ctl.c revision 312839
1/*- 2 * Copyright (c) 2003-2009 Silicon Graphics International Corp. 3 * Copyright (c) 2012 The FreeBSD Foundation 4 * Copyright (c) 2015 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 312839 2017-01-26 20:57:48Z 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_lun *lun; 2562 int retval; 2563 2564 retval = 0; 2565 2566 switch (cmd) { 2567 case CTL_IO: 2568 retval = ctl_ioctl_io(dev, cmd, addr, flag, td); 2569 break; 2570 case CTL_ENABLE_PORT: 2571 case CTL_DISABLE_PORT: 2572 case CTL_SET_PORT_WWNS: { 2573 struct ctl_port *port; 2574 struct ctl_port_entry *entry; 2575 2576 entry = (struct ctl_port_entry *)addr; 2577 2578 mtx_lock(&softc->ctl_lock); 2579 STAILQ_FOREACH(port, &softc->port_list, links) { 2580 int action, done; 2581 2582 if (port->targ_port < softc->port_min || 2583 port->targ_port >= softc->port_max) 2584 continue; 2585 2586 action = 0; 2587 done = 0; 2588 if ((entry->port_type == CTL_PORT_NONE) 2589 && (entry->targ_port == port->targ_port)) { 2590 /* 2591 * If the user only wants to enable or 2592 * disable or set WWNs on a specific port, 2593 * do the operation and we're done. 2594 */ 2595 action = 1; 2596 done = 1; 2597 } else if (entry->port_type & port->port_type) { 2598 /* 2599 * Compare the user's type mask with the 2600 * particular frontend type to see if we 2601 * have a match. 2602 */ 2603 action = 1; 2604 done = 0; 2605 2606 /* 2607 * Make sure the user isn't trying to set 2608 * WWNs on multiple ports at the same time. 2609 */ 2610 if (cmd == CTL_SET_PORT_WWNS) { 2611 printf("%s: Can't set WWNs on " 2612 "multiple ports\n", __func__); 2613 retval = EINVAL; 2614 break; 2615 } 2616 } 2617 if (action == 0) 2618 continue; 2619 2620 /* 2621 * XXX KDM we have to drop the lock here, because 2622 * the online/offline operations can potentially 2623 * block. We need to reference count the frontends 2624 * so they can't go away, 2625 */ 2626 if (cmd == CTL_ENABLE_PORT) { 2627 mtx_unlock(&softc->ctl_lock); 2628 ctl_port_online(port); 2629 mtx_lock(&softc->ctl_lock); 2630 } else if (cmd == CTL_DISABLE_PORT) { 2631 mtx_unlock(&softc->ctl_lock); 2632 ctl_port_offline(port); 2633 mtx_lock(&softc->ctl_lock); 2634 } else if (cmd == CTL_SET_PORT_WWNS) { 2635 ctl_port_set_wwns(port, 2636 (entry->flags & CTL_PORT_WWNN_VALID) ? 2637 1 : 0, entry->wwnn, 2638 (entry->flags & CTL_PORT_WWPN_VALID) ? 2639 1 : 0, entry->wwpn); 2640 } 2641 if (done != 0) 2642 break; 2643 } 2644 mtx_unlock(&softc->ctl_lock); 2645 break; 2646 } 2647 case CTL_GET_OOA: { 2648 struct ctl_ooa *ooa_hdr; 2649 struct ctl_ooa_entry *entries; 2650 uint32_t cur_fill_num; 2651 2652 ooa_hdr = (struct ctl_ooa *)addr; 2653 2654 if ((ooa_hdr->alloc_len == 0) 2655 || (ooa_hdr->alloc_num == 0)) { 2656 printf("%s: CTL_GET_OOA: alloc len %u and alloc num %u " 2657 "must be non-zero\n", __func__, 2658 ooa_hdr->alloc_len, ooa_hdr->alloc_num); 2659 retval = EINVAL; 2660 break; 2661 } 2662 2663 if (ooa_hdr->alloc_len != (ooa_hdr->alloc_num * 2664 sizeof(struct ctl_ooa_entry))) { 2665 printf("%s: CTL_GET_OOA: alloc len %u must be alloc " 2666 "num %d * sizeof(struct ctl_ooa_entry) %zd\n", 2667 __func__, ooa_hdr->alloc_len, 2668 ooa_hdr->alloc_num,sizeof(struct ctl_ooa_entry)); 2669 retval = EINVAL; 2670 break; 2671 } 2672 2673 entries = malloc(ooa_hdr->alloc_len, M_CTL, M_WAITOK | M_ZERO); 2674 if (entries == NULL) { 2675 printf("%s: could not allocate %d bytes for OOA " 2676 "dump\n", __func__, ooa_hdr->alloc_len); 2677 retval = ENOMEM; 2678 break; 2679 } 2680 2681 mtx_lock(&softc->ctl_lock); 2682 if ((ooa_hdr->flags & CTL_OOA_FLAG_ALL_LUNS) == 0 && 2683 (ooa_hdr->lun_num >= CTL_MAX_LUNS || 2684 softc->ctl_luns[ooa_hdr->lun_num] == NULL)) { 2685 mtx_unlock(&softc->ctl_lock); 2686 free(entries, M_CTL); 2687 printf("%s: CTL_GET_OOA: invalid LUN %ju\n", 2688 __func__, (uintmax_t)ooa_hdr->lun_num); 2689 retval = EINVAL; 2690 break; 2691 } 2692 2693 cur_fill_num = 0; 2694 2695 if (ooa_hdr->flags & CTL_OOA_FLAG_ALL_LUNS) { 2696 STAILQ_FOREACH(lun, &softc->lun_list, links) { 2697 ctl_ioctl_fill_ooa(lun, &cur_fill_num, 2698 ooa_hdr, entries); 2699 } 2700 } else { 2701 lun = softc->ctl_luns[ooa_hdr->lun_num]; 2702 ctl_ioctl_fill_ooa(lun, &cur_fill_num, ooa_hdr, 2703 entries); 2704 } 2705 mtx_unlock(&softc->ctl_lock); 2706 2707 ooa_hdr->fill_num = min(cur_fill_num, ooa_hdr->alloc_num); 2708 ooa_hdr->fill_len = ooa_hdr->fill_num * 2709 sizeof(struct ctl_ooa_entry); 2710 retval = copyout(entries, ooa_hdr->entries, ooa_hdr->fill_len); 2711 if (retval != 0) { 2712 printf("%s: error copying out %d bytes for OOA dump\n", 2713 __func__, ooa_hdr->fill_len); 2714 } 2715 2716 getbinuptime(&ooa_hdr->cur_bt); 2717 2718 if (cur_fill_num > ooa_hdr->alloc_num) { 2719 ooa_hdr->dropped_num = cur_fill_num -ooa_hdr->alloc_num; 2720 ooa_hdr->status = CTL_OOA_NEED_MORE_SPACE; 2721 } else { 2722 ooa_hdr->dropped_num = 0; 2723 ooa_hdr->status = CTL_OOA_OK; 2724 } 2725 2726 free(entries, M_CTL); 2727 break; 2728 } 2729 case CTL_DELAY_IO: { 2730 struct ctl_io_delay_info *delay_info; 2731 2732 delay_info = (struct ctl_io_delay_info *)addr; 2733 2734#ifdef CTL_IO_DELAY 2735 mtx_lock(&softc->ctl_lock); 2736 if (delay_info->lun_id >= CTL_MAX_LUNS || 2737 (lun = softc->ctl_luns[delay_info->lun_id]) == NULL) { 2738 mtx_unlock(&softc->ctl_lock); 2739 delay_info->status = CTL_DELAY_STATUS_INVALID_LUN; 2740 break; 2741 } 2742 mtx_lock(&lun->lun_lock); 2743 mtx_unlock(&softc->ctl_lock); 2744 delay_info->status = CTL_DELAY_STATUS_OK; 2745 switch (delay_info->delay_type) { 2746 case CTL_DELAY_TYPE_CONT: 2747 case CTL_DELAY_TYPE_ONESHOT: 2748 break; 2749 default: 2750 delay_info->status = CTL_DELAY_STATUS_INVALID_TYPE; 2751 break; 2752 } 2753 switch (delay_info->delay_loc) { 2754 case CTL_DELAY_LOC_DATAMOVE: 2755 lun->delay_info.datamove_type = delay_info->delay_type; 2756 lun->delay_info.datamove_delay = delay_info->delay_secs; 2757 break; 2758 case CTL_DELAY_LOC_DONE: 2759 lun->delay_info.done_type = delay_info->delay_type; 2760 lun->delay_info.done_delay = delay_info->delay_secs; 2761 break; 2762 default: 2763 delay_info->status = CTL_DELAY_STATUS_INVALID_LOC; 2764 break; 2765 } 2766 mtx_unlock(&lun->lun_lock); 2767#else 2768 delay_info->status = CTL_DELAY_STATUS_NOT_IMPLEMENTED; 2769#endif /* CTL_IO_DELAY */ 2770 break; 2771 } 2772 case CTL_GETSTATS: { 2773 struct ctl_stats *stats = (struct ctl_stats *)addr; 2774 int i; 2775 2776 /* 2777 * XXX KDM no locking here. If the LUN list changes, 2778 * things can blow up. 2779 */ 2780 i = 0; 2781 stats->status = CTL_SS_OK; 2782 stats->fill_len = 0; 2783 STAILQ_FOREACH(lun, &softc->lun_list, links) { 2784 if (stats->fill_len + sizeof(lun->stats) > 2785 stats->alloc_len) { 2786 stats->status = CTL_SS_NEED_MORE_SPACE; 2787 break; 2788 } 2789 retval = copyout(&lun->stats, &stats->lun_stats[i++], 2790 sizeof(lun->stats)); 2791 if (retval != 0) 2792 break; 2793 stats->fill_len += sizeof(lun->stats); 2794 } 2795 stats->num_luns = softc->num_luns; 2796#ifdef CTL_TIME_IO 2797 stats->flags = CTL_STATS_FLAG_TIME_VALID; 2798#else 2799 stats->flags = CTL_STATS_FLAG_NONE; 2800#endif 2801 getnanouptime(&stats->timestamp); 2802 break; 2803 } 2804 case CTL_ERROR_INJECT: { 2805 struct ctl_error_desc *err_desc, *new_err_desc; 2806 2807 err_desc = (struct ctl_error_desc *)addr; 2808 2809 new_err_desc = malloc(sizeof(*new_err_desc), M_CTL, 2810 M_WAITOK | M_ZERO); 2811 bcopy(err_desc, new_err_desc, sizeof(*new_err_desc)); 2812 2813 mtx_lock(&softc->ctl_lock); 2814 if (err_desc->lun_id >= CTL_MAX_LUNS || 2815 (lun = softc->ctl_luns[err_desc->lun_id]) == NULL) { 2816 mtx_unlock(&softc->ctl_lock); 2817 free(new_err_desc, M_CTL); 2818 printf("%s: CTL_ERROR_INJECT: invalid LUN %ju\n", 2819 __func__, (uintmax_t)err_desc->lun_id); 2820 retval = EINVAL; 2821 break; 2822 } 2823 mtx_lock(&lun->lun_lock); 2824 mtx_unlock(&softc->ctl_lock); 2825 2826 /* 2827 * We could do some checking here to verify the validity 2828 * of the request, but given the complexity of error 2829 * injection requests, the checking logic would be fairly 2830 * complex. 2831 * 2832 * For now, if the request is invalid, it just won't get 2833 * executed and might get deleted. 2834 */ 2835 STAILQ_INSERT_TAIL(&lun->error_list, new_err_desc, links); 2836 2837 /* 2838 * XXX KDM check to make sure the serial number is unique, 2839 * in case we somehow manage to wrap. That shouldn't 2840 * happen for a very long time, but it's the right thing to 2841 * do. 2842 */ 2843 new_err_desc->serial = lun->error_serial; 2844 err_desc->serial = lun->error_serial; 2845 lun->error_serial++; 2846 2847 mtx_unlock(&lun->lun_lock); 2848 break; 2849 } 2850 case CTL_ERROR_INJECT_DELETE: { 2851 struct ctl_error_desc *delete_desc, *desc, *desc2; 2852 int delete_done; 2853 2854 delete_desc = (struct ctl_error_desc *)addr; 2855 delete_done = 0; 2856 2857 mtx_lock(&softc->ctl_lock); 2858 if (delete_desc->lun_id >= CTL_MAX_LUNS || 2859 (lun = softc->ctl_luns[delete_desc->lun_id]) == NULL) { 2860 mtx_unlock(&softc->ctl_lock); 2861 printf("%s: CTL_ERROR_INJECT_DELETE: invalid LUN %ju\n", 2862 __func__, (uintmax_t)delete_desc->lun_id); 2863 retval = EINVAL; 2864 break; 2865 } 2866 mtx_lock(&lun->lun_lock); 2867 mtx_unlock(&softc->ctl_lock); 2868 STAILQ_FOREACH_SAFE(desc, &lun->error_list, links, desc2) { 2869 if (desc->serial != delete_desc->serial) 2870 continue; 2871 2872 STAILQ_REMOVE(&lun->error_list, desc, ctl_error_desc, 2873 links); 2874 free(desc, M_CTL); 2875 delete_done = 1; 2876 } 2877 mtx_unlock(&lun->lun_lock); 2878 if (delete_done == 0) { 2879 printf("%s: CTL_ERROR_INJECT_DELETE: can't find " 2880 "error serial %ju on LUN %u\n", __func__, 2881 delete_desc->serial, delete_desc->lun_id); 2882 retval = EINVAL; 2883 break; 2884 } 2885 break; 2886 } 2887 case CTL_DUMP_STRUCTS: { 2888 int j, k; 2889 struct ctl_port *port; 2890 struct ctl_frontend *fe; 2891 2892 mtx_lock(&softc->ctl_lock); 2893 printf("CTL Persistent Reservation information start:\n"); 2894 STAILQ_FOREACH(lun, &softc->lun_list, links) { 2895 mtx_lock(&lun->lun_lock); 2896 if ((lun->flags & CTL_LUN_DISABLED) != 0) { 2897 mtx_unlock(&lun->lun_lock); 2898 continue; 2899 } 2900 2901 for (j = 0; j < CTL_MAX_PORTS; j++) { 2902 if (lun->pr_keys[j] == NULL) 2903 continue; 2904 for (k = 0; k < CTL_MAX_INIT_PER_PORT; k++){ 2905 if (lun->pr_keys[j][k] == 0) 2906 continue; 2907 printf(" LUN %ju port %d iid %d key " 2908 "%#jx\n", lun->lun, j, k, 2909 (uintmax_t)lun->pr_keys[j][k]); 2910 } 2911 } 2912 mtx_unlock(&lun->lun_lock); 2913 } 2914 printf("CTL Persistent Reservation information end\n"); 2915 printf("CTL Ports:\n"); 2916 STAILQ_FOREACH(port, &softc->port_list, links) { 2917 printf(" Port %d '%s' Frontend '%s' Type %u pp %d vp %d WWNN " 2918 "%#jx WWPN %#jx\n", port->targ_port, port->port_name, 2919 port->frontend->name, port->port_type, 2920 port->physical_port, port->virtual_port, 2921 (uintmax_t)port->wwnn, (uintmax_t)port->wwpn); 2922 for (j = 0; j < CTL_MAX_INIT_PER_PORT; j++) { 2923 if (port->wwpn_iid[j].in_use == 0 && 2924 port->wwpn_iid[j].wwpn == 0 && 2925 port->wwpn_iid[j].name == NULL) 2926 continue; 2927 2928 printf(" iid %u use %d WWPN %#jx '%s'\n", 2929 j, port->wwpn_iid[j].in_use, 2930 (uintmax_t)port->wwpn_iid[j].wwpn, 2931 port->wwpn_iid[j].name); 2932 } 2933 } 2934 printf("CTL Port information end\n"); 2935 mtx_unlock(&softc->ctl_lock); 2936 /* 2937 * XXX KDM calling this without a lock. We'd likely want 2938 * to drop the lock before calling the frontend's dump 2939 * routine anyway. 2940 */ 2941 printf("CTL Frontends:\n"); 2942 STAILQ_FOREACH(fe, &softc->fe_list, links) { 2943 printf(" Frontend '%s'\n", fe->name); 2944 if (fe->fe_dump != NULL) 2945 fe->fe_dump(); 2946 } 2947 printf("CTL Frontend information end\n"); 2948 break; 2949 } 2950 case CTL_LUN_REQ: { 2951 struct ctl_lun_req *lun_req; 2952 struct ctl_backend_driver *backend; 2953 2954 lun_req = (struct ctl_lun_req *)addr; 2955 2956 backend = ctl_backend_find(lun_req->backend); 2957 if (backend == NULL) { 2958 lun_req->status = CTL_LUN_ERROR; 2959 snprintf(lun_req->error_str, 2960 sizeof(lun_req->error_str), 2961 "Backend \"%s\" not found.", 2962 lun_req->backend); 2963 break; 2964 } 2965 if (lun_req->num_be_args > 0) { 2966 lun_req->kern_be_args = ctl_copyin_args( 2967 lun_req->num_be_args, 2968 lun_req->be_args, 2969 lun_req->error_str, 2970 sizeof(lun_req->error_str)); 2971 if (lun_req->kern_be_args == NULL) { 2972 lun_req->status = CTL_LUN_ERROR; 2973 break; 2974 } 2975 } 2976 2977 retval = backend->ioctl(dev, cmd, addr, flag, td); 2978 2979 if (lun_req->num_be_args > 0) { 2980 ctl_copyout_args(lun_req->num_be_args, 2981 lun_req->kern_be_args); 2982 ctl_free_args(lun_req->num_be_args, 2983 lun_req->kern_be_args); 2984 } 2985 break; 2986 } 2987 case CTL_LUN_LIST: { 2988 struct sbuf *sb; 2989 struct ctl_lun_list *list; 2990 struct ctl_option *opt; 2991 2992 list = (struct ctl_lun_list *)addr; 2993 2994 /* 2995 * Allocate a fixed length sbuf here, based on the length 2996 * of the user's buffer. We could allocate an auto-extending 2997 * buffer, and then tell the user how much larger our 2998 * amount of data is than his buffer, but that presents 2999 * some problems: 3000 * 3001 * 1. The sbuf(9) routines use a blocking malloc, and so 3002 * we can't hold a lock while calling them with an 3003 * auto-extending buffer. 3004 * 3005 * 2. There is not currently a LUN reference counting 3006 * mechanism, outside of outstanding transactions on 3007 * the LUN's OOA queue. So a LUN could go away on us 3008 * while we're getting the LUN number, backend-specific 3009 * information, etc. Thus, given the way things 3010 * currently work, we need to hold the CTL lock while 3011 * grabbing LUN information. 3012 * 3013 * So, from the user's standpoint, the best thing to do is 3014 * allocate what he thinks is a reasonable buffer length, 3015 * and then if he gets a CTL_LUN_LIST_NEED_MORE_SPACE error, 3016 * double the buffer length and try again. (And repeat 3017 * that until he succeeds.) 3018 */ 3019 sb = sbuf_new(NULL, NULL, list->alloc_len, SBUF_FIXEDLEN); 3020 if (sb == NULL) { 3021 list->status = CTL_LUN_LIST_ERROR; 3022 snprintf(list->error_str, sizeof(list->error_str), 3023 "Unable to allocate %d bytes for LUN list", 3024 list->alloc_len); 3025 break; 3026 } 3027 3028 sbuf_printf(sb, "<ctllunlist>\n"); 3029 3030 mtx_lock(&softc->ctl_lock); 3031 STAILQ_FOREACH(lun, &softc->lun_list, links) { 3032 mtx_lock(&lun->lun_lock); 3033 retval = sbuf_printf(sb, "<lun id=\"%ju\">\n", 3034 (uintmax_t)lun->lun); 3035 3036 /* 3037 * Bail out as soon as we see that we've overfilled 3038 * the buffer. 3039 */ 3040 if (retval != 0) 3041 break; 3042 3043 retval = sbuf_printf(sb, "\t<backend_type>%s" 3044 "</backend_type>\n", 3045 (lun->backend == NULL) ? "none" : 3046 lun->backend->name); 3047 3048 if (retval != 0) 3049 break; 3050 3051 retval = sbuf_printf(sb, "\t<lun_type>%d</lun_type>\n", 3052 lun->be_lun->lun_type); 3053 3054 if (retval != 0) 3055 break; 3056 3057 if (lun->backend == NULL) { 3058 retval = sbuf_printf(sb, "</lun>\n"); 3059 if (retval != 0) 3060 break; 3061 continue; 3062 } 3063 3064 retval = sbuf_printf(sb, "\t<size>%ju</size>\n", 3065 (lun->be_lun->maxlba > 0) ? 3066 lun->be_lun->maxlba + 1 : 0); 3067 3068 if (retval != 0) 3069 break; 3070 3071 retval = sbuf_printf(sb, "\t<blocksize>%u</blocksize>\n", 3072 lun->be_lun->blocksize); 3073 3074 if (retval != 0) 3075 break; 3076 3077 retval = sbuf_printf(sb, "\t<serial_number>"); 3078 3079 if (retval != 0) 3080 break; 3081 3082 retval = ctl_sbuf_printf_esc(sb, 3083 lun->be_lun->serial_num, 3084 sizeof(lun->be_lun->serial_num)); 3085 3086 if (retval != 0) 3087 break; 3088 3089 retval = sbuf_printf(sb, "</serial_number>\n"); 3090 3091 if (retval != 0) 3092 break; 3093 3094 retval = sbuf_printf(sb, "\t<device_id>"); 3095 3096 if (retval != 0) 3097 break; 3098 3099 retval = ctl_sbuf_printf_esc(sb, 3100 lun->be_lun->device_id, 3101 sizeof(lun->be_lun->device_id)); 3102 3103 if (retval != 0) 3104 break; 3105 3106 retval = sbuf_printf(sb, "</device_id>\n"); 3107 3108 if (retval != 0) 3109 break; 3110 3111 if (lun->backend->lun_info != NULL) { 3112 retval = lun->backend->lun_info(lun->be_lun->be_lun, sb); 3113 if (retval != 0) 3114 break; 3115 } 3116 STAILQ_FOREACH(opt, &lun->be_lun->options, links) { 3117 retval = sbuf_printf(sb, "\t<%s>%s</%s>\n", 3118 opt->name, opt->value, opt->name); 3119 if (retval != 0) 3120 break; 3121 } 3122 3123 retval = sbuf_printf(sb, "</lun>\n"); 3124 3125 if (retval != 0) 3126 break; 3127 mtx_unlock(&lun->lun_lock); 3128 } 3129 if (lun != NULL) 3130 mtx_unlock(&lun->lun_lock); 3131 mtx_unlock(&softc->ctl_lock); 3132 3133 if ((retval != 0) 3134 || ((retval = sbuf_printf(sb, "</ctllunlist>\n")) != 0)) { 3135 retval = 0; 3136 sbuf_delete(sb); 3137 list->status = CTL_LUN_LIST_NEED_MORE_SPACE; 3138 snprintf(list->error_str, sizeof(list->error_str), 3139 "Out of space, %d bytes is too small", 3140 list->alloc_len); 3141 break; 3142 } 3143 3144 sbuf_finish(sb); 3145 3146 retval = copyout(sbuf_data(sb), list->lun_xml, 3147 sbuf_len(sb) + 1); 3148 3149 list->fill_len = sbuf_len(sb) + 1; 3150 list->status = CTL_LUN_LIST_OK; 3151 sbuf_delete(sb); 3152 break; 3153 } 3154 case CTL_ISCSI: { 3155 struct ctl_iscsi *ci; 3156 struct ctl_frontend *fe; 3157 3158 ci = (struct ctl_iscsi *)addr; 3159 3160 fe = ctl_frontend_find("iscsi"); 3161 if (fe == NULL) { 3162 ci->status = CTL_ISCSI_ERROR; 3163 snprintf(ci->error_str, sizeof(ci->error_str), 3164 "Frontend \"iscsi\" not found."); 3165 break; 3166 } 3167 3168 retval = fe->ioctl(dev, cmd, addr, flag, td); 3169 break; 3170 } 3171 case CTL_PORT_REQ: { 3172 struct ctl_req *req; 3173 struct ctl_frontend *fe; 3174 3175 req = (struct ctl_req *)addr; 3176 3177 fe = ctl_frontend_find(req->driver); 3178 if (fe == NULL) { 3179 req->status = CTL_LUN_ERROR; 3180 snprintf(req->error_str, sizeof(req->error_str), 3181 "Frontend \"%s\" not found.", req->driver); 3182 break; 3183 } 3184 if (req->num_args > 0) { 3185 req->kern_args = ctl_copyin_args(req->num_args, 3186 req->args, req->error_str, sizeof(req->error_str)); 3187 if (req->kern_args == NULL) { 3188 req->status = CTL_LUN_ERROR; 3189 break; 3190 } 3191 } 3192 3193 if (fe->ioctl) 3194 retval = fe->ioctl(dev, cmd, addr, flag, td); 3195 else 3196 retval = ENODEV; 3197 3198 if (req->num_args > 0) { 3199 ctl_copyout_args(req->num_args, req->kern_args); 3200 ctl_free_args(req->num_args, req->kern_args); 3201 } 3202 break; 3203 } 3204 case CTL_PORT_LIST: { 3205 struct sbuf *sb; 3206 struct ctl_port *port; 3207 struct ctl_lun_list *list; 3208 struct ctl_option *opt; 3209 int j; 3210 uint32_t plun; 3211 3212 list = (struct ctl_lun_list *)addr; 3213 3214 sb = sbuf_new(NULL, NULL, list->alloc_len, SBUF_FIXEDLEN); 3215 if (sb == NULL) { 3216 list->status = CTL_LUN_LIST_ERROR; 3217 snprintf(list->error_str, sizeof(list->error_str), 3218 "Unable to allocate %d bytes for LUN list", 3219 list->alloc_len); 3220 break; 3221 } 3222 3223 sbuf_printf(sb, "<ctlportlist>\n"); 3224 3225 mtx_lock(&softc->ctl_lock); 3226 STAILQ_FOREACH(port, &softc->port_list, links) { 3227 retval = sbuf_printf(sb, "<targ_port id=\"%ju\">\n", 3228 (uintmax_t)port->targ_port); 3229 3230 /* 3231 * Bail out as soon as we see that we've overfilled 3232 * the buffer. 3233 */ 3234 if (retval != 0) 3235 break; 3236 3237 retval = sbuf_printf(sb, "\t<frontend_type>%s" 3238 "</frontend_type>\n", port->frontend->name); 3239 if (retval != 0) 3240 break; 3241 3242 retval = sbuf_printf(sb, "\t<port_type>%d</port_type>\n", 3243 port->port_type); 3244 if (retval != 0) 3245 break; 3246 3247 retval = sbuf_printf(sb, "\t<online>%s</online>\n", 3248 (port->status & CTL_PORT_STATUS_ONLINE) ? "YES" : "NO"); 3249 if (retval != 0) 3250 break; 3251 3252 retval = sbuf_printf(sb, "\t<port_name>%s</port_name>\n", 3253 port->port_name); 3254 if (retval != 0) 3255 break; 3256 3257 retval = sbuf_printf(sb, "\t<physical_port>%d</physical_port>\n", 3258 port->physical_port); 3259 if (retval != 0) 3260 break; 3261 3262 retval = sbuf_printf(sb, "\t<virtual_port>%d</virtual_port>\n", 3263 port->virtual_port); 3264 if (retval != 0) 3265 break; 3266 3267 if (port->target_devid != NULL) { 3268 sbuf_printf(sb, "\t<target>"); 3269 ctl_id_sbuf(port->target_devid, sb); 3270 sbuf_printf(sb, "</target>\n"); 3271 } 3272 3273 if (port->port_devid != NULL) { 3274 sbuf_printf(sb, "\t<port>"); 3275 ctl_id_sbuf(port->port_devid, sb); 3276 sbuf_printf(sb, "</port>\n"); 3277 } 3278 3279 if (port->port_info != NULL) { 3280 retval = port->port_info(port->onoff_arg, sb); 3281 if (retval != 0) 3282 break; 3283 } 3284 STAILQ_FOREACH(opt, &port->options, links) { 3285 retval = sbuf_printf(sb, "\t<%s>%s</%s>\n", 3286 opt->name, opt->value, opt->name); 3287 if (retval != 0) 3288 break; 3289 } 3290 3291 if (port->lun_map != NULL) { 3292 sbuf_printf(sb, "\t<lun_map>on</lun_map>\n"); 3293 for (j = 0; j < port->lun_map_size; j++) { 3294 plun = ctl_lun_map_from_port(port, j); 3295 if (plun == UINT32_MAX) 3296 continue; 3297 sbuf_printf(sb, 3298 "\t<lun id=\"%u\">%u</lun>\n", 3299 j, plun); 3300 } 3301 } 3302 3303 for (j = 0; j < CTL_MAX_INIT_PER_PORT; j++) { 3304 if (port->wwpn_iid[j].in_use == 0 || 3305 (port->wwpn_iid[j].wwpn == 0 && 3306 port->wwpn_iid[j].name == NULL)) 3307 continue; 3308 3309 if (port->wwpn_iid[j].name != NULL) 3310 retval = sbuf_printf(sb, 3311 "\t<initiator id=\"%u\">%s</initiator>\n", 3312 j, port->wwpn_iid[j].name); 3313 else 3314 retval = sbuf_printf(sb, 3315 "\t<initiator id=\"%u\">naa.%08jx</initiator>\n", 3316 j, port->wwpn_iid[j].wwpn); 3317 if (retval != 0) 3318 break; 3319 } 3320 if (retval != 0) 3321 break; 3322 3323 retval = sbuf_printf(sb, "</targ_port>\n"); 3324 if (retval != 0) 3325 break; 3326 } 3327 mtx_unlock(&softc->ctl_lock); 3328 3329 if ((retval != 0) 3330 || ((retval = sbuf_printf(sb, "</ctlportlist>\n")) != 0)) { 3331 retval = 0; 3332 sbuf_delete(sb); 3333 list->status = CTL_LUN_LIST_NEED_MORE_SPACE; 3334 snprintf(list->error_str, sizeof(list->error_str), 3335 "Out of space, %d bytes is too small", 3336 list->alloc_len); 3337 break; 3338 } 3339 3340 sbuf_finish(sb); 3341 3342 retval = copyout(sbuf_data(sb), list->lun_xml, 3343 sbuf_len(sb) + 1); 3344 3345 list->fill_len = sbuf_len(sb) + 1; 3346 list->status = CTL_LUN_LIST_OK; 3347 sbuf_delete(sb); 3348 break; 3349 } 3350 case CTL_LUN_MAP: { 3351 struct ctl_lun_map *lm = (struct ctl_lun_map *)addr; 3352 struct ctl_port *port; 3353 3354 mtx_lock(&softc->ctl_lock); 3355 if (lm->port < softc->port_min || 3356 lm->port >= softc->port_max || 3357 (port = softc->ctl_ports[lm->port]) == NULL) { 3358 mtx_unlock(&softc->ctl_lock); 3359 return (ENXIO); 3360 } 3361 if (port->status & CTL_PORT_STATUS_ONLINE) { 3362 STAILQ_FOREACH(lun, &softc->lun_list, links) { 3363 if (ctl_lun_map_to_port(port, lun->lun) == 3364 UINT32_MAX) 3365 continue; 3366 mtx_lock(&lun->lun_lock); 3367 ctl_est_ua_port(lun, lm->port, -1, 3368 CTL_UA_LUN_CHANGE); 3369 mtx_unlock(&lun->lun_lock); 3370 } 3371 } 3372 mtx_unlock(&softc->ctl_lock); // XXX: port_enable sleeps 3373 if (lm->plun != UINT32_MAX) { 3374 if (lm->lun == UINT32_MAX) 3375 retval = ctl_lun_map_unset(port, lm->plun); 3376 else if (lm->lun < CTL_MAX_LUNS && 3377 softc->ctl_luns[lm->lun] != NULL) 3378 retval = ctl_lun_map_set(port, lm->plun, lm->lun); 3379 else 3380 return (ENXIO); 3381 } else { 3382 if (lm->lun == UINT32_MAX) 3383 retval = ctl_lun_map_deinit(port); 3384 else 3385 retval = ctl_lun_map_init(port); 3386 } 3387 if (port->status & CTL_PORT_STATUS_ONLINE) 3388 ctl_isc_announce_port(port); 3389 break; 3390 } 3391 default: { 3392 /* XXX KDM should we fix this? */ 3393#if 0 3394 struct ctl_backend_driver *backend; 3395 unsigned int type; 3396 int found; 3397 3398 found = 0; 3399 3400 /* 3401 * We encode the backend type as the ioctl type for backend 3402 * ioctls. So parse it out here, and then search for a 3403 * backend of this type. 3404 */ 3405 type = _IOC_TYPE(cmd); 3406 3407 STAILQ_FOREACH(backend, &softc->be_list, links) { 3408 if (backend->type == type) { 3409 found = 1; 3410 break; 3411 } 3412 } 3413 if (found == 0) { 3414 printf("ctl: unknown ioctl command %#lx or backend " 3415 "%d\n", cmd, type); 3416 retval = EINVAL; 3417 break; 3418 } 3419 retval = backend->ioctl(dev, cmd, addr, flag, td); 3420#endif 3421 retval = ENOTTY; 3422 break; 3423 } 3424 } 3425 return (retval); 3426} 3427 3428uint32_t 3429ctl_get_initindex(struct ctl_nexus *nexus) 3430{ 3431 return (nexus->initid + (nexus->targ_port * CTL_MAX_INIT_PER_PORT)); 3432} 3433 3434int 3435ctl_lun_map_init(struct ctl_port *port) 3436{ 3437 struct ctl_softc *softc = port->ctl_softc; 3438 struct ctl_lun *lun; 3439 int size = ctl_lun_map_size; 3440 uint32_t i; 3441 3442 if (port->lun_map == NULL || port->lun_map_size < size) { 3443 port->lun_map_size = 0; 3444 free(port->lun_map, M_CTL); 3445 port->lun_map = malloc(size * sizeof(uint32_t), 3446 M_CTL, M_NOWAIT); 3447 } 3448 if (port->lun_map == NULL) 3449 return (ENOMEM); 3450 for (i = 0; i < size; i++) 3451 port->lun_map[i] = UINT32_MAX; 3452 port->lun_map_size = size; 3453 if (port->status & CTL_PORT_STATUS_ONLINE) { 3454 if (port->lun_disable != NULL) { 3455 STAILQ_FOREACH(lun, &softc->lun_list, links) 3456 port->lun_disable(port->targ_lun_arg, lun->lun); 3457 } 3458 ctl_isc_announce_port(port); 3459 } 3460 return (0); 3461} 3462 3463int 3464ctl_lun_map_deinit(struct ctl_port *port) 3465{ 3466 struct ctl_softc *softc = port->ctl_softc; 3467 struct ctl_lun *lun; 3468 3469 if (port->lun_map == NULL) 3470 return (0); 3471 port->lun_map_size = 0; 3472 free(port->lun_map, M_CTL); 3473 port->lun_map = NULL; 3474 if (port->status & CTL_PORT_STATUS_ONLINE) { 3475 if (port->lun_enable != NULL) { 3476 STAILQ_FOREACH(lun, &softc->lun_list, links) 3477 port->lun_enable(port->targ_lun_arg, lun->lun); 3478 } 3479 ctl_isc_announce_port(port); 3480 } 3481 return (0); 3482} 3483 3484int 3485ctl_lun_map_set(struct ctl_port *port, uint32_t plun, uint32_t glun) 3486{ 3487 int status; 3488 uint32_t old; 3489 3490 if (port->lun_map == NULL) { 3491 status = ctl_lun_map_init(port); 3492 if (status != 0) 3493 return (status); 3494 } 3495 if (plun >= port->lun_map_size) 3496 return (EINVAL); 3497 old = port->lun_map[plun]; 3498 port->lun_map[plun] = glun; 3499 if ((port->status & CTL_PORT_STATUS_ONLINE) && old == UINT32_MAX) { 3500 if (port->lun_enable != NULL) 3501 port->lun_enable(port->targ_lun_arg, plun); 3502 ctl_isc_announce_port(port); 3503 } 3504 return (0); 3505} 3506 3507int 3508ctl_lun_map_unset(struct ctl_port *port, uint32_t plun) 3509{ 3510 uint32_t old; 3511 3512 if (port->lun_map == NULL || plun >= port->lun_map_size) 3513 return (0); 3514 old = port->lun_map[plun]; 3515 port->lun_map[plun] = UINT32_MAX; 3516 if ((port->status & CTL_PORT_STATUS_ONLINE) && old != UINT32_MAX) { 3517 if (port->lun_disable != NULL) 3518 port->lun_disable(port->targ_lun_arg, plun); 3519 ctl_isc_announce_port(port); 3520 } 3521 return (0); 3522} 3523 3524uint32_t 3525ctl_lun_map_from_port(struct ctl_port *port, uint32_t lun_id) 3526{ 3527 3528 if (port == NULL) 3529 return (UINT32_MAX); 3530 if (port->lun_map == NULL) 3531 return (lun_id); 3532 if (lun_id > port->lun_map_size) 3533 return (UINT32_MAX); 3534 return (port->lun_map[lun_id]); 3535} 3536 3537uint32_t 3538ctl_lun_map_to_port(struct ctl_port *port, uint32_t lun_id) 3539{ 3540 uint32_t i; 3541 3542 if (port == NULL) 3543 return (UINT32_MAX); 3544 if (port->lun_map == NULL) 3545 return (lun_id); 3546 for (i = 0; i < port->lun_map_size; i++) { 3547 if (port->lun_map[i] == lun_id) 3548 return (i); 3549 } 3550 return (UINT32_MAX); 3551} 3552 3553uint32_t 3554ctl_decode_lun(uint64_t encoded) 3555{ 3556 uint8_t lun[8]; 3557 uint32_t result = 0xffffffff; 3558 3559 be64enc(lun, encoded); 3560 switch (lun[0] & RPL_LUNDATA_ATYP_MASK) { 3561 case RPL_LUNDATA_ATYP_PERIPH: 3562 if ((lun[0] & 0x3f) == 0 && lun[2] == 0 && lun[3] == 0 && 3563 lun[4] == 0 && lun[5] == 0 && lun[6] == 0 && lun[7] == 0) 3564 result = lun[1]; 3565 break; 3566 case RPL_LUNDATA_ATYP_FLAT: 3567 if (lun[2] == 0 && lun[3] == 0 && lun[4] == 0 && lun[5] == 0 && 3568 lun[6] == 0 && lun[7] == 0) 3569 result = ((lun[0] & 0x3f) << 8) + lun[1]; 3570 break; 3571 case RPL_LUNDATA_ATYP_EXTLUN: 3572 switch (lun[0] & RPL_LUNDATA_EXT_EAM_MASK) { 3573 case 0x02: 3574 switch (lun[0] & RPL_LUNDATA_EXT_LEN_MASK) { 3575 case 0x00: 3576 result = lun[1]; 3577 break; 3578 case 0x10: 3579 result = (lun[1] << 16) + (lun[2] << 8) + 3580 lun[3]; 3581 break; 3582 case 0x20: 3583 if (lun[1] == 0 && lun[6] == 0 && lun[7] == 0) 3584 result = (lun[2] << 24) + 3585 (lun[3] << 16) + (lun[4] << 8) + 3586 lun[5]; 3587 break; 3588 } 3589 break; 3590 case RPL_LUNDATA_EXT_EAM_NOT_SPEC: 3591 result = 0xffffffff; 3592 break; 3593 } 3594 break; 3595 } 3596 return (result); 3597} 3598 3599uint64_t 3600ctl_encode_lun(uint32_t decoded) 3601{ 3602 uint64_t l = decoded; 3603 3604 if (l <= 0xff) 3605 return (((uint64_t)RPL_LUNDATA_ATYP_PERIPH << 56) | (l << 48)); 3606 if (l <= 0x3fff) 3607 return (((uint64_t)RPL_LUNDATA_ATYP_FLAT << 56) | (l << 48)); 3608 if (l <= 0xffffff) 3609 return (((uint64_t)(RPL_LUNDATA_ATYP_EXTLUN | 0x12) << 56) | 3610 (l << 32)); 3611 return ((((uint64_t)RPL_LUNDATA_ATYP_EXTLUN | 0x22) << 56) | (l << 16)); 3612} 3613 3614int 3615ctl_ffz(uint32_t *mask, uint32_t first, uint32_t last) 3616{ 3617 int i; 3618 3619 for (i = first; i < last; i++) { 3620 if ((mask[i / 32] & (1 << (i % 32))) == 0) 3621 return (i); 3622 } 3623 return (-1); 3624} 3625 3626int 3627ctl_set_mask(uint32_t *mask, uint32_t bit) 3628{ 3629 uint32_t chunk, piece; 3630 3631 chunk = bit >> 5; 3632 piece = bit % (sizeof(uint32_t) * 8); 3633 3634 if ((mask[chunk] & (1 << piece)) != 0) 3635 return (-1); 3636 else 3637 mask[chunk] |= (1 << piece); 3638 3639 return (0); 3640} 3641 3642int 3643ctl_clear_mask(uint32_t *mask, uint32_t bit) 3644{ 3645 uint32_t chunk, piece; 3646 3647 chunk = bit >> 5; 3648 piece = bit % (sizeof(uint32_t) * 8); 3649 3650 if ((mask[chunk] & (1 << piece)) == 0) 3651 return (-1); 3652 else 3653 mask[chunk] &= ~(1 << piece); 3654 3655 return (0); 3656} 3657 3658int 3659ctl_is_set(uint32_t *mask, uint32_t bit) 3660{ 3661 uint32_t chunk, piece; 3662 3663 chunk = bit >> 5; 3664 piece = bit % (sizeof(uint32_t) * 8); 3665 3666 if ((mask[chunk] & (1 << piece)) == 0) 3667 return (0); 3668 else 3669 return (1); 3670} 3671 3672static uint64_t 3673ctl_get_prkey(struct ctl_lun *lun, uint32_t residx) 3674{ 3675 uint64_t *t; 3676 3677 t = lun->pr_keys[residx/CTL_MAX_INIT_PER_PORT]; 3678 if (t == NULL) 3679 return (0); 3680 return (t[residx % CTL_MAX_INIT_PER_PORT]); 3681} 3682 3683static void 3684ctl_clr_prkey(struct ctl_lun *lun, uint32_t residx) 3685{ 3686 uint64_t *t; 3687 3688 t = lun->pr_keys[residx/CTL_MAX_INIT_PER_PORT]; 3689 if (t == NULL) 3690 return; 3691 t[residx % CTL_MAX_INIT_PER_PORT] = 0; 3692} 3693 3694static void 3695ctl_alloc_prkey(struct ctl_lun *lun, uint32_t residx) 3696{ 3697 uint64_t *p; 3698 u_int i; 3699 3700 i = residx/CTL_MAX_INIT_PER_PORT; 3701 if (lun->pr_keys[i] != NULL) 3702 return; 3703 mtx_unlock(&lun->lun_lock); 3704 p = malloc(sizeof(uint64_t) * CTL_MAX_INIT_PER_PORT, M_CTL, 3705 M_WAITOK | M_ZERO); 3706 mtx_lock(&lun->lun_lock); 3707 if (lun->pr_keys[i] == NULL) 3708 lun->pr_keys[i] = p; 3709 else 3710 free(p, M_CTL); 3711} 3712 3713static void 3714ctl_set_prkey(struct ctl_lun *lun, uint32_t residx, uint64_t key) 3715{ 3716 uint64_t *t; 3717 3718 t = lun->pr_keys[residx/CTL_MAX_INIT_PER_PORT]; 3719 KASSERT(t != NULL, ("prkey %d is not allocated", residx)); 3720 t[residx % CTL_MAX_INIT_PER_PORT] = key; 3721} 3722 3723/* 3724 * ctl_softc, pool_name, total_ctl_io are passed in. 3725 * npool is passed out. 3726 */ 3727int 3728ctl_pool_create(struct ctl_softc *ctl_softc, const char *pool_name, 3729 uint32_t total_ctl_io, void **npool) 3730{ 3731 struct ctl_io_pool *pool; 3732 3733 pool = (struct ctl_io_pool *)malloc(sizeof(*pool), M_CTL, 3734 M_NOWAIT | M_ZERO); 3735 if (pool == NULL) 3736 return (ENOMEM); 3737 3738 snprintf(pool->name, sizeof(pool->name), "CTL IO %s", pool_name); 3739 pool->ctl_softc = ctl_softc; 3740#ifdef IO_POOLS 3741 pool->zone = uma_zsecond_create(pool->name, NULL, 3742 NULL, NULL, NULL, ctl_softc->io_zone); 3743 /* uma_prealloc(pool->zone, total_ctl_io); */ 3744#else 3745 pool->zone = ctl_softc->io_zone; 3746#endif 3747 3748 *npool = pool; 3749 return (0); 3750} 3751 3752void 3753ctl_pool_free(struct ctl_io_pool *pool) 3754{ 3755 3756 if (pool == NULL) 3757 return; 3758 3759#ifdef IO_POOLS 3760 uma_zdestroy(pool->zone); 3761#endif 3762 free(pool, M_CTL); 3763} 3764 3765union ctl_io * 3766ctl_alloc_io(void *pool_ref) 3767{ 3768 struct ctl_io_pool *pool = (struct ctl_io_pool *)pool_ref; 3769 union ctl_io *io; 3770 3771 io = uma_zalloc(pool->zone, M_WAITOK); 3772 if (io != NULL) { 3773 io->io_hdr.pool = pool_ref; 3774 CTL_SOFTC(io) = pool->ctl_softc; 3775 } 3776 return (io); 3777} 3778 3779union ctl_io * 3780ctl_alloc_io_nowait(void *pool_ref) 3781{ 3782 struct ctl_io_pool *pool = (struct ctl_io_pool *)pool_ref; 3783 union ctl_io *io; 3784 3785 io = uma_zalloc(pool->zone, M_NOWAIT); 3786 if (io != NULL) { 3787 io->io_hdr.pool = pool_ref; 3788 CTL_SOFTC(io) = pool->ctl_softc; 3789 } 3790 return (io); 3791} 3792 3793void 3794ctl_free_io(union ctl_io *io) 3795{ 3796 struct ctl_io_pool *pool; 3797 3798 if (io == NULL) 3799 return; 3800 3801 pool = (struct ctl_io_pool *)io->io_hdr.pool; 3802 uma_zfree(pool->zone, io); 3803} 3804 3805void 3806ctl_zero_io(union ctl_io *io) 3807{ 3808 struct ctl_io_pool *pool; 3809 3810 if (io == NULL) 3811 return; 3812 3813 /* 3814 * May need to preserve linked list pointers at some point too. 3815 */ 3816 pool = io->io_hdr.pool; 3817 memset(io, 0, sizeof(*io)); 3818 io->io_hdr.pool = pool; 3819 CTL_SOFTC(io) = pool->ctl_softc; 3820} 3821 3822int 3823ctl_expand_number(const char *buf, uint64_t *num) 3824{ 3825 char *endptr; 3826 uint64_t number; 3827 unsigned shift; 3828 3829 number = strtoq(buf, &endptr, 0); 3830 3831 switch (tolower((unsigned char)*endptr)) { 3832 case 'e': 3833 shift = 60; 3834 break; 3835 case 'p': 3836 shift = 50; 3837 break; 3838 case 't': 3839 shift = 40; 3840 break; 3841 case 'g': 3842 shift = 30; 3843 break; 3844 case 'm': 3845 shift = 20; 3846 break; 3847 case 'k': 3848 shift = 10; 3849 break; 3850 case 'b': 3851 case '\0': /* No unit. */ 3852 *num = number; 3853 return (0); 3854 default: 3855 /* Unrecognized unit. */ 3856 return (-1); 3857 } 3858 3859 if ((number << shift) >> shift != number) { 3860 /* Overflow */ 3861 return (-1); 3862 } 3863 *num = number << shift; 3864 return (0); 3865} 3866 3867 3868/* 3869 * This routine could be used in the future to load default and/or saved 3870 * mode page parameters for a particuar lun. 3871 */ 3872static int 3873ctl_init_page_index(struct ctl_lun *lun) 3874{ 3875 int i, page_code; 3876 struct ctl_page_index *page_index; 3877 const char *value; 3878 uint64_t ival; 3879 3880 memcpy(&lun->mode_pages.index, page_index_template, 3881 sizeof(page_index_template)); 3882 3883 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 3884 3885 page_index = &lun->mode_pages.index[i]; 3886 if (lun->be_lun->lun_type == T_DIRECT && 3887 (page_index->page_flags & CTL_PAGE_FLAG_DIRECT) == 0) 3888 continue; 3889 if (lun->be_lun->lun_type == T_PROCESSOR && 3890 (page_index->page_flags & CTL_PAGE_FLAG_PROC) == 0) 3891 continue; 3892 if (lun->be_lun->lun_type == T_CDROM && 3893 (page_index->page_flags & CTL_PAGE_FLAG_CDROM) == 0) 3894 continue; 3895 3896 page_code = page_index->page_code & SMPH_PC_MASK; 3897 switch (page_code) { 3898 case SMS_RW_ERROR_RECOVERY_PAGE: { 3899 KASSERT(page_index->subpage == SMS_SUBPAGE_PAGE_0, 3900 ("subpage %#x for page %#x is incorrect!", 3901 page_index->subpage, page_code)); 3902 memcpy(&lun->mode_pages.rw_er_page[CTL_PAGE_CURRENT], 3903 &rw_er_page_default, 3904 sizeof(rw_er_page_default)); 3905 memcpy(&lun->mode_pages.rw_er_page[CTL_PAGE_CHANGEABLE], 3906 &rw_er_page_changeable, 3907 sizeof(rw_er_page_changeable)); 3908 memcpy(&lun->mode_pages.rw_er_page[CTL_PAGE_DEFAULT], 3909 &rw_er_page_default, 3910 sizeof(rw_er_page_default)); 3911 memcpy(&lun->mode_pages.rw_er_page[CTL_PAGE_SAVED], 3912 &rw_er_page_default, 3913 sizeof(rw_er_page_default)); 3914 page_index->page_data = 3915 (uint8_t *)lun->mode_pages.rw_er_page; 3916 break; 3917 } 3918 case SMS_FORMAT_DEVICE_PAGE: { 3919 struct scsi_format_page *format_page; 3920 3921 KASSERT(page_index->subpage == SMS_SUBPAGE_PAGE_0, 3922 ("subpage %#x for page %#x is incorrect!", 3923 page_index->subpage, page_code)); 3924 3925 /* 3926 * Sectors per track are set above. Bytes per 3927 * sector need to be set here on a per-LUN basis. 3928 */ 3929 memcpy(&lun->mode_pages.format_page[CTL_PAGE_CURRENT], 3930 &format_page_default, 3931 sizeof(format_page_default)); 3932 memcpy(&lun->mode_pages.format_page[ 3933 CTL_PAGE_CHANGEABLE], &format_page_changeable, 3934 sizeof(format_page_changeable)); 3935 memcpy(&lun->mode_pages.format_page[CTL_PAGE_DEFAULT], 3936 &format_page_default, 3937 sizeof(format_page_default)); 3938 memcpy(&lun->mode_pages.format_page[CTL_PAGE_SAVED], 3939 &format_page_default, 3940 sizeof(format_page_default)); 3941 3942 format_page = &lun->mode_pages.format_page[ 3943 CTL_PAGE_CURRENT]; 3944 scsi_ulto2b(lun->be_lun->blocksize, 3945 format_page->bytes_per_sector); 3946 3947 format_page = &lun->mode_pages.format_page[ 3948 CTL_PAGE_DEFAULT]; 3949 scsi_ulto2b(lun->be_lun->blocksize, 3950 format_page->bytes_per_sector); 3951 3952 format_page = &lun->mode_pages.format_page[ 3953 CTL_PAGE_SAVED]; 3954 scsi_ulto2b(lun->be_lun->blocksize, 3955 format_page->bytes_per_sector); 3956 3957 page_index->page_data = 3958 (uint8_t *)lun->mode_pages.format_page; 3959 break; 3960 } 3961 case SMS_RIGID_DISK_PAGE: { 3962 struct scsi_rigid_disk_page *rigid_disk_page; 3963 uint32_t sectors_per_cylinder; 3964 uint64_t cylinders; 3965#ifndef __XSCALE__ 3966 int shift; 3967#endif /* !__XSCALE__ */ 3968 3969 KASSERT(page_index->subpage == SMS_SUBPAGE_PAGE_0, 3970 ("subpage %#x for page %#x is incorrect!", 3971 page_index->subpage, page_code)); 3972 3973 /* 3974 * Rotation rate and sectors per track are set 3975 * above. We calculate the cylinders here based on 3976 * capacity. Due to the number of heads and 3977 * sectors per track we're using, smaller arrays 3978 * may turn out to have 0 cylinders. Linux and 3979 * FreeBSD don't pay attention to these mode pages 3980 * to figure out capacity, but Solaris does. It 3981 * seems to deal with 0 cylinders just fine, and 3982 * works out a fake geometry based on the capacity. 3983 */ 3984 memcpy(&lun->mode_pages.rigid_disk_page[ 3985 CTL_PAGE_DEFAULT], &rigid_disk_page_default, 3986 sizeof(rigid_disk_page_default)); 3987 memcpy(&lun->mode_pages.rigid_disk_page[ 3988 CTL_PAGE_CHANGEABLE],&rigid_disk_page_changeable, 3989 sizeof(rigid_disk_page_changeable)); 3990 3991 sectors_per_cylinder = CTL_DEFAULT_SECTORS_PER_TRACK * 3992 CTL_DEFAULT_HEADS; 3993 3994 /* 3995 * The divide method here will be more accurate, 3996 * probably, but results in floating point being 3997 * used in the kernel on i386 (__udivdi3()). On the 3998 * XScale, though, __udivdi3() is implemented in 3999 * software. 4000 * 4001 * The shift method for cylinder calculation is 4002 * accurate if sectors_per_cylinder is a power of 4003 * 2. Otherwise it might be slightly off -- you 4004 * might have a bit of a truncation problem. 4005 */ 4006#ifdef __XSCALE__ 4007 cylinders = (lun->be_lun->maxlba + 1) / 4008 sectors_per_cylinder; 4009#else 4010 for (shift = 31; shift > 0; shift--) { 4011 if (sectors_per_cylinder & (1 << shift)) 4012 break; 4013 } 4014 cylinders = (lun->be_lun->maxlba + 1) >> shift; 4015#endif 4016 4017 /* 4018 * We've basically got 3 bytes, or 24 bits for the 4019 * cylinder size in the mode page. If we're over, 4020 * just round down to 2^24. 4021 */ 4022 if (cylinders > 0xffffff) 4023 cylinders = 0xffffff; 4024 4025 rigid_disk_page = &lun->mode_pages.rigid_disk_page[ 4026 CTL_PAGE_DEFAULT]; 4027 scsi_ulto3b(cylinders, rigid_disk_page->cylinders); 4028 4029 if ((value = ctl_get_opt(&lun->be_lun->options, 4030 "rpm")) != NULL) { 4031 scsi_ulto2b(strtol(value, NULL, 0), 4032 rigid_disk_page->rotation_rate); 4033 } 4034 4035 memcpy(&lun->mode_pages.rigid_disk_page[CTL_PAGE_CURRENT], 4036 &lun->mode_pages.rigid_disk_page[CTL_PAGE_DEFAULT], 4037 sizeof(rigid_disk_page_default)); 4038 memcpy(&lun->mode_pages.rigid_disk_page[CTL_PAGE_SAVED], 4039 &lun->mode_pages.rigid_disk_page[CTL_PAGE_DEFAULT], 4040 sizeof(rigid_disk_page_default)); 4041 4042 page_index->page_data = 4043 (uint8_t *)lun->mode_pages.rigid_disk_page; 4044 break; 4045 } 4046 case SMS_VERIFY_ERROR_RECOVERY_PAGE: { 4047 KASSERT(page_index->subpage == SMS_SUBPAGE_PAGE_0, 4048 ("subpage %#x for page %#x is incorrect!", 4049 page_index->subpage, page_code)); 4050 memcpy(&lun->mode_pages.verify_er_page[CTL_PAGE_CURRENT], 4051 &verify_er_page_default, 4052 sizeof(verify_er_page_default)); 4053 memcpy(&lun->mode_pages.verify_er_page[CTL_PAGE_CHANGEABLE], 4054 &verify_er_page_changeable, 4055 sizeof(verify_er_page_changeable)); 4056 memcpy(&lun->mode_pages.verify_er_page[CTL_PAGE_DEFAULT], 4057 &verify_er_page_default, 4058 sizeof(verify_er_page_default)); 4059 memcpy(&lun->mode_pages.verify_er_page[CTL_PAGE_SAVED], 4060 &verify_er_page_default, 4061 sizeof(verify_er_page_default)); 4062 page_index->page_data = 4063 (uint8_t *)lun->mode_pages.verify_er_page; 4064 break; 4065 } 4066 case SMS_CACHING_PAGE: { 4067 struct scsi_caching_page *caching_page; 4068 4069 KASSERT(page_index->subpage == SMS_SUBPAGE_PAGE_0, 4070 ("subpage %#x for page %#x is incorrect!", 4071 page_index->subpage, page_code)); 4072 memcpy(&lun->mode_pages.caching_page[CTL_PAGE_DEFAULT], 4073 &caching_page_default, 4074 sizeof(caching_page_default)); 4075 memcpy(&lun->mode_pages.caching_page[ 4076 CTL_PAGE_CHANGEABLE], &caching_page_changeable, 4077 sizeof(caching_page_changeable)); 4078 memcpy(&lun->mode_pages.caching_page[CTL_PAGE_SAVED], 4079 &caching_page_default, 4080 sizeof(caching_page_default)); 4081 caching_page = &lun->mode_pages.caching_page[ 4082 CTL_PAGE_SAVED]; 4083 value = ctl_get_opt(&lun->be_lun->options, "writecache"); 4084 if (value != NULL && strcmp(value, "off") == 0) 4085 caching_page->flags1 &= ~SCP_WCE; 4086 value = ctl_get_opt(&lun->be_lun->options, "readcache"); 4087 if (value != NULL && strcmp(value, "off") == 0) 4088 caching_page->flags1 |= SCP_RCD; 4089 memcpy(&lun->mode_pages.caching_page[CTL_PAGE_CURRENT], 4090 &lun->mode_pages.caching_page[CTL_PAGE_SAVED], 4091 sizeof(caching_page_default)); 4092 page_index->page_data = 4093 (uint8_t *)lun->mode_pages.caching_page; 4094 break; 4095 } 4096 case SMS_CONTROL_MODE_PAGE: { 4097 switch (page_index->subpage) { 4098 case SMS_SUBPAGE_PAGE_0: { 4099 struct scsi_control_page *control_page; 4100 4101 memcpy(&lun->mode_pages.control_page[ 4102 CTL_PAGE_DEFAULT], 4103 &control_page_default, 4104 sizeof(control_page_default)); 4105 memcpy(&lun->mode_pages.control_page[ 4106 CTL_PAGE_CHANGEABLE], 4107 &control_page_changeable, 4108 sizeof(control_page_changeable)); 4109 memcpy(&lun->mode_pages.control_page[ 4110 CTL_PAGE_SAVED], 4111 &control_page_default, 4112 sizeof(control_page_default)); 4113 control_page = &lun->mode_pages.control_page[ 4114 CTL_PAGE_SAVED]; 4115 value = ctl_get_opt(&lun->be_lun->options, 4116 "reordering"); 4117 if (value != NULL && 4118 strcmp(value, "unrestricted") == 0) { 4119 control_page->queue_flags &= 4120 ~SCP_QUEUE_ALG_MASK; 4121 control_page->queue_flags |= 4122 SCP_QUEUE_ALG_UNRESTRICTED; 4123 } 4124 memcpy(&lun->mode_pages.control_page[ 4125 CTL_PAGE_CURRENT], 4126 &lun->mode_pages.control_page[ 4127 CTL_PAGE_SAVED], 4128 sizeof(control_page_default)); 4129 page_index->page_data = 4130 (uint8_t *)lun->mode_pages.control_page; 4131 break; 4132 } 4133 case 0x01: 4134 memcpy(&lun->mode_pages.control_ext_page[ 4135 CTL_PAGE_DEFAULT], 4136 &control_ext_page_default, 4137 sizeof(control_ext_page_default)); 4138 memcpy(&lun->mode_pages.control_ext_page[ 4139 CTL_PAGE_CHANGEABLE], 4140 &control_ext_page_changeable, 4141 sizeof(control_ext_page_changeable)); 4142 memcpy(&lun->mode_pages.control_ext_page[ 4143 CTL_PAGE_SAVED], 4144 &control_ext_page_default, 4145 sizeof(control_ext_page_default)); 4146 memcpy(&lun->mode_pages.control_ext_page[ 4147 CTL_PAGE_CURRENT], 4148 &lun->mode_pages.control_ext_page[ 4149 CTL_PAGE_SAVED], 4150 sizeof(control_ext_page_default)); 4151 page_index->page_data = 4152 (uint8_t *)lun->mode_pages.control_ext_page; 4153 break; 4154 default: 4155 panic("subpage %#x for page %#x is incorrect!", 4156 page_index->subpage, page_code); 4157 } 4158 break; 4159 } 4160 case SMS_INFO_EXCEPTIONS_PAGE: { 4161 switch (page_index->subpage) { 4162 case SMS_SUBPAGE_PAGE_0: 4163 memcpy(&lun->mode_pages.ie_page[CTL_PAGE_CURRENT], 4164 &ie_page_default, 4165 sizeof(ie_page_default)); 4166 memcpy(&lun->mode_pages.ie_page[ 4167 CTL_PAGE_CHANGEABLE], &ie_page_changeable, 4168 sizeof(ie_page_changeable)); 4169 memcpy(&lun->mode_pages.ie_page[CTL_PAGE_DEFAULT], 4170 &ie_page_default, 4171 sizeof(ie_page_default)); 4172 memcpy(&lun->mode_pages.ie_page[CTL_PAGE_SAVED], 4173 &ie_page_default, 4174 sizeof(ie_page_default)); 4175 page_index->page_data = 4176 (uint8_t *)lun->mode_pages.ie_page; 4177 break; 4178 case 0x02: { 4179 struct ctl_logical_block_provisioning_page *page; 4180 4181 memcpy(&lun->mode_pages.lbp_page[CTL_PAGE_DEFAULT], 4182 &lbp_page_default, 4183 sizeof(lbp_page_default)); 4184 memcpy(&lun->mode_pages.lbp_page[ 4185 CTL_PAGE_CHANGEABLE], &lbp_page_changeable, 4186 sizeof(lbp_page_changeable)); 4187 memcpy(&lun->mode_pages.lbp_page[CTL_PAGE_SAVED], 4188 &lbp_page_default, 4189 sizeof(lbp_page_default)); 4190 page = &lun->mode_pages.lbp_page[CTL_PAGE_SAVED]; 4191 value = ctl_get_opt(&lun->be_lun->options, 4192 "avail-threshold"); 4193 if (value != NULL && 4194 ctl_expand_number(value, &ival) == 0) { 4195 page->descr[0].flags |= SLBPPD_ENABLED | 4196 SLBPPD_ARMING_DEC; 4197 if (lun->be_lun->blocksize) 4198 ival /= lun->be_lun->blocksize; 4199 else 4200 ival /= 512; 4201 scsi_ulto4b(ival >> CTL_LBP_EXPONENT, 4202 page->descr[0].count); 4203 } 4204 value = ctl_get_opt(&lun->be_lun->options, 4205 "used-threshold"); 4206 if (value != NULL && 4207 ctl_expand_number(value, &ival) == 0) { 4208 page->descr[1].flags |= SLBPPD_ENABLED | 4209 SLBPPD_ARMING_INC; 4210 if (lun->be_lun->blocksize) 4211 ival /= lun->be_lun->blocksize; 4212 else 4213 ival /= 512; 4214 scsi_ulto4b(ival >> CTL_LBP_EXPONENT, 4215 page->descr[1].count); 4216 } 4217 value = ctl_get_opt(&lun->be_lun->options, 4218 "pool-avail-threshold"); 4219 if (value != NULL && 4220 ctl_expand_number(value, &ival) == 0) { 4221 page->descr[2].flags |= SLBPPD_ENABLED | 4222 SLBPPD_ARMING_DEC; 4223 if (lun->be_lun->blocksize) 4224 ival /= lun->be_lun->blocksize; 4225 else 4226 ival /= 512; 4227 scsi_ulto4b(ival >> CTL_LBP_EXPONENT, 4228 page->descr[2].count); 4229 } 4230 value = ctl_get_opt(&lun->be_lun->options, 4231 "pool-used-threshold"); 4232 if (value != NULL && 4233 ctl_expand_number(value, &ival) == 0) { 4234 page->descr[3].flags |= SLBPPD_ENABLED | 4235 SLBPPD_ARMING_INC; 4236 if (lun->be_lun->blocksize) 4237 ival /= lun->be_lun->blocksize; 4238 else 4239 ival /= 512; 4240 scsi_ulto4b(ival >> CTL_LBP_EXPONENT, 4241 page->descr[3].count); 4242 } 4243 memcpy(&lun->mode_pages.lbp_page[CTL_PAGE_CURRENT], 4244 &lun->mode_pages.lbp_page[CTL_PAGE_SAVED], 4245 sizeof(lbp_page_default)); 4246 page_index->page_data = 4247 (uint8_t *)lun->mode_pages.lbp_page; 4248 break; 4249 } 4250 default: 4251 panic("subpage %#x for page %#x is incorrect!", 4252 page_index->subpage, page_code); 4253 } 4254 break; 4255 } 4256 case SMS_CDDVD_CAPS_PAGE:{ 4257 KASSERT(page_index->subpage == SMS_SUBPAGE_PAGE_0, 4258 ("subpage %#x for page %#x is incorrect!", 4259 page_index->subpage, page_code)); 4260 memcpy(&lun->mode_pages.cddvd_page[CTL_PAGE_DEFAULT], 4261 &cddvd_page_default, 4262 sizeof(cddvd_page_default)); 4263 memcpy(&lun->mode_pages.cddvd_page[ 4264 CTL_PAGE_CHANGEABLE], &cddvd_page_changeable, 4265 sizeof(cddvd_page_changeable)); 4266 memcpy(&lun->mode_pages.cddvd_page[CTL_PAGE_SAVED], 4267 &cddvd_page_default, 4268 sizeof(cddvd_page_default)); 4269 memcpy(&lun->mode_pages.cddvd_page[CTL_PAGE_CURRENT], 4270 &lun->mode_pages.cddvd_page[CTL_PAGE_SAVED], 4271 sizeof(cddvd_page_default)); 4272 page_index->page_data = 4273 (uint8_t *)lun->mode_pages.cddvd_page; 4274 break; 4275 } 4276 default: 4277 panic("invalid page code value %#x", page_code); 4278 } 4279 } 4280 4281 return (CTL_RETVAL_COMPLETE); 4282} 4283 4284static int 4285ctl_init_log_page_index(struct ctl_lun *lun) 4286{ 4287 struct ctl_page_index *page_index; 4288 int i, j, k, prev; 4289 4290 memcpy(&lun->log_pages.index, log_page_index_template, 4291 sizeof(log_page_index_template)); 4292 4293 prev = -1; 4294 for (i = 0, j = 0, k = 0; i < CTL_NUM_LOG_PAGES; i++) { 4295 4296 page_index = &lun->log_pages.index[i]; 4297 if (lun->be_lun->lun_type == T_DIRECT && 4298 (page_index->page_flags & CTL_PAGE_FLAG_DIRECT) == 0) 4299 continue; 4300 if (lun->be_lun->lun_type == T_PROCESSOR && 4301 (page_index->page_flags & CTL_PAGE_FLAG_PROC) == 0) 4302 continue; 4303 if (lun->be_lun->lun_type == T_CDROM && 4304 (page_index->page_flags & CTL_PAGE_FLAG_CDROM) == 0) 4305 continue; 4306 4307 if (page_index->page_code == SLS_LOGICAL_BLOCK_PROVISIONING && 4308 lun->backend->lun_attr == NULL) 4309 continue; 4310 4311 if (page_index->page_code != prev) { 4312 lun->log_pages.pages_page[j] = page_index->page_code; 4313 prev = page_index->page_code; 4314 j++; 4315 } 4316 lun->log_pages.subpages_page[k*2] = page_index->page_code; 4317 lun->log_pages.subpages_page[k*2+1] = page_index->subpage; 4318 k++; 4319 } 4320 lun->log_pages.index[0].page_data = &lun->log_pages.pages_page[0]; 4321 lun->log_pages.index[0].page_len = j; 4322 lun->log_pages.index[1].page_data = &lun->log_pages.subpages_page[0]; 4323 lun->log_pages.index[1].page_len = k * 2; 4324 lun->log_pages.index[2].page_data = &lun->log_pages.lbp_page[0]; 4325 lun->log_pages.index[2].page_len = 12*CTL_NUM_LBP_PARAMS; 4326 lun->log_pages.index[3].page_data = (uint8_t *)&lun->log_pages.stat_page; 4327 lun->log_pages.index[3].page_len = sizeof(lun->log_pages.stat_page); 4328 lun->log_pages.index[4].page_data = (uint8_t *)&lun->log_pages.ie_page; 4329 lun->log_pages.index[4].page_len = sizeof(lun->log_pages.ie_page); 4330 4331 return (CTL_RETVAL_COMPLETE); 4332} 4333 4334static int 4335hex2bin(const char *str, uint8_t *buf, int buf_size) 4336{ 4337 int i; 4338 u_char c; 4339 4340 memset(buf, 0, buf_size); 4341 while (isspace(str[0])) 4342 str++; 4343 if (str[0] == '0' && (str[1] == 'x' || str[1] == 'X')) 4344 str += 2; 4345 buf_size *= 2; 4346 for (i = 0; str[i] != 0 && i < buf_size; i++) { 4347 while (str[i] == '-') /* Skip dashes in UUIDs. */ 4348 str++; 4349 c = str[i]; 4350 if (isdigit(c)) 4351 c -= '0'; 4352 else if (isalpha(c)) 4353 c -= isupper(c) ? 'A' - 10 : 'a' - 10; 4354 else 4355 break; 4356 if (c >= 16) 4357 break; 4358 if ((i & 1) == 0) 4359 buf[i / 2] |= (c << 4); 4360 else 4361 buf[i / 2] |= c; 4362 } 4363 return ((i + 1) / 2); 4364} 4365 4366/* 4367 * LUN allocation. 4368 * 4369 * Requirements: 4370 * - caller allocates and zeros LUN storage, or passes in a NULL LUN if he 4371 * wants us to allocate the LUN and he can block. 4372 * - ctl_softc is always set 4373 * - be_lun is set if the LUN has a backend (needed for disk LUNs) 4374 * 4375 * Returns 0 for success, non-zero (errno) for failure. 4376 */ 4377static int 4378ctl_alloc_lun(struct ctl_softc *ctl_softc, struct ctl_lun *ctl_lun, 4379 struct ctl_be_lun *const be_lun) 4380{ 4381 struct ctl_lun *nlun, *lun; 4382 struct scsi_vpd_id_descriptor *desc; 4383 struct scsi_vpd_id_t10 *t10id; 4384 const char *eui, *naa, *scsiname, *uuid, *vendor, *value; 4385 int lun_number, i, lun_malloced; 4386 int devidlen, idlen1, idlen2 = 0, len; 4387 4388 if (be_lun == NULL) 4389 return (EINVAL); 4390 4391 /* 4392 * We currently only support Direct Access or Processor LUN types. 4393 */ 4394 switch (be_lun->lun_type) { 4395 case T_DIRECT: 4396 case T_PROCESSOR: 4397 case T_CDROM: 4398 break; 4399 case T_SEQUENTIAL: 4400 case T_CHANGER: 4401 default: 4402 be_lun->lun_config_status(be_lun->be_lun, 4403 CTL_LUN_CONFIG_FAILURE); 4404 break; 4405 } 4406 if (ctl_lun == NULL) { 4407 lun = malloc(sizeof(*lun), M_CTL, M_WAITOK); 4408 lun_malloced = 1; 4409 } else { 4410 lun_malloced = 0; 4411 lun = ctl_lun; 4412 } 4413 4414 memset(lun, 0, sizeof(*lun)); 4415 if (lun_malloced) 4416 lun->flags = CTL_LUN_MALLOCED; 4417 4418 /* Generate LUN ID. */ 4419 devidlen = max(CTL_DEVID_MIN_LEN, 4420 strnlen(be_lun->device_id, CTL_DEVID_LEN)); 4421 idlen1 = sizeof(*t10id) + devidlen; 4422 len = sizeof(struct scsi_vpd_id_descriptor) + idlen1; 4423 scsiname = ctl_get_opt(&be_lun->options, "scsiname"); 4424 if (scsiname != NULL) { 4425 idlen2 = roundup2(strlen(scsiname) + 1, 4); 4426 len += sizeof(struct scsi_vpd_id_descriptor) + idlen2; 4427 } 4428 eui = ctl_get_opt(&be_lun->options, "eui"); 4429 if (eui != NULL) { 4430 len += sizeof(struct scsi_vpd_id_descriptor) + 16; 4431 } 4432 naa = ctl_get_opt(&be_lun->options, "naa"); 4433 if (naa != NULL) { 4434 len += sizeof(struct scsi_vpd_id_descriptor) + 16; 4435 } 4436 uuid = ctl_get_opt(&be_lun->options, "uuid"); 4437 if (uuid != NULL) { 4438 len += sizeof(struct scsi_vpd_id_descriptor) + 18; 4439 } 4440 lun->lun_devid = malloc(sizeof(struct ctl_devid) + len, 4441 M_CTL, M_WAITOK | M_ZERO); 4442 desc = (struct scsi_vpd_id_descriptor *)lun->lun_devid->data; 4443 desc->proto_codeset = SVPD_ID_CODESET_ASCII; 4444 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | SVPD_ID_TYPE_T10; 4445 desc->length = idlen1; 4446 t10id = (struct scsi_vpd_id_t10 *)&desc->identifier[0]; 4447 memset(t10id->vendor, ' ', sizeof(t10id->vendor)); 4448 if ((vendor = ctl_get_opt(&be_lun->options, "vendor")) == NULL) { 4449 strncpy((char *)t10id->vendor, CTL_VENDOR, sizeof(t10id->vendor)); 4450 } else { 4451 strncpy(t10id->vendor, vendor, 4452 min(sizeof(t10id->vendor), strlen(vendor))); 4453 } 4454 strncpy((char *)t10id->vendor_spec_id, 4455 (char *)be_lun->device_id, devidlen); 4456 if (scsiname != NULL) { 4457 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 4458 desc->length); 4459 desc->proto_codeset = SVPD_ID_CODESET_UTF8; 4460 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | 4461 SVPD_ID_TYPE_SCSI_NAME; 4462 desc->length = idlen2; 4463 strlcpy(desc->identifier, scsiname, idlen2); 4464 } 4465 if (eui != NULL) { 4466 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 4467 desc->length); 4468 desc->proto_codeset = SVPD_ID_CODESET_BINARY; 4469 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | 4470 SVPD_ID_TYPE_EUI64; 4471 desc->length = hex2bin(eui, desc->identifier, 16); 4472 desc->length = desc->length > 12 ? 16 : 4473 (desc->length > 8 ? 12 : 8); 4474 len -= 16 - desc->length; 4475 } 4476 if (naa != NULL) { 4477 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 4478 desc->length); 4479 desc->proto_codeset = SVPD_ID_CODESET_BINARY; 4480 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | 4481 SVPD_ID_TYPE_NAA; 4482 desc->length = hex2bin(naa, desc->identifier, 16); 4483 desc->length = desc->length > 8 ? 16 : 8; 4484 len -= 16 - desc->length; 4485 } 4486 if (uuid != NULL) { 4487 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 4488 desc->length); 4489 desc->proto_codeset = SVPD_ID_CODESET_BINARY; 4490 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | 4491 SVPD_ID_TYPE_UUID; 4492 desc->identifier[0] = 0x10; 4493 hex2bin(uuid, &desc->identifier[2], 16); 4494 desc->length = 18; 4495 } 4496 lun->lun_devid->len = len; 4497 4498 mtx_lock(&ctl_softc->ctl_lock); 4499 /* 4500 * See if the caller requested a particular LUN number. If so, see 4501 * if it is available. Otherwise, allocate the first available LUN. 4502 */ 4503 if (be_lun->flags & CTL_LUN_FLAG_ID_REQ) { 4504 if ((be_lun->req_lun_id > (CTL_MAX_LUNS - 1)) 4505 || (ctl_is_set(ctl_softc->ctl_lun_mask, be_lun->req_lun_id))) { 4506 mtx_unlock(&ctl_softc->ctl_lock); 4507 if (be_lun->req_lun_id > (CTL_MAX_LUNS - 1)) { 4508 printf("ctl: requested LUN ID %d is higher " 4509 "than CTL_MAX_LUNS - 1 (%d)\n", 4510 be_lun->req_lun_id, CTL_MAX_LUNS - 1); 4511 } else { 4512 /* 4513 * XXX KDM return an error, or just assign 4514 * another LUN ID in this case?? 4515 */ 4516 printf("ctl: requested LUN ID %d is already " 4517 "in use\n", be_lun->req_lun_id); 4518 } 4519 if (lun->flags & CTL_LUN_MALLOCED) 4520 free(lun, M_CTL); 4521 be_lun->lun_config_status(be_lun->be_lun, 4522 CTL_LUN_CONFIG_FAILURE); 4523 return (ENOSPC); 4524 } 4525 lun_number = be_lun->req_lun_id; 4526 } else { 4527 lun_number = ctl_ffz(ctl_softc->ctl_lun_mask, 0, CTL_MAX_LUNS); 4528 if (lun_number == -1) { 4529 mtx_unlock(&ctl_softc->ctl_lock); 4530 printf("ctl: can't allocate LUN, out of LUNs\n"); 4531 if (lun->flags & CTL_LUN_MALLOCED) 4532 free(lun, M_CTL); 4533 be_lun->lun_config_status(be_lun->be_lun, 4534 CTL_LUN_CONFIG_FAILURE); 4535 return (ENOSPC); 4536 } 4537 } 4538 ctl_set_mask(ctl_softc->ctl_lun_mask, lun_number); 4539 4540 mtx_init(&lun->lun_lock, "CTL LUN", NULL, MTX_DEF); 4541 lun->lun = lun_number; 4542 lun->be_lun = be_lun; 4543 /* 4544 * The processor LUN is always enabled. Disk LUNs come on line 4545 * disabled, and must be enabled by the backend. 4546 */ 4547 lun->flags |= CTL_LUN_DISABLED; 4548 lun->backend = be_lun->be; 4549 be_lun->ctl_lun = lun; 4550 be_lun->lun_id = lun_number; 4551 atomic_add_int(&be_lun->be->num_luns, 1); 4552 if (be_lun->flags & CTL_LUN_FLAG_EJECTED) 4553 lun->flags |= CTL_LUN_EJECTED; 4554 if (be_lun->flags & CTL_LUN_FLAG_NO_MEDIA) 4555 lun->flags |= CTL_LUN_NO_MEDIA; 4556 if (be_lun->flags & CTL_LUN_FLAG_STOPPED) 4557 lun->flags |= CTL_LUN_STOPPED; 4558 4559 if (be_lun->flags & CTL_LUN_FLAG_PRIMARY) 4560 lun->flags |= CTL_LUN_PRIMARY_SC; 4561 4562 value = ctl_get_opt(&be_lun->options, "removable"); 4563 if (value != NULL) { 4564 if (strcmp(value, "on") == 0) 4565 lun->flags |= CTL_LUN_REMOVABLE; 4566 } else if (be_lun->lun_type == T_CDROM) 4567 lun->flags |= CTL_LUN_REMOVABLE; 4568 4569 lun->ctl_softc = ctl_softc; 4570#ifdef CTL_TIME_IO 4571 lun->last_busy = getsbinuptime(); 4572#endif 4573 TAILQ_INIT(&lun->ooa_queue); 4574 TAILQ_INIT(&lun->blocked_queue); 4575 STAILQ_INIT(&lun->error_list); 4576 lun->ie_reported = 1; 4577 callout_init_mtx(&lun->ie_callout, &lun->lun_lock, 0); 4578 ctl_tpc_lun_init(lun); 4579 if (lun->flags & CTL_LUN_REMOVABLE) { 4580 lun->prevent = malloc((CTL_MAX_INITIATORS + 31) / 32 * 4, 4581 M_CTL, M_WAITOK); 4582 } 4583 4584 /* 4585 * Initialize the mode and log page index. 4586 */ 4587 ctl_init_page_index(lun); 4588 ctl_init_log_page_index(lun); 4589 4590 /* 4591 * Now, before we insert this lun on the lun list, set the lun 4592 * inventory changed UA for all other luns. 4593 */ 4594 STAILQ_FOREACH(nlun, &ctl_softc->lun_list, links) { 4595 mtx_lock(&nlun->lun_lock); 4596 ctl_est_ua_all(nlun, -1, CTL_UA_LUN_CHANGE); 4597 mtx_unlock(&nlun->lun_lock); 4598 } 4599 4600 STAILQ_INSERT_TAIL(&ctl_softc->lun_list, lun, links); 4601 4602 ctl_softc->ctl_luns[lun_number] = lun; 4603 4604 ctl_softc->num_luns++; 4605 4606 /* Setup statistics gathering */ 4607 lun->stats.device_type = be_lun->lun_type; 4608 lun->stats.lun_number = lun_number; 4609 lun->stats.blocksize = be_lun->blocksize; 4610 if (be_lun->blocksize == 0) 4611 lun->stats.flags = CTL_LUN_STATS_NO_BLOCKSIZE; 4612 for (i = 0;i < CTL_MAX_PORTS;i++) 4613 lun->stats.ports[i].targ_port = i; 4614 4615 mtx_unlock(&ctl_softc->ctl_lock); 4616 4617 lun->be_lun->lun_config_status(lun->be_lun->be_lun, CTL_LUN_CONFIG_OK); 4618 return (0); 4619} 4620 4621/* 4622 * Delete a LUN. 4623 * Assumptions: 4624 * - LUN has already been marked invalid and any pending I/O has been taken 4625 * care of. 4626 */ 4627static int 4628ctl_free_lun(struct ctl_lun *lun) 4629{ 4630 struct ctl_softc *softc = lun->ctl_softc; 4631 struct ctl_lun *nlun; 4632 int i; 4633 4634 mtx_assert(&softc->ctl_lock, MA_OWNED); 4635 4636 STAILQ_REMOVE(&softc->lun_list, lun, ctl_lun, links); 4637 4638 ctl_clear_mask(softc->ctl_lun_mask, lun->lun); 4639 4640 softc->ctl_luns[lun->lun] = NULL; 4641 4642 if (!TAILQ_EMPTY(&lun->ooa_queue)) 4643 panic("Freeing a LUN %p with outstanding I/O!!\n", lun); 4644 4645 softc->num_luns--; 4646 4647 /* 4648 * Tell the backend to free resources, if this LUN has a backend. 4649 */ 4650 atomic_subtract_int(&lun->be_lun->be->num_luns, 1); 4651 lun->be_lun->lun_shutdown(lun->be_lun->be_lun); 4652 4653 lun->ie_reportcnt = UINT32_MAX; 4654 callout_drain(&lun->ie_callout); 4655 4656 ctl_tpc_lun_shutdown(lun); 4657 mtx_destroy(&lun->lun_lock); 4658 free(lun->lun_devid, M_CTL); 4659 for (i = 0; i < CTL_MAX_PORTS; i++) 4660 free(lun->pending_ua[i], M_CTL); 4661 for (i = 0; i < CTL_MAX_PORTS; i++) 4662 free(lun->pr_keys[i], M_CTL); 4663 free(lun->write_buffer, M_CTL); 4664 free(lun->prevent, M_CTL); 4665 if (lun->flags & CTL_LUN_MALLOCED) 4666 free(lun, M_CTL); 4667 4668 STAILQ_FOREACH(nlun, &softc->lun_list, links) { 4669 mtx_lock(&nlun->lun_lock); 4670 ctl_est_ua_all(nlun, -1, CTL_UA_LUN_CHANGE); 4671 mtx_unlock(&nlun->lun_lock); 4672 } 4673 4674 return (0); 4675} 4676 4677static void 4678ctl_create_lun(struct ctl_be_lun *be_lun) 4679{ 4680 4681 /* 4682 * ctl_alloc_lun() should handle all potential failure cases. 4683 */ 4684 ctl_alloc_lun(control_softc, NULL, be_lun); 4685} 4686 4687int 4688ctl_add_lun(struct ctl_be_lun *be_lun) 4689{ 4690 struct ctl_softc *softc = control_softc; 4691 4692 mtx_lock(&softc->ctl_lock); 4693 STAILQ_INSERT_TAIL(&softc->pending_lun_queue, be_lun, links); 4694 mtx_unlock(&softc->ctl_lock); 4695 wakeup(&softc->pending_lun_queue); 4696 4697 return (0); 4698} 4699 4700int 4701ctl_enable_lun(struct ctl_be_lun *be_lun) 4702{ 4703 struct ctl_softc *softc; 4704 struct ctl_port *port, *nport; 4705 struct ctl_lun *lun; 4706 int retval; 4707 4708 lun = (struct ctl_lun *)be_lun->ctl_lun; 4709 softc = lun->ctl_softc; 4710 4711 mtx_lock(&softc->ctl_lock); 4712 mtx_lock(&lun->lun_lock); 4713 if ((lun->flags & CTL_LUN_DISABLED) == 0) { 4714 /* 4715 * eh? Why did we get called if the LUN is already 4716 * enabled? 4717 */ 4718 mtx_unlock(&lun->lun_lock); 4719 mtx_unlock(&softc->ctl_lock); 4720 return (0); 4721 } 4722 lun->flags &= ~CTL_LUN_DISABLED; 4723 mtx_unlock(&lun->lun_lock); 4724 4725 STAILQ_FOREACH_SAFE(port, &softc->port_list, links, nport) { 4726 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0 || 4727 port->lun_map != NULL || port->lun_enable == NULL) 4728 continue; 4729 4730 /* 4731 * Drop the lock while we call the FETD's enable routine. 4732 * This can lead to a callback into CTL (at least in the 4733 * case of the internal initiator frontend. 4734 */ 4735 mtx_unlock(&softc->ctl_lock); 4736 retval = port->lun_enable(port->targ_lun_arg, lun->lun); 4737 mtx_lock(&softc->ctl_lock); 4738 if (retval != 0) { 4739 printf("%s: FETD %s port %d returned error " 4740 "%d for lun_enable on lun %jd\n", 4741 __func__, port->port_name, port->targ_port, 4742 retval, (intmax_t)lun->lun); 4743 } 4744 } 4745 4746 mtx_unlock(&softc->ctl_lock); 4747 ctl_isc_announce_lun(lun); 4748 4749 return (0); 4750} 4751 4752int 4753ctl_disable_lun(struct ctl_be_lun *be_lun) 4754{ 4755 struct ctl_softc *softc; 4756 struct ctl_port *port; 4757 struct ctl_lun *lun; 4758 int retval; 4759 4760 lun = (struct ctl_lun *)be_lun->ctl_lun; 4761 softc = lun->ctl_softc; 4762 4763 mtx_lock(&softc->ctl_lock); 4764 mtx_lock(&lun->lun_lock); 4765 if (lun->flags & CTL_LUN_DISABLED) { 4766 mtx_unlock(&lun->lun_lock); 4767 mtx_unlock(&softc->ctl_lock); 4768 return (0); 4769 } 4770 lun->flags |= CTL_LUN_DISABLED; 4771 mtx_unlock(&lun->lun_lock); 4772 4773 STAILQ_FOREACH(port, &softc->port_list, links) { 4774 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0 || 4775 port->lun_map != NULL || port->lun_disable == NULL) 4776 continue; 4777 4778 /* 4779 * Drop the lock before we call the frontend's disable 4780 * routine, to avoid lock order reversals. 4781 * 4782 * XXX KDM what happens if the frontend list changes while 4783 * we're traversing it? It's unlikely, but should be handled. 4784 */ 4785 mtx_unlock(&softc->ctl_lock); 4786 retval = port->lun_disable(port->targ_lun_arg, lun->lun); 4787 mtx_lock(&softc->ctl_lock); 4788 if (retval != 0) { 4789 printf("%s: FETD %s port %d returned error " 4790 "%d for lun_disable on lun %jd\n", 4791 __func__, port->port_name, port->targ_port, 4792 retval, (intmax_t)lun->lun); 4793 } 4794 } 4795 4796 mtx_unlock(&softc->ctl_lock); 4797 ctl_isc_announce_lun(lun); 4798 4799 return (0); 4800} 4801 4802int 4803ctl_start_lun(struct ctl_be_lun *be_lun) 4804{ 4805 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 4806 4807 mtx_lock(&lun->lun_lock); 4808 lun->flags &= ~CTL_LUN_STOPPED; 4809 mtx_unlock(&lun->lun_lock); 4810 return (0); 4811} 4812 4813int 4814ctl_stop_lun(struct ctl_be_lun *be_lun) 4815{ 4816 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 4817 4818 mtx_lock(&lun->lun_lock); 4819 lun->flags |= CTL_LUN_STOPPED; 4820 mtx_unlock(&lun->lun_lock); 4821 return (0); 4822} 4823 4824int 4825ctl_lun_no_media(struct ctl_be_lun *be_lun) 4826{ 4827 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 4828 4829 mtx_lock(&lun->lun_lock); 4830 lun->flags |= CTL_LUN_NO_MEDIA; 4831 mtx_unlock(&lun->lun_lock); 4832 return (0); 4833} 4834 4835int 4836ctl_lun_has_media(struct ctl_be_lun *be_lun) 4837{ 4838 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 4839 union ctl_ha_msg msg; 4840 4841 mtx_lock(&lun->lun_lock); 4842 lun->flags &= ~(CTL_LUN_NO_MEDIA | CTL_LUN_EJECTED); 4843 if (lun->flags & CTL_LUN_REMOVABLE) 4844 ctl_est_ua_all(lun, -1, CTL_UA_MEDIUM_CHANGE); 4845 mtx_unlock(&lun->lun_lock); 4846 if ((lun->flags & CTL_LUN_REMOVABLE) && 4847 lun->ctl_softc->ha_mode == CTL_HA_MODE_XFER) { 4848 bzero(&msg.ua, sizeof(msg.ua)); 4849 msg.hdr.msg_type = CTL_MSG_UA; 4850 msg.hdr.nexus.initid = -1; 4851 msg.hdr.nexus.targ_port = -1; 4852 msg.hdr.nexus.targ_lun = lun->lun; 4853 msg.hdr.nexus.targ_mapped_lun = lun->lun; 4854 msg.ua.ua_all = 1; 4855 msg.ua.ua_set = 1; 4856 msg.ua.ua_type = CTL_UA_MEDIUM_CHANGE; 4857 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, sizeof(msg.ua), 4858 M_WAITOK); 4859 } 4860 return (0); 4861} 4862 4863int 4864ctl_lun_ejected(struct ctl_be_lun *be_lun) 4865{ 4866 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 4867 4868 mtx_lock(&lun->lun_lock); 4869 lun->flags |= CTL_LUN_EJECTED; 4870 mtx_unlock(&lun->lun_lock); 4871 return (0); 4872} 4873 4874int 4875ctl_lun_primary(struct ctl_be_lun *be_lun) 4876{ 4877 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 4878 4879 mtx_lock(&lun->lun_lock); 4880 lun->flags |= CTL_LUN_PRIMARY_SC; 4881 ctl_est_ua_all(lun, -1, CTL_UA_ASYM_ACC_CHANGE); 4882 mtx_unlock(&lun->lun_lock); 4883 ctl_isc_announce_lun(lun); 4884 return (0); 4885} 4886 4887int 4888ctl_lun_secondary(struct ctl_be_lun *be_lun) 4889{ 4890 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 4891 4892 mtx_lock(&lun->lun_lock); 4893 lun->flags &= ~CTL_LUN_PRIMARY_SC; 4894 ctl_est_ua_all(lun, -1, CTL_UA_ASYM_ACC_CHANGE); 4895 mtx_unlock(&lun->lun_lock); 4896 ctl_isc_announce_lun(lun); 4897 return (0); 4898} 4899 4900int 4901ctl_invalidate_lun(struct ctl_be_lun *be_lun) 4902{ 4903 struct ctl_softc *softc; 4904 struct ctl_lun *lun; 4905 4906 lun = (struct ctl_lun *)be_lun->ctl_lun; 4907 softc = lun->ctl_softc; 4908 4909 mtx_lock(&lun->lun_lock); 4910 4911 /* 4912 * The LUN needs to be disabled before it can be marked invalid. 4913 */ 4914 if ((lun->flags & CTL_LUN_DISABLED) == 0) { 4915 mtx_unlock(&lun->lun_lock); 4916 return (-1); 4917 } 4918 /* 4919 * Mark the LUN invalid. 4920 */ 4921 lun->flags |= CTL_LUN_INVALID; 4922 4923 /* 4924 * If there is nothing in the OOA queue, go ahead and free the LUN. 4925 * If we have something in the OOA queue, we'll free it when the 4926 * last I/O completes. 4927 */ 4928 if (TAILQ_EMPTY(&lun->ooa_queue)) { 4929 mtx_unlock(&lun->lun_lock); 4930 mtx_lock(&softc->ctl_lock); 4931 ctl_free_lun(lun); 4932 mtx_unlock(&softc->ctl_lock); 4933 } else 4934 mtx_unlock(&lun->lun_lock); 4935 4936 return (0); 4937} 4938 4939void 4940ctl_lun_capacity_changed(struct ctl_be_lun *be_lun) 4941{ 4942 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 4943 union ctl_ha_msg msg; 4944 4945 mtx_lock(&lun->lun_lock); 4946 ctl_est_ua_all(lun, -1, CTL_UA_CAPACITY_CHANGE); 4947 mtx_unlock(&lun->lun_lock); 4948 if (lun->ctl_softc->ha_mode == CTL_HA_MODE_XFER) { 4949 /* Send msg to other side. */ 4950 bzero(&msg.ua, sizeof(msg.ua)); 4951 msg.hdr.msg_type = CTL_MSG_UA; 4952 msg.hdr.nexus.initid = -1; 4953 msg.hdr.nexus.targ_port = -1; 4954 msg.hdr.nexus.targ_lun = lun->lun; 4955 msg.hdr.nexus.targ_mapped_lun = lun->lun; 4956 msg.ua.ua_all = 1; 4957 msg.ua.ua_set = 1; 4958 msg.ua.ua_type = CTL_UA_CAPACITY_CHANGE; 4959 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, sizeof(msg.ua), 4960 M_WAITOK); 4961 } 4962} 4963 4964/* 4965 * Backend "memory move is complete" callback for requests that never 4966 * make it down to say RAIDCore's configuration code. 4967 */ 4968int 4969ctl_config_move_done(union ctl_io *io) 4970{ 4971 int retval; 4972 4973 CTL_DEBUG_PRINT(("ctl_config_move_done\n")); 4974 KASSERT(io->io_hdr.io_type == CTL_IO_SCSI, 4975 ("Config I/O type isn't CTL_IO_SCSI (%d)!", io->io_hdr.io_type)); 4976 4977 if ((io->io_hdr.port_status != 0) && 4978 ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE || 4979 (io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS)) { 4980 /* 4981 * For hardware error sense keys, the sense key 4982 * specific value is defined to be a retry count, 4983 * but we use it to pass back an internal FETD 4984 * error code. XXX KDM Hopefully the FETD is only 4985 * using 16 bits for an error code, since that's 4986 * all the space we have in the sks field. 4987 */ 4988 ctl_set_internal_failure(&io->scsiio, 4989 /*sks_valid*/ 1, 4990 /*retry_count*/ 4991 io->io_hdr.port_status); 4992 } 4993 4994 if (ctl_debug & CTL_DEBUG_CDB_DATA) 4995 ctl_data_print(io); 4996 if (((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_IN) || 4997 ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE && 4998 (io->io_hdr.status & CTL_STATUS_MASK) != CTL_SUCCESS) || 4999 ((io->io_hdr.flags & CTL_FLAG_ABORT) != 0)) { 5000 /* 5001 * XXX KDM just assuming a single pointer here, and not a 5002 * S/G list. If we start using S/G lists for config data, 5003 * we'll need to know how to clean them up here as well. 5004 */ 5005 if (io->io_hdr.flags & CTL_FLAG_ALLOCATED) 5006 free(io->scsiio.kern_data_ptr, M_CTL); 5007 ctl_done(io); 5008 retval = CTL_RETVAL_COMPLETE; 5009 } else { 5010 /* 5011 * XXX KDM now we need to continue data movement. Some 5012 * options: 5013 * - call ctl_scsiio() again? We don't do this for data 5014 * writes, because for those at least we know ahead of 5015 * time where the write will go and how long it is. For 5016 * config writes, though, that information is largely 5017 * contained within the write itself, thus we need to 5018 * parse out the data again. 5019 * 5020 * - Call some other function once the data is in? 5021 */ 5022 5023 /* 5024 * XXX KDM call ctl_scsiio() again for now, and check flag 5025 * bits to see whether we're allocated or not. 5026 */ 5027 retval = ctl_scsiio(&io->scsiio); 5028 } 5029 return (retval); 5030} 5031 5032/* 5033 * This gets called by a backend driver when it is done with a 5034 * data_submit method. 5035 */ 5036void 5037ctl_data_submit_done(union ctl_io *io) 5038{ 5039 /* 5040 * If the IO_CONT flag is set, we need to call the supplied 5041 * function to continue processing the I/O, instead of completing 5042 * the I/O just yet. 5043 * 5044 * If there is an error, though, we don't want to keep processing. 5045 * Instead, just send status back to the initiator. 5046 */ 5047 if ((io->io_hdr.flags & CTL_FLAG_IO_CONT) && 5048 (io->io_hdr.flags & CTL_FLAG_ABORT) == 0 && 5049 ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE || 5050 (io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS)) { 5051 io->scsiio.io_cont(io); 5052 return; 5053 } 5054 ctl_done(io); 5055} 5056 5057/* 5058 * This gets called by a backend driver when it is done with a 5059 * configuration write. 5060 */ 5061void 5062ctl_config_write_done(union ctl_io *io) 5063{ 5064 uint8_t *buf; 5065 5066 /* 5067 * If the IO_CONT flag is set, we need to call the supplied 5068 * function to continue processing the I/O, instead of completing 5069 * the I/O just yet. 5070 * 5071 * If there is an error, though, we don't want to keep processing. 5072 * Instead, just send status back to the initiator. 5073 */ 5074 if ((io->io_hdr.flags & CTL_FLAG_IO_CONT) && 5075 (io->io_hdr.flags & CTL_FLAG_ABORT) == 0 && 5076 ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE || 5077 (io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS)) { 5078 io->scsiio.io_cont(io); 5079 return; 5080 } 5081 /* 5082 * Since a configuration write can be done for commands that actually 5083 * have data allocated, like write buffer, and commands that have 5084 * no data, like start/stop unit, we need to check here. 5085 */ 5086 if (io->io_hdr.flags & CTL_FLAG_ALLOCATED) 5087 buf = io->scsiio.kern_data_ptr; 5088 else 5089 buf = NULL; 5090 ctl_done(io); 5091 if (buf) 5092 free(buf, M_CTL); 5093} 5094 5095void 5096ctl_config_read_done(union ctl_io *io) 5097{ 5098 uint8_t *buf; 5099 5100 /* 5101 * If there is some error -- we are done, skip data transfer. 5102 */ 5103 if ((io->io_hdr.flags & CTL_FLAG_ABORT) != 0 || 5104 ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE && 5105 (io->io_hdr.status & CTL_STATUS_MASK) != CTL_SUCCESS)) { 5106 if (io->io_hdr.flags & CTL_FLAG_ALLOCATED) 5107 buf = io->scsiio.kern_data_ptr; 5108 else 5109 buf = NULL; 5110 ctl_done(io); 5111 if (buf) 5112 free(buf, M_CTL); 5113 return; 5114 } 5115 5116 /* 5117 * If the IO_CONT flag is set, we need to call the supplied 5118 * function to continue processing the I/O, instead of completing 5119 * the I/O just yet. 5120 */ 5121 if (io->io_hdr.flags & CTL_FLAG_IO_CONT) { 5122 io->scsiio.io_cont(io); 5123 return; 5124 } 5125 5126 ctl_datamove(io); 5127} 5128 5129/* 5130 * SCSI release command. 5131 */ 5132int 5133ctl_scsi_release(struct ctl_scsiio *ctsio) 5134{ 5135 struct ctl_lun *lun = CTL_LUN(ctsio); 5136 uint32_t residx; 5137 5138 CTL_DEBUG_PRINT(("ctl_scsi_release\n")); 5139 5140 residx = ctl_get_initindex(&ctsio->io_hdr.nexus); 5141 5142 /* 5143 * XXX KDM right now, we only support LUN reservation. We don't 5144 * support 3rd party reservations, or extent reservations, which 5145 * might actually need the parameter list. If we've gotten this 5146 * far, we've got a LUN reservation. Anything else got kicked out 5147 * above. So, according to SPC, ignore the length. 5148 */ 5149 5150 mtx_lock(&lun->lun_lock); 5151 5152 /* 5153 * According to SPC, it is not an error for an intiator to attempt 5154 * to release a reservation on a LUN that isn't reserved, or that 5155 * is reserved by another initiator. The reservation can only be 5156 * released, though, by the initiator who made it or by one of 5157 * several reset type events. 5158 */ 5159 if ((lun->flags & CTL_LUN_RESERVED) && (lun->res_idx == residx)) 5160 lun->flags &= ~CTL_LUN_RESERVED; 5161 5162 mtx_unlock(&lun->lun_lock); 5163 5164 ctl_set_success(ctsio); 5165 ctl_done((union ctl_io *)ctsio); 5166 return (CTL_RETVAL_COMPLETE); 5167} 5168 5169int 5170ctl_scsi_reserve(struct ctl_scsiio *ctsio) 5171{ 5172 struct ctl_lun *lun = CTL_LUN(ctsio); 5173 uint32_t residx; 5174 5175 CTL_DEBUG_PRINT(("ctl_reserve\n")); 5176 5177 residx = ctl_get_initindex(&ctsio->io_hdr.nexus); 5178 5179 /* 5180 * XXX KDM right now, we only support LUN reservation. We don't 5181 * support 3rd party reservations, or extent reservations, which 5182 * might actually need the parameter list. If we've gotten this 5183 * far, we've got a LUN reservation. Anything else got kicked out 5184 * above. So, according to SPC, ignore the length. 5185 */ 5186 5187 mtx_lock(&lun->lun_lock); 5188 if ((lun->flags & CTL_LUN_RESERVED) && (lun->res_idx != residx)) { 5189 ctl_set_reservation_conflict(ctsio); 5190 goto bailout; 5191 } 5192 5193 /* SPC-3 exceptions to SPC-2 RESERVE and RELEASE behavior. */ 5194 if (lun->flags & CTL_LUN_PR_RESERVED) { 5195 ctl_set_success(ctsio); 5196 goto bailout; 5197 } 5198 5199 lun->flags |= CTL_LUN_RESERVED; 5200 lun->res_idx = residx; 5201 ctl_set_success(ctsio); 5202 5203bailout: 5204 mtx_unlock(&lun->lun_lock); 5205 ctl_done((union ctl_io *)ctsio); 5206 return (CTL_RETVAL_COMPLETE); 5207} 5208 5209int 5210ctl_start_stop(struct ctl_scsiio *ctsio) 5211{ 5212 struct ctl_lun *lun = CTL_LUN(ctsio); 5213 struct scsi_start_stop_unit *cdb; 5214 int retval; 5215 5216 CTL_DEBUG_PRINT(("ctl_start_stop\n")); 5217 5218 cdb = (struct scsi_start_stop_unit *)ctsio->cdb; 5219 5220 if ((cdb->how & SSS_PC_MASK) == 0) { 5221 if ((lun->flags & CTL_LUN_PR_RESERVED) && 5222 (cdb->how & SSS_START) == 0) { 5223 uint32_t residx; 5224 5225 residx = ctl_get_initindex(&ctsio->io_hdr.nexus); 5226 if (ctl_get_prkey(lun, residx) == 0 || 5227 (lun->pr_res_idx != residx && lun->pr_res_type < 4)) { 5228 5229 ctl_set_reservation_conflict(ctsio); 5230 ctl_done((union ctl_io *)ctsio); 5231 return (CTL_RETVAL_COMPLETE); 5232 } 5233 } 5234 5235 if ((cdb->how & SSS_LOEJ) && 5236 (lun->flags & CTL_LUN_REMOVABLE) == 0) { 5237 ctl_set_invalid_field(ctsio, 5238 /*sks_valid*/ 1, 5239 /*command*/ 1, 5240 /*field*/ 4, 5241 /*bit_valid*/ 1, 5242 /*bit*/ 1); 5243 ctl_done((union ctl_io *)ctsio); 5244 return (CTL_RETVAL_COMPLETE); 5245 } 5246 5247 if ((cdb->how & SSS_START) == 0 && (cdb->how & SSS_LOEJ) && 5248 lun->prevent_count > 0) { 5249 /* "Medium removal prevented" */ 5250 ctl_set_sense(ctsio, /*current_error*/ 1, 5251 /*sense_key*/(lun->flags & CTL_LUN_NO_MEDIA) ? 5252 SSD_KEY_NOT_READY : SSD_KEY_ILLEGAL_REQUEST, 5253 /*asc*/ 0x53, /*ascq*/ 0x02, SSD_ELEM_NONE); 5254 ctl_done((union ctl_io *)ctsio); 5255 return (CTL_RETVAL_COMPLETE); 5256 } 5257 } 5258 5259 retval = lun->backend->config_write((union ctl_io *)ctsio); 5260 return (retval); 5261} 5262 5263int 5264ctl_prevent_allow(struct ctl_scsiio *ctsio) 5265{ 5266 struct ctl_lun *lun = CTL_LUN(ctsio); 5267 struct scsi_prevent *cdb; 5268 int retval; 5269 uint32_t initidx; 5270 5271 CTL_DEBUG_PRINT(("ctl_prevent_allow\n")); 5272 5273 cdb = (struct scsi_prevent *)ctsio->cdb; 5274 5275 if ((lun->flags & CTL_LUN_REMOVABLE) == 0 || lun->prevent == NULL) { 5276 ctl_set_invalid_opcode(ctsio); 5277 ctl_done((union ctl_io *)ctsio); 5278 return (CTL_RETVAL_COMPLETE); 5279 } 5280 5281 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 5282 mtx_lock(&lun->lun_lock); 5283 if ((cdb->how & PR_PREVENT) && 5284 ctl_is_set(lun->prevent, initidx) == 0) { 5285 ctl_set_mask(lun->prevent, initidx); 5286 lun->prevent_count++; 5287 } else if ((cdb->how & PR_PREVENT) == 0 && 5288 ctl_is_set(lun->prevent, initidx)) { 5289 ctl_clear_mask(lun->prevent, initidx); 5290 lun->prevent_count--; 5291 } 5292 mtx_unlock(&lun->lun_lock); 5293 retval = lun->backend->config_write((union ctl_io *)ctsio); 5294 return (retval); 5295} 5296 5297/* 5298 * We support the SYNCHRONIZE CACHE command (10 and 16 byte versions), but 5299 * we don't really do anything with the LBA and length fields if the user 5300 * passes them in. Instead we'll just flush out the cache for the entire 5301 * LUN. 5302 */ 5303int 5304ctl_sync_cache(struct ctl_scsiio *ctsio) 5305{ 5306 struct ctl_lun *lun = CTL_LUN(ctsio); 5307 struct ctl_lba_len_flags *lbalen; 5308 uint64_t starting_lba; 5309 uint32_t block_count; 5310 int retval; 5311 uint8_t byte2; 5312 5313 CTL_DEBUG_PRINT(("ctl_sync_cache\n")); 5314 5315 retval = 0; 5316 5317 switch (ctsio->cdb[0]) { 5318 case SYNCHRONIZE_CACHE: { 5319 struct scsi_sync_cache *cdb; 5320 cdb = (struct scsi_sync_cache *)ctsio->cdb; 5321 5322 starting_lba = scsi_4btoul(cdb->begin_lba); 5323 block_count = scsi_2btoul(cdb->lb_count); 5324 byte2 = cdb->byte2; 5325 break; 5326 } 5327 case SYNCHRONIZE_CACHE_16: { 5328 struct scsi_sync_cache_16 *cdb; 5329 cdb = (struct scsi_sync_cache_16 *)ctsio->cdb; 5330 5331 starting_lba = scsi_8btou64(cdb->begin_lba); 5332 block_count = scsi_4btoul(cdb->lb_count); 5333 byte2 = cdb->byte2; 5334 break; 5335 } 5336 default: 5337 ctl_set_invalid_opcode(ctsio); 5338 ctl_done((union ctl_io *)ctsio); 5339 goto bailout; 5340 break; /* NOTREACHED */ 5341 } 5342 5343 /* 5344 * We check the LBA and length, but don't do anything with them. 5345 * A SYNCHRONIZE CACHE will cause the entire cache for this lun to 5346 * get flushed. This check will just help satisfy anyone who wants 5347 * to see an error for an out of range LBA. 5348 */ 5349 if ((starting_lba + block_count) > (lun->be_lun->maxlba + 1)) { 5350 ctl_set_lba_out_of_range(ctsio, 5351 MAX(starting_lba, lun->be_lun->maxlba + 1)); 5352 ctl_done((union ctl_io *)ctsio); 5353 goto bailout; 5354 } 5355 5356 lbalen = (struct ctl_lba_len_flags *)&ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 5357 lbalen->lba = starting_lba; 5358 lbalen->len = block_count; 5359 lbalen->flags = byte2; 5360 retval = lun->backend->config_write((union ctl_io *)ctsio); 5361 5362bailout: 5363 return (retval); 5364} 5365 5366int 5367ctl_format(struct ctl_scsiio *ctsio) 5368{ 5369 struct scsi_format *cdb; 5370 int length, defect_list_len; 5371 5372 CTL_DEBUG_PRINT(("ctl_format\n")); 5373 5374 cdb = (struct scsi_format *)ctsio->cdb; 5375 5376 length = 0; 5377 if (cdb->byte2 & SF_FMTDATA) { 5378 if (cdb->byte2 & SF_LONGLIST) 5379 length = sizeof(struct scsi_format_header_long); 5380 else 5381 length = sizeof(struct scsi_format_header_short); 5382 } 5383 5384 if (((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) 5385 && (length > 0)) { 5386 ctsio->kern_data_ptr = malloc(length, M_CTL, M_WAITOK); 5387 ctsio->kern_data_len = length; 5388 ctsio->kern_total_len = length; 5389 ctsio->kern_data_resid = 0; 5390 ctsio->kern_rel_offset = 0; 5391 ctsio->kern_sg_entries = 0; 5392 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5393 ctsio->be_move_done = ctl_config_move_done; 5394 ctl_datamove((union ctl_io *)ctsio); 5395 5396 return (CTL_RETVAL_COMPLETE); 5397 } 5398 5399 defect_list_len = 0; 5400 5401 if (cdb->byte2 & SF_FMTDATA) { 5402 if (cdb->byte2 & SF_LONGLIST) { 5403 struct scsi_format_header_long *header; 5404 5405 header = (struct scsi_format_header_long *) 5406 ctsio->kern_data_ptr; 5407 5408 defect_list_len = scsi_4btoul(header->defect_list_len); 5409 if (defect_list_len != 0) { 5410 ctl_set_invalid_field(ctsio, 5411 /*sks_valid*/ 1, 5412 /*command*/ 0, 5413 /*field*/ 2, 5414 /*bit_valid*/ 0, 5415 /*bit*/ 0); 5416 goto bailout; 5417 } 5418 } else { 5419 struct scsi_format_header_short *header; 5420 5421 header = (struct scsi_format_header_short *) 5422 ctsio->kern_data_ptr; 5423 5424 defect_list_len = scsi_2btoul(header->defect_list_len); 5425 if (defect_list_len != 0) { 5426 ctl_set_invalid_field(ctsio, 5427 /*sks_valid*/ 1, 5428 /*command*/ 0, 5429 /*field*/ 2, 5430 /*bit_valid*/ 0, 5431 /*bit*/ 0); 5432 goto bailout; 5433 } 5434 } 5435 } 5436 5437 ctl_set_success(ctsio); 5438bailout: 5439 5440 if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) { 5441 free(ctsio->kern_data_ptr, M_CTL); 5442 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED; 5443 } 5444 5445 ctl_done((union ctl_io *)ctsio); 5446 return (CTL_RETVAL_COMPLETE); 5447} 5448 5449int 5450ctl_read_buffer(struct ctl_scsiio *ctsio) 5451{ 5452 struct ctl_lun *lun = CTL_LUN(ctsio); 5453 uint64_t buffer_offset; 5454 uint32_t len; 5455 uint8_t byte2; 5456 static uint8_t descr[4]; 5457 static uint8_t echo_descr[4] = { 0 }; 5458 5459 CTL_DEBUG_PRINT(("ctl_read_buffer\n")); 5460 5461 switch (ctsio->cdb[0]) { 5462 case READ_BUFFER: { 5463 struct scsi_read_buffer *cdb; 5464 5465 cdb = (struct scsi_read_buffer *)ctsio->cdb; 5466 buffer_offset = scsi_3btoul(cdb->offset); 5467 len = scsi_3btoul(cdb->length); 5468 byte2 = cdb->byte2; 5469 break; 5470 } 5471 case READ_BUFFER_16: { 5472 struct scsi_read_buffer_16 *cdb; 5473 5474 cdb = (struct scsi_read_buffer_16 *)ctsio->cdb; 5475 buffer_offset = scsi_8btou64(cdb->offset); 5476 len = scsi_4btoul(cdb->length); 5477 byte2 = cdb->byte2; 5478 break; 5479 } 5480 default: /* This shouldn't happen. */ 5481 ctl_set_invalid_opcode(ctsio); 5482 ctl_done((union ctl_io *)ctsio); 5483 return (CTL_RETVAL_COMPLETE); 5484 } 5485 5486 if (buffer_offset > CTL_WRITE_BUFFER_SIZE || 5487 buffer_offset + len > CTL_WRITE_BUFFER_SIZE) { 5488 ctl_set_invalid_field(ctsio, 5489 /*sks_valid*/ 1, 5490 /*command*/ 1, 5491 /*field*/ 6, 5492 /*bit_valid*/ 0, 5493 /*bit*/ 0); 5494 ctl_done((union ctl_io *)ctsio); 5495 return (CTL_RETVAL_COMPLETE); 5496 } 5497 5498 if ((byte2 & RWB_MODE) == RWB_MODE_DESCR) { 5499 descr[0] = 0; 5500 scsi_ulto3b(CTL_WRITE_BUFFER_SIZE, &descr[1]); 5501 ctsio->kern_data_ptr = descr; 5502 len = min(len, sizeof(descr)); 5503 } else if ((byte2 & RWB_MODE) == RWB_MODE_ECHO_DESCR) { 5504 ctsio->kern_data_ptr = echo_descr; 5505 len = min(len, sizeof(echo_descr)); 5506 } else { 5507 if (lun->write_buffer == NULL) { 5508 lun->write_buffer = malloc(CTL_WRITE_BUFFER_SIZE, 5509 M_CTL, M_WAITOK); 5510 } 5511 ctsio->kern_data_ptr = lun->write_buffer + buffer_offset; 5512 } 5513 ctsio->kern_data_len = len; 5514 ctsio->kern_total_len = len; 5515 ctsio->kern_data_resid = 0; 5516 ctsio->kern_rel_offset = 0; 5517 ctsio->kern_sg_entries = 0; 5518 ctl_set_success(ctsio); 5519 ctsio->be_move_done = ctl_config_move_done; 5520 ctl_datamove((union ctl_io *)ctsio); 5521 return (CTL_RETVAL_COMPLETE); 5522} 5523 5524int 5525ctl_write_buffer(struct ctl_scsiio *ctsio) 5526{ 5527 struct ctl_lun *lun = CTL_LUN(ctsio); 5528 struct scsi_write_buffer *cdb; 5529 int buffer_offset, len; 5530 5531 CTL_DEBUG_PRINT(("ctl_write_buffer\n")); 5532 5533 cdb = (struct scsi_write_buffer *)ctsio->cdb; 5534 5535 len = scsi_3btoul(cdb->length); 5536 buffer_offset = scsi_3btoul(cdb->offset); 5537 5538 if (buffer_offset + len > CTL_WRITE_BUFFER_SIZE) { 5539 ctl_set_invalid_field(ctsio, 5540 /*sks_valid*/ 1, 5541 /*command*/ 1, 5542 /*field*/ 6, 5543 /*bit_valid*/ 0, 5544 /*bit*/ 0); 5545 ctl_done((union ctl_io *)ctsio); 5546 return (CTL_RETVAL_COMPLETE); 5547 } 5548 5549 /* 5550 * If we've got a kernel request that hasn't been malloced yet, 5551 * malloc it and tell the caller the data buffer is here. 5552 */ 5553 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 5554 if (lun->write_buffer == NULL) { 5555 lun->write_buffer = malloc(CTL_WRITE_BUFFER_SIZE, 5556 M_CTL, M_WAITOK); 5557 } 5558 ctsio->kern_data_ptr = lun->write_buffer + buffer_offset; 5559 ctsio->kern_data_len = len; 5560 ctsio->kern_total_len = len; 5561 ctsio->kern_data_resid = 0; 5562 ctsio->kern_rel_offset = 0; 5563 ctsio->kern_sg_entries = 0; 5564 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5565 ctsio->be_move_done = ctl_config_move_done; 5566 ctl_datamove((union ctl_io *)ctsio); 5567 5568 return (CTL_RETVAL_COMPLETE); 5569 } 5570 5571 ctl_set_success(ctsio); 5572 ctl_done((union ctl_io *)ctsio); 5573 return (CTL_RETVAL_COMPLETE); 5574} 5575 5576int 5577ctl_write_same(struct ctl_scsiio *ctsio) 5578{ 5579 struct ctl_lun *lun = CTL_LUN(ctsio); 5580 struct ctl_lba_len_flags *lbalen; 5581 uint64_t lba; 5582 uint32_t num_blocks; 5583 int len, retval; 5584 uint8_t byte2; 5585 5586 CTL_DEBUG_PRINT(("ctl_write_same\n")); 5587 5588 switch (ctsio->cdb[0]) { 5589 case WRITE_SAME_10: { 5590 struct scsi_write_same_10 *cdb; 5591 5592 cdb = (struct scsi_write_same_10 *)ctsio->cdb; 5593 5594 lba = scsi_4btoul(cdb->addr); 5595 num_blocks = scsi_2btoul(cdb->length); 5596 byte2 = cdb->byte2; 5597 break; 5598 } 5599 case WRITE_SAME_16: { 5600 struct scsi_write_same_16 *cdb; 5601 5602 cdb = (struct scsi_write_same_16 *)ctsio->cdb; 5603 5604 lba = scsi_8btou64(cdb->addr); 5605 num_blocks = scsi_4btoul(cdb->length); 5606 byte2 = cdb->byte2; 5607 break; 5608 } 5609 default: 5610 /* 5611 * We got a command we don't support. This shouldn't 5612 * happen, commands should be filtered out above us. 5613 */ 5614 ctl_set_invalid_opcode(ctsio); 5615 ctl_done((union ctl_io *)ctsio); 5616 5617 return (CTL_RETVAL_COMPLETE); 5618 break; /* NOTREACHED */ 5619 } 5620 5621 /* ANCHOR flag can be used only together with UNMAP */ 5622 if ((byte2 & SWS_UNMAP) == 0 && (byte2 & SWS_ANCHOR) != 0) { 5623 ctl_set_invalid_field(ctsio, /*sks_valid*/ 1, 5624 /*command*/ 1, /*field*/ 1, /*bit_valid*/ 1, /*bit*/ 0); 5625 ctl_done((union ctl_io *)ctsio); 5626 return (CTL_RETVAL_COMPLETE); 5627 } 5628 5629 /* 5630 * The first check is to make sure we're in bounds, the second 5631 * check is to catch wrap-around problems. If the lba + num blocks 5632 * is less than the lba, then we've wrapped around and the block 5633 * range is invalid anyway. 5634 */ 5635 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 5636 || ((lba + num_blocks) < lba)) { 5637 ctl_set_lba_out_of_range(ctsio, 5638 MAX(lba, lun->be_lun->maxlba + 1)); 5639 ctl_done((union ctl_io *)ctsio); 5640 return (CTL_RETVAL_COMPLETE); 5641 } 5642 5643 /* Zero number of blocks means "to the last logical block" */ 5644 if (num_blocks == 0) { 5645 if ((lun->be_lun->maxlba + 1) - lba > UINT32_MAX) { 5646 ctl_set_invalid_field(ctsio, 5647 /*sks_valid*/ 0, 5648 /*command*/ 1, 5649 /*field*/ 0, 5650 /*bit_valid*/ 0, 5651 /*bit*/ 0); 5652 ctl_done((union ctl_io *)ctsio); 5653 return (CTL_RETVAL_COMPLETE); 5654 } 5655 num_blocks = (lun->be_lun->maxlba + 1) - lba; 5656 } 5657 5658 len = lun->be_lun->blocksize; 5659 5660 /* 5661 * If we've got a kernel request that hasn't been malloced yet, 5662 * malloc it and tell the caller the data buffer is here. 5663 */ 5664 if ((byte2 & SWS_NDOB) == 0 && 5665 (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 5666 ctsio->kern_data_ptr = malloc(len, M_CTL, M_WAITOK); 5667 ctsio->kern_data_len = len; 5668 ctsio->kern_total_len = len; 5669 ctsio->kern_data_resid = 0; 5670 ctsio->kern_rel_offset = 0; 5671 ctsio->kern_sg_entries = 0; 5672 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5673 ctsio->be_move_done = ctl_config_move_done; 5674 ctl_datamove((union ctl_io *)ctsio); 5675 5676 return (CTL_RETVAL_COMPLETE); 5677 } 5678 5679 lbalen = (struct ctl_lba_len_flags *)&ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 5680 lbalen->lba = lba; 5681 lbalen->len = num_blocks; 5682 lbalen->flags = byte2; 5683 retval = lun->backend->config_write((union ctl_io *)ctsio); 5684 5685 return (retval); 5686} 5687 5688int 5689ctl_unmap(struct ctl_scsiio *ctsio) 5690{ 5691 struct ctl_lun *lun = CTL_LUN(ctsio); 5692 struct scsi_unmap *cdb; 5693 struct ctl_ptr_len_flags *ptrlen; 5694 struct scsi_unmap_header *hdr; 5695 struct scsi_unmap_desc *buf, *end, *endnz, *range; 5696 uint64_t lba; 5697 uint32_t num_blocks; 5698 int len, retval; 5699 uint8_t byte2; 5700 5701 CTL_DEBUG_PRINT(("ctl_unmap\n")); 5702 5703 cdb = (struct scsi_unmap *)ctsio->cdb; 5704 len = scsi_2btoul(cdb->length); 5705 byte2 = cdb->byte2; 5706 5707 /* 5708 * If we've got a kernel request that hasn't been malloced yet, 5709 * malloc it and tell the caller the data buffer is here. 5710 */ 5711 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 5712 ctsio->kern_data_ptr = malloc(len, M_CTL, M_WAITOK); 5713 ctsio->kern_data_len = len; 5714 ctsio->kern_total_len = len; 5715 ctsio->kern_data_resid = 0; 5716 ctsio->kern_rel_offset = 0; 5717 ctsio->kern_sg_entries = 0; 5718 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5719 ctsio->be_move_done = ctl_config_move_done; 5720 ctl_datamove((union ctl_io *)ctsio); 5721 5722 return (CTL_RETVAL_COMPLETE); 5723 } 5724 5725 len = ctsio->kern_total_len - ctsio->kern_data_resid; 5726 hdr = (struct scsi_unmap_header *)ctsio->kern_data_ptr; 5727 if (len < sizeof (*hdr) || 5728 len < (scsi_2btoul(hdr->length) + sizeof(hdr->length)) || 5729 len < (scsi_2btoul(hdr->desc_length) + sizeof (*hdr)) || 5730 scsi_2btoul(hdr->desc_length) % sizeof(*buf) != 0) { 5731 ctl_set_invalid_field(ctsio, 5732 /*sks_valid*/ 0, 5733 /*command*/ 0, 5734 /*field*/ 0, 5735 /*bit_valid*/ 0, 5736 /*bit*/ 0); 5737 goto done; 5738 } 5739 len = scsi_2btoul(hdr->desc_length); 5740 buf = (struct scsi_unmap_desc *)(hdr + 1); 5741 end = buf + len / sizeof(*buf); 5742 5743 endnz = buf; 5744 for (range = buf; range < end; range++) { 5745 lba = scsi_8btou64(range->lba); 5746 num_blocks = scsi_4btoul(range->length); 5747 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 5748 || ((lba + num_blocks) < lba)) { 5749 ctl_set_lba_out_of_range(ctsio, 5750 MAX(lba, lun->be_lun->maxlba + 1)); 5751 ctl_done((union ctl_io *)ctsio); 5752 return (CTL_RETVAL_COMPLETE); 5753 } 5754 if (num_blocks != 0) 5755 endnz = range + 1; 5756 } 5757 5758 /* 5759 * Block backend can not handle zero last range. 5760 * Filter it out and return if there is nothing left. 5761 */ 5762 len = (uint8_t *)endnz - (uint8_t *)buf; 5763 if (len == 0) { 5764 ctl_set_success(ctsio); 5765 goto done; 5766 } 5767 5768 mtx_lock(&lun->lun_lock); 5769 ptrlen = (struct ctl_ptr_len_flags *) 5770 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 5771 ptrlen->ptr = (void *)buf; 5772 ptrlen->len = len; 5773 ptrlen->flags = byte2; 5774 ctl_check_blocked(lun); 5775 mtx_unlock(&lun->lun_lock); 5776 5777 retval = lun->backend->config_write((union ctl_io *)ctsio); 5778 return (retval); 5779 5780done: 5781 if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) { 5782 free(ctsio->kern_data_ptr, M_CTL); 5783 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED; 5784 } 5785 ctl_done((union ctl_io *)ctsio); 5786 return (CTL_RETVAL_COMPLETE); 5787} 5788 5789int 5790ctl_default_page_handler(struct ctl_scsiio *ctsio, 5791 struct ctl_page_index *page_index, uint8_t *page_ptr) 5792{ 5793 struct ctl_lun *lun = CTL_LUN(ctsio); 5794 uint8_t *current_cp; 5795 int set_ua; 5796 uint32_t initidx; 5797 5798 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 5799 set_ua = 0; 5800 5801 current_cp = (page_index->page_data + (page_index->page_len * 5802 CTL_PAGE_CURRENT)); 5803 5804 mtx_lock(&lun->lun_lock); 5805 if (memcmp(current_cp, page_ptr, page_index->page_len)) { 5806 memcpy(current_cp, page_ptr, page_index->page_len); 5807 set_ua = 1; 5808 } 5809 if (set_ua != 0) 5810 ctl_est_ua_all(lun, initidx, CTL_UA_MODE_CHANGE); 5811 mtx_unlock(&lun->lun_lock); 5812 if (set_ua) { 5813 ctl_isc_announce_mode(lun, 5814 ctl_get_initindex(&ctsio->io_hdr.nexus), 5815 page_index->page_code, page_index->subpage); 5816 } 5817 return (CTL_RETVAL_COMPLETE); 5818} 5819 5820static void 5821ctl_ie_timer(void *arg) 5822{ 5823 struct ctl_lun *lun = arg; 5824 uint64_t t; 5825 5826 if (lun->ie_asc == 0) 5827 return; 5828 5829 if (lun->MODE_IE.mrie == SIEP_MRIE_UA) 5830 ctl_est_ua_all(lun, -1, CTL_UA_IE); 5831 else 5832 lun->ie_reported = 0; 5833 5834 if (lun->ie_reportcnt < scsi_4btoul(lun->MODE_IE.report_count)) { 5835 lun->ie_reportcnt++; 5836 t = scsi_4btoul(lun->MODE_IE.interval_timer); 5837 if (t == 0 || t == UINT32_MAX) 5838 t = 3000; /* 5 min */ 5839 callout_schedule(&lun->ie_callout, t * hz / 10); 5840 } 5841} 5842 5843int 5844ctl_ie_page_handler(struct ctl_scsiio *ctsio, 5845 struct ctl_page_index *page_index, uint8_t *page_ptr) 5846{ 5847 struct ctl_lun *lun = CTL_LUN(ctsio); 5848 struct scsi_info_exceptions_page *pg; 5849 uint64_t t; 5850 5851 (void)ctl_default_page_handler(ctsio, page_index, page_ptr); 5852 5853 pg = (struct scsi_info_exceptions_page *)page_ptr; 5854 mtx_lock(&lun->lun_lock); 5855 if (pg->info_flags & SIEP_FLAGS_TEST) { 5856 lun->ie_asc = 0x5d; 5857 lun->ie_ascq = 0xff; 5858 if (pg->mrie == SIEP_MRIE_UA) { 5859 ctl_est_ua_all(lun, -1, CTL_UA_IE); 5860 lun->ie_reported = 1; 5861 } else { 5862 ctl_clr_ua_all(lun, -1, CTL_UA_IE); 5863 lun->ie_reported = -1; 5864 } 5865 lun->ie_reportcnt = 1; 5866 if (lun->ie_reportcnt < scsi_4btoul(pg->report_count)) { 5867 lun->ie_reportcnt++; 5868 t = scsi_4btoul(pg->interval_timer); 5869 if (t == 0 || t == UINT32_MAX) 5870 t = 3000; /* 5 min */ 5871 callout_reset(&lun->ie_callout, t * hz / 10, 5872 ctl_ie_timer, lun); 5873 } 5874 } else { 5875 lun->ie_asc = 0; 5876 lun->ie_ascq = 0; 5877 lun->ie_reported = 1; 5878 ctl_clr_ua_all(lun, -1, CTL_UA_IE); 5879 lun->ie_reportcnt = UINT32_MAX; 5880 callout_stop(&lun->ie_callout); 5881 } 5882 mtx_unlock(&lun->lun_lock); 5883 return (CTL_RETVAL_COMPLETE); 5884} 5885 5886static int 5887ctl_do_mode_select(union ctl_io *io) 5888{ 5889 struct ctl_lun *lun = CTL_LUN(io); 5890 struct scsi_mode_page_header *page_header; 5891 struct ctl_page_index *page_index; 5892 struct ctl_scsiio *ctsio; 5893 int page_len, page_len_offset, page_len_size; 5894 union ctl_modepage_info *modepage_info; 5895 uint16_t *len_left, *len_used; 5896 int retval, i; 5897 5898 ctsio = &io->scsiio; 5899 page_index = NULL; 5900 page_len = 0; 5901 5902 modepage_info = (union ctl_modepage_info *) 5903 ctsio->io_hdr.ctl_private[CTL_PRIV_MODEPAGE].bytes; 5904 len_left = &modepage_info->header.len_left; 5905 len_used = &modepage_info->header.len_used; 5906 5907do_next_page: 5908 5909 page_header = (struct scsi_mode_page_header *) 5910 (ctsio->kern_data_ptr + *len_used); 5911 5912 if (*len_left == 0) { 5913 free(ctsio->kern_data_ptr, M_CTL); 5914 ctl_set_success(ctsio); 5915 ctl_done((union ctl_io *)ctsio); 5916 return (CTL_RETVAL_COMPLETE); 5917 } else if (*len_left < sizeof(struct scsi_mode_page_header)) { 5918 5919 free(ctsio->kern_data_ptr, M_CTL); 5920 ctl_set_param_len_error(ctsio); 5921 ctl_done((union ctl_io *)ctsio); 5922 return (CTL_RETVAL_COMPLETE); 5923 5924 } else if ((page_header->page_code & SMPH_SPF) 5925 && (*len_left < sizeof(struct scsi_mode_page_header_sp))) { 5926 5927 free(ctsio->kern_data_ptr, M_CTL); 5928 ctl_set_param_len_error(ctsio); 5929 ctl_done((union ctl_io *)ctsio); 5930 return (CTL_RETVAL_COMPLETE); 5931 } 5932 5933 5934 /* 5935 * XXX KDM should we do something with the block descriptor? 5936 */ 5937 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 5938 page_index = &lun->mode_pages.index[i]; 5939 if (lun->be_lun->lun_type == T_DIRECT && 5940 (page_index->page_flags & CTL_PAGE_FLAG_DIRECT) == 0) 5941 continue; 5942 if (lun->be_lun->lun_type == T_PROCESSOR && 5943 (page_index->page_flags & CTL_PAGE_FLAG_PROC) == 0) 5944 continue; 5945 if (lun->be_lun->lun_type == T_CDROM && 5946 (page_index->page_flags & CTL_PAGE_FLAG_CDROM) == 0) 5947 continue; 5948 5949 if ((page_index->page_code & SMPH_PC_MASK) != 5950 (page_header->page_code & SMPH_PC_MASK)) 5951 continue; 5952 5953 /* 5954 * If neither page has a subpage code, then we've got a 5955 * match. 5956 */ 5957 if (((page_index->page_code & SMPH_SPF) == 0) 5958 && ((page_header->page_code & SMPH_SPF) == 0)) { 5959 page_len = page_header->page_length; 5960 break; 5961 } 5962 5963 /* 5964 * If both pages have subpages, then the subpage numbers 5965 * have to match. 5966 */ 5967 if ((page_index->page_code & SMPH_SPF) 5968 && (page_header->page_code & SMPH_SPF)) { 5969 struct scsi_mode_page_header_sp *sph; 5970 5971 sph = (struct scsi_mode_page_header_sp *)page_header; 5972 if (page_index->subpage == sph->subpage) { 5973 page_len = scsi_2btoul(sph->page_length); 5974 break; 5975 } 5976 } 5977 } 5978 5979 /* 5980 * If we couldn't find the page, or if we don't have a mode select 5981 * handler for it, send back an error to the user. 5982 */ 5983 if ((i >= CTL_NUM_MODE_PAGES) 5984 || (page_index->select_handler == NULL)) { 5985 ctl_set_invalid_field(ctsio, 5986 /*sks_valid*/ 1, 5987 /*command*/ 0, 5988 /*field*/ *len_used, 5989 /*bit_valid*/ 0, 5990 /*bit*/ 0); 5991 free(ctsio->kern_data_ptr, M_CTL); 5992 ctl_done((union ctl_io *)ctsio); 5993 return (CTL_RETVAL_COMPLETE); 5994 } 5995 5996 if (page_index->page_code & SMPH_SPF) { 5997 page_len_offset = 2; 5998 page_len_size = 2; 5999 } else { 6000 page_len_size = 1; 6001 page_len_offset = 1; 6002 } 6003 6004 /* 6005 * If the length the initiator gives us isn't the one we specify in 6006 * the mode page header, or if they didn't specify enough data in 6007 * the CDB to avoid truncating this page, kick out the request. 6008 */ 6009 if (page_len != page_index->page_len - page_len_offset - page_len_size) { 6010 ctl_set_invalid_field(ctsio, 6011 /*sks_valid*/ 1, 6012 /*command*/ 0, 6013 /*field*/ *len_used + page_len_offset, 6014 /*bit_valid*/ 0, 6015 /*bit*/ 0); 6016 free(ctsio->kern_data_ptr, M_CTL); 6017 ctl_done((union ctl_io *)ctsio); 6018 return (CTL_RETVAL_COMPLETE); 6019 } 6020 if (*len_left < page_index->page_len) { 6021 free(ctsio->kern_data_ptr, M_CTL); 6022 ctl_set_param_len_error(ctsio); 6023 ctl_done((union ctl_io *)ctsio); 6024 return (CTL_RETVAL_COMPLETE); 6025 } 6026 6027 /* 6028 * Run through the mode page, checking to make sure that the bits 6029 * the user changed are actually legal for him to change. 6030 */ 6031 for (i = 0; i < page_index->page_len; i++) { 6032 uint8_t *user_byte, *change_mask, *current_byte; 6033 int bad_bit; 6034 int j; 6035 6036 user_byte = (uint8_t *)page_header + i; 6037 change_mask = page_index->page_data + 6038 (page_index->page_len * CTL_PAGE_CHANGEABLE) + i; 6039 current_byte = page_index->page_data + 6040 (page_index->page_len * CTL_PAGE_CURRENT) + i; 6041 6042 /* 6043 * Check to see whether the user set any bits in this byte 6044 * that he is not allowed to set. 6045 */ 6046 if ((*user_byte & ~(*change_mask)) == 6047 (*current_byte & ~(*change_mask))) 6048 continue; 6049 6050 /* 6051 * Go through bit by bit to determine which one is illegal. 6052 */ 6053 bad_bit = 0; 6054 for (j = 7; j >= 0; j--) { 6055 if ((((1 << i) & ~(*change_mask)) & *user_byte) != 6056 (((1 << i) & ~(*change_mask)) & *current_byte)) { 6057 bad_bit = i; 6058 break; 6059 } 6060 } 6061 ctl_set_invalid_field(ctsio, 6062 /*sks_valid*/ 1, 6063 /*command*/ 0, 6064 /*field*/ *len_used + i, 6065 /*bit_valid*/ 1, 6066 /*bit*/ bad_bit); 6067 free(ctsio->kern_data_ptr, M_CTL); 6068 ctl_done((union ctl_io *)ctsio); 6069 return (CTL_RETVAL_COMPLETE); 6070 } 6071 6072 /* 6073 * Decrement these before we call the page handler, since we may 6074 * end up getting called back one way or another before the handler 6075 * returns to this context. 6076 */ 6077 *len_left -= page_index->page_len; 6078 *len_used += page_index->page_len; 6079 6080 retval = page_index->select_handler(ctsio, page_index, 6081 (uint8_t *)page_header); 6082 6083 /* 6084 * If the page handler returns CTL_RETVAL_QUEUED, then we need to 6085 * wait until this queued command completes to finish processing 6086 * the mode page. If it returns anything other than 6087 * CTL_RETVAL_COMPLETE (e.g. CTL_RETVAL_ERROR), then it should have 6088 * already set the sense information, freed the data pointer, and 6089 * completed the io for us. 6090 */ 6091 if (retval != CTL_RETVAL_COMPLETE) 6092 goto bailout_no_done; 6093 6094 /* 6095 * If the initiator sent us more than one page, parse the next one. 6096 */ 6097 if (*len_left > 0) 6098 goto do_next_page; 6099 6100 ctl_set_success(ctsio); 6101 free(ctsio->kern_data_ptr, M_CTL); 6102 ctl_done((union ctl_io *)ctsio); 6103 6104bailout_no_done: 6105 6106 return (CTL_RETVAL_COMPLETE); 6107 6108} 6109 6110int 6111ctl_mode_select(struct ctl_scsiio *ctsio) 6112{ 6113 struct ctl_lun *lun = CTL_LUN(ctsio); 6114 union ctl_modepage_info *modepage_info; 6115 int bd_len, i, header_size, param_len, pf, rtd, sp; 6116 uint32_t initidx; 6117 6118 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 6119 switch (ctsio->cdb[0]) { 6120 case MODE_SELECT_6: { 6121 struct scsi_mode_select_6 *cdb; 6122 6123 cdb = (struct scsi_mode_select_6 *)ctsio->cdb; 6124 6125 pf = (cdb->byte2 & SMS_PF) ? 1 : 0; 6126 rtd = (cdb->byte2 & SMS_RTD) ? 1 : 0; 6127 sp = (cdb->byte2 & SMS_SP) ? 1 : 0; 6128 param_len = cdb->length; 6129 header_size = sizeof(struct scsi_mode_header_6); 6130 break; 6131 } 6132 case MODE_SELECT_10: { 6133 struct scsi_mode_select_10 *cdb; 6134 6135 cdb = (struct scsi_mode_select_10 *)ctsio->cdb; 6136 6137 pf = (cdb->byte2 & SMS_PF) ? 1 : 0; 6138 rtd = (cdb->byte2 & SMS_RTD) ? 1 : 0; 6139 sp = (cdb->byte2 & SMS_SP) ? 1 : 0; 6140 param_len = scsi_2btoul(cdb->length); 6141 header_size = sizeof(struct scsi_mode_header_10); 6142 break; 6143 } 6144 default: 6145 ctl_set_invalid_opcode(ctsio); 6146 ctl_done((union ctl_io *)ctsio); 6147 return (CTL_RETVAL_COMPLETE); 6148 } 6149 6150 if (rtd) { 6151 if (param_len != 0) { 6152 ctl_set_invalid_field(ctsio, /*sks_valid*/ 0, 6153 /*command*/ 1, /*field*/ 0, 6154 /*bit_valid*/ 0, /*bit*/ 0); 6155 ctl_done((union ctl_io *)ctsio); 6156 return (CTL_RETVAL_COMPLETE); 6157 } 6158 6159 /* Revert to defaults. */ 6160 ctl_init_page_index(lun); 6161 mtx_lock(&lun->lun_lock); 6162 ctl_est_ua_all(lun, initidx, CTL_UA_MODE_CHANGE); 6163 mtx_unlock(&lun->lun_lock); 6164 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6165 ctl_isc_announce_mode(lun, -1, 6166 lun->mode_pages.index[i].page_code & SMPH_PC_MASK, 6167 lun->mode_pages.index[i].subpage); 6168 } 6169 ctl_set_success(ctsio); 6170 ctl_done((union ctl_io *)ctsio); 6171 return (CTL_RETVAL_COMPLETE); 6172 } 6173 6174 /* 6175 * From SPC-3: 6176 * "A parameter list length of zero indicates that the Data-Out Buffer 6177 * shall be empty. This condition shall not be considered as an error." 6178 */ 6179 if (param_len == 0) { 6180 ctl_set_success(ctsio); 6181 ctl_done((union ctl_io *)ctsio); 6182 return (CTL_RETVAL_COMPLETE); 6183 } 6184 6185 /* 6186 * Since we'll hit this the first time through, prior to 6187 * allocation, we don't need to free a data buffer here. 6188 */ 6189 if (param_len < header_size) { 6190 ctl_set_param_len_error(ctsio); 6191 ctl_done((union ctl_io *)ctsio); 6192 return (CTL_RETVAL_COMPLETE); 6193 } 6194 6195 /* 6196 * Allocate the data buffer and grab the user's data. In theory, 6197 * we shouldn't have to sanity check the parameter list length here 6198 * because the maximum size is 64K. We should be able to malloc 6199 * that much without too many problems. 6200 */ 6201 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 6202 ctsio->kern_data_ptr = malloc(param_len, M_CTL, M_WAITOK); 6203 ctsio->kern_data_len = param_len; 6204 ctsio->kern_total_len = param_len; 6205 ctsio->kern_data_resid = 0; 6206 ctsio->kern_rel_offset = 0; 6207 ctsio->kern_sg_entries = 0; 6208 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6209 ctsio->be_move_done = ctl_config_move_done; 6210 ctl_datamove((union ctl_io *)ctsio); 6211 6212 return (CTL_RETVAL_COMPLETE); 6213 } 6214 6215 switch (ctsio->cdb[0]) { 6216 case MODE_SELECT_6: { 6217 struct scsi_mode_header_6 *mh6; 6218 6219 mh6 = (struct scsi_mode_header_6 *)ctsio->kern_data_ptr; 6220 bd_len = mh6->blk_desc_len; 6221 break; 6222 } 6223 case MODE_SELECT_10: { 6224 struct scsi_mode_header_10 *mh10; 6225 6226 mh10 = (struct scsi_mode_header_10 *)ctsio->kern_data_ptr; 6227 bd_len = scsi_2btoul(mh10->blk_desc_len); 6228 break; 6229 } 6230 default: 6231 panic("%s: Invalid CDB type %#x", __func__, ctsio->cdb[0]); 6232 } 6233 6234 if (param_len < (header_size + bd_len)) { 6235 free(ctsio->kern_data_ptr, M_CTL); 6236 ctl_set_param_len_error(ctsio); 6237 ctl_done((union ctl_io *)ctsio); 6238 return (CTL_RETVAL_COMPLETE); 6239 } 6240 6241 /* 6242 * Set the IO_CONT flag, so that if this I/O gets passed to 6243 * ctl_config_write_done(), it'll get passed back to 6244 * ctl_do_mode_select() for further processing, or completion if 6245 * we're all done. 6246 */ 6247 ctsio->io_hdr.flags |= CTL_FLAG_IO_CONT; 6248 ctsio->io_cont = ctl_do_mode_select; 6249 6250 modepage_info = (union ctl_modepage_info *) 6251 ctsio->io_hdr.ctl_private[CTL_PRIV_MODEPAGE].bytes; 6252 memset(modepage_info, 0, sizeof(*modepage_info)); 6253 modepage_info->header.len_left = param_len - header_size - bd_len; 6254 modepage_info->header.len_used = header_size + bd_len; 6255 6256 return (ctl_do_mode_select((union ctl_io *)ctsio)); 6257} 6258 6259int 6260ctl_mode_sense(struct ctl_scsiio *ctsio) 6261{ 6262 struct ctl_lun *lun = CTL_LUN(ctsio); 6263 int pc, page_code, dbd, llba, subpage; 6264 int alloc_len, page_len, header_len, total_len; 6265 struct scsi_mode_block_descr *block_desc; 6266 struct ctl_page_index *page_index; 6267 6268 dbd = 0; 6269 llba = 0; 6270 block_desc = NULL; 6271 6272 CTL_DEBUG_PRINT(("ctl_mode_sense\n")); 6273 6274 switch (ctsio->cdb[0]) { 6275 case MODE_SENSE_6: { 6276 struct scsi_mode_sense_6 *cdb; 6277 6278 cdb = (struct scsi_mode_sense_6 *)ctsio->cdb; 6279 6280 header_len = sizeof(struct scsi_mode_hdr_6); 6281 if (cdb->byte2 & SMS_DBD) 6282 dbd = 1; 6283 else 6284 header_len += sizeof(struct scsi_mode_block_descr); 6285 6286 pc = (cdb->page & SMS_PAGE_CTRL_MASK) >> 6; 6287 page_code = cdb->page & SMS_PAGE_CODE; 6288 subpage = cdb->subpage; 6289 alloc_len = cdb->length; 6290 break; 6291 } 6292 case MODE_SENSE_10: { 6293 struct scsi_mode_sense_10 *cdb; 6294 6295 cdb = (struct scsi_mode_sense_10 *)ctsio->cdb; 6296 6297 header_len = sizeof(struct scsi_mode_hdr_10); 6298 6299 if (cdb->byte2 & SMS_DBD) 6300 dbd = 1; 6301 else 6302 header_len += sizeof(struct scsi_mode_block_descr); 6303 if (cdb->byte2 & SMS10_LLBAA) 6304 llba = 1; 6305 pc = (cdb->page & SMS_PAGE_CTRL_MASK) >> 6; 6306 page_code = cdb->page & SMS_PAGE_CODE; 6307 subpage = cdb->subpage; 6308 alloc_len = scsi_2btoul(cdb->length); 6309 break; 6310 } 6311 default: 6312 ctl_set_invalid_opcode(ctsio); 6313 ctl_done((union ctl_io *)ctsio); 6314 return (CTL_RETVAL_COMPLETE); 6315 break; /* NOTREACHED */ 6316 } 6317 6318 /* 6319 * We have to make a first pass through to calculate the size of 6320 * the pages that match the user's query. Then we allocate enough 6321 * memory to hold it, and actually copy the data into the buffer. 6322 */ 6323 switch (page_code) { 6324 case SMS_ALL_PAGES_PAGE: { 6325 u_int i; 6326 6327 page_len = 0; 6328 6329 /* 6330 * At the moment, values other than 0 and 0xff here are 6331 * reserved according to SPC-3. 6332 */ 6333 if ((subpage != SMS_SUBPAGE_PAGE_0) 6334 && (subpage != SMS_SUBPAGE_ALL)) { 6335 ctl_set_invalid_field(ctsio, 6336 /*sks_valid*/ 1, 6337 /*command*/ 1, 6338 /*field*/ 3, 6339 /*bit_valid*/ 0, 6340 /*bit*/ 0); 6341 ctl_done((union ctl_io *)ctsio); 6342 return (CTL_RETVAL_COMPLETE); 6343 } 6344 6345 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6346 page_index = &lun->mode_pages.index[i]; 6347 6348 /* Make sure the page is supported for this dev type */ 6349 if (lun->be_lun->lun_type == T_DIRECT && 6350 (page_index->page_flags & CTL_PAGE_FLAG_DIRECT) == 0) 6351 continue; 6352 if (lun->be_lun->lun_type == T_PROCESSOR && 6353 (page_index->page_flags & CTL_PAGE_FLAG_PROC) == 0) 6354 continue; 6355 if (lun->be_lun->lun_type == T_CDROM && 6356 (page_index->page_flags & CTL_PAGE_FLAG_CDROM) == 0) 6357 continue; 6358 6359 /* 6360 * We don't use this subpage if the user didn't 6361 * request all subpages. 6362 */ 6363 if ((page_index->subpage != 0) 6364 && (subpage == SMS_SUBPAGE_PAGE_0)) 6365 continue; 6366 6367#if 0 6368 printf("found page %#x len %d\n", 6369 page_index->page_code & SMPH_PC_MASK, 6370 page_index->page_len); 6371#endif 6372 page_len += page_index->page_len; 6373 } 6374 break; 6375 } 6376 default: { 6377 u_int i; 6378 6379 page_len = 0; 6380 6381 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6382 page_index = &lun->mode_pages.index[i]; 6383 6384 /* Make sure the page is supported for this dev type */ 6385 if (lun->be_lun->lun_type == T_DIRECT && 6386 (page_index->page_flags & CTL_PAGE_FLAG_DIRECT) == 0) 6387 continue; 6388 if (lun->be_lun->lun_type == T_PROCESSOR && 6389 (page_index->page_flags & CTL_PAGE_FLAG_PROC) == 0) 6390 continue; 6391 if (lun->be_lun->lun_type == T_CDROM && 6392 (page_index->page_flags & CTL_PAGE_FLAG_CDROM) == 0) 6393 continue; 6394 6395 /* Look for the right page code */ 6396 if ((page_index->page_code & SMPH_PC_MASK) != page_code) 6397 continue; 6398 6399 /* Look for the right subpage or the subpage wildcard*/ 6400 if ((page_index->subpage != subpage) 6401 && (subpage != SMS_SUBPAGE_ALL)) 6402 continue; 6403 6404#if 0 6405 printf("found page %#x len %d\n", 6406 page_index->page_code & SMPH_PC_MASK, 6407 page_index->page_len); 6408#endif 6409 6410 page_len += page_index->page_len; 6411 } 6412 6413 if (page_len == 0) { 6414 ctl_set_invalid_field(ctsio, 6415 /*sks_valid*/ 1, 6416 /*command*/ 1, 6417 /*field*/ 2, 6418 /*bit_valid*/ 1, 6419 /*bit*/ 5); 6420 ctl_done((union ctl_io *)ctsio); 6421 return (CTL_RETVAL_COMPLETE); 6422 } 6423 break; 6424 } 6425 } 6426 6427 total_len = header_len + page_len; 6428#if 0 6429 printf("header_len = %d, page_len = %d, total_len = %d\n", 6430 header_len, page_len, total_len); 6431#endif 6432 6433 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 6434 ctsio->kern_sg_entries = 0; 6435 ctsio->kern_data_resid = 0; 6436 ctsio->kern_rel_offset = 0; 6437 if (total_len < alloc_len) { 6438 ctsio->residual = alloc_len - total_len; 6439 ctsio->kern_data_len = total_len; 6440 ctsio->kern_total_len = total_len; 6441 } else { 6442 ctsio->residual = 0; 6443 ctsio->kern_data_len = alloc_len; 6444 ctsio->kern_total_len = alloc_len; 6445 } 6446 6447 switch (ctsio->cdb[0]) { 6448 case MODE_SENSE_6: { 6449 struct scsi_mode_hdr_6 *header; 6450 6451 header = (struct scsi_mode_hdr_6 *)ctsio->kern_data_ptr; 6452 6453 header->datalen = MIN(total_len - 1, 254); 6454 if (lun->be_lun->lun_type == T_DIRECT) { 6455 header->dev_specific = 0x10; /* DPOFUA */ 6456 if ((lun->be_lun->flags & CTL_LUN_FLAG_READONLY) || 6457 (lun->MODE_CTRL.eca_and_aen & SCP_SWP) != 0) 6458 header->dev_specific |= 0x80; /* WP */ 6459 } 6460 if (dbd) 6461 header->block_descr_len = 0; 6462 else 6463 header->block_descr_len = 6464 sizeof(struct scsi_mode_block_descr); 6465 block_desc = (struct scsi_mode_block_descr *)&header[1]; 6466 break; 6467 } 6468 case MODE_SENSE_10: { 6469 struct scsi_mode_hdr_10 *header; 6470 int datalen; 6471 6472 header = (struct scsi_mode_hdr_10 *)ctsio->kern_data_ptr; 6473 6474 datalen = MIN(total_len - 2, 65533); 6475 scsi_ulto2b(datalen, header->datalen); 6476 if (lun->be_lun->lun_type == T_DIRECT) { 6477 header->dev_specific = 0x10; /* DPOFUA */ 6478 if ((lun->be_lun->flags & CTL_LUN_FLAG_READONLY) || 6479 (lun->MODE_CTRL.eca_and_aen & SCP_SWP) != 0) 6480 header->dev_specific |= 0x80; /* WP */ 6481 } 6482 if (dbd) 6483 scsi_ulto2b(0, header->block_descr_len); 6484 else 6485 scsi_ulto2b(sizeof(struct scsi_mode_block_descr), 6486 header->block_descr_len); 6487 block_desc = (struct scsi_mode_block_descr *)&header[1]; 6488 break; 6489 } 6490 default: 6491 panic("%s: Invalid CDB type %#x", __func__, ctsio->cdb[0]); 6492 } 6493 6494 /* 6495 * If we've got a disk, use its blocksize in the block 6496 * descriptor. Otherwise, just set it to 0. 6497 */ 6498 if (dbd == 0) { 6499 if (lun->be_lun->lun_type == T_DIRECT) 6500 scsi_ulto3b(lun->be_lun->blocksize, 6501 block_desc->block_len); 6502 else 6503 scsi_ulto3b(0, block_desc->block_len); 6504 } 6505 6506 switch (page_code) { 6507 case SMS_ALL_PAGES_PAGE: { 6508 int i, data_used; 6509 6510 data_used = header_len; 6511 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6512 struct ctl_page_index *page_index; 6513 6514 page_index = &lun->mode_pages.index[i]; 6515 if (lun->be_lun->lun_type == T_DIRECT && 6516 (page_index->page_flags & CTL_PAGE_FLAG_DIRECT) == 0) 6517 continue; 6518 if (lun->be_lun->lun_type == T_PROCESSOR && 6519 (page_index->page_flags & CTL_PAGE_FLAG_PROC) == 0) 6520 continue; 6521 if (lun->be_lun->lun_type == T_CDROM && 6522 (page_index->page_flags & CTL_PAGE_FLAG_CDROM) == 0) 6523 continue; 6524 6525 /* 6526 * We don't use this subpage if the user didn't 6527 * request all subpages. We already checked (above) 6528 * to make sure the user only specified a subpage 6529 * of 0 or 0xff in the SMS_ALL_PAGES_PAGE case. 6530 */ 6531 if ((page_index->subpage != 0) 6532 && (subpage == SMS_SUBPAGE_PAGE_0)) 6533 continue; 6534 6535 /* 6536 * Call the handler, if it exists, to update the 6537 * page to the latest values. 6538 */ 6539 if (page_index->sense_handler != NULL) 6540 page_index->sense_handler(ctsio, page_index,pc); 6541 6542 memcpy(ctsio->kern_data_ptr + data_used, 6543 page_index->page_data + 6544 (page_index->page_len * pc), 6545 page_index->page_len); 6546 data_used += page_index->page_len; 6547 } 6548 break; 6549 } 6550 default: { 6551 int i, data_used; 6552 6553 data_used = header_len; 6554 6555 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6556 struct ctl_page_index *page_index; 6557 6558 page_index = &lun->mode_pages.index[i]; 6559 6560 /* Look for the right page code */ 6561 if ((page_index->page_code & SMPH_PC_MASK) != page_code) 6562 continue; 6563 6564 /* Look for the right subpage or the subpage wildcard*/ 6565 if ((page_index->subpage != subpage) 6566 && (subpage != SMS_SUBPAGE_ALL)) 6567 continue; 6568 6569 /* Make sure the page is supported for this dev type */ 6570 if (lun->be_lun->lun_type == T_DIRECT && 6571 (page_index->page_flags & CTL_PAGE_FLAG_DIRECT) == 0) 6572 continue; 6573 if (lun->be_lun->lun_type == T_PROCESSOR && 6574 (page_index->page_flags & CTL_PAGE_FLAG_PROC) == 0) 6575 continue; 6576 if (lun->be_lun->lun_type == T_CDROM && 6577 (page_index->page_flags & CTL_PAGE_FLAG_CDROM) == 0) 6578 continue; 6579 6580 /* 6581 * Call the handler, if it exists, to update the 6582 * page to the latest values. 6583 */ 6584 if (page_index->sense_handler != NULL) 6585 page_index->sense_handler(ctsio, page_index,pc); 6586 6587 memcpy(ctsio->kern_data_ptr + data_used, 6588 page_index->page_data + 6589 (page_index->page_len * pc), 6590 page_index->page_len); 6591 data_used += page_index->page_len; 6592 } 6593 break; 6594 } 6595 } 6596 6597 ctl_set_success(ctsio); 6598 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6599 ctsio->be_move_done = ctl_config_move_done; 6600 ctl_datamove((union ctl_io *)ctsio); 6601 return (CTL_RETVAL_COMPLETE); 6602} 6603 6604int 6605ctl_lbp_log_sense_handler(struct ctl_scsiio *ctsio, 6606 struct ctl_page_index *page_index, 6607 int pc) 6608{ 6609 struct ctl_lun *lun = CTL_LUN(ctsio); 6610 struct scsi_log_param_header *phdr; 6611 uint8_t *data; 6612 uint64_t val; 6613 6614 data = page_index->page_data; 6615 6616 if (lun->backend->lun_attr != NULL && 6617 (val = lun->backend->lun_attr(lun->be_lun->be_lun, "blocksavail")) 6618 != UINT64_MAX) { 6619 phdr = (struct scsi_log_param_header *)data; 6620 scsi_ulto2b(0x0001, phdr->param_code); 6621 phdr->param_control = SLP_LBIN | SLP_LP; 6622 phdr->param_len = 8; 6623 data = (uint8_t *)(phdr + 1); 6624 scsi_ulto4b(val >> CTL_LBP_EXPONENT, data); 6625 data[4] = 0x02; /* per-pool */ 6626 data += phdr->param_len; 6627 } 6628 6629 if (lun->backend->lun_attr != NULL && 6630 (val = lun->backend->lun_attr(lun->be_lun->be_lun, "blocksused")) 6631 != UINT64_MAX) { 6632 phdr = (struct scsi_log_param_header *)data; 6633 scsi_ulto2b(0x0002, phdr->param_code); 6634 phdr->param_control = SLP_LBIN | SLP_LP; 6635 phdr->param_len = 8; 6636 data = (uint8_t *)(phdr + 1); 6637 scsi_ulto4b(val >> CTL_LBP_EXPONENT, data); 6638 data[4] = 0x01; /* per-LUN */ 6639 data += phdr->param_len; 6640 } 6641 6642 if (lun->backend->lun_attr != NULL && 6643 (val = lun->backend->lun_attr(lun->be_lun->be_lun, "poolblocksavail")) 6644 != UINT64_MAX) { 6645 phdr = (struct scsi_log_param_header *)data; 6646 scsi_ulto2b(0x00f1, phdr->param_code); 6647 phdr->param_control = SLP_LBIN | SLP_LP; 6648 phdr->param_len = 8; 6649 data = (uint8_t *)(phdr + 1); 6650 scsi_ulto4b(val >> CTL_LBP_EXPONENT, data); 6651 data[4] = 0x02; /* per-pool */ 6652 data += phdr->param_len; 6653 } 6654 6655 if (lun->backend->lun_attr != NULL && 6656 (val = lun->backend->lun_attr(lun->be_lun->be_lun, "poolblocksused")) 6657 != UINT64_MAX) { 6658 phdr = (struct scsi_log_param_header *)data; 6659 scsi_ulto2b(0x00f2, phdr->param_code); 6660 phdr->param_control = SLP_LBIN | SLP_LP; 6661 phdr->param_len = 8; 6662 data = (uint8_t *)(phdr + 1); 6663 scsi_ulto4b(val >> CTL_LBP_EXPONENT, data); 6664 data[4] = 0x02; /* per-pool */ 6665 data += phdr->param_len; 6666 } 6667 6668 page_index->page_len = data - page_index->page_data; 6669 return (0); 6670} 6671 6672int 6673ctl_sap_log_sense_handler(struct ctl_scsiio *ctsio, 6674 struct ctl_page_index *page_index, 6675 int pc) 6676{ 6677 struct ctl_lun *lun = CTL_LUN(ctsio); 6678 struct stat_page *data; 6679 uint64_t rn, wn, rb, wb; 6680 struct bintime rt, wt; 6681 int i; 6682 6683 data = (struct stat_page *)page_index->page_data; 6684 6685 scsi_ulto2b(SLP_SAP, data->sap.hdr.param_code); 6686 data->sap.hdr.param_control = SLP_LBIN; 6687 data->sap.hdr.param_len = sizeof(struct scsi_log_stat_and_perf) - 6688 sizeof(struct scsi_log_param_header); 6689 rn = wn = rb = wb = 0; 6690 bintime_clear(&rt); 6691 bintime_clear(&wt); 6692 for (i = 0; i < CTL_MAX_PORTS; i++) { 6693 rn += lun->stats.ports[i].operations[CTL_STATS_READ]; 6694 wn += lun->stats.ports[i].operations[CTL_STATS_WRITE]; 6695 rb += lun->stats.ports[i].bytes[CTL_STATS_READ]; 6696 wb += lun->stats.ports[i].bytes[CTL_STATS_WRITE]; 6697 bintime_add(&rt, &lun->stats.ports[i].time[CTL_STATS_READ]); 6698 bintime_add(&wt, &lun->stats.ports[i].time[CTL_STATS_WRITE]); 6699 } 6700 scsi_u64to8b(rn, data->sap.read_num); 6701 scsi_u64to8b(wn, data->sap.write_num); 6702 if (lun->stats.blocksize > 0) { 6703 scsi_u64to8b(wb / lun->stats.blocksize, 6704 data->sap.recvieved_lba); 6705 scsi_u64to8b(rb / lun->stats.blocksize, 6706 data->sap.transmitted_lba); 6707 } 6708 scsi_u64to8b((uint64_t)rt.sec * 1000 + rt.frac / (UINT64_MAX / 1000), 6709 data->sap.read_int); 6710 scsi_u64to8b((uint64_t)wt.sec * 1000 + wt.frac / (UINT64_MAX / 1000), 6711 data->sap.write_int); 6712 scsi_u64to8b(0, data->sap.weighted_num); 6713 scsi_u64to8b(0, data->sap.weighted_int); 6714 scsi_ulto2b(SLP_IT, data->it.hdr.param_code); 6715 data->it.hdr.param_control = SLP_LBIN; 6716 data->it.hdr.param_len = sizeof(struct scsi_log_idle_time) - 6717 sizeof(struct scsi_log_param_header); 6718#ifdef CTL_TIME_IO 6719 scsi_u64to8b(lun->idle_time / SBT_1MS, data->it.idle_int); 6720#endif 6721 scsi_ulto2b(SLP_TI, data->ti.hdr.param_code); 6722 data->it.hdr.param_control = SLP_LBIN; 6723 data->ti.hdr.param_len = sizeof(struct scsi_log_time_interval) - 6724 sizeof(struct scsi_log_param_header); 6725 scsi_ulto4b(3, data->ti.exponent); 6726 scsi_ulto4b(1, data->ti.integer); 6727 return (0); 6728} 6729 6730int 6731ctl_ie_log_sense_handler(struct ctl_scsiio *ctsio, 6732 struct ctl_page_index *page_index, 6733 int pc) 6734{ 6735 struct ctl_lun *lun = CTL_LUN(ctsio); 6736 struct scsi_log_informational_exceptions *data; 6737 6738 data = (struct scsi_log_informational_exceptions *)page_index->page_data; 6739 6740 scsi_ulto2b(SLP_IE_GEN, data->hdr.param_code); 6741 data->hdr.param_control = SLP_LBIN; 6742 data->hdr.param_len = sizeof(struct scsi_log_informational_exceptions) - 6743 sizeof(struct scsi_log_param_header); 6744 data->ie_asc = lun->ie_asc; 6745 data->ie_ascq = lun->ie_ascq; 6746 data->temperature = 0xff; 6747 return (0); 6748} 6749 6750int 6751ctl_log_sense(struct ctl_scsiio *ctsio) 6752{ 6753 struct ctl_lun *lun = CTL_LUN(ctsio); 6754 int i, pc, page_code, subpage; 6755 int alloc_len, total_len; 6756 struct ctl_page_index *page_index; 6757 struct scsi_log_sense *cdb; 6758 struct scsi_log_header *header; 6759 6760 CTL_DEBUG_PRINT(("ctl_log_sense\n")); 6761 6762 cdb = (struct scsi_log_sense *)ctsio->cdb; 6763 pc = (cdb->page & SLS_PAGE_CTRL_MASK) >> 6; 6764 page_code = cdb->page & SLS_PAGE_CODE; 6765 subpage = cdb->subpage; 6766 alloc_len = scsi_2btoul(cdb->length); 6767 6768 page_index = NULL; 6769 for (i = 0; i < CTL_NUM_LOG_PAGES; i++) { 6770 page_index = &lun->log_pages.index[i]; 6771 6772 /* Look for the right page code */ 6773 if ((page_index->page_code & SL_PAGE_CODE) != page_code) 6774 continue; 6775 6776 /* Look for the right subpage or the subpage wildcard*/ 6777 if (page_index->subpage != subpage) 6778 continue; 6779 6780 break; 6781 } 6782 if (i >= CTL_NUM_LOG_PAGES) { 6783 ctl_set_invalid_field(ctsio, 6784 /*sks_valid*/ 1, 6785 /*command*/ 1, 6786 /*field*/ 2, 6787 /*bit_valid*/ 0, 6788 /*bit*/ 0); 6789 ctl_done((union ctl_io *)ctsio); 6790 return (CTL_RETVAL_COMPLETE); 6791 } 6792 6793 total_len = sizeof(struct scsi_log_header) + page_index->page_len; 6794 6795 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 6796 ctsio->kern_sg_entries = 0; 6797 ctsio->kern_data_resid = 0; 6798 ctsio->kern_rel_offset = 0; 6799 if (total_len < alloc_len) { 6800 ctsio->residual = alloc_len - total_len; 6801 ctsio->kern_data_len = total_len; 6802 ctsio->kern_total_len = total_len; 6803 } else { 6804 ctsio->residual = 0; 6805 ctsio->kern_data_len = alloc_len; 6806 ctsio->kern_total_len = alloc_len; 6807 } 6808 6809 header = (struct scsi_log_header *)ctsio->kern_data_ptr; 6810 header->page = page_index->page_code; 6811 if (page_index->page_code == SLS_LOGICAL_BLOCK_PROVISIONING) 6812 header->page |= SL_DS; 6813 if (page_index->subpage) { 6814 header->page |= SL_SPF; 6815 header->subpage = page_index->subpage; 6816 } 6817 scsi_ulto2b(page_index->page_len, header->datalen); 6818 6819 /* 6820 * Call the handler, if it exists, to update the 6821 * page to the latest values. 6822 */ 6823 if (page_index->sense_handler != NULL) 6824 page_index->sense_handler(ctsio, page_index, pc); 6825 6826 memcpy(header + 1, page_index->page_data, page_index->page_len); 6827 6828 ctl_set_success(ctsio); 6829 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6830 ctsio->be_move_done = ctl_config_move_done; 6831 ctl_datamove((union ctl_io *)ctsio); 6832 return (CTL_RETVAL_COMPLETE); 6833} 6834 6835int 6836ctl_read_capacity(struct ctl_scsiio *ctsio) 6837{ 6838 struct ctl_lun *lun = CTL_LUN(ctsio); 6839 struct scsi_read_capacity *cdb; 6840 struct scsi_read_capacity_data *data; 6841 uint32_t lba; 6842 6843 CTL_DEBUG_PRINT(("ctl_read_capacity\n")); 6844 6845 cdb = (struct scsi_read_capacity *)ctsio->cdb; 6846 6847 lba = scsi_4btoul(cdb->addr); 6848 if (((cdb->pmi & SRC_PMI) == 0) 6849 && (lba != 0)) { 6850 ctl_set_invalid_field(/*ctsio*/ ctsio, 6851 /*sks_valid*/ 1, 6852 /*command*/ 1, 6853 /*field*/ 2, 6854 /*bit_valid*/ 0, 6855 /*bit*/ 0); 6856 ctl_done((union ctl_io *)ctsio); 6857 return (CTL_RETVAL_COMPLETE); 6858 } 6859 6860 ctsio->kern_data_ptr = malloc(sizeof(*data), M_CTL, M_WAITOK | M_ZERO); 6861 data = (struct scsi_read_capacity_data *)ctsio->kern_data_ptr; 6862 ctsio->residual = 0; 6863 ctsio->kern_data_len = sizeof(*data); 6864 ctsio->kern_total_len = sizeof(*data); 6865 ctsio->kern_data_resid = 0; 6866 ctsio->kern_rel_offset = 0; 6867 ctsio->kern_sg_entries = 0; 6868 6869 /* 6870 * If the maximum LBA is greater than 0xfffffffe, the user must 6871 * issue a SERVICE ACTION IN (16) command, with the read capacity 6872 * serivce action set. 6873 */ 6874 if (lun->be_lun->maxlba > 0xfffffffe) 6875 scsi_ulto4b(0xffffffff, data->addr); 6876 else 6877 scsi_ulto4b(lun->be_lun->maxlba, data->addr); 6878 6879 /* 6880 * XXX KDM this may not be 512 bytes... 6881 */ 6882 scsi_ulto4b(lun->be_lun->blocksize, data->length); 6883 6884 ctl_set_success(ctsio); 6885 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6886 ctsio->be_move_done = ctl_config_move_done; 6887 ctl_datamove((union ctl_io *)ctsio); 6888 return (CTL_RETVAL_COMPLETE); 6889} 6890 6891int 6892ctl_read_capacity_16(struct ctl_scsiio *ctsio) 6893{ 6894 struct ctl_lun *lun = CTL_LUN(ctsio); 6895 struct scsi_read_capacity_16 *cdb; 6896 struct scsi_read_capacity_data_long *data; 6897 uint64_t lba; 6898 uint32_t alloc_len; 6899 6900 CTL_DEBUG_PRINT(("ctl_read_capacity_16\n")); 6901 6902 cdb = (struct scsi_read_capacity_16 *)ctsio->cdb; 6903 6904 alloc_len = scsi_4btoul(cdb->alloc_len); 6905 lba = scsi_8btou64(cdb->addr); 6906 6907 if ((cdb->reladr & SRC16_PMI) 6908 && (lba != 0)) { 6909 ctl_set_invalid_field(/*ctsio*/ ctsio, 6910 /*sks_valid*/ 1, 6911 /*command*/ 1, 6912 /*field*/ 2, 6913 /*bit_valid*/ 0, 6914 /*bit*/ 0); 6915 ctl_done((union ctl_io *)ctsio); 6916 return (CTL_RETVAL_COMPLETE); 6917 } 6918 6919 ctsio->kern_data_ptr = malloc(sizeof(*data), M_CTL, M_WAITOK | M_ZERO); 6920 data = (struct scsi_read_capacity_data_long *)ctsio->kern_data_ptr; 6921 6922 if (sizeof(*data) < alloc_len) { 6923 ctsio->residual = alloc_len - sizeof(*data); 6924 ctsio->kern_data_len = sizeof(*data); 6925 ctsio->kern_total_len = sizeof(*data); 6926 } else { 6927 ctsio->residual = 0; 6928 ctsio->kern_data_len = alloc_len; 6929 ctsio->kern_total_len = alloc_len; 6930 } 6931 ctsio->kern_data_resid = 0; 6932 ctsio->kern_rel_offset = 0; 6933 ctsio->kern_sg_entries = 0; 6934 6935 scsi_u64to8b(lun->be_lun->maxlba, data->addr); 6936 /* XXX KDM this may not be 512 bytes... */ 6937 scsi_ulto4b(lun->be_lun->blocksize, data->length); 6938 data->prot_lbppbe = lun->be_lun->pblockexp & SRC16_LBPPBE; 6939 scsi_ulto2b(lun->be_lun->pblockoff & SRC16_LALBA_A, data->lalba_lbp); 6940 if (lun->be_lun->flags & CTL_LUN_FLAG_UNMAP) 6941 data->lalba_lbp[0] |= SRC16_LBPME | SRC16_LBPRZ; 6942 6943 ctl_set_success(ctsio); 6944 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6945 ctsio->be_move_done = ctl_config_move_done; 6946 ctl_datamove((union ctl_io *)ctsio); 6947 return (CTL_RETVAL_COMPLETE); 6948} 6949 6950int 6951ctl_get_lba_status(struct ctl_scsiio *ctsio) 6952{ 6953 struct ctl_lun *lun = CTL_LUN(ctsio); 6954 struct scsi_get_lba_status *cdb; 6955 struct scsi_get_lba_status_data *data; 6956 struct ctl_lba_len_flags *lbalen; 6957 uint64_t lba; 6958 uint32_t alloc_len, total_len; 6959 int retval; 6960 6961 CTL_DEBUG_PRINT(("ctl_get_lba_status\n")); 6962 6963 cdb = (struct scsi_get_lba_status *)ctsio->cdb; 6964 lba = scsi_8btou64(cdb->addr); 6965 alloc_len = scsi_4btoul(cdb->alloc_len); 6966 6967 if (lba > lun->be_lun->maxlba) { 6968 ctl_set_lba_out_of_range(ctsio, lba); 6969 ctl_done((union ctl_io *)ctsio); 6970 return (CTL_RETVAL_COMPLETE); 6971 } 6972 6973 total_len = sizeof(*data) + sizeof(data->descr[0]); 6974 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 6975 data = (struct scsi_get_lba_status_data *)ctsio->kern_data_ptr; 6976 6977 if (total_len < alloc_len) { 6978 ctsio->residual = alloc_len - total_len; 6979 ctsio->kern_data_len = total_len; 6980 ctsio->kern_total_len = total_len; 6981 } else { 6982 ctsio->residual = 0; 6983 ctsio->kern_data_len = alloc_len; 6984 ctsio->kern_total_len = alloc_len; 6985 } 6986 ctsio->kern_data_resid = 0; 6987 ctsio->kern_rel_offset = 0; 6988 ctsio->kern_sg_entries = 0; 6989 6990 /* Fill dummy data in case backend can't tell anything. */ 6991 scsi_ulto4b(4 + sizeof(data->descr[0]), data->length); 6992 scsi_u64to8b(lba, data->descr[0].addr); 6993 scsi_ulto4b(MIN(UINT32_MAX, lun->be_lun->maxlba + 1 - lba), 6994 data->descr[0].length); 6995 data->descr[0].status = 0; /* Mapped or unknown. */ 6996 6997 ctl_set_success(ctsio); 6998 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6999 ctsio->be_move_done = ctl_config_move_done; 7000 7001 lbalen = (struct ctl_lba_len_flags *)&ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 7002 lbalen->lba = lba; 7003 lbalen->len = total_len; 7004 lbalen->flags = 0; 7005 retval = lun->backend->config_read((union ctl_io *)ctsio); 7006 return (CTL_RETVAL_COMPLETE); 7007} 7008 7009int 7010ctl_read_defect(struct ctl_scsiio *ctsio) 7011{ 7012 struct scsi_read_defect_data_10 *ccb10; 7013 struct scsi_read_defect_data_12 *ccb12; 7014 struct scsi_read_defect_data_hdr_10 *data10; 7015 struct scsi_read_defect_data_hdr_12 *data12; 7016 uint32_t alloc_len, data_len; 7017 uint8_t format; 7018 7019 CTL_DEBUG_PRINT(("ctl_read_defect\n")); 7020 7021 if (ctsio->cdb[0] == READ_DEFECT_DATA_10) { 7022 ccb10 = (struct scsi_read_defect_data_10 *)&ctsio->cdb; 7023 format = ccb10->format; 7024 alloc_len = scsi_2btoul(ccb10->alloc_length); 7025 data_len = sizeof(*data10); 7026 } else { 7027 ccb12 = (struct scsi_read_defect_data_12 *)&ctsio->cdb; 7028 format = ccb12->format; 7029 alloc_len = scsi_4btoul(ccb12->alloc_length); 7030 data_len = sizeof(*data12); 7031 } 7032 if (alloc_len == 0) { 7033 ctl_set_success(ctsio); 7034 ctl_done((union ctl_io *)ctsio); 7035 return (CTL_RETVAL_COMPLETE); 7036 } 7037 7038 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 7039 if (data_len < alloc_len) { 7040 ctsio->residual = alloc_len - data_len; 7041 ctsio->kern_data_len = data_len; 7042 ctsio->kern_total_len = data_len; 7043 } else { 7044 ctsio->residual = 0; 7045 ctsio->kern_data_len = alloc_len; 7046 ctsio->kern_total_len = alloc_len; 7047 } 7048 ctsio->kern_data_resid = 0; 7049 ctsio->kern_rel_offset = 0; 7050 ctsio->kern_sg_entries = 0; 7051 7052 if (ctsio->cdb[0] == READ_DEFECT_DATA_10) { 7053 data10 = (struct scsi_read_defect_data_hdr_10 *) 7054 ctsio->kern_data_ptr; 7055 data10->format = format; 7056 scsi_ulto2b(0, data10->length); 7057 } else { 7058 data12 = (struct scsi_read_defect_data_hdr_12 *) 7059 ctsio->kern_data_ptr; 7060 data12->format = format; 7061 scsi_ulto2b(0, data12->generation); 7062 scsi_ulto4b(0, data12->length); 7063 } 7064 7065 ctl_set_success(ctsio); 7066 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7067 ctsio->be_move_done = ctl_config_move_done; 7068 ctl_datamove((union ctl_io *)ctsio); 7069 return (CTL_RETVAL_COMPLETE); 7070} 7071 7072int 7073ctl_report_tagret_port_groups(struct ctl_scsiio *ctsio) 7074{ 7075 struct ctl_softc *softc = CTL_SOFTC(ctsio); 7076 struct ctl_lun *lun = CTL_LUN(ctsio); 7077 struct scsi_maintenance_in *cdb; 7078 int retval; 7079 int alloc_len, ext, total_len = 0, g, pc, pg, ts, os; 7080 int num_ha_groups, num_target_ports, shared_group; 7081 struct ctl_port *port; 7082 struct scsi_target_group_data *rtg_ptr; 7083 struct scsi_target_group_data_extended *rtg_ext_ptr; 7084 struct scsi_target_port_group_descriptor *tpg_desc; 7085 7086 CTL_DEBUG_PRINT(("ctl_report_tagret_port_groups\n")); 7087 7088 cdb = (struct scsi_maintenance_in *)ctsio->cdb; 7089 retval = CTL_RETVAL_COMPLETE; 7090 7091 switch (cdb->byte2 & STG_PDF_MASK) { 7092 case STG_PDF_LENGTH: 7093 ext = 0; 7094 break; 7095 case STG_PDF_EXTENDED: 7096 ext = 1; 7097 break; 7098 default: 7099 ctl_set_invalid_field(/*ctsio*/ ctsio, 7100 /*sks_valid*/ 1, 7101 /*command*/ 1, 7102 /*field*/ 2, 7103 /*bit_valid*/ 1, 7104 /*bit*/ 5); 7105 ctl_done((union ctl_io *)ctsio); 7106 return(retval); 7107 } 7108 7109 num_target_ports = 0; 7110 shared_group = (softc->is_single != 0); 7111 mtx_lock(&softc->ctl_lock); 7112 STAILQ_FOREACH(port, &softc->port_list, links) { 7113 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 7114 continue; 7115 if (ctl_lun_map_to_port(port, lun->lun) == UINT32_MAX) 7116 continue; 7117 num_target_ports++; 7118 if (port->status & CTL_PORT_STATUS_HA_SHARED) 7119 shared_group = 1; 7120 } 7121 mtx_unlock(&softc->ctl_lock); 7122 num_ha_groups = (softc->is_single) ? 0 : NUM_HA_SHELVES; 7123 7124 if (ext) 7125 total_len = sizeof(struct scsi_target_group_data_extended); 7126 else 7127 total_len = sizeof(struct scsi_target_group_data); 7128 total_len += sizeof(struct scsi_target_port_group_descriptor) * 7129 (shared_group + num_ha_groups) + 7130 sizeof(struct scsi_target_port_descriptor) * num_target_ports; 7131 7132 alloc_len = scsi_4btoul(cdb->length); 7133 7134 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7135 7136 ctsio->kern_sg_entries = 0; 7137 7138 if (total_len < alloc_len) { 7139 ctsio->residual = alloc_len - total_len; 7140 ctsio->kern_data_len = total_len; 7141 ctsio->kern_total_len = total_len; 7142 } else { 7143 ctsio->residual = 0; 7144 ctsio->kern_data_len = alloc_len; 7145 ctsio->kern_total_len = alloc_len; 7146 } 7147 ctsio->kern_data_resid = 0; 7148 ctsio->kern_rel_offset = 0; 7149 7150 if (ext) { 7151 rtg_ext_ptr = (struct scsi_target_group_data_extended *) 7152 ctsio->kern_data_ptr; 7153 scsi_ulto4b(total_len - 4, rtg_ext_ptr->length); 7154 rtg_ext_ptr->format_type = 0x10; 7155 rtg_ext_ptr->implicit_transition_time = 0; 7156 tpg_desc = &rtg_ext_ptr->groups[0]; 7157 } else { 7158 rtg_ptr = (struct scsi_target_group_data *) 7159 ctsio->kern_data_ptr; 7160 scsi_ulto4b(total_len - 4, rtg_ptr->length); 7161 tpg_desc = &rtg_ptr->groups[0]; 7162 } 7163 7164 mtx_lock(&softc->ctl_lock); 7165 pg = softc->port_min / softc->port_cnt; 7166 if (lun->flags & (CTL_LUN_PRIMARY_SC | CTL_LUN_PEER_SC_PRIMARY)) { 7167 /* Some shelf is known to be primary. */ 7168 if (softc->ha_link == CTL_HA_LINK_OFFLINE) 7169 os = TPG_ASYMMETRIC_ACCESS_UNAVAILABLE; 7170 else if (softc->ha_link == CTL_HA_LINK_UNKNOWN) 7171 os = TPG_ASYMMETRIC_ACCESS_TRANSITIONING; 7172 else if (softc->ha_mode == CTL_HA_MODE_ACT_STBY) 7173 os = TPG_ASYMMETRIC_ACCESS_STANDBY; 7174 else 7175 os = TPG_ASYMMETRIC_ACCESS_NONOPTIMIZED; 7176 if (lun->flags & CTL_LUN_PRIMARY_SC) { 7177 ts = TPG_ASYMMETRIC_ACCESS_OPTIMIZED; 7178 } else { 7179 ts = os; 7180 os = TPG_ASYMMETRIC_ACCESS_OPTIMIZED; 7181 } 7182 } else { 7183 /* No known primary shelf. */ 7184 if (softc->ha_link == CTL_HA_LINK_OFFLINE) { 7185 ts = TPG_ASYMMETRIC_ACCESS_UNAVAILABLE; 7186 os = TPG_ASYMMETRIC_ACCESS_OPTIMIZED; 7187 } else if (softc->ha_link == CTL_HA_LINK_UNKNOWN) { 7188 ts = TPG_ASYMMETRIC_ACCESS_TRANSITIONING; 7189 os = TPG_ASYMMETRIC_ACCESS_OPTIMIZED; 7190 } else { 7191 ts = os = TPG_ASYMMETRIC_ACCESS_TRANSITIONING; 7192 } 7193 } 7194 if (shared_group) { 7195 tpg_desc->pref_state = ts; 7196 tpg_desc->support = TPG_AO_SUP | TPG_AN_SUP | TPG_S_SUP | 7197 TPG_U_SUP | TPG_T_SUP; 7198 scsi_ulto2b(1, tpg_desc->target_port_group); 7199 tpg_desc->status = TPG_IMPLICIT; 7200 pc = 0; 7201 STAILQ_FOREACH(port, &softc->port_list, links) { 7202 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 7203 continue; 7204 if (!softc->is_single && 7205 (port->status & CTL_PORT_STATUS_HA_SHARED) == 0) 7206 continue; 7207 if (ctl_lun_map_to_port(port, lun->lun) == UINT32_MAX) 7208 continue; 7209 scsi_ulto2b(port->targ_port, tpg_desc->descriptors[pc]. 7210 relative_target_port_identifier); 7211 pc++; 7212 } 7213 tpg_desc->target_port_count = pc; 7214 tpg_desc = (struct scsi_target_port_group_descriptor *) 7215 &tpg_desc->descriptors[pc]; 7216 } 7217 for (g = 0; g < num_ha_groups; g++) { 7218 tpg_desc->pref_state = (g == pg) ? ts : os; 7219 tpg_desc->support = TPG_AO_SUP | TPG_AN_SUP | TPG_S_SUP | 7220 TPG_U_SUP | TPG_T_SUP; 7221 scsi_ulto2b(2 + g, tpg_desc->target_port_group); 7222 tpg_desc->status = TPG_IMPLICIT; 7223 pc = 0; 7224 STAILQ_FOREACH(port, &softc->port_list, links) { 7225 if (port->targ_port < g * softc->port_cnt || 7226 port->targ_port >= (g + 1) * softc->port_cnt) 7227 continue; 7228 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 7229 continue; 7230 if (port->status & CTL_PORT_STATUS_HA_SHARED) 7231 continue; 7232 if (ctl_lun_map_to_port(port, lun->lun) == UINT32_MAX) 7233 continue; 7234 scsi_ulto2b(port->targ_port, tpg_desc->descriptors[pc]. 7235 relative_target_port_identifier); 7236 pc++; 7237 } 7238 tpg_desc->target_port_count = pc; 7239 tpg_desc = (struct scsi_target_port_group_descriptor *) 7240 &tpg_desc->descriptors[pc]; 7241 } 7242 mtx_unlock(&softc->ctl_lock); 7243 7244 ctl_set_success(ctsio); 7245 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7246 ctsio->be_move_done = ctl_config_move_done; 7247 ctl_datamove((union ctl_io *)ctsio); 7248 return(retval); 7249} 7250 7251int 7252ctl_report_supported_opcodes(struct ctl_scsiio *ctsio) 7253{ 7254 struct ctl_lun *lun = CTL_LUN(ctsio); 7255 struct scsi_report_supported_opcodes *cdb; 7256 const struct ctl_cmd_entry *entry, *sentry; 7257 struct scsi_report_supported_opcodes_all *all; 7258 struct scsi_report_supported_opcodes_descr *descr; 7259 struct scsi_report_supported_opcodes_one *one; 7260 int retval; 7261 int alloc_len, total_len; 7262 int opcode, service_action, i, j, num; 7263 7264 CTL_DEBUG_PRINT(("ctl_report_supported_opcodes\n")); 7265 7266 cdb = (struct scsi_report_supported_opcodes *)ctsio->cdb; 7267 retval = CTL_RETVAL_COMPLETE; 7268 7269 opcode = cdb->requested_opcode; 7270 service_action = scsi_2btoul(cdb->requested_service_action); 7271 switch (cdb->options & RSO_OPTIONS_MASK) { 7272 case RSO_OPTIONS_ALL: 7273 num = 0; 7274 for (i = 0; i < 256; i++) { 7275 entry = &ctl_cmd_table[i]; 7276 if (entry->flags & CTL_CMD_FLAG_SA5) { 7277 for (j = 0; j < 32; j++) { 7278 sentry = &((const struct ctl_cmd_entry *) 7279 entry->execute)[j]; 7280 if (ctl_cmd_applicable( 7281 lun->be_lun->lun_type, sentry)) 7282 num++; 7283 } 7284 } else { 7285 if (ctl_cmd_applicable(lun->be_lun->lun_type, 7286 entry)) 7287 num++; 7288 } 7289 } 7290 total_len = sizeof(struct scsi_report_supported_opcodes_all) + 7291 num * sizeof(struct scsi_report_supported_opcodes_descr); 7292 break; 7293 case RSO_OPTIONS_OC: 7294 if (ctl_cmd_table[opcode].flags & CTL_CMD_FLAG_SA5) { 7295 ctl_set_invalid_field(/*ctsio*/ ctsio, 7296 /*sks_valid*/ 1, 7297 /*command*/ 1, 7298 /*field*/ 2, 7299 /*bit_valid*/ 1, 7300 /*bit*/ 2); 7301 ctl_done((union ctl_io *)ctsio); 7302 return (CTL_RETVAL_COMPLETE); 7303 } 7304 total_len = sizeof(struct scsi_report_supported_opcodes_one) + 32; 7305 break; 7306 case RSO_OPTIONS_OC_SA: 7307 if ((ctl_cmd_table[opcode].flags & CTL_CMD_FLAG_SA5) == 0 || 7308 service_action >= 32) { 7309 ctl_set_invalid_field(/*ctsio*/ ctsio, 7310 /*sks_valid*/ 1, 7311 /*command*/ 1, 7312 /*field*/ 2, 7313 /*bit_valid*/ 1, 7314 /*bit*/ 2); 7315 ctl_done((union ctl_io *)ctsio); 7316 return (CTL_RETVAL_COMPLETE); 7317 } 7318 /* FALLTHROUGH */ 7319 case RSO_OPTIONS_OC_ASA: 7320 total_len = sizeof(struct scsi_report_supported_opcodes_one) + 32; 7321 break; 7322 default: 7323 ctl_set_invalid_field(/*ctsio*/ ctsio, 7324 /*sks_valid*/ 1, 7325 /*command*/ 1, 7326 /*field*/ 2, 7327 /*bit_valid*/ 1, 7328 /*bit*/ 2); 7329 ctl_done((union ctl_io *)ctsio); 7330 return (CTL_RETVAL_COMPLETE); 7331 } 7332 7333 alloc_len = scsi_4btoul(cdb->length); 7334 7335 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7336 7337 ctsio->kern_sg_entries = 0; 7338 7339 if (total_len < alloc_len) { 7340 ctsio->residual = alloc_len - total_len; 7341 ctsio->kern_data_len = total_len; 7342 ctsio->kern_total_len = total_len; 7343 } else { 7344 ctsio->residual = 0; 7345 ctsio->kern_data_len = alloc_len; 7346 ctsio->kern_total_len = alloc_len; 7347 } 7348 ctsio->kern_data_resid = 0; 7349 ctsio->kern_rel_offset = 0; 7350 7351 switch (cdb->options & RSO_OPTIONS_MASK) { 7352 case RSO_OPTIONS_ALL: 7353 all = (struct scsi_report_supported_opcodes_all *) 7354 ctsio->kern_data_ptr; 7355 num = 0; 7356 for (i = 0; i < 256; i++) { 7357 entry = &ctl_cmd_table[i]; 7358 if (entry->flags & CTL_CMD_FLAG_SA5) { 7359 for (j = 0; j < 32; j++) { 7360 sentry = &((const struct ctl_cmd_entry *) 7361 entry->execute)[j]; 7362 if (!ctl_cmd_applicable( 7363 lun->be_lun->lun_type, sentry)) 7364 continue; 7365 descr = &all->descr[num++]; 7366 descr->opcode = i; 7367 scsi_ulto2b(j, descr->service_action); 7368 descr->flags = RSO_SERVACTV; 7369 scsi_ulto2b(sentry->length, 7370 descr->cdb_length); 7371 } 7372 } else { 7373 if (!ctl_cmd_applicable(lun->be_lun->lun_type, 7374 entry)) 7375 continue; 7376 descr = &all->descr[num++]; 7377 descr->opcode = i; 7378 scsi_ulto2b(0, descr->service_action); 7379 descr->flags = 0; 7380 scsi_ulto2b(entry->length, descr->cdb_length); 7381 } 7382 } 7383 scsi_ulto4b( 7384 num * sizeof(struct scsi_report_supported_opcodes_descr), 7385 all->length); 7386 break; 7387 case RSO_OPTIONS_OC: 7388 one = (struct scsi_report_supported_opcodes_one *) 7389 ctsio->kern_data_ptr; 7390 entry = &ctl_cmd_table[opcode]; 7391 goto fill_one; 7392 case RSO_OPTIONS_OC_SA: 7393 one = (struct scsi_report_supported_opcodes_one *) 7394 ctsio->kern_data_ptr; 7395 entry = &ctl_cmd_table[opcode]; 7396 entry = &((const struct ctl_cmd_entry *) 7397 entry->execute)[service_action]; 7398fill_one: 7399 if (ctl_cmd_applicable(lun->be_lun->lun_type, entry)) { 7400 one->support = 3; 7401 scsi_ulto2b(entry->length, one->cdb_length); 7402 one->cdb_usage[0] = opcode; 7403 memcpy(&one->cdb_usage[1], entry->usage, 7404 entry->length - 1); 7405 } else 7406 one->support = 1; 7407 break; 7408 case RSO_OPTIONS_OC_ASA: 7409 one = (struct scsi_report_supported_opcodes_one *) 7410 ctsio->kern_data_ptr; 7411 entry = &ctl_cmd_table[opcode]; 7412 if (entry->flags & CTL_CMD_FLAG_SA5) { 7413 entry = &((const struct ctl_cmd_entry *) 7414 entry->execute)[service_action]; 7415 } else if (service_action != 0) { 7416 one->support = 1; 7417 break; 7418 } 7419 goto fill_one; 7420 } 7421 7422 ctl_set_success(ctsio); 7423 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7424 ctsio->be_move_done = ctl_config_move_done; 7425 ctl_datamove((union ctl_io *)ctsio); 7426 return(retval); 7427} 7428 7429int 7430ctl_report_supported_tmf(struct ctl_scsiio *ctsio) 7431{ 7432 struct scsi_report_supported_tmf *cdb; 7433 struct scsi_report_supported_tmf_ext_data *data; 7434 int retval; 7435 int alloc_len, total_len; 7436 7437 CTL_DEBUG_PRINT(("ctl_report_supported_tmf\n")); 7438 7439 cdb = (struct scsi_report_supported_tmf *)ctsio->cdb; 7440 7441 retval = CTL_RETVAL_COMPLETE; 7442 7443 if (cdb->options & RST_REPD) 7444 total_len = sizeof(struct scsi_report_supported_tmf_ext_data); 7445 else 7446 total_len = sizeof(struct scsi_report_supported_tmf_data); 7447 alloc_len = scsi_4btoul(cdb->length); 7448 7449 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7450 7451 ctsio->kern_sg_entries = 0; 7452 7453 if (total_len < alloc_len) { 7454 ctsio->residual = alloc_len - total_len; 7455 ctsio->kern_data_len = total_len; 7456 ctsio->kern_total_len = total_len; 7457 } else { 7458 ctsio->residual = 0; 7459 ctsio->kern_data_len = alloc_len; 7460 ctsio->kern_total_len = alloc_len; 7461 } 7462 ctsio->kern_data_resid = 0; 7463 ctsio->kern_rel_offset = 0; 7464 7465 data = (struct scsi_report_supported_tmf_ext_data *)ctsio->kern_data_ptr; 7466 data->byte1 |= RST_ATS | RST_ATSS | RST_CTSS | RST_LURS | RST_QTS | 7467 RST_TRS; 7468 data->byte2 |= RST_QAES | RST_QTSS | RST_ITNRS; 7469 data->length = total_len - 4; 7470 7471 ctl_set_success(ctsio); 7472 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7473 ctsio->be_move_done = ctl_config_move_done; 7474 ctl_datamove((union ctl_io *)ctsio); 7475 return (retval); 7476} 7477 7478int 7479ctl_report_timestamp(struct ctl_scsiio *ctsio) 7480{ 7481 struct scsi_report_timestamp *cdb; 7482 struct scsi_report_timestamp_data *data; 7483 struct timeval tv; 7484 int64_t timestamp; 7485 int retval; 7486 int alloc_len, total_len; 7487 7488 CTL_DEBUG_PRINT(("ctl_report_timestamp\n")); 7489 7490 cdb = (struct scsi_report_timestamp *)ctsio->cdb; 7491 7492 retval = CTL_RETVAL_COMPLETE; 7493 7494 total_len = sizeof(struct scsi_report_timestamp_data); 7495 alloc_len = scsi_4btoul(cdb->length); 7496 7497 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7498 7499 ctsio->kern_sg_entries = 0; 7500 7501 if (total_len < alloc_len) { 7502 ctsio->residual = alloc_len - total_len; 7503 ctsio->kern_data_len = total_len; 7504 ctsio->kern_total_len = total_len; 7505 } else { 7506 ctsio->residual = 0; 7507 ctsio->kern_data_len = alloc_len; 7508 ctsio->kern_total_len = alloc_len; 7509 } 7510 ctsio->kern_data_resid = 0; 7511 ctsio->kern_rel_offset = 0; 7512 7513 data = (struct scsi_report_timestamp_data *)ctsio->kern_data_ptr; 7514 scsi_ulto2b(sizeof(*data) - 2, data->length); 7515 data->origin = RTS_ORIG_OUTSIDE; 7516 getmicrotime(&tv); 7517 timestamp = (int64_t)tv.tv_sec * 1000 + tv.tv_usec / 1000; 7518 scsi_ulto4b(timestamp >> 16, data->timestamp); 7519 scsi_ulto2b(timestamp & 0xffff, &data->timestamp[4]); 7520 7521 ctl_set_success(ctsio); 7522 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7523 ctsio->be_move_done = ctl_config_move_done; 7524 ctl_datamove((union ctl_io *)ctsio); 7525 return (retval); 7526} 7527 7528int 7529ctl_persistent_reserve_in(struct ctl_scsiio *ctsio) 7530{ 7531 struct ctl_softc *softc = CTL_SOFTC(ctsio); 7532 struct ctl_lun *lun = CTL_LUN(ctsio); 7533 struct scsi_per_res_in *cdb; 7534 int alloc_len, total_len = 0; 7535 /* struct scsi_per_res_in_rsrv in_data; */ 7536 uint64_t key; 7537 7538 CTL_DEBUG_PRINT(("ctl_persistent_reserve_in\n")); 7539 7540 cdb = (struct scsi_per_res_in *)ctsio->cdb; 7541 7542 alloc_len = scsi_2btoul(cdb->length); 7543 7544retry: 7545 mtx_lock(&lun->lun_lock); 7546 switch (cdb->action) { 7547 case SPRI_RK: /* read keys */ 7548 total_len = sizeof(struct scsi_per_res_in_keys) + 7549 lun->pr_key_count * 7550 sizeof(struct scsi_per_res_key); 7551 break; 7552 case SPRI_RR: /* read reservation */ 7553 if (lun->flags & CTL_LUN_PR_RESERVED) 7554 total_len = sizeof(struct scsi_per_res_in_rsrv); 7555 else 7556 total_len = sizeof(struct scsi_per_res_in_header); 7557 break; 7558 case SPRI_RC: /* report capabilities */ 7559 total_len = sizeof(struct scsi_per_res_cap); 7560 break; 7561 case SPRI_RS: /* read full status */ 7562 total_len = sizeof(struct scsi_per_res_in_header) + 7563 (sizeof(struct scsi_per_res_in_full_desc) + 256) * 7564 lun->pr_key_count; 7565 break; 7566 default: 7567 panic("%s: Invalid PR type %#x", __func__, cdb->action); 7568 } 7569 mtx_unlock(&lun->lun_lock); 7570 7571 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7572 7573 if (total_len < alloc_len) { 7574 ctsio->residual = alloc_len - total_len; 7575 ctsio->kern_data_len = total_len; 7576 ctsio->kern_total_len = total_len; 7577 } else { 7578 ctsio->residual = 0; 7579 ctsio->kern_data_len = alloc_len; 7580 ctsio->kern_total_len = alloc_len; 7581 } 7582 7583 ctsio->kern_data_resid = 0; 7584 ctsio->kern_rel_offset = 0; 7585 ctsio->kern_sg_entries = 0; 7586 7587 mtx_lock(&lun->lun_lock); 7588 switch (cdb->action) { 7589 case SPRI_RK: { // read keys 7590 struct scsi_per_res_in_keys *res_keys; 7591 int i, key_count; 7592 7593 res_keys = (struct scsi_per_res_in_keys*)ctsio->kern_data_ptr; 7594 7595 /* 7596 * We had to drop the lock to allocate our buffer, which 7597 * leaves time for someone to come in with another 7598 * persistent reservation. (That is unlikely, though, 7599 * since this should be the only persistent reservation 7600 * command active right now.) 7601 */ 7602 if (total_len != (sizeof(struct scsi_per_res_in_keys) + 7603 (lun->pr_key_count * 7604 sizeof(struct scsi_per_res_key)))){ 7605 mtx_unlock(&lun->lun_lock); 7606 free(ctsio->kern_data_ptr, M_CTL); 7607 printf("%s: reservation length changed, retrying\n", 7608 __func__); 7609 goto retry; 7610 } 7611 7612 scsi_ulto4b(lun->pr_generation, res_keys->header.generation); 7613 7614 scsi_ulto4b(sizeof(struct scsi_per_res_key) * 7615 lun->pr_key_count, res_keys->header.length); 7616 7617 for (i = 0, key_count = 0; i < CTL_MAX_INITIATORS; i++) { 7618 if ((key = ctl_get_prkey(lun, i)) == 0) 7619 continue; 7620 7621 /* 7622 * We used lun->pr_key_count to calculate the 7623 * size to allocate. If it turns out the number of 7624 * initiators with the registered flag set is 7625 * larger than that (i.e. they haven't been kept in 7626 * sync), we've got a problem. 7627 */ 7628 if (key_count >= lun->pr_key_count) { 7629 key_count++; 7630 continue; 7631 } 7632 scsi_u64to8b(key, res_keys->keys[key_count].key); 7633 key_count++; 7634 } 7635 break; 7636 } 7637 case SPRI_RR: { // read reservation 7638 struct scsi_per_res_in_rsrv *res; 7639 int tmp_len, header_only; 7640 7641 res = (struct scsi_per_res_in_rsrv *)ctsio->kern_data_ptr; 7642 7643 scsi_ulto4b(lun->pr_generation, res->header.generation); 7644 7645 if (lun->flags & CTL_LUN_PR_RESERVED) 7646 { 7647 tmp_len = sizeof(struct scsi_per_res_in_rsrv); 7648 scsi_ulto4b(sizeof(struct scsi_per_res_in_rsrv_data), 7649 res->header.length); 7650 header_only = 0; 7651 } else { 7652 tmp_len = sizeof(struct scsi_per_res_in_header); 7653 scsi_ulto4b(0, res->header.length); 7654 header_only = 1; 7655 } 7656 7657 /* 7658 * We had to drop the lock to allocate our buffer, which 7659 * leaves time for someone to come in with another 7660 * persistent reservation. (That is unlikely, though, 7661 * since this should be the only persistent reservation 7662 * command active right now.) 7663 */ 7664 if (tmp_len != total_len) { 7665 mtx_unlock(&lun->lun_lock); 7666 free(ctsio->kern_data_ptr, M_CTL); 7667 printf("%s: reservation status changed, retrying\n", 7668 __func__); 7669 goto retry; 7670 } 7671 7672 /* 7673 * No reservation held, so we're done. 7674 */ 7675 if (header_only != 0) 7676 break; 7677 7678 /* 7679 * If the registration is an All Registrants type, the key 7680 * is 0, since it doesn't really matter. 7681 */ 7682 if (lun->pr_res_idx != CTL_PR_ALL_REGISTRANTS) { 7683 scsi_u64to8b(ctl_get_prkey(lun, lun->pr_res_idx), 7684 res->data.reservation); 7685 } 7686 res->data.scopetype = lun->pr_res_type; 7687 break; 7688 } 7689 case SPRI_RC: //report capabilities 7690 { 7691 struct scsi_per_res_cap *res_cap; 7692 uint16_t type_mask; 7693 7694 res_cap = (struct scsi_per_res_cap *)ctsio->kern_data_ptr; 7695 scsi_ulto2b(sizeof(*res_cap), res_cap->length); 7696 res_cap->flags1 = SPRI_CRH; 7697 res_cap->flags2 = SPRI_TMV | SPRI_ALLOW_5; 7698 type_mask = SPRI_TM_WR_EX_AR | 7699 SPRI_TM_EX_AC_RO | 7700 SPRI_TM_WR_EX_RO | 7701 SPRI_TM_EX_AC | 7702 SPRI_TM_WR_EX | 7703 SPRI_TM_EX_AC_AR; 7704 scsi_ulto2b(type_mask, res_cap->type_mask); 7705 break; 7706 } 7707 case SPRI_RS: { // read full status 7708 struct scsi_per_res_in_full *res_status; 7709 struct scsi_per_res_in_full_desc *res_desc; 7710 struct ctl_port *port; 7711 int i, len; 7712 7713 res_status = (struct scsi_per_res_in_full*)ctsio->kern_data_ptr; 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 (total_len < (sizeof(struct scsi_per_res_in_header) + 7723 (sizeof(struct scsi_per_res_in_full_desc) + 256) * 7724 lun->pr_key_count)){ 7725 mtx_unlock(&lun->lun_lock); 7726 free(ctsio->kern_data_ptr, M_CTL); 7727 printf("%s: reservation length changed, retrying\n", 7728 __func__); 7729 goto retry; 7730 } 7731 7732 scsi_ulto4b(lun->pr_generation, res_status->header.generation); 7733 7734 res_desc = &res_status->desc[0]; 7735 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 7736 if ((key = ctl_get_prkey(lun, i)) == 0) 7737 continue; 7738 7739 scsi_u64to8b(key, res_desc->res_key.key); 7740 if ((lun->flags & CTL_LUN_PR_RESERVED) && 7741 (lun->pr_res_idx == i || 7742 lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS)) { 7743 res_desc->flags = SPRI_FULL_R_HOLDER; 7744 res_desc->scopetype = lun->pr_res_type; 7745 } 7746 scsi_ulto2b(i / CTL_MAX_INIT_PER_PORT, 7747 res_desc->rel_trgt_port_id); 7748 len = 0; 7749 port = softc->ctl_ports[i / CTL_MAX_INIT_PER_PORT]; 7750 if (port != NULL) 7751 len = ctl_create_iid(port, 7752 i % CTL_MAX_INIT_PER_PORT, 7753 res_desc->transport_id); 7754 scsi_ulto4b(len, res_desc->additional_length); 7755 res_desc = (struct scsi_per_res_in_full_desc *) 7756 &res_desc->transport_id[len]; 7757 } 7758 scsi_ulto4b((uint8_t *)res_desc - (uint8_t *)&res_status->desc[0], 7759 res_status->header.length); 7760 break; 7761 } 7762 default: 7763 panic("%s: Invalid PR type %#x", __func__, cdb->action); 7764 } 7765 mtx_unlock(&lun->lun_lock); 7766 7767 ctl_set_success(ctsio); 7768 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7769 ctsio->be_move_done = ctl_config_move_done; 7770 ctl_datamove((union ctl_io *)ctsio); 7771 return (CTL_RETVAL_COMPLETE); 7772} 7773 7774/* 7775 * Returns 0 if ctl_persistent_reserve_out() should continue, non-zero if 7776 * it should return. 7777 */ 7778static int 7779ctl_pro_preempt(struct ctl_softc *softc, struct ctl_lun *lun, uint64_t res_key, 7780 uint64_t sa_res_key, uint8_t type, uint32_t residx, 7781 struct ctl_scsiio *ctsio, struct scsi_per_res_out *cdb, 7782 struct scsi_per_res_out_parms* param) 7783{ 7784 union ctl_ha_msg persis_io; 7785 int i; 7786 7787 mtx_lock(&lun->lun_lock); 7788 if (sa_res_key == 0) { 7789 if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS) { 7790 /* validate scope and type */ 7791 if ((cdb->scope_type & SPR_SCOPE_MASK) != 7792 SPR_LU_SCOPE) { 7793 mtx_unlock(&lun->lun_lock); 7794 ctl_set_invalid_field(/*ctsio*/ ctsio, 7795 /*sks_valid*/ 1, 7796 /*command*/ 1, 7797 /*field*/ 2, 7798 /*bit_valid*/ 1, 7799 /*bit*/ 4); 7800 ctl_done((union ctl_io *)ctsio); 7801 return (1); 7802 } 7803 7804 if (type>8 || type==2 || type==4 || type==0) { 7805 mtx_unlock(&lun->lun_lock); 7806 ctl_set_invalid_field(/*ctsio*/ ctsio, 7807 /*sks_valid*/ 1, 7808 /*command*/ 1, 7809 /*field*/ 2, 7810 /*bit_valid*/ 1, 7811 /*bit*/ 0); 7812 ctl_done((union ctl_io *)ctsio); 7813 return (1); 7814 } 7815 7816 /* 7817 * Unregister everybody else and build UA for 7818 * them 7819 */ 7820 for(i = 0; i < CTL_MAX_INITIATORS; i++) { 7821 if (i == residx || ctl_get_prkey(lun, i) == 0) 7822 continue; 7823 7824 ctl_clr_prkey(lun, i); 7825 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 7826 } 7827 lun->pr_key_count = 1; 7828 lun->pr_res_type = type; 7829 if (lun->pr_res_type != SPR_TYPE_WR_EX_AR && 7830 lun->pr_res_type != SPR_TYPE_EX_AC_AR) 7831 lun->pr_res_idx = residx; 7832 lun->pr_generation++; 7833 mtx_unlock(&lun->lun_lock); 7834 7835 /* send msg to other side */ 7836 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 7837 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 7838 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 7839 persis_io.pr.pr_info.residx = lun->pr_res_idx; 7840 persis_io.pr.pr_info.res_type = type; 7841 memcpy(persis_io.pr.pr_info.sa_res_key, 7842 param->serv_act_res_key, 7843 sizeof(param->serv_act_res_key)); 7844 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 7845 sizeof(persis_io.pr), M_WAITOK); 7846 } else { 7847 /* not all registrants */ 7848 mtx_unlock(&lun->lun_lock); 7849 free(ctsio->kern_data_ptr, M_CTL); 7850 ctl_set_invalid_field(ctsio, 7851 /*sks_valid*/ 1, 7852 /*command*/ 0, 7853 /*field*/ 8, 7854 /*bit_valid*/ 0, 7855 /*bit*/ 0); 7856 ctl_done((union ctl_io *)ctsio); 7857 return (1); 7858 } 7859 } else if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS 7860 || !(lun->flags & CTL_LUN_PR_RESERVED)) { 7861 int found = 0; 7862 7863 if (res_key == sa_res_key) { 7864 /* special case */ 7865 /* 7866 * The spec implies this is not good but doesn't 7867 * say what to do. There are two choices either 7868 * generate a res conflict or check condition 7869 * with illegal field in parameter data. Since 7870 * that is what is done when the sa_res_key is 7871 * zero I'll take that approach since this has 7872 * to do with the sa_res_key. 7873 */ 7874 mtx_unlock(&lun->lun_lock); 7875 free(ctsio->kern_data_ptr, M_CTL); 7876 ctl_set_invalid_field(ctsio, 7877 /*sks_valid*/ 1, 7878 /*command*/ 0, 7879 /*field*/ 8, 7880 /*bit_valid*/ 0, 7881 /*bit*/ 0); 7882 ctl_done((union ctl_io *)ctsio); 7883 return (1); 7884 } 7885 7886 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 7887 if (ctl_get_prkey(lun, i) != sa_res_key) 7888 continue; 7889 7890 found = 1; 7891 ctl_clr_prkey(lun, i); 7892 lun->pr_key_count--; 7893 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 7894 } 7895 if (!found) { 7896 mtx_unlock(&lun->lun_lock); 7897 free(ctsio->kern_data_ptr, M_CTL); 7898 ctl_set_reservation_conflict(ctsio); 7899 ctl_done((union ctl_io *)ctsio); 7900 return (CTL_RETVAL_COMPLETE); 7901 } 7902 lun->pr_generation++; 7903 mtx_unlock(&lun->lun_lock); 7904 7905 /* send msg to other side */ 7906 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 7907 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 7908 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 7909 persis_io.pr.pr_info.residx = lun->pr_res_idx; 7910 persis_io.pr.pr_info.res_type = type; 7911 memcpy(persis_io.pr.pr_info.sa_res_key, 7912 param->serv_act_res_key, 7913 sizeof(param->serv_act_res_key)); 7914 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 7915 sizeof(persis_io.pr), M_WAITOK); 7916 } else { 7917 /* Reserved but not all registrants */ 7918 /* sa_res_key is res holder */ 7919 if (sa_res_key == ctl_get_prkey(lun, lun->pr_res_idx)) { 7920 /* validate scope and type */ 7921 if ((cdb->scope_type & SPR_SCOPE_MASK) != 7922 SPR_LU_SCOPE) { 7923 mtx_unlock(&lun->lun_lock); 7924 ctl_set_invalid_field(/*ctsio*/ ctsio, 7925 /*sks_valid*/ 1, 7926 /*command*/ 1, 7927 /*field*/ 2, 7928 /*bit_valid*/ 1, 7929 /*bit*/ 4); 7930 ctl_done((union ctl_io *)ctsio); 7931 return (1); 7932 } 7933 7934 if (type>8 || type==2 || type==4 || type==0) { 7935 mtx_unlock(&lun->lun_lock); 7936 ctl_set_invalid_field(/*ctsio*/ ctsio, 7937 /*sks_valid*/ 1, 7938 /*command*/ 1, 7939 /*field*/ 2, 7940 /*bit_valid*/ 1, 7941 /*bit*/ 0); 7942 ctl_done((union ctl_io *)ctsio); 7943 return (1); 7944 } 7945 7946 /* 7947 * Do the following: 7948 * if sa_res_key != res_key remove all 7949 * registrants w/sa_res_key and generate UA 7950 * for these registrants(Registrations 7951 * Preempted) if it wasn't an exclusive 7952 * reservation generate UA(Reservations 7953 * Preempted) for all other registered nexuses 7954 * if the type has changed. Establish the new 7955 * reservation and holder. If res_key and 7956 * sa_res_key are the same do the above 7957 * except don't unregister the res holder. 7958 */ 7959 7960 for(i = 0; i < CTL_MAX_INITIATORS; i++) { 7961 if (i == residx || ctl_get_prkey(lun, i) == 0) 7962 continue; 7963 7964 if (sa_res_key == ctl_get_prkey(lun, i)) { 7965 ctl_clr_prkey(lun, i); 7966 lun->pr_key_count--; 7967 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 7968 } else if (type != lun->pr_res_type && 7969 (lun->pr_res_type == SPR_TYPE_WR_EX_RO || 7970 lun->pr_res_type == SPR_TYPE_EX_AC_RO)) { 7971 ctl_est_ua(lun, i, CTL_UA_RES_RELEASE); 7972 } 7973 } 7974 lun->pr_res_type = type; 7975 if (lun->pr_res_type != SPR_TYPE_WR_EX_AR && 7976 lun->pr_res_type != SPR_TYPE_EX_AC_AR) 7977 lun->pr_res_idx = residx; 7978 else 7979 lun->pr_res_idx = CTL_PR_ALL_REGISTRANTS; 7980 lun->pr_generation++; 7981 mtx_unlock(&lun->lun_lock); 7982 7983 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 7984 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 7985 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 7986 persis_io.pr.pr_info.residx = lun->pr_res_idx; 7987 persis_io.pr.pr_info.res_type = type; 7988 memcpy(persis_io.pr.pr_info.sa_res_key, 7989 param->serv_act_res_key, 7990 sizeof(param->serv_act_res_key)); 7991 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 7992 sizeof(persis_io.pr), M_WAITOK); 7993 } else { 7994 /* 7995 * sa_res_key is not the res holder just 7996 * remove registrants 7997 */ 7998 int found=0; 7999 8000 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 8001 if (sa_res_key != ctl_get_prkey(lun, i)) 8002 continue; 8003 8004 found = 1; 8005 ctl_clr_prkey(lun, i); 8006 lun->pr_key_count--; 8007 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 8008 } 8009 8010 if (!found) { 8011 mtx_unlock(&lun->lun_lock); 8012 free(ctsio->kern_data_ptr, M_CTL); 8013 ctl_set_reservation_conflict(ctsio); 8014 ctl_done((union ctl_io *)ctsio); 8015 return (1); 8016 } 8017 lun->pr_generation++; 8018 mtx_unlock(&lun->lun_lock); 8019 8020 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8021 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8022 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 8023 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8024 persis_io.pr.pr_info.res_type = type; 8025 memcpy(persis_io.pr.pr_info.sa_res_key, 8026 param->serv_act_res_key, 8027 sizeof(param->serv_act_res_key)); 8028 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8029 sizeof(persis_io.pr), M_WAITOK); 8030 } 8031 } 8032 return (0); 8033} 8034 8035static void 8036ctl_pro_preempt_other(struct ctl_lun *lun, union ctl_ha_msg *msg) 8037{ 8038 uint64_t sa_res_key; 8039 int i; 8040 8041 sa_res_key = scsi_8btou64(msg->pr.pr_info.sa_res_key); 8042 8043 if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS 8044 || lun->pr_res_idx == CTL_PR_NO_RESERVATION 8045 || sa_res_key != ctl_get_prkey(lun, lun->pr_res_idx)) { 8046 if (sa_res_key == 0) { 8047 /* 8048 * Unregister everybody else and build UA for 8049 * them 8050 */ 8051 for(i = 0; i < CTL_MAX_INITIATORS; i++) { 8052 if (i == msg->pr.pr_info.residx || 8053 ctl_get_prkey(lun, i) == 0) 8054 continue; 8055 8056 ctl_clr_prkey(lun, i); 8057 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 8058 } 8059 8060 lun->pr_key_count = 1; 8061 lun->pr_res_type = msg->pr.pr_info.res_type; 8062 if (lun->pr_res_type != SPR_TYPE_WR_EX_AR && 8063 lun->pr_res_type != SPR_TYPE_EX_AC_AR) 8064 lun->pr_res_idx = msg->pr.pr_info.residx; 8065 } else { 8066 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 8067 if (sa_res_key == ctl_get_prkey(lun, i)) 8068 continue; 8069 8070 ctl_clr_prkey(lun, i); 8071 lun->pr_key_count--; 8072 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 8073 } 8074 } 8075 } else { 8076 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 8077 if (i == msg->pr.pr_info.residx || 8078 ctl_get_prkey(lun, i) == 0) 8079 continue; 8080 8081 if (sa_res_key == ctl_get_prkey(lun, i)) { 8082 ctl_clr_prkey(lun, i); 8083 lun->pr_key_count--; 8084 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 8085 } else if (msg->pr.pr_info.res_type != lun->pr_res_type 8086 && (lun->pr_res_type == SPR_TYPE_WR_EX_RO || 8087 lun->pr_res_type == SPR_TYPE_EX_AC_RO)) { 8088 ctl_est_ua(lun, i, CTL_UA_RES_RELEASE); 8089 } 8090 } 8091 lun->pr_res_type = msg->pr.pr_info.res_type; 8092 if (lun->pr_res_type != SPR_TYPE_WR_EX_AR && 8093 lun->pr_res_type != SPR_TYPE_EX_AC_AR) 8094 lun->pr_res_idx = msg->pr.pr_info.residx; 8095 else 8096 lun->pr_res_idx = CTL_PR_ALL_REGISTRANTS; 8097 } 8098 lun->pr_generation++; 8099 8100} 8101 8102 8103int 8104ctl_persistent_reserve_out(struct ctl_scsiio *ctsio) 8105{ 8106 struct ctl_softc *softc = CTL_SOFTC(ctsio); 8107 struct ctl_lun *lun = CTL_LUN(ctsio); 8108 int retval; 8109 u_int32_t param_len; 8110 struct scsi_per_res_out *cdb; 8111 struct scsi_per_res_out_parms* param; 8112 uint32_t residx; 8113 uint64_t res_key, sa_res_key, key; 8114 uint8_t type; 8115 union ctl_ha_msg persis_io; 8116 int i; 8117 8118 CTL_DEBUG_PRINT(("ctl_persistent_reserve_out\n")); 8119 8120 cdb = (struct scsi_per_res_out *)ctsio->cdb; 8121 retval = CTL_RETVAL_COMPLETE; 8122 8123 /* 8124 * We only support whole-LUN scope. The scope & type are ignored for 8125 * register, register and ignore existing key and clear. 8126 * We sometimes ignore scope and type on preempts too!! 8127 * Verify reservation type here as well. 8128 */ 8129 type = cdb->scope_type & SPR_TYPE_MASK; 8130 if ((cdb->action == SPRO_RESERVE) 8131 || (cdb->action == SPRO_RELEASE)) { 8132 if ((cdb->scope_type & SPR_SCOPE_MASK) != SPR_LU_SCOPE) { 8133 ctl_set_invalid_field(/*ctsio*/ ctsio, 8134 /*sks_valid*/ 1, 8135 /*command*/ 1, 8136 /*field*/ 2, 8137 /*bit_valid*/ 1, 8138 /*bit*/ 4); 8139 ctl_done((union ctl_io *)ctsio); 8140 return (CTL_RETVAL_COMPLETE); 8141 } 8142 8143 if (type>8 || type==2 || type==4 || type==0) { 8144 ctl_set_invalid_field(/*ctsio*/ ctsio, 8145 /*sks_valid*/ 1, 8146 /*command*/ 1, 8147 /*field*/ 2, 8148 /*bit_valid*/ 1, 8149 /*bit*/ 0); 8150 ctl_done((union ctl_io *)ctsio); 8151 return (CTL_RETVAL_COMPLETE); 8152 } 8153 } 8154 8155 param_len = scsi_4btoul(cdb->length); 8156 8157 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 8158 ctsio->kern_data_ptr = malloc(param_len, M_CTL, M_WAITOK); 8159 ctsio->kern_data_len = param_len; 8160 ctsio->kern_total_len = param_len; 8161 ctsio->kern_data_resid = 0; 8162 ctsio->kern_rel_offset = 0; 8163 ctsio->kern_sg_entries = 0; 8164 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 8165 ctsio->be_move_done = ctl_config_move_done; 8166 ctl_datamove((union ctl_io *)ctsio); 8167 8168 return (CTL_RETVAL_COMPLETE); 8169 } 8170 8171 param = (struct scsi_per_res_out_parms *)ctsio->kern_data_ptr; 8172 8173 residx = ctl_get_initindex(&ctsio->io_hdr.nexus); 8174 res_key = scsi_8btou64(param->res_key.key); 8175 sa_res_key = scsi_8btou64(param->serv_act_res_key); 8176 8177 /* 8178 * Validate the reservation key here except for SPRO_REG_IGNO 8179 * This must be done for all other service actions 8180 */ 8181 if ((cdb->action & SPRO_ACTION_MASK) != SPRO_REG_IGNO) { 8182 mtx_lock(&lun->lun_lock); 8183 if ((key = ctl_get_prkey(lun, residx)) != 0) { 8184 if (res_key != key) { 8185 /* 8186 * The current key passed in doesn't match 8187 * the one the initiator previously 8188 * registered. 8189 */ 8190 mtx_unlock(&lun->lun_lock); 8191 free(ctsio->kern_data_ptr, M_CTL); 8192 ctl_set_reservation_conflict(ctsio); 8193 ctl_done((union ctl_io *)ctsio); 8194 return (CTL_RETVAL_COMPLETE); 8195 } 8196 } else if ((cdb->action & SPRO_ACTION_MASK) != SPRO_REGISTER) { 8197 /* 8198 * We are not registered 8199 */ 8200 mtx_unlock(&lun->lun_lock); 8201 free(ctsio->kern_data_ptr, M_CTL); 8202 ctl_set_reservation_conflict(ctsio); 8203 ctl_done((union ctl_io *)ctsio); 8204 return (CTL_RETVAL_COMPLETE); 8205 } else if (res_key != 0) { 8206 /* 8207 * We are not registered and trying to register but 8208 * the register key isn't zero. 8209 */ 8210 mtx_unlock(&lun->lun_lock); 8211 free(ctsio->kern_data_ptr, M_CTL); 8212 ctl_set_reservation_conflict(ctsio); 8213 ctl_done((union ctl_io *)ctsio); 8214 return (CTL_RETVAL_COMPLETE); 8215 } 8216 mtx_unlock(&lun->lun_lock); 8217 } 8218 8219 switch (cdb->action & SPRO_ACTION_MASK) { 8220 case SPRO_REGISTER: 8221 case SPRO_REG_IGNO: { 8222 8223#if 0 8224 printf("Registration received\n"); 8225#endif 8226 8227 /* 8228 * We don't support any of these options, as we report in 8229 * the read capabilities request (see 8230 * ctl_persistent_reserve_in(), above). 8231 */ 8232 if ((param->flags & SPR_SPEC_I_PT) 8233 || (param->flags & SPR_ALL_TG_PT) 8234 || (param->flags & SPR_APTPL)) { 8235 int bit_ptr; 8236 8237 if (param->flags & SPR_APTPL) 8238 bit_ptr = 0; 8239 else if (param->flags & SPR_ALL_TG_PT) 8240 bit_ptr = 2; 8241 else /* SPR_SPEC_I_PT */ 8242 bit_ptr = 3; 8243 8244 free(ctsio->kern_data_ptr, M_CTL); 8245 ctl_set_invalid_field(ctsio, 8246 /*sks_valid*/ 1, 8247 /*command*/ 0, 8248 /*field*/ 20, 8249 /*bit_valid*/ 1, 8250 /*bit*/ bit_ptr); 8251 ctl_done((union ctl_io *)ctsio); 8252 return (CTL_RETVAL_COMPLETE); 8253 } 8254 8255 mtx_lock(&lun->lun_lock); 8256 8257 /* 8258 * The initiator wants to clear the 8259 * key/unregister. 8260 */ 8261 if (sa_res_key == 0) { 8262 if ((res_key == 0 8263 && (cdb->action & SPRO_ACTION_MASK) == SPRO_REGISTER) 8264 || ((cdb->action & SPRO_ACTION_MASK) == SPRO_REG_IGNO 8265 && ctl_get_prkey(lun, residx) == 0)) { 8266 mtx_unlock(&lun->lun_lock); 8267 goto done; 8268 } 8269 8270 ctl_clr_prkey(lun, residx); 8271 lun->pr_key_count--; 8272 8273 if (residx == lun->pr_res_idx) { 8274 lun->flags &= ~CTL_LUN_PR_RESERVED; 8275 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8276 8277 if ((lun->pr_res_type == SPR_TYPE_WR_EX_RO || 8278 lun->pr_res_type == SPR_TYPE_EX_AC_RO) && 8279 lun->pr_key_count) { 8280 /* 8281 * If the reservation is a registrants 8282 * only type we need to generate a UA 8283 * for other registered inits. The 8284 * sense code should be RESERVATIONS 8285 * RELEASED 8286 */ 8287 8288 for (i = softc->init_min; i < softc->init_max; i++){ 8289 if (ctl_get_prkey(lun, i) == 0) 8290 continue; 8291 ctl_est_ua(lun, i, 8292 CTL_UA_RES_RELEASE); 8293 } 8294 } 8295 lun->pr_res_type = 0; 8296 } else if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS) { 8297 if (lun->pr_key_count==0) { 8298 lun->flags &= ~CTL_LUN_PR_RESERVED; 8299 lun->pr_res_type = 0; 8300 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8301 } 8302 } 8303 lun->pr_generation++; 8304 mtx_unlock(&lun->lun_lock); 8305 8306 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8307 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8308 persis_io.pr.pr_info.action = CTL_PR_UNREG_KEY; 8309 persis_io.pr.pr_info.residx = residx; 8310 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8311 sizeof(persis_io.pr), M_WAITOK); 8312 } else /* sa_res_key != 0 */ { 8313 8314 /* 8315 * If we aren't registered currently then increment 8316 * the key count and set the registered flag. 8317 */ 8318 ctl_alloc_prkey(lun, residx); 8319 if (ctl_get_prkey(lun, residx) == 0) 8320 lun->pr_key_count++; 8321 ctl_set_prkey(lun, residx, sa_res_key); 8322 lun->pr_generation++; 8323 mtx_unlock(&lun->lun_lock); 8324 8325 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8326 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8327 persis_io.pr.pr_info.action = CTL_PR_REG_KEY; 8328 persis_io.pr.pr_info.residx = residx; 8329 memcpy(persis_io.pr.pr_info.sa_res_key, 8330 param->serv_act_res_key, 8331 sizeof(param->serv_act_res_key)); 8332 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8333 sizeof(persis_io.pr), M_WAITOK); 8334 } 8335 8336 break; 8337 } 8338 case SPRO_RESERVE: 8339#if 0 8340 printf("Reserve executed type %d\n", type); 8341#endif 8342 mtx_lock(&lun->lun_lock); 8343 if (lun->flags & CTL_LUN_PR_RESERVED) { 8344 /* 8345 * if this isn't the reservation holder and it's 8346 * not a "all registrants" type or if the type is 8347 * different then we have a conflict 8348 */ 8349 if ((lun->pr_res_idx != residx 8350 && lun->pr_res_idx != CTL_PR_ALL_REGISTRANTS) 8351 || lun->pr_res_type != type) { 8352 mtx_unlock(&lun->lun_lock); 8353 free(ctsio->kern_data_ptr, M_CTL); 8354 ctl_set_reservation_conflict(ctsio); 8355 ctl_done((union ctl_io *)ctsio); 8356 return (CTL_RETVAL_COMPLETE); 8357 } 8358 mtx_unlock(&lun->lun_lock); 8359 } else /* create a reservation */ { 8360 /* 8361 * If it's not an "all registrants" type record 8362 * reservation holder 8363 */ 8364 if (type != SPR_TYPE_WR_EX_AR 8365 && type != SPR_TYPE_EX_AC_AR) 8366 lun->pr_res_idx = residx; /* Res holder */ 8367 else 8368 lun->pr_res_idx = CTL_PR_ALL_REGISTRANTS; 8369 8370 lun->flags |= CTL_LUN_PR_RESERVED; 8371 lun->pr_res_type = type; 8372 8373 mtx_unlock(&lun->lun_lock); 8374 8375 /* send msg to other side */ 8376 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8377 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8378 persis_io.pr.pr_info.action = CTL_PR_RESERVE; 8379 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8380 persis_io.pr.pr_info.res_type = type; 8381 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8382 sizeof(persis_io.pr), M_WAITOK); 8383 } 8384 break; 8385 8386 case SPRO_RELEASE: 8387 mtx_lock(&lun->lun_lock); 8388 if ((lun->flags & CTL_LUN_PR_RESERVED) == 0) { 8389 /* No reservation exists return good status */ 8390 mtx_unlock(&lun->lun_lock); 8391 goto done; 8392 } 8393 /* 8394 * Is this nexus a reservation holder? 8395 */ 8396 if (lun->pr_res_idx != residx 8397 && lun->pr_res_idx != CTL_PR_ALL_REGISTRANTS) { 8398 /* 8399 * not a res holder return good status but 8400 * do nothing 8401 */ 8402 mtx_unlock(&lun->lun_lock); 8403 goto done; 8404 } 8405 8406 if (lun->pr_res_type != type) { 8407 mtx_unlock(&lun->lun_lock); 8408 free(ctsio->kern_data_ptr, M_CTL); 8409 ctl_set_illegal_pr_release(ctsio); 8410 ctl_done((union ctl_io *)ctsio); 8411 return (CTL_RETVAL_COMPLETE); 8412 } 8413 8414 /* okay to release */ 8415 lun->flags &= ~CTL_LUN_PR_RESERVED; 8416 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8417 lun->pr_res_type = 0; 8418 8419 /* 8420 * If this isn't an exclusive access reservation and NUAR 8421 * is not set, generate UA for all other registrants. 8422 */ 8423 if (type != SPR_TYPE_EX_AC && type != SPR_TYPE_WR_EX && 8424 (lun->MODE_CTRL.queue_flags & SCP_NUAR) == 0) { 8425 for (i = softc->init_min; i < softc->init_max; i++) { 8426 if (i == residx || ctl_get_prkey(lun, i) == 0) 8427 continue; 8428 ctl_est_ua(lun, i, CTL_UA_RES_RELEASE); 8429 } 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_RELEASE; 8437 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8438 sizeof(persis_io.pr), M_WAITOK); 8439 break; 8440 8441 case SPRO_CLEAR: 8442 /* send msg to other side */ 8443 8444 mtx_lock(&lun->lun_lock); 8445 lun->flags &= ~CTL_LUN_PR_RESERVED; 8446 lun->pr_res_type = 0; 8447 lun->pr_key_count = 0; 8448 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8449 8450 ctl_clr_prkey(lun, residx); 8451 for (i = 0; i < CTL_MAX_INITIATORS; i++) 8452 if (ctl_get_prkey(lun, i) != 0) { 8453 ctl_clr_prkey(lun, i); 8454 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 8455 } 8456 lun->pr_generation++; 8457 mtx_unlock(&lun->lun_lock); 8458 8459 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8460 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8461 persis_io.pr.pr_info.action = CTL_PR_CLEAR; 8462 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8463 sizeof(persis_io.pr), M_WAITOK); 8464 break; 8465 8466 case SPRO_PREEMPT: 8467 case SPRO_PRE_ABO: { 8468 int nretval; 8469 8470 nretval = ctl_pro_preempt(softc, lun, res_key, sa_res_key, type, 8471 residx, ctsio, cdb, param); 8472 if (nretval != 0) 8473 return (CTL_RETVAL_COMPLETE); 8474 break; 8475 } 8476 default: 8477 panic("%s: Invalid PR type %#x", __func__, cdb->action); 8478 } 8479 8480done: 8481 free(ctsio->kern_data_ptr, M_CTL); 8482 ctl_set_success(ctsio); 8483 ctl_done((union ctl_io *)ctsio); 8484 8485 return (retval); 8486} 8487 8488/* 8489 * This routine is for handling a message from the other SC pertaining to 8490 * persistent reserve out. All the error checking will have been done 8491 * so only perorming the action need be done here to keep the two 8492 * in sync. 8493 */ 8494static void 8495ctl_hndl_per_res_out_on_other_sc(union ctl_io *io) 8496{ 8497 struct ctl_softc *softc = CTL_SOFTC(io); 8498 union ctl_ha_msg *msg = (union ctl_ha_msg *)&io->presio.pr_msg; 8499 struct ctl_lun *lun; 8500 int i; 8501 uint32_t residx, targ_lun; 8502 8503 targ_lun = msg->hdr.nexus.targ_mapped_lun; 8504 mtx_lock(&softc->ctl_lock); 8505 if (targ_lun >= CTL_MAX_LUNS || 8506 (lun = softc->ctl_luns[targ_lun]) == NULL) { 8507 mtx_unlock(&softc->ctl_lock); 8508 return; 8509 } 8510 mtx_lock(&lun->lun_lock); 8511 mtx_unlock(&softc->ctl_lock); 8512 if (lun->flags & CTL_LUN_DISABLED) { 8513 mtx_unlock(&lun->lun_lock); 8514 return; 8515 } 8516 residx = ctl_get_initindex(&msg->hdr.nexus); 8517 switch(msg->pr.pr_info.action) { 8518 case CTL_PR_REG_KEY: 8519 ctl_alloc_prkey(lun, msg->pr.pr_info.residx); 8520 if (ctl_get_prkey(lun, msg->pr.pr_info.residx) == 0) 8521 lun->pr_key_count++; 8522 ctl_set_prkey(lun, msg->pr.pr_info.residx, 8523 scsi_8btou64(msg->pr.pr_info.sa_res_key)); 8524 lun->pr_generation++; 8525 break; 8526 8527 case CTL_PR_UNREG_KEY: 8528 ctl_clr_prkey(lun, msg->pr.pr_info.residx); 8529 lun->pr_key_count--; 8530 8531 /* XXX Need to see if the reservation has been released */ 8532 /* if so do we need to generate UA? */ 8533 if (msg->pr.pr_info.residx == lun->pr_res_idx) { 8534 lun->flags &= ~CTL_LUN_PR_RESERVED; 8535 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8536 8537 if ((lun->pr_res_type == SPR_TYPE_WR_EX_RO || 8538 lun->pr_res_type == SPR_TYPE_EX_AC_RO) && 8539 lun->pr_key_count) { 8540 /* 8541 * If the reservation is a registrants 8542 * only type we need to generate a UA 8543 * for other registered inits. The 8544 * sense code should be RESERVATIONS 8545 * RELEASED 8546 */ 8547 8548 for (i = softc->init_min; i < softc->init_max; i++) { 8549 if (ctl_get_prkey(lun, i) == 0) 8550 continue; 8551 8552 ctl_est_ua(lun, i, CTL_UA_RES_RELEASE); 8553 } 8554 } 8555 lun->pr_res_type = 0; 8556 } else if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS) { 8557 if (lun->pr_key_count==0) { 8558 lun->flags &= ~CTL_LUN_PR_RESERVED; 8559 lun->pr_res_type = 0; 8560 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8561 } 8562 } 8563 lun->pr_generation++; 8564 break; 8565 8566 case CTL_PR_RESERVE: 8567 lun->flags |= CTL_LUN_PR_RESERVED; 8568 lun->pr_res_type = msg->pr.pr_info.res_type; 8569 lun->pr_res_idx = msg->pr.pr_info.residx; 8570 8571 break; 8572 8573 case CTL_PR_RELEASE: 8574 /* 8575 * If this isn't an exclusive access reservation and NUAR 8576 * is not set, generate UA for all other registrants. 8577 */ 8578 if (lun->pr_res_type != SPR_TYPE_EX_AC && 8579 lun->pr_res_type != SPR_TYPE_WR_EX && 8580 (lun->MODE_CTRL.queue_flags & SCP_NUAR) == 0) { 8581 for (i = softc->init_min; i < softc->init_max; i++) 8582 if (i == residx || ctl_get_prkey(lun, i) == 0) 8583 continue; 8584 ctl_est_ua(lun, i, CTL_UA_RES_RELEASE); 8585 } 8586 8587 lun->flags &= ~CTL_LUN_PR_RESERVED; 8588 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8589 lun->pr_res_type = 0; 8590 break; 8591 8592 case CTL_PR_PREEMPT: 8593 ctl_pro_preempt_other(lun, msg); 8594 break; 8595 case CTL_PR_CLEAR: 8596 lun->flags &= ~CTL_LUN_PR_RESERVED; 8597 lun->pr_res_type = 0; 8598 lun->pr_key_count = 0; 8599 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8600 8601 for (i=0; i < CTL_MAX_INITIATORS; i++) { 8602 if (ctl_get_prkey(lun, i) == 0) 8603 continue; 8604 ctl_clr_prkey(lun, i); 8605 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 8606 } 8607 lun->pr_generation++; 8608 break; 8609 } 8610 8611 mtx_unlock(&lun->lun_lock); 8612} 8613 8614int 8615ctl_read_write(struct ctl_scsiio *ctsio) 8616{ 8617 struct ctl_lun *lun = CTL_LUN(ctsio); 8618 struct ctl_lba_len_flags *lbalen; 8619 uint64_t lba; 8620 uint32_t num_blocks; 8621 int flags, retval; 8622 int isread; 8623 8624 CTL_DEBUG_PRINT(("ctl_read_write: command: %#x\n", ctsio->cdb[0])); 8625 8626 flags = 0; 8627 isread = ctsio->cdb[0] == READ_6 || ctsio->cdb[0] == READ_10 8628 || ctsio->cdb[0] == READ_12 || ctsio->cdb[0] == READ_16; 8629 switch (ctsio->cdb[0]) { 8630 case READ_6: 8631 case WRITE_6: { 8632 struct scsi_rw_6 *cdb; 8633 8634 cdb = (struct scsi_rw_6 *)ctsio->cdb; 8635 8636 lba = scsi_3btoul(cdb->addr); 8637 /* only 5 bits are valid in the most significant address byte */ 8638 lba &= 0x1fffff; 8639 num_blocks = cdb->length; 8640 /* 8641 * This is correct according to SBC-2. 8642 */ 8643 if (num_blocks == 0) 8644 num_blocks = 256; 8645 break; 8646 } 8647 case READ_10: 8648 case WRITE_10: { 8649 struct scsi_rw_10 *cdb; 8650 8651 cdb = (struct scsi_rw_10 *)ctsio->cdb; 8652 if (cdb->byte2 & SRW10_FUA) 8653 flags |= CTL_LLF_FUA; 8654 if (cdb->byte2 & SRW10_DPO) 8655 flags |= CTL_LLF_DPO; 8656 lba = scsi_4btoul(cdb->addr); 8657 num_blocks = scsi_2btoul(cdb->length); 8658 break; 8659 } 8660 case WRITE_VERIFY_10: { 8661 struct scsi_write_verify_10 *cdb; 8662 8663 cdb = (struct scsi_write_verify_10 *)ctsio->cdb; 8664 flags |= CTL_LLF_FUA; 8665 if (cdb->byte2 & SWV_DPO) 8666 flags |= CTL_LLF_DPO; 8667 lba = scsi_4btoul(cdb->addr); 8668 num_blocks = scsi_2btoul(cdb->length); 8669 break; 8670 } 8671 case READ_12: 8672 case WRITE_12: { 8673 struct scsi_rw_12 *cdb; 8674 8675 cdb = (struct scsi_rw_12 *)ctsio->cdb; 8676 if (cdb->byte2 & SRW12_FUA) 8677 flags |= CTL_LLF_FUA; 8678 if (cdb->byte2 & SRW12_DPO) 8679 flags |= CTL_LLF_DPO; 8680 lba = scsi_4btoul(cdb->addr); 8681 num_blocks = scsi_4btoul(cdb->length); 8682 break; 8683 } 8684 case WRITE_VERIFY_12: { 8685 struct scsi_write_verify_12 *cdb; 8686 8687 cdb = (struct scsi_write_verify_12 *)ctsio->cdb; 8688 flags |= CTL_LLF_FUA; 8689 if (cdb->byte2 & SWV_DPO) 8690 flags |= CTL_LLF_DPO; 8691 lba = scsi_4btoul(cdb->addr); 8692 num_blocks = scsi_4btoul(cdb->length); 8693 break; 8694 } 8695 case READ_16: 8696 case WRITE_16: { 8697 struct scsi_rw_16 *cdb; 8698 8699 cdb = (struct scsi_rw_16 *)ctsio->cdb; 8700 if (cdb->byte2 & SRW12_FUA) 8701 flags |= CTL_LLF_FUA; 8702 if (cdb->byte2 & SRW12_DPO) 8703 flags |= CTL_LLF_DPO; 8704 lba = scsi_8btou64(cdb->addr); 8705 num_blocks = scsi_4btoul(cdb->length); 8706 break; 8707 } 8708 case WRITE_ATOMIC_16: { 8709 struct scsi_write_atomic_16 *cdb; 8710 8711 if (lun->be_lun->atomicblock == 0) { 8712 ctl_set_invalid_opcode(ctsio); 8713 ctl_done((union ctl_io *)ctsio); 8714 return (CTL_RETVAL_COMPLETE); 8715 } 8716 8717 cdb = (struct scsi_write_atomic_16 *)ctsio->cdb; 8718 if (cdb->byte2 & SRW12_FUA) 8719 flags |= CTL_LLF_FUA; 8720 if (cdb->byte2 & SRW12_DPO) 8721 flags |= CTL_LLF_DPO; 8722 lba = scsi_8btou64(cdb->addr); 8723 num_blocks = scsi_2btoul(cdb->length); 8724 if (num_blocks > lun->be_lun->atomicblock) { 8725 ctl_set_invalid_field(ctsio, /*sks_valid*/ 1, 8726 /*command*/ 1, /*field*/ 12, /*bit_valid*/ 0, 8727 /*bit*/ 0); 8728 ctl_done((union ctl_io *)ctsio); 8729 return (CTL_RETVAL_COMPLETE); 8730 } 8731 break; 8732 } 8733 case WRITE_VERIFY_16: { 8734 struct scsi_write_verify_16 *cdb; 8735 8736 cdb = (struct scsi_write_verify_16 *)ctsio->cdb; 8737 flags |= CTL_LLF_FUA; 8738 if (cdb->byte2 & SWV_DPO) 8739 flags |= CTL_LLF_DPO; 8740 lba = scsi_8btou64(cdb->addr); 8741 num_blocks = scsi_4btoul(cdb->length); 8742 break; 8743 } 8744 default: 8745 /* 8746 * We got a command we don't support. This shouldn't 8747 * happen, commands should be filtered out above us. 8748 */ 8749 ctl_set_invalid_opcode(ctsio); 8750 ctl_done((union ctl_io *)ctsio); 8751 8752 return (CTL_RETVAL_COMPLETE); 8753 break; /* NOTREACHED */ 8754 } 8755 8756 /* 8757 * The first check is to make sure we're in bounds, the second 8758 * check is to catch wrap-around problems. If the lba + num blocks 8759 * is less than the lba, then we've wrapped around and the block 8760 * range is invalid anyway. 8761 */ 8762 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 8763 || ((lba + num_blocks) < lba)) { 8764 ctl_set_lba_out_of_range(ctsio, 8765 MAX(lba, lun->be_lun->maxlba + 1)); 8766 ctl_done((union ctl_io *)ctsio); 8767 return (CTL_RETVAL_COMPLETE); 8768 } 8769 8770 /* 8771 * According to SBC-3, a transfer length of 0 is not an error. 8772 * Note that this cannot happen with WRITE(6) or READ(6), since 0 8773 * translates to 256 blocks for those commands. 8774 */ 8775 if (num_blocks == 0) { 8776 ctl_set_success(ctsio); 8777 ctl_done((union ctl_io *)ctsio); 8778 return (CTL_RETVAL_COMPLETE); 8779 } 8780 8781 /* Set FUA and/or DPO if caches are disabled. */ 8782 if (isread) { 8783 if ((lun->MODE_CACHING.flags1 & SCP_RCD) != 0) 8784 flags |= CTL_LLF_FUA | CTL_LLF_DPO; 8785 } else { 8786 if ((lun->MODE_CACHING.flags1 & SCP_WCE) == 0) 8787 flags |= CTL_LLF_FUA; 8788 } 8789 8790 lbalen = (struct ctl_lba_len_flags *) 8791 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 8792 lbalen->lba = lba; 8793 lbalen->len = num_blocks; 8794 lbalen->flags = (isread ? CTL_LLF_READ : CTL_LLF_WRITE) | flags; 8795 8796 ctsio->kern_total_len = num_blocks * lun->be_lun->blocksize; 8797 ctsio->kern_rel_offset = 0; 8798 8799 CTL_DEBUG_PRINT(("ctl_read_write: calling data_submit()\n")); 8800 8801 retval = lun->backend->data_submit((union ctl_io *)ctsio); 8802 return (retval); 8803} 8804 8805static int 8806ctl_cnw_cont(union ctl_io *io) 8807{ 8808 struct ctl_lun *lun = CTL_LUN(io); 8809 struct ctl_scsiio *ctsio; 8810 struct ctl_lba_len_flags *lbalen; 8811 int retval; 8812 8813 ctsio = &io->scsiio; 8814 ctsio->io_hdr.status = CTL_STATUS_NONE; 8815 ctsio->io_hdr.flags &= ~CTL_FLAG_IO_CONT; 8816 lbalen = (struct ctl_lba_len_flags *) 8817 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 8818 lbalen->flags &= ~CTL_LLF_COMPARE; 8819 lbalen->flags |= CTL_LLF_WRITE; 8820 8821 CTL_DEBUG_PRINT(("ctl_cnw_cont: calling data_submit()\n")); 8822 retval = lun->backend->data_submit((union ctl_io *)ctsio); 8823 return (retval); 8824} 8825 8826int 8827ctl_cnw(struct ctl_scsiio *ctsio) 8828{ 8829 struct ctl_lun *lun = CTL_LUN(ctsio); 8830 struct ctl_lba_len_flags *lbalen; 8831 uint64_t lba; 8832 uint32_t num_blocks; 8833 int flags, retval; 8834 8835 CTL_DEBUG_PRINT(("ctl_cnw: command: %#x\n", ctsio->cdb[0])); 8836 8837 flags = 0; 8838 switch (ctsio->cdb[0]) { 8839 case COMPARE_AND_WRITE: { 8840 struct scsi_compare_and_write *cdb; 8841 8842 cdb = (struct scsi_compare_and_write *)ctsio->cdb; 8843 if (cdb->byte2 & SRW10_FUA) 8844 flags |= CTL_LLF_FUA; 8845 if (cdb->byte2 & SRW10_DPO) 8846 flags |= CTL_LLF_DPO; 8847 lba = scsi_8btou64(cdb->addr); 8848 num_blocks = cdb->length; 8849 break; 8850 } 8851 default: 8852 /* 8853 * We got a command we don't support. This shouldn't 8854 * happen, commands should be filtered out above us. 8855 */ 8856 ctl_set_invalid_opcode(ctsio); 8857 ctl_done((union ctl_io *)ctsio); 8858 8859 return (CTL_RETVAL_COMPLETE); 8860 break; /* NOTREACHED */ 8861 } 8862 8863 /* 8864 * The first check is to make sure we're in bounds, the second 8865 * check is to catch wrap-around problems. If the lba + num blocks 8866 * is less than the lba, then we've wrapped around and the block 8867 * range is invalid anyway. 8868 */ 8869 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 8870 || ((lba + num_blocks) < lba)) { 8871 ctl_set_lba_out_of_range(ctsio, 8872 MAX(lba, lun->be_lun->maxlba + 1)); 8873 ctl_done((union ctl_io *)ctsio); 8874 return (CTL_RETVAL_COMPLETE); 8875 } 8876 8877 /* 8878 * According to SBC-3, a transfer length of 0 is not an error. 8879 */ 8880 if (num_blocks == 0) { 8881 ctl_set_success(ctsio); 8882 ctl_done((union ctl_io *)ctsio); 8883 return (CTL_RETVAL_COMPLETE); 8884 } 8885 8886 /* Set FUA if write cache is disabled. */ 8887 if ((lun->MODE_CACHING.flags1 & SCP_WCE) == 0) 8888 flags |= CTL_LLF_FUA; 8889 8890 ctsio->kern_total_len = 2 * num_blocks * lun->be_lun->blocksize; 8891 ctsio->kern_rel_offset = 0; 8892 8893 /* 8894 * Set the IO_CONT flag, so that if this I/O gets passed to 8895 * ctl_data_submit_done(), it'll get passed back to 8896 * ctl_ctl_cnw_cont() for further processing. 8897 */ 8898 ctsio->io_hdr.flags |= CTL_FLAG_IO_CONT; 8899 ctsio->io_cont = ctl_cnw_cont; 8900 8901 lbalen = (struct ctl_lba_len_flags *) 8902 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 8903 lbalen->lba = lba; 8904 lbalen->len = num_blocks; 8905 lbalen->flags = CTL_LLF_COMPARE | flags; 8906 8907 CTL_DEBUG_PRINT(("ctl_cnw: calling data_submit()\n")); 8908 retval = lun->backend->data_submit((union ctl_io *)ctsio); 8909 return (retval); 8910} 8911 8912int 8913ctl_verify(struct ctl_scsiio *ctsio) 8914{ 8915 struct ctl_lun *lun = CTL_LUN(ctsio); 8916 struct ctl_lba_len_flags *lbalen; 8917 uint64_t lba; 8918 uint32_t num_blocks; 8919 int bytchk, flags; 8920 int retval; 8921 8922 CTL_DEBUG_PRINT(("ctl_verify: command: %#x\n", ctsio->cdb[0])); 8923 8924 bytchk = 0; 8925 flags = CTL_LLF_FUA; 8926 switch (ctsio->cdb[0]) { 8927 case VERIFY_10: { 8928 struct scsi_verify_10 *cdb; 8929 8930 cdb = (struct scsi_verify_10 *)ctsio->cdb; 8931 if (cdb->byte2 & SVFY_BYTCHK) 8932 bytchk = 1; 8933 if (cdb->byte2 & SVFY_DPO) 8934 flags |= CTL_LLF_DPO; 8935 lba = scsi_4btoul(cdb->addr); 8936 num_blocks = scsi_2btoul(cdb->length); 8937 break; 8938 } 8939 case VERIFY_12: { 8940 struct scsi_verify_12 *cdb; 8941 8942 cdb = (struct scsi_verify_12 *)ctsio->cdb; 8943 if (cdb->byte2 & SVFY_BYTCHK) 8944 bytchk = 1; 8945 if (cdb->byte2 & SVFY_DPO) 8946 flags |= CTL_LLF_DPO; 8947 lba = scsi_4btoul(cdb->addr); 8948 num_blocks = scsi_4btoul(cdb->length); 8949 break; 8950 } 8951 case VERIFY_16: { 8952 struct scsi_rw_16 *cdb; 8953 8954 cdb = (struct scsi_rw_16 *)ctsio->cdb; 8955 if (cdb->byte2 & SVFY_BYTCHK) 8956 bytchk = 1; 8957 if (cdb->byte2 & SVFY_DPO) 8958 flags |= CTL_LLF_DPO; 8959 lba = scsi_8btou64(cdb->addr); 8960 num_blocks = scsi_4btoul(cdb->length); 8961 break; 8962 } 8963 default: 8964 /* 8965 * We got a command we don't support. This shouldn't 8966 * happen, commands should be filtered out above us. 8967 */ 8968 ctl_set_invalid_opcode(ctsio); 8969 ctl_done((union ctl_io *)ctsio); 8970 return (CTL_RETVAL_COMPLETE); 8971 } 8972 8973 /* 8974 * The first check is to make sure we're in bounds, the second 8975 * check is to catch wrap-around problems. If the lba + num blocks 8976 * is less than the lba, then we've wrapped around and the block 8977 * range is invalid anyway. 8978 */ 8979 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 8980 || ((lba + num_blocks) < lba)) { 8981 ctl_set_lba_out_of_range(ctsio, 8982 MAX(lba, lun->be_lun->maxlba + 1)); 8983 ctl_done((union ctl_io *)ctsio); 8984 return (CTL_RETVAL_COMPLETE); 8985 } 8986 8987 /* 8988 * According to SBC-3, a transfer length of 0 is not an error. 8989 */ 8990 if (num_blocks == 0) { 8991 ctl_set_success(ctsio); 8992 ctl_done((union ctl_io *)ctsio); 8993 return (CTL_RETVAL_COMPLETE); 8994 } 8995 8996 lbalen = (struct ctl_lba_len_flags *) 8997 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 8998 lbalen->lba = lba; 8999 lbalen->len = num_blocks; 9000 if (bytchk) { 9001 lbalen->flags = CTL_LLF_COMPARE | flags; 9002 ctsio->kern_total_len = num_blocks * lun->be_lun->blocksize; 9003 } else { 9004 lbalen->flags = CTL_LLF_VERIFY | flags; 9005 ctsio->kern_total_len = 0; 9006 } 9007 ctsio->kern_rel_offset = 0; 9008 9009 CTL_DEBUG_PRINT(("ctl_verify: calling data_submit()\n")); 9010 retval = lun->backend->data_submit((union ctl_io *)ctsio); 9011 return (retval); 9012} 9013 9014int 9015ctl_report_luns(struct ctl_scsiio *ctsio) 9016{ 9017 struct ctl_softc *softc = CTL_SOFTC(ctsio); 9018 struct ctl_port *port = CTL_PORT(ctsio); 9019 struct ctl_lun *lun, *request_lun = CTL_LUN(ctsio); 9020 struct scsi_report_luns *cdb; 9021 struct scsi_report_luns_data *lun_data; 9022 int num_filled, num_luns, num_port_luns, retval; 9023 uint32_t alloc_len, lun_datalen; 9024 uint32_t initidx, targ_lun_id, lun_id; 9025 9026 retval = CTL_RETVAL_COMPLETE; 9027 cdb = (struct scsi_report_luns *)ctsio->cdb; 9028 9029 CTL_DEBUG_PRINT(("ctl_report_luns\n")); 9030 9031 num_luns = 0; 9032 num_port_luns = port->lun_map ? port->lun_map_size : CTL_MAX_LUNS; 9033 mtx_lock(&softc->ctl_lock); 9034 for (targ_lun_id = 0; targ_lun_id < num_port_luns; targ_lun_id++) { 9035 if (ctl_lun_map_from_port(port, targ_lun_id) != UINT32_MAX) 9036 num_luns++; 9037 } 9038 mtx_unlock(&softc->ctl_lock); 9039 9040 switch (cdb->select_report) { 9041 case RPL_REPORT_DEFAULT: 9042 case RPL_REPORT_ALL: 9043 case RPL_REPORT_NONSUBSID: 9044 break; 9045 case RPL_REPORT_WELLKNOWN: 9046 case RPL_REPORT_ADMIN: 9047 case RPL_REPORT_CONGLOM: 9048 num_luns = 0; 9049 break; 9050 default: 9051 ctl_set_invalid_field(ctsio, 9052 /*sks_valid*/ 1, 9053 /*command*/ 1, 9054 /*field*/ 2, 9055 /*bit_valid*/ 0, 9056 /*bit*/ 0); 9057 ctl_done((union ctl_io *)ctsio); 9058 return (retval); 9059 break; /* NOTREACHED */ 9060 } 9061 9062 alloc_len = scsi_4btoul(cdb->length); 9063 /* 9064 * The initiator has to allocate at least 16 bytes for this request, 9065 * so he can at least get the header and the first LUN. Otherwise 9066 * we reject the request (per SPC-3 rev 14, section 6.21). 9067 */ 9068 if (alloc_len < (sizeof(struct scsi_report_luns_data) + 9069 sizeof(struct scsi_report_luns_lundata))) { 9070 ctl_set_invalid_field(ctsio, 9071 /*sks_valid*/ 1, 9072 /*command*/ 1, 9073 /*field*/ 6, 9074 /*bit_valid*/ 0, 9075 /*bit*/ 0); 9076 ctl_done((union ctl_io *)ctsio); 9077 return (retval); 9078 } 9079 9080 lun_datalen = sizeof(*lun_data) + 9081 (num_luns * sizeof(struct scsi_report_luns_lundata)); 9082 9083 ctsio->kern_data_ptr = malloc(lun_datalen, M_CTL, M_WAITOK | M_ZERO); 9084 lun_data = (struct scsi_report_luns_data *)ctsio->kern_data_ptr; 9085 ctsio->kern_sg_entries = 0; 9086 9087 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 9088 9089 mtx_lock(&softc->ctl_lock); 9090 for (targ_lun_id = 0, num_filled = 0; 9091 targ_lun_id < num_port_luns && num_filled < num_luns; 9092 targ_lun_id++) { 9093 lun_id = ctl_lun_map_from_port(port, targ_lun_id); 9094 if (lun_id == UINT32_MAX) 9095 continue; 9096 lun = softc->ctl_luns[lun_id]; 9097 if (lun == NULL) 9098 continue; 9099 9100 be64enc(lun_data->luns[num_filled++].lundata, 9101 ctl_encode_lun(targ_lun_id)); 9102 9103 /* 9104 * According to SPC-3, rev 14 section 6.21: 9105 * 9106 * "The execution of a REPORT LUNS command to any valid and 9107 * installed logical unit shall clear the REPORTED LUNS DATA 9108 * HAS CHANGED unit attention condition for all logical 9109 * units of that target with respect to the requesting 9110 * initiator. A valid and installed logical unit is one 9111 * having a PERIPHERAL QUALIFIER of 000b in the standard 9112 * INQUIRY data (see 6.4.2)." 9113 * 9114 * If request_lun is NULL, the LUN this report luns command 9115 * was issued to is either disabled or doesn't exist. In that 9116 * case, we shouldn't clear any pending lun change unit 9117 * attention. 9118 */ 9119 if (request_lun != NULL) { 9120 mtx_lock(&lun->lun_lock); 9121 ctl_clr_ua(lun, initidx, CTL_UA_LUN_CHANGE); 9122 mtx_unlock(&lun->lun_lock); 9123 } 9124 } 9125 mtx_unlock(&softc->ctl_lock); 9126 9127 /* 9128 * It's quite possible that we've returned fewer LUNs than we allocated 9129 * space for. Trim it. 9130 */ 9131 lun_datalen = sizeof(*lun_data) + 9132 (num_filled * sizeof(struct scsi_report_luns_lundata)); 9133 9134 if (lun_datalen < alloc_len) { 9135 ctsio->residual = alloc_len - lun_datalen; 9136 ctsio->kern_data_len = lun_datalen; 9137 ctsio->kern_total_len = lun_datalen; 9138 } else { 9139 ctsio->residual = 0; 9140 ctsio->kern_data_len = alloc_len; 9141 ctsio->kern_total_len = alloc_len; 9142 } 9143 ctsio->kern_data_resid = 0; 9144 ctsio->kern_rel_offset = 0; 9145 ctsio->kern_sg_entries = 0; 9146 9147 /* 9148 * We set this to the actual data length, regardless of how much 9149 * space we actually have to return results. If the user looks at 9150 * this value, he'll know whether or not he allocated enough space 9151 * and reissue the command if necessary. We don't support well 9152 * known logical units, so if the user asks for that, return none. 9153 */ 9154 scsi_ulto4b(lun_datalen - 8, lun_data->length); 9155 9156 /* 9157 * We can only return SCSI_STATUS_CHECK_COND when we can't satisfy 9158 * this request. 9159 */ 9160 ctl_set_success(ctsio); 9161 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9162 ctsio->be_move_done = ctl_config_move_done; 9163 ctl_datamove((union ctl_io *)ctsio); 9164 return (retval); 9165} 9166 9167int 9168ctl_request_sense(struct ctl_scsiio *ctsio) 9169{ 9170 struct ctl_softc *softc = CTL_SOFTC(ctsio); 9171 struct ctl_lun *lun = CTL_LUN(ctsio); 9172 struct scsi_request_sense *cdb; 9173 struct scsi_sense_data *sense_ptr; 9174 uint32_t initidx; 9175 int have_error; 9176 u_int sense_len = SSD_FULL_SIZE; 9177 scsi_sense_data_type sense_format; 9178 ctl_ua_type ua_type; 9179 uint8_t asc = 0, ascq = 0; 9180 9181 cdb = (struct scsi_request_sense *)ctsio->cdb; 9182 9183 CTL_DEBUG_PRINT(("ctl_request_sense\n")); 9184 9185 /* 9186 * Determine which sense format the user wants. 9187 */ 9188 if (cdb->byte2 & SRS_DESC) 9189 sense_format = SSD_TYPE_DESC; 9190 else 9191 sense_format = SSD_TYPE_FIXED; 9192 9193 ctsio->kern_data_ptr = malloc(sizeof(*sense_ptr), M_CTL, M_WAITOK); 9194 sense_ptr = (struct scsi_sense_data *)ctsio->kern_data_ptr; 9195 ctsio->kern_sg_entries = 0; 9196 9197 /* 9198 * struct scsi_sense_data, which is currently set to 256 bytes, is 9199 * larger than the largest allowed value for the length field in the 9200 * REQUEST SENSE CDB, which is 252 bytes as of SPC-4. 9201 */ 9202 ctsio->residual = 0; 9203 ctsio->kern_data_len = cdb->length; 9204 ctsio->kern_total_len = cdb->length; 9205 9206 ctsio->kern_data_resid = 0; 9207 ctsio->kern_rel_offset = 0; 9208 ctsio->kern_sg_entries = 0; 9209 9210 /* 9211 * If we don't have a LUN, we don't have any pending sense. 9212 */ 9213 if (lun == NULL || 9214 ((lun->flags & CTL_LUN_PRIMARY_SC) == 0 && 9215 softc->ha_link < CTL_HA_LINK_UNKNOWN)) { 9216 /* "Logical unit not supported" */ 9217 ctl_set_sense_data(sense_ptr, &sense_len, NULL, sense_format, 9218 /*current_error*/ 1, 9219 /*sense_key*/ SSD_KEY_ILLEGAL_REQUEST, 9220 /*asc*/ 0x25, 9221 /*ascq*/ 0x00, 9222 SSD_ELEM_NONE); 9223 goto send; 9224 } 9225 9226 have_error = 0; 9227 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 9228 /* 9229 * Check for pending sense, and then for pending unit attentions. 9230 * Pending sense gets returned first, then pending unit attentions. 9231 */ 9232 mtx_lock(&lun->lun_lock); 9233#ifdef CTL_WITH_CA 9234 if (ctl_is_set(lun->have_ca, initidx)) { 9235 scsi_sense_data_type stored_format; 9236 9237 /* 9238 * Check to see which sense format was used for the stored 9239 * sense data. 9240 */ 9241 stored_format = scsi_sense_type(&lun->pending_sense[initidx]); 9242 9243 /* 9244 * If the user requested a different sense format than the 9245 * one we stored, then we need to convert it to the other 9246 * format. If we're going from descriptor to fixed format 9247 * sense data, we may lose things in translation, depending 9248 * on what options were used. 9249 * 9250 * If the stored format is SSD_TYPE_NONE (i.e. invalid), 9251 * for some reason we'll just copy it out as-is. 9252 */ 9253 if ((stored_format == SSD_TYPE_FIXED) 9254 && (sense_format == SSD_TYPE_DESC)) 9255 ctl_sense_to_desc((struct scsi_sense_data_fixed *) 9256 &lun->pending_sense[initidx], 9257 (struct scsi_sense_data_desc *)sense_ptr); 9258 else if ((stored_format == SSD_TYPE_DESC) 9259 && (sense_format == SSD_TYPE_FIXED)) 9260 ctl_sense_to_fixed((struct scsi_sense_data_desc *) 9261 &lun->pending_sense[initidx], 9262 (struct scsi_sense_data_fixed *)sense_ptr); 9263 else 9264 memcpy(sense_ptr, &lun->pending_sense[initidx], 9265 MIN(sizeof(*sense_ptr), 9266 sizeof(lun->pending_sense[initidx]))); 9267 9268 ctl_clear_mask(lun->have_ca, initidx); 9269 have_error = 1; 9270 } else 9271#endif 9272 if (have_error == 0) { 9273 ua_type = ctl_build_ua(lun, initidx, sense_ptr, &sense_len, 9274 sense_format); 9275 if (ua_type != CTL_UA_NONE) 9276 have_error = 1; 9277 } 9278 if (have_error == 0) { 9279 /* 9280 * Report informational exception if have one and allowed. 9281 */ 9282 if (lun->MODE_IE.mrie != SIEP_MRIE_NO) { 9283 asc = lun->ie_asc; 9284 ascq = lun->ie_ascq; 9285 } 9286 ctl_set_sense_data(sense_ptr, &sense_len, lun, sense_format, 9287 /*current_error*/ 1, 9288 /*sense_key*/ SSD_KEY_NO_SENSE, 9289 /*asc*/ asc, 9290 /*ascq*/ ascq, 9291 SSD_ELEM_NONE); 9292 } 9293 mtx_unlock(&lun->lun_lock); 9294 9295send: 9296 /* 9297 * We report the SCSI status as OK, since the status of the command 9298 * itself is OK. We're reporting sense as parameter data. 9299 */ 9300 ctl_set_success(ctsio); 9301 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9302 ctsio->be_move_done = ctl_config_move_done; 9303 ctl_datamove((union ctl_io *)ctsio); 9304 return (CTL_RETVAL_COMPLETE); 9305} 9306 9307int 9308ctl_tur(struct ctl_scsiio *ctsio) 9309{ 9310 9311 CTL_DEBUG_PRINT(("ctl_tur\n")); 9312 9313 ctl_set_success(ctsio); 9314 ctl_done((union ctl_io *)ctsio); 9315 9316 return (CTL_RETVAL_COMPLETE); 9317} 9318 9319/* 9320 * SCSI VPD page 0x00, the Supported VPD Pages page. 9321 */ 9322static int 9323ctl_inquiry_evpd_supported(struct ctl_scsiio *ctsio, int alloc_len) 9324{ 9325 struct ctl_lun *lun = CTL_LUN(ctsio); 9326 struct scsi_vpd_supported_pages *pages; 9327 int sup_page_size; 9328 int p; 9329 9330 sup_page_size = sizeof(struct scsi_vpd_supported_pages) * 9331 SCSI_EVPD_NUM_SUPPORTED_PAGES; 9332 ctsio->kern_data_ptr = malloc(sup_page_size, M_CTL, M_WAITOK | M_ZERO); 9333 pages = (struct scsi_vpd_supported_pages *)ctsio->kern_data_ptr; 9334 ctsio->kern_sg_entries = 0; 9335 9336 if (sup_page_size < alloc_len) { 9337 ctsio->residual = alloc_len - sup_page_size; 9338 ctsio->kern_data_len = sup_page_size; 9339 ctsio->kern_total_len = sup_page_size; 9340 } else { 9341 ctsio->residual = 0; 9342 ctsio->kern_data_len = alloc_len; 9343 ctsio->kern_total_len = alloc_len; 9344 } 9345 ctsio->kern_data_resid = 0; 9346 ctsio->kern_rel_offset = 0; 9347 ctsio->kern_sg_entries = 0; 9348 9349 /* 9350 * The control device is always connected. The disk device, on the 9351 * other hand, may not be online all the time. Need to change this 9352 * to figure out whether the disk device is actually online or not. 9353 */ 9354 if (lun != NULL) 9355 pages->device = (SID_QUAL_LU_CONNECTED << 5) | 9356 lun->be_lun->lun_type; 9357 else 9358 pages->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9359 9360 p = 0; 9361 /* Supported VPD pages */ 9362 pages->page_list[p++] = SVPD_SUPPORTED_PAGES; 9363 /* Serial Number */ 9364 pages->page_list[p++] = SVPD_UNIT_SERIAL_NUMBER; 9365 /* Device Identification */ 9366 pages->page_list[p++] = SVPD_DEVICE_ID; 9367 /* Extended INQUIRY Data */ 9368 pages->page_list[p++] = SVPD_EXTENDED_INQUIRY_DATA; 9369 /* Mode Page Policy */ 9370 pages->page_list[p++] = SVPD_MODE_PAGE_POLICY; 9371 /* SCSI Ports */ 9372 pages->page_list[p++] = SVPD_SCSI_PORTS; 9373 /* Third-party Copy */ 9374 pages->page_list[p++] = SVPD_SCSI_TPC; 9375 if (lun != NULL && lun->be_lun->lun_type == T_DIRECT) { 9376 /* Block limits */ 9377 pages->page_list[p++] = SVPD_BLOCK_LIMITS; 9378 /* Block Device Characteristics */ 9379 pages->page_list[p++] = SVPD_BDC; 9380 /* Logical Block Provisioning */ 9381 pages->page_list[p++] = SVPD_LBP; 9382 } 9383 pages->length = p; 9384 9385 ctl_set_success(ctsio); 9386 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9387 ctsio->be_move_done = ctl_config_move_done; 9388 ctl_datamove((union ctl_io *)ctsio); 9389 return (CTL_RETVAL_COMPLETE); 9390} 9391 9392/* 9393 * SCSI VPD page 0x80, the Unit Serial Number page. 9394 */ 9395static int 9396ctl_inquiry_evpd_serial(struct ctl_scsiio *ctsio, int alloc_len) 9397{ 9398 struct ctl_lun *lun = CTL_LUN(ctsio); 9399 struct scsi_vpd_unit_serial_number *sn_ptr; 9400 int data_len; 9401 9402 data_len = 4 + CTL_SN_LEN; 9403 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9404 sn_ptr = (struct scsi_vpd_unit_serial_number *)ctsio->kern_data_ptr; 9405 if (data_len < alloc_len) { 9406 ctsio->residual = alloc_len - data_len; 9407 ctsio->kern_data_len = data_len; 9408 ctsio->kern_total_len = data_len; 9409 } else { 9410 ctsio->residual = 0; 9411 ctsio->kern_data_len = alloc_len; 9412 ctsio->kern_total_len = alloc_len; 9413 } 9414 ctsio->kern_data_resid = 0; 9415 ctsio->kern_rel_offset = 0; 9416 ctsio->kern_sg_entries = 0; 9417 9418 /* 9419 * The control device is always connected. The disk device, on the 9420 * other hand, may not be online all the time. Need to change this 9421 * to figure out whether the disk device is actually online or not. 9422 */ 9423 if (lun != NULL) 9424 sn_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9425 lun->be_lun->lun_type; 9426 else 9427 sn_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9428 9429 sn_ptr->page_code = SVPD_UNIT_SERIAL_NUMBER; 9430 sn_ptr->length = CTL_SN_LEN; 9431 /* 9432 * If we don't have a LUN, we just leave the serial number as 9433 * all spaces. 9434 */ 9435 if (lun != NULL) { 9436 strncpy((char *)sn_ptr->serial_num, 9437 (char *)lun->be_lun->serial_num, CTL_SN_LEN); 9438 } else 9439 memset(sn_ptr->serial_num, 0x20, CTL_SN_LEN); 9440 9441 ctl_set_success(ctsio); 9442 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9443 ctsio->be_move_done = ctl_config_move_done; 9444 ctl_datamove((union ctl_io *)ctsio); 9445 return (CTL_RETVAL_COMPLETE); 9446} 9447 9448 9449/* 9450 * SCSI VPD page 0x86, the Extended INQUIRY Data page. 9451 */ 9452static int 9453ctl_inquiry_evpd_eid(struct ctl_scsiio *ctsio, int alloc_len) 9454{ 9455 struct ctl_lun *lun = CTL_LUN(ctsio); 9456 struct scsi_vpd_extended_inquiry_data *eid_ptr; 9457 int data_len; 9458 9459 data_len = sizeof(struct scsi_vpd_extended_inquiry_data); 9460 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9461 eid_ptr = (struct scsi_vpd_extended_inquiry_data *)ctsio->kern_data_ptr; 9462 ctsio->kern_sg_entries = 0; 9463 9464 if (data_len < alloc_len) { 9465 ctsio->residual = alloc_len - data_len; 9466 ctsio->kern_data_len = data_len; 9467 ctsio->kern_total_len = data_len; 9468 } else { 9469 ctsio->residual = 0; 9470 ctsio->kern_data_len = alloc_len; 9471 ctsio->kern_total_len = alloc_len; 9472 } 9473 ctsio->kern_data_resid = 0; 9474 ctsio->kern_rel_offset = 0; 9475 ctsio->kern_sg_entries = 0; 9476 9477 /* 9478 * The control device is always connected. The disk device, on the 9479 * other hand, may not be online all the time. 9480 */ 9481 if (lun != NULL) 9482 eid_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9483 lun->be_lun->lun_type; 9484 else 9485 eid_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9486 eid_ptr->page_code = SVPD_EXTENDED_INQUIRY_DATA; 9487 scsi_ulto2b(data_len - 4, eid_ptr->page_length); 9488 /* 9489 * We support head of queue, ordered and simple tags. 9490 */ 9491 eid_ptr->flags2 = SVPD_EID_HEADSUP | SVPD_EID_ORDSUP | SVPD_EID_SIMPSUP; 9492 /* 9493 * Volatile cache supported. 9494 */ 9495 eid_ptr->flags3 = SVPD_EID_V_SUP; 9496 9497 /* 9498 * This means that we clear the REPORTED LUNS DATA HAS CHANGED unit 9499 * attention for a particular IT nexus on all LUNs once we report 9500 * it to that nexus once. This bit is required as of SPC-4. 9501 */ 9502 eid_ptr->flags4 = SVPD_EID_LUICLR; 9503 9504 /* 9505 * We support revert to defaults (RTD) bit in MODE SELECT. 9506 */ 9507 eid_ptr->flags5 = SVPD_EID_RTD_SUP; 9508 9509 /* 9510 * XXX KDM in order to correctly answer this, we would need 9511 * information from the SIM to determine how much sense data it 9512 * can send. So this would really be a path inquiry field, most 9513 * likely. This can be set to a maximum of 252 according to SPC-4, 9514 * but the hardware may or may not be able to support that much. 9515 * 0 just means that the maximum sense data length is not reported. 9516 */ 9517 eid_ptr->max_sense_length = 0; 9518 9519 ctl_set_success(ctsio); 9520 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9521 ctsio->be_move_done = ctl_config_move_done; 9522 ctl_datamove((union ctl_io *)ctsio); 9523 return (CTL_RETVAL_COMPLETE); 9524} 9525 9526static int 9527ctl_inquiry_evpd_mpp(struct ctl_scsiio *ctsio, int alloc_len) 9528{ 9529 struct ctl_lun *lun = CTL_LUN(ctsio); 9530 struct scsi_vpd_mode_page_policy *mpp_ptr; 9531 int data_len; 9532 9533 data_len = sizeof(struct scsi_vpd_mode_page_policy) + 9534 sizeof(struct scsi_vpd_mode_page_policy_descr); 9535 9536 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9537 mpp_ptr = (struct scsi_vpd_mode_page_policy *)ctsio->kern_data_ptr; 9538 ctsio->kern_sg_entries = 0; 9539 9540 if (data_len < alloc_len) { 9541 ctsio->residual = alloc_len - data_len; 9542 ctsio->kern_data_len = data_len; 9543 ctsio->kern_total_len = data_len; 9544 } else { 9545 ctsio->residual = 0; 9546 ctsio->kern_data_len = alloc_len; 9547 ctsio->kern_total_len = alloc_len; 9548 } 9549 ctsio->kern_data_resid = 0; 9550 ctsio->kern_rel_offset = 0; 9551 ctsio->kern_sg_entries = 0; 9552 9553 /* 9554 * The control device is always connected. The disk device, on the 9555 * other hand, may not be online all the time. 9556 */ 9557 if (lun != NULL) 9558 mpp_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9559 lun->be_lun->lun_type; 9560 else 9561 mpp_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9562 mpp_ptr->page_code = SVPD_MODE_PAGE_POLICY; 9563 scsi_ulto2b(data_len - 4, mpp_ptr->page_length); 9564 mpp_ptr->descr[0].page_code = 0x3f; 9565 mpp_ptr->descr[0].subpage_code = 0xff; 9566 mpp_ptr->descr[0].policy = SVPD_MPP_SHARED; 9567 9568 ctl_set_success(ctsio); 9569 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9570 ctsio->be_move_done = ctl_config_move_done; 9571 ctl_datamove((union ctl_io *)ctsio); 9572 return (CTL_RETVAL_COMPLETE); 9573} 9574 9575/* 9576 * SCSI VPD page 0x83, the Device Identification page. 9577 */ 9578static int 9579ctl_inquiry_evpd_devid(struct ctl_scsiio *ctsio, int alloc_len) 9580{ 9581 struct ctl_softc *softc = CTL_SOFTC(ctsio); 9582 struct ctl_port *port = CTL_PORT(ctsio); 9583 struct ctl_lun *lun = CTL_LUN(ctsio); 9584 struct scsi_vpd_device_id *devid_ptr; 9585 struct scsi_vpd_id_descriptor *desc; 9586 int data_len, g; 9587 uint8_t proto; 9588 9589 data_len = sizeof(struct scsi_vpd_device_id) + 9590 sizeof(struct scsi_vpd_id_descriptor) + 9591 sizeof(struct scsi_vpd_id_rel_trgt_port_id) + 9592 sizeof(struct scsi_vpd_id_descriptor) + 9593 sizeof(struct scsi_vpd_id_trgt_port_grp_id); 9594 if (lun && lun->lun_devid) 9595 data_len += lun->lun_devid->len; 9596 if (port && port->port_devid) 9597 data_len += port->port_devid->len; 9598 if (port && port->target_devid) 9599 data_len += port->target_devid->len; 9600 9601 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9602 devid_ptr = (struct scsi_vpd_device_id *)ctsio->kern_data_ptr; 9603 ctsio->kern_sg_entries = 0; 9604 9605 if (data_len < alloc_len) { 9606 ctsio->residual = alloc_len - data_len; 9607 ctsio->kern_data_len = data_len; 9608 ctsio->kern_total_len = data_len; 9609 } else { 9610 ctsio->residual = 0; 9611 ctsio->kern_data_len = alloc_len; 9612 ctsio->kern_total_len = alloc_len; 9613 } 9614 ctsio->kern_data_resid = 0; 9615 ctsio->kern_rel_offset = 0; 9616 ctsio->kern_sg_entries = 0; 9617 9618 /* 9619 * The control device is always connected. The disk device, on the 9620 * other hand, may not be online all the time. 9621 */ 9622 if (lun != NULL) 9623 devid_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9624 lun->be_lun->lun_type; 9625 else 9626 devid_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9627 devid_ptr->page_code = SVPD_DEVICE_ID; 9628 scsi_ulto2b(data_len - 4, devid_ptr->length); 9629 9630 if (port && port->port_type == CTL_PORT_FC) 9631 proto = SCSI_PROTO_FC << 4; 9632 else if (port && port->port_type == CTL_PORT_ISCSI) 9633 proto = SCSI_PROTO_ISCSI << 4; 9634 else 9635 proto = SCSI_PROTO_SPI << 4; 9636 desc = (struct scsi_vpd_id_descriptor *)devid_ptr->desc_list; 9637 9638 /* 9639 * We're using a LUN association here. i.e., this device ID is a 9640 * per-LUN identifier. 9641 */ 9642 if (lun && lun->lun_devid) { 9643 memcpy(desc, lun->lun_devid->data, lun->lun_devid->len); 9644 desc = (struct scsi_vpd_id_descriptor *)((uint8_t *)desc + 9645 lun->lun_devid->len); 9646 } 9647 9648 /* 9649 * This is for the WWPN which is a port association. 9650 */ 9651 if (port && port->port_devid) { 9652 memcpy(desc, port->port_devid->data, port->port_devid->len); 9653 desc = (struct scsi_vpd_id_descriptor *)((uint8_t *)desc + 9654 port->port_devid->len); 9655 } 9656 9657 /* 9658 * This is for the Relative Target Port(type 4h) identifier 9659 */ 9660 desc->proto_codeset = proto | SVPD_ID_CODESET_BINARY; 9661 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_PORT | 9662 SVPD_ID_TYPE_RELTARG; 9663 desc->length = 4; 9664 scsi_ulto2b(ctsio->io_hdr.nexus.targ_port, &desc->identifier[2]); 9665 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 9666 sizeof(struct scsi_vpd_id_rel_trgt_port_id)); 9667 9668 /* 9669 * This is for the Target Port Group(type 5h) identifier 9670 */ 9671 desc->proto_codeset = proto | SVPD_ID_CODESET_BINARY; 9672 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_PORT | 9673 SVPD_ID_TYPE_TPORTGRP; 9674 desc->length = 4; 9675 if (softc->is_single || 9676 (port && port->status & CTL_PORT_STATUS_HA_SHARED)) 9677 g = 1; 9678 else 9679 g = 2 + ctsio->io_hdr.nexus.targ_port / softc->port_cnt; 9680 scsi_ulto2b(g, &desc->identifier[2]); 9681 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 9682 sizeof(struct scsi_vpd_id_trgt_port_grp_id)); 9683 9684 /* 9685 * This is for the Target identifier 9686 */ 9687 if (port && port->target_devid) { 9688 memcpy(desc, port->target_devid->data, port->target_devid->len); 9689 } 9690 9691 ctl_set_success(ctsio); 9692 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9693 ctsio->be_move_done = ctl_config_move_done; 9694 ctl_datamove((union ctl_io *)ctsio); 9695 return (CTL_RETVAL_COMPLETE); 9696} 9697 9698static int 9699ctl_inquiry_evpd_scsi_ports(struct ctl_scsiio *ctsio, int alloc_len) 9700{ 9701 struct ctl_softc *softc = CTL_SOFTC(ctsio); 9702 struct ctl_lun *lun = CTL_LUN(ctsio); 9703 struct scsi_vpd_scsi_ports *sp; 9704 struct scsi_vpd_port_designation *pd; 9705 struct scsi_vpd_port_designation_cont *pdc; 9706 struct ctl_port *port; 9707 int data_len, num_target_ports, iid_len, id_len; 9708 9709 num_target_ports = 0; 9710 iid_len = 0; 9711 id_len = 0; 9712 mtx_lock(&softc->ctl_lock); 9713 STAILQ_FOREACH(port, &softc->port_list, links) { 9714 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 9715 continue; 9716 if (lun != NULL && 9717 ctl_lun_map_to_port(port, lun->lun) == UINT32_MAX) 9718 continue; 9719 num_target_ports++; 9720 if (port->init_devid) 9721 iid_len += port->init_devid->len; 9722 if (port->port_devid) 9723 id_len += port->port_devid->len; 9724 } 9725 mtx_unlock(&softc->ctl_lock); 9726 9727 data_len = sizeof(struct scsi_vpd_scsi_ports) + 9728 num_target_ports * (sizeof(struct scsi_vpd_port_designation) + 9729 sizeof(struct scsi_vpd_port_designation_cont)) + iid_len + id_len; 9730 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9731 sp = (struct scsi_vpd_scsi_ports *)ctsio->kern_data_ptr; 9732 ctsio->kern_sg_entries = 0; 9733 9734 if (data_len < alloc_len) { 9735 ctsio->residual = alloc_len - data_len; 9736 ctsio->kern_data_len = data_len; 9737 ctsio->kern_total_len = data_len; 9738 } else { 9739 ctsio->residual = 0; 9740 ctsio->kern_data_len = alloc_len; 9741 ctsio->kern_total_len = alloc_len; 9742 } 9743 ctsio->kern_data_resid = 0; 9744 ctsio->kern_rel_offset = 0; 9745 ctsio->kern_sg_entries = 0; 9746 9747 /* 9748 * The control device is always connected. The disk device, on the 9749 * other hand, may not be online all the time. Need to change this 9750 * to figure out whether the disk device is actually online or not. 9751 */ 9752 if (lun != NULL) 9753 sp->device = (SID_QUAL_LU_CONNECTED << 5) | 9754 lun->be_lun->lun_type; 9755 else 9756 sp->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9757 9758 sp->page_code = SVPD_SCSI_PORTS; 9759 scsi_ulto2b(data_len - sizeof(struct scsi_vpd_scsi_ports), 9760 sp->page_length); 9761 pd = &sp->design[0]; 9762 9763 mtx_lock(&softc->ctl_lock); 9764 STAILQ_FOREACH(port, &softc->port_list, links) { 9765 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 9766 continue; 9767 if (lun != NULL && 9768 ctl_lun_map_to_port(port, lun->lun) == UINT32_MAX) 9769 continue; 9770 scsi_ulto2b(port->targ_port, pd->relative_port_id); 9771 if (port->init_devid) { 9772 iid_len = port->init_devid->len; 9773 memcpy(pd->initiator_transportid, 9774 port->init_devid->data, port->init_devid->len); 9775 } else 9776 iid_len = 0; 9777 scsi_ulto2b(iid_len, pd->initiator_transportid_length); 9778 pdc = (struct scsi_vpd_port_designation_cont *) 9779 (&pd->initiator_transportid[iid_len]); 9780 if (port->port_devid) { 9781 id_len = port->port_devid->len; 9782 memcpy(pdc->target_port_descriptors, 9783 port->port_devid->data, port->port_devid->len); 9784 } else 9785 id_len = 0; 9786 scsi_ulto2b(id_len, pdc->target_port_descriptors_length); 9787 pd = (struct scsi_vpd_port_designation *) 9788 ((uint8_t *)pdc->target_port_descriptors + id_len); 9789 } 9790 mtx_unlock(&softc->ctl_lock); 9791 9792 ctl_set_success(ctsio); 9793 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9794 ctsio->be_move_done = ctl_config_move_done; 9795 ctl_datamove((union ctl_io *)ctsio); 9796 return (CTL_RETVAL_COMPLETE); 9797} 9798 9799static int 9800ctl_inquiry_evpd_block_limits(struct ctl_scsiio *ctsio, int alloc_len) 9801{ 9802 struct ctl_lun *lun = CTL_LUN(ctsio); 9803 struct scsi_vpd_block_limits *bl_ptr; 9804 uint64_t ival; 9805 9806 ctsio->kern_data_ptr = malloc(sizeof(*bl_ptr), M_CTL, M_WAITOK | M_ZERO); 9807 bl_ptr = (struct scsi_vpd_block_limits *)ctsio->kern_data_ptr; 9808 ctsio->kern_sg_entries = 0; 9809 9810 if (sizeof(*bl_ptr) < alloc_len) { 9811 ctsio->residual = alloc_len - sizeof(*bl_ptr); 9812 ctsio->kern_data_len = sizeof(*bl_ptr); 9813 ctsio->kern_total_len = sizeof(*bl_ptr); 9814 } else { 9815 ctsio->residual = 0; 9816 ctsio->kern_data_len = alloc_len; 9817 ctsio->kern_total_len = alloc_len; 9818 } 9819 ctsio->kern_data_resid = 0; 9820 ctsio->kern_rel_offset = 0; 9821 ctsio->kern_sg_entries = 0; 9822 9823 /* 9824 * The control device is always connected. The disk device, on the 9825 * other hand, may not be online all the time. Need to change this 9826 * to figure out whether the disk device is actually online or not. 9827 */ 9828 if (lun != NULL) 9829 bl_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9830 lun->be_lun->lun_type; 9831 else 9832 bl_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9833 9834 bl_ptr->page_code = SVPD_BLOCK_LIMITS; 9835 scsi_ulto2b(sizeof(*bl_ptr) - 4, bl_ptr->page_length); 9836 bl_ptr->max_cmp_write_len = 0xff; 9837 scsi_ulto4b(0xffffffff, bl_ptr->max_txfer_len); 9838 if (lun != NULL) { 9839 scsi_ulto4b(lun->be_lun->opttxferlen, bl_ptr->opt_txfer_len); 9840 if (lun->be_lun->flags & CTL_LUN_FLAG_UNMAP) { 9841 ival = 0xffffffff; 9842 ctl_get_opt_number(&lun->be_lun->options, 9843 "unmap_max_lba", &ival); 9844 scsi_ulto4b(ival, bl_ptr->max_unmap_lba_cnt); 9845 ival = 0xffffffff; 9846 ctl_get_opt_number(&lun->be_lun->options, 9847 "unmap_max_descr", &ival); 9848 scsi_ulto4b(ival, bl_ptr->max_unmap_blk_cnt); 9849 if (lun->be_lun->ublockexp != 0) { 9850 scsi_ulto4b((1 << lun->be_lun->ublockexp), 9851 bl_ptr->opt_unmap_grain); 9852 scsi_ulto4b(0x80000000 | lun->be_lun->ublockoff, 9853 bl_ptr->unmap_grain_align); 9854 } 9855 } 9856 scsi_ulto4b(lun->be_lun->atomicblock, 9857 bl_ptr->max_atomic_transfer_length); 9858 scsi_ulto4b(0, bl_ptr->atomic_alignment); 9859 scsi_ulto4b(0, bl_ptr->atomic_transfer_length_granularity); 9860 scsi_ulto4b(0, bl_ptr->max_atomic_transfer_length_with_atomic_boundary); 9861 scsi_ulto4b(0, bl_ptr->max_atomic_boundary_size); 9862 ival = UINT64_MAX; 9863 ctl_get_opt_number(&lun->be_lun->options, "write_same_max_lba", &ival); 9864 scsi_u64to8b(ival, bl_ptr->max_write_same_length); 9865 } 9866 9867 ctl_set_success(ctsio); 9868 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9869 ctsio->be_move_done = ctl_config_move_done; 9870 ctl_datamove((union ctl_io *)ctsio); 9871 return (CTL_RETVAL_COMPLETE); 9872} 9873 9874static int 9875ctl_inquiry_evpd_bdc(struct ctl_scsiio *ctsio, int alloc_len) 9876{ 9877 struct ctl_lun *lun = CTL_LUN(ctsio); 9878 struct scsi_vpd_block_device_characteristics *bdc_ptr; 9879 const char *value; 9880 u_int i; 9881 9882 ctsio->kern_data_ptr = malloc(sizeof(*bdc_ptr), M_CTL, M_WAITOK | M_ZERO); 9883 bdc_ptr = (struct scsi_vpd_block_device_characteristics *)ctsio->kern_data_ptr; 9884 ctsio->kern_sg_entries = 0; 9885 9886 if (sizeof(*bdc_ptr) < alloc_len) { 9887 ctsio->residual = alloc_len - sizeof(*bdc_ptr); 9888 ctsio->kern_data_len = sizeof(*bdc_ptr); 9889 ctsio->kern_total_len = sizeof(*bdc_ptr); 9890 } else { 9891 ctsio->residual = 0; 9892 ctsio->kern_data_len = alloc_len; 9893 ctsio->kern_total_len = alloc_len; 9894 } 9895 ctsio->kern_data_resid = 0; 9896 ctsio->kern_rel_offset = 0; 9897 ctsio->kern_sg_entries = 0; 9898 9899 /* 9900 * The control device is always connected. The disk device, on the 9901 * other hand, may not be online all the time. Need to change this 9902 * to figure out whether the disk device is actually online or not. 9903 */ 9904 if (lun != NULL) 9905 bdc_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9906 lun->be_lun->lun_type; 9907 else 9908 bdc_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9909 bdc_ptr->page_code = SVPD_BDC; 9910 scsi_ulto2b(sizeof(*bdc_ptr) - 4, bdc_ptr->page_length); 9911 if (lun != NULL && 9912 (value = ctl_get_opt(&lun->be_lun->options, "rpm")) != NULL) 9913 i = strtol(value, NULL, 0); 9914 else 9915 i = CTL_DEFAULT_ROTATION_RATE; 9916 scsi_ulto2b(i, bdc_ptr->medium_rotation_rate); 9917 if (lun != NULL && 9918 (value = ctl_get_opt(&lun->be_lun->options, "formfactor")) != NULL) 9919 i = strtol(value, NULL, 0); 9920 else 9921 i = 0; 9922 bdc_ptr->wab_wac_ff = (i & 0x0f); 9923 bdc_ptr->flags = SVPD_FUAB | SVPD_VBULS; 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_lbp(struct ctl_scsiio *ctsio, int alloc_len) 9934{ 9935 struct ctl_lun *lun = CTL_LUN(ctsio); 9936 struct scsi_vpd_logical_block_prov *lbp_ptr; 9937 const char *value; 9938 9939 ctsio->kern_data_ptr = malloc(sizeof(*lbp_ptr), M_CTL, M_WAITOK | M_ZERO); 9940 lbp_ptr = (struct scsi_vpd_logical_block_prov *)ctsio->kern_data_ptr; 9941 ctsio->kern_sg_entries = 0; 9942 9943 if (sizeof(*lbp_ptr) < alloc_len) { 9944 ctsio->residual = alloc_len - sizeof(*lbp_ptr); 9945 ctsio->kern_data_len = sizeof(*lbp_ptr); 9946 ctsio->kern_total_len = sizeof(*lbp_ptr); 9947 } else { 9948 ctsio->residual = 0; 9949 ctsio->kern_data_len = alloc_len; 9950 ctsio->kern_total_len = alloc_len; 9951 } 9952 ctsio->kern_data_resid = 0; 9953 ctsio->kern_rel_offset = 0; 9954 ctsio->kern_sg_entries = 0; 9955 9956 /* 9957 * The control device is always connected. The disk device, on the 9958 * other hand, may not be online all the time. Need to change this 9959 * to figure out whether the disk device is actually online or not. 9960 */ 9961 if (lun != NULL) 9962 lbp_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9963 lun->be_lun->lun_type; 9964 else 9965 lbp_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9966 9967 lbp_ptr->page_code = SVPD_LBP; 9968 scsi_ulto2b(sizeof(*lbp_ptr) - 4, lbp_ptr->page_length); 9969 lbp_ptr->threshold_exponent = CTL_LBP_EXPONENT; 9970 if (lun != NULL && lun->be_lun->flags & CTL_LUN_FLAG_UNMAP) { 9971 lbp_ptr->flags = SVPD_LBP_UNMAP | SVPD_LBP_WS16 | 9972 SVPD_LBP_WS10 | SVPD_LBP_RZ | SVPD_LBP_ANC_SUP; 9973 value = ctl_get_opt(&lun->be_lun->options, "provisioning_type"); 9974 if (value != NULL) { 9975 if (strcmp(value, "resource") == 0) 9976 lbp_ptr->prov_type = SVPD_LBP_RESOURCE; 9977 else if (strcmp(value, "thin") == 0) 9978 lbp_ptr->prov_type = SVPD_LBP_THIN; 9979 } else 9980 lbp_ptr->prov_type = SVPD_LBP_THIN; 9981 } 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 9990/* 9991 * INQUIRY with the EVPD bit set. 9992 */ 9993static int 9994ctl_inquiry_evpd(struct ctl_scsiio *ctsio) 9995{ 9996 struct ctl_lun *lun = CTL_LUN(ctsio); 9997 struct scsi_inquiry *cdb; 9998 int alloc_len, retval; 9999 10000 cdb = (struct scsi_inquiry *)ctsio->cdb; 10001 alloc_len = scsi_2btoul(cdb->length); 10002 10003 switch (cdb->page_code) { 10004 case SVPD_SUPPORTED_PAGES: 10005 retval = ctl_inquiry_evpd_supported(ctsio, alloc_len); 10006 break; 10007 case SVPD_UNIT_SERIAL_NUMBER: 10008 retval = ctl_inquiry_evpd_serial(ctsio, alloc_len); 10009 break; 10010 case SVPD_DEVICE_ID: 10011 retval = ctl_inquiry_evpd_devid(ctsio, alloc_len); 10012 break; 10013 case SVPD_EXTENDED_INQUIRY_DATA: 10014 retval = ctl_inquiry_evpd_eid(ctsio, alloc_len); 10015 break; 10016 case SVPD_MODE_PAGE_POLICY: 10017 retval = ctl_inquiry_evpd_mpp(ctsio, alloc_len); 10018 break; 10019 case SVPD_SCSI_PORTS: 10020 retval = ctl_inquiry_evpd_scsi_ports(ctsio, alloc_len); 10021 break; 10022 case SVPD_SCSI_TPC: 10023 retval = ctl_inquiry_evpd_tpc(ctsio, alloc_len); 10024 break; 10025 case SVPD_BLOCK_LIMITS: 10026 if (lun == NULL || lun->be_lun->lun_type != T_DIRECT) 10027 goto err; 10028 retval = ctl_inquiry_evpd_block_limits(ctsio, alloc_len); 10029 break; 10030 case SVPD_BDC: 10031 if (lun == NULL || lun->be_lun->lun_type != T_DIRECT) 10032 goto err; 10033 retval = ctl_inquiry_evpd_bdc(ctsio, alloc_len); 10034 break; 10035 case SVPD_LBP: 10036 if (lun == NULL || lun->be_lun->lun_type != T_DIRECT) 10037 goto err; 10038 retval = ctl_inquiry_evpd_lbp(ctsio, alloc_len); 10039 break; 10040 default: 10041err: 10042 ctl_set_invalid_field(ctsio, 10043 /*sks_valid*/ 1, 10044 /*command*/ 1, 10045 /*field*/ 2, 10046 /*bit_valid*/ 0, 10047 /*bit*/ 0); 10048 ctl_done((union ctl_io *)ctsio); 10049 retval = CTL_RETVAL_COMPLETE; 10050 break; 10051 } 10052 10053 return (retval); 10054} 10055 10056/* 10057 * Standard INQUIRY data. 10058 */ 10059static int 10060ctl_inquiry_std(struct ctl_scsiio *ctsio) 10061{ 10062 struct ctl_softc *softc = CTL_SOFTC(ctsio); 10063 struct ctl_port *port = CTL_PORT(ctsio); 10064 struct ctl_lun *lun = CTL_LUN(ctsio); 10065 struct scsi_inquiry_data *inq_ptr; 10066 struct scsi_inquiry *cdb; 10067 char *val; 10068 uint32_t alloc_len, data_len; 10069 ctl_port_type port_type; 10070 10071 port_type = port->port_type; 10072 if (port_type == CTL_PORT_IOCTL || port_type == CTL_PORT_INTERNAL) 10073 port_type = CTL_PORT_SCSI; 10074 10075 cdb = (struct scsi_inquiry *)ctsio->cdb; 10076 alloc_len = scsi_2btoul(cdb->length); 10077 10078 /* 10079 * We malloc the full inquiry data size here and fill it 10080 * in. If the user only asks for less, we'll give him 10081 * that much. 10082 */ 10083 data_len = offsetof(struct scsi_inquiry_data, vendor_specific1); 10084 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 10085 inq_ptr = (struct scsi_inquiry_data *)ctsio->kern_data_ptr; 10086 ctsio->kern_sg_entries = 0; 10087 ctsio->kern_data_resid = 0; 10088 ctsio->kern_rel_offset = 0; 10089 10090 if (data_len < alloc_len) { 10091 ctsio->residual = alloc_len - data_len; 10092 ctsio->kern_data_len = data_len; 10093 ctsio->kern_total_len = data_len; 10094 } else { 10095 ctsio->residual = 0; 10096 ctsio->kern_data_len = alloc_len; 10097 ctsio->kern_total_len = alloc_len; 10098 } 10099 10100 if (lun != NULL) { 10101 if ((lun->flags & CTL_LUN_PRIMARY_SC) || 10102 softc->ha_link >= CTL_HA_LINK_UNKNOWN) { 10103 inq_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10104 lun->be_lun->lun_type; 10105 } else { 10106 inq_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | 10107 lun->be_lun->lun_type; 10108 } 10109 if (lun->flags & CTL_LUN_REMOVABLE) 10110 inq_ptr->dev_qual2 |= SID_RMB; 10111 } else 10112 inq_ptr->device = (SID_QUAL_BAD_LU << 5) | T_NODEVICE; 10113 10114 /* RMB in byte 2 is 0 */ 10115 inq_ptr->version = SCSI_REV_SPC5; 10116 10117 /* 10118 * According to SAM-3, even if a device only supports a single 10119 * level of LUN addressing, it should still set the HISUP bit: 10120 * 10121 * 4.9.1 Logical unit numbers overview 10122 * 10123 * All logical unit number formats described in this standard are 10124 * hierarchical in structure even when only a single level in that 10125 * hierarchy is used. The HISUP bit shall be set to one in the 10126 * standard INQUIRY data (see SPC-2) when any logical unit number 10127 * format described in this standard is used. Non-hierarchical 10128 * formats are outside the scope of this standard. 10129 * 10130 * Therefore we set the HiSup bit here. 10131 * 10132 * The response format is 2, per SPC-3. 10133 */ 10134 inq_ptr->response_format = SID_HiSup | 2; 10135 10136 inq_ptr->additional_length = data_len - 10137 (offsetof(struct scsi_inquiry_data, additional_length) + 1); 10138 CTL_DEBUG_PRINT(("additional_length = %d\n", 10139 inq_ptr->additional_length)); 10140 10141 inq_ptr->spc3_flags = SPC3_SID_3PC | SPC3_SID_TPGS_IMPLICIT; 10142 if (port_type == CTL_PORT_SCSI) 10143 inq_ptr->spc2_flags = SPC2_SID_ADDR16; 10144 inq_ptr->spc2_flags |= SPC2_SID_MultiP; 10145 inq_ptr->flags = SID_CmdQue; 10146 if (port_type == CTL_PORT_SCSI) 10147 inq_ptr->flags |= SID_WBus16 | SID_Sync; 10148 10149 /* 10150 * Per SPC-3, unused bytes in ASCII strings are filled with spaces. 10151 * We have 8 bytes for the vendor name, and 16 bytes for the device 10152 * name and 4 bytes for the revision. 10153 */ 10154 if (lun == NULL || (val = ctl_get_opt(&lun->be_lun->options, 10155 "vendor")) == NULL) { 10156 strncpy(inq_ptr->vendor, CTL_VENDOR, sizeof(inq_ptr->vendor)); 10157 } else { 10158 memset(inq_ptr->vendor, ' ', sizeof(inq_ptr->vendor)); 10159 strncpy(inq_ptr->vendor, val, 10160 min(sizeof(inq_ptr->vendor), strlen(val))); 10161 } 10162 if (lun == NULL) { 10163 strncpy(inq_ptr->product, CTL_DIRECT_PRODUCT, 10164 sizeof(inq_ptr->product)); 10165 } else if ((val = ctl_get_opt(&lun->be_lun->options, "product")) == NULL) { 10166 switch (lun->be_lun->lun_type) { 10167 case T_DIRECT: 10168 strncpy(inq_ptr->product, CTL_DIRECT_PRODUCT, 10169 sizeof(inq_ptr->product)); 10170 break; 10171 case T_PROCESSOR: 10172 strncpy(inq_ptr->product, CTL_PROCESSOR_PRODUCT, 10173 sizeof(inq_ptr->product)); 10174 break; 10175 case T_CDROM: 10176 strncpy(inq_ptr->product, CTL_CDROM_PRODUCT, 10177 sizeof(inq_ptr->product)); 10178 break; 10179 default: 10180 strncpy(inq_ptr->product, CTL_UNKNOWN_PRODUCT, 10181 sizeof(inq_ptr->product)); 10182 break; 10183 } 10184 } else { 10185 memset(inq_ptr->product, ' ', sizeof(inq_ptr->product)); 10186 strncpy(inq_ptr->product, val, 10187 min(sizeof(inq_ptr->product), strlen(val))); 10188 } 10189 10190 /* 10191 * XXX make this a macro somewhere so it automatically gets 10192 * incremented when we make changes. 10193 */ 10194 if (lun == NULL || (val = ctl_get_opt(&lun->be_lun->options, 10195 "revision")) == NULL) { 10196 strncpy(inq_ptr->revision, "0001", sizeof(inq_ptr->revision)); 10197 } else { 10198 memset(inq_ptr->revision, ' ', sizeof(inq_ptr->revision)); 10199 strncpy(inq_ptr->revision, val, 10200 min(sizeof(inq_ptr->revision), strlen(val))); 10201 } 10202 10203 /* 10204 * For parallel SCSI, we support double transition and single 10205 * transition clocking. We also support QAS (Quick Arbitration 10206 * and Selection) and Information Unit transfers on both the 10207 * control and array devices. 10208 */ 10209 if (port_type == CTL_PORT_SCSI) 10210 inq_ptr->spi3data = SID_SPI_CLOCK_DT_ST | SID_SPI_QAS | 10211 SID_SPI_IUS; 10212 10213 /* SAM-6 (no version claimed) */ 10214 scsi_ulto2b(0x00C0, inq_ptr->version1); 10215 /* SPC-5 (no version claimed) */ 10216 scsi_ulto2b(0x05C0, inq_ptr->version2); 10217 if (port_type == CTL_PORT_FC) { 10218 /* FCP-2 ANSI INCITS.350:2003 */ 10219 scsi_ulto2b(0x0917, inq_ptr->version3); 10220 } else if (port_type == CTL_PORT_SCSI) { 10221 /* SPI-4 ANSI INCITS.362:200x */ 10222 scsi_ulto2b(0x0B56, inq_ptr->version3); 10223 } else if (port_type == CTL_PORT_ISCSI) { 10224 /* iSCSI (no version claimed) */ 10225 scsi_ulto2b(0x0960, inq_ptr->version3); 10226 } else if (port_type == CTL_PORT_SAS) { 10227 /* SAS (no version claimed) */ 10228 scsi_ulto2b(0x0BE0, inq_ptr->version3); 10229 } 10230 10231 if (lun == NULL) { 10232 /* SBC-4 (no version claimed) */ 10233 scsi_ulto2b(0x0600, inq_ptr->version4); 10234 } else { 10235 switch (lun->be_lun->lun_type) { 10236 case T_DIRECT: 10237 /* SBC-4 (no version claimed) */ 10238 scsi_ulto2b(0x0600, inq_ptr->version4); 10239 break; 10240 case T_PROCESSOR: 10241 break; 10242 case T_CDROM: 10243 /* MMC-6 (no version claimed) */ 10244 scsi_ulto2b(0x04E0, inq_ptr->version4); 10245 break; 10246 default: 10247 break; 10248 } 10249 } 10250 10251 ctl_set_success(ctsio); 10252 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10253 ctsio->be_move_done = ctl_config_move_done; 10254 ctl_datamove((union ctl_io *)ctsio); 10255 return (CTL_RETVAL_COMPLETE); 10256} 10257 10258int 10259ctl_inquiry(struct ctl_scsiio *ctsio) 10260{ 10261 struct scsi_inquiry *cdb; 10262 int retval; 10263 10264 CTL_DEBUG_PRINT(("ctl_inquiry\n")); 10265 10266 cdb = (struct scsi_inquiry *)ctsio->cdb; 10267 if (cdb->byte2 & SI_EVPD) 10268 retval = ctl_inquiry_evpd(ctsio); 10269 else if (cdb->page_code == 0) 10270 retval = ctl_inquiry_std(ctsio); 10271 else { 10272 ctl_set_invalid_field(ctsio, 10273 /*sks_valid*/ 1, 10274 /*command*/ 1, 10275 /*field*/ 2, 10276 /*bit_valid*/ 0, 10277 /*bit*/ 0); 10278 ctl_done((union ctl_io *)ctsio); 10279 return (CTL_RETVAL_COMPLETE); 10280 } 10281 10282 return (retval); 10283} 10284 10285int 10286ctl_get_config(struct ctl_scsiio *ctsio) 10287{ 10288 struct ctl_lun *lun = CTL_LUN(ctsio); 10289 struct scsi_get_config_header *hdr; 10290 struct scsi_get_config_feature *feature; 10291 struct scsi_get_config *cdb; 10292 uint32_t alloc_len, data_len; 10293 int rt, starting; 10294 10295 cdb = (struct scsi_get_config *)ctsio->cdb; 10296 rt = (cdb->rt & SGC_RT_MASK); 10297 starting = scsi_2btoul(cdb->starting_feature); 10298 alloc_len = scsi_2btoul(cdb->length); 10299 10300 data_len = sizeof(struct scsi_get_config_header) + 10301 sizeof(struct scsi_get_config_feature) + 8 + 10302 sizeof(struct scsi_get_config_feature) + 8 + 10303 sizeof(struct scsi_get_config_feature) + 4 + 10304 sizeof(struct scsi_get_config_feature) + 4 + 10305 sizeof(struct scsi_get_config_feature) + 8 + 10306 sizeof(struct scsi_get_config_feature) + 10307 sizeof(struct scsi_get_config_feature) + 4 + 10308 sizeof(struct scsi_get_config_feature) + 4 + 10309 sizeof(struct scsi_get_config_feature) + 4 + 10310 sizeof(struct scsi_get_config_feature) + 4 + 10311 sizeof(struct scsi_get_config_feature) + 4 + 10312 sizeof(struct scsi_get_config_feature) + 4; 10313 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 10314 ctsio->kern_sg_entries = 0; 10315 ctsio->kern_data_resid = 0; 10316 ctsio->kern_rel_offset = 0; 10317 10318 hdr = (struct scsi_get_config_header *)ctsio->kern_data_ptr; 10319 if (lun->flags & CTL_LUN_NO_MEDIA) 10320 scsi_ulto2b(0x0000, hdr->current_profile); 10321 else 10322 scsi_ulto2b(0x0010, hdr->current_profile); 10323 feature = (struct scsi_get_config_feature *)(hdr + 1); 10324 10325 if (starting > 0x003b) 10326 goto done; 10327 if (starting > 0x003a) 10328 goto f3b; 10329 if (starting > 0x002b) 10330 goto f3a; 10331 if (starting > 0x002a) 10332 goto f2b; 10333 if (starting > 0x001f) 10334 goto f2a; 10335 if (starting > 0x001e) 10336 goto f1f; 10337 if (starting > 0x001d) 10338 goto f1e; 10339 if (starting > 0x0010) 10340 goto f1d; 10341 if (starting > 0x0003) 10342 goto f10; 10343 if (starting > 0x0002) 10344 goto f3; 10345 if (starting > 0x0001) 10346 goto f2; 10347 if (starting > 0x0000) 10348 goto f1; 10349 10350 /* Profile List */ 10351 scsi_ulto2b(0x0000, feature->feature_code); 10352 feature->flags = SGC_F_PERSISTENT | SGC_F_CURRENT; 10353 feature->add_length = 8; 10354 scsi_ulto2b(0x0008, &feature->feature_data[0]); /* CD-ROM */ 10355 feature->feature_data[2] = 0x00; 10356 scsi_ulto2b(0x0010, &feature->feature_data[4]); /* DVD-ROM */ 10357 feature->feature_data[6] = 0x01; 10358 feature = (struct scsi_get_config_feature *) 10359 &feature->feature_data[feature->add_length]; 10360 10361f1: /* Core */ 10362 scsi_ulto2b(0x0001, feature->feature_code); 10363 feature->flags = 0x08 | SGC_F_PERSISTENT | SGC_F_CURRENT; 10364 feature->add_length = 8; 10365 scsi_ulto4b(0x00000000, &feature->feature_data[0]); 10366 feature->feature_data[4] = 0x03; 10367 feature = (struct scsi_get_config_feature *) 10368 &feature->feature_data[feature->add_length]; 10369 10370f2: /* Morphing */ 10371 scsi_ulto2b(0x0002, feature->feature_code); 10372 feature->flags = 0x04 | SGC_F_PERSISTENT | SGC_F_CURRENT; 10373 feature->add_length = 4; 10374 feature->feature_data[0] = 0x02; 10375 feature = (struct scsi_get_config_feature *) 10376 &feature->feature_data[feature->add_length]; 10377 10378f3: /* Removable Medium */ 10379 scsi_ulto2b(0x0003, feature->feature_code); 10380 feature->flags = 0x04 | SGC_F_PERSISTENT | SGC_F_CURRENT; 10381 feature->add_length = 4; 10382 feature->feature_data[0] = 0x39; 10383 feature = (struct scsi_get_config_feature *) 10384 &feature->feature_data[feature->add_length]; 10385 10386 if (rt == SGC_RT_CURRENT && (lun->flags & CTL_LUN_NO_MEDIA)) 10387 goto done; 10388 10389f10: /* Random Read */ 10390 scsi_ulto2b(0x0010, feature->feature_code); 10391 feature->flags = 0x00; 10392 if ((lun->flags & CTL_LUN_NO_MEDIA) == 0) 10393 feature->flags |= SGC_F_CURRENT; 10394 feature->add_length = 8; 10395 scsi_ulto4b(lun->be_lun->blocksize, &feature->feature_data[0]); 10396 scsi_ulto2b(1, &feature->feature_data[4]); 10397 feature->feature_data[6] = 0x00; 10398 feature = (struct scsi_get_config_feature *) 10399 &feature->feature_data[feature->add_length]; 10400 10401f1d: /* Multi-Read */ 10402 scsi_ulto2b(0x001D, feature->feature_code); 10403 feature->flags = 0x00; 10404 if ((lun->flags & CTL_LUN_NO_MEDIA) == 0) 10405 feature->flags |= SGC_F_CURRENT; 10406 feature->add_length = 0; 10407 feature = (struct scsi_get_config_feature *) 10408 &feature->feature_data[feature->add_length]; 10409 10410f1e: /* CD Read */ 10411 scsi_ulto2b(0x001E, feature->feature_code); 10412 feature->flags = 0x00; 10413 if ((lun->flags & CTL_LUN_NO_MEDIA) == 0) 10414 feature->flags |= SGC_F_CURRENT; 10415 feature->add_length = 4; 10416 feature->feature_data[0] = 0x00; 10417 feature = (struct scsi_get_config_feature *) 10418 &feature->feature_data[feature->add_length]; 10419 10420f1f: /* DVD Read */ 10421 scsi_ulto2b(0x001F, feature->feature_code); 10422 feature->flags = 0x08; 10423 if ((lun->flags & CTL_LUN_NO_MEDIA) == 0) 10424 feature->flags |= SGC_F_CURRENT; 10425 feature->add_length = 4; 10426 feature->feature_data[0] = 0x01; 10427 feature->feature_data[2] = 0x03; 10428 feature = (struct scsi_get_config_feature *) 10429 &feature->feature_data[feature->add_length]; 10430 10431f2a: /* DVD+RW */ 10432 scsi_ulto2b(0x002A, feature->feature_code); 10433 feature->flags = 0x04; 10434 if ((lun->flags & CTL_LUN_NO_MEDIA) == 0) 10435 feature->flags |= SGC_F_CURRENT; 10436 feature->add_length = 4; 10437 feature->feature_data[0] = 0x00; 10438 feature->feature_data[1] = 0x00; 10439 feature = (struct scsi_get_config_feature *) 10440 &feature->feature_data[feature->add_length]; 10441 10442f2b: /* DVD+R */ 10443 scsi_ulto2b(0x002B, feature->feature_code); 10444 feature->flags = 0x00; 10445 if ((lun->flags & CTL_LUN_NO_MEDIA) == 0) 10446 feature->flags |= SGC_F_CURRENT; 10447 feature->add_length = 4; 10448 feature->feature_data[0] = 0x00; 10449 feature = (struct scsi_get_config_feature *) 10450 &feature->feature_data[feature->add_length]; 10451 10452f3a: /* DVD+RW Dual Layer */ 10453 scsi_ulto2b(0x003A, feature->feature_code); 10454 feature->flags = 0x00; 10455 if ((lun->flags & CTL_LUN_NO_MEDIA) == 0) 10456 feature->flags |= SGC_F_CURRENT; 10457 feature->add_length = 4; 10458 feature->feature_data[0] = 0x00; 10459 feature->feature_data[1] = 0x00; 10460 feature = (struct scsi_get_config_feature *) 10461 &feature->feature_data[feature->add_length]; 10462 10463f3b: /* DVD+R Dual Layer */ 10464 scsi_ulto2b(0x003B, feature->feature_code); 10465 feature->flags = 0x00; 10466 if ((lun->flags & CTL_LUN_NO_MEDIA) == 0) 10467 feature->flags |= SGC_F_CURRENT; 10468 feature->add_length = 4; 10469 feature->feature_data[0] = 0x00; 10470 feature = (struct scsi_get_config_feature *) 10471 &feature->feature_data[feature->add_length]; 10472 10473done: 10474 data_len = (uint8_t *)feature - (uint8_t *)hdr; 10475 if (rt == SGC_RT_SPECIFIC && data_len > 4) { 10476 feature = (struct scsi_get_config_feature *)(hdr + 1); 10477 if (scsi_2btoul(feature->feature_code) == starting) 10478 feature = (struct scsi_get_config_feature *) 10479 &feature->feature_data[feature->add_length]; 10480 data_len = (uint8_t *)feature - (uint8_t *)hdr; 10481 } 10482 scsi_ulto4b(data_len - 4, hdr->data_length); 10483 if (data_len < alloc_len) { 10484 ctsio->residual = alloc_len - data_len; 10485 ctsio->kern_data_len = data_len; 10486 ctsio->kern_total_len = data_len; 10487 } else { 10488 ctsio->residual = 0; 10489 ctsio->kern_data_len = alloc_len; 10490 ctsio->kern_total_len = alloc_len; 10491 } 10492 10493 ctl_set_success(ctsio); 10494 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10495 ctsio->be_move_done = ctl_config_move_done; 10496 ctl_datamove((union ctl_io *)ctsio); 10497 return (CTL_RETVAL_COMPLETE); 10498} 10499 10500int 10501ctl_get_event_status(struct ctl_scsiio *ctsio) 10502{ 10503 struct scsi_get_event_status_header *hdr; 10504 struct scsi_get_event_status *cdb; 10505 uint32_t alloc_len, data_len; 10506 int notif_class; 10507 10508 cdb = (struct scsi_get_event_status *)ctsio->cdb; 10509 if ((cdb->byte2 & SGESN_POLLED) == 0) { 10510 ctl_set_invalid_field(ctsio, /*sks_valid*/ 1, /*command*/ 1, 10511 /*field*/ 1, /*bit_valid*/ 1, /*bit*/ 0); 10512 ctl_done((union ctl_io *)ctsio); 10513 return (CTL_RETVAL_COMPLETE); 10514 } 10515 notif_class = cdb->notif_class; 10516 alloc_len = scsi_2btoul(cdb->length); 10517 10518 data_len = sizeof(struct scsi_get_event_status_header); 10519 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 10520 ctsio->kern_sg_entries = 0; 10521 ctsio->kern_data_resid = 0; 10522 ctsio->kern_rel_offset = 0; 10523 10524 if (data_len < alloc_len) { 10525 ctsio->residual = alloc_len - data_len; 10526 ctsio->kern_data_len = data_len; 10527 ctsio->kern_total_len = data_len; 10528 } else { 10529 ctsio->residual = 0; 10530 ctsio->kern_data_len = alloc_len; 10531 ctsio->kern_total_len = alloc_len; 10532 } 10533 10534 hdr = (struct scsi_get_event_status_header *)ctsio->kern_data_ptr; 10535 scsi_ulto2b(0, hdr->descr_length); 10536 hdr->nea_class = SGESN_NEA; 10537 hdr->supported_class = 0; 10538 10539 ctl_set_success(ctsio); 10540 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10541 ctsio->be_move_done = ctl_config_move_done; 10542 ctl_datamove((union ctl_io *)ctsio); 10543 return (CTL_RETVAL_COMPLETE); 10544} 10545 10546int 10547ctl_mechanism_status(struct ctl_scsiio *ctsio) 10548{ 10549 struct scsi_mechanism_status_header *hdr; 10550 struct scsi_mechanism_status *cdb; 10551 uint32_t alloc_len, data_len; 10552 10553 cdb = (struct scsi_mechanism_status *)ctsio->cdb; 10554 alloc_len = scsi_2btoul(cdb->length); 10555 10556 data_len = sizeof(struct scsi_mechanism_status_header); 10557 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 10558 ctsio->kern_sg_entries = 0; 10559 ctsio->kern_data_resid = 0; 10560 ctsio->kern_rel_offset = 0; 10561 10562 if (data_len < alloc_len) { 10563 ctsio->residual = alloc_len - data_len; 10564 ctsio->kern_data_len = data_len; 10565 ctsio->kern_total_len = data_len; 10566 } else { 10567 ctsio->residual = 0; 10568 ctsio->kern_data_len = alloc_len; 10569 ctsio->kern_total_len = alloc_len; 10570 } 10571 10572 hdr = (struct scsi_mechanism_status_header *)ctsio->kern_data_ptr; 10573 hdr->state1 = 0x00; 10574 hdr->state2 = 0xe0; 10575 scsi_ulto3b(0, hdr->lba); 10576 hdr->slots_num = 0; 10577 scsi_ulto2b(0, hdr->slots_length); 10578 10579 ctl_set_success(ctsio); 10580 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10581 ctsio->be_move_done = ctl_config_move_done; 10582 ctl_datamove((union ctl_io *)ctsio); 10583 return (CTL_RETVAL_COMPLETE); 10584} 10585 10586static void 10587ctl_ultomsf(uint32_t lba, uint8_t *buf) 10588{ 10589 10590 lba += 150; 10591 buf[0] = 0; 10592 buf[1] = bin2bcd((lba / 75) / 60); 10593 buf[2] = bin2bcd((lba / 75) % 60); 10594 buf[3] = bin2bcd(lba % 75); 10595} 10596 10597int 10598ctl_read_toc(struct ctl_scsiio *ctsio) 10599{ 10600 struct ctl_lun *lun = CTL_LUN(ctsio); 10601 struct scsi_read_toc_hdr *hdr; 10602 struct scsi_read_toc_type01_descr *descr; 10603 struct scsi_read_toc *cdb; 10604 uint32_t alloc_len, data_len; 10605 int format, msf; 10606 10607 cdb = (struct scsi_read_toc *)ctsio->cdb; 10608 msf = (cdb->byte2 & CD_MSF) != 0; 10609 format = cdb->format; 10610 alloc_len = scsi_2btoul(cdb->data_len); 10611 10612 data_len = sizeof(struct scsi_read_toc_hdr); 10613 if (format == 0) 10614 data_len += 2 * sizeof(struct scsi_read_toc_type01_descr); 10615 else 10616 data_len += sizeof(struct scsi_read_toc_type01_descr); 10617 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 10618 ctsio->kern_sg_entries = 0; 10619 ctsio->kern_data_resid = 0; 10620 ctsio->kern_rel_offset = 0; 10621 10622 if (data_len < alloc_len) { 10623 ctsio->residual = alloc_len - data_len; 10624 ctsio->kern_data_len = data_len; 10625 ctsio->kern_total_len = data_len; 10626 } else { 10627 ctsio->residual = 0; 10628 ctsio->kern_data_len = alloc_len; 10629 ctsio->kern_total_len = alloc_len; 10630 } 10631 10632 hdr = (struct scsi_read_toc_hdr *)ctsio->kern_data_ptr; 10633 if (format == 0) { 10634 scsi_ulto2b(0x12, hdr->data_length); 10635 hdr->first = 1; 10636 hdr->last = 1; 10637 descr = (struct scsi_read_toc_type01_descr *)(hdr + 1); 10638 descr->addr_ctl = 0x14; 10639 descr->track_number = 1; 10640 if (msf) 10641 ctl_ultomsf(0, descr->track_start); 10642 else 10643 scsi_ulto4b(0, descr->track_start); 10644 descr++; 10645 descr->addr_ctl = 0x14; 10646 descr->track_number = 0xaa; 10647 if (msf) 10648 ctl_ultomsf(lun->be_lun->maxlba+1, descr->track_start); 10649 else 10650 scsi_ulto4b(lun->be_lun->maxlba+1, descr->track_start); 10651 } else { 10652 scsi_ulto2b(0x0a, hdr->data_length); 10653 hdr->first = 1; 10654 hdr->last = 1; 10655 descr = (struct scsi_read_toc_type01_descr *)(hdr + 1); 10656 descr->addr_ctl = 0x14; 10657 descr->track_number = 1; 10658 if (msf) 10659 ctl_ultomsf(0, descr->track_start); 10660 else 10661 scsi_ulto4b(0, descr->track_start); 10662 } 10663 10664 ctl_set_success(ctsio); 10665 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10666 ctsio->be_move_done = ctl_config_move_done; 10667 ctl_datamove((union ctl_io *)ctsio); 10668 return (CTL_RETVAL_COMPLETE); 10669} 10670 10671/* 10672 * For known CDB types, parse the LBA and length. 10673 */ 10674static int 10675ctl_get_lba_len(union ctl_io *io, uint64_t *lba, uint64_t *len) 10676{ 10677 if (io->io_hdr.io_type != CTL_IO_SCSI) 10678 return (1); 10679 10680 switch (io->scsiio.cdb[0]) { 10681 case COMPARE_AND_WRITE: { 10682 struct scsi_compare_and_write *cdb; 10683 10684 cdb = (struct scsi_compare_and_write *)io->scsiio.cdb; 10685 10686 *lba = scsi_8btou64(cdb->addr); 10687 *len = cdb->length; 10688 break; 10689 } 10690 case READ_6: 10691 case WRITE_6: { 10692 struct scsi_rw_6 *cdb; 10693 10694 cdb = (struct scsi_rw_6 *)io->scsiio.cdb; 10695 10696 *lba = scsi_3btoul(cdb->addr); 10697 /* only 5 bits are valid in the most significant address byte */ 10698 *lba &= 0x1fffff; 10699 *len = cdb->length; 10700 break; 10701 } 10702 case READ_10: 10703 case WRITE_10: { 10704 struct scsi_rw_10 *cdb; 10705 10706 cdb = (struct scsi_rw_10 *)io->scsiio.cdb; 10707 10708 *lba = scsi_4btoul(cdb->addr); 10709 *len = scsi_2btoul(cdb->length); 10710 break; 10711 } 10712 case WRITE_VERIFY_10: { 10713 struct scsi_write_verify_10 *cdb; 10714 10715 cdb = (struct scsi_write_verify_10 *)io->scsiio.cdb; 10716 10717 *lba = scsi_4btoul(cdb->addr); 10718 *len = scsi_2btoul(cdb->length); 10719 break; 10720 } 10721 case READ_12: 10722 case WRITE_12: { 10723 struct scsi_rw_12 *cdb; 10724 10725 cdb = (struct scsi_rw_12 *)io->scsiio.cdb; 10726 10727 *lba = scsi_4btoul(cdb->addr); 10728 *len = scsi_4btoul(cdb->length); 10729 break; 10730 } 10731 case WRITE_VERIFY_12: { 10732 struct scsi_write_verify_12 *cdb; 10733 10734 cdb = (struct scsi_write_verify_12 *)io->scsiio.cdb; 10735 10736 *lba = scsi_4btoul(cdb->addr); 10737 *len = scsi_4btoul(cdb->length); 10738 break; 10739 } 10740 case READ_16: 10741 case WRITE_16: { 10742 struct scsi_rw_16 *cdb; 10743 10744 cdb = (struct scsi_rw_16 *)io->scsiio.cdb; 10745 10746 *lba = scsi_8btou64(cdb->addr); 10747 *len = scsi_4btoul(cdb->length); 10748 break; 10749 } 10750 case WRITE_ATOMIC_16: { 10751 struct scsi_write_atomic_16 *cdb; 10752 10753 cdb = (struct scsi_write_atomic_16 *)io->scsiio.cdb; 10754 10755 *lba = scsi_8btou64(cdb->addr); 10756 *len = scsi_2btoul(cdb->length); 10757 break; 10758 } 10759 case WRITE_VERIFY_16: { 10760 struct scsi_write_verify_16 *cdb; 10761 10762 cdb = (struct scsi_write_verify_16 *)io->scsiio.cdb; 10763 10764 *lba = scsi_8btou64(cdb->addr); 10765 *len = scsi_4btoul(cdb->length); 10766 break; 10767 } 10768 case WRITE_SAME_10: { 10769 struct scsi_write_same_10 *cdb; 10770 10771 cdb = (struct scsi_write_same_10 *)io->scsiio.cdb; 10772 10773 *lba = scsi_4btoul(cdb->addr); 10774 *len = scsi_2btoul(cdb->length); 10775 break; 10776 } 10777 case WRITE_SAME_16: { 10778 struct scsi_write_same_16 *cdb; 10779 10780 cdb = (struct scsi_write_same_16 *)io->scsiio.cdb; 10781 10782 *lba = scsi_8btou64(cdb->addr); 10783 *len = scsi_4btoul(cdb->length); 10784 break; 10785 } 10786 case VERIFY_10: { 10787 struct scsi_verify_10 *cdb; 10788 10789 cdb = (struct scsi_verify_10 *)io->scsiio.cdb; 10790 10791 *lba = scsi_4btoul(cdb->addr); 10792 *len = scsi_2btoul(cdb->length); 10793 break; 10794 } 10795 case VERIFY_12: { 10796 struct scsi_verify_12 *cdb; 10797 10798 cdb = (struct scsi_verify_12 *)io->scsiio.cdb; 10799 10800 *lba = scsi_4btoul(cdb->addr); 10801 *len = scsi_4btoul(cdb->length); 10802 break; 10803 } 10804 case VERIFY_16: { 10805 struct scsi_verify_16 *cdb; 10806 10807 cdb = (struct scsi_verify_16 *)io->scsiio.cdb; 10808 10809 *lba = scsi_8btou64(cdb->addr); 10810 *len = scsi_4btoul(cdb->length); 10811 break; 10812 } 10813 case UNMAP: { 10814 *lba = 0; 10815 *len = UINT64_MAX; 10816 break; 10817 } 10818 case SERVICE_ACTION_IN: { /* GET LBA STATUS */ 10819 struct scsi_get_lba_status *cdb; 10820 10821 cdb = (struct scsi_get_lba_status *)io->scsiio.cdb; 10822 *lba = scsi_8btou64(cdb->addr); 10823 *len = UINT32_MAX; 10824 break; 10825 } 10826 default: 10827 return (1); 10828 break; /* NOTREACHED */ 10829 } 10830 10831 return (0); 10832} 10833 10834static ctl_action 10835ctl_extent_check_lba(uint64_t lba1, uint64_t len1, uint64_t lba2, uint64_t len2, 10836 bool seq) 10837{ 10838 uint64_t endlba1, endlba2; 10839 10840 endlba1 = lba1 + len1 - (seq ? 0 : 1); 10841 endlba2 = lba2 + len2 - 1; 10842 10843 if ((endlba1 < lba2) || (endlba2 < lba1)) 10844 return (CTL_ACTION_PASS); 10845 else 10846 return (CTL_ACTION_BLOCK); 10847} 10848 10849static int 10850ctl_extent_check_unmap(union ctl_io *io, uint64_t lba2, uint64_t len2) 10851{ 10852 struct ctl_ptr_len_flags *ptrlen; 10853 struct scsi_unmap_desc *buf, *end, *range; 10854 uint64_t lba; 10855 uint32_t len; 10856 10857 /* If not UNMAP -- go other way. */ 10858 if (io->io_hdr.io_type != CTL_IO_SCSI || 10859 io->scsiio.cdb[0] != UNMAP) 10860 return (CTL_ACTION_ERROR); 10861 10862 /* If UNMAP without data -- block and wait for data. */ 10863 ptrlen = (struct ctl_ptr_len_flags *) 10864 &io->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 10865 if ((io->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0 || 10866 ptrlen->ptr == NULL) 10867 return (CTL_ACTION_BLOCK); 10868 10869 /* UNMAP with data -- check for collision. */ 10870 buf = (struct scsi_unmap_desc *)ptrlen->ptr; 10871 end = buf + ptrlen->len / sizeof(*buf); 10872 for (range = buf; range < end; range++) { 10873 lba = scsi_8btou64(range->lba); 10874 len = scsi_4btoul(range->length); 10875 if ((lba < lba2 + len2) && (lba + len > lba2)) 10876 return (CTL_ACTION_BLOCK); 10877 } 10878 return (CTL_ACTION_PASS); 10879} 10880 10881static ctl_action 10882ctl_extent_check(union ctl_io *io1, union ctl_io *io2, bool seq) 10883{ 10884 uint64_t lba1, lba2; 10885 uint64_t len1, len2; 10886 int retval; 10887 10888 if (ctl_get_lba_len(io2, &lba2, &len2) != 0) 10889 return (CTL_ACTION_ERROR); 10890 10891 retval = ctl_extent_check_unmap(io1, lba2, len2); 10892 if (retval != CTL_ACTION_ERROR) 10893 return (retval); 10894 10895 if (ctl_get_lba_len(io1, &lba1, &len1) != 0) 10896 return (CTL_ACTION_ERROR); 10897 10898 if (io1->io_hdr.flags & CTL_FLAG_SERSEQ_DONE) 10899 seq = FALSE; 10900 return (ctl_extent_check_lba(lba1, len1, lba2, len2, seq)); 10901} 10902 10903static ctl_action 10904ctl_extent_check_seq(union ctl_io *io1, union ctl_io *io2) 10905{ 10906 uint64_t lba1, lba2; 10907 uint64_t len1, len2; 10908 10909 if (io1->io_hdr.flags & CTL_FLAG_SERSEQ_DONE) 10910 return (CTL_ACTION_PASS); 10911 if (ctl_get_lba_len(io1, &lba1, &len1) != 0) 10912 return (CTL_ACTION_ERROR); 10913 if (ctl_get_lba_len(io2, &lba2, &len2) != 0) 10914 return (CTL_ACTION_ERROR); 10915 10916 if (lba1 + len1 == lba2) 10917 return (CTL_ACTION_BLOCK); 10918 return (CTL_ACTION_PASS); 10919} 10920 10921static ctl_action 10922ctl_check_for_blockage(struct ctl_lun *lun, union ctl_io *pending_io, 10923 union ctl_io *ooa_io) 10924{ 10925 const struct ctl_cmd_entry *pending_entry, *ooa_entry; 10926 const ctl_serialize_action *serialize_row; 10927 10928 /* 10929 * The initiator attempted multiple untagged commands at the same 10930 * time. Can't do that. 10931 */ 10932 if ((pending_io->scsiio.tag_type == CTL_TAG_UNTAGGED) 10933 && (ooa_io->scsiio.tag_type == CTL_TAG_UNTAGGED) 10934 && ((pending_io->io_hdr.nexus.targ_port == 10935 ooa_io->io_hdr.nexus.targ_port) 10936 && (pending_io->io_hdr.nexus.initid == 10937 ooa_io->io_hdr.nexus.initid)) 10938 && ((ooa_io->io_hdr.flags & (CTL_FLAG_ABORT | 10939 CTL_FLAG_STATUS_SENT)) == 0)) 10940 return (CTL_ACTION_OVERLAP); 10941 10942 /* 10943 * The initiator attempted to send multiple tagged commands with 10944 * the same ID. (It's fine if different initiators have the same 10945 * tag ID.) 10946 * 10947 * Even if all of those conditions are true, we don't kill the I/O 10948 * if the command ahead of us has been aborted. We won't end up 10949 * sending it to the FETD, and it's perfectly legal to resend a 10950 * command with the same tag number as long as the previous 10951 * instance of this tag number has been aborted somehow. 10952 */ 10953 if ((pending_io->scsiio.tag_type != CTL_TAG_UNTAGGED) 10954 && (ooa_io->scsiio.tag_type != CTL_TAG_UNTAGGED) 10955 && (pending_io->scsiio.tag_num == ooa_io->scsiio.tag_num) 10956 && ((pending_io->io_hdr.nexus.targ_port == 10957 ooa_io->io_hdr.nexus.targ_port) 10958 && (pending_io->io_hdr.nexus.initid == 10959 ooa_io->io_hdr.nexus.initid)) 10960 && ((ooa_io->io_hdr.flags & (CTL_FLAG_ABORT | 10961 CTL_FLAG_STATUS_SENT)) == 0)) 10962 return (CTL_ACTION_OVERLAP_TAG); 10963 10964 /* 10965 * If we get a head of queue tag, SAM-3 says that we should 10966 * immediately execute it. 10967 * 10968 * What happens if this command would normally block for some other 10969 * reason? e.g. a request sense with a head of queue tag 10970 * immediately after a write. Normally that would block, but this 10971 * will result in its getting executed immediately... 10972 * 10973 * We currently return "pass" instead of "skip", so we'll end up 10974 * going through the rest of the queue to check for overlapped tags. 10975 * 10976 * XXX KDM check for other types of blockage first?? 10977 */ 10978 if (pending_io->scsiio.tag_type == CTL_TAG_HEAD_OF_QUEUE) 10979 return (CTL_ACTION_PASS); 10980 10981 /* 10982 * Ordered tags have to block until all items ahead of them 10983 * have completed. If we get called with an ordered tag, we always 10984 * block, if something else is ahead of us in the queue. 10985 */ 10986 if (pending_io->scsiio.tag_type == CTL_TAG_ORDERED) 10987 return (CTL_ACTION_BLOCK); 10988 10989 /* 10990 * Simple tags get blocked until all head of queue and ordered tags 10991 * ahead of them have completed. I'm lumping untagged commands in 10992 * with simple tags here. XXX KDM is that the right thing to do? 10993 */ 10994 if (((pending_io->scsiio.tag_type == CTL_TAG_UNTAGGED) 10995 || (pending_io->scsiio.tag_type == CTL_TAG_SIMPLE)) 10996 && ((ooa_io->scsiio.tag_type == CTL_TAG_HEAD_OF_QUEUE) 10997 || (ooa_io->scsiio.tag_type == CTL_TAG_ORDERED))) 10998 return (CTL_ACTION_BLOCK); 10999 11000 pending_entry = ctl_get_cmd_entry(&pending_io->scsiio, NULL); 11001 KASSERT(pending_entry->seridx < CTL_SERIDX_COUNT, 11002 ("%s: Invalid seridx %d for pending CDB %02x %02x @ %p", 11003 __func__, pending_entry->seridx, pending_io->scsiio.cdb[0], 11004 pending_io->scsiio.cdb[1], pending_io)); 11005 ooa_entry = ctl_get_cmd_entry(&ooa_io->scsiio, NULL); 11006 if (ooa_entry->seridx == CTL_SERIDX_INVLD) 11007 return (CTL_ACTION_PASS); /* Unsupported command in OOA queue */ 11008 KASSERT(ooa_entry->seridx < CTL_SERIDX_COUNT, 11009 ("%s: Invalid seridx %d for ooa CDB %02x %02x @ %p", 11010 __func__, ooa_entry->seridx, ooa_io->scsiio.cdb[0], 11011 ooa_io->scsiio.cdb[1], ooa_io)); 11012 11013 serialize_row = ctl_serialize_table[ooa_entry->seridx]; 11014 11015 switch (serialize_row[pending_entry->seridx]) { 11016 case CTL_SER_BLOCK: 11017 return (CTL_ACTION_BLOCK); 11018 case CTL_SER_EXTENT: 11019 return (ctl_extent_check(ooa_io, pending_io, 11020 (lun->be_lun && lun->be_lun->serseq == CTL_LUN_SERSEQ_ON))); 11021 case CTL_SER_EXTENTOPT: 11022 if ((lun->MODE_CTRL.queue_flags & SCP_QUEUE_ALG_MASK) != 11023 SCP_QUEUE_ALG_UNRESTRICTED) 11024 return (ctl_extent_check(ooa_io, pending_io, 11025 (lun->be_lun && 11026 lun->be_lun->serseq == CTL_LUN_SERSEQ_ON))); 11027 return (CTL_ACTION_PASS); 11028 case CTL_SER_EXTENTSEQ: 11029 if (lun->be_lun && lun->be_lun->serseq != CTL_LUN_SERSEQ_OFF) 11030 return (ctl_extent_check_seq(ooa_io, pending_io)); 11031 return (CTL_ACTION_PASS); 11032 case CTL_SER_PASS: 11033 return (CTL_ACTION_PASS); 11034 case CTL_SER_BLOCKOPT: 11035 if ((lun->MODE_CTRL.queue_flags & SCP_QUEUE_ALG_MASK) != 11036 SCP_QUEUE_ALG_UNRESTRICTED) 11037 return (CTL_ACTION_BLOCK); 11038 return (CTL_ACTION_PASS); 11039 case CTL_SER_SKIP: 11040 return (CTL_ACTION_SKIP); 11041 default: 11042 panic("%s: Invalid serialization value %d for %d => %d", 11043 __func__, serialize_row[pending_entry->seridx], 11044 pending_entry->seridx, ooa_entry->seridx); 11045 } 11046 11047 return (CTL_ACTION_ERROR); 11048} 11049 11050/* 11051 * Check for blockage or overlaps against the OOA (Order Of Arrival) queue. 11052 * Assumptions: 11053 * - pending_io is generally either incoming, or on the blocked queue 11054 * - starting I/O is the I/O we want to start the check with. 11055 */ 11056static ctl_action 11057ctl_check_ooa(struct ctl_lun *lun, union ctl_io *pending_io, 11058 union ctl_io *starting_io) 11059{ 11060 union ctl_io *ooa_io; 11061 ctl_action action; 11062 11063 mtx_assert(&lun->lun_lock, MA_OWNED); 11064 11065 /* 11066 * Run back along the OOA queue, starting with the current 11067 * blocked I/O and going through every I/O before it on the 11068 * queue. If starting_io is NULL, we'll just end up returning 11069 * CTL_ACTION_PASS. 11070 */ 11071 for (ooa_io = starting_io; ooa_io != NULL; 11072 ooa_io = (union ctl_io *)TAILQ_PREV(&ooa_io->io_hdr, ctl_ooaq, 11073 ooa_links)){ 11074 11075 /* 11076 * This routine just checks to see whether 11077 * cur_blocked is blocked by ooa_io, which is ahead 11078 * of it in the queue. It doesn't queue/dequeue 11079 * cur_blocked. 11080 */ 11081 action = ctl_check_for_blockage(lun, pending_io, ooa_io); 11082 switch (action) { 11083 case CTL_ACTION_BLOCK: 11084 case CTL_ACTION_OVERLAP: 11085 case CTL_ACTION_OVERLAP_TAG: 11086 case CTL_ACTION_SKIP: 11087 case CTL_ACTION_ERROR: 11088 return (action); 11089 break; /* NOTREACHED */ 11090 case CTL_ACTION_PASS: 11091 break; 11092 default: 11093 panic("%s: Invalid action %d\n", __func__, action); 11094 } 11095 } 11096 11097 return (CTL_ACTION_PASS); 11098} 11099 11100/* 11101 * Assumptions: 11102 * - An I/O has just completed, and has been removed from the per-LUN OOA 11103 * queue, so some items on the blocked queue may now be unblocked. 11104 */ 11105static int 11106ctl_check_blocked(struct ctl_lun *lun) 11107{ 11108 struct ctl_softc *softc = lun->ctl_softc; 11109 union ctl_io *cur_blocked, *next_blocked; 11110 11111 mtx_assert(&lun->lun_lock, MA_OWNED); 11112 11113 /* 11114 * Run forward from the head of the blocked queue, checking each 11115 * entry against the I/Os prior to it on the OOA queue to see if 11116 * there is still any blockage. 11117 * 11118 * We cannot use the TAILQ_FOREACH() macro, because it can't deal 11119 * with our removing a variable on it while it is traversing the 11120 * list. 11121 */ 11122 for (cur_blocked = (union ctl_io *)TAILQ_FIRST(&lun->blocked_queue); 11123 cur_blocked != NULL; cur_blocked = next_blocked) { 11124 union ctl_io *prev_ooa; 11125 ctl_action action; 11126 11127 next_blocked = (union ctl_io *)TAILQ_NEXT(&cur_blocked->io_hdr, 11128 blocked_links); 11129 11130 prev_ooa = (union ctl_io *)TAILQ_PREV(&cur_blocked->io_hdr, 11131 ctl_ooaq, ooa_links); 11132 11133 /* 11134 * If cur_blocked happens to be the first item in the OOA 11135 * queue now, prev_ooa will be NULL, and the action 11136 * returned will just be CTL_ACTION_PASS. 11137 */ 11138 action = ctl_check_ooa(lun, cur_blocked, prev_ooa); 11139 11140 switch (action) { 11141 case CTL_ACTION_BLOCK: 11142 /* Nothing to do here, still blocked */ 11143 break; 11144 case CTL_ACTION_OVERLAP: 11145 case CTL_ACTION_OVERLAP_TAG: 11146 /* 11147 * This shouldn't happen! In theory we've already 11148 * checked this command for overlap... 11149 */ 11150 break; 11151 case CTL_ACTION_PASS: 11152 case CTL_ACTION_SKIP: { 11153 const struct ctl_cmd_entry *entry; 11154 11155 /* 11156 * The skip case shouldn't happen, this transaction 11157 * should have never made it onto the blocked queue. 11158 */ 11159 /* 11160 * This I/O is no longer blocked, we can remove it 11161 * from the blocked queue. Since this is a TAILQ 11162 * (doubly linked list), we can do O(1) removals 11163 * from any place on the list. 11164 */ 11165 TAILQ_REMOVE(&lun->blocked_queue, &cur_blocked->io_hdr, 11166 blocked_links); 11167 cur_blocked->io_hdr.flags &= ~CTL_FLAG_BLOCKED; 11168 11169 if ((softc->ha_mode != CTL_HA_MODE_XFER) && 11170 (cur_blocked->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)){ 11171 /* 11172 * Need to send IO back to original side to 11173 * run 11174 */ 11175 union ctl_ha_msg msg_info; 11176 11177 cur_blocked->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 11178 msg_info.hdr.original_sc = 11179 cur_blocked->io_hdr.original_sc; 11180 msg_info.hdr.serializing_sc = cur_blocked; 11181 msg_info.hdr.msg_type = CTL_MSG_R2R; 11182 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 11183 sizeof(msg_info.hdr), M_NOWAIT); 11184 break; 11185 } 11186 entry = ctl_get_cmd_entry(&cur_blocked->scsiio, NULL); 11187 11188 /* 11189 * Check this I/O for LUN state changes that may 11190 * have happened while this command was blocked. 11191 * The LUN state may have been changed by a command 11192 * ahead of us in the queue, so we need to re-check 11193 * for any states that can be caused by SCSI 11194 * commands. 11195 */ 11196 if (ctl_scsiio_lun_check(lun, entry, 11197 &cur_blocked->scsiio) == 0) { 11198 cur_blocked->io_hdr.flags |= 11199 CTL_FLAG_IS_WAS_ON_RTR; 11200 ctl_enqueue_rtr(cur_blocked); 11201 } else 11202 ctl_done(cur_blocked); 11203 break; 11204 } 11205 default: 11206 /* 11207 * This probably shouldn't happen -- we shouldn't 11208 * get CTL_ACTION_ERROR, or anything else. 11209 */ 11210 break; 11211 } 11212 } 11213 11214 return (CTL_RETVAL_COMPLETE); 11215} 11216 11217/* 11218 * This routine (with one exception) checks LUN flags that can be set by 11219 * commands ahead of us in the OOA queue. These flags have to be checked 11220 * when a command initially comes in, and when we pull a command off the 11221 * blocked queue and are preparing to execute it. The reason we have to 11222 * check these flags for commands on the blocked queue is that the LUN 11223 * state may have been changed by a command ahead of us while we're on the 11224 * blocked queue. 11225 * 11226 * Ordering is somewhat important with these checks, so please pay 11227 * careful attention to the placement of any new checks. 11228 */ 11229static int 11230ctl_scsiio_lun_check(struct ctl_lun *lun, 11231 const struct ctl_cmd_entry *entry, struct ctl_scsiio *ctsio) 11232{ 11233 struct ctl_softc *softc = lun->ctl_softc; 11234 int retval; 11235 uint32_t residx; 11236 11237 retval = 0; 11238 11239 mtx_assert(&lun->lun_lock, MA_OWNED); 11240 11241 /* 11242 * If this shelf is a secondary shelf controller, we may have to 11243 * reject some commands disallowed by HA mode and link state. 11244 */ 11245 if ((lun->flags & CTL_LUN_PRIMARY_SC) == 0) { 11246 if (softc->ha_link == CTL_HA_LINK_OFFLINE && 11247 (entry->flags & CTL_CMD_FLAG_OK_ON_UNAVAIL) == 0) { 11248 ctl_set_lun_unavail(ctsio); 11249 retval = 1; 11250 goto bailout; 11251 } 11252 if ((lun->flags & CTL_LUN_PEER_SC_PRIMARY) == 0 && 11253 (entry->flags & CTL_CMD_FLAG_OK_ON_UNAVAIL) == 0) { 11254 ctl_set_lun_transit(ctsio); 11255 retval = 1; 11256 goto bailout; 11257 } 11258 if (softc->ha_mode == CTL_HA_MODE_ACT_STBY && 11259 (entry->flags & CTL_CMD_FLAG_OK_ON_STANDBY) == 0) { 11260 ctl_set_lun_standby(ctsio); 11261 retval = 1; 11262 goto bailout; 11263 } 11264 11265 /* The rest of checks are only done on executing side */ 11266 if (softc->ha_mode == CTL_HA_MODE_XFER) 11267 goto bailout; 11268 } 11269 11270 if (entry->pattern & CTL_LUN_PAT_WRITE) { 11271 if (lun->be_lun && 11272 lun->be_lun->flags & CTL_LUN_FLAG_READONLY) { 11273 ctl_set_hw_write_protected(ctsio); 11274 retval = 1; 11275 goto bailout; 11276 } 11277 if ((lun->MODE_CTRL.eca_and_aen & SCP_SWP) != 0) { 11278 ctl_set_sense(ctsio, /*current_error*/ 1, 11279 /*sense_key*/ SSD_KEY_DATA_PROTECT, 11280 /*asc*/ 0x27, /*ascq*/ 0x02, SSD_ELEM_NONE); 11281 retval = 1; 11282 goto bailout; 11283 } 11284 } 11285 11286 /* 11287 * Check for a reservation conflict. If this command isn't allowed 11288 * even on reserved LUNs, and if this initiator isn't the one who 11289 * reserved us, reject the command with a reservation conflict. 11290 */ 11291 residx = ctl_get_initindex(&ctsio->io_hdr.nexus); 11292 if ((lun->flags & CTL_LUN_RESERVED) 11293 && ((entry->flags & CTL_CMD_FLAG_ALLOW_ON_RESV) == 0)) { 11294 if (lun->res_idx != residx) { 11295 ctl_set_reservation_conflict(ctsio); 11296 retval = 1; 11297 goto bailout; 11298 } 11299 } 11300 11301 if ((lun->flags & CTL_LUN_PR_RESERVED) == 0 || 11302 (entry->flags & CTL_CMD_FLAG_ALLOW_ON_PR_RESV)) { 11303 /* No reservation or command is allowed. */; 11304 } else if ((entry->flags & CTL_CMD_FLAG_ALLOW_ON_PR_WRESV) && 11305 (lun->pr_res_type == SPR_TYPE_WR_EX || 11306 lun->pr_res_type == SPR_TYPE_WR_EX_RO || 11307 lun->pr_res_type == SPR_TYPE_WR_EX_AR)) { 11308 /* The command is allowed for Write Exclusive resv. */; 11309 } else { 11310 /* 11311 * if we aren't registered or it's a res holder type 11312 * reservation and this isn't the res holder then set a 11313 * conflict. 11314 */ 11315 if (ctl_get_prkey(lun, residx) == 0 || 11316 (residx != lun->pr_res_idx && lun->pr_res_type < 4)) { 11317 ctl_set_reservation_conflict(ctsio); 11318 retval = 1; 11319 goto bailout; 11320 } 11321 } 11322 11323 if ((entry->flags & CTL_CMD_FLAG_OK_ON_NO_MEDIA) == 0) { 11324 if (lun->flags & CTL_LUN_EJECTED) 11325 ctl_set_lun_ejected(ctsio); 11326 else if (lun->flags & CTL_LUN_NO_MEDIA) { 11327 if (lun->flags & CTL_LUN_REMOVABLE) 11328 ctl_set_lun_no_media(ctsio); 11329 else 11330 ctl_set_lun_int_reqd(ctsio); 11331 } else if (lun->flags & CTL_LUN_STOPPED) 11332 ctl_set_lun_stopped(ctsio); 11333 else 11334 goto bailout; 11335 retval = 1; 11336 goto bailout; 11337 } 11338 11339bailout: 11340 return (retval); 11341} 11342 11343static void 11344ctl_failover_io(union ctl_io *io, int have_lock) 11345{ 11346 ctl_set_busy(&io->scsiio); 11347 ctl_done(io); 11348} 11349 11350static void 11351ctl_failover_lun(union ctl_io *rio) 11352{ 11353 struct ctl_softc *softc = CTL_SOFTC(rio); 11354 struct ctl_lun *lun; 11355 struct ctl_io_hdr *io, *next_io; 11356 uint32_t targ_lun; 11357 11358 targ_lun = rio->io_hdr.nexus.targ_mapped_lun; 11359 CTL_DEBUG_PRINT(("FAILOVER for lun %ju\n", targ_lun)); 11360 11361 /* Find and lock the LUN. */ 11362 mtx_lock(&softc->ctl_lock); 11363 if (targ_lun > CTL_MAX_LUNS || 11364 (lun = softc->ctl_luns[targ_lun]) == NULL) { 11365 mtx_unlock(&softc->ctl_lock); 11366 return; 11367 } 11368 mtx_lock(&lun->lun_lock); 11369 mtx_unlock(&softc->ctl_lock); 11370 if (lun->flags & CTL_LUN_DISABLED) { 11371 mtx_unlock(&lun->lun_lock); 11372 return; 11373 } 11374 11375 if (softc->ha_mode == CTL_HA_MODE_XFER) { 11376 TAILQ_FOREACH_SAFE(io, &lun->ooa_queue, ooa_links, next_io) { 11377 /* We are master */ 11378 if (io->flags & CTL_FLAG_FROM_OTHER_SC) { 11379 if (io->flags & CTL_FLAG_IO_ACTIVE) { 11380 io->flags |= CTL_FLAG_ABORT; 11381 io->flags |= CTL_FLAG_FAILOVER; 11382 } else { /* This can be only due to DATAMOVE */ 11383 io->msg_type = CTL_MSG_DATAMOVE_DONE; 11384 io->flags &= ~CTL_FLAG_DMA_INPROG; 11385 io->flags |= CTL_FLAG_IO_ACTIVE; 11386 io->port_status = 31340; 11387 ctl_enqueue_isc((union ctl_io *)io); 11388 } 11389 } 11390 /* We are slave */ 11391 if (io->flags & CTL_FLAG_SENT_2OTHER_SC) { 11392 io->flags &= ~CTL_FLAG_SENT_2OTHER_SC; 11393 if (io->flags & CTL_FLAG_IO_ACTIVE) { 11394 io->flags |= CTL_FLAG_FAILOVER; 11395 } else { 11396 ctl_set_busy(&((union ctl_io *)io)-> 11397 scsiio); 11398 ctl_done((union ctl_io *)io); 11399 } 11400 } 11401 } 11402 } else { /* SERIALIZE modes */ 11403 TAILQ_FOREACH_SAFE(io, &lun->blocked_queue, blocked_links, 11404 next_io) { 11405 /* We are master */ 11406 if (io->flags & CTL_FLAG_FROM_OTHER_SC) { 11407 TAILQ_REMOVE(&lun->blocked_queue, io, 11408 blocked_links); 11409 io->flags &= ~CTL_FLAG_BLOCKED; 11410 TAILQ_REMOVE(&lun->ooa_queue, io, ooa_links); 11411 ctl_free_io((union ctl_io *)io); 11412 } 11413 } 11414 TAILQ_FOREACH_SAFE(io, &lun->ooa_queue, ooa_links, next_io) { 11415 /* We are master */ 11416 if (io->flags & CTL_FLAG_FROM_OTHER_SC) { 11417 TAILQ_REMOVE(&lun->ooa_queue, io, ooa_links); 11418 ctl_free_io((union ctl_io *)io); 11419 } 11420 /* We are slave */ 11421 if (io->flags & CTL_FLAG_SENT_2OTHER_SC) { 11422 io->flags &= ~CTL_FLAG_SENT_2OTHER_SC; 11423 if (!(io->flags & CTL_FLAG_IO_ACTIVE)) { 11424 ctl_set_busy(&((union ctl_io *)io)-> 11425 scsiio); 11426 ctl_done((union ctl_io *)io); 11427 } 11428 } 11429 } 11430 ctl_check_blocked(lun); 11431 } 11432 mtx_unlock(&lun->lun_lock); 11433} 11434 11435static int 11436ctl_scsiio_precheck(struct ctl_softc *softc, struct ctl_scsiio *ctsio) 11437{ 11438 struct ctl_lun *lun; 11439 const struct ctl_cmd_entry *entry; 11440 uint32_t initidx, targ_lun; 11441 int retval = 0; 11442 11443 lun = NULL; 11444 targ_lun = ctsio->io_hdr.nexus.targ_mapped_lun; 11445 if (targ_lun < CTL_MAX_LUNS) 11446 lun = softc->ctl_luns[targ_lun]; 11447 if (lun) { 11448 /* 11449 * If the LUN is invalid, pretend that it doesn't exist. 11450 * It will go away as soon as all pending I/O has been 11451 * completed. 11452 */ 11453 mtx_lock(&lun->lun_lock); 11454 if (lun->flags & CTL_LUN_DISABLED) { 11455 mtx_unlock(&lun->lun_lock); 11456 lun = NULL; 11457 } 11458 } 11459 CTL_LUN(ctsio) = lun; 11460 if (lun) { 11461 CTL_BACKEND_LUN(ctsio) = lun->be_lun; 11462 11463 /* 11464 * Every I/O goes into the OOA queue for a particular LUN, 11465 * and stays there until completion. 11466 */ 11467#ifdef CTL_TIME_IO 11468 if (TAILQ_EMPTY(&lun->ooa_queue)) 11469 lun->idle_time += getsbinuptime() - lun->last_busy; 11470#endif 11471 TAILQ_INSERT_TAIL(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 11472 } 11473 11474 /* Get command entry and return error if it is unsuppotyed. */ 11475 entry = ctl_validate_command(ctsio); 11476 if (entry == NULL) { 11477 if (lun) 11478 mtx_unlock(&lun->lun_lock); 11479 return (retval); 11480 } 11481 11482 ctsio->io_hdr.flags &= ~CTL_FLAG_DATA_MASK; 11483 ctsio->io_hdr.flags |= entry->flags & CTL_FLAG_DATA_MASK; 11484 11485 /* 11486 * Check to see whether we can send this command to LUNs that don't 11487 * exist. This should pretty much only be the case for inquiry 11488 * and request sense. Further checks, below, really require having 11489 * a LUN, so we can't really check the command anymore. Just put 11490 * it on the rtr queue. 11491 */ 11492 if (lun == NULL) { 11493 if (entry->flags & CTL_CMD_FLAG_OK_ON_NO_LUN) { 11494 ctsio->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 11495 ctl_enqueue_rtr((union ctl_io *)ctsio); 11496 return (retval); 11497 } 11498 11499 ctl_set_unsupported_lun(ctsio); 11500 ctl_done((union ctl_io *)ctsio); 11501 CTL_DEBUG_PRINT(("ctl_scsiio_precheck: bailing out due to invalid LUN\n")); 11502 return (retval); 11503 } else { 11504 /* 11505 * Make sure we support this particular command on this LUN. 11506 * e.g., we don't support writes to the control LUN. 11507 */ 11508 if (!ctl_cmd_applicable(lun->be_lun->lun_type, entry)) { 11509 mtx_unlock(&lun->lun_lock); 11510 ctl_set_invalid_opcode(ctsio); 11511 ctl_done((union ctl_io *)ctsio); 11512 return (retval); 11513 } 11514 } 11515 11516 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 11517 11518#ifdef CTL_WITH_CA 11519 /* 11520 * If we've got a request sense, it'll clear the contingent 11521 * allegiance condition. Otherwise, if we have a CA condition for 11522 * this initiator, clear it, because it sent down a command other 11523 * than request sense. 11524 */ 11525 if ((ctsio->cdb[0] != REQUEST_SENSE) 11526 && (ctl_is_set(lun->have_ca, initidx))) 11527 ctl_clear_mask(lun->have_ca, initidx); 11528#endif 11529 11530 /* 11531 * If the command has this flag set, it handles its own unit 11532 * attention reporting, we shouldn't do anything. Otherwise we 11533 * check for any pending unit attentions, and send them back to the 11534 * initiator. We only do this when a command initially comes in, 11535 * not when we pull it off the blocked queue. 11536 * 11537 * According to SAM-3, section 5.3.2, the order that things get 11538 * presented back to the host is basically unit attentions caused 11539 * by some sort of reset event, busy status, reservation conflicts 11540 * or task set full, and finally any other status. 11541 * 11542 * One issue here is that some of the unit attentions we report 11543 * don't fall into the "reset" category (e.g. "reported luns data 11544 * has changed"). So reporting it here, before the reservation 11545 * check, may be technically wrong. I guess the only thing to do 11546 * would be to check for and report the reset events here, and then 11547 * check for the other unit attention types after we check for a 11548 * reservation conflict. 11549 * 11550 * XXX KDM need to fix this 11551 */ 11552 if ((entry->flags & CTL_CMD_FLAG_NO_SENSE) == 0) { 11553 ctl_ua_type ua_type; 11554 u_int sense_len = 0; 11555 11556 ua_type = ctl_build_ua(lun, initidx, &ctsio->sense_data, 11557 &sense_len, SSD_TYPE_NONE); 11558 if (ua_type != CTL_UA_NONE) { 11559 mtx_unlock(&lun->lun_lock); 11560 ctsio->scsi_status = SCSI_STATUS_CHECK_COND; 11561 ctsio->io_hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 11562 ctsio->sense_len = sense_len; 11563 ctl_done((union ctl_io *)ctsio); 11564 return (retval); 11565 } 11566 } 11567 11568 11569 if (ctl_scsiio_lun_check(lun, entry, ctsio) != 0) { 11570 mtx_unlock(&lun->lun_lock); 11571 ctl_done((union ctl_io *)ctsio); 11572 return (retval); 11573 } 11574 11575 /* 11576 * XXX CHD this is where we want to send IO to other side if 11577 * this LUN is secondary on this SC. We will need to make a copy 11578 * of the IO and flag the IO on this side as SENT_2OTHER and the flag 11579 * the copy we send as FROM_OTHER. 11580 * We also need to stuff the address of the original IO so we can 11581 * find it easily. Something similar will need be done on the other 11582 * side so when we are done we can find the copy. 11583 */ 11584 if ((lun->flags & CTL_LUN_PRIMARY_SC) == 0 && 11585 (lun->flags & CTL_LUN_PEER_SC_PRIMARY) != 0 && 11586 (entry->flags & CTL_CMD_FLAG_RUN_HERE) == 0) { 11587 union ctl_ha_msg msg_info; 11588 int isc_retval; 11589 11590 ctsio->io_hdr.flags |= CTL_FLAG_SENT_2OTHER_SC; 11591 ctsio->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 11592 mtx_unlock(&lun->lun_lock); 11593 11594 msg_info.hdr.msg_type = CTL_MSG_SERIALIZE; 11595 msg_info.hdr.original_sc = (union ctl_io *)ctsio; 11596 msg_info.hdr.serializing_sc = NULL; 11597 msg_info.hdr.nexus = ctsio->io_hdr.nexus; 11598 msg_info.scsi.tag_num = ctsio->tag_num; 11599 msg_info.scsi.tag_type = ctsio->tag_type; 11600 msg_info.scsi.cdb_len = ctsio->cdb_len; 11601 memcpy(msg_info.scsi.cdb, ctsio->cdb, CTL_MAX_CDBLEN); 11602 11603 if ((isc_retval = ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 11604 sizeof(msg_info.scsi) - sizeof(msg_info.scsi.sense_data), 11605 M_WAITOK)) > CTL_HA_STATUS_SUCCESS) { 11606 ctl_set_busy(ctsio); 11607 ctl_done((union ctl_io *)ctsio); 11608 return (retval); 11609 } 11610 return (retval); 11611 } 11612 11613 switch (ctl_check_ooa(lun, (union ctl_io *)ctsio, 11614 (union ctl_io *)TAILQ_PREV(&ctsio->io_hdr, 11615 ctl_ooaq, ooa_links))) { 11616 case CTL_ACTION_BLOCK: 11617 ctsio->io_hdr.flags |= CTL_FLAG_BLOCKED; 11618 TAILQ_INSERT_TAIL(&lun->blocked_queue, &ctsio->io_hdr, 11619 blocked_links); 11620 mtx_unlock(&lun->lun_lock); 11621 return (retval); 11622 case CTL_ACTION_PASS: 11623 case CTL_ACTION_SKIP: 11624 ctsio->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 11625 mtx_unlock(&lun->lun_lock); 11626 ctl_enqueue_rtr((union ctl_io *)ctsio); 11627 break; 11628 case CTL_ACTION_OVERLAP: 11629 mtx_unlock(&lun->lun_lock); 11630 ctl_set_overlapped_cmd(ctsio); 11631 ctl_done((union ctl_io *)ctsio); 11632 break; 11633 case CTL_ACTION_OVERLAP_TAG: 11634 mtx_unlock(&lun->lun_lock); 11635 ctl_set_overlapped_tag(ctsio, ctsio->tag_num & 0xff); 11636 ctl_done((union ctl_io *)ctsio); 11637 break; 11638 case CTL_ACTION_ERROR: 11639 default: 11640 mtx_unlock(&lun->lun_lock); 11641 ctl_set_internal_failure(ctsio, 11642 /*sks_valid*/ 0, 11643 /*retry_count*/ 0); 11644 ctl_done((union ctl_io *)ctsio); 11645 break; 11646 } 11647 return (retval); 11648} 11649 11650const struct ctl_cmd_entry * 11651ctl_get_cmd_entry(struct ctl_scsiio *ctsio, int *sa) 11652{ 11653 const struct ctl_cmd_entry *entry; 11654 int service_action; 11655 11656 entry = &ctl_cmd_table[ctsio->cdb[0]]; 11657 if (sa) 11658 *sa = ((entry->flags & CTL_CMD_FLAG_SA5) != 0); 11659 if (entry->flags & CTL_CMD_FLAG_SA5) { 11660 service_action = ctsio->cdb[1] & SERVICE_ACTION_MASK; 11661 entry = &((const struct ctl_cmd_entry *) 11662 entry->execute)[service_action]; 11663 } 11664 return (entry); 11665} 11666 11667const struct ctl_cmd_entry * 11668ctl_validate_command(struct ctl_scsiio *ctsio) 11669{ 11670 const struct ctl_cmd_entry *entry; 11671 int i, sa; 11672 uint8_t diff; 11673 11674 entry = ctl_get_cmd_entry(ctsio, &sa); 11675 if (entry->execute == NULL) { 11676 if (sa) 11677 ctl_set_invalid_field(ctsio, 11678 /*sks_valid*/ 1, 11679 /*command*/ 1, 11680 /*field*/ 1, 11681 /*bit_valid*/ 1, 11682 /*bit*/ 4); 11683 else 11684 ctl_set_invalid_opcode(ctsio); 11685 ctl_done((union ctl_io *)ctsio); 11686 return (NULL); 11687 } 11688 KASSERT(entry->length > 0, 11689 ("Not defined length for command 0x%02x/0x%02x", 11690 ctsio->cdb[0], ctsio->cdb[1])); 11691 for (i = 1; i < entry->length; i++) { 11692 diff = ctsio->cdb[i] & ~entry->usage[i - 1]; 11693 if (diff == 0) 11694 continue; 11695 ctl_set_invalid_field(ctsio, 11696 /*sks_valid*/ 1, 11697 /*command*/ 1, 11698 /*field*/ i, 11699 /*bit_valid*/ 1, 11700 /*bit*/ fls(diff) - 1); 11701 ctl_done((union ctl_io *)ctsio); 11702 return (NULL); 11703 } 11704 return (entry); 11705} 11706 11707static int 11708ctl_cmd_applicable(uint8_t lun_type, const struct ctl_cmd_entry *entry) 11709{ 11710 11711 switch (lun_type) { 11712 case T_DIRECT: 11713 if ((entry->flags & CTL_CMD_FLAG_OK_ON_DIRECT) == 0) 11714 return (0); 11715 break; 11716 case T_PROCESSOR: 11717 if ((entry->flags & CTL_CMD_FLAG_OK_ON_PROC) == 0) 11718 return (0); 11719 break; 11720 case T_CDROM: 11721 if ((entry->flags & CTL_CMD_FLAG_OK_ON_CDROM) == 0) 11722 return (0); 11723 break; 11724 default: 11725 return (0); 11726 } 11727 return (1); 11728} 11729 11730static int 11731ctl_scsiio(struct ctl_scsiio *ctsio) 11732{ 11733 int retval; 11734 const struct ctl_cmd_entry *entry; 11735 11736 retval = CTL_RETVAL_COMPLETE; 11737 11738 CTL_DEBUG_PRINT(("ctl_scsiio cdb[0]=%02X\n", ctsio->cdb[0])); 11739 11740 entry = ctl_get_cmd_entry(ctsio, NULL); 11741 11742 /* 11743 * If this I/O has been aborted, just send it straight to 11744 * ctl_done() without executing it. 11745 */ 11746 if (ctsio->io_hdr.flags & CTL_FLAG_ABORT) { 11747 ctl_done((union ctl_io *)ctsio); 11748 goto bailout; 11749 } 11750 11751 /* 11752 * All the checks should have been handled by ctl_scsiio_precheck(). 11753 * We should be clear now to just execute the I/O. 11754 */ 11755 retval = entry->execute(ctsio); 11756 11757bailout: 11758 return (retval); 11759} 11760 11761/* 11762 * Since we only implement one target right now, a bus reset simply resets 11763 * our single target. 11764 */ 11765static int 11766ctl_bus_reset(struct ctl_softc *softc, union ctl_io *io) 11767{ 11768 return(ctl_target_reset(softc, io, CTL_UA_BUS_RESET)); 11769} 11770 11771static int 11772ctl_target_reset(struct ctl_softc *softc, union ctl_io *io, 11773 ctl_ua_type ua_type) 11774{ 11775 struct ctl_port *port = CTL_PORT(io); 11776 struct ctl_lun *lun; 11777 int retval; 11778 11779 if (!(io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)) { 11780 union ctl_ha_msg msg_info; 11781 11782 msg_info.hdr.nexus = io->io_hdr.nexus; 11783 if (ua_type==CTL_UA_TARG_RESET) 11784 msg_info.task.task_action = CTL_TASK_TARGET_RESET; 11785 else 11786 msg_info.task.task_action = CTL_TASK_BUS_RESET; 11787 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 11788 msg_info.hdr.original_sc = NULL; 11789 msg_info.hdr.serializing_sc = NULL; 11790 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 11791 sizeof(msg_info.task), M_WAITOK); 11792 } 11793 retval = 0; 11794 11795 mtx_lock(&softc->ctl_lock); 11796 STAILQ_FOREACH(lun, &softc->lun_list, links) { 11797 if (port != NULL && 11798 ctl_lun_map_to_port(port, lun->lun) == UINT32_MAX) 11799 continue; 11800 retval += ctl_do_lun_reset(lun, io, ua_type); 11801 } 11802 mtx_unlock(&softc->ctl_lock); 11803 io->taskio.task_status = CTL_TASK_FUNCTION_COMPLETE; 11804 return (retval); 11805} 11806 11807/* 11808 * The LUN should always be set. The I/O is optional, and is used to 11809 * distinguish between I/Os sent by this initiator, and by other 11810 * initiators. We set unit attention for initiators other than this one. 11811 * SAM-3 is vague on this point. It does say that a unit attention should 11812 * be established for other initiators when a LUN is reset (see section 11813 * 5.7.3), but it doesn't specifically say that the unit attention should 11814 * be established for this particular initiator when a LUN is reset. Here 11815 * is the relevant text, from SAM-3 rev 8: 11816 * 11817 * 5.7.2 When a SCSI initiator port aborts its own tasks 11818 * 11819 * When a SCSI initiator port causes its own task(s) to be aborted, no 11820 * notification that the task(s) have been aborted shall be returned to 11821 * the SCSI initiator port other than the completion response for the 11822 * command or task management function action that caused the task(s) to 11823 * be aborted and notification(s) associated with related effects of the 11824 * action (e.g., a reset unit attention condition). 11825 * 11826 * XXX KDM for now, we're setting unit attention for all initiators. 11827 */ 11828static int 11829ctl_do_lun_reset(struct ctl_lun *lun, union ctl_io *io, ctl_ua_type ua_type) 11830{ 11831 union ctl_io *xio; 11832#if 0 11833 uint32_t initidx; 11834#endif 11835 int i; 11836 11837 mtx_lock(&lun->lun_lock); 11838 /* 11839 * Run through the OOA queue and abort each I/O. 11840 */ 11841 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 11842 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 11843 xio->io_hdr.flags |= CTL_FLAG_ABORT | CTL_FLAG_ABORT_STATUS; 11844 } 11845 11846 /* 11847 * This version sets unit attention for every 11848 */ 11849#if 0 11850 initidx = ctl_get_initindex(&io->io_hdr.nexus); 11851 ctl_est_ua_all(lun, initidx, ua_type); 11852#else 11853 ctl_est_ua_all(lun, -1, ua_type); 11854#endif 11855 11856 /* 11857 * A reset (any kind, really) clears reservations established with 11858 * RESERVE/RELEASE. It does not clear reservations established 11859 * with PERSISTENT RESERVE OUT, but we don't support that at the 11860 * moment anyway. See SPC-2, section 5.6. SPC-3 doesn't address 11861 * reservations made with the RESERVE/RELEASE commands, because 11862 * those commands are obsolete in SPC-3. 11863 */ 11864 lun->flags &= ~CTL_LUN_RESERVED; 11865 11866#ifdef CTL_WITH_CA 11867 for (i = 0; i < CTL_MAX_INITIATORS; i++) 11868 ctl_clear_mask(lun->have_ca, i); 11869#endif 11870 lun->prevent_count = 0; 11871 if (lun->prevent) { 11872 for (i = 0; i < CTL_MAX_INITIATORS; i++) 11873 ctl_clear_mask(lun->prevent, i); 11874 } 11875 mtx_unlock(&lun->lun_lock); 11876 11877 return (0); 11878} 11879 11880static int 11881ctl_lun_reset(struct ctl_softc *softc, union ctl_io *io) 11882{ 11883 struct ctl_lun *lun; 11884 uint32_t targ_lun; 11885 int retval; 11886 11887 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 11888 mtx_lock(&softc->ctl_lock); 11889 if (targ_lun >= CTL_MAX_LUNS || 11890 (lun = softc->ctl_luns[targ_lun]) == NULL) { 11891 mtx_unlock(&softc->ctl_lock); 11892 io->taskio.task_status = CTL_TASK_LUN_DOES_NOT_EXIST; 11893 return (1); 11894 } 11895 retval = ctl_do_lun_reset(lun, io, CTL_UA_LUN_RESET); 11896 mtx_unlock(&softc->ctl_lock); 11897 io->taskio.task_status = CTL_TASK_FUNCTION_COMPLETE; 11898 11899 if ((io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) == 0) { 11900 union ctl_ha_msg msg_info; 11901 11902 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 11903 msg_info.hdr.nexus = io->io_hdr.nexus; 11904 msg_info.task.task_action = CTL_TASK_LUN_RESET; 11905 msg_info.hdr.original_sc = NULL; 11906 msg_info.hdr.serializing_sc = NULL; 11907 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 11908 sizeof(msg_info.task), M_WAITOK); 11909 } 11910 return (retval); 11911} 11912 11913static void 11914ctl_abort_tasks_lun(struct ctl_lun *lun, uint32_t targ_port, uint32_t init_id, 11915 int other_sc) 11916{ 11917 union ctl_io *xio; 11918 11919 mtx_assert(&lun->lun_lock, MA_OWNED); 11920 11921 /* 11922 * Run through the OOA queue and attempt to find the given I/O. 11923 * The target port, initiator ID, tag type and tag number have to 11924 * match the values that we got from the initiator. If we have an 11925 * untagged command to abort, simply abort the first untagged command 11926 * we come to. We only allow one untagged command at a time of course. 11927 */ 11928 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 11929 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 11930 11931 if ((targ_port == UINT32_MAX || 11932 targ_port == xio->io_hdr.nexus.targ_port) && 11933 (init_id == UINT32_MAX || 11934 init_id == xio->io_hdr.nexus.initid)) { 11935 if (targ_port != xio->io_hdr.nexus.targ_port || 11936 init_id != xio->io_hdr.nexus.initid) 11937 xio->io_hdr.flags |= CTL_FLAG_ABORT_STATUS; 11938 xio->io_hdr.flags |= CTL_FLAG_ABORT; 11939 if (!other_sc && !(lun->flags & CTL_LUN_PRIMARY_SC)) { 11940 union ctl_ha_msg msg_info; 11941 11942 msg_info.hdr.nexus = xio->io_hdr.nexus; 11943 msg_info.task.task_action = CTL_TASK_ABORT_TASK; 11944 msg_info.task.tag_num = xio->scsiio.tag_num; 11945 msg_info.task.tag_type = xio->scsiio.tag_type; 11946 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 11947 msg_info.hdr.original_sc = NULL; 11948 msg_info.hdr.serializing_sc = NULL; 11949 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 11950 sizeof(msg_info.task), M_NOWAIT); 11951 } 11952 } 11953 } 11954} 11955 11956static int 11957ctl_abort_task_set(union ctl_io *io) 11958{ 11959 struct ctl_softc *softc = CTL_SOFTC(io); 11960 struct ctl_lun *lun; 11961 uint32_t targ_lun; 11962 11963 /* 11964 * Look up the LUN. 11965 */ 11966 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 11967 mtx_lock(&softc->ctl_lock); 11968 if (targ_lun >= CTL_MAX_LUNS || 11969 (lun = softc->ctl_luns[targ_lun]) == NULL) { 11970 mtx_unlock(&softc->ctl_lock); 11971 io->taskio.task_status = CTL_TASK_LUN_DOES_NOT_EXIST; 11972 return (1); 11973 } 11974 11975 mtx_lock(&lun->lun_lock); 11976 mtx_unlock(&softc->ctl_lock); 11977 if (io->taskio.task_action == CTL_TASK_ABORT_TASK_SET) { 11978 ctl_abort_tasks_lun(lun, io->io_hdr.nexus.targ_port, 11979 io->io_hdr.nexus.initid, 11980 (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) != 0); 11981 } else { /* CTL_TASK_CLEAR_TASK_SET */ 11982 ctl_abort_tasks_lun(lun, UINT32_MAX, UINT32_MAX, 11983 (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) != 0); 11984 } 11985 mtx_unlock(&lun->lun_lock); 11986 io->taskio.task_status = CTL_TASK_FUNCTION_COMPLETE; 11987 return (0); 11988} 11989 11990static int 11991ctl_i_t_nexus_reset(union ctl_io *io) 11992{ 11993 struct ctl_softc *softc = CTL_SOFTC(io); 11994 struct ctl_lun *lun; 11995 uint32_t initidx; 11996 11997 if (!(io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)) { 11998 union ctl_ha_msg msg_info; 11999 12000 msg_info.hdr.nexus = io->io_hdr.nexus; 12001 msg_info.task.task_action = CTL_TASK_I_T_NEXUS_RESET; 12002 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 12003 msg_info.hdr.original_sc = NULL; 12004 msg_info.hdr.serializing_sc = NULL; 12005 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 12006 sizeof(msg_info.task), M_WAITOK); 12007 } 12008 12009 initidx = ctl_get_initindex(&io->io_hdr.nexus); 12010 mtx_lock(&softc->ctl_lock); 12011 STAILQ_FOREACH(lun, &softc->lun_list, links) { 12012 mtx_lock(&lun->lun_lock); 12013 ctl_abort_tasks_lun(lun, io->io_hdr.nexus.targ_port, 12014 io->io_hdr.nexus.initid, 1); 12015#ifdef CTL_WITH_CA 12016 ctl_clear_mask(lun->have_ca, initidx); 12017#endif 12018 if ((lun->flags & CTL_LUN_RESERVED) && (lun->res_idx == initidx)) 12019 lun->flags &= ~CTL_LUN_RESERVED; 12020 if (lun->prevent && ctl_is_set(lun->prevent, initidx)) { 12021 ctl_clear_mask(lun->prevent, initidx); 12022 lun->prevent_count--; 12023 } 12024 ctl_est_ua(lun, initidx, CTL_UA_I_T_NEXUS_LOSS); 12025 mtx_unlock(&lun->lun_lock); 12026 } 12027 mtx_unlock(&softc->ctl_lock); 12028 io->taskio.task_status = CTL_TASK_FUNCTION_COMPLETE; 12029 return (0); 12030} 12031 12032static int 12033ctl_abort_task(union ctl_io *io) 12034{ 12035 struct ctl_softc *softc = CTL_SOFTC(io); 12036 union ctl_io *xio; 12037 struct ctl_lun *lun; 12038#if 0 12039 struct sbuf sb; 12040 char printbuf[128]; 12041#endif 12042 int found; 12043 uint32_t targ_lun; 12044 12045 found = 0; 12046 12047 /* 12048 * Look up the LUN. 12049 */ 12050 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12051 mtx_lock(&softc->ctl_lock); 12052 if (targ_lun >= CTL_MAX_LUNS || 12053 (lun = softc->ctl_luns[targ_lun]) == NULL) { 12054 mtx_unlock(&softc->ctl_lock); 12055 io->taskio.task_status = CTL_TASK_LUN_DOES_NOT_EXIST; 12056 return (1); 12057 } 12058 12059#if 0 12060 printf("ctl_abort_task: called for lun %lld, tag %d type %d\n", 12061 lun->lun, io->taskio.tag_num, io->taskio.tag_type); 12062#endif 12063 12064 mtx_lock(&lun->lun_lock); 12065 mtx_unlock(&softc->ctl_lock); 12066 /* 12067 * Run through the OOA queue and attempt to find the given I/O. 12068 * The target port, initiator ID, tag type and tag number have to 12069 * match the values that we got from the initiator. If we have an 12070 * untagged command to abort, simply abort the first untagged command 12071 * we come to. We only allow one untagged command at a time of course. 12072 */ 12073 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 12074 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 12075#if 0 12076 sbuf_new(&sb, printbuf, sizeof(printbuf), SBUF_FIXEDLEN); 12077 12078 sbuf_printf(&sb, "LUN %lld tag %d type %d%s%s%s%s: ", 12079 lun->lun, xio->scsiio.tag_num, 12080 xio->scsiio.tag_type, 12081 (xio->io_hdr.blocked_links.tqe_prev 12082 == NULL) ? "" : " BLOCKED", 12083 (xio->io_hdr.flags & 12084 CTL_FLAG_DMA_INPROG) ? " DMA" : "", 12085 (xio->io_hdr.flags & 12086 CTL_FLAG_ABORT) ? " ABORT" : "", 12087 (xio->io_hdr.flags & 12088 CTL_FLAG_IS_WAS_ON_RTR ? " RTR" : "")); 12089 ctl_scsi_command_string(&xio->scsiio, NULL, &sb); 12090 sbuf_finish(&sb); 12091 printf("%s\n", sbuf_data(&sb)); 12092#endif 12093 12094 if ((xio->io_hdr.nexus.targ_port != io->io_hdr.nexus.targ_port) 12095 || (xio->io_hdr.nexus.initid != io->io_hdr.nexus.initid) 12096 || (xio->io_hdr.flags & CTL_FLAG_ABORT)) 12097 continue; 12098 12099 /* 12100 * If the abort says that the task is untagged, the 12101 * task in the queue must be untagged. Otherwise, 12102 * we just check to see whether the tag numbers 12103 * match. This is because the QLogic firmware 12104 * doesn't pass back the tag type in an abort 12105 * request. 12106 */ 12107#if 0 12108 if (((xio->scsiio.tag_type == CTL_TAG_UNTAGGED) 12109 && (io->taskio.tag_type == CTL_TAG_UNTAGGED)) 12110 || (xio->scsiio.tag_num == io->taskio.tag_num)) 12111#endif 12112 /* 12113 * XXX KDM we've got problems with FC, because it 12114 * doesn't send down a tag type with aborts. So we 12115 * can only really go by the tag number... 12116 * This may cause problems with parallel SCSI. 12117 * Need to figure that out!! 12118 */ 12119 if (xio->scsiio.tag_num == io->taskio.tag_num) { 12120 xio->io_hdr.flags |= CTL_FLAG_ABORT; 12121 found = 1; 12122 if ((io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) == 0 && 12123 !(lun->flags & CTL_LUN_PRIMARY_SC)) { 12124 union ctl_ha_msg msg_info; 12125 12126 msg_info.hdr.nexus = io->io_hdr.nexus; 12127 msg_info.task.task_action = CTL_TASK_ABORT_TASK; 12128 msg_info.task.tag_num = io->taskio.tag_num; 12129 msg_info.task.tag_type = io->taskio.tag_type; 12130 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 12131 msg_info.hdr.original_sc = NULL; 12132 msg_info.hdr.serializing_sc = NULL; 12133#if 0 12134 printf("Sent Abort to other side\n"); 12135#endif 12136 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 12137 sizeof(msg_info.task), M_NOWAIT); 12138 } 12139#if 0 12140 printf("ctl_abort_task: found I/O to abort\n"); 12141#endif 12142 } 12143 } 12144 mtx_unlock(&lun->lun_lock); 12145 12146 if (found == 0) { 12147 /* 12148 * This isn't really an error. It's entirely possible for 12149 * the abort and command completion to cross on the wire. 12150 * This is more of an informative/diagnostic error. 12151 */ 12152#if 0 12153 printf("ctl_abort_task: ABORT sent for nonexistent I/O: " 12154 "%u:%u:%u tag %d type %d\n", 12155 io->io_hdr.nexus.initid, 12156 io->io_hdr.nexus.targ_port, 12157 io->io_hdr.nexus.targ_lun, io->taskio.tag_num, 12158 io->taskio.tag_type); 12159#endif 12160 } 12161 io->taskio.task_status = CTL_TASK_FUNCTION_COMPLETE; 12162 return (0); 12163} 12164 12165static int 12166ctl_query_task(union ctl_io *io, int task_set) 12167{ 12168 struct ctl_softc *softc = CTL_SOFTC(io); 12169 union ctl_io *xio; 12170 struct ctl_lun *lun; 12171 int found = 0; 12172 uint32_t targ_lun; 12173 12174 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12175 mtx_lock(&softc->ctl_lock); 12176 if (targ_lun >= CTL_MAX_LUNS || 12177 (lun = softc->ctl_luns[targ_lun]) == NULL) { 12178 mtx_unlock(&softc->ctl_lock); 12179 io->taskio.task_status = CTL_TASK_LUN_DOES_NOT_EXIST; 12180 return (1); 12181 } 12182 mtx_lock(&lun->lun_lock); 12183 mtx_unlock(&softc->ctl_lock); 12184 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 12185 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 12186 12187 if ((xio->io_hdr.nexus.targ_port != io->io_hdr.nexus.targ_port) 12188 || (xio->io_hdr.nexus.initid != io->io_hdr.nexus.initid) 12189 || (xio->io_hdr.flags & CTL_FLAG_ABORT)) 12190 continue; 12191 12192 if (task_set || xio->scsiio.tag_num == io->taskio.tag_num) { 12193 found = 1; 12194 break; 12195 } 12196 } 12197 mtx_unlock(&lun->lun_lock); 12198 if (found) 12199 io->taskio.task_status = CTL_TASK_FUNCTION_SUCCEEDED; 12200 else 12201 io->taskio.task_status = CTL_TASK_FUNCTION_COMPLETE; 12202 return (0); 12203} 12204 12205static int 12206ctl_query_async_event(union ctl_io *io) 12207{ 12208 struct ctl_softc *softc = CTL_SOFTC(io); 12209 struct ctl_lun *lun; 12210 ctl_ua_type ua; 12211 uint32_t targ_lun, initidx; 12212 12213 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12214 mtx_lock(&softc->ctl_lock); 12215 if (targ_lun >= CTL_MAX_LUNS || 12216 (lun = softc->ctl_luns[targ_lun]) == NULL) { 12217 mtx_unlock(&softc->ctl_lock); 12218 io->taskio.task_status = CTL_TASK_LUN_DOES_NOT_EXIST; 12219 return (1); 12220 } 12221 mtx_lock(&lun->lun_lock); 12222 mtx_unlock(&softc->ctl_lock); 12223 initidx = ctl_get_initindex(&io->io_hdr.nexus); 12224 ua = ctl_build_qae(lun, initidx, io->taskio.task_resp); 12225 mtx_unlock(&lun->lun_lock); 12226 if (ua != CTL_UA_NONE) 12227 io->taskio.task_status = CTL_TASK_FUNCTION_SUCCEEDED; 12228 else 12229 io->taskio.task_status = CTL_TASK_FUNCTION_COMPLETE; 12230 return (0); 12231} 12232 12233static void 12234ctl_run_task(union ctl_io *io) 12235{ 12236 struct ctl_softc *softc = CTL_SOFTC(io); 12237 int retval = 1; 12238 12239 CTL_DEBUG_PRINT(("ctl_run_task\n")); 12240 KASSERT(io->io_hdr.io_type == CTL_IO_TASK, 12241 ("ctl_run_task: Unextected io_type %d\n", io->io_hdr.io_type)); 12242 io->taskio.task_status = CTL_TASK_FUNCTION_NOT_SUPPORTED; 12243 bzero(io->taskio.task_resp, sizeof(io->taskio.task_resp)); 12244 switch (io->taskio.task_action) { 12245 case CTL_TASK_ABORT_TASK: 12246 retval = ctl_abort_task(io); 12247 break; 12248 case CTL_TASK_ABORT_TASK_SET: 12249 case CTL_TASK_CLEAR_TASK_SET: 12250 retval = ctl_abort_task_set(io); 12251 break; 12252 case CTL_TASK_CLEAR_ACA: 12253 break; 12254 case CTL_TASK_I_T_NEXUS_RESET: 12255 retval = ctl_i_t_nexus_reset(io); 12256 break; 12257 case CTL_TASK_LUN_RESET: 12258 retval = ctl_lun_reset(softc, io); 12259 break; 12260 case CTL_TASK_TARGET_RESET: 12261 retval = ctl_target_reset(softc, io, CTL_UA_TARG_RESET); 12262 break; 12263 case CTL_TASK_BUS_RESET: 12264 retval = ctl_bus_reset(softc, io); 12265 break; 12266 case CTL_TASK_PORT_LOGIN: 12267 break; 12268 case CTL_TASK_PORT_LOGOUT: 12269 break; 12270 case CTL_TASK_QUERY_TASK: 12271 retval = ctl_query_task(io, 0); 12272 break; 12273 case CTL_TASK_QUERY_TASK_SET: 12274 retval = ctl_query_task(io, 1); 12275 break; 12276 case CTL_TASK_QUERY_ASYNC_EVENT: 12277 retval = ctl_query_async_event(io); 12278 break; 12279 default: 12280 printf("%s: got unknown task management event %d\n", 12281 __func__, io->taskio.task_action); 12282 break; 12283 } 12284 if (retval == 0) 12285 io->io_hdr.status = CTL_SUCCESS; 12286 else 12287 io->io_hdr.status = CTL_ERROR; 12288 ctl_done(io); 12289} 12290 12291/* 12292 * For HA operation. Handle commands that come in from the other 12293 * controller. 12294 */ 12295static void 12296ctl_handle_isc(union ctl_io *io) 12297{ 12298 struct ctl_softc *softc = CTL_SOFTC(io); 12299 struct ctl_lun *lun; 12300 const struct ctl_cmd_entry *entry; 12301 uint32_t targ_lun; 12302 12303 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12304 switch (io->io_hdr.msg_type) { 12305 case CTL_MSG_SERIALIZE: 12306 ctl_serialize_other_sc_cmd(&io->scsiio); 12307 break; 12308 case CTL_MSG_R2R: /* Only used in SER_ONLY mode. */ 12309 entry = ctl_get_cmd_entry(&io->scsiio, NULL); 12310 if (targ_lun >= CTL_MAX_LUNS || 12311 (lun = softc->ctl_luns[targ_lun]) == NULL) { 12312 ctl_done(io); 12313 break; 12314 } 12315 mtx_lock(&lun->lun_lock); 12316 if (ctl_scsiio_lun_check(lun, entry, &io->scsiio) != 0) { 12317 mtx_unlock(&lun->lun_lock); 12318 ctl_done(io); 12319 break; 12320 } 12321 io->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 12322 mtx_unlock(&lun->lun_lock); 12323 ctl_enqueue_rtr(io); 12324 break; 12325 case CTL_MSG_FINISH_IO: 12326 if (softc->ha_mode == CTL_HA_MODE_XFER) { 12327 ctl_done(io); 12328 break; 12329 } 12330 if (targ_lun >= CTL_MAX_LUNS || 12331 (lun = softc->ctl_luns[targ_lun]) == NULL) { 12332 ctl_free_io(io); 12333 break; 12334 } 12335 mtx_lock(&lun->lun_lock); 12336 TAILQ_REMOVE(&lun->ooa_queue, &io->io_hdr, ooa_links); 12337 ctl_check_blocked(lun); 12338 mtx_unlock(&lun->lun_lock); 12339 ctl_free_io(io); 12340 break; 12341 case CTL_MSG_PERS_ACTION: 12342 ctl_hndl_per_res_out_on_other_sc(io); 12343 ctl_free_io(io); 12344 break; 12345 case CTL_MSG_BAD_JUJU: 12346 ctl_done(io); 12347 break; 12348 case CTL_MSG_DATAMOVE: /* Only used in XFER mode */ 12349 ctl_datamove_remote(io); 12350 break; 12351 case CTL_MSG_DATAMOVE_DONE: /* Only used in XFER mode */ 12352 io->scsiio.be_move_done(io); 12353 break; 12354 case CTL_MSG_FAILOVER: 12355 ctl_failover_lun(io); 12356 ctl_free_io(io); 12357 break; 12358 default: 12359 printf("%s: Invalid message type %d\n", 12360 __func__, io->io_hdr.msg_type); 12361 ctl_free_io(io); 12362 break; 12363 } 12364 12365} 12366 12367 12368/* 12369 * Returns the match type in the case of a match, or CTL_LUN_PAT_NONE if 12370 * there is no match. 12371 */ 12372static ctl_lun_error_pattern 12373ctl_cmd_pattern_match(struct ctl_scsiio *ctsio, struct ctl_error_desc *desc) 12374{ 12375 const struct ctl_cmd_entry *entry; 12376 ctl_lun_error_pattern filtered_pattern, pattern; 12377 12378 pattern = desc->error_pattern; 12379 12380 /* 12381 * XXX KDM we need more data passed into this function to match a 12382 * custom pattern, and we actually need to implement custom pattern 12383 * matching. 12384 */ 12385 if (pattern & CTL_LUN_PAT_CMD) 12386 return (CTL_LUN_PAT_CMD); 12387 12388 if ((pattern & CTL_LUN_PAT_MASK) == CTL_LUN_PAT_ANY) 12389 return (CTL_LUN_PAT_ANY); 12390 12391 entry = ctl_get_cmd_entry(ctsio, NULL); 12392 12393 filtered_pattern = entry->pattern & pattern; 12394 12395 /* 12396 * If the user requested specific flags in the pattern (e.g. 12397 * CTL_LUN_PAT_RANGE), make sure the command supports all of those 12398 * flags. 12399 * 12400 * If the user did not specify any flags, it doesn't matter whether 12401 * or not the command supports the flags. 12402 */ 12403 if ((filtered_pattern & ~CTL_LUN_PAT_MASK) != 12404 (pattern & ~CTL_LUN_PAT_MASK)) 12405 return (CTL_LUN_PAT_NONE); 12406 12407 /* 12408 * If the user asked for a range check, see if the requested LBA 12409 * range overlaps with this command's LBA range. 12410 */ 12411 if (filtered_pattern & CTL_LUN_PAT_RANGE) { 12412 uint64_t lba1; 12413 uint64_t len1; 12414 ctl_action action; 12415 int retval; 12416 12417 retval = ctl_get_lba_len((union ctl_io *)ctsio, &lba1, &len1); 12418 if (retval != 0) 12419 return (CTL_LUN_PAT_NONE); 12420 12421 action = ctl_extent_check_lba(lba1, len1, desc->lba_range.lba, 12422 desc->lba_range.len, FALSE); 12423 /* 12424 * A "pass" means that the LBA ranges don't overlap, so 12425 * this doesn't match the user's range criteria. 12426 */ 12427 if (action == CTL_ACTION_PASS) 12428 return (CTL_LUN_PAT_NONE); 12429 } 12430 12431 return (filtered_pattern); 12432} 12433 12434static void 12435ctl_inject_error(struct ctl_lun *lun, union ctl_io *io) 12436{ 12437 struct ctl_error_desc *desc, *desc2; 12438 12439 mtx_assert(&lun->lun_lock, MA_OWNED); 12440 12441 STAILQ_FOREACH_SAFE(desc, &lun->error_list, links, desc2) { 12442 ctl_lun_error_pattern pattern; 12443 /* 12444 * Check to see whether this particular command matches 12445 * the pattern in the descriptor. 12446 */ 12447 pattern = ctl_cmd_pattern_match(&io->scsiio, desc); 12448 if ((pattern & CTL_LUN_PAT_MASK) == CTL_LUN_PAT_NONE) 12449 continue; 12450 12451 switch (desc->lun_error & CTL_LUN_INJ_TYPE) { 12452 case CTL_LUN_INJ_ABORTED: 12453 ctl_set_aborted(&io->scsiio); 12454 break; 12455 case CTL_LUN_INJ_MEDIUM_ERR: 12456 ctl_set_medium_error(&io->scsiio, 12457 (io->io_hdr.flags & CTL_FLAG_DATA_MASK) != 12458 CTL_FLAG_DATA_OUT); 12459 break; 12460 case CTL_LUN_INJ_UA: 12461 /* 29h/00h POWER ON, RESET, OR BUS DEVICE RESET 12462 * OCCURRED */ 12463 ctl_set_ua(&io->scsiio, 0x29, 0x00); 12464 break; 12465 case CTL_LUN_INJ_CUSTOM: 12466 /* 12467 * We're assuming the user knows what he is doing. 12468 * Just copy the sense information without doing 12469 * checks. 12470 */ 12471 bcopy(&desc->custom_sense, &io->scsiio.sense_data, 12472 MIN(sizeof(desc->custom_sense), 12473 sizeof(io->scsiio.sense_data))); 12474 io->scsiio.scsi_status = SCSI_STATUS_CHECK_COND; 12475 io->scsiio.sense_len = SSD_FULL_SIZE; 12476 io->io_hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 12477 break; 12478 case CTL_LUN_INJ_NONE: 12479 default: 12480 /* 12481 * If this is an error injection type we don't know 12482 * about, clear the continuous flag (if it is set) 12483 * so it will get deleted below. 12484 */ 12485 desc->lun_error &= ~CTL_LUN_INJ_CONTINUOUS; 12486 break; 12487 } 12488 /* 12489 * By default, each error injection action is a one-shot 12490 */ 12491 if (desc->lun_error & CTL_LUN_INJ_CONTINUOUS) 12492 continue; 12493 12494 STAILQ_REMOVE(&lun->error_list, desc, ctl_error_desc, links); 12495 12496 free(desc, M_CTL); 12497 } 12498} 12499 12500#ifdef CTL_IO_DELAY 12501static void 12502ctl_datamove_timer_wakeup(void *arg) 12503{ 12504 union ctl_io *io; 12505 12506 io = (union ctl_io *)arg; 12507 12508 ctl_datamove(io); 12509} 12510#endif /* CTL_IO_DELAY */ 12511 12512void 12513ctl_datamove(union ctl_io *io) 12514{ 12515 void (*fe_datamove)(union ctl_io *io); 12516 12517 mtx_assert(&((struct ctl_softc *)CTL_SOFTC(io))->ctl_lock, MA_NOTOWNED); 12518 12519 CTL_DEBUG_PRINT(("ctl_datamove\n")); 12520 12521#ifdef CTL_TIME_IO 12522 if ((time_uptime - io->io_hdr.start_time) > ctl_time_io_secs) { 12523 char str[256]; 12524 char path_str[64]; 12525 struct sbuf sb; 12526 12527 ctl_scsi_path_string(io, path_str, sizeof(path_str)); 12528 sbuf_new(&sb, str, sizeof(str), SBUF_FIXEDLEN); 12529 12530 sbuf_cat(&sb, path_str); 12531 switch (io->io_hdr.io_type) { 12532 case CTL_IO_SCSI: 12533 ctl_scsi_command_string(&io->scsiio, NULL, &sb); 12534 sbuf_printf(&sb, "\n"); 12535 sbuf_cat(&sb, path_str); 12536 sbuf_printf(&sb, "Tag: 0x%04x, type %d\n", 12537 io->scsiio.tag_num, io->scsiio.tag_type); 12538 break; 12539 case CTL_IO_TASK: 12540 sbuf_printf(&sb, "Task I/O type: %d, Tag: 0x%04x, " 12541 "Tag Type: %d\n", io->taskio.task_action, 12542 io->taskio.tag_num, io->taskio.tag_type); 12543 break; 12544 default: 12545 panic("%s: Invalid CTL I/O type %d\n", 12546 __func__, io->io_hdr.io_type); 12547 } 12548 sbuf_cat(&sb, path_str); 12549 sbuf_printf(&sb, "ctl_datamove: %jd seconds\n", 12550 (intmax_t)time_uptime - io->io_hdr.start_time); 12551 sbuf_finish(&sb); 12552 printf("%s", sbuf_data(&sb)); 12553 } 12554#endif /* CTL_TIME_IO */ 12555 12556#ifdef CTL_IO_DELAY 12557 if (io->io_hdr.flags & CTL_FLAG_DELAY_DONE) { 12558 io->io_hdr.flags &= ~CTL_FLAG_DELAY_DONE; 12559 } else { 12560 if ((lun != NULL) 12561 && (lun->delay_info.datamove_delay > 0)) { 12562 12563 callout_init(&io->io_hdr.delay_callout, /*mpsafe*/ 1); 12564 io->io_hdr.flags |= CTL_FLAG_DELAY_DONE; 12565 callout_reset(&io->io_hdr.delay_callout, 12566 lun->delay_info.datamove_delay * hz, 12567 ctl_datamove_timer_wakeup, io); 12568 if (lun->delay_info.datamove_type == 12569 CTL_DELAY_TYPE_ONESHOT) 12570 lun->delay_info.datamove_delay = 0; 12571 return; 12572 } 12573 } 12574#endif 12575 12576 /* 12577 * This command has been aborted. Set the port status, so we fail 12578 * the data move. 12579 */ 12580 if (io->io_hdr.flags & CTL_FLAG_ABORT) { 12581 printf("ctl_datamove: tag 0x%04x on (%u:%u:%u) aborted\n", 12582 io->scsiio.tag_num, io->io_hdr.nexus.initid, 12583 io->io_hdr.nexus.targ_port, 12584 io->io_hdr.nexus.targ_lun); 12585 io->io_hdr.port_status = 31337; 12586 /* 12587 * Note that the backend, in this case, will get the 12588 * callback in its context. In other cases it may get 12589 * called in the frontend's interrupt thread context. 12590 */ 12591 io->scsiio.be_move_done(io); 12592 return; 12593 } 12594 12595 /* Don't confuse frontend with zero length data move. */ 12596 if (io->scsiio.kern_data_len == 0) { 12597 io->scsiio.be_move_done(io); 12598 return; 12599 } 12600 12601 fe_datamove = CTL_PORT(io)->fe_datamove; 12602 fe_datamove(io); 12603} 12604 12605static void 12606ctl_send_datamove_done(union ctl_io *io, int have_lock) 12607{ 12608 union ctl_ha_msg msg; 12609#ifdef CTL_TIME_IO 12610 struct bintime cur_bt; 12611#endif 12612 12613 memset(&msg, 0, sizeof(msg)); 12614 msg.hdr.msg_type = CTL_MSG_DATAMOVE_DONE; 12615 msg.hdr.original_sc = io; 12616 msg.hdr.serializing_sc = io->io_hdr.serializing_sc; 12617 msg.hdr.nexus = io->io_hdr.nexus; 12618 msg.hdr.status = io->io_hdr.status; 12619 msg.scsi.tag_num = io->scsiio.tag_num; 12620 msg.scsi.tag_type = io->scsiio.tag_type; 12621 msg.scsi.scsi_status = io->scsiio.scsi_status; 12622 memcpy(&msg.scsi.sense_data, &io->scsiio.sense_data, 12623 io->scsiio.sense_len); 12624 msg.scsi.sense_len = io->scsiio.sense_len; 12625 msg.scsi.sense_residual = io->scsiio.sense_residual; 12626 msg.scsi.fetd_status = io->io_hdr.port_status; 12627 msg.scsi.residual = io->scsiio.residual; 12628 io->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 12629 if (io->io_hdr.flags & CTL_FLAG_FAILOVER) { 12630 ctl_failover_io(io, /*have_lock*/ have_lock); 12631 return; 12632 } 12633 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, 12634 sizeof(msg.scsi) - sizeof(msg.scsi.sense_data) + 12635 msg.scsi.sense_len, M_WAITOK); 12636 12637#ifdef CTL_TIME_IO 12638 getbinuptime(&cur_bt); 12639 bintime_sub(&cur_bt, &io->io_hdr.dma_start_bt); 12640 bintime_add(&io->io_hdr.dma_bt, &cur_bt); 12641#endif 12642 io->io_hdr.num_dmas++; 12643} 12644 12645/* 12646 * The DMA to the remote side is done, now we need to tell the other side 12647 * we're done so it can continue with its data movement. 12648 */ 12649static void 12650ctl_datamove_remote_write_cb(struct ctl_ha_dt_req *rq) 12651{ 12652 union ctl_io *io; 12653 uint32_t i; 12654 12655 io = rq->context; 12656 12657 if (rq->ret != CTL_HA_STATUS_SUCCESS) { 12658 printf("%s: ISC DMA write failed with error %d", __func__, 12659 rq->ret); 12660 ctl_set_internal_failure(&io->scsiio, 12661 /*sks_valid*/ 1, 12662 /*retry_count*/ rq->ret); 12663 } 12664 12665 ctl_dt_req_free(rq); 12666 12667 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 12668 free(io->io_hdr.local_sglist[i].addr, M_CTL); 12669 free(io->io_hdr.remote_sglist, M_CTL); 12670 io->io_hdr.remote_sglist = NULL; 12671 io->io_hdr.local_sglist = NULL; 12672 12673 /* 12674 * The data is in local and remote memory, so now we need to send 12675 * status (good or back) back to the other side. 12676 */ 12677 ctl_send_datamove_done(io, /*have_lock*/ 0); 12678} 12679 12680/* 12681 * We've moved the data from the host/controller into local memory. Now we 12682 * need to push it over to the remote controller's memory. 12683 */ 12684static int 12685ctl_datamove_remote_dm_write_cb(union ctl_io *io) 12686{ 12687 int retval; 12688 12689 retval = ctl_datamove_remote_xfer(io, CTL_HA_DT_CMD_WRITE, 12690 ctl_datamove_remote_write_cb); 12691 return (retval); 12692} 12693 12694static void 12695ctl_datamove_remote_write(union ctl_io *io) 12696{ 12697 int retval; 12698 void (*fe_datamove)(union ctl_io *io); 12699 12700 /* 12701 * - Get the data from the host/HBA into local memory. 12702 * - DMA memory from the local controller to the remote controller. 12703 * - Send status back to the remote controller. 12704 */ 12705 12706 retval = ctl_datamove_remote_sgl_setup(io); 12707 if (retval != 0) 12708 return; 12709 12710 /* Switch the pointer over so the FETD knows what to do */ 12711 io->scsiio.kern_data_ptr = (uint8_t *)io->io_hdr.local_sglist; 12712 12713 /* 12714 * Use a custom move done callback, since we need to send completion 12715 * back to the other controller, not to the backend on this side. 12716 */ 12717 io->scsiio.be_move_done = ctl_datamove_remote_dm_write_cb; 12718 12719 fe_datamove = CTL_PORT(io)->fe_datamove; 12720 fe_datamove(io); 12721} 12722 12723static int 12724ctl_datamove_remote_dm_read_cb(union ctl_io *io) 12725{ 12726#if 0 12727 char str[256]; 12728 char path_str[64]; 12729 struct sbuf sb; 12730#endif 12731 uint32_t i; 12732 12733 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 12734 free(io->io_hdr.local_sglist[i].addr, M_CTL); 12735 free(io->io_hdr.remote_sglist, M_CTL); 12736 io->io_hdr.remote_sglist = NULL; 12737 io->io_hdr.local_sglist = NULL; 12738 12739#if 0 12740 scsi_path_string(io, path_str, sizeof(path_str)); 12741 sbuf_new(&sb, str, sizeof(str), SBUF_FIXEDLEN); 12742 sbuf_cat(&sb, path_str); 12743 scsi_command_string(&io->scsiio, NULL, &sb); 12744 sbuf_printf(&sb, "\n"); 12745 sbuf_cat(&sb, path_str); 12746 sbuf_printf(&sb, "Tag: 0x%04x, type %d\n", 12747 io->scsiio.tag_num, io->scsiio.tag_type); 12748 sbuf_cat(&sb, path_str); 12749 sbuf_printf(&sb, "%s: flags %#x, status %#x\n", __func__, 12750 io->io_hdr.flags, io->io_hdr.status); 12751 sbuf_finish(&sb); 12752 printk("%s", sbuf_data(&sb)); 12753#endif 12754 12755 12756 /* 12757 * The read is done, now we need to send status (good or bad) back 12758 * to the other side. 12759 */ 12760 ctl_send_datamove_done(io, /*have_lock*/ 0); 12761 12762 return (0); 12763} 12764 12765static void 12766ctl_datamove_remote_read_cb(struct ctl_ha_dt_req *rq) 12767{ 12768 union ctl_io *io; 12769 void (*fe_datamove)(union ctl_io *io); 12770 12771 io = rq->context; 12772 12773 if (rq->ret != CTL_HA_STATUS_SUCCESS) { 12774 printf("%s: ISC DMA read failed with error %d\n", __func__, 12775 rq->ret); 12776 ctl_set_internal_failure(&io->scsiio, 12777 /*sks_valid*/ 1, 12778 /*retry_count*/ rq->ret); 12779 } 12780 12781 ctl_dt_req_free(rq); 12782 12783 /* Switch the pointer over so the FETD knows what to do */ 12784 io->scsiio.kern_data_ptr = (uint8_t *)io->io_hdr.local_sglist; 12785 12786 /* 12787 * Use a custom move done callback, since we need to send completion 12788 * back to the other controller, not to the backend on this side. 12789 */ 12790 io->scsiio.be_move_done = ctl_datamove_remote_dm_read_cb; 12791 12792 /* XXX KDM add checks like the ones in ctl_datamove? */ 12793 12794 fe_datamove = CTL_PORT(io)->fe_datamove; 12795 fe_datamove(io); 12796} 12797 12798static int 12799ctl_datamove_remote_sgl_setup(union ctl_io *io) 12800{ 12801 struct ctl_sg_entry *local_sglist; 12802 uint32_t len_to_go; 12803 int retval; 12804 int i; 12805 12806 retval = 0; 12807 local_sglist = io->io_hdr.local_sglist; 12808 len_to_go = io->scsiio.kern_data_len; 12809 12810 /* 12811 * The difficult thing here is that the size of the various 12812 * S/G segments may be different than the size from the 12813 * remote controller. That'll make it harder when DMAing 12814 * the data back to the other side. 12815 */ 12816 for (i = 0; len_to_go > 0; i++) { 12817 local_sglist[i].len = MIN(len_to_go, CTL_HA_DATAMOVE_SEGMENT); 12818 local_sglist[i].addr = 12819 malloc(local_sglist[i].len, M_CTL, M_WAITOK); 12820 12821 len_to_go -= local_sglist[i].len; 12822 } 12823 /* 12824 * Reset the number of S/G entries accordingly. The original 12825 * number of S/G entries is available in rem_sg_entries. 12826 */ 12827 io->scsiio.kern_sg_entries = i; 12828 12829#if 0 12830 printf("%s: kern_sg_entries = %d\n", __func__, 12831 io->scsiio.kern_sg_entries); 12832 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 12833 printf("%s: sg[%d] = %p, %lu\n", __func__, i, 12834 local_sglist[i].addr, local_sglist[i].len); 12835#endif 12836 12837 return (retval); 12838} 12839 12840static int 12841ctl_datamove_remote_xfer(union ctl_io *io, unsigned command, 12842 ctl_ha_dt_cb callback) 12843{ 12844 struct ctl_ha_dt_req *rq; 12845 struct ctl_sg_entry *remote_sglist, *local_sglist; 12846 uint32_t local_used, remote_used, total_used; 12847 int i, j, isc_ret; 12848 12849 rq = ctl_dt_req_alloc(); 12850 12851 /* 12852 * If we failed to allocate the request, and if the DMA didn't fail 12853 * anyway, set busy status. This is just a resource allocation 12854 * failure. 12855 */ 12856 if ((rq == NULL) 12857 && ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE && 12858 (io->io_hdr.status & CTL_STATUS_MASK) != CTL_SUCCESS)) 12859 ctl_set_busy(&io->scsiio); 12860 12861 if ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE && 12862 (io->io_hdr.status & CTL_STATUS_MASK) != CTL_SUCCESS) { 12863 12864 if (rq != NULL) 12865 ctl_dt_req_free(rq); 12866 12867 /* 12868 * The data move failed. We need to return status back 12869 * to the other controller. No point in trying to DMA 12870 * data to the remote controller. 12871 */ 12872 12873 ctl_send_datamove_done(io, /*have_lock*/ 0); 12874 12875 return (1); 12876 } 12877 12878 local_sglist = io->io_hdr.local_sglist; 12879 remote_sglist = io->io_hdr.remote_sglist; 12880 local_used = 0; 12881 remote_used = 0; 12882 total_used = 0; 12883 12884 /* 12885 * Pull/push the data over the wire from/to the other controller. 12886 * This takes into account the possibility that the local and 12887 * remote sglists may not be identical in terms of the size of 12888 * the elements and the number of elements. 12889 * 12890 * One fundamental assumption here is that the length allocated for 12891 * both the local and remote sglists is identical. Otherwise, we've 12892 * essentially got a coding error of some sort. 12893 */ 12894 isc_ret = CTL_HA_STATUS_SUCCESS; 12895 for (i = 0, j = 0; total_used < io->scsiio.kern_data_len; ) { 12896 uint32_t cur_len; 12897 uint8_t *tmp_ptr; 12898 12899 rq->command = command; 12900 rq->context = io; 12901 12902 /* 12903 * Both pointers should be aligned. But it is possible 12904 * that the allocation length is not. They should both 12905 * also have enough slack left over at the end, though, 12906 * to round up to the next 8 byte boundary. 12907 */ 12908 cur_len = MIN(local_sglist[i].len - local_used, 12909 remote_sglist[j].len - remote_used); 12910 rq->size = cur_len; 12911 12912 tmp_ptr = (uint8_t *)local_sglist[i].addr; 12913 tmp_ptr += local_used; 12914 12915#if 0 12916 /* Use physical addresses when talking to ISC hardware */ 12917 if ((io->io_hdr.flags & CTL_FLAG_BUS_ADDR) == 0) { 12918 /* XXX KDM use busdma */ 12919 rq->local = vtophys(tmp_ptr); 12920 } else 12921 rq->local = tmp_ptr; 12922#else 12923 KASSERT((io->io_hdr.flags & CTL_FLAG_BUS_ADDR) == 0, 12924 ("HA does not support BUS_ADDR")); 12925 rq->local = tmp_ptr; 12926#endif 12927 12928 tmp_ptr = (uint8_t *)remote_sglist[j].addr; 12929 tmp_ptr += remote_used; 12930 rq->remote = tmp_ptr; 12931 12932 rq->callback = NULL; 12933 12934 local_used += cur_len; 12935 if (local_used >= local_sglist[i].len) { 12936 i++; 12937 local_used = 0; 12938 } 12939 12940 remote_used += cur_len; 12941 if (remote_used >= remote_sglist[j].len) { 12942 j++; 12943 remote_used = 0; 12944 } 12945 total_used += cur_len; 12946 12947 if (total_used >= io->scsiio.kern_data_len) 12948 rq->callback = callback; 12949 12950#if 0 12951 printf("%s: %s: local %p remote %p size %d\n", __func__, 12952 (command == CTL_HA_DT_CMD_WRITE) ? "WRITE" : "READ", 12953 rq->local, rq->remote, rq->size); 12954#endif 12955 12956 isc_ret = ctl_dt_single(rq); 12957 if (isc_ret > CTL_HA_STATUS_SUCCESS) 12958 break; 12959 } 12960 if (isc_ret != CTL_HA_STATUS_WAIT) { 12961 rq->ret = isc_ret; 12962 callback(rq); 12963 } 12964 12965 return (0); 12966} 12967 12968static void 12969ctl_datamove_remote_read(union ctl_io *io) 12970{ 12971 int retval; 12972 uint32_t i; 12973 12974 /* 12975 * This will send an error to the other controller in the case of a 12976 * failure. 12977 */ 12978 retval = ctl_datamove_remote_sgl_setup(io); 12979 if (retval != 0) 12980 return; 12981 12982 retval = ctl_datamove_remote_xfer(io, CTL_HA_DT_CMD_READ, 12983 ctl_datamove_remote_read_cb); 12984 if (retval != 0) { 12985 /* 12986 * Make sure we free memory if there was an error.. The 12987 * ctl_datamove_remote_xfer() function will send the 12988 * datamove done message, or call the callback with an 12989 * error if there is a problem. 12990 */ 12991 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 12992 free(io->io_hdr.local_sglist[i].addr, M_CTL); 12993 free(io->io_hdr.remote_sglist, M_CTL); 12994 io->io_hdr.remote_sglist = NULL; 12995 io->io_hdr.local_sglist = NULL; 12996 } 12997} 12998 12999/* 13000 * Process a datamove request from the other controller. This is used for 13001 * XFER mode only, not SER_ONLY mode. For writes, we DMA into local memory 13002 * first. Once that is complete, the data gets DMAed into the remote 13003 * controller's memory. For reads, we DMA from the remote controller's 13004 * memory into our memory first, and then move it out to the FETD. 13005 */ 13006static void 13007ctl_datamove_remote(union ctl_io *io) 13008{ 13009 13010 mtx_assert(&((struct ctl_softc *)CTL_SOFTC(io))->ctl_lock, MA_NOTOWNED); 13011 13012 if (io->io_hdr.flags & CTL_FLAG_FAILOVER) { 13013 ctl_failover_io(io, /*have_lock*/ 0); 13014 return; 13015 } 13016 13017 /* 13018 * Note that we look for an aborted I/O here, but don't do some of 13019 * the other checks that ctl_datamove() normally does. 13020 * We don't need to run the datamove delay code, since that should 13021 * have been done if need be on the other controller. 13022 */ 13023 if (io->io_hdr.flags & CTL_FLAG_ABORT) { 13024 printf("%s: tag 0x%04x on (%u:%u:%u) aborted\n", __func__, 13025 io->scsiio.tag_num, io->io_hdr.nexus.initid, 13026 io->io_hdr.nexus.targ_port, 13027 io->io_hdr.nexus.targ_lun); 13028 io->io_hdr.port_status = 31338; 13029 ctl_send_datamove_done(io, /*have_lock*/ 0); 13030 return; 13031 } 13032 13033 if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_OUT) 13034 ctl_datamove_remote_write(io); 13035 else if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_IN) 13036 ctl_datamove_remote_read(io); 13037 else { 13038 io->io_hdr.port_status = 31339; 13039 ctl_send_datamove_done(io, /*have_lock*/ 0); 13040 } 13041} 13042 13043static void 13044ctl_process_done(union ctl_io *io) 13045{ 13046 struct ctl_softc *softc = CTL_SOFTC(io); 13047 struct ctl_lun *lun = CTL_LUN(io); 13048 void (*fe_done)(union ctl_io *io); 13049 union ctl_ha_msg msg; 13050 uint32_t targ_port = io->io_hdr.nexus.targ_port; 13051 13052 CTL_DEBUG_PRINT(("ctl_process_done\n")); 13053 fe_done = softc->ctl_ports[targ_port]->fe_done; 13054 13055#ifdef CTL_TIME_IO 13056 if ((time_uptime - io->io_hdr.start_time) > ctl_time_io_secs) { 13057 char str[256]; 13058 char path_str[64]; 13059 struct sbuf sb; 13060 13061 ctl_scsi_path_string(io, path_str, sizeof(path_str)); 13062 sbuf_new(&sb, str, sizeof(str), SBUF_FIXEDLEN); 13063 13064 sbuf_cat(&sb, path_str); 13065 switch (io->io_hdr.io_type) { 13066 case CTL_IO_SCSI: 13067 ctl_scsi_command_string(&io->scsiio, NULL, &sb); 13068 sbuf_printf(&sb, "\n"); 13069 sbuf_cat(&sb, path_str); 13070 sbuf_printf(&sb, "Tag: 0x%04x, type %d\n", 13071 io->scsiio.tag_num, io->scsiio.tag_type); 13072 break; 13073 case CTL_IO_TASK: 13074 sbuf_printf(&sb, "Task I/O type: %d, Tag: 0x%04x, " 13075 "Tag Type: %d\n", io->taskio.task_action, 13076 io->taskio.tag_num, io->taskio.tag_type); 13077 break; 13078 default: 13079 panic("%s: Invalid CTL I/O type %d\n", 13080 __func__, io->io_hdr.io_type); 13081 } 13082 sbuf_cat(&sb, path_str); 13083 sbuf_printf(&sb, "ctl_process_done: %jd seconds\n", 13084 (intmax_t)time_uptime - io->io_hdr.start_time); 13085 sbuf_finish(&sb); 13086 printf("%s", sbuf_data(&sb)); 13087 } 13088#endif /* CTL_TIME_IO */ 13089 13090 switch (io->io_hdr.io_type) { 13091 case CTL_IO_SCSI: 13092 break; 13093 case CTL_IO_TASK: 13094 if (ctl_debug & CTL_DEBUG_INFO) 13095 ctl_io_error_print(io, NULL); 13096 fe_done(io); 13097 return; 13098 default: 13099 panic("%s: Invalid CTL I/O type %d\n", 13100 __func__, io->io_hdr.io_type); 13101 } 13102 13103 if (lun == NULL) { 13104 CTL_DEBUG_PRINT(("NULL LUN for lun %d\n", 13105 io->io_hdr.nexus.targ_mapped_lun)); 13106 goto bailout; 13107 } 13108 13109 mtx_lock(&lun->lun_lock); 13110 13111 /* 13112 * Check to see if we have any informational exception and status 13113 * of this command can be modified to report it in form of either 13114 * RECOVERED ERROR or NO SENSE, depending on MRIE mode page field. 13115 */ 13116 if (lun->ie_reported == 0 && lun->ie_asc != 0 && 13117 io->io_hdr.status == CTL_SUCCESS && 13118 (io->io_hdr.flags & CTL_FLAG_STATUS_SENT) == 0) { 13119 uint8_t mrie = lun->MODE_IE.mrie; 13120 uint8_t per = ((lun->MODE_RWER.byte3 & SMS_RWER_PER) || 13121 (lun->MODE_VER.byte3 & SMS_VER_PER)); 13122 if (((mrie == SIEP_MRIE_REC_COND && per) || 13123 mrie == SIEP_MRIE_REC_UNCOND || 13124 mrie == SIEP_MRIE_NO_SENSE) && 13125 (ctl_get_cmd_entry(&io->scsiio, NULL)->flags & 13126 CTL_CMD_FLAG_NO_SENSE) == 0) { 13127 ctl_set_sense(&io->scsiio, 13128 /*current_error*/ 1, 13129 /*sense_key*/ (mrie == SIEP_MRIE_NO_SENSE) ? 13130 SSD_KEY_NO_SENSE : SSD_KEY_RECOVERED_ERROR, 13131 /*asc*/ lun->ie_asc, 13132 /*ascq*/ lun->ie_ascq, 13133 SSD_ELEM_NONE); 13134 lun->ie_reported = 1; 13135 } 13136 } else if (lun->ie_reported < 0) 13137 lun->ie_reported = 0; 13138 13139 /* 13140 * Check to see if we have any errors to inject here. We only 13141 * inject errors for commands that don't already have errors set. 13142 */ 13143 if (!STAILQ_EMPTY(&lun->error_list) && 13144 ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS) && 13145 ((io->io_hdr.flags & CTL_FLAG_STATUS_SENT) == 0)) 13146 ctl_inject_error(lun, io); 13147 13148 /* 13149 * XXX KDM how do we treat commands that aren't completed 13150 * successfully? 13151 * 13152 * XXX KDM should we also track I/O latency? 13153 */ 13154 if ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS && 13155 io->io_hdr.io_type == CTL_IO_SCSI) { 13156#ifdef CTL_TIME_IO 13157 struct bintime cur_bt; 13158#endif 13159 int type; 13160 13161 if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == 13162 CTL_FLAG_DATA_IN) 13163 type = CTL_STATS_READ; 13164 else if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == 13165 CTL_FLAG_DATA_OUT) 13166 type = CTL_STATS_WRITE; 13167 else 13168 type = CTL_STATS_NO_IO; 13169 13170 lun->stats.ports[targ_port].bytes[type] += 13171 io->scsiio.kern_total_len; 13172 lun->stats.ports[targ_port].operations[type]++; 13173#ifdef CTL_TIME_IO 13174 bintime_add(&lun->stats.ports[targ_port].dma_time[type], 13175 &io->io_hdr.dma_bt); 13176 getbinuptime(&cur_bt); 13177 bintime_sub(&cur_bt, &io->io_hdr.start_bt); 13178 bintime_add(&lun->stats.ports[targ_port].time[type], &cur_bt); 13179#endif 13180 lun->stats.ports[targ_port].num_dmas[type] += 13181 io->io_hdr.num_dmas; 13182 } 13183 13184 /* 13185 * Remove this from the OOA queue. 13186 */ 13187 TAILQ_REMOVE(&lun->ooa_queue, &io->io_hdr, ooa_links); 13188#ifdef CTL_TIME_IO 13189 if (TAILQ_EMPTY(&lun->ooa_queue)) 13190 lun->last_busy = getsbinuptime(); 13191#endif 13192 13193 /* 13194 * Run through the blocked queue on this LUN and see if anything 13195 * has become unblocked, now that this transaction is done. 13196 */ 13197 ctl_check_blocked(lun); 13198 13199 /* 13200 * If the LUN has been invalidated, free it if there is nothing 13201 * left on its OOA queue. 13202 */ 13203 if ((lun->flags & CTL_LUN_INVALID) 13204 && TAILQ_EMPTY(&lun->ooa_queue)) { 13205 mtx_unlock(&lun->lun_lock); 13206 mtx_lock(&softc->ctl_lock); 13207 ctl_free_lun(lun); 13208 mtx_unlock(&softc->ctl_lock); 13209 } else 13210 mtx_unlock(&lun->lun_lock); 13211 13212bailout: 13213 13214 /* 13215 * If this command has been aborted, make sure we set the status 13216 * properly. The FETD is responsible for freeing the I/O and doing 13217 * whatever it needs to do to clean up its state. 13218 */ 13219 if (io->io_hdr.flags & CTL_FLAG_ABORT) 13220 ctl_set_task_aborted(&io->scsiio); 13221 13222 /* 13223 * If enabled, print command error status. 13224 */ 13225 if ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_SUCCESS && 13226 (ctl_debug & CTL_DEBUG_INFO) != 0) 13227 ctl_io_error_print(io, NULL); 13228 13229 /* 13230 * Tell the FETD or the other shelf controller we're done with this 13231 * command. Note that only SCSI commands get to this point. Task 13232 * management commands are completed above. 13233 */ 13234 if ((softc->ha_mode != CTL_HA_MODE_XFER) && 13235 (io->io_hdr.flags & CTL_FLAG_SENT_2OTHER_SC)) { 13236 memset(&msg, 0, sizeof(msg)); 13237 msg.hdr.msg_type = CTL_MSG_FINISH_IO; 13238 msg.hdr.serializing_sc = io->io_hdr.serializing_sc; 13239 msg.hdr.nexus = io->io_hdr.nexus; 13240 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, 13241 sizeof(msg.scsi) - sizeof(msg.scsi.sense_data), 13242 M_WAITOK); 13243 } 13244 13245 fe_done(io); 13246} 13247 13248#ifdef CTL_WITH_CA 13249/* 13250 * Front end should call this if it doesn't do autosense. When the request 13251 * sense comes back in from the initiator, we'll dequeue this and send it. 13252 */ 13253int 13254ctl_queue_sense(union ctl_io *io) 13255{ 13256 struct ctl_softc *softc = CTL_SOFTC(io); 13257 struct ctl_port *port = CTL_PORT(io); 13258 struct ctl_lun *lun; 13259 uint32_t initidx, targ_lun; 13260 13261 CTL_DEBUG_PRINT(("ctl_queue_sense\n")); 13262 13263 targ_lun = ctl_lun_map_from_port(port, io->io_hdr.nexus.targ_lun); 13264 13265 /* 13266 * LUN lookup will likely move to the ctl_work_thread() once we 13267 * have our new queueing infrastructure (that doesn't put things on 13268 * a per-LUN queue initially). That is so that we can handle 13269 * things like an INQUIRY to a LUN that we don't have enabled. We 13270 * can't deal with that right now. 13271 * If we don't have a LUN for this, just toss the sense information. 13272 */ 13273 mtx_lock(&softc->ctl_lock); 13274 if (targ_lun >= CTL_MAX_LUNS || 13275 (lun = softc->ctl_luns[targ_lun]) == NULL) { 13276 mtx_unlock(&softc->ctl_lock); 13277 goto bailout; 13278 } 13279 mtx_lock(&lun->lun_lock); 13280 mtx_unlock(&softc->ctl_lock); 13281 13282 /* 13283 * Already have CA set for this LUN...toss the sense information. 13284 */ 13285 initidx = ctl_get_initindex(&io->io_hdr.nexus); 13286 if (ctl_is_set(lun->have_ca, initidx)) { 13287 mtx_unlock(&lun->lun_lock); 13288 goto bailout; 13289 } 13290 13291 memcpy(&lun->pending_sense[initidx], &io->scsiio.sense_data, 13292 MIN(sizeof(lun->pending_sense[initidx]), 13293 sizeof(io->scsiio.sense_data))); 13294 ctl_set_mask(lun->have_ca, initidx); 13295 mtx_unlock(&lun->lun_lock); 13296 13297bailout: 13298 ctl_free_io(io); 13299 return (CTL_RETVAL_COMPLETE); 13300} 13301#endif 13302 13303/* 13304 * Primary command inlet from frontend ports. All SCSI and task I/O 13305 * requests must go through this function. 13306 */ 13307int 13308ctl_queue(union ctl_io *io) 13309{ 13310 struct ctl_port *port = CTL_PORT(io); 13311 13312 CTL_DEBUG_PRINT(("ctl_queue cdb[0]=%02X\n", io->scsiio.cdb[0])); 13313 13314#ifdef CTL_TIME_IO 13315 io->io_hdr.start_time = time_uptime; 13316 getbinuptime(&io->io_hdr.start_bt); 13317#endif /* CTL_TIME_IO */ 13318 13319 /* Map FE-specific LUN ID into global one. */ 13320 io->io_hdr.nexus.targ_mapped_lun = 13321 ctl_lun_map_from_port(port, io->io_hdr.nexus.targ_lun); 13322 13323 switch (io->io_hdr.io_type) { 13324 case CTL_IO_SCSI: 13325 case CTL_IO_TASK: 13326 if (ctl_debug & CTL_DEBUG_CDB) 13327 ctl_io_print(io); 13328 ctl_enqueue_incoming(io); 13329 break; 13330 default: 13331 printf("ctl_queue: unknown I/O type %d\n", io->io_hdr.io_type); 13332 return (EINVAL); 13333 } 13334 13335 return (CTL_RETVAL_COMPLETE); 13336} 13337 13338#ifdef CTL_IO_DELAY 13339static void 13340ctl_done_timer_wakeup(void *arg) 13341{ 13342 union ctl_io *io; 13343 13344 io = (union ctl_io *)arg; 13345 ctl_done(io); 13346} 13347#endif /* CTL_IO_DELAY */ 13348 13349void 13350ctl_serseq_done(union ctl_io *io) 13351{ 13352 struct ctl_lun *lun = CTL_LUN(io);; 13353 13354 if (lun->be_lun == NULL || 13355 lun->be_lun->serseq == CTL_LUN_SERSEQ_OFF) 13356 return; 13357 mtx_lock(&lun->lun_lock); 13358 io->io_hdr.flags |= CTL_FLAG_SERSEQ_DONE; 13359 ctl_check_blocked(lun); 13360 mtx_unlock(&lun->lun_lock); 13361} 13362 13363void 13364ctl_done(union ctl_io *io) 13365{ 13366 13367 /* 13368 * Enable this to catch duplicate completion issues. 13369 */ 13370#if 0 13371 if (io->io_hdr.flags & CTL_FLAG_ALREADY_DONE) { 13372 printf("%s: type %d msg %d cdb %x iptl: " 13373 "%u:%u:%u tag 0x%04x " 13374 "flag %#x status %x\n", 13375 __func__, 13376 io->io_hdr.io_type, 13377 io->io_hdr.msg_type, 13378 io->scsiio.cdb[0], 13379 io->io_hdr.nexus.initid, 13380 io->io_hdr.nexus.targ_port, 13381 io->io_hdr.nexus.targ_lun, 13382 (io->io_hdr.io_type == 13383 CTL_IO_TASK) ? 13384 io->taskio.tag_num : 13385 io->scsiio.tag_num, 13386 io->io_hdr.flags, 13387 io->io_hdr.status); 13388 } else 13389 io->io_hdr.flags |= CTL_FLAG_ALREADY_DONE; 13390#endif 13391 13392 /* 13393 * This is an internal copy of an I/O, and should not go through 13394 * the normal done processing logic. 13395 */ 13396 if (io->io_hdr.flags & CTL_FLAG_INT_COPY) 13397 return; 13398 13399#ifdef CTL_IO_DELAY 13400 if (io->io_hdr.flags & CTL_FLAG_DELAY_DONE) { 13401 io->io_hdr.flags &= ~CTL_FLAG_DELAY_DONE; 13402 } else { 13403 struct ctl_lun *lun = CTL_LUN(io); 13404 13405 if ((lun != NULL) 13406 && (lun->delay_info.done_delay > 0)) { 13407 13408 callout_init(&io->io_hdr.delay_callout, /*mpsafe*/ 1); 13409 io->io_hdr.flags |= CTL_FLAG_DELAY_DONE; 13410 callout_reset(&io->io_hdr.delay_callout, 13411 lun->delay_info.done_delay * hz, 13412 ctl_done_timer_wakeup, io); 13413 if (lun->delay_info.done_type == CTL_DELAY_TYPE_ONESHOT) 13414 lun->delay_info.done_delay = 0; 13415 return; 13416 } 13417 } 13418#endif /* CTL_IO_DELAY */ 13419 13420 ctl_enqueue_done(io); 13421} 13422 13423static void 13424ctl_work_thread(void *arg) 13425{ 13426 struct ctl_thread *thr = (struct ctl_thread *)arg; 13427 struct ctl_softc *softc = thr->ctl_softc; 13428 union ctl_io *io; 13429 int retval; 13430 13431 CTL_DEBUG_PRINT(("ctl_work_thread starting\n")); 13432 13433 for (;;) { 13434 /* 13435 * We handle the queues in this order: 13436 * - ISC 13437 * - done queue (to free up resources, unblock other commands) 13438 * - RtR queue 13439 * - incoming queue 13440 * 13441 * If those queues are empty, we break out of the loop and 13442 * go to sleep. 13443 */ 13444 mtx_lock(&thr->queue_lock); 13445 io = (union ctl_io *)STAILQ_FIRST(&thr->isc_queue); 13446 if (io != NULL) { 13447 STAILQ_REMOVE_HEAD(&thr->isc_queue, links); 13448 mtx_unlock(&thr->queue_lock); 13449 ctl_handle_isc(io); 13450 continue; 13451 } 13452 io = (union ctl_io *)STAILQ_FIRST(&thr->done_queue); 13453 if (io != NULL) { 13454 STAILQ_REMOVE_HEAD(&thr->done_queue, links); 13455 /* clear any blocked commands, call fe_done */ 13456 mtx_unlock(&thr->queue_lock); 13457 ctl_process_done(io); 13458 continue; 13459 } 13460 io = (union ctl_io *)STAILQ_FIRST(&thr->incoming_queue); 13461 if (io != NULL) { 13462 STAILQ_REMOVE_HEAD(&thr->incoming_queue, links); 13463 mtx_unlock(&thr->queue_lock); 13464 if (io->io_hdr.io_type == CTL_IO_TASK) 13465 ctl_run_task(io); 13466 else 13467 ctl_scsiio_precheck(softc, &io->scsiio); 13468 continue; 13469 } 13470 io = (union ctl_io *)STAILQ_FIRST(&thr->rtr_queue); 13471 if (io != NULL) { 13472 STAILQ_REMOVE_HEAD(&thr->rtr_queue, links); 13473 mtx_unlock(&thr->queue_lock); 13474 retval = ctl_scsiio(&io->scsiio); 13475 if (retval != CTL_RETVAL_COMPLETE) 13476 CTL_DEBUG_PRINT(("ctl_scsiio failed\n")); 13477 continue; 13478 } 13479 13480 /* Sleep until we have something to do. */ 13481 mtx_sleep(thr, &thr->queue_lock, PDROP | PRIBIO, "-", 0); 13482 } 13483} 13484 13485static void 13486ctl_lun_thread(void *arg) 13487{ 13488 struct ctl_softc *softc = (struct ctl_softc *)arg; 13489 struct ctl_be_lun *be_lun; 13490 13491 CTL_DEBUG_PRINT(("ctl_lun_thread starting\n")); 13492 13493 for (;;) { 13494 mtx_lock(&softc->ctl_lock); 13495 be_lun = STAILQ_FIRST(&softc->pending_lun_queue); 13496 if (be_lun != NULL) { 13497 STAILQ_REMOVE_HEAD(&softc->pending_lun_queue, links); 13498 mtx_unlock(&softc->ctl_lock); 13499 ctl_create_lun(be_lun); 13500 continue; 13501 } 13502 13503 /* Sleep until we have something to do. */ 13504 mtx_sleep(&softc->pending_lun_queue, &softc->ctl_lock, 13505 PDROP | PRIBIO, "-", 0); 13506 } 13507} 13508 13509static void 13510ctl_thresh_thread(void *arg) 13511{ 13512 struct ctl_softc *softc = (struct ctl_softc *)arg; 13513 struct ctl_lun *lun; 13514 struct ctl_logical_block_provisioning_page *page; 13515 const char *attr; 13516 union ctl_ha_msg msg; 13517 uint64_t thres, val; 13518 int i, e, set; 13519 13520 CTL_DEBUG_PRINT(("ctl_thresh_thread starting\n")); 13521 13522 for (;;) { 13523 mtx_lock(&softc->ctl_lock); 13524 STAILQ_FOREACH(lun, &softc->lun_list, links) { 13525 if ((lun->flags & CTL_LUN_DISABLED) || 13526 (lun->flags & CTL_LUN_NO_MEDIA) || 13527 lun->backend->lun_attr == NULL) 13528 continue; 13529 if ((lun->flags & CTL_LUN_PRIMARY_SC) == 0 && 13530 softc->ha_mode == CTL_HA_MODE_XFER) 13531 continue; 13532 if ((lun->MODE_RWER.byte8 & SMS_RWER_LBPERE) == 0) 13533 continue; 13534 e = 0; 13535 page = &lun->MODE_LBP; 13536 for (i = 0; i < CTL_NUM_LBP_THRESH; i++) { 13537 if ((page->descr[i].flags & SLBPPD_ENABLED) == 0) 13538 continue; 13539 thres = scsi_4btoul(page->descr[i].count); 13540 thres <<= CTL_LBP_EXPONENT; 13541 switch (page->descr[i].resource) { 13542 case 0x01: 13543 attr = "blocksavail"; 13544 break; 13545 case 0x02: 13546 attr = "blocksused"; 13547 break; 13548 case 0xf1: 13549 attr = "poolblocksavail"; 13550 break; 13551 case 0xf2: 13552 attr = "poolblocksused"; 13553 break; 13554 default: 13555 continue; 13556 } 13557 mtx_unlock(&softc->ctl_lock); // XXX 13558 val = lun->backend->lun_attr( 13559 lun->be_lun->be_lun, attr); 13560 mtx_lock(&softc->ctl_lock); 13561 if (val == UINT64_MAX) 13562 continue; 13563 if ((page->descr[i].flags & SLBPPD_ARMING_MASK) 13564 == SLBPPD_ARMING_INC) 13565 e = (val >= thres); 13566 else 13567 e = (val <= thres); 13568 if (e) 13569 break; 13570 } 13571 mtx_lock(&lun->lun_lock); 13572 if (e) { 13573 scsi_u64to8b((uint8_t *)&page->descr[i] - 13574 (uint8_t *)page, lun->ua_tpt_info); 13575 if (lun->lasttpt == 0 || 13576 time_uptime - lun->lasttpt >= CTL_LBP_UA_PERIOD) { 13577 lun->lasttpt = time_uptime; 13578 ctl_est_ua_all(lun, -1, CTL_UA_THIN_PROV_THRES); 13579 set = 1; 13580 } else 13581 set = 0; 13582 } else { 13583 lun->lasttpt = 0; 13584 ctl_clr_ua_all(lun, -1, CTL_UA_THIN_PROV_THRES); 13585 set = -1; 13586 } 13587 mtx_unlock(&lun->lun_lock); 13588 if (set != 0 && 13589 lun->ctl_softc->ha_mode == CTL_HA_MODE_XFER) { 13590 /* Send msg to other side. */ 13591 bzero(&msg.ua, sizeof(msg.ua)); 13592 msg.hdr.msg_type = CTL_MSG_UA; 13593 msg.hdr.nexus.initid = -1; 13594 msg.hdr.nexus.targ_port = -1; 13595 msg.hdr.nexus.targ_lun = lun->lun; 13596 msg.hdr.nexus.targ_mapped_lun = lun->lun; 13597 msg.ua.ua_all = 1; 13598 msg.ua.ua_set = (set > 0); 13599 msg.ua.ua_type = CTL_UA_THIN_PROV_THRES; 13600 memcpy(msg.ua.ua_info, lun->ua_tpt_info, 8); 13601 mtx_unlock(&softc->ctl_lock); // XXX 13602 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, 13603 sizeof(msg.ua), M_WAITOK); 13604 mtx_lock(&softc->ctl_lock); 13605 } 13606 } 13607 mtx_unlock(&softc->ctl_lock); 13608 pause("-", CTL_LBP_PERIOD * hz); 13609 } 13610} 13611 13612static void 13613ctl_enqueue_incoming(union ctl_io *io) 13614{ 13615 struct ctl_softc *softc = CTL_SOFTC(io); 13616 struct ctl_thread *thr; 13617 u_int idx; 13618 13619 idx = (io->io_hdr.nexus.targ_port * 127 + 13620 io->io_hdr.nexus.initid) % worker_threads; 13621 thr = &softc->threads[idx]; 13622 mtx_lock(&thr->queue_lock); 13623 STAILQ_INSERT_TAIL(&thr->incoming_queue, &io->io_hdr, links); 13624 mtx_unlock(&thr->queue_lock); 13625 wakeup(thr); 13626} 13627 13628static void 13629ctl_enqueue_rtr(union ctl_io *io) 13630{ 13631 struct ctl_softc *softc = CTL_SOFTC(io); 13632 struct ctl_thread *thr; 13633 13634 thr = &softc->threads[io->io_hdr.nexus.targ_mapped_lun % worker_threads]; 13635 mtx_lock(&thr->queue_lock); 13636 STAILQ_INSERT_TAIL(&thr->rtr_queue, &io->io_hdr, links); 13637 mtx_unlock(&thr->queue_lock); 13638 wakeup(thr); 13639} 13640 13641static void 13642ctl_enqueue_done(union ctl_io *io) 13643{ 13644 struct ctl_softc *softc = CTL_SOFTC(io); 13645 struct ctl_thread *thr; 13646 13647 thr = &softc->threads[io->io_hdr.nexus.targ_mapped_lun % worker_threads]; 13648 mtx_lock(&thr->queue_lock); 13649 STAILQ_INSERT_TAIL(&thr->done_queue, &io->io_hdr, links); 13650 mtx_unlock(&thr->queue_lock); 13651 wakeup(thr); 13652} 13653 13654static void 13655ctl_enqueue_isc(union ctl_io *io) 13656{ 13657 struct ctl_softc *softc = CTL_SOFTC(io); 13658 struct ctl_thread *thr; 13659 13660 thr = &softc->threads[io->io_hdr.nexus.targ_mapped_lun % worker_threads]; 13661 mtx_lock(&thr->queue_lock); 13662 STAILQ_INSERT_TAIL(&thr->isc_queue, &io->io_hdr, links); 13663 mtx_unlock(&thr->queue_lock); 13664 wakeup(thr); 13665} 13666 13667/* 13668 * vim: ts=8 13669 */ 13670