ctl.c revision 288810
1/*- 2 * Copyright (c) 2003-2009 Silicon Graphics International Corp. 3 * Copyright (c) 2012 The FreeBSD Foundation 4 * Copyright (c) 2015 Alexander Motin <mav@FreeBSD.org> 5 * All rights reserved. 6 * 7 * Portions of this software were developed by Edward Tomasz Napierala 8 * under sponsorship from the FreeBSD Foundation. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions, and the following disclaimer, 15 * without modification. 16 * 2. Redistributions in binary form must reproduce at minimum a disclaimer 17 * substantially similar to the "NO WARRANTY" disclaimer below 18 * ("Disclaimer") and any redistribution must be conditioned upon 19 * including a substantially similar Disclaimer requirement for further 20 * binary redistribution. 21 * 22 * NO WARRANTY 23 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 24 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 25 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR 26 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 27 * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 31 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 32 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 33 * POSSIBILITY OF SUCH DAMAGES. 34 * 35 * $Id$ 36 */ 37/* 38 * CAM Target Layer, a SCSI device emulation subsystem. 39 * 40 * Author: Ken Merry <ken@FreeBSD.org> 41 */ 42 43#define _CTL_C 44 45#include <sys/cdefs.h> 46__FBSDID("$FreeBSD: stable/10/sys/cam/ctl/ctl.c 288810 2015-10-05 11:30:18Z 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 copan_debugconf_subpage debugconf_page_default = { 97 DBGCNF_PAGE_CODE | SMPH_SPF, /* page_code */ 98 DBGCNF_SUBPAGE_CODE, /* subpage */ 99 {(sizeof(struct copan_debugconf_subpage) - 4) >> 8, 100 (sizeof(struct copan_debugconf_subpage) - 4) >> 0}, /* page_length */ 101 DBGCNF_VERSION, /* page_version */ 102 {CTL_TIME_IO_DEFAULT_SECS>>8, 103 CTL_TIME_IO_DEFAULT_SECS>>0}, /* ctl_time_io_secs */ 104}; 105 106const static struct copan_debugconf_subpage debugconf_page_changeable = { 107 DBGCNF_PAGE_CODE | SMPH_SPF, /* page_code */ 108 DBGCNF_SUBPAGE_CODE, /* subpage */ 109 {(sizeof(struct copan_debugconf_subpage) - 4) >> 8, 110 (sizeof(struct copan_debugconf_subpage) - 4) >> 0}, /* page_length */ 111 0, /* page_version */ 112 {0xff,0xff}, /* ctl_time_io_secs */ 113}; 114 115const static struct scsi_da_rw_recovery_page rw_er_page_default = { 116 /*page_code*/SMS_RW_ERROR_RECOVERY_PAGE, 117 /*page_length*/sizeof(struct scsi_da_rw_recovery_page) - 2, 118 /*byte3*/SMS_RWER_AWRE|SMS_RWER_ARRE, 119 /*read_retry_count*/0, 120 /*correction_span*/0, 121 /*head_offset_count*/0, 122 /*data_strobe_offset_cnt*/0, 123 /*byte8*/SMS_RWER_LBPERE, 124 /*write_retry_count*/0, 125 /*reserved2*/0, 126 /*recovery_time_limit*/{0, 0}, 127}; 128 129const static struct scsi_da_rw_recovery_page rw_er_page_changeable = { 130 /*page_code*/SMS_RW_ERROR_RECOVERY_PAGE, 131 /*page_length*/sizeof(struct scsi_da_rw_recovery_page) - 2, 132 /*byte3*/0, 133 /*read_retry_count*/0, 134 /*correction_span*/0, 135 /*head_offset_count*/0, 136 /*data_strobe_offset_cnt*/0, 137 /*byte8*/0, 138 /*write_retry_count*/0, 139 /*reserved2*/0, 140 /*recovery_time_limit*/{0, 0}, 141}; 142 143const static struct scsi_format_page format_page_default = { 144 /*page_code*/SMS_FORMAT_DEVICE_PAGE, 145 /*page_length*/sizeof(struct scsi_format_page) - 2, 146 /*tracks_per_zone*/ {0, 0}, 147 /*alt_sectors_per_zone*/ {0, 0}, 148 /*alt_tracks_per_zone*/ {0, 0}, 149 /*alt_tracks_per_lun*/ {0, 0}, 150 /*sectors_per_track*/ {(CTL_DEFAULT_SECTORS_PER_TRACK >> 8) & 0xff, 151 CTL_DEFAULT_SECTORS_PER_TRACK & 0xff}, 152 /*bytes_per_sector*/ {0, 0}, 153 /*interleave*/ {0, 0}, 154 /*track_skew*/ {0, 0}, 155 /*cylinder_skew*/ {0, 0}, 156 /*flags*/ SFP_HSEC, 157 /*reserved*/ {0, 0, 0} 158}; 159 160const static struct scsi_format_page format_page_changeable = { 161 /*page_code*/SMS_FORMAT_DEVICE_PAGE, 162 /*page_length*/sizeof(struct scsi_format_page) - 2, 163 /*tracks_per_zone*/ {0, 0}, 164 /*alt_sectors_per_zone*/ {0, 0}, 165 /*alt_tracks_per_zone*/ {0, 0}, 166 /*alt_tracks_per_lun*/ {0, 0}, 167 /*sectors_per_track*/ {0, 0}, 168 /*bytes_per_sector*/ {0, 0}, 169 /*interleave*/ {0, 0}, 170 /*track_skew*/ {0, 0}, 171 /*cylinder_skew*/ {0, 0}, 172 /*flags*/ 0, 173 /*reserved*/ {0, 0, 0} 174}; 175 176const static struct scsi_rigid_disk_page rigid_disk_page_default = { 177 /*page_code*/SMS_RIGID_DISK_PAGE, 178 /*page_length*/sizeof(struct scsi_rigid_disk_page) - 2, 179 /*cylinders*/ {0, 0, 0}, 180 /*heads*/ CTL_DEFAULT_HEADS, 181 /*start_write_precomp*/ {0, 0, 0}, 182 /*start_reduced_current*/ {0, 0, 0}, 183 /*step_rate*/ {0, 0}, 184 /*landing_zone_cylinder*/ {0, 0, 0}, 185 /*rpl*/ SRDP_RPL_DISABLED, 186 /*rotational_offset*/ 0, 187 /*reserved1*/ 0, 188 /*rotation_rate*/ {(CTL_DEFAULT_ROTATION_RATE >> 8) & 0xff, 189 CTL_DEFAULT_ROTATION_RATE & 0xff}, 190 /*reserved2*/ {0, 0} 191}; 192 193const static struct scsi_rigid_disk_page rigid_disk_page_changeable = { 194 /*page_code*/SMS_RIGID_DISK_PAGE, 195 /*page_length*/sizeof(struct scsi_rigid_disk_page) - 2, 196 /*cylinders*/ {0, 0, 0}, 197 /*heads*/ 0, 198 /*start_write_precomp*/ {0, 0, 0}, 199 /*start_reduced_current*/ {0, 0, 0}, 200 /*step_rate*/ {0, 0}, 201 /*landing_zone_cylinder*/ {0, 0, 0}, 202 /*rpl*/ 0, 203 /*rotational_offset*/ 0, 204 /*reserved1*/ 0, 205 /*rotation_rate*/ {0, 0}, 206 /*reserved2*/ {0, 0} 207}; 208 209const static struct scsi_caching_page caching_page_default = { 210 /*page_code*/SMS_CACHING_PAGE, 211 /*page_length*/sizeof(struct scsi_caching_page) - 2, 212 /*flags1*/ SCP_DISC | SCP_WCE, 213 /*ret_priority*/ 0, 214 /*disable_pf_transfer_len*/ {0xff, 0xff}, 215 /*min_prefetch*/ {0, 0}, 216 /*max_prefetch*/ {0xff, 0xff}, 217 /*max_pf_ceiling*/ {0xff, 0xff}, 218 /*flags2*/ 0, 219 /*cache_segments*/ 0, 220 /*cache_seg_size*/ {0, 0}, 221 /*reserved*/ 0, 222 /*non_cache_seg_size*/ {0, 0, 0} 223}; 224 225const static struct scsi_caching_page caching_page_changeable = { 226 /*page_code*/SMS_CACHING_PAGE, 227 /*page_length*/sizeof(struct scsi_caching_page) - 2, 228 /*flags1*/ SCP_WCE | SCP_RCD, 229 /*ret_priority*/ 0, 230 /*disable_pf_transfer_len*/ {0, 0}, 231 /*min_prefetch*/ {0, 0}, 232 /*max_prefetch*/ {0, 0}, 233 /*max_pf_ceiling*/ {0, 0}, 234 /*flags2*/ 0, 235 /*cache_segments*/ 0, 236 /*cache_seg_size*/ {0, 0}, 237 /*reserved*/ 0, 238 /*non_cache_seg_size*/ {0, 0, 0} 239}; 240 241const static struct scsi_control_page control_page_default = { 242 /*page_code*/SMS_CONTROL_MODE_PAGE, 243 /*page_length*/sizeof(struct scsi_control_page) - 2, 244 /*rlec*/0, 245 /*queue_flags*/SCP_QUEUE_ALG_RESTRICTED, 246 /*eca_and_aen*/0, 247 /*flags4*/SCP_TAS, 248 /*aen_holdoff_period*/{0, 0}, 249 /*busy_timeout_period*/{0, 0}, 250 /*extended_selftest_completion_time*/{0, 0} 251}; 252 253const static struct scsi_control_page control_page_changeable = { 254 /*page_code*/SMS_CONTROL_MODE_PAGE, 255 /*page_length*/sizeof(struct scsi_control_page) - 2, 256 /*rlec*/SCP_DSENSE, 257 /*queue_flags*/SCP_QUEUE_ALG_MASK, 258 /*eca_and_aen*/SCP_SWP, 259 /*flags4*/0, 260 /*aen_holdoff_period*/{0, 0}, 261 /*busy_timeout_period*/{0, 0}, 262 /*extended_selftest_completion_time*/{0, 0} 263}; 264 265#define CTL_CEM_LEN (sizeof(struct scsi_control_ext_page) - 4) 266 267const static struct scsi_control_ext_page control_ext_page_default = { 268 /*page_code*/SMS_CONTROL_MODE_PAGE | SMPH_SPF, 269 /*subpage_code*/0x01, 270 /*page_length*/{CTL_CEM_LEN >> 8, CTL_CEM_LEN}, 271 /*flags*/0, 272 /*prio*/0, 273 /*max_sense*/0 274}; 275 276const static struct scsi_control_ext_page control_ext_page_changeable = { 277 /*page_code*/SMS_CONTROL_MODE_PAGE | SMPH_SPF, 278 /*subpage_code*/0x01, 279 /*page_length*/{CTL_CEM_LEN >> 8, CTL_CEM_LEN}, 280 /*flags*/0, 281 /*prio*/0, 282 /*max_sense*/0 283}; 284 285const static struct scsi_info_exceptions_page ie_page_default = { 286 /*page_code*/SMS_INFO_EXCEPTIONS_PAGE, 287 /*page_length*/sizeof(struct scsi_info_exceptions_page) - 2, 288 /*info_flags*/SIEP_FLAGS_DEXCPT, 289 /*mrie*/0, 290 /*interval_timer*/{0, 0, 0, 0}, 291 /*report_count*/{0, 0, 0, 0} 292}; 293 294const static struct scsi_info_exceptions_page ie_page_changeable = { 295 /*page_code*/SMS_INFO_EXCEPTIONS_PAGE, 296 /*page_length*/sizeof(struct scsi_info_exceptions_page) - 2, 297 /*info_flags*/0, 298 /*mrie*/0, 299 /*interval_timer*/{0, 0, 0, 0}, 300 /*report_count*/{0, 0, 0, 0} 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*/0, 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 357SYSCTL_NODE(_kern_cam, OID_AUTO, ctl, CTLFLAG_RD, 0, "CAM Target Layer"); 358static int worker_threads = -1; 359TUNABLE_INT("kern.cam.ctl.worker_threads", &worker_threads); 360SYSCTL_INT(_kern_cam_ctl, OID_AUTO, worker_threads, CTLFLAG_RDTUN, 361 &worker_threads, 1, "Number of worker threads"); 362static int ctl_debug = CTL_DEBUG_NONE; 363TUNABLE_INT("kern.cam.ctl.debug", &ctl_debug); 364SYSCTL_INT(_kern_cam_ctl, OID_AUTO, debug, CTLFLAG_RWTUN, 365 &ctl_debug, 0, "Enabled debug flags"); 366 367/* 368 * Supported pages (0x00), Serial number (0x80), Device ID (0x83), 369 * Extended INQUIRY Data (0x86), Mode Page Policy (0x87), 370 * SCSI Ports (0x88), Third-party Copy (0x8F), Block limits (0xB0), 371 * Block Device Characteristics (0xB1) and Logical Block Provisioning (0xB2) 372 */ 373#define SCSI_EVPD_NUM_SUPPORTED_PAGES 10 374 375static void ctl_isc_event_handler(ctl_ha_channel chanel, ctl_ha_event event, 376 int param); 377static void ctl_copy_sense_data(union ctl_ha_msg *src, union ctl_io *dest); 378static void ctl_copy_sense_data_back(union ctl_io *src, union ctl_ha_msg *dest); 379static int ctl_init(void); 380void ctl_shutdown(void); 381static int ctl_open(struct cdev *dev, int flags, int fmt, struct thread *td); 382static int ctl_close(struct cdev *dev, int flags, int fmt, struct thread *td); 383static int ctl_serialize_other_sc_cmd(struct ctl_scsiio *ctsio); 384static void ctl_ioctl_fill_ooa(struct ctl_lun *lun, uint32_t *cur_fill_num, 385 struct ctl_ooa *ooa_hdr, 386 struct ctl_ooa_entry *kern_entries); 387static int ctl_ioctl(struct cdev *dev, u_long cmd, caddr_t addr, int flag, 388 struct thread *td); 389static int ctl_alloc_lun(struct ctl_softc *ctl_softc, struct ctl_lun *lun, 390 struct ctl_be_lun *be_lun); 391static int ctl_free_lun(struct ctl_lun *lun); 392static void ctl_create_lun(struct ctl_be_lun *be_lun); 393static struct ctl_port * ctl_io_port(struct ctl_io_hdr *io_hdr); 394 395static int ctl_do_mode_select(union ctl_io *io); 396static int ctl_pro_preempt(struct ctl_softc *softc, struct ctl_lun *lun, 397 uint64_t res_key, uint64_t sa_res_key, 398 uint8_t type, uint32_t residx, 399 struct ctl_scsiio *ctsio, 400 struct scsi_per_res_out *cdb, 401 struct scsi_per_res_out_parms* param); 402static void ctl_pro_preempt_other(struct ctl_lun *lun, 403 union ctl_ha_msg *msg); 404static void ctl_hndl_per_res_out_on_other_sc(union ctl_ha_msg *msg); 405static int ctl_inquiry_evpd_supported(struct ctl_scsiio *ctsio, int alloc_len); 406static int ctl_inquiry_evpd_serial(struct ctl_scsiio *ctsio, int alloc_len); 407static int ctl_inquiry_evpd_devid(struct ctl_scsiio *ctsio, int alloc_len); 408static int ctl_inquiry_evpd_eid(struct ctl_scsiio *ctsio, int alloc_len); 409static int ctl_inquiry_evpd_mpp(struct ctl_scsiio *ctsio, int alloc_len); 410static int ctl_inquiry_evpd_scsi_ports(struct ctl_scsiio *ctsio, 411 int alloc_len); 412static int ctl_inquiry_evpd_block_limits(struct ctl_scsiio *ctsio, 413 int alloc_len); 414static int ctl_inquiry_evpd_bdc(struct ctl_scsiio *ctsio, int alloc_len); 415static int ctl_inquiry_evpd_lbp(struct ctl_scsiio *ctsio, int alloc_len); 416static int ctl_inquiry_evpd(struct ctl_scsiio *ctsio); 417static int ctl_inquiry_std(struct ctl_scsiio *ctsio); 418static int ctl_get_lba_len(union ctl_io *io, uint64_t *lba, uint64_t *len); 419static ctl_action ctl_extent_check(union ctl_io *io1, union ctl_io *io2, 420 bool seq); 421static ctl_action ctl_extent_check_seq(union ctl_io *io1, union ctl_io *io2); 422static ctl_action ctl_check_for_blockage(struct ctl_lun *lun, 423 union ctl_io *pending_io, union ctl_io *ooa_io); 424static ctl_action ctl_check_ooa(struct ctl_lun *lun, union ctl_io *pending_io, 425 union ctl_io *starting_io); 426static int ctl_check_blocked(struct ctl_lun *lun); 427static int ctl_scsiio_lun_check(struct ctl_lun *lun, 428 const struct ctl_cmd_entry *entry, 429 struct ctl_scsiio *ctsio); 430static void ctl_failover_lun(union ctl_io *io); 431static int ctl_scsiio_precheck(struct ctl_softc *ctl_softc, 432 struct ctl_scsiio *ctsio); 433static int ctl_scsiio(struct ctl_scsiio *ctsio); 434 435static int ctl_bus_reset(struct ctl_softc *ctl_softc, union ctl_io *io); 436static int ctl_target_reset(struct ctl_softc *ctl_softc, union ctl_io *io, 437 ctl_ua_type ua_type); 438static int ctl_do_lun_reset(struct ctl_lun *lun, union ctl_io *io, 439 ctl_ua_type ua_type); 440static int ctl_lun_reset(struct ctl_softc *ctl_softc, union ctl_io *io); 441static int ctl_abort_task(union ctl_io *io); 442static int ctl_abort_task_set(union ctl_io *io); 443static int ctl_query_task(union ctl_io *io, int task_set); 444static int ctl_i_t_nexus_reset(union ctl_io *io); 445static int ctl_query_async_event(union ctl_io *io); 446static void ctl_run_task(union ctl_io *io); 447#ifdef CTL_IO_DELAY 448static void ctl_datamove_timer_wakeup(void *arg); 449static void ctl_done_timer_wakeup(void *arg); 450#endif /* CTL_IO_DELAY */ 451 452static void ctl_send_datamove_done(union ctl_io *io, int have_lock); 453static void ctl_datamove_remote_write_cb(struct ctl_ha_dt_req *rq); 454static int ctl_datamove_remote_dm_write_cb(union ctl_io *io); 455static void ctl_datamove_remote_write(union ctl_io *io); 456static int ctl_datamove_remote_dm_read_cb(union ctl_io *io); 457static void ctl_datamove_remote_read_cb(struct ctl_ha_dt_req *rq); 458static int ctl_datamove_remote_sgl_setup(union ctl_io *io); 459static int ctl_datamove_remote_xfer(union ctl_io *io, unsigned command, 460 ctl_ha_dt_cb callback); 461static void ctl_datamove_remote_read(union ctl_io *io); 462static void ctl_datamove_remote(union ctl_io *io); 463static void ctl_process_done(union ctl_io *io); 464static void ctl_lun_thread(void *arg); 465static void ctl_thresh_thread(void *arg); 466static void ctl_work_thread(void *arg); 467static void ctl_enqueue_incoming(union ctl_io *io); 468static void ctl_enqueue_rtr(union ctl_io *io); 469static void ctl_enqueue_done(union ctl_io *io); 470static void ctl_enqueue_isc(union ctl_io *io); 471static const struct ctl_cmd_entry * 472 ctl_get_cmd_entry(struct ctl_scsiio *ctsio, int *sa); 473static const struct ctl_cmd_entry * 474 ctl_validate_command(struct ctl_scsiio *ctsio); 475static int ctl_cmd_applicable(uint8_t lun_type, 476 const struct ctl_cmd_entry *entry); 477 478static uint64_t ctl_get_prkey(struct ctl_lun *lun, uint32_t residx); 479static void ctl_clr_prkey(struct ctl_lun *lun, uint32_t residx); 480static void ctl_alloc_prkey(struct ctl_lun *lun, uint32_t residx); 481static void ctl_set_prkey(struct ctl_lun *lun, uint32_t residx, uint64_t key); 482 483/* 484 * Load the serialization table. This isn't very pretty, but is probably 485 * the easiest way to do it. 486 */ 487#include "ctl_ser_table.c" 488 489/* 490 * We only need to define open, close and ioctl routines for this driver. 491 */ 492static struct cdevsw ctl_cdevsw = { 493 .d_version = D_VERSION, 494 .d_flags = 0, 495 .d_open = ctl_open, 496 .d_close = ctl_close, 497 .d_ioctl = ctl_ioctl, 498 .d_name = "ctl", 499}; 500 501 502MALLOC_DEFINE(M_CTL, "ctlmem", "Memory used for CTL"); 503 504static int ctl_module_event_handler(module_t, int /*modeventtype_t*/, void *); 505 506static moduledata_t ctl_moduledata = { 507 "ctl", 508 ctl_module_event_handler, 509 NULL 510}; 511 512DECLARE_MODULE(ctl, ctl_moduledata, SI_SUB_CONFIGURE, SI_ORDER_THIRD); 513MODULE_VERSION(ctl, 1); 514 515static struct ctl_frontend ha_frontend = 516{ 517 .name = "ha", 518}; 519 520static void 521ctl_ha_datamove(union ctl_io *io) 522{ 523 struct ctl_lun *lun; 524 struct ctl_sg_entry *sgl; 525 union ctl_ha_msg msg; 526 uint32_t sg_entries_sent; 527 int do_sg_copy, i, j; 528 529 lun = (struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 530 memset(&msg.dt, 0, sizeof(msg.dt)); 531 msg.hdr.msg_type = CTL_MSG_DATAMOVE; 532 msg.hdr.original_sc = io->io_hdr.original_sc; 533 msg.hdr.serializing_sc = io; 534 msg.hdr.nexus = io->io_hdr.nexus; 535 msg.hdr.status = io->io_hdr.status; 536 msg.dt.flags = io->io_hdr.flags; 537 538 /* 539 * We convert everything into a S/G list here. We can't 540 * pass by reference, only by value between controllers. 541 * So we can't pass a pointer to the S/G list, only as many 542 * S/G entries as we can fit in here. If it's possible for 543 * us to get more than CTL_HA_MAX_SG_ENTRIES S/G entries, 544 * then we need to break this up into multiple transfers. 545 */ 546 if (io->scsiio.kern_sg_entries == 0) { 547 msg.dt.kern_sg_entries = 1; 548#if 0 549 if (io->io_hdr.flags & CTL_FLAG_BUS_ADDR) { 550 msg.dt.sg_list[0].addr = io->scsiio.kern_data_ptr; 551 } else { 552 /* XXX KDM use busdma here! */ 553 msg.dt.sg_list[0].addr = 554 (void *)vtophys(io->scsiio.kern_data_ptr); 555 } 556#else 557 KASSERT((io->io_hdr.flags & CTL_FLAG_BUS_ADDR) == 0, 558 ("HA does not support BUS_ADDR")); 559 msg.dt.sg_list[0].addr = io->scsiio.kern_data_ptr; 560#endif 561 msg.dt.sg_list[0].len = io->scsiio.kern_data_len; 562 do_sg_copy = 0; 563 } else { 564 msg.dt.kern_sg_entries = io->scsiio.kern_sg_entries; 565 do_sg_copy = 1; 566 } 567 568 msg.dt.kern_data_len = io->scsiio.kern_data_len; 569 msg.dt.kern_total_len = io->scsiio.kern_total_len; 570 msg.dt.kern_data_resid = io->scsiio.kern_data_resid; 571 msg.dt.kern_rel_offset = io->scsiio.kern_rel_offset; 572 msg.dt.sg_sequence = 0; 573 574 /* 575 * Loop until we've sent all of the S/G entries. On the 576 * other end, we'll recompose these S/G entries into one 577 * contiguous list before processing. 578 */ 579 for (sg_entries_sent = 0; sg_entries_sent < msg.dt.kern_sg_entries; 580 msg.dt.sg_sequence++) { 581 msg.dt.cur_sg_entries = MIN((sizeof(msg.dt.sg_list) / 582 sizeof(msg.dt.sg_list[0])), 583 msg.dt.kern_sg_entries - sg_entries_sent); 584 if (do_sg_copy != 0) { 585 sgl = (struct ctl_sg_entry *)io->scsiio.kern_data_ptr; 586 for (i = sg_entries_sent, j = 0; 587 i < msg.dt.cur_sg_entries; i++, j++) { 588#if 0 589 if (io->io_hdr.flags & CTL_FLAG_BUS_ADDR) { 590 msg.dt.sg_list[j].addr = sgl[i].addr; 591 } else { 592 /* XXX KDM use busdma here! */ 593 msg.dt.sg_list[j].addr = 594 (void *)vtophys(sgl[i].addr); 595 } 596#else 597 KASSERT((io->io_hdr.flags & 598 CTL_FLAG_BUS_ADDR) == 0, 599 ("HA does not support BUS_ADDR")); 600 msg.dt.sg_list[j].addr = sgl[i].addr; 601#endif 602 msg.dt.sg_list[j].len = sgl[i].len; 603 } 604 } 605 606 sg_entries_sent += msg.dt.cur_sg_entries; 607 msg.dt.sg_last = (sg_entries_sent >= msg.dt.kern_sg_entries); 608 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, 609 sizeof(msg.dt) - sizeof(msg.dt.sg_list) + 610 sizeof(struct ctl_sg_entry) * msg.dt.cur_sg_entries, 611 M_WAITOK) > CTL_HA_STATUS_SUCCESS) { 612 io->io_hdr.port_status = 31341; 613 io->scsiio.be_move_done(io); 614 return; 615 } 616 msg.dt.sent_sg_entries = sg_entries_sent; 617 } 618 619 /* 620 * Officially handover the request from us to peer. 621 * If failover has just happened, then we must return error. 622 * If failover happen just after, then it is not our problem. 623 */ 624 if (lun) 625 mtx_lock(&lun->lun_lock); 626 if (io->io_hdr.flags & CTL_FLAG_FAILOVER) { 627 if (lun) 628 mtx_unlock(&lun->lun_lock); 629 io->io_hdr.port_status = 31342; 630 io->scsiio.be_move_done(io); 631 return; 632 } 633 io->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 634 io->io_hdr.flags |= CTL_FLAG_DMA_INPROG; 635 if (lun) 636 mtx_unlock(&lun->lun_lock); 637} 638 639static void 640ctl_ha_done(union ctl_io *io) 641{ 642 union ctl_ha_msg msg; 643 644 if (io->io_hdr.io_type == CTL_IO_SCSI) { 645 memset(&msg, 0, sizeof(msg)); 646 msg.hdr.msg_type = CTL_MSG_FINISH_IO; 647 msg.hdr.original_sc = io->io_hdr.original_sc; 648 msg.hdr.nexus = io->io_hdr.nexus; 649 msg.hdr.status = io->io_hdr.status; 650 msg.scsi.scsi_status = io->scsiio.scsi_status; 651 msg.scsi.tag_num = io->scsiio.tag_num; 652 msg.scsi.tag_type = io->scsiio.tag_type; 653 msg.scsi.sense_len = io->scsiio.sense_len; 654 msg.scsi.sense_residual = io->scsiio.sense_residual; 655 msg.scsi.residual = io->scsiio.residual; 656 memcpy(&msg.scsi.sense_data, &io->scsiio.sense_data, 657 io->scsiio.sense_len); 658 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, 659 sizeof(msg.scsi) - sizeof(msg.scsi.sense_data) + 660 msg.scsi.sense_len, M_WAITOK); 661 } 662 ctl_free_io(io); 663} 664 665static void 666ctl_isc_handler_finish_xfer(struct ctl_softc *ctl_softc, 667 union ctl_ha_msg *msg_info) 668{ 669 struct ctl_scsiio *ctsio; 670 671 if (msg_info->hdr.original_sc == NULL) { 672 printf("%s: original_sc == NULL!\n", __func__); 673 /* XXX KDM now what? */ 674 return; 675 } 676 677 ctsio = &msg_info->hdr.original_sc->scsiio; 678 ctsio->io_hdr.flags |= CTL_FLAG_IO_ACTIVE; 679 ctsio->io_hdr.msg_type = CTL_MSG_FINISH_IO; 680 ctsio->io_hdr.status = msg_info->hdr.status; 681 ctsio->scsi_status = msg_info->scsi.scsi_status; 682 ctsio->sense_len = msg_info->scsi.sense_len; 683 ctsio->sense_residual = msg_info->scsi.sense_residual; 684 ctsio->residual = msg_info->scsi.residual; 685 memcpy(&ctsio->sense_data, &msg_info->scsi.sense_data, 686 msg_info->scsi.sense_len); 687 ctl_enqueue_isc((union ctl_io *)ctsio); 688} 689 690static void 691ctl_isc_handler_finish_ser_only(struct ctl_softc *ctl_softc, 692 union ctl_ha_msg *msg_info) 693{ 694 struct ctl_scsiio *ctsio; 695 696 if (msg_info->hdr.serializing_sc == NULL) { 697 printf("%s: serializing_sc == NULL!\n", __func__); 698 /* XXX KDM now what? */ 699 return; 700 } 701 702 ctsio = &msg_info->hdr.serializing_sc->scsiio; 703 ctsio->io_hdr.msg_type = CTL_MSG_FINISH_IO; 704 ctl_enqueue_isc((union ctl_io *)ctsio); 705} 706 707void 708ctl_isc_announce_lun(struct ctl_lun *lun) 709{ 710 struct ctl_softc *softc = lun->ctl_softc; 711 union ctl_ha_msg *msg; 712 struct ctl_ha_msg_lun_pr_key pr_key; 713 int i, k; 714 715 if (softc->ha_link != CTL_HA_LINK_ONLINE) 716 return; 717 mtx_lock(&lun->lun_lock); 718 i = sizeof(msg->lun); 719 if (lun->lun_devid) 720 i += lun->lun_devid->len; 721 i += sizeof(pr_key) * lun->pr_key_count; 722alloc: 723 mtx_unlock(&lun->lun_lock); 724 msg = malloc(i, M_CTL, M_WAITOK); 725 mtx_lock(&lun->lun_lock); 726 k = sizeof(msg->lun); 727 if (lun->lun_devid) 728 k += lun->lun_devid->len; 729 k += sizeof(pr_key) * lun->pr_key_count; 730 if (i < k) { 731 free(msg, M_CTL); 732 i = k; 733 goto alloc; 734 } 735 bzero(&msg->lun, sizeof(msg->lun)); 736 msg->hdr.msg_type = CTL_MSG_LUN_SYNC; 737 msg->hdr.nexus.targ_lun = lun->lun; 738 msg->hdr.nexus.targ_mapped_lun = lun->lun; 739 msg->lun.flags = lun->flags; 740 msg->lun.pr_generation = lun->PRGeneration; 741 msg->lun.pr_res_idx = lun->pr_res_idx; 742 msg->lun.pr_res_type = lun->res_type; 743 msg->lun.pr_key_count = lun->pr_key_count; 744 i = 0; 745 if (lun->lun_devid) { 746 msg->lun.lun_devid_len = lun->lun_devid->len; 747 memcpy(&msg->lun.data[i], lun->lun_devid->data, 748 msg->lun.lun_devid_len); 749 i += msg->lun.lun_devid_len; 750 } 751 for (k = 0; k < CTL_MAX_INITIATORS; k++) { 752 if ((pr_key.pr_key = ctl_get_prkey(lun, k)) == 0) 753 continue; 754 pr_key.pr_iid = k; 755 memcpy(&msg->lun.data[i], &pr_key, sizeof(pr_key)); 756 i += sizeof(pr_key); 757 } 758 mtx_unlock(&lun->lun_lock); 759 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg->port, sizeof(msg->port) + i, 760 M_WAITOK); 761 free(msg, M_CTL); 762 763 if (lun->flags & CTL_LUN_PRIMARY_SC) { 764 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 765 ctl_isc_announce_mode(lun, -1, 766 lun->mode_pages.index[i].page_code & SMPH_PC_MASK, 767 lun->mode_pages.index[i].subpage); 768 } 769 } 770} 771 772void 773ctl_isc_announce_port(struct ctl_port *port) 774{ 775 struct ctl_softc *softc = port->ctl_softc; 776 union ctl_ha_msg *msg; 777 int i; 778 779 if (port->targ_port < softc->port_min || 780 port->targ_port >= softc->port_max || 781 softc->ha_link != CTL_HA_LINK_ONLINE) 782 return; 783 i = sizeof(msg->port) + strlen(port->port_name) + 1; 784 if (port->lun_map) 785 i += sizeof(uint32_t) * CTL_MAX_LUNS; 786 if (port->port_devid) 787 i += port->port_devid->len; 788 if (port->target_devid) 789 i += port->target_devid->len; 790 if (port->init_devid) 791 i += port->init_devid->len; 792 msg = malloc(i, M_CTL, M_WAITOK); 793 bzero(&msg->port, sizeof(msg->port)); 794 msg->hdr.msg_type = CTL_MSG_PORT_SYNC; 795 msg->hdr.nexus.targ_port = port->targ_port; 796 msg->port.port_type = port->port_type; 797 msg->port.physical_port = port->physical_port; 798 msg->port.virtual_port = port->virtual_port; 799 msg->port.status = port->status; 800 i = 0; 801 msg->port.name_len = sprintf(&msg->port.data[i], 802 "%d:%s", softc->ha_id, port->port_name) + 1; 803 i += msg->port.name_len; 804 if (port->lun_map) { 805 msg->port.lun_map_len = sizeof(uint32_t) * CTL_MAX_LUNS; 806 memcpy(&msg->port.data[i], port->lun_map, 807 msg->port.lun_map_len); 808 i += msg->port.lun_map_len; 809 } 810 if (port->port_devid) { 811 msg->port.port_devid_len = port->port_devid->len; 812 memcpy(&msg->port.data[i], port->port_devid->data, 813 msg->port.port_devid_len); 814 i += msg->port.port_devid_len; 815 } 816 if (port->target_devid) { 817 msg->port.target_devid_len = port->target_devid->len; 818 memcpy(&msg->port.data[i], port->target_devid->data, 819 msg->port.target_devid_len); 820 i += msg->port.target_devid_len; 821 } 822 if (port->init_devid) { 823 msg->port.init_devid_len = port->init_devid->len; 824 memcpy(&msg->port.data[i], port->init_devid->data, 825 msg->port.init_devid_len); 826 i += msg->port.init_devid_len; 827 } 828 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg->port, sizeof(msg->port) + i, 829 M_WAITOK); 830 free(msg, M_CTL); 831} 832 833void 834ctl_isc_announce_iid(struct ctl_port *port, int iid) 835{ 836 struct ctl_softc *softc = port->ctl_softc; 837 union ctl_ha_msg *msg; 838 int i, l; 839 840 if (port->targ_port < softc->port_min || 841 port->targ_port >= softc->port_max || 842 softc->ha_link != CTL_HA_LINK_ONLINE) 843 return; 844 mtx_lock(&softc->ctl_lock); 845 i = sizeof(msg->iid); 846 l = 0; 847 if (port->wwpn_iid[iid].name) 848 l = strlen(port->wwpn_iid[iid].name) + 1; 849 i += l; 850 msg = malloc(i, M_CTL, M_NOWAIT); 851 if (msg == NULL) { 852 mtx_unlock(&softc->ctl_lock); 853 return; 854 } 855 bzero(&msg->iid, sizeof(msg->iid)); 856 msg->hdr.msg_type = CTL_MSG_IID_SYNC; 857 msg->hdr.nexus.targ_port = port->targ_port; 858 msg->hdr.nexus.initid = iid; 859 msg->iid.in_use = port->wwpn_iid[iid].in_use; 860 msg->iid.name_len = l; 861 msg->iid.wwpn = port->wwpn_iid[iid].wwpn; 862 if (port->wwpn_iid[iid].name) 863 strlcpy(msg->iid.data, port->wwpn_iid[iid].name, l); 864 mtx_unlock(&softc->ctl_lock); 865 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg->iid, i, M_NOWAIT); 866 free(msg, M_CTL); 867} 868 869void 870ctl_isc_announce_mode(struct ctl_lun *lun, uint32_t initidx, 871 uint8_t page, uint8_t subpage) 872{ 873 struct ctl_softc *softc = lun->ctl_softc; 874 union ctl_ha_msg msg; 875 int i; 876 877 if (softc->ha_link != CTL_HA_LINK_ONLINE) 878 return; 879 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 880 if ((lun->mode_pages.index[i].page_code & SMPH_PC_MASK) == 881 page && lun->mode_pages.index[i].subpage == subpage) 882 break; 883 } 884 if (i == CTL_NUM_MODE_PAGES) 885 return; 886 bzero(&msg.mode, sizeof(msg.mode)); 887 msg.hdr.msg_type = CTL_MSG_MODE_SYNC; 888 msg.hdr.nexus.targ_port = initidx / CTL_MAX_INIT_PER_PORT; 889 msg.hdr.nexus.initid = initidx % CTL_MAX_INIT_PER_PORT; 890 msg.hdr.nexus.targ_lun = lun->lun; 891 msg.hdr.nexus.targ_mapped_lun = lun->lun; 892 msg.mode.page_code = page; 893 msg.mode.subpage = subpage; 894 msg.mode.page_len = lun->mode_pages.index[i].page_len; 895 memcpy(msg.mode.data, lun->mode_pages.index[i].page_data, 896 msg.mode.page_len); 897 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg.mode, sizeof(msg.mode), 898 M_WAITOK); 899} 900 901static void 902ctl_isc_ha_link_up(struct ctl_softc *softc) 903{ 904 struct ctl_port *port; 905 struct ctl_lun *lun; 906 union ctl_ha_msg msg; 907 int i; 908 909 /* Announce this node parameters to peer for validation. */ 910 msg.login.msg_type = CTL_MSG_LOGIN; 911 msg.login.version = CTL_HA_VERSION; 912 msg.login.ha_mode = softc->ha_mode; 913 msg.login.ha_id = softc->ha_id; 914 msg.login.max_luns = CTL_MAX_LUNS; 915 msg.login.max_ports = CTL_MAX_PORTS; 916 msg.login.max_init_per_port = CTL_MAX_INIT_PER_PORT; 917 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg.login, sizeof(msg.login), 918 M_WAITOK); 919 920 STAILQ_FOREACH(port, &softc->port_list, links) { 921 ctl_isc_announce_port(port); 922 for (i = 0; i < CTL_MAX_INIT_PER_PORT; i++) { 923 if (port->wwpn_iid[i].in_use) 924 ctl_isc_announce_iid(port, i); 925 } 926 } 927 STAILQ_FOREACH(lun, &softc->lun_list, links) 928 ctl_isc_announce_lun(lun); 929} 930 931static void 932ctl_isc_ha_link_down(struct ctl_softc *softc) 933{ 934 struct ctl_port *port; 935 struct ctl_lun *lun; 936 union ctl_io *io; 937 int i; 938 939 mtx_lock(&softc->ctl_lock); 940 STAILQ_FOREACH(lun, &softc->lun_list, links) { 941 mtx_lock(&lun->lun_lock); 942 if (lun->flags & CTL_LUN_PEER_SC_PRIMARY) { 943 lun->flags &= ~CTL_LUN_PEER_SC_PRIMARY; 944 ctl_est_ua_all(lun, -1, CTL_UA_ASYM_ACC_CHANGE); 945 } 946 mtx_unlock(&lun->lun_lock); 947 948 mtx_unlock(&softc->ctl_lock); 949 io = ctl_alloc_io(softc->othersc_pool); 950 mtx_lock(&softc->ctl_lock); 951 ctl_zero_io(io); 952 io->io_hdr.msg_type = CTL_MSG_FAILOVER; 953 io->io_hdr.nexus.targ_mapped_lun = lun->lun; 954 ctl_enqueue_isc(io); 955 } 956 957 STAILQ_FOREACH(port, &softc->port_list, links) { 958 if (port->targ_port >= softc->port_min && 959 port->targ_port < softc->port_max) 960 continue; 961 port->status &= ~CTL_PORT_STATUS_ONLINE; 962 for (i = 0; i < CTL_MAX_INIT_PER_PORT; i++) { 963 port->wwpn_iid[i].in_use = 0; 964 free(port->wwpn_iid[i].name, M_CTL); 965 port->wwpn_iid[i].name = NULL; 966 } 967 } 968 mtx_unlock(&softc->ctl_lock); 969} 970 971static void 972ctl_isc_ua(struct ctl_softc *softc, union ctl_ha_msg *msg, int len) 973{ 974 struct ctl_lun *lun; 975 uint32_t iid = ctl_get_initindex(&msg->hdr.nexus); 976 977 mtx_lock(&softc->ctl_lock); 978 if (msg->hdr.nexus.targ_lun < CTL_MAX_LUNS && 979 (lun = softc->ctl_luns[msg->hdr.nexus.targ_mapped_lun]) != NULL) { 980 mtx_lock(&lun->lun_lock); 981 mtx_unlock(&softc->ctl_lock); 982 if (msg->ua.ua_type == CTL_UA_THIN_PROV_THRES && 983 msg->ua.ua_set) 984 memcpy(lun->ua_tpt_info, msg->ua.ua_info, 8); 985 if (msg->ua.ua_all) { 986 if (msg->ua.ua_set) 987 ctl_est_ua_all(lun, iid, msg->ua.ua_type); 988 else 989 ctl_clr_ua_all(lun, iid, msg->ua.ua_type); 990 } else { 991 if (msg->ua.ua_set) 992 ctl_est_ua(lun, iid, msg->ua.ua_type); 993 else 994 ctl_clr_ua(lun, iid, msg->ua.ua_type); 995 } 996 mtx_unlock(&lun->lun_lock); 997 } else 998 mtx_unlock(&softc->ctl_lock); 999} 1000 1001static void 1002ctl_isc_lun_sync(struct ctl_softc *softc, union ctl_ha_msg *msg, int len) 1003{ 1004 struct ctl_lun *lun; 1005 struct ctl_ha_msg_lun_pr_key pr_key; 1006 int i, k; 1007 ctl_lun_flags oflags; 1008 uint32_t targ_lun; 1009 1010 targ_lun = msg->hdr.nexus.targ_mapped_lun; 1011 mtx_lock(&softc->ctl_lock); 1012 if ((targ_lun >= CTL_MAX_LUNS) || 1013 ((lun = softc->ctl_luns[targ_lun]) == NULL)) { 1014 mtx_unlock(&softc->ctl_lock); 1015 return; 1016 } 1017 mtx_lock(&lun->lun_lock); 1018 mtx_unlock(&softc->ctl_lock); 1019 if (lun->flags & CTL_LUN_DISABLED) { 1020 mtx_unlock(&lun->lun_lock); 1021 return; 1022 } 1023 i = (lun->lun_devid != NULL) ? lun->lun_devid->len : 0; 1024 if (msg->lun.lun_devid_len != i || (i > 0 && 1025 memcmp(&msg->lun.data[0], lun->lun_devid->data, i) != 0)) { 1026 mtx_unlock(&lun->lun_lock); 1027 printf("%s: Received conflicting HA LUN %d\n", 1028 __func__, msg->hdr.nexus.targ_lun); 1029 return; 1030 } else { 1031 /* Record whether peer is primary. */ 1032 oflags = lun->flags; 1033 if ((msg->lun.flags & CTL_LUN_PRIMARY_SC) && 1034 (msg->lun.flags & CTL_LUN_DISABLED) == 0) 1035 lun->flags |= CTL_LUN_PEER_SC_PRIMARY; 1036 else 1037 lun->flags &= ~CTL_LUN_PEER_SC_PRIMARY; 1038 if (oflags != lun->flags) 1039 ctl_est_ua_all(lun, -1, CTL_UA_ASYM_ACC_CHANGE); 1040 1041 /* If peer is primary and we are not -- use data */ 1042 if ((lun->flags & CTL_LUN_PRIMARY_SC) == 0 && 1043 (lun->flags & CTL_LUN_PEER_SC_PRIMARY)) { 1044 lun->PRGeneration = msg->lun.pr_generation; 1045 lun->pr_res_idx = msg->lun.pr_res_idx; 1046 lun->res_type = msg->lun.pr_res_type; 1047 lun->pr_key_count = msg->lun.pr_key_count; 1048 for (k = 0; k < CTL_MAX_INITIATORS; k++) 1049 ctl_clr_prkey(lun, k); 1050 for (k = 0; k < msg->lun.pr_key_count; k++) { 1051 memcpy(&pr_key, &msg->lun.data[i], 1052 sizeof(pr_key)); 1053 ctl_alloc_prkey(lun, pr_key.pr_iid); 1054 ctl_set_prkey(lun, pr_key.pr_iid, 1055 pr_key.pr_key); 1056 i += sizeof(pr_key); 1057 } 1058 } 1059 1060 mtx_unlock(&lun->lun_lock); 1061 CTL_DEBUG_PRINT(("%s: Known LUN %d, peer is %s\n", 1062 __func__, msg->hdr.nexus.targ_lun, 1063 (msg->lun.flags & CTL_LUN_PRIMARY_SC) ? 1064 "primary" : "secondary")); 1065 1066 /* If we are primary but peer doesn't know -- notify */ 1067 if ((lun->flags & CTL_LUN_PRIMARY_SC) && 1068 (msg->lun.flags & CTL_LUN_PEER_SC_PRIMARY) == 0) 1069 ctl_isc_announce_lun(lun); 1070 } 1071} 1072 1073static void 1074ctl_isc_port_sync(struct ctl_softc *softc, union ctl_ha_msg *msg, int len) 1075{ 1076 struct ctl_port *port; 1077 struct ctl_lun *lun; 1078 int i, new; 1079 1080 port = softc->ctl_ports[msg->hdr.nexus.targ_port]; 1081 if (port == NULL) { 1082 CTL_DEBUG_PRINT(("%s: New port %d\n", __func__, 1083 msg->hdr.nexus.targ_port)); 1084 new = 1; 1085 port = malloc(sizeof(*port), M_CTL, M_WAITOK | M_ZERO); 1086 port->frontend = &ha_frontend; 1087 port->targ_port = msg->hdr.nexus.targ_port; 1088 port->fe_datamove = ctl_ha_datamove; 1089 port->fe_done = ctl_ha_done; 1090 } else if (port->frontend == &ha_frontend) { 1091 CTL_DEBUG_PRINT(("%s: Updated port %d\n", __func__, 1092 msg->hdr.nexus.targ_port)); 1093 new = 0; 1094 } else { 1095 printf("%s: Received conflicting HA port %d\n", 1096 __func__, msg->hdr.nexus.targ_port); 1097 return; 1098 } 1099 port->port_type = msg->port.port_type; 1100 port->physical_port = msg->port.physical_port; 1101 port->virtual_port = msg->port.virtual_port; 1102 port->status = msg->port.status; 1103 i = 0; 1104 free(port->port_name, M_CTL); 1105 port->port_name = strndup(&msg->port.data[i], msg->port.name_len, 1106 M_CTL); 1107 i += msg->port.name_len; 1108 if (msg->port.lun_map_len != 0) { 1109 if (port->lun_map == NULL) 1110 port->lun_map = malloc(sizeof(uint32_t) * CTL_MAX_LUNS, 1111 M_CTL, M_WAITOK); 1112 memcpy(port->lun_map, &msg->port.data[i], 1113 sizeof(uint32_t) * CTL_MAX_LUNS); 1114 i += msg->port.lun_map_len; 1115 } else { 1116 free(port->lun_map, M_CTL); 1117 port->lun_map = NULL; 1118 } 1119 if (msg->port.port_devid_len != 0) { 1120 if (port->port_devid == NULL || 1121 port->port_devid->len != msg->port.port_devid_len) { 1122 free(port->port_devid, M_CTL); 1123 port->port_devid = malloc(sizeof(struct ctl_devid) + 1124 msg->port.port_devid_len, M_CTL, M_WAITOK); 1125 } 1126 memcpy(port->port_devid->data, &msg->port.data[i], 1127 msg->port.port_devid_len); 1128 port->port_devid->len = msg->port.port_devid_len; 1129 i += msg->port.port_devid_len; 1130 } else { 1131 free(port->port_devid, M_CTL); 1132 port->port_devid = NULL; 1133 } 1134 if (msg->port.target_devid_len != 0) { 1135 if (port->target_devid == NULL || 1136 port->target_devid->len != msg->port.target_devid_len) { 1137 free(port->target_devid, M_CTL); 1138 port->target_devid = malloc(sizeof(struct ctl_devid) + 1139 msg->port.target_devid_len, M_CTL, M_WAITOK); 1140 } 1141 memcpy(port->target_devid->data, &msg->port.data[i], 1142 msg->port.target_devid_len); 1143 port->target_devid->len = msg->port.target_devid_len; 1144 i += msg->port.target_devid_len; 1145 } else { 1146 free(port->target_devid, M_CTL); 1147 port->target_devid = NULL; 1148 } 1149 if (msg->port.init_devid_len != 0) { 1150 if (port->init_devid == NULL || 1151 port->init_devid->len != msg->port.init_devid_len) { 1152 free(port->init_devid, M_CTL); 1153 port->init_devid = malloc(sizeof(struct ctl_devid) + 1154 msg->port.init_devid_len, M_CTL, M_WAITOK); 1155 } 1156 memcpy(port->init_devid->data, &msg->port.data[i], 1157 msg->port.init_devid_len); 1158 port->init_devid->len = msg->port.init_devid_len; 1159 i += msg->port.init_devid_len; 1160 } else { 1161 free(port->init_devid, M_CTL); 1162 port->init_devid = NULL; 1163 } 1164 if (new) { 1165 if (ctl_port_register(port) != 0) { 1166 printf("%s: ctl_port_register() failed with error\n", 1167 __func__); 1168 } 1169 } 1170 mtx_lock(&softc->ctl_lock); 1171 STAILQ_FOREACH(lun, &softc->lun_list, links) { 1172 if (ctl_lun_map_to_port(port, lun->lun) >= CTL_MAX_LUNS) 1173 continue; 1174 mtx_lock(&lun->lun_lock); 1175 ctl_est_ua_all(lun, -1, CTL_UA_INQ_CHANGE); 1176 mtx_unlock(&lun->lun_lock); 1177 } 1178 mtx_unlock(&softc->ctl_lock); 1179} 1180 1181static void 1182ctl_isc_iid_sync(struct ctl_softc *softc, union ctl_ha_msg *msg, int len) 1183{ 1184 struct ctl_port *port; 1185 int iid; 1186 1187 port = softc->ctl_ports[msg->hdr.nexus.targ_port]; 1188 if (port == NULL) { 1189 printf("%s: Received IID for unknown port %d\n", 1190 __func__, msg->hdr.nexus.targ_port); 1191 return; 1192 } 1193 iid = msg->hdr.nexus.initid; 1194 port->wwpn_iid[iid].in_use = msg->iid.in_use; 1195 port->wwpn_iid[iid].wwpn = msg->iid.wwpn; 1196 free(port->wwpn_iid[iid].name, M_CTL); 1197 if (msg->iid.name_len) { 1198 port->wwpn_iid[iid].name = strndup(&msg->iid.data[0], 1199 msg->iid.name_len, M_CTL); 1200 } else 1201 port->wwpn_iid[iid].name = NULL; 1202} 1203 1204static void 1205ctl_isc_login(struct ctl_softc *softc, union ctl_ha_msg *msg, int len) 1206{ 1207 1208 if (msg->login.version != CTL_HA_VERSION) { 1209 printf("CTL HA peers have different versions %d != %d\n", 1210 msg->login.version, CTL_HA_VERSION); 1211 ctl_ha_msg_abort(CTL_HA_CHAN_CTL); 1212 return; 1213 } 1214 if (msg->login.ha_mode != softc->ha_mode) { 1215 printf("CTL HA peers have different ha_mode %d != %d\n", 1216 msg->login.ha_mode, softc->ha_mode); 1217 ctl_ha_msg_abort(CTL_HA_CHAN_CTL); 1218 return; 1219 } 1220 if (msg->login.ha_id == softc->ha_id) { 1221 printf("CTL HA peers have same ha_id %d\n", msg->login.ha_id); 1222 ctl_ha_msg_abort(CTL_HA_CHAN_CTL); 1223 return; 1224 } 1225 if (msg->login.max_luns != CTL_MAX_LUNS || 1226 msg->login.max_ports != CTL_MAX_PORTS || 1227 msg->login.max_init_per_port != CTL_MAX_INIT_PER_PORT) { 1228 printf("CTL HA peers have different limits\n"); 1229 ctl_ha_msg_abort(CTL_HA_CHAN_CTL); 1230 return; 1231 } 1232} 1233 1234static void 1235ctl_isc_mode_sync(struct ctl_softc *softc, union ctl_ha_msg *msg, int len) 1236{ 1237 struct ctl_lun *lun; 1238 int i; 1239 uint32_t initidx, targ_lun; 1240 1241 targ_lun = msg->hdr.nexus.targ_mapped_lun; 1242 mtx_lock(&softc->ctl_lock); 1243 if ((targ_lun >= CTL_MAX_LUNS) || 1244 ((lun = softc->ctl_luns[targ_lun]) == NULL)) { 1245 mtx_unlock(&softc->ctl_lock); 1246 return; 1247 } 1248 mtx_lock(&lun->lun_lock); 1249 mtx_unlock(&softc->ctl_lock); 1250 if (lun->flags & CTL_LUN_DISABLED) { 1251 mtx_unlock(&lun->lun_lock); 1252 return; 1253 } 1254 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 1255 if ((lun->mode_pages.index[i].page_code & SMPH_PC_MASK) == 1256 msg->mode.page_code && 1257 lun->mode_pages.index[i].subpage == msg->mode.subpage) 1258 break; 1259 } 1260 if (i == CTL_NUM_MODE_PAGES) { 1261 mtx_unlock(&lun->lun_lock); 1262 return; 1263 } 1264 memcpy(lun->mode_pages.index[i].page_data, msg->mode.data, 1265 lun->mode_pages.index[i].page_len); 1266 initidx = ctl_get_initindex(&msg->hdr.nexus); 1267 if (initidx != -1) 1268 ctl_est_ua_all(lun, initidx, CTL_UA_MODE_CHANGE); 1269 mtx_unlock(&lun->lun_lock); 1270} 1271 1272/* 1273 * ISC (Inter Shelf Communication) event handler. Events from the HA 1274 * subsystem come in here. 1275 */ 1276static void 1277ctl_isc_event_handler(ctl_ha_channel channel, ctl_ha_event event, int param) 1278{ 1279 struct ctl_softc *softc = control_softc; 1280 union ctl_io *io; 1281 struct ctl_prio *presio; 1282 ctl_ha_status isc_status; 1283 1284 CTL_DEBUG_PRINT(("CTL: Isc Msg event %d\n", event)); 1285 if (event == CTL_HA_EVT_MSG_RECV) { 1286 union ctl_ha_msg *msg, msgbuf; 1287 1288 if (param > sizeof(msgbuf)) 1289 msg = malloc(param, M_CTL, M_WAITOK); 1290 else 1291 msg = &msgbuf; 1292 isc_status = ctl_ha_msg_recv(CTL_HA_CHAN_CTL, msg, param, 1293 M_WAITOK); 1294 if (isc_status != CTL_HA_STATUS_SUCCESS) { 1295 printf("%s: Error receiving message: %d\n", 1296 __func__, isc_status); 1297 if (msg != &msgbuf) 1298 free(msg, M_CTL); 1299 return; 1300 } 1301 1302 CTL_DEBUG_PRINT(("CTL: msg_type %d\n", msg->msg_type)); 1303 switch (msg->hdr.msg_type) { 1304 case CTL_MSG_SERIALIZE: 1305 io = ctl_alloc_io(softc->othersc_pool); 1306 ctl_zero_io(io); 1307 // populate ctsio from msg 1308 io->io_hdr.io_type = CTL_IO_SCSI; 1309 io->io_hdr.msg_type = CTL_MSG_SERIALIZE; 1310 io->io_hdr.original_sc = msg->hdr.original_sc; 1311 io->io_hdr.flags |= CTL_FLAG_FROM_OTHER_SC | 1312 CTL_FLAG_IO_ACTIVE; 1313 /* 1314 * If we're in serialization-only mode, we don't 1315 * want to go through full done processing. Thus 1316 * the COPY flag. 1317 * 1318 * XXX KDM add another flag that is more specific. 1319 */ 1320 if (softc->ha_mode != CTL_HA_MODE_XFER) 1321 io->io_hdr.flags |= CTL_FLAG_INT_COPY; 1322 io->io_hdr.nexus = msg->hdr.nexus; 1323#if 0 1324 printf("port %u, iid %u, lun %u\n", 1325 io->io_hdr.nexus.targ_port, 1326 io->io_hdr.nexus.initid, 1327 io->io_hdr.nexus.targ_lun); 1328#endif 1329 io->scsiio.tag_num = msg->scsi.tag_num; 1330 io->scsiio.tag_type = msg->scsi.tag_type; 1331#ifdef CTL_TIME_IO 1332 io->io_hdr.start_time = time_uptime; 1333 getbinuptime(&io->io_hdr.start_bt); 1334#endif /* CTL_TIME_IO */ 1335 io->scsiio.cdb_len = msg->scsi.cdb_len; 1336 memcpy(io->scsiio.cdb, msg->scsi.cdb, 1337 CTL_MAX_CDBLEN); 1338 if (softc->ha_mode == CTL_HA_MODE_XFER) { 1339 const struct ctl_cmd_entry *entry; 1340 1341 entry = ctl_get_cmd_entry(&io->scsiio, NULL); 1342 io->io_hdr.flags &= ~CTL_FLAG_DATA_MASK; 1343 io->io_hdr.flags |= 1344 entry->flags & CTL_FLAG_DATA_MASK; 1345 } 1346 ctl_enqueue_isc(io); 1347 break; 1348 1349 /* Performed on the Originating SC, XFER mode only */ 1350 case CTL_MSG_DATAMOVE: { 1351 struct ctl_sg_entry *sgl; 1352 int i, j; 1353 1354 io = msg->hdr.original_sc; 1355 if (io == NULL) { 1356 printf("%s: original_sc == NULL!\n", __func__); 1357 /* XXX KDM do something here */ 1358 break; 1359 } 1360 io->io_hdr.msg_type = CTL_MSG_DATAMOVE; 1361 io->io_hdr.flags |= CTL_FLAG_IO_ACTIVE; 1362 /* 1363 * Keep track of this, we need to send it back over 1364 * when the datamove is complete. 1365 */ 1366 io->io_hdr.serializing_sc = msg->hdr.serializing_sc; 1367 if (msg->hdr.status == CTL_SUCCESS) 1368 io->io_hdr.status = msg->hdr.status; 1369 1370 if (msg->dt.sg_sequence == 0) { 1371#ifdef CTL_TIME_IO 1372 getbinuptime(&io->io_hdr.dma_start_bt); 1373#endif 1374 i = msg->dt.kern_sg_entries + 1375 msg->dt.kern_data_len / 1376 CTL_HA_DATAMOVE_SEGMENT + 1; 1377 sgl = malloc(sizeof(*sgl) * i, M_CTL, 1378 M_WAITOK | M_ZERO); 1379 io->io_hdr.remote_sglist = sgl; 1380 io->io_hdr.local_sglist = 1381 &sgl[msg->dt.kern_sg_entries]; 1382 1383 io->scsiio.kern_data_ptr = (uint8_t *)sgl; 1384 1385 io->scsiio.kern_sg_entries = 1386 msg->dt.kern_sg_entries; 1387 io->scsiio.rem_sg_entries = 1388 msg->dt.kern_sg_entries; 1389 io->scsiio.kern_data_len = 1390 msg->dt.kern_data_len; 1391 io->scsiio.kern_total_len = 1392 msg->dt.kern_total_len; 1393 io->scsiio.kern_data_resid = 1394 msg->dt.kern_data_resid; 1395 io->scsiio.kern_rel_offset = 1396 msg->dt.kern_rel_offset; 1397 io->io_hdr.flags &= ~CTL_FLAG_BUS_ADDR; 1398 io->io_hdr.flags |= msg->dt.flags & 1399 CTL_FLAG_BUS_ADDR; 1400 } else 1401 sgl = (struct ctl_sg_entry *) 1402 io->scsiio.kern_data_ptr; 1403 1404 for (i = msg->dt.sent_sg_entries, j = 0; 1405 i < (msg->dt.sent_sg_entries + 1406 msg->dt.cur_sg_entries); i++, j++) { 1407 sgl[i].addr = msg->dt.sg_list[j].addr; 1408 sgl[i].len = msg->dt.sg_list[j].len; 1409 1410#if 0 1411 printf("%s: DATAMOVE: %p,%lu j=%d, i=%d\n", 1412 __func__, sgl[i].addr, sgl[i].len, j, i); 1413#endif 1414 } 1415 1416 /* 1417 * If this is the last piece of the I/O, we've got 1418 * the full S/G list. Queue processing in the thread. 1419 * Otherwise wait for the next piece. 1420 */ 1421 if (msg->dt.sg_last != 0) 1422 ctl_enqueue_isc(io); 1423 break; 1424 } 1425 /* Performed on the Serializing (primary) SC, XFER mode only */ 1426 case CTL_MSG_DATAMOVE_DONE: { 1427 if (msg->hdr.serializing_sc == NULL) { 1428 printf("%s: serializing_sc == NULL!\n", 1429 __func__); 1430 /* XXX KDM now what? */ 1431 break; 1432 } 1433 /* 1434 * We grab the sense information here in case 1435 * there was a failure, so we can return status 1436 * back to the initiator. 1437 */ 1438 io = msg->hdr.serializing_sc; 1439 io->io_hdr.msg_type = CTL_MSG_DATAMOVE_DONE; 1440 io->io_hdr.flags &= ~CTL_FLAG_DMA_INPROG; 1441 io->io_hdr.flags |= CTL_FLAG_IO_ACTIVE; 1442 io->io_hdr.port_status = msg->scsi.fetd_status; 1443 io->scsiio.residual = msg->scsi.residual; 1444 if (msg->hdr.status != CTL_STATUS_NONE) { 1445 io->io_hdr.status = msg->hdr.status; 1446 io->scsiio.scsi_status = msg->scsi.scsi_status; 1447 io->scsiio.sense_len = msg->scsi.sense_len; 1448 io->scsiio.sense_residual =msg->scsi.sense_residual; 1449 memcpy(&io->scsiio.sense_data, 1450 &msg->scsi.sense_data, 1451 msg->scsi.sense_len); 1452 if (msg->hdr.status == CTL_SUCCESS) 1453 io->io_hdr.flags |= CTL_FLAG_STATUS_SENT; 1454 } 1455 ctl_enqueue_isc(io); 1456 break; 1457 } 1458 1459 /* Preformed on Originating SC, SER_ONLY mode */ 1460 case CTL_MSG_R2R: 1461 io = msg->hdr.original_sc; 1462 if (io == NULL) { 1463 printf("%s: original_sc == NULL!\n", 1464 __func__); 1465 break; 1466 } 1467 io->io_hdr.flags |= CTL_FLAG_IO_ACTIVE; 1468 io->io_hdr.msg_type = CTL_MSG_R2R; 1469 io->io_hdr.serializing_sc = msg->hdr.serializing_sc; 1470 ctl_enqueue_isc(io); 1471 break; 1472 1473 /* 1474 * Performed on Serializing(i.e. primary SC) SC in SER_ONLY 1475 * mode. 1476 * Performed on the Originating (i.e. secondary) SC in XFER 1477 * mode 1478 */ 1479 case CTL_MSG_FINISH_IO: 1480 if (softc->ha_mode == CTL_HA_MODE_XFER) 1481 ctl_isc_handler_finish_xfer(softc, msg); 1482 else 1483 ctl_isc_handler_finish_ser_only(softc, msg); 1484 break; 1485 1486 /* Preformed on Originating SC */ 1487 case CTL_MSG_BAD_JUJU: 1488 io = msg->hdr.original_sc; 1489 if (io == NULL) { 1490 printf("%s: Bad JUJU!, original_sc is NULL!\n", 1491 __func__); 1492 break; 1493 } 1494 ctl_copy_sense_data(msg, io); 1495 /* 1496 * IO should have already been cleaned up on other 1497 * SC so clear this flag so we won't send a message 1498 * back to finish the IO there. 1499 */ 1500 io->io_hdr.flags &= ~CTL_FLAG_SENT_2OTHER_SC; 1501 io->io_hdr.flags |= CTL_FLAG_IO_ACTIVE; 1502 1503 /* io = msg->hdr.serializing_sc; */ 1504 io->io_hdr.msg_type = CTL_MSG_BAD_JUJU; 1505 ctl_enqueue_isc(io); 1506 break; 1507 1508 /* Handle resets sent from the other side */ 1509 case CTL_MSG_MANAGE_TASKS: { 1510 struct ctl_taskio *taskio; 1511 taskio = (struct ctl_taskio *)ctl_alloc_io( 1512 softc->othersc_pool); 1513 ctl_zero_io((union ctl_io *)taskio); 1514 taskio->io_hdr.io_type = CTL_IO_TASK; 1515 taskio->io_hdr.flags |= CTL_FLAG_FROM_OTHER_SC; 1516 taskio->io_hdr.nexus = msg->hdr.nexus; 1517 taskio->task_action = msg->task.task_action; 1518 taskio->tag_num = msg->task.tag_num; 1519 taskio->tag_type = msg->task.tag_type; 1520#ifdef CTL_TIME_IO 1521 taskio->io_hdr.start_time = time_uptime; 1522 getbinuptime(&taskio->io_hdr.start_bt); 1523#endif /* CTL_TIME_IO */ 1524 ctl_run_task((union ctl_io *)taskio); 1525 break; 1526 } 1527 /* Persistent Reserve action which needs attention */ 1528 case CTL_MSG_PERS_ACTION: 1529 presio = (struct ctl_prio *)ctl_alloc_io( 1530 softc->othersc_pool); 1531 ctl_zero_io((union ctl_io *)presio); 1532 presio->io_hdr.msg_type = CTL_MSG_PERS_ACTION; 1533 presio->io_hdr.flags |= CTL_FLAG_FROM_OTHER_SC; 1534 presio->io_hdr.nexus = msg->hdr.nexus; 1535 presio->pr_msg = msg->pr; 1536 ctl_enqueue_isc((union ctl_io *)presio); 1537 break; 1538 case CTL_MSG_UA: 1539 ctl_isc_ua(softc, msg, param); 1540 break; 1541 case CTL_MSG_PORT_SYNC: 1542 ctl_isc_port_sync(softc, msg, param); 1543 break; 1544 case CTL_MSG_LUN_SYNC: 1545 ctl_isc_lun_sync(softc, msg, param); 1546 break; 1547 case CTL_MSG_IID_SYNC: 1548 ctl_isc_iid_sync(softc, msg, param); 1549 break; 1550 case CTL_MSG_LOGIN: 1551 ctl_isc_login(softc, msg, param); 1552 break; 1553 case CTL_MSG_MODE_SYNC: 1554 ctl_isc_mode_sync(softc, msg, param); 1555 break; 1556 default: 1557 printf("Received HA message of unknown type %d\n", 1558 msg->hdr.msg_type); 1559 ctl_ha_msg_abort(CTL_HA_CHAN_CTL); 1560 break; 1561 } 1562 if (msg != &msgbuf) 1563 free(msg, M_CTL); 1564 } else if (event == CTL_HA_EVT_LINK_CHANGE) { 1565 printf("CTL: HA link status changed from %d to %d\n", 1566 softc->ha_link, param); 1567 if (param == softc->ha_link) 1568 return; 1569 if (softc->ha_link == CTL_HA_LINK_ONLINE) { 1570 softc->ha_link = param; 1571 ctl_isc_ha_link_down(softc); 1572 } else { 1573 softc->ha_link = param; 1574 if (softc->ha_link == CTL_HA_LINK_ONLINE) 1575 ctl_isc_ha_link_up(softc); 1576 } 1577 return; 1578 } else { 1579 printf("ctl_isc_event_handler: Unknown event %d\n", event); 1580 return; 1581 } 1582} 1583 1584static void 1585ctl_copy_sense_data(union ctl_ha_msg *src, union ctl_io *dest) 1586{ 1587 1588 memcpy(&dest->scsiio.sense_data, &src->scsi.sense_data, 1589 src->scsi.sense_len); 1590 dest->scsiio.scsi_status = src->scsi.scsi_status; 1591 dest->scsiio.sense_len = src->scsi.sense_len; 1592 dest->io_hdr.status = src->hdr.status; 1593} 1594 1595static void 1596ctl_copy_sense_data_back(union ctl_io *src, union ctl_ha_msg *dest) 1597{ 1598 1599 memcpy(&dest->scsi.sense_data, &src->scsiio.sense_data, 1600 src->scsiio.sense_len); 1601 dest->scsi.scsi_status = src->scsiio.scsi_status; 1602 dest->scsi.sense_len = src->scsiio.sense_len; 1603 dest->hdr.status = src->io_hdr.status; 1604} 1605 1606void 1607ctl_est_ua(struct ctl_lun *lun, uint32_t initidx, ctl_ua_type ua) 1608{ 1609 struct ctl_softc *softc = lun->ctl_softc; 1610 ctl_ua_type *pu; 1611 1612 if (initidx < softc->init_min || initidx >= softc->init_max) 1613 return; 1614 mtx_assert(&lun->lun_lock, MA_OWNED); 1615 pu = lun->pending_ua[initidx / CTL_MAX_INIT_PER_PORT]; 1616 if (pu == NULL) 1617 return; 1618 pu[initidx % CTL_MAX_INIT_PER_PORT] |= ua; 1619} 1620 1621void 1622ctl_est_ua_port(struct ctl_lun *lun, int port, uint32_t except, ctl_ua_type ua) 1623{ 1624 int i; 1625 1626 mtx_assert(&lun->lun_lock, MA_OWNED); 1627 if (lun->pending_ua[port] == NULL) 1628 return; 1629 for (i = 0; i < CTL_MAX_INIT_PER_PORT; i++) { 1630 if (port * CTL_MAX_INIT_PER_PORT + i == except) 1631 continue; 1632 lun->pending_ua[port][i] |= ua; 1633 } 1634} 1635 1636void 1637ctl_est_ua_all(struct ctl_lun *lun, uint32_t except, ctl_ua_type ua) 1638{ 1639 struct ctl_softc *softc = lun->ctl_softc; 1640 int i; 1641 1642 mtx_assert(&lun->lun_lock, MA_OWNED); 1643 for (i = softc->port_min; i < softc->port_max; i++) 1644 ctl_est_ua_port(lun, i, except, ua); 1645} 1646 1647void 1648ctl_clr_ua(struct ctl_lun *lun, uint32_t initidx, ctl_ua_type ua) 1649{ 1650 struct ctl_softc *softc = lun->ctl_softc; 1651 ctl_ua_type *pu; 1652 1653 if (initidx < softc->init_min || initidx >= softc->init_max) 1654 return; 1655 mtx_assert(&lun->lun_lock, MA_OWNED); 1656 pu = lun->pending_ua[initidx / CTL_MAX_INIT_PER_PORT]; 1657 if (pu == NULL) 1658 return; 1659 pu[initidx % CTL_MAX_INIT_PER_PORT] &= ~ua; 1660} 1661 1662void 1663ctl_clr_ua_all(struct ctl_lun *lun, uint32_t except, ctl_ua_type ua) 1664{ 1665 struct ctl_softc *softc = lun->ctl_softc; 1666 int i, j; 1667 1668 mtx_assert(&lun->lun_lock, MA_OWNED); 1669 for (i = softc->port_min; i < softc->port_max; i++) { 1670 if (lun->pending_ua[i] == NULL) 1671 continue; 1672 for (j = 0; j < CTL_MAX_INIT_PER_PORT; j++) { 1673 if (i * CTL_MAX_INIT_PER_PORT + j == except) 1674 continue; 1675 lun->pending_ua[i][j] &= ~ua; 1676 } 1677 } 1678} 1679 1680void 1681ctl_clr_ua_allluns(struct ctl_softc *ctl_softc, uint32_t initidx, 1682 ctl_ua_type ua_type) 1683{ 1684 struct ctl_lun *lun; 1685 1686 mtx_assert(&ctl_softc->ctl_lock, MA_OWNED); 1687 STAILQ_FOREACH(lun, &ctl_softc->lun_list, links) { 1688 mtx_lock(&lun->lun_lock); 1689 ctl_clr_ua(lun, initidx, ua_type); 1690 mtx_unlock(&lun->lun_lock); 1691 } 1692} 1693 1694static int 1695ctl_ha_role_sysctl(SYSCTL_HANDLER_ARGS) 1696{ 1697 struct ctl_softc *softc = (struct ctl_softc *)arg1; 1698 struct ctl_lun *lun; 1699 struct ctl_lun_req ireq; 1700 int error, value; 1701 1702 value = (softc->flags & CTL_FLAG_ACTIVE_SHELF) ? 0 : 1; 1703 error = sysctl_handle_int(oidp, &value, 0, req); 1704 if ((error != 0) || (req->newptr == NULL)) 1705 return (error); 1706 1707 mtx_lock(&softc->ctl_lock); 1708 if (value == 0) 1709 softc->flags |= CTL_FLAG_ACTIVE_SHELF; 1710 else 1711 softc->flags &= ~CTL_FLAG_ACTIVE_SHELF; 1712 STAILQ_FOREACH(lun, &softc->lun_list, links) { 1713 mtx_unlock(&softc->ctl_lock); 1714 bzero(&ireq, sizeof(ireq)); 1715 ireq.reqtype = CTL_LUNREQ_MODIFY; 1716 ireq.reqdata.modify.lun_id = lun->lun; 1717 lun->backend->ioctl(NULL, CTL_LUN_REQ, (caddr_t)&ireq, 0, 1718 curthread); 1719 if (ireq.status != CTL_LUN_OK) { 1720 printf("%s: CTL_LUNREQ_MODIFY returned %d '%s'\n", 1721 __func__, ireq.status, ireq.error_str); 1722 } 1723 mtx_lock(&softc->ctl_lock); 1724 } 1725 mtx_unlock(&softc->ctl_lock); 1726 return (0); 1727} 1728 1729static int 1730ctl_init(void) 1731{ 1732 struct ctl_softc *softc; 1733 void *other_pool; 1734 int i, error; 1735 1736 softc = control_softc = malloc(sizeof(*control_softc), M_DEVBUF, 1737 M_WAITOK | M_ZERO); 1738 1739 softc->dev = make_dev(&ctl_cdevsw, 0, UID_ROOT, GID_OPERATOR, 0600, 1740 "cam/ctl"); 1741 softc->dev->si_drv1 = softc; 1742 1743 sysctl_ctx_init(&softc->sysctl_ctx); 1744 softc->sysctl_tree = SYSCTL_ADD_NODE(&softc->sysctl_ctx, 1745 SYSCTL_STATIC_CHILDREN(_kern_cam), OID_AUTO, "ctl", 1746 CTLFLAG_RD, 0, "CAM Target Layer"); 1747 1748 if (softc->sysctl_tree == NULL) { 1749 printf("%s: unable to allocate sysctl tree\n", __func__); 1750 destroy_dev(softc->dev); 1751 free(control_softc, M_DEVBUF); 1752 control_softc = NULL; 1753 return (ENOMEM); 1754 } 1755 1756 mtx_init(&softc->ctl_lock, "CTL mutex", NULL, MTX_DEF); 1757 softc->io_zone = uma_zcreate("CTL IO", sizeof(union ctl_io), 1758 NULL, NULL, NULL, NULL, UMA_ALIGN_PTR, 0); 1759 softc->flags = 0; 1760 1761 SYSCTL_ADD_INT(&softc->sysctl_ctx, SYSCTL_CHILDREN(softc->sysctl_tree), 1762 OID_AUTO, "ha_mode", CTLFLAG_RDTUN, (int *)&softc->ha_mode, 0, 1763 "HA mode (0 - act/stby, 1 - serialize only, 2 - xfer)"); 1764 1765 /* 1766 * In Copan's HA scheme, the "master" and "slave" roles are 1767 * figured out through the slot the controller is in. Although it 1768 * is an active/active system, someone has to be in charge. 1769 */ 1770 SYSCTL_ADD_INT(&softc->sysctl_ctx, SYSCTL_CHILDREN(softc->sysctl_tree), 1771 OID_AUTO, "ha_id", CTLFLAG_RDTUN, &softc->ha_id, 0, 1772 "HA head ID (0 - no HA)"); 1773 if (softc->ha_id == 0 || softc->ha_id > NUM_TARGET_PORT_GROUPS) { 1774 softc->flags |= CTL_FLAG_ACTIVE_SHELF; 1775 softc->is_single = 1; 1776 softc->port_cnt = CTL_MAX_PORTS; 1777 softc->port_min = 0; 1778 } else { 1779 softc->port_cnt = CTL_MAX_PORTS / NUM_TARGET_PORT_GROUPS; 1780 softc->port_min = (softc->ha_id - 1) * softc->port_cnt; 1781 } 1782 softc->port_max = softc->port_min + softc->port_cnt; 1783 softc->init_min = softc->port_min * CTL_MAX_INIT_PER_PORT; 1784 softc->init_max = softc->port_max * CTL_MAX_INIT_PER_PORT; 1785 1786 SYSCTL_ADD_INT(&softc->sysctl_ctx, SYSCTL_CHILDREN(softc->sysctl_tree), 1787 OID_AUTO, "ha_link", CTLFLAG_RD, (int *)&softc->ha_link, 0, 1788 "HA link state (0 - offline, 1 - unknown, 2 - online)"); 1789 1790 STAILQ_INIT(&softc->lun_list); 1791 STAILQ_INIT(&softc->pending_lun_queue); 1792 STAILQ_INIT(&softc->fe_list); 1793 STAILQ_INIT(&softc->port_list); 1794 STAILQ_INIT(&softc->be_list); 1795 ctl_tpc_init(softc); 1796 1797 if (ctl_pool_create(softc, "othersc", CTL_POOL_ENTRIES_OTHER_SC, 1798 &other_pool) != 0) 1799 { 1800 printf("ctl: can't allocate %d entry other SC pool, " 1801 "exiting\n", CTL_POOL_ENTRIES_OTHER_SC); 1802 return (ENOMEM); 1803 } 1804 softc->othersc_pool = other_pool; 1805 1806 if (worker_threads <= 0) 1807 worker_threads = max(1, mp_ncpus / 4); 1808 if (worker_threads > CTL_MAX_THREADS) 1809 worker_threads = CTL_MAX_THREADS; 1810 1811 for (i = 0; i < worker_threads; i++) { 1812 struct ctl_thread *thr = &softc->threads[i]; 1813 1814 mtx_init(&thr->queue_lock, "CTL queue mutex", NULL, MTX_DEF); 1815 thr->ctl_softc = softc; 1816 STAILQ_INIT(&thr->incoming_queue); 1817 STAILQ_INIT(&thr->rtr_queue); 1818 STAILQ_INIT(&thr->done_queue); 1819 STAILQ_INIT(&thr->isc_queue); 1820 1821 error = kproc_kthread_add(ctl_work_thread, thr, 1822 &softc->ctl_proc, &thr->thread, 0, 0, "ctl", "work%d", i); 1823 if (error != 0) { 1824 printf("error creating CTL work thread!\n"); 1825 ctl_pool_free(other_pool); 1826 return (error); 1827 } 1828 } 1829 error = kproc_kthread_add(ctl_lun_thread, softc, 1830 &softc->ctl_proc, NULL, 0, 0, "ctl", "lun"); 1831 if (error != 0) { 1832 printf("error creating CTL lun thread!\n"); 1833 ctl_pool_free(other_pool); 1834 return (error); 1835 } 1836 error = kproc_kthread_add(ctl_thresh_thread, softc, 1837 &softc->ctl_proc, NULL, 0, 0, "ctl", "thresh"); 1838 if (error != 0) { 1839 printf("error creating CTL threshold thread!\n"); 1840 ctl_pool_free(other_pool); 1841 return (error); 1842 } 1843 1844 SYSCTL_ADD_PROC(&softc->sysctl_ctx,SYSCTL_CHILDREN(softc->sysctl_tree), 1845 OID_AUTO, "ha_role", CTLTYPE_INT | CTLFLAG_RWTUN, 1846 softc, 0, ctl_ha_role_sysctl, "I", "HA role for this head"); 1847 1848 if (softc->is_single == 0) { 1849 ctl_frontend_register(&ha_frontend); 1850 if (ctl_ha_msg_init(softc) != CTL_HA_STATUS_SUCCESS) { 1851 printf("ctl_init: ctl_ha_msg_init failed.\n"); 1852 softc->is_single = 1; 1853 } else 1854 if (ctl_ha_msg_register(CTL_HA_CHAN_CTL, ctl_isc_event_handler) 1855 != CTL_HA_STATUS_SUCCESS) { 1856 printf("ctl_init: ctl_ha_msg_register failed.\n"); 1857 softc->is_single = 1; 1858 } 1859 } 1860 return (0); 1861} 1862 1863void 1864ctl_shutdown(void) 1865{ 1866 struct ctl_softc *softc = control_softc; 1867 struct ctl_lun *lun, *next_lun; 1868 1869 if (softc->is_single == 0) { 1870 ctl_ha_msg_shutdown(softc); 1871 if (ctl_ha_msg_deregister(CTL_HA_CHAN_CTL) 1872 != CTL_HA_STATUS_SUCCESS) 1873 printf("%s: ctl_ha_msg_deregister failed.\n", __func__); 1874 if (ctl_ha_msg_destroy(softc) != CTL_HA_STATUS_SUCCESS) 1875 printf("%s: ctl_ha_msg_destroy failed.\n", __func__); 1876 ctl_frontend_deregister(&ha_frontend); 1877 } 1878 1879 mtx_lock(&softc->ctl_lock); 1880 1881 /* 1882 * Free up each LUN. 1883 */ 1884 for (lun = STAILQ_FIRST(&softc->lun_list); lun != NULL; lun = next_lun){ 1885 next_lun = STAILQ_NEXT(lun, links); 1886 ctl_free_lun(lun); 1887 } 1888 1889 mtx_unlock(&softc->ctl_lock); 1890 1891#if 0 1892 ctl_shutdown_thread(softc->work_thread); 1893 mtx_destroy(&softc->queue_lock); 1894#endif 1895 1896 ctl_tpc_shutdown(softc); 1897 uma_zdestroy(softc->io_zone); 1898 mtx_destroy(&softc->ctl_lock); 1899 1900 destroy_dev(softc->dev); 1901 1902 sysctl_ctx_free(&softc->sysctl_ctx); 1903 1904 free(control_softc, M_DEVBUF); 1905 control_softc = NULL; 1906} 1907 1908static int 1909ctl_module_event_handler(module_t mod, int what, void *arg) 1910{ 1911 1912 switch (what) { 1913 case MOD_LOAD: 1914 return (ctl_init()); 1915 case MOD_UNLOAD: 1916 return (EBUSY); 1917 default: 1918 return (EOPNOTSUPP); 1919 } 1920} 1921 1922/* 1923 * XXX KDM should we do some access checks here? Bump a reference count to 1924 * prevent a CTL module from being unloaded while someone has it open? 1925 */ 1926static int 1927ctl_open(struct cdev *dev, int flags, int fmt, struct thread *td) 1928{ 1929 return (0); 1930} 1931 1932static int 1933ctl_close(struct cdev *dev, int flags, int fmt, struct thread *td) 1934{ 1935 return (0); 1936} 1937 1938/* 1939 * Remove an initiator by port number and initiator ID. 1940 * Returns 0 for success, -1 for failure. 1941 */ 1942int 1943ctl_remove_initiator(struct ctl_port *port, int iid) 1944{ 1945 struct ctl_softc *softc = port->ctl_softc; 1946 1947 mtx_assert(&softc->ctl_lock, MA_NOTOWNED); 1948 1949 if (iid > CTL_MAX_INIT_PER_PORT) { 1950 printf("%s: initiator ID %u > maximun %u!\n", 1951 __func__, iid, CTL_MAX_INIT_PER_PORT); 1952 return (-1); 1953 } 1954 1955 mtx_lock(&softc->ctl_lock); 1956 port->wwpn_iid[iid].in_use--; 1957 port->wwpn_iid[iid].last_use = time_uptime; 1958 mtx_unlock(&softc->ctl_lock); 1959 ctl_isc_announce_iid(port, iid); 1960 1961 return (0); 1962} 1963 1964/* 1965 * Add an initiator to the initiator map. 1966 * Returns iid for success, < 0 for failure. 1967 */ 1968int 1969ctl_add_initiator(struct ctl_port *port, int iid, uint64_t wwpn, char *name) 1970{ 1971 struct ctl_softc *softc = port->ctl_softc; 1972 time_t best_time; 1973 int i, best; 1974 1975 mtx_assert(&softc->ctl_lock, MA_NOTOWNED); 1976 1977 if (iid >= CTL_MAX_INIT_PER_PORT) { 1978 printf("%s: WWPN %#jx initiator ID %u > maximum %u!\n", 1979 __func__, wwpn, iid, CTL_MAX_INIT_PER_PORT); 1980 free(name, M_CTL); 1981 return (-1); 1982 } 1983 1984 mtx_lock(&softc->ctl_lock); 1985 1986 if (iid < 0 && (wwpn != 0 || name != NULL)) { 1987 for (i = 0; i < CTL_MAX_INIT_PER_PORT; i++) { 1988 if (wwpn != 0 && wwpn == port->wwpn_iid[i].wwpn) { 1989 iid = i; 1990 break; 1991 } 1992 if (name != NULL && port->wwpn_iid[i].name != NULL && 1993 strcmp(name, port->wwpn_iid[i].name) == 0) { 1994 iid = i; 1995 break; 1996 } 1997 } 1998 } 1999 2000 if (iid < 0) { 2001 for (i = 0; i < CTL_MAX_INIT_PER_PORT; i++) { 2002 if (port->wwpn_iid[i].in_use == 0 && 2003 port->wwpn_iid[i].wwpn == 0 && 2004 port->wwpn_iid[i].name == NULL) { 2005 iid = i; 2006 break; 2007 } 2008 } 2009 } 2010 2011 if (iid < 0) { 2012 best = -1; 2013 best_time = INT32_MAX; 2014 for (i = 0; i < CTL_MAX_INIT_PER_PORT; i++) { 2015 if (port->wwpn_iid[i].in_use == 0) { 2016 if (port->wwpn_iid[i].last_use < best_time) { 2017 best = i; 2018 best_time = port->wwpn_iid[i].last_use; 2019 } 2020 } 2021 } 2022 iid = best; 2023 } 2024 2025 if (iid < 0) { 2026 mtx_unlock(&softc->ctl_lock); 2027 free(name, M_CTL); 2028 return (-2); 2029 } 2030 2031 if (port->wwpn_iid[iid].in_use > 0 && (wwpn != 0 || name != NULL)) { 2032 /* 2033 * This is not an error yet. 2034 */ 2035 if (wwpn != 0 && wwpn == port->wwpn_iid[iid].wwpn) { 2036#if 0 2037 printf("%s: port %d iid %u WWPN %#jx arrived" 2038 " again\n", __func__, port->targ_port, 2039 iid, (uintmax_t)wwpn); 2040#endif 2041 goto take; 2042 } 2043 if (name != NULL && port->wwpn_iid[iid].name != NULL && 2044 strcmp(name, port->wwpn_iid[iid].name) == 0) { 2045#if 0 2046 printf("%s: port %d iid %u name '%s' arrived" 2047 " again\n", __func__, port->targ_port, 2048 iid, name); 2049#endif 2050 goto take; 2051 } 2052 2053 /* 2054 * This is an error, but what do we do about it? The 2055 * driver is telling us we have a new WWPN for this 2056 * initiator ID, so we pretty much need to use it. 2057 */ 2058 printf("%s: port %d iid %u WWPN %#jx '%s' arrived," 2059 " but WWPN %#jx '%s' is still at that address\n", 2060 __func__, port->targ_port, iid, wwpn, name, 2061 (uintmax_t)port->wwpn_iid[iid].wwpn, 2062 port->wwpn_iid[iid].name); 2063 2064 /* 2065 * XXX KDM clear have_ca and ua_pending on each LUN for 2066 * this initiator. 2067 */ 2068 } 2069take: 2070 free(port->wwpn_iid[iid].name, M_CTL); 2071 port->wwpn_iid[iid].name = name; 2072 port->wwpn_iid[iid].wwpn = wwpn; 2073 port->wwpn_iid[iid].in_use++; 2074 mtx_unlock(&softc->ctl_lock); 2075 ctl_isc_announce_iid(port, iid); 2076 2077 return (iid); 2078} 2079 2080static int 2081ctl_create_iid(struct ctl_port *port, int iid, uint8_t *buf) 2082{ 2083 int len; 2084 2085 switch (port->port_type) { 2086 case CTL_PORT_FC: 2087 { 2088 struct scsi_transportid_fcp *id = 2089 (struct scsi_transportid_fcp *)buf; 2090 if (port->wwpn_iid[iid].wwpn == 0) 2091 return (0); 2092 memset(id, 0, sizeof(*id)); 2093 id->format_protocol = SCSI_PROTO_FC; 2094 scsi_u64to8b(port->wwpn_iid[iid].wwpn, id->n_port_name); 2095 return (sizeof(*id)); 2096 } 2097 case CTL_PORT_ISCSI: 2098 { 2099 struct scsi_transportid_iscsi_port *id = 2100 (struct scsi_transportid_iscsi_port *)buf; 2101 if (port->wwpn_iid[iid].name == NULL) 2102 return (0); 2103 memset(id, 0, 256); 2104 id->format_protocol = SCSI_TRN_ISCSI_FORMAT_PORT | 2105 SCSI_PROTO_ISCSI; 2106 len = strlcpy(id->iscsi_name, port->wwpn_iid[iid].name, 252) + 1; 2107 len = roundup2(min(len, 252), 4); 2108 scsi_ulto2b(len, id->additional_length); 2109 return (sizeof(*id) + len); 2110 } 2111 case CTL_PORT_SAS: 2112 { 2113 struct scsi_transportid_sas *id = 2114 (struct scsi_transportid_sas *)buf; 2115 if (port->wwpn_iid[iid].wwpn == 0) 2116 return (0); 2117 memset(id, 0, sizeof(*id)); 2118 id->format_protocol = SCSI_PROTO_SAS; 2119 scsi_u64to8b(port->wwpn_iid[iid].wwpn, id->sas_address); 2120 return (sizeof(*id)); 2121 } 2122 default: 2123 { 2124 struct scsi_transportid_spi *id = 2125 (struct scsi_transportid_spi *)buf; 2126 memset(id, 0, sizeof(*id)); 2127 id->format_protocol = SCSI_PROTO_SPI; 2128 scsi_ulto2b(iid, id->scsi_addr); 2129 scsi_ulto2b(port->targ_port, id->rel_trgt_port_id); 2130 return (sizeof(*id)); 2131 } 2132 } 2133} 2134 2135/* 2136 * Serialize a command that went down the "wrong" side, and so was sent to 2137 * this controller for execution. The logic is a little different than the 2138 * standard case in ctl_scsiio_precheck(). Errors in this case need to get 2139 * sent back to the other side, but in the success case, we execute the 2140 * command on this side (XFER mode) or tell the other side to execute it 2141 * (SER_ONLY mode). 2142 */ 2143static int 2144ctl_serialize_other_sc_cmd(struct ctl_scsiio *ctsio) 2145{ 2146 struct ctl_softc *softc = control_softc; 2147 union ctl_ha_msg msg_info; 2148 struct ctl_port *port; 2149 struct ctl_lun *lun; 2150 const struct ctl_cmd_entry *entry; 2151 int retval = 0; 2152 uint32_t targ_lun; 2153 2154 targ_lun = ctsio->io_hdr.nexus.targ_mapped_lun; 2155 mtx_lock(&softc->ctl_lock); 2156 2157 /* Make sure that we know about this port. */ 2158 port = ctl_io_port(&ctsio->io_hdr); 2159 if (port == NULL || (port->status & CTL_PORT_STATUS_ONLINE) == 0) { 2160 ctl_set_internal_failure(ctsio, /*sks_valid*/ 0, 2161 /*retry_count*/ 1); 2162 goto badjuju; 2163 } 2164 2165 /* Make sure that we know about this LUN. */ 2166 if ((targ_lun < CTL_MAX_LUNS) && 2167 ((lun = softc->ctl_luns[targ_lun]) != NULL)) { 2168 mtx_lock(&lun->lun_lock); 2169 mtx_unlock(&softc->ctl_lock); 2170 /* 2171 * If the LUN is invalid, pretend that it doesn't exist. 2172 * It will go away as soon as all pending I/O has been 2173 * completed. 2174 */ 2175 if (lun->flags & CTL_LUN_DISABLED) { 2176 mtx_unlock(&lun->lun_lock); 2177 lun = NULL; 2178 } 2179 } else { 2180 mtx_unlock(&softc->ctl_lock); 2181 lun = NULL; 2182 } 2183 if (lun == NULL) { 2184 /* 2185 * The other node would not send this request to us unless 2186 * received announce that we are primary node for this LUN. 2187 * If this LUN does not exist now, it is probably result of 2188 * a race, so respond to initiator in the most opaque way. 2189 */ 2190 ctl_set_busy(ctsio); 2191 goto badjuju; 2192 } 2193 2194 entry = ctl_get_cmd_entry(ctsio, NULL); 2195 if (ctl_scsiio_lun_check(lun, entry, ctsio) != 0) { 2196 mtx_unlock(&lun->lun_lock); 2197 goto badjuju; 2198 } 2199 2200 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr = lun; 2201 ctsio->io_hdr.ctl_private[CTL_PRIV_BACKEND_LUN].ptr = lun->be_lun; 2202 2203 /* 2204 * Every I/O goes into the OOA queue for a 2205 * particular LUN, and stays there until completion. 2206 */ 2207#ifdef CTL_TIME_IO 2208 if (TAILQ_EMPTY(&lun->ooa_queue)) 2209 lun->idle_time += getsbinuptime() - lun->last_busy; 2210#endif 2211 TAILQ_INSERT_TAIL(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 2212 2213 switch (ctl_check_ooa(lun, (union ctl_io *)ctsio, 2214 (union ctl_io *)TAILQ_PREV(&ctsio->io_hdr, ctl_ooaq, 2215 ooa_links))) { 2216 case CTL_ACTION_BLOCK: 2217 ctsio->io_hdr.flags |= CTL_FLAG_BLOCKED; 2218 TAILQ_INSERT_TAIL(&lun->blocked_queue, &ctsio->io_hdr, 2219 blocked_links); 2220 mtx_unlock(&lun->lun_lock); 2221 break; 2222 case CTL_ACTION_PASS: 2223 case CTL_ACTION_SKIP: 2224 if (softc->ha_mode == CTL_HA_MODE_XFER) { 2225 ctsio->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 2226 ctl_enqueue_rtr((union ctl_io *)ctsio); 2227 mtx_unlock(&lun->lun_lock); 2228 } else { 2229 ctsio->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 2230 mtx_unlock(&lun->lun_lock); 2231 2232 /* send msg back to other side */ 2233 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 2234 msg_info.hdr.serializing_sc = (union ctl_io *)ctsio; 2235 msg_info.hdr.msg_type = CTL_MSG_R2R; 2236 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 2237 sizeof(msg_info.hdr), M_WAITOK); 2238 } 2239 break; 2240 case CTL_ACTION_OVERLAP: 2241 TAILQ_REMOVE(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 2242 mtx_unlock(&lun->lun_lock); 2243 ctl_set_overlapped_cmd(ctsio); 2244 goto badjuju; 2245 case CTL_ACTION_OVERLAP_TAG: 2246 TAILQ_REMOVE(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 2247 mtx_unlock(&lun->lun_lock); 2248 ctl_set_overlapped_tag(ctsio, ctsio->tag_num); 2249 goto badjuju; 2250 case CTL_ACTION_ERROR: 2251 default: 2252 TAILQ_REMOVE(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 2253 mtx_unlock(&lun->lun_lock); 2254 2255 ctl_set_internal_failure(ctsio, /*sks_valid*/ 0, 2256 /*retry_count*/ 0); 2257badjuju: 2258 ctl_copy_sense_data_back((union ctl_io *)ctsio, &msg_info); 2259 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 2260 msg_info.hdr.serializing_sc = NULL; 2261 msg_info.hdr.msg_type = CTL_MSG_BAD_JUJU; 2262 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 2263 sizeof(msg_info.scsi), M_WAITOK); 2264 retval = 1; 2265 break; 2266 } 2267 return (retval); 2268} 2269 2270/* 2271 * Returns 0 for success, errno for failure. 2272 */ 2273static void 2274ctl_ioctl_fill_ooa(struct ctl_lun *lun, uint32_t *cur_fill_num, 2275 struct ctl_ooa *ooa_hdr, struct ctl_ooa_entry *kern_entries) 2276{ 2277 union ctl_io *io; 2278 2279 mtx_lock(&lun->lun_lock); 2280 for (io = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); (io != NULL); 2281 (*cur_fill_num)++, io = (union ctl_io *)TAILQ_NEXT(&io->io_hdr, 2282 ooa_links)) { 2283 struct ctl_ooa_entry *entry; 2284 2285 /* 2286 * If we've got more than we can fit, just count the 2287 * remaining entries. 2288 */ 2289 if (*cur_fill_num >= ooa_hdr->alloc_num) 2290 continue; 2291 2292 entry = &kern_entries[*cur_fill_num]; 2293 2294 entry->tag_num = io->scsiio.tag_num; 2295 entry->lun_num = lun->lun; 2296#ifdef CTL_TIME_IO 2297 entry->start_bt = io->io_hdr.start_bt; 2298#endif 2299 bcopy(io->scsiio.cdb, entry->cdb, io->scsiio.cdb_len); 2300 entry->cdb_len = io->scsiio.cdb_len; 2301 if (io->io_hdr.flags & CTL_FLAG_BLOCKED) 2302 entry->cmd_flags |= CTL_OOACMD_FLAG_BLOCKED; 2303 2304 if (io->io_hdr.flags & CTL_FLAG_DMA_INPROG) 2305 entry->cmd_flags |= CTL_OOACMD_FLAG_DMA; 2306 2307 if (io->io_hdr.flags & CTL_FLAG_ABORT) 2308 entry->cmd_flags |= CTL_OOACMD_FLAG_ABORT; 2309 2310 if (io->io_hdr.flags & CTL_FLAG_IS_WAS_ON_RTR) 2311 entry->cmd_flags |= CTL_OOACMD_FLAG_RTR; 2312 2313 if (io->io_hdr.flags & CTL_FLAG_DMA_QUEUED) 2314 entry->cmd_flags |= CTL_OOACMD_FLAG_DMA_QUEUED; 2315 } 2316 mtx_unlock(&lun->lun_lock); 2317} 2318 2319static void * 2320ctl_copyin_alloc(void *user_addr, int len, char *error_str, 2321 size_t error_str_len) 2322{ 2323 void *kptr; 2324 2325 kptr = malloc(len, M_CTL, M_WAITOK | M_ZERO); 2326 2327 if (copyin(user_addr, kptr, len) != 0) { 2328 snprintf(error_str, error_str_len, "Error copying %d bytes " 2329 "from user address %p to kernel address %p", len, 2330 user_addr, kptr); 2331 free(kptr, M_CTL); 2332 return (NULL); 2333 } 2334 2335 return (kptr); 2336} 2337 2338static void 2339ctl_free_args(int num_args, struct ctl_be_arg *args) 2340{ 2341 int i; 2342 2343 if (args == NULL) 2344 return; 2345 2346 for (i = 0; i < num_args; i++) { 2347 free(args[i].kname, M_CTL); 2348 free(args[i].kvalue, M_CTL); 2349 } 2350 2351 free(args, M_CTL); 2352} 2353 2354static struct ctl_be_arg * 2355ctl_copyin_args(int num_args, struct ctl_be_arg *uargs, 2356 char *error_str, size_t error_str_len) 2357{ 2358 struct ctl_be_arg *args; 2359 int i; 2360 2361 args = ctl_copyin_alloc(uargs, num_args * sizeof(*args), 2362 error_str, error_str_len); 2363 2364 if (args == NULL) 2365 goto bailout; 2366 2367 for (i = 0; i < num_args; i++) { 2368 args[i].kname = NULL; 2369 args[i].kvalue = NULL; 2370 } 2371 2372 for (i = 0; i < num_args; i++) { 2373 uint8_t *tmpptr; 2374 2375 args[i].kname = ctl_copyin_alloc(args[i].name, 2376 args[i].namelen, error_str, error_str_len); 2377 if (args[i].kname == NULL) 2378 goto bailout; 2379 2380 if (args[i].kname[args[i].namelen - 1] != '\0') { 2381 snprintf(error_str, error_str_len, "Argument %d " 2382 "name is not NUL-terminated", i); 2383 goto bailout; 2384 } 2385 2386 if (args[i].flags & CTL_BEARG_RD) { 2387 tmpptr = ctl_copyin_alloc(args[i].value, 2388 args[i].vallen, error_str, error_str_len); 2389 if (tmpptr == NULL) 2390 goto bailout; 2391 if ((args[i].flags & CTL_BEARG_ASCII) 2392 && (tmpptr[args[i].vallen - 1] != '\0')) { 2393 snprintf(error_str, error_str_len, "Argument " 2394 "%d value is not NUL-terminated", i); 2395 goto bailout; 2396 } 2397 args[i].kvalue = tmpptr; 2398 } else { 2399 args[i].kvalue = malloc(args[i].vallen, 2400 M_CTL, M_WAITOK | M_ZERO); 2401 } 2402 } 2403 2404 return (args); 2405bailout: 2406 2407 ctl_free_args(num_args, args); 2408 2409 return (NULL); 2410} 2411 2412static void 2413ctl_copyout_args(int num_args, struct ctl_be_arg *args) 2414{ 2415 int i; 2416 2417 for (i = 0; i < num_args; i++) { 2418 if (args[i].flags & CTL_BEARG_WR) 2419 copyout(args[i].kvalue, args[i].value, args[i].vallen); 2420 } 2421} 2422 2423/* 2424 * Escape characters that are illegal or not recommended in XML. 2425 */ 2426int 2427ctl_sbuf_printf_esc(struct sbuf *sb, char *str, int size) 2428{ 2429 char *end = str + size; 2430 int retval; 2431 2432 retval = 0; 2433 2434 for (; *str && str < end; str++) { 2435 switch (*str) { 2436 case '&': 2437 retval = sbuf_printf(sb, "&"); 2438 break; 2439 case '>': 2440 retval = sbuf_printf(sb, ">"); 2441 break; 2442 case '<': 2443 retval = sbuf_printf(sb, "<"); 2444 break; 2445 default: 2446 retval = sbuf_putc(sb, *str); 2447 break; 2448 } 2449 2450 if (retval != 0) 2451 break; 2452 2453 } 2454 2455 return (retval); 2456} 2457 2458static void 2459ctl_id_sbuf(struct ctl_devid *id, struct sbuf *sb) 2460{ 2461 struct scsi_vpd_id_descriptor *desc; 2462 int i; 2463 2464 if (id == NULL || id->len < 4) 2465 return; 2466 desc = (struct scsi_vpd_id_descriptor *)id->data; 2467 switch (desc->id_type & SVPD_ID_TYPE_MASK) { 2468 case SVPD_ID_TYPE_T10: 2469 sbuf_printf(sb, "t10."); 2470 break; 2471 case SVPD_ID_TYPE_EUI64: 2472 sbuf_printf(sb, "eui."); 2473 break; 2474 case SVPD_ID_TYPE_NAA: 2475 sbuf_printf(sb, "naa."); 2476 break; 2477 case SVPD_ID_TYPE_SCSI_NAME: 2478 break; 2479 } 2480 switch (desc->proto_codeset & SVPD_ID_CODESET_MASK) { 2481 case SVPD_ID_CODESET_BINARY: 2482 for (i = 0; i < desc->length; i++) 2483 sbuf_printf(sb, "%02x", desc->identifier[i]); 2484 break; 2485 case SVPD_ID_CODESET_ASCII: 2486 sbuf_printf(sb, "%.*s", (int)desc->length, 2487 (char *)desc->identifier); 2488 break; 2489 case SVPD_ID_CODESET_UTF8: 2490 sbuf_printf(sb, "%s", (char *)desc->identifier); 2491 break; 2492 } 2493} 2494 2495static int 2496ctl_ioctl(struct cdev *dev, u_long cmd, caddr_t addr, int flag, 2497 struct thread *td) 2498{ 2499 struct ctl_softc *softc = dev->si_drv1; 2500 struct ctl_lun *lun; 2501 int retval; 2502 2503 retval = 0; 2504 2505 switch (cmd) { 2506 case CTL_IO: 2507 retval = ctl_ioctl_io(dev, cmd, addr, flag, td); 2508 break; 2509 case CTL_ENABLE_PORT: 2510 case CTL_DISABLE_PORT: 2511 case CTL_SET_PORT_WWNS: { 2512 struct ctl_port *port; 2513 struct ctl_port_entry *entry; 2514 2515 entry = (struct ctl_port_entry *)addr; 2516 2517 mtx_lock(&softc->ctl_lock); 2518 STAILQ_FOREACH(port, &softc->port_list, links) { 2519 int action, done; 2520 2521 if (port->targ_port < softc->port_min || 2522 port->targ_port >= softc->port_max) 2523 continue; 2524 2525 action = 0; 2526 done = 0; 2527 if ((entry->port_type == CTL_PORT_NONE) 2528 && (entry->targ_port == port->targ_port)) { 2529 /* 2530 * If the user only wants to enable or 2531 * disable or set WWNs on a specific port, 2532 * do the operation and we're done. 2533 */ 2534 action = 1; 2535 done = 1; 2536 } else if (entry->port_type & port->port_type) { 2537 /* 2538 * Compare the user's type mask with the 2539 * particular frontend type to see if we 2540 * have a match. 2541 */ 2542 action = 1; 2543 done = 0; 2544 2545 /* 2546 * Make sure the user isn't trying to set 2547 * WWNs on multiple ports at the same time. 2548 */ 2549 if (cmd == CTL_SET_PORT_WWNS) { 2550 printf("%s: Can't set WWNs on " 2551 "multiple ports\n", __func__); 2552 retval = EINVAL; 2553 break; 2554 } 2555 } 2556 if (action == 0) 2557 continue; 2558 2559 /* 2560 * XXX KDM we have to drop the lock here, because 2561 * the online/offline operations can potentially 2562 * block. We need to reference count the frontends 2563 * so they can't go away, 2564 */ 2565 if (cmd == CTL_ENABLE_PORT) { 2566 mtx_unlock(&softc->ctl_lock); 2567 ctl_port_online(port); 2568 mtx_lock(&softc->ctl_lock); 2569 } else if (cmd == CTL_DISABLE_PORT) { 2570 mtx_unlock(&softc->ctl_lock); 2571 ctl_port_offline(port); 2572 mtx_lock(&softc->ctl_lock); 2573 } else if (cmd == CTL_SET_PORT_WWNS) { 2574 ctl_port_set_wwns(port, 2575 (entry->flags & CTL_PORT_WWNN_VALID) ? 2576 1 : 0, entry->wwnn, 2577 (entry->flags & CTL_PORT_WWPN_VALID) ? 2578 1 : 0, entry->wwpn); 2579 } 2580 if (done != 0) 2581 break; 2582 } 2583 mtx_unlock(&softc->ctl_lock); 2584 break; 2585 } 2586 case CTL_GET_OOA: { 2587 struct ctl_ooa *ooa_hdr; 2588 struct ctl_ooa_entry *entries; 2589 uint32_t cur_fill_num; 2590 2591 ooa_hdr = (struct ctl_ooa *)addr; 2592 2593 if ((ooa_hdr->alloc_len == 0) 2594 || (ooa_hdr->alloc_num == 0)) { 2595 printf("%s: CTL_GET_OOA: alloc len %u and alloc num %u " 2596 "must be non-zero\n", __func__, 2597 ooa_hdr->alloc_len, ooa_hdr->alloc_num); 2598 retval = EINVAL; 2599 break; 2600 } 2601 2602 if (ooa_hdr->alloc_len != (ooa_hdr->alloc_num * 2603 sizeof(struct ctl_ooa_entry))) { 2604 printf("%s: CTL_GET_OOA: alloc len %u must be alloc " 2605 "num %d * sizeof(struct ctl_ooa_entry) %zd\n", 2606 __func__, ooa_hdr->alloc_len, 2607 ooa_hdr->alloc_num,sizeof(struct ctl_ooa_entry)); 2608 retval = EINVAL; 2609 break; 2610 } 2611 2612 entries = malloc(ooa_hdr->alloc_len, M_CTL, M_WAITOK | M_ZERO); 2613 if (entries == NULL) { 2614 printf("%s: could not allocate %d bytes for OOA " 2615 "dump\n", __func__, ooa_hdr->alloc_len); 2616 retval = ENOMEM; 2617 break; 2618 } 2619 2620 mtx_lock(&softc->ctl_lock); 2621 if (((ooa_hdr->flags & CTL_OOA_FLAG_ALL_LUNS) == 0) 2622 && ((ooa_hdr->lun_num >= CTL_MAX_LUNS) 2623 || (softc->ctl_luns[ooa_hdr->lun_num] == NULL))) { 2624 mtx_unlock(&softc->ctl_lock); 2625 free(entries, M_CTL); 2626 printf("%s: CTL_GET_OOA: invalid LUN %ju\n", 2627 __func__, (uintmax_t)ooa_hdr->lun_num); 2628 retval = EINVAL; 2629 break; 2630 } 2631 2632 cur_fill_num = 0; 2633 2634 if (ooa_hdr->flags & CTL_OOA_FLAG_ALL_LUNS) { 2635 STAILQ_FOREACH(lun, &softc->lun_list, links) { 2636 ctl_ioctl_fill_ooa(lun, &cur_fill_num, 2637 ooa_hdr, entries); 2638 } 2639 } else { 2640 lun = softc->ctl_luns[ooa_hdr->lun_num]; 2641 ctl_ioctl_fill_ooa(lun, &cur_fill_num, ooa_hdr, 2642 entries); 2643 } 2644 mtx_unlock(&softc->ctl_lock); 2645 2646 ooa_hdr->fill_num = min(cur_fill_num, ooa_hdr->alloc_num); 2647 ooa_hdr->fill_len = ooa_hdr->fill_num * 2648 sizeof(struct ctl_ooa_entry); 2649 retval = copyout(entries, ooa_hdr->entries, ooa_hdr->fill_len); 2650 if (retval != 0) { 2651 printf("%s: error copying out %d bytes for OOA dump\n", 2652 __func__, ooa_hdr->fill_len); 2653 } 2654 2655 getbinuptime(&ooa_hdr->cur_bt); 2656 2657 if (cur_fill_num > ooa_hdr->alloc_num) { 2658 ooa_hdr->dropped_num = cur_fill_num -ooa_hdr->alloc_num; 2659 ooa_hdr->status = CTL_OOA_NEED_MORE_SPACE; 2660 } else { 2661 ooa_hdr->dropped_num = 0; 2662 ooa_hdr->status = CTL_OOA_OK; 2663 } 2664 2665 free(entries, M_CTL); 2666 break; 2667 } 2668 case CTL_DELAY_IO: { 2669 struct ctl_io_delay_info *delay_info; 2670 2671 delay_info = (struct ctl_io_delay_info *)addr; 2672 2673#ifdef CTL_IO_DELAY 2674 mtx_lock(&softc->ctl_lock); 2675 2676 if ((delay_info->lun_id >= CTL_MAX_LUNS) 2677 || (softc->ctl_luns[delay_info->lun_id] == NULL)) { 2678 delay_info->status = CTL_DELAY_STATUS_INVALID_LUN; 2679 } else { 2680 lun = softc->ctl_luns[delay_info->lun_id]; 2681 mtx_lock(&lun->lun_lock); 2682 2683 delay_info->status = CTL_DELAY_STATUS_OK; 2684 2685 switch (delay_info->delay_type) { 2686 case CTL_DELAY_TYPE_CONT: 2687 break; 2688 case CTL_DELAY_TYPE_ONESHOT: 2689 break; 2690 default: 2691 delay_info->status = 2692 CTL_DELAY_STATUS_INVALID_TYPE; 2693 break; 2694 } 2695 2696 switch (delay_info->delay_loc) { 2697 case CTL_DELAY_LOC_DATAMOVE: 2698 lun->delay_info.datamove_type = 2699 delay_info->delay_type; 2700 lun->delay_info.datamove_delay = 2701 delay_info->delay_secs; 2702 break; 2703 case CTL_DELAY_LOC_DONE: 2704 lun->delay_info.done_type = 2705 delay_info->delay_type; 2706 lun->delay_info.done_delay = 2707 delay_info->delay_secs; 2708 break; 2709 default: 2710 delay_info->status = 2711 CTL_DELAY_STATUS_INVALID_LOC; 2712 break; 2713 } 2714 mtx_unlock(&lun->lun_lock); 2715 } 2716 2717 mtx_unlock(&softc->ctl_lock); 2718#else 2719 delay_info->status = CTL_DELAY_STATUS_NOT_IMPLEMENTED; 2720#endif /* CTL_IO_DELAY */ 2721 break; 2722 } 2723 case CTL_GETSTATS: { 2724 struct ctl_stats *stats; 2725 int i; 2726 2727 stats = (struct ctl_stats *)addr; 2728 2729 if ((sizeof(struct ctl_lun_io_stats) * softc->num_luns) > 2730 stats->alloc_len) { 2731 stats->status = CTL_SS_NEED_MORE_SPACE; 2732 stats->num_luns = softc->num_luns; 2733 break; 2734 } 2735 /* 2736 * XXX KDM no locking here. If the LUN list changes, 2737 * things can blow up. 2738 */ 2739 for (i = 0, lun = STAILQ_FIRST(&softc->lun_list); lun != NULL; 2740 i++, lun = STAILQ_NEXT(lun, links)) { 2741 retval = copyout(&lun->stats, &stats->lun_stats[i], 2742 sizeof(lun->stats)); 2743 if (retval != 0) 2744 break; 2745 } 2746 stats->num_luns = softc->num_luns; 2747 stats->fill_len = sizeof(struct ctl_lun_io_stats) * 2748 softc->num_luns; 2749 stats->status = CTL_SS_OK; 2750#ifdef CTL_TIME_IO 2751 stats->flags = CTL_STATS_FLAG_TIME_VALID; 2752#else 2753 stats->flags = CTL_STATS_FLAG_NONE; 2754#endif 2755 getnanouptime(&stats->timestamp); 2756 break; 2757 } 2758 case CTL_ERROR_INJECT: { 2759 struct ctl_error_desc *err_desc, *new_err_desc; 2760 2761 err_desc = (struct ctl_error_desc *)addr; 2762 2763 new_err_desc = malloc(sizeof(*new_err_desc), M_CTL, 2764 M_WAITOK | M_ZERO); 2765 bcopy(err_desc, new_err_desc, sizeof(*new_err_desc)); 2766 2767 mtx_lock(&softc->ctl_lock); 2768 lun = softc->ctl_luns[err_desc->lun_id]; 2769 if (lun == NULL) { 2770 mtx_unlock(&softc->ctl_lock); 2771 free(new_err_desc, M_CTL); 2772 printf("%s: CTL_ERROR_INJECT: invalid LUN %ju\n", 2773 __func__, (uintmax_t)err_desc->lun_id); 2774 retval = EINVAL; 2775 break; 2776 } 2777 mtx_lock(&lun->lun_lock); 2778 mtx_unlock(&softc->ctl_lock); 2779 2780 /* 2781 * We could do some checking here to verify the validity 2782 * of the request, but given the complexity of error 2783 * injection requests, the checking logic would be fairly 2784 * complex. 2785 * 2786 * For now, if the request is invalid, it just won't get 2787 * executed and might get deleted. 2788 */ 2789 STAILQ_INSERT_TAIL(&lun->error_list, new_err_desc, links); 2790 2791 /* 2792 * XXX KDM check to make sure the serial number is unique, 2793 * in case we somehow manage to wrap. That shouldn't 2794 * happen for a very long time, but it's the right thing to 2795 * do. 2796 */ 2797 new_err_desc->serial = lun->error_serial; 2798 err_desc->serial = lun->error_serial; 2799 lun->error_serial++; 2800 2801 mtx_unlock(&lun->lun_lock); 2802 break; 2803 } 2804 case CTL_ERROR_INJECT_DELETE: { 2805 struct ctl_error_desc *delete_desc, *desc, *desc2; 2806 int delete_done; 2807 2808 delete_desc = (struct ctl_error_desc *)addr; 2809 delete_done = 0; 2810 2811 mtx_lock(&softc->ctl_lock); 2812 lun = softc->ctl_luns[delete_desc->lun_id]; 2813 if (lun == NULL) { 2814 mtx_unlock(&softc->ctl_lock); 2815 printf("%s: CTL_ERROR_INJECT_DELETE: invalid LUN %ju\n", 2816 __func__, (uintmax_t)delete_desc->lun_id); 2817 retval = EINVAL; 2818 break; 2819 } 2820 mtx_lock(&lun->lun_lock); 2821 mtx_unlock(&softc->ctl_lock); 2822 STAILQ_FOREACH_SAFE(desc, &lun->error_list, links, desc2) { 2823 if (desc->serial != delete_desc->serial) 2824 continue; 2825 2826 STAILQ_REMOVE(&lun->error_list, desc, ctl_error_desc, 2827 links); 2828 free(desc, M_CTL); 2829 delete_done = 1; 2830 } 2831 mtx_unlock(&lun->lun_lock); 2832 if (delete_done == 0) { 2833 printf("%s: CTL_ERROR_INJECT_DELETE: can't find " 2834 "error serial %ju on LUN %u\n", __func__, 2835 delete_desc->serial, delete_desc->lun_id); 2836 retval = EINVAL; 2837 break; 2838 } 2839 break; 2840 } 2841 case CTL_DUMP_STRUCTS: { 2842 int i, j, k; 2843 struct ctl_port *port; 2844 struct ctl_frontend *fe; 2845 2846 mtx_lock(&softc->ctl_lock); 2847 printf("CTL Persistent Reservation information start:\n"); 2848 for (i = 0; i < CTL_MAX_LUNS; i++) { 2849 lun = softc->ctl_luns[i]; 2850 2851 if ((lun == NULL) 2852 || ((lun->flags & CTL_LUN_DISABLED) != 0)) 2853 continue; 2854 2855 for (j = 0; j < CTL_MAX_PORTS; j++) { 2856 if (lun->pr_keys[j] == NULL) 2857 continue; 2858 for (k = 0; k < CTL_MAX_INIT_PER_PORT; k++){ 2859 if (lun->pr_keys[j][k] == 0) 2860 continue; 2861 printf(" LUN %d port %d iid %d key " 2862 "%#jx\n", i, j, k, 2863 (uintmax_t)lun->pr_keys[j][k]); 2864 } 2865 } 2866 } 2867 printf("CTL Persistent Reservation information end\n"); 2868 printf("CTL Ports:\n"); 2869 STAILQ_FOREACH(port, &softc->port_list, links) { 2870 printf(" Port %d '%s' Frontend '%s' Type %u pp %d vp %d WWNN " 2871 "%#jx WWPN %#jx\n", port->targ_port, port->port_name, 2872 port->frontend->name, port->port_type, 2873 port->physical_port, port->virtual_port, 2874 (uintmax_t)port->wwnn, (uintmax_t)port->wwpn); 2875 for (j = 0; j < CTL_MAX_INIT_PER_PORT; j++) { 2876 if (port->wwpn_iid[j].in_use == 0 && 2877 port->wwpn_iid[j].wwpn == 0 && 2878 port->wwpn_iid[j].name == NULL) 2879 continue; 2880 2881 printf(" iid %u use %d WWPN %#jx '%s'\n", 2882 j, port->wwpn_iid[j].in_use, 2883 (uintmax_t)port->wwpn_iid[j].wwpn, 2884 port->wwpn_iid[j].name); 2885 } 2886 } 2887 printf("CTL Port information end\n"); 2888 mtx_unlock(&softc->ctl_lock); 2889 /* 2890 * XXX KDM calling this without a lock. We'd likely want 2891 * to drop the lock before calling the frontend's dump 2892 * routine anyway. 2893 */ 2894 printf("CTL Frontends:\n"); 2895 STAILQ_FOREACH(fe, &softc->fe_list, links) { 2896 printf(" Frontend '%s'\n", fe->name); 2897 if (fe->fe_dump != NULL) 2898 fe->fe_dump(); 2899 } 2900 printf("CTL Frontend information end\n"); 2901 break; 2902 } 2903 case CTL_LUN_REQ: { 2904 struct ctl_lun_req *lun_req; 2905 struct ctl_backend_driver *backend; 2906 2907 lun_req = (struct ctl_lun_req *)addr; 2908 2909 backend = ctl_backend_find(lun_req->backend); 2910 if (backend == NULL) { 2911 lun_req->status = CTL_LUN_ERROR; 2912 snprintf(lun_req->error_str, 2913 sizeof(lun_req->error_str), 2914 "Backend \"%s\" not found.", 2915 lun_req->backend); 2916 break; 2917 } 2918 if (lun_req->num_be_args > 0) { 2919 lun_req->kern_be_args = ctl_copyin_args( 2920 lun_req->num_be_args, 2921 lun_req->be_args, 2922 lun_req->error_str, 2923 sizeof(lun_req->error_str)); 2924 if (lun_req->kern_be_args == NULL) { 2925 lun_req->status = CTL_LUN_ERROR; 2926 break; 2927 } 2928 } 2929 2930 retval = backend->ioctl(dev, cmd, addr, flag, td); 2931 2932 if (lun_req->num_be_args > 0) { 2933 ctl_copyout_args(lun_req->num_be_args, 2934 lun_req->kern_be_args); 2935 ctl_free_args(lun_req->num_be_args, 2936 lun_req->kern_be_args); 2937 } 2938 break; 2939 } 2940 case CTL_LUN_LIST: { 2941 struct sbuf *sb; 2942 struct ctl_lun_list *list; 2943 struct ctl_option *opt; 2944 2945 list = (struct ctl_lun_list *)addr; 2946 2947 /* 2948 * Allocate a fixed length sbuf here, based on the length 2949 * of the user's buffer. We could allocate an auto-extending 2950 * buffer, and then tell the user how much larger our 2951 * amount of data is than his buffer, but that presents 2952 * some problems: 2953 * 2954 * 1. The sbuf(9) routines use a blocking malloc, and so 2955 * we can't hold a lock while calling them with an 2956 * auto-extending buffer. 2957 * 2958 * 2. There is not currently a LUN reference counting 2959 * mechanism, outside of outstanding transactions on 2960 * the LUN's OOA queue. So a LUN could go away on us 2961 * while we're getting the LUN number, backend-specific 2962 * information, etc. Thus, given the way things 2963 * currently work, we need to hold the CTL lock while 2964 * grabbing LUN information. 2965 * 2966 * So, from the user's standpoint, the best thing to do is 2967 * allocate what he thinks is a reasonable buffer length, 2968 * and then if he gets a CTL_LUN_LIST_NEED_MORE_SPACE error, 2969 * double the buffer length and try again. (And repeat 2970 * that until he succeeds.) 2971 */ 2972 sb = sbuf_new(NULL, NULL, list->alloc_len, SBUF_FIXEDLEN); 2973 if (sb == NULL) { 2974 list->status = CTL_LUN_LIST_ERROR; 2975 snprintf(list->error_str, sizeof(list->error_str), 2976 "Unable to allocate %d bytes for LUN list", 2977 list->alloc_len); 2978 break; 2979 } 2980 2981 sbuf_printf(sb, "<ctllunlist>\n"); 2982 2983 mtx_lock(&softc->ctl_lock); 2984 STAILQ_FOREACH(lun, &softc->lun_list, links) { 2985 mtx_lock(&lun->lun_lock); 2986 retval = sbuf_printf(sb, "<lun id=\"%ju\">\n", 2987 (uintmax_t)lun->lun); 2988 2989 /* 2990 * Bail out as soon as we see that we've overfilled 2991 * the buffer. 2992 */ 2993 if (retval != 0) 2994 break; 2995 2996 retval = sbuf_printf(sb, "\t<backend_type>%s" 2997 "</backend_type>\n", 2998 (lun->backend == NULL) ? "none" : 2999 lun->backend->name); 3000 3001 if (retval != 0) 3002 break; 3003 3004 retval = sbuf_printf(sb, "\t<lun_type>%d</lun_type>\n", 3005 lun->be_lun->lun_type); 3006 3007 if (retval != 0) 3008 break; 3009 3010 if (lun->backend == NULL) { 3011 retval = sbuf_printf(sb, "</lun>\n"); 3012 if (retval != 0) 3013 break; 3014 continue; 3015 } 3016 3017 retval = sbuf_printf(sb, "\t<size>%ju</size>\n", 3018 (lun->be_lun->maxlba > 0) ? 3019 lun->be_lun->maxlba + 1 : 0); 3020 3021 if (retval != 0) 3022 break; 3023 3024 retval = sbuf_printf(sb, "\t<blocksize>%u</blocksize>\n", 3025 lun->be_lun->blocksize); 3026 3027 if (retval != 0) 3028 break; 3029 3030 retval = sbuf_printf(sb, "\t<serial_number>"); 3031 3032 if (retval != 0) 3033 break; 3034 3035 retval = ctl_sbuf_printf_esc(sb, 3036 lun->be_lun->serial_num, 3037 sizeof(lun->be_lun->serial_num)); 3038 3039 if (retval != 0) 3040 break; 3041 3042 retval = sbuf_printf(sb, "</serial_number>\n"); 3043 3044 if (retval != 0) 3045 break; 3046 3047 retval = sbuf_printf(sb, "\t<device_id>"); 3048 3049 if (retval != 0) 3050 break; 3051 3052 retval = ctl_sbuf_printf_esc(sb, 3053 lun->be_lun->device_id, 3054 sizeof(lun->be_lun->device_id)); 3055 3056 if (retval != 0) 3057 break; 3058 3059 retval = sbuf_printf(sb, "</device_id>\n"); 3060 3061 if (retval != 0) 3062 break; 3063 3064 if (lun->backend->lun_info != NULL) { 3065 retval = lun->backend->lun_info(lun->be_lun->be_lun, sb); 3066 if (retval != 0) 3067 break; 3068 } 3069 STAILQ_FOREACH(opt, &lun->be_lun->options, links) { 3070 retval = sbuf_printf(sb, "\t<%s>%s</%s>\n", 3071 opt->name, opt->value, opt->name); 3072 if (retval != 0) 3073 break; 3074 } 3075 3076 retval = sbuf_printf(sb, "</lun>\n"); 3077 3078 if (retval != 0) 3079 break; 3080 mtx_unlock(&lun->lun_lock); 3081 } 3082 if (lun != NULL) 3083 mtx_unlock(&lun->lun_lock); 3084 mtx_unlock(&softc->ctl_lock); 3085 3086 if ((retval != 0) 3087 || ((retval = sbuf_printf(sb, "</ctllunlist>\n")) != 0)) { 3088 retval = 0; 3089 sbuf_delete(sb); 3090 list->status = CTL_LUN_LIST_NEED_MORE_SPACE; 3091 snprintf(list->error_str, sizeof(list->error_str), 3092 "Out of space, %d bytes is too small", 3093 list->alloc_len); 3094 break; 3095 } 3096 3097 sbuf_finish(sb); 3098 3099 retval = copyout(sbuf_data(sb), list->lun_xml, 3100 sbuf_len(sb) + 1); 3101 3102 list->fill_len = sbuf_len(sb) + 1; 3103 list->status = CTL_LUN_LIST_OK; 3104 sbuf_delete(sb); 3105 break; 3106 } 3107 case CTL_ISCSI: { 3108 struct ctl_iscsi *ci; 3109 struct ctl_frontend *fe; 3110 3111 ci = (struct ctl_iscsi *)addr; 3112 3113 fe = ctl_frontend_find("iscsi"); 3114 if (fe == NULL) { 3115 ci->status = CTL_ISCSI_ERROR; 3116 snprintf(ci->error_str, sizeof(ci->error_str), 3117 "Frontend \"iscsi\" not found."); 3118 break; 3119 } 3120 3121 retval = fe->ioctl(dev, cmd, addr, flag, td); 3122 break; 3123 } 3124 case CTL_PORT_REQ: { 3125 struct ctl_req *req; 3126 struct ctl_frontend *fe; 3127 3128 req = (struct ctl_req *)addr; 3129 3130 fe = ctl_frontend_find(req->driver); 3131 if (fe == NULL) { 3132 req->status = CTL_LUN_ERROR; 3133 snprintf(req->error_str, sizeof(req->error_str), 3134 "Frontend \"%s\" not found.", req->driver); 3135 break; 3136 } 3137 if (req->num_args > 0) { 3138 req->kern_args = ctl_copyin_args(req->num_args, 3139 req->args, req->error_str, sizeof(req->error_str)); 3140 if (req->kern_args == NULL) { 3141 req->status = CTL_LUN_ERROR; 3142 break; 3143 } 3144 } 3145 3146 if (fe->ioctl) 3147 retval = fe->ioctl(dev, cmd, addr, flag, td); 3148 else 3149 retval = ENODEV; 3150 3151 if (req->num_args > 0) { 3152 ctl_copyout_args(req->num_args, req->kern_args); 3153 ctl_free_args(req->num_args, req->kern_args); 3154 } 3155 break; 3156 } 3157 case CTL_PORT_LIST: { 3158 struct sbuf *sb; 3159 struct ctl_port *port; 3160 struct ctl_lun_list *list; 3161 struct ctl_option *opt; 3162 int j; 3163 uint32_t plun; 3164 3165 list = (struct ctl_lun_list *)addr; 3166 3167 sb = sbuf_new(NULL, NULL, list->alloc_len, SBUF_FIXEDLEN); 3168 if (sb == NULL) { 3169 list->status = CTL_LUN_LIST_ERROR; 3170 snprintf(list->error_str, sizeof(list->error_str), 3171 "Unable to allocate %d bytes for LUN list", 3172 list->alloc_len); 3173 break; 3174 } 3175 3176 sbuf_printf(sb, "<ctlportlist>\n"); 3177 3178 mtx_lock(&softc->ctl_lock); 3179 STAILQ_FOREACH(port, &softc->port_list, links) { 3180 retval = sbuf_printf(sb, "<targ_port id=\"%ju\">\n", 3181 (uintmax_t)port->targ_port); 3182 3183 /* 3184 * Bail out as soon as we see that we've overfilled 3185 * the buffer. 3186 */ 3187 if (retval != 0) 3188 break; 3189 3190 retval = sbuf_printf(sb, "\t<frontend_type>%s" 3191 "</frontend_type>\n", port->frontend->name); 3192 if (retval != 0) 3193 break; 3194 3195 retval = sbuf_printf(sb, "\t<port_type>%d</port_type>\n", 3196 port->port_type); 3197 if (retval != 0) 3198 break; 3199 3200 retval = sbuf_printf(sb, "\t<online>%s</online>\n", 3201 (port->status & CTL_PORT_STATUS_ONLINE) ? "YES" : "NO"); 3202 if (retval != 0) 3203 break; 3204 3205 retval = sbuf_printf(sb, "\t<port_name>%s</port_name>\n", 3206 port->port_name); 3207 if (retval != 0) 3208 break; 3209 3210 retval = sbuf_printf(sb, "\t<physical_port>%d</physical_port>\n", 3211 port->physical_port); 3212 if (retval != 0) 3213 break; 3214 3215 retval = sbuf_printf(sb, "\t<virtual_port>%d</virtual_port>\n", 3216 port->virtual_port); 3217 if (retval != 0) 3218 break; 3219 3220 if (port->target_devid != NULL) { 3221 sbuf_printf(sb, "\t<target>"); 3222 ctl_id_sbuf(port->target_devid, sb); 3223 sbuf_printf(sb, "</target>\n"); 3224 } 3225 3226 if (port->port_devid != NULL) { 3227 sbuf_printf(sb, "\t<port>"); 3228 ctl_id_sbuf(port->port_devid, sb); 3229 sbuf_printf(sb, "</port>\n"); 3230 } 3231 3232 if (port->port_info != NULL) { 3233 retval = port->port_info(port->onoff_arg, sb); 3234 if (retval != 0) 3235 break; 3236 } 3237 STAILQ_FOREACH(opt, &port->options, links) { 3238 retval = sbuf_printf(sb, "\t<%s>%s</%s>\n", 3239 opt->name, opt->value, opt->name); 3240 if (retval != 0) 3241 break; 3242 } 3243 3244 if (port->lun_map != NULL) { 3245 sbuf_printf(sb, "\t<lun_map>on</lun_map>\n"); 3246 for (j = 0; j < CTL_MAX_LUNS; j++) { 3247 plun = ctl_lun_map_from_port(port, j); 3248 if (plun >= CTL_MAX_LUNS) 3249 continue; 3250 sbuf_printf(sb, 3251 "\t<lun id=\"%u\">%u</lun>\n", 3252 j, plun); 3253 } 3254 } 3255 3256 for (j = 0; j < CTL_MAX_INIT_PER_PORT; j++) { 3257 if (port->wwpn_iid[j].in_use == 0 || 3258 (port->wwpn_iid[j].wwpn == 0 && 3259 port->wwpn_iid[j].name == NULL)) 3260 continue; 3261 3262 if (port->wwpn_iid[j].name != NULL) 3263 retval = sbuf_printf(sb, 3264 "\t<initiator id=\"%u\">%s</initiator>\n", 3265 j, port->wwpn_iid[j].name); 3266 else 3267 retval = sbuf_printf(sb, 3268 "\t<initiator id=\"%u\">naa.%08jx</initiator>\n", 3269 j, port->wwpn_iid[j].wwpn); 3270 if (retval != 0) 3271 break; 3272 } 3273 if (retval != 0) 3274 break; 3275 3276 retval = sbuf_printf(sb, "</targ_port>\n"); 3277 if (retval != 0) 3278 break; 3279 } 3280 mtx_unlock(&softc->ctl_lock); 3281 3282 if ((retval != 0) 3283 || ((retval = sbuf_printf(sb, "</ctlportlist>\n")) != 0)) { 3284 retval = 0; 3285 sbuf_delete(sb); 3286 list->status = CTL_LUN_LIST_NEED_MORE_SPACE; 3287 snprintf(list->error_str, sizeof(list->error_str), 3288 "Out of space, %d bytes is too small", 3289 list->alloc_len); 3290 break; 3291 } 3292 3293 sbuf_finish(sb); 3294 3295 retval = copyout(sbuf_data(sb), list->lun_xml, 3296 sbuf_len(sb) + 1); 3297 3298 list->fill_len = sbuf_len(sb) + 1; 3299 list->status = CTL_LUN_LIST_OK; 3300 sbuf_delete(sb); 3301 break; 3302 } 3303 case CTL_LUN_MAP: { 3304 struct ctl_lun_map *lm = (struct ctl_lun_map *)addr; 3305 struct ctl_port *port; 3306 3307 mtx_lock(&softc->ctl_lock); 3308 if (lm->port < softc->port_min || 3309 lm->port >= softc->port_max || 3310 (port = softc->ctl_ports[lm->port]) == NULL) { 3311 mtx_unlock(&softc->ctl_lock); 3312 return (ENXIO); 3313 } 3314 if (port->status & CTL_PORT_STATUS_ONLINE) { 3315 STAILQ_FOREACH(lun, &softc->lun_list, links) { 3316 if (ctl_lun_map_to_port(port, lun->lun) >= 3317 CTL_MAX_LUNS) 3318 continue; 3319 mtx_lock(&lun->lun_lock); 3320 ctl_est_ua_port(lun, lm->port, -1, 3321 CTL_UA_LUN_CHANGE); 3322 mtx_unlock(&lun->lun_lock); 3323 } 3324 } 3325 mtx_unlock(&softc->ctl_lock); // XXX: port_enable sleeps 3326 if (lm->plun < CTL_MAX_LUNS) { 3327 if (lm->lun == UINT32_MAX) 3328 retval = ctl_lun_map_unset(port, lm->plun); 3329 else if (lm->lun < CTL_MAX_LUNS && 3330 softc->ctl_luns[lm->lun] != NULL) 3331 retval = ctl_lun_map_set(port, lm->plun, lm->lun); 3332 else 3333 return (ENXIO); 3334 } else if (lm->plun == UINT32_MAX) { 3335 if (lm->lun == UINT32_MAX) 3336 retval = ctl_lun_map_deinit(port); 3337 else 3338 retval = ctl_lun_map_init(port); 3339 } else 3340 return (ENXIO); 3341 if (port->status & CTL_PORT_STATUS_ONLINE) 3342 ctl_isc_announce_port(port); 3343 break; 3344 } 3345 default: { 3346 /* XXX KDM should we fix this? */ 3347#if 0 3348 struct ctl_backend_driver *backend; 3349 unsigned int type; 3350 int found; 3351 3352 found = 0; 3353 3354 /* 3355 * We encode the backend type as the ioctl type for backend 3356 * ioctls. So parse it out here, and then search for a 3357 * backend of this type. 3358 */ 3359 type = _IOC_TYPE(cmd); 3360 3361 STAILQ_FOREACH(backend, &softc->be_list, links) { 3362 if (backend->type == type) { 3363 found = 1; 3364 break; 3365 } 3366 } 3367 if (found == 0) { 3368 printf("ctl: unknown ioctl command %#lx or backend " 3369 "%d\n", cmd, type); 3370 retval = EINVAL; 3371 break; 3372 } 3373 retval = backend->ioctl(dev, cmd, addr, flag, td); 3374#endif 3375 retval = ENOTTY; 3376 break; 3377 } 3378 } 3379 return (retval); 3380} 3381 3382uint32_t 3383ctl_get_initindex(struct ctl_nexus *nexus) 3384{ 3385 return (nexus->initid + (nexus->targ_port * CTL_MAX_INIT_PER_PORT)); 3386} 3387 3388int 3389ctl_lun_map_init(struct ctl_port *port) 3390{ 3391 struct ctl_softc *softc = port->ctl_softc; 3392 struct ctl_lun *lun; 3393 uint32_t i; 3394 3395 if (port->lun_map == NULL) 3396 port->lun_map = malloc(sizeof(uint32_t) * CTL_MAX_LUNS, 3397 M_CTL, M_NOWAIT); 3398 if (port->lun_map == NULL) 3399 return (ENOMEM); 3400 for (i = 0; i < CTL_MAX_LUNS; i++) 3401 port->lun_map[i] = UINT32_MAX; 3402 if (port->status & CTL_PORT_STATUS_ONLINE) { 3403 if (port->lun_disable != NULL) { 3404 STAILQ_FOREACH(lun, &softc->lun_list, links) 3405 port->lun_disable(port->targ_lun_arg, lun->lun); 3406 } 3407 ctl_isc_announce_port(port); 3408 } 3409 return (0); 3410} 3411 3412int 3413ctl_lun_map_deinit(struct ctl_port *port) 3414{ 3415 struct ctl_softc *softc = port->ctl_softc; 3416 struct ctl_lun *lun; 3417 3418 if (port->lun_map == NULL) 3419 return (0); 3420 free(port->lun_map, M_CTL); 3421 port->lun_map = NULL; 3422 if (port->status & CTL_PORT_STATUS_ONLINE) { 3423 if (port->lun_enable != NULL) { 3424 STAILQ_FOREACH(lun, &softc->lun_list, links) 3425 port->lun_enable(port->targ_lun_arg, lun->lun); 3426 } 3427 ctl_isc_announce_port(port); 3428 } 3429 return (0); 3430} 3431 3432int 3433ctl_lun_map_set(struct ctl_port *port, uint32_t plun, uint32_t glun) 3434{ 3435 int status; 3436 uint32_t old; 3437 3438 if (port->lun_map == NULL) { 3439 status = ctl_lun_map_init(port); 3440 if (status != 0) 3441 return (status); 3442 } 3443 old = port->lun_map[plun]; 3444 port->lun_map[plun] = glun; 3445 if ((port->status & CTL_PORT_STATUS_ONLINE) && old >= CTL_MAX_LUNS) { 3446 if (port->lun_enable != NULL) 3447 port->lun_enable(port->targ_lun_arg, plun); 3448 ctl_isc_announce_port(port); 3449 } 3450 return (0); 3451} 3452 3453int 3454ctl_lun_map_unset(struct ctl_port *port, uint32_t plun) 3455{ 3456 uint32_t old; 3457 3458 if (port->lun_map == NULL) 3459 return (0); 3460 old = port->lun_map[plun]; 3461 port->lun_map[plun] = UINT32_MAX; 3462 if ((port->status & CTL_PORT_STATUS_ONLINE) && old < CTL_MAX_LUNS) { 3463 if (port->lun_disable != NULL) 3464 port->lun_disable(port->targ_lun_arg, plun); 3465 ctl_isc_announce_port(port); 3466 } 3467 return (0); 3468} 3469 3470uint32_t 3471ctl_lun_map_from_port(struct ctl_port *port, uint32_t lun_id) 3472{ 3473 3474 if (port == NULL) 3475 return (UINT32_MAX); 3476 if (port->lun_map == NULL || lun_id >= CTL_MAX_LUNS) 3477 return (lun_id); 3478 return (port->lun_map[lun_id]); 3479} 3480 3481uint32_t 3482ctl_lun_map_to_port(struct ctl_port *port, uint32_t lun_id) 3483{ 3484 uint32_t i; 3485 3486 if (port == NULL) 3487 return (UINT32_MAX); 3488 if (port->lun_map == NULL) 3489 return (lun_id); 3490 for (i = 0; i < CTL_MAX_LUNS; i++) { 3491 if (port->lun_map[i] == lun_id) 3492 return (i); 3493 } 3494 return (UINT32_MAX); 3495} 3496 3497static struct ctl_port * 3498ctl_io_port(struct ctl_io_hdr *io_hdr) 3499{ 3500 3501 return (control_softc->ctl_ports[io_hdr->nexus.targ_port]); 3502} 3503 3504int 3505ctl_ffz(uint32_t *mask, uint32_t first, uint32_t last) 3506{ 3507 int i; 3508 3509 for (i = first; i < last; i++) { 3510 if ((mask[i / 32] & (1 << (i % 32))) == 0) 3511 return (i); 3512 } 3513 return (-1); 3514} 3515 3516int 3517ctl_set_mask(uint32_t *mask, uint32_t bit) 3518{ 3519 uint32_t chunk, piece; 3520 3521 chunk = bit >> 5; 3522 piece = bit % (sizeof(uint32_t) * 8); 3523 3524 if ((mask[chunk] & (1 << piece)) != 0) 3525 return (-1); 3526 else 3527 mask[chunk] |= (1 << piece); 3528 3529 return (0); 3530} 3531 3532int 3533ctl_clear_mask(uint32_t *mask, uint32_t bit) 3534{ 3535 uint32_t chunk, piece; 3536 3537 chunk = bit >> 5; 3538 piece = bit % (sizeof(uint32_t) * 8); 3539 3540 if ((mask[chunk] & (1 << piece)) == 0) 3541 return (-1); 3542 else 3543 mask[chunk] &= ~(1 << piece); 3544 3545 return (0); 3546} 3547 3548int 3549ctl_is_set(uint32_t *mask, uint32_t bit) 3550{ 3551 uint32_t chunk, piece; 3552 3553 chunk = bit >> 5; 3554 piece = bit % (sizeof(uint32_t) * 8); 3555 3556 if ((mask[chunk] & (1 << piece)) == 0) 3557 return (0); 3558 else 3559 return (1); 3560} 3561 3562static uint64_t 3563ctl_get_prkey(struct ctl_lun *lun, uint32_t residx) 3564{ 3565 uint64_t *t; 3566 3567 t = lun->pr_keys[residx/CTL_MAX_INIT_PER_PORT]; 3568 if (t == NULL) 3569 return (0); 3570 return (t[residx % CTL_MAX_INIT_PER_PORT]); 3571} 3572 3573static void 3574ctl_clr_prkey(struct ctl_lun *lun, uint32_t residx) 3575{ 3576 uint64_t *t; 3577 3578 t = lun->pr_keys[residx/CTL_MAX_INIT_PER_PORT]; 3579 if (t == NULL) 3580 return; 3581 t[residx % CTL_MAX_INIT_PER_PORT] = 0; 3582} 3583 3584static void 3585ctl_alloc_prkey(struct ctl_lun *lun, uint32_t residx) 3586{ 3587 uint64_t *p; 3588 u_int i; 3589 3590 i = residx/CTL_MAX_INIT_PER_PORT; 3591 if (lun->pr_keys[i] != NULL) 3592 return; 3593 mtx_unlock(&lun->lun_lock); 3594 p = malloc(sizeof(uint64_t) * CTL_MAX_INIT_PER_PORT, M_CTL, 3595 M_WAITOK | M_ZERO); 3596 mtx_lock(&lun->lun_lock); 3597 if (lun->pr_keys[i] == NULL) 3598 lun->pr_keys[i] = p; 3599 else 3600 free(p, M_CTL); 3601} 3602 3603static void 3604ctl_set_prkey(struct ctl_lun *lun, uint32_t residx, uint64_t key) 3605{ 3606 uint64_t *t; 3607 3608 t = lun->pr_keys[residx/CTL_MAX_INIT_PER_PORT]; 3609 KASSERT(t != NULL, ("prkey %d is not allocated", residx)); 3610 t[residx % CTL_MAX_INIT_PER_PORT] = key; 3611} 3612 3613/* 3614 * ctl_softc, pool_name, total_ctl_io are passed in. 3615 * npool is passed out. 3616 */ 3617int 3618ctl_pool_create(struct ctl_softc *ctl_softc, const char *pool_name, 3619 uint32_t total_ctl_io, void **npool) 3620{ 3621#ifdef IO_POOLS 3622 struct ctl_io_pool *pool; 3623 3624 pool = (struct ctl_io_pool *)malloc(sizeof(*pool), M_CTL, 3625 M_NOWAIT | M_ZERO); 3626 if (pool == NULL) 3627 return (ENOMEM); 3628 3629 snprintf(pool->name, sizeof(pool->name), "CTL IO %s", pool_name); 3630 pool->ctl_softc = ctl_softc; 3631 pool->zone = uma_zsecond_create(pool->name, NULL, 3632 NULL, NULL, NULL, ctl_softc->io_zone); 3633 /* uma_prealloc(pool->zone, total_ctl_io); */ 3634 3635 *npool = pool; 3636#else 3637 *npool = ctl_softc->io_zone; 3638#endif 3639 return (0); 3640} 3641 3642void 3643ctl_pool_free(struct ctl_io_pool *pool) 3644{ 3645 3646 if (pool == NULL) 3647 return; 3648 3649#ifdef IO_POOLS 3650 uma_zdestroy(pool->zone); 3651 free(pool, M_CTL); 3652#endif 3653} 3654 3655union ctl_io * 3656ctl_alloc_io(void *pool_ref) 3657{ 3658 union ctl_io *io; 3659#ifdef IO_POOLS 3660 struct ctl_io_pool *pool = (struct ctl_io_pool *)pool_ref; 3661 3662 io = uma_zalloc(pool->zone, M_WAITOK); 3663#else 3664 io = uma_zalloc((uma_zone_t)pool_ref, M_WAITOK); 3665#endif 3666 if (io != NULL) 3667 io->io_hdr.pool = pool_ref; 3668 return (io); 3669} 3670 3671union ctl_io * 3672ctl_alloc_io_nowait(void *pool_ref) 3673{ 3674 union ctl_io *io; 3675#ifdef IO_POOLS 3676 struct ctl_io_pool *pool = (struct ctl_io_pool *)pool_ref; 3677 3678 io = uma_zalloc(pool->zone, M_NOWAIT); 3679#else 3680 io = uma_zalloc((uma_zone_t)pool_ref, M_NOWAIT); 3681#endif 3682 if (io != NULL) 3683 io->io_hdr.pool = pool_ref; 3684 return (io); 3685} 3686 3687void 3688ctl_free_io(union ctl_io *io) 3689{ 3690#ifdef IO_POOLS 3691 struct ctl_io_pool *pool; 3692#endif 3693 3694 if (io == NULL) 3695 return; 3696 3697#ifdef IO_POOLS 3698 pool = (struct ctl_io_pool *)io->io_hdr.pool; 3699 uma_zfree(pool->zone, io); 3700#else 3701 uma_zfree((uma_zone_t)io->io_hdr.pool, io); 3702#endif 3703} 3704 3705void 3706ctl_zero_io(union ctl_io *io) 3707{ 3708 void *pool_ref; 3709 3710 if (io == NULL) 3711 return; 3712 3713 /* 3714 * May need to preserve linked list pointers at some point too. 3715 */ 3716 pool_ref = io->io_hdr.pool; 3717 memset(io, 0, sizeof(*io)); 3718 io->io_hdr.pool = pool_ref; 3719} 3720 3721/* 3722 * This routine is currently used for internal copies of ctl_ios that need 3723 * to persist for some reason after we've already returned status to the 3724 * FETD. (Thus the flag set.) 3725 * 3726 * XXX XXX 3727 * Note that this makes a blind copy of all fields in the ctl_io, except 3728 * for the pool reference. This includes any memory that has been 3729 * allocated! That memory will no longer be valid after done has been 3730 * called, so this would be VERY DANGEROUS for command that actually does 3731 * any reads or writes. Right now (11/7/2005), this is only used for immediate 3732 * start and stop commands, which don't transfer any data, so this is not a 3733 * problem. If it is used for anything else, the caller would also need to 3734 * allocate data buffer space and this routine would need to be modified to 3735 * copy the data buffer(s) as well. 3736 */ 3737void 3738ctl_copy_io(union ctl_io *src, union ctl_io *dest) 3739{ 3740 void *pool_ref; 3741 3742 if ((src == NULL) 3743 || (dest == NULL)) 3744 return; 3745 3746 /* 3747 * May need to preserve linked list pointers at some point too. 3748 */ 3749 pool_ref = dest->io_hdr.pool; 3750 3751 memcpy(dest, src, MIN(sizeof(*src), sizeof(*dest))); 3752 3753 dest->io_hdr.pool = pool_ref; 3754 /* 3755 * We need to know that this is an internal copy, and doesn't need 3756 * to get passed back to the FETD that allocated it. 3757 */ 3758 dest->io_hdr.flags |= CTL_FLAG_INT_COPY; 3759} 3760 3761int 3762ctl_expand_number(const char *buf, uint64_t *num) 3763{ 3764 char *endptr; 3765 uint64_t number; 3766 unsigned shift; 3767 3768 number = strtoq(buf, &endptr, 0); 3769 3770 switch (tolower((unsigned char)*endptr)) { 3771 case 'e': 3772 shift = 60; 3773 break; 3774 case 'p': 3775 shift = 50; 3776 break; 3777 case 't': 3778 shift = 40; 3779 break; 3780 case 'g': 3781 shift = 30; 3782 break; 3783 case 'm': 3784 shift = 20; 3785 break; 3786 case 'k': 3787 shift = 10; 3788 break; 3789 case 'b': 3790 case '\0': /* No unit. */ 3791 *num = number; 3792 return (0); 3793 default: 3794 /* Unrecognized unit. */ 3795 return (-1); 3796 } 3797 3798 if ((number << shift) >> shift != number) { 3799 /* Overflow */ 3800 return (-1); 3801 } 3802 *num = number << shift; 3803 return (0); 3804} 3805 3806 3807/* 3808 * This routine could be used in the future to load default and/or saved 3809 * mode page parameters for a particuar lun. 3810 */ 3811static int 3812ctl_init_page_index(struct ctl_lun *lun) 3813{ 3814 int i; 3815 struct ctl_page_index *page_index; 3816 const char *value; 3817 uint64_t ival; 3818 3819 memcpy(&lun->mode_pages.index, page_index_template, 3820 sizeof(page_index_template)); 3821 3822 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 3823 3824 page_index = &lun->mode_pages.index[i]; 3825 if (lun->be_lun->lun_type == T_DIRECT && 3826 (page_index->page_flags & CTL_PAGE_FLAG_DIRECT) == 0) 3827 continue; 3828 if (lun->be_lun->lun_type == T_PROCESSOR && 3829 (page_index->page_flags & CTL_PAGE_FLAG_PROC) == 0) 3830 continue; 3831 if (lun->be_lun->lun_type == T_CDROM && 3832 (page_index->page_flags & CTL_PAGE_FLAG_CDROM) == 0) 3833 continue; 3834 3835 switch (page_index->page_code & SMPH_PC_MASK) { 3836 case SMS_RW_ERROR_RECOVERY_PAGE: { 3837 if (page_index->subpage != SMS_SUBPAGE_PAGE_0) 3838 panic("subpage is incorrect!"); 3839 memcpy(&lun->mode_pages.rw_er_page[CTL_PAGE_CURRENT], 3840 &rw_er_page_default, 3841 sizeof(rw_er_page_default)); 3842 memcpy(&lun->mode_pages.rw_er_page[CTL_PAGE_CHANGEABLE], 3843 &rw_er_page_changeable, 3844 sizeof(rw_er_page_changeable)); 3845 memcpy(&lun->mode_pages.rw_er_page[CTL_PAGE_DEFAULT], 3846 &rw_er_page_default, 3847 sizeof(rw_er_page_default)); 3848 memcpy(&lun->mode_pages.rw_er_page[CTL_PAGE_SAVED], 3849 &rw_er_page_default, 3850 sizeof(rw_er_page_default)); 3851 page_index->page_data = 3852 (uint8_t *)lun->mode_pages.rw_er_page; 3853 break; 3854 } 3855 case SMS_FORMAT_DEVICE_PAGE: { 3856 struct scsi_format_page *format_page; 3857 3858 if (page_index->subpage != SMS_SUBPAGE_PAGE_0) 3859 panic("subpage is incorrect!"); 3860 3861 /* 3862 * Sectors per track are set above. Bytes per 3863 * sector need to be set here on a per-LUN basis. 3864 */ 3865 memcpy(&lun->mode_pages.format_page[CTL_PAGE_CURRENT], 3866 &format_page_default, 3867 sizeof(format_page_default)); 3868 memcpy(&lun->mode_pages.format_page[ 3869 CTL_PAGE_CHANGEABLE], &format_page_changeable, 3870 sizeof(format_page_changeable)); 3871 memcpy(&lun->mode_pages.format_page[CTL_PAGE_DEFAULT], 3872 &format_page_default, 3873 sizeof(format_page_default)); 3874 memcpy(&lun->mode_pages.format_page[CTL_PAGE_SAVED], 3875 &format_page_default, 3876 sizeof(format_page_default)); 3877 3878 format_page = &lun->mode_pages.format_page[ 3879 CTL_PAGE_CURRENT]; 3880 scsi_ulto2b(lun->be_lun->blocksize, 3881 format_page->bytes_per_sector); 3882 3883 format_page = &lun->mode_pages.format_page[ 3884 CTL_PAGE_DEFAULT]; 3885 scsi_ulto2b(lun->be_lun->blocksize, 3886 format_page->bytes_per_sector); 3887 3888 format_page = &lun->mode_pages.format_page[ 3889 CTL_PAGE_SAVED]; 3890 scsi_ulto2b(lun->be_lun->blocksize, 3891 format_page->bytes_per_sector); 3892 3893 page_index->page_data = 3894 (uint8_t *)lun->mode_pages.format_page; 3895 break; 3896 } 3897 case SMS_RIGID_DISK_PAGE: { 3898 struct scsi_rigid_disk_page *rigid_disk_page; 3899 uint32_t sectors_per_cylinder; 3900 uint64_t cylinders; 3901#ifndef __XSCALE__ 3902 int shift; 3903#endif /* !__XSCALE__ */ 3904 3905 if (page_index->subpage != SMS_SUBPAGE_PAGE_0) 3906 panic("invalid subpage value %d", 3907 page_index->subpage); 3908 3909 /* 3910 * Rotation rate and sectors per track are set 3911 * above. We calculate the cylinders here based on 3912 * capacity. Due to the number of heads and 3913 * sectors per track we're using, smaller arrays 3914 * may turn out to have 0 cylinders. Linux and 3915 * FreeBSD don't pay attention to these mode pages 3916 * to figure out capacity, but Solaris does. It 3917 * seems to deal with 0 cylinders just fine, and 3918 * works out a fake geometry based on the capacity. 3919 */ 3920 memcpy(&lun->mode_pages.rigid_disk_page[ 3921 CTL_PAGE_DEFAULT], &rigid_disk_page_default, 3922 sizeof(rigid_disk_page_default)); 3923 memcpy(&lun->mode_pages.rigid_disk_page[ 3924 CTL_PAGE_CHANGEABLE],&rigid_disk_page_changeable, 3925 sizeof(rigid_disk_page_changeable)); 3926 3927 sectors_per_cylinder = CTL_DEFAULT_SECTORS_PER_TRACK * 3928 CTL_DEFAULT_HEADS; 3929 3930 /* 3931 * The divide method here will be more accurate, 3932 * probably, but results in floating point being 3933 * used in the kernel on i386 (__udivdi3()). On the 3934 * XScale, though, __udivdi3() is implemented in 3935 * software. 3936 * 3937 * The shift method for cylinder calculation is 3938 * accurate if sectors_per_cylinder is a power of 3939 * 2. Otherwise it might be slightly off -- you 3940 * might have a bit of a truncation problem. 3941 */ 3942#ifdef __XSCALE__ 3943 cylinders = (lun->be_lun->maxlba + 1) / 3944 sectors_per_cylinder; 3945#else 3946 for (shift = 31; shift > 0; shift--) { 3947 if (sectors_per_cylinder & (1 << shift)) 3948 break; 3949 } 3950 cylinders = (lun->be_lun->maxlba + 1) >> shift; 3951#endif 3952 3953 /* 3954 * We've basically got 3 bytes, or 24 bits for the 3955 * cylinder size in the mode page. If we're over, 3956 * just round down to 2^24. 3957 */ 3958 if (cylinders > 0xffffff) 3959 cylinders = 0xffffff; 3960 3961 rigid_disk_page = &lun->mode_pages.rigid_disk_page[ 3962 CTL_PAGE_DEFAULT]; 3963 scsi_ulto3b(cylinders, rigid_disk_page->cylinders); 3964 3965 if ((value = ctl_get_opt(&lun->be_lun->options, 3966 "rpm")) != NULL) { 3967 scsi_ulto2b(strtol(value, NULL, 0), 3968 rigid_disk_page->rotation_rate); 3969 } 3970 3971 memcpy(&lun->mode_pages.rigid_disk_page[CTL_PAGE_CURRENT], 3972 &lun->mode_pages.rigid_disk_page[CTL_PAGE_DEFAULT], 3973 sizeof(rigid_disk_page_default)); 3974 memcpy(&lun->mode_pages.rigid_disk_page[CTL_PAGE_SAVED], 3975 &lun->mode_pages.rigid_disk_page[CTL_PAGE_DEFAULT], 3976 sizeof(rigid_disk_page_default)); 3977 3978 page_index->page_data = 3979 (uint8_t *)lun->mode_pages.rigid_disk_page; 3980 break; 3981 } 3982 case SMS_CACHING_PAGE: { 3983 struct scsi_caching_page *caching_page; 3984 3985 if (page_index->subpage != SMS_SUBPAGE_PAGE_0) 3986 panic("invalid subpage value %d", 3987 page_index->subpage); 3988 memcpy(&lun->mode_pages.caching_page[CTL_PAGE_DEFAULT], 3989 &caching_page_default, 3990 sizeof(caching_page_default)); 3991 memcpy(&lun->mode_pages.caching_page[ 3992 CTL_PAGE_CHANGEABLE], &caching_page_changeable, 3993 sizeof(caching_page_changeable)); 3994 memcpy(&lun->mode_pages.caching_page[CTL_PAGE_SAVED], 3995 &caching_page_default, 3996 sizeof(caching_page_default)); 3997 caching_page = &lun->mode_pages.caching_page[ 3998 CTL_PAGE_SAVED]; 3999 value = ctl_get_opt(&lun->be_lun->options, "writecache"); 4000 if (value != NULL && strcmp(value, "off") == 0) 4001 caching_page->flags1 &= ~SCP_WCE; 4002 value = ctl_get_opt(&lun->be_lun->options, "readcache"); 4003 if (value != NULL && strcmp(value, "off") == 0) 4004 caching_page->flags1 |= SCP_RCD; 4005 memcpy(&lun->mode_pages.caching_page[CTL_PAGE_CURRENT], 4006 &lun->mode_pages.caching_page[CTL_PAGE_SAVED], 4007 sizeof(caching_page_default)); 4008 page_index->page_data = 4009 (uint8_t *)lun->mode_pages.caching_page; 4010 break; 4011 } 4012 case SMS_CONTROL_MODE_PAGE: { 4013 switch (page_index->subpage) { 4014 case SMS_SUBPAGE_PAGE_0: { 4015 struct scsi_control_page *control_page; 4016 4017 memcpy(&lun->mode_pages.control_page[ 4018 CTL_PAGE_DEFAULT], 4019 &control_page_default, 4020 sizeof(control_page_default)); 4021 memcpy(&lun->mode_pages.control_page[ 4022 CTL_PAGE_CHANGEABLE], 4023 &control_page_changeable, 4024 sizeof(control_page_changeable)); 4025 memcpy(&lun->mode_pages.control_page[ 4026 CTL_PAGE_SAVED], 4027 &control_page_default, 4028 sizeof(control_page_default)); 4029 control_page = &lun->mode_pages.control_page[ 4030 CTL_PAGE_SAVED]; 4031 value = ctl_get_opt(&lun->be_lun->options, 4032 "reordering"); 4033 if (value != NULL && 4034 strcmp(value, "unrestricted") == 0) { 4035 control_page->queue_flags &= 4036 ~SCP_QUEUE_ALG_MASK; 4037 control_page->queue_flags |= 4038 SCP_QUEUE_ALG_UNRESTRICTED; 4039 } 4040 memcpy(&lun->mode_pages.control_page[ 4041 CTL_PAGE_CURRENT], 4042 &lun->mode_pages.control_page[ 4043 CTL_PAGE_SAVED], 4044 sizeof(control_page_default)); 4045 page_index->page_data = 4046 (uint8_t *)lun->mode_pages.control_page; 4047 break; 4048 } 4049 case 0x01: 4050 memcpy(&lun->mode_pages.control_ext_page[ 4051 CTL_PAGE_DEFAULT], 4052 &control_ext_page_default, 4053 sizeof(control_ext_page_default)); 4054 memcpy(&lun->mode_pages.control_ext_page[ 4055 CTL_PAGE_CHANGEABLE], 4056 &control_ext_page_changeable, 4057 sizeof(control_ext_page_changeable)); 4058 memcpy(&lun->mode_pages.control_ext_page[ 4059 CTL_PAGE_SAVED], 4060 &control_ext_page_default, 4061 sizeof(control_ext_page_default)); 4062 memcpy(&lun->mode_pages.control_ext_page[ 4063 CTL_PAGE_CURRENT], 4064 &lun->mode_pages.control_ext_page[ 4065 CTL_PAGE_SAVED], 4066 sizeof(control_ext_page_default)); 4067 page_index->page_data = 4068 (uint8_t *)lun->mode_pages.control_ext_page; 4069 break; 4070 } 4071 break; 4072 } 4073 case SMS_INFO_EXCEPTIONS_PAGE: { 4074 switch (page_index->subpage) { 4075 case SMS_SUBPAGE_PAGE_0: 4076 memcpy(&lun->mode_pages.ie_page[CTL_PAGE_CURRENT], 4077 &ie_page_default, 4078 sizeof(ie_page_default)); 4079 memcpy(&lun->mode_pages.ie_page[ 4080 CTL_PAGE_CHANGEABLE], &ie_page_changeable, 4081 sizeof(ie_page_changeable)); 4082 memcpy(&lun->mode_pages.ie_page[CTL_PAGE_DEFAULT], 4083 &ie_page_default, 4084 sizeof(ie_page_default)); 4085 memcpy(&lun->mode_pages.ie_page[CTL_PAGE_SAVED], 4086 &ie_page_default, 4087 sizeof(ie_page_default)); 4088 page_index->page_data = 4089 (uint8_t *)lun->mode_pages.ie_page; 4090 break; 4091 case 0x02: { 4092 struct ctl_logical_block_provisioning_page *page; 4093 4094 memcpy(&lun->mode_pages.lbp_page[CTL_PAGE_DEFAULT], 4095 &lbp_page_default, 4096 sizeof(lbp_page_default)); 4097 memcpy(&lun->mode_pages.lbp_page[ 4098 CTL_PAGE_CHANGEABLE], &lbp_page_changeable, 4099 sizeof(lbp_page_changeable)); 4100 memcpy(&lun->mode_pages.lbp_page[CTL_PAGE_SAVED], 4101 &lbp_page_default, 4102 sizeof(lbp_page_default)); 4103 page = &lun->mode_pages.lbp_page[CTL_PAGE_SAVED]; 4104 value = ctl_get_opt(&lun->be_lun->options, 4105 "avail-threshold"); 4106 if (value != NULL && 4107 ctl_expand_number(value, &ival) == 0) { 4108 page->descr[0].flags |= SLBPPD_ENABLED | 4109 SLBPPD_ARMING_DEC; 4110 if (lun->be_lun->blocksize) 4111 ival /= lun->be_lun->blocksize; 4112 else 4113 ival /= 512; 4114 scsi_ulto4b(ival >> CTL_LBP_EXPONENT, 4115 page->descr[0].count); 4116 } 4117 value = ctl_get_opt(&lun->be_lun->options, 4118 "used-threshold"); 4119 if (value != NULL && 4120 ctl_expand_number(value, &ival) == 0) { 4121 page->descr[1].flags |= SLBPPD_ENABLED | 4122 SLBPPD_ARMING_INC; 4123 if (lun->be_lun->blocksize) 4124 ival /= lun->be_lun->blocksize; 4125 else 4126 ival /= 512; 4127 scsi_ulto4b(ival >> CTL_LBP_EXPONENT, 4128 page->descr[1].count); 4129 } 4130 value = ctl_get_opt(&lun->be_lun->options, 4131 "pool-avail-threshold"); 4132 if (value != NULL && 4133 ctl_expand_number(value, &ival) == 0) { 4134 page->descr[2].flags |= SLBPPD_ENABLED | 4135 SLBPPD_ARMING_DEC; 4136 if (lun->be_lun->blocksize) 4137 ival /= lun->be_lun->blocksize; 4138 else 4139 ival /= 512; 4140 scsi_ulto4b(ival >> CTL_LBP_EXPONENT, 4141 page->descr[2].count); 4142 } 4143 value = ctl_get_opt(&lun->be_lun->options, 4144 "pool-used-threshold"); 4145 if (value != NULL && 4146 ctl_expand_number(value, &ival) == 0) { 4147 page->descr[3].flags |= SLBPPD_ENABLED | 4148 SLBPPD_ARMING_INC; 4149 if (lun->be_lun->blocksize) 4150 ival /= lun->be_lun->blocksize; 4151 else 4152 ival /= 512; 4153 scsi_ulto4b(ival >> CTL_LBP_EXPONENT, 4154 page->descr[3].count); 4155 } 4156 memcpy(&lun->mode_pages.lbp_page[CTL_PAGE_CURRENT], 4157 &lun->mode_pages.lbp_page[CTL_PAGE_SAVED], 4158 sizeof(lbp_page_default)); 4159 page_index->page_data = 4160 (uint8_t *)lun->mode_pages.lbp_page; 4161 }} 4162 break; 4163 } 4164 case SMS_VENDOR_SPECIFIC_PAGE:{ 4165 switch (page_index->subpage) { 4166 case DBGCNF_SUBPAGE_CODE: { 4167 memcpy(&lun->mode_pages.debugconf_subpage[ 4168 CTL_PAGE_CURRENT], 4169 &debugconf_page_default, 4170 sizeof(debugconf_page_default)); 4171 memcpy(&lun->mode_pages.debugconf_subpage[ 4172 CTL_PAGE_CHANGEABLE], 4173 &debugconf_page_changeable, 4174 sizeof(debugconf_page_changeable)); 4175 memcpy(&lun->mode_pages.debugconf_subpage[ 4176 CTL_PAGE_DEFAULT], 4177 &debugconf_page_default, 4178 sizeof(debugconf_page_default)); 4179 memcpy(&lun->mode_pages.debugconf_subpage[ 4180 CTL_PAGE_SAVED], 4181 &debugconf_page_default, 4182 sizeof(debugconf_page_default)); 4183 page_index->page_data = 4184 (uint8_t *)lun->mode_pages.debugconf_subpage; 4185 break; 4186 } 4187 default: 4188 panic("invalid subpage value %d", 4189 page_index->subpage); 4190 break; 4191 } 4192 break; 4193 } 4194 default: 4195 panic("invalid page value %d", 4196 page_index->page_code & SMPH_PC_MASK); 4197 break; 4198 } 4199 } 4200 4201 return (CTL_RETVAL_COMPLETE); 4202} 4203 4204static int 4205ctl_init_log_page_index(struct ctl_lun *lun) 4206{ 4207 struct ctl_page_index *page_index; 4208 int i, j, k, prev; 4209 4210 memcpy(&lun->log_pages.index, log_page_index_template, 4211 sizeof(log_page_index_template)); 4212 4213 prev = -1; 4214 for (i = 0, j = 0, k = 0; i < CTL_NUM_LOG_PAGES; i++) { 4215 4216 page_index = &lun->log_pages.index[i]; 4217 if (lun->be_lun->lun_type == T_DIRECT && 4218 (page_index->page_flags & CTL_PAGE_FLAG_DIRECT) == 0) 4219 continue; 4220 if (lun->be_lun->lun_type == T_PROCESSOR && 4221 (page_index->page_flags & CTL_PAGE_FLAG_PROC) == 0) 4222 continue; 4223 if (lun->be_lun->lun_type == T_CDROM && 4224 (page_index->page_flags & CTL_PAGE_FLAG_CDROM) == 0) 4225 continue; 4226 4227 if (page_index->page_code == SLS_LOGICAL_BLOCK_PROVISIONING && 4228 lun->backend->lun_attr == NULL) 4229 continue; 4230 4231 if (page_index->page_code != prev) { 4232 lun->log_pages.pages_page[j] = page_index->page_code; 4233 prev = page_index->page_code; 4234 j++; 4235 } 4236 lun->log_pages.subpages_page[k*2] = page_index->page_code; 4237 lun->log_pages.subpages_page[k*2+1] = page_index->subpage; 4238 k++; 4239 } 4240 lun->log_pages.index[0].page_data = &lun->log_pages.pages_page[0]; 4241 lun->log_pages.index[0].page_len = j; 4242 lun->log_pages.index[1].page_data = &lun->log_pages.subpages_page[0]; 4243 lun->log_pages.index[1].page_len = k * 2; 4244 lun->log_pages.index[2].page_data = &lun->log_pages.lbp_page[0]; 4245 lun->log_pages.index[2].page_len = 12*CTL_NUM_LBP_PARAMS; 4246 lun->log_pages.index[3].page_data = (uint8_t *)&lun->log_pages.stat_page; 4247 lun->log_pages.index[3].page_len = sizeof(lun->log_pages.stat_page); 4248 4249 return (CTL_RETVAL_COMPLETE); 4250} 4251 4252static int 4253hex2bin(const char *str, uint8_t *buf, int buf_size) 4254{ 4255 int i; 4256 u_char c; 4257 4258 memset(buf, 0, buf_size); 4259 while (isspace(str[0])) 4260 str++; 4261 if (str[0] == '0' && (str[1] == 'x' || str[1] == 'X')) 4262 str += 2; 4263 buf_size *= 2; 4264 for (i = 0; str[i] != 0 && i < buf_size; i++) { 4265 c = str[i]; 4266 if (isdigit(c)) 4267 c -= '0'; 4268 else if (isalpha(c)) 4269 c -= isupper(c) ? 'A' - 10 : 'a' - 10; 4270 else 4271 break; 4272 if (c >= 16) 4273 break; 4274 if ((i & 1) == 0) 4275 buf[i / 2] |= (c << 4); 4276 else 4277 buf[i / 2] |= c; 4278 } 4279 return ((i + 1) / 2); 4280} 4281 4282/* 4283 * LUN allocation. 4284 * 4285 * Requirements: 4286 * - caller allocates and zeros LUN storage, or passes in a NULL LUN if he 4287 * wants us to allocate the LUN and he can block. 4288 * - ctl_softc is always set 4289 * - be_lun is set if the LUN has a backend (needed for disk LUNs) 4290 * 4291 * Returns 0 for success, non-zero (errno) for failure. 4292 */ 4293static int 4294ctl_alloc_lun(struct ctl_softc *ctl_softc, struct ctl_lun *ctl_lun, 4295 struct ctl_be_lun *const be_lun) 4296{ 4297 struct ctl_lun *nlun, *lun; 4298 struct scsi_vpd_id_descriptor *desc; 4299 struct scsi_vpd_id_t10 *t10id; 4300 const char *eui, *naa, *scsiname, *vendor, *value; 4301 int lun_number, i, lun_malloced; 4302 int devidlen, idlen1, idlen2 = 0, len; 4303 4304 if (be_lun == NULL) 4305 return (EINVAL); 4306 4307 /* 4308 * We currently only support Direct Access or Processor LUN types. 4309 */ 4310 switch (be_lun->lun_type) { 4311 case T_DIRECT: 4312 case T_PROCESSOR: 4313 case T_CDROM: 4314 break; 4315 case T_SEQUENTIAL: 4316 case T_CHANGER: 4317 default: 4318 be_lun->lun_config_status(be_lun->be_lun, 4319 CTL_LUN_CONFIG_FAILURE); 4320 break; 4321 } 4322 if (ctl_lun == NULL) { 4323 lun = malloc(sizeof(*lun), M_CTL, M_WAITOK); 4324 lun_malloced = 1; 4325 } else { 4326 lun_malloced = 0; 4327 lun = ctl_lun; 4328 } 4329 4330 memset(lun, 0, sizeof(*lun)); 4331 if (lun_malloced) 4332 lun->flags = CTL_LUN_MALLOCED; 4333 4334 /* Generate LUN ID. */ 4335 devidlen = max(CTL_DEVID_MIN_LEN, 4336 strnlen(be_lun->device_id, CTL_DEVID_LEN)); 4337 idlen1 = sizeof(*t10id) + devidlen; 4338 len = sizeof(struct scsi_vpd_id_descriptor) + idlen1; 4339 scsiname = ctl_get_opt(&be_lun->options, "scsiname"); 4340 if (scsiname != NULL) { 4341 idlen2 = roundup2(strlen(scsiname) + 1, 4); 4342 len += sizeof(struct scsi_vpd_id_descriptor) + idlen2; 4343 } 4344 eui = ctl_get_opt(&be_lun->options, "eui"); 4345 if (eui != NULL) { 4346 len += sizeof(struct scsi_vpd_id_descriptor) + 16; 4347 } 4348 naa = ctl_get_opt(&be_lun->options, "naa"); 4349 if (naa != NULL) { 4350 len += sizeof(struct scsi_vpd_id_descriptor) + 16; 4351 } 4352 lun->lun_devid = malloc(sizeof(struct ctl_devid) + len, 4353 M_CTL, M_WAITOK | M_ZERO); 4354 desc = (struct scsi_vpd_id_descriptor *)lun->lun_devid->data; 4355 desc->proto_codeset = SVPD_ID_CODESET_ASCII; 4356 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | SVPD_ID_TYPE_T10; 4357 desc->length = idlen1; 4358 t10id = (struct scsi_vpd_id_t10 *)&desc->identifier[0]; 4359 memset(t10id->vendor, ' ', sizeof(t10id->vendor)); 4360 if ((vendor = ctl_get_opt(&be_lun->options, "vendor")) == NULL) { 4361 strncpy((char *)t10id->vendor, CTL_VENDOR, sizeof(t10id->vendor)); 4362 } else { 4363 strncpy(t10id->vendor, vendor, 4364 min(sizeof(t10id->vendor), strlen(vendor))); 4365 } 4366 strncpy((char *)t10id->vendor_spec_id, 4367 (char *)be_lun->device_id, devidlen); 4368 if (scsiname != NULL) { 4369 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 4370 desc->length); 4371 desc->proto_codeset = SVPD_ID_CODESET_UTF8; 4372 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | 4373 SVPD_ID_TYPE_SCSI_NAME; 4374 desc->length = idlen2; 4375 strlcpy(desc->identifier, scsiname, idlen2); 4376 } 4377 if (eui != NULL) { 4378 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 4379 desc->length); 4380 desc->proto_codeset = SVPD_ID_CODESET_BINARY; 4381 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | 4382 SVPD_ID_TYPE_EUI64; 4383 desc->length = hex2bin(eui, desc->identifier, 16); 4384 desc->length = desc->length > 12 ? 16 : 4385 (desc->length > 8 ? 12 : 8); 4386 len -= 16 - desc->length; 4387 } 4388 if (naa != NULL) { 4389 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 4390 desc->length); 4391 desc->proto_codeset = SVPD_ID_CODESET_BINARY; 4392 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | 4393 SVPD_ID_TYPE_NAA; 4394 desc->length = hex2bin(naa, desc->identifier, 16); 4395 desc->length = desc->length > 8 ? 16 : 8; 4396 len -= 16 - desc->length; 4397 } 4398 lun->lun_devid->len = len; 4399 4400 mtx_lock(&ctl_softc->ctl_lock); 4401 /* 4402 * See if the caller requested a particular LUN number. If so, see 4403 * if it is available. Otherwise, allocate the first available LUN. 4404 */ 4405 if (be_lun->flags & CTL_LUN_FLAG_ID_REQ) { 4406 if ((be_lun->req_lun_id > (CTL_MAX_LUNS - 1)) 4407 || (ctl_is_set(ctl_softc->ctl_lun_mask, be_lun->req_lun_id))) { 4408 mtx_unlock(&ctl_softc->ctl_lock); 4409 if (be_lun->req_lun_id > (CTL_MAX_LUNS - 1)) { 4410 printf("ctl: requested LUN ID %d is higher " 4411 "than CTL_MAX_LUNS - 1 (%d)\n", 4412 be_lun->req_lun_id, CTL_MAX_LUNS - 1); 4413 } else { 4414 /* 4415 * XXX KDM return an error, or just assign 4416 * another LUN ID in this case?? 4417 */ 4418 printf("ctl: requested LUN ID %d is already " 4419 "in use\n", be_lun->req_lun_id); 4420 } 4421 if (lun->flags & CTL_LUN_MALLOCED) 4422 free(lun, M_CTL); 4423 be_lun->lun_config_status(be_lun->be_lun, 4424 CTL_LUN_CONFIG_FAILURE); 4425 return (ENOSPC); 4426 } 4427 lun_number = be_lun->req_lun_id; 4428 } else { 4429 lun_number = ctl_ffz(ctl_softc->ctl_lun_mask, 0, CTL_MAX_LUNS); 4430 if (lun_number == -1) { 4431 mtx_unlock(&ctl_softc->ctl_lock); 4432 printf("ctl: can't allocate LUN, out of LUNs\n"); 4433 if (lun->flags & CTL_LUN_MALLOCED) 4434 free(lun, M_CTL); 4435 be_lun->lun_config_status(be_lun->be_lun, 4436 CTL_LUN_CONFIG_FAILURE); 4437 return (ENOSPC); 4438 } 4439 } 4440 ctl_set_mask(ctl_softc->ctl_lun_mask, lun_number); 4441 4442 mtx_init(&lun->lun_lock, "CTL LUN", NULL, MTX_DEF); 4443 lun->lun = lun_number; 4444 lun->be_lun = be_lun; 4445 /* 4446 * The processor LUN is always enabled. Disk LUNs come on line 4447 * disabled, and must be enabled by the backend. 4448 */ 4449 lun->flags |= CTL_LUN_DISABLED; 4450 lun->backend = be_lun->be; 4451 be_lun->ctl_lun = lun; 4452 be_lun->lun_id = lun_number; 4453 atomic_add_int(&be_lun->be->num_luns, 1); 4454 if (be_lun->flags & CTL_LUN_FLAG_OFFLINE) 4455 lun->flags |= CTL_LUN_OFFLINE; 4456 4457 if (be_lun->flags & CTL_LUN_FLAG_POWERED_OFF) 4458 lun->flags |= CTL_LUN_STOPPED; 4459 4460 if (be_lun->flags & CTL_LUN_FLAG_INOPERABLE) 4461 lun->flags |= CTL_LUN_INOPERABLE; 4462 4463 if (be_lun->flags & CTL_LUN_FLAG_PRIMARY) 4464 lun->flags |= CTL_LUN_PRIMARY_SC; 4465 4466 value = ctl_get_opt(&be_lun->options, "removable"); 4467 if (value != NULL) { 4468 if (strcmp(value, "on") == 0) 4469 lun->flags |= CTL_LUN_REMOVABLE; 4470 } else if (be_lun->lun_type == T_CDROM) 4471 lun->flags |= CTL_LUN_REMOVABLE; 4472 4473 lun->ctl_softc = ctl_softc; 4474#ifdef CTL_TIME_IO 4475 lun->last_busy = getsbinuptime(); 4476#endif 4477 TAILQ_INIT(&lun->ooa_queue); 4478 TAILQ_INIT(&lun->blocked_queue); 4479 STAILQ_INIT(&lun->error_list); 4480 ctl_tpc_lun_init(lun); 4481 4482 /* 4483 * Initialize the mode and log page index. 4484 */ 4485 ctl_init_page_index(lun); 4486 ctl_init_log_page_index(lun); 4487 4488 /* 4489 * Now, before we insert this lun on the lun list, set the lun 4490 * inventory changed UA for all other luns. 4491 */ 4492 STAILQ_FOREACH(nlun, &ctl_softc->lun_list, links) { 4493 mtx_lock(&nlun->lun_lock); 4494 ctl_est_ua_all(nlun, -1, CTL_UA_LUN_CHANGE); 4495 mtx_unlock(&nlun->lun_lock); 4496 } 4497 4498 STAILQ_INSERT_TAIL(&ctl_softc->lun_list, lun, links); 4499 4500 ctl_softc->ctl_luns[lun_number] = lun; 4501 4502 ctl_softc->num_luns++; 4503 4504 /* Setup statistics gathering */ 4505 lun->stats.device_type = be_lun->lun_type; 4506 lun->stats.lun_number = lun_number; 4507 lun->stats.blocksize = be_lun->blocksize; 4508 if (be_lun->blocksize == 0) 4509 lun->stats.flags = CTL_LUN_STATS_NO_BLOCKSIZE; 4510 for (i = 0;i < CTL_MAX_PORTS;i++) 4511 lun->stats.ports[i].targ_port = i; 4512 4513 mtx_unlock(&ctl_softc->ctl_lock); 4514 4515 lun->be_lun->lun_config_status(lun->be_lun->be_lun, CTL_LUN_CONFIG_OK); 4516 return (0); 4517} 4518 4519/* 4520 * Delete a LUN. 4521 * Assumptions: 4522 * - LUN has already been marked invalid and any pending I/O has been taken 4523 * care of. 4524 */ 4525static int 4526ctl_free_lun(struct ctl_lun *lun) 4527{ 4528 struct ctl_softc *softc; 4529 struct ctl_lun *nlun; 4530 int i; 4531 4532 softc = lun->ctl_softc; 4533 4534 mtx_assert(&softc->ctl_lock, MA_OWNED); 4535 4536 STAILQ_REMOVE(&softc->lun_list, lun, ctl_lun, links); 4537 4538 ctl_clear_mask(softc->ctl_lun_mask, lun->lun); 4539 4540 softc->ctl_luns[lun->lun] = NULL; 4541 4542 if (!TAILQ_EMPTY(&lun->ooa_queue)) 4543 panic("Freeing a LUN %p with outstanding I/O!!\n", lun); 4544 4545 softc->num_luns--; 4546 4547 /* 4548 * Tell the backend to free resources, if this LUN has a backend. 4549 */ 4550 atomic_subtract_int(&lun->be_lun->be->num_luns, 1); 4551 lun->be_lun->lun_shutdown(lun->be_lun->be_lun); 4552 4553 ctl_tpc_lun_shutdown(lun); 4554 mtx_destroy(&lun->lun_lock); 4555 free(lun->lun_devid, M_CTL); 4556 for (i = 0; i < CTL_MAX_PORTS; i++) 4557 free(lun->pending_ua[i], M_CTL); 4558 for (i = 0; i < CTL_MAX_PORTS; i++) 4559 free(lun->pr_keys[i], M_CTL); 4560 free(lun->write_buffer, M_CTL); 4561 if (lun->flags & CTL_LUN_MALLOCED) 4562 free(lun, M_CTL); 4563 4564 STAILQ_FOREACH(nlun, &softc->lun_list, links) { 4565 mtx_lock(&nlun->lun_lock); 4566 ctl_est_ua_all(nlun, -1, CTL_UA_LUN_CHANGE); 4567 mtx_unlock(&nlun->lun_lock); 4568 } 4569 4570 return (0); 4571} 4572 4573static void 4574ctl_create_lun(struct ctl_be_lun *be_lun) 4575{ 4576 4577 /* 4578 * ctl_alloc_lun() should handle all potential failure cases. 4579 */ 4580 ctl_alloc_lun(control_softc, NULL, be_lun); 4581} 4582 4583int 4584ctl_add_lun(struct ctl_be_lun *be_lun) 4585{ 4586 struct ctl_softc *softc = control_softc; 4587 4588 mtx_lock(&softc->ctl_lock); 4589 STAILQ_INSERT_TAIL(&softc->pending_lun_queue, be_lun, links); 4590 mtx_unlock(&softc->ctl_lock); 4591 wakeup(&softc->pending_lun_queue); 4592 4593 return (0); 4594} 4595 4596int 4597ctl_enable_lun(struct ctl_be_lun *be_lun) 4598{ 4599 struct ctl_softc *softc; 4600 struct ctl_port *port, *nport; 4601 struct ctl_lun *lun; 4602 int retval; 4603 4604 lun = (struct ctl_lun *)be_lun->ctl_lun; 4605 softc = lun->ctl_softc; 4606 4607 mtx_lock(&softc->ctl_lock); 4608 mtx_lock(&lun->lun_lock); 4609 if ((lun->flags & CTL_LUN_DISABLED) == 0) { 4610 /* 4611 * eh? Why did we get called if the LUN is already 4612 * enabled? 4613 */ 4614 mtx_unlock(&lun->lun_lock); 4615 mtx_unlock(&softc->ctl_lock); 4616 return (0); 4617 } 4618 lun->flags &= ~CTL_LUN_DISABLED; 4619 mtx_unlock(&lun->lun_lock); 4620 4621 for (port = STAILQ_FIRST(&softc->port_list); port != NULL; port = nport) { 4622 nport = STAILQ_NEXT(port, links); 4623 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0 || 4624 port->lun_map != NULL || port->lun_enable == NULL) 4625 continue; 4626 4627 /* 4628 * Drop the lock while we call the FETD's enable routine. 4629 * This can lead to a callback into CTL (at least in the 4630 * case of the internal initiator frontend. 4631 */ 4632 mtx_unlock(&softc->ctl_lock); 4633 retval = port->lun_enable(port->targ_lun_arg, lun->lun); 4634 mtx_lock(&softc->ctl_lock); 4635 if (retval != 0) { 4636 printf("%s: FETD %s port %d returned error " 4637 "%d for lun_enable on lun %jd\n", 4638 __func__, port->port_name, port->targ_port, 4639 retval, (intmax_t)lun->lun); 4640 } 4641 } 4642 4643 mtx_unlock(&softc->ctl_lock); 4644 ctl_isc_announce_lun(lun); 4645 4646 return (0); 4647} 4648 4649int 4650ctl_disable_lun(struct ctl_be_lun *be_lun) 4651{ 4652 struct ctl_softc *softc; 4653 struct ctl_port *port; 4654 struct ctl_lun *lun; 4655 int retval; 4656 4657 lun = (struct ctl_lun *)be_lun->ctl_lun; 4658 softc = lun->ctl_softc; 4659 4660 mtx_lock(&softc->ctl_lock); 4661 mtx_lock(&lun->lun_lock); 4662 if (lun->flags & CTL_LUN_DISABLED) { 4663 mtx_unlock(&lun->lun_lock); 4664 mtx_unlock(&softc->ctl_lock); 4665 return (0); 4666 } 4667 lun->flags |= CTL_LUN_DISABLED; 4668 mtx_unlock(&lun->lun_lock); 4669 4670 STAILQ_FOREACH(port, &softc->port_list, links) { 4671 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0 || 4672 port->lun_map != NULL || port->lun_disable == NULL) 4673 continue; 4674 4675 /* 4676 * Drop the lock before we call the frontend's disable 4677 * routine, to avoid lock order reversals. 4678 * 4679 * XXX KDM what happens if the frontend list changes while 4680 * we're traversing it? It's unlikely, but should be handled. 4681 */ 4682 mtx_unlock(&softc->ctl_lock); 4683 retval = port->lun_disable(port->targ_lun_arg, lun->lun); 4684 mtx_lock(&softc->ctl_lock); 4685 if (retval != 0) { 4686 printf("%s: FETD %s port %d returned error " 4687 "%d for lun_disable on lun %jd\n", 4688 __func__, port->port_name, port->targ_port, 4689 retval, (intmax_t)lun->lun); 4690 } 4691 } 4692 4693 mtx_unlock(&softc->ctl_lock); 4694 ctl_isc_announce_lun(lun); 4695 4696 return (0); 4697} 4698 4699int 4700ctl_start_lun(struct ctl_be_lun *be_lun) 4701{ 4702 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 4703 4704 mtx_lock(&lun->lun_lock); 4705 lun->flags &= ~CTL_LUN_STOPPED; 4706 mtx_unlock(&lun->lun_lock); 4707 return (0); 4708} 4709 4710int 4711ctl_stop_lun(struct ctl_be_lun *be_lun) 4712{ 4713 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 4714 4715 mtx_lock(&lun->lun_lock); 4716 lun->flags |= CTL_LUN_STOPPED; 4717 mtx_unlock(&lun->lun_lock); 4718 return (0); 4719} 4720 4721int 4722ctl_lun_offline(struct ctl_be_lun *be_lun) 4723{ 4724 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 4725 4726 mtx_lock(&lun->lun_lock); 4727 lun->flags |= CTL_LUN_OFFLINE; 4728 mtx_unlock(&lun->lun_lock); 4729 return (0); 4730} 4731 4732int 4733ctl_lun_online(struct ctl_be_lun *be_lun) 4734{ 4735 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 4736 4737 mtx_lock(&lun->lun_lock); 4738 lun->flags &= ~CTL_LUN_OFFLINE; 4739 mtx_unlock(&lun->lun_lock); 4740 return (0); 4741} 4742 4743int 4744ctl_lun_primary(struct ctl_be_lun *be_lun) 4745{ 4746 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 4747 4748 mtx_lock(&lun->lun_lock); 4749 lun->flags |= CTL_LUN_PRIMARY_SC; 4750 ctl_est_ua_all(lun, -1, CTL_UA_ASYM_ACC_CHANGE); 4751 mtx_unlock(&lun->lun_lock); 4752 ctl_isc_announce_lun(lun); 4753 return (0); 4754} 4755 4756int 4757ctl_lun_secondary(struct ctl_be_lun *be_lun) 4758{ 4759 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 4760 4761 mtx_lock(&lun->lun_lock); 4762 lun->flags &= ~CTL_LUN_PRIMARY_SC; 4763 ctl_est_ua_all(lun, -1, CTL_UA_ASYM_ACC_CHANGE); 4764 mtx_unlock(&lun->lun_lock); 4765 ctl_isc_announce_lun(lun); 4766 return (0); 4767} 4768 4769int 4770ctl_invalidate_lun(struct ctl_be_lun *be_lun) 4771{ 4772 struct ctl_softc *softc; 4773 struct ctl_lun *lun; 4774 4775 lun = (struct ctl_lun *)be_lun->ctl_lun; 4776 softc = lun->ctl_softc; 4777 4778 mtx_lock(&lun->lun_lock); 4779 4780 /* 4781 * The LUN needs to be disabled before it can be marked invalid. 4782 */ 4783 if ((lun->flags & CTL_LUN_DISABLED) == 0) { 4784 mtx_unlock(&lun->lun_lock); 4785 return (-1); 4786 } 4787 /* 4788 * Mark the LUN invalid. 4789 */ 4790 lun->flags |= CTL_LUN_INVALID; 4791 4792 /* 4793 * If there is nothing in the OOA queue, go ahead and free the LUN. 4794 * If we have something in the OOA queue, we'll free it when the 4795 * last I/O completes. 4796 */ 4797 if (TAILQ_EMPTY(&lun->ooa_queue)) { 4798 mtx_unlock(&lun->lun_lock); 4799 mtx_lock(&softc->ctl_lock); 4800 ctl_free_lun(lun); 4801 mtx_unlock(&softc->ctl_lock); 4802 } else 4803 mtx_unlock(&lun->lun_lock); 4804 4805 return (0); 4806} 4807 4808int 4809ctl_lun_inoperable(struct ctl_be_lun *be_lun) 4810{ 4811 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 4812 4813 mtx_lock(&lun->lun_lock); 4814 lun->flags |= CTL_LUN_INOPERABLE; 4815 mtx_unlock(&lun->lun_lock); 4816 return (0); 4817} 4818 4819int 4820ctl_lun_operable(struct ctl_be_lun *be_lun) 4821{ 4822 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 4823 4824 mtx_lock(&lun->lun_lock); 4825 lun->flags &= ~CTL_LUN_INOPERABLE; 4826 mtx_unlock(&lun->lun_lock); 4827 return (0); 4828} 4829 4830void 4831ctl_lun_capacity_changed(struct ctl_be_lun *be_lun) 4832{ 4833 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 4834 union ctl_ha_msg msg; 4835 4836 mtx_lock(&lun->lun_lock); 4837 ctl_est_ua_all(lun, -1, CTL_UA_CAPACITY_CHANGED); 4838 mtx_unlock(&lun->lun_lock); 4839 if (lun->ctl_softc->ha_mode == CTL_HA_MODE_XFER) { 4840 /* Send msg to other side. */ 4841 bzero(&msg.ua, sizeof(msg.ua)); 4842 msg.hdr.msg_type = CTL_MSG_UA; 4843 msg.hdr.nexus.initid = -1; 4844 msg.hdr.nexus.targ_port = -1; 4845 msg.hdr.nexus.targ_lun = lun->lun; 4846 msg.hdr.nexus.targ_mapped_lun = lun->lun; 4847 msg.ua.ua_all = 1; 4848 msg.ua.ua_set = 1; 4849 msg.ua.ua_type = CTL_UA_CAPACITY_CHANGED; 4850 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, sizeof(msg.ua), 4851 M_WAITOK); 4852 } 4853} 4854 4855/* 4856 * Backend "memory move is complete" callback for requests that never 4857 * make it down to say RAIDCore's configuration code. 4858 */ 4859int 4860ctl_config_move_done(union ctl_io *io) 4861{ 4862 int retval; 4863 4864 CTL_DEBUG_PRINT(("ctl_config_move_done\n")); 4865 KASSERT(io->io_hdr.io_type == CTL_IO_SCSI, 4866 ("Config I/O type isn't CTL_IO_SCSI (%d)!", io->io_hdr.io_type)); 4867 4868 if ((io->io_hdr.port_status != 0) && 4869 ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE || 4870 (io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS)) { 4871 /* 4872 * For hardware error sense keys, the sense key 4873 * specific value is defined to be a retry count, 4874 * but we use it to pass back an internal FETD 4875 * error code. XXX KDM Hopefully the FETD is only 4876 * using 16 bits for an error code, since that's 4877 * all the space we have in the sks field. 4878 */ 4879 ctl_set_internal_failure(&io->scsiio, 4880 /*sks_valid*/ 1, 4881 /*retry_count*/ 4882 io->io_hdr.port_status); 4883 } 4884 4885 if (ctl_debug & CTL_DEBUG_CDB_DATA) 4886 ctl_data_print(io); 4887 if (((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_IN) || 4888 ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE && 4889 (io->io_hdr.status & CTL_STATUS_MASK) != CTL_SUCCESS) || 4890 ((io->io_hdr.flags & CTL_FLAG_ABORT) != 0)) { 4891 /* 4892 * XXX KDM just assuming a single pointer here, and not a 4893 * S/G list. If we start using S/G lists for config data, 4894 * we'll need to know how to clean them up here as well. 4895 */ 4896 if (io->io_hdr.flags & CTL_FLAG_ALLOCATED) 4897 free(io->scsiio.kern_data_ptr, M_CTL); 4898 ctl_done(io); 4899 retval = CTL_RETVAL_COMPLETE; 4900 } else { 4901 /* 4902 * XXX KDM now we need to continue data movement. Some 4903 * options: 4904 * - call ctl_scsiio() again? We don't do this for data 4905 * writes, because for those at least we know ahead of 4906 * time where the write will go and how long it is. For 4907 * config writes, though, that information is largely 4908 * contained within the write itself, thus we need to 4909 * parse out the data again. 4910 * 4911 * - Call some other function once the data is in? 4912 */ 4913 4914 /* 4915 * XXX KDM call ctl_scsiio() again for now, and check flag 4916 * bits to see whether we're allocated or not. 4917 */ 4918 retval = ctl_scsiio(&io->scsiio); 4919 } 4920 return (retval); 4921} 4922 4923/* 4924 * This gets called by a backend driver when it is done with a 4925 * data_submit method. 4926 */ 4927void 4928ctl_data_submit_done(union ctl_io *io) 4929{ 4930 /* 4931 * If the IO_CONT flag is set, we need to call the supplied 4932 * function to continue processing the I/O, instead of completing 4933 * the I/O just yet. 4934 * 4935 * If there is an error, though, we don't want to keep processing. 4936 * Instead, just send status back to the initiator. 4937 */ 4938 if ((io->io_hdr.flags & CTL_FLAG_IO_CONT) && 4939 (io->io_hdr.flags & CTL_FLAG_ABORT) == 0 && 4940 ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE || 4941 (io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS)) { 4942 io->scsiio.io_cont(io); 4943 return; 4944 } 4945 ctl_done(io); 4946} 4947 4948/* 4949 * This gets called by a backend driver when it is done with a 4950 * configuration write. 4951 */ 4952void 4953ctl_config_write_done(union ctl_io *io) 4954{ 4955 uint8_t *buf; 4956 4957 /* 4958 * If the IO_CONT flag is set, we need to call the supplied 4959 * function to continue processing the I/O, instead of completing 4960 * the I/O just yet. 4961 * 4962 * If there is an error, though, we don't want to keep processing. 4963 * Instead, just send status back to the initiator. 4964 */ 4965 if ((io->io_hdr.flags & CTL_FLAG_IO_CONT) && 4966 (io->io_hdr.flags & CTL_FLAG_ABORT) == 0 && 4967 ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE || 4968 (io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS)) { 4969 io->scsiio.io_cont(io); 4970 return; 4971 } 4972 /* 4973 * Since a configuration write can be done for commands that actually 4974 * have data allocated, like write buffer, and commands that have 4975 * no data, like start/stop unit, we need to check here. 4976 */ 4977 if (io->io_hdr.flags & CTL_FLAG_ALLOCATED) 4978 buf = io->scsiio.kern_data_ptr; 4979 else 4980 buf = NULL; 4981 ctl_done(io); 4982 if (buf) 4983 free(buf, M_CTL); 4984} 4985 4986void 4987ctl_config_read_done(union ctl_io *io) 4988{ 4989 uint8_t *buf; 4990 4991 /* 4992 * If there is some error -- we are done, skip data transfer. 4993 */ 4994 if ((io->io_hdr.flags & CTL_FLAG_ABORT) != 0 || 4995 ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE && 4996 (io->io_hdr.status & CTL_STATUS_MASK) != CTL_SUCCESS)) { 4997 if (io->io_hdr.flags & CTL_FLAG_ALLOCATED) 4998 buf = io->scsiio.kern_data_ptr; 4999 else 5000 buf = NULL; 5001 ctl_done(io); 5002 if (buf) 5003 free(buf, M_CTL); 5004 return; 5005 } 5006 5007 /* 5008 * If the IO_CONT flag is set, we need to call the supplied 5009 * function to continue processing the I/O, instead of completing 5010 * the I/O just yet. 5011 */ 5012 if (io->io_hdr.flags & CTL_FLAG_IO_CONT) { 5013 io->scsiio.io_cont(io); 5014 return; 5015 } 5016 5017 ctl_datamove(io); 5018} 5019 5020/* 5021 * SCSI release command. 5022 */ 5023int 5024ctl_scsi_release(struct ctl_scsiio *ctsio) 5025{ 5026 struct ctl_lun *lun; 5027 uint32_t residx; 5028 5029 CTL_DEBUG_PRINT(("ctl_scsi_release\n")); 5030 5031 residx = ctl_get_initindex(&ctsio->io_hdr.nexus); 5032 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5033 5034 /* 5035 * XXX KDM right now, we only support LUN reservation. We don't 5036 * support 3rd party reservations, or extent reservations, which 5037 * might actually need the parameter list. If we've gotten this 5038 * far, we've got a LUN reservation. Anything else got kicked out 5039 * above. So, according to SPC, ignore the length. 5040 */ 5041 5042 mtx_lock(&lun->lun_lock); 5043 5044 /* 5045 * According to SPC, it is not an error for an intiator to attempt 5046 * to release a reservation on a LUN that isn't reserved, or that 5047 * is reserved by another initiator. The reservation can only be 5048 * released, though, by the initiator who made it or by one of 5049 * several reset type events. 5050 */ 5051 if ((lun->flags & CTL_LUN_RESERVED) && (lun->res_idx == residx)) 5052 lun->flags &= ~CTL_LUN_RESERVED; 5053 5054 mtx_unlock(&lun->lun_lock); 5055 5056 ctl_set_success(ctsio); 5057 ctl_done((union ctl_io *)ctsio); 5058 return (CTL_RETVAL_COMPLETE); 5059} 5060 5061int 5062ctl_scsi_reserve(struct ctl_scsiio *ctsio) 5063{ 5064 struct ctl_lun *lun; 5065 uint32_t residx; 5066 5067 CTL_DEBUG_PRINT(("ctl_reserve\n")); 5068 5069 residx = ctl_get_initindex(&ctsio->io_hdr.nexus); 5070 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5071 5072 /* 5073 * XXX KDM right now, we only support LUN reservation. We don't 5074 * support 3rd party reservations, or extent reservations, which 5075 * might actually need the parameter list. If we've gotten this 5076 * far, we've got a LUN reservation. Anything else got kicked out 5077 * above. So, according to SPC, ignore the length. 5078 */ 5079 5080 mtx_lock(&lun->lun_lock); 5081 if ((lun->flags & CTL_LUN_RESERVED) && (lun->res_idx != residx)) { 5082 ctl_set_reservation_conflict(ctsio); 5083 goto bailout; 5084 } 5085 lun->flags |= CTL_LUN_RESERVED; 5086 lun->res_idx = residx; 5087 ctl_set_success(ctsio); 5088 5089bailout: 5090 mtx_unlock(&lun->lun_lock); 5091 ctl_done((union ctl_io *)ctsio); 5092 return (CTL_RETVAL_COMPLETE); 5093} 5094 5095int 5096ctl_start_stop(struct ctl_scsiio *ctsio) 5097{ 5098 struct scsi_start_stop_unit *cdb; 5099 struct ctl_lun *lun; 5100 int retval; 5101 5102 CTL_DEBUG_PRINT(("ctl_start_stop\n")); 5103 5104 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5105 cdb = (struct scsi_start_stop_unit *)ctsio->cdb; 5106 5107 /* 5108 * XXX KDM 5109 * We don't support the immediate bit on a stop unit. In order to 5110 * do that, we would need to code up a way to know that a stop is 5111 * pending, and hold off any new commands until it completes, one 5112 * way or another. Then we could accept or reject those commands 5113 * depending on its status. We would almost need to do the reverse 5114 * of what we do below for an immediate start -- return the copy of 5115 * the ctl_io to the FETD with status to send to the host (and to 5116 * free the copy!) and then free the original I/O once the stop 5117 * actually completes. That way, the OOA queue mechanism can work 5118 * to block commands that shouldn't proceed. Another alternative 5119 * would be to put the copy in the queue in place of the original, 5120 * and return the original back to the caller. That could be 5121 * slightly safer.. 5122 */ 5123 if ((cdb->byte2 & SSS_IMMED) 5124 && ((cdb->how & SSS_START) == 0)) { 5125 ctl_set_invalid_field(ctsio, 5126 /*sks_valid*/ 1, 5127 /*command*/ 1, 5128 /*field*/ 1, 5129 /*bit_valid*/ 1, 5130 /*bit*/ 0); 5131 ctl_done((union ctl_io *)ctsio); 5132 return (CTL_RETVAL_COMPLETE); 5133 } 5134 5135 if ((lun->flags & CTL_LUN_PR_RESERVED) 5136 && ((cdb->how & SSS_START)==0)) { 5137 uint32_t residx; 5138 5139 residx = ctl_get_initindex(&ctsio->io_hdr.nexus); 5140 if (ctl_get_prkey(lun, residx) == 0 5141 || (lun->pr_res_idx!=residx && lun->res_type < 4)) { 5142 5143 ctl_set_reservation_conflict(ctsio); 5144 ctl_done((union ctl_io *)ctsio); 5145 return (CTL_RETVAL_COMPLETE); 5146 } 5147 } 5148 5149 if ((cdb->how & SSS_LOEJ) && 5150 (lun->flags & CTL_LUN_REMOVABLE) == 0) { 5151 ctl_set_invalid_field(ctsio, 5152 /*sks_valid*/ 1, 5153 /*command*/ 1, 5154 /*field*/ 4, 5155 /*bit_valid*/ 1, 5156 /*bit*/ 1); 5157 ctl_done((union ctl_io *)ctsio); 5158 return (CTL_RETVAL_COMPLETE); 5159 } 5160 5161 /* 5162 * In the non-immediate case, we send the request to 5163 * the backend and return status to the user when 5164 * it is done. 5165 * 5166 * In the immediate case, we allocate a new ctl_io 5167 * to hold a copy of the request, and send that to 5168 * the backend. We then set good status on the 5169 * user's request and return it immediately. 5170 */ 5171 if (cdb->byte2 & SSS_IMMED) { 5172 union ctl_io *new_io; 5173 5174 new_io = ctl_alloc_io(ctsio->io_hdr.pool); 5175 ctl_copy_io((union ctl_io *)ctsio, new_io); 5176 retval = lun->backend->config_write(new_io); 5177 ctl_set_success(ctsio); 5178 ctl_done((union ctl_io *)ctsio); 5179 } else { 5180 retval = lun->backend->config_write( 5181 (union ctl_io *)ctsio); 5182 } 5183 return (retval); 5184} 5185 5186int 5187ctl_prevent_allow(struct ctl_scsiio *ctsio) 5188{ 5189 struct ctl_lun *lun; 5190 int retval; 5191 5192 CTL_DEBUG_PRINT(("ctl_prevent_allow\n")); 5193 5194 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5195 5196 if ((lun->flags & CTL_LUN_REMOVABLE) == 0) { 5197 ctl_set_invalid_opcode(ctsio); 5198 ctl_done((union ctl_io *)ctsio); 5199 return (CTL_RETVAL_COMPLETE); 5200 } 5201 5202 retval = lun->backend->config_write((union ctl_io *)ctsio); 5203 return (retval); 5204} 5205 5206/* 5207 * We support the SYNCHRONIZE CACHE command (10 and 16 byte versions), but 5208 * we don't really do anything with the LBA and length fields if the user 5209 * passes them in. Instead we'll just flush out the cache for the entire 5210 * LUN. 5211 */ 5212int 5213ctl_sync_cache(struct ctl_scsiio *ctsio) 5214{ 5215 struct ctl_lun *lun; 5216 struct ctl_softc *softc; 5217 struct ctl_lba_len_flags *lbalen; 5218 uint64_t starting_lba; 5219 uint32_t block_count; 5220 int retval; 5221 uint8_t byte2; 5222 5223 CTL_DEBUG_PRINT(("ctl_sync_cache\n")); 5224 5225 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5226 softc = lun->ctl_softc; 5227 retval = 0; 5228 5229 switch (ctsio->cdb[0]) { 5230 case SYNCHRONIZE_CACHE: { 5231 struct scsi_sync_cache *cdb; 5232 cdb = (struct scsi_sync_cache *)ctsio->cdb; 5233 5234 starting_lba = scsi_4btoul(cdb->begin_lba); 5235 block_count = scsi_2btoul(cdb->lb_count); 5236 byte2 = cdb->byte2; 5237 break; 5238 } 5239 case SYNCHRONIZE_CACHE_16: { 5240 struct scsi_sync_cache_16 *cdb; 5241 cdb = (struct scsi_sync_cache_16 *)ctsio->cdb; 5242 5243 starting_lba = scsi_8btou64(cdb->begin_lba); 5244 block_count = scsi_4btoul(cdb->lb_count); 5245 byte2 = cdb->byte2; 5246 break; 5247 } 5248 default: 5249 ctl_set_invalid_opcode(ctsio); 5250 ctl_done((union ctl_io *)ctsio); 5251 goto bailout; 5252 break; /* NOTREACHED */ 5253 } 5254 5255 /* 5256 * We check the LBA and length, but don't do anything with them. 5257 * A SYNCHRONIZE CACHE will cause the entire cache for this lun to 5258 * get flushed. This check will just help satisfy anyone who wants 5259 * to see an error for an out of range LBA. 5260 */ 5261 if ((starting_lba + block_count) > (lun->be_lun->maxlba + 1)) { 5262 ctl_set_lba_out_of_range(ctsio); 5263 ctl_done((union ctl_io *)ctsio); 5264 goto bailout; 5265 } 5266 5267 lbalen = (struct ctl_lba_len_flags *)&ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 5268 lbalen->lba = starting_lba; 5269 lbalen->len = block_count; 5270 lbalen->flags = byte2; 5271 retval = lun->backend->config_write((union ctl_io *)ctsio); 5272 5273bailout: 5274 return (retval); 5275} 5276 5277int 5278ctl_format(struct ctl_scsiio *ctsio) 5279{ 5280 struct scsi_format *cdb; 5281 struct ctl_lun *lun; 5282 int length, defect_list_len; 5283 5284 CTL_DEBUG_PRINT(("ctl_format\n")); 5285 5286 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5287 5288 cdb = (struct scsi_format *)ctsio->cdb; 5289 5290 length = 0; 5291 if (cdb->byte2 & SF_FMTDATA) { 5292 if (cdb->byte2 & SF_LONGLIST) 5293 length = sizeof(struct scsi_format_header_long); 5294 else 5295 length = sizeof(struct scsi_format_header_short); 5296 } 5297 5298 if (((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) 5299 && (length > 0)) { 5300 ctsio->kern_data_ptr = malloc(length, M_CTL, M_WAITOK); 5301 ctsio->kern_data_len = length; 5302 ctsio->kern_total_len = length; 5303 ctsio->kern_data_resid = 0; 5304 ctsio->kern_rel_offset = 0; 5305 ctsio->kern_sg_entries = 0; 5306 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5307 ctsio->be_move_done = ctl_config_move_done; 5308 ctl_datamove((union ctl_io *)ctsio); 5309 5310 return (CTL_RETVAL_COMPLETE); 5311 } 5312 5313 defect_list_len = 0; 5314 5315 if (cdb->byte2 & SF_FMTDATA) { 5316 if (cdb->byte2 & SF_LONGLIST) { 5317 struct scsi_format_header_long *header; 5318 5319 header = (struct scsi_format_header_long *) 5320 ctsio->kern_data_ptr; 5321 5322 defect_list_len = scsi_4btoul(header->defect_list_len); 5323 if (defect_list_len != 0) { 5324 ctl_set_invalid_field(ctsio, 5325 /*sks_valid*/ 1, 5326 /*command*/ 0, 5327 /*field*/ 2, 5328 /*bit_valid*/ 0, 5329 /*bit*/ 0); 5330 goto bailout; 5331 } 5332 } else { 5333 struct scsi_format_header_short *header; 5334 5335 header = (struct scsi_format_header_short *) 5336 ctsio->kern_data_ptr; 5337 5338 defect_list_len = scsi_2btoul(header->defect_list_len); 5339 if (defect_list_len != 0) { 5340 ctl_set_invalid_field(ctsio, 5341 /*sks_valid*/ 1, 5342 /*command*/ 0, 5343 /*field*/ 2, 5344 /*bit_valid*/ 0, 5345 /*bit*/ 0); 5346 goto bailout; 5347 } 5348 } 5349 } 5350 5351 /* 5352 * The format command will clear out the "Medium format corrupted" 5353 * status if set by the configuration code. That status is really 5354 * just a way to notify the host that we have lost the media, and 5355 * get them to issue a command that will basically make them think 5356 * they're blowing away the media. 5357 */ 5358 mtx_lock(&lun->lun_lock); 5359 lun->flags &= ~CTL_LUN_INOPERABLE; 5360 mtx_unlock(&lun->lun_lock); 5361 5362 ctl_set_success(ctsio); 5363bailout: 5364 5365 if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) { 5366 free(ctsio->kern_data_ptr, M_CTL); 5367 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED; 5368 } 5369 5370 ctl_done((union ctl_io *)ctsio); 5371 return (CTL_RETVAL_COMPLETE); 5372} 5373 5374int 5375ctl_read_buffer(struct ctl_scsiio *ctsio) 5376{ 5377 struct ctl_lun *lun; 5378 uint64_t buffer_offset; 5379 uint32_t len; 5380 uint8_t byte2; 5381 static uint8_t descr[4]; 5382 static uint8_t echo_descr[4] = { 0 }; 5383 5384 CTL_DEBUG_PRINT(("ctl_read_buffer\n")); 5385 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5386 switch (ctsio->cdb[0]) { 5387 case READ_BUFFER: { 5388 struct scsi_read_buffer *cdb; 5389 5390 cdb = (struct scsi_read_buffer *)ctsio->cdb; 5391 buffer_offset = scsi_3btoul(cdb->offset); 5392 len = scsi_3btoul(cdb->length); 5393 byte2 = cdb->byte2; 5394 break; 5395 } 5396 case READ_BUFFER_16: { 5397 struct scsi_read_buffer_16 *cdb; 5398 5399 cdb = (struct scsi_read_buffer_16 *)ctsio->cdb; 5400 buffer_offset = scsi_8btou64(cdb->offset); 5401 len = scsi_4btoul(cdb->length); 5402 byte2 = cdb->byte2; 5403 break; 5404 } 5405 default: /* This shouldn't happen. */ 5406 ctl_set_invalid_opcode(ctsio); 5407 ctl_done((union ctl_io *)ctsio); 5408 return (CTL_RETVAL_COMPLETE); 5409 } 5410 5411 if ((byte2 & RWB_MODE) != RWB_MODE_DATA && 5412 (byte2 & RWB_MODE) != RWB_MODE_ECHO_DESCR && 5413 (byte2 & RWB_MODE) != RWB_MODE_DESCR) { 5414 ctl_set_invalid_field(ctsio, 5415 /*sks_valid*/ 1, 5416 /*command*/ 1, 5417 /*field*/ 1, 5418 /*bit_valid*/ 1, 5419 /*bit*/ 4); 5420 ctl_done((union ctl_io *)ctsio); 5421 return (CTL_RETVAL_COMPLETE); 5422 } 5423 5424 if (buffer_offset > CTL_WRITE_BUFFER_SIZE || 5425 buffer_offset + len > CTL_WRITE_BUFFER_SIZE) { 5426 ctl_set_invalid_field(ctsio, 5427 /*sks_valid*/ 1, 5428 /*command*/ 1, 5429 /*field*/ 6, 5430 /*bit_valid*/ 0, 5431 /*bit*/ 0); 5432 ctl_done((union ctl_io *)ctsio); 5433 return (CTL_RETVAL_COMPLETE); 5434 } 5435 5436 if ((byte2 & RWB_MODE) == RWB_MODE_DESCR) { 5437 descr[0] = 0; 5438 scsi_ulto3b(CTL_WRITE_BUFFER_SIZE, &descr[1]); 5439 ctsio->kern_data_ptr = descr; 5440 len = min(len, sizeof(descr)); 5441 } else if ((byte2 & RWB_MODE) == RWB_MODE_ECHO_DESCR) { 5442 ctsio->kern_data_ptr = echo_descr; 5443 len = min(len, sizeof(echo_descr)); 5444 } else { 5445 if (lun->write_buffer == NULL) { 5446 lun->write_buffer = malloc(CTL_WRITE_BUFFER_SIZE, 5447 M_CTL, M_WAITOK); 5448 } 5449 ctsio->kern_data_ptr = lun->write_buffer + buffer_offset; 5450 } 5451 ctsio->kern_data_len = len; 5452 ctsio->kern_total_len = len; 5453 ctsio->kern_data_resid = 0; 5454 ctsio->kern_rel_offset = 0; 5455 ctsio->kern_sg_entries = 0; 5456 ctl_set_success(ctsio); 5457 ctsio->be_move_done = ctl_config_move_done; 5458 ctl_datamove((union ctl_io *)ctsio); 5459 return (CTL_RETVAL_COMPLETE); 5460} 5461 5462int 5463ctl_write_buffer(struct ctl_scsiio *ctsio) 5464{ 5465 struct scsi_write_buffer *cdb; 5466 struct ctl_lun *lun; 5467 int buffer_offset, len; 5468 5469 CTL_DEBUG_PRINT(("ctl_write_buffer\n")); 5470 5471 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5472 cdb = (struct scsi_write_buffer *)ctsio->cdb; 5473 5474 if ((cdb->byte2 & RWB_MODE) != RWB_MODE_DATA) { 5475 ctl_set_invalid_field(ctsio, 5476 /*sks_valid*/ 1, 5477 /*command*/ 1, 5478 /*field*/ 1, 5479 /*bit_valid*/ 1, 5480 /*bit*/ 4); 5481 ctl_done((union ctl_io *)ctsio); 5482 return (CTL_RETVAL_COMPLETE); 5483 } 5484 5485 len = scsi_3btoul(cdb->length); 5486 buffer_offset = scsi_3btoul(cdb->offset); 5487 5488 if (buffer_offset + len > CTL_WRITE_BUFFER_SIZE) { 5489 ctl_set_invalid_field(ctsio, 5490 /*sks_valid*/ 1, 5491 /*command*/ 1, 5492 /*field*/ 6, 5493 /*bit_valid*/ 0, 5494 /*bit*/ 0); 5495 ctl_done((union ctl_io *)ctsio); 5496 return (CTL_RETVAL_COMPLETE); 5497 } 5498 5499 /* 5500 * If we've got a kernel request that hasn't been malloced yet, 5501 * malloc it and tell the caller the data buffer is here. 5502 */ 5503 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 5504 if (lun->write_buffer == NULL) { 5505 lun->write_buffer = malloc(CTL_WRITE_BUFFER_SIZE, 5506 M_CTL, M_WAITOK); 5507 } 5508 ctsio->kern_data_ptr = lun->write_buffer + buffer_offset; 5509 ctsio->kern_data_len = len; 5510 ctsio->kern_total_len = len; 5511 ctsio->kern_data_resid = 0; 5512 ctsio->kern_rel_offset = 0; 5513 ctsio->kern_sg_entries = 0; 5514 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5515 ctsio->be_move_done = ctl_config_move_done; 5516 ctl_datamove((union ctl_io *)ctsio); 5517 5518 return (CTL_RETVAL_COMPLETE); 5519 } 5520 5521 ctl_set_success(ctsio); 5522 ctl_done((union ctl_io *)ctsio); 5523 return (CTL_RETVAL_COMPLETE); 5524} 5525 5526int 5527ctl_write_same(struct ctl_scsiio *ctsio) 5528{ 5529 struct ctl_lun *lun; 5530 struct ctl_lba_len_flags *lbalen; 5531 uint64_t lba; 5532 uint32_t num_blocks; 5533 int len, retval; 5534 uint8_t byte2; 5535 5536 CTL_DEBUG_PRINT(("ctl_write_same\n")); 5537 5538 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5539 5540 switch (ctsio->cdb[0]) { 5541 case WRITE_SAME_10: { 5542 struct scsi_write_same_10 *cdb; 5543 5544 cdb = (struct scsi_write_same_10 *)ctsio->cdb; 5545 5546 lba = scsi_4btoul(cdb->addr); 5547 num_blocks = scsi_2btoul(cdb->length); 5548 byte2 = cdb->byte2; 5549 break; 5550 } 5551 case WRITE_SAME_16: { 5552 struct scsi_write_same_16 *cdb; 5553 5554 cdb = (struct scsi_write_same_16 *)ctsio->cdb; 5555 5556 lba = scsi_8btou64(cdb->addr); 5557 num_blocks = scsi_4btoul(cdb->length); 5558 byte2 = cdb->byte2; 5559 break; 5560 } 5561 default: 5562 /* 5563 * We got a command we don't support. This shouldn't 5564 * happen, commands should be filtered out above us. 5565 */ 5566 ctl_set_invalid_opcode(ctsio); 5567 ctl_done((union ctl_io *)ctsio); 5568 5569 return (CTL_RETVAL_COMPLETE); 5570 break; /* NOTREACHED */ 5571 } 5572 5573 /* ANCHOR flag can be used only together with UNMAP */ 5574 if ((byte2 & SWS_UNMAP) == 0 && (byte2 & SWS_ANCHOR) != 0) { 5575 ctl_set_invalid_field(ctsio, /*sks_valid*/ 1, 5576 /*command*/ 1, /*field*/ 1, /*bit_valid*/ 1, /*bit*/ 0); 5577 ctl_done((union ctl_io *)ctsio); 5578 return (CTL_RETVAL_COMPLETE); 5579 } 5580 5581 /* 5582 * The first check is to make sure we're in bounds, the second 5583 * check is to catch wrap-around problems. If the lba + num blocks 5584 * is less than the lba, then we've wrapped around and the block 5585 * range is invalid anyway. 5586 */ 5587 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 5588 || ((lba + num_blocks) < lba)) { 5589 ctl_set_lba_out_of_range(ctsio); 5590 ctl_done((union ctl_io *)ctsio); 5591 return (CTL_RETVAL_COMPLETE); 5592 } 5593 5594 /* Zero number of blocks means "to the last logical block" */ 5595 if (num_blocks == 0) { 5596 if ((lun->be_lun->maxlba + 1) - lba > UINT32_MAX) { 5597 ctl_set_invalid_field(ctsio, 5598 /*sks_valid*/ 0, 5599 /*command*/ 1, 5600 /*field*/ 0, 5601 /*bit_valid*/ 0, 5602 /*bit*/ 0); 5603 ctl_done((union ctl_io *)ctsio); 5604 return (CTL_RETVAL_COMPLETE); 5605 } 5606 num_blocks = (lun->be_lun->maxlba + 1) - lba; 5607 } 5608 5609 len = lun->be_lun->blocksize; 5610 5611 /* 5612 * If we've got a kernel request that hasn't been malloced yet, 5613 * malloc it and tell the caller the data buffer is here. 5614 */ 5615 if ((byte2 & SWS_NDOB) == 0 && 5616 (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 5617 ctsio->kern_data_ptr = malloc(len, M_CTL, M_WAITOK);; 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 lbalen = (struct ctl_lba_len_flags *)&ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 5631 lbalen->lba = lba; 5632 lbalen->len = num_blocks; 5633 lbalen->flags = byte2; 5634 retval = lun->backend->config_write((union ctl_io *)ctsio); 5635 5636 return (retval); 5637} 5638 5639int 5640ctl_unmap(struct ctl_scsiio *ctsio) 5641{ 5642 struct ctl_lun *lun; 5643 struct scsi_unmap *cdb; 5644 struct ctl_ptr_len_flags *ptrlen; 5645 struct scsi_unmap_header *hdr; 5646 struct scsi_unmap_desc *buf, *end, *endnz, *range; 5647 uint64_t lba; 5648 uint32_t num_blocks; 5649 int len, retval; 5650 uint8_t byte2; 5651 5652 CTL_DEBUG_PRINT(("ctl_unmap\n")); 5653 5654 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5655 cdb = (struct scsi_unmap *)ctsio->cdb; 5656 5657 len = scsi_2btoul(cdb->length); 5658 byte2 = cdb->byte2; 5659 5660 /* 5661 * If we've got a kernel request that hasn't been malloced yet, 5662 * malloc it and tell the caller the data buffer is here. 5663 */ 5664 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 5665 ctsio->kern_data_ptr = malloc(len, M_CTL, M_WAITOK);; 5666 ctsio->kern_data_len = len; 5667 ctsio->kern_total_len = len; 5668 ctsio->kern_data_resid = 0; 5669 ctsio->kern_rel_offset = 0; 5670 ctsio->kern_sg_entries = 0; 5671 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5672 ctsio->be_move_done = ctl_config_move_done; 5673 ctl_datamove((union ctl_io *)ctsio); 5674 5675 return (CTL_RETVAL_COMPLETE); 5676 } 5677 5678 len = ctsio->kern_total_len - ctsio->kern_data_resid; 5679 hdr = (struct scsi_unmap_header *)ctsio->kern_data_ptr; 5680 if (len < sizeof (*hdr) || 5681 len < (scsi_2btoul(hdr->length) + sizeof(hdr->length)) || 5682 len < (scsi_2btoul(hdr->desc_length) + sizeof (*hdr)) || 5683 scsi_2btoul(hdr->desc_length) % sizeof(*buf) != 0) { 5684 ctl_set_invalid_field(ctsio, 5685 /*sks_valid*/ 0, 5686 /*command*/ 0, 5687 /*field*/ 0, 5688 /*bit_valid*/ 0, 5689 /*bit*/ 0); 5690 goto done; 5691 } 5692 len = scsi_2btoul(hdr->desc_length); 5693 buf = (struct scsi_unmap_desc *)(hdr + 1); 5694 end = buf + len / sizeof(*buf); 5695 5696 endnz = buf; 5697 for (range = buf; range < end; range++) { 5698 lba = scsi_8btou64(range->lba); 5699 num_blocks = scsi_4btoul(range->length); 5700 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 5701 || ((lba + num_blocks) < lba)) { 5702 ctl_set_lba_out_of_range(ctsio); 5703 ctl_done((union ctl_io *)ctsio); 5704 return (CTL_RETVAL_COMPLETE); 5705 } 5706 if (num_blocks != 0) 5707 endnz = range + 1; 5708 } 5709 5710 /* 5711 * Block backend can not handle zero last range. 5712 * Filter it out and return if there is nothing left. 5713 */ 5714 len = (uint8_t *)endnz - (uint8_t *)buf; 5715 if (len == 0) { 5716 ctl_set_success(ctsio); 5717 goto done; 5718 } 5719 5720 mtx_lock(&lun->lun_lock); 5721 ptrlen = (struct ctl_ptr_len_flags *) 5722 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 5723 ptrlen->ptr = (void *)buf; 5724 ptrlen->len = len; 5725 ptrlen->flags = byte2; 5726 ctl_check_blocked(lun); 5727 mtx_unlock(&lun->lun_lock); 5728 5729 retval = lun->backend->config_write((union ctl_io *)ctsio); 5730 return (retval); 5731 5732done: 5733 if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) { 5734 free(ctsio->kern_data_ptr, M_CTL); 5735 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED; 5736 } 5737 ctl_done((union ctl_io *)ctsio); 5738 return (CTL_RETVAL_COMPLETE); 5739} 5740 5741/* 5742 * Note that this function currently doesn't actually do anything inside 5743 * CTL to enforce things if the DQue bit is turned on. 5744 * 5745 * Also note that this function can't be used in the default case, because 5746 * the DQue bit isn't set in the changeable mask for the control mode page 5747 * anyway. This is just here as an example for how to implement a page 5748 * handler, and a placeholder in case we want to allow the user to turn 5749 * tagged queueing on and off. 5750 * 5751 * The D_SENSE bit handling is functional, however, and will turn 5752 * descriptor sense on and off for a given LUN. 5753 */ 5754int 5755ctl_control_page_handler(struct ctl_scsiio *ctsio, 5756 struct ctl_page_index *page_index, uint8_t *page_ptr) 5757{ 5758 struct scsi_control_page *current_cp, *saved_cp, *user_cp; 5759 struct ctl_lun *lun; 5760 int set_ua; 5761 uint32_t initidx; 5762 5763 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5764 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 5765 set_ua = 0; 5766 5767 user_cp = (struct scsi_control_page *)page_ptr; 5768 current_cp = (struct scsi_control_page *) 5769 (page_index->page_data + (page_index->page_len * 5770 CTL_PAGE_CURRENT)); 5771 saved_cp = (struct scsi_control_page *) 5772 (page_index->page_data + (page_index->page_len * 5773 CTL_PAGE_SAVED)); 5774 5775 mtx_lock(&lun->lun_lock); 5776 if (((current_cp->rlec & SCP_DSENSE) == 0) 5777 && ((user_cp->rlec & SCP_DSENSE) != 0)) { 5778 /* 5779 * Descriptor sense is currently turned off and the user 5780 * wants to turn it on. 5781 */ 5782 current_cp->rlec |= SCP_DSENSE; 5783 saved_cp->rlec |= SCP_DSENSE; 5784 lun->flags |= CTL_LUN_SENSE_DESC; 5785 set_ua = 1; 5786 } else if (((current_cp->rlec & SCP_DSENSE) != 0) 5787 && ((user_cp->rlec & SCP_DSENSE) == 0)) { 5788 /* 5789 * Descriptor sense is currently turned on, and the user 5790 * wants to turn it off. 5791 */ 5792 current_cp->rlec &= ~SCP_DSENSE; 5793 saved_cp->rlec &= ~SCP_DSENSE; 5794 lun->flags &= ~CTL_LUN_SENSE_DESC; 5795 set_ua = 1; 5796 } 5797 if ((current_cp->queue_flags & SCP_QUEUE_ALG_MASK) != 5798 (user_cp->queue_flags & SCP_QUEUE_ALG_MASK)) { 5799 current_cp->queue_flags &= ~SCP_QUEUE_ALG_MASK; 5800 current_cp->queue_flags |= user_cp->queue_flags & SCP_QUEUE_ALG_MASK; 5801 saved_cp->queue_flags &= ~SCP_QUEUE_ALG_MASK; 5802 saved_cp->queue_flags |= user_cp->queue_flags & SCP_QUEUE_ALG_MASK; 5803 set_ua = 1; 5804 } 5805 if ((current_cp->eca_and_aen & SCP_SWP) != 5806 (user_cp->eca_and_aen & SCP_SWP)) { 5807 current_cp->eca_and_aen &= ~SCP_SWP; 5808 current_cp->eca_and_aen |= user_cp->eca_and_aen & SCP_SWP; 5809 saved_cp->eca_and_aen &= ~SCP_SWP; 5810 saved_cp->eca_and_aen |= user_cp->eca_and_aen & SCP_SWP; 5811 set_ua = 1; 5812 } 5813 if (set_ua != 0) 5814 ctl_est_ua_all(lun, initidx, CTL_UA_MODE_CHANGE); 5815 mtx_unlock(&lun->lun_lock); 5816 if (set_ua) { 5817 ctl_isc_announce_mode(lun, 5818 ctl_get_initindex(&ctsio->io_hdr.nexus), 5819 page_index->page_code, page_index->subpage); 5820 } 5821 return (0); 5822} 5823 5824int 5825ctl_caching_sp_handler(struct ctl_scsiio *ctsio, 5826 struct ctl_page_index *page_index, uint8_t *page_ptr) 5827{ 5828 struct scsi_caching_page *current_cp, *saved_cp, *user_cp; 5829 struct ctl_lun *lun; 5830 int set_ua; 5831 uint32_t initidx; 5832 5833 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5834 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 5835 set_ua = 0; 5836 5837 user_cp = (struct scsi_caching_page *)page_ptr; 5838 current_cp = (struct scsi_caching_page *) 5839 (page_index->page_data + (page_index->page_len * 5840 CTL_PAGE_CURRENT)); 5841 saved_cp = (struct scsi_caching_page *) 5842 (page_index->page_data + (page_index->page_len * 5843 CTL_PAGE_SAVED)); 5844 5845 mtx_lock(&lun->lun_lock); 5846 if ((current_cp->flags1 & (SCP_WCE | SCP_RCD)) != 5847 (user_cp->flags1 & (SCP_WCE | SCP_RCD))) { 5848 current_cp->flags1 &= ~(SCP_WCE | SCP_RCD); 5849 current_cp->flags1 |= user_cp->flags1 & (SCP_WCE | SCP_RCD); 5850 saved_cp->flags1 &= ~(SCP_WCE | SCP_RCD); 5851 saved_cp->flags1 |= user_cp->flags1 & (SCP_WCE | SCP_RCD); 5852 set_ua = 1; 5853 } 5854 if (set_ua != 0) 5855 ctl_est_ua_all(lun, initidx, CTL_UA_MODE_CHANGE); 5856 mtx_unlock(&lun->lun_lock); 5857 if (set_ua) { 5858 ctl_isc_announce_mode(lun, 5859 ctl_get_initindex(&ctsio->io_hdr.nexus), 5860 page_index->page_code, page_index->subpage); 5861 } 5862 return (0); 5863} 5864 5865int 5866ctl_debugconf_sp_select_handler(struct ctl_scsiio *ctsio, 5867 struct ctl_page_index *page_index, 5868 uint8_t *page_ptr) 5869{ 5870 uint8_t *c; 5871 int i; 5872 5873 c = ((struct copan_debugconf_subpage *)page_ptr)->ctl_time_io_secs; 5874 ctl_time_io_secs = 5875 (c[0] << 8) | 5876 (c[1] << 0) | 5877 0; 5878 CTL_DEBUG_PRINT(("set ctl_time_io_secs to %d\n", ctl_time_io_secs)); 5879 printf("set ctl_time_io_secs to %d\n", ctl_time_io_secs); 5880 printf("page data:"); 5881 for (i=0; i<8; i++) 5882 printf(" %.2x",page_ptr[i]); 5883 printf("\n"); 5884 return (0); 5885} 5886 5887int 5888ctl_debugconf_sp_sense_handler(struct ctl_scsiio *ctsio, 5889 struct ctl_page_index *page_index, 5890 int pc) 5891{ 5892 struct copan_debugconf_subpage *page; 5893 5894 page = (struct copan_debugconf_subpage *)page_index->page_data + 5895 (page_index->page_len * pc); 5896 5897 switch (pc) { 5898 case SMS_PAGE_CTRL_CHANGEABLE >> 6: 5899 case SMS_PAGE_CTRL_DEFAULT >> 6: 5900 case SMS_PAGE_CTRL_SAVED >> 6: 5901 /* 5902 * We don't update the changable or default bits for this page. 5903 */ 5904 break; 5905 case SMS_PAGE_CTRL_CURRENT >> 6: 5906 page->ctl_time_io_secs[0] = ctl_time_io_secs >> 8; 5907 page->ctl_time_io_secs[1] = ctl_time_io_secs >> 0; 5908 break; 5909 default: 5910 break; 5911 } 5912 return (0); 5913} 5914 5915 5916static int 5917ctl_do_mode_select(union ctl_io *io) 5918{ 5919 struct scsi_mode_page_header *page_header; 5920 struct ctl_page_index *page_index; 5921 struct ctl_scsiio *ctsio; 5922 int page_len, page_len_offset, page_len_size; 5923 union ctl_modepage_info *modepage_info; 5924 struct ctl_lun *lun; 5925 int *len_left, *len_used; 5926 int retval, i; 5927 5928 ctsio = &io->scsiio; 5929 page_index = NULL; 5930 page_len = 0; 5931 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5932 5933 modepage_info = (union ctl_modepage_info *) 5934 ctsio->io_hdr.ctl_private[CTL_PRIV_MODEPAGE].bytes; 5935 len_left = &modepage_info->header.len_left; 5936 len_used = &modepage_info->header.len_used; 5937 5938do_next_page: 5939 5940 page_header = (struct scsi_mode_page_header *) 5941 (ctsio->kern_data_ptr + *len_used); 5942 5943 if (*len_left == 0) { 5944 free(ctsio->kern_data_ptr, M_CTL); 5945 ctl_set_success(ctsio); 5946 ctl_done((union ctl_io *)ctsio); 5947 return (CTL_RETVAL_COMPLETE); 5948 } else if (*len_left < sizeof(struct scsi_mode_page_header)) { 5949 5950 free(ctsio->kern_data_ptr, M_CTL); 5951 ctl_set_param_len_error(ctsio); 5952 ctl_done((union ctl_io *)ctsio); 5953 return (CTL_RETVAL_COMPLETE); 5954 5955 } else if ((page_header->page_code & SMPH_SPF) 5956 && (*len_left < sizeof(struct scsi_mode_page_header_sp))) { 5957 5958 free(ctsio->kern_data_ptr, M_CTL); 5959 ctl_set_param_len_error(ctsio); 5960 ctl_done((union ctl_io *)ctsio); 5961 return (CTL_RETVAL_COMPLETE); 5962 } 5963 5964 5965 /* 5966 * XXX KDM should we do something with the block descriptor? 5967 */ 5968 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 5969 page_index = &lun->mode_pages.index[i]; 5970 if (lun->be_lun->lun_type == T_DIRECT && 5971 (page_index->page_flags & CTL_PAGE_FLAG_DIRECT) == 0) 5972 continue; 5973 if (lun->be_lun->lun_type == T_PROCESSOR && 5974 (page_index->page_flags & CTL_PAGE_FLAG_PROC) == 0) 5975 continue; 5976 if (lun->be_lun->lun_type == T_CDROM && 5977 (page_index->page_flags & CTL_PAGE_FLAG_CDROM) == 0) 5978 continue; 5979 5980 if ((page_index->page_code & SMPH_PC_MASK) != 5981 (page_header->page_code & SMPH_PC_MASK)) 5982 continue; 5983 5984 /* 5985 * If neither page has a subpage code, then we've got a 5986 * match. 5987 */ 5988 if (((page_index->page_code & SMPH_SPF) == 0) 5989 && ((page_header->page_code & SMPH_SPF) == 0)) { 5990 page_len = page_header->page_length; 5991 break; 5992 } 5993 5994 /* 5995 * If both pages have subpages, then the subpage numbers 5996 * have to match. 5997 */ 5998 if ((page_index->page_code & SMPH_SPF) 5999 && (page_header->page_code & SMPH_SPF)) { 6000 struct scsi_mode_page_header_sp *sph; 6001 6002 sph = (struct scsi_mode_page_header_sp *)page_header; 6003 if (page_index->subpage == sph->subpage) { 6004 page_len = scsi_2btoul(sph->page_length); 6005 break; 6006 } 6007 } 6008 } 6009 6010 /* 6011 * If we couldn't find the page, or if we don't have a mode select 6012 * handler for it, send back an error to the user. 6013 */ 6014 if ((i >= CTL_NUM_MODE_PAGES) 6015 || (page_index->select_handler == NULL)) { 6016 ctl_set_invalid_field(ctsio, 6017 /*sks_valid*/ 1, 6018 /*command*/ 0, 6019 /*field*/ *len_used, 6020 /*bit_valid*/ 0, 6021 /*bit*/ 0); 6022 free(ctsio->kern_data_ptr, M_CTL); 6023 ctl_done((union ctl_io *)ctsio); 6024 return (CTL_RETVAL_COMPLETE); 6025 } 6026 6027 if (page_index->page_code & SMPH_SPF) { 6028 page_len_offset = 2; 6029 page_len_size = 2; 6030 } else { 6031 page_len_size = 1; 6032 page_len_offset = 1; 6033 } 6034 6035 /* 6036 * If the length the initiator gives us isn't the one we specify in 6037 * the mode page header, or if they didn't specify enough data in 6038 * the CDB to avoid truncating this page, kick out the request. 6039 */ 6040 if ((page_len != (page_index->page_len - page_len_offset - 6041 page_len_size)) 6042 || (*len_left < page_index->page_len)) { 6043 6044 6045 ctl_set_invalid_field(ctsio, 6046 /*sks_valid*/ 1, 6047 /*command*/ 0, 6048 /*field*/ *len_used + page_len_offset, 6049 /*bit_valid*/ 0, 6050 /*bit*/ 0); 6051 free(ctsio->kern_data_ptr, M_CTL); 6052 ctl_done((union ctl_io *)ctsio); 6053 return (CTL_RETVAL_COMPLETE); 6054 } 6055 6056 /* 6057 * Run through the mode page, checking to make sure that the bits 6058 * the user changed are actually legal for him to change. 6059 */ 6060 for (i = 0; i < page_index->page_len; i++) { 6061 uint8_t *user_byte, *change_mask, *current_byte; 6062 int bad_bit; 6063 int j; 6064 6065 user_byte = (uint8_t *)page_header + i; 6066 change_mask = page_index->page_data + 6067 (page_index->page_len * CTL_PAGE_CHANGEABLE) + i; 6068 current_byte = page_index->page_data + 6069 (page_index->page_len * CTL_PAGE_CURRENT) + i; 6070 6071 /* 6072 * Check to see whether the user set any bits in this byte 6073 * that he is not allowed to set. 6074 */ 6075 if ((*user_byte & ~(*change_mask)) == 6076 (*current_byte & ~(*change_mask))) 6077 continue; 6078 6079 /* 6080 * Go through bit by bit to determine which one is illegal. 6081 */ 6082 bad_bit = 0; 6083 for (j = 7; j >= 0; j--) { 6084 if ((((1 << i) & ~(*change_mask)) & *user_byte) != 6085 (((1 << i) & ~(*change_mask)) & *current_byte)) { 6086 bad_bit = i; 6087 break; 6088 } 6089 } 6090 ctl_set_invalid_field(ctsio, 6091 /*sks_valid*/ 1, 6092 /*command*/ 0, 6093 /*field*/ *len_used + i, 6094 /*bit_valid*/ 1, 6095 /*bit*/ bad_bit); 6096 free(ctsio->kern_data_ptr, M_CTL); 6097 ctl_done((union ctl_io *)ctsio); 6098 return (CTL_RETVAL_COMPLETE); 6099 } 6100 6101 /* 6102 * Decrement these before we call the page handler, since we may 6103 * end up getting called back one way or another before the handler 6104 * returns to this context. 6105 */ 6106 *len_left -= page_index->page_len; 6107 *len_used += page_index->page_len; 6108 6109 retval = page_index->select_handler(ctsio, page_index, 6110 (uint8_t *)page_header); 6111 6112 /* 6113 * If the page handler returns CTL_RETVAL_QUEUED, then we need to 6114 * wait until this queued command completes to finish processing 6115 * the mode page. If it returns anything other than 6116 * CTL_RETVAL_COMPLETE (e.g. CTL_RETVAL_ERROR), then it should have 6117 * already set the sense information, freed the data pointer, and 6118 * completed the io for us. 6119 */ 6120 if (retval != CTL_RETVAL_COMPLETE) 6121 goto bailout_no_done; 6122 6123 /* 6124 * If the initiator sent us more than one page, parse the next one. 6125 */ 6126 if (*len_left > 0) 6127 goto do_next_page; 6128 6129 ctl_set_success(ctsio); 6130 free(ctsio->kern_data_ptr, M_CTL); 6131 ctl_done((union ctl_io *)ctsio); 6132 6133bailout_no_done: 6134 6135 return (CTL_RETVAL_COMPLETE); 6136 6137} 6138 6139int 6140ctl_mode_select(struct ctl_scsiio *ctsio) 6141{ 6142 int param_len, pf, sp; 6143 int header_size, bd_len; 6144 union ctl_modepage_info *modepage_info; 6145 6146 switch (ctsio->cdb[0]) { 6147 case MODE_SELECT_6: { 6148 struct scsi_mode_select_6 *cdb; 6149 6150 cdb = (struct scsi_mode_select_6 *)ctsio->cdb; 6151 6152 pf = (cdb->byte2 & SMS_PF) ? 1 : 0; 6153 sp = (cdb->byte2 & SMS_SP) ? 1 : 0; 6154 param_len = cdb->length; 6155 header_size = sizeof(struct scsi_mode_header_6); 6156 break; 6157 } 6158 case MODE_SELECT_10: { 6159 struct scsi_mode_select_10 *cdb; 6160 6161 cdb = (struct scsi_mode_select_10 *)ctsio->cdb; 6162 6163 pf = (cdb->byte2 & SMS_PF) ? 1 : 0; 6164 sp = (cdb->byte2 & SMS_SP) ? 1 : 0; 6165 param_len = scsi_2btoul(cdb->length); 6166 header_size = sizeof(struct scsi_mode_header_10); 6167 break; 6168 } 6169 default: 6170 ctl_set_invalid_opcode(ctsio); 6171 ctl_done((union ctl_io *)ctsio); 6172 return (CTL_RETVAL_COMPLETE); 6173 } 6174 6175 /* 6176 * From SPC-3: 6177 * "A parameter list length of zero indicates that the Data-Out Buffer 6178 * shall be empty. This condition shall not be considered as an error." 6179 */ 6180 if (param_len == 0) { 6181 ctl_set_success(ctsio); 6182 ctl_done((union ctl_io *)ctsio); 6183 return (CTL_RETVAL_COMPLETE); 6184 } 6185 6186 /* 6187 * Since we'll hit this the first time through, prior to 6188 * allocation, we don't need to free a data buffer here. 6189 */ 6190 if (param_len < header_size) { 6191 ctl_set_param_len_error(ctsio); 6192 ctl_done((union ctl_io *)ctsio); 6193 return (CTL_RETVAL_COMPLETE); 6194 } 6195 6196 /* 6197 * Allocate the data buffer and grab the user's data. In theory, 6198 * we shouldn't have to sanity check the parameter list length here 6199 * because the maximum size is 64K. We should be able to malloc 6200 * that much without too many problems. 6201 */ 6202 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 6203 ctsio->kern_data_ptr = malloc(param_len, M_CTL, M_WAITOK); 6204 ctsio->kern_data_len = param_len; 6205 ctsio->kern_total_len = param_len; 6206 ctsio->kern_data_resid = 0; 6207 ctsio->kern_rel_offset = 0; 6208 ctsio->kern_sg_entries = 0; 6209 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6210 ctsio->be_move_done = ctl_config_move_done; 6211 ctl_datamove((union ctl_io *)ctsio); 6212 6213 return (CTL_RETVAL_COMPLETE); 6214 } 6215 6216 switch (ctsio->cdb[0]) { 6217 case MODE_SELECT_6: { 6218 struct scsi_mode_header_6 *mh6; 6219 6220 mh6 = (struct scsi_mode_header_6 *)ctsio->kern_data_ptr; 6221 bd_len = mh6->blk_desc_len; 6222 break; 6223 } 6224 case MODE_SELECT_10: { 6225 struct scsi_mode_header_10 *mh10; 6226 6227 mh10 = (struct scsi_mode_header_10 *)ctsio->kern_data_ptr; 6228 bd_len = scsi_2btoul(mh10->blk_desc_len); 6229 break; 6230 } 6231 default: 6232 panic("Invalid CDB type %#x", ctsio->cdb[0]); 6233 break; 6234 } 6235 6236 if (param_len < (header_size + bd_len)) { 6237 free(ctsio->kern_data_ptr, M_CTL); 6238 ctl_set_param_len_error(ctsio); 6239 ctl_done((union ctl_io *)ctsio); 6240 return (CTL_RETVAL_COMPLETE); 6241 } 6242 6243 /* 6244 * Set the IO_CONT flag, so that if this I/O gets passed to 6245 * ctl_config_write_done(), it'll get passed back to 6246 * ctl_do_mode_select() for further processing, or completion if 6247 * we're all done. 6248 */ 6249 ctsio->io_hdr.flags |= CTL_FLAG_IO_CONT; 6250 ctsio->io_cont = ctl_do_mode_select; 6251 6252 modepage_info = (union ctl_modepage_info *) 6253 ctsio->io_hdr.ctl_private[CTL_PRIV_MODEPAGE].bytes; 6254 memset(modepage_info, 0, sizeof(*modepage_info)); 6255 modepage_info->header.len_left = param_len - header_size - bd_len; 6256 modepage_info->header.len_used = header_size + bd_len; 6257 6258 return (ctl_do_mode_select((union ctl_io *)ctsio)); 6259} 6260 6261int 6262ctl_mode_sense(struct ctl_scsiio *ctsio) 6263{ 6264 struct ctl_lun *lun; 6265 int pc, page_code, dbd, llba, subpage; 6266 int alloc_len, page_len, header_len, total_len; 6267 struct scsi_mode_block_descr *block_desc; 6268 struct ctl_page_index *page_index; 6269 6270 dbd = 0; 6271 llba = 0; 6272 block_desc = NULL; 6273 6274 CTL_DEBUG_PRINT(("ctl_mode_sense\n")); 6275 6276 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6277 switch (ctsio->cdb[0]) { 6278 case MODE_SENSE_6: { 6279 struct scsi_mode_sense_6 *cdb; 6280 6281 cdb = (struct scsi_mode_sense_6 *)ctsio->cdb; 6282 6283 header_len = sizeof(struct scsi_mode_hdr_6); 6284 if (cdb->byte2 & SMS_DBD) 6285 dbd = 1; 6286 else 6287 header_len += sizeof(struct scsi_mode_block_descr); 6288 6289 pc = (cdb->page & SMS_PAGE_CTRL_MASK) >> 6; 6290 page_code = cdb->page & SMS_PAGE_CODE; 6291 subpage = cdb->subpage; 6292 alloc_len = cdb->length; 6293 break; 6294 } 6295 case MODE_SENSE_10: { 6296 struct scsi_mode_sense_10 *cdb; 6297 6298 cdb = (struct scsi_mode_sense_10 *)ctsio->cdb; 6299 6300 header_len = sizeof(struct scsi_mode_hdr_10); 6301 6302 if (cdb->byte2 & SMS_DBD) 6303 dbd = 1; 6304 else 6305 header_len += sizeof(struct scsi_mode_block_descr); 6306 if (cdb->byte2 & SMS10_LLBAA) 6307 llba = 1; 6308 pc = (cdb->page & SMS_PAGE_CTRL_MASK) >> 6; 6309 page_code = cdb->page & SMS_PAGE_CODE; 6310 subpage = cdb->subpage; 6311 alloc_len = scsi_2btoul(cdb->length); 6312 break; 6313 } 6314 default: 6315 ctl_set_invalid_opcode(ctsio); 6316 ctl_done((union ctl_io *)ctsio); 6317 return (CTL_RETVAL_COMPLETE); 6318 break; /* NOTREACHED */ 6319 } 6320 6321 /* 6322 * We have to make a first pass through to calculate the size of 6323 * the pages that match the user's query. Then we allocate enough 6324 * memory to hold it, and actually copy the data into the buffer. 6325 */ 6326 switch (page_code) { 6327 case SMS_ALL_PAGES_PAGE: { 6328 int i; 6329 6330 page_len = 0; 6331 6332 /* 6333 * At the moment, values other than 0 and 0xff here are 6334 * reserved according to SPC-3. 6335 */ 6336 if ((subpage != SMS_SUBPAGE_PAGE_0) 6337 && (subpage != SMS_SUBPAGE_ALL)) { 6338 ctl_set_invalid_field(ctsio, 6339 /*sks_valid*/ 1, 6340 /*command*/ 1, 6341 /*field*/ 3, 6342 /*bit_valid*/ 0, 6343 /*bit*/ 0); 6344 ctl_done((union ctl_io *)ctsio); 6345 return (CTL_RETVAL_COMPLETE); 6346 } 6347 6348 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6349 page_index = &lun->mode_pages.index[i]; 6350 6351 /* Make sure the page is supported for this dev type */ 6352 if (lun->be_lun->lun_type == T_DIRECT && 6353 (page_index->page_flags & CTL_PAGE_FLAG_DIRECT) == 0) 6354 continue; 6355 if (lun->be_lun->lun_type == T_PROCESSOR && 6356 (page_index->page_flags & CTL_PAGE_FLAG_PROC) == 0) 6357 continue; 6358 if (lun->be_lun->lun_type == T_CDROM && 6359 (page_index->page_flags & CTL_PAGE_FLAG_CDROM) == 0) 6360 continue; 6361 6362 /* 6363 * We don't use this subpage if the user didn't 6364 * request all subpages. 6365 */ 6366 if ((page_index->subpage != 0) 6367 && (subpage == SMS_SUBPAGE_PAGE_0)) 6368 continue; 6369 6370#if 0 6371 printf("found page %#x len %d\n", 6372 page_index->page_code & SMPH_PC_MASK, 6373 page_index->page_len); 6374#endif 6375 page_len += page_index->page_len; 6376 } 6377 break; 6378 } 6379 default: { 6380 int i; 6381 6382 page_len = 0; 6383 6384 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6385 page_index = &lun->mode_pages.index[i]; 6386 6387 /* Make sure the page is supported for this dev type */ 6388 if (lun->be_lun->lun_type == T_DIRECT && 6389 (page_index->page_flags & CTL_PAGE_FLAG_DIRECT) == 0) 6390 continue; 6391 if (lun->be_lun->lun_type == T_PROCESSOR && 6392 (page_index->page_flags & CTL_PAGE_FLAG_PROC) == 0) 6393 continue; 6394 if (lun->be_lun->lun_type == T_CDROM && 6395 (page_index->page_flags & CTL_PAGE_FLAG_CDROM) == 0) 6396 continue; 6397 6398 /* Look for the right page code */ 6399 if ((page_index->page_code & SMPH_PC_MASK) != page_code) 6400 continue; 6401 6402 /* Look for the right subpage or the subpage wildcard*/ 6403 if ((page_index->subpage != subpage) 6404 && (subpage != SMS_SUBPAGE_ALL)) 6405 continue; 6406 6407#if 0 6408 printf("found page %#x len %d\n", 6409 page_index->page_code & SMPH_PC_MASK, 6410 page_index->page_len); 6411#endif 6412 6413 page_len += page_index->page_len; 6414 } 6415 6416 if (page_len == 0) { 6417 ctl_set_invalid_field(ctsio, 6418 /*sks_valid*/ 1, 6419 /*command*/ 1, 6420 /*field*/ 2, 6421 /*bit_valid*/ 1, 6422 /*bit*/ 5); 6423 ctl_done((union ctl_io *)ctsio); 6424 return (CTL_RETVAL_COMPLETE); 6425 } 6426 break; 6427 } 6428 } 6429 6430 total_len = header_len + page_len; 6431#if 0 6432 printf("header_len = %d, page_len = %d, total_len = %d\n", 6433 header_len, page_len, total_len); 6434#endif 6435 6436 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 6437 ctsio->kern_sg_entries = 0; 6438 ctsio->kern_data_resid = 0; 6439 ctsio->kern_rel_offset = 0; 6440 if (total_len < alloc_len) { 6441 ctsio->residual = alloc_len - total_len; 6442 ctsio->kern_data_len = total_len; 6443 ctsio->kern_total_len = total_len; 6444 } else { 6445 ctsio->residual = 0; 6446 ctsio->kern_data_len = alloc_len; 6447 ctsio->kern_total_len = alloc_len; 6448 } 6449 6450 switch (ctsio->cdb[0]) { 6451 case MODE_SENSE_6: { 6452 struct scsi_mode_hdr_6 *header; 6453 6454 header = (struct scsi_mode_hdr_6 *)ctsio->kern_data_ptr; 6455 6456 header->datalen = MIN(total_len - 1, 254); 6457 if (lun->be_lun->lun_type == T_DIRECT) { 6458 header->dev_specific = 0x10; /* DPOFUA */ 6459 if ((lun->be_lun->flags & CTL_LUN_FLAG_READONLY) || 6460 (lun->mode_pages.control_page[CTL_PAGE_CURRENT] 6461 .eca_and_aen & SCP_SWP) != 0) 6462 header->dev_specific |= 0x80; /* WP */ 6463 } 6464 if (dbd) 6465 header->block_descr_len = 0; 6466 else 6467 header->block_descr_len = 6468 sizeof(struct scsi_mode_block_descr); 6469 block_desc = (struct scsi_mode_block_descr *)&header[1]; 6470 break; 6471 } 6472 case MODE_SENSE_10: { 6473 struct scsi_mode_hdr_10 *header; 6474 int datalen; 6475 6476 header = (struct scsi_mode_hdr_10 *)ctsio->kern_data_ptr; 6477 6478 datalen = MIN(total_len - 2, 65533); 6479 scsi_ulto2b(datalen, header->datalen); 6480 if (lun->be_lun->lun_type == T_DIRECT) { 6481 header->dev_specific = 0x10; /* DPOFUA */ 6482 if ((lun->be_lun->flags & CTL_LUN_FLAG_READONLY) || 6483 (lun->mode_pages.control_page[CTL_PAGE_CURRENT] 6484 .eca_and_aen & SCP_SWP) != 0) 6485 header->dev_specific |= 0x80; /* WP */ 6486 } 6487 if (dbd) 6488 scsi_ulto2b(0, header->block_descr_len); 6489 else 6490 scsi_ulto2b(sizeof(struct scsi_mode_block_descr), 6491 header->block_descr_len); 6492 block_desc = (struct scsi_mode_block_descr *)&header[1]; 6493 break; 6494 } 6495 default: 6496 panic("invalid CDB type %#x", ctsio->cdb[0]); 6497 break; /* NOTREACHED */ 6498 } 6499 6500 /* 6501 * If we've got a disk, use its blocksize in the block 6502 * descriptor. Otherwise, just set it to 0. 6503 */ 6504 if (dbd == 0) { 6505 if (lun->be_lun->lun_type == T_DIRECT) 6506 scsi_ulto3b(lun->be_lun->blocksize, 6507 block_desc->block_len); 6508 else 6509 scsi_ulto3b(0, block_desc->block_len); 6510 } 6511 6512 switch (page_code) { 6513 case SMS_ALL_PAGES_PAGE: { 6514 int i, data_used; 6515 6516 data_used = header_len; 6517 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6518 struct ctl_page_index *page_index; 6519 6520 page_index = &lun->mode_pages.index[i]; 6521 if (lun->be_lun->lun_type == T_DIRECT && 6522 (page_index->page_flags & CTL_PAGE_FLAG_DIRECT) == 0) 6523 continue; 6524 if (lun->be_lun->lun_type == T_PROCESSOR && 6525 (page_index->page_flags & CTL_PAGE_FLAG_PROC) == 0) 6526 continue; 6527 if (lun->be_lun->lun_type == T_CDROM && 6528 (page_index->page_flags & CTL_PAGE_FLAG_CDROM) == 0) 6529 continue; 6530 6531 /* 6532 * We don't use this subpage if the user didn't 6533 * request all subpages. We already checked (above) 6534 * to make sure the user only specified a subpage 6535 * of 0 or 0xff in the SMS_ALL_PAGES_PAGE case. 6536 */ 6537 if ((page_index->subpage != 0) 6538 && (subpage == SMS_SUBPAGE_PAGE_0)) 6539 continue; 6540 6541 /* 6542 * Call the handler, if it exists, to update the 6543 * page to the latest values. 6544 */ 6545 if (page_index->sense_handler != NULL) 6546 page_index->sense_handler(ctsio, page_index,pc); 6547 6548 memcpy(ctsio->kern_data_ptr + data_used, 6549 page_index->page_data + 6550 (page_index->page_len * pc), 6551 page_index->page_len); 6552 data_used += page_index->page_len; 6553 } 6554 break; 6555 } 6556 default: { 6557 int i, data_used; 6558 6559 data_used = header_len; 6560 6561 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6562 struct ctl_page_index *page_index; 6563 6564 page_index = &lun->mode_pages.index[i]; 6565 6566 /* Look for the right page code */ 6567 if ((page_index->page_code & SMPH_PC_MASK) != page_code) 6568 continue; 6569 6570 /* Look for the right subpage or the subpage wildcard*/ 6571 if ((page_index->subpage != subpage) 6572 && (subpage != SMS_SUBPAGE_ALL)) 6573 continue; 6574 6575 /* Make sure the page is supported for this dev type */ 6576 if (lun->be_lun->lun_type == T_DIRECT && 6577 (page_index->page_flags & CTL_PAGE_FLAG_DIRECT) == 0) 6578 continue; 6579 if (lun->be_lun->lun_type == T_PROCESSOR && 6580 (page_index->page_flags & CTL_PAGE_FLAG_PROC) == 0) 6581 continue; 6582 if (lun->be_lun->lun_type == T_CDROM && 6583 (page_index->page_flags & CTL_PAGE_FLAG_CDROM) == 0) 6584 continue; 6585 6586 /* 6587 * Call the handler, if it exists, to update the 6588 * page to the latest values. 6589 */ 6590 if (page_index->sense_handler != NULL) 6591 page_index->sense_handler(ctsio, page_index,pc); 6592 6593 memcpy(ctsio->kern_data_ptr + data_used, 6594 page_index->page_data + 6595 (page_index->page_len * pc), 6596 page_index->page_len); 6597 data_used += page_index->page_len; 6598 } 6599 break; 6600 } 6601 } 6602 6603 ctl_set_success(ctsio); 6604 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6605 ctsio->be_move_done = ctl_config_move_done; 6606 ctl_datamove((union ctl_io *)ctsio); 6607 return (CTL_RETVAL_COMPLETE); 6608} 6609 6610int 6611ctl_lbp_log_sense_handler(struct ctl_scsiio *ctsio, 6612 struct ctl_page_index *page_index, 6613 int pc) 6614{ 6615 struct ctl_lun *lun; 6616 struct scsi_log_param_header *phdr; 6617 uint8_t *data; 6618 uint64_t val; 6619 6620 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6621 data = page_index->page_data; 6622 6623 if (lun->backend->lun_attr != NULL && 6624 (val = lun->backend->lun_attr(lun->be_lun->be_lun, "blocksavail")) 6625 != UINT64_MAX) { 6626 phdr = (struct scsi_log_param_header *)data; 6627 scsi_ulto2b(0x0001, phdr->param_code); 6628 phdr->param_control = SLP_LBIN | SLP_LP; 6629 phdr->param_len = 8; 6630 data = (uint8_t *)(phdr + 1); 6631 scsi_ulto4b(val >> CTL_LBP_EXPONENT, data); 6632 data[4] = 0x02; /* per-pool */ 6633 data += phdr->param_len; 6634 } 6635 6636 if (lun->backend->lun_attr != NULL && 6637 (val = lun->backend->lun_attr(lun->be_lun->be_lun, "blocksused")) 6638 != UINT64_MAX) { 6639 phdr = (struct scsi_log_param_header *)data; 6640 scsi_ulto2b(0x0002, phdr->param_code); 6641 phdr->param_control = SLP_LBIN | SLP_LP; 6642 phdr->param_len = 8; 6643 data = (uint8_t *)(phdr + 1); 6644 scsi_ulto4b(val >> CTL_LBP_EXPONENT, data); 6645 data[4] = 0x01; /* per-LUN */ 6646 data += phdr->param_len; 6647 } 6648 6649 if (lun->backend->lun_attr != NULL && 6650 (val = lun->backend->lun_attr(lun->be_lun->be_lun, "poolblocksavail")) 6651 != UINT64_MAX) { 6652 phdr = (struct scsi_log_param_header *)data; 6653 scsi_ulto2b(0x00f1, phdr->param_code); 6654 phdr->param_control = SLP_LBIN | SLP_LP; 6655 phdr->param_len = 8; 6656 data = (uint8_t *)(phdr + 1); 6657 scsi_ulto4b(val >> CTL_LBP_EXPONENT, data); 6658 data[4] = 0x02; /* per-pool */ 6659 data += phdr->param_len; 6660 } 6661 6662 if (lun->backend->lun_attr != NULL && 6663 (val = lun->backend->lun_attr(lun->be_lun->be_lun, "poolblocksused")) 6664 != UINT64_MAX) { 6665 phdr = (struct scsi_log_param_header *)data; 6666 scsi_ulto2b(0x00f2, phdr->param_code); 6667 phdr->param_control = SLP_LBIN | SLP_LP; 6668 phdr->param_len = 8; 6669 data = (uint8_t *)(phdr + 1); 6670 scsi_ulto4b(val >> CTL_LBP_EXPONENT, data); 6671 data[4] = 0x02; /* per-pool */ 6672 data += phdr->param_len; 6673 } 6674 6675 page_index->page_len = data - page_index->page_data; 6676 return (0); 6677} 6678 6679int 6680ctl_sap_log_sense_handler(struct ctl_scsiio *ctsio, 6681 struct ctl_page_index *page_index, 6682 int pc) 6683{ 6684 struct ctl_lun *lun; 6685 struct stat_page *data; 6686 uint64_t rn, wn, rb, wb; 6687 struct bintime rt, wt; 6688 int i; 6689 6690 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6691 data = (struct stat_page *)page_index->page_data; 6692 6693 scsi_ulto2b(SLP_SAP, data->sap.hdr.param_code); 6694 data->sap.hdr.param_control = SLP_LBIN; 6695 data->sap.hdr.param_len = sizeof(struct scsi_log_stat_and_perf) - 6696 sizeof(struct scsi_log_param_header); 6697 rn = wn = rb = wb = 0; 6698 bintime_clear(&rt); 6699 bintime_clear(&wt); 6700 for (i = 0; i < CTL_MAX_PORTS; i++) { 6701 rn += lun->stats.ports[i].operations[CTL_STATS_READ]; 6702 wn += lun->stats.ports[i].operations[CTL_STATS_WRITE]; 6703 rb += lun->stats.ports[i].bytes[CTL_STATS_READ]; 6704 wb += lun->stats.ports[i].bytes[CTL_STATS_WRITE]; 6705 bintime_add(&rt, &lun->stats.ports[i].time[CTL_STATS_READ]); 6706 bintime_add(&wt, &lun->stats.ports[i].time[CTL_STATS_WRITE]); 6707 } 6708 scsi_u64to8b(rn, data->sap.read_num); 6709 scsi_u64to8b(wn, data->sap.write_num); 6710 if (lun->stats.blocksize > 0) { 6711 scsi_u64to8b(wb / lun->stats.blocksize, 6712 data->sap.recvieved_lba); 6713 scsi_u64to8b(rb / lun->stats.blocksize, 6714 data->sap.transmitted_lba); 6715 } 6716 scsi_u64to8b((uint64_t)rt.sec * 1000 + rt.frac / (UINT64_MAX / 1000), 6717 data->sap.read_int); 6718 scsi_u64to8b((uint64_t)wt.sec * 1000 + wt.frac / (UINT64_MAX / 1000), 6719 data->sap.write_int); 6720 scsi_u64to8b(0, data->sap.weighted_num); 6721 scsi_u64to8b(0, data->sap.weighted_int); 6722 scsi_ulto2b(SLP_IT, data->it.hdr.param_code); 6723 data->it.hdr.param_control = SLP_LBIN; 6724 data->it.hdr.param_len = sizeof(struct scsi_log_idle_time) - 6725 sizeof(struct scsi_log_param_header); 6726#ifdef CTL_TIME_IO 6727 scsi_u64to8b(lun->idle_time / SBT_1MS, data->it.idle_int); 6728#endif 6729 scsi_ulto2b(SLP_TI, data->ti.hdr.param_code); 6730 data->it.hdr.param_control = SLP_LBIN; 6731 data->ti.hdr.param_len = sizeof(struct scsi_log_time_interval) - 6732 sizeof(struct scsi_log_param_header); 6733 scsi_ulto4b(3, data->ti.exponent); 6734 scsi_ulto4b(1, data->ti.integer); 6735 6736 page_index->page_len = sizeof(*data); 6737 return (0); 6738} 6739 6740int 6741ctl_log_sense(struct ctl_scsiio *ctsio) 6742{ 6743 struct ctl_lun *lun; 6744 int i, pc, page_code, subpage; 6745 int alloc_len, total_len; 6746 struct ctl_page_index *page_index; 6747 struct scsi_log_sense *cdb; 6748 struct scsi_log_header *header; 6749 6750 CTL_DEBUG_PRINT(("ctl_log_sense\n")); 6751 6752 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6753 cdb = (struct scsi_log_sense *)ctsio->cdb; 6754 pc = (cdb->page & SLS_PAGE_CTRL_MASK) >> 6; 6755 page_code = cdb->page & SLS_PAGE_CODE; 6756 subpage = cdb->subpage; 6757 alloc_len = scsi_2btoul(cdb->length); 6758 6759 page_index = NULL; 6760 for (i = 0; i < CTL_NUM_LOG_PAGES; i++) { 6761 page_index = &lun->log_pages.index[i]; 6762 6763 /* Look for the right page code */ 6764 if ((page_index->page_code & SL_PAGE_CODE) != page_code) 6765 continue; 6766 6767 /* Look for the right subpage or the subpage wildcard*/ 6768 if (page_index->subpage != subpage) 6769 continue; 6770 6771 break; 6772 } 6773 if (i >= CTL_NUM_LOG_PAGES) { 6774 ctl_set_invalid_field(ctsio, 6775 /*sks_valid*/ 1, 6776 /*command*/ 1, 6777 /*field*/ 2, 6778 /*bit_valid*/ 0, 6779 /*bit*/ 0); 6780 ctl_done((union ctl_io *)ctsio); 6781 return (CTL_RETVAL_COMPLETE); 6782 } 6783 6784 total_len = sizeof(struct scsi_log_header) + page_index->page_len; 6785 6786 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 6787 ctsio->kern_sg_entries = 0; 6788 ctsio->kern_data_resid = 0; 6789 ctsio->kern_rel_offset = 0; 6790 if (total_len < alloc_len) { 6791 ctsio->residual = alloc_len - total_len; 6792 ctsio->kern_data_len = total_len; 6793 ctsio->kern_total_len = total_len; 6794 } else { 6795 ctsio->residual = 0; 6796 ctsio->kern_data_len = alloc_len; 6797 ctsio->kern_total_len = alloc_len; 6798 } 6799 6800 header = (struct scsi_log_header *)ctsio->kern_data_ptr; 6801 header->page = page_index->page_code; 6802 if (page_index->subpage) { 6803 header->page |= SL_SPF; 6804 header->subpage = page_index->subpage; 6805 } 6806 scsi_ulto2b(page_index->page_len, header->datalen); 6807 6808 /* 6809 * Call the handler, if it exists, to update the 6810 * page to the latest values. 6811 */ 6812 if (page_index->sense_handler != NULL) 6813 page_index->sense_handler(ctsio, page_index, pc); 6814 6815 memcpy(header + 1, page_index->page_data, page_index->page_len); 6816 6817 ctl_set_success(ctsio); 6818 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6819 ctsio->be_move_done = ctl_config_move_done; 6820 ctl_datamove((union ctl_io *)ctsio); 6821 return (CTL_RETVAL_COMPLETE); 6822} 6823 6824int 6825ctl_read_capacity(struct ctl_scsiio *ctsio) 6826{ 6827 struct scsi_read_capacity *cdb; 6828 struct scsi_read_capacity_data *data; 6829 struct ctl_lun *lun; 6830 uint32_t lba; 6831 6832 CTL_DEBUG_PRINT(("ctl_read_capacity\n")); 6833 6834 cdb = (struct scsi_read_capacity *)ctsio->cdb; 6835 6836 lba = scsi_4btoul(cdb->addr); 6837 if (((cdb->pmi & SRC_PMI) == 0) 6838 && (lba != 0)) { 6839 ctl_set_invalid_field(/*ctsio*/ ctsio, 6840 /*sks_valid*/ 1, 6841 /*command*/ 1, 6842 /*field*/ 2, 6843 /*bit_valid*/ 0, 6844 /*bit*/ 0); 6845 ctl_done((union ctl_io *)ctsio); 6846 return (CTL_RETVAL_COMPLETE); 6847 } 6848 6849 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6850 6851 ctsio->kern_data_ptr = malloc(sizeof(*data), M_CTL, M_WAITOK | M_ZERO); 6852 data = (struct scsi_read_capacity_data *)ctsio->kern_data_ptr; 6853 ctsio->residual = 0; 6854 ctsio->kern_data_len = sizeof(*data); 6855 ctsio->kern_total_len = sizeof(*data); 6856 ctsio->kern_data_resid = 0; 6857 ctsio->kern_rel_offset = 0; 6858 ctsio->kern_sg_entries = 0; 6859 6860 /* 6861 * If the maximum LBA is greater than 0xfffffffe, the user must 6862 * issue a SERVICE ACTION IN (16) command, with the read capacity 6863 * serivce action set. 6864 */ 6865 if (lun->be_lun->maxlba > 0xfffffffe) 6866 scsi_ulto4b(0xffffffff, data->addr); 6867 else 6868 scsi_ulto4b(lun->be_lun->maxlba, data->addr); 6869 6870 /* 6871 * XXX KDM this may not be 512 bytes... 6872 */ 6873 scsi_ulto4b(lun->be_lun->blocksize, data->length); 6874 6875 ctl_set_success(ctsio); 6876 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6877 ctsio->be_move_done = ctl_config_move_done; 6878 ctl_datamove((union ctl_io *)ctsio); 6879 return (CTL_RETVAL_COMPLETE); 6880} 6881 6882int 6883ctl_read_capacity_16(struct ctl_scsiio *ctsio) 6884{ 6885 struct scsi_read_capacity_16 *cdb; 6886 struct scsi_read_capacity_data_long *data; 6887 struct ctl_lun *lun; 6888 uint64_t lba; 6889 uint32_t alloc_len; 6890 6891 CTL_DEBUG_PRINT(("ctl_read_capacity_16\n")); 6892 6893 cdb = (struct scsi_read_capacity_16 *)ctsio->cdb; 6894 6895 alloc_len = scsi_4btoul(cdb->alloc_len); 6896 lba = scsi_8btou64(cdb->addr); 6897 6898 if ((cdb->reladr & SRC16_PMI) 6899 && (lba != 0)) { 6900 ctl_set_invalid_field(/*ctsio*/ ctsio, 6901 /*sks_valid*/ 1, 6902 /*command*/ 1, 6903 /*field*/ 2, 6904 /*bit_valid*/ 0, 6905 /*bit*/ 0); 6906 ctl_done((union ctl_io *)ctsio); 6907 return (CTL_RETVAL_COMPLETE); 6908 } 6909 6910 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6911 6912 ctsio->kern_data_ptr = malloc(sizeof(*data), M_CTL, M_WAITOK | M_ZERO); 6913 data = (struct scsi_read_capacity_data_long *)ctsio->kern_data_ptr; 6914 6915 if (sizeof(*data) < alloc_len) { 6916 ctsio->residual = alloc_len - sizeof(*data); 6917 ctsio->kern_data_len = sizeof(*data); 6918 ctsio->kern_total_len = sizeof(*data); 6919 } else { 6920 ctsio->residual = 0; 6921 ctsio->kern_data_len = alloc_len; 6922 ctsio->kern_total_len = alloc_len; 6923 } 6924 ctsio->kern_data_resid = 0; 6925 ctsio->kern_rel_offset = 0; 6926 ctsio->kern_sg_entries = 0; 6927 6928 scsi_u64to8b(lun->be_lun->maxlba, data->addr); 6929 /* XXX KDM this may not be 512 bytes... */ 6930 scsi_ulto4b(lun->be_lun->blocksize, data->length); 6931 data->prot_lbppbe = lun->be_lun->pblockexp & SRC16_LBPPBE; 6932 scsi_ulto2b(lun->be_lun->pblockoff & SRC16_LALBA_A, data->lalba_lbp); 6933 if (lun->be_lun->flags & CTL_LUN_FLAG_UNMAP) 6934 data->lalba_lbp[0] |= SRC16_LBPME | SRC16_LBPRZ; 6935 6936 ctl_set_success(ctsio); 6937 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6938 ctsio->be_move_done = ctl_config_move_done; 6939 ctl_datamove((union ctl_io *)ctsio); 6940 return (CTL_RETVAL_COMPLETE); 6941} 6942 6943int 6944ctl_get_lba_status(struct ctl_scsiio *ctsio) 6945{ 6946 struct scsi_get_lba_status *cdb; 6947 struct scsi_get_lba_status_data *data; 6948 struct ctl_lun *lun; 6949 struct ctl_lba_len_flags *lbalen; 6950 uint64_t lba; 6951 uint32_t alloc_len, total_len; 6952 int retval; 6953 6954 CTL_DEBUG_PRINT(("ctl_get_lba_status\n")); 6955 6956 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6957 cdb = (struct scsi_get_lba_status *)ctsio->cdb; 6958 lba = scsi_8btou64(cdb->addr); 6959 alloc_len = scsi_4btoul(cdb->alloc_len); 6960 6961 if (lba > lun->be_lun->maxlba) { 6962 ctl_set_lba_out_of_range(ctsio); 6963 ctl_done((union ctl_io *)ctsio); 6964 return (CTL_RETVAL_COMPLETE); 6965 } 6966 6967 total_len = sizeof(*data) + sizeof(data->descr[0]); 6968 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 6969 data = (struct scsi_get_lba_status_data *)ctsio->kern_data_ptr; 6970 6971 if (total_len < alloc_len) { 6972 ctsio->residual = alloc_len - total_len; 6973 ctsio->kern_data_len = total_len; 6974 ctsio->kern_total_len = total_len; 6975 } else { 6976 ctsio->residual = 0; 6977 ctsio->kern_data_len = alloc_len; 6978 ctsio->kern_total_len = alloc_len; 6979 } 6980 ctsio->kern_data_resid = 0; 6981 ctsio->kern_rel_offset = 0; 6982 ctsio->kern_sg_entries = 0; 6983 6984 /* Fill dummy data in case backend can't tell anything. */ 6985 scsi_ulto4b(4 + sizeof(data->descr[0]), data->length); 6986 scsi_u64to8b(lba, data->descr[0].addr); 6987 scsi_ulto4b(MIN(UINT32_MAX, lun->be_lun->maxlba + 1 - lba), 6988 data->descr[0].length); 6989 data->descr[0].status = 0; /* Mapped or unknown. */ 6990 6991 ctl_set_success(ctsio); 6992 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6993 ctsio->be_move_done = ctl_config_move_done; 6994 6995 lbalen = (struct ctl_lba_len_flags *)&ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 6996 lbalen->lba = lba; 6997 lbalen->len = total_len; 6998 lbalen->flags = 0; 6999 retval = lun->backend->config_read((union ctl_io *)ctsio); 7000 return (CTL_RETVAL_COMPLETE); 7001} 7002 7003int 7004ctl_read_defect(struct ctl_scsiio *ctsio) 7005{ 7006 struct scsi_read_defect_data_10 *ccb10; 7007 struct scsi_read_defect_data_12 *ccb12; 7008 struct scsi_read_defect_data_hdr_10 *data10; 7009 struct scsi_read_defect_data_hdr_12 *data12; 7010 uint32_t alloc_len, data_len; 7011 uint8_t format; 7012 7013 CTL_DEBUG_PRINT(("ctl_read_defect\n")); 7014 7015 if (ctsio->cdb[0] == READ_DEFECT_DATA_10) { 7016 ccb10 = (struct scsi_read_defect_data_10 *)&ctsio->cdb; 7017 format = ccb10->format; 7018 alloc_len = scsi_2btoul(ccb10->alloc_length); 7019 data_len = sizeof(*data10); 7020 } else { 7021 ccb12 = (struct scsi_read_defect_data_12 *)&ctsio->cdb; 7022 format = ccb12->format; 7023 alloc_len = scsi_4btoul(ccb12->alloc_length); 7024 data_len = sizeof(*data12); 7025 } 7026 if (alloc_len == 0) { 7027 ctl_set_success(ctsio); 7028 ctl_done((union ctl_io *)ctsio); 7029 return (CTL_RETVAL_COMPLETE); 7030 } 7031 7032 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 7033 if (data_len < alloc_len) { 7034 ctsio->residual = alloc_len - data_len; 7035 ctsio->kern_data_len = data_len; 7036 ctsio->kern_total_len = data_len; 7037 } else { 7038 ctsio->residual = 0; 7039 ctsio->kern_data_len = alloc_len; 7040 ctsio->kern_total_len = alloc_len; 7041 } 7042 ctsio->kern_data_resid = 0; 7043 ctsio->kern_rel_offset = 0; 7044 ctsio->kern_sg_entries = 0; 7045 7046 if (ctsio->cdb[0] == READ_DEFECT_DATA_10) { 7047 data10 = (struct scsi_read_defect_data_hdr_10 *) 7048 ctsio->kern_data_ptr; 7049 data10->format = format; 7050 scsi_ulto2b(0, data10->length); 7051 } else { 7052 data12 = (struct scsi_read_defect_data_hdr_12 *) 7053 ctsio->kern_data_ptr; 7054 data12->format = format; 7055 scsi_ulto2b(0, data12->generation); 7056 scsi_ulto4b(0, data12->length); 7057 } 7058 7059 ctl_set_success(ctsio); 7060 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7061 ctsio->be_move_done = ctl_config_move_done; 7062 ctl_datamove((union ctl_io *)ctsio); 7063 return (CTL_RETVAL_COMPLETE); 7064} 7065 7066int 7067ctl_report_tagret_port_groups(struct ctl_scsiio *ctsio) 7068{ 7069 struct scsi_maintenance_in *cdb; 7070 int retval; 7071 int alloc_len, ext, total_len = 0, g, pc, pg, gs, os; 7072 int num_target_port_groups, num_target_ports; 7073 struct ctl_lun *lun; 7074 struct ctl_softc *softc; 7075 struct ctl_port *port; 7076 struct scsi_target_group_data *rtg_ptr; 7077 struct scsi_target_group_data_extended *rtg_ext_ptr; 7078 struct scsi_target_port_group_descriptor *tpg_desc; 7079 7080 CTL_DEBUG_PRINT(("ctl_report_tagret_port_groups\n")); 7081 7082 cdb = (struct scsi_maintenance_in *)ctsio->cdb; 7083 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7084 softc = lun->ctl_softc; 7085 7086 retval = CTL_RETVAL_COMPLETE; 7087 7088 switch (cdb->byte2 & STG_PDF_MASK) { 7089 case STG_PDF_LENGTH: 7090 ext = 0; 7091 break; 7092 case STG_PDF_EXTENDED: 7093 ext = 1; 7094 break; 7095 default: 7096 ctl_set_invalid_field(/*ctsio*/ ctsio, 7097 /*sks_valid*/ 1, 7098 /*command*/ 1, 7099 /*field*/ 2, 7100 /*bit_valid*/ 1, 7101 /*bit*/ 5); 7102 ctl_done((union ctl_io *)ctsio); 7103 return(retval); 7104 } 7105 7106 if (softc->is_single) 7107 num_target_port_groups = 1; 7108 else 7109 num_target_port_groups = NUM_TARGET_PORT_GROUPS; 7110 num_target_ports = 0; 7111 mtx_lock(&softc->ctl_lock); 7112 STAILQ_FOREACH(port, &softc->port_list, links) { 7113 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 7114 continue; 7115 if (ctl_lun_map_to_port(port, lun->lun) >= CTL_MAX_LUNS) 7116 continue; 7117 num_target_ports++; 7118 } 7119 mtx_unlock(&softc->ctl_lock); 7120 7121 if (ext) 7122 total_len = sizeof(struct scsi_target_group_data_extended); 7123 else 7124 total_len = sizeof(struct scsi_target_group_data); 7125 total_len += sizeof(struct scsi_target_port_group_descriptor) * 7126 num_target_port_groups + 7127 sizeof(struct scsi_target_port_descriptor) * num_target_ports; 7128 7129 alloc_len = scsi_4btoul(cdb->length); 7130 7131 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7132 7133 ctsio->kern_sg_entries = 0; 7134 7135 if (total_len < alloc_len) { 7136 ctsio->residual = alloc_len - total_len; 7137 ctsio->kern_data_len = total_len; 7138 ctsio->kern_total_len = total_len; 7139 } else { 7140 ctsio->residual = 0; 7141 ctsio->kern_data_len = alloc_len; 7142 ctsio->kern_total_len = alloc_len; 7143 } 7144 ctsio->kern_data_resid = 0; 7145 ctsio->kern_rel_offset = 0; 7146 7147 if (ext) { 7148 rtg_ext_ptr = (struct scsi_target_group_data_extended *) 7149 ctsio->kern_data_ptr; 7150 scsi_ulto4b(total_len - 4, rtg_ext_ptr->length); 7151 rtg_ext_ptr->format_type = 0x10; 7152 rtg_ext_ptr->implicit_transition_time = 0; 7153 tpg_desc = &rtg_ext_ptr->groups[0]; 7154 } else { 7155 rtg_ptr = (struct scsi_target_group_data *) 7156 ctsio->kern_data_ptr; 7157 scsi_ulto4b(total_len - 4, rtg_ptr->length); 7158 tpg_desc = &rtg_ptr->groups[0]; 7159 } 7160 7161 mtx_lock(&softc->ctl_lock); 7162 pg = softc->port_min / softc->port_cnt; 7163 if (softc->ha_link == CTL_HA_LINK_OFFLINE) 7164 gs = TPG_ASYMMETRIC_ACCESS_UNAVAILABLE; 7165 else if (softc->ha_link == CTL_HA_LINK_UNKNOWN) 7166 gs = TPG_ASYMMETRIC_ACCESS_TRANSITIONING; 7167 else if (softc->ha_mode == CTL_HA_MODE_ACT_STBY) 7168 gs = TPG_ASYMMETRIC_ACCESS_STANDBY; 7169 else 7170 gs = TPG_ASYMMETRIC_ACCESS_NONOPTIMIZED; 7171 if (lun->flags & CTL_LUN_PRIMARY_SC) { 7172 os = gs; 7173 gs = TPG_ASYMMETRIC_ACCESS_OPTIMIZED; 7174 } else 7175 os = TPG_ASYMMETRIC_ACCESS_OPTIMIZED; 7176 for (g = 0; g < num_target_port_groups; g++) { 7177 tpg_desc->pref_state = (g == pg) ? gs : os; 7178 tpg_desc->support = TPG_AO_SUP | TPG_AN_SUP | TPG_S_SUP | 7179 TPG_U_SUP | TPG_T_SUP; 7180 scsi_ulto2b(g + 1, tpg_desc->target_port_group); 7181 tpg_desc->status = TPG_IMPLICIT; 7182 pc = 0; 7183 STAILQ_FOREACH(port, &softc->port_list, links) { 7184 if (port->targ_port < g * softc->port_cnt || 7185 port->targ_port >= (g + 1) * softc->port_cnt) 7186 continue; 7187 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 7188 continue; 7189 if (ctl_lun_map_to_port(port, lun->lun) >= CTL_MAX_LUNS) 7190 continue; 7191 scsi_ulto2b(port->targ_port, tpg_desc->descriptors[pc]. 7192 relative_target_port_identifier); 7193 pc++; 7194 } 7195 tpg_desc->target_port_count = pc; 7196 tpg_desc = (struct scsi_target_port_group_descriptor *) 7197 &tpg_desc->descriptors[pc]; 7198 } 7199 mtx_unlock(&softc->ctl_lock); 7200 7201 ctl_set_success(ctsio); 7202 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7203 ctsio->be_move_done = ctl_config_move_done; 7204 ctl_datamove((union ctl_io *)ctsio); 7205 return(retval); 7206} 7207 7208int 7209ctl_report_supported_opcodes(struct ctl_scsiio *ctsio) 7210{ 7211 struct ctl_lun *lun; 7212 struct scsi_report_supported_opcodes *cdb; 7213 const struct ctl_cmd_entry *entry, *sentry; 7214 struct scsi_report_supported_opcodes_all *all; 7215 struct scsi_report_supported_opcodes_descr *descr; 7216 struct scsi_report_supported_opcodes_one *one; 7217 int retval; 7218 int alloc_len, total_len; 7219 int opcode, service_action, i, j, num; 7220 7221 CTL_DEBUG_PRINT(("ctl_report_supported_opcodes\n")); 7222 7223 cdb = (struct scsi_report_supported_opcodes *)ctsio->cdb; 7224 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7225 7226 retval = CTL_RETVAL_COMPLETE; 7227 7228 opcode = cdb->requested_opcode; 7229 service_action = scsi_2btoul(cdb->requested_service_action); 7230 switch (cdb->options & RSO_OPTIONS_MASK) { 7231 case RSO_OPTIONS_ALL: 7232 num = 0; 7233 for (i = 0; i < 256; i++) { 7234 entry = &ctl_cmd_table[i]; 7235 if (entry->flags & CTL_CMD_FLAG_SA5) { 7236 for (j = 0; j < 32; j++) { 7237 sentry = &((const struct ctl_cmd_entry *) 7238 entry->execute)[j]; 7239 if (ctl_cmd_applicable( 7240 lun->be_lun->lun_type, sentry)) 7241 num++; 7242 } 7243 } else { 7244 if (ctl_cmd_applicable(lun->be_lun->lun_type, 7245 entry)) 7246 num++; 7247 } 7248 } 7249 total_len = sizeof(struct scsi_report_supported_opcodes_all) + 7250 num * sizeof(struct scsi_report_supported_opcodes_descr); 7251 break; 7252 case RSO_OPTIONS_OC: 7253 if (ctl_cmd_table[opcode].flags & CTL_CMD_FLAG_SA5) { 7254 ctl_set_invalid_field(/*ctsio*/ ctsio, 7255 /*sks_valid*/ 1, 7256 /*command*/ 1, 7257 /*field*/ 2, 7258 /*bit_valid*/ 1, 7259 /*bit*/ 2); 7260 ctl_done((union ctl_io *)ctsio); 7261 return (CTL_RETVAL_COMPLETE); 7262 } 7263 total_len = sizeof(struct scsi_report_supported_opcodes_one) + 32; 7264 break; 7265 case RSO_OPTIONS_OC_SA: 7266 if ((ctl_cmd_table[opcode].flags & CTL_CMD_FLAG_SA5) == 0 || 7267 service_action >= 32) { 7268 ctl_set_invalid_field(/*ctsio*/ ctsio, 7269 /*sks_valid*/ 1, 7270 /*command*/ 1, 7271 /*field*/ 2, 7272 /*bit_valid*/ 1, 7273 /*bit*/ 2); 7274 ctl_done((union ctl_io *)ctsio); 7275 return (CTL_RETVAL_COMPLETE); 7276 } 7277 total_len = sizeof(struct scsi_report_supported_opcodes_one) + 32; 7278 break; 7279 default: 7280 ctl_set_invalid_field(/*ctsio*/ ctsio, 7281 /*sks_valid*/ 1, 7282 /*command*/ 1, 7283 /*field*/ 2, 7284 /*bit_valid*/ 1, 7285 /*bit*/ 2); 7286 ctl_done((union ctl_io *)ctsio); 7287 return (CTL_RETVAL_COMPLETE); 7288 } 7289 7290 alloc_len = scsi_4btoul(cdb->length); 7291 7292 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7293 7294 ctsio->kern_sg_entries = 0; 7295 7296 if (total_len < alloc_len) { 7297 ctsio->residual = alloc_len - total_len; 7298 ctsio->kern_data_len = total_len; 7299 ctsio->kern_total_len = total_len; 7300 } else { 7301 ctsio->residual = 0; 7302 ctsio->kern_data_len = alloc_len; 7303 ctsio->kern_total_len = alloc_len; 7304 } 7305 ctsio->kern_data_resid = 0; 7306 ctsio->kern_rel_offset = 0; 7307 7308 switch (cdb->options & RSO_OPTIONS_MASK) { 7309 case RSO_OPTIONS_ALL: 7310 all = (struct scsi_report_supported_opcodes_all *) 7311 ctsio->kern_data_ptr; 7312 num = 0; 7313 for (i = 0; i < 256; i++) { 7314 entry = &ctl_cmd_table[i]; 7315 if (entry->flags & CTL_CMD_FLAG_SA5) { 7316 for (j = 0; j < 32; j++) { 7317 sentry = &((const struct ctl_cmd_entry *) 7318 entry->execute)[j]; 7319 if (!ctl_cmd_applicable( 7320 lun->be_lun->lun_type, sentry)) 7321 continue; 7322 descr = &all->descr[num++]; 7323 descr->opcode = i; 7324 scsi_ulto2b(j, descr->service_action); 7325 descr->flags = RSO_SERVACTV; 7326 scsi_ulto2b(sentry->length, 7327 descr->cdb_length); 7328 } 7329 } else { 7330 if (!ctl_cmd_applicable(lun->be_lun->lun_type, 7331 entry)) 7332 continue; 7333 descr = &all->descr[num++]; 7334 descr->opcode = i; 7335 scsi_ulto2b(0, descr->service_action); 7336 descr->flags = 0; 7337 scsi_ulto2b(entry->length, descr->cdb_length); 7338 } 7339 } 7340 scsi_ulto4b( 7341 num * sizeof(struct scsi_report_supported_opcodes_descr), 7342 all->length); 7343 break; 7344 case RSO_OPTIONS_OC: 7345 one = (struct scsi_report_supported_opcodes_one *) 7346 ctsio->kern_data_ptr; 7347 entry = &ctl_cmd_table[opcode]; 7348 goto fill_one; 7349 case RSO_OPTIONS_OC_SA: 7350 one = (struct scsi_report_supported_opcodes_one *) 7351 ctsio->kern_data_ptr; 7352 entry = &ctl_cmd_table[opcode]; 7353 entry = &((const struct ctl_cmd_entry *) 7354 entry->execute)[service_action]; 7355fill_one: 7356 if (ctl_cmd_applicable(lun->be_lun->lun_type, entry)) { 7357 one->support = 3; 7358 scsi_ulto2b(entry->length, one->cdb_length); 7359 one->cdb_usage[0] = opcode; 7360 memcpy(&one->cdb_usage[1], entry->usage, 7361 entry->length - 1); 7362 } else 7363 one->support = 1; 7364 break; 7365 } 7366 7367 ctl_set_success(ctsio); 7368 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7369 ctsio->be_move_done = ctl_config_move_done; 7370 ctl_datamove((union ctl_io *)ctsio); 7371 return(retval); 7372} 7373 7374int 7375ctl_report_supported_tmf(struct ctl_scsiio *ctsio) 7376{ 7377 struct scsi_report_supported_tmf *cdb; 7378 struct scsi_report_supported_tmf_data *data; 7379 int retval; 7380 int alloc_len, total_len; 7381 7382 CTL_DEBUG_PRINT(("ctl_report_supported_tmf\n")); 7383 7384 cdb = (struct scsi_report_supported_tmf *)ctsio->cdb; 7385 7386 retval = CTL_RETVAL_COMPLETE; 7387 7388 total_len = sizeof(struct scsi_report_supported_tmf_data); 7389 alloc_len = scsi_4btoul(cdb->length); 7390 7391 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7392 7393 ctsio->kern_sg_entries = 0; 7394 7395 if (total_len < alloc_len) { 7396 ctsio->residual = alloc_len - total_len; 7397 ctsio->kern_data_len = total_len; 7398 ctsio->kern_total_len = total_len; 7399 } else { 7400 ctsio->residual = 0; 7401 ctsio->kern_data_len = alloc_len; 7402 ctsio->kern_total_len = alloc_len; 7403 } 7404 ctsio->kern_data_resid = 0; 7405 ctsio->kern_rel_offset = 0; 7406 7407 data = (struct scsi_report_supported_tmf_data *)ctsio->kern_data_ptr; 7408 data->byte1 |= RST_ATS | RST_ATSS | RST_CTSS | RST_LURS | RST_QTS | 7409 RST_TRS; 7410 data->byte2 |= RST_QAES | RST_QTSS | RST_ITNRS; 7411 7412 ctl_set_success(ctsio); 7413 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7414 ctsio->be_move_done = ctl_config_move_done; 7415 ctl_datamove((union ctl_io *)ctsio); 7416 return (retval); 7417} 7418 7419int 7420ctl_report_timestamp(struct ctl_scsiio *ctsio) 7421{ 7422 struct scsi_report_timestamp *cdb; 7423 struct scsi_report_timestamp_data *data; 7424 struct timeval tv; 7425 int64_t timestamp; 7426 int retval; 7427 int alloc_len, total_len; 7428 7429 CTL_DEBUG_PRINT(("ctl_report_timestamp\n")); 7430 7431 cdb = (struct scsi_report_timestamp *)ctsio->cdb; 7432 7433 retval = CTL_RETVAL_COMPLETE; 7434 7435 total_len = sizeof(struct scsi_report_timestamp_data); 7436 alloc_len = scsi_4btoul(cdb->length); 7437 7438 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7439 7440 ctsio->kern_sg_entries = 0; 7441 7442 if (total_len < alloc_len) { 7443 ctsio->residual = alloc_len - total_len; 7444 ctsio->kern_data_len = total_len; 7445 ctsio->kern_total_len = total_len; 7446 } else { 7447 ctsio->residual = 0; 7448 ctsio->kern_data_len = alloc_len; 7449 ctsio->kern_total_len = alloc_len; 7450 } 7451 ctsio->kern_data_resid = 0; 7452 ctsio->kern_rel_offset = 0; 7453 7454 data = (struct scsi_report_timestamp_data *)ctsio->kern_data_ptr; 7455 scsi_ulto2b(sizeof(*data) - 2, data->length); 7456 data->origin = RTS_ORIG_OUTSIDE; 7457 getmicrotime(&tv); 7458 timestamp = (int64_t)tv.tv_sec * 1000 + tv.tv_usec / 1000; 7459 scsi_ulto4b(timestamp >> 16, data->timestamp); 7460 scsi_ulto2b(timestamp & 0xffff, &data->timestamp[4]); 7461 7462 ctl_set_success(ctsio); 7463 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7464 ctsio->be_move_done = ctl_config_move_done; 7465 ctl_datamove((union ctl_io *)ctsio); 7466 return (retval); 7467} 7468 7469int 7470ctl_persistent_reserve_in(struct ctl_scsiio *ctsio) 7471{ 7472 struct scsi_per_res_in *cdb; 7473 int alloc_len, total_len = 0; 7474 /* struct scsi_per_res_in_rsrv in_data; */ 7475 struct ctl_lun *lun; 7476 struct ctl_softc *softc; 7477 uint64_t key; 7478 7479 CTL_DEBUG_PRINT(("ctl_persistent_reserve_in\n")); 7480 7481 cdb = (struct scsi_per_res_in *)ctsio->cdb; 7482 7483 alloc_len = scsi_2btoul(cdb->length); 7484 7485 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7486 softc = lun->ctl_softc; 7487 7488retry: 7489 mtx_lock(&lun->lun_lock); 7490 switch (cdb->action) { 7491 case SPRI_RK: /* read keys */ 7492 total_len = sizeof(struct scsi_per_res_in_keys) + 7493 lun->pr_key_count * 7494 sizeof(struct scsi_per_res_key); 7495 break; 7496 case SPRI_RR: /* read reservation */ 7497 if (lun->flags & CTL_LUN_PR_RESERVED) 7498 total_len = sizeof(struct scsi_per_res_in_rsrv); 7499 else 7500 total_len = sizeof(struct scsi_per_res_in_header); 7501 break; 7502 case SPRI_RC: /* report capabilities */ 7503 total_len = sizeof(struct scsi_per_res_cap); 7504 break; 7505 case SPRI_RS: /* read full status */ 7506 total_len = sizeof(struct scsi_per_res_in_header) + 7507 (sizeof(struct scsi_per_res_in_full_desc) + 256) * 7508 lun->pr_key_count; 7509 break; 7510 default: 7511 panic("Invalid PR type %x", cdb->action); 7512 } 7513 mtx_unlock(&lun->lun_lock); 7514 7515 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7516 7517 if (total_len < alloc_len) { 7518 ctsio->residual = alloc_len - total_len; 7519 ctsio->kern_data_len = total_len; 7520 ctsio->kern_total_len = total_len; 7521 } else { 7522 ctsio->residual = 0; 7523 ctsio->kern_data_len = alloc_len; 7524 ctsio->kern_total_len = alloc_len; 7525 } 7526 7527 ctsio->kern_data_resid = 0; 7528 ctsio->kern_rel_offset = 0; 7529 ctsio->kern_sg_entries = 0; 7530 7531 mtx_lock(&lun->lun_lock); 7532 switch (cdb->action) { 7533 case SPRI_RK: { // read keys 7534 struct scsi_per_res_in_keys *res_keys; 7535 int i, key_count; 7536 7537 res_keys = (struct scsi_per_res_in_keys*)ctsio->kern_data_ptr; 7538 7539 /* 7540 * We had to drop the lock to allocate our buffer, which 7541 * leaves time for someone to come in with another 7542 * persistent reservation. (That is unlikely, though, 7543 * since this should be the only persistent reservation 7544 * command active right now.) 7545 */ 7546 if (total_len != (sizeof(struct scsi_per_res_in_keys) + 7547 (lun->pr_key_count * 7548 sizeof(struct scsi_per_res_key)))){ 7549 mtx_unlock(&lun->lun_lock); 7550 free(ctsio->kern_data_ptr, M_CTL); 7551 printf("%s: reservation length changed, retrying\n", 7552 __func__); 7553 goto retry; 7554 } 7555 7556 scsi_ulto4b(lun->PRGeneration, res_keys->header.generation); 7557 7558 scsi_ulto4b(sizeof(struct scsi_per_res_key) * 7559 lun->pr_key_count, res_keys->header.length); 7560 7561 for (i = 0, key_count = 0; i < CTL_MAX_INITIATORS; i++) { 7562 if ((key = ctl_get_prkey(lun, i)) == 0) 7563 continue; 7564 7565 /* 7566 * We used lun->pr_key_count to calculate the 7567 * size to allocate. If it turns out the number of 7568 * initiators with the registered flag set is 7569 * larger than that (i.e. they haven't been kept in 7570 * sync), we've got a problem. 7571 */ 7572 if (key_count >= lun->pr_key_count) { 7573 key_count++; 7574 continue; 7575 } 7576 scsi_u64to8b(key, res_keys->keys[key_count].key); 7577 key_count++; 7578 } 7579 break; 7580 } 7581 case SPRI_RR: { // read reservation 7582 struct scsi_per_res_in_rsrv *res; 7583 int tmp_len, header_only; 7584 7585 res = (struct scsi_per_res_in_rsrv *)ctsio->kern_data_ptr; 7586 7587 scsi_ulto4b(lun->PRGeneration, res->header.generation); 7588 7589 if (lun->flags & CTL_LUN_PR_RESERVED) 7590 { 7591 tmp_len = sizeof(struct scsi_per_res_in_rsrv); 7592 scsi_ulto4b(sizeof(struct scsi_per_res_in_rsrv_data), 7593 res->header.length); 7594 header_only = 0; 7595 } else { 7596 tmp_len = sizeof(struct scsi_per_res_in_header); 7597 scsi_ulto4b(0, res->header.length); 7598 header_only = 1; 7599 } 7600 7601 /* 7602 * We had to drop the lock to allocate our buffer, which 7603 * leaves time for someone to come in with another 7604 * persistent reservation. (That is unlikely, though, 7605 * since this should be the only persistent reservation 7606 * command active right now.) 7607 */ 7608 if (tmp_len != total_len) { 7609 mtx_unlock(&lun->lun_lock); 7610 free(ctsio->kern_data_ptr, M_CTL); 7611 printf("%s: reservation status changed, retrying\n", 7612 __func__); 7613 goto retry; 7614 } 7615 7616 /* 7617 * No reservation held, so we're done. 7618 */ 7619 if (header_only != 0) 7620 break; 7621 7622 /* 7623 * If the registration is an All Registrants type, the key 7624 * is 0, since it doesn't really matter. 7625 */ 7626 if (lun->pr_res_idx != CTL_PR_ALL_REGISTRANTS) { 7627 scsi_u64to8b(ctl_get_prkey(lun, lun->pr_res_idx), 7628 res->data.reservation); 7629 } 7630 res->data.scopetype = lun->res_type; 7631 break; 7632 } 7633 case SPRI_RC: //report capabilities 7634 { 7635 struct scsi_per_res_cap *res_cap; 7636 uint16_t type_mask; 7637 7638 res_cap = (struct scsi_per_res_cap *)ctsio->kern_data_ptr; 7639 scsi_ulto2b(sizeof(*res_cap), res_cap->length); 7640 res_cap->flags2 |= SPRI_TMV | SPRI_ALLOW_5; 7641 type_mask = SPRI_TM_WR_EX_AR | 7642 SPRI_TM_EX_AC_RO | 7643 SPRI_TM_WR_EX_RO | 7644 SPRI_TM_EX_AC | 7645 SPRI_TM_WR_EX | 7646 SPRI_TM_EX_AC_AR; 7647 scsi_ulto2b(type_mask, res_cap->type_mask); 7648 break; 7649 } 7650 case SPRI_RS: { // read full status 7651 struct scsi_per_res_in_full *res_status; 7652 struct scsi_per_res_in_full_desc *res_desc; 7653 struct ctl_port *port; 7654 int i, len; 7655 7656 res_status = (struct scsi_per_res_in_full*)ctsio->kern_data_ptr; 7657 7658 /* 7659 * We had to drop the lock to allocate our buffer, which 7660 * leaves time for someone to come in with another 7661 * persistent reservation. (That is unlikely, though, 7662 * since this should be the only persistent reservation 7663 * command active right now.) 7664 */ 7665 if (total_len < (sizeof(struct scsi_per_res_in_header) + 7666 (sizeof(struct scsi_per_res_in_full_desc) + 256) * 7667 lun->pr_key_count)){ 7668 mtx_unlock(&lun->lun_lock); 7669 free(ctsio->kern_data_ptr, M_CTL); 7670 printf("%s: reservation length changed, retrying\n", 7671 __func__); 7672 goto retry; 7673 } 7674 7675 scsi_ulto4b(lun->PRGeneration, res_status->header.generation); 7676 7677 res_desc = &res_status->desc[0]; 7678 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 7679 if ((key = ctl_get_prkey(lun, i)) == 0) 7680 continue; 7681 7682 scsi_u64to8b(key, res_desc->res_key.key); 7683 if ((lun->flags & CTL_LUN_PR_RESERVED) && 7684 (lun->pr_res_idx == i || 7685 lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS)) { 7686 res_desc->flags = SPRI_FULL_R_HOLDER; 7687 res_desc->scopetype = lun->res_type; 7688 } 7689 scsi_ulto2b(i / CTL_MAX_INIT_PER_PORT, 7690 res_desc->rel_trgt_port_id); 7691 len = 0; 7692 port = softc->ctl_ports[i / CTL_MAX_INIT_PER_PORT]; 7693 if (port != NULL) 7694 len = ctl_create_iid(port, 7695 i % CTL_MAX_INIT_PER_PORT, 7696 res_desc->transport_id); 7697 scsi_ulto4b(len, res_desc->additional_length); 7698 res_desc = (struct scsi_per_res_in_full_desc *) 7699 &res_desc->transport_id[len]; 7700 } 7701 scsi_ulto4b((uint8_t *)res_desc - (uint8_t *)&res_status->desc[0], 7702 res_status->header.length); 7703 break; 7704 } 7705 default: 7706 /* 7707 * This is a bug, because we just checked for this above, 7708 * and should have returned an error. 7709 */ 7710 panic("Invalid PR type %x", cdb->action); 7711 break; /* NOTREACHED */ 7712 } 7713 mtx_unlock(&lun->lun_lock); 7714 7715 ctl_set_success(ctsio); 7716 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7717 ctsio->be_move_done = ctl_config_move_done; 7718 ctl_datamove((union ctl_io *)ctsio); 7719 return (CTL_RETVAL_COMPLETE); 7720} 7721 7722/* 7723 * Returns 0 if ctl_persistent_reserve_out() should continue, non-zero if 7724 * it should return. 7725 */ 7726static int 7727ctl_pro_preempt(struct ctl_softc *softc, struct ctl_lun *lun, uint64_t res_key, 7728 uint64_t sa_res_key, uint8_t type, uint32_t residx, 7729 struct ctl_scsiio *ctsio, struct scsi_per_res_out *cdb, 7730 struct scsi_per_res_out_parms* param) 7731{ 7732 union ctl_ha_msg persis_io; 7733 int i; 7734 7735 mtx_lock(&lun->lun_lock); 7736 if (sa_res_key == 0) { 7737 if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS) { 7738 /* validate scope and type */ 7739 if ((cdb->scope_type & SPR_SCOPE_MASK) != 7740 SPR_LU_SCOPE) { 7741 mtx_unlock(&lun->lun_lock); 7742 ctl_set_invalid_field(/*ctsio*/ ctsio, 7743 /*sks_valid*/ 1, 7744 /*command*/ 1, 7745 /*field*/ 2, 7746 /*bit_valid*/ 1, 7747 /*bit*/ 4); 7748 ctl_done((union ctl_io *)ctsio); 7749 return (1); 7750 } 7751 7752 if (type>8 || type==2 || type==4 || type==0) { 7753 mtx_unlock(&lun->lun_lock); 7754 ctl_set_invalid_field(/*ctsio*/ ctsio, 7755 /*sks_valid*/ 1, 7756 /*command*/ 1, 7757 /*field*/ 2, 7758 /*bit_valid*/ 1, 7759 /*bit*/ 0); 7760 ctl_done((union ctl_io *)ctsio); 7761 return (1); 7762 } 7763 7764 /* 7765 * Unregister everybody else and build UA for 7766 * them 7767 */ 7768 for(i = 0; i < CTL_MAX_INITIATORS; i++) { 7769 if (i == residx || ctl_get_prkey(lun, i) == 0) 7770 continue; 7771 7772 ctl_clr_prkey(lun, i); 7773 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 7774 } 7775 lun->pr_key_count = 1; 7776 lun->res_type = type; 7777 if (lun->res_type != SPR_TYPE_WR_EX_AR 7778 && lun->res_type != SPR_TYPE_EX_AC_AR) 7779 lun->pr_res_idx = residx; 7780 lun->PRGeneration++; 7781 mtx_unlock(&lun->lun_lock); 7782 7783 /* send msg to other side */ 7784 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 7785 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 7786 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 7787 persis_io.pr.pr_info.residx = lun->pr_res_idx; 7788 persis_io.pr.pr_info.res_type = type; 7789 memcpy(persis_io.pr.pr_info.sa_res_key, 7790 param->serv_act_res_key, 7791 sizeof(param->serv_act_res_key)); 7792 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 7793 sizeof(persis_io.pr), M_WAITOK); 7794 } else { 7795 /* not all registrants */ 7796 mtx_unlock(&lun->lun_lock); 7797 free(ctsio->kern_data_ptr, M_CTL); 7798 ctl_set_invalid_field(ctsio, 7799 /*sks_valid*/ 1, 7800 /*command*/ 0, 7801 /*field*/ 8, 7802 /*bit_valid*/ 0, 7803 /*bit*/ 0); 7804 ctl_done((union ctl_io *)ctsio); 7805 return (1); 7806 } 7807 } else if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS 7808 || !(lun->flags & CTL_LUN_PR_RESERVED)) { 7809 int found = 0; 7810 7811 if (res_key == sa_res_key) { 7812 /* special case */ 7813 /* 7814 * The spec implies this is not good but doesn't 7815 * say what to do. There are two choices either 7816 * generate a res conflict or check condition 7817 * with illegal field in parameter data. Since 7818 * that is what is done when the sa_res_key is 7819 * zero I'll take that approach since this has 7820 * to do with the sa_res_key. 7821 */ 7822 mtx_unlock(&lun->lun_lock); 7823 free(ctsio->kern_data_ptr, M_CTL); 7824 ctl_set_invalid_field(ctsio, 7825 /*sks_valid*/ 1, 7826 /*command*/ 0, 7827 /*field*/ 8, 7828 /*bit_valid*/ 0, 7829 /*bit*/ 0); 7830 ctl_done((union ctl_io *)ctsio); 7831 return (1); 7832 } 7833 7834 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 7835 if (ctl_get_prkey(lun, i) != sa_res_key) 7836 continue; 7837 7838 found = 1; 7839 ctl_clr_prkey(lun, i); 7840 lun->pr_key_count--; 7841 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 7842 } 7843 if (!found) { 7844 mtx_unlock(&lun->lun_lock); 7845 free(ctsio->kern_data_ptr, M_CTL); 7846 ctl_set_reservation_conflict(ctsio); 7847 ctl_done((union ctl_io *)ctsio); 7848 return (CTL_RETVAL_COMPLETE); 7849 } 7850 lun->PRGeneration++; 7851 mtx_unlock(&lun->lun_lock); 7852 7853 /* send msg to other side */ 7854 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 7855 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 7856 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 7857 persis_io.pr.pr_info.residx = lun->pr_res_idx; 7858 persis_io.pr.pr_info.res_type = type; 7859 memcpy(persis_io.pr.pr_info.sa_res_key, 7860 param->serv_act_res_key, 7861 sizeof(param->serv_act_res_key)); 7862 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 7863 sizeof(persis_io.pr), M_WAITOK); 7864 } else { 7865 /* Reserved but not all registrants */ 7866 /* sa_res_key is res holder */ 7867 if (sa_res_key == ctl_get_prkey(lun, lun->pr_res_idx)) { 7868 /* validate scope and type */ 7869 if ((cdb->scope_type & SPR_SCOPE_MASK) != 7870 SPR_LU_SCOPE) { 7871 mtx_unlock(&lun->lun_lock); 7872 ctl_set_invalid_field(/*ctsio*/ ctsio, 7873 /*sks_valid*/ 1, 7874 /*command*/ 1, 7875 /*field*/ 2, 7876 /*bit_valid*/ 1, 7877 /*bit*/ 4); 7878 ctl_done((union ctl_io *)ctsio); 7879 return (1); 7880 } 7881 7882 if (type>8 || type==2 || type==4 || type==0) { 7883 mtx_unlock(&lun->lun_lock); 7884 ctl_set_invalid_field(/*ctsio*/ ctsio, 7885 /*sks_valid*/ 1, 7886 /*command*/ 1, 7887 /*field*/ 2, 7888 /*bit_valid*/ 1, 7889 /*bit*/ 0); 7890 ctl_done((union ctl_io *)ctsio); 7891 return (1); 7892 } 7893 7894 /* 7895 * Do the following: 7896 * if sa_res_key != res_key remove all 7897 * registrants w/sa_res_key and generate UA 7898 * for these registrants(Registrations 7899 * Preempted) if it wasn't an exclusive 7900 * reservation generate UA(Reservations 7901 * Preempted) for all other registered nexuses 7902 * if the type has changed. Establish the new 7903 * reservation and holder. If res_key and 7904 * sa_res_key are the same do the above 7905 * except don't unregister the res holder. 7906 */ 7907 7908 for(i = 0; i < CTL_MAX_INITIATORS; i++) { 7909 if (i == residx || ctl_get_prkey(lun, i) == 0) 7910 continue; 7911 7912 if (sa_res_key == ctl_get_prkey(lun, i)) { 7913 ctl_clr_prkey(lun, i); 7914 lun->pr_key_count--; 7915 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 7916 } else if (type != lun->res_type 7917 && (lun->res_type == SPR_TYPE_WR_EX_RO 7918 || lun->res_type ==SPR_TYPE_EX_AC_RO)){ 7919 ctl_est_ua(lun, i, CTL_UA_RES_RELEASE); 7920 } 7921 } 7922 lun->res_type = type; 7923 if (lun->res_type != SPR_TYPE_WR_EX_AR 7924 && lun->res_type != SPR_TYPE_EX_AC_AR) 7925 lun->pr_res_idx = residx; 7926 else 7927 lun->pr_res_idx = CTL_PR_ALL_REGISTRANTS; 7928 lun->PRGeneration++; 7929 mtx_unlock(&lun->lun_lock); 7930 7931 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 7932 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 7933 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 7934 persis_io.pr.pr_info.residx = lun->pr_res_idx; 7935 persis_io.pr.pr_info.res_type = type; 7936 memcpy(persis_io.pr.pr_info.sa_res_key, 7937 param->serv_act_res_key, 7938 sizeof(param->serv_act_res_key)); 7939 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 7940 sizeof(persis_io.pr), M_WAITOK); 7941 } else { 7942 /* 7943 * sa_res_key is not the res holder just 7944 * remove registrants 7945 */ 7946 int found=0; 7947 7948 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 7949 if (sa_res_key != ctl_get_prkey(lun, i)) 7950 continue; 7951 7952 found = 1; 7953 ctl_clr_prkey(lun, i); 7954 lun->pr_key_count--; 7955 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 7956 } 7957 7958 if (!found) { 7959 mtx_unlock(&lun->lun_lock); 7960 free(ctsio->kern_data_ptr, M_CTL); 7961 ctl_set_reservation_conflict(ctsio); 7962 ctl_done((union ctl_io *)ctsio); 7963 return (1); 7964 } 7965 lun->PRGeneration++; 7966 mtx_unlock(&lun->lun_lock); 7967 7968 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 7969 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 7970 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 7971 persis_io.pr.pr_info.residx = lun->pr_res_idx; 7972 persis_io.pr.pr_info.res_type = type; 7973 memcpy(persis_io.pr.pr_info.sa_res_key, 7974 param->serv_act_res_key, 7975 sizeof(param->serv_act_res_key)); 7976 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 7977 sizeof(persis_io.pr), M_WAITOK); 7978 } 7979 } 7980 return (0); 7981} 7982 7983static void 7984ctl_pro_preempt_other(struct ctl_lun *lun, union ctl_ha_msg *msg) 7985{ 7986 uint64_t sa_res_key; 7987 int i; 7988 7989 sa_res_key = scsi_8btou64(msg->pr.pr_info.sa_res_key); 7990 7991 if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS 7992 || lun->pr_res_idx == CTL_PR_NO_RESERVATION 7993 || sa_res_key != ctl_get_prkey(lun, lun->pr_res_idx)) { 7994 if (sa_res_key == 0) { 7995 /* 7996 * Unregister everybody else and build UA for 7997 * them 7998 */ 7999 for(i = 0; i < CTL_MAX_INITIATORS; i++) { 8000 if (i == msg->pr.pr_info.residx || 8001 ctl_get_prkey(lun, i) == 0) 8002 continue; 8003 8004 ctl_clr_prkey(lun, i); 8005 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 8006 } 8007 8008 lun->pr_key_count = 1; 8009 lun->res_type = msg->pr.pr_info.res_type; 8010 if (lun->res_type != SPR_TYPE_WR_EX_AR 8011 && lun->res_type != SPR_TYPE_EX_AC_AR) 8012 lun->pr_res_idx = msg->pr.pr_info.residx; 8013 } else { 8014 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 8015 if (sa_res_key == ctl_get_prkey(lun, i)) 8016 continue; 8017 8018 ctl_clr_prkey(lun, i); 8019 lun->pr_key_count--; 8020 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 8021 } 8022 } 8023 } else { 8024 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 8025 if (i == msg->pr.pr_info.residx || 8026 ctl_get_prkey(lun, i) == 0) 8027 continue; 8028 8029 if (sa_res_key == ctl_get_prkey(lun, i)) { 8030 ctl_clr_prkey(lun, i); 8031 lun->pr_key_count--; 8032 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 8033 } else if (msg->pr.pr_info.res_type != lun->res_type 8034 && (lun->res_type == SPR_TYPE_WR_EX_RO 8035 || lun->res_type == SPR_TYPE_EX_AC_RO)) { 8036 ctl_est_ua(lun, i, CTL_UA_RES_RELEASE); 8037 } 8038 } 8039 lun->res_type = msg->pr.pr_info.res_type; 8040 if (lun->res_type != SPR_TYPE_WR_EX_AR 8041 && lun->res_type != SPR_TYPE_EX_AC_AR) 8042 lun->pr_res_idx = msg->pr.pr_info.residx; 8043 else 8044 lun->pr_res_idx = CTL_PR_ALL_REGISTRANTS; 8045 } 8046 lun->PRGeneration++; 8047 8048} 8049 8050 8051int 8052ctl_persistent_reserve_out(struct ctl_scsiio *ctsio) 8053{ 8054 int retval; 8055 u_int32_t param_len; 8056 struct scsi_per_res_out *cdb; 8057 struct ctl_lun *lun; 8058 struct scsi_per_res_out_parms* param; 8059 struct ctl_softc *softc; 8060 uint32_t residx; 8061 uint64_t res_key, sa_res_key, key; 8062 uint8_t type; 8063 union ctl_ha_msg persis_io; 8064 int i; 8065 8066 CTL_DEBUG_PRINT(("ctl_persistent_reserve_out\n")); 8067 8068 retval = CTL_RETVAL_COMPLETE; 8069 8070 cdb = (struct scsi_per_res_out *)ctsio->cdb; 8071 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 8072 softc = lun->ctl_softc; 8073 8074 /* 8075 * We only support whole-LUN scope. The scope & type are ignored for 8076 * register, register and ignore existing key and clear. 8077 * We sometimes ignore scope and type on preempts too!! 8078 * Verify reservation type here as well. 8079 */ 8080 type = cdb->scope_type & SPR_TYPE_MASK; 8081 if ((cdb->action == SPRO_RESERVE) 8082 || (cdb->action == SPRO_RELEASE)) { 8083 if ((cdb->scope_type & SPR_SCOPE_MASK) != SPR_LU_SCOPE) { 8084 ctl_set_invalid_field(/*ctsio*/ ctsio, 8085 /*sks_valid*/ 1, 8086 /*command*/ 1, 8087 /*field*/ 2, 8088 /*bit_valid*/ 1, 8089 /*bit*/ 4); 8090 ctl_done((union ctl_io *)ctsio); 8091 return (CTL_RETVAL_COMPLETE); 8092 } 8093 8094 if (type>8 || type==2 || type==4 || type==0) { 8095 ctl_set_invalid_field(/*ctsio*/ ctsio, 8096 /*sks_valid*/ 1, 8097 /*command*/ 1, 8098 /*field*/ 2, 8099 /*bit_valid*/ 1, 8100 /*bit*/ 0); 8101 ctl_done((union ctl_io *)ctsio); 8102 return (CTL_RETVAL_COMPLETE); 8103 } 8104 } 8105 8106 param_len = scsi_4btoul(cdb->length); 8107 8108 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 8109 ctsio->kern_data_ptr = malloc(param_len, M_CTL, M_WAITOK); 8110 ctsio->kern_data_len = param_len; 8111 ctsio->kern_total_len = param_len; 8112 ctsio->kern_data_resid = 0; 8113 ctsio->kern_rel_offset = 0; 8114 ctsio->kern_sg_entries = 0; 8115 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 8116 ctsio->be_move_done = ctl_config_move_done; 8117 ctl_datamove((union ctl_io *)ctsio); 8118 8119 return (CTL_RETVAL_COMPLETE); 8120 } 8121 8122 param = (struct scsi_per_res_out_parms *)ctsio->kern_data_ptr; 8123 8124 residx = ctl_get_initindex(&ctsio->io_hdr.nexus); 8125 res_key = scsi_8btou64(param->res_key.key); 8126 sa_res_key = scsi_8btou64(param->serv_act_res_key); 8127 8128 /* 8129 * Validate the reservation key here except for SPRO_REG_IGNO 8130 * This must be done for all other service actions 8131 */ 8132 if ((cdb->action & SPRO_ACTION_MASK) != SPRO_REG_IGNO) { 8133 mtx_lock(&lun->lun_lock); 8134 if ((key = ctl_get_prkey(lun, residx)) != 0) { 8135 if (res_key != key) { 8136 /* 8137 * The current key passed in doesn't match 8138 * the one the initiator previously 8139 * registered. 8140 */ 8141 mtx_unlock(&lun->lun_lock); 8142 free(ctsio->kern_data_ptr, M_CTL); 8143 ctl_set_reservation_conflict(ctsio); 8144 ctl_done((union ctl_io *)ctsio); 8145 return (CTL_RETVAL_COMPLETE); 8146 } 8147 } else if ((cdb->action & SPRO_ACTION_MASK) != SPRO_REGISTER) { 8148 /* 8149 * We are not registered 8150 */ 8151 mtx_unlock(&lun->lun_lock); 8152 free(ctsio->kern_data_ptr, M_CTL); 8153 ctl_set_reservation_conflict(ctsio); 8154 ctl_done((union ctl_io *)ctsio); 8155 return (CTL_RETVAL_COMPLETE); 8156 } else if (res_key != 0) { 8157 /* 8158 * We are not registered and trying to register but 8159 * the register key isn't zero. 8160 */ 8161 mtx_unlock(&lun->lun_lock); 8162 free(ctsio->kern_data_ptr, M_CTL); 8163 ctl_set_reservation_conflict(ctsio); 8164 ctl_done((union ctl_io *)ctsio); 8165 return (CTL_RETVAL_COMPLETE); 8166 } 8167 mtx_unlock(&lun->lun_lock); 8168 } 8169 8170 switch (cdb->action & SPRO_ACTION_MASK) { 8171 case SPRO_REGISTER: 8172 case SPRO_REG_IGNO: { 8173 8174#if 0 8175 printf("Registration received\n"); 8176#endif 8177 8178 /* 8179 * We don't support any of these options, as we report in 8180 * the read capabilities request (see 8181 * ctl_persistent_reserve_in(), above). 8182 */ 8183 if ((param->flags & SPR_SPEC_I_PT) 8184 || (param->flags & SPR_ALL_TG_PT) 8185 || (param->flags & SPR_APTPL)) { 8186 int bit_ptr; 8187 8188 if (param->flags & SPR_APTPL) 8189 bit_ptr = 0; 8190 else if (param->flags & SPR_ALL_TG_PT) 8191 bit_ptr = 2; 8192 else /* SPR_SPEC_I_PT */ 8193 bit_ptr = 3; 8194 8195 free(ctsio->kern_data_ptr, M_CTL); 8196 ctl_set_invalid_field(ctsio, 8197 /*sks_valid*/ 1, 8198 /*command*/ 0, 8199 /*field*/ 20, 8200 /*bit_valid*/ 1, 8201 /*bit*/ bit_ptr); 8202 ctl_done((union ctl_io *)ctsio); 8203 return (CTL_RETVAL_COMPLETE); 8204 } 8205 8206 mtx_lock(&lun->lun_lock); 8207 8208 /* 8209 * The initiator wants to clear the 8210 * key/unregister. 8211 */ 8212 if (sa_res_key == 0) { 8213 if ((res_key == 0 8214 && (cdb->action & SPRO_ACTION_MASK) == SPRO_REGISTER) 8215 || ((cdb->action & SPRO_ACTION_MASK) == SPRO_REG_IGNO 8216 && ctl_get_prkey(lun, residx) == 0)) { 8217 mtx_unlock(&lun->lun_lock); 8218 goto done; 8219 } 8220 8221 ctl_clr_prkey(lun, residx); 8222 lun->pr_key_count--; 8223 8224 if (residx == lun->pr_res_idx) { 8225 lun->flags &= ~CTL_LUN_PR_RESERVED; 8226 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8227 8228 if ((lun->res_type == SPR_TYPE_WR_EX_RO 8229 || lun->res_type == SPR_TYPE_EX_AC_RO) 8230 && lun->pr_key_count) { 8231 /* 8232 * If the reservation is a registrants 8233 * only type we need to generate a UA 8234 * for other registered inits. The 8235 * sense code should be RESERVATIONS 8236 * RELEASED 8237 */ 8238 8239 for (i = softc->init_min; i < softc->init_max; i++){ 8240 if (ctl_get_prkey(lun, i) == 0) 8241 continue; 8242 ctl_est_ua(lun, i, 8243 CTL_UA_RES_RELEASE); 8244 } 8245 } 8246 lun->res_type = 0; 8247 } else if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS) { 8248 if (lun->pr_key_count==0) { 8249 lun->flags &= ~CTL_LUN_PR_RESERVED; 8250 lun->res_type = 0; 8251 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8252 } 8253 } 8254 lun->PRGeneration++; 8255 mtx_unlock(&lun->lun_lock); 8256 8257 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8258 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8259 persis_io.pr.pr_info.action = CTL_PR_UNREG_KEY; 8260 persis_io.pr.pr_info.residx = residx; 8261 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8262 sizeof(persis_io.pr), M_WAITOK); 8263 } else /* sa_res_key != 0 */ { 8264 8265 /* 8266 * If we aren't registered currently then increment 8267 * the key count and set the registered flag. 8268 */ 8269 ctl_alloc_prkey(lun, residx); 8270 if (ctl_get_prkey(lun, residx) == 0) 8271 lun->pr_key_count++; 8272 ctl_set_prkey(lun, residx, sa_res_key); 8273 lun->PRGeneration++; 8274 mtx_unlock(&lun->lun_lock); 8275 8276 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8277 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8278 persis_io.pr.pr_info.action = CTL_PR_REG_KEY; 8279 persis_io.pr.pr_info.residx = residx; 8280 memcpy(persis_io.pr.pr_info.sa_res_key, 8281 param->serv_act_res_key, 8282 sizeof(param->serv_act_res_key)); 8283 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8284 sizeof(persis_io.pr), M_WAITOK); 8285 } 8286 8287 break; 8288 } 8289 case SPRO_RESERVE: 8290#if 0 8291 printf("Reserve executed type %d\n", type); 8292#endif 8293 mtx_lock(&lun->lun_lock); 8294 if (lun->flags & CTL_LUN_PR_RESERVED) { 8295 /* 8296 * if this isn't the reservation holder and it's 8297 * not a "all registrants" type or if the type is 8298 * different then we have a conflict 8299 */ 8300 if ((lun->pr_res_idx != residx 8301 && lun->pr_res_idx != CTL_PR_ALL_REGISTRANTS) 8302 || lun->res_type != type) { 8303 mtx_unlock(&lun->lun_lock); 8304 free(ctsio->kern_data_ptr, M_CTL); 8305 ctl_set_reservation_conflict(ctsio); 8306 ctl_done((union ctl_io *)ctsio); 8307 return (CTL_RETVAL_COMPLETE); 8308 } 8309 mtx_unlock(&lun->lun_lock); 8310 } else /* create a reservation */ { 8311 /* 8312 * If it's not an "all registrants" type record 8313 * reservation holder 8314 */ 8315 if (type != SPR_TYPE_WR_EX_AR 8316 && type != SPR_TYPE_EX_AC_AR) 8317 lun->pr_res_idx = residx; /* Res holder */ 8318 else 8319 lun->pr_res_idx = CTL_PR_ALL_REGISTRANTS; 8320 8321 lun->flags |= CTL_LUN_PR_RESERVED; 8322 lun->res_type = type; 8323 8324 mtx_unlock(&lun->lun_lock); 8325 8326 /* send msg to other side */ 8327 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8328 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8329 persis_io.pr.pr_info.action = CTL_PR_RESERVE; 8330 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8331 persis_io.pr.pr_info.res_type = type; 8332 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8333 sizeof(persis_io.pr), M_WAITOK); 8334 } 8335 break; 8336 8337 case SPRO_RELEASE: 8338 mtx_lock(&lun->lun_lock); 8339 if ((lun->flags & CTL_LUN_PR_RESERVED) == 0) { 8340 /* No reservation exists return good status */ 8341 mtx_unlock(&lun->lun_lock); 8342 goto done; 8343 } 8344 /* 8345 * Is this nexus a reservation holder? 8346 */ 8347 if (lun->pr_res_idx != residx 8348 && lun->pr_res_idx != CTL_PR_ALL_REGISTRANTS) { 8349 /* 8350 * not a res holder return good status but 8351 * do nothing 8352 */ 8353 mtx_unlock(&lun->lun_lock); 8354 goto done; 8355 } 8356 8357 if (lun->res_type != type) { 8358 mtx_unlock(&lun->lun_lock); 8359 free(ctsio->kern_data_ptr, M_CTL); 8360 ctl_set_illegal_pr_release(ctsio); 8361 ctl_done((union ctl_io *)ctsio); 8362 return (CTL_RETVAL_COMPLETE); 8363 } 8364 8365 /* okay to release */ 8366 lun->flags &= ~CTL_LUN_PR_RESERVED; 8367 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8368 lun->res_type = 0; 8369 8370 /* 8371 * if this isn't an exclusive access 8372 * res generate UA for all other 8373 * registrants. 8374 */ 8375 if (type != SPR_TYPE_EX_AC 8376 && type != SPR_TYPE_WR_EX) { 8377 for (i = softc->init_min; i < softc->init_max; i++) { 8378 if (i == residx || ctl_get_prkey(lun, i) == 0) 8379 continue; 8380 ctl_est_ua(lun, i, CTL_UA_RES_RELEASE); 8381 } 8382 } 8383 mtx_unlock(&lun->lun_lock); 8384 8385 /* Send msg to other side */ 8386 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8387 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8388 persis_io.pr.pr_info.action = CTL_PR_RELEASE; 8389 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8390 sizeof(persis_io.pr), M_WAITOK); 8391 break; 8392 8393 case SPRO_CLEAR: 8394 /* send msg to other side */ 8395 8396 mtx_lock(&lun->lun_lock); 8397 lun->flags &= ~CTL_LUN_PR_RESERVED; 8398 lun->res_type = 0; 8399 lun->pr_key_count = 0; 8400 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8401 8402 ctl_clr_prkey(lun, residx); 8403 for (i = 0; i < CTL_MAX_INITIATORS; i++) 8404 if (ctl_get_prkey(lun, i) != 0) { 8405 ctl_clr_prkey(lun, i); 8406 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 8407 } 8408 lun->PRGeneration++; 8409 mtx_unlock(&lun->lun_lock); 8410 8411 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8412 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8413 persis_io.pr.pr_info.action = CTL_PR_CLEAR; 8414 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8415 sizeof(persis_io.pr), M_WAITOK); 8416 break; 8417 8418 case SPRO_PREEMPT: 8419 case SPRO_PRE_ABO: { 8420 int nretval; 8421 8422 nretval = ctl_pro_preempt(softc, lun, res_key, sa_res_key, type, 8423 residx, ctsio, cdb, param); 8424 if (nretval != 0) 8425 return (CTL_RETVAL_COMPLETE); 8426 break; 8427 } 8428 default: 8429 panic("Invalid PR type %x", cdb->action); 8430 } 8431 8432done: 8433 free(ctsio->kern_data_ptr, M_CTL); 8434 ctl_set_success(ctsio); 8435 ctl_done((union ctl_io *)ctsio); 8436 8437 return (retval); 8438} 8439 8440/* 8441 * This routine is for handling a message from the other SC pertaining to 8442 * persistent reserve out. All the error checking will have been done 8443 * so only perorming the action need be done here to keep the two 8444 * in sync. 8445 */ 8446static void 8447ctl_hndl_per_res_out_on_other_sc(union ctl_ha_msg *msg) 8448{ 8449 struct ctl_softc *softc = control_softc; 8450 struct ctl_lun *lun; 8451 int i; 8452 uint32_t residx, targ_lun; 8453 8454 targ_lun = msg->hdr.nexus.targ_mapped_lun; 8455 mtx_lock(&softc->ctl_lock); 8456 if ((targ_lun >= CTL_MAX_LUNS) || 8457 ((lun = softc->ctl_luns[targ_lun]) == NULL)) { 8458 mtx_unlock(&softc->ctl_lock); 8459 return; 8460 } 8461 mtx_lock(&lun->lun_lock); 8462 mtx_unlock(&softc->ctl_lock); 8463 if (lun->flags & CTL_LUN_DISABLED) { 8464 mtx_unlock(&lun->lun_lock); 8465 return; 8466 } 8467 residx = ctl_get_initindex(&msg->hdr.nexus); 8468 switch(msg->pr.pr_info.action) { 8469 case CTL_PR_REG_KEY: 8470 ctl_alloc_prkey(lun, msg->pr.pr_info.residx); 8471 if (ctl_get_prkey(lun, msg->pr.pr_info.residx) == 0) 8472 lun->pr_key_count++; 8473 ctl_set_prkey(lun, msg->pr.pr_info.residx, 8474 scsi_8btou64(msg->pr.pr_info.sa_res_key)); 8475 lun->PRGeneration++; 8476 break; 8477 8478 case CTL_PR_UNREG_KEY: 8479 ctl_clr_prkey(lun, msg->pr.pr_info.residx); 8480 lun->pr_key_count--; 8481 8482 /* XXX Need to see if the reservation has been released */ 8483 /* if so do we need to generate UA? */ 8484 if (msg->pr.pr_info.residx == lun->pr_res_idx) { 8485 lun->flags &= ~CTL_LUN_PR_RESERVED; 8486 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8487 8488 if ((lun->res_type == SPR_TYPE_WR_EX_RO 8489 || lun->res_type == SPR_TYPE_EX_AC_RO) 8490 && lun->pr_key_count) { 8491 /* 8492 * If the reservation is a registrants 8493 * only type we need to generate a UA 8494 * for other registered inits. The 8495 * sense code should be RESERVATIONS 8496 * RELEASED 8497 */ 8498 8499 for (i = softc->init_min; i < softc->init_max; i++) { 8500 if (ctl_get_prkey(lun, i) == 0) 8501 continue; 8502 8503 ctl_est_ua(lun, i, CTL_UA_RES_RELEASE); 8504 } 8505 } 8506 lun->res_type = 0; 8507 } else if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS) { 8508 if (lun->pr_key_count==0) { 8509 lun->flags &= ~CTL_LUN_PR_RESERVED; 8510 lun->res_type = 0; 8511 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8512 } 8513 } 8514 lun->PRGeneration++; 8515 break; 8516 8517 case CTL_PR_RESERVE: 8518 lun->flags |= CTL_LUN_PR_RESERVED; 8519 lun->res_type = msg->pr.pr_info.res_type; 8520 lun->pr_res_idx = msg->pr.pr_info.residx; 8521 8522 break; 8523 8524 case CTL_PR_RELEASE: 8525 /* 8526 * if this isn't an exclusive access res generate UA for all 8527 * other registrants. 8528 */ 8529 if (lun->res_type != SPR_TYPE_EX_AC 8530 && lun->res_type != SPR_TYPE_WR_EX) { 8531 for (i = softc->init_min; i < softc->init_max; i++) 8532 if (i == residx || ctl_get_prkey(lun, i) == 0) 8533 continue; 8534 ctl_est_ua(lun, i, CTL_UA_RES_RELEASE); 8535 } 8536 8537 lun->flags &= ~CTL_LUN_PR_RESERVED; 8538 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8539 lun->res_type = 0; 8540 break; 8541 8542 case CTL_PR_PREEMPT: 8543 ctl_pro_preempt_other(lun, msg); 8544 break; 8545 case CTL_PR_CLEAR: 8546 lun->flags &= ~CTL_LUN_PR_RESERVED; 8547 lun->res_type = 0; 8548 lun->pr_key_count = 0; 8549 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8550 8551 for (i=0; i < CTL_MAX_INITIATORS; i++) { 8552 if (ctl_get_prkey(lun, i) == 0) 8553 continue; 8554 ctl_clr_prkey(lun, i); 8555 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 8556 } 8557 lun->PRGeneration++; 8558 break; 8559 } 8560 8561 mtx_unlock(&lun->lun_lock); 8562} 8563 8564int 8565ctl_read_write(struct ctl_scsiio *ctsio) 8566{ 8567 struct ctl_lun *lun; 8568 struct ctl_lba_len_flags *lbalen; 8569 uint64_t lba; 8570 uint32_t num_blocks; 8571 int flags, retval; 8572 int isread; 8573 8574 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 8575 8576 CTL_DEBUG_PRINT(("ctl_read_write: command: %#x\n", ctsio->cdb[0])); 8577 8578 flags = 0; 8579 isread = ctsio->cdb[0] == READ_6 || ctsio->cdb[0] == READ_10 8580 || ctsio->cdb[0] == READ_12 || ctsio->cdb[0] == READ_16; 8581 switch (ctsio->cdb[0]) { 8582 case READ_6: 8583 case WRITE_6: { 8584 struct scsi_rw_6 *cdb; 8585 8586 cdb = (struct scsi_rw_6 *)ctsio->cdb; 8587 8588 lba = scsi_3btoul(cdb->addr); 8589 /* only 5 bits are valid in the most significant address byte */ 8590 lba &= 0x1fffff; 8591 num_blocks = cdb->length; 8592 /* 8593 * This is correct according to SBC-2. 8594 */ 8595 if (num_blocks == 0) 8596 num_blocks = 256; 8597 break; 8598 } 8599 case READ_10: 8600 case WRITE_10: { 8601 struct scsi_rw_10 *cdb; 8602 8603 cdb = (struct scsi_rw_10 *)ctsio->cdb; 8604 if (cdb->byte2 & SRW10_FUA) 8605 flags |= CTL_LLF_FUA; 8606 if (cdb->byte2 & SRW10_DPO) 8607 flags |= CTL_LLF_DPO; 8608 lba = scsi_4btoul(cdb->addr); 8609 num_blocks = scsi_2btoul(cdb->length); 8610 break; 8611 } 8612 case WRITE_VERIFY_10: { 8613 struct scsi_write_verify_10 *cdb; 8614 8615 cdb = (struct scsi_write_verify_10 *)ctsio->cdb; 8616 flags |= CTL_LLF_FUA; 8617 if (cdb->byte2 & SWV_DPO) 8618 flags |= CTL_LLF_DPO; 8619 lba = scsi_4btoul(cdb->addr); 8620 num_blocks = scsi_2btoul(cdb->length); 8621 break; 8622 } 8623 case READ_12: 8624 case WRITE_12: { 8625 struct scsi_rw_12 *cdb; 8626 8627 cdb = (struct scsi_rw_12 *)ctsio->cdb; 8628 if (cdb->byte2 & SRW12_FUA) 8629 flags |= CTL_LLF_FUA; 8630 if (cdb->byte2 & SRW12_DPO) 8631 flags |= CTL_LLF_DPO; 8632 lba = scsi_4btoul(cdb->addr); 8633 num_blocks = scsi_4btoul(cdb->length); 8634 break; 8635 } 8636 case WRITE_VERIFY_12: { 8637 struct scsi_write_verify_12 *cdb; 8638 8639 cdb = (struct scsi_write_verify_12 *)ctsio->cdb; 8640 flags |= CTL_LLF_FUA; 8641 if (cdb->byte2 & SWV_DPO) 8642 flags |= CTL_LLF_DPO; 8643 lba = scsi_4btoul(cdb->addr); 8644 num_blocks = scsi_4btoul(cdb->length); 8645 break; 8646 } 8647 case READ_16: 8648 case WRITE_16: { 8649 struct scsi_rw_16 *cdb; 8650 8651 cdb = (struct scsi_rw_16 *)ctsio->cdb; 8652 if (cdb->byte2 & SRW12_FUA) 8653 flags |= CTL_LLF_FUA; 8654 if (cdb->byte2 & SRW12_DPO) 8655 flags |= CTL_LLF_DPO; 8656 lba = scsi_8btou64(cdb->addr); 8657 num_blocks = scsi_4btoul(cdb->length); 8658 break; 8659 } 8660 case WRITE_ATOMIC_16: { 8661 struct scsi_write_atomic_16 *cdb; 8662 8663 if (lun->be_lun->atomicblock == 0) { 8664 ctl_set_invalid_opcode(ctsio); 8665 ctl_done((union ctl_io *)ctsio); 8666 return (CTL_RETVAL_COMPLETE); 8667 } 8668 8669 cdb = (struct scsi_write_atomic_16 *)ctsio->cdb; 8670 if (cdb->byte2 & SRW12_FUA) 8671 flags |= CTL_LLF_FUA; 8672 if (cdb->byte2 & SRW12_DPO) 8673 flags |= CTL_LLF_DPO; 8674 lba = scsi_8btou64(cdb->addr); 8675 num_blocks = scsi_2btoul(cdb->length); 8676 if (num_blocks > lun->be_lun->atomicblock) { 8677 ctl_set_invalid_field(ctsio, /*sks_valid*/ 1, 8678 /*command*/ 1, /*field*/ 12, /*bit_valid*/ 0, 8679 /*bit*/ 0); 8680 ctl_done((union ctl_io *)ctsio); 8681 return (CTL_RETVAL_COMPLETE); 8682 } 8683 break; 8684 } 8685 case WRITE_VERIFY_16: { 8686 struct scsi_write_verify_16 *cdb; 8687 8688 cdb = (struct scsi_write_verify_16 *)ctsio->cdb; 8689 flags |= CTL_LLF_FUA; 8690 if (cdb->byte2 & SWV_DPO) 8691 flags |= CTL_LLF_DPO; 8692 lba = scsi_8btou64(cdb->addr); 8693 num_blocks = scsi_4btoul(cdb->length); 8694 break; 8695 } 8696 default: 8697 /* 8698 * We got a command we don't support. This shouldn't 8699 * happen, commands should be filtered out above us. 8700 */ 8701 ctl_set_invalid_opcode(ctsio); 8702 ctl_done((union ctl_io *)ctsio); 8703 8704 return (CTL_RETVAL_COMPLETE); 8705 break; /* NOTREACHED */ 8706 } 8707 8708 /* 8709 * The first check is to make sure we're in bounds, the second 8710 * check is to catch wrap-around problems. If the lba + num blocks 8711 * is less than the lba, then we've wrapped around and the block 8712 * range is invalid anyway. 8713 */ 8714 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 8715 || ((lba + num_blocks) < lba)) { 8716 ctl_set_lba_out_of_range(ctsio); 8717 ctl_done((union ctl_io *)ctsio); 8718 return (CTL_RETVAL_COMPLETE); 8719 } 8720 8721 /* 8722 * According to SBC-3, a transfer length of 0 is not an error. 8723 * Note that this cannot happen with WRITE(6) or READ(6), since 0 8724 * translates to 256 blocks for those commands. 8725 */ 8726 if (num_blocks == 0) { 8727 ctl_set_success(ctsio); 8728 ctl_done((union ctl_io *)ctsio); 8729 return (CTL_RETVAL_COMPLETE); 8730 } 8731 8732 /* Set FUA and/or DPO if caches are disabled. */ 8733 if (isread) { 8734 if ((lun->mode_pages.caching_page[CTL_PAGE_CURRENT].flags1 & 8735 SCP_RCD) != 0) 8736 flags |= CTL_LLF_FUA | CTL_LLF_DPO; 8737 } else { 8738 if ((lun->mode_pages.caching_page[CTL_PAGE_CURRENT].flags1 & 8739 SCP_WCE) == 0) 8740 flags |= CTL_LLF_FUA; 8741 } 8742 8743 lbalen = (struct ctl_lba_len_flags *) 8744 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 8745 lbalen->lba = lba; 8746 lbalen->len = num_blocks; 8747 lbalen->flags = (isread ? CTL_LLF_READ : CTL_LLF_WRITE) | flags; 8748 8749 ctsio->kern_total_len = num_blocks * lun->be_lun->blocksize; 8750 ctsio->kern_rel_offset = 0; 8751 8752 CTL_DEBUG_PRINT(("ctl_read_write: calling data_submit()\n")); 8753 8754 retval = lun->backend->data_submit((union ctl_io *)ctsio); 8755 return (retval); 8756} 8757 8758static int 8759ctl_cnw_cont(union ctl_io *io) 8760{ 8761 struct ctl_scsiio *ctsio; 8762 struct ctl_lun *lun; 8763 struct ctl_lba_len_flags *lbalen; 8764 int retval; 8765 8766 ctsio = &io->scsiio; 8767 ctsio->io_hdr.status = CTL_STATUS_NONE; 8768 ctsio->io_hdr.flags &= ~CTL_FLAG_IO_CONT; 8769 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 8770 lbalen = (struct ctl_lba_len_flags *) 8771 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 8772 lbalen->flags &= ~CTL_LLF_COMPARE; 8773 lbalen->flags |= CTL_LLF_WRITE; 8774 8775 CTL_DEBUG_PRINT(("ctl_cnw_cont: calling data_submit()\n")); 8776 retval = lun->backend->data_submit((union ctl_io *)ctsio); 8777 return (retval); 8778} 8779 8780int 8781ctl_cnw(struct ctl_scsiio *ctsio) 8782{ 8783 struct ctl_lun *lun; 8784 struct ctl_lba_len_flags *lbalen; 8785 uint64_t lba; 8786 uint32_t num_blocks; 8787 int flags, retval; 8788 8789 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 8790 8791 CTL_DEBUG_PRINT(("ctl_cnw: command: %#x\n", ctsio->cdb[0])); 8792 8793 flags = 0; 8794 switch (ctsio->cdb[0]) { 8795 case COMPARE_AND_WRITE: { 8796 struct scsi_compare_and_write *cdb; 8797 8798 cdb = (struct scsi_compare_and_write *)ctsio->cdb; 8799 if (cdb->byte2 & SRW10_FUA) 8800 flags |= CTL_LLF_FUA; 8801 if (cdb->byte2 & SRW10_DPO) 8802 flags |= CTL_LLF_DPO; 8803 lba = scsi_8btou64(cdb->addr); 8804 num_blocks = cdb->length; 8805 break; 8806 } 8807 default: 8808 /* 8809 * We got a command we don't support. This shouldn't 8810 * happen, commands should be filtered out above us. 8811 */ 8812 ctl_set_invalid_opcode(ctsio); 8813 ctl_done((union ctl_io *)ctsio); 8814 8815 return (CTL_RETVAL_COMPLETE); 8816 break; /* NOTREACHED */ 8817 } 8818 8819 /* 8820 * The first check is to make sure we're in bounds, the second 8821 * check is to catch wrap-around problems. If the lba + num blocks 8822 * is less than the lba, then we've wrapped around and the block 8823 * range is invalid anyway. 8824 */ 8825 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 8826 || ((lba + num_blocks) < lba)) { 8827 ctl_set_lba_out_of_range(ctsio); 8828 ctl_done((union ctl_io *)ctsio); 8829 return (CTL_RETVAL_COMPLETE); 8830 } 8831 8832 /* 8833 * According to SBC-3, a transfer length of 0 is not an error. 8834 */ 8835 if (num_blocks == 0) { 8836 ctl_set_success(ctsio); 8837 ctl_done((union ctl_io *)ctsio); 8838 return (CTL_RETVAL_COMPLETE); 8839 } 8840 8841 /* Set FUA if write cache is disabled. */ 8842 if ((lun->mode_pages.caching_page[CTL_PAGE_CURRENT].flags1 & 8843 SCP_WCE) == 0) 8844 flags |= CTL_LLF_FUA; 8845 8846 ctsio->kern_total_len = 2 * num_blocks * lun->be_lun->blocksize; 8847 ctsio->kern_rel_offset = 0; 8848 8849 /* 8850 * Set the IO_CONT flag, so that if this I/O gets passed to 8851 * ctl_data_submit_done(), it'll get passed back to 8852 * ctl_ctl_cnw_cont() for further processing. 8853 */ 8854 ctsio->io_hdr.flags |= CTL_FLAG_IO_CONT; 8855 ctsio->io_cont = ctl_cnw_cont; 8856 8857 lbalen = (struct ctl_lba_len_flags *) 8858 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 8859 lbalen->lba = lba; 8860 lbalen->len = num_blocks; 8861 lbalen->flags = CTL_LLF_COMPARE | flags; 8862 8863 CTL_DEBUG_PRINT(("ctl_cnw: calling data_submit()\n")); 8864 retval = lun->backend->data_submit((union ctl_io *)ctsio); 8865 return (retval); 8866} 8867 8868int 8869ctl_verify(struct ctl_scsiio *ctsio) 8870{ 8871 struct ctl_lun *lun; 8872 struct ctl_lba_len_flags *lbalen; 8873 uint64_t lba; 8874 uint32_t num_blocks; 8875 int bytchk, flags; 8876 int retval; 8877 8878 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 8879 8880 CTL_DEBUG_PRINT(("ctl_verify: command: %#x\n", ctsio->cdb[0])); 8881 8882 bytchk = 0; 8883 flags = CTL_LLF_FUA; 8884 switch (ctsio->cdb[0]) { 8885 case VERIFY_10: { 8886 struct scsi_verify_10 *cdb; 8887 8888 cdb = (struct scsi_verify_10 *)ctsio->cdb; 8889 if (cdb->byte2 & SVFY_BYTCHK) 8890 bytchk = 1; 8891 if (cdb->byte2 & SVFY_DPO) 8892 flags |= CTL_LLF_DPO; 8893 lba = scsi_4btoul(cdb->addr); 8894 num_blocks = scsi_2btoul(cdb->length); 8895 break; 8896 } 8897 case VERIFY_12: { 8898 struct scsi_verify_12 *cdb; 8899 8900 cdb = (struct scsi_verify_12 *)ctsio->cdb; 8901 if (cdb->byte2 & SVFY_BYTCHK) 8902 bytchk = 1; 8903 if (cdb->byte2 & SVFY_DPO) 8904 flags |= CTL_LLF_DPO; 8905 lba = scsi_4btoul(cdb->addr); 8906 num_blocks = scsi_4btoul(cdb->length); 8907 break; 8908 } 8909 case VERIFY_16: { 8910 struct scsi_rw_16 *cdb; 8911 8912 cdb = (struct scsi_rw_16 *)ctsio->cdb; 8913 if (cdb->byte2 & SVFY_BYTCHK) 8914 bytchk = 1; 8915 if (cdb->byte2 & SVFY_DPO) 8916 flags |= CTL_LLF_DPO; 8917 lba = scsi_8btou64(cdb->addr); 8918 num_blocks = scsi_4btoul(cdb->length); 8919 break; 8920 } 8921 default: 8922 /* 8923 * We got a command we don't support. This shouldn't 8924 * happen, commands should be filtered out above us. 8925 */ 8926 ctl_set_invalid_opcode(ctsio); 8927 ctl_done((union ctl_io *)ctsio); 8928 return (CTL_RETVAL_COMPLETE); 8929 } 8930 8931 /* 8932 * The first check is to make sure we're in bounds, the second 8933 * check is to catch wrap-around problems. If the lba + num blocks 8934 * is less than the lba, then we've wrapped around and the block 8935 * range is invalid anyway. 8936 */ 8937 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 8938 || ((lba + num_blocks) < lba)) { 8939 ctl_set_lba_out_of_range(ctsio); 8940 ctl_done((union ctl_io *)ctsio); 8941 return (CTL_RETVAL_COMPLETE); 8942 } 8943 8944 /* 8945 * According to SBC-3, a transfer length of 0 is not an error. 8946 */ 8947 if (num_blocks == 0) { 8948 ctl_set_success(ctsio); 8949 ctl_done((union ctl_io *)ctsio); 8950 return (CTL_RETVAL_COMPLETE); 8951 } 8952 8953 lbalen = (struct ctl_lba_len_flags *) 8954 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 8955 lbalen->lba = lba; 8956 lbalen->len = num_blocks; 8957 if (bytchk) { 8958 lbalen->flags = CTL_LLF_COMPARE | flags; 8959 ctsio->kern_total_len = num_blocks * lun->be_lun->blocksize; 8960 } else { 8961 lbalen->flags = CTL_LLF_VERIFY | flags; 8962 ctsio->kern_total_len = 0; 8963 } 8964 ctsio->kern_rel_offset = 0; 8965 8966 CTL_DEBUG_PRINT(("ctl_verify: calling data_submit()\n")); 8967 retval = lun->backend->data_submit((union ctl_io *)ctsio); 8968 return (retval); 8969} 8970 8971int 8972ctl_report_luns(struct ctl_scsiio *ctsio) 8973{ 8974 struct ctl_softc *softc; 8975 struct scsi_report_luns *cdb; 8976 struct scsi_report_luns_data *lun_data; 8977 struct ctl_lun *lun, *request_lun; 8978 struct ctl_port *port; 8979 int num_luns, retval; 8980 uint32_t alloc_len, lun_datalen; 8981 int num_filled; 8982 uint32_t initidx, targ_lun_id, lun_id; 8983 8984 retval = CTL_RETVAL_COMPLETE; 8985 cdb = (struct scsi_report_luns *)ctsio->cdb; 8986 port = ctl_io_port(&ctsio->io_hdr); 8987 softc = port->ctl_softc; 8988 8989 CTL_DEBUG_PRINT(("ctl_report_luns\n")); 8990 8991 mtx_lock(&softc->ctl_lock); 8992 num_luns = 0; 8993 for (targ_lun_id = 0; targ_lun_id < CTL_MAX_LUNS; targ_lun_id++) { 8994 if (ctl_lun_map_from_port(port, targ_lun_id) < CTL_MAX_LUNS) 8995 num_luns++; 8996 } 8997 mtx_unlock(&softc->ctl_lock); 8998 8999 switch (cdb->select_report) { 9000 case RPL_REPORT_DEFAULT: 9001 case RPL_REPORT_ALL: 9002 case RPL_REPORT_NONSUBSID: 9003 break; 9004 case RPL_REPORT_WELLKNOWN: 9005 case RPL_REPORT_ADMIN: 9006 case RPL_REPORT_CONGLOM: 9007 num_luns = 0; 9008 break; 9009 default: 9010 ctl_set_invalid_field(ctsio, 9011 /*sks_valid*/ 1, 9012 /*command*/ 1, 9013 /*field*/ 2, 9014 /*bit_valid*/ 0, 9015 /*bit*/ 0); 9016 ctl_done((union ctl_io *)ctsio); 9017 return (retval); 9018 break; /* NOTREACHED */ 9019 } 9020 9021 alloc_len = scsi_4btoul(cdb->length); 9022 /* 9023 * The initiator has to allocate at least 16 bytes for this request, 9024 * so he can at least get the header and the first LUN. Otherwise 9025 * we reject the request (per SPC-3 rev 14, section 6.21). 9026 */ 9027 if (alloc_len < (sizeof(struct scsi_report_luns_data) + 9028 sizeof(struct scsi_report_luns_lundata))) { 9029 ctl_set_invalid_field(ctsio, 9030 /*sks_valid*/ 1, 9031 /*command*/ 1, 9032 /*field*/ 6, 9033 /*bit_valid*/ 0, 9034 /*bit*/ 0); 9035 ctl_done((union ctl_io *)ctsio); 9036 return (retval); 9037 } 9038 9039 request_lun = (struct ctl_lun *) 9040 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9041 9042 lun_datalen = sizeof(*lun_data) + 9043 (num_luns * sizeof(struct scsi_report_luns_lundata)); 9044 9045 ctsio->kern_data_ptr = malloc(lun_datalen, M_CTL, M_WAITOK | M_ZERO); 9046 lun_data = (struct scsi_report_luns_data *)ctsio->kern_data_ptr; 9047 ctsio->kern_sg_entries = 0; 9048 9049 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 9050 9051 mtx_lock(&softc->ctl_lock); 9052 for (targ_lun_id = 0, num_filled = 0; targ_lun_id < CTL_MAX_LUNS && num_filled < num_luns; targ_lun_id++) { 9053 lun_id = ctl_lun_map_from_port(port, targ_lun_id); 9054 if (lun_id >= CTL_MAX_LUNS) 9055 continue; 9056 lun = softc->ctl_luns[lun_id]; 9057 if (lun == NULL) 9058 continue; 9059 9060 if (targ_lun_id <= 0xff) { 9061 /* 9062 * Peripheral addressing method, bus number 0. 9063 */ 9064 lun_data->luns[num_filled].lundata[0] = 9065 RPL_LUNDATA_ATYP_PERIPH; 9066 lun_data->luns[num_filled].lundata[1] = targ_lun_id; 9067 num_filled++; 9068 } else if (targ_lun_id <= 0x3fff) { 9069 /* 9070 * Flat addressing method. 9071 */ 9072 lun_data->luns[num_filled].lundata[0] = 9073 RPL_LUNDATA_ATYP_FLAT | (targ_lun_id >> 8); 9074 lun_data->luns[num_filled].lundata[1] = 9075 (targ_lun_id & 0xff); 9076 num_filled++; 9077 } else if (targ_lun_id <= 0xffffff) { 9078 /* 9079 * Extended flat addressing method. 9080 */ 9081 lun_data->luns[num_filled].lundata[0] = 9082 RPL_LUNDATA_ATYP_EXTLUN | 0x12; 9083 scsi_ulto3b(targ_lun_id, 9084 &lun_data->luns[num_filled].lundata[1]); 9085 num_filled++; 9086 } else { 9087 printf("ctl_report_luns: bogus LUN number %jd, " 9088 "skipping\n", (intmax_t)targ_lun_id); 9089 } 9090 /* 9091 * According to SPC-3, rev 14 section 6.21: 9092 * 9093 * "The execution of a REPORT LUNS command to any valid and 9094 * installed logical unit shall clear the REPORTED LUNS DATA 9095 * HAS CHANGED unit attention condition for all logical 9096 * units of that target with respect to the requesting 9097 * initiator. A valid and installed logical unit is one 9098 * having a PERIPHERAL QUALIFIER of 000b in the standard 9099 * INQUIRY data (see 6.4.2)." 9100 * 9101 * If request_lun is NULL, the LUN this report luns command 9102 * was issued to is either disabled or doesn't exist. In that 9103 * case, we shouldn't clear any pending lun change unit 9104 * attention. 9105 */ 9106 if (request_lun != NULL) { 9107 mtx_lock(&lun->lun_lock); 9108 ctl_clr_ua(lun, initidx, CTL_UA_LUN_CHANGE); 9109 mtx_unlock(&lun->lun_lock); 9110 } 9111 } 9112 mtx_unlock(&softc->ctl_lock); 9113 9114 /* 9115 * It's quite possible that we've returned fewer LUNs than we allocated 9116 * space for. Trim it. 9117 */ 9118 lun_datalen = sizeof(*lun_data) + 9119 (num_filled * sizeof(struct scsi_report_luns_lundata)); 9120 9121 if (lun_datalen < alloc_len) { 9122 ctsio->residual = alloc_len - lun_datalen; 9123 ctsio->kern_data_len = lun_datalen; 9124 ctsio->kern_total_len = lun_datalen; 9125 } else { 9126 ctsio->residual = 0; 9127 ctsio->kern_data_len = alloc_len; 9128 ctsio->kern_total_len = alloc_len; 9129 } 9130 ctsio->kern_data_resid = 0; 9131 ctsio->kern_rel_offset = 0; 9132 ctsio->kern_sg_entries = 0; 9133 9134 /* 9135 * We set this to the actual data length, regardless of how much 9136 * space we actually have to return results. If the user looks at 9137 * this value, he'll know whether or not he allocated enough space 9138 * and reissue the command if necessary. We don't support well 9139 * known logical units, so if the user asks for that, return none. 9140 */ 9141 scsi_ulto4b(lun_datalen - 8, lun_data->length); 9142 9143 /* 9144 * We can only return SCSI_STATUS_CHECK_COND when we can't satisfy 9145 * this request. 9146 */ 9147 ctl_set_success(ctsio); 9148 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9149 ctsio->be_move_done = ctl_config_move_done; 9150 ctl_datamove((union ctl_io *)ctsio); 9151 return (retval); 9152} 9153 9154int 9155ctl_request_sense(struct ctl_scsiio *ctsio) 9156{ 9157 struct scsi_request_sense *cdb; 9158 struct scsi_sense_data *sense_ptr; 9159 struct ctl_softc *ctl_softc; 9160 struct ctl_lun *lun; 9161 uint32_t initidx; 9162 int have_error; 9163 scsi_sense_data_type sense_format; 9164 ctl_ua_type ua_type; 9165 9166 cdb = (struct scsi_request_sense *)ctsio->cdb; 9167 9168 ctl_softc = control_softc; 9169 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9170 9171 CTL_DEBUG_PRINT(("ctl_request_sense\n")); 9172 9173 /* 9174 * Determine which sense format the user wants. 9175 */ 9176 if (cdb->byte2 & SRS_DESC) 9177 sense_format = SSD_TYPE_DESC; 9178 else 9179 sense_format = SSD_TYPE_FIXED; 9180 9181 ctsio->kern_data_ptr = malloc(sizeof(*sense_ptr), M_CTL, M_WAITOK); 9182 sense_ptr = (struct scsi_sense_data *)ctsio->kern_data_ptr; 9183 ctsio->kern_sg_entries = 0; 9184 9185 /* 9186 * struct scsi_sense_data, which is currently set to 256 bytes, is 9187 * larger than the largest allowed value for the length field in the 9188 * REQUEST SENSE CDB, which is 252 bytes as of SPC-4. 9189 */ 9190 ctsio->residual = 0; 9191 ctsio->kern_data_len = cdb->length; 9192 ctsio->kern_total_len = cdb->length; 9193 9194 ctsio->kern_data_resid = 0; 9195 ctsio->kern_rel_offset = 0; 9196 ctsio->kern_sg_entries = 0; 9197 9198 /* 9199 * If we don't have a LUN, we don't have any pending sense. 9200 */ 9201 if (lun == NULL) 9202 goto no_sense; 9203 9204 have_error = 0; 9205 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 9206 /* 9207 * Check for pending sense, and then for pending unit attentions. 9208 * Pending sense gets returned first, then pending unit attentions. 9209 */ 9210 mtx_lock(&lun->lun_lock); 9211#ifdef CTL_WITH_CA 9212 if (ctl_is_set(lun->have_ca, initidx)) { 9213 scsi_sense_data_type stored_format; 9214 9215 /* 9216 * Check to see which sense format was used for the stored 9217 * sense data. 9218 */ 9219 stored_format = scsi_sense_type(&lun->pending_sense[initidx]); 9220 9221 /* 9222 * If the user requested a different sense format than the 9223 * one we stored, then we need to convert it to the other 9224 * format. If we're going from descriptor to fixed format 9225 * sense data, we may lose things in translation, depending 9226 * on what options were used. 9227 * 9228 * If the stored format is SSD_TYPE_NONE (i.e. invalid), 9229 * for some reason we'll just copy it out as-is. 9230 */ 9231 if ((stored_format == SSD_TYPE_FIXED) 9232 && (sense_format == SSD_TYPE_DESC)) 9233 ctl_sense_to_desc((struct scsi_sense_data_fixed *) 9234 &lun->pending_sense[initidx], 9235 (struct scsi_sense_data_desc *)sense_ptr); 9236 else if ((stored_format == SSD_TYPE_DESC) 9237 && (sense_format == SSD_TYPE_FIXED)) 9238 ctl_sense_to_fixed((struct scsi_sense_data_desc *) 9239 &lun->pending_sense[initidx], 9240 (struct scsi_sense_data_fixed *)sense_ptr); 9241 else 9242 memcpy(sense_ptr, &lun->pending_sense[initidx], 9243 MIN(sizeof(*sense_ptr), 9244 sizeof(lun->pending_sense[initidx]))); 9245 9246 ctl_clear_mask(lun->have_ca, initidx); 9247 have_error = 1; 9248 } else 9249#endif 9250 { 9251 ua_type = ctl_build_ua(lun, initidx, sense_ptr, sense_format); 9252 if (ua_type != CTL_UA_NONE) 9253 have_error = 1; 9254 if (ua_type == CTL_UA_LUN_CHANGE) { 9255 mtx_unlock(&lun->lun_lock); 9256 mtx_lock(&ctl_softc->ctl_lock); 9257 ctl_clr_ua_allluns(ctl_softc, initidx, ua_type); 9258 mtx_unlock(&ctl_softc->ctl_lock); 9259 mtx_lock(&lun->lun_lock); 9260 } 9261 9262 } 9263 mtx_unlock(&lun->lun_lock); 9264 9265 /* 9266 * We already have a pending error, return it. 9267 */ 9268 if (have_error != 0) { 9269 /* 9270 * We report the SCSI status as OK, since the status of the 9271 * request sense command itself is OK. 9272 * We report 0 for the sense length, because we aren't doing 9273 * autosense in this case. We're reporting sense as 9274 * parameter data. 9275 */ 9276 ctl_set_success(ctsio); 9277 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9278 ctsio->be_move_done = ctl_config_move_done; 9279 ctl_datamove((union ctl_io *)ctsio); 9280 return (CTL_RETVAL_COMPLETE); 9281 } 9282 9283no_sense: 9284 9285 /* 9286 * No sense information to report, so we report that everything is 9287 * okay. 9288 */ 9289 ctl_set_sense_data(sense_ptr, 9290 lun, 9291 sense_format, 9292 /*current_error*/ 1, 9293 /*sense_key*/ SSD_KEY_NO_SENSE, 9294 /*asc*/ 0x00, 9295 /*ascq*/ 0x00, 9296 SSD_ELEM_NONE); 9297 9298 /* 9299 * We report 0 for the sense length, because we aren't doing 9300 * autosense in this case. We're reporting sense as parameter data. 9301 */ 9302 ctl_set_success(ctsio); 9303 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9304 ctsio->be_move_done = ctl_config_move_done; 9305 ctl_datamove((union ctl_io *)ctsio); 9306 return (CTL_RETVAL_COMPLETE); 9307} 9308 9309int 9310ctl_tur(struct ctl_scsiio *ctsio) 9311{ 9312 9313 CTL_DEBUG_PRINT(("ctl_tur\n")); 9314 9315 ctl_set_success(ctsio); 9316 ctl_done((union ctl_io *)ctsio); 9317 9318 return (CTL_RETVAL_COMPLETE); 9319} 9320 9321/* 9322 * SCSI VPD page 0x00, the Supported VPD Pages page. 9323 */ 9324static int 9325ctl_inquiry_evpd_supported(struct ctl_scsiio *ctsio, int alloc_len) 9326{ 9327 struct scsi_vpd_supported_pages *pages; 9328 int sup_page_size; 9329 struct ctl_lun *lun; 9330 int p; 9331 9332 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9333 9334 sup_page_size = sizeof(struct scsi_vpd_supported_pages) * 9335 SCSI_EVPD_NUM_SUPPORTED_PAGES; 9336 ctsio->kern_data_ptr = malloc(sup_page_size, M_CTL, M_WAITOK | M_ZERO); 9337 pages = (struct scsi_vpd_supported_pages *)ctsio->kern_data_ptr; 9338 ctsio->kern_sg_entries = 0; 9339 9340 if (sup_page_size < alloc_len) { 9341 ctsio->residual = alloc_len - sup_page_size; 9342 ctsio->kern_data_len = sup_page_size; 9343 ctsio->kern_total_len = sup_page_size; 9344 } else { 9345 ctsio->residual = 0; 9346 ctsio->kern_data_len = alloc_len; 9347 ctsio->kern_total_len = alloc_len; 9348 } 9349 ctsio->kern_data_resid = 0; 9350 ctsio->kern_rel_offset = 0; 9351 ctsio->kern_sg_entries = 0; 9352 9353 /* 9354 * The control device is always connected. The disk device, on the 9355 * other hand, may not be online all the time. Need to change this 9356 * to figure out whether the disk device is actually online or not. 9357 */ 9358 if (lun != NULL) 9359 pages->device = (SID_QUAL_LU_CONNECTED << 5) | 9360 lun->be_lun->lun_type; 9361 else 9362 pages->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9363 9364 p = 0; 9365 /* Supported VPD pages */ 9366 pages->page_list[p++] = SVPD_SUPPORTED_PAGES; 9367 /* Serial Number */ 9368 pages->page_list[p++] = SVPD_UNIT_SERIAL_NUMBER; 9369 /* Device Identification */ 9370 pages->page_list[p++] = SVPD_DEVICE_ID; 9371 /* Extended INQUIRY Data */ 9372 pages->page_list[p++] = SVPD_EXTENDED_INQUIRY_DATA; 9373 /* Mode Page Policy */ 9374 pages->page_list[p++] = SVPD_MODE_PAGE_POLICY; 9375 /* SCSI Ports */ 9376 pages->page_list[p++] = SVPD_SCSI_PORTS; 9377 /* Third-party Copy */ 9378 pages->page_list[p++] = SVPD_SCSI_TPC; 9379 if (lun != NULL && lun->be_lun->lun_type == T_DIRECT) { 9380 /* Block limits */ 9381 pages->page_list[p++] = SVPD_BLOCK_LIMITS; 9382 /* Block Device Characteristics */ 9383 pages->page_list[p++] = SVPD_BDC; 9384 /* Logical Block Provisioning */ 9385 pages->page_list[p++] = SVPD_LBP; 9386 } 9387 pages->length = p; 9388 9389 ctl_set_success(ctsio); 9390 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9391 ctsio->be_move_done = ctl_config_move_done; 9392 ctl_datamove((union ctl_io *)ctsio); 9393 return (CTL_RETVAL_COMPLETE); 9394} 9395 9396/* 9397 * SCSI VPD page 0x80, the Unit Serial Number page. 9398 */ 9399static int 9400ctl_inquiry_evpd_serial(struct ctl_scsiio *ctsio, int alloc_len) 9401{ 9402 struct scsi_vpd_unit_serial_number *sn_ptr; 9403 struct ctl_lun *lun; 9404 int data_len; 9405 9406 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9407 9408 data_len = 4 + CTL_SN_LEN; 9409 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9410 sn_ptr = (struct scsi_vpd_unit_serial_number *)ctsio->kern_data_ptr; 9411 if (data_len < alloc_len) { 9412 ctsio->residual = alloc_len - data_len; 9413 ctsio->kern_data_len = data_len; 9414 ctsio->kern_total_len = data_len; 9415 } else { 9416 ctsio->residual = 0; 9417 ctsio->kern_data_len = alloc_len; 9418 ctsio->kern_total_len = alloc_len; 9419 } 9420 ctsio->kern_data_resid = 0; 9421 ctsio->kern_rel_offset = 0; 9422 ctsio->kern_sg_entries = 0; 9423 9424 /* 9425 * The control device is always connected. The disk device, on the 9426 * other hand, may not be online all the time. Need to change this 9427 * to figure out whether the disk device is actually online or not. 9428 */ 9429 if (lun != NULL) 9430 sn_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9431 lun->be_lun->lun_type; 9432 else 9433 sn_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9434 9435 sn_ptr->page_code = SVPD_UNIT_SERIAL_NUMBER; 9436 sn_ptr->length = CTL_SN_LEN; 9437 /* 9438 * If we don't have a LUN, we just leave the serial number as 9439 * all spaces. 9440 */ 9441 if (lun != NULL) { 9442 strncpy((char *)sn_ptr->serial_num, 9443 (char *)lun->be_lun->serial_num, CTL_SN_LEN); 9444 } else 9445 memset(sn_ptr->serial_num, 0x20, CTL_SN_LEN); 9446 9447 ctl_set_success(ctsio); 9448 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9449 ctsio->be_move_done = ctl_config_move_done; 9450 ctl_datamove((union ctl_io *)ctsio); 9451 return (CTL_RETVAL_COMPLETE); 9452} 9453 9454 9455/* 9456 * SCSI VPD page 0x86, the Extended INQUIRY Data page. 9457 */ 9458static int 9459ctl_inquiry_evpd_eid(struct ctl_scsiio *ctsio, int alloc_len) 9460{ 9461 struct scsi_vpd_extended_inquiry_data *eid_ptr; 9462 struct ctl_lun *lun; 9463 int data_len; 9464 9465 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9466 9467 data_len = sizeof(struct scsi_vpd_extended_inquiry_data); 9468 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9469 eid_ptr = (struct scsi_vpd_extended_inquiry_data *)ctsio->kern_data_ptr; 9470 ctsio->kern_sg_entries = 0; 9471 9472 if (data_len < alloc_len) { 9473 ctsio->residual = alloc_len - data_len; 9474 ctsio->kern_data_len = data_len; 9475 ctsio->kern_total_len = data_len; 9476 } else { 9477 ctsio->residual = 0; 9478 ctsio->kern_data_len = alloc_len; 9479 ctsio->kern_total_len = alloc_len; 9480 } 9481 ctsio->kern_data_resid = 0; 9482 ctsio->kern_rel_offset = 0; 9483 ctsio->kern_sg_entries = 0; 9484 9485 /* 9486 * The control device is always connected. The disk device, on the 9487 * other hand, may not be online all the time. 9488 */ 9489 if (lun != NULL) 9490 eid_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9491 lun->be_lun->lun_type; 9492 else 9493 eid_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9494 eid_ptr->page_code = SVPD_EXTENDED_INQUIRY_DATA; 9495 scsi_ulto2b(data_len - 4, eid_ptr->page_length); 9496 /* 9497 * We support head of queue, ordered and simple tags. 9498 */ 9499 eid_ptr->flags2 = SVPD_EID_HEADSUP | SVPD_EID_ORDSUP | SVPD_EID_SIMPSUP; 9500 /* 9501 * Volatile cache supported. 9502 */ 9503 eid_ptr->flags3 = SVPD_EID_V_SUP; 9504 9505 /* 9506 * This means that we clear the REPORTED LUNS DATA HAS CHANGED unit 9507 * attention for a particular IT nexus on all LUNs once we report 9508 * it to that nexus once. This bit is required as of SPC-4. 9509 */ 9510 eid_ptr->flags4 = SVPD_EID_LUICLT; 9511 9512 /* 9513 * XXX KDM in order to correctly answer this, we would need 9514 * information from the SIM to determine how much sense data it 9515 * can send. So this would really be a path inquiry field, most 9516 * likely. This can be set to a maximum of 252 according to SPC-4, 9517 * but the hardware may or may not be able to support that much. 9518 * 0 just means that the maximum sense data length is not reported. 9519 */ 9520 eid_ptr->max_sense_length = 0; 9521 9522 ctl_set_success(ctsio); 9523 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9524 ctsio->be_move_done = ctl_config_move_done; 9525 ctl_datamove((union ctl_io *)ctsio); 9526 return (CTL_RETVAL_COMPLETE); 9527} 9528 9529static int 9530ctl_inquiry_evpd_mpp(struct ctl_scsiio *ctsio, int alloc_len) 9531{ 9532 struct scsi_vpd_mode_page_policy *mpp_ptr; 9533 struct ctl_lun *lun; 9534 int data_len; 9535 9536 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9537 9538 data_len = sizeof(struct scsi_vpd_mode_page_policy) + 9539 sizeof(struct scsi_vpd_mode_page_policy_descr); 9540 9541 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9542 mpp_ptr = (struct scsi_vpd_mode_page_policy *)ctsio->kern_data_ptr; 9543 ctsio->kern_sg_entries = 0; 9544 9545 if (data_len < alloc_len) { 9546 ctsio->residual = alloc_len - data_len; 9547 ctsio->kern_data_len = data_len; 9548 ctsio->kern_total_len = data_len; 9549 } else { 9550 ctsio->residual = 0; 9551 ctsio->kern_data_len = alloc_len; 9552 ctsio->kern_total_len = alloc_len; 9553 } 9554 ctsio->kern_data_resid = 0; 9555 ctsio->kern_rel_offset = 0; 9556 ctsio->kern_sg_entries = 0; 9557 9558 /* 9559 * The control device is always connected. The disk device, on the 9560 * other hand, may not be online all the time. 9561 */ 9562 if (lun != NULL) 9563 mpp_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9564 lun->be_lun->lun_type; 9565 else 9566 mpp_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9567 mpp_ptr->page_code = SVPD_MODE_PAGE_POLICY; 9568 scsi_ulto2b(data_len - 4, mpp_ptr->page_length); 9569 mpp_ptr->descr[0].page_code = 0x3f; 9570 mpp_ptr->descr[0].subpage_code = 0xff; 9571 mpp_ptr->descr[0].policy = SVPD_MPP_SHARED; 9572 9573 ctl_set_success(ctsio); 9574 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9575 ctsio->be_move_done = ctl_config_move_done; 9576 ctl_datamove((union ctl_io *)ctsio); 9577 return (CTL_RETVAL_COMPLETE); 9578} 9579 9580/* 9581 * SCSI VPD page 0x83, the Device Identification page. 9582 */ 9583static int 9584ctl_inquiry_evpd_devid(struct ctl_scsiio *ctsio, int alloc_len) 9585{ 9586 struct scsi_vpd_device_id *devid_ptr; 9587 struct scsi_vpd_id_descriptor *desc; 9588 struct ctl_softc *softc; 9589 struct ctl_lun *lun; 9590 struct ctl_port *port; 9591 int data_len; 9592 uint8_t proto; 9593 9594 softc = control_softc; 9595 9596 port = ctl_io_port(&ctsio->io_hdr); 9597 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9598 9599 data_len = sizeof(struct scsi_vpd_device_id) + 9600 sizeof(struct scsi_vpd_id_descriptor) + 9601 sizeof(struct scsi_vpd_id_rel_trgt_port_id) + 9602 sizeof(struct scsi_vpd_id_descriptor) + 9603 sizeof(struct scsi_vpd_id_trgt_port_grp_id); 9604 if (lun && lun->lun_devid) 9605 data_len += lun->lun_devid->len; 9606 if (port && port->port_devid) 9607 data_len += port->port_devid->len; 9608 if (port && port->target_devid) 9609 data_len += port->target_devid->len; 9610 9611 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9612 devid_ptr = (struct scsi_vpd_device_id *)ctsio->kern_data_ptr; 9613 ctsio->kern_sg_entries = 0; 9614 9615 if (data_len < alloc_len) { 9616 ctsio->residual = alloc_len - data_len; 9617 ctsio->kern_data_len = data_len; 9618 ctsio->kern_total_len = data_len; 9619 } else { 9620 ctsio->residual = 0; 9621 ctsio->kern_data_len = alloc_len; 9622 ctsio->kern_total_len = alloc_len; 9623 } 9624 ctsio->kern_data_resid = 0; 9625 ctsio->kern_rel_offset = 0; 9626 ctsio->kern_sg_entries = 0; 9627 9628 /* 9629 * The control device is always connected. The disk device, on the 9630 * other hand, may not be online all the time. 9631 */ 9632 if (lun != NULL) 9633 devid_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9634 lun->be_lun->lun_type; 9635 else 9636 devid_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9637 devid_ptr->page_code = SVPD_DEVICE_ID; 9638 scsi_ulto2b(data_len - 4, devid_ptr->length); 9639 9640 if (port && port->port_type == CTL_PORT_FC) 9641 proto = SCSI_PROTO_FC << 4; 9642 else if (port && port->port_type == CTL_PORT_ISCSI) 9643 proto = SCSI_PROTO_ISCSI << 4; 9644 else 9645 proto = SCSI_PROTO_SPI << 4; 9646 desc = (struct scsi_vpd_id_descriptor *)devid_ptr->desc_list; 9647 9648 /* 9649 * We're using a LUN association here. i.e., this device ID is a 9650 * per-LUN identifier. 9651 */ 9652 if (lun && lun->lun_devid) { 9653 memcpy(desc, lun->lun_devid->data, lun->lun_devid->len); 9654 desc = (struct scsi_vpd_id_descriptor *)((uint8_t *)desc + 9655 lun->lun_devid->len); 9656 } 9657 9658 /* 9659 * This is for the WWPN which is a port association. 9660 */ 9661 if (port && port->port_devid) { 9662 memcpy(desc, port->port_devid->data, port->port_devid->len); 9663 desc = (struct scsi_vpd_id_descriptor *)((uint8_t *)desc + 9664 port->port_devid->len); 9665 } 9666 9667 /* 9668 * This is for the Relative Target Port(type 4h) identifier 9669 */ 9670 desc->proto_codeset = proto | SVPD_ID_CODESET_BINARY; 9671 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_PORT | 9672 SVPD_ID_TYPE_RELTARG; 9673 desc->length = 4; 9674 scsi_ulto2b(ctsio->io_hdr.nexus.targ_port, &desc->identifier[2]); 9675 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 9676 sizeof(struct scsi_vpd_id_rel_trgt_port_id)); 9677 9678 /* 9679 * This is for the Target Port Group(type 5h) identifier 9680 */ 9681 desc->proto_codeset = proto | SVPD_ID_CODESET_BINARY; 9682 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_PORT | 9683 SVPD_ID_TYPE_TPORTGRP; 9684 desc->length = 4; 9685 scsi_ulto2b(ctsio->io_hdr.nexus.targ_port / softc->port_cnt + 1, 9686 &desc->identifier[2]); 9687 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 9688 sizeof(struct scsi_vpd_id_trgt_port_grp_id)); 9689 9690 /* 9691 * This is for the Target identifier 9692 */ 9693 if (port && port->target_devid) { 9694 memcpy(desc, port->target_devid->data, port->target_devid->len); 9695 } 9696 9697 ctl_set_success(ctsio); 9698 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9699 ctsio->be_move_done = ctl_config_move_done; 9700 ctl_datamove((union ctl_io *)ctsio); 9701 return (CTL_RETVAL_COMPLETE); 9702} 9703 9704static int 9705ctl_inquiry_evpd_scsi_ports(struct ctl_scsiio *ctsio, int alloc_len) 9706{ 9707 struct ctl_softc *softc = control_softc; 9708 struct scsi_vpd_scsi_ports *sp; 9709 struct scsi_vpd_port_designation *pd; 9710 struct scsi_vpd_port_designation_cont *pdc; 9711 struct ctl_lun *lun; 9712 struct ctl_port *port; 9713 int data_len, num_target_ports, iid_len, id_len; 9714 9715 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9716 9717 num_target_ports = 0; 9718 iid_len = 0; 9719 id_len = 0; 9720 mtx_lock(&softc->ctl_lock); 9721 STAILQ_FOREACH(port, &softc->port_list, links) { 9722 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 9723 continue; 9724 if (lun != NULL && 9725 ctl_lun_map_to_port(port, lun->lun) >= CTL_MAX_LUNS) 9726 continue; 9727 num_target_ports++; 9728 if (port->init_devid) 9729 iid_len += port->init_devid->len; 9730 if (port->port_devid) 9731 id_len += port->port_devid->len; 9732 } 9733 mtx_unlock(&softc->ctl_lock); 9734 9735 data_len = sizeof(struct scsi_vpd_scsi_ports) + 9736 num_target_ports * (sizeof(struct scsi_vpd_port_designation) + 9737 sizeof(struct scsi_vpd_port_designation_cont)) + iid_len + id_len; 9738 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9739 sp = (struct scsi_vpd_scsi_ports *)ctsio->kern_data_ptr; 9740 ctsio->kern_sg_entries = 0; 9741 9742 if (data_len < alloc_len) { 9743 ctsio->residual = alloc_len - data_len; 9744 ctsio->kern_data_len = data_len; 9745 ctsio->kern_total_len = data_len; 9746 } else { 9747 ctsio->residual = 0; 9748 ctsio->kern_data_len = alloc_len; 9749 ctsio->kern_total_len = alloc_len; 9750 } 9751 ctsio->kern_data_resid = 0; 9752 ctsio->kern_rel_offset = 0; 9753 ctsio->kern_sg_entries = 0; 9754 9755 /* 9756 * The control device is always connected. The disk device, on the 9757 * other hand, may not be online all the time. Need to change this 9758 * to figure out whether the disk device is actually online or not. 9759 */ 9760 if (lun != NULL) 9761 sp->device = (SID_QUAL_LU_CONNECTED << 5) | 9762 lun->be_lun->lun_type; 9763 else 9764 sp->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9765 9766 sp->page_code = SVPD_SCSI_PORTS; 9767 scsi_ulto2b(data_len - sizeof(struct scsi_vpd_scsi_ports), 9768 sp->page_length); 9769 pd = &sp->design[0]; 9770 9771 mtx_lock(&softc->ctl_lock); 9772 STAILQ_FOREACH(port, &softc->port_list, links) { 9773 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 9774 continue; 9775 if (lun != NULL && 9776 ctl_lun_map_to_port(port, lun->lun) >= CTL_MAX_LUNS) 9777 continue; 9778 scsi_ulto2b(port->targ_port, pd->relative_port_id); 9779 if (port->init_devid) { 9780 iid_len = port->init_devid->len; 9781 memcpy(pd->initiator_transportid, 9782 port->init_devid->data, port->init_devid->len); 9783 } else 9784 iid_len = 0; 9785 scsi_ulto2b(iid_len, pd->initiator_transportid_length); 9786 pdc = (struct scsi_vpd_port_designation_cont *) 9787 (&pd->initiator_transportid[iid_len]); 9788 if (port->port_devid) { 9789 id_len = port->port_devid->len; 9790 memcpy(pdc->target_port_descriptors, 9791 port->port_devid->data, port->port_devid->len); 9792 } else 9793 id_len = 0; 9794 scsi_ulto2b(id_len, pdc->target_port_descriptors_length); 9795 pd = (struct scsi_vpd_port_designation *) 9796 ((uint8_t *)pdc->target_port_descriptors + id_len); 9797 } 9798 mtx_unlock(&softc->ctl_lock); 9799 9800 ctl_set_success(ctsio); 9801 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9802 ctsio->be_move_done = ctl_config_move_done; 9803 ctl_datamove((union ctl_io *)ctsio); 9804 return (CTL_RETVAL_COMPLETE); 9805} 9806 9807static int 9808ctl_inquiry_evpd_block_limits(struct ctl_scsiio *ctsio, int alloc_len) 9809{ 9810 struct scsi_vpd_block_limits *bl_ptr; 9811 struct ctl_lun *lun; 9812 9813 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9814 9815 ctsio->kern_data_ptr = malloc(sizeof(*bl_ptr), M_CTL, M_WAITOK | M_ZERO); 9816 bl_ptr = (struct scsi_vpd_block_limits *)ctsio->kern_data_ptr; 9817 ctsio->kern_sg_entries = 0; 9818 9819 if (sizeof(*bl_ptr) < alloc_len) { 9820 ctsio->residual = alloc_len - sizeof(*bl_ptr); 9821 ctsio->kern_data_len = sizeof(*bl_ptr); 9822 ctsio->kern_total_len = sizeof(*bl_ptr); 9823 } else { 9824 ctsio->residual = 0; 9825 ctsio->kern_data_len = alloc_len; 9826 ctsio->kern_total_len = alloc_len; 9827 } 9828 ctsio->kern_data_resid = 0; 9829 ctsio->kern_rel_offset = 0; 9830 ctsio->kern_sg_entries = 0; 9831 9832 /* 9833 * The control device is always connected. The disk device, on the 9834 * other hand, may not be online all the time. Need to change this 9835 * to figure out whether the disk device is actually online or not. 9836 */ 9837 if (lun != NULL) 9838 bl_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9839 lun->be_lun->lun_type; 9840 else 9841 bl_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9842 9843 bl_ptr->page_code = SVPD_BLOCK_LIMITS; 9844 scsi_ulto2b(sizeof(*bl_ptr) - 4, bl_ptr->page_length); 9845 bl_ptr->max_cmp_write_len = 0xff; 9846 scsi_ulto4b(0xffffffff, bl_ptr->max_txfer_len); 9847 if (lun != NULL) { 9848 scsi_ulto4b(lun->be_lun->opttxferlen, bl_ptr->opt_txfer_len); 9849 if (lun->be_lun->flags & CTL_LUN_FLAG_UNMAP) { 9850 scsi_ulto4b(0xffffffff, bl_ptr->max_unmap_lba_cnt); 9851 scsi_ulto4b(0xffffffff, bl_ptr->max_unmap_blk_cnt); 9852 if (lun->be_lun->ublockexp != 0) { 9853 scsi_ulto4b((1 << lun->be_lun->ublockexp), 9854 bl_ptr->opt_unmap_grain); 9855 scsi_ulto4b(0x80000000 | lun->be_lun->ublockoff, 9856 bl_ptr->unmap_grain_align); 9857 } 9858 } 9859 scsi_ulto4b(lun->be_lun->atomicblock, 9860 bl_ptr->max_atomic_transfer_length); 9861 scsi_ulto4b(0, bl_ptr->atomic_alignment); 9862 scsi_ulto4b(0, bl_ptr->atomic_transfer_length_granularity); 9863 scsi_ulto4b(0, bl_ptr->max_atomic_transfer_length_with_atomic_boundary); 9864 scsi_ulto4b(0, bl_ptr->max_atomic_boundary_size); 9865 } 9866 scsi_u64to8b(UINT64_MAX, bl_ptr->max_write_same_length); 9867 9868 ctl_set_success(ctsio); 9869 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9870 ctsio->be_move_done = ctl_config_move_done; 9871 ctl_datamove((union ctl_io *)ctsio); 9872 return (CTL_RETVAL_COMPLETE); 9873} 9874 9875static int 9876ctl_inquiry_evpd_bdc(struct ctl_scsiio *ctsio, int alloc_len) 9877{ 9878 struct scsi_vpd_block_device_characteristics *bdc_ptr; 9879 struct ctl_lun *lun; 9880 const char *value; 9881 u_int i; 9882 9883 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9884 9885 ctsio->kern_data_ptr = malloc(sizeof(*bdc_ptr), M_CTL, M_WAITOK | M_ZERO); 9886 bdc_ptr = (struct scsi_vpd_block_device_characteristics *)ctsio->kern_data_ptr; 9887 ctsio->kern_sg_entries = 0; 9888 9889 if (sizeof(*bdc_ptr) < alloc_len) { 9890 ctsio->residual = alloc_len - sizeof(*bdc_ptr); 9891 ctsio->kern_data_len = sizeof(*bdc_ptr); 9892 ctsio->kern_total_len = sizeof(*bdc_ptr); 9893 } else { 9894 ctsio->residual = 0; 9895 ctsio->kern_data_len = alloc_len; 9896 ctsio->kern_total_len = alloc_len; 9897 } 9898 ctsio->kern_data_resid = 0; 9899 ctsio->kern_rel_offset = 0; 9900 ctsio->kern_sg_entries = 0; 9901 9902 /* 9903 * The control device is always connected. The disk device, on the 9904 * other hand, may not be online all the time. Need to change this 9905 * to figure out whether the disk device is actually online or not. 9906 */ 9907 if (lun != NULL) 9908 bdc_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9909 lun->be_lun->lun_type; 9910 else 9911 bdc_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9912 bdc_ptr->page_code = SVPD_BDC; 9913 scsi_ulto2b(sizeof(*bdc_ptr) - 4, bdc_ptr->page_length); 9914 if (lun != NULL && 9915 (value = ctl_get_opt(&lun->be_lun->options, "rpm")) != NULL) 9916 i = strtol(value, NULL, 0); 9917 else 9918 i = CTL_DEFAULT_ROTATION_RATE; 9919 scsi_ulto2b(i, bdc_ptr->medium_rotation_rate); 9920 if (lun != NULL && 9921 (value = ctl_get_opt(&lun->be_lun->options, "formfactor")) != NULL) 9922 i = strtol(value, NULL, 0); 9923 else 9924 i = 0; 9925 bdc_ptr->wab_wac_ff = (i & 0x0f); 9926 bdc_ptr->flags = SVPD_FUAB | SVPD_VBULS; 9927 9928 ctl_set_success(ctsio); 9929 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9930 ctsio->be_move_done = ctl_config_move_done; 9931 ctl_datamove((union ctl_io *)ctsio); 9932 return (CTL_RETVAL_COMPLETE); 9933} 9934 9935static int 9936ctl_inquiry_evpd_lbp(struct ctl_scsiio *ctsio, int alloc_len) 9937{ 9938 struct scsi_vpd_logical_block_prov *lbp_ptr; 9939 struct ctl_lun *lun; 9940 9941 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9942 9943 ctsio->kern_data_ptr = malloc(sizeof(*lbp_ptr), M_CTL, M_WAITOK | M_ZERO); 9944 lbp_ptr = (struct scsi_vpd_logical_block_prov *)ctsio->kern_data_ptr; 9945 ctsio->kern_sg_entries = 0; 9946 9947 if (sizeof(*lbp_ptr) < alloc_len) { 9948 ctsio->residual = alloc_len - sizeof(*lbp_ptr); 9949 ctsio->kern_data_len = sizeof(*lbp_ptr); 9950 ctsio->kern_total_len = sizeof(*lbp_ptr); 9951 } else { 9952 ctsio->residual = 0; 9953 ctsio->kern_data_len = alloc_len; 9954 ctsio->kern_total_len = alloc_len; 9955 } 9956 ctsio->kern_data_resid = 0; 9957 ctsio->kern_rel_offset = 0; 9958 ctsio->kern_sg_entries = 0; 9959 9960 /* 9961 * The control device is always connected. The disk device, on the 9962 * other hand, may not be online all the time. Need to change this 9963 * to figure out whether the disk device is actually online or not. 9964 */ 9965 if (lun != NULL) 9966 lbp_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9967 lun->be_lun->lun_type; 9968 else 9969 lbp_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9970 9971 lbp_ptr->page_code = SVPD_LBP; 9972 scsi_ulto2b(sizeof(*lbp_ptr) - 4, lbp_ptr->page_length); 9973 lbp_ptr->threshold_exponent = CTL_LBP_EXPONENT; 9974 if (lun != NULL && lun->be_lun->flags & CTL_LUN_FLAG_UNMAP) { 9975 lbp_ptr->flags = SVPD_LBP_UNMAP | SVPD_LBP_WS16 | 9976 SVPD_LBP_WS10 | SVPD_LBP_RZ | SVPD_LBP_ANC_SUP; 9977 lbp_ptr->prov_type = SVPD_LBP_THIN; 9978 } 9979 9980 ctl_set_success(ctsio); 9981 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9982 ctsio->be_move_done = ctl_config_move_done; 9983 ctl_datamove((union ctl_io *)ctsio); 9984 return (CTL_RETVAL_COMPLETE); 9985} 9986 9987/* 9988 * INQUIRY with the EVPD bit set. 9989 */ 9990static int 9991ctl_inquiry_evpd(struct ctl_scsiio *ctsio) 9992{ 9993 struct ctl_lun *lun; 9994 struct scsi_inquiry *cdb; 9995 int alloc_len, retval; 9996 9997 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9998 cdb = (struct scsi_inquiry *)ctsio->cdb; 9999 alloc_len = scsi_2btoul(cdb->length); 10000 10001 switch (cdb->page_code) { 10002 case SVPD_SUPPORTED_PAGES: 10003 retval = ctl_inquiry_evpd_supported(ctsio, alloc_len); 10004 break; 10005 case SVPD_UNIT_SERIAL_NUMBER: 10006 retval = ctl_inquiry_evpd_serial(ctsio, alloc_len); 10007 break; 10008 case SVPD_DEVICE_ID: 10009 retval = ctl_inquiry_evpd_devid(ctsio, alloc_len); 10010 break; 10011 case SVPD_EXTENDED_INQUIRY_DATA: 10012 retval = ctl_inquiry_evpd_eid(ctsio, alloc_len); 10013 break; 10014 case SVPD_MODE_PAGE_POLICY: 10015 retval = ctl_inquiry_evpd_mpp(ctsio, alloc_len); 10016 break; 10017 case SVPD_SCSI_PORTS: 10018 retval = ctl_inquiry_evpd_scsi_ports(ctsio, alloc_len); 10019 break; 10020 case SVPD_SCSI_TPC: 10021 retval = ctl_inquiry_evpd_tpc(ctsio, alloc_len); 10022 break; 10023 case SVPD_BLOCK_LIMITS: 10024 if (lun == NULL || lun->be_lun->lun_type != T_DIRECT) 10025 goto err; 10026 retval = ctl_inquiry_evpd_block_limits(ctsio, alloc_len); 10027 break; 10028 case SVPD_BDC: 10029 if (lun == NULL || lun->be_lun->lun_type != T_DIRECT) 10030 goto err; 10031 retval = ctl_inquiry_evpd_bdc(ctsio, alloc_len); 10032 break; 10033 case SVPD_LBP: 10034 if (lun == NULL || lun->be_lun->lun_type != T_DIRECT) 10035 goto err; 10036 retval = ctl_inquiry_evpd_lbp(ctsio, alloc_len); 10037 break; 10038 default: 10039err: 10040 ctl_set_invalid_field(ctsio, 10041 /*sks_valid*/ 1, 10042 /*command*/ 1, 10043 /*field*/ 2, 10044 /*bit_valid*/ 0, 10045 /*bit*/ 0); 10046 ctl_done((union ctl_io *)ctsio); 10047 retval = CTL_RETVAL_COMPLETE; 10048 break; 10049 } 10050 10051 return (retval); 10052} 10053 10054/* 10055 * Standard INQUIRY data. 10056 */ 10057static int 10058ctl_inquiry_std(struct ctl_scsiio *ctsio) 10059{ 10060 struct scsi_inquiry_data *inq_ptr; 10061 struct scsi_inquiry *cdb; 10062 struct ctl_softc *softc = control_softc; 10063 struct ctl_port *port; 10064 struct ctl_lun *lun; 10065 char *val; 10066 uint32_t alloc_len, data_len; 10067 ctl_port_type port_type; 10068 10069 port = ctl_io_port(&ctsio->io_hdr); 10070 port_type = port->port_type; 10071 if (port_type == CTL_PORT_IOCTL || port_type == CTL_PORT_INTERNAL) 10072 port_type = CTL_PORT_SCSI; 10073 10074 lun = ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10075 cdb = (struct scsi_inquiry *)ctsio->cdb; 10076 alloc_len = scsi_2btoul(cdb->length); 10077 10078 /* 10079 * We malloc the full inquiry data size here and fill it 10080 * in. If the user only asks for less, we'll give him 10081 * that much. 10082 */ 10083 data_len = offsetof(struct scsi_inquiry_data, vendor_specific1); 10084 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 10085 inq_ptr = (struct scsi_inquiry_data *)ctsio->kern_data_ptr; 10086 ctsio->kern_sg_entries = 0; 10087 ctsio->kern_data_resid = 0; 10088 ctsio->kern_rel_offset = 0; 10089 10090 if (data_len < alloc_len) { 10091 ctsio->residual = alloc_len - data_len; 10092 ctsio->kern_data_len = data_len; 10093 ctsio->kern_total_len = data_len; 10094 } else { 10095 ctsio->residual = 0; 10096 ctsio->kern_data_len = alloc_len; 10097 ctsio->kern_total_len = alloc_len; 10098 } 10099 10100 if (lun != NULL) { 10101 if ((lun->flags & CTL_LUN_PRIMARY_SC) || 10102 softc->ha_link >= CTL_HA_LINK_UNKNOWN) { 10103 inq_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10104 lun->be_lun->lun_type; 10105 } else { 10106 inq_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | 10107 lun->be_lun->lun_type; 10108 } 10109 if (lun->flags & CTL_LUN_REMOVABLE) 10110 inq_ptr->dev_qual2 |= SID_RMB; 10111 } else 10112 inq_ptr->device = (SID_QUAL_BAD_LU << 5) | T_NODEVICE; 10113 10114 /* RMB in byte 2 is 0 */ 10115 inq_ptr->version = SCSI_REV_SPC4; 10116 10117 /* 10118 * According to SAM-3, even if a device only supports a single 10119 * level of LUN addressing, it should still set the HISUP bit: 10120 * 10121 * 4.9.1 Logical unit numbers overview 10122 * 10123 * All logical unit number formats described in this standard are 10124 * hierarchical in structure even when only a single level in that 10125 * hierarchy is used. The HISUP bit shall be set to one in the 10126 * standard INQUIRY data (see SPC-2) when any logical unit number 10127 * format described in this standard is used. Non-hierarchical 10128 * formats are outside the scope of this standard. 10129 * 10130 * Therefore we set the HiSup bit here. 10131 * 10132 * The reponse format is 2, per SPC-3. 10133 */ 10134 inq_ptr->response_format = SID_HiSup | 2; 10135 10136 inq_ptr->additional_length = data_len - 10137 (offsetof(struct scsi_inquiry_data, additional_length) + 1); 10138 CTL_DEBUG_PRINT(("additional_length = %d\n", 10139 inq_ptr->additional_length)); 10140 10141 inq_ptr->spc3_flags = SPC3_SID_3PC | SPC3_SID_TPGS_IMPLICIT; 10142 if (port_type == CTL_PORT_SCSI) 10143 inq_ptr->spc2_flags = SPC2_SID_ADDR16; 10144 inq_ptr->spc2_flags |= SPC2_SID_MultiP; 10145 inq_ptr->flags = SID_CmdQue; 10146 if (port_type == CTL_PORT_SCSI) 10147 inq_ptr->flags |= SID_WBus16 | SID_Sync; 10148 10149 /* 10150 * Per SPC-3, unused bytes in ASCII strings are filled with spaces. 10151 * We have 8 bytes for the vendor name, and 16 bytes for the device 10152 * name and 4 bytes for the revision. 10153 */ 10154 if (lun == NULL || (val = ctl_get_opt(&lun->be_lun->options, 10155 "vendor")) == NULL) { 10156 strncpy(inq_ptr->vendor, CTL_VENDOR, sizeof(inq_ptr->vendor)); 10157 } else { 10158 memset(inq_ptr->vendor, ' ', sizeof(inq_ptr->vendor)); 10159 strncpy(inq_ptr->vendor, val, 10160 min(sizeof(inq_ptr->vendor), strlen(val))); 10161 } 10162 if (lun == NULL) { 10163 strncpy(inq_ptr->product, CTL_DIRECT_PRODUCT, 10164 sizeof(inq_ptr->product)); 10165 } else if ((val = ctl_get_opt(&lun->be_lun->options, "product")) == NULL) { 10166 switch (lun->be_lun->lun_type) { 10167 case T_DIRECT: 10168 strncpy(inq_ptr->product, CTL_DIRECT_PRODUCT, 10169 sizeof(inq_ptr->product)); 10170 break; 10171 case T_PROCESSOR: 10172 strncpy(inq_ptr->product, CTL_PROCESSOR_PRODUCT, 10173 sizeof(inq_ptr->product)); 10174 break; 10175 case T_CDROM: 10176 strncpy(inq_ptr->product, CTL_CDROM_PRODUCT, 10177 sizeof(inq_ptr->product)); 10178 break; 10179 default: 10180 strncpy(inq_ptr->product, CTL_UNKNOWN_PRODUCT, 10181 sizeof(inq_ptr->product)); 10182 break; 10183 } 10184 } else { 10185 memset(inq_ptr->product, ' ', sizeof(inq_ptr->product)); 10186 strncpy(inq_ptr->product, val, 10187 min(sizeof(inq_ptr->product), strlen(val))); 10188 } 10189 10190 /* 10191 * XXX make this a macro somewhere so it automatically gets 10192 * incremented when we make changes. 10193 */ 10194 if (lun == NULL || (val = ctl_get_opt(&lun->be_lun->options, 10195 "revision")) == NULL) { 10196 strncpy(inq_ptr->revision, "0001", sizeof(inq_ptr->revision)); 10197 } else { 10198 memset(inq_ptr->revision, ' ', sizeof(inq_ptr->revision)); 10199 strncpy(inq_ptr->revision, val, 10200 min(sizeof(inq_ptr->revision), strlen(val))); 10201 } 10202 10203 /* 10204 * For parallel SCSI, we support double transition and single 10205 * transition clocking. We also support QAS (Quick Arbitration 10206 * and Selection) and Information Unit transfers on both the 10207 * control and array devices. 10208 */ 10209 if (port_type == CTL_PORT_SCSI) 10210 inq_ptr->spi3data = SID_SPI_CLOCK_DT_ST | SID_SPI_QAS | 10211 SID_SPI_IUS; 10212 10213 /* SAM-5 (no version claimed) */ 10214 scsi_ulto2b(0x00A0, inq_ptr->version1); 10215 /* SPC-4 (no version claimed) */ 10216 scsi_ulto2b(0x0460, inq_ptr->version2); 10217 if (port_type == CTL_PORT_FC) { 10218 /* FCP-2 ANSI INCITS.350:2003 */ 10219 scsi_ulto2b(0x0917, inq_ptr->version3); 10220 } else if (port_type == CTL_PORT_SCSI) { 10221 /* SPI-4 ANSI INCITS.362:200x */ 10222 scsi_ulto2b(0x0B56, inq_ptr->version3); 10223 } else if (port_type == CTL_PORT_ISCSI) { 10224 /* iSCSI (no version claimed) */ 10225 scsi_ulto2b(0x0960, inq_ptr->version3); 10226 } else if (port_type == CTL_PORT_SAS) { 10227 /* SAS (no version claimed) */ 10228 scsi_ulto2b(0x0BE0, inq_ptr->version3); 10229 } 10230 10231 if (lun == NULL) { 10232 /* SBC-4 (no version claimed) */ 10233 scsi_ulto2b(0x0600, inq_ptr->version4); 10234 } else { 10235 switch (lun->be_lun->lun_type) { 10236 case T_DIRECT: 10237 /* SBC-4 (no version claimed) */ 10238 scsi_ulto2b(0x0600, inq_ptr->version4); 10239 break; 10240 case T_PROCESSOR: 10241 break; 10242 case T_CDROM: 10243 /* MMC-6 (no version claimed) */ 10244 scsi_ulto2b(0x04E0, inq_ptr->version4); 10245 break; 10246 default: 10247 break; 10248 } 10249 } 10250 10251 ctl_set_success(ctsio); 10252 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10253 ctsio->be_move_done = ctl_config_move_done; 10254 ctl_datamove((union ctl_io *)ctsio); 10255 return (CTL_RETVAL_COMPLETE); 10256} 10257 10258int 10259ctl_inquiry(struct ctl_scsiio *ctsio) 10260{ 10261 struct scsi_inquiry *cdb; 10262 int retval; 10263 10264 CTL_DEBUG_PRINT(("ctl_inquiry\n")); 10265 10266 cdb = (struct scsi_inquiry *)ctsio->cdb; 10267 if (cdb->byte2 & SI_EVPD) 10268 retval = ctl_inquiry_evpd(ctsio); 10269 else if (cdb->page_code == 0) 10270 retval = ctl_inquiry_std(ctsio); 10271 else { 10272 ctl_set_invalid_field(ctsio, 10273 /*sks_valid*/ 1, 10274 /*command*/ 1, 10275 /*field*/ 2, 10276 /*bit_valid*/ 0, 10277 /*bit*/ 0); 10278 ctl_done((union ctl_io *)ctsio); 10279 return (CTL_RETVAL_COMPLETE); 10280 } 10281 10282 return (retval); 10283} 10284 10285int 10286ctl_get_config(struct ctl_scsiio *ctsio) 10287{ 10288 struct scsi_get_config_header *hdr; 10289 struct scsi_get_config_feature *feature; 10290 struct scsi_get_config *cdb; 10291 struct ctl_lun *lun; 10292 uint32_t alloc_len, data_len; 10293 int rt, starting; 10294 10295 lun = ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10296 cdb = (struct scsi_get_config *)ctsio->cdb; 10297 rt = (cdb->rt & SGC_RT_MASK); 10298 starting = scsi_2btoul(cdb->starting_feature); 10299 alloc_len = scsi_2btoul(cdb->length); 10300 10301 data_len = sizeof(struct scsi_get_config_header) + 10302 sizeof(struct scsi_get_config_feature) + 8 + 10303 sizeof(struct scsi_get_config_feature) + 8 + 10304 sizeof(struct scsi_get_config_feature) + 4 + 10305 sizeof(struct scsi_get_config_feature) + 4 + 10306 sizeof(struct scsi_get_config_feature) + 8 + 10307 sizeof(struct scsi_get_config_feature) + 10308 sizeof(struct scsi_get_config_feature) + 4 + 10309 sizeof(struct scsi_get_config_feature) + 4; 10310 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 10311 ctsio->kern_sg_entries = 0; 10312 ctsio->kern_data_resid = 0; 10313 ctsio->kern_rel_offset = 0; 10314 10315 hdr = (struct scsi_get_config_header *)ctsio->kern_data_ptr; 10316 if (lun->flags & CTL_LUN_OFFLINE) 10317 scsi_ulto2b(0x0000, hdr->current_profile); 10318 else 10319 scsi_ulto2b(0x0010, hdr->current_profile); 10320 feature = (struct scsi_get_config_feature *)(hdr + 1); 10321 10322 if (starting > 0x001f) 10323 goto done; 10324 if (starting > 0x001e) 10325 goto f1f; 10326 if (starting > 0x001d) 10327 goto f1e; 10328 if (starting > 0x0010) 10329 goto f1d; 10330 if (starting > 0x0003) 10331 goto f10; 10332 if (starting > 0x0002) 10333 goto f3; 10334 if (starting > 0x0001) 10335 goto f2; 10336 if (starting > 0x0000) 10337 goto f1; 10338 10339 /* Profile List */ 10340 scsi_ulto2b(0x0000, feature->feature_code); 10341 feature->flags = SGC_F_PERSISTENT | SGC_F_CURRENT; 10342 feature->add_length = 8; 10343 scsi_ulto2b(0x0008, &feature->feature_data[0]); /* CD-ROM */ 10344 feature->feature_data[2] = 0x00; 10345 scsi_ulto2b(0x0010, &feature->feature_data[4]); /* DVD-ROM */ 10346 feature->feature_data[6] = 0x01; 10347 feature = (struct scsi_get_config_feature *) 10348 &feature->feature_data[feature->add_length]; 10349 10350f1: /* Core */ 10351 scsi_ulto2b(0x0001, feature->feature_code); 10352 feature->flags = 0x08 | SGC_F_PERSISTENT | SGC_F_CURRENT; 10353 feature->add_length = 8; 10354 scsi_ulto4b(0x00000000, &feature->feature_data[0]); 10355 feature->feature_data[4] = 0x03; 10356 feature = (struct scsi_get_config_feature *) 10357 &feature->feature_data[feature->add_length]; 10358 10359f2: /* Morphing */ 10360 scsi_ulto2b(0x0002, feature->feature_code); 10361 feature->flags = 0x04 | SGC_F_PERSISTENT | SGC_F_CURRENT; 10362 feature->add_length = 4; 10363 feature->feature_data[0] = 0x02; 10364 feature = (struct scsi_get_config_feature *) 10365 &feature->feature_data[feature->add_length]; 10366 10367f3: /* Removable Medium */ 10368 scsi_ulto2b(0x0003, feature->feature_code); 10369 feature->flags = 0x04 | SGC_F_PERSISTENT | SGC_F_CURRENT; 10370 feature->add_length = 4; 10371 feature->feature_data[0] = 0x39; 10372 feature = (struct scsi_get_config_feature *) 10373 &feature->feature_data[feature->add_length]; 10374 10375 if (rt == SGC_RT_CURRENT && (lun->flags & CTL_LUN_OFFLINE)) 10376 goto done; 10377 10378f10: /* Random Read */ 10379 scsi_ulto2b(0x0010, feature->feature_code); 10380 feature->flags = 0x00; 10381 if ((lun->flags & CTL_LUN_OFFLINE) == 0) 10382 feature->flags |= SGC_F_CURRENT; 10383 feature->add_length = 8; 10384 scsi_ulto4b(lun->be_lun->blocksize, &feature->feature_data[0]); 10385 scsi_ulto2b(1, &feature->feature_data[4]); 10386 feature->feature_data[6] = 0x00; 10387 feature = (struct scsi_get_config_feature *) 10388 &feature->feature_data[feature->add_length]; 10389 10390f1d: /* Multi-Read */ 10391 scsi_ulto2b(0x001D, feature->feature_code); 10392 feature->flags = 0x00; 10393 if ((lun->flags & CTL_LUN_OFFLINE) == 0) 10394 feature->flags |= SGC_F_CURRENT; 10395 feature->add_length = 0; 10396 feature = (struct scsi_get_config_feature *) 10397 &feature->feature_data[feature->add_length]; 10398 10399f1e: /* CD Read */ 10400 scsi_ulto2b(0x001E, feature->feature_code); 10401 feature->flags = 0x00; 10402 if ((lun->flags & CTL_LUN_OFFLINE) == 0) 10403 feature->flags |= SGC_F_CURRENT; 10404 feature->add_length = 4; 10405 feature->feature_data[0] = 0x00; 10406 feature = (struct scsi_get_config_feature *) 10407 &feature->feature_data[feature->add_length]; 10408 10409f1f: /* DVD Read */ 10410 scsi_ulto2b(0x001F, feature->feature_code); 10411 feature->flags = 0x08; 10412 if ((lun->flags & CTL_LUN_OFFLINE) == 0) 10413 feature->flags |= SGC_F_CURRENT; 10414 feature->add_length = 4; 10415 feature->feature_data[0] = 0x01; 10416 feature->feature_data[2] = 0x03; 10417 feature = (struct scsi_get_config_feature *) 10418 &feature->feature_data[feature->add_length]; 10419 10420done: 10421 data_len = (uint8_t *)feature - (uint8_t *)hdr; 10422 if (rt == SGC_RT_SPECIFIC && data_len > 4) { 10423 feature = (struct scsi_get_config_feature *)(hdr + 1); 10424 if (scsi_2btoul(feature->feature_code) == starting) 10425 feature = (struct scsi_get_config_feature *) 10426 &feature->feature_data[feature->add_length]; 10427 data_len = (uint8_t *)feature - (uint8_t *)hdr; 10428 } 10429 scsi_ulto4b(data_len - 4, hdr->data_length); 10430 if (data_len < alloc_len) { 10431 ctsio->residual = alloc_len - data_len; 10432 ctsio->kern_data_len = data_len; 10433 ctsio->kern_total_len = data_len; 10434 } else { 10435 ctsio->residual = 0; 10436 ctsio->kern_data_len = alloc_len; 10437 ctsio->kern_total_len = alloc_len; 10438 } 10439 10440 ctl_set_success(ctsio); 10441 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10442 ctsio->be_move_done = ctl_config_move_done; 10443 ctl_datamove((union ctl_io *)ctsio); 10444 return (CTL_RETVAL_COMPLETE); 10445} 10446 10447int 10448ctl_get_event_status(struct ctl_scsiio *ctsio) 10449{ 10450 struct scsi_get_event_status_header *hdr; 10451 struct scsi_get_event_status *cdb; 10452 struct ctl_lun *lun; 10453 uint32_t alloc_len, data_len; 10454 int notif_class; 10455 10456 lun = ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10457 cdb = (struct scsi_get_event_status *)ctsio->cdb; 10458 if ((cdb->byte2 & SGESN_POLLED) == 0) { 10459 ctl_set_invalid_field(ctsio, /*sks_valid*/ 1, /*command*/ 1, 10460 /*field*/ 1, /*bit_valid*/ 1, /*bit*/ 0); 10461 ctl_done((union ctl_io *)ctsio); 10462 return (CTL_RETVAL_COMPLETE); 10463 } 10464 notif_class = cdb->notif_class; 10465 alloc_len = scsi_2btoul(cdb->length); 10466 10467 data_len = sizeof(struct scsi_get_event_status_header); 10468 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 10469 ctsio->kern_sg_entries = 0; 10470 ctsio->kern_data_resid = 0; 10471 ctsio->kern_rel_offset = 0; 10472 10473 if (data_len < alloc_len) { 10474 ctsio->residual = alloc_len - data_len; 10475 ctsio->kern_data_len = data_len; 10476 ctsio->kern_total_len = data_len; 10477 } else { 10478 ctsio->residual = 0; 10479 ctsio->kern_data_len = alloc_len; 10480 ctsio->kern_total_len = alloc_len; 10481 } 10482 10483 hdr = (struct scsi_get_event_status_header *)ctsio->kern_data_ptr; 10484 scsi_ulto2b(0, hdr->descr_length); 10485 hdr->nea_class = SGESN_NEA; 10486 hdr->supported_class = 0; 10487 10488 ctl_set_success(ctsio); 10489 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10490 ctsio->be_move_done = ctl_config_move_done; 10491 ctl_datamove((union ctl_io *)ctsio); 10492 return (CTL_RETVAL_COMPLETE); 10493} 10494 10495int 10496ctl_mechanism_status(struct ctl_scsiio *ctsio) 10497{ 10498 struct scsi_mechanism_status_header *hdr; 10499 struct scsi_mechanism_status *cdb; 10500 struct ctl_lun *lun; 10501 uint32_t alloc_len, data_len; 10502 10503 lun = ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10504 cdb = (struct scsi_mechanism_status *)ctsio->cdb; 10505 alloc_len = scsi_2btoul(cdb->length); 10506 10507 data_len = sizeof(struct scsi_mechanism_status_header); 10508 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 10509 ctsio->kern_sg_entries = 0; 10510 ctsio->kern_data_resid = 0; 10511 ctsio->kern_rel_offset = 0; 10512 10513 if (data_len < alloc_len) { 10514 ctsio->residual = alloc_len - data_len; 10515 ctsio->kern_data_len = data_len; 10516 ctsio->kern_total_len = data_len; 10517 } else { 10518 ctsio->residual = 0; 10519 ctsio->kern_data_len = alloc_len; 10520 ctsio->kern_total_len = alloc_len; 10521 } 10522 10523 hdr = (struct scsi_mechanism_status_header *)ctsio->kern_data_ptr; 10524 hdr->state1 = 0x00; 10525 hdr->state2 = 0xe0; 10526 scsi_ulto3b(0, hdr->lba); 10527 hdr->slots_num = 0; 10528 scsi_ulto2b(0, hdr->slots_length); 10529 10530 ctl_set_success(ctsio); 10531 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10532 ctsio->be_move_done = ctl_config_move_done; 10533 ctl_datamove((union ctl_io *)ctsio); 10534 return (CTL_RETVAL_COMPLETE); 10535} 10536 10537static void 10538ctl_ultomsf(uint32_t lba, uint8_t *buf) 10539{ 10540 10541 lba += 150; 10542 buf[0] = 0; 10543 buf[1] = bin2bcd((lba / 75) / 60); 10544 buf[2] = bin2bcd((lba / 75) % 60); 10545 buf[3] = bin2bcd(lba % 75); 10546} 10547 10548int 10549ctl_read_toc(struct ctl_scsiio *ctsio) 10550{ 10551 struct scsi_read_toc_hdr *hdr; 10552 struct scsi_read_toc_type01_descr *descr; 10553 struct scsi_read_toc *cdb; 10554 struct ctl_lun *lun; 10555 uint32_t alloc_len, data_len; 10556 int format, msf; 10557 10558 lun = ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10559 cdb = (struct scsi_read_toc *)ctsio->cdb; 10560 msf = (cdb->byte2 & CD_MSF) != 0; 10561 format = cdb->format; 10562 alloc_len = scsi_2btoul(cdb->data_len); 10563 10564 data_len = sizeof(struct scsi_read_toc_hdr); 10565 if (format == 0) 10566 data_len += 2 * sizeof(struct scsi_read_toc_type01_descr); 10567 else 10568 data_len += sizeof(struct scsi_read_toc_type01_descr); 10569 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 10570 ctsio->kern_sg_entries = 0; 10571 ctsio->kern_data_resid = 0; 10572 ctsio->kern_rel_offset = 0; 10573 10574 if (data_len < alloc_len) { 10575 ctsio->residual = alloc_len - data_len; 10576 ctsio->kern_data_len = data_len; 10577 ctsio->kern_total_len = data_len; 10578 } else { 10579 ctsio->residual = 0; 10580 ctsio->kern_data_len = alloc_len; 10581 ctsio->kern_total_len = alloc_len; 10582 } 10583 10584 hdr = (struct scsi_read_toc_hdr *)ctsio->kern_data_ptr; 10585 if (format == 0) { 10586 scsi_ulto2b(0x12, hdr->data_length); 10587 hdr->first = 1; 10588 hdr->last = 1; 10589 descr = (struct scsi_read_toc_type01_descr *)(hdr + 1); 10590 descr->addr_ctl = 0x14; 10591 descr->track_number = 1; 10592 if (msf) 10593 ctl_ultomsf(0, descr->track_start); 10594 else 10595 scsi_ulto4b(0, descr->track_start); 10596 descr++; 10597 descr->addr_ctl = 0x14; 10598 descr->track_number = 0xaa; 10599 if (msf) 10600 ctl_ultomsf(lun->be_lun->maxlba+1, descr->track_start); 10601 else 10602 scsi_ulto4b(lun->be_lun->maxlba+1, descr->track_start); 10603 } else { 10604 scsi_ulto2b(0x0a, hdr->data_length); 10605 hdr->first = 1; 10606 hdr->last = 1; 10607 descr = (struct scsi_read_toc_type01_descr *)(hdr + 1); 10608 descr->addr_ctl = 0x14; 10609 descr->track_number = 1; 10610 if (msf) 10611 ctl_ultomsf(0, descr->track_start); 10612 else 10613 scsi_ulto4b(0, descr->track_start); 10614 } 10615 10616 ctl_set_success(ctsio); 10617 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10618 ctsio->be_move_done = ctl_config_move_done; 10619 ctl_datamove((union ctl_io *)ctsio); 10620 return (CTL_RETVAL_COMPLETE); 10621} 10622 10623/* 10624 * For known CDB types, parse the LBA and length. 10625 */ 10626static int 10627ctl_get_lba_len(union ctl_io *io, uint64_t *lba, uint64_t *len) 10628{ 10629 if (io->io_hdr.io_type != CTL_IO_SCSI) 10630 return (1); 10631 10632 switch (io->scsiio.cdb[0]) { 10633 case COMPARE_AND_WRITE: { 10634 struct scsi_compare_and_write *cdb; 10635 10636 cdb = (struct scsi_compare_and_write *)io->scsiio.cdb; 10637 10638 *lba = scsi_8btou64(cdb->addr); 10639 *len = cdb->length; 10640 break; 10641 } 10642 case READ_6: 10643 case WRITE_6: { 10644 struct scsi_rw_6 *cdb; 10645 10646 cdb = (struct scsi_rw_6 *)io->scsiio.cdb; 10647 10648 *lba = scsi_3btoul(cdb->addr); 10649 /* only 5 bits are valid in the most significant address byte */ 10650 *lba &= 0x1fffff; 10651 *len = cdb->length; 10652 break; 10653 } 10654 case READ_10: 10655 case WRITE_10: { 10656 struct scsi_rw_10 *cdb; 10657 10658 cdb = (struct scsi_rw_10 *)io->scsiio.cdb; 10659 10660 *lba = scsi_4btoul(cdb->addr); 10661 *len = scsi_2btoul(cdb->length); 10662 break; 10663 } 10664 case WRITE_VERIFY_10: { 10665 struct scsi_write_verify_10 *cdb; 10666 10667 cdb = (struct scsi_write_verify_10 *)io->scsiio.cdb; 10668 10669 *lba = scsi_4btoul(cdb->addr); 10670 *len = scsi_2btoul(cdb->length); 10671 break; 10672 } 10673 case READ_12: 10674 case WRITE_12: { 10675 struct scsi_rw_12 *cdb; 10676 10677 cdb = (struct scsi_rw_12 *)io->scsiio.cdb; 10678 10679 *lba = scsi_4btoul(cdb->addr); 10680 *len = scsi_4btoul(cdb->length); 10681 break; 10682 } 10683 case WRITE_VERIFY_12: { 10684 struct scsi_write_verify_12 *cdb; 10685 10686 cdb = (struct scsi_write_verify_12 *)io->scsiio.cdb; 10687 10688 *lba = scsi_4btoul(cdb->addr); 10689 *len = scsi_4btoul(cdb->length); 10690 break; 10691 } 10692 case READ_16: 10693 case WRITE_16: { 10694 struct scsi_rw_16 *cdb; 10695 10696 cdb = (struct scsi_rw_16 *)io->scsiio.cdb; 10697 10698 *lba = scsi_8btou64(cdb->addr); 10699 *len = scsi_4btoul(cdb->length); 10700 break; 10701 } 10702 case WRITE_ATOMIC_16: { 10703 struct scsi_write_atomic_16 *cdb; 10704 10705 cdb = (struct scsi_write_atomic_16 *)io->scsiio.cdb; 10706 10707 *lba = scsi_8btou64(cdb->addr); 10708 *len = scsi_2btoul(cdb->length); 10709 break; 10710 } 10711 case WRITE_VERIFY_16: { 10712 struct scsi_write_verify_16 *cdb; 10713 10714 cdb = (struct scsi_write_verify_16 *)io->scsiio.cdb; 10715 10716 *lba = scsi_8btou64(cdb->addr); 10717 *len = scsi_4btoul(cdb->length); 10718 break; 10719 } 10720 case WRITE_SAME_10: { 10721 struct scsi_write_same_10 *cdb; 10722 10723 cdb = (struct scsi_write_same_10 *)io->scsiio.cdb; 10724 10725 *lba = scsi_4btoul(cdb->addr); 10726 *len = scsi_2btoul(cdb->length); 10727 break; 10728 } 10729 case WRITE_SAME_16: { 10730 struct scsi_write_same_16 *cdb; 10731 10732 cdb = (struct scsi_write_same_16 *)io->scsiio.cdb; 10733 10734 *lba = scsi_8btou64(cdb->addr); 10735 *len = scsi_4btoul(cdb->length); 10736 break; 10737 } 10738 case VERIFY_10: { 10739 struct scsi_verify_10 *cdb; 10740 10741 cdb = (struct scsi_verify_10 *)io->scsiio.cdb; 10742 10743 *lba = scsi_4btoul(cdb->addr); 10744 *len = scsi_2btoul(cdb->length); 10745 break; 10746 } 10747 case VERIFY_12: { 10748 struct scsi_verify_12 *cdb; 10749 10750 cdb = (struct scsi_verify_12 *)io->scsiio.cdb; 10751 10752 *lba = scsi_4btoul(cdb->addr); 10753 *len = scsi_4btoul(cdb->length); 10754 break; 10755 } 10756 case VERIFY_16: { 10757 struct scsi_verify_16 *cdb; 10758 10759 cdb = (struct scsi_verify_16 *)io->scsiio.cdb; 10760 10761 *lba = scsi_8btou64(cdb->addr); 10762 *len = scsi_4btoul(cdb->length); 10763 break; 10764 } 10765 case UNMAP: { 10766 *lba = 0; 10767 *len = UINT64_MAX; 10768 break; 10769 } 10770 case SERVICE_ACTION_IN: { /* GET LBA STATUS */ 10771 struct scsi_get_lba_status *cdb; 10772 10773 cdb = (struct scsi_get_lba_status *)io->scsiio.cdb; 10774 *lba = scsi_8btou64(cdb->addr); 10775 *len = UINT32_MAX; 10776 break; 10777 } 10778 default: 10779 return (1); 10780 break; /* NOTREACHED */ 10781 } 10782 10783 return (0); 10784} 10785 10786static ctl_action 10787ctl_extent_check_lba(uint64_t lba1, uint64_t len1, uint64_t lba2, uint64_t len2, 10788 bool seq) 10789{ 10790 uint64_t endlba1, endlba2; 10791 10792 endlba1 = lba1 + len1 - (seq ? 0 : 1); 10793 endlba2 = lba2 + len2 - 1; 10794 10795 if ((endlba1 < lba2) || (endlba2 < lba1)) 10796 return (CTL_ACTION_PASS); 10797 else 10798 return (CTL_ACTION_BLOCK); 10799} 10800 10801static int 10802ctl_extent_check_unmap(union ctl_io *io, uint64_t lba2, uint64_t len2) 10803{ 10804 struct ctl_ptr_len_flags *ptrlen; 10805 struct scsi_unmap_desc *buf, *end, *range; 10806 uint64_t lba; 10807 uint32_t len; 10808 10809 /* If not UNMAP -- go other way. */ 10810 if (io->io_hdr.io_type != CTL_IO_SCSI || 10811 io->scsiio.cdb[0] != UNMAP) 10812 return (CTL_ACTION_ERROR); 10813 10814 /* If UNMAP without data -- block and wait for data. */ 10815 ptrlen = (struct ctl_ptr_len_flags *) 10816 &io->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 10817 if ((io->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0 || 10818 ptrlen->ptr == NULL) 10819 return (CTL_ACTION_BLOCK); 10820 10821 /* UNMAP with data -- check for collision. */ 10822 buf = (struct scsi_unmap_desc *)ptrlen->ptr; 10823 end = buf + ptrlen->len / sizeof(*buf); 10824 for (range = buf; range < end; range++) { 10825 lba = scsi_8btou64(range->lba); 10826 len = scsi_4btoul(range->length); 10827 if ((lba < lba2 + len2) && (lba + len > lba2)) 10828 return (CTL_ACTION_BLOCK); 10829 } 10830 return (CTL_ACTION_PASS); 10831} 10832 10833static ctl_action 10834ctl_extent_check(union ctl_io *io1, union ctl_io *io2, bool seq) 10835{ 10836 uint64_t lba1, lba2; 10837 uint64_t len1, len2; 10838 int retval; 10839 10840 if (ctl_get_lba_len(io2, &lba2, &len2) != 0) 10841 return (CTL_ACTION_ERROR); 10842 10843 retval = ctl_extent_check_unmap(io1, lba2, len2); 10844 if (retval != CTL_ACTION_ERROR) 10845 return (retval); 10846 10847 if (ctl_get_lba_len(io1, &lba1, &len1) != 0) 10848 return (CTL_ACTION_ERROR); 10849 10850 if (io1->io_hdr.flags & CTL_FLAG_SERSEQ_DONE) 10851 seq = FALSE; 10852 return (ctl_extent_check_lba(lba1, len1, lba2, len2, seq)); 10853} 10854 10855static ctl_action 10856ctl_extent_check_seq(union ctl_io *io1, union ctl_io *io2) 10857{ 10858 uint64_t lba1, lba2; 10859 uint64_t len1, len2; 10860 10861 if (io1->io_hdr.flags & CTL_FLAG_SERSEQ_DONE) 10862 return (CTL_ACTION_PASS); 10863 if (ctl_get_lba_len(io1, &lba1, &len1) != 0) 10864 return (CTL_ACTION_ERROR); 10865 if (ctl_get_lba_len(io2, &lba2, &len2) != 0) 10866 return (CTL_ACTION_ERROR); 10867 10868 if (lba1 + len1 == lba2) 10869 return (CTL_ACTION_BLOCK); 10870 return (CTL_ACTION_PASS); 10871} 10872 10873static ctl_action 10874ctl_check_for_blockage(struct ctl_lun *lun, union ctl_io *pending_io, 10875 union ctl_io *ooa_io) 10876{ 10877 const struct ctl_cmd_entry *pending_entry, *ooa_entry; 10878 const ctl_serialize_action *serialize_row; 10879 10880 /* 10881 * The initiator attempted multiple untagged commands at the same 10882 * time. Can't do that. 10883 */ 10884 if ((pending_io->scsiio.tag_type == CTL_TAG_UNTAGGED) 10885 && (ooa_io->scsiio.tag_type == CTL_TAG_UNTAGGED) 10886 && ((pending_io->io_hdr.nexus.targ_port == 10887 ooa_io->io_hdr.nexus.targ_port) 10888 && (pending_io->io_hdr.nexus.initid == 10889 ooa_io->io_hdr.nexus.initid)) 10890 && ((ooa_io->io_hdr.flags & (CTL_FLAG_ABORT | 10891 CTL_FLAG_STATUS_SENT)) == 0)) 10892 return (CTL_ACTION_OVERLAP); 10893 10894 /* 10895 * The initiator attempted to send multiple tagged commands with 10896 * the same ID. (It's fine if different initiators have the same 10897 * tag ID.) 10898 * 10899 * Even if all of those conditions are true, we don't kill the I/O 10900 * if the command ahead of us has been aborted. We won't end up 10901 * sending it to the FETD, and it's perfectly legal to resend a 10902 * command with the same tag number as long as the previous 10903 * instance of this tag number has been aborted somehow. 10904 */ 10905 if ((pending_io->scsiio.tag_type != CTL_TAG_UNTAGGED) 10906 && (ooa_io->scsiio.tag_type != CTL_TAG_UNTAGGED) 10907 && (pending_io->scsiio.tag_num == ooa_io->scsiio.tag_num) 10908 && ((pending_io->io_hdr.nexus.targ_port == 10909 ooa_io->io_hdr.nexus.targ_port) 10910 && (pending_io->io_hdr.nexus.initid == 10911 ooa_io->io_hdr.nexus.initid)) 10912 && ((ooa_io->io_hdr.flags & (CTL_FLAG_ABORT | 10913 CTL_FLAG_STATUS_SENT)) == 0)) 10914 return (CTL_ACTION_OVERLAP_TAG); 10915 10916 /* 10917 * If we get a head of queue tag, SAM-3 says that we should 10918 * immediately execute it. 10919 * 10920 * What happens if this command would normally block for some other 10921 * reason? e.g. a request sense with a head of queue tag 10922 * immediately after a write. Normally that would block, but this 10923 * will result in its getting executed immediately... 10924 * 10925 * We currently return "pass" instead of "skip", so we'll end up 10926 * going through the rest of the queue to check for overlapped tags. 10927 * 10928 * XXX KDM check for other types of blockage first?? 10929 */ 10930 if (pending_io->scsiio.tag_type == CTL_TAG_HEAD_OF_QUEUE) 10931 return (CTL_ACTION_PASS); 10932 10933 /* 10934 * Ordered tags have to block until all items ahead of them 10935 * have completed. If we get called with an ordered tag, we always 10936 * block, if something else is ahead of us in the queue. 10937 */ 10938 if (pending_io->scsiio.tag_type == CTL_TAG_ORDERED) 10939 return (CTL_ACTION_BLOCK); 10940 10941 /* 10942 * Simple tags get blocked until all head of queue and ordered tags 10943 * ahead of them have completed. I'm lumping untagged commands in 10944 * with simple tags here. XXX KDM is that the right thing to do? 10945 */ 10946 if (((pending_io->scsiio.tag_type == CTL_TAG_UNTAGGED) 10947 || (pending_io->scsiio.tag_type == CTL_TAG_SIMPLE)) 10948 && ((ooa_io->scsiio.tag_type == CTL_TAG_HEAD_OF_QUEUE) 10949 || (ooa_io->scsiio.tag_type == CTL_TAG_ORDERED))) 10950 return (CTL_ACTION_BLOCK); 10951 10952 pending_entry = ctl_get_cmd_entry(&pending_io->scsiio, NULL); 10953 ooa_entry = ctl_get_cmd_entry(&ooa_io->scsiio, NULL); 10954 10955 serialize_row = ctl_serialize_table[ooa_entry->seridx]; 10956 10957 switch (serialize_row[pending_entry->seridx]) { 10958 case CTL_SER_BLOCK: 10959 return (CTL_ACTION_BLOCK); 10960 case CTL_SER_EXTENT: 10961 return (ctl_extent_check(ooa_io, pending_io, 10962 (lun->be_lun && lun->be_lun->serseq == CTL_LUN_SERSEQ_ON))); 10963 case CTL_SER_EXTENTOPT: 10964 if ((lun->mode_pages.control_page[CTL_PAGE_CURRENT].queue_flags 10965 & SCP_QUEUE_ALG_MASK) != SCP_QUEUE_ALG_UNRESTRICTED) 10966 return (ctl_extent_check(ooa_io, pending_io, 10967 (lun->be_lun && 10968 lun->be_lun->serseq == CTL_LUN_SERSEQ_ON))); 10969 return (CTL_ACTION_PASS); 10970 case CTL_SER_EXTENTSEQ: 10971 if (lun->be_lun && lun->be_lun->serseq != CTL_LUN_SERSEQ_OFF) 10972 return (ctl_extent_check_seq(ooa_io, pending_io)); 10973 return (CTL_ACTION_PASS); 10974 case CTL_SER_PASS: 10975 return (CTL_ACTION_PASS); 10976 case CTL_SER_BLOCKOPT: 10977 if ((lun->mode_pages.control_page[CTL_PAGE_CURRENT].queue_flags 10978 & SCP_QUEUE_ALG_MASK) != SCP_QUEUE_ALG_UNRESTRICTED) 10979 return (CTL_ACTION_BLOCK); 10980 return (CTL_ACTION_PASS); 10981 case CTL_SER_SKIP: 10982 return (CTL_ACTION_SKIP); 10983 default: 10984 panic("invalid serialization value %d", 10985 serialize_row[pending_entry->seridx]); 10986 } 10987 10988 return (CTL_ACTION_ERROR); 10989} 10990 10991/* 10992 * Check for blockage or overlaps against the OOA (Order Of Arrival) queue. 10993 * Assumptions: 10994 * - pending_io is generally either incoming, or on the blocked queue 10995 * - starting I/O is the I/O we want to start the check with. 10996 */ 10997static ctl_action 10998ctl_check_ooa(struct ctl_lun *lun, union ctl_io *pending_io, 10999 union ctl_io *starting_io) 11000{ 11001 union ctl_io *ooa_io; 11002 ctl_action action; 11003 11004 mtx_assert(&lun->lun_lock, MA_OWNED); 11005 11006 /* 11007 * Run back along the OOA queue, starting with the current 11008 * blocked I/O and going through every I/O before it on the 11009 * queue. If starting_io is NULL, we'll just end up returning 11010 * CTL_ACTION_PASS. 11011 */ 11012 for (ooa_io = starting_io; ooa_io != NULL; 11013 ooa_io = (union ctl_io *)TAILQ_PREV(&ooa_io->io_hdr, ctl_ooaq, 11014 ooa_links)){ 11015 11016 /* 11017 * This routine just checks to see whether 11018 * cur_blocked is blocked by ooa_io, which is ahead 11019 * of it in the queue. It doesn't queue/dequeue 11020 * cur_blocked. 11021 */ 11022 action = ctl_check_for_blockage(lun, pending_io, ooa_io); 11023 switch (action) { 11024 case CTL_ACTION_BLOCK: 11025 case CTL_ACTION_OVERLAP: 11026 case CTL_ACTION_OVERLAP_TAG: 11027 case CTL_ACTION_SKIP: 11028 case CTL_ACTION_ERROR: 11029 return (action); 11030 break; /* NOTREACHED */ 11031 case CTL_ACTION_PASS: 11032 break; 11033 default: 11034 panic("invalid action %d", action); 11035 break; /* NOTREACHED */ 11036 } 11037 } 11038 11039 return (CTL_ACTION_PASS); 11040} 11041 11042/* 11043 * Assumptions: 11044 * - An I/O has just completed, and has been removed from the per-LUN OOA 11045 * queue, so some items on the blocked queue may now be unblocked. 11046 */ 11047static int 11048ctl_check_blocked(struct ctl_lun *lun) 11049{ 11050 struct ctl_softc *softc = lun->ctl_softc; 11051 union ctl_io *cur_blocked, *next_blocked; 11052 11053 mtx_assert(&lun->lun_lock, MA_OWNED); 11054 11055 /* 11056 * Run forward from the head of the blocked queue, checking each 11057 * entry against the I/Os prior to it on the OOA queue to see if 11058 * there is still any blockage. 11059 * 11060 * We cannot use the TAILQ_FOREACH() macro, because it can't deal 11061 * with our removing a variable on it while it is traversing the 11062 * list. 11063 */ 11064 for (cur_blocked = (union ctl_io *)TAILQ_FIRST(&lun->blocked_queue); 11065 cur_blocked != NULL; cur_blocked = next_blocked) { 11066 union ctl_io *prev_ooa; 11067 ctl_action action; 11068 11069 next_blocked = (union ctl_io *)TAILQ_NEXT(&cur_blocked->io_hdr, 11070 blocked_links); 11071 11072 prev_ooa = (union ctl_io *)TAILQ_PREV(&cur_blocked->io_hdr, 11073 ctl_ooaq, ooa_links); 11074 11075 /* 11076 * If cur_blocked happens to be the first item in the OOA 11077 * queue now, prev_ooa will be NULL, and the action 11078 * returned will just be CTL_ACTION_PASS. 11079 */ 11080 action = ctl_check_ooa(lun, cur_blocked, prev_ooa); 11081 11082 switch (action) { 11083 case CTL_ACTION_BLOCK: 11084 /* Nothing to do here, still blocked */ 11085 break; 11086 case CTL_ACTION_OVERLAP: 11087 case CTL_ACTION_OVERLAP_TAG: 11088 /* 11089 * This shouldn't happen! In theory we've already 11090 * checked this command for overlap... 11091 */ 11092 break; 11093 case CTL_ACTION_PASS: 11094 case CTL_ACTION_SKIP: { 11095 const struct ctl_cmd_entry *entry; 11096 11097 /* 11098 * The skip case shouldn't happen, this transaction 11099 * should have never made it onto the blocked queue. 11100 */ 11101 /* 11102 * This I/O is no longer blocked, we can remove it 11103 * from the blocked queue. Since this is a TAILQ 11104 * (doubly linked list), we can do O(1) removals 11105 * from any place on the list. 11106 */ 11107 TAILQ_REMOVE(&lun->blocked_queue, &cur_blocked->io_hdr, 11108 blocked_links); 11109 cur_blocked->io_hdr.flags &= ~CTL_FLAG_BLOCKED; 11110 11111 if ((softc->ha_mode != CTL_HA_MODE_XFER) && 11112 (cur_blocked->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)){ 11113 /* 11114 * Need to send IO back to original side to 11115 * run 11116 */ 11117 union ctl_ha_msg msg_info; 11118 11119 cur_blocked->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 11120 msg_info.hdr.original_sc = 11121 cur_blocked->io_hdr.original_sc; 11122 msg_info.hdr.serializing_sc = cur_blocked; 11123 msg_info.hdr.msg_type = CTL_MSG_R2R; 11124 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 11125 sizeof(msg_info.hdr), M_NOWAIT); 11126 break; 11127 } 11128 entry = ctl_get_cmd_entry(&cur_blocked->scsiio, NULL); 11129 11130 /* 11131 * Check this I/O for LUN state changes that may 11132 * have happened while this command was blocked. 11133 * The LUN state may have been changed by a command 11134 * ahead of us in the queue, so we need to re-check 11135 * for any states that can be caused by SCSI 11136 * commands. 11137 */ 11138 if (ctl_scsiio_lun_check(lun, entry, 11139 &cur_blocked->scsiio) == 0) { 11140 cur_blocked->io_hdr.flags |= 11141 CTL_FLAG_IS_WAS_ON_RTR; 11142 ctl_enqueue_rtr(cur_blocked); 11143 } else 11144 ctl_done(cur_blocked); 11145 break; 11146 } 11147 default: 11148 /* 11149 * This probably shouldn't happen -- we shouldn't 11150 * get CTL_ACTION_ERROR, or anything else. 11151 */ 11152 break; 11153 } 11154 } 11155 11156 return (CTL_RETVAL_COMPLETE); 11157} 11158 11159/* 11160 * This routine (with one exception) checks LUN flags that can be set by 11161 * commands ahead of us in the OOA queue. These flags have to be checked 11162 * when a command initially comes in, and when we pull a command off the 11163 * blocked queue and are preparing to execute it. The reason we have to 11164 * check these flags for commands on the blocked queue is that the LUN 11165 * state may have been changed by a command ahead of us while we're on the 11166 * blocked queue. 11167 * 11168 * Ordering is somewhat important with these checks, so please pay 11169 * careful attention to the placement of any new checks. 11170 */ 11171static int 11172ctl_scsiio_lun_check(struct ctl_lun *lun, 11173 const struct ctl_cmd_entry *entry, struct ctl_scsiio *ctsio) 11174{ 11175 struct ctl_softc *softc = lun->ctl_softc; 11176 int retval; 11177 uint32_t residx; 11178 11179 retval = 0; 11180 11181 mtx_assert(&lun->lun_lock, MA_OWNED); 11182 11183 /* 11184 * If this shelf is a secondary shelf controller, we may have to 11185 * reject some commands disallowed by HA mode and link state. 11186 */ 11187 if ((lun->flags & CTL_LUN_PRIMARY_SC) == 0) { 11188 if (softc->ha_link == CTL_HA_LINK_OFFLINE && 11189 (entry->flags & CTL_CMD_FLAG_OK_ON_UNAVAIL) == 0) { 11190 ctl_set_lun_unavail(ctsio); 11191 retval = 1; 11192 goto bailout; 11193 } 11194 if ((lun->flags & CTL_LUN_PEER_SC_PRIMARY) == 0 && 11195 (entry->flags & CTL_CMD_FLAG_OK_ON_UNAVAIL) == 0) { 11196 ctl_set_lun_transit(ctsio); 11197 retval = 1; 11198 goto bailout; 11199 } 11200 if (softc->ha_mode == CTL_HA_MODE_ACT_STBY && 11201 (entry->flags & CTL_CMD_FLAG_OK_ON_STANDBY) == 0) { 11202 ctl_set_lun_standby(ctsio); 11203 retval = 1; 11204 goto bailout; 11205 } 11206 11207 /* The rest of checks are only done on executing side */ 11208 if (softc->ha_mode == CTL_HA_MODE_XFER) 11209 goto bailout; 11210 } 11211 11212 if (entry->pattern & CTL_LUN_PAT_WRITE) { 11213 if (lun->be_lun && 11214 lun->be_lun->flags & CTL_LUN_FLAG_READONLY) { 11215 ctl_set_hw_write_protected(ctsio); 11216 retval = 1; 11217 goto bailout; 11218 } 11219 if ((lun->mode_pages.control_page[CTL_PAGE_CURRENT] 11220 .eca_and_aen & SCP_SWP) != 0) { 11221 ctl_set_sense(ctsio, /*current_error*/ 1, 11222 /*sense_key*/ SSD_KEY_DATA_PROTECT, 11223 /*asc*/ 0x27, /*ascq*/ 0x02, SSD_ELEM_NONE); 11224 retval = 1; 11225 goto bailout; 11226 } 11227 } 11228 11229 /* 11230 * Check for a reservation conflict. If this command isn't allowed 11231 * even on reserved LUNs, and if this initiator isn't the one who 11232 * reserved us, reject the command with a reservation conflict. 11233 */ 11234 residx = ctl_get_initindex(&ctsio->io_hdr.nexus); 11235 if ((lun->flags & CTL_LUN_RESERVED) 11236 && ((entry->flags & CTL_CMD_FLAG_ALLOW_ON_RESV) == 0)) { 11237 if (lun->res_idx != residx) { 11238 ctl_set_reservation_conflict(ctsio); 11239 retval = 1; 11240 goto bailout; 11241 } 11242 } 11243 11244 if ((lun->flags & CTL_LUN_PR_RESERVED) == 0 || 11245 (entry->flags & CTL_CMD_FLAG_ALLOW_ON_PR_RESV)) { 11246 /* No reservation or command is allowed. */; 11247 } else if ((entry->flags & CTL_CMD_FLAG_ALLOW_ON_PR_WRESV) && 11248 (lun->res_type == SPR_TYPE_WR_EX || 11249 lun->res_type == SPR_TYPE_WR_EX_RO || 11250 lun->res_type == SPR_TYPE_WR_EX_AR)) { 11251 /* The command is allowed for Write Exclusive resv. */; 11252 } else { 11253 /* 11254 * if we aren't registered or it's a res holder type 11255 * reservation and this isn't the res holder then set a 11256 * conflict. 11257 */ 11258 if (ctl_get_prkey(lun, residx) == 0 11259 || (residx != lun->pr_res_idx && lun->res_type < 4)) { 11260 ctl_set_reservation_conflict(ctsio); 11261 retval = 1; 11262 goto bailout; 11263 } 11264 } 11265 11266 if ((lun->flags & CTL_LUN_OFFLINE) 11267 && ((entry->flags & CTL_CMD_FLAG_OK_ON_STANDBY) == 0)) { 11268 ctl_set_lun_not_ready(ctsio); 11269 retval = 1; 11270 goto bailout; 11271 } 11272 11273 if ((lun->flags & CTL_LUN_STOPPED) 11274 && ((entry->flags & CTL_CMD_FLAG_OK_ON_STOPPED) == 0)) { 11275 /* "Logical unit not ready, initializing cmd. required" */ 11276 ctl_set_lun_stopped(ctsio); 11277 retval = 1; 11278 goto bailout; 11279 } 11280 11281 if ((lun->flags & CTL_LUN_INOPERABLE) 11282 && ((entry->flags & CTL_CMD_FLAG_OK_ON_INOPERABLE) == 0)) { 11283 /* "Medium format corrupted" */ 11284 ctl_set_medium_format_corrupted(ctsio); 11285 retval = 1; 11286 goto bailout; 11287 } 11288 11289bailout: 11290 return (retval); 11291} 11292 11293static void 11294ctl_failover_io(union ctl_io *io, int have_lock) 11295{ 11296 ctl_set_busy(&io->scsiio); 11297 ctl_done(io); 11298} 11299 11300static void 11301ctl_failover_lun(union ctl_io *rio) 11302{ 11303 struct ctl_softc *softc = control_softc; 11304 struct ctl_lun *lun; 11305 struct ctl_io_hdr *io, *next_io; 11306 uint32_t targ_lun; 11307 11308 targ_lun = rio->io_hdr.nexus.targ_mapped_lun; 11309 CTL_DEBUG_PRINT(("FAILOVER for lun %ju\n", targ_lun)); 11310 11311 /* Find and lock the LUN. */ 11312 mtx_lock(&softc->ctl_lock); 11313 if ((targ_lun < CTL_MAX_LUNS) && 11314 ((lun = softc->ctl_luns[targ_lun]) != NULL)) { 11315 mtx_lock(&lun->lun_lock); 11316 mtx_unlock(&softc->ctl_lock); 11317 if (lun->flags & CTL_LUN_DISABLED) { 11318 mtx_unlock(&lun->lun_lock); 11319 return; 11320 } 11321 } else { 11322 mtx_unlock(&softc->ctl_lock); 11323 return; 11324 } 11325 11326 if (softc->ha_mode == CTL_HA_MODE_XFER) { 11327 TAILQ_FOREACH_SAFE(io, &lun->ooa_queue, ooa_links, next_io) { 11328 /* We are master */ 11329 if (io->flags & CTL_FLAG_FROM_OTHER_SC) { 11330 if (io->flags & CTL_FLAG_IO_ACTIVE) { 11331 io->flags |= CTL_FLAG_ABORT; 11332 io->flags |= CTL_FLAG_FAILOVER; 11333 } else { /* This can be only due to DATAMOVE */ 11334 io->msg_type = CTL_MSG_DATAMOVE_DONE; 11335 io->flags &= ~CTL_FLAG_DMA_INPROG; 11336 io->flags |= CTL_FLAG_IO_ACTIVE; 11337 io->port_status = 31340; 11338 ctl_enqueue_isc((union ctl_io *)io); 11339 } 11340 } 11341 /* We are slave */ 11342 if (io->flags & CTL_FLAG_SENT_2OTHER_SC) { 11343 io->flags &= ~CTL_FLAG_SENT_2OTHER_SC; 11344 if (io->flags & CTL_FLAG_IO_ACTIVE) { 11345 io->flags |= CTL_FLAG_FAILOVER; 11346 } else { 11347 ctl_set_busy(&((union ctl_io *)io)-> 11348 scsiio); 11349 ctl_done((union ctl_io *)io); 11350 } 11351 } 11352 } 11353 } else { /* SERIALIZE modes */ 11354 TAILQ_FOREACH_SAFE(io, &lun->blocked_queue, blocked_links, 11355 next_io) { 11356 /* We are master */ 11357 if (io->flags & CTL_FLAG_FROM_OTHER_SC) { 11358 TAILQ_REMOVE(&lun->blocked_queue, io, 11359 blocked_links); 11360 io->flags &= ~CTL_FLAG_BLOCKED; 11361 TAILQ_REMOVE(&lun->ooa_queue, io, ooa_links); 11362 ctl_free_io((union ctl_io *)io); 11363 } 11364 } 11365 TAILQ_FOREACH_SAFE(io, &lun->ooa_queue, ooa_links, next_io) { 11366 /* We are master */ 11367 if (io->flags & CTL_FLAG_FROM_OTHER_SC) { 11368 TAILQ_REMOVE(&lun->ooa_queue, io, ooa_links); 11369 ctl_free_io((union ctl_io *)io); 11370 } 11371 /* We are slave */ 11372 if (io->flags & CTL_FLAG_SENT_2OTHER_SC) { 11373 io->flags &= ~CTL_FLAG_SENT_2OTHER_SC; 11374 if (!(io->flags & CTL_FLAG_IO_ACTIVE)) { 11375 ctl_set_busy(&((union ctl_io *)io)-> 11376 scsiio); 11377 ctl_done((union ctl_io *)io); 11378 } 11379 } 11380 } 11381 ctl_check_blocked(lun); 11382 } 11383 mtx_unlock(&lun->lun_lock); 11384} 11385 11386static int 11387ctl_scsiio_precheck(struct ctl_softc *softc, struct ctl_scsiio *ctsio) 11388{ 11389 struct ctl_lun *lun; 11390 const struct ctl_cmd_entry *entry; 11391 uint32_t initidx, targ_lun; 11392 int retval; 11393 11394 retval = 0; 11395 11396 lun = NULL; 11397 11398 targ_lun = ctsio->io_hdr.nexus.targ_mapped_lun; 11399 if ((targ_lun < CTL_MAX_LUNS) 11400 && ((lun = softc->ctl_luns[targ_lun]) != NULL)) { 11401 /* 11402 * If the LUN is invalid, pretend that it doesn't exist. 11403 * It will go away as soon as all pending I/O has been 11404 * completed. 11405 */ 11406 mtx_lock(&lun->lun_lock); 11407 if (lun->flags & CTL_LUN_DISABLED) { 11408 mtx_unlock(&lun->lun_lock); 11409 lun = NULL; 11410 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr = NULL; 11411 ctsio->io_hdr.ctl_private[CTL_PRIV_BACKEND_LUN].ptr = NULL; 11412 } else { 11413 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr = lun; 11414 ctsio->io_hdr.ctl_private[CTL_PRIV_BACKEND_LUN].ptr = 11415 lun->be_lun; 11416 11417 /* 11418 * Every I/O goes into the OOA queue for a 11419 * particular LUN, and stays there until completion. 11420 */ 11421#ifdef CTL_TIME_IO 11422 if (TAILQ_EMPTY(&lun->ooa_queue)) { 11423 lun->idle_time += getsbinuptime() - 11424 lun->last_busy; 11425 } 11426#endif 11427 TAILQ_INSERT_TAIL(&lun->ooa_queue, &ctsio->io_hdr, 11428 ooa_links); 11429 } 11430 } else { 11431 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr = NULL; 11432 ctsio->io_hdr.ctl_private[CTL_PRIV_BACKEND_LUN].ptr = NULL; 11433 } 11434 11435 /* Get command entry and return error if it is unsuppotyed. */ 11436 entry = ctl_validate_command(ctsio); 11437 if (entry == NULL) { 11438 if (lun) 11439 mtx_unlock(&lun->lun_lock); 11440 return (retval); 11441 } 11442 11443 ctsio->io_hdr.flags &= ~CTL_FLAG_DATA_MASK; 11444 ctsio->io_hdr.flags |= entry->flags & CTL_FLAG_DATA_MASK; 11445 11446 /* 11447 * Check to see whether we can send this command to LUNs that don't 11448 * exist. This should pretty much only be the case for inquiry 11449 * and request sense. Further checks, below, really require having 11450 * a LUN, so we can't really check the command anymore. Just put 11451 * it on the rtr queue. 11452 */ 11453 if (lun == NULL) { 11454 if (entry->flags & CTL_CMD_FLAG_OK_ON_NO_LUN) { 11455 ctsio->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 11456 ctl_enqueue_rtr((union ctl_io *)ctsio); 11457 return (retval); 11458 } 11459 11460 ctl_set_unsupported_lun(ctsio); 11461 ctl_done((union ctl_io *)ctsio); 11462 CTL_DEBUG_PRINT(("ctl_scsiio_precheck: bailing out due to invalid LUN\n")); 11463 return (retval); 11464 } else { 11465 /* 11466 * Make sure we support this particular command on this LUN. 11467 * e.g., we don't support writes to the control LUN. 11468 */ 11469 if (!ctl_cmd_applicable(lun->be_lun->lun_type, entry)) { 11470 mtx_unlock(&lun->lun_lock); 11471 ctl_set_invalid_opcode(ctsio); 11472 ctl_done((union ctl_io *)ctsio); 11473 return (retval); 11474 } 11475 } 11476 11477 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 11478 11479#ifdef CTL_WITH_CA 11480 /* 11481 * If we've got a request sense, it'll clear the contingent 11482 * allegiance condition. Otherwise, if we have a CA condition for 11483 * this initiator, clear it, because it sent down a command other 11484 * than request sense. 11485 */ 11486 if ((ctsio->cdb[0] != REQUEST_SENSE) 11487 && (ctl_is_set(lun->have_ca, initidx))) 11488 ctl_clear_mask(lun->have_ca, initidx); 11489#endif 11490 11491 /* 11492 * If the command has this flag set, it handles its own unit 11493 * attention reporting, we shouldn't do anything. Otherwise we 11494 * check for any pending unit attentions, and send them back to the 11495 * initiator. We only do this when a command initially comes in, 11496 * not when we pull it off the blocked queue. 11497 * 11498 * According to SAM-3, section 5.3.2, the order that things get 11499 * presented back to the host is basically unit attentions caused 11500 * by some sort of reset event, busy status, reservation conflicts 11501 * or task set full, and finally any other status. 11502 * 11503 * One issue here is that some of the unit attentions we report 11504 * don't fall into the "reset" category (e.g. "reported luns data 11505 * has changed"). So reporting it here, before the reservation 11506 * check, may be technically wrong. I guess the only thing to do 11507 * would be to check for and report the reset events here, and then 11508 * check for the other unit attention types after we check for a 11509 * reservation conflict. 11510 * 11511 * XXX KDM need to fix this 11512 */ 11513 if ((entry->flags & CTL_CMD_FLAG_NO_SENSE) == 0) { 11514 ctl_ua_type ua_type; 11515 11516 ua_type = ctl_build_ua(lun, initidx, &ctsio->sense_data, 11517 SSD_TYPE_NONE); 11518 if (ua_type != CTL_UA_NONE) { 11519 mtx_unlock(&lun->lun_lock); 11520 ctsio->scsi_status = SCSI_STATUS_CHECK_COND; 11521 ctsio->io_hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 11522 ctsio->sense_len = SSD_FULL_SIZE; 11523 ctl_done((union ctl_io *)ctsio); 11524 return (retval); 11525 } 11526 } 11527 11528 11529 if (ctl_scsiio_lun_check(lun, entry, ctsio) != 0) { 11530 mtx_unlock(&lun->lun_lock); 11531 ctl_done((union ctl_io *)ctsio); 11532 return (retval); 11533 } 11534 11535 /* 11536 * XXX CHD this is where we want to send IO to other side if 11537 * this LUN is secondary on this SC. We will need to make a copy 11538 * of the IO and flag the IO on this side as SENT_2OTHER and the flag 11539 * the copy we send as FROM_OTHER. 11540 * We also need to stuff the address of the original IO so we can 11541 * find it easily. Something similar will need be done on the other 11542 * side so when we are done we can find the copy. 11543 */ 11544 if ((lun->flags & CTL_LUN_PRIMARY_SC) == 0 && 11545 (lun->flags & CTL_LUN_PEER_SC_PRIMARY) != 0 && 11546 (entry->flags & CTL_CMD_FLAG_RUN_HERE) == 0) { 11547 union ctl_ha_msg msg_info; 11548 int isc_retval; 11549 11550 ctsio->io_hdr.flags |= CTL_FLAG_SENT_2OTHER_SC; 11551 ctsio->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 11552 mtx_unlock(&lun->lun_lock); 11553 11554 msg_info.hdr.msg_type = CTL_MSG_SERIALIZE; 11555 msg_info.hdr.original_sc = (union ctl_io *)ctsio; 11556 msg_info.hdr.serializing_sc = NULL; 11557 msg_info.hdr.nexus = ctsio->io_hdr.nexus; 11558 msg_info.scsi.tag_num = ctsio->tag_num; 11559 msg_info.scsi.tag_type = ctsio->tag_type; 11560 msg_info.scsi.cdb_len = ctsio->cdb_len; 11561 memcpy(msg_info.scsi.cdb, ctsio->cdb, CTL_MAX_CDBLEN); 11562 11563 if ((isc_retval = ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 11564 sizeof(msg_info.scsi) - sizeof(msg_info.scsi.sense_data), 11565 M_WAITOK)) > CTL_HA_STATUS_SUCCESS) { 11566 ctl_set_busy(ctsio); 11567 ctl_done((union ctl_io *)ctsio); 11568 return (retval); 11569 } 11570 return (retval); 11571 } 11572 11573 switch (ctl_check_ooa(lun, (union ctl_io *)ctsio, 11574 (union ctl_io *)TAILQ_PREV(&ctsio->io_hdr, 11575 ctl_ooaq, ooa_links))) { 11576 case CTL_ACTION_BLOCK: 11577 ctsio->io_hdr.flags |= CTL_FLAG_BLOCKED; 11578 TAILQ_INSERT_TAIL(&lun->blocked_queue, &ctsio->io_hdr, 11579 blocked_links); 11580 mtx_unlock(&lun->lun_lock); 11581 return (retval); 11582 case CTL_ACTION_PASS: 11583 case CTL_ACTION_SKIP: 11584 ctsio->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 11585 mtx_unlock(&lun->lun_lock); 11586 ctl_enqueue_rtr((union ctl_io *)ctsio); 11587 break; 11588 case CTL_ACTION_OVERLAP: 11589 mtx_unlock(&lun->lun_lock); 11590 ctl_set_overlapped_cmd(ctsio); 11591 ctl_done((union ctl_io *)ctsio); 11592 break; 11593 case CTL_ACTION_OVERLAP_TAG: 11594 mtx_unlock(&lun->lun_lock); 11595 ctl_set_overlapped_tag(ctsio, ctsio->tag_num & 0xff); 11596 ctl_done((union ctl_io *)ctsio); 11597 break; 11598 case CTL_ACTION_ERROR: 11599 default: 11600 mtx_unlock(&lun->lun_lock); 11601 ctl_set_internal_failure(ctsio, 11602 /*sks_valid*/ 0, 11603 /*retry_count*/ 0); 11604 ctl_done((union ctl_io *)ctsio); 11605 break; 11606 } 11607 return (retval); 11608} 11609 11610const struct ctl_cmd_entry * 11611ctl_get_cmd_entry(struct ctl_scsiio *ctsio, int *sa) 11612{ 11613 const struct ctl_cmd_entry *entry; 11614 int service_action; 11615 11616 entry = &ctl_cmd_table[ctsio->cdb[0]]; 11617 if (sa) 11618 *sa = ((entry->flags & CTL_CMD_FLAG_SA5) != 0); 11619 if (entry->flags & CTL_CMD_FLAG_SA5) { 11620 service_action = ctsio->cdb[1] & SERVICE_ACTION_MASK; 11621 entry = &((const struct ctl_cmd_entry *) 11622 entry->execute)[service_action]; 11623 } 11624 return (entry); 11625} 11626 11627const struct ctl_cmd_entry * 11628ctl_validate_command(struct ctl_scsiio *ctsio) 11629{ 11630 const struct ctl_cmd_entry *entry; 11631 int i, sa; 11632 uint8_t diff; 11633 11634 entry = ctl_get_cmd_entry(ctsio, &sa); 11635 if (entry->execute == NULL) { 11636 if (sa) 11637 ctl_set_invalid_field(ctsio, 11638 /*sks_valid*/ 1, 11639 /*command*/ 1, 11640 /*field*/ 1, 11641 /*bit_valid*/ 1, 11642 /*bit*/ 4); 11643 else 11644 ctl_set_invalid_opcode(ctsio); 11645 ctl_done((union ctl_io *)ctsio); 11646 return (NULL); 11647 } 11648 KASSERT(entry->length > 0, 11649 ("Not defined length for command 0x%02x/0x%02x", 11650 ctsio->cdb[0], ctsio->cdb[1])); 11651 for (i = 1; i < entry->length; i++) { 11652 diff = ctsio->cdb[i] & ~entry->usage[i - 1]; 11653 if (diff == 0) 11654 continue; 11655 ctl_set_invalid_field(ctsio, 11656 /*sks_valid*/ 1, 11657 /*command*/ 1, 11658 /*field*/ i, 11659 /*bit_valid*/ 1, 11660 /*bit*/ fls(diff) - 1); 11661 ctl_done((union ctl_io *)ctsio); 11662 return (NULL); 11663 } 11664 return (entry); 11665} 11666 11667static int 11668ctl_cmd_applicable(uint8_t lun_type, const struct ctl_cmd_entry *entry) 11669{ 11670 11671 switch (lun_type) { 11672 case T_DIRECT: 11673 if ((entry->flags & CTL_CMD_FLAG_OK_ON_DIRECT) == 0) 11674 return (0); 11675 break; 11676 case T_PROCESSOR: 11677 if ((entry->flags & CTL_CMD_FLAG_OK_ON_PROC) == 0) 11678 return (0); 11679 break; 11680 case T_CDROM: 11681 if ((entry->flags & CTL_CMD_FLAG_OK_ON_CDROM) == 0) 11682 return (0); 11683 break; 11684 default: 11685 return (0); 11686 } 11687 return (1); 11688} 11689 11690static int 11691ctl_scsiio(struct ctl_scsiio *ctsio) 11692{ 11693 int retval; 11694 const struct ctl_cmd_entry *entry; 11695 11696 retval = CTL_RETVAL_COMPLETE; 11697 11698 CTL_DEBUG_PRINT(("ctl_scsiio cdb[0]=%02X\n", ctsio->cdb[0])); 11699 11700 entry = ctl_get_cmd_entry(ctsio, NULL); 11701 11702 /* 11703 * If this I/O has been aborted, just send it straight to 11704 * ctl_done() without executing it. 11705 */ 11706 if (ctsio->io_hdr.flags & CTL_FLAG_ABORT) { 11707 ctl_done((union ctl_io *)ctsio); 11708 goto bailout; 11709 } 11710 11711 /* 11712 * All the checks should have been handled by ctl_scsiio_precheck(). 11713 * We should be clear now to just execute the I/O. 11714 */ 11715 retval = entry->execute(ctsio); 11716 11717bailout: 11718 return (retval); 11719} 11720 11721/* 11722 * Since we only implement one target right now, a bus reset simply resets 11723 * our single target. 11724 */ 11725static int 11726ctl_bus_reset(struct ctl_softc *softc, union ctl_io *io) 11727{ 11728 return(ctl_target_reset(softc, io, CTL_UA_BUS_RESET)); 11729} 11730 11731static int 11732ctl_target_reset(struct ctl_softc *softc, union ctl_io *io, 11733 ctl_ua_type ua_type) 11734{ 11735 struct ctl_port *port; 11736 struct ctl_lun *lun; 11737 int retval; 11738 11739 if (!(io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)) { 11740 union ctl_ha_msg msg_info; 11741 11742 msg_info.hdr.nexus = io->io_hdr.nexus; 11743 if (ua_type==CTL_UA_TARG_RESET) 11744 msg_info.task.task_action = CTL_TASK_TARGET_RESET; 11745 else 11746 msg_info.task.task_action = CTL_TASK_BUS_RESET; 11747 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 11748 msg_info.hdr.original_sc = NULL; 11749 msg_info.hdr.serializing_sc = NULL; 11750 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 11751 sizeof(msg_info.task), M_WAITOK); 11752 } 11753 retval = 0; 11754 11755 mtx_lock(&softc->ctl_lock); 11756 port = ctl_io_port(&io->io_hdr); 11757 STAILQ_FOREACH(lun, &softc->lun_list, links) { 11758 if (port != NULL && 11759 ctl_lun_map_to_port(port, lun->lun) >= CTL_MAX_LUNS) 11760 continue; 11761 retval += ctl_do_lun_reset(lun, io, ua_type); 11762 } 11763 mtx_unlock(&softc->ctl_lock); 11764 io->taskio.task_status = CTL_TASK_FUNCTION_COMPLETE; 11765 return (retval); 11766} 11767 11768/* 11769 * The LUN should always be set. The I/O is optional, and is used to 11770 * distinguish between I/Os sent by this initiator, and by other 11771 * initiators. We set unit attention for initiators other than this one. 11772 * SAM-3 is vague on this point. It does say that a unit attention should 11773 * be established for other initiators when a LUN is reset (see section 11774 * 5.7.3), but it doesn't specifically say that the unit attention should 11775 * be established for this particular initiator when a LUN is reset. Here 11776 * is the relevant text, from SAM-3 rev 8: 11777 * 11778 * 5.7.2 When a SCSI initiator port aborts its own tasks 11779 * 11780 * When a SCSI initiator port causes its own task(s) to be aborted, no 11781 * notification that the task(s) have been aborted shall be returned to 11782 * the SCSI initiator port other than the completion response for the 11783 * command or task management function action that caused the task(s) to 11784 * be aborted and notification(s) associated with related effects of the 11785 * action (e.g., a reset unit attention condition). 11786 * 11787 * XXX KDM for now, we're setting unit attention for all initiators. 11788 */ 11789static int 11790ctl_do_lun_reset(struct ctl_lun *lun, union ctl_io *io, ctl_ua_type ua_type) 11791{ 11792 union ctl_io *xio; 11793#if 0 11794 uint32_t initidx; 11795#endif 11796#ifdef CTL_WITH_CA 11797 int i; 11798#endif 11799 11800 mtx_lock(&lun->lun_lock); 11801 /* 11802 * Run through the OOA queue and abort each I/O. 11803 */ 11804 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 11805 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 11806 xio->io_hdr.flags |= CTL_FLAG_ABORT | CTL_FLAG_ABORT_STATUS; 11807 } 11808 11809 /* 11810 * This version sets unit attention for every 11811 */ 11812#if 0 11813 initidx = ctl_get_initindex(&io->io_hdr.nexus); 11814 ctl_est_ua_all(lun, initidx, ua_type); 11815#else 11816 ctl_est_ua_all(lun, -1, ua_type); 11817#endif 11818 11819 /* 11820 * A reset (any kind, really) clears reservations established with 11821 * RESERVE/RELEASE. It does not clear reservations established 11822 * with PERSISTENT RESERVE OUT, but we don't support that at the 11823 * moment anyway. See SPC-2, section 5.6. SPC-3 doesn't address 11824 * reservations made with the RESERVE/RELEASE commands, because 11825 * those commands are obsolete in SPC-3. 11826 */ 11827 lun->flags &= ~CTL_LUN_RESERVED; 11828 11829#ifdef CTL_WITH_CA 11830 for (i = 0; i < CTL_MAX_INITIATORS; i++) 11831 ctl_clear_mask(lun->have_ca, i); 11832#endif 11833 mtx_unlock(&lun->lun_lock); 11834 11835 return (0); 11836} 11837 11838static int 11839ctl_lun_reset(struct ctl_softc *softc, union ctl_io *io) 11840{ 11841 struct ctl_lun *lun; 11842 uint32_t targ_lun; 11843 int retval; 11844 11845 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 11846 mtx_lock(&softc->ctl_lock); 11847 if ((targ_lun >= CTL_MAX_LUNS) || 11848 (lun = softc->ctl_luns[targ_lun]) == NULL) { 11849 mtx_unlock(&softc->ctl_lock); 11850 io->taskio.task_status = CTL_TASK_LUN_DOES_NOT_EXIST; 11851 return (1); 11852 } 11853 retval = ctl_do_lun_reset(lun, io, CTL_UA_LUN_RESET); 11854 mtx_unlock(&softc->ctl_lock); 11855 io->taskio.task_status = CTL_TASK_FUNCTION_COMPLETE; 11856 11857 if ((io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) == 0) { 11858 union ctl_ha_msg msg_info; 11859 11860 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 11861 msg_info.hdr.nexus = io->io_hdr.nexus; 11862 msg_info.task.task_action = CTL_TASK_LUN_RESET; 11863 msg_info.hdr.original_sc = NULL; 11864 msg_info.hdr.serializing_sc = NULL; 11865 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 11866 sizeof(msg_info.task), M_WAITOK); 11867 } 11868 return (retval); 11869} 11870 11871static void 11872ctl_abort_tasks_lun(struct ctl_lun *lun, uint32_t targ_port, uint32_t init_id, 11873 int other_sc) 11874{ 11875 union ctl_io *xio; 11876 11877 mtx_assert(&lun->lun_lock, MA_OWNED); 11878 11879 /* 11880 * Run through the OOA queue and attempt to find the given I/O. 11881 * The target port, initiator ID, tag type and tag number have to 11882 * match the values that we got from the initiator. If we have an 11883 * untagged command to abort, simply abort the first untagged command 11884 * we come to. We only allow one untagged command at a time of course. 11885 */ 11886 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 11887 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 11888 11889 if ((targ_port == UINT32_MAX || 11890 targ_port == xio->io_hdr.nexus.targ_port) && 11891 (init_id == UINT32_MAX || 11892 init_id == xio->io_hdr.nexus.initid)) { 11893 if (targ_port != xio->io_hdr.nexus.targ_port || 11894 init_id != xio->io_hdr.nexus.initid) 11895 xio->io_hdr.flags |= CTL_FLAG_ABORT_STATUS; 11896 xio->io_hdr.flags |= CTL_FLAG_ABORT; 11897 if (!other_sc && !(lun->flags & CTL_LUN_PRIMARY_SC)) { 11898 union ctl_ha_msg msg_info; 11899 11900 msg_info.hdr.nexus = xio->io_hdr.nexus; 11901 msg_info.task.task_action = CTL_TASK_ABORT_TASK; 11902 msg_info.task.tag_num = xio->scsiio.tag_num; 11903 msg_info.task.tag_type = xio->scsiio.tag_type; 11904 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 11905 msg_info.hdr.original_sc = NULL; 11906 msg_info.hdr.serializing_sc = NULL; 11907 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 11908 sizeof(msg_info.task), M_NOWAIT); 11909 } 11910 } 11911 } 11912} 11913 11914static int 11915ctl_abort_task_set(union ctl_io *io) 11916{ 11917 struct ctl_softc *softc = control_softc; 11918 struct ctl_lun *lun; 11919 uint32_t targ_lun; 11920 11921 /* 11922 * Look up the LUN. 11923 */ 11924 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 11925 mtx_lock(&softc->ctl_lock); 11926 if ((targ_lun >= CTL_MAX_LUNS) || 11927 (lun = softc->ctl_luns[targ_lun]) == NULL) { 11928 mtx_unlock(&softc->ctl_lock); 11929 io->taskio.task_status = CTL_TASK_LUN_DOES_NOT_EXIST; 11930 return (1); 11931 } 11932 11933 mtx_lock(&lun->lun_lock); 11934 mtx_unlock(&softc->ctl_lock); 11935 if (io->taskio.task_action == CTL_TASK_ABORT_TASK_SET) { 11936 ctl_abort_tasks_lun(lun, io->io_hdr.nexus.targ_port, 11937 io->io_hdr.nexus.initid, 11938 (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) != 0); 11939 } else { /* CTL_TASK_CLEAR_TASK_SET */ 11940 ctl_abort_tasks_lun(lun, UINT32_MAX, UINT32_MAX, 11941 (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) != 0); 11942 } 11943 mtx_unlock(&lun->lun_lock); 11944 io->taskio.task_status = CTL_TASK_FUNCTION_COMPLETE; 11945 return (0); 11946} 11947 11948static int 11949ctl_i_t_nexus_reset(union ctl_io *io) 11950{ 11951 struct ctl_softc *softc = control_softc; 11952 struct ctl_lun *lun; 11953 uint32_t initidx; 11954 11955 if (!(io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)) { 11956 union ctl_ha_msg msg_info; 11957 11958 msg_info.hdr.nexus = io->io_hdr.nexus; 11959 msg_info.task.task_action = CTL_TASK_I_T_NEXUS_RESET; 11960 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 11961 msg_info.hdr.original_sc = NULL; 11962 msg_info.hdr.serializing_sc = NULL; 11963 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 11964 sizeof(msg_info.task), M_WAITOK); 11965 } 11966 11967 initidx = ctl_get_initindex(&io->io_hdr.nexus); 11968 mtx_lock(&softc->ctl_lock); 11969 STAILQ_FOREACH(lun, &softc->lun_list, links) { 11970 mtx_lock(&lun->lun_lock); 11971 ctl_abort_tasks_lun(lun, io->io_hdr.nexus.targ_port, 11972 io->io_hdr.nexus.initid, 1); 11973#ifdef CTL_WITH_CA 11974 ctl_clear_mask(lun->have_ca, initidx); 11975#endif 11976 if ((lun->flags & CTL_LUN_RESERVED) && (lun->res_idx == initidx)) 11977 lun->flags &= ~CTL_LUN_RESERVED; 11978 ctl_est_ua(lun, initidx, CTL_UA_I_T_NEXUS_LOSS); 11979 mtx_unlock(&lun->lun_lock); 11980 } 11981 mtx_unlock(&softc->ctl_lock); 11982 io->taskio.task_status = CTL_TASK_FUNCTION_COMPLETE; 11983 return (0); 11984} 11985 11986static int 11987ctl_abort_task(union ctl_io *io) 11988{ 11989 union ctl_io *xio; 11990 struct ctl_lun *lun; 11991 struct ctl_softc *softc; 11992#if 0 11993 struct sbuf sb; 11994 char printbuf[128]; 11995#endif 11996 int found; 11997 uint32_t targ_lun; 11998 11999 softc = control_softc; 12000 found = 0; 12001 12002 /* 12003 * Look up the LUN. 12004 */ 12005 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12006 mtx_lock(&softc->ctl_lock); 12007 if ((targ_lun >= CTL_MAX_LUNS) || 12008 (lun = softc->ctl_luns[targ_lun]) == NULL) { 12009 mtx_unlock(&softc->ctl_lock); 12010 io->taskio.task_status = CTL_TASK_LUN_DOES_NOT_EXIST; 12011 return (1); 12012 } 12013 12014#if 0 12015 printf("ctl_abort_task: called for lun %lld, tag %d type %d\n", 12016 lun->lun, io->taskio.tag_num, io->taskio.tag_type); 12017#endif 12018 12019 mtx_lock(&lun->lun_lock); 12020 mtx_unlock(&softc->ctl_lock); 12021 /* 12022 * Run through the OOA queue and attempt to find the given I/O. 12023 * The target port, initiator ID, tag type and tag number have to 12024 * match the values that we got from the initiator. If we have an 12025 * untagged command to abort, simply abort the first untagged command 12026 * we come to. We only allow one untagged command at a time of course. 12027 */ 12028 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 12029 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 12030#if 0 12031 sbuf_new(&sb, printbuf, sizeof(printbuf), SBUF_FIXEDLEN); 12032 12033 sbuf_printf(&sb, "LUN %lld tag %d type %d%s%s%s%s: ", 12034 lun->lun, xio->scsiio.tag_num, 12035 xio->scsiio.tag_type, 12036 (xio->io_hdr.blocked_links.tqe_prev 12037 == NULL) ? "" : " BLOCKED", 12038 (xio->io_hdr.flags & 12039 CTL_FLAG_DMA_INPROG) ? " DMA" : "", 12040 (xio->io_hdr.flags & 12041 CTL_FLAG_ABORT) ? " ABORT" : "", 12042 (xio->io_hdr.flags & 12043 CTL_FLAG_IS_WAS_ON_RTR ? " RTR" : "")); 12044 ctl_scsi_command_string(&xio->scsiio, NULL, &sb); 12045 sbuf_finish(&sb); 12046 printf("%s\n", sbuf_data(&sb)); 12047#endif 12048 12049 if ((xio->io_hdr.nexus.targ_port != io->io_hdr.nexus.targ_port) 12050 || (xio->io_hdr.nexus.initid != io->io_hdr.nexus.initid) 12051 || (xio->io_hdr.flags & CTL_FLAG_ABORT)) 12052 continue; 12053 12054 /* 12055 * If the abort says that the task is untagged, the 12056 * task in the queue must be untagged. Otherwise, 12057 * we just check to see whether the tag numbers 12058 * match. This is because the QLogic firmware 12059 * doesn't pass back the tag type in an abort 12060 * request. 12061 */ 12062#if 0 12063 if (((xio->scsiio.tag_type == CTL_TAG_UNTAGGED) 12064 && (io->taskio.tag_type == CTL_TAG_UNTAGGED)) 12065 || (xio->scsiio.tag_num == io->taskio.tag_num)) 12066#endif 12067 /* 12068 * XXX KDM we've got problems with FC, because it 12069 * doesn't send down a tag type with aborts. So we 12070 * can only really go by the tag number... 12071 * This may cause problems with parallel SCSI. 12072 * Need to figure that out!! 12073 */ 12074 if (xio->scsiio.tag_num == io->taskio.tag_num) { 12075 xio->io_hdr.flags |= CTL_FLAG_ABORT; 12076 found = 1; 12077 if ((io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) == 0 && 12078 !(lun->flags & CTL_LUN_PRIMARY_SC)) { 12079 union ctl_ha_msg msg_info; 12080 12081 msg_info.hdr.nexus = io->io_hdr.nexus; 12082 msg_info.task.task_action = CTL_TASK_ABORT_TASK; 12083 msg_info.task.tag_num = io->taskio.tag_num; 12084 msg_info.task.tag_type = io->taskio.tag_type; 12085 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 12086 msg_info.hdr.original_sc = NULL; 12087 msg_info.hdr.serializing_sc = NULL; 12088#if 0 12089 printf("Sent Abort to other side\n"); 12090#endif 12091 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 12092 sizeof(msg_info.task), M_NOWAIT); 12093 } 12094#if 0 12095 printf("ctl_abort_task: found I/O to abort\n"); 12096#endif 12097 } 12098 } 12099 mtx_unlock(&lun->lun_lock); 12100 12101 if (found == 0) { 12102 /* 12103 * This isn't really an error. It's entirely possible for 12104 * the abort and command completion to cross on the wire. 12105 * This is more of an informative/diagnostic error. 12106 */ 12107#if 0 12108 printf("ctl_abort_task: ABORT sent for nonexistent I/O: " 12109 "%u:%u:%u tag %d type %d\n", 12110 io->io_hdr.nexus.initid, 12111 io->io_hdr.nexus.targ_port, 12112 io->io_hdr.nexus.targ_lun, io->taskio.tag_num, 12113 io->taskio.tag_type); 12114#endif 12115 } 12116 io->taskio.task_status = CTL_TASK_FUNCTION_COMPLETE; 12117 return (0); 12118} 12119 12120static int 12121ctl_query_task(union ctl_io *io, int task_set) 12122{ 12123 union ctl_io *xio; 12124 struct ctl_lun *lun; 12125 struct ctl_softc *softc; 12126 int found = 0; 12127 uint32_t targ_lun; 12128 12129 softc = control_softc; 12130 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12131 mtx_lock(&softc->ctl_lock); 12132 if ((targ_lun >= CTL_MAX_LUNS) || 12133 (lun = softc->ctl_luns[targ_lun]) == NULL) { 12134 mtx_unlock(&softc->ctl_lock); 12135 io->taskio.task_status = CTL_TASK_LUN_DOES_NOT_EXIST; 12136 return (1); 12137 } 12138 mtx_lock(&lun->lun_lock); 12139 mtx_unlock(&softc->ctl_lock); 12140 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 12141 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 12142 12143 if ((xio->io_hdr.nexus.targ_port != io->io_hdr.nexus.targ_port) 12144 || (xio->io_hdr.nexus.initid != io->io_hdr.nexus.initid) 12145 || (xio->io_hdr.flags & CTL_FLAG_ABORT)) 12146 continue; 12147 12148 if (task_set || xio->scsiio.tag_num == io->taskio.tag_num) { 12149 found = 1; 12150 break; 12151 } 12152 } 12153 mtx_unlock(&lun->lun_lock); 12154 if (found) 12155 io->taskio.task_status = CTL_TASK_FUNCTION_SUCCEEDED; 12156 else 12157 io->taskio.task_status = CTL_TASK_FUNCTION_COMPLETE; 12158 return (0); 12159} 12160 12161static int 12162ctl_query_async_event(union ctl_io *io) 12163{ 12164 struct ctl_lun *lun; 12165 struct ctl_softc *softc; 12166 ctl_ua_type ua; 12167 uint32_t targ_lun, initidx; 12168 12169 softc = control_softc; 12170 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12171 mtx_lock(&softc->ctl_lock); 12172 if ((targ_lun >= CTL_MAX_LUNS) || 12173 (lun = softc->ctl_luns[targ_lun]) == NULL) { 12174 mtx_unlock(&softc->ctl_lock); 12175 io->taskio.task_status = CTL_TASK_LUN_DOES_NOT_EXIST; 12176 return (1); 12177 } 12178 mtx_lock(&lun->lun_lock); 12179 mtx_unlock(&softc->ctl_lock); 12180 initidx = ctl_get_initindex(&io->io_hdr.nexus); 12181 ua = ctl_build_qae(lun, initidx, io->taskio.task_resp); 12182 mtx_unlock(&lun->lun_lock); 12183 if (ua != CTL_UA_NONE) 12184 io->taskio.task_status = CTL_TASK_FUNCTION_SUCCEEDED; 12185 else 12186 io->taskio.task_status = CTL_TASK_FUNCTION_COMPLETE; 12187 return (0); 12188} 12189 12190static void 12191ctl_run_task(union ctl_io *io) 12192{ 12193 struct ctl_softc *softc = control_softc; 12194 int retval = 1; 12195 12196 CTL_DEBUG_PRINT(("ctl_run_task\n")); 12197 KASSERT(io->io_hdr.io_type == CTL_IO_TASK, 12198 ("ctl_run_task: Unextected io_type %d\n", io->io_hdr.io_type)); 12199 io->taskio.task_status = CTL_TASK_FUNCTION_NOT_SUPPORTED; 12200 bzero(io->taskio.task_resp, sizeof(io->taskio.task_resp)); 12201 switch (io->taskio.task_action) { 12202 case CTL_TASK_ABORT_TASK: 12203 retval = ctl_abort_task(io); 12204 break; 12205 case CTL_TASK_ABORT_TASK_SET: 12206 case CTL_TASK_CLEAR_TASK_SET: 12207 retval = ctl_abort_task_set(io); 12208 break; 12209 case CTL_TASK_CLEAR_ACA: 12210 break; 12211 case CTL_TASK_I_T_NEXUS_RESET: 12212 retval = ctl_i_t_nexus_reset(io); 12213 break; 12214 case CTL_TASK_LUN_RESET: 12215 retval = ctl_lun_reset(softc, io); 12216 break; 12217 case CTL_TASK_TARGET_RESET: 12218 retval = ctl_target_reset(softc, io, CTL_UA_TARG_RESET); 12219 break; 12220 case CTL_TASK_BUS_RESET: 12221 retval = ctl_bus_reset(softc, io); 12222 break; 12223 case CTL_TASK_PORT_LOGIN: 12224 break; 12225 case CTL_TASK_PORT_LOGOUT: 12226 break; 12227 case CTL_TASK_QUERY_TASK: 12228 retval = ctl_query_task(io, 0); 12229 break; 12230 case CTL_TASK_QUERY_TASK_SET: 12231 retval = ctl_query_task(io, 1); 12232 break; 12233 case CTL_TASK_QUERY_ASYNC_EVENT: 12234 retval = ctl_query_async_event(io); 12235 break; 12236 default: 12237 printf("%s: got unknown task management event %d\n", 12238 __func__, io->taskio.task_action); 12239 break; 12240 } 12241 if (retval == 0) 12242 io->io_hdr.status = CTL_SUCCESS; 12243 else 12244 io->io_hdr.status = CTL_ERROR; 12245 ctl_done(io); 12246} 12247 12248/* 12249 * For HA operation. Handle commands that come in from the other 12250 * controller. 12251 */ 12252static void 12253ctl_handle_isc(union ctl_io *io) 12254{ 12255 int free_io; 12256 struct ctl_lun *lun; 12257 struct ctl_softc *softc = control_softc; 12258 uint32_t targ_lun; 12259 12260 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12261 lun = softc->ctl_luns[targ_lun]; 12262 12263 switch (io->io_hdr.msg_type) { 12264 case CTL_MSG_SERIALIZE: 12265 free_io = ctl_serialize_other_sc_cmd(&io->scsiio); 12266 break; 12267 case CTL_MSG_R2R: { 12268 const struct ctl_cmd_entry *entry; 12269 12270 /* 12271 * This is only used in SER_ONLY mode. 12272 */ 12273 free_io = 0; 12274 entry = ctl_get_cmd_entry(&io->scsiio, NULL); 12275 mtx_lock(&lun->lun_lock); 12276 if (ctl_scsiio_lun_check(lun, 12277 entry, (struct ctl_scsiio *)io) != 0) { 12278 mtx_unlock(&lun->lun_lock); 12279 ctl_done(io); 12280 break; 12281 } 12282 io->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 12283 mtx_unlock(&lun->lun_lock); 12284 ctl_enqueue_rtr(io); 12285 break; 12286 } 12287 case CTL_MSG_FINISH_IO: 12288 if (softc->ha_mode == CTL_HA_MODE_XFER) { 12289 free_io = 0; 12290 ctl_done(io); 12291 } else { 12292 free_io = 1; 12293 mtx_lock(&lun->lun_lock); 12294 TAILQ_REMOVE(&lun->ooa_queue, &io->io_hdr, 12295 ooa_links); 12296 ctl_check_blocked(lun); 12297 mtx_unlock(&lun->lun_lock); 12298 } 12299 break; 12300 case CTL_MSG_PERS_ACTION: 12301 ctl_hndl_per_res_out_on_other_sc( 12302 (union ctl_ha_msg *)&io->presio.pr_msg); 12303 free_io = 1; 12304 break; 12305 case CTL_MSG_BAD_JUJU: 12306 free_io = 0; 12307 ctl_done(io); 12308 break; 12309 case CTL_MSG_DATAMOVE: 12310 /* Only used in XFER mode */ 12311 free_io = 0; 12312 ctl_datamove_remote(io); 12313 break; 12314 case CTL_MSG_DATAMOVE_DONE: 12315 /* Only used in XFER mode */ 12316 free_io = 0; 12317 io->scsiio.be_move_done(io); 12318 break; 12319 case CTL_MSG_FAILOVER: 12320 ctl_failover_lun(io); 12321 free_io = 1; 12322 break; 12323 default: 12324 free_io = 1; 12325 printf("%s: Invalid message type %d\n", 12326 __func__, io->io_hdr.msg_type); 12327 break; 12328 } 12329 if (free_io) 12330 ctl_free_io(io); 12331 12332} 12333 12334 12335/* 12336 * Returns the match type in the case of a match, or CTL_LUN_PAT_NONE if 12337 * there is no match. 12338 */ 12339static ctl_lun_error_pattern 12340ctl_cmd_pattern_match(struct ctl_scsiio *ctsio, struct ctl_error_desc *desc) 12341{ 12342 const struct ctl_cmd_entry *entry; 12343 ctl_lun_error_pattern filtered_pattern, pattern; 12344 12345 pattern = desc->error_pattern; 12346 12347 /* 12348 * XXX KDM we need more data passed into this function to match a 12349 * custom pattern, and we actually need to implement custom pattern 12350 * matching. 12351 */ 12352 if (pattern & CTL_LUN_PAT_CMD) 12353 return (CTL_LUN_PAT_CMD); 12354 12355 if ((pattern & CTL_LUN_PAT_MASK) == CTL_LUN_PAT_ANY) 12356 return (CTL_LUN_PAT_ANY); 12357 12358 entry = ctl_get_cmd_entry(ctsio, NULL); 12359 12360 filtered_pattern = entry->pattern & pattern; 12361 12362 /* 12363 * If the user requested specific flags in the pattern (e.g. 12364 * CTL_LUN_PAT_RANGE), make sure the command supports all of those 12365 * flags. 12366 * 12367 * If the user did not specify any flags, it doesn't matter whether 12368 * or not the command supports the flags. 12369 */ 12370 if ((filtered_pattern & ~CTL_LUN_PAT_MASK) != 12371 (pattern & ~CTL_LUN_PAT_MASK)) 12372 return (CTL_LUN_PAT_NONE); 12373 12374 /* 12375 * If the user asked for a range check, see if the requested LBA 12376 * range overlaps with this command's LBA range. 12377 */ 12378 if (filtered_pattern & CTL_LUN_PAT_RANGE) { 12379 uint64_t lba1; 12380 uint64_t len1; 12381 ctl_action action; 12382 int retval; 12383 12384 retval = ctl_get_lba_len((union ctl_io *)ctsio, &lba1, &len1); 12385 if (retval != 0) 12386 return (CTL_LUN_PAT_NONE); 12387 12388 action = ctl_extent_check_lba(lba1, len1, desc->lba_range.lba, 12389 desc->lba_range.len, FALSE); 12390 /* 12391 * A "pass" means that the LBA ranges don't overlap, so 12392 * this doesn't match the user's range criteria. 12393 */ 12394 if (action == CTL_ACTION_PASS) 12395 return (CTL_LUN_PAT_NONE); 12396 } 12397 12398 return (filtered_pattern); 12399} 12400 12401static void 12402ctl_inject_error(struct ctl_lun *lun, union ctl_io *io) 12403{ 12404 struct ctl_error_desc *desc, *desc2; 12405 12406 mtx_assert(&lun->lun_lock, MA_OWNED); 12407 12408 STAILQ_FOREACH_SAFE(desc, &lun->error_list, links, desc2) { 12409 ctl_lun_error_pattern pattern; 12410 /* 12411 * Check to see whether this particular command matches 12412 * the pattern in the descriptor. 12413 */ 12414 pattern = ctl_cmd_pattern_match(&io->scsiio, desc); 12415 if ((pattern & CTL_LUN_PAT_MASK) == CTL_LUN_PAT_NONE) 12416 continue; 12417 12418 switch (desc->lun_error & CTL_LUN_INJ_TYPE) { 12419 case CTL_LUN_INJ_ABORTED: 12420 ctl_set_aborted(&io->scsiio); 12421 break; 12422 case CTL_LUN_INJ_MEDIUM_ERR: 12423 ctl_set_medium_error(&io->scsiio, 12424 (io->io_hdr.flags & CTL_FLAG_DATA_MASK) != 12425 CTL_FLAG_DATA_OUT); 12426 break; 12427 case CTL_LUN_INJ_UA: 12428 /* 29h/00h POWER ON, RESET, OR BUS DEVICE RESET 12429 * OCCURRED */ 12430 ctl_set_ua(&io->scsiio, 0x29, 0x00); 12431 break; 12432 case CTL_LUN_INJ_CUSTOM: 12433 /* 12434 * We're assuming the user knows what he is doing. 12435 * Just copy the sense information without doing 12436 * checks. 12437 */ 12438 bcopy(&desc->custom_sense, &io->scsiio.sense_data, 12439 MIN(sizeof(desc->custom_sense), 12440 sizeof(io->scsiio.sense_data))); 12441 io->scsiio.scsi_status = SCSI_STATUS_CHECK_COND; 12442 io->scsiio.sense_len = SSD_FULL_SIZE; 12443 io->io_hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 12444 break; 12445 case CTL_LUN_INJ_NONE: 12446 default: 12447 /* 12448 * If this is an error injection type we don't know 12449 * about, clear the continuous flag (if it is set) 12450 * so it will get deleted below. 12451 */ 12452 desc->lun_error &= ~CTL_LUN_INJ_CONTINUOUS; 12453 break; 12454 } 12455 /* 12456 * By default, each error injection action is a one-shot 12457 */ 12458 if (desc->lun_error & CTL_LUN_INJ_CONTINUOUS) 12459 continue; 12460 12461 STAILQ_REMOVE(&lun->error_list, desc, ctl_error_desc, links); 12462 12463 free(desc, M_CTL); 12464 } 12465} 12466 12467#ifdef CTL_IO_DELAY 12468static void 12469ctl_datamove_timer_wakeup(void *arg) 12470{ 12471 union ctl_io *io; 12472 12473 io = (union ctl_io *)arg; 12474 12475 ctl_datamove(io); 12476} 12477#endif /* CTL_IO_DELAY */ 12478 12479void 12480ctl_datamove(union ctl_io *io) 12481{ 12482 struct ctl_lun *lun; 12483 void (*fe_datamove)(union ctl_io *io); 12484 12485 mtx_assert(&control_softc->ctl_lock, MA_NOTOWNED); 12486 12487 CTL_DEBUG_PRINT(("ctl_datamove\n")); 12488 12489 lun = (struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 12490#ifdef CTL_TIME_IO 12491 if ((time_uptime - io->io_hdr.start_time) > ctl_time_io_secs) { 12492 char str[256]; 12493 char path_str[64]; 12494 struct sbuf sb; 12495 12496 ctl_scsi_path_string(io, path_str, sizeof(path_str)); 12497 sbuf_new(&sb, str, sizeof(str), SBUF_FIXEDLEN); 12498 12499 sbuf_cat(&sb, path_str); 12500 switch (io->io_hdr.io_type) { 12501 case CTL_IO_SCSI: 12502 ctl_scsi_command_string(&io->scsiio, NULL, &sb); 12503 sbuf_printf(&sb, "\n"); 12504 sbuf_cat(&sb, path_str); 12505 sbuf_printf(&sb, "Tag: 0x%04x, type %d\n", 12506 io->scsiio.tag_num, io->scsiio.tag_type); 12507 break; 12508 case CTL_IO_TASK: 12509 sbuf_printf(&sb, "Task I/O type: %d, Tag: 0x%04x, " 12510 "Tag Type: %d\n", io->taskio.task_action, 12511 io->taskio.tag_num, io->taskio.tag_type); 12512 break; 12513 default: 12514 printf("Invalid CTL I/O type %d\n", io->io_hdr.io_type); 12515 panic("Invalid CTL I/O type %d\n", io->io_hdr.io_type); 12516 break; 12517 } 12518 sbuf_cat(&sb, path_str); 12519 sbuf_printf(&sb, "ctl_datamove: %jd seconds\n", 12520 (intmax_t)time_uptime - io->io_hdr.start_time); 12521 sbuf_finish(&sb); 12522 printf("%s", sbuf_data(&sb)); 12523 } 12524#endif /* CTL_TIME_IO */ 12525 12526#ifdef CTL_IO_DELAY 12527 if (io->io_hdr.flags & CTL_FLAG_DELAY_DONE) { 12528 io->io_hdr.flags &= ~CTL_FLAG_DELAY_DONE; 12529 } else { 12530 if ((lun != NULL) 12531 && (lun->delay_info.datamove_delay > 0)) { 12532 12533 callout_init(&io->io_hdr.delay_callout, /*mpsafe*/ 1); 12534 io->io_hdr.flags |= CTL_FLAG_DELAY_DONE; 12535 callout_reset(&io->io_hdr.delay_callout, 12536 lun->delay_info.datamove_delay * hz, 12537 ctl_datamove_timer_wakeup, io); 12538 if (lun->delay_info.datamove_type == 12539 CTL_DELAY_TYPE_ONESHOT) 12540 lun->delay_info.datamove_delay = 0; 12541 return; 12542 } 12543 } 12544#endif 12545 12546 /* 12547 * This command has been aborted. Set the port status, so we fail 12548 * the data move. 12549 */ 12550 if (io->io_hdr.flags & CTL_FLAG_ABORT) { 12551 printf("ctl_datamove: tag 0x%04x on (%u:%u:%u) aborted\n", 12552 io->scsiio.tag_num, io->io_hdr.nexus.initid, 12553 io->io_hdr.nexus.targ_port, 12554 io->io_hdr.nexus.targ_lun); 12555 io->io_hdr.port_status = 31337; 12556 /* 12557 * Note that the backend, in this case, will get the 12558 * callback in its context. In other cases it may get 12559 * called in the frontend's interrupt thread context. 12560 */ 12561 io->scsiio.be_move_done(io); 12562 return; 12563 } 12564 12565 /* Don't confuse frontend with zero length data move. */ 12566 if (io->scsiio.kern_data_len == 0) { 12567 io->scsiio.be_move_done(io); 12568 return; 12569 } 12570 12571 fe_datamove = ctl_io_port(&io->io_hdr)->fe_datamove; 12572 fe_datamove(io); 12573} 12574 12575static void 12576ctl_send_datamove_done(union ctl_io *io, int have_lock) 12577{ 12578 union ctl_ha_msg msg; 12579#ifdef CTL_TIME_IO 12580 struct bintime cur_bt; 12581#endif 12582 12583 memset(&msg, 0, sizeof(msg)); 12584 msg.hdr.msg_type = CTL_MSG_DATAMOVE_DONE; 12585 msg.hdr.original_sc = io; 12586 msg.hdr.serializing_sc = io->io_hdr.serializing_sc; 12587 msg.hdr.nexus = io->io_hdr.nexus; 12588 msg.hdr.status = io->io_hdr.status; 12589 msg.scsi.tag_num = io->scsiio.tag_num; 12590 msg.scsi.tag_type = io->scsiio.tag_type; 12591 msg.scsi.scsi_status = io->scsiio.scsi_status; 12592 memcpy(&msg.scsi.sense_data, &io->scsiio.sense_data, 12593 io->scsiio.sense_len); 12594 msg.scsi.sense_len = io->scsiio.sense_len; 12595 msg.scsi.sense_residual = io->scsiio.sense_residual; 12596 msg.scsi.fetd_status = io->io_hdr.port_status; 12597 msg.scsi.residual = io->scsiio.residual; 12598 io->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 12599 if (io->io_hdr.flags & CTL_FLAG_FAILOVER) { 12600 ctl_failover_io(io, /*have_lock*/ have_lock); 12601 return; 12602 } 12603 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, 12604 sizeof(msg.scsi) - sizeof(msg.scsi.sense_data) + 12605 msg.scsi.sense_len, M_WAITOK); 12606 12607#ifdef CTL_TIME_IO 12608 getbinuptime(&cur_bt); 12609 bintime_sub(&cur_bt, &io->io_hdr.dma_start_bt); 12610 bintime_add(&io->io_hdr.dma_bt, &cur_bt); 12611#endif 12612 io->io_hdr.num_dmas++; 12613} 12614 12615/* 12616 * The DMA to the remote side is done, now we need to tell the other side 12617 * we're done so it can continue with its data movement. 12618 */ 12619static void 12620ctl_datamove_remote_write_cb(struct ctl_ha_dt_req *rq) 12621{ 12622 union ctl_io *io; 12623 int i; 12624 12625 io = rq->context; 12626 12627 if (rq->ret != CTL_HA_STATUS_SUCCESS) { 12628 printf("%s: ISC DMA write failed with error %d", __func__, 12629 rq->ret); 12630 ctl_set_internal_failure(&io->scsiio, 12631 /*sks_valid*/ 1, 12632 /*retry_count*/ rq->ret); 12633 } 12634 12635 ctl_dt_req_free(rq); 12636 12637 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 12638 free(io->io_hdr.local_sglist[i].addr, M_CTL); 12639 free(io->io_hdr.remote_sglist, M_CTL); 12640 io->io_hdr.remote_sglist = NULL; 12641 io->io_hdr.local_sglist = NULL; 12642 12643 /* 12644 * The data is in local and remote memory, so now we need to send 12645 * status (good or back) back to the other side. 12646 */ 12647 ctl_send_datamove_done(io, /*have_lock*/ 0); 12648} 12649 12650/* 12651 * We've moved the data from the host/controller into local memory. Now we 12652 * need to push it over to the remote controller's memory. 12653 */ 12654static int 12655ctl_datamove_remote_dm_write_cb(union ctl_io *io) 12656{ 12657 int retval; 12658 12659 retval = ctl_datamove_remote_xfer(io, CTL_HA_DT_CMD_WRITE, 12660 ctl_datamove_remote_write_cb); 12661 return (retval); 12662} 12663 12664static void 12665ctl_datamove_remote_write(union ctl_io *io) 12666{ 12667 int retval; 12668 void (*fe_datamove)(union ctl_io *io); 12669 12670 /* 12671 * - Get the data from the host/HBA into local memory. 12672 * - DMA memory from the local controller to the remote controller. 12673 * - Send status back to the remote controller. 12674 */ 12675 12676 retval = ctl_datamove_remote_sgl_setup(io); 12677 if (retval != 0) 12678 return; 12679 12680 /* Switch the pointer over so the FETD knows what to do */ 12681 io->scsiio.kern_data_ptr = (uint8_t *)io->io_hdr.local_sglist; 12682 12683 /* 12684 * Use a custom move done callback, since we need to send completion 12685 * back to the other controller, not to the backend on this side. 12686 */ 12687 io->scsiio.be_move_done = ctl_datamove_remote_dm_write_cb; 12688 12689 fe_datamove = ctl_io_port(&io->io_hdr)->fe_datamove; 12690 fe_datamove(io); 12691} 12692 12693static int 12694ctl_datamove_remote_dm_read_cb(union ctl_io *io) 12695{ 12696#if 0 12697 char str[256]; 12698 char path_str[64]; 12699 struct sbuf sb; 12700#endif 12701 int i; 12702 12703 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 12704 free(io->io_hdr.local_sglist[i].addr, M_CTL); 12705 free(io->io_hdr.remote_sglist, M_CTL); 12706 io->io_hdr.remote_sglist = NULL; 12707 io->io_hdr.local_sglist = NULL; 12708 12709#if 0 12710 scsi_path_string(io, path_str, sizeof(path_str)); 12711 sbuf_new(&sb, str, sizeof(str), SBUF_FIXEDLEN); 12712 sbuf_cat(&sb, path_str); 12713 scsi_command_string(&io->scsiio, NULL, &sb); 12714 sbuf_printf(&sb, "\n"); 12715 sbuf_cat(&sb, path_str); 12716 sbuf_printf(&sb, "Tag: 0x%04x, type %d\n", 12717 io->scsiio.tag_num, io->scsiio.tag_type); 12718 sbuf_cat(&sb, path_str); 12719 sbuf_printf(&sb, "%s: flags %#x, status %#x\n", __func__, 12720 io->io_hdr.flags, io->io_hdr.status); 12721 sbuf_finish(&sb); 12722 printk("%s", sbuf_data(&sb)); 12723#endif 12724 12725 12726 /* 12727 * The read is done, now we need to send status (good or bad) back 12728 * to the other side. 12729 */ 12730 ctl_send_datamove_done(io, /*have_lock*/ 0); 12731 12732 return (0); 12733} 12734 12735static void 12736ctl_datamove_remote_read_cb(struct ctl_ha_dt_req *rq) 12737{ 12738 union ctl_io *io; 12739 void (*fe_datamove)(union ctl_io *io); 12740 12741 io = rq->context; 12742 12743 if (rq->ret != CTL_HA_STATUS_SUCCESS) { 12744 printf("%s: ISC DMA read failed with error %d\n", __func__, 12745 rq->ret); 12746 ctl_set_internal_failure(&io->scsiio, 12747 /*sks_valid*/ 1, 12748 /*retry_count*/ rq->ret); 12749 } 12750 12751 ctl_dt_req_free(rq); 12752 12753 /* Switch the pointer over so the FETD knows what to do */ 12754 io->scsiio.kern_data_ptr = (uint8_t *)io->io_hdr.local_sglist; 12755 12756 /* 12757 * Use a custom move done callback, since we need to send completion 12758 * back to the other controller, not to the backend on this side. 12759 */ 12760 io->scsiio.be_move_done = ctl_datamove_remote_dm_read_cb; 12761 12762 /* XXX KDM add checks like the ones in ctl_datamove? */ 12763 12764 fe_datamove = ctl_io_port(&io->io_hdr)->fe_datamove; 12765 fe_datamove(io); 12766} 12767 12768static int 12769ctl_datamove_remote_sgl_setup(union ctl_io *io) 12770{ 12771 struct ctl_sg_entry *local_sglist; 12772 uint32_t len_to_go; 12773 int retval; 12774 int i; 12775 12776 retval = 0; 12777 local_sglist = io->io_hdr.local_sglist; 12778 len_to_go = io->scsiio.kern_data_len; 12779 12780 /* 12781 * The difficult thing here is that the size of the various 12782 * S/G segments may be different than the size from the 12783 * remote controller. That'll make it harder when DMAing 12784 * the data back to the other side. 12785 */ 12786 for (i = 0; len_to_go > 0; i++) { 12787 local_sglist[i].len = MIN(len_to_go, CTL_HA_DATAMOVE_SEGMENT); 12788 local_sglist[i].addr = 12789 malloc(local_sglist[i].len, M_CTL, M_WAITOK); 12790 12791 len_to_go -= local_sglist[i].len; 12792 } 12793 /* 12794 * Reset the number of S/G entries accordingly. The original 12795 * number of S/G entries is available in rem_sg_entries. 12796 */ 12797 io->scsiio.kern_sg_entries = i; 12798 12799#if 0 12800 printf("%s: kern_sg_entries = %d\n", __func__, 12801 io->scsiio.kern_sg_entries); 12802 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 12803 printf("%s: sg[%d] = %p, %lu\n", __func__, i, 12804 local_sglist[i].addr, local_sglist[i].len); 12805#endif 12806 12807 return (retval); 12808} 12809 12810static int 12811ctl_datamove_remote_xfer(union ctl_io *io, unsigned command, 12812 ctl_ha_dt_cb callback) 12813{ 12814 struct ctl_ha_dt_req *rq; 12815 struct ctl_sg_entry *remote_sglist, *local_sglist; 12816 uint32_t local_used, remote_used, total_used; 12817 int i, j, isc_ret; 12818 12819 rq = ctl_dt_req_alloc(); 12820 12821 /* 12822 * If we failed to allocate the request, and if the DMA didn't fail 12823 * anyway, set busy status. This is just a resource allocation 12824 * failure. 12825 */ 12826 if ((rq == NULL) 12827 && ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE && 12828 (io->io_hdr.status & CTL_STATUS_MASK) != CTL_SUCCESS)) 12829 ctl_set_busy(&io->scsiio); 12830 12831 if ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE && 12832 (io->io_hdr.status & CTL_STATUS_MASK) != CTL_SUCCESS) { 12833 12834 if (rq != NULL) 12835 ctl_dt_req_free(rq); 12836 12837 /* 12838 * The data move failed. We need to return status back 12839 * to the other controller. No point in trying to DMA 12840 * data to the remote controller. 12841 */ 12842 12843 ctl_send_datamove_done(io, /*have_lock*/ 0); 12844 12845 return (1); 12846 } 12847 12848 local_sglist = io->io_hdr.local_sglist; 12849 remote_sglist = io->io_hdr.remote_sglist; 12850 local_used = 0; 12851 remote_used = 0; 12852 total_used = 0; 12853 12854 /* 12855 * Pull/push the data over the wire from/to the other controller. 12856 * This takes into account the possibility that the local and 12857 * remote sglists may not be identical in terms of the size of 12858 * the elements and the number of elements. 12859 * 12860 * One fundamental assumption here is that the length allocated for 12861 * both the local and remote sglists is identical. Otherwise, we've 12862 * essentially got a coding error of some sort. 12863 */ 12864 isc_ret = CTL_HA_STATUS_SUCCESS; 12865 for (i = 0, j = 0; total_used < io->scsiio.kern_data_len; ) { 12866 uint32_t cur_len; 12867 uint8_t *tmp_ptr; 12868 12869 rq->command = command; 12870 rq->context = io; 12871 12872 /* 12873 * Both pointers should be aligned. But it is possible 12874 * that the allocation length is not. They should both 12875 * also have enough slack left over at the end, though, 12876 * to round up to the next 8 byte boundary. 12877 */ 12878 cur_len = MIN(local_sglist[i].len - local_used, 12879 remote_sglist[j].len - remote_used); 12880 rq->size = cur_len; 12881 12882 tmp_ptr = (uint8_t *)local_sglist[i].addr; 12883 tmp_ptr += local_used; 12884 12885#if 0 12886 /* Use physical addresses when talking to ISC hardware */ 12887 if ((io->io_hdr.flags & CTL_FLAG_BUS_ADDR) == 0) { 12888 /* XXX KDM use busdma */ 12889 rq->local = vtophys(tmp_ptr); 12890 } else 12891 rq->local = tmp_ptr; 12892#else 12893 KASSERT((io->io_hdr.flags & CTL_FLAG_BUS_ADDR) == 0, 12894 ("HA does not support BUS_ADDR")); 12895 rq->local = tmp_ptr; 12896#endif 12897 12898 tmp_ptr = (uint8_t *)remote_sglist[j].addr; 12899 tmp_ptr += remote_used; 12900 rq->remote = tmp_ptr; 12901 12902 rq->callback = NULL; 12903 12904 local_used += cur_len; 12905 if (local_used >= local_sglist[i].len) { 12906 i++; 12907 local_used = 0; 12908 } 12909 12910 remote_used += cur_len; 12911 if (remote_used >= remote_sglist[j].len) { 12912 j++; 12913 remote_used = 0; 12914 } 12915 total_used += cur_len; 12916 12917 if (total_used >= io->scsiio.kern_data_len) 12918 rq->callback = callback; 12919 12920#if 0 12921 printf("%s: %s: local %p remote %p size %d\n", __func__, 12922 (command == CTL_HA_DT_CMD_WRITE) ? "WRITE" : "READ", 12923 rq->local, rq->remote, rq->size); 12924#endif 12925 12926 isc_ret = ctl_dt_single(rq); 12927 if (isc_ret > CTL_HA_STATUS_SUCCESS) 12928 break; 12929 } 12930 if (isc_ret != CTL_HA_STATUS_WAIT) { 12931 rq->ret = isc_ret; 12932 callback(rq); 12933 } 12934 12935 return (0); 12936} 12937 12938static void 12939ctl_datamove_remote_read(union ctl_io *io) 12940{ 12941 int retval; 12942 int i; 12943 12944 /* 12945 * This will send an error to the other controller in the case of a 12946 * failure. 12947 */ 12948 retval = ctl_datamove_remote_sgl_setup(io); 12949 if (retval != 0) 12950 return; 12951 12952 retval = ctl_datamove_remote_xfer(io, CTL_HA_DT_CMD_READ, 12953 ctl_datamove_remote_read_cb); 12954 if (retval != 0) { 12955 /* 12956 * Make sure we free memory if there was an error.. The 12957 * ctl_datamove_remote_xfer() function will send the 12958 * datamove done message, or call the callback with an 12959 * error if there is a problem. 12960 */ 12961 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 12962 free(io->io_hdr.local_sglist[i].addr, M_CTL); 12963 free(io->io_hdr.remote_sglist, M_CTL); 12964 io->io_hdr.remote_sglist = NULL; 12965 io->io_hdr.local_sglist = NULL; 12966 } 12967} 12968 12969/* 12970 * Process a datamove request from the other controller. This is used for 12971 * XFER mode only, not SER_ONLY mode. For writes, we DMA into local memory 12972 * first. Once that is complete, the data gets DMAed into the remote 12973 * controller's memory. For reads, we DMA from the remote controller's 12974 * memory into our memory first, and then move it out to the FETD. 12975 */ 12976static void 12977ctl_datamove_remote(union ctl_io *io) 12978{ 12979 12980 mtx_assert(&control_softc->ctl_lock, MA_NOTOWNED); 12981 12982 if (io->io_hdr.flags & CTL_FLAG_FAILOVER) { 12983 ctl_failover_io(io, /*have_lock*/ 0); 12984 return; 12985 } 12986 12987 /* 12988 * Note that we look for an aborted I/O here, but don't do some of 12989 * the other checks that ctl_datamove() normally does. 12990 * We don't need to run the datamove delay code, since that should 12991 * have been done if need be on the other controller. 12992 */ 12993 if (io->io_hdr.flags & CTL_FLAG_ABORT) { 12994 printf("%s: tag 0x%04x on (%u:%u:%u) aborted\n", __func__, 12995 io->scsiio.tag_num, io->io_hdr.nexus.initid, 12996 io->io_hdr.nexus.targ_port, 12997 io->io_hdr.nexus.targ_lun); 12998 io->io_hdr.port_status = 31338; 12999 ctl_send_datamove_done(io, /*have_lock*/ 0); 13000 return; 13001 } 13002 13003 if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_OUT) 13004 ctl_datamove_remote_write(io); 13005 else if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_IN) 13006 ctl_datamove_remote_read(io); 13007 else { 13008 io->io_hdr.port_status = 31339; 13009 ctl_send_datamove_done(io, /*have_lock*/ 0); 13010 } 13011} 13012 13013static void 13014ctl_process_done(union ctl_io *io) 13015{ 13016 struct ctl_lun *lun; 13017 struct ctl_softc *softc = control_softc; 13018 void (*fe_done)(union ctl_io *io); 13019 union ctl_ha_msg msg; 13020 uint32_t targ_port = io->io_hdr.nexus.targ_port; 13021 13022 CTL_DEBUG_PRINT(("ctl_process_done\n")); 13023 fe_done = softc->ctl_ports[targ_port]->fe_done; 13024 13025#ifdef CTL_TIME_IO 13026 if ((time_uptime - io->io_hdr.start_time) > ctl_time_io_secs) { 13027 char str[256]; 13028 char path_str[64]; 13029 struct sbuf sb; 13030 13031 ctl_scsi_path_string(io, path_str, sizeof(path_str)); 13032 sbuf_new(&sb, str, sizeof(str), SBUF_FIXEDLEN); 13033 13034 sbuf_cat(&sb, path_str); 13035 switch (io->io_hdr.io_type) { 13036 case CTL_IO_SCSI: 13037 ctl_scsi_command_string(&io->scsiio, NULL, &sb); 13038 sbuf_printf(&sb, "\n"); 13039 sbuf_cat(&sb, path_str); 13040 sbuf_printf(&sb, "Tag: 0x%04x, type %d\n", 13041 io->scsiio.tag_num, io->scsiio.tag_type); 13042 break; 13043 case CTL_IO_TASK: 13044 sbuf_printf(&sb, "Task I/O type: %d, Tag: 0x%04x, " 13045 "Tag Type: %d\n", io->taskio.task_action, 13046 io->taskio.tag_num, io->taskio.tag_type); 13047 break; 13048 default: 13049 printf("Invalid CTL I/O type %d\n", io->io_hdr.io_type); 13050 panic("Invalid CTL I/O type %d\n", io->io_hdr.io_type); 13051 break; 13052 } 13053 sbuf_cat(&sb, path_str); 13054 sbuf_printf(&sb, "ctl_process_done: %jd seconds\n", 13055 (intmax_t)time_uptime - io->io_hdr.start_time); 13056 sbuf_finish(&sb); 13057 printf("%s", sbuf_data(&sb)); 13058 } 13059#endif /* CTL_TIME_IO */ 13060 13061 switch (io->io_hdr.io_type) { 13062 case CTL_IO_SCSI: 13063 break; 13064 case CTL_IO_TASK: 13065 if (ctl_debug & CTL_DEBUG_INFO) 13066 ctl_io_error_print(io, NULL); 13067 fe_done(io); 13068 return; 13069 default: 13070 panic("ctl_process_done: invalid io type %d\n", 13071 io->io_hdr.io_type); 13072 break; /* NOTREACHED */ 13073 } 13074 13075 lun = (struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 13076 if (lun == NULL) { 13077 CTL_DEBUG_PRINT(("NULL LUN for lun %d\n", 13078 io->io_hdr.nexus.targ_mapped_lun)); 13079 goto bailout; 13080 } 13081 13082 mtx_lock(&lun->lun_lock); 13083 13084 /* 13085 * Check to see if we have any errors to inject here. We only 13086 * inject errors for commands that don't already have errors set. 13087 */ 13088 if ((STAILQ_FIRST(&lun->error_list) != NULL) && 13089 ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS) && 13090 ((io->io_hdr.flags & CTL_FLAG_STATUS_SENT) == 0)) 13091 ctl_inject_error(lun, io); 13092 13093 /* 13094 * XXX KDM how do we treat commands that aren't completed 13095 * successfully? 13096 * 13097 * XXX KDM should we also track I/O latency? 13098 */ 13099 if ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS && 13100 io->io_hdr.io_type == CTL_IO_SCSI) { 13101#ifdef CTL_TIME_IO 13102 struct bintime cur_bt; 13103#endif 13104 int type; 13105 13106 if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == 13107 CTL_FLAG_DATA_IN) 13108 type = CTL_STATS_READ; 13109 else if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == 13110 CTL_FLAG_DATA_OUT) 13111 type = CTL_STATS_WRITE; 13112 else 13113 type = CTL_STATS_NO_IO; 13114 13115 lun->stats.ports[targ_port].bytes[type] += 13116 io->scsiio.kern_total_len; 13117 lun->stats.ports[targ_port].operations[type]++; 13118#ifdef CTL_TIME_IO 13119 bintime_add(&lun->stats.ports[targ_port].dma_time[type], 13120 &io->io_hdr.dma_bt); 13121 getbinuptime(&cur_bt); 13122 bintime_sub(&cur_bt, &io->io_hdr.start_bt); 13123 bintime_add(&lun->stats.ports[targ_port].time[type], &cur_bt); 13124#endif 13125 lun->stats.ports[targ_port].num_dmas[type] += 13126 io->io_hdr.num_dmas; 13127 } 13128 13129 /* 13130 * Remove this from the OOA queue. 13131 */ 13132 TAILQ_REMOVE(&lun->ooa_queue, &io->io_hdr, ooa_links); 13133#ifdef CTL_TIME_IO 13134 if (TAILQ_EMPTY(&lun->ooa_queue)) 13135 lun->last_busy = getsbinuptime(); 13136#endif 13137 13138 /* 13139 * Run through the blocked queue on this LUN and see if anything 13140 * has become unblocked, now that this transaction is done. 13141 */ 13142 ctl_check_blocked(lun); 13143 13144 /* 13145 * If the LUN has been invalidated, free it if there is nothing 13146 * left on its OOA queue. 13147 */ 13148 if ((lun->flags & CTL_LUN_INVALID) 13149 && TAILQ_EMPTY(&lun->ooa_queue)) { 13150 mtx_unlock(&lun->lun_lock); 13151 mtx_lock(&softc->ctl_lock); 13152 ctl_free_lun(lun); 13153 mtx_unlock(&softc->ctl_lock); 13154 } else 13155 mtx_unlock(&lun->lun_lock); 13156 13157bailout: 13158 13159 /* 13160 * If this command has been aborted, make sure we set the status 13161 * properly. The FETD is responsible for freeing the I/O and doing 13162 * whatever it needs to do to clean up its state. 13163 */ 13164 if (io->io_hdr.flags & CTL_FLAG_ABORT) 13165 ctl_set_task_aborted(&io->scsiio); 13166 13167 /* 13168 * If enabled, print command error status. 13169 */ 13170 if ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_SUCCESS && 13171 (ctl_debug & CTL_DEBUG_INFO) != 0) 13172 ctl_io_error_print(io, NULL); 13173 13174 /* 13175 * Tell the FETD or the other shelf controller we're done with this 13176 * command. Note that only SCSI commands get to this point. Task 13177 * management commands are completed above. 13178 */ 13179 if ((softc->ha_mode != CTL_HA_MODE_XFER) && 13180 (io->io_hdr.flags & CTL_FLAG_SENT_2OTHER_SC)) { 13181 memset(&msg, 0, sizeof(msg)); 13182 msg.hdr.msg_type = CTL_MSG_FINISH_IO; 13183 msg.hdr.serializing_sc = io->io_hdr.serializing_sc; 13184 msg.hdr.nexus = io->io_hdr.nexus; 13185 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, 13186 sizeof(msg.scsi) - sizeof(msg.scsi.sense_data), 13187 M_WAITOK); 13188 } 13189 13190 fe_done(io); 13191} 13192 13193#ifdef CTL_WITH_CA 13194/* 13195 * Front end should call this if it doesn't do autosense. When the request 13196 * sense comes back in from the initiator, we'll dequeue this and send it. 13197 */ 13198int 13199ctl_queue_sense(union ctl_io *io) 13200{ 13201 struct ctl_lun *lun; 13202 struct ctl_port *port; 13203 struct ctl_softc *softc; 13204 uint32_t initidx, targ_lun; 13205 13206 softc = control_softc; 13207 13208 CTL_DEBUG_PRINT(("ctl_queue_sense\n")); 13209 13210 /* 13211 * LUN lookup will likely move to the ctl_work_thread() once we 13212 * have our new queueing infrastructure (that doesn't put things on 13213 * a per-LUN queue initially). That is so that we can handle 13214 * things like an INQUIRY to a LUN that we don't have enabled. We 13215 * can't deal with that right now. 13216 */ 13217 mtx_lock(&softc->ctl_lock); 13218 13219 /* 13220 * If we don't have a LUN for this, just toss the sense 13221 * information. 13222 */ 13223 port = ctl_io_port(&ctsio->io_hdr); 13224 targ_lun = ctl_lun_map_from_port(port, io->io_hdr.nexus.targ_lun); 13225 if ((targ_lun < CTL_MAX_LUNS) 13226 && (softc->ctl_luns[targ_lun] != NULL)) 13227 lun = softc->ctl_luns[targ_lun]; 13228 else 13229 goto bailout; 13230 13231 initidx = ctl_get_initindex(&io->io_hdr.nexus); 13232 13233 mtx_lock(&lun->lun_lock); 13234 /* 13235 * Already have CA set for this LUN...toss the sense information. 13236 */ 13237 if (ctl_is_set(lun->have_ca, initidx)) { 13238 mtx_unlock(&lun->lun_lock); 13239 goto bailout; 13240 } 13241 13242 memcpy(&lun->pending_sense[initidx], &io->scsiio.sense_data, 13243 MIN(sizeof(lun->pending_sense[initidx]), 13244 sizeof(io->scsiio.sense_data))); 13245 ctl_set_mask(lun->have_ca, initidx); 13246 mtx_unlock(&lun->lun_lock); 13247 13248bailout: 13249 mtx_unlock(&softc->ctl_lock); 13250 13251 ctl_free_io(io); 13252 13253 return (CTL_RETVAL_COMPLETE); 13254} 13255#endif 13256 13257/* 13258 * Primary command inlet from frontend ports. All SCSI and task I/O 13259 * requests must go through this function. 13260 */ 13261int 13262ctl_queue(union ctl_io *io) 13263{ 13264 struct ctl_port *port; 13265 13266 CTL_DEBUG_PRINT(("ctl_queue cdb[0]=%02X\n", io->scsiio.cdb[0])); 13267 13268#ifdef CTL_TIME_IO 13269 io->io_hdr.start_time = time_uptime; 13270 getbinuptime(&io->io_hdr.start_bt); 13271#endif /* CTL_TIME_IO */ 13272 13273 /* Map FE-specific LUN ID into global one. */ 13274 port = ctl_io_port(&io->io_hdr); 13275 io->io_hdr.nexus.targ_mapped_lun = 13276 ctl_lun_map_from_port(port, io->io_hdr.nexus.targ_lun); 13277 13278 switch (io->io_hdr.io_type) { 13279 case CTL_IO_SCSI: 13280 case CTL_IO_TASK: 13281 if (ctl_debug & CTL_DEBUG_CDB) 13282 ctl_io_print(io); 13283 ctl_enqueue_incoming(io); 13284 break; 13285 default: 13286 printf("ctl_queue: unknown I/O type %d\n", io->io_hdr.io_type); 13287 return (EINVAL); 13288 } 13289 13290 return (CTL_RETVAL_COMPLETE); 13291} 13292 13293#ifdef CTL_IO_DELAY 13294static void 13295ctl_done_timer_wakeup(void *arg) 13296{ 13297 union ctl_io *io; 13298 13299 io = (union ctl_io *)arg; 13300 ctl_done(io); 13301} 13302#endif /* CTL_IO_DELAY */ 13303 13304void 13305ctl_serseq_done(union ctl_io *io) 13306{ 13307 struct ctl_lun *lun; 13308 13309 lun = (struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 13310 if (lun->be_lun == NULL || 13311 lun->be_lun->serseq == CTL_LUN_SERSEQ_OFF) 13312 return; 13313 mtx_lock(&lun->lun_lock); 13314 io->io_hdr.flags |= CTL_FLAG_SERSEQ_DONE; 13315 ctl_check_blocked(lun); 13316 mtx_unlock(&lun->lun_lock); 13317} 13318 13319void 13320ctl_done(union ctl_io *io) 13321{ 13322 13323 /* 13324 * Enable this to catch duplicate completion issues. 13325 */ 13326#if 0 13327 if (io->io_hdr.flags & CTL_FLAG_ALREADY_DONE) { 13328 printf("%s: type %d msg %d cdb %x iptl: " 13329 "%u:%u:%u tag 0x%04x " 13330 "flag %#x status %x\n", 13331 __func__, 13332 io->io_hdr.io_type, 13333 io->io_hdr.msg_type, 13334 io->scsiio.cdb[0], 13335 io->io_hdr.nexus.initid, 13336 io->io_hdr.nexus.targ_port, 13337 io->io_hdr.nexus.targ_lun, 13338 (io->io_hdr.io_type == 13339 CTL_IO_TASK) ? 13340 io->taskio.tag_num : 13341 io->scsiio.tag_num, 13342 io->io_hdr.flags, 13343 io->io_hdr.status); 13344 } else 13345 io->io_hdr.flags |= CTL_FLAG_ALREADY_DONE; 13346#endif 13347 13348 /* 13349 * This is an internal copy of an I/O, and should not go through 13350 * the normal done processing logic. 13351 */ 13352 if (io->io_hdr.flags & CTL_FLAG_INT_COPY) 13353 return; 13354 13355#ifdef CTL_IO_DELAY 13356 if (io->io_hdr.flags & CTL_FLAG_DELAY_DONE) { 13357 struct ctl_lun *lun; 13358 13359 lun =(struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 13360 13361 io->io_hdr.flags &= ~CTL_FLAG_DELAY_DONE; 13362 } else { 13363 struct ctl_lun *lun; 13364 13365 lun =(struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 13366 13367 if ((lun != NULL) 13368 && (lun->delay_info.done_delay > 0)) { 13369 13370 callout_init(&io->io_hdr.delay_callout, /*mpsafe*/ 1); 13371 io->io_hdr.flags |= CTL_FLAG_DELAY_DONE; 13372 callout_reset(&io->io_hdr.delay_callout, 13373 lun->delay_info.done_delay * hz, 13374 ctl_done_timer_wakeup, io); 13375 if (lun->delay_info.done_type == CTL_DELAY_TYPE_ONESHOT) 13376 lun->delay_info.done_delay = 0; 13377 return; 13378 } 13379 } 13380#endif /* CTL_IO_DELAY */ 13381 13382 ctl_enqueue_done(io); 13383} 13384 13385static void 13386ctl_work_thread(void *arg) 13387{ 13388 struct ctl_thread *thr = (struct ctl_thread *)arg; 13389 struct ctl_softc *softc = thr->ctl_softc; 13390 union ctl_io *io; 13391 int retval; 13392 13393 CTL_DEBUG_PRINT(("ctl_work_thread starting\n")); 13394 13395 for (;;) { 13396 /* 13397 * We handle the queues in this order: 13398 * - ISC 13399 * - done queue (to free up resources, unblock other commands) 13400 * - RtR queue 13401 * - incoming queue 13402 * 13403 * If those queues are empty, we break out of the loop and 13404 * go to sleep. 13405 */ 13406 mtx_lock(&thr->queue_lock); 13407 io = (union ctl_io *)STAILQ_FIRST(&thr->isc_queue); 13408 if (io != NULL) { 13409 STAILQ_REMOVE_HEAD(&thr->isc_queue, links); 13410 mtx_unlock(&thr->queue_lock); 13411 ctl_handle_isc(io); 13412 continue; 13413 } 13414 io = (union ctl_io *)STAILQ_FIRST(&thr->done_queue); 13415 if (io != NULL) { 13416 STAILQ_REMOVE_HEAD(&thr->done_queue, links); 13417 /* clear any blocked commands, call fe_done */ 13418 mtx_unlock(&thr->queue_lock); 13419 ctl_process_done(io); 13420 continue; 13421 } 13422 io = (union ctl_io *)STAILQ_FIRST(&thr->incoming_queue); 13423 if (io != NULL) { 13424 STAILQ_REMOVE_HEAD(&thr->incoming_queue, links); 13425 mtx_unlock(&thr->queue_lock); 13426 if (io->io_hdr.io_type == CTL_IO_TASK) 13427 ctl_run_task(io); 13428 else 13429 ctl_scsiio_precheck(softc, &io->scsiio); 13430 continue; 13431 } 13432 io = (union ctl_io *)STAILQ_FIRST(&thr->rtr_queue); 13433 if (io != NULL) { 13434 STAILQ_REMOVE_HEAD(&thr->rtr_queue, links); 13435 mtx_unlock(&thr->queue_lock); 13436 retval = ctl_scsiio(&io->scsiio); 13437 if (retval != CTL_RETVAL_COMPLETE) 13438 CTL_DEBUG_PRINT(("ctl_scsiio failed\n")); 13439 continue; 13440 } 13441 13442 /* Sleep until we have something to do. */ 13443 mtx_sleep(thr, &thr->queue_lock, PDROP | PRIBIO, "-", 0); 13444 } 13445} 13446 13447static void 13448ctl_lun_thread(void *arg) 13449{ 13450 struct ctl_softc *softc = (struct ctl_softc *)arg; 13451 struct ctl_be_lun *be_lun; 13452 13453 CTL_DEBUG_PRINT(("ctl_lun_thread starting\n")); 13454 13455 for (;;) { 13456 mtx_lock(&softc->ctl_lock); 13457 be_lun = STAILQ_FIRST(&softc->pending_lun_queue); 13458 if (be_lun != NULL) { 13459 STAILQ_REMOVE_HEAD(&softc->pending_lun_queue, links); 13460 mtx_unlock(&softc->ctl_lock); 13461 ctl_create_lun(be_lun); 13462 continue; 13463 } 13464 13465 /* Sleep until we have something to do. */ 13466 mtx_sleep(&softc->pending_lun_queue, &softc->ctl_lock, 13467 PDROP | PRIBIO, "-", 0); 13468 } 13469} 13470 13471static void 13472ctl_thresh_thread(void *arg) 13473{ 13474 struct ctl_softc *softc = (struct ctl_softc *)arg; 13475 struct ctl_lun *lun; 13476 struct scsi_da_rw_recovery_page *rwpage; 13477 struct ctl_logical_block_provisioning_page *page; 13478 const char *attr; 13479 union ctl_ha_msg msg; 13480 uint64_t thres, val; 13481 int i, e, set; 13482 13483 CTL_DEBUG_PRINT(("ctl_thresh_thread starting\n")); 13484 13485 for (;;) { 13486 mtx_lock(&softc->ctl_lock); 13487 STAILQ_FOREACH(lun, &softc->lun_list, links) { 13488 if ((lun->flags & CTL_LUN_DISABLED) || 13489 (lun->flags & CTL_LUN_OFFLINE) || 13490 lun->backend->lun_attr == NULL) 13491 continue; 13492 if ((lun->flags & CTL_LUN_PRIMARY_SC) == 0 && 13493 softc->ha_mode == CTL_HA_MODE_XFER) 13494 continue; 13495 rwpage = &lun->mode_pages.rw_er_page[CTL_PAGE_CURRENT]; 13496 if ((rwpage->byte8 & SMS_RWER_LBPERE) == 0) 13497 continue; 13498 e = 0; 13499 page = &lun->mode_pages.lbp_page[CTL_PAGE_CURRENT]; 13500 for (i = 0; i < CTL_NUM_LBP_THRESH; i++) { 13501 if ((page->descr[i].flags & SLBPPD_ENABLED) == 0) 13502 continue; 13503 thres = scsi_4btoul(page->descr[i].count); 13504 thres <<= CTL_LBP_EXPONENT; 13505 switch (page->descr[i].resource) { 13506 case 0x01: 13507 attr = "blocksavail"; 13508 break; 13509 case 0x02: 13510 attr = "blocksused"; 13511 break; 13512 case 0xf1: 13513 attr = "poolblocksavail"; 13514 break; 13515 case 0xf2: 13516 attr = "poolblocksused"; 13517 break; 13518 default: 13519 continue; 13520 } 13521 mtx_unlock(&softc->ctl_lock); // XXX 13522 val = lun->backend->lun_attr( 13523 lun->be_lun->be_lun, attr); 13524 mtx_lock(&softc->ctl_lock); 13525 if (val == UINT64_MAX) 13526 continue; 13527 if ((page->descr[i].flags & SLBPPD_ARMING_MASK) 13528 == SLBPPD_ARMING_INC) 13529 e = (val >= thres); 13530 else 13531 e = (val <= thres); 13532 if (e) 13533 break; 13534 } 13535 mtx_lock(&lun->lun_lock); 13536 if (e) { 13537 scsi_u64to8b((uint8_t *)&page->descr[i] - 13538 (uint8_t *)page, lun->ua_tpt_info); 13539 if (lun->lasttpt == 0 || 13540 time_uptime - lun->lasttpt >= CTL_LBP_UA_PERIOD) { 13541 lun->lasttpt = time_uptime; 13542 ctl_est_ua_all(lun, -1, CTL_UA_THIN_PROV_THRES); 13543 set = 1; 13544 } else 13545 set = 0; 13546 } else { 13547 lun->lasttpt = 0; 13548 ctl_clr_ua_all(lun, -1, CTL_UA_THIN_PROV_THRES); 13549 set = -1; 13550 } 13551 mtx_unlock(&lun->lun_lock); 13552 if (set != 0 && 13553 lun->ctl_softc->ha_mode == CTL_HA_MODE_XFER) { 13554 /* Send msg to other side. */ 13555 bzero(&msg.ua, sizeof(msg.ua)); 13556 msg.hdr.msg_type = CTL_MSG_UA; 13557 msg.hdr.nexus.initid = -1; 13558 msg.hdr.nexus.targ_port = -1; 13559 msg.hdr.nexus.targ_lun = lun->lun; 13560 msg.hdr.nexus.targ_mapped_lun = lun->lun; 13561 msg.ua.ua_all = 1; 13562 msg.ua.ua_set = (set > 0); 13563 msg.ua.ua_type = CTL_UA_THIN_PROV_THRES; 13564 memcpy(msg.ua.ua_info, lun->ua_tpt_info, 8); 13565 mtx_unlock(&softc->ctl_lock); // XXX 13566 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, 13567 sizeof(msg.ua), M_WAITOK); 13568 mtx_lock(&softc->ctl_lock); 13569 } 13570 } 13571 mtx_unlock(&softc->ctl_lock); 13572 pause("-", CTL_LBP_PERIOD * hz); 13573 } 13574} 13575 13576static void 13577ctl_enqueue_incoming(union ctl_io *io) 13578{ 13579 struct ctl_softc *softc = control_softc; 13580 struct ctl_thread *thr; 13581 u_int idx; 13582 13583 idx = (io->io_hdr.nexus.targ_port * 127 + 13584 io->io_hdr.nexus.initid) % worker_threads; 13585 thr = &softc->threads[idx]; 13586 mtx_lock(&thr->queue_lock); 13587 STAILQ_INSERT_TAIL(&thr->incoming_queue, &io->io_hdr, links); 13588 mtx_unlock(&thr->queue_lock); 13589 wakeup(thr); 13590} 13591 13592static void 13593ctl_enqueue_rtr(union ctl_io *io) 13594{ 13595 struct ctl_softc *softc = control_softc; 13596 struct ctl_thread *thr; 13597 13598 thr = &softc->threads[io->io_hdr.nexus.targ_mapped_lun % worker_threads]; 13599 mtx_lock(&thr->queue_lock); 13600 STAILQ_INSERT_TAIL(&thr->rtr_queue, &io->io_hdr, links); 13601 mtx_unlock(&thr->queue_lock); 13602 wakeup(thr); 13603} 13604 13605static void 13606ctl_enqueue_done(union ctl_io *io) 13607{ 13608 struct ctl_softc *softc = control_softc; 13609 struct ctl_thread *thr; 13610 13611 thr = &softc->threads[io->io_hdr.nexus.targ_mapped_lun % worker_threads]; 13612 mtx_lock(&thr->queue_lock); 13613 STAILQ_INSERT_TAIL(&thr->done_queue, &io->io_hdr, links); 13614 mtx_unlock(&thr->queue_lock); 13615 wakeup(thr); 13616} 13617 13618static void 13619ctl_enqueue_isc(union ctl_io *io) 13620{ 13621 struct ctl_softc *softc = control_softc; 13622 struct ctl_thread *thr; 13623 13624 thr = &softc->threads[io->io_hdr.nexus.targ_mapped_lun % worker_threads]; 13625 mtx_lock(&thr->queue_lock); 13626 STAILQ_INSERT_TAIL(&thr->isc_queue, &io->io_hdr, links); 13627 mtx_unlock(&thr->queue_lock); 13628 wakeup(thr); 13629} 13630 13631/* 13632 * vim: ts=8 13633 */ 13634