ctl.c revision 311427
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 311427 2017-01-05 11:44:56Z 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*/0 282}; 283 284const static struct scsi_info_exceptions_page ie_page_default = { 285 /*page_code*/SMS_INFO_EXCEPTIONS_PAGE, 286 /*page_length*/sizeof(struct scsi_info_exceptions_page) - 2, 287 /*info_flags*/SIEP_FLAGS_EWASC, 288 /*mrie*/SIEP_MRIE_NO, 289 /*interval_timer*/{0, 0, 0, 0}, 290 /*report_count*/{0, 0, 0, 1} 291}; 292 293const static struct scsi_info_exceptions_page ie_page_changeable = { 294 /*page_code*/SMS_INFO_EXCEPTIONS_PAGE, 295 /*page_length*/sizeof(struct scsi_info_exceptions_page) - 2, 296 /*info_flags*/SIEP_FLAGS_EWASC | SIEP_FLAGS_DEXCPT | SIEP_FLAGS_TEST | 297 SIEP_FLAGS_LOGERR, 298 /*mrie*/0x0f, 299 /*interval_timer*/{0xff, 0xff, 0xff, 0xff}, 300 /*report_count*/{0xff, 0xff, 0xff, 0xff} 301}; 302 303#define CTL_LBPM_LEN (sizeof(struct ctl_logical_block_provisioning_page) - 4) 304 305const static struct ctl_logical_block_provisioning_page lbp_page_default = {{ 306 /*page_code*/SMS_INFO_EXCEPTIONS_PAGE | SMPH_SPF, 307 /*subpage_code*/0x02, 308 /*page_length*/{CTL_LBPM_LEN >> 8, CTL_LBPM_LEN}, 309 /*flags*/0, 310 /*reserved*/{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}, 311 /*descr*/{}}, 312 {{/*flags*/0, 313 /*resource*/0x01, 314 /*reserved*/{0, 0}, 315 /*count*/{0, 0, 0, 0}}, 316 {/*flags*/0, 317 /*resource*/0x02, 318 /*reserved*/{0, 0}, 319 /*count*/{0, 0, 0, 0}}, 320 {/*flags*/0, 321 /*resource*/0xf1, 322 /*reserved*/{0, 0}, 323 /*count*/{0, 0, 0, 0}}, 324 {/*flags*/0, 325 /*resource*/0xf2, 326 /*reserved*/{0, 0}, 327 /*count*/{0, 0, 0, 0}} 328 } 329}; 330 331const static struct ctl_logical_block_provisioning_page lbp_page_changeable = {{ 332 /*page_code*/SMS_INFO_EXCEPTIONS_PAGE | SMPH_SPF, 333 /*subpage_code*/0x02, 334 /*page_length*/{CTL_LBPM_LEN >> 8, CTL_LBPM_LEN}, 335 /*flags*/SLBPP_SITUA, 336 /*reserved*/{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}, 337 /*descr*/{}}, 338 {{/*flags*/0, 339 /*resource*/0, 340 /*reserved*/{0, 0}, 341 /*count*/{0, 0, 0, 0}}, 342 {/*flags*/0, 343 /*resource*/0, 344 /*reserved*/{0, 0}, 345 /*count*/{0, 0, 0, 0}}, 346 {/*flags*/0, 347 /*resource*/0, 348 /*reserved*/{0, 0}, 349 /*count*/{0, 0, 0, 0}}, 350 {/*flags*/0, 351 /*resource*/0, 352 /*reserved*/{0, 0}, 353 /*count*/{0, 0, 0, 0}} 354 } 355}; 356 357const static struct scsi_cddvd_capabilities_page cddvd_page_default = { 358 /*page_code*/SMS_CDDVD_CAPS_PAGE, 359 /*page_length*/sizeof(struct scsi_cddvd_capabilities_page) - 2, 360 /*caps1*/0x3f, 361 /*caps2*/0x00, 362 /*caps3*/0xf0, 363 /*caps4*/0x00, 364 /*caps5*/0x29, 365 /*caps6*/0x00, 366 /*obsolete*/{0, 0}, 367 /*nvol_levels*/{0, 0}, 368 /*buffer_size*/{8, 0}, 369 /*obsolete2*/{0, 0}, 370 /*reserved*/0, 371 /*digital*/0, 372 /*obsolete3*/0, 373 /*copy_management*/0, 374 /*reserved2*/0, 375 /*rotation_control*/0, 376 /*cur_write_speed*/0, 377 /*num_speed_descr*/0, 378}; 379 380const static struct scsi_cddvd_capabilities_page cddvd_page_changeable = { 381 /*page_code*/SMS_CDDVD_CAPS_PAGE, 382 /*page_length*/sizeof(struct scsi_cddvd_capabilities_page) - 2, 383 /*caps1*/0, 384 /*caps2*/0, 385 /*caps3*/0, 386 /*caps4*/0, 387 /*caps5*/0, 388 /*caps6*/0, 389 /*obsolete*/{0, 0}, 390 /*nvol_levels*/{0, 0}, 391 /*buffer_size*/{0, 0}, 392 /*obsolete2*/{0, 0}, 393 /*reserved*/0, 394 /*digital*/0, 395 /*obsolete3*/0, 396 /*copy_management*/0, 397 /*reserved2*/0, 398 /*rotation_control*/0, 399 /*cur_write_speed*/0, 400 /*num_speed_descr*/0, 401}; 402 403SYSCTL_NODE(_kern_cam, OID_AUTO, ctl, CTLFLAG_RD, 0, "CAM Target Layer"); 404static int worker_threads = -1; 405SYSCTL_INT(_kern_cam_ctl, OID_AUTO, worker_threads, CTLFLAG_RDTUN, 406 &worker_threads, 1, "Number of worker threads"); 407static int ctl_debug = CTL_DEBUG_NONE; 408SYSCTL_INT(_kern_cam_ctl, OID_AUTO, debug, CTLFLAG_RWTUN, 409 &ctl_debug, 0, "Enabled debug flags"); 410 411/* 412 * Supported pages (0x00), Serial number (0x80), Device ID (0x83), 413 * Extended INQUIRY Data (0x86), Mode Page Policy (0x87), 414 * SCSI Ports (0x88), Third-party Copy (0x8F), Block limits (0xB0), 415 * Block Device Characteristics (0xB1) and Logical Block Provisioning (0xB2) 416 */ 417#define SCSI_EVPD_NUM_SUPPORTED_PAGES 10 418 419static void ctl_isc_event_handler(ctl_ha_channel chanel, ctl_ha_event event, 420 int param); 421static void ctl_copy_sense_data(union ctl_ha_msg *src, union ctl_io *dest); 422static void ctl_copy_sense_data_back(union ctl_io *src, union ctl_ha_msg *dest); 423static int ctl_init(void); 424void ctl_shutdown(void); 425static int ctl_open(struct cdev *dev, int flags, int fmt, struct thread *td); 426static int ctl_close(struct cdev *dev, int flags, int fmt, struct thread *td); 427static int ctl_serialize_other_sc_cmd(struct ctl_scsiio *ctsio); 428static void ctl_ioctl_fill_ooa(struct ctl_lun *lun, uint32_t *cur_fill_num, 429 struct ctl_ooa *ooa_hdr, 430 struct ctl_ooa_entry *kern_entries); 431static int ctl_ioctl(struct cdev *dev, u_long cmd, caddr_t addr, int flag, 432 struct thread *td); 433static int ctl_alloc_lun(struct ctl_softc *ctl_softc, struct ctl_lun *lun, 434 struct ctl_be_lun *be_lun); 435static int ctl_free_lun(struct ctl_lun *lun); 436static void ctl_create_lun(struct ctl_be_lun *be_lun); 437static struct ctl_port * ctl_io_port(struct ctl_io_hdr *io_hdr); 438 439static int ctl_do_mode_select(union ctl_io *io); 440static int ctl_pro_preempt(struct ctl_softc *softc, struct ctl_lun *lun, 441 uint64_t res_key, uint64_t sa_res_key, 442 uint8_t type, uint32_t residx, 443 struct ctl_scsiio *ctsio, 444 struct scsi_per_res_out *cdb, 445 struct scsi_per_res_out_parms* param); 446static void ctl_pro_preempt_other(struct ctl_lun *lun, 447 union ctl_ha_msg *msg); 448static void ctl_hndl_per_res_out_on_other_sc(union ctl_ha_msg *msg); 449static int ctl_inquiry_evpd_supported(struct ctl_scsiio *ctsio, int alloc_len); 450static int ctl_inquiry_evpd_serial(struct ctl_scsiio *ctsio, int alloc_len); 451static int ctl_inquiry_evpd_devid(struct ctl_scsiio *ctsio, int alloc_len); 452static int ctl_inquiry_evpd_eid(struct ctl_scsiio *ctsio, int alloc_len); 453static int ctl_inquiry_evpd_mpp(struct ctl_scsiio *ctsio, int alloc_len); 454static int ctl_inquiry_evpd_scsi_ports(struct ctl_scsiio *ctsio, 455 int alloc_len); 456static int ctl_inquiry_evpd_block_limits(struct ctl_scsiio *ctsio, 457 int alloc_len); 458static int ctl_inquiry_evpd_bdc(struct ctl_scsiio *ctsio, int alloc_len); 459static int ctl_inquiry_evpd_lbp(struct ctl_scsiio *ctsio, int alloc_len); 460static int ctl_inquiry_evpd(struct ctl_scsiio *ctsio); 461static int ctl_inquiry_std(struct ctl_scsiio *ctsio); 462static int ctl_get_lba_len(union ctl_io *io, uint64_t *lba, uint64_t *len); 463static ctl_action ctl_extent_check(union ctl_io *io1, union ctl_io *io2, 464 bool seq); 465static ctl_action ctl_extent_check_seq(union ctl_io *io1, union ctl_io *io2); 466static ctl_action ctl_check_for_blockage(struct ctl_lun *lun, 467 union ctl_io *pending_io, union ctl_io *ooa_io); 468static ctl_action ctl_check_ooa(struct ctl_lun *lun, union ctl_io *pending_io, 469 union ctl_io *starting_io); 470static int ctl_check_blocked(struct ctl_lun *lun); 471static int ctl_scsiio_lun_check(struct ctl_lun *lun, 472 const struct ctl_cmd_entry *entry, 473 struct ctl_scsiio *ctsio); 474static void ctl_failover_lun(union ctl_io *io); 475static int ctl_scsiio_precheck(struct ctl_softc *ctl_softc, 476 struct ctl_scsiio *ctsio); 477static int ctl_scsiio(struct ctl_scsiio *ctsio); 478 479static int ctl_bus_reset(struct ctl_softc *ctl_softc, union ctl_io *io); 480static int ctl_target_reset(struct ctl_softc *ctl_softc, union ctl_io *io, 481 ctl_ua_type ua_type); 482static int ctl_do_lun_reset(struct ctl_lun *lun, union ctl_io *io, 483 ctl_ua_type ua_type); 484static int ctl_lun_reset(struct ctl_softc *ctl_softc, union ctl_io *io); 485static int ctl_abort_task(union ctl_io *io); 486static int ctl_abort_task_set(union ctl_io *io); 487static int ctl_query_task(union ctl_io *io, int task_set); 488static int ctl_i_t_nexus_reset(union ctl_io *io); 489static int ctl_query_async_event(union ctl_io *io); 490static void ctl_run_task(union ctl_io *io); 491#ifdef CTL_IO_DELAY 492static void ctl_datamove_timer_wakeup(void *arg); 493static void ctl_done_timer_wakeup(void *arg); 494#endif /* CTL_IO_DELAY */ 495 496static void ctl_send_datamove_done(union ctl_io *io, int have_lock); 497static void ctl_datamove_remote_write_cb(struct ctl_ha_dt_req *rq); 498static int ctl_datamove_remote_dm_write_cb(union ctl_io *io); 499static void ctl_datamove_remote_write(union ctl_io *io); 500static int ctl_datamove_remote_dm_read_cb(union ctl_io *io); 501static void ctl_datamove_remote_read_cb(struct ctl_ha_dt_req *rq); 502static int ctl_datamove_remote_sgl_setup(union ctl_io *io); 503static int ctl_datamove_remote_xfer(union ctl_io *io, unsigned command, 504 ctl_ha_dt_cb callback); 505static void ctl_datamove_remote_read(union ctl_io *io); 506static void ctl_datamove_remote(union ctl_io *io); 507static void ctl_process_done(union ctl_io *io); 508static void ctl_lun_thread(void *arg); 509static void ctl_thresh_thread(void *arg); 510static void ctl_work_thread(void *arg); 511static void ctl_enqueue_incoming(union ctl_io *io); 512static void ctl_enqueue_rtr(union ctl_io *io); 513static void ctl_enqueue_done(union ctl_io *io); 514static void ctl_enqueue_isc(union ctl_io *io); 515static const struct ctl_cmd_entry * 516 ctl_get_cmd_entry(struct ctl_scsiio *ctsio, int *sa); 517static const struct ctl_cmd_entry * 518 ctl_validate_command(struct ctl_scsiio *ctsio); 519static int ctl_cmd_applicable(uint8_t lun_type, 520 const struct ctl_cmd_entry *entry); 521 522static uint64_t ctl_get_prkey(struct ctl_lun *lun, uint32_t residx); 523static void ctl_clr_prkey(struct ctl_lun *lun, uint32_t residx); 524static void ctl_alloc_prkey(struct ctl_lun *lun, uint32_t residx); 525static void ctl_set_prkey(struct ctl_lun *lun, uint32_t residx, uint64_t key); 526 527/* 528 * Load the serialization table. This isn't very pretty, but is probably 529 * the easiest way to do it. 530 */ 531#include "ctl_ser_table.c" 532 533/* 534 * We only need to define open, close and ioctl routines for this driver. 535 */ 536static struct cdevsw ctl_cdevsw = { 537 .d_version = D_VERSION, 538 .d_flags = 0, 539 .d_open = ctl_open, 540 .d_close = ctl_close, 541 .d_ioctl = ctl_ioctl, 542 .d_name = "ctl", 543}; 544 545 546MALLOC_DEFINE(M_CTL, "ctlmem", "Memory used for CTL"); 547 548static int ctl_module_event_handler(module_t, int /*modeventtype_t*/, void *); 549 550static moduledata_t ctl_moduledata = { 551 "ctl", 552 ctl_module_event_handler, 553 NULL 554}; 555 556DECLARE_MODULE(ctl, ctl_moduledata, SI_SUB_CONFIGURE, SI_ORDER_THIRD); 557MODULE_VERSION(ctl, 1); 558 559static struct ctl_frontend ha_frontend = 560{ 561 .name = "ha", 562}; 563 564static void 565ctl_ha_datamove(union ctl_io *io) 566{ 567 struct ctl_lun *lun; 568 struct ctl_sg_entry *sgl; 569 union ctl_ha_msg msg; 570 uint32_t sg_entries_sent; 571 int do_sg_copy, i, j; 572 573 lun = (struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 574 memset(&msg.dt, 0, sizeof(msg.dt)); 575 msg.hdr.msg_type = CTL_MSG_DATAMOVE; 576 msg.hdr.original_sc = io->io_hdr.original_sc; 577 msg.hdr.serializing_sc = io; 578 msg.hdr.nexus = io->io_hdr.nexus; 579 msg.hdr.status = io->io_hdr.status; 580 msg.dt.flags = io->io_hdr.flags; 581 582 /* 583 * We convert everything into a S/G list here. We can't 584 * pass by reference, only by value between controllers. 585 * So we can't pass a pointer to the S/G list, only as many 586 * S/G entries as we can fit in here. If it's possible for 587 * us to get more than CTL_HA_MAX_SG_ENTRIES S/G entries, 588 * then we need to break this up into multiple transfers. 589 */ 590 if (io->scsiio.kern_sg_entries == 0) { 591 msg.dt.kern_sg_entries = 1; 592#if 0 593 if (io->io_hdr.flags & CTL_FLAG_BUS_ADDR) { 594 msg.dt.sg_list[0].addr = io->scsiio.kern_data_ptr; 595 } else { 596 /* XXX KDM use busdma here! */ 597 msg.dt.sg_list[0].addr = 598 (void *)vtophys(io->scsiio.kern_data_ptr); 599 } 600#else 601 KASSERT((io->io_hdr.flags & CTL_FLAG_BUS_ADDR) == 0, 602 ("HA does not support BUS_ADDR")); 603 msg.dt.sg_list[0].addr = io->scsiio.kern_data_ptr; 604#endif 605 msg.dt.sg_list[0].len = io->scsiio.kern_data_len; 606 do_sg_copy = 0; 607 } else { 608 msg.dt.kern_sg_entries = io->scsiio.kern_sg_entries; 609 do_sg_copy = 1; 610 } 611 612 msg.dt.kern_data_len = io->scsiio.kern_data_len; 613 msg.dt.kern_total_len = io->scsiio.kern_total_len; 614 msg.dt.kern_data_resid = io->scsiio.kern_data_resid; 615 msg.dt.kern_rel_offset = io->scsiio.kern_rel_offset; 616 msg.dt.sg_sequence = 0; 617 618 /* 619 * Loop until we've sent all of the S/G entries. On the 620 * other end, we'll recompose these S/G entries into one 621 * contiguous list before processing. 622 */ 623 for (sg_entries_sent = 0; sg_entries_sent < msg.dt.kern_sg_entries; 624 msg.dt.sg_sequence++) { 625 msg.dt.cur_sg_entries = MIN((sizeof(msg.dt.sg_list) / 626 sizeof(msg.dt.sg_list[0])), 627 msg.dt.kern_sg_entries - sg_entries_sent); 628 if (do_sg_copy != 0) { 629 sgl = (struct ctl_sg_entry *)io->scsiio.kern_data_ptr; 630 for (i = sg_entries_sent, j = 0; 631 i < msg.dt.cur_sg_entries; i++, j++) { 632#if 0 633 if (io->io_hdr.flags & CTL_FLAG_BUS_ADDR) { 634 msg.dt.sg_list[j].addr = sgl[i].addr; 635 } else { 636 /* XXX KDM use busdma here! */ 637 msg.dt.sg_list[j].addr = 638 (void *)vtophys(sgl[i].addr); 639 } 640#else 641 KASSERT((io->io_hdr.flags & 642 CTL_FLAG_BUS_ADDR) == 0, 643 ("HA does not support BUS_ADDR")); 644 msg.dt.sg_list[j].addr = sgl[i].addr; 645#endif 646 msg.dt.sg_list[j].len = sgl[i].len; 647 } 648 } 649 650 sg_entries_sent += msg.dt.cur_sg_entries; 651 msg.dt.sg_last = (sg_entries_sent >= msg.dt.kern_sg_entries); 652 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, 653 sizeof(msg.dt) - sizeof(msg.dt.sg_list) + 654 sizeof(struct ctl_sg_entry) * msg.dt.cur_sg_entries, 655 M_WAITOK) > CTL_HA_STATUS_SUCCESS) { 656 io->io_hdr.port_status = 31341; 657 io->scsiio.be_move_done(io); 658 return; 659 } 660 msg.dt.sent_sg_entries = sg_entries_sent; 661 } 662 663 /* 664 * Officially handover the request from us to peer. 665 * If failover has just happened, then we must return error. 666 * If failover happen just after, then it is not our problem. 667 */ 668 if (lun) 669 mtx_lock(&lun->lun_lock); 670 if (io->io_hdr.flags & CTL_FLAG_FAILOVER) { 671 if (lun) 672 mtx_unlock(&lun->lun_lock); 673 io->io_hdr.port_status = 31342; 674 io->scsiio.be_move_done(io); 675 return; 676 } 677 io->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 678 io->io_hdr.flags |= CTL_FLAG_DMA_INPROG; 679 if (lun) 680 mtx_unlock(&lun->lun_lock); 681} 682 683static void 684ctl_ha_done(union ctl_io *io) 685{ 686 union ctl_ha_msg msg; 687 688 if (io->io_hdr.io_type == CTL_IO_SCSI) { 689 memset(&msg, 0, sizeof(msg)); 690 msg.hdr.msg_type = CTL_MSG_FINISH_IO; 691 msg.hdr.original_sc = io->io_hdr.original_sc; 692 msg.hdr.nexus = io->io_hdr.nexus; 693 msg.hdr.status = io->io_hdr.status; 694 msg.scsi.scsi_status = io->scsiio.scsi_status; 695 msg.scsi.tag_num = io->scsiio.tag_num; 696 msg.scsi.tag_type = io->scsiio.tag_type; 697 msg.scsi.sense_len = io->scsiio.sense_len; 698 msg.scsi.sense_residual = io->scsiio.sense_residual; 699 msg.scsi.residual = io->scsiio.residual; 700 memcpy(&msg.scsi.sense_data, &io->scsiio.sense_data, 701 io->scsiio.sense_len); 702 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, 703 sizeof(msg.scsi) - sizeof(msg.scsi.sense_data) + 704 msg.scsi.sense_len, M_WAITOK); 705 } 706 ctl_free_io(io); 707} 708 709static void 710ctl_isc_handler_finish_xfer(struct ctl_softc *ctl_softc, 711 union ctl_ha_msg *msg_info) 712{ 713 struct ctl_scsiio *ctsio; 714 715 if (msg_info->hdr.original_sc == NULL) { 716 printf("%s: original_sc == NULL!\n", __func__); 717 /* XXX KDM now what? */ 718 return; 719 } 720 721 ctsio = &msg_info->hdr.original_sc->scsiio; 722 ctsio->io_hdr.flags |= CTL_FLAG_IO_ACTIVE; 723 ctsio->io_hdr.msg_type = CTL_MSG_FINISH_IO; 724 ctsio->io_hdr.status = msg_info->hdr.status; 725 ctsio->scsi_status = msg_info->scsi.scsi_status; 726 ctsio->sense_len = msg_info->scsi.sense_len; 727 ctsio->sense_residual = msg_info->scsi.sense_residual; 728 ctsio->residual = msg_info->scsi.residual; 729 memcpy(&ctsio->sense_data, &msg_info->scsi.sense_data, 730 msg_info->scsi.sense_len); 731 ctl_enqueue_isc((union ctl_io *)ctsio); 732} 733 734static void 735ctl_isc_handler_finish_ser_only(struct ctl_softc *ctl_softc, 736 union ctl_ha_msg *msg_info) 737{ 738 struct ctl_scsiio *ctsio; 739 740 if (msg_info->hdr.serializing_sc == NULL) { 741 printf("%s: serializing_sc == NULL!\n", __func__); 742 /* XXX KDM now what? */ 743 return; 744 } 745 746 ctsio = &msg_info->hdr.serializing_sc->scsiio; 747 ctsio->io_hdr.msg_type = CTL_MSG_FINISH_IO; 748 ctl_enqueue_isc((union ctl_io *)ctsio); 749} 750 751void 752ctl_isc_announce_lun(struct ctl_lun *lun) 753{ 754 struct ctl_softc *softc = lun->ctl_softc; 755 union ctl_ha_msg *msg; 756 struct ctl_ha_msg_lun_pr_key pr_key; 757 int i, k; 758 759 if (softc->ha_link != CTL_HA_LINK_ONLINE) 760 return; 761 mtx_lock(&lun->lun_lock); 762 i = sizeof(msg->lun); 763 if (lun->lun_devid) 764 i += lun->lun_devid->len; 765 i += sizeof(pr_key) * lun->pr_key_count; 766alloc: 767 mtx_unlock(&lun->lun_lock); 768 msg = malloc(i, M_CTL, M_WAITOK); 769 mtx_lock(&lun->lun_lock); 770 k = sizeof(msg->lun); 771 if (lun->lun_devid) 772 k += lun->lun_devid->len; 773 k += sizeof(pr_key) * lun->pr_key_count; 774 if (i < k) { 775 free(msg, M_CTL); 776 i = k; 777 goto alloc; 778 } 779 bzero(&msg->lun, sizeof(msg->lun)); 780 msg->hdr.msg_type = CTL_MSG_LUN_SYNC; 781 msg->hdr.nexus.targ_lun = lun->lun; 782 msg->hdr.nexus.targ_mapped_lun = lun->lun; 783 msg->lun.flags = lun->flags; 784 msg->lun.pr_generation = lun->pr_generation; 785 msg->lun.pr_res_idx = lun->pr_res_idx; 786 msg->lun.pr_res_type = lun->pr_res_type; 787 msg->lun.pr_key_count = lun->pr_key_count; 788 i = 0; 789 if (lun->lun_devid) { 790 msg->lun.lun_devid_len = lun->lun_devid->len; 791 memcpy(&msg->lun.data[i], lun->lun_devid->data, 792 msg->lun.lun_devid_len); 793 i += msg->lun.lun_devid_len; 794 } 795 for (k = 0; k < CTL_MAX_INITIATORS; k++) { 796 if ((pr_key.pr_key = ctl_get_prkey(lun, k)) == 0) 797 continue; 798 pr_key.pr_iid = k; 799 memcpy(&msg->lun.data[i], &pr_key, sizeof(pr_key)); 800 i += sizeof(pr_key); 801 } 802 mtx_unlock(&lun->lun_lock); 803 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg->port, sizeof(msg->port) + i, 804 M_WAITOK); 805 free(msg, M_CTL); 806 807 if (lun->flags & CTL_LUN_PRIMARY_SC) { 808 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 809 ctl_isc_announce_mode(lun, -1, 810 lun->mode_pages.index[i].page_code & SMPH_PC_MASK, 811 lun->mode_pages.index[i].subpage); 812 } 813 } 814} 815 816void 817ctl_isc_announce_port(struct ctl_port *port) 818{ 819 struct ctl_softc *softc = port->ctl_softc; 820 union ctl_ha_msg *msg; 821 int i; 822 823 if (port->targ_port < softc->port_min || 824 port->targ_port >= softc->port_max || 825 softc->ha_link != CTL_HA_LINK_ONLINE) 826 return; 827 i = sizeof(msg->port) + strlen(port->port_name) + 1; 828 if (port->lun_map) 829 i += sizeof(uint32_t) * CTL_MAX_LUNS; 830 if (port->port_devid) 831 i += port->port_devid->len; 832 if (port->target_devid) 833 i += port->target_devid->len; 834 if (port->init_devid) 835 i += port->init_devid->len; 836 msg = malloc(i, M_CTL, M_WAITOK); 837 bzero(&msg->port, sizeof(msg->port)); 838 msg->hdr.msg_type = CTL_MSG_PORT_SYNC; 839 msg->hdr.nexus.targ_port = port->targ_port; 840 msg->port.port_type = port->port_type; 841 msg->port.physical_port = port->physical_port; 842 msg->port.virtual_port = port->virtual_port; 843 msg->port.status = port->status; 844 i = 0; 845 msg->port.name_len = sprintf(&msg->port.data[i], 846 "%d:%s", softc->ha_id, port->port_name) + 1; 847 i += msg->port.name_len; 848 if (port->lun_map) { 849 msg->port.lun_map_len = sizeof(uint32_t) * CTL_MAX_LUNS; 850 memcpy(&msg->port.data[i], port->lun_map, 851 msg->port.lun_map_len); 852 i += msg->port.lun_map_len; 853 } 854 if (port->port_devid) { 855 msg->port.port_devid_len = port->port_devid->len; 856 memcpy(&msg->port.data[i], port->port_devid->data, 857 msg->port.port_devid_len); 858 i += msg->port.port_devid_len; 859 } 860 if (port->target_devid) { 861 msg->port.target_devid_len = port->target_devid->len; 862 memcpy(&msg->port.data[i], port->target_devid->data, 863 msg->port.target_devid_len); 864 i += msg->port.target_devid_len; 865 } 866 if (port->init_devid) { 867 msg->port.init_devid_len = port->init_devid->len; 868 memcpy(&msg->port.data[i], port->init_devid->data, 869 msg->port.init_devid_len); 870 i += msg->port.init_devid_len; 871 } 872 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg->port, sizeof(msg->port) + i, 873 M_WAITOK); 874 free(msg, M_CTL); 875} 876 877void 878ctl_isc_announce_iid(struct ctl_port *port, int iid) 879{ 880 struct ctl_softc *softc = port->ctl_softc; 881 union ctl_ha_msg *msg; 882 int i, l; 883 884 if (port->targ_port < softc->port_min || 885 port->targ_port >= softc->port_max || 886 softc->ha_link != CTL_HA_LINK_ONLINE) 887 return; 888 mtx_lock(&softc->ctl_lock); 889 i = sizeof(msg->iid); 890 l = 0; 891 if (port->wwpn_iid[iid].name) 892 l = strlen(port->wwpn_iid[iid].name) + 1; 893 i += l; 894 msg = malloc(i, M_CTL, M_NOWAIT); 895 if (msg == NULL) { 896 mtx_unlock(&softc->ctl_lock); 897 return; 898 } 899 bzero(&msg->iid, sizeof(msg->iid)); 900 msg->hdr.msg_type = CTL_MSG_IID_SYNC; 901 msg->hdr.nexus.targ_port = port->targ_port; 902 msg->hdr.nexus.initid = iid; 903 msg->iid.in_use = port->wwpn_iid[iid].in_use; 904 msg->iid.name_len = l; 905 msg->iid.wwpn = port->wwpn_iid[iid].wwpn; 906 if (port->wwpn_iid[iid].name) 907 strlcpy(msg->iid.data, port->wwpn_iid[iid].name, l); 908 mtx_unlock(&softc->ctl_lock); 909 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg->iid, i, M_NOWAIT); 910 free(msg, M_CTL); 911} 912 913void 914ctl_isc_announce_mode(struct ctl_lun *lun, uint32_t initidx, 915 uint8_t page, uint8_t subpage) 916{ 917 struct ctl_softc *softc = lun->ctl_softc; 918 union ctl_ha_msg msg; 919 u_int i; 920 921 if (softc->ha_link != CTL_HA_LINK_ONLINE) 922 return; 923 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 924 if ((lun->mode_pages.index[i].page_code & SMPH_PC_MASK) == 925 page && lun->mode_pages.index[i].subpage == subpage) 926 break; 927 } 928 if (i == CTL_NUM_MODE_PAGES) 929 return; 930 931 /* Don't try to replicate pages not present on this device. */ 932 if (lun->mode_pages.index[i].page_data == NULL) 933 return; 934 935 bzero(&msg.mode, sizeof(msg.mode)); 936 msg.hdr.msg_type = CTL_MSG_MODE_SYNC; 937 msg.hdr.nexus.targ_port = initidx / CTL_MAX_INIT_PER_PORT; 938 msg.hdr.nexus.initid = initidx % CTL_MAX_INIT_PER_PORT; 939 msg.hdr.nexus.targ_lun = lun->lun; 940 msg.hdr.nexus.targ_mapped_lun = lun->lun; 941 msg.mode.page_code = page; 942 msg.mode.subpage = subpage; 943 msg.mode.page_len = lun->mode_pages.index[i].page_len; 944 memcpy(msg.mode.data, lun->mode_pages.index[i].page_data, 945 msg.mode.page_len); 946 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg.mode, sizeof(msg.mode), 947 M_WAITOK); 948} 949 950static void 951ctl_isc_ha_link_up(struct ctl_softc *softc) 952{ 953 struct ctl_port *port; 954 struct ctl_lun *lun; 955 union ctl_ha_msg msg; 956 int i; 957 958 /* Announce this node parameters to peer for validation. */ 959 msg.login.msg_type = CTL_MSG_LOGIN; 960 msg.login.version = CTL_HA_VERSION; 961 msg.login.ha_mode = softc->ha_mode; 962 msg.login.ha_id = softc->ha_id; 963 msg.login.max_luns = CTL_MAX_LUNS; 964 msg.login.max_ports = CTL_MAX_PORTS; 965 msg.login.max_init_per_port = CTL_MAX_INIT_PER_PORT; 966 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg.login, sizeof(msg.login), 967 M_WAITOK); 968 969 STAILQ_FOREACH(port, &softc->port_list, links) { 970 ctl_isc_announce_port(port); 971 for (i = 0; i < CTL_MAX_INIT_PER_PORT; i++) { 972 if (port->wwpn_iid[i].in_use) 973 ctl_isc_announce_iid(port, i); 974 } 975 } 976 STAILQ_FOREACH(lun, &softc->lun_list, links) 977 ctl_isc_announce_lun(lun); 978} 979 980static void 981ctl_isc_ha_link_down(struct ctl_softc *softc) 982{ 983 struct ctl_port *port; 984 struct ctl_lun *lun; 985 union ctl_io *io; 986 int i; 987 988 mtx_lock(&softc->ctl_lock); 989 STAILQ_FOREACH(lun, &softc->lun_list, links) { 990 mtx_lock(&lun->lun_lock); 991 if (lun->flags & CTL_LUN_PEER_SC_PRIMARY) { 992 lun->flags &= ~CTL_LUN_PEER_SC_PRIMARY; 993 ctl_est_ua_all(lun, -1, CTL_UA_ASYM_ACC_CHANGE); 994 } 995 mtx_unlock(&lun->lun_lock); 996 997 mtx_unlock(&softc->ctl_lock); 998 io = ctl_alloc_io(softc->othersc_pool); 999 mtx_lock(&softc->ctl_lock); 1000 ctl_zero_io(io); 1001 io->io_hdr.msg_type = CTL_MSG_FAILOVER; 1002 io->io_hdr.nexus.targ_mapped_lun = lun->lun; 1003 ctl_enqueue_isc(io); 1004 } 1005 1006 STAILQ_FOREACH(port, &softc->port_list, links) { 1007 if (port->targ_port >= softc->port_min && 1008 port->targ_port < softc->port_max) 1009 continue; 1010 port->status &= ~CTL_PORT_STATUS_ONLINE; 1011 for (i = 0; i < CTL_MAX_INIT_PER_PORT; i++) { 1012 port->wwpn_iid[i].in_use = 0; 1013 free(port->wwpn_iid[i].name, M_CTL); 1014 port->wwpn_iid[i].name = NULL; 1015 } 1016 } 1017 mtx_unlock(&softc->ctl_lock); 1018} 1019 1020static void 1021ctl_isc_ua(struct ctl_softc *softc, union ctl_ha_msg *msg, int len) 1022{ 1023 struct ctl_lun *lun; 1024 uint32_t iid = ctl_get_initindex(&msg->hdr.nexus); 1025 1026 mtx_lock(&softc->ctl_lock); 1027 if (msg->hdr.nexus.targ_lun < CTL_MAX_LUNS && 1028 (lun = softc->ctl_luns[msg->hdr.nexus.targ_mapped_lun]) != NULL) { 1029 mtx_lock(&lun->lun_lock); 1030 mtx_unlock(&softc->ctl_lock); 1031 if (msg->ua.ua_type == CTL_UA_THIN_PROV_THRES && 1032 msg->ua.ua_set) 1033 memcpy(lun->ua_tpt_info, msg->ua.ua_info, 8); 1034 if (msg->ua.ua_all) { 1035 if (msg->ua.ua_set) 1036 ctl_est_ua_all(lun, iid, msg->ua.ua_type); 1037 else 1038 ctl_clr_ua_all(lun, iid, msg->ua.ua_type); 1039 } else { 1040 if (msg->ua.ua_set) 1041 ctl_est_ua(lun, iid, msg->ua.ua_type); 1042 else 1043 ctl_clr_ua(lun, iid, msg->ua.ua_type); 1044 } 1045 mtx_unlock(&lun->lun_lock); 1046 } else 1047 mtx_unlock(&softc->ctl_lock); 1048} 1049 1050static void 1051ctl_isc_lun_sync(struct ctl_softc *softc, union ctl_ha_msg *msg, int len) 1052{ 1053 struct ctl_lun *lun; 1054 struct ctl_ha_msg_lun_pr_key pr_key; 1055 int i, k; 1056 ctl_lun_flags oflags; 1057 uint32_t targ_lun; 1058 1059 targ_lun = msg->hdr.nexus.targ_mapped_lun; 1060 mtx_lock(&softc->ctl_lock); 1061 if ((targ_lun >= CTL_MAX_LUNS) || 1062 ((lun = softc->ctl_luns[targ_lun]) == NULL)) { 1063 mtx_unlock(&softc->ctl_lock); 1064 return; 1065 } 1066 mtx_lock(&lun->lun_lock); 1067 mtx_unlock(&softc->ctl_lock); 1068 if (lun->flags & CTL_LUN_DISABLED) { 1069 mtx_unlock(&lun->lun_lock); 1070 return; 1071 } 1072 i = (lun->lun_devid != NULL) ? lun->lun_devid->len : 0; 1073 if (msg->lun.lun_devid_len != i || (i > 0 && 1074 memcmp(&msg->lun.data[0], lun->lun_devid->data, i) != 0)) { 1075 mtx_unlock(&lun->lun_lock); 1076 printf("%s: Received conflicting HA LUN %d\n", 1077 __func__, msg->hdr.nexus.targ_lun); 1078 return; 1079 } else { 1080 /* Record whether peer is primary. */ 1081 oflags = lun->flags; 1082 if ((msg->lun.flags & CTL_LUN_PRIMARY_SC) && 1083 (msg->lun.flags & CTL_LUN_DISABLED) == 0) 1084 lun->flags |= CTL_LUN_PEER_SC_PRIMARY; 1085 else 1086 lun->flags &= ~CTL_LUN_PEER_SC_PRIMARY; 1087 if (oflags != lun->flags) 1088 ctl_est_ua_all(lun, -1, CTL_UA_ASYM_ACC_CHANGE); 1089 1090 /* If peer is primary and we are not -- use data */ 1091 if ((lun->flags & CTL_LUN_PRIMARY_SC) == 0 && 1092 (lun->flags & CTL_LUN_PEER_SC_PRIMARY)) { 1093 lun->pr_generation = msg->lun.pr_generation; 1094 lun->pr_res_idx = msg->lun.pr_res_idx; 1095 lun->pr_res_type = msg->lun.pr_res_type; 1096 lun->pr_key_count = msg->lun.pr_key_count; 1097 for (k = 0; k < CTL_MAX_INITIATORS; k++) 1098 ctl_clr_prkey(lun, k); 1099 for (k = 0; k < msg->lun.pr_key_count; k++) { 1100 memcpy(&pr_key, &msg->lun.data[i], 1101 sizeof(pr_key)); 1102 ctl_alloc_prkey(lun, pr_key.pr_iid); 1103 ctl_set_prkey(lun, pr_key.pr_iid, 1104 pr_key.pr_key); 1105 i += sizeof(pr_key); 1106 } 1107 } 1108 1109 mtx_unlock(&lun->lun_lock); 1110 CTL_DEBUG_PRINT(("%s: Known LUN %d, peer is %s\n", 1111 __func__, msg->hdr.nexus.targ_lun, 1112 (msg->lun.flags & CTL_LUN_PRIMARY_SC) ? 1113 "primary" : "secondary")); 1114 1115 /* If we are primary but peer doesn't know -- notify */ 1116 if ((lun->flags & CTL_LUN_PRIMARY_SC) && 1117 (msg->lun.flags & CTL_LUN_PEER_SC_PRIMARY) == 0) 1118 ctl_isc_announce_lun(lun); 1119 } 1120} 1121 1122static void 1123ctl_isc_port_sync(struct ctl_softc *softc, union ctl_ha_msg *msg, int len) 1124{ 1125 struct ctl_port *port; 1126 struct ctl_lun *lun; 1127 int i, new; 1128 1129 port = softc->ctl_ports[msg->hdr.nexus.targ_port]; 1130 if (port == NULL) { 1131 CTL_DEBUG_PRINT(("%s: New port %d\n", __func__, 1132 msg->hdr.nexus.targ_port)); 1133 new = 1; 1134 port = malloc(sizeof(*port), M_CTL, M_WAITOK | M_ZERO); 1135 port->frontend = &ha_frontend; 1136 port->targ_port = msg->hdr.nexus.targ_port; 1137 port->fe_datamove = ctl_ha_datamove; 1138 port->fe_done = ctl_ha_done; 1139 } else if (port->frontend == &ha_frontend) { 1140 CTL_DEBUG_PRINT(("%s: Updated port %d\n", __func__, 1141 msg->hdr.nexus.targ_port)); 1142 new = 0; 1143 } else { 1144 printf("%s: Received conflicting HA port %d\n", 1145 __func__, msg->hdr.nexus.targ_port); 1146 return; 1147 } 1148 port->port_type = msg->port.port_type; 1149 port->physical_port = msg->port.physical_port; 1150 port->virtual_port = msg->port.virtual_port; 1151 port->status = msg->port.status; 1152 i = 0; 1153 free(port->port_name, M_CTL); 1154 port->port_name = strndup(&msg->port.data[i], msg->port.name_len, 1155 M_CTL); 1156 i += msg->port.name_len; 1157 if (msg->port.lun_map_len != 0) { 1158 if (port->lun_map == NULL) 1159 port->lun_map = malloc(sizeof(uint32_t) * CTL_MAX_LUNS, 1160 M_CTL, M_WAITOK); 1161 memcpy(port->lun_map, &msg->port.data[i], 1162 sizeof(uint32_t) * CTL_MAX_LUNS); 1163 i += msg->port.lun_map_len; 1164 } else { 1165 free(port->lun_map, M_CTL); 1166 port->lun_map = NULL; 1167 } 1168 if (msg->port.port_devid_len != 0) { 1169 if (port->port_devid == NULL || 1170 port->port_devid->len != msg->port.port_devid_len) { 1171 free(port->port_devid, M_CTL); 1172 port->port_devid = malloc(sizeof(struct ctl_devid) + 1173 msg->port.port_devid_len, M_CTL, M_WAITOK); 1174 } 1175 memcpy(port->port_devid->data, &msg->port.data[i], 1176 msg->port.port_devid_len); 1177 port->port_devid->len = msg->port.port_devid_len; 1178 i += msg->port.port_devid_len; 1179 } else { 1180 free(port->port_devid, M_CTL); 1181 port->port_devid = NULL; 1182 } 1183 if (msg->port.target_devid_len != 0) { 1184 if (port->target_devid == NULL || 1185 port->target_devid->len != msg->port.target_devid_len) { 1186 free(port->target_devid, M_CTL); 1187 port->target_devid = malloc(sizeof(struct ctl_devid) + 1188 msg->port.target_devid_len, M_CTL, M_WAITOK); 1189 } 1190 memcpy(port->target_devid->data, &msg->port.data[i], 1191 msg->port.target_devid_len); 1192 port->target_devid->len = msg->port.target_devid_len; 1193 i += msg->port.target_devid_len; 1194 } else { 1195 free(port->target_devid, M_CTL); 1196 port->target_devid = NULL; 1197 } 1198 if (msg->port.init_devid_len != 0) { 1199 if (port->init_devid == NULL || 1200 port->init_devid->len != msg->port.init_devid_len) { 1201 free(port->init_devid, M_CTL); 1202 port->init_devid = malloc(sizeof(struct ctl_devid) + 1203 msg->port.init_devid_len, M_CTL, M_WAITOK); 1204 } 1205 memcpy(port->init_devid->data, &msg->port.data[i], 1206 msg->port.init_devid_len); 1207 port->init_devid->len = msg->port.init_devid_len; 1208 i += msg->port.init_devid_len; 1209 } else { 1210 free(port->init_devid, M_CTL); 1211 port->init_devid = NULL; 1212 } 1213 if (new) { 1214 if (ctl_port_register(port) != 0) { 1215 printf("%s: ctl_port_register() failed with error\n", 1216 __func__); 1217 } 1218 } 1219 mtx_lock(&softc->ctl_lock); 1220 STAILQ_FOREACH(lun, &softc->lun_list, links) { 1221 if (ctl_lun_map_to_port(port, lun->lun) >= CTL_MAX_LUNS) 1222 continue; 1223 mtx_lock(&lun->lun_lock); 1224 ctl_est_ua_all(lun, -1, CTL_UA_INQ_CHANGE); 1225 mtx_unlock(&lun->lun_lock); 1226 } 1227 mtx_unlock(&softc->ctl_lock); 1228} 1229 1230static void 1231ctl_isc_iid_sync(struct ctl_softc *softc, union ctl_ha_msg *msg, int len) 1232{ 1233 struct ctl_port *port; 1234 int iid; 1235 1236 port = softc->ctl_ports[msg->hdr.nexus.targ_port]; 1237 if (port == NULL) { 1238 printf("%s: Received IID for unknown port %d\n", 1239 __func__, msg->hdr.nexus.targ_port); 1240 return; 1241 } 1242 iid = msg->hdr.nexus.initid; 1243 port->wwpn_iid[iid].in_use = msg->iid.in_use; 1244 port->wwpn_iid[iid].wwpn = msg->iid.wwpn; 1245 free(port->wwpn_iid[iid].name, M_CTL); 1246 if (msg->iid.name_len) { 1247 port->wwpn_iid[iid].name = strndup(&msg->iid.data[0], 1248 msg->iid.name_len, M_CTL); 1249 } else 1250 port->wwpn_iid[iid].name = NULL; 1251} 1252 1253static void 1254ctl_isc_login(struct ctl_softc *softc, union ctl_ha_msg *msg, int len) 1255{ 1256 1257 if (msg->login.version != CTL_HA_VERSION) { 1258 printf("CTL HA peers have different versions %d != %d\n", 1259 msg->login.version, CTL_HA_VERSION); 1260 ctl_ha_msg_abort(CTL_HA_CHAN_CTL); 1261 return; 1262 } 1263 if (msg->login.ha_mode != softc->ha_mode) { 1264 printf("CTL HA peers have different ha_mode %d != %d\n", 1265 msg->login.ha_mode, softc->ha_mode); 1266 ctl_ha_msg_abort(CTL_HA_CHAN_CTL); 1267 return; 1268 } 1269 if (msg->login.ha_id == softc->ha_id) { 1270 printf("CTL HA peers have same ha_id %d\n", msg->login.ha_id); 1271 ctl_ha_msg_abort(CTL_HA_CHAN_CTL); 1272 return; 1273 } 1274 if (msg->login.max_luns != CTL_MAX_LUNS || 1275 msg->login.max_ports != CTL_MAX_PORTS || 1276 msg->login.max_init_per_port != CTL_MAX_INIT_PER_PORT) { 1277 printf("CTL HA peers have different limits\n"); 1278 ctl_ha_msg_abort(CTL_HA_CHAN_CTL); 1279 return; 1280 } 1281} 1282 1283static void 1284ctl_isc_mode_sync(struct ctl_softc *softc, union ctl_ha_msg *msg, int len) 1285{ 1286 struct ctl_lun *lun; 1287 u_int i; 1288 uint32_t initidx, targ_lun; 1289 1290 targ_lun = msg->hdr.nexus.targ_mapped_lun; 1291 mtx_lock(&softc->ctl_lock); 1292 if ((targ_lun >= CTL_MAX_LUNS) || 1293 ((lun = softc->ctl_luns[targ_lun]) == NULL)) { 1294 mtx_unlock(&softc->ctl_lock); 1295 return; 1296 } 1297 mtx_lock(&lun->lun_lock); 1298 mtx_unlock(&softc->ctl_lock); 1299 if (lun->flags & CTL_LUN_DISABLED) { 1300 mtx_unlock(&lun->lun_lock); 1301 return; 1302 } 1303 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 1304 if ((lun->mode_pages.index[i].page_code & SMPH_PC_MASK) == 1305 msg->mode.page_code && 1306 lun->mode_pages.index[i].subpage == msg->mode.subpage) 1307 break; 1308 } 1309 if (i == CTL_NUM_MODE_PAGES) { 1310 mtx_unlock(&lun->lun_lock); 1311 return; 1312 } 1313 memcpy(lun->mode_pages.index[i].page_data, msg->mode.data, 1314 lun->mode_pages.index[i].page_len); 1315 initidx = ctl_get_initindex(&msg->hdr.nexus); 1316 if (initidx != -1) 1317 ctl_est_ua_all(lun, initidx, CTL_UA_MODE_CHANGE); 1318 mtx_unlock(&lun->lun_lock); 1319} 1320 1321/* 1322 * ISC (Inter Shelf Communication) event handler. Events from the HA 1323 * subsystem come in here. 1324 */ 1325static void 1326ctl_isc_event_handler(ctl_ha_channel channel, ctl_ha_event event, int param) 1327{ 1328 struct ctl_softc *softc = control_softc; 1329 union ctl_io *io; 1330 struct ctl_prio *presio; 1331 ctl_ha_status isc_status; 1332 1333 CTL_DEBUG_PRINT(("CTL: Isc Msg event %d\n", event)); 1334 if (event == CTL_HA_EVT_MSG_RECV) { 1335 union ctl_ha_msg *msg, msgbuf; 1336 1337 if (param > sizeof(msgbuf)) 1338 msg = malloc(param, M_CTL, M_WAITOK); 1339 else 1340 msg = &msgbuf; 1341 isc_status = ctl_ha_msg_recv(CTL_HA_CHAN_CTL, msg, param, 1342 M_WAITOK); 1343 if (isc_status != CTL_HA_STATUS_SUCCESS) { 1344 printf("%s: Error receiving message: %d\n", 1345 __func__, isc_status); 1346 if (msg != &msgbuf) 1347 free(msg, M_CTL); 1348 return; 1349 } 1350 1351 CTL_DEBUG_PRINT(("CTL: msg_type %d\n", msg->msg_type)); 1352 switch (msg->hdr.msg_type) { 1353 case CTL_MSG_SERIALIZE: 1354 io = ctl_alloc_io(softc->othersc_pool); 1355 ctl_zero_io(io); 1356 // populate ctsio from msg 1357 io->io_hdr.io_type = CTL_IO_SCSI; 1358 io->io_hdr.msg_type = CTL_MSG_SERIALIZE; 1359 io->io_hdr.original_sc = msg->hdr.original_sc; 1360 io->io_hdr.flags |= CTL_FLAG_FROM_OTHER_SC | 1361 CTL_FLAG_IO_ACTIVE; 1362 /* 1363 * If we're in serialization-only mode, we don't 1364 * want to go through full done processing. Thus 1365 * the COPY flag. 1366 * 1367 * XXX KDM add another flag that is more specific. 1368 */ 1369 if (softc->ha_mode != CTL_HA_MODE_XFER) 1370 io->io_hdr.flags |= CTL_FLAG_INT_COPY; 1371 io->io_hdr.nexus = msg->hdr.nexus; 1372#if 0 1373 printf("port %u, iid %u, lun %u\n", 1374 io->io_hdr.nexus.targ_port, 1375 io->io_hdr.nexus.initid, 1376 io->io_hdr.nexus.targ_lun); 1377#endif 1378 io->scsiio.tag_num = msg->scsi.tag_num; 1379 io->scsiio.tag_type = msg->scsi.tag_type; 1380#ifdef CTL_TIME_IO 1381 io->io_hdr.start_time = time_uptime; 1382 getbinuptime(&io->io_hdr.start_bt); 1383#endif /* CTL_TIME_IO */ 1384 io->scsiio.cdb_len = msg->scsi.cdb_len; 1385 memcpy(io->scsiio.cdb, msg->scsi.cdb, 1386 CTL_MAX_CDBLEN); 1387 if (softc->ha_mode == CTL_HA_MODE_XFER) { 1388 const struct ctl_cmd_entry *entry; 1389 1390 entry = ctl_get_cmd_entry(&io->scsiio, NULL); 1391 io->io_hdr.flags &= ~CTL_FLAG_DATA_MASK; 1392 io->io_hdr.flags |= 1393 entry->flags & CTL_FLAG_DATA_MASK; 1394 } 1395 ctl_enqueue_isc(io); 1396 break; 1397 1398 /* Performed on the Originating SC, XFER mode only */ 1399 case CTL_MSG_DATAMOVE: { 1400 struct ctl_sg_entry *sgl; 1401 int i, j; 1402 1403 io = msg->hdr.original_sc; 1404 if (io == NULL) { 1405 printf("%s: original_sc == NULL!\n", __func__); 1406 /* XXX KDM do something here */ 1407 break; 1408 } 1409 io->io_hdr.msg_type = CTL_MSG_DATAMOVE; 1410 io->io_hdr.flags |= CTL_FLAG_IO_ACTIVE; 1411 /* 1412 * Keep track of this, we need to send it back over 1413 * when the datamove is complete. 1414 */ 1415 io->io_hdr.serializing_sc = msg->hdr.serializing_sc; 1416 if (msg->hdr.status == CTL_SUCCESS) 1417 io->io_hdr.status = msg->hdr.status; 1418 1419 if (msg->dt.sg_sequence == 0) { 1420#ifdef CTL_TIME_IO 1421 getbinuptime(&io->io_hdr.dma_start_bt); 1422#endif 1423 i = msg->dt.kern_sg_entries + 1424 msg->dt.kern_data_len / 1425 CTL_HA_DATAMOVE_SEGMENT + 1; 1426 sgl = malloc(sizeof(*sgl) * i, M_CTL, 1427 M_WAITOK | M_ZERO); 1428 io->io_hdr.remote_sglist = sgl; 1429 io->io_hdr.local_sglist = 1430 &sgl[msg->dt.kern_sg_entries]; 1431 1432 io->scsiio.kern_data_ptr = (uint8_t *)sgl; 1433 1434 io->scsiio.kern_sg_entries = 1435 msg->dt.kern_sg_entries; 1436 io->scsiio.rem_sg_entries = 1437 msg->dt.kern_sg_entries; 1438 io->scsiio.kern_data_len = 1439 msg->dt.kern_data_len; 1440 io->scsiio.kern_total_len = 1441 msg->dt.kern_total_len; 1442 io->scsiio.kern_data_resid = 1443 msg->dt.kern_data_resid; 1444 io->scsiio.kern_rel_offset = 1445 msg->dt.kern_rel_offset; 1446 io->io_hdr.flags &= ~CTL_FLAG_BUS_ADDR; 1447 io->io_hdr.flags |= msg->dt.flags & 1448 CTL_FLAG_BUS_ADDR; 1449 } else 1450 sgl = (struct ctl_sg_entry *) 1451 io->scsiio.kern_data_ptr; 1452 1453 for (i = msg->dt.sent_sg_entries, j = 0; 1454 i < (msg->dt.sent_sg_entries + 1455 msg->dt.cur_sg_entries); i++, j++) { 1456 sgl[i].addr = msg->dt.sg_list[j].addr; 1457 sgl[i].len = msg->dt.sg_list[j].len; 1458 1459#if 0 1460 printf("%s: DATAMOVE: %p,%lu j=%d, i=%d\n", 1461 __func__, sgl[i].addr, sgl[i].len, j, i); 1462#endif 1463 } 1464 1465 /* 1466 * If this is the last piece of the I/O, we've got 1467 * the full S/G list. Queue processing in the thread. 1468 * Otherwise wait for the next piece. 1469 */ 1470 if (msg->dt.sg_last != 0) 1471 ctl_enqueue_isc(io); 1472 break; 1473 } 1474 /* Performed on the Serializing (primary) SC, XFER mode only */ 1475 case CTL_MSG_DATAMOVE_DONE: { 1476 if (msg->hdr.serializing_sc == NULL) { 1477 printf("%s: serializing_sc == NULL!\n", 1478 __func__); 1479 /* XXX KDM now what? */ 1480 break; 1481 } 1482 /* 1483 * We grab the sense information here in case 1484 * there was a failure, so we can return status 1485 * back to the initiator. 1486 */ 1487 io = msg->hdr.serializing_sc; 1488 io->io_hdr.msg_type = CTL_MSG_DATAMOVE_DONE; 1489 io->io_hdr.flags &= ~CTL_FLAG_DMA_INPROG; 1490 io->io_hdr.flags |= CTL_FLAG_IO_ACTIVE; 1491 io->io_hdr.port_status = msg->scsi.fetd_status; 1492 io->scsiio.residual = msg->scsi.residual; 1493 if (msg->hdr.status != CTL_STATUS_NONE) { 1494 io->io_hdr.status = msg->hdr.status; 1495 io->scsiio.scsi_status = msg->scsi.scsi_status; 1496 io->scsiio.sense_len = msg->scsi.sense_len; 1497 io->scsiio.sense_residual =msg->scsi.sense_residual; 1498 memcpy(&io->scsiio.sense_data, 1499 &msg->scsi.sense_data, 1500 msg->scsi.sense_len); 1501 if (msg->hdr.status == CTL_SUCCESS) 1502 io->io_hdr.flags |= CTL_FLAG_STATUS_SENT; 1503 } 1504 ctl_enqueue_isc(io); 1505 break; 1506 } 1507 1508 /* Preformed on Originating SC, SER_ONLY mode */ 1509 case CTL_MSG_R2R: 1510 io = msg->hdr.original_sc; 1511 if (io == NULL) { 1512 printf("%s: original_sc == NULL!\n", 1513 __func__); 1514 break; 1515 } 1516 io->io_hdr.flags |= CTL_FLAG_IO_ACTIVE; 1517 io->io_hdr.msg_type = CTL_MSG_R2R; 1518 io->io_hdr.serializing_sc = msg->hdr.serializing_sc; 1519 ctl_enqueue_isc(io); 1520 break; 1521 1522 /* 1523 * Performed on Serializing(i.e. primary SC) SC in SER_ONLY 1524 * mode. 1525 * Performed on the Originating (i.e. secondary) SC in XFER 1526 * mode 1527 */ 1528 case CTL_MSG_FINISH_IO: 1529 if (softc->ha_mode == CTL_HA_MODE_XFER) 1530 ctl_isc_handler_finish_xfer(softc, msg); 1531 else 1532 ctl_isc_handler_finish_ser_only(softc, msg); 1533 break; 1534 1535 /* Preformed on Originating SC */ 1536 case CTL_MSG_BAD_JUJU: 1537 io = msg->hdr.original_sc; 1538 if (io == NULL) { 1539 printf("%s: Bad JUJU!, original_sc is NULL!\n", 1540 __func__); 1541 break; 1542 } 1543 ctl_copy_sense_data(msg, io); 1544 /* 1545 * IO should have already been cleaned up on other 1546 * SC so clear this flag so we won't send a message 1547 * back to finish the IO there. 1548 */ 1549 io->io_hdr.flags &= ~CTL_FLAG_SENT_2OTHER_SC; 1550 io->io_hdr.flags |= CTL_FLAG_IO_ACTIVE; 1551 1552 /* io = msg->hdr.serializing_sc; */ 1553 io->io_hdr.msg_type = CTL_MSG_BAD_JUJU; 1554 ctl_enqueue_isc(io); 1555 break; 1556 1557 /* Handle resets sent from the other side */ 1558 case CTL_MSG_MANAGE_TASKS: { 1559 struct ctl_taskio *taskio; 1560 taskio = (struct ctl_taskio *)ctl_alloc_io( 1561 softc->othersc_pool); 1562 ctl_zero_io((union ctl_io *)taskio); 1563 taskio->io_hdr.io_type = CTL_IO_TASK; 1564 taskio->io_hdr.flags |= CTL_FLAG_FROM_OTHER_SC; 1565 taskio->io_hdr.nexus = msg->hdr.nexus; 1566 taskio->task_action = msg->task.task_action; 1567 taskio->tag_num = msg->task.tag_num; 1568 taskio->tag_type = msg->task.tag_type; 1569#ifdef CTL_TIME_IO 1570 taskio->io_hdr.start_time = time_uptime; 1571 getbinuptime(&taskio->io_hdr.start_bt); 1572#endif /* CTL_TIME_IO */ 1573 ctl_run_task((union ctl_io *)taskio); 1574 break; 1575 } 1576 /* Persistent Reserve action which needs attention */ 1577 case CTL_MSG_PERS_ACTION: 1578 presio = (struct ctl_prio *)ctl_alloc_io( 1579 softc->othersc_pool); 1580 ctl_zero_io((union ctl_io *)presio); 1581 presio->io_hdr.msg_type = CTL_MSG_PERS_ACTION; 1582 presio->io_hdr.flags |= CTL_FLAG_FROM_OTHER_SC; 1583 presio->io_hdr.nexus = msg->hdr.nexus; 1584 presio->pr_msg = msg->pr; 1585 ctl_enqueue_isc((union ctl_io *)presio); 1586 break; 1587 case CTL_MSG_UA: 1588 ctl_isc_ua(softc, msg, param); 1589 break; 1590 case CTL_MSG_PORT_SYNC: 1591 ctl_isc_port_sync(softc, msg, param); 1592 break; 1593 case CTL_MSG_LUN_SYNC: 1594 ctl_isc_lun_sync(softc, msg, param); 1595 break; 1596 case CTL_MSG_IID_SYNC: 1597 ctl_isc_iid_sync(softc, msg, param); 1598 break; 1599 case CTL_MSG_LOGIN: 1600 ctl_isc_login(softc, msg, param); 1601 break; 1602 case CTL_MSG_MODE_SYNC: 1603 ctl_isc_mode_sync(softc, msg, param); 1604 break; 1605 default: 1606 printf("Received HA message of unknown type %d\n", 1607 msg->hdr.msg_type); 1608 ctl_ha_msg_abort(CTL_HA_CHAN_CTL); 1609 break; 1610 } 1611 if (msg != &msgbuf) 1612 free(msg, M_CTL); 1613 } else if (event == CTL_HA_EVT_LINK_CHANGE) { 1614 printf("CTL: HA link status changed from %d to %d\n", 1615 softc->ha_link, param); 1616 if (param == softc->ha_link) 1617 return; 1618 if (softc->ha_link == CTL_HA_LINK_ONLINE) { 1619 softc->ha_link = param; 1620 ctl_isc_ha_link_down(softc); 1621 } else { 1622 softc->ha_link = param; 1623 if (softc->ha_link == CTL_HA_LINK_ONLINE) 1624 ctl_isc_ha_link_up(softc); 1625 } 1626 return; 1627 } else { 1628 printf("ctl_isc_event_handler: Unknown event %d\n", event); 1629 return; 1630 } 1631} 1632 1633static void 1634ctl_copy_sense_data(union ctl_ha_msg *src, union ctl_io *dest) 1635{ 1636 1637 memcpy(&dest->scsiio.sense_data, &src->scsi.sense_data, 1638 src->scsi.sense_len); 1639 dest->scsiio.scsi_status = src->scsi.scsi_status; 1640 dest->scsiio.sense_len = src->scsi.sense_len; 1641 dest->io_hdr.status = src->hdr.status; 1642} 1643 1644static void 1645ctl_copy_sense_data_back(union ctl_io *src, union ctl_ha_msg *dest) 1646{ 1647 1648 memcpy(&dest->scsi.sense_data, &src->scsiio.sense_data, 1649 src->scsiio.sense_len); 1650 dest->scsi.scsi_status = src->scsiio.scsi_status; 1651 dest->scsi.sense_len = src->scsiio.sense_len; 1652 dest->hdr.status = src->io_hdr.status; 1653} 1654 1655void 1656ctl_est_ua(struct ctl_lun *lun, uint32_t initidx, ctl_ua_type ua) 1657{ 1658 struct ctl_softc *softc = lun->ctl_softc; 1659 ctl_ua_type *pu; 1660 1661 if (initidx < softc->init_min || initidx >= softc->init_max) 1662 return; 1663 mtx_assert(&lun->lun_lock, MA_OWNED); 1664 pu = lun->pending_ua[initidx / CTL_MAX_INIT_PER_PORT]; 1665 if (pu == NULL) 1666 return; 1667 pu[initidx % CTL_MAX_INIT_PER_PORT] |= ua; 1668} 1669 1670void 1671ctl_est_ua_port(struct ctl_lun *lun, int port, uint32_t except, ctl_ua_type ua) 1672{ 1673 int i; 1674 1675 mtx_assert(&lun->lun_lock, MA_OWNED); 1676 if (lun->pending_ua[port] == NULL) 1677 return; 1678 for (i = 0; i < CTL_MAX_INIT_PER_PORT; i++) { 1679 if (port * CTL_MAX_INIT_PER_PORT + i == except) 1680 continue; 1681 lun->pending_ua[port][i] |= ua; 1682 } 1683} 1684 1685void 1686ctl_est_ua_all(struct ctl_lun *lun, uint32_t except, ctl_ua_type ua) 1687{ 1688 struct ctl_softc *softc = lun->ctl_softc; 1689 int i; 1690 1691 mtx_assert(&lun->lun_lock, MA_OWNED); 1692 for (i = softc->port_min; i < softc->port_max; i++) 1693 ctl_est_ua_port(lun, i, except, ua); 1694} 1695 1696void 1697ctl_clr_ua(struct ctl_lun *lun, uint32_t initidx, ctl_ua_type ua) 1698{ 1699 struct ctl_softc *softc = lun->ctl_softc; 1700 ctl_ua_type *pu; 1701 1702 if (initidx < softc->init_min || initidx >= softc->init_max) 1703 return; 1704 mtx_assert(&lun->lun_lock, MA_OWNED); 1705 pu = lun->pending_ua[initidx / CTL_MAX_INIT_PER_PORT]; 1706 if (pu == NULL) 1707 return; 1708 pu[initidx % CTL_MAX_INIT_PER_PORT] &= ~ua; 1709} 1710 1711void 1712ctl_clr_ua_all(struct ctl_lun *lun, uint32_t except, ctl_ua_type ua) 1713{ 1714 struct ctl_softc *softc = lun->ctl_softc; 1715 int i, j; 1716 1717 mtx_assert(&lun->lun_lock, MA_OWNED); 1718 for (i = softc->port_min; i < softc->port_max; i++) { 1719 if (lun->pending_ua[i] == NULL) 1720 continue; 1721 for (j = 0; j < CTL_MAX_INIT_PER_PORT; j++) { 1722 if (i * CTL_MAX_INIT_PER_PORT + j == except) 1723 continue; 1724 lun->pending_ua[i][j] &= ~ua; 1725 } 1726 } 1727} 1728 1729void 1730ctl_clr_ua_allluns(struct ctl_softc *ctl_softc, uint32_t initidx, 1731 ctl_ua_type ua_type) 1732{ 1733 struct ctl_lun *lun; 1734 1735 mtx_assert(&ctl_softc->ctl_lock, MA_OWNED); 1736 STAILQ_FOREACH(lun, &ctl_softc->lun_list, links) { 1737 mtx_lock(&lun->lun_lock); 1738 ctl_clr_ua(lun, initidx, ua_type); 1739 mtx_unlock(&lun->lun_lock); 1740 } 1741} 1742 1743static int 1744ctl_ha_role_sysctl(SYSCTL_HANDLER_ARGS) 1745{ 1746 struct ctl_softc *softc = (struct ctl_softc *)arg1; 1747 struct ctl_lun *lun; 1748 struct ctl_lun_req ireq; 1749 int error, value; 1750 1751 value = (softc->flags & CTL_FLAG_ACTIVE_SHELF) ? 0 : 1; 1752 error = sysctl_handle_int(oidp, &value, 0, req); 1753 if ((error != 0) || (req->newptr == NULL)) 1754 return (error); 1755 1756 mtx_lock(&softc->ctl_lock); 1757 if (value == 0) 1758 softc->flags |= CTL_FLAG_ACTIVE_SHELF; 1759 else 1760 softc->flags &= ~CTL_FLAG_ACTIVE_SHELF; 1761 STAILQ_FOREACH(lun, &softc->lun_list, links) { 1762 mtx_unlock(&softc->ctl_lock); 1763 bzero(&ireq, sizeof(ireq)); 1764 ireq.reqtype = CTL_LUNREQ_MODIFY; 1765 ireq.reqdata.modify.lun_id = lun->lun; 1766 lun->backend->ioctl(NULL, CTL_LUN_REQ, (caddr_t)&ireq, 0, 1767 curthread); 1768 if (ireq.status != CTL_LUN_OK) { 1769 printf("%s: CTL_LUNREQ_MODIFY returned %d '%s'\n", 1770 __func__, ireq.status, ireq.error_str); 1771 } 1772 mtx_lock(&softc->ctl_lock); 1773 } 1774 mtx_unlock(&softc->ctl_lock); 1775 return (0); 1776} 1777 1778static int 1779ctl_init(void) 1780{ 1781 struct make_dev_args args; 1782 struct ctl_softc *softc; 1783 void *other_pool; 1784 int i, error; 1785 1786 softc = control_softc = malloc(sizeof(*control_softc), M_DEVBUF, 1787 M_WAITOK | M_ZERO); 1788 1789 make_dev_args_init(&args); 1790 args.mda_devsw = &ctl_cdevsw; 1791 args.mda_uid = UID_ROOT; 1792 args.mda_gid = GID_OPERATOR; 1793 args.mda_mode = 0600; 1794 args.mda_si_drv1 = softc; 1795 error = make_dev_s(&args, &softc->dev, "cam/ctl"); 1796 if (error != 0) { 1797 free(control_softc, M_DEVBUF); 1798 return (error); 1799 } 1800 1801 sysctl_ctx_init(&softc->sysctl_ctx); 1802 softc->sysctl_tree = SYSCTL_ADD_NODE(&softc->sysctl_ctx, 1803 SYSCTL_STATIC_CHILDREN(_kern_cam), OID_AUTO, "ctl", 1804 CTLFLAG_RD, 0, "CAM Target Layer"); 1805 1806 if (softc->sysctl_tree == NULL) { 1807 printf("%s: unable to allocate sysctl tree\n", __func__); 1808 destroy_dev(softc->dev); 1809 free(control_softc, M_DEVBUF); 1810 control_softc = NULL; 1811 return (ENOMEM); 1812 } 1813 1814 mtx_init(&softc->ctl_lock, "CTL mutex", NULL, MTX_DEF); 1815 softc->io_zone = uma_zcreate("CTL IO", sizeof(union ctl_io), 1816 NULL, NULL, NULL, NULL, UMA_ALIGN_PTR, 0); 1817 softc->flags = 0; 1818 1819 SYSCTL_ADD_INT(&softc->sysctl_ctx, SYSCTL_CHILDREN(softc->sysctl_tree), 1820 OID_AUTO, "ha_mode", CTLFLAG_RDTUN, (int *)&softc->ha_mode, 0, 1821 "HA mode (0 - act/stby, 1 - serialize only, 2 - xfer)"); 1822 1823 /* 1824 * In Copan's HA scheme, the "master" and "slave" roles are 1825 * figured out through the slot the controller is in. Although it 1826 * is an active/active system, someone has to be in charge. 1827 */ 1828 SYSCTL_ADD_INT(&softc->sysctl_ctx, SYSCTL_CHILDREN(softc->sysctl_tree), 1829 OID_AUTO, "ha_id", CTLFLAG_RDTUN, &softc->ha_id, 0, 1830 "HA head ID (0 - no HA)"); 1831 if (softc->ha_id == 0 || softc->ha_id > NUM_HA_SHELVES) { 1832 softc->flags |= CTL_FLAG_ACTIVE_SHELF; 1833 softc->is_single = 1; 1834 softc->port_cnt = CTL_MAX_PORTS; 1835 softc->port_min = 0; 1836 } else { 1837 softc->port_cnt = CTL_MAX_PORTS / NUM_HA_SHELVES; 1838 softc->port_min = (softc->ha_id - 1) * softc->port_cnt; 1839 } 1840 softc->port_max = softc->port_min + softc->port_cnt; 1841 softc->init_min = softc->port_min * CTL_MAX_INIT_PER_PORT; 1842 softc->init_max = softc->port_max * CTL_MAX_INIT_PER_PORT; 1843 1844 SYSCTL_ADD_INT(&softc->sysctl_ctx, SYSCTL_CHILDREN(softc->sysctl_tree), 1845 OID_AUTO, "ha_link", CTLFLAG_RD, (int *)&softc->ha_link, 0, 1846 "HA link state (0 - offline, 1 - unknown, 2 - online)"); 1847 1848 STAILQ_INIT(&softc->lun_list); 1849 STAILQ_INIT(&softc->pending_lun_queue); 1850 STAILQ_INIT(&softc->fe_list); 1851 STAILQ_INIT(&softc->port_list); 1852 STAILQ_INIT(&softc->be_list); 1853 ctl_tpc_init(softc); 1854 1855 if (ctl_pool_create(softc, "othersc", CTL_POOL_ENTRIES_OTHER_SC, 1856 &other_pool) != 0) 1857 { 1858 printf("ctl: can't allocate %d entry other SC pool, " 1859 "exiting\n", CTL_POOL_ENTRIES_OTHER_SC); 1860 return (ENOMEM); 1861 } 1862 softc->othersc_pool = other_pool; 1863 1864 if (worker_threads <= 0) 1865 worker_threads = max(1, mp_ncpus / 4); 1866 if (worker_threads > CTL_MAX_THREADS) 1867 worker_threads = CTL_MAX_THREADS; 1868 1869 for (i = 0; i < worker_threads; i++) { 1870 struct ctl_thread *thr = &softc->threads[i]; 1871 1872 mtx_init(&thr->queue_lock, "CTL queue mutex", NULL, MTX_DEF); 1873 thr->ctl_softc = softc; 1874 STAILQ_INIT(&thr->incoming_queue); 1875 STAILQ_INIT(&thr->rtr_queue); 1876 STAILQ_INIT(&thr->done_queue); 1877 STAILQ_INIT(&thr->isc_queue); 1878 1879 error = kproc_kthread_add(ctl_work_thread, thr, 1880 &softc->ctl_proc, &thr->thread, 0, 0, "ctl", "work%d", i); 1881 if (error != 0) { 1882 printf("error creating CTL work thread!\n"); 1883 ctl_pool_free(other_pool); 1884 return (error); 1885 } 1886 } 1887 error = kproc_kthread_add(ctl_lun_thread, softc, 1888 &softc->ctl_proc, NULL, 0, 0, "ctl", "lun"); 1889 if (error != 0) { 1890 printf("error creating CTL lun thread!\n"); 1891 ctl_pool_free(other_pool); 1892 return (error); 1893 } 1894 error = kproc_kthread_add(ctl_thresh_thread, softc, 1895 &softc->ctl_proc, NULL, 0, 0, "ctl", "thresh"); 1896 if (error != 0) { 1897 printf("error creating CTL threshold thread!\n"); 1898 ctl_pool_free(other_pool); 1899 return (error); 1900 } 1901 1902 SYSCTL_ADD_PROC(&softc->sysctl_ctx,SYSCTL_CHILDREN(softc->sysctl_tree), 1903 OID_AUTO, "ha_role", CTLTYPE_INT | CTLFLAG_RWTUN, 1904 softc, 0, ctl_ha_role_sysctl, "I", "HA role for this head"); 1905 1906 if (softc->is_single == 0) { 1907 ctl_frontend_register(&ha_frontend); 1908 if (ctl_ha_msg_init(softc) != CTL_HA_STATUS_SUCCESS) { 1909 printf("ctl_init: ctl_ha_msg_init failed.\n"); 1910 softc->is_single = 1; 1911 } else 1912 if (ctl_ha_msg_register(CTL_HA_CHAN_CTL, ctl_isc_event_handler) 1913 != CTL_HA_STATUS_SUCCESS) { 1914 printf("ctl_init: ctl_ha_msg_register failed.\n"); 1915 softc->is_single = 1; 1916 } 1917 } 1918 return (0); 1919} 1920 1921void 1922ctl_shutdown(void) 1923{ 1924 struct ctl_softc *softc = control_softc; 1925 struct ctl_lun *lun, *next_lun; 1926 1927 if (softc->is_single == 0) { 1928 ctl_ha_msg_shutdown(softc); 1929 if (ctl_ha_msg_deregister(CTL_HA_CHAN_CTL) 1930 != CTL_HA_STATUS_SUCCESS) 1931 printf("%s: ctl_ha_msg_deregister failed.\n", __func__); 1932 if (ctl_ha_msg_destroy(softc) != CTL_HA_STATUS_SUCCESS) 1933 printf("%s: ctl_ha_msg_destroy failed.\n", __func__); 1934 ctl_frontend_deregister(&ha_frontend); 1935 } 1936 1937 mtx_lock(&softc->ctl_lock); 1938 1939 STAILQ_FOREACH_SAFE(lun, &softc->lun_list, links, next_lun) 1940 ctl_free_lun(lun); 1941 1942 mtx_unlock(&softc->ctl_lock); 1943 1944#if 0 1945 ctl_shutdown_thread(softc->work_thread); 1946 mtx_destroy(&softc->queue_lock); 1947#endif 1948 1949 ctl_tpc_shutdown(softc); 1950 uma_zdestroy(softc->io_zone); 1951 mtx_destroy(&softc->ctl_lock); 1952 1953 destroy_dev(softc->dev); 1954 1955 sysctl_ctx_free(&softc->sysctl_ctx); 1956 1957 free(control_softc, M_DEVBUF); 1958 control_softc = NULL; 1959} 1960 1961static int 1962ctl_module_event_handler(module_t mod, int what, void *arg) 1963{ 1964 1965 switch (what) { 1966 case MOD_LOAD: 1967 return (ctl_init()); 1968 case MOD_UNLOAD: 1969 return (EBUSY); 1970 default: 1971 return (EOPNOTSUPP); 1972 } 1973} 1974 1975/* 1976 * XXX KDM should we do some access checks here? Bump a reference count to 1977 * prevent a CTL module from being unloaded while someone has it open? 1978 */ 1979static int 1980ctl_open(struct cdev *dev, int flags, int fmt, struct thread *td) 1981{ 1982 return (0); 1983} 1984 1985static int 1986ctl_close(struct cdev *dev, int flags, int fmt, struct thread *td) 1987{ 1988 return (0); 1989} 1990 1991/* 1992 * Remove an initiator by port number and initiator ID. 1993 * Returns 0 for success, -1 for failure. 1994 */ 1995int 1996ctl_remove_initiator(struct ctl_port *port, int iid) 1997{ 1998 struct ctl_softc *softc = port->ctl_softc; 1999 2000 mtx_assert(&softc->ctl_lock, MA_NOTOWNED); 2001 2002 if (iid > CTL_MAX_INIT_PER_PORT) { 2003 printf("%s: initiator ID %u > maximun %u!\n", 2004 __func__, iid, CTL_MAX_INIT_PER_PORT); 2005 return (-1); 2006 } 2007 2008 mtx_lock(&softc->ctl_lock); 2009 port->wwpn_iid[iid].in_use--; 2010 port->wwpn_iid[iid].last_use = time_uptime; 2011 mtx_unlock(&softc->ctl_lock); 2012 ctl_isc_announce_iid(port, iid); 2013 2014 return (0); 2015} 2016 2017/* 2018 * Add an initiator to the initiator map. 2019 * Returns iid for success, < 0 for failure. 2020 */ 2021int 2022ctl_add_initiator(struct ctl_port *port, int iid, uint64_t wwpn, char *name) 2023{ 2024 struct ctl_softc *softc = port->ctl_softc; 2025 time_t best_time; 2026 int i, best; 2027 2028 mtx_assert(&softc->ctl_lock, MA_NOTOWNED); 2029 2030 if (iid >= CTL_MAX_INIT_PER_PORT) { 2031 printf("%s: WWPN %#jx initiator ID %u > maximum %u!\n", 2032 __func__, wwpn, iid, CTL_MAX_INIT_PER_PORT); 2033 free(name, M_CTL); 2034 return (-1); 2035 } 2036 2037 mtx_lock(&softc->ctl_lock); 2038 2039 if (iid < 0 && (wwpn != 0 || name != NULL)) { 2040 for (i = 0; i < CTL_MAX_INIT_PER_PORT; i++) { 2041 if (wwpn != 0 && wwpn == port->wwpn_iid[i].wwpn) { 2042 iid = i; 2043 break; 2044 } 2045 if (name != NULL && port->wwpn_iid[i].name != NULL && 2046 strcmp(name, port->wwpn_iid[i].name) == 0) { 2047 iid = i; 2048 break; 2049 } 2050 } 2051 } 2052 2053 if (iid < 0) { 2054 for (i = 0; i < CTL_MAX_INIT_PER_PORT; i++) { 2055 if (port->wwpn_iid[i].in_use == 0 && 2056 port->wwpn_iid[i].wwpn == 0 && 2057 port->wwpn_iid[i].name == NULL) { 2058 iid = i; 2059 break; 2060 } 2061 } 2062 } 2063 2064 if (iid < 0) { 2065 best = -1; 2066 best_time = INT32_MAX; 2067 for (i = 0; i < CTL_MAX_INIT_PER_PORT; i++) { 2068 if (port->wwpn_iid[i].in_use == 0) { 2069 if (port->wwpn_iid[i].last_use < best_time) { 2070 best = i; 2071 best_time = port->wwpn_iid[i].last_use; 2072 } 2073 } 2074 } 2075 iid = best; 2076 } 2077 2078 if (iid < 0) { 2079 mtx_unlock(&softc->ctl_lock); 2080 free(name, M_CTL); 2081 return (-2); 2082 } 2083 2084 if (port->wwpn_iid[iid].in_use > 0 && (wwpn != 0 || name != NULL)) { 2085 /* 2086 * This is not an error yet. 2087 */ 2088 if (wwpn != 0 && wwpn == port->wwpn_iid[iid].wwpn) { 2089#if 0 2090 printf("%s: port %d iid %u WWPN %#jx arrived" 2091 " again\n", __func__, port->targ_port, 2092 iid, (uintmax_t)wwpn); 2093#endif 2094 goto take; 2095 } 2096 if (name != NULL && port->wwpn_iid[iid].name != NULL && 2097 strcmp(name, port->wwpn_iid[iid].name) == 0) { 2098#if 0 2099 printf("%s: port %d iid %u name '%s' arrived" 2100 " again\n", __func__, port->targ_port, 2101 iid, name); 2102#endif 2103 goto take; 2104 } 2105 2106 /* 2107 * This is an error, but what do we do about it? The 2108 * driver is telling us we have a new WWPN for this 2109 * initiator ID, so we pretty much need to use it. 2110 */ 2111 printf("%s: port %d iid %u WWPN %#jx '%s' arrived," 2112 " but WWPN %#jx '%s' is still at that address\n", 2113 __func__, port->targ_port, iid, wwpn, name, 2114 (uintmax_t)port->wwpn_iid[iid].wwpn, 2115 port->wwpn_iid[iid].name); 2116 2117 /* 2118 * XXX KDM clear have_ca and ua_pending on each LUN for 2119 * this initiator. 2120 */ 2121 } 2122take: 2123 free(port->wwpn_iid[iid].name, M_CTL); 2124 port->wwpn_iid[iid].name = name; 2125 port->wwpn_iid[iid].wwpn = wwpn; 2126 port->wwpn_iid[iid].in_use++; 2127 mtx_unlock(&softc->ctl_lock); 2128 ctl_isc_announce_iid(port, iid); 2129 2130 return (iid); 2131} 2132 2133static int 2134ctl_create_iid(struct ctl_port *port, int iid, uint8_t *buf) 2135{ 2136 int len; 2137 2138 switch (port->port_type) { 2139 case CTL_PORT_FC: 2140 { 2141 struct scsi_transportid_fcp *id = 2142 (struct scsi_transportid_fcp *)buf; 2143 if (port->wwpn_iid[iid].wwpn == 0) 2144 return (0); 2145 memset(id, 0, sizeof(*id)); 2146 id->format_protocol = SCSI_PROTO_FC; 2147 scsi_u64to8b(port->wwpn_iid[iid].wwpn, id->n_port_name); 2148 return (sizeof(*id)); 2149 } 2150 case CTL_PORT_ISCSI: 2151 { 2152 struct scsi_transportid_iscsi_port *id = 2153 (struct scsi_transportid_iscsi_port *)buf; 2154 if (port->wwpn_iid[iid].name == NULL) 2155 return (0); 2156 memset(id, 0, 256); 2157 id->format_protocol = SCSI_TRN_ISCSI_FORMAT_PORT | 2158 SCSI_PROTO_ISCSI; 2159 len = strlcpy(id->iscsi_name, port->wwpn_iid[iid].name, 252) + 1; 2160 len = roundup2(min(len, 252), 4); 2161 scsi_ulto2b(len, id->additional_length); 2162 return (sizeof(*id) + len); 2163 } 2164 case CTL_PORT_SAS: 2165 { 2166 struct scsi_transportid_sas *id = 2167 (struct scsi_transportid_sas *)buf; 2168 if (port->wwpn_iid[iid].wwpn == 0) 2169 return (0); 2170 memset(id, 0, sizeof(*id)); 2171 id->format_protocol = SCSI_PROTO_SAS; 2172 scsi_u64to8b(port->wwpn_iid[iid].wwpn, id->sas_address); 2173 return (sizeof(*id)); 2174 } 2175 default: 2176 { 2177 struct scsi_transportid_spi *id = 2178 (struct scsi_transportid_spi *)buf; 2179 memset(id, 0, sizeof(*id)); 2180 id->format_protocol = SCSI_PROTO_SPI; 2181 scsi_ulto2b(iid, id->scsi_addr); 2182 scsi_ulto2b(port->targ_port, id->rel_trgt_port_id); 2183 return (sizeof(*id)); 2184 } 2185 } 2186} 2187 2188/* 2189 * Serialize a command that went down the "wrong" side, and so was sent to 2190 * this controller for execution. The logic is a little different than the 2191 * standard case in ctl_scsiio_precheck(). Errors in this case need to get 2192 * sent back to the other side, but in the success case, we execute the 2193 * command on this side (XFER mode) or tell the other side to execute it 2194 * (SER_ONLY mode). 2195 */ 2196static int 2197ctl_serialize_other_sc_cmd(struct ctl_scsiio *ctsio) 2198{ 2199 struct ctl_softc *softc = control_softc; 2200 union ctl_ha_msg msg_info; 2201 struct ctl_port *port; 2202 struct ctl_lun *lun; 2203 const struct ctl_cmd_entry *entry; 2204 int retval = 0; 2205 uint32_t targ_lun; 2206 2207 targ_lun = ctsio->io_hdr.nexus.targ_mapped_lun; 2208 mtx_lock(&softc->ctl_lock); 2209 2210 /* Make sure that we know about this port. */ 2211 port = ctl_io_port(&ctsio->io_hdr); 2212 if (port == NULL || (port->status & CTL_PORT_STATUS_ONLINE) == 0) { 2213 ctl_set_internal_failure(ctsio, /*sks_valid*/ 0, 2214 /*retry_count*/ 1); 2215 goto badjuju; 2216 } 2217 2218 /* Make sure that we know about this LUN. */ 2219 if ((targ_lun < CTL_MAX_LUNS) && 2220 ((lun = softc->ctl_luns[targ_lun]) != NULL)) { 2221 mtx_lock(&lun->lun_lock); 2222 mtx_unlock(&softc->ctl_lock); 2223 /* 2224 * If the LUN is invalid, pretend that it doesn't exist. 2225 * It will go away as soon as all pending I/O has been 2226 * completed. 2227 */ 2228 if (lun->flags & CTL_LUN_DISABLED) { 2229 mtx_unlock(&lun->lun_lock); 2230 lun = NULL; 2231 } 2232 } else { 2233 mtx_unlock(&softc->ctl_lock); 2234 lun = NULL; 2235 } 2236 if (lun == NULL) { 2237 /* 2238 * The other node would not send this request to us unless 2239 * received announce that we are primary node for this LUN. 2240 * If this LUN does not exist now, it is probably result of 2241 * a race, so respond to initiator in the most opaque way. 2242 */ 2243 ctl_set_busy(ctsio); 2244 goto badjuju; 2245 } 2246 2247 entry = ctl_get_cmd_entry(ctsio, NULL); 2248 if (ctl_scsiio_lun_check(lun, entry, ctsio) != 0) { 2249 mtx_unlock(&lun->lun_lock); 2250 goto badjuju; 2251 } 2252 2253 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr = lun; 2254 ctsio->io_hdr.ctl_private[CTL_PRIV_BACKEND_LUN].ptr = lun->be_lun; 2255 2256 /* 2257 * Every I/O goes into the OOA queue for a 2258 * particular LUN, and stays there until completion. 2259 */ 2260#ifdef CTL_TIME_IO 2261 if (TAILQ_EMPTY(&lun->ooa_queue)) 2262 lun->idle_time += getsbinuptime() - lun->last_busy; 2263#endif 2264 TAILQ_INSERT_TAIL(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 2265 2266 switch (ctl_check_ooa(lun, (union ctl_io *)ctsio, 2267 (union ctl_io *)TAILQ_PREV(&ctsio->io_hdr, ctl_ooaq, 2268 ooa_links))) { 2269 case CTL_ACTION_BLOCK: 2270 ctsio->io_hdr.flags |= CTL_FLAG_BLOCKED; 2271 TAILQ_INSERT_TAIL(&lun->blocked_queue, &ctsio->io_hdr, 2272 blocked_links); 2273 mtx_unlock(&lun->lun_lock); 2274 break; 2275 case CTL_ACTION_PASS: 2276 case CTL_ACTION_SKIP: 2277 if (softc->ha_mode == CTL_HA_MODE_XFER) { 2278 ctsio->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 2279 ctl_enqueue_rtr((union ctl_io *)ctsio); 2280 mtx_unlock(&lun->lun_lock); 2281 } else { 2282 ctsio->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 2283 mtx_unlock(&lun->lun_lock); 2284 2285 /* send msg back to other side */ 2286 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 2287 msg_info.hdr.serializing_sc = (union ctl_io *)ctsio; 2288 msg_info.hdr.msg_type = CTL_MSG_R2R; 2289 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 2290 sizeof(msg_info.hdr), M_WAITOK); 2291 } 2292 break; 2293 case CTL_ACTION_OVERLAP: 2294 TAILQ_REMOVE(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 2295 mtx_unlock(&lun->lun_lock); 2296 ctl_set_overlapped_cmd(ctsio); 2297 goto badjuju; 2298 case CTL_ACTION_OVERLAP_TAG: 2299 TAILQ_REMOVE(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 2300 mtx_unlock(&lun->lun_lock); 2301 ctl_set_overlapped_tag(ctsio, ctsio->tag_num); 2302 goto badjuju; 2303 case CTL_ACTION_ERROR: 2304 default: 2305 TAILQ_REMOVE(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 2306 mtx_unlock(&lun->lun_lock); 2307 2308 ctl_set_internal_failure(ctsio, /*sks_valid*/ 0, 2309 /*retry_count*/ 0); 2310badjuju: 2311 ctl_copy_sense_data_back((union ctl_io *)ctsio, &msg_info); 2312 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 2313 msg_info.hdr.serializing_sc = NULL; 2314 msg_info.hdr.msg_type = CTL_MSG_BAD_JUJU; 2315 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 2316 sizeof(msg_info.scsi), M_WAITOK); 2317 retval = 1; 2318 break; 2319 } 2320 return (retval); 2321} 2322 2323/* 2324 * Returns 0 for success, errno for failure. 2325 */ 2326static void 2327ctl_ioctl_fill_ooa(struct ctl_lun *lun, uint32_t *cur_fill_num, 2328 struct ctl_ooa *ooa_hdr, struct ctl_ooa_entry *kern_entries) 2329{ 2330 union ctl_io *io; 2331 2332 mtx_lock(&lun->lun_lock); 2333 for (io = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); (io != NULL); 2334 (*cur_fill_num)++, io = (union ctl_io *)TAILQ_NEXT(&io->io_hdr, 2335 ooa_links)) { 2336 struct ctl_ooa_entry *entry; 2337 2338 /* 2339 * If we've got more than we can fit, just count the 2340 * remaining entries. 2341 */ 2342 if (*cur_fill_num >= ooa_hdr->alloc_num) 2343 continue; 2344 2345 entry = &kern_entries[*cur_fill_num]; 2346 2347 entry->tag_num = io->scsiio.tag_num; 2348 entry->lun_num = lun->lun; 2349#ifdef CTL_TIME_IO 2350 entry->start_bt = io->io_hdr.start_bt; 2351#endif 2352 bcopy(io->scsiio.cdb, entry->cdb, io->scsiio.cdb_len); 2353 entry->cdb_len = io->scsiio.cdb_len; 2354 if (io->io_hdr.flags & CTL_FLAG_BLOCKED) 2355 entry->cmd_flags |= CTL_OOACMD_FLAG_BLOCKED; 2356 2357 if (io->io_hdr.flags & CTL_FLAG_DMA_INPROG) 2358 entry->cmd_flags |= CTL_OOACMD_FLAG_DMA; 2359 2360 if (io->io_hdr.flags & CTL_FLAG_ABORT) 2361 entry->cmd_flags |= CTL_OOACMD_FLAG_ABORT; 2362 2363 if (io->io_hdr.flags & CTL_FLAG_IS_WAS_ON_RTR) 2364 entry->cmd_flags |= CTL_OOACMD_FLAG_RTR; 2365 2366 if (io->io_hdr.flags & CTL_FLAG_DMA_QUEUED) 2367 entry->cmd_flags |= CTL_OOACMD_FLAG_DMA_QUEUED; 2368 } 2369 mtx_unlock(&lun->lun_lock); 2370} 2371 2372static void * 2373ctl_copyin_alloc(void *user_addr, unsigned int len, char *error_str, 2374 size_t error_str_len) 2375{ 2376 void *kptr; 2377 2378 kptr = malloc(len, M_CTL, M_WAITOK | M_ZERO); 2379 2380 if (copyin(user_addr, kptr, len) != 0) { 2381 snprintf(error_str, error_str_len, "Error copying %d bytes " 2382 "from user address %p to kernel address %p", len, 2383 user_addr, kptr); 2384 free(kptr, M_CTL); 2385 return (NULL); 2386 } 2387 2388 return (kptr); 2389} 2390 2391static void 2392ctl_free_args(int num_args, struct ctl_be_arg *args) 2393{ 2394 int i; 2395 2396 if (args == NULL) 2397 return; 2398 2399 for (i = 0; i < num_args; i++) { 2400 free(args[i].kname, M_CTL); 2401 free(args[i].kvalue, M_CTL); 2402 } 2403 2404 free(args, M_CTL); 2405} 2406 2407static struct ctl_be_arg * 2408ctl_copyin_args(int num_args, struct ctl_be_arg *uargs, 2409 char *error_str, size_t error_str_len) 2410{ 2411 struct ctl_be_arg *args; 2412 int i; 2413 2414 args = ctl_copyin_alloc(uargs, num_args * sizeof(*args), 2415 error_str, error_str_len); 2416 2417 if (args == NULL) 2418 goto bailout; 2419 2420 for (i = 0; i < num_args; i++) { 2421 args[i].kname = NULL; 2422 args[i].kvalue = NULL; 2423 } 2424 2425 for (i = 0; i < num_args; i++) { 2426 uint8_t *tmpptr; 2427 2428 if (args[i].namelen == 0) { 2429 snprintf(error_str, error_str_len, "Argument %d " 2430 "name length is zero", i); 2431 goto bailout; 2432 } 2433 2434 args[i].kname = ctl_copyin_alloc(args[i].name, 2435 args[i].namelen, error_str, error_str_len); 2436 if (args[i].kname == NULL) 2437 goto bailout; 2438 2439 if (args[i].kname[args[i].namelen - 1] != '\0') { 2440 snprintf(error_str, error_str_len, "Argument %d " 2441 "name is not NUL-terminated", i); 2442 goto bailout; 2443 } 2444 2445 if (args[i].flags & CTL_BEARG_RD) { 2446 if (args[i].vallen == 0) { 2447 snprintf(error_str, error_str_len, "Argument %d " 2448 "value length is zero", i); 2449 goto bailout; 2450 } 2451 2452 tmpptr = ctl_copyin_alloc(args[i].value, 2453 args[i].vallen, error_str, error_str_len); 2454 if (tmpptr == NULL) 2455 goto bailout; 2456 2457 if ((args[i].flags & CTL_BEARG_ASCII) 2458 && (tmpptr[args[i].vallen - 1] != '\0')) { 2459 snprintf(error_str, error_str_len, "Argument " 2460 "%d value is not NUL-terminated", i); 2461 free(tmpptr, M_CTL); 2462 goto bailout; 2463 } 2464 args[i].kvalue = tmpptr; 2465 } else { 2466 args[i].kvalue = malloc(args[i].vallen, 2467 M_CTL, M_WAITOK | M_ZERO); 2468 } 2469 } 2470 2471 return (args); 2472bailout: 2473 2474 ctl_free_args(num_args, args); 2475 2476 return (NULL); 2477} 2478 2479static void 2480ctl_copyout_args(int num_args, struct ctl_be_arg *args) 2481{ 2482 int i; 2483 2484 for (i = 0; i < num_args; i++) { 2485 if (args[i].flags & CTL_BEARG_WR) 2486 copyout(args[i].kvalue, args[i].value, args[i].vallen); 2487 } 2488} 2489 2490/* 2491 * Escape characters that are illegal or not recommended in XML. 2492 */ 2493int 2494ctl_sbuf_printf_esc(struct sbuf *sb, char *str, int size) 2495{ 2496 char *end = str + size; 2497 int retval; 2498 2499 retval = 0; 2500 2501 for (; *str && str < end; str++) { 2502 switch (*str) { 2503 case '&': 2504 retval = sbuf_printf(sb, "&"); 2505 break; 2506 case '>': 2507 retval = sbuf_printf(sb, ">"); 2508 break; 2509 case '<': 2510 retval = sbuf_printf(sb, "<"); 2511 break; 2512 default: 2513 retval = sbuf_putc(sb, *str); 2514 break; 2515 } 2516 2517 if (retval != 0) 2518 break; 2519 2520 } 2521 2522 return (retval); 2523} 2524 2525static void 2526ctl_id_sbuf(struct ctl_devid *id, struct sbuf *sb) 2527{ 2528 struct scsi_vpd_id_descriptor *desc; 2529 int i; 2530 2531 if (id == NULL || id->len < 4) 2532 return; 2533 desc = (struct scsi_vpd_id_descriptor *)id->data; 2534 switch (desc->id_type & SVPD_ID_TYPE_MASK) { 2535 case SVPD_ID_TYPE_T10: 2536 sbuf_printf(sb, "t10."); 2537 break; 2538 case SVPD_ID_TYPE_EUI64: 2539 sbuf_printf(sb, "eui."); 2540 break; 2541 case SVPD_ID_TYPE_NAA: 2542 sbuf_printf(sb, "naa."); 2543 break; 2544 case SVPD_ID_TYPE_SCSI_NAME: 2545 break; 2546 } 2547 switch (desc->proto_codeset & SVPD_ID_CODESET_MASK) { 2548 case SVPD_ID_CODESET_BINARY: 2549 for (i = 0; i < desc->length; i++) 2550 sbuf_printf(sb, "%02x", desc->identifier[i]); 2551 break; 2552 case SVPD_ID_CODESET_ASCII: 2553 sbuf_printf(sb, "%.*s", (int)desc->length, 2554 (char *)desc->identifier); 2555 break; 2556 case SVPD_ID_CODESET_UTF8: 2557 sbuf_printf(sb, "%s", (char *)desc->identifier); 2558 break; 2559 } 2560} 2561 2562static int 2563ctl_ioctl(struct cdev *dev, u_long cmd, caddr_t addr, int flag, 2564 struct thread *td) 2565{ 2566 struct ctl_softc *softc = dev->si_drv1; 2567 struct ctl_lun *lun; 2568 int retval; 2569 2570 retval = 0; 2571 2572 switch (cmd) { 2573 case CTL_IO: 2574 retval = ctl_ioctl_io(dev, cmd, addr, flag, td); 2575 break; 2576 case CTL_ENABLE_PORT: 2577 case CTL_DISABLE_PORT: 2578 case CTL_SET_PORT_WWNS: { 2579 struct ctl_port *port; 2580 struct ctl_port_entry *entry; 2581 2582 entry = (struct ctl_port_entry *)addr; 2583 2584 mtx_lock(&softc->ctl_lock); 2585 STAILQ_FOREACH(port, &softc->port_list, links) { 2586 int action, done; 2587 2588 if (port->targ_port < softc->port_min || 2589 port->targ_port >= softc->port_max) 2590 continue; 2591 2592 action = 0; 2593 done = 0; 2594 if ((entry->port_type == CTL_PORT_NONE) 2595 && (entry->targ_port == port->targ_port)) { 2596 /* 2597 * If the user only wants to enable or 2598 * disable or set WWNs on a specific port, 2599 * do the operation and we're done. 2600 */ 2601 action = 1; 2602 done = 1; 2603 } else if (entry->port_type & port->port_type) { 2604 /* 2605 * Compare the user's type mask with the 2606 * particular frontend type to see if we 2607 * have a match. 2608 */ 2609 action = 1; 2610 done = 0; 2611 2612 /* 2613 * Make sure the user isn't trying to set 2614 * WWNs on multiple ports at the same time. 2615 */ 2616 if (cmd == CTL_SET_PORT_WWNS) { 2617 printf("%s: Can't set WWNs on " 2618 "multiple ports\n", __func__); 2619 retval = EINVAL; 2620 break; 2621 } 2622 } 2623 if (action == 0) 2624 continue; 2625 2626 /* 2627 * XXX KDM we have to drop the lock here, because 2628 * the online/offline operations can potentially 2629 * block. We need to reference count the frontends 2630 * so they can't go away, 2631 */ 2632 if (cmd == CTL_ENABLE_PORT) { 2633 mtx_unlock(&softc->ctl_lock); 2634 ctl_port_online(port); 2635 mtx_lock(&softc->ctl_lock); 2636 } else if (cmd == CTL_DISABLE_PORT) { 2637 mtx_unlock(&softc->ctl_lock); 2638 ctl_port_offline(port); 2639 mtx_lock(&softc->ctl_lock); 2640 } else if (cmd == CTL_SET_PORT_WWNS) { 2641 ctl_port_set_wwns(port, 2642 (entry->flags & CTL_PORT_WWNN_VALID) ? 2643 1 : 0, entry->wwnn, 2644 (entry->flags & CTL_PORT_WWPN_VALID) ? 2645 1 : 0, entry->wwpn); 2646 } 2647 if (done != 0) 2648 break; 2649 } 2650 mtx_unlock(&softc->ctl_lock); 2651 break; 2652 } 2653 case CTL_GET_OOA: { 2654 struct ctl_ooa *ooa_hdr; 2655 struct ctl_ooa_entry *entries; 2656 uint32_t cur_fill_num; 2657 2658 ooa_hdr = (struct ctl_ooa *)addr; 2659 2660 if ((ooa_hdr->alloc_len == 0) 2661 || (ooa_hdr->alloc_num == 0)) { 2662 printf("%s: CTL_GET_OOA: alloc len %u and alloc num %u " 2663 "must be non-zero\n", __func__, 2664 ooa_hdr->alloc_len, ooa_hdr->alloc_num); 2665 retval = EINVAL; 2666 break; 2667 } 2668 2669 if (ooa_hdr->alloc_len != (ooa_hdr->alloc_num * 2670 sizeof(struct ctl_ooa_entry))) { 2671 printf("%s: CTL_GET_OOA: alloc len %u must be alloc " 2672 "num %d * sizeof(struct ctl_ooa_entry) %zd\n", 2673 __func__, ooa_hdr->alloc_len, 2674 ooa_hdr->alloc_num,sizeof(struct ctl_ooa_entry)); 2675 retval = EINVAL; 2676 break; 2677 } 2678 2679 entries = malloc(ooa_hdr->alloc_len, M_CTL, M_WAITOK | M_ZERO); 2680 if (entries == NULL) { 2681 printf("%s: could not allocate %d bytes for OOA " 2682 "dump\n", __func__, ooa_hdr->alloc_len); 2683 retval = ENOMEM; 2684 break; 2685 } 2686 2687 mtx_lock(&softc->ctl_lock); 2688 if (((ooa_hdr->flags & CTL_OOA_FLAG_ALL_LUNS) == 0) 2689 && ((ooa_hdr->lun_num >= CTL_MAX_LUNS) 2690 || (softc->ctl_luns[ooa_hdr->lun_num] == NULL))) { 2691 mtx_unlock(&softc->ctl_lock); 2692 free(entries, M_CTL); 2693 printf("%s: CTL_GET_OOA: invalid LUN %ju\n", 2694 __func__, (uintmax_t)ooa_hdr->lun_num); 2695 retval = EINVAL; 2696 break; 2697 } 2698 2699 cur_fill_num = 0; 2700 2701 if (ooa_hdr->flags & CTL_OOA_FLAG_ALL_LUNS) { 2702 STAILQ_FOREACH(lun, &softc->lun_list, links) { 2703 ctl_ioctl_fill_ooa(lun, &cur_fill_num, 2704 ooa_hdr, entries); 2705 } 2706 } else { 2707 lun = softc->ctl_luns[ooa_hdr->lun_num]; 2708 ctl_ioctl_fill_ooa(lun, &cur_fill_num, ooa_hdr, 2709 entries); 2710 } 2711 mtx_unlock(&softc->ctl_lock); 2712 2713 ooa_hdr->fill_num = min(cur_fill_num, ooa_hdr->alloc_num); 2714 ooa_hdr->fill_len = ooa_hdr->fill_num * 2715 sizeof(struct ctl_ooa_entry); 2716 retval = copyout(entries, ooa_hdr->entries, ooa_hdr->fill_len); 2717 if (retval != 0) { 2718 printf("%s: error copying out %d bytes for OOA dump\n", 2719 __func__, ooa_hdr->fill_len); 2720 } 2721 2722 getbinuptime(&ooa_hdr->cur_bt); 2723 2724 if (cur_fill_num > ooa_hdr->alloc_num) { 2725 ooa_hdr->dropped_num = cur_fill_num -ooa_hdr->alloc_num; 2726 ooa_hdr->status = CTL_OOA_NEED_MORE_SPACE; 2727 } else { 2728 ooa_hdr->dropped_num = 0; 2729 ooa_hdr->status = CTL_OOA_OK; 2730 } 2731 2732 free(entries, M_CTL); 2733 break; 2734 } 2735 case CTL_DELAY_IO: { 2736 struct ctl_io_delay_info *delay_info; 2737 2738 delay_info = (struct ctl_io_delay_info *)addr; 2739 2740#ifdef CTL_IO_DELAY 2741 mtx_lock(&softc->ctl_lock); 2742 2743 if ((delay_info->lun_id >= CTL_MAX_LUNS) 2744 || (softc->ctl_luns[delay_info->lun_id] == NULL)) { 2745 delay_info->status = CTL_DELAY_STATUS_INVALID_LUN; 2746 } else { 2747 lun = softc->ctl_luns[delay_info->lun_id]; 2748 mtx_lock(&lun->lun_lock); 2749 2750 delay_info->status = CTL_DELAY_STATUS_OK; 2751 2752 switch (delay_info->delay_type) { 2753 case CTL_DELAY_TYPE_CONT: 2754 break; 2755 case CTL_DELAY_TYPE_ONESHOT: 2756 break; 2757 default: 2758 delay_info->status = 2759 CTL_DELAY_STATUS_INVALID_TYPE; 2760 break; 2761 } 2762 2763 switch (delay_info->delay_loc) { 2764 case CTL_DELAY_LOC_DATAMOVE: 2765 lun->delay_info.datamove_type = 2766 delay_info->delay_type; 2767 lun->delay_info.datamove_delay = 2768 delay_info->delay_secs; 2769 break; 2770 case CTL_DELAY_LOC_DONE: 2771 lun->delay_info.done_type = 2772 delay_info->delay_type; 2773 lun->delay_info.done_delay = 2774 delay_info->delay_secs; 2775 break; 2776 default: 2777 delay_info->status = 2778 CTL_DELAY_STATUS_INVALID_LOC; 2779 break; 2780 } 2781 mtx_unlock(&lun->lun_lock); 2782 } 2783 2784 mtx_unlock(&softc->ctl_lock); 2785#else 2786 delay_info->status = CTL_DELAY_STATUS_NOT_IMPLEMENTED; 2787#endif /* CTL_IO_DELAY */ 2788 break; 2789 } 2790 case CTL_GETSTATS: { 2791 struct ctl_stats *stats; 2792 int i; 2793 2794 stats = (struct ctl_stats *)addr; 2795 2796 if ((sizeof(struct ctl_lun_io_stats) * softc->num_luns) > 2797 stats->alloc_len) { 2798 stats->status = CTL_SS_NEED_MORE_SPACE; 2799 stats->num_luns = softc->num_luns; 2800 break; 2801 } 2802 /* 2803 * XXX KDM no locking here. If the LUN list changes, 2804 * things can blow up. 2805 */ 2806 i = 0; 2807 STAILQ_FOREACH(lun, &softc->lun_list, links) { 2808 retval = copyout(&lun->stats, &stats->lun_stats[i++], 2809 sizeof(lun->stats)); 2810 if (retval != 0) 2811 break; 2812 } 2813 stats->num_luns = softc->num_luns; 2814 stats->fill_len = sizeof(struct ctl_lun_io_stats) * 2815 softc->num_luns; 2816 stats->status = CTL_SS_OK; 2817#ifdef CTL_TIME_IO 2818 stats->flags = CTL_STATS_FLAG_TIME_VALID; 2819#else 2820 stats->flags = CTL_STATS_FLAG_NONE; 2821#endif 2822 getnanouptime(&stats->timestamp); 2823 break; 2824 } 2825 case CTL_ERROR_INJECT: { 2826 struct ctl_error_desc *err_desc, *new_err_desc; 2827 2828 err_desc = (struct ctl_error_desc *)addr; 2829 2830 new_err_desc = malloc(sizeof(*new_err_desc), M_CTL, 2831 M_WAITOK | M_ZERO); 2832 bcopy(err_desc, new_err_desc, sizeof(*new_err_desc)); 2833 2834 mtx_lock(&softc->ctl_lock); 2835 lun = softc->ctl_luns[err_desc->lun_id]; 2836 if (lun == NULL) { 2837 mtx_unlock(&softc->ctl_lock); 2838 free(new_err_desc, M_CTL); 2839 printf("%s: CTL_ERROR_INJECT: invalid LUN %ju\n", 2840 __func__, (uintmax_t)err_desc->lun_id); 2841 retval = EINVAL; 2842 break; 2843 } 2844 mtx_lock(&lun->lun_lock); 2845 mtx_unlock(&softc->ctl_lock); 2846 2847 /* 2848 * We could do some checking here to verify the validity 2849 * of the request, but given the complexity of error 2850 * injection requests, the checking logic would be fairly 2851 * complex. 2852 * 2853 * For now, if the request is invalid, it just won't get 2854 * executed and might get deleted. 2855 */ 2856 STAILQ_INSERT_TAIL(&lun->error_list, new_err_desc, links); 2857 2858 /* 2859 * XXX KDM check to make sure the serial number is unique, 2860 * in case we somehow manage to wrap. That shouldn't 2861 * happen for a very long time, but it's the right thing to 2862 * do. 2863 */ 2864 new_err_desc->serial = lun->error_serial; 2865 err_desc->serial = lun->error_serial; 2866 lun->error_serial++; 2867 2868 mtx_unlock(&lun->lun_lock); 2869 break; 2870 } 2871 case CTL_ERROR_INJECT_DELETE: { 2872 struct ctl_error_desc *delete_desc, *desc, *desc2; 2873 int delete_done; 2874 2875 delete_desc = (struct ctl_error_desc *)addr; 2876 delete_done = 0; 2877 2878 mtx_lock(&softc->ctl_lock); 2879 lun = softc->ctl_luns[delete_desc->lun_id]; 2880 if (lun == NULL) { 2881 mtx_unlock(&softc->ctl_lock); 2882 printf("%s: CTL_ERROR_INJECT_DELETE: invalid LUN %ju\n", 2883 __func__, (uintmax_t)delete_desc->lun_id); 2884 retval = EINVAL; 2885 break; 2886 } 2887 mtx_lock(&lun->lun_lock); 2888 mtx_unlock(&softc->ctl_lock); 2889 STAILQ_FOREACH_SAFE(desc, &lun->error_list, links, desc2) { 2890 if (desc->serial != delete_desc->serial) 2891 continue; 2892 2893 STAILQ_REMOVE(&lun->error_list, desc, ctl_error_desc, 2894 links); 2895 free(desc, M_CTL); 2896 delete_done = 1; 2897 } 2898 mtx_unlock(&lun->lun_lock); 2899 if (delete_done == 0) { 2900 printf("%s: CTL_ERROR_INJECT_DELETE: can't find " 2901 "error serial %ju on LUN %u\n", __func__, 2902 delete_desc->serial, delete_desc->lun_id); 2903 retval = EINVAL; 2904 break; 2905 } 2906 break; 2907 } 2908 case CTL_DUMP_STRUCTS: { 2909 int i, j, k; 2910 struct ctl_port *port; 2911 struct ctl_frontend *fe; 2912 2913 mtx_lock(&softc->ctl_lock); 2914 printf("CTL Persistent Reservation information start:\n"); 2915 for (i = 0; i < CTL_MAX_LUNS; i++) { 2916 lun = softc->ctl_luns[i]; 2917 2918 if ((lun == NULL) 2919 || ((lun->flags & CTL_LUN_DISABLED) != 0)) 2920 continue; 2921 2922 for (j = 0; j < CTL_MAX_PORTS; j++) { 2923 if (lun->pr_keys[j] == NULL) 2924 continue; 2925 for (k = 0; k < CTL_MAX_INIT_PER_PORT; k++){ 2926 if (lun->pr_keys[j][k] == 0) 2927 continue; 2928 printf(" LUN %d port %d iid %d key " 2929 "%#jx\n", i, j, k, 2930 (uintmax_t)lun->pr_keys[j][k]); 2931 } 2932 } 2933 } 2934 printf("CTL Persistent Reservation information end\n"); 2935 printf("CTL Ports:\n"); 2936 STAILQ_FOREACH(port, &softc->port_list, links) { 2937 printf(" Port %d '%s' Frontend '%s' Type %u pp %d vp %d WWNN " 2938 "%#jx WWPN %#jx\n", port->targ_port, port->port_name, 2939 port->frontend->name, port->port_type, 2940 port->physical_port, port->virtual_port, 2941 (uintmax_t)port->wwnn, (uintmax_t)port->wwpn); 2942 for (j = 0; j < CTL_MAX_INIT_PER_PORT; j++) { 2943 if (port->wwpn_iid[j].in_use == 0 && 2944 port->wwpn_iid[j].wwpn == 0 && 2945 port->wwpn_iid[j].name == NULL) 2946 continue; 2947 2948 printf(" iid %u use %d WWPN %#jx '%s'\n", 2949 j, port->wwpn_iid[j].in_use, 2950 (uintmax_t)port->wwpn_iid[j].wwpn, 2951 port->wwpn_iid[j].name); 2952 } 2953 } 2954 printf("CTL Port information end\n"); 2955 mtx_unlock(&softc->ctl_lock); 2956 /* 2957 * XXX KDM calling this without a lock. We'd likely want 2958 * to drop the lock before calling the frontend's dump 2959 * routine anyway. 2960 */ 2961 printf("CTL Frontends:\n"); 2962 STAILQ_FOREACH(fe, &softc->fe_list, links) { 2963 printf(" Frontend '%s'\n", fe->name); 2964 if (fe->fe_dump != NULL) 2965 fe->fe_dump(); 2966 } 2967 printf("CTL Frontend information end\n"); 2968 break; 2969 } 2970 case CTL_LUN_REQ: { 2971 struct ctl_lun_req *lun_req; 2972 struct ctl_backend_driver *backend; 2973 2974 lun_req = (struct ctl_lun_req *)addr; 2975 2976 backend = ctl_backend_find(lun_req->backend); 2977 if (backend == NULL) { 2978 lun_req->status = CTL_LUN_ERROR; 2979 snprintf(lun_req->error_str, 2980 sizeof(lun_req->error_str), 2981 "Backend \"%s\" not found.", 2982 lun_req->backend); 2983 break; 2984 } 2985 if (lun_req->num_be_args > 0) { 2986 lun_req->kern_be_args = ctl_copyin_args( 2987 lun_req->num_be_args, 2988 lun_req->be_args, 2989 lun_req->error_str, 2990 sizeof(lun_req->error_str)); 2991 if (lun_req->kern_be_args == NULL) { 2992 lun_req->status = CTL_LUN_ERROR; 2993 break; 2994 } 2995 } 2996 2997 retval = backend->ioctl(dev, cmd, addr, flag, td); 2998 2999 if (lun_req->num_be_args > 0) { 3000 ctl_copyout_args(lun_req->num_be_args, 3001 lun_req->kern_be_args); 3002 ctl_free_args(lun_req->num_be_args, 3003 lun_req->kern_be_args); 3004 } 3005 break; 3006 } 3007 case CTL_LUN_LIST: { 3008 struct sbuf *sb; 3009 struct ctl_lun_list *list; 3010 struct ctl_option *opt; 3011 3012 list = (struct ctl_lun_list *)addr; 3013 3014 /* 3015 * Allocate a fixed length sbuf here, based on the length 3016 * of the user's buffer. We could allocate an auto-extending 3017 * buffer, and then tell the user how much larger our 3018 * amount of data is than his buffer, but that presents 3019 * some problems: 3020 * 3021 * 1. The sbuf(9) routines use a blocking malloc, and so 3022 * we can't hold a lock while calling them with an 3023 * auto-extending buffer. 3024 * 3025 * 2. There is not currently a LUN reference counting 3026 * mechanism, outside of outstanding transactions on 3027 * the LUN's OOA queue. So a LUN could go away on us 3028 * while we're getting the LUN number, backend-specific 3029 * information, etc. Thus, given the way things 3030 * currently work, we need to hold the CTL lock while 3031 * grabbing LUN information. 3032 * 3033 * So, from the user's standpoint, the best thing to do is 3034 * allocate what he thinks is a reasonable buffer length, 3035 * and then if he gets a CTL_LUN_LIST_NEED_MORE_SPACE error, 3036 * double the buffer length and try again. (And repeat 3037 * that until he succeeds.) 3038 */ 3039 sb = sbuf_new(NULL, NULL, list->alloc_len, SBUF_FIXEDLEN); 3040 if (sb == NULL) { 3041 list->status = CTL_LUN_LIST_ERROR; 3042 snprintf(list->error_str, sizeof(list->error_str), 3043 "Unable to allocate %d bytes for LUN list", 3044 list->alloc_len); 3045 break; 3046 } 3047 3048 sbuf_printf(sb, "<ctllunlist>\n"); 3049 3050 mtx_lock(&softc->ctl_lock); 3051 STAILQ_FOREACH(lun, &softc->lun_list, links) { 3052 mtx_lock(&lun->lun_lock); 3053 retval = sbuf_printf(sb, "<lun id=\"%ju\">\n", 3054 (uintmax_t)lun->lun); 3055 3056 /* 3057 * Bail out as soon as we see that we've overfilled 3058 * the buffer. 3059 */ 3060 if (retval != 0) 3061 break; 3062 3063 retval = sbuf_printf(sb, "\t<backend_type>%s" 3064 "</backend_type>\n", 3065 (lun->backend == NULL) ? "none" : 3066 lun->backend->name); 3067 3068 if (retval != 0) 3069 break; 3070 3071 retval = sbuf_printf(sb, "\t<lun_type>%d</lun_type>\n", 3072 lun->be_lun->lun_type); 3073 3074 if (retval != 0) 3075 break; 3076 3077 if (lun->backend == NULL) { 3078 retval = sbuf_printf(sb, "</lun>\n"); 3079 if (retval != 0) 3080 break; 3081 continue; 3082 } 3083 3084 retval = sbuf_printf(sb, "\t<size>%ju</size>\n", 3085 (lun->be_lun->maxlba > 0) ? 3086 lun->be_lun->maxlba + 1 : 0); 3087 3088 if (retval != 0) 3089 break; 3090 3091 retval = sbuf_printf(sb, "\t<blocksize>%u</blocksize>\n", 3092 lun->be_lun->blocksize); 3093 3094 if (retval != 0) 3095 break; 3096 3097 retval = sbuf_printf(sb, "\t<serial_number>"); 3098 3099 if (retval != 0) 3100 break; 3101 3102 retval = ctl_sbuf_printf_esc(sb, 3103 lun->be_lun->serial_num, 3104 sizeof(lun->be_lun->serial_num)); 3105 3106 if (retval != 0) 3107 break; 3108 3109 retval = sbuf_printf(sb, "</serial_number>\n"); 3110 3111 if (retval != 0) 3112 break; 3113 3114 retval = sbuf_printf(sb, "\t<device_id>"); 3115 3116 if (retval != 0) 3117 break; 3118 3119 retval = ctl_sbuf_printf_esc(sb, 3120 lun->be_lun->device_id, 3121 sizeof(lun->be_lun->device_id)); 3122 3123 if (retval != 0) 3124 break; 3125 3126 retval = sbuf_printf(sb, "</device_id>\n"); 3127 3128 if (retval != 0) 3129 break; 3130 3131 if (lun->backend->lun_info != NULL) { 3132 retval = lun->backend->lun_info(lun->be_lun->be_lun, sb); 3133 if (retval != 0) 3134 break; 3135 } 3136 STAILQ_FOREACH(opt, &lun->be_lun->options, links) { 3137 retval = sbuf_printf(sb, "\t<%s>%s</%s>\n", 3138 opt->name, opt->value, opt->name); 3139 if (retval != 0) 3140 break; 3141 } 3142 3143 retval = sbuf_printf(sb, "</lun>\n"); 3144 3145 if (retval != 0) 3146 break; 3147 mtx_unlock(&lun->lun_lock); 3148 } 3149 if (lun != NULL) 3150 mtx_unlock(&lun->lun_lock); 3151 mtx_unlock(&softc->ctl_lock); 3152 3153 if ((retval != 0) 3154 || ((retval = sbuf_printf(sb, "</ctllunlist>\n")) != 0)) { 3155 retval = 0; 3156 sbuf_delete(sb); 3157 list->status = CTL_LUN_LIST_NEED_MORE_SPACE; 3158 snprintf(list->error_str, sizeof(list->error_str), 3159 "Out of space, %d bytes is too small", 3160 list->alloc_len); 3161 break; 3162 } 3163 3164 sbuf_finish(sb); 3165 3166 retval = copyout(sbuf_data(sb), list->lun_xml, 3167 sbuf_len(sb) + 1); 3168 3169 list->fill_len = sbuf_len(sb) + 1; 3170 list->status = CTL_LUN_LIST_OK; 3171 sbuf_delete(sb); 3172 break; 3173 } 3174 case CTL_ISCSI: { 3175 struct ctl_iscsi *ci; 3176 struct ctl_frontend *fe; 3177 3178 ci = (struct ctl_iscsi *)addr; 3179 3180 fe = ctl_frontend_find("iscsi"); 3181 if (fe == NULL) { 3182 ci->status = CTL_ISCSI_ERROR; 3183 snprintf(ci->error_str, sizeof(ci->error_str), 3184 "Frontend \"iscsi\" not found."); 3185 break; 3186 } 3187 3188 retval = fe->ioctl(dev, cmd, addr, flag, td); 3189 break; 3190 } 3191 case CTL_PORT_REQ: { 3192 struct ctl_req *req; 3193 struct ctl_frontend *fe; 3194 3195 req = (struct ctl_req *)addr; 3196 3197 fe = ctl_frontend_find(req->driver); 3198 if (fe == NULL) { 3199 req->status = CTL_LUN_ERROR; 3200 snprintf(req->error_str, sizeof(req->error_str), 3201 "Frontend \"%s\" not found.", req->driver); 3202 break; 3203 } 3204 if (req->num_args > 0) { 3205 req->kern_args = ctl_copyin_args(req->num_args, 3206 req->args, req->error_str, sizeof(req->error_str)); 3207 if (req->kern_args == NULL) { 3208 req->status = CTL_LUN_ERROR; 3209 break; 3210 } 3211 } 3212 3213 if (fe->ioctl) 3214 retval = fe->ioctl(dev, cmd, addr, flag, td); 3215 else 3216 retval = ENODEV; 3217 3218 if (req->num_args > 0) { 3219 ctl_copyout_args(req->num_args, req->kern_args); 3220 ctl_free_args(req->num_args, req->kern_args); 3221 } 3222 break; 3223 } 3224 case CTL_PORT_LIST: { 3225 struct sbuf *sb; 3226 struct ctl_port *port; 3227 struct ctl_lun_list *list; 3228 struct ctl_option *opt; 3229 int j; 3230 uint32_t plun; 3231 3232 list = (struct ctl_lun_list *)addr; 3233 3234 sb = sbuf_new(NULL, NULL, list->alloc_len, SBUF_FIXEDLEN); 3235 if (sb == NULL) { 3236 list->status = CTL_LUN_LIST_ERROR; 3237 snprintf(list->error_str, sizeof(list->error_str), 3238 "Unable to allocate %d bytes for LUN list", 3239 list->alloc_len); 3240 break; 3241 } 3242 3243 sbuf_printf(sb, "<ctlportlist>\n"); 3244 3245 mtx_lock(&softc->ctl_lock); 3246 STAILQ_FOREACH(port, &softc->port_list, links) { 3247 retval = sbuf_printf(sb, "<targ_port id=\"%ju\">\n", 3248 (uintmax_t)port->targ_port); 3249 3250 /* 3251 * Bail out as soon as we see that we've overfilled 3252 * the buffer. 3253 */ 3254 if (retval != 0) 3255 break; 3256 3257 retval = sbuf_printf(sb, "\t<frontend_type>%s" 3258 "</frontend_type>\n", port->frontend->name); 3259 if (retval != 0) 3260 break; 3261 3262 retval = sbuf_printf(sb, "\t<port_type>%d</port_type>\n", 3263 port->port_type); 3264 if (retval != 0) 3265 break; 3266 3267 retval = sbuf_printf(sb, "\t<online>%s</online>\n", 3268 (port->status & CTL_PORT_STATUS_ONLINE) ? "YES" : "NO"); 3269 if (retval != 0) 3270 break; 3271 3272 retval = sbuf_printf(sb, "\t<port_name>%s</port_name>\n", 3273 port->port_name); 3274 if (retval != 0) 3275 break; 3276 3277 retval = sbuf_printf(sb, "\t<physical_port>%d</physical_port>\n", 3278 port->physical_port); 3279 if (retval != 0) 3280 break; 3281 3282 retval = sbuf_printf(sb, "\t<virtual_port>%d</virtual_port>\n", 3283 port->virtual_port); 3284 if (retval != 0) 3285 break; 3286 3287 if (port->target_devid != NULL) { 3288 sbuf_printf(sb, "\t<target>"); 3289 ctl_id_sbuf(port->target_devid, sb); 3290 sbuf_printf(sb, "</target>\n"); 3291 } 3292 3293 if (port->port_devid != NULL) { 3294 sbuf_printf(sb, "\t<port>"); 3295 ctl_id_sbuf(port->port_devid, sb); 3296 sbuf_printf(sb, "</port>\n"); 3297 } 3298 3299 if (port->port_info != NULL) { 3300 retval = port->port_info(port->onoff_arg, sb); 3301 if (retval != 0) 3302 break; 3303 } 3304 STAILQ_FOREACH(opt, &port->options, links) { 3305 retval = sbuf_printf(sb, "\t<%s>%s</%s>\n", 3306 opt->name, opt->value, opt->name); 3307 if (retval != 0) 3308 break; 3309 } 3310 3311 if (port->lun_map != NULL) { 3312 sbuf_printf(sb, "\t<lun_map>on</lun_map>\n"); 3313 for (j = 0; j < CTL_MAX_LUNS; j++) { 3314 plun = ctl_lun_map_from_port(port, j); 3315 if (plun >= CTL_MAX_LUNS) 3316 continue; 3317 sbuf_printf(sb, 3318 "\t<lun id=\"%u\">%u</lun>\n", 3319 j, plun); 3320 } 3321 } 3322 3323 for (j = 0; j < CTL_MAX_INIT_PER_PORT; j++) { 3324 if (port->wwpn_iid[j].in_use == 0 || 3325 (port->wwpn_iid[j].wwpn == 0 && 3326 port->wwpn_iid[j].name == NULL)) 3327 continue; 3328 3329 if (port->wwpn_iid[j].name != NULL) 3330 retval = sbuf_printf(sb, 3331 "\t<initiator id=\"%u\">%s</initiator>\n", 3332 j, port->wwpn_iid[j].name); 3333 else 3334 retval = sbuf_printf(sb, 3335 "\t<initiator id=\"%u\">naa.%08jx</initiator>\n", 3336 j, port->wwpn_iid[j].wwpn); 3337 if (retval != 0) 3338 break; 3339 } 3340 if (retval != 0) 3341 break; 3342 3343 retval = sbuf_printf(sb, "</targ_port>\n"); 3344 if (retval != 0) 3345 break; 3346 } 3347 mtx_unlock(&softc->ctl_lock); 3348 3349 if ((retval != 0) 3350 || ((retval = sbuf_printf(sb, "</ctlportlist>\n")) != 0)) { 3351 retval = 0; 3352 sbuf_delete(sb); 3353 list->status = CTL_LUN_LIST_NEED_MORE_SPACE; 3354 snprintf(list->error_str, sizeof(list->error_str), 3355 "Out of space, %d bytes is too small", 3356 list->alloc_len); 3357 break; 3358 } 3359 3360 sbuf_finish(sb); 3361 3362 retval = copyout(sbuf_data(sb), list->lun_xml, 3363 sbuf_len(sb) + 1); 3364 3365 list->fill_len = sbuf_len(sb) + 1; 3366 list->status = CTL_LUN_LIST_OK; 3367 sbuf_delete(sb); 3368 break; 3369 } 3370 case CTL_LUN_MAP: { 3371 struct ctl_lun_map *lm = (struct ctl_lun_map *)addr; 3372 struct ctl_port *port; 3373 3374 mtx_lock(&softc->ctl_lock); 3375 if (lm->port < softc->port_min || 3376 lm->port >= softc->port_max || 3377 (port = softc->ctl_ports[lm->port]) == NULL) { 3378 mtx_unlock(&softc->ctl_lock); 3379 return (ENXIO); 3380 } 3381 if (port->status & CTL_PORT_STATUS_ONLINE) { 3382 STAILQ_FOREACH(lun, &softc->lun_list, links) { 3383 if (ctl_lun_map_to_port(port, lun->lun) >= 3384 CTL_MAX_LUNS) 3385 continue; 3386 mtx_lock(&lun->lun_lock); 3387 ctl_est_ua_port(lun, lm->port, -1, 3388 CTL_UA_LUN_CHANGE); 3389 mtx_unlock(&lun->lun_lock); 3390 } 3391 } 3392 mtx_unlock(&softc->ctl_lock); // XXX: port_enable sleeps 3393 if (lm->plun < CTL_MAX_LUNS) { 3394 if (lm->lun == UINT32_MAX) 3395 retval = ctl_lun_map_unset(port, lm->plun); 3396 else if (lm->lun < CTL_MAX_LUNS && 3397 softc->ctl_luns[lm->lun] != NULL) 3398 retval = ctl_lun_map_set(port, lm->plun, lm->lun); 3399 else 3400 return (ENXIO); 3401 } else if (lm->plun == UINT32_MAX) { 3402 if (lm->lun == UINT32_MAX) 3403 retval = ctl_lun_map_deinit(port); 3404 else 3405 retval = ctl_lun_map_init(port); 3406 } else 3407 return (ENXIO); 3408 if (port->status & CTL_PORT_STATUS_ONLINE) 3409 ctl_isc_announce_port(port); 3410 break; 3411 } 3412 default: { 3413 /* XXX KDM should we fix this? */ 3414#if 0 3415 struct ctl_backend_driver *backend; 3416 unsigned int type; 3417 int found; 3418 3419 found = 0; 3420 3421 /* 3422 * We encode the backend type as the ioctl type for backend 3423 * ioctls. So parse it out here, and then search for a 3424 * backend of this type. 3425 */ 3426 type = _IOC_TYPE(cmd); 3427 3428 STAILQ_FOREACH(backend, &softc->be_list, links) { 3429 if (backend->type == type) { 3430 found = 1; 3431 break; 3432 } 3433 } 3434 if (found == 0) { 3435 printf("ctl: unknown ioctl command %#lx or backend " 3436 "%d\n", cmd, type); 3437 retval = EINVAL; 3438 break; 3439 } 3440 retval = backend->ioctl(dev, cmd, addr, flag, td); 3441#endif 3442 retval = ENOTTY; 3443 break; 3444 } 3445 } 3446 return (retval); 3447} 3448 3449uint32_t 3450ctl_get_initindex(struct ctl_nexus *nexus) 3451{ 3452 return (nexus->initid + (nexus->targ_port * CTL_MAX_INIT_PER_PORT)); 3453} 3454 3455int 3456ctl_lun_map_init(struct ctl_port *port) 3457{ 3458 struct ctl_softc *softc = port->ctl_softc; 3459 struct ctl_lun *lun; 3460 uint32_t i; 3461 3462 if (port->lun_map == NULL) 3463 port->lun_map = malloc(sizeof(uint32_t) * CTL_MAX_LUNS, 3464 M_CTL, M_NOWAIT); 3465 if (port->lun_map == NULL) 3466 return (ENOMEM); 3467 for (i = 0; i < CTL_MAX_LUNS; i++) 3468 port->lun_map[i] = UINT32_MAX; 3469 if (port->status & CTL_PORT_STATUS_ONLINE) { 3470 if (port->lun_disable != NULL) { 3471 STAILQ_FOREACH(lun, &softc->lun_list, links) 3472 port->lun_disable(port->targ_lun_arg, lun->lun); 3473 } 3474 ctl_isc_announce_port(port); 3475 } 3476 return (0); 3477} 3478 3479int 3480ctl_lun_map_deinit(struct ctl_port *port) 3481{ 3482 struct ctl_softc *softc = port->ctl_softc; 3483 struct ctl_lun *lun; 3484 3485 if (port->lun_map == NULL) 3486 return (0); 3487 free(port->lun_map, M_CTL); 3488 port->lun_map = NULL; 3489 if (port->status & CTL_PORT_STATUS_ONLINE) { 3490 if (port->lun_enable != NULL) { 3491 STAILQ_FOREACH(lun, &softc->lun_list, links) 3492 port->lun_enable(port->targ_lun_arg, lun->lun); 3493 } 3494 ctl_isc_announce_port(port); 3495 } 3496 return (0); 3497} 3498 3499int 3500ctl_lun_map_set(struct ctl_port *port, uint32_t plun, uint32_t glun) 3501{ 3502 int status; 3503 uint32_t old; 3504 3505 if (port->lun_map == NULL) { 3506 status = ctl_lun_map_init(port); 3507 if (status != 0) 3508 return (status); 3509 } 3510 old = port->lun_map[plun]; 3511 port->lun_map[plun] = glun; 3512 if ((port->status & CTL_PORT_STATUS_ONLINE) && old >= CTL_MAX_LUNS) { 3513 if (port->lun_enable != NULL) 3514 port->lun_enable(port->targ_lun_arg, plun); 3515 ctl_isc_announce_port(port); 3516 } 3517 return (0); 3518} 3519 3520int 3521ctl_lun_map_unset(struct ctl_port *port, uint32_t plun) 3522{ 3523 uint32_t old; 3524 3525 if (port->lun_map == NULL) 3526 return (0); 3527 old = port->lun_map[plun]; 3528 port->lun_map[plun] = UINT32_MAX; 3529 if ((port->status & CTL_PORT_STATUS_ONLINE) && old < CTL_MAX_LUNS) { 3530 if (port->lun_disable != NULL) 3531 port->lun_disable(port->targ_lun_arg, plun); 3532 ctl_isc_announce_port(port); 3533 } 3534 return (0); 3535} 3536 3537uint32_t 3538ctl_lun_map_from_port(struct ctl_port *port, uint32_t lun_id) 3539{ 3540 3541 if (port == NULL) 3542 return (UINT32_MAX); 3543 if (port->lun_map == NULL || lun_id >= CTL_MAX_LUNS) 3544 return (lun_id); 3545 return (port->lun_map[lun_id]); 3546} 3547 3548uint32_t 3549ctl_lun_map_to_port(struct ctl_port *port, uint32_t lun_id) 3550{ 3551 uint32_t i; 3552 3553 if (port == NULL) 3554 return (UINT32_MAX); 3555 if (port->lun_map == NULL) 3556 return (lun_id); 3557 for (i = 0; i < CTL_MAX_LUNS; i++) { 3558 if (port->lun_map[i] == lun_id) 3559 return (i); 3560 } 3561 return (UINT32_MAX); 3562} 3563 3564uint32_t 3565ctl_decode_lun(uint64_t encoded) 3566{ 3567 uint8_t lun[8]; 3568 uint32_t result = 0xffffffff; 3569 3570 be64enc(lun, encoded); 3571 switch (lun[0] & RPL_LUNDATA_ATYP_MASK) { 3572 case RPL_LUNDATA_ATYP_PERIPH: 3573 if ((lun[0] & 0x3f) == 0 && lun[2] == 0 && lun[3] == 0 && 3574 lun[4] == 0 && lun[5] == 0 && lun[6] == 0 && lun[7] == 0) 3575 result = lun[1]; 3576 break; 3577 case RPL_LUNDATA_ATYP_FLAT: 3578 if (lun[2] == 0 && lun[3] == 0 && lun[4] == 0 && lun[5] == 0 && 3579 lun[6] == 0 && lun[7] == 0) 3580 result = ((lun[0] & 0x3f) << 8) + lun[1]; 3581 break; 3582 case RPL_LUNDATA_ATYP_EXTLUN: 3583 switch (lun[0] & RPL_LUNDATA_EXT_EAM_MASK) { 3584 case 0x02: 3585 switch (lun[0] & RPL_LUNDATA_EXT_LEN_MASK) { 3586 case 0x00: 3587 result = lun[1]; 3588 break; 3589 case 0x10: 3590 result = (lun[1] << 16) + (lun[2] << 8) + 3591 lun[3]; 3592 break; 3593 case 0x20: 3594 if (lun[1] == 0 && lun[6] == 0 && lun[7] == 0) 3595 result = (lun[2] << 24) + 3596 (lun[3] << 16) + (lun[4] << 8) + 3597 lun[5]; 3598 break; 3599 } 3600 break; 3601 case RPL_LUNDATA_EXT_EAM_NOT_SPEC: 3602 result = 0xffffffff; 3603 break; 3604 } 3605 break; 3606 } 3607 return (result); 3608} 3609 3610uint64_t 3611ctl_encode_lun(uint32_t decoded) 3612{ 3613 uint64_t l = decoded; 3614 3615 if (l <= 0xff) 3616 return (((uint64_t)RPL_LUNDATA_ATYP_PERIPH << 56) | (l << 48)); 3617 if (l <= 0x3fff) 3618 return (((uint64_t)RPL_LUNDATA_ATYP_FLAT << 56) | (l << 48)); 3619 if (l <= 0xffffff) 3620 return (((uint64_t)(RPL_LUNDATA_ATYP_EXTLUN | 0x12) << 56) | 3621 (l << 32)); 3622 return ((((uint64_t)RPL_LUNDATA_ATYP_EXTLUN | 0x22) << 56) | (l << 16)); 3623} 3624 3625static struct ctl_port * 3626ctl_io_port(struct ctl_io_hdr *io_hdr) 3627{ 3628 3629 return (control_softc->ctl_ports[io_hdr->nexus.targ_port]); 3630} 3631 3632int 3633ctl_ffz(uint32_t *mask, uint32_t first, uint32_t last) 3634{ 3635 int i; 3636 3637 for (i = first; i < last; i++) { 3638 if ((mask[i / 32] & (1 << (i % 32))) == 0) 3639 return (i); 3640 } 3641 return (-1); 3642} 3643 3644int 3645ctl_set_mask(uint32_t *mask, uint32_t bit) 3646{ 3647 uint32_t chunk, piece; 3648 3649 chunk = bit >> 5; 3650 piece = bit % (sizeof(uint32_t) * 8); 3651 3652 if ((mask[chunk] & (1 << piece)) != 0) 3653 return (-1); 3654 else 3655 mask[chunk] |= (1 << piece); 3656 3657 return (0); 3658} 3659 3660int 3661ctl_clear_mask(uint32_t *mask, uint32_t bit) 3662{ 3663 uint32_t chunk, piece; 3664 3665 chunk = bit >> 5; 3666 piece = bit % (sizeof(uint32_t) * 8); 3667 3668 if ((mask[chunk] & (1 << piece)) == 0) 3669 return (-1); 3670 else 3671 mask[chunk] &= ~(1 << piece); 3672 3673 return (0); 3674} 3675 3676int 3677ctl_is_set(uint32_t *mask, uint32_t bit) 3678{ 3679 uint32_t chunk, piece; 3680 3681 chunk = bit >> 5; 3682 piece = bit % (sizeof(uint32_t) * 8); 3683 3684 if ((mask[chunk] & (1 << piece)) == 0) 3685 return (0); 3686 else 3687 return (1); 3688} 3689 3690static uint64_t 3691ctl_get_prkey(struct ctl_lun *lun, uint32_t residx) 3692{ 3693 uint64_t *t; 3694 3695 t = lun->pr_keys[residx/CTL_MAX_INIT_PER_PORT]; 3696 if (t == NULL) 3697 return (0); 3698 return (t[residx % CTL_MAX_INIT_PER_PORT]); 3699} 3700 3701static void 3702ctl_clr_prkey(struct ctl_lun *lun, uint32_t residx) 3703{ 3704 uint64_t *t; 3705 3706 t = lun->pr_keys[residx/CTL_MAX_INIT_PER_PORT]; 3707 if (t == NULL) 3708 return; 3709 t[residx % CTL_MAX_INIT_PER_PORT] = 0; 3710} 3711 3712static void 3713ctl_alloc_prkey(struct ctl_lun *lun, uint32_t residx) 3714{ 3715 uint64_t *p; 3716 u_int i; 3717 3718 i = residx/CTL_MAX_INIT_PER_PORT; 3719 if (lun->pr_keys[i] != NULL) 3720 return; 3721 mtx_unlock(&lun->lun_lock); 3722 p = malloc(sizeof(uint64_t) * CTL_MAX_INIT_PER_PORT, M_CTL, 3723 M_WAITOK | M_ZERO); 3724 mtx_lock(&lun->lun_lock); 3725 if (lun->pr_keys[i] == NULL) 3726 lun->pr_keys[i] = p; 3727 else 3728 free(p, M_CTL); 3729} 3730 3731static void 3732ctl_set_prkey(struct ctl_lun *lun, uint32_t residx, uint64_t key) 3733{ 3734 uint64_t *t; 3735 3736 t = lun->pr_keys[residx/CTL_MAX_INIT_PER_PORT]; 3737 KASSERT(t != NULL, ("prkey %d is not allocated", residx)); 3738 t[residx % CTL_MAX_INIT_PER_PORT] = key; 3739} 3740 3741/* 3742 * ctl_softc, pool_name, total_ctl_io are passed in. 3743 * npool is passed out. 3744 */ 3745int 3746ctl_pool_create(struct ctl_softc *ctl_softc, const char *pool_name, 3747 uint32_t total_ctl_io, void **npool) 3748{ 3749#ifdef IO_POOLS 3750 struct ctl_io_pool *pool; 3751 3752 pool = (struct ctl_io_pool *)malloc(sizeof(*pool), M_CTL, 3753 M_NOWAIT | M_ZERO); 3754 if (pool == NULL) 3755 return (ENOMEM); 3756 3757 snprintf(pool->name, sizeof(pool->name), "CTL IO %s", pool_name); 3758 pool->ctl_softc = ctl_softc; 3759 pool->zone = uma_zsecond_create(pool->name, NULL, 3760 NULL, NULL, NULL, ctl_softc->io_zone); 3761 /* uma_prealloc(pool->zone, total_ctl_io); */ 3762 3763 *npool = pool; 3764#else 3765 *npool = ctl_softc->io_zone; 3766#endif 3767 return (0); 3768} 3769 3770void 3771ctl_pool_free(struct ctl_io_pool *pool) 3772{ 3773 3774 if (pool == NULL) 3775 return; 3776 3777#ifdef IO_POOLS 3778 uma_zdestroy(pool->zone); 3779 free(pool, M_CTL); 3780#endif 3781} 3782 3783union ctl_io * 3784ctl_alloc_io(void *pool_ref) 3785{ 3786 union ctl_io *io; 3787#ifdef IO_POOLS 3788 struct ctl_io_pool *pool = (struct ctl_io_pool *)pool_ref; 3789 3790 io = uma_zalloc(pool->zone, M_WAITOK); 3791#else 3792 io = uma_zalloc((uma_zone_t)pool_ref, M_WAITOK); 3793#endif 3794 if (io != NULL) 3795 io->io_hdr.pool = pool_ref; 3796 return (io); 3797} 3798 3799union ctl_io * 3800ctl_alloc_io_nowait(void *pool_ref) 3801{ 3802 union ctl_io *io; 3803#ifdef IO_POOLS 3804 struct ctl_io_pool *pool = (struct ctl_io_pool *)pool_ref; 3805 3806 io = uma_zalloc(pool->zone, M_NOWAIT); 3807#else 3808 io = uma_zalloc((uma_zone_t)pool_ref, M_NOWAIT); 3809#endif 3810 if (io != NULL) 3811 io->io_hdr.pool = pool_ref; 3812 return (io); 3813} 3814 3815void 3816ctl_free_io(union ctl_io *io) 3817{ 3818#ifdef IO_POOLS 3819 struct ctl_io_pool *pool; 3820#endif 3821 3822 if (io == NULL) 3823 return; 3824 3825#ifdef IO_POOLS 3826 pool = (struct ctl_io_pool *)io->io_hdr.pool; 3827 uma_zfree(pool->zone, io); 3828#else 3829 uma_zfree((uma_zone_t)io->io_hdr.pool, io); 3830#endif 3831} 3832 3833void 3834ctl_zero_io(union ctl_io *io) 3835{ 3836 void *pool_ref; 3837 3838 if (io == NULL) 3839 return; 3840 3841 /* 3842 * May need to preserve linked list pointers at some point too. 3843 */ 3844 pool_ref = io->io_hdr.pool; 3845 memset(io, 0, sizeof(*io)); 3846 io->io_hdr.pool = pool_ref; 3847} 3848 3849int 3850ctl_expand_number(const char *buf, uint64_t *num) 3851{ 3852 char *endptr; 3853 uint64_t number; 3854 unsigned shift; 3855 3856 number = strtoq(buf, &endptr, 0); 3857 3858 switch (tolower((unsigned char)*endptr)) { 3859 case 'e': 3860 shift = 60; 3861 break; 3862 case 'p': 3863 shift = 50; 3864 break; 3865 case 't': 3866 shift = 40; 3867 break; 3868 case 'g': 3869 shift = 30; 3870 break; 3871 case 'm': 3872 shift = 20; 3873 break; 3874 case 'k': 3875 shift = 10; 3876 break; 3877 case 'b': 3878 case '\0': /* No unit. */ 3879 *num = number; 3880 return (0); 3881 default: 3882 /* Unrecognized unit. */ 3883 return (-1); 3884 } 3885 3886 if ((number << shift) >> shift != number) { 3887 /* Overflow */ 3888 return (-1); 3889 } 3890 *num = number << shift; 3891 return (0); 3892} 3893 3894 3895/* 3896 * This routine could be used in the future to load default and/or saved 3897 * mode page parameters for a particuar lun. 3898 */ 3899static int 3900ctl_init_page_index(struct ctl_lun *lun) 3901{ 3902 int i, page_code; 3903 struct ctl_page_index *page_index; 3904 const char *value; 3905 uint64_t ival; 3906 3907 memcpy(&lun->mode_pages.index, page_index_template, 3908 sizeof(page_index_template)); 3909 3910 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 3911 3912 page_index = &lun->mode_pages.index[i]; 3913 if (lun->be_lun->lun_type == T_DIRECT && 3914 (page_index->page_flags & CTL_PAGE_FLAG_DIRECT) == 0) 3915 continue; 3916 if (lun->be_lun->lun_type == T_PROCESSOR && 3917 (page_index->page_flags & CTL_PAGE_FLAG_PROC) == 0) 3918 continue; 3919 if (lun->be_lun->lun_type == T_CDROM && 3920 (page_index->page_flags & CTL_PAGE_FLAG_CDROM) == 0) 3921 continue; 3922 3923 page_code = page_index->page_code & SMPH_PC_MASK; 3924 switch (page_code) { 3925 case SMS_RW_ERROR_RECOVERY_PAGE: { 3926 KASSERT(page_index->subpage == SMS_SUBPAGE_PAGE_0, 3927 ("subpage %#x for page %#x is incorrect!", 3928 page_index->subpage, page_code)); 3929 memcpy(&lun->mode_pages.rw_er_page[CTL_PAGE_CURRENT], 3930 &rw_er_page_default, 3931 sizeof(rw_er_page_default)); 3932 memcpy(&lun->mode_pages.rw_er_page[CTL_PAGE_CHANGEABLE], 3933 &rw_er_page_changeable, 3934 sizeof(rw_er_page_changeable)); 3935 memcpy(&lun->mode_pages.rw_er_page[CTL_PAGE_DEFAULT], 3936 &rw_er_page_default, 3937 sizeof(rw_er_page_default)); 3938 memcpy(&lun->mode_pages.rw_er_page[CTL_PAGE_SAVED], 3939 &rw_er_page_default, 3940 sizeof(rw_er_page_default)); 3941 page_index->page_data = 3942 (uint8_t *)lun->mode_pages.rw_er_page; 3943 break; 3944 } 3945 case SMS_FORMAT_DEVICE_PAGE: { 3946 struct scsi_format_page *format_page; 3947 3948 KASSERT(page_index->subpage == SMS_SUBPAGE_PAGE_0, 3949 ("subpage %#x for page %#x is incorrect!", 3950 page_index->subpage, page_code)); 3951 3952 /* 3953 * Sectors per track are set above. Bytes per 3954 * sector need to be set here on a per-LUN basis. 3955 */ 3956 memcpy(&lun->mode_pages.format_page[CTL_PAGE_CURRENT], 3957 &format_page_default, 3958 sizeof(format_page_default)); 3959 memcpy(&lun->mode_pages.format_page[ 3960 CTL_PAGE_CHANGEABLE], &format_page_changeable, 3961 sizeof(format_page_changeable)); 3962 memcpy(&lun->mode_pages.format_page[CTL_PAGE_DEFAULT], 3963 &format_page_default, 3964 sizeof(format_page_default)); 3965 memcpy(&lun->mode_pages.format_page[CTL_PAGE_SAVED], 3966 &format_page_default, 3967 sizeof(format_page_default)); 3968 3969 format_page = &lun->mode_pages.format_page[ 3970 CTL_PAGE_CURRENT]; 3971 scsi_ulto2b(lun->be_lun->blocksize, 3972 format_page->bytes_per_sector); 3973 3974 format_page = &lun->mode_pages.format_page[ 3975 CTL_PAGE_DEFAULT]; 3976 scsi_ulto2b(lun->be_lun->blocksize, 3977 format_page->bytes_per_sector); 3978 3979 format_page = &lun->mode_pages.format_page[ 3980 CTL_PAGE_SAVED]; 3981 scsi_ulto2b(lun->be_lun->blocksize, 3982 format_page->bytes_per_sector); 3983 3984 page_index->page_data = 3985 (uint8_t *)lun->mode_pages.format_page; 3986 break; 3987 } 3988 case SMS_RIGID_DISK_PAGE: { 3989 struct scsi_rigid_disk_page *rigid_disk_page; 3990 uint32_t sectors_per_cylinder; 3991 uint64_t cylinders; 3992#ifndef __XSCALE__ 3993 int shift; 3994#endif /* !__XSCALE__ */ 3995 3996 KASSERT(page_index->subpage == SMS_SUBPAGE_PAGE_0, 3997 ("subpage %#x for page %#x is incorrect!", 3998 page_index->subpage, page_code)); 3999 4000 /* 4001 * Rotation rate and sectors per track are set 4002 * above. We calculate the cylinders here based on 4003 * capacity. Due to the number of heads and 4004 * sectors per track we're using, smaller arrays 4005 * may turn out to have 0 cylinders. Linux and 4006 * FreeBSD don't pay attention to these mode pages 4007 * to figure out capacity, but Solaris does. It 4008 * seems to deal with 0 cylinders just fine, and 4009 * works out a fake geometry based on the capacity. 4010 */ 4011 memcpy(&lun->mode_pages.rigid_disk_page[ 4012 CTL_PAGE_DEFAULT], &rigid_disk_page_default, 4013 sizeof(rigid_disk_page_default)); 4014 memcpy(&lun->mode_pages.rigid_disk_page[ 4015 CTL_PAGE_CHANGEABLE],&rigid_disk_page_changeable, 4016 sizeof(rigid_disk_page_changeable)); 4017 4018 sectors_per_cylinder = CTL_DEFAULT_SECTORS_PER_TRACK * 4019 CTL_DEFAULT_HEADS; 4020 4021 /* 4022 * The divide method here will be more accurate, 4023 * probably, but results in floating point being 4024 * used in the kernel on i386 (__udivdi3()). On the 4025 * XScale, though, __udivdi3() is implemented in 4026 * software. 4027 * 4028 * The shift method for cylinder calculation is 4029 * accurate if sectors_per_cylinder is a power of 4030 * 2. Otherwise it might be slightly off -- you 4031 * might have a bit of a truncation problem. 4032 */ 4033#ifdef __XSCALE__ 4034 cylinders = (lun->be_lun->maxlba + 1) / 4035 sectors_per_cylinder; 4036#else 4037 for (shift = 31; shift > 0; shift--) { 4038 if (sectors_per_cylinder & (1 << shift)) 4039 break; 4040 } 4041 cylinders = (lun->be_lun->maxlba + 1) >> shift; 4042#endif 4043 4044 /* 4045 * We've basically got 3 bytes, or 24 bits for the 4046 * cylinder size in the mode page. If we're over, 4047 * just round down to 2^24. 4048 */ 4049 if (cylinders > 0xffffff) 4050 cylinders = 0xffffff; 4051 4052 rigid_disk_page = &lun->mode_pages.rigid_disk_page[ 4053 CTL_PAGE_DEFAULT]; 4054 scsi_ulto3b(cylinders, rigid_disk_page->cylinders); 4055 4056 if ((value = ctl_get_opt(&lun->be_lun->options, 4057 "rpm")) != NULL) { 4058 scsi_ulto2b(strtol(value, NULL, 0), 4059 rigid_disk_page->rotation_rate); 4060 } 4061 4062 memcpy(&lun->mode_pages.rigid_disk_page[CTL_PAGE_CURRENT], 4063 &lun->mode_pages.rigid_disk_page[CTL_PAGE_DEFAULT], 4064 sizeof(rigid_disk_page_default)); 4065 memcpy(&lun->mode_pages.rigid_disk_page[CTL_PAGE_SAVED], 4066 &lun->mode_pages.rigid_disk_page[CTL_PAGE_DEFAULT], 4067 sizeof(rigid_disk_page_default)); 4068 4069 page_index->page_data = 4070 (uint8_t *)lun->mode_pages.rigid_disk_page; 4071 break; 4072 } 4073 case SMS_VERIFY_ERROR_RECOVERY_PAGE: { 4074 KASSERT(page_index->subpage == SMS_SUBPAGE_PAGE_0, 4075 ("subpage %#x for page %#x is incorrect!", 4076 page_index->subpage, page_code)); 4077 memcpy(&lun->mode_pages.verify_er_page[CTL_PAGE_CURRENT], 4078 &verify_er_page_default, 4079 sizeof(verify_er_page_default)); 4080 memcpy(&lun->mode_pages.verify_er_page[CTL_PAGE_CHANGEABLE], 4081 &verify_er_page_changeable, 4082 sizeof(verify_er_page_changeable)); 4083 memcpy(&lun->mode_pages.verify_er_page[CTL_PAGE_DEFAULT], 4084 &verify_er_page_default, 4085 sizeof(verify_er_page_default)); 4086 memcpy(&lun->mode_pages.verify_er_page[CTL_PAGE_SAVED], 4087 &verify_er_page_default, 4088 sizeof(verify_er_page_default)); 4089 page_index->page_data = 4090 (uint8_t *)lun->mode_pages.verify_er_page; 4091 break; 4092 } 4093 case SMS_CACHING_PAGE: { 4094 struct scsi_caching_page *caching_page; 4095 4096 KASSERT(page_index->subpage == SMS_SUBPAGE_PAGE_0, 4097 ("subpage %#x for page %#x is incorrect!", 4098 page_index->subpage, page_code)); 4099 memcpy(&lun->mode_pages.caching_page[CTL_PAGE_DEFAULT], 4100 &caching_page_default, 4101 sizeof(caching_page_default)); 4102 memcpy(&lun->mode_pages.caching_page[ 4103 CTL_PAGE_CHANGEABLE], &caching_page_changeable, 4104 sizeof(caching_page_changeable)); 4105 memcpy(&lun->mode_pages.caching_page[CTL_PAGE_SAVED], 4106 &caching_page_default, 4107 sizeof(caching_page_default)); 4108 caching_page = &lun->mode_pages.caching_page[ 4109 CTL_PAGE_SAVED]; 4110 value = ctl_get_opt(&lun->be_lun->options, "writecache"); 4111 if (value != NULL && strcmp(value, "off") == 0) 4112 caching_page->flags1 &= ~SCP_WCE; 4113 value = ctl_get_opt(&lun->be_lun->options, "readcache"); 4114 if (value != NULL && strcmp(value, "off") == 0) 4115 caching_page->flags1 |= SCP_RCD; 4116 memcpy(&lun->mode_pages.caching_page[CTL_PAGE_CURRENT], 4117 &lun->mode_pages.caching_page[CTL_PAGE_SAVED], 4118 sizeof(caching_page_default)); 4119 page_index->page_data = 4120 (uint8_t *)lun->mode_pages.caching_page; 4121 break; 4122 } 4123 case SMS_CONTROL_MODE_PAGE: { 4124 switch (page_index->subpage) { 4125 case SMS_SUBPAGE_PAGE_0: { 4126 struct scsi_control_page *control_page; 4127 4128 memcpy(&lun->mode_pages.control_page[ 4129 CTL_PAGE_DEFAULT], 4130 &control_page_default, 4131 sizeof(control_page_default)); 4132 memcpy(&lun->mode_pages.control_page[ 4133 CTL_PAGE_CHANGEABLE], 4134 &control_page_changeable, 4135 sizeof(control_page_changeable)); 4136 memcpy(&lun->mode_pages.control_page[ 4137 CTL_PAGE_SAVED], 4138 &control_page_default, 4139 sizeof(control_page_default)); 4140 control_page = &lun->mode_pages.control_page[ 4141 CTL_PAGE_SAVED]; 4142 value = ctl_get_opt(&lun->be_lun->options, 4143 "reordering"); 4144 if (value != NULL && 4145 strcmp(value, "unrestricted") == 0) { 4146 control_page->queue_flags &= 4147 ~SCP_QUEUE_ALG_MASK; 4148 control_page->queue_flags |= 4149 SCP_QUEUE_ALG_UNRESTRICTED; 4150 } 4151 memcpy(&lun->mode_pages.control_page[ 4152 CTL_PAGE_CURRENT], 4153 &lun->mode_pages.control_page[ 4154 CTL_PAGE_SAVED], 4155 sizeof(control_page_default)); 4156 page_index->page_data = 4157 (uint8_t *)lun->mode_pages.control_page; 4158 break; 4159 } 4160 case 0x01: 4161 memcpy(&lun->mode_pages.control_ext_page[ 4162 CTL_PAGE_DEFAULT], 4163 &control_ext_page_default, 4164 sizeof(control_ext_page_default)); 4165 memcpy(&lun->mode_pages.control_ext_page[ 4166 CTL_PAGE_CHANGEABLE], 4167 &control_ext_page_changeable, 4168 sizeof(control_ext_page_changeable)); 4169 memcpy(&lun->mode_pages.control_ext_page[ 4170 CTL_PAGE_SAVED], 4171 &control_ext_page_default, 4172 sizeof(control_ext_page_default)); 4173 memcpy(&lun->mode_pages.control_ext_page[ 4174 CTL_PAGE_CURRENT], 4175 &lun->mode_pages.control_ext_page[ 4176 CTL_PAGE_SAVED], 4177 sizeof(control_ext_page_default)); 4178 page_index->page_data = 4179 (uint8_t *)lun->mode_pages.control_ext_page; 4180 break; 4181 default: 4182 panic("subpage %#x for page %#x is incorrect!", 4183 page_index->subpage, page_code); 4184 } 4185 break; 4186 } 4187 case SMS_INFO_EXCEPTIONS_PAGE: { 4188 switch (page_index->subpage) { 4189 case SMS_SUBPAGE_PAGE_0: 4190 memcpy(&lun->mode_pages.ie_page[CTL_PAGE_CURRENT], 4191 &ie_page_default, 4192 sizeof(ie_page_default)); 4193 memcpy(&lun->mode_pages.ie_page[ 4194 CTL_PAGE_CHANGEABLE], &ie_page_changeable, 4195 sizeof(ie_page_changeable)); 4196 memcpy(&lun->mode_pages.ie_page[CTL_PAGE_DEFAULT], 4197 &ie_page_default, 4198 sizeof(ie_page_default)); 4199 memcpy(&lun->mode_pages.ie_page[CTL_PAGE_SAVED], 4200 &ie_page_default, 4201 sizeof(ie_page_default)); 4202 page_index->page_data = 4203 (uint8_t *)lun->mode_pages.ie_page; 4204 break; 4205 case 0x02: { 4206 struct ctl_logical_block_provisioning_page *page; 4207 4208 memcpy(&lun->mode_pages.lbp_page[CTL_PAGE_DEFAULT], 4209 &lbp_page_default, 4210 sizeof(lbp_page_default)); 4211 memcpy(&lun->mode_pages.lbp_page[ 4212 CTL_PAGE_CHANGEABLE], &lbp_page_changeable, 4213 sizeof(lbp_page_changeable)); 4214 memcpy(&lun->mode_pages.lbp_page[CTL_PAGE_SAVED], 4215 &lbp_page_default, 4216 sizeof(lbp_page_default)); 4217 page = &lun->mode_pages.lbp_page[CTL_PAGE_SAVED]; 4218 value = ctl_get_opt(&lun->be_lun->options, 4219 "avail-threshold"); 4220 if (value != NULL && 4221 ctl_expand_number(value, &ival) == 0) { 4222 page->descr[0].flags |= SLBPPD_ENABLED | 4223 SLBPPD_ARMING_DEC; 4224 if (lun->be_lun->blocksize) 4225 ival /= lun->be_lun->blocksize; 4226 else 4227 ival /= 512; 4228 scsi_ulto4b(ival >> CTL_LBP_EXPONENT, 4229 page->descr[0].count); 4230 } 4231 value = ctl_get_opt(&lun->be_lun->options, 4232 "used-threshold"); 4233 if (value != NULL && 4234 ctl_expand_number(value, &ival) == 0) { 4235 page->descr[1].flags |= SLBPPD_ENABLED | 4236 SLBPPD_ARMING_INC; 4237 if (lun->be_lun->blocksize) 4238 ival /= lun->be_lun->blocksize; 4239 else 4240 ival /= 512; 4241 scsi_ulto4b(ival >> CTL_LBP_EXPONENT, 4242 page->descr[1].count); 4243 } 4244 value = ctl_get_opt(&lun->be_lun->options, 4245 "pool-avail-threshold"); 4246 if (value != NULL && 4247 ctl_expand_number(value, &ival) == 0) { 4248 page->descr[2].flags |= SLBPPD_ENABLED | 4249 SLBPPD_ARMING_DEC; 4250 if (lun->be_lun->blocksize) 4251 ival /= lun->be_lun->blocksize; 4252 else 4253 ival /= 512; 4254 scsi_ulto4b(ival >> CTL_LBP_EXPONENT, 4255 page->descr[2].count); 4256 } 4257 value = ctl_get_opt(&lun->be_lun->options, 4258 "pool-used-threshold"); 4259 if (value != NULL && 4260 ctl_expand_number(value, &ival) == 0) { 4261 page->descr[3].flags |= SLBPPD_ENABLED | 4262 SLBPPD_ARMING_INC; 4263 if (lun->be_lun->blocksize) 4264 ival /= lun->be_lun->blocksize; 4265 else 4266 ival /= 512; 4267 scsi_ulto4b(ival >> CTL_LBP_EXPONENT, 4268 page->descr[3].count); 4269 } 4270 memcpy(&lun->mode_pages.lbp_page[CTL_PAGE_CURRENT], 4271 &lun->mode_pages.lbp_page[CTL_PAGE_SAVED], 4272 sizeof(lbp_page_default)); 4273 page_index->page_data = 4274 (uint8_t *)lun->mode_pages.lbp_page; 4275 break; 4276 } 4277 default: 4278 panic("subpage %#x for page %#x is incorrect!", 4279 page_index->subpage, page_code); 4280 } 4281 break; 4282 } 4283 case SMS_CDDVD_CAPS_PAGE:{ 4284 KASSERT(page_index->subpage == SMS_SUBPAGE_PAGE_0, 4285 ("subpage %#x for page %#x is incorrect!", 4286 page_index->subpage, page_code)); 4287 memcpy(&lun->mode_pages.cddvd_page[CTL_PAGE_DEFAULT], 4288 &cddvd_page_default, 4289 sizeof(cddvd_page_default)); 4290 memcpy(&lun->mode_pages.cddvd_page[ 4291 CTL_PAGE_CHANGEABLE], &cddvd_page_changeable, 4292 sizeof(cddvd_page_changeable)); 4293 memcpy(&lun->mode_pages.cddvd_page[CTL_PAGE_SAVED], 4294 &cddvd_page_default, 4295 sizeof(cddvd_page_default)); 4296 memcpy(&lun->mode_pages.cddvd_page[CTL_PAGE_CURRENT], 4297 &lun->mode_pages.cddvd_page[CTL_PAGE_SAVED], 4298 sizeof(cddvd_page_default)); 4299 page_index->page_data = 4300 (uint8_t *)lun->mode_pages.cddvd_page; 4301 break; 4302 } 4303 default: 4304 panic("invalid page code value %#x", page_code); 4305 } 4306 } 4307 4308 return (CTL_RETVAL_COMPLETE); 4309} 4310 4311static int 4312ctl_init_log_page_index(struct ctl_lun *lun) 4313{ 4314 struct ctl_page_index *page_index; 4315 int i, j, k, prev; 4316 4317 memcpy(&lun->log_pages.index, log_page_index_template, 4318 sizeof(log_page_index_template)); 4319 4320 prev = -1; 4321 for (i = 0, j = 0, k = 0; i < CTL_NUM_LOG_PAGES; i++) { 4322 4323 page_index = &lun->log_pages.index[i]; 4324 if (lun->be_lun->lun_type == T_DIRECT && 4325 (page_index->page_flags & CTL_PAGE_FLAG_DIRECT) == 0) 4326 continue; 4327 if (lun->be_lun->lun_type == T_PROCESSOR && 4328 (page_index->page_flags & CTL_PAGE_FLAG_PROC) == 0) 4329 continue; 4330 if (lun->be_lun->lun_type == T_CDROM && 4331 (page_index->page_flags & CTL_PAGE_FLAG_CDROM) == 0) 4332 continue; 4333 4334 if (page_index->page_code == SLS_LOGICAL_BLOCK_PROVISIONING && 4335 lun->backend->lun_attr == NULL) 4336 continue; 4337 4338 if (page_index->page_code != prev) { 4339 lun->log_pages.pages_page[j] = page_index->page_code; 4340 prev = page_index->page_code; 4341 j++; 4342 } 4343 lun->log_pages.subpages_page[k*2] = page_index->page_code; 4344 lun->log_pages.subpages_page[k*2+1] = page_index->subpage; 4345 k++; 4346 } 4347 lun->log_pages.index[0].page_data = &lun->log_pages.pages_page[0]; 4348 lun->log_pages.index[0].page_len = j; 4349 lun->log_pages.index[1].page_data = &lun->log_pages.subpages_page[0]; 4350 lun->log_pages.index[1].page_len = k * 2; 4351 lun->log_pages.index[2].page_data = &lun->log_pages.lbp_page[0]; 4352 lun->log_pages.index[2].page_len = 12*CTL_NUM_LBP_PARAMS; 4353 lun->log_pages.index[3].page_data = (uint8_t *)&lun->log_pages.stat_page; 4354 lun->log_pages.index[3].page_len = sizeof(lun->log_pages.stat_page); 4355 lun->log_pages.index[4].page_data = (uint8_t *)&lun->log_pages.ie_page; 4356 lun->log_pages.index[4].page_len = sizeof(lun->log_pages.ie_page); 4357 4358 return (CTL_RETVAL_COMPLETE); 4359} 4360 4361static int 4362hex2bin(const char *str, uint8_t *buf, int buf_size) 4363{ 4364 int i; 4365 u_char c; 4366 4367 memset(buf, 0, buf_size); 4368 while (isspace(str[0])) 4369 str++; 4370 if (str[0] == '0' && (str[1] == 'x' || str[1] == 'X')) 4371 str += 2; 4372 buf_size *= 2; 4373 for (i = 0; str[i] != 0 && i < buf_size; i++) { 4374 while (str[i] == '-') /* Skip dashes in UUIDs. */ 4375 str++; 4376 c = str[i]; 4377 if (isdigit(c)) 4378 c -= '0'; 4379 else if (isalpha(c)) 4380 c -= isupper(c) ? 'A' - 10 : 'a' - 10; 4381 else 4382 break; 4383 if (c >= 16) 4384 break; 4385 if ((i & 1) == 0) 4386 buf[i / 2] |= (c << 4); 4387 else 4388 buf[i / 2] |= c; 4389 } 4390 return ((i + 1) / 2); 4391} 4392 4393/* 4394 * LUN allocation. 4395 * 4396 * Requirements: 4397 * - caller allocates and zeros LUN storage, or passes in a NULL LUN if he 4398 * wants us to allocate the LUN and he can block. 4399 * - ctl_softc is always set 4400 * - be_lun is set if the LUN has a backend (needed for disk LUNs) 4401 * 4402 * Returns 0 for success, non-zero (errno) for failure. 4403 */ 4404static int 4405ctl_alloc_lun(struct ctl_softc *ctl_softc, struct ctl_lun *ctl_lun, 4406 struct ctl_be_lun *const be_lun) 4407{ 4408 struct ctl_lun *nlun, *lun; 4409 struct scsi_vpd_id_descriptor *desc; 4410 struct scsi_vpd_id_t10 *t10id; 4411 const char *eui, *naa, *scsiname, *uuid, *vendor, *value; 4412 int lun_number, i, lun_malloced; 4413 int devidlen, idlen1, idlen2 = 0, len; 4414 4415 if (be_lun == NULL) 4416 return (EINVAL); 4417 4418 /* 4419 * We currently only support Direct Access or Processor LUN types. 4420 */ 4421 switch (be_lun->lun_type) { 4422 case T_DIRECT: 4423 case T_PROCESSOR: 4424 case T_CDROM: 4425 break; 4426 case T_SEQUENTIAL: 4427 case T_CHANGER: 4428 default: 4429 be_lun->lun_config_status(be_lun->be_lun, 4430 CTL_LUN_CONFIG_FAILURE); 4431 break; 4432 } 4433 if (ctl_lun == NULL) { 4434 lun = malloc(sizeof(*lun), M_CTL, M_WAITOK); 4435 lun_malloced = 1; 4436 } else { 4437 lun_malloced = 0; 4438 lun = ctl_lun; 4439 } 4440 4441 memset(lun, 0, sizeof(*lun)); 4442 if (lun_malloced) 4443 lun->flags = CTL_LUN_MALLOCED; 4444 4445 /* Generate LUN ID. */ 4446 devidlen = max(CTL_DEVID_MIN_LEN, 4447 strnlen(be_lun->device_id, CTL_DEVID_LEN)); 4448 idlen1 = sizeof(*t10id) + devidlen; 4449 len = sizeof(struct scsi_vpd_id_descriptor) + idlen1; 4450 scsiname = ctl_get_opt(&be_lun->options, "scsiname"); 4451 if (scsiname != NULL) { 4452 idlen2 = roundup2(strlen(scsiname) + 1, 4); 4453 len += sizeof(struct scsi_vpd_id_descriptor) + idlen2; 4454 } 4455 eui = ctl_get_opt(&be_lun->options, "eui"); 4456 if (eui != NULL) { 4457 len += sizeof(struct scsi_vpd_id_descriptor) + 16; 4458 } 4459 naa = ctl_get_opt(&be_lun->options, "naa"); 4460 if (naa != NULL) { 4461 len += sizeof(struct scsi_vpd_id_descriptor) + 16; 4462 } 4463 uuid = ctl_get_opt(&be_lun->options, "uuid"); 4464 if (uuid != NULL) { 4465 len += sizeof(struct scsi_vpd_id_descriptor) + 18; 4466 } 4467 lun->lun_devid = malloc(sizeof(struct ctl_devid) + len, 4468 M_CTL, M_WAITOK | M_ZERO); 4469 desc = (struct scsi_vpd_id_descriptor *)lun->lun_devid->data; 4470 desc->proto_codeset = SVPD_ID_CODESET_ASCII; 4471 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | SVPD_ID_TYPE_T10; 4472 desc->length = idlen1; 4473 t10id = (struct scsi_vpd_id_t10 *)&desc->identifier[0]; 4474 memset(t10id->vendor, ' ', sizeof(t10id->vendor)); 4475 if ((vendor = ctl_get_opt(&be_lun->options, "vendor")) == NULL) { 4476 strncpy((char *)t10id->vendor, CTL_VENDOR, sizeof(t10id->vendor)); 4477 } else { 4478 strncpy(t10id->vendor, vendor, 4479 min(sizeof(t10id->vendor), strlen(vendor))); 4480 } 4481 strncpy((char *)t10id->vendor_spec_id, 4482 (char *)be_lun->device_id, devidlen); 4483 if (scsiname != NULL) { 4484 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 4485 desc->length); 4486 desc->proto_codeset = SVPD_ID_CODESET_UTF8; 4487 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | 4488 SVPD_ID_TYPE_SCSI_NAME; 4489 desc->length = idlen2; 4490 strlcpy(desc->identifier, scsiname, idlen2); 4491 } 4492 if (eui != NULL) { 4493 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 4494 desc->length); 4495 desc->proto_codeset = SVPD_ID_CODESET_BINARY; 4496 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | 4497 SVPD_ID_TYPE_EUI64; 4498 desc->length = hex2bin(eui, desc->identifier, 16); 4499 desc->length = desc->length > 12 ? 16 : 4500 (desc->length > 8 ? 12 : 8); 4501 len -= 16 - desc->length; 4502 } 4503 if (naa != NULL) { 4504 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 4505 desc->length); 4506 desc->proto_codeset = SVPD_ID_CODESET_BINARY; 4507 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | 4508 SVPD_ID_TYPE_NAA; 4509 desc->length = hex2bin(naa, desc->identifier, 16); 4510 desc->length = desc->length > 8 ? 16 : 8; 4511 len -= 16 - desc->length; 4512 } 4513 if (uuid != NULL) { 4514 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 4515 desc->length); 4516 desc->proto_codeset = SVPD_ID_CODESET_BINARY; 4517 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | 4518 SVPD_ID_TYPE_UUID; 4519 desc->identifier[0] = 0x10; 4520 hex2bin(uuid, &desc->identifier[2], 16); 4521 desc->length = 18; 4522 } 4523 lun->lun_devid->len = len; 4524 4525 mtx_lock(&ctl_softc->ctl_lock); 4526 /* 4527 * See if the caller requested a particular LUN number. If so, see 4528 * if it is available. Otherwise, allocate the first available LUN. 4529 */ 4530 if (be_lun->flags & CTL_LUN_FLAG_ID_REQ) { 4531 if ((be_lun->req_lun_id > (CTL_MAX_LUNS - 1)) 4532 || (ctl_is_set(ctl_softc->ctl_lun_mask, be_lun->req_lun_id))) { 4533 mtx_unlock(&ctl_softc->ctl_lock); 4534 if (be_lun->req_lun_id > (CTL_MAX_LUNS - 1)) { 4535 printf("ctl: requested LUN ID %d is higher " 4536 "than CTL_MAX_LUNS - 1 (%d)\n", 4537 be_lun->req_lun_id, CTL_MAX_LUNS - 1); 4538 } else { 4539 /* 4540 * XXX KDM return an error, or just assign 4541 * another LUN ID in this case?? 4542 */ 4543 printf("ctl: requested LUN ID %d is already " 4544 "in use\n", be_lun->req_lun_id); 4545 } 4546 if (lun->flags & CTL_LUN_MALLOCED) 4547 free(lun, M_CTL); 4548 be_lun->lun_config_status(be_lun->be_lun, 4549 CTL_LUN_CONFIG_FAILURE); 4550 return (ENOSPC); 4551 } 4552 lun_number = be_lun->req_lun_id; 4553 } else { 4554 lun_number = ctl_ffz(ctl_softc->ctl_lun_mask, 0, CTL_MAX_LUNS); 4555 if (lun_number == -1) { 4556 mtx_unlock(&ctl_softc->ctl_lock); 4557 printf("ctl: can't allocate LUN, out of LUNs\n"); 4558 if (lun->flags & CTL_LUN_MALLOCED) 4559 free(lun, M_CTL); 4560 be_lun->lun_config_status(be_lun->be_lun, 4561 CTL_LUN_CONFIG_FAILURE); 4562 return (ENOSPC); 4563 } 4564 } 4565 ctl_set_mask(ctl_softc->ctl_lun_mask, lun_number); 4566 4567 mtx_init(&lun->lun_lock, "CTL LUN", NULL, MTX_DEF); 4568 lun->lun = lun_number; 4569 lun->be_lun = be_lun; 4570 /* 4571 * The processor LUN is always enabled. Disk LUNs come on line 4572 * disabled, and must be enabled by the backend. 4573 */ 4574 lun->flags |= CTL_LUN_DISABLED; 4575 lun->backend = be_lun->be; 4576 be_lun->ctl_lun = lun; 4577 be_lun->lun_id = lun_number; 4578 atomic_add_int(&be_lun->be->num_luns, 1); 4579 if (be_lun->flags & CTL_LUN_FLAG_EJECTED) 4580 lun->flags |= CTL_LUN_EJECTED; 4581 if (be_lun->flags & CTL_LUN_FLAG_NO_MEDIA) 4582 lun->flags |= CTL_LUN_NO_MEDIA; 4583 if (be_lun->flags & CTL_LUN_FLAG_STOPPED) 4584 lun->flags |= CTL_LUN_STOPPED; 4585 4586 if (be_lun->flags & CTL_LUN_FLAG_PRIMARY) 4587 lun->flags |= CTL_LUN_PRIMARY_SC; 4588 4589 value = ctl_get_opt(&be_lun->options, "removable"); 4590 if (value != NULL) { 4591 if (strcmp(value, "on") == 0) 4592 lun->flags |= CTL_LUN_REMOVABLE; 4593 } else if (be_lun->lun_type == T_CDROM) 4594 lun->flags |= CTL_LUN_REMOVABLE; 4595 4596 lun->ctl_softc = ctl_softc; 4597#ifdef CTL_TIME_IO 4598 lun->last_busy = getsbinuptime(); 4599#endif 4600 TAILQ_INIT(&lun->ooa_queue); 4601 TAILQ_INIT(&lun->blocked_queue); 4602 STAILQ_INIT(&lun->error_list); 4603 lun->ie_reported = 1; 4604 callout_init_mtx(&lun->ie_callout, &lun->lun_lock, 0); 4605 ctl_tpc_lun_init(lun); 4606 4607 /* 4608 * Initialize the mode and log page index. 4609 */ 4610 ctl_init_page_index(lun); 4611 ctl_init_log_page_index(lun); 4612 4613 /* 4614 * Now, before we insert this lun on the lun list, set the lun 4615 * inventory changed UA for all other luns. 4616 */ 4617 STAILQ_FOREACH(nlun, &ctl_softc->lun_list, links) { 4618 mtx_lock(&nlun->lun_lock); 4619 ctl_est_ua_all(nlun, -1, CTL_UA_LUN_CHANGE); 4620 mtx_unlock(&nlun->lun_lock); 4621 } 4622 4623 STAILQ_INSERT_TAIL(&ctl_softc->lun_list, lun, links); 4624 4625 ctl_softc->ctl_luns[lun_number] = lun; 4626 4627 ctl_softc->num_luns++; 4628 4629 /* Setup statistics gathering */ 4630 lun->stats.device_type = be_lun->lun_type; 4631 lun->stats.lun_number = lun_number; 4632 lun->stats.blocksize = be_lun->blocksize; 4633 if (be_lun->blocksize == 0) 4634 lun->stats.flags = CTL_LUN_STATS_NO_BLOCKSIZE; 4635 for (i = 0;i < CTL_MAX_PORTS;i++) 4636 lun->stats.ports[i].targ_port = i; 4637 4638 mtx_unlock(&ctl_softc->ctl_lock); 4639 4640 lun->be_lun->lun_config_status(lun->be_lun->be_lun, CTL_LUN_CONFIG_OK); 4641 return (0); 4642} 4643 4644/* 4645 * Delete a LUN. 4646 * Assumptions: 4647 * - LUN has already been marked invalid and any pending I/O has been taken 4648 * care of. 4649 */ 4650static int 4651ctl_free_lun(struct ctl_lun *lun) 4652{ 4653 struct ctl_softc *softc; 4654 struct ctl_lun *nlun; 4655 int i; 4656 4657 softc = lun->ctl_softc; 4658 4659 mtx_assert(&softc->ctl_lock, MA_OWNED); 4660 4661 STAILQ_REMOVE(&softc->lun_list, lun, ctl_lun, links); 4662 4663 ctl_clear_mask(softc->ctl_lun_mask, lun->lun); 4664 4665 softc->ctl_luns[lun->lun] = NULL; 4666 4667 if (!TAILQ_EMPTY(&lun->ooa_queue)) 4668 panic("Freeing a LUN %p with outstanding I/O!!\n", lun); 4669 4670 softc->num_luns--; 4671 4672 /* 4673 * Tell the backend to free resources, if this LUN has a backend. 4674 */ 4675 atomic_subtract_int(&lun->be_lun->be->num_luns, 1); 4676 lun->be_lun->lun_shutdown(lun->be_lun->be_lun); 4677 4678 lun->ie_reportcnt = UINT32_MAX; 4679 callout_drain(&lun->ie_callout); 4680 4681 ctl_tpc_lun_shutdown(lun); 4682 mtx_destroy(&lun->lun_lock); 4683 free(lun->lun_devid, M_CTL); 4684 for (i = 0; i < CTL_MAX_PORTS; i++) 4685 free(lun->pending_ua[i], M_CTL); 4686 for (i = 0; i < CTL_MAX_PORTS; i++) 4687 free(lun->pr_keys[i], M_CTL); 4688 free(lun->write_buffer, M_CTL); 4689 if (lun->flags & CTL_LUN_MALLOCED) 4690 free(lun, M_CTL); 4691 4692 STAILQ_FOREACH(nlun, &softc->lun_list, links) { 4693 mtx_lock(&nlun->lun_lock); 4694 ctl_est_ua_all(nlun, -1, CTL_UA_LUN_CHANGE); 4695 mtx_unlock(&nlun->lun_lock); 4696 } 4697 4698 return (0); 4699} 4700 4701static void 4702ctl_create_lun(struct ctl_be_lun *be_lun) 4703{ 4704 4705 /* 4706 * ctl_alloc_lun() should handle all potential failure cases. 4707 */ 4708 ctl_alloc_lun(control_softc, NULL, be_lun); 4709} 4710 4711int 4712ctl_add_lun(struct ctl_be_lun *be_lun) 4713{ 4714 struct ctl_softc *softc = control_softc; 4715 4716 mtx_lock(&softc->ctl_lock); 4717 STAILQ_INSERT_TAIL(&softc->pending_lun_queue, be_lun, links); 4718 mtx_unlock(&softc->ctl_lock); 4719 wakeup(&softc->pending_lun_queue); 4720 4721 return (0); 4722} 4723 4724int 4725ctl_enable_lun(struct ctl_be_lun *be_lun) 4726{ 4727 struct ctl_softc *softc; 4728 struct ctl_port *port, *nport; 4729 struct ctl_lun *lun; 4730 int retval; 4731 4732 lun = (struct ctl_lun *)be_lun->ctl_lun; 4733 softc = lun->ctl_softc; 4734 4735 mtx_lock(&softc->ctl_lock); 4736 mtx_lock(&lun->lun_lock); 4737 if ((lun->flags & CTL_LUN_DISABLED) == 0) { 4738 /* 4739 * eh? Why did we get called if the LUN is already 4740 * enabled? 4741 */ 4742 mtx_unlock(&lun->lun_lock); 4743 mtx_unlock(&softc->ctl_lock); 4744 return (0); 4745 } 4746 lun->flags &= ~CTL_LUN_DISABLED; 4747 mtx_unlock(&lun->lun_lock); 4748 4749 STAILQ_FOREACH_SAFE(port, &softc->port_list, links, nport) { 4750 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0 || 4751 port->lun_map != NULL || port->lun_enable == NULL) 4752 continue; 4753 4754 /* 4755 * Drop the lock while we call the FETD's enable routine. 4756 * This can lead to a callback into CTL (at least in the 4757 * case of the internal initiator frontend. 4758 */ 4759 mtx_unlock(&softc->ctl_lock); 4760 retval = port->lun_enable(port->targ_lun_arg, lun->lun); 4761 mtx_lock(&softc->ctl_lock); 4762 if (retval != 0) { 4763 printf("%s: FETD %s port %d returned error " 4764 "%d for lun_enable on lun %jd\n", 4765 __func__, port->port_name, port->targ_port, 4766 retval, (intmax_t)lun->lun); 4767 } 4768 } 4769 4770 mtx_unlock(&softc->ctl_lock); 4771 ctl_isc_announce_lun(lun); 4772 4773 return (0); 4774} 4775 4776int 4777ctl_disable_lun(struct ctl_be_lun *be_lun) 4778{ 4779 struct ctl_softc *softc; 4780 struct ctl_port *port; 4781 struct ctl_lun *lun; 4782 int retval; 4783 4784 lun = (struct ctl_lun *)be_lun->ctl_lun; 4785 softc = lun->ctl_softc; 4786 4787 mtx_lock(&softc->ctl_lock); 4788 mtx_lock(&lun->lun_lock); 4789 if (lun->flags & CTL_LUN_DISABLED) { 4790 mtx_unlock(&lun->lun_lock); 4791 mtx_unlock(&softc->ctl_lock); 4792 return (0); 4793 } 4794 lun->flags |= CTL_LUN_DISABLED; 4795 mtx_unlock(&lun->lun_lock); 4796 4797 STAILQ_FOREACH(port, &softc->port_list, links) { 4798 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0 || 4799 port->lun_map != NULL || port->lun_disable == NULL) 4800 continue; 4801 4802 /* 4803 * Drop the lock before we call the frontend's disable 4804 * routine, to avoid lock order reversals. 4805 * 4806 * XXX KDM what happens if the frontend list changes while 4807 * we're traversing it? It's unlikely, but should be handled. 4808 */ 4809 mtx_unlock(&softc->ctl_lock); 4810 retval = port->lun_disable(port->targ_lun_arg, lun->lun); 4811 mtx_lock(&softc->ctl_lock); 4812 if (retval != 0) { 4813 printf("%s: FETD %s port %d returned error " 4814 "%d for lun_disable on lun %jd\n", 4815 __func__, port->port_name, port->targ_port, 4816 retval, (intmax_t)lun->lun); 4817 } 4818 } 4819 4820 mtx_unlock(&softc->ctl_lock); 4821 ctl_isc_announce_lun(lun); 4822 4823 return (0); 4824} 4825 4826int 4827ctl_start_lun(struct ctl_be_lun *be_lun) 4828{ 4829 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 4830 4831 mtx_lock(&lun->lun_lock); 4832 lun->flags &= ~CTL_LUN_STOPPED; 4833 mtx_unlock(&lun->lun_lock); 4834 return (0); 4835} 4836 4837int 4838ctl_stop_lun(struct ctl_be_lun *be_lun) 4839{ 4840 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 4841 4842 mtx_lock(&lun->lun_lock); 4843 lun->flags |= CTL_LUN_STOPPED; 4844 mtx_unlock(&lun->lun_lock); 4845 return (0); 4846} 4847 4848int 4849ctl_lun_no_media(struct ctl_be_lun *be_lun) 4850{ 4851 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 4852 4853 mtx_lock(&lun->lun_lock); 4854 lun->flags |= CTL_LUN_NO_MEDIA; 4855 mtx_unlock(&lun->lun_lock); 4856 return (0); 4857} 4858 4859int 4860ctl_lun_has_media(struct ctl_be_lun *be_lun) 4861{ 4862 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 4863 union ctl_ha_msg msg; 4864 4865 mtx_lock(&lun->lun_lock); 4866 lun->flags &= ~(CTL_LUN_NO_MEDIA | CTL_LUN_EJECTED); 4867 if (lun->flags & CTL_LUN_REMOVABLE) 4868 ctl_est_ua_all(lun, -1, CTL_UA_MEDIUM_CHANGE); 4869 mtx_unlock(&lun->lun_lock); 4870 if ((lun->flags & CTL_LUN_REMOVABLE) && 4871 lun->ctl_softc->ha_mode == CTL_HA_MODE_XFER) { 4872 bzero(&msg.ua, sizeof(msg.ua)); 4873 msg.hdr.msg_type = CTL_MSG_UA; 4874 msg.hdr.nexus.initid = -1; 4875 msg.hdr.nexus.targ_port = -1; 4876 msg.hdr.nexus.targ_lun = lun->lun; 4877 msg.hdr.nexus.targ_mapped_lun = lun->lun; 4878 msg.ua.ua_all = 1; 4879 msg.ua.ua_set = 1; 4880 msg.ua.ua_type = CTL_UA_MEDIUM_CHANGE; 4881 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, sizeof(msg.ua), 4882 M_WAITOK); 4883 } 4884 return (0); 4885} 4886 4887int 4888ctl_lun_ejected(struct ctl_be_lun *be_lun) 4889{ 4890 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 4891 4892 mtx_lock(&lun->lun_lock); 4893 lun->flags |= CTL_LUN_EJECTED; 4894 mtx_unlock(&lun->lun_lock); 4895 return (0); 4896} 4897 4898int 4899ctl_lun_primary(struct ctl_be_lun *be_lun) 4900{ 4901 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 4902 4903 mtx_lock(&lun->lun_lock); 4904 lun->flags |= CTL_LUN_PRIMARY_SC; 4905 ctl_est_ua_all(lun, -1, CTL_UA_ASYM_ACC_CHANGE); 4906 mtx_unlock(&lun->lun_lock); 4907 ctl_isc_announce_lun(lun); 4908 return (0); 4909} 4910 4911int 4912ctl_lun_secondary(struct ctl_be_lun *be_lun) 4913{ 4914 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 4915 4916 mtx_lock(&lun->lun_lock); 4917 lun->flags &= ~CTL_LUN_PRIMARY_SC; 4918 ctl_est_ua_all(lun, -1, CTL_UA_ASYM_ACC_CHANGE); 4919 mtx_unlock(&lun->lun_lock); 4920 ctl_isc_announce_lun(lun); 4921 return (0); 4922} 4923 4924int 4925ctl_invalidate_lun(struct ctl_be_lun *be_lun) 4926{ 4927 struct ctl_softc *softc; 4928 struct ctl_lun *lun; 4929 4930 lun = (struct ctl_lun *)be_lun->ctl_lun; 4931 softc = lun->ctl_softc; 4932 4933 mtx_lock(&lun->lun_lock); 4934 4935 /* 4936 * The LUN needs to be disabled before it can be marked invalid. 4937 */ 4938 if ((lun->flags & CTL_LUN_DISABLED) == 0) { 4939 mtx_unlock(&lun->lun_lock); 4940 return (-1); 4941 } 4942 /* 4943 * Mark the LUN invalid. 4944 */ 4945 lun->flags |= CTL_LUN_INVALID; 4946 4947 /* 4948 * If there is nothing in the OOA queue, go ahead and free the LUN. 4949 * If we have something in the OOA queue, we'll free it when the 4950 * last I/O completes. 4951 */ 4952 if (TAILQ_EMPTY(&lun->ooa_queue)) { 4953 mtx_unlock(&lun->lun_lock); 4954 mtx_lock(&softc->ctl_lock); 4955 ctl_free_lun(lun); 4956 mtx_unlock(&softc->ctl_lock); 4957 } else 4958 mtx_unlock(&lun->lun_lock); 4959 4960 return (0); 4961} 4962 4963void 4964ctl_lun_capacity_changed(struct ctl_be_lun *be_lun) 4965{ 4966 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 4967 union ctl_ha_msg msg; 4968 4969 mtx_lock(&lun->lun_lock); 4970 ctl_est_ua_all(lun, -1, CTL_UA_CAPACITY_CHANGE); 4971 mtx_unlock(&lun->lun_lock); 4972 if (lun->ctl_softc->ha_mode == CTL_HA_MODE_XFER) { 4973 /* Send msg to other side. */ 4974 bzero(&msg.ua, sizeof(msg.ua)); 4975 msg.hdr.msg_type = CTL_MSG_UA; 4976 msg.hdr.nexus.initid = -1; 4977 msg.hdr.nexus.targ_port = -1; 4978 msg.hdr.nexus.targ_lun = lun->lun; 4979 msg.hdr.nexus.targ_mapped_lun = lun->lun; 4980 msg.ua.ua_all = 1; 4981 msg.ua.ua_set = 1; 4982 msg.ua.ua_type = CTL_UA_CAPACITY_CHANGE; 4983 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, sizeof(msg.ua), 4984 M_WAITOK); 4985 } 4986} 4987 4988/* 4989 * Backend "memory move is complete" callback for requests that never 4990 * make it down to say RAIDCore's configuration code. 4991 */ 4992int 4993ctl_config_move_done(union ctl_io *io) 4994{ 4995 int retval; 4996 4997 CTL_DEBUG_PRINT(("ctl_config_move_done\n")); 4998 KASSERT(io->io_hdr.io_type == CTL_IO_SCSI, 4999 ("Config I/O type isn't CTL_IO_SCSI (%d)!", io->io_hdr.io_type)); 5000 5001 if ((io->io_hdr.port_status != 0) && 5002 ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE || 5003 (io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS)) { 5004 /* 5005 * For hardware error sense keys, the sense key 5006 * specific value is defined to be a retry count, 5007 * but we use it to pass back an internal FETD 5008 * error code. XXX KDM Hopefully the FETD is only 5009 * using 16 bits for an error code, since that's 5010 * all the space we have in the sks field. 5011 */ 5012 ctl_set_internal_failure(&io->scsiio, 5013 /*sks_valid*/ 1, 5014 /*retry_count*/ 5015 io->io_hdr.port_status); 5016 } 5017 5018 if (ctl_debug & CTL_DEBUG_CDB_DATA) 5019 ctl_data_print(io); 5020 if (((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_IN) || 5021 ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE && 5022 (io->io_hdr.status & CTL_STATUS_MASK) != CTL_SUCCESS) || 5023 ((io->io_hdr.flags & CTL_FLAG_ABORT) != 0)) { 5024 /* 5025 * XXX KDM just assuming a single pointer here, and not a 5026 * S/G list. If we start using S/G lists for config data, 5027 * we'll need to know how to clean them up here as well. 5028 */ 5029 if (io->io_hdr.flags & CTL_FLAG_ALLOCATED) 5030 free(io->scsiio.kern_data_ptr, M_CTL); 5031 ctl_done(io); 5032 retval = CTL_RETVAL_COMPLETE; 5033 } else { 5034 /* 5035 * XXX KDM now we need to continue data movement. Some 5036 * options: 5037 * - call ctl_scsiio() again? We don't do this for data 5038 * writes, because for those at least we know ahead of 5039 * time where the write will go and how long it is. For 5040 * config writes, though, that information is largely 5041 * contained within the write itself, thus we need to 5042 * parse out the data again. 5043 * 5044 * - Call some other function once the data is in? 5045 */ 5046 5047 /* 5048 * XXX KDM call ctl_scsiio() again for now, and check flag 5049 * bits to see whether we're allocated or not. 5050 */ 5051 retval = ctl_scsiio(&io->scsiio); 5052 } 5053 return (retval); 5054} 5055 5056/* 5057 * This gets called by a backend driver when it is done with a 5058 * data_submit method. 5059 */ 5060void 5061ctl_data_submit_done(union ctl_io *io) 5062{ 5063 /* 5064 * If the IO_CONT flag is set, we need to call the supplied 5065 * function to continue processing the I/O, instead of completing 5066 * the I/O just yet. 5067 * 5068 * If there is an error, though, we don't want to keep processing. 5069 * Instead, just send status back to the initiator. 5070 */ 5071 if ((io->io_hdr.flags & CTL_FLAG_IO_CONT) && 5072 (io->io_hdr.flags & CTL_FLAG_ABORT) == 0 && 5073 ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE || 5074 (io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS)) { 5075 io->scsiio.io_cont(io); 5076 return; 5077 } 5078 ctl_done(io); 5079} 5080 5081/* 5082 * This gets called by a backend driver when it is done with a 5083 * configuration write. 5084 */ 5085void 5086ctl_config_write_done(union ctl_io *io) 5087{ 5088 uint8_t *buf; 5089 5090 /* 5091 * If the IO_CONT flag is set, we need to call the supplied 5092 * function to continue processing the I/O, instead of completing 5093 * the I/O just yet. 5094 * 5095 * If there is an error, though, we don't want to keep processing. 5096 * Instead, just send status back to the initiator. 5097 */ 5098 if ((io->io_hdr.flags & CTL_FLAG_IO_CONT) && 5099 (io->io_hdr.flags & CTL_FLAG_ABORT) == 0 && 5100 ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE || 5101 (io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS)) { 5102 io->scsiio.io_cont(io); 5103 return; 5104 } 5105 /* 5106 * Since a configuration write can be done for commands that actually 5107 * have data allocated, like write buffer, and commands that have 5108 * no data, like start/stop unit, we need to check here. 5109 */ 5110 if (io->io_hdr.flags & CTL_FLAG_ALLOCATED) 5111 buf = io->scsiio.kern_data_ptr; 5112 else 5113 buf = NULL; 5114 ctl_done(io); 5115 if (buf) 5116 free(buf, M_CTL); 5117} 5118 5119void 5120ctl_config_read_done(union ctl_io *io) 5121{ 5122 uint8_t *buf; 5123 5124 /* 5125 * If there is some error -- we are done, skip data transfer. 5126 */ 5127 if ((io->io_hdr.flags & CTL_FLAG_ABORT) != 0 || 5128 ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE && 5129 (io->io_hdr.status & CTL_STATUS_MASK) != CTL_SUCCESS)) { 5130 if (io->io_hdr.flags & CTL_FLAG_ALLOCATED) 5131 buf = io->scsiio.kern_data_ptr; 5132 else 5133 buf = NULL; 5134 ctl_done(io); 5135 if (buf) 5136 free(buf, M_CTL); 5137 return; 5138 } 5139 5140 /* 5141 * If the IO_CONT flag is set, we need to call the supplied 5142 * function to continue processing the I/O, instead of completing 5143 * the I/O just yet. 5144 */ 5145 if (io->io_hdr.flags & CTL_FLAG_IO_CONT) { 5146 io->scsiio.io_cont(io); 5147 return; 5148 } 5149 5150 ctl_datamove(io); 5151} 5152 5153/* 5154 * SCSI release command. 5155 */ 5156int 5157ctl_scsi_release(struct ctl_scsiio *ctsio) 5158{ 5159 struct ctl_lun *lun; 5160 uint32_t residx; 5161 5162 CTL_DEBUG_PRINT(("ctl_scsi_release\n")); 5163 5164 residx = ctl_get_initindex(&ctsio->io_hdr.nexus); 5165 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5166 5167 /* 5168 * XXX KDM right now, we only support LUN reservation. We don't 5169 * support 3rd party reservations, or extent reservations, which 5170 * might actually need the parameter list. If we've gotten this 5171 * far, we've got a LUN reservation. Anything else got kicked out 5172 * above. So, according to SPC, ignore the length. 5173 */ 5174 5175 mtx_lock(&lun->lun_lock); 5176 5177 /* 5178 * According to SPC, it is not an error for an intiator to attempt 5179 * to release a reservation on a LUN that isn't reserved, or that 5180 * is reserved by another initiator. The reservation can only be 5181 * released, though, by the initiator who made it or by one of 5182 * several reset type events. 5183 */ 5184 if ((lun->flags & CTL_LUN_RESERVED) && (lun->res_idx == residx)) 5185 lun->flags &= ~CTL_LUN_RESERVED; 5186 5187 mtx_unlock(&lun->lun_lock); 5188 5189 ctl_set_success(ctsio); 5190 ctl_done((union ctl_io *)ctsio); 5191 return (CTL_RETVAL_COMPLETE); 5192} 5193 5194int 5195ctl_scsi_reserve(struct ctl_scsiio *ctsio) 5196{ 5197 struct ctl_lun *lun; 5198 uint32_t residx; 5199 5200 CTL_DEBUG_PRINT(("ctl_reserve\n")); 5201 5202 residx = ctl_get_initindex(&ctsio->io_hdr.nexus); 5203 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5204 5205 /* 5206 * XXX KDM right now, we only support LUN reservation. We don't 5207 * support 3rd party reservations, or extent reservations, which 5208 * might actually need the parameter list. If we've gotten this 5209 * far, we've got a LUN reservation. Anything else got kicked out 5210 * above. So, according to SPC, ignore the length. 5211 */ 5212 5213 mtx_lock(&lun->lun_lock); 5214 if ((lun->flags & CTL_LUN_RESERVED) && (lun->res_idx != residx)) { 5215 ctl_set_reservation_conflict(ctsio); 5216 goto bailout; 5217 } 5218 5219 /* SPC-3 exceptions to SPC-2 RESERVE and RELEASE behavior. */ 5220 if (lun->flags & CTL_LUN_PR_RESERVED) { 5221 ctl_set_success(ctsio); 5222 goto bailout; 5223 } 5224 5225 lun->flags |= CTL_LUN_RESERVED; 5226 lun->res_idx = residx; 5227 ctl_set_success(ctsio); 5228 5229bailout: 5230 mtx_unlock(&lun->lun_lock); 5231 ctl_done((union ctl_io *)ctsio); 5232 return (CTL_RETVAL_COMPLETE); 5233} 5234 5235int 5236ctl_start_stop(struct ctl_scsiio *ctsio) 5237{ 5238 struct scsi_start_stop_unit *cdb; 5239 struct ctl_lun *lun; 5240 int retval; 5241 5242 CTL_DEBUG_PRINT(("ctl_start_stop\n")); 5243 5244 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5245 cdb = (struct scsi_start_stop_unit *)ctsio->cdb; 5246 5247 if ((cdb->how & SSS_PC_MASK) == 0) { 5248 if ((lun->flags & CTL_LUN_PR_RESERVED) && 5249 (cdb->how & SSS_START) == 0) { 5250 uint32_t residx; 5251 5252 residx = ctl_get_initindex(&ctsio->io_hdr.nexus); 5253 if (ctl_get_prkey(lun, residx) == 0 || 5254 (lun->pr_res_idx != residx && lun->pr_res_type < 4)) { 5255 5256 ctl_set_reservation_conflict(ctsio); 5257 ctl_done((union ctl_io *)ctsio); 5258 return (CTL_RETVAL_COMPLETE); 5259 } 5260 } 5261 5262 if ((cdb->how & SSS_LOEJ) && 5263 (lun->flags & CTL_LUN_REMOVABLE) == 0) { 5264 ctl_set_invalid_field(ctsio, 5265 /*sks_valid*/ 1, 5266 /*command*/ 1, 5267 /*field*/ 4, 5268 /*bit_valid*/ 1, 5269 /*bit*/ 1); 5270 ctl_done((union ctl_io *)ctsio); 5271 return (CTL_RETVAL_COMPLETE); 5272 } 5273 5274 if ((cdb->how & SSS_START) == 0 && (cdb->how & SSS_LOEJ) && 5275 lun->prevent_count > 0) { 5276 /* "Medium removal prevented" */ 5277 ctl_set_sense(ctsio, /*current_error*/ 1, 5278 /*sense_key*/(lun->flags & CTL_LUN_NO_MEDIA) ? 5279 SSD_KEY_NOT_READY : SSD_KEY_ILLEGAL_REQUEST, 5280 /*asc*/ 0x53, /*ascq*/ 0x02, SSD_ELEM_NONE); 5281 ctl_done((union ctl_io *)ctsio); 5282 return (CTL_RETVAL_COMPLETE); 5283 } 5284 } 5285 5286 retval = lun->backend->config_write((union ctl_io *)ctsio); 5287 return (retval); 5288} 5289 5290int 5291ctl_prevent_allow(struct ctl_scsiio *ctsio) 5292{ 5293 struct ctl_lun *lun; 5294 struct scsi_prevent *cdb; 5295 int retval; 5296 uint32_t initidx; 5297 5298 CTL_DEBUG_PRINT(("ctl_prevent_allow\n")); 5299 5300 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5301 cdb = (struct scsi_prevent *)ctsio->cdb; 5302 5303 if ((lun->flags & CTL_LUN_REMOVABLE) == 0) { 5304 ctl_set_invalid_opcode(ctsio); 5305 ctl_done((union ctl_io *)ctsio); 5306 return (CTL_RETVAL_COMPLETE); 5307 } 5308 5309 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 5310 mtx_lock(&lun->lun_lock); 5311 if ((cdb->how & PR_PREVENT) && 5312 ctl_is_set(lun->prevent, initidx) == 0) { 5313 ctl_set_mask(lun->prevent, initidx); 5314 lun->prevent_count++; 5315 } else if ((cdb->how & PR_PREVENT) == 0 && 5316 ctl_is_set(lun->prevent, initidx)) { 5317 ctl_clear_mask(lun->prevent, initidx); 5318 lun->prevent_count--; 5319 } 5320 mtx_unlock(&lun->lun_lock); 5321 retval = lun->backend->config_write((union ctl_io *)ctsio); 5322 return (retval); 5323} 5324 5325/* 5326 * We support the SYNCHRONIZE CACHE command (10 and 16 byte versions), but 5327 * we don't really do anything with the LBA and length fields if the user 5328 * passes them in. Instead we'll just flush out the cache for the entire 5329 * LUN. 5330 */ 5331int 5332ctl_sync_cache(struct ctl_scsiio *ctsio) 5333{ 5334 struct ctl_lun *lun; 5335 struct ctl_softc *softc; 5336 struct ctl_lba_len_flags *lbalen; 5337 uint64_t starting_lba; 5338 uint32_t block_count; 5339 int retval; 5340 uint8_t byte2; 5341 5342 CTL_DEBUG_PRINT(("ctl_sync_cache\n")); 5343 5344 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5345 softc = lun->ctl_softc; 5346 retval = 0; 5347 5348 switch (ctsio->cdb[0]) { 5349 case SYNCHRONIZE_CACHE: { 5350 struct scsi_sync_cache *cdb; 5351 cdb = (struct scsi_sync_cache *)ctsio->cdb; 5352 5353 starting_lba = scsi_4btoul(cdb->begin_lba); 5354 block_count = scsi_2btoul(cdb->lb_count); 5355 byte2 = cdb->byte2; 5356 break; 5357 } 5358 case SYNCHRONIZE_CACHE_16: { 5359 struct scsi_sync_cache_16 *cdb; 5360 cdb = (struct scsi_sync_cache_16 *)ctsio->cdb; 5361 5362 starting_lba = scsi_8btou64(cdb->begin_lba); 5363 block_count = scsi_4btoul(cdb->lb_count); 5364 byte2 = cdb->byte2; 5365 break; 5366 } 5367 default: 5368 ctl_set_invalid_opcode(ctsio); 5369 ctl_done((union ctl_io *)ctsio); 5370 goto bailout; 5371 break; /* NOTREACHED */ 5372 } 5373 5374 /* 5375 * We check the LBA and length, but don't do anything with them. 5376 * A SYNCHRONIZE CACHE will cause the entire cache for this lun to 5377 * get flushed. This check will just help satisfy anyone who wants 5378 * to see an error for an out of range LBA. 5379 */ 5380 if ((starting_lba + block_count) > (lun->be_lun->maxlba + 1)) { 5381 ctl_set_lba_out_of_range(ctsio, 5382 MAX(starting_lba, lun->be_lun->maxlba + 1)); 5383 ctl_done((union ctl_io *)ctsio); 5384 goto bailout; 5385 } 5386 5387 lbalen = (struct ctl_lba_len_flags *)&ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 5388 lbalen->lba = starting_lba; 5389 lbalen->len = block_count; 5390 lbalen->flags = byte2; 5391 retval = lun->backend->config_write((union ctl_io *)ctsio); 5392 5393bailout: 5394 return (retval); 5395} 5396 5397int 5398ctl_format(struct ctl_scsiio *ctsio) 5399{ 5400 struct scsi_format *cdb; 5401 struct ctl_lun *lun; 5402 int length, defect_list_len; 5403 5404 CTL_DEBUG_PRINT(("ctl_format\n")); 5405 5406 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5407 5408 cdb = (struct scsi_format *)ctsio->cdb; 5409 5410 length = 0; 5411 if (cdb->byte2 & SF_FMTDATA) { 5412 if (cdb->byte2 & SF_LONGLIST) 5413 length = sizeof(struct scsi_format_header_long); 5414 else 5415 length = sizeof(struct scsi_format_header_short); 5416 } 5417 5418 if (((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) 5419 && (length > 0)) { 5420 ctsio->kern_data_ptr = malloc(length, M_CTL, M_WAITOK); 5421 ctsio->kern_data_len = length; 5422 ctsio->kern_total_len = length; 5423 ctsio->kern_data_resid = 0; 5424 ctsio->kern_rel_offset = 0; 5425 ctsio->kern_sg_entries = 0; 5426 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5427 ctsio->be_move_done = ctl_config_move_done; 5428 ctl_datamove((union ctl_io *)ctsio); 5429 5430 return (CTL_RETVAL_COMPLETE); 5431 } 5432 5433 defect_list_len = 0; 5434 5435 if (cdb->byte2 & SF_FMTDATA) { 5436 if (cdb->byte2 & SF_LONGLIST) { 5437 struct scsi_format_header_long *header; 5438 5439 header = (struct scsi_format_header_long *) 5440 ctsio->kern_data_ptr; 5441 5442 defect_list_len = scsi_4btoul(header->defect_list_len); 5443 if (defect_list_len != 0) { 5444 ctl_set_invalid_field(ctsio, 5445 /*sks_valid*/ 1, 5446 /*command*/ 0, 5447 /*field*/ 2, 5448 /*bit_valid*/ 0, 5449 /*bit*/ 0); 5450 goto bailout; 5451 } 5452 } else { 5453 struct scsi_format_header_short *header; 5454 5455 header = (struct scsi_format_header_short *) 5456 ctsio->kern_data_ptr; 5457 5458 defect_list_len = scsi_2btoul(header->defect_list_len); 5459 if (defect_list_len != 0) { 5460 ctl_set_invalid_field(ctsio, 5461 /*sks_valid*/ 1, 5462 /*command*/ 0, 5463 /*field*/ 2, 5464 /*bit_valid*/ 0, 5465 /*bit*/ 0); 5466 goto bailout; 5467 } 5468 } 5469 } 5470 5471 ctl_set_success(ctsio); 5472bailout: 5473 5474 if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) { 5475 free(ctsio->kern_data_ptr, M_CTL); 5476 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED; 5477 } 5478 5479 ctl_done((union ctl_io *)ctsio); 5480 return (CTL_RETVAL_COMPLETE); 5481} 5482 5483int 5484ctl_read_buffer(struct ctl_scsiio *ctsio) 5485{ 5486 struct ctl_lun *lun; 5487 uint64_t buffer_offset; 5488 uint32_t len; 5489 uint8_t byte2; 5490 static uint8_t descr[4]; 5491 static uint8_t echo_descr[4] = { 0 }; 5492 5493 CTL_DEBUG_PRINT(("ctl_read_buffer\n")); 5494 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5495 switch (ctsio->cdb[0]) { 5496 case READ_BUFFER: { 5497 struct scsi_read_buffer *cdb; 5498 5499 cdb = (struct scsi_read_buffer *)ctsio->cdb; 5500 buffer_offset = scsi_3btoul(cdb->offset); 5501 len = scsi_3btoul(cdb->length); 5502 byte2 = cdb->byte2; 5503 break; 5504 } 5505 case READ_BUFFER_16: { 5506 struct scsi_read_buffer_16 *cdb; 5507 5508 cdb = (struct scsi_read_buffer_16 *)ctsio->cdb; 5509 buffer_offset = scsi_8btou64(cdb->offset); 5510 len = scsi_4btoul(cdb->length); 5511 byte2 = cdb->byte2; 5512 break; 5513 } 5514 default: /* This shouldn't happen. */ 5515 ctl_set_invalid_opcode(ctsio); 5516 ctl_done((union ctl_io *)ctsio); 5517 return (CTL_RETVAL_COMPLETE); 5518 } 5519 5520 if ((byte2 & RWB_MODE) != RWB_MODE_DATA && 5521 (byte2 & RWB_MODE) != RWB_MODE_ECHO_DESCR && 5522 (byte2 & RWB_MODE) != RWB_MODE_DESCR) { 5523 ctl_set_invalid_field(ctsio, 5524 /*sks_valid*/ 1, 5525 /*command*/ 1, 5526 /*field*/ 1, 5527 /*bit_valid*/ 1, 5528 /*bit*/ 4); 5529 ctl_done((union ctl_io *)ctsio); 5530 return (CTL_RETVAL_COMPLETE); 5531 } 5532 5533 if (buffer_offset > CTL_WRITE_BUFFER_SIZE || 5534 buffer_offset + len > CTL_WRITE_BUFFER_SIZE) { 5535 ctl_set_invalid_field(ctsio, 5536 /*sks_valid*/ 1, 5537 /*command*/ 1, 5538 /*field*/ 6, 5539 /*bit_valid*/ 0, 5540 /*bit*/ 0); 5541 ctl_done((union ctl_io *)ctsio); 5542 return (CTL_RETVAL_COMPLETE); 5543 } 5544 5545 if ((byte2 & RWB_MODE) == RWB_MODE_DESCR) { 5546 descr[0] = 0; 5547 scsi_ulto3b(CTL_WRITE_BUFFER_SIZE, &descr[1]); 5548 ctsio->kern_data_ptr = descr; 5549 len = min(len, sizeof(descr)); 5550 } else if ((byte2 & RWB_MODE) == RWB_MODE_ECHO_DESCR) { 5551 ctsio->kern_data_ptr = echo_descr; 5552 len = min(len, sizeof(echo_descr)); 5553 } else { 5554 if (lun->write_buffer == NULL) { 5555 lun->write_buffer = malloc(CTL_WRITE_BUFFER_SIZE, 5556 M_CTL, M_WAITOK); 5557 } 5558 ctsio->kern_data_ptr = lun->write_buffer + buffer_offset; 5559 } 5560 ctsio->kern_data_len = len; 5561 ctsio->kern_total_len = len; 5562 ctsio->kern_data_resid = 0; 5563 ctsio->kern_rel_offset = 0; 5564 ctsio->kern_sg_entries = 0; 5565 ctl_set_success(ctsio); 5566 ctsio->be_move_done = ctl_config_move_done; 5567 ctl_datamove((union ctl_io *)ctsio); 5568 return (CTL_RETVAL_COMPLETE); 5569} 5570 5571int 5572ctl_write_buffer(struct ctl_scsiio *ctsio) 5573{ 5574 struct scsi_write_buffer *cdb; 5575 struct ctl_lun *lun; 5576 int buffer_offset, len; 5577 5578 CTL_DEBUG_PRINT(("ctl_write_buffer\n")); 5579 5580 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5581 cdb = (struct scsi_write_buffer *)ctsio->cdb; 5582 5583 if ((cdb->byte2 & RWB_MODE) != RWB_MODE_DATA) { 5584 ctl_set_invalid_field(ctsio, 5585 /*sks_valid*/ 1, 5586 /*command*/ 1, 5587 /*field*/ 1, 5588 /*bit_valid*/ 1, 5589 /*bit*/ 4); 5590 ctl_done((union ctl_io *)ctsio); 5591 return (CTL_RETVAL_COMPLETE); 5592 } 5593 5594 len = scsi_3btoul(cdb->length); 5595 buffer_offset = scsi_3btoul(cdb->offset); 5596 5597 if (buffer_offset + len > CTL_WRITE_BUFFER_SIZE) { 5598 ctl_set_invalid_field(ctsio, 5599 /*sks_valid*/ 1, 5600 /*command*/ 1, 5601 /*field*/ 6, 5602 /*bit_valid*/ 0, 5603 /*bit*/ 0); 5604 ctl_done((union ctl_io *)ctsio); 5605 return (CTL_RETVAL_COMPLETE); 5606 } 5607 5608 /* 5609 * If we've got a kernel request that hasn't been malloced yet, 5610 * malloc it and tell the caller the data buffer is here. 5611 */ 5612 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 5613 if (lun->write_buffer == NULL) { 5614 lun->write_buffer = malloc(CTL_WRITE_BUFFER_SIZE, 5615 M_CTL, M_WAITOK); 5616 } 5617 ctsio->kern_data_ptr = lun->write_buffer + buffer_offset; 5618 ctsio->kern_data_len = len; 5619 ctsio->kern_total_len = len; 5620 ctsio->kern_data_resid = 0; 5621 ctsio->kern_rel_offset = 0; 5622 ctsio->kern_sg_entries = 0; 5623 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5624 ctsio->be_move_done = ctl_config_move_done; 5625 ctl_datamove((union ctl_io *)ctsio); 5626 5627 return (CTL_RETVAL_COMPLETE); 5628 } 5629 5630 ctl_set_success(ctsio); 5631 ctl_done((union ctl_io *)ctsio); 5632 return (CTL_RETVAL_COMPLETE); 5633} 5634 5635int 5636ctl_write_same(struct ctl_scsiio *ctsio) 5637{ 5638 struct ctl_lun *lun; 5639 struct ctl_lba_len_flags *lbalen; 5640 uint64_t lba; 5641 uint32_t num_blocks; 5642 int len, retval; 5643 uint8_t byte2; 5644 5645 CTL_DEBUG_PRINT(("ctl_write_same\n")); 5646 5647 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5648 5649 switch (ctsio->cdb[0]) { 5650 case WRITE_SAME_10: { 5651 struct scsi_write_same_10 *cdb; 5652 5653 cdb = (struct scsi_write_same_10 *)ctsio->cdb; 5654 5655 lba = scsi_4btoul(cdb->addr); 5656 num_blocks = scsi_2btoul(cdb->length); 5657 byte2 = cdb->byte2; 5658 break; 5659 } 5660 case WRITE_SAME_16: { 5661 struct scsi_write_same_16 *cdb; 5662 5663 cdb = (struct scsi_write_same_16 *)ctsio->cdb; 5664 5665 lba = scsi_8btou64(cdb->addr); 5666 num_blocks = scsi_4btoul(cdb->length); 5667 byte2 = cdb->byte2; 5668 break; 5669 } 5670 default: 5671 /* 5672 * We got a command we don't support. This shouldn't 5673 * happen, commands should be filtered out above us. 5674 */ 5675 ctl_set_invalid_opcode(ctsio); 5676 ctl_done((union ctl_io *)ctsio); 5677 5678 return (CTL_RETVAL_COMPLETE); 5679 break; /* NOTREACHED */ 5680 } 5681 5682 /* ANCHOR flag can be used only together with UNMAP */ 5683 if ((byte2 & SWS_UNMAP) == 0 && (byte2 & SWS_ANCHOR) != 0) { 5684 ctl_set_invalid_field(ctsio, /*sks_valid*/ 1, 5685 /*command*/ 1, /*field*/ 1, /*bit_valid*/ 1, /*bit*/ 0); 5686 ctl_done((union ctl_io *)ctsio); 5687 return (CTL_RETVAL_COMPLETE); 5688 } 5689 5690 /* 5691 * The first check is to make sure we're in bounds, the second 5692 * check is to catch wrap-around problems. If the lba + num blocks 5693 * is less than the lba, then we've wrapped around and the block 5694 * range is invalid anyway. 5695 */ 5696 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 5697 || ((lba + num_blocks) < lba)) { 5698 ctl_set_lba_out_of_range(ctsio, 5699 MAX(lba, lun->be_lun->maxlba + 1)); 5700 ctl_done((union ctl_io *)ctsio); 5701 return (CTL_RETVAL_COMPLETE); 5702 } 5703 5704 /* Zero number of blocks means "to the last logical block" */ 5705 if (num_blocks == 0) { 5706 if ((lun->be_lun->maxlba + 1) - lba > UINT32_MAX) { 5707 ctl_set_invalid_field(ctsio, 5708 /*sks_valid*/ 0, 5709 /*command*/ 1, 5710 /*field*/ 0, 5711 /*bit_valid*/ 0, 5712 /*bit*/ 0); 5713 ctl_done((union ctl_io *)ctsio); 5714 return (CTL_RETVAL_COMPLETE); 5715 } 5716 num_blocks = (lun->be_lun->maxlba + 1) - lba; 5717 } 5718 5719 len = lun->be_lun->blocksize; 5720 5721 /* 5722 * If we've got a kernel request that hasn't been malloced yet, 5723 * malloc it and tell the caller the data buffer is here. 5724 */ 5725 if ((byte2 & SWS_NDOB) == 0 && 5726 (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 5727 ctsio->kern_data_ptr = malloc(len, M_CTL, M_WAITOK); 5728 ctsio->kern_data_len = len; 5729 ctsio->kern_total_len = len; 5730 ctsio->kern_data_resid = 0; 5731 ctsio->kern_rel_offset = 0; 5732 ctsio->kern_sg_entries = 0; 5733 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5734 ctsio->be_move_done = ctl_config_move_done; 5735 ctl_datamove((union ctl_io *)ctsio); 5736 5737 return (CTL_RETVAL_COMPLETE); 5738 } 5739 5740 lbalen = (struct ctl_lba_len_flags *)&ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 5741 lbalen->lba = lba; 5742 lbalen->len = num_blocks; 5743 lbalen->flags = byte2; 5744 retval = lun->backend->config_write((union ctl_io *)ctsio); 5745 5746 return (retval); 5747} 5748 5749int 5750ctl_unmap(struct ctl_scsiio *ctsio) 5751{ 5752 struct ctl_lun *lun; 5753 struct scsi_unmap *cdb; 5754 struct ctl_ptr_len_flags *ptrlen; 5755 struct scsi_unmap_header *hdr; 5756 struct scsi_unmap_desc *buf, *end, *endnz, *range; 5757 uint64_t lba; 5758 uint32_t num_blocks; 5759 int len, retval; 5760 uint8_t byte2; 5761 5762 CTL_DEBUG_PRINT(("ctl_unmap\n")); 5763 5764 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5765 cdb = (struct scsi_unmap *)ctsio->cdb; 5766 5767 len = scsi_2btoul(cdb->length); 5768 byte2 = cdb->byte2; 5769 5770 /* 5771 * If we've got a kernel request that hasn't been malloced yet, 5772 * malloc it and tell the caller the data buffer is here. 5773 */ 5774 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 5775 ctsio->kern_data_ptr = malloc(len, M_CTL, M_WAITOK); 5776 ctsio->kern_data_len = len; 5777 ctsio->kern_total_len = len; 5778 ctsio->kern_data_resid = 0; 5779 ctsio->kern_rel_offset = 0; 5780 ctsio->kern_sg_entries = 0; 5781 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5782 ctsio->be_move_done = ctl_config_move_done; 5783 ctl_datamove((union ctl_io *)ctsio); 5784 5785 return (CTL_RETVAL_COMPLETE); 5786 } 5787 5788 len = ctsio->kern_total_len - ctsio->kern_data_resid; 5789 hdr = (struct scsi_unmap_header *)ctsio->kern_data_ptr; 5790 if (len < sizeof (*hdr) || 5791 len < (scsi_2btoul(hdr->length) + sizeof(hdr->length)) || 5792 len < (scsi_2btoul(hdr->desc_length) + sizeof (*hdr)) || 5793 scsi_2btoul(hdr->desc_length) % sizeof(*buf) != 0) { 5794 ctl_set_invalid_field(ctsio, 5795 /*sks_valid*/ 0, 5796 /*command*/ 0, 5797 /*field*/ 0, 5798 /*bit_valid*/ 0, 5799 /*bit*/ 0); 5800 goto done; 5801 } 5802 len = scsi_2btoul(hdr->desc_length); 5803 buf = (struct scsi_unmap_desc *)(hdr + 1); 5804 end = buf + len / sizeof(*buf); 5805 5806 endnz = buf; 5807 for (range = buf; range < end; range++) { 5808 lba = scsi_8btou64(range->lba); 5809 num_blocks = scsi_4btoul(range->length); 5810 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 5811 || ((lba + num_blocks) < lba)) { 5812 ctl_set_lba_out_of_range(ctsio, 5813 MAX(lba, lun->be_lun->maxlba + 1)); 5814 ctl_done((union ctl_io *)ctsio); 5815 return (CTL_RETVAL_COMPLETE); 5816 } 5817 if (num_blocks != 0) 5818 endnz = range + 1; 5819 } 5820 5821 /* 5822 * Block backend can not handle zero last range. 5823 * Filter it out and return if there is nothing left. 5824 */ 5825 len = (uint8_t *)endnz - (uint8_t *)buf; 5826 if (len == 0) { 5827 ctl_set_success(ctsio); 5828 goto done; 5829 } 5830 5831 mtx_lock(&lun->lun_lock); 5832 ptrlen = (struct ctl_ptr_len_flags *) 5833 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 5834 ptrlen->ptr = (void *)buf; 5835 ptrlen->len = len; 5836 ptrlen->flags = byte2; 5837 ctl_check_blocked(lun); 5838 mtx_unlock(&lun->lun_lock); 5839 5840 retval = lun->backend->config_write((union ctl_io *)ctsio); 5841 return (retval); 5842 5843done: 5844 if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) { 5845 free(ctsio->kern_data_ptr, M_CTL); 5846 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED; 5847 } 5848 ctl_done((union ctl_io *)ctsio); 5849 return (CTL_RETVAL_COMPLETE); 5850} 5851 5852int 5853ctl_default_page_handler(struct ctl_scsiio *ctsio, 5854 struct ctl_page_index *page_index, uint8_t *page_ptr) 5855{ 5856 struct ctl_lun *lun; 5857 uint8_t *current_cp, *saved_cp; 5858 int set_ua; 5859 uint32_t initidx; 5860 5861 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5862 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 5863 set_ua = 0; 5864 5865 current_cp = (page_index->page_data + (page_index->page_len * 5866 CTL_PAGE_CURRENT)); 5867 saved_cp = (page_index->page_data + (page_index->page_len * 5868 CTL_PAGE_SAVED)); 5869 5870 mtx_lock(&lun->lun_lock); 5871 if (memcmp(current_cp, page_ptr, page_index->page_len)) { 5872 memcpy(current_cp, page_ptr, page_index->page_len); 5873 memcpy(saved_cp, page_ptr, page_index->page_len); 5874 set_ua = 1; 5875 } 5876 if (set_ua != 0) 5877 ctl_est_ua_all(lun, initidx, CTL_UA_MODE_CHANGE); 5878 mtx_unlock(&lun->lun_lock); 5879 if (set_ua) { 5880 ctl_isc_announce_mode(lun, 5881 ctl_get_initindex(&ctsio->io_hdr.nexus), 5882 page_index->page_code, page_index->subpage); 5883 } 5884 return (CTL_RETVAL_COMPLETE); 5885} 5886 5887static void 5888ctl_ie_timer(void *arg) 5889{ 5890 struct ctl_lun *lun = arg; 5891 uint64_t t; 5892 5893 if (lun->ie_asc == 0) 5894 return; 5895 5896 if (lun->MODE_IE.mrie == SIEP_MRIE_UA) 5897 ctl_est_ua_all(lun, -1, CTL_UA_IE); 5898 else 5899 lun->ie_reported = 0; 5900 5901 if (lun->ie_reportcnt < scsi_4btoul(lun->MODE_IE.report_count)) { 5902 lun->ie_reportcnt++; 5903 t = scsi_4btoul(lun->MODE_IE.interval_timer); 5904 if (t == 0 || t == UINT32_MAX) 5905 t = 3000; /* 5 min */ 5906 callout_schedule(&lun->ie_callout, t * hz / 10); 5907 } 5908} 5909 5910int 5911ctl_ie_page_handler(struct ctl_scsiio *ctsio, 5912 struct ctl_page_index *page_index, uint8_t *page_ptr) 5913{ 5914 struct scsi_info_exceptions_page *pg; 5915 struct ctl_lun *lun; 5916 uint64_t t; 5917 5918 (void)ctl_default_page_handler(ctsio, page_index, page_ptr); 5919 5920 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5921 pg = (struct scsi_info_exceptions_page *)page_ptr; 5922 mtx_lock(&lun->lun_lock); 5923 if (pg->info_flags & SIEP_FLAGS_TEST) { 5924 lun->ie_asc = 0x5d; 5925 lun->ie_ascq = 0xff; 5926 if (pg->mrie == SIEP_MRIE_UA) { 5927 ctl_est_ua_all(lun, -1, CTL_UA_IE); 5928 lun->ie_reported = 1; 5929 } else { 5930 ctl_clr_ua_all(lun, -1, CTL_UA_IE); 5931 lun->ie_reported = -1; 5932 } 5933 lun->ie_reportcnt = 1; 5934 if (lun->ie_reportcnt < scsi_4btoul(pg->report_count)) { 5935 lun->ie_reportcnt++; 5936 t = scsi_4btoul(pg->interval_timer); 5937 if (t == 0 || t == UINT32_MAX) 5938 t = 3000; /* 5 min */ 5939 callout_reset(&lun->ie_callout, t * hz / 10, 5940 ctl_ie_timer, lun); 5941 } 5942 } else { 5943 lun->ie_asc = 0; 5944 lun->ie_ascq = 0; 5945 lun->ie_reported = 1; 5946 ctl_clr_ua_all(lun, -1, CTL_UA_IE); 5947 lun->ie_reportcnt = UINT32_MAX; 5948 callout_stop(&lun->ie_callout); 5949 } 5950 mtx_unlock(&lun->lun_lock); 5951 return (CTL_RETVAL_COMPLETE); 5952} 5953 5954static int 5955ctl_do_mode_select(union ctl_io *io) 5956{ 5957 struct scsi_mode_page_header *page_header; 5958 struct ctl_page_index *page_index; 5959 struct ctl_scsiio *ctsio; 5960 int page_len, page_len_offset, page_len_size; 5961 union ctl_modepage_info *modepage_info; 5962 struct ctl_lun *lun; 5963 int *len_left, *len_used; 5964 int retval, i; 5965 5966 ctsio = &io->scsiio; 5967 page_index = NULL; 5968 page_len = 0; 5969 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5970 5971 modepage_info = (union ctl_modepage_info *) 5972 ctsio->io_hdr.ctl_private[CTL_PRIV_MODEPAGE].bytes; 5973 len_left = &modepage_info->header.len_left; 5974 len_used = &modepage_info->header.len_used; 5975 5976do_next_page: 5977 5978 page_header = (struct scsi_mode_page_header *) 5979 (ctsio->kern_data_ptr + *len_used); 5980 5981 if (*len_left == 0) { 5982 free(ctsio->kern_data_ptr, M_CTL); 5983 ctl_set_success(ctsio); 5984 ctl_done((union ctl_io *)ctsio); 5985 return (CTL_RETVAL_COMPLETE); 5986 } else if (*len_left < sizeof(struct scsi_mode_page_header)) { 5987 5988 free(ctsio->kern_data_ptr, M_CTL); 5989 ctl_set_param_len_error(ctsio); 5990 ctl_done((union ctl_io *)ctsio); 5991 return (CTL_RETVAL_COMPLETE); 5992 5993 } else if ((page_header->page_code & SMPH_SPF) 5994 && (*len_left < sizeof(struct scsi_mode_page_header_sp))) { 5995 5996 free(ctsio->kern_data_ptr, M_CTL); 5997 ctl_set_param_len_error(ctsio); 5998 ctl_done((union ctl_io *)ctsio); 5999 return (CTL_RETVAL_COMPLETE); 6000 } 6001 6002 6003 /* 6004 * XXX KDM should we do something with the block descriptor? 6005 */ 6006 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6007 page_index = &lun->mode_pages.index[i]; 6008 if (lun->be_lun->lun_type == T_DIRECT && 6009 (page_index->page_flags & CTL_PAGE_FLAG_DIRECT) == 0) 6010 continue; 6011 if (lun->be_lun->lun_type == T_PROCESSOR && 6012 (page_index->page_flags & CTL_PAGE_FLAG_PROC) == 0) 6013 continue; 6014 if (lun->be_lun->lun_type == T_CDROM && 6015 (page_index->page_flags & CTL_PAGE_FLAG_CDROM) == 0) 6016 continue; 6017 6018 if ((page_index->page_code & SMPH_PC_MASK) != 6019 (page_header->page_code & SMPH_PC_MASK)) 6020 continue; 6021 6022 /* 6023 * If neither page has a subpage code, then we've got a 6024 * match. 6025 */ 6026 if (((page_index->page_code & SMPH_SPF) == 0) 6027 && ((page_header->page_code & SMPH_SPF) == 0)) { 6028 page_len = page_header->page_length; 6029 break; 6030 } 6031 6032 /* 6033 * If both pages have subpages, then the subpage numbers 6034 * have to match. 6035 */ 6036 if ((page_index->page_code & SMPH_SPF) 6037 && (page_header->page_code & SMPH_SPF)) { 6038 struct scsi_mode_page_header_sp *sph; 6039 6040 sph = (struct scsi_mode_page_header_sp *)page_header; 6041 if (page_index->subpage == sph->subpage) { 6042 page_len = scsi_2btoul(sph->page_length); 6043 break; 6044 } 6045 } 6046 } 6047 6048 /* 6049 * If we couldn't find the page, or if we don't have a mode select 6050 * handler for it, send back an error to the user. 6051 */ 6052 if ((i >= CTL_NUM_MODE_PAGES) 6053 || (page_index->select_handler == NULL)) { 6054 ctl_set_invalid_field(ctsio, 6055 /*sks_valid*/ 1, 6056 /*command*/ 0, 6057 /*field*/ *len_used, 6058 /*bit_valid*/ 0, 6059 /*bit*/ 0); 6060 free(ctsio->kern_data_ptr, M_CTL); 6061 ctl_done((union ctl_io *)ctsio); 6062 return (CTL_RETVAL_COMPLETE); 6063 } 6064 6065 if (page_index->page_code & SMPH_SPF) { 6066 page_len_offset = 2; 6067 page_len_size = 2; 6068 } else { 6069 page_len_size = 1; 6070 page_len_offset = 1; 6071 } 6072 6073 /* 6074 * If the length the initiator gives us isn't the one we specify in 6075 * the mode page header, or if they didn't specify enough data in 6076 * the CDB to avoid truncating this page, kick out the request. 6077 */ 6078 if (page_len != page_index->page_len - page_len_offset - page_len_size) { 6079 ctl_set_invalid_field(ctsio, 6080 /*sks_valid*/ 1, 6081 /*command*/ 0, 6082 /*field*/ *len_used + page_len_offset, 6083 /*bit_valid*/ 0, 6084 /*bit*/ 0); 6085 free(ctsio->kern_data_ptr, M_CTL); 6086 ctl_done((union ctl_io *)ctsio); 6087 return (CTL_RETVAL_COMPLETE); 6088 } 6089 if (*len_left < page_index->page_len) { 6090 free(ctsio->kern_data_ptr, M_CTL); 6091 ctl_set_param_len_error(ctsio); 6092 ctl_done((union ctl_io *)ctsio); 6093 return (CTL_RETVAL_COMPLETE); 6094 } 6095 6096 /* 6097 * Run through the mode page, checking to make sure that the bits 6098 * the user changed are actually legal for him to change. 6099 */ 6100 for (i = 0; i < page_index->page_len; i++) { 6101 uint8_t *user_byte, *change_mask, *current_byte; 6102 int bad_bit; 6103 int j; 6104 6105 user_byte = (uint8_t *)page_header + i; 6106 change_mask = page_index->page_data + 6107 (page_index->page_len * CTL_PAGE_CHANGEABLE) + i; 6108 current_byte = page_index->page_data + 6109 (page_index->page_len * CTL_PAGE_CURRENT) + i; 6110 6111 /* 6112 * Check to see whether the user set any bits in this byte 6113 * that he is not allowed to set. 6114 */ 6115 if ((*user_byte & ~(*change_mask)) == 6116 (*current_byte & ~(*change_mask))) 6117 continue; 6118 6119 /* 6120 * Go through bit by bit to determine which one is illegal. 6121 */ 6122 bad_bit = 0; 6123 for (j = 7; j >= 0; j--) { 6124 if ((((1 << i) & ~(*change_mask)) & *user_byte) != 6125 (((1 << i) & ~(*change_mask)) & *current_byte)) { 6126 bad_bit = i; 6127 break; 6128 } 6129 } 6130 ctl_set_invalid_field(ctsio, 6131 /*sks_valid*/ 1, 6132 /*command*/ 0, 6133 /*field*/ *len_used + i, 6134 /*bit_valid*/ 1, 6135 /*bit*/ bad_bit); 6136 free(ctsio->kern_data_ptr, M_CTL); 6137 ctl_done((union ctl_io *)ctsio); 6138 return (CTL_RETVAL_COMPLETE); 6139 } 6140 6141 /* 6142 * Decrement these before we call the page handler, since we may 6143 * end up getting called back one way or another before the handler 6144 * returns to this context. 6145 */ 6146 *len_left -= page_index->page_len; 6147 *len_used += page_index->page_len; 6148 6149 retval = page_index->select_handler(ctsio, page_index, 6150 (uint8_t *)page_header); 6151 6152 /* 6153 * If the page handler returns CTL_RETVAL_QUEUED, then we need to 6154 * wait until this queued command completes to finish processing 6155 * the mode page. If it returns anything other than 6156 * CTL_RETVAL_COMPLETE (e.g. CTL_RETVAL_ERROR), then it should have 6157 * already set the sense information, freed the data pointer, and 6158 * completed the io for us. 6159 */ 6160 if (retval != CTL_RETVAL_COMPLETE) 6161 goto bailout_no_done; 6162 6163 /* 6164 * If the initiator sent us more than one page, parse the next one. 6165 */ 6166 if (*len_left > 0) 6167 goto do_next_page; 6168 6169 ctl_set_success(ctsio); 6170 free(ctsio->kern_data_ptr, M_CTL); 6171 ctl_done((union ctl_io *)ctsio); 6172 6173bailout_no_done: 6174 6175 return (CTL_RETVAL_COMPLETE); 6176 6177} 6178 6179int 6180ctl_mode_select(struct ctl_scsiio *ctsio) 6181{ 6182 int param_len, pf, sp; 6183 int header_size, bd_len; 6184 union ctl_modepage_info *modepage_info; 6185 6186 switch (ctsio->cdb[0]) { 6187 case MODE_SELECT_6: { 6188 struct scsi_mode_select_6 *cdb; 6189 6190 cdb = (struct scsi_mode_select_6 *)ctsio->cdb; 6191 6192 pf = (cdb->byte2 & SMS_PF) ? 1 : 0; 6193 sp = (cdb->byte2 & SMS_SP) ? 1 : 0; 6194 param_len = cdb->length; 6195 header_size = sizeof(struct scsi_mode_header_6); 6196 break; 6197 } 6198 case MODE_SELECT_10: { 6199 struct scsi_mode_select_10 *cdb; 6200 6201 cdb = (struct scsi_mode_select_10 *)ctsio->cdb; 6202 6203 pf = (cdb->byte2 & SMS_PF) ? 1 : 0; 6204 sp = (cdb->byte2 & SMS_SP) ? 1 : 0; 6205 param_len = scsi_2btoul(cdb->length); 6206 header_size = sizeof(struct scsi_mode_header_10); 6207 break; 6208 } 6209 default: 6210 ctl_set_invalid_opcode(ctsio); 6211 ctl_done((union ctl_io *)ctsio); 6212 return (CTL_RETVAL_COMPLETE); 6213 } 6214 6215 /* 6216 * From SPC-3: 6217 * "A parameter list length of zero indicates that the Data-Out Buffer 6218 * shall be empty. This condition shall not be considered as an error." 6219 */ 6220 if (param_len == 0) { 6221 ctl_set_success(ctsio); 6222 ctl_done((union ctl_io *)ctsio); 6223 return (CTL_RETVAL_COMPLETE); 6224 } 6225 6226 /* 6227 * Since we'll hit this the first time through, prior to 6228 * allocation, we don't need to free a data buffer here. 6229 */ 6230 if (param_len < header_size) { 6231 ctl_set_param_len_error(ctsio); 6232 ctl_done((union ctl_io *)ctsio); 6233 return (CTL_RETVAL_COMPLETE); 6234 } 6235 6236 /* 6237 * Allocate the data buffer and grab the user's data. In theory, 6238 * we shouldn't have to sanity check the parameter list length here 6239 * because the maximum size is 64K. We should be able to malloc 6240 * that much without too many problems. 6241 */ 6242 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 6243 ctsio->kern_data_ptr = malloc(param_len, M_CTL, M_WAITOK); 6244 ctsio->kern_data_len = param_len; 6245 ctsio->kern_total_len = param_len; 6246 ctsio->kern_data_resid = 0; 6247 ctsio->kern_rel_offset = 0; 6248 ctsio->kern_sg_entries = 0; 6249 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6250 ctsio->be_move_done = ctl_config_move_done; 6251 ctl_datamove((union ctl_io *)ctsio); 6252 6253 return (CTL_RETVAL_COMPLETE); 6254 } 6255 6256 switch (ctsio->cdb[0]) { 6257 case MODE_SELECT_6: { 6258 struct scsi_mode_header_6 *mh6; 6259 6260 mh6 = (struct scsi_mode_header_6 *)ctsio->kern_data_ptr; 6261 bd_len = mh6->blk_desc_len; 6262 break; 6263 } 6264 case MODE_SELECT_10: { 6265 struct scsi_mode_header_10 *mh10; 6266 6267 mh10 = (struct scsi_mode_header_10 *)ctsio->kern_data_ptr; 6268 bd_len = scsi_2btoul(mh10->blk_desc_len); 6269 break; 6270 } 6271 default: 6272 panic("%s: Invalid CDB type %#x", __func__, ctsio->cdb[0]); 6273 } 6274 6275 if (param_len < (header_size + bd_len)) { 6276 free(ctsio->kern_data_ptr, M_CTL); 6277 ctl_set_param_len_error(ctsio); 6278 ctl_done((union ctl_io *)ctsio); 6279 return (CTL_RETVAL_COMPLETE); 6280 } 6281 6282 /* 6283 * Set the IO_CONT flag, so that if this I/O gets passed to 6284 * ctl_config_write_done(), it'll get passed back to 6285 * ctl_do_mode_select() for further processing, or completion if 6286 * we're all done. 6287 */ 6288 ctsio->io_hdr.flags |= CTL_FLAG_IO_CONT; 6289 ctsio->io_cont = ctl_do_mode_select; 6290 6291 modepage_info = (union ctl_modepage_info *) 6292 ctsio->io_hdr.ctl_private[CTL_PRIV_MODEPAGE].bytes; 6293 memset(modepage_info, 0, sizeof(*modepage_info)); 6294 modepage_info->header.len_left = param_len - header_size - bd_len; 6295 modepage_info->header.len_used = header_size + bd_len; 6296 6297 return (ctl_do_mode_select((union ctl_io *)ctsio)); 6298} 6299 6300int 6301ctl_mode_sense(struct ctl_scsiio *ctsio) 6302{ 6303 struct ctl_lun *lun; 6304 int pc, page_code, dbd, llba, subpage; 6305 int alloc_len, page_len, header_len, total_len; 6306 struct scsi_mode_block_descr *block_desc; 6307 struct ctl_page_index *page_index; 6308 6309 dbd = 0; 6310 llba = 0; 6311 block_desc = NULL; 6312 6313 CTL_DEBUG_PRINT(("ctl_mode_sense\n")); 6314 6315 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6316 switch (ctsio->cdb[0]) { 6317 case MODE_SENSE_6: { 6318 struct scsi_mode_sense_6 *cdb; 6319 6320 cdb = (struct scsi_mode_sense_6 *)ctsio->cdb; 6321 6322 header_len = sizeof(struct scsi_mode_hdr_6); 6323 if (cdb->byte2 & SMS_DBD) 6324 dbd = 1; 6325 else 6326 header_len += sizeof(struct scsi_mode_block_descr); 6327 6328 pc = (cdb->page & SMS_PAGE_CTRL_MASK) >> 6; 6329 page_code = cdb->page & SMS_PAGE_CODE; 6330 subpage = cdb->subpage; 6331 alloc_len = cdb->length; 6332 break; 6333 } 6334 case MODE_SENSE_10: { 6335 struct scsi_mode_sense_10 *cdb; 6336 6337 cdb = (struct scsi_mode_sense_10 *)ctsio->cdb; 6338 6339 header_len = sizeof(struct scsi_mode_hdr_10); 6340 6341 if (cdb->byte2 & SMS_DBD) 6342 dbd = 1; 6343 else 6344 header_len += sizeof(struct scsi_mode_block_descr); 6345 if (cdb->byte2 & SMS10_LLBAA) 6346 llba = 1; 6347 pc = (cdb->page & SMS_PAGE_CTRL_MASK) >> 6; 6348 page_code = cdb->page & SMS_PAGE_CODE; 6349 subpage = cdb->subpage; 6350 alloc_len = scsi_2btoul(cdb->length); 6351 break; 6352 } 6353 default: 6354 ctl_set_invalid_opcode(ctsio); 6355 ctl_done((union ctl_io *)ctsio); 6356 return (CTL_RETVAL_COMPLETE); 6357 break; /* NOTREACHED */ 6358 } 6359 6360 /* 6361 * We have to make a first pass through to calculate the size of 6362 * the pages that match the user's query. Then we allocate enough 6363 * memory to hold it, and actually copy the data into the buffer. 6364 */ 6365 switch (page_code) { 6366 case SMS_ALL_PAGES_PAGE: { 6367 u_int i; 6368 6369 page_len = 0; 6370 6371 /* 6372 * At the moment, values other than 0 and 0xff here are 6373 * reserved according to SPC-3. 6374 */ 6375 if ((subpage != SMS_SUBPAGE_PAGE_0) 6376 && (subpage != SMS_SUBPAGE_ALL)) { 6377 ctl_set_invalid_field(ctsio, 6378 /*sks_valid*/ 1, 6379 /*command*/ 1, 6380 /*field*/ 3, 6381 /*bit_valid*/ 0, 6382 /*bit*/ 0); 6383 ctl_done((union ctl_io *)ctsio); 6384 return (CTL_RETVAL_COMPLETE); 6385 } 6386 6387 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6388 page_index = &lun->mode_pages.index[i]; 6389 6390 /* Make sure the page is supported for this dev type */ 6391 if (lun->be_lun->lun_type == T_DIRECT && 6392 (page_index->page_flags & CTL_PAGE_FLAG_DIRECT) == 0) 6393 continue; 6394 if (lun->be_lun->lun_type == T_PROCESSOR && 6395 (page_index->page_flags & CTL_PAGE_FLAG_PROC) == 0) 6396 continue; 6397 if (lun->be_lun->lun_type == T_CDROM && 6398 (page_index->page_flags & CTL_PAGE_FLAG_CDROM) == 0) 6399 continue; 6400 6401 /* 6402 * We don't use this subpage if the user didn't 6403 * request all subpages. 6404 */ 6405 if ((page_index->subpage != 0) 6406 && (subpage == SMS_SUBPAGE_PAGE_0)) 6407 continue; 6408 6409#if 0 6410 printf("found page %#x len %d\n", 6411 page_index->page_code & SMPH_PC_MASK, 6412 page_index->page_len); 6413#endif 6414 page_len += page_index->page_len; 6415 } 6416 break; 6417 } 6418 default: { 6419 u_int i; 6420 6421 page_len = 0; 6422 6423 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6424 page_index = &lun->mode_pages.index[i]; 6425 6426 /* Make sure the page is supported for this dev type */ 6427 if (lun->be_lun->lun_type == T_DIRECT && 6428 (page_index->page_flags & CTL_PAGE_FLAG_DIRECT) == 0) 6429 continue; 6430 if (lun->be_lun->lun_type == T_PROCESSOR && 6431 (page_index->page_flags & CTL_PAGE_FLAG_PROC) == 0) 6432 continue; 6433 if (lun->be_lun->lun_type == T_CDROM && 6434 (page_index->page_flags & CTL_PAGE_FLAG_CDROM) == 0) 6435 continue; 6436 6437 /* Look for the right page code */ 6438 if ((page_index->page_code & SMPH_PC_MASK) != page_code) 6439 continue; 6440 6441 /* Look for the right subpage or the subpage wildcard*/ 6442 if ((page_index->subpage != subpage) 6443 && (subpage != SMS_SUBPAGE_ALL)) 6444 continue; 6445 6446#if 0 6447 printf("found page %#x len %d\n", 6448 page_index->page_code & SMPH_PC_MASK, 6449 page_index->page_len); 6450#endif 6451 6452 page_len += page_index->page_len; 6453 } 6454 6455 if (page_len == 0) { 6456 ctl_set_invalid_field(ctsio, 6457 /*sks_valid*/ 1, 6458 /*command*/ 1, 6459 /*field*/ 2, 6460 /*bit_valid*/ 1, 6461 /*bit*/ 5); 6462 ctl_done((union ctl_io *)ctsio); 6463 return (CTL_RETVAL_COMPLETE); 6464 } 6465 break; 6466 } 6467 } 6468 6469 total_len = header_len + page_len; 6470#if 0 6471 printf("header_len = %d, page_len = %d, total_len = %d\n", 6472 header_len, page_len, total_len); 6473#endif 6474 6475 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 6476 ctsio->kern_sg_entries = 0; 6477 ctsio->kern_data_resid = 0; 6478 ctsio->kern_rel_offset = 0; 6479 if (total_len < alloc_len) { 6480 ctsio->residual = alloc_len - total_len; 6481 ctsio->kern_data_len = total_len; 6482 ctsio->kern_total_len = total_len; 6483 } else { 6484 ctsio->residual = 0; 6485 ctsio->kern_data_len = alloc_len; 6486 ctsio->kern_total_len = alloc_len; 6487 } 6488 6489 switch (ctsio->cdb[0]) { 6490 case MODE_SENSE_6: { 6491 struct scsi_mode_hdr_6 *header; 6492 6493 header = (struct scsi_mode_hdr_6 *)ctsio->kern_data_ptr; 6494 6495 header->datalen = MIN(total_len - 1, 254); 6496 if (lun->be_lun->lun_type == T_DIRECT) { 6497 header->dev_specific = 0x10; /* DPOFUA */ 6498 if ((lun->be_lun->flags & CTL_LUN_FLAG_READONLY) || 6499 (lun->MODE_CTRL.eca_and_aen & SCP_SWP) != 0) 6500 header->dev_specific |= 0x80; /* WP */ 6501 } 6502 if (dbd) 6503 header->block_descr_len = 0; 6504 else 6505 header->block_descr_len = 6506 sizeof(struct scsi_mode_block_descr); 6507 block_desc = (struct scsi_mode_block_descr *)&header[1]; 6508 break; 6509 } 6510 case MODE_SENSE_10: { 6511 struct scsi_mode_hdr_10 *header; 6512 int datalen; 6513 6514 header = (struct scsi_mode_hdr_10 *)ctsio->kern_data_ptr; 6515 6516 datalen = MIN(total_len - 2, 65533); 6517 scsi_ulto2b(datalen, header->datalen); 6518 if (lun->be_lun->lun_type == T_DIRECT) { 6519 header->dev_specific = 0x10; /* DPOFUA */ 6520 if ((lun->be_lun->flags & CTL_LUN_FLAG_READONLY) || 6521 (lun->MODE_CTRL.eca_and_aen & SCP_SWP) != 0) 6522 header->dev_specific |= 0x80; /* WP */ 6523 } 6524 if (dbd) 6525 scsi_ulto2b(0, header->block_descr_len); 6526 else 6527 scsi_ulto2b(sizeof(struct scsi_mode_block_descr), 6528 header->block_descr_len); 6529 block_desc = (struct scsi_mode_block_descr *)&header[1]; 6530 break; 6531 } 6532 default: 6533 panic("%s: Invalid CDB type %#x", __func__, ctsio->cdb[0]); 6534 } 6535 6536 /* 6537 * If we've got a disk, use its blocksize in the block 6538 * descriptor. Otherwise, just set it to 0. 6539 */ 6540 if (dbd == 0) { 6541 if (lun->be_lun->lun_type == T_DIRECT) 6542 scsi_ulto3b(lun->be_lun->blocksize, 6543 block_desc->block_len); 6544 else 6545 scsi_ulto3b(0, block_desc->block_len); 6546 } 6547 6548 switch (page_code) { 6549 case SMS_ALL_PAGES_PAGE: { 6550 int i, data_used; 6551 6552 data_used = header_len; 6553 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6554 struct ctl_page_index *page_index; 6555 6556 page_index = &lun->mode_pages.index[i]; 6557 if (lun->be_lun->lun_type == T_DIRECT && 6558 (page_index->page_flags & CTL_PAGE_FLAG_DIRECT) == 0) 6559 continue; 6560 if (lun->be_lun->lun_type == T_PROCESSOR && 6561 (page_index->page_flags & CTL_PAGE_FLAG_PROC) == 0) 6562 continue; 6563 if (lun->be_lun->lun_type == T_CDROM && 6564 (page_index->page_flags & CTL_PAGE_FLAG_CDROM) == 0) 6565 continue; 6566 6567 /* 6568 * We don't use this subpage if the user didn't 6569 * request all subpages. We already checked (above) 6570 * to make sure the user only specified a subpage 6571 * of 0 or 0xff in the SMS_ALL_PAGES_PAGE case. 6572 */ 6573 if ((page_index->subpage != 0) 6574 && (subpage == SMS_SUBPAGE_PAGE_0)) 6575 continue; 6576 6577 /* 6578 * Call the handler, if it exists, to update the 6579 * page to the latest values. 6580 */ 6581 if (page_index->sense_handler != NULL) 6582 page_index->sense_handler(ctsio, page_index,pc); 6583 6584 memcpy(ctsio->kern_data_ptr + data_used, 6585 page_index->page_data + 6586 (page_index->page_len * pc), 6587 page_index->page_len); 6588 data_used += page_index->page_len; 6589 } 6590 break; 6591 } 6592 default: { 6593 int i, data_used; 6594 6595 data_used = header_len; 6596 6597 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6598 struct ctl_page_index *page_index; 6599 6600 page_index = &lun->mode_pages.index[i]; 6601 6602 /* Look for the right page code */ 6603 if ((page_index->page_code & SMPH_PC_MASK) != page_code) 6604 continue; 6605 6606 /* Look for the right subpage or the subpage wildcard*/ 6607 if ((page_index->subpage != subpage) 6608 && (subpage != SMS_SUBPAGE_ALL)) 6609 continue; 6610 6611 /* Make sure the page is supported for this dev type */ 6612 if (lun->be_lun->lun_type == T_DIRECT && 6613 (page_index->page_flags & CTL_PAGE_FLAG_DIRECT) == 0) 6614 continue; 6615 if (lun->be_lun->lun_type == T_PROCESSOR && 6616 (page_index->page_flags & CTL_PAGE_FLAG_PROC) == 0) 6617 continue; 6618 if (lun->be_lun->lun_type == T_CDROM && 6619 (page_index->page_flags & CTL_PAGE_FLAG_CDROM) == 0) 6620 continue; 6621 6622 /* 6623 * Call the handler, if it exists, to update the 6624 * page to the latest values. 6625 */ 6626 if (page_index->sense_handler != NULL) 6627 page_index->sense_handler(ctsio, page_index,pc); 6628 6629 memcpy(ctsio->kern_data_ptr + data_used, 6630 page_index->page_data + 6631 (page_index->page_len * pc), 6632 page_index->page_len); 6633 data_used += page_index->page_len; 6634 } 6635 break; 6636 } 6637 } 6638 6639 ctl_set_success(ctsio); 6640 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6641 ctsio->be_move_done = ctl_config_move_done; 6642 ctl_datamove((union ctl_io *)ctsio); 6643 return (CTL_RETVAL_COMPLETE); 6644} 6645 6646int 6647ctl_lbp_log_sense_handler(struct ctl_scsiio *ctsio, 6648 struct ctl_page_index *page_index, 6649 int pc) 6650{ 6651 struct ctl_lun *lun; 6652 struct scsi_log_param_header *phdr; 6653 uint8_t *data; 6654 uint64_t val; 6655 6656 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6657 data = page_index->page_data; 6658 6659 if (lun->backend->lun_attr != NULL && 6660 (val = lun->backend->lun_attr(lun->be_lun->be_lun, "blocksavail")) 6661 != UINT64_MAX) { 6662 phdr = (struct scsi_log_param_header *)data; 6663 scsi_ulto2b(0x0001, 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 if (lun->backend->lun_attr != NULL && 6673 (val = lun->backend->lun_attr(lun->be_lun->be_lun, "blocksused")) 6674 != UINT64_MAX) { 6675 phdr = (struct scsi_log_param_header *)data; 6676 scsi_ulto2b(0x0002, phdr->param_code); 6677 phdr->param_control = SLP_LBIN | SLP_LP; 6678 phdr->param_len = 8; 6679 data = (uint8_t *)(phdr + 1); 6680 scsi_ulto4b(val >> CTL_LBP_EXPONENT, data); 6681 data[4] = 0x01; /* per-LUN */ 6682 data += phdr->param_len; 6683 } 6684 6685 if (lun->backend->lun_attr != NULL && 6686 (val = lun->backend->lun_attr(lun->be_lun->be_lun, "poolblocksavail")) 6687 != UINT64_MAX) { 6688 phdr = (struct scsi_log_param_header *)data; 6689 scsi_ulto2b(0x00f1, phdr->param_code); 6690 phdr->param_control = SLP_LBIN | SLP_LP; 6691 phdr->param_len = 8; 6692 data = (uint8_t *)(phdr + 1); 6693 scsi_ulto4b(val >> CTL_LBP_EXPONENT, data); 6694 data[4] = 0x02; /* per-pool */ 6695 data += phdr->param_len; 6696 } 6697 6698 if (lun->backend->lun_attr != NULL && 6699 (val = lun->backend->lun_attr(lun->be_lun->be_lun, "poolblocksused")) 6700 != UINT64_MAX) { 6701 phdr = (struct scsi_log_param_header *)data; 6702 scsi_ulto2b(0x00f2, phdr->param_code); 6703 phdr->param_control = SLP_LBIN | SLP_LP; 6704 phdr->param_len = 8; 6705 data = (uint8_t *)(phdr + 1); 6706 scsi_ulto4b(val >> CTL_LBP_EXPONENT, data); 6707 data[4] = 0x02; /* per-pool */ 6708 data += phdr->param_len; 6709 } 6710 6711 page_index->page_len = data - page_index->page_data; 6712 return (0); 6713} 6714 6715int 6716ctl_sap_log_sense_handler(struct ctl_scsiio *ctsio, 6717 struct ctl_page_index *page_index, 6718 int pc) 6719{ 6720 struct ctl_lun *lun; 6721 struct stat_page *data; 6722 uint64_t rn, wn, rb, wb; 6723 struct bintime rt, wt; 6724 int i; 6725 6726 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6727 data = (struct stat_page *)page_index->page_data; 6728 6729 scsi_ulto2b(SLP_SAP, data->sap.hdr.param_code); 6730 data->sap.hdr.param_control = SLP_LBIN; 6731 data->sap.hdr.param_len = sizeof(struct scsi_log_stat_and_perf) - 6732 sizeof(struct scsi_log_param_header); 6733 rn = wn = rb = wb = 0; 6734 bintime_clear(&rt); 6735 bintime_clear(&wt); 6736 for (i = 0; i < CTL_MAX_PORTS; i++) { 6737 rn += lun->stats.ports[i].operations[CTL_STATS_READ]; 6738 wn += lun->stats.ports[i].operations[CTL_STATS_WRITE]; 6739 rb += lun->stats.ports[i].bytes[CTL_STATS_READ]; 6740 wb += lun->stats.ports[i].bytes[CTL_STATS_WRITE]; 6741 bintime_add(&rt, &lun->stats.ports[i].time[CTL_STATS_READ]); 6742 bintime_add(&wt, &lun->stats.ports[i].time[CTL_STATS_WRITE]); 6743 } 6744 scsi_u64to8b(rn, data->sap.read_num); 6745 scsi_u64to8b(wn, data->sap.write_num); 6746 if (lun->stats.blocksize > 0) { 6747 scsi_u64to8b(wb / lun->stats.blocksize, 6748 data->sap.recvieved_lba); 6749 scsi_u64to8b(rb / lun->stats.blocksize, 6750 data->sap.transmitted_lba); 6751 } 6752 scsi_u64to8b((uint64_t)rt.sec * 1000 + rt.frac / (UINT64_MAX / 1000), 6753 data->sap.read_int); 6754 scsi_u64to8b((uint64_t)wt.sec * 1000 + wt.frac / (UINT64_MAX / 1000), 6755 data->sap.write_int); 6756 scsi_u64to8b(0, data->sap.weighted_num); 6757 scsi_u64to8b(0, data->sap.weighted_int); 6758 scsi_ulto2b(SLP_IT, data->it.hdr.param_code); 6759 data->it.hdr.param_control = SLP_LBIN; 6760 data->it.hdr.param_len = sizeof(struct scsi_log_idle_time) - 6761 sizeof(struct scsi_log_param_header); 6762#ifdef CTL_TIME_IO 6763 scsi_u64to8b(lun->idle_time / SBT_1MS, data->it.idle_int); 6764#endif 6765 scsi_ulto2b(SLP_TI, data->ti.hdr.param_code); 6766 data->it.hdr.param_control = SLP_LBIN; 6767 data->ti.hdr.param_len = sizeof(struct scsi_log_time_interval) - 6768 sizeof(struct scsi_log_param_header); 6769 scsi_ulto4b(3, data->ti.exponent); 6770 scsi_ulto4b(1, data->ti.integer); 6771 return (0); 6772} 6773 6774int 6775ctl_ie_log_sense_handler(struct ctl_scsiio *ctsio, 6776 struct ctl_page_index *page_index, 6777 int pc) 6778{ 6779 struct ctl_lun *lun; 6780 struct scsi_log_informational_exceptions *data; 6781 6782 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6783 data = (struct scsi_log_informational_exceptions *)page_index->page_data; 6784 6785 scsi_ulto2b(SLP_IE_GEN, data->hdr.param_code); 6786 data->hdr.param_control = SLP_LBIN; 6787 data->hdr.param_len = sizeof(struct scsi_log_informational_exceptions) - 6788 sizeof(struct scsi_log_param_header); 6789 data->ie_asc = lun->ie_asc; 6790 data->ie_ascq = lun->ie_ascq; 6791 data->temperature = 0xff; 6792 return (0); 6793} 6794 6795int 6796ctl_log_sense(struct ctl_scsiio *ctsio) 6797{ 6798 struct ctl_lun *lun; 6799 int i, pc, page_code, subpage; 6800 int alloc_len, total_len; 6801 struct ctl_page_index *page_index; 6802 struct scsi_log_sense *cdb; 6803 struct scsi_log_header *header; 6804 6805 CTL_DEBUG_PRINT(("ctl_log_sense\n")); 6806 6807 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6808 cdb = (struct scsi_log_sense *)ctsio->cdb; 6809 pc = (cdb->page & SLS_PAGE_CTRL_MASK) >> 6; 6810 page_code = cdb->page & SLS_PAGE_CODE; 6811 subpage = cdb->subpage; 6812 alloc_len = scsi_2btoul(cdb->length); 6813 6814 page_index = NULL; 6815 for (i = 0; i < CTL_NUM_LOG_PAGES; i++) { 6816 page_index = &lun->log_pages.index[i]; 6817 6818 /* Look for the right page code */ 6819 if ((page_index->page_code & SL_PAGE_CODE) != page_code) 6820 continue; 6821 6822 /* Look for the right subpage or the subpage wildcard*/ 6823 if (page_index->subpage != subpage) 6824 continue; 6825 6826 break; 6827 } 6828 if (i >= CTL_NUM_LOG_PAGES) { 6829 ctl_set_invalid_field(ctsio, 6830 /*sks_valid*/ 1, 6831 /*command*/ 1, 6832 /*field*/ 2, 6833 /*bit_valid*/ 0, 6834 /*bit*/ 0); 6835 ctl_done((union ctl_io *)ctsio); 6836 return (CTL_RETVAL_COMPLETE); 6837 } 6838 6839 total_len = sizeof(struct scsi_log_header) + page_index->page_len; 6840 6841 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 6842 ctsio->kern_sg_entries = 0; 6843 ctsio->kern_data_resid = 0; 6844 ctsio->kern_rel_offset = 0; 6845 if (total_len < alloc_len) { 6846 ctsio->residual = alloc_len - total_len; 6847 ctsio->kern_data_len = total_len; 6848 ctsio->kern_total_len = total_len; 6849 } else { 6850 ctsio->residual = 0; 6851 ctsio->kern_data_len = alloc_len; 6852 ctsio->kern_total_len = alloc_len; 6853 } 6854 6855 header = (struct scsi_log_header *)ctsio->kern_data_ptr; 6856 header->page = page_index->page_code; 6857 if (page_index->page_code == SLS_LOGICAL_BLOCK_PROVISIONING) 6858 header->page |= SL_DS; 6859 if (page_index->subpage) { 6860 header->page |= SL_SPF; 6861 header->subpage = page_index->subpage; 6862 } 6863 scsi_ulto2b(page_index->page_len, header->datalen); 6864 6865 /* 6866 * Call the handler, if it exists, to update the 6867 * page to the latest values. 6868 */ 6869 if (page_index->sense_handler != NULL) 6870 page_index->sense_handler(ctsio, page_index, pc); 6871 6872 memcpy(header + 1, page_index->page_data, page_index->page_len); 6873 6874 ctl_set_success(ctsio); 6875 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6876 ctsio->be_move_done = ctl_config_move_done; 6877 ctl_datamove((union ctl_io *)ctsio); 6878 return (CTL_RETVAL_COMPLETE); 6879} 6880 6881int 6882ctl_read_capacity(struct ctl_scsiio *ctsio) 6883{ 6884 struct scsi_read_capacity *cdb; 6885 struct scsi_read_capacity_data *data; 6886 struct ctl_lun *lun; 6887 uint32_t lba; 6888 6889 CTL_DEBUG_PRINT(("ctl_read_capacity\n")); 6890 6891 cdb = (struct scsi_read_capacity *)ctsio->cdb; 6892 6893 lba = scsi_4btoul(cdb->addr); 6894 if (((cdb->pmi & SRC_PMI) == 0) 6895 && (lba != 0)) { 6896 ctl_set_invalid_field(/*ctsio*/ ctsio, 6897 /*sks_valid*/ 1, 6898 /*command*/ 1, 6899 /*field*/ 2, 6900 /*bit_valid*/ 0, 6901 /*bit*/ 0); 6902 ctl_done((union ctl_io *)ctsio); 6903 return (CTL_RETVAL_COMPLETE); 6904 } 6905 6906 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6907 6908 ctsio->kern_data_ptr = malloc(sizeof(*data), M_CTL, M_WAITOK | M_ZERO); 6909 data = (struct scsi_read_capacity_data *)ctsio->kern_data_ptr; 6910 ctsio->residual = 0; 6911 ctsio->kern_data_len = sizeof(*data); 6912 ctsio->kern_total_len = sizeof(*data); 6913 ctsio->kern_data_resid = 0; 6914 ctsio->kern_rel_offset = 0; 6915 ctsio->kern_sg_entries = 0; 6916 6917 /* 6918 * If the maximum LBA is greater than 0xfffffffe, the user must 6919 * issue a SERVICE ACTION IN (16) command, with the read capacity 6920 * serivce action set. 6921 */ 6922 if (lun->be_lun->maxlba > 0xfffffffe) 6923 scsi_ulto4b(0xffffffff, data->addr); 6924 else 6925 scsi_ulto4b(lun->be_lun->maxlba, data->addr); 6926 6927 /* 6928 * XXX KDM this may not be 512 bytes... 6929 */ 6930 scsi_ulto4b(lun->be_lun->blocksize, data->length); 6931 6932 ctl_set_success(ctsio); 6933 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6934 ctsio->be_move_done = ctl_config_move_done; 6935 ctl_datamove((union ctl_io *)ctsio); 6936 return (CTL_RETVAL_COMPLETE); 6937} 6938 6939int 6940ctl_read_capacity_16(struct ctl_scsiio *ctsio) 6941{ 6942 struct scsi_read_capacity_16 *cdb; 6943 struct scsi_read_capacity_data_long *data; 6944 struct ctl_lun *lun; 6945 uint64_t lba; 6946 uint32_t alloc_len; 6947 6948 CTL_DEBUG_PRINT(("ctl_read_capacity_16\n")); 6949 6950 cdb = (struct scsi_read_capacity_16 *)ctsio->cdb; 6951 6952 alloc_len = scsi_4btoul(cdb->alloc_len); 6953 lba = scsi_8btou64(cdb->addr); 6954 6955 if ((cdb->reladr & SRC16_PMI) 6956 && (lba != 0)) { 6957 ctl_set_invalid_field(/*ctsio*/ ctsio, 6958 /*sks_valid*/ 1, 6959 /*command*/ 1, 6960 /*field*/ 2, 6961 /*bit_valid*/ 0, 6962 /*bit*/ 0); 6963 ctl_done((union ctl_io *)ctsio); 6964 return (CTL_RETVAL_COMPLETE); 6965 } 6966 6967 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6968 6969 ctsio->kern_data_ptr = malloc(sizeof(*data), M_CTL, M_WAITOK | M_ZERO); 6970 data = (struct scsi_read_capacity_data_long *)ctsio->kern_data_ptr; 6971 6972 if (sizeof(*data) < alloc_len) { 6973 ctsio->residual = alloc_len - sizeof(*data); 6974 ctsio->kern_data_len = sizeof(*data); 6975 ctsio->kern_total_len = sizeof(*data); 6976 } else { 6977 ctsio->residual = 0; 6978 ctsio->kern_data_len = alloc_len; 6979 ctsio->kern_total_len = alloc_len; 6980 } 6981 ctsio->kern_data_resid = 0; 6982 ctsio->kern_rel_offset = 0; 6983 ctsio->kern_sg_entries = 0; 6984 6985 scsi_u64to8b(lun->be_lun->maxlba, data->addr); 6986 /* XXX KDM this may not be 512 bytes... */ 6987 scsi_ulto4b(lun->be_lun->blocksize, data->length); 6988 data->prot_lbppbe = lun->be_lun->pblockexp & SRC16_LBPPBE; 6989 scsi_ulto2b(lun->be_lun->pblockoff & SRC16_LALBA_A, data->lalba_lbp); 6990 if (lun->be_lun->flags & CTL_LUN_FLAG_UNMAP) 6991 data->lalba_lbp[0] |= SRC16_LBPME | SRC16_LBPRZ; 6992 6993 ctl_set_success(ctsio); 6994 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6995 ctsio->be_move_done = ctl_config_move_done; 6996 ctl_datamove((union ctl_io *)ctsio); 6997 return (CTL_RETVAL_COMPLETE); 6998} 6999 7000int 7001ctl_get_lba_status(struct ctl_scsiio *ctsio) 7002{ 7003 struct scsi_get_lba_status *cdb; 7004 struct scsi_get_lba_status_data *data; 7005 struct ctl_lun *lun; 7006 struct ctl_lba_len_flags *lbalen; 7007 uint64_t lba; 7008 uint32_t alloc_len, total_len; 7009 int retval; 7010 7011 CTL_DEBUG_PRINT(("ctl_get_lba_status\n")); 7012 7013 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7014 cdb = (struct scsi_get_lba_status *)ctsio->cdb; 7015 lba = scsi_8btou64(cdb->addr); 7016 alloc_len = scsi_4btoul(cdb->alloc_len); 7017 7018 if (lba > lun->be_lun->maxlba) { 7019 ctl_set_lba_out_of_range(ctsio, lba); 7020 ctl_done((union ctl_io *)ctsio); 7021 return (CTL_RETVAL_COMPLETE); 7022 } 7023 7024 total_len = sizeof(*data) + sizeof(data->descr[0]); 7025 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7026 data = (struct scsi_get_lba_status_data *)ctsio->kern_data_ptr; 7027 7028 if (total_len < alloc_len) { 7029 ctsio->residual = alloc_len - total_len; 7030 ctsio->kern_data_len = total_len; 7031 ctsio->kern_total_len = total_len; 7032 } else { 7033 ctsio->residual = 0; 7034 ctsio->kern_data_len = alloc_len; 7035 ctsio->kern_total_len = alloc_len; 7036 } 7037 ctsio->kern_data_resid = 0; 7038 ctsio->kern_rel_offset = 0; 7039 ctsio->kern_sg_entries = 0; 7040 7041 /* Fill dummy data in case backend can't tell anything. */ 7042 scsi_ulto4b(4 + sizeof(data->descr[0]), data->length); 7043 scsi_u64to8b(lba, data->descr[0].addr); 7044 scsi_ulto4b(MIN(UINT32_MAX, lun->be_lun->maxlba + 1 - lba), 7045 data->descr[0].length); 7046 data->descr[0].status = 0; /* Mapped or unknown. */ 7047 7048 ctl_set_success(ctsio); 7049 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7050 ctsio->be_move_done = ctl_config_move_done; 7051 7052 lbalen = (struct ctl_lba_len_flags *)&ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 7053 lbalen->lba = lba; 7054 lbalen->len = total_len; 7055 lbalen->flags = 0; 7056 retval = lun->backend->config_read((union ctl_io *)ctsio); 7057 return (CTL_RETVAL_COMPLETE); 7058} 7059 7060int 7061ctl_read_defect(struct ctl_scsiio *ctsio) 7062{ 7063 struct scsi_read_defect_data_10 *ccb10; 7064 struct scsi_read_defect_data_12 *ccb12; 7065 struct scsi_read_defect_data_hdr_10 *data10; 7066 struct scsi_read_defect_data_hdr_12 *data12; 7067 uint32_t alloc_len, data_len; 7068 uint8_t format; 7069 7070 CTL_DEBUG_PRINT(("ctl_read_defect\n")); 7071 7072 if (ctsio->cdb[0] == READ_DEFECT_DATA_10) { 7073 ccb10 = (struct scsi_read_defect_data_10 *)&ctsio->cdb; 7074 format = ccb10->format; 7075 alloc_len = scsi_2btoul(ccb10->alloc_length); 7076 data_len = sizeof(*data10); 7077 } else { 7078 ccb12 = (struct scsi_read_defect_data_12 *)&ctsio->cdb; 7079 format = ccb12->format; 7080 alloc_len = scsi_4btoul(ccb12->alloc_length); 7081 data_len = sizeof(*data12); 7082 } 7083 if (alloc_len == 0) { 7084 ctl_set_success(ctsio); 7085 ctl_done((union ctl_io *)ctsio); 7086 return (CTL_RETVAL_COMPLETE); 7087 } 7088 7089 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 7090 if (data_len < alloc_len) { 7091 ctsio->residual = alloc_len - data_len; 7092 ctsio->kern_data_len = data_len; 7093 ctsio->kern_total_len = data_len; 7094 } else { 7095 ctsio->residual = 0; 7096 ctsio->kern_data_len = alloc_len; 7097 ctsio->kern_total_len = alloc_len; 7098 } 7099 ctsio->kern_data_resid = 0; 7100 ctsio->kern_rel_offset = 0; 7101 ctsio->kern_sg_entries = 0; 7102 7103 if (ctsio->cdb[0] == READ_DEFECT_DATA_10) { 7104 data10 = (struct scsi_read_defect_data_hdr_10 *) 7105 ctsio->kern_data_ptr; 7106 data10->format = format; 7107 scsi_ulto2b(0, data10->length); 7108 } else { 7109 data12 = (struct scsi_read_defect_data_hdr_12 *) 7110 ctsio->kern_data_ptr; 7111 data12->format = format; 7112 scsi_ulto2b(0, data12->generation); 7113 scsi_ulto4b(0, data12->length); 7114 } 7115 7116 ctl_set_success(ctsio); 7117 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7118 ctsio->be_move_done = ctl_config_move_done; 7119 ctl_datamove((union ctl_io *)ctsio); 7120 return (CTL_RETVAL_COMPLETE); 7121} 7122 7123int 7124ctl_report_tagret_port_groups(struct ctl_scsiio *ctsio) 7125{ 7126 struct scsi_maintenance_in *cdb; 7127 int retval; 7128 int alloc_len, ext, total_len = 0, g, pc, pg, ts, os; 7129 int num_ha_groups, num_target_ports, shared_group; 7130 struct ctl_lun *lun; 7131 struct ctl_softc *softc; 7132 struct ctl_port *port; 7133 struct scsi_target_group_data *rtg_ptr; 7134 struct scsi_target_group_data_extended *rtg_ext_ptr; 7135 struct scsi_target_port_group_descriptor *tpg_desc; 7136 7137 CTL_DEBUG_PRINT(("ctl_report_tagret_port_groups\n")); 7138 7139 cdb = (struct scsi_maintenance_in *)ctsio->cdb; 7140 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7141 softc = lun->ctl_softc; 7142 7143 retval = CTL_RETVAL_COMPLETE; 7144 7145 switch (cdb->byte2 & STG_PDF_MASK) { 7146 case STG_PDF_LENGTH: 7147 ext = 0; 7148 break; 7149 case STG_PDF_EXTENDED: 7150 ext = 1; 7151 break; 7152 default: 7153 ctl_set_invalid_field(/*ctsio*/ ctsio, 7154 /*sks_valid*/ 1, 7155 /*command*/ 1, 7156 /*field*/ 2, 7157 /*bit_valid*/ 1, 7158 /*bit*/ 5); 7159 ctl_done((union ctl_io *)ctsio); 7160 return(retval); 7161 } 7162 7163 num_target_ports = 0; 7164 shared_group = (softc->is_single != 0); 7165 mtx_lock(&softc->ctl_lock); 7166 STAILQ_FOREACH(port, &softc->port_list, links) { 7167 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 7168 continue; 7169 if (ctl_lun_map_to_port(port, lun->lun) >= CTL_MAX_LUNS) 7170 continue; 7171 num_target_ports++; 7172 if (port->status & CTL_PORT_STATUS_HA_SHARED) 7173 shared_group = 1; 7174 } 7175 mtx_unlock(&softc->ctl_lock); 7176 num_ha_groups = (softc->is_single) ? 0 : NUM_HA_SHELVES; 7177 7178 if (ext) 7179 total_len = sizeof(struct scsi_target_group_data_extended); 7180 else 7181 total_len = sizeof(struct scsi_target_group_data); 7182 total_len += sizeof(struct scsi_target_port_group_descriptor) * 7183 (shared_group + num_ha_groups) + 7184 sizeof(struct scsi_target_port_descriptor) * num_target_ports; 7185 7186 alloc_len = scsi_4btoul(cdb->length); 7187 7188 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7189 7190 ctsio->kern_sg_entries = 0; 7191 7192 if (total_len < alloc_len) { 7193 ctsio->residual = alloc_len - total_len; 7194 ctsio->kern_data_len = total_len; 7195 ctsio->kern_total_len = total_len; 7196 } else { 7197 ctsio->residual = 0; 7198 ctsio->kern_data_len = alloc_len; 7199 ctsio->kern_total_len = alloc_len; 7200 } 7201 ctsio->kern_data_resid = 0; 7202 ctsio->kern_rel_offset = 0; 7203 7204 if (ext) { 7205 rtg_ext_ptr = (struct scsi_target_group_data_extended *) 7206 ctsio->kern_data_ptr; 7207 scsi_ulto4b(total_len - 4, rtg_ext_ptr->length); 7208 rtg_ext_ptr->format_type = 0x10; 7209 rtg_ext_ptr->implicit_transition_time = 0; 7210 tpg_desc = &rtg_ext_ptr->groups[0]; 7211 } else { 7212 rtg_ptr = (struct scsi_target_group_data *) 7213 ctsio->kern_data_ptr; 7214 scsi_ulto4b(total_len - 4, rtg_ptr->length); 7215 tpg_desc = &rtg_ptr->groups[0]; 7216 } 7217 7218 mtx_lock(&softc->ctl_lock); 7219 pg = softc->port_min / softc->port_cnt; 7220 if (lun->flags & (CTL_LUN_PRIMARY_SC | CTL_LUN_PEER_SC_PRIMARY)) { 7221 /* Some shelf is known to be primary. */ 7222 if (softc->ha_link == CTL_HA_LINK_OFFLINE) 7223 os = TPG_ASYMMETRIC_ACCESS_UNAVAILABLE; 7224 else if (softc->ha_link == CTL_HA_LINK_UNKNOWN) 7225 os = TPG_ASYMMETRIC_ACCESS_TRANSITIONING; 7226 else if (softc->ha_mode == CTL_HA_MODE_ACT_STBY) 7227 os = TPG_ASYMMETRIC_ACCESS_STANDBY; 7228 else 7229 os = TPG_ASYMMETRIC_ACCESS_NONOPTIMIZED; 7230 if (lun->flags & CTL_LUN_PRIMARY_SC) { 7231 ts = TPG_ASYMMETRIC_ACCESS_OPTIMIZED; 7232 } else { 7233 ts = os; 7234 os = TPG_ASYMMETRIC_ACCESS_OPTIMIZED; 7235 } 7236 } else { 7237 /* No known primary shelf. */ 7238 if (softc->ha_link == CTL_HA_LINK_OFFLINE) { 7239 ts = TPG_ASYMMETRIC_ACCESS_UNAVAILABLE; 7240 os = TPG_ASYMMETRIC_ACCESS_OPTIMIZED; 7241 } else if (softc->ha_link == CTL_HA_LINK_UNKNOWN) { 7242 ts = TPG_ASYMMETRIC_ACCESS_TRANSITIONING; 7243 os = TPG_ASYMMETRIC_ACCESS_OPTIMIZED; 7244 } else { 7245 ts = os = TPG_ASYMMETRIC_ACCESS_TRANSITIONING; 7246 } 7247 } 7248 if (shared_group) { 7249 tpg_desc->pref_state = ts; 7250 tpg_desc->support = TPG_AO_SUP | TPG_AN_SUP | TPG_S_SUP | 7251 TPG_U_SUP | TPG_T_SUP; 7252 scsi_ulto2b(1, tpg_desc->target_port_group); 7253 tpg_desc->status = TPG_IMPLICIT; 7254 pc = 0; 7255 STAILQ_FOREACH(port, &softc->port_list, links) { 7256 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 7257 continue; 7258 if (!softc->is_single && 7259 (port->status & CTL_PORT_STATUS_HA_SHARED) == 0) 7260 continue; 7261 if (ctl_lun_map_to_port(port, lun->lun) >= CTL_MAX_LUNS) 7262 continue; 7263 scsi_ulto2b(port->targ_port, tpg_desc->descriptors[pc]. 7264 relative_target_port_identifier); 7265 pc++; 7266 } 7267 tpg_desc->target_port_count = pc; 7268 tpg_desc = (struct scsi_target_port_group_descriptor *) 7269 &tpg_desc->descriptors[pc]; 7270 } 7271 for (g = 0; g < num_ha_groups; g++) { 7272 tpg_desc->pref_state = (g == pg) ? ts : os; 7273 tpg_desc->support = TPG_AO_SUP | TPG_AN_SUP | TPG_S_SUP | 7274 TPG_U_SUP | TPG_T_SUP; 7275 scsi_ulto2b(2 + g, tpg_desc->target_port_group); 7276 tpg_desc->status = TPG_IMPLICIT; 7277 pc = 0; 7278 STAILQ_FOREACH(port, &softc->port_list, links) { 7279 if (port->targ_port < g * softc->port_cnt || 7280 port->targ_port >= (g + 1) * softc->port_cnt) 7281 continue; 7282 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 7283 continue; 7284 if (port->status & CTL_PORT_STATUS_HA_SHARED) 7285 continue; 7286 if (ctl_lun_map_to_port(port, lun->lun) >= CTL_MAX_LUNS) 7287 continue; 7288 scsi_ulto2b(port->targ_port, tpg_desc->descriptors[pc]. 7289 relative_target_port_identifier); 7290 pc++; 7291 } 7292 tpg_desc->target_port_count = pc; 7293 tpg_desc = (struct scsi_target_port_group_descriptor *) 7294 &tpg_desc->descriptors[pc]; 7295 } 7296 mtx_unlock(&softc->ctl_lock); 7297 7298 ctl_set_success(ctsio); 7299 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7300 ctsio->be_move_done = ctl_config_move_done; 7301 ctl_datamove((union ctl_io *)ctsio); 7302 return(retval); 7303} 7304 7305int 7306ctl_report_supported_opcodes(struct ctl_scsiio *ctsio) 7307{ 7308 struct ctl_lun *lun; 7309 struct scsi_report_supported_opcodes *cdb; 7310 const struct ctl_cmd_entry *entry, *sentry; 7311 struct scsi_report_supported_opcodes_all *all; 7312 struct scsi_report_supported_opcodes_descr *descr; 7313 struct scsi_report_supported_opcodes_one *one; 7314 int retval; 7315 int alloc_len, total_len; 7316 int opcode, service_action, i, j, num; 7317 7318 CTL_DEBUG_PRINT(("ctl_report_supported_opcodes\n")); 7319 7320 cdb = (struct scsi_report_supported_opcodes *)ctsio->cdb; 7321 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7322 7323 retval = CTL_RETVAL_COMPLETE; 7324 7325 opcode = cdb->requested_opcode; 7326 service_action = scsi_2btoul(cdb->requested_service_action); 7327 switch (cdb->options & RSO_OPTIONS_MASK) { 7328 case RSO_OPTIONS_ALL: 7329 num = 0; 7330 for (i = 0; i < 256; i++) { 7331 entry = &ctl_cmd_table[i]; 7332 if (entry->flags & CTL_CMD_FLAG_SA5) { 7333 for (j = 0; j < 32; j++) { 7334 sentry = &((const struct ctl_cmd_entry *) 7335 entry->execute)[j]; 7336 if (ctl_cmd_applicable( 7337 lun->be_lun->lun_type, sentry)) 7338 num++; 7339 } 7340 } else { 7341 if (ctl_cmd_applicable(lun->be_lun->lun_type, 7342 entry)) 7343 num++; 7344 } 7345 } 7346 total_len = sizeof(struct scsi_report_supported_opcodes_all) + 7347 num * sizeof(struct scsi_report_supported_opcodes_descr); 7348 break; 7349 case RSO_OPTIONS_OC: 7350 if (ctl_cmd_table[opcode].flags & CTL_CMD_FLAG_SA5) { 7351 ctl_set_invalid_field(/*ctsio*/ ctsio, 7352 /*sks_valid*/ 1, 7353 /*command*/ 1, 7354 /*field*/ 2, 7355 /*bit_valid*/ 1, 7356 /*bit*/ 2); 7357 ctl_done((union ctl_io *)ctsio); 7358 return (CTL_RETVAL_COMPLETE); 7359 } 7360 total_len = sizeof(struct scsi_report_supported_opcodes_one) + 32; 7361 break; 7362 case RSO_OPTIONS_OC_SA: 7363 if ((ctl_cmd_table[opcode].flags & CTL_CMD_FLAG_SA5) == 0 || 7364 service_action >= 32) { 7365 ctl_set_invalid_field(/*ctsio*/ ctsio, 7366 /*sks_valid*/ 1, 7367 /*command*/ 1, 7368 /*field*/ 2, 7369 /*bit_valid*/ 1, 7370 /*bit*/ 2); 7371 ctl_done((union ctl_io *)ctsio); 7372 return (CTL_RETVAL_COMPLETE); 7373 } 7374 total_len = sizeof(struct scsi_report_supported_opcodes_one) + 32; 7375 break; 7376 default: 7377 ctl_set_invalid_field(/*ctsio*/ ctsio, 7378 /*sks_valid*/ 1, 7379 /*command*/ 1, 7380 /*field*/ 2, 7381 /*bit_valid*/ 1, 7382 /*bit*/ 2); 7383 ctl_done((union ctl_io *)ctsio); 7384 return (CTL_RETVAL_COMPLETE); 7385 } 7386 7387 alloc_len = scsi_4btoul(cdb->length); 7388 7389 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7390 7391 ctsio->kern_sg_entries = 0; 7392 7393 if (total_len < alloc_len) { 7394 ctsio->residual = alloc_len - total_len; 7395 ctsio->kern_data_len = total_len; 7396 ctsio->kern_total_len = total_len; 7397 } else { 7398 ctsio->residual = 0; 7399 ctsio->kern_data_len = alloc_len; 7400 ctsio->kern_total_len = alloc_len; 7401 } 7402 ctsio->kern_data_resid = 0; 7403 ctsio->kern_rel_offset = 0; 7404 7405 switch (cdb->options & RSO_OPTIONS_MASK) { 7406 case RSO_OPTIONS_ALL: 7407 all = (struct scsi_report_supported_opcodes_all *) 7408 ctsio->kern_data_ptr; 7409 num = 0; 7410 for (i = 0; i < 256; i++) { 7411 entry = &ctl_cmd_table[i]; 7412 if (entry->flags & CTL_CMD_FLAG_SA5) { 7413 for (j = 0; j < 32; j++) { 7414 sentry = &((const struct ctl_cmd_entry *) 7415 entry->execute)[j]; 7416 if (!ctl_cmd_applicable( 7417 lun->be_lun->lun_type, sentry)) 7418 continue; 7419 descr = &all->descr[num++]; 7420 descr->opcode = i; 7421 scsi_ulto2b(j, descr->service_action); 7422 descr->flags = RSO_SERVACTV; 7423 scsi_ulto2b(sentry->length, 7424 descr->cdb_length); 7425 } 7426 } else { 7427 if (!ctl_cmd_applicable(lun->be_lun->lun_type, 7428 entry)) 7429 continue; 7430 descr = &all->descr[num++]; 7431 descr->opcode = i; 7432 scsi_ulto2b(0, descr->service_action); 7433 descr->flags = 0; 7434 scsi_ulto2b(entry->length, descr->cdb_length); 7435 } 7436 } 7437 scsi_ulto4b( 7438 num * sizeof(struct scsi_report_supported_opcodes_descr), 7439 all->length); 7440 break; 7441 case RSO_OPTIONS_OC: 7442 one = (struct scsi_report_supported_opcodes_one *) 7443 ctsio->kern_data_ptr; 7444 entry = &ctl_cmd_table[opcode]; 7445 goto fill_one; 7446 case RSO_OPTIONS_OC_SA: 7447 one = (struct scsi_report_supported_opcodes_one *) 7448 ctsio->kern_data_ptr; 7449 entry = &ctl_cmd_table[opcode]; 7450 entry = &((const struct ctl_cmd_entry *) 7451 entry->execute)[service_action]; 7452fill_one: 7453 if (ctl_cmd_applicable(lun->be_lun->lun_type, entry)) { 7454 one->support = 3; 7455 scsi_ulto2b(entry->length, one->cdb_length); 7456 one->cdb_usage[0] = opcode; 7457 memcpy(&one->cdb_usage[1], entry->usage, 7458 entry->length - 1); 7459 } else 7460 one->support = 1; 7461 break; 7462 } 7463 7464 ctl_set_success(ctsio); 7465 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7466 ctsio->be_move_done = ctl_config_move_done; 7467 ctl_datamove((union ctl_io *)ctsio); 7468 return(retval); 7469} 7470 7471int 7472ctl_report_supported_tmf(struct ctl_scsiio *ctsio) 7473{ 7474 struct scsi_report_supported_tmf *cdb; 7475 struct scsi_report_supported_tmf_data *data; 7476 int retval; 7477 int alloc_len, total_len; 7478 7479 CTL_DEBUG_PRINT(("ctl_report_supported_tmf\n")); 7480 7481 cdb = (struct scsi_report_supported_tmf *)ctsio->cdb; 7482 7483 retval = CTL_RETVAL_COMPLETE; 7484 7485 total_len = sizeof(struct scsi_report_supported_tmf_data); 7486 alloc_len = scsi_4btoul(cdb->length); 7487 7488 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7489 7490 ctsio->kern_sg_entries = 0; 7491 7492 if (total_len < alloc_len) { 7493 ctsio->residual = alloc_len - total_len; 7494 ctsio->kern_data_len = total_len; 7495 ctsio->kern_total_len = total_len; 7496 } else { 7497 ctsio->residual = 0; 7498 ctsio->kern_data_len = alloc_len; 7499 ctsio->kern_total_len = alloc_len; 7500 } 7501 ctsio->kern_data_resid = 0; 7502 ctsio->kern_rel_offset = 0; 7503 7504 data = (struct scsi_report_supported_tmf_data *)ctsio->kern_data_ptr; 7505 data->byte1 |= RST_ATS | RST_ATSS | RST_CTSS | RST_LURS | RST_QTS | 7506 RST_TRS; 7507 data->byte2 |= RST_QAES | RST_QTSS | RST_ITNRS; 7508 7509 ctl_set_success(ctsio); 7510 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7511 ctsio->be_move_done = ctl_config_move_done; 7512 ctl_datamove((union ctl_io *)ctsio); 7513 return (retval); 7514} 7515 7516int 7517ctl_report_timestamp(struct ctl_scsiio *ctsio) 7518{ 7519 struct scsi_report_timestamp *cdb; 7520 struct scsi_report_timestamp_data *data; 7521 struct timeval tv; 7522 int64_t timestamp; 7523 int retval; 7524 int alloc_len, total_len; 7525 7526 CTL_DEBUG_PRINT(("ctl_report_timestamp\n")); 7527 7528 cdb = (struct scsi_report_timestamp *)ctsio->cdb; 7529 7530 retval = CTL_RETVAL_COMPLETE; 7531 7532 total_len = sizeof(struct scsi_report_timestamp_data); 7533 alloc_len = scsi_4btoul(cdb->length); 7534 7535 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7536 7537 ctsio->kern_sg_entries = 0; 7538 7539 if (total_len < alloc_len) { 7540 ctsio->residual = alloc_len - total_len; 7541 ctsio->kern_data_len = total_len; 7542 ctsio->kern_total_len = total_len; 7543 } else { 7544 ctsio->residual = 0; 7545 ctsio->kern_data_len = alloc_len; 7546 ctsio->kern_total_len = alloc_len; 7547 } 7548 ctsio->kern_data_resid = 0; 7549 ctsio->kern_rel_offset = 0; 7550 7551 data = (struct scsi_report_timestamp_data *)ctsio->kern_data_ptr; 7552 scsi_ulto2b(sizeof(*data) - 2, data->length); 7553 data->origin = RTS_ORIG_OUTSIDE; 7554 getmicrotime(&tv); 7555 timestamp = (int64_t)tv.tv_sec * 1000 + tv.tv_usec / 1000; 7556 scsi_ulto4b(timestamp >> 16, data->timestamp); 7557 scsi_ulto2b(timestamp & 0xffff, &data->timestamp[4]); 7558 7559 ctl_set_success(ctsio); 7560 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7561 ctsio->be_move_done = ctl_config_move_done; 7562 ctl_datamove((union ctl_io *)ctsio); 7563 return (retval); 7564} 7565 7566int 7567ctl_persistent_reserve_in(struct ctl_scsiio *ctsio) 7568{ 7569 struct scsi_per_res_in *cdb; 7570 int alloc_len, total_len = 0; 7571 /* struct scsi_per_res_in_rsrv in_data; */ 7572 struct ctl_lun *lun; 7573 struct ctl_softc *softc; 7574 uint64_t key; 7575 7576 CTL_DEBUG_PRINT(("ctl_persistent_reserve_in\n")); 7577 7578 cdb = (struct scsi_per_res_in *)ctsio->cdb; 7579 7580 alloc_len = scsi_2btoul(cdb->length); 7581 7582 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7583 softc = lun->ctl_softc; 7584 7585retry: 7586 mtx_lock(&lun->lun_lock); 7587 switch (cdb->action) { 7588 case SPRI_RK: /* read keys */ 7589 total_len = sizeof(struct scsi_per_res_in_keys) + 7590 lun->pr_key_count * 7591 sizeof(struct scsi_per_res_key); 7592 break; 7593 case SPRI_RR: /* read reservation */ 7594 if (lun->flags & CTL_LUN_PR_RESERVED) 7595 total_len = sizeof(struct scsi_per_res_in_rsrv); 7596 else 7597 total_len = sizeof(struct scsi_per_res_in_header); 7598 break; 7599 case SPRI_RC: /* report capabilities */ 7600 total_len = sizeof(struct scsi_per_res_cap); 7601 break; 7602 case SPRI_RS: /* read full status */ 7603 total_len = sizeof(struct scsi_per_res_in_header) + 7604 (sizeof(struct scsi_per_res_in_full_desc) + 256) * 7605 lun->pr_key_count; 7606 break; 7607 default: 7608 panic("%s: Invalid PR type %#x", __func__, cdb->action); 7609 } 7610 mtx_unlock(&lun->lun_lock); 7611 7612 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7613 7614 if (total_len < alloc_len) { 7615 ctsio->residual = alloc_len - total_len; 7616 ctsio->kern_data_len = total_len; 7617 ctsio->kern_total_len = total_len; 7618 } else { 7619 ctsio->residual = 0; 7620 ctsio->kern_data_len = alloc_len; 7621 ctsio->kern_total_len = alloc_len; 7622 } 7623 7624 ctsio->kern_data_resid = 0; 7625 ctsio->kern_rel_offset = 0; 7626 ctsio->kern_sg_entries = 0; 7627 7628 mtx_lock(&lun->lun_lock); 7629 switch (cdb->action) { 7630 case SPRI_RK: { // read keys 7631 struct scsi_per_res_in_keys *res_keys; 7632 int i, key_count; 7633 7634 res_keys = (struct scsi_per_res_in_keys*)ctsio->kern_data_ptr; 7635 7636 /* 7637 * We had to drop the lock to allocate our buffer, which 7638 * leaves time for someone to come in with another 7639 * persistent reservation. (That is unlikely, though, 7640 * since this should be the only persistent reservation 7641 * command active right now.) 7642 */ 7643 if (total_len != (sizeof(struct scsi_per_res_in_keys) + 7644 (lun->pr_key_count * 7645 sizeof(struct scsi_per_res_key)))){ 7646 mtx_unlock(&lun->lun_lock); 7647 free(ctsio->kern_data_ptr, M_CTL); 7648 printf("%s: reservation length changed, retrying\n", 7649 __func__); 7650 goto retry; 7651 } 7652 7653 scsi_ulto4b(lun->pr_generation, res_keys->header.generation); 7654 7655 scsi_ulto4b(sizeof(struct scsi_per_res_key) * 7656 lun->pr_key_count, res_keys->header.length); 7657 7658 for (i = 0, key_count = 0; i < CTL_MAX_INITIATORS; i++) { 7659 if ((key = ctl_get_prkey(lun, i)) == 0) 7660 continue; 7661 7662 /* 7663 * We used lun->pr_key_count to calculate the 7664 * size to allocate. If it turns out the number of 7665 * initiators with the registered flag set is 7666 * larger than that (i.e. they haven't been kept in 7667 * sync), we've got a problem. 7668 */ 7669 if (key_count >= lun->pr_key_count) { 7670 key_count++; 7671 continue; 7672 } 7673 scsi_u64to8b(key, res_keys->keys[key_count].key); 7674 key_count++; 7675 } 7676 break; 7677 } 7678 case SPRI_RR: { // read reservation 7679 struct scsi_per_res_in_rsrv *res; 7680 int tmp_len, header_only; 7681 7682 res = (struct scsi_per_res_in_rsrv *)ctsio->kern_data_ptr; 7683 7684 scsi_ulto4b(lun->pr_generation, res->header.generation); 7685 7686 if (lun->flags & CTL_LUN_PR_RESERVED) 7687 { 7688 tmp_len = sizeof(struct scsi_per_res_in_rsrv); 7689 scsi_ulto4b(sizeof(struct scsi_per_res_in_rsrv_data), 7690 res->header.length); 7691 header_only = 0; 7692 } else { 7693 tmp_len = sizeof(struct scsi_per_res_in_header); 7694 scsi_ulto4b(0, res->header.length); 7695 header_only = 1; 7696 } 7697 7698 /* 7699 * We had to drop the lock to allocate our buffer, which 7700 * leaves time for someone to come in with another 7701 * persistent reservation. (That is unlikely, though, 7702 * since this should be the only persistent reservation 7703 * command active right now.) 7704 */ 7705 if (tmp_len != total_len) { 7706 mtx_unlock(&lun->lun_lock); 7707 free(ctsio->kern_data_ptr, M_CTL); 7708 printf("%s: reservation status changed, retrying\n", 7709 __func__); 7710 goto retry; 7711 } 7712 7713 /* 7714 * No reservation held, so we're done. 7715 */ 7716 if (header_only != 0) 7717 break; 7718 7719 /* 7720 * If the registration is an All Registrants type, the key 7721 * is 0, since it doesn't really matter. 7722 */ 7723 if (lun->pr_res_idx != CTL_PR_ALL_REGISTRANTS) { 7724 scsi_u64to8b(ctl_get_prkey(lun, lun->pr_res_idx), 7725 res->data.reservation); 7726 } 7727 res->data.scopetype = lun->pr_res_type; 7728 break; 7729 } 7730 case SPRI_RC: //report capabilities 7731 { 7732 struct scsi_per_res_cap *res_cap; 7733 uint16_t type_mask; 7734 7735 res_cap = (struct scsi_per_res_cap *)ctsio->kern_data_ptr; 7736 scsi_ulto2b(sizeof(*res_cap), res_cap->length); 7737 res_cap->flags1 = SPRI_CRH; 7738 res_cap->flags2 = SPRI_TMV | SPRI_ALLOW_5; 7739 type_mask = SPRI_TM_WR_EX_AR | 7740 SPRI_TM_EX_AC_RO | 7741 SPRI_TM_WR_EX_RO | 7742 SPRI_TM_EX_AC | 7743 SPRI_TM_WR_EX | 7744 SPRI_TM_EX_AC_AR; 7745 scsi_ulto2b(type_mask, res_cap->type_mask); 7746 break; 7747 } 7748 case SPRI_RS: { // read full status 7749 struct scsi_per_res_in_full *res_status; 7750 struct scsi_per_res_in_full_desc *res_desc; 7751 struct ctl_port *port; 7752 int i, len; 7753 7754 res_status = (struct scsi_per_res_in_full*)ctsio->kern_data_ptr; 7755 7756 /* 7757 * We had to drop the lock to allocate our buffer, which 7758 * leaves time for someone to come in with another 7759 * persistent reservation. (That is unlikely, though, 7760 * since this should be the only persistent reservation 7761 * command active right now.) 7762 */ 7763 if (total_len < (sizeof(struct scsi_per_res_in_header) + 7764 (sizeof(struct scsi_per_res_in_full_desc) + 256) * 7765 lun->pr_key_count)){ 7766 mtx_unlock(&lun->lun_lock); 7767 free(ctsio->kern_data_ptr, M_CTL); 7768 printf("%s: reservation length changed, retrying\n", 7769 __func__); 7770 goto retry; 7771 } 7772 7773 scsi_ulto4b(lun->pr_generation, res_status->header.generation); 7774 7775 res_desc = &res_status->desc[0]; 7776 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 7777 if ((key = ctl_get_prkey(lun, i)) == 0) 7778 continue; 7779 7780 scsi_u64to8b(key, res_desc->res_key.key); 7781 if ((lun->flags & CTL_LUN_PR_RESERVED) && 7782 (lun->pr_res_idx == i || 7783 lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS)) { 7784 res_desc->flags = SPRI_FULL_R_HOLDER; 7785 res_desc->scopetype = lun->pr_res_type; 7786 } 7787 scsi_ulto2b(i / CTL_MAX_INIT_PER_PORT, 7788 res_desc->rel_trgt_port_id); 7789 len = 0; 7790 port = softc->ctl_ports[i / CTL_MAX_INIT_PER_PORT]; 7791 if (port != NULL) 7792 len = ctl_create_iid(port, 7793 i % CTL_MAX_INIT_PER_PORT, 7794 res_desc->transport_id); 7795 scsi_ulto4b(len, res_desc->additional_length); 7796 res_desc = (struct scsi_per_res_in_full_desc *) 7797 &res_desc->transport_id[len]; 7798 } 7799 scsi_ulto4b((uint8_t *)res_desc - (uint8_t *)&res_status->desc[0], 7800 res_status->header.length); 7801 break; 7802 } 7803 default: 7804 panic("%s: Invalid PR type %#x", __func__, cdb->action); 7805 } 7806 mtx_unlock(&lun->lun_lock); 7807 7808 ctl_set_success(ctsio); 7809 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7810 ctsio->be_move_done = ctl_config_move_done; 7811 ctl_datamove((union ctl_io *)ctsio); 7812 return (CTL_RETVAL_COMPLETE); 7813} 7814 7815/* 7816 * Returns 0 if ctl_persistent_reserve_out() should continue, non-zero if 7817 * it should return. 7818 */ 7819static int 7820ctl_pro_preempt(struct ctl_softc *softc, struct ctl_lun *lun, uint64_t res_key, 7821 uint64_t sa_res_key, uint8_t type, uint32_t residx, 7822 struct ctl_scsiio *ctsio, struct scsi_per_res_out *cdb, 7823 struct scsi_per_res_out_parms* param) 7824{ 7825 union ctl_ha_msg persis_io; 7826 int i; 7827 7828 mtx_lock(&lun->lun_lock); 7829 if (sa_res_key == 0) { 7830 if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS) { 7831 /* validate scope and type */ 7832 if ((cdb->scope_type & SPR_SCOPE_MASK) != 7833 SPR_LU_SCOPE) { 7834 mtx_unlock(&lun->lun_lock); 7835 ctl_set_invalid_field(/*ctsio*/ ctsio, 7836 /*sks_valid*/ 1, 7837 /*command*/ 1, 7838 /*field*/ 2, 7839 /*bit_valid*/ 1, 7840 /*bit*/ 4); 7841 ctl_done((union ctl_io *)ctsio); 7842 return (1); 7843 } 7844 7845 if (type>8 || type==2 || type==4 || type==0) { 7846 mtx_unlock(&lun->lun_lock); 7847 ctl_set_invalid_field(/*ctsio*/ ctsio, 7848 /*sks_valid*/ 1, 7849 /*command*/ 1, 7850 /*field*/ 2, 7851 /*bit_valid*/ 1, 7852 /*bit*/ 0); 7853 ctl_done((union ctl_io *)ctsio); 7854 return (1); 7855 } 7856 7857 /* 7858 * Unregister everybody else and build UA for 7859 * them 7860 */ 7861 for(i = 0; i < CTL_MAX_INITIATORS; i++) { 7862 if (i == residx || ctl_get_prkey(lun, i) == 0) 7863 continue; 7864 7865 ctl_clr_prkey(lun, i); 7866 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 7867 } 7868 lun->pr_key_count = 1; 7869 lun->pr_res_type = type; 7870 if (lun->pr_res_type != SPR_TYPE_WR_EX_AR && 7871 lun->pr_res_type != SPR_TYPE_EX_AC_AR) 7872 lun->pr_res_idx = residx; 7873 lun->pr_generation++; 7874 mtx_unlock(&lun->lun_lock); 7875 7876 /* send msg to other side */ 7877 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 7878 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 7879 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 7880 persis_io.pr.pr_info.residx = lun->pr_res_idx; 7881 persis_io.pr.pr_info.res_type = type; 7882 memcpy(persis_io.pr.pr_info.sa_res_key, 7883 param->serv_act_res_key, 7884 sizeof(param->serv_act_res_key)); 7885 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 7886 sizeof(persis_io.pr), M_WAITOK); 7887 } else { 7888 /* not all registrants */ 7889 mtx_unlock(&lun->lun_lock); 7890 free(ctsio->kern_data_ptr, M_CTL); 7891 ctl_set_invalid_field(ctsio, 7892 /*sks_valid*/ 1, 7893 /*command*/ 0, 7894 /*field*/ 8, 7895 /*bit_valid*/ 0, 7896 /*bit*/ 0); 7897 ctl_done((union ctl_io *)ctsio); 7898 return (1); 7899 } 7900 } else if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS 7901 || !(lun->flags & CTL_LUN_PR_RESERVED)) { 7902 int found = 0; 7903 7904 if (res_key == sa_res_key) { 7905 /* special case */ 7906 /* 7907 * The spec implies this is not good but doesn't 7908 * say what to do. There are two choices either 7909 * generate a res conflict or check condition 7910 * with illegal field in parameter data. Since 7911 * that is what is done when the sa_res_key is 7912 * zero I'll take that approach since this has 7913 * to do with the sa_res_key. 7914 */ 7915 mtx_unlock(&lun->lun_lock); 7916 free(ctsio->kern_data_ptr, M_CTL); 7917 ctl_set_invalid_field(ctsio, 7918 /*sks_valid*/ 1, 7919 /*command*/ 0, 7920 /*field*/ 8, 7921 /*bit_valid*/ 0, 7922 /*bit*/ 0); 7923 ctl_done((union ctl_io *)ctsio); 7924 return (1); 7925 } 7926 7927 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 7928 if (ctl_get_prkey(lun, i) != sa_res_key) 7929 continue; 7930 7931 found = 1; 7932 ctl_clr_prkey(lun, i); 7933 lun->pr_key_count--; 7934 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 7935 } 7936 if (!found) { 7937 mtx_unlock(&lun->lun_lock); 7938 free(ctsio->kern_data_ptr, M_CTL); 7939 ctl_set_reservation_conflict(ctsio); 7940 ctl_done((union ctl_io *)ctsio); 7941 return (CTL_RETVAL_COMPLETE); 7942 } 7943 lun->pr_generation++; 7944 mtx_unlock(&lun->lun_lock); 7945 7946 /* send msg to other side */ 7947 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 7948 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 7949 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 7950 persis_io.pr.pr_info.residx = lun->pr_res_idx; 7951 persis_io.pr.pr_info.res_type = type; 7952 memcpy(persis_io.pr.pr_info.sa_res_key, 7953 param->serv_act_res_key, 7954 sizeof(param->serv_act_res_key)); 7955 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 7956 sizeof(persis_io.pr), M_WAITOK); 7957 } else { 7958 /* Reserved but not all registrants */ 7959 /* sa_res_key is res holder */ 7960 if (sa_res_key == ctl_get_prkey(lun, lun->pr_res_idx)) { 7961 /* validate scope and type */ 7962 if ((cdb->scope_type & SPR_SCOPE_MASK) != 7963 SPR_LU_SCOPE) { 7964 mtx_unlock(&lun->lun_lock); 7965 ctl_set_invalid_field(/*ctsio*/ ctsio, 7966 /*sks_valid*/ 1, 7967 /*command*/ 1, 7968 /*field*/ 2, 7969 /*bit_valid*/ 1, 7970 /*bit*/ 4); 7971 ctl_done((union ctl_io *)ctsio); 7972 return (1); 7973 } 7974 7975 if (type>8 || type==2 || type==4 || type==0) { 7976 mtx_unlock(&lun->lun_lock); 7977 ctl_set_invalid_field(/*ctsio*/ ctsio, 7978 /*sks_valid*/ 1, 7979 /*command*/ 1, 7980 /*field*/ 2, 7981 /*bit_valid*/ 1, 7982 /*bit*/ 0); 7983 ctl_done((union ctl_io *)ctsio); 7984 return (1); 7985 } 7986 7987 /* 7988 * Do the following: 7989 * if sa_res_key != res_key remove all 7990 * registrants w/sa_res_key and generate UA 7991 * for these registrants(Registrations 7992 * Preempted) if it wasn't an exclusive 7993 * reservation generate UA(Reservations 7994 * Preempted) for all other registered nexuses 7995 * if the type has changed. Establish the new 7996 * reservation and holder. If res_key and 7997 * sa_res_key are the same do the above 7998 * except don't unregister the res holder. 7999 */ 8000 8001 for(i = 0; i < CTL_MAX_INITIATORS; i++) { 8002 if (i == residx || ctl_get_prkey(lun, i) == 0) 8003 continue; 8004 8005 if (sa_res_key == ctl_get_prkey(lun, i)) { 8006 ctl_clr_prkey(lun, i); 8007 lun->pr_key_count--; 8008 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 8009 } else if (type != lun->pr_res_type && 8010 (lun->pr_res_type == SPR_TYPE_WR_EX_RO || 8011 lun->pr_res_type == SPR_TYPE_EX_AC_RO)) { 8012 ctl_est_ua(lun, i, CTL_UA_RES_RELEASE); 8013 } 8014 } 8015 lun->pr_res_type = type; 8016 if (lun->pr_res_type != SPR_TYPE_WR_EX_AR && 8017 lun->pr_res_type != SPR_TYPE_EX_AC_AR) 8018 lun->pr_res_idx = residx; 8019 else 8020 lun->pr_res_idx = CTL_PR_ALL_REGISTRANTS; 8021 lun->pr_generation++; 8022 mtx_unlock(&lun->lun_lock); 8023 8024 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8025 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8026 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 8027 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8028 persis_io.pr.pr_info.res_type = type; 8029 memcpy(persis_io.pr.pr_info.sa_res_key, 8030 param->serv_act_res_key, 8031 sizeof(param->serv_act_res_key)); 8032 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8033 sizeof(persis_io.pr), M_WAITOK); 8034 } else { 8035 /* 8036 * sa_res_key is not the res holder just 8037 * remove registrants 8038 */ 8039 int found=0; 8040 8041 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 8042 if (sa_res_key != ctl_get_prkey(lun, i)) 8043 continue; 8044 8045 found = 1; 8046 ctl_clr_prkey(lun, i); 8047 lun->pr_key_count--; 8048 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 8049 } 8050 8051 if (!found) { 8052 mtx_unlock(&lun->lun_lock); 8053 free(ctsio->kern_data_ptr, M_CTL); 8054 ctl_set_reservation_conflict(ctsio); 8055 ctl_done((union ctl_io *)ctsio); 8056 return (1); 8057 } 8058 lun->pr_generation++; 8059 mtx_unlock(&lun->lun_lock); 8060 8061 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8062 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8063 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 8064 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8065 persis_io.pr.pr_info.res_type = type; 8066 memcpy(persis_io.pr.pr_info.sa_res_key, 8067 param->serv_act_res_key, 8068 sizeof(param->serv_act_res_key)); 8069 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8070 sizeof(persis_io.pr), M_WAITOK); 8071 } 8072 } 8073 return (0); 8074} 8075 8076static void 8077ctl_pro_preempt_other(struct ctl_lun *lun, union ctl_ha_msg *msg) 8078{ 8079 uint64_t sa_res_key; 8080 int i; 8081 8082 sa_res_key = scsi_8btou64(msg->pr.pr_info.sa_res_key); 8083 8084 if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS 8085 || lun->pr_res_idx == CTL_PR_NO_RESERVATION 8086 || sa_res_key != ctl_get_prkey(lun, lun->pr_res_idx)) { 8087 if (sa_res_key == 0) { 8088 /* 8089 * Unregister everybody else and build UA for 8090 * them 8091 */ 8092 for(i = 0; i < CTL_MAX_INITIATORS; i++) { 8093 if (i == msg->pr.pr_info.residx || 8094 ctl_get_prkey(lun, i) == 0) 8095 continue; 8096 8097 ctl_clr_prkey(lun, i); 8098 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 8099 } 8100 8101 lun->pr_key_count = 1; 8102 lun->pr_res_type = msg->pr.pr_info.res_type; 8103 if (lun->pr_res_type != SPR_TYPE_WR_EX_AR && 8104 lun->pr_res_type != SPR_TYPE_EX_AC_AR) 8105 lun->pr_res_idx = msg->pr.pr_info.residx; 8106 } else { 8107 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 8108 if (sa_res_key == ctl_get_prkey(lun, i)) 8109 continue; 8110 8111 ctl_clr_prkey(lun, i); 8112 lun->pr_key_count--; 8113 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 8114 } 8115 } 8116 } else { 8117 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 8118 if (i == msg->pr.pr_info.residx || 8119 ctl_get_prkey(lun, i) == 0) 8120 continue; 8121 8122 if (sa_res_key == ctl_get_prkey(lun, i)) { 8123 ctl_clr_prkey(lun, i); 8124 lun->pr_key_count--; 8125 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 8126 } else if (msg->pr.pr_info.res_type != lun->pr_res_type 8127 && (lun->pr_res_type == SPR_TYPE_WR_EX_RO || 8128 lun->pr_res_type == SPR_TYPE_EX_AC_RO)) { 8129 ctl_est_ua(lun, i, CTL_UA_RES_RELEASE); 8130 } 8131 } 8132 lun->pr_res_type = msg->pr.pr_info.res_type; 8133 if (lun->pr_res_type != SPR_TYPE_WR_EX_AR && 8134 lun->pr_res_type != SPR_TYPE_EX_AC_AR) 8135 lun->pr_res_idx = msg->pr.pr_info.residx; 8136 else 8137 lun->pr_res_idx = CTL_PR_ALL_REGISTRANTS; 8138 } 8139 lun->pr_generation++; 8140 8141} 8142 8143 8144int 8145ctl_persistent_reserve_out(struct ctl_scsiio *ctsio) 8146{ 8147 int retval; 8148 u_int32_t param_len; 8149 struct scsi_per_res_out *cdb; 8150 struct ctl_lun *lun; 8151 struct scsi_per_res_out_parms* param; 8152 struct ctl_softc *softc; 8153 uint32_t residx; 8154 uint64_t res_key, sa_res_key, key; 8155 uint8_t type; 8156 union ctl_ha_msg persis_io; 8157 int i; 8158 8159 CTL_DEBUG_PRINT(("ctl_persistent_reserve_out\n")); 8160 8161 retval = CTL_RETVAL_COMPLETE; 8162 8163 cdb = (struct scsi_per_res_out *)ctsio->cdb; 8164 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 8165 softc = lun->ctl_softc; 8166 8167 /* 8168 * We only support whole-LUN scope. The scope & type are ignored for 8169 * register, register and ignore existing key and clear. 8170 * We sometimes ignore scope and type on preempts too!! 8171 * Verify reservation type here as well. 8172 */ 8173 type = cdb->scope_type & SPR_TYPE_MASK; 8174 if ((cdb->action == SPRO_RESERVE) 8175 || (cdb->action == SPRO_RELEASE)) { 8176 if ((cdb->scope_type & SPR_SCOPE_MASK) != SPR_LU_SCOPE) { 8177 ctl_set_invalid_field(/*ctsio*/ ctsio, 8178 /*sks_valid*/ 1, 8179 /*command*/ 1, 8180 /*field*/ 2, 8181 /*bit_valid*/ 1, 8182 /*bit*/ 4); 8183 ctl_done((union ctl_io *)ctsio); 8184 return (CTL_RETVAL_COMPLETE); 8185 } 8186 8187 if (type>8 || type==2 || type==4 || type==0) { 8188 ctl_set_invalid_field(/*ctsio*/ ctsio, 8189 /*sks_valid*/ 1, 8190 /*command*/ 1, 8191 /*field*/ 2, 8192 /*bit_valid*/ 1, 8193 /*bit*/ 0); 8194 ctl_done((union ctl_io *)ctsio); 8195 return (CTL_RETVAL_COMPLETE); 8196 } 8197 } 8198 8199 param_len = scsi_4btoul(cdb->length); 8200 8201 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 8202 ctsio->kern_data_ptr = malloc(param_len, M_CTL, M_WAITOK); 8203 ctsio->kern_data_len = param_len; 8204 ctsio->kern_total_len = param_len; 8205 ctsio->kern_data_resid = 0; 8206 ctsio->kern_rel_offset = 0; 8207 ctsio->kern_sg_entries = 0; 8208 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 8209 ctsio->be_move_done = ctl_config_move_done; 8210 ctl_datamove((union ctl_io *)ctsio); 8211 8212 return (CTL_RETVAL_COMPLETE); 8213 } 8214 8215 param = (struct scsi_per_res_out_parms *)ctsio->kern_data_ptr; 8216 8217 residx = ctl_get_initindex(&ctsio->io_hdr.nexus); 8218 res_key = scsi_8btou64(param->res_key.key); 8219 sa_res_key = scsi_8btou64(param->serv_act_res_key); 8220 8221 /* 8222 * Validate the reservation key here except for SPRO_REG_IGNO 8223 * This must be done for all other service actions 8224 */ 8225 if ((cdb->action & SPRO_ACTION_MASK) != SPRO_REG_IGNO) { 8226 mtx_lock(&lun->lun_lock); 8227 if ((key = ctl_get_prkey(lun, residx)) != 0) { 8228 if (res_key != key) { 8229 /* 8230 * The current key passed in doesn't match 8231 * the one the initiator previously 8232 * registered. 8233 */ 8234 mtx_unlock(&lun->lun_lock); 8235 free(ctsio->kern_data_ptr, M_CTL); 8236 ctl_set_reservation_conflict(ctsio); 8237 ctl_done((union ctl_io *)ctsio); 8238 return (CTL_RETVAL_COMPLETE); 8239 } 8240 } else if ((cdb->action & SPRO_ACTION_MASK) != SPRO_REGISTER) { 8241 /* 8242 * We are not registered 8243 */ 8244 mtx_unlock(&lun->lun_lock); 8245 free(ctsio->kern_data_ptr, M_CTL); 8246 ctl_set_reservation_conflict(ctsio); 8247 ctl_done((union ctl_io *)ctsio); 8248 return (CTL_RETVAL_COMPLETE); 8249 } else if (res_key != 0) { 8250 /* 8251 * We are not registered and trying to register but 8252 * the register key isn't zero. 8253 */ 8254 mtx_unlock(&lun->lun_lock); 8255 free(ctsio->kern_data_ptr, M_CTL); 8256 ctl_set_reservation_conflict(ctsio); 8257 ctl_done((union ctl_io *)ctsio); 8258 return (CTL_RETVAL_COMPLETE); 8259 } 8260 mtx_unlock(&lun->lun_lock); 8261 } 8262 8263 switch (cdb->action & SPRO_ACTION_MASK) { 8264 case SPRO_REGISTER: 8265 case SPRO_REG_IGNO: { 8266 8267#if 0 8268 printf("Registration received\n"); 8269#endif 8270 8271 /* 8272 * We don't support any of these options, as we report in 8273 * the read capabilities request (see 8274 * ctl_persistent_reserve_in(), above). 8275 */ 8276 if ((param->flags & SPR_SPEC_I_PT) 8277 || (param->flags & SPR_ALL_TG_PT) 8278 || (param->flags & SPR_APTPL)) { 8279 int bit_ptr; 8280 8281 if (param->flags & SPR_APTPL) 8282 bit_ptr = 0; 8283 else if (param->flags & SPR_ALL_TG_PT) 8284 bit_ptr = 2; 8285 else /* SPR_SPEC_I_PT */ 8286 bit_ptr = 3; 8287 8288 free(ctsio->kern_data_ptr, M_CTL); 8289 ctl_set_invalid_field(ctsio, 8290 /*sks_valid*/ 1, 8291 /*command*/ 0, 8292 /*field*/ 20, 8293 /*bit_valid*/ 1, 8294 /*bit*/ bit_ptr); 8295 ctl_done((union ctl_io *)ctsio); 8296 return (CTL_RETVAL_COMPLETE); 8297 } 8298 8299 mtx_lock(&lun->lun_lock); 8300 8301 /* 8302 * The initiator wants to clear the 8303 * key/unregister. 8304 */ 8305 if (sa_res_key == 0) { 8306 if ((res_key == 0 8307 && (cdb->action & SPRO_ACTION_MASK) == SPRO_REGISTER) 8308 || ((cdb->action & SPRO_ACTION_MASK) == SPRO_REG_IGNO 8309 && ctl_get_prkey(lun, residx) == 0)) { 8310 mtx_unlock(&lun->lun_lock); 8311 goto done; 8312 } 8313 8314 ctl_clr_prkey(lun, residx); 8315 lun->pr_key_count--; 8316 8317 if (residx == lun->pr_res_idx) { 8318 lun->flags &= ~CTL_LUN_PR_RESERVED; 8319 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8320 8321 if ((lun->pr_res_type == SPR_TYPE_WR_EX_RO || 8322 lun->pr_res_type == SPR_TYPE_EX_AC_RO) && 8323 lun->pr_key_count) { 8324 /* 8325 * If the reservation is a registrants 8326 * only type we need to generate a UA 8327 * for other registered inits. The 8328 * sense code should be RESERVATIONS 8329 * RELEASED 8330 */ 8331 8332 for (i = softc->init_min; i < softc->init_max; i++){ 8333 if (ctl_get_prkey(lun, i) == 0) 8334 continue; 8335 ctl_est_ua(lun, i, 8336 CTL_UA_RES_RELEASE); 8337 } 8338 } 8339 lun->pr_res_type = 0; 8340 } else if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS) { 8341 if (lun->pr_key_count==0) { 8342 lun->flags &= ~CTL_LUN_PR_RESERVED; 8343 lun->pr_res_type = 0; 8344 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8345 } 8346 } 8347 lun->pr_generation++; 8348 mtx_unlock(&lun->lun_lock); 8349 8350 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8351 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8352 persis_io.pr.pr_info.action = CTL_PR_UNREG_KEY; 8353 persis_io.pr.pr_info.residx = residx; 8354 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8355 sizeof(persis_io.pr), M_WAITOK); 8356 } else /* sa_res_key != 0 */ { 8357 8358 /* 8359 * If we aren't registered currently then increment 8360 * the key count and set the registered flag. 8361 */ 8362 ctl_alloc_prkey(lun, residx); 8363 if (ctl_get_prkey(lun, residx) == 0) 8364 lun->pr_key_count++; 8365 ctl_set_prkey(lun, residx, sa_res_key); 8366 lun->pr_generation++; 8367 mtx_unlock(&lun->lun_lock); 8368 8369 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8370 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8371 persis_io.pr.pr_info.action = CTL_PR_REG_KEY; 8372 persis_io.pr.pr_info.residx = residx; 8373 memcpy(persis_io.pr.pr_info.sa_res_key, 8374 param->serv_act_res_key, 8375 sizeof(param->serv_act_res_key)); 8376 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8377 sizeof(persis_io.pr), M_WAITOK); 8378 } 8379 8380 break; 8381 } 8382 case SPRO_RESERVE: 8383#if 0 8384 printf("Reserve executed type %d\n", type); 8385#endif 8386 mtx_lock(&lun->lun_lock); 8387 if (lun->flags & CTL_LUN_PR_RESERVED) { 8388 /* 8389 * if this isn't the reservation holder and it's 8390 * not a "all registrants" type or if the type is 8391 * different then we have a conflict 8392 */ 8393 if ((lun->pr_res_idx != residx 8394 && lun->pr_res_idx != CTL_PR_ALL_REGISTRANTS) 8395 || lun->pr_res_type != type) { 8396 mtx_unlock(&lun->lun_lock); 8397 free(ctsio->kern_data_ptr, M_CTL); 8398 ctl_set_reservation_conflict(ctsio); 8399 ctl_done((union ctl_io *)ctsio); 8400 return (CTL_RETVAL_COMPLETE); 8401 } 8402 mtx_unlock(&lun->lun_lock); 8403 } else /* create a reservation */ { 8404 /* 8405 * If it's not an "all registrants" type record 8406 * reservation holder 8407 */ 8408 if (type != SPR_TYPE_WR_EX_AR 8409 && type != SPR_TYPE_EX_AC_AR) 8410 lun->pr_res_idx = residx; /* Res holder */ 8411 else 8412 lun->pr_res_idx = CTL_PR_ALL_REGISTRANTS; 8413 8414 lun->flags |= CTL_LUN_PR_RESERVED; 8415 lun->pr_res_type = type; 8416 8417 mtx_unlock(&lun->lun_lock); 8418 8419 /* send msg to other side */ 8420 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8421 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8422 persis_io.pr.pr_info.action = CTL_PR_RESERVE; 8423 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8424 persis_io.pr.pr_info.res_type = type; 8425 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8426 sizeof(persis_io.pr), M_WAITOK); 8427 } 8428 break; 8429 8430 case SPRO_RELEASE: 8431 mtx_lock(&lun->lun_lock); 8432 if ((lun->flags & CTL_LUN_PR_RESERVED) == 0) { 8433 /* No reservation exists return good status */ 8434 mtx_unlock(&lun->lun_lock); 8435 goto done; 8436 } 8437 /* 8438 * Is this nexus a reservation holder? 8439 */ 8440 if (lun->pr_res_idx != residx 8441 && lun->pr_res_idx != CTL_PR_ALL_REGISTRANTS) { 8442 /* 8443 * not a res holder return good status but 8444 * do nothing 8445 */ 8446 mtx_unlock(&lun->lun_lock); 8447 goto done; 8448 } 8449 8450 if (lun->pr_res_type != type) { 8451 mtx_unlock(&lun->lun_lock); 8452 free(ctsio->kern_data_ptr, M_CTL); 8453 ctl_set_illegal_pr_release(ctsio); 8454 ctl_done((union ctl_io *)ctsio); 8455 return (CTL_RETVAL_COMPLETE); 8456 } 8457 8458 /* okay to release */ 8459 lun->flags &= ~CTL_LUN_PR_RESERVED; 8460 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8461 lun->pr_res_type = 0; 8462 8463 /* 8464 * If this isn't an exclusive access reservation and NUAR 8465 * is not set, generate UA for all other registrants. 8466 */ 8467 if (type != SPR_TYPE_EX_AC && type != SPR_TYPE_WR_EX && 8468 (lun->MODE_CTRL.queue_flags & SCP_NUAR) == 0) { 8469 for (i = softc->init_min; i < softc->init_max; i++) { 8470 if (i == residx || ctl_get_prkey(lun, i) == 0) 8471 continue; 8472 ctl_est_ua(lun, i, CTL_UA_RES_RELEASE); 8473 } 8474 } 8475 mtx_unlock(&lun->lun_lock); 8476 8477 /* Send msg to other side */ 8478 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8479 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8480 persis_io.pr.pr_info.action = CTL_PR_RELEASE; 8481 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8482 sizeof(persis_io.pr), M_WAITOK); 8483 break; 8484 8485 case SPRO_CLEAR: 8486 /* send msg to other side */ 8487 8488 mtx_lock(&lun->lun_lock); 8489 lun->flags &= ~CTL_LUN_PR_RESERVED; 8490 lun->pr_res_type = 0; 8491 lun->pr_key_count = 0; 8492 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8493 8494 ctl_clr_prkey(lun, residx); 8495 for (i = 0; i < CTL_MAX_INITIATORS; i++) 8496 if (ctl_get_prkey(lun, i) != 0) { 8497 ctl_clr_prkey(lun, i); 8498 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 8499 } 8500 lun->pr_generation++; 8501 mtx_unlock(&lun->lun_lock); 8502 8503 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8504 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8505 persis_io.pr.pr_info.action = CTL_PR_CLEAR; 8506 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8507 sizeof(persis_io.pr), M_WAITOK); 8508 break; 8509 8510 case SPRO_PREEMPT: 8511 case SPRO_PRE_ABO: { 8512 int nretval; 8513 8514 nretval = ctl_pro_preempt(softc, lun, res_key, sa_res_key, type, 8515 residx, ctsio, cdb, param); 8516 if (nretval != 0) 8517 return (CTL_RETVAL_COMPLETE); 8518 break; 8519 } 8520 default: 8521 panic("%s: Invalid PR type %#x", __func__, cdb->action); 8522 } 8523 8524done: 8525 free(ctsio->kern_data_ptr, M_CTL); 8526 ctl_set_success(ctsio); 8527 ctl_done((union ctl_io *)ctsio); 8528 8529 return (retval); 8530} 8531 8532/* 8533 * This routine is for handling a message from the other SC pertaining to 8534 * persistent reserve out. All the error checking will have been done 8535 * so only perorming the action need be done here to keep the two 8536 * in sync. 8537 */ 8538static void 8539ctl_hndl_per_res_out_on_other_sc(union ctl_ha_msg *msg) 8540{ 8541 struct ctl_softc *softc = control_softc; 8542 struct ctl_lun *lun; 8543 int i; 8544 uint32_t residx, targ_lun; 8545 8546 targ_lun = msg->hdr.nexus.targ_mapped_lun; 8547 mtx_lock(&softc->ctl_lock); 8548 if ((targ_lun >= CTL_MAX_LUNS) || 8549 ((lun = softc->ctl_luns[targ_lun]) == NULL)) { 8550 mtx_unlock(&softc->ctl_lock); 8551 return; 8552 } 8553 mtx_lock(&lun->lun_lock); 8554 mtx_unlock(&softc->ctl_lock); 8555 if (lun->flags & CTL_LUN_DISABLED) { 8556 mtx_unlock(&lun->lun_lock); 8557 return; 8558 } 8559 residx = ctl_get_initindex(&msg->hdr.nexus); 8560 switch(msg->pr.pr_info.action) { 8561 case CTL_PR_REG_KEY: 8562 ctl_alloc_prkey(lun, msg->pr.pr_info.residx); 8563 if (ctl_get_prkey(lun, msg->pr.pr_info.residx) == 0) 8564 lun->pr_key_count++; 8565 ctl_set_prkey(lun, msg->pr.pr_info.residx, 8566 scsi_8btou64(msg->pr.pr_info.sa_res_key)); 8567 lun->pr_generation++; 8568 break; 8569 8570 case CTL_PR_UNREG_KEY: 8571 ctl_clr_prkey(lun, msg->pr.pr_info.residx); 8572 lun->pr_key_count--; 8573 8574 /* XXX Need to see if the reservation has been released */ 8575 /* if so do we need to generate UA? */ 8576 if (msg->pr.pr_info.residx == lun->pr_res_idx) { 8577 lun->flags &= ~CTL_LUN_PR_RESERVED; 8578 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8579 8580 if ((lun->pr_res_type == SPR_TYPE_WR_EX_RO || 8581 lun->pr_res_type == SPR_TYPE_EX_AC_RO) && 8582 lun->pr_key_count) { 8583 /* 8584 * If the reservation is a registrants 8585 * only type we need to generate a UA 8586 * for other registered inits. The 8587 * sense code should be RESERVATIONS 8588 * RELEASED 8589 */ 8590 8591 for (i = softc->init_min; i < softc->init_max; i++) { 8592 if (ctl_get_prkey(lun, i) == 0) 8593 continue; 8594 8595 ctl_est_ua(lun, i, CTL_UA_RES_RELEASE); 8596 } 8597 } 8598 lun->pr_res_type = 0; 8599 } else if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS) { 8600 if (lun->pr_key_count==0) { 8601 lun->flags &= ~CTL_LUN_PR_RESERVED; 8602 lun->pr_res_type = 0; 8603 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8604 } 8605 } 8606 lun->pr_generation++; 8607 break; 8608 8609 case CTL_PR_RESERVE: 8610 lun->flags |= CTL_LUN_PR_RESERVED; 8611 lun->pr_res_type = msg->pr.pr_info.res_type; 8612 lun->pr_res_idx = msg->pr.pr_info.residx; 8613 8614 break; 8615 8616 case CTL_PR_RELEASE: 8617 /* 8618 * If this isn't an exclusive access reservation and NUAR 8619 * is not set, generate UA for all other registrants. 8620 */ 8621 if (lun->pr_res_type != SPR_TYPE_EX_AC && 8622 lun->pr_res_type != SPR_TYPE_WR_EX && 8623 (lun->MODE_CTRL.queue_flags & SCP_NUAR) == 0) { 8624 for (i = softc->init_min; i < softc->init_max; i++) 8625 if (i == residx || ctl_get_prkey(lun, i) == 0) 8626 continue; 8627 ctl_est_ua(lun, i, CTL_UA_RES_RELEASE); 8628 } 8629 8630 lun->flags &= ~CTL_LUN_PR_RESERVED; 8631 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8632 lun->pr_res_type = 0; 8633 break; 8634 8635 case CTL_PR_PREEMPT: 8636 ctl_pro_preempt_other(lun, msg); 8637 break; 8638 case CTL_PR_CLEAR: 8639 lun->flags &= ~CTL_LUN_PR_RESERVED; 8640 lun->pr_res_type = 0; 8641 lun->pr_key_count = 0; 8642 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8643 8644 for (i=0; i < CTL_MAX_INITIATORS; i++) { 8645 if (ctl_get_prkey(lun, i) == 0) 8646 continue; 8647 ctl_clr_prkey(lun, i); 8648 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 8649 } 8650 lun->pr_generation++; 8651 break; 8652 } 8653 8654 mtx_unlock(&lun->lun_lock); 8655} 8656 8657int 8658ctl_read_write(struct ctl_scsiio *ctsio) 8659{ 8660 struct ctl_lun *lun; 8661 struct ctl_lba_len_flags *lbalen; 8662 uint64_t lba; 8663 uint32_t num_blocks; 8664 int flags, retval; 8665 int isread; 8666 8667 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 8668 8669 CTL_DEBUG_PRINT(("ctl_read_write: command: %#x\n", ctsio->cdb[0])); 8670 8671 flags = 0; 8672 isread = ctsio->cdb[0] == READ_6 || ctsio->cdb[0] == READ_10 8673 || ctsio->cdb[0] == READ_12 || ctsio->cdb[0] == READ_16; 8674 switch (ctsio->cdb[0]) { 8675 case READ_6: 8676 case WRITE_6: { 8677 struct scsi_rw_6 *cdb; 8678 8679 cdb = (struct scsi_rw_6 *)ctsio->cdb; 8680 8681 lba = scsi_3btoul(cdb->addr); 8682 /* only 5 bits are valid in the most significant address byte */ 8683 lba &= 0x1fffff; 8684 num_blocks = cdb->length; 8685 /* 8686 * This is correct according to SBC-2. 8687 */ 8688 if (num_blocks == 0) 8689 num_blocks = 256; 8690 break; 8691 } 8692 case READ_10: 8693 case WRITE_10: { 8694 struct scsi_rw_10 *cdb; 8695 8696 cdb = (struct scsi_rw_10 *)ctsio->cdb; 8697 if (cdb->byte2 & SRW10_FUA) 8698 flags |= CTL_LLF_FUA; 8699 if (cdb->byte2 & SRW10_DPO) 8700 flags |= CTL_LLF_DPO; 8701 lba = scsi_4btoul(cdb->addr); 8702 num_blocks = scsi_2btoul(cdb->length); 8703 break; 8704 } 8705 case WRITE_VERIFY_10: { 8706 struct scsi_write_verify_10 *cdb; 8707 8708 cdb = (struct scsi_write_verify_10 *)ctsio->cdb; 8709 flags |= CTL_LLF_FUA; 8710 if (cdb->byte2 & SWV_DPO) 8711 flags |= CTL_LLF_DPO; 8712 lba = scsi_4btoul(cdb->addr); 8713 num_blocks = scsi_2btoul(cdb->length); 8714 break; 8715 } 8716 case READ_12: 8717 case WRITE_12: { 8718 struct scsi_rw_12 *cdb; 8719 8720 cdb = (struct scsi_rw_12 *)ctsio->cdb; 8721 if (cdb->byte2 & SRW12_FUA) 8722 flags |= CTL_LLF_FUA; 8723 if (cdb->byte2 & SRW12_DPO) 8724 flags |= CTL_LLF_DPO; 8725 lba = scsi_4btoul(cdb->addr); 8726 num_blocks = scsi_4btoul(cdb->length); 8727 break; 8728 } 8729 case WRITE_VERIFY_12: { 8730 struct scsi_write_verify_12 *cdb; 8731 8732 cdb = (struct scsi_write_verify_12 *)ctsio->cdb; 8733 flags |= CTL_LLF_FUA; 8734 if (cdb->byte2 & SWV_DPO) 8735 flags |= CTL_LLF_DPO; 8736 lba = scsi_4btoul(cdb->addr); 8737 num_blocks = scsi_4btoul(cdb->length); 8738 break; 8739 } 8740 case READ_16: 8741 case WRITE_16: { 8742 struct scsi_rw_16 *cdb; 8743 8744 cdb = (struct scsi_rw_16 *)ctsio->cdb; 8745 if (cdb->byte2 & SRW12_FUA) 8746 flags |= CTL_LLF_FUA; 8747 if (cdb->byte2 & SRW12_DPO) 8748 flags |= CTL_LLF_DPO; 8749 lba = scsi_8btou64(cdb->addr); 8750 num_blocks = scsi_4btoul(cdb->length); 8751 break; 8752 } 8753 case WRITE_ATOMIC_16: { 8754 struct scsi_write_atomic_16 *cdb; 8755 8756 if (lun->be_lun->atomicblock == 0) { 8757 ctl_set_invalid_opcode(ctsio); 8758 ctl_done((union ctl_io *)ctsio); 8759 return (CTL_RETVAL_COMPLETE); 8760 } 8761 8762 cdb = (struct scsi_write_atomic_16 *)ctsio->cdb; 8763 if (cdb->byte2 & SRW12_FUA) 8764 flags |= CTL_LLF_FUA; 8765 if (cdb->byte2 & SRW12_DPO) 8766 flags |= CTL_LLF_DPO; 8767 lba = scsi_8btou64(cdb->addr); 8768 num_blocks = scsi_2btoul(cdb->length); 8769 if (num_blocks > lun->be_lun->atomicblock) { 8770 ctl_set_invalid_field(ctsio, /*sks_valid*/ 1, 8771 /*command*/ 1, /*field*/ 12, /*bit_valid*/ 0, 8772 /*bit*/ 0); 8773 ctl_done((union ctl_io *)ctsio); 8774 return (CTL_RETVAL_COMPLETE); 8775 } 8776 break; 8777 } 8778 case WRITE_VERIFY_16: { 8779 struct scsi_write_verify_16 *cdb; 8780 8781 cdb = (struct scsi_write_verify_16 *)ctsio->cdb; 8782 flags |= CTL_LLF_FUA; 8783 if (cdb->byte2 & SWV_DPO) 8784 flags |= CTL_LLF_DPO; 8785 lba = scsi_8btou64(cdb->addr); 8786 num_blocks = scsi_4btoul(cdb->length); 8787 break; 8788 } 8789 default: 8790 /* 8791 * We got a command we don't support. This shouldn't 8792 * happen, commands should be filtered out above us. 8793 */ 8794 ctl_set_invalid_opcode(ctsio); 8795 ctl_done((union ctl_io *)ctsio); 8796 8797 return (CTL_RETVAL_COMPLETE); 8798 break; /* NOTREACHED */ 8799 } 8800 8801 /* 8802 * The first check is to make sure we're in bounds, the second 8803 * check is to catch wrap-around problems. If the lba + num blocks 8804 * is less than the lba, then we've wrapped around and the block 8805 * range is invalid anyway. 8806 */ 8807 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 8808 || ((lba + num_blocks) < lba)) { 8809 ctl_set_lba_out_of_range(ctsio, 8810 MAX(lba, lun->be_lun->maxlba + 1)); 8811 ctl_done((union ctl_io *)ctsio); 8812 return (CTL_RETVAL_COMPLETE); 8813 } 8814 8815 /* 8816 * According to SBC-3, a transfer length of 0 is not an error. 8817 * Note that this cannot happen with WRITE(6) or READ(6), since 0 8818 * translates to 256 blocks for those commands. 8819 */ 8820 if (num_blocks == 0) { 8821 ctl_set_success(ctsio); 8822 ctl_done((union ctl_io *)ctsio); 8823 return (CTL_RETVAL_COMPLETE); 8824 } 8825 8826 /* Set FUA and/or DPO if caches are disabled. */ 8827 if (isread) { 8828 if ((lun->MODE_CACHING.flags1 & SCP_RCD) != 0) 8829 flags |= CTL_LLF_FUA | CTL_LLF_DPO; 8830 } else { 8831 if ((lun->MODE_CACHING.flags1 & SCP_WCE) == 0) 8832 flags |= CTL_LLF_FUA; 8833 } 8834 8835 lbalen = (struct ctl_lba_len_flags *) 8836 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 8837 lbalen->lba = lba; 8838 lbalen->len = num_blocks; 8839 lbalen->flags = (isread ? CTL_LLF_READ : CTL_LLF_WRITE) | flags; 8840 8841 ctsio->kern_total_len = num_blocks * lun->be_lun->blocksize; 8842 ctsio->kern_rel_offset = 0; 8843 8844 CTL_DEBUG_PRINT(("ctl_read_write: calling data_submit()\n")); 8845 8846 retval = lun->backend->data_submit((union ctl_io *)ctsio); 8847 return (retval); 8848} 8849 8850static int 8851ctl_cnw_cont(union ctl_io *io) 8852{ 8853 struct ctl_scsiio *ctsio; 8854 struct ctl_lun *lun; 8855 struct ctl_lba_len_flags *lbalen; 8856 int retval; 8857 8858 ctsio = &io->scsiio; 8859 ctsio->io_hdr.status = CTL_STATUS_NONE; 8860 ctsio->io_hdr.flags &= ~CTL_FLAG_IO_CONT; 8861 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 8862 lbalen = (struct ctl_lba_len_flags *) 8863 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 8864 lbalen->flags &= ~CTL_LLF_COMPARE; 8865 lbalen->flags |= CTL_LLF_WRITE; 8866 8867 CTL_DEBUG_PRINT(("ctl_cnw_cont: calling data_submit()\n")); 8868 retval = lun->backend->data_submit((union ctl_io *)ctsio); 8869 return (retval); 8870} 8871 8872int 8873ctl_cnw(struct ctl_scsiio *ctsio) 8874{ 8875 struct ctl_lun *lun; 8876 struct ctl_lba_len_flags *lbalen; 8877 uint64_t lba; 8878 uint32_t num_blocks; 8879 int flags, retval; 8880 8881 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 8882 8883 CTL_DEBUG_PRINT(("ctl_cnw: command: %#x\n", ctsio->cdb[0])); 8884 8885 flags = 0; 8886 switch (ctsio->cdb[0]) { 8887 case COMPARE_AND_WRITE: { 8888 struct scsi_compare_and_write *cdb; 8889 8890 cdb = (struct scsi_compare_and_write *)ctsio->cdb; 8891 if (cdb->byte2 & SRW10_FUA) 8892 flags |= CTL_LLF_FUA; 8893 if (cdb->byte2 & SRW10_DPO) 8894 flags |= CTL_LLF_DPO; 8895 lba = scsi_8btou64(cdb->addr); 8896 num_blocks = cdb->length; 8897 break; 8898 } 8899 default: 8900 /* 8901 * We got a command we don't support. This shouldn't 8902 * happen, commands should be filtered out above us. 8903 */ 8904 ctl_set_invalid_opcode(ctsio); 8905 ctl_done((union ctl_io *)ctsio); 8906 8907 return (CTL_RETVAL_COMPLETE); 8908 break; /* NOTREACHED */ 8909 } 8910 8911 /* 8912 * The first check is to make sure we're in bounds, the second 8913 * check is to catch wrap-around problems. If the lba + num blocks 8914 * is less than the lba, then we've wrapped around and the block 8915 * range is invalid anyway. 8916 */ 8917 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 8918 || ((lba + num_blocks) < lba)) { 8919 ctl_set_lba_out_of_range(ctsio, 8920 MAX(lba, lun->be_lun->maxlba + 1)); 8921 ctl_done((union ctl_io *)ctsio); 8922 return (CTL_RETVAL_COMPLETE); 8923 } 8924 8925 /* 8926 * According to SBC-3, a transfer length of 0 is not an error. 8927 */ 8928 if (num_blocks == 0) { 8929 ctl_set_success(ctsio); 8930 ctl_done((union ctl_io *)ctsio); 8931 return (CTL_RETVAL_COMPLETE); 8932 } 8933 8934 /* Set FUA if write cache is disabled. */ 8935 if ((lun->MODE_CACHING.flags1 & SCP_WCE) == 0) 8936 flags |= CTL_LLF_FUA; 8937 8938 ctsio->kern_total_len = 2 * num_blocks * lun->be_lun->blocksize; 8939 ctsio->kern_rel_offset = 0; 8940 8941 /* 8942 * Set the IO_CONT flag, so that if this I/O gets passed to 8943 * ctl_data_submit_done(), it'll get passed back to 8944 * ctl_ctl_cnw_cont() for further processing. 8945 */ 8946 ctsio->io_hdr.flags |= CTL_FLAG_IO_CONT; 8947 ctsio->io_cont = ctl_cnw_cont; 8948 8949 lbalen = (struct ctl_lba_len_flags *) 8950 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 8951 lbalen->lba = lba; 8952 lbalen->len = num_blocks; 8953 lbalen->flags = CTL_LLF_COMPARE | flags; 8954 8955 CTL_DEBUG_PRINT(("ctl_cnw: calling data_submit()\n")); 8956 retval = lun->backend->data_submit((union ctl_io *)ctsio); 8957 return (retval); 8958} 8959 8960int 8961ctl_verify(struct ctl_scsiio *ctsio) 8962{ 8963 struct ctl_lun *lun; 8964 struct ctl_lba_len_flags *lbalen; 8965 uint64_t lba; 8966 uint32_t num_blocks; 8967 int bytchk, flags; 8968 int retval; 8969 8970 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 8971 8972 CTL_DEBUG_PRINT(("ctl_verify: command: %#x\n", ctsio->cdb[0])); 8973 8974 bytchk = 0; 8975 flags = CTL_LLF_FUA; 8976 switch (ctsio->cdb[0]) { 8977 case VERIFY_10: { 8978 struct scsi_verify_10 *cdb; 8979 8980 cdb = (struct scsi_verify_10 *)ctsio->cdb; 8981 if (cdb->byte2 & SVFY_BYTCHK) 8982 bytchk = 1; 8983 if (cdb->byte2 & SVFY_DPO) 8984 flags |= CTL_LLF_DPO; 8985 lba = scsi_4btoul(cdb->addr); 8986 num_blocks = scsi_2btoul(cdb->length); 8987 break; 8988 } 8989 case VERIFY_12: { 8990 struct scsi_verify_12 *cdb; 8991 8992 cdb = (struct scsi_verify_12 *)ctsio->cdb; 8993 if (cdb->byte2 & SVFY_BYTCHK) 8994 bytchk = 1; 8995 if (cdb->byte2 & SVFY_DPO) 8996 flags |= CTL_LLF_DPO; 8997 lba = scsi_4btoul(cdb->addr); 8998 num_blocks = scsi_4btoul(cdb->length); 8999 break; 9000 } 9001 case VERIFY_16: { 9002 struct scsi_rw_16 *cdb; 9003 9004 cdb = (struct scsi_rw_16 *)ctsio->cdb; 9005 if (cdb->byte2 & SVFY_BYTCHK) 9006 bytchk = 1; 9007 if (cdb->byte2 & SVFY_DPO) 9008 flags |= CTL_LLF_DPO; 9009 lba = scsi_8btou64(cdb->addr); 9010 num_blocks = scsi_4btoul(cdb->length); 9011 break; 9012 } 9013 default: 9014 /* 9015 * We got a command we don't support. This shouldn't 9016 * happen, commands should be filtered out above us. 9017 */ 9018 ctl_set_invalid_opcode(ctsio); 9019 ctl_done((union ctl_io *)ctsio); 9020 return (CTL_RETVAL_COMPLETE); 9021 } 9022 9023 /* 9024 * The first check is to make sure we're in bounds, the second 9025 * check is to catch wrap-around problems. If the lba + num blocks 9026 * is less than the lba, then we've wrapped around and the block 9027 * range is invalid anyway. 9028 */ 9029 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 9030 || ((lba + num_blocks) < lba)) { 9031 ctl_set_lba_out_of_range(ctsio, 9032 MAX(lba, lun->be_lun->maxlba + 1)); 9033 ctl_done((union ctl_io *)ctsio); 9034 return (CTL_RETVAL_COMPLETE); 9035 } 9036 9037 /* 9038 * According to SBC-3, a transfer length of 0 is not an error. 9039 */ 9040 if (num_blocks == 0) { 9041 ctl_set_success(ctsio); 9042 ctl_done((union ctl_io *)ctsio); 9043 return (CTL_RETVAL_COMPLETE); 9044 } 9045 9046 lbalen = (struct ctl_lba_len_flags *) 9047 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 9048 lbalen->lba = lba; 9049 lbalen->len = num_blocks; 9050 if (bytchk) { 9051 lbalen->flags = CTL_LLF_COMPARE | flags; 9052 ctsio->kern_total_len = num_blocks * lun->be_lun->blocksize; 9053 } else { 9054 lbalen->flags = CTL_LLF_VERIFY | flags; 9055 ctsio->kern_total_len = 0; 9056 } 9057 ctsio->kern_rel_offset = 0; 9058 9059 CTL_DEBUG_PRINT(("ctl_verify: calling data_submit()\n")); 9060 retval = lun->backend->data_submit((union ctl_io *)ctsio); 9061 return (retval); 9062} 9063 9064int 9065ctl_report_luns(struct ctl_scsiio *ctsio) 9066{ 9067 struct ctl_softc *softc; 9068 struct scsi_report_luns *cdb; 9069 struct scsi_report_luns_data *lun_data; 9070 struct ctl_lun *lun, *request_lun; 9071 struct ctl_port *port; 9072 int num_luns, retval; 9073 uint32_t alloc_len, lun_datalen; 9074 int num_filled; 9075 uint32_t initidx, targ_lun_id, lun_id; 9076 9077 retval = CTL_RETVAL_COMPLETE; 9078 cdb = (struct scsi_report_luns *)ctsio->cdb; 9079 port = ctl_io_port(&ctsio->io_hdr); 9080 softc = port->ctl_softc; 9081 9082 CTL_DEBUG_PRINT(("ctl_report_luns\n")); 9083 9084 mtx_lock(&softc->ctl_lock); 9085 num_luns = 0; 9086 for (targ_lun_id = 0; targ_lun_id < CTL_MAX_LUNS; targ_lun_id++) { 9087 if (ctl_lun_map_from_port(port, targ_lun_id) < CTL_MAX_LUNS) 9088 num_luns++; 9089 } 9090 mtx_unlock(&softc->ctl_lock); 9091 9092 switch (cdb->select_report) { 9093 case RPL_REPORT_DEFAULT: 9094 case RPL_REPORT_ALL: 9095 case RPL_REPORT_NONSUBSID: 9096 break; 9097 case RPL_REPORT_WELLKNOWN: 9098 case RPL_REPORT_ADMIN: 9099 case RPL_REPORT_CONGLOM: 9100 num_luns = 0; 9101 break; 9102 default: 9103 ctl_set_invalid_field(ctsio, 9104 /*sks_valid*/ 1, 9105 /*command*/ 1, 9106 /*field*/ 2, 9107 /*bit_valid*/ 0, 9108 /*bit*/ 0); 9109 ctl_done((union ctl_io *)ctsio); 9110 return (retval); 9111 break; /* NOTREACHED */ 9112 } 9113 9114 alloc_len = scsi_4btoul(cdb->length); 9115 /* 9116 * The initiator has to allocate at least 16 bytes for this request, 9117 * so he can at least get the header and the first LUN. Otherwise 9118 * we reject the request (per SPC-3 rev 14, section 6.21). 9119 */ 9120 if (alloc_len < (sizeof(struct scsi_report_luns_data) + 9121 sizeof(struct scsi_report_luns_lundata))) { 9122 ctl_set_invalid_field(ctsio, 9123 /*sks_valid*/ 1, 9124 /*command*/ 1, 9125 /*field*/ 6, 9126 /*bit_valid*/ 0, 9127 /*bit*/ 0); 9128 ctl_done((union ctl_io *)ctsio); 9129 return (retval); 9130 } 9131 9132 request_lun = (struct ctl_lun *) 9133 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9134 9135 lun_datalen = sizeof(*lun_data) + 9136 (num_luns * sizeof(struct scsi_report_luns_lundata)); 9137 9138 ctsio->kern_data_ptr = malloc(lun_datalen, M_CTL, M_WAITOK | M_ZERO); 9139 lun_data = (struct scsi_report_luns_data *)ctsio->kern_data_ptr; 9140 ctsio->kern_sg_entries = 0; 9141 9142 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 9143 9144 mtx_lock(&softc->ctl_lock); 9145 for (targ_lun_id = 0, num_filled = 0; targ_lun_id < CTL_MAX_LUNS && num_filled < num_luns; targ_lun_id++) { 9146 lun_id = ctl_lun_map_from_port(port, targ_lun_id); 9147 if (lun_id >= CTL_MAX_LUNS) 9148 continue; 9149 lun = softc->ctl_luns[lun_id]; 9150 if (lun == NULL) 9151 continue; 9152 9153 be64enc(lun_data->luns[num_filled++].lundata, 9154 ctl_encode_lun(targ_lun_id)); 9155 9156 /* 9157 * According to SPC-3, rev 14 section 6.21: 9158 * 9159 * "The execution of a REPORT LUNS command to any valid and 9160 * installed logical unit shall clear the REPORTED LUNS DATA 9161 * HAS CHANGED unit attention condition for all logical 9162 * units of that target with respect to the requesting 9163 * initiator. A valid and installed logical unit is one 9164 * having a PERIPHERAL QUALIFIER of 000b in the standard 9165 * INQUIRY data (see 6.4.2)." 9166 * 9167 * If request_lun is NULL, the LUN this report luns command 9168 * was issued to is either disabled or doesn't exist. In that 9169 * case, we shouldn't clear any pending lun change unit 9170 * attention. 9171 */ 9172 if (request_lun != NULL) { 9173 mtx_lock(&lun->lun_lock); 9174 ctl_clr_ua(lun, initidx, CTL_UA_LUN_CHANGE); 9175 mtx_unlock(&lun->lun_lock); 9176 } 9177 } 9178 mtx_unlock(&softc->ctl_lock); 9179 9180 /* 9181 * It's quite possible that we've returned fewer LUNs than we allocated 9182 * space for. Trim it. 9183 */ 9184 lun_datalen = sizeof(*lun_data) + 9185 (num_filled * sizeof(struct scsi_report_luns_lundata)); 9186 9187 if (lun_datalen < alloc_len) { 9188 ctsio->residual = alloc_len - lun_datalen; 9189 ctsio->kern_data_len = lun_datalen; 9190 ctsio->kern_total_len = lun_datalen; 9191 } else { 9192 ctsio->residual = 0; 9193 ctsio->kern_data_len = alloc_len; 9194 ctsio->kern_total_len = alloc_len; 9195 } 9196 ctsio->kern_data_resid = 0; 9197 ctsio->kern_rel_offset = 0; 9198 ctsio->kern_sg_entries = 0; 9199 9200 /* 9201 * We set this to the actual data length, regardless of how much 9202 * space we actually have to return results. If the user looks at 9203 * this value, he'll know whether or not he allocated enough space 9204 * and reissue the command if necessary. We don't support well 9205 * known logical units, so if the user asks for that, return none. 9206 */ 9207 scsi_ulto4b(lun_datalen - 8, lun_data->length); 9208 9209 /* 9210 * We can only return SCSI_STATUS_CHECK_COND when we can't satisfy 9211 * this request. 9212 */ 9213 ctl_set_success(ctsio); 9214 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9215 ctsio->be_move_done = ctl_config_move_done; 9216 ctl_datamove((union ctl_io *)ctsio); 9217 return (retval); 9218} 9219 9220int 9221ctl_request_sense(struct ctl_scsiio *ctsio) 9222{ 9223 struct scsi_request_sense *cdb; 9224 struct scsi_sense_data *sense_ptr; 9225 struct ctl_softc *softc; 9226 struct ctl_lun *lun; 9227 uint32_t initidx; 9228 int have_error; 9229 scsi_sense_data_type sense_format; 9230 ctl_ua_type ua_type; 9231 uint8_t asc = 0, ascq = 0; 9232 9233 cdb = (struct scsi_request_sense *)ctsio->cdb; 9234 9235 softc = control_softc; 9236 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9237 9238 CTL_DEBUG_PRINT(("ctl_request_sense\n")); 9239 9240 /* 9241 * Determine which sense format the user wants. 9242 */ 9243 if (cdb->byte2 & SRS_DESC) 9244 sense_format = SSD_TYPE_DESC; 9245 else 9246 sense_format = SSD_TYPE_FIXED; 9247 9248 ctsio->kern_data_ptr = malloc(sizeof(*sense_ptr), M_CTL, M_WAITOK); 9249 sense_ptr = (struct scsi_sense_data *)ctsio->kern_data_ptr; 9250 ctsio->kern_sg_entries = 0; 9251 9252 /* 9253 * struct scsi_sense_data, which is currently set to 256 bytes, is 9254 * larger than the largest allowed value for the length field in the 9255 * REQUEST SENSE CDB, which is 252 bytes as of SPC-4. 9256 */ 9257 ctsio->residual = 0; 9258 ctsio->kern_data_len = cdb->length; 9259 ctsio->kern_total_len = cdb->length; 9260 9261 ctsio->kern_data_resid = 0; 9262 ctsio->kern_rel_offset = 0; 9263 ctsio->kern_sg_entries = 0; 9264 9265 /* 9266 * If we don't have a LUN, we don't have any pending sense. 9267 */ 9268 if (lun == NULL || 9269 ((lun->flags & CTL_LUN_PRIMARY_SC) == 0 && 9270 softc->ha_link < CTL_HA_LINK_UNKNOWN)) { 9271 /* "Logical unit not supported" */ 9272 ctl_set_sense_data(sense_ptr, NULL, sense_format, 9273 /*current_error*/ 1, 9274 /*sense_key*/ SSD_KEY_ILLEGAL_REQUEST, 9275 /*asc*/ 0x25, 9276 /*ascq*/ 0x00, 9277 SSD_ELEM_NONE); 9278 goto send; 9279 } 9280 9281 have_error = 0; 9282 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 9283 /* 9284 * Check for pending sense, and then for pending unit attentions. 9285 * Pending sense gets returned first, then pending unit attentions. 9286 */ 9287 mtx_lock(&lun->lun_lock); 9288#ifdef CTL_WITH_CA 9289 if (ctl_is_set(lun->have_ca, initidx)) { 9290 scsi_sense_data_type stored_format; 9291 9292 /* 9293 * Check to see which sense format was used for the stored 9294 * sense data. 9295 */ 9296 stored_format = scsi_sense_type(&lun->pending_sense[initidx]); 9297 9298 /* 9299 * If the user requested a different sense format than the 9300 * one we stored, then we need to convert it to the other 9301 * format. If we're going from descriptor to fixed format 9302 * sense data, we may lose things in translation, depending 9303 * on what options were used. 9304 * 9305 * If the stored format is SSD_TYPE_NONE (i.e. invalid), 9306 * for some reason we'll just copy it out as-is. 9307 */ 9308 if ((stored_format == SSD_TYPE_FIXED) 9309 && (sense_format == SSD_TYPE_DESC)) 9310 ctl_sense_to_desc((struct scsi_sense_data_fixed *) 9311 &lun->pending_sense[initidx], 9312 (struct scsi_sense_data_desc *)sense_ptr); 9313 else if ((stored_format == SSD_TYPE_DESC) 9314 && (sense_format == SSD_TYPE_FIXED)) 9315 ctl_sense_to_fixed((struct scsi_sense_data_desc *) 9316 &lun->pending_sense[initidx], 9317 (struct scsi_sense_data_fixed *)sense_ptr); 9318 else 9319 memcpy(sense_ptr, &lun->pending_sense[initidx], 9320 MIN(sizeof(*sense_ptr), 9321 sizeof(lun->pending_sense[initidx]))); 9322 9323 ctl_clear_mask(lun->have_ca, initidx); 9324 have_error = 1; 9325 } else 9326#endif 9327 if (have_error == 0) { 9328 ua_type = ctl_build_ua(lun, initidx, sense_ptr, sense_format); 9329 if (ua_type != CTL_UA_NONE) 9330 have_error = 1; 9331 } 9332 if (have_error == 0) { 9333 /* 9334 * Report informational exception if have one and allowed. 9335 */ 9336 if (lun->MODE_IE.mrie != SIEP_MRIE_NO) { 9337 asc = lun->ie_asc; 9338 ascq = lun->ie_ascq; 9339 } 9340 ctl_set_sense_data(sense_ptr, lun, sense_format, 9341 /*current_error*/ 1, 9342 /*sense_key*/ SSD_KEY_NO_SENSE, 9343 /*asc*/ asc, 9344 /*ascq*/ ascq, 9345 SSD_ELEM_NONE); 9346 } 9347 mtx_unlock(&lun->lun_lock); 9348 9349send: 9350 /* 9351 * We report the SCSI status as OK, since the status of the command 9352 * itself is OK. We're reporting sense as parameter data. 9353 */ 9354 ctl_set_success(ctsio); 9355 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9356 ctsio->be_move_done = ctl_config_move_done; 9357 ctl_datamove((union ctl_io *)ctsio); 9358 return (CTL_RETVAL_COMPLETE); 9359} 9360 9361int 9362ctl_tur(struct ctl_scsiio *ctsio) 9363{ 9364 9365 CTL_DEBUG_PRINT(("ctl_tur\n")); 9366 9367 ctl_set_success(ctsio); 9368 ctl_done((union ctl_io *)ctsio); 9369 9370 return (CTL_RETVAL_COMPLETE); 9371} 9372 9373/* 9374 * SCSI VPD page 0x00, the Supported VPD Pages page. 9375 */ 9376static int 9377ctl_inquiry_evpd_supported(struct ctl_scsiio *ctsio, int alloc_len) 9378{ 9379 struct scsi_vpd_supported_pages *pages; 9380 int sup_page_size; 9381 struct ctl_lun *lun; 9382 int p; 9383 9384 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9385 9386 sup_page_size = sizeof(struct scsi_vpd_supported_pages) * 9387 SCSI_EVPD_NUM_SUPPORTED_PAGES; 9388 ctsio->kern_data_ptr = malloc(sup_page_size, M_CTL, M_WAITOK | M_ZERO); 9389 pages = (struct scsi_vpd_supported_pages *)ctsio->kern_data_ptr; 9390 ctsio->kern_sg_entries = 0; 9391 9392 if (sup_page_size < alloc_len) { 9393 ctsio->residual = alloc_len - sup_page_size; 9394 ctsio->kern_data_len = sup_page_size; 9395 ctsio->kern_total_len = sup_page_size; 9396 } else { 9397 ctsio->residual = 0; 9398 ctsio->kern_data_len = alloc_len; 9399 ctsio->kern_total_len = alloc_len; 9400 } 9401 ctsio->kern_data_resid = 0; 9402 ctsio->kern_rel_offset = 0; 9403 ctsio->kern_sg_entries = 0; 9404 9405 /* 9406 * The control device is always connected. The disk device, on the 9407 * other hand, may not be online all the time. Need to change this 9408 * to figure out whether the disk device is actually online or not. 9409 */ 9410 if (lun != NULL) 9411 pages->device = (SID_QUAL_LU_CONNECTED << 5) | 9412 lun->be_lun->lun_type; 9413 else 9414 pages->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9415 9416 p = 0; 9417 /* Supported VPD pages */ 9418 pages->page_list[p++] = SVPD_SUPPORTED_PAGES; 9419 /* Serial Number */ 9420 pages->page_list[p++] = SVPD_UNIT_SERIAL_NUMBER; 9421 /* Device Identification */ 9422 pages->page_list[p++] = SVPD_DEVICE_ID; 9423 /* Extended INQUIRY Data */ 9424 pages->page_list[p++] = SVPD_EXTENDED_INQUIRY_DATA; 9425 /* Mode Page Policy */ 9426 pages->page_list[p++] = SVPD_MODE_PAGE_POLICY; 9427 /* SCSI Ports */ 9428 pages->page_list[p++] = SVPD_SCSI_PORTS; 9429 /* Third-party Copy */ 9430 pages->page_list[p++] = SVPD_SCSI_TPC; 9431 if (lun != NULL && lun->be_lun->lun_type == T_DIRECT) { 9432 /* Block limits */ 9433 pages->page_list[p++] = SVPD_BLOCK_LIMITS; 9434 /* Block Device Characteristics */ 9435 pages->page_list[p++] = SVPD_BDC; 9436 /* Logical Block Provisioning */ 9437 pages->page_list[p++] = SVPD_LBP; 9438 } 9439 pages->length = p; 9440 9441 ctl_set_success(ctsio); 9442 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9443 ctsio->be_move_done = ctl_config_move_done; 9444 ctl_datamove((union ctl_io *)ctsio); 9445 return (CTL_RETVAL_COMPLETE); 9446} 9447 9448/* 9449 * SCSI VPD page 0x80, the Unit Serial Number page. 9450 */ 9451static int 9452ctl_inquiry_evpd_serial(struct ctl_scsiio *ctsio, int alloc_len) 9453{ 9454 struct scsi_vpd_unit_serial_number *sn_ptr; 9455 struct ctl_lun *lun; 9456 int data_len; 9457 9458 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9459 9460 data_len = 4 + CTL_SN_LEN; 9461 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9462 sn_ptr = (struct scsi_vpd_unit_serial_number *)ctsio->kern_data_ptr; 9463 if (data_len < alloc_len) { 9464 ctsio->residual = alloc_len - data_len; 9465 ctsio->kern_data_len = data_len; 9466 ctsio->kern_total_len = data_len; 9467 } else { 9468 ctsio->residual = 0; 9469 ctsio->kern_data_len = alloc_len; 9470 ctsio->kern_total_len = alloc_len; 9471 } 9472 ctsio->kern_data_resid = 0; 9473 ctsio->kern_rel_offset = 0; 9474 ctsio->kern_sg_entries = 0; 9475 9476 /* 9477 * The control device is always connected. The disk device, on the 9478 * other hand, may not be online all the time. Need to change this 9479 * to figure out whether the disk device is actually online or not. 9480 */ 9481 if (lun != NULL) 9482 sn_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9483 lun->be_lun->lun_type; 9484 else 9485 sn_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9486 9487 sn_ptr->page_code = SVPD_UNIT_SERIAL_NUMBER; 9488 sn_ptr->length = CTL_SN_LEN; 9489 /* 9490 * If we don't have a LUN, we just leave the serial number as 9491 * all spaces. 9492 */ 9493 if (lun != NULL) { 9494 strncpy((char *)sn_ptr->serial_num, 9495 (char *)lun->be_lun->serial_num, CTL_SN_LEN); 9496 } else 9497 memset(sn_ptr->serial_num, 0x20, CTL_SN_LEN); 9498 9499 ctl_set_success(ctsio); 9500 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9501 ctsio->be_move_done = ctl_config_move_done; 9502 ctl_datamove((union ctl_io *)ctsio); 9503 return (CTL_RETVAL_COMPLETE); 9504} 9505 9506 9507/* 9508 * SCSI VPD page 0x86, the Extended INQUIRY Data page. 9509 */ 9510static int 9511ctl_inquiry_evpd_eid(struct ctl_scsiio *ctsio, int alloc_len) 9512{ 9513 struct scsi_vpd_extended_inquiry_data *eid_ptr; 9514 struct ctl_lun *lun; 9515 int data_len; 9516 9517 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9518 9519 data_len = sizeof(struct scsi_vpd_extended_inquiry_data); 9520 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9521 eid_ptr = (struct scsi_vpd_extended_inquiry_data *)ctsio->kern_data_ptr; 9522 ctsio->kern_sg_entries = 0; 9523 9524 if (data_len < alloc_len) { 9525 ctsio->residual = alloc_len - data_len; 9526 ctsio->kern_data_len = data_len; 9527 ctsio->kern_total_len = data_len; 9528 } else { 9529 ctsio->residual = 0; 9530 ctsio->kern_data_len = alloc_len; 9531 ctsio->kern_total_len = alloc_len; 9532 } 9533 ctsio->kern_data_resid = 0; 9534 ctsio->kern_rel_offset = 0; 9535 ctsio->kern_sg_entries = 0; 9536 9537 /* 9538 * The control device is always connected. The disk device, on the 9539 * other hand, may not be online all the time. 9540 */ 9541 if (lun != NULL) 9542 eid_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9543 lun->be_lun->lun_type; 9544 else 9545 eid_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9546 eid_ptr->page_code = SVPD_EXTENDED_INQUIRY_DATA; 9547 scsi_ulto2b(data_len - 4, eid_ptr->page_length); 9548 /* 9549 * We support head of queue, ordered and simple tags. 9550 */ 9551 eid_ptr->flags2 = SVPD_EID_HEADSUP | SVPD_EID_ORDSUP | SVPD_EID_SIMPSUP; 9552 /* 9553 * Volatile cache supported. 9554 */ 9555 eid_ptr->flags3 = SVPD_EID_V_SUP; 9556 9557 /* 9558 * This means that we clear the REPORTED LUNS DATA HAS CHANGED unit 9559 * attention for a particular IT nexus on all LUNs once we report 9560 * it to that nexus once. This bit is required as of SPC-4. 9561 */ 9562 eid_ptr->flags4 = SVPD_EID_LUICLR; 9563 9564 /* 9565 * XXX KDM in order to correctly answer this, we would need 9566 * information from the SIM to determine how much sense data it 9567 * can send. So this would really be a path inquiry field, most 9568 * likely. This can be set to a maximum of 252 according to SPC-4, 9569 * but the hardware may or may not be able to support that much. 9570 * 0 just means that the maximum sense data length is not reported. 9571 */ 9572 eid_ptr->max_sense_length = 0; 9573 9574 ctl_set_success(ctsio); 9575 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9576 ctsio->be_move_done = ctl_config_move_done; 9577 ctl_datamove((union ctl_io *)ctsio); 9578 return (CTL_RETVAL_COMPLETE); 9579} 9580 9581static int 9582ctl_inquiry_evpd_mpp(struct ctl_scsiio *ctsio, int alloc_len) 9583{ 9584 struct scsi_vpd_mode_page_policy *mpp_ptr; 9585 struct ctl_lun *lun; 9586 int data_len; 9587 9588 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9589 9590 data_len = sizeof(struct scsi_vpd_mode_page_policy) + 9591 sizeof(struct scsi_vpd_mode_page_policy_descr); 9592 9593 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9594 mpp_ptr = (struct scsi_vpd_mode_page_policy *)ctsio->kern_data_ptr; 9595 ctsio->kern_sg_entries = 0; 9596 9597 if (data_len < alloc_len) { 9598 ctsio->residual = alloc_len - data_len; 9599 ctsio->kern_data_len = data_len; 9600 ctsio->kern_total_len = data_len; 9601 } else { 9602 ctsio->residual = 0; 9603 ctsio->kern_data_len = alloc_len; 9604 ctsio->kern_total_len = alloc_len; 9605 } 9606 ctsio->kern_data_resid = 0; 9607 ctsio->kern_rel_offset = 0; 9608 ctsio->kern_sg_entries = 0; 9609 9610 /* 9611 * The control device is always connected. The disk device, on the 9612 * other hand, may not be online all the time. 9613 */ 9614 if (lun != NULL) 9615 mpp_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9616 lun->be_lun->lun_type; 9617 else 9618 mpp_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9619 mpp_ptr->page_code = SVPD_MODE_PAGE_POLICY; 9620 scsi_ulto2b(data_len - 4, mpp_ptr->page_length); 9621 mpp_ptr->descr[0].page_code = 0x3f; 9622 mpp_ptr->descr[0].subpage_code = 0xff; 9623 mpp_ptr->descr[0].policy = SVPD_MPP_SHARED; 9624 9625 ctl_set_success(ctsio); 9626 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9627 ctsio->be_move_done = ctl_config_move_done; 9628 ctl_datamove((union ctl_io *)ctsio); 9629 return (CTL_RETVAL_COMPLETE); 9630} 9631 9632/* 9633 * SCSI VPD page 0x83, the Device Identification page. 9634 */ 9635static int 9636ctl_inquiry_evpd_devid(struct ctl_scsiio *ctsio, int alloc_len) 9637{ 9638 struct scsi_vpd_device_id *devid_ptr; 9639 struct scsi_vpd_id_descriptor *desc; 9640 struct ctl_softc *softc; 9641 struct ctl_lun *lun; 9642 struct ctl_port *port; 9643 int data_len, g; 9644 uint8_t proto; 9645 9646 softc = control_softc; 9647 9648 port = ctl_io_port(&ctsio->io_hdr); 9649 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9650 9651 data_len = sizeof(struct scsi_vpd_device_id) + 9652 sizeof(struct scsi_vpd_id_descriptor) + 9653 sizeof(struct scsi_vpd_id_rel_trgt_port_id) + 9654 sizeof(struct scsi_vpd_id_descriptor) + 9655 sizeof(struct scsi_vpd_id_trgt_port_grp_id); 9656 if (lun && lun->lun_devid) 9657 data_len += lun->lun_devid->len; 9658 if (port && port->port_devid) 9659 data_len += port->port_devid->len; 9660 if (port && port->target_devid) 9661 data_len += port->target_devid->len; 9662 9663 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9664 devid_ptr = (struct scsi_vpd_device_id *)ctsio->kern_data_ptr; 9665 ctsio->kern_sg_entries = 0; 9666 9667 if (data_len < alloc_len) { 9668 ctsio->residual = alloc_len - data_len; 9669 ctsio->kern_data_len = data_len; 9670 ctsio->kern_total_len = data_len; 9671 } else { 9672 ctsio->residual = 0; 9673 ctsio->kern_data_len = alloc_len; 9674 ctsio->kern_total_len = alloc_len; 9675 } 9676 ctsio->kern_data_resid = 0; 9677 ctsio->kern_rel_offset = 0; 9678 ctsio->kern_sg_entries = 0; 9679 9680 /* 9681 * The control device is always connected. The disk device, on the 9682 * other hand, may not be online all the time. 9683 */ 9684 if (lun != NULL) 9685 devid_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9686 lun->be_lun->lun_type; 9687 else 9688 devid_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9689 devid_ptr->page_code = SVPD_DEVICE_ID; 9690 scsi_ulto2b(data_len - 4, devid_ptr->length); 9691 9692 if (port && port->port_type == CTL_PORT_FC) 9693 proto = SCSI_PROTO_FC << 4; 9694 else if (port && port->port_type == CTL_PORT_ISCSI) 9695 proto = SCSI_PROTO_ISCSI << 4; 9696 else 9697 proto = SCSI_PROTO_SPI << 4; 9698 desc = (struct scsi_vpd_id_descriptor *)devid_ptr->desc_list; 9699 9700 /* 9701 * We're using a LUN association here. i.e., this device ID is a 9702 * per-LUN identifier. 9703 */ 9704 if (lun && lun->lun_devid) { 9705 memcpy(desc, lun->lun_devid->data, lun->lun_devid->len); 9706 desc = (struct scsi_vpd_id_descriptor *)((uint8_t *)desc + 9707 lun->lun_devid->len); 9708 } 9709 9710 /* 9711 * This is for the WWPN which is a port association. 9712 */ 9713 if (port && port->port_devid) { 9714 memcpy(desc, port->port_devid->data, port->port_devid->len); 9715 desc = (struct scsi_vpd_id_descriptor *)((uint8_t *)desc + 9716 port->port_devid->len); 9717 } 9718 9719 /* 9720 * This is for the Relative Target Port(type 4h) identifier 9721 */ 9722 desc->proto_codeset = proto | SVPD_ID_CODESET_BINARY; 9723 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_PORT | 9724 SVPD_ID_TYPE_RELTARG; 9725 desc->length = 4; 9726 scsi_ulto2b(ctsio->io_hdr.nexus.targ_port, &desc->identifier[2]); 9727 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 9728 sizeof(struct scsi_vpd_id_rel_trgt_port_id)); 9729 9730 /* 9731 * This is for the Target Port Group(type 5h) identifier 9732 */ 9733 desc->proto_codeset = proto | SVPD_ID_CODESET_BINARY; 9734 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_PORT | 9735 SVPD_ID_TYPE_TPORTGRP; 9736 desc->length = 4; 9737 if (softc->is_single || 9738 (port && port->status & CTL_PORT_STATUS_HA_SHARED)) 9739 g = 1; 9740 else 9741 g = 2 + ctsio->io_hdr.nexus.targ_port / softc->port_cnt; 9742 scsi_ulto2b(g, &desc->identifier[2]); 9743 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 9744 sizeof(struct scsi_vpd_id_trgt_port_grp_id)); 9745 9746 /* 9747 * This is for the Target identifier 9748 */ 9749 if (port && port->target_devid) { 9750 memcpy(desc, port->target_devid->data, port->target_devid->len); 9751 } 9752 9753 ctl_set_success(ctsio); 9754 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9755 ctsio->be_move_done = ctl_config_move_done; 9756 ctl_datamove((union ctl_io *)ctsio); 9757 return (CTL_RETVAL_COMPLETE); 9758} 9759 9760static int 9761ctl_inquiry_evpd_scsi_ports(struct ctl_scsiio *ctsio, int alloc_len) 9762{ 9763 struct ctl_softc *softc = control_softc; 9764 struct scsi_vpd_scsi_ports *sp; 9765 struct scsi_vpd_port_designation *pd; 9766 struct scsi_vpd_port_designation_cont *pdc; 9767 struct ctl_lun *lun; 9768 struct ctl_port *port; 9769 int data_len, num_target_ports, iid_len, id_len; 9770 9771 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9772 9773 num_target_ports = 0; 9774 iid_len = 0; 9775 id_len = 0; 9776 mtx_lock(&softc->ctl_lock); 9777 STAILQ_FOREACH(port, &softc->port_list, links) { 9778 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 9779 continue; 9780 if (lun != NULL && 9781 ctl_lun_map_to_port(port, lun->lun) >= CTL_MAX_LUNS) 9782 continue; 9783 num_target_ports++; 9784 if (port->init_devid) 9785 iid_len += port->init_devid->len; 9786 if (port->port_devid) 9787 id_len += port->port_devid->len; 9788 } 9789 mtx_unlock(&softc->ctl_lock); 9790 9791 data_len = sizeof(struct scsi_vpd_scsi_ports) + 9792 num_target_ports * (sizeof(struct scsi_vpd_port_designation) + 9793 sizeof(struct scsi_vpd_port_designation_cont)) + iid_len + id_len; 9794 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9795 sp = (struct scsi_vpd_scsi_ports *)ctsio->kern_data_ptr; 9796 ctsio->kern_sg_entries = 0; 9797 9798 if (data_len < alloc_len) { 9799 ctsio->residual = alloc_len - data_len; 9800 ctsio->kern_data_len = data_len; 9801 ctsio->kern_total_len = data_len; 9802 } else { 9803 ctsio->residual = 0; 9804 ctsio->kern_data_len = alloc_len; 9805 ctsio->kern_total_len = alloc_len; 9806 } 9807 ctsio->kern_data_resid = 0; 9808 ctsio->kern_rel_offset = 0; 9809 ctsio->kern_sg_entries = 0; 9810 9811 /* 9812 * The control device is always connected. The disk device, on the 9813 * other hand, may not be online all the time. Need to change this 9814 * to figure out whether the disk device is actually online or not. 9815 */ 9816 if (lun != NULL) 9817 sp->device = (SID_QUAL_LU_CONNECTED << 5) | 9818 lun->be_lun->lun_type; 9819 else 9820 sp->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9821 9822 sp->page_code = SVPD_SCSI_PORTS; 9823 scsi_ulto2b(data_len - sizeof(struct scsi_vpd_scsi_ports), 9824 sp->page_length); 9825 pd = &sp->design[0]; 9826 9827 mtx_lock(&softc->ctl_lock); 9828 STAILQ_FOREACH(port, &softc->port_list, links) { 9829 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 9830 continue; 9831 if (lun != NULL && 9832 ctl_lun_map_to_port(port, lun->lun) >= CTL_MAX_LUNS) 9833 continue; 9834 scsi_ulto2b(port->targ_port, pd->relative_port_id); 9835 if (port->init_devid) { 9836 iid_len = port->init_devid->len; 9837 memcpy(pd->initiator_transportid, 9838 port->init_devid->data, port->init_devid->len); 9839 } else 9840 iid_len = 0; 9841 scsi_ulto2b(iid_len, pd->initiator_transportid_length); 9842 pdc = (struct scsi_vpd_port_designation_cont *) 9843 (&pd->initiator_transportid[iid_len]); 9844 if (port->port_devid) { 9845 id_len = port->port_devid->len; 9846 memcpy(pdc->target_port_descriptors, 9847 port->port_devid->data, port->port_devid->len); 9848 } else 9849 id_len = 0; 9850 scsi_ulto2b(id_len, pdc->target_port_descriptors_length); 9851 pd = (struct scsi_vpd_port_designation *) 9852 ((uint8_t *)pdc->target_port_descriptors + id_len); 9853 } 9854 mtx_unlock(&softc->ctl_lock); 9855 9856 ctl_set_success(ctsio); 9857 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9858 ctsio->be_move_done = ctl_config_move_done; 9859 ctl_datamove((union ctl_io *)ctsio); 9860 return (CTL_RETVAL_COMPLETE); 9861} 9862 9863static int 9864ctl_inquiry_evpd_block_limits(struct ctl_scsiio *ctsio, int alloc_len) 9865{ 9866 struct scsi_vpd_block_limits *bl_ptr; 9867 struct ctl_lun *lun; 9868 uint64_t ival; 9869 9870 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9871 9872 ctsio->kern_data_ptr = malloc(sizeof(*bl_ptr), M_CTL, M_WAITOK | M_ZERO); 9873 bl_ptr = (struct scsi_vpd_block_limits *)ctsio->kern_data_ptr; 9874 ctsio->kern_sg_entries = 0; 9875 9876 if (sizeof(*bl_ptr) < alloc_len) { 9877 ctsio->residual = alloc_len - sizeof(*bl_ptr); 9878 ctsio->kern_data_len = sizeof(*bl_ptr); 9879 ctsio->kern_total_len = sizeof(*bl_ptr); 9880 } else { 9881 ctsio->residual = 0; 9882 ctsio->kern_data_len = alloc_len; 9883 ctsio->kern_total_len = alloc_len; 9884 } 9885 ctsio->kern_data_resid = 0; 9886 ctsio->kern_rel_offset = 0; 9887 ctsio->kern_sg_entries = 0; 9888 9889 /* 9890 * The control device is always connected. The disk device, on the 9891 * other hand, may not be online all the time. Need to change this 9892 * to figure out whether the disk device is actually online or not. 9893 */ 9894 if (lun != NULL) 9895 bl_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9896 lun->be_lun->lun_type; 9897 else 9898 bl_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9899 9900 bl_ptr->page_code = SVPD_BLOCK_LIMITS; 9901 scsi_ulto2b(sizeof(*bl_ptr) - 4, bl_ptr->page_length); 9902 bl_ptr->max_cmp_write_len = 0xff; 9903 scsi_ulto4b(0xffffffff, bl_ptr->max_txfer_len); 9904 if (lun != NULL) { 9905 scsi_ulto4b(lun->be_lun->opttxferlen, bl_ptr->opt_txfer_len); 9906 if (lun->be_lun->flags & CTL_LUN_FLAG_UNMAP) { 9907 ival = 0xffffffff; 9908 ctl_get_opt_number(&lun->be_lun->options, 9909 "unmap_max_lba", &ival); 9910 scsi_ulto4b(ival, bl_ptr->max_unmap_lba_cnt); 9911 ival = 0xffffffff; 9912 ctl_get_opt_number(&lun->be_lun->options, 9913 "unmap_max_descr", &ival); 9914 scsi_ulto4b(ival, bl_ptr->max_unmap_blk_cnt); 9915 if (lun->be_lun->ublockexp != 0) { 9916 scsi_ulto4b((1 << lun->be_lun->ublockexp), 9917 bl_ptr->opt_unmap_grain); 9918 scsi_ulto4b(0x80000000 | lun->be_lun->ublockoff, 9919 bl_ptr->unmap_grain_align); 9920 } 9921 } 9922 scsi_ulto4b(lun->be_lun->atomicblock, 9923 bl_ptr->max_atomic_transfer_length); 9924 scsi_ulto4b(0, bl_ptr->atomic_alignment); 9925 scsi_ulto4b(0, bl_ptr->atomic_transfer_length_granularity); 9926 scsi_ulto4b(0, bl_ptr->max_atomic_transfer_length_with_atomic_boundary); 9927 scsi_ulto4b(0, bl_ptr->max_atomic_boundary_size); 9928 ival = UINT64_MAX; 9929 ctl_get_opt_number(&lun->be_lun->options, "write_same_max_lba", &ival); 9930 scsi_u64to8b(ival, bl_ptr->max_write_same_length); 9931 } 9932 9933 ctl_set_success(ctsio); 9934 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9935 ctsio->be_move_done = ctl_config_move_done; 9936 ctl_datamove((union ctl_io *)ctsio); 9937 return (CTL_RETVAL_COMPLETE); 9938} 9939 9940static int 9941ctl_inquiry_evpd_bdc(struct ctl_scsiio *ctsio, int alloc_len) 9942{ 9943 struct scsi_vpd_block_device_characteristics *bdc_ptr; 9944 struct ctl_lun *lun; 9945 const char *value; 9946 u_int i; 9947 9948 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9949 9950 ctsio->kern_data_ptr = malloc(sizeof(*bdc_ptr), M_CTL, M_WAITOK | M_ZERO); 9951 bdc_ptr = (struct scsi_vpd_block_device_characteristics *)ctsio->kern_data_ptr; 9952 ctsio->kern_sg_entries = 0; 9953 9954 if (sizeof(*bdc_ptr) < alloc_len) { 9955 ctsio->residual = alloc_len - sizeof(*bdc_ptr); 9956 ctsio->kern_data_len = sizeof(*bdc_ptr); 9957 ctsio->kern_total_len = sizeof(*bdc_ptr); 9958 } else { 9959 ctsio->residual = 0; 9960 ctsio->kern_data_len = alloc_len; 9961 ctsio->kern_total_len = alloc_len; 9962 } 9963 ctsio->kern_data_resid = 0; 9964 ctsio->kern_rel_offset = 0; 9965 ctsio->kern_sg_entries = 0; 9966 9967 /* 9968 * The control device is always connected. The disk device, on the 9969 * other hand, may not be online all the time. Need to change this 9970 * to figure out whether the disk device is actually online or not. 9971 */ 9972 if (lun != NULL) 9973 bdc_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9974 lun->be_lun->lun_type; 9975 else 9976 bdc_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9977 bdc_ptr->page_code = SVPD_BDC; 9978 scsi_ulto2b(sizeof(*bdc_ptr) - 4, bdc_ptr->page_length); 9979 if (lun != NULL && 9980 (value = ctl_get_opt(&lun->be_lun->options, "rpm")) != NULL) 9981 i = strtol(value, NULL, 0); 9982 else 9983 i = CTL_DEFAULT_ROTATION_RATE; 9984 scsi_ulto2b(i, bdc_ptr->medium_rotation_rate); 9985 if (lun != NULL && 9986 (value = ctl_get_opt(&lun->be_lun->options, "formfactor")) != NULL) 9987 i = strtol(value, NULL, 0); 9988 else 9989 i = 0; 9990 bdc_ptr->wab_wac_ff = (i & 0x0f); 9991 bdc_ptr->flags = SVPD_FUAB | SVPD_VBULS; 9992 9993 ctl_set_success(ctsio); 9994 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9995 ctsio->be_move_done = ctl_config_move_done; 9996 ctl_datamove((union ctl_io *)ctsio); 9997 return (CTL_RETVAL_COMPLETE); 9998} 9999 10000static int 10001ctl_inquiry_evpd_lbp(struct ctl_scsiio *ctsio, int alloc_len) 10002{ 10003 struct scsi_vpd_logical_block_prov *lbp_ptr; 10004 struct ctl_lun *lun; 10005 const char *value; 10006 10007 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10008 10009 ctsio->kern_data_ptr = malloc(sizeof(*lbp_ptr), M_CTL, M_WAITOK | M_ZERO); 10010 lbp_ptr = (struct scsi_vpd_logical_block_prov *)ctsio->kern_data_ptr; 10011 ctsio->kern_sg_entries = 0; 10012 10013 if (sizeof(*lbp_ptr) < alloc_len) { 10014 ctsio->residual = alloc_len - sizeof(*lbp_ptr); 10015 ctsio->kern_data_len = sizeof(*lbp_ptr); 10016 ctsio->kern_total_len = sizeof(*lbp_ptr); 10017 } else { 10018 ctsio->residual = 0; 10019 ctsio->kern_data_len = alloc_len; 10020 ctsio->kern_total_len = alloc_len; 10021 } 10022 ctsio->kern_data_resid = 0; 10023 ctsio->kern_rel_offset = 0; 10024 ctsio->kern_sg_entries = 0; 10025 10026 /* 10027 * The control device is always connected. The disk device, on the 10028 * other hand, may not be online all the time. Need to change this 10029 * to figure out whether the disk device is actually online or not. 10030 */ 10031 if (lun != NULL) 10032 lbp_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10033 lun->be_lun->lun_type; 10034 else 10035 lbp_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10036 10037 lbp_ptr->page_code = SVPD_LBP; 10038 scsi_ulto2b(sizeof(*lbp_ptr) - 4, lbp_ptr->page_length); 10039 lbp_ptr->threshold_exponent = CTL_LBP_EXPONENT; 10040 if (lun != NULL && lun->be_lun->flags & CTL_LUN_FLAG_UNMAP) { 10041 lbp_ptr->flags = SVPD_LBP_UNMAP | SVPD_LBP_WS16 | 10042 SVPD_LBP_WS10 | SVPD_LBP_RZ | SVPD_LBP_ANC_SUP; 10043 value = ctl_get_opt(&lun->be_lun->options, "provisioning_type"); 10044 if (value != NULL) { 10045 if (strcmp(value, "resource") == 0) 10046 lbp_ptr->prov_type = SVPD_LBP_RESOURCE; 10047 else if (strcmp(value, "thin") == 0) 10048 lbp_ptr->prov_type = SVPD_LBP_THIN; 10049 } else 10050 lbp_ptr->prov_type = SVPD_LBP_THIN; 10051 } 10052 10053 ctl_set_success(ctsio); 10054 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10055 ctsio->be_move_done = ctl_config_move_done; 10056 ctl_datamove((union ctl_io *)ctsio); 10057 return (CTL_RETVAL_COMPLETE); 10058} 10059 10060/* 10061 * INQUIRY with the EVPD bit set. 10062 */ 10063static int 10064ctl_inquiry_evpd(struct ctl_scsiio *ctsio) 10065{ 10066 struct ctl_lun *lun; 10067 struct scsi_inquiry *cdb; 10068 int alloc_len, retval; 10069 10070 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10071 cdb = (struct scsi_inquiry *)ctsio->cdb; 10072 alloc_len = scsi_2btoul(cdb->length); 10073 10074 switch (cdb->page_code) { 10075 case SVPD_SUPPORTED_PAGES: 10076 retval = ctl_inquiry_evpd_supported(ctsio, alloc_len); 10077 break; 10078 case SVPD_UNIT_SERIAL_NUMBER: 10079 retval = ctl_inquiry_evpd_serial(ctsio, alloc_len); 10080 break; 10081 case SVPD_DEVICE_ID: 10082 retval = ctl_inquiry_evpd_devid(ctsio, alloc_len); 10083 break; 10084 case SVPD_EXTENDED_INQUIRY_DATA: 10085 retval = ctl_inquiry_evpd_eid(ctsio, alloc_len); 10086 break; 10087 case SVPD_MODE_PAGE_POLICY: 10088 retval = ctl_inquiry_evpd_mpp(ctsio, alloc_len); 10089 break; 10090 case SVPD_SCSI_PORTS: 10091 retval = ctl_inquiry_evpd_scsi_ports(ctsio, alloc_len); 10092 break; 10093 case SVPD_SCSI_TPC: 10094 retval = ctl_inquiry_evpd_tpc(ctsio, alloc_len); 10095 break; 10096 case SVPD_BLOCK_LIMITS: 10097 if (lun == NULL || lun->be_lun->lun_type != T_DIRECT) 10098 goto err; 10099 retval = ctl_inquiry_evpd_block_limits(ctsio, alloc_len); 10100 break; 10101 case SVPD_BDC: 10102 if (lun == NULL || lun->be_lun->lun_type != T_DIRECT) 10103 goto err; 10104 retval = ctl_inquiry_evpd_bdc(ctsio, alloc_len); 10105 break; 10106 case SVPD_LBP: 10107 if (lun == NULL || lun->be_lun->lun_type != T_DIRECT) 10108 goto err; 10109 retval = ctl_inquiry_evpd_lbp(ctsio, alloc_len); 10110 break; 10111 default: 10112err: 10113 ctl_set_invalid_field(ctsio, 10114 /*sks_valid*/ 1, 10115 /*command*/ 1, 10116 /*field*/ 2, 10117 /*bit_valid*/ 0, 10118 /*bit*/ 0); 10119 ctl_done((union ctl_io *)ctsio); 10120 retval = CTL_RETVAL_COMPLETE; 10121 break; 10122 } 10123 10124 return (retval); 10125} 10126 10127/* 10128 * Standard INQUIRY data. 10129 */ 10130static int 10131ctl_inquiry_std(struct ctl_scsiio *ctsio) 10132{ 10133 struct scsi_inquiry_data *inq_ptr; 10134 struct scsi_inquiry *cdb; 10135 struct ctl_softc *softc = control_softc; 10136 struct ctl_port *port; 10137 struct ctl_lun *lun; 10138 char *val; 10139 uint32_t alloc_len, data_len; 10140 ctl_port_type port_type; 10141 10142 port = ctl_io_port(&ctsio->io_hdr); 10143 port_type = port->port_type; 10144 if (port_type == CTL_PORT_IOCTL || port_type == CTL_PORT_INTERNAL) 10145 port_type = CTL_PORT_SCSI; 10146 10147 lun = ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10148 cdb = (struct scsi_inquiry *)ctsio->cdb; 10149 alloc_len = scsi_2btoul(cdb->length); 10150 10151 /* 10152 * We malloc the full inquiry data size here and fill it 10153 * in. If the user only asks for less, we'll give him 10154 * that much. 10155 */ 10156 data_len = offsetof(struct scsi_inquiry_data, vendor_specific1); 10157 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 10158 inq_ptr = (struct scsi_inquiry_data *)ctsio->kern_data_ptr; 10159 ctsio->kern_sg_entries = 0; 10160 ctsio->kern_data_resid = 0; 10161 ctsio->kern_rel_offset = 0; 10162 10163 if (data_len < alloc_len) { 10164 ctsio->residual = alloc_len - data_len; 10165 ctsio->kern_data_len = data_len; 10166 ctsio->kern_total_len = data_len; 10167 } else { 10168 ctsio->residual = 0; 10169 ctsio->kern_data_len = alloc_len; 10170 ctsio->kern_total_len = alloc_len; 10171 } 10172 10173 if (lun != NULL) { 10174 if ((lun->flags & CTL_LUN_PRIMARY_SC) || 10175 softc->ha_link >= CTL_HA_LINK_UNKNOWN) { 10176 inq_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10177 lun->be_lun->lun_type; 10178 } else { 10179 inq_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | 10180 lun->be_lun->lun_type; 10181 } 10182 if (lun->flags & CTL_LUN_REMOVABLE) 10183 inq_ptr->dev_qual2 |= SID_RMB; 10184 } else 10185 inq_ptr->device = (SID_QUAL_BAD_LU << 5) | T_NODEVICE; 10186 10187 /* RMB in byte 2 is 0 */ 10188 inq_ptr->version = SCSI_REV_SPC5; 10189 10190 /* 10191 * According to SAM-3, even if a device only supports a single 10192 * level of LUN addressing, it should still set the HISUP bit: 10193 * 10194 * 4.9.1 Logical unit numbers overview 10195 * 10196 * All logical unit number formats described in this standard are 10197 * hierarchical in structure even when only a single level in that 10198 * hierarchy is used. The HISUP bit shall be set to one in the 10199 * standard INQUIRY data (see SPC-2) when any logical unit number 10200 * format described in this standard is used. Non-hierarchical 10201 * formats are outside the scope of this standard. 10202 * 10203 * Therefore we set the HiSup bit here. 10204 * 10205 * The response format is 2, per SPC-3. 10206 */ 10207 inq_ptr->response_format = SID_HiSup | 2; 10208 10209 inq_ptr->additional_length = data_len - 10210 (offsetof(struct scsi_inquiry_data, additional_length) + 1); 10211 CTL_DEBUG_PRINT(("additional_length = %d\n", 10212 inq_ptr->additional_length)); 10213 10214 inq_ptr->spc3_flags = SPC3_SID_3PC | SPC3_SID_TPGS_IMPLICIT; 10215 if (port_type == CTL_PORT_SCSI) 10216 inq_ptr->spc2_flags = SPC2_SID_ADDR16; 10217 inq_ptr->spc2_flags |= SPC2_SID_MultiP; 10218 inq_ptr->flags = SID_CmdQue; 10219 if (port_type == CTL_PORT_SCSI) 10220 inq_ptr->flags |= SID_WBus16 | SID_Sync; 10221 10222 /* 10223 * Per SPC-3, unused bytes in ASCII strings are filled with spaces. 10224 * We have 8 bytes for the vendor name, and 16 bytes for the device 10225 * name and 4 bytes for the revision. 10226 */ 10227 if (lun == NULL || (val = ctl_get_opt(&lun->be_lun->options, 10228 "vendor")) == NULL) { 10229 strncpy(inq_ptr->vendor, CTL_VENDOR, sizeof(inq_ptr->vendor)); 10230 } else { 10231 memset(inq_ptr->vendor, ' ', sizeof(inq_ptr->vendor)); 10232 strncpy(inq_ptr->vendor, val, 10233 min(sizeof(inq_ptr->vendor), strlen(val))); 10234 } 10235 if (lun == NULL) { 10236 strncpy(inq_ptr->product, CTL_DIRECT_PRODUCT, 10237 sizeof(inq_ptr->product)); 10238 } else if ((val = ctl_get_opt(&lun->be_lun->options, "product")) == NULL) { 10239 switch (lun->be_lun->lun_type) { 10240 case T_DIRECT: 10241 strncpy(inq_ptr->product, CTL_DIRECT_PRODUCT, 10242 sizeof(inq_ptr->product)); 10243 break; 10244 case T_PROCESSOR: 10245 strncpy(inq_ptr->product, CTL_PROCESSOR_PRODUCT, 10246 sizeof(inq_ptr->product)); 10247 break; 10248 case T_CDROM: 10249 strncpy(inq_ptr->product, CTL_CDROM_PRODUCT, 10250 sizeof(inq_ptr->product)); 10251 break; 10252 default: 10253 strncpy(inq_ptr->product, CTL_UNKNOWN_PRODUCT, 10254 sizeof(inq_ptr->product)); 10255 break; 10256 } 10257 } else { 10258 memset(inq_ptr->product, ' ', sizeof(inq_ptr->product)); 10259 strncpy(inq_ptr->product, val, 10260 min(sizeof(inq_ptr->product), strlen(val))); 10261 } 10262 10263 /* 10264 * XXX make this a macro somewhere so it automatically gets 10265 * incremented when we make changes. 10266 */ 10267 if (lun == NULL || (val = ctl_get_opt(&lun->be_lun->options, 10268 "revision")) == NULL) { 10269 strncpy(inq_ptr->revision, "0001", sizeof(inq_ptr->revision)); 10270 } else { 10271 memset(inq_ptr->revision, ' ', sizeof(inq_ptr->revision)); 10272 strncpy(inq_ptr->revision, val, 10273 min(sizeof(inq_ptr->revision), strlen(val))); 10274 } 10275 10276 /* 10277 * For parallel SCSI, we support double transition and single 10278 * transition clocking. We also support QAS (Quick Arbitration 10279 * and Selection) and Information Unit transfers on both the 10280 * control and array devices. 10281 */ 10282 if (port_type == CTL_PORT_SCSI) 10283 inq_ptr->spi3data = SID_SPI_CLOCK_DT_ST | SID_SPI_QAS | 10284 SID_SPI_IUS; 10285 10286 /* SAM-6 (no version claimed) */ 10287 scsi_ulto2b(0x00C0, inq_ptr->version1); 10288 /* SPC-5 (no version claimed) */ 10289 scsi_ulto2b(0x05C0, inq_ptr->version2); 10290 if (port_type == CTL_PORT_FC) { 10291 /* FCP-2 ANSI INCITS.350:2003 */ 10292 scsi_ulto2b(0x0917, inq_ptr->version3); 10293 } else if (port_type == CTL_PORT_SCSI) { 10294 /* SPI-4 ANSI INCITS.362:200x */ 10295 scsi_ulto2b(0x0B56, inq_ptr->version3); 10296 } else if (port_type == CTL_PORT_ISCSI) { 10297 /* iSCSI (no version claimed) */ 10298 scsi_ulto2b(0x0960, inq_ptr->version3); 10299 } else if (port_type == CTL_PORT_SAS) { 10300 /* SAS (no version claimed) */ 10301 scsi_ulto2b(0x0BE0, inq_ptr->version3); 10302 } 10303 10304 if (lun == NULL) { 10305 /* SBC-4 (no version claimed) */ 10306 scsi_ulto2b(0x0600, inq_ptr->version4); 10307 } else { 10308 switch (lun->be_lun->lun_type) { 10309 case T_DIRECT: 10310 /* SBC-4 (no version claimed) */ 10311 scsi_ulto2b(0x0600, inq_ptr->version4); 10312 break; 10313 case T_PROCESSOR: 10314 break; 10315 case T_CDROM: 10316 /* MMC-6 (no version claimed) */ 10317 scsi_ulto2b(0x04E0, inq_ptr->version4); 10318 break; 10319 default: 10320 break; 10321 } 10322 } 10323 10324 ctl_set_success(ctsio); 10325 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10326 ctsio->be_move_done = ctl_config_move_done; 10327 ctl_datamove((union ctl_io *)ctsio); 10328 return (CTL_RETVAL_COMPLETE); 10329} 10330 10331int 10332ctl_inquiry(struct ctl_scsiio *ctsio) 10333{ 10334 struct scsi_inquiry *cdb; 10335 int retval; 10336 10337 CTL_DEBUG_PRINT(("ctl_inquiry\n")); 10338 10339 cdb = (struct scsi_inquiry *)ctsio->cdb; 10340 if (cdb->byte2 & SI_EVPD) 10341 retval = ctl_inquiry_evpd(ctsio); 10342 else if (cdb->page_code == 0) 10343 retval = ctl_inquiry_std(ctsio); 10344 else { 10345 ctl_set_invalid_field(ctsio, 10346 /*sks_valid*/ 1, 10347 /*command*/ 1, 10348 /*field*/ 2, 10349 /*bit_valid*/ 0, 10350 /*bit*/ 0); 10351 ctl_done((union ctl_io *)ctsio); 10352 return (CTL_RETVAL_COMPLETE); 10353 } 10354 10355 return (retval); 10356} 10357 10358int 10359ctl_get_config(struct ctl_scsiio *ctsio) 10360{ 10361 struct scsi_get_config_header *hdr; 10362 struct scsi_get_config_feature *feature; 10363 struct scsi_get_config *cdb; 10364 struct ctl_lun *lun; 10365 uint32_t alloc_len, data_len; 10366 int rt, starting; 10367 10368 lun = ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10369 cdb = (struct scsi_get_config *)ctsio->cdb; 10370 rt = (cdb->rt & SGC_RT_MASK); 10371 starting = scsi_2btoul(cdb->starting_feature); 10372 alloc_len = scsi_2btoul(cdb->length); 10373 10374 data_len = sizeof(struct scsi_get_config_header) + 10375 sizeof(struct scsi_get_config_feature) + 8 + 10376 sizeof(struct scsi_get_config_feature) + 8 + 10377 sizeof(struct scsi_get_config_feature) + 4 + 10378 sizeof(struct scsi_get_config_feature) + 4 + 10379 sizeof(struct scsi_get_config_feature) + 8 + 10380 sizeof(struct scsi_get_config_feature) + 10381 sizeof(struct scsi_get_config_feature) + 4 + 10382 sizeof(struct scsi_get_config_feature) + 4 + 10383 sizeof(struct scsi_get_config_feature) + 4 + 10384 sizeof(struct scsi_get_config_feature) + 4 + 10385 sizeof(struct scsi_get_config_feature) + 4 + 10386 sizeof(struct scsi_get_config_feature) + 4; 10387 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 10388 ctsio->kern_sg_entries = 0; 10389 ctsio->kern_data_resid = 0; 10390 ctsio->kern_rel_offset = 0; 10391 10392 hdr = (struct scsi_get_config_header *)ctsio->kern_data_ptr; 10393 if (lun->flags & CTL_LUN_NO_MEDIA) 10394 scsi_ulto2b(0x0000, hdr->current_profile); 10395 else 10396 scsi_ulto2b(0x0010, hdr->current_profile); 10397 feature = (struct scsi_get_config_feature *)(hdr + 1); 10398 10399 if (starting > 0x003b) 10400 goto done; 10401 if (starting > 0x003a) 10402 goto f3b; 10403 if (starting > 0x002b) 10404 goto f3a; 10405 if (starting > 0x002a) 10406 goto f2b; 10407 if (starting > 0x001f) 10408 goto f2a; 10409 if (starting > 0x001e) 10410 goto f1f; 10411 if (starting > 0x001d) 10412 goto f1e; 10413 if (starting > 0x0010) 10414 goto f1d; 10415 if (starting > 0x0003) 10416 goto f10; 10417 if (starting > 0x0002) 10418 goto f3; 10419 if (starting > 0x0001) 10420 goto f2; 10421 if (starting > 0x0000) 10422 goto f1; 10423 10424 /* Profile List */ 10425 scsi_ulto2b(0x0000, feature->feature_code); 10426 feature->flags = SGC_F_PERSISTENT | SGC_F_CURRENT; 10427 feature->add_length = 8; 10428 scsi_ulto2b(0x0008, &feature->feature_data[0]); /* CD-ROM */ 10429 feature->feature_data[2] = 0x00; 10430 scsi_ulto2b(0x0010, &feature->feature_data[4]); /* DVD-ROM */ 10431 feature->feature_data[6] = 0x01; 10432 feature = (struct scsi_get_config_feature *) 10433 &feature->feature_data[feature->add_length]; 10434 10435f1: /* Core */ 10436 scsi_ulto2b(0x0001, feature->feature_code); 10437 feature->flags = 0x08 | SGC_F_PERSISTENT | SGC_F_CURRENT; 10438 feature->add_length = 8; 10439 scsi_ulto4b(0x00000000, &feature->feature_data[0]); 10440 feature->feature_data[4] = 0x03; 10441 feature = (struct scsi_get_config_feature *) 10442 &feature->feature_data[feature->add_length]; 10443 10444f2: /* Morphing */ 10445 scsi_ulto2b(0x0002, feature->feature_code); 10446 feature->flags = 0x04 | SGC_F_PERSISTENT | SGC_F_CURRENT; 10447 feature->add_length = 4; 10448 feature->feature_data[0] = 0x02; 10449 feature = (struct scsi_get_config_feature *) 10450 &feature->feature_data[feature->add_length]; 10451 10452f3: /* Removable Medium */ 10453 scsi_ulto2b(0x0003, feature->feature_code); 10454 feature->flags = 0x04 | SGC_F_PERSISTENT | SGC_F_CURRENT; 10455 feature->add_length = 4; 10456 feature->feature_data[0] = 0x39; 10457 feature = (struct scsi_get_config_feature *) 10458 &feature->feature_data[feature->add_length]; 10459 10460 if (rt == SGC_RT_CURRENT && (lun->flags & CTL_LUN_NO_MEDIA)) 10461 goto done; 10462 10463f10: /* Random Read */ 10464 scsi_ulto2b(0x0010, feature->feature_code); 10465 feature->flags = 0x00; 10466 if ((lun->flags & CTL_LUN_NO_MEDIA) == 0) 10467 feature->flags |= SGC_F_CURRENT; 10468 feature->add_length = 8; 10469 scsi_ulto4b(lun->be_lun->blocksize, &feature->feature_data[0]); 10470 scsi_ulto2b(1, &feature->feature_data[4]); 10471 feature->feature_data[6] = 0x00; 10472 feature = (struct scsi_get_config_feature *) 10473 &feature->feature_data[feature->add_length]; 10474 10475f1d: /* Multi-Read */ 10476 scsi_ulto2b(0x001D, feature->feature_code); 10477 feature->flags = 0x00; 10478 if ((lun->flags & CTL_LUN_NO_MEDIA) == 0) 10479 feature->flags |= SGC_F_CURRENT; 10480 feature->add_length = 0; 10481 feature = (struct scsi_get_config_feature *) 10482 &feature->feature_data[feature->add_length]; 10483 10484f1e: /* CD Read */ 10485 scsi_ulto2b(0x001E, feature->feature_code); 10486 feature->flags = 0x00; 10487 if ((lun->flags & CTL_LUN_NO_MEDIA) == 0) 10488 feature->flags |= SGC_F_CURRENT; 10489 feature->add_length = 4; 10490 feature->feature_data[0] = 0x00; 10491 feature = (struct scsi_get_config_feature *) 10492 &feature->feature_data[feature->add_length]; 10493 10494f1f: /* DVD Read */ 10495 scsi_ulto2b(0x001F, feature->feature_code); 10496 feature->flags = 0x08; 10497 if ((lun->flags & CTL_LUN_NO_MEDIA) == 0) 10498 feature->flags |= SGC_F_CURRENT; 10499 feature->add_length = 4; 10500 feature->feature_data[0] = 0x01; 10501 feature->feature_data[2] = 0x03; 10502 feature = (struct scsi_get_config_feature *) 10503 &feature->feature_data[feature->add_length]; 10504 10505f2a: /* DVD+RW */ 10506 scsi_ulto2b(0x002A, feature->feature_code); 10507 feature->flags = 0x04; 10508 if ((lun->flags & CTL_LUN_NO_MEDIA) == 0) 10509 feature->flags |= SGC_F_CURRENT; 10510 feature->add_length = 4; 10511 feature->feature_data[0] = 0x00; 10512 feature->feature_data[1] = 0x00; 10513 feature = (struct scsi_get_config_feature *) 10514 &feature->feature_data[feature->add_length]; 10515 10516f2b: /* DVD+R */ 10517 scsi_ulto2b(0x002B, feature->feature_code); 10518 feature->flags = 0x00; 10519 if ((lun->flags & CTL_LUN_NO_MEDIA) == 0) 10520 feature->flags |= SGC_F_CURRENT; 10521 feature->add_length = 4; 10522 feature->feature_data[0] = 0x00; 10523 feature = (struct scsi_get_config_feature *) 10524 &feature->feature_data[feature->add_length]; 10525 10526f3a: /* DVD+RW Dual Layer */ 10527 scsi_ulto2b(0x003A, feature->feature_code); 10528 feature->flags = 0x00; 10529 if ((lun->flags & CTL_LUN_NO_MEDIA) == 0) 10530 feature->flags |= SGC_F_CURRENT; 10531 feature->add_length = 4; 10532 feature->feature_data[0] = 0x00; 10533 feature->feature_data[1] = 0x00; 10534 feature = (struct scsi_get_config_feature *) 10535 &feature->feature_data[feature->add_length]; 10536 10537f3b: /* DVD+R Dual Layer */ 10538 scsi_ulto2b(0x003B, feature->feature_code); 10539 feature->flags = 0x00; 10540 if ((lun->flags & CTL_LUN_NO_MEDIA) == 0) 10541 feature->flags |= SGC_F_CURRENT; 10542 feature->add_length = 4; 10543 feature->feature_data[0] = 0x00; 10544 feature = (struct scsi_get_config_feature *) 10545 &feature->feature_data[feature->add_length]; 10546 10547done: 10548 data_len = (uint8_t *)feature - (uint8_t *)hdr; 10549 if (rt == SGC_RT_SPECIFIC && data_len > 4) { 10550 feature = (struct scsi_get_config_feature *)(hdr + 1); 10551 if (scsi_2btoul(feature->feature_code) == starting) 10552 feature = (struct scsi_get_config_feature *) 10553 &feature->feature_data[feature->add_length]; 10554 data_len = (uint8_t *)feature - (uint8_t *)hdr; 10555 } 10556 scsi_ulto4b(data_len - 4, hdr->data_length); 10557 if (data_len < alloc_len) { 10558 ctsio->residual = alloc_len - data_len; 10559 ctsio->kern_data_len = data_len; 10560 ctsio->kern_total_len = data_len; 10561 } else { 10562 ctsio->residual = 0; 10563 ctsio->kern_data_len = alloc_len; 10564 ctsio->kern_total_len = alloc_len; 10565 } 10566 10567 ctl_set_success(ctsio); 10568 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10569 ctsio->be_move_done = ctl_config_move_done; 10570 ctl_datamove((union ctl_io *)ctsio); 10571 return (CTL_RETVAL_COMPLETE); 10572} 10573 10574int 10575ctl_get_event_status(struct ctl_scsiio *ctsio) 10576{ 10577 struct scsi_get_event_status_header *hdr; 10578 struct scsi_get_event_status *cdb; 10579 struct ctl_lun *lun; 10580 uint32_t alloc_len, data_len; 10581 int notif_class; 10582 10583 lun = ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10584 cdb = (struct scsi_get_event_status *)ctsio->cdb; 10585 if ((cdb->byte2 & SGESN_POLLED) == 0) { 10586 ctl_set_invalid_field(ctsio, /*sks_valid*/ 1, /*command*/ 1, 10587 /*field*/ 1, /*bit_valid*/ 1, /*bit*/ 0); 10588 ctl_done((union ctl_io *)ctsio); 10589 return (CTL_RETVAL_COMPLETE); 10590 } 10591 notif_class = cdb->notif_class; 10592 alloc_len = scsi_2btoul(cdb->length); 10593 10594 data_len = sizeof(struct scsi_get_event_status_header); 10595 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 10596 ctsio->kern_sg_entries = 0; 10597 ctsio->kern_data_resid = 0; 10598 ctsio->kern_rel_offset = 0; 10599 10600 if (data_len < alloc_len) { 10601 ctsio->residual = alloc_len - data_len; 10602 ctsio->kern_data_len = data_len; 10603 ctsio->kern_total_len = data_len; 10604 } else { 10605 ctsio->residual = 0; 10606 ctsio->kern_data_len = alloc_len; 10607 ctsio->kern_total_len = alloc_len; 10608 } 10609 10610 hdr = (struct scsi_get_event_status_header *)ctsio->kern_data_ptr; 10611 scsi_ulto2b(0, hdr->descr_length); 10612 hdr->nea_class = SGESN_NEA; 10613 hdr->supported_class = 0; 10614 10615 ctl_set_success(ctsio); 10616 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10617 ctsio->be_move_done = ctl_config_move_done; 10618 ctl_datamove((union ctl_io *)ctsio); 10619 return (CTL_RETVAL_COMPLETE); 10620} 10621 10622int 10623ctl_mechanism_status(struct ctl_scsiio *ctsio) 10624{ 10625 struct scsi_mechanism_status_header *hdr; 10626 struct scsi_mechanism_status *cdb; 10627 struct ctl_lun *lun; 10628 uint32_t alloc_len, data_len; 10629 10630 lun = ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10631 cdb = (struct scsi_mechanism_status *)ctsio->cdb; 10632 alloc_len = scsi_2btoul(cdb->length); 10633 10634 data_len = sizeof(struct scsi_mechanism_status_header); 10635 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 10636 ctsio->kern_sg_entries = 0; 10637 ctsio->kern_data_resid = 0; 10638 ctsio->kern_rel_offset = 0; 10639 10640 if (data_len < alloc_len) { 10641 ctsio->residual = alloc_len - data_len; 10642 ctsio->kern_data_len = data_len; 10643 ctsio->kern_total_len = data_len; 10644 } else { 10645 ctsio->residual = 0; 10646 ctsio->kern_data_len = alloc_len; 10647 ctsio->kern_total_len = alloc_len; 10648 } 10649 10650 hdr = (struct scsi_mechanism_status_header *)ctsio->kern_data_ptr; 10651 hdr->state1 = 0x00; 10652 hdr->state2 = 0xe0; 10653 scsi_ulto3b(0, hdr->lba); 10654 hdr->slots_num = 0; 10655 scsi_ulto2b(0, hdr->slots_length); 10656 10657 ctl_set_success(ctsio); 10658 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10659 ctsio->be_move_done = ctl_config_move_done; 10660 ctl_datamove((union ctl_io *)ctsio); 10661 return (CTL_RETVAL_COMPLETE); 10662} 10663 10664static void 10665ctl_ultomsf(uint32_t lba, uint8_t *buf) 10666{ 10667 10668 lba += 150; 10669 buf[0] = 0; 10670 buf[1] = bin2bcd((lba / 75) / 60); 10671 buf[2] = bin2bcd((lba / 75) % 60); 10672 buf[3] = bin2bcd(lba % 75); 10673} 10674 10675int 10676ctl_read_toc(struct ctl_scsiio *ctsio) 10677{ 10678 struct scsi_read_toc_hdr *hdr; 10679 struct scsi_read_toc_type01_descr *descr; 10680 struct scsi_read_toc *cdb; 10681 struct ctl_lun *lun; 10682 uint32_t alloc_len, data_len; 10683 int format, msf; 10684 10685 lun = ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10686 cdb = (struct scsi_read_toc *)ctsio->cdb; 10687 msf = (cdb->byte2 & CD_MSF) != 0; 10688 format = cdb->format; 10689 alloc_len = scsi_2btoul(cdb->data_len); 10690 10691 data_len = sizeof(struct scsi_read_toc_hdr); 10692 if (format == 0) 10693 data_len += 2 * sizeof(struct scsi_read_toc_type01_descr); 10694 else 10695 data_len += sizeof(struct scsi_read_toc_type01_descr); 10696 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 10697 ctsio->kern_sg_entries = 0; 10698 ctsio->kern_data_resid = 0; 10699 ctsio->kern_rel_offset = 0; 10700 10701 if (data_len < alloc_len) { 10702 ctsio->residual = alloc_len - data_len; 10703 ctsio->kern_data_len = data_len; 10704 ctsio->kern_total_len = data_len; 10705 } else { 10706 ctsio->residual = 0; 10707 ctsio->kern_data_len = alloc_len; 10708 ctsio->kern_total_len = alloc_len; 10709 } 10710 10711 hdr = (struct scsi_read_toc_hdr *)ctsio->kern_data_ptr; 10712 if (format == 0) { 10713 scsi_ulto2b(0x12, hdr->data_length); 10714 hdr->first = 1; 10715 hdr->last = 1; 10716 descr = (struct scsi_read_toc_type01_descr *)(hdr + 1); 10717 descr->addr_ctl = 0x14; 10718 descr->track_number = 1; 10719 if (msf) 10720 ctl_ultomsf(0, descr->track_start); 10721 else 10722 scsi_ulto4b(0, descr->track_start); 10723 descr++; 10724 descr->addr_ctl = 0x14; 10725 descr->track_number = 0xaa; 10726 if (msf) 10727 ctl_ultomsf(lun->be_lun->maxlba+1, descr->track_start); 10728 else 10729 scsi_ulto4b(lun->be_lun->maxlba+1, descr->track_start); 10730 } else { 10731 scsi_ulto2b(0x0a, hdr->data_length); 10732 hdr->first = 1; 10733 hdr->last = 1; 10734 descr = (struct scsi_read_toc_type01_descr *)(hdr + 1); 10735 descr->addr_ctl = 0x14; 10736 descr->track_number = 1; 10737 if (msf) 10738 ctl_ultomsf(0, descr->track_start); 10739 else 10740 scsi_ulto4b(0, descr->track_start); 10741 } 10742 10743 ctl_set_success(ctsio); 10744 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10745 ctsio->be_move_done = ctl_config_move_done; 10746 ctl_datamove((union ctl_io *)ctsio); 10747 return (CTL_RETVAL_COMPLETE); 10748} 10749 10750/* 10751 * For known CDB types, parse the LBA and length. 10752 */ 10753static int 10754ctl_get_lba_len(union ctl_io *io, uint64_t *lba, uint64_t *len) 10755{ 10756 if (io->io_hdr.io_type != CTL_IO_SCSI) 10757 return (1); 10758 10759 switch (io->scsiio.cdb[0]) { 10760 case COMPARE_AND_WRITE: { 10761 struct scsi_compare_and_write *cdb; 10762 10763 cdb = (struct scsi_compare_and_write *)io->scsiio.cdb; 10764 10765 *lba = scsi_8btou64(cdb->addr); 10766 *len = cdb->length; 10767 break; 10768 } 10769 case READ_6: 10770 case WRITE_6: { 10771 struct scsi_rw_6 *cdb; 10772 10773 cdb = (struct scsi_rw_6 *)io->scsiio.cdb; 10774 10775 *lba = scsi_3btoul(cdb->addr); 10776 /* only 5 bits are valid in the most significant address byte */ 10777 *lba &= 0x1fffff; 10778 *len = cdb->length; 10779 break; 10780 } 10781 case READ_10: 10782 case WRITE_10: { 10783 struct scsi_rw_10 *cdb; 10784 10785 cdb = (struct scsi_rw_10 *)io->scsiio.cdb; 10786 10787 *lba = scsi_4btoul(cdb->addr); 10788 *len = scsi_2btoul(cdb->length); 10789 break; 10790 } 10791 case WRITE_VERIFY_10: { 10792 struct scsi_write_verify_10 *cdb; 10793 10794 cdb = (struct scsi_write_verify_10 *)io->scsiio.cdb; 10795 10796 *lba = scsi_4btoul(cdb->addr); 10797 *len = scsi_2btoul(cdb->length); 10798 break; 10799 } 10800 case READ_12: 10801 case WRITE_12: { 10802 struct scsi_rw_12 *cdb; 10803 10804 cdb = (struct scsi_rw_12 *)io->scsiio.cdb; 10805 10806 *lba = scsi_4btoul(cdb->addr); 10807 *len = scsi_4btoul(cdb->length); 10808 break; 10809 } 10810 case WRITE_VERIFY_12: { 10811 struct scsi_write_verify_12 *cdb; 10812 10813 cdb = (struct scsi_write_verify_12 *)io->scsiio.cdb; 10814 10815 *lba = scsi_4btoul(cdb->addr); 10816 *len = scsi_4btoul(cdb->length); 10817 break; 10818 } 10819 case READ_16: 10820 case WRITE_16: { 10821 struct scsi_rw_16 *cdb; 10822 10823 cdb = (struct scsi_rw_16 *)io->scsiio.cdb; 10824 10825 *lba = scsi_8btou64(cdb->addr); 10826 *len = scsi_4btoul(cdb->length); 10827 break; 10828 } 10829 case WRITE_ATOMIC_16: { 10830 struct scsi_write_atomic_16 *cdb; 10831 10832 cdb = (struct scsi_write_atomic_16 *)io->scsiio.cdb; 10833 10834 *lba = scsi_8btou64(cdb->addr); 10835 *len = scsi_2btoul(cdb->length); 10836 break; 10837 } 10838 case WRITE_VERIFY_16: { 10839 struct scsi_write_verify_16 *cdb; 10840 10841 cdb = (struct scsi_write_verify_16 *)io->scsiio.cdb; 10842 10843 *lba = scsi_8btou64(cdb->addr); 10844 *len = scsi_4btoul(cdb->length); 10845 break; 10846 } 10847 case WRITE_SAME_10: { 10848 struct scsi_write_same_10 *cdb; 10849 10850 cdb = (struct scsi_write_same_10 *)io->scsiio.cdb; 10851 10852 *lba = scsi_4btoul(cdb->addr); 10853 *len = scsi_2btoul(cdb->length); 10854 break; 10855 } 10856 case WRITE_SAME_16: { 10857 struct scsi_write_same_16 *cdb; 10858 10859 cdb = (struct scsi_write_same_16 *)io->scsiio.cdb; 10860 10861 *lba = scsi_8btou64(cdb->addr); 10862 *len = scsi_4btoul(cdb->length); 10863 break; 10864 } 10865 case VERIFY_10: { 10866 struct scsi_verify_10 *cdb; 10867 10868 cdb = (struct scsi_verify_10 *)io->scsiio.cdb; 10869 10870 *lba = scsi_4btoul(cdb->addr); 10871 *len = scsi_2btoul(cdb->length); 10872 break; 10873 } 10874 case VERIFY_12: { 10875 struct scsi_verify_12 *cdb; 10876 10877 cdb = (struct scsi_verify_12 *)io->scsiio.cdb; 10878 10879 *lba = scsi_4btoul(cdb->addr); 10880 *len = scsi_4btoul(cdb->length); 10881 break; 10882 } 10883 case VERIFY_16: { 10884 struct scsi_verify_16 *cdb; 10885 10886 cdb = (struct scsi_verify_16 *)io->scsiio.cdb; 10887 10888 *lba = scsi_8btou64(cdb->addr); 10889 *len = scsi_4btoul(cdb->length); 10890 break; 10891 } 10892 case UNMAP: { 10893 *lba = 0; 10894 *len = UINT64_MAX; 10895 break; 10896 } 10897 case SERVICE_ACTION_IN: { /* GET LBA STATUS */ 10898 struct scsi_get_lba_status *cdb; 10899 10900 cdb = (struct scsi_get_lba_status *)io->scsiio.cdb; 10901 *lba = scsi_8btou64(cdb->addr); 10902 *len = UINT32_MAX; 10903 break; 10904 } 10905 default: 10906 return (1); 10907 break; /* NOTREACHED */ 10908 } 10909 10910 return (0); 10911} 10912 10913static ctl_action 10914ctl_extent_check_lba(uint64_t lba1, uint64_t len1, uint64_t lba2, uint64_t len2, 10915 bool seq) 10916{ 10917 uint64_t endlba1, endlba2; 10918 10919 endlba1 = lba1 + len1 - (seq ? 0 : 1); 10920 endlba2 = lba2 + len2 - 1; 10921 10922 if ((endlba1 < lba2) || (endlba2 < lba1)) 10923 return (CTL_ACTION_PASS); 10924 else 10925 return (CTL_ACTION_BLOCK); 10926} 10927 10928static int 10929ctl_extent_check_unmap(union ctl_io *io, uint64_t lba2, uint64_t len2) 10930{ 10931 struct ctl_ptr_len_flags *ptrlen; 10932 struct scsi_unmap_desc *buf, *end, *range; 10933 uint64_t lba; 10934 uint32_t len; 10935 10936 /* If not UNMAP -- go other way. */ 10937 if (io->io_hdr.io_type != CTL_IO_SCSI || 10938 io->scsiio.cdb[0] != UNMAP) 10939 return (CTL_ACTION_ERROR); 10940 10941 /* If UNMAP without data -- block and wait for data. */ 10942 ptrlen = (struct ctl_ptr_len_flags *) 10943 &io->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 10944 if ((io->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0 || 10945 ptrlen->ptr == NULL) 10946 return (CTL_ACTION_BLOCK); 10947 10948 /* UNMAP with data -- check for collision. */ 10949 buf = (struct scsi_unmap_desc *)ptrlen->ptr; 10950 end = buf + ptrlen->len / sizeof(*buf); 10951 for (range = buf; range < end; range++) { 10952 lba = scsi_8btou64(range->lba); 10953 len = scsi_4btoul(range->length); 10954 if ((lba < lba2 + len2) && (lba + len > lba2)) 10955 return (CTL_ACTION_BLOCK); 10956 } 10957 return (CTL_ACTION_PASS); 10958} 10959 10960static ctl_action 10961ctl_extent_check(union ctl_io *io1, union ctl_io *io2, bool seq) 10962{ 10963 uint64_t lba1, lba2; 10964 uint64_t len1, len2; 10965 int retval; 10966 10967 if (ctl_get_lba_len(io2, &lba2, &len2) != 0) 10968 return (CTL_ACTION_ERROR); 10969 10970 retval = ctl_extent_check_unmap(io1, lba2, len2); 10971 if (retval != CTL_ACTION_ERROR) 10972 return (retval); 10973 10974 if (ctl_get_lba_len(io1, &lba1, &len1) != 0) 10975 return (CTL_ACTION_ERROR); 10976 10977 if (io1->io_hdr.flags & CTL_FLAG_SERSEQ_DONE) 10978 seq = FALSE; 10979 return (ctl_extent_check_lba(lba1, len1, lba2, len2, seq)); 10980} 10981 10982static ctl_action 10983ctl_extent_check_seq(union ctl_io *io1, union ctl_io *io2) 10984{ 10985 uint64_t lba1, lba2; 10986 uint64_t len1, len2; 10987 10988 if (io1->io_hdr.flags & CTL_FLAG_SERSEQ_DONE) 10989 return (CTL_ACTION_PASS); 10990 if (ctl_get_lba_len(io1, &lba1, &len1) != 0) 10991 return (CTL_ACTION_ERROR); 10992 if (ctl_get_lba_len(io2, &lba2, &len2) != 0) 10993 return (CTL_ACTION_ERROR); 10994 10995 if (lba1 + len1 == lba2) 10996 return (CTL_ACTION_BLOCK); 10997 return (CTL_ACTION_PASS); 10998} 10999 11000static ctl_action 11001ctl_check_for_blockage(struct ctl_lun *lun, union ctl_io *pending_io, 11002 union ctl_io *ooa_io) 11003{ 11004 const struct ctl_cmd_entry *pending_entry, *ooa_entry; 11005 const ctl_serialize_action *serialize_row; 11006 11007 /* 11008 * The initiator attempted multiple untagged commands at the same 11009 * time. Can't do that. 11010 */ 11011 if ((pending_io->scsiio.tag_type == CTL_TAG_UNTAGGED) 11012 && (ooa_io->scsiio.tag_type == CTL_TAG_UNTAGGED) 11013 && ((pending_io->io_hdr.nexus.targ_port == 11014 ooa_io->io_hdr.nexus.targ_port) 11015 && (pending_io->io_hdr.nexus.initid == 11016 ooa_io->io_hdr.nexus.initid)) 11017 && ((ooa_io->io_hdr.flags & (CTL_FLAG_ABORT | 11018 CTL_FLAG_STATUS_SENT)) == 0)) 11019 return (CTL_ACTION_OVERLAP); 11020 11021 /* 11022 * The initiator attempted to send multiple tagged commands with 11023 * the same ID. (It's fine if different initiators have the same 11024 * tag ID.) 11025 * 11026 * Even if all of those conditions are true, we don't kill the I/O 11027 * if the command ahead of us has been aborted. We won't end up 11028 * sending it to the FETD, and it's perfectly legal to resend a 11029 * command with the same tag number as long as the previous 11030 * instance of this tag number has been aborted somehow. 11031 */ 11032 if ((pending_io->scsiio.tag_type != CTL_TAG_UNTAGGED) 11033 && (ooa_io->scsiio.tag_type != CTL_TAG_UNTAGGED) 11034 && (pending_io->scsiio.tag_num == ooa_io->scsiio.tag_num) 11035 && ((pending_io->io_hdr.nexus.targ_port == 11036 ooa_io->io_hdr.nexus.targ_port) 11037 && (pending_io->io_hdr.nexus.initid == 11038 ooa_io->io_hdr.nexus.initid)) 11039 && ((ooa_io->io_hdr.flags & (CTL_FLAG_ABORT | 11040 CTL_FLAG_STATUS_SENT)) == 0)) 11041 return (CTL_ACTION_OVERLAP_TAG); 11042 11043 /* 11044 * If we get a head of queue tag, SAM-3 says that we should 11045 * immediately execute it. 11046 * 11047 * What happens if this command would normally block for some other 11048 * reason? e.g. a request sense with a head of queue tag 11049 * immediately after a write. Normally that would block, but this 11050 * will result in its getting executed immediately... 11051 * 11052 * We currently return "pass" instead of "skip", so we'll end up 11053 * going through the rest of the queue to check for overlapped tags. 11054 * 11055 * XXX KDM check for other types of blockage first?? 11056 */ 11057 if (pending_io->scsiio.tag_type == CTL_TAG_HEAD_OF_QUEUE) 11058 return (CTL_ACTION_PASS); 11059 11060 /* 11061 * Ordered tags have to block until all items ahead of them 11062 * have completed. If we get called with an ordered tag, we always 11063 * block, if something else is ahead of us in the queue. 11064 */ 11065 if (pending_io->scsiio.tag_type == CTL_TAG_ORDERED) 11066 return (CTL_ACTION_BLOCK); 11067 11068 /* 11069 * Simple tags get blocked until all head of queue and ordered tags 11070 * ahead of them have completed. I'm lumping untagged commands in 11071 * with simple tags here. XXX KDM is that the right thing to do? 11072 */ 11073 if (((pending_io->scsiio.tag_type == CTL_TAG_UNTAGGED) 11074 || (pending_io->scsiio.tag_type == CTL_TAG_SIMPLE)) 11075 && ((ooa_io->scsiio.tag_type == CTL_TAG_HEAD_OF_QUEUE) 11076 || (ooa_io->scsiio.tag_type == CTL_TAG_ORDERED))) 11077 return (CTL_ACTION_BLOCK); 11078 11079 pending_entry = ctl_get_cmd_entry(&pending_io->scsiio, NULL); 11080 KASSERT(pending_entry->seridx < CTL_SERIDX_COUNT, 11081 ("%s: Invalid seridx %d for pending CDB %02x %02x @ %p", 11082 __func__, pending_entry->seridx, pending_io->scsiio.cdb[0], 11083 pending_io->scsiio.cdb[1], pending_io)); 11084 ooa_entry = ctl_get_cmd_entry(&ooa_io->scsiio, NULL); 11085 if (ooa_entry->seridx == CTL_SERIDX_INVLD) 11086 return (CTL_ACTION_PASS); /* Unsupported command in OOA queue */ 11087 KASSERT(ooa_entry->seridx < CTL_SERIDX_COUNT, 11088 ("%s: Invalid seridx %d for ooa CDB %02x %02x @ %p", 11089 __func__, ooa_entry->seridx, ooa_io->scsiio.cdb[0], 11090 ooa_io->scsiio.cdb[1], ooa_io)); 11091 11092 serialize_row = ctl_serialize_table[ooa_entry->seridx]; 11093 11094 switch (serialize_row[pending_entry->seridx]) { 11095 case CTL_SER_BLOCK: 11096 return (CTL_ACTION_BLOCK); 11097 case CTL_SER_EXTENT: 11098 return (ctl_extent_check(ooa_io, pending_io, 11099 (lun->be_lun && lun->be_lun->serseq == CTL_LUN_SERSEQ_ON))); 11100 case CTL_SER_EXTENTOPT: 11101 if ((lun->MODE_CTRL.queue_flags & SCP_QUEUE_ALG_MASK) != 11102 SCP_QUEUE_ALG_UNRESTRICTED) 11103 return (ctl_extent_check(ooa_io, pending_io, 11104 (lun->be_lun && 11105 lun->be_lun->serseq == CTL_LUN_SERSEQ_ON))); 11106 return (CTL_ACTION_PASS); 11107 case CTL_SER_EXTENTSEQ: 11108 if (lun->be_lun && lun->be_lun->serseq != CTL_LUN_SERSEQ_OFF) 11109 return (ctl_extent_check_seq(ooa_io, pending_io)); 11110 return (CTL_ACTION_PASS); 11111 case CTL_SER_PASS: 11112 return (CTL_ACTION_PASS); 11113 case CTL_SER_BLOCKOPT: 11114 if ((lun->MODE_CTRL.queue_flags & SCP_QUEUE_ALG_MASK) != 11115 SCP_QUEUE_ALG_UNRESTRICTED) 11116 return (CTL_ACTION_BLOCK); 11117 return (CTL_ACTION_PASS); 11118 case CTL_SER_SKIP: 11119 return (CTL_ACTION_SKIP); 11120 default: 11121 panic("%s: Invalid serialization value %d for %d => %d", 11122 __func__, serialize_row[pending_entry->seridx], 11123 pending_entry->seridx, ooa_entry->seridx); 11124 } 11125 11126 return (CTL_ACTION_ERROR); 11127} 11128 11129/* 11130 * Check for blockage or overlaps against the OOA (Order Of Arrival) queue. 11131 * Assumptions: 11132 * - pending_io is generally either incoming, or on the blocked queue 11133 * - starting I/O is the I/O we want to start the check with. 11134 */ 11135static ctl_action 11136ctl_check_ooa(struct ctl_lun *lun, union ctl_io *pending_io, 11137 union ctl_io *starting_io) 11138{ 11139 union ctl_io *ooa_io; 11140 ctl_action action; 11141 11142 mtx_assert(&lun->lun_lock, MA_OWNED); 11143 11144 /* 11145 * Run back along the OOA queue, starting with the current 11146 * blocked I/O and going through every I/O before it on the 11147 * queue. If starting_io is NULL, we'll just end up returning 11148 * CTL_ACTION_PASS. 11149 */ 11150 for (ooa_io = starting_io; ooa_io != NULL; 11151 ooa_io = (union ctl_io *)TAILQ_PREV(&ooa_io->io_hdr, ctl_ooaq, 11152 ooa_links)){ 11153 11154 /* 11155 * This routine just checks to see whether 11156 * cur_blocked is blocked by ooa_io, which is ahead 11157 * of it in the queue. It doesn't queue/dequeue 11158 * cur_blocked. 11159 */ 11160 action = ctl_check_for_blockage(lun, pending_io, ooa_io); 11161 switch (action) { 11162 case CTL_ACTION_BLOCK: 11163 case CTL_ACTION_OVERLAP: 11164 case CTL_ACTION_OVERLAP_TAG: 11165 case CTL_ACTION_SKIP: 11166 case CTL_ACTION_ERROR: 11167 return (action); 11168 break; /* NOTREACHED */ 11169 case CTL_ACTION_PASS: 11170 break; 11171 default: 11172 panic("%s: Invalid action %d\n", __func__, action); 11173 } 11174 } 11175 11176 return (CTL_ACTION_PASS); 11177} 11178 11179/* 11180 * Assumptions: 11181 * - An I/O has just completed, and has been removed from the per-LUN OOA 11182 * queue, so some items on the blocked queue may now be unblocked. 11183 */ 11184static int 11185ctl_check_blocked(struct ctl_lun *lun) 11186{ 11187 struct ctl_softc *softc = lun->ctl_softc; 11188 union ctl_io *cur_blocked, *next_blocked; 11189 11190 mtx_assert(&lun->lun_lock, MA_OWNED); 11191 11192 /* 11193 * Run forward from the head of the blocked queue, checking each 11194 * entry against the I/Os prior to it on the OOA queue to see if 11195 * there is still any blockage. 11196 * 11197 * We cannot use the TAILQ_FOREACH() macro, because it can't deal 11198 * with our removing a variable on it while it is traversing the 11199 * list. 11200 */ 11201 for (cur_blocked = (union ctl_io *)TAILQ_FIRST(&lun->blocked_queue); 11202 cur_blocked != NULL; cur_blocked = next_blocked) { 11203 union ctl_io *prev_ooa; 11204 ctl_action action; 11205 11206 next_blocked = (union ctl_io *)TAILQ_NEXT(&cur_blocked->io_hdr, 11207 blocked_links); 11208 11209 prev_ooa = (union ctl_io *)TAILQ_PREV(&cur_blocked->io_hdr, 11210 ctl_ooaq, ooa_links); 11211 11212 /* 11213 * If cur_blocked happens to be the first item in the OOA 11214 * queue now, prev_ooa will be NULL, and the action 11215 * returned will just be CTL_ACTION_PASS. 11216 */ 11217 action = ctl_check_ooa(lun, cur_blocked, prev_ooa); 11218 11219 switch (action) { 11220 case CTL_ACTION_BLOCK: 11221 /* Nothing to do here, still blocked */ 11222 break; 11223 case CTL_ACTION_OVERLAP: 11224 case CTL_ACTION_OVERLAP_TAG: 11225 /* 11226 * This shouldn't happen! In theory we've already 11227 * checked this command for overlap... 11228 */ 11229 break; 11230 case CTL_ACTION_PASS: 11231 case CTL_ACTION_SKIP: { 11232 const struct ctl_cmd_entry *entry; 11233 11234 /* 11235 * The skip case shouldn't happen, this transaction 11236 * should have never made it onto the blocked queue. 11237 */ 11238 /* 11239 * This I/O is no longer blocked, we can remove it 11240 * from the blocked queue. Since this is a TAILQ 11241 * (doubly linked list), we can do O(1) removals 11242 * from any place on the list. 11243 */ 11244 TAILQ_REMOVE(&lun->blocked_queue, &cur_blocked->io_hdr, 11245 blocked_links); 11246 cur_blocked->io_hdr.flags &= ~CTL_FLAG_BLOCKED; 11247 11248 if ((softc->ha_mode != CTL_HA_MODE_XFER) && 11249 (cur_blocked->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)){ 11250 /* 11251 * Need to send IO back to original side to 11252 * run 11253 */ 11254 union ctl_ha_msg msg_info; 11255 11256 cur_blocked->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 11257 msg_info.hdr.original_sc = 11258 cur_blocked->io_hdr.original_sc; 11259 msg_info.hdr.serializing_sc = cur_blocked; 11260 msg_info.hdr.msg_type = CTL_MSG_R2R; 11261 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 11262 sizeof(msg_info.hdr), M_NOWAIT); 11263 break; 11264 } 11265 entry = ctl_get_cmd_entry(&cur_blocked->scsiio, NULL); 11266 11267 /* 11268 * Check this I/O for LUN state changes that may 11269 * have happened while this command was blocked. 11270 * The LUN state may have been changed by a command 11271 * ahead of us in the queue, so we need to re-check 11272 * for any states that can be caused by SCSI 11273 * commands. 11274 */ 11275 if (ctl_scsiio_lun_check(lun, entry, 11276 &cur_blocked->scsiio) == 0) { 11277 cur_blocked->io_hdr.flags |= 11278 CTL_FLAG_IS_WAS_ON_RTR; 11279 ctl_enqueue_rtr(cur_blocked); 11280 } else 11281 ctl_done(cur_blocked); 11282 break; 11283 } 11284 default: 11285 /* 11286 * This probably shouldn't happen -- we shouldn't 11287 * get CTL_ACTION_ERROR, or anything else. 11288 */ 11289 break; 11290 } 11291 } 11292 11293 return (CTL_RETVAL_COMPLETE); 11294} 11295 11296/* 11297 * This routine (with one exception) checks LUN flags that can be set by 11298 * commands ahead of us in the OOA queue. These flags have to be checked 11299 * when a command initially comes in, and when we pull a command off the 11300 * blocked queue and are preparing to execute it. The reason we have to 11301 * check these flags for commands on the blocked queue is that the LUN 11302 * state may have been changed by a command ahead of us while we're on the 11303 * blocked queue. 11304 * 11305 * Ordering is somewhat important with these checks, so please pay 11306 * careful attention to the placement of any new checks. 11307 */ 11308static int 11309ctl_scsiio_lun_check(struct ctl_lun *lun, 11310 const struct ctl_cmd_entry *entry, struct ctl_scsiio *ctsio) 11311{ 11312 struct ctl_softc *softc = lun->ctl_softc; 11313 int retval; 11314 uint32_t residx; 11315 11316 retval = 0; 11317 11318 mtx_assert(&lun->lun_lock, MA_OWNED); 11319 11320 /* 11321 * If this shelf is a secondary shelf controller, we may have to 11322 * reject some commands disallowed by HA mode and link state. 11323 */ 11324 if ((lun->flags & CTL_LUN_PRIMARY_SC) == 0) { 11325 if (softc->ha_link == CTL_HA_LINK_OFFLINE && 11326 (entry->flags & CTL_CMD_FLAG_OK_ON_UNAVAIL) == 0) { 11327 ctl_set_lun_unavail(ctsio); 11328 retval = 1; 11329 goto bailout; 11330 } 11331 if ((lun->flags & CTL_LUN_PEER_SC_PRIMARY) == 0 && 11332 (entry->flags & CTL_CMD_FLAG_OK_ON_UNAVAIL) == 0) { 11333 ctl_set_lun_transit(ctsio); 11334 retval = 1; 11335 goto bailout; 11336 } 11337 if (softc->ha_mode == CTL_HA_MODE_ACT_STBY && 11338 (entry->flags & CTL_CMD_FLAG_OK_ON_STANDBY) == 0) { 11339 ctl_set_lun_standby(ctsio); 11340 retval = 1; 11341 goto bailout; 11342 } 11343 11344 /* The rest of checks are only done on executing side */ 11345 if (softc->ha_mode == CTL_HA_MODE_XFER) 11346 goto bailout; 11347 } 11348 11349 if (entry->pattern & CTL_LUN_PAT_WRITE) { 11350 if (lun->be_lun && 11351 lun->be_lun->flags & CTL_LUN_FLAG_READONLY) { 11352 ctl_set_hw_write_protected(ctsio); 11353 retval = 1; 11354 goto bailout; 11355 } 11356 if ((lun->MODE_CTRL.eca_and_aen & SCP_SWP) != 0) { 11357 ctl_set_sense(ctsio, /*current_error*/ 1, 11358 /*sense_key*/ SSD_KEY_DATA_PROTECT, 11359 /*asc*/ 0x27, /*ascq*/ 0x02, SSD_ELEM_NONE); 11360 retval = 1; 11361 goto bailout; 11362 } 11363 } 11364 11365 /* 11366 * Check for a reservation conflict. If this command isn't allowed 11367 * even on reserved LUNs, and if this initiator isn't the one who 11368 * reserved us, reject the command with a reservation conflict. 11369 */ 11370 residx = ctl_get_initindex(&ctsio->io_hdr.nexus); 11371 if ((lun->flags & CTL_LUN_RESERVED) 11372 && ((entry->flags & CTL_CMD_FLAG_ALLOW_ON_RESV) == 0)) { 11373 if (lun->res_idx != residx) { 11374 ctl_set_reservation_conflict(ctsio); 11375 retval = 1; 11376 goto bailout; 11377 } 11378 } 11379 11380 if ((lun->flags & CTL_LUN_PR_RESERVED) == 0 || 11381 (entry->flags & CTL_CMD_FLAG_ALLOW_ON_PR_RESV)) { 11382 /* No reservation or command is allowed. */; 11383 } else if ((entry->flags & CTL_CMD_FLAG_ALLOW_ON_PR_WRESV) && 11384 (lun->pr_res_type == SPR_TYPE_WR_EX || 11385 lun->pr_res_type == SPR_TYPE_WR_EX_RO || 11386 lun->pr_res_type == SPR_TYPE_WR_EX_AR)) { 11387 /* The command is allowed for Write Exclusive resv. */; 11388 } else { 11389 /* 11390 * if we aren't registered or it's a res holder type 11391 * reservation and this isn't the res holder then set a 11392 * conflict. 11393 */ 11394 if (ctl_get_prkey(lun, residx) == 0 || 11395 (residx != lun->pr_res_idx && lun->pr_res_type < 4)) { 11396 ctl_set_reservation_conflict(ctsio); 11397 retval = 1; 11398 goto bailout; 11399 } 11400 } 11401 11402 if ((entry->flags & CTL_CMD_FLAG_OK_ON_NO_MEDIA) == 0) { 11403 if (lun->flags & CTL_LUN_EJECTED) 11404 ctl_set_lun_ejected(ctsio); 11405 else if (lun->flags & CTL_LUN_NO_MEDIA) { 11406 if (lun->flags & CTL_LUN_REMOVABLE) 11407 ctl_set_lun_no_media(ctsio); 11408 else 11409 ctl_set_lun_int_reqd(ctsio); 11410 } else if (lun->flags & CTL_LUN_STOPPED) 11411 ctl_set_lun_stopped(ctsio); 11412 else 11413 goto bailout; 11414 retval = 1; 11415 goto bailout; 11416 } 11417 11418bailout: 11419 return (retval); 11420} 11421 11422static void 11423ctl_failover_io(union ctl_io *io, int have_lock) 11424{ 11425 ctl_set_busy(&io->scsiio); 11426 ctl_done(io); 11427} 11428 11429static void 11430ctl_failover_lun(union ctl_io *rio) 11431{ 11432 struct ctl_softc *softc = control_softc; 11433 struct ctl_lun *lun; 11434 struct ctl_io_hdr *io, *next_io; 11435 uint32_t targ_lun; 11436 11437 targ_lun = rio->io_hdr.nexus.targ_mapped_lun; 11438 CTL_DEBUG_PRINT(("FAILOVER for lun %ju\n", targ_lun)); 11439 11440 /* Find and lock the LUN. */ 11441 mtx_lock(&softc->ctl_lock); 11442 if ((targ_lun < CTL_MAX_LUNS) && 11443 ((lun = softc->ctl_luns[targ_lun]) != NULL)) { 11444 mtx_lock(&lun->lun_lock); 11445 mtx_unlock(&softc->ctl_lock); 11446 if (lun->flags & CTL_LUN_DISABLED) { 11447 mtx_unlock(&lun->lun_lock); 11448 return; 11449 } 11450 } else { 11451 mtx_unlock(&softc->ctl_lock); 11452 return; 11453 } 11454 11455 if (softc->ha_mode == CTL_HA_MODE_XFER) { 11456 TAILQ_FOREACH_SAFE(io, &lun->ooa_queue, ooa_links, next_io) { 11457 /* We are master */ 11458 if (io->flags & CTL_FLAG_FROM_OTHER_SC) { 11459 if (io->flags & CTL_FLAG_IO_ACTIVE) { 11460 io->flags |= CTL_FLAG_ABORT; 11461 io->flags |= CTL_FLAG_FAILOVER; 11462 } else { /* This can be only due to DATAMOVE */ 11463 io->msg_type = CTL_MSG_DATAMOVE_DONE; 11464 io->flags &= ~CTL_FLAG_DMA_INPROG; 11465 io->flags |= CTL_FLAG_IO_ACTIVE; 11466 io->port_status = 31340; 11467 ctl_enqueue_isc((union ctl_io *)io); 11468 } 11469 } 11470 /* We are slave */ 11471 if (io->flags & CTL_FLAG_SENT_2OTHER_SC) { 11472 io->flags &= ~CTL_FLAG_SENT_2OTHER_SC; 11473 if (io->flags & CTL_FLAG_IO_ACTIVE) { 11474 io->flags |= CTL_FLAG_FAILOVER; 11475 } else { 11476 ctl_set_busy(&((union ctl_io *)io)-> 11477 scsiio); 11478 ctl_done((union ctl_io *)io); 11479 } 11480 } 11481 } 11482 } else { /* SERIALIZE modes */ 11483 TAILQ_FOREACH_SAFE(io, &lun->blocked_queue, blocked_links, 11484 next_io) { 11485 /* We are master */ 11486 if (io->flags & CTL_FLAG_FROM_OTHER_SC) { 11487 TAILQ_REMOVE(&lun->blocked_queue, io, 11488 blocked_links); 11489 io->flags &= ~CTL_FLAG_BLOCKED; 11490 TAILQ_REMOVE(&lun->ooa_queue, io, ooa_links); 11491 ctl_free_io((union ctl_io *)io); 11492 } 11493 } 11494 TAILQ_FOREACH_SAFE(io, &lun->ooa_queue, ooa_links, next_io) { 11495 /* We are master */ 11496 if (io->flags & CTL_FLAG_FROM_OTHER_SC) { 11497 TAILQ_REMOVE(&lun->ooa_queue, io, ooa_links); 11498 ctl_free_io((union ctl_io *)io); 11499 } 11500 /* We are slave */ 11501 if (io->flags & CTL_FLAG_SENT_2OTHER_SC) { 11502 io->flags &= ~CTL_FLAG_SENT_2OTHER_SC; 11503 if (!(io->flags & CTL_FLAG_IO_ACTIVE)) { 11504 ctl_set_busy(&((union ctl_io *)io)-> 11505 scsiio); 11506 ctl_done((union ctl_io *)io); 11507 } 11508 } 11509 } 11510 ctl_check_blocked(lun); 11511 } 11512 mtx_unlock(&lun->lun_lock); 11513} 11514 11515static int 11516ctl_scsiio_precheck(struct ctl_softc *softc, struct ctl_scsiio *ctsio) 11517{ 11518 struct ctl_lun *lun; 11519 const struct ctl_cmd_entry *entry; 11520 uint32_t initidx, targ_lun; 11521 int retval; 11522 11523 retval = 0; 11524 11525 lun = NULL; 11526 11527 targ_lun = ctsio->io_hdr.nexus.targ_mapped_lun; 11528 if ((targ_lun < CTL_MAX_LUNS) 11529 && ((lun = softc->ctl_luns[targ_lun]) != NULL)) { 11530 /* 11531 * If the LUN is invalid, pretend that it doesn't exist. 11532 * It will go away as soon as all pending I/O has been 11533 * completed. 11534 */ 11535 mtx_lock(&lun->lun_lock); 11536 if (lun->flags & CTL_LUN_DISABLED) { 11537 mtx_unlock(&lun->lun_lock); 11538 lun = NULL; 11539 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr = NULL; 11540 ctsio->io_hdr.ctl_private[CTL_PRIV_BACKEND_LUN].ptr = NULL; 11541 } else { 11542 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr = lun; 11543 ctsio->io_hdr.ctl_private[CTL_PRIV_BACKEND_LUN].ptr = 11544 lun->be_lun; 11545 11546 /* 11547 * Every I/O goes into the OOA queue for a 11548 * particular LUN, and stays there until completion. 11549 */ 11550#ifdef CTL_TIME_IO 11551 if (TAILQ_EMPTY(&lun->ooa_queue)) { 11552 lun->idle_time += getsbinuptime() - 11553 lun->last_busy; 11554 } 11555#endif 11556 TAILQ_INSERT_TAIL(&lun->ooa_queue, &ctsio->io_hdr, 11557 ooa_links); 11558 } 11559 } else { 11560 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr = NULL; 11561 ctsio->io_hdr.ctl_private[CTL_PRIV_BACKEND_LUN].ptr = NULL; 11562 } 11563 11564 /* Get command entry and return error if it is unsuppotyed. */ 11565 entry = ctl_validate_command(ctsio); 11566 if (entry == NULL) { 11567 if (lun) 11568 mtx_unlock(&lun->lun_lock); 11569 return (retval); 11570 } 11571 11572 ctsio->io_hdr.flags &= ~CTL_FLAG_DATA_MASK; 11573 ctsio->io_hdr.flags |= entry->flags & CTL_FLAG_DATA_MASK; 11574 11575 /* 11576 * Check to see whether we can send this command to LUNs that don't 11577 * exist. This should pretty much only be the case for inquiry 11578 * and request sense. Further checks, below, really require having 11579 * a LUN, so we can't really check the command anymore. Just put 11580 * it on the rtr queue. 11581 */ 11582 if (lun == NULL) { 11583 if (entry->flags & CTL_CMD_FLAG_OK_ON_NO_LUN) { 11584 ctsio->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 11585 ctl_enqueue_rtr((union ctl_io *)ctsio); 11586 return (retval); 11587 } 11588 11589 ctl_set_unsupported_lun(ctsio); 11590 ctl_done((union ctl_io *)ctsio); 11591 CTL_DEBUG_PRINT(("ctl_scsiio_precheck: bailing out due to invalid LUN\n")); 11592 return (retval); 11593 } else { 11594 /* 11595 * Make sure we support this particular command on this LUN. 11596 * e.g., we don't support writes to the control LUN. 11597 */ 11598 if (!ctl_cmd_applicable(lun->be_lun->lun_type, entry)) { 11599 mtx_unlock(&lun->lun_lock); 11600 ctl_set_invalid_opcode(ctsio); 11601 ctl_done((union ctl_io *)ctsio); 11602 return (retval); 11603 } 11604 } 11605 11606 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 11607 11608#ifdef CTL_WITH_CA 11609 /* 11610 * If we've got a request sense, it'll clear the contingent 11611 * allegiance condition. Otherwise, if we have a CA condition for 11612 * this initiator, clear it, because it sent down a command other 11613 * than request sense. 11614 */ 11615 if ((ctsio->cdb[0] != REQUEST_SENSE) 11616 && (ctl_is_set(lun->have_ca, initidx))) 11617 ctl_clear_mask(lun->have_ca, initidx); 11618#endif 11619 11620 /* 11621 * If the command has this flag set, it handles its own unit 11622 * attention reporting, we shouldn't do anything. Otherwise we 11623 * check for any pending unit attentions, and send them back to the 11624 * initiator. We only do this when a command initially comes in, 11625 * not when we pull it off the blocked queue. 11626 * 11627 * According to SAM-3, section 5.3.2, the order that things get 11628 * presented back to the host is basically unit attentions caused 11629 * by some sort of reset event, busy status, reservation conflicts 11630 * or task set full, and finally any other status. 11631 * 11632 * One issue here is that some of the unit attentions we report 11633 * don't fall into the "reset" category (e.g. "reported luns data 11634 * has changed"). So reporting it here, before the reservation 11635 * check, may be technically wrong. I guess the only thing to do 11636 * would be to check for and report the reset events here, and then 11637 * check for the other unit attention types after we check for a 11638 * reservation conflict. 11639 * 11640 * XXX KDM need to fix this 11641 */ 11642 if ((entry->flags & CTL_CMD_FLAG_NO_SENSE) == 0) { 11643 ctl_ua_type ua_type; 11644 11645 ua_type = ctl_build_ua(lun, initidx, &ctsio->sense_data, 11646 SSD_TYPE_NONE); 11647 if (ua_type != CTL_UA_NONE) { 11648 mtx_unlock(&lun->lun_lock); 11649 ctsio->scsi_status = SCSI_STATUS_CHECK_COND; 11650 ctsio->io_hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 11651 ctsio->sense_len = SSD_FULL_SIZE; 11652 ctl_done((union ctl_io *)ctsio); 11653 return (retval); 11654 } 11655 } 11656 11657 11658 if (ctl_scsiio_lun_check(lun, entry, ctsio) != 0) { 11659 mtx_unlock(&lun->lun_lock); 11660 ctl_done((union ctl_io *)ctsio); 11661 return (retval); 11662 } 11663 11664 /* 11665 * XXX CHD this is where we want to send IO to other side if 11666 * this LUN is secondary on this SC. We will need to make a copy 11667 * of the IO and flag the IO on this side as SENT_2OTHER and the flag 11668 * the copy we send as FROM_OTHER. 11669 * We also need to stuff the address of the original IO so we can 11670 * find it easily. Something similar will need be done on the other 11671 * side so when we are done we can find the copy. 11672 */ 11673 if ((lun->flags & CTL_LUN_PRIMARY_SC) == 0 && 11674 (lun->flags & CTL_LUN_PEER_SC_PRIMARY) != 0 && 11675 (entry->flags & CTL_CMD_FLAG_RUN_HERE) == 0) { 11676 union ctl_ha_msg msg_info; 11677 int isc_retval; 11678 11679 ctsio->io_hdr.flags |= CTL_FLAG_SENT_2OTHER_SC; 11680 ctsio->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 11681 mtx_unlock(&lun->lun_lock); 11682 11683 msg_info.hdr.msg_type = CTL_MSG_SERIALIZE; 11684 msg_info.hdr.original_sc = (union ctl_io *)ctsio; 11685 msg_info.hdr.serializing_sc = NULL; 11686 msg_info.hdr.nexus = ctsio->io_hdr.nexus; 11687 msg_info.scsi.tag_num = ctsio->tag_num; 11688 msg_info.scsi.tag_type = ctsio->tag_type; 11689 msg_info.scsi.cdb_len = ctsio->cdb_len; 11690 memcpy(msg_info.scsi.cdb, ctsio->cdb, CTL_MAX_CDBLEN); 11691 11692 if ((isc_retval = ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 11693 sizeof(msg_info.scsi) - sizeof(msg_info.scsi.sense_data), 11694 M_WAITOK)) > CTL_HA_STATUS_SUCCESS) { 11695 ctl_set_busy(ctsio); 11696 ctl_done((union ctl_io *)ctsio); 11697 return (retval); 11698 } 11699 return (retval); 11700 } 11701 11702 switch (ctl_check_ooa(lun, (union ctl_io *)ctsio, 11703 (union ctl_io *)TAILQ_PREV(&ctsio->io_hdr, 11704 ctl_ooaq, ooa_links))) { 11705 case CTL_ACTION_BLOCK: 11706 ctsio->io_hdr.flags |= CTL_FLAG_BLOCKED; 11707 TAILQ_INSERT_TAIL(&lun->blocked_queue, &ctsio->io_hdr, 11708 blocked_links); 11709 mtx_unlock(&lun->lun_lock); 11710 return (retval); 11711 case CTL_ACTION_PASS: 11712 case CTL_ACTION_SKIP: 11713 ctsio->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 11714 mtx_unlock(&lun->lun_lock); 11715 ctl_enqueue_rtr((union ctl_io *)ctsio); 11716 break; 11717 case CTL_ACTION_OVERLAP: 11718 mtx_unlock(&lun->lun_lock); 11719 ctl_set_overlapped_cmd(ctsio); 11720 ctl_done((union ctl_io *)ctsio); 11721 break; 11722 case CTL_ACTION_OVERLAP_TAG: 11723 mtx_unlock(&lun->lun_lock); 11724 ctl_set_overlapped_tag(ctsio, ctsio->tag_num & 0xff); 11725 ctl_done((union ctl_io *)ctsio); 11726 break; 11727 case CTL_ACTION_ERROR: 11728 default: 11729 mtx_unlock(&lun->lun_lock); 11730 ctl_set_internal_failure(ctsio, 11731 /*sks_valid*/ 0, 11732 /*retry_count*/ 0); 11733 ctl_done((union ctl_io *)ctsio); 11734 break; 11735 } 11736 return (retval); 11737} 11738 11739const struct ctl_cmd_entry * 11740ctl_get_cmd_entry(struct ctl_scsiio *ctsio, int *sa) 11741{ 11742 const struct ctl_cmd_entry *entry; 11743 int service_action; 11744 11745 entry = &ctl_cmd_table[ctsio->cdb[0]]; 11746 if (sa) 11747 *sa = ((entry->flags & CTL_CMD_FLAG_SA5) != 0); 11748 if (entry->flags & CTL_CMD_FLAG_SA5) { 11749 service_action = ctsio->cdb[1] & SERVICE_ACTION_MASK; 11750 entry = &((const struct ctl_cmd_entry *) 11751 entry->execute)[service_action]; 11752 } 11753 return (entry); 11754} 11755 11756const struct ctl_cmd_entry * 11757ctl_validate_command(struct ctl_scsiio *ctsio) 11758{ 11759 const struct ctl_cmd_entry *entry; 11760 int i, sa; 11761 uint8_t diff; 11762 11763 entry = ctl_get_cmd_entry(ctsio, &sa); 11764 if (entry->execute == NULL) { 11765 if (sa) 11766 ctl_set_invalid_field(ctsio, 11767 /*sks_valid*/ 1, 11768 /*command*/ 1, 11769 /*field*/ 1, 11770 /*bit_valid*/ 1, 11771 /*bit*/ 4); 11772 else 11773 ctl_set_invalid_opcode(ctsio); 11774 ctl_done((union ctl_io *)ctsio); 11775 return (NULL); 11776 } 11777 KASSERT(entry->length > 0, 11778 ("Not defined length for command 0x%02x/0x%02x", 11779 ctsio->cdb[0], ctsio->cdb[1])); 11780 for (i = 1; i < entry->length; i++) { 11781 diff = ctsio->cdb[i] & ~entry->usage[i - 1]; 11782 if (diff == 0) 11783 continue; 11784 ctl_set_invalid_field(ctsio, 11785 /*sks_valid*/ 1, 11786 /*command*/ 1, 11787 /*field*/ i, 11788 /*bit_valid*/ 1, 11789 /*bit*/ fls(diff) - 1); 11790 ctl_done((union ctl_io *)ctsio); 11791 return (NULL); 11792 } 11793 return (entry); 11794} 11795 11796static int 11797ctl_cmd_applicable(uint8_t lun_type, const struct ctl_cmd_entry *entry) 11798{ 11799 11800 switch (lun_type) { 11801 case T_DIRECT: 11802 if ((entry->flags & CTL_CMD_FLAG_OK_ON_DIRECT) == 0) 11803 return (0); 11804 break; 11805 case T_PROCESSOR: 11806 if ((entry->flags & CTL_CMD_FLAG_OK_ON_PROC) == 0) 11807 return (0); 11808 break; 11809 case T_CDROM: 11810 if ((entry->flags & CTL_CMD_FLAG_OK_ON_CDROM) == 0) 11811 return (0); 11812 break; 11813 default: 11814 return (0); 11815 } 11816 return (1); 11817} 11818 11819static int 11820ctl_scsiio(struct ctl_scsiio *ctsio) 11821{ 11822 int retval; 11823 const struct ctl_cmd_entry *entry; 11824 11825 retval = CTL_RETVAL_COMPLETE; 11826 11827 CTL_DEBUG_PRINT(("ctl_scsiio cdb[0]=%02X\n", ctsio->cdb[0])); 11828 11829 entry = ctl_get_cmd_entry(ctsio, NULL); 11830 11831 /* 11832 * If this I/O has been aborted, just send it straight to 11833 * ctl_done() without executing it. 11834 */ 11835 if (ctsio->io_hdr.flags & CTL_FLAG_ABORT) { 11836 ctl_done((union ctl_io *)ctsio); 11837 goto bailout; 11838 } 11839 11840 /* 11841 * All the checks should have been handled by ctl_scsiio_precheck(). 11842 * We should be clear now to just execute the I/O. 11843 */ 11844 retval = entry->execute(ctsio); 11845 11846bailout: 11847 return (retval); 11848} 11849 11850/* 11851 * Since we only implement one target right now, a bus reset simply resets 11852 * our single target. 11853 */ 11854static int 11855ctl_bus_reset(struct ctl_softc *softc, union ctl_io *io) 11856{ 11857 return(ctl_target_reset(softc, io, CTL_UA_BUS_RESET)); 11858} 11859 11860static int 11861ctl_target_reset(struct ctl_softc *softc, union ctl_io *io, 11862 ctl_ua_type ua_type) 11863{ 11864 struct ctl_port *port; 11865 struct ctl_lun *lun; 11866 int retval; 11867 11868 if (!(io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)) { 11869 union ctl_ha_msg msg_info; 11870 11871 msg_info.hdr.nexus = io->io_hdr.nexus; 11872 if (ua_type==CTL_UA_TARG_RESET) 11873 msg_info.task.task_action = CTL_TASK_TARGET_RESET; 11874 else 11875 msg_info.task.task_action = CTL_TASK_BUS_RESET; 11876 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 11877 msg_info.hdr.original_sc = NULL; 11878 msg_info.hdr.serializing_sc = NULL; 11879 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 11880 sizeof(msg_info.task), M_WAITOK); 11881 } 11882 retval = 0; 11883 11884 mtx_lock(&softc->ctl_lock); 11885 port = ctl_io_port(&io->io_hdr); 11886 STAILQ_FOREACH(lun, &softc->lun_list, links) { 11887 if (port != NULL && 11888 ctl_lun_map_to_port(port, lun->lun) >= CTL_MAX_LUNS) 11889 continue; 11890 retval += ctl_do_lun_reset(lun, io, ua_type); 11891 } 11892 mtx_unlock(&softc->ctl_lock); 11893 io->taskio.task_status = CTL_TASK_FUNCTION_COMPLETE; 11894 return (retval); 11895} 11896 11897/* 11898 * The LUN should always be set. The I/O is optional, and is used to 11899 * distinguish between I/Os sent by this initiator, and by other 11900 * initiators. We set unit attention for initiators other than this one. 11901 * SAM-3 is vague on this point. It does say that a unit attention should 11902 * be established for other initiators when a LUN is reset (see section 11903 * 5.7.3), but it doesn't specifically say that the unit attention should 11904 * be established for this particular initiator when a LUN is reset. Here 11905 * is the relevant text, from SAM-3 rev 8: 11906 * 11907 * 5.7.2 When a SCSI initiator port aborts its own tasks 11908 * 11909 * When a SCSI initiator port causes its own task(s) to be aborted, no 11910 * notification that the task(s) have been aborted shall be returned to 11911 * the SCSI initiator port other than the completion response for the 11912 * command or task management function action that caused the task(s) to 11913 * be aborted and notification(s) associated with related effects of the 11914 * action (e.g., a reset unit attention condition). 11915 * 11916 * XXX KDM for now, we're setting unit attention for all initiators. 11917 */ 11918static int 11919ctl_do_lun_reset(struct ctl_lun *lun, union ctl_io *io, ctl_ua_type ua_type) 11920{ 11921 union ctl_io *xio; 11922#if 0 11923 uint32_t initidx; 11924#endif 11925 int i; 11926 11927 mtx_lock(&lun->lun_lock); 11928 /* 11929 * Run through the OOA queue and abort each I/O. 11930 */ 11931 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 11932 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 11933 xio->io_hdr.flags |= CTL_FLAG_ABORT | CTL_FLAG_ABORT_STATUS; 11934 } 11935 11936 /* 11937 * This version sets unit attention for every 11938 */ 11939#if 0 11940 initidx = ctl_get_initindex(&io->io_hdr.nexus); 11941 ctl_est_ua_all(lun, initidx, ua_type); 11942#else 11943 ctl_est_ua_all(lun, -1, ua_type); 11944#endif 11945 11946 /* 11947 * A reset (any kind, really) clears reservations established with 11948 * RESERVE/RELEASE. It does not clear reservations established 11949 * with PERSISTENT RESERVE OUT, but we don't support that at the 11950 * moment anyway. See SPC-2, section 5.6. SPC-3 doesn't address 11951 * reservations made with the RESERVE/RELEASE commands, because 11952 * those commands are obsolete in SPC-3. 11953 */ 11954 lun->flags &= ~CTL_LUN_RESERVED; 11955 11956#ifdef CTL_WITH_CA 11957 for (i = 0; i < CTL_MAX_INITIATORS; i++) 11958 ctl_clear_mask(lun->have_ca, i); 11959#endif 11960 lun->prevent_count = 0; 11961 for (i = 0; i < CTL_MAX_INITIATORS; i++) 11962 ctl_clear_mask(lun->prevent, i); 11963 mtx_unlock(&lun->lun_lock); 11964 11965 return (0); 11966} 11967 11968static int 11969ctl_lun_reset(struct ctl_softc *softc, union ctl_io *io) 11970{ 11971 struct ctl_lun *lun; 11972 uint32_t targ_lun; 11973 int retval; 11974 11975 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 11976 mtx_lock(&softc->ctl_lock); 11977 if ((targ_lun >= CTL_MAX_LUNS) || 11978 (lun = softc->ctl_luns[targ_lun]) == NULL) { 11979 mtx_unlock(&softc->ctl_lock); 11980 io->taskio.task_status = CTL_TASK_LUN_DOES_NOT_EXIST; 11981 return (1); 11982 } 11983 retval = ctl_do_lun_reset(lun, io, CTL_UA_LUN_RESET); 11984 mtx_unlock(&softc->ctl_lock); 11985 io->taskio.task_status = CTL_TASK_FUNCTION_COMPLETE; 11986 11987 if ((io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) == 0) { 11988 union ctl_ha_msg msg_info; 11989 11990 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 11991 msg_info.hdr.nexus = io->io_hdr.nexus; 11992 msg_info.task.task_action = CTL_TASK_LUN_RESET; 11993 msg_info.hdr.original_sc = NULL; 11994 msg_info.hdr.serializing_sc = NULL; 11995 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 11996 sizeof(msg_info.task), M_WAITOK); 11997 } 11998 return (retval); 11999} 12000 12001static void 12002ctl_abort_tasks_lun(struct ctl_lun *lun, uint32_t targ_port, uint32_t init_id, 12003 int other_sc) 12004{ 12005 union ctl_io *xio; 12006 12007 mtx_assert(&lun->lun_lock, MA_OWNED); 12008 12009 /* 12010 * Run through the OOA queue and attempt to find the given I/O. 12011 * The target port, initiator ID, tag type and tag number have to 12012 * match the values that we got from the initiator. If we have an 12013 * untagged command to abort, simply abort the first untagged command 12014 * we come to. We only allow one untagged command at a time of course. 12015 */ 12016 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 12017 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 12018 12019 if ((targ_port == UINT32_MAX || 12020 targ_port == xio->io_hdr.nexus.targ_port) && 12021 (init_id == UINT32_MAX || 12022 init_id == xio->io_hdr.nexus.initid)) { 12023 if (targ_port != xio->io_hdr.nexus.targ_port || 12024 init_id != xio->io_hdr.nexus.initid) 12025 xio->io_hdr.flags |= CTL_FLAG_ABORT_STATUS; 12026 xio->io_hdr.flags |= CTL_FLAG_ABORT; 12027 if (!other_sc && !(lun->flags & CTL_LUN_PRIMARY_SC)) { 12028 union ctl_ha_msg msg_info; 12029 12030 msg_info.hdr.nexus = xio->io_hdr.nexus; 12031 msg_info.task.task_action = CTL_TASK_ABORT_TASK; 12032 msg_info.task.tag_num = xio->scsiio.tag_num; 12033 msg_info.task.tag_type = xio->scsiio.tag_type; 12034 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 12035 msg_info.hdr.original_sc = NULL; 12036 msg_info.hdr.serializing_sc = NULL; 12037 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 12038 sizeof(msg_info.task), M_NOWAIT); 12039 } 12040 } 12041 } 12042} 12043 12044static int 12045ctl_abort_task_set(union ctl_io *io) 12046{ 12047 struct ctl_softc *softc = control_softc; 12048 struct ctl_lun *lun; 12049 uint32_t targ_lun; 12050 12051 /* 12052 * Look up the LUN. 12053 */ 12054 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12055 mtx_lock(&softc->ctl_lock); 12056 if ((targ_lun >= CTL_MAX_LUNS) || 12057 (lun = softc->ctl_luns[targ_lun]) == NULL) { 12058 mtx_unlock(&softc->ctl_lock); 12059 io->taskio.task_status = CTL_TASK_LUN_DOES_NOT_EXIST; 12060 return (1); 12061 } 12062 12063 mtx_lock(&lun->lun_lock); 12064 mtx_unlock(&softc->ctl_lock); 12065 if (io->taskio.task_action == CTL_TASK_ABORT_TASK_SET) { 12066 ctl_abort_tasks_lun(lun, io->io_hdr.nexus.targ_port, 12067 io->io_hdr.nexus.initid, 12068 (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) != 0); 12069 } else { /* CTL_TASK_CLEAR_TASK_SET */ 12070 ctl_abort_tasks_lun(lun, UINT32_MAX, UINT32_MAX, 12071 (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) != 0); 12072 } 12073 mtx_unlock(&lun->lun_lock); 12074 io->taskio.task_status = CTL_TASK_FUNCTION_COMPLETE; 12075 return (0); 12076} 12077 12078static int 12079ctl_i_t_nexus_reset(union ctl_io *io) 12080{ 12081 struct ctl_softc *softc = control_softc; 12082 struct ctl_lun *lun; 12083 uint32_t initidx; 12084 12085 if (!(io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)) { 12086 union ctl_ha_msg msg_info; 12087 12088 msg_info.hdr.nexus = io->io_hdr.nexus; 12089 msg_info.task.task_action = CTL_TASK_I_T_NEXUS_RESET; 12090 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 12091 msg_info.hdr.original_sc = NULL; 12092 msg_info.hdr.serializing_sc = NULL; 12093 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 12094 sizeof(msg_info.task), M_WAITOK); 12095 } 12096 12097 initidx = ctl_get_initindex(&io->io_hdr.nexus); 12098 mtx_lock(&softc->ctl_lock); 12099 STAILQ_FOREACH(lun, &softc->lun_list, links) { 12100 mtx_lock(&lun->lun_lock); 12101 ctl_abort_tasks_lun(lun, io->io_hdr.nexus.targ_port, 12102 io->io_hdr.nexus.initid, 1); 12103#ifdef CTL_WITH_CA 12104 ctl_clear_mask(lun->have_ca, initidx); 12105#endif 12106 if ((lun->flags & CTL_LUN_RESERVED) && (lun->res_idx == initidx)) 12107 lun->flags &= ~CTL_LUN_RESERVED; 12108 if (ctl_is_set(lun->prevent, initidx)) { 12109 ctl_clear_mask(lun->prevent, initidx); 12110 lun->prevent_count--; 12111 } 12112 ctl_est_ua(lun, initidx, CTL_UA_I_T_NEXUS_LOSS); 12113 mtx_unlock(&lun->lun_lock); 12114 } 12115 mtx_unlock(&softc->ctl_lock); 12116 io->taskio.task_status = CTL_TASK_FUNCTION_COMPLETE; 12117 return (0); 12118} 12119 12120static int 12121ctl_abort_task(union ctl_io *io) 12122{ 12123 union ctl_io *xio; 12124 struct ctl_lun *lun; 12125 struct ctl_softc *softc; 12126#if 0 12127 struct sbuf sb; 12128 char printbuf[128]; 12129#endif 12130 int found; 12131 uint32_t targ_lun; 12132 12133 softc = control_softc; 12134 found = 0; 12135 12136 /* 12137 * Look up the LUN. 12138 */ 12139 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12140 mtx_lock(&softc->ctl_lock); 12141 if ((targ_lun >= CTL_MAX_LUNS) || 12142 (lun = softc->ctl_luns[targ_lun]) == NULL) { 12143 mtx_unlock(&softc->ctl_lock); 12144 io->taskio.task_status = CTL_TASK_LUN_DOES_NOT_EXIST; 12145 return (1); 12146 } 12147 12148#if 0 12149 printf("ctl_abort_task: called for lun %lld, tag %d type %d\n", 12150 lun->lun, io->taskio.tag_num, io->taskio.tag_type); 12151#endif 12152 12153 mtx_lock(&lun->lun_lock); 12154 mtx_unlock(&softc->ctl_lock); 12155 /* 12156 * Run through the OOA queue and attempt to find the given I/O. 12157 * The target port, initiator ID, tag type and tag number have to 12158 * match the values that we got from the initiator. If we have an 12159 * untagged command to abort, simply abort the first untagged command 12160 * we come to. We only allow one untagged command at a time of course. 12161 */ 12162 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 12163 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 12164#if 0 12165 sbuf_new(&sb, printbuf, sizeof(printbuf), SBUF_FIXEDLEN); 12166 12167 sbuf_printf(&sb, "LUN %lld tag %d type %d%s%s%s%s: ", 12168 lun->lun, xio->scsiio.tag_num, 12169 xio->scsiio.tag_type, 12170 (xio->io_hdr.blocked_links.tqe_prev 12171 == NULL) ? "" : " BLOCKED", 12172 (xio->io_hdr.flags & 12173 CTL_FLAG_DMA_INPROG) ? " DMA" : "", 12174 (xio->io_hdr.flags & 12175 CTL_FLAG_ABORT) ? " ABORT" : "", 12176 (xio->io_hdr.flags & 12177 CTL_FLAG_IS_WAS_ON_RTR ? " RTR" : "")); 12178 ctl_scsi_command_string(&xio->scsiio, NULL, &sb); 12179 sbuf_finish(&sb); 12180 printf("%s\n", sbuf_data(&sb)); 12181#endif 12182 12183 if ((xio->io_hdr.nexus.targ_port != io->io_hdr.nexus.targ_port) 12184 || (xio->io_hdr.nexus.initid != io->io_hdr.nexus.initid) 12185 || (xio->io_hdr.flags & CTL_FLAG_ABORT)) 12186 continue; 12187 12188 /* 12189 * If the abort says that the task is untagged, the 12190 * task in the queue must be untagged. Otherwise, 12191 * we just check to see whether the tag numbers 12192 * match. This is because the QLogic firmware 12193 * doesn't pass back the tag type in an abort 12194 * request. 12195 */ 12196#if 0 12197 if (((xio->scsiio.tag_type == CTL_TAG_UNTAGGED) 12198 && (io->taskio.tag_type == CTL_TAG_UNTAGGED)) 12199 || (xio->scsiio.tag_num == io->taskio.tag_num)) 12200#endif 12201 /* 12202 * XXX KDM we've got problems with FC, because it 12203 * doesn't send down a tag type with aborts. So we 12204 * can only really go by the tag number... 12205 * This may cause problems with parallel SCSI. 12206 * Need to figure that out!! 12207 */ 12208 if (xio->scsiio.tag_num == io->taskio.tag_num) { 12209 xio->io_hdr.flags |= CTL_FLAG_ABORT; 12210 found = 1; 12211 if ((io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) == 0 && 12212 !(lun->flags & CTL_LUN_PRIMARY_SC)) { 12213 union ctl_ha_msg msg_info; 12214 12215 msg_info.hdr.nexus = io->io_hdr.nexus; 12216 msg_info.task.task_action = CTL_TASK_ABORT_TASK; 12217 msg_info.task.tag_num = io->taskio.tag_num; 12218 msg_info.task.tag_type = io->taskio.tag_type; 12219 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 12220 msg_info.hdr.original_sc = NULL; 12221 msg_info.hdr.serializing_sc = NULL; 12222#if 0 12223 printf("Sent Abort to other side\n"); 12224#endif 12225 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 12226 sizeof(msg_info.task), M_NOWAIT); 12227 } 12228#if 0 12229 printf("ctl_abort_task: found I/O to abort\n"); 12230#endif 12231 } 12232 } 12233 mtx_unlock(&lun->lun_lock); 12234 12235 if (found == 0) { 12236 /* 12237 * This isn't really an error. It's entirely possible for 12238 * the abort and command completion to cross on the wire. 12239 * This is more of an informative/diagnostic error. 12240 */ 12241#if 0 12242 printf("ctl_abort_task: ABORT sent for nonexistent I/O: " 12243 "%u:%u:%u tag %d type %d\n", 12244 io->io_hdr.nexus.initid, 12245 io->io_hdr.nexus.targ_port, 12246 io->io_hdr.nexus.targ_lun, io->taskio.tag_num, 12247 io->taskio.tag_type); 12248#endif 12249 } 12250 io->taskio.task_status = CTL_TASK_FUNCTION_COMPLETE; 12251 return (0); 12252} 12253 12254static int 12255ctl_query_task(union ctl_io *io, int task_set) 12256{ 12257 union ctl_io *xio; 12258 struct ctl_lun *lun; 12259 struct ctl_softc *softc; 12260 int found = 0; 12261 uint32_t targ_lun; 12262 12263 softc = control_softc; 12264 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12265 mtx_lock(&softc->ctl_lock); 12266 if ((targ_lun >= CTL_MAX_LUNS) || 12267 (lun = softc->ctl_luns[targ_lun]) == NULL) { 12268 mtx_unlock(&softc->ctl_lock); 12269 io->taskio.task_status = CTL_TASK_LUN_DOES_NOT_EXIST; 12270 return (1); 12271 } 12272 mtx_lock(&lun->lun_lock); 12273 mtx_unlock(&softc->ctl_lock); 12274 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 12275 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 12276 12277 if ((xio->io_hdr.nexus.targ_port != io->io_hdr.nexus.targ_port) 12278 || (xio->io_hdr.nexus.initid != io->io_hdr.nexus.initid) 12279 || (xio->io_hdr.flags & CTL_FLAG_ABORT)) 12280 continue; 12281 12282 if (task_set || xio->scsiio.tag_num == io->taskio.tag_num) { 12283 found = 1; 12284 break; 12285 } 12286 } 12287 mtx_unlock(&lun->lun_lock); 12288 if (found) 12289 io->taskio.task_status = CTL_TASK_FUNCTION_SUCCEEDED; 12290 else 12291 io->taskio.task_status = CTL_TASK_FUNCTION_COMPLETE; 12292 return (0); 12293} 12294 12295static int 12296ctl_query_async_event(union ctl_io *io) 12297{ 12298 struct ctl_lun *lun; 12299 struct ctl_softc *softc; 12300 ctl_ua_type ua; 12301 uint32_t targ_lun, initidx; 12302 12303 softc = control_softc; 12304 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12305 mtx_lock(&softc->ctl_lock); 12306 if ((targ_lun >= CTL_MAX_LUNS) || 12307 (lun = softc->ctl_luns[targ_lun]) == NULL) { 12308 mtx_unlock(&softc->ctl_lock); 12309 io->taskio.task_status = CTL_TASK_LUN_DOES_NOT_EXIST; 12310 return (1); 12311 } 12312 mtx_lock(&lun->lun_lock); 12313 mtx_unlock(&softc->ctl_lock); 12314 initidx = ctl_get_initindex(&io->io_hdr.nexus); 12315 ua = ctl_build_qae(lun, initidx, io->taskio.task_resp); 12316 mtx_unlock(&lun->lun_lock); 12317 if (ua != CTL_UA_NONE) 12318 io->taskio.task_status = CTL_TASK_FUNCTION_SUCCEEDED; 12319 else 12320 io->taskio.task_status = CTL_TASK_FUNCTION_COMPLETE; 12321 return (0); 12322} 12323 12324static void 12325ctl_run_task(union ctl_io *io) 12326{ 12327 struct ctl_softc *softc = control_softc; 12328 int retval = 1; 12329 12330 CTL_DEBUG_PRINT(("ctl_run_task\n")); 12331 KASSERT(io->io_hdr.io_type == CTL_IO_TASK, 12332 ("ctl_run_task: Unextected io_type %d\n", io->io_hdr.io_type)); 12333 io->taskio.task_status = CTL_TASK_FUNCTION_NOT_SUPPORTED; 12334 bzero(io->taskio.task_resp, sizeof(io->taskio.task_resp)); 12335 switch (io->taskio.task_action) { 12336 case CTL_TASK_ABORT_TASK: 12337 retval = ctl_abort_task(io); 12338 break; 12339 case CTL_TASK_ABORT_TASK_SET: 12340 case CTL_TASK_CLEAR_TASK_SET: 12341 retval = ctl_abort_task_set(io); 12342 break; 12343 case CTL_TASK_CLEAR_ACA: 12344 break; 12345 case CTL_TASK_I_T_NEXUS_RESET: 12346 retval = ctl_i_t_nexus_reset(io); 12347 break; 12348 case CTL_TASK_LUN_RESET: 12349 retval = ctl_lun_reset(softc, io); 12350 break; 12351 case CTL_TASK_TARGET_RESET: 12352 retval = ctl_target_reset(softc, io, CTL_UA_TARG_RESET); 12353 break; 12354 case CTL_TASK_BUS_RESET: 12355 retval = ctl_bus_reset(softc, io); 12356 break; 12357 case CTL_TASK_PORT_LOGIN: 12358 break; 12359 case CTL_TASK_PORT_LOGOUT: 12360 break; 12361 case CTL_TASK_QUERY_TASK: 12362 retval = ctl_query_task(io, 0); 12363 break; 12364 case CTL_TASK_QUERY_TASK_SET: 12365 retval = ctl_query_task(io, 1); 12366 break; 12367 case CTL_TASK_QUERY_ASYNC_EVENT: 12368 retval = ctl_query_async_event(io); 12369 break; 12370 default: 12371 printf("%s: got unknown task management event %d\n", 12372 __func__, io->taskio.task_action); 12373 break; 12374 } 12375 if (retval == 0) 12376 io->io_hdr.status = CTL_SUCCESS; 12377 else 12378 io->io_hdr.status = CTL_ERROR; 12379 ctl_done(io); 12380} 12381 12382/* 12383 * For HA operation. Handle commands that come in from the other 12384 * controller. 12385 */ 12386static void 12387ctl_handle_isc(union ctl_io *io) 12388{ 12389 int free_io; 12390 struct ctl_lun *lun; 12391 struct ctl_softc *softc = control_softc; 12392 uint32_t targ_lun; 12393 12394 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12395 lun = softc->ctl_luns[targ_lun]; 12396 12397 switch (io->io_hdr.msg_type) { 12398 case CTL_MSG_SERIALIZE: 12399 free_io = ctl_serialize_other_sc_cmd(&io->scsiio); 12400 break; 12401 case CTL_MSG_R2R: { 12402 const struct ctl_cmd_entry *entry; 12403 12404 /* 12405 * This is only used in SER_ONLY mode. 12406 */ 12407 free_io = 0; 12408 entry = ctl_get_cmd_entry(&io->scsiio, NULL); 12409 mtx_lock(&lun->lun_lock); 12410 if (ctl_scsiio_lun_check(lun, 12411 entry, (struct ctl_scsiio *)io) != 0) { 12412 mtx_unlock(&lun->lun_lock); 12413 ctl_done(io); 12414 break; 12415 } 12416 io->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 12417 mtx_unlock(&lun->lun_lock); 12418 ctl_enqueue_rtr(io); 12419 break; 12420 } 12421 case CTL_MSG_FINISH_IO: 12422 if (softc->ha_mode == CTL_HA_MODE_XFER) { 12423 free_io = 0; 12424 ctl_done(io); 12425 } else { 12426 free_io = 1; 12427 mtx_lock(&lun->lun_lock); 12428 TAILQ_REMOVE(&lun->ooa_queue, &io->io_hdr, 12429 ooa_links); 12430 ctl_check_blocked(lun); 12431 mtx_unlock(&lun->lun_lock); 12432 } 12433 break; 12434 case CTL_MSG_PERS_ACTION: 12435 ctl_hndl_per_res_out_on_other_sc( 12436 (union ctl_ha_msg *)&io->presio.pr_msg); 12437 free_io = 1; 12438 break; 12439 case CTL_MSG_BAD_JUJU: 12440 free_io = 0; 12441 ctl_done(io); 12442 break; 12443 case CTL_MSG_DATAMOVE: 12444 /* Only used in XFER mode */ 12445 free_io = 0; 12446 ctl_datamove_remote(io); 12447 break; 12448 case CTL_MSG_DATAMOVE_DONE: 12449 /* Only used in XFER mode */ 12450 free_io = 0; 12451 io->scsiio.be_move_done(io); 12452 break; 12453 case CTL_MSG_FAILOVER: 12454 ctl_failover_lun(io); 12455 free_io = 1; 12456 break; 12457 default: 12458 free_io = 1; 12459 printf("%s: Invalid message type %d\n", 12460 __func__, io->io_hdr.msg_type); 12461 break; 12462 } 12463 if (free_io) 12464 ctl_free_io(io); 12465 12466} 12467 12468 12469/* 12470 * Returns the match type in the case of a match, or CTL_LUN_PAT_NONE if 12471 * there is no match. 12472 */ 12473static ctl_lun_error_pattern 12474ctl_cmd_pattern_match(struct ctl_scsiio *ctsio, struct ctl_error_desc *desc) 12475{ 12476 const struct ctl_cmd_entry *entry; 12477 ctl_lun_error_pattern filtered_pattern, pattern; 12478 12479 pattern = desc->error_pattern; 12480 12481 /* 12482 * XXX KDM we need more data passed into this function to match a 12483 * custom pattern, and we actually need to implement custom pattern 12484 * matching. 12485 */ 12486 if (pattern & CTL_LUN_PAT_CMD) 12487 return (CTL_LUN_PAT_CMD); 12488 12489 if ((pattern & CTL_LUN_PAT_MASK) == CTL_LUN_PAT_ANY) 12490 return (CTL_LUN_PAT_ANY); 12491 12492 entry = ctl_get_cmd_entry(ctsio, NULL); 12493 12494 filtered_pattern = entry->pattern & pattern; 12495 12496 /* 12497 * If the user requested specific flags in the pattern (e.g. 12498 * CTL_LUN_PAT_RANGE), make sure the command supports all of those 12499 * flags. 12500 * 12501 * If the user did not specify any flags, it doesn't matter whether 12502 * or not the command supports the flags. 12503 */ 12504 if ((filtered_pattern & ~CTL_LUN_PAT_MASK) != 12505 (pattern & ~CTL_LUN_PAT_MASK)) 12506 return (CTL_LUN_PAT_NONE); 12507 12508 /* 12509 * If the user asked for a range check, see if the requested LBA 12510 * range overlaps with this command's LBA range. 12511 */ 12512 if (filtered_pattern & CTL_LUN_PAT_RANGE) { 12513 uint64_t lba1; 12514 uint64_t len1; 12515 ctl_action action; 12516 int retval; 12517 12518 retval = ctl_get_lba_len((union ctl_io *)ctsio, &lba1, &len1); 12519 if (retval != 0) 12520 return (CTL_LUN_PAT_NONE); 12521 12522 action = ctl_extent_check_lba(lba1, len1, desc->lba_range.lba, 12523 desc->lba_range.len, FALSE); 12524 /* 12525 * A "pass" means that the LBA ranges don't overlap, so 12526 * this doesn't match the user's range criteria. 12527 */ 12528 if (action == CTL_ACTION_PASS) 12529 return (CTL_LUN_PAT_NONE); 12530 } 12531 12532 return (filtered_pattern); 12533} 12534 12535static void 12536ctl_inject_error(struct ctl_lun *lun, union ctl_io *io) 12537{ 12538 struct ctl_error_desc *desc, *desc2; 12539 12540 mtx_assert(&lun->lun_lock, MA_OWNED); 12541 12542 STAILQ_FOREACH_SAFE(desc, &lun->error_list, links, desc2) { 12543 ctl_lun_error_pattern pattern; 12544 /* 12545 * Check to see whether this particular command matches 12546 * the pattern in the descriptor. 12547 */ 12548 pattern = ctl_cmd_pattern_match(&io->scsiio, desc); 12549 if ((pattern & CTL_LUN_PAT_MASK) == CTL_LUN_PAT_NONE) 12550 continue; 12551 12552 switch (desc->lun_error & CTL_LUN_INJ_TYPE) { 12553 case CTL_LUN_INJ_ABORTED: 12554 ctl_set_aborted(&io->scsiio); 12555 break; 12556 case CTL_LUN_INJ_MEDIUM_ERR: 12557 ctl_set_medium_error(&io->scsiio, 12558 (io->io_hdr.flags & CTL_FLAG_DATA_MASK) != 12559 CTL_FLAG_DATA_OUT); 12560 break; 12561 case CTL_LUN_INJ_UA: 12562 /* 29h/00h POWER ON, RESET, OR BUS DEVICE RESET 12563 * OCCURRED */ 12564 ctl_set_ua(&io->scsiio, 0x29, 0x00); 12565 break; 12566 case CTL_LUN_INJ_CUSTOM: 12567 /* 12568 * We're assuming the user knows what he is doing. 12569 * Just copy the sense information without doing 12570 * checks. 12571 */ 12572 bcopy(&desc->custom_sense, &io->scsiio.sense_data, 12573 MIN(sizeof(desc->custom_sense), 12574 sizeof(io->scsiio.sense_data))); 12575 io->scsiio.scsi_status = SCSI_STATUS_CHECK_COND; 12576 io->scsiio.sense_len = SSD_FULL_SIZE; 12577 io->io_hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 12578 break; 12579 case CTL_LUN_INJ_NONE: 12580 default: 12581 /* 12582 * If this is an error injection type we don't know 12583 * about, clear the continuous flag (if it is set) 12584 * so it will get deleted below. 12585 */ 12586 desc->lun_error &= ~CTL_LUN_INJ_CONTINUOUS; 12587 break; 12588 } 12589 /* 12590 * By default, each error injection action is a one-shot 12591 */ 12592 if (desc->lun_error & CTL_LUN_INJ_CONTINUOUS) 12593 continue; 12594 12595 STAILQ_REMOVE(&lun->error_list, desc, ctl_error_desc, links); 12596 12597 free(desc, M_CTL); 12598 } 12599} 12600 12601#ifdef CTL_IO_DELAY 12602static void 12603ctl_datamove_timer_wakeup(void *arg) 12604{ 12605 union ctl_io *io; 12606 12607 io = (union ctl_io *)arg; 12608 12609 ctl_datamove(io); 12610} 12611#endif /* CTL_IO_DELAY */ 12612 12613void 12614ctl_datamove(union ctl_io *io) 12615{ 12616 struct ctl_lun *lun; 12617 void (*fe_datamove)(union ctl_io *io); 12618 12619 mtx_assert(&control_softc->ctl_lock, MA_NOTOWNED); 12620 12621 CTL_DEBUG_PRINT(("ctl_datamove\n")); 12622 12623 lun = (struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 12624#ifdef CTL_TIME_IO 12625 if ((time_uptime - io->io_hdr.start_time) > ctl_time_io_secs) { 12626 char str[256]; 12627 char path_str[64]; 12628 struct sbuf sb; 12629 12630 ctl_scsi_path_string(io, path_str, sizeof(path_str)); 12631 sbuf_new(&sb, str, sizeof(str), SBUF_FIXEDLEN); 12632 12633 sbuf_cat(&sb, path_str); 12634 switch (io->io_hdr.io_type) { 12635 case CTL_IO_SCSI: 12636 ctl_scsi_command_string(&io->scsiio, NULL, &sb); 12637 sbuf_printf(&sb, "\n"); 12638 sbuf_cat(&sb, path_str); 12639 sbuf_printf(&sb, "Tag: 0x%04x, type %d\n", 12640 io->scsiio.tag_num, io->scsiio.tag_type); 12641 break; 12642 case CTL_IO_TASK: 12643 sbuf_printf(&sb, "Task I/O type: %d, Tag: 0x%04x, " 12644 "Tag Type: %d\n", io->taskio.task_action, 12645 io->taskio.tag_num, io->taskio.tag_type); 12646 break; 12647 default: 12648 panic("%s: Invalid CTL I/O type %d\n", 12649 __func__, io->io_hdr.io_type); 12650 } 12651 sbuf_cat(&sb, path_str); 12652 sbuf_printf(&sb, "ctl_datamove: %jd seconds\n", 12653 (intmax_t)time_uptime - io->io_hdr.start_time); 12654 sbuf_finish(&sb); 12655 printf("%s", sbuf_data(&sb)); 12656 } 12657#endif /* CTL_TIME_IO */ 12658 12659#ifdef CTL_IO_DELAY 12660 if (io->io_hdr.flags & CTL_FLAG_DELAY_DONE) { 12661 io->io_hdr.flags &= ~CTL_FLAG_DELAY_DONE; 12662 } else { 12663 if ((lun != NULL) 12664 && (lun->delay_info.datamove_delay > 0)) { 12665 12666 callout_init(&io->io_hdr.delay_callout, /*mpsafe*/ 1); 12667 io->io_hdr.flags |= CTL_FLAG_DELAY_DONE; 12668 callout_reset(&io->io_hdr.delay_callout, 12669 lun->delay_info.datamove_delay * hz, 12670 ctl_datamove_timer_wakeup, io); 12671 if (lun->delay_info.datamove_type == 12672 CTL_DELAY_TYPE_ONESHOT) 12673 lun->delay_info.datamove_delay = 0; 12674 return; 12675 } 12676 } 12677#endif 12678 12679 /* 12680 * This command has been aborted. Set the port status, so we fail 12681 * the data move. 12682 */ 12683 if (io->io_hdr.flags & CTL_FLAG_ABORT) { 12684 printf("ctl_datamove: tag 0x%04x on (%u:%u:%u) aborted\n", 12685 io->scsiio.tag_num, io->io_hdr.nexus.initid, 12686 io->io_hdr.nexus.targ_port, 12687 io->io_hdr.nexus.targ_lun); 12688 io->io_hdr.port_status = 31337; 12689 /* 12690 * Note that the backend, in this case, will get the 12691 * callback in its context. In other cases it may get 12692 * called in the frontend's interrupt thread context. 12693 */ 12694 io->scsiio.be_move_done(io); 12695 return; 12696 } 12697 12698 /* Don't confuse frontend with zero length data move. */ 12699 if (io->scsiio.kern_data_len == 0) { 12700 io->scsiio.be_move_done(io); 12701 return; 12702 } 12703 12704 fe_datamove = ctl_io_port(&io->io_hdr)->fe_datamove; 12705 fe_datamove(io); 12706} 12707 12708static void 12709ctl_send_datamove_done(union ctl_io *io, int have_lock) 12710{ 12711 union ctl_ha_msg msg; 12712#ifdef CTL_TIME_IO 12713 struct bintime cur_bt; 12714#endif 12715 12716 memset(&msg, 0, sizeof(msg)); 12717 msg.hdr.msg_type = CTL_MSG_DATAMOVE_DONE; 12718 msg.hdr.original_sc = io; 12719 msg.hdr.serializing_sc = io->io_hdr.serializing_sc; 12720 msg.hdr.nexus = io->io_hdr.nexus; 12721 msg.hdr.status = io->io_hdr.status; 12722 msg.scsi.tag_num = io->scsiio.tag_num; 12723 msg.scsi.tag_type = io->scsiio.tag_type; 12724 msg.scsi.scsi_status = io->scsiio.scsi_status; 12725 memcpy(&msg.scsi.sense_data, &io->scsiio.sense_data, 12726 io->scsiio.sense_len); 12727 msg.scsi.sense_len = io->scsiio.sense_len; 12728 msg.scsi.sense_residual = io->scsiio.sense_residual; 12729 msg.scsi.fetd_status = io->io_hdr.port_status; 12730 msg.scsi.residual = io->scsiio.residual; 12731 io->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 12732 if (io->io_hdr.flags & CTL_FLAG_FAILOVER) { 12733 ctl_failover_io(io, /*have_lock*/ have_lock); 12734 return; 12735 } 12736 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, 12737 sizeof(msg.scsi) - sizeof(msg.scsi.sense_data) + 12738 msg.scsi.sense_len, M_WAITOK); 12739 12740#ifdef CTL_TIME_IO 12741 getbinuptime(&cur_bt); 12742 bintime_sub(&cur_bt, &io->io_hdr.dma_start_bt); 12743 bintime_add(&io->io_hdr.dma_bt, &cur_bt); 12744#endif 12745 io->io_hdr.num_dmas++; 12746} 12747 12748/* 12749 * The DMA to the remote side is done, now we need to tell the other side 12750 * we're done so it can continue with its data movement. 12751 */ 12752static void 12753ctl_datamove_remote_write_cb(struct ctl_ha_dt_req *rq) 12754{ 12755 union ctl_io *io; 12756 uint32_t i; 12757 12758 io = rq->context; 12759 12760 if (rq->ret != CTL_HA_STATUS_SUCCESS) { 12761 printf("%s: ISC DMA write failed with error %d", __func__, 12762 rq->ret); 12763 ctl_set_internal_failure(&io->scsiio, 12764 /*sks_valid*/ 1, 12765 /*retry_count*/ rq->ret); 12766 } 12767 12768 ctl_dt_req_free(rq); 12769 12770 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 12771 free(io->io_hdr.local_sglist[i].addr, M_CTL); 12772 free(io->io_hdr.remote_sglist, M_CTL); 12773 io->io_hdr.remote_sglist = NULL; 12774 io->io_hdr.local_sglist = NULL; 12775 12776 /* 12777 * The data is in local and remote memory, so now we need to send 12778 * status (good or back) back to the other side. 12779 */ 12780 ctl_send_datamove_done(io, /*have_lock*/ 0); 12781} 12782 12783/* 12784 * We've moved the data from the host/controller into local memory. Now we 12785 * need to push it over to the remote controller's memory. 12786 */ 12787static int 12788ctl_datamove_remote_dm_write_cb(union ctl_io *io) 12789{ 12790 int retval; 12791 12792 retval = ctl_datamove_remote_xfer(io, CTL_HA_DT_CMD_WRITE, 12793 ctl_datamove_remote_write_cb); 12794 return (retval); 12795} 12796 12797static void 12798ctl_datamove_remote_write(union ctl_io *io) 12799{ 12800 int retval; 12801 void (*fe_datamove)(union ctl_io *io); 12802 12803 /* 12804 * - Get the data from the host/HBA into local memory. 12805 * - DMA memory from the local controller to the remote controller. 12806 * - Send status back to the remote controller. 12807 */ 12808 12809 retval = ctl_datamove_remote_sgl_setup(io); 12810 if (retval != 0) 12811 return; 12812 12813 /* Switch the pointer over so the FETD knows what to do */ 12814 io->scsiio.kern_data_ptr = (uint8_t *)io->io_hdr.local_sglist; 12815 12816 /* 12817 * Use a custom move done callback, since we need to send completion 12818 * back to the other controller, not to the backend on this side. 12819 */ 12820 io->scsiio.be_move_done = ctl_datamove_remote_dm_write_cb; 12821 12822 fe_datamove = ctl_io_port(&io->io_hdr)->fe_datamove; 12823 fe_datamove(io); 12824} 12825 12826static int 12827ctl_datamove_remote_dm_read_cb(union ctl_io *io) 12828{ 12829#if 0 12830 char str[256]; 12831 char path_str[64]; 12832 struct sbuf sb; 12833#endif 12834 uint32_t i; 12835 12836 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 12837 free(io->io_hdr.local_sglist[i].addr, M_CTL); 12838 free(io->io_hdr.remote_sglist, M_CTL); 12839 io->io_hdr.remote_sglist = NULL; 12840 io->io_hdr.local_sglist = NULL; 12841 12842#if 0 12843 scsi_path_string(io, path_str, sizeof(path_str)); 12844 sbuf_new(&sb, str, sizeof(str), SBUF_FIXEDLEN); 12845 sbuf_cat(&sb, path_str); 12846 scsi_command_string(&io->scsiio, NULL, &sb); 12847 sbuf_printf(&sb, "\n"); 12848 sbuf_cat(&sb, path_str); 12849 sbuf_printf(&sb, "Tag: 0x%04x, type %d\n", 12850 io->scsiio.tag_num, io->scsiio.tag_type); 12851 sbuf_cat(&sb, path_str); 12852 sbuf_printf(&sb, "%s: flags %#x, status %#x\n", __func__, 12853 io->io_hdr.flags, io->io_hdr.status); 12854 sbuf_finish(&sb); 12855 printk("%s", sbuf_data(&sb)); 12856#endif 12857 12858 12859 /* 12860 * The read is done, now we need to send status (good or bad) back 12861 * to the other side. 12862 */ 12863 ctl_send_datamove_done(io, /*have_lock*/ 0); 12864 12865 return (0); 12866} 12867 12868static void 12869ctl_datamove_remote_read_cb(struct ctl_ha_dt_req *rq) 12870{ 12871 union ctl_io *io; 12872 void (*fe_datamove)(union ctl_io *io); 12873 12874 io = rq->context; 12875 12876 if (rq->ret != CTL_HA_STATUS_SUCCESS) { 12877 printf("%s: ISC DMA read failed with error %d\n", __func__, 12878 rq->ret); 12879 ctl_set_internal_failure(&io->scsiio, 12880 /*sks_valid*/ 1, 12881 /*retry_count*/ rq->ret); 12882 } 12883 12884 ctl_dt_req_free(rq); 12885 12886 /* Switch the pointer over so the FETD knows what to do */ 12887 io->scsiio.kern_data_ptr = (uint8_t *)io->io_hdr.local_sglist; 12888 12889 /* 12890 * Use a custom move done callback, since we need to send completion 12891 * back to the other controller, not to the backend on this side. 12892 */ 12893 io->scsiio.be_move_done = ctl_datamove_remote_dm_read_cb; 12894 12895 /* XXX KDM add checks like the ones in ctl_datamove? */ 12896 12897 fe_datamove = ctl_io_port(&io->io_hdr)->fe_datamove; 12898 fe_datamove(io); 12899} 12900 12901static int 12902ctl_datamove_remote_sgl_setup(union ctl_io *io) 12903{ 12904 struct ctl_sg_entry *local_sglist; 12905 uint32_t len_to_go; 12906 int retval; 12907 int i; 12908 12909 retval = 0; 12910 local_sglist = io->io_hdr.local_sglist; 12911 len_to_go = io->scsiio.kern_data_len; 12912 12913 /* 12914 * The difficult thing here is that the size of the various 12915 * S/G segments may be different than the size from the 12916 * remote controller. That'll make it harder when DMAing 12917 * the data back to the other side. 12918 */ 12919 for (i = 0; len_to_go > 0; i++) { 12920 local_sglist[i].len = MIN(len_to_go, CTL_HA_DATAMOVE_SEGMENT); 12921 local_sglist[i].addr = 12922 malloc(local_sglist[i].len, M_CTL, M_WAITOK); 12923 12924 len_to_go -= local_sglist[i].len; 12925 } 12926 /* 12927 * Reset the number of S/G entries accordingly. The original 12928 * number of S/G entries is available in rem_sg_entries. 12929 */ 12930 io->scsiio.kern_sg_entries = i; 12931 12932#if 0 12933 printf("%s: kern_sg_entries = %d\n", __func__, 12934 io->scsiio.kern_sg_entries); 12935 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 12936 printf("%s: sg[%d] = %p, %lu\n", __func__, i, 12937 local_sglist[i].addr, local_sglist[i].len); 12938#endif 12939 12940 return (retval); 12941} 12942 12943static int 12944ctl_datamove_remote_xfer(union ctl_io *io, unsigned command, 12945 ctl_ha_dt_cb callback) 12946{ 12947 struct ctl_ha_dt_req *rq; 12948 struct ctl_sg_entry *remote_sglist, *local_sglist; 12949 uint32_t local_used, remote_used, total_used; 12950 int i, j, isc_ret; 12951 12952 rq = ctl_dt_req_alloc(); 12953 12954 /* 12955 * If we failed to allocate the request, and if the DMA didn't fail 12956 * anyway, set busy status. This is just a resource allocation 12957 * failure. 12958 */ 12959 if ((rq == NULL) 12960 && ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE && 12961 (io->io_hdr.status & CTL_STATUS_MASK) != CTL_SUCCESS)) 12962 ctl_set_busy(&io->scsiio); 12963 12964 if ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE && 12965 (io->io_hdr.status & CTL_STATUS_MASK) != CTL_SUCCESS) { 12966 12967 if (rq != NULL) 12968 ctl_dt_req_free(rq); 12969 12970 /* 12971 * The data move failed. We need to return status back 12972 * to the other controller. No point in trying to DMA 12973 * data to the remote controller. 12974 */ 12975 12976 ctl_send_datamove_done(io, /*have_lock*/ 0); 12977 12978 return (1); 12979 } 12980 12981 local_sglist = io->io_hdr.local_sglist; 12982 remote_sglist = io->io_hdr.remote_sglist; 12983 local_used = 0; 12984 remote_used = 0; 12985 total_used = 0; 12986 12987 /* 12988 * Pull/push the data over the wire from/to the other controller. 12989 * This takes into account the possibility that the local and 12990 * remote sglists may not be identical in terms of the size of 12991 * the elements and the number of elements. 12992 * 12993 * One fundamental assumption here is that the length allocated for 12994 * both the local and remote sglists is identical. Otherwise, we've 12995 * essentially got a coding error of some sort. 12996 */ 12997 isc_ret = CTL_HA_STATUS_SUCCESS; 12998 for (i = 0, j = 0; total_used < io->scsiio.kern_data_len; ) { 12999 uint32_t cur_len; 13000 uint8_t *tmp_ptr; 13001 13002 rq->command = command; 13003 rq->context = io; 13004 13005 /* 13006 * Both pointers should be aligned. But it is possible 13007 * that the allocation length is not. They should both 13008 * also have enough slack left over at the end, though, 13009 * to round up to the next 8 byte boundary. 13010 */ 13011 cur_len = MIN(local_sglist[i].len - local_used, 13012 remote_sglist[j].len - remote_used); 13013 rq->size = cur_len; 13014 13015 tmp_ptr = (uint8_t *)local_sglist[i].addr; 13016 tmp_ptr += local_used; 13017 13018#if 0 13019 /* Use physical addresses when talking to ISC hardware */ 13020 if ((io->io_hdr.flags & CTL_FLAG_BUS_ADDR) == 0) { 13021 /* XXX KDM use busdma */ 13022 rq->local = vtophys(tmp_ptr); 13023 } else 13024 rq->local = tmp_ptr; 13025#else 13026 KASSERT((io->io_hdr.flags & CTL_FLAG_BUS_ADDR) == 0, 13027 ("HA does not support BUS_ADDR")); 13028 rq->local = tmp_ptr; 13029#endif 13030 13031 tmp_ptr = (uint8_t *)remote_sglist[j].addr; 13032 tmp_ptr += remote_used; 13033 rq->remote = tmp_ptr; 13034 13035 rq->callback = NULL; 13036 13037 local_used += cur_len; 13038 if (local_used >= local_sglist[i].len) { 13039 i++; 13040 local_used = 0; 13041 } 13042 13043 remote_used += cur_len; 13044 if (remote_used >= remote_sglist[j].len) { 13045 j++; 13046 remote_used = 0; 13047 } 13048 total_used += cur_len; 13049 13050 if (total_used >= io->scsiio.kern_data_len) 13051 rq->callback = callback; 13052 13053#if 0 13054 printf("%s: %s: local %p remote %p size %d\n", __func__, 13055 (command == CTL_HA_DT_CMD_WRITE) ? "WRITE" : "READ", 13056 rq->local, rq->remote, rq->size); 13057#endif 13058 13059 isc_ret = ctl_dt_single(rq); 13060 if (isc_ret > CTL_HA_STATUS_SUCCESS) 13061 break; 13062 } 13063 if (isc_ret != CTL_HA_STATUS_WAIT) { 13064 rq->ret = isc_ret; 13065 callback(rq); 13066 } 13067 13068 return (0); 13069} 13070 13071static void 13072ctl_datamove_remote_read(union ctl_io *io) 13073{ 13074 int retval; 13075 uint32_t i; 13076 13077 /* 13078 * This will send an error to the other controller in the case of a 13079 * failure. 13080 */ 13081 retval = ctl_datamove_remote_sgl_setup(io); 13082 if (retval != 0) 13083 return; 13084 13085 retval = ctl_datamove_remote_xfer(io, CTL_HA_DT_CMD_READ, 13086 ctl_datamove_remote_read_cb); 13087 if (retval != 0) { 13088 /* 13089 * Make sure we free memory if there was an error.. The 13090 * ctl_datamove_remote_xfer() function will send the 13091 * datamove done message, or call the callback with an 13092 * error if there is a problem. 13093 */ 13094 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 13095 free(io->io_hdr.local_sglist[i].addr, M_CTL); 13096 free(io->io_hdr.remote_sglist, M_CTL); 13097 io->io_hdr.remote_sglist = NULL; 13098 io->io_hdr.local_sglist = NULL; 13099 } 13100} 13101 13102/* 13103 * Process a datamove request from the other controller. This is used for 13104 * XFER mode only, not SER_ONLY mode. For writes, we DMA into local memory 13105 * first. Once that is complete, the data gets DMAed into the remote 13106 * controller's memory. For reads, we DMA from the remote controller's 13107 * memory into our memory first, and then move it out to the FETD. 13108 */ 13109static void 13110ctl_datamove_remote(union ctl_io *io) 13111{ 13112 13113 mtx_assert(&control_softc->ctl_lock, MA_NOTOWNED); 13114 13115 if (io->io_hdr.flags & CTL_FLAG_FAILOVER) { 13116 ctl_failover_io(io, /*have_lock*/ 0); 13117 return; 13118 } 13119 13120 /* 13121 * Note that we look for an aborted I/O here, but don't do some of 13122 * the other checks that ctl_datamove() normally does. 13123 * We don't need to run the datamove delay code, since that should 13124 * have been done if need be on the other controller. 13125 */ 13126 if (io->io_hdr.flags & CTL_FLAG_ABORT) { 13127 printf("%s: tag 0x%04x on (%u:%u:%u) aborted\n", __func__, 13128 io->scsiio.tag_num, io->io_hdr.nexus.initid, 13129 io->io_hdr.nexus.targ_port, 13130 io->io_hdr.nexus.targ_lun); 13131 io->io_hdr.port_status = 31338; 13132 ctl_send_datamove_done(io, /*have_lock*/ 0); 13133 return; 13134 } 13135 13136 if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_OUT) 13137 ctl_datamove_remote_write(io); 13138 else if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_IN) 13139 ctl_datamove_remote_read(io); 13140 else { 13141 io->io_hdr.port_status = 31339; 13142 ctl_send_datamove_done(io, /*have_lock*/ 0); 13143 } 13144} 13145 13146static void 13147ctl_process_done(union ctl_io *io) 13148{ 13149 struct ctl_lun *lun; 13150 struct ctl_softc *softc = control_softc; 13151 void (*fe_done)(union ctl_io *io); 13152 union ctl_ha_msg msg; 13153 uint32_t targ_port = io->io_hdr.nexus.targ_port; 13154 13155 CTL_DEBUG_PRINT(("ctl_process_done\n")); 13156 fe_done = softc->ctl_ports[targ_port]->fe_done; 13157 13158#ifdef CTL_TIME_IO 13159 if ((time_uptime - io->io_hdr.start_time) > ctl_time_io_secs) { 13160 char str[256]; 13161 char path_str[64]; 13162 struct sbuf sb; 13163 13164 ctl_scsi_path_string(io, path_str, sizeof(path_str)); 13165 sbuf_new(&sb, str, sizeof(str), SBUF_FIXEDLEN); 13166 13167 sbuf_cat(&sb, path_str); 13168 switch (io->io_hdr.io_type) { 13169 case CTL_IO_SCSI: 13170 ctl_scsi_command_string(&io->scsiio, NULL, &sb); 13171 sbuf_printf(&sb, "\n"); 13172 sbuf_cat(&sb, path_str); 13173 sbuf_printf(&sb, "Tag: 0x%04x, type %d\n", 13174 io->scsiio.tag_num, io->scsiio.tag_type); 13175 break; 13176 case CTL_IO_TASK: 13177 sbuf_printf(&sb, "Task I/O type: %d, Tag: 0x%04x, " 13178 "Tag Type: %d\n", io->taskio.task_action, 13179 io->taskio.tag_num, io->taskio.tag_type); 13180 break; 13181 default: 13182 panic("%s: Invalid CTL I/O type %d\n", 13183 __func__, io->io_hdr.io_type); 13184 } 13185 sbuf_cat(&sb, path_str); 13186 sbuf_printf(&sb, "ctl_process_done: %jd seconds\n", 13187 (intmax_t)time_uptime - io->io_hdr.start_time); 13188 sbuf_finish(&sb); 13189 printf("%s", sbuf_data(&sb)); 13190 } 13191#endif /* CTL_TIME_IO */ 13192 13193 switch (io->io_hdr.io_type) { 13194 case CTL_IO_SCSI: 13195 break; 13196 case CTL_IO_TASK: 13197 if (ctl_debug & CTL_DEBUG_INFO) 13198 ctl_io_error_print(io, NULL); 13199 fe_done(io); 13200 return; 13201 default: 13202 panic("%s: Invalid CTL I/O type %d\n", 13203 __func__, io->io_hdr.io_type); 13204 } 13205 13206 lun = (struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 13207 if (lun == NULL) { 13208 CTL_DEBUG_PRINT(("NULL LUN for lun %d\n", 13209 io->io_hdr.nexus.targ_mapped_lun)); 13210 goto bailout; 13211 } 13212 13213 mtx_lock(&lun->lun_lock); 13214 13215 /* 13216 * Check to see if we have any informational exception and status 13217 * of this command can be modified to report it in form of either 13218 * RECOVERED ERROR or NO SENSE, depending on MRIE mode page field. 13219 */ 13220 if (lun->ie_reported == 0 && lun->ie_asc != 0 && 13221 io->io_hdr.status == CTL_SUCCESS && 13222 (io->io_hdr.flags & CTL_FLAG_STATUS_SENT) == 0) { 13223 uint8_t mrie = lun->MODE_IE.mrie; 13224 uint8_t per = ((lun->MODE_RWER.byte3 & SMS_RWER_PER) || 13225 (lun->MODE_VER.byte3 & SMS_VER_PER)); 13226 if (((mrie == SIEP_MRIE_REC_COND && per) || 13227 mrie == SIEP_MRIE_REC_UNCOND || 13228 mrie == SIEP_MRIE_NO_SENSE) && 13229 (ctl_get_cmd_entry(&io->scsiio, NULL)->flags & 13230 CTL_CMD_FLAG_NO_SENSE) == 0) { 13231 ctl_set_sense(&io->scsiio, 13232 /*current_error*/ 1, 13233 /*sense_key*/ (mrie == SIEP_MRIE_NO_SENSE) ? 13234 SSD_KEY_NO_SENSE : SSD_KEY_RECOVERED_ERROR, 13235 /*asc*/ lun->ie_asc, 13236 /*ascq*/ lun->ie_ascq, 13237 SSD_ELEM_NONE); 13238 lun->ie_reported = 1; 13239 } 13240 } else if (lun->ie_reported < 0) 13241 lun->ie_reported = 0; 13242 13243 /* 13244 * Check to see if we have any errors to inject here. We only 13245 * inject errors for commands that don't already have errors set. 13246 */ 13247 if (!STAILQ_EMPTY(&lun->error_list) && 13248 ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS) && 13249 ((io->io_hdr.flags & CTL_FLAG_STATUS_SENT) == 0)) 13250 ctl_inject_error(lun, io); 13251 13252 /* 13253 * XXX KDM how do we treat commands that aren't completed 13254 * successfully? 13255 * 13256 * XXX KDM should we also track I/O latency? 13257 */ 13258 if ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS && 13259 io->io_hdr.io_type == CTL_IO_SCSI) { 13260#ifdef CTL_TIME_IO 13261 struct bintime cur_bt; 13262#endif 13263 int type; 13264 13265 if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == 13266 CTL_FLAG_DATA_IN) 13267 type = CTL_STATS_READ; 13268 else if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == 13269 CTL_FLAG_DATA_OUT) 13270 type = CTL_STATS_WRITE; 13271 else 13272 type = CTL_STATS_NO_IO; 13273 13274 lun->stats.ports[targ_port].bytes[type] += 13275 io->scsiio.kern_total_len; 13276 lun->stats.ports[targ_port].operations[type]++; 13277#ifdef CTL_TIME_IO 13278 bintime_add(&lun->stats.ports[targ_port].dma_time[type], 13279 &io->io_hdr.dma_bt); 13280 getbinuptime(&cur_bt); 13281 bintime_sub(&cur_bt, &io->io_hdr.start_bt); 13282 bintime_add(&lun->stats.ports[targ_port].time[type], &cur_bt); 13283#endif 13284 lun->stats.ports[targ_port].num_dmas[type] += 13285 io->io_hdr.num_dmas; 13286 } 13287 13288 /* 13289 * Remove this from the OOA queue. 13290 */ 13291 TAILQ_REMOVE(&lun->ooa_queue, &io->io_hdr, ooa_links); 13292#ifdef CTL_TIME_IO 13293 if (TAILQ_EMPTY(&lun->ooa_queue)) 13294 lun->last_busy = getsbinuptime(); 13295#endif 13296 13297 /* 13298 * Run through the blocked queue on this LUN and see if anything 13299 * has become unblocked, now that this transaction is done. 13300 */ 13301 ctl_check_blocked(lun); 13302 13303 /* 13304 * If the LUN has been invalidated, free it if there is nothing 13305 * left on its OOA queue. 13306 */ 13307 if ((lun->flags & CTL_LUN_INVALID) 13308 && TAILQ_EMPTY(&lun->ooa_queue)) { 13309 mtx_unlock(&lun->lun_lock); 13310 mtx_lock(&softc->ctl_lock); 13311 ctl_free_lun(lun); 13312 mtx_unlock(&softc->ctl_lock); 13313 } else 13314 mtx_unlock(&lun->lun_lock); 13315 13316bailout: 13317 13318 /* 13319 * If this command has been aborted, make sure we set the status 13320 * properly. The FETD is responsible for freeing the I/O and doing 13321 * whatever it needs to do to clean up its state. 13322 */ 13323 if (io->io_hdr.flags & CTL_FLAG_ABORT) 13324 ctl_set_task_aborted(&io->scsiio); 13325 13326 /* 13327 * If enabled, print command error status. 13328 */ 13329 if ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_SUCCESS && 13330 (ctl_debug & CTL_DEBUG_INFO) != 0) 13331 ctl_io_error_print(io, NULL); 13332 13333 /* 13334 * Tell the FETD or the other shelf controller we're done with this 13335 * command. Note that only SCSI commands get to this point. Task 13336 * management commands are completed above. 13337 */ 13338 if ((softc->ha_mode != CTL_HA_MODE_XFER) && 13339 (io->io_hdr.flags & CTL_FLAG_SENT_2OTHER_SC)) { 13340 memset(&msg, 0, sizeof(msg)); 13341 msg.hdr.msg_type = CTL_MSG_FINISH_IO; 13342 msg.hdr.serializing_sc = io->io_hdr.serializing_sc; 13343 msg.hdr.nexus = io->io_hdr.nexus; 13344 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, 13345 sizeof(msg.scsi) - sizeof(msg.scsi.sense_data), 13346 M_WAITOK); 13347 } 13348 13349 fe_done(io); 13350} 13351 13352#ifdef CTL_WITH_CA 13353/* 13354 * Front end should call this if it doesn't do autosense. When the request 13355 * sense comes back in from the initiator, we'll dequeue this and send it. 13356 */ 13357int 13358ctl_queue_sense(union ctl_io *io) 13359{ 13360 struct ctl_lun *lun; 13361 struct ctl_port *port; 13362 struct ctl_softc *softc; 13363 uint32_t initidx, targ_lun; 13364 13365 softc = control_softc; 13366 13367 CTL_DEBUG_PRINT(("ctl_queue_sense\n")); 13368 13369 /* 13370 * LUN lookup will likely move to the ctl_work_thread() once we 13371 * have our new queueing infrastructure (that doesn't put things on 13372 * a per-LUN queue initially). That is so that we can handle 13373 * things like an INQUIRY to a LUN that we don't have enabled. We 13374 * can't deal with that right now. 13375 */ 13376 mtx_lock(&softc->ctl_lock); 13377 13378 /* 13379 * If we don't have a LUN for this, just toss the sense 13380 * information. 13381 */ 13382 port = ctl_io_port(&ctsio->io_hdr); 13383 targ_lun = ctl_lun_map_from_port(port, io->io_hdr.nexus.targ_lun); 13384 if ((targ_lun < CTL_MAX_LUNS) 13385 && (softc->ctl_luns[targ_lun] != NULL)) 13386 lun = softc->ctl_luns[targ_lun]; 13387 else 13388 goto bailout; 13389 13390 initidx = ctl_get_initindex(&io->io_hdr.nexus); 13391 13392 mtx_lock(&lun->lun_lock); 13393 /* 13394 * Already have CA set for this LUN...toss the sense information. 13395 */ 13396 if (ctl_is_set(lun->have_ca, initidx)) { 13397 mtx_unlock(&lun->lun_lock); 13398 goto bailout; 13399 } 13400 13401 memcpy(&lun->pending_sense[initidx], &io->scsiio.sense_data, 13402 MIN(sizeof(lun->pending_sense[initidx]), 13403 sizeof(io->scsiio.sense_data))); 13404 ctl_set_mask(lun->have_ca, initidx); 13405 mtx_unlock(&lun->lun_lock); 13406 13407bailout: 13408 mtx_unlock(&softc->ctl_lock); 13409 13410 ctl_free_io(io); 13411 13412 return (CTL_RETVAL_COMPLETE); 13413} 13414#endif 13415 13416/* 13417 * Primary command inlet from frontend ports. All SCSI and task I/O 13418 * requests must go through this function. 13419 */ 13420int 13421ctl_queue(union ctl_io *io) 13422{ 13423 struct ctl_port *port; 13424 13425 CTL_DEBUG_PRINT(("ctl_queue cdb[0]=%02X\n", io->scsiio.cdb[0])); 13426 13427#ifdef CTL_TIME_IO 13428 io->io_hdr.start_time = time_uptime; 13429 getbinuptime(&io->io_hdr.start_bt); 13430#endif /* CTL_TIME_IO */ 13431 13432 /* Map FE-specific LUN ID into global one. */ 13433 port = ctl_io_port(&io->io_hdr); 13434 io->io_hdr.nexus.targ_mapped_lun = 13435 ctl_lun_map_from_port(port, io->io_hdr.nexus.targ_lun); 13436 13437 switch (io->io_hdr.io_type) { 13438 case CTL_IO_SCSI: 13439 case CTL_IO_TASK: 13440 if (ctl_debug & CTL_DEBUG_CDB) 13441 ctl_io_print(io); 13442 ctl_enqueue_incoming(io); 13443 break; 13444 default: 13445 printf("ctl_queue: unknown I/O type %d\n", io->io_hdr.io_type); 13446 return (EINVAL); 13447 } 13448 13449 return (CTL_RETVAL_COMPLETE); 13450} 13451 13452#ifdef CTL_IO_DELAY 13453static void 13454ctl_done_timer_wakeup(void *arg) 13455{ 13456 union ctl_io *io; 13457 13458 io = (union ctl_io *)arg; 13459 ctl_done(io); 13460} 13461#endif /* CTL_IO_DELAY */ 13462 13463void 13464ctl_serseq_done(union ctl_io *io) 13465{ 13466 struct ctl_lun *lun; 13467 13468 lun = (struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 13469 if (lun->be_lun == NULL || 13470 lun->be_lun->serseq == CTL_LUN_SERSEQ_OFF) 13471 return; 13472 mtx_lock(&lun->lun_lock); 13473 io->io_hdr.flags |= CTL_FLAG_SERSEQ_DONE; 13474 ctl_check_blocked(lun); 13475 mtx_unlock(&lun->lun_lock); 13476} 13477 13478void 13479ctl_done(union ctl_io *io) 13480{ 13481 13482 /* 13483 * Enable this to catch duplicate completion issues. 13484 */ 13485#if 0 13486 if (io->io_hdr.flags & CTL_FLAG_ALREADY_DONE) { 13487 printf("%s: type %d msg %d cdb %x iptl: " 13488 "%u:%u:%u tag 0x%04x " 13489 "flag %#x status %x\n", 13490 __func__, 13491 io->io_hdr.io_type, 13492 io->io_hdr.msg_type, 13493 io->scsiio.cdb[0], 13494 io->io_hdr.nexus.initid, 13495 io->io_hdr.nexus.targ_port, 13496 io->io_hdr.nexus.targ_lun, 13497 (io->io_hdr.io_type == 13498 CTL_IO_TASK) ? 13499 io->taskio.tag_num : 13500 io->scsiio.tag_num, 13501 io->io_hdr.flags, 13502 io->io_hdr.status); 13503 } else 13504 io->io_hdr.flags |= CTL_FLAG_ALREADY_DONE; 13505#endif 13506 13507 /* 13508 * This is an internal copy of an I/O, and should not go through 13509 * the normal done processing logic. 13510 */ 13511 if (io->io_hdr.flags & CTL_FLAG_INT_COPY) 13512 return; 13513 13514#ifdef CTL_IO_DELAY 13515 if (io->io_hdr.flags & CTL_FLAG_DELAY_DONE) { 13516 io->io_hdr.flags &= ~CTL_FLAG_DELAY_DONE; 13517 } else { 13518 struct ctl_lun *lun; 13519 13520 lun =(struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 13521 13522 if ((lun != NULL) 13523 && (lun->delay_info.done_delay > 0)) { 13524 13525 callout_init(&io->io_hdr.delay_callout, /*mpsafe*/ 1); 13526 io->io_hdr.flags |= CTL_FLAG_DELAY_DONE; 13527 callout_reset(&io->io_hdr.delay_callout, 13528 lun->delay_info.done_delay * hz, 13529 ctl_done_timer_wakeup, io); 13530 if (lun->delay_info.done_type == CTL_DELAY_TYPE_ONESHOT) 13531 lun->delay_info.done_delay = 0; 13532 return; 13533 } 13534 } 13535#endif /* CTL_IO_DELAY */ 13536 13537 ctl_enqueue_done(io); 13538} 13539 13540static void 13541ctl_work_thread(void *arg) 13542{ 13543 struct ctl_thread *thr = (struct ctl_thread *)arg; 13544 struct ctl_softc *softc = thr->ctl_softc; 13545 union ctl_io *io; 13546 int retval; 13547 13548 CTL_DEBUG_PRINT(("ctl_work_thread starting\n")); 13549 13550 for (;;) { 13551 /* 13552 * We handle the queues in this order: 13553 * - ISC 13554 * - done queue (to free up resources, unblock other commands) 13555 * - RtR queue 13556 * - incoming queue 13557 * 13558 * If those queues are empty, we break out of the loop and 13559 * go to sleep. 13560 */ 13561 mtx_lock(&thr->queue_lock); 13562 io = (union ctl_io *)STAILQ_FIRST(&thr->isc_queue); 13563 if (io != NULL) { 13564 STAILQ_REMOVE_HEAD(&thr->isc_queue, links); 13565 mtx_unlock(&thr->queue_lock); 13566 ctl_handle_isc(io); 13567 continue; 13568 } 13569 io = (union ctl_io *)STAILQ_FIRST(&thr->done_queue); 13570 if (io != NULL) { 13571 STAILQ_REMOVE_HEAD(&thr->done_queue, links); 13572 /* clear any blocked commands, call fe_done */ 13573 mtx_unlock(&thr->queue_lock); 13574 ctl_process_done(io); 13575 continue; 13576 } 13577 io = (union ctl_io *)STAILQ_FIRST(&thr->incoming_queue); 13578 if (io != NULL) { 13579 STAILQ_REMOVE_HEAD(&thr->incoming_queue, links); 13580 mtx_unlock(&thr->queue_lock); 13581 if (io->io_hdr.io_type == CTL_IO_TASK) 13582 ctl_run_task(io); 13583 else 13584 ctl_scsiio_precheck(softc, &io->scsiio); 13585 continue; 13586 } 13587 io = (union ctl_io *)STAILQ_FIRST(&thr->rtr_queue); 13588 if (io != NULL) { 13589 STAILQ_REMOVE_HEAD(&thr->rtr_queue, links); 13590 mtx_unlock(&thr->queue_lock); 13591 retval = ctl_scsiio(&io->scsiio); 13592 if (retval != CTL_RETVAL_COMPLETE) 13593 CTL_DEBUG_PRINT(("ctl_scsiio failed\n")); 13594 continue; 13595 } 13596 13597 /* Sleep until we have something to do. */ 13598 mtx_sleep(thr, &thr->queue_lock, PDROP | PRIBIO, "-", 0); 13599 } 13600} 13601 13602static void 13603ctl_lun_thread(void *arg) 13604{ 13605 struct ctl_softc *softc = (struct ctl_softc *)arg; 13606 struct ctl_be_lun *be_lun; 13607 13608 CTL_DEBUG_PRINT(("ctl_lun_thread starting\n")); 13609 13610 for (;;) { 13611 mtx_lock(&softc->ctl_lock); 13612 be_lun = STAILQ_FIRST(&softc->pending_lun_queue); 13613 if (be_lun != NULL) { 13614 STAILQ_REMOVE_HEAD(&softc->pending_lun_queue, links); 13615 mtx_unlock(&softc->ctl_lock); 13616 ctl_create_lun(be_lun); 13617 continue; 13618 } 13619 13620 /* Sleep until we have something to do. */ 13621 mtx_sleep(&softc->pending_lun_queue, &softc->ctl_lock, 13622 PDROP | PRIBIO, "-", 0); 13623 } 13624} 13625 13626static void 13627ctl_thresh_thread(void *arg) 13628{ 13629 struct ctl_softc *softc = (struct ctl_softc *)arg; 13630 struct ctl_lun *lun; 13631 struct ctl_logical_block_provisioning_page *page; 13632 const char *attr; 13633 union ctl_ha_msg msg; 13634 uint64_t thres, val; 13635 int i, e, set; 13636 13637 CTL_DEBUG_PRINT(("ctl_thresh_thread starting\n")); 13638 13639 for (;;) { 13640 mtx_lock(&softc->ctl_lock); 13641 STAILQ_FOREACH(lun, &softc->lun_list, links) { 13642 if ((lun->flags & CTL_LUN_DISABLED) || 13643 (lun->flags & CTL_LUN_NO_MEDIA) || 13644 lun->backend->lun_attr == NULL) 13645 continue; 13646 if ((lun->flags & CTL_LUN_PRIMARY_SC) == 0 && 13647 softc->ha_mode == CTL_HA_MODE_XFER) 13648 continue; 13649 if ((lun->MODE_RWER.byte8 & SMS_RWER_LBPERE) == 0) 13650 continue; 13651 e = 0; 13652 page = &lun->MODE_LBP; 13653 for (i = 0; i < CTL_NUM_LBP_THRESH; i++) { 13654 if ((page->descr[i].flags & SLBPPD_ENABLED) == 0) 13655 continue; 13656 thres = scsi_4btoul(page->descr[i].count); 13657 thres <<= CTL_LBP_EXPONENT; 13658 switch (page->descr[i].resource) { 13659 case 0x01: 13660 attr = "blocksavail"; 13661 break; 13662 case 0x02: 13663 attr = "blocksused"; 13664 break; 13665 case 0xf1: 13666 attr = "poolblocksavail"; 13667 break; 13668 case 0xf2: 13669 attr = "poolblocksused"; 13670 break; 13671 default: 13672 continue; 13673 } 13674 mtx_unlock(&softc->ctl_lock); // XXX 13675 val = lun->backend->lun_attr( 13676 lun->be_lun->be_lun, attr); 13677 mtx_lock(&softc->ctl_lock); 13678 if (val == UINT64_MAX) 13679 continue; 13680 if ((page->descr[i].flags & SLBPPD_ARMING_MASK) 13681 == SLBPPD_ARMING_INC) 13682 e = (val >= thres); 13683 else 13684 e = (val <= thres); 13685 if (e) 13686 break; 13687 } 13688 mtx_lock(&lun->lun_lock); 13689 if (e) { 13690 scsi_u64to8b((uint8_t *)&page->descr[i] - 13691 (uint8_t *)page, lun->ua_tpt_info); 13692 if (lun->lasttpt == 0 || 13693 time_uptime - lun->lasttpt >= CTL_LBP_UA_PERIOD) { 13694 lun->lasttpt = time_uptime; 13695 ctl_est_ua_all(lun, -1, CTL_UA_THIN_PROV_THRES); 13696 set = 1; 13697 } else 13698 set = 0; 13699 } else { 13700 lun->lasttpt = 0; 13701 ctl_clr_ua_all(lun, -1, CTL_UA_THIN_PROV_THRES); 13702 set = -1; 13703 } 13704 mtx_unlock(&lun->lun_lock); 13705 if (set != 0 && 13706 lun->ctl_softc->ha_mode == CTL_HA_MODE_XFER) { 13707 /* Send msg to other side. */ 13708 bzero(&msg.ua, sizeof(msg.ua)); 13709 msg.hdr.msg_type = CTL_MSG_UA; 13710 msg.hdr.nexus.initid = -1; 13711 msg.hdr.nexus.targ_port = -1; 13712 msg.hdr.nexus.targ_lun = lun->lun; 13713 msg.hdr.nexus.targ_mapped_lun = lun->lun; 13714 msg.ua.ua_all = 1; 13715 msg.ua.ua_set = (set > 0); 13716 msg.ua.ua_type = CTL_UA_THIN_PROV_THRES; 13717 memcpy(msg.ua.ua_info, lun->ua_tpt_info, 8); 13718 mtx_unlock(&softc->ctl_lock); // XXX 13719 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, 13720 sizeof(msg.ua), M_WAITOK); 13721 mtx_lock(&softc->ctl_lock); 13722 } 13723 } 13724 mtx_unlock(&softc->ctl_lock); 13725 pause("-", CTL_LBP_PERIOD * hz); 13726 } 13727} 13728 13729static void 13730ctl_enqueue_incoming(union ctl_io *io) 13731{ 13732 struct ctl_softc *softc = control_softc; 13733 struct ctl_thread *thr; 13734 u_int idx; 13735 13736 idx = (io->io_hdr.nexus.targ_port * 127 + 13737 io->io_hdr.nexus.initid) % worker_threads; 13738 thr = &softc->threads[idx]; 13739 mtx_lock(&thr->queue_lock); 13740 STAILQ_INSERT_TAIL(&thr->incoming_queue, &io->io_hdr, links); 13741 mtx_unlock(&thr->queue_lock); 13742 wakeup(thr); 13743} 13744 13745static void 13746ctl_enqueue_rtr(union ctl_io *io) 13747{ 13748 struct ctl_softc *softc = control_softc; 13749 struct ctl_thread *thr; 13750 13751 thr = &softc->threads[io->io_hdr.nexus.targ_mapped_lun % worker_threads]; 13752 mtx_lock(&thr->queue_lock); 13753 STAILQ_INSERT_TAIL(&thr->rtr_queue, &io->io_hdr, links); 13754 mtx_unlock(&thr->queue_lock); 13755 wakeup(thr); 13756} 13757 13758static void 13759ctl_enqueue_done(union ctl_io *io) 13760{ 13761 struct ctl_softc *softc = control_softc; 13762 struct ctl_thread *thr; 13763 13764 thr = &softc->threads[io->io_hdr.nexus.targ_mapped_lun % worker_threads]; 13765 mtx_lock(&thr->queue_lock); 13766 STAILQ_INSERT_TAIL(&thr->done_queue, &io->io_hdr, links); 13767 mtx_unlock(&thr->queue_lock); 13768 wakeup(thr); 13769} 13770 13771static void 13772ctl_enqueue_isc(union ctl_io *io) 13773{ 13774 struct ctl_softc *softc = control_softc; 13775 struct ctl_thread *thr; 13776 13777 thr = &softc->threads[io->io_hdr.nexus.targ_mapped_lun % worker_threads]; 13778 mtx_lock(&thr->queue_lock); 13779 STAILQ_INSERT_TAIL(&thr->isc_queue, &io->io_hdr, links); 13780 mtx_unlock(&thr->queue_lock); 13781 wakeup(thr); 13782} 13783 13784/* 13785 * vim: ts=8 13786 */ 13787