ctl.c revision 312843
1/*- 2 * Copyright (c) 2003-2009 Silicon Graphics International Corp. 3 * Copyright (c) 2012 The FreeBSD Foundation 4 * Copyright (c) 2014-2017 Alexander Motin <mav@FreeBSD.org> 5 * All rights reserved. 6 * 7 * Portions of this software were developed by Edward Tomasz Napierala 8 * under sponsorship from the FreeBSD Foundation. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions, and the following disclaimer, 15 * without modification. 16 * 2. Redistributions in binary form must reproduce at minimum a disclaimer 17 * substantially similar to the "NO WARRANTY" disclaimer below 18 * ("Disclaimer") and any redistribution must be conditioned upon 19 * including a substantially similar Disclaimer requirement for further 20 * binary redistribution. 21 * 22 * NO WARRANTY 23 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 24 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 25 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR 26 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 27 * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 31 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 32 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 33 * POSSIBILITY OF SUCH DAMAGES. 34 * 35 * $Id$ 36 */ 37/* 38 * CAM Target Layer, a SCSI device emulation subsystem. 39 * 40 * Author: Ken Merry <ken@FreeBSD.org> 41 */ 42 43#define _CTL_C 44 45#include <sys/cdefs.h> 46__FBSDID("$FreeBSD: stable/10/sys/cam/ctl/ctl.c 312843 2017-01-26 21:02:06Z 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"); 412static int ctl_lun_map_size = 1024; 413SYSCTL_INT(_kern_cam_ctl, OID_AUTO, lun_map_size, CTLFLAG_RWTUN, 414 &ctl_lun_map_size, 0, "Size of per-port LUN map (max LUN + 1)"); 415 416/* 417 * Supported pages (0x00), Serial number (0x80), Device ID (0x83), 418 * Extended INQUIRY Data (0x86), Mode Page Policy (0x87), 419 * SCSI Ports (0x88), Third-party Copy (0x8F), Block limits (0xB0), 420 * Block Device Characteristics (0xB1) and Logical Block Provisioning (0xB2) 421 */ 422#define SCSI_EVPD_NUM_SUPPORTED_PAGES 10 423 424static void ctl_isc_event_handler(ctl_ha_channel chanel, ctl_ha_event event, 425 int param); 426static void ctl_copy_sense_data(union ctl_ha_msg *src, union ctl_io *dest); 427static void ctl_copy_sense_data_back(union ctl_io *src, union ctl_ha_msg *dest); 428static int ctl_init(void); 429void ctl_shutdown(void); 430static int ctl_open(struct cdev *dev, int flags, int fmt, struct thread *td); 431static int ctl_close(struct cdev *dev, int flags, int fmt, struct thread *td); 432static void ctl_serialize_other_sc_cmd(struct ctl_scsiio *ctsio); 433static void ctl_ioctl_fill_ooa(struct ctl_lun *lun, uint32_t *cur_fill_num, 434 struct ctl_ooa *ooa_hdr, 435 struct ctl_ooa_entry *kern_entries); 436static int ctl_ioctl(struct cdev *dev, u_long cmd, caddr_t addr, int flag, 437 struct thread *td); 438static int ctl_alloc_lun(struct ctl_softc *ctl_softc, struct ctl_lun *lun, 439 struct ctl_be_lun *be_lun); 440static int ctl_free_lun(struct ctl_lun *lun); 441static void ctl_create_lun(struct ctl_be_lun *be_lun); 442 443static int ctl_do_mode_select(union ctl_io *io); 444static int ctl_pro_preempt(struct ctl_softc *softc, struct ctl_lun *lun, 445 uint64_t res_key, uint64_t sa_res_key, 446 uint8_t type, uint32_t residx, 447 struct ctl_scsiio *ctsio, 448 struct scsi_per_res_out *cdb, 449 struct scsi_per_res_out_parms* param); 450static void ctl_pro_preempt_other(struct ctl_lun *lun, 451 union ctl_ha_msg *msg); 452static void ctl_hndl_per_res_out_on_other_sc(union ctl_io *io); 453static int ctl_inquiry_evpd_supported(struct ctl_scsiio *ctsio, int alloc_len); 454static int ctl_inquiry_evpd_serial(struct ctl_scsiio *ctsio, int alloc_len); 455static int ctl_inquiry_evpd_devid(struct ctl_scsiio *ctsio, int alloc_len); 456static int ctl_inquiry_evpd_eid(struct ctl_scsiio *ctsio, int alloc_len); 457static int ctl_inquiry_evpd_mpp(struct ctl_scsiio *ctsio, int alloc_len); 458static int ctl_inquiry_evpd_scsi_ports(struct ctl_scsiio *ctsio, 459 int alloc_len); 460static int ctl_inquiry_evpd_block_limits(struct ctl_scsiio *ctsio, 461 int alloc_len); 462static int ctl_inquiry_evpd_bdc(struct ctl_scsiio *ctsio, int alloc_len); 463static int ctl_inquiry_evpd_lbp(struct ctl_scsiio *ctsio, int alloc_len); 464static int ctl_inquiry_evpd(struct ctl_scsiio *ctsio); 465static int ctl_inquiry_std(struct ctl_scsiio *ctsio); 466static int ctl_get_lba_len(union ctl_io *io, uint64_t *lba, uint64_t *len); 467static ctl_action ctl_extent_check(union ctl_io *io1, union ctl_io *io2, 468 bool seq); 469static ctl_action ctl_extent_check_seq(union ctl_io *io1, union ctl_io *io2); 470static ctl_action ctl_check_for_blockage(struct ctl_lun *lun, 471 union ctl_io *pending_io, union ctl_io *ooa_io); 472static ctl_action ctl_check_ooa(struct ctl_lun *lun, union ctl_io *pending_io, 473 union ctl_io *starting_io); 474static int ctl_check_blocked(struct ctl_lun *lun); 475static int ctl_scsiio_lun_check(struct ctl_lun *lun, 476 const struct ctl_cmd_entry *entry, 477 struct ctl_scsiio *ctsio); 478static void ctl_failover_lun(union ctl_io *io); 479static int ctl_scsiio_precheck(struct ctl_softc *ctl_softc, 480 struct ctl_scsiio *ctsio); 481static int ctl_scsiio(struct ctl_scsiio *ctsio); 482 483static int ctl_bus_reset(struct ctl_softc *ctl_softc, union ctl_io *io); 484static int ctl_target_reset(struct ctl_softc *ctl_softc, union ctl_io *io, 485 ctl_ua_type ua_type); 486static int ctl_do_lun_reset(struct ctl_lun *lun, union ctl_io *io, 487 ctl_ua_type ua_type); 488static int ctl_lun_reset(struct ctl_softc *ctl_softc, union ctl_io *io); 489static int ctl_abort_task(union ctl_io *io); 490static int ctl_abort_task_set(union ctl_io *io); 491static int ctl_query_task(union ctl_io *io, int task_set); 492static int ctl_i_t_nexus_reset(union ctl_io *io); 493static int ctl_query_async_event(union ctl_io *io); 494static void ctl_run_task(union ctl_io *io); 495#ifdef CTL_IO_DELAY 496static void ctl_datamove_timer_wakeup(void *arg); 497static void ctl_done_timer_wakeup(void *arg); 498#endif /* CTL_IO_DELAY */ 499 500static void ctl_send_datamove_done(union ctl_io *io, int have_lock); 501static void ctl_datamove_remote_write_cb(struct ctl_ha_dt_req *rq); 502static int ctl_datamove_remote_dm_write_cb(union ctl_io *io); 503static void ctl_datamove_remote_write(union ctl_io *io); 504static int ctl_datamove_remote_dm_read_cb(union ctl_io *io); 505static void ctl_datamove_remote_read_cb(struct ctl_ha_dt_req *rq); 506static int ctl_datamove_remote_sgl_setup(union ctl_io *io); 507static int ctl_datamove_remote_xfer(union ctl_io *io, unsigned command, 508 ctl_ha_dt_cb callback); 509static void ctl_datamove_remote_read(union ctl_io *io); 510static void ctl_datamove_remote(union ctl_io *io); 511static void ctl_process_done(union ctl_io *io); 512static void ctl_lun_thread(void *arg); 513static void ctl_thresh_thread(void *arg); 514static void ctl_work_thread(void *arg); 515static void ctl_enqueue_incoming(union ctl_io *io); 516static void ctl_enqueue_rtr(union ctl_io *io); 517static void ctl_enqueue_done(union ctl_io *io); 518static void ctl_enqueue_isc(union ctl_io *io); 519static const struct ctl_cmd_entry * 520 ctl_get_cmd_entry(struct ctl_scsiio *ctsio, int *sa); 521static const struct ctl_cmd_entry * 522 ctl_validate_command(struct ctl_scsiio *ctsio); 523static int ctl_cmd_applicable(uint8_t lun_type, 524 const struct ctl_cmd_entry *entry); 525 526static uint64_t ctl_get_prkey(struct ctl_lun *lun, uint32_t residx); 527static void ctl_clr_prkey(struct ctl_lun *lun, uint32_t residx); 528static void ctl_alloc_prkey(struct ctl_lun *lun, uint32_t residx); 529static void ctl_set_prkey(struct ctl_lun *lun, uint32_t residx, uint64_t key); 530 531/* 532 * Load the serialization table. This isn't very pretty, but is probably 533 * the easiest way to do it. 534 */ 535#include "ctl_ser_table.c" 536 537/* 538 * We only need to define open, close and ioctl routines for this driver. 539 */ 540static struct cdevsw ctl_cdevsw = { 541 .d_version = D_VERSION, 542 .d_flags = 0, 543 .d_open = ctl_open, 544 .d_close = ctl_close, 545 .d_ioctl = ctl_ioctl, 546 .d_name = "ctl", 547}; 548 549 550MALLOC_DEFINE(M_CTL, "ctlmem", "Memory used for CTL"); 551 552static int ctl_module_event_handler(module_t, int /*modeventtype_t*/, void *); 553 554static moduledata_t ctl_moduledata = { 555 "ctl", 556 ctl_module_event_handler, 557 NULL 558}; 559 560DECLARE_MODULE(ctl, ctl_moduledata, SI_SUB_CONFIGURE, SI_ORDER_THIRD); 561MODULE_VERSION(ctl, 1); 562 563static struct ctl_frontend ha_frontend = 564{ 565 .name = "ha", 566}; 567 568static void 569ctl_ha_datamove(union ctl_io *io) 570{ 571 struct ctl_lun *lun = CTL_LUN(io); 572 struct ctl_sg_entry *sgl; 573 union ctl_ha_msg msg; 574 uint32_t sg_entries_sent; 575 int do_sg_copy, i, j; 576 577 memset(&msg.dt, 0, sizeof(msg.dt)); 578 msg.hdr.msg_type = CTL_MSG_DATAMOVE; 579 msg.hdr.original_sc = io->io_hdr.original_sc; 580 msg.hdr.serializing_sc = io; 581 msg.hdr.nexus = io->io_hdr.nexus; 582 msg.hdr.status = io->io_hdr.status; 583 msg.dt.flags = io->io_hdr.flags; 584 585 /* 586 * We convert everything into a S/G list here. We can't 587 * pass by reference, only by value between controllers. 588 * So we can't pass a pointer to the S/G list, only as many 589 * S/G entries as we can fit in here. If it's possible for 590 * us to get more than CTL_HA_MAX_SG_ENTRIES S/G entries, 591 * then we need to break this up into multiple transfers. 592 */ 593 if (io->scsiio.kern_sg_entries == 0) { 594 msg.dt.kern_sg_entries = 1; 595#if 0 596 if (io->io_hdr.flags & CTL_FLAG_BUS_ADDR) { 597 msg.dt.sg_list[0].addr = io->scsiio.kern_data_ptr; 598 } else { 599 /* XXX KDM use busdma here! */ 600 msg.dt.sg_list[0].addr = 601 (void *)vtophys(io->scsiio.kern_data_ptr); 602 } 603#else 604 KASSERT((io->io_hdr.flags & CTL_FLAG_BUS_ADDR) == 0, 605 ("HA does not support BUS_ADDR")); 606 msg.dt.sg_list[0].addr = io->scsiio.kern_data_ptr; 607#endif 608 msg.dt.sg_list[0].len = io->scsiio.kern_data_len; 609 do_sg_copy = 0; 610 } else { 611 msg.dt.kern_sg_entries = io->scsiio.kern_sg_entries; 612 do_sg_copy = 1; 613 } 614 615 msg.dt.kern_data_len = io->scsiio.kern_data_len; 616 msg.dt.kern_total_len = io->scsiio.kern_total_len; 617 msg.dt.kern_data_resid = io->scsiio.kern_data_resid; 618 msg.dt.kern_rel_offset = io->scsiio.kern_rel_offset; 619 msg.dt.sg_sequence = 0; 620 621 /* 622 * Loop until we've sent all of the S/G entries. On the 623 * other end, we'll recompose these S/G entries into one 624 * contiguous list before processing. 625 */ 626 for (sg_entries_sent = 0; sg_entries_sent < msg.dt.kern_sg_entries; 627 msg.dt.sg_sequence++) { 628 msg.dt.cur_sg_entries = MIN((sizeof(msg.dt.sg_list) / 629 sizeof(msg.dt.sg_list[0])), 630 msg.dt.kern_sg_entries - sg_entries_sent); 631 if (do_sg_copy != 0) { 632 sgl = (struct ctl_sg_entry *)io->scsiio.kern_data_ptr; 633 for (i = sg_entries_sent, j = 0; 634 i < msg.dt.cur_sg_entries; i++, j++) { 635#if 0 636 if (io->io_hdr.flags & CTL_FLAG_BUS_ADDR) { 637 msg.dt.sg_list[j].addr = sgl[i].addr; 638 } else { 639 /* XXX KDM use busdma here! */ 640 msg.dt.sg_list[j].addr = 641 (void *)vtophys(sgl[i].addr); 642 } 643#else 644 KASSERT((io->io_hdr.flags & 645 CTL_FLAG_BUS_ADDR) == 0, 646 ("HA does not support BUS_ADDR")); 647 msg.dt.sg_list[j].addr = sgl[i].addr; 648#endif 649 msg.dt.sg_list[j].len = sgl[i].len; 650 } 651 } 652 653 sg_entries_sent += msg.dt.cur_sg_entries; 654 msg.dt.sg_last = (sg_entries_sent >= msg.dt.kern_sg_entries); 655 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, 656 sizeof(msg.dt) - sizeof(msg.dt.sg_list) + 657 sizeof(struct ctl_sg_entry) * msg.dt.cur_sg_entries, 658 M_WAITOK) > CTL_HA_STATUS_SUCCESS) { 659 io->io_hdr.port_status = 31341; 660 io->scsiio.be_move_done(io); 661 return; 662 } 663 msg.dt.sent_sg_entries = sg_entries_sent; 664 } 665 666 /* 667 * Officially handover the request from us to peer. 668 * If failover has just happened, then we must return error. 669 * If failover happen just after, then it is not our problem. 670 */ 671 if (lun) 672 mtx_lock(&lun->lun_lock); 673 if (io->io_hdr.flags & CTL_FLAG_FAILOVER) { 674 if (lun) 675 mtx_unlock(&lun->lun_lock); 676 io->io_hdr.port_status = 31342; 677 io->scsiio.be_move_done(io); 678 return; 679 } 680 io->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 681 io->io_hdr.flags |= CTL_FLAG_DMA_INPROG; 682 if (lun) 683 mtx_unlock(&lun->lun_lock); 684} 685 686static void 687ctl_ha_done(union ctl_io *io) 688{ 689 union ctl_ha_msg msg; 690 691 if (io->io_hdr.io_type == CTL_IO_SCSI) { 692 memset(&msg, 0, sizeof(msg)); 693 msg.hdr.msg_type = CTL_MSG_FINISH_IO; 694 msg.hdr.original_sc = io->io_hdr.original_sc; 695 msg.hdr.nexus = io->io_hdr.nexus; 696 msg.hdr.status = io->io_hdr.status; 697 msg.scsi.scsi_status = io->scsiio.scsi_status; 698 msg.scsi.tag_num = io->scsiio.tag_num; 699 msg.scsi.tag_type = io->scsiio.tag_type; 700 msg.scsi.sense_len = io->scsiio.sense_len; 701 msg.scsi.sense_residual = io->scsiio.sense_residual; 702 msg.scsi.residual = io->scsiio.residual; 703 memcpy(&msg.scsi.sense_data, &io->scsiio.sense_data, 704 io->scsiio.sense_len); 705 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, 706 sizeof(msg.scsi) - sizeof(msg.scsi.sense_data) + 707 msg.scsi.sense_len, M_WAITOK); 708 } 709 ctl_free_io(io); 710} 711 712static void 713ctl_isc_handler_finish_xfer(struct ctl_softc *ctl_softc, 714 union ctl_ha_msg *msg_info) 715{ 716 struct ctl_scsiio *ctsio; 717 718 if (msg_info->hdr.original_sc == NULL) { 719 printf("%s: original_sc == NULL!\n", __func__); 720 /* XXX KDM now what? */ 721 return; 722 } 723 724 ctsio = &msg_info->hdr.original_sc->scsiio; 725 ctsio->io_hdr.flags |= CTL_FLAG_IO_ACTIVE; 726 ctsio->io_hdr.msg_type = CTL_MSG_FINISH_IO; 727 ctsio->io_hdr.status = msg_info->hdr.status; 728 ctsio->scsi_status = msg_info->scsi.scsi_status; 729 ctsio->sense_len = msg_info->scsi.sense_len; 730 ctsio->sense_residual = msg_info->scsi.sense_residual; 731 ctsio->residual = msg_info->scsi.residual; 732 memcpy(&ctsio->sense_data, &msg_info->scsi.sense_data, 733 msg_info->scsi.sense_len); 734 ctl_enqueue_isc((union ctl_io *)ctsio); 735} 736 737static void 738ctl_isc_handler_finish_ser_only(struct ctl_softc *ctl_softc, 739 union ctl_ha_msg *msg_info) 740{ 741 struct ctl_scsiio *ctsio; 742 743 if (msg_info->hdr.serializing_sc == NULL) { 744 printf("%s: serializing_sc == NULL!\n", __func__); 745 /* XXX KDM now what? */ 746 return; 747 } 748 749 ctsio = &msg_info->hdr.serializing_sc->scsiio; 750 ctsio->io_hdr.msg_type = CTL_MSG_FINISH_IO; 751 ctl_enqueue_isc((union ctl_io *)ctsio); 752} 753 754void 755ctl_isc_announce_lun(struct ctl_lun *lun) 756{ 757 struct ctl_softc *softc = lun->ctl_softc; 758 union ctl_ha_msg *msg; 759 struct ctl_ha_msg_lun_pr_key pr_key; 760 int i, k; 761 762 if (softc->ha_link != CTL_HA_LINK_ONLINE) 763 return; 764 mtx_lock(&lun->lun_lock); 765 i = sizeof(msg->lun); 766 if (lun->lun_devid) 767 i += lun->lun_devid->len; 768 i += sizeof(pr_key) * lun->pr_key_count; 769alloc: 770 mtx_unlock(&lun->lun_lock); 771 msg = malloc(i, M_CTL, M_WAITOK); 772 mtx_lock(&lun->lun_lock); 773 k = sizeof(msg->lun); 774 if (lun->lun_devid) 775 k += lun->lun_devid->len; 776 k += sizeof(pr_key) * lun->pr_key_count; 777 if (i < k) { 778 free(msg, M_CTL); 779 i = k; 780 goto alloc; 781 } 782 bzero(&msg->lun, sizeof(msg->lun)); 783 msg->hdr.msg_type = CTL_MSG_LUN_SYNC; 784 msg->hdr.nexus.targ_lun = lun->lun; 785 msg->hdr.nexus.targ_mapped_lun = lun->lun; 786 msg->lun.flags = lun->flags; 787 msg->lun.pr_generation = lun->pr_generation; 788 msg->lun.pr_res_idx = lun->pr_res_idx; 789 msg->lun.pr_res_type = lun->pr_res_type; 790 msg->lun.pr_key_count = lun->pr_key_count; 791 i = 0; 792 if (lun->lun_devid) { 793 msg->lun.lun_devid_len = lun->lun_devid->len; 794 memcpy(&msg->lun.data[i], lun->lun_devid->data, 795 msg->lun.lun_devid_len); 796 i += msg->lun.lun_devid_len; 797 } 798 for (k = 0; k < CTL_MAX_INITIATORS; k++) { 799 if ((pr_key.pr_key = ctl_get_prkey(lun, k)) == 0) 800 continue; 801 pr_key.pr_iid = k; 802 memcpy(&msg->lun.data[i], &pr_key, sizeof(pr_key)); 803 i += sizeof(pr_key); 804 } 805 mtx_unlock(&lun->lun_lock); 806 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg->port, sizeof(msg->port) + i, 807 M_WAITOK); 808 free(msg, M_CTL); 809 810 if (lun->flags & CTL_LUN_PRIMARY_SC) { 811 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 812 ctl_isc_announce_mode(lun, -1, 813 lun->mode_pages.index[i].page_code & SMPH_PC_MASK, 814 lun->mode_pages.index[i].subpage); 815 } 816 } 817} 818 819void 820ctl_isc_announce_port(struct ctl_port *port) 821{ 822 struct ctl_softc *softc = port->ctl_softc; 823 union ctl_ha_msg *msg; 824 int i; 825 826 if (port->targ_port < softc->port_min || 827 port->targ_port >= softc->port_max || 828 softc->ha_link != CTL_HA_LINK_ONLINE) 829 return; 830 i = sizeof(msg->port) + strlen(port->port_name) + 1; 831 if (port->lun_map) 832 i += port->lun_map_size * sizeof(uint32_t); 833 if (port->port_devid) 834 i += port->port_devid->len; 835 if (port->target_devid) 836 i += port->target_devid->len; 837 if (port->init_devid) 838 i += port->init_devid->len; 839 msg = malloc(i, M_CTL, M_WAITOK); 840 bzero(&msg->port, sizeof(msg->port)); 841 msg->hdr.msg_type = CTL_MSG_PORT_SYNC; 842 msg->hdr.nexus.targ_port = port->targ_port; 843 msg->port.port_type = port->port_type; 844 msg->port.physical_port = port->physical_port; 845 msg->port.virtual_port = port->virtual_port; 846 msg->port.status = port->status; 847 i = 0; 848 msg->port.name_len = sprintf(&msg->port.data[i], 849 "%d:%s", softc->ha_id, port->port_name) + 1; 850 i += msg->port.name_len; 851 if (port->lun_map) { 852 msg->port.lun_map_len = port->lun_map_size * sizeof(uint32_t); 853 memcpy(&msg->port.data[i], port->lun_map, 854 msg->port.lun_map_len); 855 i += msg->port.lun_map_len; 856 } 857 if (port->port_devid) { 858 msg->port.port_devid_len = port->port_devid->len; 859 memcpy(&msg->port.data[i], port->port_devid->data, 860 msg->port.port_devid_len); 861 i += msg->port.port_devid_len; 862 } 863 if (port->target_devid) { 864 msg->port.target_devid_len = port->target_devid->len; 865 memcpy(&msg->port.data[i], port->target_devid->data, 866 msg->port.target_devid_len); 867 i += msg->port.target_devid_len; 868 } 869 if (port->init_devid) { 870 msg->port.init_devid_len = port->init_devid->len; 871 memcpy(&msg->port.data[i], port->init_devid->data, 872 msg->port.init_devid_len); 873 i += msg->port.init_devid_len; 874 } 875 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg->port, sizeof(msg->port) + i, 876 M_WAITOK); 877 free(msg, M_CTL); 878} 879 880void 881ctl_isc_announce_iid(struct ctl_port *port, int iid) 882{ 883 struct ctl_softc *softc = port->ctl_softc; 884 union ctl_ha_msg *msg; 885 int i, l; 886 887 if (port->targ_port < softc->port_min || 888 port->targ_port >= softc->port_max || 889 softc->ha_link != CTL_HA_LINK_ONLINE) 890 return; 891 mtx_lock(&softc->ctl_lock); 892 i = sizeof(msg->iid); 893 l = 0; 894 if (port->wwpn_iid[iid].name) 895 l = strlen(port->wwpn_iid[iid].name) + 1; 896 i += l; 897 msg = malloc(i, M_CTL, M_NOWAIT); 898 if (msg == NULL) { 899 mtx_unlock(&softc->ctl_lock); 900 return; 901 } 902 bzero(&msg->iid, sizeof(msg->iid)); 903 msg->hdr.msg_type = CTL_MSG_IID_SYNC; 904 msg->hdr.nexus.targ_port = port->targ_port; 905 msg->hdr.nexus.initid = iid; 906 msg->iid.in_use = port->wwpn_iid[iid].in_use; 907 msg->iid.name_len = l; 908 msg->iid.wwpn = port->wwpn_iid[iid].wwpn; 909 if (port->wwpn_iid[iid].name) 910 strlcpy(msg->iid.data, port->wwpn_iid[iid].name, l); 911 mtx_unlock(&softc->ctl_lock); 912 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg->iid, i, M_NOWAIT); 913 free(msg, M_CTL); 914} 915 916void 917ctl_isc_announce_mode(struct ctl_lun *lun, uint32_t initidx, 918 uint8_t page, uint8_t subpage) 919{ 920 struct ctl_softc *softc = lun->ctl_softc; 921 union ctl_ha_msg msg; 922 u_int i; 923 924 if (softc->ha_link != CTL_HA_LINK_ONLINE) 925 return; 926 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 927 if ((lun->mode_pages.index[i].page_code & SMPH_PC_MASK) == 928 page && lun->mode_pages.index[i].subpage == subpage) 929 break; 930 } 931 if (i == CTL_NUM_MODE_PAGES) 932 return; 933 934 /* Don't try to replicate pages not present on this device. */ 935 if (lun->mode_pages.index[i].page_data == NULL) 936 return; 937 938 bzero(&msg.mode, sizeof(msg.mode)); 939 msg.hdr.msg_type = CTL_MSG_MODE_SYNC; 940 msg.hdr.nexus.targ_port = initidx / CTL_MAX_INIT_PER_PORT; 941 msg.hdr.nexus.initid = initidx % CTL_MAX_INIT_PER_PORT; 942 msg.hdr.nexus.targ_lun = lun->lun; 943 msg.hdr.nexus.targ_mapped_lun = lun->lun; 944 msg.mode.page_code = page; 945 msg.mode.subpage = subpage; 946 msg.mode.page_len = lun->mode_pages.index[i].page_len; 947 memcpy(msg.mode.data, lun->mode_pages.index[i].page_data, 948 msg.mode.page_len); 949 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg.mode, sizeof(msg.mode), 950 M_WAITOK); 951} 952 953static void 954ctl_isc_ha_link_up(struct ctl_softc *softc) 955{ 956 struct ctl_port *port; 957 struct ctl_lun *lun; 958 union ctl_ha_msg msg; 959 int i; 960 961 /* Announce this node parameters to peer for validation. */ 962 msg.login.msg_type = CTL_MSG_LOGIN; 963 msg.login.version = CTL_HA_VERSION; 964 msg.login.ha_mode = softc->ha_mode; 965 msg.login.ha_id = softc->ha_id; 966 msg.login.max_luns = CTL_MAX_LUNS; 967 msg.login.max_ports = CTL_MAX_PORTS; 968 msg.login.max_init_per_port = CTL_MAX_INIT_PER_PORT; 969 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg.login, sizeof(msg.login), 970 M_WAITOK); 971 972 STAILQ_FOREACH(port, &softc->port_list, links) { 973 ctl_isc_announce_port(port); 974 for (i = 0; i < CTL_MAX_INIT_PER_PORT; i++) { 975 if (port->wwpn_iid[i].in_use) 976 ctl_isc_announce_iid(port, i); 977 } 978 } 979 STAILQ_FOREACH(lun, &softc->lun_list, links) 980 ctl_isc_announce_lun(lun); 981} 982 983static void 984ctl_isc_ha_link_down(struct ctl_softc *softc) 985{ 986 struct ctl_port *port; 987 struct ctl_lun *lun; 988 union ctl_io *io; 989 int i; 990 991 mtx_lock(&softc->ctl_lock); 992 STAILQ_FOREACH(lun, &softc->lun_list, links) { 993 mtx_lock(&lun->lun_lock); 994 if (lun->flags & CTL_LUN_PEER_SC_PRIMARY) { 995 lun->flags &= ~CTL_LUN_PEER_SC_PRIMARY; 996 ctl_est_ua_all(lun, -1, CTL_UA_ASYM_ACC_CHANGE); 997 } 998 mtx_unlock(&lun->lun_lock); 999 1000 mtx_unlock(&softc->ctl_lock); 1001 io = ctl_alloc_io(softc->othersc_pool); 1002 mtx_lock(&softc->ctl_lock); 1003 ctl_zero_io(io); 1004 io->io_hdr.msg_type = CTL_MSG_FAILOVER; 1005 io->io_hdr.nexus.targ_mapped_lun = lun->lun; 1006 ctl_enqueue_isc(io); 1007 } 1008 1009 STAILQ_FOREACH(port, &softc->port_list, links) { 1010 if (port->targ_port >= softc->port_min && 1011 port->targ_port < softc->port_max) 1012 continue; 1013 port->status &= ~CTL_PORT_STATUS_ONLINE; 1014 for (i = 0; i < CTL_MAX_INIT_PER_PORT; i++) { 1015 port->wwpn_iid[i].in_use = 0; 1016 free(port->wwpn_iid[i].name, M_CTL); 1017 port->wwpn_iid[i].name = NULL; 1018 } 1019 } 1020 mtx_unlock(&softc->ctl_lock); 1021} 1022 1023static void 1024ctl_isc_ua(struct ctl_softc *softc, union ctl_ha_msg *msg, int len) 1025{ 1026 struct ctl_lun *lun; 1027 uint32_t iid = ctl_get_initindex(&msg->hdr.nexus); 1028 1029 mtx_lock(&softc->ctl_lock); 1030 if (msg->hdr.nexus.targ_mapped_lun >= CTL_MAX_LUNS || 1031 (lun = softc->ctl_luns[msg->hdr.nexus.targ_mapped_lun]) == NULL) { 1032 mtx_unlock(&softc->ctl_lock); 1033 return; 1034 } 1035 mtx_lock(&lun->lun_lock); 1036 mtx_unlock(&softc->ctl_lock); 1037 if (msg->ua.ua_type == CTL_UA_THIN_PROV_THRES && msg->ua.ua_set) 1038 memcpy(lun->ua_tpt_info, msg->ua.ua_info, 8); 1039 if (msg->ua.ua_all) { 1040 if (msg->ua.ua_set) 1041 ctl_est_ua_all(lun, iid, msg->ua.ua_type); 1042 else 1043 ctl_clr_ua_all(lun, iid, msg->ua.ua_type); 1044 } else { 1045 if (msg->ua.ua_set) 1046 ctl_est_ua(lun, iid, msg->ua.ua_type); 1047 else 1048 ctl_clr_ua(lun, iid, msg->ua.ua_type); 1049 } 1050 mtx_unlock(&lun->lun_lock); 1051} 1052 1053static void 1054ctl_isc_lun_sync(struct ctl_softc *softc, union ctl_ha_msg *msg, int len) 1055{ 1056 struct ctl_lun *lun; 1057 struct ctl_ha_msg_lun_pr_key pr_key; 1058 int i, k; 1059 ctl_lun_flags oflags; 1060 uint32_t targ_lun; 1061 1062 targ_lun = msg->hdr.nexus.targ_mapped_lun; 1063 mtx_lock(&softc->ctl_lock); 1064 if (targ_lun >= CTL_MAX_LUNS || 1065 (lun = softc->ctl_luns[targ_lun]) == NULL) { 1066 mtx_unlock(&softc->ctl_lock); 1067 return; 1068 } 1069 mtx_lock(&lun->lun_lock); 1070 mtx_unlock(&softc->ctl_lock); 1071 if (lun->flags & CTL_LUN_DISABLED) { 1072 mtx_unlock(&lun->lun_lock); 1073 return; 1074 } 1075 i = (lun->lun_devid != NULL) ? lun->lun_devid->len : 0; 1076 if (msg->lun.lun_devid_len != i || (i > 0 && 1077 memcmp(&msg->lun.data[0], lun->lun_devid->data, i) != 0)) { 1078 mtx_unlock(&lun->lun_lock); 1079 printf("%s: Received conflicting HA LUN %d\n", 1080 __func__, targ_lun); 1081 return; 1082 } else { 1083 /* Record whether peer is primary. */ 1084 oflags = lun->flags; 1085 if ((msg->lun.flags & CTL_LUN_PRIMARY_SC) && 1086 (msg->lun.flags & CTL_LUN_DISABLED) == 0) 1087 lun->flags |= CTL_LUN_PEER_SC_PRIMARY; 1088 else 1089 lun->flags &= ~CTL_LUN_PEER_SC_PRIMARY; 1090 if (oflags != lun->flags) 1091 ctl_est_ua_all(lun, -1, CTL_UA_ASYM_ACC_CHANGE); 1092 1093 /* If peer is primary and we are not -- use data */ 1094 if ((lun->flags & CTL_LUN_PRIMARY_SC) == 0 && 1095 (lun->flags & CTL_LUN_PEER_SC_PRIMARY)) { 1096 lun->pr_generation = msg->lun.pr_generation; 1097 lun->pr_res_idx = msg->lun.pr_res_idx; 1098 lun->pr_res_type = msg->lun.pr_res_type; 1099 lun->pr_key_count = msg->lun.pr_key_count; 1100 for (k = 0; k < CTL_MAX_INITIATORS; k++) 1101 ctl_clr_prkey(lun, k); 1102 for (k = 0; k < msg->lun.pr_key_count; k++) { 1103 memcpy(&pr_key, &msg->lun.data[i], 1104 sizeof(pr_key)); 1105 ctl_alloc_prkey(lun, pr_key.pr_iid); 1106 ctl_set_prkey(lun, pr_key.pr_iid, 1107 pr_key.pr_key); 1108 i += sizeof(pr_key); 1109 } 1110 } 1111 1112 mtx_unlock(&lun->lun_lock); 1113 CTL_DEBUG_PRINT(("%s: Known LUN %d, peer is %s\n", 1114 __func__, targ_lun, 1115 (msg->lun.flags & CTL_LUN_PRIMARY_SC) ? 1116 "primary" : "secondary")); 1117 1118 /* If we are primary but peer doesn't know -- notify */ 1119 if ((lun->flags & CTL_LUN_PRIMARY_SC) && 1120 (msg->lun.flags & CTL_LUN_PEER_SC_PRIMARY) == 0) 1121 ctl_isc_announce_lun(lun); 1122 } 1123} 1124 1125static void 1126ctl_isc_port_sync(struct ctl_softc *softc, union ctl_ha_msg *msg, int len) 1127{ 1128 struct ctl_port *port; 1129 struct ctl_lun *lun; 1130 int i, new; 1131 1132 port = softc->ctl_ports[msg->hdr.nexus.targ_port]; 1133 if (port == NULL) { 1134 CTL_DEBUG_PRINT(("%s: New port %d\n", __func__, 1135 msg->hdr.nexus.targ_port)); 1136 new = 1; 1137 port = malloc(sizeof(*port), M_CTL, M_WAITOK | M_ZERO); 1138 port->frontend = &ha_frontend; 1139 port->targ_port = msg->hdr.nexus.targ_port; 1140 port->fe_datamove = ctl_ha_datamove; 1141 port->fe_done = ctl_ha_done; 1142 } else if (port->frontend == &ha_frontend) { 1143 CTL_DEBUG_PRINT(("%s: Updated port %d\n", __func__, 1144 msg->hdr.nexus.targ_port)); 1145 new = 0; 1146 } else { 1147 printf("%s: Received conflicting HA port %d\n", 1148 __func__, msg->hdr.nexus.targ_port); 1149 return; 1150 } 1151 port->port_type = msg->port.port_type; 1152 port->physical_port = msg->port.physical_port; 1153 port->virtual_port = msg->port.virtual_port; 1154 port->status = msg->port.status; 1155 i = 0; 1156 free(port->port_name, M_CTL); 1157 port->port_name = strndup(&msg->port.data[i], msg->port.name_len, 1158 M_CTL); 1159 i += msg->port.name_len; 1160 if (msg->port.lun_map_len != 0) { 1161 if (port->lun_map == NULL || 1162 port->lun_map_size * sizeof(uint32_t) < 1163 msg->port.lun_map_len) { 1164 port->lun_map_size = 0; 1165 free(port->lun_map, M_CTL); 1166 port->lun_map = malloc(msg->port.lun_map_len, 1167 M_CTL, M_WAITOK); 1168 } 1169 memcpy(port->lun_map, &msg->port.data[i], msg->port.lun_map_len); 1170 port->lun_map_size = msg->port.lun_map_len / sizeof(uint32_t); 1171 i += msg->port.lun_map_len; 1172 } else { 1173 port->lun_map_size = 0; 1174 free(port->lun_map, M_CTL); 1175 port->lun_map = NULL; 1176 } 1177 if (msg->port.port_devid_len != 0) { 1178 if (port->port_devid == NULL || 1179 port->port_devid->len < msg->port.port_devid_len) { 1180 free(port->port_devid, M_CTL); 1181 port->port_devid = malloc(sizeof(struct ctl_devid) + 1182 msg->port.port_devid_len, M_CTL, M_WAITOK); 1183 } 1184 memcpy(port->port_devid->data, &msg->port.data[i], 1185 msg->port.port_devid_len); 1186 port->port_devid->len = msg->port.port_devid_len; 1187 i += msg->port.port_devid_len; 1188 } else { 1189 free(port->port_devid, M_CTL); 1190 port->port_devid = NULL; 1191 } 1192 if (msg->port.target_devid_len != 0) { 1193 if (port->target_devid == NULL || 1194 port->target_devid->len < msg->port.target_devid_len) { 1195 free(port->target_devid, M_CTL); 1196 port->target_devid = malloc(sizeof(struct ctl_devid) + 1197 msg->port.target_devid_len, M_CTL, M_WAITOK); 1198 } 1199 memcpy(port->target_devid->data, &msg->port.data[i], 1200 msg->port.target_devid_len); 1201 port->target_devid->len = msg->port.target_devid_len; 1202 i += msg->port.target_devid_len; 1203 } else { 1204 free(port->target_devid, M_CTL); 1205 port->target_devid = NULL; 1206 } 1207 if (msg->port.init_devid_len != 0) { 1208 if (port->init_devid == NULL || 1209 port->init_devid->len < msg->port.init_devid_len) { 1210 free(port->init_devid, M_CTL); 1211 port->init_devid = malloc(sizeof(struct ctl_devid) + 1212 msg->port.init_devid_len, M_CTL, M_WAITOK); 1213 } 1214 memcpy(port->init_devid->data, &msg->port.data[i], 1215 msg->port.init_devid_len); 1216 port->init_devid->len = msg->port.init_devid_len; 1217 i += msg->port.init_devid_len; 1218 } else { 1219 free(port->init_devid, M_CTL); 1220 port->init_devid = NULL; 1221 } 1222 if (new) { 1223 if (ctl_port_register(port) != 0) { 1224 printf("%s: ctl_port_register() failed with error\n", 1225 __func__); 1226 } 1227 } 1228 mtx_lock(&softc->ctl_lock); 1229 STAILQ_FOREACH(lun, &softc->lun_list, links) { 1230 if (ctl_lun_map_to_port(port, lun->lun) == UINT32_MAX) 1231 continue; 1232 mtx_lock(&lun->lun_lock); 1233 ctl_est_ua_all(lun, -1, CTL_UA_INQ_CHANGE); 1234 mtx_unlock(&lun->lun_lock); 1235 } 1236 mtx_unlock(&softc->ctl_lock); 1237} 1238 1239static void 1240ctl_isc_iid_sync(struct ctl_softc *softc, union ctl_ha_msg *msg, int len) 1241{ 1242 struct ctl_port *port; 1243 int iid; 1244 1245 port = softc->ctl_ports[msg->hdr.nexus.targ_port]; 1246 if (port == NULL) { 1247 printf("%s: Received IID for unknown port %d\n", 1248 __func__, msg->hdr.nexus.targ_port); 1249 return; 1250 } 1251 iid = msg->hdr.nexus.initid; 1252 port->wwpn_iid[iid].in_use = msg->iid.in_use; 1253 port->wwpn_iid[iid].wwpn = msg->iid.wwpn; 1254 free(port->wwpn_iid[iid].name, M_CTL); 1255 if (msg->iid.name_len) { 1256 port->wwpn_iid[iid].name = strndup(&msg->iid.data[0], 1257 msg->iid.name_len, M_CTL); 1258 } else 1259 port->wwpn_iid[iid].name = NULL; 1260} 1261 1262static void 1263ctl_isc_login(struct ctl_softc *softc, union ctl_ha_msg *msg, int len) 1264{ 1265 1266 if (msg->login.version != CTL_HA_VERSION) { 1267 printf("CTL HA peers have different versions %d != %d\n", 1268 msg->login.version, CTL_HA_VERSION); 1269 ctl_ha_msg_abort(CTL_HA_CHAN_CTL); 1270 return; 1271 } 1272 if (msg->login.ha_mode != softc->ha_mode) { 1273 printf("CTL HA peers have different ha_mode %d != %d\n", 1274 msg->login.ha_mode, softc->ha_mode); 1275 ctl_ha_msg_abort(CTL_HA_CHAN_CTL); 1276 return; 1277 } 1278 if (msg->login.ha_id == softc->ha_id) { 1279 printf("CTL HA peers have same ha_id %d\n", msg->login.ha_id); 1280 ctl_ha_msg_abort(CTL_HA_CHAN_CTL); 1281 return; 1282 } 1283 if (msg->login.max_luns != CTL_MAX_LUNS || 1284 msg->login.max_ports != CTL_MAX_PORTS || 1285 msg->login.max_init_per_port != CTL_MAX_INIT_PER_PORT) { 1286 printf("CTL HA peers have different limits\n"); 1287 ctl_ha_msg_abort(CTL_HA_CHAN_CTL); 1288 return; 1289 } 1290} 1291 1292static void 1293ctl_isc_mode_sync(struct ctl_softc *softc, union ctl_ha_msg *msg, int len) 1294{ 1295 struct ctl_lun *lun; 1296 u_int i; 1297 uint32_t initidx, targ_lun; 1298 1299 targ_lun = msg->hdr.nexus.targ_mapped_lun; 1300 mtx_lock(&softc->ctl_lock); 1301 if (targ_lun >= CTL_MAX_LUNS || 1302 (lun = softc->ctl_luns[targ_lun]) == NULL) { 1303 mtx_unlock(&softc->ctl_lock); 1304 return; 1305 } 1306 mtx_lock(&lun->lun_lock); 1307 mtx_unlock(&softc->ctl_lock); 1308 if (lun->flags & CTL_LUN_DISABLED) { 1309 mtx_unlock(&lun->lun_lock); 1310 return; 1311 } 1312 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 1313 if ((lun->mode_pages.index[i].page_code & SMPH_PC_MASK) == 1314 msg->mode.page_code && 1315 lun->mode_pages.index[i].subpage == msg->mode.subpage) 1316 break; 1317 } 1318 if (i == CTL_NUM_MODE_PAGES) { 1319 mtx_unlock(&lun->lun_lock); 1320 return; 1321 } 1322 memcpy(lun->mode_pages.index[i].page_data, msg->mode.data, 1323 lun->mode_pages.index[i].page_len); 1324 initidx = ctl_get_initindex(&msg->hdr.nexus); 1325 if (initidx != -1) 1326 ctl_est_ua_all(lun, initidx, CTL_UA_MODE_CHANGE); 1327 mtx_unlock(&lun->lun_lock); 1328} 1329 1330/* 1331 * ISC (Inter Shelf Communication) event handler. Events from the HA 1332 * subsystem come in here. 1333 */ 1334static void 1335ctl_isc_event_handler(ctl_ha_channel channel, ctl_ha_event event, int param) 1336{ 1337 struct ctl_softc *softc = control_softc; 1338 union ctl_io *io; 1339 struct ctl_prio *presio; 1340 ctl_ha_status isc_status; 1341 1342 CTL_DEBUG_PRINT(("CTL: Isc Msg event %d\n", event)); 1343 if (event == CTL_HA_EVT_MSG_RECV) { 1344 union ctl_ha_msg *msg, msgbuf; 1345 1346 if (param > sizeof(msgbuf)) 1347 msg = malloc(param, M_CTL, M_WAITOK); 1348 else 1349 msg = &msgbuf; 1350 isc_status = ctl_ha_msg_recv(CTL_HA_CHAN_CTL, msg, param, 1351 M_WAITOK); 1352 if (isc_status != CTL_HA_STATUS_SUCCESS) { 1353 printf("%s: Error receiving message: %d\n", 1354 __func__, isc_status); 1355 if (msg != &msgbuf) 1356 free(msg, M_CTL); 1357 return; 1358 } 1359 1360 CTL_DEBUG_PRINT(("CTL: msg_type %d\n", msg->msg_type)); 1361 switch (msg->hdr.msg_type) { 1362 case CTL_MSG_SERIALIZE: 1363 io = ctl_alloc_io(softc->othersc_pool); 1364 ctl_zero_io(io); 1365 // populate ctsio from msg 1366 io->io_hdr.io_type = CTL_IO_SCSI; 1367 io->io_hdr.msg_type = CTL_MSG_SERIALIZE; 1368 io->io_hdr.original_sc = msg->hdr.original_sc; 1369 io->io_hdr.flags |= CTL_FLAG_FROM_OTHER_SC | 1370 CTL_FLAG_IO_ACTIVE; 1371 /* 1372 * If we're in serialization-only mode, we don't 1373 * want to go through full done processing. Thus 1374 * the COPY flag. 1375 * 1376 * XXX KDM add another flag that is more specific. 1377 */ 1378 if (softc->ha_mode != CTL_HA_MODE_XFER) 1379 io->io_hdr.flags |= CTL_FLAG_INT_COPY; 1380 io->io_hdr.nexus = msg->hdr.nexus; 1381#if 0 1382 printf("port %u, iid %u, lun %u\n", 1383 io->io_hdr.nexus.targ_port, 1384 io->io_hdr.nexus.initid, 1385 io->io_hdr.nexus.targ_lun); 1386#endif 1387 io->scsiio.tag_num = msg->scsi.tag_num; 1388 io->scsiio.tag_type = msg->scsi.tag_type; 1389#ifdef CTL_TIME_IO 1390 io->io_hdr.start_time = time_uptime; 1391 getbinuptime(&io->io_hdr.start_bt); 1392#endif /* CTL_TIME_IO */ 1393 io->scsiio.cdb_len = msg->scsi.cdb_len; 1394 memcpy(io->scsiio.cdb, msg->scsi.cdb, 1395 CTL_MAX_CDBLEN); 1396 if (softc->ha_mode == CTL_HA_MODE_XFER) { 1397 const struct ctl_cmd_entry *entry; 1398 1399 entry = ctl_get_cmd_entry(&io->scsiio, NULL); 1400 io->io_hdr.flags &= ~CTL_FLAG_DATA_MASK; 1401 io->io_hdr.flags |= 1402 entry->flags & CTL_FLAG_DATA_MASK; 1403 } 1404 ctl_enqueue_isc(io); 1405 break; 1406 1407 /* Performed on the Originating SC, XFER mode only */ 1408 case CTL_MSG_DATAMOVE: { 1409 struct ctl_sg_entry *sgl; 1410 int i, j; 1411 1412 io = msg->hdr.original_sc; 1413 if (io == NULL) { 1414 printf("%s: original_sc == NULL!\n", __func__); 1415 /* XXX KDM do something here */ 1416 break; 1417 } 1418 io->io_hdr.msg_type = CTL_MSG_DATAMOVE; 1419 io->io_hdr.flags |= CTL_FLAG_IO_ACTIVE; 1420 /* 1421 * Keep track of this, we need to send it back over 1422 * when the datamove is complete. 1423 */ 1424 io->io_hdr.serializing_sc = msg->hdr.serializing_sc; 1425 if (msg->hdr.status == CTL_SUCCESS) 1426 io->io_hdr.status = msg->hdr.status; 1427 1428 if (msg->dt.sg_sequence == 0) { 1429#ifdef CTL_TIME_IO 1430 getbinuptime(&io->io_hdr.dma_start_bt); 1431#endif 1432 i = msg->dt.kern_sg_entries + 1433 msg->dt.kern_data_len / 1434 CTL_HA_DATAMOVE_SEGMENT + 1; 1435 sgl = malloc(sizeof(*sgl) * i, M_CTL, 1436 M_WAITOK | M_ZERO); 1437 io->io_hdr.remote_sglist = sgl; 1438 io->io_hdr.local_sglist = 1439 &sgl[msg->dt.kern_sg_entries]; 1440 1441 io->scsiio.kern_data_ptr = (uint8_t *)sgl; 1442 1443 io->scsiio.kern_sg_entries = 1444 msg->dt.kern_sg_entries; 1445 io->scsiio.rem_sg_entries = 1446 msg->dt.kern_sg_entries; 1447 io->scsiio.kern_data_len = 1448 msg->dt.kern_data_len; 1449 io->scsiio.kern_total_len = 1450 msg->dt.kern_total_len; 1451 io->scsiio.kern_data_resid = 1452 msg->dt.kern_data_resid; 1453 io->scsiio.kern_rel_offset = 1454 msg->dt.kern_rel_offset; 1455 io->io_hdr.flags &= ~CTL_FLAG_BUS_ADDR; 1456 io->io_hdr.flags |= msg->dt.flags & 1457 CTL_FLAG_BUS_ADDR; 1458 } else 1459 sgl = (struct ctl_sg_entry *) 1460 io->scsiio.kern_data_ptr; 1461 1462 for (i = msg->dt.sent_sg_entries, j = 0; 1463 i < (msg->dt.sent_sg_entries + 1464 msg->dt.cur_sg_entries); i++, j++) { 1465 sgl[i].addr = msg->dt.sg_list[j].addr; 1466 sgl[i].len = msg->dt.sg_list[j].len; 1467 1468#if 0 1469 printf("%s: DATAMOVE: %p,%lu j=%d, i=%d\n", 1470 __func__, sgl[i].addr, sgl[i].len, j, i); 1471#endif 1472 } 1473 1474 /* 1475 * If this is the last piece of the I/O, we've got 1476 * the full S/G list. Queue processing in the thread. 1477 * Otherwise wait for the next piece. 1478 */ 1479 if (msg->dt.sg_last != 0) 1480 ctl_enqueue_isc(io); 1481 break; 1482 } 1483 /* Performed on the Serializing (primary) SC, XFER mode only */ 1484 case CTL_MSG_DATAMOVE_DONE: { 1485 if (msg->hdr.serializing_sc == NULL) { 1486 printf("%s: serializing_sc == NULL!\n", 1487 __func__); 1488 /* XXX KDM now what? */ 1489 break; 1490 } 1491 /* 1492 * We grab the sense information here in case 1493 * there was a failure, so we can return status 1494 * back to the initiator. 1495 */ 1496 io = msg->hdr.serializing_sc; 1497 io->io_hdr.msg_type = CTL_MSG_DATAMOVE_DONE; 1498 io->io_hdr.flags &= ~CTL_FLAG_DMA_INPROG; 1499 io->io_hdr.flags |= CTL_FLAG_IO_ACTIVE; 1500 io->io_hdr.port_status = msg->scsi.fetd_status; 1501 io->scsiio.residual = msg->scsi.residual; 1502 if (msg->hdr.status != CTL_STATUS_NONE) { 1503 io->io_hdr.status = msg->hdr.status; 1504 io->scsiio.scsi_status = msg->scsi.scsi_status; 1505 io->scsiio.sense_len = msg->scsi.sense_len; 1506 io->scsiio.sense_residual =msg->scsi.sense_residual; 1507 memcpy(&io->scsiio.sense_data, 1508 &msg->scsi.sense_data, 1509 msg->scsi.sense_len); 1510 if (msg->hdr.status == CTL_SUCCESS) 1511 io->io_hdr.flags |= CTL_FLAG_STATUS_SENT; 1512 } 1513 ctl_enqueue_isc(io); 1514 break; 1515 } 1516 1517 /* Preformed on Originating SC, SER_ONLY mode */ 1518 case CTL_MSG_R2R: 1519 io = msg->hdr.original_sc; 1520 if (io == NULL) { 1521 printf("%s: original_sc == NULL!\n", 1522 __func__); 1523 break; 1524 } 1525 io->io_hdr.flags |= CTL_FLAG_IO_ACTIVE; 1526 io->io_hdr.msg_type = CTL_MSG_R2R; 1527 io->io_hdr.serializing_sc = msg->hdr.serializing_sc; 1528 ctl_enqueue_isc(io); 1529 break; 1530 1531 /* 1532 * Performed on Serializing(i.e. primary SC) SC in SER_ONLY 1533 * mode. 1534 * Performed on the Originating (i.e. secondary) SC in XFER 1535 * mode 1536 */ 1537 case CTL_MSG_FINISH_IO: 1538 if (softc->ha_mode == CTL_HA_MODE_XFER) 1539 ctl_isc_handler_finish_xfer(softc, msg); 1540 else 1541 ctl_isc_handler_finish_ser_only(softc, msg); 1542 break; 1543 1544 /* Preformed on Originating SC */ 1545 case CTL_MSG_BAD_JUJU: 1546 io = msg->hdr.original_sc; 1547 if (io == NULL) { 1548 printf("%s: Bad JUJU!, original_sc is NULL!\n", 1549 __func__); 1550 break; 1551 } 1552 ctl_copy_sense_data(msg, io); 1553 /* 1554 * IO should have already been cleaned up on other 1555 * SC so clear this flag so we won't send a message 1556 * back to finish the IO there. 1557 */ 1558 io->io_hdr.flags &= ~CTL_FLAG_SENT_2OTHER_SC; 1559 io->io_hdr.flags |= CTL_FLAG_IO_ACTIVE; 1560 1561 /* io = msg->hdr.serializing_sc; */ 1562 io->io_hdr.msg_type = CTL_MSG_BAD_JUJU; 1563 ctl_enqueue_isc(io); 1564 break; 1565 1566 /* Handle resets sent from the other side */ 1567 case CTL_MSG_MANAGE_TASKS: { 1568 struct ctl_taskio *taskio; 1569 taskio = (struct ctl_taskio *)ctl_alloc_io( 1570 softc->othersc_pool); 1571 ctl_zero_io((union ctl_io *)taskio); 1572 taskio->io_hdr.io_type = CTL_IO_TASK; 1573 taskio->io_hdr.flags |= CTL_FLAG_FROM_OTHER_SC; 1574 taskio->io_hdr.nexus = msg->hdr.nexus; 1575 taskio->task_action = msg->task.task_action; 1576 taskio->tag_num = msg->task.tag_num; 1577 taskio->tag_type = msg->task.tag_type; 1578#ifdef CTL_TIME_IO 1579 taskio->io_hdr.start_time = time_uptime; 1580 getbinuptime(&taskio->io_hdr.start_bt); 1581#endif /* CTL_TIME_IO */ 1582 ctl_run_task((union ctl_io *)taskio); 1583 break; 1584 } 1585 /* Persistent Reserve action which needs attention */ 1586 case CTL_MSG_PERS_ACTION: 1587 presio = (struct ctl_prio *)ctl_alloc_io( 1588 softc->othersc_pool); 1589 ctl_zero_io((union ctl_io *)presio); 1590 presio->io_hdr.msg_type = CTL_MSG_PERS_ACTION; 1591 presio->io_hdr.flags |= CTL_FLAG_FROM_OTHER_SC; 1592 presio->io_hdr.nexus = msg->hdr.nexus; 1593 presio->pr_msg = msg->pr; 1594 ctl_enqueue_isc((union ctl_io *)presio); 1595 break; 1596 case CTL_MSG_UA: 1597 ctl_isc_ua(softc, msg, param); 1598 break; 1599 case CTL_MSG_PORT_SYNC: 1600 ctl_isc_port_sync(softc, msg, param); 1601 break; 1602 case CTL_MSG_LUN_SYNC: 1603 ctl_isc_lun_sync(softc, msg, param); 1604 break; 1605 case CTL_MSG_IID_SYNC: 1606 ctl_isc_iid_sync(softc, msg, param); 1607 break; 1608 case CTL_MSG_LOGIN: 1609 ctl_isc_login(softc, msg, param); 1610 break; 1611 case CTL_MSG_MODE_SYNC: 1612 ctl_isc_mode_sync(softc, msg, param); 1613 break; 1614 default: 1615 printf("Received HA message of unknown type %d\n", 1616 msg->hdr.msg_type); 1617 ctl_ha_msg_abort(CTL_HA_CHAN_CTL); 1618 break; 1619 } 1620 if (msg != &msgbuf) 1621 free(msg, M_CTL); 1622 } else if (event == CTL_HA_EVT_LINK_CHANGE) { 1623 printf("CTL: HA link status changed from %d to %d\n", 1624 softc->ha_link, param); 1625 if (param == softc->ha_link) 1626 return; 1627 if (softc->ha_link == CTL_HA_LINK_ONLINE) { 1628 softc->ha_link = param; 1629 ctl_isc_ha_link_down(softc); 1630 } else { 1631 softc->ha_link = param; 1632 if (softc->ha_link == CTL_HA_LINK_ONLINE) 1633 ctl_isc_ha_link_up(softc); 1634 } 1635 return; 1636 } else { 1637 printf("ctl_isc_event_handler: Unknown event %d\n", event); 1638 return; 1639 } 1640} 1641 1642static void 1643ctl_copy_sense_data(union ctl_ha_msg *src, union ctl_io *dest) 1644{ 1645 1646 memcpy(&dest->scsiio.sense_data, &src->scsi.sense_data, 1647 src->scsi.sense_len); 1648 dest->scsiio.scsi_status = src->scsi.scsi_status; 1649 dest->scsiio.sense_len = src->scsi.sense_len; 1650 dest->io_hdr.status = src->hdr.status; 1651} 1652 1653static void 1654ctl_copy_sense_data_back(union ctl_io *src, union ctl_ha_msg *dest) 1655{ 1656 1657 memcpy(&dest->scsi.sense_data, &src->scsiio.sense_data, 1658 src->scsiio.sense_len); 1659 dest->scsi.scsi_status = src->scsiio.scsi_status; 1660 dest->scsi.sense_len = src->scsiio.sense_len; 1661 dest->hdr.status = src->io_hdr.status; 1662} 1663 1664void 1665ctl_est_ua(struct ctl_lun *lun, uint32_t initidx, ctl_ua_type ua) 1666{ 1667 struct ctl_softc *softc = lun->ctl_softc; 1668 ctl_ua_type *pu; 1669 1670 if (initidx < softc->init_min || initidx >= softc->init_max) 1671 return; 1672 mtx_assert(&lun->lun_lock, MA_OWNED); 1673 pu = lun->pending_ua[initidx / CTL_MAX_INIT_PER_PORT]; 1674 if (pu == NULL) 1675 return; 1676 pu[initidx % CTL_MAX_INIT_PER_PORT] |= ua; 1677} 1678 1679void 1680ctl_est_ua_port(struct ctl_lun *lun, int port, uint32_t except, ctl_ua_type ua) 1681{ 1682 int i; 1683 1684 mtx_assert(&lun->lun_lock, MA_OWNED); 1685 if (lun->pending_ua[port] == NULL) 1686 return; 1687 for (i = 0; i < CTL_MAX_INIT_PER_PORT; i++) { 1688 if (port * CTL_MAX_INIT_PER_PORT + i == except) 1689 continue; 1690 lun->pending_ua[port][i] |= ua; 1691 } 1692} 1693 1694void 1695ctl_est_ua_all(struct ctl_lun *lun, uint32_t except, ctl_ua_type ua) 1696{ 1697 struct ctl_softc *softc = lun->ctl_softc; 1698 int i; 1699 1700 mtx_assert(&lun->lun_lock, MA_OWNED); 1701 for (i = softc->port_min; i < softc->port_max; i++) 1702 ctl_est_ua_port(lun, i, except, ua); 1703} 1704 1705void 1706ctl_clr_ua(struct ctl_lun *lun, uint32_t initidx, ctl_ua_type ua) 1707{ 1708 struct ctl_softc *softc = lun->ctl_softc; 1709 ctl_ua_type *pu; 1710 1711 if (initidx < softc->init_min || initidx >= softc->init_max) 1712 return; 1713 mtx_assert(&lun->lun_lock, MA_OWNED); 1714 pu = lun->pending_ua[initidx / CTL_MAX_INIT_PER_PORT]; 1715 if (pu == NULL) 1716 return; 1717 pu[initidx % CTL_MAX_INIT_PER_PORT] &= ~ua; 1718} 1719 1720void 1721ctl_clr_ua_all(struct ctl_lun *lun, uint32_t except, ctl_ua_type ua) 1722{ 1723 struct ctl_softc *softc = lun->ctl_softc; 1724 int i, j; 1725 1726 mtx_assert(&lun->lun_lock, MA_OWNED); 1727 for (i = softc->port_min; i < softc->port_max; i++) { 1728 if (lun->pending_ua[i] == NULL) 1729 continue; 1730 for (j = 0; j < CTL_MAX_INIT_PER_PORT; j++) { 1731 if (i * CTL_MAX_INIT_PER_PORT + j == except) 1732 continue; 1733 lun->pending_ua[i][j] &= ~ua; 1734 } 1735 } 1736} 1737 1738void 1739ctl_clr_ua_allluns(struct ctl_softc *ctl_softc, uint32_t initidx, 1740 ctl_ua_type ua_type) 1741{ 1742 struct ctl_lun *lun; 1743 1744 mtx_assert(&ctl_softc->ctl_lock, MA_OWNED); 1745 STAILQ_FOREACH(lun, &ctl_softc->lun_list, links) { 1746 mtx_lock(&lun->lun_lock); 1747 ctl_clr_ua(lun, initidx, ua_type); 1748 mtx_unlock(&lun->lun_lock); 1749 } 1750} 1751 1752static int 1753ctl_ha_role_sysctl(SYSCTL_HANDLER_ARGS) 1754{ 1755 struct ctl_softc *softc = (struct ctl_softc *)arg1; 1756 struct ctl_lun *lun; 1757 struct ctl_lun_req ireq; 1758 int error, value; 1759 1760 value = (softc->flags & CTL_FLAG_ACTIVE_SHELF) ? 0 : 1; 1761 error = sysctl_handle_int(oidp, &value, 0, req); 1762 if ((error != 0) || (req->newptr == NULL)) 1763 return (error); 1764 1765 mtx_lock(&softc->ctl_lock); 1766 if (value == 0) 1767 softc->flags |= CTL_FLAG_ACTIVE_SHELF; 1768 else 1769 softc->flags &= ~CTL_FLAG_ACTIVE_SHELF; 1770 STAILQ_FOREACH(lun, &softc->lun_list, links) { 1771 mtx_unlock(&softc->ctl_lock); 1772 bzero(&ireq, sizeof(ireq)); 1773 ireq.reqtype = CTL_LUNREQ_MODIFY; 1774 ireq.reqdata.modify.lun_id = lun->lun; 1775 lun->backend->ioctl(NULL, CTL_LUN_REQ, (caddr_t)&ireq, 0, 1776 curthread); 1777 if (ireq.status != CTL_LUN_OK) { 1778 printf("%s: CTL_LUNREQ_MODIFY returned %d '%s'\n", 1779 __func__, ireq.status, ireq.error_str); 1780 } 1781 mtx_lock(&softc->ctl_lock); 1782 } 1783 mtx_unlock(&softc->ctl_lock); 1784 return (0); 1785} 1786 1787static int 1788ctl_init(void) 1789{ 1790 struct make_dev_args args; 1791 struct ctl_softc *softc; 1792 void *other_pool; 1793 int i, error; 1794 1795 softc = control_softc = malloc(sizeof(*control_softc), M_DEVBUF, 1796 M_WAITOK | M_ZERO); 1797 1798 make_dev_args_init(&args); 1799 args.mda_devsw = &ctl_cdevsw; 1800 args.mda_uid = UID_ROOT; 1801 args.mda_gid = GID_OPERATOR; 1802 args.mda_mode = 0600; 1803 args.mda_si_drv1 = softc; 1804 error = make_dev_s(&args, &softc->dev, "cam/ctl"); 1805 if (error != 0) { 1806 free(softc, M_DEVBUF); 1807 control_softc = NULL; 1808 return (error); 1809 } 1810 1811 sysctl_ctx_init(&softc->sysctl_ctx); 1812 softc->sysctl_tree = SYSCTL_ADD_NODE(&softc->sysctl_ctx, 1813 SYSCTL_STATIC_CHILDREN(_kern_cam), OID_AUTO, "ctl", 1814 CTLFLAG_RD, 0, "CAM Target Layer"); 1815 1816 if (softc->sysctl_tree == NULL) { 1817 printf("%s: unable to allocate sysctl tree\n", __func__); 1818 destroy_dev(softc->dev); 1819 free(softc, M_DEVBUF); 1820 control_softc = NULL; 1821 return (ENOMEM); 1822 } 1823 1824 mtx_init(&softc->ctl_lock, "CTL mutex", NULL, MTX_DEF); 1825 softc->io_zone = uma_zcreate("CTL IO", sizeof(union ctl_io), 1826 NULL, NULL, NULL, NULL, UMA_ALIGN_PTR, 0); 1827 softc->flags = 0; 1828 1829 TUNABLE_INT_FETCH("kern.cam.ctl.ha_mode", (int *)&softc->ha_mode); 1830 SYSCTL_ADD_INT(&softc->sysctl_ctx, SYSCTL_CHILDREN(softc->sysctl_tree), 1831 OID_AUTO, "ha_mode", CTLFLAG_RDTUN, (int *)&softc->ha_mode, 0, 1832 "HA mode (0 - act/stby, 1 - serialize only, 2 - xfer)"); 1833 1834 /* 1835 * In Copan's HA scheme, the "master" and "slave" roles are 1836 * figured out through the slot the controller is in. Although it 1837 * is an active/active system, someone has to be in charge. 1838 */ 1839 TUNABLE_INT_FETCH("kern.cam.ctl.ha_id", &softc->ha_id); 1840 SYSCTL_ADD_INT(&softc->sysctl_ctx, SYSCTL_CHILDREN(softc->sysctl_tree), 1841 OID_AUTO, "ha_id", CTLFLAG_RDTUN, &softc->ha_id, 0, 1842 "HA head ID (0 - no HA)"); 1843 if (softc->ha_id == 0 || softc->ha_id > NUM_HA_SHELVES) { 1844 softc->flags |= CTL_FLAG_ACTIVE_SHELF; 1845 softc->is_single = 1; 1846 softc->port_cnt = CTL_MAX_PORTS; 1847 softc->port_min = 0; 1848 } else { 1849 softc->port_cnt = CTL_MAX_PORTS / NUM_HA_SHELVES; 1850 softc->port_min = (softc->ha_id - 1) * softc->port_cnt; 1851 } 1852 softc->port_max = softc->port_min + softc->port_cnt; 1853 softc->init_min = softc->port_min * CTL_MAX_INIT_PER_PORT; 1854 softc->init_max = softc->port_max * CTL_MAX_INIT_PER_PORT; 1855 1856 SYSCTL_ADD_INT(&softc->sysctl_ctx, SYSCTL_CHILDREN(softc->sysctl_tree), 1857 OID_AUTO, "ha_link", CTLFLAG_RD, (int *)&softc->ha_link, 0, 1858 "HA link state (0 - offline, 1 - unknown, 2 - online)"); 1859 1860 STAILQ_INIT(&softc->lun_list); 1861 STAILQ_INIT(&softc->pending_lun_queue); 1862 STAILQ_INIT(&softc->fe_list); 1863 STAILQ_INIT(&softc->port_list); 1864 STAILQ_INIT(&softc->be_list); 1865 ctl_tpc_init(softc); 1866 1867 if (ctl_pool_create(softc, "othersc", CTL_POOL_ENTRIES_OTHER_SC, 1868 &other_pool) != 0) 1869 { 1870 printf("ctl: can't allocate %d entry other SC pool, " 1871 "exiting\n", CTL_POOL_ENTRIES_OTHER_SC); 1872 return (ENOMEM); 1873 } 1874 softc->othersc_pool = other_pool; 1875 1876 if (worker_threads <= 0) 1877 worker_threads = max(1, mp_ncpus / 4); 1878 if (worker_threads > CTL_MAX_THREADS) 1879 worker_threads = CTL_MAX_THREADS; 1880 1881 for (i = 0; i < worker_threads; i++) { 1882 struct ctl_thread *thr = &softc->threads[i]; 1883 1884 mtx_init(&thr->queue_lock, "CTL queue mutex", NULL, MTX_DEF); 1885 thr->ctl_softc = softc; 1886 STAILQ_INIT(&thr->incoming_queue); 1887 STAILQ_INIT(&thr->rtr_queue); 1888 STAILQ_INIT(&thr->done_queue); 1889 STAILQ_INIT(&thr->isc_queue); 1890 1891 error = kproc_kthread_add(ctl_work_thread, thr, 1892 &softc->ctl_proc, &thr->thread, 0, 0, "ctl", "work%d", i); 1893 if (error != 0) { 1894 printf("error creating CTL work thread!\n"); 1895 ctl_pool_free(other_pool); 1896 return (error); 1897 } 1898 } 1899 error = kproc_kthread_add(ctl_lun_thread, softc, 1900 &softc->ctl_proc, NULL, 0, 0, "ctl", "lun"); 1901 if (error != 0) { 1902 printf("error creating CTL lun thread!\n"); 1903 ctl_pool_free(other_pool); 1904 return (error); 1905 } 1906 error = kproc_kthread_add(ctl_thresh_thread, softc, 1907 &softc->ctl_proc, NULL, 0, 0, "ctl", "thresh"); 1908 if (error != 0) { 1909 printf("error creating CTL threshold thread!\n"); 1910 ctl_pool_free(other_pool); 1911 return (error); 1912 } 1913 1914 SYSCTL_ADD_PROC(&softc->sysctl_ctx,SYSCTL_CHILDREN(softc->sysctl_tree), 1915 OID_AUTO, "ha_role", CTLTYPE_INT | CTLFLAG_RWTUN, 1916 softc, 0, ctl_ha_role_sysctl, "I", "HA role for this head"); 1917 1918 if (softc->is_single == 0) { 1919 ctl_frontend_register(&ha_frontend); 1920 if (ctl_ha_msg_init(softc) != CTL_HA_STATUS_SUCCESS) { 1921 printf("ctl_init: ctl_ha_msg_init failed.\n"); 1922 softc->is_single = 1; 1923 } else 1924 if (ctl_ha_msg_register(CTL_HA_CHAN_CTL, ctl_isc_event_handler) 1925 != CTL_HA_STATUS_SUCCESS) { 1926 printf("ctl_init: ctl_ha_msg_register failed.\n"); 1927 softc->is_single = 1; 1928 } 1929 } 1930 return (0); 1931} 1932 1933void 1934ctl_shutdown(void) 1935{ 1936 struct ctl_softc *softc = control_softc; 1937 struct ctl_lun *lun, *next_lun; 1938 1939 if (softc->is_single == 0) { 1940 ctl_ha_msg_shutdown(softc); 1941 if (ctl_ha_msg_deregister(CTL_HA_CHAN_CTL) 1942 != CTL_HA_STATUS_SUCCESS) 1943 printf("%s: ctl_ha_msg_deregister failed.\n", __func__); 1944 if (ctl_ha_msg_destroy(softc) != CTL_HA_STATUS_SUCCESS) 1945 printf("%s: ctl_ha_msg_destroy failed.\n", __func__); 1946 ctl_frontend_deregister(&ha_frontend); 1947 } 1948 1949 mtx_lock(&softc->ctl_lock); 1950 1951 STAILQ_FOREACH_SAFE(lun, &softc->lun_list, links, next_lun) 1952 ctl_free_lun(lun); 1953 1954 mtx_unlock(&softc->ctl_lock); 1955 1956#if 0 1957 ctl_shutdown_thread(softc->work_thread); 1958 mtx_destroy(&softc->queue_lock); 1959#endif 1960 1961 ctl_tpc_shutdown(softc); 1962 uma_zdestroy(softc->io_zone); 1963 mtx_destroy(&softc->ctl_lock); 1964 1965 destroy_dev(softc->dev); 1966 1967 sysctl_ctx_free(&softc->sysctl_ctx); 1968 1969 free(softc, M_DEVBUF); 1970 control_softc = NULL; 1971} 1972 1973static int 1974ctl_module_event_handler(module_t mod, int what, void *arg) 1975{ 1976 1977 switch (what) { 1978 case MOD_LOAD: 1979 return (ctl_init()); 1980 case MOD_UNLOAD: 1981 return (EBUSY); 1982 default: 1983 return (EOPNOTSUPP); 1984 } 1985} 1986 1987/* 1988 * XXX KDM should we do some access checks here? Bump a reference count to 1989 * prevent a CTL module from being unloaded while someone has it open? 1990 */ 1991static int 1992ctl_open(struct cdev *dev, int flags, int fmt, struct thread *td) 1993{ 1994 return (0); 1995} 1996 1997static int 1998ctl_close(struct cdev *dev, int flags, int fmt, struct thread *td) 1999{ 2000 return (0); 2001} 2002 2003/* 2004 * Remove an initiator by port number and initiator ID. 2005 * Returns 0 for success, -1 for failure. 2006 */ 2007int 2008ctl_remove_initiator(struct ctl_port *port, int iid) 2009{ 2010 struct ctl_softc *softc = port->ctl_softc; 2011 2012 mtx_assert(&softc->ctl_lock, MA_NOTOWNED); 2013 2014 if (iid > CTL_MAX_INIT_PER_PORT) { 2015 printf("%s: initiator ID %u > maximun %u!\n", 2016 __func__, iid, CTL_MAX_INIT_PER_PORT); 2017 return (-1); 2018 } 2019 2020 mtx_lock(&softc->ctl_lock); 2021 port->wwpn_iid[iid].in_use--; 2022 port->wwpn_iid[iid].last_use = time_uptime; 2023 mtx_unlock(&softc->ctl_lock); 2024 ctl_isc_announce_iid(port, iid); 2025 2026 return (0); 2027} 2028 2029/* 2030 * Add an initiator to the initiator map. 2031 * Returns iid for success, < 0 for failure. 2032 */ 2033int 2034ctl_add_initiator(struct ctl_port *port, int iid, uint64_t wwpn, char *name) 2035{ 2036 struct ctl_softc *softc = port->ctl_softc; 2037 time_t best_time; 2038 int i, best; 2039 2040 mtx_assert(&softc->ctl_lock, MA_NOTOWNED); 2041 2042 if (iid >= CTL_MAX_INIT_PER_PORT) { 2043 printf("%s: WWPN %#jx initiator ID %u > maximum %u!\n", 2044 __func__, wwpn, iid, CTL_MAX_INIT_PER_PORT); 2045 free(name, M_CTL); 2046 return (-1); 2047 } 2048 2049 mtx_lock(&softc->ctl_lock); 2050 2051 if (iid < 0 && (wwpn != 0 || name != NULL)) { 2052 for (i = 0; i < CTL_MAX_INIT_PER_PORT; i++) { 2053 if (wwpn != 0 && wwpn == port->wwpn_iid[i].wwpn) { 2054 iid = i; 2055 break; 2056 } 2057 if (name != NULL && port->wwpn_iid[i].name != NULL && 2058 strcmp(name, port->wwpn_iid[i].name) == 0) { 2059 iid = i; 2060 break; 2061 } 2062 } 2063 } 2064 2065 if (iid < 0) { 2066 for (i = 0; i < CTL_MAX_INIT_PER_PORT; i++) { 2067 if (port->wwpn_iid[i].in_use == 0 && 2068 port->wwpn_iid[i].wwpn == 0 && 2069 port->wwpn_iid[i].name == NULL) { 2070 iid = i; 2071 break; 2072 } 2073 } 2074 } 2075 2076 if (iid < 0) { 2077 best = -1; 2078 best_time = INT32_MAX; 2079 for (i = 0; i < CTL_MAX_INIT_PER_PORT; i++) { 2080 if (port->wwpn_iid[i].in_use == 0) { 2081 if (port->wwpn_iid[i].last_use < best_time) { 2082 best = i; 2083 best_time = port->wwpn_iid[i].last_use; 2084 } 2085 } 2086 } 2087 iid = best; 2088 } 2089 2090 if (iid < 0) { 2091 mtx_unlock(&softc->ctl_lock); 2092 free(name, M_CTL); 2093 return (-2); 2094 } 2095 2096 if (port->wwpn_iid[iid].in_use > 0 && (wwpn != 0 || name != NULL)) { 2097 /* 2098 * This is not an error yet. 2099 */ 2100 if (wwpn != 0 && wwpn == port->wwpn_iid[iid].wwpn) { 2101#if 0 2102 printf("%s: port %d iid %u WWPN %#jx arrived" 2103 " again\n", __func__, port->targ_port, 2104 iid, (uintmax_t)wwpn); 2105#endif 2106 goto take; 2107 } 2108 if (name != NULL && port->wwpn_iid[iid].name != NULL && 2109 strcmp(name, port->wwpn_iid[iid].name) == 0) { 2110#if 0 2111 printf("%s: port %d iid %u name '%s' arrived" 2112 " again\n", __func__, port->targ_port, 2113 iid, name); 2114#endif 2115 goto take; 2116 } 2117 2118 /* 2119 * This is an error, but what do we do about it? The 2120 * driver is telling us we have a new WWPN for this 2121 * initiator ID, so we pretty much need to use it. 2122 */ 2123 printf("%s: port %d iid %u WWPN %#jx '%s' arrived," 2124 " but WWPN %#jx '%s' is still at that address\n", 2125 __func__, port->targ_port, iid, wwpn, name, 2126 (uintmax_t)port->wwpn_iid[iid].wwpn, 2127 port->wwpn_iid[iid].name); 2128 2129 /* 2130 * XXX KDM clear have_ca and ua_pending on each LUN for 2131 * this initiator. 2132 */ 2133 } 2134take: 2135 free(port->wwpn_iid[iid].name, M_CTL); 2136 port->wwpn_iid[iid].name = name; 2137 port->wwpn_iid[iid].wwpn = wwpn; 2138 port->wwpn_iid[iid].in_use++; 2139 mtx_unlock(&softc->ctl_lock); 2140 ctl_isc_announce_iid(port, iid); 2141 2142 return (iid); 2143} 2144 2145static int 2146ctl_create_iid(struct ctl_port *port, int iid, uint8_t *buf) 2147{ 2148 int len; 2149 2150 switch (port->port_type) { 2151 case CTL_PORT_FC: 2152 { 2153 struct scsi_transportid_fcp *id = 2154 (struct scsi_transportid_fcp *)buf; 2155 if (port->wwpn_iid[iid].wwpn == 0) 2156 return (0); 2157 memset(id, 0, sizeof(*id)); 2158 id->format_protocol = SCSI_PROTO_FC; 2159 scsi_u64to8b(port->wwpn_iid[iid].wwpn, id->n_port_name); 2160 return (sizeof(*id)); 2161 } 2162 case CTL_PORT_ISCSI: 2163 { 2164 struct scsi_transportid_iscsi_port *id = 2165 (struct scsi_transportid_iscsi_port *)buf; 2166 if (port->wwpn_iid[iid].name == NULL) 2167 return (0); 2168 memset(id, 0, 256); 2169 id->format_protocol = SCSI_TRN_ISCSI_FORMAT_PORT | 2170 SCSI_PROTO_ISCSI; 2171 len = strlcpy(id->iscsi_name, port->wwpn_iid[iid].name, 252) + 1; 2172 len = roundup2(min(len, 252), 4); 2173 scsi_ulto2b(len, id->additional_length); 2174 return (sizeof(*id) + len); 2175 } 2176 case CTL_PORT_SAS: 2177 { 2178 struct scsi_transportid_sas *id = 2179 (struct scsi_transportid_sas *)buf; 2180 if (port->wwpn_iid[iid].wwpn == 0) 2181 return (0); 2182 memset(id, 0, sizeof(*id)); 2183 id->format_protocol = SCSI_PROTO_SAS; 2184 scsi_u64to8b(port->wwpn_iid[iid].wwpn, id->sas_address); 2185 return (sizeof(*id)); 2186 } 2187 default: 2188 { 2189 struct scsi_transportid_spi *id = 2190 (struct scsi_transportid_spi *)buf; 2191 memset(id, 0, sizeof(*id)); 2192 id->format_protocol = SCSI_PROTO_SPI; 2193 scsi_ulto2b(iid, id->scsi_addr); 2194 scsi_ulto2b(port->targ_port, id->rel_trgt_port_id); 2195 return (sizeof(*id)); 2196 } 2197 } 2198} 2199 2200/* 2201 * Serialize a command that went down the "wrong" side, and so was sent to 2202 * this controller for execution. The logic is a little different than the 2203 * standard case in ctl_scsiio_precheck(). Errors in this case need to get 2204 * sent back to the other side, but in the success case, we execute the 2205 * command on this side (XFER mode) or tell the other side to execute it 2206 * (SER_ONLY mode). 2207 */ 2208static void 2209ctl_serialize_other_sc_cmd(struct ctl_scsiio *ctsio) 2210{ 2211 struct ctl_softc *softc = CTL_SOFTC(ctsio); 2212 struct ctl_port *port = CTL_PORT(ctsio); 2213 union ctl_ha_msg msg_info; 2214 struct ctl_lun *lun; 2215 const struct ctl_cmd_entry *entry; 2216 uint32_t targ_lun; 2217 2218 targ_lun = ctsio->io_hdr.nexus.targ_mapped_lun; 2219 2220 /* Make sure that we know about this port. */ 2221 if (port == NULL || (port->status & CTL_PORT_STATUS_ONLINE) == 0) { 2222 ctl_set_internal_failure(ctsio, /*sks_valid*/ 0, 2223 /*retry_count*/ 1); 2224 goto badjuju; 2225 } 2226 2227 /* Make sure that we know about this LUN. */ 2228 mtx_lock(&softc->ctl_lock); 2229 if (targ_lun >= CTL_MAX_LUNS || 2230 (lun = softc->ctl_luns[targ_lun]) == NULL) { 2231 mtx_unlock(&softc->ctl_lock); 2232 2233 /* 2234 * The other node would not send this request to us unless 2235 * received announce that we are primary node for this LUN. 2236 * If this LUN does not exist now, it is probably result of 2237 * a race, so respond to initiator in the most opaque way. 2238 */ 2239 ctl_set_busy(ctsio); 2240 goto badjuju; 2241 } 2242 mtx_lock(&lun->lun_lock); 2243 mtx_unlock(&softc->ctl_lock); 2244 2245 /* 2246 * If the LUN is invalid, pretend that it doesn't exist. 2247 * It will go away as soon as all pending I/Os completed. 2248 */ 2249 if (lun->flags & CTL_LUN_DISABLED) { 2250 mtx_unlock(&lun->lun_lock); 2251 ctl_set_busy(ctsio); 2252 goto badjuju; 2253 } 2254 2255 entry = ctl_get_cmd_entry(ctsio, NULL); 2256 if (ctl_scsiio_lun_check(lun, entry, ctsio) != 0) { 2257 mtx_unlock(&lun->lun_lock); 2258 goto badjuju; 2259 } 2260 2261 CTL_LUN(ctsio) = lun; 2262 CTL_BACKEND_LUN(ctsio) = lun->be_lun; 2263 2264 /* 2265 * Every I/O goes into the OOA queue for a 2266 * particular LUN, and stays there until completion. 2267 */ 2268#ifdef CTL_TIME_IO 2269 if (TAILQ_EMPTY(&lun->ooa_queue)) 2270 lun->idle_time += getsbinuptime() - lun->last_busy; 2271#endif 2272 TAILQ_INSERT_TAIL(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 2273 2274 switch (ctl_check_ooa(lun, (union ctl_io *)ctsio, 2275 (union ctl_io *)TAILQ_PREV(&ctsio->io_hdr, ctl_ooaq, 2276 ooa_links))) { 2277 case CTL_ACTION_BLOCK: 2278 ctsio->io_hdr.flags |= CTL_FLAG_BLOCKED; 2279 TAILQ_INSERT_TAIL(&lun->blocked_queue, &ctsio->io_hdr, 2280 blocked_links); 2281 mtx_unlock(&lun->lun_lock); 2282 break; 2283 case CTL_ACTION_PASS: 2284 case CTL_ACTION_SKIP: 2285 if (softc->ha_mode == CTL_HA_MODE_XFER) { 2286 ctsio->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 2287 ctl_enqueue_rtr((union ctl_io *)ctsio); 2288 mtx_unlock(&lun->lun_lock); 2289 } else { 2290 ctsio->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 2291 mtx_unlock(&lun->lun_lock); 2292 2293 /* send msg back to other side */ 2294 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 2295 msg_info.hdr.serializing_sc = (union ctl_io *)ctsio; 2296 msg_info.hdr.msg_type = CTL_MSG_R2R; 2297 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 2298 sizeof(msg_info.hdr), M_WAITOK); 2299 } 2300 break; 2301 case CTL_ACTION_OVERLAP: 2302 TAILQ_REMOVE(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 2303 mtx_unlock(&lun->lun_lock); 2304 ctl_set_overlapped_cmd(ctsio); 2305 goto badjuju; 2306 case CTL_ACTION_OVERLAP_TAG: 2307 TAILQ_REMOVE(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 2308 mtx_unlock(&lun->lun_lock); 2309 ctl_set_overlapped_tag(ctsio, ctsio->tag_num); 2310 goto badjuju; 2311 case CTL_ACTION_ERROR: 2312 default: 2313 TAILQ_REMOVE(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 2314 mtx_unlock(&lun->lun_lock); 2315 2316 ctl_set_internal_failure(ctsio, /*sks_valid*/ 0, 2317 /*retry_count*/ 0); 2318badjuju: 2319 ctl_copy_sense_data_back((union ctl_io *)ctsio, &msg_info); 2320 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 2321 msg_info.hdr.serializing_sc = NULL; 2322 msg_info.hdr.msg_type = CTL_MSG_BAD_JUJU; 2323 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 2324 sizeof(msg_info.scsi), M_WAITOK); 2325 ctl_free_io((union ctl_io *)ctsio); 2326 break; 2327 } 2328} 2329 2330/* 2331 * Returns 0 for success, errno for failure. 2332 */ 2333static void 2334ctl_ioctl_fill_ooa(struct ctl_lun *lun, uint32_t *cur_fill_num, 2335 struct ctl_ooa *ooa_hdr, struct ctl_ooa_entry *kern_entries) 2336{ 2337 union ctl_io *io; 2338 2339 mtx_lock(&lun->lun_lock); 2340 for (io = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); (io != NULL); 2341 (*cur_fill_num)++, io = (union ctl_io *)TAILQ_NEXT(&io->io_hdr, 2342 ooa_links)) { 2343 struct ctl_ooa_entry *entry; 2344 2345 /* 2346 * If we've got more than we can fit, just count the 2347 * remaining entries. 2348 */ 2349 if (*cur_fill_num >= ooa_hdr->alloc_num) 2350 continue; 2351 2352 entry = &kern_entries[*cur_fill_num]; 2353 2354 entry->tag_num = io->scsiio.tag_num; 2355 entry->lun_num = lun->lun; 2356#ifdef CTL_TIME_IO 2357 entry->start_bt = io->io_hdr.start_bt; 2358#endif 2359 bcopy(io->scsiio.cdb, entry->cdb, io->scsiio.cdb_len); 2360 entry->cdb_len = io->scsiio.cdb_len; 2361 if (io->io_hdr.flags & CTL_FLAG_BLOCKED) 2362 entry->cmd_flags |= CTL_OOACMD_FLAG_BLOCKED; 2363 2364 if (io->io_hdr.flags & CTL_FLAG_DMA_INPROG) 2365 entry->cmd_flags |= CTL_OOACMD_FLAG_DMA; 2366 2367 if (io->io_hdr.flags & CTL_FLAG_ABORT) 2368 entry->cmd_flags |= CTL_OOACMD_FLAG_ABORT; 2369 2370 if (io->io_hdr.flags & CTL_FLAG_IS_WAS_ON_RTR) 2371 entry->cmd_flags |= CTL_OOACMD_FLAG_RTR; 2372 2373 if (io->io_hdr.flags & CTL_FLAG_DMA_QUEUED) 2374 entry->cmd_flags |= CTL_OOACMD_FLAG_DMA_QUEUED; 2375 } 2376 mtx_unlock(&lun->lun_lock); 2377} 2378 2379static void * 2380ctl_copyin_alloc(void *user_addr, int len, char *error_str, 2381 size_t error_str_len) 2382{ 2383 void *kptr; 2384 2385 kptr = malloc(len, M_CTL, M_WAITOK | M_ZERO); 2386 2387 if (copyin(user_addr, kptr, len) != 0) { 2388 snprintf(error_str, error_str_len, "Error copying %d bytes " 2389 "from user address %p to kernel address %p", len, 2390 user_addr, kptr); 2391 free(kptr, M_CTL); 2392 return (NULL); 2393 } 2394 2395 return (kptr); 2396} 2397 2398static void 2399ctl_free_args(int num_args, struct ctl_be_arg *args) 2400{ 2401 int i; 2402 2403 if (args == NULL) 2404 return; 2405 2406 for (i = 0; i < num_args; i++) { 2407 free(args[i].kname, M_CTL); 2408 free(args[i].kvalue, M_CTL); 2409 } 2410 2411 free(args, M_CTL); 2412} 2413 2414static struct ctl_be_arg * 2415ctl_copyin_args(int num_args, struct ctl_be_arg *uargs, 2416 char *error_str, size_t error_str_len) 2417{ 2418 struct ctl_be_arg *args; 2419 int i; 2420 2421 args = ctl_copyin_alloc(uargs, num_args * sizeof(*args), 2422 error_str, error_str_len); 2423 2424 if (args == NULL) 2425 goto bailout; 2426 2427 for (i = 0; i < num_args; i++) { 2428 args[i].kname = NULL; 2429 args[i].kvalue = NULL; 2430 } 2431 2432 for (i = 0; i < num_args; i++) { 2433 uint8_t *tmpptr; 2434 2435 args[i].kname = ctl_copyin_alloc(args[i].name, 2436 args[i].namelen, error_str, error_str_len); 2437 if (args[i].kname == NULL) 2438 goto bailout; 2439 2440 if (args[i].kname[args[i].namelen - 1] != '\0') { 2441 snprintf(error_str, error_str_len, "Argument %d " 2442 "name is not NUL-terminated", i); 2443 goto bailout; 2444 } 2445 2446 if (args[i].flags & CTL_BEARG_RD) { 2447 tmpptr = ctl_copyin_alloc(args[i].value, 2448 args[i].vallen, error_str, error_str_len); 2449 if (tmpptr == NULL) 2450 goto bailout; 2451 if ((args[i].flags & CTL_BEARG_ASCII) 2452 && (tmpptr[args[i].vallen - 1] != '\0')) { 2453 snprintf(error_str, error_str_len, "Argument " 2454 "%d value is not NUL-terminated", i); 2455 free(tmpptr, M_CTL); 2456 goto bailout; 2457 } 2458 args[i].kvalue = tmpptr; 2459 } else { 2460 args[i].kvalue = malloc(args[i].vallen, 2461 M_CTL, M_WAITOK | M_ZERO); 2462 } 2463 } 2464 2465 return (args); 2466bailout: 2467 2468 ctl_free_args(num_args, args); 2469 2470 return (NULL); 2471} 2472 2473static void 2474ctl_copyout_args(int num_args, struct ctl_be_arg *args) 2475{ 2476 int i; 2477 2478 for (i = 0; i < num_args; i++) { 2479 if (args[i].flags & CTL_BEARG_WR) 2480 copyout(args[i].kvalue, args[i].value, args[i].vallen); 2481 } 2482} 2483 2484/* 2485 * Escape characters that are illegal or not recommended in XML. 2486 */ 2487int 2488ctl_sbuf_printf_esc(struct sbuf *sb, char *str, int size) 2489{ 2490 char *end = str + size; 2491 int retval; 2492 2493 retval = 0; 2494 2495 for (; *str && str < end; str++) { 2496 switch (*str) { 2497 case '&': 2498 retval = sbuf_printf(sb, "&"); 2499 break; 2500 case '>': 2501 retval = sbuf_printf(sb, ">"); 2502 break; 2503 case '<': 2504 retval = sbuf_printf(sb, "<"); 2505 break; 2506 default: 2507 retval = sbuf_putc(sb, *str); 2508 break; 2509 } 2510 2511 if (retval != 0) 2512 break; 2513 2514 } 2515 2516 return (retval); 2517} 2518 2519static void 2520ctl_id_sbuf(struct ctl_devid *id, struct sbuf *sb) 2521{ 2522 struct scsi_vpd_id_descriptor *desc; 2523 int i; 2524 2525 if (id == NULL || id->len < 4) 2526 return; 2527 desc = (struct scsi_vpd_id_descriptor *)id->data; 2528 switch (desc->id_type & SVPD_ID_TYPE_MASK) { 2529 case SVPD_ID_TYPE_T10: 2530 sbuf_printf(sb, "t10."); 2531 break; 2532 case SVPD_ID_TYPE_EUI64: 2533 sbuf_printf(sb, "eui."); 2534 break; 2535 case SVPD_ID_TYPE_NAA: 2536 sbuf_printf(sb, "naa."); 2537 break; 2538 case SVPD_ID_TYPE_SCSI_NAME: 2539 break; 2540 } 2541 switch (desc->proto_codeset & SVPD_ID_CODESET_MASK) { 2542 case SVPD_ID_CODESET_BINARY: 2543 for (i = 0; i < desc->length; i++) 2544 sbuf_printf(sb, "%02x", desc->identifier[i]); 2545 break; 2546 case SVPD_ID_CODESET_ASCII: 2547 sbuf_printf(sb, "%.*s", (int)desc->length, 2548 (char *)desc->identifier); 2549 break; 2550 case SVPD_ID_CODESET_UTF8: 2551 sbuf_printf(sb, "%s", (char *)desc->identifier); 2552 break; 2553 } 2554} 2555 2556static int 2557ctl_ioctl(struct cdev *dev, u_long cmd, caddr_t addr, int flag, 2558 struct thread *td) 2559{ 2560 struct ctl_softc *softc = dev->si_drv1; 2561 struct ctl_port *port; 2562 struct ctl_lun *lun; 2563 int retval; 2564 2565 retval = 0; 2566 2567 switch (cmd) { 2568 case CTL_IO: 2569 retval = ctl_ioctl_io(dev, cmd, addr, flag, td); 2570 break; 2571 case CTL_ENABLE_PORT: 2572 case CTL_DISABLE_PORT: 2573 case CTL_SET_PORT_WWNS: { 2574 struct ctl_port *port; 2575 struct ctl_port_entry *entry; 2576 2577 entry = (struct ctl_port_entry *)addr; 2578 2579 mtx_lock(&softc->ctl_lock); 2580 STAILQ_FOREACH(port, &softc->port_list, links) { 2581 int action, done; 2582 2583 if (port->targ_port < softc->port_min || 2584 port->targ_port >= softc->port_max) 2585 continue; 2586 2587 action = 0; 2588 done = 0; 2589 if ((entry->port_type == CTL_PORT_NONE) 2590 && (entry->targ_port == port->targ_port)) { 2591 /* 2592 * If the user only wants to enable or 2593 * disable or set WWNs on a specific port, 2594 * do the operation and we're done. 2595 */ 2596 action = 1; 2597 done = 1; 2598 } else if (entry->port_type & port->port_type) { 2599 /* 2600 * Compare the user's type mask with the 2601 * particular frontend type to see if we 2602 * have a match. 2603 */ 2604 action = 1; 2605 done = 0; 2606 2607 /* 2608 * Make sure the user isn't trying to set 2609 * WWNs on multiple ports at the same time. 2610 */ 2611 if (cmd == CTL_SET_PORT_WWNS) { 2612 printf("%s: Can't set WWNs on " 2613 "multiple ports\n", __func__); 2614 retval = EINVAL; 2615 break; 2616 } 2617 } 2618 if (action == 0) 2619 continue; 2620 2621 /* 2622 * XXX KDM we have to drop the lock here, because 2623 * the online/offline operations can potentially 2624 * block. We need to reference count the frontends 2625 * so they can't go away, 2626 */ 2627 if (cmd == CTL_ENABLE_PORT) { 2628 mtx_unlock(&softc->ctl_lock); 2629 ctl_port_online(port); 2630 mtx_lock(&softc->ctl_lock); 2631 } else if (cmd == CTL_DISABLE_PORT) { 2632 mtx_unlock(&softc->ctl_lock); 2633 ctl_port_offline(port); 2634 mtx_lock(&softc->ctl_lock); 2635 } else if (cmd == CTL_SET_PORT_WWNS) { 2636 ctl_port_set_wwns(port, 2637 (entry->flags & CTL_PORT_WWNN_VALID) ? 2638 1 : 0, entry->wwnn, 2639 (entry->flags & CTL_PORT_WWPN_VALID) ? 2640 1 : 0, entry->wwpn); 2641 } 2642 if (done != 0) 2643 break; 2644 } 2645 mtx_unlock(&softc->ctl_lock); 2646 break; 2647 } 2648 case CTL_GET_OOA: { 2649 struct ctl_ooa *ooa_hdr; 2650 struct ctl_ooa_entry *entries; 2651 uint32_t cur_fill_num; 2652 2653 ooa_hdr = (struct ctl_ooa *)addr; 2654 2655 if ((ooa_hdr->alloc_len == 0) 2656 || (ooa_hdr->alloc_num == 0)) { 2657 printf("%s: CTL_GET_OOA: alloc len %u and alloc num %u " 2658 "must be non-zero\n", __func__, 2659 ooa_hdr->alloc_len, ooa_hdr->alloc_num); 2660 retval = EINVAL; 2661 break; 2662 } 2663 2664 if (ooa_hdr->alloc_len != (ooa_hdr->alloc_num * 2665 sizeof(struct ctl_ooa_entry))) { 2666 printf("%s: CTL_GET_OOA: alloc len %u must be alloc " 2667 "num %d * sizeof(struct ctl_ooa_entry) %zd\n", 2668 __func__, ooa_hdr->alloc_len, 2669 ooa_hdr->alloc_num,sizeof(struct ctl_ooa_entry)); 2670 retval = EINVAL; 2671 break; 2672 } 2673 2674 entries = malloc(ooa_hdr->alloc_len, M_CTL, M_WAITOK | M_ZERO); 2675 if (entries == NULL) { 2676 printf("%s: could not allocate %d bytes for OOA " 2677 "dump\n", __func__, ooa_hdr->alloc_len); 2678 retval = ENOMEM; 2679 break; 2680 } 2681 2682 mtx_lock(&softc->ctl_lock); 2683 if ((ooa_hdr->flags & CTL_OOA_FLAG_ALL_LUNS) == 0 && 2684 (ooa_hdr->lun_num >= CTL_MAX_LUNS || 2685 softc->ctl_luns[ooa_hdr->lun_num] == NULL)) { 2686 mtx_unlock(&softc->ctl_lock); 2687 free(entries, M_CTL); 2688 printf("%s: CTL_GET_OOA: invalid LUN %ju\n", 2689 __func__, (uintmax_t)ooa_hdr->lun_num); 2690 retval = EINVAL; 2691 break; 2692 } 2693 2694 cur_fill_num = 0; 2695 2696 if (ooa_hdr->flags & CTL_OOA_FLAG_ALL_LUNS) { 2697 STAILQ_FOREACH(lun, &softc->lun_list, links) { 2698 ctl_ioctl_fill_ooa(lun, &cur_fill_num, 2699 ooa_hdr, entries); 2700 } 2701 } else { 2702 lun = softc->ctl_luns[ooa_hdr->lun_num]; 2703 ctl_ioctl_fill_ooa(lun, &cur_fill_num, ooa_hdr, 2704 entries); 2705 } 2706 mtx_unlock(&softc->ctl_lock); 2707 2708 ooa_hdr->fill_num = min(cur_fill_num, ooa_hdr->alloc_num); 2709 ooa_hdr->fill_len = ooa_hdr->fill_num * 2710 sizeof(struct ctl_ooa_entry); 2711 retval = copyout(entries, ooa_hdr->entries, ooa_hdr->fill_len); 2712 if (retval != 0) { 2713 printf("%s: error copying out %d bytes for OOA dump\n", 2714 __func__, ooa_hdr->fill_len); 2715 } 2716 2717 getbinuptime(&ooa_hdr->cur_bt); 2718 2719 if (cur_fill_num > ooa_hdr->alloc_num) { 2720 ooa_hdr->dropped_num = cur_fill_num -ooa_hdr->alloc_num; 2721 ooa_hdr->status = CTL_OOA_NEED_MORE_SPACE; 2722 } else { 2723 ooa_hdr->dropped_num = 0; 2724 ooa_hdr->status = CTL_OOA_OK; 2725 } 2726 2727 free(entries, M_CTL); 2728 break; 2729 } 2730 case CTL_DELAY_IO: { 2731 struct ctl_io_delay_info *delay_info; 2732 2733 delay_info = (struct ctl_io_delay_info *)addr; 2734 2735#ifdef CTL_IO_DELAY 2736 mtx_lock(&softc->ctl_lock); 2737 if (delay_info->lun_id >= CTL_MAX_LUNS || 2738 (lun = softc->ctl_luns[delay_info->lun_id]) == NULL) { 2739 mtx_unlock(&softc->ctl_lock); 2740 delay_info->status = CTL_DELAY_STATUS_INVALID_LUN; 2741 break; 2742 } 2743 mtx_lock(&lun->lun_lock); 2744 mtx_unlock(&softc->ctl_lock); 2745 delay_info->status = CTL_DELAY_STATUS_OK; 2746 switch (delay_info->delay_type) { 2747 case CTL_DELAY_TYPE_CONT: 2748 case CTL_DELAY_TYPE_ONESHOT: 2749 break; 2750 default: 2751 delay_info->status = CTL_DELAY_STATUS_INVALID_TYPE; 2752 break; 2753 } 2754 switch (delay_info->delay_loc) { 2755 case CTL_DELAY_LOC_DATAMOVE: 2756 lun->delay_info.datamove_type = delay_info->delay_type; 2757 lun->delay_info.datamove_delay = delay_info->delay_secs; 2758 break; 2759 case CTL_DELAY_LOC_DONE: 2760 lun->delay_info.done_type = delay_info->delay_type; 2761 lun->delay_info.done_delay = delay_info->delay_secs; 2762 break; 2763 default: 2764 delay_info->status = CTL_DELAY_STATUS_INVALID_LOC; 2765 break; 2766 } 2767 mtx_unlock(&lun->lun_lock); 2768#else 2769 delay_info->status = CTL_DELAY_STATUS_NOT_IMPLEMENTED; 2770#endif /* CTL_IO_DELAY */ 2771 break; 2772 } 2773#ifdef CTL_LEGACY_STATS 2774 case CTL_GETSTATS: { 2775 struct ctl_stats *stats = (struct ctl_stats *)addr; 2776 int i; 2777 2778 /* 2779 * XXX KDM no locking here. If the LUN list changes, 2780 * things can blow up. 2781 */ 2782 i = 0; 2783 stats->status = CTL_SS_OK; 2784 stats->fill_len = 0; 2785 STAILQ_FOREACH(lun, &softc->lun_list, links) { 2786 if (stats->fill_len + sizeof(lun->legacy_stats) > 2787 stats->alloc_len) { 2788 stats->status = CTL_SS_NEED_MORE_SPACE; 2789 break; 2790 } 2791 retval = copyout(&lun->legacy_stats, &stats->lun_stats[i++], 2792 sizeof(lun->legacy_stats)); 2793 if (retval != 0) 2794 break; 2795 stats->fill_len += sizeof(lun->legacy_stats); 2796 } 2797 stats->num_luns = softc->num_luns; 2798 stats->flags = CTL_STATS_FLAG_NONE; 2799#ifdef CTL_TIME_IO 2800 stats->flags |= CTL_STATS_FLAG_TIME_VALID; 2801#endif 2802 getnanouptime(&stats->timestamp); 2803 break; 2804 } 2805#endif /* CTL_LEGACY_STATS */ 2806 case CTL_ERROR_INJECT: { 2807 struct ctl_error_desc *err_desc, *new_err_desc; 2808 2809 err_desc = (struct ctl_error_desc *)addr; 2810 2811 new_err_desc = malloc(sizeof(*new_err_desc), M_CTL, 2812 M_WAITOK | M_ZERO); 2813 bcopy(err_desc, new_err_desc, sizeof(*new_err_desc)); 2814 2815 mtx_lock(&softc->ctl_lock); 2816 if (err_desc->lun_id >= CTL_MAX_LUNS || 2817 (lun = softc->ctl_luns[err_desc->lun_id]) == NULL) { 2818 mtx_unlock(&softc->ctl_lock); 2819 free(new_err_desc, M_CTL); 2820 printf("%s: CTL_ERROR_INJECT: invalid LUN %ju\n", 2821 __func__, (uintmax_t)err_desc->lun_id); 2822 retval = EINVAL; 2823 break; 2824 } 2825 mtx_lock(&lun->lun_lock); 2826 mtx_unlock(&softc->ctl_lock); 2827 2828 /* 2829 * We could do some checking here to verify the validity 2830 * of the request, but given the complexity of error 2831 * injection requests, the checking logic would be fairly 2832 * complex. 2833 * 2834 * For now, if the request is invalid, it just won't get 2835 * executed and might get deleted. 2836 */ 2837 STAILQ_INSERT_TAIL(&lun->error_list, new_err_desc, links); 2838 2839 /* 2840 * XXX KDM check to make sure the serial number is unique, 2841 * in case we somehow manage to wrap. That shouldn't 2842 * happen for a very long time, but it's the right thing to 2843 * do. 2844 */ 2845 new_err_desc->serial = lun->error_serial; 2846 err_desc->serial = lun->error_serial; 2847 lun->error_serial++; 2848 2849 mtx_unlock(&lun->lun_lock); 2850 break; 2851 } 2852 case CTL_ERROR_INJECT_DELETE: { 2853 struct ctl_error_desc *delete_desc, *desc, *desc2; 2854 int delete_done; 2855 2856 delete_desc = (struct ctl_error_desc *)addr; 2857 delete_done = 0; 2858 2859 mtx_lock(&softc->ctl_lock); 2860 if (delete_desc->lun_id >= CTL_MAX_LUNS || 2861 (lun = softc->ctl_luns[delete_desc->lun_id]) == NULL) { 2862 mtx_unlock(&softc->ctl_lock); 2863 printf("%s: CTL_ERROR_INJECT_DELETE: invalid LUN %ju\n", 2864 __func__, (uintmax_t)delete_desc->lun_id); 2865 retval = EINVAL; 2866 break; 2867 } 2868 mtx_lock(&lun->lun_lock); 2869 mtx_unlock(&softc->ctl_lock); 2870 STAILQ_FOREACH_SAFE(desc, &lun->error_list, links, desc2) { 2871 if (desc->serial != delete_desc->serial) 2872 continue; 2873 2874 STAILQ_REMOVE(&lun->error_list, desc, ctl_error_desc, 2875 links); 2876 free(desc, M_CTL); 2877 delete_done = 1; 2878 } 2879 mtx_unlock(&lun->lun_lock); 2880 if (delete_done == 0) { 2881 printf("%s: CTL_ERROR_INJECT_DELETE: can't find " 2882 "error serial %ju on LUN %u\n", __func__, 2883 delete_desc->serial, delete_desc->lun_id); 2884 retval = EINVAL; 2885 break; 2886 } 2887 break; 2888 } 2889 case CTL_DUMP_STRUCTS: { 2890 int j, k; 2891 struct ctl_port *port; 2892 struct ctl_frontend *fe; 2893 2894 mtx_lock(&softc->ctl_lock); 2895 printf("CTL Persistent Reservation information start:\n"); 2896 STAILQ_FOREACH(lun, &softc->lun_list, links) { 2897 mtx_lock(&lun->lun_lock); 2898 if ((lun->flags & CTL_LUN_DISABLED) != 0) { 2899 mtx_unlock(&lun->lun_lock); 2900 continue; 2901 } 2902 2903 for (j = 0; j < CTL_MAX_PORTS; j++) { 2904 if (lun->pr_keys[j] == NULL) 2905 continue; 2906 for (k = 0; k < CTL_MAX_INIT_PER_PORT; k++){ 2907 if (lun->pr_keys[j][k] == 0) 2908 continue; 2909 printf(" LUN %ju port %d iid %d key " 2910 "%#jx\n", lun->lun, j, k, 2911 (uintmax_t)lun->pr_keys[j][k]); 2912 } 2913 } 2914 mtx_unlock(&lun->lun_lock); 2915 } 2916 printf("CTL Persistent Reservation information end\n"); 2917 printf("CTL Ports:\n"); 2918 STAILQ_FOREACH(port, &softc->port_list, links) { 2919 printf(" Port %d '%s' Frontend '%s' Type %u pp %d vp %d WWNN " 2920 "%#jx WWPN %#jx\n", port->targ_port, port->port_name, 2921 port->frontend->name, port->port_type, 2922 port->physical_port, port->virtual_port, 2923 (uintmax_t)port->wwnn, (uintmax_t)port->wwpn); 2924 for (j = 0; j < CTL_MAX_INIT_PER_PORT; j++) { 2925 if (port->wwpn_iid[j].in_use == 0 && 2926 port->wwpn_iid[j].wwpn == 0 && 2927 port->wwpn_iid[j].name == NULL) 2928 continue; 2929 2930 printf(" iid %u use %d WWPN %#jx '%s'\n", 2931 j, port->wwpn_iid[j].in_use, 2932 (uintmax_t)port->wwpn_iid[j].wwpn, 2933 port->wwpn_iid[j].name); 2934 } 2935 } 2936 printf("CTL Port information end\n"); 2937 mtx_unlock(&softc->ctl_lock); 2938 /* 2939 * XXX KDM calling this without a lock. We'd likely want 2940 * to drop the lock before calling the frontend's dump 2941 * routine anyway. 2942 */ 2943 printf("CTL Frontends:\n"); 2944 STAILQ_FOREACH(fe, &softc->fe_list, links) { 2945 printf(" Frontend '%s'\n", fe->name); 2946 if (fe->fe_dump != NULL) 2947 fe->fe_dump(); 2948 } 2949 printf("CTL Frontend information end\n"); 2950 break; 2951 } 2952 case CTL_LUN_REQ: { 2953 struct ctl_lun_req *lun_req; 2954 struct ctl_backend_driver *backend; 2955 2956 lun_req = (struct ctl_lun_req *)addr; 2957 2958 backend = ctl_backend_find(lun_req->backend); 2959 if (backend == NULL) { 2960 lun_req->status = CTL_LUN_ERROR; 2961 snprintf(lun_req->error_str, 2962 sizeof(lun_req->error_str), 2963 "Backend \"%s\" not found.", 2964 lun_req->backend); 2965 break; 2966 } 2967 if (lun_req->num_be_args > 0) { 2968 lun_req->kern_be_args = ctl_copyin_args( 2969 lun_req->num_be_args, 2970 lun_req->be_args, 2971 lun_req->error_str, 2972 sizeof(lun_req->error_str)); 2973 if (lun_req->kern_be_args == NULL) { 2974 lun_req->status = CTL_LUN_ERROR; 2975 break; 2976 } 2977 } 2978 2979 retval = backend->ioctl(dev, cmd, addr, flag, td); 2980 2981 if (lun_req->num_be_args > 0) { 2982 ctl_copyout_args(lun_req->num_be_args, 2983 lun_req->kern_be_args); 2984 ctl_free_args(lun_req->num_be_args, 2985 lun_req->kern_be_args); 2986 } 2987 break; 2988 } 2989 case CTL_LUN_LIST: { 2990 struct sbuf *sb; 2991 struct ctl_lun_list *list; 2992 struct ctl_option *opt; 2993 2994 list = (struct ctl_lun_list *)addr; 2995 2996 /* 2997 * Allocate a fixed length sbuf here, based on the length 2998 * of the user's buffer. We could allocate an auto-extending 2999 * buffer, and then tell the user how much larger our 3000 * amount of data is than his buffer, but that presents 3001 * some problems: 3002 * 3003 * 1. The sbuf(9) routines use a blocking malloc, and so 3004 * we can't hold a lock while calling them with an 3005 * auto-extending buffer. 3006 * 3007 * 2. There is not currently a LUN reference counting 3008 * mechanism, outside of outstanding transactions on 3009 * the LUN's OOA queue. So a LUN could go away on us 3010 * while we're getting the LUN number, backend-specific 3011 * information, etc. Thus, given the way things 3012 * currently work, we need to hold the CTL lock while 3013 * grabbing LUN information. 3014 * 3015 * So, from the user's standpoint, the best thing to do is 3016 * allocate what he thinks is a reasonable buffer length, 3017 * and then if he gets a CTL_LUN_LIST_NEED_MORE_SPACE error, 3018 * double the buffer length and try again. (And repeat 3019 * that until he succeeds.) 3020 */ 3021 sb = sbuf_new(NULL, NULL, list->alloc_len, SBUF_FIXEDLEN); 3022 if (sb == NULL) { 3023 list->status = CTL_LUN_LIST_ERROR; 3024 snprintf(list->error_str, sizeof(list->error_str), 3025 "Unable to allocate %d bytes for LUN list", 3026 list->alloc_len); 3027 break; 3028 } 3029 3030 sbuf_printf(sb, "<ctllunlist>\n"); 3031 3032 mtx_lock(&softc->ctl_lock); 3033 STAILQ_FOREACH(lun, &softc->lun_list, links) { 3034 mtx_lock(&lun->lun_lock); 3035 retval = sbuf_printf(sb, "<lun id=\"%ju\">\n", 3036 (uintmax_t)lun->lun); 3037 3038 /* 3039 * Bail out as soon as we see that we've overfilled 3040 * the buffer. 3041 */ 3042 if (retval != 0) 3043 break; 3044 3045 retval = sbuf_printf(sb, "\t<backend_type>%s" 3046 "</backend_type>\n", 3047 (lun->backend == NULL) ? "none" : 3048 lun->backend->name); 3049 3050 if (retval != 0) 3051 break; 3052 3053 retval = sbuf_printf(sb, "\t<lun_type>%d</lun_type>\n", 3054 lun->be_lun->lun_type); 3055 3056 if (retval != 0) 3057 break; 3058 3059 if (lun->backend == NULL) { 3060 retval = sbuf_printf(sb, "</lun>\n"); 3061 if (retval != 0) 3062 break; 3063 continue; 3064 } 3065 3066 retval = sbuf_printf(sb, "\t<size>%ju</size>\n", 3067 (lun->be_lun->maxlba > 0) ? 3068 lun->be_lun->maxlba + 1 : 0); 3069 3070 if (retval != 0) 3071 break; 3072 3073 retval = sbuf_printf(sb, "\t<blocksize>%u</blocksize>\n", 3074 lun->be_lun->blocksize); 3075 3076 if (retval != 0) 3077 break; 3078 3079 retval = sbuf_printf(sb, "\t<serial_number>"); 3080 3081 if (retval != 0) 3082 break; 3083 3084 retval = ctl_sbuf_printf_esc(sb, 3085 lun->be_lun->serial_num, 3086 sizeof(lun->be_lun->serial_num)); 3087 3088 if (retval != 0) 3089 break; 3090 3091 retval = sbuf_printf(sb, "</serial_number>\n"); 3092 3093 if (retval != 0) 3094 break; 3095 3096 retval = sbuf_printf(sb, "\t<device_id>"); 3097 3098 if (retval != 0) 3099 break; 3100 3101 retval = ctl_sbuf_printf_esc(sb, 3102 lun->be_lun->device_id, 3103 sizeof(lun->be_lun->device_id)); 3104 3105 if (retval != 0) 3106 break; 3107 3108 retval = sbuf_printf(sb, "</device_id>\n"); 3109 3110 if (retval != 0) 3111 break; 3112 3113 if (lun->backend->lun_info != NULL) { 3114 retval = lun->backend->lun_info(lun->be_lun->be_lun, sb); 3115 if (retval != 0) 3116 break; 3117 } 3118 STAILQ_FOREACH(opt, &lun->be_lun->options, links) { 3119 retval = sbuf_printf(sb, "\t<%s>%s</%s>\n", 3120 opt->name, opt->value, opt->name); 3121 if (retval != 0) 3122 break; 3123 } 3124 3125 retval = sbuf_printf(sb, "</lun>\n"); 3126 3127 if (retval != 0) 3128 break; 3129 mtx_unlock(&lun->lun_lock); 3130 } 3131 if (lun != NULL) 3132 mtx_unlock(&lun->lun_lock); 3133 mtx_unlock(&softc->ctl_lock); 3134 3135 if ((retval != 0) 3136 || ((retval = sbuf_printf(sb, "</ctllunlist>\n")) != 0)) { 3137 retval = 0; 3138 sbuf_delete(sb); 3139 list->status = CTL_LUN_LIST_NEED_MORE_SPACE; 3140 snprintf(list->error_str, sizeof(list->error_str), 3141 "Out of space, %d bytes is too small", 3142 list->alloc_len); 3143 break; 3144 } 3145 3146 sbuf_finish(sb); 3147 3148 retval = copyout(sbuf_data(sb), list->lun_xml, 3149 sbuf_len(sb) + 1); 3150 3151 list->fill_len = sbuf_len(sb) + 1; 3152 list->status = CTL_LUN_LIST_OK; 3153 sbuf_delete(sb); 3154 break; 3155 } 3156 case CTL_ISCSI: { 3157 struct ctl_iscsi *ci; 3158 struct ctl_frontend *fe; 3159 3160 ci = (struct ctl_iscsi *)addr; 3161 3162 fe = ctl_frontend_find("iscsi"); 3163 if (fe == NULL) { 3164 ci->status = CTL_ISCSI_ERROR; 3165 snprintf(ci->error_str, sizeof(ci->error_str), 3166 "Frontend \"iscsi\" not found."); 3167 break; 3168 } 3169 3170 retval = fe->ioctl(dev, cmd, addr, flag, td); 3171 break; 3172 } 3173 case CTL_PORT_REQ: { 3174 struct ctl_req *req; 3175 struct ctl_frontend *fe; 3176 3177 req = (struct ctl_req *)addr; 3178 3179 fe = ctl_frontend_find(req->driver); 3180 if (fe == NULL) { 3181 req->status = CTL_LUN_ERROR; 3182 snprintf(req->error_str, sizeof(req->error_str), 3183 "Frontend \"%s\" not found.", req->driver); 3184 break; 3185 } 3186 if (req->num_args > 0) { 3187 req->kern_args = ctl_copyin_args(req->num_args, 3188 req->args, req->error_str, sizeof(req->error_str)); 3189 if (req->kern_args == NULL) { 3190 req->status = CTL_LUN_ERROR; 3191 break; 3192 } 3193 } 3194 3195 if (fe->ioctl) 3196 retval = fe->ioctl(dev, cmd, addr, flag, td); 3197 else 3198 retval = ENODEV; 3199 3200 if (req->num_args > 0) { 3201 ctl_copyout_args(req->num_args, req->kern_args); 3202 ctl_free_args(req->num_args, req->kern_args); 3203 } 3204 break; 3205 } 3206 case CTL_PORT_LIST: { 3207 struct sbuf *sb; 3208 struct ctl_port *port; 3209 struct ctl_lun_list *list; 3210 struct ctl_option *opt; 3211 int j; 3212 uint32_t plun; 3213 3214 list = (struct ctl_lun_list *)addr; 3215 3216 sb = sbuf_new(NULL, NULL, list->alloc_len, SBUF_FIXEDLEN); 3217 if (sb == NULL) { 3218 list->status = CTL_LUN_LIST_ERROR; 3219 snprintf(list->error_str, sizeof(list->error_str), 3220 "Unable to allocate %d bytes for LUN list", 3221 list->alloc_len); 3222 break; 3223 } 3224 3225 sbuf_printf(sb, "<ctlportlist>\n"); 3226 3227 mtx_lock(&softc->ctl_lock); 3228 STAILQ_FOREACH(port, &softc->port_list, links) { 3229 retval = sbuf_printf(sb, "<targ_port id=\"%ju\">\n", 3230 (uintmax_t)port->targ_port); 3231 3232 /* 3233 * Bail out as soon as we see that we've overfilled 3234 * the buffer. 3235 */ 3236 if (retval != 0) 3237 break; 3238 3239 retval = sbuf_printf(sb, "\t<frontend_type>%s" 3240 "</frontend_type>\n", port->frontend->name); 3241 if (retval != 0) 3242 break; 3243 3244 retval = sbuf_printf(sb, "\t<port_type>%d</port_type>\n", 3245 port->port_type); 3246 if (retval != 0) 3247 break; 3248 3249 retval = sbuf_printf(sb, "\t<online>%s</online>\n", 3250 (port->status & CTL_PORT_STATUS_ONLINE) ? "YES" : "NO"); 3251 if (retval != 0) 3252 break; 3253 3254 retval = sbuf_printf(sb, "\t<port_name>%s</port_name>\n", 3255 port->port_name); 3256 if (retval != 0) 3257 break; 3258 3259 retval = sbuf_printf(sb, "\t<physical_port>%d</physical_port>\n", 3260 port->physical_port); 3261 if (retval != 0) 3262 break; 3263 3264 retval = sbuf_printf(sb, "\t<virtual_port>%d</virtual_port>\n", 3265 port->virtual_port); 3266 if (retval != 0) 3267 break; 3268 3269 if (port->target_devid != NULL) { 3270 sbuf_printf(sb, "\t<target>"); 3271 ctl_id_sbuf(port->target_devid, sb); 3272 sbuf_printf(sb, "</target>\n"); 3273 } 3274 3275 if (port->port_devid != NULL) { 3276 sbuf_printf(sb, "\t<port>"); 3277 ctl_id_sbuf(port->port_devid, sb); 3278 sbuf_printf(sb, "</port>\n"); 3279 } 3280 3281 if (port->port_info != NULL) { 3282 retval = port->port_info(port->onoff_arg, sb); 3283 if (retval != 0) 3284 break; 3285 } 3286 STAILQ_FOREACH(opt, &port->options, links) { 3287 retval = sbuf_printf(sb, "\t<%s>%s</%s>\n", 3288 opt->name, opt->value, opt->name); 3289 if (retval != 0) 3290 break; 3291 } 3292 3293 if (port->lun_map != NULL) { 3294 sbuf_printf(sb, "\t<lun_map>on</lun_map>\n"); 3295 for (j = 0; j < port->lun_map_size; j++) { 3296 plun = ctl_lun_map_from_port(port, j); 3297 if (plun == UINT32_MAX) 3298 continue; 3299 sbuf_printf(sb, 3300 "\t<lun id=\"%u\">%u</lun>\n", 3301 j, plun); 3302 } 3303 } 3304 3305 for (j = 0; j < CTL_MAX_INIT_PER_PORT; j++) { 3306 if (port->wwpn_iid[j].in_use == 0 || 3307 (port->wwpn_iid[j].wwpn == 0 && 3308 port->wwpn_iid[j].name == NULL)) 3309 continue; 3310 3311 if (port->wwpn_iid[j].name != NULL) 3312 retval = sbuf_printf(sb, 3313 "\t<initiator id=\"%u\">%s</initiator>\n", 3314 j, port->wwpn_iid[j].name); 3315 else 3316 retval = sbuf_printf(sb, 3317 "\t<initiator id=\"%u\">naa.%08jx</initiator>\n", 3318 j, port->wwpn_iid[j].wwpn); 3319 if (retval != 0) 3320 break; 3321 } 3322 if (retval != 0) 3323 break; 3324 3325 retval = sbuf_printf(sb, "</targ_port>\n"); 3326 if (retval != 0) 3327 break; 3328 } 3329 mtx_unlock(&softc->ctl_lock); 3330 3331 if ((retval != 0) 3332 || ((retval = sbuf_printf(sb, "</ctlportlist>\n")) != 0)) { 3333 retval = 0; 3334 sbuf_delete(sb); 3335 list->status = CTL_LUN_LIST_NEED_MORE_SPACE; 3336 snprintf(list->error_str, sizeof(list->error_str), 3337 "Out of space, %d bytes is too small", 3338 list->alloc_len); 3339 break; 3340 } 3341 3342 sbuf_finish(sb); 3343 3344 retval = copyout(sbuf_data(sb), list->lun_xml, 3345 sbuf_len(sb) + 1); 3346 3347 list->fill_len = sbuf_len(sb) + 1; 3348 list->status = CTL_LUN_LIST_OK; 3349 sbuf_delete(sb); 3350 break; 3351 } 3352 case CTL_LUN_MAP: { 3353 struct ctl_lun_map *lm = (struct ctl_lun_map *)addr; 3354 struct ctl_port *port; 3355 3356 mtx_lock(&softc->ctl_lock); 3357 if (lm->port < softc->port_min || 3358 lm->port >= softc->port_max || 3359 (port = softc->ctl_ports[lm->port]) == NULL) { 3360 mtx_unlock(&softc->ctl_lock); 3361 return (ENXIO); 3362 } 3363 if (port->status & CTL_PORT_STATUS_ONLINE) { 3364 STAILQ_FOREACH(lun, &softc->lun_list, links) { 3365 if (ctl_lun_map_to_port(port, lun->lun) == 3366 UINT32_MAX) 3367 continue; 3368 mtx_lock(&lun->lun_lock); 3369 ctl_est_ua_port(lun, lm->port, -1, 3370 CTL_UA_LUN_CHANGE); 3371 mtx_unlock(&lun->lun_lock); 3372 } 3373 } 3374 mtx_unlock(&softc->ctl_lock); // XXX: port_enable sleeps 3375 if (lm->plun != UINT32_MAX) { 3376 if (lm->lun == UINT32_MAX) 3377 retval = ctl_lun_map_unset(port, lm->plun); 3378 else if (lm->lun < CTL_MAX_LUNS && 3379 softc->ctl_luns[lm->lun] != NULL) 3380 retval = ctl_lun_map_set(port, lm->plun, lm->lun); 3381 else 3382 return (ENXIO); 3383 } else { 3384 if (lm->lun == UINT32_MAX) 3385 retval = ctl_lun_map_deinit(port); 3386 else 3387 retval = ctl_lun_map_init(port); 3388 } 3389 if (port->status & CTL_PORT_STATUS_ONLINE) 3390 ctl_isc_announce_port(port); 3391 break; 3392 } 3393 case CTL_GET_LUN_STATS: { 3394 struct ctl_get_io_stats *stats = (struct ctl_get_io_stats *)addr; 3395 int i; 3396 3397 /* 3398 * XXX KDM no locking here. If the LUN list changes, 3399 * things can blow up. 3400 */ 3401 i = 0; 3402 stats->status = CTL_SS_OK; 3403 stats->fill_len = 0; 3404 STAILQ_FOREACH(lun, &softc->lun_list, links) { 3405 if (lun->lun < stats->first_item) 3406 continue; 3407 if (stats->fill_len + sizeof(lun->stats) > 3408 stats->alloc_len) { 3409 stats->status = CTL_SS_NEED_MORE_SPACE; 3410 break; 3411 } 3412 retval = copyout(&lun->stats, &stats->stats[i++], 3413 sizeof(lun->stats)); 3414 if (retval != 0) 3415 break; 3416 stats->fill_len += sizeof(lun->stats); 3417 } 3418 stats->num_items = softc->num_luns; 3419 stats->flags = CTL_STATS_FLAG_NONE; 3420#ifdef CTL_TIME_IO 3421 stats->flags |= CTL_STATS_FLAG_TIME_VALID; 3422#endif 3423 getnanouptime(&stats->timestamp); 3424 break; 3425 } 3426 case CTL_GET_PORT_STATS: { 3427 struct ctl_get_io_stats *stats = (struct ctl_get_io_stats *)addr; 3428 int i; 3429 3430 /* 3431 * XXX KDM no locking here. If the LUN list changes, 3432 * things can blow up. 3433 */ 3434 i = 0; 3435 stats->status = CTL_SS_OK; 3436 stats->fill_len = 0; 3437 STAILQ_FOREACH(port, &softc->port_list, links) { 3438 if (port->targ_port < stats->first_item) 3439 continue; 3440 if (stats->fill_len + sizeof(port->stats) > 3441 stats->alloc_len) { 3442 stats->status = CTL_SS_NEED_MORE_SPACE; 3443 break; 3444 } 3445 retval = copyout(&port->stats, &stats->stats[i++], 3446 sizeof(port->stats)); 3447 if (retval != 0) 3448 break; 3449 stats->fill_len += sizeof(port->stats); 3450 } 3451 stats->num_items = softc->num_ports; 3452 stats->flags = CTL_STATS_FLAG_NONE; 3453#ifdef CTL_TIME_IO 3454 stats->flags |= CTL_STATS_FLAG_TIME_VALID; 3455#endif 3456 getnanouptime(&stats->timestamp); 3457 break; 3458 } 3459 default: { 3460 /* XXX KDM should we fix this? */ 3461#if 0 3462 struct ctl_backend_driver *backend; 3463 unsigned int type; 3464 int found; 3465 3466 found = 0; 3467 3468 /* 3469 * We encode the backend type as the ioctl type for backend 3470 * ioctls. So parse it out here, and then search for a 3471 * backend of this type. 3472 */ 3473 type = _IOC_TYPE(cmd); 3474 3475 STAILQ_FOREACH(backend, &softc->be_list, links) { 3476 if (backend->type == type) { 3477 found = 1; 3478 break; 3479 } 3480 } 3481 if (found == 0) { 3482 printf("ctl: unknown ioctl command %#lx or backend " 3483 "%d\n", cmd, type); 3484 retval = EINVAL; 3485 break; 3486 } 3487 retval = backend->ioctl(dev, cmd, addr, flag, td); 3488#endif 3489 retval = ENOTTY; 3490 break; 3491 } 3492 } 3493 return (retval); 3494} 3495 3496uint32_t 3497ctl_get_initindex(struct ctl_nexus *nexus) 3498{ 3499 return (nexus->initid + (nexus->targ_port * CTL_MAX_INIT_PER_PORT)); 3500} 3501 3502int 3503ctl_lun_map_init(struct ctl_port *port) 3504{ 3505 struct ctl_softc *softc = port->ctl_softc; 3506 struct ctl_lun *lun; 3507 int size = ctl_lun_map_size; 3508 uint32_t i; 3509 3510 if (port->lun_map == NULL || port->lun_map_size < size) { 3511 port->lun_map_size = 0; 3512 free(port->lun_map, M_CTL); 3513 port->lun_map = malloc(size * sizeof(uint32_t), 3514 M_CTL, M_NOWAIT); 3515 } 3516 if (port->lun_map == NULL) 3517 return (ENOMEM); 3518 for (i = 0; i < size; i++) 3519 port->lun_map[i] = UINT32_MAX; 3520 port->lun_map_size = size; 3521 if (port->status & CTL_PORT_STATUS_ONLINE) { 3522 if (port->lun_disable != NULL) { 3523 STAILQ_FOREACH(lun, &softc->lun_list, links) 3524 port->lun_disable(port->targ_lun_arg, lun->lun); 3525 } 3526 ctl_isc_announce_port(port); 3527 } 3528 return (0); 3529} 3530 3531int 3532ctl_lun_map_deinit(struct ctl_port *port) 3533{ 3534 struct ctl_softc *softc = port->ctl_softc; 3535 struct ctl_lun *lun; 3536 3537 if (port->lun_map == NULL) 3538 return (0); 3539 port->lun_map_size = 0; 3540 free(port->lun_map, M_CTL); 3541 port->lun_map = NULL; 3542 if (port->status & CTL_PORT_STATUS_ONLINE) { 3543 if (port->lun_enable != NULL) { 3544 STAILQ_FOREACH(lun, &softc->lun_list, links) 3545 port->lun_enable(port->targ_lun_arg, lun->lun); 3546 } 3547 ctl_isc_announce_port(port); 3548 } 3549 return (0); 3550} 3551 3552int 3553ctl_lun_map_set(struct ctl_port *port, uint32_t plun, uint32_t glun) 3554{ 3555 int status; 3556 uint32_t old; 3557 3558 if (port->lun_map == NULL) { 3559 status = ctl_lun_map_init(port); 3560 if (status != 0) 3561 return (status); 3562 } 3563 if (plun >= port->lun_map_size) 3564 return (EINVAL); 3565 old = port->lun_map[plun]; 3566 port->lun_map[plun] = glun; 3567 if ((port->status & CTL_PORT_STATUS_ONLINE) && old == UINT32_MAX) { 3568 if (port->lun_enable != NULL) 3569 port->lun_enable(port->targ_lun_arg, plun); 3570 ctl_isc_announce_port(port); 3571 } 3572 return (0); 3573} 3574 3575int 3576ctl_lun_map_unset(struct ctl_port *port, uint32_t plun) 3577{ 3578 uint32_t old; 3579 3580 if (port->lun_map == NULL || plun >= port->lun_map_size) 3581 return (0); 3582 old = port->lun_map[plun]; 3583 port->lun_map[plun] = UINT32_MAX; 3584 if ((port->status & CTL_PORT_STATUS_ONLINE) && old != UINT32_MAX) { 3585 if (port->lun_disable != NULL) 3586 port->lun_disable(port->targ_lun_arg, plun); 3587 ctl_isc_announce_port(port); 3588 } 3589 return (0); 3590} 3591 3592uint32_t 3593ctl_lun_map_from_port(struct ctl_port *port, uint32_t lun_id) 3594{ 3595 3596 if (port == NULL) 3597 return (UINT32_MAX); 3598 if (port->lun_map == NULL) 3599 return (lun_id); 3600 if (lun_id > port->lun_map_size) 3601 return (UINT32_MAX); 3602 return (port->lun_map[lun_id]); 3603} 3604 3605uint32_t 3606ctl_lun_map_to_port(struct ctl_port *port, uint32_t lun_id) 3607{ 3608 uint32_t i; 3609 3610 if (port == NULL) 3611 return (UINT32_MAX); 3612 if (port->lun_map == NULL) 3613 return (lun_id); 3614 for (i = 0; i < port->lun_map_size; i++) { 3615 if (port->lun_map[i] == lun_id) 3616 return (i); 3617 } 3618 return (UINT32_MAX); 3619} 3620 3621uint32_t 3622ctl_decode_lun(uint64_t encoded) 3623{ 3624 uint8_t lun[8]; 3625 uint32_t result = 0xffffffff; 3626 3627 be64enc(lun, encoded); 3628 switch (lun[0] & RPL_LUNDATA_ATYP_MASK) { 3629 case RPL_LUNDATA_ATYP_PERIPH: 3630 if ((lun[0] & 0x3f) == 0 && lun[2] == 0 && lun[3] == 0 && 3631 lun[4] == 0 && lun[5] == 0 && lun[6] == 0 && lun[7] == 0) 3632 result = lun[1]; 3633 break; 3634 case RPL_LUNDATA_ATYP_FLAT: 3635 if (lun[2] == 0 && lun[3] == 0 && lun[4] == 0 && lun[5] == 0 && 3636 lun[6] == 0 && lun[7] == 0) 3637 result = ((lun[0] & 0x3f) << 8) + lun[1]; 3638 break; 3639 case RPL_LUNDATA_ATYP_EXTLUN: 3640 switch (lun[0] & RPL_LUNDATA_EXT_EAM_MASK) { 3641 case 0x02: 3642 switch (lun[0] & RPL_LUNDATA_EXT_LEN_MASK) { 3643 case 0x00: 3644 result = lun[1]; 3645 break; 3646 case 0x10: 3647 result = (lun[1] << 16) + (lun[2] << 8) + 3648 lun[3]; 3649 break; 3650 case 0x20: 3651 if (lun[1] == 0 && lun[6] == 0 && lun[7] == 0) 3652 result = (lun[2] << 24) + 3653 (lun[3] << 16) + (lun[4] << 8) + 3654 lun[5]; 3655 break; 3656 } 3657 break; 3658 case RPL_LUNDATA_EXT_EAM_NOT_SPEC: 3659 result = 0xffffffff; 3660 break; 3661 } 3662 break; 3663 } 3664 return (result); 3665} 3666 3667uint64_t 3668ctl_encode_lun(uint32_t decoded) 3669{ 3670 uint64_t l = decoded; 3671 3672 if (l <= 0xff) 3673 return (((uint64_t)RPL_LUNDATA_ATYP_PERIPH << 56) | (l << 48)); 3674 if (l <= 0x3fff) 3675 return (((uint64_t)RPL_LUNDATA_ATYP_FLAT << 56) | (l << 48)); 3676 if (l <= 0xffffff) 3677 return (((uint64_t)(RPL_LUNDATA_ATYP_EXTLUN | 0x12) << 56) | 3678 (l << 32)); 3679 return ((((uint64_t)RPL_LUNDATA_ATYP_EXTLUN | 0x22) << 56) | (l << 16)); 3680} 3681 3682int 3683ctl_ffz(uint32_t *mask, uint32_t first, uint32_t last) 3684{ 3685 int i; 3686 3687 for (i = first; i < last; i++) { 3688 if ((mask[i / 32] & (1 << (i % 32))) == 0) 3689 return (i); 3690 } 3691 return (-1); 3692} 3693 3694int 3695ctl_set_mask(uint32_t *mask, uint32_t bit) 3696{ 3697 uint32_t chunk, piece; 3698 3699 chunk = bit >> 5; 3700 piece = bit % (sizeof(uint32_t) * 8); 3701 3702 if ((mask[chunk] & (1 << piece)) != 0) 3703 return (-1); 3704 else 3705 mask[chunk] |= (1 << piece); 3706 3707 return (0); 3708} 3709 3710int 3711ctl_clear_mask(uint32_t *mask, uint32_t bit) 3712{ 3713 uint32_t chunk, piece; 3714 3715 chunk = bit >> 5; 3716 piece = bit % (sizeof(uint32_t) * 8); 3717 3718 if ((mask[chunk] & (1 << piece)) == 0) 3719 return (-1); 3720 else 3721 mask[chunk] &= ~(1 << piece); 3722 3723 return (0); 3724} 3725 3726int 3727ctl_is_set(uint32_t *mask, uint32_t bit) 3728{ 3729 uint32_t chunk, piece; 3730 3731 chunk = bit >> 5; 3732 piece = bit % (sizeof(uint32_t) * 8); 3733 3734 if ((mask[chunk] & (1 << piece)) == 0) 3735 return (0); 3736 else 3737 return (1); 3738} 3739 3740static uint64_t 3741ctl_get_prkey(struct ctl_lun *lun, uint32_t residx) 3742{ 3743 uint64_t *t; 3744 3745 t = lun->pr_keys[residx/CTL_MAX_INIT_PER_PORT]; 3746 if (t == NULL) 3747 return (0); 3748 return (t[residx % CTL_MAX_INIT_PER_PORT]); 3749} 3750 3751static void 3752ctl_clr_prkey(struct ctl_lun *lun, uint32_t residx) 3753{ 3754 uint64_t *t; 3755 3756 t = lun->pr_keys[residx/CTL_MAX_INIT_PER_PORT]; 3757 if (t == NULL) 3758 return; 3759 t[residx % CTL_MAX_INIT_PER_PORT] = 0; 3760} 3761 3762static void 3763ctl_alloc_prkey(struct ctl_lun *lun, uint32_t residx) 3764{ 3765 uint64_t *p; 3766 u_int i; 3767 3768 i = residx/CTL_MAX_INIT_PER_PORT; 3769 if (lun->pr_keys[i] != NULL) 3770 return; 3771 mtx_unlock(&lun->lun_lock); 3772 p = malloc(sizeof(uint64_t) * CTL_MAX_INIT_PER_PORT, M_CTL, 3773 M_WAITOK | M_ZERO); 3774 mtx_lock(&lun->lun_lock); 3775 if (lun->pr_keys[i] == NULL) 3776 lun->pr_keys[i] = p; 3777 else 3778 free(p, M_CTL); 3779} 3780 3781static void 3782ctl_set_prkey(struct ctl_lun *lun, uint32_t residx, uint64_t key) 3783{ 3784 uint64_t *t; 3785 3786 t = lun->pr_keys[residx/CTL_MAX_INIT_PER_PORT]; 3787 KASSERT(t != NULL, ("prkey %d is not allocated", residx)); 3788 t[residx % CTL_MAX_INIT_PER_PORT] = key; 3789} 3790 3791/* 3792 * ctl_softc, pool_name, total_ctl_io are passed in. 3793 * npool is passed out. 3794 */ 3795int 3796ctl_pool_create(struct ctl_softc *ctl_softc, const char *pool_name, 3797 uint32_t total_ctl_io, void **npool) 3798{ 3799 struct ctl_io_pool *pool; 3800 3801 pool = (struct ctl_io_pool *)malloc(sizeof(*pool), M_CTL, 3802 M_NOWAIT | M_ZERO); 3803 if (pool == NULL) 3804 return (ENOMEM); 3805 3806 snprintf(pool->name, sizeof(pool->name), "CTL IO %s", pool_name); 3807 pool->ctl_softc = ctl_softc; 3808#ifdef IO_POOLS 3809 pool->zone = uma_zsecond_create(pool->name, NULL, 3810 NULL, NULL, NULL, ctl_softc->io_zone); 3811 /* uma_prealloc(pool->zone, total_ctl_io); */ 3812#else 3813 pool->zone = ctl_softc->io_zone; 3814#endif 3815 3816 *npool = pool; 3817 return (0); 3818} 3819 3820void 3821ctl_pool_free(struct ctl_io_pool *pool) 3822{ 3823 3824 if (pool == NULL) 3825 return; 3826 3827#ifdef IO_POOLS 3828 uma_zdestroy(pool->zone); 3829#endif 3830 free(pool, M_CTL); 3831} 3832 3833union ctl_io * 3834ctl_alloc_io(void *pool_ref) 3835{ 3836 struct ctl_io_pool *pool = (struct ctl_io_pool *)pool_ref; 3837 union ctl_io *io; 3838 3839 io = uma_zalloc(pool->zone, M_WAITOK); 3840 if (io != NULL) { 3841 io->io_hdr.pool = pool_ref; 3842 CTL_SOFTC(io) = pool->ctl_softc; 3843 } 3844 return (io); 3845} 3846 3847union ctl_io * 3848ctl_alloc_io_nowait(void *pool_ref) 3849{ 3850 struct ctl_io_pool *pool = (struct ctl_io_pool *)pool_ref; 3851 union ctl_io *io; 3852 3853 io = uma_zalloc(pool->zone, M_NOWAIT); 3854 if (io != NULL) { 3855 io->io_hdr.pool = pool_ref; 3856 CTL_SOFTC(io) = pool->ctl_softc; 3857 } 3858 return (io); 3859} 3860 3861void 3862ctl_free_io(union ctl_io *io) 3863{ 3864 struct ctl_io_pool *pool; 3865 3866 if (io == NULL) 3867 return; 3868 3869 pool = (struct ctl_io_pool *)io->io_hdr.pool; 3870 uma_zfree(pool->zone, io); 3871} 3872 3873void 3874ctl_zero_io(union ctl_io *io) 3875{ 3876 struct ctl_io_pool *pool; 3877 3878 if (io == NULL) 3879 return; 3880 3881 /* 3882 * May need to preserve linked list pointers at some point too. 3883 */ 3884 pool = io->io_hdr.pool; 3885 memset(io, 0, sizeof(*io)); 3886 io->io_hdr.pool = pool; 3887 CTL_SOFTC(io) = pool->ctl_softc; 3888} 3889 3890int 3891ctl_expand_number(const char *buf, uint64_t *num) 3892{ 3893 char *endptr; 3894 uint64_t number; 3895 unsigned shift; 3896 3897 number = strtoq(buf, &endptr, 0); 3898 3899 switch (tolower((unsigned char)*endptr)) { 3900 case 'e': 3901 shift = 60; 3902 break; 3903 case 'p': 3904 shift = 50; 3905 break; 3906 case 't': 3907 shift = 40; 3908 break; 3909 case 'g': 3910 shift = 30; 3911 break; 3912 case 'm': 3913 shift = 20; 3914 break; 3915 case 'k': 3916 shift = 10; 3917 break; 3918 case 'b': 3919 case '\0': /* No unit. */ 3920 *num = number; 3921 return (0); 3922 default: 3923 /* Unrecognized unit. */ 3924 return (-1); 3925 } 3926 3927 if ((number << shift) >> shift != number) { 3928 /* Overflow */ 3929 return (-1); 3930 } 3931 *num = number << shift; 3932 return (0); 3933} 3934 3935 3936/* 3937 * This routine could be used in the future to load default and/or saved 3938 * mode page parameters for a particuar lun. 3939 */ 3940static int 3941ctl_init_page_index(struct ctl_lun *lun) 3942{ 3943 int i, page_code; 3944 struct ctl_page_index *page_index; 3945 const char *value; 3946 uint64_t ival; 3947 3948 memcpy(&lun->mode_pages.index, page_index_template, 3949 sizeof(page_index_template)); 3950 3951 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 3952 3953 page_index = &lun->mode_pages.index[i]; 3954 if (lun->be_lun->lun_type == T_DIRECT && 3955 (page_index->page_flags & CTL_PAGE_FLAG_DIRECT) == 0) 3956 continue; 3957 if (lun->be_lun->lun_type == T_PROCESSOR && 3958 (page_index->page_flags & CTL_PAGE_FLAG_PROC) == 0) 3959 continue; 3960 if (lun->be_lun->lun_type == T_CDROM && 3961 (page_index->page_flags & CTL_PAGE_FLAG_CDROM) == 0) 3962 continue; 3963 3964 page_code = page_index->page_code & SMPH_PC_MASK; 3965 switch (page_code) { 3966 case SMS_RW_ERROR_RECOVERY_PAGE: { 3967 KASSERT(page_index->subpage == SMS_SUBPAGE_PAGE_0, 3968 ("subpage %#x for page %#x is incorrect!", 3969 page_index->subpage, page_code)); 3970 memcpy(&lun->mode_pages.rw_er_page[CTL_PAGE_CURRENT], 3971 &rw_er_page_default, 3972 sizeof(rw_er_page_default)); 3973 memcpy(&lun->mode_pages.rw_er_page[CTL_PAGE_CHANGEABLE], 3974 &rw_er_page_changeable, 3975 sizeof(rw_er_page_changeable)); 3976 memcpy(&lun->mode_pages.rw_er_page[CTL_PAGE_DEFAULT], 3977 &rw_er_page_default, 3978 sizeof(rw_er_page_default)); 3979 memcpy(&lun->mode_pages.rw_er_page[CTL_PAGE_SAVED], 3980 &rw_er_page_default, 3981 sizeof(rw_er_page_default)); 3982 page_index->page_data = 3983 (uint8_t *)lun->mode_pages.rw_er_page; 3984 break; 3985 } 3986 case SMS_FORMAT_DEVICE_PAGE: { 3987 struct scsi_format_page *format_page; 3988 3989 KASSERT(page_index->subpage == SMS_SUBPAGE_PAGE_0, 3990 ("subpage %#x for page %#x is incorrect!", 3991 page_index->subpage, page_code)); 3992 3993 /* 3994 * Sectors per track are set above. Bytes per 3995 * sector need to be set here on a per-LUN basis. 3996 */ 3997 memcpy(&lun->mode_pages.format_page[CTL_PAGE_CURRENT], 3998 &format_page_default, 3999 sizeof(format_page_default)); 4000 memcpy(&lun->mode_pages.format_page[ 4001 CTL_PAGE_CHANGEABLE], &format_page_changeable, 4002 sizeof(format_page_changeable)); 4003 memcpy(&lun->mode_pages.format_page[CTL_PAGE_DEFAULT], 4004 &format_page_default, 4005 sizeof(format_page_default)); 4006 memcpy(&lun->mode_pages.format_page[CTL_PAGE_SAVED], 4007 &format_page_default, 4008 sizeof(format_page_default)); 4009 4010 format_page = &lun->mode_pages.format_page[ 4011 CTL_PAGE_CURRENT]; 4012 scsi_ulto2b(lun->be_lun->blocksize, 4013 format_page->bytes_per_sector); 4014 4015 format_page = &lun->mode_pages.format_page[ 4016 CTL_PAGE_DEFAULT]; 4017 scsi_ulto2b(lun->be_lun->blocksize, 4018 format_page->bytes_per_sector); 4019 4020 format_page = &lun->mode_pages.format_page[ 4021 CTL_PAGE_SAVED]; 4022 scsi_ulto2b(lun->be_lun->blocksize, 4023 format_page->bytes_per_sector); 4024 4025 page_index->page_data = 4026 (uint8_t *)lun->mode_pages.format_page; 4027 break; 4028 } 4029 case SMS_RIGID_DISK_PAGE: { 4030 struct scsi_rigid_disk_page *rigid_disk_page; 4031 uint32_t sectors_per_cylinder; 4032 uint64_t cylinders; 4033#ifndef __XSCALE__ 4034 int shift; 4035#endif /* !__XSCALE__ */ 4036 4037 KASSERT(page_index->subpage == SMS_SUBPAGE_PAGE_0, 4038 ("subpage %#x for page %#x is incorrect!", 4039 page_index->subpage, page_code)); 4040 4041 /* 4042 * Rotation rate and sectors per track are set 4043 * above. We calculate the cylinders here based on 4044 * capacity. Due to the number of heads and 4045 * sectors per track we're using, smaller arrays 4046 * may turn out to have 0 cylinders. Linux and 4047 * FreeBSD don't pay attention to these mode pages 4048 * to figure out capacity, but Solaris does. It 4049 * seems to deal with 0 cylinders just fine, and 4050 * works out a fake geometry based on the capacity. 4051 */ 4052 memcpy(&lun->mode_pages.rigid_disk_page[ 4053 CTL_PAGE_DEFAULT], &rigid_disk_page_default, 4054 sizeof(rigid_disk_page_default)); 4055 memcpy(&lun->mode_pages.rigid_disk_page[ 4056 CTL_PAGE_CHANGEABLE],&rigid_disk_page_changeable, 4057 sizeof(rigid_disk_page_changeable)); 4058 4059 sectors_per_cylinder = CTL_DEFAULT_SECTORS_PER_TRACK * 4060 CTL_DEFAULT_HEADS; 4061 4062 /* 4063 * The divide method here will be more accurate, 4064 * probably, but results in floating point being 4065 * used in the kernel on i386 (__udivdi3()). On the 4066 * XScale, though, __udivdi3() is implemented in 4067 * software. 4068 * 4069 * The shift method for cylinder calculation is 4070 * accurate if sectors_per_cylinder is a power of 4071 * 2. Otherwise it might be slightly off -- you 4072 * might have a bit of a truncation problem. 4073 */ 4074#ifdef __XSCALE__ 4075 cylinders = (lun->be_lun->maxlba + 1) / 4076 sectors_per_cylinder; 4077#else 4078 for (shift = 31; shift > 0; shift--) { 4079 if (sectors_per_cylinder & (1 << shift)) 4080 break; 4081 } 4082 cylinders = (lun->be_lun->maxlba + 1) >> shift; 4083#endif 4084 4085 /* 4086 * We've basically got 3 bytes, or 24 bits for the 4087 * cylinder size in the mode page. If we're over, 4088 * just round down to 2^24. 4089 */ 4090 if (cylinders > 0xffffff) 4091 cylinders = 0xffffff; 4092 4093 rigid_disk_page = &lun->mode_pages.rigid_disk_page[ 4094 CTL_PAGE_DEFAULT]; 4095 scsi_ulto3b(cylinders, rigid_disk_page->cylinders); 4096 4097 if ((value = ctl_get_opt(&lun->be_lun->options, 4098 "rpm")) != NULL) { 4099 scsi_ulto2b(strtol(value, NULL, 0), 4100 rigid_disk_page->rotation_rate); 4101 } 4102 4103 memcpy(&lun->mode_pages.rigid_disk_page[CTL_PAGE_CURRENT], 4104 &lun->mode_pages.rigid_disk_page[CTL_PAGE_DEFAULT], 4105 sizeof(rigid_disk_page_default)); 4106 memcpy(&lun->mode_pages.rigid_disk_page[CTL_PAGE_SAVED], 4107 &lun->mode_pages.rigid_disk_page[CTL_PAGE_DEFAULT], 4108 sizeof(rigid_disk_page_default)); 4109 4110 page_index->page_data = 4111 (uint8_t *)lun->mode_pages.rigid_disk_page; 4112 break; 4113 } 4114 case SMS_VERIFY_ERROR_RECOVERY_PAGE: { 4115 KASSERT(page_index->subpage == SMS_SUBPAGE_PAGE_0, 4116 ("subpage %#x for page %#x is incorrect!", 4117 page_index->subpage, page_code)); 4118 memcpy(&lun->mode_pages.verify_er_page[CTL_PAGE_CURRENT], 4119 &verify_er_page_default, 4120 sizeof(verify_er_page_default)); 4121 memcpy(&lun->mode_pages.verify_er_page[CTL_PAGE_CHANGEABLE], 4122 &verify_er_page_changeable, 4123 sizeof(verify_er_page_changeable)); 4124 memcpy(&lun->mode_pages.verify_er_page[CTL_PAGE_DEFAULT], 4125 &verify_er_page_default, 4126 sizeof(verify_er_page_default)); 4127 memcpy(&lun->mode_pages.verify_er_page[CTL_PAGE_SAVED], 4128 &verify_er_page_default, 4129 sizeof(verify_er_page_default)); 4130 page_index->page_data = 4131 (uint8_t *)lun->mode_pages.verify_er_page; 4132 break; 4133 } 4134 case SMS_CACHING_PAGE: { 4135 struct scsi_caching_page *caching_page; 4136 4137 KASSERT(page_index->subpage == SMS_SUBPAGE_PAGE_0, 4138 ("subpage %#x for page %#x is incorrect!", 4139 page_index->subpage, page_code)); 4140 memcpy(&lun->mode_pages.caching_page[CTL_PAGE_DEFAULT], 4141 &caching_page_default, 4142 sizeof(caching_page_default)); 4143 memcpy(&lun->mode_pages.caching_page[ 4144 CTL_PAGE_CHANGEABLE], &caching_page_changeable, 4145 sizeof(caching_page_changeable)); 4146 memcpy(&lun->mode_pages.caching_page[CTL_PAGE_SAVED], 4147 &caching_page_default, 4148 sizeof(caching_page_default)); 4149 caching_page = &lun->mode_pages.caching_page[ 4150 CTL_PAGE_SAVED]; 4151 value = ctl_get_opt(&lun->be_lun->options, "writecache"); 4152 if (value != NULL && strcmp(value, "off") == 0) 4153 caching_page->flags1 &= ~SCP_WCE; 4154 value = ctl_get_opt(&lun->be_lun->options, "readcache"); 4155 if (value != NULL && strcmp(value, "off") == 0) 4156 caching_page->flags1 |= SCP_RCD; 4157 memcpy(&lun->mode_pages.caching_page[CTL_PAGE_CURRENT], 4158 &lun->mode_pages.caching_page[CTL_PAGE_SAVED], 4159 sizeof(caching_page_default)); 4160 page_index->page_data = 4161 (uint8_t *)lun->mode_pages.caching_page; 4162 break; 4163 } 4164 case SMS_CONTROL_MODE_PAGE: { 4165 switch (page_index->subpage) { 4166 case SMS_SUBPAGE_PAGE_0: { 4167 struct scsi_control_page *control_page; 4168 4169 memcpy(&lun->mode_pages.control_page[ 4170 CTL_PAGE_DEFAULT], 4171 &control_page_default, 4172 sizeof(control_page_default)); 4173 memcpy(&lun->mode_pages.control_page[ 4174 CTL_PAGE_CHANGEABLE], 4175 &control_page_changeable, 4176 sizeof(control_page_changeable)); 4177 memcpy(&lun->mode_pages.control_page[ 4178 CTL_PAGE_SAVED], 4179 &control_page_default, 4180 sizeof(control_page_default)); 4181 control_page = &lun->mode_pages.control_page[ 4182 CTL_PAGE_SAVED]; 4183 value = ctl_get_opt(&lun->be_lun->options, 4184 "reordering"); 4185 if (value != NULL && 4186 strcmp(value, "unrestricted") == 0) { 4187 control_page->queue_flags &= 4188 ~SCP_QUEUE_ALG_MASK; 4189 control_page->queue_flags |= 4190 SCP_QUEUE_ALG_UNRESTRICTED; 4191 } 4192 memcpy(&lun->mode_pages.control_page[ 4193 CTL_PAGE_CURRENT], 4194 &lun->mode_pages.control_page[ 4195 CTL_PAGE_SAVED], 4196 sizeof(control_page_default)); 4197 page_index->page_data = 4198 (uint8_t *)lun->mode_pages.control_page; 4199 break; 4200 } 4201 case 0x01: 4202 memcpy(&lun->mode_pages.control_ext_page[ 4203 CTL_PAGE_DEFAULT], 4204 &control_ext_page_default, 4205 sizeof(control_ext_page_default)); 4206 memcpy(&lun->mode_pages.control_ext_page[ 4207 CTL_PAGE_CHANGEABLE], 4208 &control_ext_page_changeable, 4209 sizeof(control_ext_page_changeable)); 4210 memcpy(&lun->mode_pages.control_ext_page[ 4211 CTL_PAGE_SAVED], 4212 &control_ext_page_default, 4213 sizeof(control_ext_page_default)); 4214 memcpy(&lun->mode_pages.control_ext_page[ 4215 CTL_PAGE_CURRENT], 4216 &lun->mode_pages.control_ext_page[ 4217 CTL_PAGE_SAVED], 4218 sizeof(control_ext_page_default)); 4219 page_index->page_data = 4220 (uint8_t *)lun->mode_pages.control_ext_page; 4221 break; 4222 default: 4223 panic("subpage %#x for page %#x is incorrect!", 4224 page_index->subpage, page_code); 4225 } 4226 break; 4227 } 4228 case SMS_INFO_EXCEPTIONS_PAGE: { 4229 switch (page_index->subpage) { 4230 case SMS_SUBPAGE_PAGE_0: 4231 memcpy(&lun->mode_pages.ie_page[CTL_PAGE_CURRENT], 4232 &ie_page_default, 4233 sizeof(ie_page_default)); 4234 memcpy(&lun->mode_pages.ie_page[ 4235 CTL_PAGE_CHANGEABLE], &ie_page_changeable, 4236 sizeof(ie_page_changeable)); 4237 memcpy(&lun->mode_pages.ie_page[CTL_PAGE_DEFAULT], 4238 &ie_page_default, 4239 sizeof(ie_page_default)); 4240 memcpy(&lun->mode_pages.ie_page[CTL_PAGE_SAVED], 4241 &ie_page_default, 4242 sizeof(ie_page_default)); 4243 page_index->page_data = 4244 (uint8_t *)lun->mode_pages.ie_page; 4245 break; 4246 case 0x02: { 4247 struct ctl_logical_block_provisioning_page *page; 4248 4249 memcpy(&lun->mode_pages.lbp_page[CTL_PAGE_DEFAULT], 4250 &lbp_page_default, 4251 sizeof(lbp_page_default)); 4252 memcpy(&lun->mode_pages.lbp_page[ 4253 CTL_PAGE_CHANGEABLE], &lbp_page_changeable, 4254 sizeof(lbp_page_changeable)); 4255 memcpy(&lun->mode_pages.lbp_page[CTL_PAGE_SAVED], 4256 &lbp_page_default, 4257 sizeof(lbp_page_default)); 4258 page = &lun->mode_pages.lbp_page[CTL_PAGE_SAVED]; 4259 value = ctl_get_opt(&lun->be_lun->options, 4260 "avail-threshold"); 4261 if (value != NULL && 4262 ctl_expand_number(value, &ival) == 0) { 4263 page->descr[0].flags |= SLBPPD_ENABLED | 4264 SLBPPD_ARMING_DEC; 4265 if (lun->be_lun->blocksize) 4266 ival /= lun->be_lun->blocksize; 4267 else 4268 ival /= 512; 4269 scsi_ulto4b(ival >> CTL_LBP_EXPONENT, 4270 page->descr[0].count); 4271 } 4272 value = ctl_get_opt(&lun->be_lun->options, 4273 "used-threshold"); 4274 if (value != NULL && 4275 ctl_expand_number(value, &ival) == 0) { 4276 page->descr[1].flags |= SLBPPD_ENABLED | 4277 SLBPPD_ARMING_INC; 4278 if (lun->be_lun->blocksize) 4279 ival /= lun->be_lun->blocksize; 4280 else 4281 ival /= 512; 4282 scsi_ulto4b(ival >> CTL_LBP_EXPONENT, 4283 page->descr[1].count); 4284 } 4285 value = ctl_get_opt(&lun->be_lun->options, 4286 "pool-avail-threshold"); 4287 if (value != NULL && 4288 ctl_expand_number(value, &ival) == 0) { 4289 page->descr[2].flags |= SLBPPD_ENABLED | 4290 SLBPPD_ARMING_DEC; 4291 if (lun->be_lun->blocksize) 4292 ival /= lun->be_lun->blocksize; 4293 else 4294 ival /= 512; 4295 scsi_ulto4b(ival >> CTL_LBP_EXPONENT, 4296 page->descr[2].count); 4297 } 4298 value = ctl_get_opt(&lun->be_lun->options, 4299 "pool-used-threshold"); 4300 if (value != NULL && 4301 ctl_expand_number(value, &ival) == 0) { 4302 page->descr[3].flags |= SLBPPD_ENABLED | 4303 SLBPPD_ARMING_INC; 4304 if (lun->be_lun->blocksize) 4305 ival /= lun->be_lun->blocksize; 4306 else 4307 ival /= 512; 4308 scsi_ulto4b(ival >> CTL_LBP_EXPONENT, 4309 page->descr[3].count); 4310 } 4311 memcpy(&lun->mode_pages.lbp_page[CTL_PAGE_CURRENT], 4312 &lun->mode_pages.lbp_page[CTL_PAGE_SAVED], 4313 sizeof(lbp_page_default)); 4314 page_index->page_data = 4315 (uint8_t *)lun->mode_pages.lbp_page; 4316 break; 4317 } 4318 default: 4319 panic("subpage %#x for page %#x is incorrect!", 4320 page_index->subpage, page_code); 4321 } 4322 break; 4323 } 4324 case SMS_CDDVD_CAPS_PAGE:{ 4325 KASSERT(page_index->subpage == SMS_SUBPAGE_PAGE_0, 4326 ("subpage %#x for page %#x is incorrect!", 4327 page_index->subpage, page_code)); 4328 memcpy(&lun->mode_pages.cddvd_page[CTL_PAGE_DEFAULT], 4329 &cddvd_page_default, 4330 sizeof(cddvd_page_default)); 4331 memcpy(&lun->mode_pages.cddvd_page[ 4332 CTL_PAGE_CHANGEABLE], &cddvd_page_changeable, 4333 sizeof(cddvd_page_changeable)); 4334 memcpy(&lun->mode_pages.cddvd_page[CTL_PAGE_SAVED], 4335 &cddvd_page_default, 4336 sizeof(cddvd_page_default)); 4337 memcpy(&lun->mode_pages.cddvd_page[CTL_PAGE_CURRENT], 4338 &lun->mode_pages.cddvd_page[CTL_PAGE_SAVED], 4339 sizeof(cddvd_page_default)); 4340 page_index->page_data = 4341 (uint8_t *)lun->mode_pages.cddvd_page; 4342 break; 4343 } 4344 default: 4345 panic("invalid page code value %#x", page_code); 4346 } 4347 } 4348 4349 return (CTL_RETVAL_COMPLETE); 4350} 4351 4352static int 4353ctl_init_log_page_index(struct ctl_lun *lun) 4354{ 4355 struct ctl_page_index *page_index; 4356 int i, j, k, prev; 4357 4358 memcpy(&lun->log_pages.index, log_page_index_template, 4359 sizeof(log_page_index_template)); 4360 4361 prev = -1; 4362 for (i = 0, j = 0, k = 0; i < CTL_NUM_LOG_PAGES; i++) { 4363 4364 page_index = &lun->log_pages.index[i]; 4365 if (lun->be_lun->lun_type == T_DIRECT && 4366 (page_index->page_flags & CTL_PAGE_FLAG_DIRECT) == 0) 4367 continue; 4368 if (lun->be_lun->lun_type == T_PROCESSOR && 4369 (page_index->page_flags & CTL_PAGE_FLAG_PROC) == 0) 4370 continue; 4371 if (lun->be_lun->lun_type == T_CDROM && 4372 (page_index->page_flags & CTL_PAGE_FLAG_CDROM) == 0) 4373 continue; 4374 4375 if (page_index->page_code == SLS_LOGICAL_BLOCK_PROVISIONING && 4376 lun->backend->lun_attr == NULL) 4377 continue; 4378 4379 if (page_index->page_code != prev) { 4380 lun->log_pages.pages_page[j] = page_index->page_code; 4381 prev = page_index->page_code; 4382 j++; 4383 } 4384 lun->log_pages.subpages_page[k*2] = page_index->page_code; 4385 lun->log_pages.subpages_page[k*2+1] = page_index->subpage; 4386 k++; 4387 } 4388 lun->log_pages.index[0].page_data = &lun->log_pages.pages_page[0]; 4389 lun->log_pages.index[0].page_len = j; 4390 lun->log_pages.index[1].page_data = &lun->log_pages.subpages_page[0]; 4391 lun->log_pages.index[1].page_len = k * 2; 4392 lun->log_pages.index[2].page_data = &lun->log_pages.lbp_page[0]; 4393 lun->log_pages.index[2].page_len = 12*CTL_NUM_LBP_PARAMS; 4394 lun->log_pages.index[3].page_data = (uint8_t *)&lun->log_pages.stat_page; 4395 lun->log_pages.index[3].page_len = sizeof(lun->log_pages.stat_page); 4396 lun->log_pages.index[4].page_data = (uint8_t *)&lun->log_pages.ie_page; 4397 lun->log_pages.index[4].page_len = sizeof(lun->log_pages.ie_page); 4398 4399 return (CTL_RETVAL_COMPLETE); 4400} 4401 4402static int 4403hex2bin(const char *str, uint8_t *buf, int buf_size) 4404{ 4405 int i; 4406 u_char c; 4407 4408 memset(buf, 0, buf_size); 4409 while (isspace(str[0])) 4410 str++; 4411 if (str[0] == '0' && (str[1] == 'x' || str[1] == 'X')) 4412 str += 2; 4413 buf_size *= 2; 4414 for (i = 0; str[i] != 0 && i < buf_size; i++) { 4415 while (str[i] == '-') /* Skip dashes in UUIDs. */ 4416 str++; 4417 c = str[i]; 4418 if (isdigit(c)) 4419 c -= '0'; 4420 else if (isalpha(c)) 4421 c -= isupper(c) ? 'A' - 10 : 'a' - 10; 4422 else 4423 break; 4424 if (c >= 16) 4425 break; 4426 if ((i & 1) == 0) 4427 buf[i / 2] |= (c << 4); 4428 else 4429 buf[i / 2] |= c; 4430 } 4431 return ((i + 1) / 2); 4432} 4433 4434/* 4435 * LUN allocation. 4436 * 4437 * Requirements: 4438 * - caller allocates and zeros LUN storage, or passes in a NULL LUN if he 4439 * wants us to allocate the LUN and he can block. 4440 * - ctl_softc is always set 4441 * - be_lun is set if the LUN has a backend (needed for disk LUNs) 4442 * 4443 * Returns 0 for success, non-zero (errno) for failure. 4444 */ 4445static int 4446ctl_alloc_lun(struct ctl_softc *ctl_softc, struct ctl_lun *ctl_lun, 4447 struct ctl_be_lun *const be_lun) 4448{ 4449 struct ctl_lun *nlun, *lun; 4450 struct scsi_vpd_id_descriptor *desc; 4451 struct scsi_vpd_id_t10 *t10id; 4452 const char *eui, *naa, *scsiname, *uuid, *vendor, *value; 4453 int lun_number, lun_malloced; 4454 int devidlen, idlen1, idlen2 = 0, len; 4455 4456 if (be_lun == NULL) 4457 return (EINVAL); 4458 4459 /* 4460 * We currently only support Direct Access or Processor LUN types. 4461 */ 4462 switch (be_lun->lun_type) { 4463 case T_DIRECT: 4464 case T_PROCESSOR: 4465 case T_CDROM: 4466 break; 4467 case T_SEQUENTIAL: 4468 case T_CHANGER: 4469 default: 4470 be_lun->lun_config_status(be_lun->be_lun, 4471 CTL_LUN_CONFIG_FAILURE); 4472 break; 4473 } 4474 if (ctl_lun == NULL) { 4475 lun = malloc(sizeof(*lun), M_CTL, M_WAITOK); 4476 lun_malloced = 1; 4477 } else { 4478 lun_malloced = 0; 4479 lun = ctl_lun; 4480 } 4481 4482 memset(lun, 0, sizeof(*lun)); 4483 if (lun_malloced) 4484 lun->flags = CTL_LUN_MALLOCED; 4485 4486 /* Generate LUN ID. */ 4487 devidlen = max(CTL_DEVID_MIN_LEN, 4488 strnlen(be_lun->device_id, CTL_DEVID_LEN)); 4489 idlen1 = sizeof(*t10id) + devidlen; 4490 len = sizeof(struct scsi_vpd_id_descriptor) + idlen1; 4491 scsiname = ctl_get_opt(&be_lun->options, "scsiname"); 4492 if (scsiname != NULL) { 4493 idlen2 = roundup2(strlen(scsiname) + 1, 4); 4494 len += sizeof(struct scsi_vpd_id_descriptor) + idlen2; 4495 } 4496 eui = ctl_get_opt(&be_lun->options, "eui"); 4497 if (eui != NULL) { 4498 len += sizeof(struct scsi_vpd_id_descriptor) + 16; 4499 } 4500 naa = ctl_get_opt(&be_lun->options, "naa"); 4501 if (naa != NULL) { 4502 len += sizeof(struct scsi_vpd_id_descriptor) + 16; 4503 } 4504 uuid = ctl_get_opt(&be_lun->options, "uuid"); 4505 if (uuid != NULL) { 4506 len += sizeof(struct scsi_vpd_id_descriptor) + 18; 4507 } 4508 lun->lun_devid = malloc(sizeof(struct ctl_devid) + len, 4509 M_CTL, M_WAITOK | M_ZERO); 4510 desc = (struct scsi_vpd_id_descriptor *)lun->lun_devid->data; 4511 desc->proto_codeset = SVPD_ID_CODESET_ASCII; 4512 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | SVPD_ID_TYPE_T10; 4513 desc->length = idlen1; 4514 t10id = (struct scsi_vpd_id_t10 *)&desc->identifier[0]; 4515 memset(t10id->vendor, ' ', sizeof(t10id->vendor)); 4516 if ((vendor = ctl_get_opt(&be_lun->options, "vendor")) == NULL) { 4517 strncpy((char *)t10id->vendor, CTL_VENDOR, sizeof(t10id->vendor)); 4518 } else { 4519 strncpy(t10id->vendor, vendor, 4520 min(sizeof(t10id->vendor), strlen(vendor))); 4521 } 4522 strncpy((char *)t10id->vendor_spec_id, 4523 (char *)be_lun->device_id, devidlen); 4524 if (scsiname != NULL) { 4525 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 4526 desc->length); 4527 desc->proto_codeset = SVPD_ID_CODESET_UTF8; 4528 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | 4529 SVPD_ID_TYPE_SCSI_NAME; 4530 desc->length = idlen2; 4531 strlcpy(desc->identifier, scsiname, idlen2); 4532 } 4533 if (eui != NULL) { 4534 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 4535 desc->length); 4536 desc->proto_codeset = SVPD_ID_CODESET_BINARY; 4537 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | 4538 SVPD_ID_TYPE_EUI64; 4539 desc->length = hex2bin(eui, desc->identifier, 16); 4540 desc->length = desc->length > 12 ? 16 : 4541 (desc->length > 8 ? 12 : 8); 4542 len -= 16 - desc->length; 4543 } 4544 if (naa != NULL) { 4545 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 4546 desc->length); 4547 desc->proto_codeset = SVPD_ID_CODESET_BINARY; 4548 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | 4549 SVPD_ID_TYPE_NAA; 4550 desc->length = hex2bin(naa, desc->identifier, 16); 4551 desc->length = desc->length > 8 ? 16 : 8; 4552 len -= 16 - desc->length; 4553 } 4554 if (uuid != NULL) { 4555 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 4556 desc->length); 4557 desc->proto_codeset = SVPD_ID_CODESET_BINARY; 4558 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | 4559 SVPD_ID_TYPE_UUID; 4560 desc->identifier[0] = 0x10; 4561 hex2bin(uuid, &desc->identifier[2], 16); 4562 desc->length = 18; 4563 } 4564 lun->lun_devid->len = len; 4565 4566 mtx_lock(&ctl_softc->ctl_lock); 4567 /* 4568 * See if the caller requested a particular LUN number. If so, see 4569 * if it is available. Otherwise, allocate the first available LUN. 4570 */ 4571 if (be_lun->flags & CTL_LUN_FLAG_ID_REQ) { 4572 if ((be_lun->req_lun_id > (CTL_MAX_LUNS - 1)) 4573 || (ctl_is_set(ctl_softc->ctl_lun_mask, be_lun->req_lun_id))) { 4574 mtx_unlock(&ctl_softc->ctl_lock); 4575 if (be_lun->req_lun_id > (CTL_MAX_LUNS - 1)) { 4576 printf("ctl: requested LUN ID %d is higher " 4577 "than CTL_MAX_LUNS - 1 (%d)\n", 4578 be_lun->req_lun_id, CTL_MAX_LUNS - 1); 4579 } else { 4580 /* 4581 * XXX KDM return an error, or just assign 4582 * another LUN ID in this case?? 4583 */ 4584 printf("ctl: requested LUN ID %d is already " 4585 "in use\n", be_lun->req_lun_id); 4586 } 4587fail: 4588 free(lun->lun_devid, M_CTL); 4589 if (lun->flags & CTL_LUN_MALLOCED) 4590 free(lun, M_CTL); 4591 be_lun->lun_config_status(be_lun->be_lun, 4592 CTL_LUN_CONFIG_FAILURE); 4593 return (ENOSPC); 4594 } 4595 lun_number = be_lun->req_lun_id; 4596 } else { 4597 lun_number = ctl_ffz(ctl_softc->ctl_lun_mask, 0, CTL_MAX_LUNS); 4598 if (lun_number == -1) { 4599 mtx_unlock(&ctl_softc->ctl_lock); 4600 printf("ctl: can't allocate LUN, out of LUNs\n"); 4601 goto fail; 4602 } 4603 } 4604 ctl_set_mask(ctl_softc->ctl_lun_mask, lun_number); 4605 mtx_unlock(&ctl_softc->ctl_lock); 4606 4607 mtx_init(&lun->lun_lock, "CTL LUN", NULL, MTX_DEF); 4608 lun->lun = lun_number; 4609 lun->be_lun = be_lun; 4610 /* 4611 * The processor LUN is always enabled. Disk LUNs come on line 4612 * disabled, and must be enabled by the backend. 4613 */ 4614 lun->flags |= CTL_LUN_DISABLED; 4615 lun->backend = be_lun->be; 4616 be_lun->ctl_lun = lun; 4617 be_lun->lun_id = lun_number; 4618 atomic_add_int(&be_lun->be->num_luns, 1); 4619 if (be_lun->flags & CTL_LUN_FLAG_EJECTED) 4620 lun->flags |= CTL_LUN_EJECTED; 4621 if (be_lun->flags & CTL_LUN_FLAG_NO_MEDIA) 4622 lun->flags |= CTL_LUN_NO_MEDIA; 4623 if (be_lun->flags & CTL_LUN_FLAG_STOPPED) 4624 lun->flags |= CTL_LUN_STOPPED; 4625 4626 if (be_lun->flags & CTL_LUN_FLAG_PRIMARY) 4627 lun->flags |= CTL_LUN_PRIMARY_SC; 4628 4629 value = ctl_get_opt(&be_lun->options, "removable"); 4630 if (value != NULL) { 4631 if (strcmp(value, "on") == 0) 4632 lun->flags |= CTL_LUN_REMOVABLE; 4633 } else if (be_lun->lun_type == T_CDROM) 4634 lun->flags |= CTL_LUN_REMOVABLE; 4635 4636 lun->ctl_softc = ctl_softc; 4637#ifdef CTL_TIME_IO 4638 lun->last_busy = getsbinuptime(); 4639#endif 4640 TAILQ_INIT(&lun->ooa_queue); 4641 TAILQ_INIT(&lun->blocked_queue); 4642 STAILQ_INIT(&lun->error_list); 4643 lun->ie_reported = 1; 4644 callout_init_mtx(&lun->ie_callout, &lun->lun_lock, 0); 4645 ctl_tpc_lun_init(lun); 4646 if (lun->flags & CTL_LUN_REMOVABLE) { 4647 lun->prevent = malloc((CTL_MAX_INITIATORS + 31) / 32 * 4, 4648 M_CTL, M_WAITOK); 4649 } 4650 4651 /* 4652 * Initialize the mode and log page index. 4653 */ 4654 ctl_init_page_index(lun); 4655 ctl_init_log_page_index(lun); 4656 4657 /* Setup statistics gathering */ 4658#ifdef CTL_LEGACY_STATS 4659 lun->legacy_stats.device_type = be_lun->lun_type; 4660 lun->legacy_stats.lun_number = lun_number; 4661 lun->legacy_stats.blocksize = be_lun->blocksize; 4662 if (be_lun->blocksize == 0) 4663 lun->legacy_stats.flags = CTL_LUN_STATS_NO_BLOCKSIZE; 4664 for (len = 0; len < CTL_MAX_PORTS; len++) 4665 lun->legacy_stats.ports[len].targ_port = len; 4666#endif /* CTL_LEGACY_STATS */ 4667 lun->stats.item = lun_number; 4668 4669 /* 4670 * Now, before we insert this lun on the lun list, set the lun 4671 * inventory changed UA for all other luns. 4672 */ 4673 mtx_lock(&ctl_softc->ctl_lock); 4674 STAILQ_FOREACH(nlun, &ctl_softc->lun_list, links) { 4675 mtx_lock(&nlun->lun_lock); 4676 ctl_est_ua_all(nlun, -1, CTL_UA_LUN_CHANGE); 4677 mtx_unlock(&nlun->lun_lock); 4678 } 4679 STAILQ_INSERT_TAIL(&ctl_softc->lun_list, lun, links); 4680 ctl_softc->ctl_luns[lun_number] = lun; 4681 ctl_softc->num_luns++; 4682 mtx_unlock(&ctl_softc->ctl_lock); 4683 4684 lun->be_lun->lun_config_status(lun->be_lun->be_lun, CTL_LUN_CONFIG_OK); 4685 return (0); 4686} 4687 4688/* 4689 * Delete a LUN. 4690 * Assumptions: 4691 * - LUN has already been marked invalid and any pending I/O has been taken 4692 * care of. 4693 */ 4694static int 4695ctl_free_lun(struct ctl_lun *lun) 4696{ 4697 struct ctl_softc *softc = lun->ctl_softc; 4698 struct ctl_lun *nlun; 4699 int i; 4700 4701 mtx_assert(&softc->ctl_lock, MA_OWNED); 4702 4703 STAILQ_REMOVE(&softc->lun_list, lun, ctl_lun, links); 4704 4705 ctl_clear_mask(softc->ctl_lun_mask, lun->lun); 4706 4707 softc->ctl_luns[lun->lun] = NULL; 4708 4709 if (!TAILQ_EMPTY(&lun->ooa_queue)) 4710 panic("Freeing a LUN %p with outstanding I/O!!\n", lun); 4711 4712 softc->num_luns--; 4713 4714 /* 4715 * Tell the backend to free resources, if this LUN has a backend. 4716 */ 4717 atomic_subtract_int(&lun->be_lun->be->num_luns, 1); 4718 lun->be_lun->lun_shutdown(lun->be_lun->be_lun); 4719 4720 lun->ie_reportcnt = UINT32_MAX; 4721 callout_drain(&lun->ie_callout); 4722 4723 ctl_tpc_lun_shutdown(lun); 4724 mtx_destroy(&lun->lun_lock); 4725 free(lun->lun_devid, M_CTL); 4726 for (i = 0; i < CTL_MAX_PORTS; i++) 4727 free(lun->pending_ua[i], M_CTL); 4728 for (i = 0; i < CTL_MAX_PORTS; i++) 4729 free(lun->pr_keys[i], M_CTL); 4730 free(lun->write_buffer, M_CTL); 4731 free(lun->prevent, M_CTL); 4732 if (lun->flags & CTL_LUN_MALLOCED) 4733 free(lun, M_CTL); 4734 4735 STAILQ_FOREACH(nlun, &softc->lun_list, links) { 4736 mtx_lock(&nlun->lun_lock); 4737 ctl_est_ua_all(nlun, -1, CTL_UA_LUN_CHANGE); 4738 mtx_unlock(&nlun->lun_lock); 4739 } 4740 4741 return (0); 4742} 4743 4744static void 4745ctl_create_lun(struct ctl_be_lun *be_lun) 4746{ 4747 4748 /* 4749 * ctl_alloc_lun() should handle all potential failure cases. 4750 */ 4751 ctl_alloc_lun(control_softc, NULL, be_lun); 4752} 4753 4754int 4755ctl_add_lun(struct ctl_be_lun *be_lun) 4756{ 4757 struct ctl_softc *softc = control_softc; 4758 4759 mtx_lock(&softc->ctl_lock); 4760 STAILQ_INSERT_TAIL(&softc->pending_lun_queue, be_lun, links); 4761 mtx_unlock(&softc->ctl_lock); 4762 wakeup(&softc->pending_lun_queue); 4763 4764 return (0); 4765} 4766 4767int 4768ctl_enable_lun(struct ctl_be_lun *be_lun) 4769{ 4770 struct ctl_softc *softc; 4771 struct ctl_port *port, *nport; 4772 struct ctl_lun *lun; 4773 int retval; 4774 4775 lun = (struct ctl_lun *)be_lun->ctl_lun; 4776 softc = lun->ctl_softc; 4777 4778 mtx_lock(&softc->ctl_lock); 4779 mtx_lock(&lun->lun_lock); 4780 if ((lun->flags & CTL_LUN_DISABLED) == 0) { 4781 /* 4782 * eh? Why did we get called if the LUN is already 4783 * enabled? 4784 */ 4785 mtx_unlock(&lun->lun_lock); 4786 mtx_unlock(&softc->ctl_lock); 4787 return (0); 4788 } 4789 lun->flags &= ~CTL_LUN_DISABLED; 4790 mtx_unlock(&lun->lun_lock); 4791 4792 STAILQ_FOREACH_SAFE(port, &softc->port_list, links, nport) { 4793 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0 || 4794 port->lun_map != NULL || port->lun_enable == NULL) 4795 continue; 4796 4797 /* 4798 * Drop the lock while we call the FETD's enable routine. 4799 * This can lead to a callback into CTL (at least in the 4800 * case of the internal initiator frontend. 4801 */ 4802 mtx_unlock(&softc->ctl_lock); 4803 retval = port->lun_enable(port->targ_lun_arg, lun->lun); 4804 mtx_lock(&softc->ctl_lock); 4805 if (retval != 0) { 4806 printf("%s: FETD %s port %d returned error " 4807 "%d for lun_enable on lun %jd\n", 4808 __func__, port->port_name, port->targ_port, 4809 retval, (intmax_t)lun->lun); 4810 } 4811 } 4812 4813 mtx_unlock(&softc->ctl_lock); 4814 ctl_isc_announce_lun(lun); 4815 4816 return (0); 4817} 4818 4819int 4820ctl_disable_lun(struct ctl_be_lun *be_lun) 4821{ 4822 struct ctl_softc *softc; 4823 struct ctl_port *port; 4824 struct ctl_lun *lun; 4825 int retval; 4826 4827 lun = (struct ctl_lun *)be_lun->ctl_lun; 4828 softc = lun->ctl_softc; 4829 4830 mtx_lock(&softc->ctl_lock); 4831 mtx_lock(&lun->lun_lock); 4832 if (lun->flags & CTL_LUN_DISABLED) { 4833 mtx_unlock(&lun->lun_lock); 4834 mtx_unlock(&softc->ctl_lock); 4835 return (0); 4836 } 4837 lun->flags |= CTL_LUN_DISABLED; 4838 mtx_unlock(&lun->lun_lock); 4839 4840 STAILQ_FOREACH(port, &softc->port_list, links) { 4841 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0 || 4842 port->lun_map != NULL || port->lun_disable == NULL) 4843 continue; 4844 4845 /* 4846 * Drop the lock before we call the frontend's disable 4847 * routine, to avoid lock order reversals. 4848 * 4849 * XXX KDM what happens if the frontend list changes while 4850 * we're traversing it? It's unlikely, but should be handled. 4851 */ 4852 mtx_unlock(&softc->ctl_lock); 4853 retval = port->lun_disable(port->targ_lun_arg, lun->lun); 4854 mtx_lock(&softc->ctl_lock); 4855 if (retval != 0) { 4856 printf("%s: FETD %s port %d returned error " 4857 "%d for lun_disable on lun %jd\n", 4858 __func__, port->port_name, port->targ_port, 4859 retval, (intmax_t)lun->lun); 4860 } 4861 } 4862 4863 mtx_unlock(&softc->ctl_lock); 4864 ctl_isc_announce_lun(lun); 4865 4866 return (0); 4867} 4868 4869int 4870ctl_start_lun(struct ctl_be_lun *be_lun) 4871{ 4872 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 4873 4874 mtx_lock(&lun->lun_lock); 4875 lun->flags &= ~CTL_LUN_STOPPED; 4876 mtx_unlock(&lun->lun_lock); 4877 return (0); 4878} 4879 4880int 4881ctl_stop_lun(struct ctl_be_lun *be_lun) 4882{ 4883 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 4884 4885 mtx_lock(&lun->lun_lock); 4886 lun->flags |= CTL_LUN_STOPPED; 4887 mtx_unlock(&lun->lun_lock); 4888 return (0); 4889} 4890 4891int 4892ctl_lun_no_media(struct ctl_be_lun *be_lun) 4893{ 4894 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 4895 4896 mtx_lock(&lun->lun_lock); 4897 lun->flags |= CTL_LUN_NO_MEDIA; 4898 mtx_unlock(&lun->lun_lock); 4899 return (0); 4900} 4901 4902int 4903ctl_lun_has_media(struct ctl_be_lun *be_lun) 4904{ 4905 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 4906 union ctl_ha_msg msg; 4907 4908 mtx_lock(&lun->lun_lock); 4909 lun->flags &= ~(CTL_LUN_NO_MEDIA | CTL_LUN_EJECTED); 4910 if (lun->flags & CTL_LUN_REMOVABLE) 4911 ctl_est_ua_all(lun, -1, CTL_UA_MEDIUM_CHANGE); 4912 mtx_unlock(&lun->lun_lock); 4913 if ((lun->flags & CTL_LUN_REMOVABLE) && 4914 lun->ctl_softc->ha_mode == CTL_HA_MODE_XFER) { 4915 bzero(&msg.ua, sizeof(msg.ua)); 4916 msg.hdr.msg_type = CTL_MSG_UA; 4917 msg.hdr.nexus.initid = -1; 4918 msg.hdr.nexus.targ_port = -1; 4919 msg.hdr.nexus.targ_lun = lun->lun; 4920 msg.hdr.nexus.targ_mapped_lun = lun->lun; 4921 msg.ua.ua_all = 1; 4922 msg.ua.ua_set = 1; 4923 msg.ua.ua_type = CTL_UA_MEDIUM_CHANGE; 4924 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, sizeof(msg.ua), 4925 M_WAITOK); 4926 } 4927 return (0); 4928} 4929 4930int 4931ctl_lun_ejected(struct ctl_be_lun *be_lun) 4932{ 4933 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 4934 4935 mtx_lock(&lun->lun_lock); 4936 lun->flags |= CTL_LUN_EJECTED; 4937 mtx_unlock(&lun->lun_lock); 4938 return (0); 4939} 4940 4941int 4942ctl_lun_primary(struct ctl_be_lun *be_lun) 4943{ 4944 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 4945 4946 mtx_lock(&lun->lun_lock); 4947 lun->flags |= CTL_LUN_PRIMARY_SC; 4948 ctl_est_ua_all(lun, -1, CTL_UA_ASYM_ACC_CHANGE); 4949 mtx_unlock(&lun->lun_lock); 4950 ctl_isc_announce_lun(lun); 4951 return (0); 4952} 4953 4954int 4955ctl_lun_secondary(struct ctl_be_lun *be_lun) 4956{ 4957 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 4958 4959 mtx_lock(&lun->lun_lock); 4960 lun->flags &= ~CTL_LUN_PRIMARY_SC; 4961 ctl_est_ua_all(lun, -1, CTL_UA_ASYM_ACC_CHANGE); 4962 mtx_unlock(&lun->lun_lock); 4963 ctl_isc_announce_lun(lun); 4964 return (0); 4965} 4966 4967int 4968ctl_invalidate_lun(struct ctl_be_lun *be_lun) 4969{ 4970 struct ctl_softc *softc; 4971 struct ctl_lun *lun; 4972 4973 lun = (struct ctl_lun *)be_lun->ctl_lun; 4974 softc = lun->ctl_softc; 4975 4976 mtx_lock(&lun->lun_lock); 4977 4978 /* 4979 * The LUN needs to be disabled before it can be marked invalid. 4980 */ 4981 if ((lun->flags & CTL_LUN_DISABLED) == 0) { 4982 mtx_unlock(&lun->lun_lock); 4983 return (-1); 4984 } 4985 /* 4986 * Mark the LUN invalid. 4987 */ 4988 lun->flags |= CTL_LUN_INVALID; 4989 4990 /* 4991 * If there is nothing in the OOA queue, go ahead and free the LUN. 4992 * If we have something in the OOA queue, we'll free it when the 4993 * last I/O completes. 4994 */ 4995 if (TAILQ_EMPTY(&lun->ooa_queue)) { 4996 mtx_unlock(&lun->lun_lock); 4997 mtx_lock(&softc->ctl_lock); 4998 ctl_free_lun(lun); 4999 mtx_unlock(&softc->ctl_lock); 5000 } else 5001 mtx_unlock(&lun->lun_lock); 5002 5003 return (0); 5004} 5005 5006void 5007ctl_lun_capacity_changed(struct ctl_be_lun *be_lun) 5008{ 5009 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 5010 union ctl_ha_msg msg; 5011 5012 mtx_lock(&lun->lun_lock); 5013 ctl_est_ua_all(lun, -1, CTL_UA_CAPACITY_CHANGE); 5014 mtx_unlock(&lun->lun_lock); 5015 if (lun->ctl_softc->ha_mode == CTL_HA_MODE_XFER) { 5016 /* Send msg to other side. */ 5017 bzero(&msg.ua, sizeof(msg.ua)); 5018 msg.hdr.msg_type = CTL_MSG_UA; 5019 msg.hdr.nexus.initid = -1; 5020 msg.hdr.nexus.targ_port = -1; 5021 msg.hdr.nexus.targ_lun = lun->lun; 5022 msg.hdr.nexus.targ_mapped_lun = lun->lun; 5023 msg.ua.ua_all = 1; 5024 msg.ua.ua_set = 1; 5025 msg.ua.ua_type = CTL_UA_CAPACITY_CHANGE; 5026 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, sizeof(msg.ua), 5027 M_WAITOK); 5028 } 5029} 5030 5031/* 5032 * Backend "memory move is complete" callback for requests that never 5033 * make it down to say RAIDCore's configuration code. 5034 */ 5035int 5036ctl_config_move_done(union ctl_io *io) 5037{ 5038 int retval; 5039 5040 CTL_DEBUG_PRINT(("ctl_config_move_done\n")); 5041 KASSERT(io->io_hdr.io_type == CTL_IO_SCSI, 5042 ("Config I/O type isn't CTL_IO_SCSI (%d)!", io->io_hdr.io_type)); 5043 5044 if ((io->io_hdr.port_status != 0) && 5045 ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE || 5046 (io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS)) { 5047 /* 5048 * For hardware error sense keys, the sense key 5049 * specific value is defined to be a retry count, 5050 * but we use it to pass back an internal FETD 5051 * error code. XXX KDM Hopefully the FETD is only 5052 * using 16 bits for an error code, since that's 5053 * all the space we have in the sks field. 5054 */ 5055 ctl_set_internal_failure(&io->scsiio, 5056 /*sks_valid*/ 1, 5057 /*retry_count*/ 5058 io->io_hdr.port_status); 5059 } 5060 5061 if (ctl_debug & CTL_DEBUG_CDB_DATA) 5062 ctl_data_print(io); 5063 if (((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_IN) || 5064 ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE && 5065 (io->io_hdr.status & CTL_STATUS_MASK) != CTL_SUCCESS) || 5066 ((io->io_hdr.flags & CTL_FLAG_ABORT) != 0)) { 5067 /* 5068 * XXX KDM just assuming a single pointer here, and not a 5069 * S/G list. If we start using S/G lists for config data, 5070 * we'll need to know how to clean them up here as well. 5071 */ 5072 if (io->io_hdr.flags & CTL_FLAG_ALLOCATED) 5073 free(io->scsiio.kern_data_ptr, M_CTL); 5074 ctl_done(io); 5075 retval = CTL_RETVAL_COMPLETE; 5076 } else { 5077 /* 5078 * XXX KDM now we need to continue data movement. Some 5079 * options: 5080 * - call ctl_scsiio() again? We don't do this for data 5081 * writes, because for those at least we know ahead of 5082 * time where the write will go and how long it is. For 5083 * config writes, though, that information is largely 5084 * contained within the write itself, thus we need to 5085 * parse out the data again. 5086 * 5087 * - Call some other function once the data is in? 5088 */ 5089 5090 /* 5091 * XXX KDM call ctl_scsiio() again for now, and check flag 5092 * bits to see whether we're allocated or not. 5093 */ 5094 retval = ctl_scsiio(&io->scsiio); 5095 } 5096 return (retval); 5097} 5098 5099/* 5100 * This gets called by a backend driver when it is done with a 5101 * data_submit method. 5102 */ 5103void 5104ctl_data_submit_done(union ctl_io *io) 5105{ 5106 /* 5107 * If the IO_CONT flag is set, we need to call the supplied 5108 * function to continue processing the I/O, instead of completing 5109 * the I/O just yet. 5110 * 5111 * If there is an error, though, we don't want to keep processing. 5112 * Instead, just send status back to the initiator. 5113 */ 5114 if ((io->io_hdr.flags & CTL_FLAG_IO_CONT) && 5115 (io->io_hdr.flags & CTL_FLAG_ABORT) == 0 && 5116 ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE || 5117 (io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS)) { 5118 io->scsiio.io_cont(io); 5119 return; 5120 } 5121 ctl_done(io); 5122} 5123 5124/* 5125 * This gets called by a backend driver when it is done with a 5126 * configuration write. 5127 */ 5128void 5129ctl_config_write_done(union ctl_io *io) 5130{ 5131 uint8_t *buf; 5132 5133 /* 5134 * If the IO_CONT flag is set, we need to call the supplied 5135 * function to continue processing the I/O, instead of completing 5136 * the I/O just yet. 5137 * 5138 * If there is an error, though, we don't want to keep processing. 5139 * Instead, just send status back to the initiator. 5140 */ 5141 if ((io->io_hdr.flags & CTL_FLAG_IO_CONT) && 5142 (io->io_hdr.flags & CTL_FLAG_ABORT) == 0 && 5143 ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE || 5144 (io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS)) { 5145 io->scsiio.io_cont(io); 5146 return; 5147 } 5148 /* 5149 * Since a configuration write can be done for commands that actually 5150 * have data allocated, like write buffer, and commands that have 5151 * no data, like start/stop unit, we need to check here. 5152 */ 5153 if (io->io_hdr.flags & CTL_FLAG_ALLOCATED) 5154 buf = io->scsiio.kern_data_ptr; 5155 else 5156 buf = NULL; 5157 ctl_done(io); 5158 if (buf) 5159 free(buf, M_CTL); 5160} 5161 5162void 5163ctl_config_read_done(union ctl_io *io) 5164{ 5165 uint8_t *buf; 5166 5167 /* 5168 * If there is some error -- we are done, skip data transfer. 5169 */ 5170 if ((io->io_hdr.flags & CTL_FLAG_ABORT) != 0 || 5171 ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE && 5172 (io->io_hdr.status & CTL_STATUS_MASK) != CTL_SUCCESS)) { 5173 if (io->io_hdr.flags & CTL_FLAG_ALLOCATED) 5174 buf = io->scsiio.kern_data_ptr; 5175 else 5176 buf = NULL; 5177 ctl_done(io); 5178 if (buf) 5179 free(buf, M_CTL); 5180 return; 5181 } 5182 5183 /* 5184 * If the IO_CONT flag is set, we need to call the supplied 5185 * function to continue processing the I/O, instead of completing 5186 * the I/O just yet. 5187 */ 5188 if (io->io_hdr.flags & CTL_FLAG_IO_CONT) { 5189 io->scsiio.io_cont(io); 5190 return; 5191 } 5192 5193 ctl_datamove(io); 5194} 5195 5196/* 5197 * SCSI release command. 5198 */ 5199int 5200ctl_scsi_release(struct ctl_scsiio *ctsio) 5201{ 5202 struct ctl_lun *lun = CTL_LUN(ctsio); 5203 uint32_t residx; 5204 5205 CTL_DEBUG_PRINT(("ctl_scsi_release\n")); 5206 5207 residx = ctl_get_initindex(&ctsio->io_hdr.nexus); 5208 5209 /* 5210 * XXX KDM right now, we only support LUN reservation. We don't 5211 * support 3rd party reservations, or extent reservations, which 5212 * might actually need the parameter list. If we've gotten this 5213 * far, we've got a LUN reservation. Anything else got kicked out 5214 * above. So, according to SPC, ignore the length. 5215 */ 5216 5217 mtx_lock(&lun->lun_lock); 5218 5219 /* 5220 * According to SPC, it is not an error for an intiator to attempt 5221 * to release a reservation on a LUN that isn't reserved, or that 5222 * is reserved by another initiator. The reservation can only be 5223 * released, though, by the initiator who made it or by one of 5224 * several reset type events. 5225 */ 5226 if ((lun->flags & CTL_LUN_RESERVED) && (lun->res_idx == residx)) 5227 lun->flags &= ~CTL_LUN_RESERVED; 5228 5229 mtx_unlock(&lun->lun_lock); 5230 5231 ctl_set_success(ctsio); 5232 ctl_done((union ctl_io *)ctsio); 5233 return (CTL_RETVAL_COMPLETE); 5234} 5235 5236int 5237ctl_scsi_reserve(struct ctl_scsiio *ctsio) 5238{ 5239 struct ctl_lun *lun = CTL_LUN(ctsio); 5240 uint32_t residx; 5241 5242 CTL_DEBUG_PRINT(("ctl_reserve\n")); 5243 5244 residx = ctl_get_initindex(&ctsio->io_hdr.nexus); 5245 5246 /* 5247 * XXX KDM right now, we only support LUN reservation. We don't 5248 * support 3rd party reservations, or extent reservations, which 5249 * might actually need the parameter list. If we've gotten this 5250 * far, we've got a LUN reservation. Anything else got kicked out 5251 * above. So, according to SPC, ignore the length. 5252 */ 5253 5254 mtx_lock(&lun->lun_lock); 5255 if ((lun->flags & CTL_LUN_RESERVED) && (lun->res_idx != residx)) { 5256 ctl_set_reservation_conflict(ctsio); 5257 goto bailout; 5258 } 5259 5260 /* SPC-3 exceptions to SPC-2 RESERVE and RELEASE behavior. */ 5261 if (lun->flags & CTL_LUN_PR_RESERVED) { 5262 ctl_set_success(ctsio); 5263 goto bailout; 5264 } 5265 5266 lun->flags |= CTL_LUN_RESERVED; 5267 lun->res_idx = residx; 5268 ctl_set_success(ctsio); 5269 5270bailout: 5271 mtx_unlock(&lun->lun_lock); 5272 ctl_done((union ctl_io *)ctsio); 5273 return (CTL_RETVAL_COMPLETE); 5274} 5275 5276int 5277ctl_start_stop(struct ctl_scsiio *ctsio) 5278{ 5279 struct ctl_lun *lun = CTL_LUN(ctsio); 5280 struct scsi_start_stop_unit *cdb; 5281 int retval; 5282 5283 CTL_DEBUG_PRINT(("ctl_start_stop\n")); 5284 5285 cdb = (struct scsi_start_stop_unit *)ctsio->cdb; 5286 5287 if ((cdb->how & SSS_PC_MASK) == 0) { 5288 if ((lun->flags & CTL_LUN_PR_RESERVED) && 5289 (cdb->how & SSS_START) == 0) { 5290 uint32_t residx; 5291 5292 residx = ctl_get_initindex(&ctsio->io_hdr.nexus); 5293 if (ctl_get_prkey(lun, residx) == 0 || 5294 (lun->pr_res_idx != residx && lun->pr_res_type < 4)) { 5295 5296 ctl_set_reservation_conflict(ctsio); 5297 ctl_done((union ctl_io *)ctsio); 5298 return (CTL_RETVAL_COMPLETE); 5299 } 5300 } 5301 5302 if ((cdb->how & SSS_LOEJ) && 5303 (lun->flags & CTL_LUN_REMOVABLE) == 0) { 5304 ctl_set_invalid_field(ctsio, 5305 /*sks_valid*/ 1, 5306 /*command*/ 1, 5307 /*field*/ 4, 5308 /*bit_valid*/ 1, 5309 /*bit*/ 1); 5310 ctl_done((union ctl_io *)ctsio); 5311 return (CTL_RETVAL_COMPLETE); 5312 } 5313 5314 if ((cdb->how & SSS_START) == 0 && (cdb->how & SSS_LOEJ) && 5315 lun->prevent_count > 0) { 5316 /* "Medium removal prevented" */ 5317 ctl_set_sense(ctsio, /*current_error*/ 1, 5318 /*sense_key*/(lun->flags & CTL_LUN_NO_MEDIA) ? 5319 SSD_KEY_NOT_READY : SSD_KEY_ILLEGAL_REQUEST, 5320 /*asc*/ 0x53, /*ascq*/ 0x02, SSD_ELEM_NONE); 5321 ctl_done((union ctl_io *)ctsio); 5322 return (CTL_RETVAL_COMPLETE); 5323 } 5324 } 5325 5326 retval = lun->backend->config_write((union ctl_io *)ctsio); 5327 return (retval); 5328} 5329 5330int 5331ctl_prevent_allow(struct ctl_scsiio *ctsio) 5332{ 5333 struct ctl_lun *lun = CTL_LUN(ctsio); 5334 struct scsi_prevent *cdb; 5335 int retval; 5336 uint32_t initidx; 5337 5338 CTL_DEBUG_PRINT(("ctl_prevent_allow\n")); 5339 5340 cdb = (struct scsi_prevent *)ctsio->cdb; 5341 5342 if ((lun->flags & CTL_LUN_REMOVABLE) == 0 || lun->prevent == NULL) { 5343 ctl_set_invalid_opcode(ctsio); 5344 ctl_done((union ctl_io *)ctsio); 5345 return (CTL_RETVAL_COMPLETE); 5346 } 5347 5348 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 5349 mtx_lock(&lun->lun_lock); 5350 if ((cdb->how & PR_PREVENT) && 5351 ctl_is_set(lun->prevent, initidx) == 0) { 5352 ctl_set_mask(lun->prevent, initidx); 5353 lun->prevent_count++; 5354 } else if ((cdb->how & PR_PREVENT) == 0 && 5355 ctl_is_set(lun->prevent, initidx)) { 5356 ctl_clear_mask(lun->prevent, initidx); 5357 lun->prevent_count--; 5358 } 5359 mtx_unlock(&lun->lun_lock); 5360 retval = lun->backend->config_write((union ctl_io *)ctsio); 5361 return (retval); 5362} 5363 5364/* 5365 * We support the SYNCHRONIZE CACHE command (10 and 16 byte versions), but 5366 * we don't really do anything with the LBA and length fields if the user 5367 * passes them in. Instead we'll just flush out the cache for the entire 5368 * LUN. 5369 */ 5370int 5371ctl_sync_cache(struct ctl_scsiio *ctsio) 5372{ 5373 struct ctl_lun *lun = CTL_LUN(ctsio); 5374 struct ctl_lba_len_flags *lbalen; 5375 uint64_t starting_lba; 5376 uint32_t block_count; 5377 int retval; 5378 uint8_t byte2; 5379 5380 CTL_DEBUG_PRINT(("ctl_sync_cache\n")); 5381 5382 retval = 0; 5383 5384 switch (ctsio->cdb[0]) { 5385 case SYNCHRONIZE_CACHE: { 5386 struct scsi_sync_cache *cdb; 5387 cdb = (struct scsi_sync_cache *)ctsio->cdb; 5388 5389 starting_lba = scsi_4btoul(cdb->begin_lba); 5390 block_count = scsi_2btoul(cdb->lb_count); 5391 byte2 = cdb->byte2; 5392 break; 5393 } 5394 case SYNCHRONIZE_CACHE_16: { 5395 struct scsi_sync_cache_16 *cdb; 5396 cdb = (struct scsi_sync_cache_16 *)ctsio->cdb; 5397 5398 starting_lba = scsi_8btou64(cdb->begin_lba); 5399 block_count = scsi_4btoul(cdb->lb_count); 5400 byte2 = cdb->byte2; 5401 break; 5402 } 5403 default: 5404 ctl_set_invalid_opcode(ctsio); 5405 ctl_done((union ctl_io *)ctsio); 5406 goto bailout; 5407 break; /* NOTREACHED */ 5408 } 5409 5410 /* 5411 * We check the LBA and length, but don't do anything with them. 5412 * A SYNCHRONIZE CACHE will cause the entire cache for this lun to 5413 * get flushed. This check will just help satisfy anyone who wants 5414 * to see an error for an out of range LBA. 5415 */ 5416 if ((starting_lba + block_count) > (lun->be_lun->maxlba + 1)) { 5417 ctl_set_lba_out_of_range(ctsio, 5418 MAX(starting_lba, lun->be_lun->maxlba + 1)); 5419 ctl_done((union ctl_io *)ctsio); 5420 goto bailout; 5421 } 5422 5423 lbalen = (struct ctl_lba_len_flags *)&ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 5424 lbalen->lba = starting_lba; 5425 lbalen->len = block_count; 5426 lbalen->flags = byte2; 5427 retval = lun->backend->config_write((union ctl_io *)ctsio); 5428 5429bailout: 5430 return (retval); 5431} 5432 5433int 5434ctl_format(struct ctl_scsiio *ctsio) 5435{ 5436 struct scsi_format *cdb; 5437 int length, defect_list_len; 5438 5439 CTL_DEBUG_PRINT(("ctl_format\n")); 5440 5441 cdb = (struct scsi_format *)ctsio->cdb; 5442 5443 length = 0; 5444 if (cdb->byte2 & SF_FMTDATA) { 5445 if (cdb->byte2 & SF_LONGLIST) 5446 length = sizeof(struct scsi_format_header_long); 5447 else 5448 length = sizeof(struct scsi_format_header_short); 5449 } 5450 5451 if (((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) 5452 && (length > 0)) { 5453 ctsio->kern_data_ptr = malloc(length, M_CTL, M_WAITOK); 5454 ctsio->kern_data_len = length; 5455 ctsio->kern_total_len = length; 5456 ctsio->kern_data_resid = 0; 5457 ctsio->kern_rel_offset = 0; 5458 ctsio->kern_sg_entries = 0; 5459 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5460 ctsio->be_move_done = ctl_config_move_done; 5461 ctl_datamove((union ctl_io *)ctsio); 5462 5463 return (CTL_RETVAL_COMPLETE); 5464 } 5465 5466 defect_list_len = 0; 5467 5468 if (cdb->byte2 & SF_FMTDATA) { 5469 if (cdb->byte2 & SF_LONGLIST) { 5470 struct scsi_format_header_long *header; 5471 5472 header = (struct scsi_format_header_long *) 5473 ctsio->kern_data_ptr; 5474 5475 defect_list_len = scsi_4btoul(header->defect_list_len); 5476 if (defect_list_len != 0) { 5477 ctl_set_invalid_field(ctsio, 5478 /*sks_valid*/ 1, 5479 /*command*/ 0, 5480 /*field*/ 2, 5481 /*bit_valid*/ 0, 5482 /*bit*/ 0); 5483 goto bailout; 5484 } 5485 } else { 5486 struct scsi_format_header_short *header; 5487 5488 header = (struct scsi_format_header_short *) 5489 ctsio->kern_data_ptr; 5490 5491 defect_list_len = scsi_2btoul(header->defect_list_len); 5492 if (defect_list_len != 0) { 5493 ctl_set_invalid_field(ctsio, 5494 /*sks_valid*/ 1, 5495 /*command*/ 0, 5496 /*field*/ 2, 5497 /*bit_valid*/ 0, 5498 /*bit*/ 0); 5499 goto bailout; 5500 } 5501 } 5502 } 5503 5504 ctl_set_success(ctsio); 5505bailout: 5506 5507 if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) { 5508 free(ctsio->kern_data_ptr, M_CTL); 5509 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED; 5510 } 5511 5512 ctl_done((union ctl_io *)ctsio); 5513 return (CTL_RETVAL_COMPLETE); 5514} 5515 5516int 5517ctl_read_buffer(struct ctl_scsiio *ctsio) 5518{ 5519 struct ctl_lun *lun = CTL_LUN(ctsio); 5520 uint64_t buffer_offset; 5521 uint32_t len; 5522 uint8_t byte2; 5523 static uint8_t descr[4]; 5524 static uint8_t echo_descr[4] = { 0 }; 5525 5526 CTL_DEBUG_PRINT(("ctl_read_buffer\n")); 5527 5528 switch (ctsio->cdb[0]) { 5529 case READ_BUFFER: { 5530 struct scsi_read_buffer *cdb; 5531 5532 cdb = (struct scsi_read_buffer *)ctsio->cdb; 5533 buffer_offset = scsi_3btoul(cdb->offset); 5534 len = scsi_3btoul(cdb->length); 5535 byte2 = cdb->byte2; 5536 break; 5537 } 5538 case READ_BUFFER_16: { 5539 struct scsi_read_buffer_16 *cdb; 5540 5541 cdb = (struct scsi_read_buffer_16 *)ctsio->cdb; 5542 buffer_offset = scsi_8btou64(cdb->offset); 5543 len = scsi_4btoul(cdb->length); 5544 byte2 = cdb->byte2; 5545 break; 5546 } 5547 default: /* This shouldn't happen. */ 5548 ctl_set_invalid_opcode(ctsio); 5549 ctl_done((union ctl_io *)ctsio); 5550 return (CTL_RETVAL_COMPLETE); 5551 } 5552 5553 if (buffer_offset > CTL_WRITE_BUFFER_SIZE || 5554 buffer_offset + len > CTL_WRITE_BUFFER_SIZE) { 5555 ctl_set_invalid_field(ctsio, 5556 /*sks_valid*/ 1, 5557 /*command*/ 1, 5558 /*field*/ 6, 5559 /*bit_valid*/ 0, 5560 /*bit*/ 0); 5561 ctl_done((union ctl_io *)ctsio); 5562 return (CTL_RETVAL_COMPLETE); 5563 } 5564 5565 if ((byte2 & RWB_MODE) == RWB_MODE_DESCR) { 5566 descr[0] = 0; 5567 scsi_ulto3b(CTL_WRITE_BUFFER_SIZE, &descr[1]); 5568 ctsio->kern_data_ptr = descr; 5569 len = min(len, sizeof(descr)); 5570 } else if ((byte2 & RWB_MODE) == RWB_MODE_ECHO_DESCR) { 5571 ctsio->kern_data_ptr = echo_descr; 5572 len = min(len, sizeof(echo_descr)); 5573 } else { 5574 if (lun->write_buffer == NULL) { 5575 lun->write_buffer = malloc(CTL_WRITE_BUFFER_SIZE, 5576 M_CTL, M_WAITOK); 5577 } 5578 ctsio->kern_data_ptr = lun->write_buffer + buffer_offset; 5579 } 5580 ctsio->kern_data_len = len; 5581 ctsio->kern_total_len = len; 5582 ctsio->kern_data_resid = 0; 5583 ctsio->kern_rel_offset = 0; 5584 ctsio->kern_sg_entries = 0; 5585 ctl_set_success(ctsio); 5586 ctsio->be_move_done = ctl_config_move_done; 5587 ctl_datamove((union ctl_io *)ctsio); 5588 return (CTL_RETVAL_COMPLETE); 5589} 5590 5591int 5592ctl_write_buffer(struct ctl_scsiio *ctsio) 5593{ 5594 struct ctl_lun *lun = CTL_LUN(ctsio); 5595 struct scsi_write_buffer *cdb; 5596 int buffer_offset, len; 5597 5598 CTL_DEBUG_PRINT(("ctl_write_buffer\n")); 5599 5600 cdb = (struct scsi_write_buffer *)ctsio->cdb; 5601 5602 len = scsi_3btoul(cdb->length); 5603 buffer_offset = scsi_3btoul(cdb->offset); 5604 5605 if (buffer_offset + len > CTL_WRITE_BUFFER_SIZE) { 5606 ctl_set_invalid_field(ctsio, 5607 /*sks_valid*/ 1, 5608 /*command*/ 1, 5609 /*field*/ 6, 5610 /*bit_valid*/ 0, 5611 /*bit*/ 0); 5612 ctl_done((union ctl_io *)ctsio); 5613 return (CTL_RETVAL_COMPLETE); 5614 } 5615 5616 /* 5617 * If we've got a kernel request that hasn't been malloced yet, 5618 * malloc it and tell the caller the data buffer is here. 5619 */ 5620 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 5621 if (lun->write_buffer == NULL) { 5622 lun->write_buffer = malloc(CTL_WRITE_BUFFER_SIZE, 5623 M_CTL, M_WAITOK); 5624 } 5625 ctsio->kern_data_ptr = lun->write_buffer + buffer_offset; 5626 ctsio->kern_data_len = len; 5627 ctsio->kern_total_len = len; 5628 ctsio->kern_data_resid = 0; 5629 ctsio->kern_rel_offset = 0; 5630 ctsio->kern_sg_entries = 0; 5631 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5632 ctsio->be_move_done = ctl_config_move_done; 5633 ctl_datamove((union ctl_io *)ctsio); 5634 5635 return (CTL_RETVAL_COMPLETE); 5636 } 5637 5638 ctl_set_success(ctsio); 5639 ctl_done((union ctl_io *)ctsio); 5640 return (CTL_RETVAL_COMPLETE); 5641} 5642 5643int 5644ctl_write_same(struct ctl_scsiio *ctsio) 5645{ 5646 struct ctl_lun *lun = CTL_LUN(ctsio); 5647 struct ctl_lba_len_flags *lbalen; 5648 uint64_t lba; 5649 uint32_t num_blocks; 5650 int len, retval; 5651 uint8_t byte2; 5652 5653 CTL_DEBUG_PRINT(("ctl_write_same\n")); 5654 5655 switch (ctsio->cdb[0]) { 5656 case WRITE_SAME_10: { 5657 struct scsi_write_same_10 *cdb; 5658 5659 cdb = (struct scsi_write_same_10 *)ctsio->cdb; 5660 5661 lba = scsi_4btoul(cdb->addr); 5662 num_blocks = scsi_2btoul(cdb->length); 5663 byte2 = cdb->byte2; 5664 break; 5665 } 5666 case WRITE_SAME_16: { 5667 struct scsi_write_same_16 *cdb; 5668 5669 cdb = (struct scsi_write_same_16 *)ctsio->cdb; 5670 5671 lba = scsi_8btou64(cdb->addr); 5672 num_blocks = scsi_4btoul(cdb->length); 5673 byte2 = cdb->byte2; 5674 break; 5675 } 5676 default: 5677 /* 5678 * We got a command we don't support. This shouldn't 5679 * happen, commands should be filtered out above us. 5680 */ 5681 ctl_set_invalid_opcode(ctsio); 5682 ctl_done((union ctl_io *)ctsio); 5683 5684 return (CTL_RETVAL_COMPLETE); 5685 break; /* NOTREACHED */ 5686 } 5687 5688 /* ANCHOR flag can be used only together with UNMAP */ 5689 if ((byte2 & SWS_UNMAP) == 0 && (byte2 & SWS_ANCHOR) != 0) { 5690 ctl_set_invalid_field(ctsio, /*sks_valid*/ 1, 5691 /*command*/ 1, /*field*/ 1, /*bit_valid*/ 1, /*bit*/ 0); 5692 ctl_done((union ctl_io *)ctsio); 5693 return (CTL_RETVAL_COMPLETE); 5694 } 5695 5696 /* 5697 * The first check is to make sure we're in bounds, the second 5698 * check is to catch wrap-around problems. If the lba + num blocks 5699 * is less than the lba, then we've wrapped around and the block 5700 * range is invalid anyway. 5701 */ 5702 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 5703 || ((lba + num_blocks) < lba)) { 5704 ctl_set_lba_out_of_range(ctsio, 5705 MAX(lba, lun->be_lun->maxlba + 1)); 5706 ctl_done((union ctl_io *)ctsio); 5707 return (CTL_RETVAL_COMPLETE); 5708 } 5709 5710 /* Zero number of blocks means "to the last logical block" */ 5711 if (num_blocks == 0) { 5712 if ((lun->be_lun->maxlba + 1) - lba > UINT32_MAX) { 5713 ctl_set_invalid_field(ctsio, 5714 /*sks_valid*/ 0, 5715 /*command*/ 1, 5716 /*field*/ 0, 5717 /*bit_valid*/ 0, 5718 /*bit*/ 0); 5719 ctl_done((union ctl_io *)ctsio); 5720 return (CTL_RETVAL_COMPLETE); 5721 } 5722 num_blocks = (lun->be_lun->maxlba + 1) - lba; 5723 } 5724 5725 len = lun->be_lun->blocksize; 5726 5727 /* 5728 * If we've got a kernel request that hasn't been malloced yet, 5729 * malloc it and tell the caller the data buffer is here. 5730 */ 5731 if ((byte2 & SWS_NDOB) == 0 && 5732 (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 5733 ctsio->kern_data_ptr = malloc(len, M_CTL, M_WAITOK); 5734 ctsio->kern_data_len = len; 5735 ctsio->kern_total_len = len; 5736 ctsio->kern_data_resid = 0; 5737 ctsio->kern_rel_offset = 0; 5738 ctsio->kern_sg_entries = 0; 5739 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5740 ctsio->be_move_done = ctl_config_move_done; 5741 ctl_datamove((union ctl_io *)ctsio); 5742 5743 return (CTL_RETVAL_COMPLETE); 5744 } 5745 5746 lbalen = (struct ctl_lba_len_flags *)&ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 5747 lbalen->lba = lba; 5748 lbalen->len = num_blocks; 5749 lbalen->flags = byte2; 5750 retval = lun->backend->config_write((union ctl_io *)ctsio); 5751 5752 return (retval); 5753} 5754 5755int 5756ctl_unmap(struct ctl_scsiio *ctsio) 5757{ 5758 struct ctl_lun *lun = CTL_LUN(ctsio); 5759 struct scsi_unmap *cdb; 5760 struct ctl_ptr_len_flags *ptrlen; 5761 struct scsi_unmap_header *hdr; 5762 struct scsi_unmap_desc *buf, *end, *endnz, *range; 5763 uint64_t lba; 5764 uint32_t num_blocks; 5765 int len, retval; 5766 uint8_t byte2; 5767 5768 CTL_DEBUG_PRINT(("ctl_unmap\n")); 5769 5770 cdb = (struct scsi_unmap *)ctsio->cdb; 5771 len = scsi_2btoul(cdb->length); 5772 byte2 = cdb->byte2; 5773 5774 /* 5775 * If we've got a kernel request that hasn't been malloced yet, 5776 * malloc it and tell the caller the data buffer is here. 5777 */ 5778 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 5779 ctsio->kern_data_ptr = malloc(len, M_CTL, M_WAITOK); 5780 ctsio->kern_data_len = len; 5781 ctsio->kern_total_len = len; 5782 ctsio->kern_data_resid = 0; 5783 ctsio->kern_rel_offset = 0; 5784 ctsio->kern_sg_entries = 0; 5785 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5786 ctsio->be_move_done = ctl_config_move_done; 5787 ctl_datamove((union ctl_io *)ctsio); 5788 5789 return (CTL_RETVAL_COMPLETE); 5790 } 5791 5792 len = ctsio->kern_total_len - ctsio->kern_data_resid; 5793 hdr = (struct scsi_unmap_header *)ctsio->kern_data_ptr; 5794 if (len < sizeof (*hdr) || 5795 len < (scsi_2btoul(hdr->length) + sizeof(hdr->length)) || 5796 len < (scsi_2btoul(hdr->desc_length) + sizeof (*hdr)) || 5797 scsi_2btoul(hdr->desc_length) % sizeof(*buf) != 0) { 5798 ctl_set_invalid_field(ctsio, 5799 /*sks_valid*/ 0, 5800 /*command*/ 0, 5801 /*field*/ 0, 5802 /*bit_valid*/ 0, 5803 /*bit*/ 0); 5804 goto done; 5805 } 5806 len = scsi_2btoul(hdr->desc_length); 5807 buf = (struct scsi_unmap_desc *)(hdr + 1); 5808 end = buf + len / sizeof(*buf); 5809 5810 endnz = buf; 5811 for (range = buf; range < end; range++) { 5812 lba = scsi_8btou64(range->lba); 5813 num_blocks = scsi_4btoul(range->length); 5814 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 5815 || ((lba + num_blocks) < lba)) { 5816 ctl_set_lba_out_of_range(ctsio, 5817 MAX(lba, lun->be_lun->maxlba + 1)); 5818 ctl_done((union ctl_io *)ctsio); 5819 return (CTL_RETVAL_COMPLETE); 5820 } 5821 if (num_blocks != 0) 5822 endnz = range + 1; 5823 } 5824 5825 /* 5826 * Block backend can not handle zero last range. 5827 * Filter it out and return if there is nothing left. 5828 */ 5829 len = (uint8_t *)endnz - (uint8_t *)buf; 5830 if (len == 0) { 5831 ctl_set_success(ctsio); 5832 goto done; 5833 } 5834 5835 mtx_lock(&lun->lun_lock); 5836 ptrlen = (struct ctl_ptr_len_flags *) 5837 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 5838 ptrlen->ptr = (void *)buf; 5839 ptrlen->len = len; 5840 ptrlen->flags = byte2; 5841 ctl_check_blocked(lun); 5842 mtx_unlock(&lun->lun_lock); 5843 5844 retval = lun->backend->config_write((union ctl_io *)ctsio); 5845 return (retval); 5846 5847done: 5848 if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) { 5849 free(ctsio->kern_data_ptr, M_CTL); 5850 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED; 5851 } 5852 ctl_done((union ctl_io *)ctsio); 5853 return (CTL_RETVAL_COMPLETE); 5854} 5855 5856int 5857ctl_default_page_handler(struct ctl_scsiio *ctsio, 5858 struct ctl_page_index *page_index, uint8_t *page_ptr) 5859{ 5860 struct ctl_lun *lun = CTL_LUN(ctsio); 5861 uint8_t *current_cp; 5862 int set_ua; 5863 uint32_t initidx; 5864 5865 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 5866 set_ua = 0; 5867 5868 current_cp = (page_index->page_data + (page_index->page_len * 5869 CTL_PAGE_CURRENT)); 5870 5871 mtx_lock(&lun->lun_lock); 5872 if (memcmp(current_cp, page_ptr, page_index->page_len)) { 5873 memcpy(current_cp, page_ptr, page_index->page_len); 5874 set_ua = 1; 5875 } 5876 if (set_ua != 0) 5877 ctl_est_ua_all(lun, initidx, CTL_UA_MODE_CHANGE); 5878 mtx_unlock(&lun->lun_lock); 5879 if (set_ua) { 5880 ctl_isc_announce_mode(lun, 5881 ctl_get_initindex(&ctsio->io_hdr.nexus), 5882 page_index->page_code, page_index->subpage); 5883 } 5884 return (CTL_RETVAL_COMPLETE); 5885} 5886 5887static void 5888ctl_ie_timer(void *arg) 5889{ 5890 struct ctl_lun *lun = arg; 5891 uint64_t t; 5892 5893 if (lun->ie_asc == 0) 5894 return; 5895 5896 if (lun->MODE_IE.mrie == SIEP_MRIE_UA) 5897 ctl_est_ua_all(lun, -1, CTL_UA_IE); 5898 else 5899 lun->ie_reported = 0; 5900 5901 if (lun->ie_reportcnt < scsi_4btoul(lun->MODE_IE.report_count)) { 5902 lun->ie_reportcnt++; 5903 t = scsi_4btoul(lun->MODE_IE.interval_timer); 5904 if (t == 0 || t == UINT32_MAX) 5905 t = 3000; /* 5 min */ 5906 callout_schedule(&lun->ie_callout, t * hz / 10); 5907 } 5908} 5909 5910int 5911ctl_ie_page_handler(struct ctl_scsiio *ctsio, 5912 struct ctl_page_index *page_index, uint8_t *page_ptr) 5913{ 5914 struct ctl_lun *lun = CTL_LUN(ctsio); 5915 struct scsi_info_exceptions_page *pg; 5916 uint64_t t; 5917 5918 (void)ctl_default_page_handler(ctsio, page_index, page_ptr); 5919 5920 pg = (struct scsi_info_exceptions_page *)page_ptr; 5921 mtx_lock(&lun->lun_lock); 5922 if (pg->info_flags & SIEP_FLAGS_TEST) { 5923 lun->ie_asc = 0x5d; 5924 lun->ie_ascq = 0xff; 5925 if (pg->mrie == SIEP_MRIE_UA) { 5926 ctl_est_ua_all(lun, -1, CTL_UA_IE); 5927 lun->ie_reported = 1; 5928 } else { 5929 ctl_clr_ua_all(lun, -1, CTL_UA_IE); 5930 lun->ie_reported = -1; 5931 } 5932 lun->ie_reportcnt = 1; 5933 if (lun->ie_reportcnt < scsi_4btoul(pg->report_count)) { 5934 lun->ie_reportcnt++; 5935 t = scsi_4btoul(pg->interval_timer); 5936 if (t == 0 || t == UINT32_MAX) 5937 t = 3000; /* 5 min */ 5938 callout_reset(&lun->ie_callout, t * hz / 10, 5939 ctl_ie_timer, lun); 5940 } 5941 } else { 5942 lun->ie_asc = 0; 5943 lun->ie_ascq = 0; 5944 lun->ie_reported = 1; 5945 ctl_clr_ua_all(lun, -1, CTL_UA_IE); 5946 lun->ie_reportcnt = UINT32_MAX; 5947 callout_stop(&lun->ie_callout); 5948 } 5949 mtx_unlock(&lun->lun_lock); 5950 return (CTL_RETVAL_COMPLETE); 5951} 5952 5953static int 5954ctl_do_mode_select(union ctl_io *io) 5955{ 5956 struct ctl_lun *lun = CTL_LUN(io); 5957 struct scsi_mode_page_header *page_header; 5958 struct ctl_page_index *page_index; 5959 struct ctl_scsiio *ctsio; 5960 int page_len, page_len_offset, page_len_size; 5961 union ctl_modepage_info *modepage_info; 5962 uint16_t *len_left, *len_used; 5963 int retval, i; 5964 5965 ctsio = &io->scsiio; 5966 page_index = NULL; 5967 page_len = 0; 5968 5969 modepage_info = (union ctl_modepage_info *) 5970 ctsio->io_hdr.ctl_private[CTL_PRIV_MODEPAGE].bytes; 5971 len_left = &modepage_info->header.len_left; 5972 len_used = &modepage_info->header.len_used; 5973 5974do_next_page: 5975 5976 page_header = (struct scsi_mode_page_header *) 5977 (ctsio->kern_data_ptr + *len_used); 5978 5979 if (*len_left == 0) { 5980 free(ctsio->kern_data_ptr, M_CTL); 5981 ctl_set_success(ctsio); 5982 ctl_done((union ctl_io *)ctsio); 5983 return (CTL_RETVAL_COMPLETE); 5984 } else if (*len_left < sizeof(struct scsi_mode_page_header)) { 5985 5986 free(ctsio->kern_data_ptr, M_CTL); 5987 ctl_set_param_len_error(ctsio); 5988 ctl_done((union ctl_io *)ctsio); 5989 return (CTL_RETVAL_COMPLETE); 5990 5991 } else if ((page_header->page_code & SMPH_SPF) 5992 && (*len_left < sizeof(struct scsi_mode_page_header_sp))) { 5993 5994 free(ctsio->kern_data_ptr, M_CTL); 5995 ctl_set_param_len_error(ctsio); 5996 ctl_done((union ctl_io *)ctsio); 5997 return (CTL_RETVAL_COMPLETE); 5998 } 5999 6000 6001 /* 6002 * XXX KDM should we do something with the block descriptor? 6003 */ 6004 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6005 page_index = &lun->mode_pages.index[i]; 6006 if (lun->be_lun->lun_type == T_DIRECT && 6007 (page_index->page_flags & CTL_PAGE_FLAG_DIRECT) == 0) 6008 continue; 6009 if (lun->be_lun->lun_type == T_PROCESSOR && 6010 (page_index->page_flags & CTL_PAGE_FLAG_PROC) == 0) 6011 continue; 6012 if (lun->be_lun->lun_type == T_CDROM && 6013 (page_index->page_flags & CTL_PAGE_FLAG_CDROM) == 0) 6014 continue; 6015 6016 if ((page_index->page_code & SMPH_PC_MASK) != 6017 (page_header->page_code & SMPH_PC_MASK)) 6018 continue; 6019 6020 /* 6021 * If neither page has a subpage code, then we've got a 6022 * match. 6023 */ 6024 if (((page_index->page_code & SMPH_SPF) == 0) 6025 && ((page_header->page_code & SMPH_SPF) == 0)) { 6026 page_len = page_header->page_length; 6027 break; 6028 } 6029 6030 /* 6031 * If both pages have subpages, then the subpage numbers 6032 * have to match. 6033 */ 6034 if ((page_index->page_code & SMPH_SPF) 6035 && (page_header->page_code & SMPH_SPF)) { 6036 struct scsi_mode_page_header_sp *sph; 6037 6038 sph = (struct scsi_mode_page_header_sp *)page_header; 6039 if (page_index->subpage == sph->subpage) { 6040 page_len = scsi_2btoul(sph->page_length); 6041 break; 6042 } 6043 } 6044 } 6045 6046 /* 6047 * If we couldn't find the page, or if we don't have a mode select 6048 * handler for it, send back an error to the user. 6049 */ 6050 if ((i >= CTL_NUM_MODE_PAGES) 6051 || (page_index->select_handler == NULL)) { 6052 ctl_set_invalid_field(ctsio, 6053 /*sks_valid*/ 1, 6054 /*command*/ 0, 6055 /*field*/ *len_used, 6056 /*bit_valid*/ 0, 6057 /*bit*/ 0); 6058 free(ctsio->kern_data_ptr, M_CTL); 6059 ctl_done((union ctl_io *)ctsio); 6060 return (CTL_RETVAL_COMPLETE); 6061 } 6062 6063 if (page_index->page_code & SMPH_SPF) { 6064 page_len_offset = 2; 6065 page_len_size = 2; 6066 } else { 6067 page_len_size = 1; 6068 page_len_offset = 1; 6069 } 6070 6071 /* 6072 * If the length the initiator gives us isn't the one we specify in 6073 * the mode page header, or if they didn't specify enough data in 6074 * the CDB to avoid truncating this page, kick out the request. 6075 */ 6076 if (page_len != page_index->page_len - page_len_offset - page_len_size) { 6077 ctl_set_invalid_field(ctsio, 6078 /*sks_valid*/ 1, 6079 /*command*/ 0, 6080 /*field*/ *len_used + page_len_offset, 6081 /*bit_valid*/ 0, 6082 /*bit*/ 0); 6083 free(ctsio->kern_data_ptr, M_CTL); 6084 ctl_done((union ctl_io *)ctsio); 6085 return (CTL_RETVAL_COMPLETE); 6086 } 6087 if (*len_left < page_index->page_len) { 6088 free(ctsio->kern_data_ptr, M_CTL); 6089 ctl_set_param_len_error(ctsio); 6090 ctl_done((union ctl_io *)ctsio); 6091 return (CTL_RETVAL_COMPLETE); 6092 } 6093 6094 /* 6095 * Run through the mode page, checking to make sure that the bits 6096 * the user changed are actually legal for him to change. 6097 */ 6098 for (i = 0; i < page_index->page_len; i++) { 6099 uint8_t *user_byte, *change_mask, *current_byte; 6100 int bad_bit; 6101 int j; 6102 6103 user_byte = (uint8_t *)page_header + i; 6104 change_mask = page_index->page_data + 6105 (page_index->page_len * CTL_PAGE_CHANGEABLE) + i; 6106 current_byte = page_index->page_data + 6107 (page_index->page_len * CTL_PAGE_CURRENT) + i; 6108 6109 /* 6110 * Check to see whether the user set any bits in this byte 6111 * that he is not allowed to set. 6112 */ 6113 if ((*user_byte & ~(*change_mask)) == 6114 (*current_byte & ~(*change_mask))) 6115 continue; 6116 6117 /* 6118 * Go through bit by bit to determine which one is illegal. 6119 */ 6120 bad_bit = 0; 6121 for (j = 7; j >= 0; j--) { 6122 if ((((1 << i) & ~(*change_mask)) & *user_byte) != 6123 (((1 << i) & ~(*change_mask)) & *current_byte)) { 6124 bad_bit = i; 6125 break; 6126 } 6127 } 6128 ctl_set_invalid_field(ctsio, 6129 /*sks_valid*/ 1, 6130 /*command*/ 0, 6131 /*field*/ *len_used + i, 6132 /*bit_valid*/ 1, 6133 /*bit*/ bad_bit); 6134 free(ctsio->kern_data_ptr, M_CTL); 6135 ctl_done((union ctl_io *)ctsio); 6136 return (CTL_RETVAL_COMPLETE); 6137 } 6138 6139 /* 6140 * Decrement these before we call the page handler, since we may 6141 * end up getting called back one way or another before the handler 6142 * returns to this context. 6143 */ 6144 *len_left -= page_index->page_len; 6145 *len_used += page_index->page_len; 6146 6147 retval = page_index->select_handler(ctsio, page_index, 6148 (uint8_t *)page_header); 6149 6150 /* 6151 * If the page handler returns CTL_RETVAL_QUEUED, then we need to 6152 * wait until this queued command completes to finish processing 6153 * the mode page. If it returns anything other than 6154 * CTL_RETVAL_COMPLETE (e.g. CTL_RETVAL_ERROR), then it should have 6155 * already set the sense information, freed the data pointer, and 6156 * completed the io for us. 6157 */ 6158 if (retval != CTL_RETVAL_COMPLETE) 6159 goto bailout_no_done; 6160 6161 /* 6162 * If the initiator sent us more than one page, parse the next one. 6163 */ 6164 if (*len_left > 0) 6165 goto do_next_page; 6166 6167 ctl_set_success(ctsio); 6168 free(ctsio->kern_data_ptr, M_CTL); 6169 ctl_done((union ctl_io *)ctsio); 6170 6171bailout_no_done: 6172 6173 return (CTL_RETVAL_COMPLETE); 6174 6175} 6176 6177int 6178ctl_mode_select(struct ctl_scsiio *ctsio) 6179{ 6180 struct ctl_lun *lun = CTL_LUN(ctsio); 6181 union ctl_modepage_info *modepage_info; 6182 int bd_len, i, header_size, param_len, pf, rtd, sp; 6183 uint32_t initidx; 6184 6185 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 6186 switch (ctsio->cdb[0]) { 6187 case MODE_SELECT_6: { 6188 struct scsi_mode_select_6 *cdb; 6189 6190 cdb = (struct scsi_mode_select_6 *)ctsio->cdb; 6191 6192 pf = (cdb->byte2 & SMS_PF) ? 1 : 0; 6193 rtd = (cdb->byte2 & SMS_RTD) ? 1 : 0; 6194 sp = (cdb->byte2 & SMS_SP) ? 1 : 0; 6195 param_len = cdb->length; 6196 header_size = sizeof(struct scsi_mode_header_6); 6197 break; 6198 } 6199 case MODE_SELECT_10: { 6200 struct scsi_mode_select_10 *cdb; 6201 6202 cdb = (struct scsi_mode_select_10 *)ctsio->cdb; 6203 6204 pf = (cdb->byte2 & SMS_PF) ? 1 : 0; 6205 rtd = (cdb->byte2 & SMS_RTD) ? 1 : 0; 6206 sp = (cdb->byte2 & SMS_SP) ? 1 : 0; 6207 param_len = scsi_2btoul(cdb->length); 6208 header_size = sizeof(struct scsi_mode_header_10); 6209 break; 6210 } 6211 default: 6212 ctl_set_invalid_opcode(ctsio); 6213 ctl_done((union ctl_io *)ctsio); 6214 return (CTL_RETVAL_COMPLETE); 6215 } 6216 6217 if (rtd) { 6218 if (param_len != 0) { 6219 ctl_set_invalid_field(ctsio, /*sks_valid*/ 0, 6220 /*command*/ 1, /*field*/ 0, 6221 /*bit_valid*/ 0, /*bit*/ 0); 6222 ctl_done((union ctl_io *)ctsio); 6223 return (CTL_RETVAL_COMPLETE); 6224 } 6225 6226 /* Revert to defaults. */ 6227 ctl_init_page_index(lun); 6228 mtx_lock(&lun->lun_lock); 6229 ctl_est_ua_all(lun, initidx, CTL_UA_MODE_CHANGE); 6230 mtx_unlock(&lun->lun_lock); 6231 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6232 ctl_isc_announce_mode(lun, -1, 6233 lun->mode_pages.index[i].page_code & SMPH_PC_MASK, 6234 lun->mode_pages.index[i].subpage); 6235 } 6236 ctl_set_success(ctsio); 6237 ctl_done((union ctl_io *)ctsio); 6238 return (CTL_RETVAL_COMPLETE); 6239 } 6240 6241 /* 6242 * From SPC-3: 6243 * "A parameter list length of zero indicates that the Data-Out Buffer 6244 * shall be empty. This condition shall not be considered as an error." 6245 */ 6246 if (param_len == 0) { 6247 ctl_set_success(ctsio); 6248 ctl_done((union ctl_io *)ctsio); 6249 return (CTL_RETVAL_COMPLETE); 6250 } 6251 6252 /* 6253 * Since we'll hit this the first time through, prior to 6254 * allocation, we don't need to free a data buffer here. 6255 */ 6256 if (param_len < header_size) { 6257 ctl_set_param_len_error(ctsio); 6258 ctl_done((union ctl_io *)ctsio); 6259 return (CTL_RETVAL_COMPLETE); 6260 } 6261 6262 /* 6263 * Allocate the data buffer and grab the user's data. In theory, 6264 * we shouldn't have to sanity check the parameter list length here 6265 * because the maximum size is 64K. We should be able to malloc 6266 * that much without too many problems. 6267 */ 6268 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 6269 ctsio->kern_data_ptr = malloc(param_len, M_CTL, M_WAITOK); 6270 ctsio->kern_data_len = param_len; 6271 ctsio->kern_total_len = param_len; 6272 ctsio->kern_data_resid = 0; 6273 ctsio->kern_rel_offset = 0; 6274 ctsio->kern_sg_entries = 0; 6275 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6276 ctsio->be_move_done = ctl_config_move_done; 6277 ctl_datamove((union ctl_io *)ctsio); 6278 6279 return (CTL_RETVAL_COMPLETE); 6280 } 6281 6282 switch (ctsio->cdb[0]) { 6283 case MODE_SELECT_6: { 6284 struct scsi_mode_header_6 *mh6; 6285 6286 mh6 = (struct scsi_mode_header_6 *)ctsio->kern_data_ptr; 6287 bd_len = mh6->blk_desc_len; 6288 break; 6289 } 6290 case MODE_SELECT_10: { 6291 struct scsi_mode_header_10 *mh10; 6292 6293 mh10 = (struct scsi_mode_header_10 *)ctsio->kern_data_ptr; 6294 bd_len = scsi_2btoul(mh10->blk_desc_len); 6295 break; 6296 } 6297 default: 6298 panic("%s: Invalid CDB type %#x", __func__, ctsio->cdb[0]); 6299 } 6300 6301 if (param_len < (header_size + bd_len)) { 6302 free(ctsio->kern_data_ptr, M_CTL); 6303 ctl_set_param_len_error(ctsio); 6304 ctl_done((union ctl_io *)ctsio); 6305 return (CTL_RETVAL_COMPLETE); 6306 } 6307 6308 /* 6309 * Set the IO_CONT flag, so that if this I/O gets passed to 6310 * ctl_config_write_done(), it'll get passed back to 6311 * ctl_do_mode_select() for further processing, or completion if 6312 * we're all done. 6313 */ 6314 ctsio->io_hdr.flags |= CTL_FLAG_IO_CONT; 6315 ctsio->io_cont = ctl_do_mode_select; 6316 6317 modepage_info = (union ctl_modepage_info *) 6318 ctsio->io_hdr.ctl_private[CTL_PRIV_MODEPAGE].bytes; 6319 memset(modepage_info, 0, sizeof(*modepage_info)); 6320 modepage_info->header.len_left = param_len - header_size - bd_len; 6321 modepage_info->header.len_used = header_size + bd_len; 6322 6323 return (ctl_do_mode_select((union ctl_io *)ctsio)); 6324} 6325 6326int 6327ctl_mode_sense(struct ctl_scsiio *ctsio) 6328{ 6329 struct ctl_lun *lun = CTL_LUN(ctsio); 6330 int pc, page_code, dbd, llba, subpage; 6331 int alloc_len, page_len, header_len, total_len; 6332 struct scsi_mode_block_descr *block_desc; 6333 struct ctl_page_index *page_index; 6334 6335 dbd = 0; 6336 llba = 0; 6337 block_desc = NULL; 6338 6339 CTL_DEBUG_PRINT(("ctl_mode_sense\n")); 6340 6341 switch (ctsio->cdb[0]) { 6342 case MODE_SENSE_6: { 6343 struct scsi_mode_sense_6 *cdb; 6344 6345 cdb = (struct scsi_mode_sense_6 *)ctsio->cdb; 6346 6347 header_len = sizeof(struct scsi_mode_hdr_6); 6348 if (cdb->byte2 & SMS_DBD) 6349 dbd = 1; 6350 else 6351 header_len += sizeof(struct scsi_mode_block_descr); 6352 6353 pc = (cdb->page & SMS_PAGE_CTRL_MASK) >> 6; 6354 page_code = cdb->page & SMS_PAGE_CODE; 6355 subpage = cdb->subpage; 6356 alloc_len = cdb->length; 6357 break; 6358 } 6359 case MODE_SENSE_10: { 6360 struct scsi_mode_sense_10 *cdb; 6361 6362 cdb = (struct scsi_mode_sense_10 *)ctsio->cdb; 6363 6364 header_len = sizeof(struct scsi_mode_hdr_10); 6365 6366 if (cdb->byte2 & SMS_DBD) 6367 dbd = 1; 6368 else 6369 header_len += sizeof(struct scsi_mode_block_descr); 6370 if (cdb->byte2 & SMS10_LLBAA) 6371 llba = 1; 6372 pc = (cdb->page & SMS_PAGE_CTRL_MASK) >> 6; 6373 page_code = cdb->page & SMS_PAGE_CODE; 6374 subpage = cdb->subpage; 6375 alloc_len = scsi_2btoul(cdb->length); 6376 break; 6377 } 6378 default: 6379 ctl_set_invalid_opcode(ctsio); 6380 ctl_done((union ctl_io *)ctsio); 6381 return (CTL_RETVAL_COMPLETE); 6382 break; /* NOTREACHED */ 6383 } 6384 6385 /* 6386 * We have to make a first pass through to calculate the size of 6387 * the pages that match the user's query. Then we allocate enough 6388 * memory to hold it, and actually copy the data into the buffer. 6389 */ 6390 switch (page_code) { 6391 case SMS_ALL_PAGES_PAGE: { 6392 u_int i; 6393 6394 page_len = 0; 6395 6396 /* 6397 * At the moment, values other than 0 and 0xff here are 6398 * reserved according to SPC-3. 6399 */ 6400 if ((subpage != SMS_SUBPAGE_PAGE_0) 6401 && (subpage != SMS_SUBPAGE_ALL)) { 6402 ctl_set_invalid_field(ctsio, 6403 /*sks_valid*/ 1, 6404 /*command*/ 1, 6405 /*field*/ 3, 6406 /*bit_valid*/ 0, 6407 /*bit*/ 0); 6408 ctl_done((union ctl_io *)ctsio); 6409 return (CTL_RETVAL_COMPLETE); 6410 } 6411 6412 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6413 page_index = &lun->mode_pages.index[i]; 6414 6415 /* Make sure the page is supported for this dev type */ 6416 if (lun->be_lun->lun_type == T_DIRECT && 6417 (page_index->page_flags & CTL_PAGE_FLAG_DIRECT) == 0) 6418 continue; 6419 if (lun->be_lun->lun_type == T_PROCESSOR && 6420 (page_index->page_flags & CTL_PAGE_FLAG_PROC) == 0) 6421 continue; 6422 if (lun->be_lun->lun_type == T_CDROM && 6423 (page_index->page_flags & CTL_PAGE_FLAG_CDROM) == 0) 6424 continue; 6425 6426 /* 6427 * We don't use this subpage if the user didn't 6428 * request all subpages. 6429 */ 6430 if ((page_index->subpage != 0) 6431 && (subpage == SMS_SUBPAGE_PAGE_0)) 6432 continue; 6433 6434#if 0 6435 printf("found page %#x len %d\n", 6436 page_index->page_code & SMPH_PC_MASK, 6437 page_index->page_len); 6438#endif 6439 page_len += page_index->page_len; 6440 } 6441 break; 6442 } 6443 default: { 6444 u_int i; 6445 6446 page_len = 0; 6447 6448 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6449 page_index = &lun->mode_pages.index[i]; 6450 6451 /* Make sure the page is supported for this dev type */ 6452 if (lun->be_lun->lun_type == T_DIRECT && 6453 (page_index->page_flags & CTL_PAGE_FLAG_DIRECT) == 0) 6454 continue; 6455 if (lun->be_lun->lun_type == T_PROCESSOR && 6456 (page_index->page_flags & CTL_PAGE_FLAG_PROC) == 0) 6457 continue; 6458 if (lun->be_lun->lun_type == T_CDROM && 6459 (page_index->page_flags & CTL_PAGE_FLAG_CDROM) == 0) 6460 continue; 6461 6462 /* Look for the right page code */ 6463 if ((page_index->page_code & SMPH_PC_MASK) != page_code) 6464 continue; 6465 6466 /* Look for the right subpage or the subpage wildcard*/ 6467 if ((page_index->subpage != subpage) 6468 && (subpage != SMS_SUBPAGE_ALL)) 6469 continue; 6470 6471#if 0 6472 printf("found page %#x len %d\n", 6473 page_index->page_code & SMPH_PC_MASK, 6474 page_index->page_len); 6475#endif 6476 6477 page_len += page_index->page_len; 6478 } 6479 6480 if (page_len == 0) { 6481 ctl_set_invalid_field(ctsio, 6482 /*sks_valid*/ 1, 6483 /*command*/ 1, 6484 /*field*/ 2, 6485 /*bit_valid*/ 1, 6486 /*bit*/ 5); 6487 ctl_done((union ctl_io *)ctsio); 6488 return (CTL_RETVAL_COMPLETE); 6489 } 6490 break; 6491 } 6492 } 6493 6494 total_len = header_len + page_len; 6495#if 0 6496 printf("header_len = %d, page_len = %d, total_len = %d\n", 6497 header_len, page_len, total_len); 6498#endif 6499 6500 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 6501 ctsio->kern_sg_entries = 0; 6502 ctsio->kern_data_resid = 0; 6503 ctsio->kern_rel_offset = 0; 6504 if (total_len < alloc_len) { 6505 ctsio->residual = alloc_len - total_len; 6506 ctsio->kern_data_len = total_len; 6507 ctsio->kern_total_len = total_len; 6508 } else { 6509 ctsio->residual = 0; 6510 ctsio->kern_data_len = alloc_len; 6511 ctsio->kern_total_len = alloc_len; 6512 } 6513 6514 switch (ctsio->cdb[0]) { 6515 case MODE_SENSE_6: { 6516 struct scsi_mode_hdr_6 *header; 6517 6518 header = (struct scsi_mode_hdr_6 *)ctsio->kern_data_ptr; 6519 6520 header->datalen = MIN(total_len - 1, 254); 6521 if (lun->be_lun->lun_type == T_DIRECT) { 6522 header->dev_specific = 0x10; /* DPOFUA */ 6523 if ((lun->be_lun->flags & CTL_LUN_FLAG_READONLY) || 6524 (lun->MODE_CTRL.eca_and_aen & SCP_SWP) != 0) 6525 header->dev_specific |= 0x80; /* WP */ 6526 } 6527 if (dbd) 6528 header->block_descr_len = 0; 6529 else 6530 header->block_descr_len = 6531 sizeof(struct scsi_mode_block_descr); 6532 block_desc = (struct scsi_mode_block_descr *)&header[1]; 6533 break; 6534 } 6535 case MODE_SENSE_10: { 6536 struct scsi_mode_hdr_10 *header; 6537 int datalen; 6538 6539 header = (struct scsi_mode_hdr_10 *)ctsio->kern_data_ptr; 6540 6541 datalen = MIN(total_len - 2, 65533); 6542 scsi_ulto2b(datalen, header->datalen); 6543 if (lun->be_lun->lun_type == T_DIRECT) { 6544 header->dev_specific = 0x10; /* DPOFUA */ 6545 if ((lun->be_lun->flags & CTL_LUN_FLAG_READONLY) || 6546 (lun->MODE_CTRL.eca_and_aen & SCP_SWP) != 0) 6547 header->dev_specific |= 0x80; /* WP */ 6548 } 6549 if (dbd) 6550 scsi_ulto2b(0, header->block_descr_len); 6551 else 6552 scsi_ulto2b(sizeof(struct scsi_mode_block_descr), 6553 header->block_descr_len); 6554 block_desc = (struct scsi_mode_block_descr *)&header[1]; 6555 break; 6556 } 6557 default: 6558 panic("%s: Invalid CDB type %#x", __func__, ctsio->cdb[0]); 6559 } 6560 6561 /* 6562 * If we've got a disk, use its blocksize in the block 6563 * descriptor. Otherwise, just set it to 0. 6564 */ 6565 if (dbd == 0) { 6566 if (lun->be_lun->lun_type == T_DIRECT) 6567 scsi_ulto3b(lun->be_lun->blocksize, 6568 block_desc->block_len); 6569 else 6570 scsi_ulto3b(0, block_desc->block_len); 6571 } 6572 6573 switch (page_code) { 6574 case SMS_ALL_PAGES_PAGE: { 6575 int i, data_used; 6576 6577 data_used = header_len; 6578 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6579 struct ctl_page_index *page_index; 6580 6581 page_index = &lun->mode_pages.index[i]; 6582 if (lun->be_lun->lun_type == T_DIRECT && 6583 (page_index->page_flags & CTL_PAGE_FLAG_DIRECT) == 0) 6584 continue; 6585 if (lun->be_lun->lun_type == T_PROCESSOR && 6586 (page_index->page_flags & CTL_PAGE_FLAG_PROC) == 0) 6587 continue; 6588 if (lun->be_lun->lun_type == T_CDROM && 6589 (page_index->page_flags & CTL_PAGE_FLAG_CDROM) == 0) 6590 continue; 6591 6592 /* 6593 * We don't use this subpage if the user didn't 6594 * request all subpages. We already checked (above) 6595 * to make sure the user only specified a subpage 6596 * of 0 or 0xff in the SMS_ALL_PAGES_PAGE case. 6597 */ 6598 if ((page_index->subpage != 0) 6599 && (subpage == SMS_SUBPAGE_PAGE_0)) 6600 continue; 6601 6602 /* 6603 * Call the handler, if it exists, to update the 6604 * page to the latest values. 6605 */ 6606 if (page_index->sense_handler != NULL) 6607 page_index->sense_handler(ctsio, page_index,pc); 6608 6609 memcpy(ctsio->kern_data_ptr + data_used, 6610 page_index->page_data + 6611 (page_index->page_len * pc), 6612 page_index->page_len); 6613 data_used += page_index->page_len; 6614 } 6615 break; 6616 } 6617 default: { 6618 int i, data_used; 6619 6620 data_used = header_len; 6621 6622 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6623 struct ctl_page_index *page_index; 6624 6625 page_index = &lun->mode_pages.index[i]; 6626 6627 /* Look for the right page code */ 6628 if ((page_index->page_code & SMPH_PC_MASK) != page_code) 6629 continue; 6630 6631 /* Look for the right subpage or the subpage wildcard*/ 6632 if ((page_index->subpage != subpage) 6633 && (subpage != SMS_SUBPAGE_ALL)) 6634 continue; 6635 6636 /* Make sure the page is supported for this dev type */ 6637 if (lun->be_lun->lun_type == T_DIRECT && 6638 (page_index->page_flags & CTL_PAGE_FLAG_DIRECT) == 0) 6639 continue; 6640 if (lun->be_lun->lun_type == T_PROCESSOR && 6641 (page_index->page_flags & CTL_PAGE_FLAG_PROC) == 0) 6642 continue; 6643 if (lun->be_lun->lun_type == T_CDROM && 6644 (page_index->page_flags & CTL_PAGE_FLAG_CDROM) == 0) 6645 continue; 6646 6647 /* 6648 * Call the handler, if it exists, to update the 6649 * page to the latest values. 6650 */ 6651 if (page_index->sense_handler != NULL) 6652 page_index->sense_handler(ctsio, page_index,pc); 6653 6654 memcpy(ctsio->kern_data_ptr + data_used, 6655 page_index->page_data + 6656 (page_index->page_len * pc), 6657 page_index->page_len); 6658 data_used += page_index->page_len; 6659 } 6660 break; 6661 } 6662 } 6663 6664 ctl_set_success(ctsio); 6665 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6666 ctsio->be_move_done = ctl_config_move_done; 6667 ctl_datamove((union ctl_io *)ctsio); 6668 return (CTL_RETVAL_COMPLETE); 6669} 6670 6671int 6672ctl_lbp_log_sense_handler(struct ctl_scsiio *ctsio, 6673 struct ctl_page_index *page_index, 6674 int pc) 6675{ 6676 struct ctl_lun *lun = CTL_LUN(ctsio); 6677 struct scsi_log_param_header *phdr; 6678 uint8_t *data; 6679 uint64_t val; 6680 6681 data = page_index->page_data; 6682 6683 if (lun->backend->lun_attr != NULL && 6684 (val = lun->backend->lun_attr(lun->be_lun->be_lun, "blocksavail")) 6685 != UINT64_MAX) { 6686 phdr = (struct scsi_log_param_header *)data; 6687 scsi_ulto2b(0x0001, phdr->param_code); 6688 phdr->param_control = SLP_LBIN | SLP_LP; 6689 phdr->param_len = 8; 6690 data = (uint8_t *)(phdr + 1); 6691 scsi_ulto4b(val >> CTL_LBP_EXPONENT, data); 6692 data[4] = 0x02; /* per-pool */ 6693 data += phdr->param_len; 6694 } 6695 6696 if (lun->backend->lun_attr != NULL && 6697 (val = lun->backend->lun_attr(lun->be_lun->be_lun, "blocksused")) 6698 != UINT64_MAX) { 6699 phdr = (struct scsi_log_param_header *)data; 6700 scsi_ulto2b(0x0002, phdr->param_code); 6701 phdr->param_control = SLP_LBIN | SLP_LP; 6702 phdr->param_len = 8; 6703 data = (uint8_t *)(phdr + 1); 6704 scsi_ulto4b(val >> CTL_LBP_EXPONENT, data); 6705 data[4] = 0x01; /* per-LUN */ 6706 data += phdr->param_len; 6707 } 6708 6709 if (lun->backend->lun_attr != NULL && 6710 (val = lun->backend->lun_attr(lun->be_lun->be_lun, "poolblocksavail")) 6711 != UINT64_MAX) { 6712 phdr = (struct scsi_log_param_header *)data; 6713 scsi_ulto2b(0x00f1, phdr->param_code); 6714 phdr->param_control = SLP_LBIN | SLP_LP; 6715 phdr->param_len = 8; 6716 data = (uint8_t *)(phdr + 1); 6717 scsi_ulto4b(val >> CTL_LBP_EXPONENT, data); 6718 data[4] = 0x02; /* per-pool */ 6719 data += phdr->param_len; 6720 } 6721 6722 if (lun->backend->lun_attr != NULL && 6723 (val = lun->backend->lun_attr(lun->be_lun->be_lun, "poolblocksused")) 6724 != UINT64_MAX) { 6725 phdr = (struct scsi_log_param_header *)data; 6726 scsi_ulto2b(0x00f2, phdr->param_code); 6727 phdr->param_control = SLP_LBIN | SLP_LP; 6728 phdr->param_len = 8; 6729 data = (uint8_t *)(phdr + 1); 6730 scsi_ulto4b(val >> CTL_LBP_EXPONENT, data); 6731 data[4] = 0x02; /* per-pool */ 6732 data += phdr->param_len; 6733 } 6734 6735 page_index->page_len = data - page_index->page_data; 6736 return (0); 6737} 6738 6739int 6740ctl_sap_log_sense_handler(struct ctl_scsiio *ctsio, 6741 struct ctl_page_index *page_index, 6742 int pc) 6743{ 6744 struct ctl_lun *lun = CTL_LUN(ctsio); 6745 struct stat_page *data; 6746 struct bintime *t; 6747 6748 data = (struct stat_page *)page_index->page_data; 6749 6750 scsi_ulto2b(SLP_SAP, data->sap.hdr.param_code); 6751 data->sap.hdr.param_control = SLP_LBIN; 6752 data->sap.hdr.param_len = sizeof(struct scsi_log_stat_and_perf) - 6753 sizeof(struct scsi_log_param_header); 6754 scsi_u64to8b(lun->stats.operations[CTL_STATS_READ], 6755 data->sap.read_num); 6756 scsi_u64to8b(lun->stats.operations[CTL_STATS_WRITE], 6757 data->sap.write_num); 6758 if (lun->be_lun->blocksize > 0) { 6759 scsi_u64to8b(lun->stats.bytes[CTL_STATS_WRITE] / 6760 lun->be_lun->blocksize, data->sap.recvieved_lba); 6761 scsi_u64to8b(lun->stats.bytes[CTL_STATS_READ] / 6762 lun->be_lun->blocksize, data->sap.transmitted_lba); 6763 } 6764 t = &lun->stats.time[CTL_STATS_READ]; 6765 scsi_u64to8b((uint64_t)t->sec * 1000 + t->frac / (UINT64_MAX / 1000), 6766 data->sap.read_int); 6767 t = &lun->stats.time[CTL_STATS_WRITE]; 6768 scsi_u64to8b((uint64_t)t->sec * 1000 + t->frac / (UINT64_MAX / 1000), 6769 data->sap.write_int); 6770 scsi_u64to8b(0, data->sap.weighted_num); 6771 scsi_u64to8b(0, data->sap.weighted_int); 6772 scsi_ulto2b(SLP_IT, data->it.hdr.param_code); 6773 data->it.hdr.param_control = SLP_LBIN; 6774 data->it.hdr.param_len = sizeof(struct scsi_log_idle_time) - 6775 sizeof(struct scsi_log_param_header); 6776#ifdef CTL_TIME_IO 6777 scsi_u64to8b(lun->idle_time / SBT_1MS, data->it.idle_int); 6778#endif 6779 scsi_ulto2b(SLP_TI, data->ti.hdr.param_code); 6780 data->it.hdr.param_control = SLP_LBIN; 6781 data->ti.hdr.param_len = sizeof(struct scsi_log_time_interval) - 6782 sizeof(struct scsi_log_param_header); 6783 scsi_ulto4b(3, data->ti.exponent); 6784 scsi_ulto4b(1, data->ti.integer); 6785 return (0); 6786} 6787 6788int 6789ctl_ie_log_sense_handler(struct ctl_scsiio *ctsio, 6790 struct ctl_page_index *page_index, 6791 int pc) 6792{ 6793 struct ctl_lun *lun = CTL_LUN(ctsio); 6794 struct scsi_log_informational_exceptions *data; 6795 6796 data = (struct scsi_log_informational_exceptions *)page_index->page_data; 6797 6798 scsi_ulto2b(SLP_IE_GEN, data->hdr.param_code); 6799 data->hdr.param_control = SLP_LBIN; 6800 data->hdr.param_len = sizeof(struct scsi_log_informational_exceptions) - 6801 sizeof(struct scsi_log_param_header); 6802 data->ie_asc = lun->ie_asc; 6803 data->ie_ascq = lun->ie_ascq; 6804 data->temperature = 0xff; 6805 return (0); 6806} 6807 6808int 6809ctl_log_sense(struct ctl_scsiio *ctsio) 6810{ 6811 struct ctl_lun *lun = CTL_LUN(ctsio); 6812 int i, pc, page_code, subpage; 6813 int alloc_len, total_len; 6814 struct ctl_page_index *page_index; 6815 struct scsi_log_sense *cdb; 6816 struct scsi_log_header *header; 6817 6818 CTL_DEBUG_PRINT(("ctl_log_sense\n")); 6819 6820 cdb = (struct scsi_log_sense *)ctsio->cdb; 6821 pc = (cdb->page & SLS_PAGE_CTRL_MASK) >> 6; 6822 page_code = cdb->page & SLS_PAGE_CODE; 6823 subpage = cdb->subpage; 6824 alloc_len = scsi_2btoul(cdb->length); 6825 6826 page_index = NULL; 6827 for (i = 0; i < CTL_NUM_LOG_PAGES; i++) { 6828 page_index = &lun->log_pages.index[i]; 6829 6830 /* Look for the right page code */ 6831 if ((page_index->page_code & SL_PAGE_CODE) != page_code) 6832 continue; 6833 6834 /* Look for the right subpage or the subpage wildcard*/ 6835 if (page_index->subpage != subpage) 6836 continue; 6837 6838 break; 6839 } 6840 if (i >= CTL_NUM_LOG_PAGES) { 6841 ctl_set_invalid_field(ctsio, 6842 /*sks_valid*/ 1, 6843 /*command*/ 1, 6844 /*field*/ 2, 6845 /*bit_valid*/ 0, 6846 /*bit*/ 0); 6847 ctl_done((union ctl_io *)ctsio); 6848 return (CTL_RETVAL_COMPLETE); 6849 } 6850 6851 total_len = sizeof(struct scsi_log_header) + page_index->page_len; 6852 6853 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 6854 ctsio->kern_sg_entries = 0; 6855 ctsio->kern_data_resid = 0; 6856 ctsio->kern_rel_offset = 0; 6857 if (total_len < alloc_len) { 6858 ctsio->residual = alloc_len - total_len; 6859 ctsio->kern_data_len = total_len; 6860 ctsio->kern_total_len = total_len; 6861 } else { 6862 ctsio->residual = 0; 6863 ctsio->kern_data_len = alloc_len; 6864 ctsio->kern_total_len = alloc_len; 6865 } 6866 6867 header = (struct scsi_log_header *)ctsio->kern_data_ptr; 6868 header->page = page_index->page_code; 6869 if (page_index->page_code == SLS_LOGICAL_BLOCK_PROVISIONING) 6870 header->page |= SL_DS; 6871 if (page_index->subpage) { 6872 header->page |= SL_SPF; 6873 header->subpage = page_index->subpage; 6874 } 6875 scsi_ulto2b(page_index->page_len, header->datalen); 6876 6877 /* 6878 * Call the handler, if it exists, to update the 6879 * page to the latest values. 6880 */ 6881 if (page_index->sense_handler != NULL) 6882 page_index->sense_handler(ctsio, page_index, pc); 6883 6884 memcpy(header + 1, page_index->page_data, page_index->page_len); 6885 6886 ctl_set_success(ctsio); 6887 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6888 ctsio->be_move_done = ctl_config_move_done; 6889 ctl_datamove((union ctl_io *)ctsio); 6890 return (CTL_RETVAL_COMPLETE); 6891} 6892 6893int 6894ctl_read_capacity(struct ctl_scsiio *ctsio) 6895{ 6896 struct ctl_lun *lun = CTL_LUN(ctsio); 6897 struct scsi_read_capacity *cdb; 6898 struct scsi_read_capacity_data *data; 6899 uint32_t lba; 6900 6901 CTL_DEBUG_PRINT(("ctl_read_capacity\n")); 6902 6903 cdb = (struct scsi_read_capacity *)ctsio->cdb; 6904 6905 lba = scsi_4btoul(cdb->addr); 6906 if (((cdb->pmi & SRC_PMI) == 0) 6907 && (lba != 0)) { 6908 ctl_set_invalid_field(/*ctsio*/ ctsio, 6909 /*sks_valid*/ 1, 6910 /*command*/ 1, 6911 /*field*/ 2, 6912 /*bit_valid*/ 0, 6913 /*bit*/ 0); 6914 ctl_done((union ctl_io *)ctsio); 6915 return (CTL_RETVAL_COMPLETE); 6916 } 6917 6918 ctsio->kern_data_ptr = malloc(sizeof(*data), M_CTL, M_WAITOK | M_ZERO); 6919 data = (struct scsi_read_capacity_data *)ctsio->kern_data_ptr; 6920 ctsio->residual = 0; 6921 ctsio->kern_data_len = sizeof(*data); 6922 ctsio->kern_total_len = sizeof(*data); 6923 ctsio->kern_data_resid = 0; 6924 ctsio->kern_rel_offset = 0; 6925 ctsio->kern_sg_entries = 0; 6926 6927 /* 6928 * If the maximum LBA is greater than 0xfffffffe, the user must 6929 * issue a SERVICE ACTION IN (16) command, with the read capacity 6930 * serivce action set. 6931 */ 6932 if (lun->be_lun->maxlba > 0xfffffffe) 6933 scsi_ulto4b(0xffffffff, data->addr); 6934 else 6935 scsi_ulto4b(lun->be_lun->maxlba, data->addr); 6936 6937 /* 6938 * XXX KDM this may not be 512 bytes... 6939 */ 6940 scsi_ulto4b(lun->be_lun->blocksize, data->length); 6941 6942 ctl_set_success(ctsio); 6943 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6944 ctsio->be_move_done = ctl_config_move_done; 6945 ctl_datamove((union ctl_io *)ctsio); 6946 return (CTL_RETVAL_COMPLETE); 6947} 6948 6949int 6950ctl_read_capacity_16(struct ctl_scsiio *ctsio) 6951{ 6952 struct ctl_lun *lun = CTL_LUN(ctsio); 6953 struct scsi_read_capacity_16 *cdb; 6954 struct scsi_read_capacity_data_long *data; 6955 uint64_t lba; 6956 uint32_t alloc_len; 6957 6958 CTL_DEBUG_PRINT(("ctl_read_capacity_16\n")); 6959 6960 cdb = (struct scsi_read_capacity_16 *)ctsio->cdb; 6961 6962 alloc_len = scsi_4btoul(cdb->alloc_len); 6963 lba = scsi_8btou64(cdb->addr); 6964 6965 if ((cdb->reladr & SRC16_PMI) 6966 && (lba != 0)) { 6967 ctl_set_invalid_field(/*ctsio*/ ctsio, 6968 /*sks_valid*/ 1, 6969 /*command*/ 1, 6970 /*field*/ 2, 6971 /*bit_valid*/ 0, 6972 /*bit*/ 0); 6973 ctl_done((union ctl_io *)ctsio); 6974 return (CTL_RETVAL_COMPLETE); 6975 } 6976 6977 ctsio->kern_data_ptr = malloc(sizeof(*data), M_CTL, M_WAITOK | M_ZERO); 6978 data = (struct scsi_read_capacity_data_long *)ctsio->kern_data_ptr; 6979 6980 if (sizeof(*data) < alloc_len) { 6981 ctsio->residual = alloc_len - sizeof(*data); 6982 ctsio->kern_data_len = sizeof(*data); 6983 ctsio->kern_total_len = sizeof(*data); 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 scsi_u64to8b(lun->be_lun->maxlba, data->addr); 6994 /* XXX KDM this may not be 512 bytes... */ 6995 scsi_ulto4b(lun->be_lun->blocksize, data->length); 6996 data->prot_lbppbe = lun->be_lun->pblockexp & SRC16_LBPPBE; 6997 scsi_ulto2b(lun->be_lun->pblockoff & SRC16_LALBA_A, data->lalba_lbp); 6998 if (lun->be_lun->flags & CTL_LUN_FLAG_UNMAP) 6999 data->lalba_lbp[0] |= SRC16_LBPME | SRC16_LBPRZ; 7000 7001 ctl_set_success(ctsio); 7002 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7003 ctsio->be_move_done = ctl_config_move_done; 7004 ctl_datamove((union ctl_io *)ctsio); 7005 return (CTL_RETVAL_COMPLETE); 7006} 7007 7008int 7009ctl_get_lba_status(struct ctl_scsiio *ctsio) 7010{ 7011 struct ctl_lun *lun = CTL_LUN(ctsio); 7012 struct scsi_get_lba_status *cdb; 7013 struct scsi_get_lba_status_data *data; 7014 struct ctl_lba_len_flags *lbalen; 7015 uint64_t lba; 7016 uint32_t alloc_len, total_len; 7017 int retval; 7018 7019 CTL_DEBUG_PRINT(("ctl_get_lba_status\n")); 7020 7021 cdb = (struct scsi_get_lba_status *)ctsio->cdb; 7022 lba = scsi_8btou64(cdb->addr); 7023 alloc_len = scsi_4btoul(cdb->alloc_len); 7024 7025 if (lba > lun->be_lun->maxlba) { 7026 ctl_set_lba_out_of_range(ctsio, lba); 7027 ctl_done((union ctl_io *)ctsio); 7028 return (CTL_RETVAL_COMPLETE); 7029 } 7030 7031 total_len = sizeof(*data) + sizeof(data->descr[0]); 7032 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7033 data = (struct scsi_get_lba_status_data *)ctsio->kern_data_ptr; 7034 7035 if (total_len < alloc_len) { 7036 ctsio->residual = alloc_len - total_len; 7037 ctsio->kern_data_len = total_len; 7038 ctsio->kern_total_len = total_len; 7039 } else { 7040 ctsio->residual = 0; 7041 ctsio->kern_data_len = alloc_len; 7042 ctsio->kern_total_len = alloc_len; 7043 } 7044 ctsio->kern_data_resid = 0; 7045 ctsio->kern_rel_offset = 0; 7046 ctsio->kern_sg_entries = 0; 7047 7048 /* Fill dummy data in case backend can't tell anything. */ 7049 scsi_ulto4b(4 + sizeof(data->descr[0]), data->length); 7050 scsi_u64to8b(lba, data->descr[0].addr); 7051 scsi_ulto4b(MIN(UINT32_MAX, lun->be_lun->maxlba + 1 - lba), 7052 data->descr[0].length); 7053 data->descr[0].status = 0; /* Mapped or unknown. */ 7054 7055 ctl_set_success(ctsio); 7056 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7057 ctsio->be_move_done = ctl_config_move_done; 7058 7059 lbalen = (struct ctl_lba_len_flags *)&ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 7060 lbalen->lba = lba; 7061 lbalen->len = total_len; 7062 lbalen->flags = 0; 7063 retval = lun->backend->config_read((union ctl_io *)ctsio); 7064 return (CTL_RETVAL_COMPLETE); 7065} 7066 7067int 7068ctl_read_defect(struct ctl_scsiio *ctsio) 7069{ 7070 struct scsi_read_defect_data_10 *ccb10; 7071 struct scsi_read_defect_data_12 *ccb12; 7072 struct scsi_read_defect_data_hdr_10 *data10; 7073 struct scsi_read_defect_data_hdr_12 *data12; 7074 uint32_t alloc_len, data_len; 7075 uint8_t format; 7076 7077 CTL_DEBUG_PRINT(("ctl_read_defect\n")); 7078 7079 if (ctsio->cdb[0] == READ_DEFECT_DATA_10) { 7080 ccb10 = (struct scsi_read_defect_data_10 *)&ctsio->cdb; 7081 format = ccb10->format; 7082 alloc_len = scsi_2btoul(ccb10->alloc_length); 7083 data_len = sizeof(*data10); 7084 } else { 7085 ccb12 = (struct scsi_read_defect_data_12 *)&ctsio->cdb; 7086 format = ccb12->format; 7087 alloc_len = scsi_4btoul(ccb12->alloc_length); 7088 data_len = sizeof(*data12); 7089 } 7090 if (alloc_len == 0) { 7091 ctl_set_success(ctsio); 7092 ctl_done((union ctl_io *)ctsio); 7093 return (CTL_RETVAL_COMPLETE); 7094 } 7095 7096 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 7097 if (data_len < alloc_len) { 7098 ctsio->residual = alloc_len - data_len; 7099 ctsio->kern_data_len = data_len; 7100 ctsio->kern_total_len = data_len; 7101 } else { 7102 ctsio->residual = 0; 7103 ctsio->kern_data_len = alloc_len; 7104 ctsio->kern_total_len = alloc_len; 7105 } 7106 ctsio->kern_data_resid = 0; 7107 ctsio->kern_rel_offset = 0; 7108 ctsio->kern_sg_entries = 0; 7109 7110 if (ctsio->cdb[0] == READ_DEFECT_DATA_10) { 7111 data10 = (struct scsi_read_defect_data_hdr_10 *) 7112 ctsio->kern_data_ptr; 7113 data10->format = format; 7114 scsi_ulto2b(0, data10->length); 7115 } else { 7116 data12 = (struct scsi_read_defect_data_hdr_12 *) 7117 ctsio->kern_data_ptr; 7118 data12->format = format; 7119 scsi_ulto2b(0, data12->generation); 7120 scsi_ulto4b(0, data12->length); 7121 } 7122 7123 ctl_set_success(ctsio); 7124 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7125 ctsio->be_move_done = ctl_config_move_done; 7126 ctl_datamove((union ctl_io *)ctsio); 7127 return (CTL_RETVAL_COMPLETE); 7128} 7129 7130int 7131ctl_report_tagret_port_groups(struct ctl_scsiio *ctsio) 7132{ 7133 struct ctl_softc *softc = CTL_SOFTC(ctsio); 7134 struct ctl_lun *lun = CTL_LUN(ctsio); 7135 struct scsi_maintenance_in *cdb; 7136 int retval; 7137 int alloc_len, ext, total_len = 0, g, pc, pg, ts, os; 7138 int num_ha_groups, num_target_ports, shared_group; 7139 struct ctl_port *port; 7140 struct scsi_target_group_data *rtg_ptr; 7141 struct scsi_target_group_data_extended *rtg_ext_ptr; 7142 struct scsi_target_port_group_descriptor *tpg_desc; 7143 7144 CTL_DEBUG_PRINT(("ctl_report_tagret_port_groups\n")); 7145 7146 cdb = (struct scsi_maintenance_in *)ctsio->cdb; 7147 retval = CTL_RETVAL_COMPLETE; 7148 7149 switch (cdb->byte2 & STG_PDF_MASK) { 7150 case STG_PDF_LENGTH: 7151 ext = 0; 7152 break; 7153 case STG_PDF_EXTENDED: 7154 ext = 1; 7155 break; 7156 default: 7157 ctl_set_invalid_field(/*ctsio*/ ctsio, 7158 /*sks_valid*/ 1, 7159 /*command*/ 1, 7160 /*field*/ 2, 7161 /*bit_valid*/ 1, 7162 /*bit*/ 5); 7163 ctl_done((union ctl_io *)ctsio); 7164 return(retval); 7165 } 7166 7167 num_target_ports = 0; 7168 shared_group = (softc->is_single != 0); 7169 mtx_lock(&softc->ctl_lock); 7170 STAILQ_FOREACH(port, &softc->port_list, links) { 7171 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 7172 continue; 7173 if (ctl_lun_map_to_port(port, lun->lun) == UINT32_MAX) 7174 continue; 7175 num_target_ports++; 7176 if (port->status & CTL_PORT_STATUS_HA_SHARED) 7177 shared_group = 1; 7178 } 7179 mtx_unlock(&softc->ctl_lock); 7180 num_ha_groups = (softc->is_single) ? 0 : NUM_HA_SHELVES; 7181 7182 if (ext) 7183 total_len = sizeof(struct scsi_target_group_data_extended); 7184 else 7185 total_len = sizeof(struct scsi_target_group_data); 7186 total_len += sizeof(struct scsi_target_port_group_descriptor) * 7187 (shared_group + num_ha_groups) + 7188 sizeof(struct scsi_target_port_descriptor) * num_target_ports; 7189 7190 alloc_len = scsi_4btoul(cdb->length); 7191 7192 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7193 7194 ctsio->kern_sg_entries = 0; 7195 7196 if (total_len < alloc_len) { 7197 ctsio->residual = alloc_len - total_len; 7198 ctsio->kern_data_len = total_len; 7199 ctsio->kern_total_len = total_len; 7200 } else { 7201 ctsio->residual = 0; 7202 ctsio->kern_data_len = alloc_len; 7203 ctsio->kern_total_len = alloc_len; 7204 } 7205 ctsio->kern_data_resid = 0; 7206 ctsio->kern_rel_offset = 0; 7207 7208 if (ext) { 7209 rtg_ext_ptr = (struct scsi_target_group_data_extended *) 7210 ctsio->kern_data_ptr; 7211 scsi_ulto4b(total_len - 4, rtg_ext_ptr->length); 7212 rtg_ext_ptr->format_type = 0x10; 7213 rtg_ext_ptr->implicit_transition_time = 0; 7214 tpg_desc = &rtg_ext_ptr->groups[0]; 7215 } else { 7216 rtg_ptr = (struct scsi_target_group_data *) 7217 ctsio->kern_data_ptr; 7218 scsi_ulto4b(total_len - 4, rtg_ptr->length); 7219 tpg_desc = &rtg_ptr->groups[0]; 7220 } 7221 7222 mtx_lock(&softc->ctl_lock); 7223 pg = softc->port_min / softc->port_cnt; 7224 if (lun->flags & (CTL_LUN_PRIMARY_SC | CTL_LUN_PEER_SC_PRIMARY)) { 7225 /* Some shelf is known to be primary. */ 7226 if (softc->ha_link == CTL_HA_LINK_OFFLINE) 7227 os = TPG_ASYMMETRIC_ACCESS_UNAVAILABLE; 7228 else if (softc->ha_link == CTL_HA_LINK_UNKNOWN) 7229 os = TPG_ASYMMETRIC_ACCESS_TRANSITIONING; 7230 else if (softc->ha_mode == CTL_HA_MODE_ACT_STBY) 7231 os = TPG_ASYMMETRIC_ACCESS_STANDBY; 7232 else 7233 os = TPG_ASYMMETRIC_ACCESS_NONOPTIMIZED; 7234 if (lun->flags & CTL_LUN_PRIMARY_SC) { 7235 ts = TPG_ASYMMETRIC_ACCESS_OPTIMIZED; 7236 } else { 7237 ts = os; 7238 os = TPG_ASYMMETRIC_ACCESS_OPTIMIZED; 7239 } 7240 } else { 7241 /* No known primary shelf. */ 7242 if (softc->ha_link == CTL_HA_LINK_OFFLINE) { 7243 ts = TPG_ASYMMETRIC_ACCESS_UNAVAILABLE; 7244 os = TPG_ASYMMETRIC_ACCESS_OPTIMIZED; 7245 } else if (softc->ha_link == CTL_HA_LINK_UNKNOWN) { 7246 ts = TPG_ASYMMETRIC_ACCESS_TRANSITIONING; 7247 os = TPG_ASYMMETRIC_ACCESS_OPTIMIZED; 7248 } else { 7249 ts = os = TPG_ASYMMETRIC_ACCESS_TRANSITIONING; 7250 } 7251 } 7252 if (shared_group) { 7253 tpg_desc->pref_state = ts; 7254 tpg_desc->support = TPG_AO_SUP | TPG_AN_SUP | TPG_S_SUP | 7255 TPG_U_SUP | TPG_T_SUP; 7256 scsi_ulto2b(1, tpg_desc->target_port_group); 7257 tpg_desc->status = TPG_IMPLICIT; 7258 pc = 0; 7259 STAILQ_FOREACH(port, &softc->port_list, links) { 7260 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 7261 continue; 7262 if (!softc->is_single && 7263 (port->status & CTL_PORT_STATUS_HA_SHARED) == 0) 7264 continue; 7265 if (ctl_lun_map_to_port(port, lun->lun) == UINT32_MAX) 7266 continue; 7267 scsi_ulto2b(port->targ_port, tpg_desc->descriptors[pc]. 7268 relative_target_port_identifier); 7269 pc++; 7270 } 7271 tpg_desc->target_port_count = pc; 7272 tpg_desc = (struct scsi_target_port_group_descriptor *) 7273 &tpg_desc->descriptors[pc]; 7274 } 7275 for (g = 0; g < num_ha_groups; g++) { 7276 tpg_desc->pref_state = (g == pg) ? ts : os; 7277 tpg_desc->support = TPG_AO_SUP | TPG_AN_SUP | TPG_S_SUP | 7278 TPG_U_SUP | TPG_T_SUP; 7279 scsi_ulto2b(2 + g, tpg_desc->target_port_group); 7280 tpg_desc->status = TPG_IMPLICIT; 7281 pc = 0; 7282 STAILQ_FOREACH(port, &softc->port_list, links) { 7283 if (port->targ_port < g * softc->port_cnt || 7284 port->targ_port >= (g + 1) * softc->port_cnt) 7285 continue; 7286 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 7287 continue; 7288 if (port->status & CTL_PORT_STATUS_HA_SHARED) 7289 continue; 7290 if (ctl_lun_map_to_port(port, lun->lun) == UINT32_MAX) 7291 continue; 7292 scsi_ulto2b(port->targ_port, tpg_desc->descriptors[pc]. 7293 relative_target_port_identifier); 7294 pc++; 7295 } 7296 tpg_desc->target_port_count = pc; 7297 tpg_desc = (struct scsi_target_port_group_descriptor *) 7298 &tpg_desc->descriptors[pc]; 7299 } 7300 mtx_unlock(&softc->ctl_lock); 7301 7302 ctl_set_success(ctsio); 7303 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7304 ctsio->be_move_done = ctl_config_move_done; 7305 ctl_datamove((union ctl_io *)ctsio); 7306 return(retval); 7307} 7308 7309int 7310ctl_report_supported_opcodes(struct ctl_scsiio *ctsio) 7311{ 7312 struct ctl_lun *lun = CTL_LUN(ctsio); 7313 struct scsi_report_supported_opcodes *cdb; 7314 const struct ctl_cmd_entry *entry, *sentry; 7315 struct scsi_report_supported_opcodes_all *all; 7316 struct scsi_report_supported_opcodes_descr *descr; 7317 struct scsi_report_supported_opcodes_one *one; 7318 int retval; 7319 int alloc_len, total_len; 7320 int opcode, service_action, i, j, num; 7321 7322 CTL_DEBUG_PRINT(("ctl_report_supported_opcodes\n")); 7323 7324 cdb = (struct scsi_report_supported_opcodes *)ctsio->cdb; 7325 retval = CTL_RETVAL_COMPLETE; 7326 7327 opcode = cdb->requested_opcode; 7328 service_action = scsi_2btoul(cdb->requested_service_action); 7329 switch (cdb->options & RSO_OPTIONS_MASK) { 7330 case RSO_OPTIONS_ALL: 7331 num = 0; 7332 for (i = 0; i < 256; i++) { 7333 entry = &ctl_cmd_table[i]; 7334 if (entry->flags & CTL_CMD_FLAG_SA5) { 7335 for (j = 0; j < 32; j++) { 7336 sentry = &((const struct ctl_cmd_entry *) 7337 entry->execute)[j]; 7338 if (ctl_cmd_applicable( 7339 lun->be_lun->lun_type, sentry)) 7340 num++; 7341 } 7342 } else { 7343 if (ctl_cmd_applicable(lun->be_lun->lun_type, 7344 entry)) 7345 num++; 7346 } 7347 } 7348 total_len = sizeof(struct scsi_report_supported_opcodes_all) + 7349 num * sizeof(struct scsi_report_supported_opcodes_descr); 7350 break; 7351 case RSO_OPTIONS_OC: 7352 if (ctl_cmd_table[opcode].flags & CTL_CMD_FLAG_SA5) { 7353 ctl_set_invalid_field(/*ctsio*/ ctsio, 7354 /*sks_valid*/ 1, 7355 /*command*/ 1, 7356 /*field*/ 2, 7357 /*bit_valid*/ 1, 7358 /*bit*/ 2); 7359 ctl_done((union ctl_io *)ctsio); 7360 return (CTL_RETVAL_COMPLETE); 7361 } 7362 total_len = sizeof(struct scsi_report_supported_opcodes_one) + 32; 7363 break; 7364 case RSO_OPTIONS_OC_SA: 7365 if ((ctl_cmd_table[opcode].flags & CTL_CMD_FLAG_SA5) == 0 || 7366 service_action >= 32) { 7367 ctl_set_invalid_field(/*ctsio*/ ctsio, 7368 /*sks_valid*/ 1, 7369 /*command*/ 1, 7370 /*field*/ 2, 7371 /*bit_valid*/ 1, 7372 /*bit*/ 2); 7373 ctl_done((union ctl_io *)ctsio); 7374 return (CTL_RETVAL_COMPLETE); 7375 } 7376 /* FALLTHROUGH */ 7377 case RSO_OPTIONS_OC_ASA: 7378 total_len = sizeof(struct scsi_report_supported_opcodes_one) + 32; 7379 break; 7380 default: 7381 ctl_set_invalid_field(/*ctsio*/ ctsio, 7382 /*sks_valid*/ 1, 7383 /*command*/ 1, 7384 /*field*/ 2, 7385 /*bit_valid*/ 1, 7386 /*bit*/ 2); 7387 ctl_done((union ctl_io *)ctsio); 7388 return (CTL_RETVAL_COMPLETE); 7389 } 7390 7391 alloc_len = scsi_4btoul(cdb->length); 7392 7393 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7394 7395 ctsio->kern_sg_entries = 0; 7396 7397 if (total_len < alloc_len) { 7398 ctsio->residual = alloc_len - total_len; 7399 ctsio->kern_data_len = total_len; 7400 ctsio->kern_total_len = total_len; 7401 } else { 7402 ctsio->residual = 0; 7403 ctsio->kern_data_len = alloc_len; 7404 ctsio->kern_total_len = alloc_len; 7405 } 7406 ctsio->kern_data_resid = 0; 7407 ctsio->kern_rel_offset = 0; 7408 7409 switch (cdb->options & RSO_OPTIONS_MASK) { 7410 case RSO_OPTIONS_ALL: 7411 all = (struct scsi_report_supported_opcodes_all *) 7412 ctsio->kern_data_ptr; 7413 num = 0; 7414 for (i = 0; i < 256; i++) { 7415 entry = &ctl_cmd_table[i]; 7416 if (entry->flags & CTL_CMD_FLAG_SA5) { 7417 for (j = 0; j < 32; j++) { 7418 sentry = &((const struct ctl_cmd_entry *) 7419 entry->execute)[j]; 7420 if (!ctl_cmd_applicable( 7421 lun->be_lun->lun_type, sentry)) 7422 continue; 7423 descr = &all->descr[num++]; 7424 descr->opcode = i; 7425 scsi_ulto2b(j, descr->service_action); 7426 descr->flags = RSO_SERVACTV; 7427 scsi_ulto2b(sentry->length, 7428 descr->cdb_length); 7429 } 7430 } else { 7431 if (!ctl_cmd_applicable(lun->be_lun->lun_type, 7432 entry)) 7433 continue; 7434 descr = &all->descr[num++]; 7435 descr->opcode = i; 7436 scsi_ulto2b(0, descr->service_action); 7437 descr->flags = 0; 7438 scsi_ulto2b(entry->length, descr->cdb_length); 7439 } 7440 } 7441 scsi_ulto4b( 7442 num * sizeof(struct scsi_report_supported_opcodes_descr), 7443 all->length); 7444 break; 7445 case RSO_OPTIONS_OC: 7446 one = (struct scsi_report_supported_opcodes_one *) 7447 ctsio->kern_data_ptr; 7448 entry = &ctl_cmd_table[opcode]; 7449 goto fill_one; 7450 case RSO_OPTIONS_OC_SA: 7451 one = (struct scsi_report_supported_opcodes_one *) 7452 ctsio->kern_data_ptr; 7453 entry = &ctl_cmd_table[opcode]; 7454 entry = &((const struct ctl_cmd_entry *) 7455 entry->execute)[service_action]; 7456fill_one: 7457 if (ctl_cmd_applicable(lun->be_lun->lun_type, entry)) { 7458 one->support = 3; 7459 scsi_ulto2b(entry->length, one->cdb_length); 7460 one->cdb_usage[0] = opcode; 7461 memcpy(&one->cdb_usage[1], entry->usage, 7462 entry->length - 1); 7463 } else 7464 one->support = 1; 7465 break; 7466 case RSO_OPTIONS_OC_ASA: 7467 one = (struct scsi_report_supported_opcodes_one *) 7468 ctsio->kern_data_ptr; 7469 entry = &ctl_cmd_table[opcode]; 7470 if (entry->flags & CTL_CMD_FLAG_SA5) { 7471 entry = &((const struct ctl_cmd_entry *) 7472 entry->execute)[service_action]; 7473 } else if (service_action != 0) { 7474 one->support = 1; 7475 break; 7476 } 7477 goto fill_one; 7478 } 7479 7480 ctl_set_success(ctsio); 7481 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7482 ctsio->be_move_done = ctl_config_move_done; 7483 ctl_datamove((union ctl_io *)ctsio); 7484 return(retval); 7485} 7486 7487int 7488ctl_report_supported_tmf(struct ctl_scsiio *ctsio) 7489{ 7490 struct scsi_report_supported_tmf *cdb; 7491 struct scsi_report_supported_tmf_ext_data *data; 7492 int retval; 7493 int alloc_len, total_len; 7494 7495 CTL_DEBUG_PRINT(("ctl_report_supported_tmf\n")); 7496 7497 cdb = (struct scsi_report_supported_tmf *)ctsio->cdb; 7498 7499 retval = CTL_RETVAL_COMPLETE; 7500 7501 if (cdb->options & RST_REPD) 7502 total_len = sizeof(struct scsi_report_supported_tmf_ext_data); 7503 else 7504 total_len = sizeof(struct scsi_report_supported_tmf_data); 7505 alloc_len = scsi_4btoul(cdb->length); 7506 7507 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7508 7509 ctsio->kern_sg_entries = 0; 7510 7511 if (total_len < alloc_len) { 7512 ctsio->residual = alloc_len - total_len; 7513 ctsio->kern_data_len = total_len; 7514 ctsio->kern_total_len = total_len; 7515 } else { 7516 ctsio->residual = 0; 7517 ctsio->kern_data_len = alloc_len; 7518 ctsio->kern_total_len = alloc_len; 7519 } 7520 ctsio->kern_data_resid = 0; 7521 ctsio->kern_rel_offset = 0; 7522 7523 data = (struct scsi_report_supported_tmf_ext_data *)ctsio->kern_data_ptr; 7524 data->byte1 |= RST_ATS | RST_ATSS | RST_CTSS | RST_LURS | RST_QTS | 7525 RST_TRS; 7526 data->byte2 |= RST_QAES | RST_QTSS | RST_ITNRS; 7527 data->length = total_len - 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_report_timestamp(struct ctl_scsiio *ctsio) 7538{ 7539 struct scsi_report_timestamp *cdb; 7540 struct scsi_report_timestamp_data *data; 7541 struct timeval tv; 7542 int64_t timestamp; 7543 int retval; 7544 int alloc_len, total_len; 7545 7546 CTL_DEBUG_PRINT(("ctl_report_timestamp\n")); 7547 7548 cdb = (struct scsi_report_timestamp *)ctsio->cdb; 7549 7550 retval = CTL_RETVAL_COMPLETE; 7551 7552 total_len = sizeof(struct scsi_report_timestamp_data); 7553 alloc_len = scsi_4btoul(cdb->length); 7554 7555 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7556 7557 ctsio->kern_sg_entries = 0; 7558 7559 if (total_len < alloc_len) { 7560 ctsio->residual = alloc_len - total_len; 7561 ctsio->kern_data_len = total_len; 7562 ctsio->kern_total_len = total_len; 7563 } else { 7564 ctsio->residual = 0; 7565 ctsio->kern_data_len = alloc_len; 7566 ctsio->kern_total_len = alloc_len; 7567 } 7568 ctsio->kern_data_resid = 0; 7569 ctsio->kern_rel_offset = 0; 7570 7571 data = (struct scsi_report_timestamp_data *)ctsio->kern_data_ptr; 7572 scsi_ulto2b(sizeof(*data) - 2, data->length); 7573 data->origin = RTS_ORIG_OUTSIDE; 7574 getmicrotime(&tv); 7575 timestamp = (int64_t)tv.tv_sec * 1000 + tv.tv_usec / 1000; 7576 scsi_ulto4b(timestamp >> 16, data->timestamp); 7577 scsi_ulto2b(timestamp & 0xffff, &data->timestamp[4]); 7578 7579 ctl_set_success(ctsio); 7580 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7581 ctsio->be_move_done = ctl_config_move_done; 7582 ctl_datamove((union ctl_io *)ctsio); 7583 return (retval); 7584} 7585 7586int 7587ctl_persistent_reserve_in(struct ctl_scsiio *ctsio) 7588{ 7589 struct ctl_softc *softc = CTL_SOFTC(ctsio); 7590 struct ctl_lun *lun = CTL_LUN(ctsio); 7591 struct scsi_per_res_in *cdb; 7592 int alloc_len, total_len = 0; 7593 /* struct scsi_per_res_in_rsrv in_data; */ 7594 uint64_t key; 7595 7596 CTL_DEBUG_PRINT(("ctl_persistent_reserve_in\n")); 7597 7598 cdb = (struct scsi_per_res_in *)ctsio->cdb; 7599 7600 alloc_len = scsi_2btoul(cdb->length); 7601 7602retry: 7603 mtx_lock(&lun->lun_lock); 7604 switch (cdb->action) { 7605 case SPRI_RK: /* read keys */ 7606 total_len = sizeof(struct scsi_per_res_in_keys) + 7607 lun->pr_key_count * 7608 sizeof(struct scsi_per_res_key); 7609 break; 7610 case SPRI_RR: /* read reservation */ 7611 if (lun->flags & CTL_LUN_PR_RESERVED) 7612 total_len = sizeof(struct scsi_per_res_in_rsrv); 7613 else 7614 total_len = sizeof(struct scsi_per_res_in_header); 7615 break; 7616 case SPRI_RC: /* report capabilities */ 7617 total_len = sizeof(struct scsi_per_res_cap); 7618 break; 7619 case SPRI_RS: /* read full status */ 7620 total_len = sizeof(struct scsi_per_res_in_header) + 7621 (sizeof(struct scsi_per_res_in_full_desc) + 256) * 7622 lun->pr_key_count; 7623 break; 7624 default: 7625 panic("%s: Invalid PR type %#x", __func__, cdb->action); 7626 } 7627 mtx_unlock(&lun->lun_lock); 7628 7629 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7630 7631 if (total_len < alloc_len) { 7632 ctsio->residual = alloc_len - total_len; 7633 ctsio->kern_data_len = total_len; 7634 ctsio->kern_total_len = total_len; 7635 } else { 7636 ctsio->residual = 0; 7637 ctsio->kern_data_len = alloc_len; 7638 ctsio->kern_total_len = alloc_len; 7639 } 7640 7641 ctsio->kern_data_resid = 0; 7642 ctsio->kern_rel_offset = 0; 7643 ctsio->kern_sg_entries = 0; 7644 7645 mtx_lock(&lun->lun_lock); 7646 switch (cdb->action) { 7647 case SPRI_RK: { // read keys 7648 struct scsi_per_res_in_keys *res_keys; 7649 int i, key_count; 7650 7651 res_keys = (struct scsi_per_res_in_keys*)ctsio->kern_data_ptr; 7652 7653 /* 7654 * We had to drop the lock to allocate our buffer, which 7655 * leaves time for someone to come in with another 7656 * persistent reservation. (That is unlikely, though, 7657 * since this should be the only persistent reservation 7658 * command active right now.) 7659 */ 7660 if (total_len != (sizeof(struct scsi_per_res_in_keys) + 7661 (lun->pr_key_count * 7662 sizeof(struct scsi_per_res_key)))){ 7663 mtx_unlock(&lun->lun_lock); 7664 free(ctsio->kern_data_ptr, M_CTL); 7665 printf("%s: reservation length changed, retrying\n", 7666 __func__); 7667 goto retry; 7668 } 7669 7670 scsi_ulto4b(lun->pr_generation, res_keys->header.generation); 7671 7672 scsi_ulto4b(sizeof(struct scsi_per_res_key) * 7673 lun->pr_key_count, res_keys->header.length); 7674 7675 for (i = 0, key_count = 0; i < CTL_MAX_INITIATORS; i++) { 7676 if ((key = ctl_get_prkey(lun, i)) == 0) 7677 continue; 7678 7679 /* 7680 * We used lun->pr_key_count to calculate the 7681 * size to allocate. If it turns out the number of 7682 * initiators with the registered flag set is 7683 * larger than that (i.e. they haven't been kept in 7684 * sync), we've got a problem. 7685 */ 7686 if (key_count >= lun->pr_key_count) { 7687 key_count++; 7688 continue; 7689 } 7690 scsi_u64to8b(key, res_keys->keys[key_count].key); 7691 key_count++; 7692 } 7693 break; 7694 } 7695 case SPRI_RR: { // read reservation 7696 struct scsi_per_res_in_rsrv *res; 7697 int tmp_len, header_only; 7698 7699 res = (struct scsi_per_res_in_rsrv *)ctsio->kern_data_ptr; 7700 7701 scsi_ulto4b(lun->pr_generation, res->header.generation); 7702 7703 if (lun->flags & CTL_LUN_PR_RESERVED) 7704 { 7705 tmp_len = sizeof(struct scsi_per_res_in_rsrv); 7706 scsi_ulto4b(sizeof(struct scsi_per_res_in_rsrv_data), 7707 res->header.length); 7708 header_only = 0; 7709 } else { 7710 tmp_len = sizeof(struct scsi_per_res_in_header); 7711 scsi_ulto4b(0, res->header.length); 7712 header_only = 1; 7713 } 7714 7715 /* 7716 * We had to drop the lock to allocate our buffer, which 7717 * leaves time for someone to come in with another 7718 * persistent reservation. (That is unlikely, though, 7719 * since this should be the only persistent reservation 7720 * command active right now.) 7721 */ 7722 if (tmp_len != total_len) { 7723 mtx_unlock(&lun->lun_lock); 7724 free(ctsio->kern_data_ptr, M_CTL); 7725 printf("%s: reservation status changed, retrying\n", 7726 __func__); 7727 goto retry; 7728 } 7729 7730 /* 7731 * No reservation held, so we're done. 7732 */ 7733 if (header_only != 0) 7734 break; 7735 7736 /* 7737 * If the registration is an All Registrants type, the key 7738 * is 0, since it doesn't really matter. 7739 */ 7740 if (lun->pr_res_idx != CTL_PR_ALL_REGISTRANTS) { 7741 scsi_u64to8b(ctl_get_prkey(lun, lun->pr_res_idx), 7742 res->data.reservation); 7743 } 7744 res->data.scopetype = lun->pr_res_type; 7745 break; 7746 } 7747 case SPRI_RC: //report capabilities 7748 { 7749 struct scsi_per_res_cap *res_cap; 7750 uint16_t type_mask; 7751 7752 res_cap = (struct scsi_per_res_cap *)ctsio->kern_data_ptr; 7753 scsi_ulto2b(sizeof(*res_cap), res_cap->length); 7754 res_cap->flags1 = SPRI_CRH; 7755 res_cap->flags2 = SPRI_TMV | SPRI_ALLOW_5; 7756 type_mask = SPRI_TM_WR_EX_AR | 7757 SPRI_TM_EX_AC_RO | 7758 SPRI_TM_WR_EX_RO | 7759 SPRI_TM_EX_AC | 7760 SPRI_TM_WR_EX | 7761 SPRI_TM_EX_AC_AR; 7762 scsi_ulto2b(type_mask, res_cap->type_mask); 7763 break; 7764 } 7765 case SPRI_RS: { // read full status 7766 struct scsi_per_res_in_full *res_status; 7767 struct scsi_per_res_in_full_desc *res_desc; 7768 struct ctl_port *port; 7769 int i, len; 7770 7771 res_status = (struct scsi_per_res_in_full*)ctsio->kern_data_ptr; 7772 7773 /* 7774 * We had to drop the lock to allocate our buffer, which 7775 * leaves time for someone to come in with another 7776 * persistent reservation. (That is unlikely, though, 7777 * since this should be the only persistent reservation 7778 * command active right now.) 7779 */ 7780 if (total_len < (sizeof(struct scsi_per_res_in_header) + 7781 (sizeof(struct scsi_per_res_in_full_desc) + 256) * 7782 lun->pr_key_count)){ 7783 mtx_unlock(&lun->lun_lock); 7784 free(ctsio->kern_data_ptr, M_CTL); 7785 printf("%s: reservation length changed, retrying\n", 7786 __func__); 7787 goto retry; 7788 } 7789 7790 scsi_ulto4b(lun->pr_generation, res_status->header.generation); 7791 7792 res_desc = &res_status->desc[0]; 7793 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 7794 if ((key = ctl_get_prkey(lun, i)) == 0) 7795 continue; 7796 7797 scsi_u64to8b(key, res_desc->res_key.key); 7798 if ((lun->flags & CTL_LUN_PR_RESERVED) && 7799 (lun->pr_res_idx == i || 7800 lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS)) { 7801 res_desc->flags = SPRI_FULL_R_HOLDER; 7802 res_desc->scopetype = lun->pr_res_type; 7803 } 7804 scsi_ulto2b(i / CTL_MAX_INIT_PER_PORT, 7805 res_desc->rel_trgt_port_id); 7806 len = 0; 7807 port = softc->ctl_ports[i / CTL_MAX_INIT_PER_PORT]; 7808 if (port != NULL) 7809 len = ctl_create_iid(port, 7810 i % CTL_MAX_INIT_PER_PORT, 7811 res_desc->transport_id); 7812 scsi_ulto4b(len, res_desc->additional_length); 7813 res_desc = (struct scsi_per_res_in_full_desc *) 7814 &res_desc->transport_id[len]; 7815 } 7816 scsi_ulto4b((uint8_t *)res_desc - (uint8_t *)&res_status->desc[0], 7817 res_status->header.length); 7818 break; 7819 } 7820 default: 7821 panic("%s: Invalid PR type %#x", __func__, cdb->action); 7822 } 7823 mtx_unlock(&lun->lun_lock); 7824 7825 ctl_set_success(ctsio); 7826 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7827 ctsio->be_move_done = ctl_config_move_done; 7828 ctl_datamove((union ctl_io *)ctsio); 7829 return (CTL_RETVAL_COMPLETE); 7830} 7831 7832/* 7833 * Returns 0 if ctl_persistent_reserve_out() should continue, non-zero if 7834 * it should return. 7835 */ 7836static int 7837ctl_pro_preempt(struct ctl_softc *softc, struct ctl_lun *lun, uint64_t res_key, 7838 uint64_t sa_res_key, uint8_t type, uint32_t residx, 7839 struct ctl_scsiio *ctsio, struct scsi_per_res_out *cdb, 7840 struct scsi_per_res_out_parms* param) 7841{ 7842 union ctl_ha_msg persis_io; 7843 int i; 7844 7845 mtx_lock(&lun->lun_lock); 7846 if (sa_res_key == 0) { 7847 if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS) { 7848 /* validate scope and type */ 7849 if ((cdb->scope_type & SPR_SCOPE_MASK) != 7850 SPR_LU_SCOPE) { 7851 mtx_unlock(&lun->lun_lock); 7852 ctl_set_invalid_field(/*ctsio*/ ctsio, 7853 /*sks_valid*/ 1, 7854 /*command*/ 1, 7855 /*field*/ 2, 7856 /*bit_valid*/ 1, 7857 /*bit*/ 4); 7858 ctl_done((union ctl_io *)ctsio); 7859 return (1); 7860 } 7861 7862 if (type>8 || type==2 || type==4 || type==0) { 7863 mtx_unlock(&lun->lun_lock); 7864 ctl_set_invalid_field(/*ctsio*/ ctsio, 7865 /*sks_valid*/ 1, 7866 /*command*/ 1, 7867 /*field*/ 2, 7868 /*bit_valid*/ 1, 7869 /*bit*/ 0); 7870 ctl_done((union ctl_io *)ctsio); 7871 return (1); 7872 } 7873 7874 /* 7875 * Unregister everybody else and build UA for 7876 * them 7877 */ 7878 for(i = 0; i < CTL_MAX_INITIATORS; i++) { 7879 if (i == residx || ctl_get_prkey(lun, i) == 0) 7880 continue; 7881 7882 ctl_clr_prkey(lun, i); 7883 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 7884 } 7885 lun->pr_key_count = 1; 7886 lun->pr_res_type = type; 7887 if (lun->pr_res_type != SPR_TYPE_WR_EX_AR && 7888 lun->pr_res_type != SPR_TYPE_EX_AC_AR) 7889 lun->pr_res_idx = residx; 7890 lun->pr_generation++; 7891 mtx_unlock(&lun->lun_lock); 7892 7893 /* send msg to other side */ 7894 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 7895 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 7896 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 7897 persis_io.pr.pr_info.residx = lun->pr_res_idx; 7898 persis_io.pr.pr_info.res_type = type; 7899 memcpy(persis_io.pr.pr_info.sa_res_key, 7900 param->serv_act_res_key, 7901 sizeof(param->serv_act_res_key)); 7902 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 7903 sizeof(persis_io.pr), M_WAITOK); 7904 } else { 7905 /* not all registrants */ 7906 mtx_unlock(&lun->lun_lock); 7907 free(ctsio->kern_data_ptr, M_CTL); 7908 ctl_set_invalid_field(ctsio, 7909 /*sks_valid*/ 1, 7910 /*command*/ 0, 7911 /*field*/ 8, 7912 /*bit_valid*/ 0, 7913 /*bit*/ 0); 7914 ctl_done((union ctl_io *)ctsio); 7915 return (1); 7916 } 7917 } else if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS 7918 || !(lun->flags & CTL_LUN_PR_RESERVED)) { 7919 int found = 0; 7920 7921 if (res_key == sa_res_key) { 7922 /* special case */ 7923 /* 7924 * The spec implies this is not good but doesn't 7925 * say what to do. There are two choices either 7926 * generate a res conflict or check condition 7927 * with illegal field in parameter data. Since 7928 * that is what is done when the sa_res_key is 7929 * zero I'll take that approach since this has 7930 * to do with the sa_res_key. 7931 */ 7932 mtx_unlock(&lun->lun_lock); 7933 free(ctsio->kern_data_ptr, M_CTL); 7934 ctl_set_invalid_field(ctsio, 7935 /*sks_valid*/ 1, 7936 /*command*/ 0, 7937 /*field*/ 8, 7938 /*bit_valid*/ 0, 7939 /*bit*/ 0); 7940 ctl_done((union ctl_io *)ctsio); 7941 return (1); 7942 } 7943 7944 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 7945 if (ctl_get_prkey(lun, i) != sa_res_key) 7946 continue; 7947 7948 found = 1; 7949 ctl_clr_prkey(lun, i); 7950 lun->pr_key_count--; 7951 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 7952 } 7953 if (!found) { 7954 mtx_unlock(&lun->lun_lock); 7955 free(ctsio->kern_data_ptr, M_CTL); 7956 ctl_set_reservation_conflict(ctsio); 7957 ctl_done((union ctl_io *)ctsio); 7958 return (CTL_RETVAL_COMPLETE); 7959 } 7960 lun->pr_generation++; 7961 mtx_unlock(&lun->lun_lock); 7962 7963 /* send msg to other side */ 7964 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 7965 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 7966 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 7967 persis_io.pr.pr_info.residx = lun->pr_res_idx; 7968 persis_io.pr.pr_info.res_type = type; 7969 memcpy(persis_io.pr.pr_info.sa_res_key, 7970 param->serv_act_res_key, 7971 sizeof(param->serv_act_res_key)); 7972 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 7973 sizeof(persis_io.pr), M_WAITOK); 7974 } else { 7975 /* Reserved but not all registrants */ 7976 /* sa_res_key is res holder */ 7977 if (sa_res_key == ctl_get_prkey(lun, lun->pr_res_idx)) { 7978 /* validate scope and type */ 7979 if ((cdb->scope_type & SPR_SCOPE_MASK) != 7980 SPR_LU_SCOPE) { 7981 mtx_unlock(&lun->lun_lock); 7982 ctl_set_invalid_field(/*ctsio*/ ctsio, 7983 /*sks_valid*/ 1, 7984 /*command*/ 1, 7985 /*field*/ 2, 7986 /*bit_valid*/ 1, 7987 /*bit*/ 4); 7988 ctl_done((union ctl_io *)ctsio); 7989 return (1); 7990 } 7991 7992 if (type>8 || type==2 || type==4 || type==0) { 7993 mtx_unlock(&lun->lun_lock); 7994 ctl_set_invalid_field(/*ctsio*/ ctsio, 7995 /*sks_valid*/ 1, 7996 /*command*/ 1, 7997 /*field*/ 2, 7998 /*bit_valid*/ 1, 7999 /*bit*/ 0); 8000 ctl_done((union ctl_io *)ctsio); 8001 return (1); 8002 } 8003 8004 /* 8005 * Do the following: 8006 * if sa_res_key != res_key remove all 8007 * registrants w/sa_res_key and generate UA 8008 * for these registrants(Registrations 8009 * Preempted) if it wasn't an exclusive 8010 * reservation generate UA(Reservations 8011 * Preempted) for all other registered nexuses 8012 * if the type has changed. Establish the new 8013 * reservation and holder. If res_key and 8014 * sa_res_key are the same do the above 8015 * except don't unregister the res holder. 8016 */ 8017 8018 for(i = 0; i < CTL_MAX_INITIATORS; i++) { 8019 if (i == residx || ctl_get_prkey(lun, i) == 0) 8020 continue; 8021 8022 if (sa_res_key == ctl_get_prkey(lun, i)) { 8023 ctl_clr_prkey(lun, i); 8024 lun->pr_key_count--; 8025 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 8026 } else if (type != lun->pr_res_type && 8027 (lun->pr_res_type == SPR_TYPE_WR_EX_RO || 8028 lun->pr_res_type == SPR_TYPE_EX_AC_RO)) { 8029 ctl_est_ua(lun, i, CTL_UA_RES_RELEASE); 8030 } 8031 } 8032 lun->pr_res_type = type; 8033 if (lun->pr_res_type != SPR_TYPE_WR_EX_AR && 8034 lun->pr_res_type != SPR_TYPE_EX_AC_AR) 8035 lun->pr_res_idx = residx; 8036 else 8037 lun->pr_res_idx = CTL_PR_ALL_REGISTRANTS; 8038 lun->pr_generation++; 8039 mtx_unlock(&lun->lun_lock); 8040 8041 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8042 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8043 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 8044 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8045 persis_io.pr.pr_info.res_type = type; 8046 memcpy(persis_io.pr.pr_info.sa_res_key, 8047 param->serv_act_res_key, 8048 sizeof(param->serv_act_res_key)); 8049 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8050 sizeof(persis_io.pr), M_WAITOK); 8051 } else { 8052 /* 8053 * sa_res_key is not the res holder just 8054 * remove registrants 8055 */ 8056 int found=0; 8057 8058 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 8059 if (sa_res_key != ctl_get_prkey(lun, i)) 8060 continue; 8061 8062 found = 1; 8063 ctl_clr_prkey(lun, i); 8064 lun->pr_key_count--; 8065 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 8066 } 8067 8068 if (!found) { 8069 mtx_unlock(&lun->lun_lock); 8070 free(ctsio->kern_data_ptr, M_CTL); 8071 ctl_set_reservation_conflict(ctsio); 8072 ctl_done((union ctl_io *)ctsio); 8073 return (1); 8074 } 8075 lun->pr_generation++; 8076 mtx_unlock(&lun->lun_lock); 8077 8078 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8079 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8080 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 8081 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8082 persis_io.pr.pr_info.res_type = type; 8083 memcpy(persis_io.pr.pr_info.sa_res_key, 8084 param->serv_act_res_key, 8085 sizeof(param->serv_act_res_key)); 8086 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8087 sizeof(persis_io.pr), M_WAITOK); 8088 } 8089 } 8090 return (0); 8091} 8092 8093static void 8094ctl_pro_preempt_other(struct ctl_lun *lun, union ctl_ha_msg *msg) 8095{ 8096 uint64_t sa_res_key; 8097 int i; 8098 8099 sa_res_key = scsi_8btou64(msg->pr.pr_info.sa_res_key); 8100 8101 if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS 8102 || lun->pr_res_idx == CTL_PR_NO_RESERVATION 8103 || sa_res_key != ctl_get_prkey(lun, lun->pr_res_idx)) { 8104 if (sa_res_key == 0) { 8105 /* 8106 * Unregister everybody else and build UA for 8107 * them 8108 */ 8109 for(i = 0; i < CTL_MAX_INITIATORS; i++) { 8110 if (i == msg->pr.pr_info.residx || 8111 ctl_get_prkey(lun, i) == 0) 8112 continue; 8113 8114 ctl_clr_prkey(lun, i); 8115 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 8116 } 8117 8118 lun->pr_key_count = 1; 8119 lun->pr_res_type = msg->pr.pr_info.res_type; 8120 if (lun->pr_res_type != SPR_TYPE_WR_EX_AR && 8121 lun->pr_res_type != SPR_TYPE_EX_AC_AR) 8122 lun->pr_res_idx = msg->pr.pr_info.residx; 8123 } else { 8124 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 8125 if (sa_res_key == ctl_get_prkey(lun, i)) 8126 continue; 8127 8128 ctl_clr_prkey(lun, i); 8129 lun->pr_key_count--; 8130 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 8131 } 8132 } 8133 } else { 8134 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 8135 if (i == msg->pr.pr_info.residx || 8136 ctl_get_prkey(lun, i) == 0) 8137 continue; 8138 8139 if (sa_res_key == ctl_get_prkey(lun, i)) { 8140 ctl_clr_prkey(lun, i); 8141 lun->pr_key_count--; 8142 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 8143 } else if (msg->pr.pr_info.res_type != lun->pr_res_type 8144 && (lun->pr_res_type == SPR_TYPE_WR_EX_RO || 8145 lun->pr_res_type == SPR_TYPE_EX_AC_RO)) { 8146 ctl_est_ua(lun, i, CTL_UA_RES_RELEASE); 8147 } 8148 } 8149 lun->pr_res_type = msg->pr.pr_info.res_type; 8150 if (lun->pr_res_type != SPR_TYPE_WR_EX_AR && 8151 lun->pr_res_type != SPR_TYPE_EX_AC_AR) 8152 lun->pr_res_idx = msg->pr.pr_info.residx; 8153 else 8154 lun->pr_res_idx = CTL_PR_ALL_REGISTRANTS; 8155 } 8156 lun->pr_generation++; 8157 8158} 8159 8160 8161int 8162ctl_persistent_reserve_out(struct ctl_scsiio *ctsio) 8163{ 8164 struct ctl_softc *softc = CTL_SOFTC(ctsio); 8165 struct ctl_lun *lun = CTL_LUN(ctsio); 8166 int retval; 8167 u_int32_t param_len; 8168 struct scsi_per_res_out *cdb; 8169 struct scsi_per_res_out_parms* param; 8170 uint32_t residx; 8171 uint64_t res_key, sa_res_key, key; 8172 uint8_t type; 8173 union ctl_ha_msg persis_io; 8174 int i; 8175 8176 CTL_DEBUG_PRINT(("ctl_persistent_reserve_out\n")); 8177 8178 cdb = (struct scsi_per_res_out *)ctsio->cdb; 8179 retval = CTL_RETVAL_COMPLETE; 8180 8181 /* 8182 * We only support whole-LUN scope. The scope & type are ignored for 8183 * register, register and ignore existing key and clear. 8184 * We sometimes ignore scope and type on preempts too!! 8185 * Verify reservation type here as well. 8186 */ 8187 type = cdb->scope_type & SPR_TYPE_MASK; 8188 if ((cdb->action == SPRO_RESERVE) 8189 || (cdb->action == SPRO_RELEASE)) { 8190 if ((cdb->scope_type & SPR_SCOPE_MASK) != SPR_LU_SCOPE) { 8191 ctl_set_invalid_field(/*ctsio*/ ctsio, 8192 /*sks_valid*/ 1, 8193 /*command*/ 1, 8194 /*field*/ 2, 8195 /*bit_valid*/ 1, 8196 /*bit*/ 4); 8197 ctl_done((union ctl_io *)ctsio); 8198 return (CTL_RETVAL_COMPLETE); 8199 } 8200 8201 if (type>8 || type==2 || type==4 || type==0) { 8202 ctl_set_invalid_field(/*ctsio*/ ctsio, 8203 /*sks_valid*/ 1, 8204 /*command*/ 1, 8205 /*field*/ 2, 8206 /*bit_valid*/ 1, 8207 /*bit*/ 0); 8208 ctl_done((union ctl_io *)ctsio); 8209 return (CTL_RETVAL_COMPLETE); 8210 } 8211 } 8212 8213 param_len = scsi_4btoul(cdb->length); 8214 8215 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 8216 ctsio->kern_data_ptr = malloc(param_len, M_CTL, M_WAITOK); 8217 ctsio->kern_data_len = param_len; 8218 ctsio->kern_total_len = param_len; 8219 ctsio->kern_data_resid = 0; 8220 ctsio->kern_rel_offset = 0; 8221 ctsio->kern_sg_entries = 0; 8222 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 8223 ctsio->be_move_done = ctl_config_move_done; 8224 ctl_datamove((union ctl_io *)ctsio); 8225 8226 return (CTL_RETVAL_COMPLETE); 8227 } 8228 8229 param = (struct scsi_per_res_out_parms *)ctsio->kern_data_ptr; 8230 8231 residx = ctl_get_initindex(&ctsio->io_hdr.nexus); 8232 res_key = scsi_8btou64(param->res_key.key); 8233 sa_res_key = scsi_8btou64(param->serv_act_res_key); 8234 8235 /* 8236 * Validate the reservation key here except for SPRO_REG_IGNO 8237 * This must be done for all other service actions 8238 */ 8239 if ((cdb->action & SPRO_ACTION_MASK) != SPRO_REG_IGNO) { 8240 mtx_lock(&lun->lun_lock); 8241 if ((key = ctl_get_prkey(lun, residx)) != 0) { 8242 if (res_key != key) { 8243 /* 8244 * The current key passed in doesn't match 8245 * the one the initiator previously 8246 * registered. 8247 */ 8248 mtx_unlock(&lun->lun_lock); 8249 free(ctsio->kern_data_ptr, M_CTL); 8250 ctl_set_reservation_conflict(ctsio); 8251 ctl_done((union ctl_io *)ctsio); 8252 return (CTL_RETVAL_COMPLETE); 8253 } 8254 } else if ((cdb->action & SPRO_ACTION_MASK) != SPRO_REGISTER) { 8255 /* 8256 * We are not registered 8257 */ 8258 mtx_unlock(&lun->lun_lock); 8259 free(ctsio->kern_data_ptr, M_CTL); 8260 ctl_set_reservation_conflict(ctsio); 8261 ctl_done((union ctl_io *)ctsio); 8262 return (CTL_RETVAL_COMPLETE); 8263 } else if (res_key != 0) { 8264 /* 8265 * We are not registered and trying to register but 8266 * the register key isn't zero. 8267 */ 8268 mtx_unlock(&lun->lun_lock); 8269 free(ctsio->kern_data_ptr, M_CTL); 8270 ctl_set_reservation_conflict(ctsio); 8271 ctl_done((union ctl_io *)ctsio); 8272 return (CTL_RETVAL_COMPLETE); 8273 } 8274 mtx_unlock(&lun->lun_lock); 8275 } 8276 8277 switch (cdb->action & SPRO_ACTION_MASK) { 8278 case SPRO_REGISTER: 8279 case SPRO_REG_IGNO: { 8280 8281#if 0 8282 printf("Registration received\n"); 8283#endif 8284 8285 /* 8286 * We don't support any of these options, as we report in 8287 * the read capabilities request (see 8288 * ctl_persistent_reserve_in(), above). 8289 */ 8290 if ((param->flags & SPR_SPEC_I_PT) 8291 || (param->flags & SPR_ALL_TG_PT) 8292 || (param->flags & SPR_APTPL)) { 8293 int bit_ptr; 8294 8295 if (param->flags & SPR_APTPL) 8296 bit_ptr = 0; 8297 else if (param->flags & SPR_ALL_TG_PT) 8298 bit_ptr = 2; 8299 else /* SPR_SPEC_I_PT */ 8300 bit_ptr = 3; 8301 8302 free(ctsio->kern_data_ptr, M_CTL); 8303 ctl_set_invalid_field(ctsio, 8304 /*sks_valid*/ 1, 8305 /*command*/ 0, 8306 /*field*/ 20, 8307 /*bit_valid*/ 1, 8308 /*bit*/ bit_ptr); 8309 ctl_done((union ctl_io *)ctsio); 8310 return (CTL_RETVAL_COMPLETE); 8311 } 8312 8313 mtx_lock(&lun->lun_lock); 8314 8315 /* 8316 * The initiator wants to clear the 8317 * key/unregister. 8318 */ 8319 if (sa_res_key == 0) { 8320 if ((res_key == 0 8321 && (cdb->action & SPRO_ACTION_MASK) == SPRO_REGISTER) 8322 || ((cdb->action & SPRO_ACTION_MASK) == SPRO_REG_IGNO 8323 && ctl_get_prkey(lun, residx) == 0)) { 8324 mtx_unlock(&lun->lun_lock); 8325 goto done; 8326 } 8327 8328 ctl_clr_prkey(lun, residx); 8329 lun->pr_key_count--; 8330 8331 if (residx == lun->pr_res_idx) { 8332 lun->flags &= ~CTL_LUN_PR_RESERVED; 8333 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8334 8335 if ((lun->pr_res_type == SPR_TYPE_WR_EX_RO || 8336 lun->pr_res_type == SPR_TYPE_EX_AC_RO) && 8337 lun->pr_key_count) { 8338 /* 8339 * If the reservation is a registrants 8340 * only type we need to generate a UA 8341 * for other registered inits. The 8342 * sense code should be RESERVATIONS 8343 * RELEASED 8344 */ 8345 8346 for (i = softc->init_min; i < softc->init_max; i++){ 8347 if (ctl_get_prkey(lun, i) == 0) 8348 continue; 8349 ctl_est_ua(lun, i, 8350 CTL_UA_RES_RELEASE); 8351 } 8352 } 8353 lun->pr_res_type = 0; 8354 } else if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS) { 8355 if (lun->pr_key_count==0) { 8356 lun->flags &= ~CTL_LUN_PR_RESERVED; 8357 lun->pr_res_type = 0; 8358 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8359 } 8360 } 8361 lun->pr_generation++; 8362 mtx_unlock(&lun->lun_lock); 8363 8364 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8365 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8366 persis_io.pr.pr_info.action = CTL_PR_UNREG_KEY; 8367 persis_io.pr.pr_info.residx = residx; 8368 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8369 sizeof(persis_io.pr), M_WAITOK); 8370 } else /* sa_res_key != 0 */ { 8371 8372 /* 8373 * If we aren't registered currently then increment 8374 * the key count and set the registered flag. 8375 */ 8376 ctl_alloc_prkey(lun, residx); 8377 if (ctl_get_prkey(lun, residx) == 0) 8378 lun->pr_key_count++; 8379 ctl_set_prkey(lun, residx, sa_res_key); 8380 lun->pr_generation++; 8381 mtx_unlock(&lun->lun_lock); 8382 8383 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8384 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8385 persis_io.pr.pr_info.action = CTL_PR_REG_KEY; 8386 persis_io.pr.pr_info.residx = residx; 8387 memcpy(persis_io.pr.pr_info.sa_res_key, 8388 param->serv_act_res_key, 8389 sizeof(param->serv_act_res_key)); 8390 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8391 sizeof(persis_io.pr), M_WAITOK); 8392 } 8393 8394 break; 8395 } 8396 case SPRO_RESERVE: 8397#if 0 8398 printf("Reserve executed type %d\n", type); 8399#endif 8400 mtx_lock(&lun->lun_lock); 8401 if (lun->flags & CTL_LUN_PR_RESERVED) { 8402 /* 8403 * if this isn't the reservation holder and it's 8404 * not a "all registrants" type or if the type is 8405 * different then we have a conflict 8406 */ 8407 if ((lun->pr_res_idx != residx 8408 && lun->pr_res_idx != CTL_PR_ALL_REGISTRANTS) 8409 || lun->pr_res_type != type) { 8410 mtx_unlock(&lun->lun_lock); 8411 free(ctsio->kern_data_ptr, M_CTL); 8412 ctl_set_reservation_conflict(ctsio); 8413 ctl_done((union ctl_io *)ctsio); 8414 return (CTL_RETVAL_COMPLETE); 8415 } 8416 mtx_unlock(&lun->lun_lock); 8417 } else /* create a reservation */ { 8418 /* 8419 * If it's not an "all registrants" type record 8420 * reservation holder 8421 */ 8422 if (type != SPR_TYPE_WR_EX_AR 8423 && type != SPR_TYPE_EX_AC_AR) 8424 lun->pr_res_idx = residx; /* Res holder */ 8425 else 8426 lun->pr_res_idx = CTL_PR_ALL_REGISTRANTS; 8427 8428 lun->flags |= CTL_LUN_PR_RESERVED; 8429 lun->pr_res_type = type; 8430 8431 mtx_unlock(&lun->lun_lock); 8432 8433 /* send msg to other side */ 8434 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8435 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8436 persis_io.pr.pr_info.action = CTL_PR_RESERVE; 8437 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8438 persis_io.pr.pr_info.res_type = type; 8439 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8440 sizeof(persis_io.pr), M_WAITOK); 8441 } 8442 break; 8443 8444 case SPRO_RELEASE: 8445 mtx_lock(&lun->lun_lock); 8446 if ((lun->flags & CTL_LUN_PR_RESERVED) == 0) { 8447 /* No reservation exists return good status */ 8448 mtx_unlock(&lun->lun_lock); 8449 goto done; 8450 } 8451 /* 8452 * Is this nexus a reservation holder? 8453 */ 8454 if (lun->pr_res_idx != residx 8455 && lun->pr_res_idx != CTL_PR_ALL_REGISTRANTS) { 8456 /* 8457 * not a res holder return good status but 8458 * do nothing 8459 */ 8460 mtx_unlock(&lun->lun_lock); 8461 goto done; 8462 } 8463 8464 if (lun->pr_res_type != type) { 8465 mtx_unlock(&lun->lun_lock); 8466 free(ctsio->kern_data_ptr, M_CTL); 8467 ctl_set_illegal_pr_release(ctsio); 8468 ctl_done((union ctl_io *)ctsio); 8469 return (CTL_RETVAL_COMPLETE); 8470 } 8471 8472 /* okay to release */ 8473 lun->flags &= ~CTL_LUN_PR_RESERVED; 8474 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8475 lun->pr_res_type = 0; 8476 8477 /* 8478 * If this isn't an exclusive access reservation and NUAR 8479 * is not set, generate UA for all other registrants. 8480 */ 8481 if (type != SPR_TYPE_EX_AC && type != SPR_TYPE_WR_EX && 8482 (lun->MODE_CTRL.queue_flags & SCP_NUAR) == 0) { 8483 for (i = softc->init_min; i < softc->init_max; i++) { 8484 if (i == residx || ctl_get_prkey(lun, i) == 0) 8485 continue; 8486 ctl_est_ua(lun, i, CTL_UA_RES_RELEASE); 8487 } 8488 } 8489 mtx_unlock(&lun->lun_lock); 8490 8491 /* Send msg to other side */ 8492 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8493 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8494 persis_io.pr.pr_info.action = CTL_PR_RELEASE; 8495 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8496 sizeof(persis_io.pr), M_WAITOK); 8497 break; 8498 8499 case SPRO_CLEAR: 8500 /* send msg to other side */ 8501 8502 mtx_lock(&lun->lun_lock); 8503 lun->flags &= ~CTL_LUN_PR_RESERVED; 8504 lun->pr_res_type = 0; 8505 lun->pr_key_count = 0; 8506 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8507 8508 ctl_clr_prkey(lun, residx); 8509 for (i = 0; i < CTL_MAX_INITIATORS; i++) 8510 if (ctl_get_prkey(lun, i) != 0) { 8511 ctl_clr_prkey(lun, i); 8512 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 8513 } 8514 lun->pr_generation++; 8515 mtx_unlock(&lun->lun_lock); 8516 8517 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8518 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8519 persis_io.pr.pr_info.action = CTL_PR_CLEAR; 8520 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8521 sizeof(persis_io.pr), M_WAITOK); 8522 break; 8523 8524 case SPRO_PREEMPT: 8525 case SPRO_PRE_ABO: { 8526 int nretval; 8527 8528 nretval = ctl_pro_preempt(softc, lun, res_key, sa_res_key, type, 8529 residx, ctsio, cdb, param); 8530 if (nretval != 0) 8531 return (CTL_RETVAL_COMPLETE); 8532 break; 8533 } 8534 default: 8535 panic("%s: Invalid PR type %#x", __func__, cdb->action); 8536 } 8537 8538done: 8539 free(ctsio->kern_data_ptr, M_CTL); 8540 ctl_set_success(ctsio); 8541 ctl_done((union ctl_io *)ctsio); 8542 8543 return (retval); 8544} 8545 8546/* 8547 * This routine is for handling a message from the other SC pertaining to 8548 * persistent reserve out. All the error checking will have been done 8549 * so only perorming the action need be done here to keep the two 8550 * in sync. 8551 */ 8552static void 8553ctl_hndl_per_res_out_on_other_sc(union ctl_io *io) 8554{ 8555 struct ctl_softc *softc = CTL_SOFTC(io); 8556 union ctl_ha_msg *msg = (union ctl_ha_msg *)&io->presio.pr_msg; 8557 struct ctl_lun *lun; 8558 int i; 8559 uint32_t residx, targ_lun; 8560 8561 targ_lun = msg->hdr.nexus.targ_mapped_lun; 8562 mtx_lock(&softc->ctl_lock); 8563 if (targ_lun >= CTL_MAX_LUNS || 8564 (lun = softc->ctl_luns[targ_lun]) == NULL) { 8565 mtx_unlock(&softc->ctl_lock); 8566 return; 8567 } 8568 mtx_lock(&lun->lun_lock); 8569 mtx_unlock(&softc->ctl_lock); 8570 if (lun->flags & CTL_LUN_DISABLED) { 8571 mtx_unlock(&lun->lun_lock); 8572 return; 8573 } 8574 residx = ctl_get_initindex(&msg->hdr.nexus); 8575 switch(msg->pr.pr_info.action) { 8576 case CTL_PR_REG_KEY: 8577 ctl_alloc_prkey(lun, msg->pr.pr_info.residx); 8578 if (ctl_get_prkey(lun, msg->pr.pr_info.residx) == 0) 8579 lun->pr_key_count++; 8580 ctl_set_prkey(lun, msg->pr.pr_info.residx, 8581 scsi_8btou64(msg->pr.pr_info.sa_res_key)); 8582 lun->pr_generation++; 8583 break; 8584 8585 case CTL_PR_UNREG_KEY: 8586 ctl_clr_prkey(lun, msg->pr.pr_info.residx); 8587 lun->pr_key_count--; 8588 8589 /* XXX Need to see if the reservation has been released */ 8590 /* if so do we need to generate UA? */ 8591 if (msg->pr.pr_info.residx == lun->pr_res_idx) { 8592 lun->flags &= ~CTL_LUN_PR_RESERVED; 8593 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8594 8595 if ((lun->pr_res_type == SPR_TYPE_WR_EX_RO || 8596 lun->pr_res_type == SPR_TYPE_EX_AC_RO) && 8597 lun->pr_key_count) { 8598 /* 8599 * If the reservation is a registrants 8600 * only type we need to generate a UA 8601 * for other registered inits. The 8602 * sense code should be RESERVATIONS 8603 * RELEASED 8604 */ 8605 8606 for (i = softc->init_min; i < softc->init_max; i++) { 8607 if (ctl_get_prkey(lun, i) == 0) 8608 continue; 8609 8610 ctl_est_ua(lun, i, CTL_UA_RES_RELEASE); 8611 } 8612 } 8613 lun->pr_res_type = 0; 8614 } else if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS) { 8615 if (lun->pr_key_count==0) { 8616 lun->flags &= ~CTL_LUN_PR_RESERVED; 8617 lun->pr_res_type = 0; 8618 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8619 } 8620 } 8621 lun->pr_generation++; 8622 break; 8623 8624 case CTL_PR_RESERVE: 8625 lun->flags |= CTL_LUN_PR_RESERVED; 8626 lun->pr_res_type = msg->pr.pr_info.res_type; 8627 lun->pr_res_idx = msg->pr.pr_info.residx; 8628 8629 break; 8630 8631 case CTL_PR_RELEASE: 8632 /* 8633 * If this isn't an exclusive access reservation and NUAR 8634 * is not set, generate UA for all other registrants. 8635 */ 8636 if (lun->pr_res_type != SPR_TYPE_EX_AC && 8637 lun->pr_res_type != SPR_TYPE_WR_EX && 8638 (lun->MODE_CTRL.queue_flags & SCP_NUAR) == 0) { 8639 for (i = softc->init_min; i < softc->init_max; i++) 8640 if (i == residx || ctl_get_prkey(lun, i) == 0) 8641 continue; 8642 ctl_est_ua(lun, i, CTL_UA_RES_RELEASE); 8643 } 8644 8645 lun->flags &= ~CTL_LUN_PR_RESERVED; 8646 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8647 lun->pr_res_type = 0; 8648 break; 8649 8650 case CTL_PR_PREEMPT: 8651 ctl_pro_preempt_other(lun, msg); 8652 break; 8653 case CTL_PR_CLEAR: 8654 lun->flags &= ~CTL_LUN_PR_RESERVED; 8655 lun->pr_res_type = 0; 8656 lun->pr_key_count = 0; 8657 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8658 8659 for (i=0; i < CTL_MAX_INITIATORS; i++) { 8660 if (ctl_get_prkey(lun, i) == 0) 8661 continue; 8662 ctl_clr_prkey(lun, i); 8663 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 8664 } 8665 lun->pr_generation++; 8666 break; 8667 } 8668 8669 mtx_unlock(&lun->lun_lock); 8670} 8671 8672int 8673ctl_read_write(struct ctl_scsiio *ctsio) 8674{ 8675 struct ctl_lun *lun = CTL_LUN(ctsio); 8676 struct ctl_lba_len_flags *lbalen; 8677 uint64_t lba; 8678 uint32_t num_blocks; 8679 int flags, retval; 8680 int isread; 8681 8682 CTL_DEBUG_PRINT(("ctl_read_write: command: %#x\n", ctsio->cdb[0])); 8683 8684 flags = 0; 8685 isread = ctsio->cdb[0] == READ_6 || ctsio->cdb[0] == READ_10 8686 || ctsio->cdb[0] == READ_12 || ctsio->cdb[0] == READ_16; 8687 switch (ctsio->cdb[0]) { 8688 case READ_6: 8689 case WRITE_6: { 8690 struct scsi_rw_6 *cdb; 8691 8692 cdb = (struct scsi_rw_6 *)ctsio->cdb; 8693 8694 lba = scsi_3btoul(cdb->addr); 8695 /* only 5 bits are valid in the most significant address byte */ 8696 lba &= 0x1fffff; 8697 num_blocks = cdb->length; 8698 /* 8699 * This is correct according to SBC-2. 8700 */ 8701 if (num_blocks == 0) 8702 num_blocks = 256; 8703 break; 8704 } 8705 case READ_10: 8706 case WRITE_10: { 8707 struct scsi_rw_10 *cdb; 8708 8709 cdb = (struct scsi_rw_10 *)ctsio->cdb; 8710 if (cdb->byte2 & SRW10_FUA) 8711 flags |= CTL_LLF_FUA; 8712 if (cdb->byte2 & SRW10_DPO) 8713 flags |= CTL_LLF_DPO; 8714 lba = scsi_4btoul(cdb->addr); 8715 num_blocks = scsi_2btoul(cdb->length); 8716 break; 8717 } 8718 case WRITE_VERIFY_10: { 8719 struct scsi_write_verify_10 *cdb; 8720 8721 cdb = (struct scsi_write_verify_10 *)ctsio->cdb; 8722 flags |= CTL_LLF_FUA; 8723 if (cdb->byte2 & SWV_DPO) 8724 flags |= CTL_LLF_DPO; 8725 lba = scsi_4btoul(cdb->addr); 8726 num_blocks = scsi_2btoul(cdb->length); 8727 break; 8728 } 8729 case READ_12: 8730 case WRITE_12: { 8731 struct scsi_rw_12 *cdb; 8732 8733 cdb = (struct scsi_rw_12 *)ctsio->cdb; 8734 if (cdb->byte2 & SRW12_FUA) 8735 flags |= CTL_LLF_FUA; 8736 if (cdb->byte2 & SRW12_DPO) 8737 flags |= CTL_LLF_DPO; 8738 lba = scsi_4btoul(cdb->addr); 8739 num_blocks = scsi_4btoul(cdb->length); 8740 break; 8741 } 8742 case WRITE_VERIFY_12: { 8743 struct scsi_write_verify_12 *cdb; 8744 8745 cdb = (struct scsi_write_verify_12 *)ctsio->cdb; 8746 flags |= CTL_LLF_FUA; 8747 if (cdb->byte2 & SWV_DPO) 8748 flags |= CTL_LLF_DPO; 8749 lba = scsi_4btoul(cdb->addr); 8750 num_blocks = scsi_4btoul(cdb->length); 8751 break; 8752 } 8753 case READ_16: 8754 case WRITE_16: { 8755 struct scsi_rw_16 *cdb; 8756 8757 cdb = (struct scsi_rw_16 *)ctsio->cdb; 8758 if (cdb->byte2 & SRW12_FUA) 8759 flags |= CTL_LLF_FUA; 8760 if (cdb->byte2 & SRW12_DPO) 8761 flags |= CTL_LLF_DPO; 8762 lba = scsi_8btou64(cdb->addr); 8763 num_blocks = scsi_4btoul(cdb->length); 8764 break; 8765 } 8766 case WRITE_ATOMIC_16: { 8767 struct scsi_write_atomic_16 *cdb; 8768 8769 if (lun->be_lun->atomicblock == 0) { 8770 ctl_set_invalid_opcode(ctsio); 8771 ctl_done((union ctl_io *)ctsio); 8772 return (CTL_RETVAL_COMPLETE); 8773 } 8774 8775 cdb = (struct scsi_write_atomic_16 *)ctsio->cdb; 8776 if (cdb->byte2 & SRW12_FUA) 8777 flags |= CTL_LLF_FUA; 8778 if (cdb->byte2 & SRW12_DPO) 8779 flags |= CTL_LLF_DPO; 8780 lba = scsi_8btou64(cdb->addr); 8781 num_blocks = scsi_2btoul(cdb->length); 8782 if (num_blocks > lun->be_lun->atomicblock) { 8783 ctl_set_invalid_field(ctsio, /*sks_valid*/ 1, 8784 /*command*/ 1, /*field*/ 12, /*bit_valid*/ 0, 8785 /*bit*/ 0); 8786 ctl_done((union ctl_io *)ctsio); 8787 return (CTL_RETVAL_COMPLETE); 8788 } 8789 break; 8790 } 8791 case WRITE_VERIFY_16: { 8792 struct scsi_write_verify_16 *cdb; 8793 8794 cdb = (struct scsi_write_verify_16 *)ctsio->cdb; 8795 flags |= CTL_LLF_FUA; 8796 if (cdb->byte2 & SWV_DPO) 8797 flags |= CTL_LLF_DPO; 8798 lba = scsi_8btou64(cdb->addr); 8799 num_blocks = scsi_4btoul(cdb->length); 8800 break; 8801 } 8802 default: 8803 /* 8804 * We got a command we don't support. This shouldn't 8805 * happen, commands should be filtered out above us. 8806 */ 8807 ctl_set_invalid_opcode(ctsio); 8808 ctl_done((union ctl_io *)ctsio); 8809 8810 return (CTL_RETVAL_COMPLETE); 8811 break; /* NOTREACHED */ 8812 } 8813 8814 /* 8815 * The first check is to make sure we're in bounds, the second 8816 * check is to catch wrap-around problems. If the lba + num blocks 8817 * is less than the lba, then we've wrapped around and the block 8818 * range is invalid anyway. 8819 */ 8820 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 8821 || ((lba + num_blocks) < lba)) { 8822 ctl_set_lba_out_of_range(ctsio, 8823 MAX(lba, lun->be_lun->maxlba + 1)); 8824 ctl_done((union ctl_io *)ctsio); 8825 return (CTL_RETVAL_COMPLETE); 8826 } 8827 8828 /* 8829 * According to SBC-3, a transfer length of 0 is not an error. 8830 * Note that this cannot happen with WRITE(6) or READ(6), since 0 8831 * translates to 256 blocks for those commands. 8832 */ 8833 if (num_blocks == 0) { 8834 ctl_set_success(ctsio); 8835 ctl_done((union ctl_io *)ctsio); 8836 return (CTL_RETVAL_COMPLETE); 8837 } 8838 8839 /* Set FUA and/or DPO if caches are disabled. */ 8840 if (isread) { 8841 if ((lun->MODE_CACHING.flags1 & SCP_RCD) != 0) 8842 flags |= CTL_LLF_FUA | CTL_LLF_DPO; 8843 } else { 8844 if ((lun->MODE_CACHING.flags1 & SCP_WCE) == 0) 8845 flags |= CTL_LLF_FUA; 8846 } 8847 8848 lbalen = (struct ctl_lba_len_flags *) 8849 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 8850 lbalen->lba = lba; 8851 lbalen->len = num_blocks; 8852 lbalen->flags = (isread ? CTL_LLF_READ : CTL_LLF_WRITE) | flags; 8853 8854 ctsio->kern_total_len = num_blocks * lun->be_lun->blocksize; 8855 ctsio->kern_rel_offset = 0; 8856 8857 CTL_DEBUG_PRINT(("ctl_read_write: calling data_submit()\n")); 8858 8859 retval = lun->backend->data_submit((union ctl_io *)ctsio); 8860 return (retval); 8861} 8862 8863static int 8864ctl_cnw_cont(union ctl_io *io) 8865{ 8866 struct ctl_lun *lun = CTL_LUN(io); 8867 struct ctl_scsiio *ctsio; 8868 struct ctl_lba_len_flags *lbalen; 8869 int retval; 8870 8871 ctsio = &io->scsiio; 8872 ctsio->io_hdr.status = CTL_STATUS_NONE; 8873 ctsio->io_hdr.flags &= ~CTL_FLAG_IO_CONT; 8874 lbalen = (struct ctl_lba_len_flags *) 8875 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 8876 lbalen->flags &= ~CTL_LLF_COMPARE; 8877 lbalen->flags |= CTL_LLF_WRITE; 8878 8879 CTL_DEBUG_PRINT(("ctl_cnw_cont: calling data_submit()\n")); 8880 retval = lun->backend->data_submit((union ctl_io *)ctsio); 8881 return (retval); 8882} 8883 8884int 8885ctl_cnw(struct ctl_scsiio *ctsio) 8886{ 8887 struct ctl_lun *lun = CTL_LUN(ctsio); 8888 struct ctl_lba_len_flags *lbalen; 8889 uint64_t lba; 8890 uint32_t num_blocks; 8891 int flags, retval; 8892 8893 CTL_DEBUG_PRINT(("ctl_cnw: command: %#x\n", ctsio->cdb[0])); 8894 8895 flags = 0; 8896 switch (ctsio->cdb[0]) { 8897 case COMPARE_AND_WRITE: { 8898 struct scsi_compare_and_write *cdb; 8899 8900 cdb = (struct scsi_compare_and_write *)ctsio->cdb; 8901 if (cdb->byte2 & SRW10_FUA) 8902 flags |= CTL_LLF_FUA; 8903 if (cdb->byte2 & SRW10_DPO) 8904 flags |= CTL_LLF_DPO; 8905 lba = scsi_8btou64(cdb->addr); 8906 num_blocks = cdb->length; 8907 break; 8908 } 8909 default: 8910 /* 8911 * We got a command we don't support. This shouldn't 8912 * happen, commands should be filtered out above us. 8913 */ 8914 ctl_set_invalid_opcode(ctsio); 8915 ctl_done((union ctl_io *)ctsio); 8916 8917 return (CTL_RETVAL_COMPLETE); 8918 break; /* NOTREACHED */ 8919 } 8920 8921 /* 8922 * The first check is to make sure we're in bounds, the second 8923 * check is to catch wrap-around problems. If the lba + num blocks 8924 * is less than the lba, then we've wrapped around and the block 8925 * range is invalid anyway. 8926 */ 8927 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 8928 || ((lba + num_blocks) < lba)) { 8929 ctl_set_lba_out_of_range(ctsio, 8930 MAX(lba, lun->be_lun->maxlba + 1)); 8931 ctl_done((union ctl_io *)ctsio); 8932 return (CTL_RETVAL_COMPLETE); 8933 } 8934 8935 /* 8936 * According to SBC-3, a transfer length of 0 is not an error. 8937 */ 8938 if (num_blocks == 0) { 8939 ctl_set_success(ctsio); 8940 ctl_done((union ctl_io *)ctsio); 8941 return (CTL_RETVAL_COMPLETE); 8942 } 8943 8944 /* Set FUA if write cache is disabled. */ 8945 if ((lun->MODE_CACHING.flags1 & SCP_WCE) == 0) 8946 flags |= CTL_LLF_FUA; 8947 8948 ctsio->kern_total_len = 2 * num_blocks * lun->be_lun->blocksize; 8949 ctsio->kern_rel_offset = 0; 8950 8951 /* 8952 * Set the IO_CONT flag, so that if this I/O gets passed to 8953 * ctl_data_submit_done(), it'll get passed back to 8954 * ctl_ctl_cnw_cont() for further processing. 8955 */ 8956 ctsio->io_hdr.flags |= CTL_FLAG_IO_CONT; 8957 ctsio->io_cont = ctl_cnw_cont; 8958 8959 lbalen = (struct ctl_lba_len_flags *) 8960 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 8961 lbalen->lba = lba; 8962 lbalen->len = num_blocks; 8963 lbalen->flags = CTL_LLF_COMPARE | flags; 8964 8965 CTL_DEBUG_PRINT(("ctl_cnw: calling data_submit()\n")); 8966 retval = lun->backend->data_submit((union ctl_io *)ctsio); 8967 return (retval); 8968} 8969 8970int 8971ctl_verify(struct ctl_scsiio *ctsio) 8972{ 8973 struct ctl_lun *lun = CTL_LUN(ctsio); 8974 struct ctl_lba_len_flags *lbalen; 8975 uint64_t lba; 8976 uint32_t num_blocks; 8977 int bytchk, flags; 8978 int retval; 8979 8980 CTL_DEBUG_PRINT(("ctl_verify: command: %#x\n", ctsio->cdb[0])); 8981 8982 bytchk = 0; 8983 flags = CTL_LLF_FUA; 8984 switch (ctsio->cdb[0]) { 8985 case VERIFY_10: { 8986 struct scsi_verify_10 *cdb; 8987 8988 cdb = (struct scsi_verify_10 *)ctsio->cdb; 8989 if (cdb->byte2 & SVFY_BYTCHK) 8990 bytchk = 1; 8991 if (cdb->byte2 & SVFY_DPO) 8992 flags |= CTL_LLF_DPO; 8993 lba = scsi_4btoul(cdb->addr); 8994 num_blocks = scsi_2btoul(cdb->length); 8995 break; 8996 } 8997 case VERIFY_12: { 8998 struct scsi_verify_12 *cdb; 8999 9000 cdb = (struct scsi_verify_12 *)ctsio->cdb; 9001 if (cdb->byte2 & SVFY_BYTCHK) 9002 bytchk = 1; 9003 if (cdb->byte2 & SVFY_DPO) 9004 flags |= CTL_LLF_DPO; 9005 lba = scsi_4btoul(cdb->addr); 9006 num_blocks = scsi_4btoul(cdb->length); 9007 break; 9008 } 9009 case VERIFY_16: { 9010 struct scsi_rw_16 *cdb; 9011 9012 cdb = (struct scsi_rw_16 *)ctsio->cdb; 9013 if (cdb->byte2 & SVFY_BYTCHK) 9014 bytchk = 1; 9015 if (cdb->byte2 & SVFY_DPO) 9016 flags |= CTL_LLF_DPO; 9017 lba = scsi_8btou64(cdb->addr); 9018 num_blocks = scsi_4btoul(cdb->length); 9019 break; 9020 } 9021 default: 9022 /* 9023 * We got a command we don't support. This shouldn't 9024 * happen, commands should be filtered out above us. 9025 */ 9026 ctl_set_invalid_opcode(ctsio); 9027 ctl_done((union ctl_io *)ctsio); 9028 return (CTL_RETVAL_COMPLETE); 9029 } 9030 9031 /* 9032 * The first check is to make sure we're in bounds, the second 9033 * check is to catch wrap-around problems. If the lba + num blocks 9034 * is less than the lba, then we've wrapped around and the block 9035 * range is invalid anyway. 9036 */ 9037 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 9038 || ((lba + num_blocks) < lba)) { 9039 ctl_set_lba_out_of_range(ctsio, 9040 MAX(lba, lun->be_lun->maxlba + 1)); 9041 ctl_done((union ctl_io *)ctsio); 9042 return (CTL_RETVAL_COMPLETE); 9043 } 9044 9045 /* 9046 * According to SBC-3, a transfer length of 0 is not an error. 9047 */ 9048 if (num_blocks == 0) { 9049 ctl_set_success(ctsio); 9050 ctl_done((union ctl_io *)ctsio); 9051 return (CTL_RETVAL_COMPLETE); 9052 } 9053 9054 lbalen = (struct ctl_lba_len_flags *) 9055 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 9056 lbalen->lba = lba; 9057 lbalen->len = num_blocks; 9058 if (bytchk) { 9059 lbalen->flags = CTL_LLF_COMPARE | flags; 9060 ctsio->kern_total_len = num_blocks * lun->be_lun->blocksize; 9061 } else { 9062 lbalen->flags = CTL_LLF_VERIFY | flags; 9063 ctsio->kern_total_len = 0; 9064 } 9065 ctsio->kern_rel_offset = 0; 9066 9067 CTL_DEBUG_PRINT(("ctl_verify: calling data_submit()\n")); 9068 retval = lun->backend->data_submit((union ctl_io *)ctsio); 9069 return (retval); 9070} 9071 9072int 9073ctl_report_luns(struct ctl_scsiio *ctsio) 9074{ 9075 struct ctl_softc *softc = CTL_SOFTC(ctsio); 9076 struct ctl_port *port = CTL_PORT(ctsio); 9077 struct ctl_lun *lun, *request_lun = CTL_LUN(ctsio); 9078 struct scsi_report_luns *cdb; 9079 struct scsi_report_luns_data *lun_data; 9080 int num_filled, num_luns, num_port_luns, retval; 9081 uint32_t alloc_len, lun_datalen; 9082 uint32_t initidx, targ_lun_id, lun_id; 9083 9084 retval = CTL_RETVAL_COMPLETE; 9085 cdb = (struct scsi_report_luns *)ctsio->cdb; 9086 9087 CTL_DEBUG_PRINT(("ctl_report_luns\n")); 9088 9089 num_luns = 0; 9090 num_port_luns = port->lun_map ? port->lun_map_size : CTL_MAX_LUNS; 9091 mtx_lock(&softc->ctl_lock); 9092 for (targ_lun_id = 0; targ_lun_id < num_port_luns; targ_lun_id++) { 9093 if (ctl_lun_map_from_port(port, targ_lun_id) != UINT32_MAX) 9094 num_luns++; 9095 } 9096 mtx_unlock(&softc->ctl_lock); 9097 9098 switch (cdb->select_report) { 9099 case RPL_REPORT_DEFAULT: 9100 case RPL_REPORT_ALL: 9101 case RPL_REPORT_NONSUBSID: 9102 break; 9103 case RPL_REPORT_WELLKNOWN: 9104 case RPL_REPORT_ADMIN: 9105 case RPL_REPORT_CONGLOM: 9106 num_luns = 0; 9107 break; 9108 default: 9109 ctl_set_invalid_field(ctsio, 9110 /*sks_valid*/ 1, 9111 /*command*/ 1, 9112 /*field*/ 2, 9113 /*bit_valid*/ 0, 9114 /*bit*/ 0); 9115 ctl_done((union ctl_io *)ctsio); 9116 return (retval); 9117 break; /* NOTREACHED */ 9118 } 9119 9120 alloc_len = scsi_4btoul(cdb->length); 9121 /* 9122 * The initiator has to allocate at least 16 bytes for this request, 9123 * so he can at least get the header and the first LUN. Otherwise 9124 * we reject the request (per SPC-3 rev 14, section 6.21). 9125 */ 9126 if (alloc_len < (sizeof(struct scsi_report_luns_data) + 9127 sizeof(struct scsi_report_luns_lundata))) { 9128 ctl_set_invalid_field(ctsio, 9129 /*sks_valid*/ 1, 9130 /*command*/ 1, 9131 /*field*/ 6, 9132 /*bit_valid*/ 0, 9133 /*bit*/ 0); 9134 ctl_done((union ctl_io *)ctsio); 9135 return (retval); 9136 } 9137 9138 lun_datalen = sizeof(*lun_data) + 9139 (num_luns * sizeof(struct scsi_report_luns_lundata)); 9140 9141 ctsio->kern_data_ptr = malloc(lun_datalen, M_CTL, M_WAITOK | M_ZERO); 9142 lun_data = (struct scsi_report_luns_data *)ctsio->kern_data_ptr; 9143 ctsio->kern_sg_entries = 0; 9144 9145 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 9146 9147 mtx_lock(&softc->ctl_lock); 9148 for (targ_lun_id = 0, num_filled = 0; 9149 targ_lun_id < num_port_luns && num_filled < num_luns; 9150 targ_lun_id++) { 9151 lun_id = ctl_lun_map_from_port(port, targ_lun_id); 9152 if (lun_id == UINT32_MAX) 9153 continue; 9154 lun = softc->ctl_luns[lun_id]; 9155 if (lun == NULL) 9156 continue; 9157 9158 be64enc(lun_data->luns[num_filled++].lundata, 9159 ctl_encode_lun(targ_lun_id)); 9160 9161 /* 9162 * According to SPC-3, rev 14 section 6.21: 9163 * 9164 * "The execution of a REPORT LUNS command to any valid and 9165 * installed logical unit shall clear the REPORTED LUNS DATA 9166 * HAS CHANGED unit attention condition for all logical 9167 * units of that target with respect to the requesting 9168 * initiator. A valid and installed logical unit is one 9169 * having a PERIPHERAL QUALIFIER of 000b in the standard 9170 * INQUIRY data (see 6.4.2)." 9171 * 9172 * If request_lun is NULL, the LUN this report luns command 9173 * was issued to is either disabled or doesn't exist. In that 9174 * case, we shouldn't clear any pending lun change unit 9175 * attention. 9176 */ 9177 if (request_lun != NULL) { 9178 mtx_lock(&lun->lun_lock); 9179 ctl_clr_ua(lun, initidx, CTL_UA_LUN_CHANGE); 9180 mtx_unlock(&lun->lun_lock); 9181 } 9182 } 9183 mtx_unlock(&softc->ctl_lock); 9184 9185 /* 9186 * It's quite possible that we've returned fewer LUNs than we allocated 9187 * space for. Trim it. 9188 */ 9189 lun_datalen = sizeof(*lun_data) + 9190 (num_filled * sizeof(struct scsi_report_luns_lundata)); 9191 9192 if (lun_datalen < alloc_len) { 9193 ctsio->residual = alloc_len - lun_datalen; 9194 ctsio->kern_data_len = lun_datalen; 9195 ctsio->kern_total_len = lun_datalen; 9196 } else { 9197 ctsio->residual = 0; 9198 ctsio->kern_data_len = alloc_len; 9199 ctsio->kern_total_len = alloc_len; 9200 } 9201 ctsio->kern_data_resid = 0; 9202 ctsio->kern_rel_offset = 0; 9203 ctsio->kern_sg_entries = 0; 9204 9205 /* 9206 * We set this to the actual data length, regardless of how much 9207 * space we actually have to return results. If the user looks at 9208 * this value, he'll know whether or not he allocated enough space 9209 * and reissue the command if necessary. We don't support well 9210 * known logical units, so if the user asks for that, return none. 9211 */ 9212 scsi_ulto4b(lun_datalen - 8, lun_data->length); 9213 9214 /* 9215 * We can only return SCSI_STATUS_CHECK_COND when we can't satisfy 9216 * this request. 9217 */ 9218 ctl_set_success(ctsio); 9219 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9220 ctsio->be_move_done = ctl_config_move_done; 9221 ctl_datamove((union ctl_io *)ctsio); 9222 return (retval); 9223} 9224 9225int 9226ctl_request_sense(struct ctl_scsiio *ctsio) 9227{ 9228 struct ctl_softc *softc = CTL_SOFTC(ctsio); 9229 struct ctl_lun *lun = CTL_LUN(ctsio); 9230 struct scsi_request_sense *cdb; 9231 struct scsi_sense_data *sense_ptr; 9232 uint32_t initidx; 9233 int have_error; 9234 u_int sense_len = SSD_FULL_SIZE; 9235 scsi_sense_data_type sense_format; 9236 ctl_ua_type ua_type; 9237 uint8_t asc = 0, ascq = 0; 9238 9239 cdb = (struct scsi_request_sense *)ctsio->cdb; 9240 9241 CTL_DEBUG_PRINT(("ctl_request_sense\n")); 9242 9243 /* 9244 * Determine which sense format the user wants. 9245 */ 9246 if (cdb->byte2 & SRS_DESC) 9247 sense_format = SSD_TYPE_DESC; 9248 else 9249 sense_format = SSD_TYPE_FIXED; 9250 9251 ctsio->kern_data_ptr = malloc(sizeof(*sense_ptr), M_CTL, M_WAITOK); 9252 sense_ptr = (struct scsi_sense_data *)ctsio->kern_data_ptr; 9253 ctsio->kern_sg_entries = 0; 9254 9255 /* 9256 * struct scsi_sense_data, which is currently set to 256 bytes, is 9257 * larger than the largest allowed value for the length field in the 9258 * REQUEST SENSE CDB, which is 252 bytes as of SPC-4. 9259 */ 9260 ctsio->residual = 0; 9261 ctsio->kern_data_len = cdb->length; 9262 ctsio->kern_total_len = cdb->length; 9263 9264 ctsio->kern_data_resid = 0; 9265 ctsio->kern_rel_offset = 0; 9266 ctsio->kern_sg_entries = 0; 9267 9268 /* 9269 * If we don't have a LUN, we don't have any pending sense. 9270 */ 9271 if (lun == NULL || 9272 ((lun->flags & CTL_LUN_PRIMARY_SC) == 0 && 9273 softc->ha_link < CTL_HA_LINK_UNKNOWN)) { 9274 /* "Logical unit not supported" */ 9275 ctl_set_sense_data(sense_ptr, &sense_len, NULL, sense_format, 9276 /*current_error*/ 1, 9277 /*sense_key*/ SSD_KEY_ILLEGAL_REQUEST, 9278 /*asc*/ 0x25, 9279 /*ascq*/ 0x00, 9280 SSD_ELEM_NONE); 9281 goto send; 9282 } 9283 9284 have_error = 0; 9285 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 9286 /* 9287 * Check for pending sense, and then for pending unit attentions. 9288 * Pending sense gets returned first, then pending unit attentions. 9289 */ 9290 mtx_lock(&lun->lun_lock); 9291#ifdef CTL_WITH_CA 9292 if (ctl_is_set(lun->have_ca, initidx)) { 9293 scsi_sense_data_type stored_format; 9294 9295 /* 9296 * Check to see which sense format was used for the stored 9297 * sense data. 9298 */ 9299 stored_format = scsi_sense_type(&lun->pending_sense[initidx]); 9300 9301 /* 9302 * If the user requested a different sense format than the 9303 * one we stored, then we need to convert it to the other 9304 * format. If we're going from descriptor to fixed format 9305 * sense data, we may lose things in translation, depending 9306 * on what options were used. 9307 * 9308 * If the stored format is SSD_TYPE_NONE (i.e. invalid), 9309 * for some reason we'll just copy it out as-is. 9310 */ 9311 if ((stored_format == SSD_TYPE_FIXED) 9312 && (sense_format == SSD_TYPE_DESC)) 9313 ctl_sense_to_desc((struct scsi_sense_data_fixed *) 9314 &lun->pending_sense[initidx], 9315 (struct scsi_sense_data_desc *)sense_ptr); 9316 else if ((stored_format == SSD_TYPE_DESC) 9317 && (sense_format == SSD_TYPE_FIXED)) 9318 ctl_sense_to_fixed((struct scsi_sense_data_desc *) 9319 &lun->pending_sense[initidx], 9320 (struct scsi_sense_data_fixed *)sense_ptr); 9321 else 9322 memcpy(sense_ptr, &lun->pending_sense[initidx], 9323 MIN(sizeof(*sense_ptr), 9324 sizeof(lun->pending_sense[initidx]))); 9325 9326 ctl_clear_mask(lun->have_ca, initidx); 9327 have_error = 1; 9328 } else 9329#endif 9330 if (have_error == 0) { 9331 ua_type = ctl_build_ua(lun, initidx, sense_ptr, &sense_len, 9332 sense_format); 9333 if (ua_type != CTL_UA_NONE) 9334 have_error = 1; 9335 } 9336 if (have_error == 0) { 9337 /* 9338 * Report informational exception if have one and allowed. 9339 */ 9340 if (lun->MODE_IE.mrie != SIEP_MRIE_NO) { 9341 asc = lun->ie_asc; 9342 ascq = lun->ie_ascq; 9343 } 9344 ctl_set_sense_data(sense_ptr, &sense_len, lun, sense_format, 9345 /*current_error*/ 1, 9346 /*sense_key*/ SSD_KEY_NO_SENSE, 9347 /*asc*/ asc, 9348 /*ascq*/ ascq, 9349 SSD_ELEM_NONE); 9350 } 9351 mtx_unlock(&lun->lun_lock); 9352 9353send: 9354 /* 9355 * We report the SCSI status as OK, since the status of the command 9356 * itself is OK. We're reporting sense as parameter data. 9357 */ 9358 ctl_set_success(ctsio); 9359 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9360 ctsio->be_move_done = ctl_config_move_done; 9361 ctl_datamove((union ctl_io *)ctsio); 9362 return (CTL_RETVAL_COMPLETE); 9363} 9364 9365int 9366ctl_tur(struct ctl_scsiio *ctsio) 9367{ 9368 9369 CTL_DEBUG_PRINT(("ctl_tur\n")); 9370 9371 ctl_set_success(ctsio); 9372 ctl_done((union ctl_io *)ctsio); 9373 9374 return (CTL_RETVAL_COMPLETE); 9375} 9376 9377/* 9378 * SCSI VPD page 0x00, the Supported VPD Pages page. 9379 */ 9380static int 9381ctl_inquiry_evpd_supported(struct ctl_scsiio *ctsio, int alloc_len) 9382{ 9383 struct ctl_lun *lun = CTL_LUN(ctsio); 9384 struct scsi_vpd_supported_pages *pages; 9385 int sup_page_size; 9386 int p; 9387 9388 sup_page_size = sizeof(struct scsi_vpd_supported_pages) * 9389 SCSI_EVPD_NUM_SUPPORTED_PAGES; 9390 ctsio->kern_data_ptr = malloc(sup_page_size, M_CTL, M_WAITOK | M_ZERO); 9391 pages = (struct scsi_vpd_supported_pages *)ctsio->kern_data_ptr; 9392 ctsio->kern_sg_entries = 0; 9393 9394 if (sup_page_size < alloc_len) { 9395 ctsio->residual = alloc_len - sup_page_size; 9396 ctsio->kern_data_len = sup_page_size; 9397 ctsio->kern_total_len = sup_page_size; 9398 } else { 9399 ctsio->residual = 0; 9400 ctsio->kern_data_len = alloc_len; 9401 ctsio->kern_total_len = alloc_len; 9402 } 9403 ctsio->kern_data_resid = 0; 9404 ctsio->kern_rel_offset = 0; 9405 ctsio->kern_sg_entries = 0; 9406 9407 /* 9408 * The control device is always connected. The disk device, on the 9409 * other hand, may not be online all the time. Need to change this 9410 * to figure out whether the disk device is actually online or not. 9411 */ 9412 if (lun != NULL) 9413 pages->device = (SID_QUAL_LU_CONNECTED << 5) | 9414 lun->be_lun->lun_type; 9415 else 9416 pages->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9417 9418 p = 0; 9419 /* Supported VPD pages */ 9420 pages->page_list[p++] = SVPD_SUPPORTED_PAGES; 9421 /* Serial Number */ 9422 pages->page_list[p++] = SVPD_UNIT_SERIAL_NUMBER; 9423 /* Device Identification */ 9424 pages->page_list[p++] = SVPD_DEVICE_ID; 9425 /* Extended INQUIRY Data */ 9426 pages->page_list[p++] = SVPD_EXTENDED_INQUIRY_DATA; 9427 /* Mode Page Policy */ 9428 pages->page_list[p++] = SVPD_MODE_PAGE_POLICY; 9429 /* SCSI Ports */ 9430 pages->page_list[p++] = SVPD_SCSI_PORTS; 9431 /* Third-party Copy */ 9432 pages->page_list[p++] = SVPD_SCSI_TPC; 9433 if (lun != NULL && lun->be_lun->lun_type == T_DIRECT) { 9434 /* Block limits */ 9435 pages->page_list[p++] = SVPD_BLOCK_LIMITS; 9436 /* Block Device Characteristics */ 9437 pages->page_list[p++] = SVPD_BDC; 9438 /* Logical Block Provisioning */ 9439 pages->page_list[p++] = SVPD_LBP; 9440 } 9441 pages->length = p; 9442 9443 ctl_set_success(ctsio); 9444 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9445 ctsio->be_move_done = ctl_config_move_done; 9446 ctl_datamove((union ctl_io *)ctsio); 9447 return (CTL_RETVAL_COMPLETE); 9448} 9449 9450/* 9451 * SCSI VPD page 0x80, the Unit Serial Number page. 9452 */ 9453static int 9454ctl_inquiry_evpd_serial(struct ctl_scsiio *ctsio, int alloc_len) 9455{ 9456 struct ctl_lun *lun = CTL_LUN(ctsio); 9457 struct scsi_vpd_unit_serial_number *sn_ptr; 9458 int data_len; 9459 9460 data_len = 4 + CTL_SN_LEN; 9461 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9462 sn_ptr = (struct scsi_vpd_unit_serial_number *)ctsio->kern_data_ptr; 9463 if (data_len < alloc_len) { 9464 ctsio->residual = alloc_len - data_len; 9465 ctsio->kern_data_len = data_len; 9466 ctsio->kern_total_len = data_len; 9467 } else { 9468 ctsio->residual = 0; 9469 ctsio->kern_data_len = alloc_len; 9470 ctsio->kern_total_len = alloc_len; 9471 } 9472 ctsio->kern_data_resid = 0; 9473 ctsio->kern_rel_offset = 0; 9474 ctsio->kern_sg_entries = 0; 9475 9476 /* 9477 * The control device is always connected. The disk device, on the 9478 * other hand, may not be online all the time. Need to change this 9479 * to figure out whether the disk device is actually online or not. 9480 */ 9481 if (lun != NULL) 9482 sn_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9483 lun->be_lun->lun_type; 9484 else 9485 sn_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9486 9487 sn_ptr->page_code = SVPD_UNIT_SERIAL_NUMBER; 9488 sn_ptr->length = CTL_SN_LEN; 9489 /* 9490 * If we don't have a LUN, we just leave the serial number as 9491 * all spaces. 9492 */ 9493 if (lun != NULL) { 9494 strncpy((char *)sn_ptr->serial_num, 9495 (char *)lun->be_lun->serial_num, CTL_SN_LEN); 9496 } else 9497 memset(sn_ptr->serial_num, 0x20, CTL_SN_LEN); 9498 9499 ctl_set_success(ctsio); 9500 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9501 ctsio->be_move_done = ctl_config_move_done; 9502 ctl_datamove((union ctl_io *)ctsio); 9503 return (CTL_RETVAL_COMPLETE); 9504} 9505 9506 9507/* 9508 * SCSI VPD page 0x86, the Extended INQUIRY Data page. 9509 */ 9510static int 9511ctl_inquiry_evpd_eid(struct ctl_scsiio *ctsio, int alloc_len) 9512{ 9513 struct ctl_lun *lun = CTL_LUN(ctsio); 9514 struct scsi_vpd_extended_inquiry_data *eid_ptr; 9515 int data_len; 9516 9517 data_len = sizeof(struct scsi_vpd_extended_inquiry_data); 9518 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9519 eid_ptr = (struct scsi_vpd_extended_inquiry_data *)ctsio->kern_data_ptr; 9520 ctsio->kern_sg_entries = 0; 9521 9522 if (data_len < alloc_len) { 9523 ctsio->residual = alloc_len - data_len; 9524 ctsio->kern_data_len = data_len; 9525 ctsio->kern_total_len = data_len; 9526 } else { 9527 ctsio->residual = 0; 9528 ctsio->kern_data_len = alloc_len; 9529 ctsio->kern_total_len = alloc_len; 9530 } 9531 ctsio->kern_data_resid = 0; 9532 ctsio->kern_rel_offset = 0; 9533 ctsio->kern_sg_entries = 0; 9534 9535 /* 9536 * The control device is always connected. The disk device, on the 9537 * other hand, may not be online all the time. 9538 */ 9539 if (lun != NULL) 9540 eid_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9541 lun->be_lun->lun_type; 9542 else 9543 eid_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9544 eid_ptr->page_code = SVPD_EXTENDED_INQUIRY_DATA; 9545 scsi_ulto2b(data_len - 4, eid_ptr->page_length); 9546 /* 9547 * We support head of queue, ordered and simple tags. 9548 */ 9549 eid_ptr->flags2 = SVPD_EID_HEADSUP | SVPD_EID_ORDSUP | SVPD_EID_SIMPSUP; 9550 /* 9551 * Volatile cache supported. 9552 */ 9553 eid_ptr->flags3 = SVPD_EID_V_SUP; 9554 9555 /* 9556 * This means that we clear the REPORTED LUNS DATA HAS CHANGED unit 9557 * attention for a particular IT nexus on all LUNs once we report 9558 * it to that nexus once. This bit is required as of SPC-4. 9559 */ 9560 eid_ptr->flags4 = SVPD_EID_LUICLR; 9561 9562 /* 9563 * We support revert to defaults (RTD) bit in MODE SELECT. 9564 */ 9565 eid_ptr->flags5 = SVPD_EID_RTD_SUP; 9566 9567 /* 9568 * XXX KDM in order to correctly answer this, we would need 9569 * information from the SIM to determine how much sense data it 9570 * can send. So this would really be a path inquiry field, most 9571 * likely. This can be set to a maximum of 252 according to SPC-4, 9572 * but the hardware may or may not be able to support that much. 9573 * 0 just means that the maximum sense data length is not reported. 9574 */ 9575 eid_ptr->max_sense_length = 0; 9576 9577 ctl_set_success(ctsio); 9578 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9579 ctsio->be_move_done = ctl_config_move_done; 9580 ctl_datamove((union ctl_io *)ctsio); 9581 return (CTL_RETVAL_COMPLETE); 9582} 9583 9584static int 9585ctl_inquiry_evpd_mpp(struct ctl_scsiio *ctsio, int alloc_len) 9586{ 9587 struct ctl_lun *lun = CTL_LUN(ctsio); 9588 struct scsi_vpd_mode_page_policy *mpp_ptr; 9589 int data_len; 9590 9591 data_len = sizeof(struct scsi_vpd_mode_page_policy) + 9592 sizeof(struct scsi_vpd_mode_page_policy_descr); 9593 9594 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9595 mpp_ptr = (struct scsi_vpd_mode_page_policy *)ctsio->kern_data_ptr; 9596 ctsio->kern_sg_entries = 0; 9597 9598 if (data_len < alloc_len) { 9599 ctsio->residual = alloc_len - data_len; 9600 ctsio->kern_data_len = data_len; 9601 ctsio->kern_total_len = data_len; 9602 } else { 9603 ctsio->residual = 0; 9604 ctsio->kern_data_len = alloc_len; 9605 ctsio->kern_total_len = alloc_len; 9606 } 9607 ctsio->kern_data_resid = 0; 9608 ctsio->kern_rel_offset = 0; 9609 ctsio->kern_sg_entries = 0; 9610 9611 /* 9612 * The control device is always connected. The disk device, on the 9613 * other hand, may not be online all the time. 9614 */ 9615 if (lun != NULL) 9616 mpp_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9617 lun->be_lun->lun_type; 9618 else 9619 mpp_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9620 mpp_ptr->page_code = SVPD_MODE_PAGE_POLICY; 9621 scsi_ulto2b(data_len - 4, mpp_ptr->page_length); 9622 mpp_ptr->descr[0].page_code = 0x3f; 9623 mpp_ptr->descr[0].subpage_code = 0xff; 9624 mpp_ptr->descr[0].policy = SVPD_MPP_SHARED; 9625 9626 ctl_set_success(ctsio); 9627 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9628 ctsio->be_move_done = ctl_config_move_done; 9629 ctl_datamove((union ctl_io *)ctsio); 9630 return (CTL_RETVAL_COMPLETE); 9631} 9632 9633/* 9634 * SCSI VPD page 0x83, the Device Identification page. 9635 */ 9636static int 9637ctl_inquiry_evpd_devid(struct ctl_scsiio *ctsio, int alloc_len) 9638{ 9639 struct ctl_softc *softc = CTL_SOFTC(ctsio); 9640 struct ctl_port *port = CTL_PORT(ctsio); 9641 struct ctl_lun *lun = CTL_LUN(ctsio); 9642 struct scsi_vpd_device_id *devid_ptr; 9643 struct scsi_vpd_id_descriptor *desc; 9644 int data_len, g; 9645 uint8_t proto; 9646 9647 data_len = sizeof(struct scsi_vpd_device_id) + 9648 sizeof(struct scsi_vpd_id_descriptor) + 9649 sizeof(struct scsi_vpd_id_rel_trgt_port_id) + 9650 sizeof(struct scsi_vpd_id_descriptor) + 9651 sizeof(struct scsi_vpd_id_trgt_port_grp_id); 9652 if (lun && lun->lun_devid) 9653 data_len += lun->lun_devid->len; 9654 if (port && port->port_devid) 9655 data_len += port->port_devid->len; 9656 if (port && port->target_devid) 9657 data_len += port->target_devid->len; 9658 9659 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9660 devid_ptr = (struct scsi_vpd_device_id *)ctsio->kern_data_ptr; 9661 ctsio->kern_sg_entries = 0; 9662 9663 if (data_len < alloc_len) { 9664 ctsio->residual = alloc_len - data_len; 9665 ctsio->kern_data_len = data_len; 9666 ctsio->kern_total_len = data_len; 9667 } else { 9668 ctsio->residual = 0; 9669 ctsio->kern_data_len = alloc_len; 9670 ctsio->kern_total_len = alloc_len; 9671 } 9672 ctsio->kern_data_resid = 0; 9673 ctsio->kern_rel_offset = 0; 9674 ctsio->kern_sg_entries = 0; 9675 9676 /* 9677 * The control device is always connected. The disk device, on the 9678 * other hand, may not be online all the time. 9679 */ 9680 if (lun != NULL) 9681 devid_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9682 lun->be_lun->lun_type; 9683 else 9684 devid_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9685 devid_ptr->page_code = SVPD_DEVICE_ID; 9686 scsi_ulto2b(data_len - 4, devid_ptr->length); 9687 9688 if (port && port->port_type == CTL_PORT_FC) 9689 proto = SCSI_PROTO_FC << 4; 9690 else if (port && port->port_type == CTL_PORT_ISCSI) 9691 proto = SCSI_PROTO_ISCSI << 4; 9692 else 9693 proto = SCSI_PROTO_SPI << 4; 9694 desc = (struct scsi_vpd_id_descriptor *)devid_ptr->desc_list; 9695 9696 /* 9697 * We're using a LUN association here. i.e., this device ID is a 9698 * per-LUN identifier. 9699 */ 9700 if (lun && lun->lun_devid) { 9701 memcpy(desc, lun->lun_devid->data, lun->lun_devid->len); 9702 desc = (struct scsi_vpd_id_descriptor *)((uint8_t *)desc + 9703 lun->lun_devid->len); 9704 } 9705 9706 /* 9707 * This is for the WWPN which is a port association. 9708 */ 9709 if (port && port->port_devid) { 9710 memcpy(desc, port->port_devid->data, port->port_devid->len); 9711 desc = (struct scsi_vpd_id_descriptor *)((uint8_t *)desc + 9712 port->port_devid->len); 9713 } 9714 9715 /* 9716 * This is for the Relative Target Port(type 4h) identifier 9717 */ 9718 desc->proto_codeset = proto | SVPD_ID_CODESET_BINARY; 9719 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_PORT | 9720 SVPD_ID_TYPE_RELTARG; 9721 desc->length = 4; 9722 scsi_ulto2b(ctsio->io_hdr.nexus.targ_port, &desc->identifier[2]); 9723 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 9724 sizeof(struct scsi_vpd_id_rel_trgt_port_id)); 9725 9726 /* 9727 * This is for the Target Port Group(type 5h) identifier 9728 */ 9729 desc->proto_codeset = proto | SVPD_ID_CODESET_BINARY; 9730 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_PORT | 9731 SVPD_ID_TYPE_TPORTGRP; 9732 desc->length = 4; 9733 if (softc->is_single || 9734 (port && port->status & CTL_PORT_STATUS_HA_SHARED)) 9735 g = 1; 9736 else 9737 g = 2 + ctsio->io_hdr.nexus.targ_port / softc->port_cnt; 9738 scsi_ulto2b(g, &desc->identifier[2]); 9739 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 9740 sizeof(struct scsi_vpd_id_trgt_port_grp_id)); 9741 9742 /* 9743 * This is for the Target identifier 9744 */ 9745 if (port && port->target_devid) { 9746 memcpy(desc, port->target_devid->data, port->target_devid->len); 9747 } 9748 9749 ctl_set_success(ctsio); 9750 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9751 ctsio->be_move_done = ctl_config_move_done; 9752 ctl_datamove((union ctl_io *)ctsio); 9753 return (CTL_RETVAL_COMPLETE); 9754} 9755 9756static int 9757ctl_inquiry_evpd_scsi_ports(struct ctl_scsiio *ctsio, int alloc_len) 9758{ 9759 struct ctl_softc *softc = CTL_SOFTC(ctsio); 9760 struct ctl_lun *lun = CTL_LUN(ctsio); 9761 struct scsi_vpd_scsi_ports *sp; 9762 struct scsi_vpd_port_designation *pd; 9763 struct scsi_vpd_port_designation_cont *pdc; 9764 struct ctl_port *port; 9765 int data_len, num_target_ports, iid_len, id_len; 9766 9767 num_target_ports = 0; 9768 iid_len = 0; 9769 id_len = 0; 9770 mtx_lock(&softc->ctl_lock); 9771 STAILQ_FOREACH(port, &softc->port_list, links) { 9772 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 9773 continue; 9774 if (lun != NULL && 9775 ctl_lun_map_to_port(port, lun->lun) == UINT32_MAX) 9776 continue; 9777 num_target_ports++; 9778 if (port->init_devid) 9779 iid_len += port->init_devid->len; 9780 if (port->port_devid) 9781 id_len += port->port_devid->len; 9782 } 9783 mtx_unlock(&softc->ctl_lock); 9784 9785 data_len = sizeof(struct scsi_vpd_scsi_ports) + 9786 num_target_ports * (sizeof(struct scsi_vpd_port_designation) + 9787 sizeof(struct scsi_vpd_port_designation_cont)) + iid_len + id_len; 9788 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9789 sp = (struct scsi_vpd_scsi_ports *)ctsio->kern_data_ptr; 9790 ctsio->kern_sg_entries = 0; 9791 9792 if (data_len < alloc_len) { 9793 ctsio->residual = alloc_len - data_len; 9794 ctsio->kern_data_len = data_len; 9795 ctsio->kern_total_len = data_len; 9796 } else { 9797 ctsio->residual = 0; 9798 ctsio->kern_data_len = alloc_len; 9799 ctsio->kern_total_len = alloc_len; 9800 } 9801 ctsio->kern_data_resid = 0; 9802 ctsio->kern_rel_offset = 0; 9803 ctsio->kern_sg_entries = 0; 9804 9805 /* 9806 * The control device is always connected. The disk device, on the 9807 * other hand, may not be online all the time. Need to change this 9808 * to figure out whether the disk device is actually online or not. 9809 */ 9810 if (lun != NULL) 9811 sp->device = (SID_QUAL_LU_CONNECTED << 5) | 9812 lun->be_lun->lun_type; 9813 else 9814 sp->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9815 9816 sp->page_code = SVPD_SCSI_PORTS; 9817 scsi_ulto2b(data_len - sizeof(struct scsi_vpd_scsi_ports), 9818 sp->page_length); 9819 pd = &sp->design[0]; 9820 9821 mtx_lock(&softc->ctl_lock); 9822 STAILQ_FOREACH(port, &softc->port_list, links) { 9823 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 9824 continue; 9825 if (lun != NULL && 9826 ctl_lun_map_to_port(port, lun->lun) == UINT32_MAX) 9827 continue; 9828 scsi_ulto2b(port->targ_port, pd->relative_port_id); 9829 if (port->init_devid) { 9830 iid_len = port->init_devid->len; 9831 memcpy(pd->initiator_transportid, 9832 port->init_devid->data, port->init_devid->len); 9833 } else 9834 iid_len = 0; 9835 scsi_ulto2b(iid_len, pd->initiator_transportid_length); 9836 pdc = (struct scsi_vpd_port_designation_cont *) 9837 (&pd->initiator_transportid[iid_len]); 9838 if (port->port_devid) { 9839 id_len = port->port_devid->len; 9840 memcpy(pdc->target_port_descriptors, 9841 port->port_devid->data, port->port_devid->len); 9842 } else 9843 id_len = 0; 9844 scsi_ulto2b(id_len, pdc->target_port_descriptors_length); 9845 pd = (struct scsi_vpd_port_designation *) 9846 ((uint8_t *)pdc->target_port_descriptors + id_len); 9847 } 9848 mtx_unlock(&softc->ctl_lock); 9849 9850 ctl_set_success(ctsio); 9851 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9852 ctsio->be_move_done = ctl_config_move_done; 9853 ctl_datamove((union ctl_io *)ctsio); 9854 return (CTL_RETVAL_COMPLETE); 9855} 9856 9857static int 9858ctl_inquiry_evpd_block_limits(struct ctl_scsiio *ctsio, int alloc_len) 9859{ 9860 struct ctl_lun *lun = CTL_LUN(ctsio); 9861 struct scsi_vpd_block_limits *bl_ptr; 9862 uint64_t ival; 9863 9864 ctsio->kern_data_ptr = malloc(sizeof(*bl_ptr), M_CTL, M_WAITOK | M_ZERO); 9865 bl_ptr = (struct scsi_vpd_block_limits *)ctsio->kern_data_ptr; 9866 ctsio->kern_sg_entries = 0; 9867 9868 if (sizeof(*bl_ptr) < alloc_len) { 9869 ctsio->residual = alloc_len - sizeof(*bl_ptr); 9870 ctsio->kern_data_len = sizeof(*bl_ptr); 9871 ctsio->kern_total_len = sizeof(*bl_ptr); 9872 } else { 9873 ctsio->residual = 0; 9874 ctsio->kern_data_len = alloc_len; 9875 ctsio->kern_total_len = alloc_len; 9876 } 9877 ctsio->kern_data_resid = 0; 9878 ctsio->kern_rel_offset = 0; 9879 ctsio->kern_sg_entries = 0; 9880 9881 /* 9882 * The control device is always connected. The disk device, on the 9883 * other hand, may not be online all the time. Need to change this 9884 * to figure out whether the disk device is actually online or not. 9885 */ 9886 if (lun != NULL) 9887 bl_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9888 lun->be_lun->lun_type; 9889 else 9890 bl_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9891 9892 bl_ptr->page_code = SVPD_BLOCK_LIMITS; 9893 scsi_ulto2b(sizeof(*bl_ptr) - 4, bl_ptr->page_length); 9894 bl_ptr->max_cmp_write_len = 0xff; 9895 scsi_ulto4b(0xffffffff, bl_ptr->max_txfer_len); 9896 if (lun != NULL) { 9897 scsi_ulto4b(lun->be_lun->opttxferlen, bl_ptr->opt_txfer_len); 9898 if (lun->be_lun->flags & CTL_LUN_FLAG_UNMAP) { 9899 ival = 0xffffffff; 9900 ctl_get_opt_number(&lun->be_lun->options, 9901 "unmap_max_lba", &ival); 9902 scsi_ulto4b(ival, bl_ptr->max_unmap_lba_cnt); 9903 ival = 0xffffffff; 9904 ctl_get_opt_number(&lun->be_lun->options, 9905 "unmap_max_descr", &ival); 9906 scsi_ulto4b(ival, bl_ptr->max_unmap_blk_cnt); 9907 if (lun->be_lun->ublockexp != 0) { 9908 scsi_ulto4b((1 << lun->be_lun->ublockexp), 9909 bl_ptr->opt_unmap_grain); 9910 scsi_ulto4b(0x80000000 | lun->be_lun->ublockoff, 9911 bl_ptr->unmap_grain_align); 9912 } 9913 } 9914 scsi_ulto4b(lun->be_lun->atomicblock, 9915 bl_ptr->max_atomic_transfer_length); 9916 scsi_ulto4b(0, bl_ptr->atomic_alignment); 9917 scsi_ulto4b(0, bl_ptr->atomic_transfer_length_granularity); 9918 scsi_ulto4b(0, bl_ptr->max_atomic_transfer_length_with_atomic_boundary); 9919 scsi_ulto4b(0, bl_ptr->max_atomic_boundary_size); 9920 ival = UINT64_MAX; 9921 ctl_get_opt_number(&lun->be_lun->options, "write_same_max_lba", &ival); 9922 scsi_u64to8b(ival, bl_ptr->max_write_same_length); 9923 } 9924 9925 ctl_set_success(ctsio); 9926 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9927 ctsio->be_move_done = ctl_config_move_done; 9928 ctl_datamove((union ctl_io *)ctsio); 9929 return (CTL_RETVAL_COMPLETE); 9930} 9931 9932static int 9933ctl_inquiry_evpd_bdc(struct ctl_scsiio *ctsio, int alloc_len) 9934{ 9935 struct ctl_lun *lun = CTL_LUN(ctsio); 9936 struct scsi_vpd_block_device_characteristics *bdc_ptr; 9937 const char *value; 9938 u_int i; 9939 9940 ctsio->kern_data_ptr = malloc(sizeof(*bdc_ptr), M_CTL, M_WAITOK | M_ZERO); 9941 bdc_ptr = (struct scsi_vpd_block_device_characteristics *)ctsio->kern_data_ptr; 9942 ctsio->kern_sg_entries = 0; 9943 9944 if (sizeof(*bdc_ptr) < alloc_len) { 9945 ctsio->residual = alloc_len - sizeof(*bdc_ptr); 9946 ctsio->kern_data_len = sizeof(*bdc_ptr); 9947 ctsio->kern_total_len = sizeof(*bdc_ptr); 9948 } else { 9949 ctsio->residual = 0; 9950 ctsio->kern_data_len = alloc_len; 9951 ctsio->kern_total_len = alloc_len; 9952 } 9953 ctsio->kern_data_resid = 0; 9954 ctsio->kern_rel_offset = 0; 9955 ctsio->kern_sg_entries = 0; 9956 9957 /* 9958 * The control device is always connected. The disk device, on the 9959 * other hand, may not be online all the time. Need to change this 9960 * to figure out whether the disk device is actually online or not. 9961 */ 9962 if (lun != NULL) 9963 bdc_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9964 lun->be_lun->lun_type; 9965 else 9966 bdc_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9967 bdc_ptr->page_code = SVPD_BDC; 9968 scsi_ulto2b(sizeof(*bdc_ptr) - 4, bdc_ptr->page_length); 9969 if (lun != NULL && 9970 (value = ctl_get_opt(&lun->be_lun->options, "rpm")) != NULL) 9971 i = strtol(value, NULL, 0); 9972 else 9973 i = CTL_DEFAULT_ROTATION_RATE; 9974 scsi_ulto2b(i, bdc_ptr->medium_rotation_rate); 9975 if (lun != NULL && 9976 (value = ctl_get_opt(&lun->be_lun->options, "formfactor")) != NULL) 9977 i = strtol(value, NULL, 0); 9978 else 9979 i = 0; 9980 bdc_ptr->wab_wac_ff = (i & 0x0f); 9981 bdc_ptr->flags = SVPD_FUAB | SVPD_VBULS; 9982 9983 ctl_set_success(ctsio); 9984 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9985 ctsio->be_move_done = ctl_config_move_done; 9986 ctl_datamove((union ctl_io *)ctsio); 9987 return (CTL_RETVAL_COMPLETE); 9988} 9989 9990static int 9991ctl_inquiry_evpd_lbp(struct ctl_scsiio *ctsio, int alloc_len) 9992{ 9993 struct ctl_lun *lun = CTL_LUN(ctsio); 9994 struct scsi_vpd_logical_block_prov *lbp_ptr; 9995 const char *value; 9996 9997 ctsio->kern_data_ptr = malloc(sizeof(*lbp_ptr), M_CTL, M_WAITOK | M_ZERO); 9998 lbp_ptr = (struct scsi_vpd_logical_block_prov *)ctsio->kern_data_ptr; 9999 ctsio->kern_sg_entries = 0; 10000 10001 if (sizeof(*lbp_ptr) < alloc_len) { 10002 ctsio->residual = alloc_len - sizeof(*lbp_ptr); 10003 ctsio->kern_data_len = sizeof(*lbp_ptr); 10004 ctsio->kern_total_len = sizeof(*lbp_ptr); 10005 } else { 10006 ctsio->residual = 0; 10007 ctsio->kern_data_len = alloc_len; 10008 ctsio->kern_total_len = alloc_len; 10009 } 10010 ctsio->kern_data_resid = 0; 10011 ctsio->kern_rel_offset = 0; 10012 ctsio->kern_sg_entries = 0; 10013 10014 /* 10015 * The control device is always connected. The disk device, on the 10016 * other hand, may not be online all the time. Need to change this 10017 * to figure out whether the disk device is actually online or not. 10018 */ 10019 if (lun != NULL) 10020 lbp_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10021 lun->be_lun->lun_type; 10022 else 10023 lbp_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10024 10025 lbp_ptr->page_code = SVPD_LBP; 10026 scsi_ulto2b(sizeof(*lbp_ptr) - 4, lbp_ptr->page_length); 10027 lbp_ptr->threshold_exponent = CTL_LBP_EXPONENT; 10028 if (lun != NULL && lun->be_lun->flags & CTL_LUN_FLAG_UNMAP) { 10029 lbp_ptr->flags = SVPD_LBP_UNMAP | SVPD_LBP_WS16 | 10030 SVPD_LBP_WS10 | SVPD_LBP_RZ | SVPD_LBP_ANC_SUP; 10031 value = ctl_get_opt(&lun->be_lun->options, "provisioning_type"); 10032 if (value != NULL) { 10033 if (strcmp(value, "resource") == 0) 10034 lbp_ptr->prov_type = SVPD_LBP_RESOURCE; 10035 else if (strcmp(value, "thin") == 0) 10036 lbp_ptr->prov_type = SVPD_LBP_THIN; 10037 } else 10038 lbp_ptr->prov_type = SVPD_LBP_THIN; 10039 } 10040 10041 ctl_set_success(ctsio); 10042 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10043 ctsio->be_move_done = ctl_config_move_done; 10044 ctl_datamove((union ctl_io *)ctsio); 10045 return (CTL_RETVAL_COMPLETE); 10046} 10047 10048/* 10049 * INQUIRY with the EVPD bit set. 10050 */ 10051static int 10052ctl_inquiry_evpd(struct ctl_scsiio *ctsio) 10053{ 10054 struct ctl_lun *lun = CTL_LUN(ctsio); 10055 struct scsi_inquiry *cdb; 10056 int alloc_len, retval; 10057 10058 cdb = (struct scsi_inquiry *)ctsio->cdb; 10059 alloc_len = scsi_2btoul(cdb->length); 10060 10061 switch (cdb->page_code) { 10062 case SVPD_SUPPORTED_PAGES: 10063 retval = ctl_inquiry_evpd_supported(ctsio, alloc_len); 10064 break; 10065 case SVPD_UNIT_SERIAL_NUMBER: 10066 retval = ctl_inquiry_evpd_serial(ctsio, alloc_len); 10067 break; 10068 case SVPD_DEVICE_ID: 10069 retval = ctl_inquiry_evpd_devid(ctsio, alloc_len); 10070 break; 10071 case SVPD_EXTENDED_INQUIRY_DATA: 10072 retval = ctl_inquiry_evpd_eid(ctsio, alloc_len); 10073 break; 10074 case SVPD_MODE_PAGE_POLICY: 10075 retval = ctl_inquiry_evpd_mpp(ctsio, alloc_len); 10076 break; 10077 case SVPD_SCSI_PORTS: 10078 retval = ctl_inquiry_evpd_scsi_ports(ctsio, alloc_len); 10079 break; 10080 case SVPD_SCSI_TPC: 10081 retval = ctl_inquiry_evpd_tpc(ctsio, alloc_len); 10082 break; 10083 case SVPD_BLOCK_LIMITS: 10084 if (lun == NULL || lun->be_lun->lun_type != T_DIRECT) 10085 goto err; 10086 retval = ctl_inquiry_evpd_block_limits(ctsio, alloc_len); 10087 break; 10088 case SVPD_BDC: 10089 if (lun == NULL || lun->be_lun->lun_type != T_DIRECT) 10090 goto err; 10091 retval = ctl_inquiry_evpd_bdc(ctsio, alloc_len); 10092 break; 10093 case SVPD_LBP: 10094 if (lun == NULL || lun->be_lun->lun_type != T_DIRECT) 10095 goto err; 10096 retval = ctl_inquiry_evpd_lbp(ctsio, alloc_len); 10097 break; 10098 default: 10099err: 10100 ctl_set_invalid_field(ctsio, 10101 /*sks_valid*/ 1, 10102 /*command*/ 1, 10103 /*field*/ 2, 10104 /*bit_valid*/ 0, 10105 /*bit*/ 0); 10106 ctl_done((union ctl_io *)ctsio); 10107 retval = CTL_RETVAL_COMPLETE; 10108 break; 10109 } 10110 10111 return (retval); 10112} 10113 10114/* 10115 * Standard INQUIRY data. 10116 */ 10117static int 10118ctl_inquiry_std(struct ctl_scsiio *ctsio) 10119{ 10120 struct ctl_softc *softc = CTL_SOFTC(ctsio); 10121 struct ctl_port *port = CTL_PORT(ctsio); 10122 struct ctl_lun *lun = CTL_LUN(ctsio); 10123 struct scsi_inquiry_data *inq_ptr; 10124 struct scsi_inquiry *cdb; 10125 char *val; 10126 uint32_t alloc_len, data_len; 10127 ctl_port_type port_type; 10128 10129 port_type = port->port_type; 10130 if (port_type == CTL_PORT_IOCTL || port_type == CTL_PORT_INTERNAL) 10131 port_type = CTL_PORT_SCSI; 10132 10133 cdb = (struct scsi_inquiry *)ctsio->cdb; 10134 alloc_len = scsi_2btoul(cdb->length); 10135 10136 /* 10137 * We malloc the full inquiry data size here and fill it 10138 * in. If the user only asks for less, we'll give him 10139 * that much. 10140 */ 10141 data_len = offsetof(struct scsi_inquiry_data, vendor_specific1); 10142 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 10143 inq_ptr = (struct scsi_inquiry_data *)ctsio->kern_data_ptr; 10144 ctsio->kern_sg_entries = 0; 10145 ctsio->kern_data_resid = 0; 10146 ctsio->kern_rel_offset = 0; 10147 10148 if (data_len < alloc_len) { 10149 ctsio->residual = alloc_len - data_len; 10150 ctsio->kern_data_len = data_len; 10151 ctsio->kern_total_len = data_len; 10152 } else { 10153 ctsio->residual = 0; 10154 ctsio->kern_data_len = alloc_len; 10155 ctsio->kern_total_len = alloc_len; 10156 } 10157 10158 if (lun != NULL) { 10159 if ((lun->flags & CTL_LUN_PRIMARY_SC) || 10160 softc->ha_link >= CTL_HA_LINK_UNKNOWN) { 10161 inq_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10162 lun->be_lun->lun_type; 10163 } else { 10164 inq_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | 10165 lun->be_lun->lun_type; 10166 } 10167 if (lun->flags & CTL_LUN_REMOVABLE) 10168 inq_ptr->dev_qual2 |= SID_RMB; 10169 } else 10170 inq_ptr->device = (SID_QUAL_BAD_LU << 5) | T_NODEVICE; 10171 10172 /* RMB in byte 2 is 0 */ 10173 inq_ptr->version = SCSI_REV_SPC5; 10174 10175 /* 10176 * According to SAM-3, even if a device only supports a single 10177 * level of LUN addressing, it should still set the HISUP bit: 10178 * 10179 * 4.9.1 Logical unit numbers overview 10180 * 10181 * All logical unit number formats described in this standard are 10182 * hierarchical in structure even when only a single level in that 10183 * hierarchy is used. The HISUP bit shall be set to one in the 10184 * standard INQUIRY data (see SPC-2) when any logical unit number 10185 * format described in this standard is used. Non-hierarchical 10186 * formats are outside the scope of this standard. 10187 * 10188 * Therefore we set the HiSup bit here. 10189 * 10190 * The response format is 2, per SPC-3. 10191 */ 10192 inq_ptr->response_format = SID_HiSup | 2; 10193 10194 inq_ptr->additional_length = data_len - 10195 (offsetof(struct scsi_inquiry_data, additional_length) + 1); 10196 CTL_DEBUG_PRINT(("additional_length = %d\n", 10197 inq_ptr->additional_length)); 10198 10199 inq_ptr->spc3_flags = SPC3_SID_3PC | SPC3_SID_TPGS_IMPLICIT; 10200 if (port_type == CTL_PORT_SCSI) 10201 inq_ptr->spc2_flags = SPC2_SID_ADDR16; 10202 inq_ptr->spc2_flags |= SPC2_SID_MultiP; 10203 inq_ptr->flags = SID_CmdQue; 10204 if (port_type == CTL_PORT_SCSI) 10205 inq_ptr->flags |= SID_WBus16 | SID_Sync; 10206 10207 /* 10208 * Per SPC-3, unused bytes in ASCII strings are filled with spaces. 10209 * We have 8 bytes for the vendor name, and 16 bytes for the device 10210 * name and 4 bytes for the revision. 10211 */ 10212 if (lun == NULL || (val = ctl_get_opt(&lun->be_lun->options, 10213 "vendor")) == NULL) { 10214 strncpy(inq_ptr->vendor, CTL_VENDOR, sizeof(inq_ptr->vendor)); 10215 } else { 10216 memset(inq_ptr->vendor, ' ', sizeof(inq_ptr->vendor)); 10217 strncpy(inq_ptr->vendor, val, 10218 min(sizeof(inq_ptr->vendor), strlen(val))); 10219 } 10220 if (lun == NULL) { 10221 strncpy(inq_ptr->product, CTL_DIRECT_PRODUCT, 10222 sizeof(inq_ptr->product)); 10223 } else if ((val = ctl_get_opt(&lun->be_lun->options, "product")) == NULL) { 10224 switch (lun->be_lun->lun_type) { 10225 case T_DIRECT: 10226 strncpy(inq_ptr->product, CTL_DIRECT_PRODUCT, 10227 sizeof(inq_ptr->product)); 10228 break; 10229 case T_PROCESSOR: 10230 strncpy(inq_ptr->product, CTL_PROCESSOR_PRODUCT, 10231 sizeof(inq_ptr->product)); 10232 break; 10233 case T_CDROM: 10234 strncpy(inq_ptr->product, CTL_CDROM_PRODUCT, 10235 sizeof(inq_ptr->product)); 10236 break; 10237 default: 10238 strncpy(inq_ptr->product, CTL_UNKNOWN_PRODUCT, 10239 sizeof(inq_ptr->product)); 10240 break; 10241 } 10242 } else { 10243 memset(inq_ptr->product, ' ', sizeof(inq_ptr->product)); 10244 strncpy(inq_ptr->product, val, 10245 min(sizeof(inq_ptr->product), strlen(val))); 10246 } 10247 10248 /* 10249 * XXX make this a macro somewhere so it automatically gets 10250 * incremented when we make changes. 10251 */ 10252 if (lun == NULL || (val = ctl_get_opt(&lun->be_lun->options, 10253 "revision")) == NULL) { 10254 strncpy(inq_ptr->revision, "0001", sizeof(inq_ptr->revision)); 10255 } else { 10256 memset(inq_ptr->revision, ' ', sizeof(inq_ptr->revision)); 10257 strncpy(inq_ptr->revision, val, 10258 min(sizeof(inq_ptr->revision), strlen(val))); 10259 } 10260 10261 /* 10262 * For parallel SCSI, we support double transition and single 10263 * transition clocking. We also support QAS (Quick Arbitration 10264 * and Selection) and Information Unit transfers on both the 10265 * control and array devices. 10266 */ 10267 if (port_type == CTL_PORT_SCSI) 10268 inq_ptr->spi3data = SID_SPI_CLOCK_DT_ST | SID_SPI_QAS | 10269 SID_SPI_IUS; 10270 10271 /* SAM-6 (no version claimed) */ 10272 scsi_ulto2b(0x00C0, inq_ptr->version1); 10273 /* SPC-5 (no version claimed) */ 10274 scsi_ulto2b(0x05C0, inq_ptr->version2); 10275 if (port_type == CTL_PORT_FC) { 10276 /* FCP-2 ANSI INCITS.350:2003 */ 10277 scsi_ulto2b(0x0917, inq_ptr->version3); 10278 } else if (port_type == CTL_PORT_SCSI) { 10279 /* SPI-4 ANSI INCITS.362:200x */ 10280 scsi_ulto2b(0x0B56, inq_ptr->version3); 10281 } else if (port_type == CTL_PORT_ISCSI) { 10282 /* iSCSI (no version claimed) */ 10283 scsi_ulto2b(0x0960, inq_ptr->version3); 10284 } else if (port_type == CTL_PORT_SAS) { 10285 /* SAS (no version claimed) */ 10286 scsi_ulto2b(0x0BE0, inq_ptr->version3); 10287 } 10288 10289 if (lun == NULL) { 10290 /* SBC-4 (no version claimed) */ 10291 scsi_ulto2b(0x0600, inq_ptr->version4); 10292 } else { 10293 switch (lun->be_lun->lun_type) { 10294 case T_DIRECT: 10295 /* SBC-4 (no version claimed) */ 10296 scsi_ulto2b(0x0600, inq_ptr->version4); 10297 break; 10298 case T_PROCESSOR: 10299 break; 10300 case T_CDROM: 10301 /* MMC-6 (no version claimed) */ 10302 scsi_ulto2b(0x04E0, inq_ptr->version4); 10303 break; 10304 default: 10305 break; 10306 } 10307 } 10308 10309 ctl_set_success(ctsio); 10310 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10311 ctsio->be_move_done = ctl_config_move_done; 10312 ctl_datamove((union ctl_io *)ctsio); 10313 return (CTL_RETVAL_COMPLETE); 10314} 10315 10316int 10317ctl_inquiry(struct ctl_scsiio *ctsio) 10318{ 10319 struct scsi_inquiry *cdb; 10320 int retval; 10321 10322 CTL_DEBUG_PRINT(("ctl_inquiry\n")); 10323 10324 cdb = (struct scsi_inquiry *)ctsio->cdb; 10325 if (cdb->byte2 & SI_EVPD) 10326 retval = ctl_inquiry_evpd(ctsio); 10327 else if (cdb->page_code == 0) 10328 retval = ctl_inquiry_std(ctsio); 10329 else { 10330 ctl_set_invalid_field(ctsio, 10331 /*sks_valid*/ 1, 10332 /*command*/ 1, 10333 /*field*/ 2, 10334 /*bit_valid*/ 0, 10335 /*bit*/ 0); 10336 ctl_done((union ctl_io *)ctsio); 10337 return (CTL_RETVAL_COMPLETE); 10338 } 10339 10340 return (retval); 10341} 10342 10343int 10344ctl_get_config(struct ctl_scsiio *ctsio) 10345{ 10346 struct ctl_lun *lun = CTL_LUN(ctsio); 10347 struct scsi_get_config_header *hdr; 10348 struct scsi_get_config_feature *feature; 10349 struct scsi_get_config *cdb; 10350 uint32_t alloc_len, data_len; 10351 int rt, starting; 10352 10353 cdb = (struct scsi_get_config *)ctsio->cdb; 10354 rt = (cdb->rt & SGC_RT_MASK); 10355 starting = scsi_2btoul(cdb->starting_feature); 10356 alloc_len = scsi_2btoul(cdb->length); 10357 10358 data_len = sizeof(struct scsi_get_config_header) + 10359 sizeof(struct scsi_get_config_feature) + 8 + 10360 sizeof(struct scsi_get_config_feature) + 8 + 10361 sizeof(struct scsi_get_config_feature) + 4 + 10362 sizeof(struct scsi_get_config_feature) + 4 + 10363 sizeof(struct scsi_get_config_feature) + 8 + 10364 sizeof(struct scsi_get_config_feature) + 10365 sizeof(struct scsi_get_config_feature) + 4 + 10366 sizeof(struct scsi_get_config_feature) + 4 + 10367 sizeof(struct scsi_get_config_feature) + 4 + 10368 sizeof(struct scsi_get_config_feature) + 4 + 10369 sizeof(struct scsi_get_config_feature) + 4 + 10370 sizeof(struct scsi_get_config_feature) + 4; 10371 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 10372 ctsio->kern_sg_entries = 0; 10373 ctsio->kern_data_resid = 0; 10374 ctsio->kern_rel_offset = 0; 10375 10376 hdr = (struct scsi_get_config_header *)ctsio->kern_data_ptr; 10377 if (lun->flags & CTL_LUN_NO_MEDIA) 10378 scsi_ulto2b(0x0000, hdr->current_profile); 10379 else 10380 scsi_ulto2b(0x0010, hdr->current_profile); 10381 feature = (struct scsi_get_config_feature *)(hdr + 1); 10382 10383 if (starting > 0x003b) 10384 goto done; 10385 if (starting > 0x003a) 10386 goto f3b; 10387 if (starting > 0x002b) 10388 goto f3a; 10389 if (starting > 0x002a) 10390 goto f2b; 10391 if (starting > 0x001f) 10392 goto f2a; 10393 if (starting > 0x001e) 10394 goto f1f; 10395 if (starting > 0x001d) 10396 goto f1e; 10397 if (starting > 0x0010) 10398 goto f1d; 10399 if (starting > 0x0003) 10400 goto f10; 10401 if (starting > 0x0002) 10402 goto f3; 10403 if (starting > 0x0001) 10404 goto f2; 10405 if (starting > 0x0000) 10406 goto f1; 10407 10408 /* Profile List */ 10409 scsi_ulto2b(0x0000, feature->feature_code); 10410 feature->flags = SGC_F_PERSISTENT | SGC_F_CURRENT; 10411 feature->add_length = 8; 10412 scsi_ulto2b(0x0008, &feature->feature_data[0]); /* CD-ROM */ 10413 feature->feature_data[2] = 0x00; 10414 scsi_ulto2b(0x0010, &feature->feature_data[4]); /* DVD-ROM */ 10415 feature->feature_data[6] = 0x01; 10416 feature = (struct scsi_get_config_feature *) 10417 &feature->feature_data[feature->add_length]; 10418 10419f1: /* Core */ 10420 scsi_ulto2b(0x0001, feature->feature_code); 10421 feature->flags = 0x08 | SGC_F_PERSISTENT | SGC_F_CURRENT; 10422 feature->add_length = 8; 10423 scsi_ulto4b(0x00000000, &feature->feature_data[0]); 10424 feature->feature_data[4] = 0x03; 10425 feature = (struct scsi_get_config_feature *) 10426 &feature->feature_data[feature->add_length]; 10427 10428f2: /* Morphing */ 10429 scsi_ulto2b(0x0002, feature->feature_code); 10430 feature->flags = 0x04 | SGC_F_PERSISTENT | SGC_F_CURRENT; 10431 feature->add_length = 4; 10432 feature->feature_data[0] = 0x02; 10433 feature = (struct scsi_get_config_feature *) 10434 &feature->feature_data[feature->add_length]; 10435 10436f3: /* Removable Medium */ 10437 scsi_ulto2b(0x0003, feature->feature_code); 10438 feature->flags = 0x04 | SGC_F_PERSISTENT | SGC_F_CURRENT; 10439 feature->add_length = 4; 10440 feature->feature_data[0] = 0x39; 10441 feature = (struct scsi_get_config_feature *) 10442 &feature->feature_data[feature->add_length]; 10443 10444 if (rt == SGC_RT_CURRENT && (lun->flags & CTL_LUN_NO_MEDIA)) 10445 goto done; 10446 10447f10: /* Random Read */ 10448 scsi_ulto2b(0x0010, 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 = 8; 10453 scsi_ulto4b(lun->be_lun->blocksize, &feature->feature_data[0]); 10454 scsi_ulto2b(1, &feature->feature_data[4]); 10455 feature->feature_data[6] = 0x00; 10456 feature = (struct scsi_get_config_feature *) 10457 &feature->feature_data[feature->add_length]; 10458 10459f1d: /* Multi-Read */ 10460 scsi_ulto2b(0x001D, feature->feature_code); 10461 feature->flags = 0x00; 10462 if ((lun->flags & CTL_LUN_NO_MEDIA) == 0) 10463 feature->flags |= SGC_F_CURRENT; 10464 feature->add_length = 0; 10465 feature = (struct scsi_get_config_feature *) 10466 &feature->feature_data[feature->add_length]; 10467 10468f1e: /* CD Read */ 10469 scsi_ulto2b(0x001E, feature->feature_code); 10470 feature->flags = 0x00; 10471 if ((lun->flags & CTL_LUN_NO_MEDIA) == 0) 10472 feature->flags |= SGC_F_CURRENT; 10473 feature->add_length = 4; 10474 feature->feature_data[0] = 0x00; 10475 feature = (struct scsi_get_config_feature *) 10476 &feature->feature_data[feature->add_length]; 10477 10478f1f: /* DVD Read */ 10479 scsi_ulto2b(0x001F, feature->feature_code); 10480 feature->flags = 0x08; 10481 if ((lun->flags & CTL_LUN_NO_MEDIA) == 0) 10482 feature->flags |= SGC_F_CURRENT; 10483 feature->add_length = 4; 10484 feature->feature_data[0] = 0x01; 10485 feature->feature_data[2] = 0x03; 10486 feature = (struct scsi_get_config_feature *) 10487 &feature->feature_data[feature->add_length]; 10488 10489f2a: /* DVD+RW */ 10490 scsi_ulto2b(0x002A, feature->feature_code); 10491 feature->flags = 0x04; 10492 if ((lun->flags & CTL_LUN_NO_MEDIA) == 0) 10493 feature->flags |= SGC_F_CURRENT; 10494 feature->add_length = 4; 10495 feature->feature_data[0] = 0x00; 10496 feature->feature_data[1] = 0x00; 10497 feature = (struct scsi_get_config_feature *) 10498 &feature->feature_data[feature->add_length]; 10499 10500f2b: /* DVD+R */ 10501 scsi_ulto2b(0x002B, feature->feature_code); 10502 feature->flags = 0x00; 10503 if ((lun->flags & CTL_LUN_NO_MEDIA) == 0) 10504 feature->flags |= SGC_F_CURRENT; 10505 feature->add_length = 4; 10506 feature->feature_data[0] = 0x00; 10507 feature = (struct scsi_get_config_feature *) 10508 &feature->feature_data[feature->add_length]; 10509 10510f3a: /* DVD+RW Dual Layer */ 10511 scsi_ulto2b(0x003A, feature->feature_code); 10512 feature->flags = 0x00; 10513 if ((lun->flags & CTL_LUN_NO_MEDIA) == 0) 10514 feature->flags |= SGC_F_CURRENT; 10515 feature->add_length = 4; 10516 feature->feature_data[0] = 0x00; 10517 feature->feature_data[1] = 0x00; 10518 feature = (struct scsi_get_config_feature *) 10519 &feature->feature_data[feature->add_length]; 10520 10521f3b: /* DVD+R Dual Layer */ 10522 scsi_ulto2b(0x003B, feature->feature_code); 10523 feature->flags = 0x00; 10524 if ((lun->flags & CTL_LUN_NO_MEDIA) == 0) 10525 feature->flags |= SGC_F_CURRENT; 10526 feature->add_length = 4; 10527 feature->feature_data[0] = 0x00; 10528 feature = (struct scsi_get_config_feature *) 10529 &feature->feature_data[feature->add_length]; 10530 10531done: 10532 data_len = (uint8_t *)feature - (uint8_t *)hdr; 10533 if (rt == SGC_RT_SPECIFIC && data_len > 4) { 10534 feature = (struct scsi_get_config_feature *)(hdr + 1); 10535 if (scsi_2btoul(feature->feature_code) == starting) 10536 feature = (struct scsi_get_config_feature *) 10537 &feature->feature_data[feature->add_length]; 10538 data_len = (uint8_t *)feature - (uint8_t *)hdr; 10539 } 10540 scsi_ulto4b(data_len - 4, hdr->data_length); 10541 if (data_len < alloc_len) { 10542 ctsio->residual = alloc_len - data_len; 10543 ctsio->kern_data_len = data_len; 10544 ctsio->kern_total_len = data_len; 10545 } else { 10546 ctsio->residual = 0; 10547 ctsio->kern_data_len = alloc_len; 10548 ctsio->kern_total_len = alloc_len; 10549 } 10550 10551 ctl_set_success(ctsio); 10552 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10553 ctsio->be_move_done = ctl_config_move_done; 10554 ctl_datamove((union ctl_io *)ctsio); 10555 return (CTL_RETVAL_COMPLETE); 10556} 10557 10558int 10559ctl_get_event_status(struct ctl_scsiio *ctsio) 10560{ 10561 struct scsi_get_event_status_header *hdr; 10562 struct scsi_get_event_status *cdb; 10563 uint32_t alloc_len, data_len; 10564 int notif_class; 10565 10566 cdb = (struct scsi_get_event_status *)ctsio->cdb; 10567 if ((cdb->byte2 & SGESN_POLLED) == 0) { 10568 ctl_set_invalid_field(ctsio, /*sks_valid*/ 1, /*command*/ 1, 10569 /*field*/ 1, /*bit_valid*/ 1, /*bit*/ 0); 10570 ctl_done((union ctl_io *)ctsio); 10571 return (CTL_RETVAL_COMPLETE); 10572 } 10573 notif_class = cdb->notif_class; 10574 alloc_len = scsi_2btoul(cdb->length); 10575 10576 data_len = sizeof(struct scsi_get_event_status_header); 10577 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 10578 ctsio->kern_sg_entries = 0; 10579 ctsio->kern_data_resid = 0; 10580 ctsio->kern_rel_offset = 0; 10581 10582 if (data_len < alloc_len) { 10583 ctsio->residual = alloc_len - data_len; 10584 ctsio->kern_data_len = data_len; 10585 ctsio->kern_total_len = data_len; 10586 } else { 10587 ctsio->residual = 0; 10588 ctsio->kern_data_len = alloc_len; 10589 ctsio->kern_total_len = alloc_len; 10590 } 10591 10592 hdr = (struct scsi_get_event_status_header *)ctsio->kern_data_ptr; 10593 scsi_ulto2b(0, hdr->descr_length); 10594 hdr->nea_class = SGESN_NEA; 10595 hdr->supported_class = 0; 10596 10597 ctl_set_success(ctsio); 10598 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10599 ctsio->be_move_done = ctl_config_move_done; 10600 ctl_datamove((union ctl_io *)ctsio); 10601 return (CTL_RETVAL_COMPLETE); 10602} 10603 10604int 10605ctl_mechanism_status(struct ctl_scsiio *ctsio) 10606{ 10607 struct scsi_mechanism_status_header *hdr; 10608 struct scsi_mechanism_status *cdb; 10609 uint32_t alloc_len, data_len; 10610 10611 cdb = (struct scsi_mechanism_status *)ctsio->cdb; 10612 alloc_len = scsi_2btoul(cdb->length); 10613 10614 data_len = sizeof(struct scsi_mechanism_status_header); 10615 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 10616 ctsio->kern_sg_entries = 0; 10617 ctsio->kern_data_resid = 0; 10618 ctsio->kern_rel_offset = 0; 10619 10620 if (data_len < alloc_len) { 10621 ctsio->residual = alloc_len - data_len; 10622 ctsio->kern_data_len = data_len; 10623 ctsio->kern_total_len = data_len; 10624 } else { 10625 ctsio->residual = 0; 10626 ctsio->kern_data_len = alloc_len; 10627 ctsio->kern_total_len = alloc_len; 10628 } 10629 10630 hdr = (struct scsi_mechanism_status_header *)ctsio->kern_data_ptr; 10631 hdr->state1 = 0x00; 10632 hdr->state2 = 0xe0; 10633 scsi_ulto3b(0, hdr->lba); 10634 hdr->slots_num = 0; 10635 scsi_ulto2b(0, hdr->slots_length); 10636 10637 ctl_set_success(ctsio); 10638 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10639 ctsio->be_move_done = ctl_config_move_done; 10640 ctl_datamove((union ctl_io *)ctsio); 10641 return (CTL_RETVAL_COMPLETE); 10642} 10643 10644static void 10645ctl_ultomsf(uint32_t lba, uint8_t *buf) 10646{ 10647 10648 lba += 150; 10649 buf[0] = 0; 10650 buf[1] = bin2bcd((lba / 75) / 60); 10651 buf[2] = bin2bcd((lba / 75) % 60); 10652 buf[3] = bin2bcd(lba % 75); 10653} 10654 10655int 10656ctl_read_toc(struct ctl_scsiio *ctsio) 10657{ 10658 struct ctl_lun *lun = CTL_LUN(ctsio); 10659 struct scsi_read_toc_hdr *hdr; 10660 struct scsi_read_toc_type01_descr *descr; 10661 struct scsi_read_toc *cdb; 10662 uint32_t alloc_len, data_len; 10663 int format, msf; 10664 10665 cdb = (struct scsi_read_toc *)ctsio->cdb; 10666 msf = (cdb->byte2 & CD_MSF) != 0; 10667 format = cdb->format; 10668 alloc_len = scsi_2btoul(cdb->data_len); 10669 10670 data_len = sizeof(struct scsi_read_toc_hdr); 10671 if (format == 0) 10672 data_len += 2 * sizeof(struct scsi_read_toc_type01_descr); 10673 else 10674 data_len += sizeof(struct scsi_read_toc_type01_descr); 10675 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 10676 ctsio->kern_sg_entries = 0; 10677 ctsio->kern_data_resid = 0; 10678 ctsio->kern_rel_offset = 0; 10679 10680 if (data_len < alloc_len) { 10681 ctsio->residual = alloc_len - data_len; 10682 ctsio->kern_data_len = data_len; 10683 ctsio->kern_total_len = data_len; 10684 } else { 10685 ctsio->residual = 0; 10686 ctsio->kern_data_len = alloc_len; 10687 ctsio->kern_total_len = alloc_len; 10688 } 10689 10690 hdr = (struct scsi_read_toc_hdr *)ctsio->kern_data_ptr; 10691 if (format == 0) { 10692 scsi_ulto2b(0x12, hdr->data_length); 10693 hdr->first = 1; 10694 hdr->last = 1; 10695 descr = (struct scsi_read_toc_type01_descr *)(hdr + 1); 10696 descr->addr_ctl = 0x14; 10697 descr->track_number = 1; 10698 if (msf) 10699 ctl_ultomsf(0, descr->track_start); 10700 else 10701 scsi_ulto4b(0, descr->track_start); 10702 descr++; 10703 descr->addr_ctl = 0x14; 10704 descr->track_number = 0xaa; 10705 if (msf) 10706 ctl_ultomsf(lun->be_lun->maxlba+1, descr->track_start); 10707 else 10708 scsi_ulto4b(lun->be_lun->maxlba+1, descr->track_start); 10709 } else { 10710 scsi_ulto2b(0x0a, hdr->data_length); 10711 hdr->first = 1; 10712 hdr->last = 1; 10713 descr = (struct scsi_read_toc_type01_descr *)(hdr + 1); 10714 descr->addr_ctl = 0x14; 10715 descr->track_number = 1; 10716 if (msf) 10717 ctl_ultomsf(0, descr->track_start); 10718 else 10719 scsi_ulto4b(0, descr->track_start); 10720 } 10721 10722 ctl_set_success(ctsio); 10723 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10724 ctsio->be_move_done = ctl_config_move_done; 10725 ctl_datamove((union ctl_io *)ctsio); 10726 return (CTL_RETVAL_COMPLETE); 10727} 10728 10729/* 10730 * For known CDB types, parse the LBA and length. 10731 */ 10732static int 10733ctl_get_lba_len(union ctl_io *io, uint64_t *lba, uint64_t *len) 10734{ 10735 if (io->io_hdr.io_type != CTL_IO_SCSI) 10736 return (1); 10737 10738 switch (io->scsiio.cdb[0]) { 10739 case COMPARE_AND_WRITE: { 10740 struct scsi_compare_and_write *cdb; 10741 10742 cdb = (struct scsi_compare_and_write *)io->scsiio.cdb; 10743 10744 *lba = scsi_8btou64(cdb->addr); 10745 *len = cdb->length; 10746 break; 10747 } 10748 case READ_6: 10749 case WRITE_6: { 10750 struct scsi_rw_6 *cdb; 10751 10752 cdb = (struct scsi_rw_6 *)io->scsiio.cdb; 10753 10754 *lba = scsi_3btoul(cdb->addr); 10755 /* only 5 bits are valid in the most significant address byte */ 10756 *lba &= 0x1fffff; 10757 *len = cdb->length; 10758 break; 10759 } 10760 case READ_10: 10761 case WRITE_10: { 10762 struct scsi_rw_10 *cdb; 10763 10764 cdb = (struct scsi_rw_10 *)io->scsiio.cdb; 10765 10766 *lba = scsi_4btoul(cdb->addr); 10767 *len = scsi_2btoul(cdb->length); 10768 break; 10769 } 10770 case WRITE_VERIFY_10: { 10771 struct scsi_write_verify_10 *cdb; 10772 10773 cdb = (struct scsi_write_verify_10 *)io->scsiio.cdb; 10774 10775 *lba = scsi_4btoul(cdb->addr); 10776 *len = scsi_2btoul(cdb->length); 10777 break; 10778 } 10779 case READ_12: 10780 case WRITE_12: { 10781 struct scsi_rw_12 *cdb; 10782 10783 cdb = (struct scsi_rw_12 *)io->scsiio.cdb; 10784 10785 *lba = scsi_4btoul(cdb->addr); 10786 *len = scsi_4btoul(cdb->length); 10787 break; 10788 } 10789 case WRITE_VERIFY_12: { 10790 struct scsi_write_verify_12 *cdb; 10791 10792 cdb = (struct scsi_write_verify_12 *)io->scsiio.cdb; 10793 10794 *lba = scsi_4btoul(cdb->addr); 10795 *len = scsi_4btoul(cdb->length); 10796 break; 10797 } 10798 case READ_16: 10799 case WRITE_16: { 10800 struct scsi_rw_16 *cdb; 10801 10802 cdb = (struct scsi_rw_16 *)io->scsiio.cdb; 10803 10804 *lba = scsi_8btou64(cdb->addr); 10805 *len = scsi_4btoul(cdb->length); 10806 break; 10807 } 10808 case WRITE_ATOMIC_16: { 10809 struct scsi_write_atomic_16 *cdb; 10810 10811 cdb = (struct scsi_write_atomic_16 *)io->scsiio.cdb; 10812 10813 *lba = scsi_8btou64(cdb->addr); 10814 *len = scsi_2btoul(cdb->length); 10815 break; 10816 } 10817 case WRITE_VERIFY_16: { 10818 struct scsi_write_verify_16 *cdb; 10819 10820 cdb = (struct scsi_write_verify_16 *)io->scsiio.cdb; 10821 10822 *lba = scsi_8btou64(cdb->addr); 10823 *len = scsi_4btoul(cdb->length); 10824 break; 10825 } 10826 case WRITE_SAME_10: { 10827 struct scsi_write_same_10 *cdb; 10828 10829 cdb = (struct scsi_write_same_10 *)io->scsiio.cdb; 10830 10831 *lba = scsi_4btoul(cdb->addr); 10832 *len = scsi_2btoul(cdb->length); 10833 break; 10834 } 10835 case WRITE_SAME_16: { 10836 struct scsi_write_same_16 *cdb; 10837 10838 cdb = (struct scsi_write_same_16 *)io->scsiio.cdb; 10839 10840 *lba = scsi_8btou64(cdb->addr); 10841 *len = scsi_4btoul(cdb->length); 10842 break; 10843 } 10844 case VERIFY_10: { 10845 struct scsi_verify_10 *cdb; 10846 10847 cdb = (struct scsi_verify_10 *)io->scsiio.cdb; 10848 10849 *lba = scsi_4btoul(cdb->addr); 10850 *len = scsi_2btoul(cdb->length); 10851 break; 10852 } 10853 case VERIFY_12: { 10854 struct scsi_verify_12 *cdb; 10855 10856 cdb = (struct scsi_verify_12 *)io->scsiio.cdb; 10857 10858 *lba = scsi_4btoul(cdb->addr); 10859 *len = scsi_4btoul(cdb->length); 10860 break; 10861 } 10862 case VERIFY_16: { 10863 struct scsi_verify_16 *cdb; 10864 10865 cdb = (struct scsi_verify_16 *)io->scsiio.cdb; 10866 10867 *lba = scsi_8btou64(cdb->addr); 10868 *len = scsi_4btoul(cdb->length); 10869 break; 10870 } 10871 case UNMAP: { 10872 *lba = 0; 10873 *len = UINT64_MAX; 10874 break; 10875 } 10876 case SERVICE_ACTION_IN: { /* GET LBA STATUS */ 10877 struct scsi_get_lba_status *cdb; 10878 10879 cdb = (struct scsi_get_lba_status *)io->scsiio.cdb; 10880 *lba = scsi_8btou64(cdb->addr); 10881 *len = UINT32_MAX; 10882 break; 10883 } 10884 default: 10885 return (1); 10886 break; /* NOTREACHED */ 10887 } 10888 10889 return (0); 10890} 10891 10892static ctl_action 10893ctl_extent_check_lba(uint64_t lba1, uint64_t len1, uint64_t lba2, uint64_t len2, 10894 bool seq) 10895{ 10896 uint64_t endlba1, endlba2; 10897 10898 endlba1 = lba1 + len1 - (seq ? 0 : 1); 10899 endlba2 = lba2 + len2 - 1; 10900 10901 if ((endlba1 < lba2) || (endlba2 < lba1)) 10902 return (CTL_ACTION_PASS); 10903 else 10904 return (CTL_ACTION_BLOCK); 10905} 10906 10907static int 10908ctl_extent_check_unmap(union ctl_io *io, uint64_t lba2, uint64_t len2) 10909{ 10910 struct ctl_ptr_len_flags *ptrlen; 10911 struct scsi_unmap_desc *buf, *end, *range; 10912 uint64_t lba; 10913 uint32_t len; 10914 10915 /* If not UNMAP -- go other way. */ 10916 if (io->io_hdr.io_type != CTL_IO_SCSI || 10917 io->scsiio.cdb[0] != UNMAP) 10918 return (CTL_ACTION_ERROR); 10919 10920 /* If UNMAP without data -- block and wait for data. */ 10921 ptrlen = (struct ctl_ptr_len_flags *) 10922 &io->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 10923 if ((io->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0 || 10924 ptrlen->ptr == NULL) 10925 return (CTL_ACTION_BLOCK); 10926 10927 /* UNMAP with data -- check for collision. */ 10928 buf = (struct scsi_unmap_desc *)ptrlen->ptr; 10929 end = buf + ptrlen->len / sizeof(*buf); 10930 for (range = buf; range < end; range++) { 10931 lba = scsi_8btou64(range->lba); 10932 len = scsi_4btoul(range->length); 10933 if ((lba < lba2 + len2) && (lba + len > lba2)) 10934 return (CTL_ACTION_BLOCK); 10935 } 10936 return (CTL_ACTION_PASS); 10937} 10938 10939static ctl_action 10940ctl_extent_check(union ctl_io *io1, union ctl_io *io2, bool seq) 10941{ 10942 uint64_t lba1, lba2; 10943 uint64_t len1, len2; 10944 int retval; 10945 10946 if (ctl_get_lba_len(io2, &lba2, &len2) != 0) 10947 return (CTL_ACTION_ERROR); 10948 10949 retval = ctl_extent_check_unmap(io1, lba2, len2); 10950 if (retval != CTL_ACTION_ERROR) 10951 return (retval); 10952 10953 if (ctl_get_lba_len(io1, &lba1, &len1) != 0) 10954 return (CTL_ACTION_ERROR); 10955 10956 if (io1->io_hdr.flags & CTL_FLAG_SERSEQ_DONE) 10957 seq = FALSE; 10958 return (ctl_extent_check_lba(lba1, len1, lba2, len2, seq)); 10959} 10960 10961static ctl_action 10962ctl_extent_check_seq(union ctl_io *io1, union ctl_io *io2) 10963{ 10964 uint64_t lba1, lba2; 10965 uint64_t len1, len2; 10966 10967 if (io1->io_hdr.flags & CTL_FLAG_SERSEQ_DONE) 10968 return (CTL_ACTION_PASS); 10969 if (ctl_get_lba_len(io1, &lba1, &len1) != 0) 10970 return (CTL_ACTION_ERROR); 10971 if (ctl_get_lba_len(io2, &lba2, &len2) != 0) 10972 return (CTL_ACTION_ERROR); 10973 10974 if (lba1 + len1 == lba2) 10975 return (CTL_ACTION_BLOCK); 10976 return (CTL_ACTION_PASS); 10977} 10978 10979static ctl_action 10980ctl_check_for_blockage(struct ctl_lun *lun, union ctl_io *pending_io, 10981 union ctl_io *ooa_io) 10982{ 10983 const struct ctl_cmd_entry *pending_entry, *ooa_entry; 10984 const ctl_serialize_action *serialize_row; 10985 10986 /* 10987 * The initiator attempted multiple untagged commands at the same 10988 * time. Can't do that. 10989 */ 10990 if ((pending_io->scsiio.tag_type == CTL_TAG_UNTAGGED) 10991 && (ooa_io->scsiio.tag_type == CTL_TAG_UNTAGGED) 10992 && ((pending_io->io_hdr.nexus.targ_port == 10993 ooa_io->io_hdr.nexus.targ_port) 10994 && (pending_io->io_hdr.nexus.initid == 10995 ooa_io->io_hdr.nexus.initid)) 10996 && ((ooa_io->io_hdr.flags & (CTL_FLAG_ABORT | 10997 CTL_FLAG_STATUS_SENT)) == 0)) 10998 return (CTL_ACTION_OVERLAP); 10999 11000 /* 11001 * The initiator attempted to send multiple tagged commands with 11002 * the same ID. (It's fine if different initiators have the same 11003 * tag ID.) 11004 * 11005 * Even if all of those conditions are true, we don't kill the I/O 11006 * if the command ahead of us has been aborted. We won't end up 11007 * sending it to the FETD, and it's perfectly legal to resend a 11008 * command with the same tag number as long as the previous 11009 * instance of this tag number has been aborted somehow. 11010 */ 11011 if ((pending_io->scsiio.tag_type != CTL_TAG_UNTAGGED) 11012 && (ooa_io->scsiio.tag_type != CTL_TAG_UNTAGGED) 11013 && (pending_io->scsiio.tag_num == ooa_io->scsiio.tag_num) 11014 && ((pending_io->io_hdr.nexus.targ_port == 11015 ooa_io->io_hdr.nexus.targ_port) 11016 && (pending_io->io_hdr.nexus.initid == 11017 ooa_io->io_hdr.nexus.initid)) 11018 && ((ooa_io->io_hdr.flags & (CTL_FLAG_ABORT | 11019 CTL_FLAG_STATUS_SENT)) == 0)) 11020 return (CTL_ACTION_OVERLAP_TAG); 11021 11022 /* 11023 * If we get a head of queue tag, SAM-3 says that we should 11024 * immediately execute it. 11025 * 11026 * What happens if this command would normally block for some other 11027 * reason? e.g. a request sense with a head of queue tag 11028 * immediately after a write. Normally that would block, but this 11029 * will result in its getting executed immediately... 11030 * 11031 * We currently return "pass" instead of "skip", so we'll end up 11032 * going through the rest of the queue to check for overlapped tags. 11033 * 11034 * XXX KDM check for other types of blockage first?? 11035 */ 11036 if (pending_io->scsiio.tag_type == CTL_TAG_HEAD_OF_QUEUE) 11037 return (CTL_ACTION_PASS); 11038 11039 /* 11040 * Ordered tags have to block until all items ahead of them 11041 * have completed. If we get called with an ordered tag, we always 11042 * block, if something else is ahead of us in the queue. 11043 */ 11044 if (pending_io->scsiio.tag_type == CTL_TAG_ORDERED) 11045 return (CTL_ACTION_BLOCK); 11046 11047 /* 11048 * Simple tags get blocked until all head of queue and ordered tags 11049 * ahead of them have completed. I'm lumping untagged commands in 11050 * with simple tags here. XXX KDM is that the right thing to do? 11051 */ 11052 if (((pending_io->scsiio.tag_type == CTL_TAG_UNTAGGED) 11053 || (pending_io->scsiio.tag_type == CTL_TAG_SIMPLE)) 11054 && ((ooa_io->scsiio.tag_type == CTL_TAG_HEAD_OF_QUEUE) 11055 || (ooa_io->scsiio.tag_type == CTL_TAG_ORDERED))) 11056 return (CTL_ACTION_BLOCK); 11057 11058 pending_entry = ctl_get_cmd_entry(&pending_io->scsiio, NULL); 11059 KASSERT(pending_entry->seridx < CTL_SERIDX_COUNT, 11060 ("%s: Invalid seridx %d for pending CDB %02x %02x @ %p", 11061 __func__, pending_entry->seridx, pending_io->scsiio.cdb[0], 11062 pending_io->scsiio.cdb[1], pending_io)); 11063 ooa_entry = ctl_get_cmd_entry(&ooa_io->scsiio, NULL); 11064 if (ooa_entry->seridx == CTL_SERIDX_INVLD) 11065 return (CTL_ACTION_PASS); /* Unsupported command in OOA queue */ 11066 KASSERT(ooa_entry->seridx < CTL_SERIDX_COUNT, 11067 ("%s: Invalid seridx %d for ooa CDB %02x %02x @ %p", 11068 __func__, ooa_entry->seridx, ooa_io->scsiio.cdb[0], 11069 ooa_io->scsiio.cdb[1], ooa_io)); 11070 11071 serialize_row = ctl_serialize_table[ooa_entry->seridx]; 11072 11073 switch (serialize_row[pending_entry->seridx]) { 11074 case CTL_SER_BLOCK: 11075 return (CTL_ACTION_BLOCK); 11076 case CTL_SER_EXTENT: 11077 return (ctl_extent_check(ooa_io, pending_io, 11078 (lun->be_lun && lun->be_lun->serseq == CTL_LUN_SERSEQ_ON))); 11079 case CTL_SER_EXTENTOPT: 11080 if ((lun->MODE_CTRL.queue_flags & SCP_QUEUE_ALG_MASK) != 11081 SCP_QUEUE_ALG_UNRESTRICTED) 11082 return (ctl_extent_check(ooa_io, pending_io, 11083 (lun->be_lun && 11084 lun->be_lun->serseq == CTL_LUN_SERSEQ_ON))); 11085 return (CTL_ACTION_PASS); 11086 case CTL_SER_EXTENTSEQ: 11087 if (lun->be_lun && lun->be_lun->serseq != CTL_LUN_SERSEQ_OFF) 11088 return (ctl_extent_check_seq(ooa_io, pending_io)); 11089 return (CTL_ACTION_PASS); 11090 case CTL_SER_PASS: 11091 return (CTL_ACTION_PASS); 11092 case CTL_SER_BLOCKOPT: 11093 if ((lun->MODE_CTRL.queue_flags & SCP_QUEUE_ALG_MASK) != 11094 SCP_QUEUE_ALG_UNRESTRICTED) 11095 return (CTL_ACTION_BLOCK); 11096 return (CTL_ACTION_PASS); 11097 case CTL_SER_SKIP: 11098 return (CTL_ACTION_SKIP); 11099 default: 11100 panic("%s: Invalid serialization value %d for %d => %d", 11101 __func__, serialize_row[pending_entry->seridx], 11102 pending_entry->seridx, ooa_entry->seridx); 11103 } 11104 11105 return (CTL_ACTION_ERROR); 11106} 11107 11108/* 11109 * Check for blockage or overlaps against the OOA (Order Of Arrival) queue. 11110 * Assumptions: 11111 * - pending_io is generally either incoming, or on the blocked queue 11112 * - starting I/O is the I/O we want to start the check with. 11113 */ 11114static ctl_action 11115ctl_check_ooa(struct ctl_lun *lun, union ctl_io *pending_io, 11116 union ctl_io *starting_io) 11117{ 11118 union ctl_io *ooa_io; 11119 ctl_action action; 11120 11121 mtx_assert(&lun->lun_lock, MA_OWNED); 11122 11123 /* 11124 * Run back along the OOA queue, starting with the current 11125 * blocked I/O and going through every I/O before it on the 11126 * queue. If starting_io is NULL, we'll just end up returning 11127 * CTL_ACTION_PASS. 11128 */ 11129 for (ooa_io = starting_io; ooa_io != NULL; 11130 ooa_io = (union ctl_io *)TAILQ_PREV(&ooa_io->io_hdr, ctl_ooaq, 11131 ooa_links)){ 11132 11133 /* 11134 * This routine just checks to see whether 11135 * cur_blocked is blocked by ooa_io, which is ahead 11136 * of it in the queue. It doesn't queue/dequeue 11137 * cur_blocked. 11138 */ 11139 action = ctl_check_for_blockage(lun, pending_io, ooa_io); 11140 switch (action) { 11141 case CTL_ACTION_BLOCK: 11142 case CTL_ACTION_OVERLAP: 11143 case CTL_ACTION_OVERLAP_TAG: 11144 case CTL_ACTION_SKIP: 11145 case CTL_ACTION_ERROR: 11146 return (action); 11147 break; /* NOTREACHED */ 11148 case CTL_ACTION_PASS: 11149 break; 11150 default: 11151 panic("%s: Invalid action %d\n", __func__, action); 11152 } 11153 } 11154 11155 return (CTL_ACTION_PASS); 11156} 11157 11158/* 11159 * Assumptions: 11160 * - An I/O has just completed, and has been removed from the per-LUN OOA 11161 * queue, so some items on the blocked queue may now be unblocked. 11162 */ 11163static int 11164ctl_check_blocked(struct ctl_lun *lun) 11165{ 11166 struct ctl_softc *softc = lun->ctl_softc; 11167 union ctl_io *cur_blocked, *next_blocked; 11168 11169 mtx_assert(&lun->lun_lock, MA_OWNED); 11170 11171 /* 11172 * Run forward from the head of the blocked queue, checking each 11173 * entry against the I/Os prior to it on the OOA queue to see if 11174 * there is still any blockage. 11175 * 11176 * We cannot use the TAILQ_FOREACH() macro, because it can't deal 11177 * with our removing a variable on it while it is traversing the 11178 * list. 11179 */ 11180 for (cur_blocked = (union ctl_io *)TAILQ_FIRST(&lun->blocked_queue); 11181 cur_blocked != NULL; cur_blocked = next_blocked) { 11182 union ctl_io *prev_ooa; 11183 ctl_action action; 11184 11185 next_blocked = (union ctl_io *)TAILQ_NEXT(&cur_blocked->io_hdr, 11186 blocked_links); 11187 11188 prev_ooa = (union ctl_io *)TAILQ_PREV(&cur_blocked->io_hdr, 11189 ctl_ooaq, ooa_links); 11190 11191 /* 11192 * If cur_blocked happens to be the first item in the OOA 11193 * queue now, prev_ooa will be NULL, and the action 11194 * returned will just be CTL_ACTION_PASS. 11195 */ 11196 action = ctl_check_ooa(lun, cur_blocked, prev_ooa); 11197 11198 switch (action) { 11199 case CTL_ACTION_BLOCK: 11200 /* Nothing to do here, still blocked */ 11201 break; 11202 case CTL_ACTION_OVERLAP: 11203 case CTL_ACTION_OVERLAP_TAG: 11204 /* 11205 * This shouldn't happen! In theory we've already 11206 * checked this command for overlap... 11207 */ 11208 break; 11209 case CTL_ACTION_PASS: 11210 case CTL_ACTION_SKIP: { 11211 const struct ctl_cmd_entry *entry; 11212 11213 /* 11214 * The skip case shouldn't happen, this transaction 11215 * should have never made it onto the blocked queue. 11216 */ 11217 /* 11218 * This I/O is no longer blocked, we can remove it 11219 * from the blocked queue. Since this is a TAILQ 11220 * (doubly linked list), we can do O(1) removals 11221 * from any place on the list. 11222 */ 11223 TAILQ_REMOVE(&lun->blocked_queue, &cur_blocked->io_hdr, 11224 blocked_links); 11225 cur_blocked->io_hdr.flags &= ~CTL_FLAG_BLOCKED; 11226 11227 if ((softc->ha_mode != CTL_HA_MODE_XFER) && 11228 (cur_blocked->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)){ 11229 /* 11230 * Need to send IO back to original side to 11231 * run 11232 */ 11233 union ctl_ha_msg msg_info; 11234 11235 cur_blocked->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 11236 msg_info.hdr.original_sc = 11237 cur_blocked->io_hdr.original_sc; 11238 msg_info.hdr.serializing_sc = cur_blocked; 11239 msg_info.hdr.msg_type = CTL_MSG_R2R; 11240 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 11241 sizeof(msg_info.hdr), M_NOWAIT); 11242 break; 11243 } 11244 entry = ctl_get_cmd_entry(&cur_blocked->scsiio, NULL); 11245 11246 /* 11247 * Check this I/O for LUN state changes that may 11248 * have happened while this command was blocked. 11249 * The LUN state may have been changed by a command 11250 * ahead of us in the queue, so we need to re-check 11251 * for any states that can be caused by SCSI 11252 * commands. 11253 */ 11254 if (ctl_scsiio_lun_check(lun, entry, 11255 &cur_blocked->scsiio) == 0) { 11256 cur_blocked->io_hdr.flags |= 11257 CTL_FLAG_IS_WAS_ON_RTR; 11258 ctl_enqueue_rtr(cur_blocked); 11259 } else 11260 ctl_done(cur_blocked); 11261 break; 11262 } 11263 default: 11264 /* 11265 * This probably shouldn't happen -- we shouldn't 11266 * get CTL_ACTION_ERROR, or anything else. 11267 */ 11268 break; 11269 } 11270 } 11271 11272 return (CTL_RETVAL_COMPLETE); 11273} 11274 11275/* 11276 * This routine (with one exception) checks LUN flags that can be set by 11277 * commands ahead of us in the OOA queue. These flags have to be checked 11278 * when a command initially comes in, and when we pull a command off the 11279 * blocked queue and are preparing to execute it. The reason we have to 11280 * check these flags for commands on the blocked queue is that the LUN 11281 * state may have been changed by a command ahead of us while we're on the 11282 * blocked queue. 11283 * 11284 * Ordering is somewhat important with these checks, so please pay 11285 * careful attention to the placement of any new checks. 11286 */ 11287static int 11288ctl_scsiio_lun_check(struct ctl_lun *lun, 11289 const struct ctl_cmd_entry *entry, struct ctl_scsiio *ctsio) 11290{ 11291 struct ctl_softc *softc = lun->ctl_softc; 11292 int retval; 11293 uint32_t residx; 11294 11295 retval = 0; 11296 11297 mtx_assert(&lun->lun_lock, MA_OWNED); 11298 11299 /* 11300 * If this shelf is a secondary shelf controller, we may have to 11301 * reject some commands disallowed by HA mode and link state. 11302 */ 11303 if ((lun->flags & CTL_LUN_PRIMARY_SC) == 0) { 11304 if (softc->ha_link == CTL_HA_LINK_OFFLINE && 11305 (entry->flags & CTL_CMD_FLAG_OK_ON_UNAVAIL) == 0) { 11306 ctl_set_lun_unavail(ctsio); 11307 retval = 1; 11308 goto bailout; 11309 } 11310 if ((lun->flags & CTL_LUN_PEER_SC_PRIMARY) == 0 && 11311 (entry->flags & CTL_CMD_FLAG_OK_ON_UNAVAIL) == 0) { 11312 ctl_set_lun_transit(ctsio); 11313 retval = 1; 11314 goto bailout; 11315 } 11316 if (softc->ha_mode == CTL_HA_MODE_ACT_STBY && 11317 (entry->flags & CTL_CMD_FLAG_OK_ON_STANDBY) == 0) { 11318 ctl_set_lun_standby(ctsio); 11319 retval = 1; 11320 goto bailout; 11321 } 11322 11323 /* The rest of checks are only done on executing side */ 11324 if (softc->ha_mode == CTL_HA_MODE_XFER) 11325 goto bailout; 11326 } 11327 11328 if (entry->pattern & CTL_LUN_PAT_WRITE) { 11329 if (lun->be_lun && 11330 lun->be_lun->flags & CTL_LUN_FLAG_READONLY) { 11331 ctl_set_hw_write_protected(ctsio); 11332 retval = 1; 11333 goto bailout; 11334 } 11335 if ((lun->MODE_CTRL.eca_and_aen & SCP_SWP) != 0) { 11336 ctl_set_sense(ctsio, /*current_error*/ 1, 11337 /*sense_key*/ SSD_KEY_DATA_PROTECT, 11338 /*asc*/ 0x27, /*ascq*/ 0x02, SSD_ELEM_NONE); 11339 retval = 1; 11340 goto bailout; 11341 } 11342 } 11343 11344 /* 11345 * Check for a reservation conflict. If this command isn't allowed 11346 * even on reserved LUNs, and if this initiator isn't the one who 11347 * reserved us, reject the command with a reservation conflict. 11348 */ 11349 residx = ctl_get_initindex(&ctsio->io_hdr.nexus); 11350 if ((lun->flags & CTL_LUN_RESERVED) 11351 && ((entry->flags & CTL_CMD_FLAG_ALLOW_ON_RESV) == 0)) { 11352 if (lun->res_idx != residx) { 11353 ctl_set_reservation_conflict(ctsio); 11354 retval = 1; 11355 goto bailout; 11356 } 11357 } 11358 11359 if ((lun->flags & CTL_LUN_PR_RESERVED) == 0 || 11360 (entry->flags & CTL_CMD_FLAG_ALLOW_ON_PR_RESV)) { 11361 /* No reservation or command is allowed. */; 11362 } else if ((entry->flags & CTL_CMD_FLAG_ALLOW_ON_PR_WRESV) && 11363 (lun->pr_res_type == SPR_TYPE_WR_EX || 11364 lun->pr_res_type == SPR_TYPE_WR_EX_RO || 11365 lun->pr_res_type == SPR_TYPE_WR_EX_AR)) { 11366 /* The command is allowed for Write Exclusive resv. */; 11367 } else { 11368 /* 11369 * if we aren't registered or it's a res holder type 11370 * reservation and this isn't the res holder then set a 11371 * conflict. 11372 */ 11373 if (ctl_get_prkey(lun, residx) == 0 || 11374 (residx != lun->pr_res_idx && lun->pr_res_type < 4)) { 11375 ctl_set_reservation_conflict(ctsio); 11376 retval = 1; 11377 goto bailout; 11378 } 11379 } 11380 11381 if ((entry->flags & CTL_CMD_FLAG_OK_ON_NO_MEDIA) == 0) { 11382 if (lun->flags & CTL_LUN_EJECTED) 11383 ctl_set_lun_ejected(ctsio); 11384 else if (lun->flags & CTL_LUN_NO_MEDIA) { 11385 if (lun->flags & CTL_LUN_REMOVABLE) 11386 ctl_set_lun_no_media(ctsio); 11387 else 11388 ctl_set_lun_int_reqd(ctsio); 11389 } else if (lun->flags & CTL_LUN_STOPPED) 11390 ctl_set_lun_stopped(ctsio); 11391 else 11392 goto bailout; 11393 retval = 1; 11394 goto bailout; 11395 } 11396 11397bailout: 11398 return (retval); 11399} 11400 11401static void 11402ctl_failover_io(union ctl_io *io, int have_lock) 11403{ 11404 ctl_set_busy(&io->scsiio); 11405 ctl_done(io); 11406} 11407 11408static void 11409ctl_failover_lun(union ctl_io *rio) 11410{ 11411 struct ctl_softc *softc = CTL_SOFTC(rio); 11412 struct ctl_lun *lun; 11413 struct ctl_io_hdr *io, *next_io; 11414 uint32_t targ_lun; 11415 11416 targ_lun = rio->io_hdr.nexus.targ_mapped_lun; 11417 CTL_DEBUG_PRINT(("FAILOVER for lun %ju\n", targ_lun)); 11418 11419 /* Find and lock the LUN. */ 11420 mtx_lock(&softc->ctl_lock); 11421 if (targ_lun > CTL_MAX_LUNS || 11422 (lun = softc->ctl_luns[targ_lun]) == NULL) { 11423 mtx_unlock(&softc->ctl_lock); 11424 return; 11425 } 11426 mtx_lock(&lun->lun_lock); 11427 mtx_unlock(&softc->ctl_lock); 11428 if (lun->flags & CTL_LUN_DISABLED) { 11429 mtx_unlock(&lun->lun_lock); 11430 return; 11431 } 11432 11433 if (softc->ha_mode == CTL_HA_MODE_XFER) { 11434 TAILQ_FOREACH_SAFE(io, &lun->ooa_queue, ooa_links, next_io) { 11435 /* We are master */ 11436 if (io->flags & CTL_FLAG_FROM_OTHER_SC) { 11437 if (io->flags & CTL_FLAG_IO_ACTIVE) { 11438 io->flags |= CTL_FLAG_ABORT; 11439 io->flags |= CTL_FLAG_FAILOVER; 11440 } else { /* This can be only due to DATAMOVE */ 11441 io->msg_type = CTL_MSG_DATAMOVE_DONE; 11442 io->flags &= ~CTL_FLAG_DMA_INPROG; 11443 io->flags |= CTL_FLAG_IO_ACTIVE; 11444 io->port_status = 31340; 11445 ctl_enqueue_isc((union ctl_io *)io); 11446 } 11447 } 11448 /* We are slave */ 11449 if (io->flags & CTL_FLAG_SENT_2OTHER_SC) { 11450 io->flags &= ~CTL_FLAG_SENT_2OTHER_SC; 11451 if (io->flags & CTL_FLAG_IO_ACTIVE) { 11452 io->flags |= CTL_FLAG_FAILOVER; 11453 } else { 11454 ctl_set_busy(&((union ctl_io *)io)-> 11455 scsiio); 11456 ctl_done((union ctl_io *)io); 11457 } 11458 } 11459 } 11460 } else { /* SERIALIZE modes */ 11461 TAILQ_FOREACH_SAFE(io, &lun->blocked_queue, blocked_links, 11462 next_io) { 11463 /* We are master */ 11464 if (io->flags & CTL_FLAG_FROM_OTHER_SC) { 11465 TAILQ_REMOVE(&lun->blocked_queue, io, 11466 blocked_links); 11467 io->flags &= ~CTL_FLAG_BLOCKED; 11468 TAILQ_REMOVE(&lun->ooa_queue, io, ooa_links); 11469 ctl_free_io((union ctl_io *)io); 11470 } 11471 } 11472 TAILQ_FOREACH_SAFE(io, &lun->ooa_queue, ooa_links, next_io) { 11473 /* We are master */ 11474 if (io->flags & CTL_FLAG_FROM_OTHER_SC) { 11475 TAILQ_REMOVE(&lun->ooa_queue, io, ooa_links); 11476 ctl_free_io((union ctl_io *)io); 11477 } 11478 /* We are slave */ 11479 if (io->flags & CTL_FLAG_SENT_2OTHER_SC) { 11480 io->flags &= ~CTL_FLAG_SENT_2OTHER_SC; 11481 if (!(io->flags & CTL_FLAG_IO_ACTIVE)) { 11482 ctl_set_busy(&((union ctl_io *)io)-> 11483 scsiio); 11484 ctl_done((union ctl_io *)io); 11485 } 11486 } 11487 } 11488 ctl_check_blocked(lun); 11489 } 11490 mtx_unlock(&lun->lun_lock); 11491} 11492 11493static int 11494ctl_scsiio_precheck(struct ctl_softc *softc, struct ctl_scsiio *ctsio) 11495{ 11496 struct ctl_lun *lun; 11497 const struct ctl_cmd_entry *entry; 11498 uint32_t initidx, targ_lun; 11499 int retval = 0; 11500 11501 lun = NULL; 11502 targ_lun = ctsio->io_hdr.nexus.targ_mapped_lun; 11503 if (targ_lun < CTL_MAX_LUNS) 11504 lun = softc->ctl_luns[targ_lun]; 11505 if (lun) { 11506 /* 11507 * If the LUN is invalid, pretend that it doesn't exist. 11508 * It will go away as soon as all pending I/O has been 11509 * completed. 11510 */ 11511 mtx_lock(&lun->lun_lock); 11512 if (lun->flags & CTL_LUN_DISABLED) { 11513 mtx_unlock(&lun->lun_lock); 11514 lun = NULL; 11515 } 11516 } 11517 CTL_LUN(ctsio) = lun; 11518 if (lun) { 11519 CTL_BACKEND_LUN(ctsio) = lun->be_lun; 11520 11521 /* 11522 * Every I/O goes into the OOA queue for a particular LUN, 11523 * and stays there until completion. 11524 */ 11525#ifdef CTL_TIME_IO 11526 if (TAILQ_EMPTY(&lun->ooa_queue)) 11527 lun->idle_time += getsbinuptime() - lun->last_busy; 11528#endif 11529 TAILQ_INSERT_TAIL(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 11530 } 11531 11532 /* Get command entry and return error if it is unsuppotyed. */ 11533 entry = ctl_validate_command(ctsio); 11534 if (entry == NULL) { 11535 if (lun) 11536 mtx_unlock(&lun->lun_lock); 11537 return (retval); 11538 } 11539 11540 ctsio->io_hdr.flags &= ~CTL_FLAG_DATA_MASK; 11541 ctsio->io_hdr.flags |= entry->flags & CTL_FLAG_DATA_MASK; 11542 11543 /* 11544 * Check to see whether we can send this command to LUNs that don't 11545 * exist. This should pretty much only be the case for inquiry 11546 * and request sense. Further checks, below, really require having 11547 * a LUN, so we can't really check the command anymore. Just put 11548 * it on the rtr queue. 11549 */ 11550 if (lun == NULL) { 11551 if (entry->flags & CTL_CMD_FLAG_OK_ON_NO_LUN) { 11552 ctsio->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 11553 ctl_enqueue_rtr((union ctl_io *)ctsio); 11554 return (retval); 11555 } 11556 11557 ctl_set_unsupported_lun(ctsio); 11558 ctl_done((union ctl_io *)ctsio); 11559 CTL_DEBUG_PRINT(("ctl_scsiio_precheck: bailing out due to invalid LUN\n")); 11560 return (retval); 11561 } else { 11562 /* 11563 * Make sure we support this particular command on this LUN. 11564 * e.g., we don't support writes to the control LUN. 11565 */ 11566 if (!ctl_cmd_applicable(lun->be_lun->lun_type, entry)) { 11567 mtx_unlock(&lun->lun_lock); 11568 ctl_set_invalid_opcode(ctsio); 11569 ctl_done((union ctl_io *)ctsio); 11570 return (retval); 11571 } 11572 } 11573 11574 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 11575 11576#ifdef CTL_WITH_CA 11577 /* 11578 * If we've got a request sense, it'll clear the contingent 11579 * allegiance condition. Otherwise, if we have a CA condition for 11580 * this initiator, clear it, because it sent down a command other 11581 * than request sense. 11582 */ 11583 if ((ctsio->cdb[0] != REQUEST_SENSE) 11584 && (ctl_is_set(lun->have_ca, initidx))) 11585 ctl_clear_mask(lun->have_ca, initidx); 11586#endif 11587 11588 /* 11589 * If the command has this flag set, it handles its own unit 11590 * attention reporting, we shouldn't do anything. Otherwise we 11591 * check for any pending unit attentions, and send them back to the 11592 * initiator. We only do this when a command initially comes in, 11593 * not when we pull it off the blocked queue. 11594 * 11595 * According to SAM-3, section 5.3.2, the order that things get 11596 * presented back to the host is basically unit attentions caused 11597 * by some sort of reset event, busy status, reservation conflicts 11598 * or task set full, and finally any other status. 11599 * 11600 * One issue here is that some of the unit attentions we report 11601 * don't fall into the "reset" category (e.g. "reported luns data 11602 * has changed"). So reporting it here, before the reservation 11603 * check, may be technically wrong. I guess the only thing to do 11604 * would be to check for and report the reset events here, and then 11605 * check for the other unit attention types after we check for a 11606 * reservation conflict. 11607 * 11608 * XXX KDM need to fix this 11609 */ 11610 if ((entry->flags & CTL_CMD_FLAG_NO_SENSE) == 0) { 11611 ctl_ua_type ua_type; 11612 u_int sense_len = 0; 11613 11614 ua_type = ctl_build_ua(lun, initidx, &ctsio->sense_data, 11615 &sense_len, SSD_TYPE_NONE); 11616 if (ua_type != CTL_UA_NONE) { 11617 mtx_unlock(&lun->lun_lock); 11618 ctsio->scsi_status = SCSI_STATUS_CHECK_COND; 11619 ctsio->io_hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 11620 ctsio->sense_len = sense_len; 11621 ctl_done((union ctl_io *)ctsio); 11622 return (retval); 11623 } 11624 } 11625 11626 11627 if (ctl_scsiio_lun_check(lun, entry, ctsio) != 0) { 11628 mtx_unlock(&lun->lun_lock); 11629 ctl_done((union ctl_io *)ctsio); 11630 return (retval); 11631 } 11632 11633 /* 11634 * XXX CHD this is where we want to send IO to other side if 11635 * this LUN is secondary on this SC. We will need to make a copy 11636 * of the IO and flag the IO on this side as SENT_2OTHER and the flag 11637 * the copy we send as FROM_OTHER. 11638 * We also need to stuff the address of the original IO so we can 11639 * find it easily. Something similar will need be done on the other 11640 * side so when we are done we can find the copy. 11641 */ 11642 if ((lun->flags & CTL_LUN_PRIMARY_SC) == 0 && 11643 (lun->flags & CTL_LUN_PEER_SC_PRIMARY) != 0 && 11644 (entry->flags & CTL_CMD_FLAG_RUN_HERE) == 0) { 11645 union ctl_ha_msg msg_info; 11646 int isc_retval; 11647 11648 ctsio->io_hdr.flags |= CTL_FLAG_SENT_2OTHER_SC; 11649 ctsio->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 11650 mtx_unlock(&lun->lun_lock); 11651 11652 msg_info.hdr.msg_type = CTL_MSG_SERIALIZE; 11653 msg_info.hdr.original_sc = (union ctl_io *)ctsio; 11654 msg_info.hdr.serializing_sc = NULL; 11655 msg_info.hdr.nexus = ctsio->io_hdr.nexus; 11656 msg_info.scsi.tag_num = ctsio->tag_num; 11657 msg_info.scsi.tag_type = ctsio->tag_type; 11658 msg_info.scsi.cdb_len = ctsio->cdb_len; 11659 memcpy(msg_info.scsi.cdb, ctsio->cdb, CTL_MAX_CDBLEN); 11660 11661 if ((isc_retval = ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 11662 sizeof(msg_info.scsi) - sizeof(msg_info.scsi.sense_data), 11663 M_WAITOK)) > CTL_HA_STATUS_SUCCESS) { 11664 ctl_set_busy(ctsio); 11665 ctl_done((union ctl_io *)ctsio); 11666 return (retval); 11667 } 11668 return (retval); 11669 } 11670 11671 switch (ctl_check_ooa(lun, (union ctl_io *)ctsio, 11672 (union ctl_io *)TAILQ_PREV(&ctsio->io_hdr, 11673 ctl_ooaq, ooa_links))) { 11674 case CTL_ACTION_BLOCK: 11675 ctsio->io_hdr.flags |= CTL_FLAG_BLOCKED; 11676 TAILQ_INSERT_TAIL(&lun->blocked_queue, &ctsio->io_hdr, 11677 blocked_links); 11678 mtx_unlock(&lun->lun_lock); 11679 return (retval); 11680 case CTL_ACTION_PASS: 11681 case CTL_ACTION_SKIP: 11682 ctsio->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 11683 mtx_unlock(&lun->lun_lock); 11684 ctl_enqueue_rtr((union ctl_io *)ctsio); 11685 break; 11686 case CTL_ACTION_OVERLAP: 11687 mtx_unlock(&lun->lun_lock); 11688 ctl_set_overlapped_cmd(ctsio); 11689 ctl_done((union ctl_io *)ctsio); 11690 break; 11691 case CTL_ACTION_OVERLAP_TAG: 11692 mtx_unlock(&lun->lun_lock); 11693 ctl_set_overlapped_tag(ctsio, ctsio->tag_num & 0xff); 11694 ctl_done((union ctl_io *)ctsio); 11695 break; 11696 case CTL_ACTION_ERROR: 11697 default: 11698 mtx_unlock(&lun->lun_lock); 11699 ctl_set_internal_failure(ctsio, 11700 /*sks_valid*/ 0, 11701 /*retry_count*/ 0); 11702 ctl_done((union ctl_io *)ctsio); 11703 break; 11704 } 11705 return (retval); 11706} 11707 11708const struct ctl_cmd_entry * 11709ctl_get_cmd_entry(struct ctl_scsiio *ctsio, int *sa) 11710{ 11711 const struct ctl_cmd_entry *entry; 11712 int service_action; 11713 11714 entry = &ctl_cmd_table[ctsio->cdb[0]]; 11715 if (sa) 11716 *sa = ((entry->flags & CTL_CMD_FLAG_SA5) != 0); 11717 if (entry->flags & CTL_CMD_FLAG_SA5) { 11718 service_action = ctsio->cdb[1] & SERVICE_ACTION_MASK; 11719 entry = &((const struct ctl_cmd_entry *) 11720 entry->execute)[service_action]; 11721 } 11722 return (entry); 11723} 11724 11725const struct ctl_cmd_entry * 11726ctl_validate_command(struct ctl_scsiio *ctsio) 11727{ 11728 const struct ctl_cmd_entry *entry; 11729 int i, sa; 11730 uint8_t diff; 11731 11732 entry = ctl_get_cmd_entry(ctsio, &sa); 11733 if (entry->execute == NULL) { 11734 if (sa) 11735 ctl_set_invalid_field(ctsio, 11736 /*sks_valid*/ 1, 11737 /*command*/ 1, 11738 /*field*/ 1, 11739 /*bit_valid*/ 1, 11740 /*bit*/ 4); 11741 else 11742 ctl_set_invalid_opcode(ctsio); 11743 ctl_done((union ctl_io *)ctsio); 11744 return (NULL); 11745 } 11746 KASSERT(entry->length > 0, 11747 ("Not defined length for command 0x%02x/0x%02x", 11748 ctsio->cdb[0], ctsio->cdb[1])); 11749 for (i = 1; i < entry->length; i++) { 11750 diff = ctsio->cdb[i] & ~entry->usage[i - 1]; 11751 if (diff == 0) 11752 continue; 11753 ctl_set_invalid_field(ctsio, 11754 /*sks_valid*/ 1, 11755 /*command*/ 1, 11756 /*field*/ i, 11757 /*bit_valid*/ 1, 11758 /*bit*/ fls(diff) - 1); 11759 ctl_done((union ctl_io *)ctsio); 11760 return (NULL); 11761 } 11762 return (entry); 11763} 11764 11765static int 11766ctl_cmd_applicable(uint8_t lun_type, const struct ctl_cmd_entry *entry) 11767{ 11768 11769 switch (lun_type) { 11770 case T_DIRECT: 11771 if ((entry->flags & CTL_CMD_FLAG_OK_ON_DIRECT) == 0) 11772 return (0); 11773 break; 11774 case T_PROCESSOR: 11775 if ((entry->flags & CTL_CMD_FLAG_OK_ON_PROC) == 0) 11776 return (0); 11777 break; 11778 case T_CDROM: 11779 if ((entry->flags & CTL_CMD_FLAG_OK_ON_CDROM) == 0) 11780 return (0); 11781 break; 11782 default: 11783 return (0); 11784 } 11785 return (1); 11786} 11787 11788static int 11789ctl_scsiio(struct ctl_scsiio *ctsio) 11790{ 11791 int retval; 11792 const struct ctl_cmd_entry *entry; 11793 11794 retval = CTL_RETVAL_COMPLETE; 11795 11796 CTL_DEBUG_PRINT(("ctl_scsiio cdb[0]=%02X\n", ctsio->cdb[0])); 11797 11798 entry = ctl_get_cmd_entry(ctsio, NULL); 11799 11800 /* 11801 * If this I/O has been aborted, just send it straight to 11802 * ctl_done() without executing it. 11803 */ 11804 if (ctsio->io_hdr.flags & CTL_FLAG_ABORT) { 11805 ctl_done((union ctl_io *)ctsio); 11806 goto bailout; 11807 } 11808 11809 /* 11810 * All the checks should have been handled by ctl_scsiio_precheck(). 11811 * We should be clear now to just execute the I/O. 11812 */ 11813 retval = entry->execute(ctsio); 11814 11815bailout: 11816 return (retval); 11817} 11818 11819/* 11820 * Since we only implement one target right now, a bus reset simply resets 11821 * our single target. 11822 */ 11823static int 11824ctl_bus_reset(struct ctl_softc *softc, union ctl_io *io) 11825{ 11826 return(ctl_target_reset(softc, io, CTL_UA_BUS_RESET)); 11827} 11828 11829static int 11830ctl_target_reset(struct ctl_softc *softc, union ctl_io *io, 11831 ctl_ua_type ua_type) 11832{ 11833 struct ctl_port *port = CTL_PORT(io); 11834 struct ctl_lun *lun; 11835 int retval; 11836 11837 if (!(io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)) { 11838 union ctl_ha_msg msg_info; 11839 11840 msg_info.hdr.nexus = io->io_hdr.nexus; 11841 if (ua_type==CTL_UA_TARG_RESET) 11842 msg_info.task.task_action = CTL_TASK_TARGET_RESET; 11843 else 11844 msg_info.task.task_action = CTL_TASK_BUS_RESET; 11845 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 11846 msg_info.hdr.original_sc = NULL; 11847 msg_info.hdr.serializing_sc = NULL; 11848 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 11849 sizeof(msg_info.task), M_WAITOK); 11850 } 11851 retval = 0; 11852 11853 mtx_lock(&softc->ctl_lock); 11854 STAILQ_FOREACH(lun, &softc->lun_list, links) { 11855 if (port != NULL && 11856 ctl_lun_map_to_port(port, lun->lun) == UINT32_MAX) 11857 continue; 11858 retval += ctl_do_lun_reset(lun, io, ua_type); 11859 } 11860 mtx_unlock(&softc->ctl_lock); 11861 io->taskio.task_status = CTL_TASK_FUNCTION_COMPLETE; 11862 return (retval); 11863} 11864 11865/* 11866 * The LUN should always be set. The I/O is optional, and is used to 11867 * distinguish between I/Os sent by this initiator, and by other 11868 * initiators. We set unit attention for initiators other than this one. 11869 * SAM-3 is vague on this point. It does say that a unit attention should 11870 * be established for other initiators when a LUN is reset (see section 11871 * 5.7.3), but it doesn't specifically say that the unit attention should 11872 * be established for this particular initiator when a LUN is reset. Here 11873 * is the relevant text, from SAM-3 rev 8: 11874 * 11875 * 5.7.2 When a SCSI initiator port aborts its own tasks 11876 * 11877 * When a SCSI initiator port causes its own task(s) to be aborted, no 11878 * notification that the task(s) have been aborted shall be returned to 11879 * the SCSI initiator port other than the completion response for the 11880 * command or task management function action that caused the task(s) to 11881 * be aborted and notification(s) associated with related effects of the 11882 * action (e.g., a reset unit attention condition). 11883 * 11884 * XXX KDM for now, we're setting unit attention for all initiators. 11885 */ 11886static int 11887ctl_do_lun_reset(struct ctl_lun *lun, union ctl_io *io, ctl_ua_type ua_type) 11888{ 11889 union ctl_io *xio; 11890#if 0 11891 uint32_t initidx; 11892#endif 11893 int i; 11894 11895 mtx_lock(&lun->lun_lock); 11896 /* 11897 * Run through the OOA queue and abort each I/O. 11898 */ 11899 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 11900 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 11901 xio->io_hdr.flags |= CTL_FLAG_ABORT | CTL_FLAG_ABORT_STATUS; 11902 } 11903 11904 /* 11905 * This version sets unit attention for every 11906 */ 11907#if 0 11908 initidx = ctl_get_initindex(&io->io_hdr.nexus); 11909 ctl_est_ua_all(lun, initidx, ua_type); 11910#else 11911 ctl_est_ua_all(lun, -1, ua_type); 11912#endif 11913 11914 /* 11915 * A reset (any kind, really) clears reservations established with 11916 * RESERVE/RELEASE. It does not clear reservations established 11917 * with PERSISTENT RESERVE OUT, but we don't support that at the 11918 * moment anyway. See SPC-2, section 5.6. SPC-3 doesn't address 11919 * reservations made with the RESERVE/RELEASE commands, because 11920 * those commands are obsolete in SPC-3. 11921 */ 11922 lun->flags &= ~CTL_LUN_RESERVED; 11923 11924#ifdef CTL_WITH_CA 11925 for (i = 0; i < CTL_MAX_INITIATORS; i++) 11926 ctl_clear_mask(lun->have_ca, i); 11927#endif 11928 lun->prevent_count = 0; 11929 if (lun->prevent) { 11930 for (i = 0; i < CTL_MAX_INITIATORS; i++) 11931 ctl_clear_mask(lun->prevent, i); 11932 } 11933 mtx_unlock(&lun->lun_lock); 11934 11935 return (0); 11936} 11937 11938static int 11939ctl_lun_reset(struct ctl_softc *softc, union ctl_io *io) 11940{ 11941 struct ctl_lun *lun; 11942 uint32_t targ_lun; 11943 int retval; 11944 11945 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 11946 mtx_lock(&softc->ctl_lock); 11947 if (targ_lun >= CTL_MAX_LUNS || 11948 (lun = softc->ctl_luns[targ_lun]) == NULL) { 11949 mtx_unlock(&softc->ctl_lock); 11950 io->taskio.task_status = CTL_TASK_LUN_DOES_NOT_EXIST; 11951 return (1); 11952 } 11953 retval = ctl_do_lun_reset(lun, io, CTL_UA_LUN_RESET); 11954 mtx_unlock(&softc->ctl_lock); 11955 io->taskio.task_status = CTL_TASK_FUNCTION_COMPLETE; 11956 11957 if ((io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) == 0) { 11958 union ctl_ha_msg msg_info; 11959 11960 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 11961 msg_info.hdr.nexus = io->io_hdr.nexus; 11962 msg_info.task.task_action = CTL_TASK_LUN_RESET; 11963 msg_info.hdr.original_sc = NULL; 11964 msg_info.hdr.serializing_sc = NULL; 11965 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 11966 sizeof(msg_info.task), M_WAITOK); 11967 } 11968 return (retval); 11969} 11970 11971static void 11972ctl_abort_tasks_lun(struct ctl_lun *lun, uint32_t targ_port, uint32_t init_id, 11973 int other_sc) 11974{ 11975 union ctl_io *xio; 11976 11977 mtx_assert(&lun->lun_lock, MA_OWNED); 11978 11979 /* 11980 * Run through the OOA queue and attempt to find the given I/O. 11981 * The target port, initiator ID, tag type and tag number have to 11982 * match the values that we got from the initiator. If we have an 11983 * untagged command to abort, simply abort the first untagged command 11984 * we come to. We only allow one untagged command at a time of course. 11985 */ 11986 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 11987 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 11988 11989 if ((targ_port == UINT32_MAX || 11990 targ_port == xio->io_hdr.nexus.targ_port) && 11991 (init_id == UINT32_MAX || 11992 init_id == xio->io_hdr.nexus.initid)) { 11993 if (targ_port != xio->io_hdr.nexus.targ_port || 11994 init_id != xio->io_hdr.nexus.initid) 11995 xio->io_hdr.flags |= CTL_FLAG_ABORT_STATUS; 11996 xio->io_hdr.flags |= CTL_FLAG_ABORT; 11997 if (!other_sc && !(lun->flags & CTL_LUN_PRIMARY_SC)) { 11998 union ctl_ha_msg msg_info; 11999 12000 msg_info.hdr.nexus = xio->io_hdr.nexus; 12001 msg_info.task.task_action = CTL_TASK_ABORT_TASK; 12002 msg_info.task.tag_num = xio->scsiio.tag_num; 12003 msg_info.task.tag_type = xio->scsiio.tag_type; 12004 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 12005 msg_info.hdr.original_sc = NULL; 12006 msg_info.hdr.serializing_sc = NULL; 12007 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 12008 sizeof(msg_info.task), M_NOWAIT); 12009 } 12010 } 12011 } 12012} 12013 12014static int 12015ctl_abort_task_set(union ctl_io *io) 12016{ 12017 struct ctl_softc *softc = CTL_SOFTC(io); 12018 struct ctl_lun *lun; 12019 uint32_t targ_lun; 12020 12021 /* 12022 * Look up the LUN. 12023 */ 12024 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12025 mtx_lock(&softc->ctl_lock); 12026 if (targ_lun >= CTL_MAX_LUNS || 12027 (lun = softc->ctl_luns[targ_lun]) == NULL) { 12028 mtx_unlock(&softc->ctl_lock); 12029 io->taskio.task_status = CTL_TASK_LUN_DOES_NOT_EXIST; 12030 return (1); 12031 } 12032 12033 mtx_lock(&lun->lun_lock); 12034 mtx_unlock(&softc->ctl_lock); 12035 if (io->taskio.task_action == CTL_TASK_ABORT_TASK_SET) { 12036 ctl_abort_tasks_lun(lun, io->io_hdr.nexus.targ_port, 12037 io->io_hdr.nexus.initid, 12038 (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) != 0); 12039 } else { /* CTL_TASK_CLEAR_TASK_SET */ 12040 ctl_abort_tasks_lun(lun, UINT32_MAX, UINT32_MAX, 12041 (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) != 0); 12042 } 12043 mtx_unlock(&lun->lun_lock); 12044 io->taskio.task_status = CTL_TASK_FUNCTION_COMPLETE; 12045 return (0); 12046} 12047 12048static int 12049ctl_i_t_nexus_reset(union ctl_io *io) 12050{ 12051 struct ctl_softc *softc = CTL_SOFTC(io); 12052 struct ctl_lun *lun; 12053 uint32_t initidx; 12054 12055 if (!(io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)) { 12056 union ctl_ha_msg msg_info; 12057 12058 msg_info.hdr.nexus = io->io_hdr.nexus; 12059 msg_info.task.task_action = CTL_TASK_I_T_NEXUS_RESET; 12060 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 12061 msg_info.hdr.original_sc = NULL; 12062 msg_info.hdr.serializing_sc = NULL; 12063 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 12064 sizeof(msg_info.task), M_WAITOK); 12065 } 12066 12067 initidx = ctl_get_initindex(&io->io_hdr.nexus); 12068 mtx_lock(&softc->ctl_lock); 12069 STAILQ_FOREACH(lun, &softc->lun_list, links) { 12070 mtx_lock(&lun->lun_lock); 12071 ctl_abort_tasks_lun(lun, io->io_hdr.nexus.targ_port, 12072 io->io_hdr.nexus.initid, 1); 12073#ifdef CTL_WITH_CA 12074 ctl_clear_mask(lun->have_ca, initidx); 12075#endif 12076 if ((lun->flags & CTL_LUN_RESERVED) && (lun->res_idx == initidx)) 12077 lun->flags &= ~CTL_LUN_RESERVED; 12078 if (lun->prevent && ctl_is_set(lun->prevent, initidx)) { 12079 ctl_clear_mask(lun->prevent, initidx); 12080 lun->prevent_count--; 12081 } 12082 ctl_est_ua(lun, initidx, CTL_UA_I_T_NEXUS_LOSS); 12083 mtx_unlock(&lun->lun_lock); 12084 } 12085 mtx_unlock(&softc->ctl_lock); 12086 io->taskio.task_status = CTL_TASK_FUNCTION_COMPLETE; 12087 return (0); 12088} 12089 12090static int 12091ctl_abort_task(union ctl_io *io) 12092{ 12093 struct ctl_softc *softc = CTL_SOFTC(io); 12094 union ctl_io *xio; 12095 struct ctl_lun *lun; 12096#if 0 12097 struct sbuf sb; 12098 char printbuf[128]; 12099#endif 12100 int found; 12101 uint32_t targ_lun; 12102 12103 found = 0; 12104 12105 /* 12106 * Look up the LUN. 12107 */ 12108 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12109 mtx_lock(&softc->ctl_lock); 12110 if (targ_lun >= CTL_MAX_LUNS || 12111 (lun = softc->ctl_luns[targ_lun]) == NULL) { 12112 mtx_unlock(&softc->ctl_lock); 12113 io->taskio.task_status = CTL_TASK_LUN_DOES_NOT_EXIST; 12114 return (1); 12115 } 12116 12117#if 0 12118 printf("ctl_abort_task: called for lun %lld, tag %d type %d\n", 12119 lun->lun, io->taskio.tag_num, io->taskio.tag_type); 12120#endif 12121 12122 mtx_lock(&lun->lun_lock); 12123 mtx_unlock(&softc->ctl_lock); 12124 /* 12125 * Run through the OOA queue and attempt to find the given I/O. 12126 * The target port, initiator ID, tag type and tag number have to 12127 * match the values that we got from the initiator. If we have an 12128 * untagged command to abort, simply abort the first untagged command 12129 * we come to. We only allow one untagged command at a time of course. 12130 */ 12131 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 12132 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 12133#if 0 12134 sbuf_new(&sb, printbuf, sizeof(printbuf), SBUF_FIXEDLEN); 12135 12136 sbuf_printf(&sb, "LUN %lld tag %d type %d%s%s%s%s: ", 12137 lun->lun, xio->scsiio.tag_num, 12138 xio->scsiio.tag_type, 12139 (xio->io_hdr.blocked_links.tqe_prev 12140 == NULL) ? "" : " BLOCKED", 12141 (xio->io_hdr.flags & 12142 CTL_FLAG_DMA_INPROG) ? " DMA" : "", 12143 (xio->io_hdr.flags & 12144 CTL_FLAG_ABORT) ? " ABORT" : "", 12145 (xio->io_hdr.flags & 12146 CTL_FLAG_IS_WAS_ON_RTR ? " RTR" : "")); 12147 ctl_scsi_command_string(&xio->scsiio, NULL, &sb); 12148 sbuf_finish(&sb); 12149 printf("%s\n", sbuf_data(&sb)); 12150#endif 12151 12152 if ((xio->io_hdr.nexus.targ_port != io->io_hdr.nexus.targ_port) 12153 || (xio->io_hdr.nexus.initid != io->io_hdr.nexus.initid) 12154 || (xio->io_hdr.flags & CTL_FLAG_ABORT)) 12155 continue; 12156 12157 /* 12158 * If the abort says that the task is untagged, the 12159 * task in the queue must be untagged. Otherwise, 12160 * we just check to see whether the tag numbers 12161 * match. This is because the QLogic firmware 12162 * doesn't pass back the tag type in an abort 12163 * request. 12164 */ 12165#if 0 12166 if (((xio->scsiio.tag_type == CTL_TAG_UNTAGGED) 12167 && (io->taskio.tag_type == CTL_TAG_UNTAGGED)) 12168 || (xio->scsiio.tag_num == io->taskio.tag_num)) 12169#endif 12170 /* 12171 * XXX KDM we've got problems with FC, because it 12172 * doesn't send down a tag type with aborts. So we 12173 * can only really go by the tag number... 12174 * This may cause problems with parallel SCSI. 12175 * Need to figure that out!! 12176 */ 12177 if (xio->scsiio.tag_num == io->taskio.tag_num) { 12178 xio->io_hdr.flags |= CTL_FLAG_ABORT; 12179 found = 1; 12180 if ((io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) == 0 && 12181 !(lun->flags & CTL_LUN_PRIMARY_SC)) { 12182 union ctl_ha_msg msg_info; 12183 12184 msg_info.hdr.nexus = io->io_hdr.nexus; 12185 msg_info.task.task_action = CTL_TASK_ABORT_TASK; 12186 msg_info.task.tag_num = io->taskio.tag_num; 12187 msg_info.task.tag_type = io->taskio.tag_type; 12188 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 12189 msg_info.hdr.original_sc = NULL; 12190 msg_info.hdr.serializing_sc = NULL; 12191#if 0 12192 printf("Sent Abort to other side\n"); 12193#endif 12194 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 12195 sizeof(msg_info.task), M_NOWAIT); 12196 } 12197#if 0 12198 printf("ctl_abort_task: found I/O to abort\n"); 12199#endif 12200 } 12201 } 12202 mtx_unlock(&lun->lun_lock); 12203 12204 if (found == 0) { 12205 /* 12206 * This isn't really an error. It's entirely possible for 12207 * the abort and command completion to cross on the wire. 12208 * This is more of an informative/diagnostic error. 12209 */ 12210#if 0 12211 printf("ctl_abort_task: ABORT sent for nonexistent I/O: " 12212 "%u:%u:%u tag %d type %d\n", 12213 io->io_hdr.nexus.initid, 12214 io->io_hdr.nexus.targ_port, 12215 io->io_hdr.nexus.targ_lun, io->taskio.tag_num, 12216 io->taskio.tag_type); 12217#endif 12218 } 12219 io->taskio.task_status = CTL_TASK_FUNCTION_COMPLETE; 12220 return (0); 12221} 12222 12223static int 12224ctl_query_task(union ctl_io *io, int task_set) 12225{ 12226 struct ctl_softc *softc = CTL_SOFTC(io); 12227 union ctl_io *xio; 12228 struct ctl_lun *lun; 12229 int found = 0; 12230 uint32_t targ_lun; 12231 12232 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12233 mtx_lock(&softc->ctl_lock); 12234 if (targ_lun >= CTL_MAX_LUNS || 12235 (lun = softc->ctl_luns[targ_lun]) == NULL) { 12236 mtx_unlock(&softc->ctl_lock); 12237 io->taskio.task_status = CTL_TASK_LUN_DOES_NOT_EXIST; 12238 return (1); 12239 } 12240 mtx_lock(&lun->lun_lock); 12241 mtx_unlock(&softc->ctl_lock); 12242 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 12243 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 12244 12245 if ((xio->io_hdr.nexus.targ_port != io->io_hdr.nexus.targ_port) 12246 || (xio->io_hdr.nexus.initid != io->io_hdr.nexus.initid) 12247 || (xio->io_hdr.flags & CTL_FLAG_ABORT)) 12248 continue; 12249 12250 if (task_set || xio->scsiio.tag_num == io->taskio.tag_num) { 12251 found = 1; 12252 break; 12253 } 12254 } 12255 mtx_unlock(&lun->lun_lock); 12256 if (found) 12257 io->taskio.task_status = CTL_TASK_FUNCTION_SUCCEEDED; 12258 else 12259 io->taskio.task_status = CTL_TASK_FUNCTION_COMPLETE; 12260 return (0); 12261} 12262 12263static int 12264ctl_query_async_event(union ctl_io *io) 12265{ 12266 struct ctl_softc *softc = CTL_SOFTC(io); 12267 struct ctl_lun *lun; 12268 ctl_ua_type ua; 12269 uint32_t targ_lun, initidx; 12270 12271 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12272 mtx_lock(&softc->ctl_lock); 12273 if (targ_lun >= CTL_MAX_LUNS || 12274 (lun = softc->ctl_luns[targ_lun]) == NULL) { 12275 mtx_unlock(&softc->ctl_lock); 12276 io->taskio.task_status = CTL_TASK_LUN_DOES_NOT_EXIST; 12277 return (1); 12278 } 12279 mtx_lock(&lun->lun_lock); 12280 mtx_unlock(&softc->ctl_lock); 12281 initidx = ctl_get_initindex(&io->io_hdr.nexus); 12282 ua = ctl_build_qae(lun, initidx, io->taskio.task_resp); 12283 mtx_unlock(&lun->lun_lock); 12284 if (ua != CTL_UA_NONE) 12285 io->taskio.task_status = CTL_TASK_FUNCTION_SUCCEEDED; 12286 else 12287 io->taskio.task_status = CTL_TASK_FUNCTION_COMPLETE; 12288 return (0); 12289} 12290 12291static void 12292ctl_run_task(union ctl_io *io) 12293{ 12294 struct ctl_softc *softc = CTL_SOFTC(io); 12295 int retval = 1; 12296 12297 CTL_DEBUG_PRINT(("ctl_run_task\n")); 12298 KASSERT(io->io_hdr.io_type == CTL_IO_TASK, 12299 ("ctl_run_task: Unextected io_type %d\n", io->io_hdr.io_type)); 12300 io->taskio.task_status = CTL_TASK_FUNCTION_NOT_SUPPORTED; 12301 bzero(io->taskio.task_resp, sizeof(io->taskio.task_resp)); 12302 switch (io->taskio.task_action) { 12303 case CTL_TASK_ABORT_TASK: 12304 retval = ctl_abort_task(io); 12305 break; 12306 case CTL_TASK_ABORT_TASK_SET: 12307 case CTL_TASK_CLEAR_TASK_SET: 12308 retval = ctl_abort_task_set(io); 12309 break; 12310 case CTL_TASK_CLEAR_ACA: 12311 break; 12312 case CTL_TASK_I_T_NEXUS_RESET: 12313 retval = ctl_i_t_nexus_reset(io); 12314 break; 12315 case CTL_TASK_LUN_RESET: 12316 retval = ctl_lun_reset(softc, io); 12317 break; 12318 case CTL_TASK_TARGET_RESET: 12319 retval = ctl_target_reset(softc, io, CTL_UA_TARG_RESET); 12320 break; 12321 case CTL_TASK_BUS_RESET: 12322 retval = ctl_bus_reset(softc, io); 12323 break; 12324 case CTL_TASK_PORT_LOGIN: 12325 break; 12326 case CTL_TASK_PORT_LOGOUT: 12327 break; 12328 case CTL_TASK_QUERY_TASK: 12329 retval = ctl_query_task(io, 0); 12330 break; 12331 case CTL_TASK_QUERY_TASK_SET: 12332 retval = ctl_query_task(io, 1); 12333 break; 12334 case CTL_TASK_QUERY_ASYNC_EVENT: 12335 retval = ctl_query_async_event(io); 12336 break; 12337 default: 12338 printf("%s: got unknown task management event %d\n", 12339 __func__, io->taskio.task_action); 12340 break; 12341 } 12342 if (retval == 0) 12343 io->io_hdr.status = CTL_SUCCESS; 12344 else 12345 io->io_hdr.status = CTL_ERROR; 12346 ctl_done(io); 12347} 12348 12349/* 12350 * For HA operation. Handle commands that come in from the other 12351 * controller. 12352 */ 12353static void 12354ctl_handle_isc(union ctl_io *io) 12355{ 12356 struct ctl_softc *softc = CTL_SOFTC(io); 12357 struct ctl_lun *lun; 12358 const struct ctl_cmd_entry *entry; 12359 uint32_t targ_lun; 12360 12361 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12362 switch (io->io_hdr.msg_type) { 12363 case CTL_MSG_SERIALIZE: 12364 ctl_serialize_other_sc_cmd(&io->scsiio); 12365 break; 12366 case CTL_MSG_R2R: /* Only used in SER_ONLY mode. */ 12367 entry = ctl_get_cmd_entry(&io->scsiio, NULL); 12368 if (targ_lun >= CTL_MAX_LUNS || 12369 (lun = softc->ctl_luns[targ_lun]) == NULL) { 12370 ctl_done(io); 12371 break; 12372 } 12373 mtx_lock(&lun->lun_lock); 12374 if (ctl_scsiio_lun_check(lun, entry, &io->scsiio) != 0) { 12375 mtx_unlock(&lun->lun_lock); 12376 ctl_done(io); 12377 break; 12378 } 12379 io->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 12380 mtx_unlock(&lun->lun_lock); 12381 ctl_enqueue_rtr(io); 12382 break; 12383 case CTL_MSG_FINISH_IO: 12384 if (softc->ha_mode == CTL_HA_MODE_XFER) { 12385 ctl_done(io); 12386 break; 12387 } 12388 if (targ_lun >= CTL_MAX_LUNS || 12389 (lun = softc->ctl_luns[targ_lun]) == NULL) { 12390 ctl_free_io(io); 12391 break; 12392 } 12393 mtx_lock(&lun->lun_lock); 12394 TAILQ_REMOVE(&lun->ooa_queue, &io->io_hdr, ooa_links); 12395 ctl_check_blocked(lun); 12396 mtx_unlock(&lun->lun_lock); 12397 ctl_free_io(io); 12398 break; 12399 case CTL_MSG_PERS_ACTION: 12400 ctl_hndl_per_res_out_on_other_sc(io); 12401 ctl_free_io(io); 12402 break; 12403 case CTL_MSG_BAD_JUJU: 12404 ctl_done(io); 12405 break; 12406 case CTL_MSG_DATAMOVE: /* Only used in XFER mode */ 12407 ctl_datamove_remote(io); 12408 break; 12409 case CTL_MSG_DATAMOVE_DONE: /* Only used in XFER mode */ 12410 io->scsiio.be_move_done(io); 12411 break; 12412 case CTL_MSG_FAILOVER: 12413 ctl_failover_lun(io); 12414 ctl_free_io(io); 12415 break; 12416 default: 12417 printf("%s: Invalid message type %d\n", 12418 __func__, io->io_hdr.msg_type); 12419 ctl_free_io(io); 12420 break; 12421 } 12422 12423} 12424 12425 12426/* 12427 * Returns the match type in the case of a match, or CTL_LUN_PAT_NONE if 12428 * there is no match. 12429 */ 12430static ctl_lun_error_pattern 12431ctl_cmd_pattern_match(struct ctl_scsiio *ctsio, struct ctl_error_desc *desc) 12432{ 12433 const struct ctl_cmd_entry *entry; 12434 ctl_lun_error_pattern filtered_pattern, pattern; 12435 12436 pattern = desc->error_pattern; 12437 12438 /* 12439 * XXX KDM we need more data passed into this function to match a 12440 * custom pattern, and we actually need to implement custom pattern 12441 * matching. 12442 */ 12443 if (pattern & CTL_LUN_PAT_CMD) 12444 return (CTL_LUN_PAT_CMD); 12445 12446 if ((pattern & CTL_LUN_PAT_MASK) == CTL_LUN_PAT_ANY) 12447 return (CTL_LUN_PAT_ANY); 12448 12449 entry = ctl_get_cmd_entry(ctsio, NULL); 12450 12451 filtered_pattern = entry->pattern & pattern; 12452 12453 /* 12454 * If the user requested specific flags in the pattern (e.g. 12455 * CTL_LUN_PAT_RANGE), make sure the command supports all of those 12456 * flags. 12457 * 12458 * If the user did not specify any flags, it doesn't matter whether 12459 * or not the command supports the flags. 12460 */ 12461 if ((filtered_pattern & ~CTL_LUN_PAT_MASK) != 12462 (pattern & ~CTL_LUN_PAT_MASK)) 12463 return (CTL_LUN_PAT_NONE); 12464 12465 /* 12466 * If the user asked for a range check, see if the requested LBA 12467 * range overlaps with this command's LBA range. 12468 */ 12469 if (filtered_pattern & CTL_LUN_PAT_RANGE) { 12470 uint64_t lba1; 12471 uint64_t len1; 12472 ctl_action action; 12473 int retval; 12474 12475 retval = ctl_get_lba_len((union ctl_io *)ctsio, &lba1, &len1); 12476 if (retval != 0) 12477 return (CTL_LUN_PAT_NONE); 12478 12479 action = ctl_extent_check_lba(lba1, len1, desc->lba_range.lba, 12480 desc->lba_range.len, FALSE); 12481 /* 12482 * A "pass" means that the LBA ranges don't overlap, so 12483 * this doesn't match the user's range criteria. 12484 */ 12485 if (action == CTL_ACTION_PASS) 12486 return (CTL_LUN_PAT_NONE); 12487 } 12488 12489 return (filtered_pattern); 12490} 12491 12492static void 12493ctl_inject_error(struct ctl_lun *lun, union ctl_io *io) 12494{ 12495 struct ctl_error_desc *desc, *desc2; 12496 12497 mtx_assert(&lun->lun_lock, MA_OWNED); 12498 12499 STAILQ_FOREACH_SAFE(desc, &lun->error_list, links, desc2) { 12500 ctl_lun_error_pattern pattern; 12501 /* 12502 * Check to see whether this particular command matches 12503 * the pattern in the descriptor. 12504 */ 12505 pattern = ctl_cmd_pattern_match(&io->scsiio, desc); 12506 if ((pattern & CTL_LUN_PAT_MASK) == CTL_LUN_PAT_NONE) 12507 continue; 12508 12509 switch (desc->lun_error & CTL_LUN_INJ_TYPE) { 12510 case CTL_LUN_INJ_ABORTED: 12511 ctl_set_aborted(&io->scsiio); 12512 break; 12513 case CTL_LUN_INJ_MEDIUM_ERR: 12514 ctl_set_medium_error(&io->scsiio, 12515 (io->io_hdr.flags & CTL_FLAG_DATA_MASK) != 12516 CTL_FLAG_DATA_OUT); 12517 break; 12518 case CTL_LUN_INJ_UA: 12519 /* 29h/00h POWER ON, RESET, OR BUS DEVICE RESET 12520 * OCCURRED */ 12521 ctl_set_ua(&io->scsiio, 0x29, 0x00); 12522 break; 12523 case CTL_LUN_INJ_CUSTOM: 12524 /* 12525 * We're assuming the user knows what he is doing. 12526 * Just copy the sense information without doing 12527 * checks. 12528 */ 12529 bcopy(&desc->custom_sense, &io->scsiio.sense_data, 12530 MIN(sizeof(desc->custom_sense), 12531 sizeof(io->scsiio.sense_data))); 12532 io->scsiio.scsi_status = SCSI_STATUS_CHECK_COND; 12533 io->scsiio.sense_len = SSD_FULL_SIZE; 12534 io->io_hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 12535 break; 12536 case CTL_LUN_INJ_NONE: 12537 default: 12538 /* 12539 * If this is an error injection type we don't know 12540 * about, clear the continuous flag (if it is set) 12541 * so it will get deleted below. 12542 */ 12543 desc->lun_error &= ~CTL_LUN_INJ_CONTINUOUS; 12544 break; 12545 } 12546 /* 12547 * By default, each error injection action is a one-shot 12548 */ 12549 if (desc->lun_error & CTL_LUN_INJ_CONTINUOUS) 12550 continue; 12551 12552 STAILQ_REMOVE(&lun->error_list, desc, ctl_error_desc, links); 12553 12554 free(desc, M_CTL); 12555 } 12556} 12557 12558#ifdef CTL_IO_DELAY 12559static void 12560ctl_datamove_timer_wakeup(void *arg) 12561{ 12562 union ctl_io *io; 12563 12564 io = (union ctl_io *)arg; 12565 12566 ctl_datamove(io); 12567} 12568#endif /* CTL_IO_DELAY */ 12569 12570void 12571ctl_datamove(union ctl_io *io) 12572{ 12573 void (*fe_datamove)(union ctl_io *io); 12574 12575 mtx_assert(&((struct ctl_softc *)CTL_SOFTC(io))->ctl_lock, MA_NOTOWNED); 12576 12577 CTL_DEBUG_PRINT(("ctl_datamove\n")); 12578 12579#ifdef CTL_TIME_IO 12580 if ((time_uptime - io->io_hdr.start_time) > ctl_time_io_secs) { 12581 char str[256]; 12582 char path_str[64]; 12583 struct sbuf sb; 12584 12585 ctl_scsi_path_string(io, path_str, sizeof(path_str)); 12586 sbuf_new(&sb, str, sizeof(str), SBUF_FIXEDLEN); 12587 12588 sbuf_cat(&sb, path_str); 12589 switch (io->io_hdr.io_type) { 12590 case CTL_IO_SCSI: 12591 ctl_scsi_command_string(&io->scsiio, NULL, &sb); 12592 sbuf_printf(&sb, "\n"); 12593 sbuf_cat(&sb, path_str); 12594 sbuf_printf(&sb, "Tag: 0x%04x, type %d\n", 12595 io->scsiio.tag_num, io->scsiio.tag_type); 12596 break; 12597 case CTL_IO_TASK: 12598 sbuf_printf(&sb, "Task I/O type: %d, Tag: 0x%04x, " 12599 "Tag Type: %d\n", io->taskio.task_action, 12600 io->taskio.tag_num, io->taskio.tag_type); 12601 break; 12602 default: 12603 panic("%s: Invalid CTL I/O type %d\n", 12604 __func__, io->io_hdr.io_type); 12605 } 12606 sbuf_cat(&sb, path_str); 12607 sbuf_printf(&sb, "ctl_datamove: %jd seconds\n", 12608 (intmax_t)time_uptime - io->io_hdr.start_time); 12609 sbuf_finish(&sb); 12610 printf("%s", sbuf_data(&sb)); 12611 } 12612#endif /* CTL_TIME_IO */ 12613 12614#ifdef CTL_IO_DELAY 12615 if (io->io_hdr.flags & CTL_FLAG_DELAY_DONE) { 12616 io->io_hdr.flags &= ~CTL_FLAG_DELAY_DONE; 12617 } else { 12618 if ((lun != NULL) 12619 && (lun->delay_info.datamove_delay > 0)) { 12620 12621 callout_init(&io->io_hdr.delay_callout, /*mpsafe*/ 1); 12622 io->io_hdr.flags |= CTL_FLAG_DELAY_DONE; 12623 callout_reset(&io->io_hdr.delay_callout, 12624 lun->delay_info.datamove_delay * hz, 12625 ctl_datamove_timer_wakeup, io); 12626 if (lun->delay_info.datamove_type == 12627 CTL_DELAY_TYPE_ONESHOT) 12628 lun->delay_info.datamove_delay = 0; 12629 return; 12630 } 12631 } 12632#endif 12633 12634 /* 12635 * This command has been aborted. Set the port status, so we fail 12636 * the data move. 12637 */ 12638 if (io->io_hdr.flags & CTL_FLAG_ABORT) { 12639 printf("ctl_datamove: tag 0x%04x on (%u:%u:%u) aborted\n", 12640 io->scsiio.tag_num, io->io_hdr.nexus.initid, 12641 io->io_hdr.nexus.targ_port, 12642 io->io_hdr.nexus.targ_lun); 12643 io->io_hdr.port_status = 31337; 12644 /* 12645 * Note that the backend, in this case, will get the 12646 * callback in its context. In other cases it may get 12647 * called in the frontend's interrupt thread context. 12648 */ 12649 io->scsiio.be_move_done(io); 12650 return; 12651 } 12652 12653 /* Don't confuse frontend with zero length data move. */ 12654 if (io->scsiio.kern_data_len == 0) { 12655 io->scsiio.be_move_done(io); 12656 return; 12657 } 12658 12659 fe_datamove = CTL_PORT(io)->fe_datamove; 12660 fe_datamove(io); 12661} 12662 12663static void 12664ctl_send_datamove_done(union ctl_io *io, int have_lock) 12665{ 12666 union ctl_ha_msg msg; 12667#ifdef CTL_TIME_IO 12668 struct bintime cur_bt; 12669#endif 12670 12671 memset(&msg, 0, sizeof(msg)); 12672 msg.hdr.msg_type = CTL_MSG_DATAMOVE_DONE; 12673 msg.hdr.original_sc = io; 12674 msg.hdr.serializing_sc = io->io_hdr.serializing_sc; 12675 msg.hdr.nexus = io->io_hdr.nexus; 12676 msg.hdr.status = io->io_hdr.status; 12677 msg.scsi.tag_num = io->scsiio.tag_num; 12678 msg.scsi.tag_type = io->scsiio.tag_type; 12679 msg.scsi.scsi_status = io->scsiio.scsi_status; 12680 memcpy(&msg.scsi.sense_data, &io->scsiio.sense_data, 12681 io->scsiio.sense_len); 12682 msg.scsi.sense_len = io->scsiio.sense_len; 12683 msg.scsi.sense_residual = io->scsiio.sense_residual; 12684 msg.scsi.fetd_status = io->io_hdr.port_status; 12685 msg.scsi.residual = io->scsiio.residual; 12686 io->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 12687 if (io->io_hdr.flags & CTL_FLAG_FAILOVER) { 12688 ctl_failover_io(io, /*have_lock*/ have_lock); 12689 return; 12690 } 12691 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, 12692 sizeof(msg.scsi) - sizeof(msg.scsi.sense_data) + 12693 msg.scsi.sense_len, M_WAITOK); 12694 12695#ifdef CTL_TIME_IO 12696 getbinuptime(&cur_bt); 12697 bintime_sub(&cur_bt, &io->io_hdr.dma_start_bt); 12698 bintime_add(&io->io_hdr.dma_bt, &cur_bt); 12699#endif 12700 io->io_hdr.num_dmas++; 12701} 12702 12703/* 12704 * The DMA to the remote side is done, now we need to tell the other side 12705 * we're done so it can continue with its data movement. 12706 */ 12707static void 12708ctl_datamove_remote_write_cb(struct ctl_ha_dt_req *rq) 12709{ 12710 union ctl_io *io; 12711 uint32_t i; 12712 12713 io = rq->context; 12714 12715 if (rq->ret != CTL_HA_STATUS_SUCCESS) { 12716 printf("%s: ISC DMA write failed with error %d", __func__, 12717 rq->ret); 12718 ctl_set_internal_failure(&io->scsiio, 12719 /*sks_valid*/ 1, 12720 /*retry_count*/ rq->ret); 12721 } 12722 12723 ctl_dt_req_free(rq); 12724 12725 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 12726 free(io->io_hdr.local_sglist[i].addr, M_CTL); 12727 free(io->io_hdr.remote_sglist, M_CTL); 12728 io->io_hdr.remote_sglist = NULL; 12729 io->io_hdr.local_sglist = NULL; 12730 12731 /* 12732 * The data is in local and remote memory, so now we need to send 12733 * status (good or back) back to the other side. 12734 */ 12735 ctl_send_datamove_done(io, /*have_lock*/ 0); 12736} 12737 12738/* 12739 * We've moved the data from the host/controller into local memory. Now we 12740 * need to push it over to the remote controller's memory. 12741 */ 12742static int 12743ctl_datamove_remote_dm_write_cb(union ctl_io *io) 12744{ 12745 int retval; 12746 12747 retval = ctl_datamove_remote_xfer(io, CTL_HA_DT_CMD_WRITE, 12748 ctl_datamove_remote_write_cb); 12749 return (retval); 12750} 12751 12752static void 12753ctl_datamove_remote_write(union ctl_io *io) 12754{ 12755 int retval; 12756 void (*fe_datamove)(union ctl_io *io); 12757 12758 /* 12759 * - Get the data from the host/HBA into local memory. 12760 * - DMA memory from the local controller to the remote controller. 12761 * - Send status back to the remote controller. 12762 */ 12763 12764 retval = ctl_datamove_remote_sgl_setup(io); 12765 if (retval != 0) 12766 return; 12767 12768 /* Switch the pointer over so the FETD knows what to do */ 12769 io->scsiio.kern_data_ptr = (uint8_t *)io->io_hdr.local_sglist; 12770 12771 /* 12772 * Use a custom move done callback, since we need to send completion 12773 * back to the other controller, not to the backend on this side. 12774 */ 12775 io->scsiio.be_move_done = ctl_datamove_remote_dm_write_cb; 12776 12777 fe_datamove = CTL_PORT(io)->fe_datamove; 12778 fe_datamove(io); 12779} 12780 12781static int 12782ctl_datamove_remote_dm_read_cb(union ctl_io *io) 12783{ 12784#if 0 12785 char str[256]; 12786 char path_str[64]; 12787 struct sbuf sb; 12788#endif 12789 uint32_t i; 12790 12791 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 12792 free(io->io_hdr.local_sglist[i].addr, M_CTL); 12793 free(io->io_hdr.remote_sglist, M_CTL); 12794 io->io_hdr.remote_sglist = NULL; 12795 io->io_hdr.local_sglist = NULL; 12796 12797#if 0 12798 scsi_path_string(io, path_str, sizeof(path_str)); 12799 sbuf_new(&sb, str, sizeof(str), SBUF_FIXEDLEN); 12800 sbuf_cat(&sb, path_str); 12801 scsi_command_string(&io->scsiio, NULL, &sb); 12802 sbuf_printf(&sb, "\n"); 12803 sbuf_cat(&sb, path_str); 12804 sbuf_printf(&sb, "Tag: 0x%04x, type %d\n", 12805 io->scsiio.tag_num, io->scsiio.tag_type); 12806 sbuf_cat(&sb, path_str); 12807 sbuf_printf(&sb, "%s: flags %#x, status %#x\n", __func__, 12808 io->io_hdr.flags, io->io_hdr.status); 12809 sbuf_finish(&sb); 12810 printk("%s", sbuf_data(&sb)); 12811#endif 12812 12813 12814 /* 12815 * The read is done, now we need to send status (good or bad) back 12816 * to the other side. 12817 */ 12818 ctl_send_datamove_done(io, /*have_lock*/ 0); 12819 12820 return (0); 12821} 12822 12823static void 12824ctl_datamove_remote_read_cb(struct ctl_ha_dt_req *rq) 12825{ 12826 union ctl_io *io; 12827 void (*fe_datamove)(union ctl_io *io); 12828 12829 io = rq->context; 12830 12831 if (rq->ret != CTL_HA_STATUS_SUCCESS) { 12832 printf("%s: ISC DMA read failed with error %d\n", __func__, 12833 rq->ret); 12834 ctl_set_internal_failure(&io->scsiio, 12835 /*sks_valid*/ 1, 12836 /*retry_count*/ rq->ret); 12837 } 12838 12839 ctl_dt_req_free(rq); 12840 12841 /* Switch the pointer over so the FETD knows what to do */ 12842 io->scsiio.kern_data_ptr = (uint8_t *)io->io_hdr.local_sglist; 12843 12844 /* 12845 * Use a custom move done callback, since we need to send completion 12846 * back to the other controller, not to the backend on this side. 12847 */ 12848 io->scsiio.be_move_done = ctl_datamove_remote_dm_read_cb; 12849 12850 /* XXX KDM add checks like the ones in ctl_datamove? */ 12851 12852 fe_datamove = CTL_PORT(io)->fe_datamove; 12853 fe_datamove(io); 12854} 12855 12856static int 12857ctl_datamove_remote_sgl_setup(union ctl_io *io) 12858{ 12859 struct ctl_sg_entry *local_sglist; 12860 uint32_t len_to_go; 12861 int retval; 12862 int i; 12863 12864 retval = 0; 12865 local_sglist = io->io_hdr.local_sglist; 12866 len_to_go = io->scsiio.kern_data_len; 12867 12868 /* 12869 * The difficult thing here is that the size of the various 12870 * S/G segments may be different than the size from the 12871 * remote controller. That'll make it harder when DMAing 12872 * the data back to the other side. 12873 */ 12874 for (i = 0; len_to_go > 0; i++) { 12875 local_sglist[i].len = MIN(len_to_go, CTL_HA_DATAMOVE_SEGMENT); 12876 local_sglist[i].addr = 12877 malloc(local_sglist[i].len, M_CTL, M_WAITOK); 12878 12879 len_to_go -= local_sglist[i].len; 12880 } 12881 /* 12882 * Reset the number of S/G entries accordingly. The original 12883 * number of S/G entries is available in rem_sg_entries. 12884 */ 12885 io->scsiio.kern_sg_entries = i; 12886 12887#if 0 12888 printf("%s: kern_sg_entries = %d\n", __func__, 12889 io->scsiio.kern_sg_entries); 12890 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 12891 printf("%s: sg[%d] = %p, %lu\n", __func__, i, 12892 local_sglist[i].addr, local_sglist[i].len); 12893#endif 12894 12895 return (retval); 12896} 12897 12898static int 12899ctl_datamove_remote_xfer(union ctl_io *io, unsigned command, 12900 ctl_ha_dt_cb callback) 12901{ 12902 struct ctl_ha_dt_req *rq; 12903 struct ctl_sg_entry *remote_sglist, *local_sglist; 12904 uint32_t local_used, remote_used, total_used; 12905 int i, j, isc_ret; 12906 12907 rq = ctl_dt_req_alloc(); 12908 12909 /* 12910 * If we failed to allocate the request, and if the DMA didn't fail 12911 * anyway, set busy status. This is just a resource allocation 12912 * failure. 12913 */ 12914 if ((rq == NULL) 12915 && ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE && 12916 (io->io_hdr.status & CTL_STATUS_MASK) != CTL_SUCCESS)) 12917 ctl_set_busy(&io->scsiio); 12918 12919 if ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE && 12920 (io->io_hdr.status & CTL_STATUS_MASK) != CTL_SUCCESS) { 12921 12922 if (rq != NULL) 12923 ctl_dt_req_free(rq); 12924 12925 /* 12926 * The data move failed. We need to return status back 12927 * to the other controller. No point in trying to DMA 12928 * data to the remote controller. 12929 */ 12930 12931 ctl_send_datamove_done(io, /*have_lock*/ 0); 12932 12933 return (1); 12934 } 12935 12936 local_sglist = io->io_hdr.local_sglist; 12937 remote_sglist = io->io_hdr.remote_sglist; 12938 local_used = 0; 12939 remote_used = 0; 12940 total_used = 0; 12941 12942 /* 12943 * Pull/push the data over the wire from/to the other controller. 12944 * This takes into account the possibility that the local and 12945 * remote sglists may not be identical in terms of the size of 12946 * the elements and the number of elements. 12947 * 12948 * One fundamental assumption here is that the length allocated for 12949 * both the local and remote sglists is identical. Otherwise, we've 12950 * essentially got a coding error of some sort. 12951 */ 12952 isc_ret = CTL_HA_STATUS_SUCCESS; 12953 for (i = 0, j = 0; total_used < io->scsiio.kern_data_len; ) { 12954 uint32_t cur_len; 12955 uint8_t *tmp_ptr; 12956 12957 rq->command = command; 12958 rq->context = io; 12959 12960 /* 12961 * Both pointers should be aligned. But it is possible 12962 * that the allocation length is not. They should both 12963 * also have enough slack left over at the end, though, 12964 * to round up to the next 8 byte boundary. 12965 */ 12966 cur_len = MIN(local_sglist[i].len - local_used, 12967 remote_sglist[j].len - remote_used); 12968 rq->size = cur_len; 12969 12970 tmp_ptr = (uint8_t *)local_sglist[i].addr; 12971 tmp_ptr += local_used; 12972 12973#if 0 12974 /* Use physical addresses when talking to ISC hardware */ 12975 if ((io->io_hdr.flags & CTL_FLAG_BUS_ADDR) == 0) { 12976 /* XXX KDM use busdma */ 12977 rq->local = vtophys(tmp_ptr); 12978 } else 12979 rq->local = tmp_ptr; 12980#else 12981 KASSERT((io->io_hdr.flags & CTL_FLAG_BUS_ADDR) == 0, 12982 ("HA does not support BUS_ADDR")); 12983 rq->local = tmp_ptr; 12984#endif 12985 12986 tmp_ptr = (uint8_t *)remote_sglist[j].addr; 12987 tmp_ptr += remote_used; 12988 rq->remote = tmp_ptr; 12989 12990 rq->callback = NULL; 12991 12992 local_used += cur_len; 12993 if (local_used >= local_sglist[i].len) { 12994 i++; 12995 local_used = 0; 12996 } 12997 12998 remote_used += cur_len; 12999 if (remote_used >= remote_sglist[j].len) { 13000 j++; 13001 remote_used = 0; 13002 } 13003 total_used += cur_len; 13004 13005 if (total_used >= io->scsiio.kern_data_len) 13006 rq->callback = callback; 13007 13008#if 0 13009 printf("%s: %s: local %p remote %p size %d\n", __func__, 13010 (command == CTL_HA_DT_CMD_WRITE) ? "WRITE" : "READ", 13011 rq->local, rq->remote, rq->size); 13012#endif 13013 13014 isc_ret = ctl_dt_single(rq); 13015 if (isc_ret > CTL_HA_STATUS_SUCCESS) 13016 break; 13017 } 13018 if (isc_ret != CTL_HA_STATUS_WAIT) { 13019 rq->ret = isc_ret; 13020 callback(rq); 13021 } 13022 13023 return (0); 13024} 13025 13026static void 13027ctl_datamove_remote_read(union ctl_io *io) 13028{ 13029 int retval; 13030 uint32_t i; 13031 13032 /* 13033 * This will send an error to the other controller in the case of a 13034 * failure. 13035 */ 13036 retval = ctl_datamove_remote_sgl_setup(io); 13037 if (retval != 0) 13038 return; 13039 13040 retval = ctl_datamove_remote_xfer(io, CTL_HA_DT_CMD_READ, 13041 ctl_datamove_remote_read_cb); 13042 if (retval != 0) { 13043 /* 13044 * Make sure we free memory if there was an error.. The 13045 * ctl_datamove_remote_xfer() function will send the 13046 * datamove done message, or call the callback with an 13047 * error if there is a problem. 13048 */ 13049 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 13050 free(io->io_hdr.local_sglist[i].addr, M_CTL); 13051 free(io->io_hdr.remote_sglist, M_CTL); 13052 io->io_hdr.remote_sglist = NULL; 13053 io->io_hdr.local_sglist = NULL; 13054 } 13055} 13056 13057/* 13058 * Process a datamove request from the other controller. This is used for 13059 * XFER mode only, not SER_ONLY mode. For writes, we DMA into local memory 13060 * first. Once that is complete, the data gets DMAed into the remote 13061 * controller's memory. For reads, we DMA from the remote controller's 13062 * memory into our memory first, and then move it out to the FETD. 13063 */ 13064static void 13065ctl_datamove_remote(union ctl_io *io) 13066{ 13067 13068 mtx_assert(&((struct ctl_softc *)CTL_SOFTC(io))->ctl_lock, MA_NOTOWNED); 13069 13070 if (io->io_hdr.flags & CTL_FLAG_FAILOVER) { 13071 ctl_failover_io(io, /*have_lock*/ 0); 13072 return; 13073 } 13074 13075 /* 13076 * Note that we look for an aborted I/O here, but don't do some of 13077 * the other checks that ctl_datamove() normally does. 13078 * We don't need to run the datamove delay code, since that should 13079 * have been done if need be on the other controller. 13080 */ 13081 if (io->io_hdr.flags & CTL_FLAG_ABORT) { 13082 printf("%s: tag 0x%04x on (%u:%u:%u) aborted\n", __func__, 13083 io->scsiio.tag_num, io->io_hdr.nexus.initid, 13084 io->io_hdr.nexus.targ_port, 13085 io->io_hdr.nexus.targ_lun); 13086 io->io_hdr.port_status = 31338; 13087 ctl_send_datamove_done(io, /*have_lock*/ 0); 13088 return; 13089 } 13090 13091 if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_OUT) 13092 ctl_datamove_remote_write(io); 13093 else if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_IN) 13094 ctl_datamove_remote_read(io); 13095 else { 13096 io->io_hdr.port_status = 31339; 13097 ctl_send_datamove_done(io, /*have_lock*/ 0); 13098 } 13099} 13100 13101static void 13102ctl_process_done(union ctl_io *io) 13103{ 13104 struct ctl_softc *softc = CTL_SOFTC(io); 13105 struct ctl_port *port = CTL_PORT(io); 13106 struct ctl_lun *lun = CTL_LUN(io); 13107 void (*fe_done)(union ctl_io *io); 13108 union ctl_ha_msg msg; 13109 13110 CTL_DEBUG_PRINT(("ctl_process_done\n")); 13111 fe_done = port->fe_done; 13112 13113#ifdef CTL_TIME_IO 13114 if ((time_uptime - io->io_hdr.start_time) > ctl_time_io_secs) { 13115 char str[256]; 13116 char path_str[64]; 13117 struct sbuf sb; 13118 13119 ctl_scsi_path_string(io, path_str, sizeof(path_str)); 13120 sbuf_new(&sb, str, sizeof(str), SBUF_FIXEDLEN); 13121 13122 sbuf_cat(&sb, path_str); 13123 switch (io->io_hdr.io_type) { 13124 case CTL_IO_SCSI: 13125 ctl_scsi_command_string(&io->scsiio, NULL, &sb); 13126 sbuf_printf(&sb, "\n"); 13127 sbuf_cat(&sb, path_str); 13128 sbuf_printf(&sb, "Tag: 0x%04x, type %d\n", 13129 io->scsiio.tag_num, io->scsiio.tag_type); 13130 break; 13131 case CTL_IO_TASK: 13132 sbuf_printf(&sb, "Task I/O type: %d, Tag: 0x%04x, " 13133 "Tag Type: %d\n", io->taskio.task_action, 13134 io->taskio.tag_num, io->taskio.tag_type); 13135 break; 13136 default: 13137 panic("%s: Invalid CTL I/O type %d\n", 13138 __func__, io->io_hdr.io_type); 13139 } 13140 sbuf_cat(&sb, path_str); 13141 sbuf_printf(&sb, "ctl_process_done: %jd seconds\n", 13142 (intmax_t)time_uptime - io->io_hdr.start_time); 13143 sbuf_finish(&sb); 13144 printf("%s", sbuf_data(&sb)); 13145 } 13146#endif /* CTL_TIME_IO */ 13147 13148 switch (io->io_hdr.io_type) { 13149 case CTL_IO_SCSI: 13150 break; 13151 case CTL_IO_TASK: 13152 if (ctl_debug & CTL_DEBUG_INFO) 13153 ctl_io_error_print(io, NULL); 13154 fe_done(io); 13155 return; 13156 default: 13157 panic("%s: Invalid CTL I/O type %d\n", 13158 __func__, io->io_hdr.io_type); 13159 } 13160 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 int type; 13215#ifdef CTL_TIME_IO 13216 struct bintime bt; 13217 13218 getbinuptime(&bt); 13219 bintime_sub(&bt, &io->io_hdr.start_bt); 13220#endif 13221 if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == 13222 CTL_FLAG_DATA_IN) 13223 type = CTL_STATS_READ; 13224 else if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == 13225 CTL_FLAG_DATA_OUT) 13226 type = CTL_STATS_WRITE; 13227 else 13228 type = CTL_STATS_NO_IO; 13229 13230#ifdef CTL_LEGACY_STATS 13231 uint32_t targ_port = port->targ_port; 13232 lun->legacy_stats.ports[targ_port].bytes[type] += 13233 io->scsiio.kern_total_len; 13234 lun->legacy_stats.ports[targ_port].operations[type] ++; 13235 lun->legacy_stats.ports[targ_port].num_dmas[type] += 13236 io->io_hdr.num_dmas; 13237#ifdef CTL_TIME_IO 13238 bintime_add(&lun->legacy_stats.ports[targ_port].dma_time[type], 13239 &io->io_hdr.dma_bt); 13240 bintime_add(&lun->legacy_stats.ports[targ_port].time[type], 13241 &bt); 13242#endif 13243#endif /* CTL_LEGACY_STATS */ 13244 13245 lun->stats.bytes[type] += io->scsiio.kern_total_len; 13246 lun->stats.operations[type] ++; 13247 lun->stats.dmas[type] += io->io_hdr.num_dmas; 13248#ifdef CTL_TIME_IO 13249 bintime_add(&lun->stats.dma_time[type], &io->io_hdr.dma_bt); 13250 bintime_add(&lun->stats.time[type], &bt); 13251#endif 13252 13253 mtx_lock(&port->port_lock); 13254 port->stats.bytes[type] += io->scsiio.kern_total_len; 13255 port->stats.operations[type] ++; 13256 port->stats.dmas[type] += io->io_hdr.num_dmas; 13257#ifdef CTL_TIME_IO 13258 bintime_add(&port->stats.dma_time[type], &io->io_hdr.dma_bt); 13259 bintime_add(&port->stats.time[type], &bt); 13260#endif 13261 mtx_unlock(&port->port_lock); 13262 } 13263 13264 /* 13265 * Remove this from the OOA queue. 13266 */ 13267 TAILQ_REMOVE(&lun->ooa_queue, &io->io_hdr, ooa_links); 13268#ifdef CTL_TIME_IO 13269 if (TAILQ_EMPTY(&lun->ooa_queue)) 13270 lun->last_busy = getsbinuptime(); 13271#endif 13272 13273 /* 13274 * Run through the blocked queue on this LUN and see if anything 13275 * has become unblocked, now that this transaction is done. 13276 */ 13277 ctl_check_blocked(lun); 13278 13279 /* 13280 * If the LUN has been invalidated, free it if there is nothing 13281 * left on its OOA queue. 13282 */ 13283 if ((lun->flags & CTL_LUN_INVALID) 13284 && TAILQ_EMPTY(&lun->ooa_queue)) { 13285 mtx_unlock(&lun->lun_lock); 13286 mtx_lock(&softc->ctl_lock); 13287 ctl_free_lun(lun); 13288 mtx_unlock(&softc->ctl_lock); 13289 } else 13290 mtx_unlock(&lun->lun_lock); 13291 13292bailout: 13293 13294 /* 13295 * If this command has been aborted, make sure we set the status 13296 * properly. The FETD is responsible for freeing the I/O and doing 13297 * whatever it needs to do to clean up its state. 13298 */ 13299 if (io->io_hdr.flags & CTL_FLAG_ABORT) 13300 ctl_set_task_aborted(&io->scsiio); 13301 13302 /* 13303 * If enabled, print command error status. 13304 */ 13305 if ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_SUCCESS && 13306 (ctl_debug & CTL_DEBUG_INFO) != 0) 13307 ctl_io_error_print(io, NULL); 13308 13309 /* 13310 * Tell the FETD or the other shelf controller we're done with this 13311 * command. Note that only SCSI commands get to this point. Task 13312 * management commands are completed above. 13313 */ 13314 if ((softc->ha_mode != CTL_HA_MODE_XFER) && 13315 (io->io_hdr.flags & CTL_FLAG_SENT_2OTHER_SC)) { 13316 memset(&msg, 0, sizeof(msg)); 13317 msg.hdr.msg_type = CTL_MSG_FINISH_IO; 13318 msg.hdr.serializing_sc = io->io_hdr.serializing_sc; 13319 msg.hdr.nexus = io->io_hdr.nexus; 13320 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, 13321 sizeof(msg.scsi) - sizeof(msg.scsi.sense_data), 13322 M_WAITOK); 13323 } 13324 13325 fe_done(io); 13326} 13327 13328#ifdef CTL_WITH_CA 13329/* 13330 * Front end should call this if it doesn't do autosense. When the request 13331 * sense comes back in from the initiator, we'll dequeue this and send it. 13332 */ 13333int 13334ctl_queue_sense(union ctl_io *io) 13335{ 13336 struct ctl_softc *softc = CTL_SOFTC(io); 13337 struct ctl_port *port = CTL_PORT(io); 13338 struct ctl_lun *lun; 13339 uint32_t initidx, targ_lun; 13340 13341 CTL_DEBUG_PRINT(("ctl_queue_sense\n")); 13342 13343 targ_lun = ctl_lun_map_from_port(port, io->io_hdr.nexus.targ_lun); 13344 13345 /* 13346 * LUN lookup will likely move to the ctl_work_thread() once we 13347 * have our new queueing infrastructure (that doesn't put things on 13348 * a per-LUN queue initially). That is so that we can handle 13349 * things like an INQUIRY to a LUN that we don't have enabled. We 13350 * can't deal with that right now. 13351 * If we don't have a LUN for this, just toss the sense information. 13352 */ 13353 mtx_lock(&softc->ctl_lock); 13354 if (targ_lun >= CTL_MAX_LUNS || 13355 (lun = softc->ctl_luns[targ_lun]) == NULL) { 13356 mtx_unlock(&softc->ctl_lock); 13357 goto bailout; 13358 } 13359 mtx_lock(&lun->lun_lock); 13360 mtx_unlock(&softc->ctl_lock); 13361 13362 /* 13363 * Already have CA set for this LUN...toss the sense information. 13364 */ 13365 initidx = ctl_get_initindex(&io->io_hdr.nexus); 13366 if (ctl_is_set(lun->have_ca, initidx)) { 13367 mtx_unlock(&lun->lun_lock); 13368 goto bailout; 13369 } 13370 13371 memcpy(&lun->pending_sense[initidx], &io->scsiio.sense_data, 13372 MIN(sizeof(lun->pending_sense[initidx]), 13373 sizeof(io->scsiio.sense_data))); 13374 ctl_set_mask(lun->have_ca, initidx); 13375 mtx_unlock(&lun->lun_lock); 13376 13377bailout: 13378 ctl_free_io(io); 13379 return (CTL_RETVAL_COMPLETE); 13380} 13381#endif 13382 13383/* 13384 * Primary command inlet from frontend ports. All SCSI and task I/O 13385 * requests must go through this function. 13386 */ 13387int 13388ctl_queue(union ctl_io *io) 13389{ 13390 struct ctl_port *port = CTL_PORT(io); 13391 13392 CTL_DEBUG_PRINT(("ctl_queue cdb[0]=%02X\n", io->scsiio.cdb[0])); 13393 13394#ifdef CTL_TIME_IO 13395 io->io_hdr.start_time = time_uptime; 13396 getbinuptime(&io->io_hdr.start_bt); 13397#endif /* CTL_TIME_IO */ 13398 13399 /* Map FE-specific LUN ID into global one. */ 13400 io->io_hdr.nexus.targ_mapped_lun = 13401 ctl_lun_map_from_port(port, io->io_hdr.nexus.targ_lun); 13402 13403 switch (io->io_hdr.io_type) { 13404 case CTL_IO_SCSI: 13405 case CTL_IO_TASK: 13406 if (ctl_debug & CTL_DEBUG_CDB) 13407 ctl_io_print(io); 13408 ctl_enqueue_incoming(io); 13409 break; 13410 default: 13411 printf("ctl_queue: unknown I/O type %d\n", io->io_hdr.io_type); 13412 return (EINVAL); 13413 } 13414 13415 return (CTL_RETVAL_COMPLETE); 13416} 13417 13418#ifdef CTL_IO_DELAY 13419static void 13420ctl_done_timer_wakeup(void *arg) 13421{ 13422 union ctl_io *io; 13423 13424 io = (union ctl_io *)arg; 13425 ctl_done(io); 13426} 13427#endif /* CTL_IO_DELAY */ 13428 13429void 13430ctl_serseq_done(union ctl_io *io) 13431{ 13432 struct ctl_lun *lun = CTL_LUN(io);; 13433 13434 if (lun->be_lun == NULL || 13435 lun->be_lun->serseq == CTL_LUN_SERSEQ_OFF) 13436 return; 13437 mtx_lock(&lun->lun_lock); 13438 io->io_hdr.flags |= CTL_FLAG_SERSEQ_DONE; 13439 ctl_check_blocked(lun); 13440 mtx_unlock(&lun->lun_lock); 13441} 13442 13443void 13444ctl_done(union ctl_io *io) 13445{ 13446 13447 /* 13448 * Enable this to catch duplicate completion issues. 13449 */ 13450#if 0 13451 if (io->io_hdr.flags & CTL_FLAG_ALREADY_DONE) { 13452 printf("%s: type %d msg %d cdb %x iptl: " 13453 "%u:%u:%u tag 0x%04x " 13454 "flag %#x status %x\n", 13455 __func__, 13456 io->io_hdr.io_type, 13457 io->io_hdr.msg_type, 13458 io->scsiio.cdb[0], 13459 io->io_hdr.nexus.initid, 13460 io->io_hdr.nexus.targ_port, 13461 io->io_hdr.nexus.targ_lun, 13462 (io->io_hdr.io_type == 13463 CTL_IO_TASK) ? 13464 io->taskio.tag_num : 13465 io->scsiio.tag_num, 13466 io->io_hdr.flags, 13467 io->io_hdr.status); 13468 } else 13469 io->io_hdr.flags |= CTL_FLAG_ALREADY_DONE; 13470#endif 13471 13472 /* 13473 * This is an internal copy of an I/O, and should not go through 13474 * the normal done processing logic. 13475 */ 13476 if (io->io_hdr.flags & CTL_FLAG_INT_COPY) 13477 return; 13478 13479#ifdef CTL_IO_DELAY 13480 if (io->io_hdr.flags & CTL_FLAG_DELAY_DONE) { 13481 io->io_hdr.flags &= ~CTL_FLAG_DELAY_DONE; 13482 } else { 13483 struct ctl_lun *lun = CTL_LUN(io); 13484 13485 if ((lun != NULL) 13486 && (lun->delay_info.done_delay > 0)) { 13487 13488 callout_init(&io->io_hdr.delay_callout, /*mpsafe*/ 1); 13489 io->io_hdr.flags |= CTL_FLAG_DELAY_DONE; 13490 callout_reset(&io->io_hdr.delay_callout, 13491 lun->delay_info.done_delay * hz, 13492 ctl_done_timer_wakeup, io); 13493 if (lun->delay_info.done_type == CTL_DELAY_TYPE_ONESHOT) 13494 lun->delay_info.done_delay = 0; 13495 return; 13496 } 13497 } 13498#endif /* CTL_IO_DELAY */ 13499 13500 ctl_enqueue_done(io); 13501} 13502 13503static void 13504ctl_work_thread(void *arg) 13505{ 13506 struct ctl_thread *thr = (struct ctl_thread *)arg; 13507 struct ctl_softc *softc = thr->ctl_softc; 13508 union ctl_io *io; 13509 int retval; 13510 13511 CTL_DEBUG_PRINT(("ctl_work_thread starting\n")); 13512 13513 for (;;) { 13514 /* 13515 * We handle the queues in this order: 13516 * - ISC 13517 * - done queue (to free up resources, unblock other commands) 13518 * - RtR queue 13519 * - incoming queue 13520 * 13521 * If those queues are empty, we break out of the loop and 13522 * go to sleep. 13523 */ 13524 mtx_lock(&thr->queue_lock); 13525 io = (union ctl_io *)STAILQ_FIRST(&thr->isc_queue); 13526 if (io != NULL) { 13527 STAILQ_REMOVE_HEAD(&thr->isc_queue, links); 13528 mtx_unlock(&thr->queue_lock); 13529 ctl_handle_isc(io); 13530 continue; 13531 } 13532 io = (union ctl_io *)STAILQ_FIRST(&thr->done_queue); 13533 if (io != NULL) { 13534 STAILQ_REMOVE_HEAD(&thr->done_queue, links); 13535 /* clear any blocked commands, call fe_done */ 13536 mtx_unlock(&thr->queue_lock); 13537 ctl_process_done(io); 13538 continue; 13539 } 13540 io = (union ctl_io *)STAILQ_FIRST(&thr->incoming_queue); 13541 if (io != NULL) { 13542 STAILQ_REMOVE_HEAD(&thr->incoming_queue, links); 13543 mtx_unlock(&thr->queue_lock); 13544 if (io->io_hdr.io_type == CTL_IO_TASK) 13545 ctl_run_task(io); 13546 else 13547 ctl_scsiio_precheck(softc, &io->scsiio); 13548 continue; 13549 } 13550 io = (union ctl_io *)STAILQ_FIRST(&thr->rtr_queue); 13551 if (io != NULL) { 13552 STAILQ_REMOVE_HEAD(&thr->rtr_queue, links); 13553 mtx_unlock(&thr->queue_lock); 13554 retval = ctl_scsiio(&io->scsiio); 13555 if (retval != CTL_RETVAL_COMPLETE) 13556 CTL_DEBUG_PRINT(("ctl_scsiio failed\n")); 13557 continue; 13558 } 13559 13560 /* Sleep until we have something to do. */ 13561 mtx_sleep(thr, &thr->queue_lock, PDROP | PRIBIO, "-", 0); 13562 } 13563} 13564 13565static void 13566ctl_lun_thread(void *arg) 13567{ 13568 struct ctl_softc *softc = (struct ctl_softc *)arg; 13569 struct ctl_be_lun *be_lun; 13570 13571 CTL_DEBUG_PRINT(("ctl_lun_thread starting\n")); 13572 13573 for (;;) { 13574 mtx_lock(&softc->ctl_lock); 13575 be_lun = STAILQ_FIRST(&softc->pending_lun_queue); 13576 if (be_lun != NULL) { 13577 STAILQ_REMOVE_HEAD(&softc->pending_lun_queue, links); 13578 mtx_unlock(&softc->ctl_lock); 13579 ctl_create_lun(be_lun); 13580 continue; 13581 } 13582 13583 /* Sleep until we have something to do. */ 13584 mtx_sleep(&softc->pending_lun_queue, &softc->ctl_lock, 13585 PDROP | PRIBIO, "-", 0); 13586 } 13587} 13588 13589static void 13590ctl_thresh_thread(void *arg) 13591{ 13592 struct ctl_softc *softc = (struct ctl_softc *)arg; 13593 struct ctl_lun *lun; 13594 struct ctl_logical_block_provisioning_page *page; 13595 const char *attr; 13596 union ctl_ha_msg msg; 13597 uint64_t thres, val; 13598 int i, e, set; 13599 13600 CTL_DEBUG_PRINT(("ctl_thresh_thread starting\n")); 13601 13602 for (;;) { 13603 mtx_lock(&softc->ctl_lock); 13604 STAILQ_FOREACH(lun, &softc->lun_list, links) { 13605 if ((lun->flags & CTL_LUN_DISABLED) || 13606 (lun->flags & CTL_LUN_NO_MEDIA) || 13607 lun->backend->lun_attr == NULL) 13608 continue; 13609 if ((lun->flags & CTL_LUN_PRIMARY_SC) == 0 && 13610 softc->ha_mode == CTL_HA_MODE_XFER) 13611 continue; 13612 if ((lun->MODE_RWER.byte8 & SMS_RWER_LBPERE) == 0) 13613 continue; 13614 e = 0; 13615 page = &lun->MODE_LBP; 13616 for (i = 0; i < CTL_NUM_LBP_THRESH; i++) { 13617 if ((page->descr[i].flags & SLBPPD_ENABLED) == 0) 13618 continue; 13619 thres = scsi_4btoul(page->descr[i].count); 13620 thres <<= CTL_LBP_EXPONENT; 13621 switch (page->descr[i].resource) { 13622 case 0x01: 13623 attr = "blocksavail"; 13624 break; 13625 case 0x02: 13626 attr = "blocksused"; 13627 break; 13628 case 0xf1: 13629 attr = "poolblocksavail"; 13630 break; 13631 case 0xf2: 13632 attr = "poolblocksused"; 13633 break; 13634 default: 13635 continue; 13636 } 13637 mtx_unlock(&softc->ctl_lock); // XXX 13638 val = lun->backend->lun_attr( 13639 lun->be_lun->be_lun, attr); 13640 mtx_lock(&softc->ctl_lock); 13641 if (val == UINT64_MAX) 13642 continue; 13643 if ((page->descr[i].flags & SLBPPD_ARMING_MASK) 13644 == SLBPPD_ARMING_INC) 13645 e = (val >= thres); 13646 else 13647 e = (val <= thres); 13648 if (e) 13649 break; 13650 } 13651 mtx_lock(&lun->lun_lock); 13652 if (e) { 13653 scsi_u64to8b((uint8_t *)&page->descr[i] - 13654 (uint8_t *)page, lun->ua_tpt_info); 13655 if (lun->lasttpt == 0 || 13656 time_uptime - lun->lasttpt >= CTL_LBP_UA_PERIOD) { 13657 lun->lasttpt = time_uptime; 13658 ctl_est_ua_all(lun, -1, CTL_UA_THIN_PROV_THRES); 13659 set = 1; 13660 } else 13661 set = 0; 13662 } else { 13663 lun->lasttpt = 0; 13664 ctl_clr_ua_all(lun, -1, CTL_UA_THIN_PROV_THRES); 13665 set = -1; 13666 } 13667 mtx_unlock(&lun->lun_lock); 13668 if (set != 0 && 13669 lun->ctl_softc->ha_mode == CTL_HA_MODE_XFER) { 13670 /* Send msg to other side. */ 13671 bzero(&msg.ua, sizeof(msg.ua)); 13672 msg.hdr.msg_type = CTL_MSG_UA; 13673 msg.hdr.nexus.initid = -1; 13674 msg.hdr.nexus.targ_port = -1; 13675 msg.hdr.nexus.targ_lun = lun->lun; 13676 msg.hdr.nexus.targ_mapped_lun = lun->lun; 13677 msg.ua.ua_all = 1; 13678 msg.ua.ua_set = (set > 0); 13679 msg.ua.ua_type = CTL_UA_THIN_PROV_THRES; 13680 memcpy(msg.ua.ua_info, lun->ua_tpt_info, 8); 13681 mtx_unlock(&softc->ctl_lock); // XXX 13682 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, 13683 sizeof(msg.ua), M_WAITOK); 13684 mtx_lock(&softc->ctl_lock); 13685 } 13686 } 13687 mtx_unlock(&softc->ctl_lock); 13688 pause("-", CTL_LBP_PERIOD * hz); 13689 } 13690} 13691 13692static void 13693ctl_enqueue_incoming(union ctl_io *io) 13694{ 13695 struct ctl_softc *softc = CTL_SOFTC(io); 13696 struct ctl_thread *thr; 13697 u_int idx; 13698 13699 idx = (io->io_hdr.nexus.targ_port * 127 + 13700 io->io_hdr.nexus.initid) % worker_threads; 13701 thr = &softc->threads[idx]; 13702 mtx_lock(&thr->queue_lock); 13703 STAILQ_INSERT_TAIL(&thr->incoming_queue, &io->io_hdr, links); 13704 mtx_unlock(&thr->queue_lock); 13705 wakeup(thr); 13706} 13707 13708static void 13709ctl_enqueue_rtr(union ctl_io *io) 13710{ 13711 struct ctl_softc *softc = CTL_SOFTC(io); 13712 struct ctl_thread *thr; 13713 13714 thr = &softc->threads[io->io_hdr.nexus.targ_mapped_lun % worker_threads]; 13715 mtx_lock(&thr->queue_lock); 13716 STAILQ_INSERT_TAIL(&thr->rtr_queue, &io->io_hdr, links); 13717 mtx_unlock(&thr->queue_lock); 13718 wakeup(thr); 13719} 13720 13721static void 13722ctl_enqueue_done(union ctl_io *io) 13723{ 13724 struct ctl_softc *softc = CTL_SOFTC(io); 13725 struct ctl_thread *thr; 13726 13727 thr = &softc->threads[io->io_hdr.nexus.targ_mapped_lun % worker_threads]; 13728 mtx_lock(&thr->queue_lock); 13729 STAILQ_INSERT_TAIL(&thr->done_queue, &io->io_hdr, links); 13730 mtx_unlock(&thr->queue_lock); 13731 wakeup(thr); 13732} 13733 13734static void 13735ctl_enqueue_isc(union ctl_io *io) 13736{ 13737 struct ctl_softc *softc = CTL_SOFTC(io); 13738 struct ctl_thread *thr; 13739 13740 thr = &softc->threads[io->io_hdr.nexus.targ_mapped_lun % worker_threads]; 13741 mtx_lock(&thr->queue_lock); 13742 STAILQ_INSERT_TAIL(&thr->isc_queue, &io->io_hdr, links); 13743 mtx_unlock(&thr->queue_lock); 13744 wakeup(thr); 13745} 13746 13747/* 13748 * vim: ts=8 13749 */ 13750