ctl.c revision 312575
139297Sfenner/*- 239297Sfenner * Copyright (c) 2003-2009 Silicon Graphics International Corp. 339297Sfenner * Copyright (c) 2012 The FreeBSD Foundation 439297Sfenner * Copyright (c) 2015 Alexander Motin <mav@FreeBSD.org> 539297Sfenner * All rights reserved. 639297Sfenner * 739297Sfenner * Portions of this software were developed by Edward Tomasz Napierala 839297Sfenner * under sponsorship from the FreeBSD Foundation. 939297Sfenner * 1039297Sfenner * Redistribution and use in source and binary forms, with or without 1139297Sfenner * modification, are permitted provided that the following conditions 1239297Sfenner * are met: 1339297Sfenner * 1. Redistributions of source code must retain the above copyright 1439297Sfenner * notice, this list of conditions, and the following disclaimer, 1539297Sfenner * without modification. 1639297Sfenner * 2. Redistributions in binary form must reproduce at minimum a disclaimer 1739297Sfenner * substantially similar to the "NO WARRANTY" disclaimer below 1839297Sfenner * ("Disclaimer") and any redistribution must be conditioned upon 1939297Sfenner * including a substantially similar Disclaimer requirement for further 2039297Sfenner * binary redistribution. 21214478Srpaulo * 2239297Sfenner * NO WARRANTY 2339297Sfenner * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 2439297Sfenner * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 2539297Sfenner * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR 2639297Sfenner * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 2739297Sfenner * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 31 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 32 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 33 * POSSIBILITY OF SUCH DAMAGES. 34 * 35 * $Id$ 36 */ 37/* 38 * CAM Target Layer, a SCSI device emulation subsystem. 39 * 40 * Author: Ken Merry <ken@FreeBSD.org> 41 */ 42 43#define _CTL_C 44 45#include <sys/cdefs.h> 46__FBSDID("$FreeBSD: stable/10/sys/cam/ctl/ctl.c 312575 2017-01-21 08:32:56Z mav $"); 47 48#include <sys/param.h> 49#include <sys/systm.h> 50#include <sys/ctype.h> 51#include <sys/kernel.h> 52#include <sys/types.h> 53#include <sys/kthread.h> 54#include <sys/bio.h> 55#include <sys/fcntl.h> 56#include <sys/lock.h> 57#include <sys/module.h> 58#include <sys/mutex.h> 59#include <sys/condvar.h> 60#include <sys/malloc.h> 61#include <sys/conf.h> 62#include <sys/ioccom.h> 63#include <sys/queue.h> 64#include <sys/sbuf.h> 65#include <sys/smp.h> 66#include <sys/endian.h> 67#include <sys/sysctl.h> 68#include <vm/uma.h> 69 70#include <cam/cam.h> 71#include <cam/scsi/scsi_all.h> 72#include <cam/scsi/scsi_cd.h> 73#include <cam/scsi/scsi_da.h> 74#include <cam/ctl/ctl_io.h> 75#include <cam/ctl/ctl.h> 76#include <cam/ctl/ctl_frontend.h> 77#include <cam/ctl/ctl_util.h> 78#include <cam/ctl/ctl_backend.h> 79#include <cam/ctl/ctl_ioctl.h> 80#include <cam/ctl/ctl_ha.h> 81#include <cam/ctl/ctl_private.h> 82#include <cam/ctl/ctl_debug.h> 83#include <cam/ctl/ctl_scsi_all.h> 84#include <cam/ctl/ctl_error.h> 85 86struct ctl_softc *control_softc = NULL; 87 88/* 89 * Template mode pages. 90 */ 91 92/* 93 * Note that these are default values only. The actual values will be 94 * filled in when the user does a mode sense. 95 */ 96const static struct scsi_da_rw_recovery_page rw_er_page_default = { 97 /*page_code*/SMS_RW_ERROR_RECOVERY_PAGE, 98 /*page_length*/sizeof(struct scsi_da_rw_recovery_page) - 2, 99 /*byte3*/SMS_RWER_AWRE|SMS_RWER_ARRE, 100 /*read_retry_count*/0, 101 /*correction_span*/0, 102 /*head_offset_count*/0, 103 /*data_strobe_offset_cnt*/0, 104 /*byte8*/SMS_RWER_LBPERE, 105 /*write_retry_count*/0, 106 /*reserved2*/0, 107 /*recovery_time_limit*/{0, 0}, 108}; 109 110const static struct scsi_da_rw_recovery_page rw_er_page_changeable = { 111 /*page_code*/SMS_RW_ERROR_RECOVERY_PAGE, 112 /*page_length*/sizeof(struct scsi_da_rw_recovery_page) - 2, 113 /*byte3*/SMS_RWER_PER, 114 /*read_retry_count*/0, 115 /*correction_span*/0, 116 /*head_offset_count*/0, 117 /*data_strobe_offset_cnt*/0, 118 /*byte8*/SMS_RWER_LBPERE, 119 /*write_retry_count*/0, 120 /*reserved2*/0, 121 /*recovery_time_limit*/{0, 0}, 122}; 123 124const static struct scsi_format_page format_page_default = { 125 /*page_code*/SMS_FORMAT_DEVICE_PAGE, 126 /*page_length*/sizeof(struct scsi_format_page) - 2, 127 /*tracks_per_zone*/ {0, 0}, 128 /*alt_sectors_per_zone*/ {0, 0}, 129 /*alt_tracks_per_zone*/ {0, 0}, 130 /*alt_tracks_per_lun*/ {0, 0}, 131 /*sectors_per_track*/ {(CTL_DEFAULT_SECTORS_PER_TRACK >> 8) & 0xff, 132 CTL_DEFAULT_SECTORS_PER_TRACK & 0xff}, 133 /*bytes_per_sector*/ {0, 0}, 134 /*interleave*/ {0, 0}, 135 /*track_skew*/ {0, 0}, 136 /*cylinder_skew*/ {0, 0}, 137 /*flags*/ SFP_HSEC, 138 /*reserved*/ {0, 0, 0} 139}; 140 141const static struct scsi_format_page format_page_changeable = { 142 /*page_code*/SMS_FORMAT_DEVICE_PAGE, 143 /*page_length*/sizeof(struct scsi_format_page) - 2, 144 /*tracks_per_zone*/ {0, 0}, 145 /*alt_sectors_per_zone*/ {0, 0}, 146 /*alt_tracks_per_zone*/ {0, 0}, 147 /*alt_tracks_per_lun*/ {0, 0}, 148 /*sectors_per_track*/ {0, 0}, 149 /*bytes_per_sector*/ {0, 0}, 150 /*interleave*/ {0, 0}, 151 /*track_skew*/ {0, 0}, 152 /*cylinder_skew*/ {0, 0}, 153 /*flags*/ 0, 154 /*reserved*/ {0, 0, 0} 155}; 156 157const static struct scsi_rigid_disk_page rigid_disk_page_default = { 158 /*page_code*/SMS_RIGID_DISK_PAGE, 159 /*page_length*/sizeof(struct scsi_rigid_disk_page) - 2, 160 /*cylinders*/ {0, 0, 0}, 161 /*heads*/ CTL_DEFAULT_HEADS, 162 /*start_write_precomp*/ {0, 0, 0}, 163 /*start_reduced_current*/ {0, 0, 0}, 164 /*step_rate*/ {0, 0}, 165 /*landing_zone_cylinder*/ {0, 0, 0}, 166 /*rpl*/ SRDP_RPL_DISABLED, 167 /*rotational_offset*/ 0, 168 /*reserved1*/ 0, 169 /*rotation_rate*/ {(CTL_DEFAULT_ROTATION_RATE >> 8) & 0xff, 170 CTL_DEFAULT_ROTATION_RATE & 0xff}, 171 /*reserved2*/ {0, 0} 172}; 173 174const static struct scsi_rigid_disk_page rigid_disk_page_changeable = { 175 /*page_code*/SMS_RIGID_DISK_PAGE, 176 /*page_length*/sizeof(struct scsi_rigid_disk_page) - 2, 177 /*cylinders*/ {0, 0, 0}, 178 /*heads*/ 0, 179 /*start_write_precomp*/ {0, 0, 0}, 180 /*start_reduced_current*/ {0, 0, 0}, 181 /*step_rate*/ {0, 0}, 182 /*landing_zone_cylinder*/ {0, 0, 0}, 183 /*rpl*/ 0, 184 /*rotational_offset*/ 0, 185 /*reserved1*/ 0, 186 /*rotation_rate*/ {0, 0}, 187 /*reserved2*/ {0, 0} 188}; 189 190const static struct scsi_da_verify_recovery_page verify_er_page_default = { 191 /*page_code*/SMS_VERIFY_ERROR_RECOVERY_PAGE, 192 /*page_length*/sizeof(struct scsi_da_verify_recovery_page) - 2, 193 /*byte3*/0, 194 /*read_retry_count*/0, 195 /*reserved*/{ 0, 0, 0, 0, 0, 0 }, 196 /*recovery_time_limit*/{0, 0}, 197}; 198 199const static struct scsi_da_verify_recovery_page verify_er_page_changeable = { 200 /*page_code*/SMS_VERIFY_ERROR_RECOVERY_PAGE, 201 /*page_length*/sizeof(struct scsi_da_verify_recovery_page) - 2, 202 /*byte3*/SMS_VER_PER, 203 /*read_retry_count*/0, 204 /*reserved*/{ 0, 0, 0, 0, 0, 0 }, 205 /*recovery_time_limit*/{0, 0}, 206}; 207 208const static struct scsi_caching_page caching_page_default = { 209 /*page_code*/SMS_CACHING_PAGE, 210 /*page_length*/sizeof(struct scsi_caching_page) - 2, 211 /*flags1*/ SCP_DISC | SCP_WCE, 212 /*ret_priority*/ 0, 213 /*disable_pf_transfer_len*/ {0xff, 0xff}, 214 /*min_prefetch*/ {0, 0}, 215 /*max_prefetch*/ {0xff, 0xff}, 216 /*max_pf_ceiling*/ {0xff, 0xff}, 217 /*flags2*/ 0, 218 /*cache_segments*/ 0, 219 /*cache_seg_size*/ {0, 0}, 220 /*reserved*/ 0, 221 /*non_cache_seg_size*/ {0, 0, 0} 222}; 223 224const static struct scsi_caching_page caching_page_changeable = { 225 /*page_code*/SMS_CACHING_PAGE, 226 /*page_length*/sizeof(struct scsi_caching_page) - 2, 227 /*flags1*/ SCP_WCE | SCP_RCD, 228 /*ret_priority*/ 0, 229 /*disable_pf_transfer_len*/ {0, 0}, 230 /*min_prefetch*/ {0, 0}, 231 /*max_prefetch*/ {0, 0}, 232 /*max_pf_ceiling*/ {0, 0}, 233 /*flags2*/ 0, 234 /*cache_segments*/ 0, 235 /*cache_seg_size*/ {0, 0}, 236 /*reserved*/ 0, 237 /*non_cache_seg_size*/ {0, 0, 0} 238}; 239 240const static struct scsi_control_page control_page_default = { 241 /*page_code*/SMS_CONTROL_MODE_PAGE, 242 /*page_length*/sizeof(struct scsi_control_page) - 2, 243 /*rlec*/0, 244 /*queue_flags*/SCP_QUEUE_ALG_RESTRICTED, 245 /*eca_and_aen*/0, 246 /*flags4*/SCP_TAS, 247 /*aen_holdoff_period*/{0, 0}, 248 /*busy_timeout_period*/{0, 0}, 249 /*extended_selftest_completion_time*/{0, 0} 250}; 251 252const static struct scsi_control_page control_page_changeable = { 253 /*page_code*/SMS_CONTROL_MODE_PAGE, 254 /*page_length*/sizeof(struct scsi_control_page) - 2, 255 /*rlec*/SCP_DSENSE, 256 /*queue_flags*/SCP_QUEUE_ALG_MASK | SCP_NUAR, 257 /*eca_and_aen*/SCP_SWP, 258 /*flags4*/0, 259 /*aen_holdoff_period*/{0, 0}, 260 /*busy_timeout_period*/{0, 0}, 261 /*extended_selftest_completion_time*/{0, 0} 262}; 263 264#define CTL_CEM_LEN (sizeof(struct scsi_control_ext_page) - 4) 265 266const static struct scsi_control_ext_page control_ext_page_default = { 267 /*page_code*/SMS_CONTROL_MODE_PAGE | SMPH_SPF, 268 /*subpage_code*/0x01, 269 /*page_length*/{CTL_CEM_LEN >> 8, CTL_CEM_LEN}, 270 /*flags*/0, 271 /*prio*/0, 272 /*max_sense*/0 273}; 274 275const static struct scsi_control_ext_page control_ext_page_changeable = { 276 /*page_code*/SMS_CONTROL_MODE_PAGE | SMPH_SPF, 277 /*subpage_code*/0x01, 278 /*page_length*/{CTL_CEM_LEN >> 8, CTL_CEM_LEN}, 279 /*flags*/0, 280 /*prio*/0, 281 /*max_sense*/0xff 282}; 283 284const static struct scsi_info_exceptions_page ie_page_default = { 285 /*page_code*/SMS_INFO_EXCEPTIONS_PAGE, 286 /*page_length*/sizeof(struct scsi_info_exceptions_page) - 2, 287 /*info_flags*/SIEP_FLAGS_EWASC, 288 /*mrie*/SIEP_MRIE_NO, 289 /*interval_timer*/{0, 0, 0, 0}, 290 /*report_count*/{0, 0, 0, 1} 291}; 292 293const static struct scsi_info_exceptions_page ie_page_changeable = { 294 /*page_code*/SMS_INFO_EXCEPTIONS_PAGE, 295 /*page_length*/sizeof(struct scsi_info_exceptions_page) - 2, 296 /*info_flags*/SIEP_FLAGS_EWASC | SIEP_FLAGS_DEXCPT | SIEP_FLAGS_TEST | 297 SIEP_FLAGS_LOGERR, 298 /*mrie*/0x0f, 299 /*interval_timer*/{0xff, 0xff, 0xff, 0xff}, 300 /*report_count*/{0xff, 0xff, 0xff, 0xff} 301}; 302 303#define CTL_LBPM_LEN (sizeof(struct ctl_logical_block_provisioning_page) - 4) 304 305const static struct ctl_logical_block_provisioning_page lbp_page_default = {{ 306 /*page_code*/SMS_INFO_EXCEPTIONS_PAGE | SMPH_SPF, 307 /*subpage_code*/0x02, 308 /*page_length*/{CTL_LBPM_LEN >> 8, CTL_LBPM_LEN}, 309 /*flags*/0, 310 /*reserved*/{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}, 311 /*descr*/{}}, 312 {{/*flags*/0, 313 /*resource*/0x01, 314 /*reserved*/{0, 0}, 315 /*count*/{0, 0, 0, 0}}, 316 {/*flags*/0, 317 /*resource*/0x02, 318 /*reserved*/{0, 0}, 319 /*count*/{0, 0, 0, 0}}, 320 {/*flags*/0, 321 /*resource*/0xf1, 322 /*reserved*/{0, 0}, 323 /*count*/{0, 0, 0, 0}}, 324 {/*flags*/0, 325 /*resource*/0xf2, 326 /*reserved*/{0, 0}, 327 /*count*/{0, 0, 0, 0}} 328 } 329}; 330 331const static struct ctl_logical_block_provisioning_page lbp_page_changeable = {{ 332 /*page_code*/SMS_INFO_EXCEPTIONS_PAGE | SMPH_SPF, 333 /*subpage_code*/0x02, 334 /*page_length*/{CTL_LBPM_LEN >> 8, CTL_LBPM_LEN}, 335 /*flags*/SLBPP_SITUA, 336 /*reserved*/{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}, 337 /*descr*/{}}, 338 {{/*flags*/0, 339 /*resource*/0, 340 /*reserved*/{0, 0}, 341 /*count*/{0, 0, 0, 0}}, 342 {/*flags*/0, 343 /*resource*/0, 344 /*reserved*/{0, 0}, 345 /*count*/{0, 0, 0, 0}}, 346 {/*flags*/0, 347 /*resource*/0, 348 /*reserved*/{0, 0}, 349 /*count*/{0, 0, 0, 0}}, 350 {/*flags*/0, 351 /*resource*/0, 352 /*reserved*/{0, 0}, 353 /*count*/{0, 0, 0, 0}} 354 } 355}; 356 357const static struct scsi_cddvd_capabilities_page cddvd_page_default = { 358 /*page_code*/SMS_CDDVD_CAPS_PAGE, 359 /*page_length*/sizeof(struct scsi_cddvd_capabilities_page) - 2, 360 /*caps1*/0x3f, 361 /*caps2*/0x00, 362 /*caps3*/0xf0, 363 /*caps4*/0x00, 364 /*caps5*/0x29, 365 /*caps6*/0x00, 366 /*obsolete*/{0, 0}, 367 /*nvol_levels*/{0, 0}, 368 /*buffer_size*/{8, 0}, 369 /*obsolete2*/{0, 0}, 370 /*reserved*/0, 371 /*digital*/0, 372 /*obsolete3*/0, 373 /*copy_management*/0, 374 /*reserved2*/0, 375 /*rotation_control*/0, 376 /*cur_write_speed*/0, 377 /*num_speed_descr*/0, 378}; 379 380const static struct scsi_cddvd_capabilities_page cddvd_page_changeable = { 381 /*page_code*/SMS_CDDVD_CAPS_PAGE, 382 /*page_length*/sizeof(struct scsi_cddvd_capabilities_page) - 2, 383 /*caps1*/0, 384 /*caps2*/0, 385 /*caps3*/0, 386 /*caps4*/0, 387 /*caps5*/0, 388 /*caps6*/0, 389 /*obsolete*/{0, 0}, 390 /*nvol_levels*/{0, 0}, 391 /*buffer_size*/{0, 0}, 392 /*obsolete2*/{0, 0}, 393 /*reserved*/0, 394 /*digital*/0, 395 /*obsolete3*/0, 396 /*copy_management*/0, 397 /*reserved2*/0, 398 /*rotation_control*/0, 399 /*cur_write_speed*/0, 400 /*num_speed_descr*/0, 401}; 402 403SYSCTL_NODE(_kern_cam, OID_AUTO, ctl, CTLFLAG_RD, 0, "CAM Target Layer"); 404static int worker_threads = -1; 405TUNABLE_INT("kern.cam.ctl.worker_threads", &worker_threads); 406SYSCTL_INT(_kern_cam_ctl, OID_AUTO, worker_threads, CTLFLAG_RDTUN, 407 &worker_threads, 1, "Number of worker threads"); 408static int ctl_debug = CTL_DEBUG_NONE; 409TUNABLE_INT("kern.cam.ctl.debug", &ctl_debug); 410SYSCTL_INT(_kern_cam_ctl, OID_AUTO, debug, CTLFLAG_RWTUN, 411 &ctl_debug, 0, "Enabled debug flags"); 412 413/* 414 * Supported pages (0x00), Serial number (0x80), Device ID (0x83), 415 * Extended INQUIRY Data (0x86), Mode Page Policy (0x87), 416 * SCSI Ports (0x88), Third-party Copy (0x8F), Block limits (0xB0), 417 * Block Device Characteristics (0xB1) and Logical Block Provisioning (0xB2) 418 */ 419#define SCSI_EVPD_NUM_SUPPORTED_PAGES 10 420 421static void ctl_isc_event_handler(ctl_ha_channel chanel, ctl_ha_event event, 422 int param); 423static void ctl_copy_sense_data(union ctl_ha_msg *src, union ctl_io *dest); 424static void ctl_copy_sense_data_back(union ctl_io *src, union ctl_ha_msg *dest); 425static int ctl_init(void); 426void ctl_shutdown(void); 427static int ctl_open(struct cdev *dev, int flags, int fmt, struct thread *td); 428static int ctl_close(struct cdev *dev, int flags, int fmt, struct thread *td); 429static void ctl_serialize_other_sc_cmd(struct ctl_scsiio *ctsio); 430static void ctl_ioctl_fill_ooa(struct ctl_lun *lun, uint32_t *cur_fill_num, 431 struct ctl_ooa *ooa_hdr, 432 struct ctl_ooa_entry *kern_entries); 433static int ctl_ioctl(struct cdev *dev, u_long cmd, caddr_t addr, int flag, 434 struct thread *td); 435static int ctl_alloc_lun(struct ctl_softc *ctl_softc, struct ctl_lun *lun, 436 struct ctl_be_lun *be_lun); 437static int ctl_free_lun(struct ctl_lun *lun); 438static void ctl_create_lun(struct ctl_be_lun *be_lun); 439static struct ctl_port * ctl_io_port(struct ctl_io_hdr *io_hdr); 440 441static int ctl_do_mode_select(union ctl_io *io); 442static int ctl_pro_preempt(struct ctl_softc *softc, struct ctl_lun *lun, 443 uint64_t res_key, uint64_t sa_res_key, 444 uint8_t type, uint32_t residx, 445 struct ctl_scsiio *ctsio, 446 struct scsi_per_res_out *cdb, 447 struct scsi_per_res_out_parms* param); 448static void ctl_pro_preempt_other(struct ctl_lun *lun, 449 union ctl_ha_msg *msg); 450static void ctl_hndl_per_res_out_on_other_sc(union ctl_ha_msg *msg); 451static int ctl_inquiry_evpd_supported(struct ctl_scsiio *ctsio, int alloc_len); 452static int ctl_inquiry_evpd_serial(struct ctl_scsiio *ctsio, int alloc_len); 453static int ctl_inquiry_evpd_devid(struct ctl_scsiio *ctsio, int alloc_len); 454static int ctl_inquiry_evpd_eid(struct ctl_scsiio *ctsio, int alloc_len); 455static int ctl_inquiry_evpd_mpp(struct ctl_scsiio *ctsio, int alloc_len); 456static int ctl_inquiry_evpd_scsi_ports(struct ctl_scsiio *ctsio, 457 int alloc_len); 458static int ctl_inquiry_evpd_block_limits(struct ctl_scsiio *ctsio, 459 int alloc_len); 460static int ctl_inquiry_evpd_bdc(struct ctl_scsiio *ctsio, int alloc_len); 461static int ctl_inquiry_evpd_lbp(struct ctl_scsiio *ctsio, int alloc_len); 462static int ctl_inquiry_evpd(struct ctl_scsiio *ctsio); 463static int ctl_inquiry_std(struct ctl_scsiio *ctsio); 464static int ctl_get_lba_len(union ctl_io *io, uint64_t *lba, uint64_t *len); 465static ctl_action ctl_extent_check(union ctl_io *io1, union ctl_io *io2, 466 bool seq); 467static ctl_action ctl_extent_check_seq(union ctl_io *io1, union ctl_io *io2); 468static ctl_action ctl_check_for_blockage(struct ctl_lun *lun, 469 union ctl_io *pending_io, union ctl_io *ooa_io); 470static ctl_action ctl_check_ooa(struct ctl_lun *lun, union ctl_io *pending_io, 471 union ctl_io *starting_io); 472static int ctl_check_blocked(struct ctl_lun *lun); 473static int ctl_scsiio_lun_check(struct ctl_lun *lun, 474 const struct ctl_cmd_entry *entry, 475 struct ctl_scsiio *ctsio); 476static void ctl_failover_lun(union ctl_io *io); 477static int ctl_scsiio_precheck(struct ctl_softc *ctl_softc, 478 struct ctl_scsiio *ctsio); 479static int ctl_scsiio(struct ctl_scsiio *ctsio); 480 481static int ctl_bus_reset(struct ctl_softc *ctl_softc, union ctl_io *io); 482static int ctl_target_reset(struct ctl_softc *ctl_softc, union ctl_io *io, 483 ctl_ua_type ua_type); 484static int ctl_do_lun_reset(struct ctl_lun *lun, union ctl_io *io, 485 ctl_ua_type ua_type); 486static int ctl_lun_reset(struct ctl_softc *ctl_softc, union ctl_io *io); 487static int ctl_abort_task(union ctl_io *io); 488static int ctl_abort_task_set(union ctl_io *io); 489static int ctl_query_task(union ctl_io *io, int task_set); 490static int ctl_i_t_nexus_reset(union ctl_io *io); 491static int ctl_query_async_event(union ctl_io *io); 492static void ctl_run_task(union ctl_io *io); 493#ifdef CTL_IO_DELAY 494static void ctl_datamove_timer_wakeup(void *arg); 495static void ctl_done_timer_wakeup(void *arg); 496#endif /* CTL_IO_DELAY */ 497 498static void ctl_send_datamove_done(union ctl_io *io, int have_lock); 499static void ctl_datamove_remote_write_cb(struct ctl_ha_dt_req *rq); 500static int ctl_datamove_remote_dm_write_cb(union ctl_io *io); 501static void ctl_datamove_remote_write(union ctl_io *io); 502static int ctl_datamove_remote_dm_read_cb(union ctl_io *io); 503static void ctl_datamove_remote_read_cb(struct ctl_ha_dt_req *rq); 504static int ctl_datamove_remote_sgl_setup(union ctl_io *io); 505static int ctl_datamove_remote_xfer(union ctl_io *io, unsigned command, 506 ctl_ha_dt_cb callback); 507static void ctl_datamove_remote_read(union ctl_io *io); 508static void ctl_datamove_remote(union ctl_io *io); 509static void ctl_process_done(union ctl_io *io); 510static void ctl_lun_thread(void *arg); 511static void ctl_thresh_thread(void *arg); 512static void ctl_work_thread(void *arg); 513static void ctl_enqueue_incoming(union ctl_io *io); 514static void ctl_enqueue_rtr(union ctl_io *io); 515static void ctl_enqueue_done(union ctl_io *io); 516static void ctl_enqueue_isc(union ctl_io *io); 517static const struct ctl_cmd_entry * 518 ctl_get_cmd_entry(struct ctl_scsiio *ctsio, int *sa); 519static const struct ctl_cmd_entry * 520 ctl_validate_command(struct ctl_scsiio *ctsio); 521static int ctl_cmd_applicable(uint8_t lun_type, 522 const struct ctl_cmd_entry *entry); 523 524static uint64_t ctl_get_prkey(struct ctl_lun *lun, uint32_t residx); 525static void ctl_clr_prkey(struct ctl_lun *lun, uint32_t residx); 526static void ctl_alloc_prkey(struct ctl_lun *lun, uint32_t residx); 527static void ctl_set_prkey(struct ctl_lun *lun, uint32_t residx, uint64_t key); 528 529/* 530 * Load the serialization table. This isn't very pretty, but is probably 531 * the easiest way to do it. 532 */ 533#include "ctl_ser_table.c" 534 535/* 536 * We only need to define open, close and ioctl routines for this driver. 537 */ 538static struct cdevsw ctl_cdevsw = { 539 .d_version = D_VERSION, 540 .d_flags = 0, 541 .d_open = ctl_open, 542 .d_close = ctl_close, 543 .d_ioctl = ctl_ioctl, 544 .d_name = "ctl", 545}; 546 547 548MALLOC_DEFINE(M_CTL, "ctlmem", "Memory used for CTL"); 549 550static int ctl_module_event_handler(module_t, int /*modeventtype_t*/, void *); 551 552static moduledata_t ctl_moduledata = { 553 "ctl", 554 ctl_module_event_handler, 555 NULL 556}; 557 558DECLARE_MODULE(ctl, ctl_moduledata, SI_SUB_CONFIGURE, SI_ORDER_THIRD); 559MODULE_VERSION(ctl, 1); 560 561static struct ctl_frontend ha_frontend = 562{ 563 .name = "ha", 564}; 565 566static void 567ctl_ha_datamove(union ctl_io *io) 568{ 569 struct ctl_lun *lun; 570 struct ctl_sg_entry *sgl; 571 union ctl_ha_msg msg; 572 uint32_t sg_entries_sent; 573 int do_sg_copy, i, j; 574 575 lun = (struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 576 memset(&msg.dt, 0, sizeof(msg.dt)); 577 msg.hdr.msg_type = CTL_MSG_DATAMOVE; 578 msg.hdr.original_sc = io->io_hdr.original_sc; 579 msg.hdr.serializing_sc = io; 580 msg.hdr.nexus = io->io_hdr.nexus; 581 msg.hdr.status = io->io_hdr.status; 582 msg.dt.flags = io->io_hdr.flags; 583 584 /* 585 * We convert everything into a S/G list here. We can't 586 * pass by reference, only by value between controllers. 587 * So we can't pass a pointer to the S/G list, only as many 588 * S/G entries as we can fit in here. If it's possible for 589 * us to get more than CTL_HA_MAX_SG_ENTRIES S/G entries, 590 * then we need to break this up into multiple transfers. 591 */ 592 if (io->scsiio.kern_sg_entries == 0) { 593 msg.dt.kern_sg_entries = 1; 594#if 0 595 if (io->io_hdr.flags & CTL_FLAG_BUS_ADDR) { 596 msg.dt.sg_list[0].addr = io->scsiio.kern_data_ptr; 597 } else { 598 /* XXX KDM use busdma here! */ 599 msg.dt.sg_list[0].addr = 600 (void *)vtophys(io->scsiio.kern_data_ptr); 601 } 602#else 603 KASSERT((io->io_hdr.flags & CTL_FLAG_BUS_ADDR) == 0, 604 ("HA does not support BUS_ADDR")); 605 msg.dt.sg_list[0].addr = io->scsiio.kern_data_ptr; 606#endif 607 msg.dt.sg_list[0].len = io->scsiio.kern_data_len; 608 do_sg_copy = 0; 609 } else { 610 msg.dt.kern_sg_entries = io->scsiio.kern_sg_entries; 611 do_sg_copy = 1; 612 } 613 614 msg.dt.kern_data_len = io->scsiio.kern_data_len; 615 msg.dt.kern_total_len = io->scsiio.kern_total_len; 616 msg.dt.kern_data_resid = io->scsiio.kern_data_resid; 617 msg.dt.kern_rel_offset = io->scsiio.kern_rel_offset; 618 msg.dt.sg_sequence = 0; 619 620 /* 621 * Loop until we've sent all of the S/G entries. On the 622 * other end, we'll recompose these S/G entries into one 623 * contiguous list before processing. 624 */ 625 for (sg_entries_sent = 0; sg_entries_sent < msg.dt.kern_sg_entries; 626 msg.dt.sg_sequence++) { 627 msg.dt.cur_sg_entries = MIN((sizeof(msg.dt.sg_list) / 628 sizeof(msg.dt.sg_list[0])), 629 msg.dt.kern_sg_entries - sg_entries_sent); 630 if (do_sg_copy != 0) { 631 sgl = (struct ctl_sg_entry *)io->scsiio.kern_data_ptr; 632 for (i = sg_entries_sent, j = 0; 633 i < msg.dt.cur_sg_entries; i++, j++) { 634#if 0 635 if (io->io_hdr.flags & CTL_FLAG_BUS_ADDR) { 636 msg.dt.sg_list[j].addr = sgl[i].addr; 637 } else { 638 /* XXX KDM use busdma here! */ 639 msg.dt.sg_list[j].addr = 640 (void *)vtophys(sgl[i].addr); 641 } 642#else 643 KASSERT((io->io_hdr.flags & 644 CTL_FLAG_BUS_ADDR) == 0, 645 ("HA does not support BUS_ADDR")); 646 msg.dt.sg_list[j].addr = sgl[i].addr; 647#endif 648 msg.dt.sg_list[j].len = sgl[i].len; 649 } 650 } 651 652 sg_entries_sent += msg.dt.cur_sg_entries; 653 msg.dt.sg_last = (sg_entries_sent >= msg.dt.kern_sg_entries); 654 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, 655 sizeof(msg.dt) - sizeof(msg.dt.sg_list) + 656 sizeof(struct ctl_sg_entry) * msg.dt.cur_sg_entries, 657 M_WAITOK) > CTL_HA_STATUS_SUCCESS) { 658 io->io_hdr.port_status = 31341; 659 io->scsiio.be_move_done(io); 660 return; 661 } 662 msg.dt.sent_sg_entries = sg_entries_sent; 663 } 664 665 /* 666 * Officially handover the request from us to peer. 667 * If failover has just happened, then we must return error. 668 * If failover happen just after, then it is not our problem. 669 */ 670 if (lun) 671 mtx_lock(&lun->lun_lock); 672 if (io->io_hdr.flags & CTL_FLAG_FAILOVER) { 673 if (lun) 674 mtx_unlock(&lun->lun_lock); 675 io->io_hdr.port_status = 31342; 676 io->scsiio.be_move_done(io); 677 return; 678 } 679 io->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 680 io->io_hdr.flags |= CTL_FLAG_DMA_INPROG; 681 if (lun) 682 mtx_unlock(&lun->lun_lock); 683} 684 685static void 686ctl_ha_done(union ctl_io *io) 687{ 688 union ctl_ha_msg msg; 689 690 if (io->io_hdr.io_type == CTL_IO_SCSI) { 691 memset(&msg, 0, sizeof(msg)); 692 msg.hdr.msg_type = CTL_MSG_FINISH_IO; 693 msg.hdr.original_sc = io->io_hdr.original_sc; 694 msg.hdr.nexus = io->io_hdr.nexus; 695 msg.hdr.status = io->io_hdr.status; 696 msg.scsi.scsi_status = io->scsiio.scsi_status; 697 msg.scsi.tag_num = io->scsiio.tag_num; 698 msg.scsi.tag_type = io->scsiio.tag_type; 699 msg.scsi.sense_len = io->scsiio.sense_len; 700 msg.scsi.sense_residual = io->scsiio.sense_residual; 701 msg.scsi.residual = io->scsiio.residual; 702 memcpy(&msg.scsi.sense_data, &io->scsiio.sense_data, 703 io->scsiio.sense_len); 704 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, 705 sizeof(msg.scsi) - sizeof(msg.scsi.sense_data) + 706 msg.scsi.sense_len, M_WAITOK); 707 } 708 ctl_free_io(io); 709} 710 711static void 712ctl_isc_handler_finish_xfer(struct ctl_softc *ctl_softc, 713 union ctl_ha_msg *msg_info) 714{ 715 struct ctl_scsiio *ctsio; 716 717 if (msg_info->hdr.original_sc == NULL) { 718 printf("%s: original_sc == NULL!\n", __func__); 719 /* XXX KDM now what? */ 720 return; 721 } 722 723 ctsio = &msg_info->hdr.original_sc->scsiio; 724 ctsio->io_hdr.flags |= CTL_FLAG_IO_ACTIVE; 725 ctsio->io_hdr.msg_type = CTL_MSG_FINISH_IO; 726 ctsio->io_hdr.status = msg_info->hdr.status; 727 ctsio->scsi_status = msg_info->scsi.scsi_status; 728 ctsio->sense_len = msg_info->scsi.sense_len; 729 ctsio->sense_residual = msg_info->scsi.sense_residual; 730 ctsio->residual = msg_info->scsi.residual; 731 memcpy(&ctsio->sense_data, &msg_info->scsi.sense_data, 732 msg_info->scsi.sense_len); 733 ctl_enqueue_isc((union ctl_io *)ctsio); 734} 735 736static void 737ctl_isc_handler_finish_ser_only(struct ctl_softc *ctl_softc, 738 union ctl_ha_msg *msg_info) 739{ 740 struct ctl_scsiio *ctsio; 741 742 if (msg_info->hdr.serializing_sc == NULL) { 743 printf("%s: serializing_sc == NULL!\n", __func__); 744 /* XXX KDM now what? */ 745 return; 746 } 747 748 ctsio = &msg_info->hdr.serializing_sc->scsiio; 749 ctsio->io_hdr.msg_type = CTL_MSG_FINISH_IO; 750 ctl_enqueue_isc((union ctl_io *)ctsio); 751} 752 753void 754ctl_isc_announce_lun(struct ctl_lun *lun) 755{ 756 struct ctl_softc *softc = lun->ctl_softc; 757 union ctl_ha_msg *msg; 758 struct ctl_ha_msg_lun_pr_key pr_key; 759 int i, k; 760 761 if (softc->ha_link != CTL_HA_LINK_ONLINE) 762 return; 763 mtx_lock(&lun->lun_lock); 764 i = sizeof(msg->lun); 765 if (lun->lun_devid) 766 i += lun->lun_devid->len; 767 i += sizeof(pr_key) * lun->pr_key_count; 768alloc: 769 mtx_unlock(&lun->lun_lock); 770 msg = malloc(i, M_CTL, M_WAITOK); 771 mtx_lock(&lun->lun_lock); 772 k = sizeof(msg->lun); 773 if (lun->lun_devid) 774 k += lun->lun_devid->len; 775 k += sizeof(pr_key) * lun->pr_key_count; 776 if (i < k) { 777 free(msg, M_CTL); 778 i = k; 779 goto alloc; 780 } 781 bzero(&msg->lun, sizeof(msg->lun)); 782 msg->hdr.msg_type = CTL_MSG_LUN_SYNC; 783 msg->hdr.nexus.targ_lun = lun->lun; 784 msg->hdr.nexus.targ_mapped_lun = lun->lun; 785 msg->lun.flags = lun->flags; 786 msg->lun.pr_generation = lun->pr_generation; 787 msg->lun.pr_res_idx = lun->pr_res_idx; 788 msg->lun.pr_res_type = lun->pr_res_type; 789 msg->lun.pr_key_count = lun->pr_key_count; 790 i = 0; 791 if (lun->lun_devid) { 792 msg->lun.lun_devid_len = lun->lun_devid->len; 793 memcpy(&msg->lun.data[i], lun->lun_devid->data, 794 msg->lun.lun_devid_len); 795 i += msg->lun.lun_devid_len; 796 } 797 for (k = 0; k < CTL_MAX_INITIATORS; k++) { 798 if ((pr_key.pr_key = ctl_get_prkey(lun, k)) == 0) 799 continue; 800 pr_key.pr_iid = k; 801 memcpy(&msg->lun.data[i], &pr_key, sizeof(pr_key)); 802 i += sizeof(pr_key); 803 } 804 mtx_unlock(&lun->lun_lock); 805 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg->port, sizeof(msg->port) + i, 806 M_WAITOK); 807 free(msg, M_CTL); 808 809 if (lun->flags & CTL_LUN_PRIMARY_SC) { 810 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 811 ctl_isc_announce_mode(lun, -1, 812 lun->mode_pages.index[i].page_code & SMPH_PC_MASK, 813 lun->mode_pages.index[i].subpage); 814 } 815 } 816} 817 818void 819ctl_isc_announce_port(struct ctl_port *port) 820{ 821 struct ctl_softc *softc = port->ctl_softc; 822 union ctl_ha_msg *msg; 823 int i; 824 825 if (port->targ_port < softc->port_min || 826 port->targ_port >= softc->port_max || 827 softc->ha_link != CTL_HA_LINK_ONLINE) 828 return; 829 i = sizeof(msg->port) + strlen(port->port_name) + 1; 830 if (port->lun_map) 831 i += sizeof(uint32_t) * CTL_MAX_LUNS; 832 if (port->port_devid) 833 i += port->port_devid->len; 834 if (port->target_devid) 835 i += port->target_devid->len; 836 if (port->init_devid) 837 i += port->init_devid->len; 838 msg = malloc(i, M_CTL, M_WAITOK); 839 bzero(&msg->port, sizeof(msg->port)); 840 msg->hdr.msg_type = CTL_MSG_PORT_SYNC; 841 msg->hdr.nexus.targ_port = port->targ_port; 842 msg->port.port_type = port->port_type; 843 msg->port.physical_port = port->physical_port; 844 msg->port.virtual_port = port->virtual_port; 845 msg->port.status = port->status; 846 i = 0; 847 msg->port.name_len = sprintf(&msg->port.data[i], 848 "%d:%s", softc->ha_id, port->port_name) + 1; 849 i += msg->port.name_len; 850 if (port->lun_map) { 851 msg->port.lun_map_len = sizeof(uint32_t) * CTL_MAX_LUNS; 852 memcpy(&msg->port.data[i], port->lun_map, 853 msg->port.lun_map_len); 854 i += msg->port.lun_map_len; 855 } 856 if (port->port_devid) { 857 msg->port.port_devid_len = port->port_devid->len; 858 memcpy(&msg->port.data[i], port->port_devid->data, 859 msg->port.port_devid_len); 860 i += msg->port.port_devid_len; 861 } 862 if (port->target_devid) { 863 msg->port.target_devid_len = port->target_devid->len; 864 memcpy(&msg->port.data[i], port->target_devid->data, 865 msg->port.target_devid_len); 866 i += msg->port.target_devid_len; 867 } 868 if (port->init_devid) { 869 msg->port.init_devid_len = port->init_devid->len; 870 memcpy(&msg->port.data[i], port->init_devid->data, 871 msg->port.init_devid_len); 872 i += msg->port.init_devid_len; 873 } 874 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg->port, sizeof(msg->port) + i, 875 M_WAITOK); 876 free(msg, M_CTL); 877} 878 879void 880ctl_isc_announce_iid(struct ctl_port *port, int iid) 881{ 882 struct ctl_softc *softc = port->ctl_softc; 883 union ctl_ha_msg *msg; 884 int i, l; 885 886 if (port->targ_port < softc->port_min || 887 port->targ_port >= softc->port_max || 888 softc->ha_link != CTL_HA_LINK_ONLINE) 889 return; 890 mtx_lock(&softc->ctl_lock); 891 i = sizeof(msg->iid); 892 l = 0; 893 if (port->wwpn_iid[iid].name) 894 l = strlen(port->wwpn_iid[iid].name) + 1; 895 i += l; 896 msg = malloc(i, M_CTL, M_NOWAIT); 897 if (msg == NULL) { 898 mtx_unlock(&softc->ctl_lock); 899 return; 900 } 901 bzero(&msg->iid, sizeof(msg->iid)); 902 msg->hdr.msg_type = CTL_MSG_IID_SYNC; 903 msg->hdr.nexus.targ_port = port->targ_port; 904 msg->hdr.nexus.initid = iid; 905 msg->iid.in_use = port->wwpn_iid[iid].in_use; 906 msg->iid.name_len = l; 907 msg->iid.wwpn = port->wwpn_iid[iid].wwpn; 908 if (port->wwpn_iid[iid].name) 909 strlcpy(msg->iid.data, port->wwpn_iid[iid].name, l); 910 mtx_unlock(&softc->ctl_lock); 911 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg->iid, i, M_NOWAIT); 912 free(msg, M_CTL); 913} 914 915void 916ctl_isc_announce_mode(struct ctl_lun *lun, uint32_t initidx, 917 uint8_t page, uint8_t subpage) 918{ 919 struct ctl_softc *softc = lun->ctl_softc; 920 union ctl_ha_msg msg; 921 u_int i; 922 923 if (softc->ha_link != CTL_HA_LINK_ONLINE) 924 return; 925 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 926 if ((lun->mode_pages.index[i].page_code & SMPH_PC_MASK) == 927 page && lun->mode_pages.index[i].subpage == subpage) 928 break; 929 } 930 if (i == CTL_NUM_MODE_PAGES) 931 return; 932 933 /* Don't try to replicate pages not present on this device. */ 934 if (lun->mode_pages.index[i].page_data == NULL) 935 return; 936 937 bzero(&msg.mode, sizeof(msg.mode)); 938 msg.hdr.msg_type = CTL_MSG_MODE_SYNC; 939 msg.hdr.nexus.targ_port = initidx / CTL_MAX_INIT_PER_PORT; 940 msg.hdr.nexus.initid = initidx % CTL_MAX_INIT_PER_PORT; 941 msg.hdr.nexus.targ_lun = lun->lun; 942 msg.hdr.nexus.targ_mapped_lun = lun->lun; 943 msg.mode.page_code = page; 944 msg.mode.subpage = subpage; 945 msg.mode.page_len = lun->mode_pages.index[i].page_len; 946 memcpy(msg.mode.data, lun->mode_pages.index[i].page_data, 947 msg.mode.page_len); 948 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg.mode, sizeof(msg.mode), 949 M_WAITOK); 950} 951 952static void 953ctl_isc_ha_link_up(struct ctl_softc *softc) 954{ 955 struct ctl_port *port; 956 struct ctl_lun *lun; 957 union ctl_ha_msg msg; 958 int i; 959 960 /* Announce this node parameters to peer for validation. */ 961 msg.login.msg_type = CTL_MSG_LOGIN; 962 msg.login.version = CTL_HA_VERSION; 963 msg.login.ha_mode = softc->ha_mode; 964 msg.login.ha_id = softc->ha_id; 965 msg.login.max_luns = CTL_MAX_LUNS; 966 msg.login.max_ports = CTL_MAX_PORTS; 967 msg.login.max_init_per_port = CTL_MAX_INIT_PER_PORT; 968 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg.login, sizeof(msg.login), 969 M_WAITOK); 970 971 STAILQ_FOREACH(port, &softc->port_list, links) { 972 ctl_isc_announce_port(port); 973 for (i = 0; i < CTL_MAX_INIT_PER_PORT; i++) { 974 if (port->wwpn_iid[i].in_use) 975 ctl_isc_announce_iid(port, i); 976 } 977 } 978 STAILQ_FOREACH(lun, &softc->lun_list, links) 979 ctl_isc_announce_lun(lun); 980} 981 982static void 983ctl_isc_ha_link_down(struct ctl_softc *softc) 984{ 985 struct ctl_port *port; 986 struct ctl_lun *lun; 987 union ctl_io *io; 988 int i; 989 990 mtx_lock(&softc->ctl_lock); 991 STAILQ_FOREACH(lun, &softc->lun_list, links) { 992 mtx_lock(&lun->lun_lock); 993 if (lun->flags & CTL_LUN_PEER_SC_PRIMARY) { 994 lun->flags &= ~CTL_LUN_PEER_SC_PRIMARY; 995 ctl_est_ua_all(lun, -1, CTL_UA_ASYM_ACC_CHANGE); 996 } 997 mtx_unlock(&lun->lun_lock); 998 999 mtx_unlock(&softc->ctl_lock); 1000 io = ctl_alloc_io(softc->othersc_pool); 1001 mtx_lock(&softc->ctl_lock); 1002 ctl_zero_io(io); 1003 io->io_hdr.msg_type = CTL_MSG_FAILOVER; 1004 io->io_hdr.nexus.targ_mapped_lun = lun->lun; 1005 ctl_enqueue_isc(io); 1006 } 1007 1008 STAILQ_FOREACH(port, &softc->port_list, links) { 1009 if (port->targ_port >= softc->port_min && 1010 port->targ_port < softc->port_max) 1011 continue; 1012 port->status &= ~CTL_PORT_STATUS_ONLINE; 1013 for (i = 0; i < CTL_MAX_INIT_PER_PORT; i++) { 1014 port->wwpn_iid[i].in_use = 0; 1015 free(port->wwpn_iid[i].name, M_CTL); 1016 port->wwpn_iid[i].name = NULL; 1017 } 1018 } 1019 mtx_unlock(&softc->ctl_lock); 1020} 1021 1022static void 1023ctl_isc_ua(struct ctl_softc *softc, union ctl_ha_msg *msg, int len) 1024{ 1025 struct ctl_lun *lun; 1026 uint32_t iid = ctl_get_initindex(&msg->hdr.nexus); 1027 1028 mtx_lock(&softc->ctl_lock); 1029 if (msg->hdr.nexus.targ_mapped_lun >= CTL_MAX_LUNS || 1030 (lun = softc->ctl_luns[msg->hdr.nexus.targ_mapped_lun]) == NULL) { 1031 mtx_unlock(&softc->ctl_lock); 1032 return; 1033 } 1034 mtx_lock(&lun->lun_lock); 1035 mtx_unlock(&softc->ctl_lock); 1036 if (msg->ua.ua_type == CTL_UA_THIN_PROV_THRES && msg->ua.ua_set) 1037 memcpy(lun->ua_tpt_info, msg->ua.ua_info, 8); 1038 if (msg->ua.ua_all) { 1039 if (msg->ua.ua_set) 1040 ctl_est_ua_all(lun, iid, msg->ua.ua_type); 1041 else 1042 ctl_clr_ua_all(lun, iid, msg->ua.ua_type); 1043 } else { 1044 if (msg->ua.ua_set) 1045 ctl_est_ua(lun, iid, msg->ua.ua_type); 1046 else 1047 ctl_clr_ua(lun, iid, msg->ua.ua_type); 1048 } 1049 mtx_unlock(&lun->lun_lock); 1050} 1051 1052static void 1053ctl_isc_lun_sync(struct ctl_softc *softc, union ctl_ha_msg *msg, int len) 1054{ 1055 struct ctl_lun *lun; 1056 struct ctl_ha_msg_lun_pr_key pr_key; 1057 int i, k; 1058 ctl_lun_flags oflags; 1059 uint32_t targ_lun; 1060 1061 targ_lun = msg->hdr.nexus.targ_mapped_lun; 1062 mtx_lock(&softc->ctl_lock); 1063 if (targ_lun >= CTL_MAX_LUNS || 1064 (lun = softc->ctl_luns[targ_lun]) == NULL) { 1065 mtx_unlock(&softc->ctl_lock); 1066 return; 1067 } 1068 mtx_lock(&lun->lun_lock); 1069 mtx_unlock(&softc->ctl_lock); 1070 if (lun->flags & CTL_LUN_DISABLED) { 1071 mtx_unlock(&lun->lun_lock); 1072 return; 1073 } 1074 i = (lun->lun_devid != NULL) ? lun->lun_devid->len : 0; 1075 if (msg->lun.lun_devid_len != i || (i > 0 && 1076 memcmp(&msg->lun.data[0], lun->lun_devid->data, i) != 0)) { 1077 mtx_unlock(&lun->lun_lock); 1078 printf("%s: Received conflicting HA LUN %d\n", 1079 __func__, targ_lun); 1080 return; 1081 } else { 1082 /* Record whether peer is primary. */ 1083 oflags = lun->flags; 1084 if ((msg->lun.flags & CTL_LUN_PRIMARY_SC) && 1085 (msg->lun.flags & CTL_LUN_DISABLED) == 0) 1086 lun->flags |= CTL_LUN_PEER_SC_PRIMARY; 1087 else 1088 lun->flags &= ~CTL_LUN_PEER_SC_PRIMARY; 1089 if (oflags != lun->flags) 1090 ctl_est_ua_all(lun, -1, CTL_UA_ASYM_ACC_CHANGE); 1091 1092 /* If peer is primary and we are not -- use data */ 1093 if ((lun->flags & CTL_LUN_PRIMARY_SC) == 0 && 1094 (lun->flags & CTL_LUN_PEER_SC_PRIMARY)) { 1095 lun->pr_generation = msg->lun.pr_generation; 1096 lun->pr_res_idx = msg->lun.pr_res_idx; 1097 lun->pr_res_type = msg->lun.pr_res_type; 1098 lun->pr_key_count = msg->lun.pr_key_count; 1099 for (k = 0; k < CTL_MAX_INITIATORS; k++) 1100 ctl_clr_prkey(lun, k); 1101 for (k = 0; k < msg->lun.pr_key_count; k++) { 1102 memcpy(&pr_key, &msg->lun.data[i], 1103 sizeof(pr_key)); 1104 ctl_alloc_prkey(lun, pr_key.pr_iid); 1105 ctl_set_prkey(lun, pr_key.pr_iid, 1106 pr_key.pr_key); 1107 i += sizeof(pr_key); 1108 } 1109 } 1110 1111 mtx_unlock(&lun->lun_lock); 1112 CTL_DEBUG_PRINT(("%s: Known LUN %d, peer is %s\n", 1113 __func__, targ_lun, 1114 (msg->lun.flags & CTL_LUN_PRIMARY_SC) ? 1115 "primary" : "secondary")); 1116 1117 /* If we are primary but peer doesn't know -- notify */ 1118 if ((lun->flags & CTL_LUN_PRIMARY_SC) && 1119 (msg->lun.flags & CTL_LUN_PEER_SC_PRIMARY) == 0) 1120 ctl_isc_announce_lun(lun); 1121 } 1122} 1123 1124static void 1125ctl_isc_port_sync(struct ctl_softc *softc, union ctl_ha_msg *msg, int len) 1126{ 1127 struct ctl_port *port; 1128 struct ctl_lun *lun; 1129 int i, new; 1130 1131 port = softc->ctl_ports[msg->hdr.nexus.targ_port]; 1132 if (port == NULL) { 1133 CTL_DEBUG_PRINT(("%s: New port %d\n", __func__, 1134 msg->hdr.nexus.targ_port)); 1135 new = 1; 1136 port = malloc(sizeof(*port), M_CTL, M_WAITOK | M_ZERO); 1137 port->frontend = &ha_frontend; 1138 port->targ_port = msg->hdr.nexus.targ_port; 1139 port->fe_datamove = ctl_ha_datamove; 1140 port->fe_done = ctl_ha_done; 1141 } else if (port->frontend == &ha_frontend) { 1142 CTL_DEBUG_PRINT(("%s: Updated port %d\n", __func__, 1143 msg->hdr.nexus.targ_port)); 1144 new = 0; 1145 } else { 1146 printf("%s: Received conflicting HA port %d\n", 1147 __func__, msg->hdr.nexus.targ_port); 1148 return; 1149 } 1150 port->port_type = msg->port.port_type; 1151 port->physical_port = msg->port.physical_port; 1152 port->virtual_port = msg->port.virtual_port; 1153 port->status = msg->port.status; 1154 i = 0; 1155 free(port->port_name, M_CTL); 1156 port->port_name = strndup(&msg->port.data[i], msg->port.name_len, 1157 M_CTL); 1158 i += msg->port.name_len; 1159 if (msg->port.lun_map_len != 0) { 1160 if (port->lun_map == NULL) 1161 port->lun_map = malloc(sizeof(uint32_t) * CTL_MAX_LUNS, 1162 M_CTL, M_WAITOK); 1163 memcpy(port->lun_map, &msg->port.data[i], 1164 sizeof(uint32_t) * CTL_MAX_LUNS); 1165 i += msg->port.lun_map_len; 1166 } else { 1167 free(port->lun_map, M_CTL); 1168 port->lun_map = NULL; 1169 } 1170 if (msg->port.port_devid_len != 0) { 1171 if (port->port_devid == NULL || 1172 port->port_devid->len != msg->port.port_devid_len) { 1173 free(port->port_devid, M_CTL); 1174 port->port_devid = malloc(sizeof(struct ctl_devid) + 1175 msg->port.port_devid_len, M_CTL, M_WAITOK); 1176 } 1177 memcpy(port->port_devid->data, &msg->port.data[i], 1178 msg->port.port_devid_len); 1179 port->port_devid->len = msg->port.port_devid_len; 1180 i += msg->port.port_devid_len; 1181 } else { 1182 free(port->port_devid, M_CTL); 1183 port->port_devid = NULL; 1184 } 1185 if (msg->port.target_devid_len != 0) { 1186 if (port->target_devid == NULL || 1187 port->target_devid->len != msg->port.target_devid_len) { 1188 free(port->target_devid, M_CTL); 1189 port->target_devid = malloc(sizeof(struct ctl_devid) + 1190 msg->port.target_devid_len, M_CTL, M_WAITOK); 1191 } 1192 memcpy(port->target_devid->data, &msg->port.data[i], 1193 msg->port.target_devid_len); 1194 port->target_devid->len = msg->port.target_devid_len; 1195 i += msg->port.target_devid_len; 1196 } else { 1197 free(port->target_devid, M_CTL); 1198 port->target_devid = NULL; 1199 } 1200 if (msg->port.init_devid_len != 0) { 1201 if (port->init_devid == NULL || 1202 port->init_devid->len != msg->port.init_devid_len) { 1203 free(port->init_devid, M_CTL); 1204 port->init_devid = malloc(sizeof(struct ctl_devid) + 1205 msg->port.init_devid_len, M_CTL, M_WAITOK); 1206 } 1207 memcpy(port->init_devid->data, &msg->port.data[i], 1208 msg->port.init_devid_len); 1209 port->init_devid->len = msg->port.init_devid_len; 1210 i += msg->port.init_devid_len; 1211 } else { 1212 free(port->init_devid, M_CTL); 1213 port->init_devid = NULL; 1214 } 1215 if (new) { 1216 if (ctl_port_register(port) != 0) { 1217 printf("%s: ctl_port_register() failed with error\n", 1218 __func__); 1219 } 1220 } 1221 mtx_lock(&softc->ctl_lock); 1222 STAILQ_FOREACH(lun, &softc->lun_list, links) { 1223 if (ctl_lun_map_to_port(port, lun->lun) == UINT32_MAX) 1224 continue; 1225 mtx_lock(&lun->lun_lock); 1226 ctl_est_ua_all(lun, -1, CTL_UA_INQ_CHANGE); 1227 mtx_unlock(&lun->lun_lock); 1228 } 1229 mtx_unlock(&softc->ctl_lock); 1230} 1231 1232static void 1233ctl_isc_iid_sync(struct ctl_softc *softc, union ctl_ha_msg *msg, int len) 1234{ 1235 struct ctl_port *port; 1236 int iid; 1237 1238 port = softc->ctl_ports[msg->hdr.nexus.targ_port]; 1239 if (port == NULL) { 1240 printf("%s: Received IID for unknown port %d\n", 1241 __func__, msg->hdr.nexus.targ_port); 1242 return; 1243 } 1244 iid = msg->hdr.nexus.initid; 1245 port->wwpn_iid[iid].in_use = msg->iid.in_use; 1246 port->wwpn_iid[iid].wwpn = msg->iid.wwpn; 1247 free(port->wwpn_iid[iid].name, M_CTL); 1248 if (msg->iid.name_len) { 1249 port->wwpn_iid[iid].name = strndup(&msg->iid.data[0], 1250 msg->iid.name_len, M_CTL); 1251 } else 1252 port->wwpn_iid[iid].name = NULL; 1253} 1254 1255static void 1256ctl_isc_login(struct ctl_softc *softc, union ctl_ha_msg *msg, int len) 1257{ 1258 1259 if (msg->login.version != CTL_HA_VERSION) { 1260 printf("CTL HA peers have different versions %d != %d\n", 1261 msg->login.version, CTL_HA_VERSION); 1262 ctl_ha_msg_abort(CTL_HA_CHAN_CTL); 1263 return; 1264 } 1265 if (msg->login.ha_mode != softc->ha_mode) { 1266 printf("CTL HA peers have different ha_mode %d != %d\n", 1267 msg->login.ha_mode, softc->ha_mode); 1268 ctl_ha_msg_abort(CTL_HA_CHAN_CTL); 1269 return; 1270 } 1271 if (msg->login.ha_id == softc->ha_id) { 1272 printf("CTL HA peers have same ha_id %d\n", msg->login.ha_id); 1273 ctl_ha_msg_abort(CTL_HA_CHAN_CTL); 1274 return; 1275 } 1276 if (msg->login.max_luns != CTL_MAX_LUNS || 1277 msg->login.max_ports != CTL_MAX_PORTS || 1278 msg->login.max_init_per_port != CTL_MAX_INIT_PER_PORT) { 1279 printf("CTL HA peers have different limits\n"); 1280 ctl_ha_msg_abort(CTL_HA_CHAN_CTL); 1281 return; 1282 } 1283} 1284 1285static void 1286ctl_isc_mode_sync(struct ctl_softc *softc, union ctl_ha_msg *msg, int len) 1287{ 1288 struct ctl_lun *lun; 1289 u_int i; 1290 uint32_t initidx, targ_lun; 1291 1292 targ_lun = msg->hdr.nexus.targ_mapped_lun; 1293 mtx_lock(&softc->ctl_lock); 1294 if (targ_lun >= CTL_MAX_LUNS || 1295 (lun = softc->ctl_luns[targ_lun]) == NULL) { 1296 mtx_unlock(&softc->ctl_lock); 1297 return; 1298 } 1299 mtx_lock(&lun->lun_lock); 1300 mtx_unlock(&softc->ctl_lock); 1301 if (lun->flags & CTL_LUN_DISABLED) { 1302 mtx_unlock(&lun->lun_lock); 1303 return; 1304 } 1305 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 1306 if ((lun->mode_pages.index[i].page_code & SMPH_PC_MASK) == 1307 msg->mode.page_code && 1308 lun->mode_pages.index[i].subpage == msg->mode.subpage) 1309 break; 1310 } 1311 if (i == CTL_NUM_MODE_PAGES) { 1312 mtx_unlock(&lun->lun_lock); 1313 return; 1314 } 1315 memcpy(lun->mode_pages.index[i].page_data, msg->mode.data, 1316 lun->mode_pages.index[i].page_len); 1317 initidx = ctl_get_initindex(&msg->hdr.nexus); 1318 if (initidx != -1) 1319 ctl_est_ua_all(lun, initidx, CTL_UA_MODE_CHANGE); 1320 mtx_unlock(&lun->lun_lock); 1321} 1322 1323/* 1324 * ISC (Inter Shelf Communication) event handler. Events from the HA 1325 * subsystem come in here. 1326 */ 1327static void 1328ctl_isc_event_handler(ctl_ha_channel channel, ctl_ha_event event, int param) 1329{ 1330 struct ctl_softc *softc = control_softc; 1331 union ctl_io *io; 1332 struct ctl_prio *presio; 1333 ctl_ha_status isc_status; 1334 1335 CTL_DEBUG_PRINT(("CTL: Isc Msg event %d\n", event)); 1336 if (event == CTL_HA_EVT_MSG_RECV) { 1337 union ctl_ha_msg *msg, msgbuf; 1338 1339 if (param > sizeof(msgbuf)) 1340 msg = malloc(param, M_CTL, M_WAITOK); 1341 else 1342 msg = &msgbuf; 1343 isc_status = ctl_ha_msg_recv(CTL_HA_CHAN_CTL, msg, param, 1344 M_WAITOK); 1345 if (isc_status != CTL_HA_STATUS_SUCCESS) { 1346 printf("%s: Error receiving message: %d\n", 1347 __func__, isc_status); 1348 if (msg != &msgbuf) 1349 free(msg, M_CTL); 1350 return; 1351 } 1352 1353 CTL_DEBUG_PRINT(("CTL: msg_type %d\n", msg->msg_type)); 1354 switch (msg->hdr.msg_type) { 1355 case CTL_MSG_SERIALIZE: 1356 io = ctl_alloc_io(softc->othersc_pool); 1357 ctl_zero_io(io); 1358 // populate ctsio from msg 1359 io->io_hdr.io_type = CTL_IO_SCSI; 1360 io->io_hdr.msg_type = CTL_MSG_SERIALIZE; 1361 io->io_hdr.original_sc = msg->hdr.original_sc; 1362 io->io_hdr.flags |= CTL_FLAG_FROM_OTHER_SC | 1363 CTL_FLAG_IO_ACTIVE; 1364 /* 1365 * If we're in serialization-only mode, we don't 1366 * want to go through full done processing. Thus 1367 * the COPY flag. 1368 * 1369 * XXX KDM add another flag that is more specific. 1370 */ 1371 if (softc->ha_mode != CTL_HA_MODE_XFER) 1372 io->io_hdr.flags |= CTL_FLAG_INT_COPY; 1373 io->io_hdr.nexus = msg->hdr.nexus; 1374#if 0 1375 printf("port %u, iid %u, lun %u\n", 1376 io->io_hdr.nexus.targ_port, 1377 io->io_hdr.nexus.initid, 1378 io->io_hdr.nexus.targ_lun); 1379#endif 1380 io->scsiio.tag_num = msg->scsi.tag_num; 1381 io->scsiio.tag_type = msg->scsi.tag_type; 1382#ifdef CTL_TIME_IO 1383 io->io_hdr.start_time = time_uptime; 1384 getbinuptime(&io->io_hdr.start_bt); 1385#endif /* CTL_TIME_IO */ 1386 io->scsiio.cdb_len = msg->scsi.cdb_len; 1387 memcpy(io->scsiio.cdb, msg->scsi.cdb, 1388 CTL_MAX_CDBLEN); 1389 if (softc->ha_mode == CTL_HA_MODE_XFER) { 1390 const struct ctl_cmd_entry *entry; 1391 1392 entry = ctl_get_cmd_entry(&io->scsiio, NULL); 1393 io->io_hdr.flags &= ~CTL_FLAG_DATA_MASK; 1394 io->io_hdr.flags |= 1395 entry->flags & CTL_FLAG_DATA_MASK; 1396 } 1397 ctl_enqueue_isc(io); 1398 break; 1399 1400 /* Performed on the Originating SC, XFER mode only */ 1401 case CTL_MSG_DATAMOVE: { 1402 struct ctl_sg_entry *sgl; 1403 int i, j; 1404 1405 io = msg->hdr.original_sc; 1406 if (io == NULL) { 1407 printf("%s: original_sc == NULL!\n", __func__); 1408 /* XXX KDM do something here */ 1409 break; 1410 } 1411 io->io_hdr.msg_type = CTL_MSG_DATAMOVE; 1412 io->io_hdr.flags |= CTL_FLAG_IO_ACTIVE; 1413 /* 1414 * Keep track of this, we need to send it back over 1415 * when the datamove is complete. 1416 */ 1417 io->io_hdr.serializing_sc = msg->hdr.serializing_sc; 1418 if (msg->hdr.status == CTL_SUCCESS) 1419 io->io_hdr.status = msg->hdr.status; 1420 1421 if (msg->dt.sg_sequence == 0) { 1422#ifdef CTL_TIME_IO 1423 getbinuptime(&io->io_hdr.dma_start_bt); 1424#endif 1425 i = msg->dt.kern_sg_entries + 1426 msg->dt.kern_data_len / 1427 CTL_HA_DATAMOVE_SEGMENT + 1; 1428 sgl = malloc(sizeof(*sgl) * i, M_CTL, 1429 M_WAITOK | M_ZERO); 1430 io->io_hdr.remote_sglist = sgl; 1431 io->io_hdr.local_sglist = 1432 &sgl[msg->dt.kern_sg_entries]; 1433 1434 io->scsiio.kern_data_ptr = (uint8_t *)sgl; 1435 1436 io->scsiio.kern_sg_entries = 1437 msg->dt.kern_sg_entries; 1438 io->scsiio.rem_sg_entries = 1439 msg->dt.kern_sg_entries; 1440 io->scsiio.kern_data_len = 1441 msg->dt.kern_data_len; 1442 io->scsiio.kern_total_len = 1443 msg->dt.kern_total_len; 1444 io->scsiio.kern_data_resid = 1445 msg->dt.kern_data_resid; 1446 io->scsiio.kern_rel_offset = 1447 msg->dt.kern_rel_offset; 1448 io->io_hdr.flags &= ~CTL_FLAG_BUS_ADDR; 1449 io->io_hdr.flags |= msg->dt.flags & 1450 CTL_FLAG_BUS_ADDR; 1451 } else 1452 sgl = (struct ctl_sg_entry *) 1453 io->scsiio.kern_data_ptr; 1454 1455 for (i = msg->dt.sent_sg_entries, j = 0; 1456 i < (msg->dt.sent_sg_entries + 1457 msg->dt.cur_sg_entries); i++, j++) { 1458 sgl[i].addr = msg->dt.sg_list[j].addr; 1459 sgl[i].len = msg->dt.sg_list[j].len; 1460 1461#if 0 1462 printf("%s: DATAMOVE: %p,%lu j=%d, i=%d\n", 1463 __func__, sgl[i].addr, sgl[i].len, j, i); 1464#endif 1465 } 1466 1467 /* 1468 * If this is the last piece of the I/O, we've got 1469 * the full S/G list. Queue processing in the thread. 1470 * Otherwise wait for the next piece. 1471 */ 1472 if (msg->dt.sg_last != 0) 1473 ctl_enqueue_isc(io); 1474 break; 1475 } 1476 /* Performed on the Serializing (primary) SC, XFER mode only */ 1477 case CTL_MSG_DATAMOVE_DONE: { 1478 if (msg->hdr.serializing_sc == NULL) { 1479 printf("%s: serializing_sc == NULL!\n", 1480 __func__); 1481 /* XXX KDM now what? */ 1482 break; 1483 } 1484 /* 1485 * We grab the sense information here in case 1486 * there was a failure, so we can return status 1487 * back to the initiator. 1488 */ 1489 io = msg->hdr.serializing_sc; 1490 io->io_hdr.msg_type = CTL_MSG_DATAMOVE_DONE; 1491 io->io_hdr.flags &= ~CTL_FLAG_DMA_INPROG; 1492 io->io_hdr.flags |= CTL_FLAG_IO_ACTIVE; 1493 io->io_hdr.port_status = msg->scsi.fetd_status; 1494 io->scsiio.residual = msg->scsi.residual; 1495 if (msg->hdr.status != CTL_STATUS_NONE) { 1496 io->io_hdr.status = msg->hdr.status; 1497 io->scsiio.scsi_status = msg->scsi.scsi_status; 1498 io->scsiio.sense_len = msg->scsi.sense_len; 1499 io->scsiio.sense_residual =msg->scsi.sense_residual; 1500 memcpy(&io->scsiio.sense_data, 1501 &msg->scsi.sense_data, 1502 msg->scsi.sense_len); 1503 if (msg->hdr.status == CTL_SUCCESS) 1504 io->io_hdr.flags |= CTL_FLAG_STATUS_SENT; 1505 } 1506 ctl_enqueue_isc(io); 1507 break; 1508 } 1509 1510 /* Preformed on Originating SC, SER_ONLY mode */ 1511 case CTL_MSG_R2R: 1512 io = msg->hdr.original_sc; 1513 if (io == NULL) { 1514 printf("%s: original_sc == NULL!\n", 1515 __func__); 1516 break; 1517 } 1518 io->io_hdr.flags |= CTL_FLAG_IO_ACTIVE; 1519 io->io_hdr.msg_type = CTL_MSG_R2R; 1520 io->io_hdr.serializing_sc = msg->hdr.serializing_sc; 1521 ctl_enqueue_isc(io); 1522 break; 1523 1524 /* 1525 * Performed on Serializing(i.e. primary SC) SC in SER_ONLY 1526 * mode. 1527 * Performed on the Originating (i.e. secondary) SC in XFER 1528 * mode 1529 */ 1530 case CTL_MSG_FINISH_IO: 1531 if (softc->ha_mode == CTL_HA_MODE_XFER) 1532 ctl_isc_handler_finish_xfer(softc, msg); 1533 else 1534 ctl_isc_handler_finish_ser_only(softc, msg); 1535 break; 1536 1537 /* Preformed on Originating SC */ 1538 case CTL_MSG_BAD_JUJU: 1539 io = msg->hdr.original_sc; 1540 if (io == NULL) { 1541 printf("%s: Bad JUJU!, original_sc is NULL!\n", 1542 __func__); 1543 break; 1544 } 1545 ctl_copy_sense_data(msg, io); 1546 /* 1547 * IO should have already been cleaned up on other 1548 * SC so clear this flag so we won't send a message 1549 * back to finish the IO there. 1550 */ 1551 io->io_hdr.flags &= ~CTL_FLAG_SENT_2OTHER_SC; 1552 io->io_hdr.flags |= CTL_FLAG_IO_ACTIVE; 1553 1554 /* io = msg->hdr.serializing_sc; */ 1555 io->io_hdr.msg_type = CTL_MSG_BAD_JUJU; 1556 ctl_enqueue_isc(io); 1557 break; 1558 1559 /* Handle resets sent from the other side */ 1560 case CTL_MSG_MANAGE_TASKS: { 1561 struct ctl_taskio *taskio; 1562 taskio = (struct ctl_taskio *)ctl_alloc_io( 1563 softc->othersc_pool); 1564 ctl_zero_io((union ctl_io *)taskio); 1565 taskio->io_hdr.io_type = CTL_IO_TASK; 1566 taskio->io_hdr.flags |= CTL_FLAG_FROM_OTHER_SC; 1567 taskio->io_hdr.nexus = msg->hdr.nexus; 1568 taskio->task_action = msg->task.task_action; 1569 taskio->tag_num = msg->task.tag_num; 1570 taskio->tag_type = msg->task.tag_type; 1571#ifdef CTL_TIME_IO 1572 taskio->io_hdr.start_time = time_uptime; 1573 getbinuptime(&taskio->io_hdr.start_bt); 1574#endif /* CTL_TIME_IO */ 1575 ctl_run_task((union ctl_io *)taskio); 1576 break; 1577 } 1578 /* Persistent Reserve action which needs attention */ 1579 case CTL_MSG_PERS_ACTION: 1580 presio = (struct ctl_prio *)ctl_alloc_io( 1581 softc->othersc_pool); 1582 ctl_zero_io((union ctl_io *)presio); 1583 presio->io_hdr.msg_type = CTL_MSG_PERS_ACTION; 1584 presio->io_hdr.flags |= CTL_FLAG_FROM_OTHER_SC; 1585 presio->io_hdr.nexus = msg->hdr.nexus; 1586 presio->pr_msg = msg->pr; 1587 ctl_enqueue_isc((union ctl_io *)presio); 1588 break; 1589 case CTL_MSG_UA: 1590 ctl_isc_ua(softc, msg, param); 1591 break; 1592 case CTL_MSG_PORT_SYNC: 1593 ctl_isc_port_sync(softc, msg, param); 1594 break; 1595 case CTL_MSG_LUN_SYNC: 1596 ctl_isc_lun_sync(softc, msg, param); 1597 break; 1598 case CTL_MSG_IID_SYNC: 1599 ctl_isc_iid_sync(softc, msg, param); 1600 break; 1601 case CTL_MSG_LOGIN: 1602 ctl_isc_login(softc, msg, param); 1603 break; 1604 case CTL_MSG_MODE_SYNC: 1605 ctl_isc_mode_sync(softc, msg, param); 1606 break; 1607 default: 1608 printf("Received HA message of unknown type %d\n", 1609 msg->hdr.msg_type); 1610 ctl_ha_msg_abort(CTL_HA_CHAN_CTL); 1611 break; 1612 } 1613 if (msg != &msgbuf) 1614 free(msg, M_CTL); 1615 } else if (event == CTL_HA_EVT_LINK_CHANGE) { 1616 printf("CTL: HA link status changed from %d to %d\n", 1617 softc->ha_link, param); 1618 if (param == softc->ha_link) 1619 return; 1620 if (softc->ha_link == CTL_HA_LINK_ONLINE) { 1621 softc->ha_link = param; 1622 ctl_isc_ha_link_down(softc); 1623 } else { 1624 softc->ha_link = param; 1625 if (softc->ha_link == CTL_HA_LINK_ONLINE) 1626 ctl_isc_ha_link_up(softc); 1627 } 1628 return; 1629 } else { 1630 printf("ctl_isc_event_handler: Unknown event %d\n", event); 1631 return; 1632 } 1633} 1634 1635static void 1636ctl_copy_sense_data(union ctl_ha_msg *src, union ctl_io *dest) 1637{ 1638 1639 memcpy(&dest->scsiio.sense_data, &src->scsi.sense_data, 1640 src->scsi.sense_len); 1641 dest->scsiio.scsi_status = src->scsi.scsi_status; 1642 dest->scsiio.sense_len = src->scsi.sense_len; 1643 dest->io_hdr.status = src->hdr.status; 1644} 1645 1646static void 1647ctl_copy_sense_data_back(union ctl_io *src, union ctl_ha_msg *dest) 1648{ 1649 1650 memcpy(&dest->scsi.sense_data, &src->scsiio.sense_data, 1651 src->scsiio.sense_len); 1652 dest->scsi.scsi_status = src->scsiio.scsi_status; 1653 dest->scsi.sense_len = src->scsiio.sense_len; 1654 dest->hdr.status = src->io_hdr.status; 1655} 1656 1657void 1658ctl_est_ua(struct ctl_lun *lun, uint32_t initidx, ctl_ua_type ua) 1659{ 1660 struct ctl_softc *softc = lun->ctl_softc; 1661 ctl_ua_type *pu; 1662 1663 if (initidx < softc->init_min || initidx >= softc->init_max) 1664 return; 1665 mtx_assert(&lun->lun_lock, MA_OWNED); 1666 pu = lun->pending_ua[initidx / CTL_MAX_INIT_PER_PORT]; 1667 if (pu == NULL) 1668 return; 1669 pu[initidx % CTL_MAX_INIT_PER_PORT] |= ua; 1670} 1671 1672void 1673ctl_est_ua_port(struct ctl_lun *lun, int port, uint32_t except, ctl_ua_type ua) 1674{ 1675 int i; 1676 1677 mtx_assert(&lun->lun_lock, MA_OWNED); 1678 if (lun->pending_ua[port] == NULL) 1679 return; 1680 for (i = 0; i < CTL_MAX_INIT_PER_PORT; i++) { 1681 if (port * CTL_MAX_INIT_PER_PORT + i == except) 1682 continue; 1683 lun->pending_ua[port][i] |= ua; 1684 } 1685} 1686 1687void 1688ctl_est_ua_all(struct ctl_lun *lun, uint32_t except, ctl_ua_type ua) 1689{ 1690 struct ctl_softc *softc = lun->ctl_softc; 1691 int i; 1692 1693 mtx_assert(&lun->lun_lock, MA_OWNED); 1694 for (i = softc->port_min; i < softc->port_max; i++) 1695 ctl_est_ua_port(lun, i, except, ua); 1696} 1697 1698void 1699ctl_clr_ua(struct ctl_lun *lun, uint32_t initidx, ctl_ua_type ua) 1700{ 1701 struct ctl_softc *softc = lun->ctl_softc; 1702 ctl_ua_type *pu; 1703 1704 if (initidx < softc->init_min || initidx >= softc->init_max) 1705 return; 1706 mtx_assert(&lun->lun_lock, MA_OWNED); 1707 pu = lun->pending_ua[initidx / CTL_MAX_INIT_PER_PORT]; 1708 if (pu == NULL) 1709 return; 1710 pu[initidx % CTL_MAX_INIT_PER_PORT] &= ~ua; 1711} 1712 1713void 1714ctl_clr_ua_all(struct ctl_lun *lun, uint32_t except, ctl_ua_type ua) 1715{ 1716 struct ctl_softc *softc = lun->ctl_softc; 1717 int i, j; 1718 1719 mtx_assert(&lun->lun_lock, MA_OWNED); 1720 for (i = softc->port_min; i < softc->port_max; i++) { 1721 if (lun->pending_ua[i] == NULL) 1722 continue; 1723 for (j = 0; j < CTL_MAX_INIT_PER_PORT; j++) { 1724 if (i * CTL_MAX_INIT_PER_PORT + j == except) 1725 continue; 1726 lun->pending_ua[i][j] &= ~ua; 1727 } 1728 } 1729} 1730 1731void 1732ctl_clr_ua_allluns(struct ctl_softc *ctl_softc, uint32_t initidx, 1733 ctl_ua_type ua_type) 1734{ 1735 struct ctl_lun *lun; 1736 1737 mtx_assert(&ctl_softc->ctl_lock, MA_OWNED); 1738 STAILQ_FOREACH(lun, &ctl_softc->lun_list, links) { 1739 mtx_lock(&lun->lun_lock); 1740 ctl_clr_ua(lun, initidx, ua_type); 1741 mtx_unlock(&lun->lun_lock); 1742 } 1743} 1744 1745static int 1746ctl_ha_role_sysctl(SYSCTL_HANDLER_ARGS) 1747{ 1748 struct ctl_softc *softc = (struct ctl_softc *)arg1; 1749 struct ctl_lun *lun; 1750 struct ctl_lun_req ireq; 1751 int error, value; 1752 1753 value = (softc->flags & CTL_FLAG_ACTIVE_SHELF) ? 0 : 1; 1754 error = sysctl_handle_int(oidp, &value, 0, req); 1755 if ((error != 0) || (req->newptr == NULL)) 1756 return (error); 1757 1758 mtx_lock(&softc->ctl_lock); 1759 if (value == 0) 1760 softc->flags |= CTL_FLAG_ACTIVE_SHELF; 1761 else 1762 softc->flags &= ~CTL_FLAG_ACTIVE_SHELF; 1763 STAILQ_FOREACH(lun, &softc->lun_list, links) { 1764 mtx_unlock(&softc->ctl_lock); 1765 bzero(&ireq, sizeof(ireq)); 1766 ireq.reqtype = CTL_LUNREQ_MODIFY; 1767 ireq.reqdata.modify.lun_id = lun->lun; 1768 lun->backend->ioctl(NULL, CTL_LUN_REQ, (caddr_t)&ireq, 0, 1769 curthread); 1770 if (ireq.status != CTL_LUN_OK) { 1771 printf("%s: CTL_LUNREQ_MODIFY returned %d '%s'\n", 1772 __func__, ireq.status, ireq.error_str); 1773 } 1774 mtx_lock(&softc->ctl_lock); 1775 } 1776 mtx_unlock(&softc->ctl_lock); 1777 return (0); 1778} 1779 1780static int 1781ctl_init(void) 1782{ 1783 struct make_dev_args args; 1784 struct ctl_softc *softc; 1785 void *other_pool; 1786 int i, error; 1787 1788 softc = control_softc = malloc(sizeof(*control_softc), M_DEVBUF, 1789 M_WAITOK | M_ZERO); 1790 1791 make_dev_args_init(&args); 1792 args.mda_devsw = &ctl_cdevsw; 1793 args.mda_uid = UID_ROOT; 1794 args.mda_gid = GID_OPERATOR; 1795 args.mda_mode = 0600; 1796 args.mda_si_drv1 = softc; 1797 error = make_dev_s(&args, &softc->dev, "cam/ctl"); 1798 if (error != 0) { 1799 free(control_softc, M_DEVBUF); 1800 return (error); 1801 } 1802 1803 sysctl_ctx_init(&softc->sysctl_ctx); 1804 softc->sysctl_tree = SYSCTL_ADD_NODE(&softc->sysctl_ctx, 1805 SYSCTL_STATIC_CHILDREN(_kern_cam), OID_AUTO, "ctl", 1806 CTLFLAG_RD, 0, "CAM Target Layer"); 1807 1808 if (softc->sysctl_tree == NULL) { 1809 printf("%s: unable to allocate sysctl tree\n", __func__); 1810 destroy_dev(softc->dev); 1811 free(control_softc, M_DEVBUF); 1812 control_softc = NULL; 1813 return (ENOMEM); 1814 } 1815 1816 mtx_init(&softc->ctl_lock, "CTL mutex", NULL, MTX_DEF); 1817 softc->io_zone = uma_zcreate("CTL IO", sizeof(union ctl_io), 1818 NULL, NULL, NULL, NULL, UMA_ALIGN_PTR, 0); 1819 softc->flags = 0; 1820 1821 TUNABLE_INT_FETCH("kern.cam.ctl.ha_mode", (int *)&softc->ha_mode); 1822 SYSCTL_ADD_INT(&softc->sysctl_ctx, SYSCTL_CHILDREN(softc->sysctl_tree), 1823 OID_AUTO, "ha_mode", CTLFLAG_RDTUN, (int *)&softc->ha_mode, 0, 1824 "HA mode (0 - act/stby, 1 - serialize only, 2 - xfer)"); 1825 1826 /* 1827 * In Copan's HA scheme, the "master" and "slave" roles are 1828 * figured out through the slot the controller is in. Although it 1829 * is an active/active system, someone has to be in charge. 1830 */ 1831 TUNABLE_INT_FETCH("kern.cam.ctl.ha_id", &softc->ha_id); 1832 SYSCTL_ADD_INT(&softc->sysctl_ctx, SYSCTL_CHILDREN(softc->sysctl_tree), 1833 OID_AUTO, "ha_id", CTLFLAG_RDTUN, &softc->ha_id, 0, 1834 "HA head ID (0 - no HA)"); 1835 if (softc->ha_id == 0 || softc->ha_id > NUM_HA_SHELVES) { 1836 softc->flags |= CTL_FLAG_ACTIVE_SHELF; 1837 softc->is_single = 1; 1838 softc->port_cnt = CTL_MAX_PORTS; 1839 softc->port_min = 0; 1840 } else { 1841 softc->port_cnt = CTL_MAX_PORTS / NUM_HA_SHELVES; 1842 softc->port_min = (softc->ha_id - 1) * softc->port_cnt; 1843 } 1844 softc->port_max = softc->port_min + softc->port_cnt; 1845 softc->init_min = softc->port_min * CTL_MAX_INIT_PER_PORT; 1846 softc->init_max = softc->port_max * CTL_MAX_INIT_PER_PORT; 1847 1848 SYSCTL_ADD_INT(&softc->sysctl_ctx, SYSCTL_CHILDREN(softc->sysctl_tree), 1849 OID_AUTO, "ha_link", CTLFLAG_RD, (int *)&softc->ha_link, 0, 1850 "HA link state (0 - offline, 1 - unknown, 2 - online)"); 1851 1852 STAILQ_INIT(&softc->lun_list); 1853 STAILQ_INIT(&softc->pending_lun_queue); 1854 STAILQ_INIT(&softc->fe_list); 1855 STAILQ_INIT(&softc->port_list); 1856 STAILQ_INIT(&softc->be_list); 1857 ctl_tpc_init(softc); 1858 1859 if (ctl_pool_create(softc, "othersc", CTL_POOL_ENTRIES_OTHER_SC, 1860 &other_pool) != 0) 1861 { 1862 printf("ctl: can't allocate %d entry other SC pool, " 1863 "exiting\n", CTL_POOL_ENTRIES_OTHER_SC); 1864 return (ENOMEM); 1865 } 1866 softc->othersc_pool = other_pool; 1867 1868 if (worker_threads <= 0) 1869 worker_threads = max(1, mp_ncpus / 4); 1870 if (worker_threads > CTL_MAX_THREADS) 1871 worker_threads = CTL_MAX_THREADS; 1872 1873 for (i = 0; i < worker_threads; i++) { 1874 struct ctl_thread *thr = &softc->threads[i]; 1875 1876 mtx_init(&thr->queue_lock, "CTL queue mutex", NULL, MTX_DEF); 1877 thr->ctl_softc = softc; 1878 STAILQ_INIT(&thr->incoming_queue); 1879 STAILQ_INIT(&thr->rtr_queue); 1880 STAILQ_INIT(&thr->done_queue); 1881 STAILQ_INIT(&thr->isc_queue); 1882 1883 error = kproc_kthread_add(ctl_work_thread, thr, 1884 &softc->ctl_proc, &thr->thread, 0, 0, "ctl", "work%d", i); 1885 if (error != 0) { 1886 printf("error creating CTL work thread!\n"); 1887 ctl_pool_free(other_pool); 1888 return (error); 1889 } 1890 } 1891 error = kproc_kthread_add(ctl_lun_thread, softc, 1892 &softc->ctl_proc, NULL, 0, 0, "ctl", "lun"); 1893 if (error != 0) { 1894 printf("error creating CTL lun thread!\n"); 1895 ctl_pool_free(other_pool); 1896 return (error); 1897 } 1898 error = kproc_kthread_add(ctl_thresh_thread, softc, 1899 &softc->ctl_proc, NULL, 0, 0, "ctl", "thresh"); 1900 if (error != 0) { 1901 printf("error creating CTL threshold thread!\n"); 1902 ctl_pool_free(other_pool); 1903 return (error); 1904 } 1905 1906 SYSCTL_ADD_PROC(&softc->sysctl_ctx,SYSCTL_CHILDREN(softc->sysctl_tree), 1907 OID_AUTO, "ha_role", CTLTYPE_INT | CTLFLAG_RWTUN, 1908 softc, 0, ctl_ha_role_sysctl, "I", "HA role for this head"); 1909 1910 if (softc->is_single == 0) { 1911 ctl_frontend_register(&ha_frontend); 1912 if (ctl_ha_msg_init(softc) != CTL_HA_STATUS_SUCCESS) { 1913 printf("ctl_init: ctl_ha_msg_init failed.\n"); 1914 softc->is_single = 1; 1915 } else 1916 if (ctl_ha_msg_register(CTL_HA_CHAN_CTL, ctl_isc_event_handler) 1917 != CTL_HA_STATUS_SUCCESS) { 1918 printf("ctl_init: ctl_ha_msg_register failed.\n"); 1919 softc->is_single = 1; 1920 } 1921 } 1922 return (0); 1923} 1924 1925void 1926ctl_shutdown(void) 1927{ 1928 struct ctl_softc *softc = control_softc; 1929 struct ctl_lun *lun, *next_lun; 1930 1931 if (softc->is_single == 0) { 1932 ctl_ha_msg_shutdown(softc); 1933 if (ctl_ha_msg_deregister(CTL_HA_CHAN_CTL) 1934 != CTL_HA_STATUS_SUCCESS) 1935 printf("%s: ctl_ha_msg_deregister failed.\n", __func__); 1936 if (ctl_ha_msg_destroy(softc) != CTL_HA_STATUS_SUCCESS) 1937 printf("%s: ctl_ha_msg_destroy failed.\n", __func__); 1938 ctl_frontend_deregister(&ha_frontend); 1939 } 1940 1941 mtx_lock(&softc->ctl_lock); 1942 1943 STAILQ_FOREACH_SAFE(lun, &softc->lun_list, links, next_lun) 1944 ctl_free_lun(lun); 1945 1946 mtx_unlock(&softc->ctl_lock); 1947 1948#if 0 1949 ctl_shutdown_thread(softc->work_thread); 1950 mtx_destroy(&softc->queue_lock); 1951#endif 1952 1953 ctl_tpc_shutdown(softc); 1954 uma_zdestroy(softc->io_zone); 1955 mtx_destroy(&softc->ctl_lock); 1956 1957 destroy_dev(softc->dev); 1958 1959 sysctl_ctx_free(&softc->sysctl_ctx); 1960 1961 free(control_softc, M_DEVBUF); 1962 control_softc = NULL; 1963} 1964 1965static int 1966ctl_module_event_handler(module_t mod, int what, void *arg) 1967{ 1968 1969 switch (what) { 1970 case MOD_LOAD: 1971 return (ctl_init()); 1972 case MOD_UNLOAD: 1973 return (EBUSY); 1974 default: 1975 return (EOPNOTSUPP); 1976 } 1977} 1978 1979/* 1980 * XXX KDM should we do some access checks here? Bump a reference count to 1981 * prevent a CTL module from being unloaded while someone has it open? 1982 */ 1983static int 1984ctl_open(struct cdev *dev, int flags, int fmt, struct thread *td) 1985{ 1986 return (0); 1987} 1988 1989static int 1990ctl_close(struct cdev *dev, int flags, int fmt, struct thread *td) 1991{ 1992 return (0); 1993} 1994 1995/* 1996 * Remove an initiator by port number and initiator ID. 1997 * Returns 0 for success, -1 for failure. 1998 */ 1999int 2000ctl_remove_initiator(struct ctl_port *port, int iid) 2001{ 2002 struct ctl_softc *softc = port->ctl_softc; 2003 2004 mtx_assert(&softc->ctl_lock, MA_NOTOWNED); 2005 2006 if (iid > CTL_MAX_INIT_PER_PORT) { 2007 printf("%s: initiator ID %u > maximun %u!\n", 2008 __func__, iid, CTL_MAX_INIT_PER_PORT); 2009 return (-1); 2010 } 2011 2012 mtx_lock(&softc->ctl_lock); 2013 port->wwpn_iid[iid].in_use--; 2014 port->wwpn_iid[iid].last_use = time_uptime; 2015 mtx_unlock(&softc->ctl_lock); 2016 ctl_isc_announce_iid(port, iid); 2017 2018 return (0); 2019} 2020 2021/* 2022 * Add an initiator to the initiator map. 2023 * Returns iid for success, < 0 for failure. 2024 */ 2025int 2026ctl_add_initiator(struct ctl_port *port, int iid, uint64_t wwpn, char *name) 2027{ 2028 struct ctl_softc *softc = port->ctl_softc; 2029 time_t best_time; 2030 int i, best; 2031 2032 mtx_assert(&softc->ctl_lock, MA_NOTOWNED); 2033 2034 if (iid >= CTL_MAX_INIT_PER_PORT) { 2035 printf("%s: WWPN %#jx initiator ID %u > maximum %u!\n", 2036 __func__, wwpn, iid, CTL_MAX_INIT_PER_PORT); 2037 free(name, M_CTL); 2038 return (-1); 2039 } 2040 2041 mtx_lock(&softc->ctl_lock); 2042 2043 if (iid < 0 && (wwpn != 0 || name != NULL)) { 2044 for (i = 0; i < CTL_MAX_INIT_PER_PORT; i++) { 2045 if (wwpn != 0 && wwpn == port->wwpn_iid[i].wwpn) { 2046 iid = i; 2047 break; 2048 } 2049 if (name != NULL && port->wwpn_iid[i].name != NULL && 2050 strcmp(name, port->wwpn_iid[i].name) == 0) { 2051 iid = i; 2052 break; 2053 } 2054 } 2055 } 2056 2057 if (iid < 0) { 2058 for (i = 0; i < CTL_MAX_INIT_PER_PORT; i++) { 2059 if (port->wwpn_iid[i].in_use == 0 && 2060 port->wwpn_iid[i].wwpn == 0 && 2061 port->wwpn_iid[i].name == NULL) { 2062 iid = i; 2063 break; 2064 } 2065 } 2066 } 2067 2068 if (iid < 0) { 2069 best = -1; 2070 best_time = INT32_MAX; 2071 for (i = 0; i < CTL_MAX_INIT_PER_PORT; i++) { 2072 if (port->wwpn_iid[i].in_use == 0) { 2073 if (port->wwpn_iid[i].last_use < best_time) { 2074 best = i; 2075 best_time = port->wwpn_iid[i].last_use; 2076 } 2077 } 2078 } 2079 iid = best; 2080 } 2081 2082 if (iid < 0) { 2083 mtx_unlock(&softc->ctl_lock); 2084 free(name, M_CTL); 2085 return (-2); 2086 } 2087 2088 if (port->wwpn_iid[iid].in_use > 0 && (wwpn != 0 || name != NULL)) { 2089 /* 2090 * This is not an error yet. 2091 */ 2092 if (wwpn != 0 && wwpn == port->wwpn_iid[iid].wwpn) { 2093#if 0 2094 printf("%s: port %d iid %u WWPN %#jx arrived" 2095 " again\n", __func__, port->targ_port, 2096 iid, (uintmax_t)wwpn); 2097#endif 2098 goto take; 2099 } 2100 if (name != NULL && port->wwpn_iid[iid].name != NULL && 2101 strcmp(name, port->wwpn_iid[iid].name) == 0) { 2102#if 0 2103 printf("%s: port %d iid %u name '%s' arrived" 2104 " again\n", __func__, port->targ_port, 2105 iid, name); 2106#endif 2107 goto take; 2108 } 2109 2110 /* 2111 * This is an error, but what do we do about it? The 2112 * driver is telling us we have a new WWPN for this 2113 * initiator ID, so we pretty much need to use it. 2114 */ 2115 printf("%s: port %d iid %u WWPN %#jx '%s' arrived," 2116 " but WWPN %#jx '%s' is still at that address\n", 2117 __func__, port->targ_port, iid, wwpn, name, 2118 (uintmax_t)port->wwpn_iid[iid].wwpn, 2119 port->wwpn_iid[iid].name); 2120 2121 /* 2122 * XXX KDM clear have_ca and ua_pending on each LUN for 2123 * this initiator. 2124 */ 2125 } 2126take: 2127 free(port->wwpn_iid[iid].name, M_CTL); 2128 port->wwpn_iid[iid].name = name; 2129 port->wwpn_iid[iid].wwpn = wwpn; 2130 port->wwpn_iid[iid].in_use++; 2131 mtx_unlock(&softc->ctl_lock); 2132 ctl_isc_announce_iid(port, iid); 2133 2134 return (iid); 2135} 2136 2137static int 2138ctl_create_iid(struct ctl_port *port, int iid, uint8_t *buf) 2139{ 2140 int len; 2141 2142 switch (port->port_type) { 2143 case CTL_PORT_FC: 2144 { 2145 struct scsi_transportid_fcp *id = 2146 (struct scsi_transportid_fcp *)buf; 2147 if (port->wwpn_iid[iid].wwpn == 0) 2148 return (0); 2149 memset(id, 0, sizeof(*id)); 2150 id->format_protocol = SCSI_PROTO_FC; 2151 scsi_u64to8b(port->wwpn_iid[iid].wwpn, id->n_port_name); 2152 return (sizeof(*id)); 2153 } 2154 case CTL_PORT_ISCSI: 2155 { 2156 struct scsi_transportid_iscsi_port *id = 2157 (struct scsi_transportid_iscsi_port *)buf; 2158 if (port->wwpn_iid[iid].name == NULL) 2159 return (0); 2160 memset(id, 0, 256); 2161 id->format_protocol = SCSI_TRN_ISCSI_FORMAT_PORT | 2162 SCSI_PROTO_ISCSI; 2163 len = strlcpy(id->iscsi_name, port->wwpn_iid[iid].name, 252) + 1; 2164 len = roundup2(min(len, 252), 4); 2165 scsi_ulto2b(len, id->additional_length); 2166 return (sizeof(*id) + len); 2167 } 2168 case CTL_PORT_SAS: 2169 { 2170 struct scsi_transportid_sas *id = 2171 (struct scsi_transportid_sas *)buf; 2172 if (port->wwpn_iid[iid].wwpn == 0) 2173 return (0); 2174 memset(id, 0, sizeof(*id)); 2175 id->format_protocol = SCSI_PROTO_SAS; 2176 scsi_u64to8b(port->wwpn_iid[iid].wwpn, id->sas_address); 2177 return (sizeof(*id)); 2178 } 2179 default: 2180 { 2181 struct scsi_transportid_spi *id = 2182 (struct scsi_transportid_spi *)buf; 2183 memset(id, 0, sizeof(*id)); 2184 id->format_protocol = SCSI_PROTO_SPI; 2185 scsi_ulto2b(iid, id->scsi_addr); 2186 scsi_ulto2b(port->targ_port, id->rel_trgt_port_id); 2187 return (sizeof(*id)); 2188 } 2189 } 2190} 2191 2192/* 2193 * Serialize a command that went down the "wrong" side, and so was sent to 2194 * this controller for execution. The logic is a little different than the 2195 * standard case in ctl_scsiio_precheck(). Errors in this case need to get 2196 * sent back to the other side, but in the success case, we execute the 2197 * command on this side (XFER mode) or tell the other side to execute it 2198 * (SER_ONLY mode). 2199 */ 2200static void 2201ctl_serialize_other_sc_cmd(struct ctl_scsiio *ctsio) 2202{ 2203 struct ctl_softc *softc = control_softc; 2204 union ctl_ha_msg msg_info; 2205 struct ctl_port *port; 2206 struct ctl_lun *lun; 2207 const struct ctl_cmd_entry *entry; 2208 uint32_t targ_lun; 2209 2210 targ_lun = ctsio->io_hdr.nexus.targ_mapped_lun; 2211 mtx_lock(&softc->ctl_lock); 2212 2213 /* Make sure that we know about this port. */ 2214 port = ctl_io_port(&ctsio->io_hdr); 2215 if (port == NULL || (port->status & CTL_PORT_STATUS_ONLINE) == 0) { 2216 ctl_set_internal_failure(ctsio, /*sks_valid*/ 0, 2217 /*retry_count*/ 1); 2218 goto badjuju; 2219 } 2220 2221 /* Make sure that we know about this LUN. */ 2222 if (targ_lun >= CTL_MAX_LUNS || 2223 (lun = softc->ctl_luns[targ_lun]) == NULL) { 2224 mtx_unlock(&softc->ctl_lock); 2225 2226 /* 2227 * The other node would not send this request to us unless 2228 * received announce that we are primary node for this LUN. 2229 * If this LUN does not exist now, it is probably result of 2230 * a race, so respond to initiator in the most opaque way. 2231 */ 2232 ctl_set_busy(ctsio); 2233 goto badjuju; 2234 } 2235 mtx_lock(&lun->lun_lock); 2236 mtx_unlock(&softc->ctl_lock); 2237 2238 /* 2239 * If the LUN is invalid, pretend that it doesn't exist. 2240 * It will go away as soon as all pending I/Os completed. 2241 */ 2242 if (lun->flags & CTL_LUN_DISABLED) { 2243 mtx_unlock(&lun->lun_lock); 2244 ctl_set_busy(ctsio); 2245 goto badjuju; 2246 } 2247 2248 entry = ctl_get_cmd_entry(ctsio, NULL); 2249 if (ctl_scsiio_lun_check(lun, entry, ctsio) != 0) { 2250 mtx_unlock(&lun->lun_lock); 2251 goto badjuju; 2252 } 2253 2254 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr = lun; 2255 ctsio->io_hdr.ctl_private[CTL_PRIV_BACKEND_LUN].ptr = lun->be_lun; 2256 2257 /* 2258 * Every I/O goes into the OOA queue for a 2259 * particular LUN, and stays there until completion. 2260 */ 2261#ifdef CTL_TIME_IO 2262 if (TAILQ_EMPTY(&lun->ooa_queue)) 2263 lun->idle_time += getsbinuptime() - lun->last_busy; 2264#endif 2265 TAILQ_INSERT_TAIL(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 2266 2267 switch (ctl_check_ooa(lun, (union ctl_io *)ctsio, 2268 (union ctl_io *)TAILQ_PREV(&ctsio->io_hdr, ctl_ooaq, 2269 ooa_links))) { 2270 case CTL_ACTION_BLOCK: 2271 ctsio->io_hdr.flags |= CTL_FLAG_BLOCKED; 2272 TAILQ_INSERT_TAIL(&lun->blocked_queue, &ctsio->io_hdr, 2273 blocked_links); 2274 mtx_unlock(&lun->lun_lock); 2275 break; 2276 case CTL_ACTION_PASS: 2277 case CTL_ACTION_SKIP: 2278 if (softc->ha_mode == CTL_HA_MODE_XFER) { 2279 ctsio->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 2280 ctl_enqueue_rtr((union ctl_io *)ctsio); 2281 mtx_unlock(&lun->lun_lock); 2282 } else { 2283 ctsio->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 2284 mtx_unlock(&lun->lun_lock); 2285 2286 /* send msg back to other side */ 2287 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 2288 msg_info.hdr.serializing_sc = (union ctl_io *)ctsio; 2289 msg_info.hdr.msg_type = CTL_MSG_R2R; 2290 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 2291 sizeof(msg_info.hdr), M_WAITOK); 2292 } 2293 break; 2294 case CTL_ACTION_OVERLAP: 2295 TAILQ_REMOVE(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 2296 mtx_unlock(&lun->lun_lock); 2297 ctl_set_overlapped_cmd(ctsio); 2298 goto badjuju; 2299 case CTL_ACTION_OVERLAP_TAG: 2300 TAILQ_REMOVE(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 2301 mtx_unlock(&lun->lun_lock); 2302 ctl_set_overlapped_tag(ctsio, ctsio->tag_num); 2303 goto badjuju; 2304 case CTL_ACTION_ERROR: 2305 default: 2306 TAILQ_REMOVE(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 2307 mtx_unlock(&lun->lun_lock); 2308 2309 ctl_set_internal_failure(ctsio, /*sks_valid*/ 0, 2310 /*retry_count*/ 0); 2311badjuju: 2312 ctl_copy_sense_data_back((union ctl_io *)ctsio, &msg_info); 2313 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 2314 msg_info.hdr.serializing_sc = NULL; 2315 msg_info.hdr.msg_type = CTL_MSG_BAD_JUJU; 2316 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 2317 sizeof(msg_info.scsi), M_WAITOK); 2318 ctl_free_io((union ctl_io *)ctsio); 2319 break; 2320 } 2321} 2322 2323/* 2324 * Returns 0 for success, errno for failure. 2325 */ 2326static void 2327ctl_ioctl_fill_ooa(struct ctl_lun *lun, uint32_t *cur_fill_num, 2328 struct ctl_ooa *ooa_hdr, struct ctl_ooa_entry *kern_entries) 2329{ 2330 union ctl_io *io; 2331 2332 mtx_lock(&lun->lun_lock); 2333 for (io = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); (io != NULL); 2334 (*cur_fill_num)++, io = (union ctl_io *)TAILQ_NEXT(&io->io_hdr, 2335 ooa_links)) { 2336 struct ctl_ooa_entry *entry; 2337 2338 /* 2339 * If we've got more than we can fit, just count the 2340 * remaining entries. 2341 */ 2342 if (*cur_fill_num >= ooa_hdr->alloc_num) 2343 continue; 2344 2345 entry = &kern_entries[*cur_fill_num]; 2346 2347 entry->tag_num = io->scsiio.tag_num; 2348 entry->lun_num = lun->lun; 2349#ifdef CTL_TIME_IO 2350 entry->start_bt = io->io_hdr.start_bt; 2351#endif 2352 bcopy(io->scsiio.cdb, entry->cdb, io->scsiio.cdb_len); 2353 entry->cdb_len = io->scsiio.cdb_len; 2354 if (io->io_hdr.flags & CTL_FLAG_BLOCKED) 2355 entry->cmd_flags |= CTL_OOACMD_FLAG_BLOCKED; 2356 2357 if (io->io_hdr.flags & CTL_FLAG_DMA_INPROG) 2358 entry->cmd_flags |= CTL_OOACMD_FLAG_DMA; 2359 2360 if (io->io_hdr.flags & CTL_FLAG_ABORT) 2361 entry->cmd_flags |= CTL_OOACMD_FLAG_ABORT; 2362 2363 if (io->io_hdr.flags & CTL_FLAG_IS_WAS_ON_RTR) 2364 entry->cmd_flags |= CTL_OOACMD_FLAG_RTR; 2365 2366 if (io->io_hdr.flags & CTL_FLAG_DMA_QUEUED) 2367 entry->cmd_flags |= CTL_OOACMD_FLAG_DMA_QUEUED; 2368 } 2369 mtx_unlock(&lun->lun_lock); 2370} 2371 2372static void * 2373ctl_copyin_alloc(void *user_addr, int len, char *error_str, 2374 size_t error_str_len) 2375{ 2376 void *kptr; 2377 2378 kptr = malloc(len, M_CTL, M_WAITOK | M_ZERO); 2379 2380 if (copyin(user_addr, kptr, len) != 0) { 2381 snprintf(error_str, error_str_len, "Error copying %d bytes " 2382 "from user address %p to kernel address %p", len, 2383 user_addr, kptr); 2384 free(kptr, M_CTL); 2385 return (NULL); 2386 } 2387 2388 return (kptr); 2389} 2390 2391static void 2392ctl_free_args(int num_args, struct ctl_be_arg *args) 2393{ 2394 int i; 2395 2396 if (args == NULL) 2397 return; 2398 2399 for (i = 0; i < num_args; i++) { 2400 free(args[i].kname, M_CTL); 2401 free(args[i].kvalue, M_CTL); 2402 } 2403 2404 free(args, M_CTL); 2405} 2406 2407static struct ctl_be_arg * 2408ctl_copyin_args(int num_args, struct ctl_be_arg *uargs, 2409 char *error_str, size_t error_str_len) 2410{ 2411 struct ctl_be_arg *args; 2412 int i; 2413 2414 args = ctl_copyin_alloc(uargs, num_args * sizeof(*args), 2415 error_str, error_str_len); 2416 2417 if (args == NULL) 2418 goto bailout; 2419 2420 for (i = 0; i < num_args; i++) { 2421 args[i].kname = NULL; 2422 args[i].kvalue = NULL; 2423 } 2424 2425 for (i = 0; i < num_args; i++) { 2426 uint8_t *tmpptr; 2427 2428 args[i].kname = ctl_copyin_alloc(args[i].name, 2429 args[i].namelen, error_str, error_str_len); 2430 if (args[i].kname == NULL) 2431 goto bailout; 2432 2433 if (args[i].kname[args[i].namelen - 1] != '\0') { 2434 snprintf(error_str, error_str_len, "Argument %d " 2435 "name is not NUL-terminated", i); 2436 goto bailout; 2437 } 2438 2439 if (args[i].flags & CTL_BEARG_RD) { 2440 tmpptr = ctl_copyin_alloc(args[i].value, 2441 args[i].vallen, error_str, error_str_len); 2442 if (tmpptr == NULL) 2443 goto bailout; 2444 if ((args[i].flags & CTL_BEARG_ASCII) 2445 && (tmpptr[args[i].vallen - 1] != '\0')) { 2446 snprintf(error_str, error_str_len, "Argument " 2447 "%d value is not NUL-terminated", i); 2448 free(tmpptr, M_CTL); 2449 goto bailout; 2450 } 2451 args[i].kvalue = tmpptr; 2452 } else { 2453 args[i].kvalue = malloc(args[i].vallen, 2454 M_CTL, M_WAITOK | M_ZERO); 2455 } 2456 } 2457 2458 return (args); 2459bailout: 2460 2461 ctl_free_args(num_args, args); 2462 2463 return (NULL); 2464} 2465 2466static void 2467ctl_copyout_args(int num_args, struct ctl_be_arg *args) 2468{ 2469 int i; 2470 2471 for (i = 0; i < num_args; i++) { 2472 if (args[i].flags & CTL_BEARG_WR) 2473 copyout(args[i].kvalue, args[i].value, args[i].vallen); 2474 } 2475} 2476 2477/* 2478 * Escape characters that are illegal or not recommended in XML. 2479 */ 2480int 2481ctl_sbuf_printf_esc(struct sbuf *sb, char *str, int size) 2482{ 2483 char *end = str + size; 2484 int retval; 2485 2486 retval = 0; 2487 2488 for (; *str && str < end; str++) { 2489 switch (*str) { 2490 case '&': 2491 retval = sbuf_printf(sb, "&"); 2492 break; 2493 case '>': 2494 retval = sbuf_printf(sb, ">"); 2495 break; 2496 case '<': 2497 retval = sbuf_printf(sb, "<"); 2498 break; 2499 default: 2500 retval = sbuf_putc(sb, *str); 2501 break; 2502 } 2503 2504 if (retval != 0) 2505 break; 2506 2507 } 2508 2509 return (retval); 2510} 2511 2512static void 2513ctl_id_sbuf(struct ctl_devid *id, struct sbuf *sb) 2514{ 2515 struct scsi_vpd_id_descriptor *desc; 2516 int i; 2517 2518 if (id == NULL || id->len < 4) 2519 return; 2520 desc = (struct scsi_vpd_id_descriptor *)id->data; 2521 switch (desc->id_type & SVPD_ID_TYPE_MASK) { 2522 case SVPD_ID_TYPE_T10: 2523 sbuf_printf(sb, "t10."); 2524 break; 2525 case SVPD_ID_TYPE_EUI64: 2526 sbuf_printf(sb, "eui."); 2527 break; 2528 case SVPD_ID_TYPE_NAA: 2529 sbuf_printf(sb, "naa."); 2530 break; 2531 case SVPD_ID_TYPE_SCSI_NAME: 2532 break; 2533 } 2534 switch (desc->proto_codeset & SVPD_ID_CODESET_MASK) { 2535 case SVPD_ID_CODESET_BINARY: 2536 for (i = 0; i < desc->length; i++) 2537 sbuf_printf(sb, "%02x", desc->identifier[i]); 2538 break; 2539 case SVPD_ID_CODESET_ASCII: 2540 sbuf_printf(sb, "%.*s", (int)desc->length, 2541 (char *)desc->identifier); 2542 break; 2543 case SVPD_ID_CODESET_UTF8: 2544 sbuf_printf(sb, "%s", (char *)desc->identifier); 2545 break; 2546 } 2547} 2548 2549static int 2550ctl_ioctl(struct cdev *dev, u_long cmd, caddr_t addr, int flag, 2551 struct thread *td) 2552{ 2553 struct ctl_softc *softc = dev->si_drv1; 2554 struct ctl_lun *lun; 2555 int retval; 2556 2557 retval = 0; 2558 2559 switch (cmd) { 2560 case CTL_IO: 2561 retval = ctl_ioctl_io(dev, cmd, addr, flag, td); 2562 break; 2563 case CTL_ENABLE_PORT: 2564 case CTL_DISABLE_PORT: 2565 case CTL_SET_PORT_WWNS: { 2566 struct ctl_port *port; 2567 struct ctl_port_entry *entry; 2568 2569 entry = (struct ctl_port_entry *)addr; 2570 2571 mtx_lock(&softc->ctl_lock); 2572 STAILQ_FOREACH(port, &softc->port_list, links) { 2573 int action, done; 2574 2575 if (port->targ_port < softc->port_min || 2576 port->targ_port >= softc->port_max) 2577 continue; 2578 2579 action = 0; 2580 done = 0; 2581 if ((entry->port_type == CTL_PORT_NONE) 2582 && (entry->targ_port == port->targ_port)) { 2583 /* 2584 * If the user only wants to enable or 2585 * disable or set WWNs on a specific port, 2586 * do the operation and we're done. 2587 */ 2588 action = 1; 2589 done = 1; 2590 } else if (entry->port_type & port->port_type) { 2591 /* 2592 * Compare the user's type mask with the 2593 * particular frontend type to see if we 2594 * have a match. 2595 */ 2596 action = 1; 2597 done = 0; 2598 2599 /* 2600 * Make sure the user isn't trying to set 2601 * WWNs on multiple ports at the same time. 2602 */ 2603 if (cmd == CTL_SET_PORT_WWNS) { 2604 printf("%s: Can't set WWNs on " 2605 "multiple ports\n", __func__); 2606 retval = EINVAL; 2607 break; 2608 } 2609 } 2610 if (action == 0) 2611 continue; 2612 2613 /* 2614 * XXX KDM we have to drop the lock here, because 2615 * the online/offline operations can potentially 2616 * block. We need to reference count the frontends 2617 * so they can't go away, 2618 */ 2619 if (cmd == CTL_ENABLE_PORT) { 2620 mtx_unlock(&softc->ctl_lock); 2621 ctl_port_online(port); 2622 mtx_lock(&softc->ctl_lock); 2623 } else if (cmd == CTL_DISABLE_PORT) { 2624 mtx_unlock(&softc->ctl_lock); 2625 ctl_port_offline(port); 2626 mtx_lock(&softc->ctl_lock); 2627 } else if (cmd == CTL_SET_PORT_WWNS) { 2628 ctl_port_set_wwns(port, 2629 (entry->flags & CTL_PORT_WWNN_VALID) ? 2630 1 : 0, entry->wwnn, 2631 (entry->flags & CTL_PORT_WWPN_VALID) ? 2632 1 : 0, entry->wwpn); 2633 } 2634 if (done != 0) 2635 break; 2636 } 2637 mtx_unlock(&softc->ctl_lock); 2638 break; 2639 } 2640 case CTL_GET_OOA: { 2641 struct ctl_ooa *ooa_hdr; 2642 struct ctl_ooa_entry *entries; 2643 uint32_t cur_fill_num; 2644 2645 ooa_hdr = (struct ctl_ooa *)addr; 2646 2647 if ((ooa_hdr->alloc_len == 0) 2648 || (ooa_hdr->alloc_num == 0)) { 2649 printf("%s: CTL_GET_OOA: alloc len %u and alloc num %u " 2650 "must be non-zero\n", __func__, 2651 ooa_hdr->alloc_len, ooa_hdr->alloc_num); 2652 retval = EINVAL; 2653 break; 2654 } 2655 2656 if (ooa_hdr->alloc_len != (ooa_hdr->alloc_num * 2657 sizeof(struct ctl_ooa_entry))) { 2658 printf("%s: CTL_GET_OOA: alloc len %u must be alloc " 2659 "num %d * sizeof(struct ctl_ooa_entry) %zd\n", 2660 __func__, ooa_hdr->alloc_len, 2661 ooa_hdr->alloc_num,sizeof(struct ctl_ooa_entry)); 2662 retval = EINVAL; 2663 break; 2664 } 2665 2666 entries = malloc(ooa_hdr->alloc_len, M_CTL, M_WAITOK | M_ZERO); 2667 if (entries == NULL) { 2668 printf("%s: could not allocate %d bytes for OOA " 2669 "dump\n", __func__, ooa_hdr->alloc_len); 2670 retval = ENOMEM; 2671 break; 2672 } 2673 2674 mtx_lock(&softc->ctl_lock); 2675 if ((ooa_hdr->flags & CTL_OOA_FLAG_ALL_LUNS) == 0 && 2676 (ooa_hdr->lun_num >= CTL_MAX_LUNS || 2677 softc->ctl_luns[ooa_hdr->lun_num] == NULL)) { 2678 mtx_unlock(&softc->ctl_lock); 2679 free(entries, M_CTL); 2680 printf("%s: CTL_GET_OOA: invalid LUN %ju\n", 2681 __func__, (uintmax_t)ooa_hdr->lun_num); 2682 retval = EINVAL; 2683 break; 2684 } 2685 2686 cur_fill_num = 0; 2687 2688 if (ooa_hdr->flags & CTL_OOA_FLAG_ALL_LUNS) { 2689 STAILQ_FOREACH(lun, &softc->lun_list, links) { 2690 ctl_ioctl_fill_ooa(lun, &cur_fill_num, 2691 ooa_hdr, entries); 2692 } 2693 } else { 2694 lun = softc->ctl_luns[ooa_hdr->lun_num]; 2695 ctl_ioctl_fill_ooa(lun, &cur_fill_num, ooa_hdr, 2696 entries); 2697 } 2698 mtx_unlock(&softc->ctl_lock); 2699 2700 ooa_hdr->fill_num = min(cur_fill_num, ooa_hdr->alloc_num); 2701 ooa_hdr->fill_len = ooa_hdr->fill_num * 2702 sizeof(struct ctl_ooa_entry); 2703 retval = copyout(entries, ooa_hdr->entries, ooa_hdr->fill_len); 2704 if (retval != 0) { 2705 printf("%s: error copying out %d bytes for OOA dump\n", 2706 __func__, ooa_hdr->fill_len); 2707 } 2708 2709 getbinuptime(&ooa_hdr->cur_bt); 2710 2711 if (cur_fill_num > ooa_hdr->alloc_num) { 2712 ooa_hdr->dropped_num = cur_fill_num -ooa_hdr->alloc_num; 2713 ooa_hdr->status = CTL_OOA_NEED_MORE_SPACE; 2714 } else { 2715 ooa_hdr->dropped_num = 0; 2716 ooa_hdr->status = CTL_OOA_OK; 2717 } 2718 2719 free(entries, M_CTL); 2720 break; 2721 } 2722 case CTL_DELAY_IO: { 2723 struct ctl_io_delay_info *delay_info; 2724 2725 delay_info = (struct ctl_io_delay_info *)addr; 2726 2727#ifdef CTL_IO_DELAY 2728 mtx_lock(&softc->ctl_lock); 2729 if (delay_info->lun_id >= CTL_MAX_LUNS || 2730 (lun = softc->ctl_luns[delay_info->lun_id]) == NULL) { 2731 mtx_unlock(&softc->ctl_lock); 2732 delay_info->status = CTL_DELAY_STATUS_INVALID_LUN; 2733 break; 2734 } 2735 mtx_lock(&lun->lun_lock); 2736 mtx_unlock(&softc->ctl_lock); 2737 delay_info->status = CTL_DELAY_STATUS_OK; 2738 switch (delay_info->delay_type) { 2739 case CTL_DELAY_TYPE_CONT: 2740 case CTL_DELAY_TYPE_ONESHOT: 2741 break; 2742 default: 2743 delay_info->status = CTL_DELAY_STATUS_INVALID_TYPE; 2744 break; 2745 } 2746 switch (delay_info->delay_loc) { 2747 case CTL_DELAY_LOC_DATAMOVE: 2748 lun->delay_info.datamove_type = delay_info->delay_type; 2749 lun->delay_info.datamove_delay = delay_info->delay_secs; 2750 break; 2751 case CTL_DELAY_LOC_DONE: 2752 lun->delay_info.done_type = delay_info->delay_type; 2753 lun->delay_info.done_delay = delay_info->delay_secs; 2754 break; 2755 default: 2756 delay_info->status = CTL_DELAY_STATUS_INVALID_LOC; 2757 break; 2758 } 2759 mtx_unlock(&lun->lun_lock); 2760#else 2761 delay_info->status = CTL_DELAY_STATUS_NOT_IMPLEMENTED; 2762#endif /* CTL_IO_DELAY */ 2763 break; 2764 } 2765 case CTL_GETSTATS: { 2766 struct ctl_stats *stats; 2767 int i; 2768 2769 stats = (struct ctl_stats *)addr; 2770 2771 if ((sizeof(struct ctl_lun_io_stats) * softc->num_luns) > 2772 stats->alloc_len) { 2773 stats->status = CTL_SS_NEED_MORE_SPACE; 2774 stats->num_luns = softc->num_luns; 2775 break; 2776 } 2777 /* 2778 * XXX KDM no locking here. If the LUN list changes, 2779 * things can blow up. 2780 */ 2781 i = 0; 2782 STAILQ_FOREACH(lun, &softc->lun_list, links) { 2783 retval = copyout(&lun->stats, &stats->lun_stats[i++], 2784 sizeof(lun->stats)); 2785 if (retval != 0) 2786 break; 2787 } 2788 stats->num_luns = softc->num_luns; 2789 stats->fill_len = sizeof(struct ctl_lun_io_stats) * 2790 softc->num_luns; 2791 stats->status = CTL_SS_OK; 2792#ifdef CTL_TIME_IO 2793 stats->flags = CTL_STATS_FLAG_TIME_VALID; 2794#else 2795 stats->flags = CTL_STATS_FLAG_NONE; 2796#endif 2797 getnanouptime(&stats->timestamp); 2798 break; 2799 } 2800 case CTL_ERROR_INJECT: { 2801 struct ctl_error_desc *err_desc, *new_err_desc; 2802 2803 err_desc = (struct ctl_error_desc *)addr; 2804 2805 new_err_desc = malloc(sizeof(*new_err_desc), M_CTL, 2806 M_WAITOK | M_ZERO); 2807 bcopy(err_desc, new_err_desc, sizeof(*new_err_desc)); 2808 2809 mtx_lock(&softc->ctl_lock); 2810 if (err_desc->lun_id >= CTL_MAX_LUNS || 2811 (lun = softc->ctl_luns[err_desc->lun_id]) == NULL) { 2812 mtx_unlock(&softc->ctl_lock); 2813 free(new_err_desc, M_CTL); 2814 printf("%s: CTL_ERROR_INJECT: invalid LUN %ju\n", 2815 __func__, (uintmax_t)err_desc->lun_id); 2816 retval = EINVAL; 2817 break; 2818 } 2819 mtx_lock(&lun->lun_lock); 2820 mtx_unlock(&softc->ctl_lock); 2821 2822 /* 2823 * We could do some checking here to verify the validity 2824 * of the request, but given the complexity of error 2825 * injection requests, the checking logic would be fairly 2826 * complex. 2827 * 2828 * For now, if the request is invalid, it just won't get 2829 * executed and might get deleted. 2830 */ 2831 STAILQ_INSERT_TAIL(&lun->error_list, new_err_desc, links); 2832 2833 /* 2834 * XXX KDM check to make sure the serial number is unique, 2835 * in case we somehow manage to wrap. That shouldn't 2836 * happen for a very long time, but it's the right thing to 2837 * do. 2838 */ 2839 new_err_desc->serial = lun->error_serial; 2840 err_desc->serial = lun->error_serial; 2841 lun->error_serial++; 2842 2843 mtx_unlock(&lun->lun_lock); 2844 break; 2845 } 2846 case CTL_ERROR_INJECT_DELETE: { 2847 struct ctl_error_desc *delete_desc, *desc, *desc2; 2848 int delete_done; 2849 2850 delete_desc = (struct ctl_error_desc *)addr; 2851 delete_done = 0; 2852 2853 mtx_lock(&softc->ctl_lock); 2854 if (delete_desc->lun_id >= CTL_MAX_LUNS || 2855 (lun = softc->ctl_luns[delete_desc->lun_id]) == NULL) { 2856 mtx_unlock(&softc->ctl_lock); 2857 printf("%s: CTL_ERROR_INJECT_DELETE: invalid LUN %ju\n", 2858 __func__, (uintmax_t)delete_desc->lun_id); 2859 retval = EINVAL; 2860 break; 2861 } 2862 mtx_lock(&lun->lun_lock); 2863 mtx_unlock(&softc->ctl_lock); 2864 STAILQ_FOREACH_SAFE(desc, &lun->error_list, links, desc2) { 2865 if (desc->serial != delete_desc->serial) 2866 continue; 2867 2868 STAILQ_REMOVE(&lun->error_list, desc, ctl_error_desc, 2869 links); 2870 free(desc, M_CTL); 2871 delete_done = 1; 2872 } 2873 mtx_unlock(&lun->lun_lock); 2874 if (delete_done == 0) { 2875 printf("%s: CTL_ERROR_INJECT_DELETE: can't find " 2876 "error serial %ju on LUN %u\n", __func__, 2877 delete_desc->serial, delete_desc->lun_id); 2878 retval = EINVAL; 2879 break; 2880 } 2881 break; 2882 } 2883 case CTL_DUMP_STRUCTS: { 2884 int j, k; 2885 struct ctl_port *port; 2886 struct ctl_frontend *fe; 2887 2888 mtx_lock(&softc->ctl_lock); 2889 printf("CTL Persistent Reservation information start:\n"); 2890 STAILQ_FOREACH(lun, &softc->lun_list, links) { 2891 mtx_lock(&lun->lun_lock); 2892 if ((lun->flags & CTL_LUN_DISABLED) != 0) { 2893 mtx_unlock(&lun->lun_lock); 2894 continue; 2895 } 2896 2897 for (j = 0; j < CTL_MAX_PORTS; j++) { 2898 if (lun->pr_keys[j] == NULL) 2899 continue; 2900 for (k = 0; k < CTL_MAX_INIT_PER_PORT; k++){ 2901 if (lun->pr_keys[j][k] == 0) 2902 continue; 2903 printf(" LUN %ju port %d iid %d key " 2904 "%#jx\n", lun->lun, j, k, 2905 (uintmax_t)lun->pr_keys[j][k]); 2906 } 2907 } 2908 mtx_unlock(&lun->lun_lock); 2909 } 2910 printf("CTL Persistent Reservation information end\n"); 2911 printf("CTL Ports:\n"); 2912 STAILQ_FOREACH(port, &softc->port_list, links) { 2913 printf(" Port %d '%s' Frontend '%s' Type %u pp %d vp %d WWNN " 2914 "%#jx WWPN %#jx\n", port->targ_port, port->port_name, 2915 port->frontend->name, port->port_type, 2916 port->physical_port, port->virtual_port, 2917 (uintmax_t)port->wwnn, (uintmax_t)port->wwpn); 2918 for (j = 0; j < CTL_MAX_INIT_PER_PORT; j++) { 2919 if (port->wwpn_iid[j].in_use == 0 && 2920 port->wwpn_iid[j].wwpn == 0 && 2921 port->wwpn_iid[j].name == NULL) 2922 continue; 2923 2924 printf(" iid %u use %d WWPN %#jx '%s'\n", 2925 j, port->wwpn_iid[j].in_use, 2926 (uintmax_t)port->wwpn_iid[j].wwpn, 2927 port->wwpn_iid[j].name); 2928 } 2929 } 2930 printf("CTL Port information end\n"); 2931 mtx_unlock(&softc->ctl_lock); 2932 /* 2933 * XXX KDM calling this without a lock. We'd likely want 2934 * to drop the lock before calling the frontend's dump 2935 * routine anyway. 2936 */ 2937 printf("CTL Frontends:\n"); 2938 STAILQ_FOREACH(fe, &softc->fe_list, links) { 2939 printf(" Frontend '%s'\n", fe->name); 2940 if (fe->fe_dump != NULL) 2941 fe->fe_dump(); 2942 } 2943 printf("CTL Frontend information end\n"); 2944 break; 2945 } 2946 case CTL_LUN_REQ: { 2947 struct ctl_lun_req *lun_req; 2948 struct ctl_backend_driver *backend; 2949 2950 lun_req = (struct ctl_lun_req *)addr; 2951 2952 backend = ctl_backend_find(lun_req->backend); 2953 if (backend == NULL) { 2954 lun_req->status = CTL_LUN_ERROR; 2955 snprintf(lun_req->error_str, 2956 sizeof(lun_req->error_str), 2957 "Backend \"%s\" not found.", 2958 lun_req->backend); 2959 break; 2960 } 2961 if (lun_req->num_be_args > 0) { 2962 lun_req->kern_be_args = ctl_copyin_args( 2963 lun_req->num_be_args, 2964 lun_req->be_args, 2965 lun_req->error_str, 2966 sizeof(lun_req->error_str)); 2967 if (lun_req->kern_be_args == NULL) { 2968 lun_req->status = CTL_LUN_ERROR; 2969 break; 2970 } 2971 } 2972 2973 retval = backend->ioctl(dev, cmd, addr, flag, td); 2974 2975 if (lun_req->num_be_args > 0) { 2976 ctl_copyout_args(lun_req->num_be_args, 2977 lun_req->kern_be_args); 2978 ctl_free_args(lun_req->num_be_args, 2979 lun_req->kern_be_args); 2980 } 2981 break; 2982 } 2983 case CTL_LUN_LIST: { 2984 struct sbuf *sb; 2985 struct ctl_lun_list *list; 2986 struct ctl_option *opt; 2987 2988 list = (struct ctl_lun_list *)addr; 2989 2990 /* 2991 * Allocate a fixed length sbuf here, based on the length 2992 * of the user's buffer. We could allocate an auto-extending 2993 * buffer, and then tell the user how much larger our 2994 * amount of data is than his buffer, but that presents 2995 * some problems: 2996 * 2997 * 1. The sbuf(9) routines use a blocking malloc, and so 2998 * we can't hold a lock while calling them with an 2999 * auto-extending buffer. 3000 * 3001 * 2. There is not currently a LUN reference counting 3002 * mechanism, outside of outstanding transactions on 3003 * the LUN's OOA queue. So a LUN could go away on us 3004 * while we're getting the LUN number, backend-specific 3005 * information, etc. Thus, given the way things 3006 * currently work, we need to hold the CTL lock while 3007 * grabbing LUN information. 3008 * 3009 * So, from the user's standpoint, the best thing to do is 3010 * allocate what he thinks is a reasonable buffer length, 3011 * and then if he gets a CTL_LUN_LIST_NEED_MORE_SPACE error, 3012 * double the buffer length and try again. (And repeat 3013 * that until he succeeds.) 3014 */ 3015 sb = sbuf_new(NULL, NULL, list->alloc_len, SBUF_FIXEDLEN); 3016 if (sb == NULL) { 3017 list->status = CTL_LUN_LIST_ERROR; 3018 snprintf(list->error_str, sizeof(list->error_str), 3019 "Unable to allocate %d bytes for LUN list", 3020 list->alloc_len); 3021 break; 3022 } 3023 3024 sbuf_printf(sb, "<ctllunlist>\n"); 3025 3026 mtx_lock(&softc->ctl_lock); 3027 STAILQ_FOREACH(lun, &softc->lun_list, links) { 3028 mtx_lock(&lun->lun_lock); 3029 retval = sbuf_printf(sb, "<lun id=\"%ju\">\n", 3030 (uintmax_t)lun->lun); 3031 3032 /* 3033 * Bail out as soon as we see that we've overfilled 3034 * the buffer. 3035 */ 3036 if (retval != 0) 3037 break; 3038 3039 retval = sbuf_printf(sb, "\t<backend_type>%s" 3040 "</backend_type>\n", 3041 (lun->backend == NULL) ? "none" : 3042 lun->backend->name); 3043 3044 if (retval != 0) 3045 break; 3046 3047 retval = sbuf_printf(sb, "\t<lun_type>%d</lun_type>\n", 3048 lun->be_lun->lun_type); 3049 3050 if (retval != 0) 3051 break; 3052 3053 if (lun->backend == NULL) { 3054 retval = sbuf_printf(sb, "</lun>\n"); 3055 if (retval != 0) 3056 break; 3057 continue; 3058 } 3059 3060 retval = sbuf_printf(sb, "\t<size>%ju</size>\n", 3061 (lun->be_lun->maxlba > 0) ? 3062 lun->be_lun->maxlba + 1 : 0); 3063 3064 if (retval != 0) 3065 break; 3066 3067 retval = sbuf_printf(sb, "\t<blocksize>%u</blocksize>\n", 3068 lun->be_lun->blocksize); 3069 3070 if (retval != 0) 3071 break; 3072 3073 retval = sbuf_printf(sb, "\t<serial_number>"); 3074 3075 if (retval != 0) 3076 break; 3077 3078 retval = ctl_sbuf_printf_esc(sb, 3079 lun->be_lun->serial_num, 3080 sizeof(lun->be_lun->serial_num)); 3081 3082 if (retval != 0) 3083 break; 3084 3085 retval = sbuf_printf(sb, "</serial_number>\n"); 3086 3087 if (retval != 0) 3088 break; 3089 3090 retval = sbuf_printf(sb, "\t<device_id>"); 3091 3092 if (retval != 0) 3093 break; 3094 3095 retval = ctl_sbuf_printf_esc(sb, 3096 lun->be_lun->device_id, 3097 sizeof(lun->be_lun->device_id)); 3098 3099 if (retval != 0) 3100 break; 3101 3102 retval = sbuf_printf(sb, "</device_id>\n"); 3103 3104 if (retval != 0) 3105 break; 3106 3107 if (lun->backend->lun_info != NULL) { 3108 retval = lun->backend->lun_info(lun->be_lun->be_lun, sb); 3109 if (retval != 0) 3110 break; 3111 } 3112 STAILQ_FOREACH(opt, &lun->be_lun->options, links) { 3113 retval = sbuf_printf(sb, "\t<%s>%s</%s>\n", 3114 opt->name, opt->value, opt->name); 3115 if (retval != 0) 3116 break; 3117 } 3118 3119 retval = sbuf_printf(sb, "</lun>\n"); 3120 3121 if (retval != 0) 3122 break; 3123 mtx_unlock(&lun->lun_lock); 3124 } 3125 if (lun != NULL) 3126 mtx_unlock(&lun->lun_lock); 3127 mtx_unlock(&softc->ctl_lock); 3128 3129 if ((retval != 0) 3130 || ((retval = sbuf_printf(sb, "</ctllunlist>\n")) != 0)) { 3131 retval = 0; 3132 sbuf_delete(sb); 3133 list->status = CTL_LUN_LIST_NEED_MORE_SPACE; 3134 snprintf(list->error_str, sizeof(list->error_str), 3135 "Out of space, %d bytes is too small", 3136 list->alloc_len); 3137 break; 3138 } 3139 3140 sbuf_finish(sb); 3141 3142 retval = copyout(sbuf_data(sb), list->lun_xml, 3143 sbuf_len(sb) + 1); 3144 3145 list->fill_len = sbuf_len(sb) + 1; 3146 list->status = CTL_LUN_LIST_OK; 3147 sbuf_delete(sb); 3148 break; 3149 } 3150 case CTL_ISCSI: { 3151 struct ctl_iscsi *ci; 3152 struct ctl_frontend *fe; 3153 3154 ci = (struct ctl_iscsi *)addr; 3155 3156 fe = ctl_frontend_find("iscsi"); 3157 if (fe == NULL) { 3158 ci->status = CTL_ISCSI_ERROR; 3159 snprintf(ci->error_str, sizeof(ci->error_str), 3160 "Frontend \"iscsi\" not found."); 3161 break; 3162 } 3163 3164 retval = fe->ioctl(dev, cmd, addr, flag, td); 3165 break; 3166 } 3167 case CTL_PORT_REQ: { 3168 struct ctl_req *req; 3169 struct ctl_frontend *fe; 3170 3171 req = (struct ctl_req *)addr; 3172 3173 fe = ctl_frontend_find(req->driver); 3174 if (fe == NULL) { 3175 req->status = CTL_LUN_ERROR; 3176 snprintf(req->error_str, sizeof(req->error_str), 3177 "Frontend \"%s\" not found.", req->driver); 3178 break; 3179 } 3180 if (req->num_args > 0) { 3181 req->kern_args = ctl_copyin_args(req->num_args, 3182 req->args, req->error_str, sizeof(req->error_str)); 3183 if (req->kern_args == NULL) { 3184 req->status = CTL_LUN_ERROR; 3185 break; 3186 } 3187 } 3188 3189 if (fe->ioctl) 3190 retval = fe->ioctl(dev, cmd, addr, flag, td); 3191 else 3192 retval = ENODEV; 3193 3194 if (req->num_args > 0) { 3195 ctl_copyout_args(req->num_args, req->kern_args); 3196 ctl_free_args(req->num_args, req->kern_args); 3197 } 3198 break; 3199 } 3200 case CTL_PORT_LIST: { 3201 struct sbuf *sb; 3202 struct ctl_port *port; 3203 struct ctl_lun_list *list; 3204 struct ctl_option *opt; 3205 int j; 3206 uint32_t plun; 3207 3208 list = (struct ctl_lun_list *)addr; 3209 3210 sb = sbuf_new(NULL, NULL, list->alloc_len, SBUF_FIXEDLEN); 3211 if (sb == NULL) { 3212 list->status = CTL_LUN_LIST_ERROR; 3213 snprintf(list->error_str, sizeof(list->error_str), 3214 "Unable to allocate %d bytes for LUN list", 3215 list->alloc_len); 3216 break; 3217 } 3218 3219 sbuf_printf(sb, "<ctlportlist>\n"); 3220 3221 mtx_lock(&softc->ctl_lock); 3222 STAILQ_FOREACH(port, &softc->port_list, links) { 3223 retval = sbuf_printf(sb, "<targ_port id=\"%ju\">\n", 3224 (uintmax_t)port->targ_port); 3225 3226 /* 3227 * Bail out as soon as we see that we've overfilled 3228 * the buffer. 3229 */ 3230 if (retval != 0) 3231 break; 3232 3233 retval = sbuf_printf(sb, "\t<frontend_type>%s" 3234 "</frontend_type>\n", port->frontend->name); 3235 if (retval != 0) 3236 break; 3237 3238 retval = sbuf_printf(sb, "\t<port_type>%d</port_type>\n", 3239 port->port_type); 3240 if (retval != 0) 3241 break; 3242 3243 retval = sbuf_printf(sb, "\t<online>%s</online>\n", 3244 (port->status & CTL_PORT_STATUS_ONLINE) ? "YES" : "NO"); 3245 if (retval != 0) 3246 break; 3247 3248 retval = sbuf_printf(sb, "\t<port_name>%s</port_name>\n", 3249 port->port_name); 3250 if (retval != 0) 3251 break; 3252 3253 retval = sbuf_printf(sb, "\t<physical_port>%d</physical_port>\n", 3254 port->physical_port); 3255 if (retval != 0) 3256 break; 3257 3258 retval = sbuf_printf(sb, "\t<virtual_port>%d</virtual_port>\n", 3259 port->virtual_port); 3260 if (retval != 0) 3261 break; 3262 3263 if (port->target_devid != NULL) { 3264 sbuf_printf(sb, "\t<target>"); 3265 ctl_id_sbuf(port->target_devid, sb); 3266 sbuf_printf(sb, "</target>\n"); 3267 } 3268 3269 if (port->port_devid != NULL) { 3270 sbuf_printf(sb, "\t<port>"); 3271 ctl_id_sbuf(port->port_devid, sb); 3272 sbuf_printf(sb, "</port>\n"); 3273 } 3274 3275 if (port->port_info != NULL) { 3276 retval = port->port_info(port->onoff_arg, sb); 3277 if (retval != 0) 3278 break; 3279 } 3280 STAILQ_FOREACH(opt, &port->options, links) { 3281 retval = sbuf_printf(sb, "\t<%s>%s</%s>\n", 3282 opt->name, opt->value, opt->name); 3283 if (retval != 0) 3284 break; 3285 } 3286 3287 if (port->lun_map != NULL) { 3288 sbuf_printf(sb, "\t<lun_map>on</lun_map>\n"); 3289 for (j = 0; j < CTL_MAX_LUNS; j++) { 3290 plun = ctl_lun_map_from_port(port, j); 3291 if (plun == UINT32_MAX) 3292 continue; 3293 sbuf_printf(sb, 3294 "\t<lun id=\"%u\">%u</lun>\n", 3295 j, plun); 3296 } 3297 } 3298 3299 for (j = 0; j < CTL_MAX_INIT_PER_PORT; j++) { 3300 if (port->wwpn_iid[j].in_use == 0 || 3301 (port->wwpn_iid[j].wwpn == 0 && 3302 port->wwpn_iid[j].name == NULL)) 3303 continue; 3304 3305 if (port->wwpn_iid[j].name != NULL) 3306 retval = sbuf_printf(sb, 3307 "\t<initiator id=\"%u\">%s</initiator>\n", 3308 j, port->wwpn_iid[j].name); 3309 else 3310 retval = sbuf_printf(sb, 3311 "\t<initiator id=\"%u\">naa.%08jx</initiator>\n", 3312 j, port->wwpn_iid[j].wwpn); 3313 if (retval != 0) 3314 break; 3315 } 3316 if (retval != 0) 3317 break; 3318 3319 retval = sbuf_printf(sb, "</targ_port>\n"); 3320 if (retval != 0) 3321 break; 3322 } 3323 mtx_unlock(&softc->ctl_lock); 3324 3325 if ((retval != 0) 3326 || ((retval = sbuf_printf(sb, "</ctlportlist>\n")) != 0)) { 3327 retval = 0; 3328 sbuf_delete(sb); 3329 list->status = CTL_LUN_LIST_NEED_MORE_SPACE; 3330 snprintf(list->error_str, sizeof(list->error_str), 3331 "Out of space, %d bytes is too small", 3332 list->alloc_len); 3333 break; 3334 } 3335 3336 sbuf_finish(sb); 3337 3338 retval = copyout(sbuf_data(sb), list->lun_xml, 3339 sbuf_len(sb) + 1); 3340 3341 list->fill_len = sbuf_len(sb) + 1; 3342 list->status = CTL_LUN_LIST_OK; 3343 sbuf_delete(sb); 3344 break; 3345 } 3346 case CTL_LUN_MAP: { 3347 struct ctl_lun_map *lm = (struct ctl_lun_map *)addr; 3348 struct ctl_port *port; 3349 3350 mtx_lock(&softc->ctl_lock); 3351 if (lm->port < softc->port_min || 3352 lm->port >= softc->port_max || 3353 (port = softc->ctl_ports[lm->port]) == NULL) { 3354 mtx_unlock(&softc->ctl_lock); 3355 return (ENXIO); 3356 } 3357 if (port->status & CTL_PORT_STATUS_ONLINE) { 3358 STAILQ_FOREACH(lun, &softc->lun_list, links) { 3359 if (ctl_lun_map_to_port(port, lun->lun) == 3360 UINT32_MAX) 3361 continue; 3362 mtx_lock(&lun->lun_lock); 3363 ctl_est_ua_port(lun, lm->port, -1, 3364 CTL_UA_LUN_CHANGE); 3365 mtx_unlock(&lun->lun_lock); 3366 } 3367 } 3368 mtx_unlock(&softc->ctl_lock); // XXX: port_enable sleeps 3369 if (lm->plun < CTL_MAX_LUNS) { 3370 if (lm->lun == UINT32_MAX) 3371 retval = ctl_lun_map_unset(port, lm->plun); 3372 else if (lm->lun < CTL_MAX_LUNS && 3373 softc->ctl_luns[lm->lun] != NULL) 3374 retval = ctl_lun_map_set(port, lm->plun, lm->lun); 3375 else 3376 return (ENXIO); 3377 } else if (lm->plun == UINT32_MAX) { 3378 if (lm->lun == UINT32_MAX) 3379 retval = ctl_lun_map_deinit(port); 3380 else 3381 retval = ctl_lun_map_init(port); 3382 } else 3383 return (ENXIO); 3384 if (port->status & CTL_PORT_STATUS_ONLINE) 3385 ctl_isc_announce_port(port); 3386 break; 3387 } 3388 default: { 3389 /* XXX KDM should we fix this? */ 3390#if 0 3391 struct ctl_backend_driver *backend; 3392 unsigned int type; 3393 int found; 3394 3395 found = 0; 3396 3397 /* 3398 * We encode the backend type as the ioctl type for backend 3399 * ioctls. So parse it out here, and then search for a 3400 * backend of this type. 3401 */ 3402 type = _IOC_TYPE(cmd); 3403 3404 STAILQ_FOREACH(backend, &softc->be_list, links) { 3405 if (backend->type == type) { 3406 found = 1; 3407 break; 3408 } 3409 } 3410 if (found == 0) { 3411 printf("ctl: unknown ioctl command %#lx or backend " 3412 "%d\n", cmd, type); 3413 retval = EINVAL; 3414 break; 3415 } 3416 retval = backend->ioctl(dev, cmd, addr, flag, td); 3417#endif 3418 retval = ENOTTY; 3419 break; 3420 } 3421 } 3422 return (retval); 3423} 3424 3425uint32_t 3426ctl_get_initindex(struct ctl_nexus *nexus) 3427{ 3428 return (nexus->initid + (nexus->targ_port * CTL_MAX_INIT_PER_PORT)); 3429} 3430 3431int 3432ctl_lun_map_init(struct ctl_port *port) 3433{ 3434 struct ctl_softc *softc = port->ctl_softc; 3435 struct ctl_lun *lun; 3436 uint32_t i; 3437 3438 if (port->lun_map == NULL) 3439 port->lun_map = malloc(sizeof(uint32_t) * CTL_MAX_LUNS, 3440 M_CTL, M_NOWAIT); 3441 if (port->lun_map == NULL) 3442 return (ENOMEM); 3443 for (i = 0; i < CTL_MAX_LUNS; i++) 3444 port->lun_map[i] = UINT32_MAX; 3445 if (port->status & CTL_PORT_STATUS_ONLINE) { 3446 if (port->lun_disable != NULL) { 3447 STAILQ_FOREACH(lun, &softc->lun_list, links) 3448 port->lun_disable(port->targ_lun_arg, lun->lun); 3449 } 3450 ctl_isc_announce_port(port); 3451 } 3452 return (0); 3453} 3454 3455int 3456ctl_lun_map_deinit(struct ctl_port *port) 3457{ 3458 struct ctl_softc *softc = port->ctl_softc; 3459 struct ctl_lun *lun; 3460 3461 if (port->lun_map == NULL) 3462 return (0); 3463 free(port->lun_map, M_CTL); 3464 port->lun_map = NULL; 3465 if (port->status & CTL_PORT_STATUS_ONLINE) { 3466 if (port->lun_enable != NULL) { 3467 STAILQ_FOREACH(lun, &softc->lun_list, links) 3468 port->lun_enable(port->targ_lun_arg, lun->lun); 3469 } 3470 ctl_isc_announce_port(port); 3471 } 3472 return (0); 3473} 3474 3475int 3476ctl_lun_map_set(struct ctl_port *port, uint32_t plun, uint32_t glun) 3477{ 3478 int status; 3479 uint32_t old; 3480 3481 if (port->lun_map == NULL) { 3482 status = ctl_lun_map_init(port); 3483 if (status != 0) 3484 return (status); 3485 } 3486 old = port->lun_map[plun]; 3487 port->lun_map[plun] = glun; 3488 if ((port->status & CTL_PORT_STATUS_ONLINE) && old == UINT32_MAX) { 3489 if (port->lun_enable != NULL) 3490 port->lun_enable(port->targ_lun_arg, plun); 3491 ctl_isc_announce_port(port); 3492 } 3493 return (0); 3494} 3495 3496int 3497ctl_lun_map_unset(struct ctl_port *port, uint32_t plun) 3498{ 3499 uint32_t old; 3500 3501 if (port->lun_map == NULL) 3502 return (0); 3503 old = port->lun_map[plun]; 3504 port->lun_map[plun] = UINT32_MAX; 3505 if ((port->status & CTL_PORT_STATUS_ONLINE) && old != UINT32_MAX) { 3506 if (port->lun_disable != NULL) 3507 port->lun_disable(port->targ_lun_arg, plun); 3508 ctl_isc_announce_port(port); 3509 } 3510 return (0); 3511} 3512 3513uint32_t 3514ctl_lun_map_from_port(struct ctl_port *port, uint32_t lun_id) 3515{ 3516 3517 if (port == NULL) 3518 return (UINT32_MAX); 3519 if (port->lun_map == NULL || lun_id == UINT32_MAX) 3520 return (lun_id); 3521 return (port->lun_map[lun_id]); 3522} 3523 3524uint32_t 3525ctl_lun_map_to_port(struct ctl_port *port, uint32_t lun_id) 3526{ 3527 uint32_t i; 3528 3529 if (port == NULL) 3530 return (UINT32_MAX); 3531 if (port->lun_map == NULL) 3532 return (lun_id); 3533 for (i = 0; i < CTL_MAX_LUNS; i++) { 3534 if (port->lun_map[i] == lun_id) 3535 return (i); 3536 } 3537 return (UINT32_MAX); 3538} 3539 3540uint32_t 3541ctl_decode_lun(uint64_t encoded) 3542{ 3543 uint8_t lun[8]; 3544 uint32_t result = 0xffffffff; 3545 3546 be64enc(lun, encoded); 3547 switch (lun[0] & RPL_LUNDATA_ATYP_MASK) { 3548 case RPL_LUNDATA_ATYP_PERIPH: 3549 if ((lun[0] & 0x3f) == 0 && lun[2] == 0 && lun[3] == 0 && 3550 lun[4] == 0 && lun[5] == 0 && lun[6] == 0 && lun[7] == 0) 3551 result = lun[1]; 3552 break; 3553 case RPL_LUNDATA_ATYP_FLAT: 3554 if (lun[2] == 0 && lun[3] == 0 && lun[4] == 0 && lun[5] == 0 && 3555 lun[6] == 0 && lun[7] == 0) 3556 result = ((lun[0] & 0x3f) << 8) + lun[1]; 3557 break; 3558 case RPL_LUNDATA_ATYP_EXTLUN: 3559 switch (lun[0] & RPL_LUNDATA_EXT_EAM_MASK) { 3560 case 0x02: 3561 switch (lun[0] & RPL_LUNDATA_EXT_LEN_MASK) { 3562 case 0x00: 3563 result = lun[1]; 3564 break; 3565 case 0x10: 3566 result = (lun[1] << 16) + (lun[2] << 8) + 3567 lun[3]; 3568 break; 3569 case 0x20: 3570 if (lun[1] == 0 && lun[6] == 0 && lun[7] == 0) 3571 result = (lun[2] << 24) + 3572 (lun[3] << 16) + (lun[4] << 8) + 3573 lun[5]; 3574 break; 3575 } 3576 break; 3577 case RPL_LUNDATA_EXT_EAM_NOT_SPEC: 3578 result = 0xffffffff; 3579 break; 3580 } 3581 break; 3582 } 3583 return (result); 3584} 3585 3586uint64_t 3587ctl_encode_lun(uint32_t decoded) 3588{ 3589 uint64_t l = decoded; 3590 3591 if (l <= 0xff) 3592 return (((uint64_t)RPL_LUNDATA_ATYP_PERIPH << 56) | (l << 48)); 3593 if (l <= 0x3fff) 3594 return (((uint64_t)RPL_LUNDATA_ATYP_FLAT << 56) | (l << 48)); 3595 if (l <= 0xffffff) 3596 return (((uint64_t)(RPL_LUNDATA_ATYP_EXTLUN | 0x12) << 56) | 3597 (l << 32)); 3598 return ((((uint64_t)RPL_LUNDATA_ATYP_EXTLUN | 0x22) << 56) | (l << 16)); 3599} 3600 3601static struct ctl_port * 3602ctl_io_port(struct ctl_io_hdr *io_hdr) 3603{ 3604 3605 return (control_softc->ctl_ports[io_hdr->nexus.targ_port]); 3606} 3607 3608int 3609ctl_ffz(uint32_t *mask, uint32_t first, uint32_t last) 3610{ 3611 int i; 3612 3613 for (i = first; i < last; i++) { 3614 if ((mask[i / 32] & (1 << (i % 32))) == 0) 3615 return (i); 3616 } 3617 return (-1); 3618} 3619 3620int 3621ctl_set_mask(uint32_t *mask, uint32_t bit) 3622{ 3623 uint32_t chunk, piece; 3624 3625 chunk = bit >> 5; 3626 piece = bit % (sizeof(uint32_t) * 8); 3627 3628 if ((mask[chunk] & (1 << piece)) != 0) 3629 return (-1); 3630 else 3631 mask[chunk] |= (1 << piece); 3632 3633 return (0); 3634} 3635 3636int 3637ctl_clear_mask(uint32_t *mask, uint32_t bit) 3638{ 3639 uint32_t chunk, piece; 3640 3641 chunk = bit >> 5; 3642 piece = bit % (sizeof(uint32_t) * 8); 3643 3644 if ((mask[chunk] & (1 << piece)) == 0) 3645 return (-1); 3646 else 3647 mask[chunk] &= ~(1 << piece); 3648 3649 return (0); 3650} 3651 3652int 3653ctl_is_set(uint32_t *mask, uint32_t bit) 3654{ 3655 uint32_t chunk, piece; 3656 3657 chunk = bit >> 5; 3658 piece = bit % (sizeof(uint32_t) * 8); 3659 3660 if ((mask[chunk] & (1 << piece)) == 0) 3661 return (0); 3662 else 3663 return (1); 3664} 3665 3666static uint64_t 3667ctl_get_prkey(struct ctl_lun *lun, uint32_t residx) 3668{ 3669 uint64_t *t; 3670 3671 t = lun->pr_keys[residx/CTL_MAX_INIT_PER_PORT]; 3672 if (t == NULL) 3673 return (0); 3674 return (t[residx % CTL_MAX_INIT_PER_PORT]); 3675} 3676 3677static void 3678ctl_clr_prkey(struct ctl_lun *lun, uint32_t residx) 3679{ 3680 uint64_t *t; 3681 3682 t = lun->pr_keys[residx/CTL_MAX_INIT_PER_PORT]; 3683 if (t == NULL) 3684 return; 3685 t[residx % CTL_MAX_INIT_PER_PORT] = 0; 3686} 3687 3688static void 3689ctl_alloc_prkey(struct ctl_lun *lun, uint32_t residx) 3690{ 3691 uint64_t *p; 3692 u_int i; 3693 3694 i = residx/CTL_MAX_INIT_PER_PORT; 3695 if (lun->pr_keys[i] != NULL) 3696 return; 3697 mtx_unlock(&lun->lun_lock); 3698 p = malloc(sizeof(uint64_t) * CTL_MAX_INIT_PER_PORT, M_CTL, 3699 M_WAITOK | M_ZERO); 3700 mtx_lock(&lun->lun_lock); 3701 if (lun->pr_keys[i] == NULL) 3702 lun->pr_keys[i] = p; 3703 else 3704 free(p, M_CTL); 3705} 3706 3707static void 3708ctl_set_prkey(struct ctl_lun *lun, uint32_t residx, uint64_t key) 3709{ 3710 uint64_t *t; 3711 3712 t = lun->pr_keys[residx/CTL_MAX_INIT_PER_PORT]; 3713 KASSERT(t != NULL, ("prkey %d is not allocated", residx)); 3714 t[residx % CTL_MAX_INIT_PER_PORT] = key; 3715} 3716 3717/* 3718 * ctl_softc, pool_name, total_ctl_io are passed in. 3719 * npool is passed out. 3720 */ 3721int 3722ctl_pool_create(struct ctl_softc *ctl_softc, const char *pool_name, 3723 uint32_t total_ctl_io, void **npool) 3724{ 3725#ifdef IO_POOLS 3726 struct ctl_io_pool *pool; 3727 3728 pool = (struct ctl_io_pool *)malloc(sizeof(*pool), M_CTL, 3729 M_NOWAIT | M_ZERO); 3730 if (pool == NULL) 3731 return (ENOMEM); 3732 3733 snprintf(pool->name, sizeof(pool->name), "CTL IO %s", pool_name); 3734 pool->ctl_softc = ctl_softc; 3735 pool->zone = uma_zsecond_create(pool->name, NULL, 3736 NULL, NULL, NULL, ctl_softc->io_zone); 3737 /* uma_prealloc(pool->zone, total_ctl_io); */ 3738 3739 *npool = pool; 3740#else 3741 *npool = ctl_softc->io_zone; 3742#endif 3743 return (0); 3744} 3745 3746void 3747ctl_pool_free(struct ctl_io_pool *pool) 3748{ 3749 3750 if (pool == NULL) 3751 return; 3752 3753#ifdef IO_POOLS 3754 uma_zdestroy(pool->zone); 3755 free(pool, M_CTL); 3756#endif 3757} 3758 3759union ctl_io * 3760ctl_alloc_io(void *pool_ref) 3761{ 3762 union ctl_io *io; 3763#ifdef IO_POOLS 3764 struct ctl_io_pool *pool = (struct ctl_io_pool *)pool_ref; 3765 3766 io = uma_zalloc(pool->zone, M_WAITOK); 3767#else 3768 io = uma_zalloc((uma_zone_t)pool_ref, M_WAITOK); 3769#endif 3770 if (io != NULL) 3771 io->io_hdr.pool = pool_ref; 3772 return (io); 3773} 3774 3775union ctl_io * 3776ctl_alloc_io_nowait(void *pool_ref) 3777{ 3778 union ctl_io *io; 3779#ifdef IO_POOLS 3780 struct ctl_io_pool *pool = (struct ctl_io_pool *)pool_ref; 3781 3782 io = uma_zalloc(pool->zone, M_NOWAIT); 3783#else 3784 io = uma_zalloc((uma_zone_t)pool_ref, M_NOWAIT); 3785#endif 3786 if (io != NULL) 3787 io->io_hdr.pool = pool_ref; 3788 return (io); 3789} 3790 3791void 3792ctl_free_io(union ctl_io *io) 3793{ 3794#ifdef IO_POOLS 3795 struct ctl_io_pool *pool; 3796#endif 3797 3798 if (io == NULL) 3799 return; 3800 3801#ifdef IO_POOLS 3802 pool = (struct ctl_io_pool *)io->io_hdr.pool; 3803 uma_zfree(pool->zone, io); 3804#else 3805 uma_zfree((uma_zone_t)io->io_hdr.pool, io); 3806#endif 3807} 3808 3809void 3810ctl_zero_io(union ctl_io *io) 3811{ 3812 void *pool_ref; 3813 3814 if (io == NULL) 3815 return; 3816 3817 /* 3818 * May need to preserve linked list pointers at some point too. 3819 */ 3820 pool_ref = io->io_hdr.pool; 3821 memset(io, 0, sizeof(*io)); 3822 io->io_hdr.pool = pool_ref; 3823} 3824 3825int 3826ctl_expand_number(const char *buf, uint64_t *num) 3827{ 3828 char *endptr; 3829 uint64_t number; 3830 unsigned shift; 3831 3832 number = strtoq(buf, &endptr, 0); 3833 3834 switch (tolower((unsigned char)*endptr)) { 3835 case 'e': 3836 shift = 60; 3837 break; 3838 case 'p': 3839 shift = 50; 3840 break; 3841 case 't': 3842 shift = 40; 3843 break; 3844 case 'g': 3845 shift = 30; 3846 break; 3847 case 'm': 3848 shift = 20; 3849 break; 3850 case 'k': 3851 shift = 10; 3852 break; 3853 case 'b': 3854 case '\0': /* No unit. */ 3855 *num = number; 3856 return (0); 3857 default: 3858 /* Unrecognized unit. */ 3859 return (-1); 3860 } 3861 3862 if ((number << shift) >> shift != number) { 3863 /* Overflow */ 3864 return (-1); 3865 } 3866 *num = number << shift; 3867 return (0); 3868} 3869 3870 3871/* 3872 * This routine could be used in the future to load default and/or saved 3873 * mode page parameters for a particuar lun. 3874 */ 3875static int 3876ctl_init_page_index(struct ctl_lun *lun) 3877{ 3878 int i, page_code; 3879 struct ctl_page_index *page_index; 3880 const char *value; 3881 uint64_t ival; 3882 3883 memcpy(&lun->mode_pages.index, page_index_template, 3884 sizeof(page_index_template)); 3885 3886 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 3887 3888 page_index = &lun->mode_pages.index[i]; 3889 if (lun->be_lun->lun_type == T_DIRECT && 3890 (page_index->page_flags & CTL_PAGE_FLAG_DIRECT) == 0) 3891 continue; 3892 if (lun->be_lun->lun_type == T_PROCESSOR && 3893 (page_index->page_flags & CTL_PAGE_FLAG_PROC) == 0) 3894 continue; 3895 if (lun->be_lun->lun_type == T_CDROM && 3896 (page_index->page_flags & CTL_PAGE_FLAG_CDROM) == 0) 3897 continue; 3898 3899 page_code = page_index->page_code & SMPH_PC_MASK; 3900 switch (page_code) { 3901 case SMS_RW_ERROR_RECOVERY_PAGE: { 3902 KASSERT(page_index->subpage == SMS_SUBPAGE_PAGE_0, 3903 ("subpage %#x for page %#x is incorrect!", 3904 page_index->subpage, page_code)); 3905 memcpy(&lun->mode_pages.rw_er_page[CTL_PAGE_CURRENT], 3906 &rw_er_page_default, 3907 sizeof(rw_er_page_default)); 3908 memcpy(&lun->mode_pages.rw_er_page[CTL_PAGE_CHANGEABLE], 3909 &rw_er_page_changeable, 3910 sizeof(rw_er_page_changeable)); 3911 memcpy(&lun->mode_pages.rw_er_page[CTL_PAGE_DEFAULT], 3912 &rw_er_page_default, 3913 sizeof(rw_er_page_default)); 3914 memcpy(&lun->mode_pages.rw_er_page[CTL_PAGE_SAVED], 3915 &rw_er_page_default, 3916 sizeof(rw_er_page_default)); 3917 page_index->page_data = 3918 (uint8_t *)lun->mode_pages.rw_er_page; 3919 break; 3920 } 3921 case SMS_FORMAT_DEVICE_PAGE: { 3922 struct scsi_format_page *format_page; 3923 3924 KASSERT(page_index->subpage == SMS_SUBPAGE_PAGE_0, 3925 ("subpage %#x for page %#x is incorrect!", 3926 page_index->subpage, page_code)); 3927 3928 /* 3929 * Sectors per track are set above. Bytes per 3930 * sector need to be set here on a per-LUN basis. 3931 */ 3932 memcpy(&lun->mode_pages.format_page[CTL_PAGE_CURRENT], 3933 &format_page_default, 3934 sizeof(format_page_default)); 3935 memcpy(&lun->mode_pages.format_page[ 3936 CTL_PAGE_CHANGEABLE], &format_page_changeable, 3937 sizeof(format_page_changeable)); 3938 memcpy(&lun->mode_pages.format_page[CTL_PAGE_DEFAULT], 3939 &format_page_default, 3940 sizeof(format_page_default)); 3941 memcpy(&lun->mode_pages.format_page[CTL_PAGE_SAVED], 3942 &format_page_default, 3943 sizeof(format_page_default)); 3944 3945 format_page = &lun->mode_pages.format_page[ 3946 CTL_PAGE_CURRENT]; 3947 scsi_ulto2b(lun->be_lun->blocksize, 3948 format_page->bytes_per_sector); 3949 3950 format_page = &lun->mode_pages.format_page[ 3951 CTL_PAGE_DEFAULT]; 3952 scsi_ulto2b(lun->be_lun->blocksize, 3953 format_page->bytes_per_sector); 3954 3955 format_page = &lun->mode_pages.format_page[ 3956 CTL_PAGE_SAVED]; 3957 scsi_ulto2b(lun->be_lun->blocksize, 3958 format_page->bytes_per_sector); 3959 3960 page_index->page_data = 3961 (uint8_t *)lun->mode_pages.format_page; 3962 break; 3963 } 3964 case SMS_RIGID_DISK_PAGE: { 3965 struct scsi_rigid_disk_page *rigid_disk_page; 3966 uint32_t sectors_per_cylinder; 3967 uint64_t cylinders; 3968#ifndef __XSCALE__ 3969 int shift; 3970#endif /* !__XSCALE__ */ 3971 3972 KASSERT(page_index->subpage == SMS_SUBPAGE_PAGE_0, 3973 ("subpage %#x for page %#x is incorrect!", 3974 page_index->subpage, page_code)); 3975 3976 /* 3977 * Rotation rate and sectors per track are set 3978 * above. We calculate the cylinders here based on 3979 * capacity. Due to the number of heads and 3980 * sectors per track we're using, smaller arrays 3981 * may turn out to have 0 cylinders. Linux and 3982 * FreeBSD don't pay attention to these mode pages 3983 * to figure out capacity, but Solaris does. It 3984 * seems to deal with 0 cylinders just fine, and 3985 * works out a fake geometry based on the capacity. 3986 */ 3987 memcpy(&lun->mode_pages.rigid_disk_page[ 3988 CTL_PAGE_DEFAULT], &rigid_disk_page_default, 3989 sizeof(rigid_disk_page_default)); 3990 memcpy(&lun->mode_pages.rigid_disk_page[ 3991 CTL_PAGE_CHANGEABLE],&rigid_disk_page_changeable, 3992 sizeof(rigid_disk_page_changeable)); 3993 3994 sectors_per_cylinder = CTL_DEFAULT_SECTORS_PER_TRACK * 3995 CTL_DEFAULT_HEADS; 3996 3997 /* 3998 * The divide method here will be more accurate, 3999 * probably, but results in floating point being 4000 * used in the kernel on i386 (__udivdi3()). On the 4001 * XScale, though, __udivdi3() is implemented in 4002 * software. 4003 * 4004 * The shift method for cylinder calculation is 4005 * accurate if sectors_per_cylinder is a power of 4006 * 2. Otherwise it might be slightly off -- you 4007 * might have a bit of a truncation problem. 4008 */ 4009#ifdef __XSCALE__ 4010 cylinders = (lun->be_lun->maxlba + 1) / 4011 sectors_per_cylinder; 4012#else 4013 for (shift = 31; shift > 0; shift--) { 4014 if (sectors_per_cylinder & (1 << shift)) 4015 break; 4016 } 4017 cylinders = (lun->be_lun->maxlba + 1) >> shift; 4018#endif 4019 4020 /* 4021 * We've basically got 3 bytes, or 24 bits for the 4022 * cylinder size in the mode page. If we're over, 4023 * just round down to 2^24. 4024 */ 4025 if (cylinders > 0xffffff) 4026 cylinders = 0xffffff; 4027 4028 rigid_disk_page = &lun->mode_pages.rigid_disk_page[ 4029 CTL_PAGE_DEFAULT]; 4030 scsi_ulto3b(cylinders, rigid_disk_page->cylinders); 4031 4032 if ((value = ctl_get_opt(&lun->be_lun->options, 4033 "rpm")) != NULL) { 4034 scsi_ulto2b(strtol(value, NULL, 0), 4035 rigid_disk_page->rotation_rate); 4036 } 4037 4038 memcpy(&lun->mode_pages.rigid_disk_page[CTL_PAGE_CURRENT], 4039 &lun->mode_pages.rigid_disk_page[CTL_PAGE_DEFAULT], 4040 sizeof(rigid_disk_page_default)); 4041 memcpy(&lun->mode_pages.rigid_disk_page[CTL_PAGE_SAVED], 4042 &lun->mode_pages.rigid_disk_page[CTL_PAGE_DEFAULT], 4043 sizeof(rigid_disk_page_default)); 4044 4045 page_index->page_data = 4046 (uint8_t *)lun->mode_pages.rigid_disk_page; 4047 break; 4048 } 4049 case SMS_VERIFY_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.verify_er_page[CTL_PAGE_CURRENT], 4054 &verify_er_page_default, 4055 sizeof(verify_er_page_default)); 4056 memcpy(&lun->mode_pages.verify_er_page[CTL_PAGE_CHANGEABLE], 4057 &verify_er_page_changeable, 4058 sizeof(verify_er_page_changeable)); 4059 memcpy(&lun->mode_pages.verify_er_page[CTL_PAGE_DEFAULT], 4060 &verify_er_page_default, 4061 sizeof(verify_er_page_default)); 4062 memcpy(&lun->mode_pages.verify_er_page[CTL_PAGE_SAVED], 4063 &verify_er_page_default, 4064 sizeof(verify_er_page_default)); 4065 page_index->page_data = 4066 (uint8_t *)lun->mode_pages.verify_er_page; 4067 break; 4068 } 4069 case SMS_CACHING_PAGE: { 4070 struct scsi_caching_page *caching_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 memcpy(&lun->mode_pages.caching_page[CTL_PAGE_DEFAULT], 4076 &caching_page_default, 4077 sizeof(caching_page_default)); 4078 memcpy(&lun->mode_pages.caching_page[ 4079 CTL_PAGE_CHANGEABLE], &caching_page_changeable, 4080 sizeof(caching_page_changeable)); 4081 memcpy(&lun->mode_pages.caching_page[CTL_PAGE_SAVED], 4082 &caching_page_default, 4083 sizeof(caching_page_default)); 4084 caching_page = &lun->mode_pages.caching_page[ 4085 CTL_PAGE_SAVED]; 4086 value = ctl_get_opt(&lun->be_lun->options, "writecache"); 4087 if (value != NULL && strcmp(value, "off") == 0) 4088 caching_page->flags1 &= ~SCP_WCE; 4089 value = ctl_get_opt(&lun->be_lun->options, "readcache"); 4090 if (value != NULL && strcmp(value, "off") == 0) 4091 caching_page->flags1 |= SCP_RCD; 4092 memcpy(&lun->mode_pages.caching_page[CTL_PAGE_CURRENT], 4093 &lun->mode_pages.caching_page[CTL_PAGE_SAVED], 4094 sizeof(caching_page_default)); 4095 page_index->page_data = 4096 (uint8_t *)lun->mode_pages.caching_page; 4097 break; 4098 } 4099 case SMS_CONTROL_MODE_PAGE: { 4100 switch (page_index->subpage) { 4101 case SMS_SUBPAGE_PAGE_0: { 4102 struct scsi_control_page *control_page; 4103 4104 memcpy(&lun->mode_pages.control_page[ 4105 CTL_PAGE_DEFAULT], 4106 &control_page_default, 4107 sizeof(control_page_default)); 4108 memcpy(&lun->mode_pages.control_page[ 4109 CTL_PAGE_CHANGEABLE], 4110 &control_page_changeable, 4111 sizeof(control_page_changeable)); 4112 memcpy(&lun->mode_pages.control_page[ 4113 CTL_PAGE_SAVED], 4114 &control_page_default, 4115 sizeof(control_page_default)); 4116 control_page = &lun->mode_pages.control_page[ 4117 CTL_PAGE_SAVED]; 4118 value = ctl_get_opt(&lun->be_lun->options, 4119 "reordering"); 4120 if (value != NULL && 4121 strcmp(value, "unrestricted") == 0) { 4122 control_page->queue_flags &= 4123 ~SCP_QUEUE_ALG_MASK; 4124 control_page->queue_flags |= 4125 SCP_QUEUE_ALG_UNRESTRICTED; 4126 } 4127 memcpy(&lun->mode_pages.control_page[ 4128 CTL_PAGE_CURRENT], 4129 &lun->mode_pages.control_page[ 4130 CTL_PAGE_SAVED], 4131 sizeof(control_page_default)); 4132 page_index->page_data = 4133 (uint8_t *)lun->mode_pages.control_page; 4134 break; 4135 } 4136 case 0x01: 4137 memcpy(&lun->mode_pages.control_ext_page[ 4138 CTL_PAGE_DEFAULT], 4139 &control_ext_page_default, 4140 sizeof(control_ext_page_default)); 4141 memcpy(&lun->mode_pages.control_ext_page[ 4142 CTL_PAGE_CHANGEABLE], 4143 &control_ext_page_changeable, 4144 sizeof(control_ext_page_changeable)); 4145 memcpy(&lun->mode_pages.control_ext_page[ 4146 CTL_PAGE_SAVED], 4147 &control_ext_page_default, 4148 sizeof(control_ext_page_default)); 4149 memcpy(&lun->mode_pages.control_ext_page[ 4150 CTL_PAGE_CURRENT], 4151 &lun->mode_pages.control_ext_page[ 4152 CTL_PAGE_SAVED], 4153 sizeof(control_ext_page_default)); 4154 page_index->page_data = 4155 (uint8_t *)lun->mode_pages.control_ext_page; 4156 break; 4157 default: 4158 panic("subpage %#x for page %#x is incorrect!", 4159 page_index->subpage, page_code); 4160 } 4161 break; 4162 } 4163 case SMS_INFO_EXCEPTIONS_PAGE: { 4164 switch (page_index->subpage) { 4165 case SMS_SUBPAGE_PAGE_0: 4166 memcpy(&lun->mode_pages.ie_page[CTL_PAGE_CURRENT], 4167 &ie_page_default, 4168 sizeof(ie_page_default)); 4169 memcpy(&lun->mode_pages.ie_page[ 4170 CTL_PAGE_CHANGEABLE], &ie_page_changeable, 4171 sizeof(ie_page_changeable)); 4172 memcpy(&lun->mode_pages.ie_page[CTL_PAGE_DEFAULT], 4173 &ie_page_default, 4174 sizeof(ie_page_default)); 4175 memcpy(&lun->mode_pages.ie_page[CTL_PAGE_SAVED], 4176 &ie_page_default, 4177 sizeof(ie_page_default)); 4178 page_index->page_data = 4179 (uint8_t *)lun->mode_pages.ie_page; 4180 break; 4181 case 0x02: { 4182 struct ctl_logical_block_provisioning_page *page; 4183 4184 memcpy(&lun->mode_pages.lbp_page[CTL_PAGE_DEFAULT], 4185 &lbp_page_default, 4186 sizeof(lbp_page_default)); 4187 memcpy(&lun->mode_pages.lbp_page[ 4188 CTL_PAGE_CHANGEABLE], &lbp_page_changeable, 4189 sizeof(lbp_page_changeable)); 4190 memcpy(&lun->mode_pages.lbp_page[CTL_PAGE_SAVED], 4191 &lbp_page_default, 4192 sizeof(lbp_page_default)); 4193 page = &lun->mode_pages.lbp_page[CTL_PAGE_SAVED]; 4194 value = ctl_get_opt(&lun->be_lun->options, 4195 "avail-threshold"); 4196 if (value != NULL && 4197 ctl_expand_number(value, &ival) == 0) { 4198 page->descr[0].flags |= SLBPPD_ENABLED | 4199 SLBPPD_ARMING_DEC; 4200 if (lun->be_lun->blocksize) 4201 ival /= lun->be_lun->blocksize; 4202 else 4203 ival /= 512; 4204 scsi_ulto4b(ival >> CTL_LBP_EXPONENT, 4205 page->descr[0].count); 4206 } 4207 value = ctl_get_opt(&lun->be_lun->options, 4208 "used-threshold"); 4209 if (value != NULL && 4210 ctl_expand_number(value, &ival) == 0) { 4211 page->descr[1].flags |= SLBPPD_ENABLED | 4212 SLBPPD_ARMING_INC; 4213 if (lun->be_lun->blocksize) 4214 ival /= lun->be_lun->blocksize; 4215 else 4216 ival /= 512; 4217 scsi_ulto4b(ival >> CTL_LBP_EXPONENT, 4218 page->descr[1].count); 4219 } 4220 value = ctl_get_opt(&lun->be_lun->options, 4221 "pool-avail-threshold"); 4222 if (value != NULL && 4223 ctl_expand_number(value, &ival) == 0) { 4224 page->descr[2].flags |= SLBPPD_ENABLED | 4225 SLBPPD_ARMING_DEC; 4226 if (lun->be_lun->blocksize) 4227 ival /= lun->be_lun->blocksize; 4228 else 4229 ival /= 512; 4230 scsi_ulto4b(ival >> CTL_LBP_EXPONENT, 4231 page->descr[2].count); 4232 } 4233 value = ctl_get_opt(&lun->be_lun->options, 4234 "pool-used-threshold"); 4235 if (value != NULL && 4236 ctl_expand_number(value, &ival) == 0) { 4237 page->descr[3].flags |= SLBPPD_ENABLED | 4238 SLBPPD_ARMING_INC; 4239 if (lun->be_lun->blocksize) 4240 ival /= lun->be_lun->blocksize; 4241 else 4242 ival /= 512; 4243 scsi_ulto4b(ival >> CTL_LBP_EXPONENT, 4244 page->descr[3].count); 4245 } 4246 memcpy(&lun->mode_pages.lbp_page[CTL_PAGE_CURRENT], 4247 &lun->mode_pages.lbp_page[CTL_PAGE_SAVED], 4248 sizeof(lbp_page_default)); 4249 page_index->page_data = 4250 (uint8_t *)lun->mode_pages.lbp_page; 4251 break; 4252 } 4253 default: 4254 panic("subpage %#x for page %#x is incorrect!", 4255 page_index->subpage, page_code); 4256 } 4257 break; 4258 } 4259 case SMS_CDDVD_CAPS_PAGE:{ 4260 KASSERT(page_index->subpage == SMS_SUBPAGE_PAGE_0, 4261 ("subpage %#x for page %#x is incorrect!", 4262 page_index->subpage, page_code)); 4263 memcpy(&lun->mode_pages.cddvd_page[CTL_PAGE_DEFAULT], 4264 &cddvd_page_default, 4265 sizeof(cddvd_page_default)); 4266 memcpy(&lun->mode_pages.cddvd_page[ 4267 CTL_PAGE_CHANGEABLE], &cddvd_page_changeable, 4268 sizeof(cddvd_page_changeable)); 4269 memcpy(&lun->mode_pages.cddvd_page[CTL_PAGE_SAVED], 4270 &cddvd_page_default, 4271 sizeof(cddvd_page_default)); 4272 memcpy(&lun->mode_pages.cddvd_page[CTL_PAGE_CURRENT], 4273 &lun->mode_pages.cddvd_page[CTL_PAGE_SAVED], 4274 sizeof(cddvd_page_default)); 4275 page_index->page_data = 4276 (uint8_t *)lun->mode_pages.cddvd_page; 4277 break; 4278 } 4279 default: 4280 panic("invalid page code value %#x", page_code); 4281 } 4282 } 4283 4284 return (CTL_RETVAL_COMPLETE); 4285} 4286 4287static int 4288ctl_init_log_page_index(struct ctl_lun *lun) 4289{ 4290 struct ctl_page_index *page_index; 4291 int i, j, k, prev; 4292 4293 memcpy(&lun->log_pages.index, log_page_index_template, 4294 sizeof(log_page_index_template)); 4295 4296 prev = -1; 4297 for (i = 0, j = 0, k = 0; i < CTL_NUM_LOG_PAGES; i++) { 4298 4299 page_index = &lun->log_pages.index[i]; 4300 if (lun->be_lun->lun_type == T_DIRECT && 4301 (page_index->page_flags & CTL_PAGE_FLAG_DIRECT) == 0) 4302 continue; 4303 if (lun->be_lun->lun_type == T_PROCESSOR && 4304 (page_index->page_flags & CTL_PAGE_FLAG_PROC) == 0) 4305 continue; 4306 if (lun->be_lun->lun_type == T_CDROM && 4307 (page_index->page_flags & CTL_PAGE_FLAG_CDROM) == 0) 4308 continue; 4309 4310 if (page_index->page_code == SLS_LOGICAL_BLOCK_PROVISIONING && 4311 lun->backend->lun_attr == NULL) 4312 continue; 4313 4314 if (page_index->page_code != prev) { 4315 lun->log_pages.pages_page[j] = page_index->page_code; 4316 prev = page_index->page_code; 4317 j++; 4318 } 4319 lun->log_pages.subpages_page[k*2] = page_index->page_code; 4320 lun->log_pages.subpages_page[k*2+1] = page_index->subpage; 4321 k++; 4322 } 4323 lun->log_pages.index[0].page_data = &lun->log_pages.pages_page[0]; 4324 lun->log_pages.index[0].page_len = j; 4325 lun->log_pages.index[1].page_data = &lun->log_pages.subpages_page[0]; 4326 lun->log_pages.index[1].page_len = k * 2; 4327 lun->log_pages.index[2].page_data = &lun->log_pages.lbp_page[0]; 4328 lun->log_pages.index[2].page_len = 12*CTL_NUM_LBP_PARAMS; 4329 lun->log_pages.index[3].page_data = (uint8_t *)&lun->log_pages.stat_page; 4330 lun->log_pages.index[3].page_len = sizeof(lun->log_pages.stat_page); 4331 lun->log_pages.index[4].page_data = (uint8_t *)&lun->log_pages.ie_page; 4332 lun->log_pages.index[4].page_len = sizeof(lun->log_pages.ie_page); 4333 4334 return (CTL_RETVAL_COMPLETE); 4335} 4336 4337static int 4338hex2bin(const char *str, uint8_t *buf, int buf_size) 4339{ 4340 int i; 4341 u_char c; 4342 4343 memset(buf, 0, buf_size); 4344 while (isspace(str[0])) 4345 str++; 4346 if (str[0] == '0' && (str[1] == 'x' || str[1] == 'X')) 4347 str += 2; 4348 buf_size *= 2; 4349 for (i = 0; str[i] != 0 && i < buf_size; i++) { 4350 while (str[i] == '-') /* Skip dashes in UUIDs. */ 4351 str++; 4352 c = str[i]; 4353 if (isdigit(c)) 4354 c -= '0'; 4355 else if (isalpha(c)) 4356 c -= isupper(c) ? 'A' - 10 : 'a' - 10; 4357 else 4358 break; 4359 if (c >= 16) 4360 break; 4361 if ((i & 1) == 0) 4362 buf[i / 2] |= (c << 4); 4363 else 4364 buf[i / 2] |= c; 4365 } 4366 return ((i + 1) / 2); 4367} 4368 4369/* 4370 * LUN allocation. 4371 * 4372 * Requirements: 4373 * - caller allocates and zeros LUN storage, or passes in a NULL LUN if he 4374 * wants us to allocate the LUN and he can block. 4375 * - ctl_softc is always set 4376 * - be_lun is set if the LUN has a backend (needed for disk LUNs) 4377 * 4378 * Returns 0 for success, non-zero (errno) for failure. 4379 */ 4380static int 4381ctl_alloc_lun(struct ctl_softc *ctl_softc, struct ctl_lun *ctl_lun, 4382 struct ctl_be_lun *const be_lun) 4383{ 4384 struct ctl_lun *nlun, *lun; 4385 struct scsi_vpd_id_descriptor *desc; 4386 struct scsi_vpd_id_t10 *t10id; 4387 const char *eui, *naa, *scsiname, *uuid, *vendor, *value; 4388 int lun_number, i, lun_malloced; 4389 int devidlen, idlen1, idlen2 = 0, len; 4390 4391 if (be_lun == NULL) 4392 return (EINVAL); 4393 4394 /* 4395 * We currently only support Direct Access or Processor LUN types. 4396 */ 4397 switch (be_lun->lun_type) { 4398 case T_DIRECT: 4399 case T_PROCESSOR: 4400 case T_CDROM: 4401 break; 4402 case T_SEQUENTIAL: 4403 case T_CHANGER: 4404 default: 4405 be_lun->lun_config_status(be_lun->be_lun, 4406 CTL_LUN_CONFIG_FAILURE); 4407 break; 4408 } 4409 if (ctl_lun == NULL) { 4410 lun = malloc(sizeof(*lun), M_CTL, M_WAITOK); 4411 lun_malloced = 1; 4412 } else { 4413 lun_malloced = 0; 4414 lun = ctl_lun; 4415 } 4416 4417 memset(lun, 0, sizeof(*lun)); 4418 if (lun_malloced) 4419 lun->flags = CTL_LUN_MALLOCED; 4420 4421 /* Generate LUN ID. */ 4422 devidlen = max(CTL_DEVID_MIN_LEN, 4423 strnlen(be_lun->device_id, CTL_DEVID_LEN)); 4424 idlen1 = sizeof(*t10id) + devidlen; 4425 len = sizeof(struct scsi_vpd_id_descriptor) + idlen1; 4426 scsiname = ctl_get_opt(&be_lun->options, "scsiname"); 4427 if (scsiname != NULL) { 4428 idlen2 = roundup2(strlen(scsiname) + 1, 4); 4429 len += sizeof(struct scsi_vpd_id_descriptor) + idlen2; 4430 } 4431 eui = ctl_get_opt(&be_lun->options, "eui"); 4432 if (eui != NULL) { 4433 len += sizeof(struct scsi_vpd_id_descriptor) + 16; 4434 } 4435 naa = ctl_get_opt(&be_lun->options, "naa"); 4436 if (naa != NULL) { 4437 len += sizeof(struct scsi_vpd_id_descriptor) + 16; 4438 } 4439 uuid = ctl_get_opt(&be_lun->options, "uuid"); 4440 if (uuid != NULL) { 4441 len += sizeof(struct scsi_vpd_id_descriptor) + 18; 4442 } 4443 lun->lun_devid = malloc(sizeof(struct ctl_devid) + len, 4444 M_CTL, M_WAITOK | M_ZERO); 4445 desc = (struct scsi_vpd_id_descriptor *)lun->lun_devid->data; 4446 desc->proto_codeset = SVPD_ID_CODESET_ASCII; 4447 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | SVPD_ID_TYPE_T10; 4448 desc->length = idlen1; 4449 t10id = (struct scsi_vpd_id_t10 *)&desc->identifier[0]; 4450 memset(t10id->vendor, ' ', sizeof(t10id->vendor)); 4451 if ((vendor = ctl_get_opt(&be_lun->options, "vendor")) == NULL) { 4452 strncpy((char *)t10id->vendor, CTL_VENDOR, sizeof(t10id->vendor)); 4453 } else { 4454 strncpy(t10id->vendor, vendor, 4455 min(sizeof(t10id->vendor), strlen(vendor))); 4456 } 4457 strncpy((char *)t10id->vendor_spec_id, 4458 (char *)be_lun->device_id, devidlen); 4459 if (scsiname != NULL) { 4460 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 4461 desc->length); 4462 desc->proto_codeset = SVPD_ID_CODESET_UTF8; 4463 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | 4464 SVPD_ID_TYPE_SCSI_NAME; 4465 desc->length = idlen2; 4466 strlcpy(desc->identifier, scsiname, idlen2); 4467 } 4468 if (eui != NULL) { 4469 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 4470 desc->length); 4471 desc->proto_codeset = SVPD_ID_CODESET_BINARY; 4472 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | 4473 SVPD_ID_TYPE_EUI64; 4474 desc->length = hex2bin(eui, desc->identifier, 16); 4475 desc->length = desc->length > 12 ? 16 : 4476 (desc->length > 8 ? 12 : 8); 4477 len -= 16 - desc->length; 4478 } 4479 if (naa != NULL) { 4480 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 4481 desc->length); 4482 desc->proto_codeset = SVPD_ID_CODESET_BINARY; 4483 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | 4484 SVPD_ID_TYPE_NAA; 4485 desc->length = hex2bin(naa, desc->identifier, 16); 4486 desc->length = desc->length > 8 ? 16 : 8; 4487 len -= 16 - desc->length; 4488 } 4489 if (uuid != NULL) { 4490 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 4491 desc->length); 4492 desc->proto_codeset = SVPD_ID_CODESET_BINARY; 4493 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | 4494 SVPD_ID_TYPE_UUID; 4495 desc->identifier[0] = 0x10; 4496 hex2bin(uuid, &desc->identifier[2], 16); 4497 desc->length = 18; 4498 } 4499 lun->lun_devid->len = len; 4500 4501 mtx_lock(&ctl_softc->ctl_lock); 4502 /* 4503 * See if the caller requested a particular LUN number. If so, see 4504 * if it is available. Otherwise, allocate the first available LUN. 4505 */ 4506 if (be_lun->flags & CTL_LUN_FLAG_ID_REQ) { 4507 if ((be_lun->req_lun_id > (CTL_MAX_LUNS - 1)) 4508 || (ctl_is_set(ctl_softc->ctl_lun_mask, be_lun->req_lun_id))) { 4509 mtx_unlock(&ctl_softc->ctl_lock); 4510 if (be_lun->req_lun_id > (CTL_MAX_LUNS - 1)) { 4511 printf("ctl: requested LUN ID %d is higher " 4512 "than CTL_MAX_LUNS - 1 (%d)\n", 4513 be_lun->req_lun_id, CTL_MAX_LUNS - 1); 4514 } else { 4515 /* 4516 * XXX KDM return an error, or just assign 4517 * another LUN ID in this case?? 4518 */ 4519 printf("ctl: requested LUN ID %d is already " 4520 "in use\n", be_lun->req_lun_id); 4521 } 4522 if (lun->flags & CTL_LUN_MALLOCED) 4523 free(lun, M_CTL); 4524 be_lun->lun_config_status(be_lun->be_lun, 4525 CTL_LUN_CONFIG_FAILURE); 4526 return (ENOSPC); 4527 } 4528 lun_number = be_lun->req_lun_id; 4529 } else { 4530 lun_number = ctl_ffz(ctl_softc->ctl_lun_mask, 0, CTL_MAX_LUNS); 4531 if (lun_number == -1) { 4532 mtx_unlock(&ctl_softc->ctl_lock); 4533 printf("ctl: can't allocate LUN, out of LUNs\n"); 4534 if (lun->flags & CTL_LUN_MALLOCED) 4535 free(lun, M_CTL); 4536 be_lun->lun_config_status(be_lun->be_lun, 4537 CTL_LUN_CONFIG_FAILURE); 4538 return (ENOSPC); 4539 } 4540 } 4541 ctl_set_mask(ctl_softc->ctl_lun_mask, lun_number); 4542 4543 mtx_init(&lun->lun_lock, "CTL LUN", NULL, MTX_DEF); 4544 lun->lun = lun_number; 4545 lun->be_lun = be_lun; 4546 /* 4547 * The processor LUN is always enabled. Disk LUNs come on line 4548 * disabled, and must be enabled by the backend. 4549 */ 4550 lun->flags |= CTL_LUN_DISABLED; 4551 lun->backend = be_lun->be; 4552 be_lun->ctl_lun = lun; 4553 be_lun->lun_id = lun_number; 4554 atomic_add_int(&be_lun->be->num_luns, 1); 4555 if (be_lun->flags & CTL_LUN_FLAG_EJECTED) 4556 lun->flags |= CTL_LUN_EJECTED; 4557 if (be_lun->flags & CTL_LUN_FLAG_NO_MEDIA) 4558 lun->flags |= CTL_LUN_NO_MEDIA; 4559 if (be_lun->flags & CTL_LUN_FLAG_STOPPED) 4560 lun->flags |= CTL_LUN_STOPPED; 4561 4562 if (be_lun->flags & CTL_LUN_FLAG_PRIMARY) 4563 lun->flags |= CTL_LUN_PRIMARY_SC; 4564 4565 value = ctl_get_opt(&be_lun->options, "removable"); 4566 if (value != NULL) { 4567 if (strcmp(value, "on") == 0) 4568 lun->flags |= CTL_LUN_REMOVABLE; 4569 } else if (be_lun->lun_type == T_CDROM) 4570 lun->flags |= CTL_LUN_REMOVABLE; 4571 4572 lun->ctl_softc = ctl_softc; 4573#ifdef CTL_TIME_IO 4574 lun->last_busy = getsbinuptime(); 4575#endif 4576 TAILQ_INIT(&lun->ooa_queue); 4577 TAILQ_INIT(&lun->blocked_queue); 4578 STAILQ_INIT(&lun->error_list); 4579 lun->ie_reported = 1; 4580 callout_init_mtx(&lun->ie_callout, &lun->lun_lock, 0); 4581 ctl_tpc_lun_init(lun); 4582 4583 /* 4584 * Initialize the mode and log page index. 4585 */ 4586 ctl_init_page_index(lun); 4587 ctl_init_log_page_index(lun); 4588 4589 /* 4590 * Now, before we insert this lun on the lun list, set the lun 4591 * inventory changed UA for all other luns. 4592 */ 4593 STAILQ_FOREACH(nlun, &ctl_softc->lun_list, links) { 4594 mtx_lock(&nlun->lun_lock); 4595 ctl_est_ua_all(nlun, -1, CTL_UA_LUN_CHANGE); 4596 mtx_unlock(&nlun->lun_lock); 4597 } 4598 4599 STAILQ_INSERT_TAIL(&ctl_softc->lun_list, lun, links); 4600 4601 ctl_softc->ctl_luns[lun_number] = lun; 4602 4603 ctl_softc->num_luns++; 4604 4605 /* Setup statistics gathering */ 4606 lun->stats.device_type = be_lun->lun_type; 4607 lun->stats.lun_number = lun_number; 4608 lun->stats.blocksize = be_lun->blocksize; 4609 if (be_lun->blocksize == 0) 4610 lun->stats.flags = CTL_LUN_STATS_NO_BLOCKSIZE; 4611 for (i = 0;i < CTL_MAX_PORTS;i++) 4612 lun->stats.ports[i].targ_port = i; 4613 4614 mtx_unlock(&ctl_softc->ctl_lock); 4615 4616 lun->be_lun->lun_config_status(lun->be_lun->be_lun, CTL_LUN_CONFIG_OK); 4617 return (0); 4618} 4619 4620/* 4621 * Delete a LUN. 4622 * Assumptions: 4623 * - LUN has already been marked invalid and any pending I/O has been taken 4624 * care of. 4625 */ 4626static int 4627ctl_free_lun(struct ctl_lun *lun) 4628{ 4629 struct ctl_softc *softc; 4630 struct ctl_lun *nlun; 4631 int i; 4632 4633 softc = lun->ctl_softc; 4634 4635 mtx_assert(&softc->ctl_lock, MA_OWNED); 4636 4637 STAILQ_REMOVE(&softc->lun_list, lun, ctl_lun, links); 4638 4639 ctl_clear_mask(softc->ctl_lun_mask, lun->lun); 4640 4641 softc->ctl_luns[lun->lun] = NULL; 4642 4643 if (!TAILQ_EMPTY(&lun->ooa_queue)) 4644 panic("Freeing a LUN %p with outstanding I/O!!\n", lun); 4645 4646 softc->num_luns--; 4647 4648 /* 4649 * Tell the backend to free resources, if this LUN has a backend. 4650 */ 4651 atomic_subtract_int(&lun->be_lun->be->num_luns, 1); 4652 lun->be_lun->lun_shutdown(lun->be_lun->be_lun); 4653 4654 lun->ie_reportcnt = UINT32_MAX; 4655 callout_drain(&lun->ie_callout); 4656 4657 ctl_tpc_lun_shutdown(lun); 4658 mtx_destroy(&lun->lun_lock); 4659 free(lun->lun_devid, M_CTL); 4660 for (i = 0; i < CTL_MAX_PORTS; i++) 4661 free(lun->pending_ua[i], M_CTL); 4662 for (i = 0; i < CTL_MAX_PORTS; i++) 4663 free(lun->pr_keys[i], M_CTL); 4664 free(lun->write_buffer, M_CTL); 4665 if (lun->flags & CTL_LUN_MALLOCED) 4666 free(lun, M_CTL); 4667 4668 STAILQ_FOREACH(nlun, &softc->lun_list, links) { 4669 mtx_lock(&nlun->lun_lock); 4670 ctl_est_ua_all(nlun, -1, CTL_UA_LUN_CHANGE); 4671 mtx_unlock(&nlun->lun_lock); 4672 } 4673 4674 return (0); 4675} 4676 4677static void 4678ctl_create_lun(struct ctl_be_lun *be_lun) 4679{ 4680 4681 /* 4682 * ctl_alloc_lun() should handle all potential failure cases. 4683 */ 4684 ctl_alloc_lun(control_softc, NULL, be_lun); 4685} 4686 4687int 4688ctl_add_lun(struct ctl_be_lun *be_lun) 4689{ 4690 struct ctl_softc *softc = control_softc; 4691 4692 mtx_lock(&softc->ctl_lock); 4693 STAILQ_INSERT_TAIL(&softc->pending_lun_queue, be_lun, links); 4694 mtx_unlock(&softc->ctl_lock); 4695 wakeup(&softc->pending_lun_queue); 4696 4697 return (0); 4698} 4699 4700int 4701ctl_enable_lun(struct ctl_be_lun *be_lun) 4702{ 4703 struct ctl_softc *softc; 4704 struct ctl_port *port, *nport; 4705 struct ctl_lun *lun; 4706 int retval; 4707 4708 lun = (struct ctl_lun *)be_lun->ctl_lun; 4709 softc = lun->ctl_softc; 4710 4711 mtx_lock(&softc->ctl_lock); 4712 mtx_lock(&lun->lun_lock); 4713 if ((lun->flags & CTL_LUN_DISABLED) == 0) { 4714 /* 4715 * eh? Why did we get called if the LUN is already 4716 * enabled? 4717 */ 4718 mtx_unlock(&lun->lun_lock); 4719 mtx_unlock(&softc->ctl_lock); 4720 return (0); 4721 } 4722 lun->flags &= ~CTL_LUN_DISABLED; 4723 mtx_unlock(&lun->lun_lock); 4724 4725 STAILQ_FOREACH_SAFE(port, &softc->port_list, links, nport) { 4726 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0 || 4727 port->lun_map != NULL || port->lun_enable == NULL) 4728 continue; 4729 4730 /* 4731 * Drop the lock while we call the FETD's enable routine. 4732 * This can lead to a callback into CTL (at least in the 4733 * case of the internal initiator frontend. 4734 */ 4735 mtx_unlock(&softc->ctl_lock); 4736 retval = port->lun_enable(port->targ_lun_arg, lun->lun); 4737 mtx_lock(&softc->ctl_lock); 4738 if (retval != 0) { 4739 printf("%s: FETD %s port %d returned error " 4740 "%d for lun_enable on lun %jd\n", 4741 __func__, port->port_name, port->targ_port, 4742 retval, (intmax_t)lun->lun); 4743 } 4744 } 4745 4746 mtx_unlock(&softc->ctl_lock); 4747 ctl_isc_announce_lun(lun); 4748 4749 return (0); 4750} 4751 4752int 4753ctl_disable_lun(struct ctl_be_lun *be_lun) 4754{ 4755 struct ctl_softc *softc; 4756 struct ctl_port *port; 4757 struct ctl_lun *lun; 4758 int retval; 4759 4760 lun = (struct ctl_lun *)be_lun->ctl_lun; 4761 softc = lun->ctl_softc; 4762 4763 mtx_lock(&softc->ctl_lock); 4764 mtx_lock(&lun->lun_lock); 4765 if (lun->flags & CTL_LUN_DISABLED) { 4766 mtx_unlock(&lun->lun_lock); 4767 mtx_unlock(&softc->ctl_lock); 4768 return (0); 4769 } 4770 lun->flags |= CTL_LUN_DISABLED; 4771 mtx_unlock(&lun->lun_lock); 4772 4773 STAILQ_FOREACH(port, &softc->port_list, links) { 4774 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0 || 4775 port->lun_map != NULL || port->lun_disable == NULL) 4776 continue; 4777 4778 /* 4779 * Drop the lock before we call the frontend's disable 4780 * routine, to avoid lock order reversals. 4781 * 4782 * XXX KDM what happens if the frontend list changes while 4783 * we're traversing it? It's unlikely, but should be handled. 4784 */ 4785 mtx_unlock(&softc->ctl_lock); 4786 retval = port->lun_disable(port->targ_lun_arg, lun->lun); 4787 mtx_lock(&softc->ctl_lock); 4788 if (retval != 0) { 4789 printf("%s: FETD %s port %d returned error " 4790 "%d for lun_disable on lun %jd\n", 4791 __func__, port->port_name, port->targ_port, 4792 retval, (intmax_t)lun->lun); 4793 } 4794 } 4795 4796 mtx_unlock(&softc->ctl_lock); 4797 ctl_isc_announce_lun(lun); 4798 4799 return (0); 4800} 4801 4802int 4803ctl_start_lun(struct ctl_be_lun *be_lun) 4804{ 4805 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 4806 4807 mtx_lock(&lun->lun_lock); 4808 lun->flags &= ~CTL_LUN_STOPPED; 4809 mtx_unlock(&lun->lun_lock); 4810 return (0); 4811} 4812 4813int 4814ctl_stop_lun(struct ctl_be_lun *be_lun) 4815{ 4816 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 4817 4818 mtx_lock(&lun->lun_lock); 4819 lun->flags |= CTL_LUN_STOPPED; 4820 mtx_unlock(&lun->lun_lock); 4821 return (0); 4822} 4823 4824int 4825ctl_lun_no_media(struct ctl_be_lun *be_lun) 4826{ 4827 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 4828 4829 mtx_lock(&lun->lun_lock); 4830 lun->flags |= CTL_LUN_NO_MEDIA; 4831 mtx_unlock(&lun->lun_lock); 4832 return (0); 4833} 4834 4835int 4836ctl_lun_has_media(struct ctl_be_lun *be_lun) 4837{ 4838 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 4839 union ctl_ha_msg msg; 4840 4841 mtx_lock(&lun->lun_lock); 4842 lun->flags &= ~(CTL_LUN_NO_MEDIA | CTL_LUN_EJECTED); 4843 if (lun->flags & CTL_LUN_REMOVABLE) 4844 ctl_est_ua_all(lun, -1, CTL_UA_MEDIUM_CHANGE); 4845 mtx_unlock(&lun->lun_lock); 4846 if ((lun->flags & CTL_LUN_REMOVABLE) && 4847 lun->ctl_softc->ha_mode == CTL_HA_MODE_XFER) { 4848 bzero(&msg.ua, sizeof(msg.ua)); 4849 msg.hdr.msg_type = CTL_MSG_UA; 4850 msg.hdr.nexus.initid = -1; 4851 msg.hdr.nexus.targ_port = -1; 4852 msg.hdr.nexus.targ_lun = lun->lun; 4853 msg.hdr.nexus.targ_mapped_lun = lun->lun; 4854 msg.ua.ua_all = 1; 4855 msg.ua.ua_set = 1; 4856 msg.ua.ua_type = CTL_UA_MEDIUM_CHANGE; 4857 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, sizeof(msg.ua), 4858 M_WAITOK); 4859 } 4860 return (0); 4861} 4862 4863int 4864ctl_lun_ejected(struct ctl_be_lun *be_lun) 4865{ 4866 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 4867 4868 mtx_lock(&lun->lun_lock); 4869 lun->flags |= CTL_LUN_EJECTED; 4870 mtx_unlock(&lun->lun_lock); 4871 return (0); 4872} 4873 4874int 4875ctl_lun_primary(struct ctl_be_lun *be_lun) 4876{ 4877 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 4878 4879 mtx_lock(&lun->lun_lock); 4880 lun->flags |= CTL_LUN_PRIMARY_SC; 4881 ctl_est_ua_all(lun, -1, CTL_UA_ASYM_ACC_CHANGE); 4882 mtx_unlock(&lun->lun_lock); 4883 ctl_isc_announce_lun(lun); 4884 return (0); 4885} 4886 4887int 4888ctl_lun_secondary(struct ctl_be_lun *be_lun) 4889{ 4890 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 4891 4892 mtx_lock(&lun->lun_lock); 4893 lun->flags &= ~CTL_LUN_PRIMARY_SC; 4894 ctl_est_ua_all(lun, -1, CTL_UA_ASYM_ACC_CHANGE); 4895 mtx_unlock(&lun->lun_lock); 4896 ctl_isc_announce_lun(lun); 4897 return (0); 4898} 4899 4900int 4901ctl_invalidate_lun(struct ctl_be_lun *be_lun) 4902{ 4903 struct ctl_softc *softc; 4904 struct ctl_lun *lun; 4905 4906 lun = (struct ctl_lun *)be_lun->ctl_lun; 4907 softc = lun->ctl_softc; 4908 4909 mtx_lock(&lun->lun_lock); 4910 4911 /* 4912 * The LUN needs to be disabled before it can be marked invalid. 4913 */ 4914 if ((lun->flags & CTL_LUN_DISABLED) == 0) { 4915 mtx_unlock(&lun->lun_lock); 4916 return (-1); 4917 } 4918 /* 4919 * Mark the LUN invalid. 4920 */ 4921 lun->flags |= CTL_LUN_INVALID; 4922 4923 /* 4924 * If there is nothing in the OOA queue, go ahead and free the LUN. 4925 * If we have something in the OOA queue, we'll free it when the 4926 * last I/O completes. 4927 */ 4928 if (TAILQ_EMPTY(&lun->ooa_queue)) { 4929 mtx_unlock(&lun->lun_lock); 4930 mtx_lock(&softc->ctl_lock); 4931 ctl_free_lun(lun); 4932 mtx_unlock(&softc->ctl_lock); 4933 } else 4934 mtx_unlock(&lun->lun_lock); 4935 4936 return (0); 4937} 4938 4939void 4940ctl_lun_capacity_changed(struct ctl_be_lun *be_lun) 4941{ 4942 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 4943 union ctl_ha_msg msg; 4944 4945 mtx_lock(&lun->lun_lock); 4946 ctl_est_ua_all(lun, -1, CTL_UA_CAPACITY_CHANGE); 4947 mtx_unlock(&lun->lun_lock); 4948 if (lun->ctl_softc->ha_mode == CTL_HA_MODE_XFER) { 4949 /* Send msg to other side. */ 4950 bzero(&msg.ua, sizeof(msg.ua)); 4951 msg.hdr.msg_type = CTL_MSG_UA; 4952 msg.hdr.nexus.initid = -1; 4953 msg.hdr.nexus.targ_port = -1; 4954 msg.hdr.nexus.targ_lun = lun->lun; 4955 msg.hdr.nexus.targ_mapped_lun = lun->lun; 4956 msg.ua.ua_all = 1; 4957 msg.ua.ua_set = 1; 4958 msg.ua.ua_type = CTL_UA_CAPACITY_CHANGE; 4959 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, sizeof(msg.ua), 4960 M_WAITOK); 4961 } 4962} 4963 4964/* 4965 * Backend "memory move is complete" callback for requests that never 4966 * make it down to say RAIDCore's configuration code. 4967 */ 4968int 4969ctl_config_move_done(union ctl_io *io) 4970{ 4971 int retval; 4972 4973 CTL_DEBUG_PRINT(("ctl_config_move_done\n")); 4974 KASSERT(io->io_hdr.io_type == CTL_IO_SCSI, 4975 ("Config I/O type isn't CTL_IO_SCSI (%d)!", io->io_hdr.io_type)); 4976 4977 if ((io->io_hdr.port_status != 0) && 4978 ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE || 4979 (io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS)) { 4980 /* 4981 * For hardware error sense keys, the sense key 4982 * specific value is defined to be a retry count, 4983 * but we use it to pass back an internal FETD 4984 * error code. XXX KDM Hopefully the FETD is only 4985 * using 16 bits for an error code, since that's 4986 * all the space we have in the sks field. 4987 */ 4988 ctl_set_internal_failure(&io->scsiio, 4989 /*sks_valid*/ 1, 4990 /*retry_count*/ 4991 io->io_hdr.port_status); 4992 } 4993 4994 if (ctl_debug & CTL_DEBUG_CDB_DATA) 4995 ctl_data_print(io); 4996 if (((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_IN) || 4997 ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE && 4998 (io->io_hdr.status & CTL_STATUS_MASK) != CTL_SUCCESS) || 4999 ((io->io_hdr.flags & CTL_FLAG_ABORT) != 0)) { 5000 /* 5001 * XXX KDM just assuming a single pointer here, and not a 5002 * S/G list. If we start using S/G lists for config data, 5003 * we'll need to know how to clean them up here as well. 5004 */ 5005 if (io->io_hdr.flags & CTL_FLAG_ALLOCATED) 5006 free(io->scsiio.kern_data_ptr, M_CTL); 5007 ctl_done(io); 5008 retval = CTL_RETVAL_COMPLETE; 5009 } else { 5010 /* 5011 * XXX KDM now we need to continue data movement. Some 5012 * options: 5013 * - call ctl_scsiio() again? We don't do this for data 5014 * writes, because for those at least we know ahead of 5015 * time where the write will go and how long it is. For 5016 * config writes, though, that information is largely 5017 * contained within the write itself, thus we need to 5018 * parse out the data again. 5019 * 5020 * - Call some other function once the data is in? 5021 */ 5022 5023 /* 5024 * XXX KDM call ctl_scsiio() again for now, and check flag 5025 * bits to see whether we're allocated or not. 5026 */ 5027 retval = ctl_scsiio(&io->scsiio); 5028 } 5029 return (retval); 5030} 5031 5032/* 5033 * This gets called by a backend driver when it is done with a 5034 * data_submit method. 5035 */ 5036void 5037ctl_data_submit_done(union ctl_io *io) 5038{ 5039 /* 5040 * If the IO_CONT flag is set, we need to call the supplied 5041 * function to continue processing the I/O, instead of completing 5042 * the I/O just yet. 5043 * 5044 * If there is an error, though, we don't want to keep processing. 5045 * Instead, just send status back to the initiator. 5046 */ 5047 if ((io->io_hdr.flags & CTL_FLAG_IO_CONT) && 5048 (io->io_hdr.flags & CTL_FLAG_ABORT) == 0 && 5049 ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE || 5050 (io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS)) { 5051 io->scsiio.io_cont(io); 5052 return; 5053 } 5054 ctl_done(io); 5055} 5056 5057/* 5058 * This gets called by a backend driver when it is done with a 5059 * configuration write. 5060 */ 5061void 5062ctl_config_write_done(union ctl_io *io) 5063{ 5064 uint8_t *buf; 5065 5066 /* 5067 * If the IO_CONT flag is set, we need to call the supplied 5068 * function to continue processing the I/O, instead of completing 5069 * the I/O just yet. 5070 * 5071 * If there is an error, though, we don't want to keep processing. 5072 * Instead, just send status back to the initiator. 5073 */ 5074 if ((io->io_hdr.flags & CTL_FLAG_IO_CONT) && 5075 (io->io_hdr.flags & CTL_FLAG_ABORT) == 0 && 5076 ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE || 5077 (io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS)) { 5078 io->scsiio.io_cont(io); 5079 return; 5080 } 5081 /* 5082 * Since a configuration write can be done for commands that actually 5083 * have data allocated, like write buffer, and commands that have 5084 * no data, like start/stop unit, we need to check here. 5085 */ 5086 if (io->io_hdr.flags & CTL_FLAG_ALLOCATED) 5087 buf = io->scsiio.kern_data_ptr; 5088 else 5089 buf = NULL; 5090 ctl_done(io); 5091 if (buf) 5092 free(buf, M_CTL); 5093} 5094 5095void 5096ctl_config_read_done(union ctl_io *io) 5097{ 5098 uint8_t *buf; 5099 5100 /* 5101 * If there is some error -- we are done, skip data transfer. 5102 */ 5103 if ((io->io_hdr.flags & CTL_FLAG_ABORT) != 0 || 5104 ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE && 5105 (io->io_hdr.status & CTL_STATUS_MASK) != CTL_SUCCESS)) { 5106 if (io->io_hdr.flags & CTL_FLAG_ALLOCATED) 5107 buf = io->scsiio.kern_data_ptr; 5108 else 5109 buf = NULL; 5110 ctl_done(io); 5111 if (buf) 5112 free(buf, M_CTL); 5113 return; 5114 } 5115 5116 /* 5117 * If the IO_CONT flag is set, we need to call the supplied 5118 * function to continue processing the I/O, instead of completing 5119 * the I/O just yet. 5120 */ 5121 if (io->io_hdr.flags & CTL_FLAG_IO_CONT) { 5122 io->scsiio.io_cont(io); 5123 return; 5124 } 5125 5126 ctl_datamove(io); 5127} 5128 5129/* 5130 * SCSI release command. 5131 */ 5132int 5133ctl_scsi_release(struct ctl_scsiio *ctsio) 5134{ 5135 struct ctl_lun *lun; 5136 uint32_t residx; 5137 5138 CTL_DEBUG_PRINT(("ctl_scsi_release\n")); 5139 5140 residx = ctl_get_initindex(&ctsio->io_hdr.nexus); 5141 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5142 5143 /* 5144 * XXX KDM right now, we only support LUN reservation. We don't 5145 * support 3rd party reservations, or extent reservations, which 5146 * might actually need the parameter list. If we've gotten this 5147 * far, we've got a LUN reservation. Anything else got kicked out 5148 * above. So, according to SPC, ignore the length. 5149 */ 5150 5151 mtx_lock(&lun->lun_lock); 5152 5153 /* 5154 * According to SPC, it is not an error for an intiator to attempt 5155 * to release a reservation on a LUN that isn't reserved, or that 5156 * is reserved by another initiator. The reservation can only be 5157 * released, though, by the initiator who made it or by one of 5158 * several reset type events. 5159 */ 5160 if ((lun->flags & CTL_LUN_RESERVED) && (lun->res_idx == residx)) 5161 lun->flags &= ~CTL_LUN_RESERVED; 5162 5163 mtx_unlock(&lun->lun_lock); 5164 5165 ctl_set_success(ctsio); 5166 ctl_done((union ctl_io *)ctsio); 5167 return (CTL_RETVAL_COMPLETE); 5168} 5169 5170int 5171ctl_scsi_reserve(struct ctl_scsiio *ctsio) 5172{ 5173 struct ctl_lun *lun; 5174 uint32_t residx; 5175 5176 CTL_DEBUG_PRINT(("ctl_reserve\n")); 5177 5178 residx = ctl_get_initindex(&ctsio->io_hdr.nexus); 5179 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5180 5181 /* 5182 * XXX KDM right now, we only support LUN reservation. We don't 5183 * support 3rd party reservations, or extent reservations, which 5184 * might actually need the parameter list. If we've gotten this 5185 * far, we've got a LUN reservation. Anything else got kicked out 5186 * above. So, according to SPC, ignore the length. 5187 */ 5188 5189 mtx_lock(&lun->lun_lock); 5190 if ((lun->flags & CTL_LUN_RESERVED) && (lun->res_idx != residx)) { 5191 ctl_set_reservation_conflict(ctsio); 5192 goto bailout; 5193 } 5194 5195 /* SPC-3 exceptions to SPC-2 RESERVE and RELEASE behavior. */ 5196 if (lun->flags & CTL_LUN_PR_RESERVED) { 5197 ctl_set_success(ctsio); 5198 goto bailout; 5199 } 5200 5201 lun->flags |= CTL_LUN_RESERVED; 5202 lun->res_idx = residx; 5203 ctl_set_success(ctsio); 5204 5205bailout: 5206 mtx_unlock(&lun->lun_lock); 5207 ctl_done((union ctl_io *)ctsio); 5208 return (CTL_RETVAL_COMPLETE); 5209} 5210 5211int 5212ctl_start_stop(struct ctl_scsiio *ctsio) 5213{ 5214 struct scsi_start_stop_unit *cdb; 5215 struct ctl_lun *lun; 5216 int retval; 5217 5218 CTL_DEBUG_PRINT(("ctl_start_stop\n")); 5219 5220 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5221 cdb = (struct scsi_start_stop_unit *)ctsio->cdb; 5222 5223 if ((cdb->how & SSS_PC_MASK) == 0) { 5224 if ((lun->flags & CTL_LUN_PR_RESERVED) && 5225 (cdb->how & SSS_START) == 0) { 5226 uint32_t residx; 5227 5228 residx = ctl_get_initindex(&ctsio->io_hdr.nexus); 5229 if (ctl_get_prkey(lun, residx) == 0 || 5230 (lun->pr_res_idx != residx && lun->pr_res_type < 4)) { 5231 5232 ctl_set_reservation_conflict(ctsio); 5233 ctl_done((union ctl_io *)ctsio); 5234 return (CTL_RETVAL_COMPLETE); 5235 } 5236 } 5237 5238 if ((cdb->how & SSS_LOEJ) && 5239 (lun->flags & CTL_LUN_REMOVABLE) == 0) { 5240 ctl_set_invalid_field(ctsio, 5241 /*sks_valid*/ 1, 5242 /*command*/ 1, 5243 /*field*/ 4, 5244 /*bit_valid*/ 1, 5245 /*bit*/ 1); 5246 ctl_done((union ctl_io *)ctsio); 5247 return (CTL_RETVAL_COMPLETE); 5248 } 5249 5250 if ((cdb->how & SSS_START) == 0 && (cdb->how & SSS_LOEJ) && 5251 lun->prevent_count > 0) { 5252 /* "Medium removal prevented" */ 5253 ctl_set_sense(ctsio, /*current_error*/ 1, 5254 /*sense_key*/(lun->flags & CTL_LUN_NO_MEDIA) ? 5255 SSD_KEY_NOT_READY : SSD_KEY_ILLEGAL_REQUEST, 5256 /*asc*/ 0x53, /*ascq*/ 0x02, SSD_ELEM_NONE); 5257 ctl_done((union ctl_io *)ctsio); 5258 return (CTL_RETVAL_COMPLETE); 5259 } 5260 } 5261 5262 retval = lun->backend->config_write((union ctl_io *)ctsio); 5263 return (retval); 5264} 5265 5266int 5267ctl_prevent_allow(struct ctl_scsiio *ctsio) 5268{ 5269 struct ctl_lun *lun; 5270 struct scsi_prevent *cdb; 5271 int retval; 5272 uint32_t initidx; 5273 5274 CTL_DEBUG_PRINT(("ctl_prevent_allow\n")); 5275 5276 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5277 cdb = (struct scsi_prevent *)ctsio->cdb; 5278 5279 if ((lun->flags & CTL_LUN_REMOVABLE) == 0) { 5280 ctl_set_invalid_opcode(ctsio); 5281 ctl_done((union ctl_io *)ctsio); 5282 return (CTL_RETVAL_COMPLETE); 5283 } 5284 5285 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 5286 mtx_lock(&lun->lun_lock); 5287 if ((cdb->how & PR_PREVENT) && 5288 ctl_is_set(lun->prevent, initidx) == 0) { 5289 ctl_set_mask(lun->prevent, initidx); 5290 lun->prevent_count++; 5291 } else if ((cdb->how & PR_PREVENT) == 0 && 5292 ctl_is_set(lun->prevent, initidx)) { 5293 ctl_clear_mask(lun->prevent, initidx); 5294 lun->prevent_count--; 5295 } 5296 mtx_unlock(&lun->lun_lock); 5297 retval = lun->backend->config_write((union ctl_io *)ctsio); 5298 return (retval); 5299} 5300 5301/* 5302 * We support the SYNCHRONIZE CACHE command (10 and 16 byte versions), but 5303 * we don't really do anything with the LBA and length fields if the user 5304 * passes them in. Instead we'll just flush out the cache for the entire 5305 * LUN. 5306 */ 5307int 5308ctl_sync_cache(struct ctl_scsiio *ctsio) 5309{ 5310 struct ctl_lun *lun; 5311 struct ctl_softc *softc; 5312 struct ctl_lba_len_flags *lbalen; 5313 uint64_t starting_lba; 5314 uint32_t block_count; 5315 int retval; 5316 uint8_t byte2; 5317 5318 CTL_DEBUG_PRINT(("ctl_sync_cache\n")); 5319 5320 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5321 softc = lun->ctl_softc; 5322 retval = 0; 5323 5324 switch (ctsio->cdb[0]) { 5325 case SYNCHRONIZE_CACHE: { 5326 struct scsi_sync_cache *cdb; 5327 cdb = (struct scsi_sync_cache *)ctsio->cdb; 5328 5329 starting_lba = scsi_4btoul(cdb->begin_lba); 5330 block_count = scsi_2btoul(cdb->lb_count); 5331 byte2 = cdb->byte2; 5332 break; 5333 } 5334 case SYNCHRONIZE_CACHE_16: { 5335 struct scsi_sync_cache_16 *cdb; 5336 cdb = (struct scsi_sync_cache_16 *)ctsio->cdb; 5337 5338 starting_lba = scsi_8btou64(cdb->begin_lba); 5339 block_count = scsi_4btoul(cdb->lb_count); 5340 byte2 = cdb->byte2; 5341 break; 5342 } 5343 default: 5344 ctl_set_invalid_opcode(ctsio); 5345 ctl_done((union ctl_io *)ctsio); 5346 goto bailout; 5347 break; /* NOTREACHED */ 5348 } 5349 5350 /* 5351 * We check the LBA and length, but don't do anything with them. 5352 * A SYNCHRONIZE CACHE will cause the entire cache for this lun to 5353 * get flushed. This check will just help satisfy anyone who wants 5354 * to see an error for an out of range LBA. 5355 */ 5356 if ((starting_lba + block_count) > (lun->be_lun->maxlba + 1)) { 5357 ctl_set_lba_out_of_range(ctsio, 5358 MAX(starting_lba, lun->be_lun->maxlba + 1)); 5359 ctl_done((union ctl_io *)ctsio); 5360 goto bailout; 5361 } 5362 5363 lbalen = (struct ctl_lba_len_flags *)&ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 5364 lbalen->lba = starting_lba; 5365 lbalen->len = block_count; 5366 lbalen->flags = byte2; 5367 retval = lun->backend->config_write((union ctl_io *)ctsio); 5368 5369bailout: 5370 return (retval); 5371} 5372 5373int 5374ctl_format(struct ctl_scsiio *ctsio) 5375{ 5376 struct scsi_format *cdb; 5377 struct ctl_lun *lun; 5378 int length, defect_list_len; 5379 5380 CTL_DEBUG_PRINT(("ctl_format\n")); 5381 5382 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5383 5384 cdb = (struct scsi_format *)ctsio->cdb; 5385 5386 length = 0; 5387 if (cdb->byte2 & SF_FMTDATA) { 5388 if (cdb->byte2 & SF_LONGLIST) 5389 length = sizeof(struct scsi_format_header_long); 5390 else 5391 length = sizeof(struct scsi_format_header_short); 5392 } 5393 5394 if (((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) 5395 && (length > 0)) { 5396 ctsio->kern_data_ptr = malloc(length, M_CTL, M_WAITOK); 5397 ctsio->kern_data_len = length; 5398 ctsio->kern_total_len = length; 5399 ctsio->kern_data_resid = 0; 5400 ctsio->kern_rel_offset = 0; 5401 ctsio->kern_sg_entries = 0; 5402 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5403 ctsio->be_move_done = ctl_config_move_done; 5404 ctl_datamove((union ctl_io *)ctsio); 5405 5406 return (CTL_RETVAL_COMPLETE); 5407 } 5408 5409 defect_list_len = 0; 5410 5411 if (cdb->byte2 & SF_FMTDATA) { 5412 if (cdb->byte2 & SF_LONGLIST) { 5413 struct scsi_format_header_long *header; 5414 5415 header = (struct scsi_format_header_long *) 5416 ctsio->kern_data_ptr; 5417 5418 defect_list_len = scsi_4btoul(header->defect_list_len); 5419 if (defect_list_len != 0) { 5420 ctl_set_invalid_field(ctsio, 5421 /*sks_valid*/ 1, 5422 /*command*/ 0, 5423 /*field*/ 2, 5424 /*bit_valid*/ 0, 5425 /*bit*/ 0); 5426 goto bailout; 5427 } 5428 } else { 5429 struct scsi_format_header_short *header; 5430 5431 header = (struct scsi_format_header_short *) 5432 ctsio->kern_data_ptr; 5433 5434 defect_list_len = scsi_2btoul(header->defect_list_len); 5435 if (defect_list_len != 0) { 5436 ctl_set_invalid_field(ctsio, 5437 /*sks_valid*/ 1, 5438 /*command*/ 0, 5439 /*field*/ 2, 5440 /*bit_valid*/ 0, 5441 /*bit*/ 0); 5442 goto bailout; 5443 } 5444 } 5445 } 5446 5447 ctl_set_success(ctsio); 5448bailout: 5449 5450 if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) { 5451 free(ctsio->kern_data_ptr, M_CTL); 5452 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED; 5453 } 5454 5455 ctl_done((union ctl_io *)ctsio); 5456 return (CTL_RETVAL_COMPLETE); 5457} 5458 5459int 5460ctl_read_buffer(struct ctl_scsiio *ctsio) 5461{ 5462 struct ctl_lun *lun; 5463 uint64_t buffer_offset; 5464 uint32_t len; 5465 uint8_t byte2; 5466 static uint8_t descr[4]; 5467 static uint8_t echo_descr[4] = { 0 }; 5468 5469 CTL_DEBUG_PRINT(("ctl_read_buffer\n")); 5470 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5471 switch (ctsio->cdb[0]) { 5472 case READ_BUFFER: { 5473 struct scsi_read_buffer *cdb; 5474 5475 cdb = (struct scsi_read_buffer *)ctsio->cdb; 5476 buffer_offset = scsi_3btoul(cdb->offset); 5477 len = scsi_3btoul(cdb->length); 5478 byte2 = cdb->byte2; 5479 break; 5480 } 5481 case READ_BUFFER_16: { 5482 struct scsi_read_buffer_16 *cdb; 5483 5484 cdb = (struct scsi_read_buffer_16 *)ctsio->cdb; 5485 buffer_offset = scsi_8btou64(cdb->offset); 5486 len = scsi_4btoul(cdb->length); 5487 byte2 = cdb->byte2; 5488 break; 5489 } 5490 default: /* This shouldn't happen. */ 5491 ctl_set_invalid_opcode(ctsio); 5492 ctl_done((union ctl_io *)ctsio); 5493 return (CTL_RETVAL_COMPLETE); 5494 } 5495 5496 if (buffer_offset > CTL_WRITE_BUFFER_SIZE || 5497 buffer_offset + len > CTL_WRITE_BUFFER_SIZE) { 5498 ctl_set_invalid_field(ctsio, 5499 /*sks_valid*/ 1, 5500 /*command*/ 1, 5501 /*field*/ 6, 5502 /*bit_valid*/ 0, 5503 /*bit*/ 0); 5504 ctl_done((union ctl_io *)ctsio); 5505 return (CTL_RETVAL_COMPLETE); 5506 } 5507 5508 if ((byte2 & RWB_MODE) == RWB_MODE_DESCR) { 5509 descr[0] = 0; 5510 scsi_ulto3b(CTL_WRITE_BUFFER_SIZE, &descr[1]); 5511 ctsio->kern_data_ptr = descr; 5512 len = min(len, sizeof(descr)); 5513 } else if ((byte2 & RWB_MODE) == RWB_MODE_ECHO_DESCR) { 5514 ctsio->kern_data_ptr = echo_descr; 5515 len = min(len, sizeof(echo_descr)); 5516 } else { 5517 if (lun->write_buffer == NULL) { 5518 lun->write_buffer = malloc(CTL_WRITE_BUFFER_SIZE, 5519 M_CTL, M_WAITOK); 5520 } 5521 ctsio->kern_data_ptr = lun->write_buffer + buffer_offset; 5522 } 5523 ctsio->kern_data_len = len; 5524 ctsio->kern_total_len = len; 5525 ctsio->kern_data_resid = 0; 5526 ctsio->kern_rel_offset = 0; 5527 ctsio->kern_sg_entries = 0; 5528 ctl_set_success(ctsio); 5529 ctsio->be_move_done = ctl_config_move_done; 5530 ctl_datamove((union ctl_io *)ctsio); 5531 return (CTL_RETVAL_COMPLETE); 5532} 5533 5534int 5535ctl_write_buffer(struct ctl_scsiio *ctsio) 5536{ 5537 struct scsi_write_buffer *cdb; 5538 struct ctl_lun *lun; 5539 int buffer_offset, len; 5540 5541 CTL_DEBUG_PRINT(("ctl_write_buffer\n")); 5542 5543 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5544 cdb = (struct scsi_write_buffer *)ctsio->cdb; 5545 5546 len = scsi_3btoul(cdb->length); 5547 buffer_offset = scsi_3btoul(cdb->offset); 5548 5549 if (buffer_offset + len > CTL_WRITE_BUFFER_SIZE) { 5550 ctl_set_invalid_field(ctsio, 5551 /*sks_valid*/ 1, 5552 /*command*/ 1, 5553 /*field*/ 6, 5554 /*bit_valid*/ 0, 5555 /*bit*/ 0); 5556 ctl_done((union ctl_io *)ctsio); 5557 return (CTL_RETVAL_COMPLETE); 5558 } 5559 5560 /* 5561 * If we've got a kernel request that hasn't been malloced yet, 5562 * malloc it and tell the caller the data buffer is here. 5563 */ 5564 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 5565 if (lun->write_buffer == NULL) { 5566 lun->write_buffer = malloc(CTL_WRITE_BUFFER_SIZE, 5567 M_CTL, M_WAITOK); 5568 } 5569 ctsio->kern_data_ptr = lun->write_buffer + buffer_offset; 5570 ctsio->kern_data_len = len; 5571 ctsio->kern_total_len = len; 5572 ctsio->kern_data_resid = 0; 5573 ctsio->kern_rel_offset = 0; 5574 ctsio->kern_sg_entries = 0; 5575 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5576 ctsio->be_move_done = ctl_config_move_done; 5577 ctl_datamove((union ctl_io *)ctsio); 5578 5579 return (CTL_RETVAL_COMPLETE); 5580 } 5581 5582 ctl_set_success(ctsio); 5583 ctl_done((union ctl_io *)ctsio); 5584 return (CTL_RETVAL_COMPLETE); 5585} 5586 5587int 5588ctl_write_same(struct ctl_scsiio *ctsio) 5589{ 5590 struct ctl_lun *lun; 5591 struct ctl_lba_len_flags *lbalen; 5592 uint64_t lba; 5593 uint32_t num_blocks; 5594 int len, retval; 5595 uint8_t byte2; 5596 5597 CTL_DEBUG_PRINT(("ctl_write_same\n")); 5598 5599 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5600 5601 switch (ctsio->cdb[0]) { 5602 case WRITE_SAME_10: { 5603 struct scsi_write_same_10 *cdb; 5604 5605 cdb = (struct scsi_write_same_10 *)ctsio->cdb; 5606 5607 lba = scsi_4btoul(cdb->addr); 5608 num_blocks = scsi_2btoul(cdb->length); 5609 byte2 = cdb->byte2; 5610 break; 5611 } 5612 case WRITE_SAME_16: { 5613 struct scsi_write_same_16 *cdb; 5614 5615 cdb = (struct scsi_write_same_16 *)ctsio->cdb; 5616 5617 lba = scsi_8btou64(cdb->addr); 5618 num_blocks = scsi_4btoul(cdb->length); 5619 byte2 = cdb->byte2; 5620 break; 5621 } 5622 default: 5623 /* 5624 * We got a command we don't support. This shouldn't 5625 * happen, commands should be filtered out above us. 5626 */ 5627 ctl_set_invalid_opcode(ctsio); 5628 ctl_done((union ctl_io *)ctsio); 5629 5630 return (CTL_RETVAL_COMPLETE); 5631 break; /* NOTREACHED */ 5632 } 5633 5634 /* ANCHOR flag can be used only together with UNMAP */ 5635 if ((byte2 & SWS_UNMAP) == 0 && (byte2 & SWS_ANCHOR) != 0) { 5636 ctl_set_invalid_field(ctsio, /*sks_valid*/ 1, 5637 /*command*/ 1, /*field*/ 1, /*bit_valid*/ 1, /*bit*/ 0); 5638 ctl_done((union ctl_io *)ctsio); 5639 return (CTL_RETVAL_COMPLETE); 5640 } 5641 5642 /* 5643 * The first check is to make sure we're in bounds, the second 5644 * check is to catch wrap-around problems. If the lba + num blocks 5645 * is less than the lba, then we've wrapped around and the block 5646 * range is invalid anyway. 5647 */ 5648 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 5649 || ((lba + num_blocks) < lba)) { 5650 ctl_set_lba_out_of_range(ctsio, 5651 MAX(lba, lun->be_lun->maxlba + 1)); 5652 ctl_done((union ctl_io *)ctsio); 5653 return (CTL_RETVAL_COMPLETE); 5654 } 5655 5656 /* Zero number of blocks means "to the last logical block" */ 5657 if (num_blocks == 0) { 5658 if ((lun->be_lun->maxlba + 1) - lba > UINT32_MAX) { 5659 ctl_set_invalid_field(ctsio, 5660 /*sks_valid*/ 0, 5661 /*command*/ 1, 5662 /*field*/ 0, 5663 /*bit_valid*/ 0, 5664 /*bit*/ 0); 5665 ctl_done((union ctl_io *)ctsio); 5666 return (CTL_RETVAL_COMPLETE); 5667 } 5668 num_blocks = (lun->be_lun->maxlba + 1) - lba; 5669 } 5670 5671 len = lun->be_lun->blocksize; 5672 5673 /* 5674 * If we've got a kernel request that hasn't been malloced yet, 5675 * malloc it and tell the caller the data buffer is here. 5676 */ 5677 if ((byte2 & SWS_NDOB) == 0 && 5678 (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 5679 ctsio->kern_data_ptr = malloc(len, M_CTL, M_WAITOK); 5680 ctsio->kern_data_len = len; 5681 ctsio->kern_total_len = len; 5682 ctsio->kern_data_resid = 0; 5683 ctsio->kern_rel_offset = 0; 5684 ctsio->kern_sg_entries = 0; 5685 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5686 ctsio->be_move_done = ctl_config_move_done; 5687 ctl_datamove((union ctl_io *)ctsio); 5688 5689 return (CTL_RETVAL_COMPLETE); 5690 } 5691 5692 lbalen = (struct ctl_lba_len_flags *)&ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 5693 lbalen->lba = lba; 5694 lbalen->len = num_blocks; 5695 lbalen->flags = byte2; 5696 retval = lun->backend->config_write((union ctl_io *)ctsio); 5697 5698 return (retval); 5699} 5700 5701int 5702ctl_unmap(struct ctl_scsiio *ctsio) 5703{ 5704 struct ctl_lun *lun; 5705 struct scsi_unmap *cdb; 5706 struct ctl_ptr_len_flags *ptrlen; 5707 struct scsi_unmap_header *hdr; 5708 struct scsi_unmap_desc *buf, *end, *endnz, *range; 5709 uint64_t lba; 5710 uint32_t num_blocks; 5711 int len, retval; 5712 uint8_t byte2; 5713 5714 CTL_DEBUG_PRINT(("ctl_unmap\n")); 5715 5716 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5717 cdb = (struct scsi_unmap *)ctsio->cdb; 5718 5719 len = scsi_2btoul(cdb->length); 5720 byte2 = cdb->byte2; 5721 5722 /* 5723 * If we've got a kernel request that hasn't been malloced yet, 5724 * malloc it and tell the caller the data buffer is here. 5725 */ 5726 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 5727 ctsio->kern_data_ptr = malloc(len, M_CTL, M_WAITOK); 5728 ctsio->kern_data_len = len; 5729 ctsio->kern_total_len = len; 5730 ctsio->kern_data_resid = 0; 5731 ctsio->kern_rel_offset = 0; 5732 ctsio->kern_sg_entries = 0; 5733 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5734 ctsio->be_move_done = ctl_config_move_done; 5735 ctl_datamove((union ctl_io *)ctsio); 5736 5737 return (CTL_RETVAL_COMPLETE); 5738 } 5739 5740 len = ctsio->kern_total_len - ctsio->kern_data_resid; 5741 hdr = (struct scsi_unmap_header *)ctsio->kern_data_ptr; 5742 if (len < sizeof (*hdr) || 5743 len < (scsi_2btoul(hdr->length) + sizeof(hdr->length)) || 5744 len < (scsi_2btoul(hdr->desc_length) + sizeof (*hdr)) || 5745 scsi_2btoul(hdr->desc_length) % sizeof(*buf) != 0) { 5746 ctl_set_invalid_field(ctsio, 5747 /*sks_valid*/ 0, 5748 /*command*/ 0, 5749 /*field*/ 0, 5750 /*bit_valid*/ 0, 5751 /*bit*/ 0); 5752 goto done; 5753 } 5754 len = scsi_2btoul(hdr->desc_length); 5755 buf = (struct scsi_unmap_desc *)(hdr + 1); 5756 end = buf + len / sizeof(*buf); 5757 5758 endnz = buf; 5759 for (range = buf; range < end; range++) { 5760 lba = scsi_8btou64(range->lba); 5761 num_blocks = scsi_4btoul(range->length); 5762 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 5763 || ((lba + num_blocks) < lba)) { 5764 ctl_set_lba_out_of_range(ctsio, 5765 MAX(lba, lun->be_lun->maxlba + 1)); 5766 ctl_done((union ctl_io *)ctsio); 5767 return (CTL_RETVAL_COMPLETE); 5768 } 5769 if (num_blocks != 0) 5770 endnz = range + 1; 5771 } 5772 5773 /* 5774 * Block backend can not handle zero last range. 5775 * Filter it out and return if there is nothing left. 5776 */ 5777 len = (uint8_t *)endnz - (uint8_t *)buf; 5778 if (len == 0) { 5779 ctl_set_success(ctsio); 5780 goto done; 5781 } 5782 5783 mtx_lock(&lun->lun_lock); 5784 ptrlen = (struct ctl_ptr_len_flags *) 5785 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 5786 ptrlen->ptr = (void *)buf; 5787 ptrlen->len = len; 5788 ptrlen->flags = byte2; 5789 ctl_check_blocked(lun); 5790 mtx_unlock(&lun->lun_lock); 5791 5792 retval = lun->backend->config_write((union ctl_io *)ctsio); 5793 return (retval); 5794 5795done: 5796 if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) { 5797 free(ctsio->kern_data_ptr, M_CTL); 5798 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED; 5799 } 5800 ctl_done((union ctl_io *)ctsio); 5801 return (CTL_RETVAL_COMPLETE); 5802} 5803 5804int 5805ctl_default_page_handler(struct ctl_scsiio *ctsio, 5806 struct ctl_page_index *page_index, uint8_t *page_ptr) 5807{ 5808 struct ctl_lun *lun; 5809 uint8_t *current_cp, *saved_cp; 5810 int set_ua; 5811 uint32_t initidx; 5812 5813 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5814 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 5815 set_ua = 0; 5816 5817 current_cp = (page_index->page_data + (page_index->page_len * 5818 CTL_PAGE_CURRENT)); 5819 saved_cp = (page_index->page_data + (page_index->page_len * 5820 CTL_PAGE_SAVED)); 5821 5822 mtx_lock(&lun->lun_lock); 5823 if (memcmp(current_cp, page_ptr, page_index->page_len)) { 5824 memcpy(current_cp, page_ptr, page_index->page_len); 5825 memcpy(saved_cp, page_ptr, page_index->page_len); 5826 set_ua = 1; 5827 } 5828 if (set_ua != 0) 5829 ctl_est_ua_all(lun, initidx, CTL_UA_MODE_CHANGE); 5830 mtx_unlock(&lun->lun_lock); 5831 if (set_ua) { 5832 ctl_isc_announce_mode(lun, 5833 ctl_get_initindex(&ctsio->io_hdr.nexus), 5834 page_index->page_code, page_index->subpage); 5835 } 5836 return (CTL_RETVAL_COMPLETE); 5837} 5838 5839static void 5840ctl_ie_timer(void *arg) 5841{ 5842 struct ctl_lun *lun = arg; 5843 uint64_t t; 5844 5845 if (lun->ie_asc == 0) 5846 return; 5847 5848 if (lun->MODE_IE.mrie == SIEP_MRIE_UA) 5849 ctl_est_ua_all(lun, -1, CTL_UA_IE); 5850 else 5851 lun->ie_reported = 0; 5852 5853 if (lun->ie_reportcnt < scsi_4btoul(lun->MODE_IE.report_count)) { 5854 lun->ie_reportcnt++; 5855 t = scsi_4btoul(lun->MODE_IE.interval_timer); 5856 if (t == 0 || t == UINT32_MAX) 5857 t = 3000; /* 5 min */ 5858 callout_schedule(&lun->ie_callout, t * hz / 10); 5859 } 5860} 5861 5862int 5863ctl_ie_page_handler(struct ctl_scsiio *ctsio, 5864 struct ctl_page_index *page_index, uint8_t *page_ptr) 5865{ 5866 struct scsi_info_exceptions_page *pg; 5867 struct ctl_lun *lun; 5868 uint64_t t; 5869 5870 (void)ctl_default_page_handler(ctsio, page_index, page_ptr); 5871 5872 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5873 pg = (struct scsi_info_exceptions_page *)page_ptr; 5874 mtx_lock(&lun->lun_lock); 5875 if (pg->info_flags & SIEP_FLAGS_TEST) { 5876 lun->ie_asc = 0x5d; 5877 lun->ie_ascq = 0xff; 5878 if (pg->mrie == SIEP_MRIE_UA) { 5879 ctl_est_ua_all(lun, -1, CTL_UA_IE); 5880 lun->ie_reported = 1; 5881 } else { 5882 ctl_clr_ua_all(lun, -1, CTL_UA_IE); 5883 lun->ie_reported = -1; 5884 } 5885 lun->ie_reportcnt = 1; 5886 if (lun->ie_reportcnt < scsi_4btoul(pg->report_count)) { 5887 lun->ie_reportcnt++; 5888 t = scsi_4btoul(pg->interval_timer); 5889 if (t == 0 || t == UINT32_MAX) 5890 t = 3000; /* 5 min */ 5891 callout_reset(&lun->ie_callout, t * hz / 10, 5892 ctl_ie_timer, lun); 5893 } 5894 } else { 5895 lun->ie_asc = 0; 5896 lun->ie_ascq = 0; 5897 lun->ie_reported = 1; 5898 ctl_clr_ua_all(lun, -1, CTL_UA_IE); 5899 lun->ie_reportcnt = UINT32_MAX; 5900 callout_stop(&lun->ie_callout); 5901 } 5902 mtx_unlock(&lun->lun_lock); 5903 return (CTL_RETVAL_COMPLETE); 5904} 5905 5906static int 5907ctl_do_mode_select(union ctl_io *io) 5908{ 5909 struct scsi_mode_page_header *page_header; 5910 struct ctl_page_index *page_index; 5911 struct ctl_scsiio *ctsio; 5912 int page_len, page_len_offset, page_len_size; 5913 union ctl_modepage_info *modepage_info; 5914 struct ctl_lun *lun; 5915 int *len_left, *len_used; 5916 int retval, i; 5917 5918 ctsio = &io->scsiio; 5919 page_index = NULL; 5920 page_len = 0; 5921 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5922 5923 modepage_info = (union ctl_modepage_info *) 5924 ctsio->io_hdr.ctl_private[CTL_PRIV_MODEPAGE].bytes; 5925 len_left = &modepage_info->header.len_left; 5926 len_used = &modepage_info->header.len_used; 5927 5928do_next_page: 5929 5930 page_header = (struct scsi_mode_page_header *) 5931 (ctsio->kern_data_ptr + *len_used); 5932 5933 if (*len_left == 0) { 5934 free(ctsio->kern_data_ptr, M_CTL); 5935 ctl_set_success(ctsio); 5936 ctl_done((union ctl_io *)ctsio); 5937 return (CTL_RETVAL_COMPLETE); 5938 } else if (*len_left < sizeof(struct scsi_mode_page_header)) { 5939 5940 free(ctsio->kern_data_ptr, M_CTL); 5941 ctl_set_param_len_error(ctsio); 5942 ctl_done((union ctl_io *)ctsio); 5943 return (CTL_RETVAL_COMPLETE); 5944 5945 } else if ((page_header->page_code & SMPH_SPF) 5946 && (*len_left < sizeof(struct scsi_mode_page_header_sp))) { 5947 5948 free(ctsio->kern_data_ptr, M_CTL); 5949 ctl_set_param_len_error(ctsio); 5950 ctl_done((union ctl_io *)ctsio); 5951 return (CTL_RETVAL_COMPLETE); 5952 } 5953 5954 5955 /* 5956 * XXX KDM should we do something with the block descriptor? 5957 */ 5958 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 5959 page_index = &lun->mode_pages.index[i]; 5960 if (lun->be_lun->lun_type == T_DIRECT && 5961 (page_index->page_flags & CTL_PAGE_FLAG_DIRECT) == 0) 5962 continue; 5963 if (lun->be_lun->lun_type == T_PROCESSOR && 5964 (page_index->page_flags & CTL_PAGE_FLAG_PROC) == 0) 5965 continue; 5966 if (lun->be_lun->lun_type == T_CDROM && 5967 (page_index->page_flags & CTL_PAGE_FLAG_CDROM) == 0) 5968 continue; 5969 5970 if ((page_index->page_code & SMPH_PC_MASK) != 5971 (page_header->page_code & SMPH_PC_MASK)) 5972 continue; 5973 5974 /* 5975 * If neither page has a subpage code, then we've got a 5976 * match. 5977 */ 5978 if (((page_index->page_code & SMPH_SPF) == 0) 5979 && ((page_header->page_code & SMPH_SPF) == 0)) { 5980 page_len = page_header->page_length; 5981 break; 5982 } 5983 5984 /* 5985 * If both pages have subpages, then the subpage numbers 5986 * have to match. 5987 */ 5988 if ((page_index->page_code & SMPH_SPF) 5989 && (page_header->page_code & SMPH_SPF)) { 5990 struct scsi_mode_page_header_sp *sph; 5991 5992 sph = (struct scsi_mode_page_header_sp *)page_header; 5993 if (page_index->subpage == sph->subpage) { 5994 page_len = scsi_2btoul(sph->page_length); 5995 break; 5996 } 5997 } 5998 } 5999 6000 /* 6001 * If we couldn't find the page, or if we don't have a mode select 6002 * handler for it, send back an error to the user. 6003 */ 6004 if ((i >= CTL_NUM_MODE_PAGES) 6005 || (page_index->select_handler == NULL)) { 6006 ctl_set_invalid_field(ctsio, 6007 /*sks_valid*/ 1, 6008 /*command*/ 0, 6009 /*field*/ *len_used, 6010 /*bit_valid*/ 0, 6011 /*bit*/ 0); 6012 free(ctsio->kern_data_ptr, M_CTL); 6013 ctl_done((union ctl_io *)ctsio); 6014 return (CTL_RETVAL_COMPLETE); 6015 } 6016 6017 if (page_index->page_code & SMPH_SPF) { 6018 page_len_offset = 2; 6019 page_len_size = 2; 6020 } else { 6021 page_len_size = 1; 6022 page_len_offset = 1; 6023 } 6024 6025 /* 6026 * If the length the initiator gives us isn't the one we specify in 6027 * the mode page header, or if they didn't specify enough data in 6028 * the CDB to avoid truncating this page, kick out the request. 6029 */ 6030 if (page_len != page_index->page_len - page_len_offset - page_len_size) { 6031 ctl_set_invalid_field(ctsio, 6032 /*sks_valid*/ 1, 6033 /*command*/ 0, 6034 /*field*/ *len_used + page_len_offset, 6035 /*bit_valid*/ 0, 6036 /*bit*/ 0); 6037 free(ctsio->kern_data_ptr, M_CTL); 6038 ctl_done((union ctl_io *)ctsio); 6039 return (CTL_RETVAL_COMPLETE); 6040 } 6041 if (*len_left < page_index->page_len) { 6042 free(ctsio->kern_data_ptr, M_CTL); 6043 ctl_set_param_len_error(ctsio); 6044 ctl_done((union ctl_io *)ctsio); 6045 return (CTL_RETVAL_COMPLETE); 6046 } 6047 6048 /* 6049 * Run through the mode page, checking to make sure that the bits 6050 * the user changed are actually legal for him to change. 6051 */ 6052 for (i = 0; i < page_index->page_len; i++) { 6053 uint8_t *user_byte, *change_mask, *current_byte; 6054 int bad_bit; 6055 int j; 6056 6057 user_byte = (uint8_t *)page_header + i; 6058 change_mask = page_index->page_data + 6059 (page_index->page_len * CTL_PAGE_CHANGEABLE) + i; 6060 current_byte = page_index->page_data + 6061 (page_index->page_len * CTL_PAGE_CURRENT) + i; 6062 6063 /* 6064 * Check to see whether the user set any bits in this byte 6065 * that he is not allowed to set. 6066 */ 6067 if ((*user_byte & ~(*change_mask)) == 6068 (*current_byte & ~(*change_mask))) 6069 continue; 6070 6071 /* 6072 * Go through bit by bit to determine which one is illegal. 6073 */ 6074 bad_bit = 0; 6075 for (j = 7; j >= 0; j--) { 6076 if ((((1 << i) & ~(*change_mask)) & *user_byte) != 6077 (((1 << i) & ~(*change_mask)) & *current_byte)) { 6078 bad_bit = i; 6079 break; 6080 } 6081 } 6082 ctl_set_invalid_field(ctsio, 6083 /*sks_valid*/ 1, 6084 /*command*/ 0, 6085 /*field*/ *len_used + i, 6086 /*bit_valid*/ 1, 6087 /*bit*/ bad_bit); 6088 free(ctsio->kern_data_ptr, M_CTL); 6089 ctl_done((union ctl_io *)ctsio); 6090 return (CTL_RETVAL_COMPLETE); 6091 } 6092 6093 /* 6094 * Decrement these before we call the page handler, since we may 6095 * end up getting called back one way or another before the handler 6096 * returns to this context. 6097 */ 6098 *len_left -= page_index->page_len; 6099 *len_used += page_index->page_len; 6100 6101 retval = page_index->select_handler(ctsio, page_index, 6102 (uint8_t *)page_header); 6103 6104 /* 6105 * If the page handler returns CTL_RETVAL_QUEUED, then we need to 6106 * wait until this queued command completes to finish processing 6107 * the mode page. If it returns anything other than 6108 * CTL_RETVAL_COMPLETE (e.g. CTL_RETVAL_ERROR), then it should have 6109 * already set the sense information, freed the data pointer, and 6110 * completed the io for us. 6111 */ 6112 if (retval != CTL_RETVAL_COMPLETE) 6113 goto bailout_no_done; 6114 6115 /* 6116 * If the initiator sent us more than one page, parse the next one. 6117 */ 6118 if (*len_left > 0) 6119 goto do_next_page; 6120 6121 ctl_set_success(ctsio); 6122 free(ctsio->kern_data_ptr, M_CTL); 6123 ctl_done((union ctl_io *)ctsio); 6124 6125bailout_no_done: 6126 6127 return (CTL_RETVAL_COMPLETE); 6128 6129} 6130 6131int 6132ctl_mode_select(struct ctl_scsiio *ctsio) 6133{ 6134 int param_len, pf, sp; 6135 int header_size, bd_len; 6136 union ctl_modepage_info *modepage_info; 6137 6138 switch (ctsio->cdb[0]) { 6139 case MODE_SELECT_6: { 6140 struct scsi_mode_select_6 *cdb; 6141 6142 cdb = (struct scsi_mode_select_6 *)ctsio->cdb; 6143 6144 pf = (cdb->byte2 & SMS_PF) ? 1 : 0; 6145 sp = (cdb->byte2 & SMS_SP) ? 1 : 0; 6146 param_len = cdb->length; 6147 header_size = sizeof(struct scsi_mode_header_6); 6148 break; 6149 } 6150 case MODE_SELECT_10: { 6151 struct scsi_mode_select_10 *cdb; 6152 6153 cdb = (struct scsi_mode_select_10 *)ctsio->cdb; 6154 6155 pf = (cdb->byte2 & SMS_PF) ? 1 : 0; 6156 sp = (cdb->byte2 & SMS_SP) ? 1 : 0; 6157 param_len = scsi_2btoul(cdb->length); 6158 header_size = sizeof(struct scsi_mode_header_10); 6159 break; 6160 } 6161 default: 6162 ctl_set_invalid_opcode(ctsio); 6163 ctl_done((union ctl_io *)ctsio); 6164 return (CTL_RETVAL_COMPLETE); 6165 } 6166 6167 /* 6168 * From SPC-3: 6169 * "A parameter list length of zero indicates that the Data-Out Buffer 6170 * shall be empty. This condition shall not be considered as an error." 6171 */ 6172 if (param_len == 0) { 6173 ctl_set_success(ctsio); 6174 ctl_done((union ctl_io *)ctsio); 6175 return (CTL_RETVAL_COMPLETE); 6176 } 6177 6178 /* 6179 * Since we'll hit this the first time through, prior to 6180 * allocation, we don't need to free a data buffer here. 6181 */ 6182 if (param_len < header_size) { 6183 ctl_set_param_len_error(ctsio); 6184 ctl_done((union ctl_io *)ctsio); 6185 return (CTL_RETVAL_COMPLETE); 6186 } 6187 6188 /* 6189 * Allocate the data buffer and grab the user's data. In theory, 6190 * we shouldn't have to sanity check the parameter list length here 6191 * because the maximum size is 64K. We should be able to malloc 6192 * that much without too many problems. 6193 */ 6194 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 6195 ctsio->kern_data_ptr = malloc(param_len, M_CTL, M_WAITOK); 6196 ctsio->kern_data_len = param_len; 6197 ctsio->kern_total_len = param_len; 6198 ctsio->kern_data_resid = 0; 6199 ctsio->kern_rel_offset = 0; 6200 ctsio->kern_sg_entries = 0; 6201 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6202 ctsio->be_move_done = ctl_config_move_done; 6203 ctl_datamove((union ctl_io *)ctsio); 6204 6205 return (CTL_RETVAL_COMPLETE); 6206 } 6207 6208 switch (ctsio->cdb[0]) { 6209 case MODE_SELECT_6: { 6210 struct scsi_mode_header_6 *mh6; 6211 6212 mh6 = (struct scsi_mode_header_6 *)ctsio->kern_data_ptr; 6213 bd_len = mh6->blk_desc_len; 6214 break; 6215 } 6216 case MODE_SELECT_10: { 6217 struct scsi_mode_header_10 *mh10; 6218 6219 mh10 = (struct scsi_mode_header_10 *)ctsio->kern_data_ptr; 6220 bd_len = scsi_2btoul(mh10->blk_desc_len); 6221 break; 6222 } 6223 default: 6224 panic("%s: Invalid CDB type %#x", __func__, ctsio->cdb[0]); 6225 } 6226 6227 if (param_len < (header_size + bd_len)) { 6228 free(ctsio->kern_data_ptr, M_CTL); 6229 ctl_set_param_len_error(ctsio); 6230 ctl_done((union ctl_io *)ctsio); 6231 return (CTL_RETVAL_COMPLETE); 6232 } 6233 6234 /* 6235 * Set the IO_CONT flag, so that if this I/O gets passed to 6236 * ctl_config_write_done(), it'll get passed back to 6237 * ctl_do_mode_select() for further processing, or completion if 6238 * we're all done. 6239 */ 6240 ctsio->io_hdr.flags |= CTL_FLAG_IO_CONT; 6241 ctsio->io_cont = ctl_do_mode_select; 6242 6243 modepage_info = (union ctl_modepage_info *) 6244 ctsio->io_hdr.ctl_private[CTL_PRIV_MODEPAGE].bytes; 6245 memset(modepage_info, 0, sizeof(*modepage_info)); 6246 modepage_info->header.len_left = param_len - header_size - bd_len; 6247 modepage_info->header.len_used = header_size + bd_len; 6248 6249 return (ctl_do_mode_select((union ctl_io *)ctsio)); 6250} 6251 6252int 6253ctl_mode_sense(struct ctl_scsiio *ctsio) 6254{ 6255 struct ctl_lun *lun; 6256 int pc, page_code, dbd, llba, subpage; 6257 int alloc_len, page_len, header_len, total_len; 6258 struct scsi_mode_block_descr *block_desc; 6259 struct ctl_page_index *page_index; 6260 6261 dbd = 0; 6262 llba = 0; 6263 block_desc = NULL; 6264 6265 CTL_DEBUG_PRINT(("ctl_mode_sense\n")); 6266 6267 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6268 switch (ctsio->cdb[0]) { 6269 case MODE_SENSE_6: { 6270 struct scsi_mode_sense_6 *cdb; 6271 6272 cdb = (struct scsi_mode_sense_6 *)ctsio->cdb; 6273 6274 header_len = sizeof(struct scsi_mode_hdr_6); 6275 if (cdb->byte2 & SMS_DBD) 6276 dbd = 1; 6277 else 6278 header_len += sizeof(struct scsi_mode_block_descr); 6279 6280 pc = (cdb->page & SMS_PAGE_CTRL_MASK) >> 6; 6281 page_code = cdb->page & SMS_PAGE_CODE; 6282 subpage = cdb->subpage; 6283 alloc_len = cdb->length; 6284 break; 6285 } 6286 case MODE_SENSE_10: { 6287 struct scsi_mode_sense_10 *cdb; 6288 6289 cdb = (struct scsi_mode_sense_10 *)ctsio->cdb; 6290 6291 header_len = sizeof(struct scsi_mode_hdr_10); 6292 6293 if (cdb->byte2 & SMS_DBD) 6294 dbd = 1; 6295 else 6296 header_len += sizeof(struct scsi_mode_block_descr); 6297 if (cdb->byte2 & SMS10_LLBAA) 6298 llba = 1; 6299 pc = (cdb->page & SMS_PAGE_CTRL_MASK) >> 6; 6300 page_code = cdb->page & SMS_PAGE_CODE; 6301 subpage = cdb->subpage; 6302 alloc_len = scsi_2btoul(cdb->length); 6303 break; 6304 } 6305 default: 6306 ctl_set_invalid_opcode(ctsio); 6307 ctl_done((union ctl_io *)ctsio); 6308 return (CTL_RETVAL_COMPLETE); 6309 break; /* NOTREACHED */ 6310 } 6311 6312 /* 6313 * We have to make a first pass through to calculate the size of 6314 * the pages that match the user's query. Then we allocate enough 6315 * memory to hold it, and actually copy the data into the buffer. 6316 */ 6317 switch (page_code) { 6318 case SMS_ALL_PAGES_PAGE: { 6319 u_int i; 6320 6321 page_len = 0; 6322 6323 /* 6324 * At the moment, values other than 0 and 0xff here are 6325 * reserved according to SPC-3. 6326 */ 6327 if ((subpage != SMS_SUBPAGE_PAGE_0) 6328 && (subpage != SMS_SUBPAGE_ALL)) { 6329 ctl_set_invalid_field(ctsio, 6330 /*sks_valid*/ 1, 6331 /*command*/ 1, 6332 /*field*/ 3, 6333 /*bit_valid*/ 0, 6334 /*bit*/ 0); 6335 ctl_done((union ctl_io *)ctsio); 6336 return (CTL_RETVAL_COMPLETE); 6337 } 6338 6339 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6340 page_index = &lun->mode_pages.index[i]; 6341 6342 /* Make sure the page is supported for this dev type */ 6343 if (lun->be_lun->lun_type == T_DIRECT && 6344 (page_index->page_flags & CTL_PAGE_FLAG_DIRECT) == 0) 6345 continue; 6346 if (lun->be_lun->lun_type == T_PROCESSOR && 6347 (page_index->page_flags & CTL_PAGE_FLAG_PROC) == 0) 6348 continue; 6349 if (lun->be_lun->lun_type == T_CDROM && 6350 (page_index->page_flags & CTL_PAGE_FLAG_CDROM) == 0) 6351 continue; 6352 6353 /* 6354 * We don't use this subpage if the user didn't 6355 * request all subpages. 6356 */ 6357 if ((page_index->subpage != 0) 6358 && (subpage == SMS_SUBPAGE_PAGE_0)) 6359 continue; 6360 6361#if 0 6362 printf("found page %#x len %d\n", 6363 page_index->page_code & SMPH_PC_MASK, 6364 page_index->page_len); 6365#endif 6366 page_len += page_index->page_len; 6367 } 6368 break; 6369 } 6370 default: { 6371 u_int i; 6372 6373 page_len = 0; 6374 6375 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6376 page_index = &lun->mode_pages.index[i]; 6377 6378 /* Make sure the page is supported for this dev type */ 6379 if (lun->be_lun->lun_type == T_DIRECT && 6380 (page_index->page_flags & CTL_PAGE_FLAG_DIRECT) == 0) 6381 continue; 6382 if (lun->be_lun->lun_type == T_PROCESSOR && 6383 (page_index->page_flags & CTL_PAGE_FLAG_PROC) == 0) 6384 continue; 6385 if (lun->be_lun->lun_type == T_CDROM && 6386 (page_index->page_flags & CTL_PAGE_FLAG_CDROM) == 0) 6387 continue; 6388 6389 /* Look for the right page code */ 6390 if ((page_index->page_code & SMPH_PC_MASK) != page_code) 6391 continue; 6392 6393 /* Look for the right subpage or the subpage wildcard*/ 6394 if ((page_index->subpage != subpage) 6395 && (subpage != SMS_SUBPAGE_ALL)) 6396 continue; 6397 6398#if 0 6399 printf("found page %#x len %d\n", 6400 page_index->page_code & SMPH_PC_MASK, 6401 page_index->page_len); 6402#endif 6403 6404 page_len += page_index->page_len; 6405 } 6406 6407 if (page_len == 0) { 6408 ctl_set_invalid_field(ctsio, 6409 /*sks_valid*/ 1, 6410 /*command*/ 1, 6411 /*field*/ 2, 6412 /*bit_valid*/ 1, 6413 /*bit*/ 5); 6414 ctl_done((union ctl_io *)ctsio); 6415 return (CTL_RETVAL_COMPLETE); 6416 } 6417 break; 6418 } 6419 } 6420 6421 total_len = header_len + page_len; 6422#if 0 6423 printf("header_len = %d, page_len = %d, total_len = %d\n", 6424 header_len, page_len, total_len); 6425#endif 6426 6427 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 6428 ctsio->kern_sg_entries = 0; 6429 ctsio->kern_data_resid = 0; 6430 ctsio->kern_rel_offset = 0; 6431 if (total_len < alloc_len) { 6432 ctsio->residual = alloc_len - total_len; 6433 ctsio->kern_data_len = total_len; 6434 ctsio->kern_total_len = total_len; 6435 } else { 6436 ctsio->residual = 0; 6437 ctsio->kern_data_len = alloc_len; 6438 ctsio->kern_total_len = alloc_len; 6439 } 6440 6441 switch (ctsio->cdb[0]) { 6442 case MODE_SENSE_6: { 6443 struct scsi_mode_hdr_6 *header; 6444 6445 header = (struct scsi_mode_hdr_6 *)ctsio->kern_data_ptr; 6446 6447 header->datalen = MIN(total_len - 1, 254); 6448 if (lun->be_lun->lun_type == T_DIRECT) { 6449 header->dev_specific = 0x10; /* DPOFUA */ 6450 if ((lun->be_lun->flags & CTL_LUN_FLAG_READONLY) || 6451 (lun->MODE_CTRL.eca_and_aen & SCP_SWP) != 0) 6452 header->dev_specific |= 0x80; /* WP */ 6453 } 6454 if (dbd) 6455 header->block_descr_len = 0; 6456 else 6457 header->block_descr_len = 6458 sizeof(struct scsi_mode_block_descr); 6459 block_desc = (struct scsi_mode_block_descr *)&header[1]; 6460 break; 6461 } 6462 case MODE_SENSE_10: { 6463 struct scsi_mode_hdr_10 *header; 6464 int datalen; 6465 6466 header = (struct scsi_mode_hdr_10 *)ctsio->kern_data_ptr; 6467 6468 datalen = MIN(total_len - 2, 65533); 6469 scsi_ulto2b(datalen, header->datalen); 6470 if (lun->be_lun->lun_type == T_DIRECT) { 6471 header->dev_specific = 0x10; /* DPOFUA */ 6472 if ((lun->be_lun->flags & CTL_LUN_FLAG_READONLY) || 6473 (lun->MODE_CTRL.eca_and_aen & SCP_SWP) != 0) 6474 header->dev_specific |= 0x80; /* WP */ 6475 } 6476 if (dbd) 6477 scsi_ulto2b(0, header->block_descr_len); 6478 else 6479 scsi_ulto2b(sizeof(struct scsi_mode_block_descr), 6480 header->block_descr_len); 6481 block_desc = (struct scsi_mode_block_descr *)&header[1]; 6482 break; 6483 } 6484 default: 6485 panic("%s: Invalid CDB type %#x", __func__, ctsio->cdb[0]); 6486 } 6487 6488 /* 6489 * If we've got a disk, use its blocksize in the block 6490 * descriptor. Otherwise, just set it to 0. 6491 */ 6492 if (dbd == 0) { 6493 if (lun->be_lun->lun_type == T_DIRECT) 6494 scsi_ulto3b(lun->be_lun->blocksize, 6495 block_desc->block_len); 6496 else 6497 scsi_ulto3b(0, block_desc->block_len); 6498 } 6499 6500 switch (page_code) { 6501 case SMS_ALL_PAGES_PAGE: { 6502 int i, data_used; 6503 6504 data_used = header_len; 6505 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6506 struct ctl_page_index *page_index; 6507 6508 page_index = &lun->mode_pages.index[i]; 6509 if (lun->be_lun->lun_type == T_DIRECT && 6510 (page_index->page_flags & CTL_PAGE_FLAG_DIRECT) == 0) 6511 continue; 6512 if (lun->be_lun->lun_type == T_PROCESSOR && 6513 (page_index->page_flags & CTL_PAGE_FLAG_PROC) == 0) 6514 continue; 6515 if (lun->be_lun->lun_type == T_CDROM && 6516 (page_index->page_flags & CTL_PAGE_FLAG_CDROM) == 0) 6517 continue; 6518 6519 /* 6520 * We don't use this subpage if the user didn't 6521 * request all subpages. We already checked (above) 6522 * to make sure the user only specified a subpage 6523 * of 0 or 0xff in the SMS_ALL_PAGES_PAGE case. 6524 */ 6525 if ((page_index->subpage != 0) 6526 && (subpage == SMS_SUBPAGE_PAGE_0)) 6527 continue; 6528 6529 /* 6530 * Call the handler, if it exists, to update the 6531 * page to the latest values. 6532 */ 6533 if (page_index->sense_handler != NULL) 6534 page_index->sense_handler(ctsio, page_index,pc); 6535 6536 memcpy(ctsio->kern_data_ptr + data_used, 6537 page_index->page_data + 6538 (page_index->page_len * pc), 6539 page_index->page_len); 6540 data_used += page_index->page_len; 6541 } 6542 break; 6543 } 6544 default: { 6545 int i, data_used; 6546 6547 data_used = header_len; 6548 6549 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6550 struct ctl_page_index *page_index; 6551 6552 page_index = &lun->mode_pages.index[i]; 6553 6554 /* Look for the right page code */ 6555 if ((page_index->page_code & SMPH_PC_MASK) != page_code) 6556 continue; 6557 6558 /* Look for the right subpage or the subpage wildcard*/ 6559 if ((page_index->subpage != subpage) 6560 && (subpage != SMS_SUBPAGE_ALL)) 6561 continue; 6562 6563 /* Make sure the page is supported for this dev type */ 6564 if (lun->be_lun->lun_type == T_DIRECT && 6565 (page_index->page_flags & CTL_PAGE_FLAG_DIRECT) == 0) 6566 continue; 6567 if (lun->be_lun->lun_type == T_PROCESSOR && 6568 (page_index->page_flags & CTL_PAGE_FLAG_PROC) == 0) 6569 continue; 6570 if (lun->be_lun->lun_type == T_CDROM && 6571 (page_index->page_flags & CTL_PAGE_FLAG_CDROM) == 0) 6572 continue; 6573 6574 /* 6575 * Call the handler, if it exists, to update the 6576 * page to the latest values. 6577 */ 6578 if (page_index->sense_handler != NULL) 6579 page_index->sense_handler(ctsio, page_index,pc); 6580 6581 memcpy(ctsio->kern_data_ptr + data_used, 6582 page_index->page_data + 6583 (page_index->page_len * pc), 6584 page_index->page_len); 6585 data_used += page_index->page_len; 6586 } 6587 break; 6588 } 6589 } 6590 6591 ctl_set_success(ctsio); 6592 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6593 ctsio->be_move_done = ctl_config_move_done; 6594 ctl_datamove((union ctl_io *)ctsio); 6595 return (CTL_RETVAL_COMPLETE); 6596} 6597 6598int 6599ctl_lbp_log_sense_handler(struct ctl_scsiio *ctsio, 6600 struct ctl_page_index *page_index, 6601 int pc) 6602{ 6603 struct ctl_lun *lun; 6604 struct scsi_log_param_header *phdr; 6605 uint8_t *data; 6606 uint64_t val; 6607 6608 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6609 data = page_index->page_data; 6610 6611 if (lun->backend->lun_attr != NULL && 6612 (val = lun->backend->lun_attr(lun->be_lun->be_lun, "blocksavail")) 6613 != UINT64_MAX) { 6614 phdr = (struct scsi_log_param_header *)data; 6615 scsi_ulto2b(0x0001, phdr->param_code); 6616 phdr->param_control = SLP_LBIN | SLP_LP; 6617 phdr->param_len = 8; 6618 data = (uint8_t *)(phdr + 1); 6619 scsi_ulto4b(val >> CTL_LBP_EXPONENT, data); 6620 data[4] = 0x02; /* per-pool */ 6621 data += phdr->param_len; 6622 } 6623 6624 if (lun->backend->lun_attr != NULL && 6625 (val = lun->backend->lun_attr(lun->be_lun->be_lun, "blocksused")) 6626 != UINT64_MAX) { 6627 phdr = (struct scsi_log_param_header *)data; 6628 scsi_ulto2b(0x0002, phdr->param_code); 6629 phdr->param_control = SLP_LBIN | SLP_LP; 6630 phdr->param_len = 8; 6631 data = (uint8_t *)(phdr + 1); 6632 scsi_ulto4b(val >> CTL_LBP_EXPONENT, data); 6633 data[4] = 0x01; /* per-LUN */ 6634 data += phdr->param_len; 6635 } 6636 6637 if (lun->backend->lun_attr != NULL && 6638 (val = lun->backend->lun_attr(lun->be_lun->be_lun, "poolblocksavail")) 6639 != UINT64_MAX) { 6640 phdr = (struct scsi_log_param_header *)data; 6641 scsi_ulto2b(0x00f1, phdr->param_code); 6642 phdr->param_control = SLP_LBIN | SLP_LP; 6643 phdr->param_len = 8; 6644 data = (uint8_t *)(phdr + 1); 6645 scsi_ulto4b(val >> CTL_LBP_EXPONENT, data); 6646 data[4] = 0x02; /* per-pool */ 6647 data += phdr->param_len; 6648 } 6649 6650 if (lun->backend->lun_attr != NULL && 6651 (val = lun->backend->lun_attr(lun->be_lun->be_lun, "poolblocksused")) 6652 != UINT64_MAX) { 6653 phdr = (struct scsi_log_param_header *)data; 6654 scsi_ulto2b(0x00f2, phdr->param_code); 6655 phdr->param_control = SLP_LBIN | SLP_LP; 6656 phdr->param_len = 8; 6657 data = (uint8_t *)(phdr + 1); 6658 scsi_ulto4b(val >> CTL_LBP_EXPONENT, data); 6659 data[4] = 0x02; /* per-pool */ 6660 data += phdr->param_len; 6661 } 6662 6663 page_index->page_len = data - page_index->page_data; 6664 return (0); 6665} 6666 6667int 6668ctl_sap_log_sense_handler(struct ctl_scsiio *ctsio, 6669 struct ctl_page_index *page_index, 6670 int pc) 6671{ 6672 struct ctl_lun *lun; 6673 struct stat_page *data; 6674 uint64_t rn, wn, rb, wb; 6675 struct bintime rt, wt; 6676 int i; 6677 6678 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6679 data = (struct stat_page *)page_index->page_data; 6680 6681 scsi_ulto2b(SLP_SAP, data->sap.hdr.param_code); 6682 data->sap.hdr.param_control = SLP_LBIN; 6683 data->sap.hdr.param_len = sizeof(struct scsi_log_stat_and_perf) - 6684 sizeof(struct scsi_log_param_header); 6685 rn = wn = rb = wb = 0; 6686 bintime_clear(&rt); 6687 bintime_clear(&wt); 6688 for (i = 0; i < CTL_MAX_PORTS; i++) { 6689 rn += lun->stats.ports[i].operations[CTL_STATS_READ]; 6690 wn += lun->stats.ports[i].operations[CTL_STATS_WRITE]; 6691 rb += lun->stats.ports[i].bytes[CTL_STATS_READ]; 6692 wb += lun->stats.ports[i].bytes[CTL_STATS_WRITE]; 6693 bintime_add(&rt, &lun->stats.ports[i].time[CTL_STATS_READ]); 6694 bintime_add(&wt, &lun->stats.ports[i].time[CTL_STATS_WRITE]); 6695 } 6696 scsi_u64to8b(rn, data->sap.read_num); 6697 scsi_u64to8b(wn, data->sap.write_num); 6698 if (lun->stats.blocksize > 0) { 6699 scsi_u64to8b(wb / lun->stats.blocksize, 6700 data->sap.recvieved_lba); 6701 scsi_u64to8b(rb / lun->stats.blocksize, 6702 data->sap.transmitted_lba); 6703 } 6704 scsi_u64to8b((uint64_t)rt.sec * 1000 + rt.frac / (UINT64_MAX / 1000), 6705 data->sap.read_int); 6706 scsi_u64to8b((uint64_t)wt.sec * 1000 + wt.frac / (UINT64_MAX / 1000), 6707 data->sap.write_int); 6708 scsi_u64to8b(0, data->sap.weighted_num); 6709 scsi_u64to8b(0, data->sap.weighted_int); 6710 scsi_ulto2b(SLP_IT, data->it.hdr.param_code); 6711 data->it.hdr.param_control = SLP_LBIN; 6712 data->it.hdr.param_len = sizeof(struct scsi_log_idle_time) - 6713 sizeof(struct scsi_log_param_header); 6714#ifdef CTL_TIME_IO 6715 scsi_u64to8b(lun->idle_time / SBT_1MS, data->it.idle_int); 6716#endif 6717 scsi_ulto2b(SLP_TI, data->ti.hdr.param_code); 6718 data->it.hdr.param_control = SLP_LBIN; 6719 data->ti.hdr.param_len = sizeof(struct scsi_log_time_interval) - 6720 sizeof(struct scsi_log_param_header); 6721 scsi_ulto4b(3, data->ti.exponent); 6722 scsi_ulto4b(1, data->ti.integer); 6723 return (0); 6724} 6725 6726int 6727ctl_ie_log_sense_handler(struct ctl_scsiio *ctsio, 6728 struct ctl_page_index *page_index, 6729 int pc) 6730{ 6731 struct ctl_lun *lun; 6732 struct scsi_log_informational_exceptions *data; 6733 6734 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6735 data = (struct scsi_log_informational_exceptions *)page_index->page_data; 6736 6737 scsi_ulto2b(SLP_IE_GEN, data->hdr.param_code); 6738 data->hdr.param_control = SLP_LBIN; 6739 data->hdr.param_len = sizeof(struct scsi_log_informational_exceptions) - 6740 sizeof(struct scsi_log_param_header); 6741 data->ie_asc = lun->ie_asc; 6742 data->ie_ascq = lun->ie_ascq; 6743 data->temperature = 0xff; 6744 return (0); 6745} 6746 6747int 6748ctl_log_sense(struct ctl_scsiio *ctsio) 6749{ 6750 struct ctl_lun *lun; 6751 int i, pc, page_code, subpage; 6752 int alloc_len, total_len; 6753 struct ctl_page_index *page_index; 6754 struct scsi_log_sense *cdb; 6755 struct scsi_log_header *header; 6756 6757 CTL_DEBUG_PRINT(("ctl_log_sense\n")); 6758 6759 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6760 cdb = (struct scsi_log_sense *)ctsio->cdb; 6761 pc = (cdb->page & SLS_PAGE_CTRL_MASK) >> 6; 6762 page_code = cdb->page & SLS_PAGE_CODE; 6763 subpage = cdb->subpage; 6764 alloc_len = scsi_2btoul(cdb->length); 6765 6766 page_index = NULL; 6767 for (i = 0; i < CTL_NUM_LOG_PAGES; i++) { 6768 page_index = &lun->log_pages.index[i]; 6769 6770 /* Look for the right page code */ 6771 if ((page_index->page_code & SL_PAGE_CODE) != page_code) 6772 continue; 6773 6774 /* Look for the right subpage or the subpage wildcard*/ 6775 if (page_index->subpage != subpage) 6776 continue; 6777 6778 break; 6779 } 6780 if (i >= CTL_NUM_LOG_PAGES) { 6781 ctl_set_invalid_field(ctsio, 6782 /*sks_valid*/ 1, 6783 /*command*/ 1, 6784 /*field*/ 2, 6785 /*bit_valid*/ 0, 6786 /*bit*/ 0); 6787 ctl_done((union ctl_io *)ctsio); 6788 return (CTL_RETVAL_COMPLETE); 6789 } 6790 6791 total_len = sizeof(struct scsi_log_header) + page_index->page_len; 6792 6793 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 6794 ctsio->kern_sg_entries = 0; 6795 ctsio->kern_data_resid = 0; 6796 ctsio->kern_rel_offset = 0; 6797 if (total_len < alloc_len) { 6798 ctsio->residual = alloc_len - total_len; 6799 ctsio->kern_data_len = total_len; 6800 ctsio->kern_total_len = total_len; 6801 } else { 6802 ctsio->residual = 0; 6803 ctsio->kern_data_len = alloc_len; 6804 ctsio->kern_total_len = alloc_len; 6805 } 6806 6807 header = (struct scsi_log_header *)ctsio->kern_data_ptr; 6808 header->page = page_index->page_code; 6809 if (page_index->page_code == SLS_LOGICAL_BLOCK_PROVISIONING) 6810 header->page |= SL_DS; 6811 if (page_index->subpage) { 6812 header->page |= SL_SPF; 6813 header->subpage = page_index->subpage; 6814 } 6815 scsi_ulto2b(page_index->page_len, header->datalen); 6816 6817 /* 6818 * Call the handler, if it exists, to update the 6819 * page to the latest values. 6820 */ 6821 if (page_index->sense_handler != NULL) 6822 page_index->sense_handler(ctsio, page_index, pc); 6823 6824 memcpy(header + 1, page_index->page_data, page_index->page_len); 6825 6826 ctl_set_success(ctsio); 6827 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6828 ctsio->be_move_done = ctl_config_move_done; 6829 ctl_datamove((union ctl_io *)ctsio); 6830 return (CTL_RETVAL_COMPLETE); 6831} 6832 6833int 6834ctl_read_capacity(struct ctl_scsiio *ctsio) 6835{ 6836 struct scsi_read_capacity *cdb; 6837 struct scsi_read_capacity_data *data; 6838 struct ctl_lun *lun; 6839 uint32_t lba; 6840 6841 CTL_DEBUG_PRINT(("ctl_read_capacity\n")); 6842 6843 cdb = (struct scsi_read_capacity *)ctsio->cdb; 6844 6845 lba = scsi_4btoul(cdb->addr); 6846 if (((cdb->pmi & SRC_PMI) == 0) 6847 && (lba != 0)) { 6848 ctl_set_invalid_field(/*ctsio*/ ctsio, 6849 /*sks_valid*/ 1, 6850 /*command*/ 1, 6851 /*field*/ 2, 6852 /*bit_valid*/ 0, 6853 /*bit*/ 0); 6854 ctl_done((union ctl_io *)ctsio); 6855 return (CTL_RETVAL_COMPLETE); 6856 } 6857 6858 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6859 6860 ctsio->kern_data_ptr = malloc(sizeof(*data), M_CTL, M_WAITOK | M_ZERO); 6861 data = (struct scsi_read_capacity_data *)ctsio->kern_data_ptr; 6862 ctsio->residual = 0; 6863 ctsio->kern_data_len = sizeof(*data); 6864 ctsio->kern_total_len = sizeof(*data); 6865 ctsio->kern_data_resid = 0; 6866 ctsio->kern_rel_offset = 0; 6867 ctsio->kern_sg_entries = 0; 6868 6869 /* 6870 * If the maximum LBA is greater than 0xfffffffe, the user must 6871 * issue a SERVICE ACTION IN (16) command, with the read capacity 6872 * serivce action set. 6873 */ 6874 if (lun->be_lun->maxlba > 0xfffffffe) 6875 scsi_ulto4b(0xffffffff, data->addr); 6876 else 6877 scsi_ulto4b(lun->be_lun->maxlba, data->addr); 6878 6879 /* 6880 * XXX KDM this may not be 512 bytes... 6881 */ 6882 scsi_ulto4b(lun->be_lun->blocksize, data->length); 6883 6884 ctl_set_success(ctsio); 6885 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6886 ctsio->be_move_done = ctl_config_move_done; 6887 ctl_datamove((union ctl_io *)ctsio); 6888 return (CTL_RETVAL_COMPLETE); 6889} 6890 6891int 6892ctl_read_capacity_16(struct ctl_scsiio *ctsio) 6893{ 6894 struct scsi_read_capacity_16 *cdb; 6895 struct scsi_read_capacity_data_long *data; 6896 struct ctl_lun *lun; 6897 uint64_t lba; 6898 uint32_t alloc_len; 6899 6900 CTL_DEBUG_PRINT(("ctl_read_capacity_16\n")); 6901 6902 cdb = (struct scsi_read_capacity_16 *)ctsio->cdb; 6903 6904 alloc_len = scsi_4btoul(cdb->alloc_len); 6905 lba = scsi_8btou64(cdb->addr); 6906 6907 if ((cdb->reladr & SRC16_PMI) 6908 && (lba != 0)) { 6909 ctl_set_invalid_field(/*ctsio*/ 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 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6920 6921 ctsio->kern_data_ptr = malloc(sizeof(*data), M_CTL, M_WAITOK | M_ZERO); 6922 data = (struct scsi_read_capacity_data_long *)ctsio->kern_data_ptr; 6923 6924 if (sizeof(*data) < alloc_len) { 6925 ctsio->residual = alloc_len - sizeof(*data); 6926 ctsio->kern_data_len = sizeof(*data); 6927 ctsio->kern_total_len = sizeof(*data); 6928 } else { 6929 ctsio->residual = 0; 6930 ctsio->kern_data_len = alloc_len; 6931 ctsio->kern_total_len = alloc_len; 6932 } 6933 ctsio->kern_data_resid = 0; 6934 ctsio->kern_rel_offset = 0; 6935 ctsio->kern_sg_entries = 0; 6936 6937 scsi_u64to8b(lun->be_lun->maxlba, data->addr); 6938 /* XXX KDM this may not be 512 bytes... */ 6939 scsi_ulto4b(lun->be_lun->blocksize, data->length); 6940 data->prot_lbppbe = lun->be_lun->pblockexp & SRC16_LBPPBE; 6941 scsi_ulto2b(lun->be_lun->pblockoff & SRC16_LALBA_A, data->lalba_lbp); 6942 if (lun->be_lun->flags & CTL_LUN_FLAG_UNMAP) 6943 data->lalba_lbp[0] |= SRC16_LBPME | SRC16_LBPRZ; 6944 6945 ctl_set_success(ctsio); 6946 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6947 ctsio->be_move_done = ctl_config_move_done; 6948 ctl_datamove((union ctl_io *)ctsio); 6949 return (CTL_RETVAL_COMPLETE); 6950} 6951 6952int 6953ctl_get_lba_status(struct ctl_scsiio *ctsio) 6954{ 6955 struct scsi_get_lba_status *cdb; 6956 struct scsi_get_lba_status_data *data; 6957 struct ctl_lun *lun; 6958 struct ctl_lba_len_flags *lbalen; 6959 uint64_t lba; 6960 uint32_t alloc_len, total_len; 6961 int retval; 6962 6963 CTL_DEBUG_PRINT(("ctl_get_lba_status\n")); 6964 6965 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6966 cdb = (struct scsi_get_lba_status *)ctsio->cdb; 6967 lba = scsi_8btou64(cdb->addr); 6968 alloc_len = scsi_4btoul(cdb->alloc_len); 6969 6970 if (lba > lun->be_lun->maxlba) { 6971 ctl_set_lba_out_of_range(ctsio, lba); 6972 ctl_done((union ctl_io *)ctsio); 6973 return (CTL_RETVAL_COMPLETE); 6974 } 6975 6976 total_len = sizeof(*data) + sizeof(data->descr[0]); 6977 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 6978 data = (struct scsi_get_lba_status_data *)ctsio->kern_data_ptr; 6979 6980 if (total_len < alloc_len) { 6981 ctsio->residual = alloc_len - total_len; 6982 ctsio->kern_data_len = total_len; 6983 ctsio->kern_total_len = total_len; 6984 } else { 6985 ctsio->residual = 0; 6986 ctsio->kern_data_len = alloc_len; 6987 ctsio->kern_total_len = alloc_len; 6988 } 6989 ctsio->kern_data_resid = 0; 6990 ctsio->kern_rel_offset = 0; 6991 ctsio->kern_sg_entries = 0; 6992 6993 /* Fill dummy data in case backend can't tell anything. */ 6994 scsi_ulto4b(4 + sizeof(data->descr[0]), data->length); 6995 scsi_u64to8b(lba, data->descr[0].addr); 6996 scsi_ulto4b(MIN(UINT32_MAX, lun->be_lun->maxlba + 1 - lba), 6997 data->descr[0].length); 6998 data->descr[0].status = 0; /* Mapped or unknown. */ 6999 7000 ctl_set_success(ctsio); 7001 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7002 ctsio->be_move_done = ctl_config_move_done; 7003 7004 lbalen = (struct ctl_lba_len_flags *)&ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 7005 lbalen->lba = lba; 7006 lbalen->len = total_len; 7007 lbalen->flags = 0; 7008 retval = lun->backend->config_read((union ctl_io *)ctsio); 7009 return (CTL_RETVAL_COMPLETE); 7010} 7011 7012int 7013ctl_read_defect(struct ctl_scsiio *ctsio) 7014{ 7015 struct scsi_read_defect_data_10 *ccb10; 7016 struct scsi_read_defect_data_12 *ccb12; 7017 struct scsi_read_defect_data_hdr_10 *data10; 7018 struct scsi_read_defect_data_hdr_12 *data12; 7019 uint32_t alloc_len, data_len; 7020 uint8_t format; 7021 7022 CTL_DEBUG_PRINT(("ctl_read_defect\n")); 7023 7024 if (ctsio->cdb[0] == READ_DEFECT_DATA_10) { 7025 ccb10 = (struct scsi_read_defect_data_10 *)&ctsio->cdb; 7026 format = ccb10->format; 7027 alloc_len = scsi_2btoul(ccb10->alloc_length); 7028 data_len = sizeof(*data10); 7029 } else { 7030 ccb12 = (struct scsi_read_defect_data_12 *)&ctsio->cdb; 7031 format = ccb12->format; 7032 alloc_len = scsi_4btoul(ccb12->alloc_length); 7033 data_len = sizeof(*data12); 7034 } 7035 if (alloc_len == 0) { 7036 ctl_set_success(ctsio); 7037 ctl_done((union ctl_io *)ctsio); 7038 return (CTL_RETVAL_COMPLETE); 7039 } 7040 7041 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 7042 if (data_len < alloc_len) { 7043 ctsio->residual = alloc_len - data_len; 7044 ctsio->kern_data_len = data_len; 7045 ctsio->kern_total_len = data_len; 7046 } else { 7047 ctsio->residual = 0; 7048 ctsio->kern_data_len = alloc_len; 7049 ctsio->kern_total_len = alloc_len; 7050 } 7051 ctsio->kern_data_resid = 0; 7052 ctsio->kern_rel_offset = 0; 7053 ctsio->kern_sg_entries = 0; 7054 7055 if (ctsio->cdb[0] == READ_DEFECT_DATA_10) { 7056 data10 = (struct scsi_read_defect_data_hdr_10 *) 7057 ctsio->kern_data_ptr; 7058 data10->format = format; 7059 scsi_ulto2b(0, data10->length); 7060 } else { 7061 data12 = (struct scsi_read_defect_data_hdr_12 *) 7062 ctsio->kern_data_ptr; 7063 data12->format = format; 7064 scsi_ulto2b(0, data12->generation); 7065 scsi_ulto4b(0, data12->length); 7066 } 7067 7068 ctl_set_success(ctsio); 7069 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7070 ctsio->be_move_done = ctl_config_move_done; 7071 ctl_datamove((union ctl_io *)ctsio); 7072 return (CTL_RETVAL_COMPLETE); 7073} 7074 7075int 7076ctl_report_tagret_port_groups(struct ctl_scsiio *ctsio) 7077{ 7078 struct scsi_maintenance_in *cdb; 7079 int retval; 7080 int alloc_len, ext, total_len = 0, g, pc, pg, ts, os; 7081 int num_ha_groups, num_target_ports, shared_group; 7082 struct ctl_lun *lun; 7083 struct ctl_softc *softc; 7084 struct ctl_port *port; 7085 struct scsi_target_group_data *rtg_ptr; 7086 struct scsi_target_group_data_extended *rtg_ext_ptr; 7087 struct scsi_target_port_group_descriptor *tpg_desc; 7088 7089 CTL_DEBUG_PRINT(("ctl_report_tagret_port_groups\n")); 7090 7091 cdb = (struct scsi_maintenance_in *)ctsio->cdb; 7092 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7093 softc = lun->ctl_softc; 7094 7095 retval = CTL_RETVAL_COMPLETE; 7096 7097 switch (cdb->byte2 & STG_PDF_MASK) { 7098 case STG_PDF_LENGTH: 7099 ext = 0; 7100 break; 7101 case STG_PDF_EXTENDED: 7102 ext = 1; 7103 break; 7104 default: 7105 ctl_set_invalid_field(/*ctsio*/ ctsio, 7106 /*sks_valid*/ 1, 7107 /*command*/ 1, 7108 /*field*/ 2, 7109 /*bit_valid*/ 1, 7110 /*bit*/ 5); 7111 ctl_done((union ctl_io *)ctsio); 7112 return(retval); 7113 } 7114 7115 num_target_ports = 0; 7116 shared_group = (softc->is_single != 0); 7117 mtx_lock(&softc->ctl_lock); 7118 STAILQ_FOREACH(port, &softc->port_list, links) { 7119 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 7120 continue; 7121 if (ctl_lun_map_to_port(port, lun->lun) == UINT32_MAX) 7122 continue; 7123 num_target_ports++; 7124 if (port->status & CTL_PORT_STATUS_HA_SHARED) 7125 shared_group = 1; 7126 } 7127 mtx_unlock(&softc->ctl_lock); 7128 num_ha_groups = (softc->is_single) ? 0 : NUM_HA_SHELVES; 7129 7130 if (ext) 7131 total_len = sizeof(struct scsi_target_group_data_extended); 7132 else 7133 total_len = sizeof(struct scsi_target_group_data); 7134 total_len += sizeof(struct scsi_target_port_group_descriptor) * 7135 (shared_group + num_ha_groups) + 7136 sizeof(struct scsi_target_port_descriptor) * num_target_ports; 7137 7138 alloc_len = scsi_4btoul(cdb->length); 7139 7140 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7141 7142 ctsio->kern_sg_entries = 0; 7143 7144 if (total_len < alloc_len) { 7145 ctsio->residual = alloc_len - total_len; 7146 ctsio->kern_data_len = total_len; 7147 ctsio->kern_total_len = total_len; 7148 } else { 7149 ctsio->residual = 0; 7150 ctsio->kern_data_len = alloc_len; 7151 ctsio->kern_total_len = alloc_len; 7152 } 7153 ctsio->kern_data_resid = 0; 7154 ctsio->kern_rel_offset = 0; 7155 7156 if (ext) { 7157 rtg_ext_ptr = (struct scsi_target_group_data_extended *) 7158 ctsio->kern_data_ptr; 7159 scsi_ulto4b(total_len - 4, rtg_ext_ptr->length); 7160 rtg_ext_ptr->format_type = 0x10; 7161 rtg_ext_ptr->implicit_transition_time = 0; 7162 tpg_desc = &rtg_ext_ptr->groups[0]; 7163 } else { 7164 rtg_ptr = (struct scsi_target_group_data *) 7165 ctsio->kern_data_ptr; 7166 scsi_ulto4b(total_len - 4, rtg_ptr->length); 7167 tpg_desc = &rtg_ptr->groups[0]; 7168 } 7169 7170 mtx_lock(&softc->ctl_lock); 7171 pg = softc->port_min / softc->port_cnt; 7172 if (lun->flags & (CTL_LUN_PRIMARY_SC | CTL_LUN_PEER_SC_PRIMARY)) { 7173 /* Some shelf is known to be primary. */ 7174 if (softc->ha_link == CTL_HA_LINK_OFFLINE) 7175 os = TPG_ASYMMETRIC_ACCESS_UNAVAILABLE; 7176 else if (softc->ha_link == CTL_HA_LINK_UNKNOWN) 7177 os = TPG_ASYMMETRIC_ACCESS_TRANSITIONING; 7178 else if (softc->ha_mode == CTL_HA_MODE_ACT_STBY) 7179 os = TPG_ASYMMETRIC_ACCESS_STANDBY; 7180 else 7181 os = TPG_ASYMMETRIC_ACCESS_NONOPTIMIZED; 7182 if (lun->flags & CTL_LUN_PRIMARY_SC) { 7183 ts = TPG_ASYMMETRIC_ACCESS_OPTIMIZED; 7184 } else { 7185 ts = os; 7186 os = TPG_ASYMMETRIC_ACCESS_OPTIMIZED; 7187 } 7188 } else { 7189 /* No known primary shelf. */ 7190 if (softc->ha_link == CTL_HA_LINK_OFFLINE) { 7191 ts = TPG_ASYMMETRIC_ACCESS_UNAVAILABLE; 7192 os = TPG_ASYMMETRIC_ACCESS_OPTIMIZED; 7193 } else if (softc->ha_link == CTL_HA_LINK_UNKNOWN) { 7194 ts = TPG_ASYMMETRIC_ACCESS_TRANSITIONING; 7195 os = TPG_ASYMMETRIC_ACCESS_OPTIMIZED; 7196 } else { 7197 ts = os = TPG_ASYMMETRIC_ACCESS_TRANSITIONING; 7198 } 7199 } 7200 if (shared_group) { 7201 tpg_desc->pref_state = ts; 7202 tpg_desc->support = TPG_AO_SUP | TPG_AN_SUP | TPG_S_SUP | 7203 TPG_U_SUP | TPG_T_SUP; 7204 scsi_ulto2b(1, tpg_desc->target_port_group); 7205 tpg_desc->status = TPG_IMPLICIT; 7206 pc = 0; 7207 STAILQ_FOREACH(port, &softc->port_list, links) { 7208 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 7209 continue; 7210 if (!softc->is_single && 7211 (port->status & CTL_PORT_STATUS_HA_SHARED) == 0) 7212 continue; 7213 if (ctl_lun_map_to_port(port, lun->lun) == UINT32_MAX) 7214 continue; 7215 scsi_ulto2b(port->targ_port, tpg_desc->descriptors[pc]. 7216 relative_target_port_identifier); 7217 pc++; 7218 } 7219 tpg_desc->target_port_count = pc; 7220 tpg_desc = (struct scsi_target_port_group_descriptor *) 7221 &tpg_desc->descriptors[pc]; 7222 } 7223 for (g = 0; g < num_ha_groups; g++) { 7224 tpg_desc->pref_state = (g == pg) ? ts : os; 7225 tpg_desc->support = TPG_AO_SUP | TPG_AN_SUP | TPG_S_SUP | 7226 TPG_U_SUP | TPG_T_SUP; 7227 scsi_ulto2b(2 + g, tpg_desc->target_port_group); 7228 tpg_desc->status = TPG_IMPLICIT; 7229 pc = 0; 7230 STAILQ_FOREACH(port, &softc->port_list, links) { 7231 if (port->targ_port < g * softc->port_cnt || 7232 port->targ_port >= (g + 1) * softc->port_cnt) 7233 continue; 7234 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 7235 continue; 7236 if (port->status & CTL_PORT_STATUS_HA_SHARED) 7237 continue; 7238 if (ctl_lun_map_to_port(port, lun->lun) == UINT32_MAX) 7239 continue; 7240 scsi_ulto2b(port->targ_port, tpg_desc->descriptors[pc]. 7241 relative_target_port_identifier); 7242 pc++; 7243 } 7244 tpg_desc->target_port_count = pc; 7245 tpg_desc = (struct scsi_target_port_group_descriptor *) 7246 &tpg_desc->descriptors[pc]; 7247 } 7248 mtx_unlock(&softc->ctl_lock); 7249 7250 ctl_set_success(ctsio); 7251 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7252 ctsio->be_move_done = ctl_config_move_done; 7253 ctl_datamove((union ctl_io *)ctsio); 7254 return(retval); 7255} 7256 7257int 7258ctl_report_supported_opcodes(struct ctl_scsiio *ctsio) 7259{ 7260 struct ctl_lun *lun; 7261 struct scsi_report_supported_opcodes *cdb; 7262 const struct ctl_cmd_entry *entry, *sentry; 7263 struct scsi_report_supported_opcodes_all *all; 7264 struct scsi_report_supported_opcodes_descr *descr; 7265 struct scsi_report_supported_opcodes_one *one; 7266 int retval; 7267 int alloc_len, total_len; 7268 int opcode, service_action, i, j, num; 7269 7270 CTL_DEBUG_PRINT(("ctl_report_supported_opcodes\n")); 7271 7272 cdb = (struct scsi_report_supported_opcodes *)ctsio->cdb; 7273 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7274 7275 retval = CTL_RETVAL_COMPLETE; 7276 7277 opcode = cdb->requested_opcode; 7278 service_action = scsi_2btoul(cdb->requested_service_action); 7279 switch (cdb->options & RSO_OPTIONS_MASK) { 7280 case RSO_OPTIONS_ALL: 7281 num = 0; 7282 for (i = 0; i < 256; i++) { 7283 entry = &ctl_cmd_table[i]; 7284 if (entry->flags & CTL_CMD_FLAG_SA5) { 7285 for (j = 0; j < 32; j++) { 7286 sentry = &((const struct ctl_cmd_entry *) 7287 entry->execute)[j]; 7288 if (ctl_cmd_applicable( 7289 lun->be_lun->lun_type, sentry)) 7290 num++; 7291 } 7292 } else { 7293 if (ctl_cmd_applicable(lun->be_lun->lun_type, 7294 entry)) 7295 num++; 7296 } 7297 } 7298 total_len = sizeof(struct scsi_report_supported_opcodes_all) + 7299 num * sizeof(struct scsi_report_supported_opcodes_descr); 7300 break; 7301 case RSO_OPTIONS_OC: 7302 if (ctl_cmd_table[opcode].flags & CTL_CMD_FLAG_SA5) { 7303 ctl_set_invalid_field(/*ctsio*/ ctsio, 7304 /*sks_valid*/ 1, 7305 /*command*/ 1, 7306 /*field*/ 2, 7307 /*bit_valid*/ 1, 7308 /*bit*/ 2); 7309 ctl_done((union ctl_io *)ctsio); 7310 return (CTL_RETVAL_COMPLETE); 7311 } 7312 total_len = sizeof(struct scsi_report_supported_opcodes_one) + 32; 7313 break; 7314 case RSO_OPTIONS_OC_SA: 7315 if ((ctl_cmd_table[opcode].flags & CTL_CMD_FLAG_SA5) == 0 || 7316 service_action >= 32) { 7317 ctl_set_invalid_field(/*ctsio*/ ctsio, 7318 /*sks_valid*/ 1, 7319 /*command*/ 1, 7320 /*field*/ 2, 7321 /*bit_valid*/ 1, 7322 /*bit*/ 2); 7323 ctl_done((union ctl_io *)ctsio); 7324 return (CTL_RETVAL_COMPLETE); 7325 } 7326 /* FALLTHROUGH */ 7327 case RSO_OPTIONS_OC_ASA: 7328 total_len = sizeof(struct scsi_report_supported_opcodes_one) + 32; 7329 break; 7330 default: 7331 ctl_set_invalid_field(/*ctsio*/ ctsio, 7332 /*sks_valid*/ 1, 7333 /*command*/ 1, 7334 /*field*/ 2, 7335 /*bit_valid*/ 1, 7336 /*bit*/ 2); 7337 ctl_done((union ctl_io *)ctsio); 7338 return (CTL_RETVAL_COMPLETE); 7339 } 7340 7341 alloc_len = scsi_4btoul(cdb->length); 7342 7343 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7344 7345 ctsio->kern_sg_entries = 0; 7346 7347 if (total_len < alloc_len) { 7348 ctsio->residual = alloc_len - total_len; 7349 ctsio->kern_data_len = total_len; 7350 ctsio->kern_total_len = total_len; 7351 } else { 7352 ctsio->residual = 0; 7353 ctsio->kern_data_len = alloc_len; 7354 ctsio->kern_total_len = alloc_len; 7355 } 7356 ctsio->kern_data_resid = 0; 7357 ctsio->kern_rel_offset = 0; 7358 7359 switch (cdb->options & RSO_OPTIONS_MASK) { 7360 case RSO_OPTIONS_ALL: 7361 all = (struct scsi_report_supported_opcodes_all *) 7362 ctsio->kern_data_ptr; 7363 num = 0; 7364 for (i = 0; i < 256; i++) { 7365 entry = &ctl_cmd_table[i]; 7366 if (entry->flags & CTL_CMD_FLAG_SA5) { 7367 for (j = 0; j < 32; j++) { 7368 sentry = &((const struct ctl_cmd_entry *) 7369 entry->execute)[j]; 7370 if (!ctl_cmd_applicable( 7371 lun->be_lun->lun_type, sentry)) 7372 continue; 7373 descr = &all->descr[num++]; 7374 descr->opcode = i; 7375 scsi_ulto2b(j, descr->service_action); 7376 descr->flags = RSO_SERVACTV; 7377 scsi_ulto2b(sentry->length, 7378 descr->cdb_length); 7379 } 7380 } else { 7381 if (!ctl_cmd_applicable(lun->be_lun->lun_type, 7382 entry)) 7383 continue; 7384 descr = &all->descr[num++]; 7385 descr->opcode = i; 7386 scsi_ulto2b(0, descr->service_action); 7387 descr->flags = 0; 7388 scsi_ulto2b(entry->length, descr->cdb_length); 7389 } 7390 } 7391 scsi_ulto4b( 7392 num * sizeof(struct scsi_report_supported_opcodes_descr), 7393 all->length); 7394 break; 7395 case RSO_OPTIONS_OC: 7396 one = (struct scsi_report_supported_opcodes_one *) 7397 ctsio->kern_data_ptr; 7398 entry = &ctl_cmd_table[opcode]; 7399 goto fill_one; 7400 case RSO_OPTIONS_OC_SA: 7401 one = (struct scsi_report_supported_opcodes_one *) 7402 ctsio->kern_data_ptr; 7403 entry = &ctl_cmd_table[opcode]; 7404 entry = &((const struct ctl_cmd_entry *) 7405 entry->execute)[service_action]; 7406fill_one: 7407 if (ctl_cmd_applicable(lun->be_lun->lun_type, entry)) { 7408 one->support = 3; 7409 scsi_ulto2b(entry->length, one->cdb_length); 7410 one->cdb_usage[0] = opcode; 7411 memcpy(&one->cdb_usage[1], entry->usage, 7412 entry->length - 1); 7413 } else 7414 one->support = 1; 7415 break; 7416 case RSO_OPTIONS_OC_ASA: 7417 one = (struct scsi_report_supported_opcodes_one *) 7418 ctsio->kern_data_ptr; 7419 entry = &ctl_cmd_table[opcode]; 7420 if (entry->flags & CTL_CMD_FLAG_SA5) { 7421 entry = &((const struct ctl_cmd_entry *) 7422 entry->execute)[service_action]; 7423 } else if (service_action != 0) { 7424 one->support = 1; 7425 break; 7426 } 7427 goto fill_one; 7428 } 7429 7430 ctl_set_success(ctsio); 7431 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7432 ctsio->be_move_done = ctl_config_move_done; 7433 ctl_datamove((union ctl_io *)ctsio); 7434 return(retval); 7435} 7436 7437int 7438ctl_report_supported_tmf(struct ctl_scsiio *ctsio) 7439{ 7440 struct scsi_report_supported_tmf *cdb; 7441 struct scsi_report_supported_tmf_ext_data *data; 7442 int retval; 7443 int alloc_len, total_len; 7444 7445 CTL_DEBUG_PRINT(("ctl_report_supported_tmf\n")); 7446 7447 cdb = (struct scsi_report_supported_tmf *)ctsio->cdb; 7448 7449 retval = CTL_RETVAL_COMPLETE; 7450 7451 if (cdb->options & RST_REPD) 7452 total_len = sizeof(struct scsi_report_supported_tmf_ext_data); 7453 else 7454 total_len = sizeof(struct scsi_report_supported_tmf_data); 7455 alloc_len = scsi_4btoul(cdb->length); 7456 7457 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7458 7459 ctsio->kern_sg_entries = 0; 7460 7461 if (total_len < alloc_len) { 7462 ctsio->residual = alloc_len - total_len; 7463 ctsio->kern_data_len = total_len; 7464 ctsio->kern_total_len = total_len; 7465 } else { 7466 ctsio->residual = 0; 7467 ctsio->kern_data_len = alloc_len; 7468 ctsio->kern_total_len = alloc_len; 7469 } 7470 ctsio->kern_data_resid = 0; 7471 ctsio->kern_rel_offset = 0; 7472 7473 data = (struct scsi_report_supported_tmf_ext_data *)ctsio->kern_data_ptr; 7474 data->byte1 |= RST_ATS | RST_ATSS | RST_CTSS | RST_LURS | RST_QTS | 7475 RST_TRS; 7476 data->byte2 |= RST_QAES | RST_QTSS | RST_ITNRS; 7477 data->length = total_len - 4; 7478 7479 ctl_set_success(ctsio); 7480 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7481 ctsio->be_move_done = ctl_config_move_done; 7482 ctl_datamove((union ctl_io *)ctsio); 7483 return (retval); 7484} 7485 7486int 7487ctl_report_timestamp(struct ctl_scsiio *ctsio) 7488{ 7489 struct scsi_report_timestamp *cdb; 7490 struct scsi_report_timestamp_data *data; 7491 struct timeval tv; 7492 int64_t timestamp; 7493 int retval; 7494 int alloc_len, total_len; 7495 7496 CTL_DEBUG_PRINT(("ctl_report_timestamp\n")); 7497 7498 cdb = (struct scsi_report_timestamp *)ctsio->cdb; 7499 7500 retval = CTL_RETVAL_COMPLETE; 7501 7502 total_len = sizeof(struct scsi_report_timestamp_data); 7503 alloc_len = scsi_4btoul(cdb->length); 7504 7505 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7506 7507 ctsio->kern_sg_entries = 0; 7508 7509 if (total_len < alloc_len) { 7510 ctsio->residual = alloc_len - total_len; 7511 ctsio->kern_data_len = total_len; 7512 ctsio->kern_total_len = total_len; 7513 } else { 7514 ctsio->residual = 0; 7515 ctsio->kern_data_len = alloc_len; 7516 ctsio->kern_total_len = alloc_len; 7517 } 7518 ctsio->kern_data_resid = 0; 7519 ctsio->kern_rel_offset = 0; 7520 7521 data = (struct scsi_report_timestamp_data *)ctsio->kern_data_ptr; 7522 scsi_ulto2b(sizeof(*data) - 2, data->length); 7523 data->origin = RTS_ORIG_OUTSIDE; 7524 getmicrotime(&tv); 7525 timestamp = (int64_t)tv.tv_sec * 1000 + tv.tv_usec / 1000; 7526 scsi_ulto4b(timestamp >> 16, data->timestamp); 7527 scsi_ulto2b(timestamp & 0xffff, &data->timestamp[4]); 7528 7529 ctl_set_success(ctsio); 7530 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7531 ctsio->be_move_done = ctl_config_move_done; 7532 ctl_datamove((union ctl_io *)ctsio); 7533 return (retval); 7534} 7535 7536int 7537ctl_persistent_reserve_in(struct ctl_scsiio *ctsio) 7538{ 7539 struct scsi_per_res_in *cdb; 7540 int alloc_len, total_len = 0; 7541 /* struct scsi_per_res_in_rsrv in_data; */ 7542 struct ctl_lun *lun; 7543 struct ctl_softc *softc; 7544 uint64_t key; 7545 7546 CTL_DEBUG_PRINT(("ctl_persistent_reserve_in\n")); 7547 7548 cdb = (struct scsi_per_res_in *)ctsio->cdb; 7549 7550 alloc_len = scsi_2btoul(cdb->length); 7551 7552 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7553 softc = lun->ctl_softc; 7554 7555retry: 7556 mtx_lock(&lun->lun_lock); 7557 switch (cdb->action) { 7558 case SPRI_RK: /* read keys */ 7559 total_len = sizeof(struct scsi_per_res_in_keys) + 7560 lun->pr_key_count * 7561 sizeof(struct scsi_per_res_key); 7562 break; 7563 case SPRI_RR: /* read reservation */ 7564 if (lun->flags & CTL_LUN_PR_RESERVED) 7565 total_len = sizeof(struct scsi_per_res_in_rsrv); 7566 else 7567 total_len = sizeof(struct scsi_per_res_in_header); 7568 break; 7569 case SPRI_RC: /* report capabilities */ 7570 total_len = sizeof(struct scsi_per_res_cap); 7571 break; 7572 case SPRI_RS: /* read full status */ 7573 total_len = sizeof(struct scsi_per_res_in_header) + 7574 (sizeof(struct scsi_per_res_in_full_desc) + 256) * 7575 lun->pr_key_count; 7576 break; 7577 default: 7578 panic("%s: Invalid PR type %#x", __func__, cdb->action); 7579 } 7580 mtx_unlock(&lun->lun_lock); 7581 7582 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7583 7584 if (total_len < alloc_len) { 7585 ctsio->residual = alloc_len - total_len; 7586 ctsio->kern_data_len = total_len; 7587 ctsio->kern_total_len = total_len; 7588 } else { 7589 ctsio->residual = 0; 7590 ctsio->kern_data_len = alloc_len; 7591 ctsio->kern_total_len = alloc_len; 7592 } 7593 7594 ctsio->kern_data_resid = 0; 7595 ctsio->kern_rel_offset = 0; 7596 ctsio->kern_sg_entries = 0; 7597 7598 mtx_lock(&lun->lun_lock); 7599 switch (cdb->action) { 7600 case SPRI_RK: { // read keys 7601 struct scsi_per_res_in_keys *res_keys; 7602 int i, key_count; 7603 7604 res_keys = (struct scsi_per_res_in_keys*)ctsio->kern_data_ptr; 7605 7606 /* 7607 * We had to drop the lock to allocate our buffer, which 7608 * leaves time for someone to come in with another 7609 * persistent reservation. (That is unlikely, though, 7610 * since this should be the only persistent reservation 7611 * command active right now.) 7612 */ 7613 if (total_len != (sizeof(struct scsi_per_res_in_keys) + 7614 (lun->pr_key_count * 7615 sizeof(struct scsi_per_res_key)))){ 7616 mtx_unlock(&lun->lun_lock); 7617 free(ctsio->kern_data_ptr, M_CTL); 7618 printf("%s: reservation length changed, retrying\n", 7619 __func__); 7620 goto retry; 7621 } 7622 7623 scsi_ulto4b(lun->pr_generation, res_keys->header.generation); 7624 7625 scsi_ulto4b(sizeof(struct scsi_per_res_key) * 7626 lun->pr_key_count, res_keys->header.length); 7627 7628 for (i = 0, key_count = 0; i < CTL_MAX_INITIATORS; i++) { 7629 if ((key = ctl_get_prkey(lun, i)) == 0) 7630 continue; 7631 7632 /* 7633 * We used lun->pr_key_count to calculate the 7634 * size to allocate. If it turns out the number of 7635 * initiators with the registered flag set is 7636 * larger than that (i.e. they haven't been kept in 7637 * sync), we've got a problem. 7638 */ 7639 if (key_count >= lun->pr_key_count) { 7640 key_count++; 7641 continue; 7642 } 7643 scsi_u64to8b(key, res_keys->keys[key_count].key); 7644 key_count++; 7645 } 7646 break; 7647 } 7648 case SPRI_RR: { // read reservation 7649 struct scsi_per_res_in_rsrv *res; 7650 int tmp_len, header_only; 7651 7652 res = (struct scsi_per_res_in_rsrv *)ctsio->kern_data_ptr; 7653 7654 scsi_ulto4b(lun->pr_generation, res->header.generation); 7655 7656 if (lun->flags & CTL_LUN_PR_RESERVED) 7657 { 7658 tmp_len = sizeof(struct scsi_per_res_in_rsrv); 7659 scsi_ulto4b(sizeof(struct scsi_per_res_in_rsrv_data), 7660 res->header.length); 7661 header_only = 0; 7662 } else { 7663 tmp_len = sizeof(struct scsi_per_res_in_header); 7664 scsi_ulto4b(0, res->header.length); 7665 header_only = 1; 7666 } 7667 7668 /* 7669 * We had to drop the lock to allocate our buffer, which 7670 * leaves time for someone to come in with another 7671 * persistent reservation. (That is unlikely, though, 7672 * since this should be the only persistent reservation 7673 * command active right now.) 7674 */ 7675 if (tmp_len != total_len) { 7676 mtx_unlock(&lun->lun_lock); 7677 free(ctsio->kern_data_ptr, M_CTL); 7678 printf("%s: reservation status changed, retrying\n", 7679 __func__); 7680 goto retry; 7681 } 7682 7683 /* 7684 * No reservation held, so we're done. 7685 */ 7686 if (header_only != 0) 7687 break; 7688 7689 /* 7690 * If the registration is an All Registrants type, the key 7691 * is 0, since it doesn't really matter. 7692 */ 7693 if (lun->pr_res_idx != CTL_PR_ALL_REGISTRANTS) { 7694 scsi_u64to8b(ctl_get_prkey(lun, lun->pr_res_idx), 7695 res->data.reservation); 7696 } 7697 res->data.scopetype = lun->pr_res_type; 7698 break; 7699 } 7700 case SPRI_RC: //report capabilities 7701 { 7702 struct scsi_per_res_cap *res_cap; 7703 uint16_t type_mask; 7704 7705 res_cap = (struct scsi_per_res_cap *)ctsio->kern_data_ptr; 7706 scsi_ulto2b(sizeof(*res_cap), res_cap->length); 7707 res_cap->flags1 = SPRI_CRH; 7708 res_cap->flags2 = SPRI_TMV | SPRI_ALLOW_5; 7709 type_mask = SPRI_TM_WR_EX_AR | 7710 SPRI_TM_EX_AC_RO | 7711 SPRI_TM_WR_EX_RO | 7712 SPRI_TM_EX_AC | 7713 SPRI_TM_WR_EX | 7714 SPRI_TM_EX_AC_AR; 7715 scsi_ulto2b(type_mask, res_cap->type_mask); 7716 break; 7717 } 7718 case SPRI_RS: { // read full status 7719 struct scsi_per_res_in_full *res_status; 7720 struct scsi_per_res_in_full_desc *res_desc; 7721 struct ctl_port *port; 7722 int i, len; 7723 7724 res_status = (struct scsi_per_res_in_full*)ctsio->kern_data_ptr; 7725 7726 /* 7727 * We had to drop the lock to allocate our buffer, which 7728 * leaves time for someone to come in with another 7729 * persistent reservation. (That is unlikely, though, 7730 * since this should be the only persistent reservation 7731 * command active right now.) 7732 */ 7733 if (total_len < (sizeof(struct scsi_per_res_in_header) + 7734 (sizeof(struct scsi_per_res_in_full_desc) + 256) * 7735 lun->pr_key_count)){ 7736 mtx_unlock(&lun->lun_lock); 7737 free(ctsio->kern_data_ptr, M_CTL); 7738 printf("%s: reservation length changed, retrying\n", 7739 __func__); 7740 goto retry; 7741 } 7742 7743 scsi_ulto4b(lun->pr_generation, res_status->header.generation); 7744 7745 res_desc = &res_status->desc[0]; 7746 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 7747 if ((key = ctl_get_prkey(lun, i)) == 0) 7748 continue; 7749 7750 scsi_u64to8b(key, res_desc->res_key.key); 7751 if ((lun->flags & CTL_LUN_PR_RESERVED) && 7752 (lun->pr_res_idx == i || 7753 lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS)) { 7754 res_desc->flags = SPRI_FULL_R_HOLDER; 7755 res_desc->scopetype = lun->pr_res_type; 7756 } 7757 scsi_ulto2b(i / CTL_MAX_INIT_PER_PORT, 7758 res_desc->rel_trgt_port_id); 7759 len = 0; 7760 port = softc->ctl_ports[i / CTL_MAX_INIT_PER_PORT]; 7761 if (port != NULL) 7762 len = ctl_create_iid(port, 7763 i % CTL_MAX_INIT_PER_PORT, 7764 res_desc->transport_id); 7765 scsi_ulto4b(len, res_desc->additional_length); 7766 res_desc = (struct scsi_per_res_in_full_desc *) 7767 &res_desc->transport_id[len]; 7768 } 7769 scsi_ulto4b((uint8_t *)res_desc - (uint8_t *)&res_status->desc[0], 7770 res_status->header.length); 7771 break; 7772 } 7773 default: 7774 panic("%s: Invalid PR type %#x", __func__, cdb->action); 7775 } 7776 mtx_unlock(&lun->lun_lock); 7777 7778 ctl_set_success(ctsio); 7779 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7780 ctsio->be_move_done = ctl_config_move_done; 7781 ctl_datamove((union ctl_io *)ctsio); 7782 return (CTL_RETVAL_COMPLETE); 7783} 7784 7785/* 7786 * Returns 0 if ctl_persistent_reserve_out() should continue, non-zero if 7787 * it should return. 7788 */ 7789static int 7790ctl_pro_preempt(struct ctl_softc *softc, struct ctl_lun *lun, uint64_t res_key, 7791 uint64_t sa_res_key, uint8_t type, uint32_t residx, 7792 struct ctl_scsiio *ctsio, struct scsi_per_res_out *cdb, 7793 struct scsi_per_res_out_parms* param) 7794{ 7795 union ctl_ha_msg persis_io; 7796 int i; 7797 7798 mtx_lock(&lun->lun_lock); 7799 if (sa_res_key == 0) { 7800 if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS) { 7801 /* validate scope and type */ 7802 if ((cdb->scope_type & SPR_SCOPE_MASK) != 7803 SPR_LU_SCOPE) { 7804 mtx_unlock(&lun->lun_lock); 7805 ctl_set_invalid_field(/*ctsio*/ ctsio, 7806 /*sks_valid*/ 1, 7807 /*command*/ 1, 7808 /*field*/ 2, 7809 /*bit_valid*/ 1, 7810 /*bit*/ 4); 7811 ctl_done((union ctl_io *)ctsio); 7812 return (1); 7813 } 7814 7815 if (type>8 || type==2 || type==4 || type==0) { 7816 mtx_unlock(&lun->lun_lock); 7817 ctl_set_invalid_field(/*ctsio*/ ctsio, 7818 /*sks_valid*/ 1, 7819 /*command*/ 1, 7820 /*field*/ 2, 7821 /*bit_valid*/ 1, 7822 /*bit*/ 0); 7823 ctl_done((union ctl_io *)ctsio); 7824 return (1); 7825 } 7826 7827 /* 7828 * Unregister everybody else and build UA for 7829 * them 7830 */ 7831 for(i = 0; i < CTL_MAX_INITIATORS; i++) { 7832 if (i == residx || ctl_get_prkey(lun, i) == 0) 7833 continue; 7834 7835 ctl_clr_prkey(lun, i); 7836 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 7837 } 7838 lun->pr_key_count = 1; 7839 lun->pr_res_type = type; 7840 if (lun->pr_res_type != SPR_TYPE_WR_EX_AR && 7841 lun->pr_res_type != SPR_TYPE_EX_AC_AR) 7842 lun->pr_res_idx = residx; 7843 lun->pr_generation++; 7844 mtx_unlock(&lun->lun_lock); 7845 7846 /* send msg to other side */ 7847 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 7848 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 7849 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 7850 persis_io.pr.pr_info.residx = lun->pr_res_idx; 7851 persis_io.pr.pr_info.res_type = type; 7852 memcpy(persis_io.pr.pr_info.sa_res_key, 7853 param->serv_act_res_key, 7854 sizeof(param->serv_act_res_key)); 7855 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 7856 sizeof(persis_io.pr), M_WAITOK); 7857 } else { 7858 /* not all registrants */ 7859 mtx_unlock(&lun->lun_lock); 7860 free(ctsio->kern_data_ptr, M_CTL); 7861 ctl_set_invalid_field(ctsio, 7862 /*sks_valid*/ 1, 7863 /*command*/ 0, 7864 /*field*/ 8, 7865 /*bit_valid*/ 0, 7866 /*bit*/ 0); 7867 ctl_done((union ctl_io *)ctsio); 7868 return (1); 7869 } 7870 } else if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS 7871 || !(lun->flags & CTL_LUN_PR_RESERVED)) { 7872 int found = 0; 7873 7874 if (res_key == sa_res_key) { 7875 /* special case */ 7876 /* 7877 * The spec implies this is not good but doesn't 7878 * say what to do. There are two choices either 7879 * generate a res conflict or check condition 7880 * with illegal field in parameter data. Since 7881 * that is what is done when the sa_res_key is 7882 * zero I'll take that approach since this has 7883 * to do with the sa_res_key. 7884 */ 7885 mtx_unlock(&lun->lun_lock); 7886 free(ctsio->kern_data_ptr, M_CTL); 7887 ctl_set_invalid_field(ctsio, 7888 /*sks_valid*/ 1, 7889 /*command*/ 0, 7890 /*field*/ 8, 7891 /*bit_valid*/ 0, 7892 /*bit*/ 0); 7893 ctl_done((union ctl_io *)ctsio); 7894 return (1); 7895 } 7896 7897 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 7898 if (ctl_get_prkey(lun, i) != sa_res_key) 7899 continue; 7900 7901 found = 1; 7902 ctl_clr_prkey(lun, i); 7903 lun->pr_key_count--; 7904 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 7905 } 7906 if (!found) { 7907 mtx_unlock(&lun->lun_lock); 7908 free(ctsio->kern_data_ptr, M_CTL); 7909 ctl_set_reservation_conflict(ctsio); 7910 ctl_done((union ctl_io *)ctsio); 7911 return (CTL_RETVAL_COMPLETE); 7912 } 7913 lun->pr_generation++; 7914 mtx_unlock(&lun->lun_lock); 7915 7916 /* send msg to other side */ 7917 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 7918 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 7919 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 7920 persis_io.pr.pr_info.residx = lun->pr_res_idx; 7921 persis_io.pr.pr_info.res_type = type; 7922 memcpy(persis_io.pr.pr_info.sa_res_key, 7923 param->serv_act_res_key, 7924 sizeof(param->serv_act_res_key)); 7925 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 7926 sizeof(persis_io.pr), M_WAITOK); 7927 } else { 7928 /* Reserved but not all registrants */ 7929 /* sa_res_key is res holder */ 7930 if (sa_res_key == ctl_get_prkey(lun, lun->pr_res_idx)) { 7931 /* validate scope and type */ 7932 if ((cdb->scope_type & SPR_SCOPE_MASK) != 7933 SPR_LU_SCOPE) { 7934 mtx_unlock(&lun->lun_lock); 7935 ctl_set_invalid_field(/*ctsio*/ ctsio, 7936 /*sks_valid*/ 1, 7937 /*command*/ 1, 7938 /*field*/ 2, 7939 /*bit_valid*/ 1, 7940 /*bit*/ 4); 7941 ctl_done((union ctl_io *)ctsio); 7942 return (1); 7943 } 7944 7945 if (type>8 || type==2 || type==4 || type==0) { 7946 mtx_unlock(&lun->lun_lock); 7947 ctl_set_invalid_field(/*ctsio*/ ctsio, 7948 /*sks_valid*/ 1, 7949 /*command*/ 1, 7950 /*field*/ 2, 7951 /*bit_valid*/ 1, 7952 /*bit*/ 0); 7953 ctl_done((union ctl_io *)ctsio); 7954 return (1); 7955 } 7956 7957 /* 7958 * Do the following: 7959 * if sa_res_key != res_key remove all 7960 * registrants w/sa_res_key and generate UA 7961 * for these registrants(Registrations 7962 * Preempted) if it wasn't an exclusive 7963 * reservation generate UA(Reservations 7964 * Preempted) for all other registered nexuses 7965 * if the type has changed. Establish the new 7966 * reservation and holder. If res_key and 7967 * sa_res_key are the same do the above 7968 * except don't unregister the res holder. 7969 */ 7970 7971 for(i = 0; i < CTL_MAX_INITIATORS; i++) { 7972 if (i == residx || ctl_get_prkey(lun, i) == 0) 7973 continue; 7974 7975 if (sa_res_key == ctl_get_prkey(lun, i)) { 7976 ctl_clr_prkey(lun, i); 7977 lun->pr_key_count--; 7978 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 7979 } else if (type != lun->pr_res_type && 7980 (lun->pr_res_type == SPR_TYPE_WR_EX_RO || 7981 lun->pr_res_type == SPR_TYPE_EX_AC_RO)) { 7982 ctl_est_ua(lun, i, CTL_UA_RES_RELEASE); 7983 } 7984 } 7985 lun->pr_res_type = type; 7986 if (lun->pr_res_type != SPR_TYPE_WR_EX_AR && 7987 lun->pr_res_type != SPR_TYPE_EX_AC_AR) 7988 lun->pr_res_idx = residx; 7989 else 7990 lun->pr_res_idx = CTL_PR_ALL_REGISTRANTS; 7991 lun->pr_generation++; 7992 mtx_unlock(&lun->lun_lock); 7993 7994 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 7995 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 7996 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 7997 persis_io.pr.pr_info.residx = lun->pr_res_idx; 7998 persis_io.pr.pr_info.res_type = type; 7999 memcpy(persis_io.pr.pr_info.sa_res_key, 8000 param->serv_act_res_key, 8001 sizeof(param->serv_act_res_key)); 8002 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8003 sizeof(persis_io.pr), M_WAITOK); 8004 } else { 8005 /* 8006 * sa_res_key is not the res holder just 8007 * remove registrants 8008 */ 8009 int found=0; 8010 8011 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 8012 if (sa_res_key != ctl_get_prkey(lun, i)) 8013 continue; 8014 8015 found = 1; 8016 ctl_clr_prkey(lun, i); 8017 lun->pr_key_count--; 8018 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 8019 } 8020 8021 if (!found) { 8022 mtx_unlock(&lun->lun_lock); 8023 free(ctsio->kern_data_ptr, M_CTL); 8024 ctl_set_reservation_conflict(ctsio); 8025 ctl_done((union ctl_io *)ctsio); 8026 return (1); 8027 } 8028 lun->pr_generation++; 8029 mtx_unlock(&lun->lun_lock); 8030 8031 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8032 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8033 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 8034 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8035 persis_io.pr.pr_info.res_type = type; 8036 memcpy(persis_io.pr.pr_info.sa_res_key, 8037 param->serv_act_res_key, 8038 sizeof(param->serv_act_res_key)); 8039 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8040 sizeof(persis_io.pr), M_WAITOK); 8041 } 8042 } 8043 return (0); 8044} 8045 8046static void 8047ctl_pro_preempt_other(struct ctl_lun *lun, union ctl_ha_msg *msg) 8048{ 8049 uint64_t sa_res_key; 8050 int i; 8051 8052 sa_res_key = scsi_8btou64(msg->pr.pr_info.sa_res_key); 8053 8054 if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS 8055 || lun->pr_res_idx == CTL_PR_NO_RESERVATION 8056 || sa_res_key != ctl_get_prkey(lun, lun->pr_res_idx)) { 8057 if (sa_res_key == 0) { 8058 /* 8059 * Unregister everybody else and build UA for 8060 * them 8061 */ 8062 for(i = 0; i < CTL_MAX_INITIATORS; i++) { 8063 if (i == msg->pr.pr_info.residx || 8064 ctl_get_prkey(lun, i) == 0) 8065 continue; 8066 8067 ctl_clr_prkey(lun, i); 8068 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 8069 } 8070 8071 lun->pr_key_count = 1; 8072 lun->pr_res_type = msg->pr.pr_info.res_type; 8073 if (lun->pr_res_type != SPR_TYPE_WR_EX_AR && 8074 lun->pr_res_type != SPR_TYPE_EX_AC_AR) 8075 lun->pr_res_idx = msg->pr.pr_info.residx; 8076 } else { 8077 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 8078 if (sa_res_key == ctl_get_prkey(lun, i)) 8079 continue; 8080 8081 ctl_clr_prkey(lun, i); 8082 lun->pr_key_count--; 8083 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 8084 } 8085 } 8086 } else { 8087 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 8088 if (i == msg->pr.pr_info.residx || 8089 ctl_get_prkey(lun, i) == 0) 8090 continue; 8091 8092 if (sa_res_key == ctl_get_prkey(lun, i)) { 8093 ctl_clr_prkey(lun, i); 8094 lun->pr_key_count--; 8095 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 8096 } else if (msg->pr.pr_info.res_type != lun->pr_res_type 8097 && (lun->pr_res_type == SPR_TYPE_WR_EX_RO || 8098 lun->pr_res_type == SPR_TYPE_EX_AC_RO)) { 8099 ctl_est_ua(lun, i, CTL_UA_RES_RELEASE); 8100 } 8101 } 8102 lun->pr_res_type = msg->pr.pr_info.res_type; 8103 if (lun->pr_res_type != SPR_TYPE_WR_EX_AR && 8104 lun->pr_res_type != SPR_TYPE_EX_AC_AR) 8105 lun->pr_res_idx = msg->pr.pr_info.residx; 8106 else 8107 lun->pr_res_idx = CTL_PR_ALL_REGISTRANTS; 8108 } 8109 lun->pr_generation++; 8110 8111} 8112 8113 8114int 8115ctl_persistent_reserve_out(struct ctl_scsiio *ctsio) 8116{ 8117 int retval; 8118 u_int32_t param_len; 8119 struct scsi_per_res_out *cdb; 8120 struct ctl_lun *lun; 8121 struct scsi_per_res_out_parms* param; 8122 struct ctl_softc *softc; 8123 uint32_t residx; 8124 uint64_t res_key, sa_res_key, key; 8125 uint8_t type; 8126 union ctl_ha_msg persis_io; 8127 int i; 8128 8129 CTL_DEBUG_PRINT(("ctl_persistent_reserve_out\n")); 8130 8131 retval = CTL_RETVAL_COMPLETE; 8132 8133 cdb = (struct scsi_per_res_out *)ctsio->cdb; 8134 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 8135 softc = lun->ctl_softc; 8136 8137 /* 8138 * We only support whole-LUN scope. The scope & type are ignored for 8139 * register, register and ignore existing key and clear. 8140 * We sometimes ignore scope and type on preempts too!! 8141 * Verify reservation type here as well. 8142 */ 8143 type = cdb->scope_type & SPR_TYPE_MASK; 8144 if ((cdb->action == SPRO_RESERVE) 8145 || (cdb->action == SPRO_RELEASE)) { 8146 if ((cdb->scope_type & SPR_SCOPE_MASK) != SPR_LU_SCOPE) { 8147 ctl_set_invalid_field(/*ctsio*/ ctsio, 8148 /*sks_valid*/ 1, 8149 /*command*/ 1, 8150 /*field*/ 2, 8151 /*bit_valid*/ 1, 8152 /*bit*/ 4); 8153 ctl_done((union ctl_io *)ctsio); 8154 return (CTL_RETVAL_COMPLETE); 8155 } 8156 8157 if (type>8 || type==2 || type==4 || type==0) { 8158 ctl_set_invalid_field(/*ctsio*/ ctsio, 8159 /*sks_valid*/ 1, 8160 /*command*/ 1, 8161 /*field*/ 2, 8162 /*bit_valid*/ 1, 8163 /*bit*/ 0); 8164 ctl_done((union ctl_io *)ctsio); 8165 return (CTL_RETVAL_COMPLETE); 8166 } 8167 } 8168 8169 param_len = scsi_4btoul(cdb->length); 8170 8171 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 8172 ctsio->kern_data_ptr = malloc(param_len, M_CTL, M_WAITOK); 8173 ctsio->kern_data_len = param_len; 8174 ctsio->kern_total_len = param_len; 8175 ctsio->kern_data_resid = 0; 8176 ctsio->kern_rel_offset = 0; 8177 ctsio->kern_sg_entries = 0; 8178 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 8179 ctsio->be_move_done = ctl_config_move_done; 8180 ctl_datamove((union ctl_io *)ctsio); 8181 8182 return (CTL_RETVAL_COMPLETE); 8183 } 8184 8185 param = (struct scsi_per_res_out_parms *)ctsio->kern_data_ptr; 8186 8187 residx = ctl_get_initindex(&ctsio->io_hdr.nexus); 8188 res_key = scsi_8btou64(param->res_key.key); 8189 sa_res_key = scsi_8btou64(param->serv_act_res_key); 8190 8191 /* 8192 * Validate the reservation key here except for SPRO_REG_IGNO 8193 * This must be done for all other service actions 8194 */ 8195 if ((cdb->action & SPRO_ACTION_MASK) != SPRO_REG_IGNO) { 8196 mtx_lock(&lun->lun_lock); 8197 if ((key = ctl_get_prkey(lun, residx)) != 0) { 8198 if (res_key != key) { 8199 /* 8200 * The current key passed in doesn't match 8201 * the one the initiator previously 8202 * registered. 8203 */ 8204 mtx_unlock(&lun->lun_lock); 8205 free(ctsio->kern_data_ptr, M_CTL); 8206 ctl_set_reservation_conflict(ctsio); 8207 ctl_done((union ctl_io *)ctsio); 8208 return (CTL_RETVAL_COMPLETE); 8209 } 8210 } else if ((cdb->action & SPRO_ACTION_MASK) != SPRO_REGISTER) { 8211 /* 8212 * We are not registered 8213 */ 8214 mtx_unlock(&lun->lun_lock); 8215 free(ctsio->kern_data_ptr, M_CTL); 8216 ctl_set_reservation_conflict(ctsio); 8217 ctl_done((union ctl_io *)ctsio); 8218 return (CTL_RETVAL_COMPLETE); 8219 } else if (res_key != 0) { 8220 /* 8221 * We are not registered and trying to register but 8222 * the register key isn't zero. 8223 */ 8224 mtx_unlock(&lun->lun_lock); 8225 free(ctsio->kern_data_ptr, M_CTL); 8226 ctl_set_reservation_conflict(ctsio); 8227 ctl_done((union ctl_io *)ctsio); 8228 return (CTL_RETVAL_COMPLETE); 8229 } 8230 mtx_unlock(&lun->lun_lock); 8231 } 8232 8233 switch (cdb->action & SPRO_ACTION_MASK) { 8234 case SPRO_REGISTER: 8235 case SPRO_REG_IGNO: { 8236 8237#if 0 8238 printf("Registration received\n"); 8239#endif 8240 8241 /* 8242 * We don't support any of these options, as we report in 8243 * the read capabilities request (see 8244 * ctl_persistent_reserve_in(), above). 8245 */ 8246 if ((param->flags & SPR_SPEC_I_PT) 8247 || (param->flags & SPR_ALL_TG_PT) 8248 || (param->flags & SPR_APTPL)) { 8249 int bit_ptr; 8250 8251 if (param->flags & SPR_APTPL) 8252 bit_ptr = 0; 8253 else if (param->flags & SPR_ALL_TG_PT) 8254 bit_ptr = 2; 8255 else /* SPR_SPEC_I_PT */ 8256 bit_ptr = 3; 8257 8258 free(ctsio->kern_data_ptr, M_CTL); 8259 ctl_set_invalid_field(ctsio, 8260 /*sks_valid*/ 1, 8261 /*command*/ 0, 8262 /*field*/ 20, 8263 /*bit_valid*/ 1, 8264 /*bit*/ bit_ptr); 8265 ctl_done((union ctl_io *)ctsio); 8266 return (CTL_RETVAL_COMPLETE); 8267 } 8268 8269 mtx_lock(&lun->lun_lock); 8270 8271 /* 8272 * The initiator wants to clear the 8273 * key/unregister. 8274 */ 8275 if (sa_res_key == 0) { 8276 if ((res_key == 0 8277 && (cdb->action & SPRO_ACTION_MASK) == SPRO_REGISTER) 8278 || ((cdb->action & SPRO_ACTION_MASK) == SPRO_REG_IGNO 8279 && ctl_get_prkey(lun, residx) == 0)) { 8280 mtx_unlock(&lun->lun_lock); 8281 goto done; 8282 } 8283 8284 ctl_clr_prkey(lun, residx); 8285 lun->pr_key_count--; 8286 8287 if (residx == lun->pr_res_idx) { 8288 lun->flags &= ~CTL_LUN_PR_RESERVED; 8289 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8290 8291 if ((lun->pr_res_type == SPR_TYPE_WR_EX_RO || 8292 lun->pr_res_type == SPR_TYPE_EX_AC_RO) && 8293 lun->pr_key_count) { 8294 /* 8295 * If the reservation is a registrants 8296 * only type we need to generate a UA 8297 * for other registered inits. The 8298 * sense code should be RESERVATIONS 8299 * RELEASED 8300 */ 8301 8302 for (i = softc->init_min; i < softc->init_max; i++){ 8303 if (ctl_get_prkey(lun, i) == 0) 8304 continue; 8305 ctl_est_ua(lun, i, 8306 CTL_UA_RES_RELEASE); 8307 } 8308 } 8309 lun->pr_res_type = 0; 8310 } else if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS) { 8311 if (lun->pr_key_count==0) { 8312 lun->flags &= ~CTL_LUN_PR_RESERVED; 8313 lun->pr_res_type = 0; 8314 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8315 } 8316 } 8317 lun->pr_generation++; 8318 mtx_unlock(&lun->lun_lock); 8319 8320 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8321 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8322 persis_io.pr.pr_info.action = CTL_PR_UNREG_KEY; 8323 persis_io.pr.pr_info.residx = residx; 8324 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8325 sizeof(persis_io.pr), M_WAITOK); 8326 } else /* sa_res_key != 0 */ { 8327 8328 /* 8329 * If we aren't registered currently then increment 8330 * the key count and set the registered flag. 8331 */ 8332 ctl_alloc_prkey(lun, residx); 8333 if (ctl_get_prkey(lun, residx) == 0) 8334 lun->pr_key_count++; 8335 ctl_set_prkey(lun, residx, sa_res_key); 8336 lun->pr_generation++; 8337 mtx_unlock(&lun->lun_lock); 8338 8339 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8340 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8341 persis_io.pr.pr_info.action = CTL_PR_REG_KEY; 8342 persis_io.pr.pr_info.residx = residx; 8343 memcpy(persis_io.pr.pr_info.sa_res_key, 8344 param->serv_act_res_key, 8345 sizeof(param->serv_act_res_key)); 8346 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8347 sizeof(persis_io.pr), M_WAITOK); 8348 } 8349 8350 break; 8351 } 8352 case SPRO_RESERVE: 8353#if 0 8354 printf("Reserve executed type %d\n", type); 8355#endif 8356 mtx_lock(&lun->lun_lock); 8357 if (lun->flags & CTL_LUN_PR_RESERVED) { 8358 /* 8359 * if this isn't the reservation holder and it's 8360 * not a "all registrants" type or if the type is 8361 * different then we have a conflict 8362 */ 8363 if ((lun->pr_res_idx != residx 8364 && lun->pr_res_idx != CTL_PR_ALL_REGISTRANTS) 8365 || lun->pr_res_type != type) { 8366 mtx_unlock(&lun->lun_lock); 8367 free(ctsio->kern_data_ptr, M_CTL); 8368 ctl_set_reservation_conflict(ctsio); 8369 ctl_done((union ctl_io *)ctsio); 8370 return (CTL_RETVAL_COMPLETE); 8371 } 8372 mtx_unlock(&lun->lun_lock); 8373 } else /* create a reservation */ { 8374 /* 8375 * If it's not an "all registrants" type record 8376 * reservation holder 8377 */ 8378 if (type != SPR_TYPE_WR_EX_AR 8379 && type != SPR_TYPE_EX_AC_AR) 8380 lun->pr_res_idx = residx; /* Res holder */ 8381 else 8382 lun->pr_res_idx = CTL_PR_ALL_REGISTRANTS; 8383 8384 lun->flags |= CTL_LUN_PR_RESERVED; 8385 lun->pr_res_type = type; 8386 8387 mtx_unlock(&lun->lun_lock); 8388 8389 /* send msg to other side */ 8390 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8391 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8392 persis_io.pr.pr_info.action = CTL_PR_RESERVE; 8393 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8394 persis_io.pr.pr_info.res_type = type; 8395 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8396 sizeof(persis_io.pr), M_WAITOK); 8397 } 8398 break; 8399 8400 case SPRO_RELEASE: 8401 mtx_lock(&lun->lun_lock); 8402 if ((lun->flags & CTL_LUN_PR_RESERVED) == 0) { 8403 /* No reservation exists return good status */ 8404 mtx_unlock(&lun->lun_lock); 8405 goto done; 8406 } 8407 /* 8408 * Is this nexus a reservation holder? 8409 */ 8410 if (lun->pr_res_idx != residx 8411 && lun->pr_res_idx != CTL_PR_ALL_REGISTRANTS) { 8412 /* 8413 * not a res holder return good status but 8414 * do nothing 8415 */ 8416 mtx_unlock(&lun->lun_lock); 8417 goto done; 8418 } 8419 8420 if (lun->pr_res_type != type) { 8421 mtx_unlock(&lun->lun_lock); 8422 free(ctsio->kern_data_ptr, M_CTL); 8423 ctl_set_illegal_pr_release(ctsio); 8424 ctl_done((union ctl_io *)ctsio); 8425 return (CTL_RETVAL_COMPLETE); 8426 } 8427 8428 /* okay to release */ 8429 lun->flags &= ~CTL_LUN_PR_RESERVED; 8430 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8431 lun->pr_res_type = 0; 8432 8433 /* 8434 * If this isn't an exclusive access reservation and NUAR 8435 * is not set, generate UA for all other registrants. 8436 */ 8437 if (type != SPR_TYPE_EX_AC && type != SPR_TYPE_WR_EX && 8438 (lun->MODE_CTRL.queue_flags & SCP_NUAR) == 0) { 8439 for (i = softc->init_min; i < softc->init_max; i++) { 8440 if (i == residx || ctl_get_prkey(lun, i) == 0) 8441 continue; 8442 ctl_est_ua(lun, i, CTL_UA_RES_RELEASE); 8443 } 8444 } 8445 mtx_unlock(&lun->lun_lock); 8446 8447 /* Send msg to other side */ 8448 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8449 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8450 persis_io.pr.pr_info.action = CTL_PR_RELEASE; 8451 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8452 sizeof(persis_io.pr), M_WAITOK); 8453 break; 8454 8455 case SPRO_CLEAR: 8456 /* send msg to other side */ 8457 8458 mtx_lock(&lun->lun_lock); 8459 lun->flags &= ~CTL_LUN_PR_RESERVED; 8460 lun->pr_res_type = 0; 8461 lun->pr_key_count = 0; 8462 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8463 8464 ctl_clr_prkey(lun, residx); 8465 for (i = 0; i < CTL_MAX_INITIATORS; i++) 8466 if (ctl_get_prkey(lun, i) != 0) { 8467 ctl_clr_prkey(lun, i); 8468 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 8469 } 8470 lun->pr_generation++; 8471 mtx_unlock(&lun->lun_lock); 8472 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_CLEAR; 8476 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8477 sizeof(persis_io.pr), M_WAITOK); 8478 break; 8479 8480 case SPRO_PREEMPT: 8481 case SPRO_PRE_ABO: { 8482 int nretval; 8483 8484 nretval = ctl_pro_preempt(softc, lun, res_key, sa_res_key, type, 8485 residx, ctsio, cdb, param); 8486 if (nretval != 0) 8487 return (CTL_RETVAL_COMPLETE); 8488 break; 8489 } 8490 default: 8491 panic("%s: Invalid PR type %#x", __func__, cdb->action); 8492 } 8493 8494done: 8495 free(ctsio->kern_data_ptr, M_CTL); 8496 ctl_set_success(ctsio); 8497 ctl_done((union ctl_io *)ctsio); 8498 8499 return (retval); 8500} 8501 8502/* 8503 * This routine is for handling a message from the other SC pertaining to 8504 * persistent reserve out. All the error checking will have been done 8505 * so only perorming the action need be done here to keep the two 8506 * in sync. 8507 */ 8508static void 8509ctl_hndl_per_res_out_on_other_sc(union ctl_ha_msg *msg) 8510{ 8511 struct ctl_softc *softc = control_softc; 8512 struct ctl_lun *lun; 8513 int i; 8514 uint32_t residx, targ_lun; 8515 8516 targ_lun = msg->hdr.nexus.targ_mapped_lun; 8517 mtx_lock(&softc->ctl_lock); 8518 if (targ_lun >= CTL_MAX_LUNS || 8519 (lun = softc->ctl_luns[targ_lun]) == NULL) { 8520 mtx_unlock(&softc->ctl_lock); 8521 return; 8522 } 8523 mtx_lock(&lun->lun_lock); 8524 mtx_unlock(&softc->ctl_lock); 8525 if (lun->flags & CTL_LUN_DISABLED) { 8526 mtx_unlock(&lun->lun_lock); 8527 return; 8528 } 8529 residx = ctl_get_initindex(&msg->hdr.nexus); 8530 switch(msg->pr.pr_info.action) { 8531 case CTL_PR_REG_KEY: 8532 ctl_alloc_prkey(lun, msg->pr.pr_info.residx); 8533 if (ctl_get_prkey(lun, msg->pr.pr_info.residx) == 0) 8534 lun->pr_key_count++; 8535 ctl_set_prkey(lun, msg->pr.pr_info.residx, 8536 scsi_8btou64(msg->pr.pr_info.sa_res_key)); 8537 lun->pr_generation++; 8538 break; 8539 8540 case CTL_PR_UNREG_KEY: 8541 ctl_clr_prkey(lun, msg->pr.pr_info.residx); 8542 lun->pr_key_count--; 8543 8544 /* XXX Need to see if the reservation has been released */ 8545 /* if so do we need to generate UA? */ 8546 if (msg->pr.pr_info.residx == lun->pr_res_idx) { 8547 lun->flags &= ~CTL_LUN_PR_RESERVED; 8548 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8549 8550 if ((lun->pr_res_type == SPR_TYPE_WR_EX_RO || 8551 lun->pr_res_type == SPR_TYPE_EX_AC_RO) && 8552 lun->pr_key_count) { 8553 /* 8554 * If the reservation is a registrants 8555 * only type we need to generate a UA 8556 * for other registered inits. The 8557 * sense code should be RESERVATIONS 8558 * RELEASED 8559 */ 8560 8561 for (i = softc->init_min; i < softc->init_max; i++) { 8562 if (ctl_get_prkey(lun, i) == 0) 8563 continue; 8564 8565 ctl_est_ua(lun, i, CTL_UA_RES_RELEASE); 8566 } 8567 } 8568 lun->pr_res_type = 0; 8569 } else if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS) { 8570 if (lun->pr_key_count==0) { 8571 lun->flags &= ~CTL_LUN_PR_RESERVED; 8572 lun->pr_res_type = 0; 8573 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8574 } 8575 } 8576 lun->pr_generation++; 8577 break; 8578 8579 case CTL_PR_RESERVE: 8580 lun->flags |= CTL_LUN_PR_RESERVED; 8581 lun->pr_res_type = msg->pr.pr_info.res_type; 8582 lun->pr_res_idx = msg->pr.pr_info.residx; 8583 8584 break; 8585 8586 case CTL_PR_RELEASE: 8587 /* 8588 * If this isn't an exclusive access reservation and NUAR 8589 * is not set, generate UA for all other registrants. 8590 */ 8591 if (lun->pr_res_type != SPR_TYPE_EX_AC && 8592 lun->pr_res_type != SPR_TYPE_WR_EX && 8593 (lun->MODE_CTRL.queue_flags & SCP_NUAR) == 0) { 8594 for (i = softc->init_min; i < softc->init_max; i++) 8595 if (i == residx || ctl_get_prkey(lun, i) == 0) 8596 continue; 8597 ctl_est_ua(lun, i, CTL_UA_RES_RELEASE); 8598 } 8599 8600 lun->flags &= ~CTL_LUN_PR_RESERVED; 8601 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8602 lun->pr_res_type = 0; 8603 break; 8604 8605 case CTL_PR_PREEMPT: 8606 ctl_pro_preempt_other(lun, msg); 8607 break; 8608 case CTL_PR_CLEAR: 8609 lun->flags &= ~CTL_LUN_PR_RESERVED; 8610 lun->pr_res_type = 0; 8611 lun->pr_key_count = 0; 8612 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8613 8614 for (i=0; i < CTL_MAX_INITIATORS; i++) { 8615 if (ctl_get_prkey(lun, i) == 0) 8616 continue; 8617 ctl_clr_prkey(lun, i); 8618 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 8619 } 8620 lun->pr_generation++; 8621 break; 8622 } 8623 8624 mtx_unlock(&lun->lun_lock); 8625} 8626 8627int 8628ctl_read_write(struct ctl_scsiio *ctsio) 8629{ 8630 struct ctl_lun *lun; 8631 struct ctl_lba_len_flags *lbalen; 8632 uint64_t lba; 8633 uint32_t num_blocks; 8634 int flags, retval; 8635 int isread; 8636 8637 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 8638 8639 CTL_DEBUG_PRINT(("ctl_read_write: command: %#x\n", ctsio->cdb[0])); 8640 8641 flags = 0; 8642 isread = ctsio->cdb[0] == READ_6 || ctsio->cdb[0] == READ_10 8643 || ctsio->cdb[0] == READ_12 || ctsio->cdb[0] == READ_16; 8644 switch (ctsio->cdb[0]) { 8645 case READ_6: 8646 case WRITE_6: { 8647 struct scsi_rw_6 *cdb; 8648 8649 cdb = (struct scsi_rw_6 *)ctsio->cdb; 8650 8651 lba = scsi_3btoul(cdb->addr); 8652 /* only 5 bits are valid in the most significant address byte */ 8653 lba &= 0x1fffff; 8654 num_blocks = cdb->length; 8655 /* 8656 * This is correct according to SBC-2. 8657 */ 8658 if (num_blocks == 0) 8659 num_blocks = 256; 8660 break; 8661 } 8662 case READ_10: 8663 case WRITE_10: { 8664 struct scsi_rw_10 *cdb; 8665 8666 cdb = (struct scsi_rw_10 *)ctsio->cdb; 8667 if (cdb->byte2 & SRW10_FUA) 8668 flags |= CTL_LLF_FUA; 8669 if (cdb->byte2 & SRW10_DPO) 8670 flags |= CTL_LLF_DPO; 8671 lba = scsi_4btoul(cdb->addr); 8672 num_blocks = scsi_2btoul(cdb->length); 8673 break; 8674 } 8675 case WRITE_VERIFY_10: { 8676 struct scsi_write_verify_10 *cdb; 8677 8678 cdb = (struct scsi_write_verify_10 *)ctsio->cdb; 8679 flags |= CTL_LLF_FUA; 8680 if (cdb->byte2 & SWV_DPO) 8681 flags |= CTL_LLF_DPO; 8682 lba = scsi_4btoul(cdb->addr); 8683 num_blocks = scsi_2btoul(cdb->length); 8684 break; 8685 } 8686 case READ_12: 8687 case WRITE_12: { 8688 struct scsi_rw_12 *cdb; 8689 8690 cdb = (struct scsi_rw_12 *)ctsio->cdb; 8691 if (cdb->byte2 & SRW12_FUA) 8692 flags |= CTL_LLF_FUA; 8693 if (cdb->byte2 & SRW12_DPO) 8694 flags |= CTL_LLF_DPO; 8695 lba = scsi_4btoul(cdb->addr); 8696 num_blocks = scsi_4btoul(cdb->length); 8697 break; 8698 } 8699 case WRITE_VERIFY_12: { 8700 struct scsi_write_verify_12 *cdb; 8701 8702 cdb = (struct scsi_write_verify_12 *)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_4btoul(cdb->length); 8708 break; 8709 } 8710 case READ_16: 8711 case WRITE_16: { 8712 struct scsi_rw_16 *cdb; 8713 8714 cdb = (struct scsi_rw_16 *)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_8btou64(cdb->addr); 8720 num_blocks = scsi_4btoul(cdb->length); 8721 break; 8722 } 8723 case WRITE_ATOMIC_16: { 8724 struct scsi_write_atomic_16 *cdb; 8725 8726 if (lun->be_lun->atomicblock == 0) { 8727 ctl_set_invalid_opcode(ctsio); 8728 ctl_done((union ctl_io *)ctsio); 8729 return (CTL_RETVAL_COMPLETE); 8730 } 8731 8732 cdb = (struct scsi_write_atomic_16 *)ctsio->cdb; 8733 if (cdb->byte2 & SRW12_FUA) 8734 flags |= CTL_LLF_FUA; 8735 if (cdb->byte2 & SRW12_DPO) 8736 flags |= CTL_LLF_DPO; 8737 lba = scsi_8btou64(cdb->addr); 8738 num_blocks = scsi_2btoul(cdb->length); 8739 if (num_blocks > lun->be_lun->atomicblock) { 8740 ctl_set_invalid_field(ctsio, /*sks_valid*/ 1, 8741 /*command*/ 1, /*field*/ 12, /*bit_valid*/ 0, 8742 /*bit*/ 0); 8743 ctl_done((union ctl_io *)ctsio); 8744 return (CTL_RETVAL_COMPLETE); 8745 } 8746 break; 8747 } 8748 case WRITE_VERIFY_16: { 8749 struct scsi_write_verify_16 *cdb; 8750 8751 cdb = (struct scsi_write_verify_16 *)ctsio->cdb; 8752 flags |= CTL_LLF_FUA; 8753 if (cdb->byte2 & SWV_DPO) 8754 flags |= CTL_LLF_DPO; 8755 lba = scsi_8btou64(cdb->addr); 8756 num_blocks = scsi_4btoul(cdb->length); 8757 break; 8758 } 8759 default: 8760 /* 8761 * We got a command we don't support. This shouldn't 8762 * happen, commands should be filtered out above us. 8763 */ 8764 ctl_set_invalid_opcode(ctsio); 8765 ctl_done((union ctl_io *)ctsio); 8766 8767 return (CTL_RETVAL_COMPLETE); 8768 break; /* NOTREACHED */ 8769 } 8770 8771 /* 8772 * The first check is to make sure we're in bounds, the second 8773 * check is to catch wrap-around problems. If the lba + num blocks 8774 * is less than the lba, then we've wrapped around and the block 8775 * range is invalid anyway. 8776 */ 8777 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 8778 || ((lba + num_blocks) < lba)) { 8779 ctl_set_lba_out_of_range(ctsio, 8780 MAX(lba, lun->be_lun->maxlba + 1)); 8781 ctl_done((union ctl_io *)ctsio); 8782 return (CTL_RETVAL_COMPLETE); 8783 } 8784 8785 /* 8786 * According to SBC-3, a transfer length of 0 is not an error. 8787 * Note that this cannot happen with WRITE(6) or READ(6), since 0 8788 * translates to 256 blocks for those commands. 8789 */ 8790 if (num_blocks == 0) { 8791 ctl_set_success(ctsio); 8792 ctl_done((union ctl_io *)ctsio); 8793 return (CTL_RETVAL_COMPLETE); 8794 } 8795 8796 /* Set FUA and/or DPO if caches are disabled. */ 8797 if (isread) { 8798 if ((lun->MODE_CACHING.flags1 & SCP_RCD) != 0) 8799 flags |= CTL_LLF_FUA | CTL_LLF_DPO; 8800 } else { 8801 if ((lun->MODE_CACHING.flags1 & SCP_WCE) == 0) 8802 flags |= CTL_LLF_FUA; 8803 } 8804 8805 lbalen = (struct ctl_lba_len_flags *) 8806 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 8807 lbalen->lba = lba; 8808 lbalen->len = num_blocks; 8809 lbalen->flags = (isread ? CTL_LLF_READ : CTL_LLF_WRITE) | flags; 8810 8811 ctsio->kern_total_len = num_blocks * lun->be_lun->blocksize; 8812 ctsio->kern_rel_offset = 0; 8813 8814 CTL_DEBUG_PRINT(("ctl_read_write: calling data_submit()\n")); 8815 8816 retval = lun->backend->data_submit((union ctl_io *)ctsio); 8817 return (retval); 8818} 8819 8820static int 8821ctl_cnw_cont(union ctl_io *io) 8822{ 8823 struct ctl_scsiio *ctsio; 8824 struct ctl_lun *lun; 8825 struct ctl_lba_len_flags *lbalen; 8826 int retval; 8827 8828 ctsio = &io->scsiio; 8829 ctsio->io_hdr.status = CTL_STATUS_NONE; 8830 ctsio->io_hdr.flags &= ~CTL_FLAG_IO_CONT; 8831 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 8832 lbalen = (struct ctl_lba_len_flags *) 8833 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 8834 lbalen->flags &= ~CTL_LLF_COMPARE; 8835 lbalen->flags |= CTL_LLF_WRITE; 8836 8837 CTL_DEBUG_PRINT(("ctl_cnw_cont: calling data_submit()\n")); 8838 retval = lun->backend->data_submit((union ctl_io *)ctsio); 8839 return (retval); 8840} 8841 8842int 8843ctl_cnw(struct ctl_scsiio *ctsio) 8844{ 8845 struct ctl_lun *lun; 8846 struct ctl_lba_len_flags *lbalen; 8847 uint64_t lba; 8848 uint32_t num_blocks; 8849 int flags, retval; 8850 8851 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 8852 8853 CTL_DEBUG_PRINT(("ctl_cnw: command: %#x\n", ctsio->cdb[0])); 8854 8855 flags = 0; 8856 switch (ctsio->cdb[0]) { 8857 case COMPARE_AND_WRITE: { 8858 struct scsi_compare_and_write *cdb; 8859 8860 cdb = (struct scsi_compare_and_write *)ctsio->cdb; 8861 if (cdb->byte2 & SRW10_FUA) 8862 flags |= CTL_LLF_FUA; 8863 if (cdb->byte2 & SRW10_DPO) 8864 flags |= CTL_LLF_DPO; 8865 lba = scsi_8btou64(cdb->addr); 8866 num_blocks = cdb->length; 8867 break; 8868 } 8869 default: 8870 /* 8871 * We got a command we don't support. This shouldn't 8872 * happen, commands should be filtered out above us. 8873 */ 8874 ctl_set_invalid_opcode(ctsio); 8875 ctl_done((union ctl_io *)ctsio); 8876 8877 return (CTL_RETVAL_COMPLETE); 8878 break; /* NOTREACHED */ 8879 } 8880 8881 /* 8882 * The first check is to make sure we're in bounds, the second 8883 * check is to catch wrap-around problems. If the lba + num blocks 8884 * is less than the lba, then we've wrapped around and the block 8885 * range is invalid anyway. 8886 */ 8887 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 8888 || ((lba + num_blocks) < lba)) { 8889 ctl_set_lba_out_of_range(ctsio, 8890 MAX(lba, lun->be_lun->maxlba + 1)); 8891 ctl_done((union ctl_io *)ctsio); 8892 return (CTL_RETVAL_COMPLETE); 8893 } 8894 8895 /* 8896 * According to SBC-3, a transfer length of 0 is not an error. 8897 */ 8898 if (num_blocks == 0) { 8899 ctl_set_success(ctsio); 8900 ctl_done((union ctl_io *)ctsio); 8901 return (CTL_RETVAL_COMPLETE); 8902 } 8903 8904 /* Set FUA if write cache is disabled. */ 8905 if ((lun->MODE_CACHING.flags1 & SCP_WCE) == 0) 8906 flags |= CTL_LLF_FUA; 8907 8908 ctsio->kern_total_len = 2 * num_blocks * lun->be_lun->blocksize; 8909 ctsio->kern_rel_offset = 0; 8910 8911 /* 8912 * Set the IO_CONT flag, so that if this I/O gets passed to 8913 * ctl_data_submit_done(), it'll get passed back to 8914 * ctl_ctl_cnw_cont() for further processing. 8915 */ 8916 ctsio->io_hdr.flags |= CTL_FLAG_IO_CONT; 8917 ctsio->io_cont = ctl_cnw_cont; 8918 8919 lbalen = (struct ctl_lba_len_flags *) 8920 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 8921 lbalen->lba = lba; 8922 lbalen->len = num_blocks; 8923 lbalen->flags = CTL_LLF_COMPARE | flags; 8924 8925 CTL_DEBUG_PRINT(("ctl_cnw: calling data_submit()\n")); 8926 retval = lun->backend->data_submit((union ctl_io *)ctsio); 8927 return (retval); 8928} 8929 8930int 8931ctl_verify(struct ctl_scsiio *ctsio) 8932{ 8933 struct ctl_lun *lun; 8934 struct ctl_lba_len_flags *lbalen; 8935 uint64_t lba; 8936 uint32_t num_blocks; 8937 int bytchk, flags; 8938 int retval; 8939 8940 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 8941 8942 CTL_DEBUG_PRINT(("ctl_verify: command: %#x\n", ctsio->cdb[0])); 8943 8944 bytchk = 0; 8945 flags = CTL_LLF_FUA; 8946 switch (ctsio->cdb[0]) { 8947 case VERIFY_10: { 8948 struct scsi_verify_10 *cdb; 8949 8950 cdb = (struct scsi_verify_10 *)ctsio->cdb; 8951 if (cdb->byte2 & SVFY_BYTCHK) 8952 bytchk = 1; 8953 if (cdb->byte2 & SVFY_DPO) 8954 flags |= CTL_LLF_DPO; 8955 lba = scsi_4btoul(cdb->addr); 8956 num_blocks = scsi_2btoul(cdb->length); 8957 break; 8958 } 8959 case VERIFY_12: { 8960 struct scsi_verify_12 *cdb; 8961 8962 cdb = (struct scsi_verify_12 *)ctsio->cdb; 8963 if (cdb->byte2 & SVFY_BYTCHK) 8964 bytchk = 1; 8965 if (cdb->byte2 & SVFY_DPO) 8966 flags |= CTL_LLF_DPO; 8967 lba = scsi_4btoul(cdb->addr); 8968 num_blocks = scsi_4btoul(cdb->length); 8969 break; 8970 } 8971 case VERIFY_16: { 8972 struct scsi_rw_16 *cdb; 8973 8974 cdb = (struct scsi_rw_16 *)ctsio->cdb; 8975 if (cdb->byte2 & SVFY_BYTCHK) 8976 bytchk = 1; 8977 if (cdb->byte2 & SVFY_DPO) 8978 flags |= CTL_LLF_DPO; 8979 lba = scsi_8btou64(cdb->addr); 8980 num_blocks = scsi_4btoul(cdb->length); 8981 break; 8982 } 8983 default: 8984 /* 8985 * We got a command we don't support. This shouldn't 8986 * happen, commands should be filtered out above us. 8987 */ 8988 ctl_set_invalid_opcode(ctsio); 8989 ctl_done((union ctl_io *)ctsio); 8990 return (CTL_RETVAL_COMPLETE); 8991 } 8992 8993 /* 8994 * The first check is to make sure we're in bounds, the second 8995 * check is to catch wrap-around problems. If the lba + num blocks 8996 * is less than the lba, then we've wrapped around and the block 8997 * range is invalid anyway. 8998 */ 8999 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 9000 || ((lba + num_blocks) < lba)) { 9001 ctl_set_lba_out_of_range(ctsio, 9002 MAX(lba, lun->be_lun->maxlba + 1)); 9003 ctl_done((union ctl_io *)ctsio); 9004 return (CTL_RETVAL_COMPLETE); 9005 } 9006 9007 /* 9008 * According to SBC-3, a transfer length of 0 is not an error. 9009 */ 9010 if (num_blocks == 0) { 9011 ctl_set_success(ctsio); 9012 ctl_done((union ctl_io *)ctsio); 9013 return (CTL_RETVAL_COMPLETE); 9014 } 9015 9016 lbalen = (struct ctl_lba_len_flags *) 9017 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 9018 lbalen->lba = lba; 9019 lbalen->len = num_blocks; 9020 if (bytchk) { 9021 lbalen->flags = CTL_LLF_COMPARE | flags; 9022 ctsio->kern_total_len = num_blocks * lun->be_lun->blocksize; 9023 } else { 9024 lbalen->flags = CTL_LLF_VERIFY | flags; 9025 ctsio->kern_total_len = 0; 9026 } 9027 ctsio->kern_rel_offset = 0; 9028 9029 CTL_DEBUG_PRINT(("ctl_verify: calling data_submit()\n")); 9030 retval = lun->backend->data_submit((union ctl_io *)ctsio); 9031 return (retval); 9032} 9033 9034int 9035ctl_report_luns(struct ctl_scsiio *ctsio) 9036{ 9037 struct ctl_softc *softc; 9038 struct scsi_report_luns *cdb; 9039 struct scsi_report_luns_data *lun_data; 9040 struct ctl_lun *lun, *request_lun; 9041 struct ctl_port *port; 9042 int num_luns, retval; 9043 uint32_t alloc_len, lun_datalen; 9044 int num_filled; 9045 uint32_t initidx, targ_lun_id, lun_id; 9046 9047 retval = CTL_RETVAL_COMPLETE; 9048 cdb = (struct scsi_report_luns *)ctsio->cdb; 9049 port = ctl_io_port(&ctsio->io_hdr); 9050 softc = port->ctl_softc; 9051 9052 CTL_DEBUG_PRINT(("ctl_report_luns\n")); 9053 9054 mtx_lock(&softc->ctl_lock); 9055 num_luns = 0; 9056 for (targ_lun_id = 0; targ_lun_id < CTL_MAX_LUNS; targ_lun_id++) { 9057 if (ctl_lun_map_from_port(port, targ_lun_id) != UINT32_MAX) 9058 num_luns++; 9059 } 9060 mtx_unlock(&softc->ctl_lock); 9061 9062 switch (cdb->select_report) { 9063 case RPL_REPORT_DEFAULT: 9064 case RPL_REPORT_ALL: 9065 case RPL_REPORT_NONSUBSID: 9066 break; 9067 case RPL_REPORT_WELLKNOWN: 9068 case RPL_REPORT_ADMIN: 9069 case RPL_REPORT_CONGLOM: 9070 num_luns = 0; 9071 break; 9072 default: 9073 ctl_set_invalid_field(ctsio, 9074 /*sks_valid*/ 1, 9075 /*command*/ 1, 9076 /*field*/ 2, 9077 /*bit_valid*/ 0, 9078 /*bit*/ 0); 9079 ctl_done((union ctl_io *)ctsio); 9080 return (retval); 9081 break; /* NOTREACHED */ 9082 } 9083 9084 alloc_len = scsi_4btoul(cdb->length); 9085 /* 9086 * The initiator has to allocate at least 16 bytes for this request, 9087 * so he can at least get the header and the first LUN. Otherwise 9088 * we reject the request (per SPC-3 rev 14, section 6.21). 9089 */ 9090 if (alloc_len < (sizeof(struct scsi_report_luns_data) + 9091 sizeof(struct scsi_report_luns_lundata))) { 9092 ctl_set_invalid_field(ctsio, 9093 /*sks_valid*/ 1, 9094 /*command*/ 1, 9095 /*field*/ 6, 9096 /*bit_valid*/ 0, 9097 /*bit*/ 0); 9098 ctl_done((union ctl_io *)ctsio); 9099 return (retval); 9100 } 9101 9102 request_lun = (struct ctl_lun *) 9103 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9104 9105 lun_datalen = sizeof(*lun_data) + 9106 (num_luns * sizeof(struct scsi_report_luns_lundata)); 9107 9108 ctsio->kern_data_ptr = malloc(lun_datalen, M_CTL, M_WAITOK | M_ZERO); 9109 lun_data = (struct scsi_report_luns_data *)ctsio->kern_data_ptr; 9110 ctsio->kern_sg_entries = 0; 9111 9112 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 9113 9114 mtx_lock(&softc->ctl_lock); 9115 for (targ_lun_id = 0, num_filled = 0; targ_lun_id < CTL_MAX_LUNS && num_filled < num_luns; targ_lun_id++) { 9116 lun_id = ctl_lun_map_from_port(port, targ_lun_id); 9117 if (lun_id == UINT32_MAX) 9118 continue; 9119 lun = softc->ctl_luns[lun_id]; 9120 if (lun == NULL) 9121 continue; 9122 9123 be64enc(lun_data->luns[num_filled++].lundata, 9124 ctl_encode_lun(targ_lun_id)); 9125 9126 /* 9127 * According to SPC-3, rev 14 section 6.21: 9128 * 9129 * "The execution of a REPORT LUNS command to any valid and 9130 * installed logical unit shall clear the REPORTED LUNS DATA 9131 * HAS CHANGED unit attention condition for all logical 9132 * units of that target with respect to the requesting 9133 * initiator. A valid and installed logical unit is one 9134 * having a PERIPHERAL QUALIFIER of 000b in the standard 9135 * INQUIRY data (see 6.4.2)." 9136 * 9137 * If request_lun is NULL, the LUN this report luns command 9138 * was issued to is either disabled or doesn't exist. In that 9139 * case, we shouldn't clear any pending lun change unit 9140 * attention. 9141 */ 9142 if (request_lun != NULL) { 9143 mtx_lock(&lun->lun_lock); 9144 ctl_clr_ua(lun, initidx, CTL_UA_LUN_CHANGE); 9145 mtx_unlock(&lun->lun_lock); 9146 } 9147 } 9148 mtx_unlock(&softc->ctl_lock); 9149 9150 /* 9151 * It's quite possible that we've returned fewer LUNs than we allocated 9152 * space for. Trim it. 9153 */ 9154 lun_datalen = sizeof(*lun_data) + 9155 (num_filled * sizeof(struct scsi_report_luns_lundata)); 9156 9157 if (lun_datalen < alloc_len) { 9158 ctsio->residual = alloc_len - lun_datalen; 9159 ctsio->kern_data_len = lun_datalen; 9160 ctsio->kern_total_len = lun_datalen; 9161 } else { 9162 ctsio->residual = 0; 9163 ctsio->kern_data_len = alloc_len; 9164 ctsio->kern_total_len = alloc_len; 9165 } 9166 ctsio->kern_data_resid = 0; 9167 ctsio->kern_rel_offset = 0; 9168 ctsio->kern_sg_entries = 0; 9169 9170 /* 9171 * We set this to the actual data length, regardless of how much 9172 * space we actually have to return results. If the user looks at 9173 * this value, he'll know whether or not he allocated enough space 9174 * and reissue the command if necessary. We don't support well 9175 * known logical units, so if the user asks for that, return none. 9176 */ 9177 scsi_ulto4b(lun_datalen - 8, lun_data->length); 9178 9179 /* 9180 * We can only return SCSI_STATUS_CHECK_COND when we can't satisfy 9181 * this request. 9182 */ 9183 ctl_set_success(ctsio); 9184 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9185 ctsio->be_move_done = ctl_config_move_done; 9186 ctl_datamove((union ctl_io *)ctsio); 9187 return (retval); 9188} 9189 9190int 9191ctl_request_sense(struct ctl_scsiio *ctsio) 9192{ 9193 struct scsi_request_sense *cdb; 9194 struct scsi_sense_data *sense_ptr; 9195 struct ctl_softc *softc; 9196 struct ctl_lun *lun; 9197 uint32_t initidx; 9198 int have_error; 9199 u_int sense_len = SSD_FULL_SIZE; 9200 scsi_sense_data_type sense_format; 9201 ctl_ua_type ua_type; 9202 uint8_t asc = 0, ascq = 0; 9203 9204 cdb = (struct scsi_request_sense *)ctsio->cdb; 9205 9206 softc = control_softc; 9207 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9208 9209 CTL_DEBUG_PRINT(("ctl_request_sense\n")); 9210 9211 /* 9212 * Determine which sense format the user wants. 9213 */ 9214 if (cdb->byte2 & SRS_DESC) 9215 sense_format = SSD_TYPE_DESC; 9216 else 9217 sense_format = SSD_TYPE_FIXED; 9218 9219 ctsio->kern_data_ptr = malloc(sizeof(*sense_ptr), M_CTL, M_WAITOK); 9220 sense_ptr = (struct scsi_sense_data *)ctsio->kern_data_ptr; 9221 ctsio->kern_sg_entries = 0; 9222 9223 /* 9224 * struct scsi_sense_data, which is currently set to 256 bytes, is 9225 * larger than the largest allowed value for the length field in the 9226 * REQUEST SENSE CDB, which is 252 bytes as of SPC-4. 9227 */ 9228 ctsio->residual = 0; 9229 ctsio->kern_data_len = cdb->length; 9230 ctsio->kern_total_len = cdb->length; 9231 9232 ctsio->kern_data_resid = 0; 9233 ctsio->kern_rel_offset = 0; 9234 ctsio->kern_sg_entries = 0; 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#ifdef CTL_WITH_CA 9260 if (ctl_is_set(lun->have_ca, initidx)) { 9261 scsi_sense_data_type stored_format; 9262 9263 /* 9264 * Check to see which sense format was used for the stored 9265 * sense data. 9266 */ 9267 stored_format = scsi_sense_type(&lun->pending_sense[initidx]); 9268 9269 /* 9270 * If the user requested a different sense format than the 9271 * one we stored, then we need to convert it to the other 9272 * format. If we're going from descriptor to fixed format 9273 * sense data, we may lose things in translation, depending 9274 * on what options were used. 9275 * 9276 * If the stored format is SSD_TYPE_NONE (i.e. invalid), 9277 * for some reason we'll just copy it out as-is. 9278 */ 9279 if ((stored_format == SSD_TYPE_FIXED) 9280 && (sense_format == SSD_TYPE_DESC)) 9281 ctl_sense_to_desc((struct scsi_sense_data_fixed *) 9282 &lun->pending_sense[initidx], 9283 (struct scsi_sense_data_desc *)sense_ptr); 9284 else if ((stored_format == SSD_TYPE_DESC) 9285 && (sense_format == SSD_TYPE_FIXED)) 9286 ctl_sense_to_fixed((struct scsi_sense_data_desc *) 9287 &lun->pending_sense[initidx], 9288 (struct scsi_sense_data_fixed *)sense_ptr); 9289 else 9290 memcpy(sense_ptr, &lun->pending_sense[initidx], 9291 MIN(sizeof(*sense_ptr), 9292 sizeof(lun->pending_sense[initidx]))); 9293 9294 ctl_clear_mask(lun->have_ca, initidx); 9295 have_error = 1; 9296 } else 9297#endif 9298 if (have_error == 0) { 9299 ua_type = ctl_build_ua(lun, initidx, sense_ptr, &sense_len, 9300 sense_format); 9301 if (ua_type != CTL_UA_NONE) 9302 have_error = 1; 9303 } 9304 if (have_error == 0) { 9305 /* 9306 * Report informational exception if have one and allowed. 9307 */ 9308 if (lun->MODE_IE.mrie != SIEP_MRIE_NO) { 9309 asc = lun->ie_asc; 9310 ascq = lun->ie_ascq; 9311 } 9312 ctl_set_sense_data(sense_ptr, &sense_len, lun, sense_format, 9313 /*current_error*/ 1, 9314 /*sense_key*/ SSD_KEY_NO_SENSE, 9315 /*asc*/ asc, 9316 /*ascq*/ ascq, 9317 SSD_ELEM_NONE); 9318 } 9319 mtx_unlock(&lun->lun_lock); 9320 9321send: 9322 /* 9323 * We report the SCSI status as OK, since the status of the command 9324 * itself is OK. We're reporting sense as parameter data. 9325 */ 9326 ctl_set_success(ctsio); 9327 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9328 ctsio->be_move_done = ctl_config_move_done; 9329 ctl_datamove((union ctl_io *)ctsio); 9330 return (CTL_RETVAL_COMPLETE); 9331} 9332 9333int 9334ctl_tur(struct ctl_scsiio *ctsio) 9335{ 9336 9337 CTL_DEBUG_PRINT(("ctl_tur\n")); 9338 9339 ctl_set_success(ctsio); 9340 ctl_done((union ctl_io *)ctsio); 9341 9342 return (CTL_RETVAL_COMPLETE); 9343} 9344 9345/* 9346 * SCSI VPD page 0x00, the Supported VPD Pages page. 9347 */ 9348static int 9349ctl_inquiry_evpd_supported(struct ctl_scsiio *ctsio, int alloc_len) 9350{ 9351 struct scsi_vpd_supported_pages *pages; 9352 int sup_page_size; 9353 struct ctl_lun *lun; 9354 int p; 9355 9356 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9357 9358 sup_page_size = sizeof(struct scsi_vpd_supported_pages) * 9359 SCSI_EVPD_NUM_SUPPORTED_PAGES; 9360 ctsio->kern_data_ptr = malloc(sup_page_size, M_CTL, M_WAITOK | M_ZERO); 9361 pages = (struct scsi_vpd_supported_pages *)ctsio->kern_data_ptr; 9362 ctsio->kern_sg_entries = 0; 9363 9364 if (sup_page_size < alloc_len) { 9365 ctsio->residual = alloc_len - sup_page_size; 9366 ctsio->kern_data_len = sup_page_size; 9367 ctsio->kern_total_len = sup_page_size; 9368 } else { 9369 ctsio->residual = 0; 9370 ctsio->kern_data_len = alloc_len; 9371 ctsio->kern_total_len = alloc_len; 9372 } 9373 ctsio->kern_data_resid = 0; 9374 ctsio->kern_rel_offset = 0; 9375 ctsio->kern_sg_entries = 0; 9376 9377 /* 9378 * The control device is always connected. The disk device, on the 9379 * other hand, may not be online all the time. Need to change this 9380 * to figure out whether the disk device is actually online or not. 9381 */ 9382 if (lun != NULL) 9383 pages->device = (SID_QUAL_LU_CONNECTED << 5) | 9384 lun->be_lun->lun_type; 9385 else 9386 pages->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9387 9388 p = 0; 9389 /* Supported VPD pages */ 9390 pages->page_list[p++] = SVPD_SUPPORTED_PAGES; 9391 /* Serial Number */ 9392 pages->page_list[p++] = SVPD_UNIT_SERIAL_NUMBER; 9393 /* Device Identification */ 9394 pages->page_list[p++] = SVPD_DEVICE_ID; 9395 /* Extended INQUIRY Data */ 9396 pages->page_list[p++] = SVPD_EXTENDED_INQUIRY_DATA; 9397 /* Mode Page Policy */ 9398 pages->page_list[p++] = SVPD_MODE_PAGE_POLICY; 9399 /* SCSI Ports */ 9400 pages->page_list[p++] = SVPD_SCSI_PORTS; 9401 /* Third-party Copy */ 9402 pages->page_list[p++] = SVPD_SCSI_TPC; 9403 if (lun != NULL && lun->be_lun->lun_type == T_DIRECT) { 9404 /* Block limits */ 9405 pages->page_list[p++] = SVPD_BLOCK_LIMITS; 9406 /* Block Device Characteristics */ 9407 pages->page_list[p++] = SVPD_BDC; 9408 /* Logical Block Provisioning */ 9409 pages->page_list[p++] = SVPD_LBP; 9410 } 9411 pages->length = p; 9412 9413 ctl_set_success(ctsio); 9414 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9415 ctsio->be_move_done = ctl_config_move_done; 9416 ctl_datamove((union ctl_io *)ctsio); 9417 return (CTL_RETVAL_COMPLETE); 9418} 9419 9420/* 9421 * SCSI VPD page 0x80, the Unit Serial Number page. 9422 */ 9423static int 9424ctl_inquiry_evpd_serial(struct ctl_scsiio *ctsio, int alloc_len) 9425{ 9426 struct scsi_vpd_unit_serial_number *sn_ptr; 9427 struct ctl_lun *lun; 9428 int data_len; 9429 9430 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9431 9432 data_len = 4 + CTL_SN_LEN; 9433 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9434 sn_ptr = (struct scsi_vpd_unit_serial_number *)ctsio->kern_data_ptr; 9435 if (data_len < alloc_len) { 9436 ctsio->residual = alloc_len - data_len; 9437 ctsio->kern_data_len = data_len; 9438 ctsio->kern_total_len = data_len; 9439 } else { 9440 ctsio->residual = 0; 9441 ctsio->kern_data_len = alloc_len; 9442 ctsio->kern_total_len = alloc_len; 9443 } 9444 ctsio->kern_data_resid = 0; 9445 ctsio->kern_rel_offset = 0; 9446 ctsio->kern_sg_entries = 0; 9447 9448 /* 9449 * The control device is always connected. The disk device, on the 9450 * other hand, may not be online all the time. Need to change this 9451 * to figure out whether the disk device is actually online or not. 9452 */ 9453 if (lun != NULL) 9454 sn_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9455 lun->be_lun->lun_type; 9456 else 9457 sn_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9458 9459 sn_ptr->page_code = SVPD_UNIT_SERIAL_NUMBER; 9460 sn_ptr->length = CTL_SN_LEN; 9461 /* 9462 * If we don't have a LUN, we just leave the serial number as 9463 * all spaces. 9464 */ 9465 if (lun != NULL) { 9466 strncpy((char *)sn_ptr->serial_num, 9467 (char *)lun->be_lun->serial_num, CTL_SN_LEN); 9468 } else 9469 memset(sn_ptr->serial_num, 0x20, CTL_SN_LEN); 9470 9471 ctl_set_success(ctsio); 9472 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9473 ctsio->be_move_done = ctl_config_move_done; 9474 ctl_datamove((union ctl_io *)ctsio); 9475 return (CTL_RETVAL_COMPLETE); 9476} 9477 9478 9479/* 9480 * SCSI VPD page 0x86, the Extended INQUIRY Data page. 9481 */ 9482static int 9483ctl_inquiry_evpd_eid(struct ctl_scsiio *ctsio, int alloc_len) 9484{ 9485 struct scsi_vpd_extended_inquiry_data *eid_ptr; 9486 struct ctl_lun *lun; 9487 int data_len; 9488 9489 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9490 9491 data_len = sizeof(struct scsi_vpd_extended_inquiry_data); 9492 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9493 eid_ptr = (struct scsi_vpd_extended_inquiry_data *)ctsio->kern_data_ptr; 9494 ctsio->kern_sg_entries = 0; 9495 9496 if (data_len < alloc_len) { 9497 ctsio->residual = alloc_len - data_len; 9498 ctsio->kern_data_len = data_len; 9499 ctsio->kern_total_len = data_len; 9500 } else { 9501 ctsio->residual = 0; 9502 ctsio->kern_data_len = alloc_len; 9503 ctsio->kern_total_len = alloc_len; 9504 } 9505 ctsio->kern_data_resid = 0; 9506 ctsio->kern_rel_offset = 0; 9507 ctsio->kern_sg_entries = 0; 9508 9509 /* 9510 * The control device is always connected. The disk device, on the 9511 * other hand, may not be online all the time. 9512 */ 9513 if (lun != NULL) 9514 eid_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9515 lun->be_lun->lun_type; 9516 else 9517 eid_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9518 eid_ptr->page_code = SVPD_EXTENDED_INQUIRY_DATA; 9519 scsi_ulto2b(data_len - 4, eid_ptr->page_length); 9520 /* 9521 * We support head of queue, ordered and simple tags. 9522 */ 9523 eid_ptr->flags2 = SVPD_EID_HEADSUP | SVPD_EID_ORDSUP | SVPD_EID_SIMPSUP; 9524 /* 9525 * Volatile cache supported. 9526 */ 9527 eid_ptr->flags3 = SVPD_EID_V_SUP; 9528 9529 /* 9530 * This means that we clear the REPORTED LUNS DATA HAS CHANGED unit 9531 * attention for a particular IT nexus on all LUNs once we report 9532 * it to that nexus once. This bit is required as of SPC-4. 9533 */ 9534 eid_ptr->flags4 = SVPD_EID_LUICLR; 9535 9536 /* 9537 * XXX KDM in order to correctly answer this, we would need 9538 * information from the SIM to determine how much sense data it 9539 * can send. So this would really be a path inquiry field, most 9540 * likely. This can be set to a maximum of 252 according to SPC-4, 9541 * but the hardware may or may not be able to support that much. 9542 * 0 just means that the maximum sense data length is not reported. 9543 */ 9544 eid_ptr->max_sense_length = 0; 9545 9546 ctl_set_success(ctsio); 9547 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9548 ctsio->be_move_done = ctl_config_move_done; 9549 ctl_datamove((union ctl_io *)ctsio); 9550 return (CTL_RETVAL_COMPLETE); 9551} 9552 9553static int 9554ctl_inquiry_evpd_mpp(struct ctl_scsiio *ctsio, int alloc_len) 9555{ 9556 struct scsi_vpd_mode_page_policy *mpp_ptr; 9557 struct ctl_lun *lun; 9558 int data_len; 9559 9560 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9561 9562 data_len = sizeof(struct scsi_vpd_mode_page_policy) + 9563 sizeof(struct scsi_vpd_mode_page_policy_descr); 9564 9565 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9566 mpp_ptr = (struct scsi_vpd_mode_page_policy *)ctsio->kern_data_ptr; 9567 ctsio->kern_sg_entries = 0; 9568 9569 if (data_len < alloc_len) { 9570 ctsio->residual = alloc_len - data_len; 9571 ctsio->kern_data_len = data_len; 9572 ctsio->kern_total_len = data_len; 9573 } else { 9574 ctsio->residual = 0; 9575 ctsio->kern_data_len = alloc_len; 9576 ctsio->kern_total_len = alloc_len; 9577 } 9578 ctsio->kern_data_resid = 0; 9579 ctsio->kern_rel_offset = 0; 9580 ctsio->kern_sg_entries = 0; 9581 9582 /* 9583 * The control device is always connected. The disk device, on the 9584 * other hand, may not be online all the time. 9585 */ 9586 if (lun != NULL) 9587 mpp_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9588 lun->be_lun->lun_type; 9589 else 9590 mpp_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9591 mpp_ptr->page_code = SVPD_MODE_PAGE_POLICY; 9592 scsi_ulto2b(data_len - 4, mpp_ptr->page_length); 9593 mpp_ptr->descr[0].page_code = 0x3f; 9594 mpp_ptr->descr[0].subpage_code = 0xff; 9595 mpp_ptr->descr[0].policy = SVPD_MPP_SHARED; 9596 9597 ctl_set_success(ctsio); 9598 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9599 ctsio->be_move_done = ctl_config_move_done; 9600 ctl_datamove((union ctl_io *)ctsio); 9601 return (CTL_RETVAL_COMPLETE); 9602} 9603 9604/* 9605 * SCSI VPD page 0x83, the Device Identification page. 9606 */ 9607static int 9608ctl_inquiry_evpd_devid(struct ctl_scsiio *ctsio, int alloc_len) 9609{ 9610 struct scsi_vpd_device_id *devid_ptr; 9611 struct scsi_vpd_id_descriptor *desc; 9612 struct ctl_softc *softc; 9613 struct ctl_lun *lun; 9614 struct ctl_port *port; 9615 int data_len, g; 9616 uint8_t proto; 9617 9618 softc = control_softc; 9619 9620 port = ctl_io_port(&ctsio->io_hdr); 9621 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9622 9623 data_len = sizeof(struct scsi_vpd_device_id) + 9624 sizeof(struct scsi_vpd_id_descriptor) + 9625 sizeof(struct scsi_vpd_id_rel_trgt_port_id) + 9626 sizeof(struct scsi_vpd_id_descriptor) + 9627 sizeof(struct scsi_vpd_id_trgt_port_grp_id); 9628 if (lun && lun->lun_devid) 9629 data_len += lun->lun_devid->len; 9630 if (port && port->port_devid) 9631 data_len += port->port_devid->len; 9632 if (port && port->target_devid) 9633 data_len += port->target_devid->len; 9634 9635 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9636 devid_ptr = (struct scsi_vpd_device_id *)ctsio->kern_data_ptr; 9637 ctsio->kern_sg_entries = 0; 9638 9639 if (data_len < alloc_len) { 9640 ctsio->residual = alloc_len - data_len; 9641 ctsio->kern_data_len = data_len; 9642 ctsio->kern_total_len = data_len; 9643 } else { 9644 ctsio->residual = 0; 9645 ctsio->kern_data_len = alloc_len; 9646 ctsio->kern_total_len = alloc_len; 9647 } 9648 ctsio->kern_data_resid = 0; 9649 ctsio->kern_rel_offset = 0; 9650 ctsio->kern_sg_entries = 0; 9651 9652 /* 9653 * The control device is always connected. The disk device, on the 9654 * other hand, may not be online all the time. 9655 */ 9656 if (lun != NULL) 9657 devid_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9658 lun->be_lun->lun_type; 9659 else 9660 devid_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9661 devid_ptr->page_code = SVPD_DEVICE_ID; 9662 scsi_ulto2b(data_len - 4, devid_ptr->length); 9663 9664 if (port && port->port_type == CTL_PORT_FC) 9665 proto = SCSI_PROTO_FC << 4; 9666 else if (port && port->port_type == CTL_PORT_ISCSI) 9667 proto = SCSI_PROTO_ISCSI << 4; 9668 else 9669 proto = SCSI_PROTO_SPI << 4; 9670 desc = (struct scsi_vpd_id_descriptor *)devid_ptr->desc_list; 9671 9672 /* 9673 * We're using a LUN association here. i.e., this device ID is a 9674 * per-LUN identifier. 9675 */ 9676 if (lun && lun->lun_devid) { 9677 memcpy(desc, lun->lun_devid->data, lun->lun_devid->len); 9678 desc = (struct scsi_vpd_id_descriptor *)((uint8_t *)desc + 9679 lun->lun_devid->len); 9680 } 9681 9682 /* 9683 * This is for the WWPN which is a port association. 9684 */ 9685 if (port && port->port_devid) { 9686 memcpy(desc, port->port_devid->data, port->port_devid->len); 9687 desc = (struct scsi_vpd_id_descriptor *)((uint8_t *)desc + 9688 port->port_devid->len); 9689 } 9690 9691 /* 9692 * This is for the Relative Target Port(type 4h) identifier 9693 */ 9694 desc->proto_codeset = proto | SVPD_ID_CODESET_BINARY; 9695 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_PORT | 9696 SVPD_ID_TYPE_RELTARG; 9697 desc->length = 4; 9698 scsi_ulto2b(ctsio->io_hdr.nexus.targ_port, &desc->identifier[2]); 9699 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 9700 sizeof(struct scsi_vpd_id_rel_trgt_port_id)); 9701 9702 /* 9703 * This is for the Target Port Group(type 5h) identifier 9704 */ 9705 desc->proto_codeset = proto | SVPD_ID_CODESET_BINARY; 9706 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_PORT | 9707 SVPD_ID_TYPE_TPORTGRP; 9708 desc->length = 4; 9709 if (softc->is_single || 9710 (port && port->status & CTL_PORT_STATUS_HA_SHARED)) 9711 g = 1; 9712 else 9713 g = 2 + ctsio->io_hdr.nexus.targ_port / softc->port_cnt; 9714 scsi_ulto2b(g, &desc->identifier[2]); 9715 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 9716 sizeof(struct scsi_vpd_id_trgt_port_grp_id)); 9717 9718 /* 9719 * This is for the Target identifier 9720 */ 9721 if (port && port->target_devid) { 9722 memcpy(desc, port->target_devid->data, port->target_devid->len); 9723 } 9724 9725 ctl_set_success(ctsio); 9726 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9727 ctsio->be_move_done = ctl_config_move_done; 9728 ctl_datamove((union ctl_io *)ctsio); 9729 return (CTL_RETVAL_COMPLETE); 9730} 9731 9732static int 9733ctl_inquiry_evpd_scsi_ports(struct ctl_scsiio *ctsio, int alloc_len) 9734{ 9735 struct ctl_softc *softc = control_softc; 9736 struct scsi_vpd_scsi_ports *sp; 9737 struct scsi_vpd_port_designation *pd; 9738 struct scsi_vpd_port_designation_cont *pdc; 9739 struct ctl_lun *lun; 9740 struct ctl_port *port; 9741 int data_len, num_target_ports, iid_len, id_len; 9742 9743 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9744 9745 num_target_ports = 0; 9746 iid_len = 0; 9747 id_len = 0; 9748 mtx_lock(&softc->ctl_lock); 9749 STAILQ_FOREACH(port, &softc->port_list, links) { 9750 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 9751 continue; 9752 if (lun != NULL && 9753 ctl_lun_map_to_port(port, lun->lun) == UINT32_MAX) 9754 continue; 9755 num_target_ports++; 9756 if (port->init_devid) 9757 iid_len += port->init_devid->len; 9758 if (port->port_devid) 9759 id_len += port->port_devid->len; 9760 } 9761 mtx_unlock(&softc->ctl_lock); 9762 9763 data_len = sizeof(struct scsi_vpd_scsi_ports) + 9764 num_target_ports * (sizeof(struct scsi_vpd_port_designation) + 9765 sizeof(struct scsi_vpd_port_designation_cont)) + iid_len + id_len; 9766 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9767 sp = (struct scsi_vpd_scsi_ports *)ctsio->kern_data_ptr; 9768 ctsio->kern_sg_entries = 0; 9769 9770 if (data_len < alloc_len) { 9771 ctsio->residual = alloc_len - data_len; 9772 ctsio->kern_data_len = data_len; 9773 ctsio->kern_total_len = data_len; 9774 } else { 9775 ctsio->residual = 0; 9776 ctsio->kern_data_len = alloc_len; 9777 ctsio->kern_total_len = alloc_len; 9778 } 9779 ctsio->kern_data_resid = 0; 9780 ctsio->kern_rel_offset = 0; 9781 ctsio->kern_sg_entries = 0; 9782 9783 /* 9784 * The control device is always connected. The disk device, on the 9785 * other hand, may not be online all the time. Need to change this 9786 * to figure out whether the disk device is actually online or not. 9787 */ 9788 if (lun != NULL) 9789 sp->device = (SID_QUAL_LU_CONNECTED << 5) | 9790 lun->be_lun->lun_type; 9791 else 9792 sp->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9793 9794 sp->page_code = SVPD_SCSI_PORTS; 9795 scsi_ulto2b(data_len - sizeof(struct scsi_vpd_scsi_ports), 9796 sp->page_length); 9797 pd = &sp->design[0]; 9798 9799 mtx_lock(&softc->ctl_lock); 9800 STAILQ_FOREACH(port, &softc->port_list, links) { 9801 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 9802 continue; 9803 if (lun != NULL && 9804 ctl_lun_map_to_port(port, lun->lun) == UINT32_MAX) 9805 continue; 9806 scsi_ulto2b(port->targ_port, pd->relative_port_id); 9807 if (port->init_devid) { 9808 iid_len = port->init_devid->len; 9809 memcpy(pd->initiator_transportid, 9810 port->init_devid->data, port->init_devid->len); 9811 } else 9812 iid_len = 0; 9813 scsi_ulto2b(iid_len, pd->initiator_transportid_length); 9814 pdc = (struct scsi_vpd_port_designation_cont *) 9815 (&pd->initiator_transportid[iid_len]); 9816 if (port->port_devid) { 9817 id_len = port->port_devid->len; 9818 memcpy(pdc->target_port_descriptors, 9819 port->port_devid->data, port->port_devid->len); 9820 } else 9821 id_len = 0; 9822 scsi_ulto2b(id_len, pdc->target_port_descriptors_length); 9823 pd = (struct scsi_vpd_port_designation *) 9824 ((uint8_t *)pdc->target_port_descriptors + id_len); 9825 } 9826 mtx_unlock(&softc->ctl_lock); 9827 9828 ctl_set_success(ctsio); 9829 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9830 ctsio->be_move_done = ctl_config_move_done; 9831 ctl_datamove((union ctl_io *)ctsio); 9832 return (CTL_RETVAL_COMPLETE); 9833} 9834 9835static int 9836ctl_inquiry_evpd_block_limits(struct ctl_scsiio *ctsio, int alloc_len) 9837{ 9838 struct scsi_vpd_block_limits *bl_ptr; 9839 struct ctl_lun *lun; 9840 uint64_t ival; 9841 9842 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9843 9844 ctsio->kern_data_ptr = malloc(sizeof(*bl_ptr), M_CTL, M_WAITOK | M_ZERO); 9845 bl_ptr = (struct scsi_vpd_block_limits *)ctsio->kern_data_ptr; 9846 ctsio->kern_sg_entries = 0; 9847 9848 if (sizeof(*bl_ptr) < alloc_len) { 9849 ctsio->residual = alloc_len - sizeof(*bl_ptr); 9850 ctsio->kern_data_len = sizeof(*bl_ptr); 9851 ctsio->kern_total_len = sizeof(*bl_ptr); 9852 } else { 9853 ctsio->residual = 0; 9854 ctsio->kern_data_len = alloc_len; 9855 ctsio->kern_total_len = alloc_len; 9856 } 9857 ctsio->kern_data_resid = 0; 9858 ctsio->kern_rel_offset = 0; 9859 ctsio->kern_sg_entries = 0; 9860 9861 /* 9862 * The control device is always connected. The disk device, on the 9863 * other hand, may not be online all the time. Need to change this 9864 * to figure out whether the disk device is actually online or not. 9865 */ 9866 if (lun != NULL) 9867 bl_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9868 lun->be_lun->lun_type; 9869 else 9870 bl_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9871 9872 bl_ptr->page_code = SVPD_BLOCK_LIMITS; 9873 scsi_ulto2b(sizeof(*bl_ptr) - 4, bl_ptr->page_length); 9874 bl_ptr->max_cmp_write_len = 0xff; 9875 scsi_ulto4b(0xffffffff, bl_ptr->max_txfer_len); 9876 if (lun != NULL) { 9877 scsi_ulto4b(lun->be_lun->opttxferlen, bl_ptr->opt_txfer_len); 9878 if (lun->be_lun->flags & CTL_LUN_FLAG_UNMAP) { 9879 ival = 0xffffffff; 9880 ctl_get_opt_number(&lun->be_lun->options, 9881 "unmap_max_lba", &ival); 9882 scsi_ulto4b(ival, bl_ptr->max_unmap_lba_cnt); 9883 ival = 0xffffffff; 9884 ctl_get_opt_number(&lun->be_lun->options, 9885 "unmap_max_descr", &ival); 9886 scsi_ulto4b(ival, bl_ptr->max_unmap_blk_cnt); 9887 if (lun->be_lun->ublockexp != 0) { 9888 scsi_ulto4b((1 << lun->be_lun->ublockexp), 9889 bl_ptr->opt_unmap_grain); 9890 scsi_ulto4b(0x80000000 | lun->be_lun->ublockoff, 9891 bl_ptr->unmap_grain_align); 9892 } 9893 } 9894 scsi_ulto4b(lun->be_lun->atomicblock, 9895 bl_ptr->max_atomic_transfer_length); 9896 scsi_ulto4b(0, bl_ptr->atomic_alignment); 9897 scsi_ulto4b(0, bl_ptr->atomic_transfer_length_granularity); 9898 scsi_ulto4b(0, bl_ptr->max_atomic_transfer_length_with_atomic_boundary); 9899 scsi_ulto4b(0, bl_ptr->max_atomic_boundary_size); 9900 ival = UINT64_MAX; 9901 ctl_get_opt_number(&lun->be_lun->options, "write_same_max_lba", &ival); 9902 scsi_u64to8b(ival, bl_ptr->max_write_same_length); 9903 } 9904 9905 ctl_set_success(ctsio); 9906 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9907 ctsio->be_move_done = ctl_config_move_done; 9908 ctl_datamove((union ctl_io *)ctsio); 9909 return (CTL_RETVAL_COMPLETE); 9910} 9911 9912static int 9913ctl_inquiry_evpd_bdc(struct ctl_scsiio *ctsio, int alloc_len) 9914{ 9915 struct scsi_vpd_block_device_characteristics *bdc_ptr; 9916 struct ctl_lun *lun; 9917 const char *value; 9918 u_int i; 9919 9920 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9921 9922 ctsio->kern_data_ptr = malloc(sizeof(*bdc_ptr), M_CTL, M_WAITOK | M_ZERO); 9923 bdc_ptr = (struct scsi_vpd_block_device_characteristics *)ctsio->kern_data_ptr; 9924 ctsio->kern_sg_entries = 0; 9925 9926 if (sizeof(*bdc_ptr) < alloc_len) { 9927 ctsio->residual = alloc_len - sizeof(*bdc_ptr); 9928 ctsio->kern_data_len = sizeof(*bdc_ptr); 9929 ctsio->kern_total_len = sizeof(*bdc_ptr); 9930 } else { 9931 ctsio->residual = 0; 9932 ctsio->kern_data_len = alloc_len; 9933 ctsio->kern_total_len = alloc_len; 9934 } 9935 ctsio->kern_data_resid = 0; 9936 ctsio->kern_rel_offset = 0; 9937 ctsio->kern_sg_entries = 0; 9938 9939 /* 9940 * The control device is always connected. The disk device, on the 9941 * other hand, may not be online all the time. Need to change this 9942 * to figure out whether the disk device is actually online or not. 9943 */ 9944 if (lun != NULL) 9945 bdc_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9946 lun->be_lun->lun_type; 9947 else 9948 bdc_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9949 bdc_ptr->page_code = SVPD_BDC; 9950 scsi_ulto2b(sizeof(*bdc_ptr) - 4, bdc_ptr->page_length); 9951 if (lun != NULL && 9952 (value = ctl_get_opt(&lun->be_lun->options, "rpm")) != NULL) 9953 i = strtol(value, NULL, 0); 9954 else 9955 i = CTL_DEFAULT_ROTATION_RATE; 9956 scsi_ulto2b(i, bdc_ptr->medium_rotation_rate); 9957 if (lun != NULL && 9958 (value = ctl_get_opt(&lun->be_lun->options, "formfactor")) != NULL) 9959 i = strtol(value, NULL, 0); 9960 else 9961 i = 0; 9962 bdc_ptr->wab_wac_ff = (i & 0x0f); 9963 bdc_ptr->flags = SVPD_FUAB | SVPD_VBULS; 9964 9965 ctl_set_success(ctsio); 9966 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9967 ctsio->be_move_done = ctl_config_move_done; 9968 ctl_datamove((union ctl_io *)ctsio); 9969 return (CTL_RETVAL_COMPLETE); 9970} 9971 9972static int 9973ctl_inquiry_evpd_lbp(struct ctl_scsiio *ctsio, int alloc_len) 9974{ 9975 struct scsi_vpd_logical_block_prov *lbp_ptr; 9976 struct ctl_lun *lun; 9977 const char *value; 9978 9979 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9980 9981 ctsio->kern_data_ptr = malloc(sizeof(*lbp_ptr), M_CTL, M_WAITOK | M_ZERO); 9982 lbp_ptr = (struct scsi_vpd_logical_block_prov *)ctsio->kern_data_ptr; 9983 ctsio->kern_sg_entries = 0; 9984 9985 if (sizeof(*lbp_ptr) < alloc_len) { 9986 ctsio->residual = alloc_len - sizeof(*lbp_ptr); 9987 ctsio->kern_data_len = sizeof(*lbp_ptr); 9988 ctsio->kern_total_len = sizeof(*lbp_ptr); 9989 } else { 9990 ctsio->residual = 0; 9991 ctsio->kern_data_len = alloc_len; 9992 ctsio->kern_total_len = alloc_len; 9993 } 9994 ctsio->kern_data_resid = 0; 9995 ctsio->kern_rel_offset = 0; 9996 ctsio->kern_sg_entries = 0; 9997 9998 /* 9999 * The control device is always connected. The disk device, on the 10000 * other hand, may not be online all the time. Need to change this 10001 * to figure out whether the disk device is actually online or not. 10002 */ 10003 if (lun != NULL) 10004 lbp_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10005 lun->be_lun->lun_type; 10006 else 10007 lbp_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10008 10009 lbp_ptr->page_code = SVPD_LBP; 10010 scsi_ulto2b(sizeof(*lbp_ptr) - 4, lbp_ptr->page_length); 10011 lbp_ptr->threshold_exponent = CTL_LBP_EXPONENT; 10012 if (lun != NULL && lun->be_lun->flags & CTL_LUN_FLAG_UNMAP) { 10013 lbp_ptr->flags = SVPD_LBP_UNMAP | SVPD_LBP_WS16 | 10014 SVPD_LBP_WS10 | SVPD_LBP_RZ | SVPD_LBP_ANC_SUP; 10015 value = ctl_get_opt(&lun->be_lun->options, "provisioning_type"); 10016 if (value != NULL) { 10017 if (strcmp(value, "resource") == 0) 10018 lbp_ptr->prov_type = SVPD_LBP_RESOURCE; 10019 else if (strcmp(value, "thin") == 0) 10020 lbp_ptr->prov_type = SVPD_LBP_THIN; 10021 } else 10022 lbp_ptr->prov_type = SVPD_LBP_THIN; 10023 } 10024 10025 ctl_set_success(ctsio); 10026 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10027 ctsio->be_move_done = ctl_config_move_done; 10028 ctl_datamove((union ctl_io *)ctsio); 10029 return (CTL_RETVAL_COMPLETE); 10030} 10031 10032/* 10033 * INQUIRY with the EVPD bit set. 10034 */ 10035static int 10036ctl_inquiry_evpd(struct ctl_scsiio *ctsio) 10037{ 10038 struct ctl_lun *lun; 10039 struct scsi_inquiry *cdb; 10040 int alloc_len, retval; 10041 10042 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10043 cdb = (struct scsi_inquiry *)ctsio->cdb; 10044 alloc_len = scsi_2btoul(cdb->length); 10045 10046 switch (cdb->page_code) { 10047 case SVPD_SUPPORTED_PAGES: 10048 retval = ctl_inquiry_evpd_supported(ctsio, alloc_len); 10049 break; 10050 case SVPD_UNIT_SERIAL_NUMBER: 10051 retval = ctl_inquiry_evpd_serial(ctsio, alloc_len); 10052 break; 10053 case SVPD_DEVICE_ID: 10054 retval = ctl_inquiry_evpd_devid(ctsio, alloc_len); 10055 break; 10056 case SVPD_EXTENDED_INQUIRY_DATA: 10057 retval = ctl_inquiry_evpd_eid(ctsio, alloc_len); 10058 break; 10059 case SVPD_MODE_PAGE_POLICY: 10060 retval = ctl_inquiry_evpd_mpp(ctsio, alloc_len); 10061 break; 10062 case SVPD_SCSI_PORTS: 10063 retval = ctl_inquiry_evpd_scsi_ports(ctsio, alloc_len); 10064 break; 10065 case SVPD_SCSI_TPC: 10066 retval = ctl_inquiry_evpd_tpc(ctsio, alloc_len); 10067 break; 10068 case SVPD_BLOCK_LIMITS: 10069 if (lun == NULL || lun->be_lun->lun_type != T_DIRECT) 10070 goto err; 10071 retval = ctl_inquiry_evpd_block_limits(ctsio, alloc_len); 10072 break; 10073 case SVPD_BDC: 10074 if (lun == NULL || lun->be_lun->lun_type != T_DIRECT) 10075 goto err; 10076 retval = ctl_inquiry_evpd_bdc(ctsio, alloc_len); 10077 break; 10078 case SVPD_LBP: 10079 if (lun == NULL || lun->be_lun->lun_type != T_DIRECT) 10080 goto err; 10081 retval = ctl_inquiry_evpd_lbp(ctsio, alloc_len); 10082 break; 10083 default: 10084err: 10085 ctl_set_invalid_field(ctsio, 10086 /*sks_valid*/ 1, 10087 /*command*/ 1, 10088 /*field*/ 2, 10089 /*bit_valid*/ 0, 10090 /*bit*/ 0); 10091 ctl_done((union ctl_io *)ctsio); 10092 retval = CTL_RETVAL_COMPLETE; 10093 break; 10094 } 10095 10096 return (retval); 10097} 10098 10099/* 10100 * Standard INQUIRY data. 10101 */ 10102static int 10103ctl_inquiry_std(struct ctl_scsiio *ctsio) 10104{ 10105 struct scsi_inquiry_data *inq_ptr; 10106 struct scsi_inquiry *cdb; 10107 struct ctl_softc *softc = control_softc; 10108 struct ctl_port *port; 10109 struct ctl_lun *lun; 10110 char *val; 10111 uint32_t alloc_len, data_len; 10112 ctl_port_type port_type; 10113 10114 port = ctl_io_port(&ctsio->io_hdr); 10115 port_type = port->port_type; 10116 if (port_type == CTL_PORT_IOCTL || port_type == CTL_PORT_INTERNAL) 10117 port_type = CTL_PORT_SCSI; 10118 10119 lun = ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10120 cdb = (struct scsi_inquiry *)ctsio->cdb; 10121 alloc_len = scsi_2btoul(cdb->length); 10122 10123 /* 10124 * We malloc the full inquiry data size here and fill it 10125 * in. If the user only asks for less, we'll give him 10126 * that much. 10127 */ 10128 data_len = offsetof(struct scsi_inquiry_data, vendor_specific1); 10129 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 10130 inq_ptr = (struct scsi_inquiry_data *)ctsio->kern_data_ptr; 10131 ctsio->kern_sg_entries = 0; 10132 ctsio->kern_data_resid = 0; 10133 ctsio->kern_rel_offset = 0; 10134 10135 if (data_len < alloc_len) { 10136 ctsio->residual = alloc_len - data_len; 10137 ctsio->kern_data_len = data_len; 10138 ctsio->kern_total_len = data_len; 10139 } else { 10140 ctsio->residual = 0; 10141 ctsio->kern_data_len = alloc_len; 10142 ctsio->kern_total_len = alloc_len; 10143 } 10144 10145 if (lun != NULL) { 10146 if ((lun->flags & CTL_LUN_PRIMARY_SC) || 10147 softc->ha_link >= CTL_HA_LINK_UNKNOWN) { 10148 inq_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10149 lun->be_lun->lun_type; 10150 } else { 10151 inq_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | 10152 lun->be_lun->lun_type; 10153 } 10154 if (lun->flags & CTL_LUN_REMOVABLE) 10155 inq_ptr->dev_qual2 |= SID_RMB; 10156 } else 10157 inq_ptr->device = (SID_QUAL_BAD_LU << 5) | T_NODEVICE; 10158 10159 /* RMB in byte 2 is 0 */ 10160 inq_ptr->version = SCSI_REV_SPC5; 10161 10162 /* 10163 * According to SAM-3, even if a device only supports a single 10164 * level of LUN addressing, it should still set the HISUP bit: 10165 * 10166 * 4.9.1 Logical unit numbers overview 10167 * 10168 * All logical unit number formats described in this standard are 10169 * hierarchical in structure even when only a single level in that 10170 * hierarchy is used. The HISUP bit shall be set to one in the 10171 * standard INQUIRY data (see SPC-2) when any logical unit number 10172 * format described in this standard is used. Non-hierarchical 10173 * formats are outside the scope of this standard. 10174 * 10175 * Therefore we set the HiSup bit here. 10176 * 10177 * The response format is 2, per SPC-3. 10178 */ 10179 inq_ptr->response_format = SID_HiSup | 2; 10180 10181 inq_ptr->additional_length = data_len - 10182 (offsetof(struct scsi_inquiry_data, additional_length) + 1); 10183 CTL_DEBUG_PRINT(("additional_length = %d\n", 10184 inq_ptr->additional_length)); 10185 10186 inq_ptr->spc3_flags = SPC3_SID_3PC | SPC3_SID_TPGS_IMPLICIT; 10187 if (port_type == CTL_PORT_SCSI) 10188 inq_ptr->spc2_flags = SPC2_SID_ADDR16; 10189 inq_ptr->spc2_flags |= SPC2_SID_MultiP; 10190 inq_ptr->flags = SID_CmdQue; 10191 if (port_type == CTL_PORT_SCSI) 10192 inq_ptr->flags |= SID_WBus16 | SID_Sync; 10193 10194 /* 10195 * Per SPC-3, unused bytes in ASCII strings are filled with spaces. 10196 * We have 8 bytes for the vendor name, and 16 bytes for the device 10197 * name and 4 bytes for the revision. 10198 */ 10199 if (lun == NULL || (val = ctl_get_opt(&lun->be_lun->options, 10200 "vendor")) == NULL) { 10201 strncpy(inq_ptr->vendor, CTL_VENDOR, sizeof(inq_ptr->vendor)); 10202 } else { 10203 memset(inq_ptr->vendor, ' ', sizeof(inq_ptr->vendor)); 10204 strncpy(inq_ptr->vendor, val, 10205 min(sizeof(inq_ptr->vendor), strlen(val))); 10206 } 10207 if (lun == NULL) { 10208 strncpy(inq_ptr->product, CTL_DIRECT_PRODUCT, 10209 sizeof(inq_ptr->product)); 10210 } else if ((val = ctl_get_opt(&lun->be_lun->options, "product")) == NULL) { 10211 switch (lun->be_lun->lun_type) { 10212 case T_DIRECT: 10213 strncpy(inq_ptr->product, CTL_DIRECT_PRODUCT, 10214 sizeof(inq_ptr->product)); 10215 break; 10216 case T_PROCESSOR: 10217 strncpy(inq_ptr->product, CTL_PROCESSOR_PRODUCT, 10218 sizeof(inq_ptr->product)); 10219 break; 10220 case T_CDROM: 10221 strncpy(inq_ptr->product, CTL_CDROM_PRODUCT, 10222 sizeof(inq_ptr->product)); 10223 break; 10224 default: 10225 strncpy(inq_ptr->product, CTL_UNKNOWN_PRODUCT, 10226 sizeof(inq_ptr->product)); 10227 break; 10228 } 10229 } else { 10230 memset(inq_ptr->product, ' ', sizeof(inq_ptr->product)); 10231 strncpy(inq_ptr->product, val, 10232 min(sizeof(inq_ptr->product), strlen(val))); 10233 } 10234 10235 /* 10236 * XXX make this a macro somewhere so it automatically gets 10237 * incremented when we make changes. 10238 */ 10239 if (lun == NULL || (val = ctl_get_opt(&lun->be_lun->options, 10240 "revision")) == NULL) { 10241 strncpy(inq_ptr->revision, "0001", sizeof(inq_ptr->revision)); 10242 } else { 10243 memset(inq_ptr->revision, ' ', sizeof(inq_ptr->revision)); 10244 strncpy(inq_ptr->revision, val, 10245 min(sizeof(inq_ptr->revision), strlen(val))); 10246 } 10247 10248 /* 10249 * For parallel SCSI, we support double transition and single 10250 * transition clocking. We also support QAS (Quick Arbitration 10251 * and Selection) and Information Unit transfers on both the 10252 * control and array devices. 10253 */ 10254 if (port_type == CTL_PORT_SCSI) 10255 inq_ptr->spi3data = SID_SPI_CLOCK_DT_ST | SID_SPI_QAS | 10256 SID_SPI_IUS; 10257 10258 /* SAM-6 (no version claimed) */ 10259 scsi_ulto2b(0x00C0, inq_ptr->version1); 10260 /* SPC-5 (no version claimed) */ 10261 scsi_ulto2b(0x05C0, inq_ptr->version2); 10262 if (port_type == CTL_PORT_FC) { 10263 /* FCP-2 ANSI INCITS.350:2003 */ 10264 scsi_ulto2b(0x0917, inq_ptr->version3); 10265 } else if (port_type == CTL_PORT_SCSI) { 10266 /* SPI-4 ANSI INCITS.362:200x */ 10267 scsi_ulto2b(0x0B56, inq_ptr->version3); 10268 } else if (port_type == CTL_PORT_ISCSI) { 10269 /* iSCSI (no version claimed) */ 10270 scsi_ulto2b(0x0960, inq_ptr->version3); 10271 } else if (port_type == CTL_PORT_SAS) { 10272 /* SAS (no version claimed) */ 10273 scsi_ulto2b(0x0BE0, inq_ptr->version3); 10274 } 10275 10276 if (lun == NULL) { 10277 /* SBC-4 (no version claimed) */ 10278 scsi_ulto2b(0x0600, inq_ptr->version4); 10279 } else { 10280 switch (lun->be_lun->lun_type) { 10281 case T_DIRECT: 10282 /* SBC-4 (no version claimed) */ 10283 scsi_ulto2b(0x0600, inq_ptr->version4); 10284 break; 10285 case T_PROCESSOR: 10286 break; 10287 case T_CDROM: 10288 /* MMC-6 (no version claimed) */ 10289 scsi_ulto2b(0x04E0, inq_ptr->version4); 10290 break; 10291 default: 10292 break; 10293 } 10294 } 10295 10296 ctl_set_success(ctsio); 10297 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10298 ctsio->be_move_done = ctl_config_move_done; 10299 ctl_datamove((union ctl_io *)ctsio); 10300 return (CTL_RETVAL_COMPLETE); 10301} 10302 10303int 10304ctl_inquiry(struct ctl_scsiio *ctsio) 10305{ 10306 struct scsi_inquiry *cdb; 10307 int retval; 10308 10309 CTL_DEBUG_PRINT(("ctl_inquiry\n")); 10310 10311 cdb = (struct scsi_inquiry *)ctsio->cdb; 10312 if (cdb->byte2 & SI_EVPD) 10313 retval = ctl_inquiry_evpd(ctsio); 10314 else if (cdb->page_code == 0) 10315 retval = ctl_inquiry_std(ctsio); 10316 else { 10317 ctl_set_invalid_field(ctsio, 10318 /*sks_valid*/ 1, 10319 /*command*/ 1, 10320 /*field*/ 2, 10321 /*bit_valid*/ 0, 10322 /*bit*/ 0); 10323 ctl_done((union ctl_io *)ctsio); 10324 return (CTL_RETVAL_COMPLETE); 10325 } 10326 10327 return (retval); 10328} 10329 10330int 10331ctl_get_config(struct ctl_scsiio *ctsio) 10332{ 10333 struct scsi_get_config_header *hdr; 10334 struct scsi_get_config_feature *feature; 10335 struct scsi_get_config *cdb; 10336 struct ctl_lun *lun; 10337 uint32_t alloc_len, data_len; 10338 int rt, starting; 10339 10340 lun = ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10341 cdb = (struct scsi_get_config *)ctsio->cdb; 10342 rt = (cdb->rt & SGC_RT_MASK); 10343 starting = scsi_2btoul(cdb->starting_feature); 10344 alloc_len = scsi_2btoul(cdb->length); 10345 10346 data_len = sizeof(struct scsi_get_config_header) + 10347 sizeof(struct scsi_get_config_feature) + 8 + 10348 sizeof(struct scsi_get_config_feature) + 8 + 10349 sizeof(struct scsi_get_config_feature) + 4 + 10350 sizeof(struct scsi_get_config_feature) + 4 + 10351 sizeof(struct scsi_get_config_feature) + 8 + 10352 sizeof(struct scsi_get_config_feature) + 10353 sizeof(struct scsi_get_config_feature) + 4 + 10354 sizeof(struct scsi_get_config_feature) + 4 + 10355 sizeof(struct scsi_get_config_feature) + 4 + 10356 sizeof(struct scsi_get_config_feature) + 4 + 10357 sizeof(struct scsi_get_config_feature) + 4 + 10358 sizeof(struct scsi_get_config_feature) + 4; 10359 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 10360 ctsio->kern_sg_entries = 0; 10361 ctsio->kern_data_resid = 0; 10362 ctsio->kern_rel_offset = 0; 10363 10364 hdr = (struct scsi_get_config_header *)ctsio->kern_data_ptr; 10365 if (lun->flags & CTL_LUN_NO_MEDIA) 10366 scsi_ulto2b(0x0000, hdr->current_profile); 10367 else 10368 scsi_ulto2b(0x0010, hdr->current_profile); 10369 feature = (struct scsi_get_config_feature *)(hdr + 1); 10370 10371 if (starting > 0x003b) 10372 goto done; 10373 if (starting > 0x003a) 10374 goto f3b; 10375 if (starting > 0x002b) 10376 goto f3a; 10377 if (starting > 0x002a) 10378 goto f2b; 10379 if (starting > 0x001f) 10380 goto f2a; 10381 if (starting > 0x001e) 10382 goto f1f; 10383 if (starting > 0x001d) 10384 goto f1e; 10385 if (starting > 0x0010) 10386 goto f1d; 10387 if (starting > 0x0003) 10388 goto f10; 10389 if (starting > 0x0002) 10390 goto f3; 10391 if (starting > 0x0001) 10392 goto f2; 10393 if (starting > 0x0000) 10394 goto f1; 10395 10396 /* Profile List */ 10397 scsi_ulto2b(0x0000, feature->feature_code); 10398 feature->flags = SGC_F_PERSISTENT | SGC_F_CURRENT; 10399 feature->add_length = 8; 10400 scsi_ulto2b(0x0008, &feature->feature_data[0]); /* CD-ROM */ 10401 feature->feature_data[2] = 0x00; 10402 scsi_ulto2b(0x0010, &feature->feature_data[4]); /* DVD-ROM */ 10403 feature->feature_data[6] = 0x01; 10404 feature = (struct scsi_get_config_feature *) 10405 &feature->feature_data[feature->add_length]; 10406 10407f1: /* Core */ 10408 scsi_ulto2b(0x0001, feature->feature_code); 10409 feature->flags = 0x08 | SGC_F_PERSISTENT | SGC_F_CURRENT; 10410 feature->add_length = 8; 10411 scsi_ulto4b(0x00000000, &feature->feature_data[0]); 10412 feature->feature_data[4] = 0x03; 10413 feature = (struct scsi_get_config_feature *) 10414 &feature->feature_data[feature->add_length]; 10415 10416f2: /* Morphing */ 10417 scsi_ulto2b(0x0002, feature->feature_code); 10418 feature->flags = 0x04 | SGC_F_PERSISTENT | SGC_F_CURRENT; 10419 feature->add_length = 4; 10420 feature->feature_data[0] = 0x02; 10421 feature = (struct scsi_get_config_feature *) 10422 &feature->feature_data[feature->add_length]; 10423 10424f3: /* Removable Medium */ 10425 scsi_ulto2b(0x0003, feature->feature_code); 10426 feature->flags = 0x04 | SGC_F_PERSISTENT | SGC_F_CURRENT; 10427 feature->add_length = 4; 10428 feature->feature_data[0] = 0x39; 10429 feature = (struct scsi_get_config_feature *) 10430 &feature->feature_data[feature->add_length]; 10431 10432 if (rt == SGC_RT_CURRENT && (lun->flags & CTL_LUN_NO_MEDIA)) 10433 goto done; 10434 10435f10: /* Random Read */ 10436 scsi_ulto2b(0x0010, feature->feature_code); 10437 feature->flags = 0x00; 10438 if ((lun->flags & CTL_LUN_NO_MEDIA) == 0) 10439 feature->flags |= SGC_F_CURRENT; 10440 feature->add_length = 8; 10441 scsi_ulto4b(lun->be_lun->blocksize, &feature->feature_data[0]); 10442 scsi_ulto2b(1, &feature->feature_data[4]); 10443 feature->feature_data[6] = 0x00; 10444 feature = (struct scsi_get_config_feature *) 10445 &feature->feature_data[feature->add_length]; 10446 10447f1d: /* Multi-Read */ 10448 scsi_ulto2b(0x001D, feature->feature_code); 10449 feature->flags = 0x00; 10450 if ((lun->flags & CTL_LUN_NO_MEDIA) == 0) 10451 feature->flags |= SGC_F_CURRENT; 10452 feature->add_length = 0; 10453 feature = (struct scsi_get_config_feature *) 10454 &feature->feature_data[feature->add_length]; 10455 10456f1e: /* CD Read */ 10457 scsi_ulto2b(0x001E, feature->feature_code); 10458 feature->flags = 0x00; 10459 if ((lun->flags & CTL_LUN_NO_MEDIA) == 0) 10460 feature->flags |= SGC_F_CURRENT; 10461 feature->add_length = 4; 10462 feature->feature_data[0] = 0x00; 10463 feature = (struct scsi_get_config_feature *) 10464 &feature->feature_data[feature->add_length]; 10465 10466f1f: /* DVD Read */ 10467 scsi_ulto2b(0x001F, feature->feature_code); 10468 feature->flags = 0x08; 10469 if ((lun->flags & CTL_LUN_NO_MEDIA) == 0) 10470 feature->flags |= SGC_F_CURRENT; 10471 feature->add_length = 4; 10472 feature->feature_data[0] = 0x01; 10473 feature->feature_data[2] = 0x03; 10474 feature = (struct scsi_get_config_feature *) 10475 &feature->feature_data[feature->add_length]; 10476 10477f2a: /* DVD+RW */ 10478 scsi_ulto2b(0x002A, feature->feature_code); 10479 feature->flags = 0x04; 10480 if ((lun->flags & CTL_LUN_NO_MEDIA) == 0) 10481 feature->flags |= SGC_F_CURRENT; 10482 feature->add_length = 4; 10483 feature->feature_data[0] = 0x00; 10484 feature->feature_data[1] = 0x00; 10485 feature = (struct scsi_get_config_feature *) 10486 &feature->feature_data[feature->add_length]; 10487 10488f2b: /* DVD+R */ 10489 scsi_ulto2b(0x002B, feature->feature_code); 10490 feature->flags = 0x00; 10491 if ((lun->flags & CTL_LUN_NO_MEDIA) == 0) 10492 feature->flags |= SGC_F_CURRENT; 10493 feature->add_length = 4; 10494 feature->feature_data[0] = 0x00; 10495 feature = (struct scsi_get_config_feature *) 10496 &feature->feature_data[feature->add_length]; 10497 10498f3a: /* DVD+RW Dual Layer */ 10499 scsi_ulto2b(0x003A, feature->feature_code); 10500 feature->flags = 0x00; 10501 if ((lun->flags & CTL_LUN_NO_MEDIA) == 0) 10502 feature->flags |= SGC_F_CURRENT; 10503 feature->add_length = 4; 10504 feature->feature_data[0] = 0x00; 10505 feature->feature_data[1] = 0x00; 10506 feature = (struct scsi_get_config_feature *) 10507 &feature->feature_data[feature->add_length]; 10508 10509f3b: /* DVD+R Dual Layer */ 10510 scsi_ulto2b(0x003B, feature->feature_code); 10511 feature->flags = 0x00; 10512 if ((lun->flags & CTL_LUN_NO_MEDIA) == 0) 10513 feature->flags |= SGC_F_CURRENT; 10514 feature->add_length = 4; 10515 feature->feature_data[0] = 0x00; 10516 feature = (struct scsi_get_config_feature *) 10517 &feature->feature_data[feature->add_length]; 10518 10519done: 10520 data_len = (uint8_t *)feature - (uint8_t *)hdr; 10521 if (rt == SGC_RT_SPECIFIC && data_len > 4) { 10522 feature = (struct scsi_get_config_feature *)(hdr + 1); 10523 if (scsi_2btoul(feature->feature_code) == starting) 10524 feature = (struct scsi_get_config_feature *) 10525 &feature->feature_data[feature->add_length]; 10526 data_len = (uint8_t *)feature - (uint8_t *)hdr; 10527 } 10528 scsi_ulto4b(data_len - 4, hdr->data_length); 10529 if (data_len < alloc_len) { 10530 ctsio->residual = alloc_len - data_len; 10531 ctsio->kern_data_len = data_len; 10532 ctsio->kern_total_len = data_len; 10533 } else { 10534 ctsio->residual = 0; 10535 ctsio->kern_data_len = alloc_len; 10536 ctsio->kern_total_len = alloc_len; 10537 } 10538 10539 ctl_set_success(ctsio); 10540 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10541 ctsio->be_move_done = ctl_config_move_done; 10542 ctl_datamove((union ctl_io *)ctsio); 10543 return (CTL_RETVAL_COMPLETE); 10544} 10545 10546int 10547ctl_get_event_status(struct ctl_scsiio *ctsio) 10548{ 10549 struct scsi_get_event_status_header *hdr; 10550 struct scsi_get_event_status *cdb; 10551 struct ctl_lun *lun; 10552 uint32_t alloc_len, data_len; 10553 int notif_class; 10554 10555 lun = ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10556 cdb = (struct scsi_get_event_status *)ctsio->cdb; 10557 if ((cdb->byte2 & SGESN_POLLED) == 0) { 10558 ctl_set_invalid_field(ctsio, /*sks_valid*/ 1, /*command*/ 1, 10559 /*field*/ 1, /*bit_valid*/ 1, /*bit*/ 0); 10560 ctl_done((union ctl_io *)ctsio); 10561 return (CTL_RETVAL_COMPLETE); 10562 } 10563 notif_class = cdb->notif_class; 10564 alloc_len = scsi_2btoul(cdb->length); 10565 10566 data_len = sizeof(struct scsi_get_event_status_header); 10567 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 10568 ctsio->kern_sg_entries = 0; 10569 ctsio->kern_data_resid = 0; 10570 ctsio->kern_rel_offset = 0; 10571 10572 if (data_len < alloc_len) { 10573 ctsio->residual = alloc_len - data_len; 10574 ctsio->kern_data_len = data_len; 10575 ctsio->kern_total_len = data_len; 10576 } else { 10577 ctsio->residual = 0; 10578 ctsio->kern_data_len = alloc_len; 10579 ctsio->kern_total_len = alloc_len; 10580 } 10581 10582 hdr = (struct scsi_get_event_status_header *)ctsio->kern_data_ptr; 10583 scsi_ulto2b(0, hdr->descr_length); 10584 hdr->nea_class = SGESN_NEA; 10585 hdr->supported_class = 0; 10586 10587 ctl_set_success(ctsio); 10588 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10589 ctsio->be_move_done = ctl_config_move_done; 10590 ctl_datamove((union ctl_io *)ctsio); 10591 return (CTL_RETVAL_COMPLETE); 10592} 10593 10594int 10595ctl_mechanism_status(struct ctl_scsiio *ctsio) 10596{ 10597 struct scsi_mechanism_status_header *hdr; 10598 struct scsi_mechanism_status *cdb; 10599 struct ctl_lun *lun; 10600 uint32_t alloc_len, data_len; 10601 10602 lun = ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10603 cdb = (struct scsi_mechanism_status *)ctsio->cdb; 10604 alloc_len = scsi_2btoul(cdb->length); 10605 10606 data_len = sizeof(struct scsi_mechanism_status_header); 10607 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 10608 ctsio->kern_sg_entries = 0; 10609 ctsio->kern_data_resid = 0; 10610 ctsio->kern_rel_offset = 0; 10611 10612 if (data_len < alloc_len) { 10613 ctsio->residual = alloc_len - data_len; 10614 ctsio->kern_data_len = data_len; 10615 ctsio->kern_total_len = data_len; 10616 } else { 10617 ctsio->residual = 0; 10618 ctsio->kern_data_len = alloc_len; 10619 ctsio->kern_total_len = alloc_len; 10620 } 10621 10622 hdr = (struct scsi_mechanism_status_header *)ctsio->kern_data_ptr; 10623 hdr->state1 = 0x00; 10624 hdr->state2 = 0xe0; 10625 scsi_ulto3b(0, hdr->lba); 10626 hdr->slots_num = 0; 10627 scsi_ulto2b(0, hdr->slots_length); 10628 10629 ctl_set_success(ctsio); 10630 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10631 ctsio->be_move_done = ctl_config_move_done; 10632 ctl_datamove((union ctl_io *)ctsio); 10633 return (CTL_RETVAL_COMPLETE); 10634} 10635 10636static void 10637ctl_ultomsf(uint32_t lba, uint8_t *buf) 10638{ 10639 10640 lba += 150; 10641 buf[0] = 0; 10642 buf[1] = bin2bcd((lba / 75) / 60); 10643 buf[2] = bin2bcd((lba / 75) % 60); 10644 buf[3] = bin2bcd(lba % 75); 10645} 10646 10647int 10648ctl_read_toc(struct ctl_scsiio *ctsio) 10649{ 10650 struct scsi_read_toc_hdr *hdr; 10651 struct scsi_read_toc_type01_descr *descr; 10652 struct scsi_read_toc *cdb; 10653 struct ctl_lun *lun; 10654 uint32_t alloc_len, data_len; 10655 int format, msf; 10656 10657 lun = ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10658 cdb = (struct scsi_read_toc *)ctsio->cdb; 10659 msf = (cdb->byte2 & CD_MSF) != 0; 10660 format = cdb->format; 10661 alloc_len = scsi_2btoul(cdb->data_len); 10662 10663 data_len = sizeof(struct scsi_read_toc_hdr); 10664 if (format == 0) 10665 data_len += 2 * sizeof(struct scsi_read_toc_type01_descr); 10666 else 10667 data_len += sizeof(struct scsi_read_toc_type01_descr); 10668 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 10669 ctsio->kern_sg_entries = 0; 10670 ctsio->kern_data_resid = 0; 10671 ctsio->kern_rel_offset = 0; 10672 10673 if (data_len < alloc_len) { 10674 ctsio->residual = alloc_len - data_len; 10675 ctsio->kern_data_len = data_len; 10676 ctsio->kern_total_len = data_len; 10677 } else { 10678 ctsio->residual = 0; 10679 ctsio->kern_data_len = alloc_len; 10680 ctsio->kern_total_len = alloc_len; 10681 } 10682 10683 hdr = (struct scsi_read_toc_hdr *)ctsio->kern_data_ptr; 10684 if (format == 0) { 10685 scsi_ulto2b(0x12, hdr->data_length); 10686 hdr->first = 1; 10687 hdr->last = 1; 10688 descr = (struct scsi_read_toc_type01_descr *)(hdr + 1); 10689 descr->addr_ctl = 0x14; 10690 descr->track_number = 1; 10691 if (msf) 10692 ctl_ultomsf(0, descr->track_start); 10693 else 10694 scsi_ulto4b(0, descr->track_start); 10695 descr++; 10696 descr->addr_ctl = 0x14; 10697 descr->track_number = 0xaa; 10698 if (msf) 10699 ctl_ultomsf(lun->be_lun->maxlba+1, descr->track_start); 10700 else 10701 scsi_ulto4b(lun->be_lun->maxlba+1, descr->track_start); 10702 } else { 10703 scsi_ulto2b(0x0a, hdr->data_length); 10704 hdr->first = 1; 10705 hdr->last = 1; 10706 descr = (struct scsi_read_toc_type01_descr *)(hdr + 1); 10707 descr->addr_ctl = 0x14; 10708 descr->track_number = 1; 10709 if (msf) 10710 ctl_ultomsf(0, descr->track_start); 10711 else 10712 scsi_ulto4b(0, descr->track_start); 10713 } 10714 10715 ctl_set_success(ctsio); 10716 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10717 ctsio->be_move_done = ctl_config_move_done; 10718 ctl_datamove((union ctl_io *)ctsio); 10719 return (CTL_RETVAL_COMPLETE); 10720} 10721 10722/* 10723 * For known CDB types, parse the LBA and length. 10724 */ 10725static int 10726ctl_get_lba_len(union ctl_io *io, uint64_t *lba, uint64_t *len) 10727{ 10728 if (io->io_hdr.io_type != CTL_IO_SCSI) 10729 return (1); 10730 10731 switch (io->scsiio.cdb[0]) { 10732 case COMPARE_AND_WRITE: { 10733 struct scsi_compare_and_write *cdb; 10734 10735 cdb = (struct scsi_compare_and_write *)io->scsiio.cdb; 10736 10737 *lba = scsi_8btou64(cdb->addr); 10738 *len = cdb->length; 10739 break; 10740 } 10741 case READ_6: 10742 case WRITE_6: { 10743 struct scsi_rw_6 *cdb; 10744 10745 cdb = (struct scsi_rw_6 *)io->scsiio.cdb; 10746 10747 *lba = scsi_3btoul(cdb->addr); 10748 /* only 5 bits are valid in the most significant address byte */ 10749 *lba &= 0x1fffff; 10750 *len = cdb->length; 10751 break; 10752 } 10753 case READ_10: 10754 case WRITE_10: { 10755 struct scsi_rw_10 *cdb; 10756 10757 cdb = (struct scsi_rw_10 *)io->scsiio.cdb; 10758 10759 *lba = scsi_4btoul(cdb->addr); 10760 *len = scsi_2btoul(cdb->length); 10761 break; 10762 } 10763 case WRITE_VERIFY_10: { 10764 struct scsi_write_verify_10 *cdb; 10765 10766 cdb = (struct scsi_write_verify_10 *)io->scsiio.cdb; 10767 10768 *lba = scsi_4btoul(cdb->addr); 10769 *len = scsi_2btoul(cdb->length); 10770 break; 10771 } 10772 case READ_12: 10773 case WRITE_12: { 10774 struct scsi_rw_12 *cdb; 10775 10776 cdb = (struct scsi_rw_12 *)io->scsiio.cdb; 10777 10778 *lba = scsi_4btoul(cdb->addr); 10779 *len = scsi_4btoul(cdb->length); 10780 break; 10781 } 10782 case WRITE_VERIFY_12: { 10783 struct scsi_write_verify_12 *cdb; 10784 10785 cdb = (struct scsi_write_verify_12 *)io->scsiio.cdb; 10786 10787 *lba = scsi_4btoul(cdb->addr); 10788 *len = scsi_4btoul(cdb->length); 10789 break; 10790 } 10791 case READ_16: 10792 case WRITE_16: { 10793 struct scsi_rw_16 *cdb; 10794 10795 cdb = (struct scsi_rw_16 *)io->scsiio.cdb; 10796 10797 *lba = scsi_8btou64(cdb->addr); 10798 *len = scsi_4btoul(cdb->length); 10799 break; 10800 } 10801 case WRITE_ATOMIC_16: { 10802 struct scsi_write_atomic_16 *cdb; 10803 10804 cdb = (struct scsi_write_atomic_16 *)io->scsiio.cdb; 10805 10806 *lba = scsi_8btou64(cdb->addr); 10807 *len = scsi_2btoul(cdb->length); 10808 break; 10809 } 10810 case WRITE_VERIFY_16: { 10811 struct scsi_write_verify_16 *cdb; 10812 10813 cdb = (struct scsi_write_verify_16 *)io->scsiio.cdb; 10814 10815 *lba = scsi_8btou64(cdb->addr); 10816 *len = scsi_4btoul(cdb->length); 10817 break; 10818 } 10819 case WRITE_SAME_10: { 10820 struct scsi_write_same_10 *cdb; 10821 10822 cdb = (struct scsi_write_same_10 *)io->scsiio.cdb; 10823 10824 *lba = scsi_4btoul(cdb->addr); 10825 *len = scsi_2btoul(cdb->length); 10826 break; 10827 } 10828 case WRITE_SAME_16: { 10829 struct scsi_write_same_16 *cdb; 10830 10831 cdb = (struct scsi_write_same_16 *)io->scsiio.cdb; 10832 10833 *lba = scsi_8btou64(cdb->addr); 10834 *len = scsi_4btoul(cdb->length); 10835 break; 10836 } 10837 case VERIFY_10: { 10838 struct scsi_verify_10 *cdb; 10839 10840 cdb = (struct scsi_verify_10 *)io->scsiio.cdb; 10841 10842 *lba = scsi_4btoul(cdb->addr); 10843 *len = scsi_2btoul(cdb->length); 10844 break; 10845 } 10846 case VERIFY_12: { 10847 struct scsi_verify_12 *cdb; 10848 10849 cdb = (struct scsi_verify_12 *)io->scsiio.cdb; 10850 10851 *lba = scsi_4btoul(cdb->addr); 10852 *len = scsi_4btoul(cdb->length); 10853 break; 10854 } 10855 case VERIFY_16: { 10856 struct scsi_verify_16 *cdb; 10857 10858 cdb = (struct scsi_verify_16 *)io->scsiio.cdb; 10859 10860 *lba = scsi_8btou64(cdb->addr); 10861 *len = scsi_4btoul(cdb->length); 10862 break; 10863 } 10864 case UNMAP: { 10865 *lba = 0; 10866 *len = UINT64_MAX; 10867 break; 10868 } 10869 case SERVICE_ACTION_IN: { /* GET LBA STATUS */ 10870 struct scsi_get_lba_status *cdb; 10871 10872 cdb = (struct scsi_get_lba_status *)io->scsiio.cdb; 10873 *lba = scsi_8btou64(cdb->addr); 10874 *len = UINT32_MAX; 10875 break; 10876 } 10877 default: 10878 return (1); 10879 break; /* NOTREACHED */ 10880 } 10881 10882 return (0); 10883} 10884 10885static ctl_action 10886ctl_extent_check_lba(uint64_t lba1, uint64_t len1, uint64_t lba2, uint64_t len2, 10887 bool seq) 10888{ 10889 uint64_t endlba1, endlba2; 10890 10891 endlba1 = lba1 + len1 - (seq ? 0 : 1); 10892 endlba2 = lba2 + len2 - 1; 10893 10894 if ((endlba1 < lba2) || (endlba2 < lba1)) 10895 return (CTL_ACTION_PASS); 10896 else 10897 return (CTL_ACTION_BLOCK); 10898} 10899 10900static int 10901ctl_extent_check_unmap(union ctl_io *io, uint64_t lba2, uint64_t len2) 10902{ 10903 struct ctl_ptr_len_flags *ptrlen; 10904 struct scsi_unmap_desc *buf, *end, *range; 10905 uint64_t lba; 10906 uint32_t len; 10907 10908 /* If not UNMAP -- go other way. */ 10909 if (io->io_hdr.io_type != CTL_IO_SCSI || 10910 io->scsiio.cdb[0] != UNMAP) 10911 return (CTL_ACTION_ERROR); 10912 10913 /* If UNMAP without data -- block and wait for data. */ 10914 ptrlen = (struct ctl_ptr_len_flags *) 10915 &io->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 10916 if ((io->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0 || 10917 ptrlen->ptr == NULL) 10918 return (CTL_ACTION_BLOCK); 10919 10920 /* UNMAP with data -- check for collision. */ 10921 buf = (struct scsi_unmap_desc *)ptrlen->ptr; 10922 end = buf + ptrlen->len / sizeof(*buf); 10923 for (range = buf; range < end; range++) { 10924 lba = scsi_8btou64(range->lba); 10925 len = scsi_4btoul(range->length); 10926 if ((lba < lba2 + len2) && (lba + len > lba2)) 10927 return (CTL_ACTION_BLOCK); 10928 } 10929 return (CTL_ACTION_PASS); 10930} 10931 10932static ctl_action 10933ctl_extent_check(union ctl_io *io1, union ctl_io *io2, bool seq) 10934{ 10935 uint64_t lba1, lba2; 10936 uint64_t len1, len2; 10937 int retval; 10938 10939 if (ctl_get_lba_len(io2, &lba2, &len2) != 0) 10940 return (CTL_ACTION_ERROR); 10941 10942 retval = ctl_extent_check_unmap(io1, lba2, len2); 10943 if (retval != CTL_ACTION_ERROR) 10944 return (retval); 10945 10946 if (ctl_get_lba_len(io1, &lba1, &len1) != 0) 10947 return (CTL_ACTION_ERROR); 10948 10949 if (io1->io_hdr.flags & CTL_FLAG_SERSEQ_DONE) 10950 seq = FALSE; 10951 return (ctl_extent_check_lba(lba1, len1, lba2, len2, seq)); 10952} 10953 10954static ctl_action 10955ctl_extent_check_seq(union ctl_io *io1, union ctl_io *io2) 10956{ 10957 uint64_t lba1, lba2; 10958 uint64_t len1, len2; 10959 10960 if (io1->io_hdr.flags & CTL_FLAG_SERSEQ_DONE) 10961 return (CTL_ACTION_PASS); 10962 if (ctl_get_lba_len(io1, &lba1, &len1) != 0) 10963 return (CTL_ACTION_ERROR); 10964 if (ctl_get_lba_len(io2, &lba2, &len2) != 0) 10965 return (CTL_ACTION_ERROR); 10966 10967 if (lba1 + len1 == lba2) 10968 return (CTL_ACTION_BLOCK); 10969 return (CTL_ACTION_PASS); 10970} 10971 10972static ctl_action 10973ctl_check_for_blockage(struct ctl_lun *lun, union ctl_io *pending_io, 10974 union ctl_io *ooa_io) 10975{ 10976 const struct ctl_cmd_entry *pending_entry, *ooa_entry; 10977 const ctl_serialize_action *serialize_row; 10978 10979 /* 10980 * The initiator attempted multiple untagged commands at the same 10981 * time. Can't do that. 10982 */ 10983 if ((pending_io->scsiio.tag_type == CTL_TAG_UNTAGGED) 10984 && (ooa_io->scsiio.tag_type == CTL_TAG_UNTAGGED) 10985 && ((pending_io->io_hdr.nexus.targ_port == 10986 ooa_io->io_hdr.nexus.targ_port) 10987 && (pending_io->io_hdr.nexus.initid == 10988 ooa_io->io_hdr.nexus.initid)) 10989 && ((ooa_io->io_hdr.flags & (CTL_FLAG_ABORT | 10990 CTL_FLAG_STATUS_SENT)) == 0)) 10991 return (CTL_ACTION_OVERLAP); 10992 10993 /* 10994 * The initiator attempted to send multiple tagged commands with 10995 * the same ID. (It's fine if different initiators have the same 10996 * tag ID.) 10997 * 10998 * Even if all of those conditions are true, we don't kill the I/O 10999 * if the command ahead of us has been aborted. We won't end up 11000 * sending it to the FETD, and it's perfectly legal to resend a 11001 * command with the same tag number as long as the previous 11002 * instance of this tag number has been aborted somehow. 11003 */ 11004 if ((pending_io->scsiio.tag_type != CTL_TAG_UNTAGGED) 11005 && (ooa_io->scsiio.tag_type != CTL_TAG_UNTAGGED) 11006 && (pending_io->scsiio.tag_num == ooa_io->scsiio.tag_num) 11007 && ((pending_io->io_hdr.nexus.targ_port == 11008 ooa_io->io_hdr.nexus.targ_port) 11009 && (pending_io->io_hdr.nexus.initid == 11010 ooa_io->io_hdr.nexus.initid)) 11011 && ((ooa_io->io_hdr.flags & (CTL_FLAG_ABORT | 11012 CTL_FLAG_STATUS_SENT)) == 0)) 11013 return (CTL_ACTION_OVERLAP_TAG); 11014 11015 /* 11016 * If we get a head of queue tag, SAM-3 says that we should 11017 * immediately execute it. 11018 * 11019 * What happens if this command would normally block for some other 11020 * reason? e.g. a request sense with a head of queue tag 11021 * immediately after a write. Normally that would block, but this 11022 * will result in its getting executed immediately... 11023 * 11024 * We currently return "pass" instead of "skip", so we'll end up 11025 * going through the rest of the queue to check for overlapped tags. 11026 * 11027 * XXX KDM check for other types of blockage first?? 11028 */ 11029 if (pending_io->scsiio.tag_type == CTL_TAG_HEAD_OF_QUEUE) 11030 return (CTL_ACTION_PASS); 11031 11032 /* 11033 * Ordered tags have to block until all items ahead of them 11034 * have completed. If we get called with an ordered tag, we always 11035 * block, if something else is ahead of us in the queue. 11036 */ 11037 if (pending_io->scsiio.tag_type == CTL_TAG_ORDERED) 11038 return (CTL_ACTION_BLOCK); 11039 11040 /* 11041 * Simple tags get blocked until all head of queue and ordered tags 11042 * ahead of them have completed. I'm lumping untagged commands in 11043 * with simple tags here. XXX KDM is that the right thing to do? 11044 */ 11045 if (((pending_io->scsiio.tag_type == CTL_TAG_UNTAGGED) 11046 || (pending_io->scsiio.tag_type == CTL_TAG_SIMPLE)) 11047 && ((ooa_io->scsiio.tag_type == CTL_TAG_HEAD_OF_QUEUE) 11048 || (ooa_io->scsiio.tag_type == CTL_TAG_ORDERED))) 11049 return (CTL_ACTION_BLOCK); 11050 11051 pending_entry = ctl_get_cmd_entry(&pending_io->scsiio, NULL); 11052 KASSERT(pending_entry->seridx < CTL_SERIDX_COUNT, 11053 ("%s: Invalid seridx %d for pending CDB %02x %02x @ %p", 11054 __func__, pending_entry->seridx, pending_io->scsiio.cdb[0], 11055 pending_io->scsiio.cdb[1], pending_io)); 11056 ooa_entry = ctl_get_cmd_entry(&ooa_io->scsiio, NULL); 11057 if (ooa_entry->seridx == CTL_SERIDX_INVLD) 11058 return (CTL_ACTION_PASS); /* Unsupported command in OOA queue */ 11059 KASSERT(ooa_entry->seridx < CTL_SERIDX_COUNT, 11060 ("%s: Invalid seridx %d for ooa CDB %02x %02x @ %p", 11061 __func__, ooa_entry->seridx, ooa_io->scsiio.cdb[0], 11062 ooa_io->scsiio.cdb[1], ooa_io)); 11063 11064 serialize_row = ctl_serialize_table[ooa_entry->seridx]; 11065 11066 switch (serialize_row[pending_entry->seridx]) { 11067 case CTL_SER_BLOCK: 11068 return (CTL_ACTION_BLOCK); 11069 case CTL_SER_EXTENT: 11070 return (ctl_extent_check(ooa_io, pending_io, 11071 (lun->be_lun && lun->be_lun->serseq == CTL_LUN_SERSEQ_ON))); 11072 case CTL_SER_EXTENTOPT: 11073 if ((lun->MODE_CTRL.queue_flags & SCP_QUEUE_ALG_MASK) != 11074 SCP_QUEUE_ALG_UNRESTRICTED) 11075 return (ctl_extent_check(ooa_io, pending_io, 11076 (lun->be_lun && 11077 lun->be_lun->serseq == CTL_LUN_SERSEQ_ON))); 11078 return (CTL_ACTION_PASS); 11079 case CTL_SER_EXTENTSEQ: 11080 if (lun->be_lun && lun->be_lun->serseq != CTL_LUN_SERSEQ_OFF) 11081 return (ctl_extent_check_seq(ooa_io, pending_io)); 11082 return (CTL_ACTION_PASS); 11083 case CTL_SER_PASS: 11084 return (CTL_ACTION_PASS); 11085 case CTL_SER_BLOCKOPT: 11086 if ((lun->MODE_CTRL.queue_flags & SCP_QUEUE_ALG_MASK) != 11087 SCP_QUEUE_ALG_UNRESTRICTED) 11088 return (CTL_ACTION_BLOCK); 11089 return (CTL_ACTION_PASS); 11090 case CTL_SER_SKIP: 11091 return (CTL_ACTION_SKIP); 11092 default: 11093 panic("%s: Invalid serialization value %d for %d => %d", 11094 __func__, serialize_row[pending_entry->seridx], 11095 pending_entry->seridx, ooa_entry->seridx); 11096 } 11097 11098 return (CTL_ACTION_ERROR); 11099} 11100 11101/* 11102 * Check for blockage or overlaps against the OOA (Order Of Arrival) queue. 11103 * Assumptions: 11104 * - pending_io is generally either incoming, or on the blocked queue 11105 * - starting I/O is the I/O we want to start the check with. 11106 */ 11107static ctl_action 11108ctl_check_ooa(struct ctl_lun *lun, union ctl_io *pending_io, 11109 union ctl_io *starting_io) 11110{ 11111 union ctl_io *ooa_io; 11112 ctl_action action; 11113 11114 mtx_assert(&lun->lun_lock, MA_OWNED); 11115 11116 /* 11117 * Run back along the OOA queue, starting with the current 11118 * blocked I/O and going through every I/O before it on the 11119 * queue. If starting_io is NULL, we'll just end up returning 11120 * CTL_ACTION_PASS. 11121 */ 11122 for (ooa_io = starting_io; ooa_io != NULL; 11123 ooa_io = (union ctl_io *)TAILQ_PREV(&ooa_io->io_hdr, ctl_ooaq, 11124 ooa_links)){ 11125 11126 /* 11127 * This routine just checks to see whether 11128 * cur_blocked is blocked by ooa_io, which is ahead 11129 * of it in the queue. It doesn't queue/dequeue 11130 * cur_blocked. 11131 */ 11132 action = ctl_check_for_blockage(lun, pending_io, ooa_io); 11133 switch (action) { 11134 case CTL_ACTION_BLOCK: 11135 case CTL_ACTION_OVERLAP: 11136 case CTL_ACTION_OVERLAP_TAG: 11137 case CTL_ACTION_SKIP: 11138 case CTL_ACTION_ERROR: 11139 return (action); 11140 break; /* NOTREACHED */ 11141 case CTL_ACTION_PASS: 11142 break; 11143 default: 11144 panic("%s: Invalid action %d\n", __func__, action); 11145 } 11146 } 11147 11148 return (CTL_ACTION_PASS); 11149} 11150 11151/* 11152 * Assumptions: 11153 * - An I/O has just completed, and has been removed from the per-LUN OOA 11154 * queue, so some items on the blocked queue may now be unblocked. 11155 */ 11156static int 11157ctl_check_blocked(struct ctl_lun *lun) 11158{ 11159 struct ctl_softc *softc = lun->ctl_softc; 11160 union ctl_io *cur_blocked, *next_blocked; 11161 11162 mtx_assert(&lun->lun_lock, MA_OWNED); 11163 11164 /* 11165 * Run forward from the head of the blocked queue, checking each 11166 * entry against the I/Os prior to it on the OOA queue to see if 11167 * there is still any blockage. 11168 * 11169 * We cannot use the TAILQ_FOREACH() macro, because it can't deal 11170 * with our removing a variable on it while it is traversing the 11171 * list. 11172 */ 11173 for (cur_blocked = (union ctl_io *)TAILQ_FIRST(&lun->blocked_queue); 11174 cur_blocked != NULL; cur_blocked = next_blocked) { 11175 union ctl_io *prev_ooa; 11176 ctl_action action; 11177 11178 next_blocked = (union ctl_io *)TAILQ_NEXT(&cur_blocked->io_hdr, 11179 blocked_links); 11180 11181 prev_ooa = (union ctl_io *)TAILQ_PREV(&cur_blocked->io_hdr, 11182 ctl_ooaq, ooa_links); 11183 11184 /* 11185 * If cur_blocked happens to be the first item in the OOA 11186 * queue now, prev_ooa will be NULL, and the action 11187 * returned will just be CTL_ACTION_PASS. 11188 */ 11189 action = ctl_check_ooa(lun, cur_blocked, prev_ooa); 11190 11191 switch (action) { 11192 case CTL_ACTION_BLOCK: 11193 /* Nothing to do here, still blocked */ 11194 break; 11195 case CTL_ACTION_OVERLAP: 11196 case CTL_ACTION_OVERLAP_TAG: 11197 /* 11198 * This shouldn't happen! In theory we've already 11199 * checked this command for overlap... 11200 */ 11201 break; 11202 case CTL_ACTION_PASS: 11203 case CTL_ACTION_SKIP: { 11204 const struct ctl_cmd_entry *entry; 11205 11206 /* 11207 * The skip case shouldn't happen, this transaction 11208 * should have never made it onto the blocked queue. 11209 */ 11210 /* 11211 * This I/O is no longer blocked, we can remove it 11212 * from the blocked queue. Since this is a TAILQ 11213 * (doubly linked list), we can do O(1) removals 11214 * from any place on the list. 11215 */ 11216 TAILQ_REMOVE(&lun->blocked_queue, &cur_blocked->io_hdr, 11217 blocked_links); 11218 cur_blocked->io_hdr.flags &= ~CTL_FLAG_BLOCKED; 11219 11220 if ((softc->ha_mode != CTL_HA_MODE_XFER) && 11221 (cur_blocked->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)){ 11222 /* 11223 * Need to send IO back to original side to 11224 * run 11225 */ 11226 union ctl_ha_msg msg_info; 11227 11228 cur_blocked->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 11229 msg_info.hdr.original_sc = 11230 cur_blocked->io_hdr.original_sc; 11231 msg_info.hdr.serializing_sc = cur_blocked; 11232 msg_info.hdr.msg_type = CTL_MSG_R2R; 11233 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 11234 sizeof(msg_info.hdr), M_NOWAIT); 11235 break; 11236 } 11237 entry = ctl_get_cmd_entry(&cur_blocked->scsiio, NULL); 11238 11239 /* 11240 * Check this I/O for LUN state changes that may 11241 * have happened while this command was blocked. 11242 * The LUN state may have been changed by a command 11243 * ahead of us in the queue, so we need to re-check 11244 * for any states that can be caused by SCSI 11245 * commands. 11246 */ 11247 if (ctl_scsiio_lun_check(lun, entry, 11248 &cur_blocked->scsiio) == 0) { 11249 cur_blocked->io_hdr.flags |= 11250 CTL_FLAG_IS_WAS_ON_RTR; 11251 ctl_enqueue_rtr(cur_blocked); 11252 } else 11253 ctl_done(cur_blocked); 11254 break; 11255 } 11256 default: 11257 /* 11258 * This probably shouldn't happen -- we shouldn't 11259 * get CTL_ACTION_ERROR, or anything else. 11260 */ 11261 break; 11262 } 11263 } 11264 11265 return (CTL_RETVAL_COMPLETE); 11266} 11267 11268/* 11269 * This routine (with one exception) checks LUN flags that can be set by 11270 * commands ahead of us in the OOA queue. These flags have to be checked 11271 * when a command initially comes in, and when we pull a command off the 11272 * blocked queue and are preparing to execute it. The reason we have to 11273 * check these flags for commands on the blocked queue is that the LUN 11274 * state may have been changed by a command ahead of us while we're on the 11275 * blocked queue. 11276 * 11277 * Ordering is somewhat important with these checks, so please pay 11278 * careful attention to the placement of any new checks. 11279 */ 11280static int 11281ctl_scsiio_lun_check(struct ctl_lun *lun, 11282 const struct ctl_cmd_entry *entry, struct ctl_scsiio *ctsio) 11283{ 11284 struct ctl_softc *softc = lun->ctl_softc; 11285 int retval; 11286 uint32_t residx; 11287 11288 retval = 0; 11289 11290 mtx_assert(&lun->lun_lock, MA_OWNED); 11291 11292 /* 11293 * If this shelf is a secondary shelf controller, we may have to 11294 * reject some commands disallowed by HA mode and link state. 11295 */ 11296 if ((lun->flags & CTL_LUN_PRIMARY_SC) == 0) { 11297 if (softc->ha_link == CTL_HA_LINK_OFFLINE && 11298 (entry->flags & CTL_CMD_FLAG_OK_ON_UNAVAIL) == 0) { 11299 ctl_set_lun_unavail(ctsio); 11300 retval = 1; 11301 goto bailout; 11302 } 11303 if ((lun->flags & CTL_LUN_PEER_SC_PRIMARY) == 0 && 11304 (entry->flags & CTL_CMD_FLAG_OK_ON_UNAVAIL) == 0) { 11305 ctl_set_lun_transit(ctsio); 11306 retval = 1; 11307 goto bailout; 11308 } 11309 if (softc->ha_mode == CTL_HA_MODE_ACT_STBY && 11310 (entry->flags & CTL_CMD_FLAG_OK_ON_STANDBY) == 0) { 11311 ctl_set_lun_standby(ctsio); 11312 retval = 1; 11313 goto bailout; 11314 } 11315 11316 /* The rest of checks are only done on executing side */ 11317 if (softc->ha_mode == CTL_HA_MODE_XFER) 11318 goto bailout; 11319 } 11320 11321 if (entry->pattern & CTL_LUN_PAT_WRITE) { 11322 if (lun->be_lun && 11323 lun->be_lun->flags & CTL_LUN_FLAG_READONLY) { 11324 ctl_set_hw_write_protected(ctsio); 11325 retval = 1; 11326 goto bailout; 11327 } 11328 if ((lun->MODE_CTRL.eca_and_aen & SCP_SWP) != 0) { 11329 ctl_set_sense(ctsio, /*current_error*/ 1, 11330 /*sense_key*/ SSD_KEY_DATA_PROTECT, 11331 /*asc*/ 0x27, /*ascq*/ 0x02, SSD_ELEM_NONE); 11332 retval = 1; 11333 goto bailout; 11334 } 11335 } 11336 11337 /* 11338 * Check for a reservation conflict. If this command isn't allowed 11339 * even on reserved LUNs, and if this initiator isn't the one who 11340 * reserved us, reject the command with a reservation conflict. 11341 */ 11342 residx = ctl_get_initindex(&ctsio->io_hdr.nexus); 11343 if ((lun->flags & CTL_LUN_RESERVED) 11344 && ((entry->flags & CTL_CMD_FLAG_ALLOW_ON_RESV) == 0)) { 11345 if (lun->res_idx != residx) { 11346 ctl_set_reservation_conflict(ctsio); 11347 retval = 1; 11348 goto bailout; 11349 } 11350 } 11351 11352 if ((lun->flags & CTL_LUN_PR_RESERVED) == 0 || 11353 (entry->flags & CTL_CMD_FLAG_ALLOW_ON_PR_RESV)) { 11354 /* No reservation or command is allowed. */; 11355 } else if ((entry->flags & CTL_CMD_FLAG_ALLOW_ON_PR_WRESV) && 11356 (lun->pr_res_type == SPR_TYPE_WR_EX || 11357 lun->pr_res_type == SPR_TYPE_WR_EX_RO || 11358 lun->pr_res_type == SPR_TYPE_WR_EX_AR)) { 11359 /* The command is allowed for Write Exclusive resv. */; 11360 } else { 11361 /* 11362 * if we aren't registered or it's a res holder type 11363 * reservation and this isn't the res holder then set a 11364 * conflict. 11365 */ 11366 if (ctl_get_prkey(lun, residx) == 0 || 11367 (residx != lun->pr_res_idx && lun->pr_res_type < 4)) { 11368 ctl_set_reservation_conflict(ctsio); 11369 retval = 1; 11370 goto bailout; 11371 } 11372 } 11373 11374 if ((entry->flags & CTL_CMD_FLAG_OK_ON_NO_MEDIA) == 0) { 11375 if (lun->flags & CTL_LUN_EJECTED) 11376 ctl_set_lun_ejected(ctsio); 11377 else if (lun->flags & CTL_LUN_NO_MEDIA) { 11378 if (lun->flags & CTL_LUN_REMOVABLE) 11379 ctl_set_lun_no_media(ctsio); 11380 else 11381 ctl_set_lun_int_reqd(ctsio); 11382 } else if (lun->flags & CTL_LUN_STOPPED) 11383 ctl_set_lun_stopped(ctsio); 11384 else 11385 goto bailout; 11386 retval = 1; 11387 goto bailout; 11388 } 11389 11390bailout: 11391 return (retval); 11392} 11393 11394static void 11395ctl_failover_io(union ctl_io *io, int have_lock) 11396{ 11397 ctl_set_busy(&io->scsiio); 11398 ctl_done(io); 11399} 11400 11401static void 11402ctl_failover_lun(union ctl_io *rio) 11403{ 11404 struct ctl_softc *softc = control_softc; 11405 struct ctl_lun *lun; 11406 struct ctl_io_hdr *io, *next_io; 11407 uint32_t targ_lun; 11408 11409 targ_lun = rio->io_hdr.nexus.targ_mapped_lun; 11410 CTL_DEBUG_PRINT(("FAILOVER for lun %ju\n", targ_lun)); 11411 11412 /* Find and lock the LUN. */ 11413 mtx_lock(&softc->ctl_lock); 11414 if (targ_lun > CTL_MAX_LUNS || 11415 (lun = softc->ctl_luns[targ_lun]) == NULL) { 11416 mtx_unlock(&softc->ctl_lock); 11417 return; 11418 } 11419 mtx_lock(&lun->lun_lock); 11420 mtx_unlock(&softc->ctl_lock); 11421 if (lun->flags & CTL_LUN_DISABLED) { 11422 mtx_unlock(&lun->lun_lock); 11423 return; 11424 } 11425 11426 if (softc->ha_mode == CTL_HA_MODE_XFER) { 11427 TAILQ_FOREACH_SAFE(io, &lun->ooa_queue, ooa_links, next_io) { 11428 /* We are master */ 11429 if (io->flags & CTL_FLAG_FROM_OTHER_SC) { 11430 if (io->flags & CTL_FLAG_IO_ACTIVE) { 11431 io->flags |= CTL_FLAG_ABORT; 11432 io->flags |= CTL_FLAG_FAILOVER; 11433 } else { /* This can be only due to DATAMOVE */ 11434 io->msg_type = CTL_MSG_DATAMOVE_DONE; 11435 io->flags &= ~CTL_FLAG_DMA_INPROG; 11436 io->flags |= CTL_FLAG_IO_ACTIVE; 11437 io->port_status = 31340; 11438 ctl_enqueue_isc((union ctl_io *)io); 11439 } 11440 } 11441 /* We are slave */ 11442 if (io->flags & CTL_FLAG_SENT_2OTHER_SC) { 11443 io->flags &= ~CTL_FLAG_SENT_2OTHER_SC; 11444 if (io->flags & CTL_FLAG_IO_ACTIVE) { 11445 io->flags |= CTL_FLAG_FAILOVER; 11446 } else { 11447 ctl_set_busy(&((union ctl_io *)io)-> 11448 scsiio); 11449 ctl_done((union ctl_io *)io); 11450 } 11451 } 11452 } 11453 } else { /* SERIALIZE modes */ 11454 TAILQ_FOREACH_SAFE(io, &lun->blocked_queue, blocked_links, 11455 next_io) { 11456 /* We are master */ 11457 if (io->flags & CTL_FLAG_FROM_OTHER_SC) { 11458 TAILQ_REMOVE(&lun->blocked_queue, io, 11459 blocked_links); 11460 io->flags &= ~CTL_FLAG_BLOCKED; 11461 TAILQ_REMOVE(&lun->ooa_queue, io, ooa_links); 11462 ctl_free_io((union ctl_io *)io); 11463 } 11464 } 11465 TAILQ_FOREACH_SAFE(io, &lun->ooa_queue, ooa_links, next_io) { 11466 /* We are master */ 11467 if (io->flags & CTL_FLAG_FROM_OTHER_SC) { 11468 TAILQ_REMOVE(&lun->ooa_queue, io, ooa_links); 11469 ctl_free_io((union ctl_io *)io); 11470 } 11471 /* We are slave */ 11472 if (io->flags & CTL_FLAG_SENT_2OTHER_SC) { 11473 io->flags &= ~CTL_FLAG_SENT_2OTHER_SC; 11474 if (!(io->flags & CTL_FLAG_IO_ACTIVE)) { 11475 ctl_set_busy(&((union ctl_io *)io)-> 11476 scsiio); 11477 ctl_done((union ctl_io *)io); 11478 } 11479 } 11480 } 11481 ctl_check_blocked(lun); 11482 } 11483 mtx_unlock(&lun->lun_lock); 11484} 11485 11486static int 11487ctl_scsiio_precheck(struct ctl_softc *softc, struct ctl_scsiio *ctsio) 11488{ 11489 struct ctl_lun *lun; 11490 const struct ctl_cmd_entry *entry; 11491 uint32_t initidx, targ_lun; 11492 int retval = 0; 11493 11494 lun = NULL; 11495 targ_lun = ctsio->io_hdr.nexus.targ_mapped_lun; 11496 if (targ_lun < CTL_MAX_LUNS) 11497 lun = softc->ctl_luns[targ_lun]; 11498 if (lun) { 11499 /* 11500 * If the LUN is invalid, pretend that it doesn't exist. 11501 * It will go away as soon as all pending I/O has been 11502 * completed. 11503 */ 11504 mtx_lock(&lun->lun_lock); 11505 if (lun->flags & CTL_LUN_DISABLED) { 11506 mtx_unlock(&lun->lun_lock); 11507 lun = NULL; 11508 } 11509 } 11510 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr = lun; 11511 if (lun) { 11512 ctsio->io_hdr.ctl_private[CTL_PRIV_BACKEND_LUN].ptr = 11513 lun->be_lun; 11514 11515 /* 11516 * Every I/O goes into the OOA queue for a particular LUN, 11517 * and stays there until completion. 11518 */ 11519#ifdef CTL_TIME_IO 11520 if (TAILQ_EMPTY(&lun->ooa_queue)) 11521 lun->idle_time += getsbinuptime() - lun->last_busy; 11522#endif 11523 TAILQ_INSERT_TAIL(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 11524 } 11525 11526 /* Get command entry and return error if it is unsuppotyed. */ 11527 entry = ctl_validate_command(ctsio); 11528 if (entry == NULL) { 11529 if (lun) 11530 mtx_unlock(&lun->lun_lock); 11531 return (retval); 11532 } 11533 11534 ctsio->io_hdr.flags &= ~CTL_FLAG_DATA_MASK; 11535 ctsio->io_hdr.flags |= entry->flags & CTL_FLAG_DATA_MASK; 11536 11537 /* 11538 * Check to see whether we can send this command to LUNs that don't 11539 * exist. This should pretty much only be the case for inquiry 11540 * and request sense. Further checks, below, really require having 11541 * a LUN, so we can't really check the command anymore. Just put 11542 * it on the rtr queue. 11543 */ 11544 if (lun == NULL) { 11545 if (entry->flags & CTL_CMD_FLAG_OK_ON_NO_LUN) { 11546 ctsio->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 11547 ctl_enqueue_rtr((union ctl_io *)ctsio); 11548 return (retval); 11549 } 11550 11551 ctl_set_unsupported_lun(ctsio); 11552 ctl_done((union ctl_io *)ctsio); 11553 CTL_DEBUG_PRINT(("ctl_scsiio_precheck: bailing out due to invalid LUN\n")); 11554 return (retval); 11555 } else { 11556 /* 11557 * Make sure we support this particular command on this LUN. 11558 * e.g., we don't support writes to the control LUN. 11559 */ 11560 if (!ctl_cmd_applicable(lun->be_lun->lun_type, entry)) { 11561 mtx_unlock(&lun->lun_lock); 11562 ctl_set_invalid_opcode(ctsio); 11563 ctl_done((union ctl_io *)ctsio); 11564 return (retval); 11565 } 11566 } 11567 11568 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 11569 11570#ifdef CTL_WITH_CA 11571 /* 11572 * If we've got a request sense, it'll clear the contingent 11573 * allegiance condition. Otherwise, if we have a CA condition for 11574 * this initiator, clear it, because it sent down a command other 11575 * than request sense. 11576 */ 11577 if ((ctsio->cdb[0] != REQUEST_SENSE) 11578 && (ctl_is_set(lun->have_ca, initidx))) 11579 ctl_clear_mask(lun->have_ca, initidx); 11580#endif 11581 11582 /* 11583 * If the command has this flag set, it handles its own unit 11584 * attention reporting, we shouldn't do anything. Otherwise we 11585 * check for any pending unit attentions, and send them back to the 11586 * initiator. We only do this when a command initially comes in, 11587 * not when we pull it off the blocked queue. 11588 * 11589 * According to SAM-3, section 5.3.2, the order that things get 11590 * presented back to the host is basically unit attentions caused 11591 * by some sort of reset event, busy status, reservation conflicts 11592 * or task set full, and finally any other status. 11593 * 11594 * One issue here is that some of the unit attentions we report 11595 * don't fall into the "reset" category (e.g. "reported luns data 11596 * has changed"). So reporting it here, before the reservation 11597 * check, may be technically wrong. I guess the only thing to do 11598 * would be to check for and report the reset events here, and then 11599 * check for the other unit attention types after we check for a 11600 * reservation conflict. 11601 * 11602 * XXX KDM need to fix this 11603 */ 11604 if ((entry->flags & CTL_CMD_FLAG_NO_SENSE) == 0) { 11605 ctl_ua_type ua_type; 11606 u_int sense_len = 0; 11607 11608 ua_type = ctl_build_ua(lun, initidx, &ctsio->sense_data, 11609 &sense_len, SSD_TYPE_NONE); 11610 if (ua_type != CTL_UA_NONE) { 11611 mtx_unlock(&lun->lun_lock); 11612 ctsio->scsi_status = SCSI_STATUS_CHECK_COND; 11613 ctsio->io_hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 11614 ctsio->sense_len = sense_len; 11615 ctl_done((union ctl_io *)ctsio); 11616 return (retval); 11617 } 11618 } 11619 11620 11621 if (ctl_scsiio_lun_check(lun, entry, ctsio) != 0) { 11622 mtx_unlock(&lun->lun_lock); 11623 ctl_done((union ctl_io *)ctsio); 11624 return (retval); 11625 } 11626 11627 /* 11628 * XXX CHD this is where we want to send IO to other side if 11629 * this LUN is secondary on this SC. We will need to make a copy 11630 * of the IO and flag the IO on this side as SENT_2OTHER and the flag 11631 * the copy we send as FROM_OTHER. 11632 * We also need to stuff the address of the original IO so we can 11633 * find it easily. Something similar will need be done on the other 11634 * side so when we are done we can find the copy. 11635 */ 11636 if ((lun->flags & CTL_LUN_PRIMARY_SC) == 0 && 11637 (lun->flags & CTL_LUN_PEER_SC_PRIMARY) != 0 && 11638 (entry->flags & CTL_CMD_FLAG_RUN_HERE) == 0) { 11639 union ctl_ha_msg msg_info; 11640 int isc_retval; 11641 11642 ctsio->io_hdr.flags |= CTL_FLAG_SENT_2OTHER_SC; 11643 ctsio->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 11644 mtx_unlock(&lun->lun_lock); 11645 11646 msg_info.hdr.msg_type = CTL_MSG_SERIALIZE; 11647 msg_info.hdr.original_sc = (union ctl_io *)ctsio; 11648 msg_info.hdr.serializing_sc = NULL; 11649 msg_info.hdr.nexus = ctsio->io_hdr.nexus; 11650 msg_info.scsi.tag_num = ctsio->tag_num; 11651 msg_info.scsi.tag_type = ctsio->tag_type; 11652 msg_info.scsi.cdb_len = ctsio->cdb_len; 11653 memcpy(msg_info.scsi.cdb, ctsio->cdb, CTL_MAX_CDBLEN); 11654 11655 if ((isc_retval = ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 11656 sizeof(msg_info.scsi) - sizeof(msg_info.scsi.sense_data), 11657 M_WAITOK)) > CTL_HA_STATUS_SUCCESS) { 11658 ctl_set_busy(ctsio); 11659 ctl_done((union ctl_io *)ctsio); 11660 return (retval); 11661 } 11662 return (retval); 11663 } 11664 11665 switch (ctl_check_ooa(lun, (union ctl_io *)ctsio, 11666 (union ctl_io *)TAILQ_PREV(&ctsio->io_hdr, 11667 ctl_ooaq, ooa_links))) { 11668 case CTL_ACTION_BLOCK: 11669 ctsio->io_hdr.flags |= CTL_FLAG_BLOCKED; 11670 TAILQ_INSERT_TAIL(&lun->blocked_queue, &ctsio->io_hdr, 11671 blocked_links); 11672 mtx_unlock(&lun->lun_lock); 11673 return (retval); 11674 case CTL_ACTION_PASS: 11675 case CTL_ACTION_SKIP: 11676 ctsio->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 11677 mtx_unlock(&lun->lun_lock); 11678 ctl_enqueue_rtr((union ctl_io *)ctsio); 11679 break; 11680 case CTL_ACTION_OVERLAP: 11681 mtx_unlock(&lun->lun_lock); 11682 ctl_set_overlapped_cmd(ctsio); 11683 ctl_done((union ctl_io *)ctsio); 11684 break; 11685 case CTL_ACTION_OVERLAP_TAG: 11686 mtx_unlock(&lun->lun_lock); 11687 ctl_set_overlapped_tag(ctsio, ctsio->tag_num & 0xff); 11688 ctl_done((union ctl_io *)ctsio); 11689 break; 11690 case CTL_ACTION_ERROR: 11691 default: 11692 mtx_unlock(&lun->lun_lock); 11693 ctl_set_internal_failure(ctsio, 11694 /*sks_valid*/ 0, 11695 /*retry_count*/ 0); 11696 ctl_done((union ctl_io *)ctsio); 11697 break; 11698 } 11699 return (retval); 11700} 11701 11702const struct ctl_cmd_entry * 11703ctl_get_cmd_entry(struct ctl_scsiio *ctsio, int *sa) 11704{ 11705 const struct ctl_cmd_entry *entry; 11706 int service_action; 11707 11708 entry = &ctl_cmd_table[ctsio->cdb[0]]; 11709 if (sa) 11710 *sa = ((entry->flags & CTL_CMD_FLAG_SA5) != 0); 11711 if (entry->flags & CTL_CMD_FLAG_SA5) { 11712 service_action = ctsio->cdb[1] & SERVICE_ACTION_MASK; 11713 entry = &((const struct ctl_cmd_entry *) 11714 entry->execute)[service_action]; 11715 } 11716 return (entry); 11717} 11718 11719const struct ctl_cmd_entry * 11720ctl_validate_command(struct ctl_scsiio *ctsio) 11721{ 11722 const struct ctl_cmd_entry *entry; 11723 int i, sa; 11724 uint8_t diff; 11725 11726 entry = ctl_get_cmd_entry(ctsio, &sa); 11727 if (entry->execute == NULL) { 11728 if (sa) 11729 ctl_set_invalid_field(ctsio, 11730 /*sks_valid*/ 1, 11731 /*command*/ 1, 11732 /*field*/ 1, 11733 /*bit_valid*/ 1, 11734 /*bit*/ 4); 11735 else 11736 ctl_set_invalid_opcode(ctsio); 11737 ctl_done((union ctl_io *)ctsio); 11738 return (NULL); 11739 } 11740 KASSERT(entry->length > 0, 11741 ("Not defined length for command 0x%02x/0x%02x", 11742 ctsio->cdb[0], ctsio->cdb[1])); 11743 for (i = 1; i < entry->length; i++) { 11744 diff = ctsio->cdb[i] & ~entry->usage[i - 1]; 11745 if (diff == 0) 11746 continue; 11747 ctl_set_invalid_field(ctsio, 11748 /*sks_valid*/ 1, 11749 /*command*/ 1, 11750 /*field*/ i, 11751 /*bit_valid*/ 1, 11752 /*bit*/ fls(diff) - 1); 11753 ctl_done((union ctl_io *)ctsio); 11754 return (NULL); 11755 } 11756 return (entry); 11757} 11758 11759static int 11760ctl_cmd_applicable(uint8_t lun_type, const struct ctl_cmd_entry *entry) 11761{ 11762 11763 switch (lun_type) { 11764 case T_DIRECT: 11765 if ((entry->flags & CTL_CMD_FLAG_OK_ON_DIRECT) == 0) 11766 return (0); 11767 break; 11768 case T_PROCESSOR: 11769 if ((entry->flags & CTL_CMD_FLAG_OK_ON_PROC) == 0) 11770 return (0); 11771 break; 11772 case T_CDROM: 11773 if ((entry->flags & CTL_CMD_FLAG_OK_ON_CDROM) == 0) 11774 return (0); 11775 break; 11776 default: 11777 return (0); 11778 } 11779 return (1); 11780} 11781 11782static int 11783ctl_scsiio(struct ctl_scsiio *ctsio) 11784{ 11785 int retval; 11786 const struct ctl_cmd_entry *entry; 11787 11788 retval = CTL_RETVAL_COMPLETE; 11789 11790 CTL_DEBUG_PRINT(("ctl_scsiio cdb[0]=%02X\n", ctsio->cdb[0])); 11791 11792 entry = ctl_get_cmd_entry(ctsio, NULL); 11793 11794 /* 11795 * If this I/O has been aborted, just send it straight to 11796 * ctl_done() without executing it. 11797 */ 11798 if (ctsio->io_hdr.flags & CTL_FLAG_ABORT) { 11799 ctl_done((union ctl_io *)ctsio); 11800 goto bailout; 11801 } 11802 11803 /* 11804 * All the checks should have been handled by ctl_scsiio_precheck(). 11805 * We should be clear now to just execute the I/O. 11806 */ 11807 retval = entry->execute(ctsio); 11808 11809bailout: 11810 return (retval); 11811} 11812 11813/* 11814 * Since we only implement one target right now, a bus reset simply resets 11815 * our single target. 11816 */ 11817static int 11818ctl_bus_reset(struct ctl_softc *softc, union ctl_io *io) 11819{ 11820 return(ctl_target_reset(softc, io, CTL_UA_BUS_RESET)); 11821} 11822 11823static int 11824ctl_target_reset(struct ctl_softc *softc, union ctl_io *io, 11825 ctl_ua_type ua_type) 11826{ 11827 struct ctl_port *port; 11828 struct ctl_lun *lun; 11829 int retval; 11830 11831 if (!(io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)) { 11832 union ctl_ha_msg msg_info; 11833 11834 msg_info.hdr.nexus = io->io_hdr.nexus; 11835 if (ua_type==CTL_UA_TARG_RESET) 11836 msg_info.task.task_action = CTL_TASK_TARGET_RESET; 11837 else 11838 msg_info.task.task_action = CTL_TASK_BUS_RESET; 11839 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 11840 msg_info.hdr.original_sc = NULL; 11841 msg_info.hdr.serializing_sc = NULL; 11842 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 11843 sizeof(msg_info.task), M_WAITOK); 11844 } 11845 retval = 0; 11846 11847 mtx_lock(&softc->ctl_lock); 11848 port = ctl_io_port(&io->io_hdr); 11849 STAILQ_FOREACH(lun, &softc->lun_list, links) { 11850 if (port != NULL && 11851 ctl_lun_map_to_port(port, lun->lun) == UINT32_MAX) 11852 continue; 11853 retval += ctl_do_lun_reset(lun, io, ua_type); 11854 } 11855 mtx_unlock(&softc->ctl_lock); 11856 io->taskio.task_status = CTL_TASK_FUNCTION_COMPLETE; 11857 return (retval); 11858} 11859 11860/* 11861 * The LUN should always be set. The I/O is optional, and is used to 11862 * distinguish between I/Os sent by this initiator, and by other 11863 * initiators. We set unit attention for initiators other than this one. 11864 * SAM-3 is vague on this point. It does say that a unit attention should 11865 * be established for other initiators when a LUN is reset (see section 11866 * 5.7.3), but it doesn't specifically say that the unit attention should 11867 * be established for this particular initiator when a LUN is reset. Here 11868 * is the relevant text, from SAM-3 rev 8: 11869 * 11870 * 5.7.2 When a SCSI initiator port aborts its own tasks 11871 * 11872 * When a SCSI initiator port causes its own task(s) to be aborted, no 11873 * notification that the task(s) have been aborted shall be returned to 11874 * the SCSI initiator port other than the completion response for the 11875 * command or task management function action that caused the task(s) to 11876 * be aborted and notification(s) associated with related effects of the 11877 * action (e.g., a reset unit attention condition). 11878 * 11879 * XXX KDM for now, we're setting unit attention for all initiators. 11880 */ 11881static int 11882ctl_do_lun_reset(struct ctl_lun *lun, union ctl_io *io, ctl_ua_type ua_type) 11883{ 11884 union ctl_io *xio; 11885#if 0 11886 uint32_t initidx; 11887#endif 11888 int i; 11889 11890 mtx_lock(&lun->lun_lock); 11891 /* 11892 * Run through the OOA queue and abort each I/O. 11893 */ 11894 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 11895 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 11896 xio->io_hdr.flags |= CTL_FLAG_ABORT | CTL_FLAG_ABORT_STATUS; 11897 } 11898 11899 /* 11900 * This version sets unit attention for every 11901 */ 11902#if 0 11903 initidx = ctl_get_initindex(&io->io_hdr.nexus); 11904 ctl_est_ua_all(lun, initidx, ua_type); 11905#else 11906 ctl_est_ua_all(lun, -1, ua_type); 11907#endif 11908 11909 /* 11910 * A reset (any kind, really) clears reservations established with 11911 * RESERVE/RELEASE. It does not clear reservations established 11912 * with PERSISTENT RESERVE OUT, but we don't support that at the 11913 * moment anyway. See SPC-2, section 5.6. SPC-3 doesn't address 11914 * reservations made with the RESERVE/RELEASE commands, because 11915 * those commands are obsolete in SPC-3. 11916 */ 11917 lun->flags &= ~CTL_LUN_RESERVED; 11918 11919#ifdef CTL_WITH_CA 11920 for (i = 0; i < CTL_MAX_INITIATORS; i++) 11921 ctl_clear_mask(lun->have_ca, i); 11922#endif 11923 lun->prevent_count = 0; 11924 for (i = 0; i < CTL_MAX_INITIATORS; i++) 11925 ctl_clear_mask(lun->prevent, i); 11926 mtx_unlock(&lun->lun_lock); 11927 11928 return (0); 11929} 11930 11931static int 11932ctl_lun_reset(struct ctl_softc *softc, union ctl_io *io) 11933{ 11934 struct ctl_lun *lun; 11935 uint32_t targ_lun; 11936 int retval; 11937 11938 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 11939 mtx_lock(&softc->ctl_lock); 11940 if (targ_lun >= CTL_MAX_LUNS || 11941 (lun = softc->ctl_luns[targ_lun]) == NULL) { 11942 mtx_unlock(&softc->ctl_lock); 11943 io->taskio.task_status = CTL_TASK_LUN_DOES_NOT_EXIST; 11944 return (1); 11945 } 11946 retval = ctl_do_lun_reset(lun, io, CTL_UA_LUN_RESET); 11947 mtx_unlock(&softc->ctl_lock); 11948 io->taskio.task_status = CTL_TASK_FUNCTION_COMPLETE; 11949 11950 if ((io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) == 0) { 11951 union ctl_ha_msg msg_info; 11952 11953 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 11954 msg_info.hdr.nexus = io->io_hdr.nexus; 11955 msg_info.task.task_action = CTL_TASK_LUN_RESET; 11956 msg_info.hdr.original_sc = NULL; 11957 msg_info.hdr.serializing_sc = NULL; 11958 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 11959 sizeof(msg_info.task), M_WAITOK); 11960 } 11961 return (retval); 11962} 11963 11964static void 11965ctl_abort_tasks_lun(struct ctl_lun *lun, uint32_t targ_port, uint32_t init_id, 11966 int other_sc) 11967{ 11968 union ctl_io *xio; 11969 11970 mtx_assert(&lun->lun_lock, MA_OWNED); 11971 11972 /* 11973 * Run through the OOA queue and attempt to find the given I/O. 11974 * The target port, initiator ID, tag type and tag number have to 11975 * match the values that we got from the initiator. If we have an 11976 * untagged command to abort, simply abort the first untagged command 11977 * we come to. We only allow one untagged command at a time of course. 11978 */ 11979 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 11980 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 11981 11982 if ((targ_port == UINT32_MAX || 11983 targ_port == xio->io_hdr.nexus.targ_port) && 11984 (init_id == UINT32_MAX || 11985 init_id == xio->io_hdr.nexus.initid)) { 11986 if (targ_port != xio->io_hdr.nexus.targ_port || 11987 init_id != xio->io_hdr.nexus.initid) 11988 xio->io_hdr.flags |= CTL_FLAG_ABORT_STATUS; 11989 xio->io_hdr.flags |= CTL_FLAG_ABORT; 11990 if (!other_sc && !(lun->flags & CTL_LUN_PRIMARY_SC)) { 11991 union ctl_ha_msg msg_info; 11992 11993 msg_info.hdr.nexus = xio->io_hdr.nexus; 11994 msg_info.task.task_action = CTL_TASK_ABORT_TASK; 11995 msg_info.task.tag_num = xio->scsiio.tag_num; 11996 msg_info.task.tag_type = xio->scsiio.tag_type; 11997 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 11998 msg_info.hdr.original_sc = NULL; 11999 msg_info.hdr.serializing_sc = NULL; 12000 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 12001 sizeof(msg_info.task), M_NOWAIT); 12002 } 12003 } 12004 } 12005} 12006 12007static int 12008ctl_abort_task_set(union ctl_io *io) 12009{ 12010 struct ctl_softc *softc = control_softc; 12011 struct ctl_lun *lun; 12012 uint32_t targ_lun; 12013 12014 /* 12015 * Look up the LUN. 12016 */ 12017 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12018 mtx_lock(&softc->ctl_lock); 12019 if (targ_lun >= CTL_MAX_LUNS || 12020 (lun = softc->ctl_luns[targ_lun]) == NULL) { 12021 mtx_unlock(&softc->ctl_lock); 12022 io->taskio.task_status = CTL_TASK_LUN_DOES_NOT_EXIST; 12023 return (1); 12024 } 12025 12026 mtx_lock(&lun->lun_lock); 12027 mtx_unlock(&softc->ctl_lock); 12028 if (io->taskio.task_action == CTL_TASK_ABORT_TASK_SET) { 12029 ctl_abort_tasks_lun(lun, io->io_hdr.nexus.targ_port, 12030 io->io_hdr.nexus.initid, 12031 (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) != 0); 12032 } else { /* CTL_TASK_CLEAR_TASK_SET */ 12033 ctl_abort_tasks_lun(lun, UINT32_MAX, UINT32_MAX, 12034 (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) != 0); 12035 } 12036 mtx_unlock(&lun->lun_lock); 12037 io->taskio.task_status = CTL_TASK_FUNCTION_COMPLETE; 12038 return (0); 12039} 12040 12041static int 12042ctl_i_t_nexus_reset(union ctl_io *io) 12043{ 12044 struct ctl_softc *softc = control_softc; 12045 struct ctl_lun *lun; 12046 uint32_t initidx; 12047 12048 if (!(io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)) { 12049 union ctl_ha_msg msg_info; 12050 12051 msg_info.hdr.nexus = io->io_hdr.nexus; 12052 msg_info.task.task_action = CTL_TASK_I_T_NEXUS_RESET; 12053 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 12054 msg_info.hdr.original_sc = NULL; 12055 msg_info.hdr.serializing_sc = NULL; 12056 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 12057 sizeof(msg_info.task), M_WAITOK); 12058 } 12059 12060 initidx = ctl_get_initindex(&io->io_hdr.nexus); 12061 mtx_lock(&softc->ctl_lock); 12062 STAILQ_FOREACH(lun, &softc->lun_list, links) { 12063 mtx_lock(&lun->lun_lock); 12064 ctl_abort_tasks_lun(lun, io->io_hdr.nexus.targ_port, 12065 io->io_hdr.nexus.initid, 1); 12066#ifdef CTL_WITH_CA 12067 ctl_clear_mask(lun->have_ca, initidx); 12068#endif 12069 if ((lun->flags & CTL_LUN_RESERVED) && (lun->res_idx == initidx)) 12070 lun->flags &= ~CTL_LUN_RESERVED; 12071 if (ctl_is_set(lun->prevent, initidx)) { 12072 ctl_clear_mask(lun->prevent, initidx); 12073 lun->prevent_count--; 12074 } 12075 ctl_est_ua(lun, initidx, CTL_UA_I_T_NEXUS_LOSS); 12076 mtx_unlock(&lun->lun_lock); 12077 } 12078 mtx_unlock(&softc->ctl_lock); 12079 io->taskio.task_status = CTL_TASK_FUNCTION_COMPLETE; 12080 return (0); 12081} 12082 12083static int 12084ctl_abort_task(union ctl_io *io) 12085{ 12086 union ctl_io *xio; 12087 struct ctl_lun *lun; 12088 struct ctl_softc *softc; 12089#if 0 12090 struct sbuf sb; 12091 char printbuf[128]; 12092#endif 12093 int found; 12094 uint32_t targ_lun; 12095 12096 softc = control_softc; 12097 found = 0; 12098 12099 /* 12100 * Look up the LUN. 12101 */ 12102 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12103 mtx_lock(&softc->ctl_lock); 12104 if (targ_lun >= CTL_MAX_LUNS || 12105 (lun = softc->ctl_luns[targ_lun]) == NULL) { 12106 mtx_unlock(&softc->ctl_lock); 12107 io->taskio.task_status = CTL_TASK_LUN_DOES_NOT_EXIST; 12108 return (1); 12109 } 12110 12111#if 0 12112 printf("ctl_abort_task: called for lun %lld, tag %d type %d\n", 12113 lun->lun, io->taskio.tag_num, io->taskio.tag_type); 12114#endif 12115 12116 mtx_lock(&lun->lun_lock); 12117 mtx_unlock(&softc->ctl_lock); 12118 /* 12119 * Run through the OOA queue and attempt to find the given I/O. 12120 * The target port, initiator ID, tag type and tag number have to 12121 * match the values that we got from the initiator. If we have an 12122 * untagged command to abort, simply abort the first untagged command 12123 * we come to. We only allow one untagged command at a time of course. 12124 */ 12125 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 12126 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 12127#if 0 12128 sbuf_new(&sb, printbuf, sizeof(printbuf), SBUF_FIXEDLEN); 12129 12130 sbuf_printf(&sb, "LUN %lld tag %d type %d%s%s%s%s: ", 12131 lun->lun, xio->scsiio.tag_num, 12132 xio->scsiio.tag_type, 12133 (xio->io_hdr.blocked_links.tqe_prev 12134 == NULL) ? "" : " BLOCKED", 12135 (xio->io_hdr.flags & 12136 CTL_FLAG_DMA_INPROG) ? " DMA" : "", 12137 (xio->io_hdr.flags & 12138 CTL_FLAG_ABORT) ? " ABORT" : "", 12139 (xio->io_hdr.flags & 12140 CTL_FLAG_IS_WAS_ON_RTR ? " RTR" : "")); 12141 ctl_scsi_command_string(&xio->scsiio, NULL, &sb); 12142 sbuf_finish(&sb); 12143 printf("%s\n", sbuf_data(&sb)); 12144#endif 12145 12146 if ((xio->io_hdr.nexus.targ_port != io->io_hdr.nexus.targ_port) 12147 || (xio->io_hdr.nexus.initid != io->io_hdr.nexus.initid) 12148 || (xio->io_hdr.flags & CTL_FLAG_ABORT)) 12149 continue; 12150 12151 /* 12152 * If the abort says that the task is untagged, the 12153 * task in the queue must be untagged. Otherwise, 12154 * we just check to see whether the tag numbers 12155 * match. This is because the QLogic firmware 12156 * doesn't pass back the tag type in an abort 12157 * request. 12158 */ 12159#if 0 12160 if (((xio->scsiio.tag_type == CTL_TAG_UNTAGGED) 12161 && (io->taskio.tag_type == CTL_TAG_UNTAGGED)) 12162 || (xio->scsiio.tag_num == io->taskio.tag_num)) 12163#endif 12164 /* 12165 * XXX KDM we've got problems with FC, because it 12166 * doesn't send down a tag type with aborts. So we 12167 * can only really go by the tag number... 12168 * This may cause problems with parallel SCSI. 12169 * Need to figure that out!! 12170 */ 12171 if (xio->scsiio.tag_num == io->taskio.tag_num) { 12172 xio->io_hdr.flags |= CTL_FLAG_ABORT; 12173 found = 1; 12174 if ((io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) == 0 && 12175 !(lun->flags & CTL_LUN_PRIMARY_SC)) { 12176 union ctl_ha_msg msg_info; 12177 12178 msg_info.hdr.nexus = io->io_hdr.nexus; 12179 msg_info.task.task_action = CTL_TASK_ABORT_TASK; 12180 msg_info.task.tag_num = io->taskio.tag_num; 12181 msg_info.task.tag_type = io->taskio.tag_type; 12182 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 12183 msg_info.hdr.original_sc = NULL; 12184 msg_info.hdr.serializing_sc = NULL; 12185#if 0 12186 printf("Sent Abort to other side\n"); 12187#endif 12188 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 12189 sizeof(msg_info.task), M_NOWAIT); 12190 } 12191#if 0 12192 printf("ctl_abort_task: found I/O to abort\n"); 12193#endif 12194 } 12195 } 12196 mtx_unlock(&lun->lun_lock); 12197 12198 if (found == 0) { 12199 /* 12200 * This isn't really an error. It's entirely possible for 12201 * the abort and command completion to cross on the wire. 12202 * This is more of an informative/diagnostic error. 12203 */ 12204#if 0 12205 printf("ctl_abort_task: ABORT sent for nonexistent I/O: " 12206 "%u:%u:%u tag %d type %d\n", 12207 io->io_hdr.nexus.initid, 12208 io->io_hdr.nexus.targ_port, 12209 io->io_hdr.nexus.targ_lun, io->taskio.tag_num, 12210 io->taskio.tag_type); 12211#endif 12212 } 12213 io->taskio.task_status = CTL_TASK_FUNCTION_COMPLETE; 12214 return (0); 12215} 12216 12217static int 12218ctl_query_task(union ctl_io *io, int task_set) 12219{ 12220 union ctl_io *xio; 12221 struct ctl_lun *lun; 12222 struct ctl_softc *softc; 12223 int found = 0; 12224 uint32_t targ_lun; 12225 12226 softc = control_softc; 12227 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12228 mtx_lock(&softc->ctl_lock); 12229 if (targ_lun >= CTL_MAX_LUNS || 12230 (lun = softc->ctl_luns[targ_lun]) == NULL) { 12231 mtx_unlock(&softc->ctl_lock); 12232 io->taskio.task_status = CTL_TASK_LUN_DOES_NOT_EXIST; 12233 return (1); 12234 } 12235 mtx_lock(&lun->lun_lock); 12236 mtx_unlock(&softc->ctl_lock); 12237 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 12238 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 12239 12240 if ((xio->io_hdr.nexus.targ_port != io->io_hdr.nexus.targ_port) 12241 || (xio->io_hdr.nexus.initid != io->io_hdr.nexus.initid) 12242 || (xio->io_hdr.flags & CTL_FLAG_ABORT)) 12243 continue; 12244 12245 if (task_set || xio->scsiio.tag_num == io->taskio.tag_num) { 12246 found = 1; 12247 break; 12248 } 12249 } 12250 mtx_unlock(&lun->lun_lock); 12251 if (found) 12252 io->taskio.task_status = CTL_TASK_FUNCTION_SUCCEEDED; 12253 else 12254 io->taskio.task_status = CTL_TASK_FUNCTION_COMPLETE; 12255 return (0); 12256} 12257 12258static int 12259ctl_query_async_event(union ctl_io *io) 12260{ 12261 struct ctl_lun *lun; 12262 struct ctl_softc *softc; 12263 ctl_ua_type ua; 12264 uint32_t targ_lun, initidx; 12265 12266 softc = control_softc; 12267 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12268 mtx_lock(&softc->ctl_lock); 12269 if (targ_lun >= CTL_MAX_LUNS || 12270 (lun = softc->ctl_luns[targ_lun]) == NULL) { 12271 mtx_unlock(&softc->ctl_lock); 12272 io->taskio.task_status = CTL_TASK_LUN_DOES_NOT_EXIST; 12273 return (1); 12274 } 12275 mtx_lock(&lun->lun_lock); 12276 mtx_unlock(&softc->ctl_lock); 12277 initidx = ctl_get_initindex(&io->io_hdr.nexus); 12278 ua = ctl_build_qae(lun, initidx, io->taskio.task_resp); 12279 mtx_unlock(&lun->lun_lock); 12280 if (ua != CTL_UA_NONE) 12281 io->taskio.task_status = CTL_TASK_FUNCTION_SUCCEEDED; 12282 else 12283 io->taskio.task_status = CTL_TASK_FUNCTION_COMPLETE; 12284 return (0); 12285} 12286 12287static void 12288ctl_run_task(union ctl_io *io) 12289{ 12290 struct ctl_softc *softc = control_softc; 12291 int retval = 1; 12292 12293 CTL_DEBUG_PRINT(("ctl_run_task\n")); 12294 KASSERT(io->io_hdr.io_type == CTL_IO_TASK, 12295 ("ctl_run_task: Unextected io_type %d\n", io->io_hdr.io_type)); 12296 io->taskio.task_status = CTL_TASK_FUNCTION_NOT_SUPPORTED; 12297 bzero(io->taskio.task_resp, sizeof(io->taskio.task_resp)); 12298 switch (io->taskio.task_action) { 12299 case CTL_TASK_ABORT_TASK: 12300 retval = ctl_abort_task(io); 12301 break; 12302 case CTL_TASK_ABORT_TASK_SET: 12303 case CTL_TASK_CLEAR_TASK_SET: 12304 retval = ctl_abort_task_set(io); 12305 break; 12306 case CTL_TASK_CLEAR_ACA: 12307 break; 12308 case CTL_TASK_I_T_NEXUS_RESET: 12309 retval = ctl_i_t_nexus_reset(io); 12310 break; 12311 case CTL_TASK_LUN_RESET: 12312 retval = ctl_lun_reset(softc, io); 12313 break; 12314 case CTL_TASK_TARGET_RESET: 12315 retval = ctl_target_reset(softc, io, CTL_UA_TARG_RESET); 12316 break; 12317 case CTL_TASK_BUS_RESET: 12318 retval = ctl_bus_reset(softc, io); 12319 break; 12320 case CTL_TASK_PORT_LOGIN: 12321 break; 12322 case CTL_TASK_PORT_LOGOUT: 12323 break; 12324 case CTL_TASK_QUERY_TASK: 12325 retval = ctl_query_task(io, 0); 12326 break; 12327 case CTL_TASK_QUERY_TASK_SET: 12328 retval = ctl_query_task(io, 1); 12329 break; 12330 case CTL_TASK_QUERY_ASYNC_EVENT: 12331 retval = ctl_query_async_event(io); 12332 break; 12333 default: 12334 printf("%s: got unknown task management event %d\n", 12335 __func__, io->taskio.task_action); 12336 break; 12337 } 12338 if (retval == 0) 12339 io->io_hdr.status = CTL_SUCCESS; 12340 else 12341 io->io_hdr.status = CTL_ERROR; 12342 ctl_done(io); 12343} 12344 12345/* 12346 * For HA operation. Handle commands that come in from the other 12347 * controller. 12348 */ 12349static void 12350ctl_handle_isc(union ctl_io *io) 12351{ 12352 struct ctl_softc *softc = control_softc; 12353 struct ctl_lun *lun; 12354 const struct ctl_cmd_entry *entry; 12355 uint32_t targ_lun; 12356 12357 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12358 switch (io->io_hdr.msg_type) { 12359 case CTL_MSG_SERIALIZE: 12360 ctl_serialize_other_sc_cmd(&io->scsiio); 12361 break; 12362 case CTL_MSG_R2R: /* Only used in SER_ONLY mode. */ 12363 entry = ctl_get_cmd_entry(&io->scsiio, NULL); 12364 if (targ_lun >= CTL_MAX_LUNS || 12365 (lun = softc->ctl_luns[targ_lun]) == NULL) { 12366 ctl_done(io); 12367 break; 12368 } 12369 mtx_lock(&lun->lun_lock); 12370 if (ctl_scsiio_lun_check(lun, entry, &io->scsiio) != 0) { 12371 mtx_unlock(&lun->lun_lock); 12372 ctl_done(io); 12373 break; 12374 } 12375 io->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 12376 mtx_unlock(&lun->lun_lock); 12377 ctl_enqueue_rtr(io); 12378 break; 12379 case CTL_MSG_FINISH_IO: 12380 if (softc->ha_mode == CTL_HA_MODE_XFER) { 12381 ctl_done(io); 12382 break; 12383 } 12384 if (targ_lun >= CTL_MAX_LUNS || 12385 (lun = softc->ctl_luns[targ_lun]) == NULL) { 12386 ctl_free_io(io); 12387 break; 12388 } 12389 mtx_lock(&lun->lun_lock); 12390 TAILQ_REMOVE(&lun->ooa_queue, &io->io_hdr, ooa_links); 12391 ctl_check_blocked(lun); 12392 mtx_unlock(&lun->lun_lock); 12393 ctl_free_io(io); 12394 break; 12395 case CTL_MSG_PERS_ACTION: 12396 ctl_hndl_per_res_out_on_other_sc( 12397 (union ctl_ha_msg *)&io->presio.pr_msg); 12398 ctl_free_io(io); 12399 break; 12400 case CTL_MSG_BAD_JUJU: 12401 ctl_done(io); 12402 break; 12403 case CTL_MSG_DATAMOVE: /* Only used in XFER mode */ 12404 ctl_datamove_remote(io); 12405 break; 12406 case CTL_MSG_DATAMOVE_DONE: /* Only used in XFER mode */ 12407 io->scsiio.be_move_done(io); 12408 break; 12409 case CTL_MSG_FAILOVER: 12410 ctl_failover_lun(io); 12411 ctl_free_io(io); 12412 break; 12413 default: 12414 printf("%s: Invalid message type %d\n", 12415 __func__, io->io_hdr.msg_type); 12416 ctl_free_io(io); 12417 break; 12418 } 12419 12420} 12421 12422 12423/* 12424 * Returns the match type in the case of a match, or CTL_LUN_PAT_NONE if 12425 * there is no match. 12426 */ 12427static ctl_lun_error_pattern 12428ctl_cmd_pattern_match(struct ctl_scsiio *ctsio, struct ctl_error_desc *desc) 12429{ 12430 const struct ctl_cmd_entry *entry; 12431 ctl_lun_error_pattern filtered_pattern, pattern; 12432 12433 pattern = desc->error_pattern; 12434 12435 /* 12436 * XXX KDM we need more data passed into this function to match a 12437 * custom pattern, and we actually need to implement custom pattern 12438 * matching. 12439 */ 12440 if (pattern & CTL_LUN_PAT_CMD) 12441 return (CTL_LUN_PAT_CMD); 12442 12443 if ((pattern & CTL_LUN_PAT_MASK) == CTL_LUN_PAT_ANY) 12444 return (CTL_LUN_PAT_ANY); 12445 12446 entry = ctl_get_cmd_entry(ctsio, NULL); 12447 12448 filtered_pattern = entry->pattern & pattern; 12449 12450 /* 12451 * If the user requested specific flags in the pattern (e.g. 12452 * CTL_LUN_PAT_RANGE), make sure the command supports all of those 12453 * flags. 12454 * 12455 * If the user did not specify any flags, it doesn't matter whether 12456 * or not the command supports the flags. 12457 */ 12458 if ((filtered_pattern & ~CTL_LUN_PAT_MASK) != 12459 (pattern & ~CTL_LUN_PAT_MASK)) 12460 return (CTL_LUN_PAT_NONE); 12461 12462 /* 12463 * If the user asked for a range check, see if the requested LBA 12464 * range overlaps with this command's LBA range. 12465 */ 12466 if (filtered_pattern & CTL_LUN_PAT_RANGE) { 12467 uint64_t lba1; 12468 uint64_t len1; 12469 ctl_action action; 12470 int retval; 12471 12472 retval = ctl_get_lba_len((union ctl_io *)ctsio, &lba1, &len1); 12473 if (retval != 0) 12474 return (CTL_LUN_PAT_NONE); 12475 12476 action = ctl_extent_check_lba(lba1, len1, desc->lba_range.lba, 12477 desc->lba_range.len, FALSE); 12478 /* 12479 * A "pass" means that the LBA ranges don't overlap, so 12480 * this doesn't match the user's range criteria. 12481 */ 12482 if (action == CTL_ACTION_PASS) 12483 return (CTL_LUN_PAT_NONE); 12484 } 12485 12486 return (filtered_pattern); 12487} 12488 12489static void 12490ctl_inject_error(struct ctl_lun *lun, union ctl_io *io) 12491{ 12492 struct ctl_error_desc *desc, *desc2; 12493 12494 mtx_assert(&lun->lun_lock, MA_OWNED); 12495 12496 STAILQ_FOREACH_SAFE(desc, &lun->error_list, links, desc2) { 12497 ctl_lun_error_pattern pattern; 12498 /* 12499 * Check to see whether this particular command matches 12500 * the pattern in the descriptor. 12501 */ 12502 pattern = ctl_cmd_pattern_match(&io->scsiio, desc); 12503 if ((pattern & CTL_LUN_PAT_MASK) == CTL_LUN_PAT_NONE) 12504 continue; 12505 12506 switch (desc->lun_error & CTL_LUN_INJ_TYPE) { 12507 case CTL_LUN_INJ_ABORTED: 12508 ctl_set_aborted(&io->scsiio); 12509 break; 12510 case CTL_LUN_INJ_MEDIUM_ERR: 12511 ctl_set_medium_error(&io->scsiio, 12512 (io->io_hdr.flags & CTL_FLAG_DATA_MASK) != 12513 CTL_FLAG_DATA_OUT); 12514 break; 12515 case CTL_LUN_INJ_UA: 12516 /* 29h/00h POWER ON, RESET, OR BUS DEVICE RESET 12517 * OCCURRED */ 12518 ctl_set_ua(&io->scsiio, 0x29, 0x00); 12519 break; 12520 case CTL_LUN_INJ_CUSTOM: 12521 /* 12522 * We're assuming the user knows what he is doing. 12523 * Just copy the sense information without doing 12524 * checks. 12525 */ 12526 bcopy(&desc->custom_sense, &io->scsiio.sense_data, 12527 MIN(sizeof(desc->custom_sense), 12528 sizeof(io->scsiio.sense_data))); 12529 io->scsiio.scsi_status = SCSI_STATUS_CHECK_COND; 12530 io->scsiio.sense_len = SSD_FULL_SIZE; 12531 io->io_hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 12532 break; 12533 case CTL_LUN_INJ_NONE: 12534 default: 12535 /* 12536 * If this is an error injection type we don't know 12537 * about, clear the continuous flag (if it is set) 12538 * so it will get deleted below. 12539 */ 12540 desc->lun_error &= ~CTL_LUN_INJ_CONTINUOUS; 12541 break; 12542 } 12543 /* 12544 * By default, each error injection action is a one-shot 12545 */ 12546 if (desc->lun_error & CTL_LUN_INJ_CONTINUOUS) 12547 continue; 12548 12549 STAILQ_REMOVE(&lun->error_list, desc, ctl_error_desc, links); 12550 12551 free(desc, M_CTL); 12552 } 12553} 12554 12555#ifdef CTL_IO_DELAY 12556static void 12557ctl_datamove_timer_wakeup(void *arg) 12558{ 12559 union ctl_io *io; 12560 12561 io = (union ctl_io *)arg; 12562 12563 ctl_datamove(io); 12564} 12565#endif /* CTL_IO_DELAY */ 12566 12567void 12568ctl_datamove(union ctl_io *io) 12569{ 12570 struct ctl_lun *lun; 12571 void (*fe_datamove)(union ctl_io *io); 12572 12573 mtx_assert(&control_softc->ctl_lock, MA_NOTOWNED); 12574 12575 CTL_DEBUG_PRINT(("ctl_datamove\n")); 12576 12577 lun = (struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 12578#ifdef CTL_TIME_IO 12579 if ((time_uptime - io->io_hdr.start_time) > ctl_time_io_secs) { 12580 char str[256]; 12581 char path_str[64]; 12582 struct sbuf sb; 12583 12584 ctl_scsi_path_string(io, path_str, sizeof(path_str)); 12585 sbuf_new(&sb, str, sizeof(str), SBUF_FIXEDLEN); 12586 12587 sbuf_cat(&sb, path_str); 12588 switch (io->io_hdr.io_type) { 12589 case CTL_IO_SCSI: 12590 ctl_scsi_command_string(&io->scsiio, NULL, &sb); 12591 sbuf_printf(&sb, "\n"); 12592 sbuf_cat(&sb, path_str); 12593 sbuf_printf(&sb, "Tag: 0x%04x, type %d\n", 12594 io->scsiio.tag_num, io->scsiio.tag_type); 12595 break; 12596 case CTL_IO_TASK: 12597 sbuf_printf(&sb, "Task I/O type: %d, Tag: 0x%04x, " 12598 "Tag Type: %d\n", io->taskio.task_action, 12599 io->taskio.tag_num, io->taskio.tag_type); 12600 break; 12601 default: 12602 panic("%s: Invalid CTL I/O type %d\n", 12603 __func__, io->io_hdr.io_type); 12604 } 12605 sbuf_cat(&sb, path_str); 12606 sbuf_printf(&sb, "ctl_datamove: %jd seconds\n", 12607 (intmax_t)time_uptime - io->io_hdr.start_time); 12608 sbuf_finish(&sb); 12609 printf("%s", sbuf_data(&sb)); 12610 } 12611#endif /* CTL_TIME_IO */ 12612 12613#ifdef CTL_IO_DELAY 12614 if (io->io_hdr.flags & CTL_FLAG_DELAY_DONE) { 12615 io->io_hdr.flags &= ~CTL_FLAG_DELAY_DONE; 12616 } else { 12617 if ((lun != NULL) 12618 && (lun->delay_info.datamove_delay > 0)) { 12619 12620 callout_init(&io->io_hdr.delay_callout, /*mpsafe*/ 1); 12621 io->io_hdr.flags |= CTL_FLAG_DELAY_DONE; 12622 callout_reset(&io->io_hdr.delay_callout, 12623 lun->delay_info.datamove_delay * hz, 12624 ctl_datamove_timer_wakeup, io); 12625 if (lun->delay_info.datamove_type == 12626 CTL_DELAY_TYPE_ONESHOT) 12627 lun->delay_info.datamove_delay = 0; 12628 return; 12629 } 12630 } 12631#endif 12632 12633 /* 12634 * This command has been aborted. Set the port status, so we fail 12635 * the data move. 12636 */ 12637 if (io->io_hdr.flags & CTL_FLAG_ABORT) { 12638 printf("ctl_datamove: tag 0x%04x on (%u:%u:%u) aborted\n", 12639 io->scsiio.tag_num, io->io_hdr.nexus.initid, 12640 io->io_hdr.nexus.targ_port, 12641 io->io_hdr.nexus.targ_lun); 12642 io->io_hdr.port_status = 31337; 12643 /* 12644 * Note that the backend, in this case, will get the 12645 * callback in its context. In other cases it may get 12646 * called in the frontend's interrupt thread context. 12647 */ 12648 io->scsiio.be_move_done(io); 12649 return; 12650 } 12651 12652 /* Don't confuse frontend with zero length data move. */ 12653 if (io->scsiio.kern_data_len == 0) { 12654 io->scsiio.be_move_done(io); 12655 return; 12656 } 12657 12658 fe_datamove = ctl_io_port(&io->io_hdr)->fe_datamove; 12659 fe_datamove(io); 12660} 12661 12662static void 12663ctl_send_datamove_done(union ctl_io *io, int have_lock) 12664{ 12665 union ctl_ha_msg msg; 12666#ifdef CTL_TIME_IO 12667 struct bintime cur_bt; 12668#endif 12669 12670 memset(&msg, 0, sizeof(msg)); 12671 msg.hdr.msg_type = CTL_MSG_DATAMOVE_DONE; 12672 msg.hdr.original_sc = io; 12673 msg.hdr.serializing_sc = io->io_hdr.serializing_sc; 12674 msg.hdr.nexus = io->io_hdr.nexus; 12675 msg.hdr.status = io->io_hdr.status; 12676 msg.scsi.tag_num = io->scsiio.tag_num; 12677 msg.scsi.tag_type = io->scsiio.tag_type; 12678 msg.scsi.scsi_status = io->scsiio.scsi_status; 12679 memcpy(&msg.scsi.sense_data, &io->scsiio.sense_data, 12680 io->scsiio.sense_len); 12681 msg.scsi.sense_len = io->scsiio.sense_len; 12682 msg.scsi.sense_residual = io->scsiio.sense_residual; 12683 msg.scsi.fetd_status = io->io_hdr.port_status; 12684 msg.scsi.residual = io->scsiio.residual; 12685 io->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 12686 if (io->io_hdr.flags & CTL_FLAG_FAILOVER) { 12687 ctl_failover_io(io, /*have_lock*/ have_lock); 12688 return; 12689 } 12690 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, 12691 sizeof(msg.scsi) - sizeof(msg.scsi.sense_data) + 12692 msg.scsi.sense_len, M_WAITOK); 12693 12694#ifdef CTL_TIME_IO 12695 getbinuptime(&cur_bt); 12696 bintime_sub(&cur_bt, &io->io_hdr.dma_start_bt); 12697 bintime_add(&io->io_hdr.dma_bt, &cur_bt); 12698#endif 12699 io->io_hdr.num_dmas++; 12700} 12701 12702/* 12703 * The DMA to the remote side is done, now we need to tell the other side 12704 * we're done so it can continue with its data movement. 12705 */ 12706static void 12707ctl_datamove_remote_write_cb(struct ctl_ha_dt_req *rq) 12708{ 12709 union ctl_io *io; 12710 uint32_t i; 12711 12712 io = rq->context; 12713 12714 if (rq->ret != CTL_HA_STATUS_SUCCESS) { 12715 printf("%s: ISC DMA write failed with error %d", __func__, 12716 rq->ret); 12717 ctl_set_internal_failure(&io->scsiio, 12718 /*sks_valid*/ 1, 12719 /*retry_count*/ rq->ret); 12720 } 12721 12722 ctl_dt_req_free(rq); 12723 12724 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 12725 free(io->io_hdr.local_sglist[i].addr, M_CTL); 12726 free(io->io_hdr.remote_sglist, M_CTL); 12727 io->io_hdr.remote_sglist = NULL; 12728 io->io_hdr.local_sglist = NULL; 12729 12730 /* 12731 * The data is in local and remote memory, so now we need to send 12732 * status (good or back) back to the other side. 12733 */ 12734 ctl_send_datamove_done(io, /*have_lock*/ 0); 12735} 12736 12737/* 12738 * We've moved the data from the host/controller into local memory. Now we 12739 * need to push it over to the remote controller's memory. 12740 */ 12741static int 12742ctl_datamove_remote_dm_write_cb(union ctl_io *io) 12743{ 12744 int retval; 12745 12746 retval = ctl_datamove_remote_xfer(io, CTL_HA_DT_CMD_WRITE, 12747 ctl_datamove_remote_write_cb); 12748 return (retval); 12749} 12750 12751static void 12752ctl_datamove_remote_write(union ctl_io *io) 12753{ 12754 int retval; 12755 void (*fe_datamove)(union ctl_io *io); 12756 12757 /* 12758 * - Get the data from the host/HBA into local memory. 12759 * - DMA memory from the local controller to the remote controller. 12760 * - Send status back to the remote controller. 12761 */ 12762 12763 retval = ctl_datamove_remote_sgl_setup(io); 12764 if (retval != 0) 12765 return; 12766 12767 /* Switch the pointer over so the FETD knows what to do */ 12768 io->scsiio.kern_data_ptr = (uint8_t *)io->io_hdr.local_sglist; 12769 12770 /* 12771 * Use a custom move done callback, since we need to send completion 12772 * back to the other controller, not to the backend on this side. 12773 */ 12774 io->scsiio.be_move_done = ctl_datamove_remote_dm_write_cb; 12775 12776 fe_datamove = ctl_io_port(&io->io_hdr)->fe_datamove; 12777 fe_datamove(io); 12778} 12779 12780static int 12781ctl_datamove_remote_dm_read_cb(union ctl_io *io) 12782{ 12783#if 0 12784 char str[256]; 12785 char path_str[64]; 12786 struct sbuf sb; 12787#endif 12788 uint32_t i; 12789 12790 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 12791 free(io->io_hdr.local_sglist[i].addr, M_CTL); 12792 free(io->io_hdr.remote_sglist, M_CTL); 12793 io->io_hdr.remote_sglist = NULL; 12794 io->io_hdr.local_sglist = NULL; 12795 12796#if 0 12797 scsi_path_string(io, path_str, sizeof(path_str)); 12798 sbuf_new(&sb, str, sizeof(str), SBUF_FIXEDLEN); 12799 sbuf_cat(&sb, path_str); 12800 scsi_command_string(&io->scsiio, NULL, &sb); 12801 sbuf_printf(&sb, "\n"); 12802 sbuf_cat(&sb, path_str); 12803 sbuf_printf(&sb, "Tag: 0x%04x, type %d\n", 12804 io->scsiio.tag_num, io->scsiio.tag_type); 12805 sbuf_cat(&sb, path_str); 12806 sbuf_printf(&sb, "%s: flags %#x, status %#x\n", __func__, 12807 io->io_hdr.flags, io->io_hdr.status); 12808 sbuf_finish(&sb); 12809 printk("%s", sbuf_data(&sb)); 12810#endif 12811 12812 12813 /* 12814 * The read is done, now we need to send status (good or bad) back 12815 * to the other side. 12816 */ 12817 ctl_send_datamove_done(io, /*have_lock*/ 0); 12818 12819 return (0); 12820} 12821 12822static void 12823ctl_datamove_remote_read_cb(struct ctl_ha_dt_req *rq) 12824{ 12825 union ctl_io *io; 12826 void (*fe_datamove)(union ctl_io *io); 12827 12828 io = rq->context; 12829 12830 if (rq->ret != CTL_HA_STATUS_SUCCESS) { 12831 printf("%s: ISC DMA read failed with error %d\n", __func__, 12832 rq->ret); 12833 ctl_set_internal_failure(&io->scsiio, 12834 /*sks_valid*/ 1, 12835 /*retry_count*/ rq->ret); 12836 } 12837 12838 ctl_dt_req_free(rq); 12839 12840 /* Switch the pointer over so the FETD knows what to do */ 12841 io->scsiio.kern_data_ptr = (uint8_t *)io->io_hdr.local_sglist; 12842 12843 /* 12844 * Use a custom move done callback, since we need to send completion 12845 * back to the other controller, not to the backend on this side. 12846 */ 12847 io->scsiio.be_move_done = ctl_datamove_remote_dm_read_cb; 12848 12849 /* XXX KDM add checks like the ones in ctl_datamove? */ 12850 12851 fe_datamove = ctl_io_port(&io->io_hdr)->fe_datamove; 12852 fe_datamove(io); 12853} 12854 12855static int 12856ctl_datamove_remote_sgl_setup(union ctl_io *io) 12857{ 12858 struct ctl_sg_entry *local_sglist; 12859 uint32_t len_to_go; 12860 int retval; 12861 int i; 12862 12863 retval = 0; 12864 local_sglist = io->io_hdr.local_sglist; 12865 len_to_go = io->scsiio.kern_data_len; 12866 12867 /* 12868 * The difficult thing here is that the size of the various 12869 * S/G segments may be different than the size from the 12870 * remote controller. That'll make it harder when DMAing 12871 * the data back to the other side. 12872 */ 12873 for (i = 0; len_to_go > 0; i++) { 12874 local_sglist[i].len = MIN(len_to_go, CTL_HA_DATAMOVE_SEGMENT); 12875 local_sglist[i].addr = 12876 malloc(local_sglist[i].len, M_CTL, M_WAITOK); 12877 12878 len_to_go -= local_sglist[i].len; 12879 } 12880 /* 12881 * Reset the number of S/G entries accordingly. The original 12882 * number of S/G entries is available in rem_sg_entries. 12883 */ 12884 io->scsiio.kern_sg_entries = i; 12885 12886#if 0 12887 printf("%s: kern_sg_entries = %d\n", __func__, 12888 io->scsiio.kern_sg_entries); 12889 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 12890 printf("%s: sg[%d] = %p, %lu\n", __func__, i, 12891 local_sglist[i].addr, local_sglist[i].len); 12892#endif 12893 12894 return (retval); 12895} 12896 12897static int 12898ctl_datamove_remote_xfer(union ctl_io *io, unsigned command, 12899 ctl_ha_dt_cb callback) 12900{ 12901 struct ctl_ha_dt_req *rq; 12902 struct ctl_sg_entry *remote_sglist, *local_sglist; 12903 uint32_t local_used, remote_used, total_used; 12904 int i, j, isc_ret; 12905 12906 rq = ctl_dt_req_alloc(); 12907 12908 /* 12909 * If we failed to allocate the request, and if the DMA didn't fail 12910 * anyway, set busy status. This is just a resource allocation 12911 * failure. 12912 */ 12913 if ((rq == NULL) 12914 && ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE && 12915 (io->io_hdr.status & CTL_STATUS_MASK) != CTL_SUCCESS)) 12916 ctl_set_busy(&io->scsiio); 12917 12918 if ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE && 12919 (io->io_hdr.status & CTL_STATUS_MASK) != CTL_SUCCESS) { 12920 12921 if (rq != NULL) 12922 ctl_dt_req_free(rq); 12923 12924 /* 12925 * The data move failed. We need to return status back 12926 * to the other controller. No point in trying to DMA 12927 * data to the remote controller. 12928 */ 12929 12930 ctl_send_datamove_done(io, /*have_lock*/ 0); 12931 12932 return (1); 12933 } 12934 12935 local_sglist = io->io_hdr.local_sglist; 12936 remote_sglist = io->io_hdr.remote_sglist; 12937 local_used = 0; 12938 remote_used = 0; 12939 total_used = 0; 12940 12941 /* 12942 * Pull/push the data over the wire from/to the other controller. 12943 * This takes into account the possibility that the local and 12944 * remote sglists may not be identical in terms of the size of 12945 * the elements and the number of elements. 12946 * 12947 * One fundamental assumption here is that the length allocated for 12948 * both the local and remote sglists is identical. Otherwise, we've 12949 * essentially got a coding error of some sort. 12950 */ 12951 isc_ret = CTL_HA_STATUS_SUCCESS; 12952 for (i = 0, j = 0; total_used < io->scsiio.kern_data_len; ) { 12953 uint32_t cur_len; 12954 uint8_t *tmp_ptr; 12955 12956 rq->command = command; 12957 rq->context = io; 12958 12959 /* 12960 * Both pointers should be aligned. But it is possible 12961 * that the allocation length is not. They should both 12962 * also have enough slack left over at the end, though, 12963 * to round up to the next 8 byte boundary. 12964 */ 12965 cur_len = MIN(local_sglist[i].len - local_used, 12966 remote_sglist[j].len - remote_used); 12967 rq->size = cur_len; 12968 12969 tmp_ptr = (uint8_t *)local_sglist[i].addr; 12970 tmp_ptr += local_used; 12971 12972#if 0 12973 /* Use physical addresses when talking to ISC hardware */ 12974 if ((io->io_hdr.flags & CTL_FLAG_BUS_ADDR) == 0) { 12975 /* XXX KDM use busdma */ 12976 rq->local = vtophys(tmp_ptr); 12977 } else 12978 rq->local = tmp_ptr; 12979#else 12980 KASSERT((io->io_hdr.flags & CTL_FLAG_BUS_ADDR) == 0, 12981 ("HA does not support BUS_ADDR")); 12982 rq->local = tmp_ptr; 12983#endif 12984 12985 tmp_ptr = (uint8_t *)remote_sglist[j].addr; 12986 tmp_ptr += remote_used; 12987 rq->remote = tmp_ptr; 12988 12989 rq->callback = NULL; 12990 12991 local_used += cur_len; 12992 if (local_used >= local_sglist[i].len) { 12993 i++; 12994 local_used = 0; 12995 } 12996 12997 remote_used += cur_len; 12998 if (remote_used >= remote_sglist[j].len) { 12999 j++; 13000 remote_used = 0; 13001 } 13002 total_used += cur_len; 13003 13004 if (total_used >= io->scsiio.kern_data_len) 13005 rq->callback = callback; 13006 13007#if 0 13008 printf("%s: %s: local %p remote %p size %d\n", __func__, 13009 (command == CTL_HA_DT_CMD_WRITE) ? "WRITE" : "READ", 13010 rq->local, rq->remote, rq->size); 13011#endif 13012 13013 isc_ret = ctl_dt_single(rq); 13014 if (isc_ret > CTL_HA_STATUS_SUCCESS) 13015 break; 13016 } 13017 if (isc_ret != CTL_HA_STATUS_WAIT) { 13018 rq->ret = isc_ret; 13019 callback(rq); 13020 } 13021 13022 return (0); 13023} 13024 13025static void 13026ctl_datamove_remote_read(union ctl_io *io) 13027{ 13028 int retval; 13029 uint32_t i; 13030 13031 /* 13032 * This will send an error to the other controller in the case of a 13033 * failure. 13034 */ 13035 retval = ctl_datamove_remote_sgl_setup(io); 13036 if (retval != 0) 13037 return; 13038 13039 retval = ctl_datamove_remote_xfer(io, CTL_HA_DT_CMD_READ, 13040 ctl_datamove_remote_read_cb); 13041 if (retval != 0) { 13042 /* 13043 * Make sure we free memory if there was an error.. The 13044 * ctl_datamove_remote_xfer() function will send the 13045 * datamove done message, or call the callback with an 13046 * error if there is a problem. 13047 */ 13048 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 13049 free(io->io_hdr.local_sglist[i].addr, M_CTL); 13050 free(io->io_hdr.remote_sglist, M_CTL); 13051 io->io_hdr.remote_sglist = NULL; 13052 io->io_hdr.local_sglist = NULL; 13053 } 13054} 13055 13056/* 13057 * Process a datamove request from the other controller. This is used for 13058 * XFER mode only, not SER_ONLY mode. For writes, we DMA into local memory 13059 * first. Once that is complete, the data gets DMAed into the remote 13060 * controller's memory. For reads, we DMA from the remote controller's 13061 * memory into our memory first, and then move it out to the FETD. 13062 */ 13063static void 13064ctl_datamove_remote(union ctl_io *io) 13065{ 13066 13067 mtx_assert(&control_softc->ctl_lock, MA_NOTOWNED); 13068 13069 if (io->io_hdr.flags & CTL_FLAG_FAILOVER) { 13070 ctl_failover_io(io, /*have_lock*/ 0); 13071 return; 13072 } 13073 13074 /* 13075 * Note that we look for an aborted I/O here, but don't do some of 13076 * the other checks that ctl_datamove() normally does. 13077 * We don't need to run the datamove delay code, since that should 13078 * have been done if need be on the other controller. 13079 */ 13080 if (io->io_hdr.flags & CTL_FLAG_ABORT) { 13081 printf("%s: tag 0x%04x on (%u:%u:%u) aborted\n", __func__, 13082 io->scsiio.tag_num, io->io_hdr.nexus.initid, 13083 io->io_hdr.nexus.targ_port, 13084 io->io_hdr.nexus.targ_lun); 13085 io->io_hdr.port_status = 31338; 13086 ctl_send_datamove_done(io, /*have_lock*/ 0); 13087 return; 13088 } 13089 13090 if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_OUT) 13091 ctl_datamove_remote_write(io); 13092 else if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_IN) 13093 ctl_datamove_remote_read(io); 13094 else { 13095 io->io_hdr.port_status = 31339; 13096 ctl_send_datamove_done(io, /*have_lock*/ 0); 13097 } 13098} 13099 13100static void 13101ctl_process_done(union ctl_io *io) 13102{ 13103 struct ctl_lun *lun; 13104 struct ctl_softc *softc = control_softc; 13105 void (*fe_done)(union ctl_io *io); 13106 union ctl_ha_msg msg; 13107 uint32_t targ_port = io->io_hdr.nexus.targ_port; 13108 13109 CTL_DEBUG_PRINT(("ctl_process_done\n")); 13110 fe_done = softc->ctl_ports[targ_port]->fe_done; 13111 13112#ifdef CTL_TIME_IO 13113 if ((time_uptime - io->io_hdr.start_time) > ctl_time_io_secs) { 13114 char str[256]; 13115 char path_str[64]; 13116 struct sbuf sb; 13117 13118 ctl_scsi_path_string(io, path_str, sizeof(path_str)); 13119 sbuf_new(&sb, str, sizeof(str), SBUF_FIXEDLEN); 13120 13121 sbuf_cat(&sb, path_str); 13122 switch (io->io_hdr.io_type) { 13123 case CTL_IO_SCSI: 13124 ctl_scsi_command_string(&io->scsiio, NULL, &sb); 13125 sbuf_printf(&sb, "\n"); 13126 sbuf_cat(&sb, path_str); 13127 sbuf_printf(&sb, "Tag: 0x%04x, type %d\n", 13128 io->scsiio.tag_num, io->scsiio.tag_type); 13129 break; 13130 case CTL_IO_TASK: 13131 sbuf_printf(&sb, "Task I/O type: %d, Tag: 0x%04x, " 13132 "Tag Type: %d\n", io->taskio.task_action, 13133 io->taskio.tag_num, io->taskio.tag_type); 13134 break; 13135 default: 13136 panic("%s: Invalid CTL I/O type %d\n", 13137 __func__, io->io_hdr.io_type); 13138 } 13139 sbuf_cat(&sb, path_str); 13140 sbuf_printf(&sb, "ctl_process_done: %jd seconds\n", 13141 (intmax_t)time_uptime - io->io_hdr.start_time); 13142 sbuf_finish(&sb); 13143 printf("%s", sbuf_data(&sb)); 13144 } 13145#endif /* CTL_TIME_IO */ 13146 13147 switch (io->io_hdr.io_type) { 13148 case CTL_IO_SCSI: 13149 break; 13150 case CTL_IO_TASK: 13151 if (ctl_debug & CTL_DEBUG_INFO) 13152 ctl_io_error_print(io, NULL); 13153 fe_done(io); 13154 return; 13155 default: 13156 panic("%s: Invalid CTL I/O type %d\n", 13157 __func__, io->io_hdr.io_type); 13158 } 13159 13160 lun = (struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 13161 if (lun == NULL) { 13162 CTL_DEBUG_PRINT(("NULL LUN for lun %d\n", 13163 io->io_hdr.nexus.targ_mapped_lun)); 13164 goto bailout; 13165 } 13166 13167 mtx_lock(&lun->lun_lock); 13168 13169 /* 13170 * Check to see if we have any informational exception and status 13171 * of this command can be modified to report it in form of either 13172 * RECOVERED ERROR or NO SENSE, depending on MRIE mode page field. 13173 */ 13174 if (lun->ie_reported == 0 && lun->ie_asc != 0 && 13175 io->io_hdr.status == CTL_SUCCESS && 13176 (io->io_hdr.flags & CTL_FLAG_STATUS_SENT) == 0) { 13177 uint8_t mrie = lun->MODE_IE.mrie; 13178 uint8_t per = ((lun->MODE_RWER.byte3 & SMS_RWER_PER) || 13179 (lun->MODE_VER.byte3 & SMS_VER_PER)); 13180 if (((mrie == SIEP_MRIE_REC_COND && per) || 13181 mrie == SIEP_MRIE_REC_UNCOND || 13182 mrie == SIEP_MRIE_NO_SENSE) && 13183 (ctl_get_cmd_entry(&io->scsiio, NULL)->flags & 13184 CTL_CMD_FLAG_NO_SENSE) == 0) { 13185 ctl_set_sense(&io->scsiio, 13186 /*current_error*/ 1, 13187 /*sense_key*/ (mrie == SIEP_MRIE_NO_SENSE) ? 13188 SSD_KEY_NO_SENSE : SSD_KEY_RECOVERED_ERROR, 13189 /*asc*/ lun->ie_asc, 13190 /*ascq*/ lun->ie_ascq, 13191 SSD_ELEM_NONE); 13192 lun->ie_reported = 1; 13193 } 13194 } else if (lun->ie_reported < 0) 13195 lun->ie_reported = 0; 13196 13197 /* 13198 * Check to see if we have any errors to inject here. We only 13199 * inject errors for commands that don't already have errors set. 13200 */ 13201 if (!STAILQ_EMPTY(&lun->error_list) && 13202 ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS) && 13203 ((io->io_hdr.flags & CTL_FLAG_STATUS_SENT) == 0)) 13204 ctl_inject_error(lun, io); 13205 13206 /* 13207 * XXX KDM how do we treat commands that aren't completed 13208 * successfully? 13209 * 13210 * XXX KDM should we also track I/O latency? 13211 */ 13212 if ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS && 13213 io->io_hdr.io_type == CTL_IO_SCSI) { 13214#ifdef CTL_TIME_IO 13215 struct bintime cur_bt; 13216#endif 13217 int type; 13218 13219 if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == 13220 CTL_FLAG_DATA_IN) 13221 type = CTL_STATS_READ; 13222 else if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == 13223 CTL_FLAG_DATA_OUT) 13224 type = CTL_STATS_WRITE; 13225 else 13226 type = CTL_STATS_NO_IO; 13227 13228 lun->stats.ports[targ_port].bytes[type] += 13229 io->scsiio.kern_total_len; 13230 lun->stats.ports[targ_port].operations[type]++; 13231#ifdef CTL_TIME_IO 13232 bintime_add(&lun->stats.ports[targ_port].dma_time[type], 13233 &io->io_hdr.dma_bt); 13234 getbinuptime(&cur_bt); 13235 bintime_sub(&cur_bt, &io->io_hdr.start_bt); 13236 bintime_add(&lun->stats.ports[targ_port].time[type], &cur_bt); 13237#endif 13238 lun->stats.ports[targ_port].num_dmas[type] += 13239 io->io_hdr.num_dmas; 13240 } 13241 13242 /* 13243 * Remove this from the OOA queue. 13244 */ 13245 TAILQ_REMOVE(&lun->ooa_queue, &io->io_hdr, ooa_links); 13246#ifdef CTL_TIME_IO 13247 if (TAILQ_EMPTY(&lun->ooa_queue)) 13248 lun->last_busy = getsbinuptime(); 13249#endif 13250 13251 /* 13252 * Run through the blocked queue on this LUN and see if anything 13253 * has become unblocked, now that this transaction is done. 13254 */ 13255 ctl_check_blocked(lun); 13256 13257 /* 13258 * If the LUN has been invalidated, free it if there is nothing 13259 * left on its OOA queue. 13260 */ 13261 if ((lun->flags & CTL_LUN_INVALID) 13262 && TAILQ_EMPTY(&lun->ooa_queue)) { 13263 mtx_unlock(&lun->lun_lock); 13264 mtx_lock(&softc->ctl_lock); 13265 ctl_free_lun(lun); 13266 mtx_unlock(&softc->ctl_lock); 13267 } else 13268 mtx_unlock(&lun->lun_lock); 13269 13270bailout: 13271 13272 /* 13273 * If this command has been aborted, make sure we set the status 13274 * properly. The FETD is responsible for freeing the I/O and doing 13275 * whatever it needs to do to clean up its state. 13276 */ 13277 if (io->io_hdr.flags & CTL_FLAG_ABORT) 13278 ctl_set_task_aborted(&io->scsiio); 13279 13280 /* 13281 * If enabled, print command error status. 13282 */ 13283 if ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_SUCCESS && 13284 (ctl_debug & CTL_DEBUG_INFO) != 0) 13285 ctl_io_error_print(io, NULL); 13286 13287 /* 13288 * Tell the FETD or the other shelf controller we're done with this 13289 * command. Note that only SCSI commands get to this point. Task 13290 * management commands are completed above. 13291 */ 13292 if ((softc->ha_mode != CTL_HA_MODE_XFER) && 13293 (io->io_hdr.flags & CTL_FLAG_SENT_2OTHER_SC)) { 13294 memset(&msg, 0, sizeof(msg)); 13295 msg.hdr.msg_type = CTL_MSG_FINISH_IO; 13296 msg.hdr.serializing_sc = io->io_hdr.serializing_sc; 13297 msg.hdr.nexus = io->io_hdr.nexus; 13298 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, 13299 sizeof(msg.scsi) - sizeof(msg.scsi.sense_data), 13300 M_WAITOK); 13301 } 13302 13303 fe_done(io); 13304} 13305 13306#ifdef CTL_WITH_CA 13307/* 13308 * Front end should call this if it doesn't do autosense. When the request 13309 * sense comes back in from the initiator, we'll dequeue this and send it. 13310 */ 13311int 13312ctl_queue_sense(union ctl_io *io) 13313{ 13314 struct ctl_lun *lun; 13315 struct ctl_port *port; 13316 struct ctl_softc *softc; 13317 uint32_t initidx, targ_lun; 13318 13319 CTL_DEBUG_PRINT(("ctl_queue_sense\n")); 13320 13321 softc = control_softc; 13322 port = ctl_io_port(&ctsio->io_hdr); 13323 targ_lun = ctl_lun_map_from_port(port, io->io_hdr.nexus.targ_lun); 13324 13325 /* 13326 * LUN lookup will likely move to the ctl_work_thread() once we 13327 * have our new queueing infrastructure (that doesn't put things on 13328 * a per-LUN queue initially). That is so that we can handle 13329 * things like an INQUIRY to a LUN that we don't have enabled. We 13330 * can't deal with that right now. 13331 * If we don't have a LUN for this, just toss the sense information. 13332 */ 13333 mtx_lock(&softc->ctl_lock); 13334 if (targ_lun >= CTL_MAX_LUNS || 13335 (lun = softc->ctl_luns[targ_lun]) == NULL) { 13336 mtx_unlock(&softc->ctl_lock); 13337 goto bailout; 13338 } 13339 mtx_lock(&lun->lun_lock); 13340 mtx_unlock(&softc->ctl_lock); 13341 13342 /* 13343 * Already have CA set for this LUN...toss the sense information. 13344 */ 13345 initidx = ctl_get_initindex(&io->io_hdr.nexus); 13346 if (ctl_is_set(lun->have_ca, initidx)) { 13347 mtx_unlock(&lun->lun_lock); 13348 goto bailout; 13349 } 13350 13351 memcpy(&lun->pending_sense[initidx], &io->scsiio.sense_data, 13352 MIN(sizeof(lun->pending_sense[initidx]), 13353 sizeof(io->scsiio.sense_data))); 13354 ctl_set_mask(lun->have_ca, initidx); 13355 mtx_unlock(&lun->lun_lock); 13356 13357bailout: 13358 ctl_free_io(io); 13359 return (CTL_RETVAL_COMPLETE); 13360} 13361#endif 13362 13363/* 13364 * Primary command inlet from frontend ports. All SCSI and task I/O 13365 * requests must go through this function. 13366 */ 13367int 13368ctl_queue(union ctl_io *io) 13369{ 13370 struct ctl_port *port; 13371 13372 CTL_DEBUG_PRINT(("ctl_queue cdb[0]=%02X\n", io->scsiio.cdb[0])); 13373 13374#ifdef CTL_TIME_IO 13375 io->io_hdr.start_time = time_uptime; 13376 getbinuptime(&io->io_hdr.start_bt); 13377#endif /* CTL_TIME_IO */ 13378 13379 /* Map FE-specific LUN ID into global one. */ 13380 port = ctl_io_port(&io->io_hdr); 13381 io->io_hdr.nexus.targ_mapped_lun = 13382 ctl_lun_map_from_port(port, io->io_hdr.nexus.targ_lun); 13383 13384 switch (io->io_hdr.io_type) { 13385 case CTL_IO_SCSI: 13386 case CTL_IO_TASK: 13387 if (ctl_debug & CTL_DEBUG_CDB) 13388 ctl_io_print(io); 13389 ctl_enqueue_incoming(io); 13390 break; 13391 default: 13392 printf("ctl_queue: unknown I/O type %d\n", io->io_hdr.io_type); 13393 return (EINVAL); 13394 } 13395 13396 return (CTL_RETVAL_COMPLETE); 13397} 13398 13399#ifdef CTL_IO_DELAY 13400static void 13401ctl_done_timer_wakeup(void *arg) 13402{ 13403 union ctl_io *io; 13404 13405 io = (union ctl_io *)arg; 13406 ctl_done(io); 13407} 13408#endif /* CTL_IO_DELAY */ 13409 13410void 13411ctl_serseq_done(union ctl_io *io) 13412{ 13413 struct ctl_lun *lun; 13414 13415 lun = (struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 13416 if (lun->be_lun == NULL || 13417 lun->be_lun->serseq == CTL_LUN_SERSEQ_OFF) 13418 return; 13419 mtx_lock(&lun->lun_lock); 13420 io->io_hdr.flags |= CTL_FLAG_SERSEQ_DONE; 13421 ctl_check_blocked(lun); 13422 mtx_unlock(&lun->lun_lock); 13423} 13424 13425void 13426ctl_done(union ctl_io *io) 13427{ 13428 13429 /* 13430 * Enable this to catch duplicate completion issues. 13431 */ 13432#if 0 13433 if (io->io_hdr.flags & CTL_FLAG_ALREADY_DONE) { 13434 printf("%s: type %d msg %d cdb %x iptl: " 13435 "%u:%u:%u tag 0x%04x " 13436 "flag %#x status %x\n", 13437 __func__, 13438 io->io_hdr.io_type, 13439 io->io_hdr.msg_type, 13440 io->scsiio.cdb[0], 13441 io->io_hdr.nexus.initid, 13442 io->io_hdr.nexus.targ_port, 13443 io->io_hdr.nexus.targ_lun, 13444 (io->io_hdr.io_type == 13445 CTL_IO_TASK) ? 13446 io->taskio.tag_num : 13447 io->scsiio.tag_num, 13448 io->io_hdr.flags, 13449 io->io_hdr.status); 13450 } else 13451 io->io_hdr.flags |= CTL_FLAG_ALREADY_DONE; 13452#endif 13453 13454 /* 13455 * This is an internal copy of an I/O, and should not go through 13456 * the normal done processing logic. 13457 */ 13458 if (io->io_hdr.flags & CTL_FLAG_INT_COPY) 13459 return; 13460 13461#ifdef CTL_IO_DELAY 13462 if (io->io_hdr.flags & CTL_FLAG_DELAY_DONE) { 13463 io->io_hdr.flags &= ~CTL_FLAG_DELAY_DONE; 13464 } else { 13465 struct ctl_lun *lun; 13466 13467 lun =(struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 13468 13469 if ((lun != NULL) 13470 && (lun->delay_info.done_delay > 0)) { 13471 13472 callout_init(&io->io_hdr.delay_callout, /*mpsafe*/ 1); 13473 io->io_hdr.flags |= CTL_FLAG_DELAY_DONE; 13474 callout_reset(&io->io_hdr.delay_callout, 13475 lun->delay_info.done_delay * hz, 13476 ctl_done_timer_wakeup, io); 13477 if (lun->delay_info.done_type == CTL_DELAY_TYPE_ONESHOT) 13478 lun->delay_info.done_delay = 0; 13479 return; 13480 } 13481 } 13482#endif /* CTL_IO_DELAY */ 13483 13484 ctl_enqueue_done(io); 13485} 13486 13487static void 13488ctl_work_thread(void *arg) 13489{ 13490 struct ctl_thread *thr = (struct ctl_thread *)arg; 13491 struct ctl_softc *softc = thr->ctl_softc; 13492 union ctl_io *io; 13493 int retval; 13494 13495 CTL_DEBUG_PRINT(("ctl_work_thread starting\n")); 13496 13497 for (;;) { 13498 /* 13499 * We handle the queues in this order: 13500 * - ISC 13501 * - done queue (to free up resources, unblock other commands) 13502 * - RtR queue 13503 * - incoming queue 13504 * 13505 * If those queues are empty, we break out of the loop and 13506 * go to sleep. 13507 */ 13508 mtx_lock(&thr->queue_lock); 13509 io = (union ctl_io *)STAILQ_FIRST(&thr->isc_queue); 13510 if (io != NULL) { 13511 STAILQ_REMOVE_HEAD(&thr->isc_queue, links); 13512 mtx_unlock(&thr->queue_lock); 13513 ctl_handle_isc(io); 13514 continue; 13515 } 13516 io = (union ctl_io *)STAILQ_FIRST(&thr->done_queue); 13517 if (io != NULL) { 13518 STAILQ_REMOVE_HEAD(&thr->done_queue, links); 13519 /* clear any blocked commands, call fe_done */ 13520 mtx_unlock(&thr->queue_lock); 13521 ctl_process_done(io); 13522 continue; 13523 } 13524 io = (union ctl_io *)STAILQ_FIRST(&thr->incoming_queue); 13525 if (io != NULL) { 13526 STAILQ_REMOVE_HEAD(&thr->incoming_queue, links); 13527 mtx_unlock(&thr->queue_lock); 13528 if (io->io_hdr.io_type == CTL_IO_TASK) 13529 ctl_run_task(io); 13530 else 13531 ctl_scsiio_precheck(softc, &io->scsiio); 13532 continue; 13533 } 13534 io = (union ctl_io *)STAILQ_FIRST(&thr->rtr_queue); 13535 if (io != NULL) { 13536 STAILQ_REMOVE_HEAD(&thr->rtr_queue, links); 13537 mtx_unlock(&thr->queue_lock); 13538 retval = ctl_scsiio(&io->scsiio); 13539 if (retval != CTL_RETVAL_COMPLETE) 13540 CTL_DEBUG_PRINT(("ctl_scsiio failed\n")); 13541 continue; 13542 } 13543 13544 /* Sleep until we have something to do. */ 13545 mtx_sleep(thr, &thr->queue_lock, PDROP | PRIBIO, "-", 0); 13546 } 13547} 13548 13549static void 13550ctl_lun_thread(void *arg) 13551{ 13552 struct ctl_softc *softc = (struct ctl_softc *)arg; 13553 struct ctl_be_lun *be_lun; 13554 13555 CTL_DEBUG_PRINT(("ctl_lun_thread starting\n")); 13556 13557 for (;;) { 13558 mtx_lock(&softc->ctl_lock); 13559 be_lun = STAILQ_FIRST(&softc->pending_lun_queue); 13560 if (be_lun != NULL) { 13561 STAILQ_REMOVE_HEAD(&softc->pending_lun_queue, links); 13562 mtx_unlock(&softc->ctl_lock); 13563 ctl_create_lun(be_lun); 13564 continue; 13565 } 13566 13567 /* Sleep until we have something to do. */ 13568 mtx_sleep(&softc->pending_lun_queue, &softc->ctl_lock, 13569 PDROP | PRIBIO, "-", 0); 13570 } 13571} 13572 13573static void 13574ctl_thresh_thread(void *arg) 13575{ 13576 struct ctl_softc *softc = (struct ctl_softc *)arg; 13577 struct ctl_lun *lun; 13578 struct ctl_logical_block_provisioning_page *page; 13579 const char *attr; 13580 union ctl_ha_msg msg; 13581 uint64_t thres, val; 13582 int i, e, set; 13583 13584 CTL_DEBUG_PRINT(("ctl_thresh_thread starting\n")); 13585 13586 for (;;) { 13587 mtx_lock(&softc->ctl_lock); 13588 STAILQ_FOREACH(lun, &softc->lun_list, links) { 13589 if ((lun->flags & CTL_LUN_DISABLED) || 13590 (lun->flags & CTL_LUN_NO_MEDIA) || 13591 lun->backend->lun_attr == NULL) 13592 continue; 13593 if ((lun->flags & CTL_LUN_PRIMARY_SC) == 0 && 13594 softc->ha_mode == CTL_HA_MODE_XFER) 13595 continue; 13596 if ((lun->MODE_RWER.byte8 & SMS_RWER_LBPERE) == 0) 13597 continue; 13598 e = 0; 13599 page = &lun->MODE_LBP; 13600 for (i = 0; i < CTL_NUM_LBP_THRESH; i++) { 13601 if ((page->descr[i].flags & SLBPPD_ENABLED) == 0) 13602 continue; 13603 thres = scsi_4btoul(page->descr[i].count); 13604 thres <<= CTL_LBP_EXPONENT; 13605 switch (page->descr[i].resource) { 13606 case 0x01: 13607 attr = "blocksavail"; 13608 break; 13609 case 0x02: 13610 attr = "blocksused"; 13611 break; 13612 case 0xf1: 13613 attr = "poolblocksavail"; 13614 break; 13615 case 0xf2: 13616 attr = "poolblocksused"; 13617 break; 13618 default: 13619 continue; 13620 } 13621 mtx_unlock(&softc->ctl_lock); // XXX 13622 val = lun->backend->lun_attr( 13623 lun->be_lun->be_lun, attr); 13624 mtx_lock(&softc->ctl_lock); 13625 if (val == UINT64_MAX) 13626 continue; 13627 if ((page->descr[i].flags & SLBPPD_ARMING_MASK) 13628 == SLBPPD_ARMING_INC) 13629 e = (val >= thres); 13630 else 13631 e = (val <= thres); 13632 if (e) 13633 break; 13634 } 13635 mtx_lock(&lun->lun_lock); 13636 if (e) { 13637 scsi_u64to8b((uint8_t *)&page->descr[i] - 13638 (uint8_t *)page, lun->ua_tpt_info); 13639 if (lun->lasttpt == 0 || 13640 time_uptime - lun->lasttpt >= CTL_LBP_UA_PERIOD) { 13641 lun->lasttpt = time_uptime; 13642 ctl_est_ua_all(lun, -1, CTL_UA_THIN_PROV_THRES); 13643 set = 1; 13644 } else 13645 set = 0; 13646 } else { 13647 lun->lasttpt = 0; 13648 ctl_clr_ua_all(lun, -1, CTL_UA_THIN_PROV_THRES); 13649 set = -1; 13650 } 13651 mtx_unlock(&lun->lun_lock); 13652 if (set != 0 && 13653 lun->ctl_softc->ha_mode == CTL_HA_MODE_XFER) { 13654 /* Send msg to other side. */ 13655 bzero(&msg.ua, sizeof(msg.ua)); 13656 msg.hdr.msg_type = CTL_MSG_UA; 13657 msg.hdr.nexus.initid = -1; 13658 msg.hdr.nexus.targ_port = -1; 13659 msg.hdr.nexus.targ_lun = lun->lun; 13660 msg.hdr.nexus.targ_mapped_lun = lun->lun; 13661 msg.ua.ua_all = 1; 13662 msg.ua.ua_set = (set > 0); 13663 msg.ua.ua_type = CTL_UA_THIN_PROV_THRES; 13664 memcpy(msg.ua.ua_info, lun->ua_tpt_info, 8); 13665 mtx_unlock(&softc->ctl_lock); // XXX 13666 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, 13667 sizeof(msg.ua), M_WAITOK); 13668 mtx_lock(&softc->ctl_lock); 13669 } 13670 } 13671 mtx_unlock(&softc->ctl_lock); 13672 pause("-", CTL_LBP_PERIOD * hz); 13673 } 13674} 13675 13676static void 13677ctl_enqueue_incoming(union ctl_io *io) 13678{ 13679 struct ctl_softc *softc = control_softc; 13680 struct ctl_thread *thr; 13681 u_int idx; 13682 13683 idx = (io->io_hdr.nexus.targ_port * 127 + 13684 io->io_hdr.nexus.initid) % worker_threads; 13685 thr = &softc->threads[idx]; 13686 mtx_lock(&thr->queue_lock); 13687 STAILQ_INSERT_TAIL(&thr->incoming_queue, &io->io_hdr, links); 13688 mtx_unlock(&thr->queue_lock); 13689 wakeup(thr); 13690} 13691 13692static void 13693ctl_enqueue_rtr(union ctl_io *io) 13694{ 13695 struct ctl_softc *softc = control_softc; 13696 struct ctl_thread *thr; 13697 13698 thr = &softc->threads[io->io_hdr.nexus.targ_mapped_lun % worker_threads]; 13699 mtx_lock(&thr->queue_lock); 13700 STAILQ_INSERT_TAIL(&thr->rtr_queue, &io->io_hdr, links); 13701 mtx_unlock(&thr->queue_lock); 13702 wakeup(thr); 13703} 13704 13705static void 13706ctl_enqueue_done(union ctl_io *io) 13707{ 13708 struct ctl_softc *softc = control_softc; 13709 struct ctl_thread *thr; 13710 13711 thr = &softc->threads[io->io_hdr.nexus.targ_mapped_lun % worker_threads]; 13712 mtx_lock(&thr->queue_lock); 13713 STAILQ_INSERT_TAIL(&thr->done_queue, &io->io_hdr, links); 13714 mtx_unlock(&thr->queue_lock); 13715 wakeup(thr); 13716} 13717 13718static void 13719ctl_enqueue_isc(union ctl_io *io) 13720{ 13721 struct ctl_softc *softc = control_softc; 13722 struct ctl_thread *thr; 13723 13724 thr = &softc->threads[io->io_hdr.nexus.targ_mapped_lun % worker_threads]; 13725 mtx_lock(&thr->queue_lock); 13726 STAILQ_INSERT_TAIL(&thr->isc_queue, &io->io_hdr, links); 13727 mtx_unlock(&thr->queue_lock); 13728 wakeup(thr); 13729} 13730 13731/* 13732 * vim: ts=8 13733 */ 13734