ctl.c revision 312835
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 312835 2017-01-26 20:50:01Z 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; 2774 int i; 2775 2776 stats = (struct ctl_stats *)addr; 2777 2778 if ((sizeof(struct ctl_lun_io_stats) * softc->num_luns) > 2779 stats->alloc_len) { 2780 stats->status = CTL_SS_NEED_MORE_SPACE; 2781 stats->num_luns = softc->num_luns; 2782 break; 2783 } 2784 /* 2785 * XXX KDM no locking here. If the LUN list changes, 2786 * things can blow up. 2787 */ 2788 i = 0; 2789 STAILQ_FOREACH(lun, &softc->lun_list, links) { 2790 retval = copyout(&lun->stats, &stats->lun_stats[i++], 2791 sizeof(lun->stats)); 2792 if (retval != 0) 2793 break; 2794 } 2795 stats->num_luns = softc->num_luns; 2796 stats->fill_len = sizeof(struct ctl_lun_io_stats) * 2797 softc->num_luns; 2798 stats->status = CTL_SS_OK; 2799#ifdef CTL_TIME_IO 2800 stats->flags = CTL_STATS_FLAG_TIME_VALID; 2801#else 2802 stats->flags = CTL_STATS_FLAG_NONE; 2803#endif 2804 getnanouptime(&stats->timestamp); 2805 break; 2806 } 2807 case CTL_ERROR_INJECT: { 2808 struct ctl_error_desc *err_desc, *new_err_desc; 2809 2810 err_desc = (struct ctl_error_desc *)addr; 2811 2812 new_err_desc = malloc(sizeof(*new_err_desc), M_CTL, 2813 M_WAITOK | M_ZERO); 2814 bcopy(err_desc, new_err_desc, sizeof(*new_err_desc)); 2815 2816 mtx_lock(&softc->ctl_lock); 2817 if (err_desc->lun_id >= CTL_MAX_LUNS || 2818 (lun = softc->ctl_luns[err_desc->lun_id]) == NULL) { 2819 mtx_unlock(&softc->ctl_lock); 2820 free(new_err_desc, M_CTL); 2821 printf("%s: CTL_ERROR_INJECT: invalid LUN %ju\n", 2822 __func__, (uintmax_t)err_desc->lun_id); 2823 retval = EINVAL; 2824 break; 2825 } 2826 mtx_lock(&lun->lun_lock); 2827 mtx_unlock(&softc->ctl_lock); 2828 2829 /* 2830 * We could do some checking here to verify the validity 2831 * of the request, but given the complexity of error 2832 * injection requests, the checking logic would be fairly 2833 * complex. 2834 * 2835 * For now, if the request is invalid, it just won't get 2836 * executed and might get deleted. 2837 */ 2838 STAILQ_INSERT_TAIL(&lun->error_list, new_err_desc, links); 2839 2840 /* 2841 * XXX KDM check to make sure the serial number is unique, 2842 * in case we somehow manage to wrap. That shouldn't 2843 * happen for a very long time, but it's the right thing to 2844 * do. 2845 */ 2846 new_err_desc->serial = lun->error_serial; 2847 err_desc->serial = lun->error_serial; 2848 lun->error_serial++; 2849 2850 mtx_unlock(&lun->lun_lock); 2851 break; 2852 } 2853 case CTL_ERROR_INJECT_DELETE: { 2854 struct ctl_error_desc *delete_desc, *desc, *desc2; 2855 int delete_done; 2856 2857 delete_desc = (struct ctl_error_desc *)addr; 2858 delete_done = 0; 2859 2860 mtx_lock(&softc->ctl_lock); 2861 if (delete_desc->lun_id >= CTL_MAX_LUNS || 2862 (lun = softc->ctl_luns[delete_desc->lun_id]) == NULL) { 2863 mtx_unlock(&softc->ctl_lock); 2864 printf("%s: CTL_ERROR_INJECT_DELETE: invalid LUN %ju\n", 2865 __func__, (uintmax_t)delete_desc->lun_id); 2866 retval = EINVAL; 2867 break; 2868 } 2869 mtx_lock(&lun->lun_lock); 2870 mtx_unlock(&softc->ctl_lock); 2871 STAILQ_FOREACH_SAFE(desc, &lun->error_list, links, desc2) { 2872 if (desc->serial != delete_desc->serial) 2873 continue; 2874 2875 STAILQ_REMOVE(&lun->error_list, desc, ctl_error_desc, 2876 links); 2877 free(desc, M_CTL); 2878 delete_done = 1; 2879 } 2880 mtx_unlock(&lun->lun_lock); 2881 if (delete_done == 0) { 2882 printf("%s: CTL_ERROR_INJECT_DELETE: can't find " 2883 "error serial %ju on LUN %u\n", __func__, 2884 delete_desc->serial, delete_desc->lun_id); 2885 retval = EINVAL; 2886 break; 2887 } 2888 break; 2889 } 2890 case CTL_DUMP_STRUCTS: { 2891 int j, k; 2892 struct ctl_port *port; 2893 struct ctl_frontend *fe; 2894 2895 mtx_lock(&softc->ctl_lock); 2896 printf("CTL Persistent Reservation information start:\n"); 2897 STAILQ_FOREACH(lun, &softc->lun_list, links) { 2898 mtx_lock(&lun->lun_lock); 2899 if ((lun->flags & CTL_LUN_DISABLED) != 0) { 2900 mtx_unlock(&lun->lun_lock); 2901 continue; 2902 } 2903 2904 for (j = 0; j < CTL_MAX_PORTS; j++) { 2905 if (lun->pr_keys[j] == NULL) 2906 continue; 2907 for (k = 0; k < CTL_MAX_INIT_PER_PORT; k++){ 2908 if (lun->pr_keys[j][k] == 0) 2909 continue; 2910 printf(" LUN %ju port %d iid %d key " 2911 "%#jx\n", lun->lun, j, k, 2912 (uintmax_t)lun->pr_keys[j][k]); 2913 } 2914 } 2915 mtx_unlock(&lun->lun_lock); 2916 } 2917 printf("CTL Persistent Reservation information end\n"); 2918 printf("CTL Ports:\n"); 2919 STAILQ_FOREACH(port, &softc->port_list, links) { 2920 printf(" Port %d '%s' Frontend '%s' Type %u pp %d vp %d WWNN " 2921 "%#jx WWPN %#jx\n", port->targ_port, port->port_name, 2922 port->frontend->name, port->port_type, 2923 port->physical_port, port->virtual_port, 2924 (uintmax_t)port->wwnn, (uintmax_t)port->wwpn); 2925 for (j = 0; j < CTL_MAX_INIT_PER_PORT; j++) { 2926 if (port->wwpn_iid[j].in_use == 0 && 2927 port->wwpn_iid[j].wwpn == 0 && 2928 port->wwpn_iid[j].name == NULL) 2929 continue; 2930 2931 printf(" iid %u use %d WWPN %#jx '%s'\n", 2932 j, port->wwpn_iid[j].in_use, 2933 (uintmax_t)port->wwpn_iid[j].wwpn, 2934 port->wwpn_iid[j].name); 2935 } 2936 } 2937 printf("CTL Port information end\n"); 2938 mtx_unlock(&softc->ctl_lock); 2939 /* 2940 * XXX KDM calling this without a lock. We'd likely want 2941 * to drop the lock before calling the frontend's dump 2942 * routine anyway. 2943 */ 2944 printf("CTL Frontends:\n"); 2945 STAILQ_FOREACH(fe, &softc->fe_list, links) { 2946 printf(" Frontend '%s'\n", fe->name); 2947 if (fe->fe_dump != NULL) 2948 fe->fe_dump(); 2949 } 2950 printf("CTL Frontend information end\n"); 2951 break; 2952 } 2953 case CTL_LUN_REQ: { 2954 struct ctl_lun_req *lun_req; 2955 struct ctl_backend_driver *backend; 2956 2957 lun_req = (struct ctl_lun_req *)addr; 2958 2959 backend = ctl_backend_find(lun_req->backend); 2960 if (backend == NULL) { 2961 lun_req->status = CTL_LUN_ERROR; 2962 snprintf(lun_req->error_str, 2963 sizeof(lun_req->error_str), 2964 "Backend \"%s\" not found.", 2965 lun_req->backend); 2966 break; 2967 } 2968 if (lun_req->num_be_args > 0) { 2969 lun_req->kern_be_args = ctl_copyin_args( 2970 lun_req->num_be_args, 2971 lun_req->be_args, 2972 lun_req->error_str, 2973 sizeof(lun_req->error_str)); 2974 if (lun_req->kern_be_args == NULL) { 2975 lun_req->status = CTL_LUN_ERROR; 2976 break; 2977 } 2978 } 2979 2980 retval = backend->ioctl(dev, cmd, addr, flag, td); 2981 2982 if (lun_req->num_be_args > 0) { 2983 ctl_copyout_args(lun_req->num_be_args, 2984 lun_req->kern_be_args); 2985 ctl_free_args(lun_req->num_be_args, 2986 lun_req->kern_be_args); 2987 } 2988 break; 2989 } 2990 case CTL_LUN_LIST: { 2991 struct sbuf *sb; 2992 struct ctl_lun_list *list; 2993 struct ctl_option *opt; 2994 2995 list = (struct ctl_lun_list *)addr; 2996 2997 /* 2998 * Allocate a fixed length sbuf here, based on the length 2999 * of the user's buffer. We could allocate an auto-extending 3000 * buffer, and then tell the user how much larger our 3001 * amount of data is than his buffer, but that presents 3002 * some problems: 3003 * 3004 * 1. The sbuf(9) routines use a blocking malloc, and so 3005 * we can't hold a lock while calling them with an 3006 * auto-extending buffer. 3007 * 3008 * 2. There is not currently a LUN reference counting 3009 * mechanism, outside of outstanding transactions on 3010 * the LUN's OOA queue. So a LUN could go away on us 3011 * while we're getting the LUN number, backend-specific 3012 * information, etc. Thus, given the way things 3013 * currently work, we need to hold the CTL lock while 3014 * grabbing LUN information. 3015 * 3016 * So, from the user's standpoint, the best thing to do is 3017 * allocate what he thinks is a reasonable buffer length, 3018 * and then if he gets a CTL_LUN_LIST_NEED_MORE_SPACE error, 3019 * double the buffer length and try again. (And repeat 3020 * that until he succeeds.) 3021 */ 3022 sb = sbuf_new(NULL, NULL, list->alloc_len, SBUF_FIXEDLEN); 3023 if (sb == NULL) { 3024 list->status = CTL_LUN_LIST_ERROR; 3025 snprintf(list->error_str, sizeof(list->error_str), 3026 "Unable to allocate %d bytes for LUN list", 3027 list->alloc_len); 3028 break; 3029 } 3030 3031 sbuf_printf(sb, "<ctllunlist>\n"); 3032 3033 mtx_lock(&softc->ctl_lock); 3034 STAILQ_FOREACH(lun, &softc->lun_list, links) { 3035 mtx_lock(&lun->lun_lock); 3036 retval = sbuf_printf(sb, "<lun id=\"%ju\">\n", 3037 (uintmax_t)lun->lun); 3038 3039 /* 3040 * Bail out as soon as we see that we've overfilled 3041 * the buffer. 3042 */ 3043 if (retval != 0) 3044 break; 3045 3046 retval = sbuf_printf(sb, "\t<backend_type>%s" 3047 "</backend_type>\n", 3048 (lun->backend == NULL) ? "none" : 3049 lun->backend->name); 3050 3051 if (retval != 0) 3052 break; 3053 3054 retval = sbuf_printf(sb, "\t<lun_type>%d</lun_type>\n", 3055 lun->be_lun->lun_type); 3056 3057 if (retval != 0) 3058 break; 3059 3060 if (lun->backend == NULL) { 3061 retval = sbuf_printf(sb, "</lun>\n"); 3062 if (retval != 0) 3063 break; 3064 continue; 3065 } 3066 3067 retval = sbuf_printf(sb, "\t<size>%ju</size>\n", 3068 (lun->be_lun->maxlba > 0) ? 3069 lun->be_lun->maxlba + 1 : 0); 3070 3071 if (retval != 0) 3072 break; 3073 3074 retval = sbuf_printf(sb, "\t<blocksize>%u</blocksize>\n", 3075 lun->be_lun->blocksize); 3076 3077 if (retval != 0) 3078 break; 3079 3080 retval = sbuf_printf(sb, "\t<serial_number>"); 3081 3082 if (retval != 0) 3083 break; 3084 3085 retval = ctl_sbuf_printf_esc(sb, 3086 lun->be_lun->serial_num, 3087 sizeof(lun->be_lun->serial_num)); 3088 3089 if (retval != 0) 3090 break; 3091 3092 retval = sbuf_printf(sb, "</serial_number>\n"); 3093 3094 if (retval != 0) 3095 break; 3096 3097 retval = sbuf_printf(sb, "\t<device_id>"); 3098 3099 if (retval != 0) 3100 break; 3101 3102 retval = ctl_sbuf_printf_esc(sb, 3103 lun->be_lun->device_id, 3104 sizeof(lun->be_lun->device_id)); 3105 3106 if (retval != 0) 3107 break; 3108 3109 retval = sbuf_printf(sb, "</device_id>\n"); 3110 3111 if (retval != 0) 3112 break; 3113 3114 if (lun->backend->lun_info != NULL) { 3115 retval = lun->backend->lun_info(lun->be_lun->be_lun, sb); 3116 if (retval != 0) 3117 break; 3118 } 3119 STAILQ_FOREACH(opt, &lun->be_lun->options, links) { 3120 retval = sbuf_printf(sb, "\t<%s>%s</%s>\n", 3121 opt->name, opt->value, opt->name); 3122 if (retval != 0) 3123 break; 3124 } 3125 3126 retval = sbuf_printf(sb, "</lun>\n"); 3127 3128 if (retval != 0) 3129 break; 3130 mtx_unlock(&lun->lun_lock); 3131 } 3132 if (lun != NULL) 3133 mtx_unlock(&lun->lun_lock); 3134 mtx_unlock(&softc->ctl_lock); 3135 3136 if ((retval != 0) 3137 || ((retval = sbuf_printf(sb, "</ctllunlist>\n")) != 0)) { 3138 retval = 0; 3139 sbuf_delete(sb); 3140 list->status = CTL_LUN_LIST_NEED_MORE_SPACE; 3141 snprintf(list->error_str, sizeof(list->error_str), 3142 "Out of space, %d bytes is too small", 3143 list->alloc_len); 3144 break; 3145 } 3146 3147 sbuf_finish(sb); 3148 3149 retval = copyout(sbuf_data(sb), list->lun_xml, 3150 sbuf_len(sb) + 1); 3151 3152 list->fill_len = sbuf_len(sb) + 1; 3153 list->status = CTL_LUN_LIST_OK; 3154 sbuf_delete(sb); 3155 break; 3156 } 3157 case CTL_ISCSI: { 3158 struct ctl_iscsi *ci; 3159 struct ctl_frontend *fe; 3160 3161 ci = (struct ctl_iscsi *)addr; 3162 3163 fe = ctl_frontend_find("iscsi"); 3164 if (fe == NULL) { 3165 ci->status = CTL_ISCSI_ERROR; 3166 snprintf(ci->error_str, sizeof(ci->error_str), 3167 "Frontend \"iscsi\" not found."); 3168 break; 3169 } 3170 3171 retval = fe->ioctl(dev, cmd, addr, flag, td); 3172 break; 3173 } 3174 case CTL_PORT_REQ: { 3175 struct ctl_req *req; 3176 struct ctl_frontend *fe; 3177 3178 req = (struct ctl_req *)addr; 3179 3180 fe = ctl_frontend_find(req->driver); 3181 if (fe == NULL) { 3182 req->status = CTL_LUN_ERROR; 3183 snprintf(req->error_str, sizeof(req->error_str), 3184 "Frontend \"%s\" not found.", req->driver); 3185 break; 3186 } 3187 if (req->num_args > 0) { 3188 req->kern_args = ctl_copyin_args(req->num_args, 3189 req->args, req->error_str, sizeof(req->error_str)); 3190 if (req->kern_args == NULL) { 3191 req->status = CTL_LUN_ERROR; 3192 break; 3193 } 3194 } 3195 3196 if (fe->ioctl) 3197 retval = fe->ioctl(dev, cmd, addr, flag, td); 3198 else 3199 retval = ENODEV; 3200 3201 if (req->num_args > 0) { 3202 ctl_copyout_args(req->num_args, req->kern_args); 3203 ctl_free_args(req->num_args, req->kern_args); 3204 } 3205 break; 3206 } 3207 case CTL_PORT_LIST: { 3208 struct sbuf *sb; 3209 struct ctl_port *port; 3210 struct ctl_lun_list *list; 3211 struct ctl_option *opt; 3212 int j; 3213 uint32_t plun; 3214 3215 list = (struct ctl_lun_list *)addr; 3216 3217 sb = sbuf_new(NULL, NULL, list->alloc_len, SBUF_FIXEDLEN); 3218 if (sb == NULL) { 3219 list->status = CTL_LUN_LIST_ERROR; 3220 snprintf(list->error_str, sizeof(list->error_str), 3221 "Unable to allocate %d bytes for LUN list", 3222 list->alloc_len); 3223 break; 3224 } 3225 3226 sbuf_printf(sb, "<ctlportlist>\n"); 3227 3228 mtx_lock(&softc->ctl_lock); 3229 STAILQ_FOREACH(port, &softc->port_list, links) { 3230 retval = sbuf_printf(sb, "<targ_port id=\"%ju\">\n", 3231 (uintmax_t)port->targ_port); 3232 3233 /* 3234 * Bail out as soon as we see that we've overfilled 3235 * the buffer. 3236 */ 3237 if (retval != 0) 3238 break; 3239 3240 retval = sbuf_printf(sb, "\t<frontend_type>%s" 3241 "</frontend_type>\n", port->frontend->name); 3242 if (retval != 0) 3243 break; 3244 3245 retval = sbuf_printf(sb, "\t<port_type>%d</port_type>\n", 3246 port->port_type); 3247 if (retval != 0) 3248 break; 3249 3250 retval = sbuf_printf(sb, "\t<online>%s</online>\n", 3251 (port->status & CTL_PORT_STATUS_ONLINE) ? "YES" : "NO"); 3252 if (retval != 0) 3253 break; 3254 3255 retval = sbuf_printf(sb, "\t<port_name>%s</port_name>\n", 3256 port->port_name); 3257 if (retval != 0) 3258 break; 3259 3260 retval = sbuf_printf(sb, "\t<physical_port>%d</physical_port>\n", 3261 port->physical_port); 3262 if (retval != 0) 3263 break; 3264 3265 retval = sbuf_printf(sb, "\t<virtual_port>%d</virtual_port>\n", 3266 port->virtual_port); 3267 if (retval != 0) 3268 break; 3269 3270 if (port->target_devid != NULL) { 3271 sbuf_printf(sb, "\t<target>"); 3272 ctl_id_sbuf(port->target_devid, sb); 3273 sbuf_printf(sb, "</target>\n"); 3274 } 3275 3276 if (port->port_devid != NULL) { 3277 sbuf_printf(sb, "\t<port>"); 3278 ctl_id_sbuf(port->port_devid, sb); 3279 sbuf_printf(sb, "</port>\n"); 3280 } 3281 3282 if (port->port_info != NULL) { 3283 retval = port->port_info(port->onoff_arg, sb); 3284 if (retval != 0) 3285 break; 3286 } 3287 STAILQ_FOREACH(opt, &port->options, links) { 3288 retval = sbuf_printf(sb, "\t<%s>%s</%s>\n", 3289 opt->name, opt->value, opt->name); 3290 if (retval != 0) 3291 break; 3292 } 3293 3294 if (port->lun_map != NULL) { 3295 sbuf_printf(sb, "\t<lun_map>on</lun_map>\n"); 3296 for (j = 0; j < port->lun_map_size; j++) { 3297 plun = ctl_lun_map_from_port(port, j); 3298 if (plun == UINT32_MAX) 3299 continue; 3300 sbuf_printf(sb, 3301 "\t<lun id=\"%u\">%u</lun>\n", 3302 j, plun); 3303 } 3304 } 3305 3306 for (j = 0; j < CTL_MAX_INIT_PER_PORT; j++) { 3307 if (port->wwpn_iid[j].in_use == 0 || 3308 (port->wwpn_iid[j].wwpn == 0 && 3309 port->wwpn_iid[j].name == NULL)) 3310 continue; 3311 3312 if (port->wwpn_iid[j].name != NULL) 3313 retval = sbuf_printf(sb, 3314 "\t<initiator id=\"%u\">%s</initiator>\n", 3315 j, port->wwpn_iid[j].name); 3316 else 3317 retval = sbuf_printf(sb, 3318 "\t<initiator id=\"%u\">naa.%08jx</initiator>\n", 3319 j, port->wwpn_iid[j].wwpn); 3320 if (retval != 0) 3321 break; 3322 } 3323 if (retval != 0) 3324 break; 3325 3326 retval = sbuf_printf(sb, "</targ_port>\n"); 3327 if (retval != 0) 3328 break; 3329 } 3330 mtx_unlock(&softc->ctl_lock); 3331 3332 if ((retval != 0) 3333 || ((retval = sbuf_printf(sb, "</ctlportlist>\n")) != 0)) { 3334 retval = 0; 3335 sbuf_delete(sb); 3336 list->status = CTL_LUN_LIST_NEED_MORE_SPACE; 3337 snprintf(list->error_str, sizeof(list->error_str), 3338 "Out of space, %d bytes is too small", 3339 list->alloc_len); 3340 break; 3341 } 3342 3343 sbuf_finish(sb); 3344 3345 retval = copyout(sbuf_data(sb), list->lun_xml, 3346 sbuf_len(sb) + 1); 3347 3348 list->fill_len = sbuf_len(sb) + 1; 3349 list->status = CTL_LUN_LIST_OK; 3350 sbuf_delete(sb); 3351 break; 3352 } 3353 case CTL_LUN_MAP: { 3354 struct ctl_lun_map *lm = (struct ctl_lun_map *)addr; 3355 struct ctl_port *port; 3356 3357 mtx_lock(&softc->ctl_lock); 3358 if (lm->port < softc->port_min || 3359 lm->port >= softc->port_max || 3360 (port = softc->ctl_ports[lm->port]) == NULL) { 3361 mtx_unlock(&softc->ctl_lock); 3362 return (ENXIO); 3363 } 3364 if (port->status & CTL_PORT_STATUS_ONLINE) { 3365 STAILQ_FOREACH(lun, &softc->lun_list, links) { 3366 if (ctl_lun_map_to_port(port, lun->lun) == 3367 UINT32_MAX) 3368 continue; 3369 mtx_lock(&lun->lun_lock); 3370 ctl_est_ua_port(lun, lm->port, -1, 3371 CTL_UA_LUN_CHANGE); 3372 mtx_unlock(&lun->lun_lock); 3373 } 3374 } 3375 mtx_unlock(&softc->ctl_lock); // XXX: port_enable sleeps 3376 if (lm->plun != UINT32_MAX) { 3377 if (lm->lun == UINT32_MAX) 3378 retval = ctl_lun_map_unset(port, lm->plun); 3379 else if (lm->lun < CTL_MAX_LUNS && 3380 softc->ctl_luns[lm->lun] != NULL) 3381 retval = ctl_lun_map_set(port, lm->plun, lm->lun); 3382 else 3383 return (ENXIO); 3384 } else { 3385 if (lm->lun == UINT32_MAX) 3386 retval = ctl_lun_map_deinit(port); 3387 else 3388 retval = ctl_lun_map_init(port); 3389 } 3390 if (port->status & CTL_PORT_STATUS_ONLINE) 3391 ctl_isc_announce_port(port); 3392 break; 3393 } 3394 default: { 3395 /* XXX KDM should we fix this? */ 3396#if 0 3397 struct ctl_backend_driver *backend; 3398 unsigned int type; 3399 int found; 3400 3401 found = 0; 3402 3403 /* 3404 * We encode the backend type as the ioctl type for backend 3405 * ioctls. So parse it out here, and then search for a 3406 * backend of this type. 3407 */ 3408 type = _IOC_TYPE(cmd); 3409 3410 STAILQ_FOREACH(backend, &softc->be_list, links) { 3411 if (backend->type == type) { 3412 found = 1; 3413 break; 3414 } 3415 } 3416 if (found == 0) { 3417 printf("ctl: unknown ioctl command %#lx or backend " 3418 "%d\n", cmd, type); 3419 retval = EINVAL; 3420 break; 3421 } 3422 retval = backend->ioctl(dev, cmd, addr, flag, td); 3423#endif 3424 retval = ENOTTY; 3425 break; 3426 } 3427 } 3428 return (retval); 3429} 3430 3431uint32_t 3432ctl_get_initindex(struct ctl_nexus *nexus) 3433{ 3434 return (nexus->initid + (nexus->targ_port * CTL_MAX_INIT_PER_PORT)); 3435} 3436 3437int 3438ctl_lun_map_init(struct ctl_port *port) 3439{ 3440 struct ctl_softc *softc = port->ctl_softc; 3441 struct ctl_lun *lun; 3442 int size = ctl_lun_map_size; 3443 uint32_t i; 3444 3445 if (port->lun_map == NULL || port->lun_map_size < size) { 3446 port->lun_map_size = 0; 3447 free(port->lun_map, M_CTL); 3448 port->lun_map = malloc(size * sizeof(uint32_t), 3449 M_CTL, M_NOWAIT); 3450 } 3451 if (port->lun_map == NULL) 3452 return (ENOMEM); 3453 for (i = 0; i < size; i++) 3454 port->lun_map[i] = UINT32_MAX; 3455 port->lun_map_size = size; 3456 if (port->status & CTL_PORT_STATUS_ONLINE) { 3457 if (port->lun_disable != NULL) { 3458 STAILQ_FOREACH(lun, &softc->lun_list, links) 3459 port->lun_disable(port->targ_lun_arg, lun->lun); 3460 } 3461 ctl_isc_announce_port(port); 3462 } 3463 return (0); 3464} 3465 3466int 3467ctl_lun_map_deinit(struct ctl_port *port) 3468{ 3469 struct ctl_softc *softc = port->ctl_softc; 3470 struct ctl_lun *lun; 3471 3472 if (port->lun_map == NULL) 3473 return (0); 3474 port->lun_map_size = 0; 3475 free(port->lun_map, M_CTL); 3476 port->lun_map = NULL; 3477 if (port->status & CTL_PORT_STATUS_ONLINE) { 3478 if (port->lun_enable != NULL) { 3479 STAILQ_FOREACH(lun, &softc->lun_list, links) 3480 port->lun_enable(port->targ_lun_arg, lun->lun); 3481 } 3482 ctl_isc_announce_port(port); 3483 } 3484 return (0); 3485} 3486 3487int 3488ctl_lun_map_set(struct ctl_port *port, uint32_t plun, uint32_t glun) 3489{ 3490 int status; 3491 uint32_t old; 3492 3493 if (port->lun_map == NULL) { 3494 status = ctl_lun_map_init(port); 3495 if (status != 0) 3496 return (status); 3497 } 3498 if (plun >= port->lun_map_size) 3499 return (EINVAL); 3500 old = port->lun_map[plun]; 3501 port->lun_map[plun] = glun; 3502 if ((port->status & CTL_PORT_STATUS_ONLINE) && old == UINT32_MAX) { 3503 if (port->lun_enable != NULL) 3504 port->lun_enable(port->targ_lun_arg, plun); 3505 ctl_isc_announce_port(port); 3506 } 3507 return (0); 3508} 3509 3510int 3511ctl_lun_map_unset(struct ctl_port *port, uint32_t plun) 3512{ 3513 uint32_t old; 3514 3515 if (port->lun_map == NULL || plun >= port->lun_map_size) 3516 return (0); 3517 old = port->lun_map[plun]; 3518 port->lun_map[plun] = UINT32_MAX; 3519 if ((port->status & CTL_PORT_STATUS_ONLINE) && old != UINT32_MAX) { 3520 if (port->lun_disable != NULL) 3521 port->lun_disable(port->targ_lun_arg, plun); 3522 ctl_isc_announce_port(port); 3523 } 3524 return (0); 3525} 3526 3527uint32_t 3528ctl_lun_map_from_port(struct ctl_port *port, uint32_t lun_id) 3529{ 3530 3531 if (port == NULL) 3532 return (UINT32_MAX); 3533 if (port->lun_map == NULL) 3534 return (lun_id); 3535 if (lun_id > port->lun_map_size) 3536 return (UINT32_MAX); 3537 return (port->lun_map[lun_id]); 3538} 3539 3540uint32_t 3541ctl_lun_map_to_port(struct ctl_port *port, uint32_t lun_id) 3542{ 3543 uint32_t i; 3544 3545 if (port == NULL) 3546 return (UINT32_MAX); 3547 if (port->lun_map == NULL) 3548 return (lun_id); 3549 for (i = 0; i < port->lun_map_size; i++) { 3550 if (port->lun_map[i] == lun_id) 3551 return (i); 3552 } 3553 return (UINT32_MAX); 3554} 3555 3556uint32_t 3557ctl_decode_lun(uint64_t encoded) 3558{ 3559 uint8_t lun[8]; 3560 uint32_t result = 0xffffffff; 3561 3562 be64enc(lun, encoded); 3563 switch (lun[0] & RPL_LUNDATA_ATYP_MASK) { 3564 case RPL_LUNDATA_ATYP_PERIPH: 3565 if ((lun[0] & 0x3f) == 0 && lun[2] == 0 && lun[3] == 0 && 3566 lun[4] == 0 && lun[5] == 0 && lun[6] == 0 && lun[7] == 0) 3567 result = lun[1]; 3568 break; 3569 case RPL_LUNDATA_ATYP_FLAT: 3570 if (lun[2] == 0 && lun[3] == 0 && lun[4] == 0 && lun[5] == 0 && 3571 lun[6] == 0 && lun[7] == 0) 3572 result = ((lun[0] & 0x3f) << 8) + lun[1]; 3573 break; 3574 case RPL_LUNDATA_ATYP_EXTLUN: 3575 switch (lun[0] & RPL_LUNDATA_EXT_EAM_MASK) { 3576 case 0x02: 3577 switch (lun[0] & RPL_LUNDATA_EXT_LEN_MASK) { 3578 case 0x00: 3579 result = lun[1]; 3580 break; 3581 case 0x10: 3582 result = (lun[1] << 16) + (lun[2] << 8) + 3583 lun[3]; 3584 break; 3585 case 0x20: 3586 if (lun[1] == 0 && lun[6] == 0 && lun[7] == 0) 3587 result = (lun[2] << 24) + 3588 (lun[3] << 16) + (lun[4] << 8) + 3589 lun[5]; 3590 break; 3591 } 3592 break; 3593 case RPL_LUNDATA_EXT_EAM_NOT_SPEC: 3594 result = 0xffffffff; 3595 break; 3596 } 3597 break; 3598 } 3599 return (result); 3600} 3601 3602uint64_t 3603ctl_encode_lun(uint32_t decoded) 3604{ 3605 uint64_t l = decoded; 3606 3607 if (l <= 0xff) 3608 return (((uint64_t)RPL_LUNDATA_ATYP_PERIPH << 56) | (l << 48)); 3609 if (l <= 0x3fff) 3610 return (((uint64_t)RPL_LUNDATA_ATYP_FLAT << 56) | (l << 48)); 3611 if (l <= 0xffffff) 3612 return (((uint64_t)(RPL_LUNDATA_ATYP_EXTLUN | 0x12) << 56) | 3613 (l << 32)); 3614 return ((((uint64_t)RPL_LUNDATA_ATYP_EXTLUN | 0x22) << 56) | (l << 16)); 3615} 3616 3617int 3618ctl_ffz(uint32_t *mask, uint32_t first, uint32_t last) 3619{ 3620 int i; 3621 3622 for (i = first; i < last; i++) { 3623 if ((mask[i / 32] & (1 << (i % 32))) == 0) 3624 return (i); 3625 } 3626 return (-1); 3627} 3628 3629int 3630ctl_set_mask(uint32_t *mask, uint32_t bit) 3631{ 3632 uint32_t chunk, piece; 3633 3634 chunk = bit >> 5; 3635 piece = bit % (sizeof(uint32_t) * 8); 3636 3637 if ((mask[chunk] & (1 << piece)) != 0) 3638 return (-1); 3639 else 3640 mask[chunk] |= (1 << piece); 3641 3642 return (0); 3643} 3644 3645int 3646ctl_clear_mask(uint32_t *mask, uint32_t bit) 3647{ 3648 uint32_t chunk, piece; 3649 3650 chunk = bit >> 5; 3651 piece = bit % (sizeof(uint32_t) * 8); 3652 3653 if ((mask[chunk] & (1 << piece)) == 0) 3654 return (-1); 3655 else 3656 mask[chunk] &= ~(1 << piece); 3657 3658 return (0); 3659} 3660 3661int 3662ctl_is_set(uint32_t *mask, uint32_t bit) 3663{ 3664 uint32_t chunk, piece; 3665 3666 chunk = bit >> 5; 3667 piece = bit % (sizeof(uint32_t) * 8); 3668 3669 if ((mask[chunk] & (1 << piece)) == 0) 3670 return (0); 3671 else 3672 return (1); 3673} 3674 3675static uint64_t 3676ctl_get_prkey(struct ctl_lun *lun, uint32_t residx) 3677{ 3678 uint64_t *t; 3679 3680 t = lun->pr_keys[residx/CTL_MAX_INIT_PER_PORT]; 3681 if (t == NULL) 3682 return (0); 3683 return (t[residx % CTL_MAX_INIT_PER_PORT]); 3684} 3685 3686static void 3687ctl_clr_prkey(struct ctl_lun *lun, uint32_t residx) 3688{ 3689 uint64_t *t; 3690 3691 t = lun->pr_keys[residx/CTL_MAX_INIT_PER_PORT]; 3692 if (t == NULL) 3693 return; 3694 t[residx % CTL_MAX_INIT_PER_PORT] = 0; 3695} 3696 3697static void 3698ctl_alloc_prkey(struct ctl_lun *lun, uint32_t residx) 3699{ 3700 uint64_t *p; 3701 u_int i; 3702 3703 i = residx/CTL_MAX_INIT_PER_PORT; 3704 if (lun->pr_keys[i] != NULL) 3705 return; 3706 mtx_unlock(&lun->lun_lock); 3707 p = malloc(sizeof(uint64_t) * CTL_MAX_INIT_PER_PORT, M_CTL, 3708 M_WAITOK | M_ZERO); 3709 mtx_lock(&lun->lun_lock); 3710 if (lun->pr_keys[i] == NULL) 3711 lun->pr_keys[i] = p; 3712 else 3713 free(p, M_CTL); 3714} 3715 3716static void 3717ctl_set_prkey(struct ctl_lun *lun, uint32_t residx, uint64_t key) 3718{ 3719 uint64_t *t; 3720 3721 t = lun->pr_keys[residx/CTL_MAX_INIT_PER_PORT]; 3722 KASSERT(t != NULL, ("prkey %d is not allocated", residx)); 3723 t[residx % CTL_MAX_INIT_PER_PORT] = key; 3724} 3725 3726/* 3727 * ctl_softc, pool_name, total_ctl_io are passed in. 3728 * npool is passed out. 3729 */ 3730int 3731ctl_pool_create(struct ctl_softc *ctl_softc, const char *pool_name, 3732 uint32_t total_ctl_io, void **npool) 3733{ 3734 struct ctl_io_pool *pool; 3735 3736 pool = (struct ctl_io_pool *)malloc(sizeof(*pool), M_CTL, 3737 M_NOWAIT | M_ZERO); 3738 if (pool == NULL) 3739 return (ENOMEM); 3740 3741 snprintf(pool->name, sizeof(pool->name), "CTL IO %s", pool_name); 3742 pool->ctl_softc = ctl_softc; 3743#ifdef IO_POOLS 3744 pool->zone = uma_zsecond_create(pool->name, NULL, 3745 NULL, NULL, NULL, ctl_softc->io_zone); 3746 /* uma_prealloc(pool->zone, total_ctl_io); */ 3747#else 3748 pool->zone = ctl_softc->io_zone; 3749#endif 3750 3751 *npool = pool; 3752 return (0); 3753} 3754 3755void 3756ctl_pool_free(struct ctl_io_pool *pool) 3757{ 3758 3759 if (pool == NULL) 3760 return; 3761 3762#ifdef IO_POOLS 3763 uma_zdestroy(pool->zone); 3764#endif 3765 free(pool, M_CTL); 3766} 3767 3768union ctl_io * 3769ctl_alloc_io(void *pool_ref) 3770{ 3771 struct ctl_io_pool *pool = (struct ctl_io_pool *)pool_ref; 3772 union ctl_io *io; 3773 3774 io = uma_zalloc(pool->zone, M_WAITOK); 3775 if (io != NULL) { 3776 io->io_hdr.pool = pool_ref; 3777 CTL_SOFTC(io) = pool->ctl_softc; 3778 } 3779 return (io); 3780} 3781 3782union ctl_io * 3783ctl_alloc_io_nowait(void *pool_ref) 3784{ 3785 struct ctl_io_pool *pool = (struct ctl_io_pool *)pool_ref; 3786 union ctl_io *io; 3787 3788 io = uma_zalloc(pool->zone, M_NOWAIT); 3789 if (io != NULL) { 3790 io->io_hdr.pool = pool_ref; 3791 CTL_SOFTC(io) = pool->ctl_softc; 3792 } 3793 return (io); 3794} 3795 3796void 3797ctl_free_io(union ctl_io *io) 3798{ 3799 struct ctl_io_pool *pool; 3800 3801 if (io == NULL) 3802 return; 3803 3804 pool = (struct ctl_io_pool *)io->io_hdr.pool; 3805 uma_zfree(pool->zone, io); 3806} 3807 3808void 3809ctl_zero_io(union ctl_io *io) 3810{ 3811 struct ctl_io_pool *pool; 3812 3813 if (io == NULL) 3814 return; 3815 3816 /* 3817 * May need to preserve linked list pointers at some point too. 3818 */ 3819 pool = io->io_hdr.pool; 3820 memset(io, 0, sizeof(*io)); 3821 io->io_hdr.pool = pool; 3822 CTL_SOFTC(io) = pool->ctl_softc; 3823} 3824 3825int 3826ctl_expand_number(const char *buf, uint64_t *num) 3827{ 3828 char *endptr; 3829 uint64_t number; 3830 unsigned shift; 3831 3832 number = strtoq(buf, &endptr, 0); 3833 3834 switch (tolower((unsigned char)*endptr)) { 3835 case 'e': 3836 shift = 60; 3837 break; 3838 case 'p': 3839 shift = 50; 3840 break; 3841 case 't': 3842 shift = 40; 3843 break; 3844 case 'g': 3845 shift = 30; 3846 break; 3847 case 'm': 3848 shift = 20; 3849 break; 3850 case 'k': 3851 shift = 10; 3852 break; 3853 case 'b': 3854 case '\0': /* No unit. */ 3855 *num = number; 3856 return (0); 3857 default: 3858 /* Unrecognized unit. */ 3859 return (-1); 3860 } 3861 3862 if ((number << shift) >> shift != number) { 3863 /* Overflow */ 3864 return (-1); 3865 } 3866 *num = number << shift; 3867 return (0); 3868} 3869 3870 3871/* 3872 * This routine could be used in the future to load default and/or saved 3873 * mode page parameters for a particuar lun. 3874 */ 3875static int 3876ctl_init_page_index(struct ctl_lun *lun) 3877{ 3878 int i, page_code; 3879 struct ctl_page_index *page_index; 3880 const char *value; 3881 uint64_t ival; 3882 3883 memcpy(&lun->mode_pages.index, page_index_template, 3884 sizeof(page_index_template)); 3885 3886 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 3887 3888 page_index = &lun->mode_pages.index[i]; 3889 if (lun->be_lun->lun_type == T_DIRECT && 3890 (page_index->page_flags & CTL_PAGE_FLAG_DIRECT) == 0) 3891 continue; 3892 if (lun->be_lun->lun_type == T_PROCESSOR && 3893 (page_index->page_flags & CTL_PAGE_FLAG_PROC) == 0) 3894 continue; 3895 if (lun->be_lun->lun_type == T_CDROM && 3896 (page_index->page_flags & CTL_PAGE_FLAG_CDROM) == 0) 3897 continue; 3898 3899 page_code = page_index->page_code & SMPH_PC_MASK; 3900 switch (page_code) { 3901 case SMS_RW_ERROR_RECOVERY_PAGE: { 3902 KASSERT(page_index->subpage == SMS_SUBPAGE_PAGE_0, 3903 ("subpage %#x for page %#x is incorrect!", 3904 page_index->subpage, page_code)); 3905 memcpy(&lun->mode_pages.rw_er_page[CTL_PAGE_CURRENT], 3906 &rw_er_page_default, 3907 sizeof(rw_er_page_default)); 3908 memcpy(&lun->mode_pages.rw_er_page[CTL_PAGE_CHANGEABLE], 3909 &rw_er_page_changeable, 3910 sizeof(rw_er_page_changeable)); 3911 memcpy(&lun->mode_pages.rw_er_page[CTL_PAGE_DEFAULT], 3912 &rw_er_page_default, 3913 sizeof(rw_er_page_default)); 3914 memcpy(&lun->mode_pages.rw_er_page[CTL_PAGE_SAVED], 3915 &rw_er_page_default, 3916 sizeof(rw_er_page_default)); 3917 page_index->page_data = 3918 (uint8_t *)lun->mode_pages.rw_er_page; 3919 break; 3920 } 3921 case SMS_FORMAT_DEVICE_PAGE: { 3922 struct scsi_format_page *format_page; 3923 3924 KASSERT(page_index->subpage == SMS_SUBPAGE_PAGE_0, 3925 ("subpage %#x for page %#x is incorrect!", 3926 page_index->subpage, page_code)); 3927 3928 /* 3929 * Sectors per track are set above. Bytes per 3930 * sector need to be set here on a per-LUN basis. 3931 */ 3932 memcpy(&lun->mode_pages.format_page[CTL_PAGE_CURRENT], 3933 &format_page_default, 3934 sizeof(format_page_default)); 3935 memcpy(&lun->mode_pages.format_page[ 3936 CTL_PAGE_CHANGEABLE], &format_page_changeable, 3937 sizeof(format_page_changeable)); 3938 memcpy(&lun->mode_pages.format_page[CTL_PAGE_DEFAULT], 3939 &format_page_default, 3940 sizeof(format_page_default)); 3941 memcpy(&lun->mode_pages.format_page[CTL_PAGE_SAVED], 3942 &format_page_default, 3943 sizeof(format_page_default)); 3944 3945 format_page = &lun->mode_pages.format_page[ 3946 CTL_PAGE_CURRENT]; 3947 scsi_ulto2b(lun->be_lun->blocksize, 3948 format_page->bytes_per_sector); 3949 3950 format_page = &lun->mode_pages.format_page[ 3951 CTL_PAGE_DEFAULT]; 3952 scsi_ulto2b(lun->be_lun->blocksize, 3953 format_page->bytes_per_sector); 3954 3955 format_page = &lun->mode_pages.format_page[ 3956 CTL_PAGE_SAVED]; 3957 scsi_ulto2b(lun->be_lun->blocksize, 3958 format_page->bytes_per_sector); 3959 3960 page_index->page_data = 3961 (uint8_t *)lun->mode_pages.format_page; 3962 break; 3963 } 3964 case SMS_RIGID_DISK_PAGE: { 3965 struct scsi_rigid_disk_page *rigid_disk_page; 3966 uint32_t sectors_per_cylinder; 3967 uint64_t cylinders; 3968#ifndef __XSCALE__ 3969 int shift; 3970#endif /* !__XSCALE__ */ 3971 3972 KASSERT(page_index->subpage == SMS_SUBPAGE_PAGE_0, 3973 ("subpage %#x for page %#x is incorrect!", 3974 page_index->subpage, page_code)); 3975 3976 /* 3977 * Rotation rate and sectors per track are set 3978 * above. We calculate the cylinders here based on 3979 * capacity. Due to the number of heads and 3980 * sectors per track we're using, smaller arrays 3981 * may turn out to have 0 cylinders. Linux and 3982 * FreeBSD don't pay attention to these mode pages 3983 * to figure out capacity, but Solaris does. It 3984 * seems to deal with 0 cylinders just fine, and 3985 * works out a fake geometry based on the capacity. 3986 */ 3987 memcpy(&lun->mode_pages.rigid_disk_page[ 3988 CTL_PAGE_DEFAULT], &rigid_disk_page_default, 3989 sizeof(rigid_disk_page_default)); 3990 memcpy(&lun->mode_pages.rigid_disk_page[ 3991 CTL_PAGE_CHANGEABLE],&rigid_disk_page_changeable, 3992 sizeof(rigid_disk_page_changeable)); 3993 3994 sectors_per_cylinder = CTL_DEFAULT_SECTORS_PER_TRACK * 3995 CTL_DEFAULT_HEADS; 3996 3997 /* 3998 * The divide method here will be more accurate, 3999 * probably, but results in floating point being 4000 * used in the kernel on i386 (__udivdi3()). On the 4001 * XScale, though, __udivdi3() is implemented in 4002 * software. 4003 * 4004 * The shift method for cylinder calculation is 4005 * accurate if sectors_per_cylinder is a power of 4006 * 2. Otherwise it might be slightly off -- you 4007 * might have a bit of a truncation problem. 4008 */ 4009#ifdef __XSCALE__ 4010 cylinders = (lun->be_lun->maxlba + 1) / 4011 sectors_per_cylinder; 4012#else 4013 for (shift = 31; shift > 0; shift--) { 4014 if (sectors_per_cylinder & (1 << shift)) 4015 break; 4016 } 4017 cylinders = (lun->be_lun->maxlba + 1) >> shift; 4018#endif 4019 4020 /* 4021 * We've basically got 3 bytes, or 24 bits for the 4022 * cylinder size in the mode page. If we're over, 4023 * just round down to 2^24. 4024 */ 4025 if (cylinders > 0xffffff) 4026 cylinders = 0xffffff; 4027 4028 rigid_disk_page = &lun->mode_pages.rigid_disk_page[ 4029 CTL_PAGE_DEFAULT]; 4030 scsi_ulto3b(cylinders, rigid_disk_page->cylinders); 4031 4032 if ((value = ctl_get_opt(&lun->be_lun->options, 4033 "rpm")) != NULL) { 4034 scsi_ulto2b(strtol(value, NULL, 0), 4035 rigid_disk_page->rotation_rate); 4036 } 4037 4038 memcpy(&lun->mode_pages.rigid_disk_page[CTL_PAGE_CURRENT], 4039 &lun->mode_pages.rigid_disk_page[CTL_PAGE_DEFAULT], 4040 sizeof(rigid_disk_page_default)); 4041 memcpy(&lun->mode_pages.rigid_disk_page[CTL_PAGE_SAVED], 4042 &lun->mode_pages.rigid_disk_page[CTL_PAGE_DEFAULT], 4043 sizeof(rigid_disk_page_default)); 4044 4045 page_index->page_data = 4046 (uint8_t *)lun->mode_pages.rigid_disk_page; 4047 break; 4048 } 4049 case SMS_VERIFY_ERROR_RECOVERY_PAGE: { 4050 KASSERT(page_index->subpage == SMS_SUBPAGE_PAGE_0, 4051 ("subpage %#x for page %#x is incorrect!", 4052 page_index->subpage, page_code)); 4053 memcpy(&lun->mode_pages.verify_er_page[CTL_PAGE_CURRENT], 4054 &verify_er_page_default, 4055 sizeof(verify_er_page_default)); 4056 memcpy(&lun->mode_pages.verify_er_page[CTL_PAGE_CHANGEABLE], 4057 &verify_er_page_changeable, 4058 sizeof(verify_er_page_changeable)); 4059 memcpy(&lun->mode_pages.verify_er_page[CTL_PAGE_DEFAULT], 4060 &verify_er_page_default, 4061 sizeof(verify_er_page_default)); 4062 memcpy(&lun->mode_pages.verify_er_page[CTL_PAGE_SAVED], 4063 &verify_er_page_default, 4064 sizeof(verify_er_page_default)); 4065 page_index->page_data = 4066 (uint8_t *)lun->mode_pages.verify_er_page; 4067 break; 4068 } 4069 case SMS_CACHING_PAGE: { 4070 struct scsi_caching_page *caching_page; 4071 4072 KASSERT(page_index->subpage == SMS_SUBPAGE_PAGE_0, 4073 ("subpage %#x for page %#x is incorrect!", 4074 page_index->subpage, page_code)); 4075 memcpy(&lun->mode_pages.caching_page[CTL_PAGE_DEFAULT], 4076 &caching_page_default, 4077 sizeof(caching_page_default)); 4078 memcpy(&lun->mode_pages.caching_page[ 4079 CTL_PAGE_CHANGEABLE], &caching_page_changeable, 4080 sizeof(caching_page_changeable)); 4081 memcpy(&lun->mode_pages.caching_page[CTL_PAGE_SAVED], 4082 &caching_page_default, 4083 sizeof(caching_page_default)); 4084 caching_page = &lun->mode_pages.caching_page[ 4085 CTL_PAGE_SAVED]; 4086 value = ctl_get_opt(&lun->be_lun->options, "writecache"); 4087 if (value != NULL && strcmp(value, "off") == 0) 4088 caching_page->flags1 &= ~SCP_WCE; 4089 value = ctl_get_opt(&lun->be_lun->options, "readcache"); 4090 if (value != NULL && strcmp(value, "off") == 0) 4091 caching_page->flags1 |= SCP_RCD; 4092 memcpy(&lun->mode_pages.caching_page[CTL_PAGE_CURRENT], 4093 &lun->mode_pages.caching_page[CTL_PAGE_SAVED], 4094 sizeof(caching_page_default)); 4095 page_index->page_data = 4096 (uint8_t *)lun->mode_pages.caching_page; 4097 break; 4098 } 4099 case SMS_CONTROL_MODE_PAGE: { 4100 switch (page_index->subpage) { 4101 case SMS_SUBPAGE_PAGE_0: { 4102 struct scsi_control_page *control_page; 4103 4104 memcpy(&lun->mode_pages.control_page[ 4105 CTL_PAGE_DEFAULT], 4106 &control_page_default, 4107 sizeof(control_page_default)); 4108 memcpy(&lun->mode_pages.control_page[ 4109 CTL_PAGE_CHANGEABLE], 4110 &control_page_changeable, 4111 sizeof(control_page_changeable)); 4112 memcpy(&lun->mode_pages.control_page[ 4113 CTL_PAGE_SAVED], 4114 &control_page_default, 4115 sizeof(control_page_default)); 4116 control_page = &lun->mode_pages.control_page[ 4117 CTL_PAGE_SAVED]; 4118 value = ctl_get_opt(&lun->be_lun->options, 4119 "reordering"); 4120 if (value != NULL && 4121 strcmp(value, "unrestricted") == 0) { 4122 control_page->queue_flags &= 4123 ~SCP_QUEUE_ALG_MASK; 4124 control_page->queue_flags |= 4125 SCP_QUEUE_ALG_UNRESTRICTED; 4126 } 4127 memcpy(&lun->mode_pages.control_page[ 4128 CTL_PAGE_CURRENT], 4129 &lun->mode_pages.control_page[ 4130 CTL_PAGE_SAVED], 4131 sizeof(control_page_default)); 4132 page_index->page_data = 4133 (uint8_t *)lun->mode_pages.control_page; 4134 break; 4135 } 4136 case 0x01: 4137 memcpy(&lun->mode_pages.control_ext_page[ 4138 CTL_PAGE_DEFAULT], 4139 &control_ext_page_default, 4140 sizeof(control_ext_page_default)); 4141 memcpy(&lun->mode_pages.control_ext_page[ 4142 CTL_PAGE_CHANGEABLE], 4143 &control_ext_page_changeable, 4144 sizeof(control_ext_page_changeable)); 4145 memcpy(&lun->mode_pages.control_ext_page[ 4146 CTL_PAGE_SAVED], 4147 &control_ext_page_default, 4148 sizeof(control_ext_page_default)); 4149 memcpy(&lun->mode_pages.control_ext_page[ 4150 CTL_PAGE_CURRENT], 4151 &lun->mode_pages.control_ext_page[ 4152 CTL_PAGE_SAVED], 4153 sizeof(control_ext_page_default)); 4154 page_index->page_data = 4155 (uint8_t *)lun->mode_pages.control_ext_page; 4156 break; 4157 default: 4158 panic("subpage %#x for page %#x is incorrect!", 4159 page_index->subpage, page_code); 4160 } 4161 break; 4162 } 4163 case SMS_INFO_EXCEPTIONS_PAGE: { 4164 switch (page_index->subpage) { 4165 case SMS_SUBPAGE_PAGE_0: 4166 memcpy(&lun->mode_pages.ie_page[CTL_PAGE_CURRENT], 4167 &ie_page_default, 4168 sizeof(ie_page_default)); 4169 memcpy(&lun->mode_pages.ie_page[ 4170 CTL_PAGE_CHANGEABLE], &ie_page_changeable, 4171 sizeof(ie_page_changeable)); 4172 memcpy(&lun->mode_pages.ie_page[CTL_PAGE_DEFAULT], 4173 &ie_page_default, 4174 sizeof(ie_page_default)); 4175 memcpy(&lun->mode_pages.ie_page[CTL_PAGE_SAVED], 4176 &ie_page_default, 4177 sizeof(ie_page_default)); 4178 page_index->page_data = 4179 (uint8_t *)lun->mode_pages.ie_page; 4180 break; 4181 case 0x02: { 4182 struct ctl_logical_block_provisioning_page *page; 4183 4184 memcpy(&lun->mode_pages.lbp_page[CTL_PAGE_DEFAULT], 4185 &lbp_page_default, 4186 sizeof(lbp_page_default)); 4187 memcpy(&lun->mode_pages.lbp_page[ 4188 CTL_PAGE_CHANGEABLE], &lbp_page_changeable, 4189 sizeof(lbp_page_changeable)); 4190 memcpy(&lun->mode_pages.lbp_page[CTL_PAGE_SAVED], 4191 &lbp_page_default, 4192 sizeof(lbp_page_default)); 4193 page = &lun->mode_pages.lbp_page[CTL_PAGE_SAVED]; 4194 value = ctl_get_opt(&lun->be_lun->options, 4195 "avail-threshold"); 4196 if (value != NULL && 4197 ctl_expand_number(value, &ival) == 0) { 4198 page->descr[0].flags |= SLBPPD_ENABLED | 4199 SLBPPD_ARMING_DEC; 4200 if (lun->be_lun->blocksize) 4201 ival /= lun->be_lun->blocksize; 4202 else 4203 ival /= 512; 4204 scsi_ulto4b(ival >> CTL_LBP_EXPONENT, 4205 page->descr[0].count); 4206 } 4207 value = ctl_get_opt(&lun->be_lun->options, 4208 "used-threshold"); 4209 if (value != NULL && 4210 ctl_expand_number(value, &ival) == 0) { 4211 page->descr[1].flags |= SLBPPD_ENABLED | 4212 SLBPPD_ARMING_INC; 4213 if (lun->be_lun->blocksize) 4214 ival /= lun->be_lun->blocksize; 4215 else 4216 ival /= 512; 4217 scsi_ulto4b(ival >> CTL_LBP_EXPONENT, 4218 page->descr[1].count); 4219 } 4220 value = ctl_get_opt(&lun->be_lun->options, 4221 "pool-avail-threshold"); 4222 if (value != NULL && 4223 ctl_expand_number(value, &ival) == 0) { 4224 page->descr[2].flags |= SLBPPD_ENABLED | 4225 SLBPPD_ARMING_DEC; 4226 if (lun->be_lun->blocksize) 4227 ival /= lun->be_lun->blocksize; 4228 else 4229 ival /= 512; 4230 scsi_ulto4b(ival >> CTL_LBP_EXPONENT, 4231 page->descr[2].count); 4232 } 4233 value = ctl_get_opt(&lun->be_lun->options, 4234 "pool-used-threshold"); 4235 if (value != NULL && 4236 ctl_expand_number(value, &ival) == 0) { 4237 page->descr[3].flags |= SLBPPD_ENABLED | 4238 SLBPPD_ARMING_INC; 4239 if (lun->be_lun->blocksize) 4240 ival /= lun->be_lun->blocksize; 4241 else 4242 ival /= 512; 4243 scsi_ulto4b(ival >> CTL_LBP_EXPONENT, 4244 page->descr[3].count); 4245 } 4246 memcpy(&lun->mode_pages.lbp_page[CTL_PAGE_CURRENT], 4247 &lun->mode_pages.lbp_page[CTL_PAGE_SAVED], 4248 sizeof(lbp_page_default)); 4249 page_index->page_data = 4250 (uint8_t *)lun->mode_pages.lbp_page; 4251 break; 4252 } 4253 default: 4254 panic("subpage %#x for page %#x is incorrect!", 4255 page_index->subpage, page_code); 4256 } 4257 break; 4258 } 4259 case SMS_CDDVD_CAPS_PAGE:{ 4260 KASSERT(page_index->subpage == SMS_SUBPAGE_PAGE_0, 4261 ("subpage %#x for page %#x is incorrect!", 4262 page_index->subpage, page_code)); 4263 memcpy(&lun->mode_pages.cddvd_page[CTL_PAGE_DEFAULT], 4264 &cddvd_page_default, 4265 sizeof(cddvd_page_default)); 4266 memcpy(&lun->mode_pages.cddvd_page[ 4267 CTL_PAGE_CHANGEABLE], &cddvd_page_changeable, 4268 sizeof(cddvd_page_changeable)); 4269 memcpy(&lun->mode_pages.cddvd_page[CTL_PAGE_SAVED], 4270 &cddvd_page_default, 4271 sizeof(cddvd_page_default)); 4272 memcpy(&lun->mode_pages.cddvd_page[CTL_PAGE_CURRENT], 4273 &lun->mode_pages.cddvd_page[CTL_PAGE_SAVED], 4274 sizeof(cddvd_page_default)); 4275 page_index->page_data = 4276 (uint8_t *)lun->mode_pages.cddvd_page; 4277 break; 4278 } 4279 default: 4280 panic("invalid page code value %#x", page_code); 4281 } 4282 } 4283 4284 return (CTL_RETVAL_COMPLETE); 4285} 4286 4287static int 4288ctl_init_log_page_index(struct ctl_lun *lun) 4289{ 4290 struct ctl_page_index *page_index; 4291 int i, j, k, prev; 4292 4293 memcpy(&lun->log_pages.index, log_page_index_template, 4294 sizeof(log_page_index_template)); 4295 4296 prev = -1; 4297 for (i = 0, j = 0, k = 0; i < CTL_NUM_LOG_PAGES; i++) { 4298 4299 page_index = &lun->log_pages.index[i]; 4300 if (lun->be_lun->lun_type == T_DIRECT && 4301 (page_index->page_flags & CTL_PAGE_FLAG_DIRECT) == 0) 4302 continue; 4303 if (lun->be_lun->lun_type == T_PROCESSOR && 4304 (page_index->page_flags & CTL_PAGE_FLAG_PROC) == 0) 4305 continue; 4306 if (lun->be_lun->lun_type == T_CDROM && 4307 (page_index->page_flags & CTL_PAGE_FLAG_CDROM) == 0) 4308 continue; 4309 4310 if (page_index->page_code == SLS_LOGICAL_BLOCK_PROVISIONING && 4311 lun->backend->lun_attr == NULL) 4312 continue; 4313 4314 if (page_index->page_code != prev) { 4315 lun->log_pages.pages_page[j] = page_index->page_code; 4316 prev = page_index->page_code; 4317 j++; 4318 } 4319 lun->log_pages.subpages_page[k*2] = page_index->page_code; 4320 lun->log_pages.subpages_page[k*2+1] = page_index->subpage; 4321 k++; 4322 } 4323 lun->log_pages.index[0].page_data = &lun->log_pages.pages_page[0]; 4324 lun->log_pages.index[0].page_len = j; 4325 lun->log_pages.index[1].page_data = &lun->log_pages.subpages_page[0]; 4326 lun->log_pages.index[1].page_len = k * 2; 4327 lun->log_pages.index[2].page_data = &lun->log_pages.lbp_page[0]; 4328 lun->log_pages.index[2].page_len = 12*CTL_NUM_LBP_PARAMS; 4329 lun->log_pages.index[3].page_data = (uint8_t *)&lun->log_pages.stat_page; 4330 lun->log_pages.index[3].page_len = sizeof(lun->log_pages.stat_page); 4331 lun->log_pages.index[4].page_data = (uint8_t *)&lun->log_pages.ie_page; 4332 lun->log_pages.index[4].page_len = sizeof(lun->log_pages.ie_page); 4333 4334 return (CTL_RETVAL_COMPLETE); 4335} 4336 4337static int 4338hex2bin(const char *str, uint8_t *buf, int buf_size) 4339{ 4340 int i; 4341 u_char c; 4342 4343 memset(buf, 0, buf_size); 4344 while (isspace(str[0])) 4345 str++; 4346 if (str[0] == '0' && (str[1] == 'x' || str[1] == 'X')) 4347 str += 2; 4348 buf_size *= 2; 4349 for (i = 0; str[i] != 0 && i < buf_size; i++) { 4350 while (str[i] == '-') /* Skip dashes in UUIDs. */ 4351 str++; 4352 c = str[i]; 4353 if (isdigit(c)) 4354 c -= '0'; 4355 else if (isalpha(c)) 4356 c -= isupper(c) ? 'A' - 10 : 'a' - 10; 4357 else 4358 break; 4359 if (c >= 16) 4360 break; 4361 if ((i & 1) == 0) 4362 buf[i / 2] |= (c << 4); 4363 else 4364 buf[i / 2] |= c; 4365 } 4366 return ((i + 1) / 2); 4367} 4368 4369/* 4370 * LUN allocation. 4371 * 4372 * Requirements: 4373 * - caller allocates and zeros LUN storage, or passes in a NULL LUN if he 4374 * wants us to allocate the LUN and he can block. 4375 * - ctl_softc is always set 4376 * - be_lun is set if the LUN has a backend (needed for disk LUNs) 4377 * 4378 * Returns 0 for success, non-zero (errno) for failure. 4379 */ 4380static int 4381ctl_alloc_lun(struct ctl_softc *ctl_softc, struct ctl_lun *ctl_lun, 4382 struct ctl_be_lun *const be_lun) 4383{ 4384 struct ctl_lun *nlun, *lun; 4385 struct scsi_vpd_id_descriptor *desc; 4386 struct scsi_vpd_id_t10 *t10id; 4387 const char *eui, *naa, *scsiname, *uuid, *vendor, *value; 4388 int lun_number, i, lun_malloced; 4389 int devidlen, idlen1, idlen2 = 0, len; 4390 4391 if (be_lun == NULL) 4392 return (EINVAL); 4393 4394 /* 4395 * We currently only support Direct Access or Processor LUN types. 4396 */ 4397 switch (be_lun->lun_type) { 4398 case T_DIRECT: 4399 case T_PROCESSOR: 4400 case T_CDROM: 4401 break; 4402 case T_SEQUENTIAL: 4403 case T_CHANGER: 4404 default: 4405 be_lun->lun_config_status(be_lun->be_lun, 4406 CTL_LUN_CONFIG_FAILURE); 4407 break; 4408 } 4409 if (ctl_lun == NULL) { 4410 lun = malloc(sizeof(*lun), M_CTL, M_WAITOK); 4411 lun_malloced = 1; 4412 } else { 4413 lun_malloced = 0; 4414 lun = ctl_lun; 4415 } 4416 4417 memset(lun, 0, sizeof(*lun)); 4418 if (lun_malloced) 4419 lun->flags = CTL_LUN_MALLOCED; 4420 4421 /* Generate LUN ID. */ 4422 devidlen = max(CTL_DEVID_MIN_LEN, 4423 strnlen(be_lun->device_id, CTL_DEVID_LEN)); 4424 idlen1 = sizeof(*t10id) + devidlen; 4425 len = sizeof(struct scsi_vpd_id_descriptor) + idlen1; 4426 scsiname = ctl_get_opt(&be_lun->options, "scsiname"); 4427 if (scsiname != NULL) { 4428 idlen2 = roundup2(strlen(scsiname) + 1, 4); 4429 len += sizeof(struct scsi_vpd_id_descriptor) + idlen2; 4430 } 4431 eui = ctl_get_opt(&be_lun->options, "eui"); 4432 if (eui != NULL) { 4433 len += sizeof(struct scsi_vpd_id_descriptor) + 16; 4434 } 4435 naa = ctl_get_opt(&be_lun->options, "naa"); 4436 if (naa != NULL) { 4437 len += sizeof(struct scsi_vpd_id_descriptor) + 16; 4438 } 4439 uuid = ctl_get_opt(&be_lun->options, "uuid"); 4440 if (uuid != NULL) { 4441 len += sizeof(struct scsi_vpd_id_descriptor) + 18; 4442 } 4443 lun->lun_devid = malloc(sizeof(struct ctl_devid) + len, 4444 M_CTL, M_WAITOK | M_ZERO); 4445 desc = (struct scsi_vpd_id_descriptor *)lun->lun_devid->data; 4446 desc->proto_codeset = SVPD_ID_CODESET_ASCII; 4447 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | SVPD_ID_TYPE_T10; 4448 desc->length = idlen1; 4449 t10id = (struct scsi_vpd_id_t10 *)&desc->identifier[0]; 4450 memset(t10id->vendor, ' ', sizeof(t10id->vendor)); 4451 if ((vendor = ctl_get_opt(&be_lun->options, "vendor")) == NULL) { 4452 strncpy((char *)t10id->vendor, CTL_VENDOR, sizeof(t10id->vendor)); 4453 } else { 4454 strncpy(t10id->vendor, vendor, 4455 min(sizeof(t10id->vendor), strlen(vendor))); 4456 } 4457 strncpy((char *)t10id->vendor_spec_id, 4458 (char *)be_lun->device_id, devidlen); 4459 if (scsiname != NULL) { 4460 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 4461 desc->length); 4462 desc->proto_codeset = SVPD_ID_CODESET_UTF8; 4463 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | 4464 SVPD_ID_TYPE_SCSI_NAME; 4465 desc->length = idlen2; 4466 strlcpy(desc->identifier, scsiname, idlen2); 4467 } 4468 if (eui != NULL) { 4469 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 4470 desc->length); 4471 desc->proto_codeset = SVPD_ID_CODESET_BINARY; 4472 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | 4473 SVPD_ID_TYPE_EUI64; 4474 desc->length = hex2bin(eui, desc->identifier, 16); 4475 desc->length = desc->length > 12 ? 16 : 4476 (desc->length > 8 ? 12 : 8); 4477 len -= 16 - desc->length; 4478 } 4479 if (naa != NULL) { 4480 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 4481 desc->length); 4482 desc->proto_codeset = SVPD_ID_CODESET_BINARY; 4483 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | 4484 SVPD_ID_TYPE_NAA; 4485 desc->length = hex2bin(naa, desc->identifier, 16); 4486 desc->length = desc->length > 8 ? 16 : 8; 4487 len -= 16 - desc->length; 4488 } 4489 if (uuid != NULL) { 4490 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 4491 desc->length); 4492 desc->proto_codeset = SVPD_ID_CODESET_BINARY; 4493 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | 4494 SVPD_ID_TYPE_UUID; 4495 desc->identifier[0] = 0x10; 4496 hex2bin(uuid, &desc->identifier[2], 16); 4497 desc->length = 18; 4498 } 4499 lun->lun_devid->len = len; 4500 4501 mtx_lock(&ctl_softc->ctl_lock); 4502 /* 4503 * See if the caller requested a particular LUN number. If so, see 4504 * if it is available. Otherwise, allocate the first available LUN. 4505 */ 4506 if (be_lun->flags & CTL_LUN_FLAG_ID_REQ) { 4507 if ((be_lun->req_lun_id > (CTL_MAX_LUNS - 1)) 4508 || (ctl_is_set(ctl_softc->ctl_lun_mask, be_lun->req_lun_id))) { 4509 mtx_unlock(&ctl_softc->ctl_lock); 4510 if (be_lun->req_lun_id > (CTL_MAX_LUNS - 1)) { 4511 printf("ctl: requested LUN ID %d is higher " 4512 "than CTL_MAX_LUNS - 1 (%d)\n", 4513 be_lun->req_lun_id, CTL_MAX_LUNS - 1); 4514 } else { 4515 /* 4516 * XXX KDM return an error, or just assign 4517 * another LUN ID in this case?? 4518 */ 4519 printf("ctl: requested LUN ID %d is already " 4520 "in use\n", be_lun->req_lun_id); 4521 } 4522 if (lun->flags & CTL_LUN_MALLOCED) 4523 free(lun, M_CTL); 4524 be_lun->lun_config_status(be_lun->be_lun, 4525 CTL_LUN_CONFIG_FAILURE); 4526 return (ENOSPC); 4527 } 4528 lun_number = be_lun->req_lun_id; 4529 } else { 4530 lun_number = ctl_ffz(ctl_softc->ctl_lun_mask, 0, CTL_MAX_LUNS); 4531 if (lun_number == -1) { 4532 mtx_unlock(&ctl_softc->ctl_lock); 4533 printf("ctl: can't allocate LUN, out of LUNs\n"); 4534 if (lun->flags & CTL_LUN_MALLOCED) 4535 free(lun, M_CTL); 4536 be_lun->lun_config_status(be_lun->be_lun, 4537 CTL_LUN_CONFIG_FAILURE); 4538 return (ENOSPC); 4539 } 4540 } 4541 ctl_set_mask(ctl_softc->ctl_lun_mask, lun_number); 4542 4543 mtx_init(&lun->lun_lock, "CTL LUN", NULL, MTX_DEF); 4544 lun->lun = lun_number; 4545 lun->be_lun = be_lun; 4546 /* 4547 * The processor LUN is always enabled. Disk LUNs come on line 4548 * disabled, and must be enabled by the backend. 4549 */ 4550 lun->flags |= CTL_LUN_DISABLED; 4551 lun->backend = be_lun->be; 4552 be_lun->ctl_lun = lun; 4553 be_lun->lun_id = lun_number; 4554 atomic_add_int(&be_lun->be->num_luns, 1); 4555 if (be_lun->flags & CTL_LUN_FLAG_EJECTED) 4556 lun->flags |= CTL_LUN_EJECTED; 4557 if (be_lun->flags & CTL_LUN_FLAG_NO_MEDIA) 4558 lun->flags |= CTL_LUN_NO_MEDIA; 4559 if (be_lun->flags & CTL_LUN_FLAG_STOPPED) 4560 lun->flags |= CTL_LUN_STOPPED; 4561 4562 if (be_lun->flags & CTL_LUN_FLAG_PRIMARY) 4563 lun->flags |= CTL_LUN_PRIMARY_SC; 4564 4565 value = ctl_get_opt(&be_lun->options, "removable"); 4566 if (value != NULL) { 4567 if (strcmp(value, "on") == 0) 4568 lun->flags |= CTL_LUN_REMOVABLE; 4569 } else if (be_lun->lun_type == T_CDROM) 4570 lun->flags |= CTL_LUN_REMOVABLE; 4571 4572 lun->ctl_softc = ctl_softc; 4573#ifdef CTL_TIME_IO 4574 lun->last_busy = getsbinuptime(); 4575#endif 4576 TAILQ_INIT(&lun->ooa_queue); 4577 TAILQ_INIT(&lun->blocked_queue); 4578 STAILQ_INIT(&lun->error_list); 4579 lun->ie_reported = 1; 4580 callout_init_mtx(&lun->ie_callout, &lun->lun_lock, 0); 4581 ctl_tpc_lun_init(lun); 4582 4583 /* 4584 * Initialize the mode and log page index. 4585 */ 4586 ctl_init_page_index(lun); 4587 ctl_init_log_page_index(lun); 4588 4589 /* 4590 * Now, before we insert this lun on the lun list, set the lun 4591 * inventory changed UA for all other luns. 4592 */ 4593 STAILQ_FOREACH(nlun, &ctl_softc->lun_list, links) { 4594 mtx_lock(&nlun->lun_lock); 4595 ctl_est_ua_all(nlun, -1, CTL_UA_LUN_CHANGE); 4596 mtx_unlock(&nlun->lun_lock); 4597 } 4598 4599 STAILQ_INSERT_TAIL(&ctl_softc->lun_list, lun, links); 4600 4601 ctl_softc->ctl_luns[lun_number] = lun; 4602 4603 ctl_softc->num_luns++; 4604 4605 /* Setup statistics gathering */ 4606 lun->stats.device_type = be_lun->lun_type; 4607 lun->stats.lun_number = lun_number; 4608 lun->stats.blocksize = be_lun->blocksize; 4609 if (be_lun->blocksize == 0) 4610 lun->stats.flags = CTL_LUN_STATS_NO_BLOCKSIZE; 4611 for (i = 0;i < CTL_MAX_PORTS;i++) 4612 lun->stats.ports[i].targ_port = i; 4613 4614 mtx_unlock(&ctl_softc->ctl_lock); 4615 4616 lun->be_lun->lun_config_status(lun->be_lun->be_lun, CTL_LUN_CONFIG_OK); 4617 return (0); 4618} 4619 4620/* 4621 * Delete a LUN. 4622 * Assumptions: 4623 * - LUN has already been marked invalid and any pending I/O has been taken 4624 * care of. 4625 */ 4626static int 4627ctl_free_lun(struct ctl_lun *lun) 4628{ 4629 struct ctl_softc *softc = lun->ctl_softc; 4630 struct ctl_lun *nlun; 4631 int i; 4632 4633 mtx_assert(&softc->ctl_lock, MA_OWNED); 4634 4635 STAILQ_REMOVE(&softc->lun_list, lun, ctl_lun, links); 4636 4637 ctl_clear_mask(softc->ctl_lun_mask, lun->lun); 4638 4639 softc->ctl_luns[lun->lun] = NULL; 4640 4641 if (!TAILQ_EMPTY(&lun->ooa_queue)) 4642 panic("Freeing a LUN %p with outstanding I/O!!\n", lun); 4643 4644 softc->num_luns--; 4645 4646 /* 4647 * Tell the backend to free resources, if this LUN has a backend. 4648 */ 4649 atomic_subtract_int(&lun->be_lun->be->num_luns, 1); 4650 lun->be_lun->lun_shutdown(lun->be_lun->be_lun); 4651 4652 lun->ie_reportcnt = UINT32_MAX; 4653 callout_drain(&lun->ie_callout); 4654 4655 ctl_tpc_lun_shutdown(lun); 4656 mtx_destroy(&lun->lun_lock); 4657 free(lun->lun_devid, M_CTL); 4658 for (i = 0; i < CTL_MAX_PORTS; i++) 4659 free(lun->pending_ua[i], M_CTL); 4660 for (i = 0; i < CTL_MAX_PORTS; i++) 4661 free(lun->pr_keys[i], M_CTL); 4662 free(lun->write_buffer, M_CTL); 4663 if (lun->flags & CTL_LUN_MALLOCED) 4664 free(lun, M_CTL); 4665 4666 STAILQ_FOREACH(nlun, &softc->lun_list, links) { 4667 mtx_lock(&nlun->lun_lock); 4668 ctl_est_ua_all(nlun, -1, CTL_UA_LUN_CHANGE); 4669 mtx_unlock(&nlun->lun_lock); 4670 } 4671 4672 return (0); 4673} 4674 4675static void 4676ctl_create_lun(struct ctl_be_lun *be_lun) 4677{ 4678 4679 /* 4680 * ctl_alloc_lun() should handle all potential failure cases. 4681 */ 4682 ctl_alloc_lun(control_softc, NULL, be_lun); 4683} 4684 4685int 4686ctl_add_lun(struct ctl_be_lun *be_lun) 4687{ 4688 struct ctl_softc *softc = control_softc; 4689 4690 mtx_lock(&softc->ctl_lock); 4691 STAILQ_INSERT_TAIL(&softc->pending_lun_queue, be_lun, links); 4692 mtx_unlock(&softc->ctl_lock); 4693 wakeup(&softc->pending_lun_queue); 4694 4695 return (0); 4696} 4697 4698int 4699ctl_enable_lun(struct ctl_be_lun *be_lun) 4700{ 4701 struct ctl_softc *softc; 4702 struct ctl_port *port, *nport; 4703 struct ctl_lun *lun; 4704 int retval; 4705 4706 lun = (struct ctl_lun *)be_lun->ctl_lun; 4707 softc = lun->ctl_softc; 4708 4709 mtx_lock(&softc->ctl_lock); 4710 mtx_lock(&lun->lun_lock); 4711 if ((lun->flags & CTL_LUN_DISABLED) == 0) { 4712 /* 4713 * eh? Why did we get called if the LUN is already 4714 * enabled? 4715 */ 4716 mtx_unlock(&lun->lun_lock); 4717 mtx_unlock(&softc->ctl_lock); 4718 return (0); 4719 } 4720 lun->flags &= ~CTL_LUN_DISABLED; 4721 mtx_unlock(&lun->lun_lock); 4722 4723 STAILQ_FOREACH_SAFE(port, &softc->port_list, links, nport) { 4724 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0 || 4725 port->lun_map != NULL || port->lun_enable == NULL) 4726 continue; 4727 4728 /* 4729 * Drop the lock while we call the FETD's enable routine. 4730 * This can lead to a callback into CTL (at least in the 4731 * case of the internal initiator frontend. 4732 */ 4733 mtx_unlock(&softc->ctl_lock); 4734 retval = port->lun_enable(port->targ_lun_arg, lun->lun); 4735 mtx_lock(&softc->ctl_lock); 4736 if (retval != 0) { 4737 printf("%s: FETD %s port %d returned error " 4738 "%d for lun_enable on lun %jd\n", 4739 __func__, port->port_name, port->targ_port, 4740 retval, (intmax_t)lun->lun); 4741 } 4742 } 4743 4744 mtx_unlock(&softc->ctl_lock); 4745 ctl_isc_announce_lun(lun); 4746 4747 return (0); 4748} 4749 4750int 4751ctl_disable_lun(struct ctl_be_lun *be_lun) 4752{ 4753 struct ctl_softc *softc; 4754 struct ctl_port *port; 4755 struct ctl_lun *lun; 4756 int retval; 4757 4758 lun = (struct ctl_lun *)be_lun->ctl_lun; 4759 softc = lun->ctl_softc; 4760 4761 mtx_lock(&softc->ctl_lock); 4762 mtx_lock(&lun->lun_lock); 4763 if (lun->flags & CTL_LUN_DISABLED) { 4764 mtx_unlock(&lun->lun_lock); 4765 mtx_unlock(&softc->ctl_lock); 4766 return (0); 4767 } 4768 lun->flags |= CTL_LUN_DISABLED; 4769 mtx_unlock(&lun->lun_lock); 4770 4771 STAILQ_FOREACH(port, &softc->port_list, links) { 4772 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0 || 4773 port->lun_map != NULL || port->lun_disable == NULL) 4774 continue; 4775 4776 /* 4777 * Drop the lock before we call the frontend's disable 4778 * routine, to avoid lock order reversals. 4779 * 4780 * XXX KDM what happens if the frontend list changes while 4781 * we're traversing it? It's unlikely, but should be handled. 4782 */ 4783 mtx_unlock(&softc->ctl_lock); 4784 retval = port->lun_disable(port->targ_lun_arg, lun->lun); 4785 mtx_lock(&softc->ctl_lock); 4786 if (retval != 0) { 4787 printf("%s: FETD %s port %d returned error " 4788 "%d for lun_disable on lun %jd\n", 4789 __func__, port->port_name, port->targ_port, 4790 retval, (intmax_t)lun->lun); 4791 } 4792 } 4793 4794 mtx_unlock(&softc->ctl_lock); 4795 ctl_isc_announce_lun(lun); 4796 4797 return (0); 4798} 4799 4800int 4801ctl_start_lun(struct ctl_be_lun *be_lun) 4802{ 4803 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 4804 4805 mtx_lock(&lun->lun_lock); 4806 lun->flags &= ~CTL_LUN_STOPPED; 4807 mtx_unlock(&lun->lun_lock); 4808 return (0); 4809} 4810 4811int 4812ctl_stop_lun(struct ctl_be_lun *be_lun) 4813{ 4814 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 4815 4816 mtx_lock(&lun->lun_lock); 4817 lun->flags |= CTL_LUN_STOPPED; 4818 mtx_unlock(&lun->lun_lock); 4819 return (0); 4820} 4821 4822int 4823ctl_lun_no_media(struct ctl_be_lun *be_lun) 4824{ 4825 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 4826 4827 mtx_lock(&lun->lun_lock); 4828 lun->flags |= CTL_LUN_NO_MEDIA; 4829 mtx_unlock(&lun->lun_lock); 4830 return (0); 4831} 4832 4833int 4834ctl_lun_has_media(struct ctl_be_lun *be_lun) 4835{ 4836 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 4837 union ctl_ha_msg msg; 4838 4839 mtx_lock(&lun->lun_lock); 4840 lun->flags &= ~(CTL_LUN_NO_MEDIA | CTL_LUN_EJECTED); 4841 if (lun->flags & CTL_LUN_REMOVABLE) 4842 ctl_est_ua_all(lun, -1, CTL_UA_MEDIUM_CHANGE); 4843 mtx_unlock(&lun->lun_lock); 4844 if ((lun->flags & CTL_LUN_REMOVABLE) && 4845 lun->ctl_softc->ha_mode == CTL_HA_MODE_XFER) { 4846 bzero(&msg.ua, sizeof(msg.ua)); 4847 msg.hdr.msg_type = CTL_MSG_UA; 4848 msg.hdr.nexus.initid = -1; 4849 msg.hdr.nexus.targ_port = -1; 4850 msg.hdr.nexus.targ_lun = lun->lun; 4851 msg.hdr.nexus.targ_mapped_lun = lun->lun; 4852 msg.ua.ua_all = 1; 4853 msg.ua.ua_set = 1; 4854 msg.ua.ua_type = CTL_UA_MEDIUM_CHANGE; 4855 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, sizeof(msg.ua), 4856 M_WAITOK); 4857 } 4858 return (0); 4859} 4860 4861int 4862ctl_lun_ejected(struct ctl_be_lun *be_lun) 4863{ 4864 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 4865 4866 mtx_lock(&lun->lun_lock); 4867 lun->flags |= CTL_LUN_EJECTED; 4868 mtx_unlock(&lun->lun_lock); 4869 return (0); 4870} 4871 4872int 4873ctl_lun_primary(struct ctl_be_lun *be_lun) 4874{ 4875 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 4876 4877 mtx_lock(&lun->lun_lock); 4878 lun->flags |= CTL_LUN_PRIMARY_SC; 4879 ctl_est_ua_all(lun, -1, CTL_UA_ASYM_ACC_CHANGE); 4880 mtx_unlock(&lun->lun_lock); 4881 ctl_isc_announce_lun(lun); 4882 return (0); 4883} 4884 4885int 4886ctl_lun_secondary(struct ctl_be_lun *be_lun) 4887{ 4888 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 4889 4890 mtx_lock(&lun->lun_lock); 4891 lun->flags &= ~CTL_LUN_PRIMARY_SC; 4892 ctl_est_ua_all(lun, -1, CTL_UA_ASYM_ACC_CHANGE); 4893 mtx_unlock(&lun->lun_lock); 4894 ctl_isc_announce_lun(lun); 4895 return (0); 4896} 4897 4898int 4899ctl_invalidate_lun(struct ctl_be_lun *be_lun) 4900{ 4901 struct ctl_softc *softc; 4902 struct ctl_lun *lun; 4903 4904 lun = (struct ctl_lun *)be_lun->ctl_lun; 4905 softc = lun->ctl_softc; 4906 4907 mtx_lock(&lun->lun_lock); 4908 4909 /* 4910 * The LUN needs to be disabled before it can be marked invalid. 4911 */ 4912 if ((lun->flags & CTL_LUN_DISABLED) == 0) { 4913 mtx_unlock(&lun->lun_lock); 4914 return (-1); 4915 } 4916 /* 4917 * Mark the LUN invalid. 4918 */ 4919 lun->flags |= CTL_LUN_INVALID; 4920 4921 /* 4922 * If there is nothing in the OOA queue, go ahead and free the LUN. 4923 * If we have something in the OOA queue, we'll free it when the 4924 * last I/O completes. 4925 */ 4926 if (TAILQ_EMPTY(&lun->ooa_queue)) { 4927 mtx_unlock(&lun->lun_lock); 4928 mtx_lock(&softc->ctl_lock); 4929 ctl_free_lun(lun); 4930 mtx_unlock(&softc->ctl_lock); 4931 } else 4932 mtx_unlock(&lun->lun_lock); 4933 4934 return (0); 4935} 4936 4937void 4938ctl_lun_capacity_changed(struct ctl_be_lun *be_lun) 4939{ 4940 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 4941 union ctl_ha_msg msg; 4942 4943 mtx_lock(&lun->lun_lock); 4944 ctl_est_ua_all(lun, -1, CTL_UA_CAPACITY_CHANGE); 4945 mtx_unlock(&lun->lun_lock); 4946 if (lun->ctl_softc->ha_mode == CTL_HA_MODE_XFER) { 4947 /* Send msg to other side. */ 4948 bzero(&msg.ua, sizeof(msg.ua)); 4949 msg.hdr.msg_type = CTL_MSG_UA; 4950 msg.hdr.nexus.initid = -1; 4951 msg.hdr.nexus.targ_port = -1; 4952 msg.hdr.nexus.targ_lun = lun->lun; 4953 msg.hdr.nexus.targ_mapped_lun = lun->lun; 4954 msg.ua.ua_all = 1; 4955 msg.ua.ua_set = 1; 4956 msg.ua.ua_type = CTL_UA_CAPACITY_CHANGE; 4957 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, sizeof(msg.ua), 4958 M_WAITOK); 4959 } 4960} 4961 4962/* 4963 * Backend "memory move is complete" callback for requests that never 4964 * make it down to say RAIDCore's configuration code. 4965 */ 4966int 4967ctl_config_move_done(union ctl_io *io) 4968{ 4969 int retval; 4970 4971 CTL_DEBUG_PRINT(("ctl_config_move_done\n")); 4972 KASSERT(io->io_hdr.io_type == CTL_IO_SCSI, 4973 ("Config I/O type isn't CTL_IO_SCSI (%d)!", io->io_hdr.io_type)); 4974 4975 if ((io->io_hdr.port_status != 0) && 4976 ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE || 4977 (io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS)) { 4978 /* 4979 * For hardware error sense keys, the sense key 4980 * specific value is defined to be a retry count, 4981 * but we use it to pass back an internal FETD 4982 * error code. XXX KDM Hopefully the FETD is only 4983 * using 16 bits for an error code, since that's 4984 * all the space we have in the sks field. 4985 */ 4986 ctl_set_internal_failure(&io->scsiio, 4987 /*sks_valid*/ 1, 4988 /*retry_count*/ 4989 io->io_hdr.port_status); 4990 } 4991 4992 if (ctl_debug & CTL_DEBUG_CDB_DATA) 4993 ctl_data_print(io); 4994 if (((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_IN) || 4995 ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE && 4996 (io->io_hdr.status & CTL_STATUS_MASK) != CTL_SUCCESS) || 4997 ((io->io_hdr.flags & CTL_FLAG_ABORT) != 0)) { 4998 /* 4999 * XXX KDM just assuming a single pointer here, and not a 5000 * S/G list. If we start using S/G lists for config data, 5001 * we'll need to know how to clean them up here as well. 5002 */ 5003 if (io->io_hdr.flags & CTL_FLAG_ALLOCATED) 5004 free(io->scsiio.kern_data_ptr, M_CTL); 5005 ctl_done(io); 5006 retval = CTL_RETVAL_COMPLETE; 5007 } else { 5008 /* 5009 * XXX KDM now we need to continue data movement. Some 5010 * options: 5011 * - call ctl_scsiio() again? We don't do this for data 5012 * writes, because for those at least we know ahead of 5013 * time where the write will go and how long it is. For 5014 * config writes, though, that information is largely 5015 * contained within the write itself, thus we need to 5016 * parse out the data again. 5017 * 5018 * - Call some other function once the data is in? 5019 */ 5020 5021 /* 5022 * XXX KDM call ctl_scsiio() again for now, and check flag 5023 * bits to see whether we're allocated or not. 5024 */ 5025 retval = ctl_scsiio(&io->scsiio); 5026 } 5027 return (retval); 5028} 5029 5030/* 5031 * This gets called by a backend driver when it is done with a 5032 * data_submit method. 5033 */ 5034void 5035ctl_data_submit_done(union ctl_io *io) 5036{ 5037 /* 5038 * If the IO_CONT flag is set, we need to call the supplied 5039 * function to continue processing the I/O, instead of completing 5040 * the I/O just yet. 5041 * 5042 * If there is an error, though, we don't want to keep processing. 5043 * Instead, just send status back to the initiator. 5044 */ 5045 if ((io->io_hdr.flags & CTL_FLAG_IO_CONT) && 5046 (io->io_hdr.flags & CTL_FLAG_ABORT) == 0 && 5047 ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE || 5048 (io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS)) { 5049 io->scsiio.io_cont(io); 5050 return; 5051 } 5052 ctl_done(io); 5053} 5054 5055/* 5056 * This gets called by a backend driver when it is done with a 5057 * configuration write. 5058 */ 5059void 5060ctl_config_write_done(union ctl_io *io) 5061{ 5062 uint8_t *buf; 5063 5064 /* 5065 * If the IO_CONT flag is set, we need to call the supplied 5066 * function to continue processing the I/O, instead of completing 5067 * the I/O just yet. 5068 * 5069 * If there is an error, though, we don't want to keep processing. 5070 * Instead, just send status back to the initiator. 5071 */ 5072 if ((io->io_hdr.flags & CTL_FLAG_IO_CONT) && 5073 (io->io_hdr.flags & CTL_FLAG_ABORT) == 0 && 5074 ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE || 5075 (io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS)) { 5076 io->scsiio.io_cont(io); 5077 return; 5078 } 5079 /* 5080 * Since a configuration write can be done for commands that actually 5081 * have data allocated, like write buffer, and commands that have 5082 * no data, like start/stop unit, we need to check here. 5083 */ 5084 if (io->io_hdr.flags & CTL_FLAG_ALLOCATED) 5085 buf = io->scsiio.kern_data_ptr; 5086 else 5087 buf = NULL; 5088 ctl_done(io); 5089 if (buf) 5090 free(buf, M_CTL); 5091} 5092 5093void 5094ctl_config_read_done(union ctl_io *io) 5095{ 5096 uint8_t *buf; 5097 5098 /* 5099 * If there is some error -- we are done, skip data transfer. 5100 */ 5101 if ((io->io_hdr.flags & CTL_FLAG_ABORT) != 0 || 5102 ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE && 5103 (io->io_hdr.status & CTL_STATUS_MASK) != CTL_SUCCESS)) { 5104 if (io->io_hdr.flags & CTL_FLAG_ALLOCATED) 5105 buf = io->scsiio.kern_data_ptr; 5106 else 5107 buf = NULL; 5108 ctl_done(io); 5109 if (buf) 5110 free(buf, M_CTL); 5111 return; 5112 } 5113 5114 /* 5115 * If the IO_CONT flag is set, we need to call the supplied 5116 * function to continue processing the I/O, instead of completing 5117 * the I/O just yet. 5118 */ 5119 if (io->io_hdr.flags & CTL_FLAG_IO_CONT) { 5120 io->scsiio.io_cont(io); 5121 return; 5122 } 5123 5124 ctl_datamove(io); 5125} 5126 5127/* 5128 * SCSI release command. 5129 */ 5130int 5131ctl_scsi_release(struct ctl_scsiio *ctsio) 5132{ 5133 struct ctl_lun *lun = CTL_LUN(ctsio); 5134 uint32_t residx; 5135 5136 CTL_DEBUG_PRINT(("ctl_scsi_release\n")); 5137 5138 residx = ctl_get_initindex(&ctsio->io_hdr.nexus); 5139 5140 /* 5141 * XXX KDM right now, we only support LUN reservation. We don't 5142 * support 3rd party reservations, or extent reservations, which 5143 * might actually need the parameter list. If we've gotten this 5144 * far, we've got a LUN reservation. Anything else got kicked out 5145 * above. So, according to SPC, ignore the length. 5146 */ 5147 5148 mtx_lock(&lun->lun_lock); 5149 5150 /* 5151 * According to SPC, it is not an error for an intiator to attempt 5152 * to release a reservation on a LUN that isn't reserved, or that 5153 * is reserved by another initiator. The reservation can only be 5154 * released, though, by the initiator who made it or by one of 5155 * several reset type events. 5156 */ 5157 if ((lun->flags & CTL_LUN_RESERVED) && (lun->res_idx == residx)) 5158 lun->flags &= ~CTL_LUN_RESERVED; 5159 5160 mtx_unlock(&lun->lun_lock); 5161 5162 ctl_set_success(ctsio); 5163 ctl_done((union ctl_io *)ctsio); 5164 return (CTL_RETVAL_COMPLETE); 5165} 5166 5167int 5168ctl_scsi_reserve(struct ctl_scsiio *ctsio) 5169{ 5170 struct ctl_lun *lun = CTL_LUN(ctsio); 5171 uint32_t residx; 5172 5173 CTL_DEBUG_PRINT(("ctl_reserve\n")); 5174 5175 residx = ctl_get_initindex(&ctsio->io_hdr.nexus); 5176 5177 /* 5178 * XXX KDM right now, we only support LUN reservation. We don't 5179 * support 3rd party reservations, or extent reservations, which 5180 * might actually need the parameter list. If we've gotten this 5181 * far, we've got a LUN reservation. Anything else got kicked out 5182 * above. So, according to SPC, ignore the length. 5183 */ 5184 5185 mtx_lock(&lun->lun_lock); 5186 if ((lun->flags & CTL_LUN_RESERVED) && (lun->res_idx != residx)) { 5187 ctl_set_reservation_conflict(ctsio); 5188 goto bailout; 5189 } 5190 5191 /* SPC-3 exceptions to SPC-2 RESERVE and RELEASE behavior. */ 5192 if (lun->flags & CTL_LUN_PR_RESERVED) { 5193 ctl_set_success(ctsio); 5194 goto bailout; 5195 } 5196 5197 lun->flags |= CTL_LUN_RESERVED; 5198 lun->res_idx = residx; 5199 ctl_set_success(ctsio); 5200 5201bailout: 5202 mtx_unlock(&lun->lun_lock); 5203 ctl_done((union ctl_io *)ctsio); 5204 return (CTL_RETVAL_COMPLETE); 5205} 5206 5207int 5208ctl_start_stop(struct ctl_scsiio *ctsio) 5209{ 5210 struct ctl_lun *lun = CTL_LUN(ctsio); 5211 struct scsi_start_stop_unit *cdb; 5212 int retval; 5213 5214 CTL_DEBUG_PRINT(("ctl_start_stop\n")); 5215 5216 cdb = (struct scsi_start_stop_unit *)ctsio->cdb; 5217 5218 if ((cdb->how & SSS_PC_MASK) == 0) { 5219 if ((lun->flags & CTL_LUN_PR_RESERVED) && 5220 (cdb->how & SSS_START) == 0) { 5221 uint32_t residx; 5222 5223 residx = ctl_get_initindex(&ctsio->io_hdr.nexus); 5224 if (ctl_get_prkey(lun, residx) == 0 || 5225 (lun->pr_res_idx != residx && lun->pr_res_type < 4)) { 5226 5227 ctl_set_reservation_conflict(ctsio); 5228 ctl_done((union ctl_io *)ctsio); 5229 return (CTL_RETVAL_COMPLETE); 5230 } 5231 } 5232 5233 if ((cdb->how & SSS_LOEJ) && 5234 (lun->flags & CTL_LUN_REMOVABLE) == 0) { 5235 ctl_set_invalid_field(ctsio, 5236 /*sks_valid*/ 1, 5237 /*command*/ 1, 5238 /*field*/ 4, 5239 /*bit_valid*/ 1, 5240 /*bit*/ 1); 5241 ctl_done((union ctl_io *)ctsio); 5242 return (CTL_RETVAL_COMPLETE); 5243 } 5244 5245 if ((cdb->how & SSS_START) == 0 && (cdb->how & SSS_LOEJ) && 5246 lun->prevent_count > 0) { 5247 /* "Medium removal prevented" */ 5248 ctl_set_sense(ctsio, /*current_error*/ 1, 5249 /*sense_key*/(lun->flags & CTL_LUN_NO_MEDIA) ? 5250 SSD_KEY_NOT_READY : SSD_KEY_ILLEGAL_REQUEST, 5251 /*asc*/ 0x53, /*ascq*/ 0x02, SSD_ELEM_NONE); 5252 ctl_done((union ctl_io *)ctsio); 5253 return (CTL_RETVAL_COMPLETE); 5254 } 5255 } 5256 5257 retval = lun->backend->config_write((union ctl_io *)ctsio); 5258 return (retval); 5259} 5260 5261int 5262ctl_prevent_allow(struct ctl_scsiio *ctsio) 5263{ 5264 struct ctl_lun *lun = CTL_LUN(ctsio); 5265 struct scsi_prevent *cdb; 5266 int retval; 5267 uint32_t initidx; 5268 5269 CTL_DEBUG_PRINT(("ctl_prevent_allow\n")); 5270 5271 cdb = (struct scsi_prevent *)ctsio->cdb; 5272 5273 if ((lun->flags & CTL_LUN_REMOVABLE) == 0) { 5274 ctl_set_invalid_opcode(ctsio); 5275 ctl_done((union ctl_io *)ctsio); 5276 return (CTL_RETVAL_COMPLETE); 5277 } 5278 5279 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 5280 mtx_lock(&lun->lun_lock); 5281 if ((cdb->how & PR_PREVENT) && 5282 ctl_is_set(lun->prevent, initidx) == 0) { 5283 ctl_set_mask(lun->prevent, initidx); 5284 lun->prevent_count++; 5285 } else if ((cdb->how & PR_PREVENT) == 0 && 5286 ctl_is_set(lun->prevent, initidx)) { 5287 ctl_clear_mask(lun->prevent, initidx); 5288 lun->prevent_count--; 5289 } 5290 mtx_unlock(&lun->lun_lock); 5291 retval = lun->backend->config_write((union ctl_io *)ctsio); 5292 return (retval); 5293} 5294 5295/* 5296 * We support the SYNCHRONIZE CACHE command (10 and 16 byte versions), but 5297 * we don't really do anything with the LBA and length fields if the user 5298 * passes them in. Instead we'll just flush out the cache for the entire 5299 * LUN. 5300 */ 5301int 5302ctl_sync_cache(struct ctl_scsiio *ctsio) 5303{ 5304 struct ctl_lun *lun = CTL_LUN(ctsio); 5305 struct ctl_lba_len_flags *lbalen; 5306 uint64_t starting_lba; 5307 uint32_t block_count; 5308 int retval; 5309 uint8_t byte2; 5310 5311 CTL_DEBUG_PRINT(("ctl_sync_cache\n")); 5312 5313 retval = 0; 5314 5315 switch (ctsio->cdb[0]) { 5316 case SYNCHRONIZE_CACHE: { 5317 struct scsi_sync_cache *cdb; 5318 cdb = (struct scsi_sync_cache *)ctsio->cdb; 5319 5320 starting_lba = scsi_4btoul(cdb->begin_lba); 5321 block_count = scsi_2btoul(cdb->lb_count); 5322 byte2 = cdb->byte2; 5323 break; 5324 } 5325 case SYNCHRONIZE_CACHE_16: { 5326 struct scsi_sync_cache_16 *cdb; 5327 cdb = (struct scsi_sync_cache_16 *)ctsio->cdb; 5328 5329 starting_lba = scsi_8btou64(cdb->begin_lba); 5330 block_count = scsi_4btoul(cdb->lb_count); 5331 byte2 = cdb->byte2; 5332 break; 5333 } 5334 default: 5335 ctl_set_invalid_opcode(ctsio); 5336 ctl_done((union ctl_io *)ctsio); 5337 goto bailout; 5338 break; /* NOTREACHED */ 5339 } 5340 5341 /* 5342 * We check the LBA and length, but don't do anything with them. 5343 * A SYNCHRONIZE CACHE will cause the entire cache for this lun to 5344 * get flushed. This check will just help satisfy anyone who wants 5345 * to see an error for an out of range LBA. 5346 */ 5347 if ((starting_lba + block_count) > (lun->be_lun->maxlba + 1)) { 5348 ctl_set_lba_out_of_range(ctsio, 5349 MAX(starting_lba, lun->be_lun->maxlba + 1)); 5350 ctl_done((union ctl_io *)ctsio); 5351 goto bailout; 5352 } 5353 5354 lbalen = (struct ctl_lba_len_flags *)&ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 5355 lbalen->lba = starting_lba; 5356 lbalen->len = block_count; 5357 lbalen->flags = byte2; 5358 retval = lun->backend->config_write((union ctl_io *)ctsio); 5359 5360bailout: 5361 return (retval); 5362} 5363 5364int 5365ctl_format(struct ctl_scsiio *ctsio) 5366{ 5367 struct scsi_format *cdb; 5368 int length, defect_list_len; 5369 5370 CTL_DEBUG_PRINT(("ctl_format\n")); 5371 5372 cdb = (struct scsi_format *)ctsio->cdb; 5373 5374 length = 0; 5375 if (cdb->byte2 & SF_FMTDATA) { 5376 if (cdb->byte2 & SF_LONGLIST) 5377 length = sizeof(struct scsi_format_header_long); 5378 else 5379 length = sizeof(struct scsi_format_header_short); 5380 } 5381 5382 if (((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) 5383 && (length > 0)) { 5384 ctsio->kern_data_ptr = malloc(length, M_CTL, M_WAITOK); 5385 ctsio->kern_data_len = length; 5386 ctsio->kern_total_len = length; 5387 ctsio->kern_data_resid = 0; 5388 ctsio->kern_rel_offset = 0; 5389 ctsio->kern_sg_entries = 0; 5390 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5391 ctsio->be_move_done = ctl_config_move_done; 5392 ctl_datamove((union ctl_io *)ctsio); 5393 5394 return (CTL_RETVAL_COMPLETE); 5395 } 5396 5397 defect_list_len = 0; 5398 5399 if (cdb->byte2 & SF_FMTDATA) { 5400 if (cdb->byte2 & SF_LONGLIST) { 5401 struct scsi_format_header_long *header; 5402 5403 header = (struct scsi_format_header_long *) 5404 ctsio->kern_data_ptr; 5405 5406 defect_list_len = scsi_4btoul(header->defect_list_len); 5407 if (defect_list_len != 0) { 5408 ctl_set_invalid_field(ctsio, 5409 /*sks_valid*/ 1, 5410 /*command*/ 0, 5411 /*field*/ 2, 5412 /*bit_valid*/ 0, 5413 /*bit*/ 0); 5414 goto bailout; 5415 } 5416 } else { 5417 struct scsi_format_header_short *header; 5418 5419 header = (struct scsi_format_header_short *) 5420 ctsio->kern_data_ptr; 5421 5422 defect_list_len = scsi_2btoul(header->defect_list_len); 5423 if (defect_list_len != 0) { 5424 ctl_set_invalid_field(ctsio, 5425 /*sks_valid*/ 1, 5426 /*command*/ 0, 5427 /*field*/ 2, 5428 /*bit_valid*/ 0, 5429 /*bit*/ 0); 5430 goto bailout; 5431 } 5432 } 5433 } 5434 5435 ctl_set_success(ctsio); 5436bailout: 5437 5438 if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) { 5439 free(ctsio->kern_data_ptr, M_CTL); 5440 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED; 5441 } 5442 5443 ctl_done((union ctl_io *)ctsio); 5444 return (CTL_RETVAL_COMPLETE); 5445} 5446 5447int 5448ctl_read_buffer(struct ctl_scsiio *ctsio) 5449{ 5450 struct ctl_lun *lun = CTL_LUN(ctsio); 5451 uint64_t buffer_offset; 5452 uint32_t len; 5453 uint8_t byte2; 5454 static uint8_t descr[4]; 5455 static uint8_t echo_descr[4] = { 0 }; 5456 5457 CTL_DEBUG_PRINT(("ctl_read_buffer\n")); 5458 5459 switch (ctsio->cdb[0]) { 5460 case READ_BUFFER: { 5461 struct scsi_read_buffer *cdb; 5462 5463 cdb = (struct scsi_read_buffer *)ctsio->cdb; 5464 buffer_offset = scsi_3btoul(cdb->offset); 5465 len = scsi_3btoul(cdb->length); 5466 byte2 = cdb->byte2; 5467 break; 5468 } 5469 case READ_BUFFER_16: { 5470 struct scsi_read_buffer_16 *cdb; 5471 5472 cdb = (struct scsi_read_buffer_16 *)ctsio->cdb; 5473 buffer_offset = scsi_8btou64(cdb->offset); 5474 len = scsi_4btoul(cdb->length); 5475 byte2 = cdb->byte2; 5476 break; 5477 } 5478 default: /* This shouldn't happen. */ 5479 ctl_set_invalid_opcode(ctsio); 5480 ctl_done((union ctl_io *)ctsio); 5481 return (CTL_RETVAL_COMPLETE); 5482 } 5483 5484 if (buffer_offset > CTL_WRITE_BUFFER_SIZE || 5485 buffer_offset + len > CTL_WRITE_BUFFER_SIZE) { 5486 ctl_set_invalid_field(ctsio, 5487 /*sks_valid*/ 1, 5488 /*command*/ 1, 5489 /*field*/ 6, 5490 /*bit_valid*/ 0, 5491 /*bit*/ 0); 5492 ctl_done((union ctl_io *)ctsio); 5493 return (CTL_RETVAL_COMPLETE); 5494 } 5495 5496 if ((byte2 & RWB_MODE) == RWB_MODE_DESCR) { 5497 descr[0] = 0; 5498 scsi_ulto3b(CTL_WRITE_BUFFER_SIZE, &descr[1]); 5499 ctsio->kern_data_ptr = descr; 5500 len = min(len, sizeof(descr)); 5501 } else if ((byte2 & RWB_MODE) == RWB_MODE_ECHO_DESCR) { 5502 ctsio->kern_data_ptr = echo_descr; 5503 len = min(len, sizeof(echo_descr)); 5504 } else { 5505 if (lun->write_buffer == NULL) { 5506 lun->write_buffer = malloc(CTL_WRITE_BUFFER_SIZE, 5507 M_CTL, M_WAITOK); 5508 } 5509 ctsio->kern_data_ptr = lun->write_buffer + buffer_offset; 5510 } 5511 ctsio->kern_data_len = len; 5512 ctsio->kern_total_len = len; 5513 ctsio->kern_data_resid = 0; 5514 ctsio->kern_rel_offset = 0; 5515 ctsio->kern_sg_entries = 0; 5516 ctl_set_success(ctsio); 5517 ctsio->be_move_done = ctl_config_move_done; 5518 ctl_datamove((union ctl_io *)ctsio); 5519 return (CTL_RETVAL_COMPLETE); 5520} 5521 5522int 5523ctl_write_buffer(struct ctl_scsiio *ctsio) 5524{ 5525 struct ctl_lun *lun = CTL_LUN(ctsio); 5526 struct scsi_write_buffer *cdb; 5527 int buffer_offset, len; 5528 5529 CTL_DEBUG_PRINT(("ctl_write_buffer\n")); 5530 5531 cdb = (struct scsi_write_buffer *)ctsio->cdb; 5532 5533 len = scsi_3btoul(cdb->length); 5534 buffer_offset = scsi_3btoul(cdb->offset); 5535 5536 if (buffer_offset + len > CTL_WRITE_BUFFER_SIZE) { 5537 ctl_set_invalid_field(ctsio, 5538 /*sks_valid*/ 1, 5539 /*command*/ 1, 5540 /*field*/ 6, 5541 /*bit_valid*/ 0, 5542 /*bit*/ 0); 5543 ctl_done((union ctl_io *)ctsio); 5544 return (CTL_RETVAL_COMPLETE); 5545 } 5546 5547 /* 5548 * If we've got a kernel request that hasn't been malloced yet, 5549 * malloc it and tell the caller the data buffer is here. 5550 */ 5551 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 5552 if (lun->write_buffer == NULL) { 5553 lun->write_buffer = malloc(CTL_WRITE_BUFFER_SIZE, 5554 M_CTL, M_WAITOK); 5555 } 5556 ctsio->kern_data_ptr = lun->write_buffer + buffer_offset; 5557 ctsio->kern_data_len = len; 5558 ctsio->kern_total_len = len; 5559 ctsio->kern_data_resid = 0; 5560 ctsio->kern_rel_offset = 0; 5561 ctsio->kern_sg_entries = 0; 5562 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5563 ctsio->be_move_done = ctl_config_move_done; 5564 ctl_datamove((union ctl_io *)ctsio); 5565 5566 return (CTL_RETVAL_COMPLETE); 5567 } 5568 5569 ctl_set_success(ctsio); 5570 ctl_done((union ctl_io *)ctsio); 5571 return (CTL_RETVAL_COMPLETE); 5572} 5573 5574int 5575ctl_write_same(struct ctl_scsiio *ctsio) 5576{ 5577 struct ctl_lun *lun = CTL_LUN(ctsio); 5578 struct ctl_lba_len_flags *lbalen; 5579 uint64_t lba; 5580 uint32_t num_blocks; 5581 int len, retval; 5582 uint8_t byte2; 5583 5584 CTL_DEBUG_PRINT(("ctl_write_same\n")); 5585 5586 switch (ctsio->cdb[0]) { 5587 case WRITE_SAME_10: { 5588 struct scsi_write_same_10 *cdb; 5589 5590 cdb = (struct scsi_write_same_10 *)ctsio->cdb; 5591 5592 lba = scsi_4btoul(cdb->addr); 5593 num_blocks = scsi_2btoul(cdb->length); 5594 byte2 = cdb->byte2; 5595 break; 5596 } 5597 case WRITE_SAME_16: { 5598 struct scsi_write_same_16 *cdb; 5599 5600 cdb = (struct scsi_write_same_16 *)ctsio->cdb; 5601 5602 lba = scsi_8btou64(cdb->addr); 5603 num_blocks = scsi_4btoul(cdb->length); 5604 byte2 = cdb->byte2; 5605 break; 5606 } 5607 default: 5608 /* 5609 * We got a command we don't support. This shouldn't 5610 * happen, commands should be filtered out above us. 5611 */ 5612 ctl_set_invalid_opcode(ctsio); 5613 ctl_done((union ctl_io *)ctsio); 5614 5615 return (CTL_RETVAL_COMPLETE); 5616 break; /* NOTREACHED */ 5617 } 5618 5619 /* ANCHOR flag can be used only together with UNMAP */ 5620 if ((byte2 & SWS_UNMAP) == 0 && (byte2 & SWS_ANCHOR) != 0) { 5621 ctl_set_invalid_field(ctsio, /*sks_valid*/ 1, 5622 /*command*/ 1, /*field*/ 1, /*bit_valid*/ 1, /*bit*/ 0); 5623 ctl_done((union ctl_io *)ctsio); 5624 return (CTL_RETVAL_COMPLETE); 5625 } 5626 5627 /* 5628 * The first check is to make sure we're in bounds, the second 5629 * check is to catch wrap-around problems. If the lba + num blocks 5630 * is less than the lba, then we've wrapped around and the block 5631 * range is invalid anyway. 5632 */ 5633 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 5634 || ((lba + num_blocks) < lba)) { 5635 ctl_set_lba_out_of_range(ctsio, 5636 MAX(lba, lun->be_lun->maxlba + 1)); 5637 ctl_done((union ctl_io *)ctsio); 5638 return (CTL_RETVAL_COMPLETE); 5639 } 5640 5641 /* Zero number of blocks means "to the last logical block" */ 5642 if (num_blocks == 0) { 5643 if ((lun->be_lun->maxlba + 1) - lba > UINT32_MAX) { 5644 ctl_set_invalid_field(ctsio, 5645 /*sks_valid*/ 0, 5646 /*command*/ 1, 5647 /*field*/ 0, 5648 /*bit_valid*/ 0, 5649 /*bit*/ 0); 5650 ctl_done((union ctl_io *)ctsio); 5651 return (CTL_RETVAL_COMPLETE); 5652 } 5653 num_blocks = (lun->be_lun->maxlba + 1) - lba; 5654 } 5655 5656 len = lun->be_lun->blocksize; 5657 5658 /* 5659 * If we've got a kernel request that hasn't been malloced yet, 5660 * malloc it and tell the caller the data buffer is here. 5661 */ 5662 if ((byte2 & SWS_NDOB) == 0 && 5663 (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 5664 ctsio->kern_data_ptr = malloc(len, M_CTL, M_WAITOK); 5665 ctsio->kern_data_len = len; 5666 ctsio->kern_total_len = len; 5667 ctsio->kern_data_resid = 0; 5668 ctsio->kern_rel_offset = 0; 5669 ctsio->kern_sg_entries = 0; 5670 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5671 ctsio->be_move_done = ctl_config_move_done; 5672 ctl_datamove((union ctl_io *)ctsio); 5673 5674 return (CTL_RETVAL_COMPLETE); 5675 } 5676 5677 lbalen = (struct ctl_lba_len_flags *)&ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 5678 lbalen->lba = lba; 5679 lbalen->len = num_blocks; 5680 lbalen->flags = byte2; 5681 retval = lun->backend->config_write((union ctl_io *)ctsio); 5682 5683 return (retval); 5684} 5685 5686int 5687ctl_unmap(struct ctl_scsiio *ctsio) 5688{ 5689 struct ctl_lun *lun = CTL_LUN(ctsio); 5690 struct scsi_unmap *cdb; 5691 struct ctl_ptr_len_flags *ptrlen; 5692 struct scsi_unmap_header *hdr; 5693 struct scsi_unmap_desc *buf, *end, *endnz, *range; 5694 uint64_t lba; 5695 uint32_t num_blocks; 5696 int len, retval; 5697 uint8_t byte2; 5698 5699 CTL_DEBUG_PRINT(("ctl_unmap\n")); 5700 5701 cdb = (struct scsi_unmap *)ctsio->cdb; 5702 len = scsi_2btoul(cdb->length); 5703 byte2 = cdb->byte2; 5704 5705 /* 5706 * If we've got a kernel request that hasn't been malloced yet, 5707 * malloc it and tell the caller the data buffer is here. 5708 */ 5709 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 5710 ctsio->kern_data_ptr = malloc(len, M_CTL, M_WAITOK); 5711 ctsio->kern_data_len = len; 5712 ctsio->kern_total_len = len; 5713 ctsio->kern_data_resid = 0; 5714 ctsio->kern_rel_offset = 0; 5715 ctsio->kern_sg_entries = 0; 5716 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5717 ctsio->be_move_done = ctl_config_move_done; 5718 ctl_datamove((union ctl_io *)ctsio); 5719 5720 return (CTL_RETVAL_COMPLETE); 5721 } 5722 5723 len = ctsio->kern_total_len - ctsio->kern_data_resid; 5724 hdr = (struct scsi_unmap_header *)ctsio->kern_data_ptr; 5725 if (len < sizeof (*hdr) || 5726 len < (scsi_2btoul(hdr->length) + sizeof(hdr->length)) || 5727 len < (scsi_2btoul(hdr->desc_length) + sizeof (*hdr)) || 5728 scsi_2btoul(hdr->desc_length) % sizeof(*buf) != 0) { 5729 ctl_set_invalid_field(ctsio, 5730 /*sks_valid*/ 0, 5731 /*command*/ 0, 5732 /*field*/ 0, 5733 /*bit_valid*/ 0, 5734 /*bit*/ 0); 5735 goto done; 5736 } 5737 len = scsi_2btoul(hdr->desc_length); 5738 buf = (struct scsi_unmap_desc *)(hdr + 1); 5739 end = buf + len / sizeof(*buf); 5740 5741 endnz = buf; 5742 for (range = buf; range < end; range++) { 5743 lba = scsi_8btou64(range->lba); 5744 num_blocks = scsi_4btoul(range->length); 5745 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 5746 || ((lba + num_blocks) < lba)) { 5747 ctl_set_lba_out_of_range(ctsio, 5748 MAX(lba, lun->be_lun->maxlba + 1)); 5749 ctl_done((union ctl_io *)ctsio); 5750 return (CTL_RETVAL_COMPLETE); 5751 } 5752 if (num_blocks != 0) 5753 endnz = range + 1; 5754 } 5755 5756 /* 5757 * Block backend can not handle zero last range. 5758 * Filter it out and return if there is nothing left. 5759 */ 5760 len = (uint8_t *)endnz - (uint8_t *)buf; 5761 if (len == 0) { 5762 ctl_set_success(ctsio); 5763 goto done; 5764 } 5765 5766 mtx_lock(&lun->lun_lock); 5767 ptrlen = (struct ctl_ptr_len_flags *) 5768 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 5769 ptrlen->ptr = (void *)buf; 5770 ptrlen->len = len; 5771 ptrlen->flags = byte2; 5772 ctl_check_blocked(lun); 5773 mtx_unlock(&lun->lun_lock); 5774 5775 retval = lun->backend->config_write((union ctl_io *)ctsio); 5776 return (retval); 5777 5778done: 5779 if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) { 5780 free(ctsio->kern_data_ptr, M_CTL); 5781 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED; 5782 } 5783 ctl_done((union ctl_io *)ctsio); 5784 return (CTL_RETVAL_COMPLETE); 5785} 5786 5787int 5788ctl_default_page_handler(struct ctl_scsiio *ctsio, 5789 struct ctl_page_index *page_index, uint8_t *page_ptr) 5790{ 5791 struct ctl_lun *lun = CTL_LUN(ctsio); 5792 uint8_t *current_cp; 5793 int set_ua; 5794 uint32_t initidx; 5795 5796 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 5797 set_ua = 0; 5798 5799 current_cp = (page_index->page_data + (page_index->page_len * 5800 CTL_PAGE_CURRENT)); 5801 5802 mtx_lock(&lun->lun_lock); 5803 if (memcmp(current_cp, page_ptr, page_index->page_len)) { 5804 memcpy(current_cp, page_ptr, page_index->page_len); 5805 set_ua = 1; 5806 } 5807 if (set_ua != 0) 5808 ctl_est_ua_all(lun, initidx, CTL_UA_MODE_CHANGE); 5809 mtx_unlock(&lun->lun_lock); 5810 if (set_ua) { 5811 ctl_isc_announce_mode(lun, 5812 ctl_get_initindex(&ctsio->io_hdr.nexus), 5813 page_index->page_code, page_index->subpage); 5814 } 5815 return (CTL_RETVAL_COMPLETE); 5816} 5817 5818static void 5819ctl_ie_timer(void *arg) 5820{ 5821 struct ctl_lun *lun = arg; 5822 uint64_t t; 5823 5824 if (lun->ie_asc == 0) 5825 return; 5826 5827 if (lun->MODE_IE.mrie == SIEP_MRIE_UA) 5828 ctl_est_ua_all(lun, -1, CTL_UA_IE); 5829 else 5830 lun->ie_reported = 0; 5831 5832 if (lun->ie_reportcnt < scsi_4btoul(lun->MODE_IE.report_count)) { 5833 lun->ie_reportcnt++; 5834 t = scsi_4btoul(lun->MODE_IE.interval_timer); 5835 if (t == 0 || t == UINT32_MAX) 5836 t = 3000; /* 5 min */ 5837 callout_schedule(&lun->ie_callout, t * hz / 10); 5838 } 5839} 5840 5841int 5842ctl_ie_page_handler(struct ctl_scsiio *ctsio, 5843 struct ctl_page_index *page_index, uint8_t *page_ptr) 5844{ 5845 struct ctl_lun *lun = CTL_LUN(ctsio); 5846 struct scsi_info_exceptions_page *pg; 5847 uint64_t t; 5848 5849 (void)ctl_default_page_handler(ctsio, page_index, page_ptr); 5850 5851 pg = (struct scsi_info_exceptions_page *)page_ptr; 5852 mtx_lock(&lun->lun_lock); 5853 if (pg->info_flags & SIEP_FLAGS_TEST) { 5854 lun->ie_asc = 0x5d; 5855 lun->ie_ascq = 0xff; 5856 if (pg->mrie == SIEP_MRIE_UA) { 5857 ctl_est_ua_all(lun, -1, CTL_UA_IE); 5858 lun->ie_reported = 1; 5859 } else { 5860 ctl_clr_ua_all(lun, -1, CTL_UA_IE); 5861 lun->ie_reported = -1; 5862 } 5863 lun->ie_reportcnt = 1; 5864 if (lun->ie_reportcnt < scsi_4btoul(pg->report_count)) { 5865 lun->ie_reportcnt++; 5866 t = scsi_4btoul(pg->interval_timer); 5867 if (t == 0 || t == UINT32_MAX) 5868 t = 3000; /* 5 min */ 5869 callout_reset(&lun->ie_callout, t * hz / 10, 5870 ctl_ie_timer, lun); 5871 } 5872 } else { 5873 lun->ie_asc = 0; 5874 lun->ie_ascq = 0; 5875 lun->ie_reported = 1; 5876 ctl_clr_ua_all(lun, -1, CTL_UA_IE); 5877 lun->ie_reportcnt = UINT32_MAX; 5878 callout_stop(&lun->ie_callout); 5879 } 5880 mtx_unlock(&lun->lun_lock); 5881 return (CTL_RETVAL_COMPLETE); 5882} 5883 5884static int 5885ctl_do_mode_select(union ctl_io *io) 5886{ 5887 struct ctl_lun *lun = CTL_LUN(io); 5888 struct scsi_mode_page_header *page_header; 5889 struct ctl_page_index *page_index; 5890 struct ctl_scsiio *ctsio; 5891 int page_len, page_len_offset, page_len_size; 5892 union ctl_modepage_info *modepage_info; 5893 uint16_t *len_left, *len_used; 5894 int retval, i; 5895 5896 ctsio = &io->scsiio; 5897 page_index = NULL; 5898 page_len = 0; 5899 5900 modepage_info = (union ctl_modepage_info *) 5901 ctsio->io_hdr.ctl_private[CTL_PRIV_MODEPAGE].bytes; 5902 len_left = &modepage_info->header.len_left; 5903 len_used = &modepage_info->header.len_used; 5904 5905do_next_page: 5906 5907 page_header = (struct scsi_mode_page_header *) 5908 (ctsio->kern_data_ptr + *len_used); 5909 5910 if (*len_left == 0) { 5911 free(ctsio->kern_data_ptr, M_CTL); 5912 ctl_set_success(ctsio); 5913 ctl_done((union ctl_io *)ctsio); 5914 return (CTL_RETVAL_COMPLETE); 5915 } else if (*len_left < sizeof(struct scsi_mode_page_header)) { 5916 5917 free(ctsio->kern_data_ptr, M_CTL); 5918 ctl_set_param_len_error(ctsio); 5919 ctl_done((union ctl_io *)ctsio); 5920 return (CTL_RETVAL_COMPLETE); 5921 5922 } else if ((page_header->page_code & SMPH_SPF) 5923 && (*len_left < sizeof(struct scsi_mode_page_header_sp))) { 5924 5925 free(ctsio->kern_data_ptr, M_CTL); 5926 ctl_set_param_len_error(ctsio); 5927 ctl_done((union ctl_io *)ctsio); 5928 return (CTL_RETVAL_COMPLETE); 5929 } 5930 5931 5932 /* 5933 * XXX KDM should we do something with the block descriptor? 5934 */ 5935 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 5936 page_index = &lun->mode_pages.index[i]; 5937 if (lun->be_lun->lun_type == T_DIRECT && 5938 (page_index->page_flags & CTL_PAGE_FLAG_DIRECT) == 0) 5939 continue; 5940 if (lun->be_lun->lun_type == T_PROCESSOR && 5941 (page_index->page_flags & CTL_PAGE_FLAG_PROC) == 0) 5942 continue; 5943 if (lun->be_lun->lun_type == T_CDROM && 5944 (page_index->page_flags & CTL_PAGE_FLAG_CDROM) == 0) 5945 continue; 5946 5947 if ((page_index->page_code & SMPH_PC_MASK) != 5948 (page_header->page_code & SMPH_PC_MASK)) 5949 continue; 5950 5951 /* 5952 * If neither page has a subpage code, then we've got a 5953 * match. 5954 */ 5955 if (((page_index->page_code & SMPH_SPF) == 0) 5956 && ((page_header->page_code & SMPH_SPF) == 0)) { 5957 page_len = page_header->page_length; 5958 break; 5959 } 5960 5961 /* 5962 * If both pages have subpages, then the subpage numbers 5963 * have to match. 5964 */ 5965 if ((page_index->page_code & SMPH_SPF) 5966 && (page_header->page_code & SMPH_SPF)) { 5967 struct scsi_mode_page_header_sp *sph; 5968 5969 sph = (struct scsi_mode_page_header_sp *)page_header; 5970 if (page_index->subpage == sph->subpage) { 5971 page_len = scsi_2btoul(sph->page_length); 5972 break; 5973 } 5974 } 5975 } 5976 5977 /* 5978 * If we couldn't find the page, or if we don't have a mode select 5979 * handler for it, send back an error to the user. 5980 */ 5981 if ((i >= CTL_NUM_MODE_PAGES) 5982 || (page_index->select_handler == NULL)) { 5983 ctl_set_invalid_field(ctsio, 5984 /*sks_valid*/ 1, 5985 /*command*/ 0, 5986 /*field*/ *len_used, 5987 /*bit_valid*/ 0, 5988 /*bit*/ 0); 5989 free(ctsio->kern_data_ptr, M_CTL); 5990 ctl_done((union ctl_io *)ctsio); 5991 return (CTL_RETVAL_COMPLETE); 5992 } 5993 5994 if (page_index->page_code & SMPH_SPF) { 5995 page_len_offset = 2; 5996 page_len_size = 2; 5997 } else { 5998 page_len_size = 1; 5999 page_len_offset = 1; 6000 } 6001 6002 /* 6003 * If the length the initiator gives us isn't the one we specify in 6004 * the mode page header, or if they didn't specify enough data in 6005 * the CDB to avoid truncating this page, kick out the request. 6006 */ 6007 if (page_len != page_index->page_len - page_len_offset - page_len_size) { 6008 ctl_set_invalid_field(ctsio, 6009 /*sks_valid*/ 1, 6010 /*command*/ 0, 6011 /*field*/ *len_used + page_len_offset, 6012 /*bit_valid*/ 0, 6013 /*bit*/ 0); 6014 free(ctsio->kern_data_ptr, M_CTL); 6015 ctl_done((union ctl_io *)ctsio); 6016 return (CTL_RETVAL_COMPLETE); 6017 } 6018 if (*len_left < page_index->page_len) { 6019 free(ctsio->kern_data_ptr, M_CTL); 6020 ctl_set_param_len_error(ctsio); 6021 ctl_done((union ctl_io *)ctsio); 6022 return (CTL_RETVAL_COMPLETE); 6023 } 6024 6025 /* 6026 * Run through the mode page, checking to make sure that the bits 6027 * the user changed are actually legal for him to change. 6028 */ 6029 for (i = 0; i < page_index->page_len; i++) { 6030 uint8_t *user_byte, *change_mask, *current_byte; 6031 int bad_bit; 6032 int j; 6033 6034 user_byte = (uint8_t *)page_header + i; 6035 change_mask = page_index->page_data + 6036 (page_index->page_len * CTL_PAGE_CHANGEABLE) + i; 6037 current_byte = page_index->page_data + 6038 (page_index->page_len * CTL_PAGE_CURRENT) + i; 6039 6040 /* 6041 * Check to see whether the user set any bits in this byte 6042 * that he is not allowed to set. 6043 */ 6044 if ((*user_byte & ~(*change_mask)) == 6045 (*current_byte & ~(*change_mask))) 6046 continue; 6047 6048 /* 6049 * Go through bit by bit to determine which one is illegal. 6050 */ 6051 bad_bit = 0; 6052 for (j = 7; j >= 0; j--) { 6053 if ((((1 << i) & ~(*change_mask)) & *user_byte) != 6054 (((1 << i) & ~(*change_mask)) & *current_byte)) { 6055 bad_bit = i; 6056 break; 6057 } 6058 } 6059 ctl_set_invalid_field(ctsio, 6060 /*sks_valid*/ 1, 6061 /*command*/ 0, 6062 /*field*/ *len_used + i, 6063 /*bit_valid*/ 1, 6064 /*bit*/ bad_bit); 6065 free(ctsio->kern_data_ptr, M_CTL); 6066 ctl_done((union ctl_io *)ctsio); 6067 return (CTL_RETVAL_COMPLETE); 6068 } 6069 6070 /* 6071 * Decrement these before we call the page handler, since we may 6072 * end up getting called back one way or another before the handler 6073 * returns to this context. 6074 */ 6075 *len_left -= page_index->page_len; 6076 *len_used += page_index->page_len; 6077 6078 retval = page_index->select_handler(ctsio, page_index, 6079 (uint8_t *)page_header); 6080 6081 /* 6082 * If the page handler returns CTL_RETVAL_QUEUED, then we need to 6083 * wait until this queued command completes to finish processing 6084 * the mode page. If it returns anything other than 6085 * CTL_RETVAL_COMPLETE (e.g. CTL_RETVAL_ERROR), then it should have 6086 * already set the sense information, freed the data pointer, and 6087 * completed the io for us. 6088 */ 6089 if (retval != CTL_RETVAL_COMPLETE) 6090 goto bailout_no_done; 6091 6092 /* 6093 * If the initiator sent us more than one page, parse the next one. 6094 */ 6095 if (*len_left > 0) 6096 goto do_next_page; 6097 6098 ctl_set_success(ctsio); 6099 free(ctsio->kern_data_ptr, M_CTL); 6100 ctl_done((union ctl_io *)ctsio); 6101 6102bailout_no_done: 6103 6104 return (CTL_RETVAL_COMPLETE); 6105 6106} 6107 6108int 6109ctl_mode_select(struct ctl_scsiio *ctsio) 6110{ 6111 struct ctl_lun *lun = CTL_LUN(ctsio); 6112 union ctl_modepage_info *modepage_info; 6113 int bd_len, i, header_size, param_len, pf, rtd, sp; 6114 uint32_t initidx; 6115 6116 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 6117 switch (ctsio->cdb[0]) { 6118 case MODE_SELECT_6: { 6119 struct scsi_mode_select_6 *cdb; 6120 6121 cdb = (struct scsi_mode_select_6 *)ctsio->cdb; 6122 6123 pf = (cdb->byte2 & SMS_PF) ? 1 : 0; 6124 rtd = (cdb->byte2 & SMS_RTD) ? 1 : 0; 6125 sp = (cdb->byte2 & SMS_SP) ? 1 : 0; 6126 param_len = cdb->length; 6127 header_size = sizeof(struct scsi_mode_header_6); 6128 break; 6129 } 6130 case MODE_SELECT_10: { 6131 struct scsi_mode_select_10 *cdb; 6132 6133 cdb = (struct scsi_mode_select_10 *)ctsio->cdb; 6134 6135 pf = (cdb->byte2 & SMS_PF) ? 1 : 0; 6136 rtd = (cdb->byte2 & SMS_RTD) ? 1 : 0; 6137 sp = (cdb->byte2 & SMS_SP) ? 1 : 0; 6138 param_len = scsi_2btoul(cdb->length); 6139 header_size = sizeof(struct scsi_mode_header_10); 6140 break; 6141 } 6142 default: 6143 ctl_set_invalid_opcode(ctsio); 6144 ctl_done((union ctl_io *)ctsio); 6145 return (CTL_RETVAL_COMPLETE); 6146 } 6147 6148 if (rtd) { 6149 if (param_len != 0) { 6150 ctl_set_invalid_field(ctsio, /*sks_valid*/ 0, 6151 /*command*/ 1, /*field*/ 0, 6152 /*bit_valid*/ 0, /*bit*/ 0); 6153 ctl_done((union ctl_io *)ctsio); 6154 return (CTL_RETVAL_COMPLETE); 6155 } 6156 6157 /* Revert to defaults. */ 6158 ctl_init_page_index(lun); 6159 mtx_lock(&lun->lun_lock); 6160 ctl_est_ua_all(lun, initidx, CTL_UA_MODE_CHANGE); 6161 mtx_unlock(&lun->lun_lock); 6162 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6163 ctl_isc_announce_mode(lun, -1, 6164 lun->mode_pages.index[i].page_code & SMPH_PC_MASK, 6165 lun->mode_pages.index[i].subpage); 6166 } 6167 ctl_set_success(ctsio); 6168 ctl_done((union ctl_io *)ctsio); 6169 return (CTL_RETVAL_COMPLETE); 6170 } 6171 6172 /* 6173 * From SPC-3: 6174 * "A parameter list length of zero indicates that the Data-Out Buffer 6175 * shall be empty. This condition shall not be considered as an error." 6176 */ 6177 if (param_len == 0) { 6178 ctl_set_success(ctsio); 6179 ctl_done((union ctl_io *)ctsio); 6180 return (CTL_RETVAL_COMPLETE); 6181 } 6182 6183 /* 6184 * Since we'll hit this the first time through, prior to 6185 * allocation, we don't need to free a data buffer here. 6186 */ 6187 if (param_len < header_size) { 6188 ctl_set_param_len_error(ctsio); 6189 ctl_done((union ctl_io *)ctsio); 6190 return (CTL_RETVAL_COMPLETE); 6191 } 6192 6193 /* 6194 * Allocate the data buffer and grab the user's data. In theory, 6195 * we shouldn't have to sanity check the parameter list length here 6196 * because the maximum size is 64K. We should be able to malloc 6197 * that much without too many problems. 6198 */ 6199 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 6200 ctsio->kern_data_ptr = malloc(param_len, M_CTL, M_WAITOK); 6201 ctsio->kern_data_len = param_len; 6202 ctsio->kern_total_len = param_len; 6203 ctsio->kern_data_resid = 0; 6204 ctsio->kern_rel_offset = 0; 6205 ctsio->kern_sg_entries = 0; 6206 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6207 ctsio->be_move_done = ctl_config_move_done; 6208 ctl_datamove((union ctl_io *)ctsio); 6209 6210 return (CTL_RETVAL_COMPLETE); 6211 } 6212 6213 switch (ctsio->cdb[0]) { 6214 case MODE_SELECT_6: { 6215 struct scsi_mode_header_6 *mh6; 6216 6217 mh6 = (struct scsi_mode_header_6 *)ctsio->kern_data_ptr; 6218 bd_len = mh6->blk_desc_len; 6219 break; 6220 } 6221 case MODE_SELECT_10: { 6222 struct scsi_mode_header_10 *mh10; 6223 6224 mh10 = (struct scsi_mode_header_10 *)ctsio->kern_data_ptr; 6225 bd_len = scsi_2btoul(mh10->blk_desc_len); 6226 break; 6227 } 6228 default: 6229 panic("%s: Invalid CDB type %#x", __func__, ctsio->cdb[0]); 6230 } 6231 6232 if (param_len < (header_size + bd_len)) { 6233 free(ctsio->kern_data_ptr, M_CTL); 6234 ctl_set_param_len_error(ctsio); 6235 ctl_done((union ctl_io *)ctsio); 6236 return (CTL_RETVAL_COMPLETE); 6237 } 6238 6239 /* 6240 * Set the IO_CONT flag, so that if this I/O gets passed to 6241 * ctl_config_write_done(), it'll get passed back to 6242 * ctl_do_mode_select() for further processing, or completion if 6243 * we're all done. 6244 */ 6245 ctsio->io_hdr.flags |= CTL_FLAG_IO_CONT; 6246 ctsio->io_cont = ctl_do_mode_select; 6247 6248 modepage_info = (union ctl_modepage_info *) 6249 ctsio->io_hdr.ctl_private[CTL_PRIV_MODEPAGE].bytes; 6250 memset(modepage_info, 0, sizeof(*modepage_info)); 6251 modepage_info->header.len_left = param_len - header_size - bd_len; 6252 modepage_info->header.len_used = header_size + bd_len; 6253 6254 return (ctl_do_mode_select((union ctl_io *)ctsio)); 6255} 6256 6257int 6258ctl_mode_sense(struct ctl_scsiio *ctsio) 6259{ 6260 struct ctl_lun *lun = CTL_LUN(ctsio); 6261 int pc, page_code, dbd, llba, subpage; 6262 int alloc_len, page_len, header_len, total_len; 6263 struct scsi_mode_block_descr *block_desc; 6264 struct ctl_page_index *page_index; 6265 6266 dbd = 0; 6267 llba = 0; 6268 block_desc = NULL; 6269 6270 CTL_DEBUG_PRINT(("ctl_mode_sense\n")); 6271 6272 switch (ctsio->cdb[0]) { 6273 case MODE_SENSE_6: { 6274 struct scsi_mode_sense_6 *cdb; 6275 6276 cdb = (struct scsi_mode_sense_6 *)ctsio->cdb; 6277 6278 header_len = sizeof(struct scsi_mode_hdr_6); 6279 if (cdb->byte2 & SMS_DBD) 6280 dbd = 1; 6281 else 6282 header_len += sizeof(struct scsi_mode_block_descr); 6283 6284 pc = (cdb->page & SMS_PAGE_CTRL_MASK) >> 6; 6285 page_code = cdb->page & SMS_PAGE_CODE; 6286 subpage = cdb->subpage; 6287 alloc_len = cdb->length; 6288 break; 6289 } 6290 case MODE_SENSE_10: { 6291 struct scsi_mode_sense_10 *cdb; 6292 6293 cdb = (struct scsi_mode_sense_10 *)ctsio->cdb; 6294 6295 header_len = sizeof(struct scsi_mode_hdr_10); 6296 6297 if (cdb->byte2 & SMS_DBD) 6298 dbd = 1; 6299 else 6300 header_len += sizeof(struct scsi_mode_block_descr); 6301 if (cdb->byte2 & SMS10_LLBAA) 6302 llba = 1; 6303 pc = (cdb->page & SMS_PAGE_CTRL_MASK) >> 6; 6304 page_code = cdb->page & SMS_PAGE_CODE; 6305 subpage = cdb->subpage; 6306 alloc_len = scsi_2btoul(cdb->length); 6307 break; 6308 } 6309 default: 6310 ctl_set_invalid_opcode(ctsio); 6311 ctl_done((union ctl_io *)ctsio); 6312 return (CTL_RETVAL_COMPLETE); 6313 break; /* NOTREACHED */ 6314 } 6315 6316 /* 6317 * We have to make a first pass through to calculate the size of 6318 * the pages that match the user's query. Then we allocate enough 6319 * memory to hold it, and actually copy the data into the buffer. 6320 */ 6321 switch (page_code) { 6322 case SMS_ALL_PAGES_PAGE: { 6323 u_int i; 6324 6325 page_len = 0; 6326 6327 /* 6328 * At the moment, values other than 0 and 0xff here are 6329 * reserved according to SPC-3. 6330 */ 6331 if ((subpage != SMS_SUBPAGE_PAGE_0) 6332 && (subpage != SMS_SUBPAGE_ALL)) { 6333 ctl_set_invalid_field(ctsio, 6334 /*sks_valid*/ 1, 6335 /*command*/ 1, 6336 /*field*/ 3, 6337 /*bit_valid*/ 0, 6338 /*bit*/ 0); 6339 ctl_done((union ctl_io *)ctsio); 6340 return (CTL_RETVAL_COMPLETE); 6341 } 6342 6343 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6344 page_index = &lun->mode_pages.index[i]; 6345 6346 /* Make sure the page is supported for this dev type */ 6347 if (lun->be_lun->lun_type == T_DIRECT && 6348 (page_index->page_flags & CTL_PAGE_FLAG_DIRECT) == 0) 6349 continue; 6350 if (lun->be_lun->lun_type == T_PROCESSOR && 6351 (page_index->page_flags & CTL_PAGE_FLAG_PROC) == 0) 6352 continue; 6353 if (lun->be_lun->lun_type == T_CDROM && 6354 (page_index->page_flags & CTL_PAGE_FLAG_CDROM) == 0) 6355 continue; 6356 6357 /* 6358 * We don't use this subpage if the user didn't 6359 * request all subpages. 6360 */ 6361 if ((page_index->subpage != 0) 6362 && (subpage == SMS_SUBPAGE_PAGE_0)) 6363 continue; 6364 6365#if 0 6366 printf("found page %#x len %d\n", 6367 page_index->page_code & SMPH_PC_MASK, 6368 page_index->page_len); 6369#endif 6370 page_len += page_index->page_len; 6371 } 6372 break; 6373 } 6374 default: { 6375 u_int i; 6376 6377 page_len = 0; 6378 6379 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6380 page_index = &lun->mode_pages.index[i]; 6381 6382 /* Make sure the page is supported for this dev type */ 6383 if (lun->be_lun->lun_type == T_DIRECT && 6384 (page_index->page_flags & CTL_PAGE_FLAG_DIRECT) == 0) 6385 continue; 6386 if (lun->be_lun->lun_type == T_PROCESSOR && 6387 (page_index->page_flags & CTL_PAGE_FLAG_PROC) == 0) 6388 continue; 6389 if (lun->be_lun->lun_type == T_CDROM && 6390 (page_index->page_flags & CTL_PAGE_FLAG_CDROM) == 0) 6391 continue; 6392 6393 /* Look for the right page code */ 6394 if ((page_index->page_code & SMPH_PC_MASK) != page_code) 6395 continue; 6396 6397 /* Look for the right subpage or the subpage wildcard*/ 6398 if ((page_index->subpage != subpage) 6399 && (subpage != SMS_SUBPAGE_ALL)) 6400 continue; 6401 6402#if 0 6403 printf("found page %#x len %d\n", 6404 page_index->page_code & SMPH_PC_MASK, 6405 page_index->page_len); 6406#endif 6407 6408 page_len += page_index->page_len; 6409 } 6410 6411 if (page_len == 0) { 6412 ctl_set_invalid_field(ctsio, 6413 /*sks_valid*/ 1, 6414 /*command*/ 1, 6415 /*field*/ 2, 6416 /*bit_valid*/ 1, 6417 /*bit*/ 5); 6418 ctl_done((union ctl_io *)ctsio); 6419 return (CTL_RETVAL_COMPLETE); 6420 } 6421 break; 6422 } 6423 } 6424 6425 total_len = header_len + page_len; 6426#if 0 6427 printf("header_len = %d, page_len = %d, total_len = %d\n", 6428 header_len, page_len, total_len); 6429#endif 6430 6431 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 6432 ctsio->kern_sg_entries = 0; 6433 ctsio->kern_data_resid = 0; 6434 ctsio->kern_rel_offset = 0; 6435 if (total_len < alloc_len) { 6436 ctsio->residual = alloc_len - total_len; 6437 ctsio->kern_data_len = total_len; 6438 ctsio->kern_total_len = total_len; 6439 } else { 6440 ctsio->residual = 0; 6441 ctsio->kern_data_len = alloc_len; 6442 ctsio->kern_total_len = alloc_len; 6443 } 6444 6445 switch (ctsio->cdb[0]) { 6446 case MODE_SENSE_6: { 6447 struct scsi_mode_hdr_6 *header; 6448 6449 header = (struct scsi_mode_hdr_6 *)ctsio->kern_data_ptr; 6450 6451 header->datalen = MIN(total_len - 1, 254); 6452 if (lun->be_lun->lun_type == T_DIRECT) { 6453 header->dev_specific = 0x10; /* DPOFUA */ 6454 if ((lun->be_lun->flags & CTL_LUN_FLAG_READONLY) || 6455 (lun->MODE_CTRL.eca_and_aen & SCP_SWP) != 0) 6456 header->dev_specific |= 0x80; /* WP */ 6457 } 6458 if (dbd) 6459 header->block_descr_len = 0; 6460 else 6461 header->block_descr_len = 6462 sizeof(struct scsi_mode_block_descr); 6463 block_desc = (struct scsi_mode_block_descr *)&header[1]; 6464 break; 6465 } 6466 case MODE_SENSE_10: { 6467 struct scsi_mode_hdr_10 *header; 6468 int datalen; 6469 6470 header = (struct scsi_mode_hdr_10 *)ctsio->kern_data_ptr; 6471 6472 datalen = MIN(total_len - 2, 65533); 6473 scsi_ulto2b(datalen, header->datalen); 6474 if (lun->be_lun->lun_type == T_DIRECT) { 6475 header->dev_specific = 0x10; /* DPOFUA */ 6476 if ((lun->be_lun->flags & CTL_LUN_FLAG_READONLY) || 6477 (lun->MODE_CTRL.eca_and_aen & SCP_SWP) != 0) 6478 header->dev_specific |= 0x80; /* WP */ 6479 } 6480 if (dbd) 6481 scsi_ulto2b(0, header->block_descr_len); 6482 else 6483 scsi_ulto2b(sizeof(struct scsi_mode_block_descr), 6484 header->block_descr_len); 6485 block_desc = (struct scsi_mode_block_descr *)&header[1]; 6486 break; 6487 } 6488 default: 6489 panic("%s: Invalid CDB type %#x", __func__, ctsio->cdb[0]); 6490 } 6491 6492 /* 6493 * If we've got a disk, use its blocksize in the block 6494 * descriptor. Otherwise, just set it to 0. 6495 */ 6496 if (dbd == 0) { 6497 if (lun->be_lun->lun_type == T_DIRECT) 6498 scsi_ulto3b(lun->be_lun->blocksize, 6499 block_desc->block_len); 6500 else 6501 scsi_ulto3b(0, block_desc->block_len); 6502 } 6503 6504 switch (page_code) { 6505 case SMS_ALL_PAGES_PAGE: { 6506 int i, data_used; 6507 6508 data_used = header_len; 6509 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6510 struct ctl_page_index *page_index; 6511 6512 page_index = &lun->mode_pages.index[i]; 6513 if (lun->be_lun->lun_type == T_DIRECT && 6514 (page_index->page_flags & CTL_PAGE_FLAG_DIRECT) == 0) 6515 continue; 6516 if (lun->be_lun->lun_type == T_PROCESSOR && 6517 (page_index->page_flags & CTL_PAGE_FLAG_PROC) == 0) 6518 continue; 6519 if (lun->be_lun->lun_type == T_CDROM && 6520 (page_index->page_flags & CTL_PAGE_FLAG_CDROM) == 0) 6521 continue; 6522 6523 /* 6524 * We don't use this subpage if the user didn't 6525 * request all subpages. We already checked (above) 6526 * to make sure the user only specified a subpage 6527 * of 0 or 0xff in the SMS_ALL_PAGES_PAGE case. 6528 */ 6529 if ((page_index->subpage != 0) 6530 && (subpage == SMS_SUBPAGE_PAGE_0)) 6531 continue; 6532 6533 /* 6534 * Call the handler, if it exists, to update the 6535 * page to the latest values. 6536 */ 6537 if (page_index->sense_handler != NULL) 6538 page_index->sense_handler(ctsio, page_index,pc); 6539 6540 memcpy(ctsio->kern_data_ptr + data_used, 6541 page_index->page_data + 6542 (page_index->page_len * pc), 6543 page_index->page_len); 6544 data_used += page_index->page_len; 6545 } 6546 break; 6547 } 6548 default: { 6549 int i, data_used; 6550 6551 data_used = header_len; 6552 6553 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6554 struct ctl_page_index *page_index; 6555 6556 page_index = &lun->mode_pages.index[i]; 6557 6558 /* Look for the right page code */ 6559 if ((page_index->page_code & SMPH_PC_MASK) != page_code) 6560 continue; 6561 6562 /* Look for the right subpage or the subpage wildcard*/ 6563 if ((page_index->subpage != subpage) 6564 && (subpage != SMS_SUBPAGE_ALL)) 6565 continue; 6566 6567 /* Make sure the page is supported for this dev type */ 6568 if (lun->be_lun->lun_type == T_DIRECT && 6569 (page_index->page_flags & CTL_PAGE_FLAG_DIRECT) == 0) 6570 continue; 6571 if (lun->be_lun->lun_type == T_PROCESSOR && 6572 (page_index->page_flags & CTL_PAGE_FLAG_PROC) == 0) 6573 continue; 6574 if (lun->be_lun->lun_type == T_CDROM && 6575 (page_index->page_flags & CTL_PAGE_FLAG_CDROM) == 0) 6576 continue; 6577 6578 /* 6579 * Call the handler, if it exists, to update the 6580 * page to the latest values. 6581 */ 6582 if (page_index->sense_handler != NULL) 6583 page_index->sense_handler(ctsio, page_index,pc); 6584 6585 memcpy(ctsio->kern_data_ptr + data_used, 6586 page_index->page_data + 6587 (page_index->page_len * pc), 6588 page_index->page_len); 6589 data_used += page_index->page_len; 6590 } 6591 break; 6592 } 6593 } 6594 6595 ctl_set_success(ctsio); 6596 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6597 ctsio->be_move_done = ctl_config_move_done; 6598 ctl_datamove((union ctl_io *)ctsio); 6599 return (CTL_RETVAL_COMPLETE); 6600} 6601 6602int 6603ctl_lbp_log_sense_handler(struct ctl_scsiio *ctsio, 6604 struct ctl_page_index *page_index, 6605 int pc) 6606{ 6607 struct ctl_lun *lun = CTL_LUN(ctsio); 6608 struct scsi_log_param_header *phdr; 6609 uint8_t *data; 6610 uint64_t val; 6611 6612 data = page_index->page_data; 6613 6614 if (lun->backend->lun_attr != NULL && 6615 (val = lun->backend->lun_attr(lun->be_lun->be_lun, "blocksavail")) 6616 != UINT64_MAX) { 6617 phdr = (struct scsi_log_param_header *)data; 6618 scsi_ulto2b(0x0001, phdr->param_code); 6619 phdr->param_control = SLP_LBIN | SLP_LP; 6620 phdr->param_len = 8; 6621 data = (uint8_t *)(phdr + 1); 6622 scsi_ulto4b(val >> CTL_LBP_EXPONENT, data); 6623 data[4] = 0x02; /* per-pool */ 6624 data += phdr->param_len; 6625 } 6626 6627 if (lun->backend->lun_attr != NULL && 6628 (val = lun->backend->lun_attr(lun->be_lun->be_lun, "blocksused")) 6629 != UINT64_MAX) { 6630 phdr = (struct scsi_log_param_header *)data; 6631 scsi_ulto2b(0x0002, phdr->param_code); 6632 phdr->param_control = SLP_LBIN | SLP_LP; 6633 phdr->param_len = 8; 6634 data = (uint8_t *)(phdr + 1); 6635 scsi_ulto4b(val >> CTL_LBP_EXPONENT, data); 6636 data[4] = 0x01; /* per-LUN */ 6637 data += phdr->param_len; 6638 } 6639 6640 if (lun->backend->lun_attr != NULL && 6641 (val = lun->backend->lun_attr(lun->be_lun->be_lun, "poolblocksavail")) 6642 != UINT64_MAX) { 6643 phdr = (struct scsi_log_param_header *)data; 6644 scsi_ulto2b(0x00f1, phdr->param_code); 6645 phdr->param_control = SLP_LBIN | SLP_LP; 6646 phdr->param_len = 8; 6647 data = (uint8_t *)(phdr + 1); 6648 scsi_ulto4b(val >> CTL_LBP_EXPONENT, data); 6649 data[4] = 0x02; /* per-pool */ 6650 data += phdr->param_len; 6651 } 6652 6653 if (lun->backend->lun_attr != NULL && 6654 (val = lun->backend->lun_attr(lun->be_lun->be_lun, "poolblocksused")) 6655 != UINT64_MAX) { 6656 phdr = (struct scsi_log_param_header *)data; 6657 scsi_ulto2b(0x00f2, phdr->param_code); 6658 phdr->param_control = SLP_LBIN | SLP_LP; 6659 phdr->param_len = 8; 6660 data = (uint8_t *)(phdr + 1); 6661 scsi_ulto4b(val >> CTL_LBP_EXPONENT, data); 6662 data[4] = 0x02; /* per-pool */ 6663 data += phdr->param_len; 6664 } 6665 6666 page_index->page_len = data - page_index->page_data; 6667 return (0); 6668} 6669 6670int 6671ctl_sap_log_sense_handler(struct ctl_scsiio *ctsio, 6672 struct ctl_page_index *page_index, 6673 int pc) 6674{ 6675 struct ctl_lun *lun = CTL_LUN(ctsio); 6676 struct stat_page *data; 6677 uint64_t rn, wn, rb, wb; 6678 struct bintime rt, wt; 6679 int i; 6680 6681 data = (struct stat_page *)page_index->page_data; 6682 6683 scsi_ulto2b(SLP_SAP, data->sap.hdr.param_code); 6684 data->sap.hdr.param_control = SLP_LBIN; 6685 data->sap.hdr.param_len = sizeof(struct scsi_log_stat_and_perf) - 6686 sizeof(struct scsi_log_param_header); 6687 rn = wn = rb = wb = 0; 6688 bintime_clear(&rt); 6689 bintime_clear(&wt); 6690 for (i = 0; i < CTL_MAX_PORTS; i++) { 6691 rn += lun->stats.ports[i].operations[CTL_STATS_READ]; 6692 wn += lun->stats.ports[i].operations[CTL_STATS_WRITE]; 6693 rb += lun->stats.ports[i].bytes[CTL_STATS_READ]; 6694 wb += lun->stats.ports[i].bytes[CTL_STATS_WRITE]; 6695 bintime_add(&rt, &lun->stats.ports[i].time[CTL_STATS_READ]); 6696 bintime_add(&wt, &lun->stats.ports[i].time[CTL_STATS_WRITE]); 6697 } 6698 scsi_u64to8b(rn, data->sap.read_num); 6699 scsi_u64to8b(wn, data->sap.write_num); 6700 if (lun->stats.blocksize > 0) { 6701 scsi_u64to8b(wb / lun->stats.blocksize, 6702 data->sap.recvieved_lba); 6703 scsi_u64to8b(rb / lun->stats.blocksize, 6704 data->sap.transmitted_lba); 6705 } 6706 scsi_u64to8b((uint64_t)rt.sec * 1000 + rt.frac / (UINT64_MAX / 1000), 6707 data->sap.read_int); 6708 scsi_u64to8b((uint64_t)wt.sec * 1000 + wt.frac / (UINT64_MAX / 1000), 6709 data->sap.write_int); 6710 scsi_u64to8b(0, data->sap.weighted_num); 6711 scsi_u64to8b(0, data->sap.weighted_int); 6712 scsi_ulto2b(SLP_IT, data->it.hdr.param_code); 6713 data->it.hdr.param_control = SLP_LBIN; 6714 data->it.hdr.param_len = sizeof(struct scsi_log_idle_time) - 6715 sizeof(struct scsi_log_param_header); 6716#ifdef CTL_TIME_IO 6717 scsi_u64to8b(lun->idle_time / SBT_1MS, data->it.idle_int); 6718#endif 6719 scsi_ulto2b(SLP_TI, data->ti.hdr.param_code); 6720 data->it.hdr.param_control = SLP_LBIN; 6721 data->ti.hdr.param_len = sizeof(struct scsi_log_time_interval) - 6722 sizeof(struct scsi_log_param_header); 6723 scsi_ulto4b(3, data->ti.exponent); 6724 scsi_ulto4b(1, data->ti.integer); 6725 return (0); 6726} 6727 6728int 6729ctl_ie_log_sense_handler(struct ctl_scsiio *ctsio, 6730 struct ctl_page_index *page_index, 6731 int pc) 6732{ 6733 struct ctl_lun *lun = CTL_LUN(ctsio); 6734 struct scsi_log_informational_exceptions *data; 6735 6736 data = (struct scsi_log_informational_exceptions *)page_index->page_data; 6737 6738 scsi_ulto2b(SLP_IE_GEN, data->hdr.param_code); 6739 data->hdr.param_control = SLP_LBIN; 6740 data->hdr.param_len = sizeof(struct scsi_log_informational_exceptions) - 6741 sizeof(struct scsi_log_param_header); 6742 data->ie_asc = lun->ie_asc; 6743 data->ie_ascq = lun->ie_ascq; 6744 data->temperature = 0xff; 6745 return (0); 6746} 6747 6748int 6749ctl_log_sense(struct ctl_scsiio *ctsio) 6750{ 6751 struct ctl_lun *lun = CTL_LUN(ctsio); 6752 int i, pc, page_code, subpage; 6753 int alloc_len, total_len; 6754 struct ctl_page_index *page_index; 6755 struct scsi_log_sense *cdb; 6756 struct scsi_log_header *header; 6757 6758 CTL_DEBUG_PRINT(("ctl_log_sense\n")); 6759 6760 cdb = (struct scsi_log_sense *)ctsio->cdb; 6761 pc = (cdb->page & SLS_PAGE_CTRL_MASK) >> 6; 6762 page_code = cdb->page & SLS_PAGE_CODE; 6763 subpage = cdb->subpage; 6764 alloc_len = scsi_2btoul(cdb->length); 6765 6766 page_index = NULL; 6767 for (i = 0; i < CTL_NUM_LOG_PAGES; i++) { 6768 page_index = &lun->log_pages.index[i]; 6769 6770 /* Look for the right page code */ 6771 if ((page_index->page_code & SL_PAGE_CODE) != page_code) 6772 continue; 6773 6774 /* Look for the right subpage or the subpage wildcard*/ 6775 if (page_index->subpage != subpage) 6776 continue; 6777 6778 break; 6779 } 6780 if (i >= CTL_NUM_LOG_PAGES) { 6781 ctl_set_invalid_field(ctsio, 6782 /*sks_valid*/ 1, 6783 /*command*/ 1, 6784 /*field*/ 2, 6785 /*bit_valid*/ 0, 6786 /*bit*/ 0); 6787 ctl_done((union ctl_io *)ctsio); 6788 return (CTL_RETVAL_COMPLETE); 6789 } 6790 6791 total_len = sizeof(struct scsi_log_header) + page_index->page_len; 6792 6793 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 6794 ctsio->kern_sg_entries = 0; 6795 ctsio->kern_data_resid = 0; 6796 ctsio->kern_rel_offset = 0; 6797 if (total_len < alloc_len) { 6798 ctsio->residual = alloc_len - total_len; 6799 ctsio->kern_data_len = total_len; 6800 ctsio->kern_total_len = total_len; 6801 } else { 6802 ctsio->residual = 0; 6803 ctsio->kern_data_len = alloc_len; 6804 ctsio->kern_total_len = alloc_len; 6805 } 6806 6807 header = (struct scsi_log_header *)ctsio->kern_data_ptr; 6808 header->page = page_index->page_code; 6809 if (page_index->page_code == SLS_LOGICAL_BLOCK_PROVISIONING) 6810 header->page |= SL_DS; 6811 if (page_index->subpage) { 6812 header->page |= SL_SPF; 6813 header->subpage = page_index->subpage; 6814 } 6815 scsi_ulto2b(page_index->page_len, header->datalen); 6816 6817 /* 6818 * Call the handler, if it exists, to update the 6819 * page to the latest values. 6820 */ 6821 if (page_index->sense_handler != NULL) 6822 page_index->sense_handler(ctsio, page_index, pc); 6823 6824 memcpy(header + 1, page_index->page_data, page_index->page_len); 6825 6826 ctl_set_success(ctsio); 6827 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6828 ctsio->be_move_done = ctl_config_move_done; 6829 ctl_datamove((union ctl_io *)ctsio); 6830 return (CTL_RETVAL_COMPLETE); 6831} 6832 6833int 6834ctl_read_capacity(struct ctl_scsiio *ctsio) 6835{ 6836 struct ctl_lun *lun = CTL_LUN(ctsio); 6837 struct scsi_read_capacity *cdb; 6838 struct scsi_read_capacity_data *data; 6839 uint32_t lba; 6840 6841 CTL_DEBUG_PRINT(("ctl_read_capacity\n")); 6842 6843 cdb = (struct scsi_read_capacity *)ctsio->cdb; 6844 6845 lba = scsi_4btoul(cdb->addr); 6846 if (((cdb->pmi & SRC_PMI) == 0) 6847 && (lba != 0)) { 6848 ctl_set_invalid_field(/*ctsio*/ ctsio, 6849 /*sks_valid*/ 1, 6850 /*command*/ 1, 6851 /*field*/ 2, 6852 /*bit_valid*/ 0, 6853 /*bit*/ 0); 6854 ctl_done((union ctl_io *)ctsio); 6855 return (CTL_RETVAL_COMPLETE); 6856 } 6857 6858 ctsio->kern_data_ptr = malloc(sizeof(*data), M_CTL, M_WAITOK | M_ZERO); 6859 data = (struct scsi_read_capacity_data *)ctsio->kern_data_ptr; 6860 ctsio->residual = 0; 6861 ctsio->kern_data_len = sizeof(*data); 6862 ctsio->kern_total_len = sizeof(*data); 6863 ctsio->kern_data_resid = 0; 6864 ctsio->kern_rel_offset = 0; 6865 ctsio->kern_sg_entries = 0; 6866 6867 /* 6868 * If the maximum LBA is greater than 0xfffffffe, the user must 6869 * issue a SERVICE ACTION IN (16) command, with the read capacity 6870 * serivce action set. 6871 */ 6872 if (lun->be_lun->maxlba > 0xfffffffe) 6873 scsi_ulto4b(0xffffffff, data->addr); 6874 else 6875 scsi_ulto4b(lun->be_lun->maxlba, data->addr); 6876 6877 /* 6878 * XXX KDM this may not be 512 bytes... 6879 */ 6880 scsi_ulto4b(lun->be_lun->blocksize, data->length); 6881 6882 ctl_set_success(ctsio); 6883 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6884 ctsio->be_move_done = ctl_config_move_done; 6885 ctl_datamove((union ctl_io *)ctsio); 6886 return (CTL_RETVAL_COMPLETE); 6887} 6888 6889int 6890ctl_read_capacity_16(struct ctl_scsiio *ctsio) 6891{ 6892 struct ctl_lun *lun = CTL_LUN(ctsio); 6893 struct scsi_read_capacity_16 *cdb; 6894 struct scsi_read_capacity_data_long *data; 6895 uint64_t lba; 6896 uint32_t alloc_len; 6897 6898 CTL_DEBUG_PRINT(("ctl_read_capacity_16\n")); 6899 6900 cdb = (struct scsi_read_capacity_16 *)ctsio->cdb; 6901 6902 alloc_len = scsi_4btoul(cdb->alloc_len); 6903 lba = scsi_8btou64(cdb->addr); 6904 6905 if ((cdb->reladr & SRC16_PMI) 6906 && (lba != 0)) { 6907 ctl_set_invalid_field(/*ctsio*/ ctsio, 6908 /*sks_valid*/ 1, 6909 /*command*/ 1, 6910 /*field*/ 2, 6911 /*bit_valid*/ 0, 6912 /*bit*/ 0); 6913 ctl_done((union ctl_io *)ctsio); 6914 return (CTL_RETVAL_COMPLETE); 6915 } 6916 6917 ctsio->kern_data_ptr = malloc(sizeof(*data), M_CTL, M_WAITOK | M_ZERO); 6918 data = (struct scsi_read_capacity_data_long *)ctsio->kern_data_ptr; 6919 6920 if (sizeof(*data) < alloc_len) { 6921 ctsio->residual = alloc_len - sizeof(*data); 6922 ctsio->kern_data_len = sizeof(*data); 6923 ctsio->kern_total_len = sizeof(*data); 6924 } else { 6925 ctsio->residual = 0; 6926 ctsio->kern_data_len = alloc_len; 6927 ctsio->kern_total_len = alloc_len; 6928 } 6929 ctsio->kern_data_resid = 0; 6930 ctsio->kern_rel_offset = 0; 6931 ctsio->kern_sg_entries = 0; 6932 6933 scsi_u64to8b(lun->be_lun->maxlba, data->addr); 6934 /* XXX KDM this may not be 512 bytes... */ 6935 scsi_ulto4b(lun->be_lun->blocksize, data->length); 6936 data->prot_lbppbe = lun->be_lun->pblockexp & SRC16_LBPPBE; 6937 scsi_ulto2b(lun->be_lun->pblockoff & SRC16_LALBA_A, data->lalba_lbp); 6938 if (lun->be_lun->flags & CTL_LUN_FLAG_UNMAP) 6939 data->lalba_lbp[0] |= SRC16_LBPME | SRC16_LBPRZ; 6940 6941 ctl_set_success(ctsio); 6942 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6943 ctsio->be_move_done = ctl_config_move_done; 6944 ctl_datamove((union ctl_io *)ctsio); 6945 return (CTL_RETVAL_COMPLETE); 6946} 6947 6948int 6949ctl_get_lba_status(struct ctl_scsiio *ctsio) 6950{ 6951 struct ctl_lun *lun = CTL_LUN(ctsio); 6952 struct scsi_get_lba_status *cdb; 6953 struct scsi_get_lba_status_data *data; 6954 struct ctl_lba_len_flags *lbalen; 6955 uint64_t lba; 6956 uint32_t alloc_len, total_len; 6957 int retval; 6958 6959 CTL_DEBUG_PRINT(("ctl_get_lba_status\n")); 6960 6961 cdb = (struct scsi_get_lba_status *)ctsio->cdb; 6962 lba = scsi_8btou64(cdb->addr); 6963 alloc_len = scsi_4btoul(cdb->alloc_len); 6964 6965 if (lba > lun->be_lun->maxlba) { 6966 ctl_set_lba_out_of_range(ctsio, lba); 6967 ctl_done((union ctl_io *)ctsio); 6968 return (CTL_RETVAL_COMPLETE); 6969 } 6970 6971 total_len = sizeof(*data) + sizeof(data->descr[0]); 6972 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 6973 data = (struct scsi_get_lba_status_data *)ctsio->kern_data_ptr; 6974 6975 if (total_len < alloc_len) { 6976 ctsio->residual = alloc_len - total_len; 6977 ctsio->kern_data_len = total_len; 6978 ctsio->kern_total_len = total_len; 6979 } else { 6980 ctsio->residual = 0; 6981 ctsio->kern_data_len = alloc_len; 6982 ctsio->kern_total_len = alloc_len; 6983 } 6984 ctsio->kern_data_resid = 0; 6985 ctsio->kern_rel_offset = 0; 6986 ctsio->kern_sg_entries = 0; 6987 6988 /* Fill dummy data in case backend can't tell anything. */ 6989 scsi_ulto4b(4 + sizeof(data->descr[0]), data->length); 6990 scsi_u64to8b(lba, data->descr[0].addr); 6991 scsi_ulto4b(MIN(UINT32_MAX, lun->be_lun->maxlba + 1 - lba), 6992 data->descr[0].length); 6993 data->descr[0].status = 0; /* Mapped or unknown. */ 6994 6995 ctl_set_success(ctsio); 6996 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6997 ctsio->be_move_done = ctl_config_move_done; 6998 6999 lbalen = (struct ctl_lba_len_flags *)&ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 7000 lbalen->lba = lba; 7001 lbalen->len = total_len; 7002 lbalen->flags = 0; 7003 retval = lun->backend->config_read((union ctl_io *)ctsio); 7004 return (CTL_RETVAL_COMPLETE); 7005} 7006 7007int 7008ctl_read_defect(struct ctl_scsiio *ctsio) 7009{ 7010 struct scsi_read_defect_data_10 *ccb10; 7011 struct scsi_read_defect_data_12 *ccb12; 7012 struct scsi_read_defect_data_hdr_10 *data10; 7013 struct scsi_read_defect_data_hdr_12 *data12; 7014 uint32_t alloc_len, data_len; 7015 uint8_t format; 7016 7017 CTL_DEBUG_PRINT(("ctl_read_defect\n")); 7018 7019 if (ctsio->cdb[0] == READ_DEFECT_DATA_10) { 7020 ccb10 = (struct scsi_read_defect_data_10 *)&ctsio->cdb; 7021 format = ccb10->format; 7022 alloc_len = scsi_2btoul(ccb10->alloc_length); 7023 data_len = sizeof(*data10); 7024 } else { 7025 ccb12 = (struct scsi_read_defect_data_12 *)&ctsio->cdb; 7026 format = ccb12->format; 7027 alloc_len = scsi_4btoul(ccb12->alloc_length); 7028 data_len = sizeof(*data12); 7029 } 7030 if (alloc_len == 0) { 7031 ctl_set_success(ctsio); 7032 ctl_done((union ctl_io *)ctsio); 7033 return (CTL_RETVAL_COMPLETE); 7034 } 7035 7036 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 7037 if (data_len < alloc_len) { 7038 ctsio->residual = alloc_len - data_len; 7039 ctsio->kern_data_len = data_len; 7040 ctsio->kern_total_len = data_len; 7041 } else { 7042 ctsio->residual = 0; 7043 ctsio->kern_data_len = alloc_len; 7044 ctsio->kern_total_len = alloc_len; 7045 } 7046 ctsio->kern_data_resid = 0; 7047 ctsio->kern_rel_offset = 0; 7048 ctsio->kern_sg_entries = 0; 7049 7050 if (ctsio->cdb[0] == READ_DEFECT_DATA_10) { 7051 data10 = (struct scsi_read_defect_data_hdr_10 *) 7052 ctsio->kern_data_ptr; 7053 data10->format = format; 7054 scsi_ulto2b(0, data10->length); 7055 } else { 7056 data12 = (struct scsi_read_defect_data_hdr_12 *) 7057 ctsio->kern_data_ptr; 7058 data12->format = format; 7059 scsi_ulto2b(0, data12->generation); 7060 scsi_ulto4b(0, data12->length); 7061 } 7062 7063 ctl_set_success(ctsio); 7064 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7065 ctsio->be_move_done = ctl_config_move_done; 7066 ctl_datamove((union ctl_io *)ctsio); 7067 return (CTL_RETVAL_COMPLETE); 7068} 7069 7070int 7071ctl_report_tagret_port_groups(struct ctl_scsiio *ctsio) 7072{ 7073 struct ctl_softc *softc = CTL_SOFTC(ctsio); 7074 struct ctl_lun *lun = CTL_LUN(ctsio); 7075 struct scsi_maintenance_in *cdb; 7076 int retval; 7077 int alloc_len, ext, total_len = 0, g, pc, pg, ts, os; 7078 int num_ha_groups, num_target_ports, shared_group; 7079 struct ctl_port *port; 7080 struct scsi_target_group_data *rtg_ptr; 7081 struct scsi_target_group_data_extended *rtg_ext_ptr; 7082 struct scsi_target_port_group_descriptor *tpg_desc; 7083 7084 CTL_DEBUG_PRINT(("ctl_report_tagret_port_groups\n")); 7085 7086 cdb = (struct scsi_maintenance_in *)ctsio->cdb; 7087 retval = CTL_RETVAL_COMPLETE; 7088 7089 switch (cdb->byte2 & STG_PDF_MASK) { 7090 case STG_PDF_LENGTH: 7091 ext = 0; 7092 break; 7093 case STG_PDF_EXTENDED: 7094 ext = 1; 7095 break; 7096 default: 7097 ctl_set_invalid_field(/*ctsio*/ ctsio, 7098 /*sks_valid*/ 1, 7099 /*command*/ 1, 7100 /*field*/ 2, 7101 /*bit_valid*/ 1, 7102 /*bit*/ 5); 7103 ctl_done((union ctl_io *)ctsio); 7104 return(retval); 7105 } 7106 7107 num_target_ports = 0; 7108 shared_group = (softc->is_single != 0); 7109 mtx_lock(&softc->ctl_lock); 7110 STAILQ_FOREACH(port, &softc->port_list, links) { 7111 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 7112 continue; 7113 if (ctl_lun_map_to_port(port, lun->lun) == UINT32_MAX) 7114 continue; 7115 num_target_ports++; 7116 if (port->status & CTL_PORT_STATUS_HA_SHARED) 7117 shared_group = 1; 7118 } 7119 mtx_unlock(&softc->ctl_lock); 7120 num_ha_groups = (softc->is_single) ? 0 : NUM_HA_SHELVES; 7121 7122 if (ext) 7123 total_len = sizeof(struct scsi_target_group_data_extended); 7124 else 7125 total_len = sizeof(struct scsi_target_group_data); 7126 total_len += sizeof(struct scsi_target_port_group_descriptor) * 7127 (shared_group + num_ha_groups) + 7128 sizeof(struct scsi_target_port_descriptor) * num_target_ports; 7129 7130 alloc_len = scsi_4btoul(cdb->length); 7131 7132 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7133 7134 ctsio->kern_sg_entries = 0; 7135 7136 if (total_len < alloc_len) { 7137 ctsio->residual = alloc_len - total_len; 7138 ctsio->kern_data_len = total_len; 7139 ctsio->kern_total_len = total_len; 7140 } else { 7141 ctsio->residual = 0; 7142 ctsio->kern_data_len = alloc_len; 7143 ctsio->kern_total_len = alloc_len; 7144 } 7145 ctsio->kern_data_resid = 0; 7146 ctsio->kern_rel_offset = 0; 7147 7148 if (ext) { 7149 rtg_ext_ptr = (struct scsi_target_group_data_extended *) 7150 ctsio->kern_data_ptr; 7151 scsi_ulto4b(total_len - 4, rtg_ext_ptr->length); 7152 rtg_ext_ptr->format_type = 0x10; 7153 rtg_ext_ptr->implicit_transition_time = 0; 7154 tpg_desc = &rtg_ext_ptr->groups[0]; 7155 } else { 7156 rtg_ptr = (struct scsi_target_group_data *) 7157 ctsio->kern_data_ptr; 7158 scsi_ulto4b(total_len - 4, rtg_ptr->length); 7159 tpg_desc = &rtg_ptr->groups[0]; 7160 } 7161 7162 mtx_lock(&softc->ctl_lock); 7163 pg = softc->port_min / softc->port_cnt; 7164 if (lun->flags & (CTL_LUN_PRIMARY_SC | CTL_LUN_PEER_SC_PRIMARY)) { 7165 /* Some shelf is known to be primary. */ 7166 if (softc->ha_link == CTL_HA_LINK_OFFLINE) 7167 os = TPG_ASYMMETRIC_ACCESS_UNAVAILABLE; 7168 else if (softc->ha_link == CTL_HA_LINK_UNKNOWN) 7169 os = TPG_ASYMMETRIC_ACCESS_TRANSITIONING; 7170 else if (softc->ha_mode == CTL_HA_MODE_ACT_STBY) 7171 os = TPG_ASYMMETRIC_ACCESS_STANDBY; 7172 else 7173 os = TPG_ASYMMETRIC_ACCESS_NONOPTIMIZED; 7174 if (lun->flags & CTL_LUN_PRIMARY_SC) { 7175 ts = TPG_ASYMMETRIC_ACCESS_OPTIMIZED; 7176 } else { 7177 ts = os; 7178 os = TPG_ASYMMETRIC_ACCESS_OPTIMIZED; 7179 } 7180 } else { 7181 /* No known primary shelf. */ 7182 if (softc->ha_link == CTL_HA_LINK_OFFLINE) { 7183 ts = TPG_ASYMMETRIC_ACCESS_UNAVAILABLE; 7184 os = TPG_ASYMMETRIC_ACCESS_OPTIMIZED; 7185 } else if (softc->ha_link == CTL_HA_LINK_UNKNOWN) { 7186 ts = TPG_ASYMMETRIC_ACCESS_TRANSITIONING; 7187 os = TPG_ASYMMETRIC_ACCESS_OPTIMIZED; 7188 } else { 7189 ts = os = TPG_ASYMMETRIC_ACCESS_TRANSITIONING; 7190 } 7191 } 7192 if (shared_group) { 7193 tpg_desc->pref_state = ts; 7194 tpg_desc->support = TPG_AO_SUP | TPG_AN_SUP | TPG_S_SUP | 7195 TPG_U_SUP | TPG_T_SUP; 7196 scsi_ulto2b(1, tpg_desc->target_port_group); 7197 tpg_desc->status = TPG_IMPLICIT; 7198 pc = 0; 7199 STAILQ_FOREACH(port, &softc->port_list, links) { 7200 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 7201 continue; 7202 if (!softc->is_single && 7203 (port->status & CTL_PORT_STATUS_HA_SHARED) == 0) 7204 continue; 7205 if (ctl_lun_map_to_port(port, lun->lun) == UINT32_MAX) 7206 continue; 7207 scsi_ulto2b(port->targ_port, tpg_desc->descriptors[pc]. 7208 relative_target_port_identifier); 7209 pc++; 7210 } 7211 tpg_desc->target_port_count = pc; 7212 tpg_desc = (struct scsi_target_port_group_descriptor *) 7213 &tpg_desc->descriptors[pc]; 7214 } 7215 for (g = 0; g < num_ha_groups; g++) { 7216 tpg_desc->pref_state = (g == pg) ? ts : os; 7217 tpg_desc->support = TPG_AO_SUP | TPG_AN_SUP | TPG_S_SUP | 7218 TPG_U_SUP | TPG_T_SUP; 7219 scsi_ulto2b(2 + g, tpg_desc->target_port_group); 7220 tpg_desc->status = TPG_IMPLICIT; 7221 pc = 0; 7222 STAILQ_FOREACH(port, &softc->port_list, links) { 7223 if (port->targ_port < g * softc->port_cnt || 7224 port->targ_port >= (g + 1) * softc->port_cnt) 7225 continue; 7226 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 7227 continue; 7228 if (port->status & CTL_PORT_STATUS_HA_SHARED) 7229 continue; 7230 if (ctl_lun_map_to_port(port, lun->lun) == UINT32_MAX) 7231 continue; 7232 scsi_ulto2b(port->targ_port, tpg_desc->descriptors[pc]. 7233 relative_target_port_identifier); 7234 pc++; 7235 } 7236 tpg_desc->target_port_count = pc; 7237 tpg_desc = (struct scsi_target_port_group_descriptor *) 7238 &tpg_desc->descriptors[pc]; 7239 } 7240 mtx_unlock(&softc->ctl_lock); 7241 7242 ctl_set_success(ctsio); 7243 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7244 ctsio->be_move_done = ctl_config_move_done; 7245 ctl_datamove((union ctl_io *)ctsio); 7246 return(retval); 7247} 7248 7249int 7250ctl_report_supported_opcodes(struct ctl_scsiio *ctsio) 7251{ 7252 struct ctl_lun *lun = CTL_LUN(ctsio); 7253 struct scsi_report_supported_opcodes *cdb; 7254 const struct ctl_cmd_entry *entry, *sentry; 7255 struct scsi_report_supported_opcodes_all *all; 7256 struct scsi_report_supported_opcodes_descr *descr; 7257 struct scsi_report_supported_opcodes_one *one; 7258 int retval; 7259 int alloc_len, total_len; 7260 int opcode, service_action, i, j, num; 7261 7262 CTL_DEBUG_PRINT(("ctl_report_supported_opcodes\n")); 7263 7264 cdb = (struct scsi_report_supported_opcodes *)ctsio->cdb; 7265 retval = CTL_RETVAL_COMPLETE; 7266 7267 opcode = cdb->requested_opcode; 7268 service_action = scsi_2btoul(cdb->requested_service_action); 7269 switch (cdb->options & RSO_OPTIONS_MASK) { 7270 case RSO_OPTIONS_ALL: 7271 num = 0; 7272 for (i = 0; i < 256; i++) { 7273 entry = &ctl_cmd_table[i]; 7274 if (entry->flags & CTL_CMD_FLAG_SA5) { 7275 for (j = 0; j < 32; j++) { 7276 sentry = &((const struct ctl_cmd_entry *) 7277 entry->execute)[j]; 7278 if (ctl_cmd_applicable( 7279 lun->be_lun->lun_type, sentry)) 7280 num++; 7281 } 7282 } else { 7283 if (ctl_cmd_applicable(lun->be_lun->lun_type, 7284 entry)) 7285 num++; 7286 } 7287 } 7288 total_len = sizeof(struct scsi_report_supported_opcodes_all) + 7289 num * sizeof(struct scsi_report_supported_opcodes_descr); 7290 break; 7291 case RSO_OPTIONS_OC: 7292 if (ctl_cmd_table[opcode].flags & CTL_CMD_FLAG_SA5) { 7293 ctl_set_invalid_field(/*ctsio*/ ctsio, 7294 /*sks_valid*/ 1, 7295 /*command*/ 1, 7296 /*field*/ 2, 7297 /*bit_valid*/ 1, 7298 /*bit*/ 2); 7299 ctl_done((union ctl_io *)ctsio); 7300 return (CTL_RETVAL_COMPLETE); 7301 } 7302 total_len = sizeof(struct scsi_report_supported_opcodes_one) + 32; 7303 break; 7304 case RSO_OPTIONS_OC_SA: 7305 if ((ctl_cmd_table[opcode].flags & CTL_CMD_FLAG_SA5) == 0 || 7306 service_action >= 32) { 7307 ctl_set_invalid_field(/*ctsio*/ ctsio, 7308 /*sks_valid*/ 1, 7309 /*command*/ 1, 7310 /*field*/ 2, 7311 /*bit_valid*/ 1, 7312 /*bit*/ 2); 7313 ctl_done((union ctl_io *)ctsio); 7314 return (CTL_RETVAL_COMPLETE); 7315 } 7316 /* FALLTHROUGH */ 7317 case RSO_OPTIONS_OC_ASA: 7318 total_len = sizeof(struct scsi_report_supported_opcodes_one) + 32; 7319 break; 7320 default: 7321 ctl_set_invalid_field(/*ctsio*/ ctsio, 7322 /*sks_valid*/ 1, 7323 /*command*/ 1, 7324 /*field*/ 2, 7325 /*bit_valid*/ 1, 7326 /*bit*/ 2); 7327 ctl_done((union ctl_io *)ctsio); 7328 return (CTL_RETVAL_COMPLETE); 7329 } 7330 7331 alloc_len = scsi_4btoul(cdb->length); 7332 7333 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7334 7335 ctsio->kern_sg_entries = 0; 7336 7337 if (total_len < alloc_len) { 7338 ctsio->residual = alloc_len - total_len; 7339 ctsio->kern_data_len = total_len; 7340 ctsio->kern_total_len = total_len; 7341 } else { 7342 ctsio->residual = 0; 7343 ctsio->kern_data_len = alloc_len; 7344 ctsio->kern_total_len = alloc_len; 7345 } 7346 ctsio->kern_data_resid = 0; 7347 ctsio->kern_rel_offset = 0; 7348 7349 switch (cdb->options & RSO_OPTIONS_MASK) { 7350 case RSO_OPTIONS_ALL: 7351 all = (struct scsi_report_supported_opcodes_all *) 7352 ctsio->kern_data_ptr; 7353 num = 0; 7354 for (i = 0; i < 256; i++) { 7355 entry = &ctl_cmd_table[i]; 7356 if (entry->flags & CTL_CMD_FLAG_SA5) { 7357 for (j = 0; j < 32; j++) { 7358 sentry = &((const struct ctl_cmd_entry *) 7359 entry->execute)[j]; 7360 if (!ctl_cmd_applicable( 7361 lun->be_lun->lun_type, sentry)) 7362 continue; 7363 descr = &all->descr[num++]; 7364 descr->opcode = i; 7365 scsi_ulto2b(j, descr->service_action); 7366 descr->flags = RSO_SERVACTV; 7367 scsi_ulto2b(sentry->length, 7368 descr->cdb_length); 7369 } 7370 } else { 7371 if (!ctl_cmd_applicable(lun->be_lun->lun_type, 7372 entry)) 7373 continue; 7374 descr = &all->descr[num++]; 7375 descr->opcode = i; 7376 scsi_ulto2b(0, descr->service_action); 7377 descr->flags = 0; 7378 scsi_ulto2b(entry->length, descr->cdb_length); 7379 } 7380 } 7381 scsi_ulto4b( 7382 num * sizeof(struct scsi_report_supported_opcodes_descr), 7383 all->length); 7384 break; 7385 case RSO_OPTIONS_OC: 7386 one = (struct scsi_report_supported_opcodes_one *) 7387 ctsio->kern_data_ptr; 7388 entry = &ctl_cmd_table[opcode]; 7389 goto fill_one; 7390 case RSO_OPTIONS_OC_SA: 7391 one = (struct scsi_report_supported_opcodes_one *) 7392 ctsio->kern_data_ptr; 7393 entry = &ctl_cmd_table[opcode]; 7394 entry = &((const struct ctl_cmd_entry *) 7395 entry->execute)[service_action]; 7396fill_one: 7397 if (ctl_cmd_applicable(lun->be_lun->lun_type, entry)) { 7398 one->support = 3; 7399 scsi_ulto2b(entry->length, one->cdb_length); 7400 one->cdb_usage[0] = opcode; 7401 memcpy(&one->cdb_usage[1], entry->usage, 7402 entry->length - 1); 7403 } else 7404 one->support = 1; 7405 break; 7406 case RSO_OPTIONS_OC_ASA: 7407 one = (struct scsi_report_supported_opcodes_one *) 7408 ctsio->kern_data_ptr; 7409 entry = &ctl_cmd_table[opcode]; 7410 if (entry->flags & CTL_CMD_FLAG_SA5) { 7411 entry = &((const struct ctl_cmd_entry *) 7412 entry->execute)[service_action]; 7413 } else if (service_action != 0) { 7414 one->support = 1; 7415 break; 7416 } 7417 goto fill_one; 7418 } 7419 7420 ctl_set_success(ctsio); 7421 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7422 ctsio->be_move_done = ctl_config_move_done; 7423 ctl_datamove((union ctl_io *)ctsio); 7424 return(retval); 7425} 7426 7427int 7428ctl_report_supported_tmf(struct ctl_scsiio *ctsio) 7429{ 7430 struct scsi_report_supported_tmf *cdb; 7431 struct scsi_report_supported_tmf_ext_data *data; 7432 int retval; 7433 int alloc_len, total_len; 7434 7435 CTL_DEBUG_PRINT(("ctl_report_supported_tmf\n")); 7436 7437 cdb = (struct scsi_report_supported_tmf *)ctsio->cdb; 7438 7439 retval = CTL_RETVAL_COMPLETE; 7440 7441 if (cdb->options & RST_REPD) 7442 total_len = sizeof(struct scsi_report_supported_tmf_ext_data); 7443 else 7444 total_len = sizeof(struct scsi_report_supported_tmf_data); 7445 alloc_len = scsi_4btoul(cdb->length); 7446 7447 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7448 7449 ctsio->kern_sg_entries = 0; 7450 7451 if (total_len < alloc_len) { 7452 ctsio->residual = alloc_len - total_len; 7453 ctsio->kern_data_len = total_len; 7454 ctsio->kern_total_len = total_len; 7455 } else { 7456 ctsio->residual = 0; 7457 ctsio->kern_data_len = alloc_len; 7458 ctsio->kern_total_len = alloc_len; 7459 } 7460 ctsio->kern_data_resid = 0; 7461 ctsio->kern_rel_offset = 0; 7462 7463 data = (struct scsi_report_supported_tmf_ext_data *)ctsio->kern_data_ptr; 7464 data->byte1 |= RST_ATS | RST_ATSS | RST_CTSS | RST_LURS | RST_QTS | 7465 RST_TRS; 7466 data->byte2 |= RST_QAES | RST_QTSS | RST_ITNRS; 7467 data->length = total_len - 4; 7468 7469 ctl_set_success(ctsio); 7470 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7471 ctsio->be_move_done = ctl_config_move_done; 7472 ctl_datamove((union ctl_io *)ctsio); 7473 return (retval); 7474} 7475 7476int 7477ctl_report_timestamp(struct ctl_scsiio *ctsio) 7478{ 7479 struct scsi_report_timestamp *cdb; 7480 struct scsi_report_timestamp_data *data; 7481 struct timeval tv; 7482 int64_t timestamp; 7483 int retval; 7484 int alloc_len, total_len; 7485 7486 CTL_DEBUG_PRINT(("ctl_report_timestamp\n")); 7487 7488 cdb = (struct scsi_report_timestamp *)ctsio->cdb; 7489 7490 retval = CTL_RETVAL_COMPLETE; 7491 7492 total_len = sizeof(struct scsi_report_timestamp_data); 7493 alloc_len = scsi_4btoul(cdb->length); 7494 7495 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7496 7497 ctsio->kern_sg_entries = 0; 7498 7499 if (total_len < alloc_len) { 7500 ctsio->residual = alloc_len - total_len; 7501 ctsio->kern_data_len = total_len; 7502 ctsio->kern_total_len = total_len; 7503 } else { 7504 ctsio->residual = 0; 7505 ctsio->kern_data_len = alloc_len; 7506 ctsio->kern_total_len = alloc_len; 7507 } 7508 ctsio->kern_data_resid = 0; 7509 ctsio->kern_rel_offset = 0; 7510 7511 data = (struct scsi_report_timestamp_data *)ctsio->kern_data_ptr; 7512 scsi_ulto2b(sizeof(*data) - 2, data->length); 7513 data->origin = RTS_ORIG_OUTSIDE; 7514 getmicrotime(&tv); 7515 timestamp = (int64_t)tv.tv_sec * 1000 + tv.tv_usec / 1000; 7516 scsi_ulto4b(timestamp >> 16, data->timestamp); 7517 scsi_ulto2b(timestamp & 0xffff, &data->timestamp[4]); 7518 7519 ctl_set_success(ctsio); 7520 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7521 ctsio->be_move_done = ctl_config_move_done; 7522 ctl_datamove((union ctl_io *)ctsio); 7523 return (retval); 7524} 7525 7526int 7527ctl_persistent_reserve_in(struct ctl_scsiio *ctsio) 7528{ 7529 struct ctl_softc *softc = CTL_SOFTC(ctsio); 7530 struct ctl_lun *lun = CTL_LUN(ctsio); 7531 struct scsi_per_res_in *cdb; 7532 int alloc_len, total_len = 0; 7533 /* struct scsi_per_res_in_rsrv in_data; */ 7534 uint64_t key; 7535 7536 CTL_DEBUG_PRINT(("ctl_persistent_reserve_in\n")); 7537 7538 cdb = (struct scsi_per_res_in *)ctsio->cdb; 7539 7540 alloc_len = scsi_2btoul(cdb->length); 7541 7542retry: 7543 mtx_lock(&lun->lun_lock); 7544 switch (cdb->action) { 7545 case SPRI_RK: /* read keys */ 7546 total_len = sizeof(struct scsi_per_res_in_keys) + 7547 lun->pr_key_count * 7548 sizeof(struct scsi_per_res_key); 7549 break; 7550 case SPRI_RR: /* read reservation */ 7551 if (lun->flags & CTL_LUN_PR_RESERVED) 7552 total_len = sizeof(struct scsi_per_res_in_rsrv); 7553 else 7554 total_len = sizeof(struct scsi_per_res_in_header); 7555 break; 7556 case SPRI_RC: /* report capabilities */ 7557 total_len = sizeof(struct scsi_per_res_cap); 7558 break; 7559 case SPRI_RS: /* read full status */ 7560 total_len = sizeof(struct scsi_per_res_in_header) + 7561 (sizeof(struct scsi_per_res_in_full_desc) + 256) * 7562 lun->pr_key_count; 7563 break; 7564 default: 7565 panic("%s: Invalid PR type %#x", __func__, cdb->action); 7566 } 7567 mtx_unlock(&lun->lun_lock); 7568 7569 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7570 7571 if (total_len < alloc_len) { 7572 ctsio->residual = alloc_len - total_len; 7573 ctsio->kern_data_len = total_len; 7574 ctsio->kern_total_len = total_len; 7575 } else { 7576 ctsio->residual = 0; 7577 ctsio->kern_data_len = alloc_len; 7578 ctsio->kern_total_len = alloc_len; 7579 } 7580 7581 ctsio->kern_data_resid = 0; 7582 ctsio->kern_rel_offset = 0; 7583 ctsio->kern_sg_entries = 0; 7584 7585 mtx_lock(&lun->lun_lock); 7586 switch (cdb->action) { 7587 case SPRI_RK: { // read keys 7588 struct scsi_per_res_in_keys *res_keys; 7589 int i, key_count; 7590 7591 res_keys = (struct scsi_per_res_in_keys*)ctsio->kern_data_ptr; 7592 7593 /* 7594 * We had to drop the lock to allocate our buffer, which 7595 * leaves time for someone to come in with another 7596 * persistent reservation. (That is unlikely, though, 7597 * since this should be the only persistent reservation 7598 * command active right now.) 7599 */ 7600 if (total_len != (sizeof(struct scsi_per_res_in_keys) + 7601 (lun->pr_key_count * 7602 sizeof(struct scsi_per_res_key)))){ 7603 mtx_unlock(&lun->lun_lock); 7604 free(ctsio->kern_data_ptr, M_CTL); 7605 printf("%s: reservation length changed, retrying\n", 7606 __func__); 7607 goto retry; 7608 } 7609 7610 scsi_ulto4b(lun->pr_generation, res_keys->header.generation); 7611 7612 scsi_ulto4b(sizeof(struct scsi_per_res_key) * 7613 lun->pr_key_count, res_keys->header.length); 7614 7615 for (i = 0, key_count = 0; i < CTL_MAX_INITIATORS; i++) { 7616 if ((key = ctl_get_prkey(lun, i)) == 0) 7617 continue; 7618 7619 /* 7620 * We used lun->pr_key_count to calculate the 7621 * size to allocate. If it turns out the number of 7622 * initiators with the registered flag set is 7623 * larger than that (i.e. they haven't been kept in 7624 * sync), we've got a problem. 7625 */ 7626 if (key_count >= lun->pr_key_count) { 7627 key_count++; 7628 continue; 7629 } 7630 scsi_u64to8b(key, res_keys->keys[key_count].key); 7631 key_count++; 7632 } 7633 break; 7634 } 7635 case SPRI_RR: { // read reservation 7636 struct scsi_per_res_in_rsrv *res; 7637 int tmp_len, header_only; 7638 7639 res = (struct scsi_per_res_in_rsrv *)ctsio->kern_data_ptr; 7640 7641 scsi_ulto4b(lun->pr_generation, res->header.generation); 7642 7643 if (lun->flags & CTL_LUN_PR_RESERVED) 7644 { 7645 tmp_len = sizeof(struct scsi_per_res_in_rsrv); 7646 scsi_ulto4b(sizeof(struct scsi_per_res_in_rsrv_data), 7647 res->header.length); 7648 header_only = 0; 7649 } else { 7650 tmp_len = sizeof(struct scsi_per_res_in_header); 7651 scsi_ulto4b(0, res->header.length); 7652 header_only = 1; 7653 } 7654 7655 /* 7656 * We had to drop the lock to allocate our buffer, which 7657 * leaves time for someone to come in with another 7658 * persistent reservation. (That is unlikely, though, 7659 * since this should be the only persistent reservation 7660 * command active right now.) 7661 */ 7662 if (tmp_len != total_len) { 7663 mtx_unlock(&lun->lun_lock); 7664 free(ctsio->kern_data_ptr, M_CTL); 7665 printf("%s: reservation status changed, retrying\n", 7666 __func__); 7667 goto retry; 7668 } 7669 7670 /* 7671 * No reservation held, so we're done. 7672 */ 7673 if (header_only != 0) 7674 break; 7675 7676 /* 7677 * If the registration is an All Registrants type, the key 7678 * is 0, since it doesn't really matter. 7679 */ 7680 if (lun->pr_res_idx != CTL_PR_ALL_REGISTRANTS) { 7681 scsi_u64to8b(ctl_get_prkey(lun, lun->pr_res_idx), 7682 res->data.reservation); 7683 } 7684 res->data.scopetype = lun->pr_res_type; 7685 break; 7686 } 7687 case SPRI_RC: //report capabilities 7688 { 7689 struct scsi_per_res_cap *res_cap; 7690 uint16_t type_mask; 7691 7692 res_cap = (struct scsi_per_res_cap *)ctsio->kern_data_ptr; 7693 scsi_ulto2b(sizeof(*res_cap), res_cap->length); 7694 res_cap->flags1 = SPRI_CRH; 7695 res_cap->flags2 = SPRI_TMV | SPRI_ALLOW_5; 7696 type_mask = SPRI_TM_WR_EX_AR | 7697 SPRI_TM_EX_AC_RO | 7698 SPRI_TM_WR_EX_RO | 7699 SPRI_TM_EX_AC | 7700 SPRI_TM_WR_EX | 7701 SPRI_TM_EX_AC_AR; 7702 scsi_ulto2b(type_mask, res_cap->type_mask); 7703 break; 7704 } 7705 case SPRI_RS: { // read full status 7706 struct scsi_per_res_in_full *res_status; 7707 struct scsi_per_res_in_full_desc *res_desc; 7708 struct ctl_port *port; 7709 int i, len; 7710 7711 res_status = (struct scsi_per_res_in_full*)ctsio->kern_data_ptr; 7712 7713 /* 7714 * We had to drop the lock to allocate our buffer, which 7715 * leaves time for someone to come in with another 7716 * persistent reservation. (That is unlikely, though, 7717 * since this should be the only persistent reservation 7718 * command active right now.) 7719 */ 7720 if (total_len < (sizeof(struct scsi_per_res_in_header) + 7721 (sizeof(struct scsi_per_res_in_full_desc) + 256) * 7722 lun->pr_key_count)){ 7723 mtx_unlock(&lun->lun_lock); 7724 free(ctsio->kern_data_ptr, M_CTL); 7725 printf("%s: reservation length changed, retrying\n", 7726 __func__); 7727 goto retry; 7728 } 7729 7730 scsi_ulto4b(lun->pr_generation, res_status->header.generation); 7731 7732 res_desc = &res_status->desc[0]; 7733 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 7734 if ((key = ctl_get_prkey(lun, i)) == 0) 7735 continue; 7736 7737 scsi_u64to8b(key, res_desc->res_key.key); 7738 if ((lun->flags & CTL_LUN_PR_RESERVED) && 7739 (lun->pr_res_idx == i || 7740 lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS)) { 7741 res_desc->flags = SPRI_FULL_R_HOLDER; 7742 res_desc->scopetype = lun->pr_res_type; 7743 } 7744 scsi_ulto2b(i / CTL_MAX_INIT_PER_PORT, 7745 res_desc->rel_trgt_port_id); 7746 len = 0; 7747 port = softc->ctl_ports[i / CTL_MAX_INIT_PER_PORT]; 7748 if (port != NULL) 7749 len = ctl_create_iid(port, 7750 i % CTL_MAX_INIT_PER_PORT, 7751 res_desc->transport_id); 7752 scsi_ulto4b(len, res_desc->additional_length); 7753 res_desc = (struct scsi_per_res_in_full_desc *) 7754 &res_desc->transport_id[len]; 7755 } 7756 scsi_ulto4b((uint8_t *)res_desc - (uint8_t *)&res_status->desc[0], 7757 res_status->header.length); 7758 break; 7759 } 7760 default: 7761 panic("%s: Invalid PR type %#x", __func__, cdb->action); 7762 } 7763 mtx_unlock(&lun->lun_lock); 7764 7765 ctl_set_success(ctsio); 7766 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7767 ctsio->be_move_done = ctl_config_move_done; 7768 ctl_datamove((union ctl_io *)ctsio); 7769 return (CTL_RETVAL_COMPLETE); 7770} 7771 7772/* 7773 * Returns 0 if ctl_persistent_reserve_out() should continue, non-zero if 7774 * it should return. 7775 */ 7776static int 7777ctl_pro_preempt(struct ctl_softc *softc, struct ctl_lun *lun, uint64_t res_key, 7778 uint64_t sa_res_key, uint8_t type, uint32_t residx, 7779 struct ctl_scsiio *ctsio, struct scsi_per_res_out *cdb, 7780 struct scsi_per_res_out_parms* param) 7781{ 7782 union ctl_ha_msg persis_io; 7783 int i; 7784 7785 mtx_lock(&lun->lun_lock); 7786 if (sa_res_key == 0) { 7787 if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS) { 7788 /* validate scope and type */ 7789 if ((cdb->scope_type & SPR_SCOPE_MASK) != 7790 SPR_LU_SCOPE) { 7791 mtx_unlock(&lun->lun_lock); 7792 ctl_set_invalid_field(/*ctsio*/ ctsio, 7793 /*sks_valid*/ 1, 7794 /*command*/ 1, 7795 /*field*/ 2, 7796 /*bit_valid*/ 1, 7797 /*bit*/ 4); 7798 ctl_done((union ctl_io *)ctsio); 7799 return (1); 7800 } 7801 7802 if (type>8 || type==2 || type==4 || type==0) { 7803 mtx_unlock(&lun->lun_lock); 7804 ctl_set_invalid_field(/*ctsio*/ ctsio, 7805 /*sks_valid*/ 1, 7806 /*command*/ 1, 7807 /*field*/ 2, 7808 /*bit_valid*/ 1, 7809 /*bit*/ 0); 7810 ctl_done((union ctl_io *)ctsio); 7811 return (1); 7812 } 7813 7814 /* 7815 * Unregister everybody else and build UA for 7816 * them 7817 */ 7818 for(i = 0; i < CTL_MAX_INITIATORS; i++) { 7819 if (i == residx || ctl_get_prkey(lun, i) == 0) 7820 continue; 7821 7822 ctl_clr_prkey(lun, i); 7823 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 7824 } 7825 lun->pr_key_count = 1; 7826 lun->pr_res_type = type; 7827 if (lun->pr_res_type != SPR_TYPE_WR_EX_AR && 7828 lun->pr_res_type != SPR_TYPE_EX_AC_AR) 7829 lun->pr_res_idx = residx; 7830 lun->pr_generation++; 7831 mtx_unlock(&lun->lun_lock); 7832 7833 /* send msg to other side */ 7834 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 7835 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 7836 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 7837 persis_io.pr.pr_info.residx = lun->pr_res_idx; 7838 persis_io.pr.pr_info.res_type = type; 7839 memcpy(persis_io.pr.pr_info.sa_res_key, 7840 param->serv_act_res_key, 7841 sizeof(param->serv_act_res_key)); 7842 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 7843 sizeof(persis_io.pr), M_WAITOK); 7844 } else { 7845 /* not all registrants */ 7846 mtx_unlock(&lun->lun_lock); 7847 free(ctsio->kern_data_ptr, M_CTL); 7848 ctl_set_invalid_field(ctsio, 7849 /*sks_valid*/ 1, 7850 /*command*/ 0, 7851 /*field*/ 8, 7852 /*bit_valid*/ 0, 7853 /*bit*/ 0); 7854 ctl_done((union ctl_io *)ctsio); 7855 return (1); 7856 } 7857 } else if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS 7858 || !(lun->flags & CTL_LUN_PR_RESERVED)) { 7859 int found = 0; 7860 7861 if (res_key == sa_res_key) { 7862 /* special case */ 7863 /* 7864 * The spec implies this is not good but doesn't 7865 * say what to do. There are two choices either 7866 * generate a res conflict or check condition 7867 * with illegal field in parameter data. Since 7868 * that is what is done when the sa_res_key is 7869 * zero I'll take that approach since this has 7870 * to do with the sa_res_key. 7871 */ 7872 mtx_unlock(&lun->lun_lock); 7873 free(ctsio->kern_data_ptr, M_CTL); 7874 ctl_set_invalid_field(ctsio, 7875 /*sks_valid*/ 1, 7876 /*command*/ 0, 7877 /*field*/ 8, 7878 /*bit_valid*/ 0, 7879 /*bit*/ 0); 7880 ctl_done((union ctl_io *)ctsio); 7881 return (1); 7882 } 7883 7884 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 7885 if (ctl_get_prkey(lun, i) != sa_res_key) 7886 continue; 7887 7888 found = 1; 7889 ctl_clr_prkey(lun, i); 7890 lun->pr_key_count--; 7891 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 7892 } 7893 if (!found) { 7894 mtx_unlock(&lun->lun_lock); 7895 free(ctsio->kern_data_ptr, M_CTL); 7896 ctl_set_reservation_conflict(ctsio); 7897 ctl_done((union ctl_io *)ctsio); 7898 return (CTL_RETVAL_COMPLETE); 7899 } 7900 lun->pr_generation++; 7901 mtx_unlock(&lun->lun_lock); 7902 7903 /* send msg to other side */ 7904 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 7905 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 7906 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 7907 persis_io.pr.pr_info.residx = lun->pr_res_idx; 7908 persis_io.pr.pr_info.res_type = type; 7909 memcpy(persis_io.pr.pr_info.sa_res_key, 7910 param->serv_act_res_key, 7911 sizeof(param->serv_act_res_key)); 7912 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 7913 sizeof(persis_io.pr), M_WAITOK); 7914 } else { 7915 /* Reserved but not all registrants */ 7916 /* sa_res_key is res holder */ 7917 if (sa_res_key == ctl_get_prkey(lun, lun->pr_res_idx)) { 7918 /* validate scope and type */ 7919 if ((cdb->scope_type & SPR_SCOPE_MASK) != 7920 SPR_LU_SCOPE) { 7921 mtx_unlock(&lun->lun_lock); 7922 ctl_set_invalid_field(/*ctsio*/ ctsio, 7923 /*sks_valid*/ 1, 7924 /*command*/ 1, 7925 /*field*/ 2, 7926 /*bit_valid*/ 1, 7927 /*bit*/ 4); 7928 ctl_done((union ctl_io *)ctsio); 7929 return (1); 7930 } 7931 7932 if (type>8 || type==2 || type==4 || type==0) { 7933 mtx_unlock(&lun->lun_lock); 7934 ctl_set_invalid_field(/*ctsio*/ ctsio, 7935 /*sks_valid*/ 1, 7936 /*command*/ 1, 7937 /*field*/ 2, 7938 /*bit_valid*/ 1, 7939 /*bit*/ 0); 7940 ctl_done((union ctl_io *)ctsio); 7941 return (1); 7942 } 7943 7944 /* 7945 * Do the following: 7946 * if sa_res_key != res_key remove all 7947 * registrants w/sa_res_key and generate UA 7948 * for these registrants(Registrations 7949 * Preempted) if it wasn't an exclusive 7950 * reservation generate UA(Reservations 7951 * Preempted) for all other registered nexuses 7952 * if the type has changed. Establish the new 7953 * reservation and holder. If res_key and 7954 * sa_res_key are the same do the above 7955 * except don't unregister the res holder. 7956 */ 7957 7958 for(i = 0; i < CTL_MAX_INITIATORS; i++) { 7959 if (i == residx || ctl_get_prkey(lun, i) == 0) 7960 continue; 7961 7962 if (sa_res_key == ctl_get_prkey(lun, i)) { 7963 ctl_clr_prkey(lun, i); 7964 lun->pr_key_count--; 7965 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 7966 } else if (type != lun->pr_res_type && 7967 (lun->pr_res_type == SPR_TYPE_WR_EX_RO || 7968 lun->pr_res_type == SPR_TYPE_EX_AC_RO)) { 7969 ctl_est_ua(lun, i, CTL_UA_RES_RELEASE); 7970 } 7971 } 7972 lun->pr_res_type = type; 7973 if (lun->pr_res_type != SPR_TYPE_WR_EX_AR && 7974 lun->pr_res_type != SPR_TYPE_EX_AC_AR) 7975 lun->pr_res_idx = residx; 7976 else 7977 lun->pr_res_idx = CTL_PR_ALL_REGISTRANTS; 7978 lun->pr_generation++; 7979 mtx_unlock(&lun->lun_lock); 7980 7981 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 7982 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 7983 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 7984 persis_io.pr.pr_info.residx = lun->pr_res_idx; 7985 persis_io.pr.pr_info.res_type = type; 7986 memcpy(persis_io.pr.pr_info.sa_res_key, 7987 param->serv_act_res_key, 7988 sizeof(param->serv_act_res_key)); 7989 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 7990 sizeof(persis_io.pr), M_WAITOK); 7991 } else { 7992 /* 7993 * sa_res_key is not the res holder just 7994 * remove registrants 7995 */ 7996 int found=0; 7997 7998 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 7999 if (sa_res_key != ctl_get_prkey(lun, i)) 8000 continue; 8001 8002 found = 1; 8003 ctl_clr_prkey(lun, i); 8004 lun->pr_key_count--; 8005 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 8006 } 8007 8008 if (!found) { 8009 mtx_unlock(&lun->lun_lock); 8010 free(ctsio->kern_data_ptr, M_CTL); 8011 ctl_set_reservation_conflict(ctsio); 8012 ctl_done((union ctl_io *)ctsio); 8013 return (1); 8014 } 8015 lun->pr_generation++; 8016 mtx_unlock(&lun->lun_lock); 8017 8018 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8019 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8020 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 8021 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8022 persis_io.pr.pr_info.res_type = type; 8023 memcpy(persis_io.pr.pr_info.sa_res_key, 8024 param->serv_act_res_key, 8025 sizeof(param->serv_act_res_key)); 8026 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8027 sizeof(persis_io.pr), M_WAITOK); 8028 } 8029 } 8030 return (0); 8031} 8032 8033static void 8034ctl_pro_preempt_other(struct ctl_lun *lun, union ctl_ha_msg *msg) 8035{ 8036 uint64_t sa_res_key; 8037 int i; 8038 8039 sa_res_key = scsi_8btou64(msg->pr.pr_info.sa_res_key); 8040 8041 if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS 8042 || lun->pr_res_idx == CTL_PR_NO_RESERVATION 8043 || sa_res_key != ctl_get_prkey(lun, lun->pr_res_idx)) { 8044 if (sa_res_key == 0) { 8045 /* 8046 * Unregister everybody else and build UA for 8047 * them 8048 */ 8049 for(i = 0; i < CTL_MAX_INITIATORS; i++) { 8050 if (i == msg->pr.pr_info.residx || 8051 ctl_get_prkey(lun, i) == 0) 8052 continue; 8053 8054 ctl_clr_prkey(lun, i); 8055 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 8056 } 8057 8058 lun->pr_key_count = 1; 8059 lun->pr_res_type = msg->pr.pr_info.res_type; 8060 if (lun->pr_res_type != SPR_TYPE_WR_EX_AR && 8061 lun->pr_res_type != SPR_TYPE_EX_AC_AR) 8062 lun->pr_res_idx = msg->pr.pr_info.residx; 8063 } else { 8064 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 8065 if (sa_res_key == ctl_get_prkey(lun, i)) 8066 continue; 8067 8068 ctl_clr_prkey(lun, i); 8069 lun->pr_key_count--; 8070 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 8071 } 8072 } 8073 } else { 8074 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 8075 if (i == msg->pr.pr_info.residx || 8076 ctl_get_prkey(lun, i) == 0) 8077 continue; 8078 8079 if (sa_res_key == ctl_get_prkey(lun, i)) { 8080 ctl_clr_prkey(lun, i); 8081 lun->pr_key_count--; 8082 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 8083 } else if (msg->pr.pr_info.res_type != lun->pr_res_type 8084 && (lun->pr_res_type == SPR_TYPE_WR_EX_RO || 8085 lun->pr_res_type == SPR_TYPE_EX_AC_RO)) { 8086 ctl_est_ua(lun, i, CTL_UA_RES_RELEASE); 8087 } 8088 } 8089 lun->pr_res_type = msg->pr.pr_info.res_type; 8090 if (lun->pr_res_type != SPR_TYPE_WR_EX_AR && 8091 lun->pr_res_type != SPR_TYPE_EX_AC_AR) 8092 lun->pr_res_idx = msg->pr.pr_info.residx; 8093 else 8094 lun->pr_res_idx = CTL_PR_ALL_REGISTRANTS; 8095 } 8096 lun->pr_generation++; 8097 8098} 8099 8100 8101int 8102ctl_persistent_reserve_out(struct ctl_scsiio *ctsio) 8103{ 8104 struct ctl_softc *softc = CTL_SOFTC(ctsio); 8105 struct ctl_lun *lun = CTL_LUN(ctsio); 8106 int retval; 8107 u_int32_t param_len; 8108 struct scsi_per_res_out *cdb; 8109 struct scsi_per_res_out_parms* param; 8110 uint32_t residx; 8111 uint64_t res_key, sa_res_key, key; 8112 uint8_t type; 8113 union ctl_ha_msg persis_io; 8114 int i; 8115 8116 CTL_DEBUG_PRINT(("ctl_persistent_reserve_out\n")); 8117 8118 cdb = (struct scsi_per_res_out *)ctsio->cdb; 8119 retval = CTL_RETVAL_COMPLETE; 8120 8121 /* 8122 * We only support whole-LUN scope. The scope & type are ignored for 8123 * register, register and ignore existing key and clear. 8124 * We sometimes ignore scope and type on preempts too!! 8125 * Verify reservation type here as well. 8126 */ 8127 type = cdb->scope_type & SPR_TYPE_MASK; 8128 if ((cdb->action == SPRO_RESERVE) 8129 || (cdb->action == SPRO_RELEASE)) { 8130 if ((cdb->scope_type & SPR_SCOPE_MASK) != SPR_LU_SCOPE) { 8131 ctl_set_invalid_field(/*ctsio*/ ctsio, 8132 /*sks_valid*/ 1, 8133 /*command*/ 1, 8134 /*field*/ 2, 8135 /*bit_valid*/ 1, 8136 /*bit*/ 4); 8137 ctl_done((union ctl_io *)ctsio); 8138 return (CTL_RETVAL_COMPLETE); 8139 } 8140 8141 if (type>8 || type==2 || type==4 || type==0) { 8142 ctl_set_invalid_field(/*ctsio*/ ctsio, 8143 /*sks_valid*/ 1, 8144 /*command*/ 1, 8145 /*field*/ 2, 8146 /*bit_valid*/ 1, 8147 /*bit*/ 0); 8148 ctl_done((union ctl_io *)ctsio); 8149 return (CTL_RETVAL_COMPLETE); 8150 } 8151 } 8152 8153 param_len = scsi_4btoul(cdb->length); 8154 8155 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 8156 ctsio->kern_data_ptr = malloc(param_len, M_CTL, M_WAITOK); 8157 ctsio->kern_data_len = param_len; 8158 ctsio->kern_total_len = param_len; 8159 ctsio->kern_data_resid = 0; 8160 ctsio->kern_rel_offset = 0; 8161 ctsio->kern_sg_entries = 0; 8162 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 8163 ctsio->be_move_done = ctl_config_move_done; 8164 ctl_datamove((union ctl_io *)ctsio); 8165 8166 return (CTL_RETVAL_COMPLETE); 8167 } 8168 8169 param = (struct scsi_per_res_out_parms *)ctsio->kern_data_ptr; 8170 8171 residx = ctl_get_initindex(&ctsio->io_hdr.nexus); 8172 res_key = scsi_8btou64(param->res_key.key); 8173 sa_res_key = scsi_8btou64(param->serv_act_res_key); 8174 8175 /* 8176 * Validate the reservation key here except for SPRO_REG_IGNO 8177 * This must be done for all other service actions 8178 */ 8179 if ((cdb->action & SPRO_ACTION_MASK) != SPRO_REG_IGNO) { 8180 mtx_lock(&lun->lun_lock); 8181 if ((key = ctl_get_prkey(lun, residx)) != 0) { 8182 if (res_key != key) { 8183 /* 8184 * The current key passed in doesn't match 8185 * the one the initiator previously 8186 * registered. 8187 */ 8188 mtx_unlock(&lun->lun_lock); 8189 free(ctsio->kern_data_ptr, M_CTL); 8190 ctl_set_reservation_conflict(ctsio); 8191 ctl_done((union ctl_io *)ctsio); 8192 return (CTL_RETVAL_COMPLETE); 8193 } 8194 } else if ((cdb->action & SPRO_ACTION_MASK) != SPRO_REGISTER) { 8195 /* 8196 * We are not registered 8197 */ 8198 mtx_unlock(&lun->lun_lock); 8199 free(ctsio->kern_data_ptr, M_CTL); 8200 ctl_set_reservation_conflict(ctsio); 8201 ctl_done((union ctl_io *)ctsio); 8202 return (CTL_RETVAL_COMPLETE); 8203 } else if (res_key != 0) { 8204 /* 8205 * We are not registered and trying to register but 8206 * the register key isn't zero. 8207 */ 8208 mtx_unlock(&lun->lun_lock); 8209 free(ctsio->kern_data_ptr, M_CTL); 8210 ctl_set_reservation_conflict(ctsio); 8211 ctl_done((union ctl_io *)ctsio); 8212 return (CTL_RETVAL_COMPLETE); 8213 } 8214 mtx_unlock(&lun->lun_lock); 8215 } 8216 8217 switch (cdb->action & SPRO_ACTION_MASK) { 8218 case SPRO_REGISTER: 8219 case SPRO_REG_IGNO: { 8220 8221#if 0 8222 printf("Registration received\n"); 8223#endif 8224 8225 /* 8226 * We don't support any of these options, as we report in 8227 * the read capabilities request (see 8228 * ctl_persistent_reserve_in(), above). 8229 */ 8230 if ((param->flags & SPR_SPEC_I_PT) 8231 || (param->flags & SPR_ALL_TG_PT) 8232 || (param->flags & SPR_APTPL)) { 8233 int bit_ptr; 8234 8235 if (param->flags & SPR_APTPL) 8236 bit_ptr = 0; 8237 else if (param->flags & SPR_ALL_TG_PT) 8238 bit_ptr = 2; 8239 else /* SPR_SPEC_I_PT */ 8240 bit_ptr = 3; 8241 8242 free(ctsio->kern_data_ptr, M_CTL); 8243 ctl_set_invalid_field(ctsio, 8244 /*sks_valid*/ 1, 8245 /*command*/ 0, 8246 /*field*/ 20, 8247 /*bit_valid*/ 1, 8248 /*bit*/ bit_ptr); 8249 ctl_done((union ctl_io *)ctsio); 8250 return (CTL_RETVAL_COMPLETE); 8251 } 8252 8253 mtx_lock(&lun->lun_lock); 8254 8255 /* 8256 * The initiator wants to clear the 8257 * key/unregister. 8258 */ 8259 if (sa_res_key == 0) { 8260 if ((res_key == 0 8261 && (cdb->action & SPRO_ACTION_MASK) == SPRO_REGISTER) 8262 || ((cdb->action & SPRO_ACTION_MASK) == SPRO_REG_IGNO 8263 && ctl_get_prkey(lun, residx) == 0)) { 8264 mtx_unlock(&lun->lun_lock); 8265 goto done; 8266 } 8267 8268 ctl_clr_prkey(lun, residx); 8269 lun->pr_key_count--; 8270 8271 if (residx == lun->pr_res_idx) { 8272 lun->flags &= ~CTL_LUN_PR_RESERVED; 8273 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8274 8275 if ((lun->pr_res_type == SPR_TYPE_WR_EX_RO || 8276 lun->pr_res_type == SPR_TYPE_EX_AC_RO) && 8277 lun->pr_key_count) { 8278 /* 8279 * If the reservation is a registrants 8280 * only type we need to generate a UA 8281 * for other registered inits. The 8282 * sense code should be RESERVATIONS 8283 * RELEASED 8284 */ 8285 8286 for (i = softc->init_min; i < softc->init_max; i++){ 8287 if (ctl_get_prkey(lun, i) == 0) 8288 continue; 8289 ctl_est_ua(lun, i, 8290 CTL_UA_RES_RELEASE); 8291 } 8292 } 8293 lun->pr_res_type = 0; 8294 } else if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS) { 8295 if (lun->pr_key_count==0) { 8296 lun->flags &= ~CTL_LUN_PR_RESERVED; 8297 lun->pr_res_type = 0; 8298 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8299 } 8300 } 8301 lun->pr_generation++; 8302 mtx_unlock(&lun->lun_lock); 8303 8304 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8305 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8306 persis_io.pr.pr_info.action = CTL_PR_UNREG_KEY; 8307 persis_io.pr.pr_info.residx = residx; 8308 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8309 sizeof(persis_io.pr), M_WAITOK); 8310 } else /* sa_res_key != 0 */ { 8311 8312 /* 8313 * If we aren't registered currently then increment 8314 * the key count and set the registered flag. 8315 */ 8316 ctl_alloc_prkey(lun, residx); 8317 if (ctl_get_prkey(lun, residx) == 0) 8318 lun->pr_key_count++; 8319 ctl_set_prkey(lun, residx, sa_res_key); 8320 lun->pr_generation++; 8321 mtx_unlock(&lun->lun_lock); 8322 8323 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8324 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8325 persis_io.pr.pr_info.action = CTL_PR_REG_KEY; 8326 persis_io.pr.pr_info.residx = residx; 8327 memcpy(persis_io.pr.pr_info.sa_res_key, 8328 param->serv_act_res_key, 8329 sizeof(param->serv_act_res_key)); 8330 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8331 sizeof(persis_io.pr), M_WAITOK); 8332 } 8333 8334 break; 8335 } 8336 case SPRO_RESERVE: 8337#if 0 8338 printf("Reserve executed type %d\n", type); 8339#endif 8340 mtx_lock(&lun->lun_lock); 8341 if (lun->flags & CTL_LUN_PR_RESERVED) { 8342 /* 8343 * if this isn't the reservation holder and it's 8344 * not a "all registrants" type or if the type is 8345 * different then we have a conflict 8346 */ 8347 if ((lun->pr_res_idx != residx 8348 && lun->pr_res_idx != CTL_PR_ALL_REGISTRANTS) 8349 || lun->pr_res_type != type) { 8350 mtx_unlock(&lun->lun_lock); 8351 free(ctsio->kern_data_ptr, M_CTL); 8352 ctl_set_reservation_conflict(ctsio); 8353 ctl_done((union ctl_io *)ctsio); 8354 return (CTL_RETVAL_COMPLETE); 8355 } 8356 mtx_unlock(&lun->lun_lock); 8357 } else /* create a reservation */ { 8358 /* 8359 * If it's not an "all registrants" type record 8360 * reservation holder 8361 */ 8362 if (type != SPR_TYPE_WR_EX_AR 8363 && type != SPR_TYPE_EX_AC_AR) 8364 lun->pr_res_idx = residx; /* Res holder */ 8365 else 8366 lun->pr_res_idx = CTL_PR_ALL_REGISTRANTS; 8367 8368 lun->flags |= CTL_LUN_PR_RESERVED; 8369 lun->pr_res_type = type; 8370 8371 mtx_unlock(&lun->lun_lock); 8372 8373 /* send msg to other side */ 8374 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8375 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8376 persis_io.pr.pr_info.action = CTL_PR_RESERVE; 8377 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8378 persis_io.pr.pr_info.res_type = type; 8379 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8380 sizeof(persis_io.pr), M_WAITOK); 8381 } 8382 break; 8383 8384 case SPRO_RELEASE: 8385 mtx_lock(&lun->lun_lock); 8386 if ((lun->flags & CTL_LUN_PR_RESERVED) == 0) { 8387 /* No reservation exists return good status */ 8388 mtx_unlock(&lun->lun_lock); 8389 goto done; 8390 } 8391 /* 8392 * Is this nexus a reservation holder? 8393 */ 8394 if (lun->pr_res_idx != residx 8395 && lun->pr_res_idx != CTL_PR_ALL_REGISTRANTS) { 8396 /* 8397 * not a res holder return good status but 8398 * do nothing 8399 */ 8400 mtx_unlock(&lun->lun_lock); 8401 goto done; 8402 } 8403 8404 if (lun->pr_res_type != type) { 8405 mtx_unlock(&lun->lun_lock); 8406 free(ctsio->kern_data_ptr, M_CTL); 8407 ctl_set_illegal_pr_release(ctsio); 8408 ctl_done((union ctl_io *)ctsio); 8409 return (CTL_RETVAL_COMPLETE); 8410 } 8411 8412 /* okay to release */ 8413 lun->flags &= ~CTL_LUN_PR_RESERVED; 8414 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8415 lun->pr_res_type = 0; 8416 8417 /* 8418 * If this isn't an exclusive access reservation and NUAR 8419 * is not set, generate UA for all other registrants. 8420 */ 8421 if (type != SPR_TYPE_EX_AC && type != SPR_TYPE_WR_EX && 8422 (lun->MODE_CTRL.queue_flags & SCP_NUAR) == 0) { 8423 for (i = softc->init_min; i < softc->init_max; i++) { 8424 if (i == residx || ctl_get_prkey(lun, i) == 0) 8425 continue; 8426 ctl_est_ua(lun, i, CTL_UA_RES_RELEASE); 8427 } 8428 } 8429 mtx_unlock(&lun->lun_lock); 8430 8431 /* Send msg to other side */ 8432 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8433 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8434 persis_io.pr.pr_info.action = CTL_PR_RELEASE; 8435 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8436 sizeof(persis_io.pr), M_WAITOK); 8437 break; 8438 8439 case SPRO_CLEAR: 8440 /* send msg to other side */ 8441 8442 mtx_lock(&lun->lun_lock); 8443 lun->flags &= ~CTL_LUN_PR_RESERVED; 8444 lun->pr_res_type = 0; 8445 lun->pr_key_count = 0; 8446 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8447 8448 ctl_clr_prkey(lun, residx); 8449 for (i = 0; i < CTL_MAX_INITIATORS; i++) 8450 if (ctl_get_prkey(lun, i) != 0) { 8451 ctl_clr_prkey(lun, i); 8452 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 8453 } 8454 lun->pr_generation++; 8455 mtx_unlock(&lun->lun_lock); 8456 8457 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8458 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8459 persis_io.pr.pr_info.action = CTL_PR_CLEAR; 8460 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8461 sizeof(persis_io.pr), M_WAITOK); 8462 break; 8463 8464 case SPRO_PREEMPT: 8465 case SPRO_PRE_ABO: { 8466 int nretval; 8467 8468 nretval = ctl_pro_preempt(softc, lun, res_key, sa_res_key, type, 8469 residx, ctsio, cdb, param); 8470 if (nretval != 0) 8471 return (CTL_RETVAL_COMPLETE); 8472 break; 8473 } 8474 default: 8475 panic("%s: Invalid PR type %#x", __func__, cdb->action); 8476 } 8477 8478done: 8479 free(ctsio->kern_data_ptr, M_CTL); 8480 ctl_set_success(ctsio); 8481 ctl_done((union ctl_io *)ctsio); 8482 8483 return (retval); 8484} 8485 8486/* 8487 * This routine is for handling a message from the other SC pertaining to 8488 * persistent reserve out. All the error checking will have been done 8489 * so only perorming the action need be done here to keep the two 8490 * in sync. 8491 */ 8492static void 8493ctl_hndl_per_res_out_on_other_sc(union ctl_io *io) 8494{ 8495 struct ctl_softc *softc = CTL_SOFTC(io); 8496 union ctl_ha_msg *msg = (union ctl_ha_msg *)&io->presio.pr_msg; 8497 struct ctl_lun *lun; 8498 int i; 8499 uint32_t residx, targ_lun; 8500 8501 targ_lun = msg->hdr.nexus.targ_mapped_lun; 8502 mtx_lock(&softc->ctl_lock); 8503 if (targ_lun >= CTL_MAX_LUNS || 8504 (lun = softc->ctl_luns[targ_lun]) == NULL) { 8505 mtx_unlock(&softc->ctl_lock); 8506 return; 8507 } 8508 mtx_lock(&lun->lun_lock); 8509 mtx_unlock(&softc->ctl_lock); 8510 if (lun->flags & CTL_LUN_DISABLED) { 8511 mtx_unlock(&lun->lun_lock); 8512 return; 8513 } 8514 residx = ctl_get_initindex(&msg->hdr.nexus); 8515 switch(msg->pr.pr_info.action) { 8516 case CTL_PR_REG_KEY: 8517 ctl_alloc_prkey(lun, msg->pr.pr_info.residx); 8518 if (ctl_get_prkey(lun, msg->pr.pr_info.residx) == 0) 8519 lun->pr_key_count++; 8520 ctl_set_prkey(lun, msg->pr.pr_info.residx, 8521 scsi_8btou64(msg->pr.pr_info.sa_res_key)); 8522 lun->pr_generation++; 8523 break; 8524 8525 case CTL_PR_UNREG_KEY: 8526 ctl_clr_prkey(lun, msg->pr.pr_info.residx); 8527 lun->pr_key_count--; 8528 8529 /* XXX Need to see if the reservation has been released */ 8530 /* if so do we need to generate UA? */ 8531 if (msg->pr.pr_info.residx == lun->pr_res_idx) { 8532 lun->flags &= ~CTL_LUN_PR_RESERVED; 8533 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8534 8535 if ((lun->pr_res_type == SPR_TYPE_WR_EX_RO || 8536 lun->pr_res_type == SPR_TYPE_EX_AC_RO) && 8537 lun->pr_key_count) { 8538 /* 8539 * If the reservation is a registrants 8540 * only type we need to generate a UA 8541 * for other registered inits. The 8542 * sense code should be RESERVATIONS 8543 * RELEASED 8544 */ 8545 8546 for (i = softc->init_min; i < softc->init_max; i++) { 8547 if (ctl_get_prkey(lun, i) == 0) 8548 continue; 8549 8550 ctl_est_ua(lun, i, CTL_UA_RES_RELEASE); 8551 } 8552 } 8553 lun->pr_res_type = 0; 8554 } else if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS) { 8555 if (lun->pr_key_count==0) { 8556 lun->flags &= ~CTL_LUN_PR_RESERVED; 8557 lun->pr_res_type = 0; 8558 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8559 } 8560 } 8561 lun->pr_generation++; 8562 break; 8563 8564 case CTL_PR_RESERVE: 8565 lun->flags |= CTL_LUN_PR_RESERVED; 8566 lun->pr_res_type = msg->pr.pr_info.res_type; 8567 lun->pr_res_idx = msg->pr.pr_info.residx; 8568 8569 break; 8570 8571 case CTL_PR_RELEASE: 8572 /* 8573 * If this isn't an exclusive access reservation and NUAR 8574 * is not set, generate UA for all other registrants. 8575 */ 8576 if (lun->pr_res_type != SPR_TYPE_EX_AC && 8577 lun->pr_res_type != SPR_TYPE_WR_EX && 8578 (lun->MODE_CTRL.queue_flags & SCP_NUAR) == 0) { 8579 for (i = softc->init_min; i < softc->init_max; i++) 8580 if (i == residx || ctl_get_prkey(lun, i) == 0) 8581 continue; 8582 ctl_est_ua(lun, i, CTL_UA_RES_RELEASE); 8583 } 8584 8585 lun->flags &= ~CTL_LUN_PR_RESERVED; 8586 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8587 lun->pr_res_type = 0; 8588 break; 8589 8590 case CTL_PR_PREEMPT: 8591 ctl_pro_preempt_other(lun, msg); 8592 break; 8593 case CTL_PR_CLEAR: 8594 lun->flags &= ~CTL_LUN_PR_RESERVED; 8595 lun->pr_res_type = 0; 8596 lun->pr_key_count = 0; 8597 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8598 8599 for (i=0; i < CTL_MAX_INITIATORS; i++) { 8600 if (ctl_get_prkey(lun, i) == 0) 8601 continue; 8602 ctl_clr_prkey(lun, i); 8603 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 8604 } 8605 lun->pr_generation++; 8606 break; 8607 } 8608 8609 mtx_unlock(&lun->lun_lock); 8610} 8611 8612int 8613ctl_read_write(struct ctl_scsiio *ctsio) 8614{ 8615 struct ctl_lun *lun = CTL_LUN(ctsio); 8616 struct ctl_lba_len_flags *lbalen; 8617 uint64_t lba; 8618 uint32_t num_blocks; 8619 int flags, retval; 8620 int isread; 8621 8622 CTL_DEBUG_PRINT(("ctl_read_write: command: %#x\n", ctsio->cdb[0])); 8623 8624 flags = 0; 8625 isread = ctsio->cdb[0] == READ_6 || ctsio->cdb[0] == READ_10 8626 || ctsio->cdb[0] == READ_12 || ctsio->cdb[0] == READ_16; 8627 switch (ctsio->cdb[0]) { 8628 case READ_6: 8629 case WRITE_6: { 8630 struct scsi_rw_6 *cdb; 8631 8632 cdb = (struct scsi_rw_6 *)ctsio->cdb; 8633 8634 lba = scsi_3btoul(cdb->addr); 8635 /* only 5 bits are valid in the most significant address byte */ 8636 lba &= 0x1fffff; 8637 num_blocks = cdb->length; 8638 /* 8639 * This is correct according to SBC-2. 8640 */ 8641 if (num_blocks == 0) 8642 num_blocks = 256; 8643 break; 8644 } 8645 case READ_10: 8646 case WRITE_10: { 8647 struct scsi_rw_10 *cdb; 8648 8649 cdb = (struct scsi_rw_10 *)ctsio->cdb; 8650 if (cdb->byte2 & SRW10_FUA) 8651 flags |= CTL_LLF_FUA; 8652 if (cdb->byte2 & SRW10_DPO) 8653 flags |= CTL_LLF_DPO; 8654 lba = scsi_4btoul(cdb->addr); 8655 num_blocks = scsi_2btoul(cdb->length); 8656 break; 8657 } 8658 case WRITE_VERIFY_10: { 8659 struct scsi_write_verify_10 *cdb; 8660 8661 cdb = (struct scsi_write_verify_10 *)ctsio->cdb; 8662 flags |= CTL_LLF_FUA; 8663 if (cdb->byte2 & SWV_DPO) 8664 flags |= CTL_LLF_DPO; 8665 lba = scsi_4btoul(cdb->addr); 8666 num_blocks = scsi_2btoul(cdb->length); 8667 break; 8668 } 8669 case READ_12: 8670 case WRITE_12: { 8671 struct scsi_rw_12 *cdb; 8672 8673 cdb = (struct scsi_rw_12 *)ctsio->cdb; 8674 if (cdb->byte2 & SRW12_FUA) 8675 flags |= CTL_LLF_FUA; 8676 if (cdb->byte2 & SRW12_DPO) 8677 flags |= CTL_LLF_DPO; 8678 lba = scsi_4btoul(cdb->addr); 8679 num_blocks = scsi_4btoul(cdb->length); 8680 break; 8681 } 8682 case WRITE_VERIFY_12: { 8683 struct scsi_write_verify_12 *cdb; 8684 8685 cdb = (struct scsi_write_verify_12 *)ctsio->cdb; 8686 flags |= CTL_LLF_FUA; 8687 if (cdb->byte2 & SWV_DPO) 8688 flags |= CTL_LLF_DPO; 8689 lba = scsi_4btoul(cdb->addr); 8690 num_blocks = scsi_4btoul(cdb->length); 8691 break; 8692 } 8693 case READ_16: 8694 case WRITE_16: { 8695 struct scsi_rw_16 *cdb; 8696 8697 cdb = (struct scsi_rw_16 *)ctsio->cdb; 8698 if (cdb->byte2 & SRW12_FUA) 8699 flags |= CTL_LLF_FUA; 8700 if (cdb->byte2 & SRW12_DPO) 8701 flags |= CTL_LLF_DPO; 8702 lba = scsi_8btou64(cdb->addr); 8703 num_blocks = scsi_4btoul(cdb->length); 8704 break; 8705 } 8706 case WRITE_ATOMIC_16: { 8707 struct scsi_write_atomic_16 *cdb; 8708 8709 if (lun->be_lun->atomicblock == 0) { 8710 ctl_set_invalid_opcode(ctsio); 8711 ctl_done((union ctl_io *)ctsio); 8712 return (CTL_RETVAL_COMPLETE); 8713 } 8714 8715 cdb = (struct scsi_write_atomic_16 *)ctsio->cdb; 8716 if (cdb->byte2 & SRW12_FUA) 8717 flags |= CTL_LLF_FUA; 8718 if (cdb->byte2 & SRW12_DPO) 8719 flags |= CTL_LLF_DPO; 8720 lba = scsi_8btou64(cdb->addr); 8721 num_blocks = scsi_2btoul(cdb->length); 8722 if (num_blocks > lun->be_lun->atomicblock) { 8723 ctl_set_invalid_field(ctsio, /*sks_valid*/ 1, 8724 /*command*/ 1, /*field*/ 12, /*bit_valid*/ 0, 8725 /*bit*/ 0); 8726 ctl_done((union ctl_io *)ctsio); 8727 return (CTL_RETVAL_COMPLETE); 8728 } 8729 break; 8730 } 8731 case WRITE_VERIFY_16: { 8732 struct scsi_write_verify_16 *cdb; 8733 8734 cdb = (struct scsi_write_verify_16 *)ctsio->cdb; 8735 flags |= CTL_LLF_FUA; 8736 if (cdb->byte2 & SWV_DPO) 8737 flags |= CTL_LLF_DPO; 8738 lba = scsi_8btou64(cdb->addr); 8739 num_blocks = scsi_4btoul(cdb->length); 8740 break; 8741 } 8742 default: 8743 /* 8744 * We got a command we don't support. This shouldn't 8745 * happen, commands should be filtered out above us. 8746 */ 8747 ctl_set_invalid_opcode(ctsio); 8748 ctl_done((union ctl_io *)ctsio); 8749 8750 return (CTL_RETVAL_COMPLETE); 8751 break; /* NOTREACHED */ 8752 } 8753 8754 /* 8755 * The first check is to make sure we're in bounds, the second 8756 * check is to catch wrap-around problems. If the lba + num blocks 8757 * is less than the lba, then we've wrapped around and the block 8758 * range is invalid anyway. 8759 */ 8760 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 8761 || ((lba + num_blocks) < lba)) { 8762 ctl_set_lba_out_of_range(ctsio, 8763 MAX(lba, lun->be_lun->maxlba + 1)); 8764 ctl_done((union ctl_io *)ctsio); 8765 return (CTL_RETVAL_COMPLETE); 8766 } 8767 8768 /* 8769 * According to SBC-3, a transfer length of 0 is not an error. 8770 * Note that this cannot happen with WRITE(6) or READ(6), since 0 8771 * translates to 256 blocks for those commands. 8772 */ 8773 if (num_blocks == 0) { 8774 ctl_set_success(ctsio); 8775 ctl_done((union ctl_io *)ctsio); 8776 return (CTL_RETVAL_COMPLETE); 8777 } 8778 8779 /* Set FUA and/or DPO if caches are disabled. */ 8780 if (isread) { 8781 if ((lun->MODE_CACHING.flags1 & SCP_RCD) != 0) 8782 flags |= CTL_LLF_FUA | CTL_LLF_DPO; 8783 } else { 8784 if ((lun->MODE_CACHING.flags1 & SCP_WCE) == 0) 8785 flags |= CTL_LLF_FUA; 8786 } 8787 8788 lbalen = (struct ctl_lba_len_flags *) 8789 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 8790 lbalen->lba = lba; 8791 lbalen->len = num_blocks; 8792 lbalen->flags = (isread ? CTL_LLF_READ : CTL_LLF_WRITE) | flags; 8793 8794 ctsio->kern_total_len = num_blocks * lun->be_lun->blocksize; 8795 ctsio->kern_rel_offset = 0; 8796 8797 CTL_DEBUG_PRINT(("ctl_read_write: calling data_submit()\n")); 8798 8799 retval = lun->backend->data_submit((union ctl_io *)ctsio); 8800 return (retval); 8801} 8802 8803static int 8804ctl_cnw_cont(union ctl_io *io) 8805{ 8806 struct ctl_lun *lun = CTL_LUN(io); 8807 struct ctl_scsiio *ctsio; 8808 struct ctl_lba_len_flags *lbalen; 8809 int retval; 8810 8811 ctsio = &io->scsiio; 8812 ctsio->io_hdr.status = CTL_STATUS_NONE; 8813 ctsio->io_hdr.flags &= ~CTL_FLAG_IO_CONT; 8814 lbalen = (struct ctl_lba_len_flags *) 8815 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 8816 lbalen->flags &= ~CTL_LLF_COMPARE; 8817 lbalen->flags |= CTL_LLF_WRITE; 8818 8819 CTL_DEBUG_PRINT(("ctl_cnw_cont: calling data_submit()\n")); 8820 retval = lun->backend->data_submit((union ctl_io *)ctsio); 8821 return (retval); 8822} 8823 8824int 8825ctl_cnw(struct ctl_scsiio *ctsio) 8826{ 8827 struct ctl_lun *lun = CTL_LUN(ctsio); 8828 struct ctl_lba_len_flags *lbalen; 8829 uint64_t lba; 8830 uint32_t num_blocks; 8831 int flags, retval; 8832 8833 CTL_DEBUG_PRINT(("ctl_cnw: command: %#x\n", ctsio->cdb[0])); 8834 8835 flags = 0; 8836 switch (ctsio->cdb[0]) { 8837 case COMPARE_AND_WRITE: { 8838 struct scsi_compare_and_write *cdb; 8839 8840 cdb = (struct scsi_compare_and_write *)ctsio->cdb; 8841 if (cdb->byte2 & SRW10_FUA) 8842 flags |= CTL_LLF_FUA; 8843 if (cdb->byte2 & SRW10_DPO) 8844 flags |= CTL_LLF_DPO; 8845 lba = scsi_8btou64(cdb->addr); 8846 num_blocks = cdb->length; 8847 break; 8848 } 8849 default: 8850 /* 8851 * We got a command we don't support. This shouldn't 8852 * happen, commands should be filtered out above us. 8853 */ 8854 ctl_set_invalid_opcode(ctsio); 8855 ctl_done((union ctl_io *)ctsio); 8856 8857 return (CTL_RETVAL_COMPLETE); 8858 break; /* NOTREACHED */ 8859 } 8860 8861 /* 8862 * The first check is to make sure we're in bounds, the second 8863 * check is to catch wrap-around problems. If the lba + num blocks 8864 * is less than the lba, then we've wrapped around and the block 8865 * range is invalid anyway. 8866 */ 8867 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 8868 || ((lba + num_blocks) < lba)) { 8869 ctl_set_lba_out_of_range(ctsio, 8870 MAX(lba, lun->be_lun->maxlba + 1)); 8871 ctl_done((union ctl_io *)ctsio); 8872 return (CTL_RETVAL_COMPLETE); 8873 } 8874 8875 /* 8876 * According to SBC-3, a transfer length of 0 is not an error. 8877 */ 8878 if (num_blocks == 0) { 8879 ctl_set_success(ctsio); 8880 ctl_done((union ctl_io *)ctsio); 8881 return (CTL_RETVAL_COMPLETE); 8882 } 8883 8884 /* Set FUA if write cache is disabled. */ 8885 if ((lun->MODE_CACHING.flags1 & SCP_WCE) == 0) 8886 flags |= CTL_LLF_FUA; 8887 8888 ctsio->kern_total_len = 2 * num_blocks * lun->be_lun->blocksize; 8889 ctsio->kern_rel_offset = 0; 8890 8891 /* 8892 * Set the IO_CONT flag, so that if this I/O gets passed to 8893 * ctl_data_submit_done(), it'll get passed back to 8894 * ctl_ctl_cnw_cont() for further processing. 8895 */ 8896 ctsio->io_hdr.flags |= CTL_FLAG_IO_CONT; 8897 ctsio->io_cont = ctl_cnw_cont; 8898 8899 lbalen = (struct ctl_lba_len_flags *) 8900 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 8901 lbalen->lba = lba; 8902 lbalen->len = num_blocks; 8903 lbalen->flags = CTL_LLF_COMPARE | flags; 8904 8905 CTL_DEBUG_PRINT(("ctl_cnw: calling data_submit()\n")); 8906 retval = lun->backend->data_submit((union ctl_io *)ctsio); 8907 return (retval); 8908} 8909 8910int 8911ctl_verify(struct ctl_scsiio *ctsio) 8912{ 8913 struct ctl_lun *lun = CTL_LUN(ctsio); 8914 struct ctl_lba_len_flags *lbalen; 8915 uint64_t lba; 8916 uint32_t num_blocks; 8917 int bytchk, flags; 8918 int retval; 8919 8920 CTL_DEBUG_PRINT(("ctl_verify: command: %#x\n", ctsio->cdb[0])); 8921 8922 bytchk = 0; 8923 flags = CTL_LLF_FUA; 8924 switch (ctsio->cdb[0]) { 8925 case VERIFY_10: { 8926 struct scsi_verify_10 *cdb; 8927 8928 cdb = (struct scsi_verify_10 *)ctsio->cdb; 8929 if (cdb->byte2 & SVFY_BYTCHK) 8930 bytchk = 1; 8931 if (cdb->byte2 & SVFY_DPO) 8932 flags |= CTL_LLF_DPO; 8933 lba = scsi_4btoul(cdb->addr); 8934 num_blocks = scsi_2btoul(cdb->length); 8935 break; 8936 } 8937 case VERIFY_12: { 8938 struct scsi_verify_12 *cdb; 8939 8940 cdb = (struct scsi_verify_12 *)ctsio->cdb; 8941 if (cdb->byte2 & SVFY_BYTCHK) 8942 bytchk = 1; 8943 if (cdb->byte2 & SVFY_DPO) 8944 flags |= CTL_LLF_DPO; 8945 lba = scsi_4btoul(cdb->addr); 8946 num_blocks = scsi_4btoul(cdb->length); 8947 break; 8948 } 8949 case VERIFY_16: { 8950 struct scsi_rw_16 *cdb; 8951 8952 cdb = (struct scsi_rw_16 *)ctsio->cdb; 8953 if (cdb->byte2 & SVFY_BYTCHK) 8954 bytchk = 1; 8955 if (cdb->byte2 & SVFY_DPO) 8956 flags |= CTL_LLF_DPO; 8957 lba = scsi_8btou64(cdb->addr); 8958 num_blocks = scsi_4btoul(cdb->length); 8959 break; 8960 } 8961 default: 8962 /* 8963 * We got a command we don't support. This shouldn't 8964 * happen, commands should be filtered out above us. 8965 */ 8966 ctl_set_invalid_opcode(ctsio); 8967 ctl_done((union ctl_io *)ctsio); 8968 return (CTL_RETVAL_COMPLETE); 8969 } 8970 8971 /* 8972 * The first check is to make sure we're in bounds, the second 8973 * check is to catch wrap-around problems. If the lba + num blocks 8974 * is less than the lba, then we've wrapped around and the block 8975 * range is invalid anyway. 8976 */ 8977 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 8978 || ((lba + num_blocks) < lba)) { 8979 ctl_set_lba_out_of_range(ctsio, 8980 MAX(lba, lun->be_lun->maxlba + 1)); 8981 ctl_done((union ctl_io *)ctsio); 8982 return (CTL_RETVAL_COMPLETE); 8983 } 8984 8985 /* 8986 * According to SBC-3, a transfer length of 0 is not an error. 8987 */ 8988 if (num_blocks == 0) { 8989 ctl_set_success(ctsio); 8990 ctl_done((union ctl_io *)ctsio); 8991 return (CTL_RETVAL_COMPLETE); 8992 } 8993 8994 lbalen = (struct ctl_lba_len_flags *) 8995 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 8996 lbalen->lba = lba; 8997 lbalen->len = num_blocks; 8998 if (bytchk) { 8999 lbalen->flags = CTL_LLF_COMPARE | flags; 9000 ctsio->kern_total_len = num_blocks * lun->be_lun->blocksize; 9001 } else { 9002 lbalen->flags = CTL_LLF_VERIFY | flags; 9003 ctsio->kern_total_len = 0; 9004 } 9005 ctsio->kern_rel_offset = 0; 9006 9007 CTL_DEBUG_PRINT(("ctl_verify: calling data_submit()\n")); 9008 retval = lun->backend->data_submit((union ctl_io *)ctsio); 9009 return (retval); 9010} 9011 9012int 9013ctl_report_luns(struct ctl_scsiio *ctsio) 9014{ 9015 struct ctl_softc *softc = CTL_SOFTC(ctsio); 9016 struct ctl_port *port = CTL_PORT(ctsio); 9017 struct ctl_lun *lun, *request_lun = CTL_LUN(ctsio); 9018 struct scsi_report_luns *cdb; 9019 struct scsi_report_luns_data *lun_data; 9020 int num_filled, num_luns, num_port_luns, retval; 9021 uint32_t alloc_len, lun_datalen; 9022 uint32_t initidx, targ_lun_id, lun_id; 9023 9024 retval = CTL_RETVAL_COMPLETE; 9025 cdb = (struct scsi_report_luns *)ctsio->cdb; 9026 9027 CTL_DEBUG_PRINT(("ctl_report_luns\n")); 9028 9029 num_luns = 0; 9030 num_port_luns = port->lun_map ? port->lun_map_size : CTL_MAX_LUNS; 9031 mtx_lock(&softc->ctl_lock); 9032 for (targ_lun_id = 0; targ_lun_id < num_port_luns; targ_lun_id++) { 9033 if (ctl_lun_map_from_port(port, targ_lun_id) != UINT32_MAX) 9034 num_luns++; 9035 } 9036 mtx_unlock(&softc->ctl_lock); 9037 9038 switch (cdb->select_report) { 9039 case RPL_REPORT_DEFAULT: 9040 case RPL_REPORT_ALL: 9041 case RPL_REPORT_NONSUBSID: 9042 break; 9043 case RPL_REPORT_WELLKNOWN: 9044 case RPL_REPORT_ADMIN: 9045 case RPL_REPORT_CONGLOM: 9046 num_luns = 0; 9047 break; 9048 default: 9049 ctl_set_invalid_field(ctsio, 9050 /*sks_valid*/ 1, 9051 /*command*/ 1, 9052 /*field*/ 2, 9053 /*bit_valid*/ 0, 9054 /*bit*/ 0); 9055 ctl_done((union ctl_io *)ctsio); 9056 return (retval); 9057 break; /* NOTREACHED */ 9058 } 9059 9060 alloc_len = scsi_4btoul(cdb->length); 9061 /* 9062 * The initiator has to allocate at least 16 bytes for this request, 9063 * so he can at least get the header and the first LUN. Otherwise 9064 * we reject the request (per SPC-3 rev 14, section 6.21). 9065 */ 9066 if (alloc_len < (sizeof(struct scsi_report_luns_data) + 9067 sizeof(struct scsi_report_luns_lundata))) { 9068 ctl_set_invalid_field(ctsio, 9069 /*sks_valid*/ 1, 9070 /*command*/ 1, 9071 /*field*/ 6, 9072 /*bit_valid*/ 0, 9073 /*bit*/ 0); 9074 ctl_done((union ctl_io *)ctsio); 9075 return (retval); 9076 } 9077 9078 lun_datalen = sizeof(*lun_data) + 9079 (num_luns * sizeof(struct scsi_report_luns_lundata)); 9080 9081 ctsio->kern_data_ptr = malloc(lun_datalen, M_CTL, M_WAITOK | M_ZERO); 9082 lun_data = (struct scsi_report_luns_data *)ctsio->kern_data_ptr; 9083 ctsio->kern_sg_entries = 0; 9084 9085 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 9086 9087 mtx_lock(&softc->ctl_lock); 9088 for (targ_lun_id = 0, num_filled = 0; 9089 targ_lun_id < num_port_luns && num_filled < num_luns; 9090 targ_lun_id++) { 9091 lun_id = ctl_lun_map_from_port(port, targ_lun_id); 9092 if (lun_id == UINT32_MAX) 9093 continue; 9094 lun = softc->ctl_luns[lun_id]; 9095 if (lun == NULL) 9096 continue; 9097 9098 be64enc(lun_data->luns[num_filled++].lundata, 9099 ctl_encode_lun(targ_lun_id)); 9100 9101 /* 9102 * According to SPC-3, rev 14 section 6.21: 9103 * 9104 * "The execution of a REPORT LUNS command to any valid and 9105 * installed logical unit shall clear the REPORTED LUNS DATA 9106 * HAS CHANGED unit attention condition for all logical 9107 * units of that target with respect to the requesting 9108 * initiator. A valid and installed logical unit is one 9109 * having a PERIPHERAL QUALIFIER of 000b in the standard 9110 * INQUIRY data (see 6.4.2)." 9111 * 9112 * If request_lun is NULL, the LUN this report luns command 9113 * was issued to is either disabled or doesn't exist. In that 9114 * case, we shouldn't clear any pending lun change unit 9115 * attention. 9116 */ 9117 if (request_lun != NULL) { 9118 mtx_lock(&lun->lun_lock); 9119 ctl_clr_ua(lun, initidx, CTL_UA_LUN_CHANGE); 9120 mtx_unlock(&lun->lun_lock); 9121 } 9122 } 9123 mtx_unlock(&softc->ctl_lock); 9124 9125 /* 9126 * It's quite possible that we've returned fewer LUNs than we allocated 9127 * space for. Trim it. 9128 */ 9129 lun_datalen = sizeof(*lun_data) + 9130 (num_filled * sizeof(struct scsi_report_luns_lundata)); 9131 9132 if (lun_datalen < alloc_len) { 9133 ctsio->residual = alloc_len - lun_datalen; 9134 ctsio->kern_data_len = lun_datalen; 9135 ctsio->kern_total_len = lun_datalen; 9136 } else { 9137 ctsio->residual = 0; 9138 ctsio->kern_data_len = alloc_len; 9139 ctsio->kern_total_len = alloc_len; 9140 } 9141 ctsio->kern_data_resid = 0; 9142 ctsio->kern_rel_offset = 0; 9143 ctsio->kern_sg_entries = 0; 9144 9145 /* 9146 * We set this to the actual data length, regardless of how much 9147 * space we actually have to return results. If the user looks at 9148 * this value, he'll know whether or not he allocated enough space 9149 * and reissue the command if necessary. We don't support well 9150 * known logical units, so if the user asks for that, return none. 9151 */ 9152 scsi_ulto4b(lun_datalen - 8, lun_data->length); 9153 9154 /* 9155 * We can only return SCSI_STATUS_CHECK_COND when we can't satisfy 9156 * this request. 9157 */ 9158 ctl_set_success(ctsio); 9159 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9160 ctsio->be_move_done = ctl_config_move_done; 9161 ctl_datamove((union ctl_io *)ctsio); 9162 return (retval); 9163} 9164 9165int 9166ctl_request_sense(struct ctl_scsiio *ctsio) 9167{ 9168 struct ctl_softc *softc = CTL_SOFTC(ctsio); 9169 struct ctl_lun *lun = CTL_LUN(ctsio); 9170 struct scsi_request_sense *cdb; 9171 struct scsi_sense_data *sense_ptr; 9172 uint32_t initidx; 9173 int have_error; 9174 u_int sense_len = SSD_FULL_SIZE; 9175 scsi_sense_data_type sense_format; 9176 ctl_ua_type ua_type; 9177 uint8_t asc = 0, ascq = 0; 9178 9179 cdb = (struct scsi_request_sense *)ctsio->cdb; 9180 9181 CTL_DEBUG_PRINT(("ctl_request_sense\n")); 9182 9183 /* 9184 * Determine which sense format the user wants. 9185 */ 9186 if (cdb->byte2 & SRS_DESC) 9187 sense_format = SSD_TYPE_DESC; 9188 else 9189 sense_format = SSD_TYPE_FIXED; 9190 9191 ctsio->kern_data_ptr = malloc(sizeof(*sense_ptr), M_CTL, M_WAITOK); 9192 sense_ptr = (struct scsi_sense_data *)ctsio->kern_data_ptr; 9193 ctsio->kern_sg_entries = 0; 9194 9195 /* 9196 * struct scsi_sense_data, which is currently set to 256 bytes, is 9197 * larger than the largest allowed value for the length field in the 9198 * REQUEST SENSE CDB, which is 252 bytes as of SPC-4. 9199 */ 9200 ctsio->residual = 0; 9201 ctsio->kern_data_len = cdb->length; 9202 ctsio->kern_total_len = cdb->length; 9203 9204 ctsio->kern_data_resid = 0; 9205 ctsio->kern_rel_offset = 0; 9206 ctsio->kern_sg_entries = 0; 9207 9208 /* 9209 * If we don't have a LUN, we don't have any pending sense. 9210 */ 9211 if (lun == NULL || 9212 ((lun->flags & CTL_LUN_PRIMARY_SC) == 0 && 9213 softc->ha_link < CTL_HA_LINK_UNKNOWN)) { 9214 /* "Logical unit not supported" */ 9215 ctl_set_sense_data(sense_ptr, &sense_len, NULL, sense_format, 9216 /*current_error*/ 1, 9217 /*sense_key*/ SSD_KEY_ILLEGAL_REQUEST, 9218 /*asc*/ 0x25, 9219 /*ascq*/ 0x00, 9220 SSD_ELEM_NONE); 9221 goto send; 9222 } 9223 9224 have_error = 0; 9225 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 9226 /* 9227 * Check for pending sense, and then for pending unit attentions. 9228 * Pending sense gets returned first, then pending unit attentions. 9229 */ 9230 mtx_lock(&lun->lun_lock); 9231#ifdef CTL_WITH_CA 9232 if (ctl_is_set(lun->have_ca, initidx)) { 9233 scsi_sense_data_type stored_format; 9234 9235 /* 9236 * Check to see which sense format was used for the stored 9237 * sense data. 9238 */ 9239 stored_format = scsi_sense_type(&lun->pending_sense[initidx]); 9240 9241 /* 9242 * If the user requested a different sense format than the 9243 * one we stored, then we need to convert it to the other 9244 * format. If we're going from descriptor to fixed format 9245 * sense data, we may lose things in translation, depending 9246 * on what options were used. 9247 * 9248 * If the stored format is SSD_TYPE_NONE (i.e. invalid), 9249 * for some reason we'll just copy it out as-is. 9250 */ 9251 if ((stored_format == SSD_TYPE_FIXED) 9252 && (sense_format == SSD_TYPE_DESC)) 9253 ctl_sense_to_desc((struct scsi_sense_data_fixed *) 9254 &lun->pending_sense[initidx], 9255 (struct scsi_sense_data_desc *)sense_ptr); 9256 else if ((stored_format == SSD_TYPE_DESC) 9257 && (sense_format == SSD_TYPE_FIXED)) 9258 ctl_sense_to_fixed((struct scsi_sense_data_desc *) 9259 &lun->pending_sense[initidx], 9260 (struct scsi_sense_data_fixed *)sense_ptr); 9261 else 9262 memcpy(sense_ptr, &lun->pending_sense[initidx], 9263 MIN(sizeof(*sense_ptr), 9264 sizeof(lun->pending_sense[initidx]))); 9265 9266 ctl_clear_mask(lun->have_ca, initidx); 9267 have_error = 1; 9268 } else 9269#endif 9270 if (have_error == 0) { 9271 ua_type = ctl_build_ua(lun, initidx, sense_ptr, &sense_len, 9272 sense_format); 9273 if (ua_type != CTL_UA_NONE) 9274 have_error = 1; 9275 } 9276 if (have_error == 0) { 9277 /* 9278 * Report informational exception if have one and allowed. 9279 */ 9280 if (lun->MODE_IE.mrie != SIEP_MRIE_NO) { 9281 asc = lun->ie_asc; 9282 ascq = lun->ie_ascq; 9283 } 9284 ctl_set_sense_data(sense_ptr, &sense_len, lun, sense_format, 9285 /*current_error*/ 1, 9286 /*sense_key*/ SSD_KEY_NO_SENSE, 9287 /*asc*/ asc, 9288 /*ascq*/ ascq, 9289 SSD_ELEM_NONE); 9290 } 9291 mtx_unlock(&lun->lun_lock); 9292 9293send: 9294 /* 9295 * We report the SCSI status as OK, since the status of the command 9296 * itself is OK. We're reporting sense as parameter data. 9297 */ 9298 ctl_set_success(ctsio); 9299 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9300 ctsio->be_move_done = ctl_config_move_done; 9301 ctl_datamove((union ctl_io *)ctsio); 9302 return (CTL_RETVAL_COMPLETE); 9303} 9304 9305int 9306ctl_tur(struct ctl_scsiio *ctsio) 9307{ 9308 9309 CTL_DEBUG_PRINT(("ctl_tur\n")); 9310 9311 ctl_set_success(ctsio); 9312 ctl_done((union ctl_io *)ctsio); 9313 9314 return (CTL_RETVAL_COMPLETE); 9315} 9316 9317/* 9318 * SCSI VPD page 0x00, the Supported VPD Pages page. 9319 */ 9320static int 9321ctl_inquiry_evpd_supported(struct ctl_scsiio *ctsio, int alloc_len) 9322{ 9323 struct ctl_lun *lun = CTL_LUN(ctsio); 9324 struct scsi_vpd_supported_pages *pages; 9325 int sup_page_size; 9326 int p; 9327 9328 sup_page_size = sizeof(struct scsi_vpd_supported_pages) * 9329 SCSI_EVPD_NUM_SUPPORTED_PAGES; 9330 ctsio->kern_data_ptr = malloc(sup_page_size, M_CTL, M_WAITOK | M_ZERO); 9331 pages = (struct scsi_vpd_supported_pages *)ctsio->kern_data_ptr; 9332 ctsio->kern_sg_entries = 0; 9333 9334 if (sup_page_size < alloc_len) { 9335 ctsio->residual = alloc_len - sup_page_size; 9336 ctsio->kern_data_len = sup_page_size; 9337 ctsio->kern_total_len = sup_page_size; 9338 } else { 9339 ctsio->residual = 0; 9340 ctsio->kern_data_len = alloc_len; 9341 ctsio->kern_total_len = alloc_len; 9342 } 9343 ctsio->kern_data_resid = 0; 9344 ctsio->kern_rel_offset = 0; 9345 ctsio->kern_sg_entries = 0; 9346 9347 /* 9348 * The control device is always connected. The disk device, on the 9349 * other hand, may not be online all the time. Need to change this 9350 * to figure out whether the disk device is actually online or not. 9351 */ 9352 if (lun != NULL) 9353 pages->device = (SID_QUAL_LU_CONNECTED << 5) | 9354 lun->be_lun->lun_type; 9355 else 9356 pages->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9357 9358 p = 0; 9359 /* Supported VPD pages */ 9360 pages->page_list[p++] = SVPD_SUPPORTED_PAGES; 9361 /* Serial Number */ 9362 pages->page_list[p++] = SVPD_UNIT_SERIAL_NUMBER; 9363 /* Device Identification */ 9364 pages->page_list[p++] = SVPD_DEVICE_ID; 9365 /* Extended INQUIRY Data */ 9366 pages->page_list[p++] = SVPD_EXTENDED_INQUIRY_DATA; 9367 /* Mode Page Policy */ 9368 pages->page_list[p++] = SVPD_MODE_PAGE_POLICY; 9369 /* SCSI Ports */ 9370 pages->page_list[p++] = SVPD_SCSI_PORTS; 9371 /* Third-party Copy */ 9372 pages->page_list[p++] = SVPD_SCSI_TPC; 9373 if (lun != NULL && lun->be_lun->lun_type == T_DIRECT) { 9374 /* Block limits */ 9375 pages->page_list[p++] = SVPD_BLOCK_LIMITS; 9376 /* Block Device Characteristics */ 9377 pages->page_list[p++] = SVPD_BDC; 9378 /* Logical Block Provisioning */ 9379 pages->page_list[p++] = SVPD_LBP; 9380 } 9381 pages->length = p; 9382 9383 ctl_set_success(ctsio); 9384 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9385 ctsio->be_move_done = ctl_config_move_done; 9386 ctl_datamove((union ctl_io *)ctsio); 9387 return (CTL_RETVAL_COMPLETE); 9388} 9389 9390/* 9391 * SCSI VPD page 0x80, the Unit Serial Number page. 9392 */ 9393static int 9394ctl_inquiry_evpd_serial(struct ctl_scsiio *ctsio, int alloc_len) 9395{ 9396 struct ctl_lun *lun = CTL_LUN(ctsio); 9397 struct scsi_vpd_unit_serial_number *sn_ptr; 9398 int data_len; 9399 9400 data_len = 4 + CTL_SN_LEN; 9401 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9402 sn_ptr = (struct scsi_vpd_unit_serial_number *)ctsio->kern_data_ptr; 9403 if (data_len < alloc_len) { 9404 ctsio->residual = alloc_len - data_len; 9405 ctsio->kern_data_len = data_len; 9406 ctsio->kern_total_len = data_len; 9407 } else { 9408 ctsio->residual = 0; 9409 ctsio->kern_data_len = alloc_len; 9410 ctsio->kern_total_len = alloc_len; 9411 } 9412 ctsio->kern_data_resid = 0; 9413 ctsio->kern_rel_offset = 0; 9414 ctsio->kern_sg_entries = 0; 9415 9416 /* 9417 * The control device is always connected. The disk device, on the 9418 * other hand, may not be online all the time. Need to change this 9419 * to figure out whether the disk device is actually online or not. 9420 */ 9421 if (lun != NULL) 9422 sn_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9423 lun->be_lun->lun_type; 9424 else 9425 sn_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9426 9427 sn_ptr->page_code = SVPD_UNIT_SERIAL_NUMBER; 9428 sn_ptr->length = CTL_SN_LEN; 9429 /* 9430 * If we don't have a LUN, we just leave the serial number as 9431 * all spaces. 9432 */ 9433 if (lun != NULL) { 9434 strncpy((char *)sn_ptr->serial_num, 9435 (char *)lun->be_lun->serial_num, CTL_SN_LEN); 9436 } else 9437 memset(sn_ptr->serial_num, 0x20, CTL_SN_LEN); 9438 9439 ctl_set_success(ctsio); 9440 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9441 ctsio->be_move_done = ctl_config_move_done; 9442 ctl_datamove((union ctl_io *)ctsio); 9443 return (CTL_RETVAL_COMPLETE); 9444} 9445 9446 9447/* 9448 * SCSI VPD page 0x86, the Extended INQUIRY Data page. 9449 */ 9450static int 9451ctl_inquiry_evpd_eid(struct ctl_scsiio *ctsio, int alloc_len) 9452{ 9453 struct ctl_lun *lun = CTL_LUN(ctsio); 9454 struct scsi_vpd_extended_inquiry_data *eid_ptr; 9455 int data_len; 9456 9457 data_len = sizeof(struct scsi_vpd_extended_inquiry_data); 9458 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9459 eid_ptr = (struct scsi_vpd_extended_inquiry_data *)ctsio->kern_data_ptr; 9460 ctsio->kern_sg_entries = 0; 9461 9462 if (data_len < alloc_len) { 9463 ctsio->residual = alloc_len - data_len; 9464 ctsio->kern_data_len = data_len; 9465 ctsio->kern_total_len = data_len; 9466 } else { 9467 ctsio->residual = 0; 9468 ctsio->kern_data_len = alloc_len; 9469 ctsio->kern_total_len = alloc_len; 9470 } 9471 ctsio->kern_data_resid = 0; 9472 ctsio->kern_rel_offset = 0; 9473 ctsio->kern_sg_entries = 0; 9474 9475 /* 9476 * The control device is always connected. The disk device, on the 9477 * other hand, may not be online all the time. 9478 */ 9479 if (lun != NULL) 9480 eid_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9481 lun->be_lun->lun_type; 9482 else 9483 eid_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9484 eid_ptr->page_code = SVPD_EXTENDED_INQUIRY_DATA; 9485 scsi_ulto2b(data_len - 4, eid_ptr->page_length); 9486 /* 9487 * We support head of queue, ordered and simple tags. 9488 */ 9489 eid_ptr->flags2 = SVPD_EID_HEADSUP | SVPD_EID_ORDSUP | SVPD_EID_SIMPSUP; 9490 /* 9491 * Volatile cache supported. 9492 */ 9493 eid_ptr->flags3 = SVPD_EID_V_SUP; 9494 9495 /* 9496 * This means that we clear the REPORTED LUNS DATA HAS CHANGED unit 9497 * attention for a particular IT nexus on all LUNs once we report 9498 * it to that nexus once. This bit is required as of SPC-4. 9499 */ 9500 eid_ptr->flags4 = SVPD_EID_LUICLR; 9501 9502 /* 9503 * We support revert to defaults (RTD) bit in MODE SELECT. 9504 */ 9505 eid_ptr->flags5 = SVPD_EID_RTD_SUP; 9506 9507 /* 9508 * XXX KDM in order to correctly answer this, we would need 9509 * information from the SIM to determine how much sense data it 9510 * can send. So this would really be a path inquiry field, most 9511 * likely. This can be set to a maximum of 252 according to SPC-4, 9512 * but the hardware may or may not be able to support that much. 9513 * 0 just means that the maximum sense data length is not reported. 9514 */ 9515 eid_ptr->max_sense_length = 0; 9516 9517 ctl_set_success(ctsio); 9518 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9519 ctsio->be_move_done = ctl_config_move_done; 9520 ctl_datamove((union ctl_io *)ctsio); 9521 return (CTL_RETVAL_COMPLETE); 9522} 9523 9524static int 9525ctl_inquiry_evpd_mpp(struct ctl_scsiio *ctsio, int alloc_len) 9526{ 9527 struct ctl_lun *lun = CTL_LUN(ctsio); 9528 struct scsi_vpd_mode_page_policy *mpp_ptr; 9529 int data_len; 9530 9531 data_len = sizeof(struct scsi_vpd_mode_page_policy) + 9532 sizeof(struct scsi_vpd_mode_page_policy_descr); 9533 9534 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9535 mpp_ptr = (struct scsi_vpd_mode_page_policy *)ctsio->kern_data_ptr; 9536 ctsio->kern_sg_entries = 0; 9537 9538 if (data_len < alloc_len) { 9539 ctsio->residual = alloc_len - data_len; 9540 ctsio->kern_data_len = data_len; 9541 ctsio->kern_total_len = data_len; 9542 } else { 9543 ctsio->residual = 0; 9544 ctsio->kern_data_len = alloc_len; 9545 ctsio->kern_total_len = alloc_len; 9546 } 9547 ctsio->kern_data_resid = 0; 9548 ctsio->kern_rel_offset = 0; 9549 ctsio->kern_sg_entries = 0; 9550 9551 /* 9552 * The control device is always connected. The disk device, on the 9553 * other hand, may not be online all the time. 9554 */ 9555 if (lun != NULL) 9556 mpp_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9557 lun->be_lun->lun_type; 9558 else 9559 mpp_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9560 mpp_ptr->page_code = SVPD_MODE_PAGE_POLICY; 9561 scsi_ulto2b(data_len - 4, mpp_ptr->page_length); 9562 mpp_ptr->descr[0].page_code = 0x3f; 9563 mpp_ptr->descr[0].subpage_code = 0xff; 9564 mpp_ptr->descr[0].policy = SVPD_MPP_SHARED; 9565 9566 ctl_set_success(ctsio); 9567 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9568 ctsio->be_move_done = ctl_config_move_done; 9569 ctl_datamove((union ctl_io *)ctsio); 9570 return (CTL_RETVAL_COMPLETE); 9571} 9572 9573/* 9574 * SCSI VPD page 0x83, the Device Identification page. 9575 */ 9576static int 9577ctl_inquiry_evpd_devid(struct ctl_scsiio *ctsio, int alloc_len) 9578{ 9579 struct ctl_softc *softc = CTL_SOFTC(ctsio); 9580 struct ctl_port *port = CTL_PORT(ctsio); 9581 struct ctl_lun *lun = CTL_LUN(ctsio); 9582 struct scsi_vpd_device_id *devid_ptr; 9583 struct scsi_vpd_id_descriptor *desc; 9584 int data_len, g; 9585 uint8_t proto; 9586 9587 data_len = sizeof(struct scsi_vpd_device_id) + 9588 sizeof(struct scsi_vpd_id_descriptor) + 9589 sizeof(struct scsi_vpd_id_rel_trgt_port_id) + 9590 sizeof(struct scsi_vpd_id_descriptor) + 9591 sizeof(struct scsi_vpd_id_trgt_port_grp_id); 9592 if (lun && lun->lun_devid) 9593 data_len += lun->lun_devid->len; 9594 if (port && port->port_devid) 9595 data_len += port->port_devid->len; 9596 if (port && port->target_devid) 9597 data_len += port->target_devid->len; 9598 9599 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9600 devid_ptr = (struct scsi_vpd_device_id *)ctsio->kern_data_ptr; 9601 ctsio->kern_sg_entries = 0; 9602 9603 if (data_len < alloc_len) { 9604 ctsio->residual = alloc_len - data_len; 9605 ctsio->kern_data_len = data_len; 9606 ctsio->kern_total_len = data_len; 9607 } else { 9608 ctsio->residual = 0; 9609 ctsio->kern_data_len = alloc_len; 9610 ctsio->kern_total_len = alloc_len; 9611 } 9612 ctsio->kern_data_resid = 0; 9613 ctsio->kern_rel_offset = 0; 9614 ctsio->kern_sg_entries = 0; 9615 9616 /* 9617 * The control device is always connected. The disk device, on the 9618 * other hand, may not be online all the time. 9619 */ 9620 if (lun != NULL) 9621 devid_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9622 lun->be_lun->lun_type; 9623 else 9624 devid_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9625 devid_ptr->page_code = SVPD_DEVICE_ID; 9626 scsi_ulto2b(data_len - 4, devid_ptr->length); 9627 9628 if (port && port->port_type == CTL_PORT_FC) 9629 proto = SCSI_PROTO_FC << 4; 9630 else if (port && port->port_type == CTL_PORT_ISCSI) 9631 proto = SCSI_PROTO_ISCSI << 4; 9632 else 9633 proto = SCSI_PROTO_SPI << 4; 9634 desc = (struct scsi_vpd_id_descriptor *)devid_ptr->desc_list; 9635 9636 /* 9637 * We're using a LUN association here. i.e., this device ID is a 9638 * per-LUN identifier. 9639 */ 9640 if (lun && lun->lun_devid) { 9641 memcpy(desc, lun->lun_devid->data, lun->lun_devid->len); 9642 desc = (struct scsi_vpd_id_descriptor *)((uint8_t *)desc + 9643 lun->lun_devid->len); 9644 } 9645 9646 /* 9647 * This is for the WWPN which is a port association. 9648 */ 9649 if (port && port->port_devid) { 9650 memcpy(desc, port->port_devid->data, port->port_devid->len); 9651 desc = (struct scsi_vpd_id_descriptor *)((uint8_t *)desc + 9652 port->port_devid->len); 9653 } 9654 9655 /* 9656 * This is for the Relative Target Port(type 4h) identifier 9657 */ 9658 desc->proto_codeset = proto | SVPD_ID_CODESET_BINARY; 9659 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_PORT | 9660 SVPD_ID_TYPE_RELTARG; 9661 desc->length = 4; 9662 scsi_ulto2b(ctsio->io_hdr.nexus.targ_port, &desc->identifier[2]); 9663 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 9664 sizeof(struct scsi_vpd_id_rel_trgt_port_id)); 9665 9666 /* 9667 * This is for the Target Port Group(type 5h) identifier 9668 */ 9669 desc->proto_codeset = proto | SVPD_ID_CODESET_BINARY; 9670 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_PORT | 9671 SVPD_ID_TYPE_TPORTGRP; 9672 desc->length = 4; 9673 if (softc->is_single || 9674 (port && port->status & CTL_PORT_STATUS_HA_SHARED)) 9675 g = 1; 9676 else 9677 g = 2 + ctsio->io_hdr.nexus.targ_port / softc->port_cnt; 9678 scsi_ulto2b(g, &desc->identifier[2]); 9679 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 9680 sizeof(struct scsi_vpd_id_trgt_port_grp_id)); 9681 9682 /* 9683 * This is for the Target identifier 9684 */ 9685 if (port && port->target_devid) { 9686 memcpy(desc, port->target_devid->data, port->target_devid->len); 9687 } 9688 9689 ctl_set_success(ctsio); 9690 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9691 ctsio->be_move_done = ctl_config_move_done; 9692 ctl_datamove((union ctl_io *)ctsio); 9693 return (CTL_RETVAL_COMPLETE); 9694} 9695 9696static int 9697ctl_inquiry_evpd_scsi_ports(struct ctl_scsiio *ctsio, int alloc_len) 9698{ 9699 struct ctl_softc *softc = CTL_SOFTC(ctsio); 9700 struct ctl_lun *lun = CTL_LUN(ctsio); 9701 struct scsi_vpd_scsi_ports *sp; 9702 struct scsi_vpd_port_designation *pd; 9703 struct scsi_vpd_port_designation_cont *pdc; 9704 struct ctl_port *port; 9705 int data_len, num_target_ports, iid_len, id_len; 9706 9707 num_target_ports = 0; 9708 iid_len = 0; 9709 id_len = 0; 9710 mtx_lock(&softc->ctl_lock); 9711 STAILQ_FOREACH(port, &softc->port_list, links) { 9712 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 9713 continue; 9714 if (lun != NULL && 9715 ctl_lun_map_to_port(port, lun->lun) == UINT32_MAX) 9716 continue; 9717 num_target_ports++; 9718 if (port->init_devid) 9719 iid_len += port->init_devid->len; 9720 if (port->port_devid) 9721 id_len += port->port_devid->len; 9722 } 9723 mtx_unlock(&softc->ctl_lock); 9724 9725 data_len = sizeof(struct scsi_vpd_scsi_ports) + 9726 num_target_ports * (sizeof(struct scsi_vpd_port_designation) + 9727 sizeof(struct scsi_vpd_port_designation_cont)) + iid_len + id_len; 9728 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9729 sp = (struct scsi_vpd_scsi_ports *)ctsio->kern_data_ptr; 9730 ctsio->kern_sg_entries = 0; 9731 9732 if (data_len < alloc_len) { 9733 ctsio->residual = alloc_len - data_len; 9734 ctsio->kern_data_len = data_len; 9735 ctsio->kern_total_len = data_len; 9736 } else { 9737 ctsio->residual = 0; 9738 ctsio->kern_data_len = alloc_len; 9739 ctsio->kern_total_len = alloc_len; 9740 } 9741 ctsio->kern_data_resid = 0; 9742 ctsio->kern_rel_offset = 0; 9743 ctsio->kern_sg_entries = 0; 9744 9745 /* 9746 * The control device is always connected. The disk device, on the 9747 * other hand, may not be online all the time. Need to change this 9748 * to figure out whether the disk device is actually online or not. 9749 */ 9750 if (lun != NULL) 9751 sp->device = (SID_QUAL_LU_CONNECTED << 5) | 9752 lun->be_lun->lun_type; 9753 else 9754 sp->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9755 9756 sp->page_code = SVPD_SCSI_PORTS; 9757 scsi_ulto2b(data_len - sizeof(struct scsi_vpd_scsi_ports), 9758 sp->page_length); 9759 pd = &sp->design[0]; 9760 9761 mtx_lock(&softc->ctl_lock); 9762 STAILQ_FOREACH(port, &softc->port_list, links) { 9763 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 9764 continue; 9765 if (lun != NULL && 9766 ctl_lun_map_to_port(port, lun->lun) == UINT32_MAX) 9767 continue; 9768 scsi_ulto2b(port->targ_port, pd->relative_port_id); 9769 if (port->init_devid) { 9770 iid_len = port->init_devid->len; 9771 memcpy(pd->initiator_transportid, 9772 port->init_devid->data, port->init_devid->len); 9773 } else 9774 iid_len = 0; 9775 scsi_ulto2b(iid_len, pd->initiator_transportid_length); 9776 pdc = (struct scsi_vpd_port_designation_cont *) 9777 (&pd->initiator_transportid[iid_len]); 9778 if (port->port_devid) { 9779 id_len = port->port_devid->len; 9780 memcpy(pdc->target_port_descriptors, 9781 port->port_devid->data, port->port_devid->len); 9782 } else 9783 id_len = 0; 9784 scsi_ulto2b(id_len, pdc->target_port_descriptors_length); 9785 pd = (struct scsi_vpd_port_designation *) 9786 ((uint8_t *)pdc->target_port_descriptors + id_len); 9787 } 9788 mtx_unlock(&softc->ctl_lock); 9789 9790 ctl_set_success(ctsio); 9791 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9792 ctsio->be_move_done = ctl_config_move_done; 9793 ctl_datamove((union ctl_io *)ctsio); 9794 return (CTL_RETVAL_COMPLETE); 9795} 9796 9797static int 9798ctl_inquiry_evpd_block_limits(struct ctl_scsiio *ctsio, int alloc_len) 9799{ 9800 struct ctl_lun *lun = CTL_LUN(ctsio); 9801 struct scsi_vpd_block_limits *bl_ptr; 9802 uint64_t ival; 9803 9804 ctsio->kern_data_ptr = malloc(sizeof(*bl_ptr), M_CTL, M_WAITOK | M_ZERO); 9805 bl_ptr = (struct scsi_vpd_block_limits *)ctsio->kern_data_ptr; 9806 ctsio->kern_sg_entries = 0; 9807 9808 if (sizeof(*bl_ptr) < alloc_len) { 9809 ctsio->residual = alloc_len - sizeof(*bl_ptr); 9810 ctsio->kern_data_len = sizeof(*bl_ptr); 9811 ctsio->kern_total_len = sizeof(*bl_ptr); 9812 } else { 9813 ctsio->residual = 0; 9814 ctsio->kern_data_len = alloc_len; 9815 ctsio->kern_total_len = alloc_len; 9816 } 9817 ctsio->kern_data_resid = 0; 9818 ctsio->kern_rel_offset = 0; 9819 ctsio->kern_sg_entries = 0; 9820 9821 /* 9822 * The control device is always connected. The disk device, on the 9823 * other hand, may not be online all the time. Need to change this 9824 * to figure out whether the disk device is actually online or not. 9825 */ 9826 if (lun != NULL) 9827 bl_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9828 lun->be_lun->lun_type; 9829 else 9830 bl_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9831 9832 bl_ptr->page_code = SVPD_BLOCK_LIMITS; 9833 scsi_ulto2b(sizeof(*bl_ptr) - 4, bl_ptr->page_length); 9834 bl_ptr->max_cmp_write_len = 0xff; 9835 scsi_ulto4b(0xffffffff, bl_ptr->max_txfer_len); 9836 if (lun != NULL) { 9837 scsi_ulto4b(lun->be_lun->opttxferlen, bl_ptr->opt_txfer_len); 9838 if (lun->be_lun->flags & CTL_LUN_FLAG_UNMAP) { 9839 ival = 0xffffffff; 9840 ctl_get_opt_number(&lun->be_lun->options, 9841 "unmap_max_lba", &ival); 9842 scsi_ulto4b(ival, bl_ptr->max_unmap_lba_cnt); 9843 ival = 0xffffffff; 9844 ctl_get_opt_number(&lun->be_lun->options, 9845 "unmap_max_descr", &ival); 9846 scsi_ulto4b(ival, bl_ptr->max_unmap_blk_cnt); 9847 if (lun->be_lun->ublockexp != 0) { 9848 scsi_ulto4b((1 << lun->be_lun->ublockexp), 9849 bl_ptr->opt_unmap_grain); 9850 scsi_ulto4b(0x80000000 | lun->be_lun->ublockoff, 9851 bl_ptr->unmap_grain_align); 9852 } 9853 } 9854 scsi_ulto4b(lun->be_lun->atomicblock, 9855 bl_ptr->max_atomic_transfer_length); 9856 scsi_ulto4b(0, bl_ptr->atomic_alignment); 9857 scsi_ulto4b(0, bl_ptr->atomic_transfer_length_granularity); 9858 scsi_ulto4b(0, bl_ptr->max_atomic_transfer_length_with_atomic_boundary); 9859 scsi_ulto4b(0, bl_ptr->max_atomic_boundary_size); 9860 ival = UINT64_MAX; 9861 ctl_get_opt_number(&lun->be_lun->options, "write_same_max_lba", &ival); 9862 scsi_u64to8b(ival, bl_ptr->max_write_same_length); 9863 } 9864 9865 ctl_set_success(ctsio); 9866 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9867 ctsio->be_move_done = ctl_config_move_done; 9868 ctl_datamove((union ctl_io *)ctsio); 9869 return (CTL_RETVAL_COMPLETE); 9870} 9871 9872static int 9873ctl_inquiry_evpd_bdc(struct ctl_scsiio *ctsio, int alloc_len) 9874{ 9875 struct ctl_lun *lun = CTL_LUN(ctsio); 9876 struct scsi_vpd_block_device_characteristics *bdc_ptr; 9877 const char *value; 9878 u_int i; 9879 9880 ctsio->kern_data_ptr = malloc(sizeof(*bdc_ptr), M_CTL, M_WAITOK | M_ZERO); 9881 bdc_ptr = (struct scsi_vpd_block_device_characteristics *)ctsio->kern_data_ptr; 9882 ctsio->kern_sg_entries = 0; 9883 9884 if (sizeof(*bdc_ptr) < alloc_len) { 9885 ctsio->residual = alloc_len - sizeof(*bdc_ptr); 9886 ctsio->kern_data_len = sizeof(*bdc_ptr); 9887 ctsio->kern_total_len = sizeof(*bdc_ptr); 9888 } else { 9889 ctsio->residual = 0; 9890 ctsio->kern_data_len = alloc_len; 9891 ctsio->kern_total_len = alloc_len; 9892 } 9893 ctsio->kern_data_resid = 0; 9894 ctsio->kern_rel_offset = 0; 9895 ctsio->kern_sg_entries = 0; 9896 9897 /* 9898 * The control device is always connected. The disk device, on the 9899 * other hand, may not be online all the time. Need to change this 9900 * to figure out whether the disk device is actually online or not. 9901 */ 9902 if (lun != NULL) 9903 bdc_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9904 lun->be_lun->lun_type; 9905 else 9906 bdc_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9907 bdc_ptr->page_code = SVPD_BDC; 9908 scsi_ulto2b(sizeof(*bdc_ptr) - 4, bdc_ptr->page_length); 9909 if (lun != NULL && 9910 (value = ctl_get_opt(&lun->be_lun->options, "rpm")) != NULL) 9911 i = strtol(value, NULL, 0); 9912 else 9913 i = CTL_DEFAULT_ROTATION_RATE; 9914 scsi_ulto2b(i, bdc_ptr->medium_rotation_rate); 9915 if (lun != NULL && 9916 (value = ctl_get_opt(&lun->be_lun->options, "formfactor")) != NULL) 9917 i = strtol(value, NULL, 0); 9918 else 9919 i = 0; 9920 bdc_ptr->wab_wac_ff = (i & 0x0f); 9921 bdc_ptr->flags = SVPD_FUAB | SVPD_VBULS; 9922 9923 ctl_set_success(ctsio); 9924 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9925 ctsio->be_move_done = ctl_config_move_done; 9926 ctl_datamove((union ctl_io *)ctsio); 9927 return (CTL_RETVAL_COMPLETE); 9928} 9929 9930static int 9931ctl_inquiry_evpd_lbp(struct ctl_scsiio *ctsio, int alloc_len) 9932{ 9933 struct ctl_lun *lun = CTL_LUN(ctsio); 9934 struct scsi_vpd_logical_block_prov *lbp_ptr; 9935 const char *value; 9936 9937 ctsio->kern_data_ptr = malloc(sizeof(*lbp_ptr), M_CTL, M_WAITOK | M_ZERO); 9938 lbp_ptr = (struct scsi_vpd_logical_block_prov *)ctsio->kern_data_ptr; 9939 ctsio->kern_sg_entries = 0; 9940 9941 if (sizeof(*lbp_ptr) < alloc_len) { 9942 ctsio->residual = alloc_len - sizeof(*lbp_ptr); 9943 ctsio->kern_data_len = sizeof(*lbp_ptr); 9944 ctsio->kern_total_len = sizeof(*lbp_ptr); 9945 } else { 9946 ctsio->residual = 0; 9947 ctsio->kern_data_len = alloc_len; 9948 ctsio->kern_total_len = alloc_len; 9949 } 9950 ctsio->kern_data_resid = 0; 9951 ctsio->kern_rel_offset = 0; 9952 ctsio->kern_sg_entries = 0; 9953 9954 /* 9955 * The control device is always connected. The disk device, on the 9956 * other hand, may not be online all the time. Need to change this 9957 * to figure out whether the disk device is actually online or not. 9958 */ 9959 if (lun != NULL) 9960 lbp_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9961 lun->be_lun->lun_type; 9962 else 9963 lbp_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9964 9965 lbp_ptr->page_code = SVPD_LBP; 9966 scsi_ulto2b(sizeof(*lbp_ptr) - 4, lbp_ptr->page_length); 9967 lbp_ptr->threshold_exponent = CTL_LBP_EXPONENT; 9968 if (lun != NULL && lun->be_lun->flags & CTL_LUN_FLAG_UNMAP) { 9969 lbp_ptr->flags = SVPD_LBP_UNMAP | SVPD_LBP_WS16 | 9970 SVPD_LBP_WS10 | SVPD_LBP_RZ | SVPD_LBP_ANC_SUP; 9971 value = ctl_get_opt(&lun->be_lun->options, "provisioning_type"); 9972 if (value != NULL) { 9973 if (strcmp(value, "resource") == 0) 9974 lbp_ptr->prov_type = SVPD_LBP_RESOURCE; 9975 else if (strcmp(value, "thin") == 0) 9976 lbp_ptr->prov_type = SVPD_LBP_THIN; 9977 } else 9978 lbp_ptr->prov_type = SVPD_LBP_THIN; 9979 } 9980 9981 ctl_set_success(ctsio); 9982 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9983 ctsio->be_move_done = ctl_config_move_done; 9984 ctl_datamove((union ctl_io *)ctsio); 9985 return (CTL_RETVAL_COMPLETE); 9986} 9987 9988/* 9989 * INQUIRY with the EVPD bit set. 9990 */ 9991static int 9992ctl_inquiry_evpd(struct ctl_scsiio *ctsio) 9993{ 9994 struct ctl_lun *lun = CTL_LUN(ctsio); 9995 struct scsi_inquiry *cdb; 9996 int alloc_len, retval; 9997 9998 cdb = (struct scsi_inquiry *)ctsio->cdb; 9999 alloc_len = scsi_2btoul(cdb->length); 10000 10001 switch (cdb->page_code) { 10002 case SVPD_SUPPORTED_PAGES: 10003 retval = ctl_inquiry_evpd_supported(ctsio, alloc_len); 10004 break; 10005 case SVPD_UNIT_SERIAL_NUMBER: 10006 retval = ctl_inquiry_evpd_serial(ctsio, alloc_len); 10007 break; 10008 case SVPD_DEVICE_ID: 10009 retval = ctl_inquiry_evpd_devid(ctsio, alloc_len); 10010 break; 10011 case SVPD_EXTENDED_INQUIRY_DATA: 10012 retval = ctl_inquiry_evpd_eid(ctsio, alloc_len); 10013 break; 10014 case SVPD_MODE_PAGE_POLICY: 10015 retval = ctl_inquiry_evpd_mpp(ctsio, alloc_len); 10016 break; 10017 case SVPD_SCSI_PORTS: 10018 retval = ctl_inquiry_evpd_scsi_ports(ctsio, alloc_len); 10019 break; 10020 case SVPD_SCSI_TPC: 10021 retval = ctl_inquiry_evpd_tpc(ctsio, alloc_len); 10022 break; 10023 case SVPD_BLOCK_LIMITS: 10024 if (lun == NULL || lun->be_lun->lun_type != T_DIRECT) 10025 goto err; 10026 retval = ctl_inquiry_evpd_block_limits(ctsio, alloc_len); 10027 break; 10028 case SVPD_BDC: 10029 if (lun == NULL || lun->be_lun->lun_type != T_DIRECT) 10030 goto err; 10031 retval = ctl_inquiry_evpd_bdc(ctsio, alloc_len); 10032 break; 10033 case SVPD_LBP: 10034 if (lun == NULL || lun->be_lun->lun_type != T_DIRECT) 10035 goto err; 10036 retval = ctl_inquiry_evpd_lbp(ctsio, alloc_len); 10037 break; 10038 default: 10039err: 10040 ctl_set_invalid_field(ctsio, 10041 /*sks_valid*/ 1, 10042 /*command*/ 1, 10043 /*field*/ 2, 10044 /*bit_valid*/ 0, 10045 /*bit*/ 0); 10046 ctl_done((union ctl_io *)ctsio); 10047 retval = CTL_RETVAL_COMPLETE; 10048 break; 10049 } 10050 10051 return (retval); 10052} 10053 10054/* 10055 * Standard INQUIRY data. 10056 */ 10057static int 10058ctl_inquiry_std(struct ctl_scsiio *ctsio) 10059{ 10060 struct ctl_softc *softc = CTL_SOFTC(ctsio); 10061 struct ctl_port *port = CTL_PORT(ctsio); 10062 struct ctl_lun *lun = CTL_LUN(ctsio); 10063 struct scsi_inquiry_data *inq_ptr; 10064 struct scsi_inquiry *cdb; 10065 char *val; 10066 uint32_t alloc_len, data_len; 10067 ctl_port_type port_type; 10068 10069 port_type = port->port_type; 10070 if (port_type == CTL_PORT_IOCTL || port_type == CTL_PORT_INTERNAL) 10071 port_type = CTL_PORT_SCSI; 10072 10073 cdb = (struct scsi_inquiry *)ctsio->cdb; 10074 alloc_len = scsi_2btoul(cdb->length); 10075 10076 /* 10077 * We malloc the full inquiry data size here and fill it 10078 * in. If the user only asks for less, we'll give him 10079 * that much. 10080 */ 10081 data_len = offsetof(struct scsi_inquiry_data, vendor_specific1); 10082 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 10083 inq_ptr = (struct scsi_inquiry_data *)ctsio->kern_data_ptr; 10084 ctsio->kern_sg_entries = 0; 10085 ctsio->kern_data_resid = 0; 10086 ctsio->kern_rel_offset = 0; 10087 10088 if (data_len < alloc_len) { 10089 ctsio->residual = alloc_len - data_len; 10090 ctsio->kern_data_len = data_len; 10091 ctsio->kern_total_len = data_len; 10092 } else { 10093 ctsio->residual = 0; 10094 ctsio->kern_data_len = alloc_len; 10095 ctsio->kern_total_len = alloc_len; 10096 } 10097 10098 if (lun != NULL) { 10099 if ((lun->flags & CTL_LUN_PRIMARY_SC) || 10100 softc->ha_link >= CTL_HA_LINK_UNKNOWN) { 10101 inq_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10102 lun->be_lun->lun_type; 10103 } else { 10104 inq_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | 10105 lun->be_lun->lun_type; 10106 } 10107 if (lun->flags & CTL_LUN_REMOVABLE) 10108 inq_ptr->dev_qual2 |= SID_RMB; 10109 } else 10110 inq_ptr->device = (SID_QUAL_BAD_LU << 5) | T_NODEVICE; 10111 10112 /* RMB in byte 2 is 0 */ 10113 inq_ptr->version = SCSI_REV_SPC5; 10114 10115 /* 10116 * According to SAM-3, even if a device only supports a single 10117 * level of LUN addressing, it should still set the HISUP bit: 10118 * 10119 * 4.9.1 Logical unit numbers overview 10120 * 10121 * All logical unit number formats described in this standard are 10122 * hierarchical in structure even when only a single level in that 10123 * hierarchy is used. The HISUP bit shall be set to one in the 10124 * standard INQUIRY data (see SPC-2) when any logical unit number 10125 * format described in this standard is used. Non-hierarchical 10126 * formats are outside the scope of this standard. 10127 * 10128 * Therefore we set the HiSup bit here. 10129 * 10130 * The response format is 2, per SPC-3. 10131 */ 10132 inq_ptr->response_format = SID_HiSup | 2; 10133 10134 inq_ptr->additional_length = data_len - 10135 (offsetof(struct scsi_inquiry_data, additional_length) + 1); 10136 CTL_DEBUG_PRINT(("additional_length = %d\n", 10137 inq_ptr->additional_length)); 10138 10139 inq_ptr->spc3_flags = SPC3_SID_3PC | SPC3_SID_TPGS_IMPLICIT; 10140 if (port_type == CTL_PORT_SCSI) 10141 inq_ptr->spc2_flags = SPC2_SID_ADDR16; 10142 inq_ptr->spc2_flags |= SPC2_SID_MultiP; 10143 inq_ptr->flags = SID_CmdQue; 10144 if (port_type == CTL_PORT_SCSI) 10145 inq_ptr->flags |= SID_WBus16 | SID_Sync; 10146 10147 /* 10148 * Per SPC-3, unused bytes in ASCII strings are filled with spaces. 10149 * We have 8 bytes for the vendor name, and 16 bytes for the device 10150 * name and 4 bytes for the revision. 10151 */ 10152 if (lun == NULL || (val = ctl_get_opt(&lun->be_lun->options, 10153 "vendor")) == NULL) { 10154 strncpy(inq_ptr->vendor, CTL_VENDOR, sizeof(inq_ptr->vendor)); 10155 } else { 10156 memset(inq_ptr->vendor, ' ', sizeof(inq_ptr->vendor)); 10157 strncpy(inq_ptr->vendor, val, 10158 min(sizeof(inq_ptr->vendor), strlen(val))); 10159 } 10160 if (lun == NULL) { 10161 strncpy(inq_ptr->product, CTL_DIRECT_PRODUCT, 10162 sizeof(inq_ptr->product)); 10163 } else if ((val = ctl_get_opt(&lun->be_lun->options, "product")) == NULL) { 10164 switch (lun->be_lun->lun_type) { 10165 case T_DIRECT: 10166 strncpy(inq_ptr->product, CTL_DIRECT_PRODUCT, 10167 sizeof(inq_ptr->product)); 10168 break; 10169 case T_PROCESSOR: 10170 strncpy(inq_ptr->product, CTL_PROCESSOR_PRODUCT, 10171 sizeof(inq_ptr->product)); 10172 break; 10173 case T_CDROM: 10174 strncpy(inq_ptr->product, CTL_CDROM_PRODUCT, 10175 sizeof(inq_ptr->product)); 10176 break; 10177 default: 10178 strncpy(inq_ptr->product, CTL_UNKNOWN_PRODUCT, 10179 sizeof(inq_ptr->product)); 10180 break; 10181 } 10182 } else { 10183 memset(inq_ptr->product, ' ', sizeof(inq_ptr->product)); 10184 strncpy(inq_ptr->product, val, 10185 min(sizeof(inq_ptr->product), strlen(val))); 10186 } 10187 10188 /* 10189 * XXX make this a macro somewhere so it automatically gets 10190 * incremented when we make changes. 10191 */ 10192 if (lun == NULL || (val = ctl_get_opt(&lun->be_lun->options, 10193 "revision")) == NULL) { 10194 strncpy(inq_ptr->revision, "0001", sizeof(inq_ptr->revision)); 10195 } else { 10196 memset(inq_ptr->revision, ' ', sizeof(inq_ptr->revision)); 10197 strncpy(inq_ptr->revision, val, 10198 min(sizeof(inq_ptr->revision), strlen(val))); 10199 } 10200 10201 /* 10202 * For parallel SCSI, we support double transition and single 10203 * transition clocking. We also support QAS (Quick Arbitration 10204 * and Selection) and Information Unit transfers on both the 10205 * control and array devices. 10206 */ 10207 if (port_type == CTL_PORT_SCSI) 10208 inq_ptr->spi3data = SID_SPI_CLOCK_DT_ST | SID_SPI_QAS | 10209 SID_SPI_IUS; 10210 10211 /* SAM-6 (no version claimed) */ 10212 scsi_ulto2b(0x00C0, inq_ptr->version1); 10213 /* SPC-5 (no version claimed) */ 10214 scsi_ulto2b(0x05C0, inq_ptr->version2); 10215 if (port_type == CTL_PORT_FC) { 10216 /* FCP-2 ANSI INCITS.350:2003 */ 10217 scsi_ulto2b(0x0917, inq_ptr->version3); 10218 } else if (port_type == CTL_PORT_SCSI) { 10219 /* SPI-4 ANSI INCITS.362:200x */ 10220 scsi_ulto2b(0x0B56, inq_ptr->version3); 10221 } else if (port_type == CTL_PORT_ISCSI) { 10222 /* iSCSI (no version claimed) */ 10223 scsi_ulto2b(0x0960, inq_ptr->version3); 10224 } else if (port_type == CTL_PORT_SAS) { 10225 /* SAS (no version claimed) */ 10226 scsi_ulto2b(0x0BE0, inq_ptr->version3); 10227 } 10228 10229 if (lun == NULL) { 10230 /* SBC-4 (no version claimed) */ 10231 scsi_ulto2b(0x0600, inq_ptr->version4); 10232 } else { 10233 switch (lun->be_lun->lun_type) { 10234 case T_DIRECT: 10235 /* SBC-4 (no version claimed) */ 10236 scsi_ulto2b(0x0600, inq_ptr->version4); 10237 break; 10238 case T_PROCESSOR: 10239 break; 10240 case T_CDROM: 10241 /* MMC-6 (no version claimed) */ 10242 scsi_ulto2b(0x04E0, inq_ptr->version4); 10243 break; 10244 default: 10245 break; 10246 } 10247 } 10248 10249 ctl_set_success(ctsio); 10250 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10251 ctsio->be_move_done = ctl_config_move_done; 10252 ctl_datamove((union ctl_io *)ctsio); 10253 return (CTL_RETVAL_COMPLETE); 10254} 10255 10256int 10257ctl_inquiry(struct ctl_scsiio *ctsio) 10258{ 10259 struct scsi_inquiry *cdb; 10260 int retval; 10261 10262 CTL_DEBUG_PRINT(("ctl_inquiry\n")); 10263 10264 cdb = (struct scsi_inquiry *)ctsio->cdb; 10265 if (cdb->byte2 & SI_EVPD) 10266 retval = ctl_inquiry_evpd(ctsio); 10267 else if (cdb->page_code == 0) 10268 retval = ctl_inquiry_std(ctsio); 10269 else { 10270 ctl_set_invalid_field(ctsio, 10271 /*sks_valid*/ 1, 10272 /*command*/ 1, 10273 /*field*/ 2, 10274 /*bit_valid*/ 0, 10275 /*bit*/ 0); 10276 ctl_done((union ctl_io *)ctsio); 10277 return (CTL_RETVAL_COMPLETE); 10278 } 10279 10280 return (retval); 10281} 10282 10283int 10284ctl_get_config(struct ctl_scsiio *ctsio) 10285{ 10286 struct ctl_lun *lun = CTL_LUN(ctsio); 10287 struct scsi_get_config_header *hdr; 10288 struct scsi_get_config_feature *feature; 10289 struct scsi_get_config *cdb; 10290 uint32_t alloc_len, data_len; 10291 int rt, starting; 10292 10293 cdb = (struct scsi_get_config *)ctsio->cdb; 10294 rt = (cdb->rt & SGC_RT_MASK); 10295 starting = scsi_2btoul(cdb->starting_feature); 10296 alloc_len = scsi_2btoul(cdb->length); 10297 10298 data_len = sizeof(struct scsi_get_config_header) + 10299 sizeof(struct scsi_get_config_feature) + 8 + 10300 sizeof(struct scsi_get_config_feature) + 8 + 10301 sizeof(struct scsi_get_config_feature) + 4 + 10302 sizeof(struct scsi_get_config_feature) + 4 + 10303 sizeof(struct scsi_get_config_feature) + 8 + 10304 sizeof(struct scsi_get_config_feature) + 10305 sizeof(struct scsi_get_config_feature) + 4 + 10306 sizeof(struct scsi_get_config_feature) + 4 + 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 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 10312 ctsio->kern_sg_entries = 0; 10313 ctsio->kern_data_resid = 0; 10314 ctsio->kern_rel_offset = 0; 10315 10316 hdr = (struct scsi_get_config_header *)ctsio->kern_data_ptr; 10317 if (lun->flags & CTL_LUN_NO_MEDIA) 10318 scsi_ulto2b(0x0000, hdr->current_profile); 10319 else 10320 scsi_ulto2b(0x0010, hdr->current_profile); 10321 feature = (struct scsi_get_config_feature *)(hdr + 1); 10322 10323 if (starting > 0x003b) 10324 goto done; 10325 if (starting > 0x003a) 10326 goto f3b; 10327 if (starting > 0x002b) 10328 goto f3a; 10329 if (starting > 0x002a) 10330 goto f2b; 10331 if (starting > 0x001f) 10332 goto f2a; 10333 if (starting > 0x001e) 10334 goto f1f; 10335 if (starting > 0x001d) 10336 goto f1e; 10337 if (starting > 0x0010) 10338 goto f1d; 10339 if (starting > 0x0003) 10340 goto f10; 10341 if (starting > 0x0002) 10342 goto f3; 10343 if (starting > 0x0001) 10344 goto f2; 10345 if (starting > 0x0000) 10346 goto f1; 10347 10348 /* Profile List */ 10349 scsi_ulto2b(0x0000, feature->feature_code); 10350 feature->flags = SGC_F_PERSISTENT | SGC_F_CURRENT; 10351 feature->add_length = 8; 10352 scsi_ulto2b(0x0008, &feature->feature_data[0]); /* CD-ROM */ 10353 feature->feature_data[2] = 0x00; 10354 scsi_ulto2b(0x0010, &feature->feature_data[4]); /* DVD-ROM */ 10355 feature->feature_data[6] = 0x01; 10356 feature = (struct scsi_get_config_feature *) 10357 &feature->feature_data[feature->add_length]; 10358 10359f1: /* Core */ 10360 scsi_ulto2b(0x0001, feature->feature_code); 10361 feature->flags = 0x08 | SGC_F_PERSISTENT | SGC_F_CURRENT; 10362 feature->add_length = 8; 10363 scsi_ulto4b(0x00000000, &feature->feature_data[0]); 10364 feature->feature_data[4] = 0x03; 10365 feature = (struct scsi_get_config_feature *) 10366 &feature->feature_data[feature->add_length]; 10367 10368f2: /* Morphing */ 10369 scsi_ulto2b(0x0002, feature->feature_code); 10370 feature->flags = 0x04 | SGC_F_PERSISTENT | SGC_F_CURRENT; 10371 feature->add_length = 4; 10372 feature->feature_data[0] = 0x02; 10373 feature = (struct scsi_get_config_feature *) 10374 &feature->feature_data[feature->add_length]; 10375 10376f3: /* Removable Medium */ 10377 scsi_ulto2b(0x0003, feature->feature_code); 10378 feature->flags = 0x04 | SGC_F_PERSISTENT | SGC_F_CURRENT; 10379 feature->add_length = 4; 10380 feature->feature_data[0] = 0x39; 10381 feature = (struct scsi_get_config_feature *) 10382 &feature->feature_data[feature->add_length]; 10383 10384 if (rt == SGC_RT_CURRENT && (lun->flags & CTL_LUN_NO_MEDIA)) 10385 goto done; 10386 10387f10: /* Random Read */ 10388 scsi_ulto2b(0x0010, feature->feature_code); 10389 feature->flags = 0x00; 10390 if ((lun->flags & CTL_LUN_NO_MEDIA) == 0) 10391 feature->flags |= SGC_F_CURRENT; 10392 feature->add_length = 8; 10393 scsi_ulto4b(lun->be_lun->blocksize, &feature->feature_data[0]); 10394 scsi_ulto2b(1, &feature->feature_data[4]); 10395 feature->feature_data[6] = 0x00; 10396 feature = (struct scsi_get_config_feature *) 10397 &feature->feature_data[feature->add_length]; 10398 10399f1d: /* Multi-Read */ 10400 scsi_ulto2b(0x001D, feature->feature_code); 10401 feature->flags = 0x00; 10402 if ((lun->flags & CTL_LUN_NO_MEDIA) == 0) 10403 feature->flags |= SGC_F_CURRENT; 10404 feature->add_length = 0; 10405 feature = (struct scsi_get_config_feature *) 10406 &feature->feature_data[feature->add_length]; 10407 10408f1e: /* CD Read */ 10409 scsi_ulto2b(0x001E, feature->feature_code); 10410 feature->flags = 0x00; 10411 if ((lun->flags & CTL_LUN_NO_MEDIA) == 0) 10412 feature->flags |= SGC_F_CURRENT; 10413 feature->add_length = 4; 10414 feature->feature_data[0] = 0x00; 10415 feature = (struct scsi_get_config_feature *) 10416 &feature->feature_data[feature->add_length]; 10417 10418f1f: /* DVD Read */ 10419 scsi_ulto2b(0x001F, feature->feature_code); 10420 feature->flags = 0x08; 10421 if ((lun->flags & CTL_LUN_NO_MEDIA) == 0) 10422 feature->flags |= SGC_F_CURRENT; 10423 feature->add_length = 4; 10424 feature->feature_data[0] = 0x01; 10425 feature->feature_data[2] = 0x03; 10426 feature = (struct scsi_get_config_feature *) 10427 &feature->feature_data[feature->add_length]; 10428 10429f2a: /* DVD+RW */ 10430 scsi_ulto2b(0x002A, feature->feature_code); 10431 feature->flags = 0x04; 10432 if ((lun->flags & CTL_LUN_NO_MEDIA) == 0) 10433 feature->flags |= SGC_F_CURRENT; 10434 feature->add_length = 4; 10435 feature->feature_data[0] = 0x00; 10436 feature->feature_data[1] = 0x00; 10437 feature = (struct scsi_get_config_feature *) 10438 &feature->feature_data[feature->add_length]; 10439 10440f2b: /* DVD+R */ 10441 scsi_ulto2b(0x002B, feature->feature_code); 10442 feature->flags = 0x00; 10443 if ((lun->flags & CTL_LUN_NO_MEDIA) == 0) 10444 feature->flags |= SGC_F_CURRENT; 10445 feature->add_length = 4; 10446 feature->feature_data[0] = 0x00; 10447 feature = (struct scsi_get_config_feature *) 10448 &feature->feature_data[feature->add_length]; 10449 10450f3a: /* DVD+RW Dual Layer */ 10451 scsi_ulto2b(0x003A, feature->feature_code); 10452 feature->flags = 0x00; 10453 if ((lun->flags & CTL_LUN_NO_MEDIA) == 0) 10454 feature->flags |= SGC_F_CURRENT; 10455 feature->add_length = 4; 10456 feature->feature_data[0] = 0x00; 10457 feature->feature_data[1] = 0x00; 10458 feature = (struct scsi_get_config_feature *) 10459 &feature->feature_data[feature->add_length]; 10460 10461f3b: /* DVD+R Dual Layer */ 10462 scsi_ulto2b(0x003B, feature->feature_code); 10463 feature->flags = 0x00; 10464 if ((lun->flags & CTL_LUN_NO_MEDIA) == 0) 10465 feature->flags |= SGC_F_CURRENT; 10466 feature->add_length = 4; 10467 feature->feature_data[0] = 0x00; 10468 feature = (struct scsi_get_config_feature *) 10469 &feature->feature_data[feature->add_length]; 10470 10471done: 10472 data_len = (uint8_t *)feature - (uint8_t *)hdr; 10473 if (rt == SGC_RT_SPECIFIC && data_len > 4) { 10474 feature = (struct scsi_get_config_feature *)(hdr + 1); 10475 if (scsi_2btoul(feature->feature_code) == starting) 10476 feature = (struct scsi_get_config_feature *) 10477 &feature->feature_data[feature->add_length]; 10478 data_len = (uint8_t *)feature - (uint8_t *)hdr; 10479 } 10480 scsi_ulto4b(data_len - 4, hdr->data_length); 10481 if (data_len < alloc_len) { 10482 ctsio->residual = alloc_len - data_len; 10483 ctsio->kern_data_len = data_len; 10484 ctsio->kern_total_len = data_len; 10485 } else { 10486 ctsio->residual = 0; 10487 ctsio->kern_data_len = alloc_len; 10488 ctsio->kern_total_len = alloc_len; 10489 } 10490 10491 ctl_set_success(ctsio); 10492 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10493 ctsio->be_move_done = ctl_config_move_done; 10494 ctl_datamove((union ctl_io *)ctsio); 10495 return (CTL_RETVAL_COMPLETE); 10496} 10497 10498int 10499ctl_get_event_status(struct ctl_scsiio *ctsio) 10500{ 10501 struct scsi_get_event_status_header *hdr; 10502 struct scsi_get_event_status *cdb; 10503 uint32_t alloc_len, data_len; 10504 int notif_class; 10505 10506 cdb = (struct scsi_get_event_status *)ctsio->cdb; 10507 if ((cdb->byte2 & SGESN_POLLED) == 0) { 10508 ctl_set_invalid_field(ctsio, /*sks_valid*/ 1, /*command*/ 1, 10509 /*field*/ 1, /*bit_valid*/ 1, /*bit*/ 0); 10510 ctl_done((union ctl_io *)ctsio); 10511 return (CTL_RETVAL_COMPLETE); 10512 } 10513 notif_class = cdb->notif_class; 10514 alloc_len = scsi_2btoul(cdb->length); 10515 10516 data_len = sizeof(struct scsi_get_event_status_header); 10517 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 10518 ctsio->kern_sg_entries = 0; 10519 ctsio->kern_data_resid = 0; 10520 ctsio->kern_rel_offset = 0; 10521 10522 if (data_len < alloc_len) { 10523 ctsio->residual = alloc_len - data_len; 10524 ctsio->kern_data_len = data_len; 10525 ctsio->kern_total_len = data_len; 10526 } else { 10527 ctsio->residual = 0; 10528 ctsio->kern_data_len = alloc_len; 10529 ctsio->kern_total_len = alloc_len; 10530 } 10531 10532 hdr = (struct scsi_get_event_status_header *)ctsio->kern_data_ptr; 10533 scsi_ulto2b(0, hdr->descr_length); 10534 hdr->nea_class = SGESN_NEA; 10535 hdr->supported_class = 0; 10536 10537 ctl_set_success(ctsio); 10538 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10539 ctsio->be_move_done = ctl_config_move_done; 10540 ctl_datamove((union ctl_io *)ctsio); 10541 return (CTL_RETVAL_COMPLETE); 10542} 10543 10544int 10545ctl_mechanism_status(struct ctl_scsiio *ctsio) 10546{ 10547 struct scsi_mechanism_status_header *hdr; 10548 struct scsi_mechanism_status *cdb; 10549 uint32_t alloc_len, data_len; 10550 10551 cdb = (struct scsi_mechanism_status *)ctsio->cdb; 10552 alloc_len = scsi_2btoul(cdb->length); 10553 10554 data_len = sizeof(struct scsi_mechanism_status_header); 10555 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 10556 ctsio->kern_sg_entries = 0; 10557 ctsio->kern_data_resid = 0; 10558 ctsio->kern_rel_offset = 0; 10559 10560 if (data_len < alloc_len) { 10561 ctsio->residual = alloc_len - data_len; 10562 ctsio->kern_data_len = data_len; 10563 ctsio->kern_total_len = data_len; 10564 } else { 10565 ctsio->residual = 0; 10566 ctsio->kern_data_len = alloc_len; 10567 ctsio->kern_total_len = alloc_len; 10568 } 10569 10570 hdr = (struct scsi_mechanism_status_header *)ctsio->kern_data_ptr; 10571 hdr->state1 = 0x00; 10572 hdr->state2 = 0xe0; 10573 scsi_ulto3b(0, hdr->lba); 10574 hdr->slots_num = 0; 10575 scsi_ulto2b(0, hdr->slots_length); 10576 10577 ctl_set_success(ctsio); 10578 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10579 ctsio->be_move_done = ctl_config_move_done; 10580 ctl_datamove((union ctl_io *)ctsio); 10581 return (CTL_RETVAL_COMPLETE); 10582} 10583 10584static void 10585ctl_ultomsf(uint32_t lba, uint8_t *buf) 10586{ 10587 10588 lba += 150; 10589 buf[0] = 0; 10590 buf[1] = bin2bcd((lba / 75) / 60); 10591 buf[2] = bin2bcd((lba / 75) % 60); 10592 buf[3] = bin2bcd(lba % 75); 10593} 10594 10595int 10596ctl_read_toc(struct ctl_scsiio *ctsio) 10597{ 10598 struct ctl_lun *lun = CTL_LUN(ctsio); 10599 struct scsi_read_toc_hdr *hdr; 10600 struct scsi_read_toc_type01_descr *descr; 10601 struct scsi_read_toc *cdb; 10602 uint32_t alloc_len, data_len; 10603 int format, msf; 10604 10605 cdb = (struct scsi_read_toc *)ctsio->cdb; 10606 msf = (cdb->byte2 & CD_MSF) != 0; 10607 format = cdb->format; 10608 alloc_len = scsi_2btoul(cdb->data_len); 10609 10610 data_len = sizeof(struct scsi_read_toc_hdr); 10611 if (format == 0) 10612 data_len += 2 * sizeof(struct scsi_read_toc_type01_descr); 10613 else 10614 data_len += sizeof(struct scsi_read_toc_type01_descr); 10615 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 10616 ctsio->kern_sg_entries = 0; 10617 ctsio->kern_data_resid = 0; 10618 ctsio->kern_rel_offset = 0; 10619 10620 if (data_len < alloc_len) { 10621 ctsio->residual = alloc_len - data_len; 10622 ctsio->kern_data_len = data_len; 10623 ctsio->kern_total_len = data_len; 10624 } else { 10625 ctsio->residual = 0; 10626 ctsio->kern_data_len = alloc_len; 10627 ctsio->kern_total_len = alloc_len; 10628 } 10629 10630 hdr = (struct scsi_read_toc_hdr *)ctsio->kern_data_ptr; 10631 if (format == 0) { 10632 scsi_ulto2b(0x12, hdr->data_length); 10633 hdr->first = 1; 10634 hdr->last = 1; 10635 descr = (struct scsi_read_toc_type01_descr *)(hdr + 1); 10636 descr->addr_ctl = 0x14; 10637 descr->track_number = 1; 10638 if (msf) 10639 ctl_ultomsf(0, descr->track_start); 10640 else 10641 scsi_ulto4b(0, descr->track_start); 10642 descr++; 10643 descr->addr_ctl = 0x14; 10644 descr->track_number = 0xaa; 10645 if (msf) 10646 ctl_ultomsf(lun->be_lun->maxlba+1, descr->track_start); 10647 else 10648 scsi_ulto4b(lun->be_lun->maxlba+1, descr->track_start); 10649 } else { 10650 scsi_ulto2b(0x0a, hdr->data_length); 10651 hdr->first = 1; 10652 hdr->last = 1; 10653 descr = (struct scsi_read_toc_type01_descr *)(hdr + 1); 10654 descr->addr_ctl = 0x14; 10655 descr->track_number = 1; 10656 if (msf) 10657 ctl_ultomsf(0, descr->track_start); 10658 else 10659 scsi_ulto4b(0, descr->track_start); 10660 } 10661 10662 ctl_set_success(ctsio); 10663 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10664 ctsio->be_move_done = ctl_config_move_done; 10665 ctl_datamove((union ctl_io *)ctsio); 10666 return (CTL_RETVAL_COMPLETE); 10667} 10668 10669/* 10670 * For known CDB types, parse the LBA and length. 10671 */ 10672static int 10673ctl_get_lba_len(union ctl_io *io, uint64_t *lba, uint64_t *len) 10674{ 10675 if (io->io_hdr.io_type != CTL_IO_SCSI) 10676 return (1); 10677 10678 switch (io->scsiio.cdb[0]) { 10679 case COMPARE_AND_WRITE: { 10680 struct scsi_compare_and_write *cdb; 10681 10682 cdb = (struct scsi_compare_and_write *)io->scsiio.cdb; 10683 10684 *lba = scsi_8btou64(cdb->addr); 10685 *len = cdb->length; 10686 break; 10687 } 10688 case READ_6: 10689 case WRITE_6: { 10690 struct scsi_rw_6 *cdb; 10691 10692 cdb = (struct scsi_rw_6 *)io->scsiio.cdb; 10693 10694 *lba = scsi_3btoul(cdb->addr); 10695 /* only 5 bits are valid in the most significant address byte */ 10696 *lba &= 0x1fffff; 10697 *len = cdb->length; 10698 break; 10699 } 10700 case READ_10: 10701 case WRITE_10: { 10702 struct scsi_rw_10 *cdb; 10703 10704 cdb = (struct scsi_rw_10 *)io->scsiio.cdb; 10705 10706 *lba = scsi_4btoul(cdb->addr); 10707 *len = scsi_2btoul(cdb->length); 10708 break; 10709 } 10710 case WRITE_VERIFY_10: { 10711 struct scsi_write_verify_10 *cdb; 10712 10713 cdb = (struct scsi_write_verify_10 *)io->scsiio.cdb; 10714 10715 *lba = scsi_4btoul(cdb->addr); 10716 *len = scsi_2btoul(cdb->length); 10717 break; 10718 } 10719 case READ_12: 10720 case WRITE_12: { 10721 struct scsi_rw_12 *cdb; 10722 10723 cdb = (struct scsi_rw_12 *)io->scsiio.cdb; 10724 10725 *lba = scsi_4btoul(cdb->addr); 10726 *len = scsi_4btoul(cdb->length); 10727 break; 10728 } 10729 case WRITE_VERIFY_12: { 10730 struct scsi_write_verify_12 *cdb; 10731 10732 cdb = (struct scsi_write_verify_12 *)io->scsiio.cdb; 10733 10734 *lba = scsi_4btoul(cdb->addr); 10735 *len = scsi_4btoul(cdb->length); 10736 break; 10737 } 10738 case READ_16: 10739 case WRITE_16: { 10740 struct scsi_rw_16 *cdb; 10741 10742 cdb = (struct scsi_rw_16 *)io->scsiio.cdb; 10743 10744 *lba = scsi_8btou64(cdb->addr); 10745 *len = scsi_4btoul(cdb->length); 10746 break; 10747 } 10748 case WRITE_ATOMIC_16: { 10749 struct scsi_write_atomic_16 *cdb; 10750 10751 cdb = (struct scsi_write_atomic_16 *)io->scsiio.cdb; 10752 10753 *lba = scsi_8btou64(cdb->addr); 10754 *len = scsi_2btoul(cdb->length); 10755 break; 10756 } 10757 case WRITE_VERIFY_16: { 10758 struct scsi_write_verify_16 *cdb; 10759 10760 cdb = (struct scsi_write_verify_16 *)io->scsiio.cdb; 10761 10762 *lba = scsi_8btou64(cdb->addr); 10763 *len = scsi_4btoul(cdb->length); 10764 break; 10765 } 10766 case WRITE_SAME_10: { 10767 struct scsi_write_same_10 *cdb; 10768 10769 cdb = (struct scsi_write_same_10 *)io->scsiio.cdb; 10770 10771 *lba = scsi_4btoul(cdb->addr); 10772 *len = scsi_2btoul(cdb->length); 10773 break; 10774 } 10775 case WRITE_SAME_16: { 10776 struct scsi_write_same_16 *cdb; 10777 10778 cdb = (struct scsi_write_same_16 *)io->scsiio.cdb; 10779 10780 *lba = scsi_8btou64(cdb->addr); 10781 *len = scsi_4btoul(cdb->length); 10782 break; 10783 } 10784 case VERIFY_10: { 10785 struct scsi_verify_10 *cdb; 10786 10787 cdb = (struct scsi_verify_10 *)io->scsiio.cdb; 10788 10789 *lba = scsi_4btoul(cdb->addr); 10790 *len = scsi_2btoul(cdb->length); 10791 break; 10792 } 10793 case VERIFY_12: { 10794 struct scsi_verify_12 *cdb; 10795 10796 cdb = (struct scsi_verify_12 *)io->scsiio.cdb; 10797 10798 *lba = scsi_4btoul(cdb->addr); 10799 *len = scsi_4btoul(cdb->length); 10800 break; 10801 } 10802 case VERIFY_16: { 10803 struct scsi_verify_16 *cdb; 10804 10805 cdb = (struct scsi_verify_16 *)io->scsiio.cdb; 10806 10807 *lba = scsi_8btou64(cdb->addr); 10808 *len = scsi_4btoul(cdb->length); 10809 break; 10810 } 10811 case UNMAP: { 10812 *lba = 0; 10813 *len = UINT64_MAX; 10814 break; 10815 } 10816 case SERVICE_ACTION_IN: { /* GET LBA STATUS */ 10817 struct scsi_get_lba_status *cdb; 10818 10819 cdb = (struct scsi_get_lba_status *)io->scsiio.cdb; 10820 *lba = scsi_8btou64(cdb->addr); 10821 *len = UINT32_MAX; 10822 break; 10823 } 10824 default: 10825 return (1); 10826 break; /* NOTREACHED */ 10827 } 10828 10829 return (0); 10830} 10831 10832static ctl_action 10833ctl_extent_check_lba(uint64_t lba1, uint64_t len1, uint64_t lba2, uint64_t len2, 10834 bool seq) 10835{ 10836 uint64_t endlba1, endlba2; 10837 10838 endlba1 = lba1 + len1 - (seq ? 0 : 1); 10839 endlba2 = lba2 + len2 - 1; 10840 10841 if ((endlba1 < lba2) || (endlba2 < lba1)) 10842 return (CTL_ACTION_PASS); 10843 else 10844 return (CTL_ACTION_BLOCK); 10845} 10846 10847static int 10848ctl_extent_check_unmap(union ctl_io *io, uint64_t lba2, uint64_t len2) 10849{ 10850 struct ctl_ptr_len_flags *ptrlen; 10851 struct scsi_unmap_desc *buf, *end, *range; 10852 uint64_t lba; 10853 uint32_t len; 10854 10855 /* If not UNMAP -- go other way. */ 10856 if (io->io_hdr.io_type != CTL_IO_SCSI || 10857 io->scsiio.cdb[0] != UNMAP) 10858 return (CTL_ACTION_ERROR); 10859 10860 /* If UNMAP without data -- block and wait for data. */ 10861 ptrlen = (struct ctl_ptr_len_flags *) 10862 &io->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 10863 if ((io->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0 || 10864 ptrlen->ptr == NULL) 10865 return (CTL_ACTION_BLOCK); 10866 10867 /* UNMAP with data -- check for collision. */ 10868 buf = (struct scsi_unmap_desc *)ptrlen->ptr; 10869 end = buf + ptrlen->len / sizeof(*buf); 10870 for (range = buf; range < end; range++) { 10871 lba = scsi_8btou64(range->lba); 10872 len = scsi_4btoul(range->length); 10873 if ((lba < lba2 + len2) && (lba + len > lba2)) 10874 return (CTL_ACTION_BLOCK); 10875 } 10876 return (CTL_ACTION_PASS); 10877} 10878 10879static ctl_action 10880ctl_extent_check(union ctl_io *io1, union ctl_io *io2, bool seq) 10881{ 10882 uint64_t lba1, lba2; 10883 uint64_t len1, len2; 10884 int retval; 10885 10886 if (ctl_get_lba_len(io2, &lba2, &len2) != 0) 10887 return (CTL_ACTION_ERROR); 10888 10889 retval = ctl_extent_check_unmap(io1, lba2, len2); 10890 if (retval != CTL_ACTION_ERROR) 10891 return (retval); 10892 10893 if (ctl_get_lba_len(io1, &lba1, &len1) != 0) 10894 return (CTL_ACTION_ERROR); 10895 10896 if (io1->io_hdr.flags & CTL_FLAG_SERSEQ_DONE) 10897 seq = FALSE; 10898 return (ctl_extent_check_lba(lba1, len1, lba2, len2, seq)); 10899} 10900 10901static ctl_action 10902ctl_extent_check_seq(union ctl_io *io1, union ctl_io *io2) 10903{ 10904 uint64_t lba1, lba2; 10905 uint64_t len1, len2; 10906 10907 if (io1->io_hdr.flags & CTL_FLAG_SERSEQ_DONE) 10908 return (CTL_ACTION_PASS); 10909 if (ctl_get_lba_len(io1, &lba1, &len1) != 0) 10910 return (CTL_ACTION_ERROR); 10911 if (ctl_get_lba_len(io2, &lba2, &len2) != 0) 10912 return (CTL_ACTION_ERROR); 10913 10914 if (lba1 + len1 == lba2) 10915 return (CTL_ACTION_BLOCK); 10916 return (CTL_ACTION_PASS); 10917} 10918 10919static ctl_action 10920ctl_check_for_blockage(struct ctl_lun *lun, union ctl_io *pending_io, 10921 union ctl_io *ooa_io) 10922{ 10923 const struct ctl_cmd_entry *pending_entry, *ooa_entry; 10924 const ctl_serialize_action *serialize_row; 10925 10926 /* 10927 * The initiator attempted multiple untagged commands at the same 10928 * time. Can't do that. 10929 */ 10930 if ((pending_io->scsiio.tag_type == CTL_TAG_UNTAGGED) 10931 && (ooa_io->scsiio.tag_type == CTL_TAG_UNTAGGED) 10932 && ((pending_io->io_hdr.nexus.targ_port == 10933 ooa_io->io_hdr.nexus.targ_port) 10934 && (pending_io->io_hdr.nexus.initid == 10935 ooa_io->io_hdr.nexus.initid)) 10936 && ((ooa_io->io_hdr.flags & (CTL_FLAG_ABORT | 10937 CTL_FLAG_STATUS_SENT)) == 0)) 10938 return (CTL_ACTION_OVERLAP); 10939 10940 /* 10941 * The initiator attempted to send multiple tagged commands with 10942 * the same ID. (It's fine if different initiators have the same 10943 * tag ID.) 10944 * 10945 * Even if all of those conditions are true, we don't kill the I/O 10946 * if the command ahead of us has been aborted. We won't end up 10947 * sending it to the FETD, and it's perfectly legal to resend a 10948 * command with the same tag number as long as the previous 10949 * instance of this tag number has been aborted somehow. 10950 */ 10951 if ((pending_io->scsiio.tag_type != CTL_TAG_UNTAGGED) 10952 && (ooa_io->scsiio.tag_type != CTL_TAG_UNTAGGED) 10953 && (pending_io->scsiio.tag_num == ooa_io->scsiio.tag_num) 10954 && ((pending_io->io_hdr.nexus.targ_port == 10955 ooa_io->io_hdr.nexus.targ_port) 10956 && (pending_io->io_hdr.nexus.initid == 10957 ooa_io->io_hdr.nexus.initid)) 10958 && ((ooa_io->io_hdr.flags & (CTL_FLAG_ABORT | 10959 CTL_FLAG_STATUS_SENT)) == 0)) 10960 return (CTL_ACTION_OVERLAP_TAG); 10961 10962 /* 10963 * If we get a head of queue tag, SAM-3 says that we should 10964 * immediately execute it. 10965 * 10966 * What happens if this command would normally block for some other 10967 * reason? e.g. a request sense with a head of queue tag 10968 * immediately after a write. Normally that would block, but this 10969 * will result in its getting executed immediately... 10970 * 10971 * We currently return "pass" instead of "skip", so we'll end up 10972 * going through the rest of the queue to check for overlapped tags. 10973 * 10974 * XXX KDM check for other types of blockage first?? 10975 */ 10976 if (pending_io->scsiio.tag_type == CTL_TAG_HEAD_OF_QUEUE) 10977 return (CTL_ACTION_PASS); 10978 10979 /* 10980 * Ordered tags have to block until all items ahead of them 10981 * have completed. If we get called with an ordered tag, we always 10982 * block, if something else is ahead of us in the queue. 10983 */ 10984 if (pending_io->scsiio.tag_type == CTL_TAG_ORDERED) 10985 return (CTL_ACTION_BLOCK); 10986 10987 /* 10988 * Simple tags get blocked until all head of queue and ordered tags 10989 * ahead of them have completed. I'm lumping untagged commands in 10990 * with simple tags here. XXX KDM is that the right thing to do? 10991 */ 10992 if (((pending_io->scsiio.tag_type == CTL_TAG_UNTAGGED) 10993 || (pending_io->scsiio.tag_type == CTL_TAG_SIMPLE)) 10994 && ((ooa_io->scsiio.tag_type == CTL_TAG_HEAD_OF_QUEUE) 10995 || (ooa_io->scsiio.tag_type == CTL_TAG_ORDERED))) 10996 return (CTL_ACTION_BLOCK); 10997 10998 pending_entry = ctl_get_cmd_entry(&pending_io->scsiio, NULL); 10999 KASSERT(pending_entry->seridx < CTL_SERIDX_COUNT, 11000 ("%s: Invalid seridx %d for pending CDB %02x %02x @ %p", 11001 __func__, pending_entry->seridx, pending_io->scsiio.cdb[0], 11002 pending_io->scsiio.cdb[1], pending_io)); 11003 ooa_entry = ctl_get_cmd_entry(&ooa_io->scsiio, NULL); 11004 if (ooa_entry->seridx == CTL_SERIDX_INVLD) 11005 return (CTL_ACTION_PASS); /* Unsupported command in OOA queue */ 11006 KASSERT(ooa_entry->seridx < CTL_SERIDX_COUNT, 11007 ("%s: Invalid seridx %d for ooa CDB %02x %02x @ %p", 11008 __func__, ooa_entry->seridx, ooa_io->scsiio.cdb[0], 11009 ooa_io->scsiio.cdb[1], ooa_io)); 11010 11011 serialize_row = ctl_serialize_table[ooa_entry->seridx]; 11012 11013 switch (serialize_row[pending_entry->seridx]) { 11014 case CTL_SER_BLOCK: 11015 return (CTL_ACTION_BLOCK); 11016 case CTL_SER_EXTENT: 11017 return (ctl_extent_check(ooa_io, pending_io, 11018 (lun->be_lun && lun->be_lun->serseq == CTL_LUN_SERSEQ_ON))); 11019 case CTL_SER_EXTENTOPT: 11020 if ((lun->MODE_CTRL.queue_flags & SCP_QUEUE_ALG_MASK) != 11021 SCP_QUEUE_ALG_UNRESTRICTED) 11022 return (ctl_extent_check(ooa_io, pending_io, 11023 (lun->be_lun && 11024 lun->be_lun->serseq == CTL_LUN_SERSEQ_ON))); 11025 return (CTL_ACTION_PASS); 11026 case CTL_SER_EXTENTSEQ: 11027 if (lun->be_lun && lun->be_lun->serseq != CTL_LUN_SERSEQ_OFF) 11028 return (ctl_extent_check_seq(ooa_io, pending_io)); 11029 return (CTL_ACTION_PASS); 11030 case CTL_SER_PASS: 11031 return (CTL_ACTION_PASS); 11032 case CTL_SER_BLOCKOPT: 11033 if ((lun->MODE_CTRL.queue_flags & SCP_QUEUE_ALG_MASK) != 11034 SCP_QUEUE_ALG_UNRESTRICTED) 11035 return (CTL_ACTION_BLOCK); 11036 return (CTL_ACTION_PASS); 11037 case CTL_SER_SKIP: 11038 return (CTL_ACTION_SKIP); 11039 default: 11040 panic("%s: Invalid serialization value %d for %d => %d", 11041 __func__, serialize_row[pending_entry->seridx], 11042 pending_entry->seridx, ooa_entry->seridx); 11043 } 11044 11045 return (CTL_ACTION_ERROR); 11046} 11047 11048/* 11049 * Check for blockage or overlaps against the OOA (Order Of Arrival) queue. 11050 * Assumptions: 11051 * - pending_io is generally either incoming, or on the blocked queue 11052 * - starting I/O is the I/O we want to start the check with. 11053 */ 11054static ctl_action 11055ctl_check_ooa(struct ctl_lun *lun, union ctl_io *pending_io, 11056 union ctl_io *starting_io) 11057{ 11058 union ctl_io *ooa_io; 11059 ctl_action action; 11060 11061 mtx_assert(&lun->lun_lock, MA_OWNED); 11062 11063 /* 11064 * Run back along the OOA queue, starting with the current 11065 * blocked I/O and going through every I/O before it on the 11066 * queue. If starting_io is NULL, we'll just end up returning 11067 * CTL_ACTION_PASS. 11068 */ 11069 for (ooa_io = starting_io; ooa_io != NULL; 11070 ooa_io = (union ctl_io *)TAILQ_PREV(&ooa_io->io_hdr, ctl_ooaq, 11071 ooa_links)){ 11072 11073 /* 11074 * This routine just checks to see whether 11075 * cur_blocked is blocked by ooa_io, which is ahead 11076 * of it in the queue. It doesn't queue/dequeue 11077 * cur_blocked. 11078 */ 11079 action = ctl_check_for_blockage(lun, pending_io, ooa_io); 11080 switch (action) { 11081 case CTL_ACTION_BLOCK: 11082 case CTL_ACTION_OVERLAP: 11083 case CTL_ACTION_OVERLAP_TAG: 11084 case CTL_ACTION_SKIP: 11085 case CTL_ACTION_ERROR: 11086 return (action); 11087 break; /* NOTREACHED */ 11088 case CTL_ACTION_PASS: 11089 break; 11090 default: 11091 panic("%s: Invalid action %d\n", __func__, action); 11092 } 11093 } 11094 11095 return (CTL_ACTION_PASS); 11096} 11097 11098/* 11099 * Assumptions: 11100 * - An I/O has just completed, and has been removed from the per-LUN OOA 11101 * queue, so some items on the blocked queue may now be unblocked. 11102 */ 11103static int 11104ctl_check_blocked(struct ctl_lun *lun) 11105{ 11106 struct ctl_softc *softc = lun->ctl_softc; 11107 union ctl_io *cur_blocked, *next_blocked; 11108 11109 mtx_assert(&lun->lun_lock, MA_OWNED); 11110 11111 /* 11112 * Run forward from the head of the blocked queue, checking each 11113 * entry against the I/Os prior to it on the OOA queue to see if 11114 * there is still any blockage. 11115 * 11116 * We cannot use the TAILQ_FOREACH() macro, because it can't deal 11117 * with our removing a variable on it while it is traversing the 11118 * list. 11119 */ 11120 for (cur_blocked = (union ctl_io *)TAILQ_FIRST(&lun->blocked_queue); 11121 cur_blocked != NULL; cur_blocked = next_blocked) { 11122 union ctl_io *prev_ooa; 11123 ctl_action action; 11124 11125 next_blocked = (union ctl_io *)TAILQ_NEXT(&cur_blocked->io_hdr, 11126 blocked_links); 11127 11128 prev_ooa = (union ctl_io *)TAILQ_PREV(&cur_blocked->io_hdr, 11129 ctl_ooaq, ooa_links); 11130 11131 /* 11132 * If cur_blocked happens to be the first item in the OOA 11133 * queue now, prev_ooa will be NULL, and the action 11134 * returned will just be CTL_ACTION_PASS. 11135 */ 11136 action = ctl_check_ooa(lun, cur_blocked, prev_ooa); 11137 11138 switch (action) { 11139 case CTL_ACTION_BLOCK: 11140 /* Nothing to do here, still blocked */ 11141 break; 11142 case CTL_ACTION_OVERLAP: 11143 case CTL_ACTION_OVERLAP_TAG: 11144 /* 11145 * This shouldn't happen! In theory we've already 11146 * checked this command for overlap... 11147 */ 11148 break; 11149 case CTL_ACTION_PASS: 11150 case CTL_ACTION_SKIP: { 11151 const struct ctl_cmd_entry *entry; 11152 11153 /* 11154 * The skip case shouldn't happen, this transaction 11155 * should have never made it onto the blocked queue. 11156 */ 11157 /* 11158 * This I/O is no longer blocked, we can remove it 11159 * from the blocked queue. Since this is a TAILQ 11160 * (doubly linked list), we can do O(1) removals 11161 * from any place on the list. 11162 */ 11163 TAILQ_REMOVE(&lun->blocked_queue, &cur_blocked->io_hdr, 11164 blocked_links); 11165 cur_blocked->io_hdr.flags &= ~CTL_FLAG_BLOCKED; 11166 11167 if ((softc->ha_mode != CTL_HA_MODE_XFER) && 11168 (cur_blocked->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)){ 11169 /* 11170 * Need to send IO back to original side to 11171 * run 11172 */ 11173 union ctl_ha_msg msg_info; 11174 11175 cur_blocked->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 11176 msg_info.hdr.original_sc = 11177 cur_blocked->io_hdr.original_sc; 11178 msg_info.hdr.serializing_sc = cur_blocked; 11179 msg_info.hdr.msg_type = CTL_MSG_R2R; 11180 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 11181 sizeof(msg_info.hdr), M_NOWAIT); 11182 break; 11183 } 11184 entry = ctl_get_cmd_entry(&cur_blocked->scsiio, NULL); 11185 11186 /* 11187 * Check this I/O for LUN state changes that may 11188 * have happened while this command was blocked. 11189 * The LUN state may have been changed by a command 11190 * ahead of us in the queue, so we need to re-check 11191 * for any states that can be caused by SCSI 11192 * commands. 11193 */ 11194 if (ctl_scsiio_lun_check(lun, entry, 11195 &cur_blocked->scsiio) == 0) { 11196 cur_blocked->io_hdr.flags |= 11197 CTL_FLAG_IS_WAS_ON_RTR; 11198 ctl_enqueue_rtr(cur_blocked); 11199 } else 11200 ctl_done(cur_blocked); 11201 break; 11202 } 11203 default: 11204 /* 11205 * This probably shouldn't happen -- we shouldn't 11206 * get CTL_ACTION_ERROR, or anything else. 11207 */ 11208 break; 11209 } 11210 } 11211 11212 return (CTL_RETVAL_COMPLETE); 11213} 11214 11215/* 11216 * This routine (with one exception) checks LUN flags that can be set by 11217 * commands ahead of us in the OOA queue. These flags have to be checked 11218 * when a command initially comes in, and when we pull a command off the 11219 * blocked queue and are preparing to execute it. The reason we have to 11220 * check these flags for commands on the blocked queue is that the LUN 11221 * state may have been changed by a command ahead of us while we're on the 11222 * blocked queue. 11223 * 11224 * Ordering is somewhat important with these checks, so please pay 11225 * careful attention to the placement of any new checks. 11226 */ 11227static int 11228ctl_scsiio_lun_check(struct ctl_lun *lun, 11229 const struct ctl_cmd_entry *entry, struct ctl_scsiio *ctsio) 11230{ 11231 struct ctl_softc *softc = lun->ctl_softc; 11232 int retval; 11233 uint32_t residx; 11234 11235 retval = 0; 11236 11237 mtx_assert(&lun->lun_lock, MA_OWNED); 11238 11239 /* 11240 * If this shelf is a secondary shelf controller, we may have to 11241 * reject some commands disallowed by HA mode and link state. 11242 */ 11243 if ((lun->flags & CTL_LUN_PRIMARY_SC) == 0) { 11244 if (softc->ha_link == CTL_HA_LINK_OFFLINE && 11245 (entry->flags & CTL_CMD_FLAG_OK_ON_UNAVAIL) == 0) { 11246 ctl_set_lun_unavail(ctsio); 11247 retval = 1; 11248 goto bailout; 11249 } 11250 if ((lun->flags & CTL_LUN_PEER_SC_PRIMARY) == 0 && 11251 (entry->flags & CTL_CMD_FLAG_OK_ON_UNAVAIL) == 0) { 11252 ctl_set_lun_transit(ctsio); 11253 retval = 1; 11254 goto bailout; 11255 } 11256 if (softc->ha_mode == CTL_HA_MODE_ACT_STBY && 11257 (entry->flags & CTL_CMD_FLAG_OK_ON_STANDBY) == 0) { 11258 ctl_set_lun_standby(ctsio); 11259 retval = 1; 11260 goto bailout; 11261 } 11262 11263 /* The rest of checks are only done on executing side */ 11264 if (softc->ha_mode == CTL_HA_MODE_XFER) 11265 goto bailout; 11266 } 11267 11268 if (entry->pattern & CTL_LUN_PAT_WRITE) { 11269 if (lun->be_lun && 11270 lun->be_lun->flags & CTL_LUN_FLAG_READONLY) { 11271 ctl_set_hw_write_protected(ctsio); 11272 retval = 1; 11273 goto bailout; 11274 } 11275 if ((lun->MODE_CTRL.eca_and_aen & SCP_SWP) != 0) { 11276 ctl_set_sense(ctsio, /*current_error*/ 1, 11277 /*sense_key*/ SSD_KEY_DATA_PROTECT, 11278 /*asc*/ 0x27, /*ascq*/ 0x02, SSD_ELEM_NONE); 11279 retval = 1; 11280 goto bailout; 11281 } 11282 } 11283 11284 /* 11285 * Check for a reservation conflict. If this command isn't allowed 11286 * even on reserved LUNs, and if this initiator isn't the one who 11287 * reserved us, reject the command with a reservation conflict. 11288 */ 11289 residx = ctl_get_initindex(&ctsio->io_hdr.nexus); 11290 if ((lun->flags & CTL_LUN_RESERVED) 11291 && ((entry->flags & CTL_CMD_FLAG_ALLOW_ON_RESV) == 0)) { 11292 if (lun->res_idx != residx) { 11293 ctl_set_reservation_conflict(ctsio); 11294 retval = 1; 11295 goto bailout; 11296 } 11297 } 11298 11299 if ((lun->flags & CTL_LUN_PR_RESERVED) == 0 || 11300 (entry->flags & CTL_CMD_FLAG_ALLOW_ON_PR_RESV)) { 11301 /* No reservation or command is allowed. */; 11302 } else if ((entry->flags & CTL_CMD_FLAG_ALLOW_ON_PR_WRESV) && 11303 (lun->pr_res_type == SPR_TYPE_WR_EX || 11304 lun->pr_res_type == SPR_TYPE_WR_EX_RO || 11305 lun->pr_res_type == SPR_TYPE_WR_EX_AR)) { 11306 /* The command is allowed for Write Exclusive resv. */; 11307 } else { 11308 /* 11309 * if we aren't registered or it's a res holder type 11310 * reservation and this isn't the res holder then set a 11311 * conflict. 11312 */ 11313 if (ctl_get_prkey(lun, residx) == 0 || 11314 (residx != lun->pr_res_idx && lun->pr_res_type < 4)) { 11315 ctl_set_reservation_conflict(ctsio); 11316 retval = 1; 11317 goto bailout; 11318 } 11319 } 11320 11321 if ((entry->flags & CTL_CMD_FLAG_OK_ON_NO_MEDIA) == 0) { 11322 if (lun->flags & CTL_LUN_EJECTED) 11323 ctl_set_lun_ejected(ctsio); 11324 else if (lun->flags & CTL_LUN_NO_MEDIA) { 11325 if (lun->flags & CTL_LUN_REMOVABLE) 11326 ctl_set_lun_no_media(ctsio); 11327 else 11328 ctl_set_lun_int_reqd(ctsio); 11329 } else if (lun->flags & CTL_LUN_STOPPED) 11330 ctl_set_lun_stopped(ctsio); 11331 else 11332 goto bailout; 11333 retval = 1; 11334 goto bailout; 11335 } 11336 11337bailout: 11338 return (retval); 11339} 11340 11341static void 11342ctl_failover_io(union ctl_io *io, int have_lock) 11343{ 11344 ctl_set_busy(&io->scsiio); 11345 ctl_done(io); 11346} 11347 11348static void 11349ctl_failover_lun(union ctl_io *rio) 11350{ 11351 struct ctl_softc *softc = CTL_SOFTC(rio); 11352 struct ctl_lun *lun; 11353 struct ctl_io_hdr *io, *next_io; 11354 uint32_t targ_lun; 11355 11356 targ_lun = rio->io_hdr.nexus.targ_mapped_lun; 11357 CTL_DEBUG_PRINT(("FAILOVER for lun %ju\n", targ_lun)); 11358 11359 /* Find and lock the LUN. */ 11360 mtx_lock(&softc->ctl_lock); 11361 if (targ_lun > CTL_MAX_LUNS || 11362 (lun = softc->ctl_luns[targ_lun]) == NULL) { 11363 mtx_unlock(&softc->ctl_lock); 11364 return; 11365 } 11366 mtx_lock(&lun->lun_lock); 11367 mtx_unlock(&softc->ctl_lock); 11368 if (lun->flags & CTL_LUN_DISABLED) { 11369 mtx_unlock(&lun->lun_lock); 11370 return; 11371 } 11372 11373 if (softc->ha_mode == CTL_HA_MODE_XFER) { 11374 TAILQ_FOREACH_SAFE(io, &lun->ooa_queue, ooa_links, next_io) { 11375 /* We are master */ 11376 if (io->flags & CTL_FLAG_FROM_OTHER_SC) { 11377 if (io->flags & CTL_FLAG_IO_ACTIVE) { 11378 io->flags |= CTL_FLAG_ABORT; 11379 io->flags |= CTL_FLAG_FAILOVER; 11380 } else { /* This can be only due to DATAMOVE */ 11381 io->msg_type = CTL_MSG_DATAMOVE_DONE; 11382 io->flags &= ~CTL_FLAG_DMA_INPROG; 11383 io->flags |= CTL_FLAG_IO_ACTIVE; 11384 io->port_status = 31340; 11385 ctl_enqueue_isc((union ctl_io *)io); 11386 } 11387 } 11388 /* We are slave */ 11389 if (io->flags & CTL_FLAG_SENT_2OTHER_SC) { 11390 io->flags &= ~CTL_FLAG_SENT_2OTHER_SC; 11391 if (io->flags & CTL_FLAG_IO_ACTIVE) { 11392 io->flags |= CTL_FLAG_FAILOVER; 11393 } else { 11394 ctl_set_busy(&((union ctl_io *)io)-> 11395 scsiio); 11396 ctl_done((union ctl_io *)io); 11397 } 11398 } 11399 } 11400 } else { /* SERIALIZE modes */ 11401 TAILQ_FOREACH_SAFE(io, &lun->blocked_queue, blocked_links, 11402 next_io) { 11403 /* We are master */ 11404 if (io->flags & CTL_FLAG_FROM_OTHER_SC) { 11405 TAILQ_REMOVE(&lun->blocked_queue, io, 11406 blocked_links); 11407 io->flags &= ~CTL_FLAG_BLOCKED; 11408 TAILQ_REMOVE(&lun->ooa_queue, io, ooa_links); 11409 ctl_free_io((union ctl_io *)io); 11410 } 11411 } 11412 TAILQ_FOREACH_SAFE(io, &lun->ooa_queue, ooa_links, next_io) { 11413 /* We are master */ 11414 if (io->flags & CTL_FLAG_FROM_OTHER_SC) { 11415 TAILQ_REMOVE(&lun->ooa_queue, io, ooa_links); 11416 ctl_free_io((union ctl_io *)io); 11417 } 11418 /* We are slave */ 11419 if (io->flags & CTL_FLAG_SENT_2OTHER_SC) { 11420 io->flags &= ~CTL_FLAG_SENT_2OTHER_SC; 11421 if (!(io->flags & CTL_FLAG_IO_ACTIVE)) { 11422 ctl_set_busy(&((union ctl_io *)io)-> 11423 scsiio); 11424 ctl_done((union ctl_io *)io); 11425 } 11426 } 11427 } 11428 ctl_check_blocked(lun); 11429 } 11430 mtx_unlock(&lun->lun_lock); 11431} 11432 11433static int 11434ctl_scsiio_precheck(struct ctl_softc *softc, struct ctl_scsiio *ctsio) 11435{ 11436 struct ctl_lun *lun; 11437 const struct ctl_cmd_entry *entry; 11438 uint32_t initidx, targ_lun; 11439 int retval = 0; 11440 11441 lun = NULL; 11442 targ_lun = ctsio->io_hdr.nexus.targ_mapped_lun; 11443 if (targ_lun < CTL_MAX_LUNS) 11444 lun = softc->ctl_luns[targ_lun]; 11445 if (lun) { 11446 /* 11447 * If the LUN is invalid, pretend that it doesn't exist. 11448 * It will go away as soon as all pending I/O has been 11449 * completed. 11450 */ 11451 mtx_lock(&lun->lun_lock); 11452 if (lun->flags & CTL_LUN_DISABLED) { 11453 mtx_unlock(&lun->lun_lock); 11454 lun = NULL; 11455 } 11456 } 11457 CTL_LUN(ctsio) = lun; 11458 if (lun) { 11459 CTL_BACKEND_LUN(ctsio) = lun->be_lun; 11460 11461 /* 11462 * Every I/O goes into the OOA queue for a particular LUN, 11463 * and stays there until completion. 11464 */ 11465#ifdef CTL_TIME_IO 11466 if (TAILQ_EMPTY(&lun->ooa_queue)) 11467 lun->idle_time += getsbinuptime() - lun->last_busy; 11468#endif 11469 TAILQ_INSERT_TAIL(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 11470 } 11471 11472 /* Get command entry and return error if it is unsuppotyed. */ 11473 entry = ctl_validate_command(ctsio); 11474 if (entry == NULL) { 11475 if (lun) 11476 mtx_unlock(&lun->lun_lock); 11477 return (retval); 11478 } 11479 11480 ctsio->io_hdr.flags &= ~CTL_FLAG_DATA_MASK; 11481 ctsio->io_hdr.flags |= entry->flags & CTL_FLAG_DATA_MASK; 11482 11483 /* 11484 * Check to see whether we can send this command to LUNs that don't 11485 * exist. This should pretty much only be the case for inquiry 11486 * and request sense. Further checks, below, really require having 11487 * a LUN, so we can't really check the command anymore. Just put 11488 * it on the rtr queue. 11489 */ 11490 if (lun == NULL) { 11491 if (entry->flags & CTL_CMD_FLAG_OK_ON_NO_LUN) { 11492 ctsio->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 11493 ctl_enqueue_rtr((union ctl_io *)ctsio); 11494 return (retval); 11495 } 11496 11497 ctl_set_unsupported_lun(ctsio); 11498 ctl_done((union ctl_io *)ctsio); 11499 CTL_DEBUG_PRINT(("ctl_scsiio_precheck: bailing out due to invalid LUN\n")); 11500 return (retval); 11501 } else { 11502 /* 11503 * Make sure we support this particular command on this LUN. 11504 * e.g., we don't support writes to the control LUN. 11505 */ 11506 if (!ctl_cmd_applicable(lun->be_lun->lun_type, entry)) { 11507 mtx_unlock(&lun->lun_lock); 11508 ctl_set_invalid_opcode(ctsio); 11509 ctl_done((union ctl_io *)ctsio); 11510 return (retval); 11511 } 11512 } 11513 11514 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 11515 11516#ifdef CTL_WITH_CA 11517 /* 11518 * If we've got a request sense, it'll clear the contingent 11519 * allegiance condition. Otherwise, if we have a CA condition for 11520 * this initiator, clear it, because it sent down a command other 11521 * than request sense. 11522 */ 11523 if ((ctsio->cdb[0] != REQUEST_SENSE) 11524 && (ctl_is_set(lun->have_ca, initidx))) 11525 ctl_clear_mask(lun->have_ca, initidx); 11526#endif 11527 11528 /* 11529 * If the command has this flag set, it handles its own unit 11530 * attention reporting, we shouldn't do anything. Otherwise we 11531 * check for any pending unit attentions, and send them back to the 11532 * initiator. We only do this when a command initially comes in, 11533 * not when we pull it off the blocked queue. 11534 * 11535 * According to SAM-3, section 5.3.2, the order that things get 11536 * presented back to the host is basically unit attentions caused 11537 * by some sort of reset event, busy status, reservation conflicts 11538 * or task set full, and finally any other status. 11539 * 11540 * One issue here is that some of the unit attentions we report 11541 * don't fall into the "reset" category (e.g. "reported luns data 11542 * has changed"). So reporting it here, before the reservation 11543 * check, may be technically wrong. I guess the only thing to do 11544 * would be to check for and report the reset events here, and then 11545 * check for the other unit attention types after we check for a 11546 * reservation conflict. 11547 * 11548 * XXX KDM need to fix this 11549 */ 11550 if ((entry->flags & CTL_CMD_FLAG_NO_SENSE) == 0) { 11551 ctl_ua_type ua_type; 11552 u_int sense_len = 0; 11553 11554 ua_type = ctl_build_ua(lun, initidx, &ctsio->sense_data, 11555 &sense_len, SSD_TYPE_NONE); 11556 if (ua_type != CTL_UA_NONE) { 11557 mtx_unlock(&lun->lun_lock); 11558 ctsio->scsi_status = SCSI_STATUS_CHECK_COND; 11559 ctsio->io_hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 11560 ctsio->sense_len = sense_len; 11561 ctl_done((union ctl_io *)ctsio); 11562 return (retval); 11563 } 11564 } 11565 11566 11567 if (ctl_scsiio_lun_check(lun, entry, ctsio) != 0) { 11568 mtx_unlock(&lun->lun_lock); 11569 ctl_done((union ctl_io *)ctsio); 11570 return (retval); 11571 } 11572 11573 /* 11574 * XXX CHD this is where we want to send IO to other side if 11575 * this LUN is secondary on this SC. We will need to make a copy 11576 * of the IO and flag the IO on this side as SENT_2OTHER and the flag 11577 * the copy we send as FROM_OTHER. 11578 * We also need to stuff the address of the original IO so we can 11579 * find it easily. Something similar will need be done on the other 11580 * side so when we are done we can find the copy. 11581 */ 11582 if ((lun->flags & CTL_LUN_PRIMARY_SC) == 0 && 11583 (lun->flags & CTL_LUN_PEER_SC_PRIMARY) != 0 && 11584 (entry->flags & CTL_CMD_FLAG_RUN_HERE) == 0) { 11585 union ctl_ha_msg msg_info; 11586 int isc_retval; 11587 11588 ctsio->io_hdr.flags |= CTL_FLAG_SENT_2OTHER_SC; 11589 ctsio->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 11590 mtx_unlock(&lun->lun_lock); 11591 11592 msg_info.hdr.msg_type = CTL_MSG_SERIALIZE; 11593 msg_info.hdr.original_sc = (union ctl_io *)ctsio; 11594 msg_info.hdr.serializing_sc = NULL; 11595 msg_info.hdr.nexus = ctsio->io_hdr.nexus; 11596 msg_info.scsi.tag_num = ctsio->tag_num; 11597 msg_info.scsi.tag_type = ctsio->tag_type; 11598 msg_info.scsi.cdb_len = ctsio->cdb_len; 11599 memcpy(msg_info.scsi.cdb, ctsio->cdb, CTL_MAX_CDBLEN); 11600 11601 if ((isc_retval = ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 11602 sizeof(msg_info.scsi) - sizeof(msg_info.scsi.sense_data), 11603 M_WAITOK)) > CTL_HA_STATUS_SUCCESS) { 11604 ctl_set_busy(ctsio); 11605 ctl_done((union ctl_io *)ctsio); 11606 return (retval); 11607 } 11608 return (retval); 11609 } 11610 11611 switch (ctl_check_ooa(lun, (union ctl_io *)ctsio, 11612 (union ctl_io *)TAILQ_PREV(&ctsio->io_hdr, 11613 ctl_ooaq, ooa_links))) { 11614 case CTL_ACTION_BLOCK: 11615 ctsio->io_hdr.flags |= CTL_FLAG_BLOCKED; 11616 TAILQ_INSERT_TAIL(&lun->blocked_queue, &ctsio->io_hdr, 11617 blocked_links); 11618 mtx_unlock(&lun->lun_lock); 11619 return (retval); 11620 case CTL_ACTION_PASS: 11621 case CTL_ACTION_SKIP: 11622 ctsio->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 11623 mtx_unlock(&lun->lun_lock); 11624 ctl_enqueue_rtr((union ctl_io *)ctsio); 11625 break; 11626 case CTL_ACTION_OVERLAP: 11627 mtx_unlock(&lun->lun_lock); 11628 ctl_set_overlapped_cmd(ctsio); 11629 ctl_done((union ctl_io *)ctsio); 11630 break; 11631 case CTL_ACTION_OVERLAP_TAG: 11632 mtx_unlock(&lun->lun_lock); 11633 ctl_set_overlapped_tag(ctsio, ctsio->tag_num & 0xff); 11634 ctl_done((union ctl_io *)ctsio); 11635 break; 11636 case CTL_ACTION_ERROR: 11637 default: 11638 mtx_unlock(&lun->lun_lock); 11639 ctl_set_internal_failure(ctsio, 11640 /*sks_valid*/ 0, 11641 /*retry_count*/ 0); 11642 ctl_done((union ctl_io *)ctsio); 11643 break; 11644 } 11645 return (retval); 11646} 11647 11648const struct ctl_cmd_entry * 11649ctl_get_cmd_entry(struct ctl_scsiio *ctsio, int *sa) 11650{ 11651 const struct ctl_cmd_entry *entry; 11652 int service_action; 11653 11654 entry = &ctl_cmd_table[ctsio->cdb[0]]; 11655 if (sa) 11656 *sa = ((entry->flags & CTL_CMD_FLAG_SA5) != 0); 11657 if (entry->flags & CTL_CMD_FLAG_SA5) { 11658 service_action = ctsio->cdb[1] & SERVICE_ACTION_MASK; 11659 entry = &((const struct ctl_cmd_entry *) 11660 entry->execute)[service_action]; 11661 } 11662 return (entry); 11663} 11664 11665const struct ctl_cmd_entry * 11666ctl_validate_command(struct ctl_scsiio *ctsio) 11667{ 11668 const struct ctl_cmd_entry *entry; 11669 int i, sa; 11670 uint8_t diff; 11671 11672 entry = ctl_get_cmd_entry(ctsio, &sa); 11673 if (entry->execute == NULL) { 11674 if (sa) 11675 ctl_set_invalid_field(ctsio, 11676 /*sks_valid*/ 1, 11677 /*command*/ 1, 11678 /*field*/ 1, 11679 /*bit_valid*/ 1, 11680 /*bit*/ 4); 11681 else 11682 ctl_set_invalid_opcode(ctsio); 11683 ctl_done((union ctl_io *)ctsio); 11684 return (NULL); 11685 } 11686 KASSERT(entry->length > 0, 11687 ("Not defined length for command 0x%02x/0x%02x", 11688 ctsio->cdb[0], ctsio->cdb[1])); 11689 for (i = 1; i < entry->length; i++) { 11690 diff = ctsio->cdb[i] & ~entry->usage[i - 1]; 11691 if (diff == 0) 11692 continue; 11693 ctl_set_invalid_field(ctsio, 11694 /*sks_valid*/ 1, 11695 /*command*/ 1, 11696 /*field*/ i, 11697 /*bit_valid*/ 1, 11698 /*bit*/ fls(diff) - 1); 11699 ctl_done((union ctl_io *)ctsio); 11700 return (NULL); 11701 } 11702 return (entry); 11703} 11704 11705static int 11706ctl_cmd_applicable(uint8_t lun_type, const struct ctl_cmd_entry *entry) 11707{ 11708 11709 switch (lun_type) { 11710 case T_DIRECT: 11711 if ((entry->flags & CTL_CMD_FLAG_OK_ON_DIRECT) == 0) 11712 return (0); 11713 break; 11714 case T_PROCESSOR: 11715 if ((entry->flags & CTL_CMD_FLAG_OK_ON_PROC) == 0) 11716 return (0); 11717 break; 11718 case T_CDROM: 11719 if ((entry->flags & CTL_CMD_FLAG_OK_ON_CDROM) == 0) 11720 return (0); 11721 break; 11722 default: 11723 return (0); 11724 } 11725 return (1); 11726} 11727 11728static int 11729ctl_scsiio(struct ctl_scsiio *ctsio) 11730{ 11731 int retval; 11732 const struct ctl_cmd_entry *entry; 11733 11734 retval = CTL_RETVAL_COMPLETE; 11735 11736 CTL_DEBUG_PRINT(("ctl_scsiio cdb[0]=%02X\n", ctsio->cdb[0])); 11737 11738 entry = ctl_get_cmd_entry(ctsio, NULL); 11739 11740 /* 11741 * If this I/O has been aborted, just send it straight to 11742 * ctl_done() without executing it. 11743 */ 11744 if (ctsio->io_hdr.flags & CTL_FLAG_ABORT) { 11745 ctl_done((union ctl_io *)ctsio); 11746 goto bailout; 11747 } 11748 11749 /* 11750 * All the checks should have been handled by ctl_scsiio_precheck(). 11751 * We should be clear now to just execute the I/O. 11752 */ 11753 retval = entry->execute(ctsio); 11754 11755bailout: 11756 return (retval); 11757} 11758 11759/* 11760 * Since we only implement one target right now, a bus reset simply resets 11761 * our single target. 11762 */ 11763static int 11764ctl_bus_reset(struct ctl_softc *softc, union ctl_io *io) 11765{ 11766 return(ctl_target_reset(softc, io, CTL_UA_BUS_RESET)); 11767} 11768 11769static int 11770ctl_target_reset(struct ctl_softc *softc, union ctl_io *io, 11771 ctl_ua_type ua_type) 11772{ 11773 struct ctl_port *port = CTL_PORT(io); 11774 struct ctl_lun *lun; 11775 int retval; 11776 11777 if (!(io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)) { 11778 union ctl_ha_msg msg_info; 11779 11780 msg_info.hdr.nexus = io->io_hdr.nexus; 11781 if (ua_type==CTL_UA_TARG_RESET) 11782 msg_info.task.task_action = CTL_TASK_TARGET_RESET; 11783 else 11784 msg_info.task.task_action = CTL_TASK_BUS_RESET; 11785 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 11786 msg_info.hdr.original_sc = NULL; 11787 msg_info.hdr.serializing_sc = NULL; 11788 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 11789 sizeof(msg_info.task), M_WAITOK); 11790 } 11791 retval = 0; 11792 11793 mtx_lock(&softc->ctl_lock); 11794 STAILQ_FOREACH(lun, &softc->lun_list, links) { 11795 if (port != NULL && 11796 ctl_lun_map_to_port(port, lun->lun) == UINT32_MAX) 11797 continue; 11798 retval += ctl_do_lun_reset(lun, io, ua_type); 11799 } 11800 mtx_unlock(&softc->ctl_lock); 11801 io->taskio.task_status = CTL_TASK_FUNCTION_COMPLETE; 11802 return (retval); 11803} 11804 11805/* 11806 * The LUN should always be set. The I/O is optional, and is used to 11807 * distinguish between I/Os sent by this initiator, and by other 11808 * initiators. We set unit attention for initiators other than this one. 11809 * SAM-3 is vague on this point. It does say that a unit attention should 11810 * be established for other initiators when a LUN is reset (see section 11811 * 5.7.3), but it doesn't specifically say that the unit attention should 11812 * be established for this particular initiator when a LUN is reset. Here 11813 * is the relevant text, from SAM-3 rev 8: 11814 * 11815 * 5.7.2 When a SCSI initiator port aborts its own tasks 11816 * 11817 * When a SCSI initiator port causes its own task(s) to be aborted, no 11818 * notification that the task(s) have been aborted shall be returned to 11819 * the SCSI initiator port other than the completion response for the 11820 * command or task management function action that caused the task(s) to 11821 * be aborted and notification(s) associated with related effects of the 11822 * action (e.g., a reset unit attention condition). 11823 * 11824 * XXX KDM for now, we're setting unit attention for all initiators. 11825 */ 11826static int 11827ctl_do_lun_reset(struct ctl_lun *lun, union ctl_io *io, ctl_ua_type ua_type) 11828{ 11829 union ctl_io *xio; 11830#if 0 11831 uint32_t initidx; 11832#endif 11833 int i; 11834 11835 mtx_lock(&lun->lun_lock); 11836 /* 11837 * Run through the OOA queue and abort each I/O. 11838 */ 11839 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 11840 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 11841 xio->io_hdr.flags |= CTL_FLAG_ABORT | CTL_FLAG_ABORT_STATUS; 11842 } 11843 11844 /* 11845 * This version sets unit attention for every 11846 */ 11847#if 0 11848 initidx = ctl_get_initindex(&io->io_hdr.nexus); 11849 ctl_est_ua_all(lun, initidx, ua_type); 11850#else 11851 ctl_est_ua_all(lun, -1, ua_type); 11852#endif 11853 11854 /* 11855 * A reset (any kind, really) clears reservations established with 11856 * RESERVE/RELEASE. It does not clear reservations established 11857 * with PERSISTENT RESERVE OUT, but we don't support that at the 11858 * moment anyway. See SPC-2, section 5.6. SPC-3 doesn't address 11859 * reservations made with the RESERVE/RELEASE commands, because 11860 * those commands are obsolete in SPC-3. 11861 */ 11862 lun->flags &= ~CTL_LUN_RESERVED; 11863 11864#ifdef CTL_WITH_CA 11865 for (i = 0; i < CTL_MAX_INITIATORS; i++) 11866 ctl_clear_mask(lun->have_ca, i); 11867#endif 11868 lun->prevent_count = 0; 11869 for (i = 0; i < CTL_MAX_INITIATORS; i++) 11870 ctl_clear_mask(lun->prevent, i); 11871 mtx_unlock(&lun->lun_lock); 11872 11873 return (0); 11874} 11875 11876static int 11877ctl_lun_reset(struct ctl_softc *softc, union ctl_io *io) 11878{ 11879 struct ctl_lun *lun; 11880 uint32_t targ_lun; 11881 int retval; 11882 11883 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 11884 mtx_lock(&softc->ctl_lock); 11885 if (targ_lun >= CTL_MAX_LUNS || 11886 (lun = softc->ctl_luns[targ_lun]) == NULL) { 11887 mtx_unlock(&softc->ctl_lock); 11888 io->taskio.task_status = CTL_TASK_LUN_DOES_NOT_EXIST; 11889 return (1); 11890 } 11891 retval = ctl_do_lun_reset(lun, io, CTL_UA_LUN_RESET); 11892 mtx_unlock(&softc->ctl_lock); 11893 io->taskio.task_status = CTL_TASK_FUNCTION_COMPLETE; 11894 11895 if ((io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) == 0) { 11896 union ctl_ha_msg msg_info; 11897 11898 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 11899 msg_info.hdr.nexus = io->io_hdr.nexus; 11900 msg_info.task.task_action = CTL_TASK_LUN_RESET; 11901 msg_info.hdr.original_sc = NULL; 11902 msg_info.hdr.serializing_sc = NULL; 11903 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 11904 sizeof(msg_info.task), M_WAITOK); 11905 } 11906 return (retval); 11907} 11908 11909static void 11910ctl_abort_tasks_lun(struct ctl_lun *lun, uint32_t targ_port, uint32_t init_id, 11911 int other_sc) 11912{ 11913 union ctl_io *xio; 11914 11915 mtx_assert(&lun->lun_lock, MA_OWNED); 11916 11917 /* 11918 * Run through the OOA queue and attempt to find the given I/O. 11919 * The target port, initiator ID, tag type and tag number have to 11920 * match the values that we got from the initiator. If we have an 11921 * untagged command to abort, simply abort the first untagged command 11922 * we come to. We only allow one untagged command at a time of course. 11923 */ 11924 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 11925 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 11926 11927 if ((targ_port == UINT32_MAX || 11928 targ_port == xio->io_hdr.nexus.targ_port) && 11929 (init_id == UINT32_MAX || 11930 init_id == xio->io_hdr.nexus.initid)) { 11931 if (targ_port != xio->io_hdr.nexus.targ_port || 11932 init_id != xio->io_hdr.nexus.initid) 11933 xio->io_hdr.flags |= CTL_FLAG_ABORT_STATUS; 11934 xio->io_hdr.flags |= CTL_FLAG_ABORT; 11935 if (!other_sc && !(lun->flags & CTL_LUN_PRIMARY_SC)) { 11936 union ctl_ha_msg msg_info; 11937 11938 msg_info.hdr.nexus = xio->io_hdr.nexus; 11939 msg_info.task.task_action = CTL_TASK_ABORT_TASK; 11940 msg_info.task.tag_num = xio->scsiio.tag_num; 11941 msg_info.task.tag_type = xio->scsiio.tag_type; 11942 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 11943 msg_info.hdr.original_sc = NULL; 11944 msg_info.hdr.serializing_sc = NULL; 11945 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 11946 sizeof(msg_info.task), M_NOWAIT); 11947 } 11948 } 11949 } 11950} 11951 11952static int 11953ctl_abort_task_set(union ctl_io *io) 11954{ 11955 struct ctl_softc *softc = CTL_SOFTC(io); 11956 struct ctl_lun *lun; 11957 uint32_t targ_lun; 11958 11959 /* 11960 * Look up the LUN. 11961 */ 11962 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 11963 mtx_lock(&softc->ctl_lock); 11964 if (targ_lun >= CTL_MAX_LUNS || 11965 (lun = softc->ctl_luns[targ_lun]) == NULL) { 11966 mtx_unlock(&softc->ctl_lock); 11967 io->taskio.task_status = CTL_TASK_LUN_DOES_NOT_EXIST; 11968 return (1); 11969 } 11970 11971 mtx_lock(&lun->lun_lock); 11972 mtx_unlock(&softc->ctl_lock); 11973 if (io->taskio.task_action == CTL_TASK_ABORT_TASK_SET) { 11974 ctl_abort_tasks_lun(lun, io->io_hdr.nexus.targ_port, 11975 io->io_hdr.nexus.initid, 11976 (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) != 0); 11977 } else { /* CTL_TASK_CLEAR_TASK_SET */ 11978 ctl_abort_tasks_lun(lun, UINT32_MAX, UINT32_MAX, 11979 (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) != 0); 11980 } 11981 mtx_unlock(&lun->lun_lock); 11982 io->taskio.task_status = CTL_TASK_FUNCTION_COMPLETE; 11983 return (0); 11984} 11985 11986static int 11987ctl_i_t_nexus_reset(union ctl_io *io) 11988{ 11989 struct ctl_softc *softc = CTL_SOFTC(io); 11990 struct ctl_lun *lun; 11991 uint32_t initidx; 11992 11993 if (!(io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)) { 11994 union ctl_ha_msg msg_info; 11995 11996 msg_info.hdr.nexus = io->io_hdr.nexus; 11997 msg_info.task.task_action = CTL_TASK_I_T_NEXUS_RESET; 11998 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 11999 msg_info.hdr.original_sc = NULL; 12000 msg_info.hdr.serializing_sc = NULL; 12001 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 12002 sizeof(msg_info.task), M_WAITOK); 12003 } 12004 12005 initidx = ctl_get_initindex(&io->io_hdr.nexus); 12006 mtx_lock(&softc->ctl_lock); 12007 STAILQ_FOREACH(lun, &softc->lun_list, links) { 12008 mtx_lock(&lun->lun_lock); 12009 ctl_abort_tasks_lun(lun, io->io_hdr.nexus.targ_port, 12010 io->io_hdr.nexus.initid, 1); 12011#ifdef CTL_WITH_CA 12012 ctl_clear_mask(lun->have_ca, initidx); 12013#endif 12014 if ((lun->flags & CTL_LUN_RESERVED) && (lun->res_idx == initidx)) 12015 lun->flags &= ~CTL_LUN_RESERVED; 12016 if (ctl_is_set(lun->prevent, initidx)) { 12017 ctl_clear_mask(lun->prevent, initidx); 12018 lun->prevent_count--; 12019 } 12020 ctl_est_ua(lun, initidx, CTL_UA_I_T_NEXUS_LOSS); 12021 mtx_unlock(&lun->lun_lock); 12022 } 12023 mtx_unlock(&softc->ctl_lock); 12024 io->taskio.task_status = CTL_TASK_FUNCTION_COMPLETE; 12025 return (0); 12026} 12027 12028static int 12029ctl_abort_task(union ctl_io *io) 12030{ 12031 struct ctl_softc *softc = CTL_SOFTC(io); 12032 union ctl_io *xio; 12033 struct ctl_lun *lun; 12034#if 0 12035 struct sbuf sb; 12036 char printbuf[128]; 12037#endif 12038 int found; 12039 uint32_t targ_lun; 12040 12041 found = 0; 12042 12043 /* 12044 * Look up the LUN. 12045 */ 12046 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12047 mtx_lock(&softc->ctl_lock); 12048 if (targ_lun >= CTL_MAX_LUNS || 12049 (lun = softc->ctl_luns[targ_lun]) == NULL) { 12050 mtx_unlock(&softc->ctl_lock); 12051 io->taskio.task_status = CTL_TASK_LUN_DOES_NOT_EXIST; 12052 return (1); 12053 } 12054 12055#if 0 12056 printf("ctl_abort_task: called for lun %lld, tag %d type %d\n", 12057 lun->lun, io->taskio.tag_num, io->taskio.tag_type); 12058#endif 12059 12060 mtx_lock(&lun->lun_lock); 12061 mtx_unlock(&softc->ctl_lock); 12062 /* 12063 * Run through the OOA queue and attempt to find the given I/O. 12064 * The target port, initiator ID, tag type and tag number have to 12065 * match the values that we got from the initiator. If we have an 12066 * untagged command to abort, simply abort the first untagged command 12067 * we come to. We only allow one untagged command at a time of course. 12068 */ 12069 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 12070 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 12071#if 0 12072 sbuf_new(&sb, printbuf, sizeof(printbuf), SBUF_FIXEDLEN); 12073 12074 sbuf_printf(&sb, "LUN %lld tag %d type %d%s%s%s%s: ", 12075 lun->lun, xio->scsiio.tag_num, 12076 xio->scsiio.tag_type, 12077 (xio->io_hdr.blocked_links.tqe_prev 12078 == NULL) ? "" : " BLOCKED", 12079 (xio->io_hdr.flags & 12080 CTL_FLAG_DMA_INPROG) ? " DMA" : "", 12081 (xio->io_hdr.flags & 12082 CTL_FLAG_ABORT) ? " ABORT" : "", 12083 (xio->io_hdr.flags & 12084 CTL_FLAG_IS_WAS_ON_RTR ? " RTR" : "")); 12085 ctl_scsi_command_string(&xio->scsiio, NULL, &sb); 12086 sbuf_finish(&sb); 12087 printf("%s\n", sbuf_data(&sb)); 12088#endif 12089 12090 if ((xio->io_hdr.nexus.targ_port != io->io_hdr.nexus.targ_port) 12091 || (xio->io_hdr.nexus.initid != io->io_hdr.nexus.initid) 12092 || (xio->io_hdr.flags & CTL_FLAG_ABORT)) 12093 continue; 12094 12095 /* 12096 * If the abort says that the task is untagged, the 12097 * task in the queue must be untagged. Otherwise, 12098 * we just check to see whether the tag numbers 12099 * match. This is because the QLogic firmware 12100 * doesn't pass back the tag type in an abort 12101 * request. 12102 */ 12103#if 0 12104 if (((xio->scsiio.tag_type == CTL_TAG_UNTAGGED) 12105 && (io->taskio.tag_type == CTL_TAG_UNTAGGED)) 12106 || (xio->scsiio.tag_num == io->taskio.tag_num)) 12107#endif 12108 /* 12109 * XXX KDM we've got problems with FC, because it 12110 * doesn't send down a tag type with aborts. So we 12111 * can only really go by the tag number... 12112 * This may cause problems with parallel SCSI. 12113 * Need to figure that out!! 12114 */ 12115 if (xio->scsiio.tag_num == io->taskio.tag_num) { 12116 xio->io_hdr.flags |= CTL_FLAG_ABORT; 12117 found = 1; 12118 if ((io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) == 0 && 12119 !(lun->flags & CTL_LUN_PRIMARY_SC)) { 12120 union ctl_ha_msg msg_info; 12121 12122 msg_info.hdr.nexus = io->io_hdr.nexus; 12123 msg_info.task.task_action = CTL_TASK_ABORT_TASK; 12124 msg_info.task.tag_num = io->taskio.tag_num; 12125 msg_info.task.tag_type = io->taskio.tag_type; 12126 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 12127 msg_info.hdr.original_sc = NULL; 12128 msg_info.hdr.serializing_sc = NULL; 12129#if 0 12130 printf("Sent Abort to other side\n"); 12131#endif 12132 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 12133 sizeof(msg_info.task), M_NOWAIT); 12134 } 12135#if 0 12136 printf("ctl_abort_task: found I/O to abort\n"); 12137#endif 12138 } 12139 } 12140 mtx_unlock(&lun->lun_lock); 12141 12142 if (found == 0) { 12143 /* 12144 * This isn't really an error. It's entirely possible for 12145 * the abort and command completion to cross on the wire. 12146 * This is more of an informative/diagnostic error. 12147 */ 12148#if 0 12149 printf("ctl_abort_task: ABORT sent for nonexistent I/O: " 12150 "%u:%u:%u tag %d type %d\n", 12151 io->io_hdr.nexus.initid, 12152 io->io_hdr.nexus.targ_port, 12153 io->io_hdr.nexus.targ_lun, io->taskio.tag_num, 12154 io->taskio.tag_type); 12155#endif 12156 } 12157 io->taskio.task_status = CTL_TASK_FUNCTION_COMPLETE; 12158 return (0); 12159} 12160 12161static int 12162ctl_query_task(union ctl_io *io, int task_set) 12163{ 12164 struct ctl_softc *softc = CTL_SOFTC(io); 12165 union ctl_io *xio; 12166 struct ctl_lun *lun; 12167 int found = 0; 12168 uint32_t targ_lun; 12169 12170 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12171 mtx_lock(&softc->ctl_lock); 12172 if (targ_lun >= CTL_MAX_LUNS || 12173 (lun = softc->ctl_luns[targ_lun]) == NULL) { 12174 mtx_unlock(&softc->ctl_lock); 12175 io->taskio.task_status = CTL_TASK_LUN_DOES_NOT_EXIST; 12176 return (1); 12177 } 12178 mtx_lock(&lun->lun_lock); 12179 mtx_unlock(&softc->ctl_lock); 12180 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 12181 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 12182 12183 if ((xio->io_hdr.nexus.targ_port != io->io_hdr.nexus.targ_port) 12184 || (xio->io_hdr.nexus.initid != io->io_hdr.nexus.initid) 12185 || (xio->io_hdr.flags & CTL_FLAG_ABORT)) 12186 continue; 12187 12188 if (task_set || xio->scsiio.tag_num == io->taskio.tag_num) { 12189 found = 1; 12190 break; 12191 } 12192 } 12193 mtx_unlock(&lun->lun_lock); 12194 if (found) 12195 io->taskio.task_status = CTL_TASK_FUNCTION_SUCCEEDED; 12196 else 12197 io->taskio.task_status = CTL_TASK_FUNCTION_COMPLETE; 12198 return (0); 12199} 12200 12201static int 12202ctl_query_async_event(union ctl_io *io) 12203{ 12204 struct ctl_softc *softc = CTL_SOFTC(io); 12205 struct ctl_lun *lun; 12206 ctl_ua_type ua; 12207 uint32_t targ_lun, initidx; 12208 12209 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12210 mtx_lock(&softc->ctl_lock); 12211 if (targ_lun >= CTL_MAX_LUNS || 12212 (lun = softc->ctl_luns[targ_lun]) == NULL) { 12213 mtx_unlock(&softc->ctl_lock); 12214 io->taskio.task_status = CTL_TASK_LUN_DOES_NOT_EXIST; 12215 return (1); 12216 } 12217 mtx_lock(&lun->lun_lock); 12218 mtx_unlock(&softc->ctl_lock); 12219 initidx = ctl_get_initindex(&io->io_hdr.nexus); 12220 ua = ctl_build_qae(lun, initidx, io->taskio.task_resp); 12221 mtx_unlock(&lun->lun_lock); 12222 if (ua != CTL_UA_NONE) 12223 io->taskio.task_status = CTL_TASK_FUNCTION_SUCCEEDED; 12224 else 12225 io->taskio.task_status = CTL_TASK_FUNCTION_COMPLETE; 12226 return (0); 12227} 12228 12229static void 12230ctl_run_task(union ctl_io *io) 12231{ 12232 struct ctl_softc *softc = CTL_SOFTC(io); 12233 int retval = 1; 12234 12235 CTL_DEBUG_PRINT(("ctl_run_task\n")); 12236 KASSERT(io->io_hdr.io_type == CTL_IO_TASK, 12237 ("ctl_run_task: Unextected io_type %d\n", io->io_hdr.io_type)); 12238 io->taskio.task_status = CTL_TASK_FUNCTION_NOT_SUPPORTED; 12239 bzero(io->taskio.task_resp, sizeof(io->taskio.task_resp)); 12240 switch (io->taskio.task_action) { 12241 case CTL_TASK_ABORT_TASK: 12242 retval = ctl_abort_task(io); 12243 break; 12244 case CTL_TASK_ABORT_TASK_SET: 12245 case CTL_TASK_CLEAR_TASK_SET: 12246 retval = ctl_abort_task_set(io); 12247 break; 12248 case CTL_TASK_CLEAR_ACA: 12249 break; 12250 case CTL_TASK_I_T_NEXUS_RESET: 12251 retval = ctl_i_t_nexus_reset(io); 12252 break; 12253 case CTL_TASK_LUN_RESET: 12254 retval = ctl_lun_reset(softc, io); 12255 break; 12256 case CTL_TASK_TARGET_RESET: 12257 retval = ctl_target_reset(softc, io, CTL_UA_TARG_RESET); 12258 break; 12259 case CTL_TASK_BUS_RESET: 12260 retval = ctl_bus_reset(softc, io); 12261 break; 12262 case CTL_TASK_PORT_LOGIN: 12263 break; 12264 case CTL_TASK_PORT_LOGOUT: 12265 break; 12266 case CTL_TASK_QUERY_TASK: 12267 retval = ctl_query_task(io, 0); 12268 break; 12269 case CTL_TASK_QUERY_TASK_SET: 12270 retval = ctl_query_task(io, 1); 12271 break; 12272 case CTL_TASK_QUERY_ASYNC_EVENT: 12273 retval = ctl_query_async_event(io); 12274 break; 12275 default: 12276 printf("%s: got unknown task management event %d\n", 12277 __func__, io->taskio.task_action); 12278 break; 12279 } 12280 if (retval == 0) 12281 io->io_hdr.status = CTL_SUCCESS; 12282 else 12283 io->io_hdr.status = CTL_ERROR; 12284 ctl_done(io); 12285} 12286 12287/* 12288 * For HA operation. Handle commands that come in from the other 12289 * controller. 12290 */ 12291static void 12292ctl_handle_isc(union ctl_io *io) 12293{ 12294 struct ctl_softc *softc = CTL_SOFTC(io); 12295 struct ctl_lun *lun; 12296 const struct ctl_cmd_entry *entry; 12297 uint32_t targ_lun; 12298 12299 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12300 switch (io->io_hdr.msg_type) { 12301 case CTL_MSG_SERIALIZE: 12302 ctl_serialize_other_sc_cmd(&io->scsiio); 12303 break; 12304 case CTL_MSG_R2R: /* Only used in SER_ONLY mode. */ 12305 entry = ctl_get_cmd_entry(&io->scsiio, NULL); 12306 if (targ_lun >= CTL_MAX_LUNS || 12307 (lun = softc->ctl_luns[targ_lun]) == NULL) { 12308 ctl_done(io); 12309 break; 12310 } 12311 mtx_lock(&lun->lun_lock); 12312 if (ctl_scsiio_lun_check(lun, entry, &io->scsiio) != 0) { 12313 mtx_unlock(&lun->lun_lock); 12314 ctl_done(io); 12315 break; 12316 } 12317 io->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 12318 mtx_unlock(&lun->lun_lock); 12319 ctl_enqueue_rtr(io); 12320 break; 12321 case CTL_MSG_FINISH_IO: 12322 if (softc->ha_mode == CTL_HA_MODE_XFER) { 12323 ctl_done(io); 12324 break; 12325 } 12326 if (targ_lun >= CTL_MAX_LUNS || 12327 (lun = softc->ctl_luns[targ_lun]) == NULL) { 12328 ctl_free_io(io); 12329 break; 12330 } 12331 mtx_lock(&lun->lun_lock); 12332 TAILQ_REMOVE(&lun->ooa_queue, &io->io_hdr, ooa_links); 12333 ctl_check_blocked(lun); 12334 mtx_unlock(&lun->lun_lock); 12335 ctl_free_io(io); 12336 break; 12337 case CTL_MSG_PERS_ACTION: 12338 ctl_hndl_per_res_out_on_other_sc(io); 12339 ctl_free_io(io); 12340 break; 12341 case CTL_MSG_BAD_JUJU: 12342 ctl_done(io); 12343 break; 12344 case CTL_MSG_DATAMOVE: /* Only used in XFER mode */ 12345 ctl_datamove_remote(io); 12346 break; 12347 case CTL_MSG_DATAMOVE_DONE: /* Only used in XFER mode */ 12348 io->scsiio.be_move_done(io); 12349 break; 12350 case CTL_MSG_FAILOVER: 12351 ctl_failover_lun(io); 12352 ctl_free_io(io); 12353 break; 12354 default: 12355 printf("%s: Invalid message type %d\n", 12356 __func__, io->io_hdr.msg_type); 12357 ctl_free_io(io); 12358 break; 12359 } 12360 12361} 12362 12363 12364/* 12365 * Returns the match type in the case of a match, or CTL_LUN_PAT_NONE if 12366 * there is no match. 12367 */ 12368static ctl_lun_error_pattern 12369ctl_cmd_pattern_match(struct ctl_scsiio *ctsio, struct ctl_error_desc *desc) 12370{ 12371 const struct ctl_cmd_entry *entry; 12372 ctl_lun_error_pattern filtered_pattern, pattern; 12373 12374 pattern = desc->error_pattern; 12375 12376 /* 12377 * XXX KDM we need more data passed into this function to match a 12378 * custom pattern, and we actually need to implement custom pattern 12379 * matching. 12380 */ 12381 if (pattern & CTL_LUN_PAT_CMD) 12382 return (CTL_LUN_PAT_CMD); 12383 12384 if ((pattern & CTL_LUN_PAT_MASK) == CTL_LUN_PAT_ANY) 12385 return (CTL_LUN_PAT_ANY); 12386 12387 entry = ctl_get_cmd_entry(ctsio, NULL); 12388 12389 filtered_pattern = entry->pattern & pattern; 12390 12391 /* 12392 * If the user requested specific flags in the pattern (e.g. 12393 * CTL_LUN_PAT_RANGE), make sure the command supports all of those 12394 * flags. 12395 * 12396 * If the user did not specify any flags, it doesn't matter whether 12397 * or not the command supports the flags. 12398 */ 12399 if ((filtered_pattern & ~CTL_LUN_PAT_MASK) != 12400 (pattern & ~CTL_LUN_PAT_MASK)) 12401 return (CTL_LUN_PAT_NONE); 12402 12403 /* 12404 * If the user asked for a range check, see if the requested LBA 12405 * range overlaps with this command's LBA range. 12406 */ 12407 if (filtered_pattern & CTL_LUN_PAT_RANGE) { 12408 uint64_t lba1; 12409 uint64_t len1; 12410 ctl_action action; 12411 int retval; 12412 12413 retval = ctl_get_lba_len((union ctl_io *)ctsio, &lba1, &len1); 12414 if (retval != 0) 12415 return (CTL_LUN_PAT_NONE); 12416 12417 action = ctl_extent_check_lba(lba1, len1, desc->lba_range.lba, 12418 desc->lba_range.len, FALSE); 12419 /* 12420 * A "pass" means that the LBA ranges don't overlap, so 12421 * this doesn't match the user's range criteria. 12422 */ 12423 if (action == CTL_ACTION_PASS) 12424 return (CTL_LUN_PAT_NONE); 12425 } 12426 12427 return (filtered_pattern); 12428} 12429 12430static void 12431ctl_inject_error(struct ctl_lun *lun, union ctl_io *io) 12432{ 12433 struct ctl_error_desc *desc, *desc2; 12434 12435 mtx_assert(&lun->lun_lock, MA_OWNED); 12436 12437 STAILQ_FOREACH_SAFE(desc, &lun->error_list, links, desc2) { 12438 ctl_lun_error_pattern pattern; 12439 /* 12440 * Check to see whether this particular command matches 12441 * the pattern in the descriptor. 12442 */ 12443 pattern = ctl_cmd_pattern_match(&io->scsiio, desc); 12444 if ((pattern & CTL_LUN_PAT_MASK) == CTL_LUN_PAT_NONE) 12445 continue; 12446 12447 switch (desc->lun_error & CTL_LUN_INJ_TYPE) { 12448 case CTL_LUN_INJ_ABORTED: 12449 ctl_set_aborted(&io->scsiio); 12450 break; 12451 case CTL_LUN_INJ_MEDIUM_ERR: 12452 ctl_set_medium_error(&io->scsiio, 12453 (io->io_hdr.flags & CTL_FLAG_DATA_MASK) != 12454 CTL_FLAG_DATA_OUT); 12455 break; 12456 case CTL_LUN_INJ_UA: 12457 /* 29h/00h POWER ON, RESET, OR BUS DEVICE RESET 12458 * OCCURRED */ 12459 ctl_set_ua(&io->scsiio, 0x29, 0x00); 12460 break; 12461 case CTL_LUN_INJ_CUSTOM: 12462 /* 12463 * We're assuming the user knows what he is doing. 12464 * Just copy the sense information without doing 12465 * checks. 12466 */ 12467 bcopy(&desc->custom_sense, &io->scsiio.sense_data, 12468 MIN(sizeof(desc->custom_sense), 12469 sizeof(io->scsiio.sense_data))); 12470 io->scsiio.scsi_status = SCSI_STATUS_CHECK_COND; 12471 io->scsiio.sense_len = SSD_FULL_SIZE; 12472 io->io_hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 12473 break; 12474 case CTL_LUN_INJ_NONE: 12475 default: 12476 /* 12477 * If this is an error injection type we don't know 12478 * about, clear the continuous flag (if it is set) 12479 * so it will get deleted below. 12480 */ 12481 desc->lun_error &= ~CTL_LUN_INJ_CONTINUOUS; 12482 break; 12483 } 12484 /* 12485 * By default, each error injection action is a one-shot 12486 */ 12487 if (desc->lun_error & CTL_LUN_INJ_CONTINUOUS) 12488 continue; 12489 12490 STAILQ_REMOVE(&lun->error_list, desc, ctl_error_desc, links); 12491 12492 free(desc, M_CTL); 12493 } 12494} 12495 12496#ifdef CTL_IO_DELAY 12497static void 12498ctl_datamove_timer_wakeup(void *arg) 12499{ 12500 union ctl_io *io; 12501 12502 io = (union ctl_io *)arg; 12503 12504 ctl_datamove(io); 12505} 12506#endif /* CTL_IO_DELAY */ 12507 12508void 12509ctl_datamove(union ctl_io *io) 12510{ 12511 void (*fe_datamove)(union ctl_io *io); 12512 12513 mtx_assert(&((struct ctl_softc *)CTL_SOFTC(io))->ctl_lock, MA_NOTOWNED); 12514 12515 CTL_DEBUG_PRINT(("ctl_datamove\n")); 12516 12517#ifdef CTL_TIME_IO 12518 if ((time_uptime - io->io_hdr.start_time) > ctl_time_io_secs) { 12519 char str[256]; 12520 char path_str[64]; 12521 struct sbuf sb; 12522 12523 ctl_scsi_path_string(io, path_str, sizeof(path_str)); 12524 sbuf_new(&sb, str, sizeof(str), SBUF_FIXEDLEN); 12525 12526 sbuf_cat(&sb, path_str); 12527 switch (io->io_hdr.io_type) { 12528 case CTL_IO_SCSI: 12529 ctl_scsi_command_string(&io->scsiio, NULL, &sb); 12530 sbuf_printf(&sb, "\n"); 12531 sbuf_cat(&sb, path_str); 12532 sbuf_printf(&sb, "Tag: 0x%04x, type %d\n", 12533 io->scsiio.tag_num, io->scsiio.tag_type); 12534 break; 12535 case CTL_IO_TASK: 12536 sbuf_printf(&sb, "Task I/O type: %d, Tag: 0x%04x, " 12537 "Tag Type: %d\n", io->taskio.task_action, 12538 io->taskio.tag_num, io->taskio.tag_type); 12539 break; 12540 default: 12541 panic("%s: Invalid CTL I/O type %d\n", 12542 __func__, io->io_hdr.io_type); 12543 } 12544 sbuf_cat(&sb, path_str); 12545 sbuf_printf(&sb, "ctl_datamove: %jd seconds\n", 12546 (intmax_t)time_uptime - io->io_hdr.start_time); 12547 sbuf_finish(&sb); 12548 printf("%s", sbuf_data(&sb)); 12549 } 12550#endif /* CTL_TIME_IO */ 12551 12552#ifdef CTL_IO_DELAY 12553 if (io->io_hdr.flags & CTL_FLAG_DELAY_DONE) { 12554 io->io_hdr.flags &= ~CTL_FLAG_DELAY_DONE; 12555 } else { 12556 if ((lun != NULL) 12557 && (lun->delay_info.datamove_delay > 0)) { 12558 12559 callout_init(&io->io_hdr.delay_callout, /*mpsafe*/ 1); 12560 io->io_hdr.flags |= CTL_FLAG_DELAY_DONE; 12561 callout_reset(&io->io_hdr.delay_callout, 12562 lun->delay_info.datamove_delay * hz, 12563 ctl_datamove_timer_wakeup, io); 12564 if (lun->delay_info.datamove_type == 12565 CTL_DELAY_TYPE_ONESHOT) 12566 lun->delay_info.datamove_delay = 0; 12567 return; 12568 } 12569 } 12570#endif 12571 12572 /* 12573 * This command has been aborted. Set the port status, so we fail 12574 * the data move. 12575 */ 12576 if (io->io_hdr.flags & CTL_FLAG_ABORT) { 12577 printf("ctl_datamove: tag 0x%04x on (%u:%u:%u) aborted\n", 12578 io->scsiio.tag_num, io->io_hdr.nexus.initid, 12579 io->io_hdr.nexus.targ_port, 12580 io->io_hdr.nexus.targ_lun); 12581 io->io_hdr.port_status = 31337; 12582 /* 12583 * Note that the backend, in this case, will get the 12584 * callback in its context. In other cases it may get 12585 * called in the frontend's interrupt thread context. 12586 */ 12587 io->scsiio.be_move_done(io); 12588 return; 12589 } 12590 12591 /* Don't confuse frontend with zero length data move. */ 12592 if (io->scsiio.kern_data_len == 0) { 12593 io->scsiio.be_move_done(io); 12594 return; 12595 } 12596 12597 fe_datamove = CTL_PORT(io)->fe_datamove; 12598 fe_datamove(io); 12599} 12600 12601static void 12602ctl_send_datamove_done(union ctl_io *io, int have_lock) 12603{ 12604 union ctl_ha_msg msg; 12605#ifdef CTL_TIME_IO 12606 struct bintime cur_bt; 12607#endif 12608 12609 memset(&msg, 0, sizeof(msg)); 12610 msg.hdr.msg_type = CTL_MSG_DATAMOVE_DONE; 12611 msg.hdr.original_sc = io; 12612 msg.hdr.serializing_sc = io->io_hdr.serializing_sc; 12613 msg.hdr.nexus = io->io_hdr.nexus; 12614 msg.hdr.status = io->io_hdr.status; 12615 msg.scsi.tag_num = io->scsiio.tag_num; 12616 msg.scsi.tag_type = io->scsiio.tag_type; 12617 msg.scsi.scsi_status = io->scsiio.scsi_status; 12618 memcpy(&msg.scsi.sense_data, &io->scsiio.sense_data, 12619 io->scsiio.sense_len); 12620 msg.scsi.sense_len = io->scsiio.sense_len; 12621 msg.scsi.sense_residual = io->scsiio.sense_residual; 12622 msg.scsi.fetd_status = io->io_hdr.port_status; 12623 msg.scsi.residual = io->scsiio.residual; 12624 io->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 12625 if (io->io_hdr.flags & CTL_FLAG_FAILOVER) { 12626 ctl_failover_io(io, /*have_lock*/ have_lock); 12627 return; 12628 } 12629 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, 12630 sizeof(msg.scsi) - sizeof(msg.scsi.sense_data) + 12631 msg.scsi.sense_len, M_WAITOK); 12632 12633#ifdef CTL_TIME_IO 12634 getbinuptime(&cur_bt); 12635 bintime_sub(&cur_bt, &io->io_hdr.dma_start_bt); 12636 bintime_add(&io->io_hdr.dma_bt, &cur_bt); 12637#endif 12638 io->io_hdr.num_dmas++; 12639} 12640 12641/* 12642 * The DMA to the remote side is done, now we need to tell the other side 12643 * we're done so it can continue with its data movement. 12644 */ 12645static void 12646ctl_datamove_remote_write_cb(struct ctl_ha_dt_req *rq) 12647{ 12648 union ctl_io *io; 12649 uint32_t i; 12650 12651 io = rq->context; 12652 12653 if (rq->ret != CTL_HA_STATUS_SUCCESS) { 12654 printf("%s: ISC DMA write failed with error %d", __func__, 12655 rq->ret); 12656 ctl_set_internal_failure(&io->scsiio, 12657 /*sks_valid*/ 1, 12658 /*retry_count*/ rq->ret); 12659 } 12660 12661 ctl_dt_req_free(rq); 12662 12663 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 12664 free(io->io_hdr.local_sglist[i].addr, M_CTL); 12665 free(io->io_hdr.remote_sglist, M_CTL); 12666 io->io_hdr.remote_sglist = NULL; 12667 io->io_hdr.local_sglist = NULL; 12668 12669 /* 12670 * The data is in local and remote memory, so now we need to send 12671 * status (good or back) back to the other side. 12672 */ 12673 ctl_send_datamove_done(io, /*have_lock*/ 0); 12674} 12675 12676/* 12677 * We've moved the data from the host/controller into local memory. Now we 12678 * need to push it over to the remote controller's memory. 12679 */ 12680static int 12681ctl_datamove_remote_dm_write_cb(union ctl_io *io) 12682{ 12683 int retval; 12684 12685 retval = ctl_datamove_remote_xfer(io, CTL_HA_DT_CMD_WRITE, 12686 ctl_datamove_remote_write_cb); 12687 return (retval); 12688} 12689 12690static void 12691ctl_datamove_remote_write(union ctl_io *io) 12692{ 12693 int retval; 12694 void (*fe_datamove)(union ctl_io *io); 12695 12696 /* 12697 * - Get the data from the host/HBA into local memory. 12698 * - DMA memory from the local controller to the remote controller. 12699 * - Send status back to the remote controller. 12700 */ 12701 12702 retval = ctl_datamove_remote_sgl_setup(io); 12703 if (retval != 0) 12704 return; 12705 12706 /* Switch the pointer over so the FETD knows what to do */ 12707 io->scsiio.kern_data_ptr = (uint8_t *)io->io_hdr.local_sglist; 12708 12709 /* 12710 * Use a custom move done callback, since we need to send completion 12711 * back to the other controller, not to the backend on this side. 12712 */ 12713 io->scsiio.be_move_done = ctl_datamove_remote_dm_write_cb; 12714 12715 fe_datamove = CTL_PORT(io)->fe_datamove; 12716 fe_datamove(io); 12717} 12718 12719static int 12720ctl_datamove_remote_dm_read_cb(union ctl_io *io) 12721{ 12722#if 0 12723 char str[256]; 12724 char path_str[64]; 12725 struct sbuf sb; 12726#endif 12727 uint32_t i; 12728 12729 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 12730 free(io->io_hdr.local_sglist[i].addr, M_CTL); 12731 free(io->io_hdr.remote_sglist, M_CTL); 12732 io->io_hdr.remote_sglist = NULL; 12733 io->io_hdr.local_sglist = NULL; 12734 12735#if 0 12736 scsi_path_string(io, path_str, sizeof(path_str)); 12737 sbuf_new(&sb, str, sizeof(str), SBUF_FIXEDLEN); 12738 sbuf_cat(&sb, path_str); 12739 scsi_command_string(&io->scsiio, NULL, &sb); 12740 sbuf_printf(&sb, "\n"); 12741 sbuf_cat(&sb, path_str); 12742 sbuf_printf(&sb, "Tag: 0x%04x, type %d\n", 12743 io->scsiio.tag_num, io->scsiio.tag_type); 12744 sbuf_cat(&sb, path_str); 12745 sbuf_printf(&sb, "%s: flags %#x, status %#x\n", __func__, 12746 io->io_hdr.flags, io->io_hdr.status); 12747 sbuf_finish(&sb); 12748 printk("%s", sbuf_data(&sb)); 12749#endif 12750 12751 12752 /* 12753 * The read is done, now we need to send status (good or bad) back 12754 * to the other side. 12755 */ 12756 ctl_send_datamove_done(io, /*have_lock*/ 0); 12757 12758 return (0); 12759} 12760 12761static void 12762ctl_datamove_remote_read_cb(struct ctl_ha_dt_req *rq) 12763{ 12764 union ctl_io *io; 12765 void (*fe_datamove)(union ctl_io *io); 12766 12767 io = rq->context; 12768 12769 if (rq->ret != CTL_HA_STATUS_SUCCESS) { 12770 printf("%s: ISC DMA read failed with error %d\n", __func__, 12771 rq->ret); 12772 ctl_set_internal_failure(&io->scsiio, 12773 /*sks_valid*/ 1, 12774 /*retry_count*/ rq->ret); 12775 } 12776 12777 ctl_dt_req_free(rq); 12778 12779 /* Switch the pointer over so the FETD knows what to do */ 12780 io->scsiio.kern_data_ptr = (uint8_t *)io->io_hdr.local_sglist; 12781 12782 /* 12783 * Use a custom move done callback, since we need to send completion 12784 * back to the other controller, not to the backend on this side. 12785 */ 12786 io->scsiio.be_move_done = ctl_datamove_remote_dm_read_cb; 12787 12788 /* XXX KDM add checks like the ones in ctl_datamove? */ 12789 12790 fe_datamove = CTL_PORT(io)->fe_datamove; 12791 fe_datamove(io); 12792} 12793 12794static int 12795ctl_datamove_remote_sgl_setup(union ctl_io *io) 12796{ 12797 struct ctl_sg_entry *local_sglist; 12798 uint32_t len_to_go; 12799 int retval; 12800 int i; 12801 12802 retval = 0; 12803 local_sglist = io->io_hdr.local_sglist; 12804 len_to_go = io->scsiio.kern_data_len; 12805 12806 /* 12807 * The difficult thing here is that the size of the various 12808 * S/G segments may be different than the size from the 12809 * remote controller. That'll make it harder when DMAing 12810 * the data back to the other side. 12811 */ 12812 for (i = 0; len_to_go > 0; i++) { 12813 local_sglist[i].len = MIN(len_to_go, CTL_HA_DATAMOVE_SEGMENT); 12814 local_sglist[i].addr = 12815 malloc(local_sglist[i].len, M_CTL, M_WAITOK); 12816 12817 len_to_go -= local_sglist[i].len; 12818 } 12819 /* 12820 * Reset the number of S/G entries accordingly. The original 12821 * number of S/G entries is available in rem_sg_entries. 12822 */ 12823 io->scsiio.kern_sg_entries = i; 12824 12825#if 0 12826 printf("%s: kern_sg_entries = %d\n", __func__, 12827 io->scsiio.kern_sg_entries); 12828 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 12829 printf("%s: sg[%d] = %p, %lu\n", __func__, i, 12830 local_sglist[i].addr, local_sglist[i].len); 12831#endif 12832 12833 return (retval); 12834} 12835 12836static int 12837ctl_datamove_remote_xfer(union ctl_io *io, unsigned command, 12838 ctl_ha_dt_cb callback) 12839{ 12840 struct ctl_ha_dt_req *rq; 12841 struct ctl_sg_entry *remote_sglist, *local_sglist; 12842 uint32_t local_used, remote_used, total_used; 12843 int i, j, isc_ret; 12844 12845 rq = ctl_dt_req_alloc(); 12846 12847 /* 12848 * If we failed to allocate the request, and if the DMA didn't fail 12849 * anyway, set busy status. This is just a resource allocation 12850 * failure. 12851 */ 12852 if ((rq == NULL) 12853 && ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE && 12854 (io->io_hdr.status & CTL_STATUS_MASK) != CTL_SUCCESS)) 12855 ctl_set_busy(&io->scsiio); 12856 12857 if ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE && 12858 (io->io_hdr.status & CTL_STATUS_MASK) != CTL_SUCCESS) { 12859 12860 if (rq != NULL) 12861 ctl_dt_req_free(rq); 12862 12863 /* 12864 * The data move failed. We need to return status back 12865 * to the other controller. No point in trying to DMA 12866 * data to the remote controller. 12867 */ 12868 12869 ctl_send_datamove_done(io, /*have_lock*/ 0); 12870 12871 return (1); 12872 } 12873 12874 local_sglist = io->io_hdr.local_sglist; 12875 remote_sglist = io->io_hdr.remote_sglist; 12876 local_used = 0; 12877 remote_used = 0; 12878 total_used = 0; 12879 12880 /* 12881 * Pull/push the data over the wire from/to the other controller. 12882 * This takes into account the possibility that the local and 12883 * remote sglists may not be identical in terms of the size of 12884 * the elements and the number of elements. 12885 * 12886 * One fundamental assumption here is that the length allocated for 12887 * both the local and remote sglists is identical. Otherwise, we've 12888 * essentially got a coding error of some sort. 12889 */ 12890 isc_ret = CTL_HA_STATUS_SUCCESS; 12891 for (i = 0, j = 0; total_used < io->scsiio.kern_data_len; ) { 12892 uint32_t cur_len; 12893 uint8_t *tmp_ptr; 12894 12895 rq->command = command; 12896 rq->context = io; 12897 12898 /* 12899 * Both pointers should be aligned. But it is possible 12900 * that the allocation length is not. They should both 12901 * also have enough slack left over at the end, though, 12902 * to round up to the next 8 byte boundary. 12903 */ 12904 cur_len = MIN(local_sglist[i].len - local_used, 12905 remote_sglist[j].len - remote_used); 12906 rq->size = cur_len; 12907 12908 tmp_ptr = (uint8_t *)local_sglist[i].addr; 12909 tmp_ptr += local_used; 12910 12911#if 0 12912 /* Use physical addresses when talking to ISC hardware */ 12913 if ((io->io_hdr.flags & CTL_FLAG_BUS_ADDR) == 0) { 12914 /* XXX KDM use busdma */ 12915 rq->local = vtophys(tmp_ptr); 12916 } else 12917 rq->local = tmp_ptr; 12918#else 12919 KASSERT((io->io_hdr.flags & CTL_FLAG_BUS_ADDR) == 0, 12920 ("HA does not support BUS_ADDR")); 12921 rq->local = tmp_ptr; 12922#endif 12923 12924 tmp_ptr = (uint8_t *)remote_sglist[j].addr; 12925 tmp_ptr += remote_used; 12926 rq->remote = tmp_ptr; 12927 12928 rq->callback = NULL; 12929 12930 local_used += cur_len; 12931 if (local_used >= local_sglist[i].len) { 12932 i++; 12933 local_used = 0; 12934 } 12935 12936 remote_used += cur_len; 12937 if (remote_used >= remote_sglist[j].len) { 12938 j++; 12939 remote_used = 0; 12940 } 12941 total_used += cur_len; 12942 12943 if (total_used >= io->scsiio.kern_data_len) 12944 rq->callback = callback; 12945 12946#if 0 12947 printf("%s: %s: local %p remote %p size %d\n", __func__, 12948 (command == CTL_HA_DT_CMD_WRITE) ? "WRITE" : "READ", 12949 rq->local, rq->remote, rq->size); 12950#endif 12951 12952 isc_ret = ctl_dt_single(rq); 12953 if (isc_ret > CTL_HA_STATUS_SUCCESS) 12954 break; 12955 } 12956 if (isc_ret != CTL_HA_STATUS_WAIT) { 12957 rq->ret = isc_ret; 12958 callback(rq); 12959 } 12960 12961 return (0); 12962} 12963 12964static void 12965ctl_datamove_remote_read(union ctl_io *io) 12966{ 12967 int retval; 12968 uint32_t i; 12969 12970 /* 12971 * This will send an error to the other controller in the case of a 12972 * failure. 12973 */ 12974 retval = ctl_datamove_remote_sgl_setup(io); 12975 if (retval != 0) 12976 return; 12977 12978 retval = ctl_datamove_remote_xfer(io, CTL_HA_DT_CMD_READ, 12979 ctl_datamove_remote_read_cb); 12980 if (retval != 0) { 12981 /* 12982 * Make sure we free memory if there was an error.. The 12983 * ctl_datamove_remote_xfer() function will send the 12984 * datamove done message, or call the callback with an 12985 * error if there is a problem. 12986 */ 12987 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 12988 free(io->io_hdr.local_sglist[i].addr, M_CTL); 12989 free(io->io_hdr.remote_sglist, M_CTL); 12990 io->io_hdr.remote_sglist = NULL; 12991 io->io_hdr.local_sglist = NULL; 12992 } 12993} 12994 12995/* 12996 * Process a datamove request from the other controller. This is used for 12997 * XFER mode only, not SER_ONLY mode. For writes, we DMA into local memory 12998 * first. Once that is complete, the data gets DMAed into the remote 12999 * controller's memory. For reads, we DMA from the remote controller's 13000 * memory into our memory first, and then move it out to the FETD. 13001 */ 13002static void 13003ctl_datamove_remote(union ctl_io *io) 13004{ 13005 13006 mtx_assert(&((struct ctl_softc *)CTL_SOFTC(io))->ctl_lock, MA_NOTOWNED); 13007 13008 if (io->io_hdr.flags & CTL_FLAG_FAILOVER) { 13009 ctl_failover_io(io, /*have_lock*/ 0); 13010 return; 13011 } 13012 13013 /* 13014 * Note that we look for an aborted I/O here, but don't do some of 13015 * the other checks that ctl_datamove() normally does. 13016 * We don't need to run the datamove delay code, since that should 13017 * have been done if need be on the other controller. 13018 */ 13019 if (io->io_hdr.flags & CTL_FLAG_ABORT) { 13020 printf("%s: tag 0x%04x on (%u:%u:%u) aborted\n", __func__, 13021 io->scsiio.tag_num, io->io_hdr.nexus.initid, 13022 io->io_hdr.nexus.targ_port, 13023 io->io_hdr.nexus.targ_lun); 13024 io->io_hdr.port_status = 31338; 13025 ctl_send_datamove_done(io, /*have_lock*/ 0); 13026 return; 13027 } 13028 13029 if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_OUT) 13030 ctl_datamove_remote_write(io); 13031 else if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_IN) 13032 ctl_datamove_remote_read(io); 13033 else { 13034 io->io_hdr.port_status = 31339; 13035 ctl_send_datamove_done(io, /*have_lock*/ 0); 13036 } 13037} 13038 13039static void 13040ctl_process_done(union ctl_io *io) 13041{ 13042 struct ctl_softc *softc = CTL_SOFTC(io); 13043 struct ctl_lun *lun = CTL_LUN(io); 13044 void (*fe_done)(union ctl_io *io); 13045 union ctl_ha_msg msg; 13046 uint32_t targ_port = io->io_hdr.nexus.targ_port; 13047 13048 CTL_DEBUG_PRINT(("ctl_process_done\n")); 13049 fe_done = softc->ctl_ports[targ_port]->fe_done; 13050 13051#ifdef CTL_TIME_IO 13052 if ((time_uptime - io->io_hdr.start_time) > ctl_time_io_secs) { 13053 char str[256]; 13054 char path_str[64]; 13055 struct sbuf sb; 13056 13057 ctl_scsi_path_string(io, path_str, sizeof(path_str)); 13058 sbuf_new(&sb, str, sizeof(str), SBUF_FIXEDLEN); 13059 13060 sbuf_cat(&sb, path_str); 13061 switch (io->io_hdr.io_type) { 13062 case CTL_IO_SCSI: 13063 ctl_scsi_command_string(&io->scsiio, NULL, &sb); 13064 sbuf_printf(&sb, "\n"); 13065 sbuf_cat(&sb, path_str); 13066 sbuf_printf(&sb, "Tag: 0x%04x, type %d\n", 13067 io->scsiio.tag_num, io->scsiio.tag_type); 13068 break; 13069 case CTL_IO_TASK: 13070 sbuf_printf(&sb, "Task I/O type: %d, Tag: 0x%04x, " 13071 "Tag Type: %d\n", io->taskio.task_action, 13072 io->taskio.tag_num, io->taskio.tag_type); 13073 break; 13074 default: 13075 panic("%s: Invalid CTL I/O type %d\n", 13076 __func__, io->io_hdr.io_type); 13077 } 13078 sbuf_cat(&sb, path_str); 13079 sbuf_printf(&sb, "ctl_process_done: %jd seconds\n", 13080 (intmax_t)time_uptime - io->io_hdr.start_time); 13081 sbuf_finish(&sb); 13082 printf("%s", sbuf_data(&sb)); 13083 } 13084#endif /* CTL_TIME_IO */ 13085 13086 switch (io->io_hdr.io_type) { 13087 case CTL_IO_SCSI: 13088 break; 13089 case CTL_IO_TASK: 13090 if (ctl_debug & CTL_DEBUG_INFO) 13091 ctl_io_error_print(io, NULL); 13092 fe_done(io); 13093 return; 13094 default: 13095 panic("%s: Invalid CTL I/O type %d\n", 13096 __func__, io->io_hdr.io_type); 13097 } 13098 13099 if (lun == NULL) { 13100 CTL_DEBUG_PRINT(("NULL LUN for lun %d\n", 13101 io->io_hdr.nexus.targ_mapped_lun)); 13102 goto bailout; 13103 } 13104 13105 mtx_lock(&lun->lun_lock); 13106 13107 /* 13108 * Check to see if we have any informational exception and status 13109 * of this command can be modified to report it in form of either 13110 * RECOVERED ERROR or NO SENSE, depending on MRIE mode page field. 13111 */ 13112 if (lun->ie_reported == 0 && lun->ie_asc != 0 && 13113 io->io_hdr.status == CTL_SUCCESS && 13114 (io->io_hdr.flags & CTL_FLAG_STATUS_SENT) == 0) { 13115 uint8_t mrie = lun->MODE_IE.mrie; 13116 uint8_t per = ((lun->MODE_RWER.byte3 & SMS_RWER_PER) || 13117 (lun->MODE_VER.byte3 & SMS_VER_PER)); 13118 if (((mrie == SIEP_MRIE_REC_COND && per) || 13119 mrie == SIEP_MRIE_REC_UNCOND || 13120 mrie == SIEP_MRIE_NO_SENSE) && 13121 (ctl_get_cmd_entry(&io->scsiio, NULL)->flags & 13122 CTL_CMD_FLAG_NO_SENSE) == 0) { 13123 ctl_set_sense(&io->scsiio, 13124 /*current_error*/ 1, 13125 /*sense_key*/ (mrie == SIEP_MRIE_NO_SENSE) ? 13126 SSD_KEY_NO_SENSE : SSD_KEY_RECOVERED_ERROR, 13127 /*asc*/ lun->ie_asc, 13128 /*ascq*/ lun->ie_ascq, 13129 SSD_ELEM_NONE); 13130 lun->ie_reported = 1; 13131 } 13132 } else if (lun->ie_reported < 0) 13133 lun->ie_reported = 0; 13134 13135 /* 13136 * Check to see if we have any errors to inject here. We only 13137 * inject errors for commands that don't already have errors set. 13138 */ 13139 if (!STAILQ_EMPTY(&lun->error_list) && 13140 ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS) && 13141 ((io->io_hdr.flags & CTL_FLAG_STATUS_SENT) == 0)) 13142 ctl_inject_error(lun, io); 13143 13144 /* 13145 * XXX KDM how do we treat commands that aren't completed 13146 * successfully? 13147 * 13148 * XXX KDM should we also track I/O latency? 13149 */ 13150 if ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS && 13151 io->io_hdr.io_type == CTL_IO_SCSI) { 13152#ifdef CTL_TIME_IO 13153 struct bintime cur_bt; 13154#endif 13155 int type; 13156 13157 if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == 13158 CTL_FLAG_DATA_IN) 13159 type = CTL_STATS_READ; 13160 else if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == 13161 CTL_FLAG_DATA_OUT) 13162 type = CTL_STATS_WRITE; 13163 else 13164 type = CTL_STATS_NO_IO; 13165 13166 lun->stats.ports[targ_port].bytes[type] += 13167 io->scsiio.kern_total_len; 13168 lun->stats.ports[targ_port].operations[type]++; 13169#ifdef CTL_TIME_IO 13170 bintime_add(&lun->stats.ports[targ_port].dma_time[type], 13171 &io->io_hdr.dma_bt); 13172 getbinuptime(&cur_bt); 13173 bintime_sub(&cur_bt, &io->io_hdr.start_bt); 13174 bintime_add(&lun->stats.ports[targ_port].time[type], &cur_bt); 13175#endif 13176 lun->stats.ports[targ_port].num_dmas[type] += 13177 io->io_hdr.num_dmas; 13178 } 13179 13180 /* 13181 * Remove this from the OOA queue. 13182 */ 13183 TAILQ_REMOVE(&lun->ooa_queue, &io->io_hdr, ooa_links); 13184#ifdef CTL_TIME_IO 13185 if (TAILQ_EMPTY(&lun->ooa_queue)) 13186 lun->last_busy = getsbinuptime(); 13187#endif 13188 13189 /* 13190 * Run through the blocked queue on this LUN and see if anything 13191 * has become unblocked, now that this transaction is done. 13192 */ 13193 ctl_check_blocked(lun); 13194 13195 /* 13196 * If the LUN has been invalidated, free it if there is nothing 13197 * left on its OOA queue. 13198 */ 13199 if ((lun->flags & CTL_LUN_INVALID) 13200 && TAILQ_EMPTY(&lun->ooa_queue)) { 13201 mtx_unlock(&lun->lun_lock); 13202 mtx_lock(&softc->ctl_lock); 13203 ctl_free_lun(lun); 13204 mtx_unlock(&softc->ctl_lock); 13205 } else 13206 mtx_unlock(&lun->lun_lock); 13207 13208bailout: 13209 13210 /* 13211 * If this command has been aborted, make sure we set the status 13212 * properly. The FETD is responsible for freeing the I/O and doing 13213 * whatever it needs to do to clean up its state. 13214 */ 13215 if (io->io_hdr.flags & CTL_FLAG_ABORT) 13216 ctl_set_task_aborted(&io->scsiio); 13217 13218 /* 13219 * If enabled, print command error status. 13220 */ 13221 if ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_SUCCESS && 13222 (ctl_debug & CTL_DEBUG_INFO) != 0) 13223 ctl_io_error_print(io, NULL); 13224 13225 /* 13226 * Tell the FETD or the other shelf controller we're done with this 13227 * command. Note that only SCSI commands get to this point. Task 13228 * management commands are completed above. 13229 */ 13230 if ((softc->ha_mode != CTL_HA_MODE_XFER) && 13231 (io->io_hdr.flags & CTL_FLAG_SENT_2OTHER_SC)) { 13232 memset(&msg, 0, sizeof(msg)); 13233 msg.hdr.msg_type = CTL_MSG_FINISH_IO; 13234 msg.hdr.serializing_sc = io->io_hdr.serializing_sc; 13235 msg.hdr.nexus = io->io_hdr.nexus; 13236 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, 13237 sizeof(msg.scsi) - sizeof(msg.scsi.sense_data), 13238 M_WAITOK); 13239 } 13240 13241 fe_done(io); 13242} 13243 13244#ifdef CTL_WITH_CA 13245/* 13246 * Front end should call this if it doesn't do autosense. When the request 13247 * sense comes back in from the initiator, we'll dequeue this and send it. 13248 */ 13249int 13250ctl_queue_sense(union ctl_io *io) 13251{ 13252 struct ctl_softc *softc = CTL_SOFTC(io); 13253 struct ctl_port *port = CTL_PORT(io); 13254 struct ctl_lun *lun; 13255 uint32_t initidx, targ_lun; 13256 13257 CTL_DEBUG_PRINT(("ctl_queue_sense\n")); 13258 13259 targ_lun = ctl_lun_map_from_port(port, io->io_hdr.nexus.targ_lun); 13260 13261 /* 13262 * LUN lookup will likely move to the ctl_work_thread() once we 13263 * have our new queueing infrastructure (that doesn't put things on 13264 * a per-LUN queue initially). That is so that we can handle 13265 * things like an INQUIRY to a LUN that we don't have enabled. We 13266 * can't deal with that right now. 13267 * If we don't have a LUN for this, just toss the sense information. 13268 */ 13269 mtx_lock(&softc->ctl_lock); 13270 if (targ_lun >= CTL_MAX_LUNS || 13271 (lun = softc->ctl_luns[targ_lun]) == NULL) { 13272 mtx_unlock(&softc->ctl_lock); 13273 goto bailout; 13274 } 13275 mtx_lock(&lun->lun_lock); 13276 mtx_unlock(&softc->ctl_lock); 13277 13278 /* 13279 * Already have CA set for this LUN...toss the sense information. 13280 */ 13281 initidx = ctl_get_initindex(&io->io_hdr.nexus); 13282 if (ctl_is_set(lun->have_ca, initidx)) { 13283 mtx_unlock(&lun->lun_lock); 13284 goto bailout; 13285 } 13286 13287 memcpy(&lun->pending_sense[initidx], &io->scsiio.sense_data, 13288 MIN(sizeof(lun->pending_sense[initidx]), 13289 sizeof(io->scsiio.sense_data))); 13290 ctl_set_mask(lun->have_ca, initidx); 13291 mtx_unlock(&lun->lun_lock); 13292 13293bailout: 13294 ctl_free_io(io); 13295 return (CTL_RETVAL_COMPLETE); 13296} 13297#endif 13298 13299/* 13300 * Primary command inlet from frontend ports. All SCSI and task I/O 13301 * requests must go through this function. 13302 */ 13303int 13304ctl_queue(union ctl_io *io) 13305{ 13306 struct ctl_port *port = CTL_PORT(io); 13307 13308 CTL_DEBUG_PRINT(("ctl_queue cdb[0]=%02X\n", io->scsiio.cdb[0])); 13309 13310#ifdef CTL_TIME_IO 13311 io->io_hdr.start_time = time_uptime; 13312 getbinuptime(&io->io_hdr.start_bt); 13313#endif /* CTL_TIME_IO */ 13314 13315 /* Map FE-specific LUN ID into global one. */ 13316 io->io_hdr.nexus.targ_mapped_lun = 13317 ctl_lun_map_from_port(port, io->io_hdr.nexus.targ_lun); 13318 13319 switch (io->io_hdr.io_type) { 13320 case CTL_IO_SCSI: 13321 case CTL_IO_TASK: 13322 if (ctl_debug & CTL_DEBUG_CDB) 13323 ctl_io_print(io); 13324 ctl_enqueue_incoming(io); 13325 break; 13326 default: 13327 printf("ctl_queue: unknown I/O type %d\n", io->io_hdr.io_type); 13328 return (EINVAL); 13329 } 13330 13331 return (CTL_RETVAL_COMPLETE); 13332} 13333 13334#ifdef CTL_IO_DELAY 13335static void 13336ctl_done_timer_wakeup(void *arg) 13337{ 13338 union ctl_io *io; 13339 13340 io = (union ctl_io *)arg; 13341 ctl_done(io); 13342} 13343#endif /* CTL_IO_DELAY */ 13344 13345void 13346ctl_serseq_done(union ctl_io *io) 13347{ 13348 struct ctl_lun *lun = CTL_LUN(io);; 13349 13350 if (lun->be_lun == NULL || 13351 lun->be_lun->serseq == CTL_LUN_SERSEQ_OFF) 13352 return; 13353 mtx_lock(&lun->lun_lock); 13354 io->io_hdr.flags |= CTL_FLAG_SERSEQ_DONE; 13355 ctl_check_blocked(lun); 13356 mtx_unlock(&lun->lun_lock); 13357} 13358 13359void 13360ctl_done(union ctl_io *io) 13361{ 13362 13363 /* 13364 * Enable this to catch duplicate completion issues. 13365 */ 13366#if 0 13367 if (io->io_hdr.flags & CTL_FLAG_ALREADY_DONE) { 13368 printf("%s: type %d msg %d cdb %x iptl: " 13369 "%u:%u:%u tag 0x%04x " 13370 "flag %#x status %x\n", 13371 __func__, 13372 io->io_hdr.io_type, 13373 io->io_hdr.msg_type, 13374 io->scsiio.cdb[0], 13375 io->io_hdr.nexus.initid, 13376 io->io_hdr.nexus.targ_port, 13377 io->io_hdr.nexus.targ_lun, 13378 (io->io_hdr.io_type == 13379 CTL_IO_TASK) ? 13380 io->taskio.tag_num : 13381 io->scsiio.tag_num, 13382 io->io_hdr.flags, 13383 io->io_hdr.status); 13384 } else 13385 io->io_hdr.flags |= CTL_FLAG_ALREADY_DONE; 13386#endif 13387 13388 /* 13389 * This is an internal copy of an I/O, and should not go through 13390 * the normal done processing logic. 13391 */ 13392 if (io->io_hdr.flags & CTL_FLAG_INT_COPY) 13393 return; 13394 13395#ifdef CTL_IO_DELAY 13396 if (io->io_hdr.flags & CTL_FLAG_DELAY_DONE) { 13397 io->io_hdr.flags &= ~CTL_FLAG_DELAY_DONE; 13398 } else { 13399 struct ctl_lun *lun = CTL_LUN(io); 13400 13401 if ((lun != NULL) 13402 && (lun->delay_info.done_delay > 0)) { 13403 13404 callout_init(&io->io_hdr.delay_callout, /*mpsafe*/ 1); 13405 io->io_hdr.flags |= CTL_FLAG_DELAY_DONE; 13406 callout_reset(&io->io_hdr.delay_callout, 13407 lun->delay_info.done_delay * hz, 13408 ctl_done_timer_wakeup, io); 13409 if (lun->delay_info.done_type == CTL_DELAY_TYPE_ONESHOT) 13410 lun->delay_info.done_delay = 0; 13411 return; 13412 } 13413 } 13414#endif /* CTL_IO_DELAY */ 13415 13416 ctl_enqueue_done(io); 13417} 13418 13419static void 13420ctl_work_thread(void *arg) 13421{ 13422 struct ctl_thread *thr = (struct ctl_thread *)arg; 13423 struct ctl_softc *softc = thr->ctl_softc; 13424 union ctl_io *io; 13425 int retval; 13426 13427 CTL_DEBUG_PRINT(("ctl_work_thread starting\n")); 13428 13429 for (;;) { 13430 /* 13431 * We handle the queues in this order: 13432 * - ISC 13433 * - done queue (to free up resources, unblock other commands) 13434 * - RtR queue 13435 * - incoming queue 13436 * 13437 * If those queues are empty, we break out of the loop and 13438 * go to sleep. 13439 */ 13440 mtx_lock(&thr->queue_lock); 13441 io = (union ctl_io *)STAILQ_FIRST(&thr->isc_queue); 13442 if (io != NULL) { 13443 STAILQ_REMOVE_HEAD(&thr->isc_queue, links); 13444 mtx_unlock(&thr->queue_lock); 13445 ctl_handle_isc(io); 13446 continue; 13447 } 13448 io = (union ctl_io *)STAILQ_FIRST(&thr->done_queue); 13449 if (io != NULL) { 13450 STAILQ_REMOVE_HEAD(&thr->done_queue, links); 13451 /* clear any blocked commands, call fe_done */ 13452 mtx_unlock(&thr->queue_lock); 13453 ctl_process_done(io); 13454 continue; 13455 } 13456 io = (union ctl_io *)STAILQ_FIRST(&thr->incoming_queue); 13457 if (io != NULL) { 13458 STAILQ_REMOVE_HEAD(&thr->incoming_queue, links); 13459 mtx_unlock(&thr->queue_lock); 13460 if (io->io_hdr.io_type == CTL_IO_TASK) 13461 ctl_run_task(io); 13462 else 13463 ctl_scsiio_precheck(softc, &io->scsiio); 13464 continue; 13465 } 13466 io = (union ctl_io *)STAILQ_FIRST(&thr->rtr_queue); 13467 if (io != NULL) { 13468 STAILQ_REMOVE_HEAD(&thr->rtr_queue, links); 13469 mtx_unlock(&thr->queue_lock); 13470 retval = ctl_scsiio(&io->scsiio); 13471 if (retval != CTL_RETVAL_COMPLETE) 13472 CTL_DEBUG_PRINT(("ctl_scsiio failed\n")); 13473 continue; 13474 } 13475 13476 /* Sleep until we have something to do. */ 13477 mtx_sleep(thr, &thr->queue_lock, PDROP | PRIBIO, "-", 0); 13478 } 13479} 13480 13481static void 13482ctl_lun_thread(void *arg) 13483{ 13484 struct ctl_softc *softc = (struct ctl_softc *)arg; 13485 struct ctl_be_lun *be_lun; 13486 13487 CTL_DEBUG_PRINT(("ctl_lun_thread starting\n")); 13488 13489 for (;;) { 13490 mtx_lock(&softc->ctl_lock); 13491 be_lun = STAILQ_FIRST(&softc->pending_lun_queue); 13492 if (be_lun != NULL) { 13493 STAILQ_REMOVE_HEAD(&softc->pending_lun_queue, links); 13494 mtx_unlock(&softc->ctl_lock); 13495 ctl_create_lun(be_lun); 13496 continue; 13497 } 13498 13499 /* Sleep until we have something to do. */ 13500 mtx_sleep(&softc->pending_lun_queue, &softc->ctl_lock, 13501 PDROP | PRIBIO, "-", 0); 13502 } 13503} 13504 13505static void 13506ctl_thresh_thread(void *arg) 13507{ 13508 struct ctl_softc *softc = (struct ctl_softc *)arg; 13509 struct ctl_lun *lun; 13510 struct ctl_logical_block_provisioning_page *page; 13511 const char *attr; 13512 union ctl_ha_msg msg; 13513 uint64_t thres, val; 13514 int i, e, set; 13515 13516 CTL_DEBUG_PRINT(("ctl_thresh_thread starting\n")); 13517 13518 for (;;) { 13519 mtx_lock(&softc->ctl_lock); 13520 STAILQ_FOREACH(lun, &softc->lun_list, links) { 13521 if ((lun->flags & CTL_LUN_DISABLED) || 13522 (lun->flags & CTL_LUN_NO_MEDIA) || 13523 lun->backend->lun_attr == NULL) 13524 continue; 13525 if ((lun->flags & CTL_LUN_PRIMARY_SC) == 0 && 13526 softc->ha_mode == CTL_HA_MODE_XFER) 13527 continue; 13528 if ((lun->MODE_RWER.byte8 & SMS_RWER_LBPERE) == 0) 13529 continue; 13530 e = 0; 13531 page = &lun->MODE_LBP; 13532 for (i = 0; i < CTL_NUM_LBP_THRESH; i++) { 13533 if ((page->descr[i].flags & SLBPPD_ENABLED) == 0) 13534 continue; 13535 thres = scsi_4btoul(page->descr[i].count); 13536 thres <<= CTL_LBP_EXPONENT; 13537 switch (page->descr[i].resource) { 13538 case 0x01: 13539 attr = "blocksavail"; 13540 break; 13541 case 0x02: 13542 attr = "blocksused"; 13543 break; 13544 case 0xf1: 13545 attr = "poolblocksavail"; 13546 break; 13547 case 0xf2: 13548 attr = "poolblocksused"; 13549 break; 13550 default: 13551 continue; 13552 } 13553 mtx_unlock(&softc->ctl_lock); // XXX 13554 val = lun->backend->lun_attr( 13555 lun->be_lun->be_lun, attr); 13556 mtx_lock(&softc->ctl_lock); 13557 if (val == UINT64_MAX) 13558 continue; 13559 if ((page->descr[i].flags & SLBPPD_ARMING_MASK) 13560 == SLBPPD_ARMING_INC) 13561 e = (val >= thres); 13562 else 13563 e = (val <= thres); 13564 if (e) 13565 break; 13566 } 13567 mtx_lock(&lun->lun_lock); 13568 if (e) { 13569 scsi_u64to8b((uint8_t *)&page->descr[i] - 13570 (uint8_t *)page, lun->ua_tpt_info); 13571 if (lun->lasttpt == 0 || 13572 time_uptime - lun->lasttpt >= CTL_LBP_UA_PERIOD) { 13573 lun->lasttpt = time_uptime; 13574 ctl_est_ua_all(lun, -1, CTL_UA_THIN_PROV_THRES); 13575 set = 1; 13576 } else 13577 set = 0; 13578 } else { 13579 lun->lasttpt = 0; 13580 ctl_clr_ua_all(lun, -1, CTL_UA_THIN_PROV_THRES); 13581 set = -1; 13582 } 13583 mtx_unlock(&lun->lun_lock); 13584 if (set != 0 && 13585 lun->ctl_softc->ha_mode == CTL_HA_MODE_XFER) { 13586 /* Send msg to other side. */ 13587 bzero(&msg.ua, sizeof(msg.ua)); 13588 msg.hdr.msg_type = CTL_MSG_UA; 13589 msg.hdr.nexus.initid = -1; 13590 msg.hdr.nexus.targ_port = -1; 13591 msg.hdr.nexus.targ_lun = lun->lun; 13592 msg.hdr.nexus.targ_mapped_lun = lun->lun; 13593 msg.ua.ua_all = 1; 13594 msg.ua.ua_set = (set > 0); 13595 msg.ua.ua_type = CTL_UA_THIN_PROV_THRES; 13596 memcpy(msg.ua.ua_info, lun->ua_tpt_info, 8); 13597 mtx_unlock(&softc->ctl_lock); // XXX 13598 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, 13599 sizeof(msg.ua), M_WAITOK); 13600 mtx_lock(&softc->ctl_lock); 13601 } 13602 } 13603 mtx_unlock(&softc->ctl_lock); 13604 pause("-", CTL_LBP_PERIOD * hz); 13605 } 13606} 13607 13608static void 13609ctl_enqueue_incoming(union ctl_io *io) 13610{ 13611 struct ctl_softc *softc = CTL_SOFTC(io); 13612 struct ctl_thread *thr; 13613 u_int idx; 13614 13615 idx = (io->io_hdr.nexus.targ_port * 127 + 13616 io->io_hdr.nexus.initid) % worker_threads; 13617 thr = &softc->threads[idx]; 13618 mtx_lock(&thr->queue_lock); 13619 STAILQ_INSERT_TAIL(&thr->incoming_queue, &io->io_hdr, links); 13620 mtx_unlock(&thr->queue_lock); 13621 wakeup(thr); 13622} 13623 13624static void 13625ctl_enqueue_rtr(union ctl_io *io) 13626{ 13627 struct ctl_softc *softc = CTL_SOFTC(io); 13628 struct ctl_thread *thr; 13629 13630 thr = &softc->threads[io->io_hdr.nexus.targ_mapped_lun % worker_threads]; 13631 mtx_lock(&thr->queue_lock); 13632 STAILQ_INSERT_TAIL(&thr->rtr_queue, &io->io_hdr, links); 13633 mtx_unlock(&thr->queue_lock); 13634 wakeup(thr); 13635} 13636 13637static void 13638ctl_enqueue_done(union ctl_io *io) 13639{ 13640 struct ctl_softc *softc = CTL_SOFTC(io); 13641 struct ctl_thread *thr; 13642 13643 thr = &softc->threads[io->io_hdr.nexus.targ_mapped_lun % worker_threads]; 13644 mtx_lock(&thr->queue_lock); 13645 STAILQ_INSERT_TAIL(&thr->done_queue, &io->io_hdr, links); 13646 mtx_unlock(&thr->queue_lock); 13647 wakeup(thr); 13648} 13649 13650static void 13651ctl_enqueue_isc(union ctl_io *io) 13652{ 13653 struct ctl_softc *softc = CTL_SOFTC(io); 13654 struct ctl_thread *thr; 13655 13656 thr = &softc->threads[io->io_hdr.nexus.targ_mapped_lun % worker_threads]; 13657 mtx_lock(&thr->queue_lock); 13658 STAILQ_INSERT_TAIL(&thr->isc_queue, &io->io_hdr, links); 13659 mtx_unlock(&thr->queue_lock); 13660 wakeup(thr); 13661} 13662 13663/* 13664 * vim: ts=8 13665 */ 13666