ctl.c revision 312570
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/11/sys/cam/ctl/ctl.c 312570 2017-01-21 08:29:40Z 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; 405SYSCTL_INT(_kern_cam_ctl, OID_AUTO, worker_threads, CTLFLAG_RDTUN, 406 &worker_threads, 1, "Number of worker threads"); 407static int ctl_debug = CTL_DEBUG_NONE; 408SYSCTL_INT(_kern_cam_ctl, OID_AUTO, debug, CTLFLAG_RWTUN, 409 &ctl_debug, 0, "Enabled debug flags"); 410 411/* 412 * Supported pages (0x00), Serial number (0x80), Device ID (0x83), 413 * Extended INQUIRY Data (0x86), Mode Page Policy (0x87), 414 * SCSI Ports (0x88), Third-party Copy (0x8F), Block limits (0xB0), 415 * Block Device Characteristics (0xB1) and Logical Block Provisioning (0xB2) 416 */ 417#define SCSI_EVPD_NUM_SUPPORTED_PAGES 10 418 419static void ctl_isc_event_handler(ctl_ha_channel chanel, ctl_ha_event event, 420 int param); 421static void ctl_copy_sense_data(union ctl_ha_msg *src, union ctl_io *dest); 422static void ctl_copy_sense_data_back(union ctl_io *src, union ctl_ha_msg *dest); 423static int ctl_init(void); 424void ctl_shutdown(void); 425static int ctl_open(struct cdev *dev, int flags, int fmt, struct thread *td); 426static int ctl_close(struct cdev *dev, int flags, int fmt, struct thread *td); 427static int ctl_serialize_other_sc_cmd(struct ctl_scsiio *ctsio); 428static void ctl_ioctl_fill_ooa(struct ctl_lun *lun, uint32_t *cur_fill_num, 429 struct ctl_ooa *ooa_hdr, 430 struct ctl_ooa_entry *kern_entries); 431static int ctl_ioctl(struct cdev *dev, u_long cmd, caddr_t addr, int flag, 432 struct thread *td); 433static int ctl_alloc_lun(struct ctl_softc *ctl_softc, struct ctl_lun *lun, 434 struct ctl_be_lun *be_lun); 435static int ctl_free_lun(struct ctl_lun *lun); 436static void ctl_create_lun(struct ctl_be_lun *be_lun); 437static struct ctl_port * ctl_io_port(struct ctl_io_hdr *io_hdr); 438 439static int ctl_do_mode_select(union ctl_io *io); 440static int ctl_pro_preempt(struct ctl_softc *softc, struct ctl_lun *lun, 441 uint64_t res_key, uint64_t sa_res_key, 442 uint8_t type, uint32_t residx, 443 struct ctl_scsiio *ctsio, 444 struct scsi_per_res_out *cdb, 445 struct scsi_per_res_out_parms* param); 446static void ctl_pro_preempt_other(struct ctl_lun *lun, 447 union ctl_ha_msg *msg); 448static void ctl_hndl_per_res_out_on_other_sc(union ctl_ha_msg *msg); 449static int ctl_inquiry_evpd_supported(struct ctl_scsiio *ctsio, int alloc_len); 450static int ctl_inquiry_evpd_serial(struct ctl_scsiio *ctsio, int alloc_len); 451static int ctl_inquiry_evpd_devid(struct ctl_scsiio *ctsio, int alloc_len); 452static int ctl_inquiry_evpd_eid(struct ctl_scsiio *ctsio, int alloc_len); 453static int ctl_inquiry_evpd_mpp(struct ctl_scsiio *ctsio, int alloc_len); 454static int ctl_inquiry_evpd_scsi_ports(struct ctl_scsiio *ctsio, 455 int alloc_len); 456static int ctl_inquiry_evpd_block_limits(struct ctl_scsiio *ctsio, 457 int alloc_len); 458static int ctl_inquiry_evpd_bdc(struct ctl_scsiio *ctsio, int alloc_len); 459static int ctl_inquiry_evpd_lbp(struct ctl_scsiio *ctsio, int alloc_len); 460static int ctl_inquiry_evpd(struct ctl_scsiio *ctsio); 461static int ctl_inquiry_std(struct ctl_scsiio *ctsio); 462static int ctl_get_lba_len(union ctl_io *io, uint64_t *lba, uint64_t *len); 463static ctl_action ctl_extent_check(union ctl_io *io1, union ctl_io *io2, 464 bool seq); 465static ctl_action ctl_extent_check_seq(union ctl_io *io1, union ctl_io *io2); 466static ctl_action ctl_check_for_blockage(struct ctl_lun *lun, 467 union ctl_io *pending_io, union ctl_io *ooa_io); 468static ctl_action ctl_check_ooa(struct ctl_lun *lun, union ctl_io *pending_io, 469 union ctl_io *starting_io); 470static int ctl_check_blocked(struct ctl_lun *lun); 471static int ctl_scsiio_lun_check(struct ctl_lun *lun, 472 const struct ctl_cmd_entry *entry, 473 struct ctl_scsiio *ctsio); 474static void ctl_failover_lun(union ctl_io *io); 475static int ctl_scsiio_precheck(struct ctl_softc *ctl_softc, 476 struct ctl_scsiio *ctsio); 477static int ctl_scsiio(struct ctl_scsiio *ctsio); 478 479static int ctl_bus_reset(struct ctl_softc *ctl_softc, union ctl_io *io); 480static int ctl_target_reset(struct ctl_softc *ctl_softc, union ctl_io *io, 481 ctl_ua_type ua_type); 482static int ctl_do_lun_reset(struct ctl_lun *lun, union ctl_io *io, 483 ctl_ua_type ua_type); 484static int ctl_lun_reset(struct ctl_softc *ctl_softc, union ctl_io *io); 485static int ctl_abort_task(union ctl_io *io); 486static int ctl_abort_task_set(union ctl_io *io); 487static int ctl_query_task(union ctl_io *io, int task_set); 488static int ctl_i_t_nexus_reset(union ctl_io *io); 489static int ctl_query_async_event(union ctl_io *io); 490static void ctl_run_task(union ctl_io *io); 491#ifdef CTL_IO_DELAY 492static void ctl_datamove_timer_wakeup(void *arg); 493static void ctl_done_timer_wakeup(void *arg); 494#endif /* CTL_IO_DELAY */ 495 496static void ctl_send_datamove_done(union ctl_io *io, int have_lock); 497static void ctl_datamove_remote_write_cb(struct ctl_ha_dt_req *rq); 498static int ctl_datamove_remote_dm_write_cb(union ctl_io *io); 499static void ctl_datamove_remote_write(union ctl_io *io); 500static int ctl_datamove_remote_dm_read_cb(union ctl_io *io); 501static void ctl_datamove_remote_read_cb(struct ctl_ha_dt_req *rq); 502static int ctl_datamove_remote_sgl_setup(union ctl_io *io); 503static int ctl_datamove_remote_xfer(union ctl_io *io, unsigned command, 504 ctl_ha_dt_cb callback); 505static void ctl_datamove_remote_read(union ctl_io *io); 506static void ctl_datamove_remote(union ctl_io *io); 507static void ctl_process_done(union ctl_io *io); 508static void ctl_lun_thread(void *arg); 509static void ctl_thresh_thread(void *arg); 510static void ctl_work_thread(void *arg); 511static void ctl_enqueue_incoming(union ctl_io *io); 512static void ctl_enqueue_rtr(union ctl_io *io); 513static void ctl_enqueue_done(union ctl_io *io); 514static void ctl_enqueue_isc(union ctl_io *io); 515static const struct ctl_cmd_entry * 516 ctl_get_cmd_entry(struct ctl_scsiio *ctsio, int *sa); 517static const struct ctl_cmd_entry * 518 ctl_validate_command(struct ctl_scsiio *ctsio); 519static int ctl_cmd_applicable(uint8_t lun_type, 520 const struct ctl_cmd_entry *entry); 521 522static uint64_t ctl_get_prkey(struct ctl_lun *lun, uint32_t residx); 523static void ctl_clr_prkey(struct ctl_lun *lun, uint32_t residx); 524static void ctl_alloc_prkey(struct ctl_lun *lun, uint32_t residx); 525static void ctl_set_prkey(struct ctl_lun *lun, uint32_t residx, uint64_t key); 526 527/* 528 * Load the serialization table. This isn't very pretty, but is probably 529 * the easiest way to do it. 530 */ 531#include "ctl_ser_table.c" 532 533/* 534 * We only need to define open, close and ioctl routines for this driver. 535 */ 536static struct cdevsw ctl_cdevsw = { 537 .d_version = D_VERSION, 538 .d_flags = 0, 539 .d_open = ctl_open, 540 .d_close = ctl_close, 541 .d_ioctl = ctl_ioctl, 542 .d_name = "ctl", 543}; 544 545 546MALLOC_DEFINE(M_CTL, "ctlmem", "Memory used for CTL"); 547 548static int ctl_module_event_handler(module_t, int /*modeventtype_t*/, void *); 549 550static moduledata_t ctl_moduledata = { 551 "ctl", 552 ctl_module_event_handler, 553 NULL 554}; 555 556DECLARE_MODULE(ctl, ctl_moduledata, SI_SUB_CONFIGURE, SI_ORDER_THIRD); 557MODULE_VERSION(ctl, 1); 558 559static struct ctl_frontend ha_frontend = 560{ 561 .name = "ha", 562}; 563 564static void 565ctl_ha_datamove(union ctl_io *io) 566{ 567 struct ctl_lun *lun; 568 struct ctl_sg_entry *sgl; 569 union ctl_ha_msg msg; 570 uint32_t sg_entries_sent; 571 int do_sg_copy, i, j; 572 573 lun = (struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 574 memset(&msg.dt, 0, sizeof(msg.dt)); 575 msg.hdr.msg_type = CTL_MSG_DATAMOVE; 576 msg.hdr.original_sc = io->io_hdr.original_sc; 577 msg.hdr.serializing_sc = io; 578 msg.hdr.nexus = io->io_hdr.nexus; 579 msg.hdr.status = io->io_hdr.status; 580 msg.dt.flags = io->io_hdr.flags; 581 582 /* 583 * We convert everything into a S/G list here. We can't 584 * pass by reference, only by value between controllers. 585 * So we can't pass a pointer to the S/G list, only as many 586 * S/G entries as we can fit in here. If it's possible for 587 * us to get more than CTL_HA_MAX_SG_ENTRIES S/G entries, 588 * then we need to break this up into multiple transfers. 589 */ 590 if (io->scsiio.kern_sg_entries == 0) { 591 msg.dt.kern_sg_entries = 1; 592#if 0 593 if (io->io_hdr.flags & CTL_FLAG_BUS_ADDR) { 594 msg.dt.sg_list[0].addr = io->scsiio.kern_data_ptr; 595 } else { 596 /* XXX KDM use busdma here! */ 597 msg.dt.sg_list[0].addr = 598 (void *)vtophys(io->scsiio.kern_data_ptr); 599 } 600#else 601 KASSERT((io->io_hdr.flags & CTL_FLAG_BUS_ADDR) == 0, 602 ("HA does not support BUS_ADDR")); 603 msg.dt.sg_list[0].addr = io->scsiio.kern_data_ptr; 604#endif 605 msg.dt.sg_list[0].len = io->scsiio.kern_data_len; 606 do_sg_copy = 0; 607 } else { 608 msg.dt.kern_sg_entries = io->scsiio.kern_sg_entries; 609 do_sg_copy = 1; 610 } 611 612 msg.dt.kern_data_len = io->scsiio.kern_data_len; 613 msg.dt.kern_total_len = io->scsiio.kern_total_len; 614 msg.dt.kern_data_resid = io->scsiio.kern_data_resid; 615 msg.dt.kern_rel_offset = io->scsiio.kern_rel_offset; 616 msg.dt.sg_sequence = 0; 617 618 /* 619 * Loop until we've sent all of the S/G entries. On the 620 * other end, we'll recompose these S/G entries into one 621 * contiguous list before processing. 622 */ 623 for (sg_entries_sent = 0; sg_entries_sent < msg.dt.kern_sg_entries; 624 msg.dt.sg_sequence++) { 625 msg.dt.cur_sg_entries = MIN((sizeof(msg.dt.sg_list) / 626 sizeof(msg.dt.sg_list[0])), 627 msg.dt.kern_sg_entries - sg_entries_sent); 628 if (do_sg_copy != 0) { 629 sgl = (struct ctl_sg_entry *)io->scsiio.kern_data_ptr; 630 for (i = sg_entries_sent, j = 0; 631 i < msg.dt.cur_sg_entries; i++, j++) { 632#if 0 633 if (io->io_hdr.flags & CTL_FLAG_BUS_ADDR) { 634 msg.dt.sg_list[j].addr = sgl[i].addr; 635 } else { 636 /* XXX KDM use busdma here! */ 637 msg.dt.sg_list[j].addr = 638 (void *)vtophys(sgl[i].addr); 639 } 640#else 641 KASSERT((io->io_hdr.flags & 642 CTL_FLAG_BUS_ADDR) == 0, 643 ("HA does not support BUS_ADDR")); 644 msg.dt.sg_list[j].addr = sgl[i].addr; 645#endif 646 msg.dt.sg_list[j].len = sgl[i].len; 647 } 648 } 649 650 sg_entries_sent += msg.dt.cur_sg_entries; 651 msg.dt.sg_last = (sg_entries_sent >= msg.dt.kern_sg_entries); 652 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, 653 sizeof(msg.dt) - sizeof(msg.dt.sg_list) + 654 sizeof(struct ctl_sg_entry) * msg.dt.cur_sg_entries, 655 M_WAITOK) > CTL_HA_STATUS_SUCCESS) { 656 io->io_hdr.port_status = 31341; 657 io->scsiio.be_move_done(io); 658 return; 659 } 660 msg.dt.sent_sg_entries = sg_entries_sent; 661 } 662 663 /* 664 * Officially handover the request from us to peer. 665 * If failover has just happened, then we must return error. 666 * If failover happen just after, then it is not our problem. 667 */ 668 if (lun) 669 mtx_lock(&lun->lun_lock); 670 if (io->io_hdr.flags & CTL_FLAG_FAILOVER) { 671 if (lun) 672 mtx_unlock(&lun->lun_lock); 673 io->io_hdr.port_status = 31342; 674 io->scsiio.be_move_done(io); 675 return; 676 } 677 io->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 678 io->io_hdr.flags |= CTL_FLAG_DMA_INPROG; 679 if (lun) 680 mtx_unlock(&lun->lun_lock); 681} 682 683static void 684ctl_ha_done(union ctl_io *io) 685{ 686 union ctl_ha_msg msg; 687 688 if (io->io_hdr.io_type == CTL_IO_SCSI) { 689 memset(&msg, 0, sizeof(msg)); 690 msg.hdr.msg_type = CTL_MSG_FINISH_IO; 691 msg.hdr.original_sc = io->io_hdr.original_sc; 692 msg.hdr.nexus = io->io_hdr.nexus; 693 msg.hdr.status = io->io_hdr.status; 694 msg.scsi.scsi_status = io->scsiio.scsi_status; 695 msg.scsi.tag_num = io->scsiio.tag_num; 696 msg.scsi.tag_type = io->scsiio.tag_type; 697 msg.scsi.sense_len = io->scsiio.sense_len; 698 msg.scsi.sense_residual = io->scsiio.sense_residual; 699 msg.scsi.residual = io->scsiio.residual; 700 memcpy(&msg.scsi.sense_data, &io->scsiio.sense_data, 701 io->scsiio.sense_len); 702 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, 703 sizeof(msg.scsi) - sizeof(msg.scsi.sense_data) + 704 msg.scsi.sense_len, M_WAITOK); 705 } 706 ctl_free_io(io); 707} 708 709static void 710ctl_isc_handler_finish_xfer(struct ctl_softc *ctl_softc, 711 union ctl_ha_msg *msg_info) 712{ 713 struct ctl_scsiio *ctsio; 714 715 if (msg_info->hdr.original_sc == NULL) { 716 printf("%s: original_sc == NULL!\n", __func__); 717 /* XXX KDM now what? */ 718 return; 719 } 720 721 ctsio = &msg_info->hdr.original_sc->scsiio; 722 ctsio->io_hdr.flags |= CTL_FLAG_IO_ACTIVE; 723 ctsio->io_hdr.msg_type = CTL_MSG_FINISH_IO; 724 ctsio->io_hdr.status = msg_info->hdr.status; 725 ctsio->scsi_status = msg_info->scsi.scsi_status; 726 ctsio->sense_len = msg_info->scsi.sense_len; 727 ctsio->sense_residual = msg_info->scsi.sense_residual; 728 ctsio->residual = msg_info->scsi.residual; 729 memcpy(&ctsio->sense_data, &msg_info->scsi.sense_data, 730 msg_info->scsi.sense_len); 731 ctl_enqueue_isc((union ctl_io *)ctsio); 732} 733 734static void 735ctl_isc_handler_finish_ser_only(struct ctl_softc *ctl_softc, 736 union ctl_ha_msg *msg_info) 737{ 738 struct ctl_scsiio *ctsio; 739 740 if (msg_info->hdr.serializing_sc == NULL) { 741 printf("%s: serializing_sc == NULL!\n", __func__); 742 /* XXX KDM now what? */ 743 return; 744 } 745 746 ctsio = &msg_info->hdr.serializing_sc->scsiio; 747 ctsio->io_hdr.msg_type = CTL_MSG_FINISH_IO; 748 ctl_enqueue_isc((union ctl_io *)ctsio); 749} 750 751void 752ctl_isc_announce_lun(struct ctl_lun *lun) 753{ 754 struct ctl_softc *softc = lun->ctl_softc; 755 union ctl_ha_msg *msg; 756 struct ctl_ha_msg_lun_pr_key pr_key; 757 int i, k; 758 759 if (softc->ha_link != CTL_HA_LINK_ONLINE) 760 return; 761 mtx_lock(&lun->lun_lock); 762 i = sizeof(msg->lun); 763 if (lun->lun_devid) 764 i += lun->lun_devid->len; 765 i += sizeof(pr_key) * lun->pr_key_count; 766alloc: 767 mtx_unlock(&lun->lun_lock); 768 msg = malloc(i, M_CTL, M_WAITOK); 769 mtx_lock(&lun->lun_lock); 770 k = sizeof(msg->lun); 771 if (lun->lun_devid) 772 k += lun->lun_devid->len; 773 k += sizeof(pr_key) * lun->pr_key_count; 774 if (i < k) { 775 free(msg, M_CTL); 776 i = k; 777 goto alloc; 778 } 779 bzero(&msg->lun, sizeof(msg->lun)); 780 msg->hdr.msg_type = CTL_MSG_LUN_SYNC; 781 msg->hdr.nexus.targ_lun = lun->lun; 782 msg->hdr.nexus.targ_mapped_lun = lun->lun; 783 msg->lun.flags = lun->flags; 784 msg->lun.pr_generation = lun->pr_generation; 785 msg->lun.pr_res_idx = lun->pr_res_idx; 786 msg->lun.pr_res_type = lun->pr_res_type; 787 msg->lun.pr_key_count = lun->pr_key_count; 788 i = 0; 789 if (lun->lun_devid) { 790 msg->lun.lun_devid_len = lun->lun_devid->len; 791 memcpy(&msg->lun.data[i], lun->lun_devid->data, 792 msg->lun.lun_devid_len); 793 i += msg->lun.lun_devid_len; 794 } 795 for (k = 0; k < CTL_MAX_INITIATORS; k++) { 796 if ((pr_key.pr_key = ctl_get_prkey(lun, k)) == 0) 797 continue; 798 pr_key.pr_iid = k; 799 memcpy(&msg->lun.data[i], &pr_key, sizeof(pr_key)); 800 i += sizeof(pr_key); 801 } 802 mtx_unlock(&lun->lun_lock); 803 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg->port, sizeof(msg->port) + i, 804 M_WAITOK); 805 free(msg, M_CTL); 806 807 if (lun->flags & CTL_LUN_PRIMARY_SC) { 808 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 809 ctl_isc_announce_mode(lun, -1, 810 lun->mode_pages.index[i].page_code & SMPH_PC_MASK, 811 lun->mode_pages.index[i].subpage); 812 } 813 } 814} 815 816void 817ctl_isc_announce_port(struct ctl_port *port) 818{ 819 struct ctl_softc *softc = port->ctl_softc; 820 union ctl_ha_msg *msg; 821 int i; 822 823 if (port->targ_port < softc->port_min || 824 port->targ_port >= softc->port_max || 825 softc->ha_link != CTL_HA_LINK_ONLINE) 826 return; 827 i = sizeof(msg->port) + strlen(port->port_name) + 1; 828 if (port->lun_map) 829 i += sizeof(uint32_t) * CTL_MAX_LUNS; 830 if (port->port_devid) 831 i += port->port_devid->len; 832 if (port->target_devid) 833 i += port->target_devid->len; 834 if (port->init_devid) 835 i += port->init_devid->len; 836 msg = malloc(i, M_CTL, M_WAITOK); 837 bzero(&msg->port, sizeof(msg->port)); 838 msg->hdr.msg_type = CTL_MSG_PORT_SYNC; 839 msg->hdr.nexus.targ_port = port->targ_port; 840 msg->port.port_type = port->port_type; 841 msg->port.physical_port = port->physical_port; 842 msg->port.virtual_port = port->virtual_port; 843 msg->port.status = port->status; 844 i = 0; 845 msg->port.name_len = sprintf(&msg->port.data[i], 846 "%d:%s", softc->ha_id, port->port_name) + 1; 847 i += msg->port.name_len; 848 if (port->lun_map) { 849 msg->port.lun_map_len = sizeof(uint32_t) * CTL_MAX_LUNS; 850 memcpy(&msg->port.data[i], port->lun_map, 851 msg->port.lun_map_len); 852 i += msg->port.lun_map_len; 853 } 854 if (port->port_devid) { 855 msg->port.port_devid_len = port->port_devid->len; 856 memcpy(&msg->port.data[i], port->port_devid->data, 857 msg->port.port_devid_len); 858 i += msg->port.port_devid_len; 859 } 860 if (port->target_devid) { 861 msg->port.target_devid_len = port->target_devid->len; 862 memcpy(&msg->port.data[i], port->target_devid->data, 863 msg->port.target_devid_len); 864 i += msg->port.target_devid_len; 865 } 866 if (port->init_devid) { 867 msg->port.init_devid_len = port->init_devid->len; 868 memcpy(&msg->port.data[i], port->init_devid->data, 869 msg->port.init_devid_len); 870 i += msg->port.init_devid_len; 871 } 872 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg->port, sizeof(msg->port) + i, 873 M_WAITOK); 874 free(msg, M_CTL); 875} 876 877void 878ctl_isc_announce_iid(struct ctl_port *port, int iid) 879{ 880 struct ctl_softc *softc = port->ctl_softc; 881 union ctl_ha_msg *msg; 882 int i, l; 883 884 if (port->targ_port < softc->port_min || 885 port->targ_port >= softc->port_max || 886 softc->ha_link != CTL_HA_LINK_ONLINE) 887 return; 888 mtx_lock(&softc->ctl_lock); 889 i = sizeof(msg->iid); 890 l = 0; 891 if (port->wwpn_iid[iid].name) 892 l = strlen(port->wwpn_iid[iid].name) + 1; 893 i += l; 894 msg = malloc(i, M_CTL, M_NOWAIT); 895 if (msg == NULL) { 896 mtx_unlock(&softc->ctl_lock); 897 return; 898 } 899 bzero(&msg->iid, sizeof(msg->iid)); 900 msg->hdr.msg_type = CTL_MSG_IID_SYNC; 901 msg->hdr.nexus.targ_port = port->targ_port; 902 msg->hdr.nexus.initid = iid; 903 msg->iid.in_use = port->wwpn_iid[iid].in_use; 904 msg->iid.name_len = l; 905 msg->iid.wwpn = port->wwpn_iid[iid].wwpn; 906 if (port->wwpn_iid[iid].name) 907 strlcpy(msg->iid.data, port->wwpn_iid[iid].name, l); 908 mtx_unlock(&softc->ctl_lock); 909 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg->iid, i, M_NOWAIT); 910 free(msg, M_CTL); 911} 912 913void 914ctl_isc_announce_mode(struct ctl_lun *lun, uint32_t initidx, 915 uint8_t page, uint8_t subpage) 916{ 917 struct ctl_softc *softc = lun->ctl_softc; 918 union ctl_ha_msg msg; 919 u_int i; 920 921 if (softc->ha_link != CTL_HA_LINK_ONLINE) 922 return; 923 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 924 if ((lun->mode_pages.index[i].page_code & SMPH_PC_MASK) == 925 page && lun->mode_pages.index[i].subpage == subpage) 926 break; 927 } 928 if (i == CTL_NUM_MODE_PAGES) 929 return; 930 931 /* Don't try to replicate pages not present on this device. */ 932 if (lun->mode_pages.index[i].page_data == NULL) 933 return; 934 935 bzero(&msg.mode, sizeof(msg.mode)); 936 msg.hdr.msg_type = CTL_MSG_MODE_SYNC; 937 msg.hdr.nexus.targ_port = initidx / CTL_MAX_INIT_PER_PORT; 938 msg.hdr.nexus.initid = initidx % CTL_MAX_INIT_PER_PORT; 939 msg.hdr.nexus.targ_lun = lun->lun; 940 msg.hdr.nexus.targ_mapped_lun = lun->lun; 941 msg.mode.page_code = page; 942 msg.mode.subpage = subpage; 943 msg.mode.page_len = lun->mode_pages.index[i].page_len; 944 memcpy(msg.mode.data, lun->mode_pages.index[i].page_data, 945 msg.mode.page_len); 946 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg.mode, sizeof(msg.mode), 947 M_WAITOK); 948} 949 950static void 951ctl_isc_ha_link_up(struct ctl_softc *softc) 952{ 953 struct ctl_port *port; 954 struct ctl_lun *lun; 955 union ctl_ha_msg msg; 956 int i; 957 958 /* Announce this node parameters to peer for validation. */ 959 msg.login.msg_type = CTL_MSG_LOGIN; 960 msg.login.version = CTL_HA_VERSION; 961 msg.login.ha_mode = softc->ha_mode; 962 msg.login.ha_id = softc->ha_id; 963 msg.login.max_luns = CTL_MAX_LUNS; 964 msg.login.max_ports = CTL_MAX_PORTS; 965 msg.login.max_init_per_port = CTL_MAX_INIT_PER_PORT; 966 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg.login, sizeof(msg.login), 967 M_WAITOK); 968 969 STAILQ_FOREACH(port, &softc->port_list, links) { 970 ctl_isc_announce_port(port); 971 for (i = 0; i < CTL_MAX_INIT_PER_PORT; i++) { 972 if (port->wwpn_iid[i].in_use) 973 ctl_isc_announce_iid(port, i); 974 } 975 } 976 STAILQ_FOREACH(lun, &softc->lun_list, links) 977 ctl_isc_announce_lun(lun); 978} 979 980static void 981ctl_isc_ha_link_down(struct ctl_softc *softc) 982{ 983 struct ctl_port *port; 984 struct ctl_lun *lun; 985 union ctl_io *io; 986 int i; 987 988 mtx_lock(&softc->ctl_lock); 989 STAILQ_FOREACH(lun, &softc->lun_list, links) { 990 mtx_lock(&lun->lun_lock); 991 if (lun->flags & CTL_LUN_PEER_SC_PRIMARY) { 992 lun->flags &= ~CTL_LUN_PEER_SC_PRIMARY; 993 ctl_est_ua_all(lun, -1, CTL_UA_ASYM_ACC_CHANGE); 994 } 995 mtx_unlock(&lun->lun_lock); 996 997 mtx_unlock(&softc->ctl_lock); 998 io = ctl_alloc_io(softc->othersc_pool); 999 mtx_lock(&softc->ctl_lock); 1000 ctl_zero_io(io); 1001 io->io_hdr.msg_type = CTL_MSG_FAILOVER; 1002 io->io_hdr.nexus.targ_mapped_lun = lun->lun; 1003 ctl_enqueue_isc(io); 1004 } 1005 1006 STAILQ_FOREACH(port, &softc->port_list, links) { 1007 if (port->targ_port >= softc->port_min && 1008 port->targ_port < softc->port_max) 1009 continue; 1010 port->status &= ~CTL_PORT_STATUS_ONLINE; 1011 for (i = 0; i < CTL_MAX_INIT_PER_PORT; i++) { 1012 port->wwpn_iid[i].in_use = 0; 1013 free(port->wwpn_iid[i].name, M_CTL); 1014 port->wwpn_iid[i].name = NULL; 1015 } 1016 } 1017 mtx_unlock(&softc->ctl_lock); 1018} 1019 1020static void 1021ctl_isc_ua(struct ctl_softc *softc, union ctl_ha_msg *msg, int len) 1022{ 1023 struct ctl_lun *lun; 1024 uint32_t iid = ctl_get_initindex(&msg->hdr.nexus); 1025 1026 mtx_lock(&softc->ctl_lock); 1027 if (msg->hdr.nexus.targ_lun < CTL_MAX_LUNS && 1028 (lun = softc->ctl_luns[msg->hdr.nexus.targ_mapped_lun]) != NULL) { 1029 mtx_lock(&lun->lun_lock); 1030 mtx_unlock(&softc->ctl_lock); 1031 if (msg->ua.ua_type == CTL_UA_THIN_PROV_THRES && 1032 msg->ua.ua_set) 1033 memcpy(lun->ua_tpt_info, msg->ua.ua_info, 8); 1034 if (msg->ua.ua_all) { 1035 if (msg->ua.ua_set) 1036 ctl_est_ua_all(lun, iid, msg->ua.ua_type); 1037 else 1038 ctl_clr_ua_all(lun, iid, msg->ua.ua_type); 1039 } else { 1040 if (msg->ua.ua_set) 1041 ctl_est_ua(lun, iid, msg->ua.ua_type); 1042 else 1043 ctl_clr_ua(lun, iid, msg->ua.ua_type); 1044 } 1045 mtx_unlock(&lun->lun_lock); 1046 } else 1047 mtx_unlock(&softc->ctl_lock); 1048} 1049 1050static void 1051ctl_isc_lun_sync(struct ctl_softc *softc, union ctl_ha_msg *msg, int len) 1052{ 1053 struct ctl_lun *lun; 1054 struct ctl_ha_msg_lun_pr_key pr_key; 1055 int i, k; 1056 ctl_lun_flags oflags; 1057 uint32_t targ_lun; 1058 1059 targ_lun = msg->hdr.nexus.targ_mapped_lun; 1060 mtx_lock(&softc->ctl_lock); 1061 if ((targ_lun >= CTL_MAX_LUNS) || 1062 ((lun = softc->ctl_luns[targ_lun]) == NULL)) { 1063 mtx_unlock(&softc->ctl_lock); 1064 return; 1065 } 1066 mtx_lock(&lun->lun_lock); 1067 mtx_unlock(&softc->ctl_lock); 1068 if (lun->flags & CTL_LUN_DISABLED) { 1069 mtx_unlock(&lun->lun_lock); 1070 return; 1071 } 1072 i = (lun->lun_devid != NULL) ? lun->lun_devid->len : 0; 1073 if (msg->lun.lun_devid_len != i || (i > 0 && 1074 memcmp(&msg->lun.data[0], lun->lun_devid->data, i) != 0)) { 1075 mtx_unlock(&lun->lun_lock); 1076 printf("%s: Received conflicting HA LUN %d\n", 1077 __func__, msg->hdr.nexus.targ_lun); 1078 return; 1079 } else { 1080 /* Record whether peer is primary. */ 1081 oflags = lun->flags; 1082 if ((msg->lun.flags & CTL_LUN_PRIMARY_SC) && 1083 (msg->lun.flags & CTL_LUN_DISABLED) == 0) 1084 lun->flags |= CTL_LUN_PEER_SC_PRIMARY; 1085 else 1086 lun->flags &= ~CTL_LUN_PEER_SC_PRIMARY; 1087 if (oflags != lun->flags) 1088 ctl_est_ua_all(lun, -1, CTL_UA_ASYM_ACC_CHANGE); 1089 1090 /* If peer is primary and we are not -- use data */ 1091 if ((lun->flags & CTL_LUN_PRIMARY_SC) == 0 && 1092 (lun->flags & CTL_LUN_PEER_SC_PRIMARY)) { 1093 lun->pr_generation = msg->lun.pr_generation; 1094 lun->pr_res_idx = msg->lun.pr_res_idx; 1095 lun->pr_res_type = msg->lun.pr_res_type; 1096 lun->pr_key_count = msg->lun.pr_key_count; 1097 for (k = 0; k < CTL_MAX_INITIATORS; k++) 1098 ctl_clr_prkey(lun, k); 1099 for (k = 0; k < msg->lun.pr_key_count; k++) { 1100 memcpy(&pr_key, &msg->lun.data[i], 1101 sizeof(pr_key)); 1102 ctl_alloc_prkey(lun, pr_key.pr_iid); 1103 ctl_set_prkey(lun, pr_key.pr_iid, 1104 pr_key.pr_key); 1105 i += sizeof(pr_key); 1106 } 1107 } 1108 1109 mtx_unlock(&lun->lun_lock); 1110 CTL_DEBUG_PRINT(("%s: Known LUN %d, peer is %s\n", 1111 __func__, msg->hdr.nexus.targ_lun, 1112 (msg->lun.flags & CTL_LUN_PRIMARY_SC) ? 1113 "primary" : "secondary")); 1114 1115 /* If we are primary but peer doesn't know -- notify */ 1116 if ((lun->flags & CTL_LUN_PRIMARY_SC) && 1117 (msg->lun.flags & CTL_LUN_PEER_SC_PRIMARY) == 0) 1118 ctl_isc_announce_lun(lun); 1119 } 1120} 1121 1122static void 1123ctl_isc_port_sync(struct ctl_softc *softc, union ctl_ha_msg *msg, int len) 1124{ 1125 struct ctl_port *port; 1126 struct ctl_lun *lun; 1127 int i, new; 1128 1129 port = softc->ctl_ports[msg->hdr.nexus.targ_port]; 1130 if (port == NULL) { 1131 CTL_DEBUG_PRINT(("%s: New port %d\n", __func__, 1132 msg->hdr.nexus.targ_port)); 1133 new = 1; 1134 port = malloc(sizeof(*port), M_CTL, M_WAITOK | M_ZERO); 1135 port->frontend = &ha_frontend; 1136 port->targ_port = msg->hdr.nexus.targ_port; 1137 port->fe_datamove = ctl_ha_datamove; 1138 port->fe_done = ctl_ha_done; 1139 } else if (port->frontend == &ha_frontend) { 1140 CTL_DEBUG_PRINT(("%s: Updated port %d\n", __func__, 1141 msg->hdr.nexus.targ_port)); 1142 new = 0; 1143 } else { 1144 printf("%s: Received conflicting HA port %d\n", 1145 __func__, msg->hdr.nexus.targ_port); 1146 return; 1147 } 1148 port->port_type = msg->port.port_type; 1149 port->physical_port = msg->port.physical_port; 1150 port->virtual_port = msg->port.virtual_port; 1151 port->status = msg->port.status; 1152 i = 0; 1153 free(port->port_name, M_CTL); 1154 port->port_name = strndup(&msg->port.data[i], msg->port.name_len, 1155 M_CTL); 1156 i += msg->port.name_len; 1157 if (msg->port.lun_map_len != 0) { 1158 if (port->lun_map == NULL) 1159 port->lun_map = malloc(sizeof(uint32_t) * CTL_MAX_LUNS, 1160 M_CTL, M_WAITOK); 1161 memcpy(port->lun_map, &msg->port.data[i], 1162 sizeof(uint32_t) * CTL_MAX_LUNS); 1163 i += msg->port.lun_map_len; 1164 } else { 1165 free(port->lun_map, M_CTL); 1166 port->lun_map = NULL; 1167 } 1168 if (msg->port.port_devid_len != 0) { 1169 if (port->port_devid == NULL || 1170 port->port_devid->len != msg->port.port_devid_len) { 1171 free(port->port_devid, M_CTL); 1172 port->port_devid = malloc(sizeof(struct ctl_devid) + 1173 msg->port.port_devid_len, M_CTL, M_WAITOK); 1174 } 1175 memcpy(port->port_devid->data, &msg->port.data[i], 1176 msg->port.port_devid_len); 1177 port->port_devid->len = msg->port.port_devid_len; 1178 i += msg->port.port_devid_len; 1179 } else { 1180 free(port->port_devid, M_CTL); 1181 port->port_devid = NULL; 1182 } 1183 if (msg->port.target_devid_len != 0) { 1184 if (port->target_devid == NULL || 1185 port->target_devid->len != msg->port.target_devid_len) { 1186 free(port->target_devid, M_CTL); 1187 port->target_devid = malloc(sizeof(struct ctl_devid) + 1188 msg->port.target_devid_len, M_CTL, M_WAITOK); 1189 } 1190 memcpy(port->target_devid->data, &msg->port.data[i], 1191 msg->port.target_devid_len); 1192 port->target_devid->len = msg->port.target_devid_len; 1193 i += msg->port.target_devid_len; 1194 } else { 1195 free(port->target_devid, M_CTL); 1196 port->target_devid = NULL; 1197 } 1198 if (msg->port.init_devid_len != 0) { 1199 if (port->init_devid == NULL || 1200 port->init_devid->len != msg->port.init_devid_len) { 1201 free(port->init_devid, M_CTL); 1202 port->init_devid = malloc(sizeof(struct ctl_devid) + 1203 msg->port.init_devid_len, M_CTL, M_WAITOK); 1204 } 1205 memcpy(port->init_devid->data, &msg->port.data[i], 1206 msg->port.init_devid_len); 1207 port->init_devid->len = msg->port.init_devid_len; 1208 i += msg->port.init_devid_len; 1209 } else { 1210 free(port->init_devid, M_CTL); 1211 port->init_devid = NULL; 1212 } 1213 if (new) { 1214 if (ctl_port_register(port) != 0) { 1215 printf("%s: ctl_port_register() failed with error\n", 1216 __func__); 1217 } 1218 } 1219 mtx_lock(&softc->ctl_lock); 1220 STAILQ_FOREACH(lun, &softc->lun_list, links) { 1221 if (ctl_lun_map_to_port(port, lun->lun) == UINT32_MAX) 1222 continue; 1223 mtx_lock(&lun->lun_lock); 1224 ctl_est_ua_all(lun, -1, CTL_UA_INQ_CHANGE); 1225 mtx_unlock(&lun->lun_lock); 1226 } 1227 mtx_unlock(&softc->ctl_lock); 1228} 1229 1230static void 1231ctl_isc_iid_sync(struct ctl_softc *softc, union ctl_ha_msg *msg, int len) 1232{ 1233 struct ctl_port *port; 1234 int iid; 1235 1236 port = softc->ctl_ports[msg->hdr.nexus.targ_port]; 1237 if (port == NULL) { 1238 printf("%s: Received IID for unknown port %d\n", 1239 __func__, msg->hdr.nexus.targ_port); 1240 return; 1241 } 1242 iid = msg->hdr.nexus.initid; 1243 port->wwpn_iid[iid].in_use = msg->iid.in_use; 1244 port->wwpn_iid[iid].wwpn = msg->iid.wwpn; 1245 free(port->wwpn_iid[iid].name, M_CTL); 1246 if (msg->iid.name_len) { 1247 port->wwpn_iid[iid].name = strndup(&msg->iid.data[0], 1248 msg->iid.name_len, M_CTL); 1249 } else 1250 port->wwpn_iid[iid].name = NULL; 1251} 1252 1253static void 1254ctl_isc_login(struct ctl_softc *softc, union ctl_ha_msg *msg, int len) 1255{ 1256 1257 if (msg->login.version != CTL_HA_VERSION) { 1258 printf("CTL HA peers have different versions %d != %d\n", 1259 msg->login.version, CTL_HA_VERSION); 1260 ctl_ha_msg_abort(CTL_HA_CHAN_CTL); 1261 return; 1262 } 1263 if (msg->login.ha_mode != softc->ha_mode) { 1264 printf("CTL HA peers have different ha_mode %d != %d\n", 1265 msg->login.ha_mode, softc->ha_mode); 1266 ctl_ha_msg_abort(CTL_HA_CHAN_CTL); 1267 return; 1268 } 1269 if (msg->login.ha_id == softc->ha_id) { 1270 printf("CTL HA peers have same ha_id %d\n", msg->login.ha_id); 1271 ctl_ha_msg_abort(CTL_HA_CHAN_CTL); 1272 return; 1273 } 1274 if (msg->login.max_luns != CTL_MAX_LUNS || 1275 msg->login.max_ports != CTL_MAX_PORTS || 1276 msg->login.max_init_per_port != CTL_MAX_INIT_PER_PORT) { 1277 printf("CTL HA peers have different limits\n"); 1278 ctl_ha_msg_abort(CTL_HA_CHAN_CTL); 1279 return; 1280 } 1281} 1282 1283static void 1284ctl_isc_mode_sync(struct ctl_softc *softc, union ctl_ha_msg *msg, int len) 1285{ 1286 struct ctl_lun *lun; 1287 u_int i; 1288 uint32_t initidx, targ_lun; 1289 1290 targ_lun = msg->hdr.nexus.targ_mapped_lun; 1291 mtx_lock(&softc->ctl_lock); 1292 if ((targ_lun >= CTL_MAX_LUNS) || 1293 ((lun = softc->ctl_luns[targ_lun]) == NULL)) { 1294 mtx_unlock(&softc->ctl_lock); 1295 return; 1296 } 1297 mtx_lock(&lun->lun_lock); 1298 mtx_unlock(&softc->ctl_lock); 1299 if (lun->flags & CTL_LUN_DISABLED) { 1300 mtx_unlock(&lun->lun_lock); 1301 return; 1302 } 1303 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 1304 if ((lun->mode_pages.index[i].page_code & SMPH_PC_MASK) == 1305 msg->mode.page_code && 1306 lun->mode_pages.index[i].subpage == msg->mode.subpage) 1307 break; 1308 } 1309 if (i == CTL_NUM_MODE_PAGES) { 1310 mtx_unlock(&lun->lun_lock); 1311 return; 1312 } 1313 memcpy(lun->mode_pages.index[i].page_data, msg->mode.data, 1314 lun->mode_pages.index[i].page_len); 1315 initidx = ctl_get_initindex(&msg->hdr.nexus); 1316 if (initidx != -1) 1317 ctl_est_ua_all(lun, initidx, CTL_UA_MODE_CHANGE); 1318 mtx_unlock(&lun->lun_lock); 1319} 1320 1321/* 1322 * ISC (Inter Shelf Communication) event handler. Events from the HA 1323 * subsystem come in here. 1324 */ 1325static void 1326ctl_isc_event_handler(ctl_ha_channel channel, ctl_ha_event event, int param) 1327{ 1328 struct ctl_softc *softc = control_softc; 1329 union ctl_io *io; 1330 struct ctl_prio *presio; 1331 ctl_ha_status isc_status; 1332 1333 CTL_DEBUG_PRINT(("CTL: Isc Msg event %d\n", event)); 1334 if (event == CTL_HA_EVT_MSG_RECV) { 1335 union ctl_ha_msg *msg, msgbuf; 1336 1337 if (param > sizeof(msgbuf)) 1338 msg = malloc(param, M_CTL, M_WAITOK); 1339 else 1340 msg = &msgbuf; 1341 isc_status = ctl_ha_msg_recv(CTL_HA_CHAN_CTL, msg, param, 1342 M_WAITOK); 1343 if (isc_status != CTL_HA_STATUS_SUCCESS) { 1344 printf("%s: Error receiving message: %d\n", 1345 __func__, isc_status); 1346 if (msg != &msgbuf) 1347 free(msg, M_CTL); 1348 return; 1349 } 1350 1351 CTL_DEBUG_PRINT(("CTL: msg_type %d\n", msg->msg_type)); 1352 switch (msg->hdr.msg_type) { 1353 case CTL_MSG_SERIALIZE: 1354 io = ctl_alloc_io(softc->othersc_pool); 1355 ctl_zero_io(io); 1356 // populate ctsio from msg 1357 io->io_hdr.io_type = CTL_IO_SCSI; 1358 io->io_hdr.msg_type = CTL_MSG_SERIALIZE; 1359 io->io_hdr.original_sc = msg->hdr.original_sc; 1360 io->io_hdr.flags |= CTL_FLAG_FROM_OTHER_SC | 1361 CTL_FLAG_IO_ACTIVE; 1362 /* 1363 * If we're in serialization-only mode, we don't 1364 * want to go through full done processing. Thus 1365 * the COPY flag. 1366 * 1367 * XXX KDM add another flag that is more specific. 1368 */ 1369 if (softc->ha_mode != CTL_HA_MODE_XFER) 1370 io->io_hdr.flags |= CTL_FLAG_INT_COPY; 1371 io->io_hdr.nexus = msg->hdr.nexus; 1372#if 0 1373 printf("port %u, iid %u, lun %u\n", 1374 io->io_hdr.nexus.targ_port, 1375 io->io_hdr.nexus.initid, 1376 io->io_hdr.nexus.targ_lun); 1377#endif 1378 io->scsiio.tag_num = msg->scsi.tag_num; 1379 io->scsiio.tag_type = msg->scsi.tag_type; 1380#ifdef CTL_TIME_IO 1381 io->io_hdr.start_time = time_uptime; 1382 getbinuptime(&io->io_hdr.start_bt); 1383#endif /* CTL_TIME_IO */ 1384 io->scsiio.cdb_len = msg->scsi.cdb_len; 1385 memcpy(io->scsiio.cdb, msg->scsi.cdb, 1386 CTL_MAX_CDBLEN); 1387 if (softc->ha_mode == CTL_HA_MODE_XFER) { 1388 const struct ctl_cmd_entry *entry; 1389 1390 entry = ctl_get_cmd_entry(&io->scsiio, NULL); 1391 io->io_hdr.flags &= ~CTL_FLAG_DATA_MASK; 1392 io->io_hdr.flags |= 1393 entry->flags & CTL_FLAG_DATA_MASK; 1394 } 1395 ctl_enqueue_isc(io); 1396 break; 1397 1398 /* Performed on the Originating SC, XFER mode only */ 1399 case CTL_MSG_DATAMOVE: { 1400 struct ctl_sg_entry *sgl; 1401 int i, j; 1402 1403 io = msg->hdr.original_sc; 1404 if (io == NULL) { 1405 printf("%s: original_sc == NULL!\n", __func__); 1406 /* XXX KDM do something here */ 1407 break; 1408 } 1409 io->io_hdr.msg_type = CTL_MSG_DATAMOVE; 1410 io->io_hdr.flags |= CTL_FLAG_IO_ACTIVE; 1411 /* 1412 * Keep track of this, we need to send it back over 1413 * when the datamove is complete. 1414 */ 1415 io->io_hdr.serializing_sc = msg->hdr.serializing_sc; 1416 if (msg->hdr.status == CTL_SUCCESS) 1417 io->io_hdr.status = msg->hdr.status; 1418 1419 if (msg->dt.sg_sequence == 0) { 1420#ifdef CTL_TIME_IO 1421 getbinuptime(&io->io_hdr.dma_start_bt); 1422#endif 1423 i = msg->dt.kern_sg_entries + 1424 msg->dt.kern_data_len / 1425 CTL_HA_DATAMOVE_SEGMENT + 1; 1426 sgl = malloc(sizeof(*sgl) * i, M_CTL, 1427 M_WAITOK | M_ZERO); 1428 io->io_hdr.remote_sglist = sgl; 1429 io->io_hdr.local_sglist = 1430 &sgl[msg->dt.kern_sg_entries]; 1431 1432 io->scsiio.kern_data_ptr = (uint8_t *)sgl; 1433 1434 io->scsiio.kern_sg_entries = 1435 msg->dt.kern_sg_entries; 1436 io->scsiio.rem_sg_entries = 1437 msg->dt.kern_sg_entries; 1438 io->scsiio.kern_data_len = 1439 msg->dt.kern_data_len; 1440 io->scsiio.kern_total_len = 1441 msg->dt.kern_total_len; 1442 io->scsiio.kern_data_resid = 1443 msg->dt.kern_data_resid; 1444 io->scsiio.kern_rel_offset = 1445 msg->dt.kern_rel_offset; 1446 io->io_hdr.flags &= ~CTL_FLAG_BUS_ADDR; 1447 io->io_hdr.flags |= msg->dt.flags & 1448 CTL_FLAG_BUS_ADDR; 1449 } else 1450 sgl = (struct ctl_sg_entry *) 1451 io->scsiio.kern_data_ptr; 1452 1453 for (i = msg->dt.sent_sg_entries, j = 0; 1454 i < (msg->dt.sent_sg_entries + 1455 msg->dt.cur_sg_entries); i++, j++) { 1456 sgl[i].addr = msg->dt.sg_list[j].addr; 1457 sgl[i].len = msg->dt.sg_list[j].len; 1458 1459#if 0 1460 printf("%s: DATAMOVE: %p,%lu j=%d, i=%d\n", 1461 __func__, sgl[i].addr, sgl[i].len, j, i); 1462#endif 1463 } 1464 1465 /* 1466 * If this is the last piece of the I/O, we've got 1467 * the full S/G list. Queue processing in the thread. 1468 * Otherwise wait for the next piece. 1469 */ 1470 if (msg->dt.sg_last != 0) 1471 ctl_enqueue_isc(io); 1472 break; 1473 } 1474 /* Performed on the Serializing (primary) SC, XFER mode only */ 1475 case CTL_MSG_DATAMOVE_DONE: { 1476 if (msg->hdr.serializing_sc == NULL) { 1477 printf("%s: serializing_sc == NULL!\n", 1478 __func__); 1479 /* XXX KDM now what? */ 1480 break; 1481 } 1482 /* 1483 * We grab the sense information here in case 1484 * there was a failure, so we can return status 1485 * back to the initiator. 1486 */ 1487 io = msg->hdr.serializing_sc; 1488 io->io_hdr.msg_type = CTL_MSG_DATAMOVE_DONE; 1489 io->io_hdr.flags &= ~CTL_FLAG_DMA_INPROG; 1490 io->io_hdr.flags |= CTL_FLAG_IO_ACTIVE; 1491 io->io_hdr.port_status = msg->scsi.fetd_status; 1492 io->scsiio.residual = msg->scsi.residual; 1493 if (msg->hdr.status != CTL_STATUS_NONE) { 1494 io->io_hdr.status = msg->hdr.status; 1495 io->scsiio.scsi_status = msg->scsi.scsi_status; 1496 io->scsiio.sense_len = msg->scsi.sense_len; 1497 io->scsiio.sense_residual =msg->scsi.sense_residual; 1498 memcpy(&io->scsiio.sense_data, 1499 &msg->scsi.sense_data, 1500 msg->scsi.sense_len); 1501 if (msg->hdr.status == CTL_SUCCESS) 1502 io->io_hdr.flags |= CTL_FLAG_STATUS_SENT; 1503 } 1504 ctl_enqueue_isc(io); 1505 break; 1506 } 1507 1508 /* Preformed on Originating SC, SER_ONLY mode */ 1509 case CTL_MSG_R2R: 1510 io = msg->hdr.original_sc; 1511 if (io == NULL) { 1512 printf("%s: original_sc == NULL!\n", 1513 __func__); 1514 break; 1515 } 1516 io->io_hdr.flags |= CTL_FLAG_IO_ACTIVE; 1517 io->io_hdr.msg_type = CTL_MSG_R2R; 1518 io->io_hdr.serializing_sc = msg->hdr.serializing_sc; 1519 ctl_enqueue_isc(io); 1520 break; 1521 1522 /* 1523 * Performed on Serializing(i.e. primary SC) SC in SER_ONLY 1524 * mode. 1525 * Performed on the Originating (i.e. secondary) SC in XFER 1526 * mode 1527 */ 1528 case CTL_MSG_FINISH_IO: 1529 if (softc->ha_mode == CTL_HA_MODE_XFER) 1530 ctl_isc_handler_finish_xfer(softc, msg); 1531 else 1532 ctl_isc_handler_finish_ser_only(softc, msg); 1533 break; 1534 1535 /* Preformed on Originating SC */ 1536 case CTL_MSG_BAD_JUJU: 1537 io = msg->hdr.original_sc; 1538 if (io == NULL) { 1539 printf("%s: Bad JUJU!, original_sc is NULL!\n", 1540 __func__); 1541 break; 1542 } 1543 ctl_copy_sense_data(msg, io); 1544 /* 1545 * IO should have already been cleaned up on other 1546 * SC so clear this flag so we won't send a message 1547 * back to finish the IO there. 1548 */ 1549 io->io_hdr.flags &= ~CTL_FLAG_SENT_2OTHER_SC; 1550 io->io_hdr.flags |= CTL_FLAG_IO_ACTIVE; 1551 1552 /* io = msg->hdr.serializing_sc; */ 1553 io->io_hdr.msg_type = CTL_MSG_BAD_JUJU; 1554 ctl_enqueue_isc(io); 1555 break; 1556 1557 /* Handle resets sent from the other side */ 1558 case CTL_MSG_MANAGE_TASKS: { 1559 struct ctl_taskio *taskio; 1560 taskio = (struct ctl_taskio *)ctl_alloc_io( 1561 softc->othersc_pool); 1562 ctl_zero_io((union ctl_io *)taskio); 1563 taskio->io_hdr.io_type = CTL_IO_TASK; 1564 taskio->io_hdr.flags |= CTL_FLAG_FROM_OTHER_SC; 1565 taskio->io_hdr.nexus = msg->hdr.nexus; 1566 taskio->task_action = msg->task.task_action; 1567 taskio->tag_num = msg->task.tag_num; 1568 taskio->tag_type = msg->task.tag_type; 1569#ifdef CTL_TIME_IO 1570 taskio->io_hdr.start_time = time_uptime; 1571 getbinuptime(&taskio->io_hdr.start_bt); 1572#endif /* CTL_TIME_IO */ 1573 ctl_run_task((union ctl_io *)taskio); 1574 break; 1575 } 1576 /* Persistent Reserve action which needs attention */ 1577 case CTL_MSG_PERS_ACTION: 1578 presio = (struct ctl_prio *)ctl_alloc_io( 1579 softc->othersc_pool); 1580 ctl_zero_io((union ctl_io *)presio); 1581 presio->io_hdr.msg_type = CTL_MSG_PERS_ACTION; 1582 presio->io_hdr.flags |= CTL_FLAG_FROM_OTHER_SC; 1583 presio->io_hdr.nexus = msg->hdr.nexus; 1584 presio->pr_msg = msg->pr; 1585 ctl_enqueue_isc((union ctl_io *)presio); 1586 break; 1587 case CTL_MSG_UA: 1588 ctl_isc_ua(softc, msg, param); 1589 break; 1590 case CTL_MSG_PORT_SYNC: 1591 ctl_isc_port_sync(softc, msg, param); 1592 break; 1593 case CTL_MSG_LUN_SYNC: 1594 ctl_isc_lun_sync(softc, msg, param); 1595 break; 1596 case CTL_MSG_IID_SYNC: 1597 ctl_isc_iid_sync(softc, msg, param); 1598 break; 1599 case CTL_MSG_LOGIN: 1600 ctl_isc_login(softc, msg, param); 1601 break; 1602 case CTL_MSG_MODE_SYNC: 1603 ctl_isc_mode_sync(softc, msg, param); 1604 break; 1605 default: 1606 printf("Received HA message of unknown type %d\n", 1607 msg->hdr.msg_type); 1608 ctl_ha_msg_abort(CTL_HA_CHAN_CTL); 1609 break; 1610 } 1611 if (msg != &msgbuf) 1612 free(msg, M_CTL); 1613 } else if (event == CTL_HA_EVT_LINK_CHANGE) { 1614 printf("CTL: HA link status changed from %d to %d\n", 1615 softc->ha_link, param); 1616 if (param == softc->ha_link) 1617 return; 1618 if (softc->ha_link == CTL_HA_LINK_ONLINE) { 1619 softc->ha_link = param; 1620 ctl_isc_ha_link_down(softc); 1621 } else { 1622 softc->ha_link = param; 1623 if (softc->ha_link == CTL_HA_LINK_ONLINE) 1624 ctl_isc_ha_link_up(softc); 1625 } 1626 return; 1627 } else { 1628 printf("ctl_isc_event_handler: Unknown event %d\n", event); 1629 return; 1630 } 1631} 1632 1633static void 1634ctl_copy_sense_data(union ctl_ha_msg *src, union ctl_io *dest) 1635{ 1636 1637 memcpy(&dest->scsiio.sense_data, &src->scsi.sense_data, 1638 src->scsi.sense_len); 1639 dest->scsiio.scsi_status = src->scsi.scsi_status; 1640 dest->scsiio.sense_len = src->scsi.sense_len; 1641 dest->io_hdr.status = src->hdr.status; 1642} 1643 1644static void 1645ctl_copy_sense_data_back(union ctl_io *src, union ctl_ha_msg *dest) 1646{ 1647 1648 memcpy(&dest->scsi.sense_data, &src->scsiio.sense_data, 1649 src->scsiio.sense_len); 1650 dest->scsi.scsi_status = src->scsiio.scsi_status; 1651 dest->scsi.sense_len = src->scsiio.sense_len; 1652 dest->hdr.status = src->io_hdr.status; 1653} 1654 1655void 1656ctl_est_ua(struct ctl_lun *lun, uint32_t initidx, ctl_ua_type ua) 1657{ 1658 struct ctl_softc *softc = lun->ctl_softc; 1659 ctl_ua_type *pu; 1660 1661 if (initidx < softc->init_min || initidx >= softc->init_max) 1662 return; 1663 mtx_assert(&lun->lun_lock, MA_OWNED); 1664 pu = lun->pending_ua[initidx / CTL_MAX_INIT_PER_PORT]; 1665 if (pu == NULL) 1666 return; 1667 pu[initidx % CTL_MAX_INIT_PER_PORT] |= ua; 1668} 1669 1670void 1671ctl_est_ua_port(struct ctl_lun *lun, int port, uint32_t except, ctl_ua_type ua) 1672{ 1673 int i; 1674 1675 mtx_assert(&lun->lun_lock, MA_OWNED); 1676 if (lun->pending_ua[port] == NULL) 1677 return; 1678 for (i = 0; i < CTL_MAX_INIT_PER_PORT; i++) { 1679 if (port * CTL_MAX_INIT_PER_PORT + i == except) 1680 continue; 1681 lun->pending_ua[port][i] |= ua; 1682 } 1683} 1684 1685void 1686ctl_est_ua_all(struct ctl_lun *lun, uint32_t except, ctl_ua_type ua) 1687{ 1688 struct ctl_softc *softc = lun->ctl_softc; 1689 int i; 1690 1691 mtx_assert(&lun->lun_lock, MA_OWNED); 1692 for (i = softc->port_min; i < softc->port_max; i++) 1693 ctl_est_ua_port(lun, i, except, ua); 1694} 1695 1696void 1697ctl_clr_ua(struct ctl_lun *lun, uint32_t initidx, ctl_ua_type ua) 1698{ 1699 struct ctl_softc *softc = lun->ctl_softc; 1700 ctl_ua_type *pu; 1701 1702 if (initidx < softc->init_min || initidx >= softc->init_max) 1703 return; 1704 mtx_assert(&lun->lun_lock, MA_OWNED); 1705 pu = lun->pending_ua[initidx / CTL_MAX_INIT_PER_PORT]; 1706 if (pu == NULL) 1707 return; 1708 pu[initidx % CTL_MAX_INIT_PER_PORT] &= ~ua; 1709} 1710 1711void 1712ctl_clr_ua_all(struct ctl_lun *lun, uint32_t except, ctl_ua_type ua) 1713{ 1714 struct ctl_softc *softc = lun->ctl_softc; 1715 int i, j; 1716 1717 mtx_assert(&lun->lun_lock, MA_OWNED); 1718 for (i = softc->port_min; i < softc->port_max; i++) { 1719 if (lun->pending_ua[i] == NULL) 1720 continue; 1721 for (j = 0; j < CTL_MAX_INIT_PER_PORT; j++) { 1722 if (i * CTL_MAX_INIT_PER_PORT + j == except) 1723 continue; 1724 lun->pending_ua[i][j] &= ~ua; 1725 } 1726 } 1727} 1728 1729void 1730ctl_clr_ua_allluns(struct ctl_softc *ctl_softc, uint32_t initidx, 1731 ctl_ua_type ua_type) 1732{ 1733 struct ctl_lun *lun; 1734 1735 mtx_assert(&ctl_softc->ctl_lock, MA_OWNED); 1736 STAILQ_FOREACH(lun, &ctl_softc->lun_list, links) { 1737 mtx_lock(&lun->lun_lock); 1738 ctl_clr_ua(lun, initidx, ua_type); 1739 mtx_unlock(&lun->lun_lock); 1740 } 1741} 1742 1743static int 1744ctl_ha_role_sysctl(SYSCTL_HANDLER_ARGS) 1745{ 1746 struct ctl_softc *softc = (struct ctl_softc *)arg1; 1747 struct ctl_lun *lun; 1748 struct ctl_lun_req ireq; 1749 int error, value; 1750 1751 value = (softc->flags & CTL_FLAG_ACTIVE_SHELF) ? 0 : 1; 1752 error = sysctl_handle_int(oidp, &value, 0, req); 1753 if ((error != 0) || (req->newptr == NULL)) 1754 return (error); 1755 1756 mtx_lock(&softc->ctl_lock); 1757 if (value == 0) 1758 softc->flags |= CTL_FLAG_ACTIVE_SHELF; 1759 else 1760 softc->flags &= ~CTL_FLAG_ACTIVE_SHELF; 1761 STAILQ_FOREACH(lun, &softc->lun_list, links) { 1762 mtx_unlock(&softc->ctl_lock); 1763 bzero(&ireq, sizeof(ireq)); 1764 ireq.reqtype = CTL_LUNREQ_MODIFY; 1765 ireq.reqdata.modify.lun_id = lun->lun; 1766 lun->backend->ioctl(NULL, CTL_LUN_REQ, (caddr_t)&ireq, 0, 1767 curthread); 1768 if (ireq.status != CTL_LUN_OK) { 1769 printf("%s: CTL_LUNREQ_MODIFY returned %d '%s'\n", 1770 __func__, ireq.status, ireq.error_str); 1771 } 1772 mtx_lock(&softc->ctl_lock); 1773 } 1774 mtx_unlock(&softc->ctl_lock); 1775 return (0); 1776} 1777 1778static int 1779ctl_init(void) 1780{ 1781 struct make_dev_args args; 1782 struct ctl_softc *softc; 1783 void *other_pool; 1784 int i, error; 1785 1786 softc = control_softc = malloc(sizeof(*control_softc), M_DEVBUF, 1787 M_WAITOK | M_ZERO); 1788 1789 make_dev_args_init(&args); 1790 args.mda_devsw = &ctl_cdevsw; 1791 args.mda_uid = UID_ROOT; 1792 args.mda_gid = GID_OPERATOR; 1793 args.mda_mode = 0600; 1794 args.mda_si_drv1 = softc; 1795 error = make_dev_s(&args, &softc->dev, "cam/ctl"); 1796 if (error != 0) { 1797 free(control_softc, M_DEVBUF); 1798 return (error); 1799 } 1800 1801 sysctl_ctx_init(&softc->sysctl_ctx); 1802 softc->sysctl_tree = SYSCTL_ADD_NODE(&softc->sysctl_ctx, 1803 SYSCTL_STATIC_CHILDREN(_kern_cam), OID_AUTO, "ctl", 1804 CTLFLAG_RD, 0, "CAM Target Layer"); 1805 1806 if (softc->sysctl_tree == NULL) { 1807 printf("%s: unable to allocate sysctl tree\n", __func__); 1808 destroy_dev(softc->dev); 1809 free(control_softc, M_DEVBUF); 1810 control_softc = NULL; 1811 return (ENOMEM); 1812 } 1813 1814 mtx_init(&softc->ctl_lock, "CTL mutex", NULL, MTX_DEF); 1815 softc->io_zone = uma_zcreate("CTL IO", sizeof(union ctl_io), 1816 NULL, NULL, NULL, NULL, UMA_ALIGN_PTR, 0); 1817 softc->flags = 0; 1818 1819 SYSCTL_ADD_INT(&softc->sysctl_ctx, SYSCTL_CHILDREN(softc->sysctl_tree), 1820 OID_AUTO, "ha_mode", CTLFLAG_RDTUN, (int *)&softc->ha_mode, 0, 1821 "HA mode (0 - act/stby, 1 - serialize only, 2 - xfer)"); 1822 1823 /* 1824 * In Copan's HA scheme, the "master" and "slave" roles are 1825 * figured out through the slot the controller is in. Although it 1826 * is an active/active system, someone has to be in charge. 1827 */ 1828 SYSCTL_ADD_INT(&softc->sysctl_ctx, SYSCTL_CHILDREN(softc->sysctl_tree), 1829 OID_AUTO, "ha_id", CTLFLAG_RDTUN, &softc->ha_id, 0, 1830 "HA head ID (0 - no HA)"); 1831 if (softc->ha_id == 0 || softc->ha_id > NUM_HA_SHELVES) { 1832 softc->flags |= CTL_FLAG_ACTIVE_SHELF; 1833 softc->is_single = 1; 1834 softc->port_cnt = CTL_MAX_PORTS; 1835 softc->port_min = 0; 1836 } else { 1837 softc->port_cnt = CTL_MAX_PORTS / NUM_HA_SHELVES; 1838 softc->port_min = (softc->ha_id - 1) * softc->port_cnt; 1839 } 1840 softc->port_max = softc->port_min + softc->port_cnt; 1841 softc->init_min = softc->port_min * CTL_MAX_INIT_PER_PORT; 1842 softc->init_max = softc->port_max * CTL_MAX_INIT_PER_PORT; 1843 1844 SYSCTL_ADD_INT(&softc->sysctl_ctx, SYSCTL_CHILDREN(softc->sysctl_tree), 1845 OID_AUTO, "ha_link", CTLFLAG_RD, (int *)&softc->ha_link, 0, 1846 "HA link state (0 - offline, 1 - unknown, 2 - online)"); 1847 1848 STAILQ_INIT(&softc->lun_list); 1849 STAILQ_INIT(&softc->pending_lun_queue); 1850 STAILQ_INIT(&softc->fe_list); 1851 STAILQ_INIT(&softc->port_list); 1852 STAILQ_INIT(&softc->be_list); 1853 ctl_tpc_init(softc); 1854 1855 if (ctl_pool_create(softc, "othersc", CTL_POOL_ENTRIES_OTHER_SC, 1856 &other_pool) != 0) 1857 { 1858 printf("ctl: can't allocate %d entry other SC pool, " 1859 "exiting\n", CTL_POOL_ENTRIES_OTHER_SC); 1860 return (ENOMEM); 1861 } 1862 softc->othersc_pool = other_pool; 1863 1864 if (worker_threads <= 0) 1865 worker_threads = max(1, mp_ncpus / 4); 1866 if (worker_threads > CTL_MAX_THREADS) 1867 worker_threads = CTL_MAX_THREADS; 1868 1869 for (i = 0; i < worker_threads; i++) { 1870 struct ctl_thread *thr = &softc->threads[i]; 1871 1872 mtx_init(&thr->queue_lock, "CTL queue mutex", NULL, MTX_DEF); 1873 thr->ctl_softc = softc; 1874 STAILQ_INIT(&thr->incoming_queue); 1875 STAILQ_INIT(&thr->rtr_queue); 1876 STAILQ_INIT(&thr->done_queue); 1877 STAILQ_INIT(&thr->isc_queue); 1878 1879 error = kproc_kthread_add(ctl_work_thread, thr, 1880 &softc->ctl_proc, &thr->thread, 0, 0, "ctl", "work%d", i); 1881 if (error != 0) { 1882 printf("error creating CTL work thread!\n"); 1883 ctl_pool_free(other_pool); 1884 return (error); 1885 } 1886 } 1887 error = kproc_kthread_add(ctl_lun_thread, softc, 1888 &softc->ctl_proc, NULL, 0, 0, "ctl", "lun"); 1889 if (error != 0) { 1890 printf("error creating CTL lun thread!\n"); 1891 ctl_pool_free(other_pool); 1892 return (error); 1893 } 1894 error = kproc_kthread_add(ctl_thresh_thread, softc, 1895 &softc->ctl_proc, NULL, 0, 0, "ctl", "thresh"); 1896 if (error != 0) { 1897 printf("error creating CTL threshold thread!\n"); 1898 ctl_pool_free(other_pool); 1899 return (error); 1900 } 1901 1902 SYSCTL_ADD_PROC(&softc->sysctl_ctx,SYSCTL_CHILDREN(softc->sysctl_tree), 1903 OID_AUTO, "ha_role", CTLTYPE_INT | CTLFLAG_RWTUN, 1904 softc, 0, ctl_ha_role_sysctl, "I", "HA role for this head"); 1905 1906 if (softc->is_single == 0) { 1907 ctl_frontend_register(&ha_frontend); 1908 if (ctl_ha_msg_init(softc) != CTL_HA_STATUS_SUCCESS) { 1909 printf("ctl_init: ctl_ha_msg_init failed.\n"); 1910 softc->is_single = 1; 1911 } else 1912 if (ctl_ha_msg_register(CTL_HA_CHAN_CTL, ctl_isc_event_handler) 1913 != CTL_HA_STATUS_SUCCESS) { 1914 printf("ctl_init: ctl_ha_msg_register failed.\n"); 1915 softc->is_single = 1; 1916 } 1917 } 1918 return (0); 1919} 1920 1921void 1922ctl_shutdown(void) 1923{ 1924 struct ctl_softc *softc = control_softc; 1925 struct ctl_lun *lun, *next_lun; 1926 1927 if (softc->is_single == 0) { 1928 ctl_ha_msg_shutdown(softc); 1929 if (ctl_ha_msg_deregister(CTL_HA_CHAN_CTL) 1930 != CTL_HA_STATUS_SUCCESS) 1931 printf("%s: ctl_ha_msg_deregister failed.\n", __func__); 1932 if (ctl_ha_msg_destroy(softc) != CTL_HA_STATUS_SUCCESS) 1933 printf("%s: ctl_ha_msg_destroy failed.\n", __func__); 1934 ctl_frontend_deregister(&ha_frontend); 1935 } 1936 1937 mtx_lock(&softc->ctl_lock); 1938 1939 STAILQ_FOREACH_SAFE(lun, &softc->lun_list, links, next_lun) 1940 ctl_free_lun(lun); 1941 1942 mtx_unlock(&softc->ctl_lock); 1943 1944#if 0 1945 ctl_shutdown_thread(softc->work_thread); 1946 mtx_destroy(&softc->queue_lock); 1947#endif 1948 1949 ctl_tpc_shutdown(softc); 1950 uma_zdestroy(softc->io_zone); 1951 mtx_destroy(&softc->ctl_lock); 1952 1953 destroy_dev(softc->dev); 1954 1955 sysctl_ctx_free(&softc->sysctl_ctx); 1956 1957 free(control_softc, M_DEVBUF); 1958 control_softc = NULL; 1959} 1960 1961static int 1962ctl_module_event_handler(module_t mod, int what, void *arg) 1963{ 1964 1965 switch (what) { 1966 case MOD_LOAD: 1967 return (ctl_init()); 1968 case MOD_UNLOAD: 1969 return (EBUSY); 1970 default: 1971 return (EOPNOTSUPP); 1972 } 1973} 1974 1975/* 1976 * XXX KDM should we do some access checks here? Bump a reference count to 1977 * prevent a CTL module from being unloaded while someone has it open? 1978 */ 1979static int 1980ctl_open(struct cdev *dev, int flags, int fmt, struct thread *td) 1981{ 1982 return (0); 1983} 1984 1985static int 1986ctl_close(struct cdev *dev, int flags, int fmt, struct thread *td) 1987{ 1988 return (0); 1989} 1990 1991/* 1992 * Remove an initiator by port number and initiator ID. 1993 * Returns 0 for success, -1 for failure. 1994 */ 1995int 1996ctl_remove_initiator(struct ctl_port *port, int iid) 1997{ 1998 struct ctl_softc *softc = port->ctl_softc; 1999 2000 mtx_assert(&softc->ctl_lock, MA_NOTOWNED); 2001 2002 if (iid > CTL_MAX_INIT_PER_PORT) { 2003 printf("%s: initiator ID %u > maximun %u!\n", 2004 __func__, iid, CTL_MAX_INIT_PER_PORT); 2005 return (-1); 2006 } 2007 2008 mtx_lock(&softc->ctl_lock); 2009 port->wwpn_iid[iid].in_use--; 2010 port->wwpn_iid[iid].last_use = time_uptime; 2011 mtx_unlock(&softc->ctl_lock); 2012 ctl_isc_announce_iid(port, iid); 2013 2014 return (0); 2015} 2016 2017/* 2018 * Add an initiator to the initiator map. 2019 * Returns iid for success, < 0 for failure. 2020 */ 2021int 2022ctl_add_initiator(struct ctl_port *port, int iid, uint64_t wwpn, char *name) 2023{ 2024 struct ctl_softc *softc = port->ctl_softc; 2025 time_t best_time; 2026 int i, best; 2027 2028 mtx_assert(&softc->ctl_lock, MA_NOTOWNED); 2029 2030 if (iid >= CTL_MAX_INIT_PER_PORT) { 2031 printf("%s: WWPN %#jx initiator ID %u > maximum %u!\n", 2032 __func__, wwpn, iid, CTL_MAX_INIT_PER_PORT); 2033 free(name, M_CTL); 2034 return (-1); 2035 } 2036 2037 mtx_lock(&softc->ctl_lock); 2038 2039 if (iid < 0 && (wwpn != 0 || name != NULL)) { 2040 for (i = 0; i < CTL_MAX_INIT_PER_PORT; i++) { 2041 if (wwpn != 0 && wwpn == port->wwpn_iid[i].wwpn) { 2042 iid = i; 2043 break; 2044 } 2045 if (name != NULL && port->wwpn_iid[i].name != NULL && 2046 strcmp(name, port->wwpn_iid[i].name) == 0) { 2047 iid = i; 2048 break; 2049 } 2050 } 2051 } 2052 2053 if (iid < 0) { 2054 for (i = 0; i < CTL_MAX_INIT_PER_PORT; i++) { 2055 if (port->wwpn_iid[i].in_use == 0 && 2056 port->wwpn_iid[i].wwpn == 0 && 2057 port->wwpn_iid[i].name == NULL) { 2058 iid = i; 2059 break; 2060 } 2061 } 2062 } 2063 2064 if (iid < 0) { 2065 best = -1; 2066 best_time = INT32_MAX; 2067 for (i = 0; i < CTL_MAX_INIT_PER_PORT; i++) { 2068 if (port->wwpn_iid[i].in_use == 0) { 2069 if (port->wwpn_iid[i].last_use < best_time) { 2070 best = i; 2071 best_time = port->wwpn_iid[i].last_use; 2072 } 2073 } 2074 } 2075 iid = best; 2076 } 2077 2078 if (iid < 0) { 2079 mtx_unlock(&softc->ctl_lock); 2080 free(name, M_CTL); 2081 return (-2); 2082 } 2083 2084 if (port->wwpn_iid[iid].in_use > 0 && (wwpn != 0 || name != NULL)) { 2085 /* 2086 * This is not an error yet. 2087 */ 2088 if (wwpn != 0 && wwpn == port->wwpn_iid[iid].wwpn) { 2089#if 0 2090 printf("%s: port %d iid %u WWPN %#jx arrived" 2091 " again\n", __func__, port->targ_port, 2092 iid, (uintmax_t)wwpn); 2093#endif 2094 goto take; 2095 } 2096 if (name != NULL && port->wwpn_iid[iid].name != NULL && 2097 strcmp(name, port->wwpn_iid[iid].name) == 0) { 2098#if 0 2099 printf("%s: port %d iid %u name '%s' arrived" 2100 " again\n", __func__, port->targ_port, 2101 iid, name); 2102#endif 2103 goto take; 2104 } 2105 2106 /* 2107 * This is an error, but what do we do about it? The 2108 * driver is telling us we have a new WWPN for this 2109 * initiator ID, so we pretty much need to use it. 2110 */ 2111 printf("%s: port %d iid %u WWPN %#jx '%s' arrived," 2112 " but WWPN %#jx '%s' is still at that address\n", 2113 __func__, port->targ_port, iid, wwpn, name, 2114 (uintmax_t)port->wwpn_iid[iid].wwpn, 2115 port->wwpn_iid[iid].name); 2116 2117 /* 2118 * XXX KDM clear have_ca and ua_pending on each LUN for 2119 * this initiator. 2120 */ 2121 } 2122take: 2123 free(port->wwpn_iid[iid].name, M_CTL); 2124 port->wwpn_iid[iid].name = name; 2125 port->wwpn_iid[iid].wwpn = wwpn; 2126 port->wwpn_iid[iid].in_use++; 2127 mtx_unlock(&softc->ctl_lock); 2128 ctl_isc_announce_iid(port, iid); 2129 2130 return (iid); 2131} 2132 2133static int 2134ctl_create_iid(struct ctl_port *port, int iid, uint8_t *buf) 2135{ 2136 int len; 2137 2138 switch (port->port_type) { 2139 case CTL_PORT_FC: 2140 { 2141 struct scsi_transportid_fcp *id = 2142 (struct scsi_transportid_fcp *)buf; 2143 if (port->wwpn_iid[iid].wwpn == 0) 2144 return (0); 2145 memset(id, 0, sizeof(*id)); 2146 id->format_protocol = SCSI_PROTO_FC; 2147 scsi_u64to8b(port->wwpn_iid[iid].wwpn, id->n_port_name); 2148 return (sizeof(*id)); 2149 } 2150 case CTL_PORT_ISCSI: 2151 { 2152 struct scsi_transportid_iscsi_port *id = 2153 (struct scsi_transportid_iscsi_port *)buf; 2154 if (port->wwpn_iid[iid].name == NULL) 2155 return (0); 2156 memset(id, 0, 256); 2157 id->format_protocol = SCSI_TRN_ISCSI_FORMAT_PORT | 2158 SCSI_PROTO_ISCSI; 2159 len = strlcpy(id->iscsi_name, port->wwpn_iid[iid].name, 252) + 1; 2160 len = roundup2(min(len, 252), 4); 2161 scsi_ulto2b(len, id->additional_length); 2162 return (sizeof(*id) + len); 2163 } 2164 case CTL_PORT_SAS: 2165 { 2166 struct scsi_transportid_sas *id = 2167 (struct scsi_transportid_sas *)buf; 2168 if (port->wwpn_iid[iid].wwpn == 0) 2169 return (0); 2170 memset(id, 0, sizeof(*id)); 2171 id->format_protocol = SCSI_PROTO_SAS; 2172 scsi_u64to8b(port->wwpn_iid[iid].wwpn, id->sas_address); 2173 return (sizeof(*id)); 2174 } 2175 default: 2176 { 2177 struct scsi_transportid_spi *id = 2178 (struct scsi_transportid_spi *)buf; 2179 memset(id, 0, sizeof(*id)); 2180 id->format_protocol = SCSI_PROTO_SPI; 2181 scsi_ulto2b(iid, id->scsi_addr); 2182 scsi_ulto2b(port->targ_port, id->rel_trgt_port_id); 2183 return (sizeof(*id)); 2184 } 2185 } 2186} 2187 2188/* 2189 * Serialize a command that went down the "wrong" side, and so was sent to 2190 * this controller for execution. The logic is a little different than the 2191 * standard case in ctl_scsiio_precheck(). Errors in this case need to get 2192 * sent back to the other side, but in the success case, we execute the 2193 * command on this side (XFER mode) or tell the other side to execute it 2194 * (SER_ONLY mode). 2195 */ 2196static int 2197ctl_serialize_other_sc_cmd(struct ctl_scsiio *ctsio) 2198{ 2199 struct ctl_softc *softc = control_softc; 2200 union ctl_ha_msg msg_info; 2201 struct ctl_port *port; 2202 struct ctl_lun *lun; 2203 const struct ctl_cmd_entry *entry; 2204 int retval = 0; 2205 uint32_t targ_lun; 2206 2207 targ_lun = ctsio->io_hdr.nexus.targ_mapped_lun; 2208 mtx_lock(&softc->ctl_lock); 2209 2210 /* Make sure that we know about this port. */ 2211 port = ctl_io_port(&ctsio->io_hdr); 2212 if (port == NULL || (port->status & CTL_PORT_STATUS_ONLINE) == 0) { 2213 ctl_set_internal_failure(ctsio, /*sks_valid*/ 0, 2214 /*retry_count*/ 1); 2215 goto badjuju; 2216 } 2217 2218 /* Make sure that we know about this LUN. */ 2219 if ((targ_lun < CTL_MAX_LUNS) && 2220 ((lun = softc->ctl_luns[targ_lun]) != NULL)) { 2221 mtx_lock(&lun->lun_lock); 2222 mtx_unlock(&softc->ctl_lock); 2223 /* 2224 * If the LUN is invalid, pretend that it doesn't exist. 2225 * It will go away as soon as all pending I/O has been 2226 * completed. 2227 */ 2228 if (lun->flags & CTL_LUN_DISABLED) { 2229 mtx_unlock(&lun->lun_lock); 2230 lun = NULL; 2231 } 2232 } else { 2233 mtx_unlock(&softc->ctl_lock); 2234 lun = NULL; 2235 } 2236 if (lun == NULL) { 2237 /* 2238 * The other node would not send this request to us unless 2239 * received announce that we are primary node for this LUN. 2240 * If this LUN does not exist now, it is probably result of 2241 * a race, so respond to initiator in the most opaque way. 2242 */ 2243 ctl_set_busy(ctsio); 2244 goto badjuju; 2245 } 2246 2247 entry = ctl_get_cmd_entry(ctsio, NULL); 2248 if (ctl_scsiio_lun_check(lun, entry, ctsio) != 0) { 2249 mtx_unlock(&lun->lun_lock); 2250 goto badjuju; 2251 } 2252 2253 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr = lun; 2254 ctsio->io_hdr.ctl_private[CTL_PRIV_BACKEND_LUN].ptr = lun->be_lun; 2255 2256 /* 2257 * Every I/O goes into the OOA queue for a 2258 * particular LUN, and stays there until completion. 2259 */ 2260#ifdef CTL_TIME_IO 2261 if (TAILQ_EMPTY(&lun->ooa_queue)) 2262 lun->idle_time += getsbinuptime() - lun->last_busy; 2263#endif 2264 TAILQ_INSERT_TAIL(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 2265 2266 switch (ctl_check_ooa(lun, (union ctl_io *)ctsio, 2267 (union ctl_io *)TAILQ_PREV(&ctsio->io_hdr, ctl_ooaq, 2268 ooa_links))) { 2269 case CTL_ACTION_BLOCK: 2270 ctsio->io_hdr.flags |= CTL_FLAG_BLOCKED; 2271 TAILQ_INSERT_TAIL(&lun->blocked_queue, &ctsio->io_hdr, 2272 blocked_links); 2273 mtx_unlock(&lun->lun_lock); 2274 break; 2275 case CTL_ACTION_PASS: 2276 case CTL_ACTION_SKIP: 2277 if (softc->ha_mode == CTL_HA_MODE_XFER) { 2278 ctsio->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 2279 ctl_enqueue_rtr((union ctl_io *)ctsio); 2280 mtx_unlock(&lun->lun_lock); 2281 } else { 2282 ctsio->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 2283 mtx_unlock(&lun->lun_lock); 2284 2285 /* send msg back to other side */ 2286 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 2287 msg_info.hdr.serializing_sc = (union ctl_io *)ctsio; 2288 msg_info.hdr.msg_type = CTL_MSG_R2R; 2289 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 2290 sizeof(msg_info.hdr), M_WAITOK); 2291 } 2292 break; 2293 case CTL_ACTION_OVERLAP: 2294 TAILQ_REMOVE(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 2295 mtx_unlock(&lun->lun_lock); 2296 ctl_set_overlapped_cmd(ctsio); 2297 goto badjuju; 2298 case CTL_ACTION_OVERLAP_TAG: 2299 TAILQ_REMOVE(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 2300 mtx_unlock(&lun->lun_lock); 2301 ctl_set_overlapped_tag(ctsio, ctsio->tag_num); 2302 goto badjuju; 2303 case CTL_ACTION_ERROR: 2304 default: 2305 TAILQ_REMOVE(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 2306 mtx_unlock(&lun->lun_lock); 2307 2308 ctl_set_internal_failure(ctsio, /*sks_valid*/ 0, 2309 /*retry_count*/ 0); 2310badjuju: 2311 ctl_copy_sense_data_back((union ctl_io *)ctsio, &msg_info); 2312 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 2313 msg_info.hdr.serializing_sc = NULL; 2314 msg_info.hdr.msg_type = CTL_MSG_BAD_JUJU; 2315 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 2316 sizeof(msg_info.scsi), M_WAITOK); 2317 retval = 1; 2318 break; 2319 } 2320 return (retval); 2321} 2322 2323/* 2324 * Returns 0 for success, errno for failure. 2325 */ 2326static void 2327ctl_ioctl_fill_ooa(struct ctl_lun *lun, uint32_t *cur_fill_num, 2328 struct ctl_ooa *ooa_hdr, struct ctl_ooa_entry *kern_entries) 2329{ 2330 union ctl_io *io; 2331 2332 mtx_lock(&lun->lun_lock); 2333 for (io = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); (io != NULL); 2334 (*cur_fill_num)++, io = (union ctl_io *)TAILQ_NEXT(&io->io_hdr, 2335 ooa_links)) { 2336 struct ctl_ooa_entry *entry; 2337 2338 /* 2339 * If we've got more than we can fit, just count the 2340 * remaining entries. 2341 */ 2342 if (*cur_fill_num >= ooa_hdr->alloc_num) 2343 continue; 2344 2345 entry = &kern_entries[*cur_fill_num]; 2346 2347 entry->tag_num = io->scsiio.tag_num; 2348 entry->lun_num = lun->lun; 2349#ifdef CTL_TIME_IO 2350 entry->start_bt = io->io_hdr.start_bt; 2351#endif 2352 bcopy(io->scsiio.cdb, entry->cdb, io->scsiio.cdb_len); 2353 entry->cdb_len = io->scsiio.cdb_len; 2354 if (io->io_hdr.flags & CTL_FLAG_BLOCKED) 2355 entry->cmd_flags |= CTL_OOACMD_FLAG_BLOCKED; 2356 2357 if (io->io_hdr.flags & CTL_FLAG_DMA_INPROG) 2358 entry->cmd_flags |= CTL_OOACMD_FLAG_DMA; 2359 2360 if (io->io_hdr.flags & CTL_FLAG_ABORT) 2361 entry->cmd_flags |= CTL_OOACMD_FLAG_ABORT; 2362 2363 if (io->io_hdr.flags & CTL_FLAG_IS_WAS_ON_RTR) 2364 entry->cmd_flags |= CTL_OOACMD_FLAG_RTR; 2365 2366 if (io->io_hdr.flags & CTL_FLAG_DMA_QUEUED) 2367 entry->cmd_flags |= CTL_OOACMD_FLAG_DMA_QUEUED; 2368 } 2369 mtx_unlock(&lun->lun_lock); 2370} 2371 2372static void * 2373ctl_copyin_alloc(void *user_addr, unsigned int len, char *error_str, 2374 size_t error_str_len) 2375{ 2376 void *kptr; 2377 2378 kptr = malloc(len, M_CTL, M_WAITOK | M_ZERO); 2379 2380 if (copyin(user_addr, kptr, len) != 0) { 2381 snprintf(error_str, error_str_len, "Error copying %d bytes " 2382 "from user address %p to kernel address %p", len, 2383 user_addr, kptr); 2384 free(kptr, M_CTL); 2385 return (NULL); 2386 } 2387 2388 return (kptr); 2389} 2390 2391static void 2392ctl_free_args(int num_args, struct ctl_be_arg *args) 2393{ 2394 int i; 2395 2396 if (args == NULL) 2397 return; 2398 2399 for (i = 0; i < num_args; i++) { 2400 free(args[i].kname, M_CTL); 2401 free(args[i].kvalue, M_CTL); 2402 } 2403 2404 free(args, M_CTL); 2405} 2406 2407static struct ctl_be_arg * 2408ctl_copyin_args(int num_args, struct ctl_be_arg *uargs, 2409 char *error_str, size_t error_str_len) 2410{ 2411 struct ctl_be_arg *args; 2412 int i; 2413 2414 args = ctl_copyin_alloc(uargs, num_args * sizeof(*args), 2415 error_str, error_str_len); 2416 2417 if (args == NULL) 2418 goto bailout; 2419 2420 for (i = 0; i < num_args; i++) { 2421 args[i].kname = NULL; 2422 args[i].kvalue = NULL; 2423 } 2424 2425 for (i = 0; i < num_args; i++) { 2426 uint8_t *tmpptr; 2427 2428 if (args[i].namelen == 0) { 2429 snprintf(error_str, error_str_len, "Argument %d " 2430 "name length is zero", i); 2431 goto bailout; 2432 } 2433 2434 args[i].kname = ctl_copyin_alloc(args[i].name, 2435 args[i].namelen, error_str, error_str_len); 2436 if (args[i].kname == NULL) 2437 goto bailout; 2438 2439 if (args[i].kname[args[i].namelen - 1] != '\0') { 2440 snprintf(error_str, error_str_len, "Argument %d " 2441 "name is not NUL-terminated", i); 2442 goto bailout; 2443 } 2444 2445 if (args[i].flags & CTL_BEARG_RD) { 2446 if (args[i].vallen == 0) { 2447 snprintf(error_str, error_str_len, "Argument %d " 2448 "value length is zero", i); 2449 goto bailout; 2450 } 2451 2452 tmpptr = ctl_copyin_alloc(args[i].value, 2453 args[i].vallen, error_str, error_str_len); 2454 if (tmpptr == NULL) 2455 goto bailout; 2456 2457 if ((args[i].flags & CTL_BEARG_ASCII) 2458 && (tmpptr[args[i].vallen - 1] != '\0')) { 2459 snprintf(error_str, error_str_len, "Argument " 2460 "%d value is not NUL-terminated", i); 2461 free(tmpptr, M_CTL); 2462 goto bailout; 2463 } 2464 args[i].kvalue = tmpptr; 2465 } else { 2466 args[i].kvalue = malloc(args[i].vallen, 2467 M_CTL, M_WAITOK | M_ZERO); 2468 } 2469 } 2470 2471 return (args); 2472bailout: 2473 2474 ctl_free_args(num_args, args); 2475 2476 return (NULL); 2477} 2478 2479static void 2480ctl_copyout_args(int num_args, struct ctl_be_arg *args) 2481{ 2482 int i; 2483 2484 for (i = 0; i < num_args; i++) { 2485 if (args[i].flags & CTL_BEARG_WR) 2486 copyout(args[i].kvalue, args[i].value, args[i].vallen); 2487 } 2488} 2489 2490/* 2491 * Escape characters that are illegal or not recommended in XML. 2492 */ 2493int 2494ctl_sbuf_printf_esc(struct sbuf *sb, char *str, int size) 2495{ 2496 char *end = str + size; 2497 int retval; 2498 2499 retval = 0; 2500 2501 for (; *str && str < end; str++) { 2502 switch (*str) { 2503 case '&': 2504 retval = sbuf_printf(sb, "&"); 2505 break; 2506 case '>': 2507 retval = sbuf_printf(sb, ">"); 2508 break; 2509 case '<': 2510 retval = sbuf_printf(sb, "<"); 2511 break; 2512 default: 2513 retval = sbuf_putc(sb, *str); 2514 break; 2515 } 2516 2517 if (retval != 0) 2518 break; 2519 2520 } 2521 2522 return (retval); 2523} 2524 2525static void 2526ctl_id_sbuf(struct ctl_devid *id, struct sbuf *sb) 2527{ 2528 struct scsi_vpd_id_descriptor *desc; 2529 int i; 2530 2531 if (id == NULL || id->len < 4) 2532 return; 2533 desc = (struct scsi_vpd_id_descriptor *)id->data; 2534 switch (desc->id_type & SVPD_ID_TYPE_MASK) { 2535 case SVPD_ID_TYPE_T10: 2536 sbuf_printf(sb, "t10."); 2537 break; 2538 case SVPD_ID_TYPE_EUI64: 2539 sbuf_printf(sb, "eui."); 2540 break; 2541 case SVPD_ID_TYPE_NAA: 2542 sbuf_printf(sb, "naa."); 2543 break; 2544 case SVPD_ID_TYPE_SCSI_NAME: 2545 break; 2546 } 2547 switch (desc->proto_codeset & SVPD_ID_CODESET_MASK) { 2548 case SVPD_ID_CODESET_BINARY: 2549 for (i = 0; i < desc->length; i++) 2550 sbuf_printf(sb, "%02x", desc->identifier[i]); 2551 break; 2552 case SVPD_ID_CODESET_ASCII: 2553 sbuf_printf(sb, "%.*s", (int)desc->length, 2554 (char *)desc->identifier); 2555 break; 2556 case SVPD_ID_CODESET_UTF8: 2557 sbuf_printf(sb, "%s", (char *)desc->identifier); 2558 break; 2559 } 2560} 2561 2562static int 2563ctl_ioctl(struct cdev *dev, u_long cmd, caddr_t addr, int flag, 2564 struct thread *td) 2565{ 2566 struct ctl_softc *softc = dev->si_drv1; 2567 struct ctl_lun *lun; 2568 int retval; 2569 2570 retval = 0; 2571 2572 switch (cmd) { 2573 case CTL_IO: 2574 retval = ctl_ioctl_io(dev, cmd, addr, flag, td); 2575 break; 2576 case CTL_ENABLE_PORT: 2577 case CTL_DISABLE_PORT: 2578 case CTL_SET_PORT_WWNS: { 2579 struct ctl_port *port; 2580 struct ctl_port_entry *entry; 2581 2582 entry = (struct ctl_port_entry *)addr; 2583 2584 mtx_lock(&softc->ctl_lock); 2585 STAILQ_FOREACH(port, &softc->port_list, links) { 2586 int action, done; 2587 2588 if (port->targ_port < softc->port_min || 2589 port->targ_port >= softc->port_max) 2590 continue; 2591 2592 action = 0; 2593 done = 0; 2594 if ((entry->port_type == CTL_PORT_NONE) 2595 && (entry->targ_port == port->targ_port)) { 2596 /* 2597 * If the user only wants to enable or 2598 * disable or set WWNs on a specific port, 2599 * do the operation and we're done. 2600 */ 2601 action = 1; 2602 done = 1; 2603 } else if (entry->port_type & port->port_type) { 2604 /* 2605 * Compare the user's type mask with the 2606 * particular frontend type to see if we 2607 * have a match. 2608 */ 2609 action = 1; 2610 done = 0; 2611 2612 /* 2613 * Make sure the user isn't trying to set 2614 * WWNs on multiple ports at the same time. 2615 */ 2616 if (cmd == CTL_SET_PORT_WWNS) { 2617 printf("%s: Can't set WWNs on " 2618 "multiple ports\n", __func__); 2619 retval = EINVAL; 2620 break; 2621 } 2622 } 2623 if (action == 0) 2624 continue; 2625 2626 /* 2627 * XXX KDM we have to drop the lock here, because 2628 * the online/offline operations can potentially 2629 * block. We need to reference count the frontends 2630 * so they can't go away, 2631 */ 2632 if (cmd == CTL_ENABLE_PORT) { 2633 mtx_unlock(&softc->ctl_lock); 2634 ctl_port_online(port); 2635 mtx_lock(&softc->ctl_lock); 2636 } else if (cmd == CTL_DISABLE_PORT) { 2637 mtx_unlock(&softc->ctl_lock); 2638 ctl_port_offline(port); 2639 mtx_lock(&softc->ctl_lock); 2640 } else if (cmd == CTL_SET_PORT_WWNS) { 2641 ctl_port_set_wwns(port, 2642 (entry->flags & CTL_PORT_WWNN_VALID) ? 2643 1 : 0, entry->wwnn, 2644 (entry->flags & CTL_PORT_WWPN_VALID) ? 2645 1 : 0, entry->wwpn); 2646 } 2647 if (done != 0) 2648 break; 2649 } 2650 mtx_unlock(&softc->ctl_lock); 2651 break; 2652 } 2653 case CTL_GET_OOA: { 2654 struct ctl_ooa *ooa_hdr; 2655 struct ctl_ooa_entry *entries; 2656 uint32_t cur_fill_num; 2657 2658 ooa_hdr = (struct ctl_ooa *)addr; 2659 2660 if ((ooa_hdr->alloc_len == 0) 2661 || (ooa_hdr->alloc_num == 0)) { 2662 printf("%s: CTL_GET_OOA: alloc len %u and alloc num %u " 2663 "must be non-zero\n", __func__, 2664 ooa_hdr->alloc_len, ooa_hdr->alloc_num); 2665 retval = EINVAL; 2666 break; 2667 } 2668 2669 if (ooa_hdr->alloc_len != (ooa_hdr->alloc_num * 2670 sizeof(struct ctl_ooa_entry))) { 2671 printf("%s: CTL_GET_OOA: alloc len %u must be alloc " 2672 "num %d * sizeof(struct ctl_ooa_entry) %zd\n", 2673 __func__, ooa_hdr->alloc_len, 2674 ooa_hdr->alloc_num,sizeof(struct ctl_ooa_entry)); 2675 retval = EINVAL; 2676 break; 2677 } 2678 2679 entries = malloc(ooa_hdr->alloc_len, M_CTL, M_WAITOK | M_ZERO); 2680 if (entries == NULL) { 2681 printf("%s: could not allocate %d bytes for OOA " 2682 "dump\n", __func__, ooa_hdr->alloc_len); 2683 retval = ENOMEM; 2684 break; 2685 } 2686 2687 mtx_lock(&softc->ctl_lock); 2688 if (((ooa_hdr->flags & CTL_OOA_FLAG_ALL_LUNS) == 0) 2689 && ((ooa_hdr->lun_num >= CTL_MAX_LUNS) 2690 || (softc->ctl_luns[ooa_hdr->lun_num] == NULL))) { 2691 mtx_unlock(&softc->ctl_lock); 2692 free(entries, M_CTL); 2693 printf("%s: CTL_GET_OOA: invalid LUN %ju\n", 2694 __func__, (uintmax_t)ooa_hdr->lun_num); 2695 retval = EINVAL; 2696 break; 2697 } 2698 2699 cur_fill_num = 0; 2700 2701 if (ooa_hdr->flags & CTL_OOA_FLAG_ALL_LUNS) { 2702 STAILQ_FOREACH(lun, &softc->lun_list, links) { 2703 ctl_ioctl_fill_ooa(lun, &cur_fill_num, 2704 ooa_hdr, entries); 2705 } 2706 } else { 2707 lun = softc->ctl_luns[ooa_hdr->lun_num]; 2708 ctl_ioctl_fill_ooa(lun, &cur_fill_num, ooa_hdr, 2709 entries); 2710 } 2711 mtx_unlock(&softc->ctl_lock); 2712 2713 ooa_hdr->fill_num = min(cur_fill_num, ooa_hdr->alloc_num); 2714 ooa_hdr->fill_len = ooa_hdr->fill_num * 2715 sizeof(struct ctl_ooa_entry); 2716 retval = copyout(entries, ooa_hdr->entries, ooa_hdr->fill_len); 2717 if (retval != 0) { 2718 printf("%s: error copying out %d bytes for OOA dump\n", 2719 __func__, ooa_hdr->fill_len); 2720 } 2721 2722 getbinuptime(&ooa_hdr->cur_bt); 2723 2724 if (cur_fill_num > ooa_hdr->alloc_num) { 2725 ooa_hdr->dropped_num = cur_fill_num -ooa_hdr->alloc_num; 2726 ooa_hdr->status = CTL_OOA_NEED_MORE_SPACE; 2727 } else { 2728 ooa_hdr->dropped_num = 0; 2729 ooa_hdr->status = CTL_OOA_OK; 2730 } 2731 2732 free(entries, M_CTL); 2733 break; 2734 } 2735 case CTL_DELAY_IO: { 2736 struct ctl_io_delay_info *delay_info; 2737 2738 delay_info = (struct ctl_io_delay_info *)addr; 2739 2740#ifdef CTL_IO_DELAY 2741 mtx_lock(&softc->ctl_lock); 2742 2743 if ((delay_info->lun_id >= CTL_MAX_LUNS) 2744 || (softc->ctl_luns[delay_info->lun_id] == NULL)) { 2745 delay_info->status = CTL_DELAY_STATUS_INVALID_LUN; 2746 } else { 2747 lun = softc->ctl_luns[delay_info->lun_id]; 2748 mtx_lock(&lun->lun_lock); 2749 2750 delay_info->status = CTL_DELAY_STATUS_OK; 2751 2752 switch (delay_info->delay_type) { 2753 case CTL_DELAY_TYPE_CONT: 2754 break; 2755 case CTL_DELAY_TYPE_ONESHOT: 2756 break; 2757 default: 2758 delay_info->status = 2759 CTL_DELAY_STATUS_INVALID_TYPE; 2760 break; 2761 } 2762 2763 switch (delay_info->delay_loc) { 2764 case CTL_DELAY_LOC_DATAMOVE: 2765 lun->delay_info.datamove_type = 2766 delay_info->delay_type; 2767 lun->delay_info.datamove_delay = 2768 delay_info->delay_secs; 2769 break; 2770 case CTL_DELAY_LOC_DONE: 2771 lun->delay_info.done_type = 2772 delay_info->delay_type; 2773 lun->delay_info.done_delay = 2774 delay_info->delay_secs; 2775 break; 2776 default: 2777 delay_info->status = 2778 CTL_DELAY_STATUS_INVALID_LOC; 2779 break; 2780 } 2781 mtx_unlock(&lun->lun_lock); 2782 } 2783 2784 mtx_unlock(&softc->ctl_lock); 2785#else 2786 delay_info->status = CTL_DELAY_STATUS_NOT_IMPLEMENTED; 2787#endif /* CTL_IO_DELAY */ 2788 break; 2789 } 2790 case CTL_GETSTATS: { 2791 struct ctl_stats *stats; 2792 int i; 2793 2794 stats = (struct ctl_stats *)addr; 2795 2796 if ((sizeof(struct ctl_lun_io_stats) * softc->num_luns) > 2797 stats->alloc_len) { 2798 stats->status = CTL_SS_NEED_MORE_SPACE; 2799 stats->num_luns = softc->num_luns; 2800 break; 2801 } 2802 /* 2803 * XXX KDM no locking here. If the LUN list changes, 2804 * things can blow up. 2805 */ 2806 i = 0; 2807 STAILQ_FOREACH(lun, &softc->lun_list, links) { 2808 retval = copyout(&lun->stats, &stats->lun_stats[i++], 2809 sizeof(lun->stats)); 2810 if (retval != 0) 2811 break; 2812 } 2813 stats->num_luns = softc->num_luns; 2814 stats->fill_len = sizeof(struct ctl_lun_io_stats) * 2815 softc->num_luns; 2816 stats->status = CTL_SS_OK; 2817#ifdef CTL_TIME_IO 2818 stats->flags = CTL_STATS_FLAG_TIME_VALID; 2819#else 2820 stats->flags = CTL_STATS_FLAG_NONE; 2821#endif 2822 getnanouptime(&stats->timestamp); 2823 break; 2824 } 2825 case CTL_ERROR_INJECT: { 2826 struct ctl_error_desc *err_desc, *new_err_desc; 2827 2828 err_desc = (struct ctl_error_desc *)addr; 2829 2830 new_err_desc = malloc(sizeof(*new_err_desc), M_CTL, 2831 M_WAITOK | M_ZERO); 2832 bcopy(err_desc, new_err_desc, sizeof(*new_err_desc)); 2833 2834 mtx_lock(&softc->ctl_lock); 2835 lun = softc->ctl_luns[err_desc->lun_id]; 2836 if (lun == NULL) { 2837 mtx_unlock(&softc->ctl_lock); 2838 free(new_err_desc, M_CTL); 2839 printf("%s: CTL_ERROR_INJECT: invalid LUN %ju\n", 2840 __func__, (uintmax_t)err_desc->lun_id); 2841 retval = EINVAL; 2842 break; 2843 } 2844 mtx_lock(&lun->lun_lock); 2845 mtx_unlock(&softc->ctl_lock); 2846 2847 /* 2848 * We could do some checking here to verify the validity 2849 * of the request, but given the complexity of error 2850 * injection requests, the checking logic would be fairly 2851 * complex. 2852 * 2853 * For now, if the request is invalid, it just won't get 2854 * executed and might get deleted. 2855 */ 2856 STAILQ_INSERT_TAIL(&lun->error_list, new_err_desc, links); 2857 2858 /* 2859 * XXX KDM check to make sure the serial number is unique, 2860 * in case we somehow manage to wrap. That shouldn't 2861 * happen for a very long time, but it's the right thing to 2862 * do. 2863 */ 2864 new_err_desc->serial = lun->error_serial; 2865 err_desc->serial = lun->error_serial; 2866 lun->error_serial++; 2867 2868 mtx_unlock(&lun->lun_lock); 2869 break; 2870 } 2871 case CTL_ERROR_INJECT_DELETE: { 2872 struct ctl_error_desc *delete_desc, *desc, *desc2; 2873 int delete_done; 2874 2875 delete_desc = (struct ctl_error_desc *)addr; 2876 delete_done = 0; 2877 2878 mtx_lock(&softc->ctl_lock); 2879 lun = softc->ctl_luns[delete_desc->lun_id]; 2880 if (lun == NULL) { 2881 mtx_unlock(&softc->ctl_lock); 2882 printf("%s: CTL_ERROR_INJECT_DELETE: invalid LUN %ju\n", 2883 __func__, (uintmax_t)delete_desc->lun_id); 2884 retval = EINVAL; 2885 break; 2886 } 2887 mtx_lock(&lun->lun_lock); 2888 mtx_unlock(&softc->ctl_lock); 2889 STAILQ_FOREACH_SAFE(desc, &lun->error_list, links, desc2) { 2890 if (desc->serial != delete_desc->serial) 2891 continue; 2892 2893 STAILQ_REMOVE(&lun->error_list, desc, ctl_error_desc, 2894 links); 2895 free(desc, M_CTL); 2896 delete_done = 1; 2897 } 2898 mtx_unlock(&lun->lun_lock); 2899 if (delete_done == 0) { 2900 printf("%s: CTL_ERROR_INJECT_DELETE: can't find " 2901 "error serial %ju on LUN %u\n", __func__, 2902 delete_desc->serial, delete_desc->lun_id); 2903 retval = EINVAL; 2904 break; 2905 } 2906 break; 2907 } 2908 case CTL_DUMP_STRUCTS: { 2909 int j, k; 2910 struct ctl_port *port; 2911 struct ctl_frontend *fe; 2912 2913 mtx_lock(&softc->ctl_lock); 2914 printf("CTL Persistent Reservation information start:\n"); 2915 STAILQ_FOREACH(lun, &softc->lun_list, links) { 2916 mtx_lock(&lun->lun_lock); 2917 if ((lun->flags & CTL_LUN_DISABLED) != 0) { 2918 mtx_unlock(&lun->lun_lock); 2919 continue; 2920 } 2921 2922 for (j = 0; j < CTL_MAX_PORTS; j++) { 2923 if (lun->pr_keys[j] == NULL) 2924 continue; 2925 for (k = 0; k < CTL_MAX_INIT_PER_PORT; k++){ 2926 if (lun->pr_keys[j][k] == 0) 2927 continue; 2928 printf(" LUN %ju port %d iid %d key " 2929 "%#jx\n", lun->lun, j, k, 2930 (uintmax_t)lun->pr_keys[j][k]); 2931 } 2932 } 2933 mtx_unlock(&lun->lun_lock); 2934 } 2935 printf("CTL Persistent Reservation information end\n"); 2936 printf("CTL Ports:\n"); 2937 STAILQ_FOREACH(port, &softc->port_list, links) { 2938 printf(" Port %d '%s' Frontend '%s' Type %u pp %d vp %d WWNN " 2939 "%#jx WWPN %#jx\n", port->targ_port, port->port_name, 2940 port->frontend->name, port->port_type, 2941 port->physical_port, port->virtual_port, 2942 (uintmax_t)port->wwnn, (uintmax_t)port->wwpn); 2943 for (j = 0; j < CTL_MAX_INIT_PER_PORT; j++) { 2944 if (port->wwpn_iid[j].in_use == 0 && 2945 port->wwpn_iid[j].wwpn == 0 && 2946 port->wwpn_iid[j].name == NULL) 2947 continue; 2948 2949 printf(" iid %u use %d WWPN %#jx '%s'\n", 2950 j, port->wwpn_iid[j].in_use, 2951 (uintmax_t)port->wwpn_iid[j].wwpn, 2952 port->wwpn_iid[j].name); 2953 } 2954 } 2955 printf("CTL Port information end\n"); 2956 mtx_unlock(&softc->ctl_lock); 2957 /* 2958 * XXX KDM calling this without a lock. We'd likely want 2959 * to drop the lock before calling the frontend's dump 2960 * routine anyway. 2961 */ 2962 printf("CTL Frontends:\n"); 2963 STAILQ_FOREACH(fe, &softc->fe_list, links) { 2964 printf(" Frontend '%s'\n", fe->name); 2965 if (fe->fe_dump != NULL) 2966 fe->fe_dump(); 2967 } 2968 printf("CTL Frontend information end\n"); 2969 break; 2970 } 2971 case CTL_LUN_REQ: { 2972 struct ctl_lun_req *lun_req; 2973 struct ctl_backend_driver *backend; 2974 2975 lun_req = (struct ctl_lun_req *)addr; 2976 2977 backend = ctl_backend_find(lun_req->backend); 2978 if (backend == NULL) { 2979 lun_req->status = CTL_LUN_ERROR; 2980 snprintf(lun_req->error_str, 2981 sizeof(lun_req->error_str), 2982 "Backend \"%s\" not found.", 2983 lun_req->backend); 2984 break; 2985 } 2986 if (lun_req->num_be_args > 0) { 2987 lun_req->kern_be_args = ctl_copyin_args( 2988 lun_req->num_be_args, 2989 lun_req->be_args, 2990 lun_req->error_str, 2991 sizeof(lun_req->error_str)); 2992 if (lun_req->kern_be_args == NULL) { 2993 lun_req->status = CTL_LUN_ERROR; 2994 break; 2995 } 2996 } 2997 2998 retval = backend->ioctl(dev, cmd, addr, flag, td); 2999 3000 if (lun_req->num_be_args > 0) { 3001 ctl_copyout_args(lun_req->num_be_args, 3002 lun_req->kern_be_args); 3003 ctl_free_args(lun_req->num_be_args, 3004 lun_req->kern_be_args); 3005 } 3006 break; 3007 } 3008 case CTL_LUN_LIST: { 3009 struct sbuf *sb; 3010 struct ctl_lun_list *list; 3011 struct ctl_option *opt; 3012 3013 list = (struct ctl_lun_list *)addr; 3014 3015 /* 3016 * Allocate a fixed length sbuf here, based on the length 3017 * of the user's buffer. We could allocate an auto-extending 3018 * buffer, and then tell the user how much larger our 3019 * amount of data is than his buffer, but that presents 3020 * some problems: 3021 * 3022 * 1. The sbuf(9) routines use a blocking malloc, and so 3023 * we can't hold a lock while calling them with an 3024 * auto-extending buffer. 3025 * 3026 * 2. There is not currently a LUN reference counting 3027 * mechanism, outside of outstanding transactions on 3028 * the LUN's OOA queue. So a LUN could go away on us 3029 * while we're getting the LUN number, backend-specific 3030 * information, etc. Thus, given the way things 3031 * currently work, we need to hold the CTL lock while 3032 * grabbing LUN information. 3033 * 3034 * So, from the user's standpoint, the best thing to do is 3035 * allocate what he thinks is a reasonable buffer length, 3036 * and then if he gets a CTL_LUN_LIST_NEED_MORE_SPACE error, 3037 * double the buffer length and try again. (And repeat 3038 * that until he succeeds.) 3039 */ 3040 sb = sbuf_new(NULL, NULL, list->alloc_len, SBUF_FIXEDLEN); 3041 if (sb == NULL) { 3042 list->status = CTL_LUN_LIST_ERROR; 3043 snprintf(list->error_str, sizeof(list->error_str), 3044 "Unable to allocate %d bytes for LUN list", 3045 list->alloc_len); 3046 break; 3047 } 3048 3049 sbuf_printf(sb, "<ctllunlist>\n"); 3050 3051 mtx_lock(&softc->ctl_lock); 3052 STAILQ_FOREACH(lun, &softc->lun_list, links) { 3053 mtx_lock(&lun->lun_lock); 3054 retval = sbuf_printf(sb, "<lun id=\"%ju\">\n", 3055 (uintmax_t)lun->lun); 3056 3057 /* 3058 * Bail out as soon as we see that we've overfilled 3059 * the buffer. 3060 */ 3061 if (retval != 0) 3062 break; 3063 3064 retval = sbuf_printf(sb, "\t<backend_type>%s" 3065 "</backend_type>\n", 3066 (lun->backend == NULL) ? "none" : 3067 lun->backend->name); 3068 3069 if (retval != 0) 3070 break; 3071 3072 retval = sbuf_printf(sb, "\t<lun_type>%d</lun_type>\n", 3073 lun->be_lun->lun_type); 3074 3075 if (retval != 0) 3076 break; 3077 3078 if (lun->backend == NULL) { 3079 retval = sbuf_printf(sb, "</lun>\n"); 3080 if (retval != 0) 3081 break; 3082 continue; 3083 } 3084 3085 retval = sbuf_printf(sb, "\t<size>%ju</size>\n", 3086 (lun->be_lun->maxlba > 0) ? 3087 lun->be_lun->maxlba + 1 : 0); 3088 3089 if (retval != 0) 3090 break; 3091 3092 retval = sbuf_printf(sb, "\t<blocksize>%u</blocksize>\n", 3093 lun->be_lun->blocksize); 3094 3095 if (retval != 0) 3096 break; 3097 3098 retval = sbuf_printf(sb, "\t<serial_number>"); 3099 3100 if (retval != 0) 3101 break; 3102 3103 retval = ctl_sbuf_printf_esc(sb, 3104 lun->be_lun->serial_num, 3105 sizeof(lun->be_lun->serial_num)); 3106 3107 if (retval != 0) 3108 break; 3109 3110 retval = sbuf_printf(sb, "</serial_number>\n"); 3111 3112 if (retval != 0) 3113 break; 3114 3115 retval = sbuf_printf(sb, "\t<device_id>"); 3116 3117 if (retval != 0) 3118 break; 3119 3120 retval = ctl_sbuf_printf_esc(sb, 3121 lun->be_lun->device_id, 3122 sizeof(lun->be_lun->device_id)); 3123 3124 if (retval != 0) 3125 break; 3126 3127 retval = sbuf_printf(sb, "</device_id>\n"); 3128 3129 if (retval != 0) 3130 break; 3131 3132 if (lun->backend->lun_info != NULL) { 3133 retval = lun->backend->lun_info(lun->be_lun->be_lun, sb); 3134 if (retval != 0) 3135 break; 3136 } 3137 STAILQ_FOREACH(opt, &lun->be_lun->options, links) { 3138 retval = sbuf_printf(sb, "\t<%s>%s</%s>\n", 3139 opt->name, opt->value, opt->name); 3140 if (retval != 0) 3141 break; 3142 } 3143 3144 retval = sbuf_printf(sb, "</lun>\n"); 3145 3146 if (retval != 0) 3147 break; 3148 mtx_unlock(&lun->lun_lock); 3149 } 3150 if (lun != NULL) 3151 mtx_unlock(&lun->lun_lock); 3152 mtx_unlock(&softc->ctl_lock); 3153 3154 if ((retval != 0) 3155 || ((retval = sbuf_printf(sb, "</ctllunlist>\n")) != 0)) { 3156 retval = 0; 3157 sbuf_delete(sb); 3158 list->status = CTL_LUN_LIST_NEED_MORE_SPACE; 3159 snprintf(list->error_str, sizeof(list->error_str), 3160 "Out of space, %d bytes is too small", 3161 list->alloc_len); 3162 break; 3163 } 3164 3165 sbuf_finish(sb); 3166 3167 retval = copyout(sbuf_data(sb), list->lun_xml, 3168 sbuf_len(sb) + 1); 3169 3170 list->fill_len = sbuf_len(sb) + 1; 3171 list->status = CTL_LUN_LIST_OK; 3172 sbuf_delete(sb); 3173 break; 3174 } 3175 case CTL_ISCSI: { 3176 struct ctl_iscsi *ci; 3177 struct ctl_frontend *fe; 3178 3179 ci = (struct ctl_iscsi *)addr; 3180 3181 fe = ctl_frontend_find("iscsi"); 3182 if (fe == NULL) { 3183 ci->status = CTL_ISCSI_ERROR; 3184 snprintf(ci->error_str, sizeof(ci->error_str), 3185 "Frontend \"iscsi\" not found."); 3186 break; 3187 } 3188 3189 retval = fe->ioctl(dev, cmd, addr, flag, td); 3190 break; 3191 } 3192 case CTL_PORT_REQ: { 3193 struct ctl_req *req; 3194 struct ctl_frontend *fe; 3195 3196 req = (struct ctl_req *)addr; 3197 3198 fe = ctl_frontend_find(req->driver); 3199 if (fe == NULL) { 3200 req->status = CTL_LUN_ERROR; 3201 snprintf(req->error_str, sizeof(req->error_str), 3202 "Frontend \"%s\" not found.", req->driver); 3203 break; 3204 } 3205 if (req->num_args > 0) { 3206 req->kern_args = ctl_copyin_args(req->num_args, 3207 req->args, req->error_str, sizeof(req->error_str)); 3208 if (req->kern_args == NULL) { 3209 req->status = CTL_LUN_ERROR; 3210 break; 3211 } 3212 } 3213 3214 if (fe->ioctl) 3215 retval = fe->ioctl(dev, cmd, addr, flag, td); 3216 else 3217 retval = ENODEV; 3218 3219 if (req->num_args > 0) { 3220 ctl_copyout_args(req->num_args, req->kern_args); 3221 ctl_free_args(req->num_args, req->kern_args); 3222 } 3223 break; 3224 } 3225 case CTL_PORT_LIST: { 3226 struct sbuf *sb; 3227 struct ctl_port *port; 3228 struct ctl_lun_list *list; 3229 struct ctl_option *opt; 3230 int j; 3231 uint32_t plun; 3232 3233 list = (struct ctl_lun_list *)addr; 3234 3235 sb = sbuf_new(NULL, NULL, list->alloc_len, SBUF_FIXEDLEN); 3236 if (sb == NULL) { 3237 list->status = CTL_LUN_LIST_ERROR; 3238 snprintf(list->error_str, sizeof(list->error_str), 3239 "Unable to allocate %d bytes for LUN list", 3240 list->alloc_len); 3241 break; 3242 } 3243 3244 sbuf_printf(sb, "<ctlportlist>\n"); 3245 3246 mtx_lock(&softc->ctl_lock); 3247 STAILQ_FOREACH(port, &softc->port_list, links) { 3248 retval = sbuf_printf(sb, "<targ_port id=\"%ju\">\n", 3249 (uintmax_t)port->targ_port); 3250 3251 /* 3252 * Bail out as soon as we see that we've overfilled 3253 * the buffer. 3254 */ 3255 if (retval != 0) 3256 break; 3257 3258 retval = sbuf_printf(sb, "\t<frontend_type>%s" 3259 "</frontend_type>\n", port->frontend->name); 3260 if (retval != 0) 3261 break; 3262 3263 retval = sbuf_printf(sb, "\t<port_type>%d</port_type>\n", 3264 port->port_type); 3265 if (retval != 0) 3266 break; 3267 3268 retval = sbuf_printf(sb, "\t<online>%s</online>\n", 3269 (port->status & CTL_PORT_STATUS_ONLINE) ? "YES" : "NO"); 3270 if (retval != 0) 3271 break; 3272 3273 retval = sbuf_printf(sb, "\t<port_name>%s</port_name>\n", 3274 port->port_name); 3275 if (retval != 0) 3276 break; 3277 3278 retval = sbuf_printf(sb, "\t<physical_port>%d</physical_port>\n", 3279 port->physical_port); 3280 if (retval != 0) 3281 break; 3282 3283 retval = sbuf_printf(sb, "\t<virtual_port>%d</virtual_port>\n", 3284 port->virtual_port); 3285 if (retval != 0) 3286 break; 3287 3288 if (port->target_devid != NULL) { 3289 sbuf_printf(sb, "\t<target>"); 3290 ctl_id_sbuf(port->target_devid, sb); 3291 sbuf_printf(sb, "</target>\n"); 3292 } 3293 3294 if (port->port_devid != NULL) { 3295 sbuf_printf(sb, "\t<port>"); 3296 ctl_id_sbuf(port->port_devid, sb); 3297 sbuf_printf(sb, "</port>\n"); 3298 } 3299 3300 if (port->port_info != NULL) { 3301 retval = port->port_info(port->onoff_arg, sb); 3302 if (retval != 0) 3303 break; 3304 } 3305 STAILQ_FOREACH(opt, &port->options, links) { 3306 retval = sbuf_printf(sb, "\t<%s>%s</%s>\n", 3307 opt->name, opt->value, opt->name); 3308 if (retval != 0) 3309 break; 3310 } 3311 3312 if (port->lun_map != NULL) { 3313 sbuf_printf(sb, "\t<lun_map>on</lun_map>\n"); 3314 for (j = 0; j < CTL_MAX_LUNS; j++) { 3315 plun = ctl_lun_map_from_port(port, j); 3316 if (plun == UINT32_MAX) 3317 continue; 3318 sbuf_printf(sb, 3319 "\t<lun id=\"%u\">%u</lun>\n", 3320 j, plun); 3321 } 3322 } 3323 3324 for (j = 0; j < CTL_MAX_INIT_PER_PORT; j++) { 3325 if (port->wwpn_iid[j].in_use == 0 || 3326 (port->wwpn_iid[j].wwpn == 0 && 3327 port->wwpn_iid[j].name == NULL)) 3328 continue; 3329 3330 if (port->wwpn_iid[j].name != NULL) 3331 retval = sbuf_printf(sb, 3332 "\t<initiator id=\"%u\">%s</initiator>\n", 3333 j, port->wwpn_iid[j].name); 3334 else 3335 retval = sbuf_printf(sb, 3336 "\t<initiator id=\"%u\">naa.%08jx</initiator>\n", 3337 j, port->wwpn_iid[j].wwpn); 3338 if (retval != 0) 3339 break; 3340 } 3341 if (retval != 0) 3342 break; 3343 3344 retval = sbuf_printf(sb, "</targ_port>\n"); 3345 if (retval != 0) 3346 break; 3347 } 3348 mtx_unlock(&softc->ctl_lock); 3349 3350 if ((retval != 0) 3351 || ((retval = sbuf_printf(sb, "</ctlportlist>\n")) != 0)) { 3352 retval = 0; 3353 sbuf_delete(sb); 3354 list->status = CTL_LUN_LIST_NEED_MORE_SPACE; 3355 snprintf(list->error_str, sizeof(list->error_str), 3356 "Out of space, %d bytes is too small", 3357 list->alloc_len); 3358 break; 3359 } 3360 3361 sbuf_finish(sb); 3362 3363 retval = copyout(sbuf_data(sb), list->lun_xml, 3364 sbuf_len(sb) + 1); 3365 3366 list->fill_len = sbuf_len(sb) + 1; 3367 list->status = CTL_LUN_LIST_OK; 3368 sbuf_delete(sb); 3369 break; 3370 } 3371 case CTL_LUN_MAP: { 3372 struct ctl_lun_map *lm = (struct ctl_lun_map *)addr; 3373 struct ctl_port *port; 3374 3375 mtx_lock(&softc->ctl_lock); 3376 if (lm->port < softc->port_min || 3377 lm->port >= softc->port_max || 3378 (port = softc->ctl_ports[lm->port]) == NULL) { 3379 mtx_unlock(&softc->ctl_lock); 3380 return (ENXIO); 3381 } 3382 if (port->status & CTL_PORT_STATUS_ONLINE) { 3383 STAILQ_FOREACH(lun, &softc->lun_list, links) { 3384 if (ctl_lun_map_to_port(port, lun->lun) == 3385 UINT32_MAX) 3386 continue; 3387 mtx_lock(&lun->lun_lock); 3388 ctl_est_ua_port(lun, lm->port, -1, 3389 CTL_UA_LUN_CHANGE); 3390 mtx_unlock(&lun->lun_lock); 3391 } 3392 } 3393 mtx_unlock(&softc->ctl_lock); // XXX: port_enable sleeps 3394 if (lm->plun < CTL_MAX_LUNS) { 3395 if (lm->lun == UINT32_MAX) 3396 retval = ctl_lun_map_unset(port, lm->plun); 3397 else if (lm->lun < CTL_MAX_LUNS && 3398 softc->ctl_luns[lm->lun] != NULL) 3399 retval = ctl_lun_map_set(port, lm->plun, lm->lun); 3400 else 3401 return (ENXIO); 3402 } else if (lm->plun == UINT32_MAX) { 3403 if (lm->lun == UINT32_MAX) 3404 retval = ctl_lun_map_deinit(port); 3405 else 3406 retval = ctl_lun_map_init(port); 3407 } else 3408 return (ENXIO); 3409 if (port->status & CTL_PORT_STATUS_ONLINE) 3410 ctl_isc_announce_port(port); 3411 break; 3412 } 3413 default: { 3414 /* XXX KDM should we fix this? */ 3415#if 0 3416 struct ctl_backend_driver *backend; 3417 unsigned int type; 3418 int found; 3419 3420 found = 0; 3421 3422 /* 3423 * We encode the backend type as the ioctl type for backend 3424 * ioctls. So parse it out here, and then search for a 3425 * backend of this type. 3426 */ 3427 type = _IOC_TYPE(cmd); 3428 3429 STAILQ_FOREACH(backend, &softc->be_list, links) { 3430 if (backend->type == type) { 3431 found = 1; 3432 break; 3433 } 3434 } 3435 if (found == 0) { 3436 printf("ctl: unknown ioctl command %#lx or backend " 3437 "%d\n", cmd, type); 3438 retval = EINVAL; 3439 break; 3440 } 3441 retval = backend->ioctl(dev, cmd, addr, flag, td); 3442#endif 3443 retval = ENOTTY; 3444 break; 3445 } 3446 } 3447 return (retval); 3448} 3449 3450uint32_t 3451ctl_get_initindex(struct ctl_nexus *nexus) 3452{ 3453 return (nexus->initid + (nexus->targ_port * CTL_MAX_INIT_PER_PORT)); 3454} 3455 3456int 3457ctl_lun_map_init(struct ctl_port *port) 3458{ 3459 struct ctl_softc *softc = port->ctl_softc; 3460 struct ctl_lun *lun; 3461 uint32_t i; 3462 3463 if (port->lun_map == NULL) 3464 port->lun_map = malloc(sizeof(uint32_t) * CTL_MAX_LUNS, 3465 M_CTL, M_NOWAIT); 3466 if (port->lun_map == NULL) 3467 return (ENOMEM); 3468 for (i = 0; i < CTL_MAX_LUNS; i++) 3469 port->lun_map[i] = UINT32_MAX; 3470 if (port->status & CTL_PORT_STATUS_ONLINE) { 3471 if (port->lun_disable != NULL) { 3472 STAILQ_FOREACH(lun, &softc->lun_list, links) 3473 port->lun_disable(port->targ_lun_arg, lun->lun); 3474 } 3475 ctl_isc_announce_port(port); 3476 } 3477 return (0); 3478} 3479 3480int 3481ctl_lun_map_deinit(struct ctl_port *port) 3482{ 3483 struct ctl_softc *softc = port->ctl_softc; 3484 struct ctl_lun *lun; 3485 3486 if (port->lun_map == NULL) 3487 return (0); 3488 free(port->lun_map, M_CTL); 3489 port->lun_map = NULL; 3490 if (port->status & CTL_PORT_STATUS_ONLINE) { 3491 if (port->lun_enable != NULL) { 3492 STAILQ_FOREACH(lun, &softc->lun_list, links) 3493 port->lun_enable(port->targ_lun_arg, lun->lun); 3494 } 3495 ctl_isc_announce_port(port); 3496 } 3497 return (0); 3498} 3499 3500int 3501ctl_lun_map_set(struct ctl_port *port, uint32_t plun, uint32_t glun) 3502{ 3503 int status; 3504 uint32_t old; 3505 3506 if (port->lun_map == NULL) { 3507 status = ctl_lun_map_init(port); 3508 if (status != 0) 3509 return (status); 3510 } 3511 old = port->lun_map[plun]; 3512 port->lun_map[plun] = glun; 3513 if ((port->status & CTL_PORT_STATUS_ONLINE) && old == UINT32_MAX) { 3514 if (port->lun_enable != NULL) 3515 port->lun_enable(port->targ_lun_arg, plun); 3516 ctl_isc_announce_port(port); 3517 } 3518 return (0); 3519} 3520 3521int 3522ctl_lun_map_unset(struct ctl_port *port, uint32_t plun) 3523{ 3524 uint32_t old; 3525 3526 if (port->lun_map == NULL) 3527 return (0); 3528 old = port->lun_map[plun]; 3529 port->lun_map[plun] = UINT32_MAX; 3530 if ((port->status & CTL_PORT_STATUS_ONLINE) && old != UINT32_MAX) { 3531 if (port->lun_disable != NULL) 3532 port->lun_disable(port->targ_lun_arg, plun); 3533 ctl_isc_announce_port(port); 3534 } 3535 return (0); 3536} 3537 3538uint32_t 3539ctl_lun_map_from_port(struct ctl_port *port, uint32_t lun_id) 3540{ 3541 3542 if (port == NULL) 3543 return (UINT32_MAX); 3544 if (port->lun_map == NULL || lun_id == UINT32_MAX) 3545 return (lun_id); 3546 return (port->lun_map[lun_id]); 3547} 3548 3549uint32_t 3550ctl_lun_map_to_port(struct ctl_port *port, uint32_t lun_id) 3551{ 3552 uint32_t i; 3553 3554 if (port == NULL) 3555 return (UINT32_MAX); 3556 if (port->lun_map == NULL) 3557 return (lun_id); 3558 for (i = 0; i < CTL_MAX_LUNS; i++) { 3559 if (port->lun_map[i] == lun_id) 3560 return (i); 3561 } 3562 return (UINT32_MAX); 3563} 3564 3565uint32_t 3566ctl_decode_lun(uint64_t encoded) 3567{ 3568 uint8_t lun[8]; 3569 uint32_t result = 0xffffffff; 3570 3571 be64enc(lun, encoded); 3572 switch (lun[0] & RPL_LUNDATA_ATYP_MASK) { 3573 case RPL_LUNDATA_ATYP_PERIPH: 3574 if ((lun[0] & 0x3f) == 0 && lun[2] == 0 && lun[3] == 0 && 3575 lun[4] == 0 && lun[5] == 0 && lun[6] == 0 && lun[7] == 0) 3576 result = lun[1]; 3577 break; 3578 case RPL_LUNDATA_ATYP_FLAT: 3579 if (lun[2] == 0 && lun[3] == 0 && lun[4] == 0 && lun[5] == 0 && 3580 lun[6] == 0 && lun[7] == 0) 3581 result = ((lun[0] & 0x3f) << 8) + lun[1]; 3582 break; 3583 case RPL_LUNDATA_ATYP_EXTLUN: 3584 switch (lun[0] & RPL_LUNDATA_EXT_EAM_MASK) { 3585 case 0x02: 3586 switch (lun[0] & RPL_LUNDATA_EXT_LEN_MASK) { 3587 case 0x00: 3588 result = lun[1]; 3589 break; 3590 case 0x10: 3591 result = (lun[1] << 16) + (lun[2] << 8) + 3592 lun[3]; 3593 break; 3594 case 0x20: 3595 if (lun[1] == 0 && lun[6] == 0 && lun[7] == 0) 3596 result = (lun[2] << 24) + 3597 (lun[3] << 16) + (lun[4] << 8) + 3598 lun[5]; 3599 break; 3600 } 3601 break; 3602 case RPL_LUNDATA_EXT_EAM_NOT_SPEC: 3603 result = 0xffffffff; 3604 break; 3605 } 3606 break; 3607 } 3608 return (result); 3609} 3610 3611uint64_t 3612ctl_encode_lun(uint32_t decoded) 3613{ 3614 uint64_t l = decoded; 3615 3616 if (l <= 0xff) 3617 return (((uint64_t)RPL_LUNDATA_ATYP_PERIPH << 56) | (l << 48)); 3618 if (l <= 0x3fff) 3619 return (((uint64_t)RPL_LUNDATA_ATYP_FLAT << 56) | (l << 48)); 3620 if (l <= 0xffffff) 3621 return (((uint64_t)(RPL_LUNDATA_ATYP_EXTLUN | 0x12) << 56) | 3622 (l << 32)); 3623 return ((((uint64_t)RPL_LUNDATA_ATYP_EXTLUN | 0x22) << 56) | (l << 16)); 3624} 3625 3626static struct ctl_port * 3627ctl_io_port(struct ctl_io_hdr *io_hdr) 3628{ 3629 3630 return (control_softc->ctl_ports[io_hdr->nexus.targ_port]); 3631} 3632 3633int 3634ctl_ffz(uint32_t *mask, uint32_t first, uint32_t last) 3635{ 3636 int i; 3637 3638 for (i = first; i < last; i++) { 3639 if ((mask[i / 32] & (1 << (i % 32))) == 0) 3640 return (i); 3641 } 3642 return (-1); 3643} 3644 3645int 3646ctl_set_mask(uint32_t *mask, uint32_t bit) 3647{ 3648 uint32_t chunk, piece; 3649 3650 chunk = bit >> 5; 3651 piece = bit % (sizeof(uint32_t) * 8); 3652 3653 if ((mask[chunk] & (1 << piece)) != 0) 3654 return (-1); 3655 else 3656 mask[chunk] |= (1 << piece); 3657 3658 return (0); 3659} 3660 3661int 3662ctl_clear_mask(uint32_t *mask, uint32_t bit) 3663{ 3664 uint32_t chunk, piece; 3665 3666 chunk = bit >> 5; 3667 piece = bit % (sizeof(uint32_t) * 8); 3668 3669 if ((mask[chunk] & (1 << piece)) == 0) 3670 return (-1); 3671 else 3672 mask[chunk] &= ~(1 << piece); 3673 3674 return (0); 3675} 3676 3677int 3678ctl_is_set(uint32_t *mask, uint32_t bit) 3679{ 3680 uint32_t chunk, piece; 3681 3682 chunk = bit >> 5; 3683 piece = bit % (sizeof(uint32_t) * 8); 3684 3685 if ((mask[chunk] & (1 << piece)) == 0) 3686 return (0); 3687 else 3688 return (1); 3689} 3690 3691static uint64_t 3692ctl_get_prkey(struct ctl_lun *lun, uint32_t residx) 3693{ 3694 uint64_t *t; 3695 3696 t = lun->pr_keys[residx/CTL_MAX_INIT_PER_PORT]; 3697 if (t == NULL) 3698 return (0); 3699 return (t[residx % CTL_MAX_INIT_PER_PORT]); 3700} 3701 3702static void 3703ctl_clr_prkey(struct ctl_lun *lun, uint32_t residx) 3704{ 3705 uint64_t *t; 3706 3707 t = lun->pr_keys[residx/CTL_MAX_INIT_PER_PORT]; 3708 if (t == NULL) 3709 return; 3710 t[residx % CTL_MAX_INIT_PER_PORT] = 0; 3711} 3712 3713static void 3714ctl_alloc_prkey(struct ctl_lun *lun, uint32_t residx) 3715{ 3716 uint64_t *p; 3717 u_int i; 3718 3719 i = residx/CTL_MAX_INIT_PER_PORT; 3720 if (lun->pr_keys[i] != NULL) 3721 return; 3722 mtx_unlock(&lun->lun_lock); 3723 p = malloc(sizeof(uint64_t) * CTL_MAX_INIT_PER_PORT, M_CTL, 3724 M_WAITOK | M_ZERO); 3725 mtx_lock(&lun->lun_lock); 3726 if (lun->pr_keys[i] == NULL) 3727 lun->pr_keys[i] = p; 3728 else 3729 free(p, M_CTL); 3730} 3731 3732static void 3733ctl_set_prkey(struct ctl_lun *lun, uint32_t residx, uint64_t key) 3734{ 3735 uint64_t *t; 3736 3737 t = lun->pr_keys[residx/CTL_MAX_INIT_PER_PORT]; 3738 KASSERT(t != NULL, ("prkey %d is not allocated", residx)); 3739 t[residx % CTL_MAX_INIT_PER_PORT] = key; 3740} 3741 3742/* 3743 * ctl_softc, pool_name, total_ctl_io are passed in. 3744 * npool is passed out. 3745 */ 3746int 3747ctl_pool_create(struct ctl_softc *ctl_softc, const char *pool_name, 3748 uint32_t total_ctl_io, void **npool) 3749{ 3750#ifdef IO_POOLS 3751 struct ctl_io_pool *pool; 3752 3753 pool = (struct ctl_io_pool *)malloc(sizeof(*pool), M_CTL, 3754 M_NOWAIT | M_ZERO); 3755 if (pool == NULL) 3756 return (ENOMEM); 3757 3758 snprintf(pool->name, sizeof(pool->name), "CTL IO %s", pool_name); 3759 pool->ctl_softc = ctl_softc; 3760 pool->zone = uma_zsecond_create(pool->name, NULL, 3761 NULL, NULL, NULL, ctl_softc->io_zone); 3762 /* uma_prealloc(pool->zone, total_ctl_io); */ 3763 3764 *npool = pool; 3765#else 3766 *npool = ctl_softc->io_zone; 3767#endif 3768 return (0); 3769} 3770 3771void 3772ctl_pool_free(struct ctl_io_pool *pool) 3773{ 3774 3775 if (pool == NULL) 3776 return; 3777 3778#ifdef IO_POOLS 3779 uma_zdestroy(pool->zone); 3780 free(pool, M_CTL); 3781#endif 3782} 3783 3784union ctl_io * 3785ctl_alloc_io(void *pool_ref) 3786{ 3787 union ctl_io *io; 3788#ifdef IO_POOLS 3789 struct ctl_io_pool *pool = (struct ctl_io_pool *)pool_ref; 3790 3791 io = uma_zalloc(pool->zone, M_WAITOK); 3792#else 3793 io = uma_zalloc((uma_zone_t)pool_ref, M_WAITOK); 3794#endif 3795 if (io != NULL) 3796 io->io_hdr.pool = pool_ref; 3797 return (io); 3798} 3799 3800union ctl_io * 3801ctl_alloc_io_nowait(void *pool_ref) 3802{ 3803 union ctl_io *io; 3804#ifdef IO_POOLS 3805 struct ctl_io_pool *pool = (struct ctl_io_pool *)pool_ref; 3806 3807 io = uma_zalloc(pool->zone, M_NOWAIT); 3808#else 3809 io = uma_zalloc((uma_zone_t)pool_ref, M_NOWAIT); 3810#endif 3811 if (io != NULL) 3812 io->io_hdr.pool = pool_ref; 3813 return (io); 3814} 3815 3816void 3817ctl_free_io(union ctl_io *io) 3818{ 3819#ifdef IO_POOLS 3820 struct ctl_io_pool *pool; 3821#endif 3822 3823 if (io == NULL) 3824 return; 3825 3826#ifdef IO_POOLS 3827 pool = (struct ctl_io_pool *)io->io_hdr.pool; 3828 uma_zfree(pool->zone, io); 3829#else 3830 uma_zfree((uma_zone_t)io->io_hdr.pool, io); 3831#endif 3832} 3833 3834void 3835ctl_zero_io(union ctl_io *io) 3836{ 3837 void *pool_ref; 3838 3839 if (io == NULL) 3840 return; 3841 3842 /* 3843 * May need to preserve linked list pointers at some point too. 3844 */ 3845 pool_ref = io->io_hdr.pool; 3846 memset(io, 0, sizeof(*io)); 3847 io->io_hdr.pool = pool_ref; 3848} 3849 3850int 3851ctl_expand_number(const char *buf, uint64_t *num) 3852{ 3853 char *endptr; 3854 uint64_t number; 3855 unsigned shift; 3856 3857 number = strtoq(buf, &endptr, 0); 3858 3859 switch (tolower((unsigned char)*endptr)) { 3860 case 'e': 3861 shift = 60; 3862 break; 3863 case 'p': 3864 shift = 50; 3865 break; 3866 case 't': 3867 shift = 40; 3868 break; 3869 case 'g': 3870 shift = 30; 3871 break; 3872 case 'm': 3873 shift = 20; 3874 break; 3875 case 'k': 3876 shift = 10; 3877 break; 3878 case 'b': 3879 case '\0': /* No unit. */ 3880 *num = number; 3881 return (0); 3882 default: 3883 /* Unrecognized unit. */ 3884 return (-1); 3885 } 3886 3887 if ((number << shift) >> shift != number) { 3888 /* Overflow */ 3889 return (-1); 3890 } 3891 *num = number << shift; 3892 return (0); 3893} 3894 3895 3896/* 3897 * This routine could be used in the future to load default and/or saved 3898 * mode page parameters for a particuar lun. 3899 */ 3900static int 3901ctl_init_page_index(struct ctl_lun *lun) 3902{ 3903 int i, page_code; 3904 struct ctl_page_index *page_index; 3905 const char *value; 3906 uint64_t ival; 3907 3908 memcpy(&lun->mode_pages.index, page_index_template, 3909 sizeof(page_index_template)); 3910 3911 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 3912 3913 page_index = &lun->mode_pages.index[i]; 3914 if (lun->be_lun->lun_type == T_DIRECT && 3915 (page_index->page_flags & CTL_PAGE_FLAG_DIRECT) == 0) 3916 continue; 3917 if (lun->be_lun->lun_type == T_PROCESSOR && 3918 (page_index->page_flags & CTL_PAGE_FLAG_PROC) == 0) 3919 continue; 3920 if (lun->be_lun->lun_type == T_CDROM && 3921 (page_index->page_flags & CTL_PAGE_FLAG_CDROM) == 0) 3922 continue; 3923 3924 page_code = page_index->page_code & SMPH_PC_MASK; 3925 switch (page_code) { 3926 case SMS_RW_ERROR_RECOVERY_PAGE: { 3927 KASSERT(page_index->subpage == SMS_SUBPAGE_PAGE_0, 3928 ("subpage %#x for page %#x is incorrect!", 3929 page_index->subpage, page_code)); 3930 memcpy(&lun->mode_pages.rw_er_page[CTL_PAGE_CURRENT], 3931 &rw_er_page_default, 3932 sizeof(rw_er_page_default)); 3933 memcpy(&lun->mode_pages.rw_er_page[CTL_PAGE_CHANGEABLE], 3934 &rw_er_page_changeable, 3935 sizeof(rw_er_page_changeable)); 3936 memcpy(&lun->mode_pages.rw_er_page[CTL_PAGE_DEFAULT], 3937 &rw_er_page_default, 3938 sizeof(rw_er_page_default)); 3939 memcpy(&lun->mode_pages.rw_er_page[CTL_PAGE_SAVED], 3940 &rw_er_page_default, 3941 sizeof(rw_er_page_default)); 3942 page_index->page_data = 3943 (uint8_t *)lun->mode_pages.rw_er_page; 3944 break; 3945 } 3946 case SMS_FORMAT_DEVICE_PAGE: { 3947 struct scsi_format_page *format_page; 3948 3949 KASSERT(page_index->subpage == SMS_SUBPAGE_PAGE_0, 3950 ("subpage %#x for page %#x is incorrect!", 3951 page_index->subpage, page_code)); 3952 3953 /* 3954 * Sectors per track are set above. Bytes per 3955 * sector need to be set here on a per-LUN basis. 3956 */ 3957 memcpy(&lun->mode_pages.format_page[CTL_PAGE_CURRENT], 3958 &format_page_default, 3959 sizeof(format_page_default)); 3960 memcpy(&lun->mode_pages.format_page[ 3961 CTL_PAGE_CHANGEABLE], &format_page_changeable, 3962 sizeof(format_page_changeable)); 3963 memcpy(&lun->mode_pages.format_page[CTL_PAGE_DEFAULT], 3964 &format_page_default, 3965 sizeof(format_page_default)); 3966 memcpy(&lun->mode_pages.format_page[CTL_PAGE_SAVED], 3967 &format_page_default, 3968 sizeof(format_page_default)); 3969 3970 format_page = &lun->mode_pages.format_page[ 3971 CTL_PAGE_CURRENT]; 3972 scsi_ulto2b(lun->be_lun->blocksize, 3973 format_page->bytes_per_sector); 3974 3975 format_page = &lun->mode_pages.format_page[ 3976 CTL_PAGE_DEFAULT]; 3977 scsi_ulto2b(lun->be_lun->blocksize, 3978 format_page->bytes_per_sector); 3979 3980 format_page = &lun->mode_pages.format_page[ 3981 CTL_PAGE_SAVED]; 3982 scsi_ulto2b(lun->be_lun->blocksize, 3983 format_page->bytes_per_sector); 3984 3985 page_index->page_data = 3986 (uint8_t *)lun->mode_pages.format_page; 3987 break; 3988 } 3989 case SMS_RIGID_DISK_PAGE: { 3990 struct scsi_rigid_disk_page *rigid_disk_page; 3991 uint32_t sectors_per_cylinder; 3992 uint64_t cylinders; 3993#ifndef __XSCALE__ 3994 int shift; 3995#endif /* !__XSCALE__ */ 3996 3997 KASSERT(page_index->subpage == SMS_SUBPAGE_PAGE_0, 3998 ("subpage %#x for page %#x is incorrect!", 3999 page_index->subpage, page_code)); 4000 4001 /* 4002 * Rotation rate and sectors per track are set 4003 * above. We calculate the cylinders here based on 4004 * capacity. Due to the number of heads and 4005 * sectors per track we're using, smaller arrays 4006 * may turn out to have 0 cylinders. Linux and 4007 * FreeBSD don't pay attention to these mode pages 4008 * to figure out capacity, but Solaris does. It 4009 * seems to deal with 0 cylinders just fine, and 4010 * works out a fake geometry based on the capacity. 4011 */ 4012 memcpy(&lun->mode_pages.rigid_disk_page[ 4013 CTL_PAGE_DEFAULT], &rigid_disk_page_default, 4014 sizeof(rigid_disk_page_default)); 4015 memcpy(&lun->mode_pages.rigid_disk_page[ 4016 CTL_PAGE_CHANGEABLE],&rigid_disk_page_changeable, 4017 sizeof(rigid_disk_page_changeable)); 4018 4019 sectors_per_cylinder = CTL_DEFAULT_SECTORS_PER_TRACK * 4020 CTL_DEFAULT_HEADS; 4021 4022 /* 4023 * The divide method here will be more accurate, 4024 * probably, but results in floating point being 4025 * used in the kernel on i386 (__udivdi3()). On the 4026 * XScale, though, __udivdi3() is implemented in 4027 * software. 4028 * 4029 * The shift method for cylinder calculation is 4030 * accurate if sectors_per_cylinder is a power of 4031 * 2. Otherwise it might be slightly off -- you 4032 * might have a bit of a truncation problem. 4033 */ 4034#ifdef __XSCALE__ 4035 cylinders = (lun->be_lun->maxlba + 1) / 4036 sectors_per_cylinder; 4037#else 4038 for (shift = 31; shift > 0; shift--) { 4039 if (sectors_per_cylinder & (1 << shift)) 4040 break; 4041 } 4042 cylinders = (lun->be_lun->maxlba + 1) >> shift; 4043#endif 4044 4045 /* 4046 * We've basically got 3 bytes, or 24 bits for the 4047 * cylinder size in the mode page. If we're over, 4048 * just round down to 2^24. 4049 */ 4050 if (cylinders > 0xffffff) 4051 cylinders = 0xffffff; 4052 4053 rigid_disk_page = &lun->mode_pages.rigid_disk_page[ 4054 CTL_PAGE_DEFAULT]; 4055 scsi_ulto3b(cylinders, rigid_disk_page->cylinders); 4056 4057 if ((value = ctl_get_opt(&lun->be_lun->options, 4058 "rpm")) != NULL) { 4059 scsi_ulto2b(strtol(value, NULL, 0), 4060 rigid_disk_page->rotation_rate); 4061 } 4062 4063 memcpy(&lun->mode_pages.rigid_disk_page[CTL_PAGE_CURRENT], 4064 &lun->mode_pages.rigid_disk_page[CTL_PAGE_DEFAULT], 4065 sizeof(rigid_disk_page_default)); 4066 memcpy(&lun->mode_pages.rigid_disk_page[CTL_PAGE_SAVED], 4067 &lun->mode_pages.rigid_disk_page[CTL_PAGE_DEFAULT], 4068 sizeof(rigid_disk_page_default)); 4069 4070 page_index->page_data = 4071 (uint8_t *)lun->mode_pages.rigid_disk_page; 4072 break; 4073 } 4074 case SMS_VERIFY_ERROR_RECOVERY_PAGE: { 4075 KASSERT(page_index->subpage == SMS_SUBPAGE_PAGE_0, 4076 ("subpage %#x for page %#x is incorrect!", 4077 page_index->subpage, page_code)); 4078 memcpy(&lun->mode_pages.verify_er_page[CTL_PAGE_CURRENT], 4079 &verify_er_page_default, 4080 sizeof(verify_er_page_default)); 4081 memcpy(&lun->mode_pages.verify_er_page[CTL_PAGE_CHANGEABLE], 4082 &verify_er_page_changeable, 4083 sizeof(verify_er_page_changeable)); 4084 memcpy(&lun->mode_pages.verify_er_page[CTL_PAGE_DEFAULT], 4085 &verify_er_page_default, 4086 sizeof(verify_er_page_default)); 4087 memcpy(&lun->mode_pages.verify_er_page[CTL_PAGE_SAVED], 4088 &verify_er_page_default, 4089 sizeof(verify_er_page_default)); 4090 page_index->page_data = 4091 (uint8_t *)lun->mode_pages.verify_er_page; 4092 break; 4093 } 4094 case SMS_CACHING_PAGE: { 4095 struct scsi_caching_page *caching_page; 4096 4097 KASSERT(page_index->subpage == SMS_SUBPAGE_PAGE_0, 4098 ("subpage %#x for page %#x is incorrect!", 4099 page_index->subpage, page_code)); 4100 memcpy(&lun->mode_pages.caching_page[CTL_PAGE_DEFAULT], 4101 &caching_page_default, 4102 sizeof(caching_page_default)); 4103 memcpy(&lun->mode_pages.caching_page[ 4104 CTL_PAGE_CHANGEABLE], &caching_page_changeable, 4105 sizeof(caching_page_changeable)); 4106 memcpy(&lun->mode_pages.caching_page[CTL_PAGE_SAVED], 4107 &caching_page_default, 4108 sizeof(caching_page_default)); 4109 caching_page = &lun->mode_pages.caching_page[ 4110 CTL_PAGE_SAVED]; 4111 value = ctl_get_opt(&lun->be_lun->options, "writecache"); 4112 if (value != NULL && strcmp(value, "off") == 0) 4113 caching_page->flags1 &= ~SCP_WCE; 4114 value = ctl_get_opt(&lun->be_lun->options, "readcache"); 4115 if (value != NULL && strcmp(value, "off") == 0) 4116 caching_page->flags1 |= SCP_RCD; 4117 memcpy(&lun->mode_pages.caching_page[CTL_PAGE_CURRENT], 4118 &lun->mode_pages.caching_page[CTL_PAGE_SAVED], 4119 sizeof(caching_page_default)); 4120 page_index->page_data = 4121 (uint8_t *)lun->mode_pages.caching_page; 4122 break; 4123 } 4124 case SMS_CONTROL_MODE_PAGE: { 4125 switch (page_index->subpage) { 4126 case SMS_SUBPAGE_PAGE_0: { 4127 struct scsi_control_page *control_page; 4128 4129 memcpy(&lun->mode_pages.control_page[ 4130 CTL_PAGE_DEFAULT], 4131 &control_page_default, 4132 sizeof(control_page_default)); 4133 memcpy(&lun->mode_pages.control_page[ 4134 CTL_PAGE_CHANGEABLE], 4135 &control_page_changeable, 4136 sizeof(control_page_changeable)); 4137 memcpy(&lun->mode_pages.control_page[ 4138 CTL_PAGE_SAVED], 4139 &control_page_default, 4140 sizeof(control_page_default)); 4141 control_page = &lun->mode_pages.control_page[ 4142 CTL_PAGE_SAVED]; 4143 value = ctl_get_opt(&lun->be_lun->options, 4144 "reordering"); 4145 if (value != NULL && 4146 strcmp(value, "unrestricted") == 0) { 4147 control_page->queue_flags &= 4148 ~SCP_QUEUE_ALG_MASK; 4149 control_page->queue_flags |= 4150 SCP_QUEUE_ALG_UNRESTRICTED; 4151 } 4152 memcpy(&lun->mode_pages.control_page[ 4153 CTL_PAGE_CURRENT], 4154 &lun->mode_pages.control_page[ 4155 CTL_PAGE_SAVED], 4156 sizeof(control_page_default)); 4157 page_index->page_data = 4158 (uint8_t *)lun->mode_pages.control_page; 4159 break; 4160 } 4161 case 0x01: 4162 memcpy(&lun->mode_pages.control_ext_page[ 4163 CTL_PAGE_DEFAULT], 4164 &control_ext_page_default, 4165 sizeof(control_ext_page_default)); 4166 memcpy(&lun->mode_pages.control_ext_page[ 4167 CTL_PAGE_CHANGEABLE], 4168 &control_ext_page_changeable, 4169 sizeof(control_ext_page_changeable)); 4170 memcpy(&lun->mode_pages.control_ext_page[ 4171 CTL_PAGE_SAVED], 4172 &control_ext_page_default, 4173 sizeof(control_ext_page_default)); 4174 memcpy(&lun->mode_pages.control_ext_page[ 4175 CTL_PAGE_CURRENT], 4176 &lun->mode_pages.control_ext_page[ 4177 CTL_PAGE_SAVED], 4178 sizeof(control_ext_page_default)); 4179 page_index->page_data = 4180 (uint8_t *)lun->mode_pages.control_ext_page; 4181 break; 4182 default: 4183 panic("subpage %#x for page %#x is incorrect!", 4184 page_index->subpage, page_code); 4185 } 4186 break; 4187 } 4188 case SMS_INFO_EXCEPTIONS_PAGE: { 4189 switch (page_index->subpage) { 4190 case SMS_SUBPAGE_PAGE_0: 4191 memcpy(&lun->mode_pages.ie_page[CTL_PAGE_CURRENT], 4192 &ie_page_default, 4193 sizeof(ie_page_default)); 4194 memcpy(&lun->mode_pages.ie_page[ 4195 CTL_PAGE_CHANGEABLE], &ie_page_changeable, 4196 sizeof(ie_page_changeable)); 4197 memcpy(&lun->mode_pages.ie_page[CTL_PAGE_DEFAULT], 4198 &ie_page_default, 4199 sizeof(ie_page_default)); 4200 memcpy(&lun->mode_pages.ie_page[CTL_PAGE_SAVED], 4201 &ie_page_default, 4202 sizeof(ie_page_default)); 4203 page_index->page_data = 4204 (uint8_t *)lun->mode_pages.ie_page; 4205 break; 4206 case 0x02: { 4207 struct ctl_logical_block_provisioning_page *page; 4208 4209 memcpy(&lun->mode_pages.lbp_page[CTL_PAGE_DEFAULT], 4210 &lbp_page_default, 4211 sizeof(lbp_page_default)); 4212 memcpy(&lun->mode_pages.lbp_page[ 4213 CTL_PAGE_CHANGEABLE], &lbp_page_changeable, 4214 sizeof(lbp_page_changeable)); 4215 memcpy(&lun->mode_pages.lbp_page[CTL_PAGE_SAVED], 4216 &lbp_page_default, 4217 sizeof(lbp_page_default)); 4218 page = &lun->mode_pages.lbp_page[CTL_PAGE_SAVED]; 4219 value = ctl_get_opt(&lun->be_lun->options, 4220 "avail-threshold"); 4221 if (value != NULL && 4222 ctl_expand_number(value, &ival) == 0) { 4223 page->descr[0].flags |= SLBPPD_ENABLED | 4224 SLBPPD_ARMING_DEC; 4225 if (lun->be_lun->blocksize) 4226 ival /= lun->be_lun->blocksize; 4227 else 4228 ival /= 512; 4229 scsi_ulto4b(ival >> CTL_LBP_EXPONENT, 4230 page->descr[0].count); 4231 } 4232 value = ctl_get_opt(&lun->be_lun->options, 4233 "used-threshold"); 4234 if (value != NULL && 4235 ctl_expand_number(value, &ival) == 0) { 4236 page->descr[1].flags |= SLBPPD_ENABLED | 4237 SLBPPD_ARMING_INC; 4238 if (lun->be_lun->blocksize) 4239 ival /= lun->be_lun->blocksize; 4240 else 4241 ival /= 512; 4242 scsi_ulto4b(ival >> CTL_LBP_EXPONENT, 4243 page->descr[1].count); 4244 } 4245 value = ctl_get_opt(&lun->be_lun->options, 4246 "pool-avail-threshold"); 4247 if (value != NULL && 4248 ctl_expand_number(value, &ival) == 0) { 4249 page->descr[2].flags |= SLBPPD_ENABLED | 4250 SLBPPD_ARMING_DEC; 4251 if (lun->be_lun->blocksize) 4252 ival /= lun->be_lun->blocksize; 4253 else 4254 ival /= 512; 4255 scsi_ulto4b(ival >> CTL_LBP_EXPONENT, 4256 page->descr[2].count); 4257 } 4258 value = ctl_get_opt(&lun->be_lun->options, 4259 "pool-used-threshold"); 4260 if (value != NULL && 4261 ctl_expand_number(value, &ival) == 0) { 4262 page->descr[3].flags |= SLBPPD_ENABLED | 4263 SLBPPD_ARMING_INC; 4264 if (lun->be_lun->blocksize) 4265 ival /= lun->be_lun->blocksize; 4266 else 4267 ival /= 512; 4268 scsi_ulto4b(ival >> CTL_LBP_EXPONENT, 4269 page->descr[3].count); 4270 } 4271 memcpy(&lun->mode_pages.lbp_page[CTL_PAGE_CURRENT], 4272 &lun->mode_pages.lbp_page[CTL_PAGE_SAVED], 4273 sizeof(lbp_page_default)); 4274 page_index->page_data = 4275 (uint8_t *)lun->mode_pages.lbp_page; 4276 break; 4277 } 4278 default: 4279 panic("subpage %#x for page %#x is incorrect!", 4280 page_index->subpage, page_code); 4281 } 4282 break; 4283 } 4284 case SMS_CDDVD_CAPS_PAGE:{ 4285 KASSERT(page_index->subpage == SMS_SUBPAGE_PAGE_0, 4286 ("subpage %#x for page %#x is incorrect!", 4287 page_index->subpage, page_code)); 4288 memcpy(&lun->mode_pages.cddvd_page[CTL_PAGE_DEFAULT], 4289 &cddvd_page_default, 4290 sizeof(cddvd_page_default)); 4291 memcpy(&lun->mode_pages.cddvd_page[ 4292 CTL_PAGE_CHANGEABLE], &cddvd_page_changeable, 4293 sizeof(cddvd_page_changeable)); 4294 memcpy(&lun->mode_pages.cddvd_page[CTL_PAGE_SAVED], 4295 &cddvd_page_default, 4296 sizeof(cddvd_page_default)); 4297 memcpy(&lun->mode_pages.cddvd_page[CTL_PAGE_CURRENT], 4298 &lun->mode_pages.cddvd_page[CTL_PAGE_SAVED], 4299 sizeof(cddvd_page_default)); 4300 page_index->page_data = 4301 (uint8_t *)lun->mode_pages.cddvd_page; 4302 break; 4303 } 4304 default: 4305 panic("invalid page code value %#x", page_code); 4306 } 4307 } 4308 4309 return (CTL_RETVAL_COMPLETE); 4310} 4311 4312static int 4313ctl_init_log_page_index(struct ctl_lun *lun) 4314{ 4315 struct ctl_page_index *page_index; 4316 int i, j, k, prev; 4317 4318 memcpy(&lun->log_pages.index, log_page_index_template, 4319 sizeof(log_page_index_template)); 4320 4321 prev = -1; 4322 for (i = 0, j = 0, k = 0; i < CTL_NUM_LOG_PAGES; i++) { 4323 4324 page_index = &lun->log_pages.index[i]; 4325 if (lun->be_lun->lun_type == T_DIRECT && 4326 (page_index->page_flags & CTL_PAGE_FLAG_DIRECT) == 0) 4327 continue; 4328 if (lun->be_lun->lun_type == T_PROCESSOR && 4329 (page_index->page_flags & CTL_PAGE_FLAG_PROC) == 0) 4330 continue; 4331 if (lun->be_lun->lun_type == T_CDROM && 4332 (page_index->page_flags & CTL_PAGE_FLAG_CDROM) == 0) 4333 continue; 4334 4335 if (page_index->page_code == SLS_LOGICAL_BLOCK_PROVISIONING && 4336 lun->backend->lun_attr == NULL) 4337 continue; 4338 4339 if (page_index->page_code != prev) { 4340 lun->log_pages.pages_page[j] = page_index->page_code; 4341 prev = page_index->page_code; 4342 j++; 4343 } 4344 lun->log_pages.subpages_page[k*2] = page_index->page_code; 4345 lun->log_pages.subpages_page[k*2+1] = page_index->subpage; 4346 k++; 4347 } 4348 lun->log_pages.index[0].page_data = &lun->log_pages.pages_page[0]; 4349 lun->log_pages.index[0].page_len = j; 4350 lun->log_pages.index[1].page_data = &lun->log_pages.subpages_page[0]; 4351 lun->log_pages.index[1].page_len = k * 2; 4352 lun->log_pages.index[2].page_data = &lun->log_pages.lbp_page[0]; 4353 lun->log_pages.index[2].page_len = 12*CTL_NUM_LBP_PARAMS; 4354 lun->log_pages.index[3].page_data = (uint8_t *)&lun->log_pages.stat_page; 4355 lun->log_pages.index[3].page_len = sizeof(lun->log_pages.stat_page); 4356 lun->log_pages.index[4].page_data = (uint8_t *)&lun->log_pages.ie_page; 4357 lun->log_pages.index[4].page_len = sizeof(lun->log_pages.ie_page); 4358 4359 return (CTL_RETVAL_COMPLETE); 4360} 4361 4362static int 4363hex2bin(const char *str, uint8_t *buf, int buf_size) 4364{ 4365 int i; 4366 u_char c; 4367 4368 memset(buf, 0, buf_size); 4369 while (isspace(str[0])) 4370 str++; 4371 if (str[0] == '0' && (str[1] == 'x' || str[1] == 'X')) 4372 str += 2; 4373 buf_size *= 2; 4374 for (i = 0; str[i] != 0 && i < buf_size; i++) { 4375 while (str[i] == '-') /* Skip dashes in UUIDs. */ 4376 str++; 4377 c = str[i]; 4378 if (isdigit(c)) 4379 c -= '0'; 4380 else if (isalpha(c)) 4381 c -= isupper(c) ? 'A' - 10 : 'a' - 10; 4382 else 4383 break; 4384 if (c >= 16) 4385 break; 4386 if ((i & 1) == 0) 4387 buf[i / 2] |= (c << 4); 4388 else 4389 buf[i / 2] |= c; 4390 } 4391 return ((i + 1) / 2); 4392} 4393 4394/* 4395 * LUN allocation. 4396 * 4397 * Requirements: 4398 * - caller allocates and zeros LUN storage, or passes in a NULL LUN if he 4399 * wants us to allocate the LUN and he can block. 4400 * - ctl_softc is always set 4401 * - be_lun is set if the LUN has a backend (needed for disk LUNs) 4402 * 4403 * Returns 0 for success, non-zero (errno) for failure. 4404 */ 4405static int 4406ctl_alloc_lun(struct ctl_softc *ctl_softc, struct ctl_lun *ctl_lun, 4407 struct ctl_be_lun *const be_lun) 4408{ 4409 struct ctl_lun *nlun, *lun; 4410 struct scsi_vpd_id_descriptor *desc; 4411 struct scsi_vpd_id_t10 *t10id; 4412 const char *eui, *naa, *scsiname, *uuid, *vendor, *value; 4413 int lun_number, i, lun_malloced; 4414 int devidlen, idlen1, idlen2 = 0, len; 4415 4416 if (be_lun == NULL) 4417 return (EINVAL); 4418 4419 /* 4420 * We currently only support Direct Access or Processor LUN types. 4421 */ 4422 switch (be_lun->lun_type) { 4423 case T_DIRECT: 4424 case T_PROCESSOR: 4425 case T_CDROM: 4426 break; 4427 case T_SEQUENTIAL: 4428 case T_CHANGER: 4429 default: 4430 be_lun->lun_config_status(be_lun->be_lun, 4431 CTL_LUN_CONFIG_FAILURE); 4432 break; 4433 } 4434 if (ctl_lun == NULL) { 4435 lun = malloc(sizeof(*lun), M_CTL, M_WAITOK); 4436 lun_malloced = 1; 4437 } else { 4438 lun_malloced = 0; 4439 lun = ctl_lun; 4440 } 4441 4442 memset(lun, 0, sizeof(*lun)); 4443 if (lun_malloced) 4444 lun->flags = CTL_LUN_MALLOCED; 4445 4446 /* Generate LUN ID. */ 4447 devidlen = max(CTL_DEVID_MIN_LEN, 4448 strnlen(be_lun->device_id, CTL_DEVID_LEN)); 4449 idlen1 = sizeof(*t10id) + devidlen; 4450 len = sizeof(struct scsi_vpd_id_descriptor) + idlen1; 4451 scsiname = ctl_get_opt(&be_lun->options, "scsiname"); 4452 if (scsiname != NULL) { 4453 idlen2 = roundup2(strlen(scsiname) + 1, 4); 4454 len += sizeof(struct scsi_vpd_id_descriptor) + idlen2; 4455 } 4456 eui = ctl_get_opt(&be_lun->options, "eui"); 4457 if (eui != NULL) { 4458 len += sizeof(struct scsi_vpd_id_descriptor) + 16; 4459 } 4460 naa = ctl_get_opt(&be_lun->options, "naa"); 4461 if (naa != NULL) { 4462 len += sizeof(struct scsi_vpd_id_descriptor) + 16; 4463 } 4464 uuid = ctl_get_opt(&be_lun->options, "uuid"); 4465 if (uuid != NULL) { 4466 len += sizeof(struct scsi_vpd_id_descriptor) + 18; 4467 } 4468 lun->lun_devid = malloc(sizeof(struct ctl_devid) + len, 4469 M_CTL, M_WAITOK | M_ZERO); 4470 desc = (struct scsi_vpd_id_descriptor *)lun->lun_devid->data; 4471 desc->proto_codeset = SVPD_ID_CODESET_ASCII; 4472 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | SVPD_ID_TYPE_T10; 4473 desc->length = idlen1; 4474 t10id = (struct scsi_vpd_id_t10 *)&desc->identifier[0]; 4475 memset(t10id->vendor, ' ', sizeof(t10id->vendor)); 4476 if ((vendor = ctl_get_opt(&be_lun->options, "vendor")) == NULL) { 4477 strncpy((char *)t10id->vendor, CTL_VENDOR, sizeof(t10id->vendor)); 4478 } else { 4479 strncpy(t10id->vendor, vendor, 4480 min(sizeof(t10id->vendor), strlen(vendor))); 4481 } 4482 strncpy((char *)t10id->vendor_spec_id, 4483 (char *)be_lun->device_id, devidlen); 4484 if (scsiname != NULL) { 4485 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 4486 desc->length); 4487 desc->proto_codeset = SVPD_ID_CODESET_UTF8; 4488 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | 4489 SVPD_ID_TYPE_SCSI_NAME; 4490 desc->length = idlen2; 4491 strlcpy(desc->identifier, scsiname, idlen2); 4492 } 4493 if (eui != NULL) { 4494 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 4495 desc->length); 4496 desc->proto_codeset = SVPD_ID_CODESET_BINARY; 4497 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | 4498 SVPD_ID_TYPE_EUI64; 4499 desc->length = hex2bin(eui, desc->identifier, 16); 4500 desc->length = desc->length > 12 ? 16 : 4501 (desc->length > 8 ? 12 : 8); 4502 len -= 16 - desc->length; 4503 } 4504 if (naa != NULL) { 4505 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 4506 desc->length); 4507 desc->proto_codeset = SVPD_ID_CODESET_BINARY; 4508 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | 4509 SVPD_ID_TYPE_NAA; 4510 desc->length = hex2bin(naa, desc->identifier, 16); 4511 desc->length = desc->length > 8 ? 16 : 8; 4512 len -= 16 - desc->length; 4513 } 4514 if (uuid != NULL) { 4515 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 4516 desc->length); 4517 desc->proto_codeset = SVPD_ID_CODESET_BINARY; 4518 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | 4519 SVPD_ID_TYPE_UUID; 4520 desc->identifier[0] = 0x10; 4521 hex2bin(uuid, &desc->identifier[2], 16); 4522 desc->length = 18; 4523 } 4524 lun->lun_devid->len = len; 4525 4526 mtx_lock(&ctl_softc->ctl_lock); 4527 /* 4528 * See if the caller requested a particular LUN number. If so, see 4529 * if it is available. Otherwise, allocate the first available LUN. 4530 */ 4531 if (be_lun->flags & CTL_LUN_FLAG_ID_REQ) { 4532 if ((be_lun->req_lun_id > (CTL_MAX_LUNS - 1)) 4533 || (ctl_is_set(ctl_softc->ctl_lun_mask, be_lun->req_lun_id))) { 4534 mtx_unlock(&ctl_softc->ctl_lock); 4535 if (be_lun->req_lun_id > (CTL_MAX_LUNS - 1)) { 4536 printf("ctl: requested LUN ID %d is higher " 4537 "than CTL_MAX_LUNS - 1 (%d)\n", 4538 be_lun->req_lun_id, CTL_MAX_LUNS - 1); 4539 } else { 4540 /* 4541 * XXX KDM return an error, or just assign 4542 * another LUN ID in this case?? 4543 */ 4544 printf("ctl: requested LUN ID %d is already " 4545 "in use\n", be_lun->req_lun_id); 4546 } 4547 if (lun->flags & CTL_LUN_MALLOCED) 4548 free(lun, M_CTL); 4549 be_lun->lun_config_status(be_lun->be_lun, 4550 CTL_LUN_CONFIG_FAILURE); 4551 return (ENOSPC); 4552 } 4553 lun_number = be_lun->req_lun_id; 4554 } else { 4555 lun_number = ctl_ffz(ctl_softc->ctl_lun_mask, 0, CTL_MAX_LUNS); 4556 if (lun_number == -1) { 4557 mtx_unlock(&ctl_softc->ctl_lock); 4558 printf("ctl: can't allocate LUN, out of LUNs\n"); 4559 if (lun->flags & CTL_LUN_MALLOCED) 4560 free(lun, M_CTL); 4561 be_lun->lun_config_status(be_lun->be_lun, 4562 CTL_LUN_CONFIG_FAILURE); 4563 return (ENOSPC); 4564 } 4565 } 4566 ctl_set_mask(ctl_softc->ctl_lun_mask, lun_number); 4567 4568 mtx_init(&lun->lun_lock, "CTL LUN", NULL, MTX_DEF); 4569 lun->lun = lun_number; 4570 lun->be_lun = be_lun; 4571 /* 4572 * The processor LUN is always enabled. Disk LUNs come on line 4573 * disabled, and must be enabled by the backend. 4574 */ 4575 lun->flags |= CTL_LUN_DISABLED; 4576 lun->backend = be_lun->be; 4577 be_lun->ctl_lun = lun; 4578 be_lun->lun_id = lun_number; 4579 atomic_add_int(&be_lun->be->num_luns, 1); 4580 if (be_lun->flags & CTL_LUN_FLAG_EJECTED) 4581 lun->flags |= CTL_LUN_EJECTED; 4582 if (be_lun->flags & CTL_LUN_FLAG_NO_MEDIA) 4583 lun->flags |= CTL_LUN_NO_MEDIA; 4584 if (be_lun->flags & CTL_LUN_FLAG_STOPPED) 4585 lun->flags |= CTL_LUN_STOPPED; 4586 4587 if (be_lun->flags & CTL_LUN_FLAG_PRIMARY) 4588 lun->flags |= CTL_LUN_PRIMARY_SC; 4589 4590 value = ctl_get_opt(&be_lun->options, "removable"); 4591 if (value != NULL) { 4592 if (strcmp(value, "on") == 0) 4593 lun->flags |= CTL_LUN_REMOVABLE; 4594 } else if (be_lun->lun_type == T_CDROM) 4595 lun->flags |= CTL_LUN_REMOVABLE; 4596 4597 lun->ctl_softc = ctl_softc; 4598#ifdef CTL_TIME_IO 4599 lun->last_busy = getsbinuptime(); 4600#endif 4601 TAILQ_INIT(&lun->ooa_queue); 4602 TAILQ_INIT(&lun->blocked_queue); 4603 STAILQ_INIT(&lun->error_list); 4604 lun->ie_reported = 1; 4605 callout_init_mtx(&lun->ie_callout, &lun->lun_lock, 0); 4606 ctl_tpc_lun_init(lun); 4607 4608 /* 4609 * Initialize the mode and log page index. 4610 */ 4611 ctl_init_page_index(lun); 4612 ctl_init_log_page_index(lun); 4613 4614 /* 4615 * Now, before we insert this lun on the lun list, set the lun 4616 * inventory changed UA for all other luns. 4617 */ 4618 STAILQ_FOREACH(nlun, &ctl_softc->lun_list, links) { 4619 mtx_lock(&nlun->lun_lock); 4620 ctl_est_ua_all(nlun, -1, CTL_UA_LUN_CHANGE); 4621 mtx_unlock(&nlun->lun_lock); 4622 } 4623 4624 STAILQ_INSERT_TAIL(&ctl_softc->lun_list, lun, links); 4625 4626 ctl_softc->ctl_luns[lun_number] = lun; 4627 4628 ctl_softc->num_luns++; 4629 4630 /* Setup statistics gathering */ 4631 lun->stats.device_type = be_lun->lun_type; 4632 lun->stats.lun_number = lun_number; 4633 lun->stats.blocksize = be_lun->blocksize; 4634 if (be_lun->blocksize == 0) 4635 lun->stats.flags = CTL_LUN_STATS_NO_BLOCKSIZE; 4636 for (i = 0;i < CTL_MAX_PORTS;i++) 4637 lun->stats.ports[i].targ_port = i; 4638 4639 mtx_unlock(&ctl_softc->ctl_lock); 4640 4641 lun->be_lun->lun_config_status(lun->be_lun->be_lun, CTL_LUN_CONFIG_OK); 4642 return (0); 4643} 4644 4645/* 4646 * Delete a LUN. 4647 * Assumptions: 4648 * - LUN has already been marked invalid and any pending I/O has been taken 4649 * care of. 4650 */ 4651static int 4652ctl_free_lun(struct ctl_lun *lun) 4653{ 4654 struct ctl_softc *softc; 4655 struct ctl_lun *nlun; 4656 int i; 4657 4658 softc = lun->ctl_softc; 4659 4660 mtx_assert(&softc->ctl_lock, MA_OWNED); 4661 4662 STAILQ_REMOVE(&softc->lun_list, lun, ctl_lun, links); 4663 4664 ctl_clear_mask(softc->ctl_lun_mask, lun->lun); 4665 4666 softc->ctl_luns[lun->lun] = NULL; 4667 4668 if (!TAILQ_EMPTY(&lun->ooa_queue)) 4669 panic("Freeing a LUN %p with outstanding I/O!!\n", lun); 4670 4671 softc->num_luns--; 4672 4673 /* 4674 * Tell the backend to free resources, if this LUN has a backend. 4675 */ 4676 atomic_subtract_int(&lun->be_lun->be->num_luns, 1); 4677 lun->be_lun->lun_shutdown(lun->be_lun->be_lun); 4678 4679 lun->ie_reportcnt = UINT32_MAX; 4680 callout_drain(&lun->ie_callout); 4681 4682 ctl_tpc_lun_shutdown(lun); 4683 mtx_destroy(&lun->lun_lock); 4684 free(lun->lun_devid, M_CTL); 4685 for (i = 0; i < CTL_MAX_PORTS; i++) 4686 free(lun->pending_ua[i], M_CTL); 4687 for (i = 0; i < CTL_MAX_PORTS; i++) 4688 free(lun->pr_keys[i], M_CTL); 4689 free(lun->write_buffer, M_CTL); 4690 if (lun->flags & CTL_LUN_MALLOCED) 4691 free(lun, M_CTL); 4692 4693 STAILQ_FOREACH(nlun, &softc->lun_list, links) { 4694 mtx_lock(&nlun->lun_lock); 4695 ctl_est_ua_all(nlun, -1, CTL_UA_LUN_CHANGE); 4696 mtx_unlock(&nlun->lun_lock); 4697 } 4698 4699 return (0); 4700} 4701 4702static void 4703ctl_create_lun(struct ctl_be_lun *be_lun) 4704{ 4705 4706 /* 4707 * ctl_alloc_lun() should handle all potential failure cases. 4708 */ 4709 ctl_alloc_lun(control_softc, NULL, be_lun); 4710} 4711 4712int 4713ctl_add_lun(struct ctl_be_lun *be_lun) 4714{ 4715 struct ctl_softc *softc = control_softc; 4716 4717 mtx_lock(&softc->ctl_lock); 4718 STAILQ_INSERT_TAIL(&softc->pending_lun_queue, be_lun, links); 4719 mtx_unlock(&softc->ctl_lock); 4720 wakeup(&softc->pending_lun_queue); 4721 4722 return (0); 4723} 4724 4725int 4726ctl_enable_lun(struct ctl_be_lun *be_lun) 4727{ 4728 struct ctl_softc *softc; 4729 struct ctl_port *port, *nport; 4730 struct ctl_lun *lun; 4731 int retval; 4732 4733 lun = (struct ctl_lun *)be_lun->ctl_lun; 4734 softc = lun->ctl_softc; 4735 4736 mtx_lock(&softc->ctl_lock); 4737 mtx_lock(&lun->lun_lock); 4738 if ((lun->flags & CTL_LUN_DISABLED) == 0) { 4739 /* 4740 * eh? Why did we get called if the LUN is already 4741 * enabled? 4742 */ 4743 mtx_unlock(&lun->lun_lock); 4744 mtx_unlock(&softc->ctl_lock); 4745 return (0); 4746 } 4747 lun->flags &= ~CTL_LUN_DISABLED; 4748 mtx_unlock(&lun->lun_lock); 4749 4750 STAILQ_FOREACH_SAFE(port, &softc->port_list, links, nport) { 4751 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0 || 4752 port->lun_map != NULL || port->lun_enable == NULL) 4753 continue; 4754 4755 /* 4756 * Drop the lock while we call the FETD's enable routine. 4757 * This can lead to a callback into CTL (at least in the 4758 * case of the internal initiator frontend. 4759 */ 4760 mtx_unlock(&softc->ctl_lock); 4761 retval = port->lun_enable(port->targ_lun_arg, lun->lun); 4762 mtx_lock(&softc->ctl_lock); 4763 if (retval != 0) { 4764 printf("%s: FETD %s port %d returned error " 4765 "%d for lun_enable on lun %jd\n", 4766 __func__, port->port_name, port->targ_port, 4767 retval, (intmax_t)lun->lun); 4768 } 4769 } 4770 4771 mtx_unlock(&softc->ctl_lock); 4772 ctl_isc_announce_lun(lun); 4773 4774 return (0); 4775} 4776 4777int 4778ctl_disable_lun(struct ctl_be_lun *be_lun) 4779{ 4780 struct ctl_softc *softc; 4781 struct ctl_port *port; 4782 struct ctl_lun *lun; 4783 int retval; 4784 4785 lun = (struct ctl_lun *)be_lun->ctl_lun; 4786 softc = lun->ctl_softc; 4787 4788 mtx_lock(&softc->ctl_lock); 4789 mtx_lock(&lun->lun_lock); 4790 if (lun->flags & CTL_LUN_DISABLED) { 4791 mtx_unlock(&lun->lun_lock); 4792 mtx_unlock(&softc->ctl_lock); 4793 return (0); 4794 } 4795 lun->flags |= CTL_LUN_DISABLED; 4796 mtx_unlock(&lun->lun_lock); 4797 4798 STAILQ_FOREACH(port, &softc->port_list, links) { 4799 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0 || 4800 port->lun_map != NULL || port->lun_disable == NULL) 4801 continue; 4802 4803 /* 4804 * Drop the lock before we call the frontend's disable 4805 * routine, to avoid lock order reversals. 4806 * 4807 * XXX KDM what happens if the frontend list changes while 4808 * we're traversing it? It's unlikely, but should be handled. 4809 */ 4810 mtx_unlock(&softc->ctl_lock); 4811 retval = port->lun_disable(port->targ_lun_arg, lun->lun); 4812 mtx_lock(&softc->ctl_lock); 4813 if (retval != 0) { 4814 printf("%s: FETD %s port %d returned error " 4815 "%d for lun_disable on lun %jd\n", 4816 __func__, port->port_name, port->targ_port, 4817 retval, (intmax_t)lun->lun); 4818 } 4819 } 4820 4821 mtx_unlock(&softc->ctl_lock); 4822 ctl_isc_announce_lun(lun); 4823 4824 return (0); 4825} 4826 4827int 4828ctl_start_lun(struct ctl_be_lun *be_lun) 4829{ 4830 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 4831 4832 mtx_lock(&lun->lun_lock); 4833 lun->flags &= ~CTL_LUN_STOPPED; 4834 mtx_unlock(&lun->lun_lock); 4835 return (0); 4836} 4837 4838int 4839ctl_stop_lun(struct ctl_be_lun *be_lun) 4840{ 4841 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 4842 4843 mtx_lock(&lun->lun_lock); 4844 lun->flags |= CTL_LUN_STOPPED; 4845 mtx_unlock(&lun->lun_lock); 4846 return (0); 4847} 4848 4849int 4850ctl_lun_no_media(struct ctl_be_lun *be_lun) 4851{ 4852 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 4853 4854 mtx_lock(&lun->lun_lock); 4855 lun->flags |= CTL_LUN_NO_MEDIA; 4856 mtx_unlock(&lun->lun_lock); 4857 return (0); 4858} 4859 4860int 4861ctl_lun_has_media(struct ctl_be_lun *be_lun) 4862{ 4863 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 4864 union ctl_ha_msg msg; 4865 4866 mtx_lock(&lun->lun_lock); 4867 lun->flags &= ~(CTL_LUN_NO_MEDIA | CTL_LUN_EJECTED); 4868 if (lun->flags & CTL_LUN_REMOVABLE) 4869 ctl_est_ua_all(lun, -1, CTL_UA_MEDIUM_CHANGE); 4870 mtx_unlock(&lun->lun_lock); 4871 if ((lun->flags & CTL_LUN_REMOVABLE) && 4872 lun->ctl_softc->ha_mode == CTL_HA_MODE_XFER) { 4873 bzero(&msg.ua, sizeof(msg.ua)); 4874 msg.hdr.msg_type = CTL_MSG_UA; 4875 msg.hdr.nexus.initid = -1; 4876 msg.hdr.nexus.targ_port = -1; 4877 msg.hdr.nexus.targ_lun = lun->lun; 4878 msg.hdr.nexus.targ_mapped_lun = lun->lun; 4879 msg.ua.ua_all = 1; 4880 msg.ua.ua_set = 1; 4881 msg.ua.ua_type = CTL_UA_MEDIUM_CHANGE; 4882 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, sizeof(msg.ua), 4883 M_WAITOK); 4884 } 4885 return (0); 4886} 4887 4888int 4889ctl_lun_ejected(struct ctl_be_lun *be_lun) 4890{ 4891 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 4892 4893 mtx_lock(&lun->lun_lock); 4894 lun->flags |= CTL_LUN_EJECTED; 4895 mtx_unlock(&lun->lun_lock); 4896 return (0); 4897} 4898 4899int 4900ctl_lun_primary(struct ctl_be_lun *be_lun) 4901{ 4902 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 4903 4904 mtx_lock(&lun->lun_lock); 4905 lun->flags |= CTL_LUN_PRIMARY_SC; 4906 ctl_est_ua_all(lun, -1, CTL_UA_ASYM_ACC_CHANGE); 4907 mtx_unlock(&lun->lun_lock); 4908 ctl_isc_announce_lun(lun); 4909 return (0); 4910} 4911 4912int 4913ctl_lun_secondary(struct ctl_be_lun *be_lun) 4914{ 4915 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 4916 4917 mtx_lock(&lun->lun_lock); 4918 lun->flags &= ~CTL_LUN_PRIMARY_SC; 4919 ctl_est_ua_all(lun, -1, CTL_UA_ASYM_ACC_CHANGE); 4920 mtx_unlock(&lun->lun_lock); 4921 ctl_isc_announce_lun(lun); 4922 return (0); 4923} 4924 4925int 4926ctl_invalidate_lun(struct ctl_be_lun *be_lun) 4927{ 4928 struct ctl_softc *softc; 4929 struct ctl_lun *lun; 4930 4931 lun = (struct ctl_lun *)be_lun->ctl_lun; 4932 softc = lun->ctl_softc; 4933 4934 mtx_lock(&lun->lun_lock); 4935 4936 /* 4937 * The LUN needs to be disabled before it can be marked invalid. 4938 */ 4939 if ((lun->flags & CTL_LUN_DISABLED) == 0) { 4940 mtx_unlock(&lun->lun_lock); 4941 return (-1); 4942 } 4943 /* 4944 * Mark the LUN invalid. 4945 */ 4946 lun->flags |= CTL_LUN_INVALID; 4947 4948 /* 4949 * If there is nothing in the OOA queue, go ahead and free the LUN. 4950 * If we have something in the OOA queue, we'll free it when the 4951 * last I/O completes. 4952 */ 4953 if (TAILQ_EMPTY(&lun->ooa_queue)) { 4954 mtx_unlock(&lun->lun_lock); 4955 mtx_lock(&softc->ctl_lock); 4956 ctl_free_lun(lun); 4957 mtx_unlock(&softc->ctl_lock); 4958 } else 4959 mtx_unlock(&lun->lun_lock); 4960 4961 return (0); 4962} 4963 4964void 4965ctl_lun_capacity_changed(struct ctl_be_lun *be_lun) 4966{ 4967 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 4968 union ctl_ha_msg msg; 4969 4970 mtx_lock(&lun->lun_lock); 4971 ctl_est_ua_all(lun, -1, CTL_UA_CAPACITY_CHANGE); 4972 mtx_unlock(&lun->lun_lock); 4973 if (lun->ctl_softc->ha_mode == CTL_HA_MODE_XFER) { 4974 /* Send msg to other side. */ 4975 bzero(&msg.ua, sizeof(msg.ua)); 4976 msg.hdr.msg_type = CTL_MSG_UA; 4977 msg.hdr.nexus.initid = -1; 4978 msg.hdr.nexus.targ_port = -1; 4979 msg.hdr.nexus.targ_lun = lun->lun; 4980 msg.hdr.nexus.targ_mapped_lun = lun->lun; 4981 msg.ua.ua_all = 1; 4982 msg.ua.ua_set = 1; 4983 msg.ua.ua_type = CTL_UA_CAPACITY_CHANGE; 4984 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, sizeof(msg.ua), 4985 M_WAITOK); 4986 } 4987} 4988 4989/* 4990 * Backend "memory move is complete" callback for requests that never 4991 * make it down to say RAIDCore's configuration code. 4992 */ 4993int 4994ctl_config_move_done(union ctl_io *io) 4995{ 4996 int retval; 4997 4998 CTL_DEBUG_PRINT(("ctl_config_move_done\n")); 4999 KASSERT(io->io_hdr.io_type == CTL_IO_SCSI, 5000 ("Config I/O type isn't CTL_IO_SCSI (%d)!", io->io_hdr.io_type)); 5001 5002 if ((io->io_hdr.port_status != 0) && 5003 ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE || 5004 (io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS)) { 5005 /* 5006 * For hardware error sense keys, the sense key 5007 * specific value is defined to be a retry count, 5008 * but we use it to pass back an internal FETD 5009 * error code. XXX KDM Hopefully the FETD is only 5010 * using 16 bits for an error code, since that's 5011 * all the space we have in the sks field. 5012 */ 5013 ctl_set_internal_failure(&io->scsiio, 5014 /*sks_valid*/ 1, 5015 /*retry_count*/ 5016 io->io_hdr.port_status); 5017 } 5018 5019 if (ctl_debug & CTL_DEBUG_CDB_DATA) 5020 ctl_data_print(io); 5021 if (((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_IN) || 5022 ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE && 5023 (io->io_hdr.status & CTL_STATUS_MASK) != CTL_SUCCESS) || 5024 ((io->io_hdr.flags & CTL_FLAG_ABORT) != 0)) { 5025 /* 5026 * XXX KDM just assuming a single pointer here, and not a 5027 * S/G list. If we start using S/G lists for config data, 5028 * we'll need to know how to clean them up here as well. 5029 */ 5030 if (io->io_hdr.flags & CTL_FLAG_ALLOCATED) 5031 free(io->scsiio.kern_data_ptr, M_CTL); 5032 ctl_done(io); 5033 retval = CTL_RETVAL_COMPLETE; 5034 } else { 5035 /* 5036 * XXX KDM now we need to continue data movement. Some 5037 * options: 5038 * - call ctl_scsiio() again? We don't do this for data 5039 * writes, because for those at least we know ahead of 5040 * time where the write will go and how long it is. For 5041 * config writes, though, that information is largely 5042 * contained within the write itself, thus we need to 5043 * parse out the data again. 5044 * 5045 * - Call some other function once the data is in? 5046 */ 5047 5048 /* 5049 * XXX KDM call ctl_scsiio() again for now, and check flag 5050 * bits to see whether we're allocated or not. 5051 */ 5052 retval = ctl_scsiio(&io->scsiio); 5053 } 5054 return (retval); 5055} 5056 5057/* 5058 * This gets called by a backend driver when it is done with a 5059 * data_submit method. 5060 */ 5061void 5062ctl_data_submit_done(union ctl_io *io) 5063{ 5064 /* 5065 * If the IO_CONT flag is set, we need to call the supplied 5066 * function to continue processing the I/O, instead of completing 5067 * the I/O just yet. 5068 * 5069 * If there is an error, though, we don't want to keep processing. 5070 * Instead, just send status back to the initiator. 5071 */ 5072 if ((io->io_hdr.flags & CTL_FLAG_IO_CONT) && 5073 (io->io_hdr.flags & CTL_FLAG_ABORT) == 0 && 5074 ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE || 5075 (io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS)) { 5076 io->scsiio.io_cont(io); 5077 return; 5078 } 5079 ctl_done(io); 5080} 5081 5082/* 5083 * This gets called by a backend driver when it is done with a 5084 * configuration write. 5085 */ 5086void 5087ctl_config_write_done(union ctl_io *io) 5088{ 5089 uint8_t *buf; 5090 5091 /* 5092 * If the IO_CONT flag is set, we need to call the supplied 5093 * function to continue processing the I/O, instead of completing 5094 * the I/O just yet. 5095 * 5096 * If there is an error, though, we don't want to keep processing. 5097 * Instead, just send status back to the initiator. 5098 */ 5099 if ((io->io_hdr.flags & CTL_FLAG_IO_CONT) && 5100 (io->io_hdr.flags & CTL_FLAG_ABORT) == 0 && 5101 ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE || 5102 (io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS)) { 5103 io->scsiio.io_cont(io); 5104 return; 5105 } 5106 /* 5107 * Since a configuration write can be done for commands that actually 5108 * have data allocated, like write buffer, and commands that have 5109 * no data, like start/stop unit, we need to check here. 5110 */ 5111 if (io->io_hdr.flags & CTL_FLAG_ALLOCATED) 5112 buf = io->scsiio.kern_data_ptr; 5113 else 5114 buf = NULL; 5115 ctl_done(io); 5116 if (buf) 5117 free(buf, M_CTL); 5118} 5119 5120void 5121ctl_config_read_done(union ctl_io *io) 5122{ 5123 uint8_t *buf; 5124 5125 /* 5126 * If there is some error -- we are done, skip data transfer. 5127 */ 5128 if ((io->io_hdr.flags & CTL_FLAG_ABORT) != 0 || 5129 ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE && 5130 (io->io_hdr.status & CTL_STATUS_MASK) != CTL_SUCCESS)) { 5131 if (io->io_hdr.flags & CTL_FLAG_ALLOCATED) 5132 buf = io->scsiio.kern_data_ptr; 5133 else 5134 buf = NULL; 5135 ctl_done(io); 5136 if (buf) 5137 free(buf, M_CTL); 5138 return; 5139 } 5140 5141 /* 5142 * If the IO_CONT flag is set, we need to call the supplied 5143 * function to continue processing the I/O, instead of completing 5144 * the I/O just yet. 5145 */ 5146 if (io->io_hdr.flags & CTL_FLAG_IO_CONT) { 5147 io->scsiio.io_cont(io); 5148 return; 5149 } 5150 5151 ctl_datamove(io); 5152} 5153 5154/* 5155 * SCSI release command. 5156 */ 5157int 5158ctl_scsi_release(struct ctl_scsiio *ctsio) 5159{ 5160 struct ctl_lun *lun; 5161 uint32_t residx; 5162 5163 CTL_DEBUG_PRINT(("ctl_scsi_release\n")); 5164 5165 residx = ctl_get_initindex(&ctsio->io_hdr.nexus); 5166 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5167 5168 /* 5169 * XXX KDM right now, we only support LUN reservation. We don't 5170 * support 3rd party reservations, or extent reservations, which 5171 * might actually need the parameter list. If we've gotten this 5172 * far, we've got a LUN reservation. Anything else got kicked out 5173 * above. So, according to SPC, ignore the length. 5174 */ 5175 5176 mtx_lock(&lun->lun_lock); 5177 5178 /* 5179 * According to SPC, it is not an error for an intiator to attempt 5180 * to release a reservation on a LUN that isn't reserved, or that 5181 * is reserved by another initiator. The reservation can only be 5182 * released, though, by the initiator who made it or by one of 5183 * several reset type events. 5184 */ 5185 if ((lun->flags & CTL_LUN_RESERVED) && (lun->res_idx == residx)) 5186 lun->flags &= ~CTL_LUN_RESERVED; 5187 5188 mtx_unlock(&lun->lun_lock); 5189 5190 ctl_set_success(ctsio); 5191 ctl_done((union ctl_io *)ctsio); 5192 return (CTL_RETVAL_COMPLETE); 5193} 5194 5195int 5196ctl_scsi_reserve(struct ctl_scsiio *ctsio) 5197{ 5198 struct ctl_lun *lun; 5199 uint32_t residx; 5200 5201 CTL_DEBUG_PRINT(("ctl_reserve\n")); 5202 5203 residx = ctl_get_initindex(&ctsio->io_hdr.nexus); 5204 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5205 5206 /* 5207 * XXX KDM right now, we only support LUN reservation. We don't 5208 * support 3rd party reservations, or extent reservations, which 5209 * might actually need the parameter list. If we've gotten this 5210 * far, we've got a LUN reservation. Anything else got kicked out 5211 * above. So, according to SPC, ignore the length. 5212 */ 5213 5214 mtx_lock(&lun->lun_lock); 5215 if ((lun->flags & CTL_LUN_RESERVED) && (lun->res_idx != residx)) { 5216 ctl_set_reservation_conflict(ctsio); 5217 goto bailout; 5218 } 5219 5220 /* SPC-3 exceptions to SPC-2 RESERVE and RELEASE behavior. */ 5221 if (lun->flags & CTL_LUN_PR_RESERVED) { 5222 ctl_set_success(ctsio); 5223 goto bailout; 5224 } 5225 5226 lun->flags |= CTL_LUN_RESERVED; 5227 lun->res_idx = residx; 5228 ctl_set_success(ctsio); 5229 5230bailout: 5231 mtx_unlock(&lun->lun_lock); 5232 ctl_done((union ctl_io *)ctsio); 5233 return (CTL_RETVAL_COMPLETE); 5234} 5235 5236int 5237ctl_start_stop(struct ctl_scsiio *ctsio) 5238{ 5239 struct scsi_start_stop_unit *cdb; 5240 struct ctl_lun *lun; 5241 int retval; 5242 5243 CTL_DEBUG_PRINT(("ctl_start_stop\n")); 5244 5245 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5246 cdb = (struct scsi_start_stop_unit *)ctsio->cdb; 5247 5248 if ((cdb->how & SSS_PC_MASK) == 0) { 5249 if ((lun->flags & CTL_LUN_PR_RESERVED) && 5250 (cdb->how & SSS_START) == 0) { 5251 uint32_t residx; 5252 5253 residx = ctl_get_initindex(&ctsio->io_hdr.nexus); 5254 if (ctl_get_prkey(lun, residx) == 0 || 5255 (lun->pr_res_idx != residx && lun->pr_res_type < 4)) { 5256 5257 ctl_set_reservation_conflict(ctsio); 5258 ctl_done((union ctl_io *)ctsio); 5259 return (CTL_RETVAL_COMPLETE); 5260 } 5261 } 5262 5263 if ((cdb->how & SSS_LOEJ) && 5264 (lun->flags & CTL_LUN_REMOVABLE) == 0) { 5265 ctl_set_invalid_field(ctsio, 5266 /*sks_valid*/ 1, 5267 /*command*/ 1, 5268 /*field*/ 4, 5269 /*bit_valid*/ 1, 5270 /*bit*/ 1); 5271 ctl_done((union ctl_io *)ctsio); 5272 return (CTL_RETVAL_COMPLETE); 5273 } 5274 5275 if ((cdb->how & SSS_START) == 0 && (cdb->how & SSS_LOEJ) && 5276 lun->prevent_count > 0) { 5277 /* "Medium removal prevented" */ 5278 ctl_set_sense(ctsio, /*current_error*/ 1, 5279 /*sense_key*/(lun->flags & CTL_LUN_NO_MEDIA) ? 5280 SSD_KEY_NOT_READY : SSD_KEY_ILLEGAL_REQUEST, 5281 /*asc*/ 0x53, /*ascq*/ 0x02, SSD_ELEM_NONE); 5282 ctl_done((union ctl_io *)ctsio); 5283 return (CTL_RETVAL_COMPLETE); 5284 } 5285 } 5286 5287 retval = lun->backend->config_write((union ctl_io *)ctsio); 5288 return (retval); 5289} 5290 5291int 5292ctl_prevent_allow(struct ctl_scsiio *ctsio) 5293{ 5294 struct ctl_lun *lun; 5295 struct scsi_prevent *cdb; 5296 int retval; 5297 uint32_t initidx; 5298 5299 CTL_DEBUG_PRINT(("ctl_prevent_allow\n")); 5300 5301 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5302 cdb = (struct scsi_prevent *)ctsio->cdb; 5303 5304 if ((lun->flags & CTL_LUN_REMOVABLE) == 0) { 5305 ctl_set_invalid_opcode(ctsio); 5306 ctl_done((union ctl_io *)ctsio); 5307 return (CTL_RETVAL_COMPLETE); 5308 } 5309 5310 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 5311 mtx_lock(&lun->lun_lock); 5312 if ((cdb->how & PR_PREVENT) && 5313 ctl_is_set(lun->prevent, initidx) == 0) { 5314 ctl_set_mask(lun->prevent, initidx); 5315 lun->prevent_count++; 5316 } else if ((cdb->how & PR_PREVENT) == 0 && 5317 ctl_is_set(lun->prevent, initidx)) { 5318 ctl_clear_mask(lun->prevent, initidx); 5319 lun->prevent_count--; 5320 } 5321 mtx_unlock(&lun->lun_lock); 5322 retval = lun->backend->config_write((union ctl_io *)ctsio); 5323 return (retval); 5324} 5325 5326/* 5327 * We support the SYNCHRONIZE CACHE command (10 and 16 byte versions), but 5328 * we don't really do anything with the LBA and length fields if the user 5329 * passes them in. Instead we'll just flush out the cache for the entire 5330 * LUN. 5331 */ 5332int 5333ctl_sync_cache(struct ctl_scsiio *ctsio) 5334{ 5335 struct ctl_lun *lun; 5336 struct ctl_softc *softc; 5337 struct ctl_lba_len_flags *lbalen; 5338 uint64_t starting_lba; 5339 uint32_t block_count; 5340 int retval; 5341 uint8_t byte2; 5342 5343 CTL_DEBUG_PRINT(("ctl_sync_cache\n")); 5344 5345 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5346 softc = lun->ctl_softc; 5347 retval = 0; 5348 5349 switch (ctsio->cdb[0]) { 5350 case SYNCHRONIZE_CACHE: { 5351 struct scsi_sync_cache *cdb; 5352 cdb = (struct scsi_sync_cache *)ctsio->cdb; 5353 5354 starting_lba = scsi_4btoul(cdb->begin_lba); 5355 block_count = scsi_2btoul(cdb->lb_count); 5356 byte2 = cdb->byte2; 5357 break; 5358 } 5359 case SYNCHRONIZE_CACHE_16: { 5360 struct scsi_sync_cache_16 *cdb; 5361 cdb = (struct scsi_sync_cache_16 *)ctsio->cdb; 5362 5363 starting_lba = scsi_8btou64(cdb->begin_lba); 5364 block_count = scsi_4btoul(cdb->lb_count); 5365 byte2 = cdb->byte2; 5366 break; 5367 } 5368 default: 5369 ctl_set_invalid_opcode(ctsio); 5370 ctl_done((union ctl_io *)ctsio); 5371 goto bailout; 5372 break; /* NOTREACHED */ 5373 } 5374 5375 /* 5376 * We check the LBA and length, but don't do anything with them. 5377 * A SYNCHRONIZE CACHE will cause the entire cache for this lun to 5378 * get flushed. This check will just help satisfy anyone who wants 5379 * to see an error for an out of range LBA. 5380 */ 5381 if ((starting_lba + block_count) > (lun->be_lun->maxlba + 1)) { 5382 ctl_set_lba_out_of_range(ctsio, 5383 MAX(starting_lba, lun->be_lun->maxlba + 1)); 5384 ctl_done((union ctl_io *)ctsio); 5385 goto bailout; 5386 } 5387 5388 lbalen = (struct ctl_lba_len_flags *)&ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 5389 lbalen->lba = starting_lba; 5390 lbalen->len = block_count; 5391 lbalen->flags = byte2; 5392 retval = lun->backend->config_write((union ctl_io *)ctsio); 5393 5394bailout: 5395 return (retval); 5396} 5397 5398int 5399ctl_format(struct ctl_scsiio *ctsio) 5400{ 5401 struct scsi_format *cdb; 5402 struct ctl_lun *lun; 5403 int length, defect_list_len; 5404 5405 CTL_DEBUG_PRINT(("ctl_format\n")); 5406 5407 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5408 5409 cdb = (struct scsi_format *)ctsio->cdb; 5410 5411 length = 0; 5412 if (cdb->byte2 & SF_FMTDATA) { 5413 if (cdb->byte2 & SF_LONGLIST) 5414 length = sizeof(struct scsi_format_header_long); 5415 else 5416 length = sizeof(struct scsi_format_header_short); 5417 } 5418 5419 if (((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) 5420 && (length > 0)) { 5421 ctsio->kern_data_ptr = malloc(length, M_CTL, M_WAITOK); 5422 ctsio->kern_data_len = length; 5423 ctsio->kern_total_len = length; 5424 ctsio->kern_data_resid = 0; 5425 ctsio->kern_rel_offset = 0; 5426 ctsio->kern_sg_entries = 0; 5427 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5428 ctsio->be_move_done = ctl_config_move_done; 5429 ctl_datamove((union ctl_io *)ctsio); 5430 5431 return (CTL_RETVAL_COMPLETE); 5432 } 5433 5434 defect_list_len = 0; 5435 5436 if (cdb->byte2 & SF_FMTDATA) { 5437 if (cdb->byte2 & SF_LONGLIST) { 5438 struct scsi_format_header_long *header; 5439 5440 header = (struct scsi_format_header_long *) 5441 ctsio->kern_data_ptr; 5442 5443 defect_list_len = scsi_4btoul(header->defect_list_len); 5444 if (defect_list_len != 0) { 5445 ctl_set_invalid_field(ctsio, 5446 /*sks_valid*/ 1, 5447 /*command*/ 0, 5448 /*field*/ 2, 5449 /*bit_valid*/ 0, 5450 /*bit*/ 0); 5451 goto bailout; 5452 } 5453 } else { 5454 struct scsi_format_header_short *header; 5455 5456 header = (struct scsi_format_header_short *) 5457 ctsio->kern_data_ptr; 5458 5459 defect_list_len = scsi_2btoul(header->defect_list_len); 5460 if (defect_list_len != 0) { 5461 ctl_set_invalid_field(ctsio, 5462 /*sks_valid*/ 1, 5463 /*command*/ 0, 5464 /*field*/ 2, 5465 /*bit_valid*/ 0, 5466 /*bit*/ 0); 5467 goto bailout; 5468 } 5469 } 5470 } 5471 5472 ctl_set_success(ctsio); 5473bailout: 5474 5475 if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) { 5476 free(ctsio->kern_data_ptr, M_CTL); 5477 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED; 5478 } 5479 5480 ctl_done((union ctl_io *)ctsio); 5481 return (CTL_RETVAL_COMPLETE); 5482} 5483 5484int 5485ctl_read_buffer(struct ctl_scsiio *ctsio) 5486{ 5487 struct ctl_lun *lun; 5488 uint64_t buffer_offset; 5489 uint32_t len; 5490 uint8_t byte2; 5491 static uint8_t descr[4]; 5492 static uint8_t echo_descr[4] = { 0 }; 5493 5494 CTL_DEBUG_PRINT(("ctl_read_buffer\n")); 5495 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5496 switch (ctsio->cdb[0]) { 5497 case READ_BUFFER: { 5498 struct scsi_read_buffer *cdb; 5499 5500 cdb = (struct scsi_read_buffer *)ctsio->cdb; 5501 buffer_offset = scsi_3btoul(cdb->offset); 5502 len = scsi_3btoul(cdb->length); 5503 byte2 = cdb->byte2; 5504 break; 5505 } 5506 case READ_BUFFER_16: { 5507 struct scsi_read_buffer_16 *cdb; 5508 5509 cdb = (struct scsi_read_buffer_16 *)ctsio->cdb; 5510 buffer_offset = scsi_8btou64(cdb->offset); 5511 len = scsi_4btoul(cdb->length); 5512 byte2 = cdb->byte2; 5513 break; 5514 } 5515 default: /* This shouldn't happen. */ 5516 ctl_set_invalid_opcode(ctsio); 5517 ctl_done((union ctl_io *)ctsio); 5518 return (CTL_RETVAL_COMPLETE); 5519 } 5520 5521 if (buffer_offset > CTL_WRITE_BUFFER_SIZE || 5522 buffer_offset + len > CTL_WRITE_BUFFER_SIZE) { 5523 ctl_set_invalid_field(ctsio, 5524 /*sks_valid*/ 1, 5525 /*command*/ 1, 5526 /*field*/ 6, 5527 /*bit_valid*/ 0, 5528 /*bit*/ 0); 5529 ctl_done((union ctl_io *)ctsio); 5530 return (CTL_RETVAL_COMPLETE); 5531 } 5532 5533 if ((byte2 & RWB_MODE) == RWB_MODE_DESCR) { 5534 descr[0] = 0; 5535 scsi_ulto3b(CTL_WRITE_BUFFER_SIZE, &descr[1]); 5536 ctsio->kern_data_ptr = descr; 5537 len = min(len, sizeof(descr)); 5538 } else if ((byte2 & RWB_MODE) == RWB_MODE_ECHO_DESCR) { 5539 ctsio->kern_data_ptr = echo_descr; 5540 len = min(len, sizeof(echo_descr)); 5541 } else { 5542 if (lun->write_buffer == NULL) { 5543 lun->write_buffer = malloc(CTL_WRITE_BUFFER_SIZE, 5544 M_CTL, M_WAITOK); 5545 } 5546 ctsio->kern_data_ptr = lun->write_buffer + buffer_offset; 5547 } 5548 ctsio->kern_data_len = len; 5549 ctsio->kern_total_len = len; 5550 ctsio->kern_data_resid = 0; 5551 ctsio->kern_rel_offset = 0; 5552 ctsio->kern_sg_entries = 0; 5553 ctl_set_success(ctsio); 5554 ctsio->be_move_done = ctl_config_move_done; 5555 ctl_datamove((union ctl_io *)ctsio); 5556 return (CTL_RETVAL_COMPLETE); 5557} 5558 5559int 5560ctl_write_buffer(struct ctl_scsiio *ctsio) 5561{ 5562 struct scsi_write_buffer *cdb; 5563 struct ctl_lun *lun; 5564 int buffer_offset, len; 5565 5566 CTL_DEBUG_PRINT(("ctl_write_buffer\n")); 5567 5568 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5569 cdb = (struct scsi_write_buffer *)ctsio->cdb; 5570 5571 len = scsi_3btoul(cdb->length); 5572 buffer_offset = scsi_3btoul(cdb->offset); 5573 5574 if (buffer_offset + len > CTL_WRITE_BUFFER_SIZE) { 5575 ctl_set_invalid_field(ctsio, 5576 /*sks_valid*/ 1, 5577 /*command*/ 1, 5578 /*field*/ 6, 5579 /*bit_valid*/ 0, 5580 /*bit*/ 0); 5581 ctl_done((union ctl_io *)ctsio); 5582 return (CTL_RETVAL_COMPLETE); 5583 } 5584 5585 /* 5586 * If we've got a kernel request that hasn't been malloced yet, 5587 * malloc it and tell the caller the data buffer is here. 5588 */ 5589 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 5590 if (lun->write_buffer == NULL) { 5591 lun->write_buffer = malloc(CTL_WRITE_BUFFER_SIZE, 5592 M_CTL, M_WAITOK); 5593 } 5594 ctsio->kern_data_ptr = lun->write_buffer + buffer_offset; 5595 ctsio->kern_data_len = len; 5596 ctsio->kern_total_len = len; 5597 ctsio->kern_data_resid = 0; 5598 ctsio->kern_rel_offset = 0; 5599 ctsio->kern_sg_entries = 0; 5600 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5601 ctsio->be_move_done = ctl_config_move_done; 5602 ctl_datamove((union ctl_io *)ctsio); 5603 5604 return (CTL_RETVAL_COMPLETE); 5605 } 5606 5607 ctl_set_success(ctsio); 5608 ctl_done((union ctl_io *)ctsio); 5609 return (CTL_RETVAL_COMPLETE); 5610} 5611 5612int 5613ctl_write_same(struct ctl_scsiio *ctsio) 5614{ 5615 struct ctl_lun *lun; 5616 struct ctl_lba_len_flags *lbalen; 5617 uint64_t lba; 5618 uint32_t num_blocks; 5619 int len, retval; 5620 uint8_t byte2; 5621 5622 CTL_DEBUG_PRINT(("ctl_write_same\n")); 5623 5624 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5625 5626 switch (ctsio->cdb[0]) { 5627 case WRITE_SAME_10: { 5628 struct scsi_write_same_10 *cdb; 5629 5630 cdb = (struct scsi_write_same_10 *)ctsio->cdb; 5631 5632 lba = scsi_4btoul(cdb->addr); 5633 num_blocks = scsi_2btoul(cdb->length); 5634 byte2 = cdb->byte2; 5635 break; 5636 } 5637 case WRITE_SAME_16: { 5638 struct scsi_write_same_16 *cdb; 5639 5640 cdb = (struct scsi_write_same_16 *)ctsio->cdb; 5641 5642 lba = scsi_8btou64(cdb->addr); 5643 num_blocks = scsi_4btoul(cdb->length); 5644 byte2 = cdb->byte2; 5645 break; 5646 } 5647 default: 5648 /* 5649 * We got a command we don't support. This shouldn't 5650 * happen, commands should be filtered out above us. 5651 */ 5652 ctl_set_invalid_opcode(ctsio); 5653 ctl_done((union ctl_io *)ctsio); 5654 5655 return (CTL_RETVAL_COMPLETE); 5656 break; /* NOTREACHED */ 5657 } 5658 5659 /* ANCHOR flag can be used only together with UNMAP */ 5660 if ((byte2 & SWS_UNMAP) == 0 && (byte2 & SWS_ANCHOR) != 0) { 5661 ctl_set_invalid_field(ctsio, /*sks_valid*/ 1, 5662 /*command*/ 1, /*field*/ 1, /*bit_valid*/ 1, /*bit*/ 0); 5663 ctl_done((union ctl_io *)ctsio); 5664 return (CTL_RETVAL_COMPLETE); 5665 } 5666 5667 /* 5668 * The first check is to make sure we're in bounds, the second 5669 * check is to catch wrap-around problems. If the lba + num blocks 5670 * is less than the lba, then we've wrapped around and the block 5671 * range is invalid anyway. 5672 */ 5673 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 5674 || ((lba + num_blocks) < lba)) { 5675 ctl_set_lba_out_of_range(ctsio, 5676 MAX(lba, lun->be_lun->maxlba + 1)); 5677 ctl_done((union ctl_io *)ctsio); 5678 return (CTL_RETVAL_COMPLETE); 5679 } 5680 5681 /* Zero number of blocks means "to the last logical block" */ 5682 if (num_blocks == 0) { 5683 if ((lun->be_lun->maxlba + 1) - lba > UINT32_MAX) { 5684 ctl_set_invalid_field(ctsio, 5685 /*sks_valid*/ 0, 5686 /*command*/ 1, 5687 /*field*/ 0, 5688 /*bit_valid*/ 0, 5689 /*bit*/ 0); 5690 ctl_done((union ctl_io *)ctsio); 5691 return (CTL_RETVAL_COMPLETE); 5692 } 5693 num_blocks = (lun->be_lun->maxlba + 1) - lba; 5694 } 5695 5696 len = lun->be_lun->blocksize; 5697 5698 /* 5699 * If we've got a kernel request that hasn't been malloced yet, 5700 * malloc it and tell the caller the data buffer is here. 5701 */ 5702 if ((byte2 & SWS_NDOB) == 0 && 5703 (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 5704 ctsio->kern_data_ptr = malloc(len, M_CTL, M_WAITOK); 5705 ctsio->kern_data_len = len; 5706 ctsio->kern_total_len = len; 5707 ctsio->kern_data_resid = 0; 5708 ctsio->kern_rel_offset = 0; 5709 ctsio->kern_sg_entries = 0; 5710 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5711 ctsio->be_move_done = ctl_config_move_done; 5712 ctl_datamove((union ctl_io *)ctsio); 5713 5714 return (CTL_RETVAL_COMPLETE); 5715 } 5716 5717 lbalen = (struct ctl_lba_len_flags *)&ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 5718 lbalen->lba = lba; 5719 lbalen->len = num_blocks; 5720 lbalen->flags = byte2; 5721 retval = lun->backend->config_write((union ctl_io *)ctsio); 5722 5723 return (retval); 5724} 5725 5726int 5727ctl_unmap(struct ctl_scsiio *ctsio) 5728{ 5729 struct ctl_lun *lun; 5730 struct scsi_unmap *cdb; 5731 struct ctl_ptr_len_flags *ptrlen; 5732 struct scsi_unmap_header *hdr; 5733 struct scsi_unmap_desc *buf, *end, *endnz, *range; 5734 uint64_t lba; 5735 uint32_t num_blocks; 5736 int len, retval; 5737 uint8_t byte2; 5738 5739 CTL_DEBUG_PRINT(("ctl_unmap\n")); 5740 5741 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5742 cdb = (struct scsi_unmap *)ctsio->cdb; 5743 5744 len = scsi_2btoul(cdb->length); 5745 byte2 = cdb->byte2; 5746 5747 /* 5748 * If we've got a kernel request that hasn't been malloced yet, 5749 * malloc it and tell the caller the data buffer is here. 5750 */ 5751 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 5752 ctsio->kern_data_ptr = malloc(len, M_CTL, M_WAITOK); 5753 ctsio->kern_data_len = len; 5754 ctsio->kern_total_len = len; 5755 ctsio->kern_data_resid = 0; 5756 ctsio->kern_rel_offset = 0; 5757 ctsio->kern_sg_entries = 0; 5758 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5759 ctsio->be_move_done = ctl_config_move_done; 5760 ctl_datamove((union ctl_io *)ctsio); 5761 5762 return (CTL_RETVAL_COMPLETE); 5763 } 5764 5765 len = ctsio->kern_total_len - ctsio->kern_data_resid; 5766 hdr = (struct scsi_unmap_header *)ctsio->kern_data_ptr; 5767 if (len < sizeof (*hdr) || 5768 len < (scsi_2btoul(hdr->length) + sizeof(hdr->length)) || 5769 len < (scsi_2btoul(hdr->desc_length) + sizeof (*hdr)) || 5770 scsi_2btoul(hdr->desc_length) % sizeof(*buf) != 0) { 5771 ctl_set_invalid_field(ctsio, 5772 /*sks_valid*/ 0, 5773 /*command*/ 0, 5774 /*field*/ 0, 5775 /*bit_valid*/ 0, 5776 /*bit*/ 0); 5777 goto done; 5778 } 5779 len = scsi_2btoul(hdr->desc_length); 5780 buf = (struct scsi_unmap_desc *)(hdr + 1); 5781 end = buf + len / sizeof(*buf); 5782 5783 endnz = buf; 5784 for (range = buf; range < end; range++) { 5785 lba = scsi_8btou64(range->lba); 5786 num_blocks = scsi_4btoul(range->length); 5787 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 5788 || ((lba + num_blocks) < lba)) { 5789 ctl_set_lba_out_of_range(ctsio, 5790 MAX(lba, lun->be_lun->maxlba + 1)); 5791 ctl_done((union ctl_io *)ctsio); 5792 return (CTL_RETVAL_COMPLETE); 5793 } 5794 if (num_blocks != 0) 5795 endnz = range + 1; 5796 } 5797 5798 /* 5799 * Block backend can not handle zero last range. 5800 * Filter it out and return if there is nothing left. 5801 */ 5802 len = (uint8_t *)endnz - (uint8_t *)buf; 5803 if (len == 0) { 5804 ctl_set_success(ctsio); 5805 goto done; 5806 } 5807 5808 mtx_lock(&lun->lun_lock); 5809 ptrlen = (struct ctl_ptr_len_flags *) 5810 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 5811 ptrlen->ptr = (void *)buf; 5812 ptrlen->len = len; 5813 ptrlen->flags = byte2; 5814 ctl_check_blocked(lun); 5815 mtx_unlock(&lun->lun_lock); 5816 5817 retval = lun->backend->config_write((union ctl_io *)ctsio); 5818 return (retval); 5819 5820done: 5821 if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) { 5822 free(ctsio->kern_data_ptr, M_CTL); 5823 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED; 5824 } 5825 ctl_done((union ctl_io *)ctsio); 5826 return (CTL_RETVAL_COMPLETE); 5827} 5828 5829int 5830ctl_default_page_handler(struct ctl_scsiio *ctsio, 5831 struct ctl_page_index *page_index, uint8_t *page_ptr) 5832{ 5833 struct ctl_lun *lun; 5834 uint8_t *current_cp, *saved_cp; 5835 int set_ua; 5836 uint32_t initidx; 5837 5838 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5839 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 5840 set_ua = 0; 5841 5842 current_cp = (page_index->page_data + (page_index->page_len * 5843 CTL_PAGE_CURRENT)); 5844 saved_cp = (page_index->page_data + (page_index->page_len * 5845 CTL_PAGE_SAVED)); 5846 5847 mtx_lock(&lun->lun_lock); 5848 if (memcmp(current_cp, page_ptr, page_index->page_len)) { 5849 memcpy(current_cp, page_ptr, page_index->page_len); 5850 memcpy(saved_cp, page_ptr, page_index->page_len); 5851 set_ua = 1; 5852 } 5853 if (set_ua != 0) 5854 ctl_est_ua_all(lun, initidx, CTL_UA_MODE_CHANGE); 5855 mtx_unlock(&lun->lun_lock); 5856 if (set_ua) { 5857 ctl_isc_announce_mode(lun, 5858 ctl_get_initindex(&ctsio->io_hdr.nexus), 5859 page_index->page_code, page_index->subpage); 5860 } 5861 return (CTL_RETVAL_COMPLETE); 5862} 5863 5864static void 5865ctl_ie_timer(void *arg) 5866{ 5867 struct ctl_lun *lun = arg; 5868 uint64_t t; 5869 5870 if (lun->ie_asc == 0) 5871 return; 5872 5873 if (lun->MODE_IE.mrie == SIEP_MRIE_UA) 5874 ctl_est_ua_all(lun, -1, CTL_UA_IE); 5875 else 5876 lun->ie_reported = 0; 5877 5878 if (lun->ie_reportcnt < scsi_4btoul(lun->MODE_IE.report_count)) { 5879 lun->ie_reportcnt++; 5880 t = scsi_4btoul(lun->MODE_IE.interval_timer); 5881 if (t == 0 || t == UINT32_MAX) 5882 t = 3000; /* 5 min */ 5883 callout_schedule(&lun->ie_callout, t * hz / 10); 5884 } 5885} 5886 5887int 5888ctl_ie_page_handler(struct ctl_scsiio *ctsio, 5889 struct ctl_page_index *page_index, uint8_t *page_ptr) 5890{ 5891 struct scsi_info_exceptions_page *pg; 5892 struct ctl_lun *lun; 5893 uint64_t t; 5894 5895 (void)ctl_default_page_handler(ctsio, page_index, page_ptr); 5896 5897 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5898 pg = (struct scsi_info_exceptions_page *)page_ptr; 5899 mtx_lock(&lun->lun_lock); 5900 if (pg->info_flags & SIEP_FLAGS_TEST) { 5901 lun->ie_asc = 0x5d; 5902 lun->ie_ascq = 0xff; 5903 if (pg->mrie == SIEP_MRIE_UA) { 5904 ctl_est_ua_all(lun, -1, CTL_UA_IE); 5905 lun->ie_reported = 1; 5906 } else { 5907 ctl_clr_ua_all(lun, -1, CTL_UA_IE); 5908 lun->ie_reported = -1; 5909 } 5910 lun->ie_reportcnt = 1; 5911 if (lun->ie_reportcnt < scsi_4btoul(pg->report_count)) { 5912 lun->ie_reportcnt++; 5913 t = scsi_4btoul(pg->interval_timer); 5914 if (t == 0 || t == UINT32_MAX) 5915 t = 3000; /* 5 min */ 5916 callout_reset(&lun->ie_callout, t * hz / 10, 5917 ctl_ie_timer, lun); 5918 } 5919 } else { 5920 lun->ie_asc = 0; 5921 lun->ie_ascq = 0; 5922 lun->ie_reported = 1; 5923 ctl_clr_ua_all(lun, -1, CTL_UA_IE); 5924 lun->ie_reportcnt = UINT32_MAX; 5925 callout_stop(&lun->ie_callout); 5926 } 5927 mtx_unlock(&lun->lun_lock); 5928 return (CTL_RETVAL_COMPLETE); 5929} 5930 5931static int 5932ctl_do_mode_select(union ctl_io *io) 5933{ 5934 struct scsi_mode_page_header *page_header; 5935 struct ctl_page_index *page_index; 5936 struct ctl_scsiio *ctsio; 5937 int page_len, page_len_offset, page_len_size; 5938 union ctl_modepage_info *modepage_info; 5939 struct ctl_lun *lun; 5940 int *len_left, *len_used; 5941 int retval, i; 5942 5943 ctsio = &io->scsiio; 5944 page_index = NULL; 5945 page_len = 0; 5946 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5947 5948 modepage_info = (union ctl_modepage_info *) 5949 ctsio->io_hdr.ctl_private[CTL_PRIV_MODEPAGE].bytes; 5950 len_left = &modepage_info->header.len_left; 5951 len_used = &modepage_info->header.len_used; 5952 5953do_next_page: 5954 5955 page_header = (struct scsi_mode_page_header *) 5956 (ctsio->kern_data_ptr + *len_used); 5957 5958 if (*len_left == 0) { 5959 free(ctsio->kern_data_ptr, M_CTL); 5960 ctl_set_success(ctsio); 5961 ctl_done((union ctl_io *)ctsio); 5962 return (CTL_RETVAL_COMPLETE); 5963 } else if (*len_left < sizeof(struct scsi_mode_page_header)) { 5964 5965 free(ctsio->kern_data_ptr, M_CTL); 5966 ctl_set_param_len_error(ctsio); 5967 ctl_done((union ctl_io *)ctsio); 5968 return (CTL_RETVAL_COMPLETE); 5969 5970 } else if ((page_header->page_code & SMPH_SPF) 5971 && (*len_left < sizeof(struct scsi_mode_page_header_sp))) { 5972 5973 free(ctsio->kern_data_ptr, M_CTL); 5974 ctl_set_param_len_error(ctsio); 5975 ctl_done((union ctl_io *)ctsio); 5976 return (CTL_RETVAL_COMPLETE); 5977 } 5978 5979 5980 /* 5981 * XXX KDM should we do something with the block descriptor? 5982 */ 5983 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 5984 page_index = &lun->mode_pages.index[i]; 5985 if (lun->be_lun->lun_type == T_DIRECT && 5986 (page_index->page_flags & CTL_PAGE_FLAG_DIRECT) == 0) 5987 continue; 5988 if (lun->be_lun->lun_type == T_PROCESSOR && 5989 (page_index->page_flags & CTL_PAGE_FLAG_PROC) == 0) 5990 continue; 5991 if (lun->be_lun->lun_type == T_CDROM && 5992 (page_index->page_flags & CTL_PAGE_FLAG_CDROM) == 0) 5993 continue; 5994 5995 if ((page_index->page_code & SMPH_PC_MASK) != 5996 (page_header->page_code & SMPH_PC_MASK)) 5997 continue; 5998 5999 /* 6000 * If neither page has a subpage code, then we've got a 6001 * match. 6002 */ 6003 if (((page_index->page_code & SMPH_SPF) == 0) 6004 && ((page_header->page_code & SMPH_SPF) == 0)) { 6005 page_len = page_header->page_length; 6006 break; 6007 } 6008 6009 /* 6010 * If both pages have subpages, then the subpage numbers 6011 * have to match. 6012 */ 6013 if ((page_index->page_code & SMPH_SPF) 6014 && (page_header->page_code & SMPH_SPF)) { 6015 struct scsi_mode_page_header_sp *sph; 6016 6017 sph = (struct scsi_mode_page_header_sp *)page_header; 6018 if (page_index->subpage == sph->subpage) { 6019 page_len = scsi_2btoul(sph->page_length); 6020 break; 6021 } 6022 } 6023 } 6024 6025 /* 6026 * If we couldn't find the page, or if we don't have a mode select 6027 * handler for it, send back an error to the user. 6028 */ 6029 if ((i >= CTL_NUM_MODE_PAGES) 6030 || (page_index->select_handler == NULL)) { 6031 ctl_set_invalid_field(ctsio, 6032 /*sks_valid*/ 1, 6033 /*command*/ 0, 6034 /*field*/ *len_used, 6035 /*bit_valid*/ 0, 6036 /*bit*/ 0); 6037 free(ctsio->kern_data_ptr, M_CTL); 6038 ctl_done((union ctl_io *)ctsio); 6039 return (CTL_RETVAL_COMPLETE); 6040 } 6041 6042 if (page_index->page_code & SMPH_SPF) { 6043 page_len_offset = 2; 6044 page_len_size = 2; 6045 } else { 6046 page_len_size = 1; 6047 page_len_offset = 1; 6048 } 6049 6050 /* 6051 * If the length the initiator gives us isn't the one we specify in 6052 * the mode page header, or if they didn't specify enough data in 6053 * the CDB to avoid truncating this page, kick out the request. 6054 */ 6055 if (page_len != page_index->page_len - page_len_offset - page_len_size) { 6056 ctl_set_invalid_field(ctsio, 6057 /*sks_valid*/ 1, 6058 /*command*/ 0, 6059 /*field*/ *len_used + page_len_offset, 6060 /*bit_valid*/ 0, 6061 /*bit*/ 0); 6062 free(ctsio->kern_data_ptr, M_CTL); 6063 ctl_done((union ctl_io *)ctsio); 6064 return (CTL_RETVAL_COMPLETE); 6065 } 6066 if (*len_left < page_index->page_len) { 6067 free(ctsio->kern_data_ptr, M_CTL); 6068 ctl_set_param_len_error(ctsio); 6069 ctl_done((union ctl_io *)ctsio); 6070 return (CTL_RETVAL_COMPLETE); 6071 } 6072 6073 /* 6074 * Run through the mode page, checking to make sure that the bits 6075 * the user changed are actually legal for him to change. 6076 */ 6077 for (i = 0; i < page_index->page_len; i++) { 6078 uint8_t *user_byte, *change_mask, *current_byte; 6079 int bad_bit; 6080 int j; 6081 6082 user_byte = (uint8_t *)page_header + i; 6083 change_mask = page_index->page_data + 6084 (page_index->page_len * CTL_PAGE_CHANGEABLE) + i; 6085 current_byte = page_index->page_data + 6086 (page_index->page_len * CTL_PAGE_CURRENT) + i; 6087 6088 /* 6089 * Check to see whether the user set any bits in this byte 6090 * that he is not allowed to set. 6091 */ 6092 if ((*user_byte & ~(*change_mask)) == 6093 (*current_byte & ~(*change_mask))) 6094 continue; 6095 6096 /* 6097 * Go through bit by bit to determine which one is illegal. 6098 */ 6099 bad_bit = 0; 6100 for (j = 7; j >= 0; j--) { 6101 if ((((1 << i) & ~(*change_mask)) & *user_byte) != 6102 (((1 << i) & ~(*change_mask)) & *current_byte)) { 6103 bad_bit = i; 6104 break; 6105 } 6106 } 6107 ctl_set_invalid_field(ctsio, 6108 /*sks_valid*/ 1, 6109 /*command*/ 0, 6110 /*field*/ *len_used + i, 6111 /*bit_valid*/ 1, 6112 /*bit*/ bad_bit); 6113 free(ctsio->kern_data_ptr, M_CTL); 6114 ctl_done((union ctl_io *)ctsio); 6115 return (CTL_RETVAL_COMPLETE); 6116 } 6117 6118 /* 6119 * Decrement these before we call the page handler, since we may 6120 * end up getting called back one way or another before the handler 6121 * returns to this context. 6122 */ 6123 *len_left -= page_index->page_len; 6124 *len_used += page_index->page_len; 6125 6126 retval = page_index->select_handler(ctsio, page_index, 6127 (uint8_t *)page_header); 6128 6129 /* 6130 * If the page handler returns CTL_RETVAL_QUEUED, then we need to 6131 * wait until this queued command completes to finish processing 6132 * the mode page. If it returns anything other than 6133 * CTL_RETVAL_COMPLETE (e.g. CTL_RETVAL_ERROR), then it should have 6134 * already set the sense information, freed the data pointer, and 6135 * completed the io for us. 6136 */ 6137 if (retval != CTL_RETVAL_COMPLETE) 6138 goto bailout_no_done; 6139 6140 /* 6141 * If the initiator sent us more than one page, parse the next one. 6142 */ 6143 if (*len_left > 0) 6144 goto do_next_page; 6145 6146 ctl_set_success(ctsio); 6147 free(ctsio->kern_data_ptr, M_CTL); 6148 ctl_done((union ctl_io *)ctsio); 6149 6150bailout_no_done: 6151 6152 return (CTL_RETVAL_COMPLETE); 6153 6154} 6155 6156int 6157ctl_mode_select(struct ctl_scsiio *ctsio) 6158{ 6159 int param_len, pf, sp; 6160 int header_size, bd_len; 6161 union ctl_modepage_info *modepage_info; 6162 6163 switch (ctsio->cdb[0]) { 6164 case MODE_SELECT_6: { 6165 struct scsi_mode_select_6 *cdb; 6166 6167 cdb = (struct scsi_mode_select_6 *)ctsio->cdb; 6168 6169 pf = (cdb->byte2 & SMS_PF) ? 1 : 0; 6170 sp = (cdb->byte2 & SMS_SP) ? 1 : 0; 6171 param_len = cdb->length; 6172 header_size = sizeof(struct scsi_mode_header_6); 6173 break; 6174 } 6175 case MODE_SELECT_10: { 6176 struct scsi_mode_select_10 *cdb; 6177 6178 cdb = (struct scsi_mode_select_10 *)ctsio->cdb; 6179 6180 pf = (cdb->byte2 & SMS_PF) ? 1 : 0; 6181 sp = (cdb->byte2 & SMS_SP) ? 1 : 0; 6182 param_len = scsi_2btoul(cdb->length); 6183 header_size = sizeof(struct scsi_mode_header_10); 6184 break; 6185 } 6186 default: 6187 ctl_set_invalid_opcode(ctsio); 6188 ctl_done((union ctl_io *)ctsio); 6189 return (CTL_RETVAL_COMPLETE); 6190 } 6191 6192 /* 6193 * From SPC-3: 6194 * "A parameter list length of zero indicates that the Data-Out Buffer 6195 * shall be empty. This condition shall not be considered as an error." 6196 */ 6197 if (param_len == 0) { 6198 ctl_set_success(ctsio); 6199 ctl_done((union ctl_io *)ctsio); 6200 return (CTL_RETVAL_COMPLETE); 6201 } 6202 6203 /* 6204 * Since we'll hit this the first time through, prior to 6205 * allocation, we don't need to free a data buffer here. 6206 */ 6207 if (param_len < header_size) { 6208 ctl_set_param_len_error(ctsio); 6209 ctl_done((union ctl_io *)ctsio); 6210 return (CTL_RETVAL_COMPLETE); 6211 } 6212 6213 /* 6214 * Allocate the data buffer and grab the user's data. In theory, 6215 * we shouldn't have to sanity check the parameter list length here 6216 * because the maximum size is 64K. We should be able to malloc 6217 * that much without too many problems. 6218 */ 6219 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 6220 ctsio->kern_data_ptr = malloc(param_len, M_CTL, M_WAITOK); 6221 ctsio->kern_data_len = param_len; 6222 ctsio->kern_total_len = param_len; 6223 ctsio->kern_data_resid = 0; 6224 ctsio->kern_rel_offset = 0; 6225 ctsio->kern_sg_entries = 0; 6226 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6227 ctsio->be_move_done = ctl_config_move_done; 6228 ctl_datamove((union ctl_io *)ctsio); 6229 6230 return (CTL_RETVAL_COMPLETE); 6231 } 6232 6233 switch (ctsio->cdb[0]) { 6234 case MODE_SELECT_6: { 6235 struct scsi_mode_header_6 *mh6; 6236 6237 mh6 = (struct scsi_mode_header_6 *)ctsio->kern_data_ptr; 6238 bd_len = mh6->blk_desc_len; 6239 break; 6240 } 6241 case MODE_SELECT_10: { 6242 struct scsi_mode_header_10 *mh10; 6243 6244 mh10 = (struct scsi_mode_header_10 *)ctsio->kern_data_ptr; 6245 bd_len = scsi_2btoul(mh10->blk_desc_len); 6246 break; 6247 } 6248 default: 6249 panic("%s: Invalid CDB type %#x", __func__, ctsio->cdb[0]); 6250 } 6251 6252 if (param_len < (header_size + bd_len)) { 6253 free(ctsio->kern_data_ptr, M_CTL); 6254 ctl_set_param_len_error(ctsio); 6255 ctl_done((union ctl_io *)ctsio); 6256 return (CTL_RETVAL_COMPLETE); 6257 } 6258 6259 /* 6260 * Set the IO_CONT flag, so that if this I/O gets passed to 6261 * ctl_config_write_done(), it'll get passed back to 6262 * ctl_do_mode_select() for further processing, or completion if 6263 * we're all done. 6264 */ 6265 ctsio->io_hdr.flags |= CTL_FLAG_IO_CONT; 6266 ctsio->io_cont = ctl_do_mode_select; 6267 6268 modepage_info = (union ctl_modepage_info *) 6269 ctsio->io_hdr.ctl_private[CTL_PRIV_MODEPAGE].bytes; 6270 memset(modepage_info, 0, sizeof(*modepage_info)); 6271 modepage_info->header.len_left = param_len - header_size - bd_len; 6272 modepage_info->header.len_used = header_size + bd_len; 6273 6274 return (ctl_do_mode_select((union ctl_io *)ctsio)); 6275} 6276 6277int 6278ctl_mode_sense(struct ctl_scsiio *ctsio) 6279{ 6280 struct ctl_lun *lun; 6281 int pc, page_code, dbd, llba, subpage; 6282 int alloc_len, page_len, header_len, total_len; 6283 struct scsi_mode_block_descr *block_desc; 6284 struct ctl_page_index *page_index; 6285 6286 dbd = 0; 6287 llba = 0; 6288 block_desc = NULL; 6289 6290 CTL_DEBUG_PRINT(("ctl_mode_sense\n")); 6291 6292 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6293 switch (ctsio->cdb[0]) { 6294 case MODE_SENSE_6: { 6295 struct scsi_mode_sense_6 *cdb; 6296 6297 cdb = (struct scsi_mode_sense_6 *)ctsio->cdb; 6298 6299 header_len = sizeof(struct scsi_mode_hdr_6); 6300 if (cdb->byte2 & SMS_DBD) 6301 dbd = 1; 6302 else 6303 header_len += sizeof(struct scsi_mode_block_descr); 6304 6305 pc = (cdb->page & SMS_PAGE_CTRL_MASK) >> 6; 6306 page_code = cdb->page & SMS_PAGE_CODE; 6307 subpage = cdb->subpage; 6308 alloc_len = cdb->length; 6309 break; 6310 } 6311 case MODE_SENSE_10: { 6312 struct scsi_mode_sense_10 *cdb; 6313 6314 cdb = (struct scsi_mode_sense_10 *)ctsio->cdb; 6315 6316 header_len = sizeof(struct scsi_mode_hdr_10); 6317 6318 if (cdb->byte2 & SMS_DBD) 6319 dbd = 1; 6320 else 6321 header_len += sizeof(struct scsi_mode_block_descr); 6322 if (cdb->byte2 & SMS10_LLBAA) 6323 llba = 1; 6324 pc = (cdb->page & SMS_PAGE_CTRL_MASK) >> 6; 6325 page_code = cdb->page & SMS_PAGE_CODE; 6326 subpage = cdb->subpage; 6327 alloc_len = scsi_2btoul(cdb->length); 6328 break; 6329 } 6330 default: 6331 ctl_set_invalid_opcode(ctsio); 6332 ctl_done((union ctl_io *)ctsio); 6333 return (CTL_RETVAL_COMPLETE); 6334 break; /* NOTREACHED */ 6335 } 6336 6337 /* 6338 * We have to make a first pass through to calculate the size of 6339 * the pages that match the user's query. Then we allocate enough 6340 * memory to hold it, and actually copy the data into the buffer. 6341 */ 6342 switch (page_code) { 6343 case SMS_ALL_PAGES_PAGE: { 6344 u_int i; 6345 6346 page_len = 0; 6347 6348 /* 6349 * At the moment, values other than 0 and 0xff here are 6350 * reserved according to SPC-3. 6351 */ 6352 if ((subpage != SMS_SUBPAGE_PAGE_0) 6353 && (subpage != SMS_SUBPAGE_ALL)) { 6354 ctl_set_invalid_field(ctsio, 6355 /*sks_valid*/ 1, 6356 /*command*/ 1, 6357 /*field*/ 3, 6358 /*bit_valid*/ 0, 6359 /*bit*/ 0); 6360 ctl_done((union ctl_io *)ctsio); 6361 return (CTL_RETVAL_COMPLETE); 6362 } 6363 6364 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6365 page_index = &lun->mode_pages.index[i]; 6366 6367 /* Make sure the page is supported for this dev type */ 6368 if (lun->be_lun->lun_type == T_DIRECT && 6369 (page_index->page_flags & CTL_PAGE_FLAG_DIRECT) == 0) 6370 continue; 6371 if (lun->be_lun->lun_type == T_PROCESSOR && 6372 (page_index->page_flags & CTL_PAGE_FLAG_PROC) == 0) 6373 continue; 6374 if (lun->be_lun->lun_type == T_CDROM && 6375 (page_index->page_flags & CTL_PAGE_FLAG_CDROM) == 0) 6376 continue; 6377 6378 /* 6379 * We don't use this subpage if the user didn't 6380 * request all subpages. 6381 */ 6382 if ((page_index->subpage != 0) 6383 && (subpage == SMS_SUBPAGE_PAGE_0)) 6384 continue; 6385 6386#if 0 6387 printf("found page %#x len %d\n", 6388 page_index->page_code & SMPH_PC_MASK, 6389 page_index->page_len); 6390#endif 6391 page_len += page_index->page_len; 6392 } 6393 break; 6394 } 6395 default: { 6396 u_int i; 6397 6398 page_len = 0; 6399 6400 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6401 page_index = &lun->mode_pages.index[i]; 6402 6403 /* Make sure the page is supported for this dev type */ 6404 if (lun->be_lun->lun_type == T_DIRECT && 6405 (page_index->page_flags & CTL_PAGE_FLAG_DIRECT) == 0) 6406 continue; 6407 if (lun->be_lun->lun_type == T_PROCESSOR && 6408 (page_index->page_flags & CTL_PAGE_FLAG_PROC) == 0) 6409 continue; 6410 if (lun->be_lun->lun_type == T_CDROM && 6411 (page_index->page_flags & CTL_PAGE_FLAG_CDROM) == 0) 6412 continue; 6413 6414 /* Look for the right page code */ 6415 if ((page_index->page_code & SMPH_PC_MASK) != page_code) 6416 continue; 6417 6418 /* Look for the right subpage or the subpage wildcard*/ 6419 if ((page_index->subpage != subpage) 6420 && (subpage != SMS_SUBPAGE_ALL)) 6421 continue; 6422 6423#if 0 6424 printf("found page %#x len %d\n", 6425 page_index->page_code & SMPH_PC_MASK, 6426 page_index->page_len); 6427#endif 6428 6429 page_len += page_index->page_len; 6430 } 6431 6432 if (page_len == 0) { 6433 ctl_set_invalid_field(ctsio, 6434 /*sks_valid*/ 1, 6435 /*command*/ 1, 6436 /*field*/ 2, 6437 /*bit_valid*/ 1, 6438 /*bit*/ 5); 6439 ctl_done((union ctl_io *)ctsio); 6440 return (CTL_RETVAL_COMPLETE); 6441 } 6442 break; 6443 } 6444 } 6445 6446 total_len = header_len + page_len; 6447#if 0 6448 printf("header_len = %d, page_len = %d, total_len = %d\n", 6449 header_len, page_len, total_len); 6450#endif 6451 6452 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 6453 ctsio->kern_sg_entries = 0; 6454 ctsio->kern_data_resid = 0; 6455 ctsio->kern_rel_offset = 0; 6456 if (total_len < alloc_len) { 6457 ctsio->residual = alloc_len - total_len; 6458 ctsio->kern_data_len = total_len; 6459 ctsio->kern_total_len = total_len; 6460 } else { 6461 ctsio->residual = 0; 6462 ctsio->kern_data_len = alloc_len; 6463 ctsio->kern_total_len = alloc_len; 6464 } 6465 6466 switch (ctsio->cdb[0]) { 6467 case MODE_SENSE_6: { 6468 struct scsi_mode_hdr_6 *header; 6469 6470 header = (struct scsi_mode_hdr_6 *)ctsio->kern_data_ptr; 6471 6472 header->datalen = MIN(total_len - 1, 254); 6473 if (lun->be_lun->lun_type == T_DIRECT) { 6474 header->dev_specific = 0x10; /* DPOFUA */ 6475 if ((lun->be_lun->flags & CTL_LUN_FLAG_READONLY) || 6476 (lun->MODE_CTRL.eca_and_aen & SCP_SWP) != 0) 6477 header->dev_specific |= 0x80; /* WP */ 6478 } 6479 if (dbd) 6480 header->block_descr_len = 0; 6481 else 6482 header->block_descr_len = 6483 sizeof(struct scsi_mode_block_descr); 6484 block_desc = (struct scsi_mode_block_descr *)&header[1]; 6485 break; 6486 } 6487 case MODE_SENSE_10: { 6488 struct scsi_mode_hdr_10 *header; 6489 int datalen; 6490 6491 header = (struct scsi_mode_hdr_10 *)ctsio->kern_data_ptr; 6492 6493 datalen = MIN(total_len - 2, 65533); 6494 scsi_ulto2b(datalen, header->datalen); 6495 if (lun->be_lun->lun_type == T_DIRECT) { 6496 header->dev_specific = 0x10; /* DPOFUA */ 6497 if ((lun->be_lun->flags & CTL_LUN_FLAG_READONLY) || 6498 (lun->MODE_CTRL.eca_and_aen & SCP_SWP) != 0) 6499 header->dev_specific |= 0x80; /* WP */ 6500 } 6501 if (dbd) 6502 scsi_ulto2b(0, header->block_descr_len); 6503 else 6504 scsi_ulto2b(sizeof(struct scsi_mode_block_descr), 6505 header->block_descr_len); 6506 block_desc = (struct scsi_mode_block_descr *)&header[1]; 6507 break; 6508 } 6509 default: 6510 panic("%s: Invalid CDB type %#x", __func__, ctsio->cdb[0]); 6511 } 6512 6513 /* 6514 * If we've got a disk, use its blocksize in the block 6515 * descriptor. Otherwise, just set it to 0. 6516 */ 6517 if (dbd == 0) { 6518 if (lun->be_lun->lun_type == T_DIRECT) 6519 scsi_ulto3b(lun->be_lun->blocksize, 6520 block_desc->block_len); 6521 else 6522 scsi_ulto3b(0, block_desc->block_len); 6523 } 6524 6525 switch (page_code) { 6526 case SMS_ALL_PAGES_PAGE: { 6527 int i, data_used; 6528 6529 data_used = header_len; 6530 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6531 struct ctl_page_index *page_index; 6532 6533 page_index = &lun->mode_pages.index[i]; 6534 if (lun->be_lun->lun_type == T_DIRECT && 6535 (page_index->page_flags & CTL_PAGE_FLAG_DIRECT) == 0) 6536 continue; 6537 if (lun->be_lun->lun_type == T_PROCESSOR && 6538 (page_index->page_flags & CTL_PAGE_FLAG_PROC) == 0) 6539 continue; 6540 if (lun->be_lun->lun_type == T_CDROM && 6541 (page_index->page_flags & CTL_PAGE_FLAG_CDROM) == 0) 6542 continue; 6543 6544 /* 6545 * We don't use this subpage if the user didn't 6546 * request all subpages. We already checked (above) 6547 * to make sure the user only specified a subpage 6548 * of 0 or 0xff in the SMS_ALL_PAGES_PAGE case. 6549 */ 6550 if ((page_index->subpage != 0) 6551 && (subpage == SMS_SUBPAGE_PAGE_0)) 6552 continue; 6553 6554 /* 6555 * Call the handler, if it exists, to update the 6556 * page to the latest values. 6557 */ 6558 if (page_index->sense_handler != NULL) 6559 page_index->sense_handler(ctsio, page_index,pc); 6560 6561 memcpy(ctsio->kern_data_ptr + data_used, 6562 page_index->page_data + 6563 (page_index->page_len * pc), 6564 page_index->page_len); 6565 data_used += page_index->page_len; 6566 } 6567 break; 6568 } 6569 default: { 6570 int i, data_used; 6571 6572 data_used = header_len; 6573 6574 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6575 struct ctl_page_index *page_index; 6576 6577 page_index = &lun->mode_pages.index[i]; 6578 6579 /* Look for the right page code */ 6580 if ((page_index->page_code & SMPH_PC_MASK) != page_code) 6581 continue; 6582 6583 /* Look for the right subpage or the subpage wildcard*/ 6584 if ((page_index->subpage != subpage) 6585 && (subpage != SMS_SUBPAGE_ALL)) 6586 continue; 6587 6588 /* Make sure the page is supported for this dev type */ 6589 if (lun->be_lun->lun_type == T_DIRECT && 6590 (page_index->page_flags & CTL_PAGE_FLAG_DIRECT) == 0) 6591 continue; 6592 if (lun->be_lun->lun_type == T_PROCESSOR && 6593 (page_index->page_flags & CTL_PAGE_FLAG_PROC) == 0) 6594 continue; 6595 if (lun->be_lun->lun_type == T_CDROM && 6596 (page_index->page_flags & CTL_PAGE_FLAG_CDROM) == 0) 6597 continue; 6598 6599 /* 6600 * Call the handler, if it exists, to update the 6601 * page to the latest values. 6602 */ 6603 if (page_index->sense_handler != NULL) 6604 page_index->sense_handler(ctsio, page_index,pc); 6605 6606 memcpy(ctsio->kern_data_ptr + data_used, 6607 page_index->page_data + 6608 (page_index->page_len * pc), 6609 page_index->page_len); 6610 data_used += page_index->page_len; 6611 } 6612 break; 6613 } 6614 } 6615 6616 ctl_set_success(ctsio); 6617 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6618 ctsio->be_move_done = ctl_config_move_done; 6619 ctl_datamove((union ctl_io *)ctsio); 6620 return (CTL_RETVAL_COMPLETE); 6621} 6622 6623int 6624ctl_lbp_log_sense_handler(struct ctl_scsiio *ctsio, 6625 struct ctl_page_index *page_index, 6626 int pc) 6627{ 6628 struct ctl_lun *lun; 6629 struct scsi_log_param_header *phdr; 6630 uint8_t *data; 6631 uint64_t val; 6632 6633 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6634 data = page_index->page_data; 6635 6636 if (lun->backend->lun_attr != NULL && 6637 (val = lun->backend->lun_attr(lun->be_lun->be_lun, "blocksavail")) 6638 != UINT64_MAX) { 6639 phdr = (struct scsi_log_param_header *)data; 6640 scsi_ulto2b(0x0001, phdr->param_code); 6641 phdr->param_control = SLP_LBIN | SLP_LP; 6642 phdr->param_len = 8; 6643 data = (uint8_t *)(phdr + 1); 6644 scsi_ulto4b(val >> CTL_LBP_EXPONENT, data); 6645 data[4] = 0x02; /* per-pool */ 6646 data += phdr->param_len; 6647 } 6648 6649 if (lun->backend->lun_attr != NULL && 6650 (val = lun->backend->lun_attr(lun->be_lun->be_lun, "blocksused")) 6651 != UINT64_MAX) { 6652 phdr = (struct scsi_log_param_header *)data; 6653 scsi_ulto2b(0x0002, phdr->param_code); 6654 phdr->param_control = SLP_LBIN | SLP_LP; 6655 phdr->param_len = 8; 6656 data = (uint8_t *)(phdr + 1); 6657 scsi_ulto4b(val >> CTL_LBP_EXPONENT, data); 6658 data[4] = 0x01; /* per-LUN */ 6659 data += phdr->param_len; 6660 } 6661 6662 if (lun->backend->lun_attr != NULL && 6663 (val = lun->backend->lun_attr(lun->be_lun->be_lun, "poolblocksavail")) 6664 != UINT64_MAX) { 6665 phdr = (struct scsi_log_param_header *)data; 6666 scsi_ulto2b(0x00f1, phdr->param_code); 6667 phdr->param_control = SLP_LBIN | SLP_LP; 6668 phdr->param_len = 8; 6669 data = (uint8_t *)(phdr + 1); 6670 scsi_ulto4b(val >> CTL_LBP_EXPONENT, data); 6671 data[4] = 0x02; /* per-pool */ 6672 data += phdr->param_len; 6673 } 6674 6675 if (lun->backend->lun_attr != NULL && 6676 (val = lun->backend->lun_attr(lun->be_lun->be_lun, "poolblocksused")) 6677 != UINT64_MAX) { 6678 phdr = (struct scsi_log_param_header *)data; 6679 scsi_ulto2b(0x00f2, phdr->param_code); 6680 phdr->param_control = SLP_LBIN | SLP_LP; 6681 phdr->param_len = 8; 6682 data = (uint8_t *)(phdr + 1); 6683 scsi_ulto4b(val >> CTL_LBP_EXPONENT, data); 6684 data[4] = 0x02; /* per-pool */ 6685 data += phdr->param_len; 6686 } 6687 6688 page_index->page_len = data - page_index->page_data; 6689 return (0); 6690} 6691 6692int 6693ctl_sap_log_sense_handler(struct ctl_scsiio *ctsio, 6694 struct ctl_page_index *page_index, 6695 int pc) 6696{ 6697 struct ctl_lun *lun; 6698 struct stat_page *data; 6699 uint64_t rn, wn, rb, wb; 6700 struct bintime rt, wt; 6701 int i; 6702 6703 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6704 data = (struct stat_page *)page_index->page_data; 6705 6706 scsi_ulto2b(SLP_SAP, data->sap.hdr.param_code); 6707 data->sap.hdr.param_control = SLP_LBIN; 6708 data->sap.hdr.param_len = sizeof(struct scsi_log_stat_and_perf) - 6709 sizeof(struct scsi_log_param_header); 6710 rn = wn = rb = wb = 0; 6711 bintime_clear(&rt); 6712 bintime_clear(&wt); 6713 for (i = 0; i < CTL_MAX_PORTS; i++) { 6714 rn += lun->stats.ports[i].operations[CTL_STATS_READ]; 6715 wn += lun->stats.ports[i].operations[CTL_STATS_WRITE]; 6716 rb += lun->stats.ports[i].bytes[CTL_STATS_READ]; 6717 wb += lun->stats.ports[i].bytes[CTL_STATS_WRITE]; 6718 bintime_add(&rt, &lun->stats.ports[i].time[CTL_STATS_READ]); 6719 bintime_add(&wt, &lun->stats.ports[i].time[CTL_STATS_WRITE]); 6720 } 6721 scsi_u64to8b(rn, data->sap.read_num); 6722 scsi_u64to8b(wn, data->sap.write_num); 6723 if (lun->stats.blocksize > 0) { 6724 scsi_u64to8b(wb / lun->stats.blocksize, 6725 data->sap.recvieved_lba); 6726 scsi_u64to8b(rb / lun->stats.blocksize, 6727 data->sap.transmitted_lba); 6728 } 6729 scsi_u64to8b((uint64_t)rt.sec * 1000 + rt.frac / (UINT64_MAX / 1000), 6730 data->sap.read_int); 6731 scsi_u64to8b((uint64_t)wt.sec * 1000 + wt.frac / (UINT64_MAX / 1000), 6732 data->sap.write_int); 6733 scsi_u64to8b(0, data->sap.weighted_num); 6734 scsi_u64to8b(0, data->sap.weighted_int); 6735 scsi_ulto2b(SLP_IT, data->it.hdr.param_code); 6736 data->it.hdr.param_control = SLP_LBIN; 6737 data->it.hdr.param_len = sizeof(struct scsi_log_idle_time) - 6738 sizeof(struct scsi_log_param_header); 6739#ifdef CTL_TIME_IO 6740 scsi_u64to8b(lun->idle_time / SBT_1MS, data->it.idle_int); 6741#endif 6742 scsi_ulto2b(SLP_TI, data->ti.hdr.param_code); 6743 data->it.hdr.param_control = SLP_LBIN; 6744 data->ti.hdr.param_len = sizeof(struct scsi_log_time_interval) - 6745 sizeof(struct scsi_log_param_header); 6746 scsi_ulto4b(3, data->ti.exponent); 6747 scsi_ulto4b(1, data->ti.integer); 6748 return (0); 6749} 6750 6751int 6752ctl_ie_log_sense_handler(struct ctl_scsiio *ctsio, 6753 struct ctl_page_index *page_index, 6754 int pc) 6755{ 6756 struct ctl_lun *lun; 6757 struct scsi_log_informational_exceptions *data; 6758 6759 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6760 data = (struct scsi_log_informational_exceptions *)page_index->page_data; 6761 6762 scsi_ulto2b(SLP_IE_GEN, data->hdr.param_code); 6763 data->hdr.param_control = SLP_LBIN; 6764 data->hdr.param_len = sizeof(struct scsi_log_informational_exceptions) - 6765 sizeof(struct scsi_log_param_header); 6766 data->ie_asc = lun->ie_asc; 6767 data->ie_ascq = lun->ie_ascq; 6768 data->temperature = 0xff; 6769 return (0); 6770} 6771 6772int 6773ctl_log_sense(struct ctl_scsiio *ctsio) 6774{ 6775 struct ctl_lun *lun; 6776 int i, pc, page_code, subpage; 6777 int alloc_len, total_len; 6778 struct ctl_page_index *page_index; 6779 struct scsi_log_sense *cdb; 6780 struct scsi_log_header *header; 6781 6782 CTL_DEBUG_PRINT(("ctl_log_sense\n")); 6783 6784 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6785 cdb = (struct scsi_log_sense *)ctsio->cdb; 6786 pc = (cdb->page & SLS_PAGE_CTRL_MASK) >> 6; 6787 page_code = cdb->page & SLS_PAGE_CODE; 6788 subpage = cdb->subpage; 6789 alloc_len = scsi_2btoul(cdb->length); 6790 6791 page_index = NULL; 6792 for (i = 0; i < CTL_NUM_LOG_PAGES; i++) { 6793 page_index = &lun->log_pages.index[i]; 6794 6795 /* Look for the right page code */ 6796 if ((page_index->page_code & SL_PAGE_CODE) != page_code) 6797 continue; 6798 6799 /* Look for the right subpage or the subpage wildcard*/ 6800 if (page_index->subpage != subpage) 6801 continue; 6802 6803 break; 6804 } 6805 if (i >= CTL_NUM_LOG_PAGES) { 6806 ctl_set_invalid_field(ctsio, 6807 /*sks_valid*/ 1, 6808 /*command*/ 1, 6809 /*field*/ 2, 6810 /*bit_valid*/ 0, 6811 /*bit*/ 0); 6812 ctl_done((union ctl_io *)ctsio); 6813 return (CTL_RETVAL_COMPLETE); 6814 } 6815 6816 total_len = sizeof(struct scsi_log_header) + page_index->page_len; 6817 6818 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 6819 ctsio->kern_sg_entries = 0; 6820 ctsio->kern_data_resid = 0; 6821 ctsio->kern_rel_offset = 0; 6822 if (total_len < alloc_len) { 6823 ctsio->residual = alloc_len - total_len; 6824 ctsio->kern_data_len = total_len; 6825 ctsio->kern_total_len = total_len; 6826 } else { 6827 ctsio->residual = 0; 6828 ctsio->kern_data_len = alloc_len; 6829 ctsio->kern_total_len = alloc_len; 6830 } 6831 6832 header = (struct scsi_log_header *)ctsio->kern_data_ptr; 6833 header->page = page_index->page_code; 6834 if (page_index->page_code == SLS_LOGICAL_BLOCK_PROVISIONING) 6835 header->page |= SL_DS; 6836 if (page_index->subpage) { 6837 header->page |= SL_SPF; 6838 header->subpage = page_index->subpage; 6839 } 6840 scsi_ulto2b(page_index->page_len, header->datalen); 6841 6842 /* 6843 * Call the handler, if it exists, to update the 6844 * page to the latest values. 6845 */ 6846 if (page_index->sense_handler != NULL) 6847 page_index->sense_handler(ctsio, page_index, pc); 6848 6849 memcpy(header + 1, page_index->page_data, page_index->page_len); 6850 6851 ctl_set_success(ctsio); 6852 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6853 ctsio->be_move_done = ctl_config_move_done; 6854 ctl_datamove((union ctl_io *)ctsio); 6855 return (CTL_RETVAL_COMPLETE); 6856} 6857 6858int 6859ctl_read_capacity(struct ctl_scsiio *ctsio) 6860{ 6861 struct scsi_read_capacity *cdb; 6862 struct scsi_read_capacity_data *data; 6863 struct ctl_lun *lun; 6864 uint32_t lba; 6865 6866 CTL_DEBUG_PRINT(("ctl_read_capacity\n")); 6867 6868 cdb = (struct scsi_read_capacity *)ctsio->cdb; 6869 6870 lba = scsi_4btoul(cdb->addr); 6871 if (((cdb->pmi & SRC_PMI) == 0) 6872 && (lba != 0)) { 6873 ctl_set_invalid_field(/*ctsio*/ ctsio, 6874 /*sks_valid*/ 1, 6875 /*command*/ 1, 6876 /*field*/ 2, 6877 /*bit_valid*/ 0, 6878 /*bit*/ 0); 6879 ctl_done((union ctl_io *)ctsio); 6880 return (CTL_RETVAL_COMPLETE); 6881 } 6882 6883 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6884 6885 ctsio->kern_data_ptr = malloc(sizeof(*data), M_CTL, M_WAITOK | M_ZERO); 6886 data = (struct scsi_read_capacity_data *)ctsio->kern_data_ptr; 6887 ctsio->residual = 0; 6888 ctsio->kern_data_len = sizeof(*data); 6889 ctsio->kern_total_len = sizeof(*data); 6890 ctsio->kern_data_resid = 0; 6891 ctsio->kern_rel_offset = 0; 6892 ctsio->kern_sg_entries = 0; 6893 6894 /* 6895 * If the maximum LBA is greater than 0xfffffffe, the user must 6896 * issue a SERVICE ACTION IN (16) command, with the read capacity 6897 * serivce action set. 6898 */ 6899 if (lun->be_lun->maxlba > 0xfffffffe) 6900 scsi_ulto4b(0xffffffff, data->addr); 6901 else 6902 scsi_ulto4b(lun->be_lun->maxlba, data->addr); 6903 6904 /* 6905 * XXX KDM this may not be 512 bytes... 6906 */ 6907 scsi_ulto4b(lun->be_lun->blocksize, data->length); 6908 6909 ctl_set_success(ctsio); 6910 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6911 ctsio->be_move_done = ctl_config_move_done; 6912 ctl_datamove((union ctl_io *)ctsio); 6913 return (CTL_RETVAL_COMPLETE); 6914} 6915 6916int 6917ctl_read_capacity_16(struct ctl_scsiio *ctsio) 6918{ 6919 struct scsi_read_capacity_16 *cdb; 6920 struct scsi_read_capacity_data_long *data; 6921 struct ctl_lun *lun; 6922 uint64_t lba; 6923 uint32_t alloc_len; 6924 6925 CTL_DEBUG_PRINT(("ctl_read_capacity_16\n")); 6926 6927 cdb = (struct scsi_read_capacity_16 *)ctsio->cdb; 6928 6929 alloc_len = scsi_4btoul(cdb->alloc_len); 6930 lba = scsi_8btou64(cdb->addr); 6931 6932 if ((cdb->reladr & SRC16_PMI) 6933 && (lba != 0)) { 6934 ctl_set_invalid_field(/*ctsio*/ ctsio, 6935 /*sks_valid*/ 1, 6936 /*command*/ 1, 6937 /*field*/ 2, 6938 /*bit_valid*/ 0, 6939 /*bit*/ 0); 6940 ctl_done((union ctl_io *)ctsio); 6941 return (CTL_RETVAL_COMPLETE); 6942 } 6943 6944 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6945 6946 ctsio->kern_data_ptr = malloc(sizeof(*data), M_CTL, M_WAITOK | M_ZERO); 6947 data = (struct scsi_read_capacity_data_long *)ctsio->kern_data_ptr; 6948 6949 if (sizeof(*data) < alloc_len) { 6950 ctsio->residual = alloc_len - sizeof(*data); 6951 ctsio->kern_data_len = sizeof(*data); 6952 ctsio->kern_total_len = sizeof(*data); 6953 } else { 6954 ctsio->residual = 0; 6955 ctsio->kern_data_len = alloc_len; 6956 ctsio->kern_total_len = alloc_len; 6957 } 6958 ctsio->kern_data_resid = 0; 6959 ctsio->kern_rel_offset = 0; 6960 ctsio->kern_sg_entries = 0; 6961 6962 scsi_u64to8b(lun->be_lun->maxlba, data->addr); 6963 /* XXX KDM this may not be 512 bytes... */ 6964 scsi_ulto4b(lun->be_lun->blocksize, data->length); 6965 data->prot_lbppbe = lun->be_lun->pblockexp & SRC16_LBPPBE; 6966 scsi_ulto2b(lun->be_lun->pblockoff & SRC16_LALBA_A, data->lalba_lbp); 6967 if (lun->be_lun->flags & CTL_LUN_FLAG_UNMAP) 6968 data->lalba_lbp[0] |= SRC16_LBPME | SRC16_LBPRZ; 6969 6970 ctl_set_success(ctsio); 6971 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6972 ctsio->be_move_done = ctl_config_move_done; 6973 ctl_datamove((union ctl_io *)ctsio); 6974 return (CTL_RETVAL_COMPLETE); 6975} 6976 6977int 6978ctl_get_lba_status(struct ctl_scsiio *ctsio) 6979{ 6980 struct scsi_get_lba_status *cdb; 6981 struct scsi_get_lba_status_data *data; 6982 struct ctl_lun *lun; 6983 struct ctl_lba_len_flags *lbalen; 6984 uint64_t lba; 6985 uint32_t alloc_len, total_len; 6986 int retval; 6987 6988 CTL_DEBUG_PRINT(("ctl_get_lba_status\n")); 6989 6990 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6991 cdb = (struct scsi_get_lba_status *)ctsio->cdb; 6992 lba = scsi_8btou64(cdb->addr); 6993 alloc_len = scsi_4btoul(cdb->alloc_len); 6994 6995 if (lba > lun->be_lun->maxlba) { 6996 ctl_set_lba_out_of_range(ctsio, lba); 6997 ctl_done((union ctl_io *)ctsio); 6998 return (CTL_RETVAL_COMPLETE); 6999 } 7000 7001 total_len = sizeof(*data) + sizeof(data->descr[0]); 7002 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7003 data = (struct scsi_get_lba_status_data *)ctsio->kern_data_ptr; 7004 7005 if (total_len < alloc_len) { 7006 ctsio->residual = alloc_len - total_len; 7007 ctsio->kern_data_len = total_len; 7008 ctsio->kern_total_len = total_len; 7009 } else { 7010 ctsio->residual = 0; 7011 ctsio->kern_data_len = alloc_len; 7012 ctsio->kern_total_len = alloc_len; 7013 } 7014 ctsio->kern_data_resid = 0; 7015 ctsio->kern_rel_offset = 0; 7016 ctsio->kern_sg_entries = 0; 7017 7018 /* Fill dummy data in case backend can't tell anything. */ 7019 scsi_ulto4b(4 + sizeof(data->descr[0]), data->length); 7020 scsi_u64to8b(lba, data->descr[0].addr); 7021 scsi_ulto4b(MIN(UINT32_MAX, lun->be_lun->maxlba + 1 - lba), 7022 data->descr[0].length); 7023 data->descr[0].status = 0; /* Mapped or unknown. */ 7024 7025 ctl_set_success(ctsio); 7026 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7027 ctsio->be_move_done = ctl_config_move_done; 7028 7029 lbalen = (struct ctl_lba_len_flags *)&ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 7030 lbalen->lba = lba; 7031 lbalen->len = total_len; 7032 lbalen->flags = 0; 7033 retval = lun->backend->config_read((union ctl_io *)ctsio); 7034 return (CTL_RETVAL_COMPLETE); 7035} 7036 7037int 7038ctl_read_defect(struct ctl_scsiio *ctsio) 7039{ 7040 struct scsi_read_defect_data_10 *ccb10; 7041 struct scsi_read_defect_data_12 *ccb12; 7042 struct scsi_read_defect_data_hdr_10 *data10; 7043 struct scsi_read_defect_data_hdr_12 *data12; 7044 uint32_t alloc_len, data_len; 7045 uint8_t format; 7046 7047 CTL_DEBUG_PRINT(("ctl_read_defect\n")); 7048 7049 if (ctsio->cdb[0] == READ_DEFECT_DATA_10) { 7050 ccb10 = (struct scsi_read_defect_data_10 *)&ctsio->cdb; 7051 format = ccb10->format; 7052 alloc_len = scsi_2btoul(ccb10->alloc_length); 7053 data_len = sizeof(*data10); 7054 } else { 7055 ccb12 = (struct scsi_read_defect_data_12 *)&ctsio->cdb; 7056 format = ccb12->format; 7057 alloc_len = scsi_4btoul(ccb12->alloc_length); 7058 data_len = sizeof(*data12); 7059 } 7060 if (alloc_len == 0) { 7061 ctl_set_success(ctsio); 7062 ctl_done((union ctl_io *)ctsio); 7063 return (CTL_RETVAL_COMPLETE); 7064 } 7065 7066 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 7067 if (data_len < alloc_len) { 7068 ctsio->residual = alloc_len - data_len; 7069 ctsio->kern_data_len = data_len; 7070 ctsio->kern_total_len = data_len; 7071 } else { 7072 ctsio->residual = 0; 7073 ctsio->kern_data_len = alloc_len; 7074 ctsio->kern_total_len = alloc_len; 7075 } 7076 ctsio->kern_data_resid = 0; 7077 ctsio->kern_rel_offset = 0; 7078 ctsio->kern_sg_entries = 0; 7079 7080 if (ctsio->cdb[0] == READ_DEFECT_DATA_10) { 7081 data10 = (struct scsi_read_defect_data_hdr_10 *) 7082 ctsio->kern_data_ptr; 7083 data10->format = format; 7084 scsi_ulto2b(0, data10->length); 7085 } else { 7086 data12 = (struct scsi_read_defect_data_hdr_12 *) 7087 ctsio->kern_data_ptr; 7088 data12->format = format; 7089 scsi_ulto2b(0, data12->generation); 7090 scsi_ulto4b(0, data12->length); 7091 } 7092 7093 ctl_set_success(ctsio); 7094 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7095 ctsio->be_move_done = ctl_config_move_done; 7096 ctl_datamove((union ctl_io *)ctsio); 7097 return (CTL_RETVAL_COMPLETE); 7098} 7099 7100int 7101ctl_report_tagret_port_groups(struct ctl_scsiio *ctsio) 7102{ 7103 struct scsi_maintenance_in *cdb; 7104 int retval; 7105 int alloc_len, ext, total_len = 0, g, pc, pg, ts, os; 7106 int num_ha_groups, num_target_ports, shared_group; 7107 struct ctl_lun *lun; 7108 struct ctl_softc *softc; 7109 struct ctl_port *port; 7110 struct scsi_target_group_data *rtg_ptr; 7111 struct scsi_target_group_data_extended *rtg_ext_ptr; 7112 struct scsi_target_port_group_descriptor *tpg_desc; 7113 7114 CTL_DEBUG_PRINT(("ctl_report_tagret_port_groups\n")); 7115 7116 cdb = (struct scsi_maintenance_in *)ctsio->cdb; 7117 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7118 softc = lun->ctl_softc; 7119 7120 retval = CTL_RETVAL_COMPLETE; 7121 7122 switch (cdb->byte2 & STG_PDF_MASK) { 7123 case STG_PDF_LENGTH: 7124 ext = 0; 7125 break; 7126 case STG_PDF_EXTENDED: 7127 ext = 1; 7128 break; 7129 default: 7130 ctl_set_invalid_field(/*ctsio*/ ctsio, 7131 /*sks_valid*/ 1, 7132 /*command*/ 1, 7133 /*field*/ 2, 7134 /*bit_valid*/ 1, 7135 /*bit*/ 5); 7136 ctl_done((union ctl_io *)ctsio); 7137 return(retval); 7138 } 7139 7140 num_target_ports = 0; 7141 shared_group = (softc->is_single != 0); 7142 mtx_lock(&softc->ctl_lock); 7143 STAILQ_FOREACH(port, &softc->port_list, links) { 7144 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 7145 continue; 7146 if (ctl_lun_map_to_port(port, lun->lun) == UINT32_MAX) 7147 continue; 7148 num_target_ports++; 7149 if (port->status & CTL_PORT_STATUS_HA_SHARED) 7150 shared_group = 1; 7151 } 7152 mtx_unlock(&softc->ctl_lock); 7153 num_ha_groups = (softc->is_single) ? 0 : NUM_HA_SHELVES; 7154 7155 if (ext) 7156 total_len = sizeof(struct scsi_target_group_data_extended); 7157 else 7158 total_len = sizeof(struct scsi_target_group_data); 7159 total_len += sizeof(struct scsi_target_port_group_descriptor) * 7160 (shared_group + num_ha_groups) + 7161 sizeof(struct scsi_target_port_descriptor) * num_target_ports; 7162 7163 alloc_len = scsi_4btoul(cdb->length); 7164 7165 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7166 7167 ctsio->kern_sg_entries = 0; 7168 7169 if (total_len < alloc_len) { 7170 ctsio->residual = alloc_len - total_len; 7171 ctsio->kern_data_len = total_len; 7172 ctsio->kern_total_len = total_len; 7173 } else { 7174 ctsio->residual = 0; 7175 ctsio->kern_data_len = alloc_len; 7176 ctsio->kern_total_len = alloc_len; 7177 } 7178 ctsio->kern_data_resid = 0; 7179 ctsio->kern_rel_offset = 0; 7180 7181 if (ext) { 7182 rtg_ext_ptr = (struct scsi_target_group_data_extended *) 7183 ctsio->kern_data_ptr; 7184 scsi_ulto4b(total_len - 4, rtg_ext_ptr->length); 7185 rtg_ext_ptr->format_type = 0x10; 7186 rtg_ext_ptr->implicit_transition_time = 0; 7187 tpg_desc = &rtg_ext_ptr->groups[0]; 7188 } else { 7189 rtg_ptr = (struct scsi_target_group_data *) 7190 ctsio->kern_data_ptr; 7191 scsi_ulto4b(total_len - 4, rtg_ptr->length); 7192 tpg_desc = &rtg_ptr->groups[0]; 7193 } 7194 7195 mtx_lock(&softc->ctl_lock); 7196 pg = softc->port_min / softc->port_cnt; 7197 if (lun->flags & (CTL_LUN_PRIMARY_SC | CTL_LUN_PEER_SC_PRIMARY)) { 7198 /* Some shelf is known to be primary. */ 7199 if (softc->ha_link == CTL_HA_LINK_OFFLINE) 7200 os = TPG_ASYMMETRIC_ACCESS_UNAVAILABLE; 7201 else if (softc->ha_link == CTL_HA_LINK_UNKNOWN) 7202 os = TPG_ASYMMETRIC_ACCESS_TRANSITIONING; 7203 else if (softc->ha_mode == CTL_HA_MODE_ACT_STBY) 7204 os = TPG_ASYMMETRIC_ACCESS_STANDBY; 7205 else 7206 os = TPG_ASYMMETRIC_ACCESS_NONOPTIMIZED; 7207 if (lun->flags & CTL_LUN_PRIMARY_SC) { 7208 ts = TPG_ASYMMETRIC_ACCESS_OPTIMIZED; 7209 } else { 7210 ts = os; 7211 os = TPG_ASYMMETRIC_ACCESS_OPTIMIZED; 7212 } 7213 } else { 7214 /* No known primary shelf. */ 7215 if (softc->ha_link == CTL_HA_LINK_OFFLINE) { 7216 ts = TPG_ASYMMETRIC_ACCESS_UNAVAILABLE; 7217 os = TPG_ASYMMETRIC_ACCESS_OPTIMIZED; 7218 } else if (softc->ha_link == CTL_HA_LINK_UNKNOWN) { 7219 ts = TPG_ASYMMETRIC_ACCESS_TRANSITIONING; 7220 os = TPG_ASYMMETRIC_ACCESS_OPTIMIZED; 7221 } else { 7222 ts = os = TPG_ASYMMETRIC_ACCESS_TRANSITIONING; 7223 } 7224 } 7225 if (shared_group) { 7226 tpg_desc->pref_state = ts; 7227 tpg_desc->support = TPG_AO_SUP | TPG_AN_SUP | TPG_S_SUP | 7228 TPG_U_SUP | TPG_T_SUP; 7229 scsi_ulto2b(1, tpg_desc->target_port_group); 7230 tpg_desc->status = TPG_IMPLICIT; 7231 pc = 0; 7232 STAILQ_FOREACH(port, &softc->port_list, links) { 7233 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 7234 continue; 7235 if (!softc->is_single && 7236 (port->status & CTL_PORT_STATUS_HA_SHARED) == 0) 7237 continue; 7238 if (ctl_lun_map_to_port(port, lun->lun) == UINT32_MAX) 7239 continue; 7240 scsi_ulto2b(port->targ_port, tpg_desc->descriptors[pc]. 7241 relative_target_port_identifier); 7242 pc++; 7243 } 7244 tpg_desc->target_port_count = pc; 7245 tpg_desc = (struct scsi_target_port_group_descriptor *) 7246 &tpg_desc->descriptors[pc]; 7247 } 7248 for (g = 0; g < num_ha_groups; g++) { 7249 tpg_desc->pref_state = (g == pg) ? ts : os; 7250 tpg_desc->support = TPG_AO_SUP | TPG_AN_SUP | TPG_S_SUP | 7251 TPG_U_SUP | TPG_T_SUP; 7252 scsi_ulto2b(2 + g, tpg_desc->target_port_group); 7253 tpg_desc->status = TPG_IMPLICIT; 7254 pc = 0; 7255 STAILQ_FOREACH(port, &softc->port_list, links) { 7256 if (port->targ_port < g * softc->port_cnt || 7257 port->targ_port >= (g + 1) * softc->port_cnt) 7258 continue; 7259 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 7260 continue; 7261 if (port->status & CTL_PORT_STATUS_HA_SHARED) 7262 continue; 7263 if (ctl_lun_map_to_port(port, lun->lun) == UINT32_MAX) 7264 continue; 7265 scsi_ulto2b(port->targ_port, tpg_desc->descriptors[pc]. 7266 relative_target_port_identifier); 7267 pc++; 7268 } 7269 tpg_desc->target_port_count = pc; 7270 tpg_desc = (struct scsi_target_port_group_descriptor *) 7271 &tpg_desc->descriptors[pc]; 7272 } 7273 mtx_unlock(&softc->ctl_lock); 7274 7275 ctl_set_success(ctsio); 7276 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7277 ctsio->be_move_done = ctl_config_move_done; 7278 ctl_datamove((union ctl_io *)ctsio); 7279 return(retval); 7280} 7281 7282int 7283ctl_report_supported_opcodes(struct ctl_scsiio *ctsio) 7284{ 7285 struct ctl_lun *lun; 7286 struct scsi_report_supported_opcodes *cdb; 7287 const struct ctl_cmd_entry *entry, *sentry; 7288 struct scsi_report_supported_opcodes_all *all; 7289 struct scsi_report_supported_opcodes_descr *descr; 7290 struct scsi_report_supported_opcodes_one *one; 7291 int retval; 7292 int alloc_len, total_len; 7293 int opcode, service_action, i, j, num; 7294 7295 CTL_DEBUG_PRINT(("ctl_report_supported_opcodes\n")); 7296 7297 cdb = (struct scsi_report_supported_opcodes *)ctsio->cdb; 7298 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7299 7300 retval = CTL_RETVAL_COMPLETE; 7301 7302 opcode = cdb->requested_opcode; 7303 service_action = scsi_2btoul(cdb->requested_service_action); 7304 switch (cdb->options & RSO_OPTIONS_MASK) { 7305 case RSO_OPTIONS_ALL: 7306 num = 0; 7307 for (i = 0; i < 256; i++) { 7308 entry = &ctl_cmd_table[i]; 7309 if (entry->flags & CTL_CMD_FLAG_SA5) { 7310 for (j = 0; j < 32; j++) { 7311 sentry = &((const struct ctl_cmd_entry *) 7312 entry->execute)[j]; 7313 if (ctl_cmd_applicable( 7314 lun->be_lun->lun_type, sentry)) 7315 num++; 7316 } 7317 } else { 7318 if (ctl_cmd_applicable(lun->be_lun->lun_type, 7319 entry)) 7320 num++; 7321 } 7322 } 7323 total_len = sizeof(struct scsi_report_supported_opcodes_all) + 7324 num * sizeof(struct scsi_report_supported_opcodes_descr); 7325 break; 7326 case RSO_OPTIONS_OC: 7327 if (ctl_cmd_table[opcode].flags & CTL_CMD_FLAG_SA5) { 7328 ctl_set_invalid_field(/*ctsio*/ ctsio, 7329 /*sks_valid*/ 1, 7330 /*command*/ 1, 7331 /*field*/ 2, 7332 /*bit_valid*/ 1, 7333 /*bit*/ 2); 7334 ctl_done((union ctl_io *)ctsio); 7335 return (CTL_RETVAL_COMPLETE); 7336 } 7337 total_len = sizeof(struct scsi_report_supported_opcodes_one) + 32; 7338 break; 7339 case RSO_OPTIONS_OC_SA: 7340 if ((ctl_cmd_table[opcode].flags & CTL_CMD_FLAG_SA5) == 0 || 7341 service_action >= 32) { 7342 ctl_set_invalid_field(/*ctsio*/ ctsio, 7343 /*sks_valid*/ 1, 7344 /*command*/ 1, 7345 /*field*/ 2, 7346 /*bit_valid*/ 1, 7347 /*bit*/ 2); 7348 ctl_done((union ctl_io *)ctsio); 7349 return (CTL_RETVAL_COMPLETE); 7350 } 7351 /* FALLTHROUGH */ 7352 case RSO_OPTIONS_OC_ASA: 7353 total_len = sizeof(struct scsi_report_supported_opcodes_one) + 32; 7354 break; 7355 default: 7356 ctl_set_invalid_field(/*ctsio*/ ctsio, 7357 /*sks_valid*/ 1, 7358 /*command*/ 1, 7359 /*field*/ 2, 7360 /*bit_valid*/ 1, 7361 /*bit*/ 2); 7362 ctl_done((union ctl_io *)ctsio); 7363 return (CTL_RETVAL_COMPLETE); 7364 } 7365 7366 alloc_len = scsi_4btoul(cdb->length); 7367 7368 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7369 7370 ctsio->kern_sg_entries = 0; 7371 7372 if (total_len < alloc_len) { 7373 ctsio->residual = alloc_len - total_len; 7374 ctsio->kern_data_len = total_len; 7375 ctsio->kern_total_len = total_len; 7376 } else { 7377 ctsio->residual = 0; 7378 ctsio->kern_data_len = alloc_len; 7379 ctsio->kern_total_len = alloc_len; 7380 } 7381 ctsio->kern_data_resid = 0; 7382 ctsio->kern_rel_offset = 0; 7383 7384 switch (cdb->options & RSO_OPTIONS_MASK) { 7385 case RSO_OPTIONS_ALL: 7386 all = (struct scsi_report_supported_opcodes_all *) 7387 ctsio->kern_data_ptr; 7388 num = 0; 7389 for (i = 0; i < 256; i++) { 7390 entry = &ctl_cmd_table[i]; 7391 if (entry->flags & CTL_CMD_FLAG_SA5) { 7392 for (j = 0; j < 32; j++) { 7393 sentry = &((const struct ctl_cmd_entry *) 7394 entry->execute)[j]; 7395 if (!ctl_cmd_applicable( 7396 lun->be_lun->lun_type, sentry)) 7397 continue; 7398 descr = &all->descr[num++]; 7399 descr->opcode = i; 7400 scsi_ulto2b(j, descr->service_action); 7401 descr->flags = RSO_SERVACTV; 7402 scsi_ulto2b(sentry->length, 7403 descr->cdb_length); 7404 } 7405 } else { 7406 if (!ctl_cmd_applicable(lun->be_lun->lun_type, 7407 entry)) 7408 continue; 7409 descr = &all->descr[num++]; 7410 descr->opcode = i; 7411 scsi_ulto2b(0, descr->service_action); 7412 descr->flags = 0; 7413 scsi_ulto2b(entry->length, descr->cdb_length); 7414 } 7415 } 7416 scsi_ulto4b( 7417 num * sizeof(struct scsi_report_supported_opcodes_descr), 7418 all->length); 7419 break; 7420 case RSO_OPTIONS_OC: 7421 one = (struct scsi_report_supported_opcodes_one *) 7422 ctsio->kern_data_ptr; 7423 entry = &ctl_cmd_table[opcode]; 7424 goto fill_one; 7425 case RSO_OPTIONS_OC_SA: 7426 one = (struct scsi_report_supported_opcodes_one *) 7427 ctsio->kern_data_ptr; 7428 entry = &ctl_cmd_table[opcode]; 7429 entry = &((const struct ctl_cmd_entry *) 7430 entry->execute)[service_action]; 7431fill_one: 7432 if (ctl_cmd_applicable(lun->be_lun->lun_type, entry)) { 7433 one->support = 3; 7434 scsi_ulto2b(entry->length, one->cdb_length); 7435 one->cdb_usage[0] = opcode; 7436 memcpy(&one->cdb_usage[1], entry->usage, 7437 entry->length - 1); 7438 } else 7439 one->support = 1; 7440 break; 7441 case RSO_OPTIONS_OC_ASA: 7442 one = (struct scsi_report_supported_opcodes_one *) 7443 ctsio->kern_data_ptr; 7444 entry = &ctl_cmd_table[opcode]; 7445 if (entry->flags & CTL_CMD_FLAG_SA5) { 7446 entry = &((const struct ctl_cmd_entry *) 7447 entry->execute)[service_action]; 7448 } else if (service_action != 0) { 7449 one->support = 1; 7450 break; 7451 } 7452 goto fill_one; 7453 } 7454 7455 ctl_set_success(ctsio); 7456 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7457 ctsio->be_move_done = ctl_config_move_done; 7458 ctl_datamove((union ctl_io *)ctsio); 7459 return(retval); 7460} 7461 7462int 7463ctl_report_supported_tmf(struct ctl_scsiio *ctsio) 7464{ 7465 struct scsi_report_supported_tmf *cdb; 7466 struct scsi_report_supported_tmf_ext_data *data; 7467 int retval; 7468 int alloc_len, total_len; 7469 7470 CTL_DEBUG_PRINT(("ctl_report_supported_tmf\n")); 7471 7472 cdb = (struct scsi_report_supported_tmf *)ctsio->cdb; 7473 7474 retval = CTL_RETVAL_COMPLETE; 7475 7476 if (cdb->options & RST_REPD) 7477 total_len = sizeof(struct scsi_report_supported_tmf_ext_data); 7478 else 7479 total_len = sizeof(struct scsi_report_supported_tmf_data); 7480 alloc_len = scsi_4btoul(cdb->length); 7481 7482 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7483 7484 ctsio->kern_sg_entries = 0; 7485 7486 if (total_len < alloc_len) { 7487 ctsio->residual = alloc_len - total_len; 7488 ctsio->kern_data_len = total_len; 7489 ctsio->kern_total_len = total_len; 7490 } else { 7491 ctsio->residual = 0; 7492 ctsio->kern_data_len = alloc_len; 7493 ctsio->kern_total_len = alloc_len; 7494 } 7495 ctsio->kern_data_resid = 0; 7496 ctsio->kern_rel_offset = 0; 7497 7498 data = (struct scsi_report_supported_tmf_ext_data *)ctsio->kern_data_ptr; 7499 data->byte1 |= RST_ATS | RST_ATSS | RST_CTSS | RST_LURS | RST_QTS | 7500 RST_TRS; 7501 data->byte2 |= RST_QAES | RST_QTSS | RST_ITNRS; 7502 data->length = total_len - 4; 7503 7504 ctl_set_success(ctsio); 7505 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7506 ctsio->be_move_done = ctl_config_move_done; 7507 ctl_datamove((union ctl_io *)ctsio); 7508 return (retval); 7509} 7510 7511int 7512ctl_report_timestamp(struct ctl_scsiio *ctsio) 7513{ 7514 struct scsi_report_timestamp *cdb; 7515 struct scsi_report_timestamp_data *data; 7516 struct timeval tv; 7517 int64_t timestamp; 7518 int retval; 7519 int alloc_len, total_len; 7520 7521 CTL_DEBUG_PRINT(("ctl_report_timestamp\n")); 7522 7523 cdb = (struct scsi_report_timestamp *)ctsio->cdb; 7524 7525 retval = CTL_RETVAL_COMPLETE; 7526 7527 total_len = sizeof(struct scsi_report_timestamp_data); 7528 alloc_len = scsi_4btoul(cdb->length); 7529 7530 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7531 7532 ctsio->kern_sg_entries = 0; 7533 7534 if (total_len < alloc_len) { 7535 ctsio->residual = alloc_len - total_len; 7536 ctsio->kern_data_len = total_len; 7537 ctsio->kern_total_len = total_len; 7538 } else { 7539 ctsio->residual = 0; 7540 ctsio->kern_data_len = alloc_len; 7541 ctsio->kern_total_len = alloc_len; 7542 } 7543 ctsio->kern_data_resid = 0; 7544 ctsio->kern_rel_offset = 0; 7545 7546 data = (struct scsi_report_timestamp_data *)ctsio->kern_data_ptr; 7547 scsi_ulto2b(sizeof(*data) - 2, data->length); 7548 data->origin = RTS_ORIG_OUTSIDE; 7549 getmicrotime(&tv); 7550 timestamp = (int64_t)tv.tv_sec * 1000 + tv.tv_usec / 1000; 7551 scsi_ulto4b(timestamp >> 16, data->timestamp); 7552 scsi_ulto2b(timestamp & 0xffff, &data->timestamp[4]); 7553 7554 ctl_set_success(ctsio); 7555 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7556 ctsio->be_move_done = ctl_config_move_done; 7557 ctl_datamove((union ctl_io *)ctsio); 7558 return (retval); 7559} 7560 7561int 7562ctl_persistent_reserve_in(struct ctl_scsiio *ctsio) 7563{ 7564 struct scsi_per_res_in *cdb; 7565 int alloc_len, total_len = 0; 7566 /* struct scsi_per_res_in_rsrv in_data; */ 7567 struct ctl_lun *lun; 7568 struct ctl_softc *softc; 7569 uint64_t key; 7570 7571 CTL_DEBUG_PRINT(("ctl_persistent_reserve_in\n")); 7572 7573 cdb = (struct scsi_per_res_in *)ctsio->cdb; 7574 7575 alloc_len = scsi_2btoul(cdb->length); 7576 7577 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7578 softc = lun->ctl_softc; 7579 7580retry: 7581 mtx_lock(&lun->lun_lock); 7582 switch (cdb->action) { 7583 case SPRI_RK: /* read keys */ 7584 total_len = sizeof(struct scsi_per_res_in_keys) + 7585 lun->pr_key_count * 7586 sizeof(struct scsi_per_res_key); 7587 break; 7588 case SPRI_RR: /* read reservation */ 7589 if (lun->flags & CTL_LUN_PR_RESERVED) 7590 total_len = sizeof(struct scsi_per_res_in_rsrv); 7591 else 7592 total_len = sizeof(struct scsi_per_res_in_header); 7593 break; 7594 case SPRI_RC: /* report capabilities */ 7595 total_len = sizeof(struct scsi_per_res_cap); 7596 break; 7597 case SPRI_RS: /* read full status */ 7598 total_len = sizeof(struct scsi_per_res_in_header) + 7599 (sizeof(struct scsi_per_res_in_full_desc) + 256) * 7600 lun->pr_key_count; 7601 break; 7602 default: 7603 panic("%s: Invalid PR type %#x", __func__, cdb->action); 7604 } 7605 mtx_unlock(&lun->lun_lock); 7606 7607 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7608 7609 if (total_len < alloc_len) { 7610 ctsio->residual = alloc_len - total_len; 7611 ctsio->kern_data_len = total_len; 7612 ctsio->kern_total_len = total_len; 7613 } else { 7614 ctsio->residual = 0; 7615 ctsio->kern_data_len = alloc_len; 7616 ctsio->kern_total_len = alloc_len; 7617 } 7618 7619 ctsio->kern_data_resid = 0; 7620 ctsio->kern_rel_offset = 0; 7621 ctsio->kern_sg_entries = 0; 7622 7623 mtx_lock(&lun->lun_lock); 7624 switch (cdb->action) { 7625 case SPRI_RK: { // read keys 7626 struct scsi_per_res_in_keys *res_keys; 7627 int i, key_count; 7628 7629 res_keys = (struct scsi_per_res_in_keys*)ctsio->kern_data_ptr; 7630 7631 /* 7632 * We had to drop the lock to allocate our buffer, which 7633 * leaves time for someone to come in with another 7634 * persistent reservation. (That is unlikely, though, 7635 * since this should be the only persistent reservation 7636 * command active right now.) 7637 */ 7638 if (total_len != (sizeof(struct scsi_per_res_in_keys) + 7639 (lun->pr_key_count * 7640 sizeof(struct scsi_per_res_key)))){ 7641 mtx_unlock(&lun->lun_lock); 7642 free(ctsio->kern_data_ptr, M_CTL); 7643 printf("%s: reservation length changed, retrying\n", 7644 __func__); 7645 goto retry; 7646 } 7647 7648 scsi_ulto4b(lun->pr_generation, res_keys->header.generation); 7649 7650 scsi_ulto4b(sizeof(struct scsi_per_res_key) * 7651 lun->pr_key_count, res_keys->header.length); 7652 7653 for (i = 0, key_count = 0; i < CTL_MAX_INITIATORS; i++) { 7654 if ((key = ctl_get_prkey(lun, i)) == 0) 7655 continue; 7656 7657 /* 7658 * We used lun->pr_key_count to calculate the 7659 * size to allocate. If it turns out the number of 7660 * initiators with the registered flag set is 7661 * larger than that (i.e. they haven't been kept in 7662 * sync), we've got a problem. 7663 */ 7664 if (key_count >= lun->pr_key_count) { 7665 key_count++; 7666 continue; 7667 } 7668 scsi_u64to8b(key, res_keys->keys[key_count].key); 7669 key_count++; 7670 } 7671 break; 7672 } 7673 case SPRI_RR: { // read reservation 7674 struct scsi_per_res_in_rsrv *res; 7675 int tmp_len, header_only; 7676 7677 res = (struct scsi_per_res_in_rsrv *)ctsio->kern_data_ptr; 7678 7679 scsi_ulto4b(lun->pr_generation, res->header.generation); 7680 7681 if (lun->flags & CTL_LUN_PR_RESERVED) 7682 { 7683 tmp_len = sizeof(struct scsi_per_res_in_rsrv); 7684 scsi_ulto4b(sizeof(struct scsi_per_res_in_rsrv_data), 7685 res->header.length); 7686 header_only = 0; 7687 } else { 7688 tmp_len = sizeof(struct scsi_per_res_in_header); 7689 scsi_ulto4b(0, res->header.length); 7690 header_only = 1; 7691 } 7692 7693 /* 7694 * We had to drop the lock to allocate our buffer, which 7695 * leaves time for someone to come in with another 7696 * persistent reservation. (That is unlikely, though, 7697 * since this should be the only persistent reservation 7698 * command active right now.) 7699 */ 7700 if (tmp_len != total_len) { 7701 mtx_unlock(&lun->lun_lock); 7702 free(ctsio->kern_data_ptr, M_CTL); 7703 printf("%s: reservation status changed, retrying\n", 7704 __func__); 7705 goto retry; 7706 } 7707 7708 /* 7709 * No reservation held, so we're done. 7710 */ 7711 if (header_only != 0) 7712 break; 7713 7714 /* 7715 * If the registration is an All Registrants type, the key 7716 * is 0, since it doesn't really matter. 7717 */ 7718 if (lun->pr_res_idx != CTL_PR_ALL_REGISTRANTS) { 7719 scsi_u64to8b(ctl_get_prkey(lun, lun->pr_res_idx), 7720 res->data.reservation); 7721 } 7722 res->data.scopetype = lun->pr_res_type; 7723 break; 7724 } 7725 case SPRI_RC: //report capabilities 7726 { 7727 struct scsi_per_res_cap *res_cap; 7728 uint16_t type_mask; 7729 7730 res_cap = (struct scsi_per_res_cap *)ctsio->kern_data_ptr; 7731 scsi_ulto2b(sizeof(*res_cap), res_cap->length); 7732 res_cap->flags1 = SPRI_CRH; 7733 res_cap->flags2 = SPRI_TMV | SPRI_ALLOW_5; 7734 type_mask = SPRI_TM_WR_EX_AR | 7735 SPRI_TM_EX_AC_RO | 7736 SPRI_TM_WR_EX_RO | 7737 SPRI_TM_EX_AC | 7738 SPRI_TM_WR_EX | 7739 SPRI_TM_EX_AC_AR; 7740 scsi_ulto2b(type_mask, res_cap->type_mask); 7741 break; 7742 } 7743 case SPRI_RS: { // read full status 7744 struct scsi_per_res_in_full *res_status; 7745 struct scsi_per_res_in_full_desc *res_desc; 7746 struct ctl_port *port; 7747 int i, len; 7748 7749 res_status = (struct scsi_per_res_in_full*)ctsio->kern_data_ptr; 7750 7751 /* 7752 * We had to drop the lock to allocate our buffer, which 7753 * leaves time for someone to come in with another 7754 * persistent reservation. (That is unlikely, though, 7755 * since this should be the only persistent reservation 7756 * command active right now.) 7757 */ 7758 if (total_len < (sizeof(struct scsi_per_res_in_header) + 7759 (sizeof(struct scsi_per_res_in_full_desc) + 256) * 7760 lun->pr_key_count)){ 7761 mtx_unlock(&lun->lun_lock); 7762 free(ctsio->kern_data_ptr, M_CTL); 7763 printf("%s: reservation length changed, retrying\n", 7764 __func__); 7765 goto retry; 7766 } 7767 7768 scsi_ulto4b(lun->pr_generation, res_status->header.generation); 7769 7770 res_desc = &res_status->desc[0]; 7771 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 7772 if ((key = ctl_get_prkey(lun, i)) == 0) 7773 continue; 7774 7775 scsi_u64to8b(key, res_desc->res_key.key); 7776 if ((lun->flags & CTL_LUN_PR_RESERVED) && 7777 (lun->pr_res_idx == i || 7778 lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS)) { 7779 res_desc->flags = SPRI_FULL_R_HOLDER; 7780 res_desc->scopetype = lun->pr_res_type; 7781 } 7782 scsi_ulto2b(i / CTL_MAX_INIT_PER_PORT, 7783 res_desc->rel_trgt_port_id); 7784 len = 0; 7785 port = softc->ctl_ports[i / CTL_MAX_INIT_PER_PORT]; 7786 if (port != NULL) 7787 len = ctl_create_iid(port, 7788 i % CTL_MAX_INIT_PER_PORT, 7789 res_desc->transport_id); 7790 scsi_ulto4b(len, res_desc->additional_length); 7791 res_desc = (struct scsi_per_res_in_full_desc *) 7792 &res_desc->transport_id[len]; 7793 } 7794 scsi_ulto4b((uint8_t *)res_desc - (uint8_t *)&res_status->desc[0], 7795 res_status->header.length); 7796 break; 7797 } 7798 default: 7799 panic("%s: Invalid PR type %#x", __func__, cdb->action); 7800 } 7801 mtx_unlock(&lun->lun_lock); 7802 7803 ctl_set_success(ctsio); 7804 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7805 ctsio->be_move_done = ctl_config_move_done; 7806 ctl_datamove((union ctl_io *)ctsio); 7807 return (CTL_RETVAL_COMPLETE); 7808} 7809 7810/* 7811 * Returns 0 if ctl_persistent_reserve_out() should continue, non-zero if 7812 * it should return. 7813 */ 7814static int 7815ctl_pro_preempt(struct ctl_softc *softc, struct ctl_lun *lun, uint64_t res_key, 7816 uint64_t sa_res_key, uint8_t type, uint32_t residx, 7817 struct ctl_scsiio *ctsio, struct scsi_per_res_out *cdb, 7818 struct scsi_per_res_out_parms* param) 7819{ 7820 union ctl_ha_msg persis_io; 7821 int i; 7822 7823 mtx_lock(&lun->lun_lock); 7824 if (sa_res_key == 0) { 7825 if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS) { 7826 /* validate scope and type */ 7827 if ((cdb->scope_type & SPR_SCOPE_MASK) != 7828 SPR_LU_SCOPE) { 7829 mtx_unlock(&lun->lun_lock); 7830 ctl_set_invalid_field(/*ctsio*/ ctsio, 7831 /*sks_valid*/ 1, 7832 /*command*/ 1, 7833 /*field*/ 2, 7834 /*bit_valid*/ 1, 7835 /*bit*/ 4); 7836 ctl_done((union ctl_io *)ctsio); 7837 return (1); 7838 } 7839 7840 if (type>8 || type==2 || type==4 || type==0) { 7841 mtx_unlock(&lun->lun_lock); 7842 ctl_set_invalid_field(/*ctsio*/ ctsio, 7843 /*sks_valid*/ 1, 7844 /*command*/ 1, 7845 /*field*/ 2, 7846 /*bit_valid*/ 1, 7847 /*bit*/ 0); 7848 ctl_done((union ctl_io *)ctsio); 7849 return (1); 7850 } 7851 7852 /* 7853 * Unregister everybody else and build UA for 7854 * them 7855 */ 7856 for(i = 0; i < CTL_MAX_INITIATORS; i++) { 7857 if (i == residx || ctl_get_prkey(lun, i) == 0) 7858 continue; 7859 7860 ctl_clr_prkey(lun, i); 7861 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 7862 } 7863 lun->pr_key_count = 1; 7864 lun->pr_res_type = type; 7865 if (lun->pr_res_type != SPR_TYPE_WR_EX_AR && 7866 lun->pr_res_type != SPR_TYPE_EX_AC_AR) 7867 lun->pr_res_idx = residx; 7868 lun->pr_generation++; 7869 mtx_unlock(&lun->lun_lock); 7870 7871 /* send msg to other side */ 7872 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 7873 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 7874 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 7875 persis_io.pr.pr_info.residx = lun->pr_res_idx; 7876 persis_io.pr.pr_info.res_type = type; 7877 memcpy(persis_io.pr.pr_info.sa_res_key, 7878 param->serv_act_res_key, 7879 sizeof(param->serv_act_res_key)); 7880 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 7881 sizeof(persis_io.pr), M_WAITOK); 7882 } else { 7883 /* not all registrants */ 7884 mtx_unlock(&lun->lun_lock); 7885 free(ctsio->kern_data_ptr, M_CTL); 7886 ctl_set_invalid_field(ctsio, 7887 /*sks_valid*/ 1, 7888 /*command*/ 0, 7889 /*field*/ 8, 7890 /*bit_valid*/ 0, 7891 /*bit*/ 0); 7892 ctl_done((union ctl_io *)ctsio); 7893 return (1); 7894 } 7895 } else if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS 7896 || !(lun->flags & CTL_LUN_PR_RESERVED)) { 7897 int found = 0; 7898 7899 if (res_key == sa_res_key) { 7900 /* special case */ 7901 /* 7902 * The spec implies this is not good but doesn't 7903 * say what to do. There are two choices either 7904 * generate a res conflict or check condition 7905 * with illegal field in parameter data. Since 7906 * that is what is done when the sa_res_key is 7907 * zero I'll take that approach since this has 7908 * to do with the sa_res_key. 7909 */ 7910 mtx_unlock(&lun->lun_lock); 7911 free(ctsio->kern_data_ptr, M_CTL); 7912 ctl_set_invalid_field(ctsio, 7913 /*sks_valid*/ 1, 7914 /*command*/ 0, 7915 /*field*/ 8, 7916 /*bit_valid*/ 0, 7917 /*bit*/ 0); 7918 ctl_done((union ctl_io *)ctsio); 7919 return (1); 7920 } 7921 7922 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 7923 if (ctl_get_prkey(lun, i) != sa_res_key) 7924 continue; 7925 7926 found = 1; 7927 ctl_clr_prkey(lun, i); 7928 lun->pr_key_count--; 7929 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 7930 } 7931 if (!found) { 7932 mtx_unlock(&lun->lun_lock); 7933 free(ctsio->kern_data_ptr, M_CTL); 7934 ctl_set_reservation_conflict(ctsio); 7935 ctl_done((union ctl_io *)ctsio); 7936 return (CTL_RETVAL_COMPLETE); 7937 } 7938 lun->pr_generation++; 7939 mtx_unlock(&lun->lun_lock); 7940 7941 /* send msg to other side */ 7942 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 7943 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 7944 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 7945 persis_io.pr.pr_info.residx = lun->pr_res_idx; 7946 persis_io.pr.pr_info.res_type = type; 7947 memcpy(persis_io.pr.pr_info.sa_res_key, 7948 param->serv_act_res_key, 7949 sizeof(param->serv_act_res_key)); 7950 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 7951 sizeof(persis_io.pr), M_WAITOK); 7952 } else { 7953 /* Reserved but not all registrants */ 7954 /* sa_res_key is res holder */ 7955 if (sa_res_key == ctl_get_prkey(lun, lun->pr_res_idx)) { 7956 /* validate scope and type */ 7957 if ((cdb->scope_type & SPR_SCOPE_MASK) != 7958 SPR_LU_SCOPE) { 7959 mtx_unlock(&lun->lun_lock); 7960 ctl_set_invalid_field(/*ctsio*/ ctsio, 7961 /*sks_valid*/ 1, 7962 /*command*/ 1, 7963 /*field*/ 2, 7964 /*bit_valid*/ 1, 7965 /*bit*/ 4); 7966 ctl_done((union ctl_io *)ctsio); 7967 return (1); 7968 } 7969 7970 if (type>8 || type==2 || type==4 || type==0) { 7971 mtx_unlock(&lun->lun_lock); 7972 ctl_set_invalid_field(/*ctsio*/ ctsio, 7973 /*sks_valid*/ 1, 7974 /*command*/ 1, 7975 /*field*/ 2, 7976 /*bit_valid*/ 1, 7977 /*bit*/ 0); 7978 ctl_done((union ctl_io *)ctsio); 7979 return (1); 7980 } 7981 7982 /* 7983 * Do the following: 7984 * if sa_res_key != res_key remove all 7985 * registrants w/sa_res_key and generate UA 7986 * for these registrants(Registrations 7987 * Preempted) if it wasn't an exclusive 7988 * reservation generate UA(Reservations 7989 * Preempted) for all other registered nexuses 7990 * if the type has changed. Establish the new 7991 * reservation and holder. If res_key and 7992 * sa_res_key are the same do the above 7993 * except don't unregister the res holder. 7994 */ 7995 7996 for(i = 0; i < CTL_MAX_INITIATORS; i++) { 7997 if (i == residx || ctl_get_prkey(lun, i) == 0) 7998 continue; 7999 8000 if (sa_res_key == ctl_get_prkey(lun, i)) { 8001 ctl_clr_prkey(lun, i); 8002 lun->pr_key_count--; 8003 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 8004 } else if (type != lun->pr_res_type && 8005 (lun->pr_res_type == SPR_TYPE_WR_EX_RO || 8006 lun->pr_res_type == SPR_TYPE_EX_AC_RO)) { 8007 ctl_est_ua(lun, i, CTL_UA_RES_RELEASE); 8008 } 8009 } 8010 lun->pr_res_type = type; 8011 if (lun->pr_res_type != SPR_TYPE_WR_EX_AR && 8012 lun->pr_res_type != SPR_TYPE_EX_AC_AR) 8013 lun->pr_res_idx = residx; 8014 else 8015 lun->pr_res_idx = CTL_PR_ALL_REGISTRANTS; 8016 lun->pr_generation++; 8017 mtx_unlock(&lun->lun_lock); 8018 8019 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8020 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8021 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 8022 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8023 persis_io.pr.pr_info.res_type = type; 8024 memcpy(persis_io.pr.pr_info.sa_res_key, 8025 param->serv_act_res_key, 8026 sizeof(param->serv_act_res_key)); 8027 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8028 sizeof(persis_io.pr), M_WAITOK); 8029 } else { 8030 /* 8031 * sa_res_key is not the res holder just 8032 * remove registrants 8033 */ 8034 int found=0; 8035 8036 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 8037 if (sa_res_key != ctl_get_prkey(lun, i)) 8038 continue; 8039 8040 found = 1; 8041 ctl_clr_prkey(lun, i); 8042 lun->pr_key_count--; 8043 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 8044 } 8045 8046 if (!found) { 8047 mtx_unlock(&lun->lun_lock); 8048 free(ctsio->kern_data_ptr, M_CTL); 8049 ctl_set_reservation_conflict(ctsio); 8050 ctl_done((union ctl_io *)ctsio); 8051 return (1); 8052 } 8053 lun->pr_generation++; 8054 mtx_unlock(&lun->lun_lock); 8055 8056 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8057 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8058 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 8059 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8060 persis_io.pr.pr_info.res_type = type; 8061 memcpy(persis_io.pr.pr_info.sa_res_key, 8062 param->serv_act_res_key, 8063 sizeof(param->serv_act_res_key)); 8064 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8065 sizeof(persis_io.pr), M_WAITOK); 8066 } 8067 } 8068 return (0); 8069} 8070 8071static void 8072ctl_pro_preempt_other(struct ctl_lun *lun, union ctl_ha_msg *msg) 8073{ 8074 uint64_t sa_res_key; 8075 int i; 8076 8077 sa_res_key = scsi_8btou64(msg->pr.pr_info.sa_res_key); 8078 8079 if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS 8080 || lun->pr_res_idx == CTL_PR_NO_RESERVATION 8081 || sa_res_key != ctl_get_prkey(lun, lun->pr_res_idx)) { 8082 if (sa_res_key == 0) { 8083 /* 8084 * Unregister everybody else and build UA for 8085 * them 8086 */ 8087 for(i = 0; i < CTL_MAX_INITIATORS; i++) { 8088 if (i == msg->pr.pr_info.residx || 8089 ctl_get_prkey(lun, i) == 0) 8090 continue; 8091 8092 ctl_clr_prkey(lun, i); 8093 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 8094 } 8095 8096 lun->pr_key_count = 1; 8097 lun->pr_res_type = msg->pr.pr_info.res_type; 8098 if (lun->pr_res_type != SPR_TYPE_WR_EX_AR && 8099 lun->pr_res_type != SPR_TYPE_EX_AC_AR) 8100 lun->pr_res_idx = msg->pr.pr_info.residx; 8101 } else { 8102 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 8103 if (sa_res_key == ctl_get_prkey(lun, i)) 8104 continue; 8105 8106 ctl_clr_prkey(lun, i); 8107 lun->pr_key_count--; 8108 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 8109 } 8110 } 8111 } else { 8112 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 8113 if (i == msg->pr.pr_info.residx || 8114 ctl_get_prkey(lun, i) == 0) 8115 continue; 8116 8117 if (sa_res_key == ctl_get_prkey(lun, i)) { 8118 ctl_clr_prkey(lun, i); 8119 lun->pr_key_count--; 8120 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 8121 } else if (msg->pr.pr_info.res_type != lun->pr_res_type 8122 && (lun->pr_res_type == SPR_TYPE_WR_EX_RO || 8123 lun->pr_res_type == SPR_TYPE_EX_AC_RO)) { 8124 ctl_est_ua(lun, i, CTL_UA_RES_RELEASE); 8125 } 8126 } 8127 lun->pr_res_type = msg->pr.pr_info.res_type; 8128 if (lun->pr_res_type != SPR_TYPE_WR_EX_AR && 8129 lun->pr_res_type != SPR_TYPE_EX_AC_AR) 8130 lun->pr_res_idx = msg->pr.pr_info.residx; 8131 else 8132 lun->pr_res_idx = CTL_PR_ALL_REGISTRANTS; 8133 } 8134 lun->pr_generation++; 8135 8136} 8137 8138 8139int 8140ctl_persistent_reserve_out(struct ctl_scsiio *ctsio) 8141{ 8142 int retval; 8143 u_int32_t param_len; 8144 struct scsi_per_res_out *cdb; 8145 struct ctl_lun *lun; 8146 struct scsi_per_res_out_parms* param; 8147 struct ctl_softc *softc; 8148 uint32_t residx; 8149 uint64_t res_key, sa_res_key, key; 8150 uint8_t type; 8151 union ctl_ha_msg persis_io; 8152 int i; 8153 8154 CTL_DEBUG_PRINT(("ctl_persistent_reserve_out\n")); 8155 8156 retval = CTL_RETVAL_COMPLETE; 8157 8158 cdb = (struct scsi_per_res_out *)ctsio->cdb; 8159 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 8160 softc = lun->ctl_softc; 8161 8162 /* 8163 * We only support whole-LUN scope. The scope & type are ignored for 8164 * register, register and ignore existing key and clear. 8165 * We sometimes ignore scope and type on preempts too!! 8166 * Verify reservation type here as well. 8167 */ 8168 type = cdb->scope_type & SPR_TYPE_MASK; 8169 if ((cdb->action == SPRO_RESERVE) 8170 || (cdb->action == SPRO_RELEASE)) { 8171 if ((cdb->scope_type & SPR_SCOPE_MASK) != SPR_LU_SCOPE) { 8172 ctl_set_invalid_field(/*ctsio*/ ctsio, 8173 /*sks_valid*/ 1, 8174 /*command*/ 1, 8175 /*field*/ 2, 8176 /*bit_valid*/ 1, 8177 /*bit*/ 4); 8178 ctl_done((union ctl_io *)ctsio); 8179 return (CTL_RETVAL_COMPLETE); 8180 } 8181 8182 if (type>8 || type==2 || type==4 || type==0) { 8183 ctl_set_invalid_field(/*ctsio*/ ctsio, 8184 /*sks_valid*/ 1, 8185 /*command*/ 1, 8186 /*field*/ 2, 8187 /*bit_valid*/ 1, 8188 /*bit*/ 0); 8189 ctl_done((union ctl_io *)ctsio); 8190 return (CTL_RETVAL_COMPLETE); 8191 } 8192 } 8193 8194 param_len = scsi_4btoul(cdb->length); 8195 8196 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 8197 ctsio->kern_data_ptr = malloc(param_len, M_CTL, M_WAITOK); 8198 ctsio->kern_data_len = param_len; 8199 ctsio->kern_total_len = param_len; 8200 ctsio->kern_data_resid = 0; 8201 ctsio->kern_rel_offset = 0; 8202 ctsio->kern_sg_entries = 0; 8203 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 8204 ctsio->be_move_done = ctl_config_move_done; 8205 ctl_datamove((union ctl_io *)ctsio); 8206 8207 return (CTL_RETVAL_COMPLETE); 8208 } 8209 8210 param = (struct scsi_per_res_out_parms *)ctsio->kern_data_ptr; 8211 8212 residx = ctl_get_initindex(&ctsio->io_hdr.nexus); 8213 res_key = scsi_8btou64(param->res_key.key); 8214 sa_res_key = scsi_8btou64(param->serv_act_res_key); 8215 8216 /* 8217 * Validate the reservation key here except for SPRO_REG_IGNO 8218 * This must be done for all other service actions 8219 */ 8220 if ((cdb->action & SPRO_ACTION_MASK) != SPRO_REG_IGNO) { 8221 mtx_lock(&lun->lun_lock); 8222 if ((key = ctl_get_prkey(lun, residx)) != 0) { 8223 if (res_key != key) { 8224 /* 8225 * The current key passed in doesn't match 8226 * the one the initiator previously 8227 * registered. 8228 */ 8229 mtx_unlock(&lun->lun_lock); 8230 free(ctsio->kern_data_ptr, M_CTL); 8231 ctl_set_reservation_conflict(ctsio); 8232 ctl_done((union ctl_io *)ctsio); 8233 return (CTL_RETVAL_COMPLETE); 8234 } 8235 } else if ((cdb->action & SPRO_ACTION_MASK) != SPRO_REGISTER) { 8236 /* 8237 * We are not registered 8238 */ 8239 mtx_unlock(&lun->lun_lock); 8240 free(ctsio->kern_data_ptr, M_CTL); 8241 ctl_set_reservation_conflict(ctsio); 8242 ctl_done((union ctl_io *)ctsio); 8243 return (CTL_RETVAL_COMPLETE); 8244 } else if (res_key != 0) { 8245 /* 8246 * We are not registered and trying to register but 8247 * the register key isn't zero. 8248 */ 8249 mtx_unlock(&lun->lun_lock); 8250 free(ctsio->kern_data_ptr, M_CTL); 8251 ctl_set_reservation_conflict(ctsio); 8252 ctl_done((union ctl_io *)ctsio); 8253 return (CTL_RETVAL_COMPLETE); 8254 } 8255 mtx_unlock(&lun->lun_lock); 8256 } 8257 8258 switch (cdb->action & SPRO_ACTION_MASK) { 8259 case SPRO_REGISTER: 8260 case SPRO_REG_IGNO: { 8261 8262#if 0 8263 printf("Registration received\n"); 8264#endif 8265 8266 /* 8267 * We don't support any of these options, as we report in 8268 * the read capabilities request (see 8269 * ctl_persistent_reserve_in(), above). 8270 */ 8271 if ((param->flags & SPR_SPEC_I_PT) 8272 || (param->flags & SPR_ALL_TG_PT) 8273 || (param->flags & SPR_APTPL)) { 8274 int bit_ptr; 8275 8276 if (param->flags & SPR_APTPL) 8277 bit_ptr = 0; 8278 else if (param->flags & SPR_ALL_TG_PT) 8279 bit_ptr = 2; 8280 else /* SPR_SPEC_I_PT */ 8281 bit_ptr = 3; 8282 8283 free(ctsio->kern_data_ptr, M_CTL); 8284 ctl_set_invalid_field(ctsio, 8285 /*sks_valid*/ 1, 8286 /*command*/ 0, 8287 /*field*/ 20, 8288 /*bit_valid*/ 1, 8289 /*bit*/ bit_ptr); 8290 ctl_done((union ctl_io *)ctsio); 8291 return (CTL_RETVAL_COMPLETE); 8292 } 8293 8294 mtx_lock(&lun->lun_lock); 8295 8296 /* 8297 * The initiator wants to clear the 8298 * key/unregister. 8299 */ 8300 if (sa_res_key == 0) { 8301 if ((res_key == 0 8302 && (cdb->action & SPRO_ACTION_MASK) == SPRO_REGISTER) 8303 || ((cdb->action & SPRO_ACTION_MASK) == SPRO_REG_IGNO 8304 && ctl_get_prkey(lun, residx) == 0)) { 8305 mtx_unlock(&lun->lun_lock); 8306 goto done; 8307 } 8308 8309 ctl_clr_prkey(lun, residx); 8310 lun->pr_key_count--; 8311 8312 if (residx == lun->pr_res_idx) { 8313 lun->flags &= ~CTL_LUN_PR_RESERVED; 8314 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8315 8316 if ((lun->pr_res_type == SPR_TYPE_WR_EX_RO || 8317 lun->pr_res_type == SPR_TYPE_EX_AC_RO) && 8318 lun->pr_key_count) { 8319 /* 8320 * If the reservation is a registrants 8321 * only type we need to generate a UA 8322 * for other registered inits. The 8323 * sense code should be RESERVATIONS 8324 * RELEASED 8325 */ 8326 8327 for (i = softc->init_min; i < softc->init_max; i++){ 8328 if (ctl_get_prkey(lun, i) == 0) 8329 continue; 8330 ctl_est_ua(lun, i, 8331 CTL_UA_RES_RELEASE); 8332 } 8333 } 8334 lun->pr_res_type = 0; 8335 } else if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS) { 8336 if (lun->pr_key_count==0) { 8337 lun->flags &= ~CTL_LUN_PR_RESERVED; 8338 lun->pr_res_type = 0; 8339 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8340 } 8341 } 8342 lun->pr_generation++; 8343 mtx_unlock(&lun->lun_lock); 8344 8345 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8346 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8347 persis_io.pr.pr_info.action = CTL_PR_UNREG_KEY; 8348 persis_io.pr.pr_info.residx = residx; 8349 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8350 sizeof(persis_io.pr), M_WAITOK); 8351 } else /* sa_res_key != 0 */ { 8352 8353 /* 8354 * If we aren't registered currently then increment 8355 * the key count and set the registered flag. 8356 */ 8357 ctl_alloc_prkey(lun, residx); 8358 if (ctl_get_prkey(lun, residx) == 0) 8359 lun->pr_key_count++; 8360 ctl_set_prkey(lun, residx, sa_res_key); 8361 lun->pr_generation++; 8362 mtx_unlock(&lun->lun_lock); 8363 8364 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8365 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8366 persis_io.pr.pr_info.action = CTL_PR_REG_KEY; 8367 persis_io.pr.pr_info.residx = residx; 8368 memcpy(persis_io.pr.pr_info.sa_res_key, 8369 param->serv_act_res_key, 8370 sizeof(param->serv_act_res_key)); 8371 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8372 sizeof(persis_io.pr), M_WAITOK); 8373 } 8374 8375 break; 8376 } 8377 case SPRO_RESERVE: 8378#if 0 8379 printf("Reserve executed type %d\n", type); 8380#endif 8381 mtx_lock(&lun->lun_lock); 8382 if (lun->flags & CTL_LUN_PR_RESERVED) { 8383 /* 8384 * if this isn't the reservation holder and it's 8385 * not a "all registrants" type or if the type is 8386 * different then we have a conflict 8387 */ 8388 if ((lun->pr_res_idx != residx 8389 && lun->pr_res_idx != CTL_PR_ALL_REGISTRANTS) 8390 || lun->pr_res_type != type) { 8391 mtx_unlock(&lun->lun_lock); 8392 free(ctsio->kern_data_ptr, M_CTL); 8393 ctl_set_reservation_conflict(ctsio); 8394 ctl_done((union ctl_io *)ctsio); 8395 return (CTL_RETVAL_COMPLETE); 8396 } 8397 mtx_unlock(&lun->lun_lock); 8398 } else /* create a reservation */ { 8399 /* 8400 * If it's not an "all registrants" type record 8401 * reservation holder 8402 */ 8403 if (type != SPR_TYPE_WR_EX_AR 8404 && type != SPR_TYPE_EX_AC_AR) 8405 lun->pr_res_idx = residx; /* Res holder */ 8406 else 8407 lun->pr_res_idx = CTL_PR_ALL_REGISTRANTS; 8408 8409 lun->flags |= CTL_LUN_PR_RESERVED; 8410 lun->pr_res_type = type; 8411 8412 mtx_unlock(&lun->lun_lock); 8413 8414 /* send msg to other side */ 8415 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8416 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8417 persis_io.pr.pr_info.action = CTL_PR_RESERVE; 8418 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8419 persis_io.pr.pr_info.res_type = type; 8420 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8421 sizeof(persis_io.pr), M_WAITOK); 8422 } 8423 break; 8424 8425 case SPRO_RELEASE: 8426 mtx_lock(&lun->lun_lock); 8427 if ((lun->flags & CTL_LUN_PR_RESERVED) == 0) { 8428 /* No reservation exists return good status */ 8429 mtx_unlock(&lun->lun_lock); 8430 goto done; 8431 } 8432 /* 8433 * Is this nexus a reservation holder? 8434 */ 8435 if (lun->pr_res_idx != residx 8436 && lun->pr_res_idx != CTL_PR_ALL_REGISTRANTS) { 8437 /* 8438 * not a res holder return good status but 8439 * do nothing 8440 */ 8441 mtx_unlock(&lun->lun_lock); 8442 goto done; 8443 } 8444 8445 if (lun->pr_res_type != type) { 8446 mtx_unlock(&lun->lun_lock); 8447 free(ctsio->kern_data_ptr, M_CTL); 8448 ctl_set_illegal_pr_release(ctsio); 8449 ctl_done((union ctl_io *)ctsio); 8450 return (CTL_RETVAL_COMPLETE); 8451 } 8452 8453 /* okay to release */ 8454 lun->flags &= ~CTL_LUN_PR_RESERVED; 8455 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8456 lun->pr_res_type = 0; 8457 8458 /* 8459 * If this isn't an exclusive access reservation and NUAR 8460 * is not set, generate UA for all other registrants. 8461 */ 8462 if (type != SPR_TYPE_EX_AC && type != SPR_TYPE_WR_EX && 8463 (lun->MODE_CTRL.queue_flags & SCP_NUAR) == 0) { 8464 for (i = softc->init_min; i < softc->init_max; i++) { 8465 if (i == residx || ctl_get_prkey(lun, i) == 0) 8466 continue; 8467 ctl_est_ua(lun, i, CTL_UA_RES_RELEASE); 8468 } 8469 } 8470 mtx_unlock(&lun->lun_lock); 8471 8472 /* Send msg to other side */ 8473 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8474 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8475 persis_io.pr.pr_info.action = CTL_PR_RELEASE; 8476 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8477 sizeof(persis_io.pr), M_WAITOK); 8478 break; 8479 8480 case SPRO_CLEAR: 8481 /* send msg to other side */ 8482 8483 mtx_lock(&lun->lun_lock); 8484 lun->flags &= ~CTL_LUN_PR_RESERVED; 8485 lun->pr_res_type = 0; 8486 lun->pr_key_count = 0; 8487 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8488 8489 ctl_clr_prkey(lun, residx); 8490 for (i = 0; i < CTL_MAX_INITIATORS; i++) 8491 if (ctl_get_prkey(lun, i) != 0) { 8492 ctl_clr_prkey(lun, i); 8493 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 8494 } 8495 lun->pr_generation++; 8496 mtx_unlock(&lun->lun_lock); 8497 8498 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8499 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8500 persis_io.pr.pr_info.action = CTL_PR_CLEAR; 8501 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8502 sizeof(persis_io.pr), M_WAITOK); 8503 break; 8504 8505 case SPRO_PREEMPT: 8506 case SPRO_PRE_ABO: { 8507 int nretval; 8508 8509 nretval = ctl_pro_preempt(softc, lun, res_key, sa_res_key, type, 8510 residx, ctsio, cdb, param); 8511 if (nretval != 0) 8512 return (CTL_RETVAL_COMPLETE); 8513 break; 8514 } 8515 default: 8516 panic("%s: Invalid PR type %#x", __func__, cdb->action); 8517 } 8518 8519done: 8520 free(ctsio->kern_data_ptr, M_CTL); 8521 ctl_set_success(ctsio); 8522 ctl_done((union ctl_io *)ctsio); 8523 8524 return (retval); 8525} 8526 8527/* 8528 * This routine is for handling a message from the other SC pertaining to 8529 * persistent reserve out. All the error checking will have been done 8530 * so only perorming the action need be done here to keep the two 8531 * in sync. 8532 */ 8533static void 8534ctl_hndl_per_res_out_on_other_sc(union ctl_ha_msg *msg) 8535{ 8536 struct ctl_softc *softc = control_softc; 8537 struct ctl_lun *lun; 8538 int i; 8539 uint32_t residx, targ_lun; 8540 8541 targ_lun = msg->hdr.nexus.targ_mapped_lun; 8542 mtx_lock(&softc->ctl_lock); 8543 if ((targ_lun >= CTL_MAX_LUNS) || 8544 ((lun = softc->ctl_luns[targ_lun]) == NULL)) { 8545 mtx_unlock(&softc->ctl_lock); 8546 return; 8547 } 8548 mtx_lock(&lun->lun_lock); 8549 mtx_unlock(&softc->ctl_lock); 8550 if (lun->flags & CTL_LUN_DISABLED) { 8551 mtx_unlock(&lun->lun_lock); 8552 return; 8553 } 8554 residx = ctl_get_initindex(&msg->hdr.nexus); 8555 switch(msg->pr.pr_info.action) { 8556 case CTL_PR_REG_KEY: 8557 ctl_alloc_prkey(lun, msg->pr.pr_info.residx); 8558 if (ctl_get_prkey(lun, msg->pr.pr_info.residx) == 0) 8559 lun->pr_key_count++; 8560 ctl_set_prkey(lun, msg->pr.pr_info.residx, 8561 scsi_8btou64(msg->pr.pr_info.sa_res_key)); 8562 lun->pr_generation++; 8563 break; 8564 8565 case CTL_PR_UNREG_KEY: 8566 ctl_clr_prkey(lun, msg->pr.pr_info.residx); 8567 lun->pr_key_count--; 8568 8569 /* XXX Need to see if the reservation has been released */ 8570 /* if so do we need to generate UA? */ 8571 if (msg->pr.pr_info.residx == lun->pr_res_idx) { 8572 lun->flags &= ~CTL_LUN_PR_RESERVED; 8573 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8574 8575 if ((lun->pr_res_type == SPR_TYPE_WR_EX_RO || 8576 lun->pr_res_type == SPR_TYPE_EX_AC_RO) && 8577 lun->pr_key_count) { 8578 /* 8579 * If the reservation is a registrants 8580 * only type we need to generate a UA 8581 * for other registered inits. The 8582 * sense code should be RESERVATIONS 8583 * RELEASED 8584 */ 8585 8586 for (i = softc->init_min; i < softc->init_max; i++) { 8587 if (ctl_get_prkey(lun, i) == 0) 8588 continue; 8589 8590 ctl_est_ua(lun, i, CTL_UA_RES_RELEASE); 8591 } 8592 } 8593 lun->pr_res_type = 0; 8594 } else if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS) { 8595 if (lun->pr_key_count==0) { 8596 lun->flags &= ~CTL_LUN_PR_RESERVED; 8597 lun->pr_res_type = 0; 8598 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8599 } 8600 } 8601 lun->pr_generation++; 8602 break; 8603 8604 case CTL_PR_RESERVE: 8605 lun->flags |= CTL_LUN_PR_RESERVED; 8606 lun->pr_res_type = msg->pr.pr_info.res_type; 8607 lun->pr_res_idx = msg->pr.pr_info.residx; 8608 8609 break; 8610 8611 case CTL_PR_RELEASE: 8612 /* 8613 * If this isn't an exclusive access reservation and NUAR 8614 * is not set, generate UA for all other registrants. 8615 */ 8616 if (lun->pr_res_type != SPR_TYPE_EX_AC && 8617 lun->pr_res_type != SPR_TYPE_WR_EX && 8618 (lun->MODE_CTRL.queue_flags & SCP_NUAR) == 0) { 8619 for (i = softc->init_min; i < softc->init_max; i++) 8620 if (i == residx || ctl_get_prkey(lun, i) == 0) 8621 continue; 8622 ctl_est_ua(lun, i, CTL_UA_RES_RELEASE); 8623 } 8624 8625 lun->flags &= ~CTL_LUN_PR_RESERVED; 8626 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8627 lun->pr_res_type = 0; 8628 break; 8629 8630 case CTL_PR_PREEMPT: 8631 ctl_pro_preempt_other(lun, msg); 8632 break; 8633 case CTL_PR_CLEAR: 8634 lun->flags &= ~CTL_LUN_PR_RESERVED; 8635 lun->pr_res_type = 0; 8636 lun->pr_key_count = 0; 8637 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8638 8639 for (i=0; i < CTL_MAX_INITIATORS; i++) { 8640 if (ctl_get_prkey(lun, i) == 0) 8641 continue; 8642 ctl_clr_prkey(lun, i); 8643 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 8644 } 8645 lun->pr_generation++; 8646 break; 8647 } 8648 8649 mtx_unlock(&lun->lun_lock); 8650} 8651 8652int 8653ctl_read_write(struct ctl_scsiio *ctsio) 8654{ 8655 struct ctl_lun *lun; 8656 struct ctl_lba_len_flags *lbalen; 8657 uint64_t lba; 8658 uint32_t num_blocks; 8659 int flags, retval; 8660 int isread; 8661 8662 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 8663 8664 CTL_DEBUG_PRINT(("ctl_read_write: command: %#x\n", ctsio->cdb[0])); 8665 8666 flags = 0; 8667 isread = ctsio->cdb[0] == READ_6 || ctsio->cdb[0] == READ_10 8668 || ctsio->cdb[0] == READ_12 || ctsio->cdb[0] == READ_16; 8669 switch (ctsio->cdb[0]) { 8670 case READ_6: 8671 case WRITE_6: { 8672 struct scsi_rw_6 *cdb; 8673 8674 cdb = (struct scsi_rw_6 *)ctsio->cdb; 8675 8676 lba = scsi_3btoul(cdb->addr); 8677 /* only 5 bits are valid in the most significant address byte */ 8678 lba &= 0x1fffff; 8679 num_blocks = cdb->length; 8680 /* 8681 * This is correct according to SBC-2. 8682 */ 8683 if (num_blocks == 0) 8684 num_blocks = 256; 8685 break; 8686 } 8687 case READ_10: 8688 case WRITE_10: { 8689 struct scsi_rw_10 *cdb; 8690 8691 cdb = (struct scsi_rw_10 *)ctsio->cdb; 8692 if (cdb->byte2 & SRW10_FUA) 8693 flags |= CTL_LLF_FUA; 8694 if (cdb->byte2 & SRW10_DPO) 8695 flags |= CTL_LLF_DPO; 8696 lba = scsi_4btoul(cdb->addr); 8697 num_blocks = scsi_2btoul(cdb->length); 8698 break; 8699 } 8700 case WRITE_VERIFY_10: { 8701 struct scsi_write_verify_10 *cdb; 8702 8703 cdb = (struct scsi_write_verify_10 *)ctsio->cdb; 8704 flags |= CTL_LLF_FUA; 8705 if (cdb->byte2 & SWV_DPO) 8706 flags |= CTL_LLF_DPO; 8707 lba = scsi_4btoul(cdb->addr); 8708 num_blocks = scsi_2btoul(cdb->length); 8709 break; 8710 } 8711 case READ_12: 8712 case WRITE_12: { 8713 struct scsi_rw_12 *cdb; 8714 8715 cdb = (struct scsi_rw_12 *)ctsio->cdb; 8716 if (cdb->byte2 & SRW12_FUA) 8717 flags |= CTL_LLF_FUA; 8718 if (cdb->byte2 & SRW12_DPO) 8719 flags |= CTL_LLF_DPO; 8720 lba = scsi_4btoul(cdb->addr); 8721 num_blocks = scsi_4btoul(cdb->length); 8722 break; 8723 } 8724 case WRITE_VERIFY_12: { 8725 struct scsi_write_verify_12 *cdb; 8726 8727 cdb = (struct scsi_write_verify_12 *)ctsio->cdb; 8728 flags |= CTL_LLF_FUA; 8729 if (cdb->byte2 & SWV_DPO) 8730 flags |= CTL_LLF_DPO; 8731 lba = scsi_4btoul(cdb->addr); 8732 num_blocks = scsi_4btoul(cdb->length); 8733 break; 8734 } 8735 case READ_16: 8736 case WRITE_16: { 8737 struct scsi_rw_16 *cdb; 8738 8739 cdb = (struct scsi_rw_16 *)ctsio->cdb; 8740 if (cdb->byte2 & SRW12_FUA) 8741 flags |= CTL_LLF_FUA; 8742 if (cdb->byte2 & SRW12_DPO) 8743 flags |= CTL_LLF_DPO; 8744 lba = scsi_8btou64(cdb->addr); 8745 num_blocks = scsi_4btoul(cdb->length); 8746 break; 8747 } 8748 case WRITE_ATOMIC_16: { 8749 struct scsi_write_atomic_16 *cdb; 8750 8751 if (lun->be_lun->atomicblock == 0) { 8752 ctl_set_invalid_opcode(ctsio); 8753 ctl_done((union ctl_io *)ctsio); 8754 return (CTL_RETVAL_COMPLETE); 8755 } 8756 8757 cdb = (struct scsi_write_atomic_16 *)ctsio->cdb; 8758 if (cdb->byte2 & SRW12_FUA) 8759 flags |= CTL_LLF_FUA; 8760 if (cdb->byte2 & SRW12_DPO) 8761 flags |= CTL_LLF_DPO; 8762 lba = scsi_8btou64(cdb->addr); 8763 num_blocks = scsi_2btoul(cdb->length); 8764 if (num_blocks > lun->be_lun->atomicblock) { 8765 ctl_set_invalid_field(ctsio, /*sks_valid*/ 1, 8766 /*command*/ 1, /*field*/ 12, /*bit_valid*/ 0, 8767 /*bit*/ 0); 8768 ctl_done((union ctl_io *)ctsio); 8769 return (CTL_RETVAL_COMPLETE); 8770 } 8771 break; 8772 } 8773 case WRITE_VERIFY_16: { 8774 struct scsi_write_verify_16 *cdb; 8775 8776 cdb = (struct scsi_write_verify_16 *)ctsio->cdb; 8777 flags |= CTL_LLF_FUA; 8778 if (cdb->byte2 & SWV_DPO) 8779 flags |= CTL_LLF_DPO; 8780 lba = scsi_8btou64(cdb->addr); 8781 num_blocks = scsi_4btoul(cdb->length); 8782 break; 8783 } 8784 default: 8785 /* 8786 * We got a command we don't support. This shouldn't 8787 * happen, commands should be filtered out above us. 8788 */ 8789 ctl_set_invalid_opcode(ctsio); 8790 ctl_done((union ctl_io *)ctsio); 8791 8792 return (CTL_RETVAL_COMPLETE); 8793 break; /* NOTREACHED */ 8794 } 8795 8796 /* 8797 * The first check is to make sure we're in bounds, the second 8798 * check is to catch wrap-around problems. If the lba + num blocks 8799 * is less than the lba, then we've wrapped around and the block 8800 * range is invalid anyway. 8801 */ 8802 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 8803 || ((lba + num_blocks) < lba)) { 8804 ctl_set_lba_out_of_range(ctsio, 8805 MAX(lba, lun->be_lun->maxlba + 1)); 8806 ctl_done((union ctl_io *)ctsio); 8807 return (CTL_RETVAL_COMPLETE); 8808 } 8809 8810 /* 8811 * According to SBC-3, a transfer length of 0 is not an error. 8812 * Note that this cannot happen with WRITE(6) or READ(6), since 0 8813 * translates to 256 blocks for those commands. 8814 */ 8815 if (num_blocks == 0) { 8816 ctl_set_success(ctsio); 8817 ctl_done((union ctl_io *)ctsio); 8818 return (CTL_RETVAL_COMPLETE); 8819 } 8820 8821 /* Set FUA and/or DPO if caches are disabled. */ 8822 if (isread) { 8823 if ((lun->MODE_CACHING.flags1 & SCP_RCD) != 0) 8824 flags |= CTL_LLF_FUA | CTL_LLF_DPO; 8825 } else { 8826 if ((lun->MODE_CACHING.flags1 & SCP_WCE) == 0) 8827 flags |= CTL_LLF_FUA; 8828 } 8829 8830 lbalen = (struct ctl_lba_len_flags *) 8831 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 8832 lbalen->lba = lba; 8833 lbalen->len = num_blocks; 8834 lbalen->flags = (isread ? CTL_LLF_READ : CTL_LLF_WRITE) | flags; 8835 8836 ctsio->kern_total_len = num_blocks * lun->be_lun->blocksize; 8837 ctsio->kern_rel_offset = 0; 8838 8839 CTL_DEBUG_PRINT(("ctl_read_write: calling data_submit()\n")); 8840 8841 retval = lun->backend->data_submit((union ctl_io *)ctsio); 8842 return (retval); 8843} 8844 8845static int 8846ctl_cnw_cont(union ctl_io *io) 8847{ 8848 struct ctl_scsiio *ctsio; 8849 struct ctl_lun *lun; 8850 struct ctl_lba_len_flags *lbalen; 8851 int retval; 8852 8853 ctsio = &io->scsiio; 8854 ctsio->io_hdr.status = CTL_STATUS_NONE; 8855 ctsio->io_hdr.flags &= ~CTL_FLAG_IO_CONT; 8856 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 8857 lbalen = (struct ctl_lba_len_flags *) 8858 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 8859 lbalen->flags &= ~CTL_LLF_COMPARE; 8860 lbalen->flags |= CTL_LLF_WRITE; 8861 8862 CTL_DEBUG_PRINT(("ctl_cnw_cont: calling data_submit()\n")); 8863 retval = lun->backend->data_submit((union ctl_io *)ctsio); 8864 return (retval); 8865} 8866 8867int 8868ctl_cnw(struct ctl_scsiio *ctsio) 8869{ 8870 struct ctl_lun *lun; 8871 struct ctl_lba_len_flags *lbalen; 8872 uint64_t lba; 8873 uint32_t num_blocks; 8874 int flags, retval; 8875 8876 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 8877 8878 CTL_DEBUG_PRINT(("ctl_cnw: command: %#x\n", ctsio->cdb[0])); 8879 8880 flags = 0; 8881 switch (ctsio->cdb[0]) { 8882 case COMPARE_AND_WRITE: { 8883 struct scsi_compare_and_write *cdb; 8884 8885 cdb = (struct scsi_compare_and_write *)ctsio->cdb; 8886 if (cdb->byte2 & SRW10_FUA) 8887 flags |= CTL_LLF_FUA; 8888 if (cdb->byte2 & SRW10_DPO) 8889 flags |= CTL_LLF_DPO; 8890 lba = scsi_8btou64(cdb->addr); 8891 num_blocks = cdb->length; 8892 break; 8893 } 8894 default: 8895 /* 8896 * We got a command we don't support. This shouldn't 8897 * happen, commands should be filtered out above us. 8898 */ 8899 ctl_set_invalid_opcode(ctsio); 8900 ctl_done((union ctl_io *)ctsio); 8901 8902 return (CTL_RETVAL_COMPLETE); 8903 break; /* NOTREACHED */ 8904 } 8905 8906 /* 8907 * The first check is to make sure we're in bounds, the second 8908 * check is to catch wrap-around problems. If the lba + num blocks 8909 * is less than the lba, then we've wrapped around and the block 8910 * range is invalid anyway. 8911 */ 8912 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 8913 || ((lba + num_blocks) < lba)) { 8914 ctl_set_lba_out_of_range(ctsio, 8915 MAX(lba, lun->be_lun->maxlba + 1)); 8916 ctl_done((union ctl_io *)ctsio); 8917 return (CTL_RETVAL_COMPLETE); 8918 } 8919 8920 /* 8921 * According to SBC-3, a transfer length of 0 is not an error. 8922 */ 8923 if (num_blocks == 0) { 8924 ctl_set_success(ctsio); 8925 ctl_done((union ctl_io *)ctsio); 8926 return (CTL_RETVAL_COMPLETE); 8927 } 8928 8929 /* Set FUA if write cache is disabled. */ 8930 if ((lun->MODE_CACHING.flags1 & SCP_WCE) == 0) 8931 flags |= CTL_LLF_FUA; 8932 8933 ctsio->kern_total_len = 2 * num_blocks * lun->be_lun->blocksize; 8934 ctsio->kern_rel_offset = 0; 8935 8936 /* 8937 * Set the IO_CONT flag, so that if this I/O gets passed to 8938 * ctl_data_submit_done(), it'll get passed back to 8939 * ctl_ctl_cnw_cont() for further processing. 8940 */ 8941 ctsio->io_hdr.flags |= CTL_FLAG_IO_CONT; 8942 ctsio->io_cont = ctl_cnw_cont; 8943 8944 lbalen = (struct ctl_lba_len_flags *) 8945 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 8946 lbalen->lba = lba; 8947 lbalen->len = num_blocks; 8948 lbalen->flags = CTL_LLF_COMPARE | flags; 8949 8950 CTL_DEBUG_PRINT(("ctl_cnw: calling data_submit()\n")); 8951 retval = lun->backend->data_submit((union ctl_io *)ctsio); 8952 return (retval); 8953} 8954 8955int 8956ctl_verify(struct ctl_scsiio *ctsio) 8957{ 8958 struct ctl_lun *lun; 8959 struct ctl_lba_len_flags *lbalen; 8960 uint64_t lba; 8961 uint32_t num_blocks; 8962 int bytchk, flags; 8963 int retval; 8964 8965 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 8966 8967 CTL_DEBUG_PRINT(("ctl_verify: command: %#x\n", ctsio->cdb[0])); 8968 8969 bytchk = 0; 8970 flags = CTL_LLF_FUA; 8971 switch (ctsio->cdb[0]) { 8972 case VERIFY_10: { 8973 struct scsi_verify_10 *cdb; 8974 8975 cdb = (struct scsi_verify_10 *)ctsio->cdb; 8976 if (cdb->byte2 & SVFY_BYTCHK) 8977 bytchk = 1; 8978 if (cdb->byte2 & SVFY_DPO) 8979 flags |= CTL_LLF_DPO; 8980 lba = scsi_4btoul(cdb->addr); 8981 num_blocks = scsi_2btoul(cdb->length); 8982 break; 8983 } 8984 case VERIFY_12: { 8985 struct scsi_verify_12 *cdb; 8986 8987 cdb = (struct scsi_verify_12 *)ctsio->cdb; 8988 if (cdb->byte2 & SVFY_BYTCHK) 8989 bytchk = 1; 8990 if (cdb->byte2 & SVFY_DPO) 8991 flags |= CTL_LLF_DPO; 8992 lba = scsi_4btoul(cdb->addr); 8993 num_blocks = scsi_4btoul(cdb->length); 8994 break; 8995 } 8996 case VERIFY_16: { 8997 struct scsi_rw_16 *cdb; 8998 8999 cdb = (struct scsi_rw_16 *)ctsio->cdb; 9000 if (cdb->byte2 & SVFY_BYTCHK) 9001 bytchk = 1; 9002 if (cdb->byte2 & SVFY_DPO) 9003 flags |= CTL_LLF_DPO; 9004 lba = scsi_8btou64(cdb->addr); 9005 num_blocks = scsi_4btoul(cdb->length); 9006 break; 9007 } 9008 default: 9009 /* 9010 * We got a command we don't support. This shouldn't 9011 * happen, commands should be filtered out above us. 9012 */ 9013 ctl_set_invalid_opcode(ctsio); 9014 ctl_done((union ctl_io *)ctsio); 9015 return (CTL_RETVAL_COMPLETE); 9016 } 9017 9018 /* 9019 * The first check is to make sure we're in bounds, the second 9020 * check is to catch wrap-around problems. If the lba + num blocks 9021 * is less than the lba, then we've wrapped around and the block 9022 * range is invalid anyway. 9023 */ 9024 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 9025 || ((lba + num_blocks) < lba)) { 9026 ctl_set_lba_out_of_range(ctsio, 9027 MAX(lba, lun->be_lun->maxlba + 1)); 9028 ctl_done((union ctl_io *)ctsio); 9029 return (CTL_RETVAL_COMPLETE); 9030 } 9031 9032 /* 9033 * According to SBC-3, a transfer length of 0 is not an error. 9034 */ 9035 if (num_blocks == 0) { 9036 ctl_set_success(ctsio); 9037 ctl_done((union ctl_io *)ctsio); 9038 return (CTL_RETVAL_COMPLETE); 9039 } 9040 9041 lbalen = (struct ctl_lba_len_flags *) 9042 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 9043 lbalen->lba = lba; 9044 lbalen->len = num_blocks; 9045 if (bytchk) { 9046 lbalen->flags = CTL_LLF_COMPARE | flags; 9047 ctsio->kern_total_len = num_blocks * lun->be_lun->blocksize; 9048 } else { 9049 lbalen->flags = CTL_LLF_VERIFY | flags; 9050 ctsio->kern_total_len = 0; 9051 } 9052 ctsio->kern_rel_offset = 0; 9053 9054 CTL_DEBUG_PRINT(("ctl_verify: calling data_submit()\n")); 9055 retval = lun->backend->data_submit((union ctl_io *)ctsio); 9056 return (retval); 9057} 9058 9059int 9060ctl_report_luns(struct ctl_scsiio *ctsio) 9061{ 9062 struct ctl_softc *softc; 9063 struct scsi_report_luns *cdb; 9064 struct scsi_report_luns_data *lun_data; 9065 struct ctl_lun *lun, *request_lun; 9066 struct ctl_port *port; 9067 int num_luns, retval; 9068 uint32_t alloc_len, lun_datalen; 9069 int num_filled; 9070 uint32_t initidx, targ_lun_id, lun_id; 9071 9072 retval = CTL_RETVAL_COMPLETE; 9073 cdb = (struct scsi_report_luns *)ctsio->cdb; 9074 port = ctl_io_port(&ctsio->io_hdr); 9075 softc = port->ctl_softc; 9076 9077 CTL_DEBUG_PRINT(("ctl_report_luns\n")); 9078 9079 mtx_lock(&softc->ctl_lock); 9080 num_luns = 0; 9081 for (targ_lun_id = 0; targ_lun_id < CTL_MAX_LUNS; targ_lun_id++) { 9082 if (ctl_lun_map_from_port(port, targ_lun_id) != UINT32_MAX) 9083 num_luns++; 9084 } 9085 mtx_unlock(&softc->ctl_lock); 9086 9087 switch (cdb->select_report) { 9088 case RPL_REPORT_DEFAULT: 9089 case RPL_REPORT_ALL: 9090 case RPL_REPORT_NONSUBSID: 9091 break; 9092 case RPL_REPORT_WELLKNOWN: 9093 case RPL_REPORT_ADMIN: 9094 case RPL_REPORT_CONGLOM: 9095 num_luns = 0; 9096 break; 9097 default: 9098 ctl_set_invalid_field(ctsio, 9099 /*sks_valid*/ 1, 9100 /*command*/ 1, 9101 /*field*/ 2, 9102 /*bit_valid*/ 0, 9103 /*bit*/ 0); 9104 ctl_done((union ctl_io *)ctsio); 9105 return (retval); 9106 break; /* NOTREACHED */ 9107 } 9108 9109 alloc_len = scsi_4btoul(cdb->length); 9110 /* 9111 * The initiator has to allocate at least 16 bytes for this request, 9112 * so he can at least get the header and the first LUN. Otherwise 9113 * we reject the request (per SPC-3 rev 14, section 6.21). 9114 */ 9115 if (alloc_len < (sizeof(struct scsi_report_luns_data) + 9116 sizeof(struct scsi_report_luns_lundata))) { 9117 ctl_set_invalid_field(ctsio, 9118 /*sks_valid*/ 1, 9119 /*command*/ 1, 9120 /*field*/ 6, 9121 /*bit_valid*/ 0, 9122 /*bit*/ 0); 9123 ctl_done((union ctl_io *)ctsio); 9124 return (retval); 9125 } 9126 9127 request_lun = (struct ctl_lun *) 9128 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9129 9130 lun_datalen = sizeof(*lun_data) + 9131 (num_luns * sizeof(struct scsi_report_luns_lundata)); 9132 9133 ctsio->kern_data_ptr = malloc(lun_datalen, M_CTL, M_WAITOK | M_ZERO); 9134 lun_data = (struct scsi_report_luns_data *)ctsio->kern_data_ptr; 9135 ctsio->kern_sg_entries = 0; 9136 9137 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 9138 9139 mtx_lock(&softc->ctl_lock); 9140 for (targ_lun_id = 0, num_filled = 0; targ_lun_id < CTL_MAX_LUNS && num_filled < num_luns; targ_lun_id++) { 9141 lun_id = ctl_lun_map_from_port(port, targ_lun_id); 9142 if (lun_id == UINT32_MAX) 9143 continue; 9144 lun = softc->ctl_luns[lun_id]; 9145 if (lun == NULL) 9146 continue; 9147 9148 be64enc(lun_data->luns[num_filled++].lundata, 9149 ctl_encode_lun(targ_lun_id)); 9150 9151 /* 9152 * According to SPC-3, rev 14 section 6.21: 9153 * 9154 * "The execution of a REPORT LUNS command to any valid and 9155 * installed logical unit shall clear the REPORTED LUNS DATA 9156 * HAS CHANGED unit attention condition for all logical 9157 * units of that target with respect to the requesting 9158 * initiator. A valid and installed logical unit is one 9159 * having a PERIPHERAL QUALIFIER of 000b in the standard 9160 * INQUIRY data (see 6.4.2)." 9161 * 9162 * If request_lun is NULL, the LUN this report luns command 9163 * was issued to is either disabled or doesn't exist. In that 9164 * case, we shouldn't clear any pending lun change unit 9165 * attention. 9166 */ 9167 if (request_lun != NULL) { 9168 mtx_lock(&lun->lun_lock); 9169 ctl_clr_ua(lun, initidx, CTL_UA_LUN_CHANGE); 9170 mtx_unlock(&lun->lun_lock); 9171 } 9172 } 9173 mtx_unlock(&softc->ctl_lock); 9174 9175 /* 9176 * It's quite possible that we've returned fewer LUNs than we allocated 9177 * space for. Trim it. 9178 */ 9179 lun_datalen = sizeof(*lun_data) + 9180 (num_filled * sizeof(struct scsi_report_luns_lundata)); 9181 9182 if (lun_datalen < alloc_len) { 9183 ctsio->residual = alloc_len - lun_datalen; 9184 ctsio->kern_data_len = lun_datalen; 9185 ctsio->kern_total_len = lun_datalen; 9186 } else { 9187 ctsio->residual = 0; 9188 ctsio->kern_data_len = alloc_len; 9189 ctsio->kern_total_len = alloc_len; 9190 } 9191 ctsio->kern_data_resid = 0; 9192 ctsio->kern_rel_offset = 0; 9193 ctsio->kern_sg_entries = 0; 9194 9195 /* 9196 * We set this to the actual data length, regardless of how much 9197 * space we actually have to return results. If the user looks at 9198 * this value, he'll know whether or not he allocated enough space 9199 * and reissue the command if necessary. We don't support well 9200 * known logical units, so if the user asks for that, return none. 9201 */ 9202 scsi_ulto4b(lun_datalen - 8, lun_data->length); 9203 9204 /* 9205 * We can only return SCSI_STATUS_CHECK_COND when we can't satisfy 9206 * this request. 9207 */ 9208 ctl_set_success(ctsio); 9209 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9210 ctsio->be_move_done = ctl_config_move_done; 9211 ctl_datamove((union ctl_io *)ctsio); 9212 return (retval); 9213} 9214 9215int 9216ctl_request_sense(struct ctl_scsiio *ctsio) 9217{ 9218 struct scsi_request_sense *cdb; 9219 struct scsi_sense_data *sense_ptr; 9220 struct ctl_softc *softc; 9221 struct ctl_lun *lun; 9222 uint32_t initidx; 9223 int have_error; 9224 u_int sense_len = SSD_FULL_SIZE; 9225 scsi_sense_data_type sense_format; 9226 ctl_ua_type ua_type; 9227 uint8_t asc = 0, ascq = 0; 9228 9229 cdb = (struct scsi_request_sense *)ctsio->cdb; 9230 9231 softc = control_softc; 9232 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9233 9234 CTL_DEBUG_PRINT(("ctl_request_sense\n")); 9235 9236 /* 9237 * Determine which sense format the user wants. 9238 */ 9239 if (cdb->byte2 & SRS_DESC) 9240 sense_format = SSD_TYPE_DESC; 9241 else 9242 sense_format = SSD_TYPE_FIXED; 9243 9244 ctsio->kern_data_ptr = malloc(sizeof(*sense_ptr), M_CTL, M_WAITOK); 9245 sense_ptr = (struct scsi_sense_data *)ctsio->kern_data_ptr; 9246 ctsio->kern_sg_entries = 0; 9247 9248 /* 9249 * struct scsi_sense_data, which is currently set to 256 bytes, is 9250 * larger than the largest allowed value for the length field in the 9251 * REQUEST SENSE CDB, which is 252 bytes as of SPC-4. 9252 */ 9253 ctsio->residual = 0; 9254 ctsio->kern_data_len = cdb->length; 9255 ctsio->kern_total_len = cdb->length; 9256 9257 ctsio->kern_data_resid = 0; 9258 ctsio->kern_rel_offset = 0; 9259 ctsio->kern_sg_entries = 0; 9260 9261 /* 9262 * If we don't have a LUN, we don't have any pending sense. 9263 */ 9264 if (lun == NULL || 9265 ((lun->flags & CTL_LUN_PRIMARY_SC) == 0 && 9266 softc->ha_link < CTL_HA_LINK_UNKNOWN)) { 9267 /* "Logical unit not supported" */ 9268 ctl_set_sense_data(sense_ptr, &sense_len, NULL, sense_format, 9269 /*current_error*/ 1, 9270 /*sense_key*/ SSD_KEY_ILLEGAL_REQUEST, 9271 /*asc*/ 0x25, 9272 /*ascq*/ 0x00, 9273 SSD_ELEM_NONE); 9274 goto send; 9275 } 9276 9277 have_error = 0; 9278 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 9279 /* 9280 * Check for pending sense, and then for pending unit attentions. 9281 * Pending sense gets returned first, then pending unit attentions. 9282 */ 9283 mtx_lock(&lun->lun_lock); 9284#ifdef CTL_WITH_CA 9285 if (ctl_is_set(lun->have_ca, initidx)) { 9286 scsi_sense_data_type stored_format; 9287 9288 /* 9289 * Check to see which sense format was used for the stored 9290 * sense data. 9291 */ 9292 stored_format = scsi_sense_type(&lun->pending_sense[initidx]); 9293 9294 /* 9295 * If the user requested a different sense format than the 9296 * one we stored, then we need to convert it to the other 9297 * format. If we're going from descriptor to fixed format 9298 * sense data, we may lose things in translation, depending 9299 * on what options were used. 9300 * 9301 * If the stored format is SSD_TYPE_NONE (i.e. invalid), 9302 * for some reason we'll just copy it out as-is. 9303 */ 9304 if ((stored_format == SSD_TYPE_FIXED) 9305 && (sense_format == SSD_TYPE_DESC)) 9306 ctl_sense_to_desc((struct scsi_sense_data_fixed *) 9307 &lun->pending_sense[initidx], 9308 (struct scsi_sense_data_desc *)sense_ptr); 9309 else if ((stored_format == SSD_TYPE_DESC) 9310 && (sense_format == SSD_TYPE_FIXED)) 9311 ctl_sense_to_fixed((struct scsi_sense_data_desc *) 9312 &lun->pending_sense[initidx], 9313 (struct scsi_sense_data_fixed *)sense_ptr); 9314 else 9315 memcpy(sense_ptr, &lun->pending_sense[initidx], 9316 MIN(sizeof(*sense_ptr), 9317 sizeof(lun->pending_sense[initidx]))); 9318 9319 ctl_clear_mask(lun->have_ca, initidx); 9320 have_error = 1; 9321 } else 9322#endif 9323 if (have_error == 0) { 9324 ua_type = ctl_build_ua(lun, initidx, sense_ptr, &sense_len, 9325 sense_format); 9326 if (ua_type != CTL_UA_NONE) 9327 have_error = 1; 9328 } 9329 if (have_error == 0) { 9330 /* 9331 * Report informational exception if have one and allowed. 9332 */ 9333 if (lun->MODE_IE.mrie != SIEP_MRIE_NO) { 9334 asc = lun->ie_asc; 9335 ascq = lun->ie_ascq; 9336 } 9337 ctl_set_sense_data(sense_ptr, &sense_len, lun, sense_format, 9338 /*current_error*/ 1, 9339 /*sense_key*/ SSD_KEY_NO_SENSE, 9340 /*asc*/ asc, 9341 /*ascq*/ ascq, 9342 SSD_ELEM_NONE); 9343 } 9344 mtx_unlock(&lun->lun_lock); 9345 9346send: 9347 /* 9348 * We report the SCSI status as OK, since the status of the command 9349 * itself is OK. We're reporting sense as parameter data. 9350 */ 9351 ctl_set_success(ctsio); 9352 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9353 ctsio->be_move_done = ctl_config_move_done; 9354 ctl_datamove((union ctl_io *)ctsio); 9355 return (CTL_RETVAL_COMPLETE); 9356} 9357 9358int 9359ctl_tur(struct ctl_scsiio *ctsio) 9360{ 9361 9362 CTL_DEBUG_PRINT(("ctl_tur\n")); 9363 9364 ctl_set_success(ctsio); 9365 ctl_done((union ctl_io *)ctsio); 9366 9367 return (CTL_RETVAL_COMPLETE); 9368} 9369 9370/* 9371 * SCSI VPD page 0x00, the Supported VPD Pages page. 9372 */ 9373static int 9374ctl_inquiry_evpd_supported(struct ctl_scsiio *ctsio, int alloc_len) 9375{ 9376 struct scsi_vpd_supported_pages *pages; 9377 int sup_page_size; 9378 struct ctl_lun *lun; 9379 int p; 9380 9381 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9382 9383 sup_page_size = sizeof(struct scsi_vpd_supported_pages) * 9384 SCSI_EVPD_NUM_SUPPORTED_PAGES; 9385 ctsio->kern_data_ptr = malloc(sup_page_size, M_CTL, M_WAITOK | M_ZERO); 9386 pages = (struct scsi_vpd_supported_pages *)ctsio->kern_data_ptr; 9387 ctsio->kern_sg_entries = 0; 9388 9389 if (sup_page_size < alloc_len) { 9390 ctsio->residual = alloc_len - sup_page_size; 9391 ctsio->kern_data_len = sup_page_size; 9392 ctsio->kern_total_len = sup_page_size; 9393 } else { 9394 ctsio->residual = 0; 9395 ctsio->kern_data_len = alloc_len; 9396 ctsio->kern_total_len = alloc_len; 9397 } 9398 ctsio->kern_data_resid = 0; 9399 ctsio->kern_rel_offset = 0; 9400 ctsio->kern_sg_entries = 0; 9401 9402 /* 9403 * The control device is always connected. The disk device, on the 9404 * other hand, may not be online all the time. Need to change this 9405 * to figure out whether the disk device is actually online or not. 9406 */ 9407 if (lun != NULL) 9408 pages->device = (SID_QUAL_LU_CONNECTED << 5) | 9409 lun->be_lun->lun_type; 9410 else 9411 pages->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9412 9413 p = 0; 9414 /* Supported VPD pages */ 9415 pages->page_list[p++] = SVPD_SUPPORTED_PAGES; 9416 /* Serial Number */ 9417 pages->page_list[p++] = SVPD_UNIT_SERIAL_NUMBER; 9418 /* Device Identification */ 9419 pages->page_list[p++] = SVPD_DEVICE_ID; 9420 /* Extended INQUIRY Data */ 9421 pages->page_list[p++] = SVPD_EXTENDED_INQUIRY_DATA; 9422 /* Mode Page Policy */ 9423 pages->page_list[p++] = SVPD_MODE_PAGE_POLICY; 9424 /* SCSI Ports */ 9425 pages->page_list[p++] = SVPD_SCSI_PORTS; 9426 /* Third-party Copy */ 9427 pages->page_list[p++] = SVPD_SCSI_TPC; 9428 if (lun != NULL && lun->be_lun->lun_type == T_DIRECT) { 9429 /* Block limits */ 9430 pages->page_list[p++] = SVPD_BLOCK_LIMITS; 9431 /* Block Device Characteristics */ 9432 pages->page_list[p++] = SVPD_BDC; 9433 /* Logical Block Provisioning */ 9434 pages->page_list[p++] = SVPD_LBP; 9435 } 9436 pages->length = p; 9437 9438 ctl_set_success(ctsio); 9439 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9440 ctsio->be_move_done = ctl_config_move_done; 9441 ctl_datamove((union ctl_io *)ctsio); 9442 return (CTL_RETVAL_COMPLETE); 9443} 9444 9445/* 9446 * SCSI VPD page 0x80, the Unit Serial Number page. 9447 */ 9448static int 9449ctl_inquiry_evpd_serial(struct ctl_scsiio *ctsio, int alloc_len) 9450{ 9451 struct scsi_vpd_unit_serial_number *sn_ptr; 9452 struct ctl_lun *lun; 9453 int data_len; 9454 9455 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9456 9457 data_len = 4 + CTL_SN_LEN; 9458 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9459 sn_ptr = (struct scsi_vpd_unit_serial_number *)ctsio->kern_data_ptr; 9460 if (data_len < alloc_len) { 9461 ctsio->residual = alloc_len - data_len; 9462 ctsio->kern_data_len = data_len; 9463 ctsio->kern_total_len = data_len; 9464 } else { 9465 ctsio->residual = 0; 9466 ctsio->kern_data_len = alloc_len; 9467 ctsio->kern_total_len = alloc_len; 9468 } 9469 ctsio->kern_data_resid = 0; 9470 ctsio->kern_rel_offset = 0; 9471 ctsio->kern_sg_entries = 0; 9472 9473 /* 9474 * The control device is always connected. The disk device, on the 9475 * other hand, may not be online all the time. Need to change this 9476 * to figure out whether the disk device is actually online or not. 9477 */ 9478 if (lun != NULL) 9479 sn_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9480 lun->be_lun->lun_type; 9481 else 9482 sn_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9483 9484 sn_ptr->page_code = SVPD_UNIT_SERIAL_NUMBER; 9485 sn_ptr->length = CTL_SN_LEN; 9486 /* 9487 * If we don't have a LUN, we just leave the serial number as 9488 * all spaces. 9489 */ 9490 if (lun != NULL) { 9491 strncpy((char *)sn_ptr->serial_num, 9492 (char *)lun->be_lun->serial_num, CTL_SN_LEN); 9493 } else 9494 memset(sn_ptr->serial_num, 0x20, CTL_SN_LEN); 9495 9496 ctl_set_success(ctsio); 9497 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9498 ctsio->be_move_done = ctl_config_move_done; 9499 ctl_datamove((union ctl_io *)ctsio); 9500 return (CTL_RETVAL_COMPLETE); 9501} 9502 9503 9504/* 9505 * SCSI VPD page 0x86, the Extended INQUIRY Data page. 9506 */ 9507static int 9508ctl_inquiry_evpd_eid(struct ctl_scsiio *ctsio, int alloc_len) 9509{ 9510 struct scsi_vpd_extended_inquiry_data *eid_ptr; 9511 struct ctl_lun *lun; 9512 int data_len; 9513 9514 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9515 9516 data_len = sizeof(struct scsi_vpd_extended_inquiry_data); 9517 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9518 eid_ptr = (struct scsi_vpd_extended_inquiry_data *)ctsio->kern_data_ptr; 9519 ctsio->kern_sg_entries = 0; 9520 9521 if (data_len < alloc_len) { 9522 ctsio->residual = alloc_len - data_len; 9523 ctsio->kern_data_len = data_len; 9524 ctsio->kern_total_len = data_len; 9525 } else { 9526 ctsio->residual = 0; 9527 ctsio->kern_data_len = alloc_len; 9528 ctsio->kern_total_len = alloc_len; 9529 } 9530 ctsio->kern_data_resid = 0; 9531 ctsio->kern_rel_offset = 0; 9532 ctsio->kern_sg_entries = 0; 9533 9534 /* 9535 * The control device is always connected. The disk device, on the 9536 * other hand, may not be online all the time. 9537 */ 9538 if (lun != NULL) 9539 eid_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9540 lun->be_lun->lun_type; 9541 else 9542 eid_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9543 eid_ptr->page_code = SVPD_EXTENDED_INQUIRY_DATA; 9544 scsi_ulto2b(data_len - 4, eid_ptr->page_length); 9545 /* 9546 * We support head of queue, ordered and simple tags. 9547 */ 9548 eid_ptr->flags2 = SVPD_EID_HEADSUP | SVPD_EID_ORDSUP | SVPD_EID_SIMPSUP; 9549 /* 9550 * Volatile cache supported. 9551 */ 9552 eid_ptr->flags3 = SVPD_EID_V_SUP; 9553 9554 /* 9555 * This means that we clear the REPORTED LUNS DATA HAS CHANGED unit 9556 * attention for a particular IT nexus on all LUNs once we report 9557 * it to that nexus once. This bit is required as of SPC-4. 9558 */ 9559 eid_ptr->flags4 = SVPD_EID_LUICLR; 9560 9561 /* 9562 * XXX KDM in order to correctly answer this, we would need 9563 * information from the SIM to determine how much sense data it 9564 * can send. So this would really be a path inquiry field, most 9565 * likely. This can be set to a maximum of 252 according to SPC-4, 9566 * but the hardware may or may not be able to support that much. 9567 * 0 just means that the maximum sense data length is not reported. 9568 */ 9569 eid_ptr->max_sense_length = 0; 9570 9571 ctl_set_success(ctsio); 9572 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9573 ctsio->be_move_done = ctl_config_move_done; 9574 ctl_datamove((union ctl_io *)ctsio); 9575 return (CTL_RETVAL_COMPLETE); 9576} 9577 9578static int 9579ctl_inquiry_evpd_mpp(struct ctl_scsiio *ctsio, int alloc_len) 9580{ 9581 struct scsi_vpd_mode_page_policy *mpp_ptr; 9582 struct ctl_lun *lun; 9583 int data_len; 9584 9585 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9586 9587 data_len = sizeof(struct scsi_vpd_mode_page_policy) + 9588 sizeof(struct scsi_vpd_mode_page_policy_descr); 9589 9590 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9591 mpp_ptr = (struct scsi_vpd_mode_page_policy *)ctsio->kern_data_ptr; 9592 ctsio->kern_sg_entries = 0; 9593 9594 if (data_len < alloc_len) { 9595 ctsio->residual = alloc_len - data_len; 9596 ctsio->kern_data_len = data_len; 9597 ctsio->kern_total_len = data_len; 9598 } else { 9599 ctsio->residual = 0; 9600 ctsio->kern_data_len = alloc_len; 9601 ctsio->kern_total_len = alloc_len; 9602 } 9603 ctsio->kern_data_resid = 0; 9604 ctsio->kern_rel_offset = 0; 9605 ctsio->kern_sg_entries = 0; 9606 9607 /* 9608 * The control device is always connected. The disk device, on the 9609 * other hand, may not be online all the time. 9610 */ 9611 if (lun != NULL) 9612 mpp_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9613 lun->be_lun->lun_type; 9614 else 9615 mpp_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9616 mpp_ptr->page_code = SVPD_MODE_PAGE_POLICY; 9617 scsi_ulto2b(data_len - 4, mpp_ptr->page_length); 9618 mpp_ptr->descr[0].page_code = 0x3f; 9619 mpp_ptr->descr[0].subpage_code = 0xff; 9620 mpp_ptr->descr[0].policy = SVPD_MPP_SHARED; 9621 9622 ctl_set_success(ctsio); 9623 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9624 ctsio->be_move_done = ctl_config_move_done; 9625 ctl_datamove((union ctl_io *)ctsio); 9626 return (CTL_RETVAL_COMPLETE); 9627} 9628 9629/* 9630 * SCSI VPD page 0x83, the Device Identification page. 9631 */ 9632static int 9633ctl_inquiry_evpd_devid(struct ctl_scsiio *ctsio, int alloc_len) 9634{ 9635 struct scsi_vpd_device_id *devid_ptr; 9636 struct scsi_vpd_id_descriptor *desc; 9637 struct ctl_softc *softc; 9638 struct ctl_lun *lun; 9639 struct ctl_port *port; 9640 int data_len, g; 9641 uint8_t proto; 9642 9643 softc = control_softc; 9644 9645 port = ctl_io_port(&ctsio->io_hdr); 9646 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9647 9648 data_len = sizeof(struct scsi_vpd_device_id) + 9649 sizeof(struct scsi_vpd_id_descriptor) + 9650 sizeof(struct scsi_vpd_id_rel_trgt_port_id) + 9651 sizeof(struct scsi_vpd_id_descriptor) + 9652 sizeof(struct scsi_vpd_id_trgt_port_grp_id); 9653 if (lun && lun->lun_devid) 9654 data_len += lun->lun_devid->len; 9655 if (port && port->port_devid) 9656 data_len += port->port_devid->len; 9657 if (port && port->target_devid) 9658 data_len += port->target_devid->len; 9659 9660 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9661 devid_ptr = (struct scsi_vpd_device_id *)ctsio->kern_data_ptr; 9662 ctsio->kern_sg_entries = 0; 9663 9664 if (data_len < alloc_len) { 9665 ctsio->residual = alloc_len - data_len; 9666 ctsio->kern_data_len = data_len; 9667 ctsio->kern_total_len = data_len; 9668 } else { 9669 ctsio->residual = 0; 9670 ctsio->kern_data_len = alloc_len; 9671 ctsio->kern_total_len = alloc_len; 9672 } 9673 ctsio->kern_data_resid = 0; 9674 ctsio->kern_rel_offset = 0; 9675 ctsio->kern_sg_entries = 0; 9676 9677 /* 9678 * The control device is always connected. The disk device, on the 9679 * other hand, may not be online all the time. 9680 */ 9681 if (lun != NULL) 9682 devid_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9683 lun->be_lun->lun_type; 9684 else 9685 devid_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9686 devid_ptr->page_code = SVPD_DEVICE_ID; 9687 scsi_ulto2b(data_len - 4, devid_ptr->length); 9688 9689 if (port && port->port_type == CTL_PORT_FC) 9690 proto = SCSI_PROTO_FC << 4; 9691 else if (port && port->port_type == CTL_PORT_ISCSI) 9692 proto = SCSI_PROTO_ISCSI << 4; 9693 else 9694 proto = SCSI_PROTO_SPI << 4; 9695 desc = (struct scsi_vpd_id_descriptor *)devid_ptr->desc_list; 9696 9697 /* 9698 * We're using a LUN association here. i.e., this device ID is a 9699 * per-LUN identifier. 9700 */ 9701 if (lun && lun->lun_devid) { 9702 memcpy(desc, lun->lun_devid->data, lun->lun_devid->len); 9703 desc = (struct scsi_vpd_id_descriptor *)((uint8_t *)desc + 9704 lun->lun_devid->len); 9705 } 9706 9707 /* 9708 * This is for the WWPN which is a port association. 9709 */ 9710 if (port && port->port_devid) { 9711 memcpy(desc, port->port_devid->data, port->port_devid->len); 9712 desc = (struct scsi_vpd_id_descriptor *)((uint8_t *)desc + 9713 port->port_devid->len); 9714 } 9715 9716 /* 9717 * This is for the Relative Target Port(type 4h) identifier 9718 */ 9719 desc->proto_codeset = proto | SVPD_ID_CODESET_BINARY; 9720 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_PORT | 9721 SVPD_ID_TYPE_RELTARG; 9722 desc->length = 4; 9723 scsi_ulto2b(ctsio->io_hdr.nexus.targ_port, &desc->identifier[2]); 9724 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 9725 sizeof(struct scsi_vpd_id_rel_trgt_port_id)); 9726 9727 /* 9728 * This is for the Target Port Group(type 5h) identifier 9729 */ 9730 desc->proto_codeset = proto | SVPD_ID_CODESET_BINARY; 9731 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_PORT | 9732 SVPD_ID_TYPE_TPORTGRP; 9733 desc->length = 4; 9734 if (softc->is_single || 9735 (port && port->status & CTL_PORT_STATUS_HA_SHARED)) 9736 g = 1; 9737 else 9738 g = 2 + ctsio->io_hdr.nexus.targ_port / softc->port_cnt; 9739 scsi_ulto2b(g, &desc->identifier[2]); 9740 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 9741 sizeof(struct scsi_vpd_id_trgt_port_grp_id)); 9742 9743 /* 9744 * This is for the Target identifier 9745 */ 9746 if (port && port->target_devid) { 9747 memcpy(desc, port->target_devid->data, port->target_devid->len); 9748 } 9749 9750 ctl_set_success(ctsio); 9751 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9752 ctsio->be_move_done = ctl_config_move_done; 9753 ctl_datamove((union ctl_io *)ctsio); 9754 return (CTL_RETVAL_COMPLETE); 9755} 9756 9757static int 9758ctl_inquiry_evpd_scsi_ports(struct ctl_scsiio *ctsio, int alloc_len) 9759{ 9760 struct ctl_softc *softc = control_softc; 9761 struct scsi_vpd_scsi_ports *sp; 9762 struct scsi_vpd_port_designation *pd; 9763 struct scsi_vpd_port_designation_cont *pdc; 9764 struct ctl_lun *lun; 9765 struct ctl_port *port; 9766 int data_len, num_target_ports, iid_len, id_len; 9767 9768 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9769 9770 num_target_ports = 0; 9771 iid_len = 0; 9772 id_len = 0; 9773 mtx_lock(&softc->ctl_lock); 9774 STAILQ_FOREACH(port, &softc->port_list, links) { 9775 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 9776 continue; 9777 if (lun != NULL && 9778 ctl_lun_map_to_port(port, lun->lun) == UINT32_MAX) 9779 continue; 9780 num_target_ports++; 9781 if (port->init_devid) 9782 iid_len += port->init_devid->len; 9783 if (port->port_devid) 9784 id_len += port->port_devid->len; 9785 } 9786 mtx_unlock(&softc->ctl_lock); 9787 9788 data_len = sizeof(struct scsi_vpd_scsi_ports) + 9789 num_target_ports * (sizeof(struct scsi_vpd_port_designation) + 9790 sizeof(struct scsi_vpd_port_designation_cont)) + iid_len + id_len; 9791 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9792 sp = (struct scsi_vpd_scsi_ports *)ctsio->kern_data_ptr; 9793 ctsio->kern_sg_entries = 0; 9794 9795 if (data_len < alloc_len) { 9796 ctsio->residual = alloc_len - data_len; 9797 ctsio->kern_data_len = data_len; 9798 ctsio->kern_total_len = data_len; 9799 } else { 9800 ctsio->residual = 0; 9801 ctsio->kern_data_len = alloc_len; 9802 ctsio->kern_total_len = alloc_len; 9803 } 9804 ctsio->kern_data_resid = 0; 9805 ctsio->kern_rel_offset = 0; 9806 ctsio->kern_sg_entries = 0; 9807 9808 /* 9809 * The control device is always connected. The disk device, on the 9810 * other hand, may not be online all the time. Need to change this 9811 * to figure out whether the disk device is actually online or not. 9812 */ 9813 if (lun != NULL) 9814 sp->device = (SID_QUAL_LU_CONNECTED << 5) | 9815 lun->be_lun->lun_type; 9816 else 9817 sp->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9818 9819 sp->page_code = SVPD_SCSI_PORTS; 9820 scsi_ulto2b(data_len - sizeof(struct scsi_vpd_scsi_ports), 9821 sp->page_length); 9822 pd = &sp->design[0]; 9823 9824 mtx_lock(&softc->ctl_lock); 9825 STAILQ_FOREACH(port, &softc->port_list, links) { 9826 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 9827 continue; 9828 if (lun != NULL && 9829 ctl_lun_map_to_port(port, lun->lun) == UINT32_MAX) 9830 continue; 9831 scsi_ulto2b(port->targ_port, pd->relative_port_id); 9832 if (port->init_devid) { 9833 iid_len = port->init_devid->len; 9834 memcpy(pd->initiator_transportid, 9835 port->init_devid->data, port->init_devid->len); 9836 } else 9837 iid_len = 0; 9838 scsi_ulto2b(iid_len, pd->initiator_transportid_length); 9839 pdc = (struct scsi_vpd_port_designation_cont *) 9840 (&pd->initiator_transportid[iid_len]); 9841 if (port->port_devid) { 9842 id_len = port->port_devid->len; 9843 memcpy(pdc->target_port_descriptors, 9844 port->port_devid->data, port->port_devid->len); 9845 } else 9846 id_len = 0; 9847 scsi_ulto2b(id_len, pdc->target_port_descriptors_length); 9848 pd = (struct scsi_vpd_port_designation *) 9849 ((uint8_t *)pdc->target_port_descriptors + id_len); 9850 } 9851 mtx_unlock(&softc->ctl_lock); 9852 9853 ctl_set_success(ctsio); 9854 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9855 ctsio->be_move_done = ctl_config_move_done; 9856 ctl_datamove((union ctl_io *)ctsio); 9857 return (CTL_RETVAL_COMPLETE); 9858} 9859 9860static int 9861ctl_inquiry_evpd_block_limits(struct ctl_scsiio *ctsio, int alloc_len) 9862{ 9863 struct scsi_vpd_block_limits *bl_ptr; 9864 struct ctl_lun *lun; 9865 uint64_t ival; 9866 9867 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9868 9869 ctsio->kern_data_ptr = malloc(sizeof(*bl_ptr), M_CTL, M_WAITOK | M_ZERO); 9870 bl_ptr = (struct scsi_vpd_block_limits *)ctsio->kern_data_ptr; 9871 ctsio->kern_sg_entries = 0; 9872 9873 if (sizeof(*bl_ptr) < alloc_len) { 9874 ctsio->residual = alloc_len - sizeof(*bl_ptr); 9875 ctsio->kern_data_len = sizeof(*bl_ptr); 9876 ctsio->kern_total_len = sizeof(*bl_ptr); 9877 } else { 9878 ctsio->residual = 0; 9879 ctsio->kern_data_len = alloc_len; 9880 ctsio->kern_total_len = alloc_len; 9881 } 9882 ctsio->kern_data_resid = 0; 9883 ctsio->kern_rel_offset = 0; 9884 ctsio->kern_sg_entries = 0; 9885 9886 /* 9887 * The control device is always connected. The disk device, on the 9888 * other hand, may not be online all the time. Need to change this 9889 * to figure out whether the disk device is actually online or not. 9890 */ 9891 if (lun != NULL) 9892 bl_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9893 lun->be_lun->lun_type; 9894 else 9895 bl_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9896 9897 bl_ptr->page_code = SVPD_BLOCK_LIMITS; 9898 scsi_ulto2b(sizeof(*bl_ptr) - 4, bl_ptr->page_length); 9899 bl_ptr->max_cmp_write_len = 0xff; 9900 scsi_ulto4b(0xffffffff, bl_ptr->max_txfer_len); 9901 if (lun != NULL) { 9902 scsi_ulto4b(lun->be_lun->opttxferlen, bl_ptr->opt_txfer_len); 9903 if (lun->be_lun->flags & CTL_LUN_FLAG_UNMAP) { 9904 ival = 0xffffffff; 9905 ctl_get_opt_number(&lun->be_lun->options, 9906 "unmap_max_lba", &ival); 9907 scsi_ulto4b(ival, bl_ptr->max_unmap_lba_cnt); 9908 ival = 0xffffffff; 9909 ctl_get_opt_number(&lun->be_lun->options, 9910 "unmap_max_descr", &ival); 9911 scsi_ulto4b(ival, bl_ptr->max_unmap_blk_cnt); 9912 if (lun->be_lun->ublockexp != 0) { 9913 scsi_ulto4b((1 << lun->be_lun->ublockexp), 9914 bl_ptr->opt_unmap_grain); 9915 scsi_ulto4b(0x80000000 | lun->be_lun->ublockoff, 9916 bl_ptr->unmap_grain_align); 9917 } 9918 } 9919 scsi_ulto4b(lun->be_lun->atomicblock, 9920 bl_ptr->max_atomic_transfer_length); 9921 scsi_ulto4b(0, bl_ptr->atomic_alignment); 9922 scsi_ulto4b(0, bl_ptr->atomic_transfer_length_granularity); 9923 scsi_ulto4b(0, bl_ptr->max_atomic_transfer_length_with_atomic_boundary); 9924 scsi_ulto4b(0, bl_ptr->max_atomic_boundary_size); 9925 ival = UINT64_MAX; 9926 ctl_get_opt_number(&lun->be_lun->options, "write_same_max_lba", &ival); 9927 scsi_u64to8b(ival, bl_ptr->max_write_same_length); 9928 } 9929 9930 ctl_set_success(ctsio); 9931 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9932 ctsio->be_move_done = ctl_config_move_done; 9933 ctl_datamove((union ctl_io *)ctsio); 9934 return (CTL_RETVAL_COMPLETE); 9935} 9936 9937static int 9938ctl_inquiry_evpd_bdc(struct ctl_scsiio *ctsio, int alloc_len) 9939{ 9940 struct scsi_vpd_block_device_characteristics *bdc_ptr; 9941 struct ctl_lun *lun; 9942 const char *value; 9943 u_int i; 9944 9945 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9946 9947 ctsio->kern_data_ptr = malloc(sizeof(*bdc_ptr), M_CTL, M_WAITOK | M_ZERO); 9948 bdc_ptr = (struct scsi_vpd_block_device_characteristics *)ctsio->kern_data_ptr; 9949 ctsio->kern_sg_entries = 0; 9950 9951 if (sizeof(*bdc_ptr) < alloc_len) { 9952 ctsio->residual = alloc_len - sizeof(*bdc_ptr); 9953 ctsio->kern_data_len = sizeof(*bdc_ptr); 9954 ctsio->kern_total_len = sizeof(*bdc_ptr); 9955 } else { 9956 ctsio->residual = 0; 9957 ctsio->kern_data_len = alloc_len; 9958 ctsio->kern_total_len = alloc_len; 9959 } 9960 ctsio->kern_data_resid = 0; 9961 ctsio->kern_rel_offset = 0; 9962 ctsio->kern_sg_entries = 0; 9963 9964 /* 9965 * The control device is always connected. The disk device, on the 9966 * other hand, may not be online all the time. Need to change this 9967 * to figure out whether the disk device is actually online or not. 9968 */ 9969 if (lun != NULL) 9970 bdc_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9971 lun->be_lun->lun_type; 9972 else 9973 bdc_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9974 bdc_ptr->page_code = SVPD_BDC; 9975 scsi_ulto2b(sizeof(*bdc_ptr) - 4, bdc_ptr->page_length); 9976 if (lun != NULL && 9977 (value = ctl_get_opt(&lun->be_lun->options, "rpm")) != NULL) 9978 i = strtol(value, NULL, 0); 9979 else 9980 i = CTL_DEFAULT_ROTATION_RATE; 9981 scsi_ulto2b(i, bdc_ptr->medium_rotation_rate); 9982 if (lun != NULL && 9983 (value = ctl_get_opt(&lun->be_lun->options, "formfactor")) != NULL) 9984 i = strtol(value, NULL, 0); 9985 else 9986 i = 0; 9987 bdc_ptr->wab_wac_ff = (i & 0x0f); 9988 bdc_ptr->flags = SVPD_FUAB | SVPD_VBULS; 9989 9990 ctl_set_success(ctsio); 9991 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9992 ctsio->be_move_done = ctl_config_move_done; 9993 ctl_datamove((union ctl_io *)ctsio); 9994 return (CTL_RETVAL_COMPLETE); 9995} 9996 9997static int 9998ctl_inquiry_evpd_lbp(struct ctl_scsiio *ctsio, int alloc_len) 9999{ 10000 struct scsi_vpd_logical_block_prov *lbp_ptr; 10001 struct ctl_lun *lun; 10002 const char *value; 10003 10004 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10005 10006 ctsio->kern_data_ptr = malloc(sizeof(*lbp_ptr), M_CTL, M_WAITOK | M_ZERO); 10007 lbp_ptr = (struct scsi_vpd_logical_block_prov *)ctsio->kern_data_ptr; 10008 ctsio->kern_sg_entries = 0; 10009 10010 if (sizeof(*lbp_ptr) < alloc_len) { 10011 ctsio->residual = alloc_len - sizeof(*lbp_ptr); 10012 ctsio->kern_data_len = sizeof(*lbp_ptr); 10013 ctsio->kern_total_len = sizeof(*lbp_ptr); 10014 } else { 10015 ctsio->residual = 0; 10016 ctsio->kern_data_len = alloc_len; 10017 ctsio->kern_total_len = alloc_len; 10018 } 10019 ctsio->kern_data_resid = 0; 10020 ctsio->kern_rel_offset = 0; 10021 ctsio->kern_sg_entries = 0; 10022 10023 /* 10024 * The control device is always connected. The disk device, on the 10025 * other hand, may not be online all the time. Need to change this 10026 * to figure out whether the disk device is actually online or not. 10027 */ 10028 if (lun != NULL) 10029 lbp_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10030 lun->be_lun->lun_type; 10031 else 10032 lbp_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10033 10034 lbp_ptr->page_code = SVPD_LBP; 10035 scsi_ulto2b(sizeof(*lbp_ptr) - 4, lbp_ptr->page_length); 10036 lbp_ptr->threshold_exponent = CTL_LBP_EXPONENT; 10037 if (lun != NULL && lun->be_lun->flags & CTL_LUN_FLAG_UNMAP) { 10038 lbp_ptr->flags = SVPD_LBP_UNMAP | SVPD_LBP_WS16 | 10039 SVPD_LBP_WS10 | SVPD_LBP_RZ | SVPD_LBP_ANC_SUP; 10040 value = ctl_get_opt(&lun->be_lun->options, "provisioning_type"); 10041 if (value != NULL) { 10042 if (strcmp(value, "resource") == 0) 10043 lbp_ptr->prov_type = SVPD_LBP_RESOURCE; 10044 else if (strcmp(value, "thin") == 0) 10045 lbp_ptr->prov_type = SVPD_LBP_THIN; 10046 } else 10047 lbp_ptr->prov_type = SVPD_LBP_THIN; 10048 } 10049 10050 ctl_set_success(ctsio); 10051 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10052 ctsio->be_move_done = ctl_config_move_done; 10053 ctl_datamove((union ctl_io *)ctsio); 10054 return (CTL_RETVAL_COMPLETE); 10055} 10056 10057/* 10058 * INQUIRY with the EVPD bit set. 10059 */ 10060static int 10061ctl_inquiry_evpd(struct ctl_scsiio *ctsio) 10062{ 10063 struct ctl_lun *lun; 10064 struct scsi_inquiry *cdb; 10065 int alloc_len, retval; 10066 10067 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10068 cdb = (struct scsi_inquiry *)ctsio->cdb; 10069 alloc_len = scsi_2btoul(cdb->length); 10070 10071 switch (cdb->page_code) { 10072 case SVPD_SUPPORTED_PAGES: 10073 retval = ctl_inquiry_evpd_supported(ctsio, alloc_len); 10074 break; 10075 case SVPD_UNIT_SERIAL_NUMBER: 10076 retval = ctl_inquiry_evpd_serial(ctsio, alloc_len); 10077 break; 10078 case SVPD_DEVICE_ID: 10079 retval = ctl_inquiry_evpd_devid(ctsio, alloc_len); 10080 break; 10081 case SVPD_EXTENDED_INQUIRY_DATA: 10082 retval = ctl_inquiry_evpd_eid(ctsio, alloc_len); 10083 break; 10084 case SVPD_MODE_PAGE_POLICY: 10085 retval = ctl_inquiry_evpd_mpp(ctsio, alloc_len); 10086 break; 10087 case SVPD_SCSI_PORTS: 10088 retval = ctl_inquiry_evpd_scsi_ports(ctsio, alloc_len); 10089 break; 10090 case SVPD_SCSI_TPC: 10091 retval = ctl_inquiry_evpd_tpc(ctsio, alloc_len); 10092 break; 10093 case SVPD_BLOCK_LIMITS: 10094 if (lun == NULL || lun->be_lun->lun_type != T_DIRECT) 10095 goto err; 10096 retval = ctl_inquiry_evpd_block_limits(ctsio, alloc_len); 10097 break; 10098 case SVPD_BDC: 10099 if (lun == NULL || lun->be_lun->lun_type != T_DIRECT) 10100 goto err; 10101 retval = ctl_inquiry_evpd_bdc(ctsio, alloc_len); 10102 break; 10103 case SVPD_LBP: 10104 if (lun == NULL || lun->be_lun->lun_type != T_DIRECT) 10105 goto err; 10106 retval = ctl_inquiry_evpd_lbp(ctsio, alloc_len); 10107 break; 10108 default: 10109err: 10110 ctl_set_invalid_field(ctsio, 10111 /*sks_valid*/ 1, 10112 /*command*/ 1, 10113 /*field*/ 2, 10114 /*bit_valid*/ 0, 10115 /*bit*/ 0); 10116 ctl_done((union ctl_io *)ctsio); 10117 retval = CTL_RETVAL_COMPLETE; 10118 break; 10119 } 10120 10121 return (retval); 10122} 10123 10124/* 10125 * Standard INQUIRY data. 10126 */ 10127static int 10128ctl_inquiry_std(struct ctl_scsiio *ctsio) 10129{ 10130 struct scsi_inquiry_data *inq_ptr; 10131 struct scsi_inquiry *cdb; 10132 struct ctl_softc *softc = control_softc; 10133 struct ctl_port *port; 10134 struct ctl_lun *lun; 10135 char *val; 10136 uint32_t alloc_len, data_len; 10137 ctl_port_type port_type; 10138 10139 port = ctl_io_port(&ctsio->io_hdr); 10140 port_type = port->port_type; 10141 if (port_type == CTL_PORT_IOCTL || port_type == CTL_PORT_INTERNAL) 10142 port_type = CTL_PORT_SCSI; 10143 10144 lun = ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10145 cdb = (struct scsi_inquiry *)ctsio->cdb; 10146 alloc_len = scsi_2btoul(cdb->length); 10147 10148 /* 10149 * We malloc the full inquiry data size here and fill it 10150 * in. If the user only asks for less, we'll give him 10151 * that much. 10152 */ 10153 data_len = offsetof(struct scsi_inquiry_data, vendor_specific1); 10154 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 10155 inq_ptr = (struct scsi_inquiry_data *)ctsio->kern_data_ptr; 10156 ctsio->kern_sg_entries = 0; 10157 ctsio->kern_data_resid = 0; 10158 ctsio->kern_rel_offset = 0; 10159 10160 if (data_len < alloc_len) { 10161 ctsio->residual = alloc_len - data_len; 10162 ctsio->kern_data_len = data_len; 10163 ctsio->kern_total_len = data_len; 10164 } else { 10165 ctsio->residual = 0; 10166 ctsio->kern_data_len = alloc_len; 10167 ctsio->kern_total_len = alloc_len; 10168 } 10169 10170 if (lun != NULL) { 10171 if ((lun->flags & CTL_LUN_PRIMARY_SC) || 10172 softc->ha_link >= CTL_HA_LINK_UNKNOWN) { 10173 inq_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10174 lun->be_lun->lun_type; 10175 } else { 10176 inq_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | 10177 lun->be_lun->lun_type; 10178 } 10179 if (lun->flags & CTL_LUN_REMOVABLE) 10180 inq_ptr->dev_qual2 |= SID_RMB; 10181 } else 10182 inq_ptr->device = (SID_QUAL_BAD_LU << 5) | T_NODEVICE; 10183 10184 /* RMB in byte 2 is 0 */ 10185 inq_ptr->version = SCSI_REV_SPC5; 10186 10187 /* 10188 * According to SAM-3, even if a device only supports a single 10189 * level of LUN addressing, it should still set the HISUP bit: 10190 * 10191 * 4.9.1 Logical unit numbers overview 10192 * 10193 * All logical unit number formats described in this standard are 10194 * hierarchical in structure even when only a single level in that 10195 * hierarchy is used. The HISUP bit shall be set to one in the 10196 * standard INQUIRY data (see SPC-2) when any logical unit number 10197 * format described in this standard is used. Non-hierarchical 10198 * formats are outside the scope of this standard. 10199 * 10200 * Therefore we set the HiSup bit here. 10201 * 10202 * The response format is 2, per SPC-3. 10203 */ 10204 inq_ptr->response_format = SID_HiSup | 2; 10205 10206 inq_ptr->additional_length = data_len - 10207 (offsetof(struct scsi_inquiry_data, additional_length) + 1); 10208 CTL_DEBUG_PRINT(("additional_length = %d\n", 10209 inq_ptr->additional_length)); 10210 10211 inq_ptr->spc3_flags = SPC3_SID_3PC | SPC3_SID_TPGS_IMPLICIT; 10212 if (port_type == CTL_PORT_SCSI) 10213 inq_ptr->spc2_flags = SPC2_SID_ADDR16; 10214 inq_ptr->spc2_flags |= SPC2_SID_MultiP; 10215 inq_ptr->flags = SID_CmdQue; 10216 if (port_type == CTL_PORT_SCSI) 10217 inq_ptr->flags |= SID_WBus16 | SID_Sync; 10218 10219 /* 10220 * Per SPC-3, unused bytes in ASCII strings are filled with spaces. 10221 * We have 8 bytes for the vendor name, and 16 bytes for the device 10222 * name and 4 bytes for the revision. 10223 */ 10224 if (lun == NULL || (val = ctl_get_opt(&lun->be_lun->options, 10225 "vendor")) == NULL) { 10226 strncpy(inq_ptr->vendor, CTL_VENDOR, sizeof(inq_ptr->vendor)); 10227 } else { 10228 memset(inq_ptr->vendor, ' ', sizeof(inq_ptr->vendor)); 10229 strncpy(inq_ptr->vendor, val, 10230 min(sizeof(inq_ptr->vendor), strlen(val))); 10231 } 10232 if (lun == NULL) { 10233 strncpy(inq_ptr->product, CTL_DIRECT_PRODUCT, 10234 sizeof(inq_ptr->product)); 10235 } else if ((val = ctl_get_opt(&lun->be_lun->options, "product")) == NULL) { 10236 switch (lun->be_lun->lun_type) { 10237 case T_DIRECT: 10238 strncpy(inq_ptr->product, CTL_DIRECT_PRODUCT, 10239 sizeof(inq_ptr->product)); 10240 break; 10241 case T_PROCESSOR: 10242 strncpy(inq_ptr->product, CTL_PROCESSOR_PRODUCT, 10243 sizeof(inq_ptr->product)); 10244 break; 10245 case T_CDROM: 10246 strncpy(inq_ptr->product, CTL_CDROM_PRODUCT, 10247 sizeof(inq_ptr->product)); 10248 break; 10249 default: 10250 strncpy(inq_ptr->product, CTL_UNKNOWN_PRODUCT, 10251 sizeof(inq_ptr->product)); 10252 break; 10253 } 10254 } else { 10255 memset(inq_ptr->product, ' ', sizeof(inq_ptr->product)); 10256 strncpy(inq_ptr->product, val, 10257 min(sizeof(inq_ptr->product), strlen(val))); 10258 } 10259 10260 /* 10261 * XXX make this a macro somewhere so it automatically gets 10262 * incremented when we make changes. 10263 */ 10264 if (lun == NULL || (val = ctl_get_opt(&lun->be_lun->options, 10265 "revision")) == NULL) { 10266 strncpy(inq_ptr->revision, "0001", sizeof(inq_ptr->revision)); 10267 } else { 10268 memset(inq_ptr->revision, ' ', sizeof(inq_ptr->revision)); 10269 strncpy(inq_ptr->revision, val, 10270 min(sizeof(inq_ptr->revision), strlen(val))); 10271 } 10272 10273 /* 10274 * For parallel SCSI, we support double transition and single 10275 * transition clocking. We also support QAS (Quick Arbitration 10276 * and Selection) and Information Unit transfers on both the 10277 * control and array devices. 10278 */ 10279 if (port_type == CTL_PORT_SCSI) 10280 inq_ptr->spi3data = SID_SPI_CLOCK_DT_ST | SID_SPI_QAS | 10281 SID_SPI_IUS; 10282 10283 /* SAM-6 (no version claimed) */ 10284 scsi_ulto2b(0x00C0, inq_ptr->version1); 10285 /* SPC-5 (no version claimed) */ 10286 scsi_ulto2b(0x05C0, inq_ptr->version2); 10287 if (port_type == CTL_PORT_FC) { 10288 /* FCP-2 ANSI INCITS.350:2003 */ 10289 scsi_ulto2b(0x0917, inq_ptr->version3); 10290 } else if (port_type == CTL_PORT_SCSI) { 10291 /* SPI-4 ANSI INCITS.362:200x */ 10292 scsi_ulto2b(0x0B56, inq_ptr->version3); 10293 } else if (port_type == CTL_PORT_ISCSI) { 10294 /* iSCSI (no version claimed) */ 10295 scsi_ulto2b(0x0960, inq_ptr->version3); 10296 } else if (port_type == CTL_PORT_SAS) { 10297 /* SAS (no version claimed) */ 10298 scsi_ulto2b(0x0BE0, inq_ptr->version3); 10299 } 10300 10301 if (lun == NULL) { 10302 /* SBC-4 (no version claimed) */ 10303 scsi_ulto2b(0x0600, inq_ptr->version4); 10304 } else { 10305 switch (lun->be_lun->lun_type) { 10306 case T_DIRECT: 10307 /* SBC-4 (no version claimed) */ 10308 scsi_ulto2b(0x0600, inq_ptr->version4); 10309 break; 10310 case T_PROCESSOR: 10311 break; 10312 case T_CDROM: 10313 /* MMC-6 (no version claimed) */ 10314 scsi_ulto2b(0x04E0, inq_ptr->version4); 10315 break; 10316 default: 10317 break; 10318 } 10319 } 10320 10321 ctl_set_success(ctsio); 10322 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10323 ctsio->be_move_done = ctl_config_move_done; 10324 ctl_datamove((union ctl_io *)ctsio); 10325 return (CTL_RETVAL_COMPLETE); 10326} 10327 10328int 10329ctl_inquiry(struct ctl_scsiio *ctsio) 10330{ 10331 struct scsi_inquiry *cdb; 10332 int retval; 10333 10334 CTL_DEBUG_PRINT(("ctl_inquiry\n")); 10335 10336 cdb = (struct scsi_inquiry *)ctsio->cdb; 10337 if (cdb->byte2 & SI_EVPD) 10338 retval = ctl_inquiry_evpd(ctsio); 10339 else if (cdb->page_code == 0) 10340 retval = ctl_inquiry_std(ctsio); 10341 else { 10342 ctl_set_invalid_field(ctsio, 10343 /*sks_valid*/ 1, 10344 /*command*/ 1, 10345 /*field*/ 2, 10346 /*bit_valid*/ 0, 10347 /*bit*/ 0); 10348 ctl_done((union ctl_io *)ctsio); 10349 return (CTL_RETVAL_COMPLETE); 10350 } 10351 10352 return (retval); 10353} 10354 10355int 10356ctl_get_config(struct ctl_scsiio *ctsio) 10357{ 10358 struct scsi_get_config_header *hdr; 10359 struct scsi_get_config_feature *feature; 10360 struct scsi_get_config *cdb; 10361 struct ctl_lun *lun; 10362 uint32_t alloc_len, data_len; 10363 int rt, starting; 10364 10365 lun = ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10366 cdb = (struct scsi_get_config *)ctsio->cdb; 10367 rt = (cdb->rt & SGC_RT_MASK); 10368 starting = scsi_2btoul(cdb->starting_feature); 10369 alloc_len = scsi_2btoul(cdb->length); 10370 10371 data_len = sizeof(struct scsi_get_config_header) + 10372 sizeof(struct scsi_get_config_feature) + 8 + 10373 sizeof(struct scsi_get_config_feature) + 8 + 10374 sizeof(struct scsi_get_config_feature) + 4 + 10375 sizeof(struct scsi_get_config_feature) + 4 + 10376 sizeof(struct scsi_get_config_feature) + 8 + 10377 sizeof(struct scsi_get_config_feature) + 10378 sizeof(struct scsi_get_config_feature) + 4 + 10379 sizeof(struct scsi_get_config_feature) + 4 + 10380 sizeof(struct scsi_get_config_feature) + 4 + 10381 sizeof(struct scsi_get_config_feature) + 4 + 10382 sizeof(struct scsi_get_config_feature) + 4 + 10383 sizeof(struct scsi_get_config_feature) + 4; 10384 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 10385 ctsio->kern_sg_entries = 0; 10386 ctsio->kern_data_resid = 0; 10387 ctsio->kern_rel_offset = 0; 10388 10389 hdr = (struct scsi_get_config_header *)ctsio->kern_data_ptr; 10390 if (lun->flags & CTL_LUN_NO_MEDIA) 10391 scsi_ulto2b(0x0000, hdr->current_profile); 10392 else 10393 scsi_ulto2b(0x0010, hdr->current_profile); 10394 feature = (struct scsi_get_config_feature *)(hdr + 1); 10395 10396 if (starting > 0x003b) 10397 goto done; 10398 if (starting > 0x003a) 10399 goto f3b; 10400 if (starting > 0x002b) 10401 goto f3a; 10402 if (starting > 0x002a) 10403 goto f2b; 10404 if (starting > 0x001f) 10405 goto f2a; 10406 if (starting > 0x001e) 10407 goto f1f; 10408 if (starting > 0x001d) 10409 goto f1e; 10410 if (starting > 0x0010) 10411 goto f1d; 10412 if (starting > 0x0003) 10413 goto f10; 10414 if (starting > 0x0002) 10415 goto f3; 10416 if (starting > 0x0001) 10417 goto f2; 10418 if (starting > 0x0000) 10419 goto f1; 10420 10421 /* Profile List */ 10422 scsi_ulto2b(0x0000, feature->feature_code); 10423 feature->flags = SGC_F_PERSISTENT | SGC_F_CURRENT; 10424 feature->add_length = 8; 10425 scsi_ulto2b(0x0008, &feature->feature_data[0]); /* CD-ROM */ 10426 feature->feature_data[2] = 0x00; 10427 scsi_ulto2b(0x0010, &feature->feature_data[4]); /* DVD-ROM */ 10428 feature->feature_data[6] = 0x01; 10429 feature = (struct scsi_get_config_feature *) 10430 &feature->feature_data[feature->add_length]; 10431 10432f1: /* Core */ 10433 scsi_ulto2b(0x0001, feature->feature_code); 10434 feature->flags = 0x08 | SGC_F_PERSISTENT | SGC_F_CURRENT; 10435 feature->add_length = 8; 10436 scsi_ulto4b(0x00000000, &feature->feature_data[0]); 10437 feature->feature_data[4] = 0x03; 10438 feature = (struct scsi_get_config_feature *) 10439 &feature->feature_data[feature->add_length]; 10440 10441f2: /* Morphing */ 10442 scsi_ulto2b(0x0002, feature->feature_code); 10443 feature->flags = 0x04 | SGC_F_PERSISTENT | SGC_F_CURRENT; 10444 feature->add_length = 4; 10445 feature->feature_data[0] = 0x02; 10446 feature = (struct scsi_get_config_feature *) 10447 &feature->feature_data[feature->add_length]; 10448 10449f3: /* Removable Medium */ 10450 scsi_ulto2b(0x0003, feature->feature_code); 10451 feature->flags = 0x04 | SGC_F_PERSISTENT | SGC_F_CURRENT; 10452 feature->add_length = 4; 10453 feature->feature_data[0] = 0x39; 10454 feature = (struct scsi_get_config_feature *) 10455 &feature->feature_data[feature->add_length]; 10456 10457 if (rt == SGC_RT_CURRENT && (lun->flags & CTL_LUN_NO_MEDIA)) 10458 goto done; 10459 10460f10: /* Random Read */ 10461 scsi_ulto2b(0x0010, feature->feature_code); 10462 feature->flags = 0x00; 10463 if ((lun->flags & CTL_LUN_NO_MEDIA) == 0) 10464 feature->flags |= SGC_F_CURRENT; 10465 feature->add_length = 8; 10466 scsi_ulto4b(lun->be_lun->blocksize, &feature->feature_data[0]); 10467 scsi_ulto2b(1, &feature->feature_data[4]); 10468 feature->feature_data[6] = 0x00; 10469 feature = (struct scsi_get_config_feature *) 10470 &feature->feature_data[feature->add_length]; 10471 10472f1d: /* Multi-Read */ 10473 scsi_ulto2b(0x001D, feature->feature_code); 10474 feature->flags = 0x00; 10475 if ((lun->flags & CTL_LUN_NO_MEDIA) == 0) 10476 feature->flags |= SGC_F_CURRENT; 10477 feature->add_length = 0; 10478 feature = (struct scsi_get_config_feature *) 10479 &feature->feature_data[feature->add_length]; 10480 10481f1e: /* CD Read */ 10482 scsi_ulto2b(0x001E, feature->feature_code); 10483 feature->flags = 0x00; 10484 if ((lun->flags & CTL_LUN_NO_MEDIA) == 0) 10485 feature->flags |= SGC_F_CURRENT; 10486 feature->add_length = 4; 10487 feature->feature_data[0] = 0x00; 10488 feature = (struct scsi_get_config_feature *) 10489 &feature->feature_data[feature->add_length]; 10490 10491f1f: /* DVD Read */ 10492 scsi_ulto2b(0x001F, feature->feature_code); 10493 feature->flags = 0x08; 10494 if ((lun->flags & CTL_LUN_NO_MEDIA) == 0) 10495 feature->flags |= SGC_F_CURRENT; 10496 feature->add_length = 4; 10497 feature->feature_data[0] = 0x01; 10498 feature->feature_data[2] = 0x03; 10499 feature = (struct scsi_get_config_feature *) 10500 &feature->feature_data[feature->add_length]; 10501 10502f2a: /* DVD+RW */ 10503 scsi_ulto2b(0x002A, feature->feature_code); 10504 feature->flags = 0x04; 10505 if ((lun->flags & CTL_LUN_NO_MEDIA) == 0) 10506 feature->flags |= SGC_F_CURRENT; 10507 feature->add_length = 4; 10508 feature->feature_data[0] = 0x00; 10509 feature->feature_data[1] = 0x00; 10510 feature = (struct scsi_get_config_feature *) 10511 &feature->feature_data[feature->add_length]; 10512 10513f2b: /* DVD+R */ 10514 scsi_ulto2b(0x002B, feature->feature_code); 10515 feature->flags = 0x00; 10516 if ((lun->flags & CTL_LUN_NO_MEDIA) == 0) 10517 feature->flags |= SGC_F_CURRENT; 10518 feature->add_length = 4; 10519 feature->feature_data[0] = 0x00; 10520 feature = (struct scsi_get_config_feature *) 10521 &feature->feature_data[feature->add_length]; 10522 10523f3a: /* DVD+RW Dual Layer */ 10524 scsi_ulto2b(0x003A, feature->feature_code); 10525 feature->flags = 0x00; 10526 if ((lun->flags & CTL_LUN_NO_MEDIA) == 0) 10527 feature->flags |= SGC_F_CURRENT; 10528 feature->add_length = 4; 10529 feature->feature_data[0] = 0x00; 10530 feature->feature_data[1] = 0x00; 10531 feature = (struct scsi_get_config_feature *) 10532 &feature->feature_data[feature->add_length]; 10533 10534f3b: /* DVD+R Dual Layer */ 10535 scsi_ulto2b(0x003B, feature->feature_code); 10536 feature->flags = 0x00; 10537 if ((lun->flags & CTL_LUN_NO_MEDIA) == 0) 10538 feature->flags |= SGC_F_CURRENT; 10539 feature->add_length = 4; 10540 feature->feature_data[0] = 0x00; 10541 feature = (struct scsi_get_config_feature *) 10542 &feature->feature_data[feature->add_length]; 10543 10544done: 10545 data_len = (uint8_t *)feature - (uint8_t *)hdr; 10546 if (rt == SGC_RT_SPECIFIC && data_len > 4) { 10547 feature = (struct scsi_get_config_feature *)(hdr + 1); 10548 if (scsi_2btoul(feature->feature_code) == starting) 10549 feature = (struct scsi_get_config_feature *) 10550 &feature->feature_data[feature->add_length]; 10551 data_len = (uint8_t *)feature - (uint8_t *)hdr; 10552 } 10553 scsi_ulto4b(data_len - 4, hdr->data_length); 10554 if (data_len < alloc_len) { 10555 ctsio->residual = alloc_len - data_len; 10556 ctsio->kern_data_len = data_len; 10557 ctsio->kern_total_len = data_len; 10558 } else { 10559 ctsio->residual = 0; 10560 ctsio->kern_data_len = alloc_len; 10561 ctsio->kern_total_len = alloc_len; 10562 } 10563 10564 ctl_set_success(ctsio); 10565 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10566 ctsio->be_move_done = ctl_config_move_done; 10567 ctl_datamove((union ctl_io *)ctsio); 10568 return (CTL_RETVAL_COMPLETE); 10569} 10570 10571int 10572ctl_get_event_status(struct ctl_scsiio *ctsio) 10573{ 10574 struct scsi_get_event_status_header *hdr; 10575 struct scsi_get_event_status *cdb; 10576 struct ctl_lun *lun; 10577 uint32_t alloc_len, data_len; 10578 int notif_class; 10579 10580 lun = ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10581 cdb = (struct scsi_get_event_status *)ctsio->cdb; 10582 if ((cdb->byte2 & SGESN_POLLED) == 0) { 10583 ctl_set_invalid_field(ctsio, /*sks_valid*/ 1, /*command*/ 1, 10584 /*field*/ 1, /*bit_valid*/ 1, /*bit*/ 0); 10585 ctl_done((union ctl_io *)ctsio); 10586 return (CTL_RETVAL_COMPLETE); 10587 } 10588 notif_class = cdb->notif_class; 10589 alloc_len = scsi_2btoul(cdb->length); 10590 10591 data_len = sizeof(struct scsi_get_event_status_header); 10592 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 10593 ctsio->kern_sg_entries = 0; 10594 ctsio->kern_data_resid = 0; 10595 ctsio->kern_rel_offset = 0; 10596 10597 if (data_len < alloc_len) { 10598 ctsio->residual = alloc_len - data_len; 10599 ctsio->kern_data_len = data_len; 10600 ctsio->kern_total_len = data_len; 10601 } else { 10602 ctsio->residual = 0; 10603 ctsio->kern_data_len = alloc_len; 10604 ctsio->kern_total_len = alloc_len; 10605 } 10606 10607 hdr = (struct scsi_get_event_status_header *)ctsio->kern_data_ptr; 10608 scsi_ulto2b(0, hdr->descr_length); 10609 hdr->nea_class = SGESN_NEA; 10610 hdr->supported_class = 0; 10611 10612 ctl_set_success(ctsio); 10613 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10614 ctsio->be_move_done = ctl_config_move_done; 10615 ctl_datamove((union ctl_io *)ctsio); 10616 return (CTL_RETVAL_COMPLETE); 10617} 10618 10619int 10620ctl_mechanism_status(struct ctl_scsiio *ctsio) 10621{ 10622 struct scsi_mechanism_status_header *hdr; 10623 struct scsi_mechanism_status *cdb; 10624 struct ctl_lun *lun; 10625 uint32_t alloc_len, data_len; 10626 10627 lun = ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10628 cdb = (struct scsi_mechanism_status *)ctsio->cdb; 10629 alloc_len = scsi_2btoul(cdb->length); 10630 10631 data_len = sizeof(struct scsi_mechanism_status_header); 10632 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 10633 ctsio->kern_sg_entries = 0; 10634 ctsio->kern_data_resid = 0; 10635 ctsio->kern_rel_offset = 0; 10636 10637 if (data_len < alloc_len) { 10638 ctsio->residual = alloc_len - data_len; 10639 ctsio->kern_data_len = data_len; 10640 ctsio->kern_total_len = data_len; 10641 } else { 10642 ctsio->residual = 0; 10643 ctsio->kern_data_len = alloc_len; 10644 ctsio->kern_total_len = alloc_len; 10645 } 10646 10647 hdr = (struct scsi_mechanism_status_header *)ctsio->kern_data_ptr; 10648 hdr->state1 = 0x00; 10649 hdr->state2 = 0xe0; 10650 scsi_ulto3b(0, hdr->lba); 10651 hdr->slots_num = 0; 10652 scsi_ulto2b(0, hdr->slots_length); 10653 10654 ctl_set_success(ctsio); 10655 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10656 ctsio->be_move_done = ctl_config_move_done; 10657 ctl_datamove((union ctl_io *)ctsio); 10658 return (CTL_RETVAL_COMPLETE); 10659} 10660 10661static void 10662ctl_ultomsf(uint32_t lba, uint8_t *buf) 10663{ 10664 10665 lba += 150; 10666 buf[0] = 0; 10667 buf[1] = bin2bcd((lba / 75) / 60); 10668 buf[2] = bin2bcd((lba / 75) % 60); 10669 buf[3] = bin2bcd(lba % 75); 10670} 10671 10672int 10673ctl_read_toc(struct ctl_scsiio *ctsio) 10674{ 10675 struct scsi_read_toc_hdr *hdr; 10676 struct scsi_read_toc_type01_descr *descr; 10677 struct scsi_read_toc *cdb; 10678 struct ctl_lun *lun; 10679 uint32_t alloc_len, data_len; 10680 int format, msf; 10681 10682 lun = ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10683 cdb = (struct scsi_read_toc *)ctsio->cdb; 10684 msf = (cdb->byte2 & CD_MSF) != 0; 10685 format = cdb->format; 10686 alloc_len = scsi_2btoul(cdb->data_len); 10687 10688 data_len = sizeof(struct scsi_read_toc_hdr); 10689 if (format == 0) 10690 data_len += 2 * sizeof(struct scsi_read_toc_type01_descr); 10691 else 10692 data_len += sizeof(struct scsi_read_toc_type01_descr); 10693 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 10694 ctsio->kern_sg_entries = 0; 10695 ctsio->kern_data_resid = 0; 10696 ctsio->kern_rel_offset = 0; 10697 10698 if (data_len < alloc_len) { 10699 ctsio->residual = alloc_len - data_len; 10700 ctsio->kern_data_len = data_len; 10701 ctsio->kern_total_len = data_len; 10702 } else { 10703 ctsio->residual = 0; 10704 ctsio->kern_data_len = alloc_len; 10705 ctsio->kern_total_len = alloc_len; 10706 } 10707 10708 hdr = (struct scsi_read_toc_hdr *)ctsio->kern_data_ptr; 10709 if (format == 0) { 10710 scsi_ulto2b(0x12, hdr->data_length); 10711 hdr->first = 1; 10712 hdr->last = 1; 10713 descr = (struct scsi_read_toc_type01_descr *)(hdr + 1); 10714 descr->addr_ctl = 0x14; 10715 descr->track_number = 1; 10716 if (msf) 10717 ctl_ultomsf(0, descr->track_start); 10718 else 10719 scsi_ulto4b(0, descr->track_start); 10720 descr++; 10721 descr->addr_ctl = 0x14; 10722 descr->track_number = 0xaa; 10723 if (msf) 10724 ctl_ultomsf(lun->be_lun->maxlba+1, descr->track_start); 10725 else 10726 scsi_ulto4b(lun->be_lun->maxlba+1, descr->track_start); 10727 } else { 10728 scsi_ulto2b(0x0a, hdr->data_length); 10729 hdr->first = 1; 10730 hdr->last = 1; 10731 descr = (struct scsi_read_toc_type01_descr *)(hdr + 1); 10732 descr->addr_ctl = 0x14; 10733 descr->track_number = 1; 10734 if (msf) 10735 ctl_ultomsf(0, descr->track_start); 10736 else 10737 scsi_ulto4b(0, descr->track_start); 10738 } 10739 10740 ctl_set_success(ctsio); 10741 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10742 ctsio->be_move_done = ctl_config_move_done; 10743 ctl_datamove((union ctl_io *)ctsio); 10744 return (CTL_RETVAL_COMPLETE); 10745} 10746 10747/* 10748 * For known CDB types, parse the LBA and length. 10749 */ 10750static int 10751ctl_get_lba_len(union ctl_io *io, uint64_t *lba, uint64_t *len) 10752{ 10753 if (io->io_hdr.io_type != CTL_IO_SCSI) 10754 return (1); 10755 10756 switch (io->scsiio.cdb[0]) { 10757 case COMPARE_AND_WRITE: { 10758 struct scsi_compare_and_write *cdb; 10759 10760 cdb = (struct scsi_compare_and_write *)io->scsiio.cdb; 10761 10762 *lba = scsi_8btou64(cdb->addr); 10763 *len = cdb->length; 10764 break; 10765 } 10766 case READ_6: 10767 case WRITE_6: { 10768 struct scsi_rw_6 *cdb; 10769 10770 cdb = (struct scsi_rw_6 *)io->scsiio.cdb; 10771 10772 *lba = scsi_3btoul(cdb->addr); 10773 /* only 5 bits are valid in the most significant address byte */ 10774 *lba &= 0x1fffff; 10775 *len = cdb->length; 10776 break; 10777 } 10778 case READ_10: 10779 case WRITE_10: { 10780 struct scsi_rw_10 *cdb; 10781 10782 cdb = (struct scsi_rw_10 *)io->scsiio.cdb; 10783 10784 *lba = scsi_4btoul(cdb->addr); 10785 *len = scsi_2btoul(cdb->length); 10786 break; 10787 } 10788 case WRITE_VERIFY_10: { 10789 struct scsi_write_verify_10 *cdb; 10790 10791 cdb = (struct scsi_write_verify_10 *)io->scsiio.cdb; 10792 10793 *lba = scsi_4btoul(cdb->addr); 10794 *len = scsi_2btoul(cdb->length); 10795 break; 10796 } 10797 case READ_12: 10798 case WRITE_12: { 10799 struct scsi_rw_12 *cdb; 10800 10801 cdb = (struct scsi_rw_12 *)io->scsiio.cdb; 10802 10803 *lba = scsi_4btoul(cdb->addr); 10804 *len = scsi_4btoul(cdb->length); 10805 break; 10806 } 10807 case WRITE_VERIFY_12: { 10808 struct scsi_write_verify_12 *cdb; 10809 10810 cdb = (struct scsi_write_verify_12 *)io->scsiio.cdb; 10811 10812 *lba = scsi_4btoul(cdb->addr); 10813 *len = scsi_4btoul(cdb->length); 10814 break; 10815 } 10816 case READ_16: 10817 case WRITE_16: { 10818 struct scsi_rw_16 *cdb; 10819 10820 cdb = (struct scsi_rw_16 *)io->scsiio.cdb; 10821 10822 *lba = scsi_8btou64(cdb->addr); 10823 *len = scsi_4btoul(cdb->length); 10824 break; 10825 } 10826 case WRITE_ATOMIC_16: { 10827 struct scsi_write_atomic_16 *cdb; 10828 10829 cdb = (struct scsi_write_atomic_16 *)io->scsiio.cdb; 10830 10831 *lba = scsi_8btou64(cdb->addr); 10832 *len = scsi_2btoul(cdb->length); 10833 break; 10834 } 10835 case WRITE_VERIFY_16: { 10836 struct scsi_write_verify_16 *cdb; 10837 10838 cdb = (struct scsi_write_verify_16 *)io->scsiio.cdb; 10839 10840 *lba = scsi_8btou64(cdb->addr); 10841 *len = scsi_4btoul(cdb->length); 10842 break; 10843 } 10844 case WRITE_SAME_10: { 10845 struct scsi_write_same_10 *cdb; 10846 10847 cdb = (struct scsi_write_same_10 *)io->scsiio.cdb; 10848 10849 *lba = scsi_4btoul(cdb->addr); 10850 *len = scsi_2btoul(cdb->length); 10851 break; 10852 } 10853 case WRITE_SAME_16: { 10854 struct scsi_write_same_16 *cdb; 10855 10856 cdb = (struct scsi_write_same_16 *)io->scsiio.cdb; 10857 10858 *lba = scsi_8btou64(cdb->addr); 10859 *len = scsi_4btoul(cdb->length); 10860 break; 10861 } 10862 case VERIFY_10: { 10863 struct scsi_verify_10 *cdb; 10864 10865 cdb = (struct scsi_verify_10 *)io->scsiio.cdb; 10866 10867 *lba = scsi_4btoul(cdb->addr); 10868 *len = scsi_2btoul(cdb->length); 10869 break; 10870 } 10871 case VERIFY_12: { 10872 struct scsi_verify_12 *cdb; 10873 10874 cdb = (struct scsi_verify_12 *)io->scsiio.cdb; 10875 10876 *lba = scsi_4btoul(cdb->addr); 10877 *len = scsi_4btoul(cdb->length); 10878 break; 10879 } 10880 case VERIFY_16: { 10881 struct scsi_verify_16 *cdb; 10882 10883 cdb = (struct scsi_verify_16 *)io->scsiio.cdb; 10884 10885 *lba = scsi_8btou64(cdb->addr); 10886 *len = scsi_4btoul(cdb->length); 10887 break; 10888 } 10889 case UNMAP: { 10890 *lba = 0; 10891 *len = UINT64_MAX; 10892 break; 10893 } 10894 case SERVICE_ACTION_IN: { /* GET LBA STATUS */ 10895 struct scsi_get_lba_status *cdb; 10896 10897 cdb = (struct scsi_get_lba_status *)io->scsiio.cdb; 10898 *lba = scsi_8btou64(cdb->addr); 10899 *len = UINT32_MAX; 10900 break; 10901 } 10902 default: 10903 return (1); 10904 break; /* NOTREACHED */ 10905 } 10906 10907 return (0); 10908} 10909 10910static ctl_action 10911ctl_extent_check_lba(uint64_t lba1, uint64_t len1, uint64_t lba2, uint64_t len2, 10912 bool seq) 10913{ 10914 uint64_t endlba1, endlba2; 10915 10916 endlba1 = lba1 + len1 - (seq ? 0 : 1); 10917 endlba2 = lba2 + len2 - 1; 10918 10919 if ((endlba1 < lba2) || (endlba2 < lba1)) 10920 return (CTL_ACTION_PASS); 10921 else 10922 return (CTL_ACTION_BLOCK); 10923} 10924 10925static int 10926ctl_extent_check_unmap(union ctl_io *io, uint64_t lba2, uint64_t len2) 10927{ 10928 struct ctl_ptr_len_flags *ptrlen; 10929 struct scsi_unmap_desc *buf, *end, *range; 10930 uint64_t lba; 10931 uint32_t len; 10932 10933 /* If not UNMAP -- go other way. */ 10934 if (io->io_hdr.io_type != CTL_IO_SCSI || 10935 io->scsiio.cdb[0] != UNMAP) 10936 return (CTL_ACTION_ERROR); 10937 10938 /* If UNMAP without data -- block and wait for data. */ 10939 ptrlen = (struct ctl_ptr_len_flags *) 10940 &io->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 10941 if ((io->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0 || 10942 ptrlen->ptr == NULL) 10943 return (CTL_ACTION_BLOCK); 10944 10945 /* UNMAP with data -- check for collision. */ 10946 buf = (struct scsi_unmap_desc *)ptrlen->ptr; 10947 end = buf + ptrlen->len / sizeof(*buf); 10948 for (range = buf; range < end; range++) { 10949 lba = scsi_8btou64(range->lba); 10950 len = scsi_4btoul(range->length); 10951 if ((lba < lba2 + len2) && (lba + len > lba2)) 10952 return (CTL_ACTION_BLOCK); 10953 } 10954 return (CTL_ACTION_PASS); 10955} 10956 10957static ctl_action 10958ctl_extent_check(union ctl_io *io1, union ctl_io *io2, bool seq) 10959{ 10960 uint64_t lba1, lba2; 10961 uint64_t len1, len2; 10962 int retval; 10963 10964 if (ctl_get_lba_len(io2, &lba2, &len2) != 0) 10965 return (CTL_ACTION_ERROR); 10966 10967 retval = ctl_extent_check_unmap(io1, lba2, len2); 10968 if (retval != CTL_ACTION_ERROR) 10969 return (retval); 10970 10971 if (ctl_get_lba_len(io1, &lba1, &len1) != 0) 10972 return (CTL_ACTION_ERROR); 10973 10974 if (io1->io_hdr.flags & CTL_FLAG_SERSEQ_DONE) 10975 seq = FALSE; 10976 return (ctl_extent_check_lba(lba1, len1, lba2, len2, seq)); 10977} 10978 10979static ctl_action 10980ctl_extent_check_seq(union ctl_io *io1, union ctl_io *io2) 10981{ 10982 uint64_t lba1, lba2; 10983 uint64_t len1, len2; 10984 10985 if (io1->io_hdr.flags & CTL_FLAG_SERSEQ_DONE) 10986 return (CTL_ACTION_PASS); 10987 if (ctl_get_lba_len(io1, &lba1, &len1) != 0) 10988 return (CTL_ACTION_ERROR); 10989 if (ctl_get_lba_len(io2, &lba2, &len2) != 0) 10990 return (CTL_ACTION_ERROR); 10991 10992 if (lba1 + len1 == lba2) 10993 return (CTL_ACTION_BLOCK); 10994 return (CTL_ACTION_PASS); 10995} 10996 10997static ctl_action 10998ctl_check_for_blockage(struct ctl_lun *lun, union ctl_io *pending_io, 10999 union ctl_io *ooa_io) 11000{ 11001 const struct ctl_cmd_entry *pending_entry, *ooa_entry; 11002 const ctl_serialize_action *serialize_row; 11003 11004 /* 11005 * The initiator attempted multiple untagged commands at the same 11006 * time. Can't do that. 11007 */ 11008 if ((pending_io->scsiio.tag_type == CTL_TAG_UNTAGGED) 11009 && (ooa_io->scsiio.tag_type == CTL_TAG_UNTAGGED) 11010 && ((pending_io->io_hdr.nexus.targ_port == 11011 ooa_io->io_hdr.nexus.targ_port) 11012 && (pending_io->io_hdr.nexus.initid == 11013 ooa_io->io_hdr.nexus.initid)) 11014 && ((ooa_io->io_hdr.flags & (CTL_FLAG_ABORT | 11015 CTL_FLAG_STATUS_SENT)) == 0)) 11016 return (CTL_ACTION_OVERLAP); 11017 11018 /* 11019 * The initiator attempted to send multiple tagged commands with 11020 * the same ID. (It's fine if different initiators have the same 11021 * tag ID.) 11022 * 11023 * Even if all of those conditions are true, we don't kill the I/O 11024 * if the command ahead of us has been aborted. We won't end up 11025 * sending it to the FETD, and it's perfectly legal to resend a 11026 * command with the same tag number as long as the previous 11027 * instance of this tag number has been aborted somehow. 11028 */ 11029 if ((pending_io->scsiio.tag_type != CTL_TAG_UNTAGGED) 11030 && (ooa_io->scsiio.tag_type != CTL_TAG_UNTAGGED) 11031 && (pending_io->scsiio.tag_num == ooa_io->scsiio.tag_num) 11032 && ((pending_io->io_hdr.nexus.targ_port == 11033 ooa_io->io_hdr.nexus.targ_port) 11034 && (pending_io->io_hdr.nexus.initid == 11035 ooa_io->io_hdr.nexus.initid)) 11036 && ((ooa_io->io_hdr.flags & (CTL_FLAG_ABORT | 11037 CTL_FLAG_STATUS_SENT)) == 0)) 11038 return (CTL_ACTION_OVERLAP_TAG); 11039 11040 /* 11041 * If we get a head of queue tag, SAM-3 says that we should 11042 * immediately execute it. 11043 * 11044 * What happens if this command would normally block for some other 11045 * reason? e.g. a request sense with a head of queue tag 11046 * immediately after a write. Normally that would block, but this 11047 * will result in its getting executed immediately... 11048 * 11049 * We currently return "pass" instead of "skip", so we'll end up 11050 * going through the rest of the queue to check for overlapped tags. 11051 * 11052 * XXX KDM check for other types of blockage first?? 11053 */ 11054 if (pending_io->scsiio.tag_type == CTL_TAG_HEAD_OF_QUEUE) 11055 return (CTL_ACTION_PASS); 11056 11057 /* 11058 * Ordered tags have to block until all items ahead of them 11059 * have completed. If we get called with an ordered tag, we always 11060 * block, if something else is ahead of us in the queue. 11061 */ 11062 if (pending_io->scsiio.tag_type == CTL_TAG_ORDERED) 11063 return (CTL_ACTION_BLOCK); 11064 11065 /* 11066 * Simple tags get blocked until all head of queue and ordered tags 11067 * ahead of them have completed. I'm lumping untagged commands in 11068 * with simple tags here. XXX KDM is that the right thing to do? 11069 */ 11070 if (((pending_io->scsiio.tag_type == CTL_TAG_UNTAGGED) 11071 || (pending_io->scsiio.tag_type == CTL_TAG_SIMPLE)) 11072 && ((ooa_io->scsiio.tag_type == CTL_TAG_HEAD_OF_QUEUE) 11073 || (ooa_io->scsiio.tag_type == CTL_TAG_ORDERED))) 11074 return (CTL_ACTION_BLOCK); 11075 11076 pending_entry = ctl_get_cmd_entry(&pending_io->scsiio, NULL); 11077 KASSERT(pending_entry->seridx < CTL_SERIDX_COUNT, 11078 ("%s: Invalid seridx %d for pending CDB %02x %02x @ %p", 11079 __func__, pending_entry->seridx, pending_io->scsiio.cdb[0], 11080 pending_io->scsiio.cdb[1], pending_io)); 11081 ooa_entry = ctl_get_cmd_entry(&ooa_io->scsiio, NULL); 11082 if (ooa_entry->seridx == CTL_SERIDX_INVLD) 11083 return (CTL_ACTION_PASS); /* Unsupported command in OOA queue */ 11084 KASSERT(ooa_entry->seridx < CTL_SERIDX_COUNT, 11085 ("%s: Invalid seridx %d for ooa CDB %02x %02x @ %p", 11086 __func__, ooa_entry->seridx, ooa_io->scsiio.cdb[0], 11087 ooa_io->scsiio.cdb[1], ooa_io)); 11088 11089 serialize_row = ctl_serialize_table[ooa_entry->seridx]; 11090 11091 switch (serialize_row[pending_entry->seridx]) { 11092 case CTL_SER_BLOCK: 11093 return (CTL_ACTION_BLOCK); 11094 case CTL_SER_EXTENT: 11095 return (ctl_extent_check(ooa_io, pending_io, 11096 (lun->be_lun && lun->be_lun->serseq == CTL_LUN_SERSEQ_ON))); 11097 case CTL_SER_EXTENTOPT: 11098 if ((lun->MODE_CTRL.queue_flags & SCP_QUEUE_ALG_MASK) != 11099 SCP_QUEUE_ALG_UNRESTRICTED) 11100 return (ctl_extent_check(ooa_io, pending_io, 11101 (lun->be_lun && 11102 lun->be_lun->serseq == CTL_LUN_SERSEQ_ON))); 11103 return (CTL_ACTION_PASS); 11104 case CTL_SER_EXTENTSEQ: 11105 if (lun->be_lun && lun->be_lun->serseq != CTL_LUN_SERSEQ_OFF) 11106 return (ctl_extent_check_seq(ooa_io, pending_io)); 11107 return (CTL_ACTION_PASS); 11108 case CTL_SER_PASS: 11109 return (CTL_ACTION_PASS); 11110 case CTL_SER_BLOCKOPT: 11111 if ((lun->MODE_CTRL.queue_flags & SCP_QUEUE_ALG_MASK) != 11112 SCP_QUEUE_ALG_UNRESTRICTED) 11113 return (CTL_ACTION_BLOCK); 11114 return (CTL_ACTION_PASS); 11115 case CTL_SER_SKIP: 11116 return (CTL_ACTION_SKIP); 11117 default: 11118 panic("%s: Invalid serialization value %d for %d => %d", 11119 __func__, serialize_row[pending_entry->seridx], 11120 pending_entry->seridx, ooa_entry->seridx); 11121 } 11122 11123 return (CTL_ACTION_ERROR); 11124} 11125 11126/* 11127 * Check for blockage or overlaps against the OOA (Order Of Arrival) queue. 11128 * Assumptions: 11129 * - pending_io is generally either incoming, or on the blocked queue 11130 * - starting I/O is the I/O we want to start the check with. 11131 */ 11132static ctl_action 11133ctl_check_ooa(struct ctl_lun *lun, union ctl_io *pending_io, 11134 union ctl_io *starting_io) 11135{ 11136 union ctl_io *ooa_io; 11137 ctl_action action; 11138 11139 mtx_assert(&lun->lun_lock, MA_OWNED); 11140 11141 /* 11142 * Run back along the OOA queue, starting with the current 11143 * blocked I/O and going through every I/O before it on the 11144 * queue. If starting_io is NULL, we'll just end up returning 11145 * CTL_ACTION_PASS. 11146 */ 11147 for (ooa_io = starting_io; ooa_io != NULL; 11148 ooa_io = (union ctl_io *)TAILQ_PREV(&ooa_io->io_hdr, ctl_ooaq, 11149 ooa_links)){ 11150 11151 /* 11152 * This routine just checks to see whether 11153 * cur_blocked is blocked by ooa_io, which is ahead 11154 * of it in the queue. It doesn't queue/dequeue 11155 * cur_blocked. 11156 */ 11157 action = ctl_check_for_blockage(lun, pending_io, ooa_io); 11158 switch (action) { 11159 case CTL_ACTION_BLOCK: 11160 case CTL_ACTION_OVERLAP: 11161 case CTL_ACTION_OVERLAP_TAG: 11162 case CTL_ACTION_SKIP: 11163 case CTL_ACTION_ERROR: 11164 return (action); 11165 break; /* NOTREACHED */ 11166 case CTL_ACTION_PASS: 11167 break; 11168 default: 11169 panic("%s: Invalid action %d\n", __func__, action); 11170 } 11171 } 11172 11173 return (CTL_ACTION_PASS); 11174} 11175 11176/* 11177 * Assumptions: 11178 * - An I/O has just completed, and has been removed from the per-LUN OOA 11179 * queue, so some items on the blocked queue may now be unblocked. 11180 */ 11181static int 11182ctl_check_blocked(struct ctl_lun *lun) 11183{ 11184 struct ctl_softc *softc = lun->ctl_softc; 11185 union ctl_io *cur_blocked, *next_blocked; 11186 11187 mtx_assert(&lun->lun_lock, MA_OWNED); 11188 11189 /* 11190 * Run forward from the head of the blocked queue, checking each 11191 * entry against the I/Os prior to it on the OOA queue to see if 11192 * there is still any blockage. 11193 * 11194 * We cannot use the TAILQ_FOREACH() macro, because it can't deal 11195 * with our removing a variable on it while it is traversing the 11196 * list. 11197 */ 11198 for (cur_blocked = (union ctl_io *)TAILQ_FIRST(&lun->blocked_queue); 11199 cur_blocked != NULL; cur_blocked = next_blocked) { 11200 union ctl_io *prev_ooa; 11201 ctl_action action; 11202 11203 next_blocked = (union ctl_io *)TAILQ_NEXT(&cur_blocked->io_hdr, 11204 blocked_links); 11205 11206 prev_ooa = (union ctl_io *)TAILQ_PREV(&cur_blocked->io_hdr, 11207 ctl_ooaq, ooa_links); 11208 11209 /* 11210 * If cur_blocked happens to be the first item in the OOA 11211 * queue now, prev_ooa will be NULL, and the action 11212 * returned will just be CTL_ACTION_PASS. 11213 */ 11214 action = ctl_check_ooa(lun, cur_blocked, prev_ooa); 11215 11216 switch (action) { 11217 case CTL_ACTION_BLOCK: 11218 /* Nothing to do here, still blocked */ 11219 break; 11220 case CTL_ACTION_OVERLAP: 11221 case CTL_ACTION_OVERLAP_TAG: 11222 /* 11223 * This shouldn't happen! In theory we've already 11224 * checked this command for overlap... 11225 */ 11226 break; 11227 case CTL_ACTION_PASS: 11228 case CTL_ACTION_SKIP: { 11229 const struct ctl_cmd_entry *entry; 11230 11231 /* 11232 * The skip case shouldn't happen, this transaction 11233 * should have never made it onto the blocked queue. 11234 */ 11235 /* 11236 * This I/O is no longer blocked, we can remove it 11237 * from the blocked queue. Since this is a TAILQ 11238 * (doubly linked list), we can do O(1) removals 11239 * from any place on the list. 11240 */ 11241 TAILQ_REMOVE(&lun->blocked_queue, &cur_blocked->io_hdr, 11242 blocked_links); 11243 cur_blocked->io_hdr.flags &= ~CTL_FLAG_BLOCKED; 11244 11245 if ((softc->ha_mode != CTL_HA_MODE_XFER) && 11246 (cur_blocked->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)){ 11247 /* 11248 * Need to send IO back to original side to 11249 * run 11250 */ 11251 union ctl_ha_msg msg_info; 11252 11253 cur_blocked->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 11254 msg_info.hdr.original_sc = 11255 cur_blocked->io_hdr.original_sc; 11256 msg_info.hdr.serializing_sc = cur_blocked; 11257 msg_info.hdr.msg_type = CTL_MSG_R2R; 11258 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 11259 sizeof(msg_info.hdr), M_NOWAIT); 11260 break; 11261 } 11262 entry = ctl_get_cmd_entry(&cur_blocked->scsiio, NULL); 11263 11264 /* 11265 * Check this I/O for LUN state changes that may 11266 * have happened while this command was blocked. 11267 * The LUN state may have been changed by a command 11268 * ahead of us in the queue, so we need to re-check 11269 * for any states that can be caused by SCSI 11270 * commands. 11271 */ 11272 if (ctl_scsiio_lun_check(lun, entry, 11273 &cur_blocked->scsiio) == 0) { 11274 cur_blocked->io_hdr.flags |= 11275 CTL_FLAG_IS_WAS_ON_RTR; 11276 ctl_enqueue_rtr(cur_blocked); 11277 } else 11278 ctl_done(cur_blocked); 11279 break; 11280 } 11281 default: 11282 /* 11283 * This probably shouldn't happen -- we shouldn't 11284 * get CTL_ACTION_ERROR, or anything else. 11285 */ 11286 break; 11287 } 11288 } 11289 11290 return (CTL_RETVAL_COMPLETE); 11291} 11292 11293/* 11294 * This routine (with one exception) checks LUN flags that can be set by 11295 * commands ahead of us in the OOA queue. These flags have to be checked 11296 * when a command initially comes in, and when we pull a command off the 11297 * blocked queue and are preparing to execute it. The reason we have to 11298 * check these flags for commands on the blocked queue is that the LUN 11299 * state may have been changed by a command ahead of us while we're on the 11300 * blocked queue. 11301 * 11302 * Ordering is somewhat important with these checks, so please pay 11303 * careful attention to the placement of any new checks. 11304 */ 11305static int 11306ctl_scsiio_lun_check(struct ctl_lun *lun, 11307 const struct ctl_cmd_entry *entry, struct ctl_scsiio *ctsio) 11308{ 11309 struct ctl_softc *softc = lun->ctl_softc; 11310 int retval; 11311 uint32_t residx; 11312 11313 retval = 0; 11314 11315 mtx_assert(&lun->lun_lock, MA_OWNED); 11316 11317 /* 11318 * If this shelf is a secondary shelf controller, we may have to 11319 * reject some commands disallowed by HA mode and link state. 11320 */ 11321 if ((lun->flags & CTL_LUN_PRIMARY_SC) == 0) { 11322 if (softc->ha_link == CTL_HA_LINK_OFFLINE && 11323 (entry->flags & CTL_CMD_FLAG_OK_ON_UNAVAIL) == 0) { 11324 ctl_set_lun_unavail(ctsio); 11325 retval = 1; 11326 goto bailout; 11327 } 11328 if ((lun->flags & CTL_LUN_PEER_SC_PRIMARY) == 0 && 11329 (entry->flags & CTL_CMD_FLAG_OK_ON_UNAVAIL) == 0) { 11330 ctl_set_lun_transit(ctsio); 11331 retval = 1; 11332 goto bailout; 11333 } 11334 if (softc->ha_mode == CTL_HA_MODE_ACT_STBY && 11335 (entry->flags & CTL_CMD_FLAG_OK_ON_STANDBY) == 0) { 11336 ctl_set_lun_standby(ctsio); 11337 retval = 1; 11338 goto bailout; 11339 } 11340 11341 /* The rest of checks are only done on executing side */ 11342 if (softc->ha_mode == CTL_HA_MODE_XFER) 11343 goto bailout; 11344 } 11345 11346 if (entry->pattern & CTL_LUN_PAT_WRITE) { 11347 if (lun->be_lun && 11348 lun->be_lun->flags & CTL_LUN_FLAG_READONLY) { 11349 ctl_set_hw_write_protected(ctsio); 11350 retval = 1; 11351 goto bailout; 11352 } 11353 if ((lun->MODE_CTRL.eca_and_aen & SCP_SWP) != 0) { 11354 ctl_set_sense(ctsio, /*current_error*/ 1, 11355 /*sense_key*/ SSD_KEY_DATA_PROTECT, 11356 /*asc*/ 0x27, /*ascq*/ 0x02, SSD_ELEM_NONE); 11357 retval = 1; 11358 goto bailout; 11359 } 11360 } 11361 11362 /* 11363 * Check for a reservation conflict. If this command isn't allowed 11364 * even on reserved LUNs, and if this initiator isn't the one who 11365 * reserved us, reject the command with a reservation conflict. 11366 */ 11367 residx = ctl_get_initindex(&ctsio->io_hdr.nexus); 11368 if ((lun->flags & CTL_LUN_RESERVED) 11369 && ((entry->flags & CTL_CMD_FLAG_ALLOW_ON_RESV) == 0)) { 11370 if (lun->res_idx != residx) { 11371 ctl_set_reservation_conflict(ctsio); 11372 retval = 1; 11373 goto bailout; 11374 } 11375 } 11376 11377 if ((lun->flags & CTL_LUN_PR_RESERVED) == 0 || 11378 (entry->flags & CTL_CMD_FLAG_ALLOW_ON_PR_RESV)) { 11379 /* No reservation or command is allowed. */; 11380 } else if ((entry->flags & CTL_CMD_FLAG_ALLOW_ON_PR_WRESV) && 11381 (lun->pr_res_type == SPR_TYPE_WR_EX || 11382 lun->pr_res_type == SPR_TYPE_WR_EX_RO || 11383 lun->pr_res_type == SPR_TYPE_WR_EX_AR)) { 11384 /* The command is allowed for Write Exclusive resv. */; 11385 } else { 11386 /* 11387 * if we aren't registered or it's a res holder type 11388 * reservation and this isn't the res holder then set a 11389 * conflict. 11390 */ 11391 if (ctl_get_prkey(lun, residx) == 0 || 11392 (residx != lun->pr_res_idx && lun->pr_res_type < 4)) { 11393 ctl_set_reservation_conflict(ctsio); 11394 retval = 1; 11395 goto bailout; 11396 } 11397 } 11398 11399 if ((entry->flags & CTL_CMD_FLAG_OK_ON_NO_MEDIA) == 0) { 11400 if (lun->flags & CTL_LUN_EJECTED) 11401 ctl_set_lun_ejected(ctsio); 11402 else if (lun->flags & CTL_LUN_NO_MEDIA) { 11403 if (lun->flags & CTL_LUN_REMOVABLE) 11404 ctl_set_lun_no_media(ctsio); 11405 else 11406 ctl_set_lun_int_reqd(ctsio); 11407 } else if (lun->flags & CTL_LUN_STOPPED) 11408 ctl_set_lun_stopped(ctsio); 11409 else 11410 goto bailout; 11411 retval = 1; 11412 goto bailout; 11413 } 11414 11415bailout: 11416 return (retval); 11417} 11418 11419static void 11420ctl_failover_io(union ctl_io *io, int have_lock) 11421{ 11422 ctl_set_busy(&io->scsiio); 11423 ctl_done(io); 11424} 11425 11426static void 11427ctl_failover_lun(union ctl_io *rio) 11428{ 11429 struct ctl_softc *softc = control_softc; 11430 struct ctl_lun *lun; 11431 struct ctl_io_hdr *io, *next_io; 11432 uint32_t targ_lun; 11433 11434 targ_lun = rio->io_hdr.nexus.targ_mapped_lun; 11435 CTL_DEBUG_PRINT(("FAILOVER for lun %ju\n", targ_lun)); 11436 11437 /* Find and lock the LUN. */ 11438 mtx_lock(&softc->ctl_lock); 11439 if ((targ_lun < CTL_MAX_LUNS) && 11440 ((lun = softc->ctl_luns[targ_lun]) != NULL)) { 11441 mtx_lock(&lun->lun_lock); 11442 mtx_unlock(&softc->ctl_lock); 11443 if (lun->flags & CTL_LUN_DISABLED) { 11444 mtx_unlock(&lun->lun_lock); 11445 return; 11446 } 11447 } else { 11448 mtx_unlock(&softc->ctl_lock); 11449 return; 11450 } 11451 11452 if (softc->ha_mode == CTL_HA_MODE_XFER) { 11453 TAILQ_FOREACH_SAFE(io, &lun->ooa_queue, ooa_links, next_io) { 11454 /* We are master */ 11455 if (io->flags & CTL_FLAG_FROM_OTHER_SC) { 11456 if (io->flags & CTL_FLAG_IO_ACTIVE) { 11457 io->flags |= CTL_FLAG_ABORT; 11458 io->flags |= CTL_FLAG_FAILOVER; 11459 } else { /* This can be only due to DATAMOVE */ 11460 io->msg_type = CTL_MSG_DATAMOVE_DONE; 11461 io->flags &= ~CTL_FLAG_DMA_INPROG; 11462 io->flags |= CTL_FLAG_IO_ACTIVE; 11463 io->port_status = 31340; 11464 ctl_enqueue_isc((union ctl_io *)io); 11465 } 11466 } 11467 /* We are slave */ 11468 if (io->flags & CTL_FLAG_SENT_2OTHER_SC) { 11469 io->flags &= ~CTL_FLAG_SENT_2OTHER_SC; 11470 if (io->flags & CTL_FLAG_IO_ACTIVE) { 11471 io->flags |= CTL_FLAG_FAILOVER; 11472 } else { 11473 ctl_set_busy(&((union ctl_io *)io)-> 11474 scsiio); 11475 ctl_done((union ctl_io *)io); 11476 } 11477 } 11478 } 11479 } else { /* SERIALIZE modes */ 11480 TAILQ_FOREACH_SAFE(io, &lun->blocked_queue, blocked_links, 11481 next_io) { 11482 /* We are master */ 11483 if (io->flags & CTL_FLAG_FROM_OTHER_SC) { 11484 TAILQ_REMOVE(&lun->blocked_queue, io, 11485 blocked_links); 11486 io->flags &= ~CTL_FLAG_BLOCKED; 11487 TAILQ_REMOVE(&lun->ooa_queue, io, ooa_links); 11488 ctl_free_io((union ctl_io *)io); 11489 } 11490 } 11491 TAILQ_FOREACH_SAFE(io, &lun->ooa_queue, ooa_links, next_io) { 11492 /* We are master */ 11493 if (io->flags & CTL_FLAG_FROM_OTHER_SC) { 11494 TAILQ_REMOVE(&lun->ooa_queue, io, ooa_links); 11495 ctl_free_io((union ctl_io *)io); 11496 } 11497 /* We are slave */ 11498 if (io->flags & CTL_FLAG_SENT_2OTHER_SC) { 11499 io->flags &= ~CTL_FLAG_SENT_2OTHER_SC; 11500 if (!(io->flags & CTL_FLAG_IO_ACTIVE)) { 11501 ctl_set_busy(&((union ctl_io *)io)-> 11502 scsiio); 11503 ctl_done((union ctl_io *)io); 11504 } 11505 } 11506 } 11507 ctl_check_blocked(lun); 11508 } 11509 mtx_unlock(&lun->lun_lock); 11510} 11511 11512static int 11513ctl_scsiio_precheck(struct ctl_softc *softc, struct ctl_scsiio *ctsio) 11514{ 11515 struct ctl_lun *lun; 11516 const struct ctl_cmd_entry *entry; 11517 uint32_t initidx, targ_lun; 11518 int retval; 11519 11520 retval = 0; 11521 11522 lun = NULL; 11523 11524 targ_lun = ctsio->io_hdr.nexus.targ_mapped_lun; 11525 if ((targ_lun < CTL_MAX_LUNS) 11526 && ((lun = softc->ctl_luns[targ_lun]) != NULL)) { 11527 /* 11528 * If the LUN is invalid, pretend that it doesn't exist. 11529 * It will go away as soon as all pending I/O has been 11530 * completed. 11531 */ 11532 mtx_lock(&lun->lun_lock); 11533 if (lun->flags & CTL_LUN_DISABLED) { 11534 mtx_unlock(&lun->lun_lock); 11535 lun = NULL; 11536 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr = NULL; 11537 ctsio->io_hdr.ctl_private[CTL_PRIV_BACKEND_LUN].ptr = NULL; 11538 } else { 11539 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr = lun; 11540 ctsio->io_hdr.ctl_private[CTL_PRIV_BACKEND_LUN].ptr = 11541 lun->be_lun; 11542 11543 /* 11544 * Every I/O goes into the OOA queue for a 11545 * particular LUN, and stays there until completion. 11546 */ 11547#ifdef CTL_TIME_IO 11548 if (TAILQ_EMPTY(&lun->ooa_queue)) { 11549 lun->idle_time += getsbinuptime() - 11550 lun->last_busy; 11551 } 11552#endif 11553 TAILQ_INSERT_TAIL(&lun->ooa_queue, &ctsio->io_hdr, 11554 ooa_links); 11555 } 11556 } else { 11557 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr = NULL; 11558 ctsio->io_hdr.ctl_private[CTL_PRIV_BACKEND_LUN].ptr = NULL; 11559 } 11560 11561 /* Get command entry and return error if it is unsuppotyed. */ 11562 entry = ctl_validate_command(ctsio); 11563 if (entry == NULL) { 11564 if (lun) 11565 mtx_unlock(&lun->lun_lock); 11566 return (retval); 11567 } 11568 11569 ctsio->io_hdr.flags &= ~CTL_FLAG_DATA_MASK; 11570 ctsio->io_hdr.flags |= entry->flags & CTL_FLAG_DATA_MASK; 11571 11572 /* 11573 * Check to see whether we can send this command to LUNs that don't 11574 * exist. This should pretty much only be the case for inquiry 11575 * and request sense. Further checks, below, really require having 11576 * a LUN, so we can't really check the command anymore. Just put 11577 * it on the rtr queue. 11578 */ 11579 if (lun == NULL) { 11580 if (entry->flags & CTL_CMD_FLAG_OK_ON_NO_LUN) { 11581 ctsio->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 11582 ctl_enqueue_rtr((union ctl_io *)ctsio); 11583 return (retval); 11584 } 11585 11586 ctl_set_unsupported_lun(ctsio); 11587 ctl_done((union ctl_io *)ctsio); 11588 CTL_DEBUG_PRINT(("ctl_scsiio_precheck: bailing out due to invalid LUN\n")); 11589 return (retval); 11590 } else { 11591 /* 11592 * Make sure we support this particular command on this LUN. 11593 * e.g., we don't support writes to the control LUN. 11594 */ 11595 if (!ctl_cmd_applicable(lun->be_lun->lun_type, entry)) { 11596 mtx_unlock(&lun->lun_lock); 11597 ctl_set_invalid_opcode(ctsio); 11598 ctl_done((union ctl_io *)ctsio); 11599 return (retval); 11600 } 11601 } 11602 11603 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 11604 11605#ifdef CTL_WITH_CA 11606 /* 11607 * If we've got a request sense, it'll clear the contingent 11608 * allegiance condition. Otherwise, if we have a CA condition for 11609 * this initiator, clear it, because it sent down a command other 11610 * than request sense. 11611 */ 11612 if ((ctsio->cdb[0] != REQUEST_SENSE) 11613 && (ctl_is_set(lun->have_ca, initidx))) 11614 ctl_clear_mask(lun->have_ca, initidx); 11615#endif 11616 11617 /* 11618 * If the command has this flag set, it handles its own unit 11619 * attention reporting, we shouldn't do anything. Otherwise we 11620 * check for any pending unit attentions, and send them back to the 11621 * initiator. We only do this when a command initially comes in, 11622 * not when we pull it off the blocked queue. 11623 * 11624 * According to SAM-3, section 5.3.2, the order that things get 11625 * presented back to the host is basically unit attentions caused 11626 * by some sort of reset event, busy status, reservation conflicts 11627 * or task set full, and finally any other status. 11628 * 11629 * One issue here is that some of the unit attentions we report 11630 * don't fall into the "reset" category (e.g. "reported luns data 11631 * has changed"). So reporting it here, before the reservation 11632 * check, may be technically wrong. I guess the only thing to do 11633 * would be to check for and report the reset events here, and then 11634 * check for the other unit attention types after we check for a 11635 * reservation conflict. 11636 * 11637 * XXX KDM need to fix this 11638 */ 11639 if ((entry->flags & CTL_CMD_FLAG_NO_SENSE) == 0) { 11640 ctl_ua_type ua_type; 11641 u_int sense_len = 0; 11642 11643 ua_type = ctl_build_ua(lun, initidx, &ctsio->sense_data, 11644 &sense_len, SSD_TYPE_NONE); 11645 if (ua_type != CTL_UA_NONE) { 11646 mtx_unlock(&lun->lun_lock); 11647 ctsio->scsi_status = SCSI_STATUS_CHECK_COND; 11648 ctsio->io_hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 11649 ctsio->sense_len = sense_len; 11650 ctl_done((union ctl_io *)ctsio); 11651 return (retval); 11652 } 11653 } 11654 11655 11656 if (ctl_scsiio_lun_check(lun, entry, ctsio) != 0) { 11657 mtx_unlock(&lun->lun_lock); 11658 ctl_done((union ctl_io *)ctsio); 11659 return (retval); 11660 } 11661 11662 /* 11663 * XXX CHD this is where we want to send IO to other side if 11664 * this LUN is secondary on this SC. We will need to make a copy 11665 * of the IO and flag the IO on this side as SENT_2OTHER and the flag 11666 * the copy we send as FROM_OTHER. 11667 * We also need to stuff the address of the original IO so we can 11668 * find it easily. Something similar will need be done on the other 11669 * side so when we are done we can find the copy. 11670 */ 11671 if ((lun->flags & CTL_LUN_PRIMARY_SC) == 0 && 11672 (lun->flags & CTL_LUN_PEER_SC_PRIMARY) != 0 && 11673 (entry->flags & CTL_CMD_FLAG_RUN_HERE) == 0) { 11674 union ctl_ha_msg msg_info; 11675 int isc_retval; 11676 11677 ctsio->io_hdr.flags |= CTL_FLAG_SENT_2OTHER_SC; 11678 ctsio->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 11679 mtx_unlock(&lun->lun_lock); 11680 11681 msg_info.hdr.msg_type = CTL_MSG_SERIALIZE; 11682 msg_info.hdr.original_sc = (union ctl_io *)ctsio; 11683 msg_info.hdr.serializing_sc = NULL; 11684 msg_info.hdr.nexus = ctsio->io_hdr.nexus; 11685 msg_info.scsi.tag_num = ctsio->tag_num; 11686 msg_info.scsi.tag_type = ctsio->tag_type; 11687 msg_info.scsi.cdb_len = ctsio->cdb_len; 11688 memcpy(msg_info.scsi.cdb, ctsio->cdb, CTL_MAX_CDBLEN); 11689 11690 if ((isc_retval = ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 11691 sizeof(msg_info.scsi) - sizeof(msg_info.scsi.sense_data), 11692 M_WAITOK)) > CTL_HA_STATUS_SUCCESS) { 11693 ctl_set_busy(ctsio); 11694 ctl_done((union ctl_io *)ctsio); 11695 return (retval); 11696 } 11697 return (retval); 11698 } 11699 11700 switch (ctl_check_ooa(lun, (union ctl_io *)ctsio, 11701 (union ctl_io *)TAILQ_PREV(&ctsio->io_hdr, 11702 ctl_ooaq, ooa_links))) { 11703 case CTL_ACTION_BLOCK: 11704 ctsio->io_hdr.flags |= CTL_FLAG_BLOCKED; 11705 TAILQ_INSERT_TAIL(&lun->blocked_queue, &ctsio->io_hdr, 11706 blocked_links); 11707 mtx_unlock(&lun->lun_lock); 11708 return (retval); 11709 case CTL_ACTION_PASS: 11710 case CTL_ACTION_SKIP: 11711 ctsio->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 11712 mtx_unlock(&lun->lun_lock); 11713 ctl_enqueue_rtr((union ctl_io *)ctsio); 11714 break; 11715 case CTL_ACTION_OVERLAP: 11716 mtx_unlock(&lun->lun_lock); 11717 ctl_set_overlapped_cmd(ctsio); 11718 ctl_done((union ctl_io *)ctsio); 11719 break; 11720 case CTL_ACTION_OVERLAP_TAG: 11721 mtx_unlock(&lun->lun_lock); 11722 ctl_set_overlapped_tag(ctsio, ctsio->tag_num & 0xff); 11723 ctl_done((union ctl_io *)ctsio); 11724 break; 11725 case CTL_ACTION_ERROR: 11726 default: 11727 mtx_unlock(&lun->lun_lock); 11728 ctl_set_internal_failure(ctsio, 11729 /*sks_valid*/ 0, 11730 /*retry_count*/ 0); 11731 ctl_done((union ctl_io *)ctsio); 11732 break; 11733 } 11734 return (retval); 11735} 11736 11737const struct ctl_cmd_entry * 11738ctl_get_cmd_entry(struct ctl_scsiio *ctsio, int *sa) 11739{ 11740 const struct ctl_cmd_entry *entry; 11741 int service_action; 11742 11743 entry = &ctl_cmd_table[ctsio->cdb[0]]; 11744 if (sa) 11745 *sa = ((entry->flags & CTL_CMD_FLAG_SA5) != 0); 11746 if (entry->flags & CTL_CMD_FLAG_SA5) { 11747 service_action = ctsio->cdb[1] & SERVICE_ACTION_MASK; 11748 entry = &((const struct ctl_cmd_entry *) 11749 entry->execute)[service_action]; 11750 } 11751 return (entry); 11752} 11753 11754const struct ctl_cmd_entry * 11755ctl_validate_command(struct ctl_scsiio *ctsio) 11756{ 11757 const struct ctl_cmd_entry *entry; 11758 int i, sa; 11759 uint8_t diff; 11760 11761 entry = ctl_get_cmd_entry(ctsio, &sa); 11762 if (entry->execute == NULL) { 11763 if (sa) 11764 ctl_set_invalid_field(ctsio, 11765 /*sks_valid*/ 1, 11766 /*command*/ 1, 11767 /*field*/ 1, 11768 /*bit_valid*/ 1, 11769 /*bit*/ 4); 11770 else 11771 ctl_set_invalid_opcode(ctsio); 11772 ctl_done((union ctl_io *)ctsio); 11773 return (NULL); 11774 } 11775 KASSERT(entry->length > 0, 11776 ("Not defined length for command 0x%02x/0x%02x", 11777 ctsio->cdb[0], ctsio->cdb[1])); 11778 for (i = 1; i < entry->length; i++) { 11779 diff = ctsio->cdb[i] & ~entry->usage[i - 1]; 11780 if (diff == 0) 11781 continue; 11782 ctl_set_invalid_field(ctsio, 11783 /*sks_valid*/ 1, 11784 /*command*/ 1, 11785 /*field*/ i, 11786 /*bit_valid*/ 1, 11787 /*bit*/ fls(diff) - 1); 11788 ctl_done((union ctl_io *)ctsio); 11789 return (NULL); 11790 } 11791 return (entry); 11792} 11793 11794static int 11795ctl_cmd_applicable(uint8_t lun_type, const struct ctl_cmd_entry *entry) 11796{ 11797 11798 switch (lun_type) { 11799 case T_DIRECT: 11800 if ((entry->flags & CTL_CMD_FLAG_OK_ON_DIRECT) == 0) 11801 return (0); 11802 break; 11803 case T_PROCESSOR: 11804 if ((entry->flags & CTL_CMD_FLAG_OK_ON_PROC) == 0) 11805 return (0); 11806 break; 11807 case T_CDROM: 11808 if ((entry->flags & CTL_CMD_FLAG_OK_ON_CDROM) == 0) 11809 return (0); 11810 break; 11811 default: 11812 return (0); 11813 } 11814 return (1); 11815} 11816 11817static int 11818ctl_scsiio(struct ctl_scsiio *ctsio) 11819{ 11820 int retval; 11821 const struct ctl_cmd_entry *entry; 11822 11823 retval = CTL_RETVAL_COMPLETE; 11824 11825 CTL_DEBUG_PRINT(("ctl_scsiio cdb[0]=%02X\n", ctsio->cdb[0])); 11826 11827 entry = ctl_get_cmd_entry(ctsio, NULL); 11828 11829 /* 11830 * If this I/O has been aborted, just send it straight to 11831 * ctl_done() without executing it. 11832 */ 11833 if (ctsio->io_hdr.flags & CTL_FLAG_ABORT) { 11834 ctl_done((union ctl_io *)ctsio); 11835 goto bailout; 11836 } 11837 11838 /* 11839 * All the checks should have been handled by ctl_scsiio_precheck(). 11840 * We should be clear now to just execute the I/O. 11841 */ 11842 retval = entry->execute(ctsio); 11843 11844bailout: 11845 return (retval); 11846} 11847 11848/* 11849 * Since we only implement one target right now, a bus reset simply resets 11850 * our single target. 11851 */ 11852static int 11853ctl_bus_reset(struct ctl_softc *softc, union ctl_io *io) 11854{ 11855 return(ctl_target_reset(softc, io, CTL_UA_BUS_RESET)); 11856} 11857 11858static int 11859ctl_target_reset(struct ctl_softc *softc, union ctl_io *io, 11860 ctl_ua_type ua_type) 11861{ 11862 struct ctl_port *port; 11863 struct ctl_lun *lun; 11864 int retval; 11865 11866 if (!(io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)) { 11867 union ctl_ha_msg msg_info; 11868 11869 msg_info.hdr.nexus = io->io_hdr.nexus; 11870 if (ua_type==CTL_UA_TARG_RESET) 11871 msg_info.task.task_action = CTL_TASK_TARGET_RESET; 11872 else 11873 msg_info.task.task_action = CTL_TASK_BUS_RESET; 11874 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 11875 msg_info.hdr.original_sc = NULL; 11876 msg_info.hdr.serializing_sc = NULL; 11877 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 11878 sizeof(msg_info.task), M_WAITOK); 11879 } 11880 retval = 0; 11881 11882 mtx_lock(&softc->ctl_lock); 11883 port = ctl_io_port(&io->io_hdr); 11884 STAILQ_FOREACH(lun, &softc->lun_list, links) { 11885 if (port != NULL && 11886 ctl_lun_map_to_port(port, lun->lun) == UINT32_MAX) 11887 continue; 11888 retval += ctl_do_lun_reset(lun, io, ua_type); 11889 } 11890 mtx_unlock(&softc->ctl_lock); 11891 io->taskio.task_status = CTL_TASK_FUNCTION_COMPLETE; 11892 return (retval); 11893} 11894 11895/* 11896 * The LUN should always be set. The I/O is optional, and is used to 11897 * distinguish between I/Os sent by this initiator, and by other 11898 * initiators. We set unit attention for initiators other than this one. 11899 * SAM-3 is vague on this point. It does say that a unit attention should 11900 * be established for other initiators when a LUN is reset (see section 11901 * 5.7.3), but it doesn't specifically say that the unit attention should 11902 * be established for this particular initiator when a LUN is reset. Here 11903 * is the relevant text, from SAM-3 rev 8: 11904 * 11905 * 5.7.2 When a SCSI initiator port aborts its own tasks 11906 * 11907 * When a SCSI initiator port causes its own task(s) to be aborted, no 11908 * notification that the task(s) have been aborted shall be returned to 11909 * the SCSI initiator port other than the completion response for the 11910 * command or task management function action that caused the task(s) to 11911 * be aborted and notification(s) associated with related effects of the 11912 * action (e.g., a reset unit attention condition). 11913 * 11914 * XXX KDM for now, we're setting unit attention for all initiators. 11915 */ 11916static int 11917ctl_do_lun_reset(struct ctl_lun *lun, union ctl_io *io, ctl_ua_type ua_type) 11918{ 11919 union ctl_io *xio; 11920#if 0 11921 uint32_t initidx; 11922#endif 11923 int i; 11924 11925 mtx_lock(&lun->lun_lock); 11926 /* 11927 * Run through the OOA queue and abort each I/O. 11928 */ 11929 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 11930 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 11931 xio->io_hdr.flags |= CTL_FLAG_ABORT | CTL_FLAG_ABORT_STATUS; 11932 } 11933 11934 /* 11935 * This version sets unit attention for every 11936 */ 11937#if 0 11938 initidx = ctl_get_initindex(&io->io_hdr.nexus); 11939 ctl_est_ua_all(lun, initidx, ua_type); 11940#else 11941 ctl_est_ua_all(lun, -1, ua_type); 11942#endif 11943 11944 /* 11945 * A reset (any kind, really) clears reservations established with 11946 * RESERVE/RELEASE. It does not clear reservations established 11947 * with PERSISTENT RESERVE OUT, but we don't support that at the 11948 * moment anyway. See SPC-2, section 5.6. SPC-3 doesn't address 11949 * reservations made with the RESERVE/RELEASE commands, because 11950 * those commands are obsolete in SPC-3. 11951 */ 11952 lun->flags &= ~CTL_LUN_RESERVED; 11953 11954#ifdef CTL_WITH_CA 11955 for (i = 0; i < CTL_MAX_INITIATORS; i++) 11956 ctl_clear_mask(lun->have_ca, i); 11957#endif 11958 lun->prevent_count = 0; 11959 for (i = 0; i < CTL_MAX_INITIATORS; i++) 11960 ctl_clear_mask(lun->prevent, i); 11961 mtx_unlock(&lun->lun_lock); 11962 11963 return (0); 11964} 11965 11966static int 11967ctl_lun_reset(struct ctl_softc *softc, union ctl_io *io) 11968{ 11969 struct ctl_lun *lun; 11970 uint32_t targ_lun; 11971 int retval; 11972 11973 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 11974 mtx_lock(&softc->ctl_lock); 11975 if ((targ_lun >= CTL_MAX_LUNS) || 11976 (lun = softc->ctl_luns[targ_lun]) == NULL) { 11977 mtx_unlock(&softc->ctl_lock); 11978 io->taskio.task_status = CTL_TASK_LUN_DOES_NOT_EXIST; 11979 return (1); 11980 } 11981 retval = ctl_do_lun_reset(lun, io, CTL_UA_LUN_RESET); 11982 mtx_unlock(&softc->ctl_lock); 11983 io->taskio.task_status = CTL_TASK_FUNCTION_COMPLETE; 11984 11985 if ((io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) == 0) { 11986 union ctl_ha_msg msg_info; 11987 11988 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 11989 msg_info.hdr.nexus = io->io_hdr.nexus; 11990 msg_info.task.task_action = CTL_TASK_LUN_RESET; 11991 msg_info.hdr.original_sc = NULL; 11992 msg_info.hdr.serializing_sc = NULL; 11993 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 11994 sizeof(msg_info.task), M_WAITOK); 11995 } 11996 return (retval); 11997} 11998 11999static void 12000ctl_abort_tasks_lun(struct ctl_lun *lun, uint32_t targ_port, uint32_t init_id, 12001 int other_sc) 12002{ 12003 union ctl_io *xio; 12004 12005 mtx_assert(&lun->lun_lock, MA_OWNED); 12006 12007 /* 12008 * Run through the OOA queue and attempt to find the given I/O. 12009 * The target port, initiator ID, tag type and tag number have to 12010 * match the values that we got from the initiator. If we have an 12011 * untagged command to abort, simply abort the first untagged command 12012 * we come to. We only allow one untagged command at a time of course. 12013 */ 12014 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 12015 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 12016 12017 if ((targ_port == UINT32_MAX || 12018 targ_port == xio->io_hdr.nexus.targ_port) && 12019 (init_id == UINT32_MAX || 12020 init_id == xio->io_hdr.nexus.initid)) { 12021 if (targ_port != xio->io_hdr.nexus.targ_port || 12022 init_id != xio->io_hdr.nexus.initid) 12023 xio->io_hdr.flags |= CTL_FLAG_ABORT_STATUS; 12024 xio->io_hdr.flags |= CTL_FLAG_ABORT; 12025 if (!other_sc && !(lun->flags & CTL_LUN_PRIMARY_SC)) { 12026 union ctl_ha_msg msg_info; 12027 12028 msg_info.hdr.nexus = xio->io_hdr.nexus; 12029 msg_info.task.task_action = CTL_TASK_ABORT_TASK; 12030 msg_info.task.tag_num = xio->scsiio.tag_num; 12031 msg_info.task.tag_type = xio->scsiio.tag_type; 12032 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 12033 msg_info.hdr.original_sc = NULL; 12034 msg_info.hdr.serializing_sc = NULL; 12035 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 12036 sizeof(msg_info.task), M_NOWAIT); 12037 } 12038 } 12039 } 12040} 12041 12042static int 12043ctl_abort_task_set(union ctl_io *io) 12044{ 12045 struct ctl_softc *softc = control_softc; 12046 struct ctl_lun *lun; 12047 uint32_t targ_lun; 12048 12049 /* 12050 * Look up the LUN. 12051 */ 12052 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12053 mtx_lock(&softc->ctl_lock); 12054 if ((targ_lun >= CTL_MAX_LUNS) || 12055 (lun = softc->ctl_luns[targ_lun]) == NULL) { 12056 mtx_unlock(&softc->ctl_lock); 12057 io->taskio.task_status = CTL_TASK_LUN_DOES_NOT_EXIST; 12058 return (1); 12059 } 12060 12061 mtx_lock(&lun->lun_lock); 12062 mtx_unlock(&softc->ctl_lock); 12063 if (io->taskio.task_action == CTL_TASK_ABORT_TASK_SET) { 12064 ctl_abort_tasks_lun(lun, io->io_hdr.nexus.targ_port, 12065 io->io_hdr.nexus.initid, 12066 (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) != 0); 12067 } else { /* CTL_TASK_CLEAR_TASK_SET */ 12068 ctl_abort_tasks_lun(lun, UINT32_MAX, UINT32_MAX, 12069 (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) != 0); 12070 } 12071 mtx_unlock(&lun->lun_lock); 12072 io->taskio.task_status = CTL_TASK_FUNCTION_COMPLETE; 12073 return (0); 12074} 12075 12076static int 12077ctl_i_t_nexus_reset(union ctl_io *io) 12078{ 12079 struct ctl_softc *softc = control_softc; 12080 struct ctl_lun *lun; 12081 uint32_t initidx; 12082 12083 if (!(io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)) { 12084 union ctl_ha_msg msg_info; 12085 12086 msg_info.hdr.nexus = io->io_hdr.nexus; 12087 msg_info.task.task_action = CTL_TASK_I_T_NEXUS_RESET; 12088 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 12089 msg_info.hdr.original_sc = NULL; 12090 msg_info.hdr.serializing_sc = NULL; 12091 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 12092 sizeof(msg_info.task), M_WAITOK); 12093 } 12094 12095 initidx = ctl_get_initindex(&io->io_hdr.nexus); 12096 mtx_lock(&softc->ctl_lock); 12097 STAILQ_FOREACH(lun, &softc->lun_list, links) { 12098 mtx_lock(&lun->lun_lock); 12099 ctl_abort_tasks_lun(lun, io->io_hdr.nexus.targ_port, 12100 io->io_hdr.nexus.initid, 1); 12101#ifdef CTL_WITH_CA 12102 ctl_clear_mask(lun->have_ca, initidx); 12103#endif 12104 if ((lun->flags & CTL_LUN_RESERVED) && (lun->res_idx == initidx)) 12105 lun->flags &= ~CTL_LUN_RESERVED; 12106 if (ctl_is_set(lun->prevent, initidx)) { 12107 ctl_clear_mask(lun->prevent, initidx); 12108 lun->prevent_count--; 12109 } 12110 ctl_est_ua(lun, initidx, CTL_UA_I_T_NEXUS_LOSS); 12111 mtx_unlock(&lun->lun_lock); 12112 } 12113 mtx_unlock(&softc->ctl_lock); 12114 io->taskio.task_status = CTL_TASK_FUNCTION_COMPLETE; 12115 return (0); 12116} 12117 12118static int 12119ctl_abort_task(union ctl_io *io) 12120{ 12121 union ctl_io *xio; 12122 struct ctl_lun *lun; 12123 struct ctl_softc *softc; 12124#if 0 12125 struct sbuf sb; 12126 char printbuf[128]; 12127#endif 12128 int found; 12129 uint32_t targ_lun; 12130 12131 softc = control_softc; 12132 found = 0; 12133 12134 /* 12135 * Look up the LUN. 12136 */ 12137 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12138 mtx_lock(&softc->ctl_lock); 12139 if ((targ_lun >= CTL_MAX_LUNS) || 12140 (lun = softc->ctl_luns[targ_lun]) == NULL) { 12141 mtx_unlock(&softc->ctl_lock); 12142 io->taskio.task_status = CTL_TASK_LUN_DOES_NOT_EXIST; 12143 return (1); 12144 } 12145 12146#if 0 12147 printf("ctl_abort_task: called for lun %lld, tag %d type %d\n", 12148 lun->lun, io->taskio.tag_num, io->taskio.tag_type); 12149#endif 12150 12151 mtx_lock(&lun->lun_lock); 12152 mtx_unlock(&softc->ctl_lock); 12153 /* 12154 * Run through the OOA queue and attempt to find the given I/O. 12155 * The target port, initiator ID, tag type and tag number have to 12156 * match the values that we got from the initiator. If we have an 12157 * untagged command to abort, simply abort the first untagged command 12158 * we come to. We only allow one untagged command at a time of course. 12159 */ 12160 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 12161 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 12162#if 0 12163 sbuf_new(&sb, printbuf, sizeof(printbuf), SBUF_FIXEDLEN); 12164 12165 sbuf_printf(&sb, "LUN %lld tag %d type %d%s%s%s%s: ", 12166 lun->lun, xio->scsiio.tag_num, 12167 xio->scsiio.tag_type, 12168 (xio->io_hdr.blocked_links.tqe_prev 12169 == NULL) ? "" : " BLOCKED", 12170 (xio->io_hdr.flags & 12171 CTL_FLAG_DMA_INPROG) ? " DMA" : "", 12172 (xio->io_hdr.flags & 12173 CTL_FLAG_ABORT) ? " ABORT" : "", 12174 (xio->io_hdr.flags & 12175 CTL_FLAG_IS_WAS_ON_RTR ? " RTR" : "")); 12176 ctl_scsi_command_string(&xio->scsiio, NULL, &sb); 12177 sbuf_finish(&sb); 12178 printf("%s\n", sbuf_data(&sb)); 12179#endif 12180 12181 if ((xio->io_hdr.nexus.targ_port != io->io_hdr.nexus.targ_port) 12182 || (xio->io_hdr.nexus.initid != io->io_hdr.nexus.initid) 12183 || (xio->io_hdr.flags & CTL_FLAG_ABORT)) 12184 continue; 12185 12186 /* 12187 * If the abort says that the task is untagged, the 12188 * task in the queue must be untagged. Otherwise, 12189 * we just check to see whether the tag numbers 12190 * match. This is because the QLogic firmware 12191 * doesn't pass back the tag type in an abort 12192 * request. 12193 */ 12194#if 0 12195 if (((xio->scsiio.tag_type == CTL_TAG_UNTAGGED) 12196 && (io->taskio.tag_type == CTL_TAG_UNTAGGED)) 12197 || (xio->scsiio.tag_num == io->taskio.tag_num)) 12198#endif 12199 /* 12200 * XXX KDM we've got problems with FC, because it 12201 * doesn't send down a tag type with aborts. So we 12202 * can only really go by the tag number... 12203 * This may cause problems with parallel SCSI. 12204 * Need to figure that out!! 12205 */ 12206 if (xio->scsiio.tag_num == io->taskio.tag_num) { 12207 xio->io_hdr.flags |= CTL_FLAG_ABORT; 12208 found = 1; 12209 if ((io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) == 0 && 12210 !(lun->flags & CTL_LUN_PRIMARY_SC)) { 12211 union ctl_ha_msg msg_info; 12212 12213 msg_info.hdr.nexus = io->io_hdr.nexus; 12214 msg_info.task.task_action = CTL_TASK_ABORT_TASK; 12215 msg_info.task.tag_num = io->taskio.tag_num; 12216 msg_info.task.tag_type = io->taskio.tag_type; 12217 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 12218 msg_info.hdr.original_sc = NULL; 12219 msg_info.hdr.serializing_sc = NULL; 12220#if 0 12221 printf("Sent Abort to other side\n"); 12222#endif 12223 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 12224 sizeof(msg_info.task), M_NOWAIT); 12225 } 12226#if 0 12227 printf("ctl_abort_task: found I/O to abort\n"); 12228#endif 12229 } 12230 } 12231 mtx_unlock(&lun->lun_lock); 12232 12233 if (found == 0) { 12234 /* 12235 * This isn't really an error. It's entirely possible for 12236 * the abort and command completion to cross on the wire. 12237 * This is more of an informative/diagnostic error. 12238 */ 12239#if 0 12240 printf("ctl_abort_task: ABORT sent for nonexistent I/O: " 12241 "%u:%u:%u tag %d type %d\n", 12242 io->io_hdr.nexus.initid, 12243 io->io_hdr.nexus.targ_port, 12244 io->io_hdr.nexus.targ_lun, io->taskio.tag_num, 12245 io->taskio.tag_type); 12246#endif 12247 } 12248 io->taskio.task_status = CTL_TASK_FUNCTION_COMPLETE; 12249 return (0); 12250} 12251 12252static int 12253ctl_query_task(union ctl_io *io, int task_set) 12254{ 12255 union ctl_io *xio; 12256 struct ctl_lun *lun; 12257 struct ctl_softc *softc; 12258 int found = 0; 12259 uint32_t targ_lun; 12260 12261 softc = control_softc; 12262 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12263 mtx_lock(&softc->ctl_lock); 12264 if ((targ_lun >= CTL_MAX_LUNS) || 12265 (lun = softc->ctl_luns[targ_lun]) == NULL) { 12266 mtx_unlock(&softc->ctl_lock); 12267 io->taskio.task_status = CTL_TASK_LUN_DOES_NOT_EXIST; 12268 return (1); 12269 } 12270 mtx_lock(&lun->lun_lock); 12271 mtx_unlock(&softc->ctl_lock); 12272 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 12273 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 12274 12275 if ((xio->io_hdr.nexus.targ_port != io->io_hdr.nexus.targ_port) 12276 || (xio->io_hdr.nexus.initid != io->io_hdr.nexus.initid) 12277 || (xio->io_hdr.flags & CTL_FLAG_ABORT)) 12278 continue; 12279 12280 if (task_set || xio->scsiio.tag_num == io->taskio.tag_num) { 12281 found = 1; 12282 break; 12283 } 12284 } 12285 mtx_unlock(&lun->lun_lock); 12286 if (found) 12287 io->taskio.task_status = CTL_TASK_FUNCTION_SUCCEEDED; 12288 else 12289 io->taskio.task_status = CTL_TASK_FUNCTION_COMPLETE; 12290 return (0); 12291} 12292 12293static int 12294ctl_query_async_event(union ctl_io *io) 12295{ 12296 struct ctl_lun *lun; 12297 struct ctl_softc *softc; 12298 ctl_ua_type ua; 12299 uint32_t targ_lun, initidx; 12300 12301 softc = control_softc; 12302 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12303 mtx_lock(&softc->ctl_lock); 12304 if ((targ_lun >= CTL_MAX_LUNS) || 12305 (lun = softc->ctl_luns[targ_lun]) == NULL) { 12306 mtx_unlock(&softc->ctl_lock); 12307 io->taskio.task_status = CTL_TASK_LUN_DOES_NOT_EXIST; 12308 return (1); 12309 } 12310 mtx_lock(&lun->lun_lock); 12311 mtx_unlock(&softc->ctl_lock); 12312 initidx = ctl_get_initindex(&io->io_hdr.nexus); 12313 ua = ctl_build_qae(lun, initidx, io->taskio.task_resp); 12314 mtx_unlock(&lun->lun_lock); 12315 if (ua != CTL_UA_NONE) 12316 io->taskio.task_status = CTL_TASK_FUNCTION_SUCCEEDED; 12317 else 12318 io->taskio.task_status = CTL_TASK_FUNCTION_COMPLETE; 12319 return (0); 12320} 12321 12322static void 12323ctl_run_task(union ctl_io *io) 12324{ 12325 struct ctl_softc *softc = control_softc; 12326 int retval = 1; 12327 12328 CTL_DEBUG_PRINT(("ctl_run_task\n")); 12329 KASSERT(io->io_hdr.io_type == CTL_IO_TASK, 12330 ("ctl_run_task: Unextected io_type %d\n", io->io_hdr.io_type)); 12331 io->taskio.task_status = CTL_TASK_FUNCTION_NOT_SUPPORTED; 12332 bzero(io->taskio.task_resp, sizeof(io->taskio.task_resp)); 12333 switch (io->taskio.task_action) { 12334 case CTL_TASK_ABORT_TASK: 12335 retval = ctl_abort_task(io); 12336 break; 12337 case CTL_TASK_ABORT_TASK_SET: 12338 case CTL_TASK_CLEAR_TASK_SET: 12339 retval = ctl_abort_task_set(io); 12340 break; 12341 case CTL_TASK_CLEAR_ACA: 12342 break; 12343 case CTL_TASK_I_T_NEXUS_RESET: 12344 retval = ctl_i_t_nexus_reset(io); 12345 break; 12346 case CTL_TASK_LUN_RESET: 12347 retval = ctl_lun_reset(softc, io); 12348 break; 12349 case CTL_TASK_TARGET_RESET: 12350 retval = ctl_target_reset(softc, io, CTL_UA_TARG_RESET); 12351 break; 12352 case CTL_TASK_BUS_RESET: 12353 retval = ctl_bus_reset(softc, io); 12354 break; 12355 case CTL_TASK_PORT_LOGIN: 12356 break; 12357 case CTL_TASK_PORT_LOGOUT: 12358 break; 12359 case CTL_TASK_QUERY_TASK: 12360 retval = ctl_query_task(io, 0); 12361 break; 12362 case CTL_TASK_QUERY_TASK_SET: 12363 retval = ctl_query_task(io, 1); 12364 break; 12365 case CTL_TASK_QUERY_ASYNC_EVENT: 12366 retval = ctl_query_async_event(io); 12367 break; 12368 default: 12369 printf("%s: got unknown task management event %d\n", 12370 __func__, io->taskio.task_action); 12371 break; 12372 } 12373 if (retval == 0) 12374 io->io_hdr.status = CTL_SUCCESS; 12375 else 12376 io->io_hdr.status = CTL_ERROR; 12377 ctl_done(io); 12378} 12379 12380/* 12381 * For HA operation. Handle commands that come in from the other 12382 * controller. 12383 */ 12384static void 12385ctl_handle_isc(union ctl_io *io) 12386{ 12387 int free_io; 12388 struct ctl_lun *lun; 12389 struct ctl_softc *softc = control_softc; 12390 uint32_t targ_lun; 12391 12392 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12393 lun = softc->ctl_luns[targ_lun]; 12394 12395 switch (io->io_hdr.msg_type) { 12396 case CTL_MSG_SERIALIZE: 12397 free_io = ctl_serialize_other_sc_cmd(&io->scsiio); 12398 break; 12399 case CTL_MSG_R2R: { 12400 const struct ctl_cmd_entry *entry; 12401 12402 /* 12403 * This is only used in SER_ONLY mode. 12404 */ 12405 free_io = 0; 12406 entry = ctl_get_cmd_entry(&io->scsiio, NULL); 12407 mtx_lock(&lun->lun_lock); 12408 if (ctl_scsiio_lun_check(lun, 12409 entry, (struct ctl_scsiio *)io) != 0) { 12410 mtx_unlock(&lun->lun_lock); 12411 ctl_done(io); 12412 break; 12413 } 12414 io->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 12415 mtx_unlock(&lun->lun_lock); 12416 ctl_enqueue_rtr(io); 12417 break; 12418 } 12419 case CTL_MSG_FINISH_IO: 12420 if (softc->ha_mode == CTL_HA_MODE_XFER) { 12421 free_io = 0; 12422 ctl_done(io); 12423 } else { 12424 free_io = 1; 12425 mtx_lock(&lun->lun_lock); 12426 TAILQ_REMOVE(&lun->ooa_queue, &io->io_hdr, 12427 ooa_links); 12428 ctl_check_blocked(lun); 12429 mtx_unlock(&lun->lun_lock); 12430 } 12431 break; 12432 case CTL_MSG_PERS_ACTION: 12433 ctl_hndl_per_res_out_on_other_sc( 12434 (union ctl_ha_msg *)&io->presio.pr_msg); 12435 free_io = 1; 12436 break; 12437 case CTL_MSG_BAD_JUJU: 12438 free_io = 0; 12439 ctl_done(io); 12440 break; 12441 case CTL_MSG_DATAMOVE: 12442 /* Only used in XFER mode */ 12443 free_io = 0; 12444 ctl_datamove_remote(io); 12445 break; 12446 case CTL_MSG_DATAMOVE_DONE: 12447 /* Only used in XFER mode */ 12448 free_io = 0; 12449 io->scsiio.be_move_done(io); 12450 break; 12451 case CTL_MSG_FAILOVER: 12452 ctl_failover_lun(io); 12453 free_io = 1; 12454 break; 12455 default: 12456 free_io = 1; 12457 printf("%s: Invalid message type %d\n", 12458 __func__, io->io_hdr.msg_type); 12459 break; 12460 } 12461 if (free_io) 12462 ctl_free_io(io); 12463 12464} 12465 12466 12467/* 12468 * Returns the match type in the case of a match, or CTL_LUN_PAT_NONE if 12469 * there is no match. 12470 */ 12471static ctl_lun_error_pattern 12472ctl_cmd_pattern_match(struct ctl_scsiio *ctsio, struct ctl_error_desc *desc) 12473{ 12474 const struct ctl_cmd_entry *entry; 12475 ctl_lun_error_pattern filtered_pattern, pattern; 12476 12477 pattern = desc->error_pattern; 12478 12479 /* 12480 * XXX KDM we need more data passed into this function to match a 12481 * custom pattern, and we actually need to implement custom pattern 12482 * matching. 12483 */ 12484 if (pattern & CTL_LUN_PAT_CMD) 12485 return (CTL_LUN_PAT_CMD); 12486 12487 if ((pattern & CTL_LUN_PAT_MASK) == CTL_LUN_PAT_ANY) 12488 return (CTL_LUN_PAT_ANY); 12489 12490 entry = ctl_get_cmd_entry(ctsio, NULL); 12491 12492 filtered_pattern = entry->pattern & pattern; 12493 12494 /* 12495 * If the user requested specific flags in the pattern (e.g. 12496 * CTL_LUN_PAT_RANGE), make sure the command supports all of those 12497 * flags. 12498 * 12499 * If the user did not specify any flags, it doesn't matter whether 12500 * or not the command supports the flags. 12501 */ 12502 if ((filtered_pattern & ~CTL_LUN_PAT_MASK) != 12503 (pattern & ~CTL_LUN_PAT_MASK)) 12504 return (CTL_LUN_PAT_NONE); 12505 12506 /* 12507 * If the user asked for a range check, see if the requested LBA 12508 * range overlaps with this command's LBA range. 12509 */ 12510 if (filtered_pattern & CTL_LUN_PAT_RANGE) { 12511 uint64_t lba1; 12512 uint64_t len1; 12513 ctl_action action; 12514 int retval; 12515 12516 retval = ctl_get_lba_len((union ctl_io *)ctsio, &lba1, &len1); 12517 if (retval != 0) 12518 return (CTL_LUN_PAT_NONE); 12519 12520 action = ctl_extent_check_lba(lba1, len1, desc->lba_range.lba, 12521 desc->lba_range.len, FALSE); 12522 /* 12523 * A "pass" means that the LBA ranges don't overlap, so 12524 * this doesn't match the user's range criteria. 12525 */ 12526 if (action == CTL_ACTION_PASS) 12527 return (CTL_LUN_PAT_NONE); 12528 } 12529 12530 return (filtered_pattern); 12531} 12532 12533static void 12534ctl_inject_error(struct ctl_lun *lun, union ctl_io *io) 12535{ 12536 struct ctl_error_desc *desc, *desc2; 12537 12538 mtx_assert(&lun->lun_lock, MA_OWNED); 12539 12540 STAILQ_FOREACH_SAFE(desc, &lun->error_list, links, desc2) { 12541 ctl_lun_error_pattern pattern; 12542 /* 12543 * Check to see whether this particular command matches 12544 * the pattern in the descriptor. 12545 */ 12546 pattern = ctl_cmd_pattern_match(&io->scsiio, desc); 12547 if ((pattern & CTL_LUN_PAT_MASK) == CTL_LUN_PAT_NONE) 12548 continue; 12549 12550 switch (desc->lun_error & CTL_LUN_INJ_TYPE) { 12551 case CTL_LUN_INJ_ABORTED: 12552 ctl_set_aborted(&io->scsiio); 12553 break; 12554 case CTL_LUN_INJ_MEDIUM_ERR: 12555 ctl_set_medium_error(&io->scsiio, 12556 (io->io_hdr.flags & CTL_FLAG_DATA_MASK) != 12557 CTL_FLAG_DATA_OUT); 12558 break; 12559 case CTL_LUN_INJ_UA: 12560 /* 29h/00h POWER ON, RESET, OR BUS DEVICE RESET 12561 * OCCURRED */ 12562 ctl_set_ua(&io->scsiio, 0x29, 0x00); 12563 break; 12564 case CTL_LUN_INJ_CUSTOM: 12565 /* 12566 * We're assuming the user knows what he is doing. 12567 * Just copy the sense information without doing 12568 * checks. 12569 */ 12570 bcopy(&desc->custom_sense, &io->scsiio.sense_data, 12571 MIN(sizeof(desc->custom_sense), 12572 sizeof(io->scsiio.sense_data))); 12573 io->scsiio.scsi_status = SCSI_STATUS_CHECK_COND; 12574 io->scsiio.sense_len = SSD_FULL_SIZE; 12575 io->io_hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 12576 break; 12577 case CTL_LUN_INJ_NONE: 12578 default: 12579 /* 12580 * If this is an error injection type we don't know 12581 * about, clear the continuous flag (if it is set) 12582 * so it will get deleted below. 12583 */ 12584 desc->lun_error &= ~CTL_LUN_INJ_CONTINUOUS; 12585 break; 12586 } 12587 /* 12588 * By default, each error injection action is a one-shot 12589 */ 12590 if (desc->lun_error & CTL_LUN_INJ_CONTINUOUS) 12591 continue; 12592 12593 STAILQ_REMOVE(&lun->error_list, desc, ctl_error_desc, links); 12594 12595 free(desc, M_CTL); 12596 } 12597} 12598 12599#ifdef CTL_IO_DELAY 12600static void 12601ctl_datamove_timer_wakeup(void *arg) 12602{ 12603 union ctl_io *io; 12604 12605 io = (union ctl_io *)arg; 12606 12607 ctl_datamove(io); 12608} 12609#endif /* CTL_IO_DELAY */ 12610 12611void 12612ctl_datamove(union ctl_io *io) 12613{ 12614 struct ctl_lun *lun; 12615 void (*fe_datamove)(union ctl_io *io); 12616 12617 mtx_assert(&control_softc->ctl_lock, MA_NOTOWNED); 12618 12619 CTL_DEBUG_PRINT(("ctl_datamove\n")); 12620 12621 lun = (struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 12622#ifdef CTL_TIME_IO 12623 if ((time_uptime - io->io_hdr.start_time) > ctl_time_io_secs) { 12624 char str[256]; 12625 char path_str[64]; 12626 struct sbuf sb; 12627 12628 ctl_scsi_path_string(io, path_str, sizeof(path_str)); 12629 sbuf_new(&sb, str, sizeof(str), SBUF_FIXEDLEN); 12630 12631 sbuf_cat(&sb, path_str); 12632 switch (io->io_hdr.io_type) { 12633 case CTL_IO_SCSI: 12634 ctl_scsi_command_string(&io->scsiio, NULL, &sb); 12635 sbuf_printf(&sb, "\n"); 12636 sbuf_cat(&sb, path_str); 12637 sbuf_printf(&sb, "Tag: 0x%04x, type %d\n", 12638 io->scsiio.tag_num, io->scsiio.tag_type); 12639 break; 12640 case CTL_IO_TASK: 12641 sbuf_printf(&sb, "Task I/O type: %d, Tag: 0x%04x, " 12642 "Tag Type: %d\n", io->taskio.task_action, 12643 io->taskio.tag_num, io->taskio.tag_type); 12644 break; 12645 default: 12646 panic("%s: Invalid CTL I/O type %d\n", 12647 __func__, io->io_hdr.io_type); 12648 } 12649 sbuf_cat(&sb, path_str); 12650 sbuf_printf(&sb, "ctl_datamove: %jd seconds\n", 12651 (intmax_t)time_uptime - io->io_hdr.start_time); 12652 sbuf_finish(&sb); 12653 printf("%s", sbuf_data(&sb)); 12654 } 12655#endif /* CTL_TIME_IO */ 12656 12657#ifdef CTL_IO_DELAY 12658 if (io->io_hdr.flags & CTL_FLAG_DELAY_DONE) { 12659 io->io_hdr.flags &= ~CTL_FLAG_DELAY_DONE; 12660 } else { 12661 if ((lun != NULL) 12662 && (lun->delay_info.datamove_delay > 0)) { 12663 12664 callout_init(&io->io_hdr.delay_callout, /*mpsafe*/ 1); 12665 io->io_hdr.flags |= CTL_FLAG_DELAY_DONE; 12666 callout_reset(&io->io_hdr.delay_callout, 12667 lun->delay_info.datamove_delay * hz, 12668 ctl_datamove_timer_wakeup, io); 12669 if (lun->delay_info.datamove_type == 12670 CTL_DELAY_TYPE_ONESHOT) 12671 lun->delay_info.datamove_delay = 0; 12672 return; 12673 } 12674 } 12675#endif 12676 12677 /* 12678 * This command has been aborted. Set the port status, so we fail 12679 * the data move. 12680 */ 12681 if (io->io_hdr.flags & CTL_FLAG_ABORT) { 12682 printf("ctl_datamove: tag 0x%04x on (%u:%u:%u) aborted\n", 12683 io->scsiio.tag_num, io->io_hdr.nexus.initid, 12684 io->io_hdr.nexus.targ_port, 12685 io->io_hdr.nexus.targ_lun); 12686 io->io_hdr.port_status = 31337; 12687 /* 12688 * Note that the backend, in this case, will get the 12689 * callback in its context. In other cases it may get 12690 * called in the frontend's interrupt thread context. 12691 */ 12692 io->scsiio.be_move_done(io); 12693 return; 12694 } 12695 12696 /* Don't confuse frontend with zero length data move. */ 12697 if (io->scsiio.kern_data_len == 0) { 12698 io->scsiio.be_move_done(io); 12699 return; 12700 } 12701 12702 fe_datamove = ctl_io_port(&io->io_hdr)->fe_datamove; 12703 fe_datamove(io); 12704} 12705 12706static void 12707ctl_send_datamove_done(union ctl_io *io, int have_lock) 12708{ 12709 union ctl_ha_msg msg; 12710#ifdef CTL_TIME_IO 12711 struct bintime cur_bt; 12712#endif 12713 12714 memset(&msg, 0, sizeof(msg)); 12715 msg.hdr.msg_type = CTL_MSG_DATAMOVE_DONE; 12716 msg.hdr.original_sc = io; 12717 msg.hdr.serializing_sc = io->io_hdr.serializing_sc; 12718 msg.hdr.nexus = io->io_hdr.nexus; 12719 msg.hdr.status = io->io_hdr.status; 12720 msg.scsi.tag_num = io->scsiio.tag_num; 12721 msg.scsi.tag_type = io->scsiio.tag_type; 12722 msg.scsi.scsi_status = io->scsiio.scsi_status; 12723 memcpy(&msg.scsi.sense_data, &io->scsiio.sense_data, 12724 io->scsiio.sense_len); 12725 msg.scsi.sense_len = io->scsiio.sense_len; 12726 msg.scsi.sense_residual = io->scsiio.sense_residual; 12727 msg.scsi.fetd_status = io->io_hdr.port_status; 12728 msg.scsi.residual = io->scsiio.residual; 12729 io->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 12730 if (io->io_hdr.flags & CTL_FLAG_FAILOVER) { 12731 ctl_failover_io(io, /*have_lock*/ have_lock); 12732 return; 12733 } 12734 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, 12735 sizeof(msg.scsi) - sizeof(msg.scsi.sense_data) + 12736 msg.scsi.sense_len, M_WAITOK); 12737 12738#ifdef CTL_TIME_IO 12739 getbinuptime(&cur_bt); 12740 bintime_sub(&cur_bt, &io->io_hdr.dma_start_bt); 12741 bintime_add(&io->io_hdr.dma_bt, &cur_bt); 12742#endif 12743 io->io_hdr.num_dmas++; 12744} 12745 12746/* 12747 * The DMA to the remote side is done, now we need to tell the other side 12748 * we're done so it can continue with its data movement. 12749 */ 12750static void 12751ctl_datamove_remote_write_cb(struct ctl_ha_dt_req *rq) 12752{ 12753 union ctl_io *io; 12754 uint32_t i; 12755 12756 io = rq->context; 12757 12758 if (rq->ret != CTL_HA_STATUS_SUCCESS) { 12759 printf("%s: ISC DMA write failed with error %d", __func__, 12760 rq->ret); 12761 ctl_set_internal_failure(&io->scsiio, 12762 /*sks_valid*/ 1, 12763 /*retry_count*/ rq->ret); 12764 } 12765 12766 ctl_dt_req_free(rq); 12767 12768 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 12769 free(io->io_hdr.local_sglist[i].addr, M_CTL); 12770 free(io->io_hdr.remote_sglist, M_CTL); 12771 io->io_hdr.remote_sglist = NULL; 12772 io->io_hdr.local_sglist = NULL; 12773 12774 /* 12775 * The data is in local and remote memory, so now we need to send 12776 * status (good or back) back to the other side. 12777 */ 12778 ctl_send_datamove_done(io, /*have_lock*/ 0); 12779} 12780 12781/* 12782 * We've moved the data from the host/controller into local memory. Now we 12783 * need to push it over to the remote controller's memory. 12784 */ 12785static int 12786ctl_datamove_remote_dm_write_cb(union ctl_io *io) 12787{ 12788 int retval; 12789 12790 retval = ctl_datamove_remote_xfer(io, CTL_HA_DT_CMD_WRITE, 12791 ctl_datamove_remote_write_cb); 12792 return (retval); 12793} 12794 12795static void 12796ctl_datamove_remote_write(union ctl_io *io) 12797{ 12798 int retval; 12799 void (*fe_datamove)(union ctl_io *io); 12800 12801 /* 12802 * - Get the data from the host/HBA into local memory. 12803 * - DMA memory from the local controller to the remote controller. 12804 * - Send status back to the remote controller. 12805 */ 12806 12807 retval = ctl_datamove_remote_sgl_setup(io); 12808 if (retval != 0) 12809 return; 12810 12811 /* Switch the pointer over so the FETD knows what to do */ 12812 io->scsiio.kern_data_ptr = (uint8_t *)io->io_hdr.local_sglist; 12813 12814 /* 12815 * Use a custom move done callback, since we need to send completion 12816 * back to the other controller, not to the backend on this side. 12817 */ 12818 io->scsiio.be_move_done = ctl_datamove_remote_dm_write_cb; 12819 12820 fe_datamove = ctl_io_port(&io->io_hdr)->fe_datamove; 12821 fe_datamove(io); 12822} 12823 12824static int 12825ctl_datamove_remote_dm_read_cb(union ctl_io *io) 12826{ 12827#if 0 12828 char str[256]; 12829 char path_str[64]; 12830 struct sbuf sb; 12831#endif 12832 uint32_t i; 12833 12834 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 12835 free(io->io_hdr.local_sglist[i].addr, M_CTL); 12836 free(io->io_hdr.remote_sglist, M_CTL); 12837 io->io_hdr.remote_sglist = NULL; 12838 io->io_hdr.local_sglist = NULL; 12839 12840#if 0 12841 scsi_path_string(io, path_str, sizeof(path_str)); 12842 sbuf_new(&sb, str, sizeof(str), SBUF_FIXEDLEN); 12843 sbuf_cat(&sb, path_str); 12844 scsi_command_string(&io->scsiio, NULL, &sb); 12845 sbuf_printf(&sb, "\n"); 12846 sbuf_cat(&sb, path_str); 12847 sbuf_printf(&sb, "Tag: 0x%04x, type %d\n", 12848 io->scsiio.tag_num, io->scsiio.tag_type); 12849 sbuf_cat(&sb, path_str); 12850 sbuf_printf(&sb, "%s: flags %#x, status %#x\n", __func__, 12851 io->io_hdr.flags, io->io_hdr.status); 12852 sbuf_finish(&sb); 12853 printk("%s", sbuf_data(&sb)); 12854#endif 12855 12856 12857 /* 12858 * The read is done, now we need to send status (good or bad) back 12859 * to the other side. 12860 */ 12861 ctl_send_datamove_done(io, /*have_lock*/ 0); 12862 12863 return (0); 12864} 12865 12866static void 12867ctl_datamove_remote_read_cb(struct ctl_ha_dt_req *rq) 12868{ 12869 union ctl_io *io; 12870 void (*fe_datamove)(union ctl_io *io); 12871 12872 io = rq->context; 12873 12874 if (rq->ret != CTL_HA_STATUS_SUCCESS) { 12875 printf("%s: ISC DMA read failed with error %d\n", __func__, 12876 rq->ret); 12877 ctl_set_internal_failure(&io->scsiio, 12878 /*sks_valid*/ 1, 12879 /*retry_count*/ rq->ret); 12880 } 12881 12882 ctl_dt_req_free(rq); 12883 12884 /* Switch the pointer over so the FETD knows what to do */ 12885 io->scsiio.kern_data_ptr = (uint8_t *)io->io_hdr.local_sglist; 12886 12887 /* 12888 * Use a custom move done callback, since we need to send completion 12889 * back to the other controller, not to the backend on this side. 12890 */ 12891 io->scsiio.be_move_done = ctl_datamove_remote_dm_read_cb; 12892 12893 /* XXX KDM add checks like the ones in ctl_datamove? */ 12894 12895 fe_datamove = ctl_io_port(&io->io_hdr)->fe_datamove; 12896 fe_datamove(io); 12897} 12898 12899static int 12900ctl_datamove_remote_sgl_setup(union ctl_io *io) 12901{ 12902 struct ctl_sg_entry *local_sglist; 12903 uint32_t len_to_go; 12904 int retval; 12905 int i; 12906 12907 retval = 0; 12908 local_sglist = io->io_hdr.local_sglist; 12909 len_to_go = io->scsiio.kern_data_len; 12910 12911 /* 12912 * The difficult thing here is that the size of the various 12913 * S/G segments may be different than the size from the 12914 * remote controller. That'll make it harder when DMAing 12915 * the data back to the other side. 12916 */ 12917 for (i = 0; len_to_go > 0; i++) { 12918 local_sglist[i].len = MIN(len_to_go, CTL_HA_DATAMOVE_SEGMENT); 12919 local_sglist[i].addr = 12920 malloc(local_sglist[i].len, M_CTL, M_WAITOK); 12921 12922 len_to_go -= local_sglist[i].len; 12923 } 12924 /* 12925 * Reset the number of S/G entries accordingly. The original 12926 * number of S/G entries is available in rem_sg_entries. 12927 */ 12928 io->scsiio.kern_sg_entries = i; 12929 12930#if 0 12931 printf("%s: kern_sg_entries = %d\n", __func__, 12932 io->scsiio.kern_sg_entries); 12933 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 12934 printf("%s: sg[%d] = %p, %lu\n", __func__, i, 12935 local_sglist[i].addr, local_sglist[i].len); 12936#endif 12937 12938 return (retval); 12939} 12940 12941static int 12942ctl_datamove_remote_xfer(union ctl_io *io, unsigned command, 12943 ctl_ha_dt_cb callback) 12944{ 12945 struct ctl_ha_dt_req *rq; 12946 struct ctl_sg_entry *remote_sglist, *local_sglist; 12947 uint32_t local_used, remote_used, total_used; 12948 int i, j, isc_ret; 12949 12950 rq = ctl_dt_req_alloc(); 12951 12952 /* 12953 * If we failed to allocate the request, and if the DMA didn't fail 12954 * anyway, set busy status. This is just a resource allocation 12955 * failure. 12956 */ 12957 if ((rq == NULL) 12958 && ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE && 12959 (io->io_hdr.status & CTL_STATUS_MASK) != CTL_SUCCESS)) 12960 ctl_set_busy(&io->scsiio); 12961 12962 if ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE && 12963 (io->io_hdr.status & CTL_STATUS_MASK) != CTL_SUCCESS) { 12964 12965 if (rq != NULL) 12966 ctl_dt_req_free(rq); 12967 12968 /* 12969 * The data move failed. We need to return status back 12970 * to the other controller. No point in trying to DMA 12971 * data to the remote controller. 12972 */ 12973 12974 ctl_send_datamove_done(io, /*have_lock*/ 0); 12975 12976 return (1); 12977 } 12978 12979 local_sglist = io->io_hdr.local_sglist; 12980 remote_sglist = io->io_hdr.remote_sglist; 12981 local_used = 0; 12982 remote_used = 0; 12983 total_used = 0; 12984 12985 /* 12986 * Pull/push the data over the wire from/to the other controller. 12987 * This takes into account the possibility that the local and 12988 * remote sglists may not be identical in terms of the size of 12989 * the elements and the number of elements. 12990 * 12991 * One fundamental assumption here is that the length allocated for 12992 * both the local and remote sglists is identical. Otherwise, we've 12993 * essentially got a coding error of some sort. 12994 */ 12995 isc_ret = CTL_HA_STATUS_SUCCESS; 12996 for (i = 0, j = 0; total_used < io->scsiio.kern_data_len; ) { 12997 uint32_t cur_len; 12998 uint8_t *tmp_ptr; 12999 13000 rq->command = command; 13001 rq->context = io; 13002 13003 /* 13004 * Both pointers should be aligned. But it is possible 13005 * that the allocation length is not. They should both 13006 * also have enough slack left over at the end, though, 13007 * to round up to the next 8 byte boundary. 13008 */ 13009 cur_len = MIN(local_sglist[i].len - local_used, 13010 remote_sglist[j].len - remote_used); 13011 rq->size = cur_len; 13012 13013 tmp_ptr = (uint8_t *)local_sglist[i].addr; 13014 tmp_ptr += local_used; 13015 13016#if 0 13017 /* Use physical addresses when talking to ISC hardware */ 13018 if ((io->io_hdr.flags & CTL_FLAG_BUS_ADDR) == 0) { 13019 /* XXX KDM use busdma */ 13020 rq->local = vtophys(tmp_ptr); 13021 } else 13022 rq->local = tmp_ptr; 13023#else 13024 KASSERT((io->io_hdr.flags & CTL_FLAG_BUS_ADDR) == 0, 13025 ("HA does not support BUS_ADDR")); 13026 rq->local = tmp_ptr; 13027#endif 13028 13029 tmp_ptr = (uint8_t *)remote_sglist[j].addr; 13030 tmp_ptr += remote_used; 13031 rq->remote = tmp_ptr; 13032 13033 rq->callback = NULL; 13034 13035 local_used += cur_len; 13036 if (local_used >= local_sglist[i].len) { 13037 i++; 13038 local_used = 0; 13039 } 13040 13041 remote_used += cur_len; 13042 if (remote_used >= remote_sglist[j].len) { 13043 j++; 13044 remote_used = 0; 13045 } 13046 total_used += cur_len; 13047 13048 if (total_used >= io->scsiio.kern_data_len) 13049 rq->callback = callback; 13050 13051#if 0 13052 printf("%s: %s: local %p remote %p size %d\n", __func__, 13053 (command == CTL_HA_DT_CMD_WRITE) ? "WRITE" : "READ", 13054 rq->local, rq->remote, rq->size); 13055#endif 13056 13057 isc_ret = ctl_dt_single(rq); 13058 if (isc_ret > CTL_HA_STATUS_SUCCESS) 13059 break; 13060 } 13061 if (isc_ret != CTL_HA_STATUS_WAIT) { 13062 rq->ret = isc_ret; 13063 callback(rq); 13064 } 13065 13066 return (0); 13067} 13068 13069static void 13070ctl_datamove_remote_read(union ctl_io *io) 13071{ 13072 int retval; 13073 uint32_t i; 13074 13075 /* 13076 * This will send an error to the other controller in the case of a 13077 * failure. 13078 */ 13079 retval = ctl_datamove_remote_sgl_setup(io); 13080 if (retval != 0) 13081 return; 13082 13083 retval = ctl_datamove_remote_xfer(io, CTL_HA_DT_CMD_READ, 13084 ctl_datamove_remote_read_cb); 13085 if (retval != 0) { 13086 /* 13087 * Make sure we free memory if there was an error.. The 13088 * ctl_datamove_remote_xfer() function will send the 13089 * datamove done message, or call the callback with an 13090 * error if there is a problem. 13091 */ 13092 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 13093 free(io->io_hdr.local_sglist[i].addr, M_CTL); 13094 free(io->io_hdr.remote_sglist, M_CTL); 13095 io->io_hdr.remote_sglist = NULL; 13096 io->io_hdr.local_sglist = NULL; 13097 } 13098} 13099 13100/* 13101 * Process a datamove request from the other controller. This is used for 13102 * XFER mode only, not SER_ONLY mode. For writes, we DMA into local memory 13103 * first. Once that is complete, the data gets DMAed into the remote 13104 * controller's memory. For reads, we DMA from the remote controller's 13105 * memory into our memory first, and then move it out to the FETD. 13106 */ 13107static void 13108ctl_datamove_remote(union ctl_io *io) 13109{ 13110 13111 mtx_assert(&control_softc->ctl_lock, MA_NOTOWNED); 13112 13113 if (io->io_hdr.flags & CTL_FLAG_FAILOVER) { 13114 ctl_failover_io(io, /*have_lock*/ 0); 13115 return; 13116 } 13117 13118 /* 13119 * Note that we look for an aborted I/O here, but don't do some of 13120 * the other checks that ctl_datamove() normally does. 13121 * We don't need to run the datamove delay code, since that should 13122 * have been done if need be on the other controller. 13123 */ 13124 if (io->io_hdr.flags & CTL_FLAG_ABORT) { 13125 printf("%s: tag 0x%04x on (%u:%u:%u) aborted\n", __func__, 13126 io->scsiio.tag_num, io->io_hdr.nexus.initid, 13127 io->io_hdr.nexus.targ_port, 13128 io->io_hdr.nexus.targ_lun); 13129 io->io_hdr.port_status = 31338; 13130 ctl_send_datamove_done(io, /*have_lock*/ 0); 13131 return; 13132 } 13133 13134 if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_OUT) 13135 ctl_datamove_remote_write(io); 13136 else if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_IN) 13137 ctl_datamove_remote_read(io); 13138 else { 13139 io->io_hdr.port_status = 31339; 13140 ctl_send_datamove_done(io, /*have_lock*/ 0); 13141 } 13142} 13143 13144static void 13145ctl_process_done(union ctl_io *io) 13146{ 13147 struct ctl_lun *lun; 13148 struct ctl_softc *softc = control_softc; 13149 void (*fe_done)(union ctl_io *io); 13150 union ctl_ha_msg msg; 13151 uint32_t targ_port = io->io_hdr.nexus.targ_port; 13152 13153 CTL_DEBUG_PRINT(("ctl_process_done\n")); 13154 fe_done = softc->ctl_ports[targ_port]->fe_done; 13155 13156#ifdef CTL_TIME_IO 13157 if ((time_uptime - io->io_hdr.start_time) > ctl_time_io_secs) { 13158 char str[256]; 13159 char path_str[64]; 13160 struct sbuf sb; 13161 13162 ctl_scsi_path_string(io, path_str, sizeof(path_str)); 13163 sbuf_new(&sb, str, sizeof(str), SBUF_FIXEDLEN); 13164 13165 sbuf_cat(&sb, path_str); 13166 switch (io->io_hdr.io_type) { 13167 case CTL_IO_SCSI: 13168 ctl_scsi_command_string(&io->scsiio, NULL, &sb); 13169 sbuf_printf(&sb, "\n"); 13170 sbuf_cat(&sb, path_str); 13171 sbuf_printf(&sb, "Tag: 0x%04x, type %d\n", 13172 io->scsiio.tag_num, io->scsiio.tag_type); 13173 break; 13174 case CTL_IO_TASK: 13175 sbuf_printf(&sb, "Task I/O type: %d, Tag: 0x%04x, " 13176 "Tag Type: %d\n", io->taskio.task_action, 13177 io->taskio.tag_num, io->taskio.tag_type); 13178 break; 13179 default: 13180 panic("%s: Invalid CTL I/O type %d\n", 13181 __func__, io->io_hdr.io_type); 13182 } 13183 sbuf_cat(&sb, path_str); 13184 sbuf_printf(&sb, "ctl_process_done: %jd seconds\n", 13185 (intmax_t)time_uptime - io->io_hdr.start_time); 13186 sbuf_finish(&sb); 13187 printf("%s", sbuf_data(&sb)); 13188 } 13189#endif /* CTL_TIME_IO */ 13190 13191 switch (io->io_hdr.io_type) { 13192 case CTL_IO_SCSI: 13193 break; 13194 case CTL_IO_TASK: 13195 if (ctl_debug & CTL_DEBUG_INFO) 13196 ctl_io_error_print(io, NULL); 13197 fe_done(io); 13198 return; 13199 default: 13200 panic("%s: Invalid CTL I/O type %d\n", 13201 __func__, io->io_hdr.io_type); 13202 } 13203 13204 lun = (struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 13205 if (lun == NULL) { 13206 CTL_DEBUG_PRINT(("NULL LUN for lun %d\n", 13207 io->io_hdr.nexus.targ_mapped_lun)); 13208 goto bailout; 13209 } 13210 13211 mtx_lock(&lun->lun_lock); 13212 13213 /* 13214 * Check to see if we have any informational exception and status 13215 * of this command can be modified to report it in form of either 13216 * RECOVERED ERROR or NO SENSE, depending on MRIE mode page field. 13217 */ 13218 if (lun->ie_reported == 0 && lun->ie_asc != 0 && 13219 io->io_hdr.status == CTL_SUCCESS && 13220 (io->io_hdr.flags & CTL_FLAG_STATUS_SENT) == 0) { 13221 uint8_t mrie = lun->MODE_IE.mrie; 13222 uint8_t per = ((lun->MODE_RWER.byte3 & SMS_RWER_PER) || 13223 (lun->MODE_VER.byte3 & SMS_VER_PER)); 13224 if (((mrie == SIEP_MRIE_REC_COND && per) || 13225 mrie == SIEP_MRIE_REC_UNCOND || 13226 mrie == SIEP_MRIE_NO_SENSE) && 13227 (ctl_get_cmd_entry(&io->scsiio, NULL)->flags & 13228 CTL_CMD_FLAG_NO_SENSE) == 0) { 13229 ctl_set_sense(&io->scsiio, 13230 /*current_error*/ 1, 13231 /*sense_key*/ (mrie == SIEP_MRIE_NO_SENSE) ? 13232 SSD_KEY_NO_SENSE : SSD_KEY_RECOVERED_ERROR, 13233 /*asc*/ lun->ie_asc, 13234 /*ascq*/ lun->ie_ascq, 13235 SSD_ELEM_NONE); 13236 lun->ie_reported = 1; 13237 } 13238 } else if (lun->ie_reported < 0) 13239 lun->ie_reported = 0; 13240 13241 /* 13242 * Check to see if we have any errors to inject here. We only 13243 * inject errors for commands that don't already have errors set. 13244 */ 13245 if (!STAILQ_EMPTY(&lun->error_list) && 13246 ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS) && 13247 ((io->io_hdr.flags & CTL_FLAG_STATUS_SENT) == 0)) 13248 ctl_inject_error(lun, io); 13249 13250 /* 13251 * XXX KDM how do we treat commands that aren't completed 13252 * successfully? 13253 * 13254 * XXX KDM should we also track I/O latency? 13255 */ 13256 if ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS && 13257 io->io_hdr.io_type == CTL_IO_SCSI) { 13258#ifdef CTL_TIME_IO 13259 struct bintime cur_bt; 13260#endif 13261 int type; 13262 13263 if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == 13264 CTL_FLAG_DATA_IN) 13265 type = CTL_STATS_READ; 13266 else if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == 13267 CTL_FLAG_DATA_OUT) 13268 type = CTL_STATS_WRITE; 13269 else 13270 type = CTL_STATS_NO_IO; 13271 13272 lun->stats.ports[targ_port].bytes[type] += 13273 io->scsiio.kern_total_len; 13274 lun->stats.ports[targ_port].operations[type]++; 13275#ifdef CTL_TIME_IO 13276 bintime_add(&lun->stats.ports[targ_port].dma_time[type], 13277 &io->io_hdr.dma_bt); 13278 getbinuptime(&cur_bt); 13279 bintime_sub(&cur_bt, &io->io_hdr.start_bt); 13280 bintime_add(&lun->stats.ports[targ_port].time[type], &cur_bt); 13281#endif 13282 lun->stats.ports[targ_port].num_dmas[type] += 13283 io->io_hdr.num_dmas; 13284 } 13285 13286 /* 13287 * Remove this from the OOA queue. 13288 */ 13289 TAILQ_REMOVE(&lun->ooa_queue, &io->io_hdr, ooa_links); 13290#ifdef CTL_TIME_IO 13291 if (TAILQ_EMPTY(&lun->ooa_queue)) 13292 lun->last_busy = getsbinuptime(); 13293#endif 13294 13295 /* 13296 * Run through the blocked queue on this LUN and see if anything 13297 * has become unblocked, now that this transaction is done. 13298 */ 13299 ctl_check_blocked(lun); 13300 13301 /* 13302 * If the LUN has been invalidated, free it if there is nothing 13303 * left on its OOA queue. 13304 */ 13305 if ((lun->flags & CTL_LUN_INVALID) 13306 && TAILQ_EMPTY(&lun->ooa_queue)) { 13307 mtx_unlock(&lun->lun_lock); 13308 mtx_lock(&softc->ctl_lock); 13309 ctl_free_lun(lun); 13310 mtx_unlock(&softc->ctl_lock); 13311 } else 13312 mtx_unlock(&lun->lun_lock); 13313 13314bailout: 13315 13316 /* 13317 * If this command has been aborted, make sure we set the status 13318 * properly. The FETD is responsible for freeing the I/O and doing 13319 * whatever it needs to do to clean up its state. 13320 */ 13321 if (io->io_hdr.flags & CTL_FLAG_ABORT) 13322 ctl_set_task_aborted(&io->scsiio); 13323 13324 /* 13325 * If enabled, print command error status. 13326 */ 13327 if ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_SUCCESS && 13328 (ctl_debug & CTL_DEBUG_INFO) != 0) 13329 ctl_io_error_print(io, NULL); 13330 13331 /* 13332 * Tell the FETD or the other shelf controller we're done with this 13333 * command. Note that only SCSI commands get to this point. Task 13334 * management commands are completed above. 13335 */ 13336 if ((softc->ha_mode != CTL_HA_MODE_XFER) && 13337 (io->io_hdr.flags & CTL_FLAG_SENT_2OTHER_SC)) { 13338 memset(&msg, 0, sizeof(msg)); 13339 msg.hdr.msg_type = CTL_MSG_FINISH_IO; 13340 msg.hdr.serializing_sc = io->io_hdr.serializing_sc; 13341 msg.hdr.nexus = io->io_hdr.nexus; 13342 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, 13343 sizeof(msg.scsi) - sizeof(msg.scsi.sense_data), 13344 M_WAITOK); 13345 } 13346 13347 fe_done(io); 13348} 13349 13350#ifdef CTL_WITH_CA 13351/* 13352 * Front end should call this if it doesn't do autosense. When the request 13353 * sense comes back in from the initiator, we'll dequeue this and send it. 13354 */ 13355int 13356ctl_queue_sense(union ctl_io *io) 13357{ 13358 struct ctl_lun *lun; 13359 struct ctl_port *port; 13360 struct ctl_softc *softc; 13361 uint32_t initidx, targ_lun; 13362 13363 softc = control_softc; 13364 13365 CTL_DEBUG_PRINT(("ctl_queue_sense\n")); 13366 13367 /* 13368 * LUN lookup will likely move to the ctl_work_thread() once we 13369 * have our new queueing infrastructure (that doesn't put things on 13370 * a per-LUN queue initially). That is so that we can handle 13371 * things like an INQUIRY to a LUN that we don't have enabled. We 13372 * can't deal with that right now. 13373 */ 13374 mtx_lock(&softc->ctl_lock); 13375 13376 /* 13377 * If we don't have a LUN for this, just toss the sense 13378 * information. 13379 */ 13380 port = ctl_io_port(&ctsio->io_hdr); 13381 targ_lun = ctl_lun_map_from_port(port, io->io_hdr.nexus.targ_lun); 13382 if ((targ_lun < CTL_MAX_LUNS) 13383 && (softc->ctl_luns[targ_lun] != NULL)) 13384 lun = softc->ctl_luns[targ_lun]; 13385 else 13386 goto bailout; 13387 13388 initidx = ctl_get_initindex(&io->io_hdr.nexus); 13389 13390 mtx_lock(&lun->lun_lock); 13391 /* 13392 * Already have CA set for this LUN...toss the sense information. 13393 */ 13394 if (ctl_is_set(lun->have_ca, initidx)) { 13395 mtx_unlock(&lun->lun_lock); 13396 goto bailout; 13397 } 13398 13399 memcpy(&lun->pending_sense[initidx], &io->scsiio.sense_data, 13400 MIN(sizeof(lun->pending_sense[initidx]), 13401 sizeof(io->scsiio.sense_data))); 13402 ctl_set_mask(lun->have_ca, initidx); 13403 mtx_unlock(&lun->lun_lock); 13404 13405bailout: 13406 mtx_unlock(&softc->ctl_lock); 13407 13408 ctl_free_io(io); 13409 13410 return (CTL_RETVAL_COMPLETE); 13411} 13412#endif 13413 13414/* 13415 * Primary command inlet from frontend ports. All SCSI and task I/O 13416 * requests must go through this function. 13417 */ 13418int 13419ctl_queue(union ctl_io *io) 13420{ 13421 struct ctl_port *port; 13422 13423 CTL_DEBUG_PRINT(("ctl_queue cdb[0]=%02X\n", io->scsiio.cdb[0])); 13424 13425#ifdef CTL_TIME_IO 13426 io->io_hdr.start_time = time_uptime; 13427 getbinuptime(&io->io_hdr.start_bt); 13428#endif /* CTL_TIME_IO */ 13429 13430 /* Map FE-specific LUN ID into global one. */ 13431 port = ctl_io_port(&io->io_hdr); 13432 io->io_hdr.nexus.targ_mapped_lun = 13433 ctl_lun_map_from_port(port, io->io_hdr.nexus.targ_lun); 13434 13435 switch (io->io_hdr.io_type) { 13436 case CTL_IO_SCSI: 13437 case CTL_IO_TASK: 13438 if (ctl_debug & CTL_DEBUG_CDB) 13439 ctl_io_print(io); 13440 ctl_enqueue_incoming(io); 13441 break; 13442 default: 13443 printf("ctl_queue: unknown I/O type %d\n", io->io_hdr.io_type); 13444 return (EINVAL); 13445 } 13446 13447 return (CTL_RETVAL_COMPLETE); 13448} 13449 13450#ifdef CTL_IO_DELAY 13451static void 13452ctl_done_timer_wakeup(void *arg) 13453{ 13454 union ctl_io *io; 13455 13456 io = (union ctl_io *)arg; 13457 ctl_done(io); 13458} 13459#endif /* CTL_IO_DELAY */ 13460 13461void 13462ctl_serseq_done(union ctl_io *io) 13463{ 13464 struct ctl_lun *lun; 13465 13466 lun = (struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 13467 if (lun->be_lun == NULL || 13468 lun->be_lun->serseq == CTL_LUN_SERSEQ_OFF) 13469 return; 13470 mtx_lock(&lun->lun_lock); 13471 io->io_hdr.flags |= CTL_FLAG_SERSEQ_DONE; 13472 ctl_check_blocked(lun); 13473 mtx_unlock(&lun->lun_lock); 13474} 13475 13476void 13477ctl_done(union ctl_io *io) 13478{ 13479 13480 /* 13481 * Enable this to catch duplicate completion issues. 13482 */ 13483#if 0 13484 if (io->io_hdr.flags & CTL_FLAG_ALREADY_DONE) { 13485 printf("%s: type %d msg %d cdb %x iptl: " 13486 "%u:%u:%u tag 0x%04x " 13487 "flag %#x status %x\n", 13488 __func__, 13489 io->io_hdr.io_type, 13490 io->io_hdr.msg_type, 13491 io->scsiio.cdb[0], 13492 io->io_hdr.nexus.initid, 13493 io->io_hdr.nexus.targ_port, 13494 io->io_hdr.nexus.targ_lun, 13495 (io->io_hdr.io_type == 13496 CTL_IO_TASK) ? 13497 io->taskio.tag_num : 13498 io->scsiio.tag_num, 13499 io->io_hdr.flags, 13500 io->io_hdr.status); 13501 } else 13502 io->io_hdr.flags |= CTL_FLAG_ALREADY_DONE; 13503#endif 13504 13505 /* 13506 * This is an internal copy of an I/O, and should not go through 13507 * the normal done processing logic. 13508 */ 13509 if (io->io_hdr.flags & CTL_FLAG_INT_COPY) 13510 return; 13511 13512#ifdef CTL_IO_DELAY 13513 if (io->io_hdr.flags & CTL_FLAG_DELAY_DONE) { 13514 io->io_hdr.flags &= ~CTL_FLAG_DELAY_DONE; 13515 } else { 13516 struct ctl_lun *lun; 13517 13518 lun =(struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 13519 13520 if ((lun != NULL) 13521 && (lun->delay_info.done_delay > 0)) { 13522 13523 callout_init(&io->io_hdr.delay_callout, /*mpsafe*/ 1); 13524 io->io_hdr.flags |= CTL_FLAG_DELAY_DONE; 13525 callout_reset(&io->io_hdr.delay_callout, 13526 lun->delay_info.done_delay * hz, 13527 ctl_done_timer_wakeup, io); 13528 if (lun->delay_info.done_type == CTL_DELAY_TYPE_ONESHOT) 13529 lun->delay_info.done_delay = 0; 13530 return; 13531 } 13532 } 13533#endif /* CTL_IO_DELAY */ 13534 13535 ctl_enqueue_done(io); 13536} 13537 13538static void 13539ctl_work_thread(void *arg) 13540{ 13541 struct ctl_thread *thr = (struct ctl_thread *)arg; 13542 struct ctl_softc *softc = thr->ctl_softc; 13543 union ctl_io *io; 13544 int retval; 13545 13546 CTL_DEBUG_PRINT(("ctl_work_thread starting\n")); 13547 13548 for (;;) { 13549 /* 13550 * We handle the queues in this order: 13551 * - ISC 13552 * - done queue (to free up resources, unblock other commands) 13553 * - RtR queue 13554 * - incoming queue 13555 * 13556 * If those queues are empty, we break out of the loop and 13557 * go to sleep. 13558 */ 13559 mtx_lock(&thr->queue_lock); 13560 io = (union ctl_io *)STAILQ_FIRST(&thr->isc_queue); 13561 if (io != NULL) { 13562 STAILQ_REMOVE_HEAD(&thr->isc_queue, links); 13563 mtx_unlock(&thr->queue_lock); 13564 ctl_handle_isc(io); 13565 continue; 13566 } 13567 io = (union ctl_io *)STAILQ_FIRST(&thr->done_queue); 13568 if (io != NULL) { 13569 STAILQ_REMOVE_HEAD(&thr->done_queue, links); 13570 /* clear any blocked commands, call fe_done */ 13571 mtx_unlock(&thr->queue_lock); 13572 ctl_process_done(io); 13573 continue; 13574 } 13575 io = (union ctl_io *)STAILQ_FIRST(&thr->incoming_queue); 13576 if (io != NULL) { 13577 STAILQ_REMOVE_HEAD(&thr->incoming_queue, links); 13578 mtx_unlock(&thr->queue_lock); 13579 if (io->io_hdr.io_type == CTL_IO_TASK) 13580 ctl_run_task(io); 13581 else 13582 ctl_scsiio_precheck(softc, &io->scsiio); 13583 continue; 13584 } 13585 io = (union ctl_io *)STAILQ_FIRST(&thr->rtr_queue); 13586 if (io != NULL) { 13587 STAILQ_REMOVE_HEAD(&thr->rtr_queue, links); 13588 mtx_unlock(&thr->queue_lock); 13589 retval = ctl_scsiio(&io->scsiio); 13590 if (retval != CTL_RETVAL_COMPLETE) 13591 CTL_DEBUG_PRINT(("ctl_scsiio failed\n")); 13592 continue; 13593 } 13594 13595 /* Sleep until we have something to do. */ 13596 mtx_sleep(thr, &thr->queue_lock, PDROP | PRIBIO, "-", 0); 13597 } 13598} 13599 13600static void 13601ctl_lun_thread(void *arg) 13602{ 13603 struct ctl_softc *softc = (struct ctl_softc *)arg; 13604 struct ctl_be_lun *be_lun; 13605 13606 CTL_DEBUG_PRINT(("ctl_lun_thread starting\n")); 13607 13608 for (;;) { 13609 mtx_lock(&softc->ctl_lock); 13610 be_lun = STAILQ_FIRST(&softc->pending_lun_queue); 13611 if (be_lun != NULL) { 13612 STAILQ_REMOVE_HEAD(&softc->pending_lun_queue, links); 13613 mtx_unlock(&softc->ctl_lock); 13614 ctl_create_lun(be_lun); 13615 continue; 13616 } 13617 13618 /* Sleep until we have something to do. */ 13619 mtx_sleep(&softc->pending_lun_queue, &softc->ctl_lock, 13620 PDROP | PRIBIO, "-", 0); 13621 } 13622} 13623 13624static void 13625ctl_thresh_thread(void *arg) 13626{ 13627 struct ctl_softc *softc = (struct ctl_softc *)arg; 13628 struct ctl_lun *lun; 13629 struct ctl_logical_block_provisioning_page *page; 13630 const char *attr; 13631 union ctl_ha_msg msg; 13632 uint64_t thres, val; 13633 int i, e, set; 13634 13635 CTL_DEBUG_PRINT(("ctl_thresh_thread starting\n")); 13636 13637 for (;;) { 13638 mtx_lock(&softc->ctl_lock); 13639 STAILQ_FOREACH(lun, &softc->lun_list, links) { 13640 if ((lun->flags & CTL_LUN_DISABLED) || 13641 (lun->flags & CTL_LUN_NO_MEDIA) || 13642 lun->backend->lun_attr == NULL) 13643 continue; 13644 if ((lun->flags & CTL_LUN_PRIMARY_SC) == 0 && 13645 softc->ha_mode == CTL_HA_MODE_XFER) 13646 continue; 13647 if ((lun->MODE_RWER.byte8 & SMS_RWER_LBPERE) == 0) 13648 continue; 13649 e = 0; 13650 page = &lun->MODE_LBP; 13651 for (i = 0; i < CTL_NUM_LBP_THRESH; i++) { 13652 if ((page->descr[i].flags & SLBPPD_ENABLED) == 0) 13653 continue; 13654 thres = scsi_4btoul(page->descr[i].count); 13655 thres <<= CTL_LBP_EXPONENT; 13656 switch (page->descr[i].resource) { 13657 case 0x01: 13658 attr = "blocksavail"; 13659 break; 13660 case 0x02: 13661 attr = "blocksused"; 13662 break; 13663 case 0xf1: 13664 attr = "poolblocksavail"; 13665 break; 13666 case 0xf2: 13667 attr = "poolblocksused"; 13668 break; 13669 default: 13670 continue; 13671 } 13672 mtx_unlock(&softc->ctl_lock); // XXX 13673 val = lun->backend->lun_attr( 13674 lun->be_lun->be_lun, attr); 13675 mtx_lock(&softc->ctl_lock); 13676 if (val == UINT64_MAX) 13677 continue; 13678 if ((page->descr[i].flags & SLBPPD_ARMING_MASK) 13679 == SLBPPD_ARMING_INC) 13680 e = (val >= thres); 13681 else 13682 e = (val <= thres); 13683 if (e) 13684 break; 13685 } 13686 mtx_lock(&lun->lun_lock); 13687 if (e) { 13688 scsi_u64to8b((uint8_t *)&page->descr[i] - 13689 (uint8_t *)page, lun->ua_tpt_info); 13690 if (lun->lasttpt == 0 || 13691 time_uptime - lun->lasttpt >= CTL_LBP_UA_PERIOD) { 13692 lun->lasttpt = time_uptime; 13693 ctl_est_ua_all(lun, -1, CTL_UA_THIN_PROV_THRES); 13694 set = 1; 13695 } else 13696 set = 0; 13697 } else { 13698 lun->lasttpt = 0; 13699 ctl_clr_ua_all(lun, -1, CTL_UA_THIN_PROV_THRES); 13700 set = -1; 13701 } 13702 mtx_unlock(&lun->lun_lock); 13703 if (set != 0 && 13704 lun->ctl_softc->ha_mode == CTL_HA_MODE_XFER) { 13705 /* Send msg to other side. */ 13706 bzero(&msg.ua, sizeof(msg.ua)); 13707 msg.hdr.msg_type = CTL_MSG_UA; 13708 msg.hdr.nexus.initid = -1; 13709 msg.hdr.nexus.targ_port = -1; 13710 msg.hdr.nexus.targ_lun = lun->lun; 13711 msg.hdr.nexus.targ_mapped_lun = lun->lun; 13712 msg.ua.ua_all = 1; 13713 msg.ua.ua_set = (set > 0); 13714 msg.ua.ua_type = CTL_UA_THIN_PROV_THRES; 13715 memcpy(msg.ua.ua_info, lun->ua_tpt_info, 8); 13716 mtx_unlock(&softc->ctl_lock); // XXX 13717 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, 13718 sizeof(msg.ua), M_WAITOK); 13719 mtx_lock(&softc->ctl_lock); 13720 } 13721 } 13722 mtx_unlock(&softc->ctl_lock); 13723 pause("-", CTL_LBP_PERIOD * hz); 13724 } 13725} 13726 13727static void 13728ctl_enqueue_incoming(union ctl_io *io) 13729{ 13730 struct ctl_softc *softc = control_softc; 13731 struct ctl_thread *thr; 13732 u_int idx; 13733 13734 idx = (io->io_hdr.nexus.targ_port * 127 + 13735 io->io_hdr.nexus.initid) % worker_threads; 13736 thr = &softc->threads[idx]; 13737 mtx_lock(&thr->queue_lock); 13738 STAILQ_INSERT_TAIL(&thr->incoming_queue, &io->io_hdr, links); 13739 mtx_unlock(&thr->queue_lock); 13740 wakeup(thr); 13741} 13742 13743static void 13744ctl_enqueue_rtr(union ctl_io *io) 13745{ 13746 struct ctl_softc *softc = control_softc; 13747 struct ctl_thread *thr; 13748 13749 thr = &softc->threads[io->io_hdr.nexus.targ_mapped_lun % worker_threads]; 13750 mtx_lock(&thr->queue_lock); 13751 STAILQ_INSERT_TAIL(&thr->rtr_queue, &io->io_hdr, links); 13752 mtx_unlock(&thr->queue_lock); 13753 wakeup(thr); 13754} 13755 13756static void 13757ctl_enqueue_done(union ctl_io *io) 13758{ 13759 struct ctl_softc *softc = control_softc; 13760 struct ctl_thread *thr; 13761 13762 thr = &softc->threads[io->io_hdr.nexus.targ_mapped_lun % worker_threads]; 13763 mtx_lock(&thr->queue_lock); 13764 STAILQ_INSERT_TAIL(&thr->done_queue, &io->io_hdr, links); 13765 mtx_unlock(&thr->queue_lock); 13766 wakeup(thr); 13767} 13768 13769static void 13770ctl_enqueue_isc(union ctl_io *io) 13771{ 13772 struct ctl_softc *softc = control_softc; 13773 struct ctl_thread *thr; 13774 13775 thr = &softc->threads[io->io_hdr.nexus.targ_mapped_lun % worker_threads]; 13776 mtx_lock(&thr->queue_lock); 13777 STAILQ_INSERT_TAIL(&thr->isc_queue, &io->io_hdr, links); 13778 mtx_unlock(&thr->queue_lock); 13779 wakeup(thr); 13780} 13781 13782/* 13783 * vim: ts=8 13784 */ 13785