ctl.c revision 312837
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 312837 2017-01-26 20:51:50Z mav $"); 47 48#include <sys/param.h> 49#include <sys/systm.h> 50#include <sys/ctype.h> 51#include <sys/kernel.h> 52#include <sys/types.h> 53#include <sys/kthread.h> 54#include <sys/bio.h> 55#include <sys/fcntl.h> 56#include <sys/lock.h> 57#include <sys/module.h> 58#include <sys/mutex.h> 59#include <sys/condvar.h> 60#include <sys/malloc.h> 61#include <sys/conf.h> 62#include <sys/ioccom.h> 63#include <sys/queue.h> 64#include <sys/sbuf.h> 65#include <sys/smp.h> 66#include <sys/endian.h> 67#include <sys/sysctl.h> 68#include <vm/uma.h> 69 70#include <cam/cam.h> 71#include <cam/scsi/scsi_all.h> 72#include <cam/scsi/scsi_cd.h> 73#include <cam/scsi/scsi_da.h> 74#include <cam/ctl/ctl_io.h> 75#include <cam/ctl/ctl.h> 76#include <cam/ctl/ctl_frontend.h> 77#include <cam/ctl/ctl_util.h> 78#include <cam/ctl/ctl_backend.h> 79#include <cam/ctl/ctl_ioctl.h> 80#include <cam/ctl/ctl_ha.h> 81#include <cam/ctl/ctl_private.h> 82#include <cam/ctl/ctl_debug.h> 83#include <cam/ctl/ctl_scsi_all.h> 84#include <cam/ctl/ctl_error.h> 85 86struct ctl_softc *control_softc = NULL; 87 88/* 89 * Template mode pages. 90 */ 91 92/* 93 * Note that these are default values only. The actual values will be 94 * filled in when the user does a mode sense. 95 */ 96const static struct scsi_da_rw_recovery_page rw_er_page_default = { 97 /*page_code*/SMS_RW_ERROR_RECOVERY_PAGE, 98 /*page_length*/sizeof(struct scsi_da_rw_recovery_page) - 2, 99 /*byte3*/SMS_RWER_AWRE|SMS_RWER_ARRE, 100 /*read_retry_count*/0, 101 /*correction_span*/0, 102 /*head_offset_count*/0, 103 /*data_strobe_offset_cnt*/0, 104 /*byte8*/SMS_RWER_LBPERE, 105 /*write_retry_count*/0, 106 /*reserved2*/0, 107 /*recovery_time_limit*/{0, 0}, 108}; 109 110const static struct scsi_da_rw_recovery_page rw_er_page_changeable = { 111 /*page_code*/SMS_RW_ERROR_RECOVERY_PAGE, 112 /*page_length*/sizeof(struct scsi_da_rw_recovery_page) - 2, 113 /*byte3*/SMS_RWER_PER, 114 /*read_retry_count*/0, 115 /*correction_span*/0, 116 /*head_offset_count*/0, 117 /*data_strobe_offset_cnt*/0, 118 /*byte8*/SMS_RWER_LBPERE, 119 /*write_retry_count*/0, 120 /*reserved2*/0, 121 /*recovery_time_limit*/{0, 0}, 122}; 123 124const static struct scsi_format_page format_page_default = { 125 /*page_code*/SMS_FORMAT_DEVICE_PAGE, 126 /*page_length*/sizeof(struct scsi_format_page) - 2, 127 /*tracks_per_zone*/ {0, 0}, 128 /*alt_sectors_per_zone*/ {0, 0}, 129 /*alt_tracks_per_zone*/ {0, 0}, 130 /*alt_tracks_per_lun*/ {0, 0}, 131 /*sectors_per_track*/ {(CTL_DEFAULT_SECTORS_PER_TRACK >> 8) & 0xff, 132 CTL_DEFAULT_SECTORS_PER_TRACK & 0xff}, 133 /*bytes_per_sector*/ {0, 0}, 134 /*interleave*/ {0, 0}, 135 /*track_skew*/ {0, 0}, 136 /*cylinder_skew*/ {0, 0}, 137 /*flags*/ SFP_HSEC, 138 /*reserved*/ {0, 0, 0} 139}; 140 141const static struct scsi_format_page format_page_changeable = { 142 /*page_code*/SMS_FORMAT_DEVICE_PAGE, 143 /*page_length*/sizeof(struct scsi_format_page) - 2, 144 /*tracks_per_zone*/ {0, 0}, 145 /*alt_sectors_per_zone*/ {0, 0}, 146 /*alt_tracks_per_zone*/ {0, 0}, 147 /*alt_tracks_per_lun*/ {0, 0}, 148 /*sectors_per_track*/ {0, 0}, 149 /*bytes_per_sector*/ {0, 0}, 150 /*interleave*/ {0, 0}, 151 /*track_skew*/ {0, 0}, 152 /*cylinder_skew*/ {0, 0}, 153 /*flags*/ 0, 154 /*reserved*/ {0, 0, 0} 155}; 156 157const static struct scsi_rigid_disk_page rigid_disk_page_default = { 158 /*page_code*/SMS_RIGID_DISK_PAGE, 159 /*page_length*/sizeof(struct scsi_rigid_disk_page) - 2, 160 /*cylinders*/ {0, 0, 0}, 161 /*heads*/ CTL_DEFAULT_HEADS, 162 /*start_write_precomp*/ {0, 0, 0}, 163 /*start_reduced_current*/ {0, 0, 0}, 164 /*step_rate*/ {0, 0}, 165 /*landing_zone_cylinder*/ {0, 0, 0}, 166 /*rpl*/ SRDP_RPL_DISABLED, 167 /*rotational_offset*/ 0, 168 /*reserved1*/ 0, 169 /*rotation_rate*/ {(CTL_DEFAULT_ROTATION_RATE >> 8) & 0xff, 170 CTL_DEFAULT_ROTATION_RATE & 0xff}, 171 /*reserved2*/ {0, 0} 172}; 173 174const static struct scsi_rigid_disk_page rigid_disk_page_changeable = { 175 /*page_code*/SMS_RIGID_DISK_PAGE, 176 /*page_length*/sizeof(struct scsi_rigid_disk_page) - 2, 177 /*cylinders*/ {0, 0, 0}, 178 /*heads*/ 0, 179 /*start_write_precomp*/ {0, 0, 0}, 180 /*start_reduced_current*/ {0, 0, 0}, 181 /*step_rate*/ {0, 0}, 182 /*landing_zone_cylinder*/ {0, 0, 0}, 183 /*rpl*/ 0, 184 /*rotational_offset*/ 0, 185 /*reserved1*/ 0, 186 /*rotation_rate*/ {0, 0}, 187 /*reserved2*/ {0, 0} 188}; 189 190const static struct scsi_da_verify_recovery_page verify_er_page_default = { 191 /*page_code*/SMS_VERIFY_ERROR_RECOVERY_PAGE, 192 /*page_length*/sizeof(struct scsi_da_verify_recovery_page) - 2, 193 /*byte3*/0, 194 /*read_retry_count*/0, 195 /*reserved*/{ 0, 0, 0, 0, 0, 0 }, 196 /*recovery_time_limit*/{0, 0}, 197}; 198 199const static struct scsi_da_verify_recovery_page verify_er_page_changeable = { 200 /*page_code*/SMS_VERIFY_ERROR_RECOVERY_PAGE, 201 /*page_length*/sizeof(struct scsi_da_verify_recovery_page) - 2, 202 /*byte3*/SMS_VER_PER, 203 /*read_retry_count*/0, 204 /*reserved*/{ 0, 0, 0, 0, 0, 0 }, 205 /*recovery_time_limit*/{0, 0}, 206}; 207 208const static struct scsi_caching_page caching_page_default = { 209 /*page_code*/SMS_CACHING_PAGE, 210 /*page_length*/sizeof(struct scsi_caching_page) - 2, 211 /*flags1*/ SCP_DISC | SCP_WCE, 212 /*ret_priority*/ 0, 213 /*disable_pf_transfer_len*/ {0xff, 0xff}, 214 /*min_prefetch*/ {0, 0}, 215 /*max_prefetch*/ {0xff, 0xff}, 216 /*max_pf_ceiling*/ {0xff, 0xff}, 217 /*flags2*/ 0, 218 /*cache_segments*/ 0, 219 /*cache_seg_size*/ {0, 0}, 220 /*reserved*/ 0, 221 /*non_cache_seg_size*/ {0, 0, 0} 222}; 223 224const static struct scsi_caching_page caching_page_changeable = { 225 /*page_code*/SMS_CACHING_PAGE, 226 /*page_length*/sizeof(struct scsi_caching_page) - 2, 227 /*flags1*/ SCP_WCE | SCP_RCD, 228 /*ret_priority*/ 0, 229 /*disable_pf_transfer_len*/ {0, 0}, 230 /*min_prefetch*/ {0, 0}, 231 /*max_prefetch*/ {0, 0}, 232 /*max_pf_ceiling*/ {0, 0}, 233 /*flags2*/ 0, 234 /*cache_segments*/ 0, 235 /*cache_seg_size*/ {0, 0}, 236 /*reserved*/ 0, 237 /*non_cache_seg_size*/ {0, 0, 0} 238}; 239 240const static struct scsi_control_page control_page_default = { 241 /*page_code*/SMS_CONTROL_MODE_PAGE, 242 /*page_length*/sizeof(struct scsi_control_page) - 2, 243 /*rlec*/0, 244 /*queue_flags*/SCP_QUEUE_ALG_RESTRICTED, 245 /*eca_and_aen*/0, 246 /*flags4*/SCP_TAS, 247 /*aen_holdoff_period*/{0, 0}, 248 /*busy_timeout_period*/{0, 0}, 249 /*extended_selftest_completion_time*/{0, 0} 250}; 251 252const static struct scsi_control_page control_page_changeable = { 253 /*page_code*/SMS_CONTROL_MODE_PAGE, 254 /*page_length*/sizeof(struct scsi_control_page) - 2, 255 /*rlec*/SCP_DSENSE, 256 /*queue_flags*/SCP_QUEUE_ALG_MASK | SCP_NUAR, 257 /*eca_and_aen*/SCP_SWP, 258 /*flags4*/0, 259 /*aen_holdoff_period*/{0, 0}, 260 /*busy_timeout_period*/{0, 0}, 261 /*extended_selftest_completion_time*/{0, 0} 262}; 263 264#define CTL_CEM_LEN (sizeof(struct scsi_control_ext_page) - 4) 265 266const static struct scsi_control_ext_page control_ext_page_default = { 267 /*page_code*/SMS_CONTROL_MODE_PAGE | SMPH_SPF, 268 /*subpage_code*/0x01, 269 /*page_length*/{CTL_CEM_LEN >> 8, CTL_CEM_LEN}, 270 /*flags*/0, 271 /*prio*/0, 272 /*max_sense*/0 273}; 274 275const static struct scsi_control_ext_page control_ext_page_changeable = { 276 /*page_code*/SMS_CONTROL_MODE_PAGE | SMPH_SPF, 277 /*subpage_code*/0x01, 278 /*page_length*/{CTL_CEM_LEN >> 8, CTL_CEM_LEN}, 279 /*flags*/0, 280 /*prio*/0, 281 /*max_sense*/0xff 282}; 283 284const static struct scsi_info_exceptions_page ie_page_default = { 285 /*page_code*/SMS_INFO_EXCEPTIONS_PAGE, 286 /*page_length*/sizeof(struct scsi_info_exceptions_page) - 2, 287 /*info_flags*/SIEP_FLAGS_EWASC, 288 /*mrie*/SIEP_MRIE_NO, 289 /*interval_timer*/{0, 0, 0, 0}, 290 /*report_count*/{0, 0, 0, 1} 291}; 292 293const static struct scsi_info_exceptions_page ie_page_changeable = { 294 /*page_code*/SMS_INFO_EXCEPTIONS_PAGE, 295 /*page_length*/sizeof(struct scsi_info_exceptions_page) - 2, 296 /*info_flags*/SIEP_FLAGS_EWASC | SIEP_FLAGS_DEXCPT | SIEP_FLAGS_TEST | 297 SIEP_FLAGS_LOGERR, 298 /*mrie*/0x0f, 299 /*interval_timer*/{0xff, 0xff, 0xff, 0xff}, 300 /*report_count*/{0xff, 0xff, 0xff, 0xff} 301}; 302 303#define CTL_LBPM_LEN (sizeof(struct ctl_logical_block_provisioning_page) - 4) 304 305const static struct ctl_logical_block_provisioning_page lbp_page_default = {{ 306 /*page_code*/SMS_INFO_EXCEPTIONS_PAGE | SMPH_SPF, 307 /*subpage_code*/0x02, 308 /*page_length*/{CTL_LBPM_LEN >> 8, CTL_LBPM_LEN}, 309 /*flags*/0, 310 /*reserved*/{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}, 311 /*descr*/{}}, 312 {{/*flags*/0, 313 /*resource*/0x01, 314 /*reserved*/{0, 0}, 315 /*count*/{0, 0, 0, 0}}, 316 {/*flags*/0, 317 /*resource*/0x02, 318 /*reserved*/{0, 0}, 319 /*count*/{0, 0, 0, 0}}, 320 {/*flags*/0, 321 /*resource*/0xf1, 322 /*reserved*/{0, 0}, 323 /*count*/{0, 0, 0, 0}}, 324 {/*flags*/0, 325 /*resource*/0xf2, 326 /*reserved*/{0, 0}, 327 /*count*/{0, 0, 0, 0}} 328 } 329}; 330 331const static struct ctl_logical_block_provisioning_page lbp_page_changeable = {{ 332 /*page_code*/SMS_INFO_EXCEPTIONS_PAGE | SMPH_SPF, 333 /*subpage_code*/0x02, 334 /*page_length*/{CTL_LBPM_LEN >> 8, CTL_LBPM_LEN}, 335 /*flags*/SLBPP_SITUA, 336 /*reserved*/{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}, 337 /*descr*/{}}, 338 {{/*flags*/0, 339 /*resource*/0, 340 /*reserved*/{0, 0}, 341 /*count*/{0, 0, 0, 0}}, 342 {/*flags*/0, 343 /*resource*/0, 344 /*reserved*/{0, 0}, 345 /*count*/{0, 0, 0, 0}}, 346 {/*flags*/0, 347 /*resource*/0, 348 /*reserved*/{0, 0}, 349 /*count*/{0, 0, 0, 0}}, 350 {/*flags*/0, 351 /*resource*/0, 352 /*reserved*/{0, 0}, 353 /*count*/{0, 0, 0, 0}} 354 } 355}; 356 357const static struct scsi_cddvd_capabilities_page cddvd_page_default = { 358 /*page_code*/SMS_CDDVD_CAPS_PAGE, 359 /*page_length*/sizeof(struct scsi_cddvd_capabilities_page) - 2, 360 /*caps1*/0x3f, 361 /*caps2*/0x00, 362 /*caps3*/0xf0, 363 /*caps4*/0x00, 364 /*caps5*/0x29, 365 /*caps6*/0x00, 366 /*obsolete*/{0, 0}, 367 /*nvol_levels*/{0, 0}, 368 /*buffer_size*/{8, 0}, 369 /*obsolete2*/{0, 0}, 370 /*reserved*/0, 371 /*digital*/0, 372 /*obsolete3*/0, 373 /*copy_management*/0, 374 /*reserved2*/0, 375 /*rotation_control*/0, 376 /*cur_write_speed*/0, 377 /*num_speed_descr*/0, 378}; 379 380const static struct scsi_cddvd_capabilities_page cddvd_page_changeable = { 381 /*page_code*/SMS_CDDVD_CAPS_PAGE, 382 /*page_length*/sizeof(struct scsi_cddvd_capabilities_page) - 2, 383 /*caps1*/0, 384 /*caps2*/0, 385 /*caps3*/0, 386 /*caps4*/0, 387 /*caps5*/0, 388 /*caps6*/0, 389 /*obsolete*/{0, 0}, 390 /*nvol_levels*/{0, 0}, 391 /*buffer_size*/{0, 0}, 392 /*obsolete2*/{0, 0}, 393 /*reserved*/0, 394 /*digital*/0, 395 /*obsolete3*/0, 396 /*copy_management*/0, 397 /*reserved2*/0, 398 /*rotation_control*/0, 399 /*cur_write_speed*/0, 400 /*num_speed_descr*/0, 401}; 402 403SYSCTL_NODE(_kern_cam, OID_AUTO, ctl, CTLFLAG_RD, 0, "CAM Target Layer"); 404static int worker_threads = -1; 405TUNABLE_INT("kern.cam.ctl.worker_threads", &worker_threads); 406SYSCTL_INT(_kern_cam_ctl, OID_AUTO, worker_threads, CTLFLAG_RDTUN, 407 &worker_threads, 1, "Number of worker threads"); 408static int ctl_debug = CTL_DEBUG_NONE; 409TUNABLE_INT("kern.cam.ctl.debug", &ctl_debug); 410SYSCTL_INT(_kern_cam_ctl, OID_AUTO, debug, CTLFLAG_RWTUN, 411 &ctl_debug, 0, "Enabled debug flags"); 412static int ctl_lun_map_size = 1024; 413SYSCTL_INT(_kern_cam_ctl, OID_AUTO, lun_map_size, CTLFLAG_RWTUN, 414 &ctl_lun_map_size, 0, "Size of per-port LUN map (max LUN + 1)"); 415 416/* 417 * Supported pages (0x00), Serial number (0x80), Device ID (0x83), 418 * Extended INQUIRY Data (0x86), Mode Page Policy (0x87), 419 * SCSI Ports (0x88), Third-party Copy (0x8F), Block limits (0xB0), 420 * Block Device Characteristics (0xB1) and Logical Block Provisioning (0xB2) 421 */ 422#define SCSI_EVPD_NUM_SUPPORTED_PAGES 10 423 424static void ctl_isc_event_handler(ctl_ha_channel chanel, ctl_ha_event event, 425 int param); 426static void ctl_copy_sense_data(union ctl_ha_msg *src, union ctl_io *dest); 427static void ctl_copy_sense_data_back(union ctl_io *src, union ctl_ha_msg *dest); 428static int ctl_init(void); 429void ctl_shutdown(void); 430static int ctl_open(struct cdev *dev, int flags, int fmt, struct thread *td); 431static int ctl_close(struct cdev *dev, int flags, int fmt, struct thread *td); 432static void ctl_serialize_other_sc_cmd(struct ctl_scsiio *ctsio); 433static void ctl_ioctl_fill_ooa(struct ctl_lun *lun, uint32_t *cur_fill_num, 434 struct ctl_ooa *ooa_hdr, 435 struct ctl_ooa_entry *kern_entries); 436static int ctl_ioctl(struct cdev *dev, u_long cmd, caddr_t addr, int flag, 437 struct thread *td); 438static int ctl_alloc_lun(struct ctl_softc *ctl_softc, struct ctl_lun *lun, 439 struct ctl_be_lun *be_lun); 440static int ctl_free_lun(struct ctl_lun *lun); 441static void ctl_create_lun(struct ctl_be_lun *be_lun); 442 443static int ctl_do_mode_select(union ctl_io *io); 444static int ctl_pro_preempt(struct ctl_softc *softc, struct ctl_lun *lun, 445 uint64_t res_key, uint64_t sa_res_key, 446 uint8_t type, uint32_t residx, 447 struct ctl_scsiio *ctsio, 448 struct scsi_per_res_out *cdb, 449 struct scsi_per_res_out_parms* param); 450static void ctl_pro_preempt_other(struct ctl_lun *lun, 451 union ctl_ha_msg *msg); 452static void ctl_hndl_per_res_out_on_other_sc(union ctl_io *io); 453static int ctl_inquiry_evpd_supported(struct ctl_scsiio *ctsio, int alloc_len); 454static int ctl_inquiry_evpd_serial(struct ctl_scsiio *ctsio, int alloc_len); 455static int ctl_inquiry_evpd_devid(struct ctl_scsiio *ctsio, int alloc_len); 456static int ctl_inquiry_evpd_eid(struct ctl_scsiio *ctsio, int alloc_len); 457static int ctl_inquiry_evpd_mpp(struct ctl_scsiio *ctsio, int alloc_len); 458static int ctl_inquiry_evpd_scsi_ports(struct ctl_scsiio *ctsio, 459 int alloc_len); 460static int ctl_inquiry_evpd_block_limits(struct ctl_scsiio *ctsio, 461 int alloc_len); 462static int ctl_inquiry_evpd_bdc(struct ctl_scsiio *ctsio, int alloc_len); 463static int ctl_inquiry_evpd_lbp(struct ctl_scsiio *ctsio, int alloc_len); 464static int ctl_inquiry_evpd(struct ctl_scsiio *ctsio); 465static int ctl_inquiry_std(struct ctl_scsiio *ctsio); 466static int ctl_get_lba_len(union ctl_io *io, uint64_t *lba, uint64_t *len); 467static ctl_action ctl_extent_check(union ctl_io *io1, union ctl_io *io2, 468 bool seq); 469static ctl_action ctl_extent_check_seq(union ctl_io *io1, union ctl_io *io2); 470static ctl_action ctl_check_for_blockage(struct ctl_lun *lun, 471 union ctl_io *pending_io, union ctl_io *ooa_io); 472static ctl_action ctl_check_ooa(struct ctl_lun *lun, union ctl_io *pending_io, 473 union ctl_io *starting_io); 474static int ctl_check_blocked(struct ctl_lun *lun); 475static int ctl_scsiio_lun_check(struct ctl_lun *lun, 476 const struct ctl_cmd_entry *entry, 477 struct ctl_scsiio *ctsio); 478static void ctl_failover_lun(union ctl_io *io); 479static int ctl_scsiio_precheck(struct ctl_softc *ctl_softc, 480 struct ctl_scsiio *ctsio); 481static int ctl_scsiio(struct ctl_scsiio *ctsio); 482 483static int ctl_bus_reset(struct ctl_softc *ctl_softc, union ctl_io *io); 484static int ctl_target_reset(struct ctl_softc *ctl_softc, union ctl_io *io, 485 ctl_ua_type ua_type); 486static int ctl_do_lun_reset(struct ctl_lun *lun, union ctl_io *io, 487 ctl_ua_type ua_type); 488static int ctl_lun_reset(struct ctl_softc *ctl_softc, union ctl_io *io); 489static int ctl_abort_task(union ctl_io *io); 490static int ctl_abort_task_set(union ctl_io *io); 491static int ctl_query_task(union ctl_io *io, int task_set); 492static int ctl_i_t_nexus_reset(union ctl_io *io); 493static int ctl_query_async_event(union ctl_io *io); 494static void ctl_run_task(union ctl_io *io); 495#ifdef CTL_IO_DELAY 496static void ctl_datamove_timer_wakeup(void *arg); 497static void ctl_done_timer_wakeup(void *arg); 498#endif /* CTL_IO_DELAY */ 499 500static void ctl_send_datamove_done(union ctl_io *io, int have_lock); 501static void ctl_datamove_remote_write_cb(struct ctl_ha_dt_req *rq); 502static int ctl_datamove_remote_dm_write_cb(union ctl_io *io); 503static void ctl_datamove_remote_write(union ctl_io *io); 504static int ctl_datamove_remote_dm_read_cb(union ctl_io *io); 505static void ctl_datamove_remote_read_cb(struct ctl_ha_dt_req *rq); 506static int ctl_datamove_remote_sgl_setup(union ctl_io *io); 507static int ctl_datamove_remote_xfer(union ctl_io *io, unsigned command, 508 ctl_ha_dt_cb callback); 509static void ctl_datamove_remote_read(union ctl_io *io); 510static void ctl_datamove_remote(union ctl_io *io); 511static void ctl_process_done(union ctl_io *io); 512static void ctl_lun_thread(void *arg); 513static void ctl_thresh_thread(void *arg); 514static void ctl_work_thread(void *arg); 515static void ctl_enqueue_incoming(union ctl_io *io); 516static void ctl_enqueue_rtr(union ctl_io *io); 517static void ctl_enqueue_done(union ctl_io *io); 518static void ctl_enqueue_isc(union ctl_io *io); 519static const struct ctl_cmd_entry * 520 ctl_get_cmd_entry(struct ctl_scsiio *ctsio, int *sa); 521static const struct ctl_cmd_entry * 522 ctl_validate_command(struct ctl_scsiio *ctsio); 523static int ctl_cmd_applicable(uint8_t lun_type, 524 const struct ctl_cmd_entry *entry); 525 526static uint64_t ctl_get_prkey(struct ctl_lun *lun, uint32_t residx); 527static void ctl_clr_prkey(struct ctl_lun *lun, uint32_t residx); 528static void ctl_alloc_prkey(struct ctl_lun *lun, uint32_t residx); 529static void ctl_set_prkey(struct ctl_lun *lun, uint32_t residx, uint64_t key); 530 531/* 532 * Load the serialization table. This isn't very pretty, but is probably 533 * the easiest way to do it. 534 */ 535#include "ctl_ser_table.c" 536 537/* 538 * We only need to define open, close and ioctl routines for this driver. 539 */ 540static struct cdevsw ctl_cdevsw = { 541 .d_version = D_VERSION, 542 .d_flags = 0, 543 .d_open = ctl_open, 544 .d_close = ctl_close, 545 .d_ioctl = ctl_ioctl, 546 .d_name = "ctl", 547}; 548 549 550MALLOC_DEFINE(M_CTL, "ctlmem", "Memory used for CTL"); 551 552static int ctl_module_event_handler(module_t, int /*modeventtype_t*/, void *); 553 554static moduledata_t ctl_moduledata = { 555 "ctl", 556 ctl_module_event_handler, 557 NULL 558}; 559 560DECLARE_MODULE(ctl, ctl_moduledata, SI_SUB_CONFIGURE, SI_ORDER_THIRD); 561MODULE_VERSION(ctl, 1); 562 563static struct ctl_frontend ha_frontend = 564{ 565 .name = "ha", 566}; 567 568static void 569ctl_ha_datamove(union ctl_io *io) 570{ 571 struct ctl_lun *lun = CTL_LUN(io); 572 struct ctl_sg_entry *sgl; 573 union ctl_ha_msg msg; 574 uint32_t sg_entries_sent; 575 int do_sg_copy, i, j; 576 577 memset(&msg.dt, 0, sizeof(msg.dt)); 578 msg.hdr.msg_type = CTL_MSG_DATAMOVE; 579 msg.hdr.original_sc = io->io_hdr.original_sc; 580 msg.hdr.serializing_sc = io; 581 msg.hdr.nexus = io->io_hdr.nexus; 582 msg.hdr.status = io->io_hdr.status; 583 msg.dt.flags = io->io_hdr.flags; 584 585 /* 586 * We convert everything into a S/G list here. We can't 587 * pass by reference, only by value between controllers. 588 * So we can't pass a pointer to the S/G list, only as many 589 * S/G entries as we can fit in here. If it's possible for 590 * us to get more than CTL_HA_MAX_SG_ENTRIES S/G entries, 591 * then we need to break this up into multiple transfers. 592 */ 593 if (io->scsiio.kern_sg_entries == 0) { 594 msg.dt.kern_sg_entries = 1; 595#if 0 596 if (io->io_hdr.flags & CTL_FLAG_BUS_ADDR) { 597 msg.dt.sg_list[0].addr = io->scsiio.kern_data_ptr; 598 } else { 599 /* XXX KDM use busdma here! */ 600 msg.dt.sg_list[0].addr = 601 (void *)vtophys(io->scsiio.kern_data_ptr); 602 } 603#else 604 KASSERT((io->io_hdr.flags & CTL_FLAG_BUS_ADDR) == 0, 605 ("HA does not support BUS_ADDR")); 606 msg.dt.sg_list[0].addr = io->scsiio.kern_data_ptr; 607#endif 608 msg.dt.sg_list[0].len = io->scsiio.kern_data_len; 609 do_sg_copy = 0; 610 } else { 611 msg.dt.kern_sg_entries = io->scsiio.kern_sg_entries; 612 do_sg_copy = 1; 613 } 614 615 msg.dt.kern_data_len = io->scsiio.kern_data_len; 616 msg.dt.kern_total_len = io->scsiio.kern_total_len; 617 msg.dt.kern_data_resid = io->scsiio.kern_data_resid; 618 msg.dt.kern_rel_offset = io->scsiio.kern_rel_offset; 619 msg.dt.sg_sequence = 0; 620 621 /* 622 * Loop until we've sent all of the S/G entries. On the 623 * other end, we'll recompose these S/G entries into one 624 * contiguous list before processing. 625 */ 626 for (sg_entries_sent = 0; sg_entries_sent < msg.dt.kern_sg_entries; 627 msg.dt.sg_sequence++) { 628 msg.dt.cur_sg_entries = MIN((sizeof(msg.dt.sg_list) / 629 sizeof(msg.dt.sg_list[0])), 630 msg.dt.kern_sg_entries - sg_entries_sent); 631 if (do_sg_copy != 0) { 632 sgl = (struct ctl_sg_entry *)io->scsiio.kern_data_ptr; 633 for (i = sg_entries_sent, j = 0; 634 i < msg.dt.cur_sg_entries; i++, j++) { 635#if 0 636 if (io->io_hdr.flags & CTL_FLAG_BUS_ADDR) { 637 msg.dt.sg_list[j].addr = sgl[i].addr; 638 } else { 639 /* XXX KDM use busdma here! */ 640 msg.dt.sg_list[j].addr = 641 (void *)vtophys(sgl[i].addr); 642 } 643#else 644 KASSERT((io->io_hdr.flags & 645 CTL_FLAG_BUS_ADDR) == 0, 646 ("HA does not support BUS_ADDR")); 647 msg.dt.sg_list[j].addr = sgl[i].addr; 648#endif 649 msg.dt.sg_list[j].len = sgl[i].len; 650 } 651 } 652 653 sg_entries_sent += msg.dt.cur_sg_entries; 654 msg.dt.sg_last = (sg_entries_sent >= msg.dt.kern_sg_entries); 655 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, 656 sizeof(msg.dt) - sizeof(msg.dt.sg_list) + 657 sizeof(struct ctl_sg_entry) * msg.dt.cur_sg_entries, 658 M_WAITOK) > CTL_HA_STATUS_SUCCESS) { 659 io->io_hdr.port_status = 31341; 660 io->scsiio.be_move_done(io); 661 return; 662 } 663 msg.dt.sent_sg_entries = sg_entries_sent; 664 } 665 666 /* 667 * Officially handover the request from us to peer. 668 * If failover has just happened, then we must return error. 669 * If failover happen just after, then it is not our problem. 670 */ 671 if (lun) 672 mtx_lock(&lun->lun_lock); 673 if (io->io_hdr.flags & CTL_FLAG_FAILOVER) { 674 if (lun) 675 mtx_unlock(&lun->lun_lock); 676 io->io_hdr.port_status = 31342; 677 io->scsiio.be_move_done(io); 678 return; 679 } 680 io->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 681 io->io_hdr.flags |= CTL_FLAG_DMA_INPROG; 682 if (lun) 683 mtx_unlock(&lun->lun_lock); 684} 685 686static void 687ctl_ha_done(union ctl_io *io) 688{ 689 union ctl_ha_msg msg; 690 691 if (io->io_hdr.io_type == CTL_IO_SCSI) { 692 memset(&msg, 0, sizeof(msg)); 693 msg.hdr.msg_type = CTL_MSG_FINISH_IO; 694 msg.hdr.original_sc = io->io_hdr.original_sc; 695 msg.hdr.nexus = io->io_hdr.nexus; 696 msg.hdr.status = io->io_hdr.status; 697 msg.scsi.scsi_status = io->scsiio.scsi_status; 698 msg.scsi.tag_num = io->scsiio.tag_num; 699 msg.scsi.tag_type = io->scsiio.tag_type; 700 msg.scsi.sense_len = io->scsiio.sense_len; 701 msg.scsi.sense_residual = io->scsiio.sense_residual; 702 msg.scsi.residual = io->scsiio.residual; 703 memcpy(&msg.scsi.sense_data, &io->scsiio.sense_data, 704 io->scsiio.sense_len); 705 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, 706 sizeof(msg.scsi) - sizeof(msg.scsi.sense_data) + 707 msg.scsi.sense_len, M_WAITOK); 708 } 709 ctl_free_io(io); 710} 711 712static void 713ctl_isc_handler_finish_xfer(struct ctl_softc *ctl_softc, 714 union ctl_ha_msg *msg_info) 715{ 716 struct ctl_scsiio *ctsio; 717 718 if (msg_info->hdr.original_sc == NULL) { 719 printf("%s: original_sc == NULL!\n", __func__); 720 /* XXX KDM now what? */ 721 return; 722 } 723 724 ctsio = &msg_info->hdr.original_sc->scsiio; 725 ctsio->io_hdr.flags |= CTL_FLAG_IO_ACTIVE; 726 ctsio->io_hdr.msg_type = CTL_MSG_FINISH_IO; 727 ctsio->io_hdr.status = msg_info->hdr.status; 728 ctsio->scsi_status = msg_info->scsi.scsi_status; 729 ctsio->sense_len = msg_info->scsi.sense_len; 730 ctsio->sense_residual = msg_info->scsi.sense_residual; 731 ctsio->residual = msg_info->scsi.residual; 732 memcpy(&ctsio->sense_data, &msg_info->scsi.sense_data, 733 msg_info->scsi.sense_len); 734 ctl_enqueue_isc((union ctl_io *)ctsio); 735} 736 737static void 738ctl_isc_handler_finish_ser_only(struct ctl_softc *ctl_softc, 739 union ctl_ha_msg *msg_info) 740{ 741 struct ctl_scsiio *ctsio; 742 743 if (msg_info->hdr.serializing_sc == NULL) { 744 printf("%s: serializing_sc == NULL!\n", __func__); 745 /* XXX KDM now what? */ 746 return; 747 } 748 749 ctsio = &msg_info->hdr.serializing_sc->scsiio; 750 ctsio->io_hdr.msg_type = CTL_MSG_FINISH_IO; 751 ctl_enqueue_isc((union ctl_io *)ctsio); 752} 753 754void 755ctl_isc_announce_lun(struct ctl_lun *lun) 756{ 757 struct ctl_softc *softc = lun->ctl_softc; 758 union ctl_ha_msg *msg; 759 struct ctl_ha_msg_lun_pr_key pr_key; 760 int i, k; 761 762 if (softc->ha_link != CTL_HA_LINK_ONLINE) 763 return; 764 mtx_lock(&lun->lun_lock); 765 i = sizeof(msg->lun); 766 if (lun->lun_devid) 767 i += lun->lun_devid->len; 768 i += sizeof(pr_key) * lun->pr_key_count; 769alloc: 770 mtx_unlock(&lun->lun_lock); 771 msg = malloc(i, M_CTL, M_WAITOK); 772 mtx_lock(&lun->lun_lock); 773 k = sizeof(msg->lun); 774 if (lun->lun_devid) 775 k += lun->lun_devid->len; 776 k += sizeof(pr_key) * lun->pr_key_count; 777 if (i < k) { 778 free(msg, M_CTL); 779 i = k; 780 goto alloc; 781 } 782 bzero(&msg->lun, sizeof(msg->lun)); 783 msg->hdr.msg_type = CTL_MSG_LUN_SYNC; 784 msg->hdr.nexus.targ_lun = lun->lun; 785 msg->hdr.nexus.targ_mapped_lun = lun->lun; 786 msg->lun.flags = lun->flags; 787 msg->lun.pr_generation = lun->pr_generation; 788 msg->lun.pr_res_idx = lun->pr_res_idx; 789 msg->lun.pr_res_type = lun->pr_res_type; 790 msg->lun.pr_key_count = lun->pr_key_count; 791 i = 0; 792 if (lun->lun_devid) { 793 msg->lun.lun_devid_len = lun->lun_devid->len; 794 memcpy(&msg->lun.data[i], lun->lun_devid->data, 795 msg->lun.lun_devid_len); 796 i += msg->lun.lun_devid_len; 797 } 798 for (k = 0; k < CTL_MAX_INITIATORS; k++) { 799 if ((pr_key.pr_key = ctl_get_prkey(lun, k)) == 0) 800 continue; 801 pr_key.pr_iid = k; 802 memcpy(&msg->lun.data[i], &pr_key, sizeof(pr_key)); 803 i += sizeof(pr_key); 804 } 805 mtx_unlock(&lun->lun_lock); 806 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg->port, sizeof(msg->port) + i, 807 M_WAITOK); 808 free(msg, M_CTL); 809 810 if (lun->flags & CTL_LUN_PRIMARY_SC) { 811 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 812 ctl_isc_announce_mode(lun, -1, 813 lun->mode_pages.index[i].page_code & SMPH_PC_MASK, 814 lun->mode_pages.index[i].subpage); 815 } 816 } 817} 818 819void 820ctl_isc_announce_port(struct ctl_port *port) 821{ 822 struct ctl_softc *softc = port->ctl_softc; 823 union ctl_ha_msg *msg; 824 int i; 825 826 if (port->targ_port < softc->port_min || 827 port->targ_port >= softc->port_max || 828 softc->ha_link != CTL_HA_LINK_ONLINE) 829 return; 830 i = sizeof(msg->port) + strlen(port->port_name) + 1; 831 if (port->lun_map) 832 i += port->lun_map_size * sizeof(uint32_t); 833 if (port->port_devid) 834 i += port->port_devid->len; 835 if (port->target_devid) 836 i += port->target_devid->len; 837 if (port->init_devid) 838 i += port->init_devid->len; 839 msg = malloc(i, M_CTL, M_WAITOK); 840 bzero(&msg->port, sizeof(msg->port)); 841 msg->hdr.msg_type = CTL_MSG_PORT_SYNC; 842 msg->hdr.nexus.targ_port = port->targ_port; 843 msg->port.port_type = port->port_type; 844 msg->port.physical_port = port->physical_port; 845 msg->port.virtual_port = port->virtual_port; 846 msg->port.status = port->status; 847 i = 0; 848 msg->port.name_len = sprintf(&msg->port.data[i], 849 "%d:%s", softc->ha_id, port->port_name) + 1; 850 i += msg->port.name_len; 851 if (port->lun_map) { 852 msg->port.lun_map_len = port->lun_map_size * sizeof(uint32_t); 853 memcpy(&msg->port.data[i], port->lun_map, 854 msg->port.lun_map_len); 855 i += msg->port.lun_map_len; 856 } 857 if (port->port_devid) { 858 msg->port.port_devid_len = port->port_devid->len; 859 memcpy(&msg->port.data[i], port->port_devid->data, 860 msg->port.port_devid_len); 861 i += msg->port.port_devid_len; 862 } 863 if (port->target_devid) { 864 msg->port.target_devid_len = port->target_devid->len; 865 memcpy(&msg->port.data[i], port->target_devid->data, 866 msg->port.target_devid_len); 867 i += msg->port.target_devid_len; 868 } 869 if (port->init_devid) { 870 msg->port.init_devid_len = port->init_devid->len; 871 memcpy(&msg->port.data[i], port->init_devid->data, 872 msg->port.init_devid_len); 873 i += msg->port.init_devid_len; 874 } 875 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg->port, sizeof(msg->port) + i, 876 M_WAITOK); 877 free(msg, M_CTL); 878} 879 880void 881ctl_isc_announce_iid(struct ctl_port *port, int iid) 882{ 883 struct ctl_softc *softc = port->ctl_softc; 884 union ctl_ha_msg *msg; 885 int i, l; 886 887 if (port->targ_port < softc->port_min || 888 port->targ_port >= softc->port_max || 889 softc->ha_link != CTL_HA_LINK_ONLINE) 890 return; 891 mtx_lock(&softc->ctl_lock); 892 i = sizeof(msg->iid); 893 l = 0; 894 if (port->wwpn_iid[iid].name) 895 l = strlen(port->wwpn_iid[iid].name) + 1; 896 i += l; 897 msg = malloc(i, M_CTL, M_NOWAIT); 898 if (msg == NULL) { 899 mtx_unlock(&softc->ctl_lock); 900 return; 901 } 902 bzero(&msg->iid, sizeof(msg->iid)); 903 msg->hdr.msg_type = CTL_MSG_IID_SYNC; 904 msg->hdr.nexus.targ_port = port->targ_port; 905 msg->hdr.nexus.initid = iid; 906 msg->iid.in_use = port->wwpn_iid[iid].in_use; 907 msg->iid.name_len = l; 908 msg->iid.wwpn = port->wwpn_iid[iid].wwpn; 909 if (port->wwpn_iid[iid].name) 910 strlcpy(msg->iid.data, port->wwpn_iid[iid].name, l); 911 mtx_unlock(&softc->ctl_lock); 912 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg->iid, i, M_NOWAIT); 913 free(msg, M_CTL); 914} 915 916void 917ctl_isc_announce_mode(struct ctl_lun *lun, uint32_t initidx, 918 uint8_t page, uint8_t subpage) 919{ 920 struct ctl_softc *softc = lun->ctl_softc; 921 union ctl_ha_msg msg; 922 u_int i; 923 924 if (softc->ha_link != CTL_HA_LINK_ONLINE) 925 return; 926 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 927 if ((lun->mode_pages.index[i].page_code & SMPH_PC_MASK) == 928 page && lun->mode_pages.index[i].subpage == subpage) 929 break; 930 } 931 if (i == CTL_NUM_MODE_PAGES) 932 return; 933 934 /* Don't try to replicate pages not present on this device. */ 935 if (lun->mode_pages.index[i].page_data == NULL) 936 return; 937 938 bzero(&msg.mode, sizeof(msg.mode)); 939 msg.hdr.msg_type = CTL_MSG_MODE_SYNC; 940 msg.hdr.nexus.targ_port = initidx / CTL_MAX_INIT_PER_PORT; 941 msg.hdr.nexus.initid = initidx % CTL_MAX_INIT_PER_PORT; 942 msg.hdr.nexus.targ_lun = lun->lun; 943 msg.hdr.nexus.targ_mapped_lun = lun->lun; 944 msg.mode.page_code = page; 945 msg.mode.subpage = subpage; 946 msg.mode.page_len = lun->mode_pages.index[i].page_len; 947 memcpy(msg.mode.data, lun->mode_pages.index[i].page_data, 948 msg.mode.page_len); 949 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg.mode, sizeof(msg.mode), 950 M_WAITOK); 951} 952 953static void 954ctl_isc_ha_link_up(struct ctl_softc *softc) 955{ 956 struct ctl_port *port; 957 struct ctl_lun *lun; 958 union ctl_ha_msg msg; 959 int i; 960 961 /* Announce this node parameters to peer for validation. */ 962 msg.login.msg_type = CTL_MSG_LOGIN; 963 msg.login.version = CTL_HA_VERSION; 964 msg.login.ha_mode = softc->ha_mode; 965 msg.login.ha_id = softc->ha_id; 966 msg.login.max_luns = CTL_MAX_LUNS; 967 msg.login.max_ports = CTL_MAX_PORTS; 968 msg.login.max_init_per_port = CTL_MAX_INIT_PER_PORT; 969 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg.login, sizeof(msg.login), 970 M_WAITOK); 971 972 STAILQ_FOREACH(port, &softc->port_list, links) { 973 ctl_isc_announce_port(port); 974 for (i = 0; i < CTL_MAX_INIT_PER_PORT; i++) { 975 if (port->wwpn_iid[i].in_use) 976 ctl_isc_announce_iid(port, i); 977 } 978 } 979 STAILQ_FOREACH(lun, &softc->lun_list, links) 980 ctl_isc_announce_lun(lun); 981} 982 983static void 984ctl_isc_ha_link_down(struct ctl_softc *softc) 985{ 986 struct ctl_port *port; 987 struct ctl_lun *lun; 988 union ctl_io *io; 989 int i; 990 991 mtx_lock(&softc->ctl_lock); 992 STAILQ_FOREACH(lun, &softc->lun_list, links) { 993 mtx_lock(&lun->lun_lock); 994 if (lun->flags & CTL_LUN_PEER_SC_PRIMARY) { 995 lun->flags &= ~CTL_LUN_PEER_SC_PRIMARY; 996 ctl_est_ua_all(lun, -1, CTL_UA_ASYM_ACC_CHANGE); 997 } 998 mtx_unlock(&lun->lun_lock); 999 1000 mtx_unlock(&softc->ctl_lock); 1001 io = ctl_alloc_io(softc->othersc_pool); 1002 mtx_lock(&softc->ctl_lock); 1003 ctl_zero_io(io); 1004 io->io_hdr.msg_type = CTL_MSG_FAILOVER; 1005 io->io_hdr.nexus.targ_mapped_lun = lun->lun; 1006 ctl_enqueue_isc(io); 1007 } 1008 1009 STAILQ_FOREACH(port, &softc->port_list, links) { 1010 if (port->targ_port >= softc->port_min && 1011 port->targ_port < softc->port_max) 1012 continue; 1013 port->status &= ~CTL_PORT_STATUS_ONLINE; 1014 for (i = 0; i < CTL_MAX_INIT_PER_PORT; i++) { 1015 port->wwpn_iid[i].in_use = 0; 1016 free(port->wwpn_iid[i].name, M_CTL); 1017 port->wwpn_iid[i].name = NULL; 1018 } 1019 } 1020 mtx_unlock(&softc->ctl_lock); 1021} 1022 1023static void 1024ctl_isc_ua(struct ctl_softc *softc, union ctl_ha_msg *msg, int len) 1025{ 1026 struct ctl_lun *lun; 1027 uint32_t iid = ctl_get_initindex(&msg->hdr.nexus); 1028 1029 mtx_lock(&softc->ctl_lock); 1030 if (msg->hdr.nexus.targ_mapped_lun >= CTL_MAX_LUNS || 1031 (lun = softc->ctl_luns[msg->hdr.nexus.targ_mapped_lun]) == NULL) { 1032 mtx_unlock(&softc->ctl_lock); 1033 return; 1034 } 1035 mtx_lock(&lun->lun_lock); 1036 mtx_unlock(&softc->ctl_lock); 1037 if (msg->ua.ua_type == CTL_UA_THIN_PROV_THRES && msg->ua.ua_set) 1038 memcpy(lun->ua_tpt_info, msg->ua.ua_info, 8); 1039 if (msg->ua.ua_all) { 1040 if (msg->ua.ua_set) 1041 ctl_est_ua_all(lun, iid, msg->ua.ua_type); 1042 else 1043 ctl_clr_ua_all(lun, iid, msg->ua.ua_type); 1044 } else { 1045 if (msg->ua.ua_set) 1046 ctl_est_ua(lun, iid, msg->ua.ua_type); 1047 else 1048 ctl_clr_ua(lun, iid, msg->ua.ua_type); 1049 } 1050 mtx_unlock(&lun->lun_lock); 1051} 1052 1053static void 1054ctl_isc_lun_sync(struct ctl_softc *softc, union ctl_ha_msg *msg, int len) 1055{ 1056 struct ctl_lun *lun; 1057 struct ctl_ha_msg_lun_pr_key pr_key; 1058 int i, k; 1059 ctl_lun_flags oflags; 1060 uint32_t targ_lun; 1061 1062 targ_lun = msg->hdr.nexus.targ_mapped_lun; 1063 mtx_lock(&softc->ctl_lock); 1064 if (targ_lun >= CTL_MAX_LUNS || 1065 (lun = softc->ctl_luns[targ_lun]) == NULL) { 1066 mtx_unlock(&softc->ctl_lock); 1067 return; 1068 } 1069 mtx_lock(&lun->lun_lock); 1070 mtx_unlock(&softc->ctl_lock); 1071 if (lun->flags & CTL_LUN_DISABLED) { 1072 mtx_unlock(&lun->lun_lock); 1073 return; 1074 } 1075 i = (lun->lun_devid != NULL) ? lun->lun_devid->len : 0; 1076 if (msg->lun.lun_devid_len != i || (i > 0 && 1077 memcmp(&msg->lun.data[0], lun->lun_devid->data, i) != 0)) { 1078 mtx_unlock(&lun->lun_lock); 1079 printf("%s: Received conflicting HA LUN %d\n", 1080 __func__, targ_lun); 1081 return; 1082 } else { 1083 /* Record whether peer is primary. */ 1084 oflags = lun->flags; 1085 if ((msg->lun.flags & CTL_LUN_PRIMARY_SC) && 1086 (msg->lun.flags & CTL_LUN_DISABLED) == 0) 1087 lun->flags |= CTL_LUN_PEER_SC_PRIMARY; 1088 else 1089 lun->flags &= ~CTL_LUN_PEER_SC_PRIMARY; 1090 if (oflags != lun->flags) 1091 ctl_est_ua_all(lun, -1, CTL_UA_ASYM_ACC_CHANGE); 1092 1093 /* If peer is primary and we are not -- use data */ 1094 if ((lun->flags & CTL_LUN_PRIMARY_SC) == 0 && 1095 (lun->flags & CTL_LUN_PEER_SC_PRIMARY)) { 1096 lun->pr_generation = msg->lun.pr_generation; 1097 lun->pr_res_idx = msg->lun.pr_res_idx; 1098 lun->pr_res_type = msg->lun.pr_res_type; 1099 lun->pr_key_count = msg->lun.pr_key_count; 1100 for (k = 0; k < CTL_MAX_INITIATORS; k++) 1101 ctl_clr_prkey(lun, k); 1102 for (k = 0; k < msg->lun.pr_key_count; k++) { 1103 memcpy(&pr_key, &msg->lun.data[i], 1104 sizeof(pr_key)); 1105 ctl_alloc_prkey(lun, pr_key.pr_iid); 1106 ctl_set_prkey(lun, pr_key.pr_iid, 1107 pr_key.pr_key); 1108 i += sizeof(pr_key); 1109 } 1110 } 1111 1112 mtx_unlock(&lun->lun_lock); 1113 CTL_DEBUG_PRINT(("%s: Known LUN %d, peer is %s\n", 1114 __func__, targ_lun, 1115 (msg->lun.flags & CTL_LUN_PRIMARY_SC) ? 1116 "primary" : "secondary")); 1117 1118 /* If we are primary but peer doesn't know -- notify */ 1119 if ((lun->flags & CTL_LUN_PRIMARY_SC) && 1120 (msg->lun.flags & CTL_LUN_PEER_SC_PRIMARY) == 0) 1121 ctl_isc_announce_lun(lun); 1122 } 1123} 1124 1125static void 1126ctl_isc_port_sync(struct ctl_softc *softc, union ctl_ha_msg *msg, int len) 1127{ 1128 struct ctl_port *port; 1129 struct ctl_lun *lun; 1130 int i, new; 1131 1132 port = softc->ctl_ports[msg->hdr.nexus.targ_port]; 1133 if (port == NULL) { 1134 CTL_DEBUG_PRINT(("%s: New port %d\n", __func__, 1135 msg->hdr.nexus.targ_port)); 1136 new = 1; 1137 port = malloc(sizeof(*port), M_CTL, M_WAITOK | M_ZERO); 1138 port->frontend = &ha_frontend; 1139 port->targ_port = msg->hdr.nexus.targ_port; 1140 port->fe_datamove = ctl_ha_datamove; 1141 port->fe_done = ctl_ha_done; 1142 } else if (port->frontend == &ha_frontend) { 1143 CTL_DEBUG_PRINT(("%s: Updated port %d\n", __func__, 1144 msg->hdr.nexus.targ_port)); 1145 new = 0; 1146 } else { 1147 printf("%s: Received conflicting HA port %d\n", 1148 __func__, msg->hdr.nexus.targ_port); 1149 return; 1150 } 1151 port->port_type = msg->port.port_type; 1152 port->physical_port = msg->port.physical_port; 1153 port->virtual_port = msg->port.virtual_port; 1154 port->status = msg->port.status; 1155 i = 0; 1156 free(port->port_name, M_CTL); 1157 port->port_name = strndup(&msg->port.data[i], msg->port.name_len, 1158 M_CTL); 1159 i += msg->port.name_len; 1160 if (msg->port.lun_map_len != 0) { 1161 if (port->lun_map == NULL || 1162 port->lun_map_size * sizeof(uint32_t) < 1163 msg->port.lun_map_len) { 1164 port->lun_map_size = 0; 1165 free(port->lun_map, M_CTL); 1166 port->lun_map = malloc(msg->port.lun_map_len, 1167 M_CTL, M_WAITOK); 1168 } 1169 memcpy(port->lun_map, &msg->port.data[i], msg->port.lun_map_len); 1170 port->lun_map_size = msg->port.lun_map_len / sizeof(uint32_t); 1171 i += msg->port.lun_map_len; 1172 } else { 1173 port->lun_map_size = 0; 1174 free(port->lun_map, M_CTL); 1175 port->lun_map = NULL; 1176 } 1177 if (msg->port.port_devid_len != 0) { 1178 if (port->port_devid == NULL || 1179 port->port_devid->len < msg->port.port_devid_len) { 1180 free(port->port_devid, M_CTL); 1181 port->port_devid = malloc(sizeof(struct ctl_devid) + 1182 msg->port.port_devid_len, M_CTL, M_WAITOK); 1183 } 1184 memcpy(port->port_devid->data, &msg->port.data[i], 1185 msg->port.port_devid_len); 1186 port->port_devid->len = msg->port.port_devid_len; 1187 i += msg->port.port_devid_len; 1188 } else { 1189 free(port->port_devid, M_CTL); 1190 port->port_devid = NULL; 1191 } 1192 if (msg->port.target_devid_len != 0) { 1193 if (port->target_devid == NULL || 1194 port->target_devid->len < msg->port.target_devid_len) { 1195 free(port->target_devid, M_CTL); 1196 port->target_devid = malloc(sizeof(struct ctl_devid) + 1197 msg->port.target_devid_len, M_CTL, M_WAITOK); 1198 } 1199 memcpy(port->target_devid->data, &msg->port.data[i], 1200 msg->port.target_devid_len); 1201 port->target_devid->len = msg->port.target_devid_len; 1202 i += msg->port.target_devid_len; 1203 } else { 1204 free(port->target_devid, M_CTL); 1205 port->target_devid = NULL; 1206 } 1207 if (msg->port.init_devid_len != 0) { 1208 if (port->init_devid == NULL || 1209 port->init_devid->len < msg->port.init_devid_len) { 1210 free(port->init_devid, M_CTL); 1211 port->init_devid = malloc(sizeof(struct ctl_devid) + 1212 msg->port.init_devid_len, M_CTL, M_WAITOK); 1213 } 1214 memcpy(port->init_devid->data, &msg->port.data[i], 1215 msg->port.init_devid_len); 1216 port->init_devid->len = msg->port.init_devid_len; 1217 i += msg->port.init_devid_len; 1218 } else { 1219 free(port->init_devid, M_CTL); 1220 port->init_devid = NULL; 1221 } 1222 if (new) { 1223 if (ctl_port_register(port) != 0) { 1224 printf("%s: ctl_port_register() failed with error\n", 1225 __func__); 1226 } 1227 } 1228 mtx_lock(&softc->ctl_lock); 1229 STAILQ_FOREACH(lun, &softc->lun_list, links) { 1230 if (ctl_lun_map_to_port(port, lun->lun) == UINT32_MAX) 1231 continue; 1232 mtx_lock(&lun->lun_lock); 1233 ctl_est_ua_all(lun, -1, CTL_UA_INQ_CHANGE); 1234 mtx_unlock(&lun->lun_lock); 1235 } 1236 mtx_unlock(&softc->ctl_lock); 1237} 1238 1239static void 1240ctl_isc_iid_sync(struct ctl_softc *softc, union ctl_ha_msg *msg, int len) 1241{ 1242 struct ctl_port *port; 1243 int iid; 1244 1245 port = softc->ctl_ports[msg->hdr.nexus.targ_port]; 1246 if (port == NULL) { 1247 printf("%s: Received IID for unknown port %d\n", 1248 __func__, msg->hdr.nexus.targ_port); 1249 return; 1250 } 1251 iid = msg->hdr.nexus.initid; 1252 port->wwpn_iid[iid].in_use = msg->iid.in_use; 1253 port->wwpn_iid[iid].wwpn = msg->iid.wwpn; 1254 free(port->wwpn_iid[iid].name, M_CTL); 1255 if (msg->iid.name_len) { 1256 port->wwpn_iid[iid].name = strndup(&msg->iid.data[0], 1257 msg->iid.name_len, M_CTL); 1258 } else 1259 port->wwpn_iid[iid].name = NULL; 1260} 1261 1262static void 1263ctl_isc_login(struct ctl_softc *softc, union ctl_ha_msg *msg, int len) 1264{ 1265 1266 if (msg->login.version != CTL_HA_VERSION) { 1267 printf("CTL HA peers have different versions %d != %d\n", 1268 msg->login.version, CTL_HA_VERSION); 1269 ctl_ha_msg_abort(CTL_HA_CHAN_CTL); 1270 return; 1271 } 1272 if (msg->login.ha_mode != softc->ha_mode) { 1273 printf("CTL HA peers have different ha_mode %d != %d\n", 1274 msg->login.ha_mode, softc->ha_mode); 1275 ctl_ha_msg_abort(CTL_HA_CHAN_CTL); 1276 return; 1277 } 1278 if (msg->login.ha_id == softc->ha_id) { 1279 printf("CTL HA peers have same ha_id %d\n", msg->login.ha_id); 1280 ctl_ha_msg_abort(CTL_HA_CHAN_CTL); 1281 return; 1282 } 1283 if (msg->login.max_luns != CTL_MAX_LUNS || 1284 msg->login.max_ports != CTL_MAX_PORTS || 1285 msg->login.max_init_per_port != CTL_MAX_INIT_PER_PORT) { 1286 printf("CTL HA peers have different limits\n"); 1287 ctl_ha_msg_abort(CTL_HA_CHAN_CTL); 1288 return; 1289 } 1290} 1291 1292static void 1293ctl_isc_mode_sync(struct ctl_softc *softc, union ctl_ha_msg *msg, int len) 1294{ 1295 struct ctl_lun *lun; 1296 u_int i; 1297 uint32_t initidx, targ_lun; 1298 1299 targ_lun = msg->hdr.nexus.targ_mapped_lun; 1300 mtx_lock(&softc->ctl_lock); 1301 if (targ_lun >= CTL_MAX_LUNS || 1302 (lun = softc->ctl_luns[targ_lun]) == NULL) { 1303 mtx_unlock(&softc->ctl_lock); 1304 return; 1305 } 1306 mtx_lock(&lun->lun_lock); 1307 mtx_unlock(&softc->ctl_lock); 1308 if (lun->flags & CTL_LUN_DISABLED) { 1309 mtx_unlock(&lun->lun_lock); 1310 return; 1311 } 1312 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 1313 if ((lun->mode_pages.index[i].page_code & SMPH_PC_MASK) == 1314 msg->mode.page_code && 1315 lun->mode_pages.index[i].subpage == msg->mode.subpage) 1316 break; 1317 } 1318 if (i == CTL_NUM_MODE_PAGES) { 1319 mtx_unlock(&lun->lun_lock); 1320 return; 1321 } 1322 memcpy(lun->mode_pages.index[i].page_data, msg->mode.data, 1323 lun->mode_pages.index[i].page_len); 1324 initidx = ctl_get_initindex(&msg->hdr.nexus); 1325 if (initidx != -1) 1326 ctl_est_ua_all(lun, initidx, CTL_UA_MODE_CHANGE); 1327 mtx_unlock(&lun->lun_lock); 1328} 1329 1330/* 1331 * ISC (Inter Shelf Communication) event handler. Events from the HA 1332 * subsystem come in here. 1333 */ 1334static void 1335ctl_isc_event_handler(ctl_ha_channel channel, ctl_ha_event event, int param) 1336{ 1337 struct ctl_softc *softc = control_softc; 1338 union ctl_io *io; 1339 struct ctl_prio *presio; 1340 ctl_ha_status isc_status; 1341 1342 CTL_DEBUG_PRINT(("CTL: Isc Msg event %d\n", event)); 1343 if (event == CTL_HA_EVT_MSG_RECV) { 1344 union ctl_ha_msg *msg, msgbuf; 1345 1346 if (param > sizeof(msgbuf)) 1347 msg = malloc(param, M_CTL, M_WAITOK); 1348 else 1349 msg = &msgbuf; 1350 isc_status = ctl_ha_msg_recv(CTL_HA_CHAN_CTL, msg, param, 1351 M_WAITOK); 1352 if (isc_status != CTL_HA_STATUS_SUCCESS) { 1353 printf("%s: Error receiving message: %d\n", 1354 __func__, isc_status); 1355 if (msg != &msgbuf) 1356 free(msg, M_CTL); 1357 return; 1358 } 1359 1360 CTL_DEBUG_PRINT(("CTL: msg_type %d\n", msg->msg_type)); 1361 switch (msg->hdr.msg_type) { 1362 case CTL_MSG_SERIALIZE: 1363 io = ctl_alloc_io(softc->othersc_pool); 1364 ctl_zero_io(io); 1365 // populate ctsio from msg 1366 io->io_hdr.io_type = CTL_IO_SCSI; 1367 io->io_hdr.msg_type = CTL_MSG_SERIALIZE; 1368 io->io_hdr.original_sc = msg->hdr.original_sc; 1369 io->io_hdr.flags |= CTL_FLAG_FROM_OTHER_SC | 1370 CTL_FLAG_IO_ACTIVE; 1371 /* 1372 * If we're in serialization-only mode, we don't 1373 * want to go through full done processing. Thus 1374 * the COPY flag. 1375 * 1376 * XXX KDM add another flag that is more specific. 1377 */ 1378 if (softc->ha_mode != CTL_HA_MODE_XFER) 1379 io->io_hdr.flags |= CTL_FLAG_INT_COPY; 1380 io->io_hdr.nexus = msg->hdr.nexus; 1381#if 0 1382 printf("port %u, iid %u, lun %u\n", 1383 io->io_hdr.nexus.targ_port, 1384 io->io_hdr.nexus.initid, 1385 io->io_hdr.nexus.targ_lun); 1386#endif 1387 io->scsiio.tag_num = msg->scsi.tag_num; 1388 io->scsiio.tag_type = msg->scsi.tag_type; 1389#ifdef CTL_TIME_IO 1390 io->io_hdr.start_time = time_uptime; 1391 getbinuptime(&io->io_hdr.start_bt); 1392#endif /* CTL_TIME_IO */ 1393 io->scsiio.cdb_len = msg->scsi.cdb_len; 1394 memcpy(io->scsiio.cdb, msg->scsi.cdb, 1395 CTL_MAX_CDBLEN); 1396 if (softc->ha_mode == CTL_HA_MODE_XFER) { 1397 const struct ctl_cmd_entry *entry; 1398 1399 entry = ctl_get_cmd_entry(&io->scsiio, NULL); 1400 io->io_hdr.flags &= ~CTL_FLAG_DATA_MASK; 1401 io->io_hdr.flags |= 1402 entry->flags & CTL_FLAG_DATA_MASK; 1403 } 1404 ctl_enqueue_isc(io); 1405 break; 1406 1407 /* Performed on the Originating SC, XFER mode only */ 1408 case CTL_MSG_DATAMOVE: { 1409 struct ctl_sg_entry *sgl; 1410 int i, j; 1411 1412 io = msg->hdr.original_sc; 1413 if (io == NULL) { 1414 printf("%s: original_sc == NULL!\n", __func__); 1415 /* XXX KDM do something here */ 1416 break; 1417 } 1418 io->io_hdr.msg_type = CTL_MSG_DATAMOVE; 1419 io->io_hdr.flags |= CTL_FLAG_IO_ACTIVE; 1420 /* 1421 * Keep track of this, we need to send it back over 1422 * when the datamove is complete. 1423 */ 1424 io->io_hdr.serializing_sc = msg->hdr.serializing_sc; 1425 if (msg->hdr.status == CTL_SUCCESS) 1426 io->io_hdr.status = msg->hdr.status; 1427 1428 if (msg->dt.sg_sequence == 0) { 1429#ifdef CTL_TIME_IO 1430 getbinuptime(&io->io_hdr.dma_start_bt); 1431#endif 1432 i = msg->dt.kern_sg_entries + 1433 msg->dt.kern_data_len / 1434 CTL_HA_DATAMOVE_SEGMENT + 1; 1435 sgl = malloc(sizeof(*sgl) * i, M_CTL, 1436 M_WAITOK | M_ZERO); 1437 io->io_hdr.remote_sglist = sgl; 1438 io->io_hdr.local_sglist = 1439 &sgl[msg->dt.kern_sg_entries]; 1440 1441 io->scsiio.kern_data_ptr = (uint8_t *)sgl; 1442 1443 io->scsiio.kern_sg_entries = 1444 msg->dt.kern_sg_entries; 1445 io->scsiio.rem_sg_entries = 1446 msg->dt.kern_sg_entries; 1447 io->scsiio.kern_data_len = 1448 msg->dt.kern_data_len; 1449 io->scsiio.kern_total_len = 1450 msg->dt.kern_total_len; 1451 io->scsiio.kern_data_resid = 1452 msg->dt.kern_data_resid; 1453 io->scsiio.kern_rel_offset = 1454 msg->dt.kern_rel_offset; 1455 io->io_hdr.flags &= ~CTL_FLAG_BUS_ADDR; 1456 io->io_hdr.flags |= msg->dt.flags & 1457 CTL_FLAG_BUS_ADDR; 1458 } else 1459 sgl = (struct ctl_sg_entry *) 1460 io->scsiio.kern_data_ptr; 1461 1462 for (i = msg->dt.sent_sg_entries, j = 0; 1463 i < (msg->dt.sent_sg_entries + 1464 msg->dt.cur_sg_entries); i++, j++) { 1465 sgl[i].addr = msg->dt.sg_list[j].addr; 1466 sgl[i].len = msg->dt.sg_list[j].len; 1467 1468#if 0 1469 printf("%s: DATAMOVE: %p,%lu j=%d, i=%d\n", 1470 __func__, sgl[i].addr, sgl[i].len, j, i); 1471#endif 1472 } 1473 1474 /* 1475 * If this is the last piece of the I/O, we've got 1476 * the full S/G list. Queue processing in the thread. 1477 * Otherwise wait for the next piece. 1478 */ 1479 if (msg->dt.sg_last != 0) 1480 ctl_enqueue_isc(io); 1481 break; 1482 } 1483 /* Performed on the Serializing (primary) SC, XFER mode only */ 1484 case CTL_MSG_DATAMOVE_DONE: { 1485 if (msg->hdr.serializing_sc == NULL) { 1486 printf("%s: serializing_sc == NULL!\n", 1487 __func__); 1488 /* XXX KDM now what? */ 1489 break; 1490 } 1491 /* 1492 * We grab the sense information here in case 1493 * there was a failure, so we can return status 1494 * back to the initiator. 1495 */ 1496 io = msg->hdr.serializing_sc; 1497 io->io_hdr.msg_type = CTL_MSG_DATAMOVE_DONE; 1498 io->io_hdr.flags &= ~CTL_FLAG_DMA_INPROG; 1499 io->io_hdr.flags |= CTL_FLAG_IO_ACTIVE; 1500 io->io_hdr.port_status = msg->scsi.fetd_status; 1501 io->scsiio.residual = msg->scsi.residual; 1502 if (msg->hdr.status != CTL_STATUS_NONE) { 1503 io->io_hdr.status = msg->hdr.status; 1504 io->scsiio.scsi_status = msg->scsi.scsi_status; 1505 io->scsiio.sense_len = msg->scsi.sense_len; 1506 io->scsiio.sense_residual =msg->scsi.sense_residual; 1507 memcpy(&io->scsiio.sense_data, 1508 &msg->scsi.sense_data, 1509 msg->scsi.sense_len); 1510 if (msg->hdr.status == CTL_SUCCESS) 1511 io->io_hdr.flags |= CTL_FLAG_STATUS_SENT; 1512 } 1513 ctl_enqueue_isc(io); 1514 break; 1515 } 1516 1517 /* Preformed on Originating SC, SER_ONLY mode */ 1518 case CTL_MSG_R2R: 1519 io = msg->hdr.original_sc; 1520 if (io == NULL) { 1521 printf("%s: original_sc == NULL!\n", 1522 __func__); 1523 break; 1524 } 1525 io->io_hdr.flags |= CTL_FLAG_IO_ACTIVE; 1526 io->io_hdr.msg_type = CTL_MSG_R2R; 1527 io->io_hdr.serializing_sc = msg->hdr.serializing_sc; 1528 ctl_enqueue_isc(io); 1529 break; 1530 1531 /* 1532 * Performed on Serializing(i.e. primary SC) SC in SER_ONLY 1533 * mode. 1534 * Performed on the Originating (i.e. secondary) SC in XFER 1535 * mode 1536 */ 1537 case CTL_MSG_FINISH_IO: 1538 if (softc->ha_mode == CTL_HA_MODE_XFER) 1539 ctl_isc_handler_finish_xfer(softc, msg); 1540 else 1541 ctl_isc_handler_finish_ser_only(softc, msg); 1542 break; 1543 1544 /* Preformed on Originating SC */ 1545 case CTL_MSG_BAD_JUJU: 1546 io = msg->hdr.original_sc; 1547 if (io == NULL) { 1548 printf("%s: Bad JUJU!, original_sc is NULL!\n", 1549 __func__); 1550 break; 1551 } 1552 ctl_copy_sense_data(msg, io); 1553 /* 1554 * IO should have already been cleaned up on other 1555 * SC so clear this flag so we won't send a message 1556 * back to finish the IO there. 1557 */ 1558 io->io_hdr.flags &= ~CTL_FLAG_SENT_2OTHER_SC; 1559 io->io_hdr.flags |= CTL_FLAG_IO_ACTIVE; 1560 1561 /* io = msg->hdr.serializing_sc; */ 1562 io->io_hdr.msg_type = CTL_MSG_BAD_JUJU; 1563 ctl_enqueue_isc(io); 1564 break; 1565 1566 /* Handle resets sent from the other side */ 1567 case CTL_MSG_MANAGE_TASKS: { 1568 struct ctl_taskio *taskio; 1569 taskio = (struct ctl_taskio *)ctl_alloc_io( 1570 softc->othersc_pool); 1571 ctl_zero_io((union ctl_io *)taskio); 1572 taskio->io_hdr.io_type = CTL_IO_TASK; 1573 taskio->io_hdr.flags |= CTL_FLAG_FROM_OTHER_SC; 1574 taskio->io_hdr.nexus = msg->hdr.nexus; 1575 taskio->task_action = msg->task.task_action; 1576 taskio->tag_num = msg->task.tag_num; 1577 taskio->tag_type = msg->task.tag_type; 1578#ifdef CTL_TIME_IO 1579 taskio->io_hdr.start_time = time_uptime; 1580 getbinuptime(&taskio->io_hdr.start_bt); 1581#endif /* CTL_TIME_IO */ 1582 ctl_run_task((union ctl_io *)taskio); 1583 break; 1584 } 1585 /* Persistent Reserve action which needs attention */ 1586 case CTL_MSG_PERS_ACTION: 1587 presio = (struct ctl_prio *)ctl_alloc_io( 1588 softc->othersc_pool); 1589 ctl_zero_io((union ctl_io *)presio); 1590 presio->io_hdr.msg_type = CTL_MSG_PERS_ACTION; 1591 presio->io_hdr.flags |= CTL_FLAG_FROM_OTHER_SC; 1592 presio->io_hdr.nexus = msg->hdr.nexus; 1593 presio->pr_msg = msg->pr; 1594 ctl_enqueue_isc((union ctl_io *)presio); 1595 break; 1596 case CTL_MSG_UA: 1597 ctl_isc_ua(softc, msg, param); 1598 break; 1599 case CTL_MSG_PORT_SYNC: 1600 ctl_isc_port_sync(softc, msg, param); 1601 break; 1602 case CTL_MSG_LUN_SYNC: 1603 ctl_isc_lun_sync(softc, msg, param); 1604 break; 1605 case CTL_MSG_IID_SYNC: 1606 ctl_isc_iid_sync(softc, msg, param); 1607 break; 1608 case CTL_MSG_LOGIN: 1609 ctl_isc_login(softc, msg, param); 1610 break; 1611 case CTL_MSG_MODE_SYNC: 1612 ctl_isc_mode_sync(softc, msg, param); 1613 break; 1614 default: 1615 printf("Received HA message of unknown type %d\n", 1616 msg->hdr.msg_type); 1617 ctl_ha_msg_abort(CTL_HA_CHAN_CTL); 1618 break; 1619 } 1620 if (msg != &msgbuf) 1621 free(msg, M_CTL); 1622 } else if (event == CTL_HA_EVT_LINK_CHANGE) { 1623 printf("CTL: HA link status changed from %d to %d\n", 1624 softc->ha_link, param); 1625 if (param == softc->ha_link) 1626 return; 1627 if (softc->ha_link == CTL_HA_LINK_ONLINE) { 1628 softc->ha_link = param; 1629 ctl_isc_ha_link_down(softc); 1630 } else { 1631 softc->ha_link = param; 1632 if (softc->ha_link == CTL_HA_LINK_ONLINE) 1633 ctl_isc_ha_link_up(softc); 1634 } 1635 return; 1636 } else { 1637 printf("ctl_isc_event_handler: Unknown event %d\n", event); 1638 return; 1639 } 1640} 1641 1642static void 1643ctl_copy_sense_data(union ctl_ha_msg *src, union ctl_io *dest) 1644{ 1645 1646 memcpy(&dest->scsiio.sense_data, &src->scsi.sense_data, 1647 src->scsi.sense_len); 1648 dest->scsiio.scsi_status = src->scsi.scsi_status; 1649 dest->scsiio.sense_len = src->scsi.sense_len; 1650 dest->io_hdr.status = src->hdr.status; 1651} 1652 1653static void 1654ctl_copy_sense_data_back(union ctl_io *src, union ctl_ha_msg *dest) 1655{ 1656 1657 memcpy(&dest->scsi.sense_data, &src->scsiio.sense_data, 1658 src->scsiio.sense_len); 1659 dest->scsi.scsi_status = src->scsiio.scsi_status; 1660 dest->scsi.sense_len = src->scsiio.sense_len; 1661 dest->hdr.status = src->io_hdr.status; 1662} 1663 1664void 1665ctl_est_ua(struct ctl_lun *lun, uint32_t initidx, ctl_ua_type ua) 1666{ 1667 struct ctl_softc *softc = lun->ctl_softc; 1668 ctl_ua_type *pu; 1669 1670 if (initidx < softc->init_min || initidx >= softc->init_max) 1671 return; 1672 mtx_assert(&lun->lun_lock, MA_OWNED); 1673 pu = lun->pending_ua[initidx / CTL_MAX_INIT_PER_PORT]; 1674 if (pu == NULL) 1675 return; 1676 pu[initidx % CTL_MAX_INIT_PER_PORT] |= ua; 1677} 1678 1679void 1680ctl_est_ua_port(struct ctl_lun *lun, int port, uint32_t except, ctl_ua_type ua) 1681{ 1682 int i; 1683 1684 mtx_assert(&lun->lun_lock, MA_OWNED); 1685 if (lun->pending_ua[port] == NULL) 1686 return; 1687 for (i = 0; i < CTL_MAX_INIT_PER_PORT; i++) { 1688 if (port * CTL_MAX_INIT_PER_PORT + i == except) 1689 continue; 1690 lun->pending_ua[port][i] |= ua; 1691 } 1692} 1693 1694void 1695ctl_est_ua_all(struct ctl_lun *lun, uint32_t except, ctl_ua_type ua) 1696{ 1697 struct ctl_softc *softc = lun->ctl_softc; 1698 int i; 1699 1700 mtx_assert(&lun->lun_lock, MA_OWNED); 1701 for (i = softc->port_min; i < softc->port_max; i++) 1702 ctl_est_ua_port(lun, i, except, ua); 1703} 1704 1705void 1706ctl_clr_ua(struct ctl_lun *lun, uint32_t initidx, ctl_ua_type ua) 1707{ 1708 struct ctl_softc *softc = lun->ctl_softc; 1709 ctl_ua_type *pu; 1710 1711 if (initidx < softc->init_min || initidx >= softc->init_max) 1712 return; 1713 mtx_assert(&lun->lun_lock, MA_OWNED); 1714 pu = lun->pending_ua[initidx / CTL_MAX_INIT_PER_PORT]; 1715 if (pu == NULL) 1716 return; 1717 pu[initidx % CTL_MAX_INIT_PER_PORT] &= ~ua; 1718} 1719 1720void 1721ctl_clr_ua_all(struct ctl_lun *lun, uint32_t except, ctl_ua_type ua) 1722{ 1723 struct ctl_softc *softc = lun->ctl_softc; 1724 int i, j; 1725 1726 mtx_assert(&lun->lun_lock, MA_OWNED); 1727 for (i = softc->port_min; i < softc->port_max; i++) { 1728 if (lun->pending_ua[i] == NULL) 1729 continue; 1730 for (j = 0; j < CTL_MAX_INIT_PER_PORT; j++) { 1731 if (i * CTL_MAX_INIT_PER_PORT + j == except) 1732 continue; 1733 lun->pending_ua[i][j] &= ~ua; 1734 } 1735 } 1736} 1737 1738void 1739ctl_clr_ua_allluns(struct ctl_softc *ctl_softc, uint32_t initidx, 1740 ctl_ua_type ua_type) 1741{ 1742 struct ctl_lun *lun; 1743 1744 mtx_assert(&ctl_softc->ctl_lock, MA_OWNED); 1745 STAILQ_FOREACH(lun, &ctl_softc->lun_list, links) { 1746 mtx_lock(&lun->lun_lock); 1747 ctl_clr_ua(lun, initidx, ua_type); 1748 mtx_unlock(&lun->lun_lock); 1749 } 1750} 1751 1752static int 1753ctl_ha_role_sysctl(SYSCTL_HANDLER_ARGS) 1754{ 1755 struct ctl_softc *softc = (struct ctl_softc *)arg1; 1756 struct ctl_lun *lun; 1757 struct ctl_lun_req ireq; 1758 int error, value; 1759 1760 value = (softc->flags & CTL_FLAG_ACTIVE_SHELF) ? 0 : 1; 1761 error = sysctl_handle_int(oidp, &value, 0, req); 1762 if ((error != 0) || (req->newptr == NULL)) 1763 return (error); 1764 1765 mtx_lock(&softc->ctl_lock); 1766 if (value == 0) 1767 softc->flags |= CTL_FLAG_ACTIVE_SHELF; 1768 else 1769 softc->flags &= ~CTL_FLAG_ACTIVE_SHELF; 1770 STAILQ_FOREACH(lun, &softc->lun_list, links) { 1771 mtx_unlock(&softc->ctl_lock); 1772 bzero(&ireq, sizeof(ireq)); 1773 ireq.reqtype = CTL_LUNREQ_MODIFY; 1774 ireq.reqdata.modify.lun_id = lun->lun; 1775 lun->backend->ioctl(NULL, CTL_LUN_REQ, (caddr_t)&ireq, 0, 1776 curthread); 1777 if (ireq.status != CTL_LUN_OK) { 1778 printf("%s: CTL_LUNREQ_MODIFY returned %d '%s'\n", 1779 __func__, ireq.status, ireq.error_str); 1780 } 1781 mtx_lock(&softc->ctl_lock); 1782 } 1783 mtx_unlock(&softc->ctl_lock); 1784 return (0); 1785} 1786 1787static int 1788ctl_init(void) 1789{ 1790 struct make_dev_args args; 1791 struct ctl_softc *softc; 1792 void *other_pool; 1793 int i, error; 1794 1795 softc = control_softc = malloc(sizeof(*control_softc), M_DEVBUF, 1796 M_WAITOK | M_ZERO); 1797 1798 make_dev_args_init(&args); 1799 args.mda_devsw = &ctl_cdevsw; 1800 args.mda_uid = UID_ROOT; 1801 args.mda_gid = GID_OPERATOR; 1802 args.mda_mode = 0600; 1803 args.mda_si_drv1 = softc; 1804 error = make_dev_s(&args, &softc->dev, "cam/ctl"); 1805 if (error != 0) { 1806 free(softc, M_DEVBUF); 1807 control_softc = NULL; 1808 return (error); 1809 } 1810 1811 sysctl_ctx_init(&softc->sysctl_ctx); 1812 softc->sysctl_tree = SYSCTL_ADD_NODE(&softc->sysctl_ctx, 1813 SYSCTL_STATIC_CHILDREN(_kern_cam), OID_AUTO, "ctl", 1814 CTLFLAG_RD, 0, "CAM Target Layer"); 1815 1816 if (softc->sysctl_tree == NULL) { 1817 printf("%s: unable to allocate sysctl tree\n", __func__); 1818 destroy_dev(softc->dev); 1819 free(softc, M_DEVBUF); 1820 control_softc = NULL; 1821 return (ENOMEM); 1822 } 1823 1824 mtx_init(&softc->ctl_lock, "CTL mutex", NULL, MTX_DEF); 1825 softc->io_zone = uma_zcreate("CTL IO", sizeof(union ctl_io), 1826 NULL, NULL, NULL, NULL, UMA_ALIGN_PTR, 0); 1827 softc->flags = 0; 1828 1829 TUNABLE_INT_FETCH("kern.cam.ctl.ha_mode", (int *)&softc->ha_mode); 1830 SYSCTL_ADD_INT(&softc->sysctl_ctx, SYSCTL_CHILDREN(softc->sysctl_tree), 1831 OID_AUTO, "ha_mode", CTLFLAG_RDTUN, (int *)&softc->ha_mode, 0, 1832 "HA mode (0 - act/stby, 1 - serialize only, 2 - xfer)"); 1833 1834 /* 1835 * In Copan's HA scheme, the "master" and "slave" roles are 1836 * figured out through the slot the controller is in. Although it 1837 * is an active/active system, someone has to be in charge. 1838 */ 1839 TUNABLE_INT_FETCH("kern.cam.ctl.ha_id", &softc->ha_id); 1840 SYSCTL_ADD_INT(&softc->sysctl_ctx, SYSCTL_CHILDREN(softc->sysctl_tree), 1841 OID_AUTO, "ha_id", CTLFLAG_RDTUN, &softc->ha_id, 0, 1842 "HA head ID (0 - no HA)"); 1843 if (softc->ha_id == 0 || softc->ha_id > NUM_HA_SHELVES) { 1844 softc->flags |= CTL_FLAG_ACTIVE_SHELF; 1845 softc->is_single = 1; 1846 softc->port_cnt = CTL_MAX_PORTS; 1847 softc->port_min = 0; 1848 } else { 1849 softc->port_cnt = CTL_MAX_PORTS / NUM_HA_SHELVES; 1850 softc->port_min = (softc->ha_id - 1) * softc->port_cnt; 1851 } 1852 softc->port_max = softc->port_min + softc->port_cnt; 1853 softc->init_min = softc->port_min * CTL_MAX_INIT_PER_PORT; 1854 softc->init_max = softc->port_max * CTL_MAX_INIT_PER_PORT; 1855 1856 SYSCTL_ADD_INT(&softc->sysctl_ctx, SYSCTL_CHILDREN(softc->sysctl_tree), 1857 OID_AUTO, "ha_link", CTLFLAG_RD, (int *)&softc->ha_link, 0, 1858 "HA link state (0 - offline, 1 - unknown, 2 - online)"); 1859 1860 STAILQ_INIT(&softc->lun_list); 1861 STAILQ_INIT(&softc->pending_lun_queue); 1862 STAILQ_INIT(&softc->fe_list); 1863 STAILQ_INIT(&softc->port_list); 1864 STAILQ_INIT(&softc->be_list); 1865 ctl_tpc_init(softc); 1866 1867 if (ctl_pool_create(softc, "othersc", CTL_POOL_ENTRIES_OTHER_SC, 1868 &other_pool) != 0) 1869 { 1870 printf("ctl: can't allocate %d entry other SC pool, " 1871 "exiting\n", CTL_POOL_ENTRIES_OTHER_SC); 1872 return (ENOMEM); 1873 } 1874 softc->othersc_pool = other_pool; 1875 1876 if (worker_threads <= 0) 1877 worker_threads = max(1, mp_ncpus / 4); 1878 if (worker_threads > CTL_MAX_THREADS) 1879 worker_threads = CTL_MAX_THREADS; 1880 1881 for (i = 0; i < worker_threads; i++) { 1882 struct ctl_thread *thr = &softc->threads[i]; 1883 1884 mtx_init(&thr->queue_lock, "CTL queue mutex", NULL, MTX_DEF); 1885 thr->ctl_softc = softc; 1886 STAILQ_INIT(&thr->incoming_queue); 1887 STAILQ_INIT(&thr->rtr_queue); 1888 STAILQ_INIT(&thr->done_queue); 1889 STAILQ_INIT(&thr->isc_queue); 1890 1891 error = kproc_kthread_add(ctl_work_thread, thr, 1892 &softc->ctl_proc, &thr->thread, 0, 0, "ctl", "work%d", i); 1893 if (error != 0) { 1894 printf("error creating CTL work thread!\n"); 1895 ctl_pool_free(other_pool); 1896 return (error); 1897 } 1898 } 1899 error = kproc_kthread_add(ctl_lun_thread, softc, 1900 &softc->ctl_proc, NULL, 0, 0, "ctl", "lun"); 1901 if (error != 0) { 1902 printf("error creating CTL lun thread!\n"); 1903 ctl_pool_free(other_pool); 1904 return (error); 1905 } 1906 error = kproc_kthread_add(ctl_thresh_thread, softc, 1907 &softc->ctl_proc, NULL, 0, 0, "ctl", "thresh"); 1908 if (error != 0) { 1909 printf("error creating CTL threshold thread!\n"); 1910 ctl_pool_free(other_pool); 1911 return (error); 1912 } 1913 1914 SYSCTL_ADD_PROC(&softc->sysctl_ctx,SYSCTL_CHILDREN(softc->sysctl_tree), 1915 OID_AUTO, "ha_role", CTLTYPE_INT | CTLFLAG_RWTUN, 1916 softc, 0, ctl_ha_role_sysctl, "I", "HA role for this head"); 1917 1918 if (softc->is_single == 0) { 1919 ctl_frontend_register(&ha_frontend); 1920 if (ctl_ha_msg_init(softc) != CTL_HA_STATUS_SUCCESS) { 1921 printf("ctl_init: ctl_ha_msg_init failed.\n"); 1922 softc->is_single = 1; 1923 } else 1924 if (ctl_ha_msg_register(CTL_HA_CHAN_CTL, ctl_isc_event_handler) 1925 != CTL_HA_STATUS_SUCCESS) { 1926 printf("ctl_init: ctl_ha_msg_register failed.\n"); 1927 softc->is_single = 1; 1928 } 1929 } 1930 return (0); 1931} 1932 1933void 1934ctl_shutdown(void) 1935{ 1936 struct ctl_softc *softc = control_softc; 1937 struct ctl_lun *lun, *next_lun; 1938 1939 if (softc->is_single == 0) { 1940 ctl_ha_msg_shutdown(softc); 1941 if (ctl_ha_msg_deregister(CTL_HA_CHAN_CTL) 1942 != CTL_HA_STATUS_SUCCESS) 1943 printf("%s: ctl_ha_msg_deregister failed.\n", __func__); 1944 if (ctl_ha_msg_destroy(softc) != CTL_HA_STATUS_SUCCESS) 1945 printf("%s: ctl_ha_msg_destroy failed.\n", __func__); 1946 ctl_frontend_deregister(&ha_frontend); 1947 } 1948 1949 mtx_lock(&softc->ctl_lock); 1950 1951 STAILQ_FOREACH_SAFE(lun, &softc->lun_list, links, next_lun) 1952 ctl_free_lun(lun); 1953 1954 mtx_unlock(&softc->ctl_lock); 1955 1956#if 0 1957 ctl_shutdown_thread(softc->work_thread); 1958 mtx_destroy(&softc->queue_lock); 1959#endif 1960 1961 ctl_tpc_shutdown(softc); 1962 uma_zdestroy(softc->io_zone); 1963 mtx_destroy(&softc->ctl_lock); 1964 1965 destroy_dev(softc->dev); 1966 1967 sysctl_ctx_free(&softc->sysctl_ctx); 1968 1969 free(softc, M_DEVBUF); 1970 control_softc = NULL; 1971} 1972 1973static int 1974ctl_module_event_handler(module_t mod, int what, void *arg) 1975{ 1976 1977 switch (what) { 1978 case MOD_LOAD: 1979 return (ctl_init()); 1980 case MOD_UNLOAD: 1981 return (EBUSY); 1982 default: 1983 return (EOPNOTSUPP); 1984 } 1985} 1986 1987/* 1988 * XXX KDM should we do some access checks here? Bump a reference count to 1989 * prevent a CTL module from being unloaded while someone has it open? 1990 */ 1991static int 1992ctl_open(struct cdev *dev, int flags, int fmt, struct thread *td) 1993{ 1994 return (0); 1995} 1996 1997static int 1998ctl_close(struct cdev *dev, int flags, int fmt, struct thread *td) 1999{ 2000 return (0); 2001} 2002 2003/* 2004 * Remove an initiator by port number and initiator ID. 2005 * Returns 0 for success, -1 for failure. 2006 */ 2007int 2008ctl_remove_initiator(struct ctl_port *port, int iid) 2009{ 2010 struct ctl_softc *softc = port->ctl_softc; 2011 2012 mtx_assert(&softc->ctl_lock, MA_NOTOWNED); 2013 2014 if (iid > CTL_MAX_INIT_PER_PORT) { 2015 printf("%s: initiator ID %u > maximun %u!\n", 2016 __func__, iid, CTL_MAX_INIT_PER_PORT); 2017 return (-1); 2018 } 2019 2020 mtx_lock(&softc->ctl_lock); 2021 port->wwpn_iid[iid].in_use--; 2022 port->wwpn_iid[iid].last_use = time_uptime; 2023 mtx_unlock(&softc->ctl_lock); 2024 ctl_isc_announce_iid(port, iid); 2025 2026 return (0); 2027} 2028 2029/* 2030 * Add an initiator to the initiator map. 2031 * Returns iid for success, < 0 for failure. 2032 */ 2033int 2034ctl_add_initiator(struct ctl_port *port, int iid, uint64_t wwpn, char *name) 2035{ 2036 struct ctl_softc *softc = port->ctl_softc; 2037 time_t best_time; 2038 int i, best; 2039 2040 mtx_assert(&softc->ctl_lock, MA_NOTOWNED); 2041 2042 if (iid >= CTL_MAX_INIT_PER_PORT) { 2043 printf("%s: WWPN %#jx initiator ID %u > maximum %u!\n", 2044 __func__, wwpn, iid, CTL_MAX_INIT_PER_PORT); 2045 free(name, M_CTL); 2046 return (-1); 2047 } 2048 2049 mtx_lock(&softc->ctl_lock); 2050 2051 if (iid < 0 && (wwpn != 0 || name != NULL)) { 2052 for (i = 0; i < CTL_MAX_INIT_PER_PORT; i++) { 2053 if (wwpn != 0 && wwpn == port->wwpn_iid[i].wwpn) { 2054 iid = i; 2055 break; 2056 } 2057 if (name != NULL && port->wwpn_iid[i].name != NULL && 2058 strcmp(name, port->wwpn_iid[i].name) == 0) { 2059 iid = i; 2060 break; 2061 } 2062 } 2063 } 2064 2065 if (iid < 0) { 2066 for (i = 0; i < CTL_MAX_INIT_PER_PORT; i++) { 2067 if (port->wwpn_iid[i].in_use == 0 && 2068 port->wwpn_iid[i].wwpn == 0 && 2069 port->wwpn_iid[i].name == NULL) { 2070 iid = i; 2071 break; 2072 } 2073 } 2074 } 2075 2076 if (iid < 0) { 2077 best = -1; 2078 best_time = INT32_MAX; 2079 for (i = 0; i < CTL_MAX_INIT_PER_PORT; i++) { 2080 if (port->wwpn_iid[i].in_use == 0) { 2081 if (port->wwpn_iid[i].last_use < best_time) { 2082 best = i; 2083 best_time = port->wwpn_iid[i].last_use; 2084 } 2085 } 2086 } 2087 iid = best; 2088 } 2089 2090 if (iid < 0) { 2091 mtx_unlock(&softc->ctl_lock); 2092 free(name, M_CTL); 2093 return (-2); 2094 } 2095 2096 if (port->wwpn_iid[iid].in_use > 0 && (wwpn != 0 || name != NULL)) { 2097 /* 2098 * This is not an error yet. 2099 */ 2100 if (wwpn != 0 && wwpn == port->wwpn_iid[iid].wwpn) { 2101#if 0 2102 printf("%s: port %d iid %u WWPN %#jx arrived" 2103 " again\n", __func__, port->targ_port, 2104 iid, (uintmax_t)wwpn); 2105#endif 2106 goto take; 2107 } 2108 if (name != NULL && port->wwpn_iid[iid].name != NULL && 2109 strcmp(name, port->wwpn_iid[iid].name) == 0) { 2110#if 0 2111 printf("%s: port %d iid %u name '%s' arrived" 2112 " again\n", __func__, port->targ_port, 2113 iid, name); 2114#endif 2115 goto take; 2116 } 2117 2118 /* 2119 * This is an error, but what do we do about it? The 2120 * driver is telling us we have a new WWPN for this 2121 * initiator ID, so we pretty much need to use it. 2122 */ 2123 printf("%s: port %d iid %u WWPN %#jx '%s' arrived," 2124 " but WWPN %#jx '%s' is still at that address\n", 2125 __func__, port->targ_port, iid, wwpn, name, 2126 (uintmax_t)port->wwpn_iid[iid].wwpn, 2127 port->wwpn_iid[iid].name); 2128 2129 /* 2130 * XXX KDM clear have_ca and ua_pending on each LUN for 2131 * this initiator. 2132 */ 2133 } 2134take: 2135 free(port->wwpn_iid[iid].name, M_CTL); 2136 port->wwpn_iid[iid].name = name; 2137 port->wwpn_iid[iid].wwpn = wwpn; 2138 port->wwpn_iid[iid].in_use++; 2139 mtx_unlock(&softc->ctl_lock); 2140 ctl_isc_announce_iid(port, iid); 2141 2142 return (iid); 2143} 2144 2145static int 2146ctl_create_iid(struct ctl_port *port, int iid, uint8_t *buf) 2147{ 2148 int len; 2149 2150 switch (port->port_type) { 2151 case CTL_PORT_FC: 2152 { 2153 struct scsi_transportid_fcp *id = 2154 (struct scsi_transportid_fcp *)buf; 2155 if (port->wwpn_iid[iid].wwpn == 0) 2156 return (0); 2157 memset(id, 0, sizeof(*id)); 2158 id->format_protocol = SCSI_PROTO_FC; 2159 scsi_u64to8b(port->wwpn_iid[iid].wwpn, id->n_port_name); 2160 return (sizeof(*id)); 2161 } 2162 case CTL_PORT_ISCSI: 2163 { 2164 struct scsi_transportid_iscsi_port *id = 2165 (struct scsi_transportid_iscsi_port *)buf; 2166 if (port->wwpn_iid[iid].name == NULL) 2167 return (0); 2168 memset(id, 0, 256); 2169 id->format_protocol = SCSI_TRN_ISCSI_FORMAT_PORT | 2170 SCSI_PROTO_ISCSI; 2171 len = strlcpy(id->iscsi_name, port->wwpn_iid[iid].name, 252) + 1; 2172 len = roundup2(min(len, 252), 4); 2173 scsi_ulto2b(len, id->additional_length); 2174 return (sizeof(*id) + len); 2175 } 2176 case CTL_PORT_SAS: 2177 { 2178 struct scsi_transportid_sas *id = 2179 (struct scsi_transportid_sas *)buf; 2180 if (port->wwpn_iid[iid].wwpn == 0) 2181 return (0); 2182 memset(id, 0, sizeof(*id)); 2183 id->format_protocol = SCSI_PROTO_SAS; 2184 scsi_u64to8b(port->wwpn_iid[iid].wwpn, id->sas_address); 2185 return (sizeof(*id)); 2186 } 2187 default: 2188 { 2189 struct scsi_transportid_spi *id = 2190 (struct scsi_transportid_spi *)buf; 2191 memset(id, 0, sizeof(*id)); 2192 id->format_protocol = SCSI_PROTO_SPI; 2193 scsi_ulto2b(iid, id->scsi_addr); 2194 scsi_ulto2b(port->targ_port, id->rel_trgt_port_id); 2195 return (sizeof(*id)); 2196 } 2197 } 2198} 2199 2200/* 2201 * Serialize a command that went down the "wrong" side, and so was sent to 2202 * this controller for execution. The logic is a little different than the 2203 * standard case in ctl_scsiio_precheck(). Errors in this case need to get 2204 * sent back to the other side, but in the success case, we execute the 2205 * command on this side (XFER mode) or tell the other side to execute it 2206 * (SER_ONLY mode). 2207 */ 2208static void 2209ctl_serialize_other_sc_cmd(struct ctl_scsiio *ctsio) 2210{ 2211 struct ctl_softc *softc = CTL_SOFTC(ctsio); 2212 struct ctl_port *port = CTL_PORT(ctsio); 2213 union ctl_ha_msg msg_info; 2214 struct ctl_lun *lun; 2215 const struct ctl_cmd_entry *entry; 2216 uint32_t targ_lun; 2217 2218 targ_lun = ctsio->io_hdr.nexus.targ_mapped_lun; 2219 2220 /* Make sure that we know about this port. */ 2221 if (port == NULL || (port->status & CTL_PORT_STATUS_ONLINE) == 0) { 2222 ctl_set_internal_failure(ctsio, /*sks_valid*/ 0, 2223 /*retry_count*/ 1); 2224 goto badjuju; 2225 } 2226 2227 /* Make sure that we know about this LUN. */ 2228 mtx_lock(&softc->ctl_lock); 2229 if (targ_lun >= CTL_MAX_LUNS || 2230 (lun = softc->ctl_luns[targ_lun]) == NULL) { 2231 mtx_unlock(&softc->ctl_lock); 2232 2233 /* 2234 * The other node would not send this request to us unless 2235 * received announce that we are primary node for this LUN. 2236 * If this LUN does not exist now, it is probably result of 2237 * a race, so respond to initiator in the most opaque way. 2238 */ 2239 ctl_set_busy(ctsio); 2240 goto badjuju; 2241 } 2242 mtx_lock(&lun->lun_lock); 2243 mtx_unlock(&softc->ctl_lock); 2244 2245 /* 2246 * If the LUN is invalid, pretend that it doesn't exist. 2247 * It will go away as soon as all pending I/Os completed. 2248 */ 2249 if (lun->flags & CTL_LUN_DISABLED) { 2250 mtx_unlock(&lun->lun_lock); 2251 ctl_set_busy(ctsio); 2252 goto badjuju; 2253 } 2254 2255 entry = ctl_get_cmd_entry(ctsio, NULL); 2256 if (ctl_scsiio_lun_check(lun, entry, ctsio) != 0) { 2257 mtx_unlock(&lun->lun_lock); 2258 goto badjuju; 2259 } 2260 2261 CTL_LUN(ctsio) = lun; 2262 CTL_BACKEND_LUN(ctsio) = lun->be_lun; 2263 2264 /* 2265 * Every I/O goes into the OOA queue for a 2266 * particular LUN, and stays there until completion. 2267 */ 2268#ifdef CTL_TIME_IO 2269 if (TAILQ_EMPTY(&lun->ooa_queue)) 2270 lun->idle_time += getsbinuptime() - lun->last_busy; 2271#endif 2272 TAILQ_INSERT_TAIL(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 2273 2274 switch (ctl_check_ooa(lun, (union ctl_io *)ctsio, 2275 (union ctl_io *)TAILQ_PREV(&ctsio->io_hdr, ctl_ooaq, 2276 ooa_links))) { 2277 case CTL_ACTION_BLOCK: 2278 ctsio->io_hdr.flags |= CTL_FLAG_BLOCKED; 2279 TAILQ_INSERT_TAIL(&lun->blocked_queue, &ctsio->io_hdr, 2280 blocked_links); 2281 mtx_unlock(&lun->lun_lock); 2282 break; 2283 case CTL_ACTION_PASS: 2284 case CTL_ACTION_SKIP: 2285 if (softc->ha_mode == CTL_HA_MODE_XFER) { 2286 ctsio->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 2287 ctl_enqueue_rtr((union ctl_io *)ctsio); 2288 mtx_unlock(&lun->lun_lock); 2289 } else { 2290 ctsio->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 2291 mtx_unlock(&lun->lun_lock); 2292 2293 /* send msg back to other side */ 2294 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 2295 msg_info.hdr.serializing_sc = (union ctl_io *)ctsio; 2296 msg_info.hdr.msg_type = CTL_MSG_R2R; 2297 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 2298 sizeof(msg_info.hdr), M_WAITOK); 2299 } 2300 break; 2301 case CTL_ACTION_OVERLAP: 2302 TAILQ_REMOVE(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 2303 mtx_unlock(&lun->lun_lock); 2304 ctl_set_overlapped_cmd(ctsio); 2305 goto badjuju; 2306 case CTL_ACTION_OVERLAP_TAG: 2307 TAILQ_REMOVE(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 2308 mtx_unlock(&lun->lun_lock); 2309 ctl_set_overlapped_tag(ctsio, ctsio->tag_num); 2310 goto badjuju; 2311 case CTL_ACTION_ERROR: 2312 default: 2313 TAILQ_REMOVE(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 2314 mtx_unlock(&lun->lun_lock); 2315 2316 ctl_set_internal_failure(ctsio, /*sks_valid*/ 0, 2317 /*retry_count*/ 0); 2318badjuju: 2319 ctl_copy_sense_data_back((union ctl_io *)ctsio, &msg_info); 2320 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 2321 msg_info.hdr.serializing_sc = NULL; 2322 msg_info.hdr.msg_type = CTL_MSG_BAD_JUJU; 2323 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 2324 sizeof(msg_info.scsi), M_WAITOK); 2325 ctl_free_io((union ctl_io *)ctsio); 2326 break; 2327 } 2328} 2329 2330/* 2331 * Returns 0 for success, errno for failure. 2332 */ 2333static void 2334ctl_ioctl_fill_ooa(struct ctl_lun *lun, uint32_t *cur_fill_num, 2335 struct ctl_ooa *ooa_hdr, struct ctl_ooa_entry *kern_entries) 2336{ 2337 union ctl_io *io; 2338 2339 mtx_lock(&lun->lun_lock); 2340 for (io = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); (io != NULL); 2341 (*cur_fill_num)++, io = (union ctl_io *)TAILQ_NEXT(&io->io_hdr, 2342 ooa_links)) { 2343 struct ctl_ooa_entry *entry; 2344 2345 /* 2346 * If we've got more than we can fit, just count the 2347 * remaining entries. 2348 */ 2349 if (*cur_fill_num >= ooa_hdr->alloc_num) 2350 continue; 2351 2352 entry = &kern_entries[*cur_fill_num]; 2353 2354 entry->tag_num = io->scsiio.tag_num; 2355 entry->lun_num = lun->lun; 2356#ifdef CTL_TIME_IO 2357 entry->start_bt = io->io_hdr.start_bt; 2358#endif 2359 bcopy(io->scsiio.cdb, entry->cdb, io->scsiio.cdb_len); 2360 entry->cdb_len = io->scsiio.cdb_len; 2361 if (io->io_hdr.flags & CTL_FLAG_BLOCKED) 2362 entry->cmd_flags |= CTL_OOACMD_FLAG_BLOCKED; 2363 2364 if (io->io_hdr.flags & CTL_FLAG_DMA_INPROG) 2365 entry->cmd_flags |= CTL_OOACMD_FLAG_DMA; 2366 2367 if (io->io_hdr.flags & CTL_FLAG_ABORT) 2368 entry->cmd_flags |= CTL_OOACMD_FLAG_ABORT; 2369 2370 if (io->io_hdr.flags & CTL_FLAG_IS_WAS_ON_RTR) 2371 entry->cmd_flags |= CTL_OOACMD_FLAG_RTR; 2372 2373 if (io->io_hdr.flags & CTL_FLAG_DMA_QUEUED) 2374 entry->cmd_flags |= CTL_OOACMD_FLAG_DMA_QUEUED; 2375 } 2376 mtx_unlock(&lun->lun_lock); 2377} 2378 2379static void * 2380ctl_copyin_alloc(void *user_addr, int len, char *error_str, 2381 size_t error_str_len) 2382{ 2383 void *kptr; 2384 2385 kptr = malloc(len, M_CTL, M_WAITOK | M_ZERO); 2386 2387 if (copyin(user_addr, kptr, len) != 0) { 2388 snprintf(error_str, error_str_len, "Error copying %d bytes " 2389 "from user address %p to kernel address %p", len, 2390 user_addr, kptr); 2391 free(kptr, M_CTL); 2392 return (NULL); 2393 } 2394 2395 return (kptr); 2396} 2397 2398static void 2399ctl_free_args(int num_args, struct ctl_be_arg *args) 2400{ 2401 int i; 2402 2403 if (args == NULL) 2404 return; 2405 2406 for (i = 0; i < num_args; i++) { 2407 free(args[i].kname, M_CTL); 2408 free(args[i].kvalue, M_CTL); 2409 } 2410 2411 free(args, M_CTL); 2412} 2413 2414static struct ctl_be_arg * 2415ctl_copyin_args(int num_args, struct ctl_be_arg *uargs, 2416 char *error_str, size_t error_str_len) 2417{ 2418 struct ctl_be_arg *args; 2419 int i; 2420 2421 args = ctl_copyin_alloc(uargs, num_args * sizeof(*args), 2422 error_str, error_str_len); 2423 2424 if (args == NULL) 2425 goto bailout; 2426 2427 for (i = 0; i < num_args; i++) { 2428 args[i].kname = NULL; 2429 args[i].kvalue = NULL; 2430 } 2431 2432 for (i = 0; i < num_args; i++) { 2433 uint8_t *tmpptr; 2434 2435 args[i].kname = ctl_copyin_alloc(args[i].name, 2436 args[i].namelen, error_str, error_str_len); 2437 if (args[i].kname == NULL) 2438 goto bailout; 2439 2440 if (args[i].kname[args[i].namelen - 1] != '\0') { 2441 snprintf(error_str, error_str_len, "Argument %d " 2442 "name is not NUL-terminated", i); 2443 goto bailout; 2444 } 2445 2446 if (args[i].flags & CTL_BEARG_RD) { 2447 tmpptr = ctl_copyin_alloc(args[i].value, 2448 args[i].vallen, error_str, error_str_len); 2449 if (tmpptr == NULL) 2450 goto bailout; 2451 if ((args[i].flags & CTL_BEARG_ASCII) 2452 && (tmpptr[args[i].vallen - 1] != '\0')) { 2453 snprintf(error_str, error_str_len, "Argument " 2454 "%d value is not NUL-terminated", i); 2455 free(tmpptr, M_CTL); 2456 goto bailout; 2457 } 2458 args[i].kvalue = tmpptr; 2459 } else { 2460 args[i].kvalue = malloc(args[i].vallen, 2461 M_CTL, M_WAITOK | M_ZERO); 2462 } 2463 } 2464 2465 return (args); 2466bailout: 2467 2468 ctl_free_args(num_args, args); 2469 2470 return (NULL); 2471} 2472 2473static void 2474ctl_copyout_args(int num_args, struct ctl_be_arg *args) 2475{ 2476 int i; 2477 2478 for (i = 0; i < num_args; i++) { 2479 if (args[i].flags & CTL_BEARG_WR) 2480 copyout(args[i].kvalue, args[i].value, args[i].vallen); 2481 } 2482} 2483 2484/* 2485 * Escape characters that are illegal or not recommended in XML. 2486 */ 2487int 2488ctl_sbuf_printf_esc(struct sbuf *sb, char *str, int size) 2489{ 2490 char *end = str + size; 2491 int retval; 2492 2493 retval = 0; 2494 2495 for (; *str && str < end; str++) { 2496 switch (*str) { 2497 case '&': 2498 retval = sbuf_printf(sb, "&"); 2499 break; 2500 case '>': 2501 retval = sbuf_printf(sb, ">"); 2502 break; 2503 case '<': 2504 retval = sbuf_printf(sb, "<"); 2505 break; 2506 default: 2507 retval = sbuf_putc(sb, *str); 2508 break; 2509 } 2510 2511 if (retval != 0) 2512 break; 2513 2514 } 2515 2516 return (retval); 2517} 2518 2519static void 2520ctl_id_sbuf(struct ctl_devid *id, struct sbuf *sb) 2521{ 2522 struct scsi_vpd_id_descriptor *desc; 2523 int i; 2524 2525 if (id == NULL || id->len < 4) 2526 return; 2527 desc = (struct scsi_vpd_id_descriptor *)id->data; 2528 switch (desc->id_type & SVPD_ID_TYPE_MASK) { 2529 case SVPD_ID_TYPE_T10: 2530 sbuf_printf(sb, "t10."); 2531 break; 2532 case SVPD_ID_TYPE_EUI64: 2533 sbuf_printf(sb, "eui."); 2534 break; 2535 case SVPD_ID_TYPE_NAA: 2536 sbuf_printf(sb, "naa."); 2537 break; 2538 case SVPD_ID_TYPE_SCSI_NAME: 2539 break; 2540 } 2541 switch (desc->proto_codeset & SVPD_ID_CODESET_MASK) { 2542 case SVPD_ID_CODESET_BINARY: 2543 for (i = 0; i < desc->length; i++) 2544 sbuf_printf(sb, "%02x", desc->identifier[i]); 2545 break; 2546 case SVPD_ID_CODESET_ASCII: 2547 sbuf_printf(sb, "%.*s", (int)desc->length, 2548 (char *)desc->identifier); 2549 break; 2550 case SVPD_ID_CODESET_UTF8: 2551 sbuf_printf(sb, "%s", (char *)desc->identifier); 2552 break; 2553 } 2554} 2555 2556static int 2557ctl_ioctl(struct cdev *dev, u_long cmd, caddr_t addr, int flag, 2558 struct thread *td) 2559{ 2560 struct ctl_softc *softc = dev->si_drv1; 2561 struct ctl_lun *lun; 2562 int retval; 2563 2564 retval = 0; 2565 2566 switch (cmd) { 2567 case CTL_IO: 2568 retval = ctl_ioctl_io(dev, cmd, addr, flag, td); 2569 break; 2570 case CTL_ENABLE_PORT: 2571 case CTL_DISABLE_PORT: 2572 case CTL_SET_PORT_WWNS: { 2573 struct ctl_port *port; 2574 struct ctl_port_entry *entry; 2575 2576 entry = (struct ctl_port_entry *)addr; 2577 2578 mtx_lock(&softc->ctl_lock); 2579 STAILQ_FOREACH(port, &softc->port_list, links) { 2580 int action, done; 2581 2582 if (port->targ_port < softc->port_min || 2583 port->targ_port >= softc->port_max) 2584 continue; 2585 2586 action = 0; 2587 done = 0; 2588 if ((entry->port_type == CTL_PORT_NONE) 2589 && (entry->targ_port == port->targ_port)) { 2590 /* 2591 * If the user only wants to enable or 2592 * disable or set WWNs on a specific port, 2593 * do the operation and we're done. 2594 */ 2595 action = 1; 2596 done = 1; 2597 } else if (entry->port_type & port->port_type) { 2598 /* 2599 * Compare the user's type mask with the 2600 * particular frontend type to see if we 2601 * have a match. 2602 */ 2603 action = 1; 2604 done = 0; 2605 2606 /* 2607 * Make sure the user isn't trying to set 2608 * WWNs on multiple ports at the same time. 2609 */ 2610 if (cmd == CTL_SET_PORT_WWNS) { 2611 printf("%s: Can't set WWNs on " 2612 "multiple ports\n", __func__); 2613 retval = EINVAL; 2614 break; 2615 } 2616 } 2617 if (action == 0) 2618 continue; 2619 2620 /* 2621 * XXX KDM we have to drop the lock here, because 2622 * the online/offline operations can potentially 2623 * block. We need to reference count the frontends 2624 * so they can't go away, 2625 */ 2626 if (cmd == CTL_ENABLE_PORT) { 2627 mtx_unlock(&softc->ctl_lock); 2628 ctl_port_online(port); 2629 mtx_lock(&softc->ctl_lock); 2630 } else if (cmd == CTL_DISABLE_PORT) { 2631 mtx_unlock(&softc->ctl_lock); 2632 ctl_port_offline(port); 2633 mtx_lock(&softc->ctl_lock); 2634 } else if (cmd == CTL_SET_PORT_WWNS) { 2635 ctl_port_set_wwns(port, 2636 (entry->flags & CTL_PORT_WWNN_VALID) ? 2637 1 : 0, entry->wwnn, 2638 (entry->flags & CTL_PORT_WWPN_VALID) ? 2639 1 : 0, entry->wwpn); 2640 } 2641 if (done != 0) 2642 break; 2643 } 2644 mtx_unlock(&softc->ctl_lock); 2645 break; 2646 } 2647 case CTL_GET_OOA: { 2648 struct ctl_ooa *ooa_hdr; 2649 struct ctl_ooa_entry *entries; 2650 uint32_t cur_fill_num; 2651 2652 ooa_hdr = (struct ctl_ooa *)addr; 2653 2654 if ((ooa_hdr->alloc_len == 0) 2655 || (ooa_hdr->alloc_num == 0)) { 2656 printf("%s: CTL_GET_OOA: alloc len %u and alloc num %u " 2657 "must be non-zero\n", __func__, 2658 ooa_hdr->alloc_len, ooa_hdr->alloc_num); 2659 retval = EINVAL; 2660 break; 2661 } 2662 2663 if (ooa_hdr->alloc_len != (ooa_hdr->alloc_num * 2664 sizeof(struct ctl_ooa_entry))) { 2665 printf("%s: CTL_GET_OOA: alloc len %u must be alloc " 2666 "num %d * sizeof(struct ctl_ooa_entry) %zd\n", 2667 __func__, ooa_hdr->alloc_len, 2668 ooa_hdr->alloc_num,sizeof(struct ctl_ooa_entry)); 2669 retval = EINVAL; 2670 break; 2671 } 2672 2673 entries = malloc(ooa_hdr->alloc_len, M_CTL, M_WAITOK | M_ZERO); 2674 if (entries == NULL) { 2675 printf("%s: could not allocate %d bytes for OOA " 2676 "dump\n", __func__, ooa_hdr->alloc_len); 2677 retval = ENOMEM; 2678 break; 2679 } 2680 2681 mtx_lock(&softc->ctl_lock); 2682 if ((ooa_hdr->flags & CTL_OOA_FLAG_ALL_LUNS) == 0 && 2683 (ooa_hdr->lun_num >= CTL_MAX_LUNS || 2684 softc->ctl_luns[ooa_hdr->lun_num] == NULL)) { 2685 mtx_unlock(&softc->ctl_lock); 2686 free(entries, M_CTL); 2687 printf("%s: CTL_GET_OOA: invalid LUN %ju\n", 2688 __func__, (uintmax_t)ooa_hdr->lun_num); 2689 retval = EINVAL; 2690 break; 2691 } 2692 2693 cur_fill_num = 0; 2694 2695 if (ooa_hdr->flags & CTL_OOA_FLAG_ALL_LUNS) { 2696 STAILQ_FOREACH(lun, &softc->lun_list, links) { 2697 ctl_ioctl_fill_ooa(lun, &cur_fill_num, 2698 ooa_hdr, entries); 2699 } 2700 } else { 2701 lun = softc->ctl_luns[ooa_hdr->lun_num]; 2702 ctl_ioctl_fill_ooa(lun, &cur_fill_num, ooa_hdr, 2703 entries); 2704 } 2705 mtx_unlock(&softc->ctl_lock); 2706 2707 ooa_hdr->fill_num = min(cur_fill_num, ooa_hdr->alloc_num); 2708 ooa_hdr->fill_len = ooa_hdr->fill_num * 2709 sizeof(struct ctl_ooa_entry); 2710 retval = copyout(entries, ooa_hdr->entries, ooa_hdr->fill_len); 2711 if (retval != 0) { 2712 printf("%s: error copying out %d bytes for OOA dump\n", 2713 __func__, ooa_hdr->fill_len); 2714 } 2715 2716 getbinuptime(&ooa_hdr->cur_bt); 2717 2718 if (cur_fill_num > ooa_hdr->alloc_num) { 2719 ooa_hdr->dropped_num = cur_fill_num -ooa_hdr->alloc_num; 2720 ooa_hdr->status = CTL_OOA_NEED_MORE_SPACE; 2721 } else { 2722 ooa_hdr->dropped_num = 0; 2723 ooa_hdr->status = CTL_OOA_OK; 2724 } 2725 2726 free(entries, M_CTL); 2727 break; 2728 } 2729 case CTL_DELAY_IO: { 2730 struct ctl_io_delay_info *delay_info; 2731 2732 delay_info = (struct ctl_io_delay_info *)addr; 2733 2734#ifdef CTL_IO_DELAY 2735 mtx_lock(&softc->ctl_lock); 2736 if (delay_info->lun_id >= CTL_MAX_LUNS || 2737 (lun = softc->ctl_luns[delay_info->lun_id]) == NULL) { 2738 mtx_unlock(&softc->ctl_lock); 2739 delay_info->status = CTL_DELAY_STATUS_INVALID_LUN; 2740 break; 2741 } 2742 mtx_lock(&lun->lun_lock); 2743 mtx_unlock(&softc->ctl_lock); 2744 delay_info->status = CTL_DELAY_STATUS_OK; 2745 switch (delay_info->delay_type) { 2746 case CTL_DELAY_TYPE_CONT: 2747 case CTL_DELAY_TYPE_ONESHOT: 2748 break; 2749 default: 2750 delay_info->status = CTL_DELAY_STATUS_INVALID_TYPE; 2751 break; 2752 } 2753 switch (delay_info->delay_loc) { 2754 case CTL_DELAY_LOC_DATAMOVE: 2755 lun->delay_info.datamove_type = delay_info->delay_type; 2756 lun->delay_info.datamove_delay = delay_info->delay_secs; 2757 break; 2758 case CTL_DELAY_LOC_DONE: 2759 lun->delay_info.done_type = delay_info->delay_type; 2760 lun->delay_info.done_delay = delay_info->delay_secs; 2761 break; 2762 default: 2763 delay_info->status = CTL_DELAY_STATUS_INVALID_LOC; 2764 break; 2765 } 2766 mtx_unlock(&lun->lun_lock); 2767#else 2768 delay_info->status = CTL_DELAY_STATUS_NOT_IMPLEMENTED; 2769#endif /* CTL_IO_DELAY */ 2770 break; 2771 } 2772 case CTL_GETSTATS: { 2773 struct ctl_stats *stats = (struct ctl_stats *)addr; 2774 int i; 2775 2776 /* 2777 * XXX KDM no locking here. If the LUN list changes, 2778 * things can blow up. 2779 */ 2780 i = 0; 2781 stats->status = CTL_SS_OK; 2782 stats->fill_len = 0; 2783 STAILQ_FOREACH(lun, &softc->lun_list, links) { 2784 if (stats->fill_len + sizeof(lun->stats) > 2785 stats->alloc_len) { 2786 stats->status = CTL_SS_NEED_MORE_SPACE; 2787 break; 2788 } 2789 retval = copyout(&lun->stats, &stats->lun_stats[i++], 2790 sizeof(lun->stats)); 2791 if (retval != 0) 2792 break; 2793 stats->fill_len += sizeof(lun->stats); 2794 } 2795 stats->num_luns = softc->num_luns; 2796#ifdef CTL_TIME_IO 2797 stats->flags = CTL_STATS_FLAG_TIME_VALID; 2798#else 2799 stats->flags = CTL_STATS_FLAG_NONE; 2800#endif 2801 getnanouptime(&stats->timestamp); 2802 break; 2803 } 2804 case CTL_ERROR_INJECT: { 2805 struct ctl_error_desc *err_desc, *new_err_desc; 2806 2807 err_desc = (struct ctl_error_desc *)addr; 2808 2809 new_err_desc = malloc(sizeof(*new_err_desc), M_CTL, 2810 M_WAITOK | M_ZERO); 2811 bcopy(err_desc, new_err_desc, sizeof(*new_err_desc)); 2812 2813 mtx_lock(&softc->ctl_lock); 2814 if (err_desc->lun_id >= CTL_MAX_LUNS || 2815 (lun = softc->ctl_luns[err_desc->lun_id]) == NULL) { 2816 mtx_unlock(&softc->ctl_lock); 2817 free(new_err_desc, M_CTL); 2818 printf("%s: CTL_ERROR_INJECT: invalid LUN %ju\n", 2819 __func__, (uintmax_t)err_desc->lun_id); 2820 retval = EINVAL; 2821 break; 2822 } 2823 mtx_lock(&lun->lun_lock); 2824 mtx_unlock(&softc->ctl_lock); 2825 2826 /* 2827 * We could do some checking here to verify the validity 2828 * of the request, but given the complexity of error 2829 * injection requests, the checking logic would be fairly 2830 * complex. 2831 * 2832 * For now, if the request is invalid, it just won't get 2833 * executed and might get deleted. 2834 */ 2835 STAILQ_INSERT_TAIL(&lun->error_list, new_err_desc, links); 2836 2837 /* 2838 * XXX KDM check to make sure the serial number is unique, 2839 * in case we somehow manage to wrap. That shouldn't 2840 * happen for a very long time, but it's the right thing to 2841 * do. 2842 */ 2843 new_err_desc->serial = lun->error_serial; 2844 err_desc->serial = lun->error_serial; 2845 lun->error_serial++; 2846 2847 mtx_unlock(&lun->lun_lock); 2848 break; 2849 } 2850 case CTL_ERROR_INJECT_DELETE: { 2851 struct ctl_error_desc *delete_desc, *desc, *desc2; 2852 int delete_done; 2853 2854 delete_desc = (struct ctl_error_desc *)addr; 2855 delete_done = 0; 2856 2857 mtx_lock(&softc->ctl_lock); 2858 if (delete_desc->lun_id >= CTL_MAX_LUNS || 2859 (lun = softc->ctl_luns[delete_desc->lun_id]) == NULL) { 2860 mtx_unlock(&softc->ctl_lock); 2861 printf("%s: CTL_ERROR_INJECT_DELETE: invalid LUN %ju\n", 2862 __func__, (uintmax_t)delete_desc->lun_id); 2863 retval = EINVAL; 2864 break; 2865 } 2866 mtx_lock(&lun->lun_lock); 2867 mtx_unlock(&softc->ctl_lock); 2868 STAILQ_FOREACH_SAFE(desc, &lun->error_list, links, desc2) { 2869 if (desc->serial != delete_desc->serial) 2870 continue; 2871 2872 STAILQ_REMOVE(&lun->error_list, desc, ctl_error_desc, 2873 links); 2874 free(desc, M_CTL); 2875 delete_done = 1; 2876 } 2877 mtx_unlock(&lun->lun_lock); 2878 if (delete_done == 0) { 2879 printf("%s: CTL_ERROR_INJECT_DELETE: can't find " 2880 "error serial %ju on LUN %u\n", __func__, 2881 delete_desc->serial, delete_desc->lun_id); 2882 retval = EINVAL; 2883 break; 2884 } 2885 break; 2886 } 2887 case CTL_DUMP_STRUCTS: { 2888 int j, k; 2889 struct ctl_port *port; 2890 struct ctl_frontend *fe; 2891 2892 mtx_lock(&softc->ctl_lock); 2893 printf("CTL Persistent Reservation information start:\n"); 2894 STAILQ_FOREACH(lun, &softc->lun_list, links) { 2895 mtx_lock(&lun->lun_lock); 2896 if ((lun->flags & CTL_LUN_DISABLED) != 0) { 2897 mtx_unlock(&lun->lun_lock); 2898 continue; 2899 } 2900 2901 for (j = 0; j < CTL_MAX_PORTS; j++) { 2902 if (lun->pr_keys[j] == NULL) 2903 continue; 2904 for (k = 0; k < CTL_MAX_INIT_PER_PORT; k++){ 2905 if (lun->pr_keys[j][k] == 0) 2906 continue; 2907 printf(" LUN %ju port %d iid %d key " 2908 "%#jx\n", lun->lun, j, k, 2909 (uintmax_t)lun->pr_keys[j][k]); 2910 } 2911 } 2912 mtx_unlock(&lun->lun_lock); 2913 } 2914 printf("CTL Persistent Reservation information end\n"); 2915 printf("CTL Ports:\n"); 2916 STAILQ_FOREACH(port, &softc->port_list, links) { 2917 printf(" Port %d '%s' Frontend '%s' Type %u pp %d vp %d WWNN " 2918 "%#jx WWPN %#jx\n", port->targ_port, port->port_name, 2919 port->frontend->name, port->port_type, 2920 port->physical_port, port->virtual_port, 2921 (uintmax_t)port->wwnn, (uintmax_t)port->wwpn); 2922 for (j = 0; j < CTL_MAX_INIT_PER_PORT; j++) { 2923 if (port->wwpn_iid[j].in_use == 0 && 2924 port->wwpn_iid[j].wwpn == 0 && 2925 port->wwpn_iid[j].name == NULL) 2926 continue; 2927 2928 printf(" iid %u use %d WWPN %#jx '%s'\n", 2929 j, port->wwpn_iid[j].in_use, 2930 (uintmax_t)port->wwpn_iid[j].wwpn, 2931 port->wwpn_iid[j].name); 2932 } 2933 } 2934 printf("CTL Port information end\n"); 2935 mtx_unlock(&softc->ctl_lock); 2936 /* 2937 * XXX KDM calling this without a lock. We'd likely want 2938 * to drop the lock before calling the frontend's dump 2939 * routine anyway. 2940 */ 2941 printf("CTL Frontends:\n"); 2942 STAILQ_FOREACH(fe, &softc->fe_list, links) { 2943 printf(" Frontend '%s'\n", fe->name); 2944 if (fe->fe_dump != NULL) 2945 fe->fe_dump(); 2946 } 2947 printf("CTL Frontend information end\n"); 2948 break; 2949 } 2950 case CTL_LUN_REQ: { 2951 struct ctl_lun_req *lun_req; 2952 struct ctl_backend_driver *backend; 2953 2954 lun_req = (struct ctl_lun_req *)addr; 2955 2956 backend = ctl_backend_find(lun_req->backend); 2957 if (backend == NULL) { 2958 lun_req->status = CTL_LUN_ERROR; 2959 snprintf(lun_req->error_str, 2960 sizeof(lun_req->error_str), 2961 "Backend \"%s\" not found.", 2962 lun_req->backend); 2963 break; 2964 } 2965 if (lun_req->num_be_args > 0) { 2966 lun_req->kern_be_args = ctl_copyin_args( 2967 lun_req->num_be_args, 2968 lun_req->be_args, 2969 lun_req->error_str, 2970 sizeof(lun_req->error_str)); 2971 if (lun_req->kern_be_args == NULL) { 2972 lun_req->status = CTL_LUN_ERROR; 2973 break; 2974 } 2975 } 2976 2977 retval = backend->ioctl(dev, cmd, addr, flag, td); 2978 2979 if (lun_req->num_be_args > 0) { 2980 ctl_copyout_args(lun_req->num_be_args, 2981 lun_req->kern_be_args); 2982 ctl_free_args(lun_req->num_be_args, 2983 lun_req->kern_be_args); 2984 } 2985 break; 2986 } 2987 case CTL_LUN_LIST: { 2988 struct sbuf *sb; 2989 struct ctl_lun_list *list; 2990 struct ctl_option *opt; 2991 2992 list = (struct ctl_lun_list *)addr; 2993 2994 /* 2995 * Allocate a fixed length sbuf here, based on the length 2996 * of the user's buffer. We could allocate an auto-extending 2997 * buffer, and then tell the user how much larger our 2998 * amount of data is than his buffer, but that presents 2999 * some problems: 3000 * 3001 * 1. The sbuf(9) routines use a blocking malloc, and so 3002 * we can't hold a lock while calling them with an 3003 * auto-extending buffer. 3004 * 3005 * 2. There is not currently a LUN reference counting 3006 * mechanism, outside of outstanding transactions on 3007 * the LUN's OOA queue. So a LUN could go away on us 3008 * while we're getting the LUN number, backend-specific 3009 * information, etc. Thus, given the way things 3010 * currently work, we need to hold the CTL lock while 3011 * grabbing LUN information. 3012 * 3013 * So, from the user's standpoint, the best thing to do is 3014 * allocate what he thinks is a reasonable buffer length, 3015 * and then if he gets a CTL_LUN_LIST_NEED_MORE_SPACE error, 3016 * double the buffer length and try again. (And repeat 3017 * that until he succeeds.) 3018 */ 3019 sb = sbuf_new(NULL, NULL, list->alloc_len, SBUF_FIXEDLEN); 3020 if (sb == NULL) { 3021 list->status = CTL_LUN_LIST_ERROR; 3022 snprintf(list->error_str, sizeof(list->error_str), 3023 "Unable to allocate %d bytes for LUN list", 3024 list->alloc_len); 3025 break; 3026 } 3027 3028 sbuf_printf(sb, "<ctllunlist>\n"); 3029 3030 mtx_lock(&softc->ctl_lock); 3031 STAILQ_FOREACH(lun, &softc->lun_list, links) { 3032 mtx_lock(&lun->lun_lock); 3033 retval = sbuf_printf(sb, "<lun id=\"%ju\">\n", 3034 (uintmax_t)lun->lun); 3035 3036 /* 3037 * Bail out as soon as we see that we've overfilled 3038 * the buffer. 3039 */ 3040 if (retval != 0) 3041 break; 3042 3043 retval = sbuf_printf(sb, "\t<backend_type>%s" 3044 "</backend_type>\n", 3045 (lun->backend == NULL) ? "none" : 3046 lun->backend->name); 3047 3048 if (retval != 0) 3049 break; 3050 3051 retval = sbuf_printf(sb, "\t<lun_type>%d</lun_type>\n", 3052 lun->be_lun->lun_type); 3053 3054 if (retval != 0) 3055 break; 3056 3057 if (lun->backend == NULL) { 3058 retval = sbuf_printf(sb, "</lun>\n"); 3059 if (retval != 0) 3060 break; 3061 continue; 3062 } 3063 3064 retval = sbuf_printf(sb, "\t<size>%ju</size>\n", 3065 (lun->be_lun->maxlba > 0) ? 3066 lun->be_lun->maxlba + 1 : 0); 3067 3068 if (retval != 0) 3069 break; 3070 3071 retval = sbuf_printf(sb, "\t<blocksize>%u</blocksize>\n", 3072 lun->be_lun->blocksize); 3073 3074 if (retval != 0) 3075 break; 3076 3077 retval = sbuf_printf(sb, "\t<serial_number>"); 3078 3079 if (retval != 0) 3080 break; 3081 3082 retval = ctl_sbuf_printf_esc(sb, 3083 lun->be_lun->serial_num, 3084 sizeof(lun->be_lun->serial_num)); 3085 3086 if (retval != 0) 3087 break; 3088 3089 retval = sbuf_printf(sb, "</serial_number>\n"); 3090 3091 if (retval != 0) 3092 break; 3093 3094 retval = sbuf_printf(sb, "\t<device_id>"); 3095 3096 if (retval != 0) 3097 break; 3098 3099 retval = ctl_sbuf_printf_esc(sb, 3100 lun->be_lun->device_id, 3101 sizeof(lun->be_lun->device_id)); 3102 3103 if (retval != 0) 3104 break; 3105 3106 retval = sbuf_printf(sb, "</device_id>\n"); 3107 3108 if (retval != 0) 3109 break; 3110 3111 if (lun->backend->lun_info != NULL) { 3112 retval = lun->backend->lun_info(lun->be_lun->be_lun, sb); 3113 if (retval != 0) 3114 break; 3115 } 3116 STAILQ_FOREACH(opt, &lun->be_lun->options, links) { 3117 retval = sbuf_printf(sb, "\t<%s>%s</%s>\n", 3118 opt->name, opt->value, opt->name); 3119 if (retval != 0) 3120 break; 3121 } 3122 3123 retval = sbuf_printf(sb, "</lun>\n"); 3124 3125 if (retval != 0) 3126 break; 3127 mtx_unlock(&lun->lun_lock); 3128 } 3129 if (lun != NULL) 3130 mtx_unlock(&lun->lun_lock); 3131 mtx_unlock(&softc->ctl_lock); 3132 3133 if ((retval != 0) 3134 || ((retval = sbuf_printf(sb, "</ctllunlist>\n")) != 0)) { 3135 retval = 0; 3136 sbuf_delete(sb); 3137 list->status = CTL_LUN_LIST_NEED_MORE_SPACE; 3138 snprintf(list->error_str, sizeof(list->error_str), 3139 "Out of space, %d bytes is too small", 3140 list->alloc_len); 3141 break; 3142 } 3143 3144 sbuf_finish(sb); 3145 3146 retval = copyout(sbuf_data(sb), list->lun_xml, 3147 sbuf_len(sb) + 1); 3148 3149 list->fill_len = sbuf_len(sb) + 1; 3150 list->status = CTL_LUN_LIST_OK; 3151 sbuf_delete(sb); 3152 break; 3153 } 3154 case CTL_ISCSI: { 3155 struct ctl_iscsi *ci; 3156 struct ctl_frontend *fe; 3157 3158 ci = (struct ctl_iscsi *)addr; 3159 3160 fe = ctl_frontend_find("iscsi"); 3161 if (fe == NULL) { 3162 ci->status = CTL_ISCSI_ERROR; 3163 snprintf(ci->error_str, sizeof(ci->error_str), 3164 "Frontend \"iscsi\" not found."); 3165 break; 3166 } 3167 3168 retval = fe->ioctl(dev, cmd, addr, flag, td); 3169 break; 3170 } 3171 case CTL_PORT_REQ: { 3172 struct ctl_req *req; 3173 struct ctl_frontend *fe; 3174 3175 req = (struct ctl_req *)addr; 3176 3177 fe = ctl_frontend_find(req->driver); 3178 if (fe == NULL) { 3179 req->status = CTL_LUN_ERROR; 3180 snprintf(req->error_str, sizeof(req->error_str), 3181 "Frontend \"%s\" not found.", req->driver); 3182 break; 3183 } 3184 if (req->num_args > 0) { 3185 req->kern_args = ctl_copyin_args(req->num_args, 3186 req->args, req->error_str, sizeof(req->error_str)); 3187 if (req->kern_args == NULL) { 3188 req->status = CTL_LUN_ERROR; 3189 break; 3190 } 3191 } 3192 3193 if (fe->ioctl) 3194 retval = fe->ioctl(dev, cmd, addr, flag, td); 3195 else 3196 retval = ENODEV; 3197 3198 if (req->num_args > 0) { 3199 ctl_copyout_args(req->num_args, req->kern_args); 3200 ctl_free_args(req->num_args, req->kern_args); 3201 } 3202 break; 3203 } 3204 case CTL_PORT_LIST: { 3205 struct sbuf *sb; 3206 struct ctl_port *port; 3207 struct ctl_lun_list *list; 3208 struct ctl_option *opt; 3209 int j; 3210 uint32_t plun; 3211 3212 list = (struct ctl_lun_list *)addr; 3213 3214 sb = sbuf_new(NULL, NULL, list->alloc_len, SBUF_FIXEDLEN); 3215 if (sb == NULL) { 3216 list->status = CTL_LUN_LIST_ERROR; 3217 snprintf(list->error_str, sizeof(list->error_str), 3218 "Unable to allocate %d bytes for LUN list", 3219 list->alloc_len); 3220 break; 3221 } 3222 3223 sbuf_printf(sb, "<ctlportlist>\n"); 3224 3225 mtx_lock(&softc->ctl_lock); 3226 STAILQ_FOREACH(port, &softc->port_list, links) { 3227 retval = sbuf_printf(sb, "<targ_port id=\"%ju\">\n", 3228 (uintmax_t)port->targ_port); 3229 3230 /* 3231 * Bail out as soon as we see that we've overfilled 3232 * the buffer. 3233 */ 3234 if (retval != 0) 3235 break; 3236 3237 retval = sbuf_printf(sb, "\t<frontend_type>%s" 3238 "</frontend_type>\n", port->frontend->name); 3239 if (retval != 0) 3240 break; 3241 3242 retval = sbuf_printf(sb, "\t<port_type>%d</port_type>\n", 3243 port->port_type); 3244 if (retval != 0) 3245 break; 3246 3247 retval = sbuf_printf(sb, "\t<online>%s</online>\n", 3248 (port->status & CTL_PORT_STATUS_ONLINE) ? "YES" : "NO"); 3249 if (retval != 0) 3250 break; 3251 3252 retval = sbuf_printf(sb, "\t<port_name>%s</port_name>\n", 3253 port->port_name); 3254 if (retval != 0) 3255 break; 3256 3257 retval = sbuf_printf(sb, "\t<physical_port>%d</physical_port>\n", 3258 port->physical_port); 3259 if (retval != 0) 3260 break; 3261 3262 retval = sbuf_printf(sb, "\t<virtual_port>%d</virtual_port>\n", 3263 port->virtual_port); 3264 if (retval != 0) 3265 break; 3266 3267 if (port->target_devid != NULL) { 3268 sbuf_printf(sb, "\t<target>"); 3269 ctl_id_sbuf(port->target_devid, sb); 3270 sbuf_printf(sb, "</target>\n"); 3271 } 3272 3273 if (port->port_devid != NULL) { 3274 sbuf_printf(sb, "\t<port>"); 3275 ctl_id_sbuf(port->port_devid, sb); 3276 sbuf_printf(sb, "</port>\n"); 3277 } 3278 3279 if (port->port_info != NULL) { 3280 retval = port->port_info(port->onoff_arg, sb); 3281 if (retval != 0) 3282 break; 3283 } 3284 STAILQ_FOREACH(opt, &port->options, links) { 3285 retval = sbuf_printf(sb, "\t<%s>%s</%s>\n", 3286 opt->name, opt->value, opt->name); 3287 if (retval != 0) 3288 break; 3289 } 3290 3291 if (port->lun_map != NULL) { 3292 sbuf_printf(sb, "\t<lun_map>on</lun_map>\n"); 3293 for (j = 0; j < port->lun_map_size; j++) { 3294 plun = ctl_lun_map_from_port(port, j); 3295 if (plun == UINT32_MAX) 3296 continue; 3297 sbuf_printf(sb, 3298 "\t<lun id=\"%u\">%u</lun>\n", 3299 j, plun); 3300 } 3301 } 3302 3303 for (j = 0; j < CTL_MAX_INIT_PER_PORT; j++) { 3304 if (port->wwpn_iid[j].in_use == 0 || 3305 (port->wwpn_iid[j].wwpn == 0 && 3306 port->wwpn_iid[j].name == NULL)) 3307 continue; 3308 3309 if (port->wwpn_iid[j].name != NULL) 3310 retval = sbuf_printf(sb, 3311 "\t<initiator id=\"%u\">%s</initiator>\n", 3312 j, port->wwpn_iid[j].name); 3313 else 3314 retval = sbuf_printf(sb, 3315 "\t<initiator id=\"%u\">naa.%08jx</initiator>\n", 3316 j, port->wwpn_iid[j].wwpn); 3317 if (retval != 0) 3318 break; 3319 } 3320 if (retval != 0) 3321 break; 3322 3323 retval = sbuf_printf(sb, "</targ_port>\n"); 3324 if (retval != 0) 3325 break; 3326 } 3327 mtx_unlock(&softc->ctl_lock); 3328 3329 if ((retval != 0) 3330 || ((retval = sbuf_printf(sb, "</ctlportlist>\n")) != 0)) { 3331 retval = 0; 3332 sbuf_delete(sb); 3333 list->status = CTL_LUN_LIST_NEED_MORE_SPACE; 3334 snprintf(list->error_str, sizeof(list->error_str), 3335 "Out of space, %d bytes is too small", 3336 list->alloc_len); 3337 break; 3338 } 3339 3340 sbuf_finish(sb); 3341 3342 retval = copyout(sbuf_data(sb), list->lun_xml, 3343 sbuf_len(sb) + 1); 3344 3345 list->fill_len = sbuf_len(sb) + 1; 3346 list->status = CTL_LUN_LIST_OK; 3347 sbuf_delete(sb); 3348 break; 3349 } 3350 case CTL_LUN_MAP: { 3351 struct ctl_lun_map *lm = (struct ctl_lun_map *)addr; 3352 struct ctl_port *port; 3353 3354 mtx_lock(&softc->ctl_lock); 3355 if (lm->port < softc->port_min || 3356 lm->port >= softc->port_max || 3357 (port = softc->ctl_ports[lm->port]) == NULL) { 3358 mtx_unlock(&softc->ctl_lock); 3359 return (ENXIO); 3360 } 3361 if (port->status & CTL_PORT_STATUS_ONLINE) { 3362 STAILQ_FOREACH(lun, &softc->lun_list, links) { 3363 if (ctl_lun_map_to_port(port, lun->lun) == 3364 UINT32_MAX) 3365 continue; 3366 mtx_lock(&lun->lun_lock); 3367 ctl_est_ua_port(lun, lm->port, -1, 3368 CTL_UA_LUN_CHANGE); 3369 mtx_unlock(&lun->lun_lock); 3370 } 3371 } 3372 mtx_unlock(&softc->ctl_lock); // XXX: port_enable sleeps 3373 if (lm->plun != UINT32_MAX) { 3374 if (lm->lun == UINT32_MAX) 3375 retval = ctl_lun_map_unset(port, lm->plun); 3376 else if (lm->lun < CTL_MAX_LUNS && 3377 softc->ctl_luns[lm->lun] != NULL) 3378 retval = ctl_lun_map_set(port, lm->plun, lm->lun); 3379 else 3380 return (ENXIO); 3381 } else { 3382 if (lm->lun == UINT32_MAX) 3383 retval = ctl_lun_map_deinit(port); 3384 else 3385 retval = ctl_lun_map_init(port); 3386 } 3387 if (port->status & CTL_PORT_STATUS_ONLINE) 3388 ctl_isc_announce_port(port); 3389 break; 3390 } 3391 default: { 3392 /* XXX KDM should we fix this? */ 3393#if 0 3394 struct ctl_backend_driver *backend; 3395 unsigned int type; 3396 int found; 3397 3398 found = 0; 3399 3400 /* 3401 * We encode the backend type as the ioctl type for backend 3402 * ioctls. So parse it out here, and then search for a 3403 * backend of this type. 3404 */ 3405 type = _IOC_TYPE(cmd); 3406 3407 STAILQ_FOREACH(backend, &softc->be_list, links) { 3408 if (backend->type == type) { 3409 found = 1; 3410 break; 3411 } 3412 } 3413 if (found == 0) { 3414 printf("ctl: unknown ioctl command %#lx or backend " 3415 "%d\n", cmd, type); 3416 retval = EINVAL; 3417 break; 3418 } 3419 retval = backend->ioctl(dev, cmd, addr, flag, td); 3420#endif 3421 retval = ENOTTY; 3422 break; 3423 } 3424 } 3425 return (retval); 3426} 3427 3428uint32_t 3429ctl_get_initindex(struct ctl_nexus *nexus) 3430{ 3431 return (nexus->initid + (nexus->targ_port * CTL_MAX_INIT_PER_PORT)); 3432} 3433 3434int 3435ctl_lun_map_init(struct ctl_port *port) 3436{ 3437 struct ctl_softc *softc = port->ctl_softc; 3438 struct ctl_lun *lun; 3439 int size = ctl_lun_map_size; 3440 uint32_t i; 3441 3442 if (port->lun_map == NULL || port->lun_map_size < size) { 3443 port->lun_map_size = 0; 3444 free(port->lun_map, M_CTL); 3445 port->lun_map = malloc(size * sizeof(uint32_t), 3446 M_CTL, M_NOWAIT); 3447 } 3448 if (port->lun_map == NULL) 3449 return (ENOMEM); 3450 for (i = 0; i < size; i++) 3451 port->lun_map[i] = UINT32_MAX; 3452 port->lun_map_size = size; 3453 if (port->status & CTL_PORT_STATUS_ONLINE) { 3454 if (port->lun_disable != NULL) { 3455 STAILQ_FOREACH(lun, &softc->lun_list, links) 3456 port->lun_disable(port->targ_lun_arg, lun->lun); 3457 } 3458 ctl_isc_announce_port(port); 3459 } 3460 return (0); 3461} 3462 3463int 3464ctl_lun_map_deinit(struct ctl_port *port) 3465{ 3466 struct ctl_softc *softc = port->ctl_softc; 3467 struct ctl_lun *lun; 3468 3469 if (port->lun_map == NULL) 3470 return (0); 3471 port->lun_map_size = 0; 3472 free(port->lun_map, M_CTL); 3473 port->lun_map = NULL; 3474 if (port->status & CTL_PORT_STATUS_ONLINE) { 3475 if (port->lun_enable != NULL) { 3476 STAILQ_FOREACH(lun, &softc->lun_list, links) 3477 port->lun_enable(port->targ_lun_arg, lun->lun); 3478 } 3479 ctl_isc_announce_port(port); 3480 } 3481 return (0); 3482} 3483 3484int 3485ctl_lun_map_set(struct ctl_port *port, uint32_t plun, uint32_t glun) 3486{ 3487 int status; 3488 uint32_t old; 3489 3490 if (port->lun_map == NULL) { 3491 status = ctl_lun_map_init(port); 3492 if (status != 0) 3493 return (status); 3494 } 3495 if (plun >= port->lun_map_size) 3496 return (EINVAL); 3497 old = port->lun_map[plun]; 3498 port->lun_map[plun] = glun; 3499 if ((port->status & CTL_PORT_STATUS_ONLINE) && old == UINT32_MAX) { 3500 if (port->lun_enable != NULL) 3501 port->lun_enable(port->targ_lun_arg, plun); 3502 ctl_isc_announce_port(port); 3503 } 3504 return (0); 3505} 3506 3507int 3508ctl_lun_map_unset(struct ctl_port *port, uint32_t plun) 3509{ 3510 uint32_t old; 3511 3512 if (port->lun_map == NULL || plun >= port->lun_map_size) 3513 return (0); 3514 old = port->lun_map[plun]; 3515 port->lun_map[plun] = UINT32_MAX; 3516 if ((port->status & CTL_PORT_STATUS_ONLINE) && old != UINT32_MAX) { 3517 if (port->lun_disable != NULL) 3518 port->lun_disable(port->targ_lun_arg, plun); 3519 ctl_isc_announce_port(port); 3520 } 3521 return (0); 3522} 3523 3524uint32_t 3525ctl_lun_map_from_port(struct ctl_port *port, uint32_t lun_id) 3526{ 3527 3528 if (port == NULL) 3529 return (UINT32_MAX); 3530 if (port->lun_map == NULL) 3531 return (lun_id); 3532 if (lun_id > port->lun_map_size) 3533 return (UINT32_MAX); 3534 return (port->lun_map[lun_id]); 3535} 3536 3537uint32_t 3538ctl_lun_map_to_port(struct ctl_port *port, uint32_t lun_id) 3539{ 3540 uint32_t i; 3541 3542 if (port == NULL) 3543 return (UINT32_MAX); 3544 if (port->lun_map == NULL) 3545 return (lun_id); 3546 for (i = 0; i < port->lun_map_size; i++) { 3547 if (port->lun_map[i] == lun_id) 3548 return (i); 3549 } 3550 return (UINT32_MAX); 3551} 3552 3553uint32_t 3554ctl_decode_lun(uint64_t encoded) 3555{ 3556 uint8_t lun[8]; 3557 uint32_t result = 0xffffffff; 3558 3559 be64enc(lun, encoded); 3560 switch (lun[0] & RPL_LUNDATA_ATYP_MASK) { 3561 case RPL_LUNDATA_ATYP_PERIPH: 3562 if ((lun[0] & 0x3f) == 0 && lun[2] == 0 && lun[3] == 0 && 3563 lun[4] == 0 && lun[5] == 0 && lun[6] == 0 && lun[7] == 0) 3564 result = lun[1]; 3565 break; 3566 case RPL_LUNDATA_ATYP_FLAT: 3567 if (lun[2] == 0 && lun[3] == 0 && lun[4] == 0 && lun[5] == 0 && 3568 lun[6] == 0 && lun[7] == 0) 3569 result = ((lun[0] & 0x3f) << 8) + lun[1]; 3570 break; 3571 case RPL_LUNDATA_ATYP_EXTLUN: 3572 switch (lun[0] & RPL_LUNDATA_EXT_EAM_MASK) { 3573 case 0x02: 3574 switch (lun[0] & RPL_LUNDATA_EXT_LEN_MASK) { 3575 case 0x00: 3576 result = lun[1]; 3577 break; 3578 case 0x10: 3579 result = (lun[1] << 16) + (lun[2] << 8) + 3580 lun[3]; 3581 break; 3582 case 0x20: 3583 if (lun[1] == 0 && lun[6] == 0 && lun[7] == 0) 3584 result = (lun[2] << 24) + 3585 (lun[3] << 16) + (lun[4] << 8) + 3586 lun[5]; 3587 break; 3588 } 3589 break; 3590 case RPL_LUNDATA_EXT_EAM_NOT_SPEC: 3591 result = 0xffffffff; 3592 break; 3593 } 3594 break; 3595 } 3596 return (result); 3597} 3598 3599uint64_t 3600ctl_encode_lun(uint32_t decoded) 3601{ 3602 uint64_t l = decoded; 3603 3604 if (l <= 0xff) 3605 return (((uint64_t)RPL_LUNDATA_ATYP_PERIPH << 56) | (l << 48)); 3606 if (l <= 0x3fff) 3607 return (((uint64_t)RPL_LUNDATA_ATYP_FLAT << 56) | (l << 48)); 3608 if (l <= 0xffffff) 3609 return (((uint64_t)(RPL_LUNDATA_ATYP_EXTLUN | 0x12) << 56) | 3610 (l << 32)); 3611 return ((((uint64_t)RPL_LUNDATA_ATYP_EXTLUN | 0x22) << 56) | (l << 16)); 3612} 3613 3614int 3615ctl_ffz(uint32_t *mask, uint32_t first, uint32_t last) 3616{ 3617 int i; 3618 3619 for (i = first; i < last; i++) { 3620 if ((mask[i / 32] & (1 << (i % 32))) == 0) 3621 return (i); 3622 } 3623 return (-1); 3624} 3625 3626int 3627ctl_set_mask(uint32_t *mask, uint32_t bit) 3628{ 3629 uint32_t chunk, piece; 3630 3631 chunk = bit >> 5; 3632 piece = bit % (sizeof(uint32_t) * 8); 3633 3634 if ((mask[chunk] & (1 << piece)) != 0) 3635 return (-1); 3636 else 3637 mask[chunk] |= (1 << piece); 3638 3639 return (0); 3640} 3641 3642int 3643ctl_clear_mask(uint32_t *mask, uint32_t bit) 3644{ 3645 uint32_t chunk, piece; 3646 3647 chunk = bit >> 5; 3648 piece = bit % (sizeof(uint32_t) * 8); 3649 3650 if ((mask[chunk] & (1 << piece)) == 0) 3651 return (-1); 3652 else 3653 mask[chunk] &= ~(1 << piece); 3654 3655 return (0); 3656} 3657 3658int 3659ctl_is_set(uint32_t *mask, uint32_t bit) 3660{ 3661 uint32_t chunk, piece; 3662 3663 chunk = bit >> 5; 3664 piece = bit % (sizeof(uint32_t) * 8); 3665 3666 if ((mask[chunk] & (1 << piece)) == 0) 3667 return (0); 3668 else 3669 return (1); 3670} 3671 3672static uint64_t 3673ctl_get_prkey(struct ctl_lun *lun, uint32_t residx) 3674{ 3675 uint64_t *t; 3676 3677 t = lun->pr_keys[residx/CTL_MAX_INIT_PER_PORT]; 3678 if (t == NULL) 3679 return (0); 3680 return (t[residx % CTL_MAX_INIT_PER_PORT]); 3681} 3682 3683static void 3684ctl_clr_prkey(struct ctl_lun *lun, uint32_t residx) 3685{ 3686 uint64_t *t; 3687 3688 t = lun->pr_keys[residx/CTL_MAX_INIT_PER_PORT]; 3689 if (t == NULL) 3690 return; 3691 t[residx % CTL_MAX_INIT_PER_PORT] = 0; 3692} 3693 3694static void 3695ctl_alloc_prkey(struct ctl_lun *lun, uint32_t residx) 3696{ 3697 uint64_t *p; 3698 u_int i; 3699 3700 i = residx/CTL_MAX_INIT_PER_PORT; 3701 if (lun->pr_keys[i] != NULL) 3702 return; 3703 mtx_unlock(&lun->lun_lock); 3704 p = malloc(sizeof(uint64_t) * CTL_MAX_INIT_PER_PORT, M_CTL, 3705 M_WAITOK | M_ZERO); 3706 mtx_lock(&lun->lun_lock); 3707 if (lun->pr_keys[i] == NULL) 3708 lun->pr_keys[i] = p; 3709 else 3710 free(p, M_CTL); 3711} 3712 3713static void 3714ctl_set_prkey(struct ctl_lun *lun, uint32_t residx, uint64_t key) 3715{ 3716 uint64_t *t; 3717 3718 t = lun->pr_keys[residx/CTL_MAX_INIT_PER_PORT]; 3719 KASSERT(t != NULL, ("prkey %d is not allocated", residx)); 3720 t[residx % CTL_MAX_INIT_PER_PORT] = key; 3721} 3722 3723/* 3724 * ctl_softc, pool_name, total_ctl_io are passed in. 3725 * npool is passed out. 3726 */ 3727int 3728ctl_pool_create(struct ctl_softc *ctl_softc, const char *pool_name, 3729 uint32_t total_ctl_io, void **npool) 3730{ 3731 struct ctl_io_pool *pool; 3732 3733 pool = (struct ctl_io_pool *)malloc(sizeof(*pool), M_CTL, 3734 M_NOWAIT | M_ZERO); 3735 if (pool == NULL) 3736 return (ENOMEM); 3737 3738 snprintf(pool->name, sizeof(pool->name), "CTL IO %s", pool_name); 3739 pool->ctl_softc = ctl_softc; 3740#ifdef IO_POOLS 3741 pool->zone = uma_zsecond_create(pool->name, NULL, 3742 NULL, NULL, NULL, ctl_softc->io_zone); 3743 /* uma_prealloc(pool->zone, total_ctl_io); */ 3744#else 3745 pool->zone = ctl_softc->io_zone; 3746#endif 3747 3748 *npool = pool; 3749 return (0); 3750} 3751 3752void 3753ctl_pool_free(struct ctl_io_pool *pool) 3754{ 3755 3756 if (pool == NULL) 3757 return; 3758 3759#ifdef IO_POOLS 3760 uma_zdestroy(pool->zone); 3761#endif 3762 free(pool, M_CTL); 3763} 3764 3765union ctl_io * 3766ctl_alloc_io(void *pool_ref) 3767{ 3768 struct ctl_io_pool *pool = (struct ctl_io_pool *)pool_ref; 3769 union ctl_io *io; 3770 3771 io = uma_zalloc(pool->zone, M_WAITOK); 3772 if (io != NULL) { 3773 io->io_hdr.pool = pool_ref; 3774 CTL_SOFTC(io) = pool->ctl_softc; 3775 } 3776 return (io); 3777} 3778 3779union ctl_io * 3780ctl_alloc_io_nowait(void *pool_ref) 3781{ 3782 struct ctl_io_pool *pool = (struct ctl_io_pool *)pool_ref; 3783 union ctl_io *io; 3784 3785 io = uma_zalloc(pool->zone, M_NOWAIT); 3786 if (io != NULL) { 3787 io->io_hdr.pool = pool_ref; 3788 CTL_SOFTC(io) = pool->ctl_softc; 3789 } 3790 return (io); 3791} 3792 3793void 3794ctl_free_io(union ctl_io *io) 3795{ 3796 struct ctl_io_pool *pool; 3797 3798 if (io == NULL) 3799 return; 3800 3801 pool = (struct ctl_io_pool *)io->io_hdr.pool; 3802 uma_zfree(pool->zone, io); 3803} 3804 3805void 3806ctl_zero_io(union ctl_io *io) 3807{ 3808 struct ctl_io_pool *pool; 3809 3810 if (io == NULL) 3811 return; 3812 3813 /* 3814 * May need to preserve linked list pointers at some point too. 3815 */ 3816 pool = io->io_hdr.pool; 3817 memset(io, 0, sizeof(*io)); 3818 io->io_hdr.pool = pool; 3819 CTL_SOFTC(io) = pool->ctl_softc; 3820} 3821 3822int 3823ctl_expand_number(const char *buf, uint64_t *num) 3824{ 3825 char *endptr; 3826 uint64_t number; 3827 unsigned shift; 3828 3829 number = strtoq(buf, &endptr, 0); 3830 3831 switch (tolower((unsigned char)*endptr)) { 3832 case 'e': 3833 shift = 60; 3834 break; 3835 case 'p': 3836 shift = 50; 3837 break; 3838 case 't': 3839 shift = 40; 3840 break; 3841 case 'g': 3842 shift = 30; 3843 break; 3844 case 'm': 3845 shift = 20; 3846 break; 3847 case 'k': 3848 shift = 10; 3849 break; 3850 case 'b': 3851 case '\0': /* No unit. */ 3852 *num = number; 3853 return (0); 3854 default: 3855 /* Unrecognized unit. */ 3856 return (-1); 3857 } 3858 3859 if ((number << shift) >> shift != number) { 3860 /* Overflow */ 3861 return (-1); 3862 } 3863 *num = number << shift; 3864 return (0); 3865} 3866 3867 3868/* 3869 * This routine could be used in the future to load default and/or saved 3870 * mode page parameters for a particuar lun. 3871 */ 3872static int 3873ctl_init_page_index(struct ctl_lun *lun) 3874{ 3875 int i, page_code; 3876 struct ctl_page_index *page_index; 3877 const char *value; 3878 uint64_t ival; 3879 3880 memcpy(&lun->mode_pages.index, page_index_template, 3881 sizeof(page_index_template)); 3882 3883 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 3884 3885 page_index = &lun->mode_pages.index[i]; 3886 if (lun->be_lun->lun_type == T_DIRECT && 3887 (page_index->page_flags & CTL_PAGE_FLAG_DIRECT) == 0) 3888 continue; 3889 if (lun->be_lun->lun_type == T_PROCESSOR && 3890 (page_index->page_flags & CTL_PAGE_FLAG_PROC) == 0) 3891 continue; 3892 if (lun->be_lun->lun_type == T_CDROM && 3893 (page_index->page_flags & CTL_PAGE_FLAG_CDROM) == 0) 3894 continue; 3895 3896 page_code = page_index->page_code & SMPH_PC_MASK; 3897 switch (page_code) { 3898 case SMS_RW_ERROR_RECOVERY_PAGE: { 3899 KASSERT(page_index->subpage == SMS_SUBPAGE_PAGE_0, 3900 ("subpage %#x for page %#x is incorrect!", 3901 page_index->subpage, page_code)); 3902 memcpy(&lun->mode_pages.rw_er_page[CTL_PAGE_CURRENT], 3903 &rw_er_page_default, 3904 sizeof(rw_er_page_default)); 3905 memcpy(&lun->mode_pages.rw_er_page[CTL_PAGE_CHANGEABLE], 3906 &rw_er_page_changeable, 3907 sizeof(rw_er_page_changeable)); 3908 memcpy(&lun->mode_pages.rw_er_page[CTL_PAGE_DEFAULT], 3909 &rw_er_page_default, 3910 sizeof(rw_er_page_default)); 3911 memcpy(&lun->mode_pages.rw_er_page[CTL_PAGE_SAVED], 3912 &rw_er_page_default, 3913 sizeof(rw_er_page_default)); 3914 page_index->page_data = 3915 (uint8_t *)lun->mode_pages.rw_er_page; 3916 break; 3917 } 3918 case SMS_FORMAT_DEVICE_PAGE: { 3919 struct scsi_format_page *format_page; 3920 3921 KASSERT(page_index->subpage == SMS_SUBPAGE_PAGE_0, 3922 ("subpage %#x for page %#x is incorrect!", 3923 page_index->subpage, page_code)); 3924 3925 /* 3926 * Sectors per track are set above. Bytes per 3927 * sector need to be set here on a per-LUN basis. 3928 */ 3929 memcpy(&lun->mode_pages.format_page[CTL_PAGE_CURRENT], 3930 &format_page_default, 3931 sizeof(format_page_default)); 3932 memcpy(&lun->mode_pages.format_page[ 3933 CTL_PAGE_CHANGEABLE], &format_page_changeable, 3934 sizeof(format_page_changeable)); 3935 memcpy(&lun->mode_pages.format_page[CTL_PAGE_DEFAULT], 3936 &format_page_default, 3937 sizeof(format_page_default)); 3938 memcpy(&lun->mode_pages.format_page[CTL_PAGE_SAVED], 3939 &format_page_default, 3940 sizeof(format_page_default)); 3941 3942 format_page = &lun->mode_pages.format_page[ 3943 CTL_PAGE_CURRENT]; 3944 scsi_ulto2b(lun->be_lun->blocksize, 3945 format_page->bytes_per_sector); 3946 3947 format_page = &lun->mode_pages.format_page[ 3948 CTL_PAGE_DEFAULT]; 3949 scsi_ulto2b(lun->be_lun->blocksize, 3950 format_page->bytes_per_sector); 3951 3952 format_page = &lun->mode_pages.format_page[ 3953 CTL_PAGE_SAVED]; 3954 scsi_ulto2b(lun->be_lun->blocksize, 3955 format_page->bytes_per_sector); 3956 3957 page_index->page_data = 3958 (uint8_t *)lun->mode_pages.format_page; 3959 break; 3960 } 3961 case SMS_RIGID_DISK_PAGE: { 3962 struct scsi_rigid_disk_page *rigid_disk_page; 3963 uint32_t sectors_per_cylinder; 3964 uint64_t cylinders; 3965#ifndef __XSCALE__ 3966 int shift; 3967#endif /* !__XSCALE__ */ 3968 3969 KASSERT(page_index->subpage == SMS_SUBPAGE_PAGE_0, 3970 ("subpage %#x for page %#x is incorrect!", 3971 page_index->subpage, page_code)); 3972 3973 /* 3974 * Rotation rate and sectors per track are set 3975 * above. We calculate the cylinders here based on 3976 * capacity. Due to the number of heads and 3977 * sectors per track we're using, smaller arrays 3978 * may turn out to have 0 cylinders. Linux and 3979 * FreeBSD don't pay attention to these mode pages 3980 * to figure out capacity, but Solaris does. It 3981 * seems to deal with 0 cylinders just fine, and 3982 * works out a fake geometry based on the capacity. 3983 */ 3984 memcpy(&lun->mode_pages.rigid_disk_page[ 3985 CTL_PAGE_DEFAULT], &rigid_disk_page_default, 3986 sizeof(rigid_disk_page_default)); 3987 memcpy(&lun->mode_pages.rigid_disk_page[ 3988 CTL_PAGE_CHANGEABLE],&rigid_disk_page_changeable, 3989 sizeof(rigid_disk_page_changeable)); 3990 3991 sectors_per_cylinder = CTL_DEFAULT_SECTORS_PER_TRACK * 3992 CTL_DEFAULT_HEADS; 3993 3994 /* 3995 * The divide method here will be more accurate, 3996 * probably, but results in floating point being 3997 * used in the kernel on i386 (__udivdi3()). On the 3998 * XScale, though, __udivdi3() is implemented in 3999 * software. 4000 * 4001 * The shift method for cylinder calculation is 4002 * accurate if sectors_per_cylinder is a power of 4003 * 2. Otherwise it might be slightly off -- you 4004 * might have a bit of a truncation problem. 4005 */ 4006#ifdef __XSCALE__ 4007 cylinders = (lun->be_lun->maxlba + 1) / 4008 sectors_per_cylinder; 4009#else 4010 for (shift = 31; shift > 0; shift--) { 4011 if (sectors_per_cylinder & (1 << shift)) 4012 break; 4013 } 4014 cylinders = (lun->be_lun->maxlba + 1) >> shift; 4015#endif 4016 4017 /* 4018 * We've basically got 3 bytes, or 24 bits for the 4019 * cylinder size in the mode page. If we're over, 4020 * just round down to 2^24. 4021 */ 4022 if (cylinders > 0xffffff) 4023 cylinders = 0xffffff; 4024 4025 rigid_disk_page = &lun->mode_pages.rigid_disk_page[ 4026 CTL_PAGE_DEFAULT]; 4027 scsi_ulto3b(cylinders, rigid_disk_page->cylinders); 4028 4029 if ((value = ctl_get_opt(&lun->be_lun->options, 4030 "rpm")) != NULL) { 4031 scsi_ulto2b(strtol(value, NULL, 0), 4032 rigid_disk_page->rotation_rate); 4033 } 4034 4035 memcpy(&lun->mode_pages.rigid_disk_page[CTL_PAGE_CURRENT], 4036 &lun->mode_pages.rigid_disk_page[CTL_PAGE_DEFAULT], 4037 sizeof(rigid_disk_page_default)); 4038 memcpy(&lun->mode_pages.rigid_disk_page[CTL_PAGE_SAVED], 4039 &lun->mode_pages.rigid_disk_page[CTL_PAGE_DEFAULT], 4040 sizeof(rigid_disk_page_default)); 4041 4042 page_index->page_data = 4043 (uint8_t *)lun->mode_pages.rigid_disk_page; 4044 break; 4045 } 4046 case SMS_VERIFY_ERROR_RECOVERY_PAGE: { 4047 KASSERT(page_index->subpage == SMS_SUBPAGE_PAGE_0, 4048 ("subpage %#x for page %#x is incorrect!", 4049 page_index->subpage, page_code)); 4050 memcpy(&lun->mode_pages.verify_er_page[CTL_PAGE_CURRENT], 4051 &verify_er_page_default, 4052 sizeof(verify_er_page_default)); 4053 memcpy(&lun->mode_pages.verify_er_page[CTL_PAGE_CHANGEABLE], 4054 &verify_er_page_changeable, 4055 sizeof(verify_er_page_changeable)); 4056 memcpy(&lun->mode_pages.verify_er_page[CTL_PAGE_DEFAULT], 4057 &verify_er_page_default, 4058 sizeof(verify_er_page_default)); 4059 memcpy(&lun->mode_pages.verify_er_page[CTL_PAGE_SAVED], 4060 &verify_er_page_default, 4061 sizeof(verify_er_page_default)); 4062 page_index->page_data = 4063 (uint8_t *)lun->mode_pages.verify_er_page; 4064 break; 4065 } 4066 case SMS_CACHING_PAGE: { 4067 struct scsi_caching_page *caching_page; 4068 4069 KASSERT(page_index->subpage == SMS_SUBPAGE_PAGE_0, 4070 ("subpage %#x for page %#x is incorrect!", 4071 page_index->subpage, page_code)); 4072 memcpy(&lun->mode_pages.caching_page[CTL_PAGE_DEFAULT], 4073 &caching_page_default, 4074 sizeof(caching_page_default)); 4075 memcpy(&lun->mode_pages.caching_page[ 4076 CTL_PAGE_CHANGEABLE], &caching_page_changeable, 4077 sizeof(caching_page_changeable)); 4078 memcpy(&lun->mode_pages.caching_page[CTL_PAGE_SAVED], 4079 &caching_page_default, 4080 sizeof(caching_page_default)); 4081 caching_page = &lun->mode_pages.caching_page[ 4082 CTL_PAGE_SAVED]; 4083 value = ctl_get_opt(&lun->be_lun->options, "writecache"); 4084 if (value != NULL && strcmp(value, "off") == 0) 4085 caching_page->flags1 &= ~SCP_WCE; 4086 value = ctl_get_opt(&lun->be_lun->options, "readcache"); 4087 if (value != NULL && strcmp(value, "off") == 0) 4088 caching_page->flags1 |= SCP_RCD; 4089 memcpy(&lun->mode_pages.caching_page[CTL_PAGE_CURRENT], 4090 &lun->mode_pages.caching_page[CTL_PAGE_SAVED], 4091 sizeof(caching_page_default)); 4092 page_index->page_data = 4093 (uint8_t *)lun->mode_pages.caching_page; 4094 break; 4095 } 4096 case SMS_CONTROL_MODE_PAGE: { 4097 switch (page_index->subpage) { 4098 case SMS_SUBPAGE_PAGE_0: { 4099 struct scsi_control_page *control_page; 4100 4101 memcpy(&lun->mode_pages.control_page[ 4102 CTL_PAGE_DEFAULT], 4103 &control_page_default, 4104 sizeof(control_page_default)); 4105 memcpy(&lun->mode_pages.control_page[ 4106 CTL_PAGE_CHANGEABLE], 4107 &control_page_changeable, 4108 sizeof(control_page_changeable)); 4109 memcpy(&lun->mode_pages.control_page[ 4110 CTL_PAGE_SAVED], 4111 &control_page_default, 4112 sizeof(control_page_default)); 4113 control_page = &lun->mode_pages.control_page[ 4114 CTL_PAGE_SAVED]; 4115 value = ctl_get_opt(&lun->be_lun->options, 4116 "reordering"); 4117 if (value != NULL && 4118 strcmp(value, "unrestricted") == 0) { 4119 control_page->queue_flags &= 4120 ~SCP_QUEUE_ALG_MASK; 4121 control_page->queue_flags |= 4122 SCP_QUEUE_ALG_UNRESTRICTED; 4123 } 4124 memcpy(&lun->mode_pages.control_page[ 4125 CTL_PAGE_CURRENT], 4126 &lun->mode_pages.control_page[ 4127 CTL_PAGE_SAVED], 4128 sizeof(control_page_default)); 4129 page_index->page_data = 4130 (uint8_t *)lun->mode_pages.control_page; 4131 break; 4132 } 4133 case 0x01: 4134 memcpy(&lun->mode_pages.control_ext_page[ 4135 CTL_PAGE_DEFAULT], 4136 &control_ext_page_default, 4137 sizeof(control_ext_page_default)); 4138 memcpy(&lun->mode_pages.control_ext_page[ 4139 CTL_PAGE_CHANGEABLE], 4140 &control_ext_page_changeable, 4141 sizeof(control_ext_page_changeable)); 4142 memcpy(&lun->mode_pages.control_ext_page[ 4143 CTL_PAGE_SAVED], 4144 &control_ext_page_default, 4145 sizeof(control_ext_page_default)); 4146 memcpy(&lun->mode_pages.control_ext_page[ 4147 CTL_PAGE_CURRENT], 4148 &lun->mode_pages.control_ext_page[ 4149 CTL_PAGE_SAVED], 4150 sizeof(control_ext_page_default)); 4151 page_index->page_data = 4152 (uint8_t *)lun->mode_pages.control_ext_page; 4153 break; 4154 default: 4155 panic("subpage %#x for page %#x is incorrect!", 4156 page_index->subpage, page_code); 4157 } 4158 break; 4159 } 4160 case SMS_INFO_EXCEPTIONS_PAGE: { 4161 switch (page_index->subpage) { 4162 case SMS_SUBPAGE_PAGE_0: 4163 memcpy(&lun->mode_pages.ie_page[CTL_PAGE_CURRENT], 4164 &ie_page_default, 4165 sizeof(ie_page_default)); 4166 memcpy(&lun->mode_pages.ie_page[ 4167 CTL_PAGE_CHANGEABLE], &ie_page_changeable, 4168 sizeof(ie_page_changeable)); 4169 memcpy(&lun->mode_pages.ie_page[CTL_PAGE_DEFAULT], 4170 &ie_page_default, 4171 sizeof(ie_page_default)); 4172 memcpy(&lun->mode_pages.ie_page[CTL_PAGE_SAVED], 4173 &ie_page_default, 4174 sizeof(ie_page_default)); 4175 page_index->page_data = 4176 (uint8_t *)lun->mode_pages.ie_page; 4177 break; 4178 case 0x02: { 4179 struct ctl_logical_block_provisioning_page *page; 4180 4181 memcpy(&lun->mode_pages.lbp_page[CTL_PAGE_DEFAULT], 4182 &lbp_page_default, 4183 sizeof(lbp_page_default)); 4184 memcpy(&lun->mode_pages.lbp_page[ 4185 CTL_PAGE_CHANGEABLE], &lbp_page_changeable, 4186 sizeof(lbp_page_changeable)); 4187 memcpy(&lun->mode_pages.lbp_page[CTL_PAGE_SAVED], 4188 &lbp_page_default, 4189 sizeof(lbp_page_default)); 4190 page = &lun->mode_pages.lbp_page[CTL_PAGE_SAVED]; 4191 value = ctl_get_opt(&lun->be_lun->options, 4192 "avail-threshold"); 4193 if (value != NULL && 4194 ctl_expand_number(value, &ival) == 0) { 4195 page->descr[0].flags |= SLBPPD_ENABLED | 4196 SLBPPD_ARMING_DEC; 4197 if (lun->be_lun->blocksize) 4198 ival /= lun->be_lun->blocksize; 4199 else 4200 ival /= 512; 4201 scsi_ulto4b(ival >> CTL_LBP_EXPONENT, 4202 page->descr[0].count); 4203 } 4204 value = ctl_get_opt(&lun->be_lun->options, 4205 "used-threshold"); 4206 if (value != NULL && 4207 ctl_expand_number(value, &ival) == 0) { 4208 page->descr[1].flags |= SLBPPD_ENABLED | 4209 SLBPPD_ARMING_INC; 4210 if (lun->be_lun->blocksize) 4211 ival /= lun->be_lun->blocksize; 4212 else 4213 ival /= 512; 4214 scsi_ulto4b(ival >> CTL_LBP_EXPONENT, 4215 page->descr[1].count); 4216 } 4217 value = ctl_get_opt(&lun->be_lun->options, 4218 "pool-avail-threshold"); 4219 if (value != NULL && 4220 ctl_expand_number(value, &ival) == 0) { 4221 page->descr[2].flags |= SLBPPD_ENABLED | 4222 SLBPPD_ARMING_DEC; 4223 if (lun->be_lun->blocksize) 4224 ival /= lun->be_lun->blocksize; 4225 else 4226 ival /= 512; 4227 scsi_ulto4b(ival >> CTL_LBP_EXPONENT, 4228 page->descr[2].count); 4229 } 4230 value = ctl_get_opt(&lun->be_lun->options, 4231 "pool-used-threshold"); 4232 if (value != NULL && 4233 ctl_expand_number(value, &ival) == 0) { 4234 page->descr[3].flags |= SLBPPD_ENABLED | 4235 SLBPPD_ARMING_INC; 4236 if (lun->be_lun->blocksize) 4237 ival /= lun->be_lun->blocksize; 4238 else 4239 ival /= 512; 4240 scsi_ulto4b(ival >> CTL_LBP_EXPONENT, 4241 page->descr[3].count); 4242 } 4243 memcpy(&lun->mode_pages.lbp_page[CTL_PAGE_CURRENT], 4244 &lun->mode_pages.lbp_page[CTL_PAGE_SAVED], 4245 sizeof(lbp_page_default)); 4246 page_index->page_data = 4247 (uint8_t *)lun->mode_pages.lbp_page; 4248 break; 4249 } 4250 default: 4251 panic("subpage %#x for page %#x is incorrect!", 4252 page_index->subpage, page_code); 4253 } 4254 break; 4255 } 4256 case SMS_CDDVD_CAPS_PAGE:{ 4257 KASSERT(page_index->subpage == SMS_SUBPAGE_PAGE_0, 4258 ("subpage %#x for page %#x is incorrect!", 4259 page_index->subpage, page_code)); 4260 memcpy(&lun->mode_pages.cddvd_page[CTL_PAGE_DEFAULT], 4261 &cddvd_page_default, 4262 sizeof(cddvd_page_default)); 4263 memcpy(&lun->mode_pages.cddvd_page[ 4264 CTL_PAGE_CHANGEABLE], &cddvd_page_changeable, 4265 sizeof(cddvd_page_changeable)); 4266 memcpy(&lun->mode_pages.cddvd_page[CTL_PAGE_SAVED], 4267 &cddvd_page_default, 4268 sizeof(cddvd_page_default)); 4269 memcpy(&lun->mode_pages.cddvd_page[CTL_PAGE_CURRENT], 4270 &lun->mode_pages.cddvd_page[CTL_PAGE_SAVED], 4271 sizeof(cddvd_page_default)); 4272 page_index->page_data = 4273 (uint8_t *)lun->mode_pages.cddvd_page; 4274 break; 4275 } 4276 default: 4277 panic("invalid page code value %#x", page_code); 4278 } 4279 } 4280 4281 return (CTL_RETVAL_COMPLETE); 4282} 4283 4284static int 4285ctl_init_log_page_index(struct ctl_lun *lun) 4286{ 4287 struct ctl_page_index *page_index; 4288 int i, j, k, prev; 4289 4290 memcpy(&lun->log_pages.index, log_page_index_template, 4291 sizeof(log_page_index_template)); 4292 4293 prev = -1; 4294 for (i = 0, j = 0, k = 0; i < CTL_NUM_LOG_PAGES; i++) { 4295 4296 page_index = &lun->log_pages.index[i]; 4297 if (lun->be_lun->lun_type == T_DIRECT && 4298 (page_index->page_flags & CTL_PAGE_FLAG_DIRECT) == 0) 4299 continue; 4300 if (lun->be_lun->lun_type == T_PROCESSOR && 4301 (page_index->page_flags & CTL_PAGE_FLAG_PROC) == 0) 4302 continue; 4303 if (lun->be_lun->lun_type == T_CDROM && 4304 (page_index->page_flags & CTL_PAGE_FLAG_CDROM) == 0) 4305 continue; 4306 4307 if (page_index->page_code == SLS_LOGICAL_BLOCK_PROVISIONING && 4308 lun->backend->lun_attr == NULL) 4309 continue; 4310 4311 if (page_index->page_code != prev) { 4312 lun->log_pages.pages_page[j] = page_index->page_code; 4313 prev = page_index->page_code; 4314 j++; 4315 } 4316 lun->log_pages.subpages_page[k*2] = page_index->page_code; 4317 lun->log_pages.subpages_page[k*2+1] = page_index->subpage; 4318 k++; 4319 } 4320 lun->log_pages.index[0].page_data = &lun->log_pages.pages_page[0]; 4321 lun->log_pages.index[0].page_len = j; 4322 lun->log_pages.index[1].page_data = &lun->log_pages.subpages_page[0]; 4323 lun->log_pages.index[1].page_len = k * 2; 4324 lun->log_pages.index[2].page_data = &lun->log_pages.lbp_page[0]; 4325 lun->log_pages.index[2].page_len = 12*CTL_NUM_LBP_PARAMS; 4326 lun->log_pages.index[3].page_data = (uint8_t *)&lun->log_pages.stat_page; 4327 lun->log_pages.index[3].page_len = sizeof(lun->log_pages.stat_page); 4328 lun->log_pages.index[4].page_data = (uint8_t *)&lun->log_pages.ie_page; 4329 lun->log_pages.index[4].page_len = sizeof(lun->log_pages.ie_page); 4330 4331 return (CTL_RETVAL_COMPLETE); 4332} 4333 4334static int 4335hex2bin(const char *str, uint8_t *buf, int buf_size) 4336{ 4337 int i; 4338 u_char c; 4339 4340 memset(buf, 0, buf_size); 4341 while (isspace(str[0])) 4342 str++; 4343 if (str[0] == '0' && (str[1] == 'x' || str[1] == 'X')) 4344 str += 2; 4345 buf_size *= 2; 4346 for (i = 0; str[i] != 0 && i < buf_size; i++) { 4347 while (str[i] == '-') /* Skip dashes in UUIDs. */ 4348 str++; 4349 c = str[i]; 4350 if (isdigit(c)) 4351 c -= '0'; 4352 else if (isalpha(c)) 4353 c -= isupper(c) ? 'A' - 10 : 'a' - 10; 4354 else 4355 break; 4356 if (c >= 16) 4357 break; 4358 if ((i & 1) == 0) 4359 buf[i / 2] |= (c << 4); 4360 else 4361 buf[i / 2] |= c; 4362 } 4363 return ((i + 1) / 2); 4364} 4365 4366/* 4367 * LUN allocation. 4368 * 4369 * Requirements: 4370 * - caller allocates and zeros LUN storage, or passes in a NULL LUN if he 4371 * wants us to allocate the LUN and he can block. 4372 * - ctl_softc is always set 4373 * - be_lun is set if the LUN has a backend (needed for disk LUNs) 4374 * 4375 * Returns 0 for success, non-zero (errno) for failure. 4376 */ 4377static int 4378ctl_alloc_lun(struct ctl_softc *ctl_softc, struct ctl_lun *ctl_lun, 4379 struct ctl_be_lun *const be_lun) 4380{ 4381 struct ctl_lun *nlun, *lun; 4382 struct scsi_vpd_id_descriptor *desc; 4383 struct scsi_vpd_id_t10 *t10id; 4384 const char *eui, *naa, *scsiname, *uuid, *vendor, *value; 4385 int lun_number, i, lun_malloced; 4386 int devidlen, idlen1, idlen2 = 0, len; 4387 4388 if (be_lun == NULL) 4389 return (EINVAL); 4390 4391 /* 4392 * We currently only support Direct Access or Processor LUN types. 4393 */ 4394 switch (be_lun->lun_type) { 4395 case T_DIRECT: 4396 case T_PROCESSOR: 4397 case T_CDROM: 4398 break; 4399 case T_SEQUENTIAL: 4400 case T_CHANGER: 4401 default: 4402 be_lun->lun_config_status(be_lun->be_lun, 4403 CTL_LUN_CONFIG_FAILURE); 4404 break; 4405 } 4406 if (ctl_lun == NULL) { 4407 lun = malloc(sizeof(*lun), M_CTL, M_WAITOK); 4408 lun_malloced = 1; 4409 } else { 4410 lun_malloced = 0; 4411 lun = ctl_lun; 4412 } 4413 4414 memset(lun, 0, sizeof(*lun)); 4415 if (lun_malloced) 4416 lun->flags = CTL_LUN_MALLOCED; 4417 4418 /* Generate LUN ID. */ 4419 devidlen = max(CTL_DEVID_MIN_LEN, 4420 strnlen(be_lun->device_id, CTL_DEVID_LEN)); 4421 idlen1 = sizeof(*t10id) + devidlen; 4422 len = sizeof(struct scsi_vpd_id_descriptor) + idlen1; 4423 scsiname = ctl_get_opt(&be_lun->options, "scsiname"); 4424 if (scsiname != NULL) { 4425 idlen2 = roundup2(strlen(scsiname) + 1, 4); 4426 len += sizeof(struct scsi_vpd_id_descriptor) + idlen2; 4427 } 4428 eui = ctl_get_opt(&be_lun->options, "eui"); 4429 if (eui != NULL) { 4430 len += sizeof(struct scsi_vpd_id_descriptor) + 16; 4431 } 4432 naa = ctl_get_opt(&be_lun->options, "naa"); 4433 if (naa != NULL) { 4434 len += sizeof(struct scsi_vpd_id_descriptor) + 16; 4435 } 4436 uuid = ctl_get_opt(&be_lun->options, "uuid"); 4437 if (uuid != NULL) { 4438 len += sizeof(struct scsi_vpd_id_descriptor) + 18; 4439 } 4440 lun->lun_devid = malloc(sizeof(struct ctl_devid) + len, 4441 M_CTL, M_WAITOK | M_ZERO); 4442 desc = (struct scsi_vpd_id_descriptor *)lun->lun_devid->data; 4443 desc->proto_codeset = SVPD_ID_CODESET_ASCII; 4444 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | SVPD_ID_TYPE_T10; 4445 desc->length = idlen1; 4446 t10id = (struct scsi_vpd_id_t10 *)&desc->identifier[0]; 4447 memset(t10id->vendor, ' ', sizeof(t10id->vendor)); 4448 if ((vendor = ctl_get_opt(&be_lun->options, "vendor")) == NULL) { 4449 strncpy((char *)t10id->vendor, CTL_VENDOR, sizeof(t10id->vendor)); 4450 } else { 4451 strncpy(t10id->vendor, vendor, 4452 min(sizeof(t10id->vendor), strlen(vendor))); 4453 } 4454 strncpy((char *)t10id->vendor_spec_id, 4455 (char *)be_lun->device_id, devidlen); 4456 if (scsiname != NULL) { 4457 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 4458 desc->length); 4459 desc->proto_codeset = SVPD_ID_CODESET_UTF8; 4460 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | 4461 SVPD_ID_TYPE_SCSI_NAME; 4462 desc->length = idlen2; 4463 strlcpy(desc->identifier, scsiname, idlen2); 4464 } 4465 if (eui != NULL) { 4466 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 4467 desc->length); 4468 desc->proto_codeset = SVPD_ID_CODESET_BINARY; 4469 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | 4470 SVPD_ID_TYPE_EUI64; 4471 desc->length = hex2bin(eui, desc->identifier, 16); 4472 desc->length = desc->length > 12 ? 16 : 4473 (desc->length > 8 ? 12 : 8); 4474 len -= 16 - desc->length; 4475 } 4476 if (naa != NULL) { 4477 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 4478 desc->length); 4479 desc->proto_codeset = SVPD_ID_CODESET_BINARY; 4480 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | 4481 SVPD_ID_TYPE_NAA; 4482 desc->length = hex2bin(naa, desc->identifier, 16); 4483 desc->length = desc->length > 8 ? 16 : 8; 4484 len -= 16 - desc->length; 4485 } 4486 if (uuid != NULL) { 4487 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 4488 desc->length); 4489 desc->proto_codeset = SVPD_ID_CODESET_BINARY; 4490 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | 4491 SVPD_ID_TYPE_UUID; 4492 desc->identifier[0] = 0x10; 4493 hex2bin(uuid, &desc->identifier[2], 16); 4494 desc->length = 18; 4495 } 4496 lun->lun_devid->len = len; 4497 4498 mtx_lock(&ctl_softc->ctl_lock); 4499 /* 4500 * See if the caller requested a particular LUN number. If so, see 4501 * if it is available. Otherwise, allocate the first available LUN. 4502 */ 4503 if (be_lun->flags & CTL_LUN_FLAG_ID_REQ) { 4504 if ((be_lun->req_lun_id > (CTL_MAX_LUNS - 1)) 4505 || (ctl_is_set(ctl_softc->ctl_lun_mask, be_lun->req_lun_id))) { 4506 mtx_unlock(&ctl_softc->ctl_lock); 4507 if (be_lun->req_lun_id > (CTL_MAX_LUNS - 1)) { 4508 printf("ctl: requested LUN ID %d is higher " 4509 "than CTL_MAX_LUNS - 1 (%d)\n", 4510 be_lun->req_lun_id, CTL_MAX_LUNS - 1); 4511 } else { 4512 /* 4513 * XXX KDM return an error, or just assign 4514 * another LUN ID in this case?? 4515 */ 4516 printf("ctl: requested LUN ID %d is already " 4517 "in use\n", be_lun->req_lun_id); 4518 } 4519 if (lun->flags & CTL_LUN_MALLOCED) 4520 free(lun, M_CTL); 4521 be_lun->lun_config_status(be_lun->be_lun, 4522 CTL_LUN_CONFIG_FAILURE); 4523 return (ENOSPC); 4524 } 4525 lun_number = be_lun->req_lun_id; 4526 } else { 4527 lun_number = ctl_ffz(ctl_softc->ctl_lun_mask, 0, CTL_MAX_LUNS); 4528 if (lun_number == -1) { 4529 mtx_unlock(&ctl_softc->ctl_lock); 4530 printf("ctl: can't allocate LUN, out of LUNs\n"); 4531 if (lun->flags & CTL_LUN_MALLOCED) 4532 free(lun, M_CTL); 4533 be_lun->lun_config_status(be_lun->be_lun, 4534 CTL_LUN_CONFIG_FAILURE); 4535 return (ENOSPC); 4536 } 4537 } 4538 ctl_set_mask(ctl_softc->ctl_lun_mask, lun_number); 4539 4540 mtx_init(&lun->lun_lock, "CTL LUN", NULL, MTX_DEF); 4541 lun->lun = lun_number; 4542 lun->be_lun = be_lun; 4543 /* 4544 * The processor LUN is always enabled. Disk LUNs come on line 4545 * disabled, and must be enabled by the backend. 4546 */ 4547 lun->flags |= CTL_LUN_DISABLED; 4548 lun->backend = be_lun->be; 4549 be_lun->ctl_lun = lun; 4550 be_lun->lun_id = lun_number; 4551 atomic_add_int(&be_lun->be->num_luns, 1); 4552 if (be_lun->flags & CTL_LUN_FLAG_EJECTED) 4553 lun->flags |= CTL_LUN_EJECTED; 4554 if (be_lun->flags & CTL_LUN_FLAG_NO_MEDIA) 4555 lun->flags |= CTL_LUN_NO_MEDIA; 4556 if (be_lun->flags & CTL_LUN_FLAG_STOPPED) 4557 lun->flags |= CTL_LUN_STOPPED; 4558 4559 if (be_lun->flags & CTL_LUN_FLAG_PRIMARY) 4560 lun->flags |= CTL_LUN_PRIMARY_SC; 4561 4562 value = ctl_get_opt(&be_lun->options, "removable"); 4563 if (value != NULL) { 4564 if (strcmp(value, "on") == 0) 4565 lun->flags |= CTL_LUN_REMOVABLE; 4566 } else if (be_lun->lun_type == T_CDROM) 4567 lun->flags |= CTL_LUN_REMOVABLE; 4568 4569 lun->ctl_softc = ctl_softc; 4570#ifdef CTL_TIME_IO 4571 lun->last_busy = getsbinuptime(); 4572#endif 4573 TAILQ_INIT(&lun->ooa_queue); 4574 TAILQ_INIT(&lun->blocked_queue); 4575 STAILQ_INIT(&lun->error_list); 4576 lun->ie_reported = 1; 4577 callout_init_mtx(&lun->ie_callout, &lun->lun_lock, 0); 4578 ctl_tpc_lun_init(lun); 4579 4580 /* 4581 * Initialize the mode and log page index. 4582 */ 4583 ctl_init_page_index(lun); 4584 ctl_init_log_page_index(lun); 4585 4586 /* 4587 * Now, before we insert this lun on the lun list, set the lun 4588 * inventory changed UA for all other luns. 4589 */ 4590 STAILQ_FOREACH(nlun, &ctl_softc->lun_list, links) { 4591 mtx_lock(&nlun->lun_lock); 4592 ctl_est_ua_all(nlun, -1, CTL_UA_LUN_CHANGE); 4593 mtx_unlock(&nlun->lun_lock); 4594 } 4595 4596 STAILQ_INSERT_TAIL(&ctl_softc->lun_list, lun, links); 4597 4598 ctl_softc->ctl_luns[lun_number] = lun; 4599 4600 ctl_softc->num_luns++; 4601 4602 /* Setup statistics gathering */ 4603 lun->stats.device_type = be_lun->lun_type; 4604 lun->stats.lun_number = lun_number; 4605 lun->stats.blocksize = be_lun->blocksize; 4606 if (be_lun->blocksize == 0) 4607 lun->stats.flags = CTL_LUN_STATS_NO_BLOCKSIZE; 4608 for (i = 0;i < CTL_MAX_PORTS;i++) 4609 lun->stats.ports[i].targ_port = i; 4610 4611 mtx_unlock(&ctl_softc->ctl_lock); 4612 4613 lun->be_lun->lun_config_status(lun->be_lun->be_lun, CTL_LUN_CONFIG_OK); 4614 return (0); 4615} 4616 4617/* 4618 * Delete a LUN. 4619 * Assumptions: 4620 * - LUN has already been marked invalid and any pending I/O has been taken 4621 * care of. 4622 */ 4623static int 4624ctl_free_lun(struct ctl_lun *lun) 4625{ 4626 struct ctl_softc *softc = lun->ctl_softc; 4627 struct ctl_lun *nlun; 4628 int i; 4629 4630 mtx_assert(&softc->ctl_lock, MA_OWNED); 4631 4632 STAILQ_REMOVE(&softc->lun_list, lun, ctl_lun, links); 4633 4634 ctl_clear_mask(softc->ctl_lun_mask, lun->lun); 4635 4636 softc->ctl_luns[lun->lun] = NULL; 4637 4638 if (!TAILQ_EMPTY(&lun->ooa_queue)) 4639 panic("Freeing a LUN %p with outstanding I/O!!\n", lun); 4640 4641 softc->num_luns--; 4642 4643 /* 4644 * Tell the backend to free resources, if this LUN has a backend. 4645 */ 4646 atomic_subtract_int(&lun->be_lun->be->num_luns, 1); 4647 lun->be_lun->lun_shutdown(lun->be_lun->be_lun); 4648 4649 lun->ie_reportcnt = UINT32_MAX; 4650 callout_drain(&lun->ie_callout); 4651 4652 ctl_tpc_lun_shutdown(lun); 4653 mtx_destroy(&lun->lun_lock); 4654 free(lun->lun_devid, M_CTL); 4655 for (i = 0; i < CTL_MAX_PORTS; i++) 4656 free(lun->pending_ua[i], M_CTL); 4657 for (i = 0; i < CTL_MAX_PORTS; i++) 4658 free(lun->pr_keys[i], M_CTL); 4659 free(lun->write_buffer, M_CTL); 4660 if (lun->flags & CTL_LUN_MALLOCED) 4661 free(lun, M_CTL); 4662 4663 STAILQ_FOREACH(nlun, &softc->lun_list, links) { 4664 mtx_lock(&nlun->lun_lock); 4665 ctl_est_ua_all(nlun, -1, CTL_UA_LUN_CHANGE); 4666 mtx_unlock(&nlun->lun_lock); 4667 } 4668 4669 return (0); 4670} 4671 4672static void 4673ctl_create_lun(struct ctl_be_lun *be_lun) 4674{ 4675 4676 /* 4677 * ctl_alloc_lun() should handle all potential failure cases. 4678 */ 4679 ctl_alloc_lun(control_softc, NULL, be_lun); 4680} 4681 4682int 4683ctl_add_lun(struct ctl_be_lun *be_lun) 4684{ 4685 struct ctl_softc *softc = control_softc; 4686 4687 mtx_lock(&softc->ctl_lock); 4688 STAILQ_INSERT_TAIL(&softc->pending_lun_queue, be_lun, links); 4689 mtx_unlock(&softc->ctl_lock); 4690 wakeup(&softc->pending_lun_queue); 4691 4692 return (0); 4693} 4694 4695int 4696ctl_enable_lun(struct ctl_be_lun *be_lun) 4697{ 4698 struct ctl_softc *softc; 4699 struct ctl_port *port, *nport; 4700 struct ctl_lun *lun; 4701 int retval; 4702 4703 lun = (struct ctl_lun *)be_lun->ctl_lun; 4704 softc = lun->ctl_softc; 4705 4706 mtx_lock(&softc->ctl_lock); 4707 mtx_lock(&lun->lun_lock); 4708 if ((lun->flags & CTL_LUN_DISABLED) == 0) { 4709 /* 4710 * eh? Why did we get called if the LUN is already 4711 * enabled? 4712 */ 4713 mtx_unlock(&lun->lun_lock); 4714 mtx_unlock(&softc->ctl_lock); 4715 return (0); 4716 } 4717 lun->flags &= ~CTL_LUN_DISABLED; 4718 mtx_unlock(&lun->lun_lock); 4719 4720 STAILQ_FOREACH_SAFE(port, &softc->port_list, links, nport) { 4721 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0 || 4722 port->lun_map != NULL || port->lun_enable == NULL) 4723 continue; 4724 4725 /* 4726 * Drop the lock while we call the FETD's enable routine. 4727 * This can lead to a callback into CTL (at least in the 4728 * case of the internal initiator frontend. 4729 */ 4730 mtx_unlock(&softc->ctl_lock); 4731 retval = port->lun_enable(port->targ_lun_arg, lun->lun); 4732 mtx_lock(&softc->ctl_lock); 4733 if (retval != 0) { 4734 printf("%s: FETD %s port %d returned error " 4735 "%d for lun_enable on lun %jd\n", 4736 __func__, port->port_name, port->targ_port, 4737 retval, (intmax_t)lun->lun); 4738 } 4739 } 4740 4741 mtx_unlock(&softc->ctl_lock); 4742 ctl_isc_announce_lun(lun); 4743 4744 return (0); 4745} 4746 4747int 4748ctl_disable_lun(struct ctl_be_lun *be_lun) 4749{ 4750 struct ctl_softc *softc; 4751 struct ctl_port *port; 4752 struct ctl_lun *lun; 4753 int retval; 4754 4755 lun = (struct ctl_lun *)be_lun->ctl_lun; 4756 softc = lun->ctl_softc; 4757 4758 mtx_lock(&softc->ctl_lock); 4759 mtx_lock(&lun->lun_lock); 4760 if (lun->flags & CTL_LUN_DISABLED) { 4761 mtx_unlock(&lun->lun_lock); 4762 mtx_unlock(&softc->ctl_lock); 4763 return (0); 4764 } 4765 lun->flags |= CTL_LUN_DISABLED; 4766 mtx_unlock(&lun->lun_lock); 4767 4768 STAILQ_FOREACH(port, &softc->port_list, links) { 4769 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0 || 4770 port->lun_map != NULL || port->lun_disable == NULL) 4771 continue; 4772 4773 /* 4774 * Drop the lock before we call the frontend's disable 4775 * routine, to avoid lock order reversals. 4776 * 4777 * XXX KDM what happens if the frontend list changes while 4778 * we're traversing it? It's unlikely, but should be handled. 4779 */ 4780 mtx_unlock(&softc->ctl_lock); 4781 retval = port->lun_disable(port->targ_lun_arg, lun->lun); 4782 mtx_lock(&softc->ctl_lock); 4783 if (retval != 0) { 4784 printf("%s: FETD %s port %d returned error " 4785 "%d for lun_disable on lun %jd\n", 4786 __func__, port->port_name, port->targ_port, 4787 retval, (intmax_t)lun->lun); 4788 } 4789 } 4790 4791 mtx_unlock(&softc->ctl_lock); 4792 ctl_isc_announce_lun(lun); 4793 4794 return (0); 4795} 4796 4797int 4798ctl_start_lun(struct ctl_be_lun *be_lun) 4799{ 4800 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 4801 4802 mtx_lock(&lun->lun_lock); 4803 lun->flags &= ~CTL_LUN_STOPPED; 4804 mtx_unlock(&lun->lun_lock); 4805 return (0); 4806} 4807 4808int 4809ctl_stop_lun(struct ctl_be_lun *be_lun) 4810{ 4811 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 4812 4813 mtx_lock(&lun->lun_lock); 4814 lun->flags |= CTL_LUN_STOPPED; 4815 mtx_unlock(&lun->lun_lock); 4816 return (0); 4817} 4818 4819int 4820ctl_lun_no_media(struct ctl_be_lun *be_lun) 4821{ 4822 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 4823 4824 mtx_lock(&lun->lun_lock); 4825 lun->flags |= CTL_LUN_NO_MEDIA; 4826 mtx_unlock(&lun->lun_lock); 4827 return (0); 4828} 4829 4830int 4831ctl_lun_has_media(struct ctl_be_lun *be_lun) 4832{ 4833 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 4834 union ctl_ha_msg msg; 4835 4836 mtx_lock(&lun->lun_lock); 4837 lun->flags &= ~(CTL_LUN_NO_MEDIA | CTL_LUN_EJECTED); 4838 if (lun->flags & CTL_LUN_REMOVABLE) 4839 ctl_est_ua_all(lun, -1, CTL_UA_MEDIUM_CHANGE); 4840 mtx_unlock(&lun->lun_lock); 4841 if ((lun->flags & CTL_LUN_REMOVABLE) && 4842 lun->ctl_softc->ha_mode == CTL_HA_MODE_XFER) { 4843 bzero(&msg.ua, sizeof(msg.ua)); 4844 msg.hdr.msg_type = CTL_MSG_UA; 4845 msg.hdr.nexus.initid = -1; 4846 msg.hdr.nexus.targ_port = -1; 4847 msg.hdr.nexus.targ_lun = lun->lun; 4848 msg.hdr.nexus.targ_mapped_lun = lun->lun; 4849 msg.ua.ua_all = 1; 4850 msg.ua.ua_set = 1; 4851 msg.ua.ua_type = CTL_UA_MEDIUM_CHANGE; 4852 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, sizeof(msg.ua), 4853 M_WAITOK); 4854 } 4855 return (0); 4856} 4857 4858int 4859ctl_lun_ejected(struct ctl_be_lun *be_lun) 4860{ 4861 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 4862 4863 mtx_lock(&lun->lun_lock); 4864 lun->flags |= CTL_LUN_EJECTED; 4865 mtx_unlock(&lun->lun_lock); 4866 return (0); 4867} 4868 4869int 4870ctl_lun_primary(struct ctl_be_lun *be_lun) 4871{ 4872 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 4873 4874 mtx_lock(&lun->lun_lock); 4875 lun->flags |= CTL_LUN_PRIMARY_SC; 4876 ctl_est_ua_all(lun, -1, CTL_UA_ASYM_ACC_CHANGE); 4877 mtx_unlock(&lun->lun_lock); 4878 ctl_isc_announce_lun(lun); 4879 return (0); 4880} 4881 4882int 4883ctl_lun_secondary(struct ctl_be_lun *be_lun) 4884{ 4885 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 4886 4887 mtx_lock(&lun->lun_lock); 4888 lun->flags &= ~CTL_LUN_PRIMARY_SC; 4889 ctl_est_ua_all(lun, -1, CTL_UA_ASYM_ACC_CHANGE); 4890 mtx_unlock(&lun->lun_lock); 4891 ctl_isc_announce_lun(lun); 4892 return (0); 4893} 4894 4895int 4896ctl_invalidate_lun(struct ctl_be_lun *be_lun) 4897{ 4898 struct ctl_softc *softc; 4899 struct ctl_lun *lun; 4900 4901 lun = (struct ctl_lun *)be_lun->ctl_lun; 4902 softc = lun->ctl_softc; 4903 4904 mtx_lock(&lun->lun_lock); 4905 4906 /* 4907 * The LUN needs to be disabled before it can be marked invalid. 4908 */ 4909 if ((lun->flags & CTL_LUN_DISABLED) == 0) { 4910 mtx_unlock(&lun->lun_lock); 4911 return (-1); 4912 } 4913 /* 4914 * Mark the LUN invalid. 4915 */ 4916 lun->flags |= CTL_LUN_INVALID; 4917 4918 /* 4919 * If there is nothing in the OOA queue, go ahead and free the LUN. 4920 * If we have something in the OOA queue, we'll free it when the 4921 * last I/O completes. 4922 */ 4923 if (TAILQ_EMPTY(&lun->ooa_queue)) { 4924 mtx_unlock(&lun->lun_lock); 4925 mtx_lock(&softc->ctl_lock); 4926 ctl_free_lun(lun); 4927 mtx_unlock(&softc->ctl_lock); 4928 } else 4929 mtx_unlock(&lun->lun_lock); 4930 4931 return (0); 4932} 4933 4934void 4935ctl_lun_capacity_changed(struct ctl_be_lun *be_lun) 4936{ 4937 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 4938 union ctl_ha_msg msg; 4939 4940 mtx_lock(&lun->lun_lock); 4941 ctl_est_ua_all(lun, -1, CTL_UA_CAPACITY_CHANGE); 4942 mtx_unlock(&lun->lun_lock); 4943 if (lun->ctl_softc->ha_mode == CTL_HA_MODE_XFER) { 4944 /* Send msg to other side. */ 4945 bzero(&msg.ua, sizeof(msg.ua)); 4946 msg.hdr.msg_type = CTL_MSG_UA; 4947 msg.hdr.nexus.initid = -1; 4948 msg.hdr.nexus.targ_port = -1; 4949 msg.hdr.nexus.targ_lun = lun->lun; 4950 msg.hdr.nexus.targ_mapped_lun = lun->lun; 4951 msg.ua.ua_all = 1; 4952 msg.ua.ua_set = 1; 4953 msg.ua.ua_type = CTL_UA_CAPACITY_CHANGE; 4954 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, sizeof(msg.ua), 4955 M_WAITOK); 4956 } 4957} 4958 4959/* 4960 * Backend "memory move is complete" callback for requests that never 4961 * make it down to say RAIDCore's configuration code. 4962 */ 4963int 4964ctl_config_move_done(union ctl_io *io) 4965{ 4966 int retval; 4967 4968 CTL_DEBUG_PRINT(("ctl_config_move_done\n")); 4969 KASSERT(io->io_hdr.io_type == CTL_IO_SCSI, 4970 ("Config I/O type isn't CTL_IO_SCSI (%d)!", io->io_hdr.io_type)); 4971 4972 if ((io->io_hdr.port_status != 0) && 4973 ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE || 4974 (io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS)) { 4975 /* 4976 * For hardware error sense keys, the sense key 4977 * specific value is defined to be a retry count, 4978 * but we use it to pass back an internal FETD 4979 * error code. XXX KDM Hopefully the FETD is only 4980 * using 16 bits for an error code, since that's 4981 * all the space we have in the sks field. 4982 */ 4983 ctl_set_internal_failure(&io->scsiio, 4984 /*sks_valid*/ 1, 4985 /*retry_count*/ 4986 io->io_hdr.port_status); 4987 } 4988 4989 if (ctl_debug & CTL_DEBUG_CDB_DATA) 4990 ctl_data_print(io); 4991 if (((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_IN) || 4992 ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE && 4993 (io->io_hdr.status & CTL_STATUS_MASK) != CTL_SUCCESS) || 4994 ((io->io_hdr.flags & CTL_FLAG_ABORT) != 0)) { 4995 /* 4996 * XXX KDM just assuming a single pointer here, and not a 4997 * S/G list. If we start using S/G lists for config data, 4998 * we'll need to know how to clean them up here as well. 4999 */ 5000 if (io->io_hdr.flags & CTL_FLAG_ALLOCATED) 5001 free(io->scsiio.kern_data_ptr, M_CTL); 5002 ctl_done(io); 5003 retval = CTL_RETVAL_COMPLETE; 5004 } else { 5005 /* 5006 * XXX KDM now we need to continue data movement. Some 5007 * options: 5008 * - call ctl_scsiio() again? We don't do this for data 5009 * writes, because for those at least we know ahead of 5010 * time where the write will go and how long it is. For 5011 * config writes, though, that information is largely 5012 * contained within the write itself, thus we need to 5013 * parse out the data again. 5014 * 5015 * - Call some other function once the data is in? 5016 */ 5017 5018 /* 5019 * XXX KDM call ctl_scsiio() again for now, and check flag 5020 * bits to see whether we're allocated or not. 5021 */ 5022 retval = ctl_scsiio(&io->scsiio); 5023 } 5024 return (retval); 5025} 5026 5027/* 5028 * This gets called by a backend driver when it is done with a 5029 * data_submit method. 5030 */ 5031void 5032ctl_data_submit_done(union ctl_io *io) 5033{ 5034 /* 5035 * If the IO_CONT flag is set, we need to call the supplied 5036 * function to continue processing the I/O, instead of completing 5037 * the I/O just yet. 5038 * 5039 * If there is an error, though, we don't want to keep processing. 5040 * Instead, just send status back to the initiator. 5041 */ 5042 if ((io->io_hdr.flags & CTL_FLAG_IO_CONT) && 5043 (io->io_hdr.flags & CTL_FLAG_ABORT) == 0 && 5044 ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE || 5045 (io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS)) { 5046 io->scsiio.io_cont(io); 5047 return; 5048 } 5049 ctl_done(io); 5050} 5051 5052/* 5053 * This gets called by a backend driver when it is done with a 5054 * configuration write. 5055 */ 5056void 5057ctl_config_write_done(union ctl_io *io) 5058{ 5059 uint8_t *buf; 5060 5061 /* 5062 * If the IO_CONT flag is set, we need to call the supplied 5063 * function to continue processing the I/O, instead of completing 5064 * the I/O just yet. 5065 * 5066 * If there is an error, though, we don't want to keep processing. 5067 * Instead, just send status back to the initiator. 5068 */ 5069 if ((io->io_hdr.flags & CTL_FLAG_IO_CONT) && 5070 (io->io_hdr.flags & CTL_FLAG_ABORT) == 0 && 5071 ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE || 5072 (io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS)) { 5073 io->scsiio.io_cont(io); 5074 return; 5075 } 5076 /* 5077 * Since a configuration write can be done for commands that actually 5078 * have data allocated, like write buffer, and commands that have 5079 * no data, like start/stop unit, we need to check here. 5080 */ 5081 if (io->io_hdr.flags & CTL_FLAG_ALLOCATED) 5082 buf = io->scsiio.kern_data_ptr; 5083 else 5084 buf = NULL; 5085 ctl_done(io); 5086 if (buf) 5087 free(buf, M_CTL); 5088} 5089 5090void 5091ctl_config_read_done(union ctl_io *io) 5092{ 5093 uint8_t *buf; 5094 5095 /* 5096 * If there is some error -- we are done, skip data transfer. 5097 */ 5098 if ((io->io_hdr.flags & CTL_FLAG_ABORT) != 0 || 5099 ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE && 5100 (io->io_hdr.status & CTL_STATUS_MASK) != CTL_SUCCESS)) { 5101 if (io->io_hdr.flags & CTL_FLAG_ALLOCATED) 5102 buf = io->scsiio.kern_data_ptr; 5103 else 5104 buf = NULL; 5105 ctl_done(io); 5106 if (buf) 5107 free(buf, M_CTL); 5108 return; 5109 } 5110 5111 /* 5112 * If the IO_CONT flag is set, we need to call the supplied 5113 * function to continue processing the I/O, instead of completing 5114 * the I/O just yet. 5115 */ 5116 if (io->io_hdr.flags & CTL_FLAG_IO_CONT) { 5117 io->scsiio.io_cont(io); 5118 return; 5119 } 5120 5121 ctl_datamove(io); 5122} 5123 5124/* 5125 * SCSI release command. 5126 */ 5127int 5128ctl_scsi_release(struct ctl_scsiio *ctsio) 5129{ 5130 struct ctl_lun *lun = CTL_LUN(ctsio); 5131 uint32_t residx; 5132 5133 CTL_DEBUG_PRINT(("ctl_scsi_release\n")); 5134 5135 residx = ctl_get_initindex(&ctsio->io_hdr.nexus); 5136 5137 /* 5138 * XXX KDM right now, we only support LUN reservation. We don't 5139 * support 3rd party reservations, or extent reservations, which 5140 * might actually need the parameter list. If we've gotten this 5141 * far, we've got a LUN reservation. Anything else got kicked out 5142 * above. So, according to SPC, ignore the length. 5143 */ 5144 5145 mtx_lock(&lun->lun_lock); 5146 5147 /* 5148 * According to SPC, it is not an error for an intiator to attempt 5149 * to release a reservation on a LUN that isn't reserved, or that 5150 * is reserved by another initiator. The reservation can only be 5151 * released, though, by the initiator who made it or by one of 5152 * several reset type events. 5153 */ 5154 if ((lun->flags & CTL_LUN_RESERVED) && (lun->res_idx == residx)) 5155 lun->flags &= ~CTL_LUN_RESERVED; 5156 5157 mtx_unlock(&lun->lun_lock); 5158 5159 ctl_set_success(ctsio); 5160 ctl_done((union ctl_io *)ctsio); 5161 return (CTL_RETVAL_COMPLETE); 5162} 5163 5164int 5165ctl_scsi_reserve(struct ctl_scsiio *ctsio) 5166{ 5167 struct ctl_lun *lun = CTL_LUN(ctsio); 5168 uint32_t residx; 5169 5170 CTL_DEBUG_PRINT(("ctl_reserve\n")); 5171 5172 residx = ctl_get_initindex(&ctsio->io_hdr.nexus); 5173 5174 /* 5175 * XXX KDM right now, we only support LUN reservation. We don't 5176 * support 3rd party reservations, or extent reservations, which 5177 * might actually need the parameter list. If we've gotten this 5178 * far, we've got a LUN reservation. Anything else got kicked out 5179 * above. So, according to SPC, ignore the length. 5180 */ 5181 5182 mtx_lock(&lun->lun_lock); 5183 if ((lun->flags & CTL_LUN_RESERVED) && (lun->res_idx != residx)) { 5184 ctl_set_reservation_conflict(ctsio); 5185 goto bailout; 5186 } 5187 5188 /* SPC-3 exceptions to SPC-2 RESERVE and RELEASE behavior. */ 5189 if (lun->flags & CTL_LUN_PR_RESERVED) { 5190 ctl_set_success(ctsio); 5191 goto bailout; 5192 } 5193 5194 lun->flags |= CTL_LUN_RESERVED; 5195 lun->res_idx = residx; 5196 ctl_set_success(ctsio); 5197 5198bailout: 5199 mtx_unlock(&lun->lun_lock); 5200 ctl_done((union ctl_io *)ctsio); 5201 return (CTL_RETVAL_COMPLETE); 5202} 5203 5204int 5205ctl_start_stop(struct ctl_scsiio *ctsio) 5206{ 5207 struct ctl_lun *lun = CTL_LUN(ctsio); 5208 struct scsi_start_stop_unit *cdb; 5209 int retval; 5210 5211 CTL_DEBUG_PRINT(("ctl_start_stop\n")); 5212 5213 cdb = (struct scsi_start_stop_unit *)ctsio->cdb; 5214 5215 if ((cdb->how & SSS_PC_MASK) == 0) { 5216 if ((lun->flags & CTL_LUN_PR_RESERVED) && 5217 (cdb->how & SSS_START) == 0) { 5218 uint32_t residx; 5219 5220 residx = ctl_get_initindex(&ctsio->io_hdr.nexus); 5221 if (ctl_get_prkey(lun, residx) == 0 || 5222 (lun->pr_res_idx != residx && lun->pr_res_type < 4)) { 5223 5224 ctl_set_reservation_conflict(ctsio); 5225 ctl_done((union ctl_io *)ctsio); 5226 return (CTL_RETVAL_COMPLETE); 5227 } 5228 } 5229 5230 if ((cdb->how & SSS_LOEJ) && 5231 (lun->flags & CTL_LUN_REMOVABLE) == 0) { 5232 ctl_set_invalid_field(ctsio, 5233 /*sks_valid*/ 1, 5234 /*command*/ 1, 5235 /*field*/ 4, 5236 /*bit_valid*/ 1, 5237 /*bit*/ 1); 5238 ctl_done((union ctl_io *)ctsio); 5239 return (CTL_RETVAL_COMPLETE); 5240 } 5241 5242 if ((cdb->how & SSS_START) == 0 && (cdb->how & SSS_LOEJ) && 5243 lun->prevent_count > 0) { 5244 /* "Medium removal prevented" */ 5245 ctl_set_sense(ctsio, /*current_error*/ 1, 5246 /*sense_key*/(lun->flags & CTL_LUN_NO_MEDIA) ? 5247 SSD_KEY_NOT_READY : SSD_KEY_ILLEGAL_REQUEST, 5248 /*asc*/ 0x53, /*ascq*/ 0x02, SSD_ELEM_NONE); 5249 ctl_done((union ctl_io *)ctsio); 5250 return (CTL_RETVAL_COMPLETE); 5251 } 5252 } 5253 5254 retval = lun->backend->config_write((union ctl_io *)ctsio); 5255 return (retval); 5256} 5257 5258int 5259ctl_prevent_allow(struct ctl_scsiio *ctsio) 5260{ 5261 struct ctl_lun *lun = CTL_LUN(ctsio); 5262 struct scsi_prevent *cdb; 5263 int retval; 5264 uint32_t initidx; 5265 5266 CTL_DEBUG_PRINT(("ctl_prevent_allow\n")); 5267 5268 cdb = (struct scsi_prevent *)ctsio->cdb; 5269 5270 if ((lun->flags & CTL_LUN_REMOVABLE) == 0) { 5271 ctl_set_invalid_opcode(ctsio); 5272 ctl_done((union ctl_io *)ctsio); 5273 return (CTL_RETVAL_COMPLETE); 5274 } 5275 5276 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 5277 mtx_lock(&lun->lun_lock); 5278 if ((cdb->how & PR_PREVENT) && 5279 ctl_is_set(lun->prevent, initidx) == 0) { 5280 ctl_set_mask(lun->prevent, initidx); 5281 lun->prevent_count++; 5282 } else if ((cdb->how & PR_PREVENT) == 0 && 5283 ctl_is_set(lun->prevent, initidx)) { 5284 ctl_clear_mask(lun->prevent, initidx); 5285 lun->prevent_count--; 5286 } 5287 mtx_unlock(&lun->lun_lock); 5288 retval = lun->backend->config_write((union ctl_io *)ctsio); 5289 return (retval); 5290} 5291 5292/* 5293 * We support the SYNCHRONIZE CACHE command (10 and 16 byte versions), but 5294 * we don't really do anything with the LBA and length fields if the user 5295 * passes them in. Instead we'll just flush out the cache for the entire 5296 * LUN. 5297 */ 5298int 5299ctl_sync_cache(struct ctl_scsiio *ctsio) 5300{ 5301 struct ctl_lun *lun = CTL_LUN(ctsio); 5302 struct ctl_lba_len_flags *lbalen; 5303 uint64_t starting_lba; 5304 uint32_t block_count; 5305 int retval; 5306 uint8_t byte2; 5307 5308 CTL_DEBUG_PRINT(("ctl_sync_cache\n")); 5309 5310 retval = 0; 5311 5312 switch (ctsio->cdb[0]) { 5313 case SYNCHRONIZE_CACHE: { 5314 struct scsi_sync_cache *cdb; 5315 cdb = (struct scsi_sync_cache *)ctsio->cdb; 5316 5317 starting_lba = scsi_4btoul(cdb->begin_lba); 5318 block_count = scsi_2btoul(cdb->lb_count); 5319 byte2 = cdb->byte2; 5320 break; 5321 } 5322 case SYNCHRONIZE_CACHE_16: { 5323 struct scsi_sync_cache_16 *cdb; 5324 cdb = (struct scsi_sync_cache_16 *)ctsio->cdb; 5325 5326 starting_lba = scsi_8btou64(cdb->begin_lba); 5327 block_count = scsi_4btoul(cdb->lb_count); 5328 byte2 = cdb->byte2; 5329 break; 5330 } 5331 default: 5332 ctl_set_invalid_opcode(ctsio); 5333 ctl_done((union ctl_io *)ctsio); 5334 goto bailout; 5335 break; /* NOTREACHED */ 5336 } 5337 5338 /* 5339 * We check the LBA and length, but don't do anything with them. 5340 * A SYNCHRONIZE CACHE will cause the entire cache for this lun to 5341 * get flushed. This check will just help satisfy anyone who wants 5342 * to see an error for an out of range LBA. 5343 */ 5344 if ((starting_lba + block_count) > (lun->be_lun->maxlba + 1)) { 5345 ctl_set_lba_out_of_range(ctsio, 5346 MAX(starting_lba, lun->be_lun->maxlba + 1)); 5347 ctl_done((union ctl_io *)ctsio); 5348 goto bailout; 5349 } 5350 5351 lbalen = (struct ctl_lba_len_flags *)&ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 5352 lbalen->lba = starting_lba; 5353 lbalen->len = block_count; 5354 lbalen->flags = byte2; 5355 retval = lun->backend->config_write((union ctl_io *)ctsio); 5356 5357bailout: 5358 return (retval); 5359} 5360 5361int 5362ctl_format(struct ctl_scsiio *ctsio) 5363{ 5364 struct scsi_format *cdb; 5365 int length, defect_list_len; 5366 5367 CTL_DEBUG_PRINT(("ctl_format\n")); 5368 5369 cdb = (struct scsi_format *)ctsio->cdb; 5370 5371 length = 0; 5372 if (cdb->byte2 & SF_FMTDATA) { 5373 if (cdb->byte2 & SF_LONGLIST) 5374 length = sizeof(struct scsi_format_header_long); 5375 else 5376 length = sizeof(struct scsi_format_header_short); 5377 } 5378 5379 if (((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) 5380 && (length > 0)) { 5381 ctsio->kern_data_ptr = malloc(length, M_CTL, M_WAITOK); 5382 ctsio->kern_data_len = length; 5383 ctsio->kern_total_len = length; 5384 ctsio->kern_data_resid = 0; 5385 ctsio->kern_rel_offset = 0; 5386 ctsio->kern_sg_entries = 0; 5387 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5388 ctsio->be_move_done = ctl_config_move_done; 5389 ctl_datamove((union ctl_io *)ctsio); 5390 5391 return (CTL_RETVAL_COMPLETE); 5392 } 5393 5394 defect_list_len = 0; 5395 5396 if (cdb->byte2 & SF_FMTDATA) { 5397 if (cdb->byte2 & SF_LONGLIST) { 5398 struct scsi_format_header_long *header; 5399 5400 header = (struct scsi_format_header_long *) 5401 ctsio->kern_data_ptr; 5402 5403 defect_list_len = scsi_4btoul(header->defect_list_len); 5404 if (defect_list_len != 0) { 5405 ctl_set_invalid_field(ctsio, 5406 /*sks_valid*/ 1, 5407 /*command*/ 0, 5408 /*field*/ 2, 5409 /*bit_valid*/ 0, 5410 /*bit*/ 0); 5411 goto bailout; 5412 } 5413 } else { 5414 struct scsi_format_header_short *header; 5415 5416 header = (struct scsi_format_header_short *) 5417 ctsio->kern_data_ptr; 5418 5419 defect_list_len = scsi_2btoul(header->defect_list_len); 5420 if (defect_list_len != 0) { 5421 ctl_set_invalid_field(ctsio, 5422 /*sks_valid*/ 1, 5423 /*command*/ 0, 5424 /*field*/ 2, 5425 /*bit_valid*/ 0, 5426 /*bit*/ 0); 5427 goto bailout; 5428 } 5429 } 5430 } 5431 5432 ctl_set_success(ctsio); 5433bailout: 5434 5435 if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) { 5436 free(ctsio->kern_data_ptr, M_CTL); 5437 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED; 5438 } 5439 5440 ctl_done((union ctl_io *)ctsio); 5441 return (CTL_RETVAL_COMPLETE); 5442} 5443 5444int 5445ctl_read_buffer(struct ctl_scsiio *ctsio) 5446{ 5447 struct ctl_lun *lun = CTL_LUN(ctsio); 5448 uint64_t buffer_offset; 5449 uint32_t len; 5450 uint8_t byte2; 5451 static uint8_t descr[4]; 5452 static uint8_t echo_descr[4] = { 0 }; 5453 5454 CTL_DEBUG_PRINT(("ctl_read_buffer\n")); 5455 5456 switch (ctsio->cdb[0]) { 5457 case READ_BUFFER: { 5458 struct scsi_read_buffer *cdb; 5459 5460 cdb = (struct scsi_read_buffer *)ctsio->cdb; 5461 buffer_offset = scsi_3btoul(cdb->offset); 5462 len = scsi_3btoul(cdb->length); 5463 byte2 = cdb->byte2; 5464 break; 5465 } 5466 case READ_BUFFER_16: { 5467 struct scsi_read_buffer_16 *cdb; 5468 5469 cdb = (struct scsi_read_buffer_16 *)ctsio->cdb; 5470 buffer_offset = scsi_8btou64(cdb->offset); 5471 len = scsi_4btoul(cdb->length); 5472 byte2 = cdb->byte2; 5473 break; 5474 } 5475 default: /* This shouldn't happen. */ 5476 ctl_set_invalid_opcode(ctsio); 5477 ctl_done((union ctl_io *)ctsio); 5478 return (CTL_RETVAL_COMPLETE); 5479 } 5480 5481 if (buffer_offset > CTL_WRITE_BUFFER_SIZE || 5482 buffer_offset + len > CTL_WRITE_BUFFER_SIZE) { 5483 ctl_set_invalid_field(ctsio, 5484 /*sks_valid*/ 1, 5485 /*command*/ 1, 5486 /*field*/ 6, 5487 /*bit_valid*/ 0, 5488 /*bit*/ 0); 5489 ctl_done((union ctl_io *)ctsio); 5490 return (CTL_RETVAL_COMPLETE); 5491 } 5492 5493 if ((byte2 & RWB_MODE) == RWB_MODE_DESCR) { 5494 descr[0] = 0; 5495 scsi_ulto3b(CTL_WRITE_BUFFER_SIZE, &descr[1]); 5496 ctsio->kern_data_ptr = descr; 5497 len = min(len, sizeof(descr)); 5498 } else if ((byte2 & RWB_MODE) == RWB_MODE_ECHO_DESCR) { 5499 ctsio->kern_data_ptr = echo_descr; 5500 len = min(len, sizeof(echo_descr)); 5501 } else { 5502 if (lun->write_buffer == NULL) { 5503 lun->write_buffer = malloc(CTL_WRITE_BUFFER_SIZE, 5504 M_CTL, M_WAITOK); 5505 } 5506 ctsio->kern_data_ptr = lun->write_buffer + buffer_offset; 5507 } 5508 ctsio->kern_data_len = len; 5509 ctsio->kern_total_len = len; 5510 ctsio->kern_data_resid = 0; 5511 ctsio->kern_rel_offset = 0; 5512 ctsio->kern_sg_entries = 0; 5513 ctl_set_success(ctsio); 5514 ctsio->be_move_done = ctl_config_move_done; 5515 ctl_datamove((union ctl_io *)ctsio); 5516 return (CTL_RETVAL_COMPLETE); 5517} 5518 5519int 5520ctl_write_buffer(struct ctl_scsiio *ctsio) 5521{ 5522 struct ctl_lun *lun = CTL_LUN(ctsio); 5523 struct scsi_write_buffer *cdb; 5524 int buffer_offset, len; 5525 5526 CTL_DEBUG_PRINT(("ctl_write_buffer\n")); 5527 5528 cdb = (struct scsi_write_buffer *)ctsio->cdb; 5529 5530 len = scsi_3btoul(cdb->length); 5531 buffer_offset = scsi_3btoul(cdb->offset); 5532 5533 if (buffer_offset + len > CTL_WRITE_BUFFER_SIZE) { 5534 ctl_set_invalid_field(ctsio, 5535 /*sks_valid*/ 1, 5536 /*command*/ 1, 5537 /*field*/ 6, 5538 /*bit_valid*/ 0, 5539 /*bit*/ 0); 5540 ctl_done((union ctl_io *)ctsio); 5541 return (CTL_RETVAL_COMPLETE); 5542 } 5543 5544 /* 5545 * If we've got a kernel request that hasn't been malloced yet, 5546 * malloc it and tell the caller the data buffer is here. 5547 */ 5548 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 5549 if (lun->write_buffer == NULL) { 5550 lun->write_buffer = malloc(CTL_WRITE_BUFFER_SIZE, 5551 M_CTL, M_WAITOK); 5552 } 5553 ctsio->kern_data_ptr = lun->write_buffer + buffer_offset; 5554 ctsio->kern_data_len = len; 5555 ctsio->kern_total_len = len; 5556 ctsio->kern_data_resid = 0; 5557 ctsio->kern_rel_offset = 0; 5558 ctsio->kern_sg_entries = 0; 5559 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5560 ctsio->be_move_done = ctl_config_move_done; 5561 ctl_datamove((union ctl_io *)ctsio); 5562 5563 return (CTL_RETVAL_COMPLETE); 5564 } 5565 5566 ctl_set_success(ctsio); 5567 ctl_done((union ctl_io *)ctsio); 5568 return (CTL_RETVAL_COMPLETE); 5569} 5570 5571int 5572ctl_write_same(struct ctl_scsiio *ctsio) 5573{ 5574 struct ctl_lun *lun = CTL_LUN(ctsio); 5575 struct ctl_lba_len_flags *lbalen; 5576 uint64_t lba; 5577 uint32_t num_blocks; 5578 int len, retval; 5579 uint8_t byte2; 5580 5581 CTL_DEBUG_PRINT(("ctl_write_same\n")); 5582 5583 switch (ctsio->cdb[0]) { 5584 case WRITE_SAME_10: { 5585 struct scsi_write_same_10 *cdb; 5586 5587 cdb = (struct scsi_write_same_10 *)ctsio->cdb; 5588 5589 lba = scsi_4btoul(cdb->addr); 5590 num_blocks = scsi_2btoul(cdb->length); 5591 byte2 = cdb->byte2; 5592 break; 5593 } 5594 case WRITE_SAME_16: { 5595 struct scsi_write_same_16 *cdb; 5596 5597 cdb = (struct scsi_write_same_16 *)ctsio->cdb; 5598 5599 lba = scsi_8btou64(cdb->addr); 5600 num_blocks = scsi_4btoul(cdb->length); 5601 byte2 = cdb->byte2; 5602 break; 5603 } 5604 default: 5605 /* 5606 * We got a command we don't support. This shouldn't 5607 * happen, commands should be filtered out above us. 5608 */ 5609 ctl_set_invalid_opcode(ctsio); 5610 ctl_done((union ctl_io *)ctsio); 5611 5612 return (CTL_RETVAL_COMPLETE); 5613 break; /* NOTREACHED */ 5614 } 5615 5616 /* ANCHOR flag can be used only together with UNMAP */ 5617 if ((byte2 & SWS_UNMAP) == 0 && (byte2 & SWS_ANCHOR) != 0) { 5618 ctl_set_invalid_field(ctsio, /*sks_valid*/ 1, 5619 /*command*/ 1, /*field*/ 1, /*bit_valid*/ 1, /*bit*/ 0); 5620 ctl_done((union ctl_io *)ctsio); 5621 return (CTL_RETVAL_COMPLETE); 5622 } 5623 5624 /* 5625 * The first check is to make sure we're in bounds, the second 5626 * check is to catch wrap-around problems. If the lba + num blocks 5627 * is less than the lba, then we've wrapped around and the block 5628 * range is invalid anyway. 5629 */ 5630 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 5631 || ((lba + num_blocks) < lba)) { 5632 ctl_set_lba_out_of_range(ctsio, 5633 MAX(lba, lun->be_lun->maxlba + 1)); 5634 ctl_done((union ctl_io *)ctsio); 5635 return (CTL_RETVAL_COMPLETE); 5636 } 5637 5638 /* Zero number of blocks means "to the last logical block" */ 5639 if (num_blocks == 0) { 5640 if ((lun->be_lun->maxlba + 1) - lba > UINT32_MAX) { 5641 ctl_set_invalid_field(ctsio, 5642 /*sks_valid*/ 0, 5643 /*command*/ 1, 5644 /*field*/ 0, 5645 /*bit_valid*/ 0, 5646 /*bit*/ 0); 5647 ctl_done((union ctl_io *)ctsio); 5648 return (CTL_RETVAL_COMPLETE); 5649 } 5650 num_blocks = (lun->be_lun->maxlba + 1) - lba; 5651 } 5652 5653 len = lun->be_lun->blocksize; 5654 5655 /* 5656 * If we've got a kernel request that hasn't been malloced yet, 5657 * malloc it and tell the caller the data buffer is here. 5658 */ 5659 if ((byte2 & SWS_NDOB) == 0 && 5660 (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 5661 ctsio->kern_data_ptr = malloc(len, M_CTL, M_WAITOK); 5662 ctsio->kern_data_len = len; 5663 ctsio->kern_total_len = len; 5664 ctsio->kern_data_resid = 0; 5665 ctsio->kern_rel_offset = 0; 5666 ctsio->kern_sg_entries = 0; 5667 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5668 ctsio->be_move_done = ctl_config_move_done; 5669 ctl_datamove((union ctl_io *)ctsio); 5670 5671 return (CTL_RETVAL_COMPLETE); 5672 } 5673 5674 lbalen = (struct ctl_lba_len_flags *)&ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 5675 lbalen->lba = lba; 5676 lbalen->len = num_blocks; 5677 lbalen->flags = byte2; 5678 retval = lun->backend->config_write((union ctl_io *)ctsio); 5679 5680 return (retval); 5681} 5682 5683int 5684ctl_unmap(struct ctl_scsiio *ctsio) 5685{ 5686 struct ctl_lun *lun = CTL_LUN(ctsio); 5687 struct scsi_unmap *cdb; 5688 struct ctl_ptr_len_flags *ptrlen; 5689 struct scsi_unmap_header *hdr; 5690 struct scsi_unmap_desc *buf, *end, *endnz, *range; 5691 uint64_t lba; 5692 uint32_t num_blocks; 5693 int len, retval; 5694 uint8_t byte2; 5695 5696 CTL_DEBUG_PRINT(("ctl_unmap\n")); 5697 5698 cdb = (struct scsi_unmap *)ctsio->cdb; 5699 len = scsi_2btoul(cdb->length); 5700 byte2 = cdb->byte2; 5701 5702 /* 5703 * If we've got a kernel request that hasn't been malloced yet, 5704 * malloc it and tell the caller the data buffer is here. 5705 */ 5706 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 5707 ctsio->kern_data_ptr = malloc(len, M_CTL, M_WAITOK); 5708 ctsio->kern_data_len = len; 5709 ctsio->kern_total_len = len; 5710 ctsio->kern_data_resid = 0; 5711 ctsio->kern_rel_offset = 0; 5712 ctsio->kern_sg_entries = 0; 5713 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5714 ctsio->be_move_done = ctl_config_move_done; 5715 ctl_datamove((union ctl_io *)ctsio); 5716 5717 return (CTL_RETVAL_COMPLETE); 5718 } 5719 5720 len = ctsio->kern_total_len - ctsio->kern_data_resid; 5721 hdr = (struct scsi_unmap_header *)ctsio->kern_data_ptr; 5722 if (len < sizeof (*hdr) || 5723 len < (scsi_2btoul(hdr->length) + sizeof(hdr->length)) || 5724 len < (scsi_2btoul(hdr->desc_length) + sizeof (*hdr)) || 5725 scsi_2btoul(hdr->desc_length) % sizeof(*buf) != 0) { 5726 ctl_set_invalid_field(ctsio, 5727 /*sks_valid*/ 0, 5728 /*command*/ 0, 5729 /*field*/ 0, 5730 /*bit_valid*/ 0, 5731 /*bit*/ 0); 5732 goto done; 5733 } 5734 len = scsi_2btoul(hdr->desc_length); 5735 buf = (struct scsi_unmap_desc *)(hdr + 1); 5736 end = buf + len / sizeof(*buf); 5737 5738 endnz = buf; 5739 for (range = buf; range < end; range++) { 5740 lba = scsi_8btou64(range->lba); 5741 num_blocks = scsi_4btoul(range->length); 5742 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 5743 || ((lba + num_blocks) < lba)) { 5744 ctl_set_lba_out_of_range(ctsio, 5745 MAX(lba, lun->be_lun->maxlba + 1)); 5746 ctl_done((union ctl_io *)ctsio); 5747 return (CTL_RETVAL_COMPLETE); 5748 } 5749 if (num_blocks != 0) 5750 endnz = range + 1; 5751 } 5752 5753 /* 5754 * Block backend can not handle zero last range. 5755 * Filter it out and return if there is nothing left. 5756 */ 5757 len = (uint8_t *)endnz - (uint8_t *)buf; 5758 if (len == 0) { 5759 ctl_set_success(ctsio); 5760 goto done; 5761 } 5762 5763 mtx_lock(&lun->lun_lock); 5764 ptrlen = (struct ctl_ptr_len_flags *) 5765 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 5766 ptrlen->ptr = (void *)buf; 5767 ptrlen->len = len; 5768 ptrlen->flags = byte2; 5769 ctl_check_blocked(lun); 5770 mtx_unlock(&lun->lun_lock); 5771 5772 retval = lun->backend->config_write((union ctl_io *)ctsio); 5773 return (retval); 5774 5775done: 5776 if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) { 5777 free(ctsio->kern_data_ptr, M_CTL); 5778 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED; 5779 } 5780 ctl_done((union ctl_io *)ctsio); 5781 return (CTL_RETVAL_COMPLETE); 5782} 5783 5784int 5785ctl_default_page_handler(struct ctl_scsiio *ctsio, 5786 struct ctl_page_index *page_index, uint8_t *page_ptr) 5787{ 5788 struct ctl_lun *lun = CTL_LUN(ctsio); 5789 uint8_t *current_cp; 5790 int set_ua; 5791 uint32_t initidx; 5792 5793 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 5794 set_ua = 0; 5795 5796 current_cp = (page_index->page_data + (page_index->page_len * 5797 CTL_PAGE_CURRENT)); 5798 5799 mtx_lock(&lun->lun_lock); 5800 if (memcmp(current_cp, page_ptr, page_index->page_len)) { 5801 memcpy(current_cp, page_ptr, page_index->page_len); 5802 set_ua = 1; 5803 } 5804 if (set_ua != 0) 5805 ctl_est_ua_all(lun, initidx, CTL_UA_MODE_CHANGE); 5806 mtx_unlock(&lun->lun_lock); 5807 if (set_ua) { 5808 ctl_isc_announce_mode(lun, 5809 ctl_get_initindex(&ctsio->io_hdr.nexus), 5810 page_index->page_code, page_index->subpage); 5811 } 5812 return (CTL_RETVAL_COMPLETE); 5813} 5814 5815static void 5816ctl_ie_timer(void *arg) 5817{ 5818 struct ctl_lun *lun = arg; 5819 uint64_t t; 5820 5821 if (lun->ie_asc == 0) 5822 return; 5823 5824 if (lun->MODE_IE.mrie == SIEP_MRIE_UA) 5825 ctl_est_ua_all(lun, -1, CTL_UA_IE); 5826 else 5827 lun->ie_reported = 0; 5828 5829 if (lun->ie_reportcnt < scsi_4btoul(lun->MODE_IE.report_count)) { 5830 lun->ie_reportcnt++; 5831 t = scsi_4btoul(lun->MODE_IE.interval_timer); 5832 if (t == 0 || t == UINT32_MAX) 5833 t = 3000; /* 5 min */ 5834 callout_schedule(&lun->ie_callout, t * hz / 10); 5835 } 5836} 5837 5838int 5839ctl_ie_page_handler(struct ctl_scsiio *ctsio, 5840 struct ctl_page_index *page_index, uint8_t *page_ptr) 5841{ 5842 struct ctl_lun *lun = CTL_LUN(ctsio); 5843 struct scsi_info_exceptions_page *pg; 5844 uint64_t t; 5845 5846 (void)ctl_default_page_handler(ctsio, page_index, page_ptr); 5847 5848 pg = (struct scsi_info_exceptions_page *)page_ptr; 5849 mtx_lock(&lun->lun_lock); 5850 if (pg->info_flags & SIEP_FLAGS_TEST) { 5851 lun->ie_asc = 0x5d; 5852 lun->ie_ascq = 0xff; 5853 if (pg->mrie == SIEP_MRIE_UA) { 5854 ctl_est_ua_all(lun, -1, CTL_UA_IE); 5855 lun->ie_reported = 1; 5856 } else { 5857 ctl_clr_ua_all(lun, -1, CTL_UA_IE); 5858 lun->ie_reported = -1; 5859 } 5860 lun->ie_reportcnt = 1; 5861 if (lun->ie_reportcnt < scsi_4btoul(pg->report_count)) { 5862 lun->ie_reportcnt++; 5863 t = scsi_4btoul(pg->interval_timer); 5864 if (t == 0 || t == UINT32_MAX) 5865 t = 3000; /* 5 min */ 5866 callout_reset(&lun->ie_callout, t * hz / 10, 5867 ctl_ie_timer, lun); 5868 } 5869 } else { 5870 lun->ie_asc = 0; 5871 lun->ie_ascq = 0; 5872 lun->ie_reported = 1; 5873 ctl_clr_ua_all(lun, -1, CTL_UA_IE); 5874 lun->ie_reportcnt = UINT32_MAX; 5875 callout_stop(&lun->ie_callout); 5876 } 5877 mtx_unlock(&lun->lun_lock); 5878 return (CTL_RETVAL_COMPLETE); 5879} 5880 5881static int 5882ctl_do_mode_select(union ctl_io *io) 5883{ 5884 struct ctl_lun *lun = CTL_LUN(io); 5885 struct scsi_mode_page_header *page_header; 5886 struct ctl_page_index *page_index; 5887 struct ctl_scsiio *ctsio; 5888 int page_len, page_len_offset, page_len_size; 5889 union ctl_modepage_info *modepage_info; 5890 uint16_t *len_left, *len_used; 5891 int retval, i; 5892 5893 ctsio = &io->scsiio; 5894 page_index = NULL; 5895 page_len = 0; 5896 5897 modepage_info = (union ctl_modepage_info *) 5898 ctsio->io_hdr.ctl_private[CTL_PRIV_MODEPAGE].bytes; 5899 len_left = &modepage_info->header.len_left; 5900 len_used = &modepage_info->header.len_used; 5901 5902do_next_page: 5903 5904 page_header = (struct scsi_mode_page_header *) 5905 (ctsio->kern_data_ptr + *len_used); 5906 5907 if (*len_left == 0) { 5908 free(ctsio->kern_data_ptr, M_CTL); 5909 ctl_set_success(ctsio); 5910 ctl_done((union ctl_io *)ctsio); 5911 return (CTL_RETVAL_COMPLETE); 5912 } else if (*len_left < sizeof(struct scsi_mode_page_header)) { 5913 5914 free(ctsio->kern_data_ptr, M_CTL); 5915 ctl_set_param_len_error(ctsio); 5916 ctl_done((union ctl_io *)ctsio); 5917 return (CTL_RETVAL_COMPLETE); 5918 5919 } else if ((page_header->page_code & SMPH_SPF) 5920 && (*len_left < sizeof(struct scsi_mode_page_header_sp))) { 5921 5922 free(ctsio->kern_data_ptr, M_CTL); 5923 ctl_set_param_len_error(ctsio); 5924 ctl_done((union ctl_io *)ctsio); 5925 return (CTL_RETVAL_COMPLETE); 5926 } 5927 5928 5929 /* 5930 * XXX KDM should we do something with the block descriptor? 5931 */ 5932 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 5933 page_index = &lun->mode_pages.index[i]; 5934 if (lun->be_lun->lun_type == T_DIRECT && 5935 (page_index->page_flags & CTL_PAGE_FLAG_DIRECT) == 0) 5936 continue; 5937 if (lun->be_lun->lun_type == T_PROCESSOR && 5938 (page_index->page_flags & CTL_PAGE_FLAG_PROC) == 0) 5939 continue; 5940 if (lun->be_lun->lun_type == T_CDROM && 5941 (page_index->page_flags & CTL_PAGE_FLAG_CDROM) == 0) 5942 continue; 5943 5944 if ((page_index->page_code & SMPH_PC_MASK) != 5945 (page_header->page_code & SMPH_PC_MASK)) 5946 continue; 5947 5948 /* 5949 * If neither page has a subpage code, then we've got a 5950 * match. 5951 */ 5952 if (((page_index->page_code & SMPH_SPF) == 0) 5953 && ((page_header->page_code & SMPH_SPF) == 0)) { 5954 page_len = page_header->page_length; 5955 break; 5956 } 5957 5958 /* 5959 * If both pages have subpages, then the subpage numbers 5960 * have to match. 5961 */ 5962 if ((page_index->page_code & SMPH_SPF) 5963 && (page_header->page_code & SMPH_SPF)) { 5964 struct scsi_mode_page_header_sp *sph; 5965 5966 sph = (struct scsi_mode_page_header_sp *)page_header; 5967 if (page_index->subpage == sph->subpage) { 5968 page_len = scsi_2btoul(sph->page_length); 5969 break; 5970 } 5971 } 5972 } 5973 5974 /* 5975 * If we couldn't find the page, or if we don't have a mode select 5976 * handler for it, send back an error to the user. 5977 */ 5978 if ((i >= CTL_NUM_MODE_PAGES) 5979 || (page_index->select_handler == NULL)) { 5980 ctl_set_invalid_field(ctsio, 5981 /*sks_valid*/ 1, 5982 /*command*/ 0, 5983 /*field*/ *len_used, 5984 /*bit_valid*/ 0, 5985 /*bit*/ 0); 5986 free(ctsio->kern_data_ptr, M_CTL); 5987 ctl_done((union ctl_io *)ctsio); 5988 return (CTL_RETVAL_COMPLETE); 5989 } 5990 5991 if (page_index->page_code & SMPH_SPF) { 5992 page_len_offset = 2; 5993 page_len_size = 2; 5994 } else { 5995 page_len_size = 1; 5996 page_len_offset = 1; 5997 } 5998 5999 /* 6000 * If the length the initiator gives us isn't the one we specify in 6001 * the mode page header, or if they didn't specify enough data in 6002 * the CDB to avoid truncating this page, kick out the request. 6003 */ 6004 if (page_len != page_index->page_len - page_len_offset - page_len_size) { 6005 ctl_set_invalid_field(ctsio, 6006 /*sks_valid*/ 1, 6007 /*command*/ 0, 6008 /*field*/ *len_used + page_len_offset, 6009 /*bit_valid*/ 0, 6010 /*bit*/ 0); 6011 free(ctsio->kern_data_ptr, M_CTL); 6012 ctl_done((union ctl_io *)ctsio); 6013 return (CTL_RETVAL_COMPLETE); 6014 } 6015 if (*len_left < page_index->page_len) { 6016 free(ctsio->kern_data_ptr, M_CTL); 6017 ctl_set_param_len_error(ctsio); 6018 ctl_done((union ctl_io *)ctsio); 6019 return (CTL_RETVAL_COMPLETE); 6020 } 6021 6022 /* 6023 * Run through the mode page, checking to make sure that the bits 6024 * the user changed are actually legal for him to change. 6025 */ 6026 for (i = 0; i < page_index->page_len; i++) { 6027 uint8_t *user_byte, *change_mask, *current_byte; 6028 int bad_bit; 6029 int j; 6030 6031 user_byte = (uint8_t *)page_header + i; 6032 change_mask = page_index->page_data + 6033 (page_index->page_len * CTL_PAGE_CHANGEABLE) + i; 6034 current_byte = page_index->page_data + 6035 (page_index->page_len * CTL_PAGE_CURRENT) + i; 6036 6037 /* 6038 * Check to see whether the user set any bits in this byte 6039 * that he is not allowed to set. 6040 */ 6041 if ((*user_byte & ~(*change_mask)) == 6042 (*current_byte & ~(*change_mask))) 6043 continue; 6044 6045 /* 6046 * Go through bit by bit to determine which one is illegal. 6047 */ 6048 bad_bit = 0; 6049 for (j = 7; j >= 0; j--) { 6050 if ((((1 << i) & ~(*change_mask)) & *user_byte) != 6051 (((1 << i) & ~(*change_mask)) & *current_byte)) { 6052 bad_bit = i; 6053 break; 6054 } 6055 } 6056 ctl_set_invalid_field(ctsio, 6057 /*sks_valid*/ 1, 6058 /*command*/ 0, 6059 /*field*/ *len_used + i, 6060 /*bit_valid*/ 1, 6061 /*bit*/ bad_bit); 6062 free(ctsio->kern_data_ptr, M_CTL); 6063 ctl_done((union ctl_io *)ctsio); 6064 return (CTL_RETVAL_COMPLETE); 6065 } 6066 6067 /* 6068 * Decrement these before we call the page handler, since we may 6069 * end up getting called back one way or another before the handler 6070 * returns to this context. 6071 */ 6072 *len_left -= page_index->page_len; 6073 *len_used += page_index->page_len; 6074 6075 retval = page_index->select_handler(ctsio, page_index, 6076 (uint8_t *)page_header); 6077 6078 /* 6079 * If the page handler returns CTL_RETVAL_QUEUED, then we need to 6080 * wait until this queued command completes to finish processing 6081 * the mode page. If it returns anything other than 6082 * CTL_RETVAL_COMPLETE (e.g. CTL_RETVAL_ERROR), then it should have 6083 * already set the sense information, freed the data pointer, and 6084 * completed the io for us. 6085 */ 6086 if (retval != CTL_RETVAL_COMPLETE) 6087 goto bailout_no_done; 6088 6089 /* 6090 * If the initiator sent us more than one page, parse the next one. 6091 */ 6092 if (*len_left > 0) 6093 goto do_next_page; 6094 6095 ctl_set_success(ctsio); 6096 free(ctsio->kern_data_ptr, M_CTL); 6097 ctl_done((union ctl_io *)ctsio); 6098 6099bailout_no_done: 6100 6101 return (CTL_RETVAL_COMPLETE); 6102 6103} 6104 6105int 6106ctl_mode_select(struct ctl_scsiio *ctsio) 6107{ 6108 struct ctl_lun *lun = CTL_LUN(ctsio); 6109 union ctl_modepage_info *modepage_info; 6110 int bd_len, i, header_size, param_len, pf, rtd, sp; 6111 uint32_t initidx; 6112 6113 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 6114 switch (ctsio->cdb[0]) { 6115 case MODE_SELECT_6: { 6116 struct scsi_mode_select_6 *cdb; 6117 6118 cdb = (struct scsi_mode_select_6 *)ctsio->cdb; 6119 6120 pf = (cdb->byte2 & SMS_PF) ? 1 : 0; 6121 rtd = (cdb->byte2 & SMS_RTD) ? 1 : 0; 6122 sp = (cdb->byte2 & SMS_SP) ? 1 : 0; 6123 param_len = cdb->length; 6124 header_size = sizeof(struct scsi_mode_header_6); 6125 break; 6126 } 6127 case MODE_SELECT_10: { 6128 struct scsi_mode_select_10 *cdb; 6129 6130 cdb = (struct scsi_mode_select_10 *)ctsio->cdb; 6131 6132 pf = (cdb->byte2 & SMS_PF) ? 1 : 0; 6133 rtd = (cdb->byte2 & SMS_RTD) ? 1 : 0; 6134 sp = (cdb->byte2 & SMS_SP) ? 1 : 0; 6135 param_len = scsi_2btoul(cdb->length); 6136 header_size = sizeof(struct scsi_mode_header_10); 6137 break; 6138 } 6139 default: 6140 ctl_set_invalid_opcode(ctsio); 6141 ctl_done((union ctl_io *)ctsio); 6142 return (CTL_RETVAL_COMPLETE); 6143 } 6144 6145 if (rtd) { 6146 if (param_len != 0) { 6147 ctl_set_invalid_field(ctsio, /*sks_valid*/ 0, 6148 /*command*/ 1, /*field*/ 0, 6149 /*bit_valid*/ 0, /*bit*/ 0); 6150 ctl_done((union ctl_io *)ctsio); 6151 return (CTL_RETVAL_COMPLETE); 6152 } 6153 6154 /* Revert to defaults. */ 6155 ctl_init_page_index(lun); 6156 mtx_lock(&lun->lun_lock); 6157 ctl_est_ua_all(lun, initidx, CTL_UA_MODE_CHANGE); 6158 mtx_unlock(&lun->lun_lock); 6159 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6160 ctl_isc_announce_mode(lun, -1, 6161 lun->mode_pages.index[i].page_code & SMPH_PC_MASK, 6162 lun->mode_pages.index[i].subpage); 6163 } 6164 ctl_set_success(ctsio); 6165 ctl_done((union ctl_io *)ctsio); 6166 return (CTL_RETVAL_COMPLETE); 6167 } 6168 6169 /* 6170 * From SPC-3: 6171 * "A parameter list length of zero indicates that the Data-Out Buffer 6172 * shall be empty. This condition shall not be considered as an error." 6173 */ 6174 if (param_len == 0) { 6175 ctl_set_success(ctsio); 6176 ctl_done((union ctl_io *)ctsio); 6177 return (CTL_RETVAL_COMPLETE); 6178 } 6179 6180 /* 6181 * Since we'll hit this the first time through, prior to 6182 * allocation, we don't need to free a data buffer here. 6183 */ 6184 if (param_len < header_size) { 6185 ctl_set_param_len_error(ctsio); 6186 ctl_done((union ctl_io *)ctsio); 6187 return (CTL_RETVAL_COMPLETE); 6188 } 6189 6190 /* 6191 * Allocate the data buffer and grab the user's data. In theory, 6192 * we shouldn't have to sanity check the parameter list length here 6193 * because the maximum size is 64K. We should be able to malloc 6194 * that much without too many problems. 6195 */ 6196 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 6197 ctsio->kern_data_ptr = malloc(param_len, M_CTL, M_WAITOK); 6198 ctsio->kern_data_len = param_len; 6199 ctsio->kern_total_len = param_len; 6200 ctsio->kern_data_resid = 0; 6201 ctsio->kern_rel_offset = 0; 6202 ctsio->kern_sg_entries = 0; 6203 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6204 ctsio->be_move_done = ctl_config_move_done; 6205 ctl_datamove((union ctl_io *)ctsio); 6206 6207 return (CTL_RETVAL_COMPLETE); 6208 } 6209 6210 switch (ctsio->cdb[0]) { 6211 case MODE_SELECT_6: { 6212 struct scsi_mode_header_6 *mh6; 6213 6214 mh6 = (struct scsi_mode_header_6 *)ctsio->kern_data_ptr; 6215 bd_len = mh6->blk_desc_len; 6216 break; 6217 } 6218 case MODE_SELECT_10: { 6219 struct scsi_mode_header_10 *mh10; 6220 6221 mh10 = (struct scsi_mode_header_10 *)ctsio->kern_data_ptr; 6222 bd_len = scsi_2btoul(mh10->blk_desc_len); 6223 break; 6224 } 6225 default: 6226 panic("%s: Invalid CDB type %#x", __func__, ctsio->cdb[0]); 6227 } 6228 6229 if (param_len < (header_size + bd_len)) { 6230 free(ctsio->kern_data_ptr, M_CTL); 6231 ctl_set_param_len_error(ctsio); 6232 ctl_done((union ctl_io *)ctsio); 6233 return (CTL_RETVAL_COMPLETE); 6234 } 6235 6236 /* 6237 * Set the IO_CONT flag, so that if this I/O gets passed to 6238 * ctl_config_write_done(), it'll get passed back to 6239 * ctl_do_mode_select() for further processing, or completion if 6240 * we're all done. 6241 */ 6242 ctsio->io_hdr.flags |= CTL_FLAG_IO_CONT; 6243 ctsio->io_cont = ctl_do_mode_select; 6244 6245 modepage_info = (union ctl_modepage_info *) 6246 ctsio->io_hdr.ctl_private[CTL_PRIV_MODEPAGE].bytes; 6247 memset(modepage_info, 0, sizeof(*modepage_info)); 6248 modepage_info->header.len_left = param_len - header_size - bd_len; 6249 modepage_info->header.len_used = header_size + bd_len; 6250 6251 return (ctl_do_mode_select((union ctl_io *)ctsio)); 6252} 6253 6254int 6255ctl_mode_sense(struct ctl_scsiio *ctsio) 6256{ 6257 struct ctl_lun *lun = CTL_LUN(ctsio); 6258 int pc, page_code, dbd, llba, subpage; 6259 int alloc_len, page_len, header_len, total_len; 6260 struct scsi_mode_block_descr *block_desc; 6261 struct ctl_page_index *page_index; 6262 6263 dbd = 0; 6264 llba = 0; 6265 block_desc = NULL; 6266 6267 CTL_DEBUG_PRINT(("ctl_mode_sense\n")); 6268 6269 switch (ctsio->cdb[0]) { 6270 case MODE_SENSE_6: { 6271 struct scsi_mode_sense_6 *cdb; 6272 6273 cdb = (struct scsi_mode_sense_6 *)ctsio->cdb; 6274 6275 header_len = sizeof(struct scsi_mode_hdr_6); 6276 if (cdb->byte2 & SMS_DBD) 6277 dbd = 1; 6278 else 6279 header_len += sizeof(struct scsi_mode_block_descr); 6280 6281 pc = (cdb->page & SMS_PAGE_CTRL_MASK) >> 6; 6282 page_code = cdb->page & SMS_PAGE_CODE; 6283 subpage = cdb->subpage; 6284 alloc_len = cdb->length; 6285 break; 6286 } 6287 case MODE_SENSE_10: { 6288 struct scsi_mode_sense_10 *cdb; 6289 6290 cdb = (struct scsi_mode_sense_10 *)ctsio->cdb; 6291 6292 header_len = sizeof(struct scsi_mode_hdr_10); 6293 6294 if (cdb->byte2 & SMS_DBD) 6295 dbd = 1; 6296 else 6297 header_len += sizeof(struct scsi_mode_block_descr); 6298 if (cdb->byte2 & SMS10_LLBAA) 6299 llba = 1; 6300 pc = (cdb->page & SMS_PAGE_CTRL_MASK) >> 6; 6301 page_code = cdb->page & SMS_PAGE_CODE; 6302 subpage = cdb->subpage; 6303 alloc_len = scsi_2btoul(cdb->length); 6304 break; 6305 } 6306 default: 6307 ctl_set_invalid_opcode(ctsio); 6308 ctl_done((union ctl_io *)ctsio); 6309 return (CTL_RETVAL_COMPLETE); 6310 break; /* NOTREACHED */ 6311 } 6312 6313 /* 6314 * We have to make a first pass through to calculate the size of 6315 * the pages that match the user's query. Then we allocate enough 6316 * memory to hold it, and actually copy the data into the buffer. 6317 */ 6318 switch (page_code) { 6319 case SMS_ALL_PAGES_PAGE: { 6320 u_int i; 6321 6322 page_len = 0; 6323 6324 /* 6325 * At the moment, values other than 0 and 0xff here are 6326 * reserved according to SPC-3. 6327 */ 6328 if ((subpage != SMS_SUBPAGE_PAGE_0) 6329 && (subpage != SMS_SUBPAGE_ALL)) { 6330 ctl_set_invalid_field(ctsio, 6331 /*sks_valid*/ 1, 6332 /*command*/ 1, 6333 /*field*/ 3, 6334 /*bit_valid*/ 0, 6335 /*bit*/ 0); 6336 ctl_done((union ctl_io *)ctsio); 6337 return (CTL_RETVAL_COMPLETE); 6338 } 6339 6340 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6341 page_index = &lun->mode_pages.index[i]; 6342 6343 /* Make sure the page is supported for this dev type */ 6344 if (lun->be_lun->lun_type == T_DIRECT && 6345 (page_index->page_flags & CTL_PAGE_FLAG_DIRECT) == 0) 6346 continue; 6347 if (lun->be_lun->lun_type == T_PROCESSOR && 6348 (page_index->page_flags & CTL_PAGE_FLAG_PROC) == 0) 6349 continue; 6350 if (lun->be_lun->lun_type == T_CDROM && 6351 (page_index->page_flags & CTL_PAGE_FLAG_CDROM) == 0) 6352 continue; 6353 6354 /* 6355 * We don't use this subpage if the user didn't 6356 * request all subpages. 6357 */ 6358 if ((page_index->subpage != 0) 6359 && (subpage == SMS_SUBPAGE_PAGE_0)) 6360 continue; 6361 6362#if 0 6363 printf("found page %#x len %d\n", 6364 page_index->page_code & SMPH_PC_MASK, 6365 page_index->page_len); 6366#endif 6367 page_len += page_index->page_len; 6368 } 6369 break; 6370 } 6371 default: { 6372 u_int i; 6373 6374 page_len = 0; 6375 6376 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6377 page_index = &lun->mode_pages.index[i]; 6378 6379 /* Make sure the page is supported for this dev type */ 6380 if (lun->be_lun->lun_type == T_DIRECT && 6381 (page_index->page_flags & CTL_PAGE_FLAG_DIRECT) == 0) 6382 continue; 6383 if (lun->be_lun->lun_type == T_PROCESSOR && 6384 (page_index->page_flags & CTL_PAGE_FLAG_PROC) == 0) 6385 continue; 6386 if (lun->be_lun->lun_type == T_CDROM && 6387 (page_index->page_flags & CTL_PAGE_FLAG_CDROM) == 0) 6388 continue; 6389 6390 /* Look for the right page code */ 6391 if ((page_index->page_code & SMPH_PC_MASK) != page_code) 6392 continue; 6393 6394 /* Look for the right subpage or the subpage wildcard*/ 6395 if ((page_index->subpage != subpage) 6396 && (subpage != SMS_SUBPAGE_ALL)) 6397 continue; 6398 6399#if 0 6400 printf("found page %#x len %d\n", 6401 page_index->page_code & SMPH_PC_MASK, 6402 page_index->page_len); 6403#endif 6404 6405 page_len += page_index->page_len; 6406 } 6407 6408 if (page_len == 0) { 6409 ctl_set_invalid_field(ctsio, 6410 /*sks_valid*/ 1, 6411 /*command*/ 1, 6412 /*field*/ 2, 6413 /*bit_valid*/ 1, 6414 /*bit*/ 5); 6415 ctl_done((union ctl_io *)ctsio); 6416 return (CTL_RETVAL_COMPLETE); 6417 } 6418 break; 6419 } 6420 } 6421 6422 total_len = header_len + page_len; 6423#if 0 6424 printf("header_len = %d, page_len = %d, total_len = %d\n", 6425 header_len, page_len, total_len); 6426#endif 6427 6428 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 6429 ctsio->kern_sg_entries = 0; 6430 ctsio->kern_data_resid = 0; 6431 ctsio->kern_rel_offset = 0; 6432 if (total_len < alloc_len) { 6433 ctsio->residual = alloc_len - total_len; 6434 ctsio->kern_data_len = total_len; 6435 ctsio->kern_total_len = total_len; 6436 } else { 6437 ctsio->residual = 0; 6438 ctsio->kern_data_len = alloc_len; 6439 ctsio->kern_total_len = alloc_len; 6440 } 6441 6442 switch (ctsio->cdb[0]) { 6443 case MODE_SENSE_6: { 6444 struct scsi_mode_hdr_6 *header; 6445 6446 header = (struct scsi_mode_hdr_6 *)ctsio->kern_data_ptr; 6447 6448 header->datalen = MIN(total_len - 1, 254); 6449 if (lun->be_lun->lun_type == T_DIRECT) { 6450 header->dev_specific = 0x10; /* DPOFUA */ 6451 if ((lun->be_lun->flags & CTL_LUN_FLAG_READONLY) || 6452 (lun->MODE_CTRL.eca_and_aen & SCP_SWP) != 0) 6453 header->dev_specific |= 0x80; /* WP */ 6454 } 6455 if (dbd) 6456 header->block_descr_len = 0; 6457 else 6458 header->block_descr_len = 6459 sizeof(struct scsi_mode_block_descr); 6460 block_desc = (struct scsi_mode_block_descr *)&header[1]; 6461 break; 6462 } 6463 case MODE_SENSE_10: { 6464 struct scsi_mode_hdr_10 *header; 6465 int datalen; 6466 6467 header = (struct scsi_mode_hdr_10 *)ctsio->kern_data_ptr; 6468 6469 datalen = MIN(total_len - 2, 65533); 6470 scsi_ulto2b(datalen, header->datalen); 6471 if (lun->be_lun->lun_type == T_DIRECT) { 6472 header->dev_specific = 0x10; /* DPOFUA */ 6473 if ((lun->be_lun->flags & CTL_LUN_FLAG_READONLY) || 6474 (lun->MODE_CTRL.eca_and_aen & SCP_SWP) != 0) 6475 header->dev_specific |= 0x80; /* WP */ 6476 } 6477 if (dbd) 6478 scsi_ulto2b(0, header->block_descr_len); 6479 else 6480 scsi_ulto2b(sizeof(struct scsi_mode_block_descr), 6481 header->block_descr_len); 6482 block_desc = (struct scsi_mode_block_descr *)&header[1]; 6483 break; 6484 } 6485 default: 6486 panic("%s: Invalid CDB type %#x", __func__, ctsio->cdb[0]); 6487 } 6488 6489 /* 6490 * If we've got a disk, use its blocksize in the block 6491 * descriptor. Otherwise, just set it to 0. 6492 */ 6493 if (dbd == 0) { 6494 if (lun->be_lun->lun_type == T_DIRECT) 6495 scsi_ulto3b(lun->be_lun->blocksize, 6496 block_desc->block_len); 6497 else 6498 scsi_ulto3b(0, block_desc->block_len); 6499 } 6500 6501 switch (page_code) { 6502 case SMS_ALL_PAGES_PAGE: { 6503 int i, data_used; 6504 6505 data_used = header_len; 6506 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6507 struct ctl_page_index *page_index; 6508 6509 page_index = &lun->mode_pages.index[i]; 6510 if (lun->be_lun->lun_type == T_DIRECT && 6511 (page_index->page_flags & CTL_PAGE_FLAG_DIRECT) == 0) 6512 continue; 6513 if (lun->be_lun->lun_type == T_PROCESSOR && 6514 (page_index->page_flags & CTL_PAGE_FLAG_PROC) == 0) 6515 continue; 6516 if (lun->be_lun->lun_type == T_CDROM && 6517 (page_index->page_flags & CTL_PAGE_FLAG_CDROM) == 0) 6518 continue; 6519 6520 /* 6521 * We don't use this subpage if the user didn't 6522 * request all subpages. We already checked (above) 6523 * to make sure the user only specified a subpage 6524 * of 0 or 0xff in the SMS_ALL_PAGES_PAGE case. 6525 */ 6526 if ((page_index->subpage != 0) 6527 && (subpage == SMS_SUBPAGE_PAGE_0)) 6528 continue; 6529 6530 /* 6531 * Call the handler, if it exists, to update the 6532 * page to the latest values. 6533 */ 6534 if (page_index->sense_handler != NULL) 6535 page_index->sense_handler(ctsio, page_index,pc); 6536 6537 memcpy(ctsio->kern_data_ptr + data_used, 6538 page_index->page_data + 6539 (page_index->page_len * pc), 6540 page_index->page_len); 6541 data_used += page_index->page_len; 6542 } 6543 break; 6544 } 6545 default: { 6546 int i, data_used; 6547 6548 data_used = header_len; 6549 6550 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6551 struct ctl_page_index *page_index; 6552 6553 page_index = &lun->mode_pages.index[i]; 6554 6555 /* Look for the right page code */ 6556 if ((page_index->page_code & SMPH_PC_MASK) != page_code) 6557 continue; 6558 6559 /* Look for the right subpage or the subpage wildcard*/ 6560 if ((page_index->subpage != subpage) 6561 && (subpage != SMS_SUBPAGE_ALL)) 6562 continue; 6563 6564 /* Make sure the page is supported for this dev type */ 6565 if (lun->be_lun->lun_type == T_DIRECT && 6566 (page_index->page_flags & CTL_PAGE_FLAG_DIRECT) == 0) 6567 continue; 6568 if (lun->be_lun->lun_type == T_PROCESSOR && 6569 (page_index->page_flags & CTL_PAGE_FLAG_PROC) == 0) 6570 continue; 6571 if (lun->be_lun->lun_type == T_CDROM && 6572 (page_index->page_flags & CTL_PAGE_FLAG_CDROM) == 0) 6573 continue; 6574 6575 /* 6576 * Call the handler, if it exists, to update the 6577 * page to the latest values. 6578 */ 6579 if (page_index->sense_handler != NULL) 6580 page_index->sense_handler(ctsio, page_index,pc); 6581 6582 memcpy(ctsio->kern_data_ptr + data_used, 6583 page_index->page_data + 6584 (page_index->page_len * pc), 6585 page_index->page_len); 6586 data_used += page_index->page_len; 6587 } 6588 break; 6589 } 6590 } 6591 6592 ctl_set_success(ctsio); 6593 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6594 ctsio->be_move_done = ctl_config_move_done; 6595 ctl_datamove((union ctl_io *)ctsio); 6596 return (CTL_RETVAL_COMPLETE); 6597} 6598 6599int 6600ctl_lbp_log_sense_handler(struct ctl_scsiio *ctsio, 6601 struct ctl_page_index *page_index, 6602 int pc) 6603{ 6604 struct ctl_lun *lun = CTL_LUN(ctsio); 6605 struct scsi_log_param_header *phdr; 6606 uint8_t *data; 6607 uint64_t val; 6608 6609 data = page_index->page_data; 6610 6611 if (lun->backend->lun_attr != NULL && 6612 (val = lun->backend->lun_attr(lun->be_lun->be_lun, "blocksavail")) 6613 != UINT64_MAX) { 6614 phdr = (struct scsi_log_param_header *)data; 6615 scsi_ulto2b(0x0001, phdr->param_code); 6616 phdr->param_control = SLP_LBIN | SLP_LP; 6617 phdr->param_len = 8; 6618 data = (uint8_t *)(phdr + 1); 6619 scsi_ulto4b(val >> CTL_LBP_EXPONENT, data); 6620 data[4] = 0x02; /* per-pool */ 6621 data += phdr->param_len; 6622 } 6623 6624 if (lun->backend->lun_attr != NULL && 6625 (val = lun->backend->lun_attr(lun->be_lun->be_lun, "blocksused")) 6626 != UINT64_MAX) { 6627 phdr = (struct scsi_log_param_header *)data; 6628 scsi_ulto2b(0x0002, phdr->param_code); 6629 phdr->param_control = SLP_LBIN | SLP_LP; 6630 phdr->param_len = 8; 6631 data = (uint8_t *)(phdr + 1); 6632 scsi_ulto4b(val >> CTL_LBP_EXPONENT, data); 6633 data[4] = 0x01; /* per-LUN */ 6634 data += phdr->param_len; 6635 } 6636 6637 if (lun->backend->lun_attr != NULL && 6638 (val = lun->backend->lun_attr(lun->be_lun->be_lun, "poolblocksavail")) 6639 != UINT64_MAX) { 6640 phdr = (struct scsi_log_param_header *)data; 6641 scsi_ulto2b(0x00f1, phdr->param_code); 6642 phdr->param_control = SLP_LBIN | SLP_LP; 6643 phdr->param_len = 8; 6644 data = (uint8_t *)(phdr + 1); 6645 scsi_ulto4b(val >> CTL_LBP_EXPONENT, data); 6646 data[4] = 0x02; /* per-pool */ 6647 data += phdr->param_len; 6648 } 6649 6650 if (lun->backend->lun_attr != NULL && 6651 (val = lun->backend->lun_attr(lun->be_lun->be_lun, "poolblocksused")) 6652 != UINT64_MAX) { 6653 phdr = (struct scsi_log_param_header *)data; 6654 scsi_ulto2b(0x00f2, phdr->param_code); 6655 phdr->param_control = SLP_LBIN | SLP_LP; 6656 phdr->param_len = 8; 6657 data = (uint8_t *)(phdr + 1); 6658 scsi_ulto4b(val >> CTL_LBP_EXPONENT, data); 6659 data[4] = 0x02; /* per-pool */ 6660 data += phdr->param_len; 6661 } 6662 6663 page_index->page_len = data - page_index->page_data; 6664 return (0); 6665} 6666 6667int 6668ctl_sap_log_sense_handler(struct ctl_scsiio *ctsio, 6669 struct ctl_page_index *page_index, 6670 int pc) 6671{ 6672 struct ctl_lun *lun = CTL_LUN(ctsio); 6673 struct stat_page *data; 6674 uint64_t rn, wn, rb, wb; 6675 struct bintime rt, wt; 6676 int i; 6677 6678 data = (struct stat_page *)page_index->page_data; 6679 6680 scsi_ulto2b(SLP_SAP, data->sap.hdr.param_code); 6681 data->sap.hdr.param_control = SLP_LBIN; 6682 data->sap.hdr.param_len = sizeof(struct scsi_log_stat_and_perf) - 6683 sizeof(struct scsi_log_param_header); 6684 rn = wn = rb = wb = 0; 6685 bintime_clear(&rt); 6686 bintime_clear(&wt); 6687 for (i = 0; i < CTL_MAX_PORTS; i++) { 6688 rn += lun->stats.ports[i].operations[CTL_STATS_READ]; 6689 wn += lun->stats.ports[i].operations[CTL_STATS_WRITE]; 6690 rb += lun->stats.ports[i].bytes[CTL_STATS_READ]; 6691 wb += lun->stats.ports[i].bytes[CTL_STATS_WRITE]; 6692 bintime_add(&rt, &lun->stats.ports[i].time[CTL_STATS_READ]); 6693 bintime_add(&wt, &lun->stats.ports[i].time[CTL_STATS_WRITE]); 6694 } 6695 scsi_u64to8b(rn, data->sap.read_num); 6696 scsi_u64to8b(wn, data->sap.write_num); 6697 if (lun->stats.blocksize > 0) { 6698 scsi_u64to8b(wb / lun->stats.blocksize, 6699 data->sap.recvieved_lba); 6700 scsi_u64to8b(rb / lun->stats.blocksize, 6701 data->sap.transmitted_lba); 6702 } 6703 scsi_u64to8b((uint64_t)rt.sec * 1000 + rt.frac / (UINT64_MAX / 1000), 6704 data->sap.read_int); 6705 scsi_u64to8b((uint64_t)wt.sec * 1000 + wt.frac / (UINT64_MAX / 1000), 6706 data->sap.write_int); 6707 scsi_u64to8b(0, data->sap.weighted_num); 6708 scsi_u64to8b(0, data->sap.weighted_int); 6709 scsi_ulto2b(SLP_IT, data->it.hdr.param_code); 6710 data->it.hdr.param_control = SLP_LBIN; 6711 data->it.hdr.param_len = sizeof(struct scsi_log_idle_time) - 6712 sizeof(struct scsi_log_param_header); 6713#ifdef CTL_TIME_IO 6714 scsi_u64to8b(lun->idle_time / SBT_1MS, data->it.idle_int); 6715#endif 6716 scsi_ulto2b(SLP_TI, data->ti.hdr.param_code); 6717 data->it.hdr.param_control = SLP_LBIN; 6718 data->ti.hdr.param_len = sizeof(struct scsi_log_time_interval) - 6719 sizeof(struct scsi_log_param_header); 6720 scsi_ulto4b(3, data->ti.exponent); 6721 scsi_ulto4b(1, data->ti.integer); 6722 return (0); 6723} 6724 6725int 6726ctl_ie_log_sense_handler(struct ctl_scsiio *ctsio, 6727 struct ctl_page_index *page_index, 6728 int pc) 6729{ 6730 struct ctl_lun *lun = CTL_LUN(ctsio); 6731 struct scsi_log_informational_exceptions *data; 6732 6733 data = (struct scsi_log_informational_exceptions *)page_index->page_data; 6734 6735 scsi_ulto2b(SLP_IE_GEN, data->hdr.param_code); 6736 data->hdr.param_control = SLP_LBIN; 6737 data->hdr.param_len = sizeof(struct scsi_log_informational_exceptions) - 6738 sizeof(struct scsi_log_param_header); 6739 data->ie_asc = lun->ie_asc; 6740 data->ie_ascq = lun->ie_ascq; 6741 data->temperature = 0xff; 6742 return (0); 6743} 6744 6745int 6746ctl_log_sense(struct ctl_scsiio *ctsio) 6747{ 6748 struct ctl_lun *lun = CTL_LUN(ctsio); 6749 int i, pc, page_code, subpage; 6750 int alloc_len, total_len; 6751 struct ctl_page_index *page_index; 6752 struct scsi_log_sense *cdb; 6753 struct scsi_log_header *header; 6754 6755 CTL_DEBUG_PRINT(("ctl_log_sense\n")); 6756 6757 cdb = (struct scsi_log_sense *)ctsio->cdb; 6758 pc = (cdb->page & SLS_PAGE_CTRL_MASK) >> 6; 6759 page_code = cdb->page & SLS_PAGE_CODE; 6760 subpage = cdb->subpage; 6761 alloc_len = scsi_2btoul(cdb->length); 6762 6763 page_index = NULL; 6764 for (i = 0; i < CTL_NUM_LOG_PAGES; i++) { 6765 page_index = &lun->log_pages.index[i]; 6766 6767 /* Look for the right page code */ 6768 if ((page_index->page_code & SL_PAGE_CODE) != page_code) 6769 continue; 6770 6771 /* Look for the right subpage or the subpage wildcard*/ 6772 if (page_index->subpage != subpage) 6773 continue; 6774 6775 break; 6776 } 6777 if (i >= CTL_NUM_LOG_PAGES) { 6778 ctl_set_invalid_field(ctsio, 6779 /*sks_valid*/ 1, 6780 /*command*/ 1, 6781 /*field*/ 2, 6782 /*bit_valid*/ 0, 6783 /*bit*/ 0); 6784 ctl_done((union ctl_io *)ctsio); 6785 return (CTL_RETVAL_COMPLETE); 6786 } 6787 6788 total_len = sizeof(struct scsi_log_header) + page_index->page_len; 6789 6790 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 6791 ctsio->kern_sg_entries = 0; 6792 ctsio->kern_data_resid = 0; 6793 ctsio->kern_rel_offset = 0; 6794 if (total_len < alloc_len) { 6795 ctsio->residual = alloc_len - total_len; 6796 ctsio->kern_data_len = total_len; 6797 ctsio->kern_total_len = total_len; 6798 } else { 6799 ctsio->residual = 0; 6800 ctsio->kern_data_len = alloc_len; 6801 ctsio->kern_total_len = alloc_len; 6802 } 6803 6804 header = (struct scsi_log_header *)ctsio->kern_data_ptr; 6805 header->page = page_index->page_code; 6806 if (page_index->page_code == SLS_LOGICAL_BLOCK_PROVISIONING) 6807 header->page |= SL_DS; 6808 if (page_index->subpage) { 6809 header->page |= SL_SPF; 6810 header->subpage = page_index->subpage; 6811 } 6812 scsi_ulto2b(page_index->page_len, header->datalen); 6813 6814 /* 6815 * Call the handler, if it exists, to update the 6816 * page to the latest values. 6817 */ 6818 if (page_index->sense_handler != NULL) 6819 page_index->sense_handler(ctsio, page_index, pc); 6820 6821 memcpy(header + 1, page_index->page_data, page_index->page_len); 6822 6823 ctl_set_success(ctsio); 6824 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6825 ctsio->be_move_done = ctl_config_move_done; 6826 ctl_datamove((union ctl_io *)ctsio); 6827 return (CTL_RETVAL_COMPLETE); 6828} 6829 6830int 6831ctl_read_capacity(struct ctl_scsiio *ctsio) 6832{ 6833 struct ctl_lun *lun = CTL_LUN(ctsio); 6834 struct scsi_read_capacity *cdb; 6835 struct scsi_read_capacity_data *data; 6836 uint32_t lba; 6837 6838 CTL_DEBUG_PRINT(("ctl_read_capacity\n")); 6839 6840 cdb = (struct scsi_read_capacity *)ctsio->cdb; 6841 6842 lba = scsi_4btoul(cdb->addr); 6843 if (((cdb->pmi & SRC_PMI) == 0) 6844 && (lba != 0)) { 6845 ctl_set_invalid_field(/*ctsio*/ ctsio, 6846 /*sks_valid*/ 1, 6847 /*command*/ 1, 6848 /*field*/ 2, 6849 /*bit_valid*/ 0, 6850 /*bit*/ 0); 6851 ctl_done((union ctl_io *)ctsio); 6852 return (CTL_RETVAL_COMPLETE); 6853 } 6854 6855 ctsio->kern_data_ptr = malloc(sizeof(*data), M_CTL, M_WAITOK | M_ZERO); 6856 data = (struct scsi_read_capacity_data *)ctsio->kern_data_ptr; 6857 ctsio->residual = 0; 6858 ctsio->kern_data_len = sizeof(*data); 6859 ctsio->kern_total_len = sizeof(*data); 6860 ctsio->kern_data_resid = 0; 6861 ctsio->kern_rel_offset = 0; 6862 ctsio->kern_sg_entries = 0; 6863 6864 /* 6865 * If the maximum LBA is greater than 0xfffffffe, the user must 6866 * issue a SERVICE ACTION IN (16) command, with the read capacity 6867 * serivce action set. 6868 */ 6869 if (lun->be_lun->maxlba > 0xfffffffe) 6870 scsi_ulto4b(0xffffffff, data->addr); 6871 else 6872 scsi_ulto4b(lun->be_lun->maxlba, data->addr); 6873 6874 /* 6875 * XXX KDM this may not be 512 bytes... 6876 */ 6877 scsi_ulto4b(lun->be_lun->blocksize, data->length); 6878 6879 ctl_set_success(ctsio); 6880 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6881 ctsio->be_move_done = ctl_config_move_done; 6882 ctl_datamove((union ctl_io *)ctsio); 6883 return (CTL_RETVAL_COMPLETE); 6884} 6885 6886int 6887ctl_read_capacity_16(struct ctl_scsiio *ctsio) 6888{ 6889 struct ctl_lun *lun = CTL_LUN(ctsio); 6890 struct scsi_read_capacity_16 *cdb; 6891 struct scsi_read_capacity_data_long *data; 6892 uint64_t lba; 6893 uint32_t alloc_len; 6894 6895 CTL_DEBUG_PRINT(("ctl_read_capacity_16\n")); 6896 6897 cdb = (struct scsi_read_capacity_16 *)ctsio->cdb; 6898 6899 alloc_len = scsi_4btoul(cdb->alloc_len); 6900 lba = scsi_8btou64(cdb->addr); 6901 6902 if ((cdb->reladr & SRC16_PMI) 6903 && (lba != 0)) { 6904 ctl_set_invalid_field(/*ctsio*/ ctsio, 6905 /*sks_valid*/ 1, 6906 /*command*/ 1, 6907 /*field*/ 2, 6908 /*bit_valid*/ 0, 6909 /*bit*/ 0); 6910 ctl_done((union ctl_io *)ctsio); 6911 return (CTL_RETVAL_COMPLETE); 6912 } 6913 6914 ctsio->kern_data_ptr = malloc(sizeof(*data), M_CTL, M_WAITOK | M_ZERO); 6915 data = (struct scsi_read_capacity_data_long *)ctsio->kern_data_ptr; 6916 6917 if (sizeof(*data) < alloc_len) { 6918 ctsio->residual = alloc_len - sizeof(*data); 6919 ctsio->kern_data_len = sizeof(*data); 6920 ctsio->kern_total_len = sizeof(*data); 6921 } else { 6922 ctsio->residual = 0; 6923 ctsio->kern_data_len = alloc_len; 6924 ctsio->kern_total_len = alloc_len; 6925 } 6926 ctsio->kern_data_resid = 0; 6927 ctsio->kern_rel_offset = 0; 6928 ctsio->kern_sg_entries = 0; 6929 6930 scsi_u64to8b(lun->be_lun->maxlba, data->addr); 6931 /* XXX KDM this may not be 512 bytes... */ 6932 scsi_ulto4b(lun->be_lun->blocksize, data->length); 6933 data->prot_lbppbe = lun->be_lun->pblockexp & SRC16_LBPPBE; 6934 scsi_ulto2b(lun->be_lun->pblockoff & SRC16_LALBA_A, data->lalba_lbp); 6935 if (lun->be_lun->flags & CTL_LUN_FLAG_UNMAP) 6936 data->lalba_lbp[0] |= SRC16_LBPME | SRC16_LBPRZ; 6937 6938 ctl_set_success(ctsio); 6939 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6940 ctsio->be_move_done = ctl_config_move_done; 6941 ctl_datamove((union ctl_io *)ctsio); 6942 return (CTL_RETVAL_COMPLETE); 6943} 6944 6945int 6946ctl_get_lba_status(struct ctl_scsiio *ctsio) 6947{ 6948 struct ctl_lun *lun = CTL_LUN(ctsio); 6949 struct scsi_get_lba_status *cdb; 6950 struct scsi_get_lba_status_data *data; 6951 struct ctl_lba_len_flags *lbalen; 6952 uint64_t lba; 6953 uint32_t alloc_len, total_len; 6954 int retval; 6955 6956 CTL_DEBUG_PRINT(("ctl_get_lba_status\n")); 6957 6958 cdb = (struct scsi_get_lba_status *)ctsio->cdb; 6959 lba = scsi_8btou64(cdb->addr); 6960 alloc_len = scsi_4btoul(cdb->alloc_len); 6961 6962 if (lba > lun->be_lun->maxlba) { 6963 ctl_set_lba_out_of_range(ctsio, lba); 6964 ctl_done((union ctl_io *)ctsio); 6965 return (CTL_RETVAL_COMPLETE); 6966 } 6967 6968 total_len = sizeof(*data) + sizeof(data->descr[0]); 6969 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 6970 data = (struct scsi_get_lba_status_data *)ctsio->kern_data_ptr; 6971 6972 if (total_len < alloc_len) { 6973 ctsio->residual = alloc_len - total_len; 6974 ctsio->kern_data_len = total_len; 6975 ctsio->kern_total_len = total_len; 6976 } else { 6977 ctsio->residual = 0; 6978 ctsio->kern_data_len = alloc_len; 6979 ctsio->kern_total_len = alloc_len; 6980 } 6981 ctsio->kern_data_resid = 0; 6982 ctsio->kern_rel_offset = 0; 6983 ctsio->kern_sg_entries = 0; 6984 6985 /* Fill dummy data in case backend can't tell anything. */ 6986 scsi_ulto4b(4 + sizeof(data->descr[0]), data->length); 6987 scsi_u64to8b(lba, data->descr[0].addr); 6988 scsi_ulto4b(MIN(UINT32_MAX, lun->be_lun->maxlba + 1 - lba), 6989 data->descr[0].length); 6990 data->descr[0].status = 0; /* Mapped or unknown. */ 6991 6992 ctl_set_success(ctsio); 6993 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6994 ctsio->be_move_done = ctl_config_move_done; 6995 6996 lbalen = (struct ctl_lba_len_flags *)&ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 6997 lbalen->lba = lba; 6998 lbalen->len = total_len; 6999 lbalen->flags = 0; 7000 retval = lun->backend->config_read((union ctl_io *)ctsio); 7001 return (CTL_RETVAL_COMPLETE); 7002} 7003 7004int 7005ctl_read_defect(struct ctl_scsiio *ctsio) 7006{ 7007 struct scsi_read_defect_data_10 *ccb10; 7008 struct scsi_read_defect_data_12 *ccb12; 7009 struct scsi_read_defect_data_hdr_10 *data10; 7010 struct scsi_read_defect_data_hdr_12 *data12; 7011 uint32_t alloc_len, data_len; 7012 uint8_t format; 7013 7014 CTL_DEBUG_PRINT(("ctl_read_defect\n")); 7015 7016 if (ctsio->cdb[0] == READ_DEFECT_DATA_10) { 7017 ccb10 = (struct scsi_read_defect_data_10 *)&ctsio->cdb; 7018 format = ccb10->format; 7019 alloc_len = scsi_2btoul(ccb10->alloc_length); 7020 data_len = sizeof(*data10); 7021 } else { 7022 ccb12 = (struct scsi_read_defect_data_12 *)&ctsio->cdb; 7023 format = ccb12->format; 7024 alloc_len = scsi_4btoul(ccb12->alloc_length); 7025 data_len = sizeof(*data12); 7026 } 7027 if (alloc_len == 0) { 7028 ctl_set_success(ctsio); 7029 ctl_done((union ctl_io *)ctsio); 7030 return (CTL_RETVAL_COMPLETE); 7031 } 7032 7033 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 7034 if (data_len < alloc_len) { 7035 ctsio->residual = alloc_len - data_len; 7036 ctsio->kern_data_len = data_len; 7037 ctsio->kern_total_len = data_len; 7038 } else { 7039 ctsio->residual = 0; 7040 ctsio->kern_data_len = alloc_len; 7041 ctsio->kern_total_len = alloc_len; 7042 } 7043 ctsio->kern_data_resid = 0; 7044 ctsio->kern_rel_offset = 0; 7045 ctsio->kern_sg_entries = 0; 7046 7047 if (ctsio->cdb[0] == READ_DEFECT_DATA_10) { 7048 data10 = (struct scsi_read_defect_data_hdr_10 *) 7049 ctsio->kern_data_ptr; 7050 data10->format = format; 7051 scsi_ulto2b(0, data10->length); 7052 } else { 7053 data12 = (struct scsi_read_defect_data_hdr_12 *) 7054 ctsio->kern_data_ptr; 7055 data12->format = format; 7056 scsi_ulto2b(0, data12->generation); 7057 scsi_ulto4b(0, data12->length); 7058 } 7059 7060 ctl_set_success(ctsio); 7061 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7062 ctsio->be_move_done = ctl_config_move_done; 7063 ctl_datamove((union ctl_io *)ctsio); 7064 return (CTL_RETVAL_COMPLETE); 7065} 7066 7067int 7068ctl_report_tagret_port_groups(struct ctl_scsiio *ctsio) 7069{ 7070 struct ctl_softc *softc = CTL_SOFTC(ctsio); 7071 struct ctl_lun *lun = CTL_LUN(ctsio); 7072 struct scsi_maintenance_in *cdb; 7073 int retval; 7074 int alloc_len, ext, total_len = 0, g, pc, pg, ts, os; 7075 int num_ha_groups, num_target_ports, shared_group; 7076 struct ctl_port *port; 7077 struct scsi_target_group_data *rtg_ptr; 7078 struct scsi_target_group_data_extended *rtg_ext_ptr; 7079 struct scsi_target_port_group_descriptor *tpg_desc; 7080 7081 CTL_DEBUG_PRINT(("ctl_report_tagret_port_groups\n")); 7082 7083 cdb = (struct scsi_maintenance_in *)ctsio->cdb; 7084 retval = CTL_RETVAL_COMPLETE; 7085 7086 switch (cdb->byte2 & STG_PDF_MASK) { 7087 case STG_PDF_LENGTH: 7088 ext = 0; 7089 break; 7090 case STG_PDF_EXTENDED: 7091 ext = 1; 7092 break; 7093 default: 7094 ctl_set_invalid_field(/*ctsio*/ ctsio, 7095 /*sks_valid*/ 1, 7096 /*command*/ 1, 7097 /*field*/ 2, 7098 /*bit_valid*/ 1, 7099 /*bit*/ 5); 7100 ctl_done((union ctl_io *)ctsio); 7101 return(retval); 7102 } 7103 7104 num_target_ports = 0; 7105 shared_group = (softc->is_single != 0); 7106 mtx_lock(&softc->ctl_lock); 7107 STAILQ_FOREACH(port, &softc->port_list, links) { 7108 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 7109 continue; 7110 if (ctl_lun_map_to_port(port, lun->lun) == UINT32_MAX) 7111 continue; 7112 num_target_ports++; 7113 if (port->status & CTL_PORT_STATUS_HA_SHARED) 7114 shared_group = 1; 7115 } 7116 mtx_unlock(&softc->ctl_lock); 7117 num_ha_groups = (softc->is_single) ? 0 : NUM_HA_SHELVES; 7118 7119 if (ext) 7120 total_len = sizeof(struct scsi_target_group_data_extended); 7121 else 7122 total_len = sizeof(struct scsi_target_group_data); 7123 total_len += sizeof(struct scsi_target_port_group_descriptor) * 7124 (shared_group + num_ha_groups) + 7125 sizeof(struct scsi_target_port_descriptor) * num_target_ports; 7126 7127 alloc_len = scsi_4btoul(cdb->length); 7128 7129 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7130 7131 ctsio->kern_sg_entries = 0; 7132 7133 if (total_len < alloc_len) { 7134 ctsio->residual = alloc_len - total_len; 7135 ctsio->kern_data_len = total_len; 7136 ctsio->kern_total_len = total_len; 7137 } else { 7138 ctsio->residual = 0; 7139 ctsio->kern_data_len = alloc_len; 7140 ctsio->kern_total_len = alloc_len; 7141 } 7142 ctsio->kern_data_resid = 0; 7143 ctsio->kern_rel_offset = 0; 7144 7145 if (ext) { 7146 rtg_ext_ptr = (struct scsi_target_group_data_extended *) 7147 ctsio->kern_data_ptr; 7148 scsi_ulto4b(total_len - 4, rtg_ext_ptr->length); 7149 rtg_ext_ptr->format_type = 0x10; 7150 rtg_ext_ptr->implicit_transition_time = 0; 7151 tpg_desc = &rtg_ext_ptr->groups[0]; 7152 } else { 7153 rtg_ptr = (struct scsi_target_group_data *) 7154 ctsio->kern_data_ptr; 7155 scsi_ulto4b(total_len - 4, rtg_ptr->length); 7156 tpg_desc = &rtg_ptr->groups[0]; 7157 } 7158 7159 mtx_lock(&softc->ctl_lock); 7160 pg = softc->port_min / softc->port_cnt; 7161 if (lun->flags & (CTL_LUN_PRIMARY_SC | CTL_LUN_PEER_SC_PRIMARY)) { 7162 /* Some shelf is known to be primary. */ 7163 if (softc->ha_link == CTL_HA_LINK_OFFLINE) 7164 os = TPG_ASYMMETRIC_ACCESS_UNAVAILABLE; 7165 else if (softc->ha_link == CTL_HA_LINK_UNKNOWN) 7166 os = TPG_ASYMMETRIC_ACCESS_TRANSITIONING; 7167 else if (softc->ha_mode == CTL_HA_MODE_ACT_STBY) 7168 os = TPG_ASYMMETRIC_ACCESS_STANDBY; 7169 else 7170 os = TPG_ASYMMETRIC_ACCESS_NONOPTIMIZED; 7171 if (lun->flags & CTL_LUN_PRIMARY_SC) { 7172 ts = TPG_ASYMMETRIC_ACCESS_OPTIMIZED; 7173 } else { 7174 ts = os; 7175 os = TPG_ASYMMETRIC_ACCESS_OPTIMIZED; 7176 } 7177 } else { 7178 /* No known primary shelf. */ 7179 if (softc->ha_link == CTL_HA_LINK_OFFLINE) { 7180 ts = TPG_ASYMMETRIC_ACCESS_UNAVAILABLE; 7181 os = TPG_ASYMMETRIC_ACCESS_OPTIMIZED; 7182 } else if (softc->ha_link == CTL_HA_LINK_UNKNOWN) { 7183 ts = TPG_ASYMMETRIC_ACCESS_TRANSITIONING; 7184 os = TPG_ASYMMETRIC_ACCESS_OPTIMIZED; 7185 } else { 7186 ts = os = TPG_ASYMMETRIC_ACCESS_TRANSITIONING; 7187 } 7188 } 7189 if (shared_group) { 7190 tpg_desc->pref_state = ts; 7191 tpg_desc->support = TPG_AO_SUP | TPG_AN_SUP | TPG_S_SUP | 7192 TPG_U_SUP | TPG_T_SUP; 7193 scsi_ulto2b(1, tpg_desc->target_port_group); 7194 tpg_desc->status = TPG_IMPLICIT; 7195 pc = 0; 7196 STAILQ_FOREACH(port, &softc->port_list, links) { 7197 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 7198 continue; 7199 if (!softc->is_single && 7200 (port->status & CTL_PORT_STATUS_HA_SHARED) == 0) 7201 continue; 7202 if (ctl_lun_map_to_port(port, lun->lun) == UINT32_MAX) 7203 continue; 7204 scsi_ulto2b(port->targ_port, tpg_desc->descriptors[pc]. 7205 relative_target_port_identifier); 7206 pc++; 7207 } 7208 tpg_desc->target_port_count = pc; 7209 tpg_desc = (struct scsi_target_port_group_descriptor *) 7210 &tpg_desc->descriptors[pc]; 7211 } 7212 for (g = 0; g < num_ha_groups; g++) { 7213 tpg_desc->pref_state = (g == pg) ? ts : os; 7214 tpg_desc->support = TPG_AO_SUP | TPG_AN_SUP | TPG_S_SUP | 7215 TPG_U_SUP | TPG_T_SUP; 7216 scsi_ulto2b(2 + g, tpg_desc->target_port_group); 7217 tpg_desc->status = TPG_IMPLICIT; 7218 pc = 0; 7219 STAILQ_FOREACH(port, &softc->port_list, links) { 7220 if (port->targ_port < g * softc->port_cnt || 7221 port->targ_port >= (g + 1) * softc->port_cnt) 7222 continue; 7223 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 7224 continue; 7225 if (port->status & CTL_PORT_STATUS_HA_SHARED) 7226 continue; 7227 if (ctl_lun_map_to_port(port, lun->lun) == UINT32_MAX) 7228 continue; 7229 scsi_ulto2b(port->targ_port, tpg_desc->descriptors[pc]. 7230 relative_target_port_identifier); 7231 pc++; 7232 } 7233 tpg_desc->target_port_count = pc; 7234 tpg_desc = (struct scsi_target_port_group_descriptor *) 7235 &tpg_desc->descriptors[pc]; 7236 } 7237 mtx_unlock(&softc->ctl_lock); 7238 7239 ctl_set_success(ctsio); 7240 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7241 ctsio->be_move_done = ctl_config_move_done; 7242 ctl_datamove((union ctl_io *)ctsio); 7243 return(retval); 7244} 7245 7246int 7247ctl_report_supported_opcodes(struct ctl_scsiio *ctsio) 7248{ 7249 struct ctl_lun *lun = CTL_LUN(ctsio); 7250 struct scsi_report_supported_opcodes *cdb; 7251 const struct ctl_cmd_entry *entry, *sentry; 7252 struct scsi_report_supported_opcodes_all *all; 7253 struct scsi_report_supported_opcodes_descr *descr; 7254 struct scsi_report_supported_opcodes_one *one; 7255 int retval; 7256 int alloc_len, total_len; 7257 int opcode, service_action, i, j, num; 7258 7259 CTL_DEBUG_PRINT(("ctl_report_supported_opcodes\n")); 7260 7261 cdb = (struct scsi_report_supported_opcodes *)ctsio->cdb; 7262 retval = CTL_RETVAL_COMPLETE; 7263 7264 opcode = cdb->requested_opcode; 7265 service_action = scsi_2btoul(cdb->requested_service_action); 7266 switch (cdb->options & RSO_OPTIONS_MASK) { 7267 case RSO_OPTIONS_ALL: 7268 num = 0; 7269 for (i = 0; i < 256; i++) { 7270 entry = &ctl_cmd_table[i]; 7271 if (entry->flags & CTL_CMD_FLAG_SA5) { 7272 for (j = 0; j < 32; j++) { 7273 sentry = &((const struct ctl_cmd_entry *) 7274 entry->execute)[j]; 7275 if (ctl_cmd_applicable( 7276 lun->be_lun->lun_type, sentry)) 7277 num++; 7278 } 7279 } else { 7280 if (ctl_cmd_applicable(lun->be_lun->lun_type, 7281 entry)) 7282 num++; 7283 } 7284 } 7285 total_len = sizeof(struct scsi_report_supported_opcodes_all) + 7286 num * sizeof(struct scsi_report_supported_opcodes_descr); 7287 break; 7288 case RSO_OPTIONS_OC: 7289 if (ctl_cmd_table[opcode].flags & CTL_CMD_FLAG_SA5) { 7290 ctl_set_invalid_field(/*ctsio*/ ctsio, 7291 /*sks_valid*/ 1, 7292 /*command*/ 1, 7293 /*field*/ 2, 7294 /*bit_valid*/ 1, 7295 /*bit*/ 2); 7296 ctl_done((union ctl_io *)ctsio); 7297 return (CTL_RETVAL_COMPLETE); 7298 } 7299 total_len = sizeof(struct scsi_report_supported_opcodes_one) + 32; 7300 break; 7301 case RSO_OPTIONS_OC_SA: 7302 if ((ctl_cmd_table[opcode].flags & CTL_CMD_FLAG_SA5) == 0 || 7303 service_action >= 32) { 7304 ctl_set_invalid_field(/*ctsio*/ ctsio, 7305 /*sks_valid*/ 1, 7306 /*command*/ 1, 7307 /*field*/ 2, 7308 /*bit_valid*/ 1, 7309 /*bit*/ 2); 7310 ctl_done((union ctl_io *)ctsio); 7311 return (CTL_RETVAL_COMPLETE); 7312 } 7313 /* FALLTHROUGH */ 7314 case RSO_OPTIONS_OC_ASA: 7315 total_len = sizeof(struct scsi_report_supported_opcodes_one) + 32; 7316 break; 7317 default: 7318 ctl_set_invalid_field(/*ctsio*/ ctsio, 7319 /*sks_valid*/ 1, 7320 /*command*/ 1, 7321 /*field*/ 2, 7322 /*bit_valid*/ 1, 7323 /*bit*/ 2); 7324 ctl_done((union ctl_io *)ctsio); 7325 return (CTL_RETVAL_COMPLETE); 7326 } 7327 7328 alloc_len = scsi_4btoul(cdb->length); 7329 7330 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7331 7332 ctsio->kern_sg_entries = 0; 7333 7334 if (total_len < alloc_len) { 7335 ctsio->residual = alloc_len - total_len; 7336 ctsio->kern_data_len = total_len; 7337 ctsio->kern_total_len = total_len; 7338 } else { 7339 ctsio->residual = 0; 7340 ctsio->kern_data_len = alloc_len; 7341 ctsio->kern_total_len = alloc_len; 7342 } 7343 ctsio->kern_data_resid = 0; 7344 ctsio->kern_rel_offset = 0; 7345 7346 switch (cdb->options & RSO_OPTIONS_MASK) { 7347 case RSO_OPTIONS_ALL: 7348 all = (struct scsi_report_supported_opcodes_all *) 7349 ctsio->kern_data_ptr; 7350 num = 0; 7351 for (i = 0; i < 256; i++) { 7352 entry = &ctl_cmd_table[i]; 7353 if (entry->flags & CTL_CMD_FLAG_SA5) { 7354 for (j = 0; j < 32; j++) { 7355 sentry = &((const struct ctl_cmd_entry *) 7356 entry->execute)[j]; 7357 if (!ctl_cmd_applicable( 7358 lun->be_lun->lun_type, sentry)) 7359 continue; 7360 descr = &all->descr[num++]; 7361 descr->opcode = i; 7362 scsi_ulto2b(j, descr->service_action); 7363 descr->flags = RSO_SERVACTV; 7364 scsi_ulto2b(sentry->length, 7365 descr->cdb_length); 7366 } 7367 } else { 7368 if (!ctl_cmd_applicable(lun->be_lun->lun_type, 7369 entry)) 7370 continue; 7371 descr = &all->descr[num++]; 7372 descr->opcode = i; 7373 scsi_ulto2b(0, descr->service_action); 7374 descr->flags = 0; 7375 scsi_ulto2b(entry->length, descr->cdb_length); 7376 } 7377 } 7378 scsi_ulto4b( 7379 num * sizeof(struct scsi_report_supported_opcodes_descr), 7380 all->length); 7381 break; 7382 case RSO_OPTIONS_OC: 7383 one = (struct scsi_report_supported_opcodes_one *) 7384 ctsio->kern_data_ptr; 7385 entry = &ctl_cmd_table[opcode]; 7386 goto fill_one; 7387 case RSO_OPTIONS_OC_SA: 7388 one = (struct scsi_report_supported_opcodes_one *) 7389 ctsio->kern_data_ptr; 7390 entry = &ctl_cmd_table[opcode]; 7391 entry = &((const struct ctl_cmd_entry *) 7392 entry->execute)[service_action]; 7393fill_one: 7394 if (ctl_cmd_applicable(lun->be_lun->lun_type, entry)) { 7395 one->support = 3; 7396 scsi_ulto2b(entry->length, one->cdb_length); 7397 one->cdb_usage[0] = opcode; 7398 memcpy(&one->cdb_usage[1], entry->usage, 7399 entry->length - 1); 7400 } else 7401 one->support = 1; 7402 break; 7403 case RSO_OPTIONS_OC_ASA: 7404 one = (struct scsi_report_supported_opcodes_one *) 7405 ctsio->kern_data_ptr; 7406 entry = &ctl_cmd_table[opcode]; 7407 if (entry->flags & CTL_CMD_FLAG_SA5) { 7408 entry = &((const struct ctl_cmd_entry *) 7409 entry->execute)[service_action]; 7410 } else if (service_action != 0) { 7411 one->support = 1; 7412 break; 7413 } 7414 goto fill_one; 7415 } 7416 7417 ctl_set_success(ctsio); 7418 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7419 ctsio->be_move_done = ctl_config_move_done; 7420 ctl_datamove((union ctl_io *)ctsio); 7421 return(retval); 7422} 7423 7424int 7425ctl_report_supported_tmf(struct ctl_scsiio *ctsio) 7426{ 7427 struct scsi_report_supported_tmf *cdb; 7428 struct scsi_report_supported_tmf_ext_data *data; 7429 int retval; 7430 int alloc_len, total_len; 7431 7432 CTL_DEBUG_PRINT(("ctl_report_supported_tmf\n")); 7433 7434 cdb = (struct scsi_report_supported_tmf *)ctsio->cdb; 7435 7436 retval = CTL_RETVAL_COMPLETE; 7437 7438 if (cdb->options & RST_REPD) 7439 total_len = sizeof(struct scsi_report_supported_tmf_ext_data); 7440 else 7441 total_len = sizeof(struct scsi_report_supported_tmf_data); 7442 alloc_len = scsi_4btoul(cdb->length); 7443 7444 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7445 7446 ctsio->kern_sg_entries = 0; 7447 7448 if (total_len < alloc_len) { 7449 ctsio->residual = alloc_len - total_len; 7450 ctsio->kern_data_len = total_len; 7451 ctsio->kern_total_len = total_len; 7452 } else { 7453 ctsio->residual = 0; 7454 ctsio->kern_data_len = alloc_len; 7455 ctsio->kern_total_len = alloc_len; 7456 } 7457 ctsio->kern_data_resid = 0; 7458 ctsio->kern_rel_offset = 0; 7459 7460 data = (struct scsi_report_supported_tmf_ext_data *)ctsio->kern_data_ptr; 7461 data->byte1 |= RST_ATS | RST_ATSS | RST_CTSS | RST_LURS | RST_QTS | 7462 RST_TRS; 7463 data->byte2 |= RST_QAES | RST_QTSS | RST_ITNRS; 7464 data->length = total_len - 4; 7465 7466 ctl_set_success(ctsio); 7467 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7468 ctsio->be_move_done = ctl_config_move_done; 7469 ctl_datamove((union ctl_io *)ctsio); 7470 return (retval); 7471} 7472 7473int 7474ctl_report_timestamp(struct ctl_scsiio *ctsio) 7475{ 7476 struct scsi_report_timestamp *cdb; 7477 struct scsi_report_timestamp_data *data; 7478 struct timeval tv; 7479 int64_t timestamp; 7480 int retval; 7481 int alloc_len, total_len; 7482 7483 CTL_DEBUG_PRINT(("ctl_report_timestamp\n")); 7484 7485 cdb = (struct scsi_report_timestamp *)ctsio->cdb; 7486 7487 retval = CTL_RETVAL_COMPLETE; 7488 7489 total_len = sizeof(struct scsi_report_timestamp_data); 7490 alloc_len = scsi_4btoul(cdb->length); 7491 7492 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7493 7494 ctsio->kern_sg_entries = 0; 7495 7496 if (total_len < alloc_len) { 7497 ctsio->residual = alloc_len - total_len; 7498 ctsio->kern_data_len = total_len; 7499 ctsio->kern_total_len = total_len; 7500 } else { 7501 ctsio->residual = 0; 7502 ctsio->kern_data_len = alloc_len; 7503 ctsio->kern_total_len = alloc_len; 7504 } 7505 ctsio->kern_data_resid = 0; 7506 ctsio->kern_rel_offset = 0; 7507 7508 data = (struct scsi_report_timestamp_data *)ctsio->kern_data_ptr; 7509 scsi_ulto2b(sizeof(*data) - 2, data->length); 7510 data->origin = RTS_ORIG_OUTSIDE; 7511 getmicrotime(&tv); 7512 timestamp = (int64_t)tv.tv_sec * 1000 + tv.tv_usec / 1000; 7513 scsi_ulto4b(timestamp >> 16, data->timestamp); 7514 scsi_ulto2b(timestamp & 0xffff, &data->timestamp[4]); 7515 7516 ctl_set_success(ctsio); 7517 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7518 ctsio->be_move_done = ctl_config_move_done; 7519 ctl_datamove((union ctl_io *)ctsio); 7520 return (retval); 7521} 7522 7523int 7524ctl_persistent_reserve_in(struct ctl_scsiio *ctsio) 7525{ 7526 struct ctl_softc *softc = CTL_SOFTC(ctsio); 7527 struct ctl_lun *lun = CTL_LUN(ctsio); 7528 struct scsi_per_res_in *cdb; 7529 int alloc_len, total_len = 0; 7530 /* struct scsi_per_res_in_rsrv in_data; */ 7531 uint64_t key; 7532 7533 CTL_DEBUG_PRINT(("ctl_persistent_reserve_in\n")); 7534 7535 cdb = (struct scsi_per_res_in *)ctsio->cdb; 7536 7537 alloc_len = scsi_2btoul(cdb->length); 7538 7539retry: 7540 mtx_lock(&lun->lun_lock); 7541 switch (cdb->action) { 7542 case SPRI_RK: /* read keys */ 7543 total_len = sizeof(struct scsi_per_res_in_keys) + 7544 lun->pr_key_count * 7545 sizeof(struct scsi_per_res_key); 7546 break; 7547 case SPRI_RR: /* read reservation */ 7548 if (lun->flags & CTL_LUN_PR_RESERVED) 7549 total_len = sizeof(struct scsi_per_res_in_rsrv); 7550 else 7551 total_len = sizeof(struct scsi_per_res_in_header); 7552 break; 7553 case SPRI_RC: /* report capabilities */ 7554 total_len = sizeof(struct scsi_per_res_cap); 7555 break; 7556 case SPRI_RS: /* read full status */ 7557 total_len = sizeof(struct scsi_per_res_in_header) + 7558 (sizeof(struct scsi_per_res_in_full_desc) + 256) * 7559 lun->pr_key_count; 7560 break; 7561 default: 7562 panic("%s: Invalid PR type %#x", __func__, cdb->action); 7563 } 7564 mtx_unlock(&lun->lun_lock); 7565 7566 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7567 7568 if (total_len < alloc_len) { 7569 ctsio->residual = alloc_len - total_len; 7570 ctsio->kern_data_len = total_len; 7571 ctsio->kern_total_len = total_len; 7572 } else { 7573 ctsio->residual = 0; 7574 ctsio->kern_data_len = alloc_len; 7575 ctsio->kern_total_len = alloc_len; 7576 } 7577 7578 ctsio->kern_data_resid = 0; 7579 ctsio->kern_rel_offset = 0; 7580 ctsio->kern_sg_entries = 0; 7581 7582 mtx_lock(&lun->lun_lock); 7583 switch (cdb->action) { 7584 case SPRI_RK: { // read keys 7585 struct scsi_per_res_in_keys *res_keys; 7586 int i, key_count; 7587 7588 res_keys = (struct scsi_per_res_in_keys*)ctsio->kern_data_ptr; 7589 7590 /* 7591 * We had to drop the lock to allocate our buffer, which 7592 * leaves time for someone to come in with another 7593 * persistent reservation. (That is unlikely, though, 7594 * since this should be the only persistent reservation 7595 * command active right now.) 7596 */ 7597 if (total_len != (sizeof(struct scsi_per_res_in_keys) + 7598 (lun->pr_key_count * 7599 sizeof(struct scsi_per_res_key)))){ 7600 mtx_unlock(&lun->lun_lock); 7601 free(ctsio->kern_data_ptr, M_CTL); 7602 printf("%s: reservation length changed, retrying\n", 7603 __func__); 7604 goto retry; 7605 } 7606 7607 scsi_ulto4b(lun->pr_generation, res_keys->header.generation); 7608 7609 scsi_ulto4b(sizeof(struct scsi_per_res_key) * 7610 lun->pr_key_count, res_keys->header.length); 7611 7612 for (i = 0, key_count = 0; i < CTL_MAX_INITIATORS; i++) { 7613 if ((key = ctl_get_prkey(lun, i)) == 0) 7614 continue; 7615 7616 /* 7617 * We used lun->pr_key_count to calculate the 7618 * size to allocate. If it turns out the number of 7619 * initiators with the registered flag set is 7620 * larger than that (i.e. they haven't been kept in 7621 * sync), we've got a problem. 7622 */ 7623 if (key_count >= lun->pr_key_count) { 7624 key_count++; 7625 continue; 7626 } 7627 scsi_u64to8b(key, res_keys->keys[key_count].key); 7628 key_count++; 7629 } 7630 break; 7631 } 7632 case SPRI_RR: { // read reservation 7633 struct scsi_per_res_in_rsrv *res; 7634 int tmp_len, header_only; 7635 7636 res = (struct scsi_per_res_in_rsrv *)ctsio->kern_data_ptr; 7637 7638 scsi_ulto4b(lun->pr_generation, res->header.generation); 7639 7640 if (lun->flags & CTL_LUN_PR_RESERVED) 7641 { 7642 tmp_len = sizeof(struct scsi_per_res_in_rsrv); 7643 scsi_ulto4b(sizeof(struct scsi_per_res_in_rsrv_data), 7644 res->header.length); 7645 header_only = 0; 7646 } else { 7647 tmp_len = sizeof(struct scsi_per_res_in_header); 7648 scsi_ulto4b(0, res->header.length); 7649 header_only = 1; 7650 } 7651 7652 /* 7653 * We had to drop the lock to allocate our buffer, which 7654 * leaves time for someone to come in with another 7655 * persistent reservation. (That is unlikely, though, 7656 * since this should be the only persistent reservation 7657 * command active right now.) 7658 */ 7659 if (tmp_len != total_len) { 7660 mtx_unlock(&lun->lun_lock); 7661 free(ctsio->kern_data_ptr, M_CTL); 7662 printf("%s: reservation status changed, retrying\n", 7663 __func__); 7664 goto retry; 7665 } 7666 7667 /* 7668 * No reservation held, so we're done. 7669 */ 7670 if (header_only != 0) 7671 break; 7672 7673 /* 7674 * If the registration is an All Registrants type, the key 7675 * is 0, since it doesn't really matter. 7676 */ 7677 if (lun->pr_res_idx != CTL_PR_ALL_REGISTRANTS) { 7678 scsi_u64to8b(ctl_get_prkey(lun, lun->pr_res_idx), 7679 res->data.reservation); 7680 } 7681 res->data.scopetype = lun->pr_res_type; 7682 break; 7683 } 7684 case SPRI_RC: //report capabilities 7685 { 7686 struct scsi_per_res_cap *res_cap; 7687 uint16_t type_mask; 7688 7689 res_cap = (struct scsi_per_res_cap *)ctsio->kern_data_ptr; 7690 scsi_ulto2b(sizeof(*res_cap), res_cap->length); 7691 res_cap->flags1 = SPRI_CRH; 7692 res_cap->flags2 = SPRI_TMV | SPRI_ALLOW_5; 7693 type_mask = SPRI_TM_WR_EX_AR | 7694 SPRI_TM_EX_AC_RO | 7695 SPRI_TM_WR_EX_RO | 7696 SPRI_TM_EX_AC | 7697 SPRI_TM_WR_EX | 7698 SPRI_TM_EX_AC_AR; 7699 scsi_ulto2b(type_mask, res_cap->type_mask); 7700 break; 7701 } 7702 case SPRI_RS: { // read full status 7703 struct scsi_per_res_in_full *res_status; 7704 struct scsi_per_res_in_full_desc *res_desc; 7705 struct ctl_port *port; 7706 int i, len; 7707 7708 res_status = (struct scsi_per_res_in_full*)ctsio->kern_data_ptr; 7709 7710 /* 7711 * We had to drop the lock to allocate our buffer, which 7712 * leaves time for someone to come in with another 7713 * persistent reservation. (That is unlikely, though, 7714 * since this should be the only persistent reservation 7715 * command active right now.) 7716 */ 7717 if (total_len < (sizeof(struct scsi_per_res_in_header) + 7718 (sizeof(struct scsi_per_res_in_full_desc) + 256) * 7719 lun->pr_key_count)){ 7720 mtx_unlock(&lun->lun_lock); 7721 free(ctsio->kern_data_ptr, M_CTL); 7722 printf("%s: reservation length changed, retrying\n", 7723 __func__); 7724 goto retry; 7725 } 7726 7727 scsi_ulto4b(lun->pr_generation, res_status->header.generation); 7728 7729 res_desc = &res_status->desc[0]; 7730 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 7731 if ((key = ctl_get_prkey(lun, i)) == 0) 7732 continue; 7733 7734 scsi_u64to8b(key, res_desc->res_key.key); 7735 if ((lun->flags & CTL_LUN_PR_RESERVED) && 7736 (lun->pr_res_idx == i || 7737 lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS)) { 7738 res_desc->flags = SPRI_FULL_R_HOLDER; 7739 res_desc->scopetype = lun->pr_res_type; 7740 } 7741 scsi_ulto2b(i / CTL_MAX_INIT_PER_PORT, 7742 res_desc->rel_trgt_port_id); 7743 len = 0; 7744 port = softc->ctl_ports[i / CTL_MAX_INIT_PER_PORT]; 7745 if (port != NULL) 7746 len = ctl_create_iid(port, 7747 i % CTL_MAX_INIT_PER_PORT, 7748 res_desc->transport_id); 7749 scsi_ulto4b(len, res_desc->additional_length); 7750 res_desc = (struct scsi_per_res_in_full_desc *) 7751 &res_desc->transport_id[len]; 7752 } 7753 scsi_ulto4b((uint8_t *)res_desc - (uint8_t *)&res_status->desc[0], 7754 res_status->header.length); 7755 break; 7756 } 7757 default: 7758 panic("%s: Invalid PR type %#x", __func__, cdb->action); 7759 } 7760 mtx_unlock(&lun->lun_lock); 7761 7762 ctl_set_success(ctsio); 7763 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7764 ctsio->be_move_done = ctl_config_move_done; 7765 ctl_datamove((union ctl_io *)ctsio); 7766 return (CTL_RETVAL_COMPLETE); 7767} 7768 7769/* 7770 * Returns 0 if ctl_persistent_reserve_out() should continue, non-zero if 7771 * it should return. 7772 */ 7773static int 7774ctl_pro_preempt(struct ctl_softc *softc, struct ctl_lun *lun, uint64_t res_key, 7775 uint64_t sa_res_key, uint8_t type, uint32_t residx, 7776 struct ctl_scsiio *ctsio, struct scsi_per_res_out *cdb, 7777 struct scsi_per_res_out_parms* param) 7778{ 7779 union ctl_ha_msg persis_io; 7780 int i; 7781 7782 mtx_lock(&lun->lun_lock); 7783 if (sa_res_key == 0) { 7784 if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS) { 7785 /* validate scope and type */ 7786 if ((cdb->scope_type & SPR_SCOPE_MASK) != 7787 SPR_LU_SCOPE) { 7788 mtx_unlock(&lun->lun_lock); 7789 ctl_set_invalid_field(/*ctsio*/ ctsio, 7790 /*sks_valid*/ 1, 7791 /*command*/ 1, 7792 /*field*/ 2, 7793 /*bit_valid*/ 1, 7794 /*bit*/ 4); 7795 ctl_done((union ctl_io *)ctsio); 7796 return (1); 7797 } 7798 7799 if (type>8 || type==2 || type==4 || type==0) { 7800 mtx_unlock(&lun->lun_lock); 7801 ctl_set_invalid_field(/*ctsio*/ ctsio, 7802 /*sks_valid*/ 1, 7803 /*command*/ 1, 7804 /*field*/ 2, 7805 /*bit_valid*/ 1, 7806 /*bit*/ 0); 7807 ctl_done((union ctl_io *)ctsio); 7808 return (1); 7809 } 7810 7811 /* 7812 * Unregister everybody else and build UA for 7813 * them 7814 */ 7815 for(i = 0; i < CTL_MAX_INITIATORS; i++) { 7816 if (i == residx || ctl_get_prkey(lun, i) == 0) 7817 continue; 7818 7819 ctl_clr_prkey(lun, i); 7820 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 7821 } 7822 lun->pr_key_count = 1; 7823 lun->pr_res_type = type; 7824 if (lun->pr_res_type != SPR_TYPE_WR_EX_AR && 7825 lun->pr_res_type != SPR_TYPE_EX_AC_AR) 7826 lun->pr_res_idx = residx; 7827 lun->pr_generation++; 7828 mtx_unlock(&lun->lun_lock); 7829 7830 /* send msg to other side */ 7831 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 7832 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 7833 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 7834 persis_io.pr.pr_info.residx = lun->pr_res_idx; 7835 persis_io.pr.pr_info.res_type = type; 7836 memcpy(persis_io.pr.pr_info.sa_res_key, 7837 param->serv_act_res_key, 7838 sizeof(param->serv_act_res_key)); 7839 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 7840 sizeof(persis_io.pr), M_WAITOK); 7841 } else { 7842 /* not all registrants */ 7843 mtx_unlock(&lun->lun_lock); 7844 free(ctsio->kern_data_ptr, M_CTL); 7845 ctl_set_invalid_field(ctsio, 7846 /*sks_valid*/ 1, 7847 /*command*/ 0, 7848 /*field*/ 8, 7849 /*bit_valid*/ 0, 7850 /*bit*/ 0); 7851 ctl_done((union ctl_io *)ctsio); 7852 return (1); 7853 } 7854 } else if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS 7855 || !(lun->flags & CTL_LUN_PR_RESERVED)) { 7856 int found = 0; 7857 7858 if (res_key == sa_res_key) { 7859 /* special case */ 7860 /* 7861 * The spec implies this is not good but doesn't 7862 * say what to do. There are two choices either 7863 * generate a res conflict or check condition 7864 * with illegal field in parameter data. Since 7865 * that is what is done when the sa_res_key is 7866 * zero I'll take that approach since this has 7867 * to do with the sa_res_key. 7868 */ 7869 mtx_unlock(&lun->lun_lock); 7870 free(ctsio->kern_data_ptr, M_CTL); 7871 ctl_set_invalid_field(ctsio, 7872 /*sks_valid*/ 1, 7873 /*command*/ 0, 7874 /*field*/ 8, 7875 /*bit_valid*/ 0, 7876 /*bit*/ 0); 7877 ctl_done((union ctl_io *)ctsio); 7878 return (1); 7879 } 7880 7881 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 7882 if (ctl_get_prkey(lun, i) != sa_res_key) 7883 continue; 7884 7885 found = 1; 7886 ctl_clr_prkey(lun, i); 7887 lun->pr_key_count--; 7888 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 7889 } 7890 if (!found) { 7891 mtx_unlock(&lun->lun_lock); 7892 free(ctsio->kern_data_ptr, M_CTL); 7893 ctl_set_reservation_conflict(ctsio); 7894 ctl_done((union ctl_io *)ctsio); 7895 return (CTL_RETVAL_COMPLETE); 7896 } 7897 lun->pr_generation++; 7898 mtx_unlock(&lun->lun_lock); 7899 7900 /* send msg to other side */ 7901 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 7902 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 7903 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 7904 persis_io.pr.pr_info.residx = lun->pr_res_idx; 7905 persis_io.pr.pr_info.res_type = type; 7906 memcpy(persis_io.pr.pr_info.sa_res_key, 7907 param->serv_act_res_key, 7908 sizeof(param->serv_act_res_key)); 7909 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 7910 sizeof(persis_io.pr), M_WAITOK); 7911 } else { 7912 /* Reserved but not all registrants */ 7913 /* sa_res_key is res holder */ 7914 if (sa_res_key == ctl_get_prkey(lun, lun->pr_res_idx)) { 7915 /* validate scope and type */ 7916 if ((cdb->scope_type & SPR_SCOPE_MASK) != 7917 SPR_LU_SCOPE) { 7918 mtx_unlock(&lun->lun_lock); 7919 ctl_set_invalid_field(/*ctsio*/ ctsio, 7920 /*sks_valid*/ 1, 7921 /*command*/ 1, 7922 /*field*/ 2, 7923 /*bit_valid*/ 1, 7924 /*bit*/ 4); 7925 ctl_done((union ctl_io *)ctsio); 7926 return (1); 7927 } 7928 7929 if (type>8 || type==2 || type==4 || type==0) { 7930 mtx_unlock(&lun->lun_lock); 7931 ctl_set_invalid_field(/*ctsio*/ ctsio, 7932 /*sks_valid*/ 1, 7933 /*command*/ 1, 7934 /*field*/ 2, 7935 /*bit_valid*/ 1, 7936 /*bit*/ 0); 7937 ctl_done((union ctl_io *)ctsio); 7938 return (1); 7939 } 7940 7941 /* 7942 * Do the following: 7943 * if sa_res_key != res_key remove all 7944 * registrants w/sa_res_key and generate UA 7945 * for these registrants(Registrations 7946 * Preempted) if it wasn't an exclusive 7947 * reservation generate UA(Reservations 7948 * Preempted) for all other registered nexuses 7949 * if the type has changed. Establish the new 7950 * reservation and holder. If res_key and 7951 * sa_res_key are the same do the above 7952 * except don't unregister the res holder. 7953 */ 7954 7955 for(i = 0; i < CTL_MAX_INITIATORS; i++) { 7956 if (i == residx || ctl_get_prkey(lun, i) == 0) 7957 continue; 7958 7959 if (sa_res_key == ctl_get_prkey(lun, i)) { 7960 ctl_clr_prkey(lun, i); 7961 lun->pr_key_count--; 7962 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 7963 } else if (type != lun->pr_res_type && 7964 (lun->pr_res_type == SPR_TYPE_WR_EX_RO || 7965 lun->pr_res_type == SPR_TYPE_EX_AC_RO)) { 7966 ctl_est_ua(lun, i, CTL_UA_RES_RELEASE); 7967 } 7968 } 7969 lun->pr_res_type = type; 7970 if (lun->pr_res_type != SPR_TYPE_WR_EX_AR && 7971 lun->pr_res_type != SPR_TYPE_EX_AC_AR) 7972 lun->pr_res_idx = residx; 7973 else 7974 lun->pr_res_idx = CTL_PR_ALL_REGISTRANTS; 7975 lun->pr_generation++; 7976 mtx_unlock(&lun->lun_lock); 7977 7978 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 7979 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 7980 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 7981 persis_io.pr.pr_info.residx = lun->pr_res_idx; 7982 persis_io.pr.pr_info.res_type = type; 7983 memcpy(persis_io.pr.pr_info.sa_res_key, 7984 param->serv_act_res_key, 7985 sizeof(param->serv_act_res_key)); 7986 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 7987 sizeof(persis_io.pr), M_WAITOK); 7988 } else { 7989 /* 7990 * sa_res_key is not the res holder just 7991 * remove registrants 7992 */ 7993 int found=0; 7994 7995 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 7996 if (sa_res_key != ctl_get_prkey(lun, i)) 7997 continue; 7998 7999 found = 1; 8000 ctl_clr_prkey(lun, i); 8001 lun->pr_key_count--; 8002 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 8003 } 8004 8005 if (!found) { 8006 mtx_unlock(&lun->lun_lock); 8007 free(ctsio->kern_data_ptr, M_CTL); 8008 ctl_set_reservation_conflict(ctsio); 8009 ctl_done((union ctl_io *)ctsio); 8010 return (1); 8011 } 8012 lun->pr_generation++; 8013 mtx_unlock(&lun->lun_lock); 8014 8015 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8016 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8017 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 8018 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8019 persis_io.pr.pr_info.res_type = type; 8020 memcpy(persis_io.pr.pr_info.sa_res_key, 8021 param->serv_act_res_key, 8022 sizeof(param->serv_act_res_key)); 8023 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8024 sizeof(persis_io.pr), M_WAITOK); 8025 } 8026 } 8027 return (0); 8028} 8029 8030static void 8031ctl_pro_preempt_other(struct ctl_lun *lun, union ctl_ha_msg *msg) 8032{ 8033 uint64_t sa_res_key; 8034 int i; 8035 8036 sa_res_key = scsi_8btou64(msg->pr.pr_info.sa_res_key); 8037 8038 if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS 8039 || lun->pr_res_idx == CTL_PR_NO_RESERVATION 8040 || sa_res_key != ctl_get_prkey(lun, lun->pr_res_idx)) { 8041 if (sa_res_key == 0) { 8042 /* 8043 * Unregister everybody else and build UA for 8044 * them 8045 */ 8046 for(i = 0; i < CTL_MAX_INITIATORS; i++) { 8047 if (i == msg->pr.pr_info.residx || 8048 ctl_get_prkey(lun, i) == 0) 8049 continue; 8050 8051 ctl_clr_prkey(lun, i); 8052 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 8053 } 8054 8055 lun->pr_key_count = 1; 8056 lun->pr_res_type = msg->pr.pr_info.res_type; 8057 if (lun->pr_res_type != SPR_TYPE_WR_EX_AR && 8058 lun->pr_res_type != SPR_TYPE_EX_AC_AR) 8059 lun->pr_res_idx = msg->pr.pr_info.residx; 8060 } else { 8061 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 8062 if (sa_res_key == ctl_get_prkey(lun, i)) 8063 continue; 8064 8065 ctl_clr_prkey(lun, i); 8066 lun->pr_key_count--; 8067 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 8068 } 8069 } 8070 } else { 8071 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 8072 if (i == msg->pr.pr_info.residx || 8073 ctl_get_prkey(lun, i) == 0) 8074 continue; 8075 8076 if (sa_res_key == ctl_get_prkey(lun, i)) { 8077 ctl_clr_prkey(lun, i); 8078 lun->pr_key_count--; 8079 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 8080 } else if (msg->pr.pr_info.res_type != lun->pr_res_type 8081 && (lun->pr_res_type == SPR_TYPE_WR_EX_RO || 8082 lun->pr_res_type == SPR_TYPE_EX_AC_RO)) { 8083 ctl_est_ua(lun, i, CTL_UA_RES_RELEASE); 8084 } 8085 } 8086 lun->pr_res_type = msg->pr.pr_info.res_type; 8087 if (lun->pr_res_type != SPR_TYPE_WR_EX_AR && 8088 lun->pr_res_type != SPR_TYPE_EX_AC_AR) 8089 lun->pr_res_idx = msg->pr.pr_info.residx; 8090 else 8091 lun->pr_res_idx = CTL_PR_ALL_REGISTRANTS; 8092 } 8093 lun->pr_generation++; 8094 8095} 8096 8097 8098int 8099ctl_persistent_reserve_out(struct ctl_scsiio *ctsio) 8100{ 8101 struct ctl_softc *softc = CTL_SOFTC(ctsio); 8102 struct ctl_lun *lun = CTL_LUN(ctsio); 8103 int retval; 8104 u_int32_t param_len; 8105 struct scsi_per_res_out *cdb; 8106 struct scsi_per_res_out_parms* param; 8107 uint32_t residx; 8108 uint64_t res_key, sa_res_key, key; 8109 uint8_t type; 8110 union ctl_ha_msg persis_io; 8111 int i; 8112 8113 CTL_DEBUG_PRINT(("ctl_persistent_reserve_out\n")); 8114 8115 cdb = (struct scsi_per_res_out *)ctsio->cdb; 8116 retval = CTL_RETVAL_COMPLETE; 8117 8118 /* 8119 * We only support whole-LUN scope. The scope & type are ignored for 8120 * register, register and ignore existing key and clear. 8121 * We sometimes ignore scope and type on preempts too!! 8122 * Verify reservation type here as well. 8123 */ 8124 type = cdb->scope_type & SPR_TYPE_MASK; 8125 if ((cdb->action == SPRO_RESERVE) 8126 || (cdb->action == SPRO_RELEASE)) { 8127 if ((cdb->scope_type & SPR_SCOPE_MASK) != SPR_LU_SCOPE) { 8128 ctl_set_invalid_field(/*ctsio*/ ctsio, 8129 /*sks_valid*/ 1, 8130 /*command*/ 1, 8131 /*field*/ 2, 8132 /*bit_valid*/ 1, 8133 /*bit*/ 4); 8134 ctl_done((union ctl_io *)ctsio); 8135 return (CTL_RETVAL_COMPLETE); 8136 } 8137 8138 if (type>8 || type==2 || type==4 || type==0) { 8139 ctl_set_invalid_field(/*ctsio*/ ctsio, 8140 /*sks_valid*/ 1, 8141 /*command*/ 1, 8142 /*field*/ 2, 8143 /*bit_valid*/ 1, 8144 /*bit*/ 0); 8145 ctl_done((union ctl_io *)ctsio); 8146 return (CTL_RETVAL_COMPLETE); 8147 } 8148 } 8149 8150 param_len = scsi_4btoul(cdb->length); 8151 8152 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 8153 ctsio->kern_data_ptr = malloc(param_len, M_CTL, M_WAITOK); 8154 ctsio->kern_data_len = param_len; 8155 ctsio->kern_total_len = param_len; 8156 ctsio->kern_data_resid = 0; 8157 ctsio->kern_rel_offset = 0; 8158 ctsio->kern_sg_entries = 0; 8159 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 8160 ctsio->be_move_done = ctl_config_move_done; 8161 ctl_datamove((union ctl_io *)ctsio); 8162 8163 return (CTL_RETVAL_COMPLETE); 8164 } 8165 8166 param = (struct scsi_per_res_out_parms *)ctsio->kern_data_ptr; 8167 8168 residx = ctl_get_initindex(&ctsio->io_hdr.nexus); 8169 res_key = scsi_8btou64(param->res_key.key); 8170 sa_res_key = scsi_8btou64(param->serv_act_res_key); 8171 8172 /* 8173 * Validate the reservation key here except for SPRO_REG_IGNO 8174 * This must be done for all other service actions 8175 */ 8176 if ((cdb->action & SPRO_ACTION_MASK) != SPRO_REG_IGNO) { 8177 mtx_lock(&lun->lun_lock); 8178 if ((key = ctl_get_prkey(lun, residx)) != 0) { 8179 if (res_key != key) { 8180 /* 8181 * The current key passed in doesn't match 8182 * the one the initiator previously 8183 * registered. 8184 */ 8185 mtx_unlock(&lun->lun_lock); 8186 free(ctsio->kern_data_ptr, M_CTL); 8187 ctl_set_reservation_conflict(ctsio); 8188 ctl_done((union ctl_io *)ctsio); 8189 return (CTL_RETVAL_COMPLETE); 8190 } 8191 } else if ((cdb->action & SPRO_ACTION_MASK) != SPRO_REGISTER) { 8192 /* 8193 * We are not registered 8194 */ 8195 mtx_unlock(&lun->lun_lock); 8196 free(ctsio->kern_data_ptr, M_CTL); 8197 ctl_set_reservation_conflict(ctsio); 8198 ctl_done((union ctl_io *)ctsio); 8199 return (CTL_RETVAL_COMPLETE); 8200 } else if (res_key != 0) { 8201 /* 8202 * We are not registered and trying to register but 8203 * the register key isn't zero. 8204 */ 8205 mtx_unlock(&lun->lun_lock); 8206 free(ctsio->kern_data_ptr, M_CTL); 8207 ctl_set_reservation_conflict(ctsio); 8208 ctl_done((union ctl_io *)ctsio); 8209 return (CTL_RETVAL_COMPLETE); 8210 } 8211 mtx_unlock(&lun->lun_lock); 8212 } 8213 8214 switch (cdb->action & SPRO_ACTION_MASK) { 8215 case SPRO_REGISTER: 8216 case SPRO_REG_IGNO: { 8217 8218#if 0 8219 printf("Registration received\n"); 8220#endif 8221 8222 /* 8223 * We don't support any of these options, as we report in 8224 * the read capabilities request (see 8225 * ctl_persistent_reserve_in(), above). 8226 */ 8227 if ((param->flags & SPR_SPEC_I_PT) 8228 || (param->flags & SPR_ALL_TG_PT) 8229 || (param->flags & SPR_APTPL)) { 8230 int bit_ptr; 8231 8232 if (param->flags & SPR_APTPL) 8233 bit_ptr = 0; 8234 else if (param->flags & SPR_ALL_TG_PT) 8235 bit_ptr = 2; 8236 else /* SPR_SPEC_I_PT */ 8237 bit_ptr = 3; 8238 8239 free(ctsio->kern_data_ptr, M_CTL); 8240 ctl_set_invalid_field(ctsio, 8241 /*sks_valid*/ 1, 8242 /*command*/ 0, 8243 /*field*/ 20, 8244 /*bit_valid*/ 1, 8245 /*bit*/ bit_ptr); 8246 ctl_done((union ctl_io *)ctsio); 8247 return (CTL_RETVAL_COMPLETE); 8248 } 8249 8250 mtx_lock(&lun->lun_lock); 8251 8252 /* 8253 * The initiator wants to clear the 8254 * key/unregister. 8255 */ 8256 if (sa_res_key == 0) { 8257 if ((res_key == 0 8258 && (cdb->action & SPRO_ACTION_MASK) == SPRO_REGISTER) 8259 || ((cdb->action & SPRO_ACTION_MASK) == SPRO_REG_IGNO 8260 && ctl_get_prkey(lun, residx) == 0)) { 8261 mtx_unlock(&lun->lun_lock); 8262 goto done; 8263 } 8264 8265 ctl_clr_prkey(lun, residx); 8266 lun->pr_key_count--; 8267 8268 if (residx == lun->pr_res_idx) { 8269 lun->flags &= ~CTL_LUN_PR_RESERVED; 8270 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8271 8272 if ((lun->pr_res_type == SPR_TYPE_WR_EX_RO || 8273 lun->pr_res_type == SPR_TYPE_EX_AC_RO) && 8274 lun->pr_key_count) { 8275 /* 8276 * If the reservation is a registrants 8277 * only type we need to generate a UA 8278 * for other registered inits. The 8279 * sense code should be RESERVATIONS 8280 * RELEASED 8281 */ 8282 8283 for (i = softc->init_min; i < softc->init_max; i++){ 8284 if (ctl_get_prkey(lun, i) == 0) 8285 continue; 8286 ctl_est_ua(lun, i, 8287 CTL_UA_RES_RELEASE); 8288 } 8289 } 8290 lun->pr_res_type = 0; 8291 } else if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS) { 8292 if (lun->pr_key_count==0) { 8293 lun->flags &= ~CTL_LUN_PR_RESERVED; 8294 lun->pr_res_type = 0; 8295 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8296 } 8297 } 8298 lun->pr_generation++; 8299 mtx_unlock(&lun->lun_lock); 8300 8301 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8302 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8303 persis_io.pr.pr_info.action = CTL_PR_UNREG_KEY; 8304 persis_io.pr.pr_info.residx = residx; 8305 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8306 sizeof(persis_io.pr), M_WAITOK); 8307 } else /* sa_res_key != 0 */ { 8308 8309 /* 8310 * If we aren't registered currently then increment 8311 * the key count and set the registered flag. 8312 */ 8313 ctl_alloc_prkey(lun, residx); 8314 if (ctl_get_prkey(lun, residx) == 0) 8315 lun->pr_key_count++; 8316 ctl_set_prkey(lun, residx, sa_res_key); 8317 lun->pr_generation++; 8318 mtx_unlock(&lun->lun_lock); 8319 8320 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8321 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8322 persis_io.pr.pr_info.action = CTL_PR_REG_KEY; 8323 persis_io.pr.pr_info.residx = residx; 8324 memcpy(persis_io.pr.pr_info.sa_res_key, 8325 param->serv_act_res_key, 8326 sizeof(param->serv_act_res_key)); 8327 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8328 sizeof(persis_io.pr), M_WAITOK); 8329 } 8330 8331 break; 8332 } 8333 case SPRO_RESERVE: 8334#if 0 8335 printf("Reserve executed type %d\n", type); 8336#endif 8337 mtx_lock(&lun->lun_lock); 8338 if (lun->flags & CTL_LUN_PR_RESERVED) { 8339 /* 8340 * if this isn't the reservation holder and it's 8341 * not a "all registrants" type or if the type is 8342 * different then we have a conflict 8343 */ 8344 if ((lun->pr_res_idx != residx 8345 && lun->pr_res_idx != CTL_PR_ALL_REGISTRANTS) 8346 || lun->pr_res_type != type) { 8347 mtx_unlock(&lun->lun_lock); 8348 free(ctsio->kern_data_ptr, M_CTL); 8349 ctl_set_reservation_conflict(ctsio); 8350 ctl_done((union ctl_io *)ctsio); 8351 return (CTL_RETVAL_COMPLETE); 8352 } 8353 mtx_unlock(&lun->lun_lock); 8354 } else /* create a reservation */ { 8355 /* 8356 * If it's not an "all registrants" type record 8357 * reservation holder 8358 */ 8359 if (type != SPR_TYPE_WR_EX_AR 8360 && type != SPR_TYPE_EX_AC_AR) 8361 lun->pr_res_idx = residx; /* Res holder */ 8362 else 8363 lun->pr_res_idx = CTL_PR_ALL_REGISTRANTS; 8364 8365 lun->flags |= CTL_LUN_PR_RESERVED; 8366 lun->pr_res_type = type; 8367 8368 mtx_unlock(&lun->lun_lock); 8369 8370 /* send msg to other side */ 8371 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8372 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8373 persis_io.pr.pr_info.action = CTL_PR_RESERVE; 8374 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8375 persis_io.pr.pr_info.res_type = type; 8376 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8377 sizeof(persis_io.pr), M_WAITOK); 8378 } 8379 break; 8380 8381 case SPRO_RELEASE: 8382 mtx_lock(&lun->lun_lock); 8383 if ((lun->flags & CTL_LUN_PR_RESERVED) == 0) { 8384 /* No reservation exists return good status */ 8385 mtx_unlock(&lun->lun_lock); 8386 goto done; 8387 } 8388 /* 8389 * Is this nexus a reservation holder? 8390 */ 8391 if (lun->pr_res_idx != residx 8392 && lun->pr_res_idx != CTL_PR_ALL_REGISTRANTS) { 8393 /* 8394 * not a res holder return good status but 8395 * do nothing 8396 */ 8397 mtx_unlock(&lun->lun_lock); 8398 goto done; 8399 } 8400 8401 if (lun->pr_res_type != type) { 8402 mtx_unlock(&lun->lun_lock); 8403 free(ctsio->kern_data_ptr, M_CTL); 8404 ctl_set_illegal_pr_release(ctsio); 8405 ctl_done((union ctl_io *)ctsio); 8406 return (CTL_RETVAL_COMPLETE); 8407 } 8408 8409 /* okay to release */ 8410 lun->flags &= ~CTL_LUN_PR_RESERVED; 8411 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8412 lun->pr_res_type = 0; 8413 8414 /* 8415 * If this isn't an exclusive access reservation and NUAR 8416 * is not set, generate UA for all other registrants. 8417 */ 8418 if (type != SPR_TYPE_EX_AC && type != SPR_TYPE_WR_EX && 8419 (lun->MODE_CTRL.queue_flags & SCP_NUAR) == 0) { 8420 for (i = softc->init_min; i < softc->init_max; i++) { 8421 if (i == residx || ctl_get_prkey(lun, i) == 0) 8422 continue; 8423 ctl_est_ua(lun, i, CTL_UA_RES_RELEASE); 8424 } 8425 } 8426 mtx_unlock(&lun->lun_lock); 8427 8428 /* Send msg to other side */ 8429 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8430 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8431 persis_io.pr.pr_info.action = CTL_PR_RELEASE; 8432 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8433 sizeof(persis_io.pr), M_WAITOK); 8434 break; 8435 8436 case SPRO_CLEAR: 8437 /* send msg to other side */ 8438 8439 mtx_lock(&lun->lun_lock); 8440 lun->flags &= ~CTL_LUN_PR_RESERVED; 8441 lun->pr_res_type = 0; 8442 lun->pr_key_count = 0; 8443 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8444 8445 ctl_clr_prkey(lun, residx); 8446 for (i = 0; i < CTL_MAX_INITIATORS; i++) 8447 if (ctl_get_prkey(lun, i) != 0) { 8448 ctl_clr_prkey(lun, i); 8449 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 8450 } 8451 lun->pr_generation++; 8452 mtx_unlock(&lun->lun_lock); 8453 8454 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8455 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8456 persis_io.pr.pr_info.action = CTL_PR_CLEAR; 8457 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8458 sizeof(persis_io.pr), M_WAITOK); 8459 break; 8460 8461 case SPRO_PREEMPT: 8462 case SPRO_PRE_ABO: { 8463 int nretval; 8464 8465 nretval = ctl_pro_preempt(softc, lun, res_key, sa_res_key, type, 8466 residx, ctsio, cdb, param); 8467 if (nretval != 0) 8468 return (CTL_RETVAL_COMPLETE); 8469 break; 8470 } 8471 default: 8472 panic("%s: Invalid PR type %#x", __func__, cdb->action); 8473 } 8474 8475done: 8476 free(ctsio->kern_data_ptr, M_CTL); 8477 ctl_set_success(ctsio); 8478 ctl_done((union ctl_io *)ctsio); 8479 8480 return (retval); 8481} 8482 8483/* 8484 * This routine is for handling a message from the other SC pertaining to 8485 * persistent reserve out. All the error checking will have been done 8486 * so only perorming the action need be done here to keep the two 8487 * in sync. 8488 */ 8489static void 8490ctl_hndl_per_res_out_on_other_sc(union ctl_io *io) 8491{ 8492 struct ctl_softc *softc = CTL_SOFTC(io); 8493 union ctl_ha_msg *msg = (union ctl_ha_msg *)&io->presio.pr_msg; 8494 struct ctl_lun *lun; 8495 int i; 8496 uint32_t residx, targ_lun; 8497 8498 targ_lun = msg->hdr.nexus.targ_mapped_lun; 8499 mtx_lock(&softc->ctl_lock); 8500 if (targ_lun >= CTL_MAX_LUNS || 8501 (lun = softc->ctl_luns[targ_lun]) == NULL) { 8502 mtx_unlock(&softc->ctl_lock); 8503 return; 8504 } 8505 mtx_lock(&lun->lun_lock); 8506 mtx_unlock(&softc->ctl_lock); 8507 if (lun->flags & CTL_LUN_DISABLED) { 8508 mtx_unlock(&lun->lun_lock); 8509 return; 8510 } 8511 residx = ctl_get_initindex(&msg->hdr.nexus); 8512 switch(msg->pr.pr_info.action) { 8513 case CTL_PR_REG_KEY: 8514 ctl_alloc_prkey(lun, msg->pr.pr_info.residx); 8515 if (ctl_get_prkey(lun, msg->pr.pr_info.residx) == 0) 8516 lun->pr_key_count++; 8517 ctl_set_prkey(lun, msg->pr.pr_info.residx, 8518 scsi_8btou64(msg->pr.pr_info.sa_res_key)); 8519 lun->pr_generation++; 8520 break; 8521 8522 case CTL_PR_UNREG_KEY: 8523 ctl_clr_prkey(lun, msg->pr.pr_info.residx); 8524 lun->pr_key_count--; 8525 8526 /* XXX Need to see if the reservation has been released */ 8527 /* if so do we need to generate UA? */ 8528 if (msg->pr.pr_info.residx == lun->pr_res_idx) { 8529 lun->flags &= ~CTL_LUN_PR_RESERVED; 8530 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8531 8532 if ((lun->pr_res_type == SPR_TYPE_WR_EX_RO || 8533 lun->pr_res_type == SPR_TYPE_EX_AC_RO) && 8534 lun->pr_key_count) { 8535 /* 8536 * If the reservation is a registrants 8537 * only type we need to generate a UA 8538 * for other registered inits. The 8539 * sense code should be RESERVATIONS 8540 * RELEASED 8541 */ 8542 8543 for (i = softc->init_min; i < softc->init_max; i++) { 8544 if (ctl_get_prkey(lun, i) == 0) 8545 continue; 8546 8547 ctl_est_ua(lun, i, CTL_UA_RES_RELEASE); 8548 } 8549 } 8550 lun->pr_res_type = 0; 8551 } else if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS) { 8552 if (lun->pr_key_count==0) { 8553 lun->flags &= ~CTL_LUN_PR_RESERVED; 8554 lun->pr_res_type = 0; 8555 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8556 } 8557 } 8558 lun->pr_generation++; 8559 break; 8560 8561 case CTL_PR_RESERVE: 8562 lun->flags |= CTL_LUN_PR_RESERVED; 8563 lun->pr_res_type = msg->pr.pr_info.res_type; 8564 lun->pr_res_idx = msg->pr.pr_info.residx; 8565 8566 break; 8567 8568 case CTL_PR_RELEASE: 8569 /* 8570 * If this isn't an exclusive access reservation and NUAR 8571 * is not set, generate UA for all other registrants. 8572 */ 8573 if (lun->pr_res_type != SPR_TYPE_EX_AC && 8574 lun->pr_res_type != SPR_TYPE_WR_EX && 8575 (lun->MODE_CTRL.queue_flags & SCP_NUAR) == 0) { 8576 for (i = softc->init_min; i < softc->init_max; i++) 8577 if (i == residx || ctl_get_prkey(lun, i) == 0) 8578 continue; 8579 ctl_est_ua(lun, i, CTL_UA_RES_RELEASE); 8580 } 8581 8582 lun->flags &= ~CTL_LUN_PR_RESERVED; 8583 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8584 lun->pr_res_type = 0; 8585 break; 8586 8587 case CTL_PR_PREEMPT: 8588 ctl_pro_preempt_other(lun, msg); 8589 break; 8590 case CTL_PR_CLEAR: 8591 lun->flags &= ~CTL_LUN_PR_RESERVED; 8592 lun->pr_res_type = 0; 8593 lun->pr_key_count = 0; 8594 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8595 8596 for (i=0; i < CTL_MAX_INITIATORS; i++) { 8597 if (ctl_get_prkey(lun, i) == 0) 8598 continue; 8599 ctl_clr_prkey(lun, i); 8600 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 8601 } 8602 lun->pr_generation++; 8603 break; 8604 } 8605 8606 mtx_unlock(&lun->lun_lock); 8607} 8608 8609int 8610ctl_read_write(struct ctl_scsiio *ctsio) 8611{ 8612 struct ctl_lun *lun = CTL_LUN(ctsio); 8613 struct ctl_lba_len_flags *lbalen; 8614 uint64_t lba; 8615 uint32_t num_blocks; 8616 int flags, retval; 8617 int isread; 8618 8619 CTL_DEBUG_PRINT(("ctl_read_write: command: %#x\n", ctsio->cdb[0])); 8620 8621 flags = 0; 8622 isread = ctsio->cdb[0] == READ_6 || ctsio->cdb[0] == READ_10 8623 || ctsio->cdb[0] == READ_12 || ctsio->cdb[0] == READ_16; 8624 switch (ctsio->cdb[0]) { 8625 case READ_6: 8626 case WRITE_6: { 8627 struct scsi_rw_6 *cdb; 8628 8629 cdb = (struct scsi_rw_6 *)ctsio->cdb; 8630 8631 lba = scsi_3btoul(cdb->addr); 8632 /* only 5 bits are valid in the most significant address byte */ 8633 lba &= 0x1fffff; 8634 num_blocks = cdb->length; 8635 /* 8636 * This is correct according to SBC-2. 8637 */ 8638 if (num_blocks == 0) 8639 num_blocks = 256; 8640 break; 8641 } 8642 case READ_10: 8643 case WRITE_10: { 8644 struct scsi_rw_10 *cdb; 8645 8646 cdb = (struct scsi_rw_10 *)ctsio->cdb; 8647 if (cdb->byte2 & SRW10_FUA) 8648 flags |= CTL_LLF_FUA; 8649 if (cdb->byte2 & SRW10_DPO) 8650 flags |= CTL_LLF_DPO; 8651 lba = scsi_4btoul(cdb->addr); 8652 num_blocks = scsi_2btoul(cdb->length); 8653 break; 8654 } 8655 case WRITE_VERIFY_10: { 8656 struct scsi_write_verify_10 *cdb; 8657 8658 cdb = (struct scsi_write_verify_10 *)ctsio->cdb; 8659 flags |= CTL_LLF_FUA; 8660 if (cdb->byte2 & SWV_DPO) 8661 flags |= CTL_LLF_DPO; 8662 lba = scsi_4btoul(cdb->addr); 8663 num_blocks = scsi_2btoul(cdb->length); 8664 break; 8665 } 8666 case READ_12: 8667 case WRITE_12: { 8668 struct scsi_rw_12 *cdb; 8669 8670 cdb = (struct scsi_rw_12 *)ctsio->cdb; 8671 if (cdb->byte2 & SRW12_FUA) 8672 flags |= CTL_LLF_FUA; 8673 if (cdb->byte2 & SRW12_DPO) 8674 flags |= CTL_LLF_DPO; 8675 lba = scsi_4btoul(cdb->addr); 8676 num_blocks = scsi_4btoul(cdb->length); 8677 break; 8678 } 8679 case WRITE_VERIFY_12: { 8680 struct scsi_write_verify_12 *cdb; 8681 8682 cdb = (struct scsi_write_verify_12 *)ctsio->cdb; 8683 flags |= CTL_LLF_FUA; 8684 if (cdb->byte2 & SWV_DPO) 8685 flags |= CTL_LLF_DPO; 8686 lba = scsi_4btoul(cdb->addr); 8687 num_blocks = scsi_4btoul(cdb->length); 8688 break; 8689 } 8690 case READ_16: 8691 case WRITE_16: { 8692 struct scsi_rw_16 *cdb; 8693 8694 cdb = (struct scsi_rw_16 *)ctsio->cdb; 8695 if (cdb->byte2 & SRW12_FUA) 8696 flags |= CTL_LLF_FUA; 8697 if (cdb->byte2 & SRW12_DPO) 8698 flags |= CTL_LLF_DPO; 8699 lba = scsi_8btou64(cdb->addr); 8700 num_blocks = scsi_4btoul(cdb->length); 8701 break; 8702 } 8703 case WRITE_ATOMIC_16: { 8704 struct scsi_write_atomic_16 *cdb; 8705 8706 if (lun->be_lun->atomicblock == 0) { 8707 ctl_set_invalid_opcode(ctsio); 8708 ctl_done((union ctl_io *)ctsio); 8709 return (CTL_RETVAL_COMPLETE); 8710 } 8711 8712 cdb = (struct scsi_write_atomic_16 *)ctsio->cdb; 8713 if (cdb->byte2 & SRW12_FUA) 8714 flags |= CTL_LLF_FUA; 8715 if (cdb->byte2 & SRW12_DPO) 8716 flags |= CTL_LLF_DPO; 8717 lba = scsi_8btou64(cdb->addr); 8718 num_blocks = scsi_2btoul(cdb->length); 8719 if (num_blocks > lun->be_lun->atomicblock) { 8720 ctl_set_invalid_field(ctsio, /*sks_valid*/ 1, 8721 /*command*/ 1, /*field*/ 12, /*bit_valid*/ 0, 8722 /*bit*/ 0); 8723 ctl_done((union ctl_io *)ctsio); 8724 return (CTL_RETVAL_COMPLETE); 8725 } 8726 break; 8727 } 8728 case WRITE_VERIFY_16: { 8729 struct scsi_write_verify_16 *cdb; 8730 8731 cdb = (struct scsi_write_verify_16 *)ctsio->cdb; 8732 flags |= CTL_LLF_FUA; 8733 if (cdb->byte2 & SWV_DPO) 8734 flags |= CTL_LLF_DPO; 8735 lba = scsi_8btou64(cdb->addr); 8736 num_blocks = scsi_4btoul(cdb->length); 8737 break; 8738 } 8739 default: 8740 /* 8741 * We got a command we don't support. This shouldn't 8742 * happen, commands should be filtered out above us. 8743 */ 8744 ctl_set_invalid_opcode(ctsio); 8745 ctl_done((union ctl_io *)ctsio); 8746 8747 return (CTL_RETVAL_COMPLETE); 8748 break; /* NOTREACHED */ 8749 } 8750 8751 /* 8752 * The first check is to make sure we're in bounds, the second 8753 * check is to catch wrap-around problems. If the lba + num blocks 8754 * is less than the lba, then we've wrapped around and the block 8755 * range is invalid anyway. 8756 */ 8757 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 8758 || ((lba + num_blocks) < lba)) { 8759 ctl_set_lba_out_of_range(ctsio, 8760 MAX(lba, lun->be_lun->maxlba + 1)); 8761 ctl_done((union ctl_io *)ctsio); 8762 return (CTL_RETVAL_COMPLETE); 8763 } 8764 8765 /* 8766 * According to SBC-3, a transfer length of 0 is not an error. 8767 * Note that this cannot happen with WRITE(6) or READ(6), since 0 8768 * translates to 256 blocks for those commands. 8769 */ 8770 if (num_blocks == 0) { 8771 ctl_set_success(ctsio); 8772 ctl_done((union ctl_io *)ctsio); 8773 return (CTL_RETVAL_COMPLETE); 8774 } 8775 8776 /* Set FUA and/or DPO if caches are disabled. */ 8777 if (isread) { 8778 if ((lun->MODE_CACHING.flags1 & SCP_RCD) != 0) 8779 flags |= CTL_LLF_FUA | CTL_LLF_DPO; 8780 } else { 8781 if ((lun->MODE_CACHING.flags1 & SCP_WCE) == 0) 8782 flags |= CTL_LLF_FUA; 8783 } 8784 8785 lbalen = (struct ctl_lba_len_flags *) 8786 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 8787 lbalen->lba = lba; 8788 lbalen->len = num_blocks; 8789 lbalen->flags = (isread ? CTL_LLF_READ : CTL_LLF_WRITE) | flags; 8790 8791 ctsio->kern_total_len = num_blocks * lun->be_lun->blocksize; 8792 ctsio->kern_rel_offset = 0; 8793 8794 CTL_DEBUG_PRINT(("ctl_read_write: calling data_submit()\n")); 8795 8796 retval = lun->backend->data_submit((union ctl_io *)ctsio); 8797 return (retval); 8798} 8799 8800static int 8801ctl_cnw_cont(union ctl_io *io) 8802{ 8803 struct ctl_lun *lun = CTL_LUN(io); 8804 struct ctl_scsiio *ctsio; 8805 struct ctl_lba_len_flags *lbalen; 8806 int retval; 8807 8808 ctsio = &io->scsiio; 8809 ctsio->io_hdr.status = CTL_STATUS_NONE; 8810 ctsio->io_hdr.flags &= ~CTL_FLAG_IO_CONT; 8811 lbalen = (struct ctl_lba_len_flags *) 8812 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 8813 lbalen->flags &= ~CTL_LLF_COMPARE; 8814 lbalen->flags |= CTL_LLF_WRITE; 8815 8816 CTL_DEBUG_PRINT(("ctl_cnw_cont: calling data_submit()\n")); 8817 retval = lun->backend->data_submit((union ctl_io *)ctsio); 8818 return (retval); 8819} 8820 8821int 8822ctl_cnw(struct ctl_scsiio *ctsio) 8823{ 8824 struct ctl_lun *lun = CTL_LUN(ctsio); 8825 struct ctl_lba_len_flags *lbalen; 8826 uint64_t lba; 8827 uint32_t num_blocks; 8828 int flags, retval; 8829 8830 CTL_DEBUG_PRINT(("ctl_cnw: command: %#x\n", ctsio->cdb[0])); 8831 8832 flags = 0; 8833 switch (ctsio->cdb[0]) { 8834 case COMPARE_AND_WRITE: { 8835 struct scsi_compare_and_write *cdb; 8836 8837 cdb = (struct scsi_compare_and_write *)ctsio->cdb; 8838 if (cdb->byte2 & SRW10_FUA) 8839 flags |= CTL_LLF_FUA; 8840 if (cdb->byte2 & SRW10_DPO) 8841 flags |= CTL_LLF_DPO; 8842 lba = scsi_8btou64(cdb->addr); 8843 num_blocks = cdb->length; 8844 break; 8845 } 8846 default: 8847 /* 8848 * We got a command we don't support. This shouldn't 8849 * happen, commands should be filtered out above us. 8850 */ 8851 ctl_set_invalid_opcode(ctsio); 8852 ctl_done((union ctl_io *)ctsio); 8853 8854 return (CTL_RETVAL_COMPLETE); 8855 break; /* NOTREACHED */ 8856 } 8857 8858 /* 8859 * The first check is to make sure we're in bounds, the second 8860 * check is to catch wrap-around problems. If the lba + num blocks 8861 * is less than the lba, then we've wrapped around and the block 8862 * range is invalid anyway. 8863 */ 8864 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 8865 || ((lba + num_blocks) < lba)) { 8866 ctl_set_lba_out_of_range(ctsio, 8867 MAX(lba, lun->be_lun->maxlba + 1)); 8868 ctl_done((union ctl_io *)ctsio); 8869 return (CTL_RETVAL_COMPLETE); 8870 } 8871 8872 /* 8873 * According to SBC-3, a transfer length of 0 is not an error. 8874 */ 8875 if (num_blocks == 0) { 8876 ctl_set_success(ctsio); 8877 ctl_done((union ctl_io *)ctsio); 8878 return (CTL_RETVAL_COMPLETE); 8879 } 8880 8881 /* Set FUA if write cache is disabled. */ 8882 if ((lun->MODE_CACHING.flags1 & SCP_WCE) == 0) 8883 flags |= CTL_LLF_FUA; 8884 8885 ctsio->kern_total_len = 2 * num_blocks * lun->be_lun->blocksize; 8886 ctsio->kern_rel_offset = 0; 8887 8888 /* 8889 * Set the IO_CONT flag, so that if this I/O gets passed to 8890 * ctl_data_submit_done(), it'll get passed back to 8891 * ctl_ctl_cnw_cont() for further processing. 8892 */ 8893 ctsio->io_hdr.flags |= CTL_FLAG_IO_CONT; 8894 ctsio->io_cont = ctl_cnw_cont; 8895 8896 lbalen = (struct ctl_lba_len_flags *) 8897 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 8898 lbalen->lba = lba; 8899 lbalen->len = num_blocks; 8900 lbalen->flags = CTL_LLF_COMPARE | flags; 8901 8902 CTL_DEBUG_PRINT(("ctl_cnw: calling data_submit()\n")); 8903 retval = lun->backend->data_submit((union ctl_io *)ctsio); 8904 return (retval); 8905} 8906 8907int 8908ctl_verify(struct ctl_scsiio *ctsio) 8909{ 8910 struct ctl_lun *lun = CTL_LUN(ctsio); 8911 struct ctl_lba_len_flags *lbalen; 8912 uint64_t lba; 8913 uint32_t num_blocks; 8914 int bytchk, flags; 8915 int retval; 8916 8917 CTL_DEBUG_PRINT(("ctl_verify: command: %#x\n", ctsio->cdb[0])); 8918 8919 bytchk = 0; 8920 flags = CTL_LLF_FUA; 8921 switch (ctsio->cdb[0]) { 8922 case VERIFY_10: { 8923 struct scsi_verify_10 *cdb; 8924 8925 cdb = (struct scsi_verify_10 *)ctsio->cdb; 8926 if (cdb->byte2 & SVFY_BYTCHK) 8927 bytchk = 1; 8928 if (cdb->byte2 & SVFY_DPO) 8929 flags |= CTL_LLF_DPO; 8930 lba = scsi_4btoul(cdb->addr); 8931 num_blocks = scsi_2btoul(cdb->length); 8932 break; 8933 } 8934 case VERIFY_12: { 8935 struct scsi_verify_12 *cdb; 8936 8937 cdb = (struct scsi_verify_12 *)ctsio->cdb; 8938 if (cdb->byte2 & SVFY_BYTCHK) 8939 bytchk = 1; 8940 if (cdb->byte2 & SVFY_DPO) 8941 flags |= CTL_LLF_DPO; 8942 lba = scsi_4btoul(cdb->addr); 8943 num_blocks = scsi_4btoul(cdb->length); 8944 break; 8945 } 8946 case VERIFY_16: { 8947 struct scsi_rw_16 *cdb; 8948 8949 cdb = (struct scsi_rw_16 *)ctsio->cdb; 8950 if (cdb->byte2 & SVFY_BYTCHK) 8951 bytchk = 1; 8952 if (cdb->byte2 & SVFY_DPO) 8953 flags |= CTL_LLF_DPO; 8954 lba = scsi_8btou64(cdb->addr); 8955 num_blocks = scsi_4btoul(cdb->length); 8956 break; 8957 } 8958 default: 8959 /* 8960 * We got a command we don't support. This shouldn't 8961 * happen, commands should be filtered out above us. 8962 */ 8963 ctl_set_invalid_opcode(ctsio); 8964 ctl_done((union ctl_io *)ctsio); 8965 return (CTL_RETVAL_COMPLETE); 8966 } 8967 8968 /* 8969 * The first check is to make sure we're in bounds, the second 8970 * check is to catch wrap-around problems. If the lba + num blocks 8971 * is less than the lba, then we've wrapped around and the block 8972 * range is invalid anyway. 8973 */ 8974 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 8975 || ((lba + num_blocks) < lba)) { 8976 ctl_set_lba_out_of_range(ctsio, 8977 MAX(lba, lun->be_lun->maxlba + 1)); 8978 ctl_done((union ctl_io *)ctsio); 8979 return (CTL_RETVAL_COMPLETE); 8980 } 8981 8982 /* 8983 * According to SBC-3, a transfer length of 0 is not an error. 8984 */ 8985 if (num_blocks == 0) { 8986 ctl_set_success(ctsio); 8987 ctl_done((union ctl_io *)ctsio); 8988 return (CTL_RETVAL_COMPLETE); 8989 } 8990 8991 lbalen = (struct ctl_lba_len_flags *) 8992 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 8993 lbalen->lba = lba; 8994 lbalen->len = num_blocks; 8995 if (bytchk) { 8996 lbalen->flags = CTL_LLF_COMPARE | flags; 8997 ctsio->kern_total_len = num_blocks * lun->be_lun->blocksize; 8998 } else { 8999 lbalen->flags = CTL_LLF_VERIFY | flags; 9000 ctsio->kern_total_len = 0; 9001 } 9002 ctsio->kern_rel_offset = 0; 9003 9004 CTL_DEBUG_PRINT(("ctl_verify: calling data_submit()\n")); 9005 retval = lun->backend->data_submit((union ctl_io *)ctsio); 9006 return (retval); 9007} 9008 9009int 9010ctl_report_luns(struct ctl_scsiio *ctsio) 9011{ 9012 struct ctl_softc *softc = CTL_SOFTC(ctsio); 9013 struct ctl_port *port = CTL_PORT(ctsio); 9014 struct ctl_lun *lun, *request_lun = CTL_LUN(ctsio); 9015 struct scsi_report_luns *cdb; 9016 struct scsi_report_luns_data *lun_data; 9017 int num_filled, num_luns, num_port_luns, retval; 9018 uint32_t alloc_len, lun_datalen; 9019 uint32_t initidx, targ_lun_id, lun_id; 9020 9021 retval = CTL_RETVAL_COMPLETE; 9022 cdb = (struct scsi_report_luns *)ctsio->cdb; 9023 9024 CTL_DEBUG_PRINT(("ctl_report_luns\n")); 9025 9026 num_luns = 0; 9027 num_port_luns = port->lun_map ? port->lun_map_size : CTL_MAX_LUNS; 9028 mtx_lock(&softc->ctl_lock); 9029 for (targ_lun_id = 0; targ_lun_id < num_port_luns; targ_lun_id++) { 9030 if (ctl_lun_map_from_port(port, targ_lun_id) != UINT32_MAX) 9031 num_luns++; 9032 } 9033 mtx_unlock(&softc->ctl_lock); 9034 9035 switch (cdb->select_report) { 9036 case RPL_REPORT_DEFAULT: 9037 case RPL_REPORT_ALL: 9038 case RPL_REPORT_NONSUBSID: 9039 break; 9040 case RPL_REPORT_WELLKNOWN: 9041 case RPL_REPORT_ADMIN: 9042 case RPL_REPORT_CONGLOM: 9043 num_luns = 0; 9044 break; 9045 default: 9046 ctl_set_invalid_field(ctsio, 9047 /*sks_valid*/ 1, 9048 /*command*/ 1, 9049 /*field*/ 2, 9050 /*bit_valid*/ 0, 9051 /*bit*/ 0); 9052 ctl_done((union ctl_io *)ctsio); 9053 return (retval); 9054 break; /* NOTREACHED */ 9055 } 9056 9057 alloc_len = scsi_4btoul(cdb->length); 9058 /* 9059 * The initiator has to allocate at least 16 bytes for this request, 9060 * so he can at least get the header and the first LUN. Otherwise 9061 * we reject the request (per SPC-3 rev 14, section 6.21). 9062 */ 9063 if (alloc_len < (sizeof(struct scsi_report_luns_data) + 9064 sizeof(struct scsi_report_luns_lundata))) { 9065 ctl_set_invalid_field(ctsio, 9066 /*sks_valid*/ 1, 9067 /*command*/ 1, 9068 /*field*/ 6, 9069 /*bit_valid*/ 0, 9070 /*bit*/ 0); 9071 ctl_done((union ctl_io *)ctsio); 9072 return (retval); 9073 } 9074 9075 lun_datalen = sizeof(*lun_data) + 9076 (num_luns * sizeof(struct scsi_report_luns_lundata)); 9077 9078 ctsio->kern_data_ptr = malloc(lun_datalen, M_CTL, M_WAITOK | M_ZERO); 9079 lun_data = (struct scsi_report_luns_data *)ctsio->kern_data_ptr; 9080 ctsio->kern_sg_entries = 0; 9081 9082 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 9083 9084 mtx_lock(&softc->ctl_lock); 9085 for (targ_lun_id = 0, num_filled = 0; 9086 targ_lun_id < num_port_luns && num_filled < num_luns; 9087 targ_lun_id++) { 9088 lun_id = ctl_lun_map_from_port(port, targ_lun_id); 9089 if (lun_id == UINT32_MAX) 9090 continue; 9091 lun = softc->ctl_luns[lun_id]; 9092 if (lun == NULL) 9093 continue; 9094 9095 be64enc(lun_data->luns[num_filled++].lundata, 9096 ctl_encode_lun(targ_lun_id)); 9097 9098 /* 9099 * According to SPC-3, rev 14 section 6.21: 9100 * 9101 * "The execution of a REPORT LUNS command to any valid and 9102 * installed logical unit shall clear the REPORTED LUNS DATA 9103 * HAS CHANGED unit attention condition for all logical 9104 * units of that target with respect to the requesting 9105 * initiator. A valid and installed logical unit is one 9106 * having a PERIPHERAL QUALIFIER of 000b in the standard 9107 * INQUIRY data (see 6.4.2)." 9108 * 9109 * If request_lun is NULL, the LUN this report luns command 9110 * was issued to is either disabled or doesn't exist. In that 9111 * case, we shouldn't clear any pending lun change unit 9112 * attention. 9113 */ 9114 if (request_lun != NULL) { 9115 mtx_lock(&lun->lun_lock); 9116 ctl_clr_ua(lun, initidx, CTL_UA_LUN_CHANGE); 9117 mtx_unlock(&lun->lun_lock); 9118 } 9119 } 9120 mtx_unlock(&softc->ctl_lock); 9121 9122 /* 9123 * It's quite possible that we've returned fewer LUNs than we allocated 9124 * space for. Trim it. 9125 */ 9126 lun_datalen = sizeof(*lun_data) + 9127 (num_filled * sizeof(struct scsi_report_luns_lundata)); 9128 9129 if (lun_datalen < alloc_len) { 9130 ctsio->residual = alloc_len - lun_datalen; 9131 ctsio->kern_data_len = lun_datalen; 9132 ctsio->kern_total_len = lun_datalen; 9133 } else { 9134 ctsio->residual = 0; 9135 ctsio->kern_data_len = alloc_len; 9136 ctsio->kern_total_len = alloc_len; 9137 } 9138 ctsio->kern_data_resid = 0; 9139 ctsio->kern_rel_offset = 0; 9140 ctsio->kern_sg_entries = 0; 9141 9142 /* 9143 * We set this to the actual data length, regardless of how much 9144 * space we actually have to return results. If the user looks at 9145 * this value, he'll know whether or not he allocated enough space 9146 * and reissue the command if necessary. We don't support well 9147 * known logical units, so if the user asks for that, return none. 9148 */ 9149 scsi_ulto4b(lun_datalen - 8, lun_data->length); 9150 9151 /* 9152 * We can only return SCSI_STATUS_CHECK_COND when we can't satisfy 9153 * this request. 9154 */ 9155 ctl_set_success(ctsio); 9156 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9157 ctsio->be_move_done = ctl_config_move_done; 9158 ctl_datamove((union ctl_io *)ctsio); 9159 return (retval); 9160} 9161 9162int 9163ctl_request_sense(struct ctl_scsiio *ctsio) 9164{ 9165 struct ctl_softc *softc = CTL_SOFTC(ctsio); 9166 struct ctl_lun *lun = CTL_LUN(ctsio); 9167 struct scsi_request_sense *cdb; 9168 struct scsi_sense_data *sense_ptr; 9169 uint32_t initidx; 9170 int have_error; 9171 u_int sense_len = SSD_FULL_SIZE; 9172 scsi_sense_data_type sense_format; 9173 ctl_ua_type ua_type; 9174 uint8_t asc = 0, ascq = 0; 9175 9176 cdb = (struct scsi_request_sense *)ctsio->cdb; 9177 9178 CTL_DEBUG_PRINT(("ctl_request_sense\n")); 9179 9180 /* 9181 * Determine which sense format the user wants. 9182 */ 9183 if (cdb->byte2 & SRS_DESC) 9184 sense_format = SSD_TYPE_DESC; 9185 else 9186 sense_format = SSD_TYPE_FIXED; 9187 9188 ctsio->kern_data_ptr = malloc(sizeof(*sense_ptr), M_CTL, M_WAITOK); 9189 sense_ptr = (struct scsi_sense_data *)ctsio->kern_data_ptr; 9190 ctsio->kern_sg_entries = 0; 9191 9192 /* 9193 * struct scsi_sense_data, which is currently set to 256 bytes, is 9194 * larger than the largest allowed value for the length field in the 9195 * REQUEST SENSE CDB, which is 252 bytes as of SPC-4. 9196 */ 9197 ctsio->residual = 0; 9198 ctsio->kern_data_len = cdb->length; 9199 ctsio->kern_total_len = cdb->length; 9200 9201 ctsio->kern_data_resid = 0; 9202 ctsio->kern_rel_offset = 0; 9203 ctsio->kern_sg_entries = 0; 9204 9205 /* 9206 * If we don't have a LUN, we don't have any pending sense. 9207 */ 9208 if (lun == NULL || 9209 ((lun->flags & CTL_LUN_PRIMARY_SC) == 0 && 9210 softc->ha_link < CTL_HA_LINK_UNKNOWN)) { 9211 /* "Logical unit not supported" */ 9212 ctl_set_sense_data(sense_ptr, &sense_len, NULL, sense_format, 9213 /*current_error*/ 1, 9214 /*sense_key*/ SSD_KEY_ILLEGAL_REQUEST, 9215 /*asc*/ 0x25, 9216 /*ascq*/ 0x00, 9217 SSD_ELEM_NONE); 9218 goto send; 9219 } 9220 9221 have_error = 0; 9222 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 9223 /* 9224 * Check for pending sense, and then for pending unit attentions. 9225 * Pending sense gets returned first, then pending unit attentions. 9226 */ 9227 mtx_lock(&lun->lun_lock); 9228#ifdef CTL_WITH_CA 9229 if (ctl_is_set(lun->have_ca, initidx)) { 9230 scsi_sense_data_type stored_format; 9231 9232 /* 9233 * Check to see which sense format was used for the stored 9234 * sense data. 9235 */ 9236 stored_format = scsi_sense_type(&lun->pending_sense[initidx]); 9237 9238 /* 9239 * If the user requested a different sense format than the 9240 * one we stored, then we need to convert it to the other 9241 * format. If we're going from descriptor to fixed format 9242 * sense data, we may lose things in translation, depending 9243 * on what options were used. 9244 * 9245 * If the stored format is SSD_TYPE_NONE (i.e. invalid), 9246 * for some reason we'll just copy it out as-is. 9247 */ 9248 if ((stored_format == SSD_TYPE_FIXED) 9249 && (sense_format == SSD_TYPE_DESC)) 9250 ctl_sense_to_desc((struct scsi_sense_data_fixed *) 9251 &lun->pending_sense[initidx], 9252 (struct scsi_sense_data_desc *)sense_ptr); 9253 else if ((stored_format == SSD_TYPE_DESC) 9254 && (sense_format == SSD_TYPE_FIXED)) 9255 ctl_sense_to_fixed((struct scsi_sense_data_desc *) 9256 &lun->pending_sense[initidx], 9257 (struct scsi_sense_data_fixed *)sense_ptr); 9258 else 9259 memcpy(sense_ptr, &lun->pending_sense[initidx], 9260 MIN(sizeof(*sense_ptr), 9261 sizeof(lun->pending_sense[initidx]))); 9262 9263 ctl_clear_mask(lun->have_ca, initidx); 9264 have_error = 1; 9265 } else 9266#endif 9267 if (have_error == 0) { 9268 ua_type = ctl_build_ua(lun, initidx, sense_ptr, &sense_len, 9269 sense_format); 9270 if (ua_type != CTL_UA_NONE) 9271 have_error = 1; 9272 } 9273 if (have_error == 0) { 9274 /* 9275 * Report informational exception if have one and allowed. 9276 */ 9277 if (lun->MODE_IE.mrie != SIEP_MRIE_NO) { 9278 asc = lun->ie_asc; 9279 ascq = lun->ie_ascq; 9280 } 9281 ctl_set_sense_data(sense_ptr, &sense_len, lun, sense_format, 9282 /*current_error*/ 1, 9283 /*sense_key*/ SSD_KEY_NO_SENSE, 9284 /*asc*/ asc, 9285 /*ascq*/ ascq, 9286 SSD_ELEM_NONE); 9287 } 9288 mtx_unlock(&lun->lun_lock); 9289 9290send: 9291 /* 9292 * We report the SCSI status as OK, since the status of the command 9293 * itself is OK. We're reporting sense as parameter data. 9294 */ 9295 ctl_set_success(ctsio); 9296 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9297 ctsio->be_move_done = ctl_config_move_done; 9298 ctl_datamove((union ctl_io *)ctsio); 9299 return (CTL_RETVAL_COMPLETE); 9300} 9301 9302int 9303ctl_tur(struct ctl_scsiio *ctsio) 9304{ 9305 9306 CTL_DEBUG_PRINT(("ctl_tur\n")); 9307 9308 ctl_set_success(ctsio); 9309 ctl_done((union ctl_io *)ctsio); 9310 9311 return (CTL_RETVAL_COMPLETE); 9312} 9313 9314/* 9315 * SCSI VPD page 0x00, the Supported VPD Pages page. 9316 */ 9317static int 9318ctl_inquiry_evpd_supported(struct ctl_scsiio *ctsio, int alloc_len) 9319{ 9320 struct ctl_lun *lun = CTL_LUN(ctsio); 9321 struct scsi_vpd_supported_pages *pages; 9322 int sup_page_size; 9323 int p; 9324 9325 sup_page_size = sizeof(struct scsi_vpd_supported_pages) * 9326 SCSI_EVPD_NUM_SUPPORTED_PAGES; 9327 ctsio->kern_data_ptr = malloc(sup_page_size, M_CTL, M_WAITOK | M_ZERO); 9328 pages = (struct scsi_vpd_supported_pages *)ctsio->kern_data_ptr; 9329 ctsio->kern_sg_entries = 0; 9330 9331 if (sup_page_size < alloc_len) { 9332 ctsio->residual = alloc_len - sup_page_size; 9333 ctsio->kern_data_len = sup_page_size; 9334 ctsio->kern_total_len = sup_page_size; 9335 } else { 9336 ctsio->residual = 0; 9337 ctsio->kern_data_len = alloc_len; 9338 ctsio->kern_total_len = alloc_len; 9339 } 9340 ctsio->kern_data_resid = 0; 9341 ctsio->kern_rel_offset = 0; 9342 ctsio->kern_sg_entries = 0; 9343 9344 /* 9345 * The control device is always connected. The disk device, on the 9346 * other hand, may not be online all the time. Need to change this 9347 * to figure out whether the disk device is actually online or not. 9348 */ 9349 if (lun != NULL) 9350 pages->device = (SID_QUAL_LU_CONNECTED << 5) | 9351 lun->be_lun->lun_type; 9352 else 9353 pages->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9354 9355 p = 0; 9356 /* Supported VPD pages */ 9357 pages->page_list[p++] = SVPD_SUPPORTED_PAGES; 9358 /* Serial Number */ 9359 pages->page_list[p++] = SVPD_UNIT_SERIAL_NUMBER; 9360 /* Device Identification */ 9361 pages->page_list[p++] = SVPD_DEVICE_ID; 9362 /* Extended INQUIRY Data */ 9363 pages->page_list[p++] = SVPD_EXTENDED_INQUIRY_DATA; 9364 /* Mode Page Policy */ 9365 pages->page_list[p++] = SVPD_MODE_PAGE_POLICY; 9366 /* SCSI Ports */ 9367 pages->page_list[p++] = SVPD_SCSI_PORTS; 9368 /* Third-party Copy */ 9369 pages->page_list[p++] = SVPD_SCSI_TPC; 9370 if (lun != NULL && lun->be_lun->lun_type == T_DIRECT) { 9371 /* Block limits */ 9372 pages->page_list[p++] = SVPD_BLOCK_LIMITS; 9373 /* Block Device Characteristics */ 9374 pages->page_list[p++] = SVPD_BDC; 9375 /* Logical Block Provisioning */ 9376 pages->page_list[p++] = SVPD_LBP; 9377 } 9378 pages->length = p; 9379 9380 ctl_set_success(ctsio); 9381 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9382 ctsio->be_move_done = ctl_config_move_done; 9383 ctl_datamove((union ctl_io *)ctsio); 9384 return (CTL_RETVAL_COMPLETE); 9385} 9386 9387/* 9388 * SCSI VPD page 0x80, the Unit Serial Number page. 9389 */ 9390static int 9391ctl_inquiry_evpd_serial(struct ctl_scsiio *ctsio, int alloc_len) 9392{ 9393 struct ctl_lun *lun = CTL_LUN(ctsio); 9394 struct scsi_vpd_unit_serial_number *sn_ptr; 9395 int data_len; 9396 9397 data_len = 4 + CTL_SN_LEN; 9398 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9399 sn_ptr = (struct scsi_vpd_unit_serial_number *)ctsio->kern_data_ptr; 9400 if (data_len < alloc_len) { 9401 ctsio->residual = alloc_len - data_len; 9402 ctsio->kern_data_len = data_len; 9403 ctsio->kern_total_len = data_len; 9404 } else { 9405 ctsio->residual = 0; 9406 ctsio->kern_data_len = alloc_len; 9407 ctsio->kern_total_len = alloc_len; 9408 } 9409 ctsio->kern_data_resid = 0; 9410 ctsio->kern_rel_offset = 0; 9411 ctsio->kern_sg_entries = 0; 9412 9413 /* 9414 * The control device is always connected. The disk device, on the 9415 * other hand, may not be online all the time. Need to change this 9416 * to figure out whether the disk device is actually online or not. 9417 */ 9418 if (lun != NULL) 9419 sn_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9420 lun->be_lun->lun_type; 9421 else 9422 sn_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9423 9424 sn_ptr->page_code = SVPD_UNIT_SERIAL_NUMBER; 9425 sn_ptr->length = CTL_SN_LEN; 9426 /* 9427 * If we don't have a LUN, we just leave the serial number as 9428 * all spaces. 9429 */ 9430 if (lun != NULL) { 9431 strncpy((char *)sn_ptr->serial_num, 9432 (char *)lun->be_lun->serial_num, CTL_SN_LEN); 9433 } else 9434 memset(sn_ptr->serial_num, 0x20, CTL_SN_LEN); 9435 9436 ctl_set_success(ctsio); 9437 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9438 ctsio->be_move_done = ctl_config_move_done; 9439 ctl_datamove((union ctl_io *)ctsio); 9440 return (CTL_RETVAL_COMPLETE); 9441} 9442 9443 9444/* 9445 * SCSI VPD page 0x86, the Extended INQUIRY Data page. 9446 */ 9447static int 9448ctl_inquiry_evpd_eid(struct ctl_scsiio *ctsio, int alloc_len) 9449{ 9450 struct ctl_lun *lun = CTL_LUN(ctsio); 9451 struct scsi_vpd_extended_inquiry_data *eid_ptr; 9452 int data_len; 9453 9454 data_len = sizeof(struct scsi_vpd_extended_inquiry_data); 9455 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9456 eid_ptr = (struct scsi_vpd_extended_inquiry_data *)ctsio->kern_data_ptr; 9457 ctsio->kern_sg_entries = 0; 9458 9459 if (data_len < alloc_len) { 9460 ctsio->residual = alloc_len - data_len; 9461 ctsio->kern_data_len = data_len; 9462 ctsio->kern_total_len = data_len; 9463 } else { 9464 ctsio->residual = 0; 9465 ctsio->kern_data_len = alloc_len; 9466 ctsio->kern_total_len = alloc_len; 9467 } 9468 ctsio->kern_data_resid = 0; 9469 ctsio->kern_rel_offset = 0; 9470 ctsio->kern_sg_entries = 0; 9471 9472 /* 9473 * The control device is always connected. The disk device, on the 9474 * other hand, may not be online all the time. 9475 */ 9476 if (lun != NULL) 9477 eid_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9478 lun->be_lun->lun_type; 9479 else 9480 eid_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9481 eid_ptr->page_code = SVPD_EXTENDED_INQUIRY_DATA; 9482 scsi_ulto2b(data_len - 4, eid_ptr->page_length); 9483 /* 9484 * We support head of queue, ordered and simple tags. 9485 */ 9486 eid_ptr->flags2 = SVPD_EID_HEADSUP | SVPD_EID_ORDSUP | SVPD_EID_SIMPSUP; 9487 /* 9488 * Volatile cache supported. 9489 */ 9490 eid_ptr->flags3 = SVPD_EID_V_SUP; 9491 9492 /* 9493 * This means that we clear the REPORTED LUNS DATA HAS CHANGED unit 9494 * attention for a particular IT nexus on all LUNs once we report 9495 * it to that nexus once. This bit is required as of SPC-4. 9496 */ 9497 eid_ptr->flags4 = SVPD_EID_LUICLR; 9498 9499 /* 9500 * We support revert to defaults (RTD) bit in MODE SELECT. 9501 */ 9502 eid_ptr->flags5 = SVPD_EID_RTD_SUP; 9503 9504 /* 9505 * XXX KDM in order to correctly answer this, we would need 9506 * information from the SIM to determine how much sense data it 9507 * can send. So this would really be a path inquiry field, most 9508 * likely. This can be set to a maximum of 252 according to SPC-4, 9509 * but the hardware may or may not be able to support that much. 9510 * 0 just means that the maximum sense data length is not reported. 9511 */ 9512 eid_ptr->max_sense_length = 0; 9513 9514 ctl_set_success(ctsio); 9515 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9516 ctsio->be_move_done = ctl_config_move_done; 9517 ctl_datamove((union ctl_io *)ctsio); 9518 return (CTL_RETVAL_COMPLETE); 9519} 9520 9521static int 9522ctl_inquiry_evpd_mpp(struct ctl_scsiio *ctsio, int alloc_len) 9523{ 9524 struct ctl_lun *lun = CTL_LUN(ctsio); 9525 struct scsi_vpd_mode_page_policy *mpp_ptr; 9526 int data_len; 9527 9528 data_len = sizeof(struct scsi_vpd_mode_page_policy) + 9529 sizeof(struct scsi_vpd_mode_page_policy_descr); 9530 9531 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9532 mpp_ptr = (struct scsi_vpd_mode_page_policy *)ctsio->kern_data_ptr; 9533 ctsio->kern_sg_entries = 0; 9534 9535 if (data_len < alloc_len) { 9536 ctsio->residual = alloc_len - data_len; 9537 ctsio->kern_data_len = data_len; 9538 ctsio->kern_total_len = data_len; 9539 } else { 9540 ctsio->residual = 0; 9541 ctsio->kern_data_len = alloc_len; 9542 ctsio->kern_total_len = alloc_len; 9543 } 9544 ctsio->kern_data_resid = 0; 9545 ctsio->kern_rel_offset = 0; 9546 ctsio->kern_sg_entries = 0; 9547 9548 /* 9549 * The control device is always connected. The disk device, on the 9550 * other hand, may not be online all the time. 9551 */ 9552 if (lun != NULL) 9553 mpp_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9554 lun->be_lun->lun_type; 9555 else 9556 mpp_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9557 mpp_ptr->page_code = SVPD_MODE_PAGE_POLICY; 9558 scsi_ulto2b(data_len - 4, mpp_ptr->page_length); 9559 mpp_ptr->descr[0].page_code = 0x3f; 9560 mpp_ptr->descr[0].subpage_code = 0xff; 9561 mpp_ptr->descr[0].policy = SVPD_MPP_SHARED; 9562 9563 ctl_set_success(ctsio); 9564 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9565 ctsio->be_move_done = ctl_config_move_done; 9566 ctl_datamove((union ctl_io *)ctsio); 9567 return (CTL_RETVAL_COMPLETE); 9568} 9569 9570/* 9571 * SCSI VPD page 0x83, the Device Identification page. 9572 */ 9573static int 9574ctl_inquiry_evpd_devid(struct ctl_scsiio *ctsio, int alloc_len) 9575{ 9576 struct ctl_softc *softc = CTL_SOFTC(ctsio); 9577 struct ctl_port *port = CTL_PORT(ctsio); 9578 struct ctl_lun *lun = CTL_LUN(ctsio); 9579 struct scsi_vpd_device_id *devid_ptr; 9580 struct scsi_vpd_id_descriptor *desc; 9581 int data_len, g; 9582 uint8_t proto; 9583 9584 data_len = sizeof(struct scsi_vpd_device_id) + 9585 sizeof(struct scsi_vpd_id_descriptor) + 9586 sizeof(struct scsi_vpd_id_rel_trgt_port_id) + 9587 sizeof(struct scsi_vpd_id_descriptor) + 9588 sizeof(struct scsi_vpd_id_trgt_port_grp_id); 9589 if (lun && lun->lun_devid) 9590 data_len += lun->lun_devid->len; 9591 if (port && port->port_devid) 9592 data_len += port->port_devid->len; 9593 if (port && port->target_devid) 9594 data_len += port->target_devid->len; 9595 9596 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9597 devid_ptr = (struct scsi_vpd_device_id *)ctsio->kern_data_ptr; 9598 ctsio->kern_sg_entries = 0; 9599 9600 if (data_len < alloc_len) { 9601 ctsio->residual = alloc_len - data_len; 9602 ctsio->kern_data_len = data_len; 9603 ctsio->kern_total_len = data_len; 9604 } else { 9605 ctsio->residual = 0; 9606 ctsio->kern_data_len = alloc_len; 9607 ctsio->kern_total_len = alloc_len; 9608 } 9609 ctsio->kern_data_resid = 0; 9610 ctsio->kern_rel_offset = 0; 9611 ctsio->kern_sg_entries = 0; 9612 9613 /* 9614 * The control device is always connected. The disk device, on the 9615 * other hand, may not be online all the time. 9616 */ 9617 if (lun != NULL) 9618 devid_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9619 lun->be_lun->lun_type; 9620 else 9621 devid_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9622 devid_ptr->page_code = SVPD_DEVICE_ID; 9623 scsi_ulto2b(data_len - 4, devid_ptr->length); 9624 9625 if (port && port->port_type == CTL_PORT_FC) 9626 proto = SCSI_PROTO_FC << 4; 9627 else if (port && port->port_type == CTL_PORT_ISCSI) 9628 proto = SCSI_PROTO_ISCSI << 4; 9629 else 9630 proto = SCSI_PROTO_SPI << 4; 9631 desc = (struct scsi_vpd_id_descriptor *)devid_ptr->desc_list; 9632 9633 /* 9634 * We're using a LUN association here. i.e., this device ID is a 9635 * per-LUN identifier. 9636 */ 9637 if (lun && lun->lun_devid) { 9638 memcpy(desc, lun->lun_devid->data, lun->lun_devid->len); 9639 desc = (struct scsi_vpd_id_descriptor *)((uint8_t *)desc + 9640 lun->lun_devid->len); 9641 } 9642 9643 /* 9644 * This is for the WWPN which is a port association. 9645 */ 9646 if (port && port->port_devid) { 9647 memcpy(desc, port->port_devid->data, port->port_devid->len); 9648 desc = (struct scsi_vpd_id_descriptor *)((uint8_t *)desc + 9649 port->port_devid->len); 9650 } 9651 9652 /* 9653 * This is for the Relative Target Port(type 4h) identifier 9654 */ 9655 desc->proto_codeset = proto | SVPD_ID_CODESET_BINARY; 9656 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_PORT | 9657 SVPD_ID_TYPE_RELTARG; 9658 desc->length = 4; 9659 scsi_ulto2b(ctsio->io_hdr.nexus.targ_port, &desc->identifier[2]); 9660 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 9661 sizeof(struct scsi_vpd_id_rel_trgt_port_id)); 9662 9663 /* 9664 * This is for the Target Port Group(type 5h) identifier 9665 */ 9666 desc->proto_codeset = proto | SVPD_ID_CODESET_BINARY; 9667 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_PORT | 9668 SVPD_ID_TYPE_TPORTGRP; 9669 desc->length = 4; 9670 if (softc->is_single || 9671 (port && port->status & CTL_PORT_STATUS_HA_SHARED)) 9672 g = 1; 9673 else 9674 g = 2 + ctsio->io_hdr.nexus.targ_port / softc->port_cnt; 9675 scsi_ulto2b(g, &desc->identifier[2]); 9676 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 9677 sizeof(struct scsi_vpd_id_trgt_port_grp_id)); 9678 9679 /* 9680 * This is for the Target identifier 9681 */ 9682 if (port && port->target_devid) { 9683 memcpy(desc, port->target_devid->data, port->target_devid->len); 9684 } 9685 9686 ctl_set_success(ctsio); 9687 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9688 ctsio->be_move_done = ctl_config_move_done; 9689 ctl_datamove((union ctl_io *)ctsio); 9690 return (CTL_RETVAL_COMPLETE); 9691} 9692 9693static int 9694ctl_inquiry_evpd_scsi_ports(struct ctl_scsiio *ctsio, int alloc_len) 9695{ 9696 struct ctl_softc *softc = CTL_SOFTC(ctsio); 9697 struct ctl_lun *lun = CTL_LUN(ctsio); 9698 struct scsi_vpd_scsi_ports *sp; 9699 struct scsi_vpd_port_designation *pd; 9700 struct scsi_vpd_port_designation_cont *pdc; 9701 struct ctl_port *port; 9702 int data_len, num_target_ports, iid_len, id_len; 9703 9704 num_target_ports = 0; 9705 iid_len = 0; 9706 id_len = 0; 9707 mtx_lock(&softc->ctl_lock); 9708 STAILQ_FOREACH(port, &softc->port_list, links) { 9709 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 9710 continue; 9711 if (lun != NULL && 9712 ctl_lun_map_to_port(port, lun->lun) == UINT32_MAX) 9713 continue; 9714 num_target_ports++; 9715 if (port->init_devid) 9716 iid_len += port->init_devid->len; 9717 if (port->port_devid) 9718 id_len += port->port_devid->len; 9719 } 9720 mtx_unlock(&softc->ctl_lock); 9721 9722 data_len = sizeof(struct scsi_vpd_scsi_ports) + 9723 num_target_ports * (sizeof(struct scsi_vpd_port_designation) + 9724 sizeof(struct scsi_vpd_port_designation_cont)) + iid_len + id_len; 9725 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9726 sp = (struct scsi_vpd_scsi_ports *)ctsio->kern_data_ptr; 9727 ctsio->kern_sg_entries = 0; 9728 9729 if (data_len < alloc_len) { 9730 ctsio->residual = alloc_len - data_len; 9731 ctsio->kern_data_len = data_len; 9732 ctsio->kern_total_len = data_len; 9733 } else { 9734 ctsio->residual = 0; 9735 ctsio->kern_data_len = alloc_len; 9736 ctsio->kern_total_len = alloc_len; 9737 } 9738 ctsio->kern_data_resid = 0; 9739 ctsio->kern_rel_offset = 0; 9740 ctsio->kern_sg_entries = 0; 9741 9742 /* 9743 * The control device is always connected. The disk device, on the 9744 * other hand, may not be online all the time. Need to change this 9745 * to figure out whether the disk device is actually online or not. 9746 */ 9747 if (lun != NULL) 9748 sp->device = (SID_QUAL_LU_CONNECTED << 5) | 9749 lun->be_lun->lun_type; 9750 else 9751 sp->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9752 9753 sp->page_code = SVPD_SCSI_PORTS; 9754 scsi_ulto2b(data_len - sizeof(struct scsi_vpd_scsi_ports), 9755 sp->page_length); 9756 pd = &sp->design[0]; 9757 9758 mtx_lock(&softc->ctl_lock); 9759 STAILQ_FOREACH(port, &softc->port_list, links) { 9760 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 9761 continue; 9762 if (lun != NULL && 9763 ctl_lun_map_to_port(port, lun->lun) == UINT32_MAX) 9764 continue; 9765 scsi_ulto2b(port->targ_port, pd->relative_port_id); 9766 if (port->init_devid) { 9767 iid_len = port->init_devid->len; 9768 memcpy(pd->initiator_transportid, 9769 port->init_devid->data, port->init_devid->len); 9770 } else 9771 iid_len = 0; 9772 scsi_ulto2b(iid_len, pd->initiator_transportid_length); 9773 pdc = (struct scsi_vpd_port_designation_cont *) 9774 (&pd->initiator_transportid[iid_len]); 9775 if (port->port_devid) { 9776 id_len = port->port_devid->len; 9777 memcpy(pdc->target_port_descriptors, 9778 port->port_devid->data, port->port_devid->len); 9779 } else 9780 id_len = 0; 9781 scsi_ulto2b(id_len, pdc->target_port_descriptors_length); 9782 pd = (struct scsi_vpd_port_designation *) 9783 ((uint8_t *)pdc->target_port_descriptors + id_len); 9784 } 9785 mtx_unlock(&softc->ctl_lock); 9786 9787 ctl_set_success(ctsio); 9788 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9789 ctsio->be_move_done = ctl_config_move_done; 9790 ctl_datamove((union ctl_io *)ctsio); 9791 return (CTL_RETVAL_COMPLETE); 9792} 9793 9794static int 9795ctl_inquiry_evpd_block_limits(struct ctl_scsiio *ctsio, int alloc_len) 9796{ 9797 struct ctl_lun *lun = CTL_LUN(ctsio); 9798 struct scsi_vpd_block_limits *bl_ptr; 9799 uint64_t ival; 9800 9801 ctsio->kern_data_ptr = malloc(sizeof(*bl_ptr), M_CTL, M_WAITOK | M_ZERO); 9802 bl_ptr = (struct scsi_vpd_block_limits *)ctsio->kern_data_ptr; 9803 ctsio->kern_sg_entries = 0; 9804 9805 if (sizeof(*bl_ptr) < alloc_len) { 9806 ctsio->residual = alloc_len - sizeof(*bl_ptr); 9807 ctsio->kern_data_len = sizeof(*bl_ptr); 9808 ctsio->kern_total_len = sizeof(*bl_ptr); 9809 } else { 9810 ctsio->residual = 0; 9811 ctsio->kern_data_len = alloc_len; 9812 ctsio->kern_total_len = alloc_len; 9813 } 9814 ctsio->kern_data_resid = 0; 9815 ctsio->kern_rel_offset = 0; 9816 ctsio->kern_sg_entries = 0; 9817 9818 /* 9819 * The control device is always connected. The disk device, on the 9820 * other hand, may not be online all the time. Need to change this 9821 * to figure out whether the disk device is actually online or not. 9822 */ 9823 if (lun != NULL) 9824 bl_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9825 lun->be_lun->lun_type; 9826 else 9827 bl_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9828 9829 bl_ptr->page_code = SVPD_BLOCK_LIMITS; 9830 scsi_ulto2b(sizeof(*bl_ptr) - 4, bl_ptr->page_length); 9831 bl_ptr->max_cmp_write_len = 0xff; 9832 scsi_ulto4b(0xffffffff, bl_ptr->max_txfer_len); 9833 if (lun != NULL) { 9834 scsi_ulto4b(lun->be_lun->opttxferlen, bl_ptr->opt_txfer_len); 9835 if (lun->be_lun->flags & CTL_LUN_FLAG_UNMAP) { 9836 ival = 0xffffffff; 9837 ctl_get_opt_number(&lun->be_lun->options, 9838 "unmap_max_lba", &ival); 9839 scsi_ulto4b(ival, bl_ptr->max_unmap_lba_cnt); 9840 ival = 0xffffffff; 9841 ctl_get_opt_number(&lun->be_lun->options, 9842 "unmap_max_descr", &ival); 9843 scsi_ulto4b(ival, bl_ptr->max_unmap_blk_cnt); 9844 if (lun->be_lun->ublockexp != 0) { 9845 scsi_ulto4b((1 << lun->be_lun->ublockexp), 9846 bl_ptr->opt_unmap_grain); 9847 scsi_ulto4b(0x80000000 | lun->be_lun->ublockoff, 9848 bl_ptr->unmap_grain_align); 9849 } 9850 } 9851 scsi_ulto4b(lun->be_lun->atomicblock, 9852 bl_ptr->max_atomic_transfer_length); 9853 scsi_ulto4b(0, bl_ptr->atomic_alignment); 9854 scsi_ulto4b(0, bl_ptr->atomic_transfer_length_granularity); 9855 scsi_ulto4b(0, bl_ptr->max_atomic_transfer_length_with_atomic_boundary); 9856 scsi_ulto4b(0, bl_ptr->max_atomic_boundary_size); 9857 ival = UINT64_MAX; 9858 ctl_get_opt_number(&lun->be_lun->options, "write_same_max_lba", &ival); 9859 scsi_u64to8b(ival, bl_ptr->max_write_same_length); 9860 } 9861 9862 ctl_set_success(ctsio); 9863 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9864 ctsio->be_move_done = ctl_config_move_done; 9865 ctl_datamove((union ctl_io *)ctsio); 9866 return (CTL_RETVAL_COMPLETE); 9867} 9868 9869static int 9870ctl_inquiry_evpd_bdc(struct ctl_scsiio *ctsio, int alloc_len) 9871{ 9872 struct ctl_lun *lun = CTL_LUN(ctsio); 9873 struct scsi_vpd_block_device_characteristics *bdc_ptr; 9874 const char *value; 9875 u_int i; 9876 9877 ctsio->kern_data_ptr = malloc(sizeof(*bdc_ptr), M_CTL, M_WAITOK | M_ZERO); 9878 bdc_ptr = (struct scsi_vpd_block_device_characteristics *)ctsio->kern_data_ptr; 9879 ctsio->kern_sg_entries = 0; 9880 9881 if (sizeof(*bdc_ptr) < alloc_len) { 9882 ctsio->residual = alloc_len - sizeof(*bdc_ptr); 9883 ctsio->kern_data_len = sizeof(*bdc_ptr); 9884 ctsio->kern_total_len = sizeof(*bdc_ptr); 9885 } else { 9886 ctsio->residual = 0; 9887 ctsio->kern_data_len = alloc_len; 9888 ctsio->kern_total_len = alloc_len; 9889 } 9890 ctsio->kern_data_resid = 0; 9891 ctsio->kern_rel_offset = 0; 9892 ctsio->kern_sg_entries = 0; 9893 9894 /* 9895 * The control device is always connected. The disk device, on the 9896 * other hand, may not be online all the time. Need to change this 9897 * to figure out whether the disk device is actually online or not. 9898 */ 9899 if (lun != NULL) 9900 bdc_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9901 lun->be_lun->lun_type; 9902 else 9903 bdc_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9904 bdc_ptr->page_code = SVPD_BDC; 9905 scsi_ulto2b(sizeof(*bdc_ptr) - 4, bdc_ptr->page_length); 9906 if (lun != NULL && 9907 (value = ctl_get_opt(&lun->be_lun->options, "rpm")) != NULL) 9908 i = strtol(value, NULL, 0); 9909 else 9910 i = CTL_DEFAULT_ROTATION_RATE; 9911 scsi_ulto2b(i, bdc_ptr->medium_rotation_rate); 9912 if (lun != NULL && 9913 (value = ctl_get_opt(&lun->be_lun->options, "formfactor")) != NULL) 9914 i = strtol(value, NULL, 0); 9915 else 9916 i = 0; 9917 bdc_ptr->wab_wac_ff = (i & 0x0f); 9918 bdc_ptr->flags = SVPD_FUAB | SVPD_VBULS; 9919 9920 ctl_set_success(ctsio); 9921 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9922 ctsio->be_move_done = ctl_config_move_done; 9923 ctl_datamove((union ctl_io *)ctsio); 9924 return (CTL_RETVAL_COMPLETE); 9925} 9926 9927static int 9928ctl_inquiry_evpd_lbp(struct ctl_scsiio *ctsio, int alloc_len) 9929{ 9930 struct ctl_lun *lun = CTL_LUN(ctsio); 9931 struct scsi_vpd_logical_block_prov *lbp_ptr; 9932 const char *value; 9933 9934 ctsio->kern_data_ptr = malloc(sizeof(*lbp_ptr), M_CTL, M_WAITOK | M_ZERO); 9935 lbp_ptr = (struct scsi_vpd_logical_block_prov *)ctsio->kern_data_ptr; 9936 ctsio->kern_sg_entries = 0; 9937 9938 if (sizeof(*lbp_ptr) < alloc_len) { 9939 ctsio->residual = alloc_len - sizeof(*lbp_ptr); 9940 ctsio->kern_data_len = sizeof(*lbp_ptr); 9941 ctsio->kern_total_len = sizeof(*lbp_ptr); 9942 } else { 9943 ctsio->residual = 0; 9944 ctsio->kern_data_len = alloc_len; 9945 ctsio->kern_total_len = alloc_len; 9946 } 9947 ctsio->kern_data_resid = 0; 9948 ctsio->kern_rel_offset = 0; 9949 ctsio->kern_sg_entries = 0; 9950 9951 /* 9952 * The control device is always connected. The disk device, on the 9953 * other hand, may not be online all the time. Need to change this 9954 * to figure out whether the disk device is actually online or not. 9955 */ 9956 if (lun != NULL) 9957 lbp_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9958 lun->be_lun->lun_type; 9959 else 9960 lbp_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9961 9962 lbp_ptr->page_code = SVPD_LBP; 9963 scsi_ulto2b(sizeof(*lbp_ptr) - 4, lbp_ptr->page_length); 9964 lbp_ptr->threshold_exponent = CTL_LBP_EXPONENT; 9965 if (lun != NULL && lun->be_lun->flags & CTL_LUN_FLAG_UNMAP) { 9966 lbp_ptr->flags = SVPD_LBP_UNMAP | SVPD_LBP_WS16 | 9967 SVPD_LBP_WS10 | SVPD_LBP_RZ | SVPD_LBP_ANC_SUP; 9968 value = ctl_get_opt(&lun->be_lun->options, "provisioning_type"); 9969 if (value != NULL) { 9970 if (strcmp(value, "resource") == 0) 9971 lbp_ptr->prov_type = SVPD_LBP_RESOURCE; 9972 else if (strcmp(value, "thin") == 0) 9973 lbp_ptr->prov_type = SVPD_LBP_THIN; 9974 } else 9975 lbp_ptr->prov_type = SVPD_LBP_THIN; 9976 } 9977 9978 ctl_set_success(ctsio); 9979 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9980 ctsio->be_move_done = ctl_config_move_done; 9981 ctl_datamove((union ctl_io *)ctsio); 9982 return (CTL_RETVAL_COMPLETE); 9983} 9984 9985/* 9986 * INQUIRY with the EVPD bit set. 9987 */ 9988static int 9989ctl_inquiry_evpd(struct ctl_scsiio *ctsio) 9990{ 9991 struct ctl_lun *lun = CTL_LUN(ctsio); 9992 struct scsi_inquiry *cdb; 9993 int alloc_len, retval; 9994 9995 cdb = (struct scsi_inquiry *)ctsio->cdb; 9996 alloc_len = scsi_2btoul(cdb->length); 9997 9998 switch (cdb->page_code) { 9999 case SVPD_SUPPORTED_PAGES: 10000 retval = ctl_inquiry_evpd_supported(ctsio, alloc_len); 10001 break; 10002 case SVPD_UNIT_SERIAL_NUMBER: 10003 retval = ctl_inquiry_evpd_serial(ctsio, alloc_len); 10004 break; 10005 case SVPD_DEVICE_ID: 10006 retval = ctl_inquiry_evpd_devid(ctsio, alloc_len); 10007 break; 10008 case SVPD_EXTENDED_INQUIRY_DATA: 10009 retval = ctl_inquiry_evpd_eid(ctsio, alloc_len); 10010 break; 10011 case SVPD_MODE_PAGE_POLICY: 10012 retval = ctl_inquiry_evpd_mpp(ctsio, alloc_len); 10013 break; 10014 case SVPD_SCSI_PORTS: 10015 retval = ctl_inquiry_evpd_scsi_ports(ctsio, alloc_len); 10016 break; 10017 case SVPD_SCSI_TPC: 10018 retval = ctl_inquiry_evpd_tpc(ctsio, alloc_len); 10019 break; 10020 case SVPD_BLOCK_LIMITS: 10021 if (lun == NULL || lun->be_lun->lun_type != T_DIRECT) 10022 goto err; 10023 retval = ctl_inquiry_evpd_block_limits(ctsio, alloc_len); 10024 break; 10025 case SVPD_BDC: 10026 if (lun == NULL || lun->be_lun->lun_type != T_DIRECT) 10027 goto err; 10028 retval = ctl_inquiry_evpd_bdc(ctsio, alloc_len); 10029 break; 10030 case SVPD_LBP: 10031 if (lun == NULL || lun->be_lun->lun_type != T_DIRECT) 10032 goto err; 10033 retval = ctl_inquiry_evpd_lbp(ctsio, alloc_len); 10034 break; 10035 default: 10036err: 10037 ctl_set_invalid_field(ctsio, 10038 /*sks_valid*/ 1, 10039 /*command*/ 1, 10040 /*field*/ 2, 10041 /*bit_valid*/ 0, 10042 /*bit*/ 0); 10043 ctl_done((union ctl_io *)ctsio); 10044 retval = CTL_RETVAL_COMPLETE; 10045 break; 10046 } 10047 10048 return (retval); 10049} 10050 10051/* 10052 * Standard INQUIRY data. 10053 */ 10054static int 10055ctl_inquiry_std(struct ctl_scsiio *ctsio) 10056{ 10057 struct ctl_softc *softc = CTL_SOFTC(ctsio); 10058 struct ctl_port *port = CTL_PORT(ctsio); 10059 struct ctl_lun *lun = CTL_LUN(ctsio); 10060 struct scsi_inquiry_data *inq_ptr; 10061 struct scsi_inquiry *cdb; 10062 char *val; 10063 uint32_t alloc_len, data_len; 10064 ctl_port_type port_type; 10065 10066 port_type = port->port_type; 10067 if (port_type == CTL_PORT_IOCTL || port_type == CTL_PORT_INTERNAL) 10068 port_type = CTL_PORT_SCSI; 10069 10070 cdb = (struct scsi_inquiry *)ctsio->cdb; 10071 alloc_len = scsi_2btoul(cdb->length); 10072 10073 /* 10074 * We malloc the full inquiry data size here and fill it 10075 * in. If the user only asks for less, we'll give him 10076 * that much. 10077 */ 10078 data_len = offsetof(struct scsi_inquiry_data, vendor_specific1); 10079 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 10080 inq_ptr = (struct scsi_inquiry_data *)ctsio->kern_data_ptr; 10081 ctsio->kern_sg_entries = 0; 10082 ctsio->kern_data_resid = 0; 10083 ctsio->kern_rel_offset = 0; 10084 10085 if (data_len < alloc_len) { 10086 ctsio->residual = alloc_len - data_len; 10087 ctsio->kern_data_len = data_len; 10088 ctsio->kern_total_len = data_len; 10089 } else { 10090 ctsio->residual = 0; 10091 ctsio->kern_data_len = alloc_len; 10092 ctsio->kern_total_len = alloc_len; 10093 } 10094 10095 if (lun != NULL) { 10096 if ((lun->flags & CTL_LUN_PRIMARY_SC) || 10097 softc->ha_link >= CTL_HA_LINK_UNKNOWN) { 10098 inq_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10099 lun->be_lun->lun_type; 10100 } else { 10101 inq_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | 10102 lun->be_lun->lun_type; 10103 } 10104 if (lun->flags & CTL_LUN_REMOVABLE) 10105 inq_ptr->dev_qual2 |= SID_RMB; 10106 } else 10107 inq_ptr->device = (SID_QUAL_BAD_LU << 5) | T_NODEVICE; 10108 10109 /* RMB in byte 2 is 0 */ 10110 inq_ptr->version = SCSI_REV_SPC5; 10111 10112 /* 10113 * According to SAM-3, even if a device only supports a single 10114 * level of LUN addressing, it should still set the HISUP bit: 10115 * 10116 * 4.9.1 Logical unit numbers overview 10117 * 10118 * All logical unit number formats described in this standard are 10119 * hierarchical in structure even when only a single level in that 10120 * hierarchy is used. The HISUP bit shall be set to one in the 10121 * standard INQUIRY data (see SPC-2) when any logical unit number 10122 * format described in this standard is used. Non-hierarchical 10123 * formats are outside the scope of this standard. 10124 * 10125 * Therefore we set the HiSup bit here. 10126 * 10127 * The response format is 2, per SPC-3. 10128 */ 10129 inq_ptr->response_format = SID_HiSup | 2; 10130 10131 inq_ptr->additional_length = data_len - 10132 (offsetof(struct scsi_inquiry_data, additional_length) + 1); 10133 CTL_DEBUG_PRINT(("additional_length = %d\n", 10134 inq_ptr->additional_length)); 10135 10136 inq_ptr->spc3_flags = SPC3_SID_3PC | SPC3_SID_TPGS_IMPLICIT; 10137 if (port_type == CTL_PORT_SCSI) 10138 inq_ptr->spc2_flags = SPC2_SID_ADDR16; 10139 inq_ptr->spc2_flags |= SPC2_SID_MultiP; 10140 inq_ptr->flags = SID_CmdQue; 10141 if (port_type == CTL_PORT_SCSI) 10142 inq_ptr->flags |= SID_WBus16 | SID_Sync; 10143 10144 /* 10145 * Per SPC-3, unused bytes in ASCII strings are filled with spaces. 10146 * We have 8 bytes for the vendor name, and 16 bytes for the device 10147 * name and 4 bytes for the revision. 10148 */ 10149 if (lun == NULL || (val = ctl_get_opt(&lun->be_lun->options, 10150 "vendor")) == NULL) { 10151 strncpy(inq_ptr->vendor, CTL_VENDOR, sizeof(inq_ptr->vendor)); 10152 } else { 10153 memset(inq_ptr->vendor, ' ', sizeof(inq_ptr->vendor)); 10154 strncpy(inq_ptr->vendor, val, 10155 min(sizeof(inq_ptr->vendor), strlen(val))); 10156 } 10157 if (lun == NULL) { 10158 strncpy(inq_ptr->product, CTL_DIRECT_PRODUCT, 10159 sizeof(inq_ptr->product)); 10160 } else if ((val = ctl_get_opt(&lun->be_lun->options, "product")) == NULL) { 10161 switch (lun->be_lun->lun_type) { 10162 case T_DIRECT: 10163 strncpy(inq_ptr->product, CTL_DIRECT_PRODUCT, 10164 sizeof(inq_ptr->product)); 10165 break; 10166 case T_PROCESSOR: 10167 strncpy(inq_ptr->product, CTL_PROCESSOR_PRODUCT, 10168 sizeof(inq_ptr->product)); 10169 break; 10170 case T_CDROM: 10171 strncpy(inq_ptr->product, CTL_CDROM_PRODUCT, 10172 sizeof(inq_ptr->product)); 10173 break; 10174 default: 10175 strncpy(inq_ptr->product, CTL_UNKNOWN_PRODUCT, 10176 sizeof(inq_ptr->product)); 10177 break; 10178 } 10179 } else { 10180 memset(inq_ptr->product, ' ', sizeof(inq_ptr->product)); 10181 strncpy(inq_ptr->product, val, 10182 min(sizeof(inq_ptr->product), strlen(val))); 10183 } 10184 10185 /* 10186 * XXX make this a macro somewhere so it automatically gets 10187 * incremented when we make changes. 10188 */ 10189 if (lun == NULL || (val = ctl_get_opt(&lun->be_lun->options, 10190 "revision")) == NULL) { 10191 strncpy(inq_ptr->revision, "0001", sizeof(inq_ptr->revision)); 10192 } else { 10193 memset(inq_ptr->revision, ' ', sizeof(inq_ptr->revision)); 10194 strncpy(inq_ptr->revision, val, 10195 min(sizeof(inq_ptr->revision), strlen(val))); 10196 } 10197 10198 /* 10199 * For parallel SCSI, we support double transition and single 10200 * transition clocking. We also support QAS (Quick Arbitration 10201 * and Selection) and Information Unit transfers on both the 10202 * control and array devices. 10203 */ 10204 if (port_type == CTL_PORT_SCSI) 10205 inq_ptr->spi3data = SID_SPI_CLOCK_DT_ST | SID_SPI_QAS | 10206 SID_SPI_IUS; 10207 10208 /* SAM-6 (no version claimed) */ 10209 scsi_ulto2b(0x00C0, inq_ptr->version1); 10210 /* SPC-5 (no version claimed) */ 10211 scsi_ulto2b(0x05C0, inq_ptr->version2); 10212 if (port_type == CTL_PORT_FC) { 10213 /* FCP-2 ANSI INCITS.350:2003 */ 10214 scsi_ulto2b(0x0917, inq_ptr->version3); 10215 } else if (port_type == CTL_PORT_SCSI) { 10216 /* SPI-4 ANSI INCITS.362:200x */ 10217 scsi_ulto2b(0x0B56, inq_ptr->version3); 10218 } else if (port_type == CTL_PORT_ISCSI) { 10219 /* iSCSI (no version claimed) */ 10220 scsi_ulto2b(0x0960, inq_ptr->version3); 10221 } else if (port_type == CTL_PORT_SAS) { 10222 /* SAS (no version claimed) */ 10223 scsi_ulto2b(0x0BE0, inq_ptr->version3); 10224 } 10225 10226 if (lun == NULL) { 10227 /* SBC-4 (no version claimed) */ 10228 scsi_ulto2b(0x0600, inq_ptr->version4); 10229 } else { 10230 switch (lun->be_lun->lun_type) { 10231 case T_DIRECT: 10232 /* SBC-4 (no version claimed) */ 10233 scsi_ulto2b(0x0600, inq_ptr->version4); 10234 break; 10235 case T_PROCESSOR: 10236 break; 10237 case T_CDROM: 10238 /* MMC-6 (no version claimed) */ 10239 scsi_ulto2b(0x04E0, inq_ptr->version4); 10240 break; 10241 default: 10242 break; 10243 } 10244 } 10245 10246 ctl_set_success(ctsio); 10247 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10248 ctsio->be_move_done = ctl_config_move_done; 10249 ctl_datamove((union ctl_io *)ctsio); 10250 return (CTL_RETVAL_COMPLETE); 10251} 10252 10253int 10254ctl_inquiry(struct ctl_scsiio *ctsio) 10255{ 10256 struct scsi_inquiry *cdb; 10257 int retval; 10258 10259 CTL_DEBUG_PRINT(("ctl_inquiry\n")); 10260 10261 cdb = (struct scsi_inquiry *)ctsio->cdb; 10262 if (cdb->byte2 & SI_EVPD) 10263 retval = ctl_inquiry_evpd(ctsio); 10264 else if (cdb->page_code == 0) 10265 retval = ctl_inquiry_std(ctsio); 10266 else { 10267 ctl_set_invalid_field(ctsio, 10268 /*sks_valid*/ 1, 10269 /*command*/ 1, 10270 /*field*/ 2, 10271 /*bit_valid*/ 0, 10272 /*bit*/ 0); 10273 ctl_done((union ctl_io *)ctsio); 10274 return (CTL_RETVAL_COMPLETE); 10275 } 10276 10277 return (retval); 10278} 10279 10280int 10281ctl_get_config(struct ctl_scsiio *ctsio) 10282{ 10283 struct ctl_lun *lun = CTL_LUN(ctsio); 10284 struct scsi_get_config_header *hdr; 10285 struct scsi_get_config_feature *feature; 10286 struct scsi_get_config *cdb; 10287 uint32_t alloc_len, data_len; 10288 int rt, starting; 10289 10290 cdb = (struct scsi_get_config *)ctsio->cdb; 10291 rt = (cdb->rt & SGC_RT_MASK); 10292 starting = scsi_2btoul(cdb->starting_feature); 10293 alloc_len = scsi_2btoul(cdb->length); 10294 10295 data_len = sizeof(struct scsi_get_config_header) + 10296 sizeof(struct scsi_get_config_feature) + 8 + 10297 sizeof(struct scsi_get_config_feature) + 8 + 10298 sizeof(struct scsi_get_config_feature) + 4 + 10299 sizeof(struct scsi_get_config_feature) + 4 + 10300 sizeof(struct scsi_get_config_feature) + 8 + 10301 sizeof(struct scsi_get_config_feature) + 10302 sizeof(struct scsi_get_config_feature) + 4 + 10303 sizeof(struct scsi_get_config_feature) + 4 + 10304 sizeof(struct scsi_get_config_feature) + 4 + 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 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 10309 ctsio->kern_sg_entries = 0; 10310 ctsio->kern_data_resid = 0; 10311 ctsio->kern_rel_offset = 0; 10312 10313 hdr = (struct scsi_get_config_header *)ctsio->kern_data_ptr; 10314 if (lun->flags & CTL_LUN_NO_MEDIA) 10315 scsi_ulto2b(0x0000, hdr->current_profile); 10316 else 10317 scsi_ulto2b(0x0010, hdr->current_profile); 10318 feature = (struct scsi_get_config_feature *)(hdr + 1); 10319 10320 if (starting > 0x003b) 10321 goto done; 10322 if (starting > 0x003a) 10323 goto f3b; 10324 if (starting > 0x002b) 10325 goto f3a; 10326 if (starting > 0x002a) 10327 goto f2b; 10328 if (starting > 0x001f) 10329 goto f2a; 10330 if (starting > 0x001e) 10331 goto f1f; 10332 if (starting > 0x001d) 10333 goto f1e; 10334 if (starting > 0x0010) 10335 goto f1d; 10336 if (starting > 0x0003) 10337 goto f10; 10338 if (starting > 0x0002) 10339 goto f3; 10340 if (starting > 0x0001) 10341 goto f2; 10342 if (starting > 0x0000) 10343 goto f1; 10344 10345 /* Profile List */ 10346 scsi_ulto2b(0x0000, feature->feature_code); 10347 feature->flags = SGC_F_PERSISTENT | SGC_F_CURRENT; 10348 feature->add_length = 8; 10349 scsi_ulto2b(0x0008, &feature->feature_data[0]); /* CD-ROM */ 10350 feature->feature_data[2] = 0x00; 10351 scsi_ulto2b(0x0010, &feature->feature_data[4]); /* DVD-ROM */ 10352 feature->feature_data[6] = 0x01; 10353 feature = (struct scsi_get_config_feature *) 10354 &feature->feature_data[feature->add_length]; 10355 10356f1: /* Core */ 10357 scsi_ulto2b(0x0001, feature->feature_code); 10358 feature->flags = 0x08 | SGC_F_PERSISTENT | SGC_F_CURRENT; 10359 feature->add_length = 8; 10360 scsi_ulto4b(0x00000000, &feature->feature_data[0]); 10361 feature->feature_data[4] = 0x03; 10362 feature = (struct scsi_get_config_feature *) 10363 &feature->feature_data[feature->add_length]; 10364 10365f2: /* Morphing */ 10366 scsi_ulto2b(0x0002, feature->feature_code); 10367 feature->flags = 0x04 | SGC_F_PERSISTENT | SGC_F_CURRENT; 10368 feature->add_length = 4; 10369 feature->feature_data[0] = 0x02; 10370 feature = (struct scsi_get_config_feature *) 10371 &feature->feature_data[feature->add_length]; 10372 10373f3: /* Removable Medium */ 10374 scsi_ulto2b(0x0003, feature->feature_code); 10375 feature->flags = 0x04 | SGC_F_PERSISTENT | SGC_F_CURRENT; 10376 feature->add_length = 4; 10377 feature->feature_data[0] = 0x39; 10378 feature = (struct scsi_get_config_feature *) 10379 &feature->feature_data[feature->add_length]; 10380 10381 if (rt == SGC_RT_CURRENT && (lun->flags & CTL_LUN_NO_MEDIA)) 10382 goto done; 10383 10384f10: /* Random Read */ 10385 scsi_ulto2b(0x0010, feature->feature_code); 10386 feature->flags = 0x00; 10387 if ((lun->flags & CTL_LUN_NO_MEDIA) == 0) 10388 feature->flags |= SGC_F_CURRENT; 10389 feature->add_length = 8; 10390 scsi_ulto4b(lun->be_lun->blocksize, &feature->feature_data[0]); 10391 scsi_ulto2b(1, &feature->feature_data[4]); 10392 feature->feature_data[6] = 0x00; 10393 feature = (struct scsi_get_config_feature *) 10394 &feature->feature_data[feature->add_length]; 10395 10396f1d: /* Multi-Read */ 10397 scsi_ulto2b(0x001D, feature->feature_code); 10398 feature->flags = 0x00; 10399 if ((lun->flags & CTL_LUN_NO_MEDIA) == 0) 10400 feature->flags |= SGC_F_CURRENT; 10401 feature->add_length = 0; 10402 feature = (struct scsi_get_config_feature *) 10403 &feature->feature_data[feature->add_length]; 10404 10405f1e: /* CD Read */ 10406 scsi_ulto2b(0x001E, feature->feature_code); 10407 feature->flags = 0x00; 10408 if ((lun->flags & CTL_LUN_NO_MEDIA) == 0) 10409 feature->flags |= SGC_F_CURRENT; 10410 feature->add_length = 4; 10411 feature->feature_data[0] = 0x00; 10412 feature = (struct scsi_get_config_feature *) 10413 &feature->feature_data[feature->add_length]; 10414 10415f1f: /* DVD Read */ 10416 scsi_ulto2b(0x001F, feature->feature_code); 10417 feature->flags = 0x08; 10418 if ((lun->flags & CTL_LUN_NO_MEDIA) == 0) 10419 feature->flags |= SGC_F_CURRENT; 10420 feature->add_length = 4; 10421 feature->feature_data[0] = 0x01; 10422 feature->feature_data[2] = 0x03; 10423 feature = (struct scsi_get_config_feature *) 10424 &feature->feature_data[feature->add_length]; 10425 10426f2a: /* DVD+RW */ 10427 scsi_ulto2b(0x002A, feature->feature_code); 10428 feature->flags = 0x04; 10429 if ((lun->flags & CTL_LUN_NO_MEDIA) == 0) 10430 feature->flags |= SGC_F_CURRENT; 10431 feature->add_length = 4; 10432 feature->feature_data[0] = 0x00; 10433 feature->feature_data[1] = 0x00; 10434 feature = (struct scsi_get_config_feature *) 10435 &feature->feature_data[feature->add_length]; 10436 10437f2b: /* DVD+R */ 10438 scsi_ulto2b(0x002B, feature->feature_code); 10439 feature->flags = 0x00; 10440 if ((lun->flags & CTL_LUN_NO_MEDIA) == 0) 10441 feature->flags |= SGC_F_CURRENT; 10442 feature->add_length = 4; 10443 feature->feature_data[0] = 0x00; 10444 feature = (struct scsi_get_config_feature *) 10445 &feature->feature_data[feature->add_length]; 10446 10447f3a: /* DVD+RW Dual Layer */ 10448 scsi_ulto2b(0x003A, feature->feature_code); 10449 feature->flags = 0x00; 10450 if ((lun->flags & CTL_LUN_NO_MEDIA) == 0) 10451 feature->flags |= SGC_F_CURRENT; 10452 feature->add_length = 4; 10453 feature->feature_data[0] = 0x00; 10454 feature->feature_data[1] = 0x00; 10455 feature = (struct scsi_get_config_feature *) 10456 &feature->feature_data[feature->add_length]; 10457 10458f3b: /* DVD+R Dual Layer */ 10459 scsi_ulto2b(0x003B, feature->feature_code); 10460 feature->flags = 0x00; 10461 if ((lun->flags & CTL_LUN_NO_MEDIA) == 0) 10462 feature->flags |= SGC_F_CURRENT; 10463 feature->add_length = 4; 10464 feature->feature_data[0] = 0x00; 10465 feature = (struct scsi_get_config_feature *) 10466 &feature->feature_data[feature->add_length]; 10467 10468done: 10469 data_len = (uint8_t *)feature - (uint8_t *)hdr; 10470 if (rt == SGC_RT_SPECIFIC && data_len > 4) { 10471 feature = (struct scsi_get_config_feature *)(hdr + 1); 10472 if (scsi_2btoul(feature->feature_code) == starting) 10473 feature = (struct scsi_get_config_feature *) 10474 &feature->feature_data[feature->add_length]; 10475 data_len = (uint8_t *)feature - (uint8_t *)hdr; 10476 } 10477 scsi_ulto4b(data_len - 4, hdr->data_length); 10478 if (data_len < alloc_len) { 10479 ctsio->residual = alloc_len - data_len; 10480 ctsio->kern_data_len = data_len; 10481 ctsio->kern_total_len = data_len; 10482 } else { 10483 ctsio->residual = 0; 10484 ctsio->kern_data_len = alloc_len; 10485 ctsio->kern_total_len = alloc_len; 10486 } 10487 10488 ctl_set_success(ctsio); 10489 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10490 ctsio->be_move_done = ctl_config_move_done; 10491 ctl_datamove((union ctl_io *)ctsio); 10492 return (CTL_RETVAL_COMPLETE); 10493} 10494 10495int 10496ctl_get_event_status(struct ctl_scsiio *ctsio) 10497{ 10498 struct scsi_get_event_status_header *hdr; 10499 struct scsi_get_event_status *cdb; 10500 uint32_t alloc_len, data_len; 10501 int notif_class; 10502 10503 cdb = (struct scsi_get_event_status *)ctsio->cdb; 10504 if ((cdb->byte2 & SGESN_POLLED) == 0) { 10505 ctl_set_invalid_field(ctsio, /*sks_valid*/ 1, /*command*/ 1, 10506 /*field*/ 1, /*bit_valid*/ 1, /*bit*/ 0); 10507 ctl_done((union ctl_io *)ctsio); 10508 return (CTL_RETVAL_COMPLETE); 10509 } 10510 notif_class = cdb->notif_class; 10511 alloc_len = scsi_2btoul(cdb->length); 10512 10513 data_len = sizeof(struct scsi_get_event_status_header); 10514 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 10515 ctsio->kern_sg_entries = 0; 10516 ctsio->kern_data_resid = 0; 10517 ctsio->kern_rel_offset = 0; 10518 10519 if (data_len < alloc_len) { 10520 ctsio->residual = alloc_len - data_len; 10521 ctsio->kern_data_len = data_len; 10522 ctsio->kern_total_len = data_len; 10523 } else { 10524 ctsio->residual = 0; 10525 ctsio->kern_data_len = alloc_len; 10526 ctsio->kern_total_len = alloc_len; 10527 } 10528 10529 hdr = (struct scsi_get_event_status_header *)ctsio->kern_data_ptr; 10530 scsi_ulto2b(0, hdr->descr_length); 10531 hdr->nea_class = SGESN_NEA; 10532 hdr->supported_class = 0; 10533 10534 ctl_set_success(ctsio); 10535 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10536 ctsio->be_move_done = ctl_config_move_done; 10537 ctl_datamove((union ctl_io *)ctsio); 10538 return (CTL_RETVAL_COMPLETE); 10539} 10540 10541int 10542ctl_mechanism_status(struct ctl_scsiio *ctsio) 10543{ 10544 struct scsi_mechanism_status_header *hdr; 10545 struct scsi_mechanism_status *cdb; 10546 uint32_t alloc_len, data_len; 10547 10548 cdb = (struct scsi_mechanism_status *)ctsio->cdb; 10549 alloc_len = scsi_2btoul(cdb->length); 10550 10551 data_len = sizeof(struct scsi_mechanism_status_header); 10552 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 10553 ctsio->kern_sg_entries = 0; 10554 ctsio->kern_data_resid = 0; 10555 ctsio->kern_rel_offset = 0; 10556 10557 if (data_len < alloc_len) { 10558 ctsio->residual = alloc_len - data_len; 10559 ctsio->kern_data_len = data_len; 10560 ctsio->kern_total_len = data_len; 10561 } else { 10562 ctsio->residual = 0; 10563 ctsio->kern_data_len = alloc_len; 10564 ctsio->kern_total_len = alloc_len; 10565 } 10566 10567 hdr = (struct scsi_mechanism_status_header *)ctsio->kern_data_ptr; 10568 hdr->state1 = 0x00; 10569 hdr->state2 = 0xe0; 10570 scsi_ulto3b(0, hdr->lba); 10571 hdr->slots_num = 0; 10572 scsi_ulto2b(0, hdr->slots_length); 10573 10574 ctl_set_success(ctsio); 10575 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10576 ctsio->be_move_done = ctl_config_move_done; 10577 ctl_datamove((union ctl_io *)ctsio); 10578 return (CTL_RETVAL_COMPLETE); 10579} 10580 10581static void 10582ctl_ultomsf(uint32_t lba, uint8_t *buf) 10583{ 10584 10585 lba += 150; 10586 buf[0] = 0; 10587 buf[1] = bin2bcd((lba / 75) / 60); 10588 buf[2] = bin2bcd((lba / 75) % 60); 10589 buf[3] = bin2bcd(lba % 75); 10590} 10591 10592int 10593ctl_read_toc(struct ctl_scsiio *ctsio) 10594{ 10595 struct ctl_lun *lun = CTL_LUN(ctsio); 10596 struct scsi_read_toc_hdr *hdr; 10597 struct scsi_read_toc_type01_descr *descr; 10598 struct scsi_read_toc *cdb; 10599 uint32_t alloc_len, data_len; 10600 int format, msf; 10601 10602 cdb = (struct scsi_read_toc *)ctsio->cdb; 10603 msf = (cdb->byte2 & CD_MSF) != 0; 10604 format = cdb->format; 10605 alloc_len = scsi_2btoul(cdb->data_len); 10606 10607 data_len = sizeof(struct scsi_read_toc_hdr); 10608 if (format == 0) 10609 data_len += 2 * sizeof(struct scsi_read_toc_type01_descr); 10610 else 10611 data_len += sizeof(struct scsi_read_toc_type01_descr); 10612 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 10613 ctsio->kern_sg_entries = 0; 10614 ctsio->kern_data_resid = 0; 10615 ctsio->kern_rel_offset = 0; 10616 10617 if (data_len < alloc_len) { 10618 ctsio->residual = alloc_len - data_len; 10619 ctsio->kern_data_len = data_len; 10620 ctsio->kern_total_len = data_len; 10621 } else { 10622 ctsio->residual = 0; 10623 ctsio->kern_data_len = alloc_len; 10624 ctsio->kern_total_len = alloc_len; 10625 } 10626 10627 hdr = (struct scsi_read_toc_hdr *)ctsio->kern_data_ptr; 10628 if (format == 0) { 10629 scsi_ulto2b(0x12, hdr->data_length); 10630 hdr->first = 1; 10631 hdr->last = 1; 10632 descr = (struct scsi_read_toc_type01_descr *)(hdr + 1); 10633 descr->addr_ctl = 0x14; 10634 descr->track_number = 1; 10635 if (msf) 10636 ctl_ultomsf(0, descr->track_start); 10637 else 10638 scsi_ulto4b(0, descr->track_start); 10639 descr++; 10640 descr->addr_ctl = 0x14; 10641 descr->track_number = 0xaa; 10642 if (msf) 10643 ctl_ultomsf(lun->be_lun->maxlba+1, descr->track_start); 10644 else 10645 scsi_ulto4b(lun->be_lun->maxlba+1, descr->track_start); 10646 } else { 10647 scsi_ulto2b(0x0a, hdr->data_length); 10648 hdr->first = 1; 10649 hdr->last = 1; 10650 descr = (struct scsi_read_toc_type01_descr *)(hdr + 1); 10651 descr->addr_ctl = 0x14; 10652 descr->track_number = 1; 10653 if (msf) 10654 ctl_ultomsf(0, descr->track_start); 10655 else 10656 scsi_ulto4b(0, descr->track_start); 10657 } 10658 10659 ctl_set_success(ctsio); 10660 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10661 ctsio->be_move_done = ctl_config_move_done; 10662 ctl_datamove((union ctl_io *)ctsio); 10663 return (CTL_RETVAL_COMPLETE); 10664} 10665 10666/* 10667 * For known CDB types, parse the LBA and length. 10668 */ 10669static int 10670ctl_get_lba_len(union ctl_io *io, uint64_t *lba, uint64_t *len) 10671{ 10672 if (io->io_hdr.io_type != CTL_IO_SCSI) 10673 return (1); 10674 10675 switch (io->scsiio.cdb[0]) { 10676 case COMPARE_AND_WRITE: { 10677 struct scsi_compare_and_write *cdb; 10678 10679 cdb = (struct scsi_compare_and_write *)io->scsiio.cdb; 10680 10681 *lba = scsi_8btou64(cdb->addr); 10682 *len = cdb->length; 10683 break; 10684 } 10685 case READ_6: 10686 case WRITE_6: { 10687 struct scsi_rw_6 *cdb; 10688 10689 cdb = (struct scsi_rw_6 *)io->scsiio.cdb; 10690 10691 *lba = scsi_3btoul(cdb->addr); 10692 /* only 5 bits are valid in the most significant address byte */ 10693 *lba &= 0x1fffff; 10694 *len = cdb->length; 10695 break; 10696 } 10697 case READ_10: 10698 case WRITE_10: { 10699 struct scsi_rw_10 *cdb; 10700 10701 cdb = (struct scsi_rw_10 *)io->scsiio.cdb; 10702 10703 *lba = scsi_4btoul(cdb->addr); 10704 *len = scsi_2btoul(cdb->length); 10705 break; 10706 } 10707 case WRITE_VERIFY_10: { 10708 struct scsi_write_verify_10 *cdb; 10709 10710 cdb = (struct scsi_write_verify_10 *)io->scsiio.cdb; 10711 10712 *lba = scsi_4btoul(cdb->addr); 10713 *len = scsi_2btoul(cdb->length); 10714 break; 10715 } 10716 case READ_12: 10717 case WRITE_12: { 10718 struct scsi_rw_12 *cdb; 10719 10720 cdb = (struct scsi_rw_12 *)io->scsiio.cdb; 10721 10722 *lba = scsi_4btoul(cdb->addr); 10723 *len = scsi_4btoul(cdb->length); 10724 break; 10725 } 10726 case WRITE_VERIFY_12: { 10727 struct scsi_write_verify_12 *cdb; 10728 10729 cdb = (struct scsi_write_verify_12 *)io->scsiio.cdb; 10730 10731 *lba = scsi_4btoul(cdb->addr); 10732 *len = scsi_4btoul(cdb->length); 10733 break; 10734 } 10735 case READ_16: 10736 case WRITE_16: { 10737 struct scsi_rw_16 *cdb; 10738 10739 cdb = (struct scsi_rw_16 *)io->scsiio.cdb; 10740 10741 *lba = scsi_8btou64(cdb->addr); 10742 *len = scsi_4btoul(cdb->length); 10743 break; 10744 } 10745 case WRITE_ATOMIC_16: { 10746 struct scsi_write_atomic_16 *cdb; 10747 10748 cdb = (struct scsi_write_atomic_16 *)io->scsiio.cdb; 10749 10750 *lba = scsi_8btou64(cdb->addr); 10751 *len = scsi_2btoul(cdb->length); 10752 break; 10753 } 10754 case WRITE_VERIFY_16: { 10755 struct scsi_write_verify_16 *cdb; 10756 10757 cdb = (struct scsi_write_verify_16 *)io->scsiio.cdb; 10758 10759 *lba = scsi_8btou64(cdb->addr); 10760 *len = scsi_4btoul(cdb->length); 10761 break; 10762 } 10763 case WRITE_SAME_10: { 10764 struct scsi_write_same_10 *cdb; 10765 10766 cdb = (struct scsi_write_same_10 *)io->scsiio.cdb; 10767 10768 *lba = scsi_4btoul(cdb->addr); 10769 *len = scsi_2btoul(cdb->length); 10770 break; 10771 } 10772 case WRITE_SAME_16: { 10773 struct scsi_write_same_16 *cdb; 10774 10775 cdb = (struct scsi_write_same_16 *)io->scsiio.cdb; 10776 10777 *lba = scsi_8btou64(cdb->addr); 10778 *len = scsi_4btoul(cdb->length); 10779 break; 10780 } 10781 case VERIFY_10: { 10782 struct scsi_verify_10 *cdb; 10783 10784 cdb = (struct scsi_verify_10 *)io->scsiio.cdb; 10785 10786 *lba = scsi_4btoul(cdb->addr); 10787 *len = scsi_2btoul(cdb->length); 10788 break; 10789 } 10790 case VERIFY_12: { 10791 struct scsi_verify_12 *cdb; 10792 10793 cdb = (struct scsi_verify_12 *)io->scsiio.cdb; 10794 10795 *lba = scsi_4btoul(cdb->addr); 10796 *len = scsi_4btoul(cdb->length); 10797 break; 10798 } 10799 case VERIFY_16: { 10800 struct scsi_verify_16 *cdb; 10801 10802 cdb = (struct scsi_verify_16 *)io->scsiio.cdb; 10803 10804 *lba = scsi_8btou64(cdb->addr); 10805 *len = scsi_4btoul(cdb->length); 10806 break; 10807 } 10808 case UNMAP: { 10809 *lba = 0; 10810 *len = UINT64_MAX; 10811 break; 10812 } 10813 case SERVICE_ACTION_IN: { /* GET LBA STATUS */ 10814 struct scsi_get_lba_status *cdb; 10815 10816 cdb = (struct scsi_get_lba_status *)io->scsiio.cdb; 10817 *lba = scsi_8btou64(cdb->addr); 10818 *len = UINT32_MAX; 10819 break; 10820 } 10821 default: 10822 return (1); 10823 break; /* NOTREACHED */ 10824 } 10825 10826 return (0); 10827} 10828 10829static ctl_action 10830ctl_extent_check_lba(uint64_t lba1, uint64_t len1, uint64_t lba2, uint64_t len2, 10831 bool seq) 10832{ 10833 uint64_t endlba1, endlba2; 10834 10835 endlba1 = lba1 + len1 - (seq ? 0 : 1); 10836 endlba2 = lba2 + len2 - 1; 10837 10838 if ((endlba1 < lba2) || (endlba2 < lba1)) 10839 return (CTL_ACTION_PASS); 10840 else 10841 return (CTL_ACTION_BLOCK); 10842} 10843 10844static int 10845ctl_extent_check_unmap(union ctl_io *io, uint64_t lba2, uint64_t len2) 10846{ 10847 struct ctl_ptr_len_flags *ptrlen; 10848 struct scsi_unmap_desc *buf, *end, *range; 10849 uint64_t lba; 10850 uint32_t len; 10851 10852 /* If not UNMAP -- go other way. */ 10853 if (io->io_hdr.io_type != CTL_IO_SCSI || 10854 io->scsiio.cdb[0] != UNMAP) 10855 return (CTL_ACTION_ERROR); 10856 10857 /* If UNMAP without data -- block and wait for data. */ 10858 ptrlen = (struct ctl_ptr_len_flags *) 10859 &io->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 10860 if ((io->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0 || 10861 ptrlen->ptr == NULL) 10862 return (CTL_ACTION_BLOCK); 10863 10864 /* UNMAP with data -- check for collision. */ 10865 buf = (struct scsi_unmap_desc *)ptrlen->ptr; 10866 end = buf + ptrlen->len / sizeof(*buf); 10867 for (range = buf; range < end; range++) { 10868 lba = scsi_8btou64(range->lba); 10869 len = scsi_4btoul(range->length); 10870 if ((lba < lba2 + len2) && (lba + len > lba2)) 10871 return (CTL_ACTION_BLOCK); 10872 } 10873 return (CTL_ACTION_PASS); 10874} 10875 10876static ctl_action 10877ctl_extent_check(union ctl_io *io1, union ctl_io *io2, bool seq) 10878{ 10879 uint64_t lba1, lba2; 10880 uint64_t len1, len2; 10881 int retval; 10882 10883 if (ctl_get_lba_len(io2, &lba2, &len2) != 0) 10884 return (CTL_ACTION_ERROR); 10885 10886 retval = ctl_extent_check_unmap(io1, lba2, len2); 10887 if (retval != CTL_ACTION_ERROR) 10888 return (retval); 10889 10890 if (ctl_get_lba_len(io1, &lba1, &len1) != 0) 10891 return (CTL_ACTION_ERROR); 10892 10893 if (io1->io_hdr.flags & CTL_FLAG_SERSEQ_DONE) 10894 seq = FALSE; 10895 return (ctl_extent_check_lba(lba1, len1, lba2, len2, seq)); 10896} 10897 10898static ctl_action 10899ctl_extent_check_seq(union ctl_io *io1, union ctl_io *io2) 10900{ 10901 uint64_t lba1, lba2; 10902 uint64_t len1, len2; 10903 10904 if (io1->io_hdr.flags & CTL_FLAG_SERSEQ_DONE) 10905 return (CTL_ACTION_PASS); 10906 if (ctl_get_lba_len(io1, &lba1, &len1) != 0) 10907 return (CTL_ACTION_ERROR); 10908 if (ctl_get_lba_len(io2, &lba2, &len2) != 0) 10909 return (CTL_ACTION_ERROR); 10910 10911 if (lba1 + len1 == lba2) 10912 return (CTL_ACTION_BLOCK); 10913 return (CTL_ACTION_PASS); 10914} 10915 10916static ctl_action 10917ctl_check_for_blockage(struct ctl_lun *lun, union ctl_io *pending_io, 10918 union ctl_io *ooa_io) 10919{ 10920 const struct ctl_cmd_entry *pending_entry, *ooa_entry; 10921 const ctl_serialize_action *serialize_row; 10922 10923 /* 10924 * The initiator attempted multiple untagged commands at the same 10925 * time. Can't do that. 10926 */ 10927 if ((pending_io->scsiio.tag_type == CTL_TAG_UNTAGGED) 10928 && (ooa_io->scsiio.tag_type == CTL_TAG_UNTAGGED) 10929 && ((pending_io->io_hdr.nexus.targ_port == 10930 ooa_io->io_hdr.nexus.targ_port) 10931 && (pending_io->io_hdr.nexus.initid == 10932 ooa_io->io_hdr.nexus.initid)) 10933 && ((ooa_io->io_hdr.flags & (CTL_FLAG_ABORT | 10934 CTL_FLAG_STATUS_SENT)) == 0)) 10935 return (CTL_ACTION_OVERLAP); 10936 10937 /* 10938 * The initiator attempted to send multiple tagged commands with 10939 * the same ID. (It's fine if different initiators have the same 10940 * tag ID.) 10941 * 10942 * Even if all of those conditions are true, we don't kill the I/O 10943 * if the command ahead of us has been aborted. We won't end up 10944 * sending it to the FETD, and it's perfectly legal to resend a 10945 * command with the same tag number as long as the previous 10946 * instance of this tag number has been aborted somehow. 10947 */ 10948 if ((pending_io->scsiio.tag_type != CTL_TAG_UNTAGGED) 10949 && (ooa_io->scsiio.tag_type != CTL_TAG_UNTAGGED) 10950 && (pending_io->scsiio.tag_num == ooa_io->scsiio.tag_num) 10951 && ((pending_io->io_hdr.nexus.targ_port == 10952 ooa_io->io_hdr.nexus.targ_port) 10953 && (pending_io->io_hdr.nexus.initid == 10954 ooa_io->io_hdr.nexus.initid)) 10955 && ((ooa_io->io_hdr.flags & (CTL_FLAG_ABORT | 10956 CTL_FLAG_STATUS_SENT)) == 0)) 10957 return (CTL_ACTION_OVERLAP_TAG); 10958 10959 /* 10960 * If we get a head of queue tag, SAM-3 says that we should 10961 * immediately execute it. 10962 * 10963 * What happens if this command would normally block for some other 10964 * reason? e.g. a request sense with a head of queue tag 10965 * immediately after a write. Normally that would block, but this 10966 * will result in its getting executed immediately... 10967 * 10968 * We currently return "pass" instead of "skip", so we'll end up 10969 * going through the rest of the queue to check for overlapped tags. 10970 * 10971 * XXX KDM check for other types of blockage first?? 10972 */ 10973 if (pending_io->scsiio.tag_type == CTL_TAG_HEAD_OF_QUEUE) 10974 return (CTL_ACTION_PASS); 10975 10976 /* 10977 * Ordered tags have to block until all items ahead of them 10978 * have completed. If we get called with an ordered tag, we always 10979 * block, if something else is ahead of us in the queue. 10980 */ 10981 if (pending_io->scsiio.tag_type == CTL_TAG_ORDERED) 10982 return (CTL_ACTION_BLOCK); 10983 10984 /* 10985 * Simple tags get blocked until all head of queue and ordered tags 10986 * ahead of them have completed. I'm lumping untagged commands in 10987 * with simple tags here. XXX KDM is that the right thing to do? 10988 */ 10989 if (((pending_io->scsiio.tag_type == CTL_TAG_UNTAGGED) 10990 || (pending_io->scsiio.tag_type == CTL_TAG_SIMPLE)) 10991 && ((ooa_io->scsiio.tag_type == CTL_TAG_HEAD_OF_QUEUE) 10992 || (ooa_io->scsiio.tag_type == CTL_TAG_ORDERED))) 10993 return (CTL_ACTION_BLOCK); 10994 10995 pending_entry = ctl_get_cmd_entry(&pending_io->scsiio, NULL); 10996 KASSERT(pending_entry->seridx < CTL_SERIDX_COUNT, 10997 ("%s: Invalid seridx %d for pending CDB %02x %02x @ %p", 10998 __func__, pending_entry->seridx, pending_io->scsiio.cdb[0], 10999 pending_io->scsiio.cdb[1], pending_io)); 11000 ooa_entry = ctl_get_cmd_entry(&ooa_io->scsiio, NULL); 11001 if (ooa_entry->seridx == CTL_SERIDX_INVLD) 11002 return (CTL_ACTION_PASS); /* Unsupported command in OOA queue */ 11003 KASSERT(ooa_entry->seridx < CTL_SERIDX_COUNT, 11004 ("%s: Invalid seridx %d for ooa CDB %02x %02x @ %p", 11005 __func__, ooa_entry->seridx, ooa_io->scsiio.cdb[0], 11006 ooa_io->scsiio.cdb[1], ooa_io)); 11007 11008 serialize_row = ctl_serialize_table[ooa_entry->seridx]; 11009 11010 switch (serialize_row[pending_entry->seridx]) { 11011 case CTL_SER_BLOCK: 11012 return (CTL_ACTION_BLOCK); 11013 case CTL_SER_EXTENT: 11014 return (ctl_extent_check(ooa_io, pending_io, 11015 (lun->be_lun && lun->be_lun->serseq == CTL_LUN_SERSEQ_ON))); 11016 case CTL_SER_EXTENTOPT: 11017 if ((lun->MODE_CTRL.queue_flags & SCP_QUEUE_ALG_MASK) != 11018 SCP_QUEUE_ALG_UNRESTRICTED) 11019 return (ctl_extent_check(ooa_io, pending_io, 11020 (lun->be_lun && 11021 lun->be_lun->serseq == CTL_LUN_SERSEQ_ON))); 11022 return (CTL_ACTION_PASS); 11023 case CTL_SER_EXTENTSEQ: 11024 if (lun->be_lun && lun->be_lun->serseq != CTL_LUN_SERSEQ_OFF) 11025 return (ctl_extent_check_seq(ooa_io, pending_io)); 11026 return (CTL_ACTION_PASS); 11027 case CTL_SER_PASS: 11028 return (CTL_ACTION_PASS); 11029 case CTL_SER_BLOCKOPT: 11030 if ((lun->MODE_CTRL.queue_flags & SCP_QUEUE_ALG_MASK) != 11031 SCP_QUEUE_ALG_UNRESTRICTED) 11032 return (CTL_ACTION_BLOCK); 11033 return (CTL_ACTION_PASS); 11034 case CTL_SER_SKIP: 11035 return (CTL_ACTION_SKIP); 11036 default: 11037 panic("%s: Invalid serialization value %d for %d => %d", 11038 __func__, serialize_row[pending_entry->seridx], 11039 pending_entry->seridx, ooa_entry->seridx); 11040 } 11041 11042 return (CTL_ACTION_ERROR); 11043} 11044 11045/* 11046 * Check for blockage or overlaps against the OOA (Order Of Arrival) queue. 11047 * Assumptions: 11048 * - pending_io is generally either incoming, or on the blocked queue 11049 * - starting I/O is the I/O we want to start the check with. 11050 */ 11051static ctl_action 11052ctl_check_ooa(struct ctl_lun *lun, union ctl_io *pending_io, 11053 union ctl_io *starting_io) 11054{ 11055 union ctl_io *ooa_io; 11056 ctl_action action; 11057 11058 mtx_assert(&lun->lun_lock, MA_OWNED); 11059 11060 /* 11061 * Run back along the OOA queue, starting with the current 11062 * blocked I/O and going through every I/O before it on the 11063 * queue. If starting_io is NULL, we'll just end up returning 11064 * CTL_ACTION_PASS. 11065 */ 11066 for (ooa_io = starting_io; ooa_io != NULL; 11067 ooa_io = (union ctl_io *)TAILQ_PREV(&ooa_io->io_hdr, ctl_ooaq, 11068 ooa_links)){ 11069 11070 /* 11071 * This routine just checks to see whether 11072 * cur_blocked is blocked by ooa_io, which is ahead 11073 * of it in the queue. It doesn't queue/dequeue 11074 * cur_blocked. 11075 */ 11076 action = ctl_check_for_blockage(lun, pending_io, ooa_io); 11077 switch (action) { 11078 case CTL_ACTION_BLOCK: 11079 case CTL_ACTION_OVERLAP: 11080 case CTL_ACTION_OVERLAP_TAG: 11081 case CTL_ACTION_SKIP: 11082 case CTL_ACTION_ERROR: 11083 return (action); 11084 break; /* NOTREACHED */ 11085 case CTL_ACTION_PASS: 11086 break; 11087 default: 11088 panic("%s: Invalid action %d\n", __func__, action); 11089 } 11090 } 11091 11092 return (CTL_ACTION_PASS); 11093} 11094 11095/* 11096 * Assumptions: 11097 * - An I/O has just completed, and has been removed from the per-LUN OOA 11098 * queue, so some items on the blocked queue may now be unblocked. 11099 */ 11100static int 11101ctl_check_blocked(struct ctl_lun *lun) 11102{ 11103 struct ctl_softc *softc = lun->ctl_softc; 11104 union ctl_io *cur_blocked, *next_blocked; 11105 11106 mtx_assert(&lun->lun_lock, MA_OWNED); 11107 11108 /* 11109 * Run forward from the head of the blocked queue, checking each 11110 * entry against the I/Os prior to it on the OOA queue to see if 11111 * there is still any blockage. 11112 * 11113 * We cannot use the TAILQ_FOREACH() macro, because it can't deal 11114 * with our removing a variable on it while it is traversing the 11115 * list. 11116 */ 11117 for (cur_blocked = (union ctl_io *)TAILQ_FIRST(&lun->blocked_queue); 11118 cur_blocked != NULL; cur_blocked = next_blocked) { 11119 union ctl_io *prev_ooa; 11120 ctl_action action; 11121 11122 next_blocked = (union ctl_io *)TAILQ_NEXT(&cur_blocked->io_hdr, 11123 blocked_links); 11124 11125 prev_ooa = (union ctl_io *)TAILQ_PREV(&cur_blocked->io_hdr, 11126 ctl_ooaq, ooa_links); 11127 11128 /* 11129 * If cur_blocked happens to be the first item in the OOA 11130 * queue now, prev_ooa will be NULL, and the action 11131 * returned will just be CTL_ACTION_PASS. 11132 */ 11133 action = ctl_check_ooa(lun, cur_blocked, prev_ooa); 11134 11135 switch (action) { 11136 case CTL_ACTION_BLOCK: 11137 /* Nothing to do here, still blocked */ 11138 break; 11139 case CTL_ACTION_OVERLAP: 11140 case CTL_ACTION_OVERLAP_TAG: 11141 /* 11142 * This shouldn't happen! In theory we've already 11143 * checked this command for overlap... 11144 */ 11145 break; 11146 case CTL_ACTION_PASS: 11147 case CTL_ACTION_SKIP: { 11148 const struct ctl_cmd_entry *entry; 11149 11150 /* 11151 * The skip case shouldn't happen, this transaction 11152 * should have never made it onto the blocked queue. 11153 */ 11154 /* 11155 * This I/O is no longer blocked, we can remove it 11156 * from the blocked queue. Since this is a TAILQ 11157 * (doubly linked list), we can do O(1) removals 11158 * from any place on the list. 11159 */ 11160 TAILQ_REMOVE(&lun->blocked_queue, &cur_blocked->io_hdr, 11161 blocked_links); 11162 cur_blocked->io_hdr.flags &= ~CTL_FLAG_BLOCKED; 11163 11164 if ((softc->ha_mode != CTL_HA_MODE_XFER) && 11165 (cur_blocked->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)){ 11166 /* 11167 * Need to send IO back to original side to 11168 * run 11169 */ 11170 union ctl_ha_msg msg_info; 11171 11172 cur_blocked->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 11173 msg_info.hdr.original_sc = 11174 cur_blocked->io_hdr.original_sc; 11175 msg_info.hdr.serializing_sc = cur_blocked; 11176 msg_info.hdr.msg_type = CTL_MSG_R2R; 11177 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 11178 sizeof(msg_info.hdr), M_NOWAIT); 11179 break; 11180 } 11181 entry = ctl_get_cmd_entry(&cur_blocked->scsiio, NULL); 11182 11183 /* 11184 * Check this I/O for LUN state changes that may 11185 * have happened while this command was blocked. 11186 * The LUN state may have been changed by a command 11187 * ahead of us in the queue, so we need to re-check 11188 * for any states that can be caused by SCSI 11189 * commands. 11190 */ 11191 if (ctl_scsiio_lun_check(lun, entry, 11192 &cur_blocked->scsiio) == 0) { 11193 cur_blocked->io_hdr.flags |= 11194 CTL_FLAG_IS_WAS_ON_RTR; 11195 ctl_enqueue_rtr(cur_blocked); 11196 } else 11197 ctl_done(cur_blocked); 11198 break; 11199 } 11200 default: 11201 /* 11202 * This probably shouldn't happen -- we shouldn't 11203 * get CTL_ACTION_ERROR, or anything else. 11204 */ 11205 break; 11206 } 11207 } 11208 11209 return (CTL_RETVAL_COMPLETE); 11210} 11211 11212/* 11213 * This routine (with one exception) checks LUN flags that can be set by 11214 * commands ahead of us in the OOA queue. These flags have to be checked 11215 * when a command initially comes in, and when we pull a command off the 11216 * blocked queue and are preparing to execute it. The reason we have to 11217 * check these flags for commands on the blocked queue is that the LUN 11218 * state may have been changed by a command ahead of us while we're on the 11219 * blocked queue. 11220 * 11221 * Ordering is somewhat important with these checks, so please pay 11222 * careful attention to the placement of any new checks. 11223 */ 11224static int 11225ctl_scsiio_lun_check(struct ctl_lun *lun, 11226 const struct ctl_cmd_entry *entry, struct ctl_scsiio *ctsio) 11227{ 11228 struct ctl_softc *softc = lun->ctl_softc; 11229 int retval; 11230 uint32_t residx; 11231 11232 retval = 0; 11233 11234 mtx_assert(&lun->lun_lock, MA_OWNED); 11235 11236 /* 11237 * If this shelf is a secondary shelf controller, we may have to 11238 * reject some commands disallowed by HA mode and link state. 11239 */ 11240 if ((lun->flags & CTL_LUN_PRIMARY_SC) == 0) { 11241 if (softc->ha_link == CTL_HA_LINK_OFFLINE && 11242 (entry->flags & CTL_CMD_FLAG_OK_ON_UNAVAIL) == 0) { 11243 ctl_set_lun_unavail(ctsio); 11244 retval = 1; 11245 goto bailout; 11246 } 11247 if ((lun->flags & CTL_LUN_PEER_SC_PRIMARY) == 0 && 11248 (entry->flags & CTL_CMD_FLAG_OK_ON_UNAVAIL) == 0) { 11249 ctl_set_lun_transit(ctsio); 11250 retval = 1; 11251 goto bailout; 11252 } 11253 if (softc->ha_mode == CTL_HA_MODE_ACT_STBY && 11254 (entry->flags & CTL_CMD_FLAG_OK_ON_STANDBY) == 0) { 11255 ctl_set_lun_standby(ctsio); 11256 retval = 1; 11257 goto bailout; 11258 } 11259 11260 /* The rest of checks are only done on executing side */ 11261 if (softc->ha_mode == CTL_HA_MODE_XFER) 11262 goto bailout; 11263 } 11264 11265 if (entry->pattern & CTL_LUN_PAT_WRITE) { 11266 if (lun->be_lun && 11267 lun->be_lun->flags & CTL_LUN_FLAG_READONLY) { 11268 ctl_set_hw_write_protected(ctsio); 11269 retval = 1; 11270 goto bailout; 11271 } 11272 if ((lun->MODE_CTRL.eca_and_aen & SCP_SWP) != 0) { 11273 ctl_set_sense(ctsio, /*current_error*/ 1, 11274 /*sense_key*/ SSD_KEY_DATA_PROTECT, 11275 /*asc*/ 0x27, /*ascq*/ 0x02, SSD_ELEM_NONE); 11276 retval = 1; 11277 goto bailout; 11278 } 11279 } 11280 11281 /* 11282 * Check for a reservation conflict. If this command isn't allowed 11283 * even on reserved LUNs, and if this initiator isn't the one who 11284 * reserved us, reject the command with a reservation conflict. 11285 */ 11286 residx = ctl_get_initindex(&ctsio->io_hdr.nexus); 11287 if ((lun->flags & CTL_LUN_RESERVED) 11288 && ((entry->flags & CTL_CMD_FLAG_ALLOW_ON_RESV) == 0)) { 11289 if (lun->res_idx != residx) { 11290 ctl_set_reservation_conflict(ctsio); 11291 retval = 1; 11292 goto bailout; 11293 } 11294 } 11295 11296 if ((lun->flags & CTL_LUN_PR_RESERVED) == 0 || 11297 (entry->flags & CTL_CMD_FLAG_ALLOW_ON_PR_RESV)) { 11298 /* No reservation or command is allowed. */; 11299 } else if ((entry->flags & CTL_CMD_FLAG_ALLOW_ON_PR_WRESV) && 11300 (lun->pr_res_type == SPR_TYPE_WR_EX || 11301 lun->pr_res_type == SPR_TYPE_WR_EX_RO || 11302 lun->pr_res_type == SPR_TYPE_WR_EX_AR)) { 11303 /* The command is allowed for Write Exclusive resv. */; 11304 } else { 11305 /* 11306 * if we aren't registered or it's a res holder type 11307 * reservation and this isn't the res holder then set a 11308 * conflict. 11309 */ 11310 if (ctl_get_prkey(lun, residx) == 0 || 11311 (residx != lun->pr_res_idx && lun->pr_res_type < 4)) { 11312 ctl_set_reservation_conflict(ctsio); 11313 retval = 1; 11314 goto bailout; 11315 } 11316 } 11317 11318 if ((entry->flags & CTL_CMD_FLAG_OK_ON_NO_MEDIA) == 0) { 11319 if (lun->flags & CTL_LUN_EJECTED) 11320 ctl_set_lun_ejected(ctsio); 11321 else if (lun->flags & CTL_LUN_NO_MEDIA) { 11322 if (lun->flags & CTL_LUN_REMOVABLE) 11323 ctl_set_lun_no_media(ctsio); 11324 else 11325 ctl_set_lun_int_reqd(ctsio); 11326 } else if (lun->flags & CTL_LUN_STOPPED) 11327 ctl_set_lun_stopped(ctsio); 11328 else 11329 goto bailout; 11330 retval = 1; 11331 goto bailout; 11332 } 11333 11334bailout: 11335 return (retval); 11336} 11337 11338static void 11339ctl_failover_io(union ctl_io *io, int have_lock) 11340{ 11341 ctl_set_busy(&io->scsiio); 11342 ctl_done(io); 11343} 11344 11345static void 11346ctl_failover_lun(union ctl_io *rio) 11347{ 11348 struct ctl_softc *softc = CTL_SOFTC(rio); 11349 struct ctl_lun *lun; 11350 struct ctl_io_hdr *io, *next_io; 11351 uint32_t targ_lun; 11352 11353 targ_lun = rio->io_hdr.nexus.targ_mapped_lun; 11354 CTL_DEBUG_PRINT(("FAILOVER for lun %ju\n", targ_lun)); 11355 11356 /* Find and lock the LUN. */ 11357 mtx_lock(&softc->ctl_lock); 11358 if (targ_lun > CTL_MAX_LUNS || 11359 (lun = softc->ctl_luns[targ_lun]) == NULL) { 11360 mtx_unlock(&softc->ctl_lock); 11361 return; 11362 } 11363 mtx_lock(&lun->lun_lock); 11364 mtx_unlock(&softc->ctl_lock); 11365 if (lun->flags & CTL_LUN_DISABLED) { 11366 mtx_unlock(&lun->lun_lock); 11367 return; 11368 } 11369 11370 if (softc->ha_mode == CTL_HA_MODE_XFER) { 11371 TAILQ_FOREACH_SAFE(io, &lun->ooa_queue, ooa_links, next_io) { 11372 /* We are master */ 11373 if (io->flags & CTL_FLAG_FROM_OTHER_SC) { 11374 if (io->flags & CTL_FLAG_IO_ACTIVE) { 11375 io->flags |= CTL_FLAG_ABORT; 11376 io->flags |= CTL_FLAG_FAILOVER; 11377 } else { /* This can be only due to DATAMOVE */ 11378 io->msg_type = CTL_MSG_DATAMOVE_DONE; 11379 io->flags &= ~CTL_FLAG_DMA_INPROG; 11380 io->flags |= CTL_FLAG_IO_ACTIVE; 11381 io->port_status = 31340; 11382 ctl_enqueue_isc((union ctl_io *)io); 11383 } 11384 } 11385 /* We are slave */ 11386 if (io->flags & CTL_FLAG_SENT_2OTHER_SC) { 11387 io->flags &= ~CTL_FLAG_SENT_2OTHER_SC; 11388 if (io->flags & CTL_FLAG_IO_ACTIVE) { 11389 io->flags |= CTL_FLAG_FAILOVER; 11390 } else { 11391 ctl_set_busy(&((union ctl_io *)io)-> 11392 scsiio); 11393 ctl_done((union ctl_io *)io); 11394 } 11395 } 11396 } 11397 } else { /* SERIALIZE modes */ 11398 TAILQ_FOREACH_SAFE(io, &lun->blocked_queue, blocked_links, 11399 next_io) { 11400 /* We are master */ 11401 if (io->flags & CTL_FLAG_FROM_OTHER_SC) { 11402 TAILQ_REMOVE(&lun->blocked_queue, io, 11403 blocked_links); 11404 io->flags &= ~CTL_FLAG_BLOCKED; 11405 TAILQ_REMOVE(&lun->ooa_queue, io, ooa_links); 11406 ctl_free_io((union ctl_io *)io); 11407 } 11408 } 11409 TAILQ_FOREACH_SAFE(io, &lun->ooa_queue, ooa_links, next_io) { 11410 /* We are master */ 11411 if (io->flags & CTL_FLAG_FROM_OTHER_SC) { 11412 TAILQ_REMOVE(&lun->ooa_queue, io, ooa_links); 11413 ctl_free_io((union ctl_io *)io); 11414 } 11415 /* We are slave */ 11416 if (io->flags & CTL_FLAG_SENT_2OTHER_SC) { 11417 io->flags &= ~CTL_FLAG_SENT_2OTHER_SC; 11418 if (!(io->flags & CTL_FLAG_IO_ACTIVE)) { 11419 ctl_set_busy(&((union ctl_io *)io)-> 11420 scsiio); 11421 ctl_done((union ctl_io *)io); 11422 } 11423 } 11424 } 11425 ctl_check_blocked(lun); 11426 } 11427 mtx_unlock(&lun->lun_lock); 11428} 11429 11430static int 11431ctl_scsiio_precheck(struct ctl_softc *softc, struct ctl_scsiio *ctsio) 11432{ 11433 struct ctl_lun *lun; 11434 const struct ctl_cmd_entry *entry; 11435 uint32_t initidx, targ_lun; 11436 int retval = 0; 11437 11438 lun = NULL; 11439 targ_lun = ctsio->io_hdr.nexus.targ_mapped_lun; 11440 if (targ_lun < CTL_MAX_LUNS) 11441 lun = softc->ctl_luns[targ_lun]; 11442 if (lun) { 11443 /* 11444 * If the LUN is invalid, pretend that it doesn't exist. 11445 * It will go away as soon as all pending I/O has been 11446 * completed. 11447 */ 11448 mtx_lock(&lun->lun_lock); 11449 if (lun->flags & CTL_LUN_DISABLED) { 11450 mtx_unlock(&lun->lun_lock); 11451 lun = NULL; 11452 } 11453 } 11454 CTL_LUN(ctsio) = lun; 11455 if (lun) { 11456 CTL_BACKEND_LUN(ctsio) = lun->be_lun; 11457 11458 /* 11459 * Every I/O goes into the OOA queue for a particular LUN, 11460 * and stays there until completion. 11461 */ 11462#ifdef CTL_TIME_IO 11463 if (TAILQ_EMPTY(&lun->ooa_queue)) 11464 lun->idle_time += getsbinuptime() - lun->last_busy; 11465#endif 11466 TAILQ_INSERT_TAIL(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 11467 } 11468 11469 /* Get command entry and return error if it is unsuppotyed. */ 11470 entry = ctl_validate_command(ctsio); 11471 if (entry == NULL) { 11472 if (lun) 11473 mtx_unlock(&lun->lun_lock); 11474 return (retval); 11475 } 11476 11477 ctsio->io_hdr.flags &= ~CTL_FLAG_DATA_MASK; 11478 ctsio->io_hdr.flags |= entry->flags & CTL_FLAG_DATA_MASK; 11479 11480 /* 11481 * Check to see whether we can send this command to LUNs that don't 11482 * exist. This should pretty much only be the case for inquiry 11483 * and request sense. Further checks, below, really require having 11484 * a LUN, so we can't really check the command anymore. Just put 11485 * it on the rtr queue. 11486 */ 11487 if (lun == NULL) { 11488 if (entry->flags & CTL_CMD_FLAG_OK_ON_NO_LUN) { 11489 ctsio->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 11490 ctl_enqueue_rtr((union ctl_io *)ctsio); 11491 return (retval); 11492 } 11493 11494 ctl_set_unsupported_lun(ctsio); 11495 ctl_done((union ctl_io *)ctsio); 11496 CTL_DEBUG_PRINT(("ctl_scsiio_precheck: bailing out due to invalid LUN\n")); 11497 return (retval); 11498 } else { 11499 /* 11500 * Make sure we support this particular command on this LUN. 11501 * e.g., we don't support writes to the control LUN. 11502 */ 11503 if (!ctl_cmd_applicable(lun->be_lun->lun_type, entry)) { 11504 mtx_unlock(&lun->lun_lock); 11505 ctl_set_invalid_opcode(ctsio); 11506 ctl_done((union ctl_io *)ctsio); 11507 return (retval); 11508 } 11509 } 11510 11511 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 11512 11513#ifdef CTL_WITH_CA 11514 /* 11515 * If we've got a request sense, it'll clear the contingent 11516 * allegiance condition. Otherwise, if we have a CA condition for 11517 * this initiator, clear it, because it sent down a command other 11518 * than request sense. 11519 */ 11520 if ((ctsio->cdb[0] != REQUEST_SENSE) 11521 && (ctl_is_set(lun->have_ca, initidx))) 11522 ctl_clear_mask(lun->have_ca, initidx); 11523#endif 11524 11525 /* 11526 * If the command has this flag set, it handles its own unit 11527 * attention reporting, we shouldn't do anything. Otherwise we 11528 * check for any pending unit attentions, and send them back to the 11529 * initiator. We only do this when a command initially comes in, 11530 * not when we pull it off the blocked queue. 11531 * 11532 * According to SAM-3, section 5.3.2, the order that things get 11533 * presented back to the host is basically unit attentions caused 11534 * by some sort of reset event, busy status, reservation conflicts 11535 * or task set full, and finally any other status. 11536 * 11537 * One issue here is that some of the unit attentions we report 11538 * don't fall into the "reset" category (e.g. "reported luns data 11539 * has changed"). So reporting it here, before the reservation 11540 * check, may be technically wrong. I guess the only thing to do 11541 * would be to check for and report the reset events here, and then 11542 * check for the other unit attention types after we check for a 11543 * reservation conflict. 11544 * 11545 * XXX KDM need to fix this 11546 */ 11547 if ((entry->flags & CTL_CMD_FLAG_NO_SENSE) == 0) { 11548 ctl_ua_type ua_type; 11549 u_int sense_len = 0; 11550 11551 ua_type = ctl_build_ua(lun, initidx, &ctsio->sense_data, 11552 &sense_len, SSD_TYPE_NONE); 11553 if (ua_type != CTL_UA_NONE) { 11554 mtx_unlock(&lun->lun_lock); 11555 ctsio->scsi_status = SCSI_STATUS_CHECK_COND; 11556 ctsio->io_hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 11557 ctsio->sense_len = sense_len; 11558 ctl_done((union ctl_io *)ctsio); 11559 return (retval); 11560 } 11561 } 11562 11563 11564 if (ctl_scsiio_lun_check(lun, entry, ctsio) != 0) { 11565 mtx_unlock(&lun->lun_lock); 11566 ctl_done((union ctl_io *)ctsio); 11567 return (retval); 11568 } 11569 11570 /* 11571 * XXX CHD this is where we want to send IO to other side if 11572 * this LUN is secondary on this SC. We will need to make a copy 11573 * of the IO and flag the IO on this side as SENT_2OTHER and the flag 11574 * the copy we send as FROM_OTHER. 11575 * We also need to stuff the address of the original IO so we can 11576 * find it easily. Something similar will need be done on the other 11577 * side so when we are done we can find the copy. 11578 */ 11579 if ((lun->flags & CTL_LUN_PRIMARY_SC) == 0 && 11580 (lun->flags & CTL_LUN_PEER_SC_PRIMARY) != 0 && 11581 (entry->flags & CTL_CMD_FLAG_RUN_HERE) == 0) { 11582 union ctl_ha_msg msg_info; 11583 int isc_retval; 11584 11585 ctsio->io_hdr.flags |= CTL_FLAG_SENT_2OTHER_SC; 11586 ctsio->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 11587 mtx_unlock(&lun->lun_lock); 11588 11589 msg_info.hdr.msg_type = CTL_MSG_SERIALIZE; 11590 msg_info.hdr.original_sc = (union ctl_io *)ctsio; 11591 msg_info.hdr.serializing_sc = NULL; 11592 msg_info.hdr.nexus = ctsio->io_hdr.nexus; 11593 msg_info.scsi.tag_num = ctsio->tag_num; 11594 msg_info.scsi.tag_type = ctsio->tag_type; 11595 msg_info.scsi.cdb_len = ctsio->cdb_len; 11596 memcpy(msg_info.scsi.cdb, ctsio->cdb, CTL_MAX_CDBLEN); 11597 11598 if ((isc_retval = ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 11599 sizeof(msg_info.scsi) - sizeof(msg_info.scsi.sense_data), 11600 M_WAITOK)) > CTL_HA_STATUS_SUCCESS) { 11601 ctl_set_busy(ctsio); 11602 ctl_done((union ctl_io *)ctsio); 11603 return (retval); 11604 } 11605 return (retval); 11606 } 11607 11608 switch (ctl_check_ooa(lun, (union ctl_io *)ctsio, 11609 (union ctl_io *)TAILQ_PREV(&ctsio->io_hdr, 11610 ctl_ooaq, ooa_links))) { 11611 case CTL_ACTION_BLOCK: 11612 ctsio->io_hdr.flags |= CTL_FLAG_BLOCKED; 11613 TAILQ_INSERT_TAIL(&lun->blocked_queue, &ctsio->io_hdr, 11614 blocked_links); 11615 mtx_unlock(&lun->lun_lock); 11616 return (retval); 11617 case CTL_ACTION_PASS: 11618 case CTL_ACTION_SKIP: 11619 ctsio->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 11620 mtx_unlock(&lun->lun_lock); 11621 ctl_enqueue_rtr((union ctl_io *)ctsio); 11622 break; 11623 case CTL_ACTION_OVERLAP: 11624 mtx_unlock(&lun->lun_lock); 11625 ctl_set_overlapped_cmd(ctsio); 11626 ctl_done((union ctl_io *)ctsio); 11627 break; 11628 case CTL_ACTION_OVERLAP_TAG: 11629 mtx_unlock(&lun->lun_lock); 11630 ctl_set_overlapped_tag(ctsio, ctsio->tag_num & 0xff); 11631 ctl_done((union ctl_io *)ctsio); 11632 break; 11633 case CTL_ACTION_ERROR: 11634 default: 11635 mtx_unlock(&lun->lun_lock); 11636 ctl_set_internal_failure(ctsio, 11637 /*sks_valid*/ 0, 11638 /*retry_count*/ 0); 11639 ctl_done((union ctl_io *)ctsio); 11640 break; 11641 } 11642 return (retval); 11643} 11644 11645const struct ctl_cmd_entry * 11646ctl_get_cmd_entry(struct ctl_scsiio *ctsio, int *sa) 11647{ 11648 const struct ctl_cmd_entry *entry; 11649 int service_action; 11650 11651 entry = &ctl_cmd_table[ctsio->cdb[0]]; 11652 if (sa) 11653 *sa = ((entry->flags & CTL_CMD_FLAG_SA5) != 0); 11654 if (entry->flags & CTL_CMD_FLAG_SA5) { 11655 service_action = ctsio->cdb[1] & SERVICE_ACTION_MASK; 11656 entry = &((const struct ctl_cmd_entry *) 11657 entry->execute)[service_action]; 11658 } 11659 return (entry); 11660} 11661 11662const struct ctl_cmd_entry * 11663ctl_validate_command(struct ctl_scsiio *ctsio) 11664{ 11665 const struct ctl_cmd_entry *entry; 11666 int i, sa; 11667 uint8_t diff; 11668 11669 entry = ctl_get_cmd_entry(ctsio, &sa); 11670 if (entry->execute == NULL) { 11671 if (sa) 11672 ctl_set_invalid_field(ctsio, 11673 /*sks_valid*/ 1, 11674 /*command*/ 1, 11675 /*field*/ 1, 11676 /*bit_valid*/ 1, 11677 /*bit*/ 4); 11678 else 11679 ctl_set_invalid_opcode(ctsio); 11680 ctl_done((union ctl_io *)ctsio); 11681 return (NULL); 11682 } 11683 KASSERT(entry->length > 0, 11684 ("Not defined length for command 0x%02x/0x%02x", 11685 ctsio->cdb[0], ctsio->cdb[1])); 11686 for (i = 1; i < entry->length; i++) { 11687 diff = ctsio->cdb[i] & ~entry->usage[i - 1]; 11688 if (diff == 0) 11689 continue; 11690 ctl_set_invalid_field(ctsio, 11691 /*sks_valid*/ 1, 11692 /*command*/ 1, 11693 /*field*/ i, 11694 /*bit_valid*/ 1, 11695 /*bit*/ fls(diff) - 1); 11696 ctl_done((union ctl_io *)ctsio); 11697 return (NULL); 11698 } 11699 return (entry); 11700} 11701 11702static int 11703ctl_cmd_applicable(uint8_t lun_type, const struct ctl_cmd_entry *entry) 11704{ 11705 11706 switch (lun_type) { 11707 case T_DIRECT: 11708 if ((entry->flags & CTL_CMD_FLAG_OK_ON_DIRECT) == 0) 11709 return (0); 11710 break; 11711 case T_PROCESSOR: 11712 if ((entry->flags & CTL_CMD_FLAG_OK_ON_PROC) == 0) 11713 return (0); 11714 break; 11715 case T_CDROM: 11716 if ((entry->flags & CTL_CMD_FLAG_OK_ON_CDROM) == 0) 11717 return (0); 11718 break; 11719 default: 11720 return (0); 11721 } 11722 return (1); 11723} 11724 11725static int 11726ctl_scsiio(struct ctl_scsiio *ctsio) 11727{ 11728 int retval; 11729 const struct ctl_cmd_entry *entry; 11730 11731 retval = CTL_RETVAL_COMPLETE; 11732 11733 CTL_DEBUG_PRINT(("ctl_scsiio cdb[0]=%02X\n", ctsio->cdb[0])); 11734 11735 entry = ctl_get_cmd_entry(ctsio, NULL); 11736 11737 /* 11738 * If this I/O has been aborted, just send it straight to 11739 * ctl_done() without executing it. 11740 */ 11741 if (ctsio->io_hdr.flags & CTL_FLAG_ABORT) { 11742 ctl_done((union ctl_io *)ctsio); 11743 goto bailout; 11744 } 11745 11746 /* 11747 * All the checks should have been handled by ctl_scsiio_precheck(). 11748 * We should be clear now to just execute the I/O. 11749 */ 11750 retval = entry->execute(ctsio); 11751 11752bailout: 11753 return (retval); 11754} 11755 11756/* 11757 * Since we only implement one target right now, a bus reset simply resets 11758 * our single target. 11759 */ 11760static int 11761ctl_bus_reset(struct ctl_softc *softc, union ctl_io *io) 11762{ 11763 return(ctl_target_reset(softc, io, CTL_UA_BUS_RESET)); 11764} 11765 11766static int 11767ctl_target_reset(struct ctl_softc *softc, union ctl_io *io, 11768 ctl_ua_type ua_type) 11769{ 11770 struct ctl_port *port = CTL_PORT(io); 11771 struct ctl_lun *lun; 11772 int retval; 11773 11774 if (!(io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)) { 11775 union ctl_ha_msg msg_info; 11776 11777 msg_info.hdr.nexus = io->io_hdr.nexus; 11778 if (ua_type==CTL_UA_TARG_RESET) 11779 msg_info.task.task_action = CTL_TASK_TARGET_RESET; 11780 else 11781 msg_info.task.task_action = CTL_TASK_BUS_RESET; 11782 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 11783 msg_info.hdr.original_sc = NULL; 11784 msg_info.hdr.serializing_sc = NULL; 11785 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 11786 sizeof(msg_info.task), M_WAITOK); 11787 } 11788 retval = 0; 11789 11790 mtx_lock(&softc->ctl_lock); 11791 STAILQ_FOREACH(lun, &softc->lun_list, links) { 11792 if (port != NULL && 11793 ctl_lun_map_to_port(port, lun->lun) == UINT32_MAX) 11794 continue; 11795 retval += ctl_do_lun_reset(lun, io, ua_type); 11796 } 11797 mtx_unlock(&softc->ctl_lock); 11798 io->taskio.task_status = CTL_TASK_FUNCTION_COMPLETE; 11799 return (retval); 11800} 11801 11802/* 11803 * The LUN should always be set. The I/O is optional, and is used to 11804 * distinguish between I/Os sent by this initiator, and by other 11805 * initiators. We set unit attention for initiators other than this one. 11806 * SAM-3 is vague on this point. It does say that a unit attention should 11807 * be established for other initiators when a LUN is reset (see section 11808 * 5.7.3), but it doesn't specifically say that the unit attention should 11809 * be established for this particular initiator when a LUN is reset. Here 11810 * is the relevant text, from SAM-3 rev 8: 11811 * 11812 * 5.7.2 When a SCSI initiator port aborts its own tasks 11813 * 11814 * When a SCSI initiator port causes its own task(s) to be aborted, no 11815 * notification that the task(s) have been aborted shall be returned to 11816 * the SCSI initiator port other than the completion response for the 11817 * command or task management function action that caused the task(s) to 11818 * be aborted and notification(s) associated with related effects of the 11819 * action (e.g., a reset unit attention condition). 11820 * 11821 * XXX KDM for now, we're setting unit attention for all initiators. 11822 */ 11823static int 11824ctl_do_lun_reset(struct ctl_lun *lun, union ctl_io *io, ctl_ua_type ua_type) 11825{ 11826 union ctl_io *xio; 11827#if 0 11828 uint32_t initidx; 11829#endif 11830 int i; 11831 11832 mtx_lock(&lun->lun_lock); 11833 /* 11834 * Run through the OOA queue and abort each I/O. 11835 */ 11836 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 11837 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 11838 xio->io_hdr.flags |= CTL_FLAG_ABORT | CTL_FLAG_ABORT_STATUS; 11839 } 11840 11841 /* 11842 * This version sets unit attention for every 11843 */ 11844#if 0 11845 initidx = ctl_get_initindex(&io->io_hdr.nexus); 11846 ctl_est_ua_all(lun, initidx, ua_type); 11847#else 11848 ctl_est_ua_all(lun, -1, ua_type); 11849#endif 11850 11851 /* 11852 * A reset (any kind, really) clears reservations established with 11853 * RESERVE/RELEASE. It does not clear reservations established 11854 * with PERSISTENT RESERVE OUT, but we don't support that at the 11855 * moment anyway. See SPC-2, section 5.6. SPC-3 doesn't address 11856 * reservations made with the RESERVE/RELEASE commands, because 11857 * those commands are obsolete in SPC-3. 11858 */ 11859 lun->flags &= ~CTL_LUN_RESERVED; 11860 11861#ifdef CTL_WITH_CA 11862 for (i = 0; i < CTL_MAX_INITIATORS; i++) 11863 ctl_clear_mask(lun->have_ca, i); 11864#endif 11865 lun->prevent_count = 0; 11866 for (i = 0; i < CTL_MAX_INITIATORS; i++) 11867 ctl_clear_mask(lun->prevent, i); 11868 mtx_unlock(&lun->lun_lock); 11869 11870 return (0); 11871} 11872 11873static int 11874ctl_lun_reset(struct ctl_softc *softc, union ctl_io *io) 11875{ 11876 struct ctl_lun *lun; 11877 uint32_t targ_lun; 11878 int retval; 11879 11880 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 11881 mtx_lock(&softc->ctl_lock); 11882 if (targ_lun >= CTL_MAX_LUNS || 11883 (lun = softc->ctl_luns[targ_lun]) == NULL) { 11884 mtx_unlock(&softc->ctl_lock); 11885 io->taskio.task_status = CTL_TASK_LUN_DOES_NOT_EXIST; 11886 return (1); 11887 } 11888 retval = ctl_do_lun_reset(lun, io, CTL_UA_LUN_RESET); 11889 mtx_unlock(&softc->ctl_lock); 11890 io->taskio.task_status = CTL_TASK_FUNCTION_COMPLETE; 11891 11892 if ((io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) == 0) { 11893 union ctl_ha_msg msg_info; 11894 11895 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 11896 msg_info.hdr.nexus = io->io_hdr.nexus; 11897 msg_info.task.task_action = CTL_TASK_LUN_RESET; 11898 msg_info.hdr.original_sc = NULL; 11899 msg_info.hdr.serializing_sc = NULL; 11900 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 11901 sizeof(msg_info.task), M_WAITOK); 11902 } 11903 return (retval); 11904} 11905 11906static void 11907ctl_abort_tasks_lun(struct ctl_lun *lun, uint32_t targ_port, uint32_t init_id, 11908 int other_sc) 11909{ 11910 union ctl_io *xio; 11911 11912 mtx_assert(&lun->lun_lock, MA_OWNED); 11913 11914 /* 11915 * Run through the OOA queue and attempt to find the given I/O. 11916 * The target port, initiator ID, tag type and tag number have to 11917 * match the values that we got from the initiator. If we have an 11918 * untagged command to abort, simply abort the first untagged command 11919 * we come to. We only allow one untagged command at a time of course. 11920 */ 11921 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 11922 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 11923 11924 if ((targ_port == UINT32_MAX || 11925 targ_port == xio->io_hdr.nexus.targ_port) && 11926 (init_id == UINT32_MAX || 11927 init_id == xio->io_hdr.nexus.initid)) { 11928 if (targ_port != xio->io_hdr.nexus.targ_port || 11929 init_id != xio->io_hdr.nexus.initid) 11930 xio->io_hdr.flags |= CTL_FLAG_ABORT_STATUS; 11931 xio->io_hdr.flags |= CTL_FLAG_ABORT; 11932 if (!other_sc && !(lun->flags & CTL_LUN_PRIMARY_SC)) { 11933 union ctl_ha_msg msg_info; 11934 11935 msg_info.hdr.nexus = xio->io_hdr.nexus; 11936 msg_info.task.task_action = CTL_TASK_ABORT_TASK; 11937 msg_info.task.tag_num = xio->scsiio.tag_num; 11938 msg_info.task.tag_type = xio->scsiio.tag_type; 11939 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 11940 msg_info.hdr.original_sc = NULL; 11941 msg_info.hdr.serializing_sc = NULL; 11942 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 11943 sizeof(msg_info.task), M_NOWAIT); 11944 } 11945 } 11946 } 11947} 11948 11949static int 11950ctl_abort_task_set(union ctl_io *io) 11951{ 11952 struct ctl_softc *softc = CTL_SOFTC(io); 11953 struct ctl_lun *lun; 11954 uint32_t targ_lun; 11955 11956 /* 11957 * Look up the LUN. 11958 */ 11959 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 11960 mtx_lock(&softc->ctl_lock); 11961 if (targ_lun >= CTL_MAX_LUNS || 11962 (lun = softc->ctl_luns[targ_lun]) == NULL) { 11963 mtx_unlock(&softc->ctl_lock); 11964 io->taskio.task_status = CTL_TASK_LUN_DOES_NOT_EXIST; 11965 return (1); 11966 } 11967 11968 mtx_lock(&lun->lun_lock); 11969 mtx_unlock(&softc->ctl_lock); 11970 if (io->taskio.task_action == CTL_TASK_ABORT_TASK_SET) { 11971 ctl_abort_tasks_lun(lun, io->io_hdr.nexus.targ_port, 11972 io->io_hdr.nexus.initid, 11973 (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) != 0); 11974 } else { /* CTL_TASK_CLEAR_TASK_SET */ 11975 ctl_abort_tasks_lun(lun, UINT32_MAX, UINT32_MAX, 11976 (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) != 0); 11977 } 11978 mtx_unlock(&lun->lun_lock); 11979 io->taskio.task_status = CTL_TASK_FUNCTION_COMPLETE; 11980 return (0); 11981} 11982 11983static int 11984ctl_i_t_nexus_reset(union ctl_io *io) 11985{ 11986 struct ctl_softc *softc = CTL_SOFTC(io); 11987 struct ctl_lun *lun; 11988 uint32_t initidx; 11989 11990 if (!(io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)) { 11991 union ctl_ha_msg msg_info; 11992 11993 msg_info.hdr.nexus = io->io_hdr.nexus; 11994 msg_info.task.task_action = CTL_TASK_I_T_NEXUS_RESET; 11995 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 11996 msg_info.hdr.original_sc = NULL; 11997 msg_info.hdr.serializing_sc = NULL; 11998 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 11999 sizeof(msg_info.task), M_WAITOK); 12000 } 12001 12002 initidx = ctl_get_initindex(&io->io_hdr.nexus); 12003 mtx_lock(&softc->ctl_lock); 12004 STAILQ_FOREACH(lun, &softc->lun_list, links) { 12005 mtx_lock(&lun->lun_lock); 12006 ctl_abort_tasks_lun(lun, io->io_hdr.nexus.targ_port, 12007 io->io_hdr.nexus.initid, 1); 12008#ifdef CTL_WITH_CA 12009 ctl_clear_mask(lun->have_ca, initidx); 12010#endif 12011 if ((lun->flags & CTL_LUN_RESERVED) && (lun->res_idx == initidx)) 12012 lun->flags &= ~CTL_LUN_RESERVED; 12013 if (ctl_is_set(lun->prevent, initidx)) { 12014 ctl_clear_mask(lun->prevent, initidx); 12015 lun->prevent_count--; 12016 } 12017 ctl_est_ua(lun, initidx, CTL_UA_I_T_NEXUS_LOSS); 12018 mtx_unlock(&lun->lun_lock); 12019 } 12020 mtx_unlock(&softc->ctl_lock); 12021 io->taskio.task_status = CTL_TASK_FUNCTION_COMPLETE; 12022 return (0); 12023} 12024 12025static int 12026ctl_abort_task(union ctl_io *io) 12027{ 12028 struct ctl_softc *softc = CTL_SOFTC(io); 12029 union ctl_io *xio; 12030 struct ctl_lun *lun; 12031#if 0 12032 struct sbuf sb; 12033 char printbuf[128]; 12034#endif 12035 int found; 12036 uint32_t targ_lun; 12037 12038 found = 0; 12039 12040 /* 12041 * Look up the LUN. 12042 */ 12043 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12044 mtx_lock(&softc->ctl_lock); 12045 if (targ_lun >= CTL_MAX_LUNS || 12046 (lun = softc->ctl_luns[targ_lun]) == NULL) { 12047 mtx_unlock(&softc->ctl_lock); 12048 io->taskio.task_status = CTL_TASK_LUN_DOES_NOT_EXIST; 12049 return (1); 12050 } 12051 12052#if 0 12053 printf("ctl_abort_task: called for lun %lld, tag %d type %d\n", 12054 lun->lun, io->taskio.tag_num, io->taskio.tag_type); 12055#endif 12056 12057 mtx_lock(&lun->lun_lock); 12058 mtx_unlock(&softc->ctl_lock); 12059 /* 12060 * Run through the OOA queue and attempt to find the given I/O. 12061 * The target port, initiator ID, tag type and tag number have to 12062 * match the values that we got from the initiator. If we have an 12063 * untagged command to abort, simply abort the first untagged command 12064 * we come to. We only allow one untagged command at a time of course. 12065 */ 12066 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 12067 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 12068#if 0 12069 sbuf_new(&sb, printbuf, sizeof(printbuf), SBUF_FIXEDLEN); 12070 12071 sbuf_printf(&sb, "LUN %lld tag %d type %d%s%s%s%s: ", 12072 lun->lun, xio->scsiio.tag_num, 12073 xio->scsiio.tag_type, 12074 (xio->io_hdr.blocked_links.tqe_prev 12075 == NULL) ? "" : " BLOCKED", 12076 (xio->io_hdr.flags & 12077 CTL_FLAG_DMA_INPROG) ? " DMA" : "", 12078 (xio->io_hdr.flags & 12079 CTL_FLAG_ABORT) ? " ABORT" : "", 12080 (xio->io_hdr.flags & 12081 CTL_FLAG_IS_WAS_ON_RTR ? " RTR" : "")); 12082 ctl_scsi_command_string(&xio->scsiio, NULL, &sb); 12083 sbuf_finish(&sb); 12084 printf("%s\n", sbuf_data(&sb)); 12085#endif 12086 12087 if ((xio->io_hdr.nexus.targ_port != io->io_hdr.nexus.targ_port) 12088 || (xio->io_hdr.nexus.initid != io->io_hdr.nexus.initid) 12089 || (xio->io_hdr.flags & CTL_FLAG_ABORT)) 12090 continue; 12091 12092 /* 12093 * If the abort says that the task is untagged, the 12094 * task in the queue must be untagged. Otherwise, 12095 * we just check to see whether the tag numbers 12096 * match. This is because the QLogic firmware 12097 * doesn't pass back the tag type in an abort 12098 * request. 12099 */ 12100#if 0 12101 if (((xio->scsiio.tag_type == CTL_TAG_UNTAGGED) 12102 && (io->taskio.tag_type == CTL_TAG_UNTAGGED)) 12103 || (xio->scsiio.tag_num == io->taskio.tag_num)) 12104#endif 12105 /* 12106 * XXX KDM we've got problems with FC, because it 12107 * doesn't send down a tag type with aborts. So we 12108 * can only really go by the tag number... 12109 * This may cause problems with parallel SCSI. 12110 * Need to figure that out!! 12111 */ 12112 if (xio->scsiio.tag_num == io->taskio.tag_num) { 12113 xio->io_hdr.flags |= CTL_FLAG_ABORT; 12114 found = 1; 12115 if ((io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) == 0 && 12116 !(lun->flags & CTL_LUN_PRIMARY_SC)) { 12117 union ctl_ha_msg msg_info; 12118 12119 msg_info.hdr.nexus = io->io_hdr.nexus; 12120 msg_info.task.task_action = CTL_TASK_ABORT_TASK; 12121 msg_info.task.tag_num = io->taskio.tag_num; 12122 msg_info.task.tag_type = io->taskio.tag_type; 12123 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 12124 msg_info.hdr.original_sc = NULL; 12125 msg_info.hdr.serializing_sc = NULL; 12126#if 0 12127 printf("Sent Abort to other side\n"); 12128#endif 12129 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 12130 sizeof(msg_info.task), M_NOWAIT); 12131 } 12132#if 0 12133 printf("ctl_abort_task: found I/O to abort\n"); 12134#endif 12135 } 12136 } 12137 mtx_unlock(&lun->lun_lock); 12138 12139 if (found == 0) { 12140 /* 12141 * This isn't really an error. It's entirely possible for 12142 * the abort and command completion to cross on the wire. 12143 * This is more of an informative/diagnostic error. 12144 */ 12145#if 0 12146 printf("ctl_abort_task: ABORT sent for nonexistent I/O: " 12147 "%u:%u:%u tag %d type %d\n", 12148 io->io_hdr.nexus.initid, 12149 io->io_hdr.nexus.targ_port, 12150 io->io_hdr.nexus.targ_lun, io->taskio.tag_num, 12151 io->taskio.tag_type); 12152#endif 12153 } 12154 io->taskio.task_status = CTL_TASK_FUNCTION_COMPLETE; 12155 return (0); 12156} 12157 12158static int 12159ctl_query_task(union ctl_io *io, int task_set) 12160{ 12161 struct ctl_softc *softc = CTL_SOFTC(io); 12162 union ctl_io *xio; 12163 struct ctl_lun *lun; 12164 int found = 0; 12165 uint32_t targ_lun; 12166 12167 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12168 mtx_lock(&softc->ctl_lock); 12169 if (targ_lun >= CTL_MAX_LUNS || 12170 (lun = softc->ctl_luns[targ_lun]) == NULL) { 12171 mtx_unlock(&softc->ctl_lock); 12172 io->taskio.task_status = CTL_TASK_LUN_DOES_NOT_EXIST; 12173 return (1); 12174 } 12175 mtx_lock(&lun->lun_lock); 12176 mtx_unlock(&softc->ctl_lock); 12177 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 12178 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 12179 12180 if ((xio->io_hdr.nexus.targ_port != io->io_hdr.nexus.targ_port) 12181 || (xio->io_hdr.nexus.initid != io->io_hdr.nexus.initid) 12182 || (xio->io_hdr.flags & CTL_FLAG_ABORT)) 12183 continue; 12184 12185 if (task_set || xio->scsiio.tag_num == io->taskio.tag_num) { 12186 found = 1; 12187 break; 12188 } 12189 } 12190 mtx_unlock(&lun->lun_lock); 12191 if (found) 12192 io->taskio.task_status = CTL_TASK_FUNCTION_SUCCEEDED; 12193 else 12194 io->taskio.task_status = CTL_TASK_FUNCTION_COMPLETE; 12195 return (0); 12196} 12197 12198static int 12199ctl_query_async_event(union ctl_io *io) 12200{ 12201 struct ctl_softc *softc = CTL_SOFTC(io); 12202 struct ctl_lun *lun; 12203 ctl_ua_type ua; 12204 uint32_t targ_lun, initidx; 12205 12206 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12207 mtx_lock(&softc->ctl_lock); 12208 if (targ_lun >= CTL_MAX_LUNS || 12209 (lun = softc->ctl_luns[targ_lun]) == NULL) { 12210 mtx_unlock(&softc->ctl_lock); 12211 io->taskio.task_status = CTL_TASK_LUN_DOES_NOT_EXIST; 12212 return (1); 12213 } 12214 mtx_lock(&lun->lun_lock); 12215 mtx_unlock(&softc->ctl_lock); 12216 initidx = ctl_get_initindex(&io->io_hdr.nexus); 12217 ua = ctl_build_qae(lun, initidx, io->taskio.task_resp); 12218 mtx_unlock(&lun->lun_lock); 12219 if (ua != CTL_UA_NONE) 12220 io->taskio.task_status = CTL_TASK_FUNCTION_SUCCEEDED; 12221 else 12222 io->taskio.task_status = CTL_TASK_FUNCTION_COMPLETE; 12223 return (0); 12224} 12225 12226static void 12227ctl_run_task(union ctl_io *io) 12228{ 12229 struct ctl_softc *softc = CTL_SOFTC(io); 12230 int retval = 1; 12231 12232 CTL_DEBUG_PRINT(("ctl_run_task\n")); 12233 KASSERT(io->io_hdr.io_type == CTL_IO_TASK, 12234 ("ctl_run_task: Unextected io_type %d\n", io->io_hdr.io_type)); 12235 io->taskio.task_status = CTL_TASK_FUNCTION_NOT_SUPPORTED; 12236 bzero(io->taskio.task_resp, sizeof(io->taskio.task_resp)); 12237 switch (io->taskio.task_action) { 12238 case CTL_TASK_ABORT_TASK: 12239 retval = ctl_abort_task(io); 12240 break; 12241 case CTL_TASK_ABORT_TASK_SET: 12242 case CTL_TASK_CLEAR_TASK_SET: 12243 retval = ctl_abort_task_set(io); 12244 break; 12245 case CTL_TASK_CLEAR_ACA: 12246 break; 12247 case CTL_TASK_I_T_NEXUS_RESET: 12248 retval = ctl_i_t_nexus_reset(io); 12249 break; 12250 case CTL_TASK_LUN_RESET: 12251 retval = ctl_lun_reset(softc, io); 12252 break; 12253 case CTL_TASK_TARGET_RESET: 12254 retval = ctl_target_reset(softc, io, CTL_UA_TARG_RESET); 12255 break; 12256 case CTL_TASK_BUS_RESET: 12257 retval = ctl_bus_reset(softc, io); 12258 break; 12259 case CTL_TASK_PORT_LOGIN: 12260 break; 12261 case CTL_TASK_PORT_LOGOUT: 12262 break; 12263 case CTL_TASK_QUERY_TASK: 12264 retval = ctl_query_task(io, 0); 12265 break; 12266 case CTL_TASK_QUERY_TASK_SET: 12267 retval = ctl_query_task(io, 1); 12268 break; 12269 case CTL_TASK_QUERY_ASYNC_EVENT: 12270 retval = ctl_query_async_event(io); 12271 break; 12272 default: 12273 printf("%s: got unknown task management event %d\n", 12274 __func__, io->taskio.task_action); 12275 break; 12276 } 12277 if (retval == 0) 12278 io->io_hdr.status = CTL_SUCCESS; 12279 else 12280 io->io_hdr.status = CTL_ERROR; 12281 ctl_done(io); 12282} 12283 12284/* 12285 * For HA operation. Handle commands that come in from the other 12286 * controller. 12287 */ 12288static void 12289ctl_handle_isc(union ctl_io *io) 12290{ 12291 struct ctl_softc *softc = CTL_SOFTC(io); 12292 struct ctl_lun *lun; 12293 const struct ctl_cmd_entry *entry; 12294 uint32_t targ_lun; 12295 12296 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12297 switch (io->io_hdr.msg_type) { 12298 case CTL_MSG_SERIALIZE: 12299 ctl_serialize_other_sc_cmd(&io->scsiio); 12300 break; 12301 case CTL_MSG_R2R: /* Only used in SER_ONLY mode. */ 12302 entry = ctl_get_cmd_entry(&io->scsiio, NULL); 12303 if (targ_lun >= CTL_MAX_LUNS || 12304 (lun = softc->ctl_luns[targ_lun]) == NULL) { 12305 ctl_done(io); 12306 break; 12307 } 12308 mtx_lock(&lun->lun_lock); 12309 if (ctl_scsiio_lun_check(lun, entry, &io->scsiio) != 0) { 12310 mtx_unlock(&lun->lun_lock); 12311 ctl_done(io); 12312 break; 12313 } 12314 io->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 12315 mtx_unlock(&lun->lun_lock); 12316 ctl_enqueue_rtr(io); 12317 break; 12318 case CTL_MSG_FINISH_IO: 12319 if (softc->ha_mode == CTL_HA_MODE_XFER) { 12320 ctl_done(io); 12321 break; 12322 } 12323 if (targ_lun >= CTL_MAX_LUNS || 12324 (lun = softc->ctl_luns[targ_lun]) == NULL) { 12325 ctl_free_io(io); 12326 break; 12327 } 12328 mtx_lock(&lun->lun_lock); 12329 TAILQ_REMOVE(&lun->ooa_queue, &io->io_hdr, ooa_links); 12330 ctl_check_blocked(lun); 12331 mtx_unlock(&lun->lun_lock); 12332 ctl_free_io(io); 12333 break; 12334 case CTL_MSG_PERS_ACTION: 12335 ctl_hndl_per_res_out_on_other_sc(io); 12336 ctl_free_io(io); 12337 break; 12338 case CTL_MSG_BAD_JUJU: 12339 ctl_done(io); 12340 break; 12341 case CTL_MSG_DATAMOVE: /* Only used in XFER mode */ 12342 ctl_datamove_remote(io); 12343 break; 12344 case CTL_MSG_DATAMOVE_DONE: /* Only used in XFER mode */ 12345 io->scsiio.be_move_done(io); 12346 break; 12347 case CTL_MSG_FAILOVER: 12348 ctl_failover_lun(io); 12349 ctl_free_io(io); 12350 break; 12351 default: 12352 printf("%s: Invalid message type %d\n", 12353 __func__, io->io_hdr.msg_type); 12354 ctl_free_io(io); 12355 break; 12356 } 12357 12358} 12359 12360 12361/* 12362 * Returns the match type in the case of a match, or CTL_LUN_PAT_NONE if 12363 * there is no match. 12364 */ 12365static ctl_lun_error_pattern 12366ctl_cmd_pattern_match(struct ctl_scsiio *ctsio, struct ctl_error_desc *desc) 12367{ 12368 const struct ctl_cmd_entry *entry; 12369 ctl_lun_error_pattern filtered_pattern, pattern; 12370 12371 pattern = desc->error_pattern; 12372 12373 /* 12374 * XXX KDM we need more data passed into this function to match a 12375 * custom pattern, and we actually need to implement custom pattern 12376 * matching. 12377 */ 12378 if (pattern & CTL_LUN_PAT_CMD) 12379 return (CTL_LUN_PAT_CMD); 12380 12381 if ((pattern & CTL_LUN_PAT_MASK) == CTL_LUN_PAT_ANY) 12382 return (CTL_LUN_PAT_ANY); 12383 12384 entry = ctl_get_cmd_entry(ctsio, NULL); 12385 12386 filtered_pattern = entry->pattern & pattern; 12387 12388 /* 12389 * If the user requested specific flags in the pattern (e.g. 12390 * CTL_LUN_PAT_RANGE), make sure the command supports all of those 12391 * flags. 12392 * 12393 * If the user did not specify any flags, it doesn't matter whether 12394 * or not the command supports the flags. 12395 */ 12396 if ((filtered_pattern & ~CTL_LUN_PAT_MASK) != 12397 (pattern & ~CTL_LUN_PAT_MASK)) 12398 return (CTL_LUN_PAT_NONE); 12399 12400 /* 12401 * If the user asked for a range check, see if the requested LBA 12402 * range overlaps with this command's LBA range. 12403 */ 12404 if (filtered_pattern & CTL_LUN_PAT_RANGE) { 12405 uint64_t lba1; 12406 uint64_t len1; 12407 ctl_action action; 12408 int retval; 12409 12410 retval = ctl_get_lba_len((union ctl_io *)ctsio, &lba1, &len1); 12411 if (retval != 0) 12412 return (CTL_LUN_PAT_NONE); 12413 12414 action = ctl_extent_check_lba(lba1, len1, desc->lba_range.lba, 12415 desc->lba_range.len, FALSE); 12416 /* 12417 * A "pass" means that the LBA ranges don't overlap, so 12418 * this doesn't match the user's range criteria. 12419 */ 12420 if (action == CTL_ACTION_PASS) 12421 return (CTL_LUN_PAT_NONE); 12422 } 12423 12424 return (filtered_pattern); 12425} 12426 12427static void 12428ctl_inject_error(struct ctl_lun *lun, union ctl_io *io) 12429{ 12430 struct ctl_error_desc *desc, *desc2; 12431 12432 mtx_assert(&lun->lun_lock, MA_OWNED); 12433 12434 STAILQ_FOREACH_SAFE(desc, &lun->error_list, links, desc2) { 12435 ctl_lun_error_pattern pattern; 12436 /* 12437 * Check to see whether this particular command matches 12438 * the pattern in the descriptor. 12439 */ 12440 pattern = ctl_cmd_pattern_match(&io->scsiio, desc); 12441 if ((pattern & CTL_LUN_PAT_MASK) == CTL_LUN_PAT_NONE) 12442 continue; 12443 12444 switch (desc->lun_error & CTL_LUN_INJ_TYPE) { 12445 case CTL_LUN_INJ_ABORTED: 12446 ctl_set_aborted(&io->scsiio); 12447 break; 12448 case CTL_LUN_INJ_MEDIUM_ERR: 12449 ctl_set_medium_error(&io->scsiio, 12450 (io->io_hdr.flags & CTL_FLAG_DATA_MASK) != 12451 CTL_FLAG_DATA_OUT); 12452 break; 12453 case CTL_LUN_INJ_UA: 12454 /* 29h/00h POWER ON, RESET, OR BUS DEVICE RESET 12455 * OCCURRED */ 12456 ctl_set_ua(&io->scsiio, 0x29, 0x00); 12457 break; 12458 case CTL_LUN_INJ_CUSTOM: 12459 /* 12460 * We're assuming the user knows what he is doing. 12461 * Just copy the sense information without doing 12462 * checks. 12463 */ 12464 bcopy(&desc->custom_sense, &io->scsiio.sense_data, 12465 MIN(sizeof(desc->custom_sense), 12466 sizeof(io->scsiio.sense_data))); 12467 io->scsiio.scsi_status = SCSI_STATUS_CHECK_COND; 12468 io->scsiio.sense_len = SSD_FULL_SIZE; 12469 io->io_hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 12470 break; 12471 case CTL_LUN_INJ_NONE: 12472 default: 12473 /* 12474 * If this is an error injection type we don't know 12475 * about, clear the continuous flag (if it is set) 12476 * so it will get deleted below. 12477 */ 12478 desc->lun_error &= ~CTL_LUN_INJ_CONTINUOUS; 12479 break; 12480 } 12481 /* 12482 * By default, each error injection action is a one-shot 12483 */ 12484 if (desc->lun_error & CTL_LUN_INJ_CONTINUOUS) 12485 continue; 12486 12487 STAILQ_REMOVE(&lun->error_list, desc, ctl_error_desc, links); 12488 12489 free(desc, M_CTL); 12490 } 12491} 12492 12493#ifdef CTL_IO_DELAY 12494static void 12495ctl_datamove_timer_wakeup(void *arg) 12496{ 12497 union ctl_io *io; 12498 12499 io = (union ctl_io *)arg; 12500 12501 ctl_datamove(io); 12502} 12503#endif /* CTL_IO_DELAY */ 12504 12505void 12506ctl_datamove(union ctl_io *io) 12507{ 12508 void (*fe_datamove)(union ctl_io *io); 12509 12510 mtx_assert(&((struct ctl_softc *)CTL_SOFTC(io))->ctl_lock, MA_NOTOWNED); 12511 12512 CTL_DEBUG_PRINT(("ctl_datamove\n")); 12513 12514#ifdef CTL_TIME_IO 12515 if ((time_uptime - io->io_hdr.start_time) > ctl_time_io_secs) { 12516 char str[256]; 12517 char path_str[64]; 12518 struct sbuf sb; 12519 12520 ctl_scsi_path_string(io, path_str, sizeof(path_str)); 12521 sbuf_new(&sb, str, sizeof(str), SBUF_FIXEDLEN); 12522 12523 sbuf_cat(&sb, path_str); 12524 switch (io->io_hdr.io_type) { 12525 case CTL_IO_SCSI: 12526 ctl_scsi_command_string(&io->scsiio, NULL, &sb); 12527 sbuf_printf(&sb, "\n"); 12528 sbuf_cat(&sb, path_str); 12529 sbuf_printf(&sb, "Tag: 0x%04x, type %d\n", 12530 io->scsiio.tag_num, io->scsiio.tag_type); 12531 break; 12532 case CTL_IO_TASK: 12533 sbuf_printf(&sb, "Task I/O type: %d, Tag: 0x%04x, " 12534 "Tag Type: %d\n", io->taskio.task_action, 12535 io->taskio.tag_num, io->taskio.tag_type); 12536 break; 12537 default: 12538 panic("%s: Invalid CTL I/O type %d\n", 12539 __func__, io->io_hdr.io_type); 12540 } 12541 sbuf_cat(&sb, path_str); 12542 sbuf_printf(&sb, "ctl_datamove: %jd seconds\n", 12543 (intmax_t)time_uptime - io->io_hdr.start_time); 12544 sbuf_finish(&sb); 12545 printf("%s", sbuf_data(&sb)); 12546 } 12547#endif /* CTL_TIME_IO */ 12548 12549#ifdef CTL_IO_DELAY 12550 if (io->io_hdr.flags & CTL_FLAG_DELAY_DONE) { 12551 io->io_hdr.flags &= ~CTL_FLAG_DELAY_DONE; 12552 } else { 12553 if ((lun != NULL) 12554 && (lun->delay_info.datamove_delay > 0)) { 12555 12556 callout_init(&io->io_hdr.delay_callout, /*mpsafe*/ 1); 12557 io->io_hdr.flags |= CTL_FLAG_DELAY_DONE; 12558 callout_reset(&io->io_hdr.delay_callout, 12559 lun->delay_info.datamove_delay * hz, 12560 ctl_datamove_timer_wakeup, io); 12561 if (lun->delay_info.datamove_type == 12562 CTL_DELAY_TYPE_ONESHOT) 12563 lun->delay_info.datamove_delay = 0; 12564 return; 12565 } 12566 } 12567#endif 12568 12569 /* 12570 * This command has been aborted. Set the port status, so we fail 12571 * the data move. 12572 */ 12573 if (io->io_hdr.flags & CTL_FLAG_ABORT) { 12574 printf("ctl_datamove: tag 0x%04x on (%u:%u:%u) aborted\n", 12575 io->scsiio.tag_num, io->io_hdr.nexus.initid, 12576 io->io_hdr.nexus.targ_port, 12577 io->io_hdr.nexus.targ_lun); 12578 io->io_hdr.port_status = 31337; 12579 /* 12580 * Note that the backend, in this case, will get the 12581 * callback in its context. In other cases it may get 12582 * called in the frontend's interrupt thread context. 12583 */ 12584 io->scsiio.be_move_done(io); 12585 return; 12586 } 12587 12588 /* Don't confuse frontend with zero length data move. */ 12589 if (io->scsiio.kern_data_len == 0) { 12590 io->scsiio.be_move_done(io); 12591 return; 12592 } 12593 12594 fe_datamove = CTL_PORT(io)->fe_datamove; 12595 fe_datamove(io); 12596} 12597 12598static void 12599ctl_send_datamove_done(union ctl_io *io, int have_lock) 12600{ 12601 union ctl_ha_msg msg; 12602#ifdef CTL_TIME_IO 12603 struct bintime cur_bt; 12604#endif 12605 12606 memset(&msg, 0, sizeof(msg)); 12607 msg.hdr.msg_type = CTL_MSG_DATAMOVE_DONE; 12608 msg.hdr.original_sc = io; 12609 msg.hdr.serializing_sc = io->io_hdr.serializing_sc; 12610 msg.hdr.nexus = io->io_hdr.nexus; 12611 msg.hdr.status = io->io_hdr.status; 12612 msg.scsi.tag_num = io->scsiio.tag_num; 12613 msg.scsi.tag_type = io->scsiio.tag_type; 12614 msg.scsi.scsi_status = io->scsiio.scsi_status; 12615 memcpy(&msg.scsi.sense_data, &io->scsiio.sense_data, 12616 io->scsiio.sense_len); 12617 msg.scsi.sense_len = io->scsiio.sense_len; 12618 msg.scsi.sense_residual = io->scsiio.sense_residual; 12619 msg.scsi.fetd_status = io->io_hdr.port_status; 12620 msg.scsi.residual = io->scsiio.residual; 12621 io->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 12622 if (io->io_hdr.flags & CTL_FLAG_FAILOVER) { 12623 ctl_failover_io(io, /*have_lock*/ have_lock); 12624 return; 12625 } 12626 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, 12627 sizeof(msg.scsi) - sizeof(msg.scsi.sense_data) + 12628 msg.scsi.sense_len, M_WAITOK); 12629 12630#ifdef CTL_TIME_IO 12631 getbinuptime(&cur_bt); 12632 bintime_sub(&cur_bt, &io->io_hdr.dma_start_bt); 12633 bintime_add(&io->io_hdr.dma_bt, &cur_bt); 12634#endif 12635 io->io_hdr.num_dmas++; 12636} 12637 12638/* 12639 * The DMA to the remote side is done, now we need to tell the other side 12640 * we're done so it can continue with its data movement. 12641 */ 12642static void 12643ctl_datamove_remote_write_cb(struct ctl_ha_dt_req *rq) 12644{ 12645 union ctl_io *io; 12646 uint32_t i; 12647 12648 io = rq->context; 12649 12650 if (rq->ret != CTL_HA_STATUS_SUCCESS) { 12651 printf("%s: ISC DMA write failed with error %d", __func__, 12652 rq->ret); 12653 ctl_set_internal_failure(&io->scsiio, 12654 /*sks_valid*/ 1, 12655 /*retry_count*/ rq->ret); 12656 } 12657 12658 ctl_dt_req_free(rq); 12659 12660 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 12661 free(io->io_hdr.local_sglist[i].addr, M_CTL); 12662 free(io->io_hdr.remote_sglist, M_CTL); 12663 io->io_hdr.remote_sglist = NULL; 12664 io->io_hdr.local_sglist = NULL; 12665 12666 /* 12667 * The data is in local and remote memory, so now we need to send 12668 * status (good or back) back to the other side. 12669 */ 12670 ctl_send_datamove_done(io, /*have_lock*/ 0); 12671} 12672 12673/* 12674 * We've moved the data from the host/controller into local memory. Now we 12675 * need to push it over to the remote controller's memory. 12676 */ 12677static int 12678ctl_datamove_remote_dm_write_cb(union ctl_io *io) 12679{ 12680 int retval; 12681 12682 retval = ctl_datamove_remote_xfer(io, CTL_HA_DT_CMD_WRITE, 12683 ctl_datamove_remote_write_cb); 12684 return (retval); 12685} 12686 12687static void 12688ctl_datamove_remote_write(union ctl_io *io) 12689{ 12690 int retval; 12691 void (*fe_datamove)(union ctl_io *io); 12692 12693 /* 12694 * - Get the data from the host/HBA into local memory. 12695 * - DMA memory from the local controller to the remote controller. 12696 * - Send status back to the remote controller. 12697 */ 12698 12699 retval = ctl_datamove_remote_sgl_setup(io); 12700 if (retval != 0) 12701 return; 12702 12703 /* Switch the pointer over so the FETD knows what to do */ 12704 io->scsiio.kern_data_ptr = (uint8_t *)io->io_hdr.local_sglist; 12705 12706 /* 12707 * Use a custom move done callback, since we need to send completion 12708 * back to the other controller, not to the backend on this side. 12709 */ 12710 io->scsiio.be_move_done = ctl_datamove_remote_dm_write_cb; 12711 12712 fe_datamove = CTL_PORT(io)->fe_datamove; 12713 fe_datamove(io); 12714} 12715 12716static int 12717ctl_datamove_remote_dm_read_cb(union ctl_io *io) 12718{ 12719#if 0 12720 char str[256]; 12721 char path_str[64]; 12722 struct sbuf sb; 12723#endif 12724 uint32_t i; 12725 12726 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 12727 free(io->io_hdr.local_sglist[i].addr, M_CTL); 12728 free(io->io_hdr.remote_sglist, M_CTL); 12729 io->io_hdr.remote_sglist = NULL; 12730 io->io_hdr.local_sglist = NULL; 12731 12732#if 0 12733 scsi_path_string(io, path_str, sizeof(path_str)); 12734 sbuf_new(&sb, str, sizeof(str), SBUF_FIXEDLEN); 12735 sbuf_cat(&sb, path_str); 12736 scsi_command_string(&io->scsiio, NULL, &sb); 12737 sbuf_printf(&sb, "\n"); 12738 sbuf_cat(&sb, path_str); 12739 sbuf_printf(&sb, "Tag: 0x%04x, type %d\n", 12740 io->scsiio.tag_num, io->scsiio.tag_type); 12741 sbuf_cat(&sb, path_str); 12742 sbuf_printf(&sb, "%s: flags %#x, status %#x\n", __func__, 12743 io->io_hdr.flags, io->io_hdr.status); 12744 sbuf_finish(&sb); 12745 printk("%s", sbuf_data(&sb)); 12746#endif 12747 12748 12749 /* 12750 * The read is done, now we need to send status (good or bad) back 12751 * to the other side. 12752 */ 12753 ctl_send_datamove_done(io, /*have_lock*/ 0); 12754 12755 return (0); 12756} 12757 12758static void 12759ctl_datamove_remote_read_cb(struct ctl_ha_dt_req *rq) 12760{ 12761 union ctl_io *io; 12762 void (*fe_datamove)(union ctl_io *io); 12763 12764 io = rq->context; 12765 12766 if (rq->ret != CTL_HA_STATUS_SUCCESS) { 12767 printf("%s: ISC DMA read failed with error %d\n", __func__, 12768 rq->ret); 12769 ctl_set_internal_failure(&io->scsiio, 12770 /*sks_valid*/ 1, 12771 /*retry_count*/ rq->ret); 12772 } 12773 12774 ctl_dt_req_free(rq); 12775 12776 /* Switch the pointer over so the FETD knows what to do */ 12777 io->scsiio.kern_data_ptr = (uint8_t *)io->io_hdr.local_sglist; 12778 12779 /* 12780 * Use a custom move done callback, since we need to send completion 12781 * back to the other controller, not to the backend on this side. 12782 */ 12783 io->scsiio.be_move_done = ctl_datamove_remote_dm_read_cb; 12784 12785 /* XXX KDM add checks like the ones in ctl_datamove? */ 12786 12787 fe_datamove = CTL_PORT(io)->fe_datamove; 12788 fe_datamove(io); 12789} 12790 12791static int 12792ctl_datamove_remote_sgl_setup(union ctl_io *io) 12793{ 12794 struct ctl_sg_entry *local_sglist; 12795 uint32_t len_to_go; 12796 int retval; 12797 int i; 12798 12799 retval = 0; 12800 local_sglist = io->io_hdr.local_sglist; 12801 len_to_go = io->scsiio.kern_data_len; 12802 12803 /* 12804 * The difficult thing here is that the size of the various 12805 * S/G segments may be different than the size from the 12806 * remote controller. That'll make it harder when DMAing 12807 * the data back to the other side. 12808 */ 12809 for (i = 0; len_to_go > 0; i++) { 12810 local_sglist[i].len = MIN(len_to_go, CTL_HA_DATAMOVE_SEGMENT); 12811 local_sglist[i].addr = 12812 malloc(local_sglist[i].len, M_CTL, M_WAITOK); 12813 12814 len_to_go -= local_sglist[i].len; 12815 } 12816 /* 12817 * Reset the number of S/G entries accordingly. The original 12818 * number of S/G entries is available in rem_sg_entries. 12819 */ 12820 io->scsiio.kern_sg_entries = i; 12821 12822#if 0 12823 printf("%s: kern_sg_entries = %d\n", __func__, 12824 io->scsiio.kern_sg_entries); 12825 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 12826 printf("%s: sg[%d] = %p, %lu\n", __func__, i, 12827 local_sglist[i].addr, local_sglist[i].len); 12828#endif 12829 12830 return (retval); 12831} 12832 12833static int 12834ctl_datamove_remote_xfer(union ctl_io *io, unsigned command, 12835 ctl_ha_dt_cb callback) 12836{ 12837 struct ctl_ha_dt_req *rq; 12838 struct ctl_sg_entry *remote_sglist, *local_sglist; 12839 uint32_t local_used, remote_used, total_used; 12840 int i, j, isc_ret; 12841 12842 rq = ctl_dt_req_alloc(); 12843 12844 /* 12845 * If we failed to allocate the request, and if the DMA didn't fail 12846 * anyway, set busy status. This is just a resource allocation 12847 * failure. 12848 */ 12849 if ((rq == NULL) 12850 && ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE && 12851 (io->io_hdr.status & CTL_STATUS_MASK) != CTL_SUCCESS)) 12852 ctl_set_busy(&io->scsiio); 12853 12854 if ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE && 12855 (io->io_hdr.status & CTL_STATUS_MASK) != CTL_SUCCESS) { 12856 12857 if (rq != NULL) 12858 ctl_dt_req_free(rq); 12859 12860 /* 12861 * The data move failed. We need to return status back 12862 * to the other controller. No point in trying to DMA 12863 * data to the remote controller. 12864 */ 12865 12866 ctl_send_datamove_done(io, /*have_lock*/ 0); 12867 12868 return (1); 12869 } 12870 12871 local_sglist = io->io_hdr.local_sglist; 12872 remote_sglist = io->io_hdr.remote_sglist; 12873 local_used = 0; 12874 remote_used = 0; 12875 total_used = 0; 12876 12877 /* 12878 * Pull/push the data over the wire from/to the other controller. 12879 * This takes into account the possibility that the local and 12880 * remote sglists may not be identical in terms of the size of 12881 * the elements and the number of elements. 12882 * 12883 * One fundamental assumption here is that the length allocated for 12884 * both the local and remote sglists is identical. Otherwise, we've 12885 * essentially got a coding error of some sort. 12886 */ 12887 isc_ret = CTL_HA_STATUS_SUCCESS; 12888 for (i = 0, j = 0; total_used < io->scsiio.kern_data_len; ) { 12889 uint32_t cur_len; 12890 uint8_t *tmp_ptr; 12891 12892 rq->command = command; 12893 rq->context = io; 12894 12895 /* 12896 * Both pointers should be aligned. But it is possible 12897 * that the allocation length is not. They should both 12898 * also have enough slack left over at the end, though, 12899 * to round up to the next 8 byte boundary. 12900 */ 12901 cur_len = MIN(local_sglist[i].len - local_used, 12902 remote_sglist[j].len - remote_used); 12903 rq->size = cur_len; 12904 12905 tmp_ptr = (uint8_t *)local_sglist[i].addr; 12906 tmp_ptr += local_used; 12907 12908#if 0 12909 /* Use physical addresses when talking to ISC hardware */ 12910 if ((io->io_hdr.flags & CTL_FLAG_BUS_ADDR) == 0) { 12911 /* XXX KDM use busdma */ 12912 rq->local = vtophys(tmp_ptr); 12913 } else 12914 rq->local = tmp_ptr; 12915#else 12916 KASSERT((io->io_hdr.flags & CTL_FLAG_BUS_ADDR) == 0, 12917 ("HA does not support BUS_ADDR")); 12918 rq->local = tmp_ptr; 12919#endif 12920 12921 tmp_ptr = (uint8_t *)remote_sglist[j].addr; 12922 tmp_ptr += remote_used; 12923 rq->remote = tmp_ptr; 12924 12925 rq->callback = NULL; 12926 12927 local_used += cur_len; 12928 if (local_used >= local_sglist[i].len) { 12929 i++; 12930 local_used = 0; 12931 } 12932 12933 remote_used += cur_len; 12934 if (remote_used >= remote_sglist[j].len) { 12935 j++; 12936 remote_used = 0; 12937 } 12938 total_used += cur_len; 12939 12940 if (total_used >= io->scsiio.kern_data_len) 12941 rq->callback = callback; 12942 12943#if 0 12944 printf("%s: %s: local %p remote %p size %d\n", __func__, 12945 (command == CTL_HA_DT_CMD_WRITE) ? "WRITE" : "READ", 12946 rq->local, rq->remote, rq->size); 12947#endif 12948 12949 isc_ret = ctl_dt_single(rq); 12950 if (isc_ret > CTL_HA_STATUS_SUCCESS) 12951 break; 12952 } 12953 if (isc_ret != CTL_HA_STATUS_WAIT) { 12954 rq->ret = isc_ret; 12955 callback(rq); 12956 } 12957 12958 return (0); 12959} 12960 12961static void 12962ctl_datamove_remote_read(union ctl_io *io) 12963{ 12964 int retval; 12965 uint32_t i; 12966 12967 /* 12968 * This will send an error to the other controller in the case of a 12969 * failure. 12970 */ 12971 retval = ctl_datamove_remote_sgl_setup(io); 12972 if (retval != 0) 12973 return; 12974 12975 retval = ctl_datamove_remote_xfer(io, CTL_HA_DT_CMD_READ, 12976 ctl_datamove_remote_read_cb); 12977 if (retval != 0) { 12978 /* 12979 * Make sure we free memory if there was an error.. The 12980 * ctl_datamove_remote_xfer() function will send the 12981 * datamove done message, or call the callback with an 12982 * error if there is a problem. 12983 */ 12984 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 12985 free(io->io_hdr.local_sglist[i].addr, M_CTL); 12986 free(io->io_hdr.remote_sglist, M_CTL); 12987 io->io_hdr.remote_sglist = NULL; 12988 io->io_hdr.local_sglist = NULL; 12989 } 12990} 12991 12992/* 12993 * Process a datamove request from the other controller. This is used for 12994 * XFER mode only, not SER_ONLY mode. For writes, we DMA into local memory 12995 * first. Once that is complete, the data gets DMAed into the remote 12996 * controller's memory. For reads, we DMA from the remote controller's 12997 * memory into our memory first, and then move it out to the FETD. 12998 */ 12999static void 13000ctl_datamove_remote(union ctl_io *io) 13001{ 13002 13003 mtx_assert(&((struct ctl_softc *)CTL_SOFTC(io))->ctl_lock, MA_NOTOWNED); 13004 13005 if (io->io_hdr.flags & CTL_FLAG_FAILOVER) { 13006 ctl_failover_io(io, /*have_lock*/ 0); 13007 return; 13008 } 13009 13010 /* 13011 * Note that we look for an aborted I/O here, but don't do some of 13012 * the other checks that ctl_datamove() normally does. 13013 * We don't need to run the datamove delay code, since that should 13014 * have been done if need be on the other controller. 13015 */ 13016 if (io->io_hdr.flags & CTL_FLAG_ABORT) { 13017 printf("%s: tag 0x%04x on (%u:%u:%u) aborted\n", __func__, 13018 io->scsiio.tag_num, io->io_hdr.nexus.initid, 13019 io->io_hdr.nexus.targ_port, 13020 io->io_hdr.nexus.targ_lun); 13021 io->io_hdr.port_status = 31338; 13022 ctl_send_datamove_done(io, /*have_lock*/ 0); 13023 return; 13024 } 13025 13026 if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_OUT) 13027 ctl_datamove_remote_write(io); 13028 else if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_IN) 13029 ctl_datamove_remote_read(io); 13030 else { 13031 io->io_hdr.port_status = 31339; 13032 ctl_send_datamove_done(io, /*have_lock*/ 0); 13033 } 13034} 13035 13036static void 13037ctl_process_done(union ctl_io *io) 13038{ 13039 struct ctl_softc *softc = CTL_SOFTC(io); 13040 struct ctl_lun *lun = CTL_LUN(io); 13041 void (*fe_done)(union ctl_io *io); 13042 union ctl_ha_msg msg; 13043 uint32_t targ_port = io->io_hdr.nexus.targ_port; 13044 13045 CTL_DEBUG_PRINT(("ctl_process_done\n")); 13046 fe_done = softc->ctl_ports[targ_port]->fe_done; 13047 13048#ifdef CTL_TIME_IO 13049 if ((time_uptime - io->io_hdr.start_time) > ctl_time_io_secs) { 13050 char str[256]; 13051 char path_str[64]; 13052 struct sbuf sb; 13053 13054 ctl_scsi_path_string(io, path_str, sizeof(path_str)); 13055 sbuf_new(&sb, str, sizeof(str), SBUF_FIXEDLEN); 13056 13057 sbuf_cat(&sb, path_str); 13058 switch (io->io_hdr.io_type) { 13059 case CTL_IO_SCSI: 13060 ctl_scsi_command_string(&io->scsiio, NULL, &sb); 13061 sbuf_printf(&sb, "\n"); 13062 sbuf_cat(&sb, path_str); 13063 sbuf_printf(&sb, "Tag: 0x%04x, type %d\n", 13064 io->scsiio.tag_num, io->scsiio.tag_type); 13065 break; 13066 case CTL_IO_TASK: 13067 sbuf_printf(&sb, "Task I/O type: %d, Tag: 0x%04x, " 13068 "Tag Type: %d\n", io->taskio.task_action, 13069 io->taskio.tag_num, io->taskio.tag_type); 13070 break; 13071 default: 13072 panic("%s: Invalid CTL I/O type %d\n", 13073 __func__, io->io_hdr.io_type); 13074 } 13075 sbuf_cat(&sb, path_str); 13076 sbuf_printf(&sb, "ctl_process_done: %jd seconds\n", 13077 (intmax_t)time_uptime - io->io_hdr.start_time); 13078 sbuf_finish(&sb); 13079 printf("%s", sbuf_data(&sb)); 13080 } 13081#endif /* CTL_TIME_IO */ 13082 13083 switch (io->io_hdr.io_type) { 13084 case CTL_IO_SCSI: 13085 break; 13086 case CTL_IO_TASK: 13087 if (ctl_debug & CTL_DEBUG_INFO) 13088 ctl_io_error_print(io, NULL); 13089 fe_done(io); 13090 return; 13091 default: 13092 panic("%s: Invalid CTL I/O type %d\n", 13093 __func__, io->io_hdr.io_type); 13094 } 13095 13096 if (lun == NULL) { 13097 CTL_DEBUG_PRINT(("NULL LUN for lun %d\n", 13098 io->io_hdr.nexus.targ_mapped_lun)); 13099 goto bailout; 13100 } 13101 13102 mtx_lock(&lun->lun_lock); 13103 13104 /* 13105 * Check to see if we have any informational exception and status 13106 * of this command can be modified to report it in form of either 13107 * RECOVERED ERROR or NO SENSE, depending on MRIE mode page field. 13108 */ 13109 if (lun->ie_reported == 0 && lun->ie_asc != 0 && 13110 io->io_hdr.status == CTL_SUCCESS && 13111 (io->io_hdr.flags & CTL_FLAG_STATUS_SENT) == 0) { 13112 uint8_t mrie = lun->MODE_IE.mrie; 13113 uint8_t per = ((lun->MODE_RWER.byte3 & SMS_RWER_PER) || 13114 (lun->MODE_VER.byte3 & SMS_VER_PER)); 13115 if (((mrie == SIEP_MRIE_REC_COND && per) || 13116 mrie == SIEP_MRIE_REC_UNCOND || 13117 mrie == SIEP_MRIE_NO_SENSE) && 13118 (ctl_get_cmd_entry(&io->scsiio, NULL)->flags & 13119 CTL_CMD_FLAG_NO_SENSE) == 0) { 13120 ctl_set_sense(&io->scsiio, 13121 /*current_error*/ 1, 13122 /*sense_key*/ (mrie == SIEP_MRIE_NO_SENSE) ? 13123 SSD_KEY_NO_SENSE : SSD_KEY_RECOVERED_ERROR, 13124 /*asc*/ lun->ie_asc, 13125 /*ascq*/ lun->ie_ascq, 13126 SSD_ELEM_NONE); 13127 lun->ie_reported = 1; 13128 } 13129 } else if (lun->ie_reported < 0) 13130 lun->ie_reported = 0; 13131 13132 /* 13133 * Check to see if we have any errors to inject here. We only 13134 * inject errors for commands that don't already have errors set. 13135 */ 13136 if (!STAILQ_EMPTY(&lun->error_list) && 13137 ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS) && 13138 ((io->io_hdr.flags & CTL_FLAG_STATUS_SENT) == 0)) 13139 ctl_inject_error(lun, io); 13140 13141 /* 13142 * XXX KDM how do we treat commands that aren't completed 13143 * successfully? 13144 * 13145 * XXX KDM should we also track I/O latency? 13146 */ 13147 if ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS && 13148 io->io_hdr.io_type == CTL_IO_SCSI) { 13149#ifdef CTL_TIME_IO 13150 struct bintime cur_bt; 13151#endif 13152 int type; 13153 13154 if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == 13155 CTL_FLAG_DATA_IN) 13156 type = CTL_STATS_READ; 13157 else if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == 13158 CTL_FLAG_DATA_OUT) 13159 type = CTL_STATS_WRITE; 13160 else 13161 type = CTL_STATS_NO_IO; 13162 13163 lun->stats.ports[targ_port].bytes[type] += 13164 io->scsiio.kern_total_len; 13165 lun->stats.ports[targ_port].operations[type]++; 13166#ifdef CTL_TIME_IO 13167 bintime_add(&lun->stats.ports[targ_port].dma_time[type], 13168 &io->io_hdr.dma_bt); 13169 getbinuptime(&cur_bt); 13170 bintime_sub(&cur_bt, &io->io_hdr.start_bt); 13171 bintime_add(&lun->stats.ports[targ_port].time[type], &cur_bt); 13172#endif 13173 lun->stats.ports[targ_port].num_dmas[type] += 13174 io->io_hdr.num_dmas; 13175 } 13176 13177 /* 13178 * Remove this from the OOA queue. 13179 */ 13180 TAILQ_REMOVE(&lun->ooa_queue, &io->io_hdr, ooa_links); 13181#ifdef CTL_TIME_IO 13182 if (TAILQ_EMPTY(&lun->ooa_queue)) 13183 lun->last_busy = getsbinuptime(); 13184#endif 13185 13186 /* 13187 * Run through the blocked queue on this LUN and see if anything 13188 * has become unblocked, now that this transaction is done. 13189 */ 13190 ctl_check_blocked(lun); 13191 13192 /* 13193 * If the LUN has been invalidated, free it if there is nothing 13194 * left on its OOA queue. 13195 */ 13196 if ((lun->flags & CTL_LUN_INVALID) 13197 && TAILQ_EMPTY(&lun->ooa_queue)) { 13198 mtx_unlock(&lun->lun_lock); 13199 mtx_lock(&softc->ctl_lock); 13200 ctl_free_lun(lun); 13201 mtx_unlock(&softc->ctl_lock); 13202 } else 13203 mtx_unlock(&lun->lun_lock); 13204 13205bailout: 13206 13207 /* 13208 * If this command has been aborted, make sure we set the status 13209 * properly. The FETD is responsible for freeing the I/O and doing 13210 * whatever it needs to do to clean up its state. 13211 */ 13212 if (io->io_hdr.flags & CTL_FLAG_ABORT) 13213 ctl_set_task_aborted(&io->scsiio); 13214 13215 /* 13216 * If enabled, print command error status. 13217 */ 13218 if ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_SUCCESS && 13219 (ctl_debug & CTL_DEBUG_INFO) != 0) 13220 ctl_io_error_print(io, NULL); 13221 13222 /* 13223 * Tell the FETD or the other shelf controller we're done with this 13224 * command. Note that only SCSI commands get to this point. Task 13225 * management commands are completed above. 13226 */ 13227 if ((softc->ha_mode != CTL_HA_MODE_XFER) && 13228 (io->io_hdr.flags & CTL_FLAG_SENT_2OTHER_SC)) { 13229 memset(&msg, 0, sizeof(msg)); 13230 msg.hdr.msg_type = CTL_MSG_FINISH_IO; 13231 msg.hdr.serializing_sc = io->io_hdr.serializing_sc; 13232 msg.hdr.nexus = io->io_hdr.nexus; 13233 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, 13234 sizeof(msg.scsi) - sizeof(msg.scsi.sense_data), 13235 M_WAITOK); 13236 } 13237 13238 fe_done(io); 13239} 13240 13241#ifdef CTL_WITH_CA 13242/* 13243 * Front end should call this if it doesn't do autosense. When the request 13244 * sense comes back in from the initiator, we'll dequeue this and send it. 13245 */ 13246int 13247ctl_queue_sense(union ctl_io *io) 13248{ 13249 struct ctl_softc *softc = CTL_SOFTC(io); 13250 struct ctl_port *port = CTL_PORT(io); 13251 struct ctl_lun *lun; 13252 uint32_t initidx, targ_lun; 13253 13254 CTL_DEBUG_PRINT(("ctl_queue_sense\n")); 13255 13256 targ_lun = ctl_lun_map_from_port(port, io->io_hdr.nexus.targ_lun); 13257 13258 /* 13259 * LUN lookup will likely move to the ctl_work_thread() once we 13260 * have our new queueing infrastructure (that doesn't put things on 13261 * a per-LUN queue initially). That is so that we can handle 13262 * things like an INQUIRY to a LUN that we don't have enabled. We 13263 * can't deal with that right now. 13264 * If we don't have a LUN for this, just toss the sense information. 13265 */ 13266 mtx_lock(&softc->ctl_lock); 13267 if (targ_lun >= CTL_MAX_LUNS || 13268 (lun = softc->ctl_luns[targ_lun]) == NULL) { 13269 mtx_unlock(&softc->ctl_lock); 13270 goto bailout; 13271 } 13272 mtx_lock(&lun->lun_lock); 13273 mtx_unlock(&softc->ctl_lock); 13274 13275 /* 13276 * Already have CA set for this LUN...toss the sense information. 13277 */ 13278 initidx = ctl_get_initindex(&io->io_hdr.nexus); 13279 if (ctl_is_set(lun->have_ca, initidx)) { 13280 mtx_unlock(&lun->lun_lock); 13281 goto bailout; 13282 } 13283 13284 memcpy(&lun->pending_sense[initidx], &io->scsiio.sense_data, 13285 MIN(sizeof(lun->pending_sense[initidx]), 13286 sizeof(io->scsiio.sense_data))); 13287 ctl_set_mask(lun->have_ca, initidx); 13288 mtx_unlock(&lun->lun_lock); 13289 13290bailout: 13291 ctl_free_io(io); 13292 return (CTL_RETVAL_COMPLETE); 13293} 13294#endif 13295 13296/* 13297 * Primary command inlet from frontend ports. All SCSI and task I/O 13298 * requests must go through this function. 13299 */ 13300int 13301ctl_queue(union ctl_io *io) 13302{ 13303 struct ctl_port *port = CTL_PORT(io); 13304 13305 CTL_DEBUG_PRINT(("ctl_queue cdb[0]=%02X\n", io->scsiio.cdb[0])); 13306 13307#ifdef CTL_TIME_IO 13308 io->io_hdr.start_time = time_uptime; 13309 getbinuptime(&io->io_hdr.start_bt); 13310#endif /* CTL_TIME_IO */ 13311 13312 /* Map FE-specific LUN ID into global one. */ 13313 io->io_hdr.nexus.targ_mapped_lun = 13314 ctl_lun_map_from_port(port, io->io_hdr.nexus.targ_lun); 13315 13316 switch (io->io_hdr.io_type) { 13317 case CTL_IO_SCSI: 13318 case CTL_IO_TASK: 13319 if (ctl_debug & CTL_DEBUG_CDB) 13320 ctl_io_print(io); 13321 ctl_enqueue_incoming(io); 13322 break; 13323 default: 13324 printf("ctl_queue: unknown I/O type %d\n", io->io_hdr.io_type); 13325 return (EINVAL); 13326 } 13327 13328 return (CTL_RETVAL_COMPLETE); 13329} 13330 13331#ifdef CTL_IO_DELAY 13332static void 13333ctl_done_timer_wakeup(void *arg) 13334{ 13335 union ctl_io *io; 13336 13337 io = (union ctl_io *)arg; 13338 ctl_done(io); 13339} 13340#endif /* CTL_IO_DELAY */ 13341 13342void 13343ctl_serseq_done(union ctl_io *io) 13344{ 13345 struct ctl_lun *lun = CTL_LUN(io);; 13346 13347 if (lun->be_lun == NULL || 13348 lun->be_lun->serseq == CTL_LUN_SERSEQ_OFF) 13349 return; 13350 mtx_lock(&lun->lun_lock); 13351 io->io_hdr.flags |= CTL_FLAG_SERSEQ_DONE; 13352 ctl_check_blocked(lun); 13353 mtx_unlock(&lun->lun_lock); 13354} 13355 13356void 13357ctl_done(union ctl_io *io) 13358{ 13359 13360 /* 13361 * Enable this to catch duplicate completion issues. 13362 */ 13363#if 0 13364 if (io->io_hdr.flags & CTL_FLAG_ALREADY_DONE) { 13365 printf("%s: type %d msg %d cdb %x iptl: " 13366 "%u:%u:%u tag 0x%04x " 13367 "flag %#x status %x\n", 13368 __func__, 13369 io->io_hdr.io_type, 13370 io->io_hdr.msg_type, 13371 io->scsiio.cdb[0], 13372 io->io_hdr.nexus.initid, 13373 io->io_hdr.nexus.targ_port, 13374 io->io_hdr.nexus.targ_lun, 13375 (io->io_hdr.io_type == 13376 CTL_IO_TASK) ? 13377 io->taskio.tag_num : 13378 io->scsiio.tag_num, 13379 io->io_hdr.flags, 13380 io->io_hdr.status); 13381 } else 13382 io->io_hdr.flags |= CTL_FLAG_ALREADY_DONE; 13383#endif 13384 13385 /* 13386 * This is an internal copy of an I/O, and should not go through 13387 * the normal done processing logic. 13388 */ 13389 if (io->io_hdr.flags & CTL_FLAG_INT_COPY) 13390 return; 13391 13392#ifdef CTL_IO_DELAY 13393 if (io->io_hdr.flags & CTL_FLAG_DELAY_DONE) { 13394 io->io_hdr.flags &= ~CTL_FLAG_DELAY_DONE; 13395 } else { 13396 struct ctl_lun *lun = CTL_LUN(io); 13397 13398 if ((lun != NULL) 13399 && (lun->delay_info.done_delay > 0)) { 13400 13401 callout_init(&io->io_hdr.delay_callout, /*mpsafe*/ 1); 13402 io->io_hdr.flags |= CTL_FLAG_DELAY_DONE; 13403 callout_reset(&io->io_hdr.delay_callout, 13404 lun->delay_info.done_delay * hz, 13405 ctl_done_timer_wakeup, io); 13406 if (lun->delay_info.done_type == CTL_DELAY_TYPE_ONESHOT) 13407 lun->delay_info.done_delay = 0; 13408 return; 13409 } 13410 } 13411#endif /* CTL_IO_DELAY */ 13412 13413 ctl_enqueue_done(io); 13414} 13415 13416static void 13417ctl_work_thread(void *arg) 13418{ 13419 struct ctl_thread *thr = (struct ctl_thread *)arg; 13420 struct ctl_softc *softc = thr->ctl_softc; 13421 union ctl_io *io; 13422 int retval; 13423 13424 CTL_DEBUG_PRINT(("ctl_work_thread starting\n")); 13425 13426 for (;;) { 13427 /* 13428 * We handle the queues in this order: 13429 * - ISC 13430 * - done queue (to free up resources, unblock other commands) 13431 * - RtR queue 13432 * - incoming queue 13433 * 13434 * If those queues are empty, we break out of the loop and 13435 * go to sleep. 13436 */ 13437 mtx_lock(&thr->queue_lock); 13438 io = (union ctl_io *)STAILQ_FIRST(&thr->isc_queue); 13439 if (io != NULL) { 13440 STAILQ_REMOVE_HEAD(&thr->isc_queue, links); 13441 mtx_unlock(&thr->queue_lock); 13442 ctl_handle_isc(io); 13443 continue; 13444 } 13445 io = (union ctl_io *)STAILQ_FIRST(&thr->done_queue); 13446 if (io != NULL) { 13447 STAILQ_REMOVE_HEAD(&thr->done_queue, links); 13448 /* clear any blocked commands, call fe_done */ 13449 mtx_unlock(&thr->queue_lock); 13450 ctl_process_done(io); 13451 continue; 13452 } 13453 io = (union ctl_io *)STAILQ_FIRST(&thr->incoming_queue); 13454 if (io != NULL) { 13455 STAILQ_REMOVE_HEAD(&thr->incoming_queue, links); 13456 mtx_unlock(&thr->queue_lock); 13457 if (io->io_hdr.io_type == CTL_IO_TASK) 13458 ctl_run_task(io); 13459 else 13460 ctl_scsiio_precheck(softc, &io->scsiio); 13461 continue; 13462 } 13463 io = (union ctl_io *)STAILQ_FIRST(&thr->rtr_queue); 13464 if (io != NULL) { 13465 STAILQ_REMOVE_HEAD(&thr->rtr_queue, links); 13466 mtx_unlock(&thr->queue_lock); 13467 retval = ctl_scsiio(&io->scsiio); 13468 if (retval != CTL_RETVAL_COMPLETE) 13469 CTL_DEBUG_PRINT(("ctl_scsiio failed\n")); 13470 continue; 13471 } 13472 13473 /* Sleep until we have something to do. */ 13474 mtx_sleep(thr, &thr->queue_lock, PDROP | PRIBIO, "-", 0); 13475 } 13476} 13477 13478static void 13479ctl_lun_thread(void *arg) 13480{ 13481 struct ctl_softc *softc = (struct ctl_softc *)arg; 13482 struct ctl_be_lun *be_lun; 13483 13484 CTL_DEBUG_PRINT(("ctl_lun_thread starting\n")); 13485 13486 for (;;) { 13487 mtx_lock(&softc->ctl_lock); 13488 be_lun = STAILQ_FIRST(&softc->pending_lun_queue); 13489 if (be_lun != NULL) { 13490 STAILQ_REMOVE_HEAD(&softc->pending_lun_queue, links); 13491 mtx_unlock(&softc->ctl_lock); 13492 ctl_create_lun(be_lun); 13493 continue; 13494 } 13495 13496 /* Sleep until we have something to do. */ 13497 mtx_sleep(&softc->pending_lun_queue, &softc->ctl_lock, 13498 PDROP | PRIBIO, "-", 0); 13499 } 13500} 13501 13502static void 13503ctl_thresh_thread(void *arg) 13504{ 13505 struct ctl_softc *softc = (struct ctl_softc *)arg; 13506 struct ctl_lun *lun; 13507 struct ctl_logical_block_provisioning_page *page; 13508 const char *attr; 13509 union ctl_ha_msg msg; 13510 uint64_t thres, val; 13511 int i, e, set; 13512 13513 CTL_DEBUG_PRINT(("ctl_thresh_thread starting\n")); 13514 13515 for (;;) { 13516 mtx_lock(&softc->ctl_lock); 13517 STAILQ_FOREACH(lun, &softc->lun_list, links) { 13518 if ((lun->flags & CTL_LUN_DISABLED) || 13519 (lun->flags & CTL_LUN_NO_MEDIA) || 13520 lun->backend->lun_attr == NULL) 13521 continue; 13522 if ((lun->flags & CTL_LUN_PRIMARY_SC) == 0 && 13523 softc->ha_mode == CTL_HA_MODE_XFER) 13524 continue; 13525 if ((lun->MODE_RWER.byte8 & SMS_RWER_LBPERE) == 0) 13526 continue; 13527 e = 0; 13528 page = &lun->MODE_LBP; 13529 for (i = 0; i < CTL_NUM_LBP_THRESH; i++) { 13530 if ((page->descr[i].flags & SLBPPD_ENABLED) == 0) 13531 continue; 13532 thres = scsi_4btoul(page->descr[i].count); 13533 thres <<= CTL_LBP_EXPONENT; 13534 switch (page->descr[i].resource) { 13535 case 0x01: 13536 attr = "blocksavail"; 13537 break; 13538 case 0x02: 13539 attr = "blocksused"; 13540 break; 13541 case 0xf1: 13542 attr = "poolblocksavail"; 13543 break; 13544 case 0xf2: 13545 attr = "poolblocksused"; 13546 break; 13547 default: 13548 continue; 13549 } 13550 mtx_unlock(&softc->ctl_lock); // XXX 13551 val = lun->backend->lun_attr( 13552 lun->be_lun->be_lun, attr); 13553 mtx_lock(&softc->ctl_lock); 13554 if (val == UINT64_MAX) 13555 continue; 13556 if ((page->descr[i].flags & SLBPPD_ARMING_MASK) 13557 == SLBPPD_ARMING_INC) 13558 e = (val >= thres); 13559 else 13560 e = (val <= thres); 13561 if (e) 13562 break; 13563 } 13564 mtx_lock(&lun->lun_lock); 13565 if (e) { 13566 scsi_u64to8b((uint8_t *)&page->descr[i] - 13567 (uint8_t *)page, lun->ua_tpt_info); 13568 if (lun->lasttpt == 0 || 13569 time_uptime - lun->lasttpt >= CTL_LBP_UA_PERIOD) { 13570 lun->lasttpt = time_uptime; 13571 ctl_est_ua_all(lun, -1, CTL_UA_THIN_PROV_THRES); 13572 set = 1; 13573 } else 13574 set = 0; 13575 } else { 13576 lun->lasttpt = 0; 13577 ctl_clr_ua_all(lun, -1, CTL_UA_THIN_PROV_THRES); 13578 set = -1; 13579 } 13580 mtx_unlock(&lun->lun_lock); 13581 if (set != 0 && 13582 lun->ctl_softc->ha_mode == CTL_HA_MODE_XFER) { 13583 /* Send msg to other side. */ 13584 bzero(&msg.ua, sizeof(msg.ua)); 13585 msg.hdr.msg_type = CTL_MSG_UA; 13586 msg.hdr.nexus.initid = -1; 13587 msg.hdr.nexus.targ_port = -1; 13588 msg.hdr.nexus.targ_lun = lun->lun; 13589 msg.hdr.nexus.targ_mapped_lun = lun->lun; 13590 msg.ua.ua_all = 1; 13591 msg.ua.ua_set = (set > 0); 13592 msg.ua.ua_type = CTL_UA_THIN_PROV_THRES; 13593 memcpy(msg.ua.ua_info, lun->ua_tpt_info, 8); 13594 mtx_unlock(&softc->ctl_lock); // XXX 13595 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, 13596 sizeof(msg.ua), M_WAITOK); 13597 mtx_lock(&softc->ctl_lock); 13598 } 13599 } 13600 mtx_unlock(&softc->ctl_lock); 13601 pause("-", CTL_LBP_PERIOD * hz); 13602 } 13603} 13604 13605static void 13606ctl_enqueue_incoming(union ctl_io *io) 13607{ 13608 struct ctl_softc *softc = CTL_SOFTC(io); 13609 struct ctl_thread *thr; 13610 u_int idx; 13611 13612 idx = (io->io_hdr.nexus.targ_port * 127 + 13613 io->io_hdr.nexus.initid) % worker_threads; 13614 thr = &softc->threads[idx]; 13615 mtx_lock(&thr->queue_lock); 13616 STAILQ_INSERT_TAIL(&thr->incoming_queue, &io->io_hdr, links); 13617 mtx_unlock(&thr->queue_lock); 13618 wakeup(thr); 13619} 13620 13621static void 13622ctl_enqueue_rtr(union ctl_io *io) 13623{ 13624 struct ctl_softc *softc = CTL_SOFTC(io); 13625 struct ctl_thread *thr; 13626 13627 thr = &softc->threads[io->io_hdr.nexus.targ_mapped_lun % worker_threads]; 13628 mtx_lock(&thr->queue_lock); 13629 STAILQ_INSERT_TAIL(&thr->rtr_queue, &io->io_hdr, links); 13630 mtx_unlock(&thr->queue_lock); 13631 wakeup(thr); 13632} 13633 13634static void 13635ctl_enqueue_done(union ctl_io *io) 13636{ 13637 struct ctl_softc *softc = CTL_SOFTC(io); 13638 struct ctl_thread *thr; 13639 13640 thr = &softc->threads[io->io_hdr.nexus.targ_mapped_lun % worker_threads]; 13641 mtx_lock(&thr->queue_lock); 13642 STAILQ_INSERT_TAIL(&thr->done_queue, &io->io_hdr, links); 13643 mtx_unlock(&thr->queue_lock); 13644 wakeup(thr); 13645} 13646 13647static void 13648ctl_enqueue_isc(union ctl_io *io) 13649{ 13650 struct ctl_softc *softc = CTL_SOFTC(io); 13651 struct ctl_thread *thr; 13652 13653 thr = &softc->threads[io->io_hdr.nexus.targ_mapped_lun % worker_threads]; 13654 mtx_lock(&thr->queue_lock); 13655 STAILQ_INSERT_TAIL(&thr->isc_queue, &io->io_hdr, links); 13656 mtx_unlock(&thr->queue_lock); 13657 wakeup(thr); 13658} 13659 13660/* 13661 * vim: ts=8 13662 */ 13663