ctl.c revision 312572
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 312572 2017-01-21 08:31:20Z 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 void 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_unlock(&softc->ctl_lock); 1030 return; 1031 } 1032 mtx_lock(&lun->lun_lock); 1033 mtx_unlock(&softc->ctl_lock); 1034 if (msg->ua.ua_type == CTL_UA_THIN_PROV_THRES && msg->ua.ua_set) 1035 memcpy(lun->ua_tpt_info, msg->ua.ua_info, 8); 1036 if (msg->ua.ua_all) { 1037 if (msg->ua.ua_set) 1038 ctl_est_ua_all(lun, iid, msg->ua.ua_type); 1039 else 1040 ctl_clr_ua_all(lun, iid, msg->ua.ua_type); 1041 } else { 1042 if (msg->ua.ua_set) 1043 ctl_est_ua(lun, iid, msg->ua.ua_type); 1044 else 1045 ctl_clr_ua(lun, iid, msg->ua.ua_type); 1046 } 1047 mtx_unlock(&lun->lun_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 void 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 uint32_t targ_lun; 2205 2206 targ_lun = ctsio->io_hdr.nexus.targ_mapped_lun; 2207 mtx_lock(&softc->ctl_lock); 2208 2209 /* Make sure that we know about this port. */ 2210 port = ctl_io_port(&ctsio->io_hdr); 2211 if (port == NULL || (port->status & CTL_PORT_STATUS_ONLINE) == 0) { 2212 ctl_set_internal_failure(ctsio, /*sks_valid*/ 0, 2213 /*retry_count*/ 1); 2214 goto badjuju; 2215 } 2216 2217 /* Make sure that we know about this LUN. */ 2218 if (targ_lun >= CTL_MAX_LUNS || 2219 (lun = softc->ctl_luns[targ_lun]) == NULL) { 2220 mtx_unlock(&softc->ctl_lock); 2221 2222 /* 2223 * The other node would not send this request to us unless 2224 * received announce that we are primary node for this LUN. 2225 * If this LUN does not exist now, it is probably result of 2226 * a race, so respond to initiator in the most opaque way. 2227 */ 2228 ctl_set_busy(ctsio); 2229 goto badjuju; 2230 } 2231 mtx_lock(&lun->lun_lock); 2232 mtx_unlock(&softc->ctl_lock); 2233 2234 /* 2235 * If the LUN is invalid, pretend that it doesn't exist. 2236 * It will go away as soon as all pending I/Os completed. 2237 */ 2238 if (lun->flags & CTL_LUN_DISABLED) { 2239 mtx_unlock(&lun->lun_lock); 2240 ctl_set_busy(ctsio); 2241 goto badjuju; 2242 } 2243 2244 entry = ctl_get_cmd_entry(ctsio, NULL); 2245 if (ctl_scsiio_lun_check(lun, entry, ctsio) != 0) { 2246 mtx_unlock(&lun->lun_lock); 2247 goto badjuju; 2248 } 2249 2250 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr = lun; 2251 ctsio->io_hdr.ctl_private[CTL_PRIV_BACKEND_LUN].ptr = lun->be_lun; 2252 2253 /* 2254 * Every I/O goes into the OOA queue for a 2255 * particular LUN, and stays there until completion. 2256 */ 2257#ifdef CTL_TIME_IO 2258 if (TAILQ_EMPTY(&lun->ooa_queue)) 2259 lun->idle_time += getsbinuptime() - lun->last_busy; 2260#endif 2261 TAILQ_INSERT_TAIL(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 2262 2263 switch (ctl_check_ooa(lun, (union ctl_io *)ctsio, 2264 (union ctl_io *)TAILQ_PREV(&ctsio->io_hdr, ctl_ooaq, 2265 ooa_links))) { 2266 case CTL_ACTION_BLOCK: 2267 ctsio->io_hdr.flags |= CTL_FLAG_BLOCKED; 2268 TAILQ_INSERT_TAIL(&lun->blocked_queue, &ctsio->io_hdr, 2269 blocked_links); 2270 mtx_unlock(&lun->lun_lock); 2271 break; 2272 case CTL_ACTION_PASS: 2273 case CTL_ACTION_SKIP: 2274 if (softc->ha_mode == CTL_HA_MODE_XFER) { 2275 ctsio->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 2276 ctl_enqueue_rtr((union ctl_io *)ctsio); 2277 mtx_unlock(&lun->lun_lock); 2278 } else { 2279 ctsio->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 2280 mtx_unlock(&lun->lun_lock); 2281 2282 /* send msg back to other side */ 2283 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 2284 msg_info.hdr.serializing_sc = (union ctl_io *)ctsio; 2285 msg_info.hdr.msg_type = CTL_MSG_R2R; 2286 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 2287 sizeof(msg_info.hdr), M_WAITOK); 2288 } 2289 break; 2290 case CTL_ACTION_OVERLAP: 2291 TAILQ_REMOVE(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 2292 mtx_unlock(&lun->lun_lock); 2293 ctl_set_overlapped_cmd(ctsio); 2294 goto badjuju; 2295 case CTL_ACTION_OVERLAP_TAG: 2296 TAILQ_REMOVE(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 2297 mtx_unlock(&lun->lun_lock); 2298 ctl_set_overlapped_tag(ctsio, ctsio->tag_num); 2299 goto badjuju; 2300 case CTL_ACTION_ERROR: 2301 default: 2302 TAILQ_REMOVE(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 2303 mtx_unlock(&lun->lun_lock); 2304 2305 ctl_set_internal_failure(ctsio, /*sks_valid*/ 0, 2306 /*retry_count*/ 0); 2307badjuju: 2308 ctl_copy_sense_data_back((union ctl_io *)ctsio, &msg_info); 2309 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 2310 msg_info.hdr.serializing_sc = NULL; 2311 msg_info.hdr.msg_type = CTL_MSG_BAD_JUJU; 2312 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 2313 sizeof(msg_info.scsi), M_WAITOK); 2314 ctl_free_io((union ctl_io *)ctsio); 2315 break; 2316 } 2317} 2318 2319/* 2320 * Returns 0 for success, errno for failure. 2321 */ 2322static void 2323ctl_ioctl_fill_ooa(struct ctl_lun *lun, uint32_t *cur_fill_num, 2324 struct ctl_ooa *ooa_hdr, struct ctl_ooa_entry *kern_entries) 2325{ 2326 union ctl_io *io; 2327 2328 mtx_lock(&lun->lun_lock); 2329 for (io = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); (io != NULL); 2330 (*cur_fill_num)++, io = (union ctl_io *)TAILQ_NEXT(&io->io_hdr, 2331 ooa_links)) { 2332 struct ctl_ooa_entry *entry; 2333 2334 /* 2335 * If we've got more than we can fit, just count the 2336 * remaining entries. 2337 */ 2338 if (*cur_fill_num >= ooa_hdr->alloc_num) 2339 continue; 2340 2341 entry = &kern_entries[*cur_fill_num]; 2342 2343 entry->tag_num = io->scsiio.tag_num; 2344 entry->lun_num = lun->lun; 2345#ifdef CTL_TIME_IO 2346 entry->start_bt = io->io_hdr.start_bt; 2347#endif 2348 bcopy(io->scsiio.cdb, entry->cdb, io->scsiio.cdb_len); 2349 entry->cdb_len = io->scsiio.cdb_len; 2350 if (io->io_hdr.flags & CTL_FLAG_BLOCKED) 2351 entry->cmd_flags |= CTL_OOACMD_FLAG_BLOCKED; 2352 2353 if (io->io_hdr.flags & CTL_FLAG_DMA_INPROG) 2354 entry->cmd_flags |= CTL_OOACMD_FLAG_DMA; 2355 2356 if (io->io_hdr.flags & CTL_FLAG_ABORT) 2357 entry->cmd_flags |= CTL_OOACMD_FLAG_ABORT; 2358 2359 if (io->io_hdr.flags & CTL_FLAG_IS_WAS_ON_RTR) 2360 entry->cmd_flags |= CTL_OOACMD_FLAG_RTR; 2361 2362 if (io->io_hdr.flags & CTL_FLAG_DMA_QUEUED) 2363 entry->cmd_flags |= CTL_OOACMD_FLAG_DMA_QUEUED; 2364 } 2365 mtx_unlock(&lun->lun_lock); 2366} 2367 2368static void * 2369ctl_copyin_alloc(void *user_addr, unsigned int len, char *error_str, 2370 size_t error_str_len) 2371{ 2372 void *kptr; 2373 2374 kptr = malloc(len, M_CTL, M_WAITOK | M_ZERO); 2375 2376 if (copyin(user_addr, kptr, len) != 0) { 2377 snprintf(error_str, error_str_len, "Error copying %d bytes " 2378 "from user address %p to kernel address %p", len, 2379 user_addr, kptr); 2380 free(kptr, M_CTL); 2381 return (NULL); 2382 } 2383 2384 return (kptr); 2385} 2386 2387static void 2388ctl_free_args(int num_args, struct ctl_be_arg *args) 2389{ 2390 int i; 2391 2392 if (args == NULL) 2393 return; 2394 2395 for (i = 0; i < num_args; i++) { 2396 free(args[i].kname, M_CTL); 2397 free(args[i].kvalue, M_CTL); 2398 } 2399 2400 free(args, M_CTL); 2401} 2402 2403static struct ctl_be_arg * 2404ctl_copyin_args(int num_args, struct ctl_be_arg *uargs, 2405 char *error_str, size_t error_str_len) 2406{ 2407 struct ctl_be_arg *args; 2408 int i; 2409 2410 args = ctl_copyin_alloc(uargs, num_args * sizeof(*args), 2411 error_str, error_str_len); 2412 2413 if (args == NULL) 2414 goto bailout; 2415 2416 for (i = 0; i < num_args; i++) { 2417 args[i].kname = NULL; 2418 args[i].kvalue = NULL; 2419 } 2420 2421 for (i = 0; i < num_args; i++) { 2422 uint8_t *tmpptr; 2423 2424 if (args[i].namelen == 0) { 2425 snprintf(error_str, error_str_len, "Argument %d " 2426 "name length is zero", i); 2427 goto bailout; 2428 } 2429 2430 args[i].kname = ctl_copyin_alloc(args[i].name, 2431 args[i].namelen, error_str, error_str_len); 2432 if (args[i].kname == NULL) 2433 goto bailout; 2434 2435 if (args[i].kname[args[i].namelen - 1] != '\0') { 2436 snprintf(error_str, error_str_len, "Argument %d " 2437 "name is not NUL-terminated", i); 2438 goto bailout; 2439 } 2440 2441 if (args[i].flags & CTL_BEARG_RD) { 2442 if (args[i].vallen == 0) { 2443 snprintf(error_str, error_str_len, "Argument %d " 2444 "value length is zero", i); 2445 goto bailout; 2446 } 2447 2448 tmpptr = ctl_copyin_alloc(args[i].value, 2449 args[i].vallen, error_str, error_str_len); 2450 if (tmpptr == NULL) 2451 goto bailout; 2452 2453 if ((args[i].flags & CTL_BEARG_ASCII) 2454 && (tmpptr[args[i].vallen - 1] != '\0')) { 2455 snprintf(error_str, error_str_len, "Argument " 2456 "%d value is not NUL-terminated", i); 2457 free(tmpptr, M_CTL); 2458 goto bailout; 2459 } 2460 args[i].kvalue = tmpptr; 2461 } else { 2462 args[i].kvalue = malloc(args[i].vallen, 2463 M_CTL, M_WAITOK | M_ZERO); 2464 } 2465 } 2466 2467 return (args); 2468bailout: 2469 2470 ctl_free_args(num_args, args); 2471 2472 return (NULL); 2473} 2474 2475static void 2476ctl_copyout_args(int num_args, struct ctl_be_arg *args) 2477{ 2478 int i; 2479 2480 for (i = 0; i < num_args; i++) { 2481 if (args[i].flags & CTL_BEARG_WR) 2482 copyout(args[i].kvalue, args[i].value, args[i].vallen); 2483 } 2484} 2485 2486/* 2487 * Escape characters that are illegal or not recommended in XML. 2488 */ 2489int 2490ctl_sbuf_printf_esc(struct sbuf *sb, char *str, int size) 2491{ 2492 char *end = str + size; 2493 int retval; 2494 2495 retval = 0; 2496 2497 for (; *str && str < end; str++) { 2498 switch (*str) { 2499 case '&': 2500 retval = sbuf_printf(sb, "&"); 2501 break; 2502 case '>': 2503 retval = sbuf_printf(sb, ">"); 2504 break; 2505 case '<': 2506 retval = sbuf_printf(sb, "<"); 2507 break; 2508 default: 2509 retval = sbuf_putc(sb, *str); 2510 break; 2511 } 2512 2513 if (retval != 0) 2514 break; 2515 2516 } 2517 2518 return (retval); 2519} 2520 2521static void 2522ctl_id_sbuf(struct ctl_devid *id, struct sbuf *sb) 2523{ 2524 struct scsi_vpd_id_descriptor *desc; 2525 int i; 2526 2527 if (id == NULL || id->len < 4) 2528 return; 2529 desc = (struct scsi_vpd_id_descriptor *)id->data; 2530 switch (desc->id_type & SVPD_ID_TYPE_MASK) { 2531 case SVPD_ID_TYPE_T10: 2532 sbuf_printf(sb, "t10."); 2533 break; 2534 case SVPD_ID_TYPE_EUI64: 2535 sbuf_printf(sb, "eui."); 2536 break; 2537 case SVPD_ID_TYPE_NAA: 2538 sbuf_printf(sb, "naa."); 2539 break; 2540 case SVPD_ID_TYPE_SCSI_NAME: 2541 break; 2542 } 2543 switch (desc->proto_codeset & SVPD_ID_CODESET_MASK) { 2544 case SVPD_ID_CODESET_BINARY: 2545 for (i = 0; i < desc->length; i++) 2546 sbuf_printf(sb, "%02x", desc->identifier[i]); 2547 break; 2548 case SVPD_ID_CODESET_ASCII: 2549 sbuf_printf(sb, "%.*s", (int)desc->length, 2550 (char *)desc->identifier); 2551 break; 2552 case SVPD_ID_CODESET_UTF8: 2553 sbuf_printf(sb, "%s", (char *)desc->identifier); 2554 break; 2555 } 2556} 2557 2558static int 2559ctl_ioctl(struct cdev *dev, u_long cmd, caddr_t addr, int flag, 2560 struct thread *td) 2561{ 2562 struct ctl_softc *softc = dev->si_drv1; 2563 struct ctl_lun *lun; 2564 int retval; 2565 2566 retval = 0; 2567 2568 switch (cmd) { 2569 case CTL_IO: 2570 retval = ctl_ioctl_io(dev, cmd, addr, flag, td); 2571 break; 2572 case CTL_ENABLE_PORT: 2573 case CTL_DISABLE_PORT: 2574 case CTL_SET_PORT_WWNS: { 2575 struct ctl_port *port; 2576 struct ctl_port_entry *entry; 2577 2578 entry = (struct ctl_port_entry *)addr; 2579 2580 mtx_lock(&softc->ctl_lock); 2581 STAILQ_FOREACH(port, &softc->port_list, links) { 2582 int action, done; 2583 2584 if (port->targ_port < softc->port_min || 2585 port->targ_port >= softc->port_max) 2586 continue; 2587 2588 action = 0; 2589 done = 0; 2590 if ((entry->port_type == CTL_PORT_NONE) 2591 && (entry->targ_port == port->targ_port)) { 2592 /* 2593 * If the user only wants to enable or 2594 * disable or set WWNs on a specific port, 2595 * do the operation and we're done. 2596 */ 2597 action = 1; 2598 done = 1; 2599 } else if (entry->port_type & port->port_type) { 2600 /* 2601 * Compare the user's type mask with the 2602 * particular frontend type to see if we 2603 * have a match. 2604 */ 2605 action = 1; 2606 done = 0; 2607 2608 /* 2609 * Make sure the user isn't trying to set 2610 * WWNs on multiple ports at the same time. 2611 */ 2612 if (cmd == CTL_SET_PORT_WWNS) { 2613 printf("%s: Can't set WWNs on " 2614 "multiple ports\n", __func__); 2615 retval = EINVAL; 2616 break; 2617 } 2618 } 2619 if (action == 0) 2620 continue; 2621 2622 /* 2623 * XXX KDM we have to drop the lock here, because 2624 * the online/offline operations can potentially 2625 * block. We need to reference count the frontends 2626 * so they can't go away, 2627 */ 2628 if (cmd == CTL_ENABLE_PORT) { 2629 mtx_unlock(&softc->ctl_lock); 2630 ctl_port_online(port); 2631 mtx_lock(&softc->ctl_lock); 2632 } else if (cmd == CTL_DISABLE_PORT) { 2633 mtx_unlock(&softc->ctl_lock); 2634 ctl_port_offline(port); 2635 mtx_lock(&softc->ctl_lock); 2636 } else if (cmd == CTL_SET_PORT_WWNS) { 2637 ctl_port_set_wwns(port, 2638 (entry->flags & CTL_PORT_WWNN_VALID) ? 2639 1 : 0, entry->wwnn, 2640 (entry->flags & CTL_PORT_WWPN_VALID) ? 2641 1 : 0, entry->wwpn); 2642 } 2643 if (done != 0) 2644 break; 2645 } 2646 mtx_unlock(&softc->ctl_lock); 2647 break; 2648 } 2649 case CTL_GET_OOA: { 2650 struct ctl_ooa *ooa_hdr; 2651 struct ctl_ooa_entry *entries; 2652 uint32_t cur_fill_num; 2653 2654 ooa_hdr = (struct ctl_ooa *)addr; 2655 2656 if ((ooa_hdr->alloc_len == 0) 2657 || (ooa_hdr->alloc_num == 0)) { 2658 printf("%s: CTL_GET_OOA: alloc len %u and alloc num %u " 2659 "must be non-zero\n", __func__, 2660 ooa_hdr->alloc_len, ooa_hdr->alloc_num); 2661 retval = EINVAL; 2662 break; 2663 } 2664 2665 if (ooa_hdr->alloc_len != (ooa_hdr->alloc_num * 2666 sizeof(struct ctl_ooa_entry))) { 2667 printf("%s: CTL_GET_OOA: alloc len %u must be alloc " 2668 "num %d * sizeof(struct ctl_ooa_entry) %zd\n", 2669 __func__, ooa_hdr->alloc_len, 2670 ooa_hdr->alloc_num,sizeof(struct ctl_ooa_entry)); 2671 retval = EINVAL; 2672 break; 2673 } 2674 2675 entries = malloc(ooa_hdr->alloc_len, M_CTL, M_WAITOK | M_ZERO); 2676 if (entries == NULL) { 2677 printf("%s: could not allocate %d bytes for OOA " 2678 "dump\n", __func__, ooa_hdr->alloc_len); 2679 retval = ENOMEM; 2680 break; 2681 } 2682 2683 mtx_lock(&softc->ctl_lock); 2684 if ((ooa_hdr->flags & CTL_OOA_FLAG_ALL_LUNS) == 0 && 2685 (ooa_hdr->lun_num >= CTL_MAX_LUNS || 2686 softc->ctl_luns[ooa_hdr->lun_num] == NULL)) { 2687 mtx_unlock(&softc->ctl_lock); 2688 free(entries, M_CTL); 2689 printf("%s: CTL_GET_OOA: invalid LUN %ju\n", 2690 __func__, (uintmax_t)ooa_hdr->lun_num); 2691 retval = EINVAL; 2692 break; 2693 } 2694 2695 cur_fill_num = 0; 2696 2697 if (ooa_hdr->flags & CTL_OOA_FLAG_ALL_LUNS) { 2698 STAILQ_FOREACH(lun, &softc->lun_list, links) { 2699 ctl_ioctl_fill_ooa(lun, &cur_fill_num, 2700 ooa_hdr, entries); 2701 } 2702 } else { 2703 lun = softc->ctl_luns[ooa_hdr->lun_num]; 2704 ctl_ioctl_fill_ooa(lun, &cur_fill_num, ooa_hdr, 2705 entries); 2706 } 2707 mtx_unlock(&softc->ctl_lock); 2708 2709 ooa_hdr->fill_num = min(cur_fill_num, ooa_hdr->alloc_num); 2710 ooa_hdr->fill_len = ooa_hdr->fill_num * 2711 sizeof(struct ctl_ooa_entry); 2712 retval = copyout(entries, ooa_hdr->entries, ooa_hdr->fill_len); 2713 if (retval != 0) { 2714 printf("%s: error copying out %d bytes for OOA dump\n", 2715 __func__, ooa_hdr->fill_len); 2716 } 2717 2718 getbinuptime(&ooa_hdr->cur_bt); 2719 2720 if (cur_fill_num > ooa_hdr->alloc_num) { 2721 ooa_hdr->dropped_num = cur_fill_num -ooa_hdr->alloc_num; 2722 ooa_hdr->status = CTL_OOA_NEED_MORE_SPACE; 2723 } else { 2724 ooa_hdr->dropped_num = 0; 2725 ooa_hdr->status = CTL_OOA_OK; 2726 } 2727 2728 free(entries, M_CTL); 2729 break; 2730 } 2731 case CTL_DELAY_IO: { 2732 struct ctl_io_delay_info *delay_info; 2733 2734 delay_info = (struct ctl_io_delay_info *)addr; 2735 2736#ifdef CTL_IO_DELAY 2737 mtx_lock(&softc->ctl_lock); 2738 if (delay_info->lun_id >= CTL_MAX_LUNS || 2739 (lun = softc->ctl_luns[delay_info->lun_id]) == NULL) { 2740 mtx_unlock(&softc->ctl_lock); 2741 delay_info->status = CTL_DELAY_STATUS_INVALID_LUN; 2742 break; 2743 } 2744 mtx_lock(&lun->lun_lock); 2745 mtx_unlock(&softc->ctl_lock); 2746 delay_info->status = CTL_DELAY_STATUS_OK; 2747 switch (delay_info->delay_type) { 2748 case CTL_DELAY_TYPE_CONT: 2749 case CTL_DELAY_TYPE_ONESHOT: 2750 break; 2751 default: 2752 delay_info->status = CTL_DELAY_STATUS_INVALID_TYPE; 2753 break; 2754 } 2755 switch (delay_info->delay_loc) { 2756 case CTL_DELAY_LOC_DATAMOVE: 2757 lun->delay_info.datamove_type = delay_info->delay_type; 2758 lun->delay_info.datamove_delay = delay_info->delay_secs; 2759 break; 2760 case CTL_DELAY_LOC_DONE: 2761 lun->delay_info.done_type = delay_info->delay_type; 2762 lun->delay_info.done_delay = delay_info->delay_secs; 2763 break; 2764 default: 2765 delay_info->status = CTL_DELAY_STATUS_INVALID_LOC; 2766 break; 2767 } 2768 mtx_unlock(&lun->lun_lock); 2769#else 2770 delay_info->status = CTL_DELAY_STATUS_NOT_IMPLEMENTED; 2771#endif /* CTL_IO_DELAY */ 2772 break; 2773 } 2774 case CTL_GETSTATS: { 2775 struct ctl_stats *stats; 2776 int i; 2777 2778 stats = (struct ctl_stats *)addr; 2779 2780 if ((sizeof(struct ctl_lun_io_stats) * softc->num_luns) > 2781 stats->alloc_len) { 2782 stats->status = CTL_SS_NEED_MORE_SPACE; 2783 stats->num_luns = softc->num_luns; 2784 break; 2785 } 2786 /* 2787 * XXX KDM no locking here. If the LUN list changes, 2788 * things can blow up. 2789 */ 2790 i = 0; 2791 STAILQ_FOREACH(lun, &softc->lun_list, links) { 2792 retval = copyout(&lun->stats, &stats->lun_stats[i++], 2793 sizeof(lun->stats)); 2794 if (retval != 0) 2795 break; 2796 } 2797 stats->num_luns = softc->num_luns; 2798 stats->fill_len = sizeof(struct ctl_lun_io_stats) * 2799 softc->num_luns; 2800 stats->status = CTL_SS_OK; 2801#ifdef CTL_TIME_IO 2802 stats->flags = CTL_STATS_FLAG_TIME_VALID; 2803#else 2804 stats->flags = CTL_STATS_FLAG_NONE; 2805#endif 2806 getnanouptime(&stats->timestamp); 2807 break; 2808 } 2809 case CTL_ERROR_INJECT: { 2810 struct ctl_error_desc *err_desc, *new_err_desc; 2811 2812 err_desc = (struct ctl_error_desc *)addr; 2813 2814 new_err_desc = malloc(sizeof(*new_err_desc), M_CTL, 2815 M_WAITOK | M_ZERO); 2816 bcopy(err_desc, new_err_desc, sizeof(*new_err_desc)); 2817 2818 mtx_lock(&softc->ctl_lock); 2819 if (err_desc->lun_id >= CTL_MAX_LUNS || 2820 (lun = softc->ctl_luns[err_desc->lun_id]) == NULL) { 2821 mtx_unlock(&softc->ctl_lock); 2822 free(new_err_desc, M_CTL); 2823 printf("%s: CTL_ERROR_INJECT: invalid LUN %ju\n", 2824 __func__, (uintmax_t)err_desc->lun_id); 2825 retval = EINVAL; 2826 break; 2827 } 2828 mtx_lock(&lun->lun_lock); 2829 mtx_unlock(&softc->ctl_lock); 2830 2831 /* 2832 * We could do some checking here to verify the validity 2833 * of the request, but given the complexity of error 2834 * injection requests, the checking logic would be fairly 2835 * complex. 2836 * 2837 * For now, if the request is invalid, it just won't get 2838 * executed and might get deleted. 2839 */ 2840 STAILQ_INSERT_TAIL(&lun->error_list, new_err_desc, links); 2841 2842 /* 2843 * XXX KDM check to make sure the serial number is unique, 2844 * in case we somehow manage to wrap. That shouldn't 2845 * happen for a very long time, but it's the right thing to 2846 * do. 2847 */ 2848 new_err_desc->serial = lun->error_serial; 2849 err_desc->serial = lun->error_serial; 2850 lun->error_serial++; 2851 2852 mtx_unlock(&lun->lun_lock); 2853 break; 2854 } 2855 case CTL_ERROR_INJECT_DELETE: { 2856 struct ctl_error_desc *delete_desc, *desc, *desc2; 2857 int delete_done; 2858 2859 delete_desc = (struct ctl_error_desc *)addr; 2860 delete_done = 0; 2861 2862 mtx_lock(&softc->ctl_lock); 2863 if (delete_desc->lun_id >= CTL_MAX_LUNS || 2864 (lun = softc->ctl_luns[delete_desc->lun_id]) == NULL) { 2865 mtx_unlock(&softc->ctl_lock); 2866 printf("%s: CTL_ERROR_INJECT_DELETE: invalid LUN %ju\n", 2867 __func__, (uintmax_t)delete_desc->lun_id); 2868 retval = EINVAL; 2869 break; 2870 } 2871 mtx_lock(&lun->lun_lock); 2872 mtx_unlock(&softc->ctl_lock); 2873 STAILQ_FOREACH_SAFE(desc, &lun->error_list, links, desc2) { 2874 if (desc->serial != delete_desc->serial) 2875 continue; 2876 2877 STAILQ_REMOVE(&lun->error_list, desc, ctl_error_desc, 2878 links); 2879 free(desc, M_CTL); 2880 delete_done = 1; 2881 } 2882 mtx_unlock(&lun->lun_lock); 2883 if (delete_done == 0) { 2884 printf("%s: CTL_ERROR_INJECT_DELETE: can't find " 2885 "error serial %ju on LUN %u\n", __func__, 2886 delete_desc->serial, delete_desc->lun_id); 2887 retval = EINVAL; 2888 break; 2889 } 2890 break; 2891 } 2892 case CTL_DUMP_STRUCTS: { 2893 int j, k; 2894 struct ctl_port *port; 2895 struct ctl_frontend *fe; 2896 2897 mtx_lock(&softc->ctl_lock); 2898 printf("CTL Persistent Reservation information start:\n"); 2899 STAILQ_FOREACH(lun, &softc->lun_list, links) { 2900 mtx_lock(&lun->lun_lock); 2901 if ((lun->flags & CTL_LUN_DISABLED) != 0) { 2902 mtx_unlock(&lun->lun_lock); 2903 continue; 2904 } 2905 2906 for (j = 0; j < CTL_MAX_PORTS; j++) { 2907 if (lun->pr_keys[j] == NULL) 2908 continue; 2909 for (k = 0; k < CTL_MAX_INIT_PER_PORT; k++){ 2910 if (lun->pr_keys[j][k] == 0) 2911 continue; 2912 printf(" LUN %ju port %d iid %d key " 2913 "%#jx\n", lun->lun, j, k, 2914 (uintmax_t)lun->pr_keys[j][k]); 2915 } 2916 } 2917 mtx_unlock(&lun->lun_lock); 2918 } 2919 printf("CTL Persistent Reservation information end\n"); 2920 printf("CTL Ports:\n"); 2921 STAILQ_FOREACH(port, &softc->port_list, links) { 2922 printf(" Port %d '%s' Frontend '%s' Type %u pp %d vp %d WWNN " 2923 "%#jx WWPN %#jx\n", port->targ_port, port->port_name, 2924 port->frontend->name, port->port_type, 2925 port->physical_port, port->virtual_port, 2926 (uintmax_t)port->wwnn, (uintmax_t)port->wwpn); 2927 for (j = 0; j < CTL_MAX_INIT_PER_PORT; j++) { 2928 if (port->wwpn_iid[j].in_use == 0 && 2929 port->wwpn_iid[j].wwpn == 0 && 2930 port->wwpn_iid[j].name == NULL) 2931 continue; 2932 2933 printf(" iid %u use %d WWPN %#jx '%s'\n", 2934 j, port->wwpn_iid[j].in_use, 2935 (uintmax_t)port->wwpn_iid[j].wwpn, 2936 port->wwpn_iid[j].name); 2937 } 2938 } 2939 printf("CTL Port information end\n"); 2940 mtx_unlock(&softc->ctl_lock); 2941 /* 2942 * XXX KDM calling this without a lock. We'd likely want 2943 * to drop the lock before calling the frontend's dump 2944 * routine anyway. 2945 */ 2946 printf("CTL Frontends:\n"); 2947 STAILQ_FOREACH(fe, &softc->fe_list, links) { 2948 printf(" Frontend '%s'\n", fe->name); 2949 if (fe->fe_dump != NULL) 2950 fe->fe_dump(); 2951 } 2952 printf("CTL Frontend information end\n"); 2953 break; 2954 } 2955 case CTL_LUN_REQ: { 2956 struct ctl_lun_req *lun_req; 2957 struct ctl_backend_driver *backend; 2958 2959 lun_req = (struct ctl_lun_req *)addr; 2960 2961 backend = ctl_backend_find(lun_req->backend); 2962 if (backend == NULL) { 2963 lun_req->status = CTL_LUN_ERROR; 2964 snprintf(lun_req->error_str, 2965 sizeof(lun_req->error_str), 2966 "Backend \"%s\" not found.", 2967 lun_req->backend); 2968 break; 2969 } 2970 if (lun_req->num_be_args > 0) { 2971 lun_req->kern_be_args = ctl_copyin_args( 2972 lun_req->num_be_args, 2973 lun_req->be_args, 2974 lun_req->error_str, 2975 sizeof(lun_req->error_str)); 2976 if (lun_req->kern_be_args == NULL) { 2977 lun_req->status = CTL_LUN_ERROR; 2978 break; 2979 } 2980 } 2981 2982 retval = backend->ioctl(dev, cmd, addr, flag, td); 2983 2984 if (lun_req->num_be_args > 0) { 2985 ctl_copyout_args(lun_req->num_be_args, 2986 lun_req->kern_be_args); 2987 ctl_free_args(lun_req->num_be_args, 2988 lun_req->kern_be_args); 2989 } 2990 break; 2991 } 2992 case CTL_LUN_LIST: { 2993 struct sbuf *sb; 2994 struct ctl_lun_list *list; 2995 struct ctl_option *opt; 2996 2997 list = (struct ctl_lun_list *)addr; 2998 2999 /* 3000 * Allocate a fixed length sbuf here, based on the length 3001 * of the user's buffer. We could allocate an auto-extending 3002 * buffer, and then tell the user how much larger our 3003 * amount of data is than his buffer, but that presents 3004 * some problems: 3005 * 3006 * 1. The sbuf(9) routines use a blocking malloc, and so 3007 * we can't hold a lock while calling them with an 3008 * auto-extending buffer. 3009 * 3010 * 2. There is not currently a LUN reference counting 3011 * mechanism, outside of outstanding transactions on 3012 * the LUN's OOA queue. So a LUN could go away on us 3013 * while we're getting the LUN number, backend-specific 3014 * information, etc. Thus, given the way things 3015 * currently work, we need to hold the CTL lock while 3016 * grabbing LUN information. 3017 * 3018 * So, from the user's standpoint, the best thing to do is 3019 * allocate what he thinks is a reasonable buffer length, 3020 * and then if he gets a CTL_LUN_LIST_NEED_MORE_SPACE error, 3021 * double the buffer length and try again. (And repeat 3022 * that until he succeeds.) 3023 */ 3024 sb = sbuf_new(NULL, NULL, list->alloc_len, SBUF_FIXEDLEN); 3025 if (sb == NULL) { 3026 list->status = CTL_LUN_LIST_ERROR; 3027 snprintf(list->error_str, sizeof(list->error_str), 3028 "Unable to allocate %d bytes for LUN list", 3029 list->alloc_len); 3030 break; 3031 } 3032 3033 sbuf_printf(sb, "<ctllunlist>\n"); 3034 3035 mtx_lock(&softc->ctl_lock); 3036 STAILQ_FOREACH(lun, &softc->lun_list, links) { 3037 mtx_lock(&lun->lun_lock); 3038 retval = sbuf_printf(sb, "<lun id=\"%ju\">\n", 3039 (uintmax_t)lun->lun); 3040 3041 /* 3042 * Bail out as soon as we see that we've overfilled 3043 * the buffer. 3044 */ 3045 if (retval != 0) 3046 break; 3047 3048 retval = sbuf_printf(sb, "\t<backend_type>%s" 3049 "</backend_type>\n", 3050 (lun->backend == NULL) ? "none" : 3051 lun->backend->name); 3052 3053 if (retval != 0) 3054 break; 3055 3056 retval = sbuf_printf(sb, "\t<lun_type>%d</lun_type>\n", 3057 lun->be_lun->lun_type); 3058 3059 if (retval != 0) 3060 break; 3061 3062 if (lun->backend == NULL) { 3063 retval = sbuf_printf(sb, "</lun>\n"); 3064 if (retval != 0) 3065 break; 3066 continue; 3067 } 3068 3069 retval = sbuf_printf(sb, "\t<size>%ju</size>\n", 3070 (lun->be_lun->maxlba > 0) ? 3071 lun->be_lun->maxlba + 1 : 0); 3072 3073 if (retval != 0) 3074 break; 3075 3076 retval = sbuf_printf(sb, "\t<blocksize>%u</blocksize>\n", 3077 lun->be_lun->blocksize); 3078 3079 if (retval != 0) 3080 break; 3081 3082 retval = sbuf_printf(sb, "\t<serial_number>"); 3083 3084 if (retval != 0) 3085 break; 3086 3087 retval = ctl_sbuf_printf_esc(sb, 3088 lun->be_lun->serial_num, 3089 sizeof(lun->be_lun->serial_num)); 3090 3091 if (retval != 0) 3092 break; 3093 3094 retval = sbuf_printf(sb, "</serial_number>\n"); 3095 3096 if (retval != 0) 3097 break; 3098 3099 retval = sbuf_printf(sb, "\t<device_id>"); 3100 3101 if (retval != 0) 3102 break; 3103 3104 retval = ctl_sbuf_printf_esc(sb, 3105 lun->be_lun->device_id, 3106 sizeof(lun->be_lun->device_id)); 3107 3108 if (retval != 0) 3109 break; 3110 3111 retval = sbuf_printf(sb, "</device_id>\n"); 3112 3113 if (retval != 0) 3114 break; 3115 3116 if (lun->backend->lun_info != NULL) { 3117 retval = lun->backend->lun_info(lun->be_lun->be_lun, sb); 3118 if (retval != 0) 3119 break; 3120 } 3121 STAILQ_FOREACH(opt, &lun->be_lun->options, links) { 3122 retval = sbuf_printf(sb, "\t<%s>%s</%s>\n", 3123 opt->name, opt->value, opt->name); 3124 if (retval != 0) 3125 break; 3126 } 3127 3128 retval = sbuf_printf(sb, "</lun>\n"); 3129 3130 if (retval != 0) 3131 break; 3132 mtx_unlock(&lun->lun_lock); 3133 } 3134 if (lun != NULL) 3135 mtx_unlock(&lun->lun_lock); 3136 mtx_unlock(&softc->ctl_lock); 3137 3138 if ((retval != 0) 3139 || ((retval = sbuf_printf(sb, "</ctllunlist>\n")) != 0)) { 3140 retval = 0; 3141 sbuf_delete(sb); 3142 list->status = CTL_LUN_LIST_NEED_MORE_SPACE; 3143 snprintf(list->error_str, sizeof(list->error_str), 3144 "Out of space, %d bytes is too small", 3145 list->alloc_len); 3146 break; 3147 } 3148 3149 sbuf_finish(sb); 3150 3151 retval = copyout(sbuf_data(sb), list->lun_xml, 3152 sbuf_len(sb) + 1); 3153 3154 list->fill_len = sbuf_len(sb) + 1; 3155 list->status = CTL_LUN_LIST_OK; 3156 sbuf_delete(sb); 3157 break; 3158 } 3159 case CTL_ISCSI: { 3160 struct ctl_iscsi *ci; 3161 struct ctl_frontend *fe; 3162 3163 ci = (struct ctl_iscsi *)addr; 3164 3165 fe = ctl_frontend_find("iscsi"); 3166 if (fe == NULL) { 3167 ci->status = CTL_ISCSI_ERROR; 3168 snprintf(ci->error_str, sizeof(ci->error_str), 3169 "Frontend \"iscsi\" not found."); 3170 break; 3171 } 3172 3173 retval = fe->ioctl(dev, cmd, addr, flag, td); 3174 break; 3175 } 3176 case CTL_PORT_REQ: { 3177 struct ctl_req *req; 3178 struct ctl_frontend *fe; 3179 3180 req = (struct ctl_req *)addr; 3181 3182 fe = ctl_frontend_find(req->driver); 3183 if (fe == NULL) { 3184 req->status = CTL_LUN_ERROR; 3185 snprintf(req->error_str, sizeof(req->error_str), 3186 "Frontend \"%s\" not found.", req->driver); 3187 break; 3188 } 3189 if (req->num_args > 0) { 3190 req->kern_args = ctl_copyin_args(req->num_args, 3191 req->args, req->error_str, sizeof(req->error_str)); 3192 if (req->kern_args == NULL) { 3193 req->status = CTL_LUN_ERROR; 3194 break; 3195 } 3196 } 3197 3198 if (fe->ioctl) 3199 retval = fe->ioctl(dev, cmd, addr, flag, td); 3200 else 3201 retval = ENODEV; 3202 3203 if (req->num_args > 0) { 3204 ctl_copyout_args(req->num_args, req->kern_args); 3205 ctl_free_args(req->num_args, req->kern_args); 3206 } 3207 break; 3208 } 3209 case CTL_PORT_LIST: { 3210 struct sbuf *sb; 3211 struct ctl_port *port; 3212 struct ctl_lun_list *list; 3213 struct ctl_option *opt; 3214 int j; 3215 uint32_t plun; 3216 3217 list = (struct ctl_lun_list *)addr; 3218 3219 sb = sbuf_new(NULL, NULL, list->alloc_len, SBUF_FIXEDLEN); 3220 if (sb == NULL) { 3221 list->status = CTL_LUN_LIST_ERROR; 3222 snprintf(list->error_str, sizeof(list->error_str), 3223 "Unable to allocate %d bytes for LUN list", 3224 list->alloc_len); 3225 break; 3226 } 3227 3228 sbuf_printf(sb, "<ctlportlist>\n"); 3229 3230 mtx_lock(&softc->ctl_lock); 3231 STAILQ_FOREACH(port, &softc->port_list, links) { 3232 retval = sbuf_printf(sb, "<targ_port id=\"%ju\">\n", 3233 (uintmax_t)port->targ_port); 3234 3235 /* 3236 * Bail out as soon as we see that we've overfilled 3237 * the buffer. 3238 */ 3239 if (retval != 0) 3240 break; 3241 3242 retval = sbuf_printf(sb, "\t<frontend_type>%s" 3243 "</frontend_type>\n", port->frontend->name); 3244 if (retval != 0) 3245 break; 3246 3247 retval = sbuf_printf(sb, "\t<port_type>%d</port_type>\n", 3248 port->port_type); 3249 if (retval != 0) 3250 break; 3251 3252 retval = sbuf_printf(sb, "\t<online>%s</online>\n", 3253 (port->status & CTL_PORT_STATUS_ONLINE) ? "YES" : "NO"); 3254 if (retval != 0) 3255 break; 3256 3257 retval = sbuf_printf(sb, "\t<port_name>%s</port_name>\n", 3258 port->port_name); 3259 if (retval != 0) 3260 break; 3261 3262 retval = sbuf_printf(sb, "\t<physical_port>%d</physical_port>\n", 3263 port->physical_port); 3264 if (retval != 0) 3265 break; 3266 3267 retval = sbuf_printf(sb, "\t<virtual_port>%d</virtual_port>\n", 3268 port->virtual_port); 3269 if (retval != 0) 3270 break; 3271 3272 if (port->target_devid != NULL) { 3273 sbuf_printf(sb, "\t<target>"); 3274 ctl_id_sbuf(port->target_devid, sb); 3275 sbuf_printf(sb, "</target>\n"); 3276 } 3277 3278 if (port->port_devid != NULL) { 3279 sbuf_printf(sb, "\t<port>"); 3280 ctl_id_sbuf(port->port_devid, sb); 3281 sbuf_printf(sb, "</port>\n"); 3282 } 3283 3284 if (port->port_info != NULL) { 3285 retval = port->port_info(port->onoff_arg, sb); 3286 if (retval != 0) 3287 break; 3288 } 3289 STAILQ_FOREACH(opt, &port->options, links) { 3290 retval = sbuf_printf(sb, "\t<%s>%s</%s>\n", 3291 opt->name, opt->value, opt->name); 3292 if (retval != 0) 3293 break; 3294 } 3295 3296 if (port->lun_map != NULL) { 3297 sbuf_printf(sb, "\t<lun_map>on</lun_map>\n"); 3298 for (j = 0; j < CTL_MAX_LUNS; j++) { 3299 plun = ctl_lun_map_from_port(port, j); 3300 if (plun == UINT32_MAX) 3301 continue; 3302 sbuf_printf(sb, 3303 "\t<lun id=\"%u\">%u</lun>\n", 3304 j, plun); 3305 } 3306 } 3307 3308 for (j = 0; j < CTL_MAX_INIT_PER_PORT; j++) { 3309 if (port->wwpn_iid[j].in_use == 0 || 3310 (port->wwpn_iid[j].wwpn == 0 && 3311 port->wwpn_iid[j].name == NULL)) 3312 continue; 3313 3314 if (port->wwpn_iid[j].name != NULL) 3315 retval = sbuf_printf(sb, 3316 "\t<initiator id=\"%u\">%s</initiator>\n", 3317 j, port->wwpn_iid[j].name); 3318 else 3319 retval = sbuf_printf(sb, 3320 "\t<initiator id=\"%u\">naa.%08jx</initiator>\n", 3321 j, port->wwpn_iid[j].wwpn); 3322 if (retval != 0) 3323 break; 3324 } 3325 if (retval != 0) 3326 break; 3327 3328 retval = sbuf_printf(sb, "</targ_port>\n"); 3329 if (retval != 0) 3330 break; 3331 } 3332 mtx_unlock(&softc->ctl_lock); 3333 3334 if ((retval != 0) 3335 || ((retval = sbuf_printf(sb, "</ctlportlist>\n")) != 0)) { 3336 retval = 0; 3337 sbuf_delete(sb); 3338 list->status = CTL_LUN_LIST_NEED_MORE_SPACE; 3339 snprintf(list->error_str, sizeof(list->error_str), 3340 "Out of space, %d bytes is too small", 3341 list->alloc_len); 3342 break; 3343 } 3344 3345 sbuf_finish(sb); 3346 3347 retval = copyout(sbuf_data(sb), list->lun_xml, 3348 sbuf_len(sb) + 1); 3349 3350 list->fill_len = sbuf_len(sb) + 1; 3351 list->status = CTL_LUN_LIST_OK; 3352 sbuf_delete(sb); 3353 break; 3354 } 3355 case CTL_LUN_MAP: { 3356 struct ctl_lun_map *lm = (struct ctl_lun_map *)addr; 3357 struct ctl_port *port; 3358 3359 mtx_lock(&softc->ctl_lock); 3360 if (lm->port < softc->port_min || 3361 lm->port >= softc->port_max || 3362 (port = softc->ctl_ports[lm->port]) == NULL) { 3363 mtx_unlock(&softc->ctl_lock); 3364 return (ENXIO); 3365 } 3366 if (port->status & CTL_PORT_STATUS_ONLINE) { 3367 STAILQ_FOREACH(lun, &softc->lun_list, links) { 3368 if (ctl_lun_map_to_port(port, lun->lun) == 3369 UINT32_MAX) 3370 continue; 3371 mtx_lock(&lun->lun_lock); 3372 ctl_est_ua_port(lun, lm->port, -1, 3373 CTL_UA_LUN_CHANGE); 3374 mtx_unlock(&lun->lun_lock); 3375 } 3376 } 3377 mtx_unlock(&softc->ctl_lock); // XXX: port_enable sleeps 3378 if (lm->plun < CTL_MAX_LUNS) { 3379 if (lm->lun == UINT32_MAX) 3380 retval = ctl_lun_map_unset(port, lm->plun); 3381 else if (lm->lun < CTL_MAX_LUNS && 3382 softc->ctl_luns[lm->lun] != NULL) 3383 retval = ctl_lun_map_set(port, lm->plun, lm->lun); 3384 else 3385 return (ENXIO); 3386 } else if (lm->plun == UINT32_MAX) { 3387 if (lm->lun == UINT32_MAX) 3388 retval = ctl_lun_map_deinit(port); 3389 else 3390 retval = ctl_lun_map_init(port); 3391 } else 3392 return (ENXIO); 3393 if (port->status & CTL_PORT_STATUS_ONLINE) 3394 ctl_isc_announce_port(port); 3395 break; 3396 } 3397 default: { 3398 /* XXX KDM should we fix this? */ 3399#if 0 3400 struct ctl_backend_driver *backend; 3401 unsigned int type; 3402 int found; 3403 3404 found = 0; 3405 3406 /* 3407 * We encode the backend type as the ioctl type for backend 3408 * ioctls. So parse it out here, and then search for a 3409 * backend of this type. 3410 */ 3411 type = _IOC_TYPE(cmd); 3412 3413 STAILQ_FOREACH(backend, &softc->be_list, links) { 3414 if (backend->type == type) { 3415 found = 1; 3416 break; 3417 } 3418 } 3419 if (found == 0) { 3420 printf("ctl: unknown ioctl command %#lx or backend " 3421 "%d\n", cmd, type); 3422 retval = EINVAL; 3423 break; 3424 } 3425 retval = backend->ioctl(dev, cmd, addr, flag, td); 3426#endif 3427 retval = ENOTTY; 3428 break; 3429 } 3430 } 3431 return (retval); 3432} 3433 3434uint32_t 3435ctl_get_initindex(struct ctl_nexus *nexus) 3436{ 3437 return (nexus->initid + (nexus->targ_port * CTL_MAX_INIT_PER_PORT)); 3438} 3439 3440int 3441ctl_lun_map_init(struct ctl_port *port) 3442{ 3443 struct ctl_softc *softc = port->ctl_softc; 3444 struct ctl_lun *lun; 3445 uint32_t i; 3446 3447 if (port->lun_map == NULL) 3448 port->lun_map = malloc(sizeof(uint32_t) * CTL_MAX_LUNS, 3449 M_CTL, M_NOWAIT); 3450 if (port->lun_map == NULL) 3451 return (ENOMEM); 3452 for (i = 0; i < CTL_MAX_LUNS; i++) 3453 port->lun_map[i] = UINT32_MAX; 3454 if (port->status & CTL_PORT_STATUS_ONLINE) { 3455 if (port->lun_disable != NULL) { 3456 STAILQ_FOREACH(lun, &softc->lun_list, links) 3457 port->lun_disable(port->targ_lun_arg, lun->lun); 3458 } 3459 ctl_isc_announce_port(port); 3460 } 3461 return (0); 3462} 3463 3464int 3465ctl_lun_map_deinit(struct ctl_port *port) 3466{ 3467 struct ctl_softc *softc = port->ctl_softc; 3468 struct ctl_lun *lun; 3469 3470 if (port->lun_map == NULL) 3471 return (0); 3472 free(port->lun_map, M_CTL); 3473 port->lun_map = NULL; 3474 if (port->status & CTL_PORT_STATUS_ONLINE) { 3475 if (port->lun_enable != NULL) { 3476 STAILQ_FOREACH(lun, &softc->lun_list, links) 3477 port->lun_enable(port->targ_lun_arg, lun->lun); 3478 } 3479 ctl_isc_announce_port(port); 3480 } 3481 return (0); 3482} 3483 3484int 3485ctl_lun_map_set(struct ctl_port *port, uint32_t plun, uint32_t glun) 3486{ 3487 int status; 3488 uint32_t old; 3489 3490 if (port->lun_map == NULL) { 3491 status = ctl_lun_map_init(port); 3492 if (status != 0) 3493 return (status); 3494 } 3495 old = port->lun_map[plun]; 3496 port->lun_map[plun] = glun; 3497 if ((port->status & CTL_PORT_STATUS_ONLINE) && old == UINT32_MAX) { 3498 if (port->lun_enable != NULL) 3499 port->lun_enable(port->targ_lun_arg, plun); 3500 ctl_isc_announce_port(port); 3501 } 3502 return (0); 3503} 3504 3505int 3506ctl_lun_map_unset(struct ctl_port *port, uint32_t plun) 3507{ 3508 uint32_t old; 3509 3510 if (port->lun_map == NULL) 3511 return (0); 3512 old = port->lun_map[plun]; 3513 port->lun_map[plun] = UINT32_MAX; 3514 if ((port->status & CTL_PORT_STATUS_ONLINE) && old != UINT32_MAX) { 3515 if (port->lun_disable != NULL) 3516 port->lun_disable(port->targ_lun_arg, plun); 3517 ctl_isc_announce_port(port); 3518 } 3519 return (0); 3520} 3521 3522uint32_t 3523ctl_lun_map_from_port(struct ctl_port *port, uint32_t lun_id) 3524{ 3525 3526 if (port == NULL) 3527 return (UINT32_MAX); 3528 if (port->lun_map == NULL || lun_id == UINT32_MAX) 3529 return (lun_id); 3530 return (port->lun_map[lun_id]); 3531} 3532 3533uint32_t 3534ctl_lun_map_to_port(struct ctl_port *port, uint32_t lun_id) 3535{ 3536 uint32_t i; 3537 3538 if (port == NULL) 3539 return (UINT32_MAX); 3540 if (port->lun_map == NULL) 3541 return (lun_id); 3542 for (i = 0; i < CTL_MAX_LUNS; i++) { 3543 if (port->lun_map[i] == lun_id) 3544 return (i); 3545 } 3546 return (UINT32_MAX); 3547} 3548 3549uint32_t 3550ctl_decode_lun(uint64_t encoded) 3551{ 3552 uint8_t lun[8]; 3553 uint32_t result = 0xffffffff; 3554 3555 be64enc(lun, encoded); 3556 switch (lun[0] & RPL_LUNDATA_ATYP_MASK) { 3557 case RPL_LUNDATA_ATYP_PERIPH: 3558 if ((lun[0] & 0x3f) == 0 && lun[2] == 0 && lun[3] == 0 && 3559 lun[4] == 0 && lun[5] == 0 && lun[6] == 0 && lun[7] == 0) 3560 result = lun[1]; 3561 break; 3562 case RPL_LUNDATA_ATYP_FLAT: 3563 if (lun[2] == 0 && lun[3] == 0 && lun[4] == 0 && lun[5] == 0 && 3564 lun[6] == 0 && lun[7] == 0) 3565 result = ((lun[0] & 0x3f) << 8) + lun[1]; 3566 break; 3567 case RPL_LUNDATA_ATYP_EXTLUN: 3568 switch (lun[0] & RPL_LUNDATA_EXT_EAM_MASK) { 3569 case 0x02: 3570 switch (lun[0] & RPL_LUNDATA_EXT_LEN_MASK) { 3571 case 0x00: 3572 result = lun[1]; 3573 break; 3574 case 0x10: 3575 result = (lun[1] << 16) + (lun[2] << 8) + 3576 lun[3]; 3577 break; 3578 case 0x20: 3579 if (lun[1] == 0 && lun[6] == 0 && lun[7] == 0) 3580 result = (lun[2] << 24) + 3581 (lun[3] << 16) + (lun[4] << 8) + 3582 lun[5]; 3583 break; 3584 } 3585 break; 3586 case RPL_LUNDATA_EXT_EAM_NOT_SPEC: 3587 result = 0xffffffff; 3588 break; 3589 } 3590 break; 3591 } 3592 return (result); 3593} 3594 3595uint64_t 3596ctl_encode_lun(uint32_t decoded) 3597{ 3598 uint64_t l = decoded; 3599 3600 if (l <= 0xff) 3601 return (((uint64_t)RPL_LUNDATA_ATYP_PERIPH << 56) | (l << 48)); 3602 if (l <= 0x3fff) 3603 return (((uint64_t)RPL_LUNDATA_ATYP_FLAT << 56) | (l << 48)); 3604 if (l <= 0xffffff) 3605 return (((uint64_t)(RPL_LUNDATA_ATYP_EXTLUN | 0x12) << 56) | 3606 (l << 32)); 3607 return ((((uint64_t)RPL_LUNDATA_ATYP_EXTLUN | 0x22) << 56) | (l << 16)); 3608} 3609 3610static struct ctl_port * 3611ctl_io_port(struct ctl_io_hdr *io_hdr) 3612{ 3613 3614 return (control_softc->ctl_ports[io_hdr->nexus.targ_port]); 3615} 3616 3617int 3618ctl_ffz(uint32_t *mask, uint32_t first, uint32_t last) 3619{ 3620 int i; 3621 3622 for (i = first; i < last; i++) { 3623 if ((mask[i / 32] & (1 << (i % 32))) == 0) 3624 return (i); 3625 } 3626 return (-1); 3627} 3628 3629int 3630ctl_set_mask(uint32_t *mask, uint32_t bit) 3631{ 3632 uint32_t chunk, piece; 3633 3634 chunk = bit >> 5; 3635 piece = bit % (sizeof(uint32_t) * 8); 3636 3637 if ((mask[chunk] & (1 << piece)) != 0) 3638 return (-1); 3639 else 3640 mask[chunk] |= (1 << piece); 3641 3642 return (0); 3643} 3644 3645int 3646ctl_clear_mask(uint32_t *mask, uint32_t bit) 3647{ 3648 uint32_t chunk, piece; 3649 3650 chunk = bit >> 5; 3651 piece = bit % (sizeof(uint32_t) * 8); 3652 3653 if ((mask[chunk] & (1 << piece)) == 0) 3654 return (-1); 3655 else 3656 mask[chunk] &= ~(1 << piece); 3657 3658 return (0); 3659} 3660 3661int 3662ctl_is_set(uint32_t *mask, uint32_t bit) 3663{ 3664 uint32_t chunk, piece; 3665 3666 chunk = bit >> 5; 3667 piece = bit % (sizeof(uint32_t) * 8); 3668 3669 if ((mask[chunk] & (1 << piece)) == 0) 3670 return (0); 3671 else 3672 return (1); 3673} 3674 3675static uint64_t 3676ctl_get_prkey(struct ctl_lun *lun, uint32_t residx) 3677{ 3678 uint64_t *t; 3679 3680 t = lun->pr_keys[residx/CTL_MAX_INIT_PER_PORT]; 3681 if (t == NULL) 3682 return (0); 3683 return (t[residx % CTL_MAX_INIT_PER_PORT]); 3684} 3685 3686static void 3687ctl_clr_prkey(struct ctl_lun *lun, uint32_t residx) 3688{ 3689 uint64_t *t; 3690 3691 t = lun->pr_keys[residx/CTL_MAX_INIT_PER_PORT]; 3692 if (t == NULL) 3693 return; 3694 t[residx % CTL_MAX_INIT_PER_PORT] = 0; 3695} 3696 3697static void 3698ctl_alloc_prkey(struct ctl_lun *lun, uint32_t residx) 3699{ 3700 uint64_t *p; 3701 u_int i; 3702 3703 i = residx/CTL_MAX_INIT_PER_PORT; 3704 if (lun->pr_keys[i] != NULL) 3705 return; 3706 mtx_unlock(&lun->lun_lock); 3707 p = malloc(sizeof(uint64_t) * CTL_MAX_INIT_PER_PORT, M_CTL, 3708 M_WAITOK | M_ZERO); 3709 mtx_lock(&lun->lun_lock); 3710 if (lun->pr_keys[i] == NULL) 3711 lun->pr_keys[i] = p; 3712 else 3713 free(p, M_CTL); 3714} 3715 3716static void 3717ctl_set_prkey(struct ctl_lun *lun, uint32_t residx, uint64_t key) 3718{ 3719 uint64_t *t; 3720 3721 t = lun->pr_keys[residx/CTL_MAX_INIT_PER_PORT]; 3722 KASSERT(t != NULL, ("prkey %d is not allocated", residx)); 3723 t[residx % CTL_MAX_INIT_PER_PORT] = key; 3724} 3725 3726/* 3727 * ctl_softc, pool_name, total_ctl_io are passed in. 3728 * npool is passed out. 3729 */ 3730int 3731ctl_pool_create(struct ctl_softc *ctl_softc, const char *pool_name, 3732 uint32_t total_ctl_io, void **npool) 3733{ 3734#ifdef IO_POOLS 3735 struct ctl_io_pool *pool; 3736 3737 pool = (struct ctl_io_pool *)malloc(sizeof(*pool), M_CTL, 3738 M_NOWAIT | M_ZERO); 3739 if (pool == NULL) 3740 return (ENOMEM); 3741 3742 snprintf(pool->name, sizeof(pool->name), "CTL IO %s", pool_name); 3743 pool->ctl_softc = ctl_softc; 3744 pool->zone = uma_zsecond_create(pool->name, NULL, 3745 NULL, NULL, NULL, ctl_softc->io_zone); 3746 /* uma_prealloc(pool->zone, total_ctl_io); */ 3747 3748 *npool = pool; 3749#else 3750 *npool = ctl_softc->io_zone; 3751#endif 3752 return (0); 3753} 3754 3755void 3756ctl_pool_free(struct ctl_io_pool *pool) 3757{ 3758 3759 if (pool == NULL) 3760 return; 3761 3762#ifdef IO_POOLS 3763 uma_zdestroy(pool->zone); 3764 free(pool, M_CTL); 3765#endif 3766} 3767 3768union ctl_io * 3769ctl_alloc_io(void *pool_ref) 3770{ 3771 union ctl_io *io; 3772#ifdef IO_POOLS 3773 struct ctl_io_pool *pool = (struct ctl_io_pool *)pool_ref; 3774 3775 io = uma_zalloc(pool->zone, M_WAITOK); 3776#else 3777 io = uma_zalloc((uma_zone_t)pool_ref, M_WAITOK); 3778#endif 3779 if (io != NULL) 3780 io->io_hdr.pool = pool_ref; 3781 return (io); 3782} 3783 3784union ctl_io * 3785ctl_alloc_io_nowait(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_NOWAIT); 3792#else 3793 io = uma_zalloc((uma_zone_t)pool_ref, M_NOWAIT); 3794#endif 3795 if (io != NULL) 3796 io->io_hdr.pool = pool_ref; 3797 return (io); 3798} 3799 3800void 3801ctl_free_io(union ctl_io *io) 3802{ 3803#ifdef IO_POOLS 3804 struct ctl_io_pool *pool; 3805#endif 3806 3807 if (io == NULL) 3808 return; 3809 3810#ifdef IO_POOLS 3811 pool = (struct ctl_io_pool *)io->io_hdr.pool; 3812 uma_zfree(pool->zone, io); 3813#else 3814 uma_zfree((uma_zone_t)io->io_hdr.pool, io); 3815#endif 3816} 3817 3818void 3819ctl_zero_io(union ctl_io *io) 3820{ 3821 void *pool_ref; 3822 3823 if (io == NULL) 3824 return; 3825 3826 /* 3827 * May need to preserve linked list pointers at some point too. 3828 */ 3829 pool_ref = io->io_hdr.pool; 3830 memset(io, 0, sizeof(*io)); 3831 io->io_hdr.pool = pool_ref; 3832} 3833 3834int 3835ctl_expand_number(const char *buf, uint64_t *num) 3836{ 3837 char *endptr; 3838 uint64_t number; 3839 unsigned shift; 3840 3841 number = strtoq(buf, &endptr, 0); 3842 3843 switch (tolower((unsigned char)*endptr)) { 3844 case 'e': 3845 shift = 60; 3846 break; 3847 case 'p': 3848 shift = 50; 3849 break; 3850 case 't': 3851 shift = 40; 3852 break; 3853 case 'g': 3854 shift = 30; 3855 break; 3856 case 'm': 3857 shift = 20; 3858 break; 3859 case 'k': 3860 shift = 10; 3861 break; 3862 case 'b': 3863 case '\0': /* No unit. */ 3864 *num = number; 3865 return (0); 3866 default: 3867 /* Unrecognized unit. */ 3868 return (-1); 3869 } 3870 3871 if ((number << shift) >> shift != number) { 3872 /* Overflow */ 3873 return (-1); 3874 } 3875 *num = number << shift; 3876 return (0); 3877} 3878 3879 3880/* 3881 * This routine could be used in the future to load default and/or saved 3882 * mode page parameters for a particuar lun. 3883 */ 3884static int 3885ctl_init_page_index(struct ctl_lun *lun) 3886{ 3887 int i, page_code; 3888 struct ctl_page_index *page_index; 3889 const char *value; 3890 uint64_t ival; 3891 3892 memcpy(&lun->mode_pages.index, page_index_template, 3893 sizeof(page_index_template)); 3894 3895 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 3896 3897 page_index = &lun->mode_pages.index[i]; 3898 if (lun->be_lun->lun_type == T_DIRECT && 3899 (page_index->page_flags & CTL_PAGE_FLAG_DIRECT) == 0) 3900 continue; 3901 if (lun->be_lun->lun_type == T_PROCESSOR && 3902 (page_index->page_flags & CTL_PAGE_FLAG_PROC) == 0) 3903 continue; 3904 if (lun->be_lun->lun_type == T_CDROM && 3905 (page_index->page_flags & CTL_PAGE_FLAG_CDROM) == 0) 3906 continue; 3907 3908 page_code = page_index->page_code & SMPH_PC_MASK; 3909 switch (page_code) { 3910 case SMS_RW_ERROR_RECOVERY_PAGE: { 3911 KASSERT(page_index->subpage == SMS_SUBPAGE_PAGE_0, 3912 ("subpage %#x for page %#x is incorrect!", 3913 page_index->subpage, page_code)); 3914 memcpy(&lun->mode_pages.rw_er_page[CTL_PAGE_CURRENT], 3915 &rw_er_page_default, 3916 sizeof(rw_er_page_default)); 3917 memcpy(&lun->mode_pages.rw_er_page[CTL_PAGE_CHANGEABLE], 3918 &rw_er_page_changeable, 3919 sizeof(rw_er_page_changeable)); 3920 memcpy(&lun->mode_pages.rw_er_page[CTL_PAGE_DEFAULT], 3921 &rw_er_page_default, 3922 sizeof(rw_er_page_default)); 3923 memcpy(&lun->mode_pages.rw_er_page[CTL_PAGE_SAVED], 3924 &rw_er_page_default, 3925 sizeof(rw_er_page_default)); 3926 page_index->page_data = 3927 (uint8_t *)lun->mode_pages.rw_er_page; 3928 break; 3929 } 3930 case SMS_FORMAT_DEVICE_PAGE: { 3931 struct scsi_format_page *format_page; 3932 3933 KASSERT(page_index->subpage == SMS_SUBPAGE_PAGE_0, 3934 ("subpage %#x for page %#x is incorrect!", 3935 page_index->subpage, page_code)); 3936 3937 /* 3938 * Sectors per track are set above. Bytes per 3939 * sector need to be set here on a per-LUN basis. 3940 */ 3941 memcpy(&lun->mode_pages.format_page[CTL_PAGE_CURRENT], 3942 &format_page_default, 3943 sizeof(format_page_default)); 3944 memcpy(&lun->mode_pages.format_page[ 3945 CTL_PAGE_CHANGEABLE], &format_page_changeable, 3946 sizeof(format_page_changeable)); 3947 memcpy(&lun->mode_pages.format_page[CTL_PAGE_DEFAULT], 3948 &format_page_default, 3949 sizeof(format_page_default)); 3950 memcpy(&lun->mode_pages.format_page[CTL_PAGE_SAVED], 3951 &format_page_default, 3952 sizeof(format_page_default)); 3953 3954 format_page = &lun->mode_pages.format_page[ 3955 CTL_PAGE_CURRENT]; 3956 scsi_ulto2b(lun->be_lun->blocksize, 3957 format_page->bytes_per_sector); 3958 3959 format_page = &lun->mode_pages.format_page[ 3960 CTL_PAGE_DEFAULT]; 3961 scsi_ulto2b(lun->be_lun->blocksize, 3962 format_page->bytes_per_sector); 3963 3964 format_page = &lun->mode_pages.format_page[ 3965 CTL_PAGE_SAVED]; 3966 scsi_ulto2b(lun->be_lun->blocksize, 3967 format_page->bytes_per_sector); 3968 3969 page_index->page_data = 3970 (uint8_t *)lun->mode_pages.format_page; 3971 break; 3972 } 3973 case SMS_RIGID_DISK_PAGE: { 3974 struct scsi_rigid_disk_page *rigid_disk_page; 3975 uint32_t sectors_per_cylinder; 3976 uint64_t cylinders; 3977#ifndef __XSCALE__ 3978 int shift; 3979#endif /* !__XSCALE__ */ 3980 3981 KASSERT(page_index->subpage == SMS_SUBPAGE_PAGE_0, 3982 ("subpage %#x for page %#x is incorrect!", 3983 page_index->subpage, page_code)); 3984 3985 /* 3986 * Rotation rate and sectors per track are set 3987 * above. We calculate the cylinders here based on 3988 * capacity. Due to the number of heads and 3989 * sectors per track we're using, smaller arrays 3990 * may turn out to have 0 cylinders. Linux and 3991 * FreeBSD don't pay attention to these mode pages 3992 * to figure out capacity, but Solaris does. It 3993 * seems to deal with 0 cylinders just fine, and 3994 * works out a fake geometry based on the capacity. 3995 */ 3996 memcpy(&lun->mode_pages.rigid_disk_page[ 3997 CTL_PAGE_DEFAULT], &rigid_disk_page_default, 3998 sizeof(rigid_disk_page_default)); 3999 memcpy(&lun->mode_pages.rigid_disk_page[ 4000 CTL_PAGE_CHANGEABLE],&rigid_disk_page_changeable, 4001 sizeof(rigid_disk_page_changeable)); 4002 4003 sectors_per_cylinder = CTL_DEFAULT_SECTORS_PER_TRACK * 4004 CTL_DEFAULT_HEADS; 4005 4006 /* 4007 * The divide method here will be more accurate, 4008 * probably, but results in floating point being 4009 * used in the kernel on i386 (__udivdi3()). On the 4010 * XScale, though, __udivdi3() is implemented in 4011 * software. 4012 * 4013 * The shift method for cylinder calculation is 4014 * accurate if sectors_per_cylinder is a power of 4015 * 2. Otherwise it might be slightly off -- you 4016 * might have a bit of a truncation problem. 4017 */ 4018#ifdef __XSCALE__ 4019 cylinders = (lun->be_lun->maxlba + 1) / 4020 sectors_per_cylinder; 4021#else 4022 for (shift = 31; shift > 0; shift--) { 4023 if (sectors_per_cylinder & (1 << shift)) 4024 break; 4025 } 4026 cylinders = (lun->be_lun->maxlba + 1) >> shift; 4027#endif 4028 4029 /* 4030 * We've basically got 3 bytes, or 24 bits for the 4031 * cylinder size in the mode page. If we're over, 4032 * just round down to 2^24. 4033 */ 4034 if (cylinders > 0xffffff) 4035 cylinders = 0xffffff; 4036 4037 rigid_disk_page = &lun->mode_pages.rigid_disk_page[ 4038 CTL_PAGE_DEFAULT]; 4039 scsi_ulto3b(cylinders, rigid_disk_page->cylinders); 4040 4041 if ((value = ctl_get_opt(&lun->be_lun->options, 4042 "rpm")) != NULL) { 4043 scsi_ulto2b(strtol(value, NULL, 0), 4044 rigid_disk_page->rotation_rate); 4045 } 4046 4047 memcpy(&lun->mode_pages.rigid_disk_page[CTL_PAGE_CURRENT], 4048 &lun->mode_pages.rigid_disk_page[CTL_PAGE_DEFAULT], 4049 sizeof(rigid_disk_page_default)); 4050 memcpy(&lun->mode_pages.rigid_disk_page[CTL_PAGE_SAVED], 4051 &lun->mode_pages.rigid_disk_page[CTL_PAGE_DEFAULT], 4052 sizeof(rigid_disk_page_default)); 4053 4054 page_index->page_data = 4055 (uint8_t *)lun->mode_pages.rigid_disk_page; 4056 break; 4057 } 4058 case SMS_VERIFY_ERROR_RECOVERY_PAGE: { 4059 KASSERT(page_index->subpage == SMS_SUBPAGE_PAGE_0, 4060 ("subpage %#x for page %#x is incorrect!", 4061 page_index->subpage, page_code)); 4062 memcpy(&lun->mode_pages.verify_er_page[CTL_PAGE_CURRENT], 4063 &verify_er_page_default, 4064 sizeof(verify_er_page_default)); 4065 memcpy(&lun->mode_pages.verify_er_page[CTL_PAGE_CHANGEABLE], 4066 &verify_er_page_changeable, 4067 sizeof(verify_er_page_changeable)); 4068 memcpy(&lun->mode_pages.verify_er_page[CTL_PAGE_DEFAULT], 4069 &verify_er_page_default, 4070 sizeof(verify_er_page_default)); 4071 memcpy(&lun->mode_pages.verify_er_page[CTL_PAGE_SAVED], 4072 &verify_er_page_default, 4073 sizeof(verify_er_page_default)); 4074 page_index->page_data = 4075 (uint8_t *)lun->mode_pages.verify_er_page; 4076 break; 4077 } 4078 case SMS_CACHING_PAGE: { 4079 struct scsi_caching_page *caching_page; 4080 4081 KASSERT(page_index->subpage == SMS_SUBPAGE_PAGE_0, 4082 ("subpage %#x for page %#x is incorrect!", 4083 page_index->subpage, page_code)); 4084 memcpy(&lun->mode_pages.caching_page[CTL_PAGE_DEFAULT], 4085 &caching_page_default, 4086 sizeof(caching_page_default)); 4087 memcpy(&lun->mode_pages.caching_page[ 4088 CTL_PAGE_CHANGEABLE], &caching_page_changeable, 4089 sizeof(caching_page_changeable)); 4090 memcpy(&lun->mode_pages.caching_page[CTL_PAGE_SAVED], 4091 &caching_page_default, 4092 sizeof(caching_page_default)); 4093 caching_page = &lun->mode_pages.caching_page[ 4094 CTL_PAGE_SAVED]; 4095 value = ctl_get_opt(&lun->be_lun->options, "writecache"); 4096 if (value != NULL && strcmp(value, "off") == 0) 4097 caching_page->flags1 &= ~SCP_WCE; 4098 value = ctl_get_opt(&lun->be_lun->options, "readcache"); 4099 if (value != NULL && strcmp(value, "off") == 0) 4100 caching_page->flags1 |= SCP_RCD; 4101 memcpy(&lun->mode_pages.caching_page[CTL_PAGE_CURRENT], 4102 &lun->mode_pages.caching_page[CTL_PAGE_SAVED], 4103 sizeof(caching_page_default)); 4104 page_index->page_data = 4105 (uint8_t *)lun->mode_pages.caching_page; 4106 break; 4107 } 4108 case SMS_CONTROL_MODE_PAGE: { 4109 switch (page_index->subpage) { 4110 case SMS_SUBPAGE_PAGE_0: { 4111 struct scsi_control_page *control_page; 4112 4113 memcpy(&lun->mode_pages.control_page[ 4114 CTL_PAGE_DEFAULT], 4115 &control_page_default, 4116 sizeof(control_page_default)); 4117 memcpy(&lun->mode_pages.control_page[ 4118 CTL_PAGE_CHANGEABLE], 4119 &control_page_changeable, 4120 sizeof(control_page_changeable)); 4121 memcpy(&lun->mode_pages.control_page[ 4122 CTL_PAGE_SAVED], 4123 &control_page_default, 4124 sizeof(control_page_default)); 4125 control_page = &lun->mode_pages.control_page[ 4126 CTL_PAGE_SAVED]; 4127 value = ctl_get_opt(&lun->be_lun->options, 4128 "reordering"); 4129 if (value != NULL && 4130 strcmp(value, "unrestricted") == 0) { 4131 control_page->queue_flags &= 4132 ~SCP_QUEUE_ALG_MASK; 4133 control_page->queue_flags |= 4134 SCP_QUEUE_ALG_UNRESTRICTED; 4135 } 4136 memcpy(&lun->mode_pages.control_page[ 4137 CTL_PAGE_CURRENT], 4138 &lun->mode_pages.control_page[ 4139 CTL_PAGE_SAVED], 4140 sizeof(control_page_default)); 4141 page_index->page_data = 4142 (uint8_t *)lun->mode_pages.control_page; 4143 break; 4144 } 4145 case 0x01: 4146 memcpy(&lun->mode_pages.control_ext_page[ 4147 CTL_PAGE_DEFAULT], 4148 &control_ext_page_default, 4149 sizeof(control_ext_page_default)); 4150 memcpy(&lun->mode_pages.control_ext_page[ 4151 CTL_PAGE_CHANGEABLE], 4152 &control_ext_page_changeable, 4153 sizeof(control_ext_page_changeable)); 4154 memcpy(&lun->mode_pages.control_ext_page[ 4155 CTL_PAGE_SAVED], 4156 &control_ext_page_default, 4157 sizeof(control_ext_page_default)); 4158 memcpy(&lun->mode_pages.control_ext_page[ 4159 CTL_PAGE_CURRENT], 4160 &lun->mode_pages.control_ext_page[ 4161 CTL_PAGE_SAVED], 4162 sizeof(control_ext_page_default)); 4163 page_index->page_data = 4164 (uint8_t *)lun->mode_pages.control_ext_page; 4165 break; 4166 default: 4167 panic("subpage %#x for page %#x is incorrect!", 4168 page_index->subpage, page_code); 4169 } 4170 break; 4171 } 4172 case SMS_INFO_EXCEPTIONS_PAGE: { 4173 switch (page_index->subpage) { 4174 case SMS_SUBPAGE_PAGE_0: 4175 memcpy(&lun->mode_pages.ie_page[CTL_PAGE_CURRENT], 4176 &ie_page_default, 4177 sizeof(ie_page_default)); 4178 memcpy(&lun->mode_pages.ie_page[ 4179 CTL_PAGE_CHANGEABLE], &ie_page_changeable, 4180 sizeof(ie_page_changeable)); 4181 memcpy(&lun->mode_pages.ie_page[CTL_PAGE_DEFAULT], 4182 &ie_page_default, 4183 sizeof(ie_page_default)); 4184 memcpy(&lun->mode_pages.ie_page[CTL_PAGE_SAVED], 4185 &ie_page_default, 4186 sizeof(ie_page_default)); 4187 page_index->page_data = 4188 (uint8_t *)lun->mode_pages.ie_page; 4189 break; 4190 case 0x02: { 4191 struct ctl_logical_block_provisioning_page *page; 4192 4193 memcpy(&lun->mode_pages.lbp_page[CTL_PAGE_DEFAULT], 4194 &lbp_page_default, 4195 sizeof(lbp_page_default)); 4196 memcpy(&lun->mode_pages.lbp_page[ 4197 CTL_PAGE_CHANGEABLE], &lbp_page_changeable, 4198 sizeof(lbp_page_changeable)); 4199 memcpy(&lun->mode_pages.lbp_page[CTL_PAGE_SAVED], 4200 &lbp_page_default, 4201 sizeof(lbp_page_default)); 4202 page = &lun->mode_pages.lbp_page[CTL_PAGE_SAVED]; 4203 value = ctl_get_opt(&lun->be_lun->options, 4204 "avail-threshold"); 4205 if (value != NULL && 4206 ctl_expand_number(value, &ival) == 0) { 4207 page->descr[0].flags |= SLBPPD_ENABLED | 4208 SLBPPD_ARMING_DEC; 4209 if (lun->be_lun->blocksize) 4210 ival /= lun->be_lun->blocksize; 4211 else 4212 ival /= 512; 4213 scsi_ulto4b(ival >> CTL_LBP_EXPONENT, 4214 page->descr[0].count); 4215 } 4216 value = ctl_get_opt(&lun->be_lun->options, 4217 "used-threshold"); 4218 if (value != NULL && 4219 ctl_expand_number(value, &ival) == 0) { 4220 page->descr[1].flags |= SLBPPD_ENABLED | 4221 SLBPPD_ARMING_INC; 4222 if (lun->be_lun->blocksize) 4223 ival /= lun->be_lun->blocksize; 4224 else 4225 ival /= 512; 4226 scsi_ulto4b(ival >> CTL_LBP_EXPONENT, 4227 page->descr[1].count); 4228 } 4229 value = ctl_get_opt(&lun->be_lun->options, 4230 "pool-avail-threshold"); 4231 if (value != NULL && 4232 ctl_expand_number(value, &ival) == 0) { 4233 page->descr[2].flags |= SLBPPD_ENABLED | 4234 SLBPPD_ARMING_DEC; 4235 if (lun->be_lun->blocksize) 4236 ival /= lun->be_lun->blocksize; 4237 else 4238 ival /= 512; 4239 scsi_ulto4b(ival >> CTL_LBP_EXPONENT, 4240 page->descr[2].count); 4241 } 4242 value = ctl_get_opt(&lun->be_lun->options, 4243 "pool-used-threshold"); 4244 if (value != NULL && 4245 ctl_expand_number(value, &ival) == 0) { 4246 page->descr[3].flags |= SLBPPD_ENABLED | 4247 SLBPPD_ARMING_INC; 4248 if (lun->be_lun->blocksize) 4249 ival /= lun->be_lun->blocksize; 4250 else 4251 ival /= 512; 4252 scsi_ulto4b(ival >> CTL_LBP_EXPONENT, 4253 page->descr[3].count); 4254 } 4255 memcpy(&lun->mode_pages.lbp_page[CTL_PAGE_CURRENT], 4256 &lun->mode_pages.lbp_page[CTL_PAGE_SAVED], 4257 sizeof(lbp_page_default)); 4258 page_index->page_data = 4259 (uint8_t *)lun->mode_pages.lbp_page; 4260 break; 4261 } 4262 default: 4263 panic("subpage %#x for page %#x is incorrect!", 4264 page_index->subpage, page_code); 4265 } 4266 break; 4267 } 4268 case SMS_CDDVD_CAPS_PAGE:{ 4269 KASSERT(page_index->subpage == SMS_SUBPAGE_PAGE_0, 4270 ("subpage %#x for page %#x is incorrect!", 4271 page_index->subpage, page_code)); 4272 memcpy(&lun->mode_pages.cddvd_page[CTL_PAGE_DEFAULT], 4273 &cddvd_page_default, 4274 sizeof(cddvd_page_default)); 4275 memcpy(&lun->mode_pages.cddvd_page[ 4276 CTL_PAGE_CHANGEABLE], &cddvd_page_changeable, 4277 sizeof(cddvd_page_changeable)); 4278 memcpy(&lun->mode_pages.cddvd_page[CTL_PAGE_SAVED], 4279 &cddvd_page_default, 4280 sizeof(cddvd_page_default)); 4281 memcpy(&lun->mode_pages.cddvd_page[CTL_PAGE_CURRENT], 4282 &lun->mode_pages.cddvd_page[CTL_PAGE_SAVED], 4283 sizeof(cddvd_page_default)); 4284 page_index->page_data = 4285 (uint8_t *)lun->mode_pages.cddvd_page; 4286 break; 4287 } 4288 default: 4289 panic("invalid page code value %#x", page_code); 4290 } 4291 } 4292 4293 return (CTL_RETVAL_COMPLETE); 4294} 4295 4296static int 4297ctl_init_log_page_index(struct ctl_lun *lun) 4298{ 4299 struct ctl_page_index *page_index; 4300 int i, j, k, prev; 4301 4302 memcpy(&lun->log_pages.index, log_page_index_template, 4303 sizeof(log_page_index_template)); 4304 4305 prev = -1; 4306 for (i = 0, j = 0, k = 0; i < CTL_NUM_LOG_PAGES; i++) { 4307 4308 page_index = &lun->log_pages.index[i]; 4309 if (lun->be_lun->lun_type == T_DIRECT && 4310 (page_index->page_flags & CTL_PAGE_FLAG_DIRECT) == 0) 4311 continue; 4312 if (lun->be_lun->lun_type == T_PROCESSOR && 4313 (page_index->page_flags & CTL_PAGE_FLAG_PROC) == 0) 4314 continue; 4315 if (lun->be_lun->lun_type == T_CDROM && 4316 (page_index->page_flags & CTL_PAGE_FLAG_CDROM) == 0) 4317 continue; 4318 4319 if (page_index->page_code == SLS_LOGICAL_BLOCK_PROVISIONING && 4320 lun->backend->lun_attr == NULL) 4321 continue; 4322 4323 if (page_index->page_code != prev) { 4324 lun->log_pages.pages_page[j] = page_index->page_code; 4325 prev = page_index->page_code; 4326 j++; 4327 } 4328 lun->log_pages.subpages_page[k*2] = page_index->page_code; 4329 lun->log_pages.subpages_page[k*2+1] = page_index->subpage; 4330 k++; 4331 } 4332 lun->log_pages.index[0].page_data = &lun->log_pages.pages_page[0]; 4333 lun->log_pages.index[0].page_len = j; 4334 lun->log_pages.index[1].page_data = &lun->log_pages.subpages_page[0]; 4335 lun->log_pages.index[1].page_len = k * 2; 4336 lun->log_pages.index[2].page_data = &lun->log_pages.lbp_page[0]; 4337 lun->log_pages.index[2].page_len = 12*CTL_NUM_LBP_PARAMS; 4338 lun->log_pages.index[3].page_data = (uint8_t *)&lun->log_pages.stat_page; 4339 lun->log_pages.index[3].page_len = sizeof(lun->log_pages.stat_page); 4340 lun->log_pages.index[4].page_data = (uint8_t *)&lun->log_pages.ie_page; 4341 lun->log_pages.index[4].page_len = sizeof(lun->log_pages.ie_page); 4342 4343 return (CTL_RETVAL_COMPLETE); 4344} 4345 4346static int 4347hex2bin(const char *str, uint8_t *buf, int buf_size) 4348{ 4349 int i; 4350 u_char c; 4351 4352 memset(buf, 0, buf_size); 4353 while (isspace(str[0])) 4354 str++; 4355 if (str[0] == '0' && (str[1] == 'x' || str[1] == 'X')) 4356 str += 2; 4357 buf_size *= 2; 4358 for (i = 0; str[i] != 0 && i < buf_size; i++) { 4359 while (str[i] == '-') /* Skip dashes in UUIDs. */ 4360 str++; 4361 c = str[i]; 4362 if (isdigit(c)) 4363 c -= '0'; 4364 else if (isalpha(c)) 4365 c -= isupper(c) ? 'A' - 10 : 'a' - 10; 4366 else 4367 break; 4368 if (c >= 16) 4369 break; 4370 if ((i & 1) == 0) 4371 buf[i / 2] |= (c << 4); 4372 else 4373 buf[i / 2] |= c; 4374 } 4375 return ((i + 1) / 2); 4376} 4377 4378/* 4379 * LUN allocation. 4380 * 4381 * Requirements: 4382 * - caller allocates and zeros LUN storage, or passes in a NULL LUN if he 4383 * wants us to allocate the LUN and he can block. 4384 * - ctl_softc is always set 4385 * - be_lun is set if the LUN has a backend (needed for disk LUNs) 4386 * 4387 * Returns 0 for success, non-zero (errno) for failure. 4388 */ 4389static int 4390ctl_alloc_lun(struct ctl_softc *ctl_softc, struct ctl_lun *ctl_lun, 4391 struct ctl_be_lun *const be_lun) 4392{ 4393 struct ctl_lun *nlun, *lun; 4394 struct scsi_vpd_id_descriptor *desc; 4395 struct scsi_vpd_id_t10 *t10id; 4396 const char *eui, *naa, *scsiname, *uuid, *vendor, *value; 4397 int lun_number, i, lun_malloced; 4398 int devidlen, idlen1, idlen2 = 0, len; 4399 4400 if (be_lun == NULL) 4401 return (EINVAL); 4402 4403 /* 4404 * We currently only support Direct Access or Processor LUN types. 4405 */ 4406 switch (be_lun->lun_type) { 4407 case T_DIRECT: 4408 case T_PROCESSOR: 4409 case T_CDROM: 4410 break; 4411 case T_SEQUENTIAL: 4412 case T_CHANGER: 4413 default: 4414 be_lun->lun_config_status(be_lun->be_lun, 4415 CTL_LUN_CONFIG_FAILURE); 4416 break; 4417 } 4418 if (ctl_lun == NULL) { 4419 lun = malloc(sizeof(*lun), M_CTL, M_WAITOK); 4420 lun_malloced = 1; 4421 } else { 4422 lun_malloced = 0; 4423 lun = ctl_lun; 4424 } 4425 4426 memset(lun, 0, sizeof(*lun)); 4427 if (lun_malloced) 4428 lun->flags = CTL_LUN_MALLOCED; 4429 4430 /* Generate LUN ID. */ 4431 devidlen = max(CTL_DEVID_MIN_LEN, 4432 strnlen(be_lun->device_id, CTL_DEVID_LEN)); 4433 idlen1 = sizeof(*t10id) + devidlen; 4434 len = sizeof(struct scsi_vpd_id_descriptor) + idlen1; 4435 scsiname = ctl_get_opt(&be_lun->options, "scsiname"); 4436 if (scsiname != NULL) { 4437 idlen2 = roundup2(strlen(scsiname) + 1, 4); 4438 len += sizeof(struct scsi_vpd_id_descriptor) + idlen2; 4439 } 4440 eui = ctl_get_opt(&be_lun->options, "eui"); 4441 if (eui != NULL) { 4442 len += sizeof(struct scsi_vpd_id_descriptor) + 16; 4443 } 4444 naa = ctl_get_opt(&be_lun->options, "naa"); 4445 if (naa != NULL) { 4446 len += sizeof(struct scsi_vpd_id_descriptor) + 16; 4447 } 4448 uuid = ctl_get_opt(&be_lun->options, "uuid"); 4449 if (uuid != NULL) { 4450 len += sizeof(struct scsi_vpd_id_descriptor) + 18; 4451 } 4452 lun->lun_devid = malloc(sizeof(struct ctl_devid) + len, 4453 M_CTL, M_WAITOK | M_ZERO); 4454 desc = (struct scsi_vpd_id_descriptor *)lun->lun_devid->data; 4455 desc->proto_codeset = SVPD_ID_CODESET_ASCII; 4456 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | SVPD_ID_TYPE_T10; 4457 desc->length = idlen1; 4458 t10id = (struct scsi_vpd_id_t10 *)&desc->identifier[0]; 4459 memset(t10id->vendor, ' ', sizeof(t10id->vendor)); 4460 if ((vendor = ctl_get_opt(&be_lun->options, "vendor")) == NULL) { 4461 strncpy((char *)t10id->vendor, CTL_VENDOR, sizeof(t10id->vendor)); 4462 } else { 4463 strncpy(t10id->vendor, vendor, 4464 min(sizeof(t10id->vendor), strlen(vendor))); 4465 } 4466 strncpy((char *)t10id->vendor_spec_id, 4467 (char *)be_lun->device_id, devidlen); 4468 if (scsiname != NULL) { 4469 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 4470 desc->length); 4471 desc->proto_codeset = SVPD_ID_CODESET_UTF8; 4472 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | 4473 SVPD_ID_TYPE_SCSI_NAME; 4474 desc->length = idlen2; 4475 strlcpy(desc->identifier, scsiname, idlen2); 4476 } 4477 if (eui != NULL) { 4478 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 4479 desc->length); 4480 desc->proto_codeset = SVPD_ID_CODESET_BINARY; 4481 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | 4482 SVPD_ID_TYPE_EUI64; 4483 desc->length = hex2bin(eui, desc->identifier, 16); 4484 desc->length = desc->length > 12 ? 16 : 4485 (desc->length > 8 ? 12 : 8); 4486 len -= 16 - desc->length; 4487 } 4488 if (naa != NULL) { 4489 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 4490 desc->length); 4491 desc->proto_codeset = SVPD_ID_CODESET_BINARY; 4492 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | 4493 SVPD_ID_TYPE_NAA; 4494 desc->length = hex2bin(naa, desc->identifier, 16); 4495 desc->length = desc->length > 8 ? 16 : 8; 4496 len -= 16 - desc->length; 4497 } 4498 if (uuid != NULL) { 4499 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 4500 desc->length); 4501 desc->proto_codeset = SVPD_ID_CODESET_BINARY; 4502 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | 4503 SVPD_ID_TYPE_UUID; 4504 desc->identifier[0] = 0x10; 4505 hex2bin(uuid, &desc->identifier[2], 16); 4506 desc->length = 18; 4507 } 4508 lun->lun_devid->len = len; 4509 4510 mtx_lock(&ctl_softc->ctl_lock); 4511 /* 4512 * See if the caller requested a particular LUN number. If so, see 4513 * if it is available. Otherwise, allocate the first available LUN. 4514 */ 4515 if (be_lun->flags & CTL_LUN_FLAG_ID_REQ) { 4516 if ((be_lun->req_lun_id > (CTL_MAX_LUNS - 1)) 4517 || (ctl_is_set(ctl_softc->ctl_lun_mask, be_lun->req_lun_id))) { 4518 mtx_unlock(&ctl_softc->ctl_lock); 4519 if (be_lun->req_lun_id > (CTL_MAX_LUNS - 1)) { 4520 printf("ctl: requested LUN ID %d is higher " 4521 "than CTL_MAX_LUNS - 1 (%d)\n", 4522 be_lun->req_lun_id, CTL_MAX_LUNS - 1); 4523 } else { 4524 /* 4525 * XXX KDM return an error, or just assign 4526 * another LUN ID in this case?? 4527 */ 4528 printf("ctl: requested LUN ID %d is already " 4529 "in use\n", be_lun->req_lun_id); 4530 } 4531 if (lun->flags & CTL_LUN_MALLOCED) 4532 free(lun, M_CTL); 4533 be_lun->lun_config_status(be_lun->be_lun, 4534 CTL_LUN_CONFIG_FAILURE); 4535 return (ENOSPC); 4536 } 4537 lun_number = be_lun->req_lun_id; 4538 } else { 4539 lun_number = ctl_ffz(ctl_softc->ctl_lun_mask, 0, CTL_MAX_LUNS); 4540 if (lun_number == -1) { 4541 mtx_unlock(&ctl_softc->ctl_lock); 4542 printf("ctl: can't allocate LUN, out of LUNs\n"); 4543 if (lun->flags & CTL_LUN_MALLOCED) 4544 free(lun, M_CTL); 4545 be_lun->lun_config_status(be_lun->be_lun, 4546 CTL_LUN_CONFIG_FAILURE); 4547 return (ENOSPC); 4548 } 4549 } 4550 ctl_set_mask(ctl_softc->ctl_lun_mask, lun_number); 4551 4552 mtx_init(&lun->lun_lock, "CTL LUN", NULL, MTX_DEF); 4553 lun->lun = lun_number; 4554 lun->be_lun = be_lun; 4555 /* 4556 * The processor LUN is always enabled. Disk LUNs come on line 4557 * disabled, and must be enabled by the backend. 4558 */ 4559 lun->flags |= CTL_LUN_DISABLED; 4560 lun->backend = be_lun->be; 4561 be_lun->ctl_lun = lun; 4562 be_lun->lun_id = lun_number; 4563 atomic_add_int(&be_lun->be->num_luns, 1); 4564 if (be_lun->flags & CTL_LUN_FLAG_EJECTED) 4565 lun->flags |= CTL_LUN_EJECTED; 4566 if (be_lun->flags & CTL_LUN_FLAG_NO_MEDIA) 4567 lun->flags |= CTL_LUN_NO_MEDIA; 4568 if (be_lun->flags & CTL_LUN_FLAG_STOPPED) 4569 lun->flags |= CTL_LUN_STOPPED; 4570 4571 if (be_lun->flags & CTL_LUN_FLAG_PRIMARY) 4572 lun->flags |= CTL_LUN_PRIMARY_SC; 4573 4574 value = ctl_get_opt(&be_lun->options, "removable"); 4575 if (value != NULL) { 4576 if (strcmp(value, "on") == 0) 4577 lun->flags |= CTL_LUN_REMOVABLE; 4578 } else if (be_lun->lun_type == T_CDROM) 4579 lun->flags |= CTL_LUN_REMOVABLE; 4580 4581 lun->ctl_softc = ctl_softc; 4582#ifdef CTL_TIME_IO 4583 lun->last_busy = getsbinuptime(); 4584#endif 4585 TAILQ_INIT(&lun->ooa_queue); 4586 TAILQ_INIT(&lun->blocked_queue); 4587 STAILQ_INIT(&lun->error_list); 4588 lun->ie_reported = 1; 4589 callout_init_mtx(&lun->ie_callout, &lun->lun_lock, 0); 4590 ctl_tpc_lun_init(lun); 4591 4592 /* 4593 * Initialize the mode and log page index. 4594 */ 4595 ctl_init_page_index(lun); 4596 ctl_init_log_page_index(lun); 4597 4598 /* 4599 * Now, before we insert this lun on the lun list, set the lun 4600 * inventory changed UA for all other luns. 4601 */ 4602 STAILQ_FOREACH(nlun, &ctl_softc->lun_list, links) { 4603 mtx_lock(&nlun->lun_lock); 4604 ctl_est_ua_all(nlun, -1, CTL_UA_LUN_CHANGE); 4605 mtx_unlock(&nlun->lun_lock); 4606 } 4607 4608 STAILQ_INSERT_TAIL(&ctl_softc->lun_list, lun, links); 4609 4610 ctl_softc->ctl_luns[lun_number] = lun; 4611 4612 ctl_softc->num_luns++; 4613 4614 /* Setup statistics gathering */ 4615 lun->stats.device_type = be_lun->lun_type; 4616 lun->stats.lun_number = lun_number; 4617 lun->stats.blocksize = be_lun->blocksize; 4618 if (be_lun->blocksize == 0) 4619 lun->stats.flags = CTL_LUN_STATS_NO_BLOCKSIZE; 4620 for (i = 0;i < CTL_MAX_PORTS;i++) 4621 lun->stats.ports[i].targ_port = i; 4622 4623 mtx_unlock(&ctl_softc->ctl_lock); 4624 4625 lun->be_lun->lun_config_status(lun->be_lun->be_lun, CTL_LUN_CONFIG_OK); 4626 return (0); 4627} 4628 4629/* 4630 * Delete a LUN. 4631 * Assumptions: 4632 * - LUN has already been marked invalid and any pending I/O has been taken 4633 * care of. 4634 */ 4635static int 4636ctl_free_lun(struct ctl_lun *lun) 4637{ 4638 struct ctl_softc *softc; 4639 struct ctl_lun *nlun; 4640 int i; 4641 4642 softc = lun->ctl_softc; 4643 4644 mtx_assert(&softc->ctl_lock, MA_OWNED); 4645 4646 STAILQ_REMOVE(&softc->lun_list, lun, ctl_lun, links); 4647 4648 ctl_clear_mask(softc->ctl_lun_mask, lun->lun); 4649 4650 softc->ctl_luns[lun->lun] = NULL; 4651 4652 if (!TAILQ_EMPTY(&lun->ooa_queue)) 4653 panic("Freeing a LUN %p with outstanding I/O!!\n", lun); 4654 4655 softc->num_luns--; 4656 4657 /* 4658 * Tell the backend to free resources, if this LUN has a backend. 4659 */ 4660 atomic_subtract_int(&lun->be_lun->be->num_luns, 1); 4661 lun->be_lun->lun_shutdown(lun->be_lun->be_lun); 4662 4663 lun->ie_reportcnt = UINT32_MAX; 4664 callout_drain(&lun->ie_callout); 4665 4666 ctl_tpc_lun_shutdown(lun); 4667 mtx_destroy(&lun->lun_lock); 4668 free(lun->lun_devid, M_CTL); 4669 for (i = 0; i < CTL_MAX_PORTS; i++) 4670 free(lun->pending_ua[i], M_CTL); 4671 for (i = 0; i < CTL_MAX_PORTS; i++) 4672 free(lun->pr_keys[i], M_CTL); 4673 free(lun->write_buffer, M_CTL); 4674 if (lun->flags & CTL_LUN_MALLOCED) 4675 free(lun, M_CTL); 4676 4677 STAILQ_FOREACH(nlun, &softc->lun_list, links) { 4678 mtx_lock(&nlun->lun_lock); 4679 ctl_est_ua_all(nlun, -1, CTL_UA_LUN_CHANGE); 4680 mtx_unlock(&nlun->lun_lock); 4681 } 4682 4683 return (0); 4684} 4685 4686static void 4687ctl_create_lun(struct ctl_be_lun *be_lun) 4688{ 4689 4690 /* 4691 * ctl_alloc_lun() should handle all potential failure cases. 4692 */ 4693 ctl_alloc_lun(control_softc, NULL, be_lun); 4694} 4695 4696int 4697ctl_add_lun(struct ctl_be_lun *be_lun) 4698{ 4699 struct ctl_softc *softc = control_softc; 4700 4701 mtx_lock(&softc->ctl_lock); 4702 STAILQ_INSERT_TAIL(&softc->pending_lun_queue, be_lun, links); 4703 mtx_unlock(&softc->ctl_lock); 4704 wakeup(&softc->pending_lun_queue); 4705 4706 return (0); 4707} 4708 4709int 4710ctl_enable_lun(struct ctl_be_lun *be_lun) 4711{ 4712 struct ctl_softc *softc; 4713 struct ctl_port *port, *nport; 4714 struct ctl_lun *lun; 4715 int retval; 4716 4717 lun = (struct ctl_lun *)be_lun->ctl_lun; 4718 softc = lun->ctl_softc; 4719 4720 mtx_lock(&softc->ctl_lock); 4721 mtx_lock(&lun->lun_lock); 4722 if ((lun->flags & CTL_LUN_DISABLED) == 0) { 4723 /* 4724 * eh? Why did we get called if the LUN is already 4725 * enabled? 4726 */ 4727 mtx_unlock(&lun->lun_lock); 4728 mtx_unlock(&softc->ctl_lock); 4729 return (0); 4730 } 4731 lun->flags &= ~CTL_LUN_DISABLED; 4732 mtx_unlock(&lun->lun_lock); 4733 4734 STAILQ_FOREACH_SAFE(port, &softc->port_list, links, nport) { 4735 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0 || 4736 port->lun_map != NULL || port->lun_enable == NULL) 4737 continue; 4738 4739 /* 4740 * Drop the lock while we call the FETD's enable routine. 4741 * This can lead to a callback into CTL (at least in the 4742 * case of the internal initiator frontend. 4743 */ 4744 mtx_unlock(&softc->ctl_lock); 4745 retval = port->lun_enable(port->targ_lun_arg, lun->lun); 4746 mtx_lock(&softc->ctl_lock); 4747 if (retval != 0) { 4748 printf("%s: FETD %s port %d returned error " 4749 "%d for lun_enable on lun %jd\n", 4750 __func__, port->port_name, port->targ_port, 4751 retval, (intmax_t)lun->lun); 4752 } 4753 } 4754 4755 mtx_unlock(&softc->ctl_lock); 4756 ctl_isc_announce_lun(lun); 4757 4758 return (0); 4759} 4760 4761int 4762ctl_disable_lun(struct ctl_be_lun *be_lun) 4763{ 4764 struct ctl_softc *softc; 4765 struct ctl_port *port; 4766 struct ctl_lun *lun; 4767 int retval; 4768 4769 lun = (struct ctl_lun *)be_lun->ctl_lun; 4770 softc = lun->ctl_softc; 4771 4772 mtx_lock(&softc->ctl_lock); 4773 mtx_lock(&lun->lun_lock); 4774 if (lun->flags & CTL_LUN_DISABLED) { 4775 mtx_unlock(&lun->lun_lock); 4776 mtx_unlock(&softc->ctl_lock); 4777 return (0); 4778 } 4779 lun->flags |= CTL_LUN_DISABLED; 4780 mtx_unlock(&lun->lun_lock); 4781 4782 STAILQ_FOREACH(port, &softc->port_list, links) { 4783 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0 || 4784 port->lun_map != NULL || port->lun_disable == NULL) 4785 continue; 4786 4787 /* 4788 * Drop the lock before we call the frontend's disable 4789 * routine, to avoid lock order reversals. 4790 * 4791 * XXX KDM what happens if the frontend list changes while 4792 * we're traversing it? It's unlikely, but should be handled. 4793 */ 4794 mtx_unlock(&softc->ctl_lock); 4795 retval = port->lun_disable(port->targ_lun_arg, lun->lun); 4796 mtx_lock(&softc->ctl_lock); 4797 if (retval != 0) { 4798 printf("%s: FETD %s port %d returned error " 4799 "%d for lun_disable on lun %jd\n", 4800 __func__, port->port_name, port->targ_port, 4801 retval, (intmax_t)lun->lun); 4802 } 4803 } 4804 4805 mtx_unlock(&softc->ctl_lock); 4806 ctl_isc_announce_lun(lun); 4807 4808 return (0); 4809} 4810 4811int 4812ctl_start_lun(struct ctl_be_lun *be_lun) 4813{ 4814 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 4815 4816 mtx_lock(&lun->lun_lock); 4817 lun->flags &= ~CTL_LUN_STOPPED; 4818 mtx_unlock(&lun->lun_lock); 4819 return (0); 4820} 4821 4822int 4823ctl_stop_lun(struct ctl_be_lun *be_lun) 4824{ 4825 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 4826 4827 mtx_lock(&lun->lun_lock); 4828 lun->flags |= CTL_LUN_STOPPED; 4829 mtx_unlock(&lun->lun_lock); 4830 return (0); 4831} 4832 4833int 4834ctl_lun_no_media(struct ctl_be_lun *be_lun) 4835{ 4836 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 4837 4838 mtx_lock(&lun->lun_lock); 4839 lun->flags |= CTL_LUN_NO_MEDIA; 4840 mtx_unlock(&lun->lun_lock); 4841 return (0); 4842} 4843 4844int 4845ctl_lun_has_media(struct ctl_be_lun *be_lun) 4846{ 4847 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 4848 union ctl_ha_msg msg; 4849 4850 mtx_lock(&lun->lun_lock); 4851 lun->flags &= ~(CTL_LUN_NO_MEDIA | CTL_LUN_EJECTED); 4852 if (lun->flags & CTL_LUN_REMOVABLE) 4853 ctl_est_ua_all(lun, -1, CTL_UA_MEDIUM_CHANGE); 4854 mtx_unlock(&lun->lun_lock); 4855 if ((lun->flags & CTL_LUN_REMOVABLE) && 4856 lun->ctl_softc->ha_mode == CTL_HA_MODE_XFER) { 4857 bzero(&msg.ua, sizeof(msg.ua)); 4858 msg.hdr.msg_type = CTL_MSG_UA; 4859 msg.hdr.nexus.initid = -1; 4860 msg.hdr.nexus.targ_port = -1; 4861 msg.hdr.nexus.targ_lun = lun->lun; 4862 msg.hdr.nexus.targ_mapped_lun = lun->lun; 4863 msg.ua.ua_all = 1; 4864 msg.ua.ua_set = 1; 4865 msg.ua.ua_type = CTL_UA_MEDIUM_CHANGE; 4866 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, sizeof(msg.ua), 4867 M_WAITOK); 4868 } 4869 return (0); 4870} 4871 4872int 4873ctl_lun_ejected(struct ctl_be_lun *be_lun) 4874{ 4875 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 4876 4877 mtx_lock(&lun->lun_lock); 4878 lun->flags |= CTL_LUN_EJECTED; 4879 mtx_unlock(&lun->lun_lock); 4880 return (0); 4881} 4882 4883int 4884ctl_lun_primary(struct ctl_be_lun *be_lun) 4885{ 4886 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 4887 4888 mtx_lock(&lun->lun_lock); 4889 lun->flags |= CTL_LUN_PRIMARY_SC; 4890 ctl_est_ua_all(lun, -1, CTL_UA_ASYM_ACC_CHANGE); 4891 mtx_unlock(&lun->lun_lock); 4892 ctl_isc_announce_lun(lun); 4893 return (0); 4894} 4895 4896int 4897ctl_lun_secondary(struct ctl_be_lun *be_lun) 4898{ 4899 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 4900 4901 mtx_lock(&lun->lun_lock); 4902 lun->flags &= ~CTL_LUN_PRIMARY_SC; 4903 ctl_est_ua_all(lun, -1, CTL_UA_ASYM_ACC_CHANGE); 4904 mtx_unlock(&lun->lun_lock); 4905 ctl_isc_announce_lun(lun); 4906 return (0); 4907} 4908 4909int 4910ctl_invalidate_lun(struct ctl_be_lun *be_lun) 4911{ 4912 struct ctl_softc *softc; 4913 struct ctl_lun *lun; 4914 4915 lun = (struct ctl_lun *)be_lun->ctl_lun; 4916 softc = lun->ctl_softc; 4917 4918 mtx_lock(&lun->lun_lock); 4919 4920 /* 4921 * The LUN needs to be disabled before it can be marked invalid. 4922 */ 4923 if ((lun->flags & CTL_LUN_DISABLED) == 0) { 4924 mtx_unlock(&lun->lun_lock); 4925 return (-1); 4926 } 4927 /* 4928 * Mark the LUN invalid. 4929 */ 4930 lun->flags |= CTL_LUN_INVALID; 4931 4932 /* 4933 * If there is nothing in the OOA queue, go ahead and free the LUN. 4934 * If we have something in the OOA queue, we'll free it when the 4935 * last I/O completes. 4936 */ 4937 if (TAILQ_EMPTY(&lun->ooa_queue)) { 4938 mtx_unlock(&lun->lun_lock); 4939 mtx_lock(&softc->ctl_lock); 4940 ctl_free_lun(lun); 4941 mtx_unlock(&softc->ctl_lock); 4942 } else 4943 mtx_unlock(&lun->lun_lock); 4944 4945 return (0); 4946} 4947 4948void 4949ctl_lun_capacity_changed(struct ctl_be_lun *be_lun) 4950{ 4951 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 4952 union ctl_ha_msg msg; 4953 4954 mtx_lock(&lun->lun_lock); 4955 ctl_est_ua_all(lun, -1, CTL_UA_CAPACITY_CHANGE); 4956 mtx_unlock(&lun->lun_lock); 4957 if (lun->ctl_softc->ha_mode == CTL_HA_MODE_XFER) { 4958 /* Send msg to other side. */ 4959 bzero(&msg.ua, sizeof(msg.ua)); 4960 msg.hdr.msg_type = CTL_MSG_UA; 4961 msg.hdr.nexus.initid = -1; 4962 msg.hdr.nexus.targ_port = -1; 4963 msg.hdr.nexus.targ_lun = lun->lun; 4964 msg.hdr.nexus.targ_mapped_lun = lun->lun; 4965 msg.ua.ua_all = 1; 4966 msg.ua.ua_set = 1; 4967 msg.ua.ua_type = CTL_UA_CAPACITY_CHANGE; 4968 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, sizeof(msg.ua), 4969 M_WAITOK); 4970 } 4971} 4972 4973/* 4974 * Backend "memory move is complete" callback for requests that never 4975 * make it down to say RAIDCore's configuration code. 4976 */ 4977int 4978ctl_config_move_done(union ctl_io *io) 4979{ 4980 int retval; 4981 4982 CTL_DEBUG_PRINT(("ctl_config_move_done\n")); 4983 KASSERT(io->io_hdr.io_type == CTL_IO_SCSI, 4984 ("Config I/O type isn't CTL_IO_SCSI (%d)!", io->io_hdr.io_type)); 4985 4986 if ((io->io_hdr.port_status != 0) && 4987 ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE || 4988 (io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS)) { 4989 /* 4990 * For hardware error sense keys, the sense key 4991 * specific value is defined to be a retry count, 4992 * but we use it to pass back an internal FETD 4993 * error code. XXX KDM Hopefully the FETD is only 4994 * using 16 bits for an error code, since that's 4995 * all the space we have in the sks field. 4996 */ 4997 ctl_set_internal_failure(&io->scsiio, 4998 /*sks_valid*/ 1, 4999 /*retry_count*/ 5000 io->io_hdr.port_status); 5001 } 5002 5003 if (ctl_debug & CTL_DEBUG_CDB_DATA) 5004 ctl_data_print(io); 5005 if (((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_IN) || 5006 ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE && 5007 (io->io_hdr.status & CTL_STATUS_MASK) != CTL_SUCCESS) || 5008 ((io->io_hdr.flags & CTL_FLAG_ABORT) != 0)) { 5009 /* 5010 * XXX KDM just assuming a single pointer here, and not a 5011 * S/G list. If we start using S/G lists for config data, 5012 * we'll need to know how to clean them up here as well. 5013 */ 5014 if (io->io_hdr.flags & CTL_FLAG_ALLOCATED) 5015 free(io->scsiio.kern_data_ptr, M_CTL); 5016 ctl_done(io); 5017 retval = CTL_RETVAL_COMPLETE; 5018 } else { 5019 /* 5020 * XXX KDM now we need to continue data movement. Some 5021 * options: 5022 * - call ctl_scsiio() again? We don't do this for data 5023 * writes, because for those at least we know ahead of 5024 * time where the write will go and how long it is. For 5025 * config writes, though, that information is largely 5026 * contained within the write itself, thus we need to 5027 * parse out the data again. 5028 * 5029 * - Call some other function once the data is in? 5030 */ 5031 5032 /* 5033 * XXX KDM call ctl_scsiio() again for now, and check flag 5034 * bits to see whether we're allocated or not. 5035 */ 5036 retval = ctl_scsiio(&io->scsiio); 5037 } 5038 return (retval); 5039} 5040 5041/* 5042 * This gets called by a backend driver when it is done with a 5043 * data_submit method. 5044 */ 5045void 5046ctl_data_submit_done(union ctl_io *io) 5047{ 5048 /* 5049 * If the IO_CONT flag is set, we need to call the supplied 5050 * function to continue processing the I/O, instead of completing 5051 * the I/O just yet. 5052 * 5053 * If there is an error, though, we don't want to keep processing. 5054 * Instead, just send status back to the initiator. 5055 */ 5056 if ((io->io_hdr.flags & CTL_FLAG_IO_CONT) && 5057 (io->io_hdr.flags & CTL_FLAG_ABORT) == 0 && 5058 ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE || 5059 (io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS)) { 5060 io->scsiio.io_cont(io); 5061 return; 5062 } 5063 ctl_done(io); 5064} 5065 5066/* 5067 * This gets called by a backend driver when it is done with a 5068 * configuration write. 5069 */ 5070void 5071ctl_config_write_done(union ctl_io *io) 5072{ 5073 uint8_t *buf; 5074 5075 /* 5076 * If the IO_CONT flag is set, we need to call the supplied 5077 * function to continue processing the I/O, instead of completing 5078 * the I/O just yet. 5079 * 5080 * If there is an error, though, we don't want to keep processing. 5081 * Instead, just send status back to the initiator. 5082 */ 5083 if ((io->io_hdr.flags & CTL_FLAG_IO_CONT) && 5084 (io->io_hdr.flags & CTL_FLAG_ABORT) == 0 && 5085 ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE || 5086 (io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS)) { 5087 io->scsiio.io_cont(io); 5088 return; 5089 } 5090 /* 5091 * Since a configuration write can be done for commands that actually 5092 * have data allocated, like write buffer, and commands that have 5093 * no data, like start/stop unit, we need to check here. 5094 */ 5095 if (io->io_hdr.flags & CTL_FLAG_ALLOCATED) 5096 buf = io->scsiio.kern_data_ptr; 5097 else 5098 buf = NULL; 5099 ctl_done(io); 5100 if (buf) 5101 free(buf, M_CTL); 5102} 5103 5104void 5105ctl_config_read_done(union ctl_io *io) 5106{ 5107 uint8_t *buf; 5108 5109 /* 5110 * If there is some error -- we are done, skip data transfer. 5111 */ 5112 if ((io->io_hdr.flags & CTL_FLAG_ABORT) != 0 || 5113 ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE && 5114 (io->io_hdr.status & CTL_STATUS_MASK) != CTL_SUCCESS)) { 5115 if (io->io_hdr.flags & CTL_FLAG_ALLOCATED) 5116 buf = io->scsiio.kern_data_ptr; 5117 else 5118 buf = NULL; 5119 ctl_done(io); 5120 if (buf) 5121 free(buf, M_CTL); 5122 return; 5123 } 5124 5125 /* 5126 * If the IO_CONT flag is set, we need to call the supplied 5127 * function to continue processing the I/O, instead of completing 5128 * the I/O just yet. 5129 */ 5130 if (io->io_hdr.flags & CTL_FLAG_IO_CONT) { 5131 io->scsiio.io_cont(io); 5132 return; 5133 } 5134 5135 ctl_datamove(io); 5136} 5137 5138/* 5139 * SCSI release command. 5140 */ 5141int 5142ctl_scsi_release(struct ctl_scsiio *ctsio) 5143{ 5144 struct ctl_lun *lun; 5145 uint32_t residx; 5146 5147 CTL_DEBUG_PRINT(("ctl_scsi_release\n")); 5148 5149 residx = ctl_get_initindex(&ctsio->io_hdr.nexus); 5150 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5151 5152 /* 5153 * XXX KDM right now, we only support LUN reservation. We don't 5154 * support 3rd party reservations, or extent reservations, which 5155 * might actually need the parameter list. If we've gotten this 5156 * far, we've got a LUN reservation. Anything else got kicked out 5157 * above. So, according to SPC, ignore the length. 5158 */ 5159 5160 mtx_lock(&lun->lun_lock); 5161 5162 /* 5163 * According to SPC, it is not an error for an intiator to attempt 5164 * to release a reservation on a LUN that isn't reserved, or that 5165 * is reserved by another initiator. The reservation can only be 5166 * released, though, by the initiator who made it or by one of 5167 * several reset type events. 5168 */ 5169 if ((lun->flags & CTL_LUN_RESERVED) && (lun->res_idx == residx)) 5170 lun->flags &= ~CTL_LUN_RESERVED; 5171 5172 mtx_unlock(&lun->lun_lock); 5173 5174 ctl_set_success(ctsio); 5175 ctl_done((union ctl_io *)ctsio); 5176 return (CTL_RETVAL_COMPLETE); 5177} 5178 5179int 5180ctl_scsi_reserve(struct ctl_scsiio *ctsio) 5181{ 5182 struct ctl_lun *lun; 5183 uint32_t residx; 5184 5185 CTL_DEBUG_PRINT(("ctl_reserve\n")); 5186 5187 residx = ctl_get_initindex(&ctsio->io_hdr.nexus); 5188 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5189 5190 /* 5191 * XXX KDM right now, we only support LUN reservation. We don't 5192 * support 3rd party reservations, or extent reservations, which 5193 * might actually need the parameter list. If we've gotten this 5194 * far, we've got a LUN reservation. Anything else got kicked out 5195 * above. So, according to SPC, ignore the length. 5196 */ 5197 5198 mtx_lock(&lun->lun_lock); 5199 if ((lun->flags & CTL_LUN_RESERVED) && (lun->res_idx != residx)) { 5200 ctl_set_reservation_conflict(ctsio); 5201 goto bailout; 5202 } 5203 5204 /* SPC-3 exceptions to SPC-2 RESERVE and RELEASE behavior. */ 5205 if (lun->flags & CTL_LUN_PR_RESERVED) { 5206 ctl_set_success(ctsio); 5207 goto bailout; 5208 } 5209 5210 lun->flags |= CTL_LUN_RESERVED; 5211 lun->res_idx = residx; 5212 ctl_set_success(ctsio); 5213 5214bailout: 5215 mtx_unlock(&lun->lun_lock); 5216 ctl_done((union ctl_io *)ctsio); 5217 return (CTL_RETVAL_COMPLETE); 5218} 5219 5220int 5221ctl_start_stop(struct ctl_scsiio *ctsio) 5222{ 5223 struct scsi_start_stop_unit *cdb; 5224 struct ctl_lun *lun; 5225 int retval; 5226 5227 CTL_DEBUG_PRINT(("ctl_start_stop\n")); 5228 5229 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5230 cdb = (struct scsi_start_stop_unit *)ctsio->cdb; 5231 5232 if ((cdb->how & SSS_PC_MASK) == 0) { 5233 if ((lun->flags & CTL_LUN_PR_RESERVED) && 5234 (cdb->how & SSS_START) == 0) { 5235 uint32_t residx; 5236 5237 residx = ctl_get_initindex(&ctsio->io_hdr.nexus); 5238 if (ctl_get_prkey(lun, residx) == 0 || 5239 (lun->pr_res_idx != residx && lun->pr_res_type < 4)) { 5240 5241 ctl_set_reservation_conflict(ctsio); 5242 ctl_done((union ctl_io *)ctsio); 5243 return (CTL_RETVAL_COMPLETE); 5244 } 5245 } 5246 5247 if ((cdb->how & SSS_LOEJ) && 5248 (lun->flags & CTL_LUN_REMOVABLE) == 0) { 5249 ctl_set_invalid_field(ctsio, 5250 /*sks_valid*/ 1, 5251 /*command*/ 1, 5252 /*field*/ 4, 5253 /*bit_valid*/ 1, 5254 /*bit*/ 1); 5255 ctl_done((union ctl_io *)ctsio); 5256 return (CTL_RETVAL_COMPLETE); 5257 } 5258 5259 if ((cdb->how & SSS_START) == 0 && (cdb->how & SSS_LOEJ) && 5260 lun->prevent_count > 0) { 5261 /* "Medium removal prevented" */ 5262 ctl_set_sense(ctsio, /*current_error*/ 1, 5263 /*sense_key*/(lun->flags & CTL_LUN_NO_MEDIA) ? 5264 SSD_KEY_NOT_READY : SSD_KEY_ILLEGAL_REQUEST, 5265 /*asc*/ 0x53, /*ascq*/ 0x02, SSD_ELEM_NONE); 5266 ctl_done((union ctl_io *)ctsio); 5267 return (CTL_RETVAL_COMPLETE); 5268 } 5269 } 5270 5271 retval = lun->backend->config_write((union ctl_io *)ctsio); 5272 return (retval); 5273} 5274 5275int 5276ctl_prevent_allow(struct ctl_scsiio *ctsio) 5277{ 5278 struct ctl_lun *lun; 5279 struct scsi_prevent *cdb; 5280 int retval; 5281 uint32_t initidx; 5282 5283 CTL_DEBUG_PRINT(("ctl_prevent_allow\n")); 5284 5285 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5286 cdb = (struct scsi_prevent *)ctsio->cdb; 5287 5288 if ((lun->flags & CTL_LUN_REMOVABLE) == 0) { 5289 ctl_set_invalid_opcode(ctsio); 5290 ctl_done((union ctl_io *)ctsio); 5291 return (CTL_RETVAL_COMPLETE); 5292 } 5293 5294 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 5295 mtx_lock(&lun->lun_lock); 5296 if ((cdb->how & PR_PREVENT) && 5297 ctl_is_set(lun->prevent, initidx) == 0) { 5298 ctl_set_mask(lun->prevent, initidx); 5299 lun->prevent_count++; 5300 } else if ((cdb->how & PR_PREVENT) == 0 && 5301 ctl_is_set(lun->prevent, initidx)) { 5302 ctl_clear_mask(lun->prevent, initidx); 5303 lun->prevent_count--; 5304 } 5305 mtx_unlock(&lun->lun_lock); 5306 retval = lun->backend->config_write((union ctl_io *)ctsio); 5307 return (retval); 5308} 5309 5310/* 5311 * We support the SYNCHRONIZE CACHE command (10 and 16 byte versions), but 5312 * we don't really do anything with the LBA and length fields if the user 5313 * passes them in. Instead we'll just flush out the cache for the entire 5314 * LUN. 5315 */ 5316int 5317ctl_sync_cache(struct ctl_scsiio *ctsio) 5318{ 5319 struct ctl_lun *lun; 5320 struct ctl_softc *softc; 5321 struct ctl_lba_len_flags *lbalen; 5322 uint64_t starting_lba; 5323 uint32_t block_count; 5324 int retval; 5325 uint8_t byte2; 5326 5327 CTL_DEBUG_PRINT(("ctl_sync_cache\n")); 5328 5329 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5330 softc = lun->ctl_softc; 5331 retval = 0; 5332 5333 switch (ctsio->cdb[0]) { 5334 case SYNCHRONIZE_CACHE: { 5335 struct scsi_sync_cache *cdb; 5336 cdb = (struct scsi_sync_cache *)ctsio->cdb; 5337 5338 starting_lba = scsi_4btoul(cdb->begin_lba); 5339 block_count = scsi_2btoul(cdb->lb_count); 5340 byte2 = cdb->byte2; 5341 break; 5342 } 5343 case SYNCHRONIZE_CACHE_16: { 5344 struct scsi_sync_cache_16 *cdb; 5345 cdb = (struct scsi_sync_cache_16 *)ctsio->cdb; 5346 5347 starting_lba = scsi_8btou64(cdb->begin_lba); 5348 block_count = scsi_4btoul(cdb->lb_count); 5349 byte2 = cdb->byte2; 5350 break; 5351 } 5352 default: 5353 ctl_set_invalid_opcode(ctsio); 5354 ctl_done((union ctl_io *)ctsio); 5355 goto bailout; 5356 break; /* NOTREACHED */ 5357 } 5358 5359 /* 5360 * We check the LBA and length, but don't do anything with them. 5361 * A SYNCHRONIZE CACHE will cause the entire cache for this lun to 5362 * get flushed. This check will just help satisfy anyone who wants 5363 * to see an error for an out of range LBA. 5364 */ 5365 if ((starting_lba + block_count) > (lun->be_lun->maxlba + 1)) { 5366 ctl_set_lba_out_of_range(ctsio, 5367 MAX(starting_lba, lun->be_lun->maxlba + 1)); 5368 ctl_done((union ctl_io *)ctsio); 5369 goto bailout; 5370 } 5371 5372 lbalen = (struct ctl_lba_len_flags *)&ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 5373 lbalen->lba = starting_lba; 5374 lbalen->len = block_count; 5375 lbalen->flags = byte2; 5376 retval = lun->backend->config_write((union ctl_io *)ctsio); 5377 5378bailout: 5379 return (retval); 5380} 5381 5382int 5383ctl_format(struct ctl_scsiio *ctsio) 5384{ 5385 struct scsi_format *cdb; 5386 struct ctl_lun *lun; 5387 int length, defect_list_len; 5388 5389 CTL_DEBUG_PRINT(("ctl_format\n")); 5390 5391 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5392 5393 cdb = (struct scsi_format *)ctsio->cdb; 5394 5395 length = 0; 5396 if (cdb->byte2 & SF_FMTDATA) { 5397 if (cdb->byte2 & SF_LONGLIST) 5398 length = sizeof(struct scsi_format_header_long); 5399 else 5400 length = sizeof(struct scsi_format_header_short); 5401 } 5402 5403 if (((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) 5404 && (length > 0)) { 5405 ctsio->kern_data_ptr = malloc(length, M_CTL, M_WAITOK); 5406 ctsio->kern_data_len = length; 5407 ctsio->kern_total_len = length; 5408 ctsio->kern_data_resid = 0; 5409 ctsio->kern_rel_offset = 0; 5410 ctsio->kern_sg_entries = 0; 5411 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5412 ctsio->be_move_done = ctl_config_move_done; 5413 ctl_datamove((union ctl_io *)ctsio); 5414 5415 return (CTL_RETVAL_COMPLETE); 5416 } 5417 5418 defect_list_len = 0; 5419 5420 if (cdb->byte2 & SF_FMTDATA) { 5421 if (cdb->byte2 & SF_LONGLIST) { 5422 struct scsi_format_header_long *header; 5423 5424 header = (struct scsi_format_header_long *) 5425 ctsio->kern_data_ptr; 5426 5427 defect_list_len = scsi_4btoul(header->defect_list_len); 5428 if (defect_list_len != 0) { 5429 ctl_set_invalid_field(ctsio, 5430 /*sks_valid*/ 1, 5431 /*command*/ 0, 5432 /*field*/ 2, 5433 /*bit_valid*/ 0, 5434 /*bit*/ 0); 5435 goto bailout; 5436 } 5437 } else { 5438 struct scsi_format_header_short *header; 5439 5440 header = (struct scsi_format_header_short *) 5441 ctsio->kern_data_ptr; 5442 5443 defect_list_len = scsi_2btoul(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 } 5454 } 5455 5456 ctl_set_success(ctsio); 5457bailout: 5458 5459 if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) { 5460 free(ctsio->kern_data_ptr, M_CTL); 5461 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED; 5462 } 5463 5464 ctl_done((union ctl_io *)ctsio); 5465 return (CTL_RETVAL_COMPLETE); 5466} 5467 5468int 5469ctl_read_buffer(struct ctl_scsiio *ctsio) 5470{ 5471 struct ctl_lun *lun; 5472 uint64_t buffer_offset; 5473 uint32_t len; 5474 uint8_t byte2; 5475 static uint8_t descr[4]; 5476 static uint8_t echo_descr[4] = { 0 }; 5477 5478 CTL_DEBUG_PRINT(("ctl_read_buffer\n")); 5479 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5480 switch (ctsio->cdb[0]) { 5481 case READ_BUFFER: { 5482 struct scsi_read_buffer *cdb; 5483 5484 cdb = (struct scsi_read_buffer *)ctsio->cdb; 5485 buffer_offset = scsi_3btoul(cdb->offset); 5486 len = scsi_3btoul(cdb->length); 5487 byte2 = cdb->byte2; 5488 break; 5489 } 5490 case READ_BUFFER_16: { 5491 struct scsi_read_buffer_16 *cdb; 5492 5493 cdb = (struct scsi_read_buffer_16 *)ctsio->cdb; 5494 buffer_offset = scsi_8btou64(cdb->offset); 5495 len = scsi_4btoul(cdb->length); 5496 byte2 = cdb->byte2; 5497 break; 5498 } 5499 default: /* This shouldn't happen. */ 5500 ctl_set_invalid_opcode(ctsio); 5501 ctl_done((union ctl_io *)ctsio); 5502 return (CTL_RETVAL_COMPLETE); 5503 } 5504 5505 if (buffer_offset > CTL_WRITE_BUFFER_SIZE || 5506 buffer_offset + len > CTL_WRITE_BUFFER_SIZE) { 5507 ctl_set_invalid_field(ctsio, 5508 /*sks_valid*/ 1, 5509 /*command*/ 1, 5510 /*field*/ 6, 5511 /*bit_valid*/ 0, 5512 /*bit*/ 0); 5513 ctl_done((union ctl_io *)ctsio); 5514 return (CTL_RETVAL_COMPLETE); 5515 } 5516 5517 if ((byte2 & RWB_MODE) == RWB_MODE_DESCR) { 5518 descr[0] = 0; 5519 scsi_ulto3b(CTL_WRITE_BUFFER_SIZE, &descr[1]); 5520 ctsio->kern_data_ptr = descr; 5521 len = min(len, sizeof(descr)); 5522 } else if ((byte2 & RWB_MODE) == RWB_MODE_ECHO_DESCR) { 5523 ctsio->kern_data_ptr = echo_descr; 5524 len = min(len, sizeof(echo_descr)); 5525 } else { 5526 if (lun->write_buffer == NULL) { 5527 lun->write_buffer = malloc(CTL_WRITE_BUFFER_SIZE, 5528 M_CTL, M_WAITOK); 5529 } 5530 ctsio->kern_data_ptr = lun->write_buffer + buffer_offset; 5531 } 5532 ctsio->kern_data_len = len; 5533 ctsio->kern_total_len = len; 5534 ctsio->kern_data_resid = 0; 5535 ctsio->kern_rel_offset = 0; 5536 ctsio->kern_sg_entries = 0; 5537 ctl_set_success(ctsio); 5538 ctsio->be_move_done = ctl_config_move_done; 5539 ctl_datamove((union ctl_io *)ctsio); 5540 return (CTL_RETVAL_COMPLETE); 5541} 5542 5543int 5544ctl_write_buffer(struct ctl_scsiio *ctsio) 5545{ 5546 struct scsi_write_buffer *cdb; 5547 struct ctl_lun *lun; 5548 int buffer_offset, len; 5549 5550 CTL_DEBUG_PRINT(("ctl_write_buffer\n")); 5551 5552 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5553 cdb = (struct scsi_write_buffer *)ctsio->cdb; 5554 5555 len = scsi_3btoul(cdb->length); 5556 buffer_offset = scsi_3btoul(cdb->offset); 5557 5558 if (buffer_offset + len > CTL_WRITE_BUFFER_SIZE) { 5559 ctl_set_invalid_field(ctsio, 5560 /*sks_valid*/ 1, 5561 /*command*/ 1, 5562 /*field*/ 6, 5563 /*bit_valid*/ 0, 5564 /*bit*/ 0); 5565 ctl_done((union ctl_io *)ctsio); 5566 return (CTL_RETVAL_COMPLETE); 5567 } 5568 5569 /* 5570 * If we've got a kernel request that hasn't been malloced yet, 5571 * malloc it and tell the caller the data buffer is here. 5572 */ 5573 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 5574 if (lun->write_buffer == NULL) { 5575 lun->write_buffer = malloc(CTL_WRITE_BUFFER_SIZE, 5576 M_CTL, M_WAITOK); 5577 } 5578 ctsio->kern_data_ptr = lun->write_buffer + buffer_offset; 5579 ctsio->kern_data_len = len; 5580 ctsio->kern_total_len = len; 5581 ctsio->kern_data_resid = 0; 5582 ctsio->kern_rel_offset = 0; 5583 ctsio->kern_sg_entries = 0; 5584 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5585 ctsio->be_move_done = ctl_config_move_done; 5586 ctl_datamove((union ctl_io *)ctsio); 5587 5588 return (CTL_RETVAL_COMPLETE); 5589 } 5590 5591 ctl_set_success(ctsio); 5592 ctl_done((union ctl_io *)ctsio); 5593 return (CTL_RETVAL_COMPLETE); 5594} 5595 5596int 5597ctl_write_same(struct ctl_scsiio *ctsio) 5598{ 5599 struct ctl_lun *lun; 5600 struct ctl_lba_len_flags *lbalen; 5601 uint64_t lba; 5602 uint32_t num_blocks; 5603 int len, retval; 5604 uint8_t byte2; 5605 5606 CTL_DEBUG_PRINT(("ctl_write_same\n")); 5607 5608 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5609 5610 switch (ctsio->cdb[0]) { 5611 case WRITE_SAME_10: { 5612 struct scsi_write_same_10 *cdb; 5613 5614 cdb = (struct scsi_write_same_10 *)ctsio->cdb; 5615 5616 lba = scsi_4btoul(cdb->addr); 5617 num_blocks = scsi_2btoul(cdb->length); 5618 byte2 = cdb->byte2; 5619 break; 5620 } 5621 case WRITE_SAME_16: { 5622 struct scsi_write_same_16 *cdb; 5623 5624 cdb = (struct scsi_write_same_16 *)ctsio->cdb; 5625 5626 lba = scsi_8btou64(cdb->addr); 5627 num_blocks = scsi_4btoul(cdb->length); 5628 byte2 = cdb->byte2; 5629 break; 5630 } 5631 default: 5632 /* 5633 * We got a command we don't support. This shouldn't 5634 * happen, commands should be filtered out above us. 5635 */ 5636 ctl_set_invalid_opcode(ctsio); 5637 ctl_done((union ctl_io *)ctsio); 5638 5639 return (CTL_RETVAL_COMPLETE); 5640 break; /* NOTREACHED */ 5641 } 5642 5643 /* ANCHOR flag can be used only together with UNMAP */ 5644 if ((byte2 & SWS_UNMAP) == 0 && (byte2 & SWS_ANCHOR) != 0) { 5645 ctl_set_invalid_field(ctsio, /*sks_valid*/ 1, 5646 /*command*/ 1, /*field*/ 1, /*bit_valid*/ 1, /*bit*/ 0); 5647 ctl_done((union ctl_io *)ctsio); 5648 return (CTL_RETVAL_COMPLETE); 5649 } 5650 5651 /* 5652 * The first check is to make sure we're in bounds, the second 5653 * check is to catch wrap-around problems. If the lba + num blocks 5654 * is less than the lba, then we've wrapped around and the block 5655 * range is invalid anyway. 5656 */ 5657 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 5658 || ((lba + num_blocks) < lba)) { 5659 ctl_set_lba_out_of_range(ctsio, 5660 MAX(lba, lun->be_lun->maxlba + 1)); 5661 ctl_done((union ctl_io *)ctsio); 5662 return (CTL_RETVAL_COMPLETE); 5663 } 5664 5665 /* Zero number of blocks means "to the last logical block" */ 5666 if (num_blocks == 0) { 5667 if ((lun->be_lun->maxlba + 1) - lba > UINT32_MAX) { 5668 ctl_set_invalid_field(ctsio, 5669 /*sks_valid*/ 0, 5670 /*command*/ 1, 5671 /*field*/ 0, 5672 /*bit_valid*/ 0, 5673 /*bit*/ 0); 5674 ctl_done((union ctl_io *)ctsio); 5675 return (CTL_RETVAL_COMPLETE); 5676 } 5677 num_blocks = (lun->be_lun->maxlba + 1) - lba; 5678 } 5679 5680 len = lun->be_lun->blocksize; 5681 5682 /* 5683 * If we've got a kernel request that hasn't been malloced yet, 5684 * malloc it and tell the caller the data buffer is here. 5685 */ 5686 if ((byte2 & SWS_NDOB) == 0 && 5687 (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 5688 ctsio->kern_data_ptr = malloc(len, M_CTL, M_WAITOK); 5689 ctsio->kern_data_len = len; 5690 ctsio->kern_total_len = len; 5691 ctsio->kern_data_resid = 0; 5692 ctsio->kern_rel_offset = 0; 5693 ctsio->kern_sg_entries = 0; 5694 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5695 ctsio->be_move_done = ctl_config_move_done; 5696 ctl_datamove((union ctl_io *)ctsio); 5697 5698 return (CTL_RETVAL_COMPLETE); 5699 } 5700 5701 lbalen = (struct ctl_lba_len_flags *)&ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 5702 lbalen->lba = lba; 5703 lbalen->len = num_blocks; 5704 lbalen->flags = byte2; 5705 retval = lun->backend->config_write((union ctl_io *)ctsio); 5706 5707 return (retval); 5708} 5709 5710int 5711ctl_unmap(struct ctl_scsiio *ctsio) 5712{ 5713 struct ctl_lun *lun; 5714 struct scsi_unmap *cdb; 5715 struct ctl_ptr_len_flags *ptrlen; 5716 struct scsi_unmap_header *hdr; 5717 struct scsi_unmap_desc *buf, *end, *endnz, *range; 5718 uint64_t lba; 5719 uint32_t num_blocks; 5720 int len, retval; 5721 uint8_t byte2; 5722 5723 CTL_DEBUG_PRINT(("ctl_unmap\n")); 5724 5725 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5726 cdb = (struct scsi_unmap *)ctsio->cdb; 5727 5728 len = scsi_2btoul(cdb->length); 5729 byte2 = cdb->byte2; 5730 5731 /* 5732 * If we've got a kernel request that hasn't been malloced yet, 5733 * malloc it and tell the caller the data buffer is here. 5734 */ 5735 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 5736 ctsio->kern_data_ptr = malloc(len, M_CTL, M_WAITOK); 5737 ctsio->kern_data_len = len; 5738 ctsio->kern_total_len = len; 5739 ctsio->kern_data_resid = 0; 5740 ctsio->kern_rel_offset = 0; 5741 ctsio->kern_sg_entries = 0; 5742 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5743 ctsio->be_move_done = ctl_config_move_done; 5744 ctl_datamove((union ctl_io *)ctsio); 5745 5746 return (CTL_RETVAL_COMPLETE); 5747 } 5748 5749 len = ctsio->kern_total_len - ctsio->kern_data_resid; 5750 hdr = (struct scsi_unmap_header *)ctsio->kern_data_ptr; 5751 if (len < sizeof (*hdr) || 5752 len < (scsi_2btoul(hdr->length) + sizeof(hdr->length)) || 5753 len < (scsi_2btoul(hdr->desc_length) + sizeof (*hdr)) || 5754 scsi_2btoul(hdr->desc_length) % sizeof(*buf) != 0) { 5755 ctl_set_invalid_field(ctsio, 5756 /*sks_valid*/ 0, 5757 /*command*/ 0, 5758 /*field*/ 0, 5759 /*bit_valid*/ 0, 5760 /*bit*/ 0); 5761 goto done; 5762 } 5763 len = scsi_2btoul(hdr->desc_length); 5764 buf = (struct scsi_unmap_desc *)(hdr + 1); 5765 end = buf + len / sizeof(*buf); 5766 5767 endnz = buf; 5768 for (range = buf; range < end; range++) { 5769 lba = scsi_8btou64(range->lba); 5770 num_blocks = scsi_4btoul(range->length); 5771 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 5772 || ((lba + num_blocks) < lba)) { 5773 ctl_set_lba_out_of_range(ctsio, 5774 MAX(lba, lun->be_lun->maxlba + 1)); 5775 ctl_done((union ctl_io *)ctsio); 5776 return (CTL_RETVAL_COMPLETE); 5777 } 5778 if (num_blocks != 0) 5779 endnz = range + 1; 5780 } 5781 5782 /* 5783 * Block backend can not handle zero last range. 5784 * Filter it out and return if there is nothing left. 5785 */ 5786 len = (uint8_t *)endnz - (uint8_t *)buf; 5787 if (len == 0) { 5788 ctl_set_success(ctsio); 5789 goto done; 5790 } 5791 5792 mtx_lock(&lun->lun_lock); 5793 ptrlen = (struct ctl_ptr_len_flags *) 5794 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 5795 ptrlen->ptr = (void *)buf; 5796 ptrlen->len = len; 5797 ptrlen->flags = byte2; 5798 ctl_check_blocked(lun); 5799 mtx_unlock(&lun->lun_lock); 5800 5801 retval = lun->backend->config_write((union ctl_io *)ctsio); 5802 return (retval); 5803 5804done: 5805 if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) { 5806 free(ctsio->kern_data_ptr, M_CTL); 5807 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED; 5808 } 5809 ctl_done((union ctl_io *)ctsio); 5810 return (CTL_RETVAL_COMPLETE); 5811} 5812 5813int 5814ctl_default_page_handler(struct ctl_scsiio *ctsio, 5815 struct ctl_page_index *page_index, uint8_t *page_ptr) 5816{ 5817 struct ctl_lun *lun; 5818 uint8_t *current_cp, *saved_cp; 5819 int set_ua; 5820 uint32_t initidx; 5821 5822 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5823 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 5824 set_ua = 0; 5825 5826 current_cp = (page_index->page_data + (page_index->page_len * 5827 CTL_PAGE_CURRENT)); 5828 saved_cp = (page_index->page_data + (page_index->page_len * 5829 CTL_PAGE_SAVED)); 5830 5831 mtx_lock(&lun->lun_lock); 5832 if (memcmp(current_cp, page_ptr, page_index->page_len)) { 5833 memcpy(current_cp, page_ptr, page_index->page_len); 5834 memcpy(saved_cp, page_ptr, page_index->page_len); 5835 set_ua = 1; 5836 } 5837 if (set_ua != 0) 5838 ctl_est_ua_all(lun, initidx, CTL_UA_MODE_CHANGE); 5839 mtx_unlock(&lun->lun_lock); 5840 if (set_ua) { 5841 ctl_isc_announce_mode(lun, 5842 ctl_get_initindex(&ctsio->io_hdr.nexus), 5843 page_index->page_code, page_index->subpage); 5844 } 5845 return (CTL_RETVAL_COMPLETE); 5846} 5847 5848static void 5849ctl_ie_timer(void *arg) 5850{ 5851 struct ctl_lun *lun = arg; 5852 uint64_t t; 5853 5854 if (lun->ie_asc == 0) 5855 return; 5856 5857 if (lun->MODE_IE.mrie == SIEP_MRIE_UA) 5858 ctl_est_ua_all(lun, -1, CTL_UA_IE); 5859 else 5860 lun->ie_reported = 0; 5861 5862 if (lun->ie_reportcnt < scsi_4btoul(lun->MODE_IE.report_count)) { 5863 lun->ie_reportcnt++; 5864 t = scsi_4btoul(lun->MODE_IE.interval_timer); 5865 if (t == 0 || t == UINT32_MAX) 5866 t = 3000; /* 5 min */ 5867 callout_schedule(&lun->ie_callout, t * hz / 10); 5868 } 5869} 5870 5871int 5872ctl_ie_page_handler(struct ctl_scsiio *ctsio, 5873 struct ctl_page_index *page_index, uint8_t *page_ptr) 5874{ 5875 struct scsi_info_exceptions_page *pg; 5876 struct ctl_lun *lun; 5877 uint64_t t; 5878 5879 (void)ctl_default_page_handler(ctsio, page_index, page_ptr); 5880 5881 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5882 pg = (struct scsi_info_exceptions_page *)page_ptr; 5883 mtx_lock(&lun->lun_lock); 5884 if (pg->info_flags & SIEP_FLAGS_TEST) { 5885 lun->ie_asc = 0x5d; 5886 lun->ie_ascq = 0xff; 5887 if (pg->mrie == SIEP_MRIE_UA) { 5888 ctl_est_ua_all(lun, -1, CTL_UA_IE); 5889 lun->ie_reported = 1; 5890 } else { 5891 ctl_clr_ua_all(lun, -1, CTL_UA_IE); 5892 lun->ie_reported = -1; 5893 } 5894 lun->ie_reportcnt = 1; 5895 if (lun->ie_reportcnt < scsi_4btoul(pg->report_count)) { 5896 lun->ie_reportcnt++; 5897 t = scsi_4btoul(pg->interval_timer); 5898 if (t == 0 || t == UINT32_MAX) 5899 t = 3000; /* 5 min */ 5900 callout_reset(&lun->ie_callout, t * hz / 10, 5901 ctl_ie_timer, lun); 5902 } 5903 } else { 5904 lun->ie_asc = 0; 5905 lun->ie_ascq = 0; 5906 lun->ie_reported = 1; 5907 ctl_clr_ua_all(lun, -1, CTL_UA_IE); 5908 lun->ie_reportcnt = UINT32_MAX; 5909 callout_stop(&lun->ie_callout); 5910 } 5911 mtx_unlock(&lun->lun_lock); 5912 return (CTL_RETVAL_COMPLETE); 5913} 5914 5915static int 5916ctl_do_mode_select(union ctl_io *io) 5917{ 5918 struct scsi_mode_page_header *page_header; 5919 struct ctl_page_index *page_index; 5920 struct ctl_scsiio *ctsio; 5921 int page_len, page_len_offset, page_len_size; 5922 union ctl_modepage_info *modepage_info; 5923 struct ctl_lun *lun; 5924 int *len_left, *len_used; 5925 int retval, i; 5926 5927 ctsio = &io->scsiio; 5928 page_index = NULL; 5929 page_len = 0; 5930 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5931 5932 modepage_info = (union ctl_modepage_info *) 5933 ctsio->io_hdr.ctl_private[CTL_PRIV_MODEPAGE].bytes; 5934 len_left = &modepage_info->header.len_left; 5935 len_used = &modepage_info->header.len_used; 5936 5937do_next_page: 5938 5939 page_header = (struct scsi_mode_page_header *) 5940 (ctsio->kern_data_ptr + *len_used); 5941 5942 if (*len_left == 0) { 5943 free(ctsio->kern_data_ptr, M_CTL); 5944 ctl_set_success(ctsio); 5945 ctl_done((union ctl_io *)ctsio); 5946 return (CTL_RETVAL_COMPLETE); 5947 } else if (*len_left < sizeof(struct scsi_mode_page_header)) { 5948 5949 free(ctsio->kern_data_ptr, M_CTL); 5950 ctl_set_param_len_error(ctsio); 5951 ctl_done((union ctl_io *)ctsio); 5952 return (CTL_RETVAL_COMPLETE); 5953 5954 } else if ((page_header->page_code & SMPH_SPF) 5955 && (*len_left < sizeof(struct scsi_mode_page_header_sp))) { 5956 5957 free(ctsio->kern_data_ptr, M_CTL); 5958 ctl_set_param_len_error(ctsio); 5959 ctl_done((union ctl_io *)ctsio); 5960 return (CTL_RETVAL_COMPLETE); 5961 } 5962 5963 5964 /* 5965 * XXX KDM should we do something with the block descriptor? 5966 */ 5967 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 5968 page_index = &lun->mode_pages.index[i]; 5969 if (lun->be_lun->lun_type == T_DIRECT && 5970 (page_index->page_flags & CTL_PAGE_FLAG_DIRECT) == 0) 5971 continue; 5972 if (lun->be_lun->lun_type == T_PROCESSOR && 5973 (page_index->page_flags & CTL_PAGE_FLAG_PROC) == 0) 5974 continue; 5975 if (lun->be_lun->lun_type == T_CDROM && 5976 (page_index->page_flags & CTL_PAGE_FLAG_CDROM) == 0) 5977 continue; 5978 5979 if ((page_index->page_code & SMPH_PC_MASK) != 5980 (page_header->page_code & SMPH_PC_MASK)) 5981 continue; 5982 5983 /* 5984 * If neither page has a subpage code, then we've got a 5985 * match. 5986 */ 5987 if (((page_index->page_code & SMPH_SPF) == 0) 5988 && ((page_header->page_code & SMPH_SPF) == 0)) { 5989 page_len = page_header->page_length; 5990 break; 5991 } 5992 5993 /* 5994 * If both pages have subpages, then the subpage numbers 5995 * have to match. 5996 */ 5997 if ((page_index->page_code & SMPH_SPF) 5998 && (page_header->page_code & SMPH_SPF)) { 5999 struct scsi_mode_page_header_sp *sph; 6000 6001 sph = (struct scsi_mode_page_header_sp *)page_header; 6002 if (page_index->subpage == sph->subpage) { 6003 page_len = scsi_2btoul(sph->page_length); 6004 break; 6005 } 6006 } 6007 } 6008 6009 /* 6010 * If we couldn't find the page, or if we don't have a mode select 6011 * handler for it, send back an error to the user. 6012 */ 6013 if ((i >= CTL_NUM_MODE_PAGES) 6014 || (page_index->select_handler == NULL)) { 6015 ctl_set_invalid_field(ctsio, 6016 /*sks_valid*/ 1, 6017 /*command*/ 0, 6018 /*field*/ *len_used, 6019 /*bit_valid*/ 0, 6020 /*bit*/ 0); 6021 free(ctsio->kern_data_ptr, M_CTL); 6022 ctl_done((union ctl_io *)ctsio); 6023 return (CTL_RETVAL_COMPLETE); 6024 } 6025 6026 if (page_index->page_code & SMPH_SPF) { 6027 page_len_offset = 2; 6028 page_len_size = 2; 6029 } else { 6030 page_len_size = 1; 6031 page_len_offset = 1; 6032 } 6033 6034 /* 6035 * If the length the initiator gives us isn't the one we specify in 6036 * the mode page header, or if they didn't specify enough data in 6037 * the CDB to avoid truncating this page, kick out the request. 6038 */ 6039 if (page_len != page_index->page_len - page_len_offset - page_len_size) { 6040 ctl_set_invalid_field(ctsio, 6041 /*sks_valid*/ 1, 6042 /*command*/ 0, 6043 /*field*/ *len_used + page_len_offset, 6044 /*bit_valid*/ 0, 6045 /*bit*/ 0); 6046 free(ctsio->kern_data_ptr, M_CTL); 6047 ctl_done((union ctl_io *)ctsio); 6048 return (CTL_RETVAL_COMPLETE); 6049 } 6050 if (*len_left < page_index->page_len) { 6051 free(ctsio->kern_data_ptr, M_CTL); 6052 ctl_set_param_len_error(ctsio); 6053 ctl_done((union ctl_io *)ctsio); 6054 return (CTL_RETVAL_COMPLETE); 6055 } 6056 6057 /* 6058 * Run through the mode page, checking to make sure that the bits 6059 * the user changed are actually legal for him to change. 6060 */ 6061 for (i = 0; i < page_index->page_len; i++) { 6062 uint8_t *user_byte, *change_mask, *current_byte; 6063 int bad_bit; 6064 int j; 6065 6066 user_byte = (uint8_t *)page_header + i; 6067 change_mask = page_index->page_data + 6068 (page_index->page_len * CTL_PAGE_CHANGEABLE) + i; 6069 current_byte = page_index->page_data + 6070 (page_index->page_len * CTL_PAGE_CURRENT) + i; 6071 6072 /* 6073 * Check to see whether the user set any bits in this byte 6074 * that he is not allowed to set. 6075 */ 6076 if ((*user_byte & ~(*change_mask)) == 6077 (*current_byte & ~(*change_mask))) 6078 continue; 6079 6080 /* 6081 * Go through bit by bit to determine which one is illegal. 6082 */ 6083 bad_bit = 0; 6084 for (j = 7; j >= 0; j--) { 6085 if ((((1 << i) & ~(*change_mask)) & *user_byte) != 6086 (((1 << i) & ~(*change_mask)) & *current_byte)) { 6087 bad_bit = i; 6088 break; 6089 } 6090 } 6091 ctl_set_invalid_field(ctsio, 6092 /*sks_valid*/ 1, 6093 /*command*/ 0, 6094 /*field*/ *len_used + i, 6095 /*bit_valid*/ 1, 6096 /*bit*/ bad_bit); 6097 free(ctsio->kern_data_ptr, M_CTL); 6098 ctl_done((union ctl_io *)ctsio); 6099 return (CTL_RETVAL_COMPLETE); 6100 } 6101 6102 /* 6103 * Decrement these before we call the page handler, since we may 6104 * end up getting called back one way or another before the handler 6105 * returns to this context. 6106 */ 6107 *len_left -= page_index->page_len; 6108 *len_used += page_index->page_len; 6109 6110 retval = page_index->select_handler(ctsio, page_index, 6111 (uint8_t *)page_header); 6112 6113 /* 6114 * If the page handler returns CTL_RETVAL_QUEUED, then we need to 6115 * wait until this queued command completes to finish processing 6116 * the mode page. If it returns anything other than 6117 * CTL_RETVAL_COMPLETE (e.g. CTL_RETVAL_ERROR), then it should have 6118 * already set the sense information, freed the data pointer, and 6119 * completed the io for us. 6120 */ 6121 if (retval != CTL_RETVAL_COMPLETE) 6122 goto bailout_no_done; 6123 6124 /* 6125 * If the initiator sent us more than one page, parse the next one. 6126 */ 6127 if (*len_left > 0) 6128 goto do_next_page; 6129 6130 ctl_set_success(ctsio); 6131 free(ctsio->kern_data_ptr, M_CTL); 6132 ctl_done((union ctl_io *)ctsio); 6133 6134bailout_no_done: 6135 6136 return (CTL_RETVAL_COMPLETE); 6137 6138} 6139 6140int 6141ctl_mode_select(struct ctl_scsiio *ctsio) 6142{ 6143 int param_len, pf, sp; 6144 int header_size, bd_len; 6145 union ctl_modepage_info *modepage_info; 6146 6147 switch (ctsio->cdb[0]) { 6148 case MODE_SELECT_6: { 6149 struct scsi_mode_select_6 *cdb; 6150 6151 cdb = (struct scsi_mode_select_6 *)ctsio->cdb; 6152 6153 pf = (cdb->byte2 & SMS_PF) ? 1 : 0; 6154 sp = (cdb->byte2 & SMS_SP) ? 1 : 0; 6155 param_len = cdb->length; 6156 header_size = sizeof(struct scsi_mode_header_6); 6157 break; 6158 } 6159 case MODE_SELECT_10: { 6160 struct scsi_mode_select_10 *cdb; 6161 6162 cdb = (struct scsi_mode_select_10 *)ctsio->cdb; 6163 6164 pf = (cdb->byte2 & SMS_PF) ? 1 : 0; 6165 sp = (cdb->byte2 & SMS_SP) ? 1 : 0; 6166 param_len = scsi_2btoul(cdb->length); 6167 header_size = sizeof(struct scsi_mode_header_10); 6168 break; 6169 } 6170 default: 6171 ctl_set_invalid_opcode(ctsio); 6172 ctl_done((union ctl_io *)ctsio); 6173 return (CTL_RETVAL_COMPLETE); 6174 } 6175 6176 /* 6177 * From SPC-3: 6178 * "A parameter list length of zero indicates that the Data-Out Buffer 6179 * shall be empty. This condition shall not be considered as an error." 6180 */ 6181 if (param_len == 0) { 6182 ctl_set_success(ctsio); 6183 ctl_done((union ctl_io *)ctsio); 6184 return (CTL_RETVAL_COMPLETE); 6185 } 6186 6187 /* 6188 * Since we'll hit this the first time through, prior to 6189 * allocation, we don't need to free a data buffer here. 6190 */ 6191 if (param_len < header_size) { 6192 ctl_set_param_len_error(ctsio); 6193 ctl_done((union ctl_io *)ctsio); 6194 return (CTL_RETVAL_COMPLETE); 6195 } 6196 6197 /* 6198 * Allocate the data buffer and grab the user's data. In theory, 6199 * we shouldn't have to sanity check the parameter list length here 6200 * because the maximum size is 64K. We should be able to malloc 6201 * that much without too many problems. 6202 */ 6203 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 6204 ctsio->kern_data_ptr = malloc(param_len, M_CTL, M_WAITOK); 6205 ctsio->kern_data_len = param_len; 6206 ctsio->kern_total_len = param_len; 6207 ctsio->kern_data_resid = 0; 6208 ctsio->kern_rel_offset = 0; 6209 ctsio->kern_sg_entries = 0; 6210 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6211 ctsio->be_move_done = ctl_config_move_done; 6212 ctl_datamove((union ctl_io *)ctsio); 6213 6214 return (CTL_RETVAL_COMPLETE); 6215 } 6216 6217 switch (ctsio->cdb[0]) { 6218 case MODE_SELECT_6: { 6219 struct scsi_mode_header_6 *mh6; 6220 6221 mh6 = (struct scsi_mode_header_6 *)ctsio->kern_data_ptr; 6222 bd_len = mh6->blk_desc_len; 6223 break; 6224 } 6225 case MODE_SELECT_10: { 6226 struct scsi_mode_header_10 *mh10; 6227 6228 mh10 = (struct scsi_mode_header_10 *)ctsio->kern_data_ptr; 6229 bd_len = scsi_2btoul(mh10->blk_desc_len); 6230 break; 6231 } 6232 default: 6233 panic("%s: Invalid CDB type %#x", __func__, ctsio->cdb[0]); 6234 } 6235 6236 if (param_len < (header_size + bd_len)) { 6237 free(ctsio->kern_data_ptr, M_CTL); 6238 ctl_set_param_len_error(ctsio); 6239 ctl_done((union ctl_io *)ctsio); 6240 return (CTL_RETVAL_COMPLETE); 6241 } 6242 6243 /* 6244 * Set the IO_CONT flag, so that if this I/O gets passed to 6245 * ctl_config_write_done(), it'll get passed back to 6246 * ctl_do_mode_select() for further processing, or completion if 6247 * we're all done. 6248 */ 6249 ctsio->io_hdr.flags |= CTL_FLAG_IO_CONT; 6250 ctsio->io_cont = ctl_do_mode_select; 6251 6252 modepage_info = (union ctl_modepage_info *) 6253 ctsio->io_hdr.ctl_private[CTL_PRIV_MODEPAGE].bytes; 6254 memset(modepage_info, 0, sizeof(*modepage_info)); 6255 modepage_info->header.len_left = param_len - header_size - bd_len; 6256 modepage_info->header.len_used = header_size + bd_len; 6257 6258 return (ctl_do_mode_select((union ctl_io *)ctsio)); 6259} 6260 6261int 6262ctl_mode_sense(struct ctl_scsiio *ctsio) 6263{ 6264 struct ctl_lun *lun; 6265 int pc, page_code, dbd, llba, subpage; 6266 int alloc_len, page_len, header_len, total_len; 6267 struct scsi_mode_block_descr *block_desc; 6268 struct ctl_page_index *page_index; 6269 6270 dbd = 0; 6271 llba = 0; 6272 block_desc = NULL; 6273 6274 CTL_DEBUG_PRINT(("ctl_mode_sense\n")); 6275 6276 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6277 switch (ctsio->cdb[0]) { 6278 case MODE_SENSE_6: { 6279 struct scsi_mode_sense_6 *cdb; 6280 6281 cdb = (struct scsi_mode_sense_6 *)ctsio->cdb; 6282 6283 header_len = sizeof(struct scsi_mode_hdr_6); 6284 if (cdb->byte2 & SMS_DBD) 6285 dbd = 1; 6286 else 6287 header_len += sizeof(struct scsi_mode_block_descr); 6288 6289 pc = (cdb->page & SMS_PAGE_CTRL_MASK) >> 6; 6290 page_code = cdb->page & SMS_PAGE_CODE; 6291 subpage = cdb->subpage; 6292 alloc_len = cdb->length; 6293 break; 6294 } 6295 case MODE_SENSE_10: { 6296 struct scsi_mode_sense_10 *cdb; 6297 6298 cdb = (struct scsi_mode_sense_10 *)ctsio->cdb; 6299 6300 header_len = sizeof(struct scsi_mode_hdr_10); 6301 6302 if (cdb->byte2 & SMS_DBD) 6303 dbd = 1; 6304 else 6305 header_len += sizeof(struct scsi_mode_block_descr); 6306 if (cdb->byte2 & SMS10_LLBAA) 6307 llba = 1; 6308 pc = (cdb->page & SMS_PAGE_CTRL_MASK) >> 6; 6309 page_code = cdb->page & SMS_PAGE_CODE; 6310 subpage = cdb->subpage; 6311 alloc_len = scsi_2btoul(cdb->length); 6312 break; 6313 } 6314 default: 6315 ctl_set_invalid_opcode(ctsio); 6316 ctl_done((union ctl_io *)ctsio); 6317 return (CTL_RETVAL_COMPLETE); 6318 break; /* NOTREACHED */ 6319 } 6320 6321 /* 6322 * We have to make a first pass through to calculate the size of 6323 * the pages that match the user's query. Then we allocate enough 6324 * memory to hold it, and actually copy the data into the buffer. 6325 */ 6326 switch (page_code) { 6327 case SMS_ALL_PAGES_PAGE: { 6328 u_int i; 6329 6330 page_len = 0; 6331 6332 /* 6333 * At the moment, values other than 0 and 0xff here are 6334 * reserved according to SPC-3. 6335 */ 6336 if ((subpage != SMS_SUBPAGE_PAGE_0) 6337 && (subpage != SMS_SUBPAGE_ALL)) { 6338 ctl_set_invalid_field(ctsio, 6339 /*sks_valid*/ 1, 6340 /*command*/ 1, 6341 /*field*/ 3, 6342 /*bit_valid*/ 0, 6343 /*bit*/ 0); 6344 ctl_done((union ctl_io *)ctsio); 6345 return (CTL_RETVAL_COMPLETE); 6346 } 6347 6348 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6349 page_index = &lun->mode_pages.index[i]; 6350 6351 /* Make sure the page is supported for this dev type */ 6352 if (lun->be_lun->lun_type == T_DIRECT && 6353 (page_index->page_flags & CTL_PAGE_FLAG_DIRECT) == 0) 6354 continue; 6355 if (lun->be_lun->lun_type == T_PROCESSOR && 6356 (page_index->page_flags & CTL_PAGE_FLAG_PROC) == 0) 6357 continue; 6358 if (lun->be_lun->lun_type == T_CDROM && 6359 (page_index->page_flags & CTL_PAGE_FLAG_CDROM) == 0) 6360 continue; 6361 6362 /* 6363 * We don't use this subpage if the user didn't 6364 * request all subpages. 6365 */ 6366 if ((page_index->subpage != 0) 6367 && (subpage == SMS_SUBPAGE_PAGE_0)) 6368 continue; 6369 6370#if 0 6371 printf("found page %#x len %d\n", 6372 page_index->page_code & SMPH_PC_MASK, 6373 page_index->page_len); 6374#endif 6375 page_len += page_index->page_len; 6376 } 6377 break; 6378 } 6379 default: { 6380 u_int i; 6381 6382 page_len = 0; 6383 6384 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6385 page_index = &lun->mode_pages.index[i]; 6386 6387 /* Make sure the page is supported for this dev type */ 6388 if (lun->be_lun->lun_type == T_DIRECT && 6389 (page_index->page_flags & CTL_PAGE_FLAG_DIRECT) == 0) 6390 continue; 6391 if (lun->be_lun->lun_type == T_PROCESSOR && 6392 (page_index->page_flags & CTL_PAGE_FLAG_PROC) == 0) 6393 continue; 6394 if (lun->be_lun->lun_type == T_CDROM && 6395 (page_index->page_flags & CTL_PAGE_FLAG_CDROM) == 0) 6396 continue; 6397 6398 /* Look for the right page code */ 6399 if ((page_index->page_code & SMPH_PC_MASK) != page_code) 6400 continue; 6401 6402 /* Look for the right subpage or the subpage wildcard*/ 6403 if ((page_index->subpage != subpage) 6404 && (subpage != SMS_SUBPAGE_ALL)) 6405 continue; 6406 6407#if 0 6408 printf("found page %#x len %d\n", 6409 page_index->page_code & SMPH_PC_MASK, 6410 page_index->page_len); 6411#endif 6412 6413 page_len += page_index->page_len; 6414 } 6415 6416 if (page_len == 0) { 6417 ctl_set_invalid_field(ctsio, 6418 /*sks_valid*/ 1, 6419 /*command*/ 1, 6420 /*field*/ 2, 6421 /*bit_valid*/ 1, 6422 /*bit*/ 5); 6423 ctl_done((union ctl_io *)ctsio); 6424 return (CTL_RETVAL_COMPLETE); 6425 } 6426 break; 6427 } 6428 } 6429 6430 total_len = header_len + page_len; 6431#if 0 6432 printf("header_len = %d, page_len = %d, total_len = %d\n", 6433 header_len, page_len, total_len); 6434#endif 6435 6436 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 6437 ctsio->kern_sg_entries = 0; 6438 ctsio->kern_data_resid = 0; 6439 ctsio->kern_rel_offset = 0; 6440 if (total_len < alloc_len) { 6441 ctsio->residual = alloc_len - total_len; 6442 ctsio->kern_data_len = total_len; 6443 ctsio->kern_total_len = total_len; 6444 } else { 6445 ctsio->residual = 0; 6446 ctsio->kern_data_len = alloc_len; 6447 ctsio->kern_total_len = alloc_len; 6448 } 6449 6450 switch (ctsio->cdb[0]) { 6451 case MODE_SENSE_6: { 6452 struct scsi_mode_hdr_6 *header; 6453 6454 header = (struct scsi_mode_hdr_6 *)ctsio->kern_data_ptr; 6455 6456 header->datalen = MIN(total_len - 1, 254); 6457 if (lun->be_lun->lun_type == T_DIRECT) { 6458 header->dev_specific = 0x10; /* DPOFUA */ 6459 if ((lun->be_lun->flags & CTL_LUN_FLAG_READONLY) || 6460 (lun->MODE_CTRL.eca_and_aen & SCP_SWP) != 0) 6461 header->dev_specific |= 0x80; /* WP */ 6462 } 6463 if (dbd) 6464 header->block_descr_len = 0; 6465 else 6466 header->block_descr_len = 6467 sizeof(struct scsi_mode_block_descr); 6468 block_desc = (struct scsi_mode_block_descr *)&header[1]; 6469 break; 6470 } 6471 case MODE_SENSE_10: { 6472 struct scsi_mode_hdr_10 *header; 6473 int datalen; 6474 6475 header = (struct scsi_mode_hdr_10 *)ctsio->kern_data_ptr; 6476 6477 datalen = MIN(total_len - 2, 65533); 6478 scsi_ulto2b(datalen, header->datalen); 6479 if (lun->be_lun->lun_type == T_DIRECT) { 6480 header->dev_specific = 0x10; /* DPOFUA */ 6481 if ((lun->be_lun->flags & CTL_LUN_FLAG_READONLY) || 6482 (lun->MODE_CTRL.eca_and_aen & SCP_SWP) != 0) 6483 header->dev_specific |= 0x80; /* WP */ 6484 } 6485 if (dbd) 6486 scsi_ulto2b(0, header->block_descr_len); 6487 else 6488 scsi_ulto2b(sizeof(struct scsi_mode_block_descr), 6489 header->block_descr_len); 6490 block_desc = (struct scsi_mode_block_descr *)&header[1]; 6491 break; 6492 } 6493 default: 6494 panic("%s: Invalid CDB type %#x", __func__, ctsio->cdb[0]); 6495 } 6496 6497 /* 6498 * If we've got a disk, use its blocksize in the block 6499 * descriptor. Otherwise, just set it to 0. 6500 */ 6501 if (dbd == 0) { 6502 if (lun->be_lun->lun_type == T_DIRECT) 6503 scsi_ulto3b(lun->be_lun->blocksize, 6504 block_desc->block_len); 6505 else 6506 scsi_ulto3b(0, block_desc->block_len); 6507 } 6508 6509 switch (page_code) { 6510 case SMS_ALL_PAGES_PAGE: { 6511 int i, data_used; 6512 6513 data_used = header_len; 6514 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6515 struct ctl_page_index *page_index; 6516 6517 page_index = &lun->mode_pages.index[i]; 6518 if (lun->be_lun->lun_type == T_DIRECT && 6519 (page_index->page_flags & CTL_PAGE_FLAG_DIRECT) == 0) 6520 continue; 6521 if (lun->be_lun->lun_type == T_PROCESSOR && 6522 (page_index->page_flags & CTL_PAGE_FLAG_PROC) == 0) 6523 continue; 6524 if (lun->be_lun->lun_type == T_CDROM && 6525 (page_index->page_flags & CTL_PAGE_FLAG_CDROM) == 0) 6526 continue; 6527 6528 /* 6529 * We don't use this subpage if the user didn't 6530 * request all subpages. We already checked (above) 6531 * to make sure the user only specified a subpage 6532 * of 0 or 0xff in the SMS_ALL_PAGES_PAGE case. 6533 */ 6534 if ((page_index->subpage != 0) 6535 && (subpage == SMS_SUBPAGE_PAGE_0)) 6536 continue; 6537 6538 /* 6539 * Call the handler, if it exists, to update the 6540 * page to the latest values. 6541 */ 6542 if (page_index->sense_handler != NULL) 6543 page_index->sense_handler(ctsio, page_index,pc); 6544 6545 memcpy(ctsio->kern_data_ptr + data_used, 6546 page_index->page_data + 6547 (page_index->page_len * pc), 6548 page_index->page_len); 6549 data_used += page_index->page_len; 6550 } 6551 break; 6552 } 6553 default: { 6554 int i, data_used; 6555 6556 data_used = header_len; 6557 6558 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6559 struct ctl_page_index *page_index; 6560 6561 page_index = &lun->mode_pages.index[i]; 6562 6563 /* Look for the right page code */ 6564 if ((page_index->page_code & SMPH_PC_MASK) != page_code) 6565 continue; 6566 6567 /* Look for the right subpage or the subpage wildcard*/ 6568 if ((page_index->subpage != subpage) 6569 && (subpage != SMS_SUBPAGE_ALL)) 6570 continue; 6571 6572 /* Make sure the page is supported for this dev type */ 6573 if (lun->be_lun->lun_type == T_DIRECT && 6574 (page_index->page_flags & CTL_PAGE_FLAG_DIRECT) == 0) 6575 continue; 6576 if (lun->be_lun->lun_type == T_PROCESSOR && 6577 (page_index->page_flags & CTL_PAGE_FLAG_PROC) == 0) 6578 continue; 6579 if (lun->be_lun->lun_type == T_CDROM && 6580 (page_index->page_flags & CTL_PAGE_FLAG_CDROM) == 0) 6581 continue; 6582 6583 /* 6584 * Call the handler, if it exists, to update the 6585 * page to the latest values. 6586 */ 6587 if (page_index->sense_handler != NULL) 6588 page_index->sense_handler(ctsio, page_index,pc); 6589 6590 memcpy(ctsio->kern_data_ptr + data_used, 6591 page_index->page_data + 6592 (page_index->page_len * pc), 6593 page_index->page_len); 6594 data_used += page_index->page_len; 6595 } 6596 break; 6597 } 6598 } 6599 6600 ctl_set_success(ctsio); 6601 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6602 ctsio->be_move_done = ctl_config_move_done; 6603 ctl_datamove((union ctl_io *)ctsio); 6604 return (CTL_RETVAL_COMPLETE); 6605} 6606 6607int 6608ctl_lbp_log_sense_handler(struct ctl_scsiio *ctsio, 6609 struct ctl_page_index *page_index, 6610 int pc) 6611{ 6612 struct ctl_lun *lun; 6613 struct scsi_log_param_header *phdr; 6614 uint8_t *data; 6615 uint64_t val; 6616 6617 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6618 data = page_index->page_data; 6619 6620 if (lun->backend->lun_attr != NULL && 6621 (val = lun->backend->lun_attr(lun->be_lun->be_lun, "blocksavail")) 6622 != UINT64_MAX) { 6623 phdr = (struct scsi_log_param_header *)data; 6624 scsi_ulto2b(0x0001, phdr->param_code); 6625 phdr->param_control = SLP_LBIN | SLP_LP; 6626 phdr->param_len = 8; 6627 data = (uint8_t *)(phdr + 1); 6628 scsi_ulto4b(val >> CTL_LBP_EXPONENT, data); 6629 data[4] = 0x02; /* per-pool */ 6630 data += phdr->param_len; 6631 } 6632 6633 if (lun->backend->lun_attr != NULL && 6634 (val = lun->backend->lun_attr(lun->be_lun->be_lun, "blocksused")) 6635 != UINT64_MAX) { 6636 phdr = (struct scsi_log_param_header *)data; 6637 scsi_ulto2b(0x0002, phdr->param_code); 6638 phdr->param_control = SLP_LBIN | SLP_LP; 6639 phdr->param_len = 8; 6640 data = (uint8_t *)(phdr + 1); 6641 scsi_ulto4b(val >> CTL_LBP_EXPONENT, data); 6642 data[4] = 0x01; /* per-LUN */ 6643 data += phdr->param_len; 6644 } 6645 6646 if (lun->backend->lun_attr != NULL && 6647 (val = lun->backend->lun_attr(lun->be_lun->be_lun, "poolblocksavail")) 6648 != UINT64_MAX) { 6649 phdr = (struct scsi_log_param_header *)data; 6650 scsi_ulto2b(0x00f1, phdr->param_code); 6651 phdr->param_control = SLP_LBIN | SLP_LP; 6652 phdr->param_len = 8; 6653 data = (uint8_t *)(phdr + 1); 6654 scsi_ulto4b(val >> CTL_LBP_EXPONENT, data); 6655 data[4] = 0x02; /* per-pool */ 6656 data += phdr->param_len; 6657 } 6658 6659 if (lun->backend->lun_attr != NULL && 6660 (val = lun->backend->lun_attr(lun->be_lun->be_lun, "poolblocksused")) 6661 != UINT64_MAX) { 6662 phdr = (struct scsi_log_param_header *)data; 6663 scsi_ulto2b(0x00f2, phdr->param_code); 6664 phdr->param_control = SLP_LBIN | SLP_LP; 6665 phdr->param_len = 8; 6666 data = (uint8_t *)(phdr + 1); 6667 scsi_ulto4b(val >> CTL_LBP_EXPONENT, data); 6668 data[4] = 0x02; /* per-pool */ 6669 data += phdr->param_len; 6670 } 6671 6672 page_index->page_len = data - page_index->page_data; 6673 return (0); 6674} 6675 6676int 6677ctl_sap_log_sense_handler(struct ctl_scsiio *ctsio, 6678 struct ctl_page_index *page_index, 6679 int pc) 6680{ 6681 struct ctl_lun *lun; 6682 struct stat_page *data; 6683 uint64_t rn, wn, rb, wb; 6684 struct bintime rt, wt; 6685 int i; 6686 6687 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6688 data = (struct stat_page *)page_index->page_data; 6689 6690 scsi_ulto2b(SLP_SAP, data->sap.hdr.param_code); 6691 data->sap.hdr.param_control = SLP_LBIN; 6692 data->sap.hdr.param_len = sizeof(struct scsi_log_stat_and_perf) - 6693 sizeof(struct scsi_log_param_header); 6694 rn = wn = rb = wb = 0; 6695 bintime_clear(&rt); 6696 bintime_clear(&wt); 6697 for (i = 0; i < CTL_MAX_PORTS; i++) { 6698 rn += lun->stats.ports[i].operations[CTL_STATS_READ]; 6699 wn += lun->stats.ports[i].operations[CTL_STATS_WRITE]; 6700 rb += lun->stats.ports[i].bytes[CTL_STATS_READ]; 6701 wb += lun->stats.ports[i].bytes[CTL_STATS_WRITE]; 6702 bintime_add(&rt, &lun->stats.ports[i].time[CTL_STATS_READ]); 6703 bintime_add(&wt, &lun->stats.ports[i].time[CTL_STATS_WRITE]); 6704 } 6705 scsi_u64to8b(rn, data->sap.read_num); 6706 scsi_u64to8b(wn, data->sap.write_num); 6707 if (lun->stats.blocksize > 0) { 6708 scsi_u64to8b(wb / lun->stats.blocksize, 6709 data->sap.recvieved_lba); 6710 scsi_u64to8b(rb / lun->stats.blocksize, 6711 data->sap.transmitted_lba); 6712 } 6713 scsi_u64to8b((uint64_t)rt.sec * 1000 + rt.frac / (UINT64_MAX / 1000), 6714 data->sap.read_int); 6715 scsi_u64to8b((uint64_t)wt.sec * 1000 + wt.frac / (UINT64_MAX / 1000), 6716 data->sap.write_int); 6717 scsi_u64to8b(0, data->sap.weighted_num); 6718 scsi_u64to8b(0, data->sap.weighted_int); 6719 scsi_ulto2b(SLP_IT, data->it.hdr.param_code); 6720 data->it.hdr.param_control = SLP_LBIN; 6721 data->it.hdr.param_len = sizeof(struct scsi_log_idle_time) - 6722 sizeof(struct scsi_log_param_header); 6723#ifdef CTL_TIME_IO 6724 scsi_u64to8b(lun->idle_time / SBT_1MS, data->it.idle_int); 6725#endif 6726 scsi_ulto2b(SLP_TI, data->ti.hdr.param_code); 6727 data->it.hdr.param_control = SLP_LBIN; 6728 data->ti.hdr.param_len = sizeof(struct scsi_log_time_interval) - 6729 sizeof(struct scsi_log_param_header); 6730 scsi_ulto4b(3, data->ti.exponent); 6731 scsi_ulto4b(1, data->ti.integer); 6732 return (0); 6733} 6734 6735int 6736ctl_ie_log_sense_handler(struct ctl_scsiio *ctsio, 6737 struct ctl_page_index *page_index, 6738 int pc) 6739{ 6740 struct ctl_lun *lun; 6741 struct scsi_log_informational_exceptions *data; 6742 6743 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6744 data = (struct scsi_log_informational_exceptions *)page_index->page_data; 6745 6746 scsi_ulto2b(SLP_IE_GEN, data->hdr.param_code); 6747 data->hdr.param_control = SLP_LBIN; 6748 data->hdr.param_len = sizeof(struct scsi_log_informational_exceptions) - 6749 sizeof(struct scsi_log_param_header); 6750 data->ie_asc = lun->ie_asc; 6751 data->ie_ascq = lun->ie_ascq; 6752 data->temperature = 0xff; 6753 return (0); 6754} 6755 6756int 6757ctl_log_sense(struct ctl_scsiio *ctsio) 6758{ 6759 struct ctl_lun *lun; 6760 int i, pc, page_code, subpage; 6761 int alloc_len, total_len; 6762 struct ctl_page_index *page_index; 6763 struct scsi_log_sense *cdb; 6764 struct scsi_log_header *header; 6765 6766 CTL_DEBUG_PRINT(("ctl_log_sense\n")); 6767 6768 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6769 cdb = (struct scsi_log_sense *)ctsio->cdb; 6770 pc = (cdb->page & SLS_PAGE_CTRL_MASK) >> 6; 6771 page_code = cdb->page & SLS_PAGE_CODE; 6772 subpage = cdb->subpage; 6773 alloc_len = scsi_2btoul(cdb->length); 6774 6775 page_index = NULL; 6776 for (i = 0; i < CTL_NUM_LOG_PAGES; i++) { 6777 page_index = &lun->log_pages.index[i]; 6778 6779 /* Look for the right page code */ 6780 if ((page_index->page_code & SL_PAGE_CODE) != page_code) 6781 continue; 6782 6783 /* Look for the right subpage or the subpage wildcard*/ 6784 if (page_index->subpage != subpage) 6785 continue; 6786 6787 break; 6788 } 6789 if (i >= CTL_NUM_LOG_PAGES) { 6790 ctl_set_invalid_field(ctsio, 6791 /*sks_valid*/ 1, 6792 /*command*/ 1, 6793 /*field*/ 2, 6794 /*bit_valid*/ 0, 6795 /*bit*/ 0); 6796 ctl_done((union ctl_io *)ctsio); 6797 return (CTL_RETVAL_COMPLETE); 6798 } 6799 6800 total_len = sizeof(struct scsi_log_header) + page_index->page_len; 6801 6802 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 6803 ctsio->kern_sg_entries = 0; 6804 ctsio->kern_data_resid = 0; 6805 ctsio->kern_rel_offset = 0; 6806 if (total_len < alloc_len) { 6807 ctsio->residual = alloc_len - total_len; 6808 ctsio->kern_data_len = total_len; 6809 ctsio->kern_total_len = total_len; 6810 } else { 6811 ctsio->residual = 0; 6812 ctsio->kern_data_len = alloc_len; 6813 ctsio->kern_total_len = alloc_len; 6814 } 6815 6816 header = (struct scsi_log_header *)ctsio->kern_data_ptr; 6817 header->page = page_index->page_code; 6818 if (page_index->page_code == SLS_LOGICAL_BLOCK_PROVISIONING) 6819 header->page |= SL_DS; 6820 if (page_index->subpage) { 6821 header->page |= SL_SPF; 6822 header->subpage = page_index->subpage; 6823 } 6824 scsi_ulto2b(page_index->page_len, header->datalen); 6825 6826 /* 6827 * Call the handler, if it exists, to update the 6828 * page to the latest values. 6829 */ 6830 if (page_index->sense_handler != NULL) 6831 page_index->sense_handler(ctsio, page_index, pc); 6832 6833 memcpy(header + 1, page_index->page_data, page_index->page_len); 6834 6835 ctl_set_success(ctsio); 6836 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6837 ctsio->be_move_done = ctl_config_move_done; 6838 ctl_datamove((union ctl_io *)ctsio); 6839 return (CTL_RETVAL_COMPLETE); 6840} 6841 6842int 6843ctl_read_capacity(struct ctl_scsiio *ctsio) 6844{ 6845 struct scsi_read_capacity *cdb; 6846 struct scsi_read_capacity_data *data; 6847 struct ctl_lun *lun; 6848 uint32_t lba; 6849 6850 CTL_DEBUG_PRINT(("ctl_read_capacity\n")); 6851 6852 cdb = (struct scsi_read_capacity *)ctsio->cdb; 6853 6854 lba = scsi_4btoul(cdb->addr); 6855 if (((cdb->pmi & SRC_PMI) == 0) 6856 && (lba != 0)) { 6857 ctl_set_invalid_field(/*ctsio*/ ctsio, 6858 /*sks_valid*/ 1, 6859 /*command*/ 1, 6860 /*field*/ 2, 6861 /*bit_valid*/ 0, 6862 /*bit*/ 0); 6863 ctl_done((union ctl_io *)ctsio); 6864 return (CTL_RETVAL_COMPLETE); 6865 } 6866 6867 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6868 6869 ctsio->kern_data_ptr = malloc(sizeof(*data), M_CTL, M_WAITOK | M_ZERO); 6870 data = (struct scsi_read_capacity_data *)ctsio->kern_data_ptr; 6871 ctsio->residual = 0; 6872 ctsio->kern_data_len = sizeof(*data); 6873 ctsio->kern_total_len = sizeof(*data); 6874 ctsio->kern_data_resid = 0; 6875 ctsio->kern_rel_offset = 0; 6876 ctsio->kern_sg_entries = 0; 6877 6878 /* 6879 * If the maximum LBA is greater than 0xfffffffe, the user must 6880 * issue a SERVICE ACTION IN (16) command, with the read capacity 6881 * serivce action set. 6882 */ 6883 if (lun->be_lun->maxlba > 0xfffffffe) 6884 scsi_ulto4b(0xffffffff, data->addr); 6885 else 6886 scsi_ulto4b(lun->be_lun->maxlba, data->addr); 6887 6888 /* 6889 * XXX KDM this may not be 512 bytes... 6890 */ 6891 scsi_ulto4b(lun->be_lun->blocksize, data->length); 6892 6893 ctl_set_success(ctsio); 6894 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6895 ctsio->be_move_done = ctl_config_move_done; 6896 ctl_datamove((union ctl_io *)ctsio); 6897 return (CTL_RETVAL_COMPLETE); 6898} 6899 6900int 6901ctl_read_capacity_16(struct ctl_scsiio *ctsio) 6902{ 6903 struct scsi_read_capacity_16 *cdb; 6904 struct scsi_read_capacity_data_long *data; 6905 struct ctl_lun *lun; 6906 uint64_t lba; 6907 uint32_t alloc_len; 6908 6909 CTL_DEBUG_PRINT(("ctl_read_capacity_16\n")); 6910 6911 cdb = (struct scsi_read_capacity_16 *)ctsio->cdb; 6912 6913 alloc_len = scsi_4btoul(cdb->alloc_len); 6914 lba = scsi_8btou64(cdb->addr); 6915 6916 if ((cdb->reladr & SRC16_PMI) 6917 && (lba != 0)) { 6918 ctl_set_invalid_field(/*ctsio*/ ctsio, 6919 /*sks_valid*/ 1, 6920 /*command*/ 1, 6921 /*field*/ 2, 6922 /*bit_valid*/ 0, 6923 /*bit*/ 0); 6924 ctl_done((union ctl_io *)ctsio); 6925 return (CTL_RETVAL_COMPLETE); 6926 } 6927 6928 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6929 6930 ctsio->kern_data_ptr = malloc(sizeof(*data), M_CTL, M_WAITOK | M_ZERO); 6931 data = (struct scsi_read_capacity_data_long *)ctsio->kern_data_ptr; 6932 6933 if (sizeof(*data) < alloc_len) { 6934 ctsio->residual = alloc_len - sizeof(*data); 6935 ctsio->kern_data_len = sizeof(*data); 6936 ctsio->kern_total_len = sizeof(*data); 6937 } else { 6938 ctsio->residual = 0; 6939 ctsio->kern_data_len = alloc_len; 6940 ctsio->kern_total_len = alloc_len; 6941 } 6942 ctsio->kern_data_resid = 0; 6943 ctsio->kern_rel_offset = 0; 6944 ctsio->kern_sg_entries = 0; 6945 6946 scsi_u64to8b(lun->be_lun->maxlba, data->addr); 6947 /* XXX KDM this may not be 512 bytes... */ 6948 scsi_ulto4b(lun->be_lun->blocksize, data->length); 6949 data->prot_lbppbe = lun->be_lun->pblockexp & SRC16_LBPPBE; 6950 scsi_ulto2b(lun->be_lun->pblockoff & SRC16_LALBA_A, data->lalba_lbp); 6951 if (lun->be_lun->flags & CTL_LUN_FLAG_UNMAP) 6952 data->lalba_lbp[0] |= SRC16_LBPME | SRC16_LBPRZ; 6953 6954 ctl_set_success(ctsio); 6955 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6956 ctsio->be_move_done = ctl_config_move_done; 6957 ctl_datamove((union ctl_io *)ctsio); 6958 return (CTL_RETVAL_COMPLETE); 6959} 6960 6961int 6962ctl_get_lba_status(struct ctl_scsiio *ctsio) 6963{ 6964 struct scsi_get_lba_status *cdb; 6965 struct scsi_get_lba_status_data *data; 6966 struct ctl_lun *lun; 6967 struct ctl_lba_len_flags *lbalen; 6968 uint64_t lba; 6969 uint32_t alloc_len, total_len; 6970 int retval; 6971 6972 CTL_DEBUG_PRINT(("ctl_get_lba_status\n")); 6973 6974 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6975 cdb = (struct scsi_get_lba_status *)ctsio->cdb; 6976 lba = scsi_8btou64(cdb->addr); 6977 alloc_len = scsi_4btoul(cdb->alloc_len); 6978 6979 if (lba > lun->be_lun->maxlba) { 6980 ctl_set_lba_out_of_range(ctsio, lba); 6981 ctl_done((union ctl_io *)ctsio); 6982 return (CTL_RETVAL_COMPLETE); 6983 } 6984 6985 total_len = sizeof(*data) + sizeof(data->descr[0]); 6986 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 6987 data = (struct scsi_get_lba_status_data *)ctsio->kern_data_ptr; 6988 6989 if (total_len < alloc_len) { 6990 ctsio->residual = alloc_len - total_len; 6991 ctsio->kern_data_len = total_len; 6992 ctsio->kern_total_len = total_len; 6993 } else { 6994 ctsio->residual = 0; 6995 ctsio->kern_data_len = alloc_len; 6996 ctsio->kern_total_len = alloc_len; 6997 } 6998 ctsio->kern_data_resid = 0; 6999 ctsio->kern_rel_offset = 0; 7000 ctsio->kern_sg_entries = 0; 7001 7002 /* Fill dummy data in case backend can't tell anything. */ 7003 scsi_ulto4b(4 + sizeof(data->descr[0]), data->length); 7004 scsi_u64to8b(lba, data->descr[0].addr); 7005 scsi_ulto4b(MIN(UINT32_MAX, lun->be_lun->maxlba + 1 - lba), 7006 data->descr[0].length); 7007 data->descr[0].status = 0; /* Mapped or unknown. */ 7008 7009 ctl_set_success(ctsio); 7010 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7011 ctsio->be_move_done = ctl_config_move_done; 7012 7013 lbalen = (struct ctl_lba_len_flags *)&ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 7014 lbalen->lba = lba; 7015 lbalen->len = total_len; 7016 lbalen->flags = 0; 7017 retval = lun->backend->config_read((union ctl_io *)ctsio); 7018 return (CTL_RETVAL_COMPLETE); 7019} 7020 7021int 7022ctl_read_defect(struct ctl_scsiio *ctsio) 7023{ 7024 struct scsi_read_defect_data_10 *ccb10; 7025 struct scsi_read_defect_data_12 *ccb12; 7026 struct scsi_read_defect_data_hdr_10 *data10; 7027 struct scsi_read_defect_data_hdr_12 *data12; 7028 uint32_t alloc_len, data_len; 7029 uint8_t format; 7030 7031 CTL_DEBUG_PRINT(("ctl_read_defect\n")); 7032 7033 if (ctsio->cdb[0] == READ_DEFECT_DATA_10) { 7034 ccb10 = (struct scsi_read_defect_data_10 *)&ctsio->cdb; 7035 format = ccb10->format; 7036 alloc_len = scsi_2btoul(ccb10->alloc_length); 7037 data_len = sizeof(*data10); 7038 } else { 7039 ccb12 = (struct scsi_read_defect_data_12 *)&ctsio->cdb; 7040 format = ccb12->format; 7041 alloc_len = scsi_4btoul(ccb12->alloc_length); 7042 data_len = sizeof(*data12); 7043 } 7044 if (alloc_len == 0) { 7045 ctl_set_success(ctsio); 7046 ctl_done((union ctl_io *)ctsio); 7047 return (CTL_RETVAL_COMPLETE); 7048 } 7049 7050 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 7051 if (data_len < alloc_len) { 7052 ctsio->residual = alloc_len - data_len; 7053 ctsio->kern_data_len = data_len; 7054 ctsio->kern_total_len = data_len; 7055 } else { 7056 ctsio->residual = 0; 7057 ctsio->kern_data_len = alloc_len; 7058 ctsio->kern_total_len = alloc_len; 7059 } 7060 ctsio->kern_data_resid = 0; 7061 ctsio->kern_rel_offset = 0; 7062 ctsio->kern_sg_entries = 0; 7063 7064 if (ctsio->cdb[0] == READ_DEFECT_DATA_10) { 7065 data10 = (struct scsi_read_defect_data_hdr_10 *) 7066 ctsio->kern_data_ptr; 7067 data10->format = format; 7068 scsi_ulto2b(0, data10->length); 7069 } else { 7070 data12 = (struct scsi_read_defect_data_hdr_12 *) 7071 ctsio->kern_data_ptr; 7072 data12->format = format; 7073 scsi_ulto2b(0, data12->generation); 7074 scsi_ulto4b(0, data12->length); 7075 } 7076 7077 ctl_set_success(ctsio); 7078 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7079 ctsio->be_move_done = ctl_config_move_done; 7080 ctl_datamove((union ctl_io *)ctsio); 7081 return (CTL_RETVAL_COMPLETE); 7082} 7083 7084int 7085ctl_report_tagret_port_groups(struct ctl_scsiio *ctsio) 7086{ 7087 struct scsi_maintenance_in *cdb; 7088 int retval; 7089 int alloc_len, ext, total_len = 0, g, pc, pg, ts, os; 7090 int num_ha_groups, num_target_ports, shared_group; 7091 struct ctl_lun *lun; 7092 struct ctl_softc *softc; 7093 struct ctl_port *port; 7094 struct scsi_target_group_data *rtg_ptr; 7095 struct scsi_target_group_data_extended *rtg_ext_ptr; 7096 struct scsi_target_port_group_descriptor *tpg_desc; 7097 7098 CTL_DEBUG_PRINT(("ctl_report_tagret_port_groups\n")); 7099 7100 cdb = (struct scsi_maintenance_in *)ctsio->cdb; 7101 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7102 softc = lun->ctl_softc; 7103 7104 retval = CTL_RETVAL_COMPLETE; 7105 7106 switch (cdb->byte2 & STG_PDF_MASK) { 7107 case STG_PDF_LENGTH: 7108 ext = 0; 7109 break; 7110 case STG_PDF_EXTENDED: 7111 ext = 1; 7112 break; 7113 default: 7114 ctl_set_invalid_field(/*ctsio*/ ctsio, 7115 /*sks_valid*/ 1, 7116 /*command*/ 1, 7117 /*field*/ 2, 7118 /*bit_valid*/ 1, 7119 /*bit*/ 5); 7120 ctl_done((union ctl_io *)ctsio); 7121 return(retval); 7122 } 7123 7124 num_target_ports = 0; 7125 shared_group = (softc->is_single != 0); 7126 mtx_lock(&softc->ctl_lock); 7127 STAILQ_FOREACH(port, &softc->port_list, links) { 7128 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 7129 continue; 7130 if (ctl_lun_map_to_port(port, lun->lun) == UINT32_MAX) 7131 continue; 7132 num_target_ports++; 7133 if (port->status & CTL_PORT_STATUS_HA_SHARED) 7134 shared_group = 1; 7135 } 7136 mtx_unlock(&softc->ctl_lock); 7137 num_ha_groups = (softc->is_single) ? 0 : NUM_HA_SHELVES; 7138 7139 if (ext) 7140 total_len = sizeof(struct scsi_target_group_data_extended); 7141 else 7142 total_len = sizeof(struct scsi_target_group_data); 7143 total_len += sizeof(struct scsi_target_port_group_descriptor) * 7144 (shared_group + num_ha_groups) + 7145 sizeof(struct scsi_target_port_descriptor) * num_target_ports; 7146 7147 alloc_len = scsi_4btoul(cdb->length); 7148 7149 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7150 7151 ctsio->kern_sg_entries = 0; 7152 7153 if (total_len < alloc_len) { 7154 ctsio->residual = alloc_len - total_len; 7155 ctsio->kern_data_len = total_len; 7156 ctsio->kern_total_len = total_len; 7157 } else { 7158 ctsio->residual = 0; 7159 ctsio->kern_data_len = alloc_len; 7160 ctsio->kern_total_len = alloc_len; 7161 } 7162 ctsio->kern_data_resid = 0; 7163 ctsio->kern_rel_offset = 0; 7164 7165 if (ext) { 7166 rtg_ext_ptr = (struct scsi_target_group_data_extended *) 7167 ctsio->kern_data_ptr; 7168 scsi_ulto4b(total_len - 4, rtg_ext_ptr->length); 7169 rtg_ext_ptr->format_type = 0x10; 7170 rtg_ext_ptr->implicit_transition_time = 0; 7171 tpg_desc = &rtg_ext_ptr->groups[0]; 7172 } else { 7173 rtg_ptr = (struct scsi_target_group_data *) 7174 ctsio->kern_data_ptr; 7175 scsi_ulto4b(total_len - 4, rtg_ptr->length); 7176 tpg_desc = &rtg_ptr->groups[0]; 7177 } 7178 7179 mtx_lock(&softc->ctl_lock); 7180 pg = softc->port_min / softc->port_cnt; 7181 if (lun->flags & (CTL_LUN_PRIMARY_SC | CTL_LUN_PEER_SC_PRIMARY)) { 7182 /* Some shelf is known to be primary. */ 7183 if (softc->ha_link == CTL_HA_LINK_OFFLINE) 7184 os = TPG_ASYMMETRIC_ACCESS_UNAVAILABLE; 7185 else if (softc->ha_link == CTL_HA_LINK_UNKNOWN) 7186 os = TPG_ASYMMETRIC_ACCESS_TRANSITIONING; 7187 else if (softc->ha_mode == CTL_HA_MODE_ACT_STBY) 7188 os = TPG_ASYMMETRIC_ACCESS_STANDBY; 7189 else 7190 os = TPG_ASYMMETRIC_ACCESS_NONOPTIMIZED; 7191 if (lun->flags & CTL_LUN_PRIMARY_SC) { 7192 ts = TPG_ASYMMETRIC_ACCESS_OPTIMIZED; 7193 } else { 7194 ts = os; 7195 os = TPG_ASYMMETRIC_ACCESS_OPTIMIZED; 7196 } 7197 } else { 7198 /* No known primary shelf. */ 7199 if (softc->ha_link == CTL_HA_LINK_OFFLINE) { 7200 ts = TPG_ASYMMETRIC_ACCESS_UNAVAILABLE; 7201 os = TPG_ASYMMETRIC_ACCESS_OPTIMIZED; 7202 } else if (softc->ha_link == CTL_HA_LINK_UNKNOWN) { 7203 ts = TPG_ASYMMETRIC_ACCESS_TRANSITIONING; 7204 os = TPG_ASYMMETRIC_ACCESS_OPTIMIZED; 7205 } else { 7206 ts = os = TPG_ASYMMETRIC_ACCESS_TRANSITIONING; 7207 } 7208 } 7209 if (shared_group) { 7210 tpg_desc->pref_state = ts; 7211 tpg_desc->support = TPG_AO_SUP | TPG_AN_SUP | TPG_S_SUP | 7212 TPG_U_SUP | TPG_T_SUP; 7213 scsi_ulto2b(1, tpg_desc->target_port_group); 7214 tpg_desc->status = TPG_IMPLICIT; 7215 pc = 0; 7216 STAILQ_FOREACH(port, &softc->port_list, links) { 7217 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 7218 continue; 7219 if (!softc->is_single && 7220 (port->status & CTL_PORT_STATUS_HA_SHARED) == 0) 7221 continue; 7222 if (ctl_lun_map_to_port(port, lun->lun) == UINT32_MAX) 7223 continue; 7224 scsi_ulto2b(port->targ_port, tpg_desc->descriptors[pc]. 7225 relative_target_port_identifier); 7226 pc++; 7227 } 7228 tpg_desc->target_port_count = pc; 7229 tpg_desc = (struct scsi_target_port_group_descriptor *) 7230 &tpg_desc->descriptors[pc]; 7231 } 7232 for (g = 0; g < num_ha_groups; g++) { 7233 tpg_desc->pref_state = (g == pg) ? ts : os; 7234 tpg_desc->support = TPG_AO_SUP | TPG_AN_SUP | TPG_S_SUP | 7235 TPG_U_SUP | TPG_T_SUP; 7236 scsi_ulto2b(2 + g, tpg_desc->target_port_group); 7237 tpg_desc->status = TPG_IMPLICIT; 7238 pc = 0; 7239 STAILQ_FOREACH(port, &softc->port_list, links) { 7240 if (port->targ_port < g * softc->port_cnt || 7241 port->targ_port >= (g + 1) * softc->port_cnt) 7242 continue; 7243 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 7244 continue; 7245 if (port->status & CTL_PORT_STATUS_HA_SHARED) 7246 continue; 7247 if (ctl_lun_map_to_port(port, lun->lun) == UINT32_MAX) 7248 continue; 7249 scsi_ulto2b(port->targ_port, tpg_desc->descriptors[pc]. 7250 relative_target_port_identifier); 7251 pc++; 7252 } 7253 tpg_desc->target_port_count = pc; 7254 tpg_desc = (struct scsi_target_port_group_descriptor *) 7255 &tpg_desc->descriptors[pc]; 7256 } 7257 mtx_unlock(&softc->ctl_lock); 7258 7259 ctl_set_success(ctsio); 7260 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7261 ctsio->be_move_done = ctl_config_move_done; 7262 ctl_datamove((union ctl_io *)ctsio); 7263 return(retval); 7264} 7265 7266int 7267ctl_report_supported_opcodes(struct ctl_scsiio *ctsio) 7268{ 7269 struct ctl_lun *lun; 7270 struct scsi_report_supported_opcodes *cdb; 7271 const struct ctl_cmd_entry *entry, *sentry; 7272 struct scsi_report_supported_opcodes_all *all; 7273 struct scsi_report_supported_opcodes_descr *descr; 7274 struct scsi_report_supported_opcodes_one *one; 7275 int retval; 7276 int alloc_len, total_len; 7277 int opcode, service_action, i, j, num; 7278 7279 CTL_DEBUG_PRINT(("ctl_report_supported_opcodes\n")); 7280 7281 cdb = (struct scsi_report_supported_opcodes *)ctsio->cdb; 7282 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7283 7284 retval = CTL_RETVAL_COMPLETE; 7285 7286 opcode = cdb->requested_opcode; 7287 service_action = scsi_2btoul(cdb->requested_service_action); 7288 switch (cdb->options & RSO_OPTIONS_MASK) { 7289 case RSO_OPTIONS_ALL: 7290 num = 0; 7291 for (i = 0; i < 256; i++) { 7292 entry = &ctl_cmd_table[i]; 7293 if (entry->flags & CTL_CMD_FLAG_SA5) { 7294 for (j = 0; j < 32; j++) { 7295 sentry = &((const struct ctl_cmd_entry *) 7296 entry->execute)[j]; 7297 if (ctl_cmd_applicable( 7298 lun->be_lun->lun_type, sentry)) 7299 num++; 7300 } 7301 } else { 7302 if (ctl_cmd_applicable(lun->be_lun->lun_type, 7303 entry)) 7304 num++; 7305 } 7306 } 7307 total_len = sizeof(struct scsi_report_supported_opcodes_all) + 7308 num * sizeof(struct scsi_report_supported_opcodes_descr); 7309 break; 7310 case RSO_OPTIONS_OC: 7311 if (ctl_cmd_table[opcode].flags & CTL_CMD_FLAG_SA5) { 7312 ctl_set_invalid_field(/*ctsio*/ ctsio, 7313 /*sks_valid*/ 1, 7314 /*command*/ 1, 7315 /*field*/ 2, 7316 /*bit_valid*/ 1, 7317 /*bit*/ 2); 7318 ctl_done((union ctl_io *)ctsio); 7319 return (CTL_RETVAL_COMPLETE); 7320 } 7321 total_len = sizeof(struct scsi_report_supported_opcodes_one) + 32; 7322 break; 7323 case RSO_OPTIONS_OC_SA: 7324 if ((ctl_cmd_table[opcode].flags & CTL_CMD_FLAG_SA5) == 0 || 7325 service_action >= 32) { 7326 ctl_set_invalid_field(/*ctsio*/ ctsio, 7327 /*sks_valid*/ 1, 7328 /*command*/ 1, 7329 /*field*/ 2, 7330 /*bit_valid*/ 1, 7331 /*bit*/ 2); 7332 ctl_done((union ctl_io *)ctsio); 7333 return (CTL_RETVAL_COMPLETE); 7334 } 7335 /* FALLTHROUGH */ 7336 case RSO_OPTIONS_OC_ASA: 7337 total_len = sizeof(struct scsi_report_supported_opcodes_one) + 32; 7338 break; 7339 default: 7340 ctl_set_invalid_field(/*ctsio*/ ctsio, 7341 /*sks_valid*/ 1, 7342 /*command*/ 1, 7343 /*field*/ 2, 7344 /*bit_valid*/ 1, 7345 /*bit*/ 2); 7346 ctl_done((union ctl_io *)ctsio); 7347 return (CTL_RETVAL_COMPLETE); 7348 } 7349 7350 alloc_len = scsi_4btoul(cdb->length); 7351 7352 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7353 7354 ctsio->kern_sg_entries = 0; 7355 7356 if (total_len < alloc_len) { 7357 ctsio->residual = alloc_len - total_len; 7358 ctsio->kern_data_len = total_len; 7359 ctsio->kern_total_len = total_len; 7360 } else { 7361 ctsio->residual = 0; 7362 ctsio->kern_data_len = alloc_len; 7363 ctsio->kern_total_len = alloc_len; 7364 } 7365 ctsio->kern_data_resid = 0; 7366 ctsio->kern_rel_offset = 0; 7367 7368 switch (cdb->options & RSO_OPTIONS_MASK) { 7369 case RSO_OPTIONS_ALL: 7370 all = (struct scsi_report_supported_opcodes_all *) 7371 ctsio->kern_data_ptr; 7372 num = 0; 7373 for (i = 0; i < 256; i++) { 7374 entry = &ctl_cmd_table[i]; 7375 if (entry->flags & CTL_CMD_FLAG_SA5) { 7376 for (j = 0; j < 32; j++) { 7377 sentry = &((const struct ctl_cmd_entry *) 7378 entry->execute)[j]; 7379 if (!ctl_cmd_applicable( 7380 lun->be_lun->lun_type, sentry)) 7381 continue; 7382 descr = &all->descr[num++]; 7383 descr->opcode = i; 7384 scsi_ulto2b(j, descr->service_action); 7385 descr->flags = RSO_SERVACTV; 7386 scsi_ulto2b(sentry->length, 7387 descr->cdb_length); 7388 } 7389 } else { 7390 if (!ctl_cmd_applicable(lun->be_lun->lun_type, 7391 entry)) 7392 continue; 7393 descr = &all->descr[num++]; 7394 descr->opcode = i; 7395 scsi_ulto2b(0, descr->service_action); 7396 descr->flags = 0; 7397 scsi_ulto2b(entry->length, descr->cdb_length); 7398 } 7399 } 7400 scsi_ulto4b( 7401 num * sizeof(struct scsi_report_supported_opcodes_descr), 7402 all->length); 7403 break; 7404 case RSO_OPTIONS_OC: 7405 one = (struct scsi_report_supported_opcodes_one *) 7406 ctsio->kern_data_ptr; 7407 entry = &ctl_cmd_table[opcode]; 7408 goto fill_one; 7409 case RSO_OPTIONS_OC_SA: 7410 one = (struct scsi_report_supported_opcodes_one *) 7411 ctsio->kern_data_ptr; 7412 entry = &ctl_cmd_table[opcode]; 7413 entry = &((const struct ctl_cmd_entry *) 7414 entry->execute)[service_action]; 7415fill_one: 7416 if (ctl_cmd_applicable(lun->be_lun->lun_type, entry)) { 7417 one->support = 3; 7418 scsi_ulto2b(entry->length, one->cdb_length); 7419 one->cdb_usage[0] = opcode; 7420 memcpy(&one->cdb_usage[1], entry->usage, 7421 entry->length - 1); 7422 } else 7423 one->support = 1; 7424 break; 7425 case RSO_OPTIONS_OC_ASA: 7426 one = (struct scsi_report_supported_opcodes_one *) 7427 ctsio->kern_data_ptr; 7428 entry = &ctl_cmd_table[opcode]; 7429 if (entry->flags & CTL_CMD_FLAG_SA5) { 7430 entry = &((const struct ctl_cmd_entry *) 7431 entry->execute)[service_action]; 7432 } else if (service_action != 0) { 7433 one->support = 1; 7434 break; 7435 } 7436 goto fill_one; 7437 } 7438 7439 ctl_set_success(ctsio); 7440 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7441 ctsio->be_move_done = ctl_config_move_done; 7442 ctl_datamove((union ctl_io *)ctsio); 7443 return(retval); 7444} 7445 7446int 7447ctl_report_supported_tmf(struct ctl_scsiio *ctsio) 7448{ 7449 struct scsi_report_supported_tmf *cdb; 7450 struct scsi_report_supported_tmf_ext_data *data; 7451 int retval; 7452 int alloc_len, total_len; 7453 7454 CTL_DEBUG_PRINT(("ctl_report_supported_tmf\n")); 7455 7456 cdb = (struct scsi_report_supported_tmf *)ctsio->cdb; 7457 7458 retval = CTL_RETVAL_COMPLETE; 7459 7460 if (cdb->options & RST_REPD) 7461 total_len = sizeof(struct scsi_report_supported_tmf_ext_data); 7462 else 7463 total_len = sizeof(struct scsi_report_supported_tmf_data); 7464 alloc_len = scsi_4btoul(cdb->length); 7465 7466 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7467 7468 ctsio->kern_sg_entries = 0; 7469 7470 if (total_len < alloc_len) { 7471 ctsio->residual = alloc_len - total_len; 7472 ctsio->kern_data_len = total_len; 7473 ctsio->kern_total_len = total_len; 7474 } else { 7475 ctsio->residual = 0; 7476 ctsio->kern_data_len = alloc_len; 7477 ctsio->kern_total_len = alloc_len; 7478 } 7479 ctsio->kern_data_resid = 0; 7480 ctsio->kern_rel_offset = 0; 7481 7482 data = (struct scsi_report_supported_tmf_ext_data *)ctsio->kern_data_ptr; 7483 data->byte1 |= RST_ATS | RST_ATSS | RST_CTSS | RST_LURS | RST_QTS | 7484 RST_TRS; 7485 data->byte2 |= RST_QAES | RST_QTSS | RST_ITNRS; 7486 data->length = total_len - 4; 7487 7488 ctl_set_success(ctsio); 7489 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7490 ctsio->be_move_done = ctl_config_move_done; 7491 ctl_datamove((union ctl_io *)ctsio); 7492 return (retval); 7493} 7494 7495int 7496ctl_report_timestamp(struct ctl_scsiio *ctsio) 7497{ 7498 struct scsi_report_timestamp *cdb; 7499 struct scsi_report_timestamp_data *data; 7500 struct timeval tv; 7501 int64_t timestamp; 7502 int retval; 7503 int alloc_len, total_len; 7504 7505 CTL_DEBUG_PRINT(("ctl_report_timestamp\n")); 7506 7507 cdb = (struct scsi_report_timestamp *)ctsio->cdb; 7508 7509 retval = CTL_RETVAL_COMPLETE; 7510 7511 total_len = sizeof(struct scsi_report_timestamp_data); 7512 alloc_len = scsi_4btoul(cdb->length); 7513 7514 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7515 7516 ctsio->kern_sg_entries = 0; 7517 7518 if (total_len < alloc_len) { 7519 ctsio->residual = alloc_len - total_len; 7520 ctsio->kern_data_len = total_len; 7521 ctsio->kern_total_len = total_len; 7522 } else { 7523 ctsio->residual = 0; 7524 ctsio->kern_data_len = alloc_len; 7525 ctsio->kern_total_len = alloc_len; 7526 } 7527 ctsio->kern_data_resid = 0; 7528 ctsio->kern_rel_offset = 0; 7529 7530 data = (struct scsi_report_timestamp_data *)ctsio->kern_data_ptr; 7531 scsi_ulto2b(sizeof(*data) - 2, data->length); 7532 data->origin = RTS_ORIG_OUTSIDE; 7533 getmicrotime(&tv); 7534 timestamp = (int64_t)tv.tv_sec * 1000 + tv.tv_usec / 1000; 7535 scsi_ulto4b(timestamp >> 16, data->timestamp); 7536 scsi_ulto2b(timestamp & 0xffff, &data->timestamp[4]); 7537 7538 ctl_set_success(ctsio); 7539 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7540 ctsio->be_move_done = ctl_config_move_done; 7541 ctl_datamove((union ctl_io *)ctsio); 7542 return (retval); 7543} 7544 7545int 7546ctl_persistent_reserve_in(struct ctl_scsiio *ctsio) 7547{ 7548 struct scsi_per_res_in *cdb; 7549 int alloc_len, total_len = 0; 7550 /* struct scsi_per_res_in_rsrv in_data; */ 7551 struct ctl_lun *lun; 7552 struct ctl_softc *softc; 7553 uint64_t key; 7554 7555 CTL_DEBUG_PRINT(("ctl_persistent_reserve_in\n")); 7556 7557 cdb = (struct scsi_per_res_in *)ctsio->cdb; 7558 7559 alloc_len = scsi_2btoul(cdb->length); 7560 7561 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7562 softc = lun->ctl_softc; 7563 7564retry: 7565 mtx_lock(&lun->lun_lock); 7566 switch (cdb->action) { 7567 case SPRI_RK: /* read keys */ 7568 total_len = sizeof(struct scsi_per_res_in_keys) + 7569 lun->pr_key_count * 7570 sizeof(struct scsi_per_res_key); 7571 break; 7572 case SPRI_RR: /* read reservation */ 7573 if (lun->flags & CTL_LUN_PR_RESERVED) 7574 total_len = sizeof(struct scsi_per_res_in_rsrv); 7575 else 7576 total_len = sizeof(struct scsi_per_res_in_header); 7577 break; 7578 case SPRI_RC: /* report capabilities */ 7579 total_len = sizeof(struct scsi_per_res_cap); 7580 break; 7581 case SPRI_RS: /* read full status */ 7582 total_len = sizeof(struct scsi_per_res_in_header) + 7583 (sizeof(struct scsi_per_res_in_full_desc) + 256) * 7584 lun->pr_key_count; 7585 break; 7586 default: 7587 panic("%s: Invalid PR type %#x", __func__, cdb->action); 7588 } 7589 mtx_unlock(&lun->lun_lock); 7590 7591 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7592 7593 if (total_len < alloc_len) { 7594 ctsio->residual = alloc_len - total_len; 7595 ctsio->kern_data_len = total_len; 7596 ctsio->kern_total_len = total_len; 7597 } else { 7598 ctsio->residual = 0; 7599 ctsio->kern_data_len = alloc_len; 7600 ctsio->kern_total_len = alloc_len; 7601 } 7602 7603 ctsio->kern_data_resid = 0; 7604 ctsio->kern_rel_offset = 0; 7605 ctsio->kern_sg_entries = 0; 7606 7607 mtx_lock(&lun->lun_lock); 7608 switch (cdb->action) { 7609 case SPRI_RK: { // read keys 7610 struct scsi_per_res_in_keys *res_keys; 7611 int i, key_count; 7612 7613 res_keys = (struct scsi_per_res_in_keys*)ctsio->kern_data_ptr; 7614 7615 /* 7616 * We had to drop the lock to allocate our buffer, which 7617 * leaves time for someone to come in with another 7618 * persistent reservation. (That is unlikely, though, 7619 * since this should be the only persistent reservation 7620 * command active right now.) 7621 */ 7622 if (total_len != (sizeof(struct scsi_per_res_in_keys) + 7623 (lun->pr_key_count * 7624 sizeof(struct scsi_per_res_key)))){ 7625 mtx_unlock(&lun->lun_lock); 7626 free(ctsio->kern_data_ptr, M_CTL); 7627 printf("%s: reservation length changed, retrying\n", 7628 __func__); 7629 goto retry; 7630 } 7631 7632 scsi_ulto4b(lun->pr_generation, res_keys->header.generation); 7633 7634 scsi_ulto4b(sizeof(struct scsi_per_res_key) * 7635 lun->pr_key_count, res_keys->header.length); 7636 7637 for (i = 0, key_count = 0; i < CTL_MAX_INITIATORS; i++) { 7638 if ((key = ctl_get_prkey(lun, i)) == 0) 7639 continue; 7640 7641 /* 7642 * We used lun->pr_key_count to calculate the 7643 * size to allocate. If it turns out the number of 7644 * initiators with the registered flag set is 7645 * larger than that (i.e. they haven't been kept in 7646 * sync), we've got a problem. 7647 */ 7648 if (key_count >= lun->pr_key_count) { 7649 key_count++; 7650 continue; 7651 } 7652 scsi_u64to8b(key, res_keys->keys[key_count].key); 7653 key_count++; 7654 } 7655 break; 7656 } 7657 case SPRI_RR: { // read reservation 7658 struct scsi_per_res_in_rsrv *res; 7659 int tmp_len, header_only; 7660 7661 res = (struct scsi_per_res_in_rsrv *)ctsio->kern_data_ptr; 7662 7663 scsi_ulto4b(lun->pr_generation, res->header.generation); 7664 7665 if (lun->flags & CTL_LUN_PR_RESERVED) 7666 { 7667 tmp_len = sizeof(struct scsi_per_res_in_rsrv); 7668 scsi_ulto4b(sizeof(struct scsi_per_res_in_rsrv_data), 7669 res->header.length); 7670 header_only = 0; 7671 } else { 7672 tmp_len = sizeof(struct scsi_per_res_in_header); 7673 scsi_ulto4b(0, res->header.length); 7674 header_only = 1; 7675 } 7676 7677 /* 7678 * We had to drop the lock to allocate our buffer, which 7679 * leaves time for someone to come in with another 7680 * persistent reservation. (That is unlikely, though, 7681 * since this should be the only persistent reservation 7682 * command active right now.) 7683 */ 7684 if (tmp_len != total_len) { 7685 mtx_unlock(&lun->lun_lock); 7686 free(ctsio->kern_data_ptr, M_CTL); 7687 printf("%s: reservation status changed, retrying\n", 7688 __func__); 7689 goto retry; 7690 } 7691 7692 /* 7693 * No reservation held, so we're done. 7694 */ 7695 if (header_only != 0) 7696 break; 7697 7698 /* 7699 * If the registration is an All Registrants type, the key 7700 * is 0, since it doesn't really matter. 7701 */ 7702 if (lun->pr_res_idx != CTL_PR_ALL_REGISTRANTS) { 7703 scsi_u64to8b(ctl_get_prkey(lun, lun->pr_res_idx), 7704 res->data.reservation); 7705 } 7706 res->data.scopetype = lun->pr_res_type; 7707 break; 7708 } 7709 case SPRI_RC: //report capabilities 7710 { 7711 struct scsi_per_res_cap *res_cap; 7712 uint16_t type_mask; 7713 7714 res_cap = (struct scsi_per_res_cap *)ctsio->kern_data_ptr; 7715 scsi_ulto2b(sizeof(*res_cap), res_cap->length); 7716 res_cap->flags1 = SPRI_CRH; 7717 res_cap->flags2 = SPRI_TMV | SPRI_ALLOW_5; 7718 type_mask = SPRI_TM_WR_EX_AR | 7719 SPRI_TM_EX_AC_RO | 7720 SPRI_TM_WR_EX_RO | 7721 SPRI_TM_EX_AC | 7722 SPRI_TM_WR_EX | 7723 SPRI_TM_EX_AC_AR; 7724 scsi_ulto2b(type_mask, res_cap->type_mask); 7725 break; 7726 } 7727 case SPRI_RS: { // read full status 7728 struct scsi_per_res_in_full *res_status; 7729 struct scsi_per_res_in_full_desc *res_desc; 7730 struct ctl_port *port; 7731 int i, len; 7732 7733 res_status = (struct scsi_per_res_in_full*)ctsio->kern_data_ptr; 7734 7735 /* 7736 * We had to drop the lock to allocate our buffer, which 7737 * leaves time for someone to come in with another 7738 * persistent reservation. (That is unlikely, though, 7739 * since this should be the only persistent reservation 7740 * command active right now.) 7741 */ 7742 if (total_len < (sizeof(struct scsi_per_res_in_header) + 7743 (sizeof(struct scsi_per_res_in_full_desc) + 256) * 7744 lun->pr_key_count)){ 7745 mtx_unlock(&lun->lun_lock); 7746 free(ctsio->kern_data_ptr, M_CTL); 7747 printf("%s: reservation length changed, retrying\n", 7748 __func__); 7749 goto retry; 7750 } 7751 7752 scsi_ulto4b(lun->pr_generation, res_status->header.generation); 7753 7754 res_desc = &res_status->desc[0]; 7755 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 7756 if ((key = ctl_get_prkey(lun, i)) == 0) 7757 continue; 7758 7759 scsi_u64to8b(key, res_desc->res_key.key); 7760 if ((lun->flags & CTL_LUN_PR_RESERVED) && 7761 (lun->pr_res_idx == i || 7762 lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS)) { 7763 res_desc->flags = SPRI_FULL_R_HOLDER; 7764 res_desc->scopetype = lun->pr_res_type; 7765 } 7766 scsi_ulto2b(i / CTL_MAX_INIT_PER_PORT, 7767 res_desc->rel_trgt_port_id); 7768 len = 0; 7769 port = softc->ctl_ports[i / CTL_MAX_INIT_PER_PORT]; 7770 if (port != NULL) 7771 len = ctl_create_iid(port, 7772 i % CTL_MAX_INIT_PER_PORT, 7773 res_desc->transport_id); 7774 scsi_ulto4b(len, res_desc->additional_length); 7775 res_desc = (struct scsi_per_res_in_full_desc *) 7776 &res_desc->transport_id[len]; 7777 } 7778 scsi_ulto4b((uint8_t *)res_desc - (uint8_t *)&res_status->desc[0], 7779 res_status->header.length); 7780 break; 7781 } 7782 default: 7783 panic("%s: Invalid PR type %#x", __func__, cdb->action); 7784 } 7785 mtx_unlock(&lun->lun_lock); 7786 7787 ctl_set_success(ctsio); 7788 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7789 ctsio->be_move_done = ctl_config_move_done; 7790 ctl_datamove((union ctl_io *)ctsio); 7791 return (CTL_RETVAL_COMPLETE); 7792} 7793 7794/* 7795 * Returns 0 if ctl_persistent_reserve_out() should continue, non-zero if 7796 * it should return. 7797 */ 7798static int 7799ctl_pro_preempt(struct ctl_softc *softc, struct ctl_lun *lun, uint64_t res_key, 7800 uint64_t sa_res_key, uint8_t type, uint32_t residx, 7801 struct ctl_scsiio *ctsio, struct scsi_per_res_out *cdb, 7802 struct scsi_per_res_out_parms* param) 7803{ 7804 union ctl_ha_msg persis_io; 7805 int i; 7806 7807 mtx_lock(&lun->lun_lock); 7808 if (sa_res_key == 0) { 7809 if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS) { 7810 /* validate scope and type */ 7811 if ((cdb->scope_type & SPR_SCOPE_MASK) != 7812 SPR_LU_SCOPE) { 7813 mtx_unlock(&lun->lun_lock); 7814 ctl_set_invalid_field(/*ctsio*/ ctsio, 7815 /*sks_valid*/ 1, 7816 /*command*/ 1, 7817 /*field*/ 2, 7818 /*bit_valid*/ 1, 7819 /*bit*/ 4); 7820 ctl_done((union ctl_io *)ctsio); 7821 return (1); 7822 } 7823 7824 if (type>8 || type==2 || type==4 || type==0) { 7825 mtx_unlock(&lun->lun_lock); 7826 ctl_set_invalid_field(/*ctsio*/ ctsio, 7827 /*sks_valid*/ 1, 7828 /*command*/ 1, 7829 /*field*/ 2, 7830 /*bit_valid*/ 1, 7831 /*bit*/ 0); 7832 ctl_done((union ctl_io *)ctsio); 7833 return (1); 7834 } 7835 7836 /* 7837 * Unregister everybody else and build UA for 7838 * them 7839 */ 7840 for(i = 0; i < CTL_MAX_INITIATORS; i++) { 7841 if (i == residx || ctl_get_prkey(lun, i) == 0) 7842 continue; 7843 7844 ctl_clr_prkey(lun, i); 7845 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 7846 } 7847 lun->pr_key_count = 1; 7848 lun->pr_res_type = type; 7849 if (lun->pr_res_type != SPR_TYPE_WR_EX_AR && 7850 lun->pr_res_type != SPR_TYPE_EX_AC_AR) 7851 lun->pr_res_idx = residx; 7852 lun->pr_generation++; 7853 mtx_unlock(&lun->lun_lock); 7854 7855 /* send msg to other side */ 7856 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 7857 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 7858 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 7859 persis_io.pr.pr_info.residx = lun->pr_res_idx; 7860 persis_io.pr.pr_info.res_type = type; 7861 memcpy(persis_io.pr.pr_info.sa_res_key, 7862 param->serv_act_res_key, 7863 sizeof(param->serv_act_res_key)); 7864 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 7865 sizeof(persis_io.pr), M_WAITOK); 7866 } else { 7867 /* not all registrants */ 7868 mtx_unlock(&lun->lun_lock); 7869 free(ctsio->kern_data_ptr, M_CTL); 7870 ctl_set_invalid_field(ctsio, 7871 /*sks_valid*/ 1, 7872 /*command*/ 0, 7873 /*field*/ 8, 7874 /*bit_valid*/ 0, 7875 /*bit*/ 0); 7876 ctl_done((union ctl_io *)ctsio); 7877 return (1); 7878 } 7879 } else if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS 7880 || !(lun->flags & CTL_LUN_PR_RESERVED)) { 7881 int found = 0; 7882 7883 if (res_key == sa_res_key) { 7884 /* special case */ 7885 /* 7886 * The spec implies this is not good but doesn't 7887 * say what to do. There are two choices either 7888 * generate a res conflict or check condition 7889 * with illegal field in parameter data. Since 7890 * that is what is done when the sa_res_key is 7891 * zero I'll take that approach since this has 7892 * to do with the sa_res_key. 7893 */ 7894 mtx_unlock(&lun->lun_lock); 7895 free(ctsio->kern_data_ptr, M_CTL); 7896 ctl_set_invalid_field(ctsio, 7897 /*sks_valid*/ 1, 7898 /*command*/ 0, 7899 /*field*/ 8, 7900 /*bit_valid*/ 0, 7901 /*bit*/ 0); 7902 ctl_done((union ctl_io *)ctsio); 7903 return (1); 7904 } 7905 7906 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 7907 if (ctl_get_prkey(lun, i) != sa_res_key) 7908 continue; 7909 7910 found = 1; 7911 ctl_clr_prkey(lun, i); 7912 lun->pr_key_count--; 7913 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 7914 } 7915 if (!found) { 7916 mtx_unlock(&lun->lun_lock); 7917 free(ctsio->kern_data_ptr, M_CTL); 7918 ctl_set_reservation_conflict(ctsio); 7919 ctl_done((union ctl_io *)ctsio); 7920 return (CTL_RETVAL_COMPLETE); 7921 } 7922 lun->pr_generation++; 7923 mtx_unlock(&lun->lun_lock); 7924 7925 /* send msg to other side */ 7926 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 7927 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 7928 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 7929 persis_io.pr.pr_info.residx = lun->pr_res_idx; 7930 persis_io.pr.pr_info.res_type = type; 7931 memcpy(persis_io.pr.pr_info.sa_res_key, 7932 param->serv_act_res_key, 7933 sizeof(param->serv_act_res_key)); 7934 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 7935 sizeof(persis_io.pr), M_WAITOK); 7936 } else { 7937 /* Reserved but not all registrants */ 7938 /* sa_res_key is res holder */ 7939 if (sa_res_key == ctl_get_prkey(lun, lun->pr_res_idx)) { 7940 /* validate scope and type */ 7941 if ((cdb->scope_type & SPR_SCOPE_MASK) != 7942 SPR_LU_SCOPE) { 7943 mtx_unlock(&lun->lun_lock); 7944 ctl_set_invalid_field(/*ctsio*/ ctsio, 7945 /*sks_valid*/ 1, 7946 /*command*/ 1, 7947 /*field*/ 2, 7948 /*bit_valid*/ 1, 7949 /*bit*/ 4); 7950 ctl_done((union ctl_io *)ctsio); 7951 return (1); 7952 } 7953 7954 if (type>8 || type==2 || type==4 || type==0) { 7955 mtx_unlock(&lun->lun_lock); 7956 ctl_set_invalid_field(/*ctsio*/ ctsio, 7957 /*sks_valid*/ 1, 7958 /*command*/ 1, 7959 /*field*/ 2, 7960 /*bit_valid*/ 1, 7961 /*bit*/ 0); 7962 ctl_done((union ctl_io *)ctsio); 7963 return (1); 7964 } 7965 7966 /* 7967 * Do the following: 7968 * if sa_res_key != res_key remove all 7969 * registrants w/sa_res_key and generate UA 7970 * for these registrants(Registrations 7971 * Preempted) if it wasn't an exclusive 7972 * reservation generate UA(Reservations 7973 * Preempted) for all other registered nexuses 7974 * if the type has changed. Establish the new 7975 * reservation and holder. If res_key and 7976 * sa_res_key are the same do the above 7977 * except don't unregister the res holder. 7978 */ 7979 7980 for(i = 0; i < CTL_MAX_INITIATORS; i++) { 7981 if (i == residx || ctl_get_prkey(lun, i) == 0) 7982 continue; 7983 7984 if (sa_res_key == ctl_get_prkey(lun, i)) { 7985 ctl_clr_prkey(lun, i); 7986 lun->pr_key_count--; 7987 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 7988 } else if (type != lun->pr_res_type && 7989 (lun->pr_res_type == SPR_TYPE_WR_EX_RO || 7990 lun->pr_res_type == SPR_TYPE_EX_AC_RO)) { 7991 ctl_est_ua(lun, i, CTL_UA_RES_RELEASE); 7992 } 7993 } 7994 lun->pr_res_type = type; 7995 if (lun->pr_res_type != SPR_TYPE_WR_EX_AR && 7996 lun->pr_res_type != SPR_TYPE_EX_AC_AR) 7997 lun->pr_res_idx = residx; 7998 else 7999 lun->pr_res_idx = CTL_PR_ALL_REGISTRANTS; 8000 lun->pr_generation++; 8001 mtx_unlock(&lun->lun_lock); 8002 8003 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8004 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8005 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 8006 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8007 persis_io.pr.pr_info.res_type = type; 8008 memcpy(persis_io.pr.pr_info.sa_res_key, 8009 param->serv_act_res_key, 8010 sizeof(param->serv_act_res_key)); 8011 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8012 sizeof(persis_io.pr), M_WAITOK); 8013 } else { 8014 /* 8015 * sa_res_key is not the res holder just 8016 * remove registrants 8017 */ 8018 int found=0; 8019 8020 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 8021 if (sa_res_key != ctl_get_prkey(lun, i)) 8022 continue; 8023 8024 found = 1; 8025 ctl_clr_prkey(lun, i); 8026 lun->pr_key_count--; 8027 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 8028 } 8029 8030 if (!found) { 8031 mtx_unlock(&lun->lun_lock); 8032 free(ctsio->kern_data_ptr, M_CTL); 8033 ctl_set_reservation_conflict(ctsio); 8034 ctl_done((union ctl_io *)ctsio); 8035 return (1); 8036 } 8037 lun->pr_generation++; 8038 mtx_unlock(&lun->lun_lock); 8039 8040 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8041 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8042 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 8043 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8044 persis_io.pr.pr_info.res_type = type; 8045 memcpy(persis_io.pr.pr_info.sa_res_key, 8046 param->serv_act_res_key, 8047 sizeof(param->serv_act_res_key)); 8048 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8049 sizeof(persis_io.pr), M_WAITOK); 8050 } 8051 } 8052 return (0); 8053} 8054 8055static void 8056ctl_pro_preempt_other(struct ctl_lun *lun, union ctl_ha_msg *msg) 8057{ 8058 uint64_t sa_res_key; 8059 int i; 8060 8061 sa_res_key = scsi_8btou64(msg->pr.pr_info.sa_res_key); 8062 8063 if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS 8064 || lun->pr_res_idx == CTL_PR_NO_RESERVATION 8065 || sa_res_key != ctl_get_prkey(lun, lun->pr_res_idx)) { 8066 if (sa_res_key == 0) { 8067 /* 8068 * Unregister everybody else and build UA for 8069 * them 8070 */ 8071 for(i = 0; i < CTL_MAX_INITIATORS; i++) { 8072 if (i == msg->pr.pr_info.residx || 8073 ctl_get_prkey(lun, i) == 0) 8074 continue; 8075 8076 ctl_clr_prkey(lun, i); 8077 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 8078 } 8079 8080 lun->pr_key_count = 1; 8081 lun->pr_res_type = msg->pr.pr_info.res_type; 8082 if (lun->pr_res_type != SPR_TYPE_WR_EX_AR && 8083 lun->pr_res_type != SPR_TYPE_EX_AC_AR) 8084 lun->pr_res_idx = msg->pr.pr_info.residx; 8085 } else { 8086 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 8087 if (sa_res_key == ctl_get_prkey(lun, i)) 8088 continue; 8089 8090 ctl_clr_prkey(lun, i); 8091 lun->pr_key_count--; 8092 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 8093 } 8094 } 8095 } else { 8096 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 8097 if (i == msg->pr.pr_info.residx || 8098 ctl_get_prkey(lun, i) == 0) 8099 continue; 8100 8101 if (sa_res_key == ctl_get_prkey(lun, i)) { 8102 ctl_clr_prkey(lun, i); 8103 lun->pr_key_count--; 8104 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 8105 } else if (msg->pr.pr_info.res_type != lun->pr_res_type 8106 && (lun->pr_res_type == SPR_TYPE_WR_EX_RO || 8107 lun->pr_res_type == SPR_TYPE_EX_AC_RO)) { 8108 ctl_est_ua(lun, i, CTL_UA_RES_RELEASE); 8109 } 8110 } 8111 lun->pr_res_type = msg->pr.pr_info.res_type; 8112 if (lun->pr_res_type != SPR_TYPE_WR_EX_AR && 8113 lun->pr_res_type != SPR_TYPE_EX_AC_AR) 8114 lun->pr_res_idx = msg->pr.pr_info.residx; 8115 else 8116 lun->pr_res_idx = CTL_PR_ALL_REGISTRANTS; 8117 } 8118 lun->pr_generation++; 8119 8120} 8121 8122 8123int 8124ctl_persistent_reserve_out(struct ctl_scsiio *ctsio) 8125{ 8126 int retval; 8127 u_int32_t param_len; 8128 struct scsi_per_res_out *cdb; 8129 struct ctl_lun *lun; 8130 struct scsi_per_res_out_parms* param; 8131 struct ctl_softc *softc; 8132 uint32_t residx; 8133 uint64_t res_key, sa_res_key, key; 8134 uint8_t type; 8135 union ctl_ha_msg persis_io; 8136 int i; 8137 8138 CTL_DEBUG_PRINT(("ctl_persistent_reserve_out\n")); 8139 8140 retval = CTL_RETVAL_COMPLETE; 8141 8142 cdb = (struct scsi_per_res_out *)ctsio->cdb; 8143 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 8144 softc = lun->ctl_softc; 8145 8146 /* 8147 * We only support whole-LUN scope. The scope & type are ignored for 8148 * register, register and ignore existing key and clear. 8149 * We sometimes ignore scope and type on preempts too!! 8150 * Verify reservation type here as well. 8151 */ 8152 type = cdb->scope_type & SPR_TYPE_MASK; 8153 if ((cdb->action == SPRO_RESERVE) 8154 || (cdb->action == SPRO_RELEASE)) { 8155 if ((cdb->scope_type & SPR_SCOPE_MASK) != SPR_LU_SCOPE) { 8156 ctl_set_invalid_field(/*ctsio*/ ctsio, 8157 /*sks_valid*/ 1, 8158 /*command*/ 1, 8159 /*field*/ 2, 8160 /*bit_valid*/ 1, 8161 /*bit*/ 4); 8162 ctl_done((union ctl_io *)ctsio); 8163 return (CTL_RETVAL_COMPLETE); 8164 } 8165 8166 if (type>8 || type==2 || type==4 || type==0) { 8167 ctl_set_invalid_field(/*ctsio*/ ctsio, 8168 /*sks_valid*/ 1, 8169 /*command*/ 1, 8170 /*field*/ 2, 8171 /*bit_valid*/ 1, 8172 /*bit*/ 0); 8173 ctl_done((union ctl_io *)ctsio); 8174 return (CTL_RETVAL_COMPLETE); 8175 } 8176 } 8177 8178 param_len = scsi_4btoul(cdb->length); 8179 8180 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 8181 ctsio->kern_data_ptr = malloc(param_len, M_CTL, M_WAITOK); 8182 ctsio->kern_data_len = param_len; 8183 ctsio->kern_total_len = param_len; 8184 ctsio->kern_data_resid = 0; 8185 ctsio->kern_rel_offset = 0; 8186 ctsio->kern_sg_entries = 0; 8187 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 8188 ctsio->be_move_done = ctl_config_move_done; 8189 ctl_datamove((union ctl_io *)ctsio); 8190 8191 return (CTL_RETVAL_COMPLETE); 8192 } 8193 8194 param = (struct scsi_per_res_out_parms *)ctsio->kern_data_ptr; 8195 8196 residx = ctl_get_initindex(&ctsio->io_hdr.nexus); 8197 res_key = scsi_8btou64(param->res_key.key); 8198 sa_res_key = scsi_8btou64(param->serv_act_res_key); 8199 8200 /* 8201 * Validate the reservation key here except for SPRO_REG_IGNO 8202 * This must be done for all other service actions 8203 */ 8204 if ((cdb->action & SPRO_ACTION_MASK) != SPRO_REG_IGNO) { 8205 mtx_lock(&lun->lun_lock); 8206 if ((key = ctl_get_prkey(lun, residx)) != 0) { 8207 if (res_key != key) { 8208 /* 8209 * The current key passed in doesn't match 8210 * the one the initiator previously 8211 * registered. 8212 */ 8213 mtx_unlock(&lun->lun_lock); 8214 free(ctsio->kern_data_ptr, M_CTL); 8215 ctl_set_reservation_conflict(ctsio); 8216 ctl_done((union ctl_io *)ctsio); 8217 return (CTL_RETVAL_COMPLETE); 8218 } 8219 } else if ((cdb->action & SPRO_ACTION_MASK) != SPRO_REGISTER) { 8220 /* 8221 * We are not registered 8222 */ 8223 mtx_unlock(&lun->lun_lock); 8224 free(ctsio->kern_data_ptr, M_CTL); 8225 ctl_set_reservation_conflict(ctsio); 8226 ctl_done((union ctl_io *)ctsio); 8227 return (CTL_RETVAL_COMPLETE); 8228 } else if (res_key != 0) { 8229 /* 8230 * We are not registered and trying to register but 8231 * the register key isn't zero. 8232 */ 8233 mtx_unlock(&lun->lun_lock); 8234 free(ctsio->kern_data_ptr, M_CTL); 8235 ctl_set_reservation_conflict(ctsio); 8236 ctl_done((union ctl_io *)ctsio); 8237 return (CTL_RETVAL_COMPLETE); 8238 } 8239 mtx_unlock(&lun->lun_lock); 8240 } 8241 8242 switch (cdb->action & SPRO_ACTION_MASK) { 8243 case SPRO_REGISTER: 8244 case SPRO_REG_IGNO: { 8245 8246#if 0 8247 printf("Registration received\n"); 8248#endif 8249 8250 /* 8251 * We don't support any of these options, as we report in 8252 * the read capabilities request (see 8253 * ctl_persistent_reserve_in(), above). 8254 */ 8255 if ((param->flags & SPR_SPEC_I_PT) 8256 || (param->flags & SPR_ALL_TG_PT) 8257 || (param->flags & SPR_APTPL)) { 8258 int bit_ptr; 8259 8260 if (param->flags & SPR_APTPL) 8261 bit_ptr = 0; 8262 else if (param->flags & SPR_ALL_TG_PT) 8263 bit_ptr = 2; 8264 else /* SPR_SPEC_I_PT */ 8265 bit_ptr = 3; 8266 8267 free(ctsio->kern_data_ptr, M_CTL); 8268 ctl_set_invalid_field(ctsio, 8269 /*sks_valid*/ 1, 8270 /*command*/ 0, 8271 /*field*/ 20, 8272 /*bit_valid*/ 1, 8273 /*bit*/ bit_ptr); 8274 ctl_done((union ctl_io *)ctsio); 8275 return (CTL_RETVAL_COMPLETE); 8276 } 8277 8278 mtx_lock(&lun->lun_lock); 8279 8280 /* 8281 * The initiator wants to clear the 8282 * key/unregister. 8283 */ 8284 if (sa_res_key == 0) { 8285 if ((res_key == 0 8286 && (cdb->action & SPRO_ACTION_MASK) == SPRO_REGISTER) 8287 || ((cdb->action & SPRO_ACTION_MASK) == SPRO_REG_IGNO 8288 && ctl_get_prkey(lun, residx) == 0)) { 8289 mtx_unlock(&lun->lun_lock); 8290 goto done; 8291 } 8292 8293 ctl_clr_prkey(lun, residx); 8294 lun->pr_key_count--; 8295 8296 if (residx == lun->pr_res_idx) { 8297 lun->flags &= ~CTL_LUN_PR_RESERVED; 8298 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8299 8300 if ((lun->pr_res_type == SPR_TYPE_WR_EX_RO || 8301 lun->pr_res_type == SPR_TYPE_EX_AC_RO) && 8302 lun->pr_key_count) { 8303 /* 8304 * If the reservation is a registrants 8305 * only type we need to generate a UA 8306 * for other registered inits. The 8307 * sense code should be RESERVATIONS 8308 * RELEASED 8309 */ 8310 8311 for (i = softc->init_min; i < softc->init_max; i++){ 8312 if (ctl_get_prkey(lun, i) == 0) 8313 continue; 8314 ctl_est_ua(lun, i, 8315 CTL_UA_RES_RELEASE); 8316 } 8317 } 8318 lun->pr_res_type = 0; 8319 } else if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS) { 8320 if (lun->pr_key_count==0) { 8321 lun->flags &= ~CTL_LUN_PR_RESERVED; 8322 lun->pr_res_type = 0; 8323 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8324 } 8325 } 8326 lun->pr_generation++; 8327 mtx_unlock(&lun->lun_lock); 8328 8329 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8330 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8331 persis_io.pr.pr_info.action = CTL_PR_UNREG_KEY; 8332 persis_io.pr.pr_info.residx = residx; 8333 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8334 sizeof(persis_io.pr), M_WAITOK); 8335 } else /* sa_res_key != 0 */ { 8336 8337 /* 8338 * If we aren't registered currently then increment 8339 * the key count and set the registered flag. 8340 */ 8341 ctl_alloc_prkey(lun, residx); 8342 if (ctl_get_prkey(lun, residx) == 0) 8343 lun->pr_key_count++; 8344 ctl_set_prkey(lun, residx, sa_res_key); 8345 lun->pr_generation++; 8346 mtx_unlock(&lun->lun_lock); 8347 8348 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8349 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8350 persis_io.pr.pr_info.action = CTL_PR_REG_KEY; 8351 persis_io.pr.pr_info.residx = residx; 8352 memcpy(persis_io.pr.pr_info.sa_res_key, 8353 param->serv_act_res_key, 8354 sizeof(param->serv_act_res_key)); 8355 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8356 sizeof(persis_io.pr), M_WAITOK); 8357 } 8358 8359 break; 8360 } 8361 case SPRO_RESERVE: 8362#if 0 8363 printf("Reserve executed type %d\n", type); 8364#endif 8365 mtx_lock(&lun->lun_lock); 8366 if (lun->flags & CTL_LUN_PR_RESERVED) { 8367 /* 8368 * if this isn't the reservation holder and it's 8369 * not a "all registrants" type or if the type is 8370 * different then we have a conflict 8371 */ 8372 if ((lun->pr_res_idx != residx 8373 && lun->pr_res_idx != CTL_PR_ALL_REGISTRANTS) 8374 || lun->pr_res_type != type) { 8375 mtx_unlock(&lun->lun_lock); 8376 free(ctsio->kern_data_ptr, M_CTL); 8377 ctl_set_reservation_conflict(ctsio); 8378 ctl_done((union ctl_io *)ctsio); 8379 return (CTL_RETVAL_COMPLETE); 8380 } 8381 mtx_unlock(&lun->lun_lock); 8382 } else /* create a reservation */ { 8383 /* 8384 * If it's not an "all registrants" type record 8385 * reservation holder 8386 */ 8387 if (type != SPR_TYPE_WR_EX_AR 8388 && type != SPR_TYPE_EX_AC_AR) 8389 lun->pr_res_idx = residx; /* Res holder */ 8390 else 8391 lun->pr_res_idx = CTL_PR_ALL_REGISTRANTS; 8392 8393 lun->flags |= CTL_LUN_PR_RESERVED; 8394 lun->pr_res_type = type; 8395 8396 mtx_unlock(&lun->lun_lock); 8397 8398 /* send msg to other side */ 8399 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8400 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8401 persis_io.pr.pr_info.action = CTL_PR_RESERVE; 8402 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8403 persis_io.pr.pr_info.res_type = type; 8404 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8405 sizeof(persis_io.pr), M_WAITOK); 8406 } 8407 break; 8408 8409 case SPRO_RELEASE: 8410 mtx_lock(&lun->lun_lock); 8411 if ((lun->flags & CTL_LUN_PR_RESERVED) == 0) { 8412 /* No reservation exists return good status */ 8413 mtx_unlock(&lun->lun_lock); 8414 goto done; 8415 } 8416 /* 8417 * Is this nexus a reservation holder? 8418 */ 8419 if (lun->pr_res_idx != residx 8420 && lun->pr_res_idx != CTL_PR_ALL_REGISTRANTS) { 8421 /* 8422 * not a res holder return good status but 8423 * do nothing 8424 */ 8425 mtx_unlock(&lun->lun_lock); 8426 goto done; 8427 } 8428 8429 if (lun->pr_res_type != type) { 8430 mtx_unlock(&lun->lun_lock); 8431 free(ctsio->kern_data_ptr, M_CTL); 8432 ctl_set_illegal_pr_release(ctsio); 8433 ctl_done((union ctl_io *)ctsio); 8434 return (CTL_RETVAL_COMPLETE); 8435 } 8436 8437 /* okay to release */ 8438 lun->flags &= ~CTL_LUN_PR_RESERVED; 8439 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8440 lun->pr_res_type = 0; 8441 8442 /* 8443 * If this isn't an exclusive access reservation and NUAR 8444 * is not set, generate UA for all other registrants. 8445 */ 8446 if (type != SPR_TYPE_EX_AC && type != SPR_TYPE_WR_EX && 8447 (lun->MODE_CTRL.queue_flags & SCP_NUAR) == 0) { 8448 for (i = softc->init_min; i < softc->init_max; i++) { 8449 if (i == residx || ctl_get_prkey(lun, i) == 0) 8450 continue; 8451 ctl_est_ua(lun, i, CTL_UA_RES_RELEASE); 8452 } 8453 } 8454 mtx_unlock(&lun->lun_lock); 8455 8456 /* Send msg to other side */ 8457 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8458 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8459 persis_io.pr.pr_info.action = CTL_PR_RELEASE; 8460 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8461 sizeof(persis_io.pr), M_WAITOK); 8462 break; 8463 8464 case SPRO_CLEAR: 8465 /* send msg to other side */ 8466 8467 mtx_lock(&lun->lun_lock); 8468 lun->flags &= ~CTL_LUN_PR_RESERVED; 8469 lun->pr_res_type = 0; 8470 lun->pr_key_count = 0; 8471 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8472 8473 ctl_clr_prkey(lun, residx); 8474 for (i = 0; i < CTL_MAX_INITIATORS; i++) 8475 if (ctl_get_prkey(lun, i) != 0) { 8476 ctl_clr_prkey(lun, i); 8477 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 8478 } 8479 lun->pr_generation++; 8480 mtx_unlock(&lun->lun_lock); 8481 8482 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8483 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8484 persis_io.pr.pr_info.action = CTL_PR_CLEAR; 8485 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8486 sizeof(persis_io.pr), M_WAITOK); 8487 break; 8488 8489 case SPRO_PREEMPT: 8490 case SPRO_PRE_ABO: { 8491 int nretval; 8492 8493 nretval = ctl_pro_preempt(softc, lun, res_key, sa_res_key, type, 8494 residx, ctsio, cdb, param); 8495 if (nretval != 0) 8496 return (CTL_RETVAL_COMPLETE); 8497 break; 8498 } 8499 default: 8500 panic("%s: Invalid PR type %#x", __func__, cdb->action); 8501 } 8502 8503done: 8504 free(ctsio->kern_data_ptr, M_CTL); 8505 ctl_set_success(ctsio); 8506 ctl_done((union ctl_io *)ctsio); 8507 8508 return (retval); 8509} 8510 8511/* 8512 * This routine is for handling a message from the other SC pertaining to 8513 * persistent reserve out. All the error checking will have been done 8514 * so only perorming the action need be done here to keep the two 8515 * in sync. 8516 */ 8517static void 8518ctl_hndl_per_res_out_on_other_sc(union ctl_ha_msg *msg) 8519{ 8520 struct ctl_softc *softc = control_softc; 8521 struct ctl_lun *lun; 8522 int i; 8523 uint32_t residx, targ_lun; 8524 8525 targ_lun = msg->hdr.nexus.targ_mapped_lun; 8526 mtx_lock(&softc->ctl_lock); 8527 if (targ_lun >= CTL_MAX_LUNS || 8528 (lun = softc->ctl_luns[targ_lun]) == NULL) { 8529 mtx_unlock(&softc->ctl_lock); 8530 return; 8531 } 8532 mtx_lock(&lun->lun_lock); 8533 mtx_unlock(&softc->ctl_lock); 8534 if (lun->flags & CTL_LUN_DISABLED) { 8535 mtx_unlock(&lun->lun_lock); 8536 return; 8537 } 8538 residx = ctl_get_initindex(&msg->hdr.nexus); 8539 switch(msg->pr.pr_info.action) { 8540 case CTL_PR_REG_KEY: 8541 ctl_alloc_prkey(lun, msg->pr.pr_info.residx); 8542 if (ctl_get_prkey(lun, msg->pr.pr_info.residx) == 0) 8543 lun->pr_key_count++; 8544 ctl_set_prkey(lun, msg->pr.pr_info.residx, 8545 scsi_8btou64(msg->pr.pr_info.sa_res_key)); 8546 lun->pr_generation++; 8547 break; 8548 8549 case CTL_PR_UNREG_KEY: 8550 ctl_clr_prkey(lun, msg->pr.pr_info.residx); 8551 lun->pr_key_count--; 8552 8553 /* XXX Need to see if the reservation has been released */ 8554 /* if so do we need to generate UA? */ 8555 if (msg->pr.pr_info.residx == lun->pr_res_idx) { 8556 lun->flags &= ~CTL_LUN_PR_RESERVED; 8557 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8558 8559 if ((lun->pr_res_type == SPR_TYPE_WR_EX_RO || 8560 lun->pr_res_type == SPR_TYPE_EX_AC_RO) && 8561 lun->pr_key_count) { 8562 /* 8563 * If the reservation is a registrants 8564 * only type we need to generate a UA 8565 * for other registered inits. The 8566 * sense code should be RESERVATIONS 8567 * RELEASED 8568 */ 8569 8570 for (i = softc->init_min; i < softc->init_max; i++) { 8571 if (ctl_get_prkey(lun, i) == 0) 8572 continue; 8573 8574 ctl_est_ua(lun, i, CTL_UA_RES_RELEASE); 8575 } 8576 } 8577 lun->pr_res_type = 0; 8578 } else if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS) { 8579 if (lun->pr_key_count==0) { 8580 lun->flags &= ~CTL_LUN_PR_RESERVED; 8581 lun->pr_res_type = 0; 8582 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8583 } 8584 } 8585 lun->pr_generation++; 8586 break; 8587 8588 case CTL_PR_RESERVE: 8589 lun->flags |= CTL_LUN_PR_RESERVED; 8590 lun->pr_res_type = msg->pr.pr_info.res_type; 8591 lun->pr_res_idx = msg->pr.pr_info.residx; 8592 8593 break; 8594 8595 case CTL_PR_RELEASE: 8596 /* 8597 * If this isn't an exclusive access reservation and NUAR 8598 * is not set, generate UA for all other registrants. 8599 */ 8600 if (lun->pr_res_type != SPR_TYPE_EX_AC && 8601 lun->pr_res_type != SPR_TYPE_WR_EX && 8602 (lun->MODE_CTRL.queue_flags & SCP_NUAR) == 0) { 8603 for (i = softc->init_min; i < softc->init_max; i++) 8604 if (i == residx || ctl_get_prkey(lun, i) == 0) 8605 continue; 8606 ctl_est_ua(lun, i, CTL_UA_RES_RELEASE); 8607 } 8608 8609 lun->flags &= ~CTL_LUN_PR_RESERVED; 8610 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8611 lun->pr_res_type = 0; 8612 break; 8613 8614 case CTL_PR_PREEMPT: 8615 ctl_pro_preempt_other(lun, msg); 8616 break; 8617 case CTL_PR_CLEAR: 8618 lun->flags &= ~CTL_LUN_PR_RESERVED; 8619 lun->pr_res_type = 0; 8620 lun->pr_key_count = 0; 8621 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8622 8623 for (i=0; i < CTL_MAX_INITIATORS; i++) { 8624 if (ctl_get_prkey(lun, i) == 0) 8625 continue; 8626 ctl_clr_prkey(lun, i); 8627 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 8628 } 8629 lun->pr_generation++; 8630 break; 8631 } 8632 8633 mtx_unlock(&lun->lun_lock); 8634} 8635 8636int 8637ctl_read_write(struct ctl_scsiio *ctsio) 8638{ 8639 struct ctl_lun *lun; 8640 struct ctl_lba_len_flags *lbalen; 8641 uint64_t lba; 8642 uint32_t num_blocks; 8643 int flags, retval; 8644 int isread; 8645 8646 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 8647 8648 CTL_DEBUG_PRINT(("ctl_read_write: command: %#x\n", ctsio->cdb[0])); 8649 8650 flags = 0; 8651 isread = ctsio->cdb[0] == READ_6 || ctsio->cdb[0] == READ_10 8652 || ctsio->cdb[0] == READ_12 || ctsio->cdb[0] == READ_16; 8653 switch (ctsio->cdb[0]) { 8654 case READ_6: 8655 case WRITE_6: { 8656 struct scsi_rw_6 *cdb; 8657 8658 cdb = (struct scsi_rw_6 *)ctsio->cdb; 8659 8660 lba = scsi_3btoul(cdb->addr); 8661 /* only 5 bits are valid in the most significant address byte */ 8662 lba &= 0x1fffff; 8663 num_blocks = cdb->length; 8664 /* 8665 * This is correct according to SBC-2. 8666 */ 8667 if (num_blocks == 0) 8668 num_blocks = 256; 8669 break; 8670 } 8671 case READ_10: 8672 case WRITE_10: { 8673 struct scsi_rw_10 *cdb; 8674 8675 cdb = (struct scsi_rw_10 *)ctsio->cdb; 8676 if (cdb->byte2 & SRW10_FUA) 8677 flags |= CTL_LLF_FUA; 8678 if (cdb->byte2 & SRW10_DPO) 8679 flags |= CTL_LLF_DPO; 8680 lba = scsi_4btoul(cdb->addr); 8681 num_blocks = scsi_2btoul(cdb->length); 8682 break; 8683 } 8684 case WRITE_VERIFY_10: { 8685 struct scsi_write_verify_10 *cdb; 8686 8687 cdb = (struct scsi_write_verify_10 *)ctsio->cdb; 8688 flags |= CTL_LLF_FUA; 8689 if (cdb->byte2 & SWV_DPO) 8690 flags |= CTL_LLF_DPO; 8691 lba = scsi_4btoul(cdb->addr); 8692 num_blocks = scsi_2btoul(cdb->length); 8693 break; 8694 } 8695 case READ_12: 8696 case WRITE_12: { 8697 struct scsi_rw_12 *cdb; 8698 8699 cdb = (struct scsi_rw_12 *)ctsio->cdb; 8700 if (cdb->byte2 & SRW12_FUA) 8701 flags |= CTL_LLF_FUA; 8702 if (cdb->byte2 & SRW12_DPO) 8703 flags |= CTL_LLF_DPO; 8704 lba = scsi_4btoul(cdb->addr); 8705 num_blocks = scsi_4btoul(cdb->length); 8706 break; 8707 } 8708 case WRITE_VERIFY_12: { 8709 struct scsi_write_verify_12 *cdb; 8710 8711 cdb = (struct scsi_write_verify_12 *)ctsio->cdb; 8712 flags |= CTL_LLF_FUA; 8713 if (cdb->byte2 & SWV_DPO) 8714 flags |= CTL_LLF_DPO; 8715 lba = scsi_4btoul(cdb->addr); 8716 num_blocks = scsi_4btoul(cdb->length); 8717 break; 8718 } 8719 case READ_16: 8720 case WRITE_16: { 8721 struct scsi_rw_16 *cdb; 8722 8723 cdb = (struct scsi_rw_16 *)ctsio->cdb; 8724 if (cdb->byte2 & SRW12_FUA) 8725 flags |= CTL_LLF_FUA; 8726 if (cdb->byte2 & SRW12_DPO) 8727 flags |= CTL_LLF_DPO; 8728 lba = scsi_8btou64(cdb->addr); 8729 num_blocks = scsi_4btoul(cdb->length); 8730 break; 8731 } 8732 case WRITE_ATOMIC_16: { 8733 struct scsi_write_atomic_16 *cdb; 8734 8735 if (lun->be_lun->atomicblock == 0) { 8736 ctl_set_invalid_opcode(ctsio); 8737 ctl_done((union ctl_io *)ctsio); 8738 return (CTL_RETVAL_COMPLETE); 8739 } 8740 8741 cdb = (struct scsi_write_atomic_16 *)ctsio->cdb; 8742 if (cdb->byte2 & SRW12_FUA) 8743 flags |= CTL_LLF_FUA; 8744 if (cdb->byte2 & SRW12_DPO) 8745 flags |= CTL_LLF_DPO; 8746 lba = scsi_8btou64(cdb->addr); 8747 num_blocks = scsi_2btoul(cdb->length); 8748 if (num_blocks > lun->be_lun->atomicblock) { 8749 ctl_set_invalid_field(ctsio, /*sks_valid*/ 1, 8750 /*command*/ 1, /*field*/ 12, /*bit_valid*/ 0, 8751 /*bit*/ 0); 8752 ctl_done((union ctl_io *)ctsio); 8753 return (CTL_RETVAL_COMPLETE); 8754 } 8755 break; 8756 } 8757 case WRITE_VERIFY_16: { 8758 struct scsi_write_verify_16 *cdb; 8759 8760 cdb = (struct scsi_write_verify_16 *)ctsio->cdb; 8761 flags |= CTL_LLF_FUA; 8762 if (cdb->byte2 & SWV_DPO) 8763 flags |= CTL_LLF_DPO; 8764 lba = scsi_8btou64(cdb->addr); 8765 num_blocks = scsi_4btoul(cdb->length); 8766 break; 8767 } 8768 default: 8769 /* 8770 * We got a command we don't support. This shouldn't 8771 * happen, commands should be filtered out above us. 8772 */ 8773 ctl_set_invalid_opcode(ctsio); 8774 ctl_done((union ctl_io *)ctsio); 8775 8776 return (CTL_RETVAL_COMPLETE); 8777 break; /* NOTREACHED */ 8778 } 8779 8780 /* 8781 * The first check is to make sure we're in bounds, the second 8782 * check is to catch wrap-around problems. If the lba + num blocks 8783 * is less than the lba, then we've wrapped around and the block 8784 * range is invalid anyway. 8785 */ 8786 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 8787 || ((lba + num_blocks) < lba)) { 8788 ctl_set_lba_out_of_range(ctsio, 8789 MAX(lba, lun->be_lun->maxlba + 1)); 8790 ctl_done((union ctl_io *)ctsio); 8791 return (CTL_RETVAL_COMPLETE); 8792 } 8793 8794 /* 8795 * According to SBC-3, a transfer length of 0 is not an error. 8796 * Note that this cannot happen with WRITE(6) or READ(6), since 0 8797 * translates to 256 blocks for those commands. 8798 */ 8799 if (num_blocks == 0) { 8800 ctl_set_success(ctsio); 8801 ctl_done((union ctl_io *)ctsio); 8802 return (CTL_RETVAL_COMPLETE); 8803 } 8804 8805 /* Set FUA and/or DPO if caches are disabled. */ 8806 if (isread) { 8807 if ((lun->MODE_CACHING.flags1 & SCP_RCD) != 0) 8808 flags |= CTL_LLF_FUA | CTL_LLF_DPO; 8809 } else { 8810 if ((lun->MODE_CACHING.flags1 & SCP_WCE) == 0) 8811 flags |= CTL_LLF_FUA; 8812 } 8813 8814 lbalen = (struct ctl_lba_len_flags *) 8815 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 8816 lbalen->lba = lba; 8817 lbalen->len = num_blocks; 8818 lbalen->flags = (isread ? CTL_LLF_READ : CTL_LLF_WRITE) | flags; 8819 8820 ctsio->kern_total_len = num_blocks * lun->be_lun->blocksize; 8821 ctsio->kern_rel_offset = 0; 8822 8823 CTL_DEBUG_PRINT(("ctl_read_write: calling data_submit()\n")); 8824 8825 retval = lun->backend->data_submit((union ctl_io *)ctsio); 8826 return (retval); 8827} 8828 8829static int 8830ctl_cnw_cont(union ctl_io *io) 8831{ 8832 struct ctl_scsiio *ctsio; 8833 struct ctl_lun *lun; 8834 struct ctl_lba_len_flags *lbalen; 8835 int retval; 8836 8837 ctsio = &io->scsiio; 8838 ctsio->io_hdr.status = CTL_STATUS_NONE; 8839 ctsio->io_hdr.flags &= ~CTL_FLAG_IO_CONT; 8840 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 8841 lbalen = (struct ctl_lba_len_flags *) 8842 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 8843 lbalen->flags &= ~CTL_LLF_COMPARE; 8844 lbalen->flags |= CTL_LLF_WRITE; 8845 8846 CTL_DEBUG_PRINT(("ctl_cnw_cont: calling data_submit()\n")); 8847 retval = lun->backend->data_submit((union ctl_io *)ctsio); 8848 return (retval); 8849} 8850 8851int 8852ctl_cnw(struct ctl_scsiio *ctsio) 8853{ 8854 struct ctl_lun *lun; 8855 struct ctl_lba_len_flags *lbalen; 8856 uint64_t lba; 8857 uint32_t num_blocks; 8858 int flags, retval; 8859 8860 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 8861 8862 CTL_DEBUG_PRINT(("ctl_cnw: command: %#x\n", ctsio->cdb[0])); 8863 8864 flags = 0; 8865 switch (ctsio->cdb[0]) { 8866 case COMPARE_AND_WRITE: { 8867 struct scsi_compare_and_write *cdb; 8868 8869 cdb = (struct scsi_compare_and_write *)ctsio->cdb; 8870 if (cdb->byte2 & SRW10_FUA) 8871 flags |= CTL_LLF_FUA; 8872 if (cdb->byte2 & SRW10_DPO) 8873 flags |= CTL_LLF_DPO; 8874 lba = scsi_8btou64(cdb->addr); 8875 num_blocks = cdb->length; 8876 break; 8877 } 8878 default: 8879 /* 8880 * We got a command we don't support. This shouldn't 8881 * happen, commands should be filtered out above us. 8882 */ 8883 ctl_set_invalid_opcode(ctsio); 8884 ctl_done((union ctl_io *)ctsio); 8885 8886 return (CTL_RETVAL_COMPLETE); 8887 break; /* NOTREACHED */ 8888 } 8889 8890 /* 8891 * The first check is to make sure we're in bounds, the second 8892 * check is to catch wrap-around problems. If the lba + num blocks 8893 * is less than the lba, then we've wrapped around and the block 8894 * range is invalid anyway. 8895 */ 8896 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 8897 || ((lba + num_blocks) < lba)) { 8898 ctl_set_lba_out_of_range(ctsio, 8899 MAX(lba, lun->be_lun->maxlba + 1)); 8900 ctl_done((union ctl_io *)ctsio); 8901 return (CTL_RETVAL_COMPLETE); 8902 } 8903 8904 /* 8905 * According to SBC-3, a transfer length of 0 is not an error. 8906 */ 8907 if (num_blocks == 0) { 8908 ctl_set_success(ctsio); 8909 ctl_done((union ctl_io *)ctsio); 8910 return (CTL_RETVAL_COMPLETE); 8911 } 8912 8913 /* Set FUA if write cache is disabled. */ 8914 if ((lun->MODE_CACHING.flags1 & SCP_WCE) == 0) 8915 flags |= CTL_LLF_FUA; 8916 8917 ctsio->kern_total_len = 2 * num_blocks * lun->be_lun->blocksize; 8918 ctsio->kern_rel_offset = 0; 8919 8920 /* 8921 * Set the IO_CONT flag, so that if this I/O gets passed to 8922 * ctl_data_submit_done(), it'll get passed back to 8923 * ctl_ctl_cnw_cont() for further processing. 8924 */ 8925 ctsio->io_hdr.flags |= CTL_FLAG_IO_CONT; 8926 ctsio->io_cont = ctl_cnw_cont; 8927 8928 lbalen = (struct ctl_lba_len_flags *) 8929 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 8930 lbalen->lba = lba; 8931 lbalen->len = num_blocks; 8932 lbalen->flags = CTL_LLF_COMPARE | flags; 8933 8934 CTL_DEBUG_PRINT(("ctl_cnw: calling data_submit()\n")); 8935 retval = lun->backend->data_submit((union ctl_io *)ctsio); 8936 return (retval); 8937} 8938 8939int 8940ctl_verify(struct ctl_scsiio *ctsio) 8941{ 8942 struct ctl_lun *lun; 8943 struct ctl_lba_len_flags *lbalen; 8944 uint64_t lba; 8945 uint32_t num_blocks; 8946 int bytchk, flags; 8947 int retval; 8948 8949 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 8950 8951 CTL_DEBUG_PRINT(("ctl_verify: command: %#x\n", ctsio->cdb[0])); 8952 8953 bytchk = 0; 8954 flags = CTL_LLF_FUA; 8955 switch (ctsio->cdb[0]) { 8956 case VERIFY_10: { 8957 struct scsi_verify_10 *cdb; 8958 8959 cdb = (struct scsi_verify_10 *)ctsio->cdb; 8960 if (cdb->byte2 & SVFY_BYTCHK) 8961 bytchk = 1; 8962 if (cdb->byte2 & SVFY_DPO) 8963 flags |= CTL_LLF_DPO; 8964 lba = scsi_4btoul(cdb->addr); 8965 num_blocks = scsi_2btoul(cdb->length); 8966 break; 8967 } 8968 case VERIFY_12: { 8969 struct scsi_verify_12 *cdb; 8970 8971 cdb = (struct scsi_verify_12 *)ctsio->cdb; 8972 if (cdb->byte2 & SVFY_BYTCHK) 8973 bytchk = 1; 8974 if (cdb->byte2 & SVFY_DPO) 8975 flags |= CTL_LLF_DPO; 8976 lba = scsi_4btoul(cdb->addr); 8977 num_blocks = scsi_4btoul(cdb->length); 8978 break; 8979 } 8980 case VERIFY_16: { 8981 struct scsi_rw_16 *cdb; 8982 8983 cdb = (struct scsi_rw_16 *)ctsio->cdb; 8984 if (cdb->byte2 & SVFY_BYTCHK) 8985 bytchk = 1; 8986 if (cdb->byte2 & SVFY_DPO) 8987 flags |= CTL_LLF_DPO; 8988 lba = scsi_8btou64(cdb->addr); 8989 num_blocks = scsi_4btoul(cdb->length); 8990 break; 8991 } 8992 default: 8993 /* 8994 * We got a command we don't support. This shouldn't 8995 * happen, commands should be filtered out above us. 8996 */ 8997 ctl_set_invalid_opcode(ctsio); 8998 ctl_done((union ctl_io *)ctsio); 8999 return (CTL_RETVAL_COMPLETE); 9000 } 9001 9002 /* 9003 * The first check is to make sure we're in bounds, the second 9004 * check is to catch wrap-around problems. If the lba + num blocks 9005 * is less than the lba, then we've wrapped around and the block 9006 * range is invalid anyway. 9007 */ 9008 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 9009 || ((lba + num_blocks) < lba)) { 9010 ctl_set_lba_out_of_range(ctsio, 9011 MAX(lba, lun->be_lun->maxlba + 1)); 9012 ctl_done((union ctl_io *)ctsio); 9013 return (CTL_RETVAL_COMPLETE); 9014 } 9015 9016 /* 9017 * According to SBC-3, a transfer length of 0 is not an error. 9018 */ 9019 if (num_blocks == 0) { 9020 ctl_set_success(ctsio); 9021 ctl_done((union ctl_io *)ctsio); 9022 return (CTL_RETVAL_COMPLETE); 9023 } 9024 9025 lbalen = (struct ctl_lba_len_flags *) 9026 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 9027 lbalen->lba = lba; 9028 lbalen->len = num_blocks; 9029 if (bytchk) { 9030 lbalen->flags = CTL_LLF_COMPARE | flags; 9031 ctsio->kern_total_len = num_blocks * lun->be_lun->blocksize; 9032 } else { 9033 lbalen->flags = CTL_LLF_VERIFY | flags; 9034 ctsio->kern_total_len = 0; 9035 } 9036 ctsio->kern_rel_offset = 0; 9037 9038 CTL_DEBUG_PRINT(("ctl_verify: calling data_submit()\n")); 9039 retval = lun->backend->data_submit((union ctl_io *)ctsio); 9040 return (retval); 9041} 9042 9043int 9044ctl_report_luns(struct ctl_scsiio *ctsio) 9045{ 9046 struct ctl_softc *softc; 9047 struct scsi_report_luns *cdb; 9048 struct scsi_report_luns_data *lun_data; 9049 struct ctl_lun *lun, *request_lun; 9050 struct ctl_port *port; 9051 int num_luns, retval; 9052 uint32_t alloc_len, lun_datalen; 9053 int num_filled; 9054 uint32_t initidx, targ_lun_id, lun_id; 9055 9056 retval = CTL_RETVAL_COMPLETE; 9057 cdb = (struct scsi_report_luns *)ctsio->cdb; 9058 port = ctl_io_port(&ctsio->io_hdr); 9059 softc = port->ctl_softc; 9060 9061 CTL_DEBUG_PRINT(("ctl_report_luns\n")); 9062 9063 mtx_lock(&softc->ctl_lock); 9064 num_luns = 0; 9065 for (targ_lun_id = 0; targ_lun_id < CTL_MAX_LUNS; targ_lun_id++) { 9066 if (ctl_lun_map_from_port(port, targ_lun_id) != UINT32_MAX) 9067 num_luns++; 9068 } 9069 mtx_unlock(&softc->ctl_lock); 9070 9071 switch (cdb->select_report) { 9072 case RPL_REPORT_DEFAULT: 9073 case RPL_REPORT_ALL: 9074 case RPL_REPORT_NONSUBSID: 9075 break; 9076 case RPL_REPORT_WELLKNOWN: 9077 case RPL_REPORT_ADMIN: 9078 case RPL_REPORT_CONGLOM: 9079 num_luns = 0; 9080 break; 9081 default: 9082 ctl_set_invalid_field(ctsio, 9083 /*sks_valid*/ 1, 9084 /*command*/ 1, 9085 /*field*/ 2, 9086 /*bit_valid*/ 0, 9087 /*bit*/ 0); 9088 ctl_done((union ctl_io *)ctsio); 9089 return (retval); 9090 break; /* NOTREACHED */ 9091 } 9092 9093 alloc_len = scsi_4btoul(cdb->length); 9094 /* 9095 * The initiator has to allocate at least 16 bytes for this request, 9096 * so he can at least get the header and the first LUN. Otherwise 9097 * we reject the request (per SPC-3 rev 14, section 6.21). 9098 */ 9099 if (alloc_len < (sizeof(struct scsi_report_luns_data) + 9100 sizeof(struct scsi_report_luns_lundata))) { 9101 ctl_set_invalid_field(ctsio, 9102 /*sks_valid*/ 1, 9103 /*command*/ 1, 9104 /*field*/ 6, 9105 /*bit_valid*/ 0, 9106 /*bit*/ 0); 9107 ctl_done((union ctl_io *)ctsio); 9108 return (retval); 9109 } 9110 9111 request_lun = (struct ctl_lun *) 9112 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9113 9114 lun_datalen = sizeof(*lun_data) + 9115 (num_luns * sizeof(struct scsi_report_luns_lundata)); 9116 9117 ctsio->kern_data_ptr = malloc(lun_datalen, M_CTL, M_WAITOK | M_ZERO); 9118 lun_data = (struct scsi_report_luns_data *)ctsio->kern_data_ptr; 9119 ctsio->kern_sg_entries = 0; 9120 9121 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 9122 9123 mtx_lock(&softc->ctl_lock); 9124 for (targ_lun_id = 0, num_filled = 0; targ_lun_id < CTL_MAX_LUNS && num_filled < num_luns; targ_lun_id++) { 9125 lun_id = ctl_lun_map_from_port(port, targ_lun_id); 9126 if (lun_id == UINT32_MAX) 9127 continue; 9128 lun = softc->ctl_luns[lun_id]; 9129 if (lun == NULL) 9130 continue; 9131 9132 be64enc(lun_data->luns[num_filled++].lundata, 9133 ctl_encode_lun(targ_lun_id)); 9134 9135 /* 9136 * According to SPC-3, rev 14 section 6.21: 9137 * 9138 * "The execution of a REPORT LUNS command to any valid and 9139 * installed logical unit shall clear the REPORTED LUNS DATA 9140 * HAS CHANGED unit attention condition for all logical 9141 * units of that target with respect to the requesting 9142 * initiator. A valid and installed logical unit is one 9143 * having a PERIPHERAL QUALIFIER of 000b in the standard 9144 * INQUIRY data (see 6.4.2)." 9145 * 9146 * If request_lun is NULL, the LUN this report luns command 9147 * was issued to is either disabled or doesn't exist. In that 9148 * case, we shouldn't clear any pending lun change unit 9149 * attention. 9150 */ 9151 if (request_lun != NULL) { 9152 mtx_lock(&lun->lun_lock); 9153 ctl_clr_ua(lun, initidx, CTL_UA_LUN_CHANGE); 9154 mtx_unlock(&lun->lun_lock); 9155 } 9156 } 9157 mtx_unlock(&softc->ctl_lock); 9158 9159 /* 9160 * It's quite possible that we've returned fewer LUNs than we allocated 9161 * space for. Trim it. 9162 */ 9163 lun_datalen = sizeof(*lun_data) + 9164 (num_filled * sizeof(struct scsi_report_luns_lundata)); 9165 9166 if (lun_datalen < alloc_len) { 9167 ctsio->residual = alloc_len - lun_datalen; 9168 ctsio->kern_data_len = lun_datalen; 9169 ctsio->kern_total_len = lun_datalen; 9170 } else { 9171 ctsio->residual = 0; 9172 ctsio->kern_data_len = alloc_len; 9173 ctsio->kern_total_len = alloc_len; 9174 } 9175 ctsio->kern_data_resid = 0; 9176 ctsio->kern_rel_offset = 0; 9177 ctsio->kern_sg_entries = 0; 9178 9179 /* 9180 * We set this to the actual data length, regardless of how much 9181 * space we actually have to return results. If the user looks at 9182 * this value, he'll know whether or not he allocated enough space 9183 * and reissue the command if necessary. We don't support well 9184 * known logical units, so if the user asks for that, return none. 9185 */ 9186 scsi_ulto4b(lun_datalen - 8, lun_data->length); 9187 9188 /* 9189 * We can only return SCSI_STATUS_CHECK_COND when we can't satisfy 9190 * this request. 9191 */ 9192 ctl_set_success(ctsio); 9193 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9194 ctsio->be_move_done = ctl_config_move_done; 9195 ctl_datamove((union ctl_io *)ctsio); 9196 return (retval); 9197} 9198 9199int 9200ctl_request_sense(struct ctl_scsiio *ctsio) 9201{ 9202 struct scsi_request_sense *cdb; 9203 struct scsi_sense_data *sense_ptr; 9204 struct ctl_softc *softc; 9205 struct ctl_lun *lun; 9206 uint32_t initidx; 9207 int have_error; 9208 u_int sense_len = SSD_FULL_SIZE; 9209 scsi_sense_data_type sense_format; 9210 ctl_ua_type ua_type; 9211 uint8_t asc = 0, ascq = 0; 9212 9213 cdb = (struct scsi_request_sense *)ctsio->cdb; 9214 9215 softc = control_softc; 9216 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9217 9218 CTL_DEBUG_PRINT(("ctl_request_sense\n")); 9219 9220 /* 9221 * Determine which sense format the user wants. 9222 */ 9223 if (cdb->byte2 & SRS_DESC) 9224 sense_format = SSD_TYPE_DESC; 9225 else 9226 sense_format = SSD_TYPE_FIXED; 9227 9228 ctsio->kern_data_ptr = malloc(sizeof(*sense_ptr), M_CTL, M_WAITOK); 9229 sense_ptr = (struct scsi_sense_data *)ctsio->kern_data_ptr; 9230 ctsio->kern_sg_entries = 0; 9231 9232 /* 9233 * struct scsi_sense_data, which is currently set to 256 bytes, is 9234 * larger than the largest allowed value for the length field in the 9235 * REQUEST SENSE CDB, which is 252 bytes as of SPC-4. 9236 */ 9237 ctsio->residual = 0; 9238 ctsio->kern_data_len = cdb->length; 9239 ctsio->kern_total_len = cdb->length; 9240 9241 ctsio->kern_data_resid = 0; 9242 ctsio->kern_rel_offset = 0; 9243 ctsio->kern_sg_entries = 0; 9244 9245 /* 9246 * If we don't have a LUN, we don't have any pending sense. 9247 */ 9248 if (lun == NULL || 9249 ((lun->flags & CTL_LUN_PRIMARY_SC) == 0 && 9250 softc->ha_link < CTL_HA_LINK_UNKNOWN)) { 9251 /* "Logical unit not supported" */ 9252 ctl_set_sense_data(sense_ptr, &sense_len, NULL, sense_format, 9253 /*current_error*/ 1, 9254 /*sense_key*/ SSD_KEY_ILLEGAL_REQUEST, 9255 /*asc*/ 0x25, 9256 /*ascq*/ 0x00, 9257 SSD_ELEM_NONE); 9258 goto send; 9259 } 9260 9261 have_error = 0; 9262 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 9263 /* 9264 * Check for pending sense, and then for pending unit attentions. 9265 * Pending sense gets returned first, then pending unit attentions. 9266 */ 9267 mtx_lock(&lun->lun_lock); 9268#ifdef CTL_WITH_CA 9269 if (ctl_is_set(lun->have_ca, initidx)) { 9270 scsi_sense_data_type stored_format; 9271 9272 /* 9273 * Check to see which sense format was used for the stored 9274 * sense data. 9275 */ 9276 stored_format = scsi_sense_type(&lun->pending_sense[initidx]); 9277 9278 /* 9279 * If the user requested a different sense format than the 9280 * one we stored, then we need to convert it to the other 9281 * format. If we're going from descriptor to fixed format 9282 * sense data, we may lose things in translation, depending 9283 * on what options were used. 9284 * 9285 * If the stored format is SSD_TYPE_NONE (i.e. invalid), 9286 * for some reason we'll just copy it out as-is. 9287 */ 9288 if ((stored_format == SSD_TYPE_FIXED) 9289 && (sense_format == SSD_TYPE_DESC)) 9290 ctl_sense_to_desc((struct scsi_sense_data_fixed *) 9291 &lun->pending_sense[initidx], 9292 (struct scsi_sense_data_desc *)sense_ptr); 9293 else if ((stored_format == SSD_TYPE_DESC) 9294 && (sense_format == SSD_TYPE_FIXED)) 9295 ctl_sense_to_fixed((struct scsi_sense_data_desc *) 9296 &lun->pending_sense[initidx], 9297 (struct scsi_sense_data_fixed *)sense_ptr); 9298 else 9299 memcpy(sense_ptr, &lun->pending_sense[initidx], 9300 MIN(sizeof(*sense_ptr), 9301 sizeof(lun->pending_sense[initidx]))); 9302 9303 ctl_clear_mask(lun->have_ca, initidx); 9304 have_error = 1; 9305 } else 9306#endif 9307 if (have_error == 0) { 9308 ua_type = ctl_build_ua(lun, initidx, sense_ptr, &sense_len, 9309 sense_format); 9310 if (ua_type != CTL_UA_NONE) 9311 have_error = 1; 9312 } 9313 if (have_error == 0) { 9314 /* 9315 * Report informational exception if have one and allowed. 9316 */ 9317 if (lun->MODE_IE.mrie != SIEP_MRIE_NO) { 9318 asc = lun->ie_asc; 9319 ascq = lun->ie_ascq; 9320 } 9321 ctl_set_sense_data(sense_ptr, &sense_len, lun, sense_format, 9322 /*current_error*/ 1, 9323 /*sense_key*/ SSD_KEY_NO_SENSE, 9324 /*asc*/ asc, 9325 /*ascq*/ ascq, 9326 SSD_ELEM_NONE); 9327 } 9328 mtx_unlock(&lun->lun_lock); 9329 9330send: 9331 /* 9332 * We report the SCSI status as OK, since the status of the command 9333 * itself is OK. We're reporting sense as parameter data. 9334 */ 9335 ctl_set_success(ctsio); 9336 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9337 ctsio->be_move_done = ctl_config_move_done; 9338 ctl_datamove((union ctl_io *)ctsio); 9339 return (CTL_RETVAL_COMPLETE); 9340} 9341 9342int 9343ctl_tur(struct ctl_scsiio *ctsio) 9344{ 9345 9346 CTL_DEBUG_PRINT(("ctl_tur\n")); 9347 9348 ctl_set_success(ctsio); 9349 ctl_done((union ctl_io *)ctsio); 9350 9351 return (CTL_RETVAL_COMPLETE); 9352} 9353 9354/* 9355 * SCSI VPD page 0x00, the Supported VPD Pages page. 9356 */ 9357static int 9358ctl_inquiry_evpd_supported(struct ctl_scsiio *ctsio, int alloc_len) 9359{ 9360 struct scsi_vpd_supported_pages *pages; 9361 int sup_page_size; 9362 struct ctl_lun *lun; 9363 int p; 9364 9365 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9366 9367 sup_page_size = sizeof(struct scsi_vpd_supported_pages) * 9368 SCSI_EVPD_NUM_SUPPORTED_PAGES; 9369 ctsio->kern_data_ptr = malloc(sup_page_size, M_CTL, M_WAITOK | M_ZERO); 9370 pages = (struct scsi_vpd_supported_pages *)ctsio->kern_data_ptr; 9371 ctsio->kern_sg_entries = 0; 9372 9373 if (sup_page_size < alloc_len) { 9374 ctsio->residual = alloc_len - sup_page_size; 9375 ctsio->kern_data_len = sup_page_size; 9376 ctsio->kern_total_len = sup_page_size; 9377 } else { 9378 ctsio->residual = 0; 9379 ctsio->kern_data_len = alloc_len; 9380 ctsio->kern_total_len = alloc_len; 9381 } 9382 ctsio->kern_data_resid = 0; 9383 ctsio->kern_rel_offset = 0; 9384 ctsio->kern_sg_entries = 0; 9385 9386 /* 9387 * The control device is always connected. The disk device, on the 9388 * other hand, may not be online all the time. Need to change this 9389 * to figure out whether the disk device is actually online or not. 9390 */ 9391 if (lun != NULL) 9392 pages->device = (SID_QUAL_LU_CONNECTED << 5) | 9393 lun->be_lun->lun_type; 9394 else 9395 pages->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9396 9397 p = 0; 9398 /* Supported VPD pages */ 9399 pages->page_list[p++] = SVPD_SUPPORTED_PAGES; 9400 /* Serial Number */ 9401 pages->page_list[p++] = SVPD_UNIT_SERIAL_NUMBER; 9402 /* Device Identification */ 9403 pages->page_list[p++] = SVPD_DEVICE_ID; 9404 /* Extended INQUIRY Data */ 9405 pages->page_list[p++] = SVPD_EXTENDED_INQUIRY_DATA; 9406 /* Mode Page Policy */ 9407 pages->page_list[p++] = SVPD_MODE_PAGE_POLICY; 9408 /* SCSI Ports */ 9409 pages->page_list[p++] = SVPD_SCSI_PORTS; 9410 /* Third-party Copy */ 9411 pages->page_list[p++] = SVPD_SCSI_TPC; 9412 if (lun != NULL && lun->be_lun->lun_type == T_DIRECT) { 9413 /* Block limits */ 9414 pages->page_list[p++] = SVPD_BLOCK_LIMITS; 9415 /* Block Device Characteristics */ 9416 pages->page_list[p++] = SVPD_BDC; 9417 /* Logical Block Provisioning */ 9418 pages->page_list[p++] = SVPD_LBP; 9419 } 9420 pages->length = p; 9421 9422 ctl_set_success(ctsio); 9423 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9424 ctsio->be_move_done = ctl_config_move_done; 9425 ctl_datamove((union ctl_io *)ctsio); 9426 return (CTL_RETVAL_COMPLETE); 9427} 9428 9429/* 9430 * SCSI VPD page 0x80, the Unit Serial Number page. 9431 */ 9432static int 9433ctl_inquiry_evpd_serial(struct ctl_scsiio *ctsio, int alloc_len) 9434{ 9435 struct scsi_vpd_unit_serial_number *sn_ptr; 9436 struct ctl_lun *lun; 9437 int data_len; 9438 9439 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9440 9441 data_len = 4 + CTL_SN_LEN; 9442 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9443 sn_ptr = (struct scsi_vpd_unit_serial_number *)ctsio->kern_data_ptr; 9444 if (data_len < alloc_len) { 9445 ctsio->residual = alloc_len - data_len; 9446 ctsio->kern_data_len = data_len; 9447 ctsio->kern_total_len = data_len; 9448 } else { 9449 ctsio->residual = 0; 9450 ctsio->kern_data_len = alloc_len; 9451 ctsio->kern_total_len = alloc_len; 9452 } 9453 ctsio->kern_data_resid = 0; 9454 ctsio->kern_rel_offset = 0; 9455 ctsio->kern_sg_entries = 0; 9456 9457 /* 9458 * The control device is always connected. The disk device, on the 9459 * other hand, may not be online all the time. Need to change this 9460 * to figure out whether the disk device is actually online or not. 9461 */ 9462 if (lun != NULL) 9463 sn_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9464 lun->be_lun->lun_type; 9465 else 9466 sn_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9467 9468 sn_ptr->page_code = SVPD_UNIT_SERIAL_NUMBER; 9469 sn_ptr->length = CTL_SN_LEN; 9470 /* 9471 * If we don't have a LUN, we just leave the serial number as 9472 * all spaces. 9473 */ 9474 if (lun != NULL) { 9475 strncpy((char *)sn_ptr->serial_num, 9476 (char *)lun->be_lun->serial_num, CTL_SN_LEN); 9477 } else 9478 memset(sn_ptr->serial_num, 0x20, CTL_SN_LEN); 9479 9480 ctl_set_success(ctsio); 9481 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9482 ctsio->be_move_done = ctl_config_move_done; 9483 ctl_datamove((union ctl_io *)ctsio); 9484 return (CTL_RETVAL_COMPLETE); 9485} 9486 9487 9488/* 9489 * SCSI VPD page 0x86, the Extended INQUIRY Data page. 9490 */ 9491static int 9492ctl_inquiry_evpd_eid(struct ctl_scsiio *ctsio, int alloc_len) 9493{ 9494 struct scsi_vpd_extended_inquiry_data *eid_ptr; 9495 struct ctl_lun *lun; 9496 int data_len; 9497 9498 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9499 9500 data_len = sizeof(struct scsi_vpd_extended_inquiry_data); 9501 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9502 eid_ptr = (struct scsi_vpd_extended_inquiry_data *)ctsio->kern_data_ptr; 9503 ctsio->kern_sg_entries = 0; 9504 9505 if (data_len < alloc_len) { 9506 ctsio->residual = alloc_len - data_len; 9507 ctsio->kern_data_len = data_len; 9508 ctsio->kern_total_len = data_len; 9509 } else { 9510 ctsio->residual = 0; 9511 ctsio->kern_data_len = alloc_len; 9512 ctsio->kern_total_len = alloc_len; 9513 } 9514 ctsio->kern_data_resid = 0; 9515 ctsio->kern_rel_offset = 0; 9516 ctsio->kern_sg_entries = 0; 9517 9518 /* 9519 * The control device is always connected. The disk device, on the 9520 * other hand, may not be online all the time. 9521 */ 9522 if (lun != NULL) 9523 eid_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9524 lun->be_lun->lun_type; 9525 else 9526 eid_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9527 eid_ptr->page_code = SVPD_EXTENDED_INQUIRY_DATA; 9528 scsi_ulto2b(data_len - 4, eid_ptr->page_length); 9529 /* 9530 * We support head of queue, ordered and simple tags. 9531 */ 9532 eid_ptr->flags2 = SVPD_EID_HEADSUP | SVPD_EID_ORDSUP | SVPD_EID_SIMPSUP; 9533 /* 9534 * Volatile cache supported. 9535 */ 9536 eid_ptr->flags3 = SVPD_EID_V_SUP; 9537 9538 /* 9539 * This means that we clear the REPORTED LUNS DATA HAS CHANGED unit 9540 * attention for a particular IT nexus on all LUNs once we report 9541 * it to that nexus once. This bit is required as of SPC-4. 9542 */ 9543 eid_ptr->flags4 = SVPD_EID_LUICLR; 9544 9545 /* 9546 * XXX KDM in order to correctly answer this, we would need 9547 * information from the SIM to determine how much sense data it 9548 * can send. So this would really be a path inquiry field, most 9549 * likely. This can be set to a maximum of 252 according to SPC-4, 9550 * but the hardware may or may not be able to support that much. 9551 * 0 just means that the maximum sense data length is not reported. 9552 */ 9553 eid_ptr->max_sense_length = 0; 9554 9555 ctl_set_success(ctsio); 9556 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9557 ctsio->be_move_done = ctl_config_move_done; 9558 ctl_datamove((union ctl_io *)ctsio); 9559 return (CTL_RETVAL_COMPLETE); 9560} 9561 9562static int 9563ctl_inquiry_evpd_mpp(struct ctl_scsiio *ctsio, int alloc_len) 9564{ 9565 struct scsi_vpd_mode_page_policy *mpp_ptr; 9566 struct ctl_lun *lun; 9567 int data_len; 9568 9569 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9570 9571 data_len = sizeof(struct scsi_vpd_mode_page_policy) + 9572 sizeof(struct scsi_vpd_mode_page_policy_descr); 9573 9574 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9575 mpp_ptr = (struct scsi_vpd_mode_page_policy *)ctsio->kern_data_ptr; 9576 ctsio->kern_sg_entries = 0; 9577 9578 if (data_len < alloc_len) { 9579 ctsio->residual = alloc_len - data_len; 9580 ctsio->kern_data_len = data_len; 9581 ctsio->kern_total_len = data_len; 9582 } else { 9583 ctsio->residual = 0; 9584 ctsio->kern_data_len = alloc_len; 9585 ctsio->kern_total_len = alloc_len; 9586 } 9587 ctsio->kern_data_resid = 0; 9588 ctsio->kern_rel_offset = 0; 9589 ctsio->kern_sg_entries = 0; 9590 9591 /* 9592 * The control device is always connected. The disk device, on the 9593 * other hand, may not be online all the time. 9594 */ 9595 if (lun != NULL) 9596 mpp_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9597 lun->be_lun->lun_type; 9598 else 9599 mpp_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9600 mpp_ptr->page_code = SVPD_MODE_PAGE_POLICY; 9601 scsi_ulto2b(data_len - 4, mpp_ptr->page_length); 9602 mpp_ptr->descr[0].page_code = 0x3f; 9603 mpp_ptr->descr[0].subpage_code = 0xff; 9604 mpp_ptr->descr[0].policy = SVPD_MPP_SHARED; 9605 9606 ctl_set_success(ctsio); 9607 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9608 ctsio->be_move_done = ctl_config_move_done; 9609 ctl_datamove((union ctl_io *)ctsio); 9610 return (CTL_RETVAL_COMPLETE); 9611} 9612 9613/* 9614 * SCSI VPD page 0x83, the Device Identification page. 9615 */ 9616static int 9617ctl_inquiry_evpd_devid(struct ctl_scsiio *ctsio, int alloc_len) 9618{ 9619 struct scsi_vpd_device_id *devid_ptr; 9620 struct scsi_vpd_id_descriptor *desc; 9621 struct ctl_softc *softc; 9622 struct ctl_lun *lun; 9623 struct ctl_port *port; 9624 int data_len, g; 9625 uint8_t proto; 9626 9627 softc = control_softc; 9628 9629 port = ctl_io_port(&ctsio->io_hdr); 9630 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9631 9632 data_len = sizeof(struct scsi_vpd_device_id) + 9633 sizeof(struct scsi_vpd_id_descriptor) + 9634 sizeof(struct scsi_vpd_id_rel_trgt_port_id) + 9635 sizeof(struct scsi_vpd_id_descriptor) + 9636 sizeof(struct scsi_vpd_id_trgt_port_grp_id); 9637 if (lun && lun->lun_devid) 9638 data_len += lun->lun_devid->len; 9639 if (port && port->port_devid) 9640 data_len += port->port_devid->len; 9641 if (port && port->target_devid) 9642 data_len += port->target_devid->len; 9643 9644 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9645 devid_ptr = (struct scsi_vpd_device_id *)ctsio->kern_data_ptr; 9646 ctsio->kern_sg_entries = 0; 9647 9648 if (data_len < alloc_len) { 9649 ctsio->residual = alloc_len - data_len; 9650 ctsio->kern_data_len = data_len; 9651 ctsio->kern_total_len = data_len; 9652 } else { 9653 ctsio->residual = 0; 9654 ctsio->kern_data_len = alloc_len; 9655 ctsio->kern_total_len = alloc_len; 9656 } 9657 ctsio->kern_data_resid = 0; 9658 ctsio->kern_rel_offset = 0; 9659 ctsio->kern_sg_entries = 0; 9660 9661 /* 9662 * The control device is always connected. The disk device, on the 9663 * other hand, may not be online all the time. 9664 */ 9665 if (lun != NULL) 9666 devid_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9667 lun->be_lun->lun_type; 9668 else 9669 devid_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9670 devid_ptr->page_code = SVPD_DEVICE_ID; 9671 scsi_ulto2b(data_len - 4, devid_ptr->length); 9672 9673 if (port && port->port_type == CTL_PORT_FC) 9674 proto = SCSI_PROTO_FC << 4; 9675 else if (port && port->port_type == CTL_PORT_ISCSI) 9676 proto = SCSI_PROTO_ISCSI << 4; 9677 else 9678 proto = SCSI_PROTO_SPI << 4; 9679 desc = (struct scsi_vpd_id_descriptor *)devid_ptr->desc_list; 9680 9681 /* 9682 * We're using a LUN association here. i.e., this device ID is a 9683 * per-LUN identifier. 9684 */ 9685 if (lun && lun->lun_devid) { 9686 memcpy(desc, lun->lun_devid->data, lun->lun_devid->len); 9687 desc = (struct scsi_vpd_id_descriptor *)((uint8_t *)desc + 9688 lun->lun_devid->len); 9689 } 9690 9691 /* 9692 * This is for the WWPN which is a port association. 9693 */ 9694 if (port && port->port_devid) { 9695 memcpy(desc, port->port_devid->data, port->port_devid->len); 9696 desc = (struct scsi_vpd_id_descriptor *)((uint8_t *)desc + 9697 port->port_devid->len); 9698 } 9699 9700 /* 9701 * This is for the Relative Target Port(type 4h) identifier 9702 */ 9703 desc->proto_codeset = proto | SVPD_ID_CODESET_BINARY; 9704 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_PORT | 9705 SVPD_ID_TYPE_RELTARG; 9706 desc->length = 4; 9707 scsi_ulto2b(ctsio->io_hdr.nexus.targ_port, &desc->identifier[2]); 9708 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 9709 sizeof(struct scsi_vpd_id_rel_trgt_port_id)); 9710 9711 /* 9712 * This is for the Target Port Group(type 5h) identifier 9713 */ 9714 desc->proto_codeset = proto | SVPD_ID_CODESET_BINARY; 9715 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_PORT | 9716 SVPD_ID_TYPE_TPORTGRP; 9717 desc->length = 4; 9718 if (softc->is_single || 9719 (port && port->status & CTL_PORT_STATUS_HA_SHARED)) 9720 g = 1; 9721 else 9722 g = 2 + ctsio->io_hdr.nexus.targ_port / softc->port_cnt; 9723 scsi_ulto2b(g, &desc->identifier[2]); 9724 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 9725 sizeof(struct scsi_vpd_id_trgt_port_grp_id)); 9726 9727 /* 9728 * This is for the Target identifier 9729 */ 9730 if (port && port->target_devid) { 9731 memcpy(desc, port->target_devid->data, port->target_devid->len); 9732 } 9733 9734 ctl_set_success(ctsio); 9735 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9736 ctsio->be_move_done = ctl_config_move_done; 9737 ctl_datamove((union ctl_io *)ctsio); 9738 return (CTL_RETVAL_COMPLETE); 9739} 9740 9741static int 9742ctl_inquiry_evpd_scsi_ports(struct ctl_scsiio *ctsio, int alloc_len) 9743{ 9744 struct ctl_softc *softc = control_softc; 9745 struct scsi_vpd_scsi_ports *sp; 9746 struct scsi_vpd_port_designation *pd; 9747 struct scsi_vpd_port_designation_cont *pdc; 9748 struct ctl_lun *lun; 9749 struct ctl_port *port; 9750 int data_len, num_target_ports, iid_len, id_len; 9751 9752 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9753 9754 num_target_ports = 0; 9755 iid_len = 0; 9756 id_len = 0; 9757 mtx_lock(&softc->ctl_lock); 9758 STAILQ_FOREACH(port, &softc->port_list, links) { 9759 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 9760 continue; 9761 if (lun != NULL && 9762 ctl_lun_map_to_port(port, lun->lun) == UINT32_MAX) 9763 continue; 9764 num_target_ports++; 9765 if (port->init_devid) 9766 iid_len += port->init_devid->len; 9767 if (port->port_devid) 9768 id_len += port->port_devid->len; 9769 } 9770 mtx_unlock(&softc->ctl_lock); 9771 9772 data_len = sizeof(struct scsi_vpd_scsi_ports) + 9773 num_target_ports * (sizeof(struct scsi_vpd_port_designation) + 9774 sizeof(struct scsi_vpd_port_designation_cont)) + iid_len + id_len; 9775 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9776 sp = (struct scsi_vpd_scsi_ports *)ctsio->kern_data_ptr; 9777 ctsio->kern_sg_entries = 0; 9778 9779 if (data_len < alloc_len) { 9780 ctsio->residual = alloc_len - data_len; 9781 ctsio->kern_data_len = data_len; 9782 ctsio->kern_total_len = data_len; 9783 } else { 9784 ctsio->residual = 0; 9785 ctsio->kern_data_len = alloc_len; 9786 ctsio->kern_total_len = alloc_len; 9787 } 9788 ctsio->kern_data_resid = 0; 9789 ctsio->kern_rel_offset = 0; 9790 ctsio->kern_sg_entries = 0; 9791 9792 /* 9793 * The control device is always connected. The disk device, on the 9794 * other hand, may not be online all the time. Need to change this 9795 * to figure out whether the disk device is actually online or not. 9796 */ 9797 if (lun != NULL) 9798 sp->device = (SID_QUAL_LU_CONNECTED << 5) | 9799 lun->be_lun->lun_type; 9800 else 9801 sp->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9802 9803 sp->page_code = SVPD_SCSI_PORTS; 9804 scsi_ulto2b(data_len - sizeof(struct scsi_vpd_scsi_ports), 9805 sp->page_length); 9806 pd = &sp->design[0]; 9807 9808 mtx_lock(&softc->ctl_lock); 9809 STAILQ_FOREACH(port, &softc->port_list, links) { 9810 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 9811 continue; 9812 if (lun != NULL && 9813 ctl_lun_map_to_port(port, lun->lun) == UINT32_MAX) 9814 continue; 9815 scsi_ulto2b(port->targ_port, pd->relative_port_id); 9816 if (port->init_devid) { 9817 iid_len = port->init_devid->len; 9818 memcpy(pd->initiator_transportid, 9819 port->init_devid->data, port->init_devid->len); 9820 } else 9821 iid_len = 0; 9822 scsi_ulto2b(iid_len, pd->initiator_transportid_length); 9823 pdc = (struct scsi_vpd_port_designation_cont *) 9824 (&pd->initiator_transportid[iid_len]); 9825 if (port->port_devid) { 9826 id_len = port->port_devid->len; 9827 memcpy(pdc->target_port_descriptors, 9828 port->port_devid->data, port->port_devid->len); 9829 } else 9830 id_len = 0; 9831 scsi_ulto2b(id_len, pdc->target_port_descriptors_length); 9832 pd = (struct scsi_vpd_port_designation *) 9833 ((uint8_t *)pdc->target_port_descriptors + id_len); 9834 } 9835 mtx_unlock(&softc->ctl_lock); 9836 9837 ctl_set_success(ctsio); 9838 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9839 ctsio->be_move_done = ctl_config_move_done; 9840 ctl_datamove((union ctl_io *)ctsio); 9841 return (CTL_RETVAL_COMPLETE); 9842} 9843 9844static int 9845ctl_inquiry_evpd_block_limits(struct ctl_scsiio *ctsio, int alloc_len) 9846{ 9847 struct scsi_vpd_block_limits *bl_ptr; 9848 struct ctl_lun *lun; 9849 uint64_t ival; 9850 9851 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9852 9853 ctsio->kern_data_ptr = malloc(sizeof(*bl_ptr), M_CTL, M_WAITOK | M_ZERO); 9854 bl_ptr = (struct scsi_vpd_block_limits *)ctsio->kern_data_ptr; 9855 ctsio->kern_sg_entries = 0; 9856 9857 if (sizeof(*bl_ptr) < alloc_len) { 9858 ctsio->residual = alloc_len - sizeof(*bl_ptr); 9859 ctsio->kern_data_len = sizeof(*bl_ptr); 9860 ctsio->kern_total_len = sizeof(*bl_ptr); 9861 } else { 9862 ctsio->residual = 0; 9863 ctsio->kern_data_len = alloc_len; 9864 ctsio->kern_total_len = alloc_len; 9865 } 9866 ctsio->kern_data_resid = 0; 9867 ctsio->kern_rel_offset = 0; 9868 ctsio->kern_sg_entries = 0; 9869 9870 /* 9871 * The control device is always connected. The disk device, on the 9872 * other hand, may not be online all the time. Need to change this 9873 * to figure out whether the disk device is actually online or not. 9874 */ 9875 if (lun != NULL) 9876 bl_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9877 lun->be_lun->lun_type; 9878 else 9879 bl_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9880 9881 bl_ptr->page_code = SVPD_BLOCK_LIMITS; 9882 scsi_ulto2b(sizeof(*bl_ptr) - 4, bl_ptr->page_length); 9883 bl_ptr->max_cmp_write_len = 0xff; 9884 scsi_ulto4b(0xffffffff, bl_ptr->max_txfer_len); 9885 if (lun != NULL) { 9886 scsi_ulto4b(lun->be_lun->opttxferlen, bl_ptr->opt_txfer_len); 9887 if (lun->be_lun->flags & CTL_LUN_FLAG_UNMAP) { 9888 ival = 0xffffffff; 9889 ctl_get_opt_number(&lun->be_lun->options, 9890 "unmap_max_lba", &ival); 9891 scsi_ulto4b(ival, bl_ptr->max_unmap_lba_cnt); 9892 ival = 0xffffffff; 9893 ctl_get_opt_number(&lun->be_lun->options, 9894 "unmap_max_descr", &ival); 9895 scsi_ulto4b(ival, bl_ptr->max_unmap_blk_cnt); 9896 if (lun->be_lun->ublockexp != 0) { 9897 scsi_ulto4b((1 << lun->be_lun->ublockexp), 9898 bl_ptr->opt_unmap_grain); 9899 scsi_ulto4b(0x80000000 | lun->be_lun->ublockoff, 9900 bl_ptr->unmap_grain_align); 9901 } 9902 } 9903 scsi_ulto4b(lun->be_lun->atomicblock, 9904 bl_ptr->max_atomic_transfer_length); 9905 scsi_ulto4b(0, bl_ptr->atomic_alignment); 9906 scsi_ulto4b(0, bl_ptr->atomic_transfer_length_granularity); 9907 scsi_ulto4b(0, bl_ptr->max_atomic_transfer_length_with_atomic_boundary); 9908 scsi_ulto4b(0, bl_ptr->max_atomic_boundary_size); 9909 ival = UINT64_MAX; 9910 ctl_get_opt_number(&lun->be_lun->options, "write_same_max_lba", &ival); 9911 scsi_u64to8b(ival, bl_ptr->max_write_same_length); 9912 } 9913 9914 ctl_set_success(ctsio); 9915 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9916 ctsio->be_move_done = ctl_config_move_done; 9917 ctl_datamove((union ctl_io *)ctsio); 9918 return (CTL_RETVAL_COMPLETE); 9919} 9920 9921static int 9922ctl_inquiry_evpd_bdc(struct ctl_scsiio *ctsio, int alloc_len) 9923{ 9924 struct scsi_vpd_block_device_characteristics *bdc_ptr; 9925 struct ctl_lun *lun; 9926 const char *value; 9927 u_int i; 9928 9929 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9930 9931 ctsio->kern_data_ptr = malloc(sizeof(*bdc_ptr), M_CTL, M_WAITOK | M_ZERO); 9932 bdc_ptr = (struct scsi_vpd_block_device_characteristics *)ctsio->kern_data_ptr; 9933 ctsio->kern_sg_entries = 0; 9934 9935 if (sizeof(*bdc_ptr) < alloc_len) { 9936 ctsio->residual = alloc_len - sizeof(*bdc_ptr); 9937 ctsio->kern_data_len = sizeof(*bdc_ptr); 9938 ctsio->kern_total_len = sizeof(*bdc_ptr); 9939 } else { 9940 ctsio->residual = 0; 9941 ctsio->kern_data_len = alloc_len; 9942 ctsio->kern_total_len = alloc_len; 9943 } 9944 ctsio->kern_data_resid = 0; 9945 ctsio->kern_rel_offset = 0; 9946 ctsio->kern_sg_entries = 0; 9947 9948 /* 9949 * The control device is always connected. The disk device, on the 9950 * other hand, may not be online all the time. Need to change this 9951 * to figure out whether the disk device is actually online or not. 9952 */ 9953 if (lun != NULL) 9954 bdc_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9955 lun->be_lun->lun_type; 9956 else 9957 bdc_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9958 bdc_ptr->page_code = SVPD_BDC; 9959 scsi_ulto2b(sizeof(*bdc_ptr) - 4, bdc_ptr->page_length); 9960 if (lun != NULL && 9961 (value = ctl_get_opt(&lun->be_lun->options, "rpm")) != NULL) 9962 i = strtol(value, NULL, 0); 9963 else 9964 i = CTL_DEFAULT_ROTATION_RATE; 9965 scsi_ulto2b(i, bdc_ptr->medium_rotation_rate); 9966 if (lun != NULL && 9967 (value = ctl_get_opt(&lun->be_lun->options, "formfactor")) != NULL) 9968 i = strtol(value, NULL, 0); 9969 else 9970 i = 0; 9971 bdc_ptr->wab_wac_ff = (i & 0x0f); 9972 bdc_ptr->flags = SVPD_FUAB | SVPD_VBULS; 9973 9974 ctl_set_success(ctsio); 9975 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9976 ctsio->be_move_done = ctl_config_move_done; 9977 ctl_datamove((union ctl_io *)ctsio); 9978 return (CTL_RETVAL_COMPLETE); 9979} 9980 9981static int 9982ctl_inquiry_evpd_lbp(struct ctl_scsiio *ctsio, int alloc_len) 9983{ 9984 struct scsi_vpd_logical_block_prov *lbp_ptr; 9985 struct ctl_lun *lun; 9986 const char *value; 9987 9988 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9989 9990 ctsio->kern_data_ptr = malloc(sizeof(*lbp_ptr), M_CTL, M_WAITOK | M_ZERO); 9991 lbp_ptr = (struct scsi_vpd_logical_block_prov *)ctsio->kern_data_ptr; 9992 ctsio->kern_sg_entries = 0; 9993 9994 if (sizeof(*lbp_ptr) < alloc_len) { 9995 ctsio->residual = alloc_len - sizeof(*lbp_ptr); 9996 ctsio->kern_data_len = sizeof(*lbp_ptr); 9997 ctsio->kern_total_len = sizeof(*lbp_ptr); 9998 } else { 9999 ctsio->residual = 0; 10000 ctsio->kern_data_len = alloc_len; 10001 ctsio->kern_total_len = alloc_len; 10002 } 10003 ctsio->kern_data_resid = 0; 10004 ctsio->kern_rel_offset = 0; 10005 ctsio->kern_sg_entries = 0; 10006 10007 /* 10008 * The control device is always connected. The disk device, on the 10009 * other hand, may not be online all the time. Need to change this 10010 * to figure out whether the disk device is actually online or not. 10011 */ 10012 if (lun != NULL) 10013 lbp_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10014 lun->be_lun->lun_type; 10015 else 10016 lbp_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10017 10018 lbp_ptr->page_code = SVPD_LBP; 10019 scsi_ulto2b(sizeof(*lbp_ptr) - 4, lbp_ptr->page_length); 10020 lbp_ptr->threshold_exponent = CTL_LBP_EXPONENT; 10021 if (lun != NULL && lun->be_lun->flags & CTL_LUN_FLAG_UNMAP) { 10022 lbp_ptr->flags = SVPD_LBP_UNMAP | SVPD_LBP_WS16 | 10023 SVPD_LBP_WS10 | SVPD_LBP_RZ | SVPD_LBP_ANC_SUP; 10024 value = ctl_get_opt(&lun->be_lun->options, "provisioning_type"); 10025 if (value != NULL) { 10026 if (strcmp(value, "resource") == 0) 10027 lbp_ptr->prov_type = SVPD_LBP_RESOURCE; 10028 else if (strcmp(value, "thin") == 0) 10029 lbp_ptr->prov_type = SVPD_LBP_THIN; 10030 } else 10031 lbp_ptr->prov_type = SVPD_LBP_THIN; 10032 } 10033 10034 ctl_set_success(ctsio); 10035 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10036 ctsio->be_move_done = ctl_config_move_done; 10037 ctl_datamove((union ctl_io *)ctsio); 10038 return (CTL_RETVAL_COMPLETE); 10039} 10040 10041/* 10042 * INQUIRY with the EVPD bit set. 10043 */ 10044static int 10045ctl_inquiry_evpd(struct ctl_scsiio *ctsio) 10046{ 10047 struct ctl_lun *lun; 10048 struct scsi_inquiry *cdb; 10049 int alloc_len, retval; 10050 10051 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10052 cdb = (struct scsi_inquiry *)ctsio->cdb; 10053 alloc_len = scsi_2btoul(cdb->length); 10054 10055 switch (cdb->page_code) { 10056 case SVPD_SUPPORTED_PAGES: 10057 retval = ctl_inquiry_evpd_supported(ctsio, alloc_len); 10058 break; 10059 case SVPD_UNIT_SERIAL_NUMBER: 10060 retval = ctl_inquiry_evpd_serial(ctsio, alloc_len); 10061 break; 10062 case SVPD_DEVICE_ID: 10063 retval = ctl_inquiry_evpd_devid(ctsio, alloc_len); 10064 break; 10065 case SVPD_EXTENDED_INQUIRY_DATA: 10066 retval = ctl_inquiry_evpd_eid(ctsio, alloc_len); 10067 break; 10068 case SVPD_MODE_PAGE_POLICY: 10069 retval = ctl_inquiry_evpd_mpp(ctsio, alloc_len); 10070 break; 10071 case SVPD_SCSI_PORTS: 10072 retval = ctl_inquiry_evpd_scsi_ports(ctsio, alloc_len); 10073 break; 10074 case SVPD_SCSI_TPC: 10075 retval = ctl_inquiry_evpd_tpc(ctsio, alloc_len); 10076 break; 10077 case SVPD_BLOCK_LIMITS: 10078 if (lun == NULL || lun->be_lun->lun_type != T_DIRECT) 10079 goto err; 10080 retval = ctl_inquiry_evpd_block_limits(ctsio, alloc_len); 10081 break; 10082 case SVPD_BDC: 10083 if (lun == NULL || lun->be_lun->lun_type != T_DIRECT) 10084 goto err; 10085 retval = ctl_inquiry_evpd_bdc(ctsio, alloc_len); 10086 break; 10087 case SVPD_LBP: 10088 if (lun == NULL || lun->be_lun->lun_type != T_DIRECT) 10089 goto err; 10090 retval = ctl_inquiry_evpd_lbp(ctsio, alloc_len); 10091 break; 10092 default: 10093err: 10094 ctl_set_invalid_field(ctsio, 10095 /*sks_valid*/ 1, 10096 /*command*/ 1, 10097 /*field*/ 2, 10098 /*bit_valid*/ 0, 10099 /*bit*/ 0); 10100 ctl_done((union ctl_io *)ctsio); 10101 retval = CTL_RETVAL_COMPLETE; 10102 break; 10103 } 10104 10105 return (retval); 10106} 10107 10108/* 10109 * Standard INQUIRY data. 10110 */ 10111static int 10112ctl_inquiry_std(struct ctl_scsiio *ctsio) 10113{ 10114 struct scsi_inquiry_data *inq_ptr; 10115 struct scsi_inquiry *cdb; 10116 struct ctl_softc *softc = control_softc; 10117 struct ctl_port *port; 10118 struct ctl_lun *lun; 10119 char *val; 10120 uint32_t alloc_len, data_len; 10121 ctl_port_type port_type; 10122 10123 port = ctl_io_port(&ctsio->io_hdr); 10124 port_type = port->port_type; 10125 if (port_type == CTL_PORT_IOCTL || port_type == CTL_PORT_INTERNAL) 10126 port_type = CTL_PORT_SCSI; 10127 10128 lun = ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10129 cdb = (struct scsi_inquiry *)ctsio->cdb; 10130 alloc_len = scsi_2btoul(cdb->length); 10131 10132 /* 10133 * We malloc the full inquiry data size here and fill it 10134 * in. If the user only asks for less, we'll give him 10135 * that much. 10136 */ 10137 data_len = offsetof(struct scsi_inquiry_data, vendor_specific1); 10138 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 10139 inq_ptr = (struct scsi_inquiry_data *)ctsio->kern_data_ptr; 10140 ctsio->kern_sg_entries = 0; 10141 ctsio->kern_data_resid = 0; 10142 ctsio->kern_rel_offset = 0; 10143 10144 if (data_len < alloc_len) { 10145 ctsio->residual = alloc_len - data_len; 10146 ctsio->kern_data_len = data_len; 10147 ctsio->kern_total_len = data_len; 10148 } else { 10149 ctsio->residual = 0; 10150 ctsio->kern_data_len = alloc_len; 10151 ctsio->kern_total_len = alloc_len; 10152 } 10153 10154 if (lun != NULL) { 10155 if ((lun->flags & CTL_LUN_PRIMARY_SC) || 10156 softc->ha_link >= CTL_HA_LINK_UNKNOWN) { 10157 inq_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10158 lun->be_lun->lun_type; 10159 } else { 10160 inq_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | 10161 lun->be_lun->lun_type; 10162 } 10163 if (lun->flags & CTL_LUN_REMOVABLE) 10164 inq_ptr->dev_qual2 |= SID_RMB; 10165 } else 10166 inq_ptr->device = (SID_QUAL_BAD_LU << 5) | T_NODEVICE; 10167 10168 /* RMB in byte 2 is 0 */ 10169 inq_ptr->version = SCSI_REV_SPC5; 10170 10171 /* 10172 * According to SAM-3, even if a device only supports a single 10173 * level of LUN addressing, it should still set the HISUP bit: 10174 * 10175 * 4.9.1 Logical unit numbers overview 10176 * 10177 * All logical unit number formats described in this standard are 10178 * hierarchical in structure even when only a single level in that 10179 * hierarchy is used. The HISUP bit shall be set to one in the 10180 * standard INQUIRY data (see SPC-2) when any logical unit number 10181 * format described in this standard is used. Non-hierarchical 10182 * formats are outside the scope of this standard. 10183 * 10184 * Therefore we set the HiSup bit here. 10185 * 10186 * The response format is 2, per SPC-3. 10187 */ 10188 inq_ptr->response_format = SID_HiSup | 2; 10189 10190 inq_ptr->additional_length = data_len - 10191 (offsetof(struct scsi_inquiry_data, additional_length) + 1); 10192 CTL_DEBUG_PRINT(("additional_length = %d\n", 10193 inq_ptr->additional_length)); 10194 10195 inq_ptr->spc3_flags = SPC3_SID_3PC | SPC3_SID_TPGS_IMPLICIT; 10196 if (port_type == CTL_PORT_SCSI) 10197 inq_ptr->spc2_flags = SPC2_SID_ADDR16; 10198 inq_ptr->spc2_flags |= SPC2_SID_MultiP; 10199 inq_ptr->flags = SID_CmdQue; 10200 if (port_type == CTL_PORT_SCSI) 10201 inq_ptr->flags |= SID_WBus16 | SID_Sync; 10202 10203 /* 10204 * Per SPC-3, unused bytes in ASCII strings are filled with spaces. 10205 * We have 8 bytes for the vendor name, and 16 bytes for the device 10206 * name and 4 bytes for the revision. 10207 */ 10208 if (lun == NULL || (val = ctl_get_opt(&lun->be_lun->options, 10209 "vendor")) == NULL) { 10210 strncpy(inq_ptr->vendor, CTL_VENDOR, sizeof(inq_ptr->vendor)); 10211 } else { 10212 memset(inq_ptr->vendor, ' ', sizeof(inq_ptr->vendor)); 10213 strncpy(inq_ptr->vendor, val, 10214 min(sizeof(inq_ptr->vendor), strlen(val))); 10215 } 10216 if (lun == NULL) { 10217 strncpy(inq_ptr->product, CTL_DIRECT_PRODUCT, 10218 sizeof(inq_ptr->product)); 10219 } else if ((val = ctl_get_opt(&lun->be_lun->options, "product")) == NULL) { 10220 switch (lun->be_lun->lun_type) { 10221 case T_DIRECT: 10222 strncpy(inq_ptr->product, CTL_DIRECT_PRODUCT, 10223 sizeof(inq_ptr->product)); 10224 break; 10225 case T_PROCESSOR: 10226 strncpy(inq_ptr->product, CTL_PROCESSOR_PRODUCT, 10227 sizeof(inq_ptr->product)); 10228 break; 10229 case T_CDROM: 10230 strncpy(inq_ptr->product, CTL_CDROM_PRODUCT, 10231 sizeof(inq_ptr->product)); 10232 break; 10233 default: 10234 strncpy(inq_ptr->product, CTL_UNKNOWN_PRODUCT, 10235 sizeof(inq_ptr->product)); 10236 break; 10237 } 10238 } else { 10239 memset(inq_ptr->product, ' ', sizeof(inq_ptr->product)); 10240 strncpy(inq_ptr->product, val, 10241 min(sizeof(inq_ptr->product), strlen(val))); 10242 } 10243 10244 /* 10245 * XXX make this a macro somewhere so it automatically gets 10246 * incremented when we make changes. 10247 */ 10248 if (lun == NULL || (val = ctl_get_opt(&lun->be_lun->options, 10249 "revision")) == NULL) { 10250 strncpy(inq_ptr->revision, "0001", sizeof(inq_ptr->revision)); 10251 } else { 10252 memset(inq_ptr->revision, ' ', sizeof(inq_ptr->revision)); 10253 strncpy(inq_ptr->revision, val, 10254 min(sizeof(inq_ptr->revision), strlen(val))); 10255 } 10256 10257 /* 10258 * For parallel SCSI, we support double transition and single 10259 * transition clocking. We also support QAS (Quick Arbitration 10260 * and Selection) and Information Unit transfers on both the 10261 * control and array devices. 10262 */ 10263 if (port_type == CTL_PORT_SCSI) 10264 inq_ptr->spi3data = SID_SPI_CLOCK_DT_ST | SID_SPI_QAS | 10265 SID_SPI_IUS; 10266 10267 /* SAM-6 (no version claimed) */ 10268 scsi_ulto2b(0x00C0, inq_ptr->version1); 10269 /* SPC-5 (no version claimed) */ 10270 scsi_ulto2b(0x05C0, inq_ptr->version2); 10271 if (port_type == CTL_PORT_FC) { 10272 /* FCP-2 ANSI INCITS.350:2003 */ 10273 scsi_ulto2b(0x0917, inq_ptr->version3); 10274 } else if (port_type == CTL_PORT_SCSI) { 10275 /* SPI-4 ANSI INCITS.362:200x */ 10276 scsi_ulto2b(0x0B56, inq_ptr->version3); 10277 } else if (port_type == CTL_PORT_ISCSI) { 10278 /* iSCSI (no version claimed) */ 10279 scsi_ulto2b(0x0960, inq_ptr->version3); 10280 } else if (port_type == CTL_PORT_SAS) { 10281 /* SAS (no version claimed) */ 10282 scsi_ulto2b(0x0BE0, inq_ptr->version3); 10283 } 10284 10285 if (lun == NULL) { 10286 /* SBC-4 (no version claimed) */ 10287 scsi_ulto2b(0x0600, inq_ptr->version4); 10288 } else { 10289 switch (lun->be_lun->lun_type) { 10290 case T_DIRECT: 10291 /* SBC-4 (no version claimed) */ 10292 scsi_ulto2b(0x0600, inq_ptr->version4); 10293 break; 10294 case T_PROCESSOR: 10295 break; 10296 case T_CDROM: 10297 /* MMC-6 (no version claimed) */ 10298 scsi_ulto2b(0x04E0, inq_ptr->version4); 10299 break; 10300 default: 10301 break; 10302 } 10303 } 10304 10305 ctl_set_success(ctsio); 10306 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10307 ctsio->be_move_done = ctl_config_move_done; 10308 ctl_datamove((union ctl_io *)ctsio); 10309 return (CTL_RETVAL_COMPLETE); 10310} 10311 10312int 10313ctl_inquiry(struct ctl_scsiio *ctsio) 10314{ 10315 struct scsi_inquiry *cdb; 10316 int retval; 10317 10318 CTL_DEBUG_PRINT(("ctl_inquiry\n")); 10319 10320 cdb = (struct scsi_inquiry *)ctsio->cdb; 10321 if (cdb->byte2 & SI_EVPD) 10322 retval = ctl_inquiry_evpd(ctsio); 10323 else if (cdb->page_code == 0) 10324 retval = ctl_inquiry_std(ctsio); 10325 else { 10326 ctl_set_invalid_field(ctsio, 10327 /*sks_valid*/ 1, 10328 /*command*/ 1, 10329 /*field*/ 2, 10330 /*bit_valid*/ 0, 10331 /*bit*/ 0); 10332 ctl_done((union ctl_io *)ctsio); 10333 return (CTL_RETVAL_COMPLETE); 10334 } 10335 10336 return (retval); 10337} 10338 10339int 10340ctl_get_config(struct ctl_scsiio *ctsio) 10341{ 10342 struct scsi_get_config_header *hdr; 10343 struct scsi_get_config_feature *feature; 10344 struct scsi_get_config *cdb; 10345 struct ctl_lun *lun; 10346 uint32_t alloc_len, data_len; 10347 int rt, starting; 10348 10349 lun = ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10350 cdb = (struct scsi_get_config *)ctsio->cdb; 10351 rt = (cdb->rt & SGC_RT_MASK); 10352 starting = scsi_2btoul(cdb->starting_feature); 10353 alloc_len = scsi_2btoul(cdb->length); 10354 10355 data_len = sizeof(struct scsi_get_config_header) + 10356 sizeof(struct scsi_get_config_feature) + 8 + 10357 sizeof(struct scsi_get_config_feature) + 8 + 10358 sizeof(struct scsi_get_config_feature) + 4 + 10359 sizeof(struct scsi_get_config_feature) + 4 + 10360 sizeof(struct scsi_get_config_feature) + 8 + 10361 sizeof(struct scsi_get_config_feature) + 10362 sizeof(struct scsi_get_config_feature) + 4 + 10363 sizeof(struct scsi_get_config_feature) + 4 + 10364 sizeof(struct scsi_get_config_feature) + 4 + 10365 sizeof(struct scsi_get_config_feature) + 4 + 10366 sizeof(struct scsi_get_config_feature) + 4 + 10367 sizeof(struct scsi_get_config_feature) + 4; 10368 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 10369 ctsio->kern_sg_entries = 0; 10370 ctsio->kern_data_resid = 0; 10371 ctsio->kern_rel_offset = 0; 10372 10373 hdr = (struct scsi_get_config_header *)ctsio->kern_data_ptr; 10374 if (lun->flags & CTL_LUN_NO_MEDIA) 10375 scsi_ulto2b(0x0000, hdr->current_profile); 10376 else 10377 scsi_ulto2b(0x0010, hdr->current_profile); 10378 feature = (struct scsi_get_config_feature *)(hdr + 1); 10379 10380 if (starting > 0x003b) 10381 goto done; 10382 if (starting > 0x003a) 10383 goto f3b; 10384 if (starting > 0x002b) 10385 goto f3a; 10386 if (starting > 0x002a) 10387 goto f2b; 10388 if (starting > 0x001f) 10389 goto f2a; 10390 if (starting > 0x001e) 10391 goto f1f; 10392 if (starting > 0x001d) 10393 goto f1e; 10394 if (starting > 0x0010) 10395 goto f1d; 10396 if (starting > 0x0003) 10397 goto f10; 10398 if (starting > 0x0002) 10399 goto f3; 10400 if (starting > 0x0001) 10401 goto f2; 10402 if (starting > 0x0000) 10403 goto f1; 10404 10405 /* Profile List */ 10406 scsi_ulto2b(0x0000, feature->feature_code); 10407 feature->flags = SGC_F_PERSISTENT | SGC_F_CURRENT; 10408 feature->add_length = 8; 10409 scsi_ulto2b(0x0008, &feature->feature_data[0]); /* CD-ROM */ 10410 feature->feature_data[2] = 0x00; 10411 scsi_ulto2b(0x0010, &feature->feature_data[4]); /* DVD-ROM */ 10412 feature->feature_data[6] = 0x01; 10413 feature = (struct scsi_get_config_feature *) 10414 &feature->feature_data[feature->add_length]; 10415 10416f1: /* Core */ 10417 scsi_ulto2b(0x0001, feature->feature_code); 10418 feature->flags = 0x08 | SGC_F_PERSISTENT | SGC_F_CURRENT; 10419 feature->add_length = 8; 10420 scsi_ulto4b(0x00000000, &feature->feature_data[0]); 10421 feature->feature_data[4] = 0x03; 10422 feature = (struct scsi_get_config_feature *) 10423 &feature->feature_data[feature->add_length]; 10424 10425f2: /* Morphing */ 10426 scsi_ulto2b(0x0002, feature->feature_code); 10427 feature->flags = 0x04 | SGC_F_PERSISTENT | SGC_F_CURRENT; 10428 feature->add_length = 4; 10429 feature->feature_data[0] = 0x02; 10430 feature = (struct scsi_get_config_feature *) 10431 &feature->feature_data[feature->add_length]; 10432 10433f3: /* Removable Medium */ 10434 scsi_ulto2b(0x0003, feature->feature_code); 10435 feature->flags = 0x04 | SGC_F_PERSISTENT | SGC_F_CURRENT; 10436 feature->add_length = 4; 10437 feature->feature_data[0] = 0x39; 10438 feature = (struct scsi_get_config_feature *) 10439 &feature->feature_data[feature->add_length]; 10440 10441 if (rt == SGC_RT_CURRENT && (lun->flags & CTL_LUN_NO_MEDIA)) 10442 goto done; 10443 10444f10: /* Random Read */ 10445 scsi_ulto2b(0x0010, feature->feature_code); 10446 feature->flags = 0x00; 10447 if ((lun->flags & CTL_LUN_NO_MEDIA) == 0) 10448 feature->flags |= SGC_F_CURRENT; 10449 feature->add_length = 8; 10450 scsi_ulto4b(lun->be_lun->blocksize, &feature->feature_data[0]); 10451 scsi_ulto2b(1, &feature->feature_data[4]); 10452 feature->feature_data[6] = 0x00; 10453 feature = (struct scsi_get_config_feature *) 10454 &feature->feature_data[feature->add_length]; 10455 10456f1d: /* Multi-Read */ 10457 scsi_ulto2b(0x001D, feature->feature_code); 10458 feature->flags = 0x00; 10459 if ((lun->flags & CTL_LUN_NO_MEDIA) == 0) 10460 feature->flags |= SGC_F_CURRENT; 10461 feature->add_length = 0; 10462 feature = (struct scsi_get_config_feature *) 10463 &feature->feature_data[feature->add_length]; 10464 10465f1e: /* CD Read */ 10466 scsi_ulto2b(0x001E, feature->feature_code); 10467 feature->flags = 0x00; 10468 if ((lun->flags & CTL_LUN_NO_MEDIA) == 0) 10469 feature->flags |= SGC_F_CURRENT; 10470 feature->add_length = 4; 10471 feature->feature_data[0] = 0x00; 10472 feature = (struct scsi_get_config_feature *) 10473 &feature->feature_data[feature->add_length]; 10474 10475f1f: /* DVD Read */ 10476 scsi_ulto2b(0x001F, feature->feature_code); 10477 feature->flags = 0x08; 10478 if ((lun->flags & CTL_LUN_NO_MEDIA) == 0) 10479 feature->flags |= SGC_F_CURRENT; 10480 feature->add_length = 4; 10481 feature->feature_data[0] = 0x01; 10482 feature->feature_data[2] = 0x03; 10483 feature = (struct scsi_get_config_feature *) 10484 &feature->feature_data[feature->add_length]; 10485 10486f2a: /* DVD+RW */ 10487 scsi_ulto2b(0x002A, feature->feature_code); 10488 feature->flags = 0x04; 10489 if ((lun->flags & CTL_LUN_NO_MEDIA) == 0) 10490 feature->flags |= SGC_F_CURRENT; 10491 feature->add_length = 4; 10492 feature->feature_data[0] = 0x00; 10493 feature->feature_data[1] = 0x00; 10494 feature = (struct scsi_get_config_feature *) 10495 &feature->feature_data[feature->add_length]; 10496 10497f2b: /* DVD+R */ 10498 scsi_ulto2b(0x002B, feature->feature_code); 10499 feature->flags = 0x00; 10500 if ((lun->flags & CTL_LUN_NO_MEDIA) == 0) 10501 feature->flags |= SGC_F_CURRENT; 10502 feature->add_length = 4; 10503 feature->feature_data[0] = 0x00; 10504 feature = (struct scsi_get_config_feature *) 10505 &feature->feature_data[feature->add_length]; 10506 10507f3a: /* DVD+RW Dual Layer */ 10508 scsi_ulto2b(0x003A, feature->feature_code); 10509 feature->flags = 0x00; 10510 if ((lun->flags & CTL_LUN_NO_MEDIA) == 0) 10511 feature->flags |= SGC_F_CURRENT; 10512 feature->add_length = 4; 10513 feature->feature_data[0] = 0x00; 10514 feature->feature_data[1] = 0x00; 10515 feature = (struct scsi_get_config_feature *) 10516 &feature->feature_data[feature->add_length]; 10517 10518f3b: /* DVD+R Dual Layer */ 10519 scsi_ulto2b(0x003B, feature->feature_code); 10520 feature->flags = 0x00; 10521 if ((lun->flags & CTL_LUN_NO_MEDIA) == 0) 10522 feature->flags |= SGC_F_CURRENT; 10523 feature->add_length = 4; 10524 feature->feature_data[0] = 0x00; 10525 feature = (struct scsi_get_config_feature *) 10526 &feature->feature_data[feature->add_length]; 10527 10528done: 10529 data_len = (uint8_t *)feature - (uint8_t *)hdr; 10530 if (rt == SGC_RT_SPECIFIC && data_len > 4) { 10531 feature = (struct scsi_get_config_feature *)(hdr + 1); 10532 if (scsi_2btoul(feature->feature_code) == starting) 10533 feature = (struct scsi_get_config_feature *) 10534 &feature->feature_data[feature->add_length]; 10535 data_len = (uint8_t *)feature - (uint8_t *)hdr; 10536 } 10537 scsi_ulto4b(data_len - 4, hdr->data_length); 10538 if (data_len < alloc_len) { 10539 ctsio->residual = alloc_len - data_len; 10540 ctsio->kern_data_len = data_len; 10541 ctsio->kern_total_len = data_len; 10542 } else { 10543 ctsio->residual = 0; 10544 ctsio->kern_data_len = alloc_len; 10545 ctsio->kern_total_len = alloc_len; 10546 } 10547 10548 ctl_set_success(ctsio); 10549 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10550 ctsio->be_move_done = ctl_config_move_done; 10551 ctl_datamove((union ctl_io *)ctsio); 10552 return (CTL_RETVAL_COMPLETE); 10553} 10554 10555int 10556ctl_get_event_status(struct ctl_scsiio *ctsio) 10557{ 10558 struct scsi_get_event_status_header *hdr; 10559 struct scsi_get_event_status *cdb; 10560 struct ctl_lun *lun; 10561 uint32_t alloc_len, data_len; 10562 int notif_class; 10563 10564 lun = ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10565 cdb = (struct scsi_get_event_status *)ctsio->cdb; 10566 if ((cdb->byte2 & SGESN_POLLED) == 0) { 10567 ctl_set_invalid_field(ctsio, /*sks_valid*/ 1, /*command*/ 1, 10568 /*field*/ 1, /*bit_valid*/ 1, /*bit*/ 0); 10569 ctl_done((union ctl_io *)ctsio); 10570 return (CTL_RETVAL_COMPLETE); 10571 } 10572 notif_class = cdb->notif_class; 10573 alloc_len = scsi_2btoul(cdb->length); 10574 10575 data_len = sizeof(struct scsi_get_event_status_header); 10576 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 10577 ctsio->kern_sg_entries = 0; 10578 ctsio->kern_data_resid = 0; 10579 ctsio->kern_rel_offset = 0; 10580 10581 if (data_len < alloc_len) { 10582 ctsio->residual = alloc_len - data_len; 10583 ctsio->kern_data_len = data_len; 10584 ctsio->kern_total_len = data_len; 10585 } else { 10586 ctsio->residual = 0; 10587 ctsio->kern_data_len = alloc_len; 10588 ctsio->kern_total_len = alloc_len; 10589 } 10590 10591 hdr = (struct scsi_get_event_status_header *)ctsio->kern_data_ptr; 10592 scsi_ulto2b(0, hdr->descr_length); 10593 hdr->nea_class = SGESN_NEA; 10594 hdr->supported_class = 0; 10595 10596 ctl_set_success(ctsio); 10597 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10598 ctsio->be_move_done = ctl_config_move_done; 10599 ctl_datamove((union ctl_io *)ctsio); 10600 return (CTL_RETVAL_COMPLETE); 10601} 10602 10603int 10604ctl_mechanism_status(struct ctl_scsiio *ctsio) 10605{ 10606 struct scsi_mechanism_status_header *hdr; 10607 struct scsi_mechanism_status *cdb; 10608 struct ctl_lun *lun; 10609 uint32_t alloc_len, data_len; 10610 10611 lun = ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10612 cdb = (struct scsi_mechanism_status *)ctsio->cdb; 10613 alloc_len = scsi_2btoul(cdb->length); 10614 10615 data_len = sizeof(struct scsi_mechanism_status_header); 10616 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 10617 ctsio->kern_sg_entries = 0; 10618 ctsio->kern_data_resid = 0; 10619 ctsio->kern_rel_offset = 0; 10620 10621 if (data_len < alloc_len) { 10622 ctsio->residual = alloc_len - data_len; 10623 ctsio->kern_data_len = data_len; 10624 ctsio->kern_total_len = data_len; 10625 } else { 10626 ctsio->residual = 0; 10627 ctsio->kern_data_len = alloc_len; 10628 ctsio->kern_total_len = alloc_len; 10629 } 10630 10631 hdr = (struct scsi_mechanism_status_header *)ctsio->kern_data_ptr; 10632 hdr->state1 = 0x00; 10633 hdr->state2 = 0xe0; 10634 scsi_ulto3b(0, hdr->lba); 10635 hdr->slots_num = 0; 10636 scsi_ulto2b(0, hdr->slots_length); 10637 10638 ctl_set_success(ctsio); 10639 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10640 ctsio->be_move_done = ctl_config_move_done; 10641 ctl_datamove((union ctl_io *)ctsio); 10642 return (CTL_RETVAL_COMPLETE); 10643} 10644 10645static void 10646ctl_ultomsf(uint32_t lba, uint8_t *buf) 10647{ 10648 10649 lba += 150; 10650 buf[0] = 0; 10651 buf[1] = bin2bcd((lba / 75) / 60); 10652 buf[2] = bin2bcd((lba / 75) % 60); 10653 buf[3] = bin2bcd(lba % 75); 10654} 10655 10656int 10657ctl_read_toc(struct ctl_scsiio *ctsio) 10658{ 10659 struct scsi_read_toc_hdr *hdr; 10660 struct scsi_read_toc_type01_descr *descr; 10661 struct scsi_read_toc *cdb; 10662 struct ctl_lun *lun; 10663 uint32_t alloc_len, data_len; 10664 int format, msf; 10665 10666 lun = ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10667 cdb = (struct scsi_read_toc *)ctsio->cdb; 10668 msf = (cdb->byte2 & CD_MSF) != 0; 10669 format = cdb->format; 10670 alloc_len = scsi_2btoul(cdb->data_len); 10671 10672 data_len = sizeof(struct scsi_read_toc_hdr); 10673 if (format == 0) 10674 data_len += 2 * sizeof(struct scsi_read_toc_type01_descr); 10675 else 10676 data_len += sizeof(struct scsi_read_toc_type01_descr); 10677 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 10678 ctsio->kern_sg_entries = 0; 10679 ctsio->kern_data_resid = 0; 10680 ctsio->kern_rel_offset = 0; 10681 10682 if (data_len < alloc_len) { 10683 ctsio->residual = alloc_len - data_len; 10684 ctsio->kern_data_len = data_len; 10685 ctsio->kern_total_len = data_len; 10686 } else { 10687 ctsio->residual = 0; 10688 ctsio->kern_data_len = alloc_len; 10689 ctsio->kern_total_len = alloc_len; 10690 } 10691 10692 hdr = (struct scsi_read_toc_hdr *)ctsio->kern_data_ptr; 10693 if (format == 0) { 10694 scsi_ulto2b(0x12, hdr->data_length); 10695 hdr->first = 1; 10696 hdr->last = 1; 10697 descr = (struct scsi_read_toc_type01_descr *)(hdr + 1); 10698 descr->addr_ctl = 0x14; 10699 descr->track_number = 1; 10700 if (msf) 10701 ctl_ultomsf(0, descr->track_start); 10702 else 10703 scsi_ulto4b(0, descr->track_start); 10704 descr++; 10705 descr->addr_ctl = 0x14; 10706 descr->track_number = 0xaa; 10707 if (msf) 10708 ctl_ultomsf(lun->be_lun->maxlba+1, descr->track_start); 10709 else 10710 scsi_ulto4b(lun->be_lun->maxlba+1, descr->track_start); 10711 } else { 10712 scsi_ulto2b(0x0a, hdr->data_length); 10713 hdr->first = 1; 10714 hdr->last = 1; 10715 descr = (struct scsi_read_toc_type01_descr *)(hdr + 1); 10716 descr->addr_ctl = 0x14; 10717 descr->track_number = 1; 10718 if (msf) 10719 ctl_ultomsf(0, descr->track_start); 10720 else 10721 scsi_ulto4b(0, descr->track_start); 10722 } 10723 10724 ctl_set_success(ctsio); 10725 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10726 ctsio->be_move_done = ctl_config_move_done; 10727 ctl_datamove((union ctl_io *)ctsio); 10728 return (CTL_RETVAL_COMPLETE); 10729} 10730 10731/* 10732 * For known CDB types, parse the LBA and length. 10733 */ 10734static int 10735ctl_get_lba_len(union ctl_io *io, uint64_t *lba, uint64_t *len) 10736{ 10737 if (io->io_hdr.io_type != CTL_IO_SCSI) 10738 return (1); 10739 10740 switch (io->scsiio.cdb[0]) { 10741 case COMPARE_AND_WRITE: { 10742 struct scsi_compare_and_write *cdb; 10743 10744 cdb = (struct scsi_compare_and_write *)io->scsiio.cdb; 10745 10746 *lba = scsi_8btou64(cdb->addr); 10747 *len = cdb->length; 10748 break; 10749 } 10750 case READ_6: 10751 case WRITE_6: { 10752 struct scsi_rw_6 *cdb; 10753 10754 cdb = (struct scsi_rw_6 *)io->scsiio.cdb; 10755 10756 *lba = scsi_3btoul(cdb->addr); 10757 /* only 5 bits are valid in the most significant address byte */ 10758 *lba &= 0x1fffff; 10759 *len = cdb->length; 10760 break; 10761 } 10762 case READ_10: 10763 case WRITE_10: { 10764 struct scsi_rw_10 *cdb; 10765 10766 cdb = (struct scsi_rw_10 *)io->scsiio.cdb; 10767 10768 *lba = scsi_4btoul(cdb->addr); 10769 *len = scsi_2btoul(cdb->length); 10770 break; 10771 } 10772 case WRITE_VERIFY_10: { 10773 struct scsi_write_verify_10 *cdb; 10774 10775 cdb = (struct scsi_write_verify_10 *)io->scsiio.cdb; 10776 10777 *lba = scsi_4btoul(cdb->addr); 10778 *len = scsi_2btoul(cdb->length); 10779 break; 10780 } 10781 case READ_12: 10782 case WRITE_12: { 10783 struct scsi_rw_12 *cdb; 10784 10785 cdb = (struct scsi_rw_12 *)io->scsiio.cdb; 10786 10787 *lba = scsi_4btoul(cdb->addr); 10788 *len = scsi_4btoul(cdb->length); 10789 break; 10790 } 10791 case WRITE_VERIFY_12: { 10792 struct scsi_write_verify_12 *cdb; 10793 10794 cdb = (struct scsi_write_verify_12 *)io->scsiio.cdb; 10795 10796 *lba = scsi_4btoul(cdb->addr); 10797 *len = scsi_4btoul(cdb->length); 10798 break; 10799 } 10800 case READ_16: 10801 case WRITE_16: { 10802 struct scsi_rw_16 *cdb; 10803 10804 cdb = (struct scsi_rw_16 *)io->scsiio.cdb; 10805 10806 *lba = scsi_8btou64(cdb->addr); 10807 *len = scsi_4btoul(cdb->length); 10808 break; 10809 } 10810 case WRITE_ATOMIC_16: { 10811 struct scsi_write_atomic_16 *cdb; 10812 10813 cdb = (struct scsi_write_atomic_16 *)io->scsiio.cdb; 10814 10815 *lba = scsi_8btou64(cdb->addr); 10816 *len = scsi_2btoul(cdb->length); 10817 break; 10818 } 10819 case WRITE_VERIFY_16: { 10820 struct scsi_write_verify_16 *cdb; 10821 10822 cdb = (struct scsi_write_verify_16 *)io->scsiio.cdb; 10823 10824 *lba = scsi_8btou64(cdb->addr); 10825 *len = scsi_4btoul(cdb->length); 10826 break; 10827 } 10828 case WRITE_SAME_10: { 10829 struct scsi_write_same_10 *cdb; 10830 10831 cdb = (struct scsi_write_same_10 *)io->scsiio.cdb; 10832 10833 *lba = scsi_4btoul(cdb->addr); 10834 *len = scsi_2btoul(cdb->length); 10835 break; 10836 } 10837 case WRITE_SAME_16: { 10838 struct scsi_write_same_16 *cdb; 10839 10840 cdb = (struct scsi_write_same_16 *)io->scsiio.cdb; 10841 10842 *lba = scsi_8btou64(cdb->addr); 10843 *len = scsi_4btoul(cdb->length); 10844 break; 10845 } 10846 case VERIFY_10: { 10847 struct scsi_verify_10 *cdb; 10848 10849 cdb = (struct scsi_verify_10 *)io->scsiio.cdb; 10850 10851 *lba = scsi_4btoul(cdb->addr); 10852 *len = scsi_2btoul(cdb->length); 10853 break; 10854 } 10855 case VERIFY_12: { 10856 struct scsi_verify_12 *cdb; 10857 10858 cdb = (struct scsi_verify_12 *)io->scsiio.cdb; 10859 10860 *lba = scsi_4btoul(cdb->addr); 10861 *len = scsi_4btoul(cdb->length); 10862 break; 10863 } 10864 case VERIFY_16: { 10865 struct scsi_verify_16 *cdb; 10866 10867 cdb = (struct scsi_verify_16 *)io->scsiio.cdb; 10868 10869 *lba = scsi_8btou64(cdb->addr); 10870 *len = scsi_4btoul(cdb->length); 10871 break; 10872 } 10873 case UNMAP: { 10874 *lba = 0; 10875 *len = UINT64_MAX; 10876 break; 10877 } 10878 case SERVICE_ACTION_IN: { /* GET LBA STATUS */ 10879 struct scsi_get_lba_status *cdb; 10880 10881 cdb = (struct scsi_get_lba_status *)io->scsiio.cdb; 10882 *lba = scsi_8btou64(cdb->addr); 10883 *len = UINT32_MAX; 10884 break; 10885 } 10886 default: 10887 return (1); 10888 break; /* NOTREACHED */ 10889 } 10890 10891 return (0); 10892} 10893 10894static ctl_action 10895ctl_extent_check_lba(uint64_t lba1, uint64_t len1, uint64_t lba2, uint64_t len2, 10896 bool seq) 10897{ 10898 uint64_t endlba1, endlba2; 10899 10900 endlba1 = lba1 + len1 - (seq ? 0 : 1); 10901 endlba2 = lba2 + len2 - 1; 10902 10903 if ((endlba1 < lba2) || (endlba2 < lba1)) 10904 return (CTL_ACTION_PASS); 10905 else 10906 return (CTL_ACTION_BLOCK); 10907} 10908 10909static int 10910ctl_extent_check_unmap(union ctl_io *io, uint64_t lba2, uint64_t len2) 10911{ 10912 struct ctl_ptr_len_flags *ptrlen; 10913 struct scsi_unmap_desc *buf, *end, *range; 10914 uint64_t lba; 10915 uint32_t len; 10916 10917 /* If not UNMAP -- go other way. */ 10918 if (io->io_hdr.io_type != CTL_IO_SCSI || 10919 io->scsiio.cdb[0] != UNMAP) 10920 return (CTL_ACTION_ERROR); 10921 10922 /* If UNMAP without data -- block and wait for data. */ 10923 ptrlen = (struct ctl_ptr_len_flags *) 10924 &io->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 10925 if ((io->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0 || 10926 ptrlen->ptr == NULL) 10927 return (CTL_ACTION_BLOCK); 10928 10929 /* UNMAP with data -- check for collision. */ 10930 buf = (struct scsi_unmap_desc *)ptrlen->ptr; 10931 end = buf + ptrlen->len / sizeof(*buf); 10932 for (range = buf; range < end; range++) { 10933 lba = scsi_8btou64(range->lba); 10934 len = scsi_4btoul(range->length); 10935 if ((lba < lba2 + len2) && (lba + len > lba2)) 10936 return (CTL_ACTION_BLOCK); 10937 } 10938 return (CTL_ACTION_PASS); 10939} 10940 10941static ctl_action 10942ctl_extent_check(union ctl_io *io1, union ctl_io *io2, bool seq) 10943{ 10944 uint64_t lba1, lba2; 10945 uint64_t len1, len2; 10946 int retval; 10947 10948 if (ctl_get_lba_len(io2, &lba2, &len2) != 0) 10949 return (CTL_ACTION_ERROR); 10950 10951 retval = ctl_extent_check_unmap(io1, lba2, len2); 10952 if (retval != CTL_ACTION_ERROR) 10953 return (retval); 10954 10955 if (ctl_get_lba_len(io1, &lba1, &len1) != 0) 10956 return (CTL_ACTION_ERROR); 10957 10958 if (io1->io_hdr.flags & CTL_FLAG_SERSEQ_DONE) 10959 seq = FALSE; 10960 return (ctl_extent_check_lba(lba1, len1, lba2, len2, seq)); 10961} 10962 10963static ctl_action 10964ctl_extent_check_seq(union ctl_io *io1, union ctl_io *io2) 10965{ 10966 uint64_t lba1, lba2; 10967 uint64_t len1, len2; 10968 10969 if (io1->io_hdr.flags & CTL_FLAG_SERSEQ_DONE) 10970 return (CTL_ACTION_PASS); 10971 if (ctl_get_lba_len(io1, &lba1, &len1) != 0) 10972 return (CTL_ACTION_ERROR); 10973 if (ctl_get_lba_len(io2, &lba2, &len2) != 0) 10974 return (CTL_ACTION_ERROR); 10975 10976 if (lba1 + len1 == lba2) 10977 return (CTL_ACTION_BLOCK); 10978 return (CTL_ACTION_PASS); 10979} 10980 10981static ctl_action 10982ctl_check_for_blockage(struct ctl_lun *lun, union ctl_io *pending_io, 10983 union ctl_io *ooa_io) 10984{ 10985 const struct ctl_cmd_entry *pending_entry, *ooa_entry; 10986 const ctl_serialize_action *serialize_row; 10987 10988 /* 10989 * The initiator attempted multiple untagged commands at the same 10990 * time. Can't do that. 10991 */ 10992 if ((pending_io->scsiio.tag_type == CTL_TAG_UNTAGGED) 10993 && (ooa_io->scsiio.tag_type == CTL_TAG_UNTAGGED) 10994 && ((pending_io->io_hdr.nexus.targ_port == 10995 ooa_io->io_hdr.nexus.targ_port) 10996 && (pending_io->io_hdr.nexus.initid == 10997 ooa_io->io_hdr.nexus.initid)) 10998 && ((ooa_io->io_hdr.flags & (CTL_FLAG_ABORT | 10999 CTL_FLAG_STATUS_SENT)) == 0)) 11000 return (CTL_ACTION_OVERLAP); 11001 11002 /* 11003 * The initiator attempted to send multiple tagged commands with 11004 * the same ID. (It's fine if different initiators have the same 11005 * tag ID.) 11006 * 11007 * Even if all of those conditions are true, we don't kill the I/O 11008 * if the command ahead of us has been aborted. We won't end up 11009 * sending it to the FETD, and it's perfectly legal to resend a 11010 * command with the same tag number as long as the previous 11011 * instance of this tag number has been aborted somehow. 11012 */ 11013 if ((pending_io->scsiio.tag_type != CTL_TAG_UNTAGGED) 11014 && (ooa_io->scsiio.tag_type != CTL_TAG_UNTAGGED) 11015 && (pending_io->scsiio.tag_num == ooa_io->scsiio.tag_num) 11016 && ((pending_io->io_hdr.nexus.targ_port == 11017 ooa_io->io_hdr.nexus.targ_port) 11018 && (pending_io->io_hdr.nexus.initid == 11019 ooa_io->io_hdr.nexus.initid)) 11020 && ((ooa_io->io_hdr.flags & (CTL_FLAG_ABORT | 11021 CTL_FLAG_STATUS_SENT)) == 0)) 11022 return (CTL_ACTION_OVERLAP_TAG); 11023 11024 /* 11025 * If we get a head of queue tag, SAM-3 says that we should 11026 * immediately execute it. 11027 * 11028 * What happens if this command would normally block for some other 11029 * reason? e.g. a request sense with a head of queue tag 11030 * immediately after a write. Normally that would block, but this 11031 * will result in its getting executed immediately... 11032 * 11033 * We currently return "pass" instead of "skip", so we'll end up 11034 * going through the rest of the queue to check for overlapped tags. 11035 * 11036 * XXX KDM check for other types of blockage first?? 11037 */ 11038 if (pending_io->scsiio.tag_type == CTL_TAG_HEAD_OF_QUEUE) 11039 return (CTL_ACTION_PASS); 11040 11041 /* 11042 * Ordered tags have to block until all items ahead of them 11043 * have completed. If we get called with an ordered tag, we always 11044 * block, if something else is ahead of us in the queue. 11045 */ 11046 if (pending_io->scsiio.tag_type == CTL_TAG_ORDERED) 11047 return (CTL_ACTION_BLOCK); 11048 11049 /* 11050 * Simple tags get blocked until all head of queue and ordered tags 11051 * ahead of them have completed. I'm lumping untagged commands in 11052 * with simple tags here. XXX KDM is that the right thing to do? 11053 */ 11054 if (((pending_io->scsiio.tag_type == CTL_TAG_UNTAGGED) 11055 || (pending_io->scsiio.tag_type == CTL_TAG_SIMPLE)) 11056 && ((ooa_io->scsiio.tag_type == CTL_TAG_HEAD_OF_QUEUE) 11057 || (ooa_io->scsiio.tag_type == CTL_TAG_ORDERED))) 11058 return (CTL_ACTION_BLOCK); 11059 11060 pending_entry = ctl_get_cmd_entry(&pending_io->scsiio, NULL); 11061 KASSERT(pending_entry->seridx < CTL_SERIDX_COUNT, 11062 ("%s: Invalid seridx %d for pending CDB %02x %02x @ %p", 11063 __func__, pending_entry->seridx, pending_io->scsiio.cdb[0], 11064 pending_io->scsiio.cdb[1], pending_io)); 11065 ooa_entry = ctl_get_cmd_entry(&ooa_io->scsiio, NULL); 11066 if (ooa_entry->seridx == CTL_SERIDX_INVLD) 11067 return (CTL_ACTION_PASS); /* Unsupported command in OOA queue */ 11068 KASSERT(ooa_entry->seridx < CTL_SERIDX_COUNT, 11069 ("%s: Invalid seridx %d for ooa CDB %02x %02x @ %p", 11070 __func__, ooa_entry->seridx, ooa_io->scsiio.cdb[0], 11071 ooa_io->scsiio.cdb[1], ooa_io)); 11072 11073 serialize_row = ctl_serialize_table[ooa_entry->seridx]; 11074 11075 switch (serialize_row[pending_entry->seridx]) { 11076 case CTL_SER_BLOCK: 11077 return (CTL_ACTION_BLOCK); 11078 case CTL_SER_EXTENT: 11079 return (ctl_extent_check(ooa_io, pending_io, 11080 (lun->be_lun && lun->be_lun->serseq == CTL_LUN_SERSEQ_ON))); 11081 case CTL_SER_EXTENTOPT: 11082 if ((lun->MODE_CTRL.queue_flags & SCP_QUEUE_ALG_MASK) != 11083 SCP_QUEUE_ALG_UNRESTRICTED) 11084 return (ctl_extent_check(ooa_io, pending_io, 11085 (lun->be_lun && 11086 lun->be_lun->serseq == CTL_LUN_SERSEQ_ON))); 11087 return (CTL_ACTION_PASS); 11088 case CTL_SER_EXTENTSEQ: 11089 if (lun->be_lun && lun->be_lun->serseq != CTL_LUN_SERSEQ_OFF) 11090 return (ctl_extent_check_seq(ooa_io, pending_io)); 11091 return (CTL_ACTION_PASS); 11092 case CTL_SER_PASS: 11093 return (CTL_ACTION_PASS); 11094 case CTL_SER_BLOCKOPT: 11095 if ((lun->MODE_CTRL.queue_flags & SCP_QUEUE_ALG_MASK) != 11096 SCP_QUEUE_ALG_UNRESTRICTED) 11097 return (CTL_ACTION_BLOCK); 11098 return (CTL_ACTION_PASS); 11099 case CTL_SER_SKIP: 11100 return (CTL_ACTION_SKIP); 11101 default: 11102 panic("%s: Invalid serialization value %d for %d => %d", 11103 __func__, serialize_row[pending_entry->seridx], 11104 pending_entry->seridx, ooa_entry->seridx); 11105 } 11106 11107 return (CTL_ACTION_ERROR); 11108} 11109 11110/* 11111 * Check for blockage or overlaps against the OOA (Order Of Arrival) queue. 11112 * Assumptions: 11113 * - pending_io is generally either incoming, or on the blocked queue 11114 * - starting I/O is the I/O we want to start the check with. 11115 */ 11116static ctl_action 11117ctl_check_ooa(struct ctl_lun *lun, union ctl_io *pending_io, 11118 union ctl_io *starting_io) 11119{ 11120 union ctl_io *ooa_io; 11121 ctl_action action; 11122 11123 mtx_assert(&lun->lun_lock, MA_OWNED); 11124 11125 /* 11126 * Run back along the OOA queue, starting with the current 11127 * blocked I/O and going through every I/O before it on the 11128 * queue. If starting_io is NULL, we'll just end up returning 11129 * CTL_ACTION_PASS. 11130 */ 11131 for (ooa_io = starting_io; ooa_io != NULL; 11132 ooa_io = (union ctl_io *)TAILQ_PREV(&ooa_io->io_hdr, ctl_ooaq, 11133 ooa_links)){ 11134 11135 /* 11136 * This routine just checks to see whether 11137 * cur_blocked is blocked by ooa_io, which is ahead 11138 * of it in the queue. It doesn't queue/dequeue 11139 * cur_blocked. 11140 */ 11141 action = ctl_check_for_blockage(lun, pending_io, ooa_io); 11142 switch (action) { 11143 case CTL_ACTION_BLOCK: 11144 case CTL_ACTION_OVERLAP: 11145 case CTL_ACTION_OVERLAP_TAG: 11146 case CTL_ACTION_SKIP: 11147 case CTL_ACTION_ERROR: 11148 return (action); 11149 break; /* NOTREACHED */ 11150 case CTL_ACTION_PASS: 11151 break; 11152 default: 11153 panic("%s: Invalid action %d\n", __func__, action); 11154 } 11155 } 11156 11157 return (CTL_ACTION_PASS); 11158} 11159 11160/* 11161 * Assumptions: 11162 * - An I/O has just completed, and has been removed from the per-LUN OOA 11163 * queue, so some items on the blocked queue may now be unblocked. 11164 */ 11165static int 11166ctl_check_blocked(struct ctl_lun *lun) 11167{ 11168 struct ctl_softc *softc = lun->ctl_softc; 11169 union ctl_io *cur_blocked, *next_blocked; 11170 11171 mtx_assert(&lun->lun_lock, MA_OWNED); 11172 11173 /* 11174 * Run forward from the head of the blocked queue, checking each 11175 * entry against the I/Os prior to it on the OOA queue to see if 11176 * there is still any blockage. 11177 * 11178 * We cannot use the TAILQ_FOREACH() macro, because it can't deal 11179 * with our removing a variable on it while it is traversing the 11180 * list. 11181 */ 11182 for (cur_blocked = (union ctl_io *)TAILQ_FIRST(&lun->blocked_queue); 11183 cur_blocked != NULL; cur_blocked = next_blocked) { 11184 union ctl_io *prev_ooa; 11185 ctl_action action; 11186 11187 next_blocked = (union ctl_io *)TAILQ_NEXT(&cur_blocked->io_hdr, 11188 blocked_links); 11189 11190 prev_ooa = (union ctl_io *)TAILQ_PREV(&cur_blocked->io_hdr, 11191 ctl_ooaq, ooa_links); 11192 11193 /* 11194 * If cur_blocked happens to be the first item in the OOA 11195 * queue now, prev_ooa will be NULL, and the action 11196 * returned will just be CTL_ACTION_PASS. 11197 */ 11198 action = ctl_check_ooa(lun, cur_blocked, prev_ooa); 11199 11200 switch (action) { 11201 case CTL_ACTION_BLOCK: 11202 /* Nothing to do here, still blocked */ 11203 break; 11204 case CTL_ACTION_OVERLAP: 11205 case CTL_ACTION_OVERLAP_TAG: 11206 /* 11207 * This shouldn't happen! In theory we've already 11208 * checked this command for overlap... 11209 */ 11210 break; 11211 case CTL_ACTION_PASS: 11212 case CTL_ACTION_SKIP: { 11213 const struct ctl_cmd_entry *entry; 11214 11215 /* 11216 * The skip case shouldn't happen, this transaction 11217 * should have never made it onto the blocked queue. 11218 */ 11219 /* 11220 * This I/O is no longer blocked, we can remove it 11221 * from the blocked queue. Since this is a TAILQ 11222 * (doubly linked list), we can do O(1) removals 11223 * from any place on the list. 11224 */ 11225 TAILQ_REMOVE(&lun->blocked_queue, &cur_blocked->io_hdr, 11226 blocked_links); 11227 cur_blocked->io_hdr.flags &= ~CTL_FLAG_BLOCKED; 11228 11229 if ((softc->ha_mode != CTL_HA_MODE_XFER) && 11230 (cur_blocked->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)){ 11231 /* 11232 * Need to send IO back to original side to 11233 * run 11234 */ 11235 union ctl_ha_msg msg_info; 11236 11237 cur_blocked->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 11238 msg_info.hdr.original_sc = 11239 cur_blocked->io_hdr.original_sc; 11240 msg_info.hdr.serializing_sc = cur_blocked; 11241 msg_info.hdr.msg_type = CTL_MSG_R2R; 11242 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 11243 sizeof(msg_info.hdr), M_NOWAIT); 11244 break; 11245 } 11246 entry = ctl_get_cmd_entry(&cur_blocked->scsiio, NULL); 11247 11248 /* 11249 * Check this I/O for LUN state changes that may 11250 * have happened while this command was blocked. 11251 * The LUN state may have been changed by a command 11252 * ahead of us in the queue, so we need to re-check 11253 * for any states that can be caused by SCSI 11254 * commands. 11255 */ 11256 if (ctl_scsiio_lun_check(lun, entry, 11257 &cur_blocked->scsiio) == 0) { 11258 cur_blocked->io_hdr.flags |= 11259 CTL_FLAG_IS_WAS_ON_RTR; 11260 ctl_enqueue_rtr(cur_blocked); 11261 } else 11262 ctl_done(cur_blocked); 11263 break; 11264 } 11265 default: 11266 /* 11267 * This probably shouldn't happen -- we shouldn't 11268 * get CTL_ACTION_ERROR, or anything else. 11269 */ 11270 break; 11271 } 11272 } 11273 11274 return (CTL_RETVAL_COMPLETE); 11275} 11276 11277/* 11278 * This routine (with one exception) checks LUN flags that can be set by 11279 * commands ahead of us in the OOA queue. These flags have to be checked 11280 * when a command initially comes in, and when we pull a command off the 11281 * blocked queue and are preparing to execute it. The reason we have to 11282 * check these flags for commands on the blocked queue is that the LUN 11283 * state may have been changed by a command ahead of us while we're on the 11284 * blocked queue. 11285 * 11286 * Ordering is somewhat important with these checks, so please pay 11287 * careful attention to the placement of any new checks. 11288 */ 11289static int 11290ctl_scsiio_lun_check(struct ctl_lun *lun, 11291 const struct ctl_cmd_entry *entry, struct ctl_scsiio *ctsio) 11292{ 11293 struct ctl_softc *softc = lun->ctl_softc; 11294 int retval; 11295 uint32_t residx; 11296 11297 retval = 0; 11298 11299 mtx_assert(&lun->lun_lock, MA_OWNED); 11300 11301 /* 11302 * If this shelf is a secondary shelf controller, we may have to 11303 * reject some commands disallowed by HA mode and link state. 11304 */ 11305 if ((lun->flags & CTL_LUN_PRIMARY_SC) == 0) { 11306 if (softc->ha_link == CTL_HA_LINK_OFFLINE && 11307 (entry->flags & CTL_CMD_FLAG_OK_ON_UNAVAIL) == 0) { 11308 ctl_set_lun_unavail(ctsio); 11309 retval = 1; 11310 goto bailout; 11311 } 11312 if ((lun->flags & CTL_LUN_PEER_SC_PRIMARY) == 0 && 11313 (entry->flags & CTL_CMD_FLAG_OK_ON_UNAVAIL) == 0) { 11314 ctl_set_lun_transit(ctsio); 11315 retval = 1; 11316 goto bailout; 11317 } 11318 if (softc->ha_mode == CTL_HA_MODE_ACT_STBY && 11319 (entry->flags & CTL_CMD_FLAG_OK_ON_STANDBY) == 0) { 11320 ctl_set_lun_standby(ctsio); 11321 retval = 1; 11322 goto bailout; 11323 } 11324 11325 /* The rest of checks are only done on executing side */ 11326 if (softc->ha_mode == CTL_HA_MODE_XFER) 11327 goto bailout; 11328 } 11329 11330 if (entry->pattern & CTL_LUN_PAT_WRITE) { 11331 if (lun->be_lun && 11332 lun->be_lun->flags & CTL_LUN_FLAG_READONLY) { 11333 ctl_set_hw_write_protected(ctsio); 11334 retval = 1; 11335 goto bailout; 11336 } 11337 if ((lun->MODE_CTRL.eca_and_aen & SCP_SWP) != 0) { 11338 ctl_set_sense(ctsio, /*current_error*/ 1, 11339 /*sense_key*/ SSD_KEY_DATA_PROTECT, 11340 /*asc*/ 0x27, /*ascq*/ 0x02, SSD_ELEM_NONE); 11341 retval = 1; 11342 goto bailout; 11343 } 11344 } 11345 11346 /* 11347 * Check for a reservation conflict. If this command isn't allowed 11348 * even on reserved LUNs, and if this initiator isn't the one who 11349 * reserved us, reject the command with a reservation conflict. 11350 */ 11351 residx = ctl_get_initindex(&ctsio->io_hdr.nexus); 11352 if ((lun->flags & CTL_LUN_RESERVED) 11353 && ((entry->flags & CTL_CMD_FLAG_ALLOW_ON_RESV) == 0)) { 11354 if (lun->res_idx != residx) { 11355 ctl_set_reservation_conflict(ctsio); 11356 retval = 1; 11357 goto bailout; 11358 } 11359 } 11360 11361 if ((lun->flags & CTL_LUN_PR_RESERVED) == 0 || 11362 (entry->flags & CTL_CMD_FLAG_ALLOW_ON_PR_RESV)) { 11363 /* No reservation or command is allowed. */; 11364 } else if ((entry->flags & CTL_CMD_FLAG_ALLOW_ON_PR_WRESV) && 11365 (lun->pr_res_type == SPR_TYPE_WR_EX || 11366 lun->pr_res_type == SPR_TYPE_WR_EX_RO || 11367 lun->pr_res_type == SPR_TYPE_WR_EX_AR)) { 11368 /* The command is allowed for Write Exclusive resv. */; 11369 } else { 11370 /* 11371 * if we aren't registered or it's a res holder type 11372 * reservation and this isn't the res holder then set a 11373 * conflict. 11374 */ 11375 if (ctl_get_prkey(lun, residx) == 0 || 11376 (residx != lun->pr_res_idx && lun->pr_res_type < 4)) { 11377 ctl_set_reservation_conflict(ctsio); 11378 retval = 1; 11379 goto bailout; 11380 } 11381 } 11382 11383 if ((entry->flags & CTL_CMD_FLAG_OK_ON_NO_MEDIA) == 0) { 11384 if (lun->flags & CTL_LUN_EJECTED) 11385 ctl_set_lun_ejected(ctsio); 11386 else if (lun->flags & CTL_LUN_NO_MEDIA) { 11387 if (lun->flags & CTL_LUN_REMOVABLE) 11388 ctl_set_lun_no_media(ctsio); 11389 else 11390 ctl_set_lun_int_reqd(ctsio); 11391 } else if (lun->flags & CTL_LUN_STOPPED) 11392 ctl_set_lun_stopped(ctsio); 11393 else 11394 goto bailout; 11395 retval = 1; 11396 goto bailout; 11397 } 11398 11399bailout: 11400 return (retval); 11401} 11402 11403static void 11404ctl_failover_io(union ctl_io *io, int have_lock) 11405{ 11406 ctl_set_busy(&io->scsiio); 11407 ctl_done(io); 11408} 11409 11410static void 11411ctl_failover_lun(union ctl_io *rio) 11412{ 11413 struct ctl_softc *softc = control_softc; 11414 struct ctl_lun *lun; 11415 struct ctl_io_hdr *io, *next_io; 11416 uint32_t targ_lun; 11417 11418 targ_lun = rio->io_hdr.nexus.targ_mapped_lun; 11419 CTL_DEBUG_PRINT(("FAILOVER for lun %ju\n", targ_lun)); 11420 11421 /* Find and lock the LUN. */ 11422 mtx_lock(&softc->ctl_lock); 11423 if (targ_lun > CTL_MAX_LUNS || 11424 (lun = softc->ctl_luns[targ_lun]) == NULL) { 11425 mtx_unlock(&softc->ctl_lock); 11426 return; 11427 } 11428 mtx_lock(&lun->lun_lock); 11429 mtx_unlock(&softc->ctl_lock); 11430 if (lun->flags & CTL_LUN_DISABLED) { 11431 mtx_unlock(&lun->lun_lock); 11432 return; 11433 } 11434 11435 if (softc->ha_mode == CTL_HA_MODE_XFER) { 11436 TAILQ_FOREACH_SAFE(io, &lun->ooa_queue, ooa_links, next_io) { 11437 /* We are master */ 11438 if (io->flags & CTL_FLAG_FROM_OTHER_SC) { 11439 if (io->flags & CTL_FLAG_IO_ACTIVE) { 11440 io->flags |= CTL_FLAG_ABORT; 11441 io->flags |= CTL_FLAG_FAILOVER; 11442 } else { /* This can be only due to DATAMOVE */ 11443 io->msg_type = CTL_MSG_DATAMOVE_DONE; 11444 io->flags &= ~CTL_FLAG_DMA_INPROG; 11445 io->flags |= CTL_FLAG_IO_ACTIVE; 11446 io->port_status = 31340; 11447 ctl_enqueue_isc((union ctl_io *)io); 11448 } 11449 } 11450 /* We are slave */ 11451 if (io->flags & CTL_FLAG_SENT_2OTHER_SC) { 11452 io->flags &= ~CTL_FLAG_SENT_2OTHER_SC; 11453 if (io->flags & CTL_FLAG_IO_ACTIVE) { 11454 io->flags |= CTL_FLAG_FAILOVER; 11455 } else { 11456 ctl_set_busy(&((union ctl_io *)io)-> 11457 scsiio); 11458 ctl_done((union ctl_io *)io); 11459 } 11460 } 11461 } 11462 } else { /* SERIALIZE modes */ 11463 TAILQ_FOREACH_SAFE(io, &lun->blocked_queue, blocked_links, 11464 next_io) { 11465 /* We are master */ 11466 if (io->flags & CTL_FLAG_FROM_OTHER_SC) { 11467 TAILQ_REMOVE(&lun->blocked_queue, io, 11468 blocked_links); 11469 io->flags &= ~CTL_FLAG_BLOCKED; 11470 TAILQ_REMOVE(&lun->ooa_queue, io, ooa_links); 11471 ctl_free_io((union ctl_io *)io); 11472 } 11473 } 11474 TAILQ_FOREACH_SAFE(io, &lun->ooa_queue, ooa_links, next_io) { 11475 /* We are master */ 11476 if (io->flags & CTL_FLAG_FROM_OTHER_SC) { 11477 TAILQ_REMOVE(&lun->ooa_queue, io, ooa_links); 11478 ctl_free_io((union ctl_io *)io); 11479 } 11480 /* We are slave */ 11481 if (io->flags & CTL_FLAG_SENT_2OTHER_SC) { 11482 io->flags &= ~CTL_FLAG_SENT_2OTHER_SC; 11483 if (!(io->flags & CTL_FLAG_IO_ACTIVE)) { 11484 ctl_set_busy(&((union ctl_io *)io)-> 11485 scsiio); 11486 ctl_done((union ctl_io *)io); 11487 } 11488 } 11489 } 11490 ctl_check_blocked(lun); 11491 } 11492 mtx_unlock(&lun->lun_lock); 11493} 11494 11495static int 11496ctl_scsiio_precheck(struct ctl_softc *softc, struct ctl_scsiio *ctsio) 11497{ 11498 struct ctl_lun *lun; 11499 const struct ctl_cmd_entry *entry; 11500 uint32_t initidx, targ_lun; 11501 int retval = 0; 11502 11503 lun = NULL; 11504 targ_lun = ctsio->io_hdr.nexus.targ_mapped_lun; 11505 if (targ_lun < CTL_MAX_LUNS) 11506 lun = softc->ctl_luns[targ_lun]; 11507 if (lun) { 11508 /* 11509 * If the LUN is invalid, pretend that it doesn't exist. 11510 * It will go away as soon as all pending I/O has been 11511 * completed. 11512 */ 11513 mtx_lock(&lun->lun_lock); 11514 if (lun->flags & CTL_LUN_DISABLED) { 11515 mtx_unlock(&lun->lun_lock); 11516 lun = NULL; 11517 } 11518 } 11519 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr = lun; 11520 if (lun) { 11521 ctsio->io_hdr.ctl_private[CTL_PRIV_BACKEND_LUN].ptr = 11522 lun->be_lun; 11523 11524 /* 11525 * Every I/O goes into the OOA queue for a particular LUN, 11526 * and stays there until completion. 11527 */ 11528#ifdef CTL_TIME_IO 11529 if (TAILQ_EMPTY(&lun->ooa_queue)) 11530 lun->idle_time += getsbinuptime() - lun->last_busy; 11531#endif 11532 TAILQ_INSERT_TAIL(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 11533 } 11534 11535 /* Get command entry and return error if it is unsuppotyed. */ 11536 entry = ctl_validate_command(ctsio); 11537 if (entry == NULL) { 11538 if (lun) 11539 mtx_unlock(&lun->lun_lock); 11540 return (retval); 11541 } 11542 11543 ctsio->io_hdr.flags &= ~CTL_FLAG_DATA_MASK; 11544 ctsio->io_hdr.flags |= entry->flags & CTL_FLAG_DATA_MASK; 11545 11546 /* 11547 * Check to see whether we can send this command to LUNs that don't 11548 * exist. This should pretty much only be the case for inquiry 11549 * and request sense. Further checks, below, really require having 11550 * a LUN, so we can't really check the command anymore. Just put 11551 * it on the rtr queue. 11552 */ 11553 if (lun == NULL) { 11554 if (entry->flags & CTL_CMD_FLAG_OK_ON_NO_LUN) { 11555 ctsio->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 11556 ctl_enqueue_rtr((union ctl_io *)ctsio); 11557 return (retval); 11558 } 11559 11560 ctl_set_unsupported_lun(ctsio); 11561 ctl_done((union ctl_io *)ctsio); 11562 CTL_DEBUG_PRINT(("ctl_scsiio_precheck: bailing out due to invalid LUN\n")); 11563 return (retval); 11564 } else { 11565 /* 11566 * Make sure we support this particular command on this LUN. 11567 * e.g., we don't support writes to the control LUN. 11568 */ 11569 if (!ctl_cmd_applicable(lun->be_lun->lun_type, entry)) { 11570 mtx_unlock(&lun->lun_lock); 11571 ctl_set_invalid_opcode(ctsio); 11572 ctl_done((union ctl_io *)ctsio); 11573 return (retval); 11574 } 11575 } 11576 11577 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 11578 11579#ifdef CTL_WITH_CA 11580 /* 11581 * If we've got a request sense, it'll clear the contingent 11582 * allegiance condition. Otherwise, if we have a CA condition for 11583 * this initiator, clear it, because it sent down a command other 11584 * than request sense. 11585 */ 11586 if ((ctsio->cdb[0] != REQUEST_SENSE) 11587 && (ctl_is_set(lun->have_ca, initidx))) 11588 ctl_clear_mask(lun->have_ca, initidx); 11589#endif 11590 11591 /* 11592 * If the command has this flag set, it handles its own unit 11593 * attention reporting, we shouldn't do anything. Otherwise we 11594 * check for any pending unit attentions, and send them back to the 11595 * initiator. We only do this when a command initially comes in, 11596 * not when we pull it off the blocked queue. 11597 * 11598 * According to SAM-3, section 5.3.2, the order that things get 11599 * presented back to the host is basically unit attentions caused 11600 * by some sort of reset event, busy status, reservation conflicts 11601 * or task set full, and finally any other status. 11602 * 11603 * One issue here is that some of the unit attentions we report 11604 * don't fall into the "reset" category (e.g. "reported luns data 11605 * has changed"). So reporting it here, before the reservation 11606 * check, may be technically wrong. I guess the only thing to do 11607 * would be to check for and report the reset events here, and then 11608 * check for the other unit attention types after we check for a 11609 * reservation conflict. 11610 * 11611 * XXX KDM need to fix this 11612 */ 11613 if ((entry->flags & CTL_CMD_FLAG_NO_SENSE) == 0) { 11614 ctl_ua_type ua_type; 11615 u_int sense_len = 0; 11616 11617 ua_type = ctl_build_ua(lun, initidx, &ctsio->sense_data, 11618 &sense_len, SSD_TYPE_NONE); 11619 if (ua_type != CTL_UA_NONE) { 11620 mtx_unlock(&lun->lun_lock); 11621 ctsio->scsi_status = SCSI_STATUS_CHECK_COND; 11622 ctsio->io_hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 11623 ctsio->sense_len = sense_len; 11624 ctl_done((union ctl_io *)ctsio); 11625 return (retval); 11626 } 11627 } 11628 11629 11630 if (ctl_scsiio_lun_check(lun, entry, ctsio) != 0) { 11631 mtx_unlock(&lun->lun_lock); 11632 ctl_done((union ctl_io *)ctsio); 11633 return (retval); 11634 } 11635 11636 /* 11637 * XXX CHD this is where we want to send IO to other side if 11638 * this LUN is secondary on this SC. We will need to make a copy 11639 * of the IO and flag the IO on this side as SENT_2OTHER and the flag 11640 * the copy we send as FROM_OTHER. 11641 * We also need to stuff the address of the original IO so we can 11642 * find it easily. Something similar will need be done on the other 11643 * side so when we are done we can find the copy. 11644 */ 11645 if ((lun->flags & CTL_LUN_PRIMARY_SC) == 0 && 11646 (lun->flags & CTL_LUN_PEER_SC_PRIMARY) != 0 && 11647 (entry->flags & CTL_CMD_FLAG_RUN_HERE) == 0) { 11648 union ctl_ha_msg msg_info; 11649 int isc_retval; 11650 11651 ctsio->io_hdr.flags |= CTL_FLAG_SENT_2OTHER_SC; 11652 ctsio->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 11653 mtx_unlock(&lun->lun_lock); 11654 11655 msg_info.hdr.msg_type = CTL_MSG_SERIALIZE; 11656 msg_info.hdr.original_sc = (union ctl_io *)ctsio; 11657 msg_info.hdr.serializing_sc = NULL; 11658 msg_info.hdr.nexus = ctsio->io_hdr.nexus; 11659 msg_info.scsi.tag_num = ctsio->tag_num; 11660 msg_info.scsi.tag_type = ctsio->tag_type; 11661 msg_info.scsi.cdb_len = ctsio->cdb_len; 11662 memcpy(msg_info.scsi.cdb, ctsio->cdb, CTL_MAX_CDBLEN); 11663 11664 if ((isc_retval = ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 11665 sizeof(msg_info.scsi) - sizeof(msg_info.scsi.sense_data), 11666 M_WAITOK)) > CTL_HA_STATUS_SUCCESS) { 11667 ctl_set_busy(ctsio); 11668 ctl_done((union ctl_io *)ctsio); 11669 return (retval); 11670 } 11671 return (retval); 11672 } 11673 11674 switch (ctl_check_ooa(lun, (union ctl_io *)ctsio, 11675 (union ctl_io *)TAILQ_PREV(&ctsio->io_hdr, 11676 ctl_ooaq, ooa_links))) { 11677 case CTL_ACTION_BLOCK: 11678 ctsio->io_hdr.flags |= CTL_FLAG_BLOCKED; 11679 TAILQ_INSERT_TAIL(&lun->blocked_queue, &ctsio->io_hdr, 11680 blocked_links); 11681 mtx_unlock(&lun->lun_lock); 11682 return (retval); 11683 case CTL_ACTION_PASS: 11684 case CTL_ACTION_SKIP: 11685 ctsio->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 11686 mtx_unlock(&lun->lun_lock); 11687 ctl_enqueue_rtr((union ctl_io *)ctsio); 11688 break; 11689 case CTL_ACTION_OVERLAP: 11690 mtx_unlock(&lun->lun_lock); 11691 ctl_set_overlapped_cmd(ctsio); 11692 ctl_done((union ctl_io *)ctsio); 11693 break; 11694 case CTL_ACTION_OVERLAP_TAG: 11695 mtx_unlock(&lun->lun_lock); 11696 ctl_set_overlapped_tag(ctsio, ctsio->tag_num & 0xff); 11697 ctl_done((union ctl_io *)ctsio); 11698 break; 11699 case CTL_ACTION_ERROR: 11700 default: 11701 mtx_unlock(&lun->lun_lock); 11702 ctl_set_internal_failure(ctsio, 11703 /*sks_valid*/ 0, 11704 /*retry_count*/ 0); 11705 ctl_done((union ctl_io *)ctsio); 11706 break; 11707 } 11708 return (retval); 11709} 11710 11711const struct ctl_cmd_entry * 11712ctl_get_cmd_entry(struct ctl_scsiio *ctsio, int *sa) 11713{ 11714 const struct ctl_cmd_entry *entry; 11715 int service_action; 11716 11717 entry = &ctl_cmd_table[ctsio->cdb[0]]; 11718 if (sa) 11719 *sa = ((entry->flags & CTL_CMD_FLAG_SA5) != 0); 11720 if (entry->flags & CTL_CMD_FLAG_SA5) { 11721 service_action = ctsio->cdb[1] & SERVICE_ACTION_MASK; 11722 entry = &((const struct ctl_cmd_entry *) 11723 entry->execute)[service_action]; 11724 } 11725 return (entry); 11726} 11727 11728const struct ctl_cmd_entry * 11729ctl_validate_command(struct ctl_scsiio *ctsio) 11730{ 11731 const struct ctl_cmd_entry *entry; 11732 int i, sa; 11733 uint8_t diff; 11734 11735 entry = ctl_get_cmd_entry(ctsio, &sa); 11736 if (entry->execute == NULL) { 11737 if (sa) 11738 ctl_set_invalid_field(ctsio, 11739 /*sks_valid*/ 1, 11740 /*command*/ 1, 11741 /*field*/ 1, 11742 /*bit_valid*/ 1, 11743 /*bit*/ 4); 11744 else 11745 ctl_set_invalid_opcode(ctsio); 11746 ctl_done((union ctl_io *)ctsio); 11747 return (NULL); 11748 } 11749 KASSERT(entry->length > 0, 11750 ("Not defined length for command 0x%02x/0x%02x", 11751 ctsio->cdb[0], ctsio->cdb[1])); 11752 for (i = 1; i < entry->length; i++) { 11753 diff = ctsio->cdb[i] & ~entry->usage[i - 1]; 11754 if (diff == 0) 11755 continue; 11756 ctl_set_invalid_field(ctsio, 11757 /*sks_valid*/ 1, 11758 /*command*/ 1, 11759 /*field*/ i, 11760 /*bit_valid*/ 1, 11761 /*bit*/ fls(diff) - 1); 11762 ctl_done((union ctl_io *)ctsio); 11763 return (NULL); 11764 } 11765 return (entry); 11766} 11767 11768static int 11769ctl_cmd_applicable(uint8_t lun_type, const struct ctl_cmd_entry *entry) 11770{ 11771 11772 switch (lun_type) { 11773 case T_DIRECT: 11774 if ((entry->flags & CTL_CMD_FLAG_OK_ON_DIRECT) == 0) 11775 return (0); 11776 break; 11777 case T_PROCESSOR: 11778 if ((entry->flags & CTL_CMD_FLAG_OK_ON_PROC) == 0) 11779 return (0); 11780 break; 11781 case T_CDROM: 11782 if ((entry->flags & CTL_CMD_FLAG_OK_ON_CDROM) == 0) 11783 return (0); 11784 break; 11785 default: 11786 return (0); 11787 } 11788 return (1); 11789} 11790 11791static int 11792ctl_scsiio(struct ctl_scsiio *ctsio) 11793{ 11794 int retval; 11795 const struct ctl_cmd_entry *entry; 11796 11797 retval = CTL_RETVAL_COMPLETE; 11798 11799 CTL_DEBUG_PRINT(("ctl_scsiio cdb[0]=%02X\n", ctsio->cdb[0])); 11800 11801 entry = ctl_get_cmd_entry(ctsio, NULL); 11802 11803 /* 11804 * If this I/O has been aborted, just send it straight to 11805 * ctl_done() without executing it. 11806 */ 11807 if (ctsio->io_hdr.flags & CTL_FLAG_ABORT) { 11808 ctl_done((union ctl_io *)ctsio); 11809 goto bailout; 11810 } 11811 11812 /* 11813 * All the checks should have been handled by ctl_scsiio_precheck(). 11814 * We should be clear now to just execute the I/O. 11815 */ 11816 retval = entry->execute(ctsio); 11817 11818bailout: 11819 return (retval); 11820} 11821 11822/* 11823 * Since we only implement one target right now, a bus reset simply resets 11824 * our single target. 11825 */ 11826static int 11827ctl_bus_reset(struct ctl_softc *softc, union ctl_io *io) 11828{ 11829 return(ctl_target_reset(softc, io, CTL_UA_BUS_RESET)); 11830} 11831 11832static int 11833ctl_target_reset(struct ctl_softc *softc, union ctl_io *io, 11834 ctl_ua_type ua_type) 11835{ 11836 struct ctl_port *port; 11837 struct ctl_lun *lun; 11838 int retval; 11839 11840 if (!(io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)) { 11841 union ctl_ha_msg msg_info; 11842 11843 msg_info.hdr.nexus = io->io_hdr.nexus; 11844 if (ua_type==CTL_UA_TARG_RESET) 11845 msg_info.task.task_action = CTL_TASK_TARGET_RESET; 11846 else 11847 msg_info.task.task_action = CTL_TASK_BUS_RESET; 11848 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 11849 msg_info.hdr.original_sc = NULL; 11850 msg_info.hdr.serializing_sc = NULL; 11851 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 11852 sizeof(msg_info.task), M_WAITOK); 11853 } 11854 retval = 0; 11855 11856 mtx_lock(&softc->ctl_lock); 11857 port = ctl_io_port(&io->io_hdr); 11858 STAILQ_FOREACH(lun, &softc->lun_list, links) { 11859 if (port != NULL && 11860 ctl_lun_map_to_port(port, lun->lun) == UINT32_MAX) 11861 continue; 11862 retval += ctl_do_lun_reset(lun, io, ua_type); 11863 } 11864 mtx_unlock(&softc->ctl_lock); 11865 io->taskio.task_status = CTL_TASK_FUNCTION_COMPLETE; 11866 return (retval); 11867} 11868 11869/* 11870 * The LUN should always be set. The I/O is optional, and is used to 11871 * distinguish between I/Os sent by this initiator, and by other 11872 * initiators. We set unit attention for initiators other than this one. 11873 * SAM-3 is vague on this point. It does say that a unit attention should 11874 * be established for other initiators when a LUN is reset (see section 11875 * 5.7.3), but it doesn't specifically say that the unit attention should 11876 * be established for this particular initiator when a LUN is reset. Here 11877 * is the relevant text, from SAM-3 rev 8: 11878 * 11879 * 5.7.2 When a SCSI initiator port aborts its own tasks 11880 * 11881 * When a SCSI initiator port causes its own task(s) to be aborted, no 11882 * notification that the task(s) have been aborted shall be returned to 11883 * the SCSI initiator port other than the completion response for the 11884 * command or task management function action that caused the task(s) to 11885 * be aborted and notification(s) associated with related effects of the 11886 * action (e.g., a reset unit attention condition). 11887 * 11888 * XXX KDM for now, we're setting unit attention for all initiators. 11889 */ 11890static int 11891ctl_do_lun_reset(struct ctl_lun *lun, union ctl_io *io, ctl_ua_type ua_type) 11892{ 11893 union ctl_io *xio; 11894#if 0 11895 uint32_t initidx; 11896#endif 11897 int i; 11898 11899 mtx_lock(&lun->lun_lock); 11900 /* 11901 * Run through the OOA queue and abort each I/O. 11902 */ 11903 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 11904 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 11905 xio->io_hdr.flags |= CTL_FLAG_ABORT | CTL_FLAG_ABORT_STATUS; 11906 } 11907 11908 /* 11909 * This version sets unit attention for every 11910 */ 11911#if 0 11912 initidx = ctl_get_initindex(&io->io_hdr.nexus); 11913 ctl_est_ua_all(lun, initidx, ua_type); 11914#else 11915 ctl_est_ua_all(lun, -1, ua_type); 11916#endif 11917 11918 /* 11919 * A reset (any kind, really) clears reservations established with 11920 * RESERVE/RELEASE. It does not clear reservations established 11921 * with PERSISTENT RESERVE OUT, but we don't support that at the 11922 * moment anyway. See SPC-2, section 5.6. SPC-3 doesn't address 11923 * reservations made with the RESERVE/RELEASE commands, because 11924 * those commands are obsolete in SPC-3. 11925 */ 11926 lun->flags &= ~CTL_LUN_RESERVED; 11927 11928#ifdef CTL_WITH_CA 11929 for (i = 0; i < CTL_MAX_INITIATORS; i++) 11930 ctl_clear_mask(lun->have_ca, i); 11931#endif 11932 lun->prevent_count = 0; 11933 for (i = 0; i < CTL_MAX_INITIATORS; i++) 11934 ctl_clear_mask(lun->prevent, i); 11935 mtx_unlock(&lun->lun_lock); 11936 11937 return (0); 11938} 11939 11940static int 11941ctl_lun_reset(struct ctl_softc *softc, union ctl_io *io) 11942{ 11943 struct ctl_lun *lun; 11944 uint32_t targ_lun; 11945 int retval; 11946 11947 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 11948 mtx_lock(&softc->ctl_lock); 11949 if (targ_lun >= CTL_MAX_LUNS || 11950 (lun = softc->ctl_luns[targ_lun]) == NULL) { 11951 mtx_unlock(&softc->ctl_lock); 11952 io->taskio.task_status = CTL_TASK_LUN_DOES_NOT_EXIST; 11953 return (1); 11954 } 11955 retval = ctl_do_lun_reset(lun, io, CTL_UA_LUN_RESET); 11956 mtx_unlock(&softc->ctl_lock); 11957 io->taskio.task_status = CTL_TASK_FUNCTION_COMPLETE; 11958 11959 if ((io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) == 0) { 11960 union ctl_ha_msg msg_info; 11961 11962 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 11963 msg_info.hdr.nexus = io->io_hdr.nexus; 11964 msg_info.task.task_action = CTL_TASK_LUN_RESET; 11965 msg_info.hdr.original_sc = NULL; 11966 msg_info.hdr.serializing_sc = NULL; 11967 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 11968 sizeof(msg_info.task), M_WAITOK); 11969 } 11970 return (retval); 11971} 11972 11973static void 11974ctl_abort_tasks_lun(struct ctl_lun *lun, uint32_t targ_port, uint32_t init_id, 11975 int other_sc) 11976{ 11977 union ctl_io *xio; 11978 11979 mtx_assert(&lun->lun_lock, MA_OWNED); 11980 11981 /* 11982 * Run through the OOA queue and attempt to find the given I/O. 11983 * The target port, initiator ID, tag type and tag number have to 11984 * match the values that we got from the initiator. If we have an 11985 * untagged command to abort, simply abort the first untagged command 11986 * we come to. We only allow one untagged command at a time of course. 11987 */ 11988 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 11989 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 11990 11991 if ((targ_port == UINT32_MAX || 11992 targ_port == xio->io_hdr.nexus.targ_port) && 11993 (init_id == UINT32_MAX || 11994 init_id == xio->io_hdr.nexus.initid)) { 11995 if (targ_port != xio->io_hdr.nexus.targ_port || 11996 init_id != xio->io_hdr.nexus.initid) 11997 xio->io_hdr.flags |= CTL_FLAG_ABORT_STATUS; 11998 xio->io_hdr.flags |= CTL_FLAG_ABORT; 11999 if (!other_sc && !(lun->flags & CTL_LUN_PRIMARY_SC)) { 12000 union ctl_ha_msg msg_info; 12001 12002 msg_info.hdr.nexus = xio->io_hdr.nexus; 12003 msg_info.task.task_action = CTL_TASK_ABORT_TASK; 12004 msg_info.task.tag_num = xio->scsiio.tag_num; 12005 msg_info.task.tag_type = xio->scsiio.tag_type; 12006 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 12007 msg_info.hdr.original_sc = NULL; 12008 msg_info.hdr.serializing_sc = NULL; 12009 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 12010 sizeof(msg_info.task), M_NOWAIT); 12011 } 12012 } 12013 } 12014} 12015 12016static int 12017ctl_abort_task_set(union ctl_io *io) 12018{ 12019 struct ctl_softc *softc = control_softc; 12020 struct ctl_lun *lun; 12021 uint32_t targ_lun; 12022 12023 /* 12024 * Look up the LUN. 12025 */ 12026 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12027 mtx_lock(&softc->ctl_lock); 12028 if (targ_lun >= CTL_MAX_LUNS || 12029 (lun = softc->ctl_luns[targ_lun]) == NULL) { 12030 mtx_unlock(&softc->ctl_lock); 12031 io->taskio.task_status = CTL_TASK_LUN_DOES_NOT_EXIST; 12032 return (1); 12033 } 12034 12035 mtx_lock(&lun->lun_lock); 12036 mtx_unlock(&softc->ctl_lock); 12037 if (io->taskio.task_action == CTL_TASK_ABORT_TASK_SET) { 12038 ctl_abort_tasks_lun(lun, io->io_hdr.nexus.targ_port, 12039 io->io_hdr.nexus.initid, 12040 (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) != 0); 12041 } else { /* CTL_TASK_CLEAR_TASK_SET */ 12042 ctl_abort_tasks_lun(lun, UINT32_MAX, UINT32_MAX, 12043 (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) != 0); 12044 } 12045 mtx_unlock(&lun->lun_lock); 12046 io->taskio.task_status = CTL_TASK_FUNCTION_COMPLETE; 12047 return (0); 12048} 12049 12050static int 12051ctl_i_t_nexus_reset(union ctl_io *io) 12052{ 12053 struct ctl_softc *softc = control_softc; 12054 struct ctl_lun *lun; 12055 uint32_t initidx; 12056 12057 if (!(io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)) { 12058 union ctl_ha_msg msg_info; 12059 12060 msg_info.hdr.nexus = io->io_hdr.nexus; 12061 msg_info.task.task_action = CTL_TASK_I_T_NEXUS_RESET; 12062 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 12063 msg_info.hdr.original_sc = NULL; 12064 msg_info.hdr.serializing_sc = NULL; 12065 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 12066 sizeof(msg_info.task), M_WAITOK); 12067 } 12068 12069 initidx = ctl_get_initindex(&io->io_hdr.nexus); 12070 mtx_lock(&softc->ctl_lock); 12071 STAILQ_FOREACH(lun, &softc->lun_list, links) { 12072 mtx_lock(&lun->lun_lock); 12073 ctl_abort_tasks_lun(lun, io->io_hdr.nexus.targ_port, 12074 io->io_hdr.nexus.initid, 1); 12075#ifdef CTL_WITH_CA 12076 ctl_clear_mask(lun->have_ca, initidx); 12077#endif 12078 if ((lun->flags & CTL_LUN_RESERVED) && (lun->res_idx == initidx)) 12079 lun->flags &= ~CTL_LUN_RESERVED; 12080 if (ctl_is_set(lun->prevent, initidx)) { 12081 ctl_clear_mask(lun->prevent, initidx); 12082 lun->prevent_count--; 12083 } 12084 ctl_est_ua(lun, initidx, CTL_UA_I_T_NEXUS_LOSS); 12085 mtx_unlock(&lun->lun_lock); 12086 } 12087 mtx_unlock(&softc->ctl_lock); 12088 io->taskio.task_status = CTL_TASK_FUNCTION_COMPLETE; 12089 return (0); 12090} 12091 12092static int 12093ctl_abort_task(union ctl_io *io) 12094{ 12095 union ctl_io *xio; 12096 struct ctl_lun *lun; 12097 struct ctl_softc *softc; 12098#if 0 12099 struct sbuf sb; 12100 char printbuf[128]; 12101#endif 12102 int found; 12103 uint32_t targ_lun; 12104 12105 softc = control_softc; 12106 found = 0; 12107 12108 /* 12109 * Look up the LUN. 12110 */ 12111 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12112 mtx_lock(&softc->ctl_lock); 12113 if (targ_lun >= CTL_MAX_LUNS || 12114 (lun = softc->ctl_luns[targ_lun]) == NULL) { 12115 mtx_unlock(&softc->ctl_lock); 12116 io->taskio.task_status = CTL_TASK_LUN_DOES_NOT_EXIST; 12117 return (1); 12118 } 12119 12120#if 0 12121 printf("ctl_abort_task: called for lun %lld, tag %d type %d\n", 12122 lun->lun, io->taskio.tag_num, io->taskio.tag_type); 12123#endif 12124 12125 mtx_lock(&lun->lun_lock); 12126 mtx_unlock(&softc->ctl_lock); 12127 /* 12128 * Run through the OOA queue and attempt to find the given I/O. 12129 * The target port, initiator ID, tag type and tag number have to 12130 * match the values that we got from the initiator. If we have an 12131 * untagged command to abort, simply abort the first untagged command 12132 * we come to. We only allow one untagged command at a time of course. 12133 */ 12134 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 12135 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 12136#if 0 12137 sbuf_new(&sb, printbuf, sizeof(printbuf), SBUF_FIXEDLEN); 12138 12139 sbuf_printf(&sb, "LUN %lld tag %d type %d%s%s%s%s: ", 12140 lun->lun, xio->scsiio.tag_num, 12141 xio->scsiio.tag_type, 12142 (xio->io_hdr.blocked_links.tqe_prev 12143 == NULL) ? "" : " BLOCKED", 12144 (xio->io_hdr.flags & 12145 CTL_FLAG_DMA_INPROG) ? " DMA" : "", 12146 (xio->io_hdr.flags & 12147 CTL_FLAG_ABORT) ? " ABORT" : "", 12148 (xio->io_hdr.flags & 12149 CTL_FLAG_IS_WAS_ON_RTR ? " RTR" : "")); 12150 ctl_scsi_command_string(&xio->scsiio, NULL, &sb); 12151 sbuf_finish(&sb); 12152 printf("%s\n", sbuf_data(&sb)); 12153#endif 12154 12155 if ((xio->io_hdr.nexus.targ_port != io->io_hdr.nexus.targ_port) 12156 || (xio->io_hdr.nexus.initid != io->io_hdr.nexus.initid) 12157 || (xio->io_hdr.flags & CTL_FLAG_ABORT)) 12158 continue; 12159 12160 /* 12161 * If the abort says that the task is untagged, the 12162 * task in the queue must be untagged. Otherwise, 12163 * we just check to see whether the tag numbers 12164 * match. This is because the QLogic firmware 12165 * doesn't pass back the tag type in an abort 12166 * request. 12167 */ 12168#if 0 12169 if (((xio->scsiio.tag_type == CTL_TAG_UNTAGGED) 12170 && (io->taskio.tag_type == CTL_TAG_UNTAGGED)) 12171 || (xio->scsiio.tag_num == io->taskio.tag_num)) 12172#endif 12173 /* 12174 * XXX KDM we've got problems with FC, because it 12175 * doesn't send down a tag type with aborts. So we 12176 * can only really go by the tag number... 12177 * This may cause problems with parallel SCSI. 12178 * Need to figure that out!! 12179 */ 12180 if (xio->scsiio.tag_num == io->taskio.tag_num) { 12181 xio->io_hdr.flags |= CTL_FLAG_ABORT; 12182 found = 1; 12183 if ((io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) == 0 && 12184 !(lun->flags & CTL_LUN_PRIMARY_SC)) { 12185 union ctl_ha_msg msg_info; 12186 12187 msg_info.hdr.nexus = io->io_hdr.nexus; 12188 msg_info.task.task_action = CTL_TASK_ABORT_TASK; 12189 msg_info.task.tag_num = io->taskio.tag_num; 12190 msg_info.task.tag_type = io->taskio.tag_type; 12191 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 12192 msg_info.hdr.original_sc = NULL; 12193 msg_info.hdr.serializing_sc = NULL; 12194#if 0 12195 printf("Sent Abort to other side\n"); 12196#endif 12197 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 12198 sizeof(msg_info.task), M_NOWAIT); 12199 } 12200#if 0 12201 printf("ctl_abort_task: found I/O to abort\n"); 12202#endif 12203 } 12204 } 12205 mtx_unlock(&lun->lun_lock); 12206 12207 if (found == 0) { 12208 /* 12209 * This isn't really an error. It's entirely possible for 12210 * the abort and command completion to cross on the wire. 12211 * This is more of an informative/diagnostic error. 12212 */ 12213#if 0 12214 printf("ctl_abort_task: ABORT sent for nonexistent I/O: " 12215 "%u:%u:%u tag %d type %d\n", 12216 io->io_hdr.nexus.initid, 12217 io->io_hdr.nexus.targ_port, 12218 io->io_hdr.nexus.targ_lun, io->taskio.tag_num, 12219 io->taskio.tag_type); 12220#endif 12221 } 12222 io->taskio.task_status = CTL_TASK_FUNCTION_COMPLETE; 12223 return (0); 12224} 12225 12226static int 12227ctl_query_task(union ctl_io *io, int task_set) 12228{ 12229 union ctl_io *xio; 12230 struct ctl_lun *lun; 12231 struct ctl_softc *softc; 12232 int found = 0; 12233 uint32_t targ_lun; 12234 12235 softc = control_softc; 12236 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12237 mtx_lock(&softc->ctl_lock); 12238 if (targ_lun >= CTL_MAX_LUNS || 12239 (lun = softc->ctl_luns[targ_lun]) == NULL) { 12240 mtx_unlock(&softc->ctl_lock); 12241 io->taskio.task_status = CTL_TASK_LUN_DOES_NOT_EXIST; 12242 return (1); 12243 } 12244 mtx_lock(&lun->lun_lock); 12245 mtx_unlock(&softc->ctl_lock); 12246 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 12247 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 12248 12249 if ((xio->io_hdr.nexus.targ_port != io->io_hdr.nexus.targ_port) 12250 || (xio->io_hdr.nexus.initid != io->io_hdr.nexus.initid) 12251 || (xio->io_hdr.flags & CTL_FLAG_ABORT)) 12252 continue; 12253 12254 if (task_set || xio->scsiio.tag_num == io->taskio.tag_num) { 12255 found = 1; 12256 break; 12257 } 12258 } 12259 mtx_unlock(&lun->lun_lock); 12260 if (found) 12261 io->taskio.task_status = CTL_TASK_FUNCTION_SUCCEEDED; 12262 else 12263 io->taskio.task_status = CTL_TASK_FUNCTION_COMPLETE; 12264 return (0); 12265} 12266 12267static int 12268ctl_query_async_event(union ctl_io *io) 12269{ 12270 struct ctl_lun *lun; 12271 struct ctl_softc *softc; 12272 ctl_ua_type ua; 12273 uint32_t targ_lun, initidx; 12274 12275 softc = control_softc; 12276 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12277 mtx_lock(&softc->ctl_lock); 12278 if (targ_lun >= CTL_MAX_LUNS || 12279 (lun = softc->ctl_luns[targ_lun]) == NULL) { 12280 mtx_unlock(&softc->ctl_lock); 12281 io->taskio.task_status = CTL_TASK_LUN_DOES_NOT_EXIST; 12282 return (1); 12283 } 12284 mtx_lock(&lun->lun_lock); 12285 mtx_unlock(&softc->ctl_lock); 12286 initidx = ctl_get_initindex(&io->io_hdr.nexus); 12287 ua = ctl_build_qae(lun, initidx, io->taskio.task_resp); 12288 mtx_unlock(&lun->lun_lock); 12289 if (ua != CTL_UA_NONE) 12290 io->taskio.task_status = CTL_TASK_FUNCTION_SUCCEEDED; 12291 else 12292 io->taskio.task_status = CTL_TASK_FUNCTION_COMPLETE; 12293 return (0); 12294} 12295 12296static void 12297ctl_run_task(union ctl_io *io) 12298{ 12299 struct ctl_softc *softc = control_softc; 12300 int retval = 1; 12301 12302 CTL_DEBUG_PRINT(("ctl_run_task\n")); 12303 KASSERT(io->io_hdr.io_type == CTL_IO_TASK, 12304 ("ctl_run_task: Unextected io_type %d\n", io->io_hdr.io_type)); 12305 io->taskio.task_status = CTL_TASK_FUNCTION_NOT_SUPPORTED; 12306 bzero(io->taskio.task_resp, sizeof(io->taskio.task_resp)); 12307 switch (io->taskio.task_action) { 12308 case CTL_TASK_ABORT_TASK: 12309 retval = ctl_abort_task(io); 12310 break; 12311 case CTL_TASK_ABORT_TASK_SET: 12312 case CTL_TASK_CLEAR_TASK_SET: 12313 retval = ctl_abort_task_set(io); 12314 break; 12315 case CTL_TASK_CLEAR_ACA: 12316 break; 12317 case CTL_TASK_I_T_NEXUS_RESET: 12318 retval = ctl_i_t_nexus_reset(io); 12319 break; 12320 case CTL_TASK_LUN_RESET: 12321 retval = ctl_lun_reset(softc, io); 12322 break; 12323 case CTL_TASK_TARGET_RESET: 12324 retval = ctl_target_reset(softc, io, CTL_UA_TARG_RESET); 12325 break; 12326 case CTL_TASK_BUS_RESET: 12327 retval = ctl_bus_reset(softc, io); 12328 break; 12329 case CTL_TASK_PORT_LOGIN: 12330 break; 12331 case CTL_TASK_PORT_LOGOUT: 12332 break; 12333 case CTL_TASK_QUERY_TASK: 12334 retval = ctl_query_task(io, 0); 12335 break; 12336 case CTL_TASK_QUERY_TASK_SET: 12337 retval = ctl_query_task(io, 1); 12338 break; 12339 case CTL_TASK_QUERY_ASYNC_EVENT: 12340 retval = ctl_query_async_event(io); 12341 break; 12342 default: 12343 printf("%s: got unknown task management event %d\n", 12344 __func__, io->taskio.task_action); 12345 break; 12346 } 12347 if (retval == 0) 12348 io->io_hdr.status = CTL_SUCCESS; 12349 else 12350 io->io_hdr.status = CTL_ERROR; 12351 ctl_done(io); 12352} 12353 12354/* 12355 * For HA operation. Handle commands that come in from the other 12356 * controller. 12357 */ 12358static void 12359ctl_handle_isc(union ctl_io *io) 12360{ 12361 struct ctl_softc *softc = control_softc; 12362 struct ctl_lun *lun; 12363 const struct ctl_cmd_entry *entry; 12364 uint32_t targ_lun; 12365 12366 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12367 switch (io->io_hdr.msg_type) { 12368 case CTL_MSG_SERIALIZE: 12369 ctl_serialize_other_sc_cmd(&io->scsiio); 12370 break; 12371 case CTL_MSG_R2R: /* Only used in SER_ONLY mode. */ 12372 entry = ctl_get_cmd_entry(&io->scsiio, NULL); 12373 if (targ_lun >= CTL_MAX_LUNS || 12374 (lun = softc->ctl_luns[targ_lun]) == NULL) { 12375 ctl_done(io); 12376 break; 12377 } 12378 mtx_lock(&lun->lun_lock); 12379 if (ctl_scsiio_lun_check(lun, entry, &io->scsiio) != 0) { 12380 mtx_unlock(&lun->lun_lock); 12381 ctl_done(io); 12382 break; 12383 } 12384 io->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 12385 mtx_unlock(&lun->lun_lock); 12386 ctl_enqueue_rtr(io); 12387 break; 12388 case CTL_MSG_FINISH_IO: 12389 if (softc->ha_mode == CTL_HA_MODE_XFER) { 12390 ctl_done(io); 12391 break; 12392 } 12393 if (targ_lun >= CTL_MAX_LUNS || 12394 (lun = softc->ctl_luns[targ_lun]) == NULL) { 12395 ctl_free_io(io); 12396 break; 12397 } 12398 mtx_lock(&lun->lun_lock); 12399 TAILQ_REMOVE(&lun->ooa_queue, &io->io_hdr, ooa_links); 12400 ctl_check_blocked(lun); 12401 mtx_unlock(&lun->lun_lock); 12402 ctl_free_io(io); 12403 break; 12404 case CTL_MSG_PERS_ACTION: 12405 ctl_hndl_per_res_out_on_other_sc( 12406 (union ctl_ha_msg *)&io->presio.pr_msg); 12407 ctl_free_io(io); 12408 break; 12409 case CTL_MSG_BAD_JUJU: 12410 ctl_done(io); 12411 break; 12412 case CTL_MSG_DATAMOVE: /* Only used in XFER mode */ 12413 ctl_datamove_remote(io); 12414 break; 12415 case CTL_MSG_DATAMOVE_DONE: /* Only used in XFER mode */ 12416 io->scsiio.be_move_done(io); 12417 break; 12418 case CTL_MSG_FAILOVER: 12419 ctl_failover_lun(io); 12420 ctl_free_io(io); 12421 break; 12422 default: 12423 printf("%s: Invalid message type %d\n", 12424 __func__, io->io_hdr.msg_type); 12425 ctl_free_io(io); 12426 break; 12427 } 12428 12429} 12430 12431 12432/* 12433 * Returns the match type in the case of a match, or CTL_LUN_PAT_NONE if 12434 * there is no match. 12435 */ 12436static ctl_lun_error_pattern 12437ctl_cmd_pattern_match(struct ctl_scsiio *ctsio, struct ctl_error_desc *desc) 12438{ 12439 const struct ctl_cmd_entry *entry; 12440 ctl_lun_error_pattern filtered_pattern, pattern; 12441 12442 pattern = desc->error_pattern; 12443 12444 /* 12445 * XXX KDM we need more data passed into this function to match a 12446 * custom pattern, and we actually need to implement custom pattern 12447 * matching. 12448 */ 12449 if (pattern & CTL_LUN_PAT_CMD) 12450 return (CTL_LUN_PAT_CMD); 12451 12452 if ((pattern & CTL_LUN_PAT_MASK) == CTL_LUN_PAT_ANY) 12453 return (CTL_LUN_PAT_ANY); 12454 12455 entry = ctl_get_cmd_entry(ctsio, NULL); 12456 12457 filtered_pattern = entry->pattern & pattern; 12458 12459 /* 12460 * If the user requested specific flags in the pattern (e.g. 12461 * CTL_LUN_PAT_RANGE), make sure the command supports all of those 12462 * flags. 12463 * 12464 * If the user did not specify any flags, it doesn't matter whether 12465 * or not the command supports the flags. 12466 */ 12467 if ((filtered_pattern & ~CTL_LUN_PAT_MASK) != 12468 (pattern & ~CTL_LUN_PAT_MASK)) 12469 return (CTL_LUN_PAT_NONE); 12470 12471 /* 12472 * If the user asked for a range check, see if the requested LBA 12473 * range overlaps with this command's LBA range. 12474 */ 12475 if (filtered_pattern & CTL_LUN_PAT_RANGE) { 12476 uint64_t lba1; 12477 uint64_t len1; 12478 ctl_action action; 12479 int retval; 12480 12481 retval = ctl_get_lba_len((union ctl_io *)ctsio, &lba1, &len1); 12482 if (retval != 0) 12483 return (CTL_LUN_PAT_NONE); 12484 12485 action = ctl_extent_check_lba(lba1, len1, desc->lba_range.lba, 12486 desc->lba_range.len, FALSE); 12487 /* 12488 * A "pass" means that the LBA ranges don't overlap, so 12489 * this doesn't match the user's range criteria. 12490 */ 12491 if (action == CTL_ACTION_PASS) 12492 return (CTL_LUN_PAT_NONE); 12493 } 12494 12495 return (filtered_pattern); 12496} 12497 12498static void 12499ctl_inject_error(struct ctl_lun *lun, union ctl_io *io) 12500{ 12501 struct ctl_error_desc *desc, *desc2; 12502 12503 mtx_assert(&lun->lun_lock, MA_OWNED); 12504 12505 STAILQ_FOREACH_SAFE(desc, &lun->error_list, links, desc2) { 12506 ctl_lun_error_pattern pattern; 12507 /* 12508 * Check to see whether this particular command matches 12509 * the pattern in the descriptor. 12510 */ 12511 pattern = ctl_cmd_pattern_match(&io->scsiio, desc); 12512 if ((pattern & CTL_LUN_PAT_MASK) == CTL_LUN_PAT_NONE) 12513 continue; 12514 12515 switch (desc->lun_error & CTL_LUN_INJ_TYPE) { 12516 case CTL_LUN_INJ_ABORTED: 12517 ctl_set_aborted(&io->scsiio); 12518 break; 12519 case CTL_LUN_INJ_MEDIUM_ERR: 12520 ctl_set_medium_error(&io->scsiio, 12521 (io->io_hdr.flags & CTL_FLAG_DATA_MASK) != 12522 CTL_FLAG_DATA_OUT); 12523 break; 12524 case CTL_LUN_INJ_UA: 12525 /* 29h/00h POWER ON, RESET, OR BUS DEVICE RESET 12526 * OCCURRED */ 12527 ctl_set_ua(&io->scsiio, 0x29, 0x00); 12528 break; 12529 case CTL_LUN_INJ_CUSTOM: 12530 /* 12531 * We're assuming the user knows what he is doing. 12532 * Just copy the sense information without doing 12533 * checks. 12534 */ 12535 bcopy(&desc->custom_sense, &io->scsiio.sense_data, 12536 MIN(sizeof(desc->custom_sense), 12537 sizeof(io->scsiio.sense_data))); 12538 io->scsiio.scsi_status = SCSI_STATUS_CHECK_COND; 12539 io->scsiio.sense_len = SSD_FULL_SIZE; 12540 io->io_hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 12541 break; 12542 case CTL_LUN_INJ_NONE: 12543 default: 12544 /* 12545 * If this is an error injection type we don't know 12546 * about, clear the continuous flag (if it is set) 12547 * so it will get deleted below. 12548 */ 12549 desc->lun_error &= ~CTL_LUN_INJ_CONTINUOUS; 12550 break; 12551 } 12552 /* 12553 * By default, each error injection action is a one-shot 12554 */ 12555 if (desc->lun_error & CTL_LUN_INJ_CONTINUOUS) 12556 continue; 12557 12558 STAILQ_REMOVE(&lun->error_list, desc, ctl_error_desc, links); 12559 12560 free(desc, M_CTL); 12561 } 12562} 12563 12564#ifdef CTL_IO_DELAY 12565static void 12566ctl_datamove_timer_wakeup(void *arg) 12567{ 12568 union ctl_io *io; 12569 12570 io = (union ctl_io *)arg; 12571 12572 ctl_datamove(io); 12573} 12574#endif /* CTL_IO_DELAY */ 12575 12576void 12577ctl_datamove(union ctl_io *io) 12578{ 12579 struct ctl_lun *lun; 12580 void (*fe_datamove)(union ctl_io *io); 12581 12582 mtx_assert(&control_softc->ctl_lock, MA_NOTOWNED); 12583 12584 CTL_DEBUG_PRINT(("ctl_datamove\n")); 12585 12586 lun = (struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 12587#ifdef CTL_TIME_IO 12588 if ((time_uptime - io->io_hdr.start_time) > ctl_time_io_secs) { 12589 char str[256]; 12590 char path_str[64]; 12591 struct sbuf sb; 12592 12593 ctl_scsi_path_string(io, path_str, sizeof(path_str)); 12594 sbuf_new(&sb, str, sizeof(str), SBUF_FIXEDLEN); 12595 12596 sbuf_cat(&sb, path_str); 12597 switch (io->io_hdr.io_type) { 12598 case CTL_IO_SCSI: 12599 ctl_scsi_command_string(&io->scsiio, NULL, &sb); 12600 sbuf_printf(&sb, "\n"); 12601 sbuf_cat(&sb, path_str); 12602 sbuf_printf(&sb, "Tag: 0x%04x, type %d\n", 12603 io->scsiio.tag_num, io->scsiio.tag_type); 12604 break; 12605 case CTL_IO_TASK: 12606 sbuf_printf(&sb, "Task I/O type: %d, Tag: 0x%04x, " 12607 "Tag Type: %d\n", io->taskio.task_action, 12608 io->taskio.tag_num, io->taskio.tag_type); 12609 break; 12610 default: 12611 panic("%s: Invalid CTL I/O type %d\n", 12612 __func__, io->io_hdr.io_type); 12613 } 12614 sbuf_cat(&sb, path_str); 12615 sbuf_printf(&sb, "ctl_datamove: %jd seconds\n", 12616 (intmax_t)time_uptime - io->io_hdr.start_time); 12617 sbuf_finish(&sb); 12618 printf("%s", sbuf_data(&sb)); 12619 } 12620#endif /* CTL_TIME_IO */ 12621 12622#ifdef CTL_IO_DELAY 12623 if (io->io_hdr.flags & CTL_FLAG_DELAY_DONE) { 12624 io->io_hdr.flags &= ~CTL_FLAG_DELAY_DONE; 12625 } else { 12626 if ((lun != NULL) 12627 && (lun->delay_info.datamove_delay > 0)) { 12628 12629 callout_init(&io->io_hdr.delay_callout, /*mpsafe*/ 1); 12630 io->io_hdr.flags |= CTL_FLAG_DELAY_DONE; 12631 callout_reset(&io->io_hdr.delay_callout, 12632 lun->delay_info.datamove_delay * hz, 12633 ctl_datamove_timer_wakeup, io); 12634 if (lun->delay_info.datamove_type == 12635 CTL_DELAY_TYPE_ONESHOT) 12636 lun->delay_info.datamove_delay = 0; 12637 return; 12638 } 12639 } 12640#endif 12641 12642 /* 12643 * This command has been aborted. Set the port status, so we fail 12644 * the data move. 12645 */ 12646 if (io->io_hdr.flags & CTL_FLAG_ABORT) { 12647 printf("ctl_datamove: tag 0x%04x on (%u:%u:%u) aborted\n", 12648 io->scsiio.tag_num, io->io_hdr.nexus.initid, 12649 io->io_hdr.nexus.targ_port, 12650 io->io_hdr.nexus.targ_lun); 12651 io->io_hdr.port_status = 31337; 12652 /* 12653 * Note that the backend, in this case, will get the 12654 * callback in its context. In other cases it may get 12655 * called in the frontend's interrupt thread context. 12656 */ 12657 io->scsiio.be_move_done(io); 12658 return; 12659 } 12660 12661 /* Don't confuse frontend with zero length data move. */ 12662 if (io->scsiio.kern_data_len == 0) { 12663 io->scsiio.be_move_done(io); 12664 return; 12665 } 12666 12667 fe_datamove = ctl_io_port(&io->io_hdr)->fe_datamove; 12668 fe_datamove(io); 12669} 12670 12671static void 12672ctl_send_datamove_done(union ctl_io *io, int have_lock) 12673{ 12674 union ctl_ha_msg msg; 12675#ifdef CTL_TIME_IO 12676 struct bintime cur_bt; 12677#endif 12678 12679 memset(&msg, 0, sizeof(msg)); 12680 msg.hdr.msg_type = CTL_MSG_DATAMOVE_DONE; 12681 msg.hdr.original_sc = io; 12682 msg.hdr.serializing_sc = io->io_hdr.serializing_sc; 12683 msg.hdr.nexus = io->io_hdr.nexus; 12684 msg.hdr.status = io->io_hdr.status; 12685 msg.scsi.tag_num = io->scsiio.tag_num; 12686 msg.scsi.tag_type = io->scsiio.tag_type; 12687 msg.scsi.scsi_status = io->scsiio.scsi_status; 12688 memcpy(&msg.scsi.sense_data, &io->scsiio.sense_data, 12689 io->scsiio.sense_len); 12690 msg.scsi.sense_len = io->scsiio.sense_len; 12691 msg.scsi.sense_residual = io->scsiio.sense_residual; 12692 msg.scsi.fetd_status = io->io_hdr.port_status; 12693 msg.scsi.residual = io->scsiio.residual; 12694 io->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 12695 if (io->io_hdr.flags & CTL_FLAG_FAILOVER) { 12696 ctl_failover_io(io, /*have_lock*/ have_lock); 12697 return; 12698 } 12699 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, 12700 sizeof(msg.scsi) - sizeof(msg.scsi.sense_data) + 12701 msg.scsi.sense_len, M_WAITOK); 12702 12703#ifdef CTL_TIME_IO 12704 getbinuptime(&cur_bt); 12705 bintime_sub(&cur_bt, &io->io_hdr.dma_start_bt); 12706 bintime_add(&io->io_hdr.dma_bt, &cur_bt); 12707#endif 12708 io->io_hdr.num_dmas++; 12709} 12710 12711/* 12712 * The DMA to the remote side is done, now we need to tell the other side 12713 * we're done so it can continue with its data movement. 12714 */ 12715static void 12716ctl_datamove_remote_write_cb(struct ctl_ha_dt_req *rq) 12717{ 12718 union ctl_io *io; 12719 uint32_t i; 12720 12721 io = rq->context; 12722 12723 if (rq->ret != CTL_HA_STATUS_SUCCESS) { 12724 printf("%s: ISC DMA write failed with error %d", __func__, 12725 rq->ret); 12726 ctl_set_internal_failure(&io->scsiio, 12727 /*sks_valid*/ 1, 12728 /*retry_count*/ rq->ret); 12729 } 12730 12731 ctl_dt_req_free(rq); 12732 12733 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 12734 free(io->io_hdr.local_sglist[i].addr, M_CTL); 12735 free(io->io_hdr.remote_sglist, M_CTL); 12736 io->io_hdr.remote_sglist = NULL; 12737 io->io_hdr.local_sglist = NULL; 12738 12739 /* 12740 * The data is in local and remote memory, so now we need to send 12741 * status (good or back) back to the other side. 12742 */ 12743 ctl_send_datamove_done(io, /*have_lock*/ 0); 12744} 12745 12746/* 12747 * We've moved the data from the host/controller into local memory. Now we 12748 * need to push it over to the remote controller's memory. 12749 */ 12750static int 12751ctl_datamove_remote_dm_write_cb(union ctl_io *io) 12752{ 12753 int retval; 12754 12755 retval = ctl_datamove_remote_xfer(io, CTL_HA_DT_CMD_WRITE, 12756 ctl_datamove_remote_write_cb); 12757 return (retval); 12758} 12759 12760static void 12761ctl_datamove_remote_write(union ctl_io *io) 12762{ 12763 int retval; 12764 void (*fe_datamove)(union ctl_io *io); 12765 12766 /* 12767 * - Get the data from the host/HBA into local memory. 12768 * - DMA memory from the local controller to the remote controller. 12769 * - Send status back to the remote controller. 12770 */ 12771 12772 retval = ctl_datamove_remote_sgl_setup(io); 12773 if (retval != 0) 12774 return; 12775 12776 /* Switch the pointer over so the FETD knows what to do */ 12777 io->scsiio.kern_data_ptr = (uint8_t *)io->io_hdr.local_sglist; 12778 12779 /* 12780 * Use a custom move done callback, since we need to send completion 12781 * back to the other controller, not to the backend on this side. 12782 */ 12783 io->scsiio.be_move_done = ctl_datamove_remote_dm_write_cb; 12784 12785 fe_datamove = ctl_io_port(&io->io_hdr)->fe_datamove; 12786 fe_datamove(io); 12787} 12788 12789static int 12790ctl_datamove_remote_dm_read_cb(union ctl_io *io) 12791{ 12792#if 0 12793 char str[256]; 12794 char path_str[64]; 12795 struct sbuf sb; 12796#endif 12797 uint32_t i; 12798 12799 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 12800 free(io->io_hdr.local_sglist[i].addr, M_CTL); 12801 free(io->io_hdr.remote_sglist, M_CTL); 12802 io->io_hdr.remote_sglist = NULL; 12803 io->io_hdr.local_sglist = NULL; 12804 12805#if 0 12806 scsi_path_string(io, path_str, sizeof(path_str)); 12807 sbuf_new(&sb, str, sizeof(str), SBUF_FIXEDLEN); 12808 sbuf_cat(&sb, path_str); 12809 scsi_command_string(&io->scsiio, NULL, &sb); 12810 sbuf_printf(&sb, "\n"); 12811 sbuf_cat(&sb, path_str); 12812 sbuf_printf(&sb, "Tag: 0x%04x, type %d\n", 12813 io->scsiio.tag_num, io->scsiio.tag_type); 12814 sbuf_cat(&sb, path_str); 12815 sbuf_printf(&sb, "%s: flags %#x, status %#x\n", __func__, 12816 io->io_hdr.flags, io->io_hdr.status); 12817 sbuf_finish(&sb); 12818 printk("%s", sbuf_data(&sb)); 12819#endif 12820 12821 12822 /* 12823 * The read is done, now we need to send status (good or bad) back 12824 * to the other side. 12825 */ 12826 ctl_send_datamove_done(io, /*have_lock*/ 0); 12827 12828 return (0); 12829} 12830 12831static void 12832ctl_datamove_remote_read_cb(struct ctl_ha_dt_req *rq) 12833{ 12834 union ctl_io *io; 12835 void (*fe_datamove)(union ctl_io *io); 12836 12837 io = rq->context; 12838 12839 if (rq->ret != CTL_HA_STATUS_SUCCESS) { 12840 printf("%s: ISC DMA read failed with error %d\n", __func__, 12841 rq->ret); 12842 ctl_set_internal_failure(&io->scsiio, 12843 /*sks_valid*/ 1, 12844 /*retry_count*/ rq->ret); 12845 } 12846 12847 ctl_dt_req_free(rq); 12848 12849 /* Switch the pointer over so the FETD knows what to do */ 12850 io->scsiio.kern_data_ptr = (uint8_t *)io->io_hdr.local_sglist; 12851 12852 /* 12853 * Use a custom move done callback, since we need to send completion 12854 * back to the other controller, not to the backend on this side. 12855 */ 12856 io->scsiio.be_move_done = ctl_datamove_remote_dm_read_cb; 12857 12858 /* XXX KDM add checks like the ones in ctl_datamove? */ 12859 12860 fe_datamove = ctl_io_port(&io->io_hdr)->fe_datamove; 12861 fe_datamove(io); 12862} 12863 12864static int 12865ctl_datamove_remote_sgl_setup(union ctl_io *io) 12866{ 12867 struct ctl_sg_entry *local_sglist; 12868 uint32_t len_to_go; 12869 int retval; 12870 int i; 12871 12872 retval = 0; 12873 local_sglist = io->io_hdr.local_sglist; 12874 len_to_go = io->scsiio.kern_data_len; 12875 12876 /* 12877 * The difficult thing here is that the size of the various 12878 * S/G segments may be different than the size from the 12879 * remote controller. That'll make it harder when DMAing 12880 * the data back to the other side. 12881 */ 12882 for (i = 0; len_to_go > 0; i++) { 12883 local_sglist[i].len = MIN(len_to_go, CTL_HA_DATAMOVE_SEGMENT); 12884 local_sglist[i].addr = 12885 malloc(local_sglist[i].len, M_CTL, M_WAITOK); 12886 12887 len_to_go -= local_sglist[i].len; 12888 } 12889 /* 12890 * Reset the number of S/G entries accordingly. The original 12891 * number of S/G entries is available in rem_sg_entries. 12892 */ 12893 io->scsiio.kern_sg_entries = i; 12894 12895#if 0 12896 printf("%s: kern_sg_entries = %d\n", __func__, 12897 io->scsiio.kern_sg_entries); 12898 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 12899 printf("%s: sg[%d] = %p, %lu\n", __func__, i, 12900 local_sglist[i].addr, local_sglist[i].len); 12901#endif 12902 12903 return (retval); 12904} 12905 12906static int 12907ctl_datamove_remote_xfer(union ctl_io *io, unsigned command, 12908 ctl_ha_dt_cb callback) 12909{ 12910 struct ctl_ha_dt_req *rq; 12911 struct ctl_sg_entry *remote_sglist, *local_sglist; 12912 uint32_t local_used, remote_used, total_used; 12913 int i, j, isc_ret; 12914 12915 rq = ctl_dt_req_alloc(); 12916 12917 /* 12918 * If we failed to allocate the request, and if the DMA didn't fail 12919 * anyway, set busy status. This is just a resource allocation 12920 * failure. 12921 */ 12922 if ((rq == NULL) 12923 && ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE && 12924 (io->io_hdr.status & CTL_STATUS_MASK) != CTL_SUCCESS)) 12925 ctl_set_busy(&io->scsiio); 12926 12927 if ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE && 12928 (io->io_hdr.status & CTL_STATUS_MASK) != CTL_SUCCESS) { 12929 12930 if (rq != NULL) 12931 ctl_dt_req_free(rq); 12932 12933 /* 12934 * The data move failed. We need to return status back 12935 * to the other controller. No point in trying to DMA 12936 * data to the remote controller. 12937 */ 12938 12939 ctl_send_datamove_done(io, /*have_lock*/ 0); 12940 12941 return (1); 12942 } 12943 12944 local_sglist = io->io_hdr.local_sglist; 12945 remote_sglist = io->io_hdr.remote_sglist; 12946 local_used = 0; 12947 remote_used = 0; 12948 total_used = 0; 12949 12950 /* 12951 * Pull/push the data over the wire from/to the other controller. 12952 * This takes into account the possibility that the local and 12953 * remote sglists may not be identical in terms of the size of 12954 * the elements and the number of elements. 12955 * 12956 * One fundamental assumption here is that the length allocated for 12957 * both the local and remote sglists is identical. Otherwise, we've 12958 * essentially got a coding error of some sort. 12959 */ 12960 isc_ret = CTL_HA_STATUS_SUCCESS; 12961 for (i = 0, j = 0; total_used < io->scsiio.kern_data_len; ) { 12962 uint32_t cur_len; 12963 uint8_t *tmp_ptr; 12964 12965 rq->command = command; 12966 rq->context = io; 12967 12968 /* 12969 * Both pointers should be aligned. But it is possible 12970 * that the allocation length is not. They should both 12971 * also have enough slack left over at the end, though, 12972 * to round up to the next 8 byte boundary. 12973 */ 12974 cur_len = MIN(local_sglist[i].len - local_used, 12975 remote_sglist[j].len - remote_used); 12976 rq->size = cur_len; 12977 12978 tmp_ptr = (uint8_t *)local_sglist[i].addr; 12979 tmp_ptr += local_used; 12980 12981#if 0 12982 /* Use physical addresses when talking to ISC hardware */ 12983 if ((io->io_hdr.flags & CTL_FLAG_BUS_ADDR) == 0) { 12984 /* XXX KDM use busdma */ 12985 rq->local = vtophys(tmp_ptr); 12986 } else 12987 rq->local = tmp_ptr; 12988#else 12989 KASSERT((io->io_hdr.flags & CTL_FLAG_BUS_ADDR) == 0, 12990 ("HA does not support BUS_ADDR")); 12991 rq->local = tmp_ptr; 12992#endif 12993 12994 tmp_ptr = (uint8_t *)remote_sglist[j].addr; 12995 tmp_ptr += remote_used; 12996 rq->remote = tmp_ptr; 12997 12998 rq->callback = NULL; 12999 13000 local_used += cur_len; 13001 if (local_used >= local_sglist[i].len) { 13002 i++; 13003 local_used = 0; 13004 } 13005 13006 remote_used += cur_len; 13007 if (remote_used >= remote_sglist[j].len) { 13008 j++; 13009 remote_used = 0; 13010 } 13011 total_used += cur_len; 13012 13013 if (total_used >= io->scsiio.kern_data_len) 13014 rq->callback = callback; 13015 13016#if 0 13017 printf("%s: %s: local %p remote %p size %d\n", __func__, 13018 (command == CTL_HA_DT_CMD_WRITE) ? "WRITE" : "READ", 13019 rq->local, rq->remote, rq->size); 13020#endif 13021 13022 isc_ret = ctl_dt_single(rq); 13023 if (isc_ret > CTL_HA_STATUS_SUCCESS) 13024 break; 13025 } 13026 if (isc_ret != CTL_HA_STATUS_WAIT) { 13027 rq->ret = isc_ret; 13028 callback(rq); 13029 } 13030 13031 return (0); 13032} 13033 13034static void 13035ctl_datamove_remote_read(union ctl_io *io) 13036{ 13037 int retval; 13038 uint32_t i; 13039 13040 /* 13041 * This will send an error to the other controller in the case of a 13042 * failure. 13043 */ 13044 retval = ctl_datamove_remote_sgl_setup(io); 13045 if (retval != 0) 13046 return; 13047 13048 retval = ctl_datamove_remote_xfer(io, CTL_HA_DT_CMD_READ, 13049 ctl_datamove_remote_read_cb); 13050 if (retval != 0) { 13051 /* 13052 * Make sure we free memory if there was an error.. The 13053 * ctl_datamove_remote_xfer() function will send the 13054 * datamove done message, or call the callback with an 13055 * error if there is a problem. 13056 */ 13057 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 13058 free(io->io_hdr.local_sglist[i].addr, M_CTL); 13059 free(io->io_hdr.remote_sglist, M_CTL); 13060 io->io_hdr.remote_sglist = NULL; 13061 io->io_hdr.local_sglist = NULL; 13062 } 13063} 13064 13065/* 13066 * Process a datamove request from the other controller. This is used for 13067 * XFER mode only, not SER_ONLY mode. For writes, we DMA into local memory 13068 * first. Once that is complete, the data gets DMAed into the remote 13069 * controller's memory. For reads, we DMA from the remote controller's 13070 * memory into our memory first, and then move it out to the FETD. 13071 */ 13072static void 13073ctl_datamove_remote(union ctl_io *io) 13074{ 13075 13076 mtx_assert(&control_softc->ctl_lock, MA_NOTOWNED); 13077 13078 if (io->io_hdr.flags & CTL_FLAG_FAILOVER) { 13079 ctl_failover_io(io, /*have_lock*/ 0); 13080 return; 13081 } 13082 13083 /* 13084 * Note that we look for an aborted I/O here, but don't do some of 13085 * the other checks that ctl_datamove() normally does. 13086 * We don't need to run the datamove delay code, since that should 13087 * have been done if need be on the other controller. 13088 */ 13089 if (io->io_hdr.flags & CTL_FLAG_ABORT) { 13090 printf("%s: tag 0x%04x on (%u:%u:%u) aborted\n", __func__, 13091 io->scsiio.tag_num, io->io_hdr.nexus.initid, 13092 io->io_hdr.nexus.targ_port, 13093 io->io_hdr.nexus.targ_lun); 13094 io->io_hdr.port_status = 31338; 13095 ctl_send_datamove_done(io, /*have_lock*/ 0); 13096 return; 13097 } 13098 13099 if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_OUT) 13100 ctl_datamove_remote_write(io); 13101 else if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_IN) 13102 ctl_datamove_remote_read(io); 13103 else { 13104 io->io_hdr.port_status = 31339; 13105 ctl_send_datamove_done(io, /*have_lock*/ 0); 13106 } 13107} 13108 13109static void 13110ctl_process_done(union ctl_io *io) 13111{ 13112 struct ctl_lun *lun; 13113 struct ctl_softc *softc = control_softc; 13114 void (*fe_done)(union ctl_io *io); 13115 union ctl_ha_msg msg; 13116 uint32_t targ_port = io->io_hdr.nexus.targ_port; 13117 13118 CTL_DEBUG_PRINT(("ctl_process_done\n")); 13119 fe_done = softc->ctl_ports[targ_port]->fe_done; 13120 13121#ifdef CTL_TIME_IO 13122 if ((time_uptime - io->io_hdr.start_time) > ctl_time_io_secs) { 13123 char str[256]; 13124 char path_str[64]; 13125 struct sbuf sb; 13126 13127 ctl_scsi_path_string(io, path_str, sizeof(path_str)); 13128 sbuf_new(&sb, str, sizeof(str), SBUF_FIXEDLEN); 13129 13130 sbuf_cat(&sb, path_str); 13131 switch (io->io_hdr.io_type) { 13132 case CTL_IO_SCSI: 13133 ctl_scsi_command_string(&io->scsiio, NULL, &sb); 13134 sbuf_printf(&sb, "\n"); 13135 sbuf_cat(&sb, path_str); 13136 sbuf_printf(&sb, "Tag: 0x%04x, type %d\n", 13137 io->scsiio.tag_num, io->scsiio.tag_type); 13138 break; 13139 case CTL_IO_TASK: 13140 sbuf_printf(&sb, "Task I/O type: %d, Tag: 0x%04x, " 13141 "Tag Type: %d\n", io->taskio.task_action, 13142 io->taskio.tag_num, io->taskio.tag_type); 13143 break; 13144 default: 13145 panic("%s: Invalid CTL I/O type %d\n", 13146 __func__, io->io_hdr.io_type); 13147 } 13148 sbuf_cat(&sb, path_str); 13149 sbuf_printf(&sb, "ctl_process_done: %jd seconds\n", 13150 (intmax_t)time_uptime - io->io_hdr.start_time); 13151 sbuf_finish(&sb); 13152 printf("%s", sbuf_data(&sb)); 13153 } 13154#endif /* CTL_TIME_IO */ 13155 13156 switch (io->io_hdr.io_type) { 13157 case CTL_IO_SCSI: 13158 break; 13159 case CTL_IO_TASK: 13160 if (ctl_debug & CTL_DEBUG_INFO) 13161 ctl_io_error_print(io, NULL); 13162 fe_done(io); 13163 return; 13164 default: 13165 panic("%s: Invalid CTL I/O type %d\n", 13166 __func__, io->io_hdr.io_type); 13167 } 13168 13169 lun = (struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 13170 if (lun == NULL) { 13171 CTL_DEBUG_PRINT(("NULL LUN for lun %d\n", 13172 io->io_hdr.nexus.targ_mapped_lun)); 13173 goto bailout; 13174 } 13175 13176 mtx_lock(&lun->lun_lock); 13177 13178 /* 13179 * Check to see if we have any informational exception and status 13180 * of this command can be modified to report it in form of either 13181 * RECOVERED ERROR or NO SENSE, depending on MRIE mode page field. 13182 */ 13183 if (lun->ie_reported == 0 && lun->ie_asc != 0 && 13184 io->io_hdr.status == CTL_SUCCESS && 13185 (io->io_hdr.flags & CTL_FLAG_STATUS_SENT) == 0) { 13186 uint8_t mrie = lun->MODE_IE.mrie; 13187 uint8_t per = ((lun->MODE_RWER.byte3 & SMS_RWER_PER) || 13188 (lun->MODE_VER.byte3 & SMS_VER_PER)); 13189 if (((mrie == SIEP_MRIE_REC_COND && per) || 13190 mrie == SIEP_MRIE_REC_UNCOND || 13191 mrie == SIEP_MRIE_NO_SENSE) && 13192 (ctl_get_cmd_entry(&io->scsiio, NULL)->flags & 13193 CTL_CMD_FLAG_NO_SENSE) == 0) { 13194 ctl_set_sense(&io->scsiio, 13195 /*current_error*/ 1, 13196 /*sense_key*/ (mrie == SIEP_MRIE_NO_SENSE) ? 13197 SSD_KEY_NO_SENSE : SSD_KEY_RECOVERED_ERROR, 13198 /*asc*/ lun->ie_asc, 13199 /*ascq*/ lun->ie_ascq, 13200 SSD_ELEM_NONE); 13201 lun->ie_reported = 1; 13202 } 13203 } else if (lun->ie_reported < 0) 13204 lun->ie_reported = 0; 13205 13206 /* 13207 * Check to see if we have any errors to inject here. We only 13208 * inject errors for commands that don't already have errors set. 13209 */ 13210 if (!STAILQ_EMPTY(&lun->error_list) && 13211 ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS) && 13212 ((io->io_hdr.flags & CTL_FLAG_STATUS_SENT) == 0)) 13213 ctl_inject_error(lun, io); 13214 13215 /* 13216 * XXX KDM how do we treat commands that aren't completed 13217 * successfully? 13218 * 13219 * XXX KDM should we also track I/O latency? 13220 */ 13221 if ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS && 13222 io->io_hdr.io_type == CTL_IO_SCSI) { 13223#ifdef CTL_TIME_IO 13224 struct bintime cur_bt; 13225#endif 13226 int type; 13227 13228 if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == 13229 CTL_FLAG_DATA_IN) 13230 type = CTL_STATS_READ; 13231 else if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == 13232 CTL_FLAG_DATA_OUT) 13233 type = CTL_STATS_WRITE; 13234 else 13235 type = CTL_STATS_NO_IO; 13236 13237 lun->stats.ports[targ_port].bytes[type] += 13238 io->scsiio.kern_total_len; 13239 lun->stats.ports[targ_port].operations[type]++; 13240#ifdef CTL_TIME_IO 13241 bintime_add(&lun->stats.ports[targ_port].dma_time[type], 13242 &io->io_hdr.dma_bt); 13243 getbinuptime(&cur_bt); 13244 bintime_sub(&cur_bt, &io->io_hdr.start_bt); 13245 bintime_add(&lun->stats.ports[targ_port].time[type], &cur_bt); 13246#endif 13247 lun->stats.ports[targ_port].num_dmas[type] += 13248 io->io_hdr.num_dmas; 13249 } 13250 13251 /* 13252 * Remove this from the OOA queue. 13253 */ 13254 TAILQ_REMOVE(&lun->ooa_queue, &io->io_hdr, ooa_links); 13255#ifdef CTL_TIME_IO 13256 if (TAILQ_EMPTY(&lun->ooa_queue)) 13257 lun->last_busy = getsbinuptime(); 13258#endif 13259 13260 /* 13261 * Run through the blocked queue on this LUN and see if anything 13262 * has become unblocked, now that this transaction is done. 13263 */ 13264 ctl_check_blocked(lun); 13265 13266 /* 13267 * If the LUN has been invalidated, free it if there is nothing 13268 * left on its OOA queue. 13269 */ 13270 if ((lun->flags & CTL_LUN_INVALID) 13271 && TAILQ_EMPTY(&lun->ooa_queue)) { 13272 mtx_unlock(&lun->lun_lock); 13273 mtx_lock(&softc->ctl_lock); 13274 ctl_free_lun(lun); 13275 mtx_unlock(&softc->ctl_lock); 13276 } else 13277 mtx_unlock(&lun->lun_lock); 13278 13279bailout: 13280 13281 /* 13282 * If this command has been aborted, make sure we set the status 13283 * properly. The FETD is responsible for freeing the I/O and doing 13284 * whatever it needs to do to clean up its state. 13285 */ 13286 if (io->io_hdr.flags & CTL_FLAG_ABORT) 13287 ctl_set_task_aborted(&io->scsiio); 13288 13289 /* 13290 * If enabled, print command error status. 13291 */ 13292 if ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_SUCCESS && 13293 (ctl_debug & CTL_DEBUG_INFO) != 0) 13294 ctl_io_error_print(io, NULL); 13295 13296 /* 13297 * Tell the FETD or the other shelf controller we're done with this 13298 * command. Note that only SCSI commands get to this point. Task 13299 * management commands are completed above. 13300 */ 13301 if ((softc->ha_mode != CTL_HA_MODE_XFER) && 13302 (io->io_hdr.flags & CTL_FLAG_SENT_2OTHER_SC)) { 13303 memset(&msg, 0, sizeof(msg)); 13304 msg.hdr.msg_type = CTL_MSG_FINISH_IO; 13305 msg.hdr.serializing_sc = io->io_hdr.serializing_sc; 13306 msg.hdr.nexus = io->io_hdr.nexus; 13307 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, 13308 sizeof(msg.scsi) - sizeof(msg.scsi.sense_data), 13309 M_WAITOK); 13310 } 13311 13312 fe_done(io); 13313} 13314 13315#ifdef CTL_WITH_CA 13316/* 13317 * Front end should call this if it doesn't do autosense. When the request 13318 * sense comes back in from the initiator, we'll dequeue this and send it. 13319 */ 13320int 13321ctl_queue_sense(union ctl_io *io) 13322{ 13323 struct ctl_lun *lun; 13324 struct ctl_port *port; 13325 struct ctl_softc *softc; 13326 uint32_t initidx, targ_lun; 13327 13328 CTL_DEBUG_PRINT(("ctl_queue_sense\n")); 13329 13330 softc = control_softc; 13331 port = ctl_io_port(&ctsio->io_hdr); 13332 targ_lun = ctl_lun_map_from_port(port, io->io_hdr.nexus.targ_lun); 13333 13334 /* 13335 * LUN lookup will likely move to the ctl_work_thread() once we 13336 * have our new queueing infrastructure (that doesn't put things on 13337 * a per-LUN queue initially). That is so that we can handle 13338 * things like an INQUIRY to a LUN that we don't have enabled. We 13339 * can't deal with that right now. 13340 * If we don't have a LUN for this, just toss the sense information. 13341 */ 13342 mtx_lock(&softc->ctl_lock); 13343 if (targ_lun >= CTL_MAX_LUNS || 13344 (lun = softc->ctl_luns[targ_lun]) == NULL) { 13345 mtx_unlock(&softc->ctl_lock); 13346 goto bailout; 13347 } 13348 mtx_lock(&lun->lun_lock); 13349 mtx_unlock(&softc->ctl_lock); 13350 13351 /* 13352 * Already have CA set for this LUN...toss the sense information. 13353 */ 13354 initidx = ctl_get_initindex(&io->io_hdr.nexus); 13355 if (ctl_is_set(lun->have_ca, initidx)) { 13356 mtx_unlock(&lun->lun_lock); 13357 goto bailout; 13358 } 13359 13360 memcpy(&lun->pending_sense[initidx], &io->scsiio.sense_data, 13361 MIN(sizeof(lun->pending_sense[initidx]), 13362 sizeof(io->scsiio.sense_data))); 13363 ctl_set_mask(lun->have_ca, initidx); 13364 mtx_unlock(&lun->lun_lock); 13365 13366bailout: 13367 ctl_free_io(io); 13368 return (CTL_RETVAL_COMPLETE); 13369} 13370#endif 13371 13372/* 13373 * Primary command inlet from frontend ports. All SCSI and task I/O 13374 * requests must go through this function. 13375 */ 13376int 13377ctl_queue(union ctl_io *io) 13378{ 13379 struct ctl_port *port; 13380 13381 CTL_DEBUG_PRINT(("ctl_queue cdb[0]=%02X\n", io->scsiio.cdb[0])); 13382 13383#ifdef CTL_TIME_IO 13384 io->io_hdr.start_time = time_uptime; 13385 getbinuptime(&io->io_hdr.start_bt); 13386#endif /* CTL_TIME_IO */ 13387 13388 /* Map FE-specific LUN ID into global one. */ 13389 port = ctl_io_port(&io->io_hdr); 13390 io->io_hdr.nexus.targ_mapped_lun = 13391 ctl_lun_map_from_port(port, io->io_hdr.nexus.targ_lun); 13392 13393 switch (io->io_hdr.io_type) { 13394 case CTL_IO_SCSI: 13395 case CTL_IO_TASK: 13396 if (ctl_debug & CTL_DEBUG_CDB) 13397 ctl_io_print(io); 13398 ctl_enqueue_incoming(io); 13399 break; 13400 default: 13401 printf("ctl_queue: unknown I/O type %d\n", io->io_hdr.io_type); 13402 return (EINVAL); 13403 } 13404 13405 return (CTL_RETVAL_COMPLETE); 13406} 13407 13408#ifdef CTL_IO_DELAY 13409static void 13410ctl_done_timer_wakeup(void *arg) 13411{ 13412 union ctl_io *io; 13413 13414 io = (union ctl_io *)arg; 13415 ctl_done(io); 13416} 13417#endif /* CTL_IO_DELAY */ 13418 13419void 13420ctl_serseq_done(union ctl_io *io) 13421{ 13422 struct ctl_lun *lun; 13423 13424 lun = (struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 13425 if (lun->be_lun == NULL || 13426 lun->be_lun->serseq == CTL_LUN_SERSEQ_OFF) 13427 return; 13428 mtx_lock(&lun->lun_lock); 13429 io->io_hdr.flags |= CTL_FLAG_SERSEQ_DONE; 13430 ctl_check_blocked(lun); 13431 mtx_unlock(&lun->lun_lock); 13432} 13433 13434void 13435ctl_done(union ctl_io *io) 13436{ 13437 13438 /* 13439 * Enable this to catch duplicate completion issues. 13440 */ 13441#if 0 13442 if (io->io_hdr.flags & CTL_FLAG_ALREADY_DONE) { 13443 printf("%s: type %d msg %d cdb %x iptl: " 13444 "%u:%u:%u tag 0x%04x " 13445 "flag %#x status %x\n", 13446 __func__, 13447 io->io_hdr.io_type, 13448 io->io_hdr.msg_type, 13449 io->scsiio.cdb[0], 13450 io->io_hdr.nexus.initid, 13451 io->io_hdr.nexus.targ_port, 13452 io->io_hdr.nexus.targ_lun, 13453 (io->io_hdr.io_type == 13454 CTL_IO_TASK) ? 13455 io->taskio.tag_num : 13456 io->scsiio.tag_num, 13457 io->io_hdr.flags, 13458 io->io_hdr.status); 13459 } else 13460 io->io_hdr.flags |= CTL_FLAG_ALREADY_DONE; 13461#endif 13462 13463 /* 13464 * This is an internal copy of an I/O, and should not go through 13465 * the normal done processing logic. 13466 */ 13467 if (io->io_hdr.flags & CTL_FLAG_INT_COPY) 13468 return; 13469 13470#ifdef CTL_IO_DELAY 13471 if (io->io_hdr.flags & CTL_FLAG_DELAY_DONE) { 13472 io->io_hdr.flags &= ~CTL_FLAG_DELAY_DONE; 13473 } else { 13474 struct ctl_lun *lun; 13475 13476 lun =(struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 13477 13478 if ((lun != NULL) 13479 && (lun->delay_info.done_delay > 0)) { 13480 13481 callout_init(&io->io_hdr.delay_callout, /*mpsafe*/ 1); 13482 io->io_hdr.flags |= CTL_FLAG_DELAY_DONE; 13483 callout_reset(&io->io_hdr.delay_callout, 13484 lun->delay_info.done_delay * hz, 13485 ctl_done_timer_wakeup, io); 13486 if (lun->delay_info.done_type == CTL_DELAY_TYPE_ONESHOT) 13487 lun->delay_info.done_delay = 0; 13488 return; 13489 } 13490 } 13491#endif /* CTL_IO_DELAY */ 13492 13493 ctl_enqueue_done(io); 13494} 13495 13496static void 13497ctl_work_thread(void *arg) 13498{ 13499 struct ctl_thread *thr = (struct ctl_thread *)arg; 13500 struct ctl_softc *softc = thr->ctl_softc; 13501 union ctl_io *io; 13502 int retval; 13503 13504 CTL_DEBUG_PRINT(("ctl_work_thread starting\n")); 13505 13506 for (;;) { 13507 /* 13508 * We handle the queues in this order: 13509 * - ISC 13510 * - done queue (to free up resources, unblock other commands) 13511 * - RtR queue 13512 * - incoming queue 13513 * 13514 * If those queues are empty, we break out of the loop and 13515 * go to sleep. 13516 */ 13517 mtx_lock(&thr->queue_lock); 13518 io = (union ctl_io *)STAILQ_FIRST(&thr->isc_queue); 13519 if (io != NULL) { 13520 STAILQ_REMOVE_HEAD(&thr->isc_queue, links); 13521 mtx_unlock(&thr->queue_lock); 13522 ctl_handle_isc(io); 13523 continue; 13524 } 13525 io = (union ctl_io *)STAILQ_FIRST(&thr->done_queue); 13526 if (io != NULL) { 13527 STAILQ_REMOVE_HEAD(&thr->done_queue, links); 13528 /* clear any blocked commands, call fe_done */ 13529 mtx_unlock(&thr->queue_lock); 13530 ctl_process_done(io); 13531 continue; 13532 } 13533 io = (union ctl_io *)STAILQ_FIRST(&thr->incoming_queue); 13534 if (io != NULL) { 13535 STAILQ_REMOVE_HEAD(&thr->incoming_queue, links); 13536 mtx_unlock(&thr->queue_lock); 13537 if (io->io_hdr.io_type == CTL_IO_TASK) 13538 ctl_run_task(io); 13539 else 13540 ctl_scsiio_precheck(softc, &io->scsiio); 13541 continue; 13542 } 13543 io = (union ctl_io *)STAILQ_FIRST(&thr->rtr_queue); 13544 if (io != NULL) { 13545 STAILQ_REMOVE_HEAD(&thr->rtr_queue, links); 13546 mtx_unlock(&thr->queue_lock); 13547 retval = ctl_scsiio(&io->scsiio); 13548 if (retval != CTL_RETVAL_COMPLETE) 13549 CTL_DEBUG_PRINT(("ctl_scsiio failed\n")); 13550 continue; 13551 } 13552 13553 /* Sleep until we have something to do. */ 13554 mtx_sleep(thr, &thr->queue_lock, PDROP | PRIBIO, "-", 0); 13555 } 13556} 13557 13558static void 13559ctl_lun_thread(void *arg) 13560{ 13561 struct ctl_softc *softc = (struct ctl_softc *)arg; 13562 struct ctl_be_lun *be_lun; 13563 13564 CTL_DEBUG_PRINT(("ctl_lun_thread starting\n")); 13565 13566 for (;;) { 13567 mtx_lock(&softc->ctl_lock); 13568 be_lun = STAILQ_FIRST(&softc->pending_lun_queue); 13569 if (be_lun != NULL) { 13570 STAILQ_REMOVE_HEAD(&softc->pending_lun_queue, links); 13571 mtx_unlock(&softc->ctl_lock); 13572 ctl_create_lun(be_lun); 13573 continue; 13574 } 13575 13576 /* Sleep until we have something to do. */ 13577 mtx_sleep(&softc->pending_lun_queue, &softc->ctl_lock, 13578 PDROP | PRIBIO, "-", 0); 13579 } 13580} 13581 13582static void 13583ctl_thresh_thread(void *arg) 13584{ 13585 struct ctl_softc *softc = (struct ctl_softc *)arg; 13586 struct ctl_lun *lun; 13587 struct ctl_logical_block_provisioning_page *page; 13588 const char *attr; 13589 union ctl_ha_msg msg; 13590 uint64_t thres, val; 13591 int i, e, set; 13592 13593 CTL_DEBUG_PRINT(("ctl_thresh_thread starting\n")); 13594 13595 for (;;) { 13596 mtx_lock(&softc->ctl_lock); 13597 STAILQ_FOREACH(lun, &softc->lun_list, links) { 13598 if ((lun->flags & CTL_LUN_DISABLED) || 13599 (lun->flags & CTL_LUN_NO_MEDIA) || 13600 lun->backend->lun_attr == NULL) 13601 continue; 13602 if ((lun->flags & CTL_LUN_PRIMARY_SC) == 0 && 13603 softc->ha_mode == CTL_HA_MODE_XFER) 13604 continue; 13605 if ((lun->MODE_RWER.byte8 & SMS_RWER_LBPERE) == 0) 13606 continue; 13607 e = 0; 13608 page = &lun->MODE_LBP; 13609 for (i = 0; i < CTL_NUM_LBP_THRESH; i++) { 13610 if ((page->descr[i].flags & SLBPPD_ENABLED) == 0) 13611 continue; 13612 thres = scsi_4btoul(page->descr[i].count); 13613 thres <<= CTL_LBP_EXPONENT; 13614 switch (page->descr[i].resource) { 13615 case 0x01: 13616 attr = "blocksavail"; 13617 break; 13618 case 0x02: 13619 attr = "blocksused"; 13620 break; 13621 case 0xf1: 13622 attr = "poolblocksavail"; 13623 break; 13624 case 0xf2: 13625 attr = "poolblocksused"; 13626 break; 13627 default: 13628 continue; 13629 } 13630 mtx_unlock(&softc->ctl_lock); // XXX 13631 val = lun->backend->lun_attr( 13632 lun->be_lun->be_lun, attr); 13633 mtx_lock(&softc->ctl_lock); 13634 if (val == UINT64_MAX) 13635 continue; 13636 if ((page->descr[i].flags & SLBPPD_ARMING_MASK) 13637 == SLBPPD_ARMING_INC) 13638 e = (val >= thres); 13639 else 13640 e = (val <= thres); 13641 if (e) 13642 break; 13643 } 13644 mtx_lock(&lun->lun_lock); 13645 if (e) { 13646 scsi_u64to8b((uint8_t *)&page->descr[i] - 13647 (uint8_t *)page, lun->ua_tpt_info); 13648 if (lun->lasttpt == 0 || 13649 time_uptime - lun->lasttpt >= CTL_LBP_UA_PERIOD) { 13650 lun->lasttpt = time_uptime; 13651 ctl_est_ua_all(lun, -1, CTL_UA_THIN_PROV_THRES); 13652 set = 1; 13653 } else 13654 set = 0; 13655 } else { 13656 lun->lasttpt = 0; 13657 ctl_clr_ua_all(lun, -1, CTL_UA_THIN_PROV_THRES); 13658 set = -1; 13659 } 13660 mtx_unlock(&lun->lun_lock); 13661 if (set != 0 && 13662 lun->ctl_softc->ha_mode == CTL_HA_MODE_XFER) { 13663 /* Send msg to other side. */ 13664 bzero(&msg.ua, sizeof(msg.ua)); 13665 msg.hdr.msg_type = CTL_MSG_UA; 13666 msg.hdr.nexus.initid = -1; 13667 msg.hdr.nexus.targ_port = -1; 13668 msg.hdr.nexus.targ_lun = lun->lun; 13669 msg.hdr.nexus.targ_mapped_lun = lun->lun; 13670 msg.ua.ua_all = 1; 13671 msg.ua.ua_set = (set > 0); 13672 msg.ua.ua_type = CTL_UA_THIN_PROV_THRES; 13673 memcpy(msg.ua.ua_info, lun->ua_tpt_info, 8); 13674 mtx_unlock(&softc->ctl_lock); // XXX 13675 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, 13676 sizeof(msg.ua), M_WAITOK); 13677 mtx_lock(&softc->ctl_lock); 13678 } 13679 } 13680 mtx_unlock(&softc->ctl_lock); 13681 pause("-", CTL_LBP_PERIOD * hz); 13682 } 13683} 13684 13685static void 13686ctl_enqueue_incoming(union ctl_io *io) 13687{ 13688 struct ctl_softc *softc = control_softc; 13689 struct ctl_thread *thr; 13690 u_int idx; 13691 13692 idx = (io->io_hdr.nexus.targ_port * 127 + 13693 io->io_hdr.nexus.initid) % worker_threads; 13694 thr = &softc->threads[idx]; 13695 mtx_lock(&thr->queue_lock); 13696 STAILQ_INSERT_TAIL(&thr->incoming_queue, &io->io_hdr, links); 13697 mtx_unlock(&thr->queue_lock); 13698 wakeup(thr); 13699} 13700 13701static void 13702ctl_enqueue_rtr(union ctl_io *io) 13703{ 13704 struct ctl_softc *softc = control_softc; 13705 struct ctl_thread *thr; 13706 13707 thr = &softc->threads[io->io_hdr.nexus.targ_mapped_lun % worker_threads]; 13708 mtx_lock(&thr->queue_lock); 13709 STAILQ_INSERT_TAIL(&thr->rtr_queue, &io->io_hdr, links); 13710 mtx_unlock(&thr->queue_lock); 13711 wakeup(thr); 13712} 13713 13714static void 13715ctl_enqueue_done(union ctl_io *io) 13716{ 13717 struct ctl_softc *softc = control_softc; 13718 struct ctl_thread *thr; 13719 13720 thr = &softc->threads[io->io_hdr.nexus.targ_mapped_lun % worker_threads]; 13721 mtx_lock(&thr->queue_lock); 13722 STAILQ_INSERT_TAIL(&thr->done_queue, &io->io_hdr, links); 13723 mtx_unlock(&thr->queue_lock); 13724 wakeup(thr); 13725} 13726 13727static void 13728ctl_enqueue_isc(union ctl_io *io) 13729{ 13730 struct ctl_softc *softc = control_softc; 13731 struct ctl_thread *thr; 13732 13733 thr = &softc->threads[io->io_hdr.nexus.targ_mapped_lun % worker_threads]; 13734 mtx_lock(&thr->queue_lock); 13735 STAILQ_INSERT_TAIL(&thr->isc_queue, &io->io_hdr, links); 13736 mtx_unlock(&thr->queue_lock); 13737 wakeup(thr); 13738} 13739 13740/* 13741 * vim: ts=8 13742 */ 13743