ctl.c revision 311399
1/*- 2 * Copyright (c) 2003-2009 Silicon Graphics International Corp. 3 * Copyright (c) 2012 The FreeBSD Foundation 4 * Copyright (c) 2015 Alexander Motin <mav@FreeBSD.org> 5 * All rights reserved. 6 * 7 * Portions of this software were developed by Edward Tomasz Napierala 8 * under sponsorship from the FreeBSD Foundation. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions, and the following disclaimer, 15 * without modification. 16 * 2. Redistributions in binary form must reproduce at minimum a disclaimer 17 * substantially similar to the "NO WARRANTY" disclaimer below 18 * ("Disclaimer") and any redistribution must be conditioned upon 19 * including a substantially similar Disclaimer requirement for further 20 * binary redistribution. 21 * 22 * NO WARRANTY 23 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 24 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 25 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR 26 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 27 * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 31 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 32 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 33 * POSSIBILITY OF SUCH DAMAGES. 34 * 35 * $Id$ 36 */ 37/* 38 * CAM Target Layer, a SCSI device emulation subsystem. 39 * 40 * Author: Ken Merry <ken@FreeBSD.org> 41 */ 42 43#define _CTL_C 44 45#include <sys/cdefs.h> 46__FBSDID("$FreeBSD: stable/11/sys/cam/ctl/ctl.c 311399 2017-01-05 11:03:58Z mav $"); 47 48#include <sys/param.h> 49#include <sys/systm.h> 50#include <sys/ctype.h> 51#include <sys/kernel.h> 52#include <sys/types.h> 53#include <sys/kthread.h> 54#include <sys/bio.h> 55#include <sys/fcntl.h> 56#include <sys/lock.h> 57#include <sys/module.h> 58#include <sys/mutex.h> 59#include <sys/condvar.h> 60#include <sys/malloc.h> 61#include <sys/conf.h> 62#include <sys/ioccom.h> 63#include <sys/queue.h> 64#include <sys/sbuf.h> 65#include <sys/smp.h> 66#include <sys/endian.h> 67#include <sys/sysctl.h> 68#include <vm/uma.h> 69 70#include <cam/cam.h> 71#include <cam/scsi/scsi_all.h> 72#include <cam/scsi/scsi_cd.h> 73#include <cam/scsi/scsi_da.h> 74#include <cam/ctl/ctl_io.h> 75#include <cam/ctl/ctl.h> 76#include <cam/ctl/ctl_frontend.h> 77#include <cam/ctl/ctl_util.h> 78#include <cam/ctl/ctl_backend.h> 79#include <cam/ctl/ctl_ioctl.h> 80#include <cam/ctl/ctl_ha.h> 81#include <cam/ctl/ctl_private.h> 82#include <cam/ctl/ctl_debug.h> 83#include <cam/ctl/ctl_scsi_all.h> 84#include <cam/ctl/ctl_error.h> 85 86struct ctl_softc *control_softc = NULL; 87 88/* 89 * Template mode pages. 90 */ 91 92/* 93 * Note that these are default values only. The actual values will be 94 * filled in when the user does a mode sense. 95 */ 96const static struct scsi_da_rw_recovery_page rw_er_page_default = { 97 /*page_code*/SMS_RW_ERROR_RECOVERY_PAGE, 98 /*page_length*/sizeof(struct scsi_da_rw_recovery_page) - 2, 99 /*byte3*/SMS_RWER_AWRE|SMS_RWER_ARRE, 100 /*read_retry_count*/0, 101 /*correction_span*/0, 102 /*head_offset_count*/0, 103 /*data_strobe_offset_cnt*/0, 104 /*byte8*/SMS_RWER_LBPERE, 105 /*write_retry_count*/0, 106 /*reserved2*/0, 107 /*recovery_time_limit*/{0, 0}, 108}; 109 110const static struct scsi_da_rw_recovery_page rw_er_page_changeable = { 111 /*page_code*/SMS_RW_ERROR_RECOVERY_PAGE, 112 /*page_length*/sizeof(struct scsi_da_rw_recovery_page) - 2, 113 /*byte3*/SMS_RWER_PER, 114 /*read_retry_count*/0, 115 /*correction_span*/0, 116 /*head_offset_count*/0, 117 /*data_strobe_offset_cnt*/0, 118 /*byte8*/SMS_RWER_LBPERE, 119 /*write_retry_count*/0, 120 /*reserved2*/0, 121 /*recovery_time_limit*/{0, 0}, 122}; 123 124const static struct scsi_format_page format_page_default = { 125 /*page_code*/SMS_FORMAT_DEVICE_PAGE, 126 /*page_length*/sizeof(struct scsi_format_page) - 2, 127 /*tracks_per_zone*/ {0, 0}, 128 /*alt_sectors_per_zone*/ {0, 0}, 129 /*alt_tracks_per_zone*/ {0, 0}, 130 /*alt_tracks_per_lun*/ {0, 0}, 131 /*sectors_per_track*/ {(CTL_DEFAULT_SECTORS_PER_TRACK >> 8) & 0xff, 132 CTL_DEFAULT_SECTORS_PER_TRACK & 0xff}, 133 /*bytes_per_sector*/ {0, 0}, 134 /*interleave*/ {0, 0}, 135 /*track_skew*/ {0, 0}, 136 /*cylinder_skew*/ {0, 0}, 137 /*flags*/ SFP_HSEC, 138 /*reserved*/ {0, 0, 0} 139}; 140 141const static struct scsi_format_page format_page_changeable = { 142 /*page_code*/SMS_FORMAT_DEVICE_PAGE, 143 /*page_length*/sizeof(struct scsi_format_page) - 2, 144 /*tracks_per_zone*/ {0, 0}, 145 /*alt_sectors_per_zone*/ {0, 0}, 146 /*alt_tracks_per_zone*/ {0, 0}, 147 /*alt_tracks_per_lun*/ {0, 0}, 148 /*sectors_per_track*/ {0, 0}, 149 /*bytes_per_sector*/ {0, 0}, 150 /*interleave*/ {0, 0}, 151 /*track_skew*/ {0, 0}, 152 /*cylinder_skew*/ {0, 0}, 153 /*flags*/ 0, 154 /*reserved*/ {0, 0, 0} 155}; 156 157const static struct scsi_rigid_disk_page rigid_disk_page_default = { 158 /*page_code*/SMS_RIGID_DISK_PAGE, 159 /*page_length*/sizeof(struct scsi_rigid_disk_page) - 2, 160 /*cylinders*/ {0, 0, 0}, 161 /*heads*/ CTL_DEFAULT_HEADS, 162 /*start_write_precomp*/ {0, 0, 0}, 163 /*start_reduced_current*/ {0, 0, 0}, 164 /*step_rate*/ {0, 0}, 165 /*landing_zone_cylinder*/ {0, 0, 0}, 166 /*rpl*/ SRDP_RPL_DISABLED, 167 /*rotational_offset*/ 0, 168 /*reserved1*/ 0, 169 /*rotation_rate*/ {(CTL_DEFAULT_ROTATION_RATE >> 8) & 0xff, 170 CTL_DEFAULT_ROTATION_RATE & 0xff}, 171 /*reserved2*/ {0, 0} 172}; 173 174const static struct scsi_rigid_disk_page rigid_disk_page_changeable = { 175 /*page_code*/SMS_RIGID_DISK_PAGE, 176 /*page_length*/sizeof(struct scsi_rigid_disk_page) - 2, 177 /*cylinders*/ {0, 0, 0}, 178 /*heads*/ 0, 179 /*start_write_precomp*/ {0, 0, 0}, 180 /*start_reduced_current*/ {0, 0, 0}, 181 /*step_rate*/ {0, 0}, 182 /*landing_zone_cylinder*/ {0, 0, 0}, 183 /*rpl*/ 0, 184 /*rotational_offset*/ 0, 185 /*reserved1*/ 0, 186 /*rotation_rate*/ {0, 0}, 187 /*reserved2*/ {0, 0} 188}; 189 190const static struct scsi_da_verify_recovery_page verify_er_page_default = { 191 /*page_code*/SMS_VERIFY_ERROR_RECOVERY_PAGE, 192 /*page_length*/sizeof(struct scsi_da_verify_recovery_page) - 2, 193 /*byte3*/0, 194 /*read_retry_count*/0, 195 /*reserved*/{ 0, 0, 0, 0, 0, 0 }, 196 /*recovery_time_limit*/{0, 0}, 197}; 198 199const static struct scsi_da_verify_recovery_page verify_er_page_changeable = { 200 /*page_code*/SMS_VERIFY_ERROR_RECOVERY_PAGE, 201 /*page_length*/sizeof(struct scsi_da_verify_recovery_page) - 2, 202 /*byte3*/SMS_VER_PER, 203 /*read_retry_count*/0, 204 /*reserved*/{ 0, 0, 0, 0, 0, 0 }, 205 /*recovery_time_limit*/{0, 0}, 206}; 207 208const static struct scsi_caching_page caching_page_default = { 209 /*page_code*/SMS_CACHING_PAGE, 210 /*page_length*/sizeof(struct scsi_caching_page) - 2, 211 /*flags1*/ SCP_DISC | SCP_WCE, 212 /*ret_priority*/ 0, 213 /*disable_pf_transfer_len*/ {0xff, 0xff}, 214 /*min_prefetch*/ {0, 0}, 215 /*max_prefetch*/ {0xff, 0xff}, 216 /*max_pf_ceiling*/ {0xff, 0xff}, 217 /*flags2*/ 0, 218 /*cache_segments*/ 0, 219 /*cache_seg_size*/ {0, 0}, 220 /*reserved*/ 0, 221 /*non_cache_seg_size*/ {0, 0, 0} 222}; 223 224const static struct scsi_caching_page caching_page_changeable = { 225 /*page_code*/SMS_CACHING_PAGE, 226 /*page_length*/sizeof(struct scsi_caching_page) - 2, 227 /*flags1*/ SCP_WCE | SCP_RCD, 228 /*ret_priority*/ 0, 229 /*disable_pf_transfer_len*/ {0, 0}, 230 /*min_prefetch*/ {0, 0}, 231 /*max_prefetch*/ {0, 0}, 232 /*max_pf_ceiling*/ {0, 0}, 233 /*flags2*/ 0, 234 /*cache_segments*/ 0, 235 /*cache_seg_size*/ {0, 0}, 236 /*reserved*/ 0, 237 /*non_cache_seg_size*/ {0, 0, 0} 238}; 239 240const static struct scsi_control_page control_page_default = { 241 /*page_code*/SMS_CONTROL_MODE_PAGE, 242 /*page_length*/sizeof(struct scsi_control_page) - 2, 243 /*rlec*/0, 244 /*queue_flags*/SCP_QUEUE_ALG_RESTRICTED, 245 /*eca_and_aen*/0, 246 /*flags4*/SCP_TAS, 247 /*aen_holdoff_period*/{0, 0}, 248 /*busy_timeout_period*/{0, 0}, 249 /*extended_selftest_completion_time*/{0, 0} 250}; 251 252const static struct scsi_control_page control_page_changeable = { 253 /*page_code*/SMS_CONTROL_MODE_PAGE, 254 /*page_length*/sizeof(struct scsi_control_page) - 2, 255 /*rlec*/SCP_DSENSE, 256 /*queue_flags*/SCP_QUEUE_ALG_MASK, 257 /*eca_and_aen*/SCP_SWP, 258 /*flags4*/0, 259 /*aen_holdoff_period*/{0, 0}, 260 /*busy_timeout_period*/{0, 0}, 261 /*extended_selftest_completion_time*/{0, 0} 262}; 263 264#define CTL_CEM_LEN (sizeof(struct scsi_control_ext_page) - 4) 265 266const static struct scsi_control_ext_page control_ext_page_default = { 267 /*page_code*/SMS_CONTROL_MODE_PAGE | SMPH_SPF, 268 /*subpage_code*/0x01, 269 /*page_length*/{CTL_CEM_LEN >> 8, CTL_CEM_LEN}, 270 /*flags*/0, 271 /*prio*/0, 272 /*max_sense*/0 273}; 274 275const static struct scsi_control_ext_page control_ext_page_changeable = { 276 /*page_code*/SMS_CONTROL_MODE_PAGE | SMPH_SPF, 277 /*subpage_code*/0x01, 278 /*page_length*/{CTL_CEM_LEN >> 8, CTL_CEM_LEN}, 279 /*flags*/0, 280 /*prio*/0, 281 /*max_sense*/0 282}; 283 284const static struct scsi_info_exceptions_page ie_page_default = { 285 /*page_code*/SMS_INFO_EXCEPTIONS_PAGE, 286 /*page_length*/sizeof(struct scsi_info_exceptions_page) - 2, 287 /*info_flags*/SIEP_FLAGS_EWASC, 288 /*mrie*/SIEP_MRIE_NO, 289 /*interval_timer*/{0, 0, 0, 0}, 290 /*report_count*/{0, 0, 0, 1} 291}; 292 293const static struct scsi_info_exceptions_page ie_page_changeable = { 294 /*page_code*/SMS_INFO_EXCEPTIONS_PAGE, 295 /*page_length*/sizeof(struct scsi_info_exceptions_page) - 2, 296 /*info_flags*/SIEP_FLAGS_EWASC | SIEP_FLAGS_DEXCPT | SIEP_FLAGS_TEST | 297 SIEP_FLAGS_LOGERR, 298 /*mrie*/0x0f, 299 /*interval_timer*/{0xff, 0xff, 0xff, 0xff}, 300 /*report_count*/{0xff, 0xff, 0xff, 0xff} 301}; 302 303#define CTL_LBPM_LEN (sizeof(struct ctl_logical_block_provisioning_page) - 4) 304 305const static struct ctl_logical_block_provisioning_page lbp_page_default = {{ 306 /*page_code*/SMS_INFO_EXCEPTIONS_PAGE | SMPH_SPF, 307 /*subpage_code*/0x02, 308 /*page_length*/{CTL_LBPM_LEN >> 8, CTL_LBPM_LEN}, 309 /*flags*/0, 310 /*reserved*/{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}, 311 /*descr*/{}}, 312 {{/*flags*/0, 313 /*resource*/0x01, 314 /*reserved*/{0, 0}, 315 /*count*/{0, 0, 0, 0}}, 316 {/*flags*/0, 317 /*resource*/0x02, 318 /*reserved*/{0, 0}, 319 /*count*/{0, 0, 0, 0}}, 320 {/*flags*/0, 321 /*resource*/0xf1, 322 /*reserved*/{0, 0}, 323 /*count*/{0, 0, 0, 0}}, 324 {/*flags*/0, 325 /*resource*/0xf2, 326 /*reserved*/{0, 0}, 327 /*count*/{0, 0, 0, 0}} 328 } 329}; 330 331const static struct ctl_logical_block_provisioning_page lbp_page_changeable = {{ 332 /*page_code*/SMS_INFO_EXCEPTIONS_PAGE | SMPH_SPF, 333 /*subpage_code*/0x02, 334 /*page_length*/{CTL_LBPM_LEN >> 8, CTL_LBPM_LEN}, 335 /*flags*/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 357const static struct scsi_cddvd_capabilities_page cddvd_page_default = { 358 /*page_code*/SMS_CDDVD_CAPS_PAGE, 359 /*page_length*/sizeof(struct scsi_cddvd_capabilities_page) - 2, 360 /*caps1*/0x3f, 361 /*caps2*/0x00, 362 /*caps3*/0xf0, 363 /*caps4*/0x00, 364 /*caps5*/0x29, 365 /*caps6*/0x00, 366 /*obsolete*/{0, 0}, 367 /*nvol_levels*/{0, 0}, 368 /*buffer_size*/{8, 0}, 369 /*obsolete2*/{0, 0}, 370 /*reserved*/0, 371 /*digital*/0, 372 /*obsolete3*/0, 373 /*copy_management*/0, 374 /*reserved2*/0, 375 /*rotation_control*/0, 376 /*cur_write_speed*/0, 377 /*num_speed_descr*/0, 378}; 379 380const static struct scsi_cddvd_capabilities_page cddvd_page_changeable = { 381 /*page_code*/SMS_CDDVD_CAPS_PAGE, 382 /*page_length*/sizeof(struct scsi_cddvd_capabilities_page) - 2, 383 /*caps1*/0, 384 /*caps2*/0, 385 /*caps3*/0, 386 /*caps4*/0, 387 /*caps5*/0, 388 /*caps6*/0, 389 /*obsolete*/{0, 0}, 390 /*nvol_levels*/{0, 0}, 391 /*buffer_size*/{0, 0}, 392 /*obsolete2*/{0, 0}, 393 /*reserved*/0, 394 /*digital*/0, 395 /*obsolete3*/0, 396 /*copy_management*/0, 397 /*reserved2*/0, 398 /*rotation_control*/0, 399 /*cur_write_speed*/0, 400 /*num_speed_descr*/0, 401}; 402 403SYSCTL_NODE(_kern_cam, OID_AUTO, ctl, CTLFLAG_RD, 0, "CAM Target Layer"); 404static int worker_threads = -1; 405SYSCTL_INT(_kern_cam_ctl, OID_AUTO, worker_threads, CTLFLAG_RDTUN, 406 &worker_threads, 1, "Number of worker threads"); 407static int ctl_debug = CTL_DEBUG_NONE; 408SYSCTL_INT(_kern_cam_ctl, OID_AUTO, debug, CTLFLAG_RWTUN, 409 &ctl_debug, 0, "Enabled debug flags"); 410 411/* 412 * Supported pages (0x00), Serial number (0x80), Device ID (0x83), 413 * Extended INQUIRY Data (0x86), Mode Page Policy (0x87), 414 * SCSI Ports (0x88), Third-party Copy (0x8F), Block limits (0xB0), 415 * Block Device Characteristics (0xB1) and Logical Block Provisioning (0xB2) 416 */ 417#define SCSI_EVPD_NUM_SUPPORTED_PAGES 10 418 419static void ctl_isc_event_handler(ctl_ha_channel chanel, ctl_ha_event event, 420 int param); 421static void ctl_copy_sense_data(union ctl_ha_msg *src, union ctl_io *dest); 422static void ctl_copy_sense_data_back(union ctl_io *src, union ctl_ha_msg *dest); 423static int ctl_init(void); 424void ctl_shutdown(void); 425static int ctl_open(struct cdev *dev, int flags, int fmt, struct thread *td); 426static int ctl_close(struct cdev *dev, int flags, int fmt, struct thread *td); 427static int ctl_serialize_other_sc_cmd(struct ctl_scsiio *ctsio); 428static void ctl_ioctl_fill_ooa(struct ctl_lun *lun, uint32_t *cur_fill_num, 429 struct ctl_ooa *ooa_hdr, 430 struct ctl_ooa_entry *kern_entries); 431static int ctl_ioctl(struct cdev *dev, u_long cmd, caddr_t addr, int flag, 432 struct thread *td); 433static int ctl_alloc_lun(struct ctl_softc *ctl_softc, struct ctl_lun *lun, 434 struct ctl_be_lun *be_lun); 435static int ctl_free_lun(struct ctl_lun *lun); 436static void ctl_create_lun(struct ctl_be_lun *be_lun); 437static struct ctl_port * ctl_io_port(struct ctl_io_hdr *io_hdr); 438 439static int ctl_do_mode_select(union ctl_io *io); 440static int ctl_pro_preempt(struct ctl_softc *softc, struct ctl_lun *lun, 441 uint64_t res_key, uint64_t sa_res_key, 442 uint8_t type, uint32_t residx, 443 struct ctl_scsiio *ctsio, 444 struct scsi_per_res_out *cdb, 445 struct scsi_per_res_out_parms* param); 446static void ctl_pro_preempt_other(struct ctl_lun *lun, 447 union ctl_ha_msg *msg); 448static void ctl_hndl_per_res_out_on_other_sc(union ctl_ha_msg *msg); 449static int ctl_inquiry_evpd_supported(struct ctl_scsiio *ctsio, int alloc_len); 450static int ctl_inquiry_evpd_serial(struct ctl_scsiio *ctsio, int alloc_len); 451static int ctl_inquiry_evpd_devid(struct ctl_scsiio *ctsio, int alloc_len); 452static int ctl_inquiry_evpd_eid(struct ctl_scsiio *ctsio, int alloc_len); 453static int ctl_inquiry_evpd_mpp(struct ctl_scsiio *ctsio, int alloc_len); 454static int ctl_inquiry_evpd_scsi_ports(struct ctl_scsiio *ctsio, 455 int alloc_len); 456static int ctl_inquiry_evpd_block_limits(struct ctl_scsiio *ctsio, 457 int alloc_len); 458static int ctl_inquiry_evpd_bdc(struct ctl_scsiio *ctsio, int alloc_len); 459static int ctl_inquiry_evpd_lbp(struct ctl_scsiio *ctsio, int alloc_len); 460static int ctl_inquiry_evpd(struct ctl_scsiio *ctsio); 461static int ctl_inquiry_std(struct ctl_scsiio *ctsio); 462static int ctl_get_lba_len(union ctl_io *io, uint64_t *lba, uint64_t *len); 463static ctl_action ctl_extent_check(union ctl_io *io1, union ctl_io *io2, 464 bool seq); 465static ctl_action ctl_extent_check_seq(union ctl_io *io1, union ctl_io *io2); 466static ctl_action ctl_check_for_blockage(struct ctl_lun *lun, 467 union ctl_io *pending_io, union ctl_io *ooa_io); 468static ctl_action ctl_check_ooa(struct ctl_lun *lun, union ctl_io *pending_io, 469 union ctl_io *starting_io); 470static int ctl_check_blocked(struct ctl_lun *lun); 471static int ctl_scsiio_lun_check(struct ctl_lun *lun, 472 const struct ctl_cmd_entry *entry, 473 struct ctl_scsiio *ctsio); 474static void ctl_failover_lun(union ctl_io *io); 475static int ctl_scsiio_precheck(struct ctl_softc *ctl_softc, 476 struct ctl_scsiio *ctsio); 477static int ctl_scsiio(struct ctl_scsiio *ctsio); 478 479static int ctl_bus_reset(struct ctl_softc *ctl_softc, union ctl_io *io); 480static int ctl_target_reset(struct ctl_softc *ctl_softc, union ctl_io *io, 481 ctl_ua_type ua_type); 482static int ctl_do_lun_reset(struct ctl_lun *lun, union ctl_io *io, 483 ctl_ua_type ua_type); 484static int ctl_lun_reset(struct ctl_softc *ctl_softc, union ctl_io *io); 485static int ctl_abort_task(union ctl_io *io); 486static int ctl_abort_task_set(union ctl_io *io); 487static int ctl_query_task(union ctl_io *io, int task_set); 488static int ctl_i_t_nexus_reset(union ctl_io *io); 489static int ctl_query_async_event(union ctl_io *io); 490static void ctl_run_task(union ctl_io *io); 491#ifdef CTL_IO_DELAY 492static void ctl_datamove_timer_wakeup(void *arg); 493static void ctl_done_timer_wakeup(void *arg); 494#endif /* CTL_IO_DELAY */ 495 496static void ctl_send_datamove_done(union ctl_io *io, int have_lock); 497static void ctl_datamove_remote_write_cb(struct ctl_ha_dt_req *rq); 498static int ctl_datamove_remote_dm_write_cb(union ctl_io *io); 499static void ctl_datamove_remote_write(union ctl_io *io); 500static int ctl_datamove_remote_dm_read_cb(union ctl_io *io); 501static void ctl_datamove_remote_read_cb(struct ctl_ha_dt_req *rq); 502static int ctl_datamove_remote_sgl_setup(union ctl_io *io); 503static int ctl_datamove_remote_xfer(union ctl_io *io, unsigned command, 504 ctl_ha_dt_cb callback); 505static void ctl_datamove_remote_read(union ctl_io *io); 506static void ctl_datamove_remote(union ctl_io *io); 507static void ctl_process_done(union ctl_io *io); 508static void ctl_lun_thread(void *arg); 509static void ctl_thresh_thread(void *arg); 510static void ctl_work_thread(void *arg); 511static void ctl_enqueue_incoming(union ctl_io *io); 512static void ctl_enqueue_rtr(union ctl_io *io); 513static void ctl_enqueue_done(union ctl_io *io); 514static void ctl_enqueue_isc(union ctl_io *io); 515static const struct ctl_cmd_entry * 516 ctl_get_cmd_entry(struct ctl_scsiio *ctsio, int *sa); 517static const struct ctl_cmd_entry * 518 ctl_validate_command(struct ctl_scsiio *ctsio); 519static int ctl_cmd_applicable(uint8_t lun_type, 520 const struct ctl_cmd_entry *entry); 521 522static uint64_t ctl_get_prkey(struct ctl_lun *lun, uint32_t residx); 523static void ctl_clr_prkey(struct ctl_lun *lun, uint32_t residx); 524static void ctl_alloc_prkey(struct ctl_lun *lun, uint32_t residx); 525static void ctl_set_prkey(struct ctl_lun *lun, uint32_t residx, uint64_t key); 526 527/* 528 * Load the serialization table. This isn't very pretty, but is probably 529 * the easiest way to do it. 530 */ 531#include "ctl_ser_table.c" 532 533/* 534 * We only need to define open, close and ioctl routines for this driver. 535 */ 536static struct cdevsw ctl_cdevsw = { 537 .d_version = D_VERSION, 538 .d_flags = 0, 539 .d_open = ctl_open, 540 .d_close = ctl_close, 541 .d_ioctl = ctl_ioctl, 542 .d_name = "ctl", 543}; 544 545 546MALLOC_DEFINE(M_CTL, "ctlmem", "Memory used for CTL"); 547 548static int ctl_module_event_handler(module_t, int /*modeventtype_t*/, void *); 549 550static moduledata_t ctl_moduledata = { 551 "ctl", 552 ctl_module_event_handler, 553 NULL 554}; 555 556DECLARE_MODULE(ctl, ctl_moduledata, SI_SUB_CONFIGURE, SI_ORDER_THIRD); 557MODULE_VERSION(ctl, 1); 558 559static struct ctl_frontend ha_frontend = 560{ 561 .name = "ha", 562}; 563 564static void 565ctl_ha_datamove(union ctl_io *io) 566{ 567 struct ctl_lun *lun; 568 struct ctl_sg_entry *sgl; 569 union ctl_ha_msg msg; 570 uint32_t sg_entries_sent; 571 int do_sg_copy, i, j; 572 573 lun = (struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 574 memset(&msg.dt, 0, sizeof(msg.dt)); 575 msg.hdr.msg_type = CTL_MSG_DATAMOVE; 576 msg.hdr.original_sc = io->io_hdr.original_sc; 577 msg.hdr.serializing_sc = io; 578 msg.hdr.nexus = io->io_hdr.nexus; 579 msg.hdr.status = io->io_hdr.status; 580 msg.dt.flags = io->io_hdr.flags; 581 582 /* 583 * We convert everything into a S/G list here. We can't 584 * pass by reference, only by value between controllers. 585 * So we can't pass a pointer to the S/G list, only as many 586 * S/G entries as we can fit in here. If it's possible for 587 * us to get more than CTL_HA_MAX_SG_ENTRIES S/G entries, 588 * then we need to break this up into multiple transfers. 589 */ 590 if (io->scsiio.kern_sg_entries == 0) { 591 msg.dt.kern_sg_entries = 1; 592#if 0 593 if (io->io_hdr.flags & CTL_FLAG_BUS_ADDR) { 594 msg.dt.sg_list[0].addr = io->scsiio.kern_data_ptr; 595 } else { 596 /* XXX KDM use busdma here! */ 597 msg.dt.sg_list[0].addr = 598 (void *)vtophys(io->scsiio.kern_data_ptr); 599 } 600#else 601 KASSERT((io->io_hdr.flags & CTL_FLAG_BUS_ADDR) == 0, 602 ("HA does not support BUS_ADDR")); 603 msg.dt.sg_list[0].addr = io->scsiio.kern_data_ptr; 604#endif 605 msg.dt.sg_list[0].len = io->scsiio.kern_data_len; 606 do_sg_copy = 0; 607 } else { 608 msg.dt.kern_sg_entries = io->scsiio.kern_sg_entries; 609 do_sg_copy = 1; 610 } 611 612 msg.dt.kern_data_len = io->scsiio.kern_data_len; 613 msg.dt.kern_total_len = io->scsiio.kern_total_len; 614 msg.dt.kern_data_resid = io->scsiio.kern_data_resid; 615 msg.dt.kern_rel_offset = io->scsiio.kern_rel_offset; 616 msg.dt.sg_sequence = 0; 617 618 /* 619 * Loop until we've sent all of the S/G entries. On the 620 * other end, we'll recompose these S/G entries into one 621 * contiguous list before processing. 622 */ 623 for (sg_entries_sent = 0; sg_entries_sent < msg.dt.kern_sg_entries; 624 msg.dt.sg_sequence++) { 625 msg.dt.cur_sg_entries = MIN((sizeof(msg.dt.sg_list) / 626 sizeof(msg.dt.sg_list[0])), 627 msg.dt.kern_sg_entries - sg_entries_sent); 628 if (do_sg_copy != 0) { 629 sgl = (struct ctl_sg_entry *)io->scsiio.kern_data_ptr; 630 for (i = sg_entries_sent, j = 0; 631 i < msg.dt.cur_sg_entries; i++, j++) { 632#if 0 633 if (io->io_hdr.flags & CTL_FLAG_BUS_ADDR) { 634 msg.dt.sg_list[j].addr = sgl[i].addr; 635 } else { 636 /* XXX KDM use busdma here! */ 637 msg.dt.sg_list[j].addr = 638 (void *)vtophys(sgl[i].addr); 639 } 640#else 641 KASSERT((io->io_hdr.flags & 642 CTL_FLAG_BUS_ADDR) == 0, 643 ("HA does not support BUS_ADDR")); 644 msg.dt.sg_list[j].addr = sgl[i].addr; 645#endif 646 msg.dt.sg_list[j].len = sgl[i].len; 647 } 648 } 649 650 sg_entries_sent += msg.dt.cur_sg_entries; 651 msg.dt.sg_last = (sg_entries_sent >= msg.dt.kern_sg_entries); 652 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, 653 sizeof(msg.dt) - sizeof(msg.dt.sg_list) + 654 sizeof(struct ctl_sg_entry) * msg.dt.cur_sg_entries, 655 M_WAITOK) > CTL_HA_STATUS_SUCCESS) { 656 io->io_hdr.port_status = 31341; 657 io->scsiio.be_move_done(io); 658 return; 659 } 660 msg.dt.sent_sg_entries = sg_entries_sent; 661 } 662 663 /* 664 * Officially handover the request from us to peer. 665 * If failover has just happened, then we must return error. 666 * If failover happen just after, then it is not our problem. 667 */ 668 if (lun) 669 mtx_lock(&lun->lun_lock); 670 if (io->io_hdr.flags & CTL_FLAG_FAILOVER) { 671 if (lun) 672 mtx_unlock(&lun->lun_lock); 673 io->io_hdr.port_status = 31342; 674 io->scsiio.be_move_done(io); 675 return; 676 } 677 io->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 678 io->io_hdr.flags |= CTL_FLAG_DMA_INPROG; 679 if (lun) 680 mtx_unlock(&lun->lun_lock); 681} 682 683static void 684ctl_ha_done(union ctl_io *io) 685{ 686 union ctl_ha_msg msg; 687 688 if (io->io_hdr.io_type == CTL_IO_SCSI) { 689 memset(&msg, 0, sizeof(msg)); 690 msg.hdr.msg_type = CTL_MSG_FINISH_IO; 691 msg.hdr.original_sc = io->io_hdr.original_sc; 692 msg.hdr.nexus = io->io_hdr.nexus; 693 msg.hdr.status = io->io_hdr.status; 694 msg.scsi.scsi_status = io->scsiio.scsi_status; 695 msg.scsi.tag_num = io->scsiio.tag_num; 696 msg.scsi.tag_type = io->scsiio.tag_type; 697 msg.scsi.sense_len = io->scsiio.sense_len; 698 msg.scsi.sense_residual = io->scsiio.sense_residual; 699 msg.scsi.residual = io->scsiio.residual; 700 memcpy(&msg.scsi.sense_data, &io->scsiio.sense_data, 701 io->scsiio.sense_len); 702 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, 703 sizeof(msg.scsi) - sizeof(msg.scsi.sense_data) + 704 msg.scsi.sense_len, M_WAITOK); 705 } 706 ctl_free_io(io); 707} 708 709static void 710ctl_isc_handler_finish_xfer(struct ctl_softc *ctl_softc, 711 union ctl_ha_msg *msg_info) 712{ 713 struct ctl_scsiio *ctsio; 714 715 if (msg_info->hdr.original_sc == NULL) { 716 printf("%s: original_sc == NULL!\n", __func__); 717 /* XXX KDM now what? */ 718 return; 719 } 720 721 ctsio = &msg_info->hdr.original_sc->scsiio; 722 ctsio->io_hdr.flags |= CTL_FLAG_IO_ACTIVE; 723 ctsio->io_hdr.msg_type = CTL_MSG_FINISH_IO; 724 ctsio->io_hdr.status = msg_info->hdr.status; 725 ctsio->scsi_status = msg_info->scsi.scsi_status; 726 ctsio->sense_len = msg_info->scsi.sense_len; 727 ctsio->sense_residual = msg_info->scsi.sense_residual; 728 ctsio->residual = msg_info->scsi.residual; 729 memcpy(&ctsio->sense_data, &msg_info->scsi.sense_data, 730 msg_info->scsi.sense_len); 731 ctl_enqueue_isc((union ctl_io *)ctsio); 732} 733 734static void 735ctl_isc_handler_finish_ser_only(struct ctl_softc *ctl_softc, 736 union ctl_ha_msg *msg_info) 737{ 738 struct ctl_scsiio *ctsio; 739 740 if (msg_info->hdr.serializing_sc == NULL) { 741 printf("%s: serializing_sc == NULL!\n", __func__); 742 /* XXX KDM now what? */ 743 return; 744 } 745 746 ctsio = &msg_info->hdr.serializing_sc->scsiio; 747 ctsio->io_hdr.msg_type = CTL_MSG_FINISH_IO; 748 ctl_enqueue_isc((union ctl_io *)ctsio); 749} 750 751void 752ctl_isc_announce_lun(struct ctl_lun *lun) 753{ 754 struct ctl_softc *softc = lun->ctl_softc; 755 union ctl_ha_msg *msg; 756 struct ctl_ha_msg_lun_pr_key pr_key; 757 int i, k; 758 759 if (softc->ha_link != CTL_HA_LINK_ONLINE) 760 return; 761 mtx_lock(&lun->lun_lock); 762 i = sizeof(msg->lun); 763 if (lun->lun_devid) 764 i += lun->lun_devid->len; 765 i += sizeof(pr_key) * lun->pr_key_count; 766alloc: 767 mtx_unlock(&lun->lun_lock); 768 msg = malloc(i, M_CTL, M_WAITOK); 769 mtx_lock(&lun->lun_lock); 770 k = sizeof(msg->lun); 771 if (lun->lun_devid) 772 k += lun->lun_devid->len; 773 k += sizeof(pr_key) * lun->pr_key_count; 774 if (i < k) { 775 free(msg, M_CTL); 776 i = k; 777 goto alloc; 778 } 779 bzero(&msg->lun, sizeof(msg->lun)); 780 msg->hdr.msg_type = CTL_MSG_LUN_SYNC; 781 msg->hdr.nexus.targ_lun = lun->lun; 782 msg->hdr.nexus.targ_mapped_lun = lun->lun; 783 msg->lun.flags = lun->flags; 784 msg->lun.pr_generation = lun->pr_generation; 785 msg->lun.pr_res_idx = lun->pr_res_idx; 786 msg->lun.pr_res_type = lun->pr_res_type; 787 msg->lun.pr_key_count = lun->pr_key_count; 788 i = 0; 789 if (lun->lun_devid) { 790 msg->lun.lun_devid_len = lun->lun_devid->len; 791 memcpy(&msg->lun.data[i], lun->lun_devid->data, 792 msg->lun.lun_devid_len); 793 i += msg->lun.lun_devid_len; 794 } 795 for (k = 0; k < CTL_MAX_INITIATORS; k++) { 796 if ((pr_key.pr_key = ctl_get_prkey(lun, k)) == 0) 797 continue; 798 pr_key.pr_iid = k; 799 memcpy(&msg->lun.data[i], &pr_key, sizeof(pr_key)); 800 i += sizeof(pr_key); 801 } 802 mtx_unlock(&lun->lun_lock); 803 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg->port, sizeof(msg->port) + i, 804 M_WAITOK); 805 free(msg, M_CTL); 806 807 if (lun->flags & CTL_LUN_PRIMARY_SC) { 808 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 809 ctl_isc_announce_mode(lun, -1, 810 lun->mode_pages.index[i].page_code & SMPH_PC_MASK, 811 lun->mode_pages.index[i].subpage); 812 } 813 } 814} 815 816void 817ctl_isc_announce_port(struct ctl_port *port) 818{ 819 struct ctl_softc *softc = port->ctl_softc; 820 union ctl_ha_msg *msg; 821 int i; 822 823 if (port->targ_port < softc->port_min || 824 port->targ_port >= softc->port_max || 825 softc->ha_link != CTL_HA_LINK_ONLINE) 826 return; 827 i = sizeof(msg->port) + strlen(port->port_name) + 1; 828 if (port->lun_map) 829 i += sizeof(uint32_t) * CTL_MAX_LUNS; 830 if (port->port_devid) 831 i += port->port_devid->len; 832 if (port->target_devid) 833 i += port->target_devid->len; 834 if (port->init_devid) 835 i += port->init_devid->len; 836 msg = malloc(i, M_CTL, M_WAITOK); 837 bzero(&msg->port, sizeof(msg->port)); 838 msg->hdr.msg_type = CTL_MSG_PORT_SYNC; 839 msg->hdr.nexus.targ_port = port->targ_port; 840 msg->port.port_type = port->port_type; 841 msg->port.physical_port = port->physical_port; 842 msg->port.virtual_port = port->virtual_port; 843 msg->port.status = port->status; 844 i = 0; 845 msg->port.name_len = sprintf(&msg->port.data[i], 846 "%d:%s", softc->ha_id, port->port_name) + 1; 847 i += msg->port.name_len; 848 if (port->lun_map) { 849 msg->port.lun_map_len = sizeof(uint32_t) * CTL_MAX_LUNS; 850 memcpy(&msg->port.data[i], port->lun_map, 851 msg->port.lun_map_len); 852 i += msg->port.lun_map_len; 853 } 854 if (port->port_devid) { 855 msg->port.port_devid_len = port->port_devid->len; 856 memcpy(&msg->port.data[i], port->port_devid->data, 857 msg->port.port_devid_len); 858 i += msg->port.port_devid_len; 859 } 860 if (port->target_devid) { 861 msg->port.target_devid_len = port->target_devid->len; 862 memcpy(&msg->port.data[i], port->target_devid->data, 863 msg->port.target_devid_len); 864 i += msg->port.target_devid_len; 865 } 866 if (port->init_devid) { 867 msg->port.init_devid_len = port->init_devid->len; 868 memcpy(&msg->port.data[i], port->init_devid->data, 869 msg->port.init_devid_len); 870 i += msg->port.init_devid_len; 871 } 872 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg->port, sizeof(msg->port) + i, 873 M_WAITOK); 874 free(msg, M_CTL); 875} 876 877void 878ctl_isc_announce_iid(struct ctl_port *port, int iid) 879{ 880 struct ctl_softc *softc = port->ctl_softc; 881 union ctl_ha_msg *msg; 882 int i, l; 883 884 if (port->targ_port < softc->port_min || 885 port->targ_port >= softc->port_max || 886 softc->ha_link != CTL_HA_LINK_ONLINE) 887 return; 888 mtx_lock(&softc->ctl_lock); 889 i = sizeof(msg->iid); 890 l = 0; 891 if (port->wwpn_iid[iid].name) 892 l = strlen(port->wwpn_iid[iid].name) + 1; 893 i += l; 894 msg = malloc(i, M_CTL, M_NOWAIT); 895 if (msg == NULL) { 896 mtx_unlock(&softc->ctl_lock); 897 return; 898 } 899 bzero(&msg->iid, sizeof(msg->iid)); 900 msg->hdr.msg_type = CTL_MSG_IID_SYNC; 901 msg->hdr.nexus.targ_port = port->targ_port; 902 msg->hdr.nexus.initid = iid; 903 msg->iid.in_use = port->wwpn_iid[iid].in_use; 904 msg->iid.name_len = l; 905 msg->iid.wwpn = port->wwpn_iid[iid].wwpn; 906 if (port->wwpn_iid[iid].name) 907 strlcpy(msg->iid.data, port->wwpn_iid[iid].name, l); 908 mtx_unlock(&softc->ctl_lock); 909 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg->iid, i, M_NOWAIT); 910 free(msg, M_CTL); 911} 912 913void 914ctl_isc_announce_mode(struct ctl_lun *lun, uint32_t initidx, 915 uint8_t page, uint8_t subpage) 916{ 917 struct ctl_softc *softc = lun->ctl_softc; 918 union ctl_ha_msg msg; 919 u_int i; 920 921 if (softc->ha_link != CTL_HA_LINK_ONLINE) 922 return; 923 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 924 if ((lun->mode_pages.index[i].page_code & SMPH_PC_MASK) == 925 page && lun->mode_pages.index[i].subpage == subpage) 926 break; 927 } 928 if (i == CTL_NUM_MODE_PAGES) 929 return; 930 931 /* Don't try to replicate pages not present on this device. */ 932 if (lun->mode_pages.index[i].page_data == NULL) 933 return; 934 935 bzero(&msg.mode, sizeof(msg.mode)); 936 msg.hdr.msg_type = CTL_MSG_MODE_SYNC; 937 msg.hdr.nexus.targ_port = initidx / CTL_MAX_INIT_PER_PORT; 938 msg.hdr.nexus.initid = initidx % CTL_MAX_INIT_PER_PORT; 939 msg.hdr.nexus.targ_lun = lun->lun; 940 msg.hdr.nexus.targ_mapped_lun = lun->lun; 941 msg.mode.page_code = page; 942 msg.mode.subpage = subpage; 943 msg.mode.page_len = lun->mode_pages.index[i].page_len; 944 memcpy(msg.mode.data, lun->mode_pages.index[i].page_data, 945 msg.mode.page_len); 946 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg.mode, sizeof(msg.mode), 947 M_WAITOK); 948} 949 950static void 951ctl_isc_ha_link_up(struct ctl_softc *softc) 952{ 953 struct ctl_port *port; 954 struct ctl_lun *lun; 955 union ctl_ha_msg msg; 956 int i; 957 958 /* Announce this node parameters to peer for validation. */ 959 msg.login.msg_type = CTL_MSG_LOGIN; 960 msg.login.version = CTL_HA_VERSION; 961 msg.login.ha_mode = softc->ha_mode; 962 msg.login.ha_id = softc->ha_id; 963 msg.login.max_luns = CTL_MAX_LUNS; 964 msg.login.max_ports = CTL_MAX_PORTS; 965 msg.login.max_init_per_port = CTL_MAX_INIT_PER_PORT; 966 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg.login, sizeof(msg.login), 967 M_WAITOK); 968 969 STAILQ_FOREACH(port, &softc->port_list, links) { 970 ctl_isc_announce_port(port); 971 for (i = 0; i < CTL_MAX_INIT_PER_PORT; i++) { 972 if (port->wwpn_iid[i].in_use) 973 ctl_isc_announce_iid(port, i); 974 } 975 } 976 STAILQ_FOREACH(lun, &softc->lun_list, links) 977 ctl_isc_announce_lun(lun); 978} 979 980static void 981ctl_isc_ha_link_down(struct ctl_softc *softc) 982{ 983 struct ctl_port *port; 984 struct ctl_lun *lun; 985 union ctl_io *io; 986 int i; 987 988 mtx_lock(&softc->ctl_lock); 989 STAILQ_FOREACH(lun, &softc->lun_list, links) { 990 mtx_lock(&lun->lun_lock); 991 if (lun->flags & CTL_LUN_PEER_SC_PRIMARY) { 992 lun->flags &= ~CTL_LUN_PEER_SC_PRIMARY; 993 ctl_est_ua_all(lun, -1, CTL_UA_ASYM_ACC_CHANGE); 994 } 995 mtx_unlock(&lun->lun_lock); 996 997 mtx_unlock(&softc->ctl_lock); 998 io = ctl_alloc_io(softc->othersc_pool); 999 mtx_lock(&softc->ctl_lock); 1000 ctl_zero_io(io); 1001 io->io_hdr.msg_type = CTL_MSG_FAILOVER; 1002 io->io_hdr.nexus.targ_mapped_lun = lun->lun; 1003 ctl_enqueue_isc(io); 1004 } 1005 1006 STAILQ_FOREACH(port, &softc->port_list, links) { 1007 if (port->targ_port >= softc->port_min && 1008 port->targ_port < softc->port_max) 1009 continue; 1010 port->status &= ~CTL_PORT_STATUS_ONLINE; 1011 for (i = 0; i < CTL_MAX_INIT_PER_PORT; i++) { 1012 port->wwpn_iid[i].in_use = 0; 1013 free(port->wwpn_iid[i].name, M_CTL); 1014 port->wwpn_iid[i].name = NULL; 1015 } 1016 } 1017 mtx_unlock(&softc->ctl_lock); 1018} 1019 1020static void 1021ctl_isc_ua(struct ctl_softc *softc, union ctl_ha_msg *msg, int len) 1022{ 1023 struct ctl_lun *lun; 1024 uint32_t iid = ctl_get_initindex(&msg->hdr.nexus); 1025 1026 mtx_lock(&softc->ctl_lock); 1027 if (msg->hdr.nexus.targ_lun < CTL_MAX_LUNS && 1028 (lun = softc->ctl_luns[msg->hdr.nexus.targ_mapped_lun]) != NULL) { 1029 mtx_lock(&lun->lun_lock); 1030 mtx_unlock(&softc->ctl_lock); 1031 if (msg->ua.ua_type == CTL_UA_THIN_PROV_THRES && 1032 msg->ua.ua_set) 1033 memcpy(lun->ua_tpt_info, msg->ua.ua_info, 8); 1034 if (msg->ua.ua_all) { 1035 if (msg->ua.ua_set) 1036 ctl_est_ua_all(lun, iid, msg->ua.ua_type); 1037 else 1038 ctl_clr_ua_all(lun, iid, msg->ua.ua_type); 1039 } else { 1040 if (msg->ua.ua_set) 1041 ctl_est_ua(lun, iid, msg->ua.ua_type); 1042 else 1043 ctl_clr_ua(lun, iid, msg->ua.ua_type); 1044 } 1045 mtx_unlock(&lun->lun_lock); 1046 } else 1047 mtx_unlock(&softc->ctl_lock); 1048} 1049 1050static void 1051ctl_isc_lun_sync(struct ctl_softc *softc, union ctl_ha_msg *msg, int len) 1052{ 1053 struct ctl_lun *lun; 1054 struct ctl_ha_msg_lun_pr_key pr_key; 1055 int i, k; 1056 ctl_lun_flags oflags; 1057 uint32_t targ_lun; 1058 1059 targ_lun = msg->hdr.nexus.targ_mapped_lun; 1060 mtx_lock(&softc->ctl_lock); 1061 if ((targ_lun >= CTL_MAX_LUNS) || 1062 ((lun = softc->ctl_luns[targ_lun]) == NULL)) { 1063 mtx_unlock(&softc->ctl_lock); 1064 return; 1065 } 1066 mtx_lock(&lun->lun_lock); 1067 mtx_unlock(&softc->ctl_lock); 1068 if (lun->flags & CTL_LUN_DISABLED) { 1069 mtx_unlock(&lun->lun_lock); 1070 return; 1071 } 1072 i = (lun->lun_devid != NULL) ? lun->lun_devid->len : 0; 1073 if (msg->lun.lun_devid_len != i || (i > 0 && 1074 memcmp(&msg->lun.data[0], lun->lun_devid->data, i) != 0)) { 1075 mtx_unlock(&lun->lun_lock); 1076 printf("%s: Received conflicting HA LUN %d\n", 1077 __func__, msg->hdr.nexus.targ_lun); 1078 return; 1079 } else { 1080 /* Record whether peer is primary. */ 1081 oflags = lun->flags; 1082 if ((msg->lun.flags & CTL_LUN_PRIMARY_SC) && 1083 (msg->lun.flags & CTL_LUN_DISABLED) == 0) 1084 lun->flags |= CTL_LUN_PEER_SC_PRIMARY; 1085 else 1086 lun->flags &= ~CTL_LUN_PEER_SC_PRIMARY; 1087 if (oflags != lun->flags) 1088 ctl_est_ua_all(lun, -1, CTL_UA_ASYM_ACC_CHANGE); 1089 1090 /* If peer is primary and we are not -- use data */ 1091 if ((lun->flags & CTL_LUN_PRIMARY_SC) == 0 && 1092 (lun->flags & CTL_LUN_PEER_SC_PRIMARY)) { 1093 lun->pr_generation = msg->lun.pr_generation; 1094 lun->pr_res_idx = msg->lun.pr_res_idx; 1095 lun->pr_res_type = msg->lun.pr_res_type; 1096 lun->pr_key_count = msg->lun.pr_key_count; 1097 for (k = 0; k < CTL_MAX_INITIATORS; k++) 1098 ctl_clr_prkey(lun, k); 1099 for (k = 0; k < msg->lun.pr_key_count; k++) { 1100 memcpy(&pr_key, &msg->lun.data[i], 1101 sizeof(pr_key)); 1102 ctl_alloc_prkey(lun, pr_key.pr_iid); 1103 ctl_set_prkey(lun, pr_key.pr_iid, 1104 pr_key.pr_key); 1105 i += sizeof(pr_key); 1106 } 1107 } 1108 1109 mtx_unlock(&lun->lun_lock); 1110 CTL_DEBUG_PRINT(("%s: Known LUN %d, peer is %s\n", 1111 __func__, msg->hdr.nexus.targ_lun, 1112 (msg->lun.flags & CTL_LUN_PRIMARY_SC) ? 1113 "primary" : "secondary")); 1114 1115 /* If we are primary but peer doesn't know -- notify */ 1116 if ((lun->flags & CTL_LUN_PRIMARY_SC) && 1117 (msg->lun.flags & CTL_LUN_PEER_SC_PRIMARY) == 0) 1118 ctl_isc_announce_lun(lun); 1119 } 1120} 1121 1122static void 1123ctl_isc_port_sync(struct ctl_softc *softc, union ctl_ha_msg *msg, int len) 1124{ 1125 struct ctl_port *port; 1126 struct ctl_lun *lun; 1127 int i, new; 1128 1129 port = softc->ctl_ports[msg->hdr.nexus.targ_port]; 1130 if (port == NULL) { 1131 CTL_DEBUG_PRINT(("%s: New port %d\n", __func__, 1132 msg->hdr.nexus.targ_port)); 1133 new = 1; 1134 port = malloc(sizeof(*port), M_CTL, M_WAITOK | M_ZERO); 1135 port->frontend = &ha_frontend; 1136 port->targ_port = msg->hdr.nexus.targ_port; 1137 port->fe_datamove = ctl_ha_datamove; 1138 port->fe_done = ctl_ha_done; 1139 } else if (port->frontend == &ha_frontend) { 1140 CTL_DEBUG_PRINT(("%s: Updated port %d\n", __func__, 1141 msg->hdr.nexus.targ_port)); 1142 new = 0; 1143 } else { 1144 printf("%s: Received conflicting HA port %d\n", 1145 __func__, msg->hdr.nexus.targ_port); 1146 return; 1147 } 1148 port->port_type = msg->port.port_type; 1149 port->physical_port = msg->port.physical_port; 1150 port->virtual_port = msg->port.virtual_port; 1151 port->status = msg->port.status; 1152 i = 0; 1153 free(port->port_name, M_CTL); 1154 port->port_name = strndup(&msg->port.data[i], msg->port.name_len, 1155 M_CTL); 1156 i += msg->port.name_len; 1157 if (msg->port.lun_map_len != 0) { 1158 if (port->lun_map == NULL) 1159 port->lun_map = malloc(sizeof(uint32_t) * CTL_MAX_LUNS, 1160 M_CTL, M_WAITOK); 1161 memcpy(port->lun_map, &msg->port.data[i], 1162 sizeof(uint32_t) * CTL_MAX_LUNS); 1163 i += msg->port.lun_map_len; 1164 } else { 1165 free(port->lun_map, M_CTL); 1166 port->lun_map = NULL; 1167 } 1168 if (msg->port.port_devid_len != 0) { 1169 if (port->port_devid == NULL || 1170 port->port_devid->len != msg->port.port_devid_len) { 1171 free(port->port_devid, M_CTL); 1172 port->port_devid = malloc(sizeof(struct ctl_devid) + 1173 msg->port.port_devid_len, M_CTL, M_WAITOK); 1174 } 1175 memcpy(port->port_devid->data, &msg->port.data[i], 1176 msg->port.port_devid_len); 1177 port->port_devid->len = msg->port.port_devid_len; 1178 i += msg->port.port_devid_len; 1179 } else { 1180 free(port->port_devid, M_CTL); 1181 port->port_devid = NULL; 1182 } 1183 if (msg->port.target_devid_len != 0) { 1184 if (port->target_devid == NULL || 1185 port->target_devid->len != msg->port.target_devid_len) { 1186 free(port->target_devid, M_CTL); 1187 port->target_devid = malloc(sizeof(struct ctl_devid) + 1188 msg->port.target_devid_len, M_CTL, M_WAITOK); 1189 } 1190 memcpy(port->target_devid->data, &msg->port.data[i], 1191 msg->port.target_devid_len); 1192 port->target_devid->len = msg->port.target_devid_len; 1193 i += msg->port.target_devid_len; 1194 } else { 1195 free(port->target_devid, M_CTL); 1196 port->target_devid = NULL; 1197 } 1198 if (msg->port.init_devid_len != 0) { 1199 if (port->init_devid == NULL || 1200 port->init_devid->len != msg->port.init_devid_len) { 1201 free(port->init_devid, M_CTL); 1202 port->init_devid = malloc(sizeof(struct ctl_devid) + 1203 msg->port.init_devid_len, M_CTL, M_WAITOK); 1204 } 1205 memcpy(port->init_devid->data, &msg->port.data[i], 1206 msg->port.init_devid_len); 1207 port->init_devid->len = msg->port.init_devid_len; 1208 i += msg->port.init_devid_len; 1209 } else { 1210 free(port->init_devid, M_CTL); 1211 port->init_devid = NULL; 1212 } 1213 if (new) { 1214 if (ctl_port_register(port) != 0) { 1215 printf("%s: ctl_port_register() failed with error\n", 1216 __func__); 1217 } 1218 } 1219 mtx_lock(&softc->ctl_lock); 1220 STAILQ_FOREACH(lun, &softc->lun_list, links) { 1221 if (ctl_lun_map_to_port(port, lun->lun) >= CTL_MAX_LUNS) 1222 continue; 1223 mtx_lock(&lun->lun_lock); 1224 ctl_est_ua_all(lun, -1, CTL_UA_INQ_CHANGE); 1225 mtx_unlock(&lun->lun_lock); 1226 } 1227 mtx_unlock(&softc->ctl_lock); 1228} 1229 1230static void 1231ctl_isc_iid_sync(struct ctl_softc *softc, union ctl_ha_msg *msg, int len) 1232{ 1233 struct ctl_port *port; 1234 int iid; 1235 1236 port = softc->ctl_ports[msg->hdr.nexus.targ_port]; 1237 if (port == NULL) { 1238 printf("%s: Received IID for unknown port %d\n", 1239 __func__, msg->hdr.nexus.targ_port); 1240 return; 1241 } 1242 iid = msg->hdr.nexus.initid; 1243 port->wwpn_iid[iid].in_use = msg->iid.in_use; 1244 port->wwpn_iid[iid].wwpn = msg->iid.wwpn; 1245 free(port->wwpn_iid[iid].name, M_CTL); 1246 if (msg->iid.name_len) { 1247 port->wwpn_iid[iid].name = strndup(&msg->iid.data[0], 1248 msg->iid.name_len, M_CTL); 1249 } else 1250 port->wwpn_iid[iid].name = NULL; 1251} 1252 1253static void 1254ctl_isc_login(struct ctl_softc *softc, union ctl_ha_msg *msg, int len) 1255{ 1256 1257 if (msg->login.version != CTL_HA_VERSION) { 1258 printf("CTL HA peers have different versions %d != %d\n", 1259 msg->login.version, CTL_HA_VERSION); 1260 ctl_ha_msg_abort(CTL_HA_CHAN_CTL); 1261 return; 1262 } 1263 if (msg->login.ha_mode != softc->ha_mode) { 1264 printf("CTL HA peers have different ha_mode %d != %d\n", 1265 msg->login.ha_mode, softc->ha_mode); 1266 ctl_ha_msg_abort(CTL_HA_CHAN_CTL); 1267 return; 1268 } 1269 if (msg->login.ha_id == softc->ha_id) { 1270 printf("CTL HA peers have same ha_id %d\n", msg->login.ha_id); 1271 ctl_ha_msg_abort(CTL_HA_CHAN_CTL); 1272 return; 1273 } 1274 if (msg->login.max_luns != CTL_MAX_LUNS || 1275 msg->login.max_ports != CTL_MAX_PORTS || 1276 msg->login.max_init_per_port != CTL_MAX_INIT_PER_PORT) { 1277 printf("CTL HA peers have different limits\n"); 1278 ctl_ha_msg_abort(CTL_HA_CHAN_CTL); 1279 return; 1280 } 1281} 1282 1283static void 1284ctl_isc_mode_sync(struct ctl_softc *softc, union ctl_ha_msg *msg, int len) 1285{ 1286 struct ctl_lun *lun; 1287 u_int i; 1288 uint32_t initidx, targ_lun; 1289 1290 targ_lun = msg->hdr.nexus.targ_mapped_lun; 1291 mtx_lock(&softc->ctl_lock); 1292 if ((targ_lun >= CTL_MAX_LUNS) || 1293 ((lun = softc->ctl_luns[targ_lun]) == NULL)) { 1294 mtx_unlock(&softc->ctl_lock); 1295 return; 1296 } 1297 mtx_lock(&lun->lun_lock); 1298 mtx_unlock(&softc->ctl_lock); 1299 if (lun->flags & CTL_LUN_DISABLED) { 1300 mtx_unlock(&lun->lun_lock); 1301 return; 1302 } 1303 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 1304 if ((lun->mode_pages.index[i].page_code & SMPH_PC_MASK) == 1305 msg->mode.page_code && 1306 lun->mode_pages.index[i].subpage == msg->mode.subpage) 1307 break; 1308 } 1309 if (i == CTL_NUM_MODE_PAGES) { 1310 mtx_unlock(&lun->lun_lock); 1311 return; 1312 } 1313 memcpy(lun->mode_pages.index[i].page_data, msg->mode.data, 1314 lun->mode_pages.index[i].page_len); 1315 initidx = ctl_get_initindex(&msg->hdr.nexus); 1316 if (initidx != -1) 1317 ctl_est_ua_all(lun, initidx, CTL_UA_MODE_CHANGE); 1318 mtx_unlock(&lun->lun_lock); 1319} 1320 1321/* 1322 * ISC (Inter Shelf Communication) event handler. Events from the HA 1323 * subsystem come in here. 1324 */ 1325static void 1326ctl_isc_event_handler(ctl_ha_channel channel, ctl_ha_event event, int param) 1327{ 1328 struct ctl_softc *softc = control_softc; 1329 union ctl_io *io; 1330 struct ctl_prio *presio; 1331 ctl_ha_status isc_status; 1332 1333 CTL_DEBUG_PRINT(("CTL: Isc Msg event %d\n", event)); 1334 if (event == CTL_HA_EVT_MSG_RECV) { 1335 union ctl_ha_msg *msg, msgbuf; 1336 1337 if (param > sizeof(msgbuf)) 1338 msg = malloc(param, M_CTL, M_WAITOK); 1339 else 1340 msg = &msgbuf; 1341 isc_status = ctl_ha_msg_recv(CTL_HA_CHAN_CTL, msg, param, 1342 M_WAITOK); 1343 if (isc_status != CTL_HA_STATUS_SUCCESS) { 1344 printf("%s: Error receiving message: %d\n", 1345 __func__, isc_status); 1346 if (msg != &msgbuf) 1347 free(msg, M_CTL); 1348 return; 1349 } 1350 1351 CTL_DEBUG_PRINT(("CTL: msg_type %d\n", msg->msg_type)); 1352 switch (msg->hdr.msg_type) { 1353 case CTL_MSG_SERIALIZE: 1354 io = ctl_alloc_io(softc->othersc_pool); 1355 ctl_zero_io(io); 1356 // populate ctsio from msg 1357 io->io_hdr.io_type = CTL_IO_SCSI; 1358 io->io_hdr.msg_type = CTL_MSG_SERIALIZE; 1359 io->io_hdr.original_sc = msg->hdr.original_sc; 1360 io->io_hdr.flags |= CTL_FLAG_FROM_OTHER_SC | 1361 CTL_FLAG_IO_ACTIVE; 1362 /* 1363 * If we're in serialization-only mode, we don't 1364 * want to go through full done processing. Thus 1365 * the COPY flag. 1366 * 1367 * XXX KDM add another flag that is more specific. 1368 */ 1369 if (softc->ha_mode != CTL_HA_MODE_XFER) 1370 io->io_hdr.flags |= CTL_FLAG_INT_COPY; 1371 io->io_hdr.nexus = msg->hdr.nexus; 1372#if 0 1373 printf("port %u, iid %u, lun %u\n", 1374 io->io_hdr.nexus.targ_port, 1375 io->io_hdr.nexus.initid, 1376 io->io_hdr.nexus.targ_lun); 1377#endif 1378 io->scsiio.tag_num = msg->scsi.tag_num; 1379 io->scsiio.tag_type = msg->scsi.tag_type; 1380#ifdef CTL_TIME_IO 1381 io->io_hdr.start_time = time_uptime; 1382 getbinuptime(&io->io_hdr.start_bt); 1383#endif /* CTL_TIME_IO */ 1384 io->scsiio.cdb_len = msg->scsi.cdb_len; 1385 memcpy(io->scsiio.cdb, msg->scsi.cdb, 1386 CTL_MAX_CDBLEN); 1387 if (softc->ha_mode == CTL_HA_MODE_XFER) { 1388 const struct ctl_cmd_entry *entry; 1389 1390 entry = ctl_get_cmd_entry(&io->scsiio, NULL); 1391 io->io_hdr.flags &= ~CTL_FLAG_DATA_MASK; 1392 io->io_hdr.flags |= 1393 entry->flags & CTL_FLAG_DATA_MASK; 1394 } 1395 ctl_enqueue_isc(io); 1396 break; 1397 1398 /* Performed on the Originating SC, XFER mode only */ 1399 case CTL_MSG_DATAMOVE: { 1400 struct ctl_sg_entry *sgl; 1401 int i, j; 1402 1403 io = msg->hdr.original_sc; 1404 if (io == NULL) { 1405 printf("%s: original_sc == NULL!\n", __func__); 1406 /* XXX KDM do something here */ 1407 break; 1408 } 1409 io->io_hdr.msg_type = CTL_MSG_DATAMOVE; 1410 io->io_hdr.flags |= CTL_FLAG_IO_ACTIVE; 1411 /* 1412 * Keep track of this, we need to send it back over 1413 * when the datamove is complete. 1414 */ 1415 io->io_hdr.serializing_sc = msg->hdr.serializing_sc; 1416 if (msg->hdr.status == CTL_SUCCESS) 1417 io->io_hdr.status = msg->hdr.status; 1418 1419 if (msg->dt.sg_sequence == 0) { 1420#ifdef CTL_TIME_IO 1421 getbinuptime(&io->io_hdr.dma_start_bt); 1422#endif 1423 i = msg->dt.kern_sg_entries + 1424 msg->dt.kern_data_len / 1425 CTL_HA_DATAMOVE_SEGMENT + 1; 1426 sgl = malloc(sizeof(*sgl) * i, M_CTL, 1427 M_WAITOK | M_ZERO); 1428 io->io_hdr.remote_sglist = sgl; 1429 io->io_hdr.local_sglist = 1430 &sgl[msg->dt.kern_sg_entries]; 1431 1432 io->scsiio.kern_data_ptr = (uint8_t *)sgl; 1433 1434 io->scsiio.kern_sg_entries = 1435 msg->dt.kern_sg_entries; 1436 io->scsiio.rem_sg_entries = 1437 msg->dt.kern_sg_entries; 1438 io->scsiio.kern_data_len = 1439 msg->dt.kern_data_len; 1440 io->scsiio.kern_total_len = 1441 msg->dt.kern_total_len; 1442 io->scsiio.kern_data_resid = 1443 msg->dt.kern_data_resid; 1444 io->scsiio.kern_rel_offset = 1445 msg->dt.kern_rel_offset; 1446 io->io_hdr.flags &= ~CTL_FLAG_BUS_ADDR; 1447 io->io_hdr.flags |= msg->dt.flags & 1448 CTL_FLAG_BUS_ADDR; 1449 } else 1450 sgl = (struct ctl_sg_entry *) 1451 io->scsiio.kern_data_ptr; 1452 1453 for (i = msg->dt.sent_sg_entries, j = 0; 1454 i < (msg->dt.sent_sg_entries + 1455 msg->dt.cur_sg_entries); i++, j++) { 1456 sgl[i].addr = msg->dt.sg_list[j].addr; 1457 sgl[i].len = msg->dt.sg_list[j].len; 1458 1459#if 0 1460 printf("%s: DATAMOVE: %p,%lu j=%d, i=%d\n", 1461 __func__, sgl[i].addr, sgl[i].len, j, i); 1462#endif 1463 } 1464 1465 /* 1466 * If this is the last piece of the I/O, we've got 1467 * the full S/G list. Queue processing in the thread. 1468 * Otherwise wait for the next piece. 1469 */ 1470 if (msg->dt.sg_last != 0) 1471 ctl_enqueue_isc(io); 1472 break; 1473 } 1474 /* Performed on the Serializing (primary) SC, XFER mode only */ 1475 case CTL_MSG_DATAMOVE_DONE: { 1476 if (msg->hdr.serializing_sc == NULL) { 1477 printf("%s: serializing_sc == NULL!\n", 1478 __func__); 1479 /* XXX KDM now what? */ 1480 break; 1481 } 1482 /* 1483 * We grab the sense information here in case 1484 * there was a failure, so we can return status 1485 * back to the initiator. 1486 */ 1487 io = msg->hdr.serializing_sc; 1488 io->io_hdr.msg_type = CTL_MSG_DATAMOVE_DONE; 1489 io->io_hdr.flags &= ~CTL_FLAG_DMA_INPROG; 1490 io->io_hdr.flags |= CTL_FLAG_IO_ACTIVE; 1491 io->io_hdr.port_status = msg->scsi.fetd_status; 1492 io->scsiio.residual = msg->scsi.residual; 1493 if (msg->hdr.status != CTL_STATUS_NONE) { 1494 io->io_hdr.status = msg->hdr.status; 1495 io->scsiio.scsi_status = msg->scsi.scsi_status; 1496 io->scsiio.sense_len = msg->scsi.sense_len; 1497 io->scsiio.sense_residual =msg->scsi.sense_residual; 1498 memcpy(&io->scsiio.sense_data, 1499 &msg->scsi.sense_data, 1500 msg->scsi.sense_len); 1501 if (msg->hdr.status == CTL_SUCCESS) 1502 io->io_hdr.flags |= CTL_FLAG_STATUS_SENT; 1503 } 1504 ctl_enqueue_isc(io); 1505 break; 1506 } 1507 1508 /* Preformed on Originating SC, SER_ONLY mode */ 1509 case CTL_MSG_R2R: 1510 io = msg->hdr.original_sc; 1511 if (io == NULL) { 1512 printf("%s: original_sc == NULL!\n", 1513 __func__); 1514 break; 1515 } 1516 io->io_hdr.flags |= CTL_FLAG_IO_ACTIVE; 1517 io->io_hdr.msg_type = CTL_MSG_R2R; 1518 io->io_hdr.serializing_sc = msg->hdr.serializing_sc; 1519 ctl_enqueue_isc(io); 1520 break; 1521 1522 /* 1523 * Performed on Serializing(i.e. primary SC) SC in SER_ONLY 1524 * mode. 1525 * Performed on the Originating (i.e. secondary) SC in XFER 1526 * mode 1527 */ 1528 case CTL_MSG_FINISH_IO: 1529 if (softc->ha_mode == CTL_HA_MODE_XFER) 1530 ctl_isc_handler_finish_xfer(softc, msg); 1531 else 1532 ctl_isc_handler_finish_ser_only(softc, msg); 1533 break; 1534 1535 /* Preformed on Originating SC */ 1536 case CTL_MSG_BAD_JUJU: 1537 io = msg->hdr.original_sc; 1538 if (io == NULL) { 1539 printf("%s: Bad JUJU!, original_sc is NULL!\n", 1540 __func__); 1541 break; 1542 } 1543 ctl_copy_sense_data(msg, io); 1544 /* 1545 * IO should have already been cleaned up on other 1546 * SC so clear this flag so we won't send a message 1547 * back to finish the IO there. 1548 */ 1549 io->io_hdr.flags &= ~CTL_FLAG_SENT_2OTHER_SC; 1550 io->io_hdr.flags |= CTL_FLAG_IO_ACTIVE; 1551 1552 /* io = msg->hdr.serializing_sc; */ 1553 io->io_hdr.msg_type = CTL_MSG_BAD_JUJU; 1554 ctl_enqueue_isc(io); 1555 break; 1556 1557 /* Handle resets sent from the other side */ 1558 case CTL_MSG_MANAGE_TASKS: { 1559 struct ctl_taskio *taskio; 1560 taskio = (struct ctl_taskio *)ctl_alloc_io( 1561 softc->othersc_pool); 1562 ctl_zero_io((union ctl_io *)taskio); 1563 taskio->io_hdr.io_type = CTL_IO_TASK; 1564 taskio->io_hdr.flags |= CTL_FLAG_FROM_OTHER_SC; 1565 taskio->io_hdr.nexus = msg->hdr.nexus; 1566 taskio->task_action = msg->task.task_action; 1567 taskio->tag_num = msg->task.tag_num; 1568 taskio->tag_type = msg->task.tag_type; 1569#ifdef CTL_TIME_IO 1570 taskio->io_hdr.start_time = time_uptime; 1571 getbinuptime(&taskio->io_hdr.start_bt); 1572#endif /* CTL_TIME_IO */ 1573 ctl_run_task((union ctl_io *)taskio); 1574 break; 1575 } 1576 /* Persistent Reserve action which needs attention */ 1577 case CTL_MSG_PERS_ACTION: 1578 presio = (struct ctl_prio *)ctl_alloc_io( 1579 softc->othersc_pool); 1580 ctl_zero_io((union ctl_io *)presio); 1581 presio->io_hdr.msg_type = CTL_MSG_PERS_ACTION; 1582 presio->io_hdr.flags |= CTL_FLAG_FROM_OTHER_SC; 1583 presio->io_hdr.nexus = msg->hdr.nexus; 1584 presio->pr_msg = msg->pr; 1585 ctl_enqueue_isc((union ctl_io *)presio); 1586 break; 1587 case CTL_MSG_UA: 1588 ctl_isc_ua(softc, msg, param); 1589 break; 1590 case CTL_MSG_PORT_SYNC: 1591 ctl_isc_port_sync(softc, msg, param); 1592 break; 1593 case CTL_MSG_LUN_SYNC: 1594 ctl_isc_lun_sync(softc, msg, param); 1595 break; 1596 case CTL_MSG_IID_SYNC: 1597 ctl_isc_iid_sync(softc, msg, param); 1598 break; 1599 case CTL_MSG_LOGIN: 1600 ctl_isc_login(softc, msg, param); 1601 break; 1602 case CTL_MSG_MODE_SYNC: 1603 ctl_isc_mode_sync(softc, msg, param); 1604 break; 1605 default: 1606 printf("Received HA message of unknown type %d\n", 1607 msg->hdr.msg_type); 1608 ctl_ha_msg_abort(CTL_HA_CHAN_CTL); 1609 break; 1610 } 1611 if (msg != &msgbuf) 1612 free(msg, M_CTL); 1613 } else if (event == CTL_HA_EVT_LINK_CHANGE) { 1614 printf("CTL: HA link status changed from %d to %d\n", 1615 softc->ha_link, param); 1616 if (param == softc->ha_link) 1617 return; 1618 if (softc->ha_link == CTL_HA_LINK_ONLINE) { 1619 softc->ha_link = param; 1620 ctl_isc_ha_link_down(softc); 1621 } else { 1622 softc->ha_link = param; 1623 if (softc->ha_link == CTL_HA_LINK_ONLINE) 1624 ctl_isc_ha_link_up(softc); 1625 } 1626 return; 1627 } else { 1628 printf("ctl_isc_event_handler: Unknown event %d\n", event); 1629 return; 1630 } 1631} 1632 1633static void 1634ctl_copy_sense_data(union ctl_ha_msg *src, union ctl_io *dest) 1635{ 1636 1637 memcpy(&dest->scsiio.sense_data, &src->scsi.sense_data, 1638 src->scsi.sense_len); 1639 dest->scsiio.scsi_status = src->scsi.scsi_status; 1640 dest->scsiio.sense_len = src->scsi.sense_len; 1641 dest->io_hdr.status = src->hdr.status; 1642} 1643 1644static void 1645ctl_copy_sense_data_back(union ctl_io *src, union ctl_ha_msg *dest) 1646{ 1647 1648 memcpy(&dest->scsi.sense_data, &src->scsiio.sense_data, 1649 src->scsiio.sense_len); 1650 dest->scsi.scsi_status = src->scsiio.scsi_status; 1651 dest->scsi.sense_len = src->scsiio.sense_len; 1652 dest->hdr.status = src->io_hdr.status; 1653} 1654 1655void 1656ctl_est_ua(struct ctl_lun *lun, uint32_t initidx, ctl_ua_type ua) 1657{ 1658 struct ctl_softc *softc = lun->ctl_softc; 1659 ctl_ua_type *pu; 1660 1661 if (initidx < softc->init_min || initidx >= softc->init_max) 1662 return; 1663 mtx_assert(&lun->lun_lock, MA_OWNED); 1664 pu = lun->pending_ua[initidx / CTL_MAX_INIT_PER_PORT]; 1665 if (pu == NULL) 1666 return; 1667 pu[initidx % CTL_MAX_INIT_PER_PORT] |= ua; 1668} 1669 1670void 1671ctl_est_ua_port(struct ctl_lun *lun, int port, uint32_t except, ctl_ua_type ua) 1672{ 1673 int i; 1674 1675 mtx_assert(&lun->lun_lock, MA_OWNED); 1676 if (lun->pending_ua[port] == NULL) 1677 return; 1678 for (i = 0; i < CTL_MAX_INIT_PER_PORT; i++) { 1679 if (port * CTL_MAX_INIT_PER_PORT + i == except) 1680 continue; 1681 lun->pending_ua[port][i] |= ua; 1682 } 1683} 1684 1685void 1686ctl_est_ua_all(struct ctl_lun *lun, uint32_t except, ctl_ua_type ua) 1687{ 1688 struct ctl_softc *softc = lun->ctl_softc; 1689 int i; 1690 1691 mtx_assert(&lun->lun_lock, MA_OWNED); 1692 for (i = softc->port_min; i < softc->port_max; i++) 1693 ctl_est_ua_port(lun, i, except, ua); 1694} 1695 1696void 1697ctl_clr_ua(struct ctl_lun *lun, uint32_t initidx, ctl_ua_type ua) 1698{ 1699 struct ctl_softc *softc = lun->ctl_softc; 1700 ctl_ua_type *pu; 1701 1702 if (initidx < softc->init_min || initidx >= softc->init_max) 1703 return; 1704 mtx_assert(&lun->lun_lock, MA_OWNED); 1705 pu = lun->pending_ua[initidx / CTL_MAX_INIT_PER_PORT]; 1706 if (pu == NULL) 1707 return; 1708 pu[initidx % CTL_MAX_INIT_PER_PORT] &= ~ua; 1709} 1710 1711void 1712ctl_clr_ua_all(struct ctl_lun *lun, uint32_t except, ctl_ua_type ua) 1713{ 1714 struct ctl_softc *softc = lun->ctl_softc; 1715 int i, j; 1716 1717 mtx_assert(&lun->lun_lock, MA_OWNED); 1718 for (i = softc->port_min; i < softc->port_max; i++) { 1719 if (lun->pending_ua[i] == NULL) 1720 continue; 1721 for (j = 0; j < CTL_MAX_INIT_PER_PORT; j++) { 1722 if (i * CTL_MAX_INIT_PER_PORT + j == except) 1723 continue; 1724 lun->pending_ua[i][j] &= ~ua; 1725 } 1726 } 1727} 1728 1729void 1730ctl_clr_ua_allluns(struct ctl_softc *ctl_softc, uint32_t initidx, 1731 ctl_ua_type ua_type) 1732{ 1733 struct ctl_lun *lun; 1734 1735 mtx_assert(&ctl_softc->ctl_lock, MA_OWNED); 1736 STAILQ_FOREACH(lun, &ctl_softc->lun_list, links) { 1737 mtx_lock(&lun->lun_lock); 1738 ctl_clr_ua(lun, initidx, ua_type); 1739 mtx_unlock(&lun->lun_lock); 1740 } 1741} 1742 1743static int 1744ctl_ha_role_sysctl(SYSCTL_HANDLER_ARGS) 1745{ 1746 struct ctl_softc *softc = (struct ctl_softc *)arg1; 1747 struct ctl_lun *lun; 1748 struct ctl_lun_req ireq; 1749 int error, value; 1750 1751 value = (softc->flags & CTL_FLAG_ACTIVE_SHELF) ? 0 : 1; 1752 error = sysctl_handle_int(oidp, &value, 0, req); 1753 if ((error != 0) || (req->newptr == NULL)) 1754 return (error); 1755 1756 mtx_lock(&softc->ctl_lock); 1757 if (value == 0) 1758 softc->flags |= CTL_FLAG_ACTIVE_SHELF; 1759 else 1760 softc->flags &= ~CTL_FLAG_ACTIVE_SHELF; 1761 STAILQ_FOREACH(lun, &softc->lun_list, links) { 1762 mtx_unlock(&softc->ctl_lock); 1763 bzero(&ireq, sizeof(ireq)); 1764 ireq.reqtype = CTL_LUNREQ_MODIFY; 1765 ireq.reqdata.modify.lun_id = lun->lun; 1766 lun->backend->ioctl(NULL, CTL_LUN_REQ, (caddr_t)&ireq, 0, 1767 curthread); 1768 if (ireq.status != CTL_LUN_OK) { 1769 printf("%s: CTL_LUNREQ_MODIFY returned %d '%s'\n", 1770 __func__, ireq.status, ireq.error_str); 1771 } 1772 mtx_lock(&softc->ctl_lock); 1773 } 1774 mtx_unlock(&softc->ctl_lock); 1775 return (0); 1776} 1777 1778static int 1779ctl_init(void) 1780{ 1781 struct make_dev_args args; 1782 struct ctl_softc *softc; 1783 void *other_pool; 1784 int i, error; 1785 1786 softc = control_softc = malloc(sizeof(*control_softc), M_DEVBUF, 1787 M_WAITOK | M_ZERO); 1788 1789 make_dev_args_init(&args); 1790 args.mda_devsw = &ctl_cdevsw; 1791 args.mda_uid = UID_ROOT; 1792 args.mda_gid = GID_OPERATOR; 1793 args.mda_mode = 0600; 1794 args.mda_si_drv1 = softc; 1795 error = make_dev_s(&args, &softc->dev, "cam/ctl"); 1796 if (error != 0) { 1797 free(control_softc, M_DEVBUF); 1798 return (error); 1799 } 1800 1801 sysctl_ctx_init(&softc->sysctl_ctx); 1802 softc->sysctl_tree = SYSCTL_ADD_NODE(&softc->sysctl_ctx, 1803 SYSCTL_STATIC_CHILDREN(_kern_cam), OID_AUTO, "ctl", 1804 CTLFLAG_RD, 0, "CAM Target Layer"); 1805 1806 if (softc->sysctl_tree == NULL) { 1807 printf("%s: unable to allocate sysctl tree\n", __func__); 1808 destroy_dev(softc->dev); 1809 free(control_softc, M_DEVBUF); 1810 control_softc = NULL; 1811 return (ENOMEM); 1812 } 1813 1814 mtx_init(&softc->ctl_lock, "CTL mutex", NULL, MTX_DEF); 1815 softc->io_zone = uma_zcreate("CTL IO", sizeof(union ctl_io), 1816 NULL, NULL, NULL, NULL, UMA_ALIGN_PTR, 0); 1817 softc->flags = 0; 1818 1819 SYSCTL_ADD_INT(&softc->sysctl_ctx, SYSCTL_CHILDREN(softc->sysctl_tree), 1820 OID_AUTO, "ha_mode", CTLFLAG_RDTUN, (int *)&softc->ha_mode, 0, 1821 "HA mode (0 - act/stby, 1 - serialize only, 2 - xfer)"); 1822 1823 /* 1824 * In Copan's HA scheme, the "master" and "slave" roles are 1825 * figured out through the slot the controller is in. Although it 1826 * is an active/active system, someone has to be in charge. 1827 */ 1828 SYSCTL_ADD_INT(&softc->sysctl_ctx, SYSCTL_CHILDREN(softc->sysctl_tree), 1829 OID_AUTO, "ha_id", CTLFLAG_RDTUN, &softc->ha_id, 0, 1830 "HA head ID (0 - no HA)"); 1831 if (softc->ha_id == 0 || softc->ha_id > NUM_HA_SHELVES) { 1832 softc->flags |= CTL_FLAG_ACTIVE_SHELF; 1833 softc->is_single = 1; 1834 softc->port_cnt = CTL_MAX_PORTS; 1835 softc->port_min = 0; 1836 } else { 1837 softc->port_cnt = CTL_MAX_PORTS / NUM_HA_SHELVES; 1838 softc->port_min = (softc->ha_id - 1) * softc->port_cnt; 1839 } 1840 softc->port_max = softc->port_min + softc->port_cnt; 1841 softc->init_min = softc->port_min * CTL_MAX_INIT_PER_PORT; 1842 softc->init_max = softc->port_max * CTL_MAX_INIT_PER_PORT; 1843 1844 SYSCTL_ADD_INT(&softc->sysctl_ctx, SYSCTL_CHILDREN(softc->sysctl_tree), 1845 OID_AUTO, "ha_link", CTLFLAG_RD, (int *)&softc->ha_link, 0, 1846 "HA link state (0 - offline, 1 - unknown, 2 - online)"); 1847 1848 STAILQ_INIT(&softc->lun_list); 1849 STAILQ_INIT(&softc->pending_lun_queue); 1850 STAILQ_INIT(&softc->fe_list); 1851 STAILQ_INIT(&softc->port_list); 1852 STAILQ_INIT(&softc->be_list); 1853 ctl_tpc_init(softc); 1854 1855 if (ctl_pool_create(softc, "othersc", CTL_POOL_ENTRIES_OTHER_SC, 1856 &other_pool) != 0) 1857 { 1858 printf("ctl: can't allocate %d entry other SC pool, " 1859 "exiting\n", CTL_POOL_ENTRIES_OTHER_SC); 1860 return (ENOMEM); 1861 } 1862 softc->othersc_pool = other_pool; 1863 1864 if (worker_threads <= 0) 1865 worker_threads = max(1, mp_ncpus / 4); 1866 if (worker_threads > CTL_MAX_THREADS) 1867 worker_threads = CTL_MAX_THREADS; 1868 1869 for (i = 0; i < worker_threads; i++) { 1870 struct ctl_thread *thr = &softc->threads[i]; 1871 1872 mtx_init(&thr->queue_lock, "CTL queue mutex", NULL, MTX_DEF); 1873 thr->ctl_softc = softc; 1874 STAILQ_INIT(&thr->incoming_queue); 1875 STAILQ_INIT(&thr->rtr_queue); 1876 STAILQ_INIT(&thr->done_queue); 1877 STAILQ_INIT(&thr->isc_queue); 1878 1879 error = kproc_kthread_add(ctl_work_thread, thr, 1880 &softc->ctl_proc, &thr->thread, 0, 0, "ctl", "work%d", i); 1881 if (error != 0) { 1882 printf("error creating CTL work thread!\n"); 1883 ctl_pool_free(other_pool); 1884 return (error); 1885 } 1886 } 1887 error = kproc_kthread_add(ctl_lun_thread, softc, 1888 &softc->ctl_proc, NULL, 0, 0, "ctl", "lun"); 1889 if (error != 0) { 1890 printf("error creating CTL lun thread!\n"); 1891 ctl_pool_free(other_pool); 1892 return (error); 1893 } 1894 error = kproc_kthread_add(ctl_thresh_thread, softc, 1895 &softc->ctl_proc, NULL, 0, 0, "ctl", "thresh"); 1896 if (error != 0) { 1897 printf("error creating CTL threshold thread!\n"); 1898 ctl_pool_free(other_pool); 1899 return (error); 1900 } 1901 1902 SYSCTL_ADD_PROC(&softc->sysctl_ctx,SYSCTL_CHILDREN(softc->sysctl_tree), 1903 OID_AUTO, "ha_role", CTLTYPE_INT | CTLFLAG_RWTUN, 1904 softc, 0, ctl_ha_role_sysctl, "I", "HA role for this head"); 1905 1906 if (softc->is_single == 0) { 1907 ctl_frontend_register(&ha_frontend); 1908 if (ctl_ha_msg_init(softc) != CTL_HA_STATUS_SUCCESS) { 1909 printf("ctl_init: ctl_ha_msg_init failed.\n"); 1910 softc->is_single = 1; 1911 } else 1912 if (ctl_ha_msg_register(CTL_HA_CHAN_CTL, ctl_isc_event_handler) 1913 != CTL_HA_STATUS_SUCCESS) { 1914 printf("ctl_init: ctl_ha_msg_register failed.\n"); 1915 softc->is_single = 1; 1916 } 1917 } 1918 return (0); 1919} 1920 1921void 1922ctl_shutdown(void) 1923{ 1924 struct ctl_softc *softc = control_softc; 1925 struct ctl_lun *lun, *next_lun; 1926 1927 if (softc->is_single == 0) { 1928 ctl_ha_msg_shutdown(softc); 1929 if (ctl_ha_msg_deregister(CTL_HA_CHAN_CTL) 1930 != CTL_HA_STATUS_SUCCESS) 1931 printf("%s: ctl_ha_msg_deregister failed.\n", __func__); 1932 if (ctl_ha_msg_destroy(softc) != CTL_HA_STATUS_SUCCESS) 1933 printf("%s: ctl_ha_msg_destroy failed.\n", __func__); 1934 ctl_frontend_deregister(&ha_frontend); 1935 } 1936 1937 mtx_lock(&softc->ctl_lock); 1938 1939 STAILQ_FOREACH_SAFE(lun, &softc->lun_list, links, next_lun) 1940 ctl_free_lun(lun); 1941 1942 mtx_unlock(&softc->ctl_lock); 1943 1944#if 0 1945 ctl_shutdown_thread(softc->work_thread); 1946 mtx_destroy(&softc->queue_lock); 1947#endif 1948 1949 ctl_tpc_shutdown(softc); 1950 uma_zdestroy(softc->io_zone); 1951 mtx_destroy(&softc->ctl_lock); 1952 1953 destroy_dev(softc->dev); 1954 1955 sysctl_ctx_free(&softc->sysctl_ctx); 1956 1957 free(control_softc, M_DEVBUF); 1958 control_softc = NULL; 1959} 1960 1961static int 1962ctl_module_event_handler(module_t mod, int what, void *arg) 1963{ 1964 1965 switch (what) { 1966 case MOD_LOAD: 1967 return (ctl_init()); 1968 case MOD_UNLOAD: 1969 return (EBUSY); 1970 default: 1971 return (EOPNOTSUPP); 1972 } 1973} 1974 1975/* 1976 * XXX KDM should we do some access checks here? Bump a reference count to 1977 * prevent a CTL module from being unloaded while someone has it open? 1978 */ 1979static int 1980ctl_open(struct cdev *dev, int flags, int fmt, struct thread *td) 1981{ 1982 return (0); 1983} 1984 1985static int 1986ctl_close(struct cdev *dev, int flags, int fmt, struct thread *td) 1987{ 1988 return (0); 1989} 1990 1991/* 1992 * Remove an initiator by port number and initiator ID. 1993 * Returns 0 for success, -1 for failure. 1994 */ 1995int 1996ctl_remove_initiator(struct ctl_port *port, int iid) 1997{ 1998 struct ctl_softc *softc = port->ctl_softc; 1999 2000 mtx_assert(&softc->ctl_lock, MA_NOTOWNED); 2001 2002 if (iid > CTL_MAX_INIT_PER_PORT) { 2003 printf("%s: initiator ID %u > maximun %u!\n", 2004 __func__, iid, CTL_MAX_INIT_PER_PORT); 2005 return (-1); 2006 } 2007 2008 mtx_lock(&softc->ctl_lock); 2009 port->wwpn_iid[iid].in_use--; 2010 port->wwpn_iid[iid].last_use = time_uptime; 2011 mtx_unlock(&softc->ctl_lock); 2012 ctl_isc_announce_iid(port, iid); 2013 2014 return (0); 2015} 2016 2017/* 2018 * Add an initiator to the initiator map. 2019 * Returns iid for success, < 0 for failure. 2020 */ 2021int 2022ctl_add_initiator(struct ctl_port *port, int iid, uint64_t wwpn, char *name) 2023{ 2024 struct ctl_softc *softc = port->ctl_softc; 2025 time_t best_time; 2026 int i, best; 2027 2028 mtx_assert(&softc->ctl_lock, MA_NOTOWNED); 2029 2030 if (iid >= CTL_MAX_INIT_PER_PORT) { 2031 printf("%s: WWPN %#jx initiator ID %u > maximum %u!\n", 2032 __func__, wwpn, iid, CTL_MAX_INIT_PER_PORT); 2033 free(name, M_CTL); 2034 return (-1); 2035 } 2036 2037 mtx_lock(&softc->ctl_lock); 2038 2039 if (iid < 0 && (wwpn != 0 || name != NULL)) { 2040 for (i = 0; i < CTL_MAX_INIT_PER_PORT; i++) { 2041 if (wwpn != 0 && wwpn == port->wwpn_iid[i].wwpn) { 2042 iid = i; 2043 break; 2044 } 2045 if (name != NULL && port->wwpn_iid[i].name != NULL && 2046 strcmp(name, port->wwpn_iid[i].name) == 0) { 2047 iid = i; 2048 break; 2049 } 2050 } 2051 } 2052 2053 if (iid < 0) { 2054 for (i = 0; i < CTL_MAX_INIT_PER_PORT; i++) { 2055 if (port->wwpn_iid[i].in_use == 0 && 2056 port->wwpn_iid[i].wwpn == 0 && 2057 port->wwpn_iid[i].name == NULL) { 2058 iid = i; 2059 break; 2060 } 2061 } 2062 } 2063 2064 if (iid < 0) { 2065 best = -1; 2066 best_time = INT32_MAX; 2067 for (i = 0; i < CTL_MAX_INIT_PER_PORT; i++) { 2068 if (port->wwpn_iid[i].in_use == 0) { 2069 if (port->wwpn_iid[i].last_use < best_time) { 2070 best = i; 2071 best_time = port->wwpn_iid[i].last_use; 2072 } 2073 } 2074 } 2075 iid = best; 2076 } 2077 2078 if (iid < 0) { 2079 mtx_unlock(&softc->ctl_lock); 2080 free(name, M_CTL); 2081 return (-2); 2082 } 2083 2084 if (port->wwpn_iid[iid].in_use > 0 && (wwpn != 0 || name != NULL)) { 2085 /* 2086 * This is not an error yet. 2087 */ 2088 if (wwpn != 0 && wwpn == port->wwpn_iid[iid].wwpn) { 2089#if 0 2090 printf("%s: port %d iid %u WWPN %#jx arrived" 2091 " again\n", __func__, port->targ_port, 2092 iid, (uintmax_t)wwpn); 2093#endif 2094 goto take; 2095 } 2096 if (name != NULL && port->wwpn_iid[iid].name != NULL && 2097 strcmp(name, port->wwpn_iid[iid].name) == 0) { 2098#if 0 2099 printf("%s: port %d iid %u name '%s' arrived" 2100 " again\n", __func__, port->targ_port, 2101 iid, name); 2102#endif 2103 goto take; 2104 } 2105 2106 /* 2107 * This is an error, but what do we do about it? The 2108 * driver is telling us we have a new WWPN for this 2109 * initiator ID, so we pretty much need to use it. 2110 */ 2111 printf("%s: port %d iid %u WWPN %#jx '%s' arrived," 2112 " but WWPN %#jx '%s' is still at that address\n", 2113 __func__, port->targ_port, iid, wwpn, name, 2114 (uintmax_t)port->wwpn_iid[iid].wwpn, 2115 port->wwpn_iid[iid].name); 2116 2117 /* 2118 * XXX KDM clear have_ca and ua_pending on each LUN for 2119 * this initiator. 2120 */ 2121 } 2122take: 2123 free(port->wwpn_iid[iid].name, M_CTL); 2124 port->wwpn_iid[iid].name = name; 2125 port->wwpn_iid[iid].wwpn = wwpn; 2126 port->wwpn_iid[iid].in_use++; 2127 mtx_unlock(&softc->ctl_lock); 2128 ctl_isc_announce_iid(port, iid); 2129 2130 return (iid); 2131} 2132 2133static int 2134ctl_create_iid(struct ctl_port *port, int iid, uint8_t *buf) 2135{ 2136 int len; 2137 2138 switch (port->port_type) { 2139 case CTL_PORT_FC: 2140 { 2141 struct scsi_transportid_fcp *id = 2142 (struct scsi_transportid_fcp *)buf; 2143 if (port->wwpn_iid[iid].wwpn == 0) 2144 return (0); 2145 memset(id, 0, sizeof(*id)); 2146 id->format_protocol = SCSI_PROTO_FC; 2147 scsi_u64to8b(port->wwpn_iid[iid].wwpn, id->n_port_name); 2148 return (sizeof(*id)); 2149 } 2150 case CTL_PORT_ISCSI: 2151 { 2152 struct scsi_transportid_iscsi_port *id = 2153 (struct scsi_transportid_iscsi_port *)buf; 2154 if (port->wwpn_iid[iid].name == NULL) 2155 return (0); 2156 memset(id, 0, 256); 2157 id->format_protocol = SCSI_TRN_ISCSI_FORMAT_PORT | 2158 SCSI_PROTO_ISCSI; 2159 len = strlcpy(id->iscsi_name, port->wwpn_iid[iid].name, 252) + 1; 2160 len = roundup2(min(len, 252), 4); 2161 scsi_ulto2b(len, id->additional_length); 2162 return (sizeof(*id) + len); 2163 } 2164 case CTL_PORT_SAS: 2165 { 2166 struct scsi_transportid_sas *id = 2167 (struct scsi_transportid_sas *)buf; 2168 if (port->wwpn_iid[iid].wwpn == 0) 2169 return (0); 2170 memset(id, 0, sizeof(*id)); 2171 id->format_protocol = SCSI_PROTO_SAS; 2172 scsi_u64to8b(port->wwpn_iid[iid].wwpn, id->sas_address); 2173 return (sizeof(*id)); 2174 } 2175 default: 2176 { 2177 struct scsi_transportid_spi *id = 2178 (struct scsi_transportid_spi *)buf; 2179 memset(id, 0, sizeof(*id)); 2180 id->format_protocol = SCSI_PROTO_SPI; 2181 scsi_ulto2b(iid, id->scsi_addr); 2182 scsi_ulto2b(port->targ_port, id->rel_trgt_port_id); 2183 return (sizeof(*id)); 2184 } 2185 } 2186} 2187 2188/* 2189 * Serialize a command that went down the "wrong" side, and so was sent to 2190 * this controller for execution. The logic is a little different than the 2191 * standard case in ctl_scsiio_precheck(). Errors in this case need to get 2192 * sent back to the other side, but in the success case, we execute the 2193 * command on this side (XFER mode) or tell the other side to execute it 2194 * (SER_ONLY mode). 2195 */ 2196static int 2197ctl_serialize_other_sc_cmd(struct ctl_scsiio *ctsio) 2198{ 2199 struct ctl_softc *softc = control_softc; 2200 union ctl_ha_msg msg_info; 2201 struct ctl_port *port; 2202 struct ctl_lun *lun; 2203 const struct ctl_cmd_entry *entry; 2204 int retval = 0; 2205 uint32_t targ_lun; 2206 2207 targ_lun = ctsio->io_hdr.nexus.targ_mapped_lun; 2208 mtx_lock(&softc->ctl_lock); 2209 2210 /* Make sure that we know about this port. */ 2211 port = ctl_io_port(&ctsio->io_hdr); 2212 if (port == NULL || (port->status & CTL_PORT_STATUS_ONLINE) == 0) { 2213 ctl_set_internal_failure(ctsio, /*sks_valid*/ 0, 2214 /*retry_count*/ 1); 2215 goto badjuju; 2216 } 2217 2218 /* Make sure that we know about this LUN. */ 2219 if ((targ_lun < CTL_MAX_LUNS) && 2220 ((lun = softc->ctl_luns[targ_lun]) != NULL)) { 2221 mtx_lock(&lun->lun_lock); 2222 mtx_unlock(&softc->ctl_lock); 2223 /* 2224 * If the LUN is invalid, pretend that it doesn't exist. 2225 * It will go away as soon as all pending I/O has been 2226 * completed. 2227 */ 2228 if (lun->flags & CTL_LUN_DISABLED) { 2229 mtx_unlock(&lun->lun_lock); 2230 lun = NULL; 2231 } 2232 } else { 2233 mtx_unlock(&softc->ctl_lock); 2234 lun = NULL; 2235 } 2236 if (lun == NULL) { 2237 /* 2238 * The other node would not send this request to us unless 2239 * received announce that we are primary node for this LUN. 2240 * If this LUN does not exist now, it is probably result of 2241 * a race, so respond to initiator in the most opaque way. 2242 */ 2243 ctl_set_busy(ctsio); 2244 goto badjuju; 2245 } 2246 2247 entry = ctl_get_cmd_entry(ctsio, NULL); 2248 if (ctl_scsiio_lun_check(lun, entry, ctsio) != 0) { 2249 mtx_unlock(&lun->lun_lock); 2250 goto badjuju; 2251 } 2252 2253 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr = lun; 2254 ctsio->io_hdr.ctl_private[CTL_PRIV_BACKEND_LUN].ptr = lun->be_lun; 2255 2256 /* 2257 * Every I/O goes into the OOA queue for a 2258 * particular LUN, and stays there until completion. 2259 */ 2260#ifdef CTL_TIME_IO 2261 if (TAILQ_EMPTY(&lun->ooa_queue)) 2262 lun->idle_time += getsbinuptime() - lun->last_busy; 2263#endif 2264 TAILQ_INSERT_TAIL(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 2265 2266 switch (ctl_check_ooa(lun, (union ctl_io *)ctsio, 2267 (union ctl_io *)TAILQ_PREV(&ctsio->io_hdr, ctl_ooaq, 2268 ooa_links))) { 2269 case CTL_ACTION_BLOCK: 2270 ctsio->io_hdr.flags |= CTL_FLAG_BLOCKED; 2271 TAILQ_INSERT_TAIL(&lun->blocked_queue, &ctsio->io_hdr, 2272 blocked_links); 2273 mtx_unlock(&lun->lun_lock); 2274 break; 2275 case CTL_ACTION_PASS: 2276 case CTL_ACTION_SKIP: 2277 if (softc->ha_mode == CTL_HA_MODE_XFER) { 2278 ctsio->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 2279 ctl_enqueue_rtr((union ctl_io *)ctsio); 2280 mtx_unlock(&lun->lun_lock); 2281 } else { 2282 ctsio->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 2283 mtx_unlock(&lun->lun_lock); 2284 2285 /* send msg back to other side */ 2286 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 2287 msg_info.hdr.serializing_sc = (union ctl_io *)ctsio; 2288 msg_info.hdr.msg_type = CTL_MSG_R2R; 2289 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 2290 sizeof(msg_info.hdr), M_WAITOK); 2291 } 2292 break; 2293 case CTL_ACTION_OVERLAP: 2294 TAILQ_REMOVE(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 2295 mtx_unlock(&lun->lun_lock); 2296 ctl_set_overlapped_cmd(ctsio); 2297 goto badjuju; 2298 case CTL_ACTION_OVERLAP_TAG: 2299 TAILQ_REMOVE(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 2300 mtx_unlock(&lun->lun_lock); 2301 ctl_set_overlapped_tag(ctsio, ctsio->tag_num); 2302 goto badjuju; 2303 case CTL_ACTION_ERROR: 2304 default: 2305 TAILQ_REMOVE(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 2306 mtx_unlock(&lun->lun_lock); 2307 2308 ctl_set_internal_failure(ctsio, /*sks_valid*/ 0, 2309 /*retry_count*/ 0); 2310badjuju: 2311 ctl_copy_sense_data_back((union ctl_io *)ctsio, &msg_info); 2312 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 2313 msg_info.hdr.serializing_sc = NULL; 2314 msg_info.hdr.msg_type = CTL_MSG_BAD_JUJU; 2315 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 2316 sizeof(msg_info.scsi), M_WAITOK); 2317 retval = 1; 2318 break; 2319 } 2320 return (retval); 2321} 2322 2323/* 2324 * Returns 0 for success, errno for failure. 2325 */ 2326static void 2327ctl_ioctl_fill_ooa(struct ctl_lun *lun, uint32_t *cur_fill_num, 2328 struct ctl_ooa *ooa_hdr, struct ctl_ooa_entry *kern_entries) 2329{ 2330 union ctl_io *io; 2331 2332 mtx_lock(&lun->lun_lock); 2333 for (io = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); (io != NULL); 2334 (*cur_fill_num)++, io = (union ctl_io *)TAILQ_NEXT(&io->io_hdr, 2335 ooa_links)) { 2336 struct ctl_ooa_entry *entry; 2337 2338 /* 2339 * If we've got more than we can fit, just count the 2340 * remaining entries. 2341 */ 2342 if (*cur_fill_num >= ooa_hdr->alloc_num) 2343 continue; 2344 2345 entry = &kern_entries[*cur_fill_num]; 2346 2347 entry->tag_num = io->scsiio.tag_num; 2348 entry->lun_num = lun->lun; 2349#ifdef CTL_TIME_IO 2350 entry->start_bt = io->io_hdr.start_bt; 2351#endif 2352 bcopy(io->scsiio.cdb, entry->cdb, io->scsiio.cdb_len); 2353 entry->cdb_len = io->scsiio.cdb_len; 2354 if (io->io_hdr.flags & CTL_FLAG_BLOCKED) 2355 entry->cmd_flags |= CTL_OOACMD_FLAG_BLOCKED; 2356 2357 if (io->io_hdr.flags & CTL_FLAG_DMA_INPROG) 2358 entry->cmd_flags |= CTL_OOACMD_FLAG_DMA; 2359 2360 if (io->io_hdr.flags & CTL_FLAG_ABORT) 2361 entry->cmd_flags |= CTL_OOACMD_FLAG_ABORT; 2362 2363 if (io->io_hdr.flags & CTL_FLAG_IS_WAS_ON_RTR) 2364 entry->cmd_flags |= CTL_OOACMD_FLAG_RTR; 2365 2366 if (io->io_hdr.flags & CTL_FLAG_DMA_QUEUED) 2367 entry->cmd_flags |= CTL_OOACMD_FLAG_DMA_QUEUED; 2368 } 2369 mtx_unlock(&lun->lun_lock); 2370} 2371 2372static void * 2373ctl_copyin_alloc(void *user_addr, unsigned int len, char *error_str, 2374 size_t error_str_len) 2375{ 2376 void *kptr; 2377 2378 kptr = malloc(len, M_CTL, M_WAITOK | M_ZERO); 2379 2380 if (copyin(user_addr, kptr, len) != 0) { 2381 snprintf(error_str, error_str_len, "Error copying %d bytes " 2382 "from user address %p to kernel address %p", len, 2383 user_addr, kptr); 2384 free(kptr, M_CTL); 2385 return (NULL); 2386 } 2387 2388 return (kptr); 2389} 2390 2391static void 2392ctl_free_args(int num_args, struct ctl_be_arg *args) 2393{ 2394 int i; 2395 2396 if (args == NULL) 2397 return; 2398 2399 for (i = 0; i < num_args; i++) { 2400 free(args[i].kname, M_CTL); 2401 free(args[i].kvalue, M_CTL); 2402 } 2403 2404 free(args, M_CTL); 2405} 2406 2407static struct ctl_be_arg * 2408ctl_copyin_args(int num_args, struct ctl_be_arg *uargs, 2409 char *error_str, size_t error_str_len) 2410{ 2411 struct ctl_be_arg *args; 2412 int i; 2413 2414 args = ctl_copyin_alloc(uargs, num_args * sizeof(*args), 2415 error_str, error_str_len); 2416 2417 if (args == NULL) 2418 goto bailout; 2419 2420 for (i = 0; i < num_args; i++) { 2421 args[i].kname = NULL; 2422 args[i].kvalue = NULL; 2423 } 2424 2425 for (i = 0; i < num_args; i++) { 2426 uint8_t *tmpptr; 2427 2428 if (args[i].namelen == 0) { 2429 snprintf(error_str, error_str_len, "Argument %d " 2430 "name length is zero", i); 2431 goto bailout; 2432 } 2433 2434 args[i].kname = ctl_copyin_alloc(args[i].name, 2435 args[i].namelen, error_str, error_str_len); 2436 if (args[i].kname == NULL) 2437 goto bailout; 2438 2439 if (args[i].kname[args[i].namelen - 1] != '\0') { 2440 snprintf(error_str, error_str_len, "Argument %d " 2441 "name is not NUL-terminated", i); 2442 goto bailout; 2443 } 2444 2445 if (args[i].flags & CTL_BEARG_RD) { 2446 if (args[i].vallen == 0) { 2447 snprintf(error_str, error_str_len, "Argument %d " 2448 "value length is zero", i); 2449 goto bailout; 2450 } 2451 2452 tmpptr = ctl_copyin_alloc(args[i].value, 2453 args[i].vallen, error_str, error_str_len); 2454 if (tmpptr == NULL) 2455 goto bailout; 2456 2457 if ((args[i].flags & CTL_BEARG_ASCII) 2458 && (tmpptr[args[i].vallen - 1] != '\0')) { 2459 snprintf(error_str, error_str_len, "Argument " 2460 "%d value is not NUL-terminated", i); 2461 free(tmpptr, M_CTL); 2462 goto bailout; 2463 } 2464 args[i].kvalue = tmpptr; 2465 } else { 2466 args[i].kvalue = malloc(args[i].vallen, 2467 M_CTL, M_WAITOK | M_ZERO); 2468 } 2469 } 2470 2471 return (args); 2472bailout: 2473 2474 ctl_free_args(num_args, args); 2475 2476 return (NULL); 2477} 2478 2479static void 2480ctl_copyout_args(int num_args, struct ctl_be_arg *args) 2481{ 2482 int i; 2483 2484 for (i = 0; i < num_args; i++) { 2485 if (args[i].flags & CTL_BEARG_WR) 2486 copyout(args[i].kvalue, args[i].value, args[i].vallen); 2487 } 2488} 2489 2490/* 2491 * Escape characters that are illegal or not recommended in XML. 2492 */ 2493int 2494ctl_sbuf_printf_esc(struct sbuf *sb, char *str, int size) 2495{ 2496 char *end = str + size; 2497 int retval; 2498 2499 retval = 0; 2500 2501 for (; *str && str < end; str++) { 2502 switch (*str) { 2503 case '&': 2504 retval = sbuf_printf(sb, "&"); 2505 break; 2506 case '>': 2507 retval = sbuf_printf(sb, ">"); 2508 break; 2509 case '<': 2510 retval = sbuf_printf(sb, "<"); 2511 break; 2512 default: 2513 retval = sbuf_putc(sb, *str); 2514 break; 2515 } 2516 2517 if (retval != 0) 2518 break; 2519 2520 } 2521 2522 return (retval); 2523} 2524 2525static void 2526ctl_id_sbuf(struct ctl_devid *id, struct sbuf *sb) 2527{ 2528 struct scsi_vpd_id_descriptor *desc; 2529 int i; 2530 2531 if (id == NULL || id->len < 4) 2532 return; 2533 desc = (struct scsi_vpd_id_descriptor *)id->data; 2534 switch (desc->id_type & SVPD_ID_TYPE_MASK) { 2535 case SVPD_ID_TYPE_T10: 2536 sbuf_printf(sb, "t10."); 2537 break; 2538 case SVPD_ID_TYPE_EUI64: 2539 sbuf_printf(sb, "eui."); 2540 break; 2541 case SVPD_ID_TYPE_NAA: 2542 sbuf_printf(sb, "naa."); 2543 break; 2544 case SVPD_ID_TYPE_SCSI_NAME: 2545 break; 2546 } 2547 switch (desc->proto_codeset & SVPD_ID_CODESET_MASK) { 2548 case SVPD_ID_CODESET_BINARY: 2549 for (i = 0; i < desc->length; i++) 2550 sbuf_printf(sb, "%02x", desc->identifier[i]); 2551 break; 2552 case SVPD_ID_CODESET_ASCII: 2553 sbuf_printf(sb, "%.*s", (int)desc->length, 2554 (char *)desc->identifier); 2555 break; 2556 case SVPD_ID_CODESET_UTF8: 2557 sbuf_printf(sb, "%s", (char *)desc->identifier); 2558 break; 2559 } 2560} 2561 2562static int 2563ctl_ioctl(struct cdev *dev, u_long cmd, caddr_t addr, int flag, 2564 struct thread *td) 2565{ 2566 struct ctl_softc *softc = dev->si_drv1; 2567 struct ctl_lun *lun; 2568 int retval; 2569 2570 retval = 0; 2571 2572 switch (cmd) { 2573 case CTL_IO: 2574 retval = ctl_ioctl_io(dev, cmd, addr, flag, td); 2575 break; 2576 case CTL_ENABLE_PORT: 2577 case CTL_DISABLE_PORT: 2578 case CTL_SET_PORT_WWNS: { 2579 struct ctl_port *port; 2580 struct ctl_port_entry *entry; 2581 2582 entry = (struct ctl_port_entry *)addr; 2583 2584 mtx_lock(&softc->ctl_lock); 2585 STAILQ_FOREACH(port, &softc->port_list, links) { 2586 int action, done; 2587 2588 if (port->targ_port < softc->port_min || 2589 port->targ_port >= softc->port_max) 2590 continue; 2591 2592 action = 0; 2593 done = 0; 2594 if ((entry->port_type == CTL_PORT_NONE) 2595 && (entry->targ_port == port->targ_port)) { 2596 /* 2597 * If the user only wants to enable or 2598 * disable or set WWNs on a specific port, 2599 * do the operation and we're done. 2600 */ 2601 action = 1; 2602 done = 1; 2603 } else if (entry->port_type & port->port_type) { 2604 /* 2605 * Compare the user's type mask with the 2606 * particular frontend type to see if we 2607 * have a match. 2608 */ 2609 action = 1; 2610 done = 0; 2611 2612 /* 2613 * Make sure the user isn't trying to set 2614 * WWNs on multiple ports at the same time. 2615 */ 2616 if (cmd == CTL_SET_PORT_WWNS) { 2617 printf("%s: Can't set WWNs on " 2618 "multiple ports\n", __func__); 2619 retval = EINVAL; 2620 break; 2621 } 2622 } 2623 if (action == 0) 2624 continue; 2625 2626 /* 2627 * XXX KDM we have to drop the lock here, because 2628 * the online/offline operations can potentially 2629 * block. We need to reference count the frontends 2630 * so they can't go away, 2631 */ 2632 if (cmd == CTL_ENABLE_PORT) { 2633 mtx_unlock(&softc->ctl_lock); 2634 ctl_port_online(port); 2635 mtx_lock(&softc->ctl_lock); 2636 } else if (cmd == CTL_DISABLE_PORT) { 2637 mtx_unlock(&softc->ctl_lock); 2638 ctl_port_offline(port); 2639 mtx_lock(&softc->ctl_lock); 2640 } else if (cmd == CTL_SET_PORT_WWNS) { 2641 ctl_port_set_wwns(port, 2642 (entry->flags & CTL_PORT_WWNN_VALID) ? 2643 1 : 0, entry->wwnn, 2644 (entry->flags & CTL_PORT_WWPN_VALID) ? 2645 1 : 0, entry->wwpn); 2646 } 2647 if (done != 0) 2648 break; 2649 } 2650 mtx_unlock(&softc->ctl_lock); 2651 break; 2652 } 2653 case CTL_GET_OOA: { 2654 struct ctl_ooa *ooa_hdr; 2655 struct ctl_ooa_entry *entries; 2656 uint32_t cur_fill_num; 2657 2658 ooa_hdr = (struct ctl_ooa *)addr; 2659 2660 if ((ooa_hdr->alloc_len == 0) 2661 || (ooa_hdr->alloc_num == 0)) { 2662 printf("%s: CTL_GET_OOA: alloc len %u and alloc num %u " 2663 "must be non-zero\n", __func__, 2664 ooa_hdr->alloc_len, ooa_hdr->alloc_num); 2665 retval = EINVAL; 2666 break; 2667 } 2668 2669 if (ooa_hdr->alloc_len != (ooa_hdr->alloc_num * 2670 sizeof(struct ctl_ooa_entry))) { 2671 printf("%s: CTL_GET_OOA: alloc len %u must be alloc " 2672 "num %d * sizeof(struct ctl_ooa_entry) %zd\n", 2673 __func__, ooa_hdr->alloc_len, 2674 ooa_hdr->alloc_num,sizeof(struct ctl_ooa_entry)); 2675 retval = EINVAL; 2676 break; 2677 } 2678 2679 entries = malloc(ooa_hdr->alloc_len, M_CTL, M_WAITOK | M_ZERO); 2680 if (entries == NULL) { 2681 printf("%s: could not allocate %d bytes for OOA " 2682 "dump\n", __func__, ooa_hdr->alloc_len); 2683 retval = ENOMEM; 2684 break; 2685 } 2686 2687 mtx_lock(&softc->ctl_lock); 2688 if (((ooa_hdr->flags & CTL_OOA_FLAG_ALL_LUNS) == 0) 2689 && ((ooa_hdr->lun_num >= CTL_MAX_LUNS) 2690 || (softc->ctl_luns[ooa_hdr->lun_num] == NULL))) { 2691 mtx_unlock(&softc->ctl_lock); 2692 free(entries, M_CTL); 2693 printf("%s: CTL_GET_OOA: invalid LUN %ju\n", 2694 __func__, (uintmax_t)ooa_hdr->lun_num); 2695 retval = EINVAL; 2696 break; 2697 } 2698 2699 cur_fill_num = 0; 2700 2701 if (ooa_hdr->flags & CTL_OOA_FLAG_ALL_LUNS) { 2702 STAILQ_FOREACH(lun, &softc->lun_list, links) { 2703 ctl_ioctl_fill_ooa(lun, &cur_fill_num, 2704 ooa_hdr, entries); 2705 } 2706 } else { 2707 lun = softc->ctl_luns[ooa_hdr->lun_num]; 2708 ctl_ioctl_fill_ooa(lun, &cur_fill_num, ooa_hdr, 2709 entries); 2710 } 2711 mtx_unlock(&softc->ctl_lock); 2712 2713 ooa_hdr->fill_num = min(cur_fill_num, ooa_hdr->alloc_num); 2714 ooa_hdr->fill_len = ooa_hdr->fill_num * 2715 sizeof(struct ctl_ooa_entry); 2716 retval = copyout(entries, ooa_hdr->entries, ooa_hdr->fill_len); 2717 if (retval != 0) { 2718 printf("%s: error copying out %d bytes for OOA dump\n", 2719 __func__, ooa_hdr->fill_len); 2720 } 2721 2722 getbinuptime(&ooa_hdr->cur_bt); 2723 2724 if (cur_fill_num > ooa_hdr->alloc_num) { 2725 ooa_hdr->dropped_num = cur_fill_num -ooa_hdr->alloc_num; 2726 ooa_hdr->status = CTL_OOA_NEED_MORE_SPACE; 2727 } else { 2728 ooa_hdr->dropped_num = 0; 2729 ooa_hdr->status = CTL_OOA_OK; 2730 } 2731 2732 free(entries, M_CTL); 2733 break; 2734 } 2735 case CTL_DELAY_IO: { 2736 struct ctl_io_delay_info *delay_info; 2737 2738 delay_info = (struct ctl_io_delay_info *)addr; 2739 2740#ifdef CTL_IO_DELAY 2741 mtx_lock(&softc->ctl_lock); 2742 2743 if ((delay_info->lun_id >= CTL_MAX_LUNS) 2744 || (softc->ctl_luns[delay_info->lun_id] == NULL)) { 2745 delay_info->status = CTL_DELAY_STATUS_INVALID_LUN; 2746 } else { 2747 lun = softc->ctl_luns[delay_info->lun_id]; 2748 mtx_lock(&lun->lun_lock); 2749 2750 delay_info->status = CTL_DELAY_STATUS_OK; 2751 2752 switch (delay_info->delay_type) { 2753 case CTL_DELAY_TYPE_CONT: 2754 break; 2755 case CTL_DELAY_TYPE_ONESHOT: 2756 break; 2757 default: 2758 delay_info->status = 2759 CTL_DELAY_STATUS_INVALID_TYPE; 2760 break; 2761 } 2762 2763 switch (delay_info->delay_loc) { 2764 case CTL_DELAY_LOC_DATAMOVE: 2765 lun->delay_info.datamove_type = 2766 delay_info->delay_type; 2767 lun->delay_info.datamove_delay = 2768 delay_info->delay_secs; 2769 break; 2770 case CTL_DELAY_LOC_DONE: 2771 lun->delay_info.done_type = 2772 delay_info->delay_type; 2773 lun->delay_info.done_delay = 2774 delay_info->delay_secs; 2775 break; 2776 default: 2777 delay_info->status = 2778 CTL_DELAY_STATUS_INVALID_LOC; 2779 break; 2780 } 2781 mtx_unlock(&lun->lun_lock); 2782 } 2783 2784 mtx_unlock(&softc->ctl_lock); 2785#else 2786 delay_info->status = CTL_DELAY_STATUS_NOT_IMPLEMENTED; 2787#endif /* CTL_IO_DELAY */ 2788 break; 2789 } 2790 case CTL_GETSTATS: { 2791 struct ctl_stats *stats; 2792 int i; 2793 2794 stats = (struct ctl_stats *)addr; 2795 2796 if ((sizeof(struct ctl_lun_io_stats) * softc->num_luns) > 2797 stats->alloc_len) { 2798 stats->status = CTL_SS_NEED_MORE_SPACE; 2799 stats->num_luns = softc->num_luns; 2800 break; 2801 } 2802 /* 2803 * XXX KDM no locking here. If the LUN list changes, 2804 * things can blow up. 2805 */ 2806 i = 0; 2807 STAILQ_FOREACH(lun, &softc->lun_list, links) { 2808 retval = copyout(&lun->stats, &stats->lun_stats[i++], 2809 sizeof(lun->stats)); 2810 if (retval != 0) 2811 break; 2812 } 2813 stats->num_luns = softc->num_luns; 2814 stats->fill_len = sizeof(struct ctl_lun_io_stats) * 2815 softc->num_luns; 2816 stats->status = CTL_SS_OK; 2817#ifdef CTL_TIME_IO 2818 stats->flags = CTL_STATS_FLAG_TIME_VALID; 2819#else 2820 stats->flags = CTL_STATS_FLAG_NONE; 2821#endif 2822 getnanouptime(&stats->timestamp); 2823 break; 2824 } 2825 case CTL_ERROR_INJECT: { 2826 struct ctl_error_desc *err_desc, *new_err_desc; 2827 2828 err_desc = (struct ctl_error_desc *)addr; 2829 2830 new_err_desc = malloc(sizeof(*new_err_desc), M_CTL, 2831 M_WAITOK | M_ZERO); 2832 bcopy(err_desc, new_err_desc, sizeof(*new_err_desc)); 2833 2834 mtx_lock(&softc->ctl_lock); 2835 lun = softc->ctl_luns[err_desc->lun_id]; 2836 if (lun == NULL) { 2837 mtx_unlock(&softc->ctl_lock); 2838 free(new_err_desc, M_CTL); 2839 printf("%s: CTL_ERROR_INJECT: invalid LUN %ju\n", 2840 __func__, (uintmax_t)err_desc->lun_id); 2841 retval = EINVAL; 2842 break; 2843 } 2844 mtx_lock(&lun->lun_lock); 2845 mtx_unlock(&softc->ctl_lock); 2846 2847 /* 2848 * We could do some checking here to verify the validity 2849 * of the request, but given the complexity of error 2850 * injection requests, the checking logic would be fairly 2851 * complex. 2852 * 2853 * For now, if the request is invalid, it just won't get 2854 * executed and might get deleted. 2855 */ 2856 STAILQ_INSERT_TAIL(&lun->error_list, new_err_desc, links); 2857 2858 /* 2859 * XXX KDM check to make sure the serial number is unique, 2860 * in case we somehow manage to wrap. That shouldn't 2861 * happen for a very long time, but it's the right thing to 2862 * do. 2863 */ 2864 new_err_desc->serial = lun->error_serial; 2865 err_desc->serial = lun->error_serial; 2866 lun->error_serial++; 2867 2868 mtx_unlock(&lun->lun_lock); 2869 break; 2870 } 2871 case CTL_ERROR_INJECT_DELETE: { 2872 struct ctl_error_desc *delete_desc, *desc, *desc2; 2873 int delete_done; 2874 2875 delete_desc = (struct ctl_error_desc *)addr; 2876 delete_done = 0; 2877 2878 mtx_lock(&softc->ctl_lock); 2879 lun = softc->ctl_luns[delete_desc->lun_id]; 2880 if (lun == NULL) { 2881 mtx_unlock(&softc->ctl_lock); 2882 printf("%s: CTL_ERROR_INJECT_DELETE: invalid LUN %ju\n", 2883 __func__, (uintmax_t)delete_desc->lun_id); 2884 retval = EINVAL; 2885 break; 2886 } 2887 mtx_lock(&lun->lun_lock); 2888 mtx_unlock(&softc->ctl_lock); 2889 STAILQ_FOREACH_SAFE(desc, &lun->error_list, links, desc2) { 2890 if (desc->serial != delete_desc->serial) 2891 continue; 2892 2893 STAILQ_REMOVE(&lun->error_list, desc, ctl_error_desc, 2894 links); 2895 free(desc, M_CTL); 2896 delete_done = 1; 2897 } 2898 mtx_unlock(&lun->lun_lock); 2899 if (delete_done == 0) { 2900 printf("%s: CTL_ERROR_INJECT_DELETE: can't find " 2901 "error serial %ju on LUN %u\n", __func__, 2902 delete_desc->serial, delete_desc->lun_id); 2903 retval = EINVAL; 2904 break; 2905 } 2906 break; 2907 } 2908 case CTL_DUMP_STRUCTS: { 2909 int i, j, k; 2910 struct ctl_port *port; 2911 struct ctl_frontend *fe; 2912 2913 mtx_lock(&softc->ctl_lock); 2914 printf("CTL Persistent Reservation information start:\n"); 2915 for (i = 0; i < CTL_MAX_LUNS; i++) { 2916 lun = softc->ctl_luns[i]; 2917 2918 if ((lun == NULL) 2919 || ((lun->flags & CTL_LUN_DISABLED) != 0)) 2920 continue; 2921 2922 for (j = 0; j < CTL_MAX_PORTS; j++) { 2923 if (lun->pr_keys[j] == NULL) 2924 continue; 2925 for (k = 0; k < CTL_MAX_INIT_PER_PORT; k++){ 2926 if (lun->pr_keys[j][k] == 0) 2927 continue; 2928 printf(" LUN %d port %d iid %d key " 2929 "%#jx\n", i, j, k, 2930 (uintmax_t)lun->pr_keys[j][k]); 2931 } 2932 } 2933 } 2934 printf("CTL Persistent Reservation information end\n"); 2935 printf("CTL Ports:\n"); 2936 STAILQ_FOREACH(port, &softc->port_list, links) { 2937 printf(" Port %d '%s' Frontend '%s' Type %u pp %d vp %d WWNN " 2938 "%#jx WWPN %#jx\n", port->targ_port, port->port_name, 2939 port->frontend->name, port->port_type, 2940 port->physical_port, port->virtual_port, 2941 (uintmax_t)port->wwnn, (uintmax_t)port->wwpn); 2942 for (j = 0; j < CTL_MAX_INIT_PER_PORT; j++) { 2943 if (port->wwpn_iid[j].in_use == 0 && 2944 port->wwpn_iid[j].wwpn == 0 && 2945 port->wwpn_iid[j].name == NULL) 2946 continue; 2947 2948 printf(" iid %u use %d WWPN %#jx '%s'\n", 2949 j, port->wwpn_iid[j].in_use, 2950 (uintmax_t)port->wwpn_iid[j].wwpn, 2951 port->wwpn_iid[j].name); 2952 } 2953 } 2954 printf("CTL Port information end\n"); 2955 mtx_unlock(&softc->ctl_lock); 2956 /* 2957 * XXX KDM calling this without a lock. We'd likely want 2958 * to drop the lock before calling the frontend's dump 2959 * routine anyway. 2960 */ 2961 printf("CTL Frontends:\n"); 2962 STAILQ_FOREACH(fe, &softc->fe_list, links) { 2963 printf(" Frontend '%s'\n", fe->name); 2964 if (fe->fe_dump != NULL) 2965 fe->fe_dump(); 2966 } 2967 printf("CTL Frontend information end\n"); 2968 break; 2969 } 2970 case CTL_LUN_REQ: { 2971 struct ctl_lun_req *lun_req; 2972 struct ctl_backend_driver *backend; 2973 2974 lun_req = (struct ctl_lun_req *)addr; 2975 2976 backend = ctl_backend_find(lun_req->backend); 2977 if (backend == NULL) { 2978 lun_req->status = CTL_LUN_ERROR; 2979 snprintf(lun_req->error_str, 2980 sizeof(lun_req->error_str), 2981 "Backend \"%s\" not found.", 2982 lun_req->backend); 2983 break; 2984 } 2985 if (lun_req->num_be_args > 0) { 2986 lun_req->kern_be_args = ctl_copyin_args( 2987 lun_req->num_be_args, 2988 lun_req->be_args, 2989 lun_req->error_str, 2990 sizeof(lun_req->error_str)); 2991 if (lun_req->kern_be_args == NULL) { 2992 lun_req->status = CTL_LUN_ERROR; 2993 break; 2994 } 2995 } 2996 2997 retval = backend->ioctl(dev, cmd, addr, flag, td); 2998 2999 if (lun_req->num_be_args > 0) { 3000 ctl_copyout_args(lun_req->num_be_args, 3001 lun_req->kern_be_args); 3002 ctl_free_args(lun_req->num_be_args, 3003 lun_req->kern_be_args); 3004 } 3005 break; 3006 } 3007 case CTL_LUN_LIST: { 3008 struct sbuf *sb; 3009 struct ctl_lun_list *list; 3010 struct ctl_option *opt; 3011 3012 list = (struct ctl_lun_list *)addr; 3013 3014 /* 3015 * Allocate a fixed length sbuf here, based on the length 3016 * of the user's buffer. We could allocate an auto-extending 3017 * buffer, and then tell the user how much larger our 3018 * amount of data is than his buffer, but that presents 3019 * some problems: 3020 * 3021 * 1. The sbuf(9) routines use a blocking malloc, and so 3022 * we can't hold a lock while calling them with an 3023 * auto-extending buffer. 3024 * 3025 * 2. There is not currently a LUN reference counting 3026 * mechanism, outside of outstanding transactions on 3027 * the LUN's OOA queue. So a LUN could go away on us 3028 * while we're getting the LUN number, backend-specific 3029 * information, etc. Thus, given the way things 3030 * currently work, we need to hold the CTL lock while 3031 * grabbing LUN information. 3032 * 3033 * So, from the user's standpoint, the best thing to do is 3034 * allocate what he thinks is a reasonable buffer length, 3035 * and then if he gets a CTL_LUN_LIST_NEED_MORE_SPACE error, 3036 * double the buffer length and try again. (And repeat 3037 * that until he succeeds.) 3038 */ 3039 sb = sbuf_new(NULL, NULL, list->alloc_len, SBUF_FIXEDLEN); 3040 if (sb == NULL) { 3041 list->status = CTL_LUN_LIST_ERROR; 3042 snprintf(list->error_str, sizeof(list->error_str), 3043 "Unable to allocate %d bytes for LUN list", 3044 list->alloc_len); 3045 break; 3046 } 3047 3048 sbuf_printf(sb, "<ctllunlist>\n"); 3049 3050 mtx_lock(&softc->ctl_lock); 3051 STAILQ_FOREACH(lun, &softc->lun_list, links) { 3052 mtx_lock(&lun->lun_lock); 3053 retval = sbuf_printf(sb, "<lun id=\"%ju\">\n", 3054 (uintmax_t)lun->lun); 3055 3056 /* 3057 * Bail out as soon as we see that we've overfilled 3058 * the buffer. 3059 */ 3060 if (retval != 0) 3061 break; 3062 3063 retval = sbuf_printf(sb, "\t<backend_type>%s" 3064 "</backend_type>\n", 3065 (lun->backend == NULL) ? "none" : 3066 lun->backend->name); 3067 3068 if (retval != 0) 3069 break; 3070 3071 retval = sbuf_printf(sb, "\t<lun_type>%d</lun_type>\n", 3072 lun->be_lun->lun_type); 3073 3074 if (retval != 0) 3075 break; 3076 3077 if (lun->backend == NULL) { 3078 retval = sbuf_printf(sb, "</lun>\n"); 3079 if (retval != 0) 3080 break; 3081 continue; 3082 } 3083 3084 retval = sbuf_printf(sb, "\t<size>%ju</size>\n", 3085 (lun->be_lun->maxlba > 0) ? 3086 lun->be_lun->maxlba + 1 : 0); 3087 3088 if (retval != 0) 3089 break; 3090 3091 retval = sbuf_printf(sb, "\t<blocksize>%u</blocksize>\n", 3092 lun->be_lun->blocksize); 3093 3094 if (retval != 0) 3095 break; 3096 3097 retval = sbuf_printf(sb, "\t<serial_number>"); 3098 3099 if (retval != 0) 3100 break; 3101 3102 retval = ctl_sbuf_printf_esc(sb, 3103 lun->be_lun->serial_num, 3104 sizeof(lun->be_lun->serial_num)); 3105 3106 if (retval != 0) 3107 break; 3108 3109 retval = sbuf_printf(sb, "</serial_number>\n"); 3110 3111 if (retval != 0) 3112 break; 3113 3114 retval = sbuf_printf(sb, "\t<device_id>"); 3115 3116 if (retval != 0) 3117 break; 3118 3119 retval = ctl_sbuf_printf_esc(sb, 3120 lun->be_lun->device_id, 3121 sizeof(lun->be_lun->device_id)); 3122 3123 if (retval != 0) 3124 break; 3125 3126 retval = sbuf_printf(sb, "</device_id>\n"); 3127 3128 if (retval != 0) 3129 break; 3130 3131 if (lun->backend->lun_info != NULL) { 3132 retval = lun->backend->lun_info(lun->be_lun->be_lun, sb); 3133 if (retval != 0) 3134 break; 3135 } 3136 STAILQ_FOREACH(opt, &lun->be_lun->options, links) { 3137 retval = sbuf_printf(sb, "\t<%s>%s</%s>\n", 3138 opt->name, opt->value, opt->name); 3139 if (retval != 0) 3140 break; 3141 } 3142 3143 retval = sbuf_printf(sb, "</lun>\n"); 3144 3145 if (retval != 0) 3146 break; 3147 mtx_unlock(&lun->lun_lock); 3148 } 3149 if (lun != NULL) 3150 mtx_unlock(&lun->lun_lock); 3151 mtx_unlock(&softc->ctl_lock); 3152 3153 if ((retval != 0) 3154 || ((retval = sbuf_printf(sb, "</ctllunlist>\n")) != 0)) { 3155 retval = 0; 3156 sbuf_delete(sb); 3157 list->status = CTL_LUN_LIST_NEED_MORE_SPACE; 3158 snprintf(list->error_str, sizeof(list->error_str), 3159 "Out of space, %d bytes is too small", 3160 list->alloc_len); 3161 break; 3162 } 3163 3164 sbuf_finish(sb); 3165 3166 retval = copyout(sbuf_data(sb), list->lun_xml, 3167 sbuf_len(sb) + 1); 3168 3169 list->fill_len = sbuf_len(sb) + 1; 3170 list->status = CTL_LUN_LIST_OK; 3171 sbuf_delete(sb); 3172 break; 3173 } 3174 case CTL_ISCSI: { 3175 struct ctl_iscsi *ci; 3176 struct ctl_frontend *fe; 3177 3178 ci = (struct ctl_iscsi *)addr; 3179 3180 fe = ctl_frontend_find("iscsi"); 3181 if (fe == NULL) { 3182 ci->status = CTL_ISCSI_ERROR; 3183 snprintf(ci->error_str, sizeof(ci->error_str), 3184 "Frontend \"iscsi\" not found."); 3185 break; 3186 } 3187 3188 retval = fe->ioctl(dev, cmd, addr, flag, td); 3189 break; 3190 } 3191 case CTL_PORT_REQ: { 3192 struct ctl_req *req; 3193 struct ctl_frontend *fe; 3194 3195 req = (struct ctl_req *)addr; 3196 3197 fe = ctl_frontend_find(req->driver); 3198 if (fe == NULL) { 3199 req->status = CTL_LUN_ERROR; 3200 snprintf(req->error_str, sizeof(req->error_str), 3201 "Frontend \"%s\" not found.", req->driver); 3202 break; 3203 } 3204 if (req->num_args > 0) { 3205 req->kern_args = ctl_copyin_args(req->num_args, 3206 req->args, req->error_str, sizeof(req->error_str)); 3207 if (req->kern_args == NULL) { 3208 req->status = CTL_LUN_ERROR; 3209 break; 3210 } 3211 } 3212 3213 if (fe->ioctl) 3214 retval = fe->ioctl(dev, cmd, addr, flag, td); 3215 else 3216 retval = ENODEV; 3217 3218 if (req->num_args > 0) { 3219 ctl_copyout_args(req->num_args, req->kern_args); 3220 ctl_free_args(req->num_args, req->kern_args); 3221 } 3222 break; 3223 } 3224 case CTL_PORT_LIST: { 3225 struct sbuf *sb; 3226 struct ctl_port *port; 3227 struct ctl_lun_list *list; 3228 struct ctl_option *opt; 3229 int j; 3230 uint32_t plun; 3231 3232 list = (struct ctl_lun_list *)addr; 3233 3234 sb = sbuf_new(NULL, NULL, list->alloc_len, SBUF_FIXEDLEN); 3235 if (sb == NULL) { 3236 list->status = CTL_LUN_LIST_ERROR; 3237 snprintf(list->error_str, sizeof(list->error_str), 3238 "Unable to allocate %d bytes for LUN list", 3239 list->alloc_len); 3240 break; 3241 } 3242 3243 sbuf_printf(sb, "<ctlportlist>\n"); 3244 3245 mtx_lock(&softc->ctl_lock); 3246 STAILQ_FOREACH(port, &softc->port_list, links) { 3247 retval = sbuf_printf(sb, "<targ_port id=\"%ju\">\n", 3248 (uintmax_t)port->targ_port); 3249 3250 /* 3251 * Bail out as soon as we see that we've overfilled 3252 * the buffer. 3253 */ 3254 if (retval != 0) 3255 break; 3256 3257 retval = sbuf_printf(sb, "\t<frontend_type>%s" 3258 "</frontend_type>\n", port->frontend->name); 3259 if (retval != 0) 3260 break; 3261 3262 retval = sbuf_printf(sb, "\t<port_type>%d</port_type>\n", 3263 port->port_type); 3264 if (retval != 0) 3265 break; 3266 3267 retval = sbuf_printf(sb, "\t<online>%s</online>\n", 3268 (port->status & CTL_PORT_STATUS_ONLINE) ? "YES" : "NO"); 3269 if (retval != 0) 3270 break; 3271 3272 retval = sbuf_printf(sb, "\t<port_name>%s</port_name>\n", 3273 port->port_name); 3274 if (retval != 0) 3275 break; 3276 3277 retval = sbuf_printf(sb, "\t<physical_port>%d</physical_port>\n", 3278 port->physical_port); 3279 if (retval != 0) 3280 break; 3281 3282 retval = sbuf_printf(sb, "\t<virtual_port>%d</virtual_port>\n", 3283 port->virtual_port); 3284 if (retval != 0) 3285 break; 3286 3287 if (port->target_devid != NULL) { 3288 sbuf_printf(sb, "\t<target>"); 3289 ctl_id_sbuf(port->target_devid, sb); 3290 sbuf_printf(sb, "</target>\n"); 3291 } 3292 3293 if (port->port_devid != NULL) { 3294 sbuf_printf(sb, "\t<port>"); 3295 ctl_id_sbuf(port->port_devid, sb); 3296 sbuf_printf(sb, "</port>\n"); 3297 } 3298 3299 if (port->port_info != NULL) { 3300 retval = port->port_info(port->onoff_arg, sb); 3301 if (retval != 0) 3302 break; 3303 } 3304 STAILQ_FOREACH(opt, &port->options, links) { 3305 retval = sbuf_printf(sb, "\t<%s>%s</%s>\n", 3306 opt->name, opt->value, opt->name); 3307 if (retval != 0) 3308 break; 3309 } 3310 3311 if (port->lun_map != NULL) { 3312 sbuf_printf(sb, "\t<lun_map>on</lun_map>\n"); 3313 for (j = 0; j < CTL_MAX_LUNS; j++) { 3314 plun = ctl_lun_map_from_port(port, j); 3315 if (plun >= CTL_MAX_LUNS) 3316 continue; 3317 sbuf_printf(sb, 3318 "\t<lun id=\"%u\">%u</lun>\n", 3319 j, plun); 3320 } 3321 } 3322 3323 for (j = 0; j < CTL_MAX_INIT_PER_PORT; j++) { 3324 if (port->wwpn_iid[j].in_use == 0 || 3325 (port->wwpn_iid[j].wwpn == 0 && 3326 port->wwpn_iid[j].name == NULL)) 3327 continue; 3328 3329 if (port->wwpn_iid[j].name != NULL) 3330 retval = sbuf_printf(sb, 3331 "\t<initiator id=\"%u\">%s</initiator>\n", 3332 j, port->wwpn_iid[j].name); 3333 else 3334 retval = sbuf_printf(sb, 3335 "\t<initiator id=\"%u\">naa.%08jx</initiator>\n", 3336 j, port->wwpn_iid[j].wwpn); 3337 if (retval != 0) 3338 break; 3339 } 3340 if (retval != 0) 3341 break; 3342 3343 retval = sbuf_printf(sb, "</targ_port>\n"); 3344 if (retval != 0) 3345 break; 3346 } 3347 mtx_unlock(&softc->ctl_lock); 3348 3349 if ((retval != 0) 3350 || ((retval = sbuf_printf(sb, "</ctlportlist>\n")) != 0)) { 3351 retval = 0; 3352 sbuf_delete(sb); 3353 list->status = CTL_LUN_LIST_NEED_MORE_SPACE; 3354 snprintf(list->error_str, sizeof(list->error_str), 3355 "Out of space, %d bytes is too small", 3356 list->alloc_len); 3357 break; 3358 } 3359 3360 sbuf_finish(sb); 3361 3362 retval = copyout(sbuf_data(sb), list->lun_xml, 3363 sbuf_len(sb) + 1); 3364 3365 list->fill_len = sbuf_len(sb) + 1; 3366 list->status = CTL_LUN_LIST_OK; 3367 sbuf_delete(sb); 3368 break; 3369 } 3370 case CTL_LUN_MAP: { 3371 struct ctl_lun_map *lm = (struct ctl_lun_map *)addr; 3372 struct ctl_port *port; 3373 3374 mtx_lock(&softc->ctl_lock); 3375 if (lm->port < softc->port_min || 3376 lm->port >= softc->port_max || 3377 (port = softc->ctl_ports[lm->port]) == NULL) { 3378 mtx_unlock(&softc->ctl_lock); 3379 return (ENXIO); 3380 } 3381 if (port->status & CTL_PORT_STATUS_ONLINE) { 3382 STAILQ_FOREACH(lun, &softc->lun_list, links) { 3383 if (ctl_lun_map_to_port(port, lun->lun) >= 3384 CTL_MAX_LUNS) 3385 continue; 3386 mtx_lock(&lun->lun_lock); 3387 ctl_est_ua_port(lun, lm->port, -1, 3388 CTL_UA_LUN_CHANGE); 3389 mtx_unlock(&lun->lun_lock); 3390 } 3391 } 3392 mtx_unlock(&softc->ctl_lock); // XXX: port_enable sleeps 3393 if (lm->plun < CTL_MAX_LUNS) { 3394 if (lm->lun == UINT32_MAX) 3395 retval = ctl_lun_map_unset(port, lm->plun); 3396 else if (lm->lun < CTL_MAX_LUNS && 3397 softc->ctl_luns[lm->lun] != NULL) 3398 retval = ctl_lun_map_set(port, lm->plun, lm->lun); 3399 else 3400 return (ENXIO); 3401 } else if (lm->plun == UINT32_MAX) { 3402 if (lm->lun == UINT32_MAX) 3403 retval = ctl_lun_map_deinit(port); 3404 else 3405 retval = ctl_lun_map_init(port); 3406 } else 3407 return (ENXIO); 3408 if (port->status & CTL_PORT_STATUS_ONLINE) 3409 ctl_isc_announce_port(port); 3410 break; 3411 } 3412 default: { 3413 /* XXX KDM should we fix this? */ 3414#if 0 3415 struct ctl_backend_driver *backend; 3416 unsigned int type; 3417 int found; 3418 3419 found = 0; 3420 3421 /* 3422 * We encode the backend type as the ioctl type for backend 3423 * ioctls. So parse it out here, and then search for a 3424 * backend of this type. 3425 */ 3426 type = _IOC_TYPE(cmd); 3427 3428 STAILQ_FOREACH(backend, &softc->be_list, links) { 3429 if (backend->type == type) { 3430 found = 1; 3431 break; 3432 } 3433 } 3434 if (found == 0) { 3435 printf("ctl: unknown ioctl command %#lx or backend " 3436 "%d\n", cmd, type); 3437 retval = EINVAL; 3438 break; 3439 } 3440 retval = backend->ioctl(dev, cmd, addr, flag, td); 3441#endif 3442 retval = ENOTTY; 3443 break; 3444 } 3445 } 3446 return (retval); 3447} 3448 3449uint32_t 3450ctl_get_initindex(struct ctl_nexus *nexus) 3451{ 3452 return (nexus->initid + (nexus->targ_port * CTL_MAX_INIT_PER_PORT)); 3453} 3454 3455int 3456ctl_lun_map_init(struct ctl_port *port) 3457{ 3458 struct ctl_softc *softc = port->ctl_softc; 3459 struct ctl_lun *lun; 3460 uint32_t i; 3461 3462 if (port->lun_map == NULL) 3463 port->lun_map = malloc(sizeof(uint32_t) * CTL_MAX_LUNS, 3464 M_CTL, M_NOWAIT); 3465 if (port->lun_map == NULL) 3466 return (ENOMEM); 3467 for (i = 0; i < CTL_MAX_LUNS; i++) 3468 port->lun_map[i] = UINT32_MAX; 3469 if (port->status & CTL_PORT_STATUS_ONLINE) { 3470 if (port->lun_disable != NULL) { 3471 STAILQ_FOREACH(lun, &softc->lun_list, links) 3472 port->lun_disable(port->targ_lun_arg, lun->lun); 3473 } 3474 ctl_isc_announce_port(port); 3475 } 3476 return (0); 3477} 3478 3479int 3480ctl_lun_map_deinit(struct ctl_port *port) 3481{ 3482 struct ctl_softc *softc = port->ctl_softc; 3483 struct ctl_lun *lun; 3484 3485 if (port->lun_map == NULL) 3486 return (0); 3487 free(port->lun_map, M_CTL); 3488 port->lun_map = NULL; 3489 if (port->status & CTL_PORT_STATUS_ONLINE) { 3490 if (port->lun_enable != NULL) { 3491 STAILQ_FOREACH(lun, &softc->lun_list, links) 3492 port->lun_enable(port->targ_lun_arg, lun->lun); 3493 } 3494 ctl_isc_announce_port(port); 3495 } 3496 return (0); 3497} 3498 3499int 3500ctl_lun_map_set(struct ctl_port *port, uint32_t plun, uint32_t glun) 3501{ 3502 int status; 3503 uint32_t old; 3504 3505 if (port->lun_map == NULL) { 3506 status = ctl_lun_map_init(port); 3507 if (status != 0) 3508 return (status); 3509 } 3510 old = port->lun_map[plun]; 3511 port->lun_map[plun] = glun; 3512 if ((port->status & CTL_PORT_STATUS_ONLINE) && old >= CTL_MAX_LUNS) { 3513 if (port->lun_enable != NULL) 3514 port->lun_enable(port->targ_lun_arg, plun); 3515 ctl_isc_announce_port(port); 3516 } 3517 return (0); 3518} 3519 3520int 3521ctl_lun_map_unset(struct ctl_port *port, uint32_t plun) 3522{ 3523 uint32_t old; 3524 3525 if (port->lun_map == NULL) 3526 return (0); 3527 old = port->lun_map[plun]; 3528 port->lun_map[plun] = UINT32_MAX; 3529 if ((port->status & CTL_PORT_STATUS_ONLINE) && old < CTL_MAX_LUNS) { 3530 if (port->lun_disable != NULL) 3531 port->lun_disable(port->targ_lun_arg, plun); 3532 ctl_isc_announce_port(port); 3533 } 3534 return (0); 3535} 3536 3537uint32_t 3538ctl_lun_map_from_port(struct ctl_port *port, uint32_t lun_id) 3539{ 3540 3541 if (port == NULL) 3542 return (UINT32_MAX); 3543 if (port->lun_map == NULL || lun_id >= CTL_MAX_LUNS) 3544 return (lun_id); 3545 return (port->lun_map[lun_id]); 3546} 3547 3548uint32_t 3549ctl_lun_map_to_port(struct ctl_port *port, uint32_t lun_id) 3550{ 3551 uint32_t i; 3552 3553 if (port == NULL) 3554 return (UINT32_MAX); 3555 if (port->lun_map == NULL) 3556 return (lun_id); 3557 for (i = 0; i < CTL_MAX_LUNS; i++) { 3558 if (port->lun_map[i] == lun_id) 3559 return (i); 3560 } 3561 return (UINT32_MAX); 3562} 3563 3564uint32_t 3565ctl_decode_lun(uint64_t encoded) 3566{ 3567 uint8_t lun[8]; 3568 uint32_t result = 0xffffffff; 3569 3570 be64enc(lun, encoded); 3571 switch (lun[0] & RPL_LUNDATA_ATYP_MASK) { 3572 case RPL_LUNDATA_ATYP_PERIPH: 3573 if ((lun[0] & 0x3f) == 0 && lun[2] == 0 && lun[3] == 0 && 3574 lun[4] == 0 && lun[5] == 0 && lun[6] == 0 && lun[7] == 0) 3575 result = lun[1]; 3576 break; 3577 case RPL_LUNDATA_ATYP_FLAT: 3578 if (lun[2] == 0 && lun[3] == 0 && lun[4] == 0 && lun[5] == 0 && 3579 lun[6] == 0 && lun[7] == 0) 3580 result = ((lun[0] & 0x3f) << 8) + lun[1]; 3581 break; 3582 case RPL_LUNDATA_ATYP_EXTLUN: 3583 switch (lun[0] & RPL_LUNDATA_EXT_EAM_MASK) { 3584 case 0x02: 3585 switch (lun[0] & RPL_LUNDATA_EXT_LEN_MASK) { 3586 case 0x00: 3587 result = lun[1]; 3588 break; 3589 case 0x10: 3590 result = (lun[1] << 16) + (lun[2] << 8) + 3591 lun[3]; 3592 break; 3593 case 0x20: 3594 if (lun[1] == 0 && lun[6] == 0 && lun[7] == 0) 3595 result = (lun[2] << 24) + 3596 (lun[3] << 16) + (lun[4] << 8) + 3597 lun[5]; 3598 break; 3599 } 3600 break; 3601 case RPL_LUNDATA_EXT_EAM_NOT_SPEC: 3602 result = 0xffffffff; 3603 break; 3604 } 3605 break; 3606 } 3607 return (result); 3608} 3609 3610uint64_t 3611ctl_encode_lun(uint32_t decoded) 3612{ 3613 uint64_t l = decoded; 3614 3615 if (l <= 0xff) 3616 return (((uint64_t)RPL_LUNDATA_ATYP_PERIPH << 56) | (l << 48)); 3617 if (l <= 0x3fff) 3618 return (((uint64_t)RPL_LUNDATA_ATYP_FLAT << 56) | (l << 48)); 3619 if (l <= 0xffffff) 3620 return (((uint64_t)(RPL_LUNDATA_ATYP_EXTLUN | 0x12) << 56) | 3621 (l << 32)); 3622 return ((((uint64_t)RPL_LUNDATA_ATYP_EXTLUN | 0x22) << 56) | (l << 16)); 3623} 3624 3625static struct ctl_port * 3626ctl_io_port(struct ctl_io_hdr *io_hdr) 3627{ 3628 3629 return (control_softc->ctl_ports[io_hdr->nexus.targ_port]); 3630} 3631 3632int 3633ctl_ffz(uint32_t *mask, uint32_t first, uint32_t last) 3634{ 3635 int i; 3636 3637 for (i = first; i < last; i++) { 3638 if ((mask[i / 32] & (1 << (i % 32))) == 0) 3639 return (i); 3640 } 3641 return (-1); 3642} 3643 3644int 3645ctl_set_mask(uint32_t *mask, uint32_t bit) 3646{ 3647 uint32_t chunk, piece; 3648 3649 chunk = bit >> 5; 3650 piece = bit % (sizeof(uint32_t) * 8); 3651 3652 if ((mask[chunk] & (1 << piece)) != 0) 3653 return (-1); 3654 else 3655 mask[chunk] |= (1 << piece); 3656 3657 return (0); 3658} 3659 3660int 3661ctl_clear_mask(uint32_t *mask, uint32_t bit) 3662{ 3663 uint32_t chunk, piece; 3664 3665 chunk = bit >> 5; 3666 piece = bit % (sizeof(uint32_t) * 8); 3667 3668 if ((mask[chunk] & (1 << piece)) == 0) 3669 return (-1); 3670 else 3671 mask[chunk] &= ~(1 << piece); 3672 3673 return (0); 3674} 3675 3676int 3677ctl_is_set(uint32_t *mask, uint32_t bit) 3678{ 3679 uint32_t chunk, piece; 3680 3681 chunk = bit >> 5; 3682 piece = bit % (sizeof(uint32_t) * 8); 3683 3684 if ((mask[chunk] & (1 << piece)) == 0) 3685 return (0); 3686 else 3687 return (1); 3688} 3689 3690static uint64_t 3691ctl_get_prkey(struct ctl_lun *lun, uint32_t residx) 3692{ 3693 uint64_t *t; 3694 3695 t = lun->pr_keys[residx/CTL_MAX_INIT_PER_PORT]; 3696 if (t == NULL) 3697 return (0); 3698 return (t[residx % CTL_MAX_INIT_PER_PORT]); 3699} 3700 3701static void 3702ctl_clr_prkey(struct ctl_lun *lun, uint32_t residx) 3703{ 3704 uint64_t *t; 3705 3706 t = lun->pr_keys[residx/CTL_MAX_INIT_PER_PORT]; 3707 if (t == NULL) 3708 return; 3709 t[residx % CTL_MAX_INIT_PER_PORT] = 0; 3710} 3711 3712static void 3713ctl_alloc_prkey(struct ctl_lun *lun, uint32_t residx) 3714{ 3715 uint64_t *p; 3716 u_int i; 3717 3718 i = residx/CTL_MAX_INIT_PER_PORT; 3719 if (lun->pr_keys[i] != NULL) 3720 return; 3721 mtx_unlock(&lun->lun_lock); 3722 p = malloc(sizeof(uint64_t) * CTL_MAX_INIT_PER_PORT, M_CTL, 3723 M_WAITOK | M_ZERO); 3724 mtx_lock(&lun->lun_lock); 3725 if (lun->pr_keys[i] == NULL) 3726 lun->pr_keys[i] = p; 3727 else 3728 free(p, M_CTL); 3729} 3730 3731static void 3732ctl_set_prkey(struct ctl_lun *lun, uint32_t residx, uint64_t key) 3733{ 3734 uint64_t *t; 3735 3736 t = lun->pr_keys[residx/CTL_MAX_INIT_PER_PORT]; 3737 KASSERT(t != NULL, ("prkey %d is not allocated", residx)); 3738 t[residx % CTL_MAX_INIT_PER_PORT] = key; 3739} 3740 3741/* 3742 * ctl_softc, pool_name, total_ctl_io are passed in. 3743 * npool is passed out. 3744 */ 3745int 3746ctl_pool_create(struct ctl_softc *ctl_softc, const char *pool_name, 3747 uint32_t total_ctl_io, void **npool) 3748{ 3749#ifdef IO_POOLS 3750 struct ctl_io_pool *pool; 3751 3752 pool = (struct ctl_io_pool *)malloc(sizeof(*pool), M_CTL, 3753 M_NOWAIT | M_ZERO); 3754 if (pool == NULL) 3755 return (ENOMEM); 3756 3757 snprintf(pool->name, sizeof(pool->name), "CTL IO %s", pool_name); 3758 pool->ctl_softc = ctl_softc; 3759 pool->zone = uma_zsecond_create(pool->name, NULL, 3760 NULL, NULL, NULL, ctl_softc->io_zone); 3761 /* uma_prealloc(pool->zone, total_ctl_io); */ 3762 3763 *npool = pool; 3764#else 3765 *npool = ctl_softc->io_zone; 3766#endif 3767 return (0); 3768} 3769 3770void 3771ctl_pool_free(struct ctl_io_pool *pool) 3772{ 3773 3774 if (pool == NULL) 3775 return; 3776 3777#ifdef IO_POOLS 3778 uma_zdestroy(pool->zone); 3779 free(pool, M_CTL); 3780#endif 3781} 3782 3783union ctl_io * 3784ctl_alloc_io(void *pool_ref) 3785{ 3786 union ctl_io *io; 3787#ifdef IO_POOLS 3788 struct ctl_io_pool *pool = (struct ctl_io_pool *)pool_ref; 3789 3790 io = uma_zalloc(pool->zone, M_WAITOK); 3791#else 3792 io = uma_zalloc((uma_zone_t)pool_ref, M_WAITOK); 3793#endif 3794 if (io != NULL) 3795 io->io_hdr.pool = pool_ref; 3796 return (io); 3797} 3798 3799union ctl_io * 3800ctl_alloc_io_nowait(void *pool_ref) 3801{ 3802 union ctl_io *io; 3803#ifdef IO_POOLS 3804 struct ctl_io_pool *pool = (struct ctl_io_pool *)pool_ref; 3805 3806 io = uma_zalloc(pool->zone, M_NOWAIT); 3807#else 3808 io = uma_zalloc((uma_zone_t)pool_ref, M_NOWAIT); 3809#endif 3810 if (io != NULL) 3811 io->io_hdr.pool = pool_ref; 3812 return (io); 3813} 3814 3815void 3816ctl_free_io(union ctl_io *io) 3817{ 3818#ifdef IO_POOLS 3819 struct ctl_io_pool *pool; 3820#endif 3821 3822 if (io == NULL) 3823 return; 3824 3825#ifdef IO_POOLS 3826 pool = (struct ctl_io_pool *)io->io_hdr.pool; 3827 uma_zfree(pool->zone, io); 3828#else 3829 uma_zfree((uma_zone_t)io->io_hdr.pool, io); 3830#endif 3831} 3832 3833void 3834ctl_zero_io(union ctl_io *io) 3835{ 3836 void *pool_ref; 3837 3838 if (io == NULL) 3839 return; 3840 3841 /* 3842 * May need to preserve linked list pointers at some point too. 3843 */ 3844 pool_ref = io->io_hdr.pool; 3845 memset(io, 0, sizeof(*io)); 3846 io->io_hdr.pool = pool_ref; 3847} 3848 3849int 3850ctl_expand_number(const char *buf, uint64_t *num) 3851{ 3852 char *endptr; 3853 uint64_t number; 3854 unsigned shift; 3855 3856 number = strtoq(buf, &endptr, 0); 3857 3858 switch (tolower((unsigned char)*endptr)) { 3859 case 'e': 3860 shift = 60; 3861 break; 3862 case 'p': 3863 shift = 50; 3864 break; 3865 case 't': 3866 shift = 40; 3867 break; 3868 case 'g': 3869 shift = 30; 3870 break; 3871 case 'm': 3872 shift = 20; 3873 break; 3874 case 'k': 3875 shift = 10; 3876 break; 3877 case 'b': 3878 case '\0': /* No unit. */ 3879 *num = number; 3880 return (0); 3881 default: 3882 /* Unrecognized unit. */ 3883 return (-1); 3884 } 3885 3886 if ((number << shift) >> shift != number) { 3887 /* Overflow */ 3888 return (-1); 3889 } 3890 *num = number << shift; 3891 return (0); 3892} 3893 3894 3895/* 3896 * This routine could be used in the future to load default and/or saved 3897 * mode page parameters for a particuar lun. 3898 */ 3899static int 3900ctl_init_page_index(struct ctl_lun *lun) 3901{ 3902 int i, page_code; 3903 struct ctl_page_index *page_index; 3904 const char *value; 3905 uint64_t ival; 3906 3907 memcpy(&lun->mode_pages.index, page_index_template, 3908 sizeof(page_index_template)); 3909 3910 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 3911 3912 page_index = &lun->mode_pages.index[i]; 3913 if (lun->be_lun->lun_type == T_DIRECT && 3914 (page_index->page_flags & CTL_PAGE_FLAG_DIRECT) == 0) 3915 continue; 3916 if (lun->be_lun->lun_type == T_PROCESSOR && 3917 (page_index->page_flags & CTL_PAGE_FLAG_PROC) == 0) 3918 continue; 3919 if (lun->be_lun->lun_type == T_CDROM && 3920 (page_index->page_flags & CTL_PAGE_FLAG_CDROM) == 0) 3921 continue; 3922 3923 page_code = page_index->page_code & SMPH_PC_MASK; 3924 switch (page_code) { 3925 case SMS_RW_ERROR_RECOVERY_PAGE: { 3926 KASSERT(page_index->subpage == SMS_SUBPAGE_PAGE_0, 3927 ("subpage %#x for page %#x is incorrect!", 3928 page_index->subpage, page_code)); 3929 memcpy(&lun->mode_pages.rw_er_page[CTL_PAGE_CURRENT], 3930 &rw_er_page_default, 3931 sizeof(rw_er_page_default)); 3932 memcpy(&lun->mode_pages.rw_er_page[CTL_PAGE_CHANGEABLE], 3933 &rw_er_page_changeable, 3934 sizeof(rw_er_page_changeable)); 3935 memcpy(&lun->mode_pages.rw_er_page[CTL_PAGE_DEFAULT], 3936 &rw_er_page_default, 3937 sizeof(rw_er_page_default)); 3938 memcpy(&lun->mode_pages.rw_er_page[CTL_PAGE_SAVED], 3939 &rw_er_page_default, 3940 sizeof(rw_er_page_default)); 3941 page_index->page_data = 3942 (uint8_t *)lun->mode_pages.rw_er_page; 3943 break; 3944 } 3945 case SMS_FORMAT_DEVICE_PAGE: { 3946 struct scsi_format_page *format_page; 3947 3948 KASSERT(page_index->subpage == SMS_SUBPAGE_PAGE_0, 3949 ("subpage %#x for page %#x is incorrect!", 3950 page_index->subpage, page_code)); 3951 3952 /* 3953 * Sectors per track are set above. Bytes per 3954 * sector need to be set here on a per-LUN basis. 3955 */ 3956 memcpy(&lun->mode_pages.format_page[CTL_PAGE_CURRENT], 3957 &format_page_default, 3958 sizeof(format_page_default)); 3959 memcpy(&lun->mode_pages.format_page[ 3960 CTL_PAGE_CHANGEABLE], &format_page_changeable, 3961 sizeof(format_page_changeable)); 3962 memcpy(&lun->mode_pages.format_page[CTL_PAGE_DEFAULT], 3963 &format_page_default, 3964 sizeof(format_page_default)); 3965 memcpy(&lun->mode_pages.format_page[CTL_PAGE_SAVED], 3966 &format_page_default, 3967 sizeof(format_page_default)); 3968 3969 format_page = &lun->mode_pages.format_page[ 3970 CTL_PAGE_CURRENT]; 3971 scsi_ulto2b(lun->be_lun->blocksize, 3972 format_page->bytes_per_sector); 3973 3974 format_page = &lun->mode_pages.format_page[ 3975 CTL_PAGE_DEFAULT]; 3976 scsi_ulto2b(lun->be_lun->blocksize, 3977 format_page->bytes_per_sector); 3978 3979 format_page = &lun->mode_pages.format_page[ 3980 CTL_PAGE_SAVED]; 3981 scsi_ulto2b(lun->be_lun->blocksize, 3982 format_page->bytes_per_sector); 3983 3984 page_index->page_data = 3985 (uint8_t *)lun->mode_pages.format_page; 3986 break; 3987 } 3988 case SMS_RIGID_DISK_PAGE: { 3989 struct scsi_rigid_disk_page *rigid_disk_page; 3990 uint32_t sectors_per_cylinder; 3991 uint64_t cylinders; 3992#ifndef __XSCALE__ 3993 int shift; 3994#endif /* !__XSCALE__ */ 3995 3996 KASSERT(page_index->subpage == SMS_SUBPAGE_PAGE_0, 3997 ("subpage %#x for page %#x is incorrect!", 3998 page_index->subpage, page_code)); 3999 4000 /* 4001 * Rotation rate and sectors per track are set 4002 * above. We calculate the cylinders here based on 4003 * capacity. Due to the number of heads and 4004 * sectors per track we're using, smaller arrays 4005 * may turn out to have 0 cylinders. Linux and 4006 * FreeBSD don't pay attention to these mode pages 4007 * to figure out capacity, but Solaris does. It 4008 * seems to deal with 0 cylinders just fine, and 4009 * works out a fake geometry based on the capacity. 4010 */ 4011 memcpy(&lun->mode_pages.rigid_disk_page[ 4012 CTL_PAGE_DEFAULT], &rigid_disk_page_default, 4013 sizeof(rigid_disk_page_default)); 4014 memcpy(&lun->mode_pages.rigid_disk_page[ 4015 CTL_PAGE_CHANGEABLE],&rigid_disk_page_changeable, 4016 sizeof(rigid_disk_page_changeable)); 4017 4018 sectors_per_cylinder = CTL_DEFAULT_SECTORS_PER_TRACK * 4019 CTL_DEFAULT_HEADS; 4020 4021 /* 4022 * The divide method here will be more accurate, 4023 * probably, but results in floating point being 4024 * used in the kernel on i386 (__udivdi3()). On the 4025 * XScale, though, __udivdi3() is implemented in 4026 * software. 4027 * 4028 * The shift method for cylinder calculation is 4029 * accurate if sectors_per_cylinder is a power of 4030 * 2. Otherwise it might be slightly off -- you 4031 * might have a bit of a truncation problem. 4032 */ 4033#ifdef __XSCALE__ 4034 cylinders = (lun->be_lun->maxlba + 1) / 4035 sectors_per_cylinder; 4036#else 4037 for (shift = 31; shift > 0; shift--) { 4038 if (sectors_per_cylinder & (1 << shift)) 4039 break; 4040 } 4041 cylinders = (lun->be_lun->maxlba + 1) >> shift; 4042#endif 4043 4044 /* 4045 * We've basically got 3 bytes, or 24 bits for the 4046 * cylinder size in the mode page. If we're over, 4047 * just round down to 2^24. 4048 */ 4049 if (cylinders > 0xffffff) 4050 cylinders = 0xffffff; 4051 4052 rigid_disk_page = &lun->mode_pages.rigid_disk_page[ 4053 CTL_PAGE_DEFAULT]; 4054 scsi_ulto3b(cylinders, rigid_disk_page->cylinders); 4055 4056 if ((value = ctl_get_opt(&lun->be_lun->options, 4057 "rpm")) != NULL) { 4058 scsi_ulto2b(strtol(value, NULL, 0), 4059 rigid_disk_page->rotation_rate); 4060 } 4061 4062 memcpy(&lun->mode_pages.rigid_disk_page[CTL_PAGE_CURRENT], 4063 &lun->mode_pages.rigid_disk_page[CTL_PAGE_DEFAULT], 4064 sizeof(rigid_disk_page_default)); 4065 memcpy(&lun->mode_pages.rigid_disk_page[CTL_PAGE_SAVED], 4066 &lun->mode_pages.rigid_disk_page[CTL_PAGE_DEFAULT], 4067 sizeof(rigid_disk_page_default)); 4068 4069 page_index->page_data = 4070 (uint8_t *)lun->mode_pages.rigid_disk_page; 4071 break; 4072 } 4073 case SMS_VERIFY_ERROR_RECOVERY_PAGE: { 4074 KASSERT(page_index->subpage == SMS_SUBPAGE_PAGE_0, 4075 ("subpage %#x for page %#x is incorrect!", 4076 page_index->subpage, page_code)); 4077 memcpy(&lun->mode_pages.verify_er_page[CTL_PAGE_CURRENT], 4078 &verify_er_page_default, 4079 sizeof(verify_er_page_default)); 4080 memcpy(&lun->mode_pages.verify_er_page[CTL_PAGE_CHANGEABLE], 4081 &verify_er_page_changeable, 4082 sizeof(verify_er_page_changeable)); 4083 memcpy(&lun->mode_pages.verify_er_page[CTL_PAGE_DEFAULT], 4084 &verify_er_page_default, 4085 sizeof(verify_er_page_default)); 4086 memcpy(&lun->mode_pages.verify_er_page[CTL_PAGE_SAVED], 4087 &verify_er_page_default, 4088 sizeof(verify_er_page_default)); 4089 page_index->page_data = 4090 (uint8_t *)lun->mode_pages.verify_er_page; 4091 break; 4092 } 4093 case SMS_CACHING_PAGE: { 4094 struct scsi_caching_page *caching_page; 4095 4096 KASSERT(page_index->subpage == SMS_SUBPAGE_PAGE_0, 4097 ("subpage %#x for page %#x is incorrect!", 4098 page_index->subpage, page_code)); 4099 memcpy(&lun->mode_pages.caching_page[CTL_PAGE_DEFAULT], 4100 &caching_page_default, 4101 sizeof(caching_page_default)); 4102 memcpy(&lun->mode_pages.caching_page[ 4103 CTL_PAGE_CHANGEABLE], &caching_page_changeable, 4104 sizeof(caching_page_changeable)); 4105 memcpy(&lun->mode_pages.caching_page[CTL_PAGE_SAVED], 4106 &caching_page_default, 4107 sizeof(caching_page_default)); 4108 caching_page = &lun->mode_pages.caching_page[ 4109 CTL_PAGE_SAVED]; 4110 value = ctl_get_opt(&lun->be_lun->options, "writecache"); 4111 if (value != NULL && strcmp(value, "off") == 0) 4112 caching_page->flags1 &= ~SCP_WCE; 4113 value = ctl_get_opt(&lun->be_lun->options, "readcache"); 4114 if (value != NULL && strcmp(value, "off") == 0) 4115 caching_page->flags1 |= SCP_RCD; 4116 memcpy(&lun->mode_pages.caching_page[CTL_PAGE_CURRENT], 4117 &lun->mode_pages.caching_page[CTL_PAGE_SAVED], 4118 sizeof(caching_page_default)); 4119 page_index->page_data = 4120 (uint8_t *)lun->mode_pages.caching_page; 4121 break; 4122 } 4123 case SMS_CONTROL_MODE_PAGE: { 4124 switch (page_index->subpage) { 4125 case SMS_SUBPAGE_PAGE_0: { 4126 struct scsi_control_page *control_page; 4127 4128 memcpy(&lun->mode_pages.control_page[ 4129 CTL_PAGE_DEFAULT], 4130 &control_page_default, 4131 sizeof(control_page_default)); 4132 memcpy(&lun->mode_pages.control_page[ 4133 CTL_PAGE_CHANGEABLE], 4134 &control_page_changeable, 4135 sizeof(control_page_changeable)); 4136 memcpy(&lun->mode_pages.control_page[ 4137 CTL_PAGE_SAVED], 4138 &control_page_default, 4139 sizeof(control_page_default)); 4140 control_page = &lun->mode_pages.control_page[ 4141 CTL_PAGE_SAVED]; 4142 value = ctl_get_opt(&lun->be_lun->options, 4143 "reordering"); 4144 if (value != NULL && 4145 strcmp(value, "unrestricted") == 0) { 4146 control_page->queue_flags &= 4147 ~SCP_QUEUE_ALG_MASK; 4148 control_page->queue_flags |= 4149 SCP_QUEUE_ALG_UNRESTRICTED; 4150 } 4151 memcpy(&lun->mode_pages.control_page[ 4152 CTL_PAGE_CURRENT], 4153 &lun->mode_pages.control_page[ 4154 CTL_PAGE_SAVED], 4155 sizeof(control_page_default)); 4156 page_index->page_data = 4157 (uint8_t *)lun->mode_pages.control_page; 4158 break; 4159 } 4160 case 0x01: 4161 memcpy(&lun->mode_pages.control_ext_page[ 4162 CTL_PAGE_DEFAULT], 4163 &control_ext_page_default, 4164 sizeof(control_ext_page_default)); 4165 memcpy(&lun->mode_pages.control_ext_page[ 4166 CTL_PAGE_CHANGEABLE], 4167 &control_ext_page_changeable, 4168 sizeof(control_ext_page_changeable)); 4169 memcpy(&lun->mode_pages.control_ext_page[ 4170 CTL_PAGE_SAVED], 4171 &control_ext_page_default, 4172 sizeof(control_ext_page_default)); 4173 memcpy(&lun->mode_pages.control_ext_page[ 4174 CTL_PAGE_CURRENT], 4175 &lun->mode_pages.control_ext_page[ 4176 CTL_PAGE_SAVED], 4177 sizeof(control_ext_page_default)); 4178 page_index->page_data = 4179 (uint8_t *)lun->mode_pages.control_ext_page; 4180 break; 4181 default: 4182 panic("subpage %#x for page %#x is incorrect!", 4183 page_index->subpage, page_code); 4184 } 4185 break; 4186 } 4187 case SMS_INFO_EXCEPTIONS_PAGE: { 4188 switch (page_index->subpage) { 4189 case SMS_SUBPAGE_PAGE_0: 4190 memcpy(&lun->mode_pages.ie_page[CTL_PAGE_CURRENT], 4191 &ie_page_default, 4192 sizeof(ie_page_default)); 4193 memcpy(&lun->mode_pages.ie_page[ 4194 CTL_PAGE_CHANGEABLE], &ie_page_changeable, 4195 sizeof(ie_page_changeable)); 4196 memcpy(&lun->mode_pages.ie_page[CTL_PAGE_DEFAULT], 4197 &ie_page_default, 4198 sizeof(ie_page_default)); 4199 memcpy(&lun->mode_pages.ie_page[CTL_PAGE_SAVED], 4200 &ie_page_default, 4201 sizeof(ie_page_default)); 4202 page_index->page_data = 4203 (uint8_t *)lun->mode_pages.ie_page; 4204 break; 4205 case 0x02: { 4206 struct ctl_logical_block_provisioning_page *page; 4207 4208 memcpy(&lun->mode_pages.lbp_page[CTL_PAGE_DEFAULT], 4209 &lbp_page_default, 4210 sizeof(lbp_page_default)); 4211 memcpy(&lun->mode_pages.lbp_page[ 4212 CTL_PAGE_CHANGEABLE], &lbp_page_changeable, 4213 sizeof(lbp_page_changeable)); 4214 memcpy(&lun->mode_pages.lbp_page[CTL_PAGE_SAVED], 4215 &lbp_page_default, 4216 sizeof(lbp_page_default)); 4217 page = &lun->mode_pages.lbp_page[CTL_PAGE_SAVED]; 4218 value = ctl_get_opt(&lun->be_lun->options, 4219 "avail-threshold"); 4220 if (value != NULL && 4221 ctl_expand_number(value, &ival) == 0) { 4222 page->descr[0].flags |= SLBPPD_ENABLED | 4223 SLBPPD_ARMING_DEC; 4224 if (lun->be_lun->blocksize) 4225 ival /= lun->be_lun->blocksize; 4226 else 4227 ival /= 512; 4228 scsi_ulto4b(ival >> CTL_LBP_EXPONENT, 4229 page->descr[0].count); 4230 } 4231 value = ctl_get_opt(&lun->be_lun->options, 4232 "used-threshold"); 4233 if (value != NULL && 4234 ctl_expand_number(value, &ival) == 0) { 4235 page->descr[1].flags |= SLBPPD_ENABLED | 4236 SLBPPD_ARMING_INC; 4237 if (lun->be_lun->blocksize) 4238 ival /= lun->be_lun->blocksize; 4239 else 4240 ival /= 512; 4241 scsi_ulto4b(ival >> CTL_LBP_EXPONENT, 4242 page->descr[1].count); 4243 } 4244 value = ctl_get_opt(&lun->be_lun->options, 4245 "pool-avail-threshold"); 4246 if (value != NULL && 4247 ctl_expand_number(value, &ival) == 0) { 4248 page->descr[2].flags |= SLBPPD_ENABLED | 4249 SLBPPD_ARMING_DEC; 4250 if (lun->be_lun->blocksize) 4251 ival /= lun->be_lun->blocksize; 4252 else 4253 ival /= 512; 4254 scsi_ulto4b(ival >> CTL_LBP_EXPONENT, 4255 page->descr[2].count); 4256 } 4257 value = ctl_get_opt(&lun->be_lun->options, 4258 "pool-used-threshold"); 4259 if (value != NULL && 4260 ctl_expand_number(value, &ival) == 0) { 4261 page->descr[3].flags |= SLBPPD_ENABLED | 4262 SLBPPD_ARMING_INC; 4263 if (lun->be_lun->blocksize) 4264 ival /= lun->be_lun->blocksize; 4265 else 4266 ival /= 512; 4267 scsi_ulto4b(ival >> CTL_LBP_EXPONENT, 4268 page->descr[3].count); 4269 } 4270 memcpy(&lun->mode_pages.lbp_page[CTL_PAGE_CURRENT], 4271 &lun->mode_pages.lbp_page[CTL_PAGE_SAVED], 4272 sizeof(lbp_page_default)); 4273 page_index->page_data = 4274 (uint8_t *)lun->mode_pages.lbp_page; 4275 break; 4276 } 4277 default: 4278 panic("subpage %#x for page %#x is incorrect!", 4279 page_index->subpage, page_code); 4280 } 4281 break; 4282 } 4283 case SMS_CDDVD_CAPS_PAGE:{ 4284 KASSERT(page_index->subpage == SMS_SUBPAGE_PAGE_0, 4285 ("subpage %#x for page %#x is incorrect!", 4286 page_index->subpage, page_code)); 4287 memcpy(&lun->mode_pages.cddvd_page[CTL_PAGE_DEFAULT], 4288 &cddvd_page_default, 4289 sizeof(cddvd_page_default)); 4290 memcpy(&lun->mode_pages.cddvd_page[ 4291 CTL_PAGE_CHANGEABLE], &cddvd_page_changeable, 4292 sizeof(cddvd_page_changeable)); 4293 memcpy(&lun->mode_pages.cddvd_page[CTL_PAGE_SAVED], 4294 &cddvd_page_default, 4295 sizeof(cddvd_page_default)); 4296 memcpy(&lun->mode_pages.cddvd_page[CTL_PAGE_CURRENT], 4297 &lun->mode_pages.cddvd_page[CTL_PAGE_SAVED], 4298 sizeof(cddvd_page_default)); 4299 page_index->page_data = 4300 (uint8_t *)lun->mode_pages.cddvd_page; 4301 break; 4302 } 4303 default: 4304 panic("invalid page code value %#x", page_code); 4305 } 4306 } 4307 4308 return (CTL_RETVAL_COMPLETE); 4309} 4310 4311static int 4312ctl_init_log_page_index(struct ctl_lun *lun) 4313{ 4314 struct ctl_page_index *page_index; 4315 int i, j, k, prev; 4316 4317 memcpy(&lun->log_pages.index, log_page_index_template, 4318 sizeof(log_page_index_template)); 4319 4320 prev = -1; 4321 for (i = 0, j = 0, k = 0; i < CTL_NUM_LOG_PAGES; i++) { 4322 4323 page_index = &lun->log_pages.index[i]; 4324 if (lun->be_lun->lun_type == T_DIRECT && 4325 (page_index->page_flags & CTL_PAGE_FLAG_DIRECT) == 0) 4326 continue; 4327 if (lun->be_lun->lun_type == T_PROCESSOR && 4328 (page_index->page_flags & CTL_PAGE_FLAG_PROC) == 0) 4329 continue; 4330 if (lun->be_lun->lun_type == T_CDROM && 4331 (page_index->page_flags & CTL_PAGE_FLAG_CDROM) == 0) 4332 continue; 4333 4334 if (page_index->page_code == SLS_LOGICAL_BLOCK_PROVISIONING && 4335 lun->backend->lun_attr == NULL) 4336 continue; 4337 4338 if (page_index->page_code != prev) { 4339 lun->log_pages.pages_page[j] = page_index->page_code; 4340 prev = page_index->page_code; 4341 j++; 4342 } 4343 lun->log_pages.subpages_page[k*2] = page_index->page_code; 4344 lun->log_pages.subpages_page[k*2+1] = page_index->subpage; 4345 k++; 4346 } 4347 lun->log_pages.index[0].page_data = &lun->log_pages.pages_page[0]; 4348 lun->log_pages.index[0].page_len = j; 4349 lun->log_pages.index[1].page_data = &lun->log_pages.subpages_page[0]; 4350 lun->log_pages.index[1].page_len = k * 2; 4351 lun->log_pages.index[2].page_data = &lun->log_pages.lbp_page[0]; 4352 lun->log_pages.index[2].page_len = 12*CTL_NUM_LBP_PARAMS; 4353 lun->log_pages.index[3].page_data = (uint8_t *)&lun->log_pages.stat_page; 4354 lun->log_pages.index[3].page_len = sizeof(lun->log_pages.stat_page); 4355 lun->log_pages.index[4].page_data = (uint8_t *)&lun->log_pages.ie_page; 4356 lun->log_pages.index[4].page_len = sizeof(lun->log_pages.ie_page); 4357 4358 return (CTL_RETVAL_COMPLETE); 4359} 4360 4361static int 4362hex2bin(const char *str, uint8_t *buf, int buf_size) 4363{ 4364 int i; 4365 u_char c; 4366 4367 memset(buf, 0, buf_size); 4368 while (isspace(str[0])) 4369 str++; 4370 if (str[0] == '0' && (str[1] == 'x' || str[1] == 'X')) 4371 str += 2; 4372 buf_size *= 2; 4373 for (i = 0; str[i] != 0 && i < buf_size; i++) { 4374 c = str[i]; 4375 if (isdigit(c)) 4376 c -= '0'; 4377 else if (isalpha(c)) 4378 c -= isupper(c) ? 'A' - 10 : 'a' - 10; 4379 else 4380 break; 4381 if (c >= 16) 4382 break; 4383 if ((i & 1) == 0) 4384 buf[i / 2] |= (c << 4); 4385 else 4386 buf[i / 2] |= c; 4387 } 4388 return ((i + 1) / 2); 4389} 4390 4391/* 4392 * LUN allocation. 4393 * 4394 * Requirements: 4395 * - caller allocates and zeros LUN storage, or passes in a NULL LUN if he 4396 * wants us to allocate the LUN and he can block. 4397 * - ctl_softc is always set 4398 * - be_lun is set if the LUN has a backend (needed for disk LUNs) 4399 * 4400 * Returns 0 for success, non-zero (errno) for failure. 4401 */ 4402static int 4403ctl_alloc_lun(struct ctl_softc *ctl_softc, struct ctl_lun *ctl_lun, 4404 struct ctl_be_lun *const be_lun) 4405{ 4406 struct ctl_lun *nlun, *lun; 4407 struct scsi_vpd_id_descriptor *desc; 4408 struct scsi_vpd_id_t10 *t10id; 4409 const char *eui, *naa, *scsiname, *vendor, *value; 4410 int lun_number, i, lun_malloced; 4411 int devidlen, idlen1, idlen2 = 0, len; 4412 4413 if (be_lun == NULL) 4414 return (EINVAL); 4415 4416 /* 4417 * We currently only support Direct Access or Processor LUN types. 4418 */ 4419 switch (be_lun->lun_type) { 4420 case T_DIRECT: 4421 case T_PROCESSOR: 4422 case T_CDROM: 4423 break; 4424 case T_SEQUENTIAL: 4425 case T_CHANGER: 4426 default: 4427 be_lun->lun_config_status(be_lun->be_lun, 4428 CTL_LUN_CONFIG_FAILURE); 4429 break; 4430 } 4431 if (ctl_lun == NULL) { 4432 lun = malloc(sizeof(*lun), M_CTL, M_WAITOK); 4433 lun_malloced = 1; 4434 } else { 4435 lun_malloced = 0; 4436 lun = ctl_lun; 4437 } 4438 4439 memset(lun, 0, sizeof(*lun)); 4440 if (lun_malloced) 4441 lun->flags = CTL_LUN_MALLOCED; 4442 4443 /* Generate LUN ID. */ 4444 devidlen = max(CTL_DEVID_MIN_LEN, 4445 strnlen(be_lun->device_id, CTL_DEVID_LEN)); 4446 idlen1 = sizeof(*t10id) + devidlen; 4447 len = sizeof(struct scsi_vpd_id_descriptor) + idlen1; 4448 scsiname = ctl_get_opt(&be_lun->options, "scsiname"); 4449 if (scsiname != NULL) { 4450 idlen2 = roundup2(strlen(scsiname) + 1, 4); 4451 len += sizeof(struct scsi_vpd_id_descriptor) + idlen2; 4452 } 4453 eui = ctl_get_opt(&be_lun->options, "eui"); 4454 if (eui != NULL) { 4455 len += sizeof(struct scsi_vpd_id_descriptor) + 16; 4456 } 4457 naa = ctl_get_opt(&be_lun->options, "naa"); 4458 if (naa != NULL) { 4459 len += sizeof(struct scsi_vpd_id_descriptor) + 16; 4460 } 4461 lun->lun_devid = malloc(sizeof(struct ctl_devid) + len, 4462 M_CTL, M_WAITOK | M_ZERO); 4463 desc = (struct scsi_vpd_id_descriptor *)lun->lun_devid->data; 4464 desc->proto_codeset = SVPD_ID_CODESET_ASCII; 4465 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | SVPD_ID_TYPE_T10; 4466 desc->length = idlen1; 4467 t10id = (struct scsi_vpd_id_t10 *)&desc->identifier[0]; 4468 memset(t10id->vendor, ' ', sizeof(t10id->vendor)); 4469 if ((vendor = ctl_get_opt(&be_lun->options, "vendor")) == NULL) { 4470 strncpy((char *)t10id->vendor, CTL_VENDOR, sizeof(t10id->vendor)); 4471 } else { 4472 strncpy(t10id->vendor, vendor, 4473 min(sizeof(t10id->vendor), strlen(vendor))); 4474 } 4475 strncpy((char *)t10id->vendor_spec_id, 4476 (char *)be_lun->device_id, devidlen); 4477 if (scsiname != NULL) { 4478 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 4479 desc->length); 4480 desc->proto_codeset = SVPD_ID_CODESET_UTF8; 4481 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | 4482 SVPD_ID_TYPE_SCSI_NAME; 4483 desc->length = idlen2; 4484 strlcpy(desc->identifier, scsiname, idlen2); 4485 } 4486 if (eui != NULL) { 4487 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 4488 desc->length); 4489 desc->proto_codeset = SVPD_ID_CODESET_BINARY; 4490 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | 4491 SVPD_ID_TYPE_EUI64; 4492 desc->length = hex2bin(eui, desc->identifier, 16); 4493 desc->length = desc->length > 12 ? 16 : 4494 (desc->length > 8 ? 12 : 8); 4495 len -= 16 - desc->length; 4496 } 4497 if (naa != NULL) { 4498 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 4499 desc->length); 4500 desc->proto_codeset = SVPD_ID_CODESET_BINARY; 4501 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | 4502 SVPD_ID_TYPE_NAA; 4503 desc->length = hex2bin(naa, desc->identifier, 16); 4504 desc->length = desc->length > 8 ? 16 : 8; 4505 len -= 16 - desc->length; 4506 } 4507 lun->lun_devid->len = len; 4508 4509 mtx_lock(&ctl_softc->ctl_lock); 4510 /* 4511 * See if the caller requested a particular LUN number. If so, see 4512 * if it is available. Otherwise, allocate the first available LUN. 4513 */ 4514 if (be_lun->flags & CTL_LUN_FLAG_ID_REQ) { 4515 if ((be_lun->req_lun_id > (CTL_MAX_LUNS - 1)) 4516 || (ctl_is_set(ctl_softc->ctl_lun_mask, be_lun->req_lun_id))) { 4517 mtx_unlock(&ctl_softc->ctl_lock); 4518 if (be_lun->req_lun_id > (CTL_MAX_LUNS - 1)) { 4519 printf("ctl: requested LUN ID %d is higher " 4520 "than CTL_MAX_LUNS - 1 (%d)\n", 4521 be_lun->req_lun_id, CTL_MAX_LUNS - 1); 4522 } else { 4523 /* 4524 * XXX KDM return an error, or just assign 4525 * another LUN ID in this case?? 4526 */ 4527 printf("ctl: requested LUN ID %d is already " 4528 "in use\n", be_lun->req_lun_id); 4529 } 4530 if (lun->flags & CTL_LUN_MALLOCED) 4531 free(lun, M_CTL); 4532 be_lun->lun_config_status(be_lun->be_lun, 4533 CTL_LUN_CONFIG_FAILURE); 4534 return (ENOSPC); 4535 } 4536 lun_number = be_lun->req_lun_id; 4537 } else { 4538 lun_number = ctl_ffz(ctl_softc->ctl_lun_mask, 0, CTL_MAX_LUNS); 4539 if (lun_number == -1) { 4540 mtx_unlock(&ctl_softc->ctl_lock); 4541 printf("ctl: can't allocate LUN, out of LUNs\n"); 4542 if (lun->flags & CTL_LUN_MALLOCED) 4543 free(lun, M_CTL); 4544 be_lun->lun_config_status(be_lun->be_lun, 4545 CTL_LUN_CONFIG_FAILURE); 4546 return (ENOSPC); 4547 } 4548 } 4549 ctl_set_mask(ctl_softc->ctl_lun_mask, lun_number); 4550 4551 mtx_init(&lun->lun_lock, "CTL LUN", NULL, MTX_DEF); 4552 lun->lun = lun_number; 4553 lun->be_lun = be_lun; 4554 /* 4555 * The processor LUN is always enabled. Disk LUNs come on line 4556 * disabled, and must be enabled by the backend. 4557 */ 4558 lun->flags |= CTL_LUN_DISABLED; 4559 lun->backend = be_lun->be; 4560 be_lun->ctl_lun = lun; 4561 be_lun->lun_id = lun_number; 4562 atomic_add_int(&be_lun->be->num_luns, 1); 4563 if (be_lun->flags & CTL_LUN_FLAG_EJECTED) 4564 lun->flags |= CTL_LUN_EJECTED; 4565 if (be_lun->flags & CTL_LUN_FLAG_NO_MEDIA) 4566 lun->flags |= CTL_LUN_NO_MEDIA; 4567 if (be_lun->flags & CTL_LUN_FLAG_STOPPED) 4568 lun->flags |= CTL_LUN_STOPPED; 4569 4570 if (be_lun->flags & CTL_LUN_FLAG_PRIMARY) 4571 lun->flags |= CTL_LUN_PRIMARY_SC; 4572 4573 value = ctl_get_opt(&be_lun->options, "removable"); 4574 if (value != NULL) { 4575 if (strcmp(value, "on") == 0) 4576 lun->flags |= CTL_LUN_REMOVABLE; 4577 } else if (be_lun->lun_type == T_CDROM) 4578 lun->flags |= CTL_LUN_REMOVABLE; 4579 4580 lun->ctl_softc = ctl_softc; 4581#ifdef CTL_TIME_IO 4582 lun->last_busy = getsbinuptime(); 4583#endif 4584 TAILQ_INIT(&lun->ooa_queue); 4585 TAILQ_INIT(&lun->blocked_queue); 4586 STAILQ_INIT(&lun->error_list); 4587 lun->ie_reported = 1; 4588 callout_init_mtx(&lun->ie_callout, &lun->lun_lock, 0); 4589 ctl_tpc_lun_init(lun); 4590 4591 /* 4592 * Initialize the mode and log page index. 4593 */ 4594 ctl_init_page_index(lun); 4595 ctl_init_log_page_index(lun); 4596 4597 /* 4598 * Now, before we insert this lun on the lun list, set the lun 4599 * inventory changed UA for all other luns. 4600 */ 4601 STAILQ_FOREACH(nlun, &ctl_softc->lun_list, links) { 4602 mtx_lock(&nlun->lun_lock); 4603 ctl_est_ua_all(nlun, -1, CTL_UA_LUN_CHANGE); 4604 mtx_unlock(&nlun->lun_lock); 4605 } 4606 4607 STAILQ_INSERT_TAIL(&ctl_softc->lun_list, lun, links); 4608 4609 ctl_softc->ctl_luns[lun_number] = lun; 4610 4611 ctl_softc->num_luns++; 4612 4613 /* Setup statistics gathering */ 4614 lun->stats.device_type = be_lun->lun_type; 4615 lun->stats.lun_number = lun_number; 4616 lun->stats.blocksize = be_lun->blocksize; 4617 if (be_lun->blocksize == 0) 4618 lun->stats.flags = CTL_LUN_STATS_NO_BLOCKSIZE; 4619 for (i = 0;i < CTL_MAX_PORTS;i++) 4620 lun->stats.ports[i].targ_port = i; 4621 4622 mtx_unlock(&ctl_softc->ctl_lock); 4623 4624 lun->be_lun->lun_config_status(lun->be_lun->be_lun, CTL_LUN_CONFIG_OK); 4625 return (0); 4626} 4627 4628/* 4629 * Delete a LUN. 4630 * Assumptions: 4631 * - LUN has already been marked invalid and any pending I/O has been taken 4632 * care of. 4633 */ 4634static int 4635ctl_free_lun(struct ctl_lun *lun) 4636{ 4637 struct ctl_softc *softc; 4638 struct ctl_lun *nlun; 4639 int i; 4640 4641 softc = lun->ctl_softc; 4642 4643 mtx_assert(&softc->ctl_lock, MA_OWNED); 4644 4645 STAILQ_REMOVE(&softc->lun_list, lun, ctl_lun, links); 4646 4647 ctl_clear_mask(softc->ctl_lun_mask, lun->lun); 4648 4649 softc->ctl_luns[lun->lun] = NULL; 4650 4651 if (!TAILQ_EMPTY(&lun->ooa_queue)) 4652 panic("Freeing a LUN %p with outstanding I/O!!\n", lun); 4653 4654 softc->num_luns--; 4655 4656 /* 4657 * Tell the backend to free resources, if this LUN has a backend. 4658 */ 4659 atomic_subtract_int(&lun->be_lun->be->num_luns, 1); 4660 lun->be_lun->lun_shutdown(lun->be_lun->be_lun); 4661 4662 lun->ie_reportcnt = UINT32_MAX; 4663 callout_drain(&lun->ie_callout); 4664 4665 ctl_tpc_lun_shutdown(lun); 4666 mtx_destroy(&lun->lun_lock); 4667 free(lun->lun_devid, M_CTL); 4668 for (i = 0; i < CTL_MAX_PORTS; i++) 4669 free(lun->pending_ua[i], M_CTL); 4670 for (i = 0; i < CTL_MAX_PORTS; i++) 4671 free(lun->pr_keys[i], M_CTL); 4672 free(lun->write_buffer, M_CTL); 4673 if (lun->flags & CTL_LUN_MALLOCED) 4674 free(lun, M_CTL); 4675 4676 STAILQ_FOREACH(nlun, &softc->lun_list, links) { 4677 mtx_lock(&nlun->lun_lock); 4678 ctl_est_ua_all(nlun, -1, CTL_UA_LUN_CHANGE); 4679 mtx_unlock(&nlun->lun_lock); 4680 } 4681 4682 return (0); 4683} 4684 4685static void 4686ctl_create_lun(struct ctl_be_lun *be_lun) 4687{ 4688 4689 /* 4690 * ctl_alloc_lun() should handle all potential failure cases. 4691 */ 4692 ctl_alloc_lun(control_softc, NULL, be_lun); 4693} 4694 4695int 4696ctl_add_lun(struct ctl_be_lun *be_lun) 4697{ 4698 struct ctl_softc *softc = control_softc; 4699 4700 mtx_lock(&softc->ctl_lock); 4701 STAILQ_INSERT_TAIL(&softc->pending_lun_queue, be_lun, links); 4702 mtx_unlock(&softc->ctl_lock); 4703 wakeup(&softc->pending_lun_queue); 4704 4705 return (0); 4706} 4707 4708int 4709ctl_enable_lun(struct ctl_be_lun *be_lun) 4710{ 4711 struct ctl_softc *softc; 4712 struct ctl_port *port, *nport; 4713 struct ctl_lun *lun; 4714 int retval; 4715 4716 lun = (struct ctl_lun *)be_lun->ctl_lun; 4717 softc = lun->ctl_softc; 4718 4719 mtx_lock(&softc->ctl_lock); 4720 mtx_lock(&lun->lun_lock); 4721 if ((lun->flags & CTL_LUN_DISABLED) == 0) { 4722 /* 4723 * eh? Why did we get called if the LUN is already 4724 * enabled? 4725 */ 4726 mtx_unlock(&lun->lun_lock); 4727 mtx_unlock(&softc->ctl_lock); 4728 return (0); 4729 } 4730 lun->flags &= ~CTL_LUN_DISABLED; 4731 mtx_unlock(&lun->lun_lock); 4732 4733 STAILQ_FOREACH_SAFE(port, &softc->port_list, links, nport) { 4734 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0 || 4735 port->lun_map != NULL || port->lun_enable == NULL) 4736 continue; 4737 4738 /* 4739 * Drop the lock while we call the FETD's enable routine. 4740 * This can lead to a callback into CTL (at least in the 4741 * case of the internal initiator frontend. 4742 */ 4743 mtx_unlock(&softc->ctl_lock); 4744 retval = port->lun_enable(port->targ_lun_arg, lun->lun); 4745 mtx_lock(&softc->ctl_lock); 4746 if (retval != 0) { 4747 printf("%s: FETD %s port %d returned error " 4748 "%d for lun_enable on lun %jd\n", 4749 __func__, port->port_name, port->targ_port, 4750 retval, (intmax_t)lun->lun); 4751 } 4752 } 4753 4754 mtx_unlock(&softc->ctl_lock); 4755 ctl_isc_announce_lun(lun); 4756 4757 return (0); 4758} 4759 4760int 4761ctl_disable_lun(struct ctl_be_lun *be_lun) 4762{ 4763 struct ctl_softc *softc; 4764 struct ctl_port *port; 4765 struct ctl_lun *lun; 4766 int retval; 4767 4768 lun = (struct ctl_lun *)be_lun->ctl_lun; 4769 softc = lun->ctl_softc; 4770 4771 mtx_lock(&softc->ctl_lock); 4772 mtx_lock(&lun->lun_lock); 4773 if (lun->flags & CTL_LUN_DISABLED) { 4774 mtx_unlock(&lun->lun_lock); 4775 mtx_unlock(&softc->ctl_lock); 4776 return (0); 4777 } 4778 lun->flags |= CTL_LUN_DISABLED; 4779 mtx_unlock(&lun->lun_lock); 4780 4781 STAILQ_FOREACH(port, &softc->port_list, links) { 4782 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0 || 4783 port->lun_map != NULL || port->lun_disable == NULL) 4784 continue; 4785 4786 /* 4787 * Drop the lock before we call the frontend's disable 4788 * routine, to avoid lock order reversals. 4789 * 4790 * XXX KDM what happens if the frontend list changes while 4791 * we're traversing it? It's unlikely, but should be handled. 4792 */ 4793 mtx_unlock(&softc->ctl_lock); 4794 retval = port->lun_disable(port->targ_lun_arg, lun->lun); 4795 mtx_lock(&softc->ctl_lock); 4796 if (retval != 0) { 4797 printf("%s: FETD %s port %d returned error " 4798 "%d for lun_disable on lun %jd\n", 4799 __func__, port->port_name, port->targ_port, 4800 retval, (intmax_t)lun->lun); 4801 } 4802 } 4803 4804 mtx_unlock(&softc->ctl_lock); 4805 ctl_isc_announce_lun(lun); 4806 4807 return (0); 4808} 4809 4810int 4811ctl_start_lun(struct ctl_be_lun *be_lun) 4812{ 4813 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 4814 4815 mtx_lock(&lun->lun_lock); 4816 lun->flags &= ~CTL_LUN_STOPPED; 4817 mtx_unlock(&lun->lun_lock); 4818 return (0); 4819} 4820 4821int 4822ctl_stop_lun(struct ctl_be_lun *be_lun) 4823{ 4824 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 4825 4826 mtx_lock(&lun->lun_lock); 4827 lun->flags |= CTL_LUN_STOPPED; 4828 mtx_unlock(&lun->lun_lock); 4829 return (0); 4830} 4831 4832int 4833ctl_lun_no_media(struct ctl_be_lun *be_lun) 4834{ 4835 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 4836 4837 mtx_lock(&lun->lun_lock); 4838 lun->flags |= CTL_LUN_NO_MEDIA; 4839 mtx_unlock(&lun->lun_lock); 4840 return (0); 4841} 4842 4843int 4844ctl_lun_has_media(struct ctl_be_lun *be_lun) 4845{ 4846 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 4847 union ctl_ha_msg msg; 4848 4849 mtx_lock(&lun->lun_lock); 4850 lun->flags &= ~(CTL_LUN_NO_MEDIA | CTL_LUN_EJECTED); 4851 if (lun->flags & CTL_LUN_REMOVABLE) 4852 ctl_est_ua_all(lun, -1, CTL_UA_MEDIUM_CHANGE); 4853 mtx_unlock(&lun->lun_lock); 4854 if ((lun->flags & CTL_LUN_REMOVABLE) && 4855 lun->ctl_softc->ha_mode == CTL_HA_MODE_XFER) { 4856 bzero(&msg.ua, sizeof(msg.ua)); 4857 msg.hdr.msg_type = CTL_MSG_UA; 4858 msg.hdr.nexus.initid = -1; 4859 msg.hdr.nexus.targ_port = -1; 4860 msg.hdr.nexus.targ_lun = lun->lun; 4861 msg.hdr.nexus.targ_mapped_lun = lun->lun; 4862 msg.ua.ua_all = 1; 4863 msg.ua.ua_set = 1; 4864 msg.ua.ua_type = CTL_UA_MEDIUM_CHANGE; 4865 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, sizeof(msg.ua), 4866 M_WAITOK); 4867 } 4868 return (0); 4869} 4870 4871int 4872ctl_lun_ejected(struct ctl_be_lun *be_lun) 4873{ 4874 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 4875 4876 mtx_lock(&lun->lun_lock); 4877 lun->flags |= CTL_LUN_EJECTED; 4878 mtx_unlock(&lun->lun_lock); 4879 return (0); 4880} 4881 4882int 4883ctl_lun_primary(struct ctl_be_lun *be_lun) 4884{ 4885 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 4886 4887 mtx_lock(&lun->lun_lock); 4888 lun->flags |= CTL_LUN_PRIMARY_SC; 4889 ctl_est_ua_all(lun, -1, CTL_UA_ASYM_ACC_CHANGE); 4890 mtx_unlock(&lun->lun_lock); 4891 ctl_isc_announce_lun(lun); 4892 return (0); 4893} 4894 4895int 4896ctl_lun_secondary(struct ctl_be_lun *be_lun) 4897{ 4898 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 4899 4900 mtx_lock(&lun->lun_lock); 4901 lun->flags &= ~CTL_LUN_PRIMARY_SC; 4902 ctl_est_ua_all(lun, -1, CTL_UA_ASYM_ACC_CHANGE); 4903 mtx_unlock(&lun->lun_lock); 4904 ctl_isc_announce_lun(lun); 4905 return (0); 4906} 4907 4908int 4909ctl_invalidate_lun(struct ctl_be_lun *be_lun) 4910{ 4911 struct ctl_softc *softc; 4912 struct ctl_lun *lun; 4913 4914 lun = (struct ctl_lun *)be_lun->ctl_lun; 4915 softc = lun->ctl_softc; 4916 4917 mtx_lock(&lun->lun_lock); 4918 4919 /* 4920 * The LUN needs to be disabled before it can be marked invalid. 4921 */ 4922 if ((lun->flags & CTL_LUN_DISABLED) == 0) { 4923 mtx_unlock(&lun->lun_lock); 4924 return (-1); 4925 } 4926 /* 4927 * Mark the LUN invalid. 4928 */ 4929 lun->flags |= CTL_LUN_INVALID; 4930 4931 /* 4932 * If there is nothing in the OOA queue, go ahead and free the LUN. 4933 * If we have something in the OOA queue, we'll free it when the 4934 * last I/O completes. 4935 */ 4936 if (TAILQ_EMPTY(&lun->ooa_queue)) { 4937 mtx_unlock(&lun->lun_lock); 4938 mtx_lock(&softc->ctl_lock); 4939 ctl_free_lun(lun); 4940 mtx_unlock(&softc->ctl_lock); 4941 } else 4942 mtx_unlock(&lun->lun_lock); 4943 4944 return (0); 4945} 4946 4947void 4948ctl_lun_capacity_changed(struct ctl_be_lun *be_lun) 4949{ 4950 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 4951 union ctl_ha_msg msg; 4952 4953 mtx_lock(&lun->lun_lock); 4954 ctl_est_ua_all(lun, -1, CTL_UA_CAPACITY_CHANGE); 4955 mtx_unlock(&lun->lun_lock); 4956 if (lun->ctl_softc->ha_mode == CTL_HA_MODE_XFER) { 4957 /* Send msg to other side. */ 4958 bzero(&msg.ua, sizeof(msg.ua)); 4959 msg.hdr.msg_type = CTL_MSG_UA; 4960 msg.hdr.nexus.initid = -1; 4961 msg.hdr.nexus.targ_port = -1; 4962 msg.hdr.nexus.targ_lun = lun->lun; 4963 msg.hdr.nexus.targ_mapped_lun = lun->lun; 4964 msg.ua.ua_all = 1; 4965 msg.ua.ua_set = 1; 4966 msg.ua.ua_type = CTL_UA_CAPACITY_CHANGE; 4967 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, sizeof(msg.ua), 4968 M_WAITOK); 4969 } 4970} 4971 4972/* 4973 * Backend "memory move is complete" callback for requests that never 4974 * make it down to say RAIDCore's configuration code. 4975 */ 4976int 4977ctl_config_move_done(union ctl_io *io) 4978{ 4979 int retval; 4980 4981 CTL_DEBUG_PRINT(("ctl_config_move_done\n")); 4982 KASSERT(io->io_hdr.io_type == CTL_IO_SCSI, 4983 ("Config I/O type isn't CTL_IO_SCSI (%d)!", io->io_hdr.io_type)); 4984 4985 if ((io->io_hdr.port_status != 0) && 4986 ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE || 4987 (io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS)) { 4988 /* 4989 * For hardware error sense keys, the sense key 4990 * specific value is defined to be a retry count, 4991 * but we use it to pass back an internal FETD 4992 * error code. XXX KDM Hopefully the FETD is only 4993 * using 16 bits for an error code, since that's 4994 * all the space we have in the sks field. 4995 */ 4996 ctl_set_internal_failure(&io->scsiio, 4997 /*sks_valid*/ 1, 4998 /*retry_count*/ 4999 io->io_hdr.port_status); 5000 } 5001 5002 if (ctl_debug & CTL_DEBUG_CDB_DATA) 5003 ctl_data_print(io); 5004 if (((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_IN) || 5005 ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE && 5006 (io->io_hdr.status & CTL_STATUS_MASK) != CTL_SUCCESS) || 5007 ((io->io_hdr.flags & CTL_FLAG_ABORT) != 0)) { 5008 /* 5009 * XXX KDM just assuming a single pointer here, and not a 5010 * S/G list. If we start using S/G lists for config data, 5011 * we'll need to know how to clean them up here as well. 5012 */ 5013 if (io->io_hdr.flags & CTL_FLAG_ALLOCATED) 5014 free(io->scsiio.kern_data_ptr, M_CTL); 5015 ctl_done(io); 5016 retval = CTL_RETVAL_COMPLETE; 5017 } else { 5018 /* 5019 * XXX KDM now we need to continue data movement. Some 5020 * options: 5021 * - call ctl_scsiio() again? We don't do this for data 5022 * writes, because for those at least we know ahead of 5023 * time where the write will go and how long it is. For 5024 * config writes, though, that information is largely 5025 * contained within the write itself, thus we need to 5026 * parse out the data again. 5027 * 5028 * - Call some other function once the data is in? 5029 */ 5030 5031 /* 5032 * XXX KDM call ctl_scsiio() again for now, and check flag 5033 * bits to see whether we're allocated or not. 5034 */ 5035 retval = ctl_scsiio(&io->scsiio); 5036 } 5037 return (retval); 5038} 5039 5040/* 5041 * This gets called by a backend driver when it is done with a 5042 * data_submit method. 5043 */ 5044void 5045ctl_data_submit_done(union ctl_io *io) 5046{ 5047 /* 5048 * If the IO_CONT flag is set, we need to call the supplied 5049 * function to continue processing the I/O, instead of completing 5050 * the I/O just yet. 5051 * 5052 * If there is an error, though, we don't want to keep processing. 5053 * Instead, just send status back to the initiator. 5054 */ 5055 if ((io->io_hdr.flags & CTL_FLAG_IO_CONT) && 5056 (io->io_hdr.flags & CTL_FLAG_ABORT) == 0 && 5057 ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE || 5058 (io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS)) { 5059 io->scsiio.io_cont(io); 5060 return; 5061 } 5062 ctl_done(io); 5063} 5064 5065/* 5066 * This gets called by a backend driver when it is done with a 5067 * configuration write. 5068 */ 5069void 5070ctl_config_write_done(union ctl_io *io) 5071{ 5072 uint8_t *buf; 5073 5074 /* 5075 * If the IO_CONT flag is set, we need to call the supplied 5076 * function to continue processing the I/O, instead of completing 5077 * the I/O just yet. 5078 * 5079 * If there is an error, though, we don't want to keep processing. 5080 * Instead, just send status back to the initiator. 5081 */ 5082 if ((io->io_hdr.flags & CTL_FLAG_IO_CONT) && 5083 (io->io_hdr.flags & CTL_FLAG_ABORT) == 0 && 5084 ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE || 5085 (io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS)) { 5086 io->scsiio.io_cont(io); 5087 return; 5088 } 5089 /* 5090 * Since a configuration write can be done for commands that actually 5091 * have data allocated, like write buffer, and commands that have 5092 * no data, like start/stop unit, we need to check here. 5093 */ 5094 if (io->io_hdr.flags & CTL_FLAG_ALLOCATED) 5095 buf = io->scsiio.kern_data_ptr; 5096 else 5097 buf = NULL; 5098 ctl_done(io); 5099 if (buf) 5100 free(buf, M_CTL); 5101} 5102 5103void 5104ctl_config_read_done(union ctl_io *io) 5105{ 5106 uint8_t *buf; 5107 5108 /* 5109 * If there is some error -- we are done, skip data transfer. 5110 */ 5111 if ((io->io_hdr.flags & CTL_FLAG_ABORT) != 0 || 5112 ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE && 5113 (io->io_hdr.status & CTL_STATUS_MASK) != CTL_SUCCESS)) { 5114 if (io->io_hdr.flags & CTL_FLAG_ALLOCATED) 5115 buf = io->scsiio.kern_data_ptr; 5116 else 5117 buf = NULL; 5118 ctl_done(io); 5119 if (buf) 5120 free(buf, M_CTL); 5121 return; 5122 } 5123 5124 /* 5125 * If the IO_CONT flag is set, we need to call the supplied 5126 * function to continue processing the I/O, instead of completing 5127 * the I/O just yet. 5128 */ 5129 if (io->io_hdr.flags & CTL_FLAG_IO_CONT) { 5130 io->scsiio.io_cont(io); 5131 return; 5132 } 5133 5134 ctl_datamove(io); 5135} 5136 5137/* 5138 * SCSI release command. 5139 */ 5140int 5141ctl_scsi_release(struct ctl_scsiio *ctsio) 5142{ 5143 struct ctl_lun *lun; 5144 uint32_t residx; 5145 5146 CTL_DEBUG_PRINT(("ctl_scsi_release\n")); 5147 5148 residx = ctl_get_initindex(&ctsio->io_hdr.nexus); 5149 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5150 5151 /* 5152 * XXX KDM right now, we only support LUN reservation. We don't 5153 * support 3rd party reservations, or extent reservations, which 5154 * might actually need the parameter list. If we've gotten this 5155 * far, we've got a LUN reservation. Anything else got kicked out 5156 * above. So, according to SPC, ignore the length. 5157 */ 5158 5159 mtx_lock(&lun->lun_lock); 5160 5161 /* 5162 * According to SPC, it is not an error for an intiator to attempt 5163 * to release a reservation on a LUN that isn't reserved, or that 5164 * is reserved by another initiator. The reservation can only be 5165 * released, though, by the initiator who made it or by one of 5166 * several reset type events. 5167 */ 5168 if ((lun->flags & CTL_LUN_RESERVED) && (lun->res_idx == residx)) 5169 lun->flags &= ~CTL_LUN_RESERVED; 5170 5171 mtx_unlock(&lun->lun_lock); 5172 5173 ctl_set_success(ctsio); 5174 ctl_done((union ctl_io *)ctsio); 5175 return (CTL_RETVAL_COMPLETE); 5176} 5177 5178int 5179ctl_scsi_reserve(struct ctl_scsiio *ctsio) 5180{ 5181 struct ctl_lun *lun; 5182 uint32_t residx; 5183 5184 CTL_DEBUG_PRINT(("ctl_reserve\n")); 5185 5186 residx = ctl_get_initindex(&ctsio->io_hdr.nexus); 5187 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5188 5189 /* 5190 * XXX KDM right now, we only support LUN reservation. We don't 5191 * support 3rd party reservations, or extent reservations, which 5192 * might actually need the parameter list. If we've gotten this 5193 * far, we've got a LUN reservation. Anything else got kicked out 5194 * above. So, according to SPC, ignore the length. 5195 */ 5196 5197 mtx_lock(&lun->lun_lock); 5198 if ((lun->flags & CTL_LUN_RESERVED) && (lun->res_idx != residx)) { 5199 ctl_set_reservation_conflict(ctsio); 5200 goto bailout; 5201 } 5202 5203 /* SPC-3 exceptions to SPC-2 RESERVE and RELEASE behavior. */ 5204 if (lun->flags & CTL_LUN_PR_RESERVED) { 5205 ctl_set_success(ctsio); 5206 goto bailout; 5207 } 5208 5209 lun->flags |= CTL_LUN_RESERVED; 5210 lun->res_idx = residx; 5211 ctl_set_success(ctsio); 5212 5213bailout: 5214 mtx_unlock(&lun->lun_lock); 5215 ctl_done((union ctl_io *)ctsio); 5216 return (CTL_RETVAL_COMPLETE); 5217} 5218 5219int 5220ctl_start_stop(struct ctl_scsiio *ctsio) 5221{ 5222 struct scsi_start_stop_unit *cdb; 5223 struct ctl_lun *lun; 5224 int retval; 5225 5226 CTL_DEBUG_PRINT(("ctl_start_stop\n")); 5227 5228 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5229 cdb = (struct scsi_start_stop_unit *)ctsio->cdb; 5230 5231 if ((cdb->how & SSS_PC_MASK) == 0) { 5232 if ((lun->flags & CTL_LUN_PR_RESERVED) && 5233 (cdb->how & SSS_START) == 0) { 5234 uint32_t residx; 5235 5236 residx = ctl_get_initindex(&ctsio->io_hdr.nexus); 5237 if (ctl_get_prkey(lun, residx) == 0 || 5238 (lun->pr_res_idx != residx && lun->pr_res_type < 4)) { 5239 5240 ctl_set_reservation_conflict(ctsio); 5241 ctl_done((union ctl_io *)ctsio); 5242 return (CTL_RETVAL_COMPLETE); 5243 } 5244 } 5245 5246 if ((cdb->how & SSS_LOEJ) && 5247 (lun->flags & CTL_LUN_REMOVABLE) == 0) { 5248 ctl_set_invalid_field(ctsio, 5249 /*sks_valid*/ 1, 5250 /*command*/ 1, 5251 /*field*/ 4, 5252 /*bit_valid*/ 1, 5253 /*bit*/ 1); 5254 ctl_done((union ctl_io *)ctsio); 5255 return (CTL_RETVAL_COMPLETE); 5256 } 5257 5258 if ((cdb->how & SSS_START) == 0 && (cdb->how & SSS_LOEJ) && 5259 lun->prevent_count > 0) { 5260 /* "Medium removal prevented" */ 5261 ctl_set_sense(ctsio, /*current_error*/ 1, 5262 /*sense_key*/(lun->flags & CTL_LUN_NO_MEDIA) ? 5263 SSD_KEY_NOT_READY : SSD_KEY_ILLEGAL_REQUEST, 5264 /*asc*/ 0x53, /*ascq*/ 0x02, SSD_ELEM_NONE); 5265 ctl_done((union ctl_io *)ctsio); 5266 return (CTL_RETVAL_COMPLETE); 5267 } 5268 } 5269 5270 retval = lun->backend->config_write((union ctl_io *)ctsio); 5271 return (retval); 5272} 5273 5274int 5275ctl_prevent_allow(struct ctl_scsiio *ctsio) 5276{ 5277 struct ctl_lun *lun; 5278 struct scsi_prevent *cdb; 5279 int retval; 5280 uint32_t initidx; 5281 5282 CTL_DEBUG_PRINT(("ctl_prevent_allow\n")); 5283 5284 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5285 cdb = (struct scsi_prevent *)ctsio->cdb; 5286 5287 if ((lun->flags & CTL_LUN_REMOVABLE) == 0) { 5288 ctl_set_invalid_opcode(ctsio); 5289 ctl_done((union ctl_io *)ctsio); 5290 return (CTL_RETVAL_COMPLETE); 5291 } 5292 5293 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 5294 mtx_lock(&lun->lun_lock); 5295 if ((cdb->how & PR_PREVENT) && 5296 ctl_is_set(lun->prevent, initidx) == 0) { 5297 ctl_set_mask(lun->prevent, initidx); 5298 lun->prevent_count++; 5299 } else if ((cdb->how & PR_PREVENT) == 0 && 5300 ctl_is_set(lun->prevent, initidx)) { 5301 ctl_clear_mask(lun->prevent, initidx); 5302 lun->prevent_count--; 5303 } 5304 mtx_unlock(&lun->lun_lock); 5305 retval = lun->backend->config_write((union ctl_io *)ctsio); 5306 return (retval); 5307} 5308 5309/* 5310 * We support the SYNCHRONIZE CACHE command (10 and 16 byte versions), but 5311 * we don't really do anything with the LBA and length fields if the user 5312 * passes them in. Instead we'll just flush out the cache for the entire 5313 * LUN. 5314 */ 5315int 5316ctl_sync_cache(struct ctl_scsiio *ctsio) 5317{ 5318 struct ctl_lun *lun; 5319 struct ctl_softc *softc; 5320 struct ctl_lba_len_flags *lbalen; 5321 uint64_t starting_lba; 5322 uint32_t block_count; 5323 int retval; 5324 uint8_t byte2; 5325 5326 CTL_DEBUG_PRINT(("ctl_sync_cache\n")); 5327 5328 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5329 softc = lun->ctl_softc; 5330 retval = 0; 5331 5332 switch (ctsio->cdb[0]) { 5333 case SYNCHRONIZE_CACHE: { 5334 struct scsi_sync_cache *cdb; 5335 cdb = (struct scsi_sync_cache *)ctsio->cdb; 5336 5337 starting_lba = scsi_4btoul(cdb->begin_lba); 5338 block_count = scsi_2btoul(cdb->lb_count); 5339 byte2 = cdb->byte2; 5340 break; 5341 } 5342 case SYNCHRONIZE_CACHE_16: { 5343 struct scsi_sync_cache_16 *cdb; 5344 cdb = (struct scsi_sync_cache_16 *)ctsio->cdb; 5345 5346 starting_lba = scsi_8btou64(cdb->begin_lba); 5347 block_count = scsi_4btoul(cdb->lb_count); 5348 byte2 = cdb->byte2; 5349 break; 5350 } 5351 default: 5352 ctl_set_invalid_opcode(ctsio); 5353 ctl_done((union ctl_io *)ctsio); 5354 goto bailout; 5355 break; /* NOTREACHED */ 5356 } 5357 5358 /* 5359 * We check the LBA and length, but don't do anything with them. 5360 * A SYNCHRONIZE CACHE will cause the entire cache for this lun to 5361 * get flushed. This check will just help satisfy anyone who wants 5362 * to see an error for an out of range LBA. 5363 */ 5364 if ((starting_lba + block_count) > (lun->be_lun->maxlba + 1)) { 5365 ctl_set_lba_out_of_range(ctsio); 5366 ctl_done((union ctl_io *)ctsio); 5367 goto bailout; 5368 } 5369 5370 lbalen = (struct ctl_lba_len_flags *)&ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 5371 lbalen->lba = starting_lba; 5372 lbalen->len = block_count; 5373 lbalen->flags = byte2; 5374 retval = lun->backend->config_write((union ctl_io *)ctsio); 5375 5376bailout: 5377 return (retval); 5378} 5379 5380int 5381ctl_format(struct ctl_scsiio *ctsio) 5382{ 5383 struct scsi_format *cdb; 5384 struct ctl_lun *lun; 5385 int length, defect_list_len; 5386 5387 CTL_DEBUG_PRINT(("ctl_format\n")); 5388 5389 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5390 5391 cdb = (struct scsi_format *)ctsio->cdb; 5392 5393 length = 0; 5394 if (cdb->byte2 & SF_FMTDATA) { 5395 if (cdb->byte2 & SF_LONGLIST) 5396 length = sizeof(struct scsi_format_header_long); 5397 else 5398 length = sizeof(struct scsi_format_header_short); 5399 } 5400 5401 if (((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) 5402 && (length > 0)) { 5403 ctsio->kern_data_ptr = malloc(length, M_CTL, M_WAITOK); 5404 ctsio->kern_data_len = length; 5405 ctsio->kern_total_len = length; 5406 ctsio->kern_data_resid = 0; 5407 ctsio->kern_rel_offset = 0; 5408 ctsio->kern_sg_entries = 0; 5409 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5410 ctsio->be_move_done = ctl_config_move_done; 5411 ctl_datamove((union ctl_io *)ctsio); 5412 5413 return (CTL_RETVAL_COMPLETE); 5414 } 5415 5416 defect_list_len = 0; 5417 5418 if (cdb->byte2 & SF_FMTDATA) { 5419 if (cdb->byte2 & SF_LONGLIST) { 5420 struct scsi_format_header_long *header; 5421 5422 header = (struct scsi_format_header_long *) 5423 ctsio->kern_data_ptr; 5424 5425 defect_list_len = scsi_4btoul(header->defect_list_len); 5426 if (defect_list_len != 0) { 5427 ctl_set_invalid_field(ctsio, 5428 /*sks_valid*/ 1, 5429 /*command*/ 0, 5430 /*field*/ 2, 5431 /*bit_valid*/ 0, 5432 /*bit*/ 0); 5433 goto bailout; 5434 } 5435 } else { 5436 struct scsi_format_header_short *header; 5437 5438 header = (struct scsi_format_header_short *) 5439 ctsio->kern_data_ptr; 5440 5441 defect_list_len = scsi_2btoul(header->defect_list_len); 5442 if (defect_list_len != 0) { 5443 ctl_set_invalid_field(ctsio, 5444 /*sks_valid*/ 1, 5445 /*command*/ 0, 5446 /*field*/ 2, 5447 /*bit_valid*/ 0, 5448 /*bit*/ 0); 5449 goto bailout; 5450 } 5451 } 5452 } 5453 5454 ctl_set_success(ctsio); 5455bailout: 5456 5457 if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) { 5458 free(ctsio->kern_data_ptr, M_CTL); 5459 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED; 5460 } 5461 5462 ctl_done((union ctl_io *)ctsio); 5463 return (CTL_RETVAL_COMPLETE); 5464} 5465 5466int 5467ctl_read_buffer(struct ctl_scsiio *ctsio) 5468{ 5469 struct ctl_lun *lun; 5470 uint64_t buffer_offset; 5471 uint32_t len; 5472 uint8_t byte2; 5473 static uint8_t descr[4]; 5474 static uint8_t echo_descr[4] = { 0 }; 5475 5476 CTL_DEBUG_PRINT(("ctl_read_buffer\n")); 5477 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5478 switch (ctsio->cdb[0]) { 5479 case READ_BUFFER: { 5480 struct scsi_read_buffer *cdb; 5481 5482 cdb = (struct scsi_read_buffer *)ctsio->cdb; 5483 buffer_offset = scsi_3btoul(cdb->offset); 5484 len = scsi_3btoul(cdb->length); 5485 byte2 = cdb->byte2; 5486 break; 5487 } 5488 case READ_BUFFER_16: { 5489 struct scsi_read_buffer_16 *cdb; 5490 5491 cdb = (struct scsi_read_buffer_16 *)ctsio->cdb; 5492 buffer_offset = scsi_8btou64(cdb->offset); 5493 len = scsi_4btoul(cdb->length); 5494 byte2 = cdb->byte2; 5495 break; 5496 } 5497 default: /* This shouldn't happen. */ 5498 ctl_set_invalid_opcode(ctsio); 5499 ctl_done((union ctl_io *)ctsio); 5500 return (CTL_RETVAL_COMPLETE); 5501 } 5502 5503 if ((byte2 & RWB_MODE) != RWB_MODE_DATA && 5504 (byte2 & RWB_MODE) != RWB_MODE_ECHO_DESCR && 5505 (byte2 & RWB_MODE) != RWB_MODE_DESCR) { 5506 ctl_set_invalid_field(ctsio, 5507 /*sks_valid*/ 1, 5508 /*command*/ 1, 5509 /*field*/ 1, 5510 /*bit_valid*/ 1, 5511 /*bit*/ 4); 5512 ctl_done((union ctl_io *)ctsio); 5513 return (CTL_RETVAL_COMPLETE); 5514 } 5515 5516 if (buffer_offset > CTL_WRITE_BUFFER_SIZE || 5517 buffer_offset + len > CTL_WRITE_BUFFER_SIZE) { 5518 ctl_set_invalid_field(ctsio, 5519 /*sks_valid*/ 1, 5520 /*command*/ 1, 5521 /*field*/ 6, 5522 /*bit_valid*/ 0, 5523 /*bit*/ 0); 5524 ctl_done((union ctl_io *)ctsio); 5525 return (CTL_RETVAL_COMPLETE); 5526 } 5527 5528 if ((byte2 & RWB_MODE) == RWB_MODE_DESCR) { 5529 descr[0] = 0; 5530 scsi_ulto3b(CTL_WRITE_BUFFER_SIZE, &descr[1]); 5531 ctsio->kern_data_ptr = descr; 5532 len = min(len, sizeof(descr)); 5533 } else if ((byte2 & RWB_MODE) == RWB_MODE_ECHO_DESCR) { 5534 ctsio->kern_data_ptr = echo_descr; 5535 len = min(len, sizeof(echo_descr)); 5536 } else { 5537 if (lun->write_buffer == NULL) { 5538 lun->write_buffer = malloc(CTL_WRITE_BUFFER_SIZE, 5539 M_CTL, M_WAITOK); 5540 } 5541 ctsio->kern_data_ptr = lun->write_buffer + buffer_offset; 5542 } 5543 ctsio->kern_data_len = len; 5544 ctsio->kern_total_len = len; 5545 ctsio->kern_data_resid = 0; 5546 ctsio->kern_rel_offset = 0; 5547 ctsio->kern_sg_entries = 0; 5548 ctl_set_success(ctsio); 5549 ctsio->be_move_done = ctl_config_move_done; 5550 ctl_datamove((union ctl_io *)ctsio); 5551 return (CTL_RETVAL_COMPLETE); 5552} 5553 5554int 5555ctl_write_buffer(struct ctl_scsiio *ctsio) 5556{ 5557 struct scsi_write_buffer *cdb; 5558 struct ctl_lun *lun; 5559 int buffer_offset, len; 5560 5561 CTL_DEBUG_PRINT(("ctl_write_buffer\n")); 5562 5563 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5564 cdb = (struct scsi_write_buffer *)ctsio->cdb; 5565 5566 if ((cdb->byte2 & RWB_MODE) != RWB_MODE_DATA) { 5567 ctl_set_invalid_field(ctsio, 5568 /*sks_valid*/ 1, 5569 /*command*/ 1, 5570 /*field*/ 1, 5571 /*bit_valid*/ 1, 5572 /*bit*/ 4); 5573 ctl_done((union ctl_io *)ctsio); 5574 return (CTL_RETVAL_COMPLETE); 5575 } 5576 5577 len = scsi_3btoul(cdb->length); 5578 buffer_offset = scsi_3btoul(cdb->offset); 5579 5580 if (buffer_offset + len > CTL_WRITE_BUFFER_SIZE) { 5581 ctl_set_invalid_field(ctsio, 5582 /*sks_valid*/ 1, 5583 /*command*/ 1, 5584 /*field*/ 6, 5585 /*bit_valid*/ 0, 5586 /*bit*/ 0); 5587 ctl_done((union ctl_io *)ctsio); 5588 return (CTL_RETVAL_COMPLETE); 5589 } 5590 5591 /* 5592 * If we've got a kernel request that hasn't been malloced yet, 5593 * malloc it and tell the caller the data buffer is here. 5594 */ 5595 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 5596 if (lun->write_buffer == NULL) { 5597 lun->write_buffer = malloc(CTL_WRITE_BUFFER_SIZE, 5598 M_CTL, M_WAITOK); 5599 } 5600 ctsio->kern_data_ptr = lun->write_buffer + buffer_offset; 5601 ctsio->kern_data_len = len; 5602 ctsio->kern_total_len = len; 5603 ctsio->kern_data_resid = 0; 5604 ctsio->kern_rel_offset = 0; 5605 ctsio->kern_sg_entries = 0; 5606 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5607 ctsio->be_move_done = ctl_config_move_done; 5608 ctl_datamove((union ctl_io *)ctsio); 5609 5610 return (CTL_RETVAL_COMPLETE); 5611 } 5612 5613 ctl_set_success(ctsio); 5614 ctl_done((union ctl_io *)ctsio); 5615 return (CTL_RETVAL_COMPLETE); 5616} 5617 5618int 5619ctl_write_same(struct ctl_scsiio *ctsio) 5620{ 5621 struct ctl_lun *lun; 5622 struct ctl_lba_len_flags *lbalen; 5623 uint64_t lba; 5624 uint32_t num_blocks; 5625 int len, retval; 5626 uint8_t byte2; 5627 5628 CTL_DEBUG_PRINT(("ctl_write_same\n")); 5629 5630 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5631 5632 switch (ctsio->cdb[0]) { 5633 case WRITE_SAME_10: { 5634 struct scsi_write_same_10 *cdb; 5635 5636 cdb = (struct scsi_write_same_10 *)ctsio->cdb; 5637 5638 lba = scsi_4btoul(cdb->addr); 5639 num_blocks = scsi_2btoul(cdb->length); 5640 byte2 = cdb->byte2; 5641 break; 5642 } 5643 case WRITE_SAME_16: { 5644 struct scsi_write_same_16 *cdb; 5645 5646 cdb = (struct scsi_write_same_16 *)ctsio->cdb; 5647 5648 lba = scsi_8btou64(cdb->addr); 5649 num_blocks = scsi_4btoul(cdb->length); 5650 byte2 = cdb->byte2; 5651 break; 5652 } 5653 default: 5654 /* 5655 * We got a command we don't support. This shouldn't 5656 * happen, commands should be filtered out above us. 5657 */ 5658 ctl_set_invalid_opcode(ctsio); 5659 ctl_done((union ctl_io *)ctsio); 5660 5661 return (CTL_RETVAL_COMPLETE); 5662 break; /* NOTREACHED */ 5663 } 5664 5665 /* ANCHOR flag can be used only together with UNMAP */ 5666 if ((byte2 & SWS_UNMAP) == 0 && (byte2 & SWS_ANCHOR) != 0) { 5667 ctl_set_invalid_field(ctsio, /*sks_valid*/ 1, 5668 /*command*/ 1, /*field*/ 1, /*bit_valid*/ 1, /*bit*/ 0); 5669 ctl_done((union ctl_io *)ctsio); 5670 return (CTL_RETVAL_COMPLETE); 5671 } 5672 5673 /* 5674 * The first check is to make sure we're in bounds, the second 5675 * check is to catch wrap-around problems. If the lba + num blocks 5676 * is less than the lba, then we've wrapped around and the block 5677 * range is invalid anyway. 5678 */ 5679 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 5680 || ((lba + num_blocks) < lba)) { 5681 ctl_set_lba_out_of_range(ctsio); 5682 ctl_done((union ctl_io *)ctsio); 5683 return (CTL_RETVAL_COMPLETE); 5684 } 5685 5686 /* Zero number of blocks means "to the last logical block" */ 5687 if (num_blocks == 0) { 5688 if ((lun->be_lun->maxlba + 1) - lba > UINT32_MAX) { 5689 ctl_set_invalid_field(ctsio, 5690 /*sks_valid*/ 0, 5691 /*command*/ 1, 5692 /*field*/ 0, 5693 /*bit_valid*/ 0, 5694 /*bit*/ 0); 5695 ctl_done((union ctl_io *)ctsio); 5696 return (CTL_RETVAL_COMPLETE); 5697 } 5698 num_blocks = (lun->be_lun->maxlba + 1) - lba; 5699 } 5700 5701 len = lun->be_lun->blocksize; 5702 5703 /* 5704 * If we've got a kernel request that hasn't been malloced yet, 5705 * malloc it and tell the caller the data buffer is here. 5706 */ 5707 if ((byte2 & SWS_NDOB) == 0 && 5708 (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 5709 ctsio->kern_data_ptr = malloc(len, M_CTL, M_WAITOK); 5710 ctsio->kern_data_len = len; 5711 ctsio->kern_total_len = len; 5712 ctsio->kern_data_resid = 0; 5713 ctsio->kern_rel_offset = 0; 5714 ctsio->kern_sg_entries = 0; 5715 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5716 ctsio->be_move_done = ctl_config_move_done; 5717 ctl_datamove((union ctl_io *)ctsio); 5718 5719 return (CTL_RETVAL_COMPLETE); 5720 } 5721 5722 lbalen = (struct ctl_lba_len_flags *)&ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 5723 lbalen->lba = lba; 5724 lbalen->len = num_blocks; 5725 lbalen->flags = byte2; 5726 retval = lun->backend->config_write((union ctl_io *)ctsio); 5727 5728 return (retval); 5729} 5730 5731int 5732ctl_unmap(struct ctl_scsiio *ctsio) 5733{ 5734 struct ctl_lun *lun; 5735 struct scsi_unmap *cdb; 5736 struct ctl_ptr_len_flags *ptrlen; 5737 struct scsi_unmap_header *hdr; 5738 struct scsi_unmap_desc *buf, *end, *endnz, *range; 5739 uint64_t lba; 5740 uint32_t num_blocks; 5741 int len, retval; 5742 uint8_t byte2; 5743 5744 CTL_DEBUG_PRINT(("ctl_unmap\n")); 5745 5746 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5747 cdb = (struct scsi_unmap *)ctsio->cdb; 5748 5749 len = scsi_2btoul(cdb->length); 5750 byte2 = cdb->byte2; 5751 5752 /* 5753 * If we've got a kernel request that hasn't been malloced yet, 5754 * malloc it and tell the caller the data buffer is here. 5755 */ 5756 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 5757 ctsio->kern_data_ptr = malloc(len, M_CTL, M_WAITOK); 5758 ctsio->kern_data_len = len; 5759 ctsio->kern_total_len = len; 5760 ctsio->kern_data_resid = 0; 5761 ctsio->kern_rel_offset = 0; 5762 ctsio->kern_sg_entries = 0; 5763 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5764 ctsio->be_move_done = ctl_config_move_done; 5765 ctl_datamove((union ctl_io *)ctsio); 5766 5767 return (CTL_RETVAL_COMPLETE); 5768 } 5769 5770 len = ctsio->kern_total_len - ctsio->kern_data_resid; 5771 hdr = (struct scsi_unmap_header *)ctsio->kern_data_ptr; 5772 if (len < sizeof (*hdr) || 5773 len < (scsi_2btoul(hdr->length) + sizeof(hdr->length)) || 5774 len < (scsi_2btoul(hdr->desc_length) + sizeof (*hdr)) || 5775 scsi_2btoul(hdr->desc_length) % sizeof(*buf) != 0) { 5776 ctl_set_invalid_field(ctsio, 5777 /*sks_valid*/ 0, 5778 /*command*/ 0, 5779 /*field*/ 0, 5780 /*bit_valid*/ 0, 5781 /*bit*/ 0); 5782 goto done; 5783 } 5784 len = scsi_2btoul(hdr->desc_length); 5785 buf = (struct scsi_unmap_desc *)(hdr + 1); 5786 end = buf + len / sizeof(*buf); 5787 5788 endnz = buf; 5789 for (range = buf; range < end; range++) { 5790 lba = scsi_8btou64(range->lba); 5791 num_blocks = scsi_4btoul(range->length); 5792 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 5793 || ((lba + num_blocks) < lba)) { 5794 ctl_set_lba_out_of_range(ctsio); 5795 ctl_done((union ctl_io *)ctsio); 5796 return (CTL_RETVAL_COMPLETE); 5797 } 5798 if (num_blocks != 0) 5799 endnz = range + 1; 5800 } 5801 5802 /* 5803 * Block backend can not handle zero last range. 5804 * Filter it out and return if there is nothing left. 5805 */ 5806 len = (uint8_t *)endnz - (uint8_t *)buf; 5807 if (len == 0) { 5808 ctl_set_success(ctsio); 5809 goto done; 5810 } 5811 5812 mtx_lock(&lun->lun_lock); 5813 ptrlen = (struct ctl_ptr_len_flags *) 5814 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 5815 ptrlen->ptr = (void *)buf; 5816 ptrlen->len = len; 5817 ptrlen->flags = byte2; 5818 ctl_check_blocked(lun); 5819 mtx_unlock(&lun->lun_lock); 5820 5821 retval = lun->backend->config_write((union ctl_io *)ctsio); 5822 return (retval); 5823 5824done: 5825 if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) { 5826 free(ctsio->kern_data_ptr, M_CTL); 5827 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED; 5828 } 5829 ctl_done((union ctl_io *)ctsio); 5830 return (CTL_RETVAL_COMPLETE); 5831} 5832 5833int 5834ctl_default_page_handler(struct ctl_scsiio *ctsio, 5835 struct ctl_page_index *page_index, uint8_t *page_ptr) 5836{ 5837 struct ctl_lun *lun; 5838 uint8_t *current_cp, *saved_cp; 5839 int set_ua; 5840 uint32_t initidx; 5841 5842 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5843 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 5844 set_ua = 0; 5845 5846 current_cp = (page_index->page_data + (page_index->page_len * 5847 CTL_PAGE_CURRENT)); 5848 saved_cp = (page_index->page_data + (page_index->page_len * 5849 CTL_PAGE_SAVED)); 5850 5851 mtx_lock(&lun->lun_lock); 5852 if (memcmp(current_cp, page_ptr, page_index->page_len)) { 5853 memcpy(current_cp, page_ptr, page_index->page_len); 5854 memcpy(saved_cp, page_ptr, page_index->page_len); 5855 set_ua = 1; 5856 } 5857 if (set_ua != 0) 5858 ctl_est_ua_all(lun, initidx, CTL_UA_MODE_CHANGE); 5859 mtx_unlock(&lun->lun_lock); 5860 if (set_ua) { 5861 ctl_isc_announce_mode(lun, 5862 ctl_get_initindex(&ctsio->io_hdr.nexus), 5863 page_index->page_code, page_index->subpage); 5864 } 5865 return (CTL_RETVAL_COMPLETE); 5866} 5867 5868static void 5869ctl_ie_timer(void *arg) 5870{ 5871 struct ctl_lun *lun = arg; 5872 struct scsi_info_exceptions_page *pg; 5873 uint64_t t; 5874 5875 if (lun->ie_asc == 0) 5876 return; 5877 5878 pg = &lun->mode_pages.ie_page[CTL_PAGE_CURRENT]; 5879 if (pg->mrie == SIEP_MRIE_UA) 5880 ctl_est_ua_all(lun, -1, CTL_UA_IE); 5881 else 5882 lun->ie_reported = 0; 5883 5884 if (lun->ie_reportcnt < scsi_4btoul(pg->report_count)) { 5885 lun->ie_reportcnt++; 5886 t = scsi_4btoul(pg->interval_timer); 5887 if (t == 0 || t == UINT32_MAX) 5888 t = 3000; /* 5 min */ 5889 callout_schedule(&lun->ie_callout, t * hz / 10); 5890 } 5891} 5892 5893int 5894ctl_ie_page_handler(struct ctl_scsiio *ctsio, 5895 struct ctl_page_index *page_index, uint8_t *page_ptr) 5896{ 5897 struct scsi_info_exceptions_page *pg; 5898 struct ctl_lun *lun; 5899 uint64_t t; 5900 5901 (void)ctl_default_page_handler(ctsio, page_index, page_ptr); 5902 5903 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5904 pg = (struct scsi_info_exceptions_page *)page_ptr; 5905 mtx_lock(&lun->lun_lock); 5906 if (pg->info_flags & SIEP_FLAGS_TEST) { 5907 lun->ie_asc = 0x5d; 5908 lun->ie_ascq = 0xff; 5909 if (pg->mrie == SIEP_MRIE_UA) { 5910 ctl_est_ua_all(lun, -1, CTL_UA_IE); 5911 lun->ie_reported = 1; 5912 } else { 5913 ctl_clr_ua_all(lun, -1, CTL_UA_IE); 5914 lun->ie_reported = -1; 5915 } 5916 lun->ie_reportcnt = 1; 5917 if (lun->ie_reportcnt < scsi_4btoul(pg->report_count)) { 5918 lun->ie_reportcnt++; 5919 t = scsi_4btoul(pg->interval_timer); 5920 if (t == 0 || t == UINT32_MAX) 5921 t = 3000; /* 5 min */ 5922 callout_reset(&lun->ie_callout, t * hz / 10, 5923 ctl_ie_timer, lun); 5924 } 5925 } else { 5926 lun->ie_asc = 0; 5927 lun->ie_ascq = 0; 5928 lun->ie_reported = 1; 5929 ctl_clr_ua_all(lun, -1, CTL_UA_IE); 5930 lun->ie_reportcnt = UINT32_MAX; 5931 callout_stop(&lun->ie_callout); 5932 } 5933 mtx_unlock(&lun->lun_lock); 5934 return (CTL_RETVAL_COMPLETE); 5935} 5936 5937static int 5938ctl_do_mode_select(union ctl_io *io) 5939{ 5940 struct scsi_mode_page_header *page_header; 5941 struct ctl_page_index *page_index; 5942 struct ctl_scsiio *ctsio; 5943 int page_len, page_len_offset, page_len_size; 5944 union ctl_modepage_info *modepage_info; 5945 struct ctl_lun *lun; 5946 int *len_left, *len_used; 5947 int retval, i; 5948 5949 ctsio = &io->scsiio; 5950 page_index = NULL; 5951 page_len = 0; 5952 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5953 5954 modepage_info = (union ctl_modepage_info *) 5955 ctsio->io_hdr.ctl_private[CTL_PRIV_MODEPAGE].bytes; 5956 len_left = &modepage_info->header.len_left; 5957 len_used = &modepage_info->header.len_used; 5958 5959do_next_page: 5960 5961 page_header = (struct scsi_mode_page_header *) 5962 (ctsio->kern_data_ptr + *len_used); 5963 5964 if (*len_left == 0) { 5965 free(ctsio->kern_data_ptr, M_CTL); 5966 ctl_set_success(ctsio); 5967 ctl_done((union ctl_io *)ctsio); 5968 return (CTL_RETVAL_COMPLETE); 5969 } else if (*len_left < sizeof(struct scsi_mode_page_header)) { 5970 5971 free(ctsio->kern_data_ptr, M_CTL); 5972 ctl_set_param_len_error(ctsio); 5973 ctl_done((union ctl_io *)ctsio); 5974 return (CTL_RETVAL_COMPLETE); 5975 5976 } else if ((page_header->page_code & SMPH_SPF) 5977 && (*len_left < sizeof(struct scsi_mode_page_header_sp))) { 5978 5979 free(ctsio->kern_data_ptr, M_CTL); 5980 ctl_set_param_len_error(ctsio); 5981 ctl_done((union ctl_io *)ctsio); 5982 return (CTL_RETVAL_COMPLETE); 5983 } 5984 5985 5986 /* 5987 * XXX KDM should we do something with the block descriptor? 5988 */ 5989 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 5990 page_index = &lun->mode_pages.index[i]; 5991 if (lun->be_lun->lun_type == T_DIRECT && 5992 (page_index->page_flags & CTL_PAGE_FLAG_DIRECT) == 0) 5993 continue; 5994 if (lun->be_lun->lun_type == T_PROCESSOR && 5995 (page_index->page_flags & CTL_PAGE_FLAG_PROC) == 0) 5996 continue; 5997 if (lun->be_lun->lun_type == T_CDROM && 5998 (page_index->page_flags & CTL_PAGE_FLAG_CDROM) == 0) 5999 continue; 6000 6001 if ((page_index->page_code & SMPH_PC_MASK) != 6002 (page_header->page_code & SMPH_PC_MASK)) 6003 continue; 6004 6005 /* 6006 * If neither page has a subpage code, then we've got a 6007 * match. 6008 */ 6009 if (((page_index->page_code & SMPH_SPF) == 0) 6010 && ((page_header->page_code & SMPH_SPF) == 0)) { 6011 page_len = page_header->page_length; 6012 break; 6013 } 6014 6015 /* 6016 * If both pages have subpages, then the subpage numbers 6017 * have to match. 6018 */ 6019 if ((page_index->page_code & SMPH_SPF) 6020 && (page_header->page_code & SMPH_SPF)) { 6021 struct scsi_mode_page_header_sp *sph; 6022 6023 sph = (struct scsi_mode_page_header_sp *)page_header; 6024 if (page_index->subpage == sph->subpage) { 6025 page_len = scsi_2btoul(sph->page_length); 6026 break; 6027 } 6028 } 6029 } 6030 6031 /* 6032 * If we couldn't find the page, or if we don't have a mode select 6033 * handler for it, send back an error to the user. 6034 */ 6035 if ((i >= CTL_NUM_MODE_PAGES) 6036 || (page_index->select_handler == NULL)) { 6037 ctl_set_invalid_field(ctsio, 6038 /*sks_valid*/ 1, 6039 /*command*/ 0, 6040 /*field*/ *len_used, 6041 /*bit_valid*/ 0, 6042 /*bit*/ 0); 6043 free(ctsio->kern_data_ptr, M_CTL); 6044 ctl_done((union ctl_io *)ctsio); 6045 return (CTL_RETVAL_COMPLETE); 6046 } 6047 6048 if (page_index->page_code & SMPH_SPF) { 6049 page_len_offset = 2; 6050 page_len_size = 2; 6051 } else { 6052 page_len_size = 1; 6053 page_len_offset = 1; 6054 } 6055 6056 /* 6057 * If the length the initiator gives us isn't the one we specify in 6058 * the mode page header, or if they didn't specify enough data in 6059 * the CDB to avoid truncating this page, kick out the request. 6060 */ 6061 if ((page_len != (page_index->page_len - page_len_offset - 6062 page_len_size)) 6063 || (*len_left < page_index->page_len)) { 6064 6065 6066 ctl_set_invalid_field(ctsio, 6067 /*sks_valid*/ 1, 6068 /*command*/ 0, 6069 /*field*/ *len_used + page_len_offset, 6070 /*bit_valid*/ 0, 6071 /*bit*/ 0); 6072 free(ctsio->kern_data_ptr, M_CTL); 6073 ctl_done((union ctl_io *)ctsio); 6074 return (CTL_RETVAL_COMPLETE); 6075 } 6076 6077 /* 6078 * Run through the mode page, checking to make sure that the bits 6079 * the user changed are actually legal for him to change. 6080 */ 6081 for (i = 0; i < page_index->page_len; i++) { 6082 uint8_t *user_byte, *change_mask, *current_byte; 6083 int bad_bit; 6084 int j; 6085 6086 user_byte = (uint8_t *)page_header + i; 6087 change_mask = page_index->page_data + 6088 (page_index->page_len * CTL_PAGE_CHANGEABLE) + i; 6089 current_byte = page_index->page_data + 6090 (page_index->page_len * CTL_PAGE_CURRENT) + i; 6091 6092 /* 6093 * Check to see whether the user set any bits in this byte 6094 * that he is not allowed to set. 6095 */ 6096 if ((*user_byte & ~(*change_mask)) == 6097 (*current_byte & ~(*change_mask))) 6098 continue; 6099 6100 /* 6101 * Go through bit by bit to determine which one is illegal. 6102 */ 6103 bad_bit = 0; 6104 for (j = 7; j >= 0; j--) { 6105 if ((((1 << i) & ~(*change_mask)) & *user_byte) != 6106 (((1 << i) & ~(*change_mask)) & *current_byte)) { 6107 bad_bit = i; 6108 break; 6109 } 6110 } 6111 ctl_set_invalid_field(ctsio, 6112 /*sks_valid*/ 1, 6113 /*command*/ 0, 6114 /*field*/ *len_used + i, 6115 /*bit_valid*/ 1, 6116 /*bit*/ bad_bit); 6117 free(ctsio->kern_data_ptr, M_CTL); 6118 ctl_done((union ctl_io *)ctsio); 6119 return (CTL_RETVAL_COMPLETE); 6120 } 6121 6122 /* 6123 * Decrement these before we call the page handler, since we may 6124 * end up getting called back one way or another before the handler 6125 * returns to this context. 6126 */ 6127 *len_left -= page_index->page_len; 6128 *len_used += page_index->page_len; 6129 6130 retval = page_index->select_handler(ctsio, page_index, 6131 (uint8_t *)page_header); 6132 6133 /* 6134 * If the page handler returns CTL_RETVAL_QUEUED, then we need to 6135 * wait until this queued command completes to finish processing 6136 * the mode page. If it returns anything other than 6137 * CTL_RETVAL_COMPLETE (e.g. CTL_RETVAL_ERROR), then it should have 6138 * already set the sense information, freed the data pointer, and 6139 * completed the io for us. 6140 */ 6141 if (retval != CTL_RETVAL_COMPLETE) 6142 goto bailout_no_done; 6143 6144 /* 6145 * If the initiator sent us more than one page, parse the next one. 6146 */ 6147 if (*len_left > 0) 6148 goto do_next_page; 6149 6150 ctl_set_success(ctsio); 6151 free(ctsio->kern_data_ptr, M_CTL); 6152 ctl_done((union ctl_io *)ctsio); 6153 6154bailout_no_done: 6155 6156 return (CTL_RETVAL_COMPLETE); 6157 6158} 6159 6160int 6161ctl_mode_select(struct ctl_scsiio *ctsio) 6162{ 6163 int param_len, pf, sp; 6164 int header_size, bd_len; 6165 union ctl_modepage_info *modepage_info; 6166 6167 switch (ctsio->cdb[0]) { 6168 case MODE_SELECT_6: { 6169 struct scsi_mode_select_6 *cdb; 6170 6171 cdb = (struct scsi_mode_select_6 *)ctsio->cdb; 6172 6173 pf = (cdb->byte2 & SMS_PF) ? 1 : 0; 6174 sp = (cdb->byte2 & SMS_SP) ? 1 : 0; 6175 param_len = cdb->length; 6176 header_size = sizeof(struct scsi_mode_header_6); 6177 break; 6178 } 6179 case MODE_SELECT_10: { 6180 struct scsi_mode_select_10 *cdb; 6181 6182 cdb = (struct scsi_mode_select_10 *)ctsio->cdb; 6183 6184 pf = (cdb->byte2 & SMS_PF) ? 1 : 0; 6185 sp = (cdb->byte2 & SMS_SP) ? 1 : 0; 6186 param_len = scsi_2btoul(cdb->length); 6187 header_size = sizeof(struct scsi_mode_header_10); 6188 break; 6189 } 6190 default: 6191 ctl_set_invalid_opcode(ctsio); 6192 ctl_done((union ctl_io *)ctsio); 6193 return (CTL_RETVAL_COMPLETE); 6194 } 6195 6196 /* 6197 * From SPC-3: 6198 * "A parameter list length of zero indicates that the Data-Out Buffer 6199 * shall be empty. This condition shall not be considered as an error." 6200 */ 6201 if (param_len == 0) { 6202 ctl_set_success(ctsio); 6203 ctl_done((union ctl_io *)ctsio); 6204 return (CTL_RETVAL_COMPLETE); 6205 } 6206 6207 /* 6208 * Since we'll hit this the first time through, prior to 6209 * allocation, we don't need to free a data buffer here. 6210 */ 6211 if (param_len < header_size) { 6212 ctl_set_param_len_error(ctsio); 6213 ctl_done((union ctl_io *)ctsio); 6214 return (CTL_RETVAL_COMPLETE); 6215 } 6216 6217 /* 6218 * Allocate the data buffer and grab the user's data. In theory, 6219 * we shouldn't have to sanity check the parameter list length here 6220 * because the maximum size is 64K. We should be able to malloc 6221 * that much without too many problems. 6222 */ 6223 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 6224 ctsio->kern_data_ptr = malloc(param_len, M_CTL, M_WAITOK); 6225 ctsio->kern_data_len = param_len; 6226 ctsio->kern_total_len = param_len; 6227 ctsio->kern_data_resid = 0; 6228 ctsio->kern_rel_offset = 0; 6229 ctsio->kern_sg_entries = 0; 6230 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6231 ctsio->be_move_done = ctl_config_move_done; 6232 ctl_datamove((union ctl_io *)ctsio); 6233 6234 return (CTL_RETVAL_COMPLETE); 6235 } 6236 6237 switch (ctsio->cdb[0]) { 6238 case MODE_SELECT_6: { 6239 struct scsi_mode_header_6 *mh6; 6240 6241 mh6 = (struct scsi_mode_header_6 *)ctsio->kern_data_ptr; 6242 bd_len = mh6->blk_desc_len; 6243 break; 6244 } 6245 case MODE_SELECT_10: { 6246 struct scsi_mode_header_10 *mh10; 6247 6248 mh10 = (struct scsi_mode_header_10 *)ctsio->kern_data_ptr; 6249 bd_len = scsi_2btoul(mh10->blk_desc_len); 6250 break; 6251 } 6252 default: 6253 panic("%s: Invalid CDB type %#x", __func__, ctsio->cdb[0]); 6254 } 6255 6256 if (param_len < (header_size + bd_len)) { 6257 free(ctsio->kern_data_ptr, M_CTL); 6258 ctl_set_param_len_error(ctsio); 6259 ctl_done((union ctl_io *)ctsio); 6260 return (CTL_RETVAL_COMPLETE); 6261 } 6262 6263 /* 6264 * Set the IO_CONT flag, so that if this I/O gets passed to 6265 * ctl_config_write_done(), it'll get passed back to 6266 * ctl_do_mode_select() for further processing, or completion if 6267 * we're all done. 6268 */ 6269 ctsio->io_hdr.flags |= CTL_FLAG_IO_CONT; 6270 ctsio->io_cont = ctl_do_mode_select; 6271 6272 modepage_info = (union ctl_modepage_info *) 6273 ctsio->io_hdr.ctl_private[CTL_PRIV_MODEPAGE].bytes; 6274 memset(modepage_info, 0, sizeof(*modepage_info)); 6275 modepage_info->header.len_left = param_len - header_size - bd_len; 6276 modepage_info->header.len_used = header_size + bd_len; 6277 6278 return (ctl_do_mode_select((union ctl_io *)ctsio)); 6279} 6280 6281int 6282ctl_mode_sense(struct ctl_scsiio *ctsio) 6283{ 6284 struct ctl_lun *lun; 6285 int pc, page_code, dbd, llba, subpage; 6286 int alloc_len, page_len, header_len, total_len; 6287 struct scsi_mode_block_descr *block_desc; 6288 struct ctl_page_index *page_index; 6289 6290 dbd = 0; 6291 llba = 0; 6292 block_desc = NULL; 6293 6294 CTL_DEBUG_PRINT(("ctl_mode_sense\n")); 6295 6296 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6297 switch (ctsio->cdb[0]) { 6298 case MODE_SENSE_6: { 6299 struct scsi_mode_sense_6 *cdb; 6300 6301 cdb = (struct scsi_mode_sense_6 *)ctsio->cdb; 6302 6303 header_len = sizeof(struct scsi_mode_hdr_6); 6304 if (cdb->byte2 & SMS_DBD) 6305 dbd = 1; 6306 else 6307 header_len += sizeof(struct scsi_mode_block_descr); 6308 6309 pc = (cdb->page & SMS_PAGE_CTRL_MASK) >> 6; 6310 page_code = cdb->page & SMS_PAGE_CODE; 6311 subpage = cdb->subpage; 6312 alloc_len = cdb->length; 6313 break; 6314 } 6315 case MODE_SENSE_10: { 6316 struct scsi_mode_sense_10 *cdb; 6317 6318 cdb = (struct scsi_mode_sense_10 *)ctsio->cdb; 6319 6320 header_len = sizeof(struct scsi_mode_hdr_10); 6321 6322 if (cdb->byte2 & SMS_DBD) 6323 dbd = 1; 6324 else 6325 header_len += sizeof(struct scsi_mode_block_descr); 6326 if (cdb->byte2 & SMS10_LLBAA) 6327 llba = 1; 6328 pc = (cdb->page & SMS_PAGE_CTRL_MASK) >> 6; 6329 page_code = cdb->page & SMS_PAGE_CODE; 6330 subpage = cdb->subpage; 6331 alloc_len = scsi_2btoul(cdb->length); 6332 break; 6333 } 6334 default: 6335 ctl_set_invalid_opcode(ctsio); 6336 ctl_done((union ctl_io *)ctsio); 6337 return (CTL_RETVAL_COMPLETE); 6338 break; /* NOTREACHED */ 6339 } 6340 6341 /* 6342 * We have to make a first pass through to calculate the size of 6343 * the pages that match the user's query. Then we allocate enough 6344 * memory to hold it, and actually copy the data into the buffer. 6345 */ 6346 switch (page_code) { 6347 case SMS_ALL_PAGES_PAGE: { 6348 u_int i; 6349 6350 page_len = 0; 6351 6352 /* 6353 * At the moment, values other than 0 and 0xff here are 6354 * reserved according to SPC-3. 6355 */ 6356 if ((subpage != SMS_SUBPAGE_PAGE_0) 6357 && (subpage != SMS_SUBPAGE_ALL)) { 6358 ctl_set_invalid_field(ctsio, 6359 /*sks_valid*/ 1, 6360 /*command*/ 1, 6361 /*field*/ 3, 6362 /*bit_valid*/ 0, 6363 /*bit*/ 0); 6364 ctl_done((union ctl_io *)ctsio); 6365 return (CTL_RETVAL_COMPLETE); 6366 } 6367 6368 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6369 page_index = &lun->mode_pages.index[i]; 6370 6371 /* Make sure the page is supported for this dev type */ 6372 if (lun->be_lun->lun_type == T_DIRECT && 6373 (page_index->page_flags & CTL_PAGE_FLAG_DIRECT) == 0) 6374 continue; 6375 if (lun->be_lun->lun_type == T_PROCESSOR && 6376 (page_index->page_flags & CTL_PAGE_FLAG_PROC) == 0) 6377 continue; 6378 if (lun->be_lun->lun_type == T_CDROM && 6379 (page_index->page_flags & CTL_PAGE_FLAG_CDROM) == 0) 6380 continue; 6381 6382 /* 6383 * We don't use this subpage if the user didn't 6384 * request all subpages. 6385 */ 6386 if ((page_index->subpage != 0) 6387 && (subpage == SMS_SUBPAGE_PAGE_0)) 6388 continue; 6389 6390#if 0 6391 printf("found page %#x len %d\n", 6392 page_index->page_code & SMPH_PC_MASK, 6393 page_index->page_len); 6394#endif 6395 page_len += page_index->page_len; 6396 } 6397 break; 6398 } 6399 default: { 6400 u_int i; 6401 6402 page_len = 0; 6403 6404 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6405 page_index = &lun->mode_pages.index[i]; 6406 6407 /* Make sure the page is supported for this dev type */ 6408 if (lun->be_lun->lun_type == T_DIRECT && 6409 (page_index->page_flags & CTL_PAGE_FLAG_DIRECT) == 0) 6410 continue; 6411 if (lun->be_lun->lun_type == T_PROCESSOR && 6412 (page_index->page_flags & CTL_PAGE_FLAG_PROC) == 0) 6413 continue; 6414 if (lun->be_lun->lun_type == T_CDROM && 6415 (page_index->page_flags & CTL_PAGE_FLAG_CDROM) == 0) 6416 continue; 6417 6418 /* Look for the right page code */ 6419 if ((page_index->page_code & SMPH_PC_MASK) != page_code) 6420 continue; 6421 6422 /* Look for the right subpage or the subpage wildcard*/ 6423 if ((page_index->subpage != subpage) 6424 && (subpage != SMS_SUBPAGE_ALL)) 6425 continue; 6426 6427#if 0 6428 printf("found page %#x len %d\n", 6429 page_index->page_code & SMPH_PC_MASK, 6430 page_index->page_len); 6431#endif 6432 6433 page_len += page_index->page_len; 6434 } 6435 6436 if (page_len == 0) { 6437 ctl_set_invalid_field(ctsio, 6438 /*sks_valid*/ 1, 6439 /*command*/ 1, 6440 /*field*/ 2, 6441 /*bit_valid*/ 1, 6442 /*bit*/ 5); 6443 ctl_done((union ctl_io *)ctsio); 6444 return (CTL_RETVAL_COMPLETE); 6445 } 6446 break; 6447 } 6448 } 6449 6450 total_len = header_len + page_len; 6451#if 0 6452 printf("header_len = %d, page_len = %d, total_len = %d\n", 6453 header_len, page_len, total_len); 6454#endif 6455 6456 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 6457 ctsio->kern_sg_entries = 0; 6458 ctsio->kern_data_resid = 0; 6459 ctsio->kern_rel_offset = 0; 6460 if (total_len < alloc_len) { 6461 ctsio->residual = alloc_len - total_len; 6462 ctsio->kern_data_len = total_len; 6463 ctsio->kern_total_len = total_len; 6464 } else { 6465 ctsio->residual = 0; 6466 ctsio->kern_data_len = alloc_len; 6467 ctsio->kern_total_len = alloc_len; 6468 } 6469 6470 switch (ctsio->cdb[0]) { 6471 case MODE_SENSE_6: { 6472 struct scsi_mode_hdr_6 *header; 6473 6474 header = (struct scsi_mode_hdr_6 *)ctsio->kern_data_ptr; 6475 6476 header->datalen = MIN(total_len - 1, 254); 6477 if (lun->be_lun->lun_type == T_DIRECT) { 6478 header->dev_specific = 0x10; /* DPOFUA */ 6479 if ((lun->be_lun->flags & CTL_LUN_FLAG_READONLY) || 6480 (lun->mode_pages.control_page[CTL_PAGE_CURRENT] 6481 .eca_and_aen & SCP_SWP) != 0) 6482 header->dev_specific |= 0x80; /* WP */ 6483 } 6484 if (dbd) 6485 header->block_descr_len = 0; 6486 else 6487 header->block_descr_len = 6488 sizeof(struct scsi_mode_block_descr); 6489 block_desc = (struct scsi_mode_block_descr *)&header[1]; 6490 break; 6491 } 6492 case MODE_SENSE_10: { 6493 struct scsi_mode_hdr_10 *header; 6494 int datalen; 6495 6496 header = (struct scsi_mode_hdr_10 *)ctsio->kern_data_ptr; 6497 6498 datalen = MIN(total_len - 2, 65533); 6499 scsi_ulto2b(datalen, header->datalen); 6500 if (lun->be_lun->lun_type == T_DIRECT) { 6501 header->dev_specific = 0x10; /* DPOFUA */ 6502 if ((lun->be_lun->flags & CTL_LUN_FLAG_READONLY) || 6503 (lun->mode_pages.control_page[CTL_PAGE_CURRENT] 6504 .eca_and_aen & SCP_SWP) != 0) 6505 header->dev_specific |= 0x80; /* WP */ 6506 } 6507 if (dbd) 6508 scsi_ulto2b(0, header->block_descr_len); 6509 else 6510 scsi_ulto2b(sizeof(struct scsi_mode_block_descr), 6511 header->block_descr_len); 6512 block_desc = (struct scsi_mode_block_descr *)&header[1]; 6513 break; 6514 } 6515 default: 6516 panic("%s: Invalid CDB type %#x", __func__, ctsio->cdb[0]); 6517 } 6518 6519 /* 6520 * If we've got a disk, use its blocksize in the block 6521 * descriptor. Otherwise, just set it to 0. 6522 */ 6523 if (dbd == 0) { 6524 if (lun->be_lun->lun_type == T_DIRECT) 6525 scsi_ulto3b(lun->be_lun->blocksize, 6526 block_desc->block_len); 6527 else 6528 scsi_ulto3b(0, block_desc->block_len); 6529 } 6530 6531 switch (page_code) { 6532 case SMS_ALL_PAGES_PAGE: { 6533 int i, data_used; 6534 6535 data_used = header_len; 6536 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6537 struct ctl_page_index *page_index; 6538 6539 page_index = &lun->mode_pages.index[i]; 6540 if (lun->be_lun->lun_type == T_DIRECT && 6541 (page_index->page_flags & CTL_PAGE_FLAG_DIRECT) == 0) 6542 continue; 6543 if (lun->be_lun->lun_type == T_PROCESSOR && 6544 (page_index->page_flags & CTL_PAGE_FLAG_PROC) == 0) 6545 continue; 6546 if (lun->be_lun->lun_type == T_CDROM && 6547 (page_index->page_flags & CTL_PAGE_FLAG_CDROM) == 0) 6548 continue; 6549 6550 /* 6551 * We don't use this subpage if the user didn't 6552 * request all subpages. We already checked (above) 6553 * to make sure the user only specified a subpage 6554 * of 0 or 0xff in the SMS_ALL_PAGES_PAGE case. 6555 */ 6556 if ((page_index->subpage != 0) 6557 && (subpage == SMS_SUBPAGE_PAGE_0)) 6558 continue; 6559 6560 /* 6561 * Call the handler, if it exists, to update the 6562 * page to the latest values. 6563 */ 6564 if (page_index->sense_handler != NULL) 6565 page_index->sense_handler(ctsio, page_index,pc); 6566 6567 memcpy(ctsio->kern_data_ptr + data_used, 6568 page_index->page_data + 6569 (page_index->page_len * pc), 6570 page_index->page_len); 6571 data_used += page_index->page_len; 6572 } 6573 break; 6574 } 6575 default: { 6576 int i, data_used; 6577 6578 data_used = header_len; 6579 6580 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6581 struct ctl_page_index *page_index; 6582 6583 page_index = &lun->mode_pages.index[i]; 6584 6585 /* Look for the right page code */ 6586 if ((page_index->page_code & SMPH_PC_MASK) != page_code) 6587 continue; 6588 6589 /* Look for the right subpage or the subpage wildcard*/ 6590 if ((page_index->subpage != subpage) 6591 && (subpage != SMS_SUBPAGE_ALL)) 6592 continue; 6593 6594 /* Make sure the page is supported for this dev type */ 6595 if (lun->be_lun->lun_type == T_DIRECT && 6596 (page_index->page_flags & CTL_PAGE_FLAG_DIRECT) == 0) 6597 continue; 6598 if (lun->be_lun->lun_type == T_PROCESSOR && 6599 (page_index->page_flags & CTL_PAGE_FLAG_PROC) == 0) 6600 continue; 6601 if (lun->be_lun->lun_type == T_CDROM && 6602 (page_index->page_flags & CTL_PAGE_FLAG_CDROM) == 0) 6603 continue; 6604 6605 /* 6606 * Call the handler, if it exists, to update the 6607 * page to the latest values. 6608 */ 6609 if (page_index->sense_handler != NULL) 6610 page_index->sense_handler(ctsio, page_index,pc); 6611 6612 memcpy(ctsio->kern_data_ptr + data_used, 6613 page_index->page_data + 6614 (page_index->page_len * pc), 6615 page_index->page_len); 6616 data_used += page_index->page_len; 6617 } 6618 break; 6619 } 6620 } 6621 6622 ctl_set_success(ctsio); 6623 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6624 ctsio->be_move_done = ctl_config_move_done; 6625 ctl_datamove((union ctl_io *)ctsio); 6626 return (CTL_RETVAL_COMPLETE); 6627} 6628 6629int 6630ctl_lbp_log_sense_handler(struct ctl_scsiio *ctsio, 6631 struct ctl_page_index *page_index, 6632 int pc) 6633{ 6634 struct ctl_lun *lun; 6635 struct scsi_log_param_header *phdr; 6636 uint8_t *data; 6637 uint64_t val; 6638 6639 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6640 data = page_index->page_data; 6641 6642 if (lun->backend->lun_attr != NULL && 6643 (val = lun->backend->lun_attr(lun->be_lun->be_lun, "blocksavail")) 6644 != UINT64_MAX) { 6645 phdr = (struct scsi_log_param_header *)data; 6646 scsi_ulto2b(0x0001, phdr->param_code); 6647 phdr->param_control = SLP_LBIN | SLP_LP; 6648 phdr->param_len = 8; 6649 data = (uint8_t *)(phdr + 1); 6650 scsi_ulto4b(val >> CTL_LBP_EXPONENT, data); 6651 data[4] = 0x02; /* per-pool */ 6652 data += phdr->param_len; 6653 } 6654 6655 if (lun->backend->lun_attr != NULL && 6656 (val = lun->backend->lun_attr(lun->be_lun->be_lun, "blocksused")) 6657 != UINT64_MAX) { 6658 phdr = (struct scsi_log_param_header *)data; 6659 scsi_ulto2b(0x0002, phdr->param_code); 6660 phdr->param_control = SLP_LBIN | SLP_LP; 6661 phdr->param_len = 8; 6662 data = (uint8_t *)(phdr + 1); 6663 scsi_ulto4b(val >> CTL_LBP_EXPONENT, data); 6664 data[4] = 0x01; /* per-LUN */ 6665 data += phdr->param_len; 6666 } 6667 6668 if (lun->backend->lun_attr != NULL && 6669 (val = lun->backend->lun_attr(lun->be_lun->be_lun, "poolblocksavail")) 6670 != UINT64_MAX) { 6671 phdr = (struct scsi_log_param_header *)data; 6672 scsi_ulto2b(0x00f1, phdr->param_code); 6673 phdr->param_control = SLP_LBIN | SLP_LP; 6674 phdr->param_len = 8; 6675 data = (uint8_t *)(phdr + 1); 6676 scsi_ulto4b(val >> CTL_LBP_EXPONENT, data); 6677 data[4] = 0x02; /* per-pool */ 6678 data += phdr->param_len; 6679 } 6680 6681 if (lun->backend->lun_attr != NULL && 6682 (val = lun->backend->lun_attr(lun->be_lun->be_lun, "poolblocksused")) 6683 != UINT64_MAX) { 6684 phdr = (struct scsi_log_param_header *)data; 6685 scsi_ulto2b(0x00f2, phdr->param_code); 6686 phdr->param_control = SLP_LBIN | SLP_LP; 6687 phdr->param_len = 8; 6688 data = (uint8_t *)(phdr + 1); 6689 scsi_ulto4b(val >> CTL_LBP_EXPONENT, data); 6690 data[4] = 0x02; /* per-pool */ 6691 data += phdr->param_len; 6692 } 6693 6694 page_index->page_len = data - page_index->page_data; 6695 return (0); 6696} 6697 6698int 6699ctl_sap_log_sense_handler(struct ctl_scsiio *ctsio, 6700 struct ctl_page_index *page_index, 6701 int pc) 6702{ 6703 struct ctl_lun *lun; 6704 struct stat_page *data; 6705 uint64_t rn, wn, rb, wb; 6706 struct bintime rt, wt; 6707 int i; 6708 6709 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6710 data = (struct stat_page *)page_index->page_data; 6711 6712 scsi_ulto2b(SLP_SAP, data->sap.hdr.param_code); 6713 data->sap.hdr.param_control = SLP_LBIN; 6714 data->sap.hdr.param_len = sizeof(struct scsi_log_stat_and_perf) - 6715 sizeof(struct scsi_log_param_header); 6716 rn = wn = rb = wb = 0; 6717 bintime_clear(&rt); 6718 bintime_clear(&wt); 6719 for (i = 0; i < CTL_MAX_PORTS; i++) { 6720 rn += lun->stats.ports[i].operations[CTL_STATS_READ]; 6721 wn += lun->stats.ports[i].operations[CTL_STATS_WRITE]; 6722 rb += lun->stats.ports[i].bytes[CTL_STATS_READ]; 6723 wb += lun->stats.ports[i].bytes[CTL_STATS_WRITE]; 6724 bintime_add(&rt, &lun->stats.ports[i].time[CTL_STATS_READ]); 6725 bintime_add(&wt, &lun->stats.ports[i].time[CTL_STATS_WRITE]); 6726 } 6727 scsi_u64to8b(rn, data->sap.read_num); 6728 scsi_u64to8b(wn, data->sap.write_num); 6729 if (lun->stats.blocksize > 0) { 6730 scsi_u64to8b(wb / lun->stats.blocksize, 6731 data->sap.recvieved_lba); 6732 scsi_u64to8b(rb / lun->stats.blocksize, 6733 data->sap.transmitted_lba); 6734 } 6735 scsi_u64to8b((uint64_t)rt.sec * 1000 + rt.frac / (UINT64_MAX / 1000), 6736 data->sap.read_int); 6737 scsi_u64to8b((uint64_t)wt.sec * 1000 + wt.frac / (UINT64_MAX / 1000), 6738 data->sap.write_int); 6739 scsi_u64to8b(0, data->sap.weighted_num); 6740 scsi_u64to8b(0, data->sap.weighted_int); 6741 scsi_ulto2b(SLP_IT, data->it.hdr.param_code); 6742 data->it.hdr.param_control = SLP_LBIN; 6743 data->it.hdr.param_len = sizeof(struct scsi_log_idle_time) - 6744 sizeof(struct scsi_log_param_header); 6745#ifdef CTL_TIME_IO 6746 scsi_u64to8b(lun->idle_time / SBT_1MS, data->it.idle_int); 6747#endif 6748 scsi_ulto2b(SLP_TI, data->ti.hdr.param_code); 6749 data->it.hdr.param_control = SLP_LBIN; 6750 data->ti.hdr.param_len = sizeof(struct scsi_log_time_interval) - 6751 sizeof(struct scsi_log_param_header); 6752 scsi_ulto4b(3, data->ti.exponent); 6753 scsi_ulto4b(1, data->ti.integer); 6754 return (0); 6755} 6756 6757int 6758ctl_ie_log_sense_handler(struct ctl_scsiio *ctsio, 6759 struct ctl_page_index *page_index, 6760 int pc) 6761{ 6762 struct ctl_lun *lun; 6763 struct scsi_log_informational_exceptions *data; 6764 6765 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6766 data = (struct scsi_log_informational_exceptions *)page_index->page_data; 6767 6768 scsi_ulto2b(SLP_IE_GEN, data->hdr.param_code); 6769 data->hdr.param_control = SLP_LBIN; 6770 data->hdr.param_len = sizeof(struct scsi_log_informational_exceptions) - 6771 sizeof(struct scsi_log_param_header); 6772 data->ie_asc = lun->ie_asc; 6773 data->ie_ascq = lun->ie_ascq; 6774 data->temperature = 0xff; 6775 return (0); 6776} 6777 6778int 6779ctl_log_sense(struct ctl_scsiio *ctsio) 6780{ 6781 struct ctl_lun *lun; 6782 int i, pc, page_code, subpage; 6783 int alloc_len, total_len; 6784 struct ctl_page_index *page_index; 6785 struct scsi_log_sense *cdb; 6786 struct scsi_log_header *header; 6787 6788 CTL_DEBUG_PRINT(("ctl_log_sense\n")); 6789 6790 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6791 cdb = (struct scsi_log_sense *)ctsio->cdb; 6792 pc = (cdb->page & SLS_PAGE_CTRL_MASK) >> 6; 6793 page_code = cdb->page & SLS_PAGE_CODE; 6794 subpage = cdb->subpage; 6795 alloc_len = scsi_2btoul(cdb->length); 6796 6797 page_index = NULL; 6798 for (i = 0; i < CTL_NUM_LOG_PAGES; i++) { 6799 page_index = &lun->log_pages.index[i]; 6800 6801 /* Look for the right page code */ 6802 if ((page_index->page_code & SL_PAGE_CODE) != page_code) 6803 continue; 6804 6805 /* Look for the right subpage or the subpage wildcard*/ 6806 if (page_index->subpage != subpage) 6807 continue; 6808 6809 break; 6810 } 6811 if (i >= CTL_NUM_LOG_PAGES) { 6812 ctl_set_invalid_field(ctsio, 6813 /*sks_valid*/ 1, 6814 /*command*/ 1, 6815 /*field*/ 2, 6816 /*bit_valid*/ 0, 6817 /*bit*/ 0); 6818 ctl_done((union ctl_io *)ctsio); 6819 return (CTL_RETVAL_COMPLETE); 6820 } 6821 6822 total_len = sizeof(struct scsi_log_header) + page_index->page_len; 6823 6824 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 6825 ctsio->kern_sg_entries = 0; 6826 ctsio->kern_data_resid = 0; 6827 ctsio->kern_rel_offset = 0; 6828 if (total_len < alloc_len) { 6829 ctsio->residual = alloc_len - total_len; 6830 ctsio->kern_data_len = total_len; 6831 ctsio->kern_total_len = total_len; 6832 } else { 6833 ctsio->residual = 0; 6834 ctsio->kern_data_len = alloc_len; 6835 ctsio->kern_total_len = alloc_len; 6836 } 6837 6838 header = (struct scsi_log_header *)ctsio->kern_data_ptr; 6839 header->page = page_index->page_code; 6840 if (page_index->page_code == SLS_LOGICAL_BLOCK_PROVISIONING) 6841 header->page |= SL_DS; 6842 if (page_index->subpage) { 6843 header->page |= SL_SPF; 6844 header->subpage = page_index->subpage; 6845 } 6846 scsi_ulto2b(page_index->page_len, header->datalen); 6847 6848 /* 6849 * Call the handler, if it exists, to update the 6850 * page to the latest values. 6851 */ 6852 if (page_index->sense_handler != NULL) 6853 page_index->sense_handler(ctsio, page_index, pc); 6854 6855 memcpy(header + 1, page_index->page_data, page_index->page_len); 6856 6857 ctl_set_success(ctsio); 6858 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6859 ctsio->be_move_done = ctl_config_move_done; 6860 ctl_datamove((union ctl_io *)ctsio); 6861 return (CTL_RETVAL_COMPLETE); 6862} 6863 6864int 6865ctl_read_capacity(struct ctl_scsiio *ctsio) 6866{ 6867 struct scsi_read_capacity *cdb; 6868 struct scsi_read_capacity_data *data; 6869 struct ctl_lun *lun; 6870 uint32_t lba; 6871 6872 CTL_DEBUG_PRINT(("ctl_read_capacity\n")); 6873 6874 cdb = (struct scsi_read_capacity *)ctsio->cdb; 6875 6876 lba = scsi_4btoul(cdb->addr); 6877 if (((cdb->pmi & SRC_PMI) == 0) 6878 && (lba != 0)) { 6879 ctl_set_invalid_field(/*ctsio*/ ctsio, 6880 /*sks_valid*/ 1, 6881 /*command*/ 1, 6882 /*field*/ 2, 6883 /*bit_valid*/ 0, 6884 /*bit*/ 0); 6885 ctl_done((union ctl_io *)ctsio); 6886 return (CTL_RETVAL_COMPLETE); 6887 } 6888 6889 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6890 6891 ctsio->kern_data_ptr = malloc(sizeof(*data), M_CTL, M_WAITOK | M_ZERO); 6892 data = (struct scsi_read_capacity_data *)ctsio->kern_data_ptr; 6893 ctsio->residual = 0; 6894 ctsio->kern_data_len = sizeof(*data); 6895 ctsio->kern_total_len = sizeof(*data); 6896 ctsio->kern_data_resid = 0; 6897 ctsio->kern_rel_offset = 0; 6898 ctsio->kern_sg_entries = 0; 6899 6900 /* 6901 * If the maximum LBA is greater than 0xfffffffe, the user must 6902 * issue a SERVICE ACTION IN (16) command, with the read capacity 6903 * serivce action set. 6904 */ 6905 if (lun->be_lun->maxlba > 0xfffffffe) 6906 scsi_ulto4b(0xffffffff, data->addr); 6907 else 6908 scsi_ulto4b(lun->be_lun->maxlba, data->addr); 6909 6910 /* 6911 * XXX KDM this may not be 512 bytes... 6912 */ 6913 scsi_ulto4b(lun->be_lun->blocksize, data->length); 6914 6915 ctl_set_success(ctsio); 6916 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6917 ctsio->be_move_done = ctl_config_move_done; 6918 ctl_datamove((union ctl_io *)ctsio); 6919 return (CTL_RETVAL_COMPLETE); 6920} 6921 6922int 6923ctl_read_capacity_16(struct ctl_scsiio *ctsio) 6924{ 6925 struct scsi_read_capacity_16 *cdb; 6926 struct scsi_read_capacity_data_long *data; 6927 struct ctl_lun *lun; 6928 uint64_t lba; 6929 uint32_t alloc_len; 6930 6931 CTL_DEBUG_PRINT(("ctl_read_capacity_16\n")); 6932 6933 cdb = (struct scsi_read_capacity_16 *)ctsio->cdb; 6934 6935 alloc_len = scsi_4btoul(cdb->alloc_len); 6936 lba = scsi_8btou64(cdb->addr); 6937 6938 if ((cdb->reladr & SRC16_PMI) 6939 && (lba != 0)) { 6940 ctl_set_invalid_field(/*ctsio*/ ctsio, 6941 /*sks_valid*/ 1, 6942 /*command*/ 1, 6943 /*field*/ 2, 6944 /*bit_valid*/ 0, 6945 /*bit*/ 0); 6946 ctl_done((union ctl_io *)ctsio); 6947 return (CTL_RETVAL_COMPLETE); 6948 } 6949 6950 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6951 6952 ctsio->kern_data_ptr = malloc(sizeof(*data), M_CTL, M_WAITOK | M_ZERO); 6953 data = (struct scsi_read_capacity_data_long *)ctsio->kern_data_ptr; 6954 6955 if (sizeof(*data) < alloc_len) { 6956 ctsio->residual = alloc_len - sizeof(*data); 6957 ctsio->kern_data_len = sizeof(*data); 6958 ctsio->kern_total_len = sizeof(*data); 6959 } else { 6960 ctsio->residual = 0; 6961 ctsio->kern_data_len = alloc_len; 6962 ctsio->kern_total_len = alloc_len; 6963 } 6964 ctsio->kern_data_resid = 0; 6965 ctsio->kern_rel_offset = 0; 6966 ctsio->kern_sg_entries = 0; 6967 6968 scsi_u64to8b(lun->be_lun->maxlba, data->addr); 6969 /* XXX KDM this may not be 512 bytes... */ 6970 scsi_ulto4b(lun->be_lun->blocksize, data->length); 6971 data->prot_lbppbe = lun->be_lun->pblockexp & SRC16_LBPPBE; 6972 scsi_ulto2b(lun->be_lun->pblockoff & SRC16_LALBA_A, data->lalba_lbp); 6973 if (lun->be_lun->flags & CTL_LUN_FLAG_UNMAP) 6974 data->lalba_lbp[0] |= SRC16_LBPME | SRC16_LBPRZ; 6975 6976 ctl_set_success(ctsio); 6977 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6978 ctsio->be_move_done = ctl_config_move_done; 6979 ctl_datamove((union ctl_io *)ctsio); 6980 return (CTL_RETVAL_COMPLETE); 6981} 6982 6983int 6984ctl_get_lba_status(struct ctl_scsiio *ctsio) 6985{ 6986 struct scsi_get_lba_status *cdb; 6987 struct scsi_get_lba_status_data *data; 6988 struct ctl_lun *lun; 6989 struct ctl_lba_len_flags *lbalen; 6990 uint64_t lba; 6991 uint32_t alloc_len, total_len; 6992 int retval; 6993 6994 CTL_DEBUG_PRINT(("ctl_get_lba_status\n")); 6995 6996 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6997 cdb = (struct scsi_get_lba_status *)ctsio->cdb; 6998 lba = scsi_8btou64(cdb->addr); 6999 alloc_len = scsi_4btoul(cdb->alloc_len); 7000 7001 if (lba > lun->be_lun->maxlba) { 7002 ctl_set_lba_out_of_range(ctsio); 7003 ctl_done((union ctl_io *)ctsio); 7004 return (CTL_RETVAL_COMPLETE); 7005 } 7006 7007 total_len = sizeof(*data) + sizeof(data->descr[0]); 7008 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7009 data = (struct scsi_get_lba_status_data *)ctsio->kern_data_ptr; 7010 7011 if (total_len < alloc_len) { 7012 ctsio->residual = alloc_len - total_len; 7013 ctsio->kern_data_len = total_len; 7014 ctsio->kern_total_len = total_len; 7015 } else { 7016 ctsio->residual = 0; 7017 ctsio->kern_data_len = alloc_len; 7018 ctsio->kern_total_len = alloc_len; 7019 } 7020 ctsio->kern_data_resid = 0; 7021 ctsio->kern_rel_offset = 0; 7022 ctsio->kern_sg_entries = 0; 7023 7024 /* Fill dummy data in case backend can't tell anything. */ 7025 scsi_ulto4b(4 + sizeof(data->descr[0]), data->length); 7026 scsi_u64to8b(lba, data->descr[0].addr); 7027 scsi_ulto4b(MIN(UINT32_MAX, lun->be_lun->maxlba + 1 - lba), 7028 data->descr[0].length); 7029 data->descr[0].status = 0; /* Mapped or unknown. */ 7030 7031 ctl_set_success(ctsio); 7032 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7033 ctsio->be_move_done = ctl_config_move_done; 7034 7035 lbalen = (struct ctl_lba_len_flags *)&ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 7036 lbalen->lba = lba; 7037 lbalen->len = total_len; 7038 lbalen->flags = 0; 7039 retval = lun->backend->config_read((union ctl_io *)ctsio); 7040 return (CTL_RETVAL_COMPLETE); 7041} 7042 7043int 7044ctl_read_defect(struct ctl_scsiio *ctsio) 7045{ 7046 struct scsi_read_defect_data_10 *ccb10; 7047 struct scsi_read_defect_data_12 *ccb12; 7048 struct scsi_read_defect_data_hdr_10 *data10; 7049 struct scsi_read_defect_data_hdr_12 *data12; 7050 uint32_t alloc_len, data_len; 7051 uint8_t format; 7052 7053 CTL_DEBUG_PRINT(("ctl_read_defect\n")); 7054 7055 if (ctsio->cdb[0] == READ_DEFECT_DATA_10) { 7056 ccb10 = (struct scsi_read_defect_data_10 *)&ctsio->cdb; 7057 format = ccb10->format; 7058 alloc_len = scsi_2btoul(ccb10->alloc_length); 7059 data_len = sizeof(*data10); 7060 } else { 7061 ccb12 = (struct scsi_read_defect_data_12 *)&ctsio->cdb; 7062 format = ccb12->format; 7063 alloc_len = scsi_4btoul(ccb12->alloc_length); 7064 data_len = sizeof(*data12); 7065 } 7066 if (alloc_len == 0) { 7067 ctl_set_success(ctsio); 7068 ctl_done((union ctl_io *)ctsio); 7069 return (CTL_RETVAL_COMPLETE); 7070 } 7071 7072 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 7073 if (data_len < alloc_len) { 7074 ctsio->residual = alloc_len - data_len; 7075 ctsio->kern_data_len = data_len; 7076 ctsio->kern_total_len = data_len; 7077 } else { 7078 ctsio->residual = 0; 7079 ctsio->kern_data_len = alloc_len; 7080 ctsio->kern_total_len = alloc_len; 7081 } 7082 ctsio->kern_data_resid = 0; 7083 ctsio->kern_rel_offset = 0; 7084 ctsio->kern_sg_entries = 0; 7085 7086 if (ctsio->cdb[0] == READ_DEFECT_DATA_10) { 7087 data10 = (struct scsi_read_defect_data_hdr_10 *) 7088 ctsio->kern_data_ptr; 7089 data10->format = format; 7090 scsi_ulto2b(0, data10->length); 7091 } else { 7092 data12 = (struct scsi_read_defect_data_hdr_12 *) 7093 ctsio->kern_data_ptr; 7094 data12->format = format; 7095 scsi_ulto2b(0, data12->generation); 7096 scsi_ulto4b(0, data12->length); 7097 } 7098 7099 ctl_set_success(ctsio); 7100 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7101 ctsio->be_move_done = ctl_config_move_done; 7102 ctl_datamove((union ctl_io *)ctsio); 7103 return (CTL_RETVAL_COMPLETE); 7104} 7105 7106int 7107ctl_report_tagret_port_groups(struct ctl_scsiio *ctsio) 7108{ 7109 struct scsi_maintenance_in *cdb; 7110 int retval; 7111 int alloc_len, ext, total_len = 0, g, pc, pg, ts, os; 7112 int num_ha_groups, num_target_ports, shared_group; 7113 struct ctl_lun *lun; 7114 struct ctl_softc *softc; 7115 struct ctl_port *port; 7116 struct scsi_target_group_data *rtg_ptr; 7117 struct scsi_target_group_data_extended *rtg_ext_ptr; 7118 struct scsi_target_port_group_descriptor *tpg_desc; 7119 7120 CTL_DEBUG_PRINT(("ctl_report_tagret_port_groups\n")); 7121 7122 cdb = (struct scsi_maintenance_in *)ctsio->cdb; 7123 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7124 softc = lun->ctl_softc; 7125 7126 retval = CTL_RETVAL_COMPLETE; 7127 7128 switch (cdb->byte2 & STG_PDF_MASK) { 7129 case STG_PDF_LENGTH: 7130 ext = 0; 7131 break; 7132 case STG_PDF_EXTENDED: 7133 ext = 1; 7134 break; 7135 default: 7136 ctl_set_invalid_field(/*ctsio*/ ctsio, 7137 /*sks_valid*/ 1, 7138 /*command*/ 1, 7139 /*field*/ 2, 7140 /*bit_valid*/ 1, 7141 /*bit*/ 5); 7142 ctl_done((union ctl_io *)ctsio); 7143 return(retval); 7144 } 7145 7146 num_target_ports = 0; 7147 shared_group = (softc->is_single != 0); 7148 mtx_lock(&softc->ctl_lock); 7149 STAILQ_FOREACH(port, &softc->port_list, links) { 7150 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 7151 continue; 7152 if (ctl_lun_map_to_port(port, lun->lun) >= CTL_MAX_LUNS) 7153 continue; 7154 num_target_ports++; 7155 if (port->status & CTL_PORT_STATUS_HA_SHARED) 7156 shared_group = 1; 7157 } 7158 mtx_unlock(&softc->ctl_lock); 7159 num_ha_groups = (softc->is_single) ? 0 : NUM_HA_SHELVES; 7160 7161 if (ext) 7162 total_len = sizeof(struct scsi_target_group_data_extended); 7163 else 7164 total_len = sizeof(struct scsi_target_group_data); 7165 total_len += sizeof(struct scsi_target_port_group_descriptor) * 7166 (shared_group + num_ha_groups) + 7167 sizeof(struct scsi_target_port_descriptor) * num_target_ports; 7168 7169 alloc_len = scsi_4btoul(cdb->length); 7170 7171 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7172 7173 ctsio->kern_sg_entries = 0; 7174 7175 if (total_len < alloc_len) { 7176 ctsio->residual = alloc_len - total_len; 7177 ctsio->kern_data_len = total_len; 7178 ctsio->kern_total_len = total_len; 7179 } else { 7180 ctsio->residual = 0; 7181 ctsio->kern_data_len = alloc_len; 7182 ctsio->kern_total_len = alloc_len; 7183 } 7184 ctsio->kern_data_resid = 0; 7185 ctsio->kern_rel_offset = 0; 7186 7187 if (ext) { 7188 rtg_ext_ptr = (struct scsi_target_group_data_extended *) 7189 ctsio->kern_data_ptr; 7190 scsi_ulto4b(total_len - 4, rtg_ext_ptr->length); 7191 rtg_ext_ptr->format_type = 0x10; 7192 rtg_ext_ptr->implicit_transition_time = 0; 7193 tpg_desc = &rtg_ext_ptr->groups[0]; 7194 } else { 7195 rtg_ptr = (struct scsi_target_group_data *) 7196 ctsio->kern_data_ptr; 7197 scsi_ulto4b(total_len - 4, rtg_ptr->length); 7198 tpg_desc = &rtg_ptr->groups[0]; 7199 } 7200 7201 mtx_lock(&softc->ctl_lock); 7202 pg = softc->port_min / softc->port_cnt; 7203 if (lun->flags & (CTL_LUN_PRIMARY_SC | CTL_LUN_PEER_SC_PRIMARY)) { 7204 /* Some shelf is known to be primary. */ 7205 if (softc->ha_link == CTL_HA_LINK_OFFLINE) 7206 os = TPG_ASYMMETRIC_ACCESS_UNAVAILABLE; 7207 else if (softc->ha_link == CTL_HA_LINK_UNKNOWN) 7208 os = TPG_ASYMMETRIC_ACCESS_TRANSITIONING; 7209 else if (softc->ha_mode == CTL_HA_MODE_ACT_STBY) 7210 os = TPG_ASYMMETRIC_ACCESS_STANDBY; 7211 else 7212 os = TPG_ASYMMETRIC_ACCESS_NONOPTIMIZED; 7213 if (lun->flags & CTL_LUN_PRIMARY_SC) { 7214 ts = TPG_ASYMMETRIC_ACCESS_OPTIMIZED; 7215 } else { 7216 ts = os; 7217 os = TPG_ASYMMETRIC_ACCESS_OPTIMIZED; 7218 } 7219 } else { 7220 /* No known primary shelf. */ 7221 if (softc->ha_link == CTL_HA_LINK_OFFLINE) { 7222 ts = TPG_ASYMMETRIC_ACCESS_UNAVAILABLE; 7223 os = TPG_ASYMMETRIC_ACCESS_OPTIMIZED; 7224 } else if (softc->ha_link == CTL_HA_LINK_UNKNOWN) { 7225 ts = TPG_ASYMMETRIC_ACCESS_TRANSITIONING; 7226 os = TPG_ASYMMETRIC_ACCESS_OPTIMIZED; 7227 } else { 7228 ts = os = TPG_ASYMMETRIC_ACCESS_TRANSITIONING; 7229 } 7230 } 7231 if (shared_group) { 7232 tpg_desc->pref_state = ts; 7233 tpg_desc->support = TPG_AO_SUP | TPG_AN_SUP | TPG_S_SUP | 7234 TPG_U_SUP | TPG_T_SUP; 7235 scsi_ulto2b(1, tpg_desc->target_port_group); 7236 tpg_desc->status = TPG_IMPLICIT; 7237 pc = 0; 7238 STAILQ_FOREACH(port, &softc->port_list, links) { 7239 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 7240 continue; 7241 if (!softc->is_single && 7242 (port->status & CTL_PORT_STATUS_HA_SHARED) == 0) 7243 continue; 7244 if (ctl_lun_map_to_port(port, lun->lun) >= CTL_MAX_LUNS) 7245 continue; 7246 scsi_ulto2b(port->targ_port, tpg_desc->descriptors[pc]. 7247 relative_target_port_identifier); 7248 pc++; 7249 } 7250 tpg_desc->target_port_count = pc; 7251 tpg_desc = (struct scsi_target_port_group_descriptor *) 7252 &tpg_desc->descriptors[pc]; 7253 } 7254 for (g = 0; g < num_ha_groups; g++) { 7255 tpg_desc->pref_state = (g == pg) ? ts : os; 7256 tpg_desc->support = TPG_AO_SUP | TPG_AN_SUP | TPG_S_SUP | 7257 TPG_U_SUP | TPG_T_SUP; 7258 scsi_ulto2b(2 + g, tpg_desc->target_port_group); 7259 tpg_desc->status = TPG_IMPLICIT; 7260 pc = 0; 7261 STAILQ_FOREACH(port, &softc->port_list, links) { 7262 if (port->targ_port < g * softc->port_cnt || 7263 port->targ_port >= (g + 1) * softc->port_cnt) 7264 continue; 7265 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 7266 continue; 7267 if (port->status & CTL_PORT_STATUS_HA_SHARED) 7268 continue; 7269 if (ctl_lun_map_to_port(port, lun->lun) >= CTL_MAX_LUNS) 7270 continue; 7271 scsi_ulto2b(port->targ_port, tpg_desc->descriptors[pc]. 7272 relative_target_port_identifier); 7273 pc++; 7274 } 7275 tpg_desc->target_port_count = pc; 7276 tpg_desc = (struct scsi_target_port_group_descriptor *) 7277 &tpg_desc->descriptors[pc]; 7278 } 7279 mtx_unlock(&softc->ctl_lock); 7280 7281 ctl_set_success(ctsio); 7282 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7283 ctsio->be_move_done = ctl_config_move_done; 7284 ctl_datamove((union ctl_io *)ctsio); 7285 return(retval); 7286} 7287 7288int 7289ctl_report_supported_opcodes(struct ctl_scsiio *ctsio) 7290{ 7291 struct ctl_lun *lun; 7292 struct scsi_report_supported_opcodes *cdb; 7293 const struct ctl_cmd_entry *entry, *sentry; 7294 struct scsi_report_supported_opcodes_all *all; 7295 struct scsi_report_supported_opcodes_descr *descr; 7296 struct scsi_report_supported_opcodes_one *one; 7297 int retval; 7298 int alloc_len, total_len; 7299 int opcode, service_action, i, j, num; 7300 7301 CTL_DEBUG_PRINT(("ctl_report_supported_opcodes\n")); 7302 7303 cdb = (struct scsi_report_supported_opcodes *)ctsio->cdb; 7304 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7305 7306 retval = CTL_RETVAL_COMPLETE; 7307 7308 opcode = cdb->requested_opcode; 7309 service_action = scsi_2btoul(cdb->requested_service_action); 7310 switch (cdb->options & RSO_OPTIONS_MASK) { 7311 case RSO_OPTIONS_ALL: 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 num++; 7322 } 7323 } else { 7324 if (ctl_cmd_applicable(lun->be_lun->lun_type, 7325 entry)) 7326 num++; 7327 } 7328 } 7329 total_len = sizeof(struct scsi_report_supported_opcodes_all) + 7330 num * sizeof(struct scsi_report_supported_opcodes_descr); 7331 break; 7332 case RSO_OPTIONS_OC: 7333 if (ctl_cmd_table[opcode].flags & CTL_CMD_FLAG_SA5) { 7334 ctl_set_invalid_field(/*ctsio*/ ctsio, 7335 /*sks_valid*/ 1, 7336 /*command*/ 1, 7337 /*field*/ 2, 7338 /*bit_valid*/ 1, 7339 /*bit*/ 2); 7340 ctl_done((union ctl_io *)ctsio); 7341 return (CTL_RETVAL_COMPLETE); 7342 } 7343 total_len = sizeof(struct scsi_report_supported_opcodes_one) + 32; 7344 break; 7345 case RSO_OPTIONS_OC_SA: 7346 if ((ctl_cmd_table[opcode].flags & CTL_CMD_FLAG_SA5) == 0 || 7347 service_action >= 32) { 7348 ctl_set_invalid_field(/*ctsio*/ ctsio, 7349 /*sks_valid*/ 1, 7350 /*command*/ 1, 7351 /*field*/ 2, 7352 /*bit_valid*/ 1, 7353 /*bit*/ 2); 7354 ctl_done((union ctl_io *)ctsio); 7355 return (CTL_RETVAL_COMPLETE); 7356 } 7357 total_len = sizeof(struct scsi_report_supported_opcodes_one) + 32; 7358 break; 7359 default: 7360 ctl_set_invalid_field(/*ctsio*/ ctsio, 7361 /*sks_valid*/ 1, 7362 /*command*/ 1, 7363 /*field*/ 2, 7364 /*bit_valid*/ 1, 7365 /*bit*/ 2); 7366 ctl_done((union ctl_io *)ctsio); 7367 return (CTL_RETVAL_COMPLETE); 7368 } 7369 7370 alloc_len = scsi_4btoul(cdb->length); 7371 7372 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7373 7374 ctsio->kern_sg_entries = 0; 7375 7376 if (total_len < alloc_len) { 7377 ctsio->residual = alloc_len - total_len; 7378 ctsio->kern_data_len = total_len; 7379 ctsio->kern_total_len = total_len; 7380 } else { 7381 ctsio->residual = 0; 7382 ctsio->kern_data_len = alloc_len; 7383 ctsio->kern_total_len = alloc_len; 7384 } 7385 ctsio->kern_data_resid = 0; 7386 ctsio->kern_rel_offset = 0; 7387 7388 switch (cdb->options & RSO_OPTIONS_MASK) { 7389 case RSO_OPTIONS_ALL: 7390 all = (struct scsi_report_supported_opcodes_all *) 7391 ctsio->kern_data_ptr; 7392 num = 0; 7393 for (i = 0; i < 256; i++) { 7394 entry = &ctl_cmd_table[i]; 7395 if (entry->flags & CTL_CMD_FLAG_SA5) { 7396 for (j = 0; j < 32; j++) { 7397 sentry = &((const struct ctl_cmd_entry *) 7398 entry->execute)[j]; 7399 if (!ctl_cmd_applicable( 7400 lun->be_lun->lun_type, sentry)) 7401 continue; 7402 descr = &all->descr[num++]; 7403 descr->opcode = i; 7404 scsi_ulto2b(j, descr->service_action); 7405 descr->flags = RSO_SERVACTV; 7406 scsi_ulto2b(sentry->length, 7407 descr->cdb_length); 7408 } 7409 } else { 7410 if (!ctl_cmd_applicable(lun->be_lun->lun_type, 7411 entry)) 7412 continue; 7413 descr = &all->descr[num++]; 7414 descr->opcode = i; 7415 scsi_ulto2b(0, descr->service_action); 7416 descr->flags = 0; 7417 scsi_ulto2b(entry->length, descr->cdb_length); 7418 } 7419 } 7420 scsi_ulto4b( 7421 num * sizeof(struct scsi_report_supported_opcodes_descr), 7422 all->length); 7423 break; 7424 case RSO_OPTIONS_OC: 7425 one = (struct scsi_report_supported_opcodes_one *) 7426 ctsio->kern_data_ptr; 7427 entry = &ctl_cmd_table[opcode]; 7428 goto fill_one; 7429 case RSO_OPTIONS_OC_SA: 7430 one = (struct scsi_report_supported_opcodes_one *) 7431 ctsio->kern_data_ptr; 7432 entry = &ctl_cmd_table[opcode]; 7433 entry = &((const struct ctl_cmd_entry *) 7434 entry->execute)[service_action]; 7435fill_one: 7436 if (ctl_cmd_applicable(lun->be_lun->lun_type, entry)) { 7437 one->support = 3; 7438 scsi_ulto2b(entry->length, one->cdb_length); 7439 one->cdb_usage[0] = opcode; 7440 memcpy(&one->cdb_usage[1], entry->usage, 7441 entry->length - 1); 7442 } else 7443 one->support = 1; 7444 break; 7445 } 7446 7447 ctl_set_success(ctsio); 7448 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7449 ctsio->be_move_done = ctl_config_move_done; 7450 ctl_datamove((union ctl_io *)ctsio); 7451 return(retval); 7452} 7453 7454int 7455ctl_report_supported_tmf(struct ctl_scsiio *ctsio) 7456{ 7457 struct scsi_report_supported_tmf *cdb; 7458 struct scsi_report_supported_tmf_data *data; 7459 int retval; 7460 int alloc_len, total_len; 7461 7462 CTL_DEBUG_PRINT(("ctl_report_supported_tmf\n")); 7463 7464 cdb = (struct scsi_report_supported_tmf *)ctsio->cdb; 7465 7466 retval = CTL_RETVAL_COMPLETE; 7467 7468 total_len = sizeof(struct scsi_report_supported_tmf_data); 7469 alloc_len = scsi_4btoul(cdb->length); 7470 7471 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7472 7473 ctsio->kern_sg_entries = 0; 7474 7475 if (total_len < alloc_len) { 7476 ctsio->residual = alloc_len - total_len; 7477 ctsio->kern_data_len = total_len; 7478 ctsio->kern_total_len = total_len; 7479 } else { 7480 ctsio->residual = 0; 7481 ctsio->kern_data_len = alloc_len; 7482 ctsio->kern_total_len = alloc_len; 7483 } 7484 ctsio->kern_data_resid = 0; 7485 ctsio->kern_rel_offset = 0; 7486 7487 data = (struct scsi_report_supported_tmf_data *)ctsio->kern_data_ptr; 7488 data->byte1 |= RST_ATS | RST_ATSS | RST_CTSS | RST_LURS | RST_QTS | 7489 RST_TRS; 7490 data->byte2 |= RST_QAES | RST_QTSS | RST_ITNRS; 7491 7492 ctl_set_success(ctsio); 7493 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7494 ctsio->be_move_done = ctl_config_move_done; 7495 ctl_datamove((union ctl_io *)ctsio); 7496 return (retval); 7497} 7498 7499int 7500ctl_report_timestamp(struct ctl_scsiio *ctsio) 7501{ 7502 struct scsi_report_timestamp *cdb; 7503 struct scsi_report_timestamp_data *data; 7504 struct timeval tv; 7505 int64_t timestamp; 7506 int retval; 7507 int alloc_len, total_len; 7508 7509 CTL_DEBUG_PRINT(("ctl_report_timestamp\n")); 7510 7511 cdb = (struct scsi_report_timestamp *)ctsio->cdb; 7512 7513 retval = CTL_RETVAL_COMPLETE; 7514 7515 total_len = sizeof(struct scsi_report_timestamp_data); 7516 alloc_len = scsi_4btoul(cdb->length); 7517 7518 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7519 7520 ctsio->kern_sg_entries = 0; 7521 7522 if (total_len < alloc_len) { 7523 ctsio->residual = alloc_len - total_len; 7524 ctsio->kern_data_len = total_len; 7525 ctsio->kern_total_len = total_len; 7526 } else { 7527 ctsio->residual = 0; 7528 ctsio->kern_data_len = alloc_len; 7529 ctsio->kern_total_len = alloc_len; 7530 } 7531 ctsio->kern_data_resid = 0; 7532 ctsio->kern_rel_offset = 0; 7533 7534 data = (struct scsi_report_timestamp_data *)ctsio->kern_data_ptr; 7535 scsi_ulto2b(sizeof(*data) - 2, data->length); 7536 data->origin = RTS_ORIG_OUTSIDE; 7537 getmicrotime(&tv); 7538 timestamp = (int64_t)tv.tv_sec * 1000 + tv.tv_usec / 1000; 7539 scsi_ulto4b(timestamp >> 16, data->timestamp); 7540 scsi_ulto2b(timestamp & 0xffff, &data->timestamp[4]); 7541 7542 ctl_set_success(ctsio); 7543 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7544 ctsio->be_move_done = ctl_config_move_done; 7545 ctl_datamove((union ctl_io *)ctsio); 7546 return (retval); 7547} 7548 7549int 7550ctl_persistent_reserve_in(struct ctl_scsiio *ctsio) 7551{ 7552 struct scsi_per_res_in *cdb; 7553 int alloc_len, total_len = 0; 7554 /* struct scsi_per_res_in_rsrv in_data; */ 7555 struct ctl_lun *lun; 7556 struct ctl_softc *softc; 7557 uint64_t key; 7558 7559 CTL_DEBUG_PRINT(("ctl_persistent_reserve_in\n")); 7560 7561 cdb = (struct scsi_per_res_in *)ctsio->cdb; 7562 7563 alloc_len = scsi_2btoul(cdb->length); 7564 7565 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7566 softc = lun->ctl_softc; 7567 7568retry: 7569 mtx_lock(&lun->lun_lock); 7570 switch (cdb->action) { 7571 case SPRI_RK: /* read keys */ 7572 total_len = sizeof(struct scsi_per_res_in_keys) + 7573 lun->pr_key_count * 7574 sizeof(struct scsi_per_res_key); 7575 break; 7576 case SPRI_RR: /* read reservation */ 7577 if (lun->flags & CTL_LUN_PR_RESERVED) 7578 total_len = sizeof(struct scsi_per_res_in_rsrv); 7579 else 7580 total_len = sizeof(struct scsi_per_res_in_header); 7581 break; 7582 case SPRI_RC: /* report capabilities */ 7583 total_len = sizeof(struct scsi_per_res_cap); 7584 break; 7585 case SPRI_RS: /* read full status */ 7586 total_len = sizeof(struct scsi_per_res_in_header) + 7587 (sizeof(struct scsi_per_res_in_full_desc) + 256) * 7588 lun->pr_key_count; 7589 break; 7590 default: 7591 panic("%s: Invalid PR type %#x", __func__, cdb->action); 7592 } 7593 mtx_unlock(&lun->lun_lock); 7594 7595 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7596 7597 if (total_len < alloc_len) { 7598 ctsio->residual = alloc_len - total_len; 7599 ctsio->kern_data_len = total_len; 7600 ctsio->kern_total_len = total_len; 7601 } else { 7602 ctsio->residual = 0; 7603 ctsio->kern_data_len = alloc_len; 7604 ctsio->kern_total_len = alloc_len; 7605 } 7606 7607 ctsio->kern_data_resid = 0; 7608 ctsio->kern_rel_offset = 0; 7609 ctsio->kern_sg_entries = 0; 7610 7611 mtx_lock(&lun->lun_lock); 7612 switch (cdb->action) { 7613 case SPRI_RK: { // read keys 7614 struct scsi_per_res_in_keys *res_keys; 7615 int i, key_count; 7616 7617 res_keys = (struct scsi_per_res_in_keys*)ctsio->kern_data_ptr; 7618 7619 /* 7620 * We had to drop the lock to allocate our buffer, which 7621 * leaves time for someone to come in with another 7622 * persistent reservation. (That is unlikely, though, 7623 * since this should be the only persistent reservation 7624 * command active right now.) 7625 */ 7626 if (total_len != (sizeof(struct scsi_per_res_in_keys) + 7627 (lun->pr_key_count * 7628 sizeof(struct scsi_per_res_key)))){ 7629 mtx_unlock(&lun->lun_lock); 7630 free(ctsio->kern_data_ptr, M_CTL); 7631 printf("%s: reservation length changed, retrying\n", 7632 __func__); 7633 goto retry; 7634 } 7635 7636 scsi_ulto4b(lun->pr_generation, res_keys->header.generation); 7637 7638 scsi_ulto4b(sizeof(struct scsi_per_res_key) * 7639 lun->pr_key_count, res_keys->header.length); 7640 7641 for (i = 0, key_count = 0; i < CTL_MAX_INITIATORS; i++) { 7642 if ((key = ctl_get_prkey(lun, i)) == 0) 7643 continue; 7644 7645 /* 7646 * We used lun->pr_key_count to calculate the 7647 * size to allocate. If it turns out the number of 7648 * initiators with the registered flag set is 7649 * larger than that (i.e. they haven't been kept in 7650 * sync), we've got a problem. 7651 */ 7652 if (key_count >= lun->pr_key_count) { 7653 key_count++; 7654 continue; 7655 } 7656 scsi_u64to8b(key, res_keys->keys[key_count].key); 7657 key_count++; 7658 } 7659 break; 7660 } 7661 case SPRI_RR: { // read reservation 7662 struct scsi_per_res_in_rsrv *res; 7663 int tmp_len, header_only; 7664 7665 res = (struct scsi_per_res_in_rsrv *)ctsio->kern_data_ptr; 7666 7667 scsi_ulto4b(lun->pr_generation, res->header.generation); 7668 7669 if (lun->flags & CTL_LUN_PR_RESERVED) 7670 { 7671 tmp_len = sizeof(struct scsi_per_res_in_rsrv); 7672 scsi_ulto4b(sizeof(struct scsi_per_res_in_rsrv_data), 7673 res->header.length); 7674 header_only = 0; 7675 } else { 7676 tmp_len = sizeof(struct scsi_per_res_in_header); 7677 scsi_ulto4b(0, res->header.length); 7678 header_only = 1; 7679 } 7680 7681 /* 7682 * We had to drop the lock to allocate our buffer, which 7683 * leaves time for someone to come in with another 7684 * persistent reservation. (That is unlikely, though, 7685 * since this should be the only persistent reservation 7686 * command active right now.) 7687 */ 7688 if (tmp_len != total_len) { 7689 mtx_unlock(&lun->lun_lock); 7690 free(ctsio->kern_data_ptr, M_CTL); 7691 printf("%s: reservation status changed, retrying\n", 7692 __func__); 7693 goto retry; 7694 } 7695 7696 /* 7697 * No reservation held, so we're done. 7698 */ 7699 if (header_only != 0) 7700 break; 7701 7702 /* 7703 * If the registration is an All Registrants type, the key 7704 * is 0, since it doesn't really matter. 7705 */ 7706 if (lun->pr_res_idx != CTL_PR_ALL_REGISTRANTS) { 7707 scsi_u64to8b(ctl_get_prkey(lun, lun->pr_res_idx), 7708 res->data.reservation); 7709 } 7710 res->data.scopetype = lun->pr_res_type; 7711 break; 7712 } 7713 case SPRI_RC: //report capabilities 7714 { 7715 struct scsi_per_res_cap *res_cap; 7716 uint16_t type_mask; 7717 7718 res_cap = (struct scsi_per_res_cap *)ctsio->kern_data_ptr; 7719 scsi_ulto2b(sizeof(*res_cap), res_cap->length); 7720 res_cap->flags1 = SPRI_CRH; 7721 res_cap->flags2 = SPRI_TMV | SPRI_ALLOW_5; 7722 type_mask = SPRI_TM_WR_EX_AR | 7723 SPRI_TM_EX_AC_RO | 7724 SPRI_TM_WR_EX_RO | 7725 SPRI_TM_EX_AC | 7726 SPRI_TM_WR_EX | 7727 SPRI_TM_EX_AC_AR; 7728 scsi_ulto2b(type_mask, res_cap->type_mask); 7729 break; 7730 } 7731 case SPRI_RS: { // read full status 7732 struct scsi_per_res_in_full *res_status; 7733 struct scsi_per_res_in_full_desc *res_desc; 7734 struct ctl_port *port; 7735 int i, len; 7736 7737 res_status = (struct scsi_per_res_in_full*)ctsio->kern_data_ptr; 7738 7739 /* 7740 * We had to drop the lock to allocate our buffer, which 7741 * leaves time for someone to come in with another 7742 * persistent reservation. (That is unlikely, though, 7743 * since this should be the only persistent reservation 7744 * command active right now.) 7745 */ 7746 if (total_len < (sizeof(struct scsi_per_res_in_header) + 7747 (sizeof(struct scsi_per_res_in_full_desc) + 256) * 7748 lun->pr_key_count)){ 7749 mtx_unlock(&lun->lun_lock); 7750 free(ctsio->kern_data_ptr, M_CTL); 7751 printf("%s: reservation length changed, retrying\n", 7752 __func__); 7753 goto retry; 7754 } 7755 7756 scsi_ulto4b(lun->pr_generation, res_status->header.generation); 7757 7758 res_desc = &res_status->desc[0]; 7759 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 7760 if ((key = ctl_get_prkey(lun, i)) == 0) 7761 continue; 7762 7763 scsi_u64to8b(key, res_desc->res_key.key); 7764 if ((lun->flags & CTL_LUN_PR_RESERVED) && 7765 (lun->pr_res_idx == i || 7766 lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS)) { 7767 res_desc->flags = SPRI_FULL_R_HOLDER; 7768 res_desc->scopetype = lun->pr_res_type; 7769 } 7770 scsi_ulto2b(i / CTL_MAX_INIT_PER_PORT, 7771 res_desc->rel_trgt_port_id); 7772 len = 0; 7773 port = softc->ctl_ports[i / CTL_MAX_INIT_PER_PORT]; 7774 if (port != NULL) 7775 len = ctl_create_iid(port, 7776 i % CTL_MAX_INIT_PER_PORT, 7777 res_desc->transport_id); 7778 scsi_ulto4b(len, res_desc->additional_length); 7779 res_desc = (struct scsi_per_res_in_full_desc *) 7780 &res_desc->transport_id[len]; 7781 } 7782 scsi_ulto4b((uint8_t *)res_desc - (uint8_t *)&res_status->desc[0], 7783 res_status->header.length); 7784 break; 7785 } 7786 default: 7787 panic("%s: Invalid PR type %#x", __func__, cdb->action); 7788 } 7789 mtx_unlock(&lun->lun_lock); 7790 7791 ctl_set_success(ctsio); 7792 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7793 ctsio->be_move_done = ctl_config_move_done; 7794 ctl_datamove((union ctl_io *)ctsio); 7795 return (CTL_RETVAL_COMPLETE); 7796} 7797 7798/* 7799 * Returns 0 if ctl_persistent_reserve_out() should continue, non-zero if 7800 * it should return. 7801 */ 7802static int 7803ctl_pro_preempt(struct ctl_softc *softc, struct ctl_lun *lun, uint64_t res_key, 7804 uint64_t sa_res_key, uint8_t type, uint32_t residx, 7805 struct ctl_scsiio *ctsio, struct scsi_per_res_out *cdb, 7806 struct scsi_per_res_out_parms* param) 7807{ 7808 union ctl_ha_msg persis_io; 7809 int i; 7810 7811 mtx_lock(&lun->lun_lock); 7812 if (sa_res_key == 0) { 7813 if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS) { 7814 /* validate scope and type */ 7815 if ((cdb->scope_type & SPR_SCOPE_MASK) != 7816 SPR_LU_SCOPE) { 7817 mtx_unlock(&lun->lun_lock); 7818 ctl_set_invalid_field(/*ctsio*/ ctsio, 7819 /*sks_valid*/ 1, 7820 /*command*/ 1, 7821 /*field*/ 2, 7822 /*bit_valid*/ 1, 7823 /*bit*/ 4); 7824 ctl_done((union ctl_io *)ctsio); 7825 return (1); 7826 } 7827 7828 if (type>8 || type==2 || type==4 || type==0) { 7829 mtx_unlock(&lun->lun_lock); 7830 ctl_set_invalid_field(/*ctsio*/ ctsio, 7831 /*sks_valid*/ 1, 7832 /*command*/ 1, 7833 /*field*/ 2, 7834 /*bit_valid*/ 1, 7835 /*bit*/ 0); 7836 ctl_done((union ctl_io *)ctsio); 7837 return (1); 7838 } 7839 7840 /* 7841 * Unregister everybody else and build UA for 7842 * them 7843 */ 7844 for(i = 0; i < CTL_MAX_INITIATORS; i++) { 7845 if (i == residx || ctl_get_prkey(lun, i) == 0) 7846 continue; 7847 7848 ctl_clr_prkey(lun, i); 7849 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 7850 } 7851 lun->pr_key_count = 1; 7852 lun->pr_res_type = type; 7853 if (lun->pr_res_type != SPR_TYPE_WR_EX_AR && 7854 lun->pr_res_type != SPR_TYPE_EX_AC_AR) 7855 lun->pr_res_idx = residx; 7856 lun->pr_generation++; 7857 mtx_unlock(&lun->lun_lock); 7858 7859 /* send msg to other side */ 7860 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 7861 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 7862 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 7863 persis_io.pr.pr_info.residx = lun->pr_res_idx; 7864 persis_io.pr.pr_info.res_type = type; 7865 memcpy(persis_io.pr.pr_info.sa_res_key, 7866 param->serv_act_res_key, 7867 sizeof(param->serv_act_res_key)); 7868 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 7869 sizeof(persis_io.pr), M_WAITOK); 7870 } else { 7871 /* not all registrants */ 7872 mtx_unlock(&lun->lun_lock); 7873 free(ctsio->kern_data_ptr, M_CTL); 7874 ctl_set_invalid_field(ctsio, 7875 /*sks_valid*/ 1, 7876 /*command*/ 0, 7877 /*field*/ 8, 7878 /*bit_valid*/ 0, 7879 /*bit*/ 0); 7880 ctl_done((union ctl_io *)ctsio); 7881 return (1); 7882 } 7883 } else if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS 7884 || !(lun->flags & CTL_LUN_PR_RESERVED)) { 7885 int found = 0; 7886 7887 if (res_key == sa_res_key) { 7888 /* special case */ 7889 /* 7890 * The spec implies this is not good but doesn't 7891 * say what to do. There are two choices either 7892 * generate a res conflict or check condition 7893 * with illegal field in parameter data. Since 7894 * that is what is done when the sa_res_key is 7895 * zero I'll take that approach since this has 7896 * to do with the sa_res_key. 7897 */ 7898 mtx_unlock(&lun->lun_lock); 7899 free(ctsio->kern_data_ptr, M_CTL); 7900 ctl_set_invalid_field(ctsio, 7901 /*sks_valid*/ 1, 7902 /*command*/ 0, 7903 /*field*/ 8, 7904 /*bit_valid*/ 0, 7905 /*bit*/ 0); 7906 ctl_done((union ctl_io *)ctsio); 7907 return (1); 7908 } 7909 7910 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 7911 if (ctl_get_prkey(lun, i) != sa_res_key) 7912 continue; 7913 7914 found = 1; 7915 ctl_clr_prkey(lun, i); 7916 lun->pr_key_count--; 7917 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 7918 } 7919 if (!found) { 7920 mtx_unlock(&lun->lun_lock); 7921 free(ctsio->kern_data_ptr, M_CTL); 7922 ctl_set_reservation_conflict(ctsio); 7923 ctl_done((union ctl_io *)ctsio); 7924 return (CTL_RETVAL_COMPLETE); 7925 } 7926 lun->pr_generation++; 7927 mtx_unlock(&lun->lun_lock); 7928 7929 /* send msg to other side */ 7930 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 7931 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 7932 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 7933 persis_io.pr.pr_info.residx = lun->pr_res_idx; 7934 persis_io.pr.pr_info.res_type = type; 7935 memcpy(persis_io.pr.pr_info.sa_res_key, 7936 param->serv_act_res_key, 7937 sizeof(param->serv_act_res_key)); 7938 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 7939 sizeof(persis_io.pr), M_WAITOK); 7940 } else { 7941 /* Reserved but not all registrants */ 7942 /* sa_res_key is res holder */ 7943 if (sa_res_key == ctl_get_prkey(lun, lun->pr_res_idx)) { 7944 /* validate scope and type */ 7945 if ((cdb->scope_type & SPR_SCOPE_MASK) != 7946 SPR_LU_SCOPE) { 7947 mtx_unlock(&lun->lun_lock); 7948 ctl_set_invalid_field(/*ctsio*/ ctsio, 7949 /*sks_valid*/ 1, 7950 /*command*/ 1, 7951 /*field*/ 2, 7952 /*bit_valid*/ 1, 7953 /*bit*/ 4); 7954 ctl_done((union ctl_io *)ctsio); 7955 return (1); 7956 } 7957 7958 if (type>8 || type==2 || type==4 || type==0) { 7959 mtx_unlock(&lun->lun_lock); 7960 ctl_set_invalid_field(/*ctsio*/ ctsio, 7961 /*sks_valid*/ 1, 7962 /*command*/ 1, 7963 /*field*/ 2, 7964 /*bit_valid*/ 1, 7965 /*bit*/ 0); 7966 ctl_done((union ctl_io *)ctsio); 7967 return (1); 7968 } 7969 7970 /* 7971 * Do the following: 7972 * if sa_res_key != res_key remove all 7973 * registrants w/sa_res_key and generate UA 7974 * for these registrants(Registrations 7975 * Preempted) if it wasn't an exclusive 7976 * reservation generate UA(Reservations 7977 * Preempted) for all other registered nexuses 7978 * if the type has changed. Establish the new 7979 * reservation and holder. If res_key and 7980 * sa_res_key are the same do the above 7981 * except don't unregister the res holder. 7982 */ 7983 7984 for(i = 0; i < CTL_MAX_INITIATORS; i++) { 7985 if (i == residx || ctl_get_prkey(lun, i) == 0) 7986 continue; 7987 7988 if (sa_res_key == ctl_get_prkey(lun, i)) { 7989 ctl_clr_prkey(lun, i); 7990 lun->pr_key_count--; 7991 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 7992 } else if (type != lun->pr_res_type && 7993 (lun->pr_res_type == SPR_TYPE_WR_EX_RO || 7994 lun->pr_res_type == SPR_TYPE_EX_AC_RO)) { 7995 ctl_est_ua(lun, i, CTL_UA_RES_RELEASE); 7996 } 7997 } 7998 lun->pr_res_type = type; 7999 if (lun->pr_res_type != SPR_TYPE_WR_EX_AR && 8000 lun->pr_res_type != SPR_TYPE_EX_AC_AR) 8001 lun->pr_res_idx = residx; 8002 else 8003 lun->pr_res_idx = CTL_PR_ALL_REGISTRANTS; 8004 lun->pr_generation++; 8005 mtx_unlock(&lun->lun_lock); 8006 8007 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8008 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8009 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 8010 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8011 persis_io.pr.pr_info.res_type = type; 8012 memcpy(persis_io.pr.pr_info.sa_res_key, 8013 param->serv_act_res_key, 8014 sizeof(param->serv_act_res_key)); 8015 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8016 sizeof(persis_io.pr), M_WAITOK); 8017 } else { 8018 /* 8019 * sa_res_key is not the res holder just 8020 * remove registrants 8021 */ 8022 int found=0; 8023 8024 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 8025 if (sa_res_key != ctl_get_prkey(lun, i)) 8026 continue; 8027 8028 found = 1; 8029 ctl_clr_prkey(lun, i); 8030 lun->pr_key_count--; 8031 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 8032 } 8033 8034 if (!found) { 8035 mtx_unlock(&lun->lun_lock); 8036 free(ctsio->kern_data_ptr, M_CTL); 8037 ctl_set_reservation_conflict(ctsio); 8038 ctl_done((union ctl_io *)ctsio); 8039 return (1); 8040 } 8041 lun->pr_generation++; 8042 mtx_unlock(&lun->lun_lock); 8043 8044 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8045 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8046 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 8047 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8048 persis_io.pr.pr_info.res_type = type; 8049 memcpy(persis_io.pr.pr_info.sa_res_key, 8050 param->serv_act_res_key, 8051 sizeof(param->serv_act_res_key)); 8052 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8053 sizeof(persis_io.pr), M_WAITOK); 8054 } 8055 } 8056 return (0); 8057} 8058 8059static void 8060ctl_pro_preempt_other(struct ctl_lun *lun, union ctl_ha_msg *msg) 8061{ 8062 uint64_t sa_res_key; 8063 int i; 8064 8065 sa_res_key = scsi_8btou64(msg->pr.pr_info.sa_res_key); 8066 8067 if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS 8068 || lun->pr_res_idx == CTL_PR_NO_RESERVATION 8069 || sa_res_key != ctl_get_prkey(lun, lun->pr_res_idx)) { 8070 if (sa_res_key == 0) { 8071 /* 8072 * Unregister everybody else and build UA for 8073 * them 8074 */ 8075 for(i = 0; i < CTL_MAX_INITIATORS; i++) { 8076 if (i == msg->pr.pr_info.residx || 8077 ctl_get_prkey(lun, i) == 0) 8078 continue; 8079 8080 ctl_clr_prkey(lun, i); 8081 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 8082 } 8083 8084 lun->pr_key_count = 1; 8085 lun->pr_res_type = msg->pr.pr_info.res_type; 8086 if (lun->pr_res_type != SPR_TYPE_WR_EX_AR && 8087 lun->pr_res_type != SPR_TYPE_EX_AC_AR) 8088 lun->pr_res_idx = msg->pr.pr_info.residx; 8089 } else { 8090 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 8091 if (sa_res_key == ctl_get_prkey(lun, i)) 8092 continue; 8093 8094 ctl_clr_prkey(lun, i); 8095 lun->pr_key_count--; 8096 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 8097 } 8098 } 8099 } else { 8100 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 8101 if (i == msg->pr.pr_info.residx || 8102 ctl_get_prkey(lun, i) == 0) 8103 continue; 8104 8105 if (sa_res_key == ctl_get_prkey(lun, i)) { 8106 ctl_clr_prkey(lun, i); 8107 lun->pr_key_count--; 8108 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 8109 } else if (msg->pr.pr_info.res_type != lun->pr_res_type 8110 && (lun->pr_res_type == SPR_TYPE_WR_EX_RO || 8111 lun->pr_res_type == SPR_TYPE_EX_AC_RO)) { 8112 ctl_est_ua(lun, i, CTL_UA_RES_RELEASE); 8113 } 8114 } 8115 lun->pr_res_type = msg->pr.pr_info.res_type; 8116 if (lun->pr_res_type != SPR_TYPE_WR_EX_AR && 8117 lun->pr_res_type != SPR_TYPE_EX_AC_AR) 8118 lun->pr_res_idx = msg->pr.pr_info.residx; 8119 else 8120 lun->pr_res_idx = CTL_PR_ALL_REGISTRANTS; 8121 } 8122 lun->pr_generation++; 8123 8124} 8125 8126 8127int 8128ctl_persistent_reserve_out(struct ctl_scsiio *ctsio) 8129{ 8130 int retval; 8131 u_int32_t param_len; 8132 struct scsi_per_res_out *cdb; 8133 struct ctl_lun *lun; 8134 struct scsi_per_res_out_parms* param; 8135 struct ctl_softc *softc; 8136 uint32_t residx; 8137 uint64_t res_key, sa_res_key, key; 8138 uint8_t type; 8139 union ctl_ha_msg persis_io; 8140 int i; 8141 8142 CTL_DEBUG_PRINT(("ctl_persistent_reserve_out\n")); 8143 8144 retval = CTL_RETVAL_COMPLETE; 8145 8146 cdb = (struct scsi_per_res_out *)ctsio->cdb; 8147 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 8148 softc = lun->ctl_softc; 8149 8150 /* 8151 * We only support whole-LUN scope. The scope & type are ignored for 8152 * register, register and ignore existing key and clear. 8153 * We sometimes ignore scope and type on preempts too!! 8154 * Verify reservation type here as well. 8155 */ 8156 type = cdb->scope_type & SPR_TYPE_MASK; 8157 if ((cdb->action == SPRO_RESERVE) 8158 || (cdb->action == SPRO_RELEASE)) { 8159 if ((cdb->scope_type & SPR_SCOPE_MASK) != SPR_LU_SCOPE) { 8160 ctl_set_invalid_field(/*ctsio*/ ctsio, 8161 /*sks_valid*/ 1, 8162 /*command*/ 1, 8163 /*field*/ 2, 8164 /*bit_valid*/ 1, 8165 /*bit*/ 4); 8166 ctl_done((union ctl_io *)ctsio); 8167 return (CTL_RETVAL_COMPLETE); 8168 } 8169 8170 if (type>8 || type==2 || type==4 || type==0) { 8171 ctl_set_invalid_field(/*ctsio*/ ctsio, 8172 /*sks_valid*/ 1, 8173 /*command*/ 1, 8174 /*field*/ 2, 8175 /*bit_valid*/ 1, 8176 /*bit*/ 0); 8177 ctl_done((union ctl_io *)ctsio); 8178 return (CTL_RETVAL_COMPLETE); 8179 } 8180 } 8181 8182 param_len = scsi_4btoul(cdb->length); 8183 8184 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 8185 ctsio->kern_data_ptr = malloc(param_len, M_CTL, M_WAITOK); 8186 ctsio->kern_data_len = param_len; 8187 ctsio->kern_total_len = param_len; 8188 ctsio->kern_data_resid = 0; 8189 ctsio->kern_rel_offset = 0; 8190 ctsio->kern_sg_entries = 0; 8191 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 8192 ctsio->be_move_done = ctl_config_move_done; 8193 ctl_datamove((union ctl_io *)ctsio); 8194 8195 return (CTL_RETVAL_COMPLETE); 8196 } 8197 8198 param = (struct scsi_per_res_out_parms *)ctsio->kern_data_ptr; 8199 8200 residx = ctl_get_initindex(&ctsio->io_hdr.nexus); 8201 res_key = scsi_8btou64(param->res_key.key); 8202 sa_res_key = scsi_8btou64(param->serv_act_res_key); 8203 8204 /* 8205 * Validate the reservation key here except for SPRO_REG_IGNO 8206 * This must be done for all other service actions 8207 */ 8208 if ((cdb->action & SPRO_ACTION_MASK) != SPRO_REG_IGNO) { 8209 mtx_lock(&lun->lun_lock); 8210 if ((key = ctl_get_prkey(lun, residx)) != 0) { 8211 if (res_key != key) { 8212 /* 8213 * The current key passed in doesn't match 8214 * the one the initiator previously 8215 * registered. 8216 */ 8217 mtx_unlock(&lun->lun_lock); 8218 free(ctsio->kern_data_ptr, M_CTL); 8219 ctl_set_reservation_conflict(ctsio); 8220 ctl_done((union ctl_io *)ctsio); 8221 return (CTL_RETVAL_COMPLETE); 8222 } 8223 } else if ((cdb->action & SPRO_ACTION_MASK) != SPRO_REGISTER) { 8224 /* 8225 * We are not registered 8226 */ 8227 mtx_unlock(&lun->lun_lock); 8228 free(ctsio->kern_data_ptr, M_CTL); 8229 ctl_set_reservation_conflict(ctsio); 8230 ctl_done((union ctl_io *)ctsio); 8231 return (CTL_RETVAL_COMPLETE); 8232 } else if (res_key != 0) { 8233 /* 8234 * We are not registered and trying to register but 8235 * the register key isn't zero. 8236 */ 8237 mtx_unlock(&lun->lun_lock); 8238 free(ctsio->kern_data_ptr, M_CTL); 8239 ctl_set_reservation_conflict(ctsio); 8240 ctl_done((union ctl_io *)ctsio); 8241 return (CTL_RETVAL_COMPLETE); 8242 } 8243 mtx_unlock(&lun->lun_lock); 8244 } 8245 8246 switch (cdb->action & SPRO_ACTION_MASK) { 8247 case SPRO_REGISTER: 8248 case SPRO_REG_IGNO: { 8249 8250#if 0 8251 printf("Registration received\n"); 8252#endif 8253 8254 /* 8255 * We don't support any of these options, as we report in 8256 * the read capabilities request (see 8257 * ctl_persistent_reserve_in(), above). 8258 */ 8259 if ((param->flags & SPR_SPEC_I_PT) 8260 || (param->flags & SPR_ALL_TG_PT) 8261 || (param->flags & SPR_APTPL)) { 8262 int bit_ptr; 8263 8264 if (param->flags & SPR_APTPL) 8265 bit_ptr = 0; 8266 else if (param->flags & SPR_ALL_TG_PT) 8267 bit_ptr = 2; 8268 else /* SPR_SPEC_I_PT */ 8269 bit_ptr = 3; 8270 8271 free(ctsio->kern_data_ptr, M_CTL); 8272 ctl_set_invalid_field(ctsio, 8273 /*sks_valid*/ 1, 8274 /*command*/ 0, 8275 /*field*/ 20, 8276 /*bit_valid*/ 1, 8277 /*bit*/ bit_ptr); 8278 ctl_done((union ctl_io *)ctsio); 8279 return (CTL_RETVAL_COMPLETE); 8280 } 8281 8282 mtx_lock(&lun->lun_lock); 8283 8284 /* 8285 * The initiator wants to clear the 8286 * key/unregister. 8287 */ 8288 if (sa_res_key == 0) { 8289 if ((res_key == 0 8290 && (cdb->action & SPRO_ACTION_MASK) == SPRO_REGISTER) 8291 || ((cdb->action & SPRO_ACTION_MASK) == SPRO_REG_IGNO 8292 && ctl_get_prkey(lun, residx) == 0)) { 8293 mtx_unlock(&lun->lun_lock); 8294 goto done; 8295 } 8296 8297 ctl_clr_prkey(lun, residx); 8298 lun->pr_key_count--; 8299 8300 if (residx == lun->pr_res_idx) { 8301 lun->flags &= ~CTL_LUN_PR_RESERVED; 8302 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8303 8304 if ((lun->pr_res_type == SPR_TYPE_WR_EX_RO || 8305 lun->pr_res_type == SPR_TYPE_EX_AC_RO) && 8306 lun->pr_key_count) { 8307 /* 8308 * If the reservation is a registrants 8309 * only type we need to generate a UA 8310 * for other registered inits. The 8311 * sense code should be RESERVATIONS 8312 * RELEASED 8313 */ 8314 8315 for (i = softc->init_min; i < softc->init_max; i++){ 8316 if (ctl_get_prkey(lun, i) == 0) 8317 continue; 8318 ctl_est_ua(lun, i, 8319 CTL_UA_RES_RELEASE); 8320 } 8321 } 8322 lun->pr_res_type = 0; 8323 } else if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS) { 8324 if (lun->pr_key_count==0) { 8325 lun->flags &= ~CTL_LUN_PR_RESERVED; 8326 lun->pr_res_type = 0; 8327 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8328 } 8329 } 8330 lun->pr_generation++; 8331 mtx_unlock(&lun->lun_lock); 8332 8333 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8334 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8335 persis_io.pr.pr_info.action = CTL_PR_UNREG_KEY; 8336 persis_io.pr.pr_info.residx = residx; 8337 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8338 sizeof(persis_io.pr), M_WAITOK); 8339 } else /* sa_res_key != 0 */ { 8340 8341 /* 8342 * If we aren't registered currently then increment 8343 * the key count and set the registered flag. 8344 */ 8345 ctl_alloc_prkey(lun, residx); 8346 if (ctl_get_prkey(lun, residx) == 0) 8347 lun->pr_key_count++; 8348 ctl_set_prkey(lun, residx, sa_res_key); 8349 lun->pr_generation++; 8350 mtx_unlock(&lun->lun_lock); 8351 8352 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8353 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8354 persis_io.pr.pr_info.action = CTL_PR_REG_KEY; 8355 persis_io.pr.pr_info.residx = residx; 8356 memcpy(persis_io.pr.pr_info.sa_res_key, 8357 param->serv_act_res_key, 8358 sizeof(param->serv_act_res_key)); 8359 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8360 sizeof(persis_io.pr), M_WAITOK); 8361 } 8362 8363 break; 8364 } 8365 case SPRO_RESERVE: 8366#if 0 8367 printf("Reserve executed type %d\n", type); 8368#endif 8369 mtx_lock(&lun->lun_lock); 8370 if (lun->flags & CTL_LUN_PR_RESERVED) { 8371 /* 8372 * if this isn't the reservation holder and it's 8373 * not a "all registrants" type or if the type is 8374 * different then we have a conflict 8375 */ 8376 if ((lun->pr_res_idx != residx 8377 && lun->pr_res_idx != CTL_PR_ALL_REGISTRANTS) 8378 || lun->pr_res_type != type) { 8379 mtx_unlock(&lun->lun_lock); 8380 free(ctsio->kern_data_ptr, M_CTL); 8381 ctl_set_reservation_conflict(ctsio); 8382 ctl_done((union ctl_io *)ctsio); 8383 return (CTL_RETVAL_COMPLETE); 8384 } 8385 mtx_unlock(&lun->lun_lock); 8386 } else /* create a reservation */ { 8387 /* 8388 * If it's not an "all registrants" type record 8389 * reservation holder 8390 */ 8391 if (type != SPR_TYPE_WR_EX_AR 8392 && type != SPR_TYPE_EX_AC_AR) 8393 lun->pr_res_idx = residx; /* Res holder */ 8394 else 8395 lun->pr_res_idx = CTL_PR_ALL_REGISTRANTS; 8396 8397 lun->flags |= CTL_LUN_PR_RESERVED; 8398 lun->pr_res_type = type; 8399 8400 mtx_unlock(&lun->lun_lock); 8401 8402 /* send msg to other side */ 8403 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8404 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8405 persis_io.pr.pr_info.action = CTL_PR_RESERVE; 8406 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8407 persis_io.pr.pr_info.res_type = type; 8408 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8409 sizeof(persis_io.pr), M_WAITOK); 8410 } 8411 break; 8412 8413 case SPRO_RELEASE: 8414 mtx_lock(&lun->lun_lock); 8415 if ((lun->flags & CTL_LUN_PR_RESERVED) == 0) { 8416 /* No reservation exists return good status */ 8417 mtx_unlock(&lun->lun_lock); 8418 goto done; 8419 } 8420 /* 8421 * Is this nexus a reservation holder? 8422 */ 8423 if (lun->pr_res_idx != residx 8424 && lun->pr_res_idx != CTL_PR_ALL_REGISTRANTS) { 8425 /* 8426 * not a res holder return good status but 8427 * do nothing 8428 */ 8429 mtx_unlock(&lun->lun_lock); 8430 goto done; 8431 } 8432 8433 if (lun->pr_res_type != type) { 8434 mtx_unlock(&lun->lun_lock); 8435 free(ctsio->kern_data_ptr, M_CTL); 8436 ctl_set_illegal_pr_release(ctsio); 8437 ctl_done((union ctl_io *)ctsio); 8438 return (CTL_RETVAL_COMPLETE); 8439 } 8440 8441 /* okay to release */ 8442 lun->flags &= ~CTL_LUN_PR_RESERVED; 8443 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8444 lun->pr_res_type = 0; 8445 8446 /* 8447 * if this isn't an exclusive access 8448 * res generate UA for all other 8449 * registrants. 8450 */ 8451 if (type != SPR_TYPE_EX_AC 8452 && type != SPR_TYPE_WR_EX) { 8453 for (i = softc->init_min; i < softc->init_max; i++) { 8454 if (i == residx || ctl_get_prkey(lun, i) == 0) 8455 continue; 8456 ctl_est_ua(lun, i, CTL_UA_RES_RELEASE); 8457 } 8458 } 8459 mtx_unlock(&lun->lun_lock); 8460 8461 /* Send msg to other side */ 8462 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8463 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8464 persis_io.pr.pr_info.action = CTL_PR_RELEASE; 8465 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8466 sizeof(persis_io.pr), M_WAITOK); 8467 break; 8468 8469 case SPRO_CLEAR: 8470 /* send msg to other side */ 8471 8472 mtx_lock(&lun->lun_lock); 8473 lun->flags &= ~CTL_LUN_PR_RESERVED; 8474 lun->pr_res_type = 0; 8475 lun->pr_key_count = 0; 8476 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8477 8478 ctl_clr_prkey(lun, residx); 8479 for (i = 0; i < CTL_MAX_INITIATORS; i++) 8480 if (ctl_get_prkey(lun, i) != 0) { 8481 ctl_clr_prkey(lun, i); 8482 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 8483 } 8484 lun->pr_generation++; 8485 mtx_unlock(&lun->lun_lock); 8486 8487 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8488 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8489 persis_io.pr.pr_info.action = CTL_PR_CLEAR; 8490 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8491 sizeof(persis_io.pr), M_WAITOK); 8492 break; 8493 8494 case SPRO_PREEMPT: 8495 case SPRO_PRE_ABO: { 8496 int nretval; 8497 8498 nretval = ctl_pro_preempt(softc, lun, res_key, sa_res_key, type, 8499 residx, ctsio, cdb, param); 8500 if (nretval != 0) 8501 return (CTL_RETVAL_COMPLETE); 8502 break; 8503 } 8504 default: 8505 panic("%s: Invalid PR type %#x", __func__, cdb->action); 8506 } 8507 8508done: 8509 free(ctsio->kern_data_ptr, M_CTL); 8510 ctl_set_success(ctsio); 8511 ctl_done((union ctl_io *)ctsio); 8512 8513 return (retval); 8514} 8515 8516/* 8517 * This routine is for handling a message from the other SC pertaining to 8518 * persistent reserve out. All the error checking will have been done 8519 * so only perorming the action need be done here to keep the two 8520 * in sync. 8521 */ 8522static void 8523ctl_hndl_per_res_out_on_other_sc(union ctl_ha_msg *msg) 8524{ 8525 struct ctl_softc *softc = control_softc; 8526 struct ctl_lun *lun; 8527 int i; 8528 uint32_t residx, targ_lun; 8529 8530 targ_lun = msg->hdr.nexus.targ_mapped_lun; 8531 mtx_lock(&softc->ctl_lock); 8532 if ((targ_lun >= CTL_MAX_LUNS) || 8533 ((lun = softc->ctl_luns[targ_lun]) == NULL)) { 8534 mtx_unlock(&softc->ctl_lock); 8535 return; 8536 } 8537 mtx_lock(&lun->lun_lock); 8538 mtx_unlock(&softc->ctl_lock); 8539 if (lun->flags & CTL_LUN_DISABLED) { 8540 mtx_unlock(&lun->lun_lock); 8541 return; 8542 } 8543 residx = ctl_get_initindex(&msg->hdr.nexus); 8544 switch(msg->pr.pr_info.action) { 8545 case CTL_PR_REG_KEY: 8546 ctl_alloc_prkey(lun, msg->pr.pr_info.residx); 8547 if (ctl_get_prkey(lun, msg->pr.pr_info.residx) == 0) 8548 lun->pr_key_count++; 8549 ctl_set_prkey(lun, msg->pr.pr_info.residx, 8550 scsi_8btou64(msg->pr.pr_info.sa_res_key)); 8551 lun->pr_generation++; 8552 break; 8553 8554 case CTL_PR_UNREG_KEY: 8555 ctl_clr_prkey(lun, msg->pr.pr_info.residx); 8556 lun->pr_key_count--; 8557 8558 /* XXX Need to see if the reservation has been released */ 8559 /* if so do we need to generate UA? */ 8560 if (msg->pr.pr_info.residx == lun->pr_res_idx) { 8561 lun->flags &= ~CTL_LUN_PR_RESERVED; 8562 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8563 8564 if ((lun->pr_res_type == SPR_TYPE_WR_EX_RO || 8565 lun->pr_res_type == SPR_TYPE_EX_AC_RO) && 8566 lun->pr_key_count) { 8567 /* 8568 * If the reservation is a registrants 8569 * only type we need to generate a UA 8570 * for other registered inits. The 8571 * sense code should be RESERVATIONS 8572 * RELEASED 8573 */ 8574 8575 for (i = softc->init_min; i < softc->init_max; i++) { 8576 if (ctl_get_prkey(lun, i) == 0) 8577 continue; 8578 8579 ctl_est_ua(lun, i, CTL_UA_RES_RELEASE); 8580 } 8581 } 8582 lun->pr_res_type = 0; 8583 } else if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS) { 8584 if (lun->pr_key_count==0) { 8585 lun->flags &= ~CTL_LUN_PR_RESERVED; 8586 lun->pr_res_type = 0; 8587 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8588 } 8589 } 8590 lun->pr_generation++; 8591 break; 8592 8593 case CTL_PR_RESERVE: 8594 lun->flags |= CTL_LUN_PR_RESERVED; 8595 lun->pr_res_type = msg->pr.pr_info.res_type; 8596 lun->pr_res_idx = msg->pr.pr_info.residx; 8597 8598 break; 8599 8600 case CTL_PR_RELEASE: 8601 /* 8602 * if this isn't an exclusive access res generate UA for all 8603 * other registrants. 8604 */ 8605 if (lun->pr_res_type != SPR_TYPE_EX_AC && 8606 lun->pr_res_type != SPR_TYPE_WR_EX) { 8607 for (i = softc->init_min; i < softc->init_max; i++) 8608 if (i == residx || ctl_get_prkey(lun, i) == 0) 8609 continue; 8610 ctl_est_ua(lun, i, CTL_UA_RES_RELEASE); 8611 } 8612 8613 lun->flags &= ~CTL_LUN_PR_RESERVED; 8614 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8615 lun->pr_res_type = 0; 8616 break; 8617 8618 case CTL_PR_PREEMPT: 8619 ctl_pro_preempt_other(lun, msg); 8620 break; 8621 case CTL_PR_CLEAR: 8622 lun->flags &= ~CTL_LUN_PR_RESERVED; 8623 lun->pr_res_type = 0; 8624 lun->pr_key_count = 0; 8625 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8626 8627 for (i=0; i < CTL_MAX_INITIATORS; i++) { 8628 if (ctl_get_prkey(lun, i) == 0) 8629 continue; 8630 ctl_clr_prkey(lun, i); 8631 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 8632 } 8633 lun->pr_generation++; 8634 break; 8635 } 8636 8637 mtx_unlock(&lun->lun_lock); 8638} 8639 8640int 8641ctl_read_write(struct ctl_scsiio *ctsio) 8642{ 8643 struct ctl_lun *lun; 8644 struct ctl_lba_len_flags *lbalen; 8645 uint64_t lba; 8646 uint32_t num_blocks; 8647 int flags, retval; 8648 int isread; 8649 8650 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 8651 8652 CTL_DEBUG_PRINT(("ctl_read_write: command: %#x\n", ctsio->cdb[0])); 8653 8654 flags = 0; 8655 isread = ctsio->cdb[0] == READ_6 || ctsio->cdb[0] == READ_10 8656 || ctsio->cdb[0] == READ_12 || ctsio->cdb[0] == READ_16; 8657 switch (ctsio->cdb[0]) { 8658 case READ_6: 8659 case WRITE_6: { 8660 struct scsi_rw_6 *cdb; 8661 8662 cdb = (struct scsi_rw_6 *)ctsio->cdb; 8663 8664 lba = scsi_3btoul(cdb->addr); 8665 /* only 5 bits are valid in the most significant address byte */ 8666 lba &= 0x1fffff; 8667 num_blocks = cdb->length; 8668 /* 8669 * This is correct according to SBC-2. 8670 */ 8671 if (num_blocks == 0) 8672 num_blocks = 256; 8673 break; 8674 } 8675 case READ_10: 8676 case WRITE_10: { 8677 struct scsi_rw_10 *cdb; 8678 8679 cdb = (struct scsi_rw_10 *)ctsio->cdb; 8680 if (cdb->byte2 & SRW10_FUA) 8681 flags |= CTL_LLF_FUA; 8682 if (cdb->byte2 & SRW10_DPO) 8683 flags |= CTL_LLF_DPO; 8684 lba = scsi_4btoul(cdb->addr); 8685 num_blocks = scsi_2btoul(cdb->length); 8686 break; 8687 } 8688 case WRITE_VERIFY_10: { 8689 struct scsi_write_verify_10 *cdb; 8690 8691 cdb = (struct scsi_write_verify_10 *)ctsio->cdb; 8692 flags |= CTL_LLF_FUA; 8693 if (cdb->byte2 & SWV_DPO) 8694 flags |= CTL_LLF_DPO; 8695 lba = scsi_4btoul(cdb->addr); 8696 num_blocks = scsi_2btoul(cdb->length); 8697 break; 8698 } 8699 case READ_12: 8700 case WRITE_12: { 8701 struct scsi_rw_12 *cdb; 8702 8703 cdb = (struct scsi_rw_12 *)ctsio->cdb; 8704 if (cdb->byte2 & SRW12_FUA) 8705 flags |= CTL_LLF_FUA; 8706 if (cdb->byte2 & SRW12_DPO) 8707 flags |= CTL_LLF_DPO; 8708 lba = scsi_4btoul(cdb->addr); 8709 num_blocks = scsi_4btoul(cdb->length); 8710 break; 8711 } 8712 case WRITE_VERIFY_12: { 8713 struct scsi_write_verify_12 *cdb; 8714 8715 cdb = (struct scsi_write_verify_12 *)ctsio->cdb; 8716 flags |= CTL_LLF_FUA; 8717 if (cdb->byte2 & SWV_DPO) 8718 flags |= CTL_LLF_DPO; 8719 lba = scsi_4btoul(cdb->addr); 8720 num_blocks = scsi_4btoul(cdb->length); 8721 break; 8722 } 8723 case READ_16: 8724 case WRITE_16: { 8725 struct scsi_rw_16 *cdb; 8726 8727 cdb = (struct scsi_rw_16 *)ctsio->cdb; 8728 if (cdb->byte2 & SRW12_FUA) 8729 flags |= CTL_LLF_FUA; 8730 if (cdb->byte2 & SRW12_DPO) 8731 flags |= CTL_LLF_DPO; 8732 lba = scsi_8btou64(cdb->addr); 8733 num_blocks = scsi_4btoul(cdb->length); 8734 break; 8735 } 8736 case WRITE_ATOMIC_16: { 8737 struct scsi_write_atomic_16 *cdb; 8738 8739 if (lun->be_lun->atomicblock == 0) { 8740 ctl_set_invalid_opcode(ctsio); 8741 ctl_done((union ctl_io *)ctsio); 8742 return (CTL_RETVAL_COMPLETE); 8743 } 8744 8745 cdb = (struct scsi_write_atomic_16 *)ctsio->cdb; 8746 if (cdb->byte2 & SRW12_FUA) 8747 flags |= CTL_LLF_FUA; 8748 if (cdb->byte2 & SRW12_DPO) 8749 flags |= CTL_LLF_DPO; 8750 lba = scsi_8btou64(cdb->addr); 8751 num_blocks = scsi_2btoul(cdb->length); 8752 if (num_blocks > lun->be_lun->atomicblock) { 8753 ctl_set_invalid_field(ctsio, /*sks_valid*/ 1, 8754 /*command*/ 1, /*field*/ 12, /*bit_valid*/ 0, 8755 /*bit*/ 0); 8756 ctl_done((union ctl_io *)ctsio); 8757 return (CTL_RETVAL_COMPLETE); 8758 } 8759 break; 8760 } 8761 case WRITE_VERIFY_16: { 8762 struct scsi_write_verify_16 *cdb; 8763 8764 cdb = (struct scsi_write_verify_16 *)ctsio->cdb; 8765 flags |= CTL_LLF_FUA; 8766 if (cdb->byte2 & SWV_DPO) 8767 flags |= CTL_LLF_DPO; 8768 lba = scsi_8btou64(cdb->addr); 8769 num_blocks = scsi_4btoul(cdb->length); 8770 break; 8771 } 8772 default: 8773 /* 8774 * We got a command we don't support. This shouldn't 8775 * happen, commands should be filtered out above us. 8776 */ 8777 ctl_set_invalid_opcode(ctsio); 8778 ctl_done((union ctl_io *)ctsio); 8779 8780 return (CTL_RETVAL_COMPLETE); 8781 break; /* NOTREACHED */ 8782 } 8783 8784 /* 8785 * The first check is to make sure we're in bounds, the second 8786 * check is to catch wrap-around problems. If the lba + num blocks 8787 * is less than the lba, then we've wrapped around and the block 8788 * range is invalid anyway. 8789 */ 8790 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 8791 || ((lba + num_blocks) < lba)) { 8792 ctl_set_lba_out_of_range(ctsio); 8793 ctl_done((union ctl_io *)ctsio); 8794 return (CTL_RETVAL_COMPLETE); 8795 } 8796 8797 /* 8798 * According to SBC-3, a transfer length of 0 is not an error. 8799 * Note that this cannot happen with WRITE(6) or READ(6), since 0 8800 * translates to 256 blocks for those commands. 8801 */ 8802 if (num_blocks == 0) { 8803 ctl_set_success(ctsio); 8804 ctl_done((union ctl_io *)ctsio); 8805 return (CTL_RETVAL_COMPLETE); 8806 } 8807 8808 /* Set FUA and/or DPO if caches are disabled. */ 8809 if (isread) { 8810 if ((lun->mode_pages.caching_page[CTL_PAGE_CURRENT].flags1 & 8811 SCP_RCD) != 0) 8812 flags |= CTL_LLF_FUA | CTL_LLF_DPO; 8813 } else { 8814 if ((lun->mode_pages.caching_page[CTL_PAGE_CURRENT].flags1 & 8815 SCP_WCE) == 0) 8816 flags |= CTL_LLF_FUA; 8817 } 8818 8819 lbalen = (struct ctl_lba_len_flags *) 8820 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 8821 lbalen->lba = lba; 8822 lbalen->len = num_blocks; 8823 lbalen->flags = (isread ? CTL_LLF_READ : CTL_LLF_WRITE) | flags; 8824 8825 ctsio->kern_total_len = num_blocks * lun->be_lun->blocksize; 8826 ctsio->kern_rel_offset = 0; 8827 8828 CTL_DEBUG_PRINT(("ctl_read_write: calling data_submit()\n")); 8829 8830 retval = lun->backend->data_submit((union ctl_io *)ctsio); 8831 return (retval); 8832} 8833 8834static int 8835ctl_cnw_cont(union ctl_io *io) 8836{ 8837 struct ctl_scsiio *ctsio; 8838 struct ctl_lun *lun; 8839 struct ctl_lba_len_flags *lbalen; 8840 int retval; 8841 8842 ctsio = &io->scsiio; 8843 ctsio->io_hdr.status = CTL_STATUS_NONE; 8844 ctsio->io_hdr.flags &= ~CTL_FLAG_IO_CONT; 8845 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 8846 lbalen = (struct ctl_lba_len_flags *) 8847 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 8848 lbalen->flags &= ~CTL_LLF_COMPARE; 8849 lbalen->flags |= CTL_LLF_WRITE; 8850 8851 CTL_DEBUG_PRINT(("ctl_cnw_cont: calling data_submit()\n")); 8852 retval = lun->backend->data_submit((union ctl_io *)ctsio); 8853 return (retval); 8854} 8855 8856int 8857ctl_cnw(struct ctl_scsiio *ctsio) 8858{ 8859 struct ctl_lun *lun; 8860 struct ctl_lba_len_flags *lbalen; 8861 uint64_t lba; 8862 uint32_t num_blocks; 8863 int flags, retval; 8864 8865 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 8866 8867 CTL_DEBUG_PRINT(("ctl_cnw: command: %#x\n", ctsio->cdb[0])); 8868 8869 flags = 0; 8870 switch (ctsio->cdb[0]) { 8871 case COMPARE_AND_WRITE: { 8872 struct scsi_compare_and_write *cdb; 8873 8874 cdb = (struct scsi_compare_and_write *)ctsio->cdb; 8875 if (cdb->byte2 & SRW10_FUA) 8876 flags |= CTL_LLF_FUA; 8877 if (cdb->byte2 & SRW10_DPO) 8878 flags |= CTL_LLF_DPO; 8879 lba = scsi_8btou64(cdb->addr); 8880 num_blocks = cdb->length; 8881 break; 8882 } 8883 default: 8884 /* 8885 * We got a command we don't support. This shouldn't 8886 * happen, commands should be filtered out above us. 8887 */ 8888 ctl_set_invalid_opcode(ctsio); 8889 ctl_done((union ctl_io *)ctsio); 8890 8891 return (CTL_RETVAL_COMPLETE); 8892 break; /* NOTREACHED */ 8893 } 8894 8895 /* 8896 * The first check is to make sure we're in bounds, the second 8897 * check is to catch wrap-around problems. If the lba + num blocks 8898 * is less than the lba, then we've wrapped around and the block 8899 * range is invalid anyway. 8900 */ 8901 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 8902 || ((lba + num_blocks) < lba)) { 8903 ctl_set_lba_out_of_range(ctsio); 8904 ctl_done((union ctl_io *)ctsio); 8905 return (CTL_RETVAL_COMPLETE); 8906 } 8907 8908 /* 8909 * According to SBC-3, a transfer length of 0 is not an error. 8910 */ 8911 if (num_blocks == 0) { 8912 ctl_set_success(ctsio); 8913 ctl_done((union ctl_io *)ctsio); 8914 return (CTL_RETVAL_COMPLETE); 8915 } 8916 8917 /* Set FUA if write cache is disabled. */ 8918 if ((lun->mode_pages.caching_page[CTL_PAGE_CURRENT].flags1 & 8919 SCP_WCE) == 0) 8920 flags |= CTL_LLF_FUA; 8921 8922 ctsio->kern_total_len = 2 * num_blocks * lun->be_lun->blocksize; 8923 ctsio->kern_rel_offset = 0; 8924 8925 /* 8926 * Set the IO_CONT flag, so that if this I/O gets passed to 8927 * ctl_data_submit_done(), it'll get passed back to 8928 * ctl_ctl_cnw_cont() for further processing. 8929 */ 8930 ctsio->io_hdr.flags |= CTL_FLAG_IO_CONT; 8931 ctsio->io_cont = ctl_cnw_cont; 8932 8933 lbalen = (struct ctl_lba_len_flags *) 8934 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 8935 lbalen->lba = lba; 8936 lbalen->len = num_blocks; 8937 lbalen->flags = CTL_LLF_COMPARE | flags; 8938 8939 CTL_DEBUG_PRINT(("ctl_cnw: calling data_submit()\n")); 8940 retval = lun->backend->data_submit((union ctl_io *)ctsio); 8941 return (retval); 8942} 8943 8944int 8945ctl_verify(struct ctl_scsiio *ctsio) 8946{ 8947 struct ctl_lun *lun; 8948 struct ctl_lba_len_flags *lbalen; 8949 uint64_t lba; 8950 uint32_t num_blocks; 8951 int bytchk, flags; 8952 int retval; 8953 8954 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 8955 8956 CTL_DEBUG_PRINT(("ctl_verify: command: %#x\n", ctsio->cdb[0])); 8957 8958 bytchk = 0; 8959 flags = CTL_LLF_FUA; 8960 switch (ctsio->cdb[0]) { 8961 case VERIFY_10: { 8962 struct scsi_verify_10 *cdb; 8963 8964 cdb = (struct scsi_verify_10 *)ctsio->cdb; 8965 if (cdb->byte2 & SVFY_BYTCHK) 8966 bytchk = 1; 8967 if (cdb->byte2 & SVFY_DPO) 8968 flags |= CTL_LLF_DPO; 8969 lba = scsi_4btoul(cdb->addr); 8970 num_blocks = scsi_2btoul(cdb->length); 8971 break; 8972 } 8973 case VERIFY_12: { 8974 struct scsi_verify_12 *cdb; 8975 8976 cdb = (struct scsi_verify_12 *)ctsio->cdb; 8977 if (cdb->byte2 & SVFY_BYTCHK) 8978 bytchk = 1; 8979 if (cdb->byte2 & SVFY_DPO) 8980 flags |= CTL_LLF_DPO; 8981 lba = scsi_4btoul(cdb->addr); 8982 num_blocks = scsi_4btoul(cdb->length); 8983 break; 8984 } 8985 case VERIFY_16: { 8986 struct scsi_rw_16 *cdb; 8987 8988 cdb = (struct scsi_rw_16 *)ctsio->cdb; 8989 if (cdb->byte2 & SVFY_BYTCHK) 8990 bytchk = 1; 8991 if (cdb->byte2 & SVFY_DPO) 8992 flags |= CTL_LLF_DPO; 8993 lba = scsi_8btou64(cdb->addr); 8994 num_blocks = scsi_4btoul(cdb->length); 8995 break; 8996 } 8997 default: 8998 /* 8999 * We got a command we don't support. This shouldn't 9000 * happen, commands should be filtered out above us. 9001 */ 9002 ctl_set_invalid_opcode(ctsio); 9003 ctl_done((union ctl_io *)ctsio); 9004 return (CTL_RETVAL_COMPLETE); 9005 } 9006 9007 /* 9008 * The first check is to make sure we're in bounds, the second 9009 * check is to catch wrap-around problems. If the lba + num blocks 9010 * is less than the lba, then we've wrapped around and the block 9011 * range is invalid anyway. 9012 */ 9013 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 9014 || ((lba + num_blocks) < lba)) { 9015 ctl_set_lba_out_of_range(ctsio); 9016 ctl_done((union ctl_io *)ctsio); 9017 return (CTL_RETVAL_COMPLETE); 9018 } 9019 9020 /* 9021 * According to SBC-3, a transfer length of 0 is not an error. 9022 */ 9023 if (num_blocks == 0) { 9024 ctl_set_success(ctsio); 9025 ctl_done((union ctl_io *)ctsio); 9026 return (CTL_RETVAL_COMPLETE); 9027 } 9028 9029 lbalen = (struct ctl_lba_len_flags *) 9030 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 9031 lbalen->lba = lba; 9032 lbalen->len = num_blocks; 9033 if (bytchk) { 9034 lbalen->flags = CTL_LLF_COMPARE | flags; 9035 ctsio->kern_total_len = num_blocks * lun->be_lun->blocksize; 9036 } else { 9037 lbalen->flags = CTL_LLF_VERIFY | flags; 9038 ctsio->kern_total_len = 0; 9039 } 9040 ctsio->kern_rel_offset = 0; 9041 9042 CTL_DEBUG_PRINT(("ctl_verify: calling data_submit()\n")); 9043 retval = lun->backend->data_submit((union ctl_io *)ctsio); 9044 return (retval); 9045} 9046 9047int 9048ctl_report_luns(struct ctl_scsiio *ctsio) 9049{ 9050 struct ctl_softc *softc; 9051 struct scsi_report_luns *cdb; 9052 struct scsi_report_luns_data *lun_data; 9053 struct ctl_lun *lun, *request_lun; 9054 struct ctl_port *port; 9055 int num_luns, retval; 9056 uint32_t alloc_len, lun_datalen; 9057 int num_filled; 9058 uint32_t initidx, targ_lun_id, lun_id; 9059 9060 retval = CTL_RETVAL_COMPLETE; 9061 cdb = (struct scsi_report_luns *)ctsio->cdb; 9062 port = ctl_io_port(&ctsio->io_hdr); 9063 softc = port->ctl_softc; 9064 9065 CTL_DEBUG_PRINT(("ctl_report_luns\n")); 9066 9067 mtx_lock(&softc->ctl_lock); 9068 num_luns = 0; 9069 for (targ_lun_id = 0; targ_lun_id < CTL_MAX_LUNS; targ_lun_id++) { 9070 if (ctl_lun_map_from_port(port, targ_lun_id) < CTL_MAX_LUNS) 9071 num_luns++; 9072 } 9073 mtx_unlock(&softc->ctl_lock); 9074 9075 switch (cdb->select_report) { 9076 case RPL_REPORT_DEFAULT: 9077 case RPL_REPORT_ALL: 9078 case RPL_REPORT_NONSUBSID: 9079 break; 9080 case RPL_REPORT_WELLKNOWN: 9081 case RPL_REPORT_ADMIN: 9082 case RPL_REPORT_CONGLOM: 9083 num_luns = 0; 9084 break; 9085 default: 9086 ctl_set_invalid_field(ctsio, 9087 /*sks_valid*/ 1, 9088 /*command*/ 1, 9089 /*field*/ 2, 9090 /*bit_valid*/ 0, 9091 /*bit*/ 0); 9092 ctl_done((union ctl_io *)ctsio); 9093 return (retval); 9094 break; /* NOTREACHED */ 9095 } 9096 9097 alloc_len = scsi_4btoul(cdb->length); 9098 /* 9099 * The initiator has to allocate at least 16 bytes for this request, 9100 * so he can at least get the header and the first LUN. Otherwise 9101 * we reject the request (per SPC-3 rev 14, section 6.21). 9102 */ 9103 if (alloc_len < (sizeof(struct scsi_report_luns_data) + 9104 sizeof(struct scsi_report_luns_lundata))) { 9105 ctl_set_invalid_field(ctsio, 9106 /*sks_valid*/ 1, 9107 /*command*/ 1, 9108 /*field*/ 6, 9109 /*bit_valid*/ 0, 9110 /*bit*/ 0); 9111 ctl_done((union ctl_io *)ctsio); 9112 return (retval); 9113 } 9114 9115 request_lun = (struct ctl_lun *) 9116 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9117 9118 lun_datalen = sizeof(*lun_data) + 9119 (num_luns * sizeof(struct scsi_report_luns_lundata)); 9120 9121 ctsio->kern_data_ptr = malloc(lun_datalen, M_CTL, M_WAITOK | M_ZERO); 9122 lun_data = (struct scsi_report_luns_data *)ctsio->kern_data_ptr; 9123 ctsio->kern_sg_entries = 0; 9124 9125 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 9126 9127 mtx_lock(&softc->ctl_lock); 9128 for (targ_lun_id = 0, num_filled = 0; targ_lun_id < CTL_MAX_LUNS && num_filled < num_luns; targ_lun_id++) { 9129 lun_id = ctl_lun_map_from_port(port, targ_lun_id); 9130 if (lun_id >= CTL_MAX_LUNS) 9131 continue; 9132 lun = softc->ctl_luns[lun_id]; 9133 if (lun == NULL) 9134 continue; 9135 9136 be64enc(lun_data->luns[num_filled++].lundata, 9137 ctl_encode_lun(targ_lun_id)); 9138 9139 /* 9140 * According to SPC-3, rev 14 section 6.21: 9141 * 9142 * "The execution of a REPORT LUNS command to any valid and 9143 * installed logical unit shall clear the REPORTED LUNS DATA 9144 * HAS CHANGED unit attention condition for all logical 9145 * units of that target with respect to the requesting 9146 * initiator. A valid and installed logical unit is one 9147 * having a PERIPHERAL QUALIFIER of 000b in the standard 9148 * INQUIRY data (see 6.4.2)." 9149 * 9150 * If request_lun is NULL, the LUN this report luns command 9151 * was issued to is either disabled or doesn't exist. In that 9152 * case, we shouldn't clear any pending lun change unit 9153 * attention. 9154 */ 9155 if (request_lun != NULL) { 9156 mtx_lock(&lun->lun_lock); 9157 ctl_clr_ua(lun, initidx, CTL_UA_LUN_CHANGE); 9158 mtx_unlock(&lun->lun_lock); 9159 } 9160 } 9161 mtx_unlock(&softc->ctl_lock); 9162 9163 /* 9164 * It's quite possible that we've returned fewer LUNs than we allocated 9165 * space for. Trim it. 9166 */ 9167 lun_datalen = sizeof(*lun_data) + 9168 (num_filled * sizeof(struct scsi_report_luns_lundata)); 9169 9170 if (lun_datalen < alloc_len) { 9171 ctsio->residual = alloc_len - lun_datalen; 9172 ctsio->kern_data_len = lun_datalen; 9173 ctsio->kern_total_len = lun_datalen; 9174 } else { 9175 ctsio->residual = 0; 9176 ctsio->kern_data_len = alloc_len; 9177 ctsio->kern_total_len = alloc_len; 9178 } 9179 ctsio->kern_data_resid = 0; 9180 ctsio->kern_rel_offset = 0; 9181 ctsio->kern_sg_entries = 0; 9182 9183 /* 9184 * We set this to the actual data length, regardless of how much 9185 * space we actually have to return results. If the user looks at 9186 * this value, he'll know whether or not he allocated enough space 9187 * and reissue the command if necessary. We don't support well 9188 * known logical units, so if the user asks for that, return none. 9189 */ 9190 scsi_ulto4b(lun_datalen - 8, lun_data->length); 9191 9192 /* 9193 * We can only return SCSI_STATUS_CHECK_COND when we can't satisfy 9194 * this request. 9195 */ 9196 ctl_set_success(ctsio); 9197 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9198 ctsio->be_move_done = ctl_config_move_done; 9199 ctl_datamove((union ctl_io *)ctsio); 9200 return (retval); 9201} 9202 9203int 9204ctl_request_sense(struct ctl_scsiio *ctsio) 9205{ 9206 struct scsi_request_sense *cdb; 9207 struct scsi_sense_data *sense_ptr; 9208 struct ctl_softc *ctl_softc; 9209 struct ctl_lun *lun; 9210 uint32_t initidx; 9211 int have_error; 9212 scsi_sense_data_type sense_format; 9213 ctl_ua_type ua_type; 9214 uint8_t asc = 0, ascq = 0; 9215 9216 cdb = (struct scsi_request_sense *)ctsio->cdb; 9217 9218 ctl_softc = control_softc; 9219 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9220 9221 CTL_DEBUG_PRINT(("ctl_request_sense\n")); 9222 9223 /* 9224 * Determine which sense format the user wants. 9225 */ 9226 if (cdb->byte2 & SRS_DESC) 9227 sense_format = SSD_TYPE_DESC; 9228 else 9229 sense_format = SSD_TYPE_FIXED; 9230 9231 ctsio->kern_data_ptr = malloc(sizeof(*sense_ptr), M_CTL, M_WAITOK); 9232 sense_ptr = (struct scsi_sense_data *)ctsio->kern_data_ptr; 9233 ctsio->kern_sg_entries = 0; 9234 9235 /* 9236 * struct scsi_sense_data, which is currently set to 256 bytes, is 9237 * larger than the largest allowed value for the length field in the 9238 * REQUEST SENSE CDB, which is 252 bytes as of SPC-4. 9239 */ 9240 ctsio->residual = 0; 9241 ctsio->kern_data_len = cdb->length; 9242 ctsio->kern_total_len = cdb->length; 9243 9244 ctsio->kern_data_resid = 0; 9245 ctsio->kern_rel_offset = 0; 9246 ctsio->kern_sg_entries = 0; 9247 9248 /* 9249 * If we don't have a LUN, we don't have any pending sense. 9250 */ 9251 if (lun == NULL) 9252 goto no_sense; 9253 9254 have_error = 0; 9255 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 9256 /* 9257 * Check for pending sense, and then for pending unit attentions. 9258 * Pending sense gets returned first, then pending unit attentions. 9259 */ 9260 mtx_lock(&lun->lun_lock); 9261#ifdef CTL_WITH_CA 9262 if (ctl_is_set(lun->have_ca, initidx)) { 9263 scsi_sense_data_type stored_format; 9264 9265 /* 9266 * Check to see which sense format was used for the stored 9267 * sense data. 9268 */ 9269 stored_format = scsi_sense_type(&lun->pending_sense[initidx]); 9270 9271 /* 9272 * If the user requested a different sense format than the 9273 * one we stored, then we need to convert it to the other 9274 * format. If we're going from descriptor to fixed format 9275 * sense data, we may lose things in translation, depending 9276 * on what options were used. 9277 * 9278 * If the stored format is SSD_TYPE_NONE (i.e. invalid), 9279 * for some reason we'll just copy it out as-is. 9280 */ 9281 if ((stored_format == SSD_TYPE_FIXED) 9282 && (sense_format == SSD_TYPE_DESC)) 9283 ctl_sense_to_desc((struct scsi_sense_data_fixed *) 9284 &lun->pending_sense[initidx], 9285 (struct scsi_sense_data_desc *)sense_ptr); 9286 else if ((stored_format == SSD_TYPE_DESC) 9287 && (sense_format == SSD_TYPE_FIXED)) 9288 ctl_sense_to_fixed((struct scsi_sense_data_desc *) 9289 &lun->pending_sense[initidx], 9290 (struct scsi_sense_data_fixed *)sense_ptr); 9291 else 9292 memcpy(sense_ptr, &lun->pending_sense[initidx], 9293 MIN(sizeof(*sense_ptr), 9294 sizeof(lun->pending_sense[initidx]))); 9295 9296 ctl_clear_mask(lun->have_ca, initidx); 9297 have_error = 1; 9298 } else 9299#endif 9300 { 9301 ua_type = ctl_build_ua(lun, initidx, sense_ptr, sense_format); 9302 if (ua_type != CTL_UA_NONE) 9303 have_error = 1; 9304 if (ua_type == CTL_UA_LUN_CHANGE) { 9305 mtx_unlock(&lun->lun_lock); 9306 mtx_lock(&ctl_softc->ctl_lock); 9307 ctl_clr_ua_allluns(ctl_softc, initidx, ua_type); 9308 mtx_unlock(&ctl_softc->ctl_lock); 9309 mtx_lock(&lun->lun_lock); 9310 } 9311 9312 } 9313 mtx_unlock(&lun->lun_lock); 9314 9315 /* 9316 * We already have a pending error, return it. 9317 */ 9318 if (have_error != 0) { 9319 /* 9320 * We report the SCSI status as OK, since the status of the 9321 * request sense command itself is OK. 9322 * We report 0 for the sense length, because we aren't doing 9323 * autosense in this case. We're reporting sense as 9324 * parameter data. 9325 */ 9326 ctl_set_success(ctsio); 9327 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9328 ctsio->be_move_done = ctl_config_move_done; 9329 ctl_datamove((union ctl_io *)ctsio); 9330 return (CTL_RETVAL_COMPLETE); 9331 } 9332 9333 /* 9334 * No sense information to report, so we report that everything is 9335 * okay, unless we have allowed Informational Exception. 9336 */ 9337 if (lun->mode_pages.ie_page[CTL_PAGE_CURRENT].mrie != SIEP_MRIE_NO) { 9338 asc = lun->ie_asc; 9339 ascq = lun->ie_ascq; 9340 } 9341 9342no_sense: 9343 ctl_set_sense_data(sense_ptr, 9344 lun, 9345 sense_format, 9346 /*current_error*/ 1, 9347 /*sense_key*/ SSD_KEY_NO_SENSE, 9348 /*asc*/ asc, 9349 /*ascq*/ ascq, 9350 SSD_ELEM_NONE); 9351 9352 /* 9353 * We report 0 for the sense length, because we aren't doing 9354 * autosense in this case. We're reporting sense as parameter data. 9355 */ 9356 ctl_set_success(ctsio); 9357 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9358 ctsio->be_move_done = ctl_config_move_done; 9359 ctl_datamove((union ctl_io *)ctsio); 9360 return (CTL_RETVAL_COMPLETE); 9361} 9362 9363int 9364ctl_tur(struct ctl_scsiio *ctsio) 9365{ 9366 9367 CTL_DEBUG_PRINT(("ctl_tur\n")); 9368 9369 ctl_set_success(ctsio); 9370 ctl_done((union ctl_io *)ctsio); 9371 9372 return (CTL_RETVAL_COMPLETE); 9373} 9374 9375/* 9376 * SCSI VPD page 0x00, the Supported VPD Pages page. 9377 */ 9378static int 9379ctl_inquiry_evpd_supported(struct ctl_scsiio *ctsio, int alloc_len) 9380{ 9381 struct scsi_vpd_supported_pages *pages; 9382 int sup_page_size; 9383 struct ctl_lun *lun; 9384 int p; 9385 9386 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9387 9388 sup_page_size = sizeof(struct scsi_vpd_supported_pages) * 9389 SCSI_EVPD_NUM_SUPPORTED_PAGES; 9390 ctsio->kern_data_ptr = malloc(sup_page_size, M_CTL, M_WAITOK | M_ZERO); 9391 pages = (struct scsi_vpd_supported_pages *)ctsio->kern_data_ptr; 9392 ctsio->kern_sg_entries = 0; 9393 9394 if (sup_page_size < alloc_len) { 9395 ctsio->residual = alloc_len - sup_page_size; 9396 ctsio->kern_data_len = sup_page_size; 9397 ctsio->kern_total_len = sup_page_size; 9398 } else { 9399 ctsio->residual = 0; 9400 ctsio->kern_data_len = alloc_len; 9401 ctsio->kern_total_len = alloc_len; 9402 } 9403 ctsio->kern_data_resid = 0; 9404 ctsio->kern_rel_offset = 0; 9405 ctsio->kern_sg_entries = 0; 9406 9407 /* 9408 * The control device is always connected. The disk device, on the 9409 * other hand, may not be online all the time. Need to change this 9410 * to figure out whether the disk device is actually online or not. 9411 */ 9412 if (lun != NULL) 9413 pages->device = (SID_QUAL_LU_CONNECTED << 5) | 9414 lun->be_lun->lun_type; 9415 else 9416 pages->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9417 9418 p = 0; 9419 /* Supported VPD pages */ 9420 pages->page_list[p++] = SVPD_SUPPORTED_PAGES; 9421 /* Serial Number */ 9422 pages->page_list[p++] = SVPD_UNIT_SERIAL_NUMBER; 9423 /* Device Identification */ 9424 pages->page_list[p++] = SVPD_DEVICE_ID; 9425 /* Extended INQUIRY Data */ 9426 pages->page_list[p++] = SVPD_EXTENDED_INQUIRY_DATA; 9427 /* Mode Page Policy */ 9428 pages->page_list[p++] = SVPD_MODE_PAGE_POLICY; 9429 /* SCSI Ports */ 9430 pages->page_list[p++] = SVPD_SCSI_PORTS; 9431 /* Third-party Copy */ 9432 pages->page_list[p++] = SVPD_SCSI_TPC; 9433 if (lun != NULL && lun->be_lun->lun_type == T_DIRECT) { 9434 /* Block limits */ 9435 pages->page_list[p++] = SVPD_BLOCK_LIMITS; 9436 /* Block Device Characteristics */ 9437 pages->page_list[p++] = SVPD_BDC; 9438 /* Logical Block Provisioning */ 9439 pages->page_list[p++] = SVPD_LBP; 9440 } 9441 pages->length = p; 9442 9443 ctl_set_success(ctsio); 9444 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9445 ctsio->be_move_done = ctl_config_move_done; 9446 ctl_datamove((union ctl_io *)ctsio); 9447 return (CTL_RETVAL_COMPLETE); 9448} 9449 9450/* 9451 * SCSI VPD page 0x80, the Unit Serial Number page. 9452 */ 9453static int 9454ctl_inquiry_evpd_serial(struct ctl_scsiio *ctsio, int alloc_len) 9455{ 9456 struct scsi_vpd_unit_serial_number *sn_ptr; 9457 struct ctl_lun *lun; 9458 int data_len; 9459 9460 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9461 9462 data_len = 4 + CTL_SN_LEN; 9463 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9464 sn_ptr = (struct scsi_vpd_unit_serial_number *)ctsio->kern_data_ptr; 9465 if (data_len < alloc_len) { 9466 ctsio->residual = alloc_len - data_len; 9467 ctsio->kern_data_len = data_len; 9468 ctsio->kern_total_len = data_len; 9469 } else { 9470 ctsio->residual = 0; 9471 ctsio->kern_data_len = alloc_len; 9472 ctsio->kern_total_len = alloc_len; 9473 } 9474 ctsio->kern_data_resid = 0; 9475 ctsio->kern_rel_offset = 0; 9476 ctsio->kern_sg_entries = 0; 9477 9478 /* 9479 * The control device is always connected. The disk device, on the 9480 * other hand, may not be online all the time. Need to change this 9481 * to figure out whether the disk device is actually online or not. 9482 */ 9483 if (lun != NULL) 9484 sn_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9485 lun->be_lun->lun_type; 9486 else 9487 sn_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9488 9489 sn_ptr->page_code = SVPD_UNIT_SERIAL_NUMBER; 9490 sn_ptr->length = CTL_SN_LEN; 9491 /* 9492 * If we don't have a LUN, we just leave the serial number as 9493 * all spaces. 9494 */ 9495 if (lun != NULL) { 9496 strncpy((char *)sn_ptr->serial_num, 9497 (char *)lun->be_lun->serial_num, CTL_SN_LEN); 9498 } else 9499 memset(sn_ptr->serial_num, 0x20, CTL_SN_LEN); 9500 9501 ctl_set_success(ctsio); 9502 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9503 ctsio->be_move_done = ctl_config_move_done; 9504 ctl_datamove((union ctl_io *)ctsio); 9505 return (CTL_RETVAL_COMPLETE); 9506} 9507 9508 9509/* 9510 * SCSI VPD page 0x86, the Extended INQUIRY Data page. 9511 */ 9512static int 9513ctl_inquiry_evpd_eid(struct ctl_scsiio *ctsio, int alloc_len) 9514{ 9515 struct scsi_vpd_extended_inquiry_data *eid_ptr; 9516 struct ctl_lun *lun; 9517 int data_len; 9518 9519 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9520 9521 data_len = sizeof(struct scsi_vpd_extended_inquiry_data); 9522 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9523 eid_ptr = (struct scsi_vpd_extended_inquiry_data *)ctsio->kern_data_ptr; 9524 ctsio->kern_sg_entries = 0; 9525 9526 if (data_len < alloc_len) { 9527 ctsio->residual = alloc_len - data_len; 9528 ctsio->kern_data_len = data_len; 9529 ctsio->kern_total_len = data_len; 9530 } else { 9531 ctsio->residual = 0; 9532 ctsio->kern_data_len = alloc_len; 9533 ctsio->kern_total_len = alloc_len; 9534 } 9535 ctsio->kern_data_resid = 0; 9536 ctsio->kern_rel_offset = 0; 9537 ctsio->kern_sg_entries = 0; 9538 9539 /* 9540 * The control device is always connected. The disk device, on the 9541 * other hand, may not be online all the time. 9542 */ 9543 if (lun != NULL) 9544 eid_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9545 lun->be_lun->lun_type; 9546 else 9547 eid_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9548 eid_ptr->page_code = SVPD_EXTENDED_INQUIRY_DATA; 9549 scsi_ulto2b(data_len - 4, eid_ptr->page_length); 9550 /* 9551 * We support head of queue, ordered and simple tags. 9552 */ 9553 eid_ptr->flags2 = SVPD_EID_HEADSUP | SVPD_EID_ORDSUP | SVPD_EID_SIMPSUP; 9554 /* 9555 * Volatile cache supported. 9556 */ 9557 eid_ptr->flags3 = SVPD_EID_V_SUP; 9558 9559 /* 9560 * This means that we clear the REPORTED LUNS DATA HAS CHANGED unit 9561 * attention for a particular IT nexus on all LUNs once we report 9562 * it to that nexus once. This bit is required as of SPC-4. 9563 */ 9564 eid_ptr->flags4 = SVPD_EID_LUICLT; 9565 9566 /* 9567 * XXX KDM in order to correctly answer this, we would need 9568 * information from the SIM to determine how much sense data it 9569 * can send. So this would really be a path inquiry field, most 9570 * likely. This can be set to a maximum of 252 according to SPC-4, 9571 * but the hardware may or may not be able to support that much. 9572 * 0 just means that the maximum sense data length is not reported. 9573 */ 9574 eid_ptr->max_sense_length = 0; 9575 9576 ctl_set_success(ctsio); 9577 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9578 ctsio->be_move_done = ctl_config_move_done; 9579 ctl_datamove((union ctl_io *)ctsio); 9580 return (CTL_RETVAL_COMPLETE); 9581} 9582 9583static int 9584ctl_inquiry_evpd_mpp(struct ctl_scsiio *ctsio, int alloc_len) 9585{ 9586 struct scsi_vpd_mode_page_policy *mpp_ptr; 9587 struct ctl_lun *lun; 9588 int data_len; 9589 9590 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9591 9592 data_len = sizeof(struct scsi_vpd_mode_page_policy) + 9593 sizeof(struct scsi_vpd_mode_page_policy_descr); 9594 9595 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9596 mpp_ptr = (struct scsi_vpd_mode_page_policy *)ctsio->kern_data_ptr; 9597 ctsio->kern_sg_entries = 0; 9598 9599 if (data_len < alloc_len) { 9600 ctsio->residual = alloc_len - data_len; 9601 ctsio->kern_data_len = data_len; 9602 ctsio->kern_total_len = data_len; 9603 } else { 9604 ctsio->residual = 0; 9605 ctsio->kern_data_len = alloc_len; 9606 ctsio->kern_total_len = alloc_len; 9607 } 9608 ctsio->kern_data_resid = 0; 9609 ctsio->kern_rel_offset = 0; 9610 ctsio->kern_sg_entries = 0; 9611 9612 /* 9613 * The control device is always connected. The disk device, on the 9614 * other hand, may not be online all the time. 9615 */ 9616 if (lun != NULL) 9617 mpp_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9618 lun->be_lun->lun_type; 9619 else 9620 mpp_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9621 mpp_ptr->page_code = SVPD_MODE_PAGE_POLICY; 9622 scsi_ulto2b(data_len - 4, mpp_ptr->page_length); 9623 mpp_ptr->descr[0].page_code = 0x3f; 9624 mpp_ptr->descr[0].subpage_code = 0xff; 9625 mpp_ptr->descr[0].policy = SVPD_MPP_SHARED; 9626 9627 ctl_set_success(ctsio); 9628 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9629 ctsio->be_move_done = ctl_config_move_done; 9630 ctl_datamove((union ctl_io *)ctsio); 9631 return (CTL_RETVAL_COMPLETE); 9632} 9633 9634/* 9635 * SCSI VPD page 0x83, the Device Identification page. 9636 */ 9637static int 9638ctl_inquiry_evpd_devid(struct ctl_scsiio *ctsio, int alloc_len) 9639{ 9640 struct scsi_vpd_device_id *devid_ptr; 9641 struct scsi_vpd_id_descriptor *desc; 9642 struct ctl_softc *softc; 9643 struct ctl_lun *lun; 9644 struct ctl_port *port; 9645 int data_len, g; 9646 uint8_t proto; 9647 9648 softc = control_softc; 9649 9650 port = ctl_io_port(&ctsio->io_hdr); 9651 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9652 9653 data_len = sizeof(struct scsi_vpd_device_id) + 9654 sizeof(struct scsi_vpd_id_descriptor) + 9655 sizeof(struct scsi_vpd_id_rel_trgt_port_id) + 9656 sizeof(struct scsi_vpd_id_descriptor) + 9657 sizeof(struct scsi_vpd_id_trgt_port_grp_id); 9658 if (lun && lun->lun_devid) 9659 data_len += lun->lun_devid->len; 9660 if (port && port->port_devid) 9661 data_len += port->port_devid->len; 9662 if (port && port->target_devid) 9663 data_len += port->target_devid->len; 9664 9665 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9666 devid_ptr = (struct scsi_vpd_device_id *)ctsio->kern_data_ptr; 9667 ctsio->kern_sg_entries = 0; 9668 9669 if (data_len < alloc_len) { 9670 ctsio->residual = alloc_len - data_len; 9671 ctsio->kern_data_len = data_len; 9672 ctsio->kern_total_len = data_len; 9673 } else { 9674 ctsio->residual = 0; 9675 ctsio->kern_data_len = alloc_len; 9676 ctsio->kern_total_len = alloc_len; 9677 } 9678 ctsio->kern_data_resid = 0; 9679 ctsio->kern_rel_offset = 0; 9680 ctsio->kern_sg_entries = 0; 9681 9682 /* 9683 * The control device is always connected. The disk device, on the 9684 * other hand, may not be online all the time. 9685 */ 9686 if (lun != NULL) 9687 devid_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9688 lun->be_lun->lun_type; 9689 else 9690 devid_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9691 devid_ptr->page_code = SVPD_DEVICE_ID; 9692 scsi_ulto2b(data_len - 4, devid_ptr->length); 9693 9694 if (port && port->port_type == CTL_PORT_FC) 9695 proto = SCSI_PROTO_FC << 4; 9696 else if (port && port->port_type == CTL_PORT_ISCSI) 9697 proto = SCSI_PROTO_ISCSI << 4; 9698 else 9699 proto = SCSI_PROTO_SPI << 4; 9700 desc = (struct scsi_vpd_id_descriptor *)devid_ptr->desc_list; 9701 9702 /* 9703 * We're using a LUN association here. i.e., this device ID is a 9704 * per-LUN identifier. 9705 */ 9706 if (lun && lun->lun_devid) { 9707 memcpy(desc, lun->lun_devid->data, lun->lun_devid->len); 9708 desc = (struct scsi_vpd_id_descriptor *)((uint8_t *)desc + 9709 lun->lun_devid->len); 9710 } 9711 9712 /* 9713 * This is for the WWPN which is a port association. 9714 */ 9715 if (port && port->port_devid) { 9716 memcpy(desc, port->port_devid->data, port->port_devid->len); 9717 desc = (struct scsi_vpd_id_descriptor *)((uint8_t *)desc + 9718 port->port_devid->len); 9719 } 9720 9721 /* 9722 * This is for the Relative Target Port(type 4h) identifier 9723 */ 9724 desc->proto_codeset = proto | SVPD_ID_CODESET_BINARY; 9725 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_PORT | 9726 SVPD_ID_TYPE_RELTARG; 9727 desc->length = 4; 9728 scsi_ulto2b(ctsio->io_hdr.nexus.targ_port, &desc->identifier[2]); 9729 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 9730 sizeof(struct scsi_vpd_id_rel_trgt_port_id)); 9731 9732 /* 9733 * This is for the Target Port Group(type 5h) identifier 9734 */ 9735 desc->proto_codeset = proto | SVPD_ID_CODESET_BINARY; 9736 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_PORT | 9737 SVPD_ID_TYPE_TPORTGRP; 9738 desc->length = 4; 9739 if (softc->is_single || 9740 (port && port->status & CTL_PORT_STATUS_HA_SHARED)) 9741 g = 1; 9742 else 9743 g = 2 + ctsio->io_hdr.nexus.targ_port / softc->port_cnt; 9744 scsi_ulto2b(g, &desc->identifier[2]); 9745 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 9746 sizeof(struct scsi_vpd_id_trgt_port_grp_id)); 9747 9748 /* 9749 * This is for the Target identifier 9750 */ 9751 if (port && port->target_devid) { 9752 memcpy(desc, port->target_devid->data, port->target_devid->len); 9753 } 9754 9755 ctl_set_success(ctsio); 9756 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9757 ctsio->be_move_done = ctl_config_move_done; 9758 ctl_datamove((union ctl_io *)ctsio); 9759 return (CTL_RETVAL_COMPLETE); 9760} 9761 9762static int 9763ctl_inquiry_evpd_scsi_ports(struct ctl_scsiio *ctsio, int alloc_len) 9764{ 9765 struct ctl_softc *softc = control_softc; 9766 struct scsi_vpd_scsi_ports *sp; 9767 struct scsi_vpd_port_designation *pd; 9768 struct scsi_vpd_port_designation_cont *pdc; 9769 struct ctl_lun *lun; 9770 struct ctl_port *port; 9771 int data_len, num_target_ports, iid_len, id_len; 9772 9773 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9774 9775 num_target_ports = 0; 9776 iid_len = 0; 9777 id_len = 0; 9778 mtx_lock(&softc->ctl_lock); 9779 STAILQ_FOREACH(port, &softc->port_list, links) { 9780 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 9781 continue; 9782 if (lun != NULL && 9783 ctl_lun_map_to_port(port, lun->lun) >= CTL_MAX_LUNS) 9784 continue; 9785 num_target_ports++; 9786 if (port->init_devid) 9787 iid_len += port->init_devid->len; 9788 if (port->port_devid) 9789 id_len += port->port_devid->len; 9790 } 9791 mtx_unlock(&softc->ctl_lock); 9792 9793 data_len = sizeof(struct scsi_vpd_scsi_ports) + 9794 num_target_ports * (sizeof(struct scsi_vpd_port_designation) + 9795 sizeof(struct scsi_vpd_port_designation_cont)) + iid_len + id_len; 9796 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9797 sp = (struct scsi_vpd_scsi_ports *)ctsio->kern_data_ptr; 9798 ctsio->kern_sg_entries = 0; 9799 9800 if (data_len < alloc_len) { 9801 ctsio->residual = alloc_len - data_len; 9802 ctsio->kern_data_len = data_len; 9803 ctsio->kern_total_len = data_len; 9804 } else { 9805 ctsio->residual = 0; 9806 ctsio->kern_data_len = alloc_len; 9807 ctsio->kern_total_len = alloc_len; 9808 } 9809 ctsio->kern_data_resid = 0; 9810 ctsio->kern_rel_offset = 0; 9811 ctsio->kern_sg_entries = 0; 9812 9813 /* 9814 * The control device is always connected. The disk device, on the 9815 * other hand, may not be online all the time. Need to change this 9816 * to figure out whether the disk device is actually online or not. 9817 */ 9818 if (lun != NULL) 9819 sp->device = (SID_QUAL_LU_CONNECTED << 5) | 9820 lun->be_lun->lun_type; 9821 else 9822 sp->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9823 9824 sp->page_code = SVPD_SCSI_PORTS; 9825 scsi_ulto2b(data_len - sizeof(struct scsi_vpd_scsi_ports), 9826 sp->page_length); 9827 pd = &sp->design[0]; 9828 9829 mtx_lock(&softc->ctl_lock); 9830 STAILQ_FOREACH(port, &softc->port_list, links) { 9831 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 9832 continue; 9833 if (lun != NULL && 9834 ctl_lun_map_to_port(port, lun->lun) >= CTL_MAX_LUNS) 9835 continue; 9836 scsi_ulto2b(port->targ_port, pd->relative_port_id); 9837 if (port->init_devid) { 9838 iid_len = port->init_devid->len; 9839 memcpy(pd->initiator_transportid, 9840 port->init_devid->data, port->init_devid->len); 9841 } else 9842 iid_len = 0; 9843 scsi_ulto2b(iid_len, pd->initiator_transportid_length); 9844 pdc = (struct scsi_vpd_port_designation_cont *) 9845 (&pd->initiator_transportid[iid_len]); 9846 if (port->port_devid) { 9847 id_len = port->port_devid->len; 9848 memcpy(pdc->target_port_descriptors, 9849 port->port_devid->data, port->port_devid->len); 9850 } else 9851 id_len = 0; 9852 scsi_ulto2b(id_len, pdc->target_port_descriptors_length); 9853 pd = (struct scsi_vpd_port_designation *) 9854 ((uint8_t *)pdc->target_port_descriptors + id_len); 9855 } 9856 mtx_unlock(&softc->ctl_lock); 9857 9858 ctl_set_success(ctsio); 9859 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9860 ctsio->be_move_done = ctl_config_move_done; 9861 ctl_datamove((union ctl_io *)ctsio); 9862 return (CTL_RETVAL_COMPLETE); 9863} 9864 9865static int 9866ctl_inquiry_evpd_block_limits(struct ctl_scsiio *ctsio, int alloc_len) 9867{ 9868 struct scsi_vpd_block_limits *bl_ptr; 9869 struct ctl_lun *lun; 9870 uint64_t ival; 9871 9872 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9873 9874 ctsio->kern_data_ptr = malloc(sizeof(*bl_ptr), M_CTL, M_WAITOK | M_ZERO); 9875 bl_ptr = (struct scsi_vpd_block_limits *)ctsio->kern_data_ptr; 9876 ctsio->kern_sg_entries = 0; 9877 9878 if (sizeof(*bl_ptr) < alloc_len) { 9879 ctsio->residual = alloc_len - sizeof(*bl_ptr); 9880 ctsio->kern_data_len = sizeof(*bl_ptr); 9881 ctsio->kern_total_len = sizeof(*bl_ptr); 9882 } else { 9883 ctsio->residual = 0; 9884 ctsio->kern_data_len = alloc_len; 9885 ctsio->kern_total_len = alloc_len; 9886 } 9887 ctsio->kern_data_resid = 0; 9888 ctsio->kern_rel_offset = 0; 9889 ctsio->kern_sg_entries = 0; 9890 9891 /* 9892 * The control device is always connected. The disk device, on the 9893 * other hand, may not be online all the time. Need to change this 9894 * to figure out whether the disk device is actually online or not. 9895 */ 9896 if (lun != NULL) 9897 bl_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9898 lun->be_lun->lun_type; 9899 else 9900 bl_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9901 9902 bl_ptr->page_code = SVPD_BLOCK_LIMITS; 9903 scsi_ulto2b(sizeof(*bl_ptr) - 4, bl_ptr->page_length); 9904 bl_ptr->max_cmp_write_len = 0xff; 9905 scsi_ulto4b(0xffffffff, bl_ptr->max_txfer_len); 9906 if (lun != NULL) { 9907 scsi_ulto4b(lun->be_lun->opttxferlen, bl_ptr->opt_txfer_len); 9908 if (lun->be_lun->flags & CTL_LUN_FLAG_UNMAP) { 9909 ival = 0xffffffff; 9910 ctl_get_opt_number(&lun->be_lun->options, 9911 "unmap_max_lba", &ival); 9912 scsi_ulto4b(ival, bl_ptr->max_unmap_lba_cnt); 9913 ival = 0xffffffff; 9914 ctl_get_opt_number(&lun->be_lun->options, 9915 "unmap_max_descr", &ival); 9916 scsi_ulto4b(ival, bl_ptr->max_unmap_blk_cnt); 9917 if (lun->be_lun->ublockexp != 0) { 9918 scsi_ulto4b((1 << lun->be_lun->ublockexp), 9919 bl_ptr->opt_unmap_grain); 9920 scsi_ulto4b(0x80000000 | lun->be_lun->ublockoff, 9921 bl_ptr->unmap_grain_align); 9922 } 9923 } 9924 scsi_ulto4b(lun->be_lun->atomicblock, 9925 bl_ptr->max_atomic_transfer_length); 9926 scsi_ulto4b(0, bl_ptr->atomic_alignment); 9927 scsi_ulto4b(0, bl_ptr->atomic_transfer_length_granularity); 9928 scsi_ulto4b(0, bl_ptr->max_atomic_transfer_length_with_atomic_boundary); 9929 scsi_ulto4b(0, bl_ptr->max_atomic_boundary_size); 9930 ival = UINT64_MAX; 9931 ctl_get_opt_number(&lun->be_lun->options, "write_same_max_lba", &ival); 9932 scsi_u64to8b(ival, bl_ptr->max_write_same_length); 9933 } 9934 9935 ctl_set_success(ctsio); 9936 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9937 ctsio->be_move_done = ctl_config_move_done; 9938 ctl_datamove((union ctl_io *)ctsio); 9939 return (CTL_RETVAL_COMPLETE); 9940} 9941 9942static int 9943ctl_inquiry_evpd_bdc(struct ctl_scsiio *ctsio, int alloc_len) 9944{ 9945 struct scsi_vpd_block_device_characteristics *bdc_ptr; 9946 struct ctl_lun *lun; 9947 const char *value; 9948 u_int i; 9949 9950 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9951 9952 ctsio->kern_data_ptr = malloc(sizeof(*bdc_ptr), M_CTL, M_WAITOK | M_ZERO); 9953 bdc_ptr = (struct scsi_vpd_block_device_characteristics *)ctsio->kern_data_ptr; 9954 ctsio->kern_sg_entries = 0; 9955 9956 if (sizeof(*bdc_ptr) < alloc_len) { 9957 ctsio->residual = alloc_len - sizeof(*bdc_ptr); 9958 ctsio->kern_data_len = sizeof(*bdc_ptr); 9959 ctsio->kern_total_len = sizeof(*bdc_ptr); 9960 } else { 9961 ctsio->residual = 0; 9962 ctsio->kern_data_len = alloc_len; 9963 ctsio->kern_total_len = alloc_len; 9964 } 9965 ctsio->kern_data_resid = 0; 9966 ctsio->kern_rel_offset = 0; 9967 ctsio->kern_sg_entries = 0; 9968 9969 /* 9970 * The control device is always connected. The disk device, on the 9971 * other hand, may not be online all the time. Need to change this 9972 * to figure out whether the disk device is actually online or not. 9973 */ 9974 if (lun != NULL) 9975 bdc_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9976 lun->be_lun->lun_type; 9977 else 9978 bdc_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9979 bdc_ptr->page_code = SVPD_BDC; 9980 scsi_ulto2b(sizeof(*bdc_ptr) - 4, bdc_ptr->page_length); 9981 if (lun != NULL && 9982 (value = ctl_get_opt(&lun->be_lun->options, "rpm")) != NULL) 9983 i = strtol(value, NULL, 0); 9984 else 9985 i = CTL_DEFAULT_ROTATION_RATE; 9986 scsi_ulto2b(i, bdc_ptr->medium_rotation_rate); 9987 if (lun != NULL && 9988 (value = ctl_get_opt(&lun->be_lun->options, "formfactor")) != NULL) 9989 i = strtol(value, NULL, 0); 9990 else 9991 i = 0; 9992 bdc_ptr->wab_wac_ff = (i & 0x0f); 9993 bdc_ptr->flags = SVPD_FUAB | SVPD_VBULS; 9994 9995 ctl_set_success(ctsio); 9996 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9997 ctsio->be_move_done = ctl_config_move_done; 9998 ctl_datamove((union ctl_io *)ctsio); 9999 return (CTL_RETVAL_COMPLETE); 10000} 10001 10002static int 10003ctl_inquiry_evpd_lbp(struct ctl_scsiio *ctsio, int alloc_len) 10004{ 10005 struct scsi_vpd_logical_block_prov *lbp_ptr; 10006 struct ctl_lun *lun; 10007 const char *value; 10008 10009 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10010 10011 ctsio->kern_data_ptr = malloc(sizeof(*lbp_ptr), M_CTL, M_WAITOK | M_ZERO); 10012 lbp_ptr = (struct scsi_vpd_logical_block_prov *)ctsio->kern_data_ptr; 10013 ctsio->kern_sg_entries = 0; 10014 10015 if (sizeof(*lbp_ptr) < alloc_len) { 10016 ctsio->residual = alloc_len - sizeof(*lbp_ptr); 10017 ctsio->kern_data_len = sizeof(*lbp_ptr); 10018 ctsio->kern_total_len = sizeof(*lbp_ptr); 10019 } else { 10020 ctsio->residual = 0; 10021 ctsio->kern_data_len = alloc_len; 10022 ctsio->kern_total_len = alloc_len; 10023 } 10024 ctsio->kern_data_resid = 0; 10025 ctsio->kern_rel_offset = 0; 10026 ctsio->kern_sg_entries = 0; 10027 10028 /* 10029 * The control device is always connected. The disk device, on the 10030 * other hand, may not be online all the time. Need to change this 10031 * to figure out whether the disk device is actually online or not. 10032 */ 10033 if (lun != NULL) 10034 lbp_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10035 lun->be_lun->lun_type; 10036 else 10037 lbp_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10038 10039 lbp_ptr->page_code = SVPD_LBP; 10040 scsi_ulto2b(sizeof(*lbp_ptr) - 4, lbp_ptr->page_length); 10041 lbp_ptr->threshold_exponent = CTL_LBP_EXPONENT; 10042 if (lun != NULL && lun->be_lun->flags & CTL_LUN_FLAG_UNMAP) { 10043 lbp_ptr->flags = SVPD_LBP_UNMAP | SVPD_LBP_WS16 | 10044 SVPD_LBP_WS10 | SVPD_LBP_RZ | SVPD_LBP_ANC_SUP; 10045 value = ctl_get_opt(&lun->be_lun->options, "provisioning_type"); 10046 if (value != NULL) { 10047 if (strcmp(value, "resource") == 0) 10048 lbp_ptr->prov_type = SVPD_LBP_RESOURCE; 10049 else if (strcmp(value, "thin") == 0) 10050 lbp_ptr->prov_type = SVPD_LBP_THIN; 10051 } else 10052 lbp_ptr->prov_type = SVPD_LBP_THIN; 10053 } 10054 10055 ctl_set_success(ctsio); 10056 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10057 ctsio->be_move_done = ctl_config_move_done; 10058 ctl_datamove((union ctl_io *)ctsio); 10059 return (CTL_RETVAL_COMPLETE); 10060} 10061 10062/* 10063 * INQUIRY with the EVPD bit set. 10064 */ 10065static int 10066ctl_inquiry_evpd(struct ctl_scsiio *ctsio) 10067{ 10068 struct ctl_lun *lun; 10069 struct scsi_inquiry *cdb; 10070 int alloc_len, retval; 10071 10072 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10073 cdb = (struct scsi_inquiry *)ctsio->cdb; 10074 alloc_len = scsi_2btoul(cdb->length); 10075 10076 switch (cdb->page_code) { 10077 case SVPD_SUPPORTED_PAGES: 10078 retval = ctl_inquiry_evpd_supported(ctsio, alloc_len); 10079 break; 10080 case SVPD_UNIT_SERIAL_NUMBER: 10081 retval = ctl_inquiry_evpd_serial(ctsio, alloc_len); 10082 break; 10083 case SVPD_DEVICE_ID: 10084 retval = ctl_inquiry_evpd_devid(ctsio, alloc_len); 10085 break; 10086 case SVPD_EXTENDED_INQUIRY_DATA: 10087 retval = ctl_inquiry_evpd_eid(ctsio, alloc_len); 10088 break; 10089 case SVPD_MODE_PAGE_POLICY: 10090 retval = ctl_inquiry_evpd_mpp(ctsio, alloc_len); 10091 break; 10092 case SVPD_SCSI_PORTS: 10093 retval = ctl_inquiry_evpd_scsi_ports(ctsio, alloc_len); 10094 break; 10095 case SVPD_SCSI_TPC: 10096 retval = ctl_inquiry_evpd_tpc(ctsio, alloc_len); 10097 break; 10098 case SVPD_BLOCK_LIMITS: 10099 if (lun == NULL || lun->be_lun->lun_type != T_DIRECT) 10100 goto err; 10101 retval = ctl_inquiry_evpd_block_limits(ctsio, alloc_len); 10102 break; 10103 case SVPD_BDC: 10104 if (lun == NULL || lun->be_lun->lun_type != T_DIRECT) 10105 goto err; 10106 retval = ctl_inquiry_evpd_bdc(ctsio, alloc_len); 10107 break; 10108 case SVPD_LBP: 10109 if (lun == NULL || lun->be_lun->lun_type != T_DIRECT) 10110 goto err; 10111 retval = ctl_inquiry_evpd_lbp(ctsio, alloc_len); 10112 break; 10113 default: 10114err: 10115 ctl_set_invalid_field(ctsio, 10116 /*sks_valid*/ 1, 10117 /*command*/ 1, 10118 /*field*/ 2, 10119 /*bit_valid*/ 0, 10120 /*bit*/ 0); 10121 ctl_done((union ctl_io *)ctsio); 10122 retval = CTL_RETVAL_COMPLETE; 10123 break; 10124 } 10125 10126 return (retval); 10127} 10128 10129/* 10130 * Standard INQUIRY data. 10131 */ 10132static int 10133ctl_inquiry_std(struct ctl_scsiio *ctsio) 10134{ 10135 struct scsi_inquiry_data *inq_ptr; 10136 struct scsi_inquiry *cdb; 10137 struct ctl_softc *softc = control_softc; 10138 struct ctl_port *port; 10139 struct ctl_lun *lun; 10140 char *val; 10141 uint32_t alloc_len, data_len; 10142 ctl_port_type port_type; 10143 10144 port = ctl_io_port(&ctsio->io_hdr); 10145 port_type = port->port_type; 10146 if (port_type == CTL_PORT_IOCTL || port_type == CTL_PORT_INTERNAL) 10147 port_type = CTL_PORT_SCSI; 10148 10149 lun = ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10150 cdb = (struct scsi_inquiry *)ctsio->cdb; 10151 alloc_len = scsi_2btoul(cdb->length); 10152 10153 /* 10154 * We malloc the full inquiry data size here and fill it 10155 * in. If the user only asks for less, we'll give him 10156 * that much. 10157 */ 10158 data_len = offsetof(struct scsi_inquiry_data, vendor_specific1); 10159 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 10160 inq_ptr = (struct scsi_inquiry_data *)ctsio->kern_data_ptr; 10161 ctsio->kern_sg_entries = 0; 10162 ctsio->kern_data_resid = 0; 10163 ctsio->kern_rel_offset = 0; 10164 10165 if (data_len < alloc_len) { 10166 ctsio->residual = alloc_len - data_len; 10167 ctsio->kern_data_len = data_len; 10168 ctsio->kern_total_len = data_len; 10169 } else { 10170 ctsio->residual = 0; 10171 ctsio->kern_data_len = alloc_len; 10172 ctsio->kern_total_len = alloc_len; 10173 } 10174 10175 if (lun != NULL) { 10176 if ((lun->flags & CTL_LUN_PRIMARY_SC) || 10177 softc->ha_link >= CTL_HA_LINK_UNKNOWN) { 10178 inq_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10179 lun->be_lun->lun_type; 10180 } else { 10181 inq_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | 10182 lun->be_lun->lun_type; 10183 } 10184 if (lun->flags & CTL_LUN_REMOVABLE) 10185 inq_ptr->dev_qual2 |= SID_RMB; 10186 } else 10187 inq_ptr->device = (SID_QUAL_BAD_LU << 5) | T_NODEVICE; 10188 10189 /* RMB in byte 2 is 0 */ 10190 inq_ptr->version = SCSI_REV_SPC4; 10191 10192 /* 10193 * According to SAM-3, even if a device only supports a single 10194 * level of LUN addressing, it should still set the HISUP bit: 10195 * 10196 * 4.9.1 Logical unit numbers overview 10197 * 10198 * All logical unit number formats described in this standard are 10199 * hierarchical in structure even when only a single level in that 10200 * hierarchy is used. The HISUP bit shall be set to one in the 10201 * standard INQUIRY data (see SPC-2) when any logical unit number 10202 * format described in this standard is used. Non-hierarchical 10203 * formats are outside the scope of this standard. 10204 * 10205 * Therefore we set the HiSup bit here. 10206 * 10207 * The response format is 2, per SPC-3. 10208 */ 10209 inq_ptr->response_format = SID_HiSup | 2; 10210 10211 inq_ptr->additional_length = data_len - 10212 (offsetof(struct scsi_inquiry_data, additional_length) + 1); 10213 CTL_DEBUG_PRINT(("additional_length = %d\n", 10214 inq_ptr->additional_length)); 10215 10216 inq_ptr->spc3_flags = SPC3_SID_3PC | SPC3_SID_TPGS_IMPLICIT; 10217 if (port_type == CTL_PORT_SCSI) 10218 inq_ptr->spc2_flags = SPC2_SID_ADDR16; 10219 inq_ptr->spc2_flags |= SPC2_SID_MultiP; 10220 inq_ptr->flags = SID_CmdQue; 10221 if (port_type == CTL_PORT_SCSI) 10222 inq_ptr->flags |= SID_WBus16 | SID_Sync; 10223 10224 /* 10225 * Per SPC-3, unused bytes in ASCII strings are filled with spaces. 10226 * We have 8 bytes for the vendor name, and 16 bytes for the device 10227 * name and 4 bytes for the revision. 10228 */ 10229 if (lun == NULL || (val = ctl_get_opt(&lun->be_lun->options, 10230 "vendor")) == NULL) { 10231 strncpy(inq_ptr->vendor, CTL_VENDOR, sizeof(inq_ptr->vendor)); 10232 } else { 10233 memset(inq_ptr->vendor, ' ', sizeof(inq_ptr->vendor)); 10234 strncpy(inq_ptr->vendor, val, 10235 min(sizeof(inq_ptr->vendor), strlen(val))); 10236 } 10237 if (lun == NULL) { 10238 strncpy(inq_ptr->product, CTL_DIRECT_PRODUCT, 10239 sizeof(inq_ptr->product)); 10240 } else if ((val = ctl_get_opt(&lun->be_lun->options, "product")) == NULL) { 10241 switch (lun->be_lun->lun_type) { 10242 case T_DIRECT: 10243 strncpy(inq_ptr->product, CTL_DIRECT_PRODUCT, 10244 sizeof(inq_ptr->product)); 10245 break; 10246 case T_PROCESSOR: 10247 strncpy(inq_ptr->product, CTL_PROCESSOR_PRODUCT, 10248 sizeof(inq_ptr->product)); 10249 break; 10250 case T_CDROM: 10251 strncpy(inq_ptr->product, CTL_CDROM_PRODUCT, 10252 sizeof(inq_ptr->product)); 10253 break; 10254 default: 10255 strncpy(inq_ptr->product, CTL_UNKNOWN_PRODUCT, 10256 sizeof(inq_ptr->product)); 10257 break; 10258 } 10259 } else { 10260 memset(inq_ptr->product, ' ', sizeof(inq_ptr->product)); 10261 strncpy(inq_ptr->product, val, 10262 min(sizeof(inq_ptr->product), strlen(val))); 10263 } 10264 10265 /* 10266 * XXX make this a macro somewhere so it automatically gets 10267 * incremented when we make changes. 10268 */ 10269 if (lun == NULL || (val = ctl_get_opt(&lun->be_lun->options, 10270 "revision")) == NULL) { 10271 strncpy(inq_ptr->revision, "0001", sizeof(inq_ptr->revision)); 10272 } else { 10273 memset(inq_ptr->revision, ' ', sizeof(inq_ptr->revision)); 10274 strncpy(inq_ptr->revision, val, 10275 min(sizeof(inq_ptr->revision), strlen(val))); 10276 } 10277 10278 /* 10279 * For parallel SCSI, we support double transition and single 10280 * transition clocking. We also support QAS (Quick Arbitration 10281 * and Selection) and Information Unit transfers on both the 10282 * control and array devices. 10283 */ 10284 if (port_type == CTL_PORT_SCSI) 10285 inq_ptr->spi3data = SID_SPI_CLOCK_DT_ST | SID_SPI_QAS | 10286 SID_SPI_IUS; 10287 10288 /* SAM-5 (no version claimed) */ 10289 scsi_ulto2b(0x00A0, inq_ptr->version1); 10290 /* SPC-4 (no version claimed) */ 10291 scsi_ulto2b(0x0460, inq_ptr->version2); 10292 if (port_type == CTL_PORT_FC) { 10293 /* FCP-2 ANSI INCITS.350:2003 */ 10294 scsi_ulto2b(0x0917, inq_ptr->version3); 10295 } else if (port_type == CTL_PORT_SCSI) { 10296 /* SPI-4 ANSI INCITS.362:200x */ 10297 scsi_ulto2b(0x0B56, inq_ptr->version3); 10298 } else if (port_type == CTL_PORT_ISCSI) { 10299 /* iSCSI (no version claimed) */ 10300 scsi_ulto2b(0x0960, inq_ptr->version3); 10301 } else if (port_type == CTL_PORT_SAS) { 10302 /* SAS (no version claimed) */ 10303 scsi_ulto2b(0x0BE0, inq_ptr->version3); 10304 } 10305 10306 if (lun == NULL) { 10307 /* SBC-4 (no version claimed) */ 10308 scsi_ulto2b(0x0600, inq_ptr->version4); 10309 } else { 10310 switch (lun->be_lun->lun_type) { 10311 case T_DIRECT: 10312 /* SBC-4 (no version claimed) */ 10313 scsi_ulto2b(0x0600, inq_ptr->version4); 10314 break; 10315 case T_PROCESSOR: 10316 break; 10317 case T_CDROM: 10318 /* MMC-6 (no version claimed) */ 10319 scsi_ulto2b(0x04E0, inq_ptr->version4); 10320 break; 10321 default: 10322 break; 10323 } 10324 } 10325 10326 ctl_set_success(ctsio); 10327 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10328 ctsio->be_move_done = ctl_config_move_done; 10329 ctl_datamove((union ctl_io *)ctsio); 10330 return (CTL_RETVAL_COMPLETE); 10331} 10332 10333int 10334ctl_inquiry(struct ctl_scsiio *ctsio) 10335{ 10336 struct scsi_inquiry *cdb; 10337 int retval; 10338 10339 CTL_DEBUG_PRINT(("ctl_inquiry\n")); 10340 10341 cdb = (struct scsi_inquiry *)ctsio->cdb; 10342 if (cdb->byte2 & SI_EVPD) 10343 retval = ctl_inquiry_evpd(ctsio); 10344 else if (cdb->page_code == 0) 10345 retval = ctl_inquiry_std(ctsio); 10346 else { 10347 ctl_set_invalid_field(ctsio, 10348 /*sks_valid*/ 1, 10349 /*command*/ 1, 10350 /*field*/ 2, 10351 /*bit_valid*/ 0, 10352 /*bit*/ 0); 10353 ctl_done((union ctl_io *)ctsio); 10354 return (CTL_RETVAL_COMPLETE); 10355 } 10356 10357 return (retval); 10358} 10359 10360int 10361ctl_get_config(struct ctl_scsiio *ctsio) 10362{ 10363 struct scsi_get_config_header *hdr; 10364 struct scsi_get_config_feature *feature; 10365 struct scsi_get_config *cdb; 10366 struct ctl_lun *lun; 10367 uint32_t alloc_len, data_len; 10368 int rt, starting; 10369 10370 lun = ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10371 cdb = (struct scsi_get_config *)ctsio->cdb; 10372 rt = (cdb->rt & SGC_RT_MASK); 10373 starting = scsi_2btoul(cdb->starting_feature); 10374 alloc_len = scsi_2btoul(cdb->length); 10375 10376 data_len = sizeof(struct scsi_get_config_header) + 10377 sizeof(struct scsi_get_config_feature) + 8 + 10378 sizeof(struct scsi_get_config_feature) + 8 + 10379 sizeof(struct scsi_get_config_feature) + 4 + 10380 sizeof(struct scsi_get_config_feature) + 4 + 10381 sizeof(struct scsi_get_config_feature) + 8 + 10382 sizeof(struct scsi_get_config_feature) + 10383 sizeof(struct scsi_get_config_feature) + 4 + 10384 sizeof(struct scsi_get_config_feature) + 4 + 10385 sizeof(struct scsi_get_config_feature) + 4 + 10386 sizeof(struct scsi_get_config_feature) + 4 + 10387 sizeof(struct scsi_get_config_feature) + 4 + 10388 sizeof(struct scsi_get_config_feature) + 4; 10389 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 10390 ctsio->kern_sg_entries = 0; 10391 ctsio->kern_data_resid = 0; 10392 ctsio->kern_rel_offset = 0; 10393 10394 hdr = (struct scsi_get_config_header *)ctsio->kern_data_ptr; 10395 if (lun->flags & CTL_LUN_NO_MEDIA) 10396 scsi_ulto2b(0x0000, hdr->current_profile); 10397 else 10398 scsi_ulto2b(0x0010, hdr->current_profile); 10399 feature = (struct scsi_get_config_feature *)(hdr + 1); 10400 10401 if (starting > 0x003b) 10402 goto done; 10403 if (starting > 0x003a) 10404 goto f3b; 10405 if (starting > 0x002b) 10406 goto f3a; 10407 if (starting > 0x002a) 10408 goto f2b; 10409 if (starting > 0x001f) 10410 goto f2a; 10411 if (starting > 0x001e) 10412 goto f1f; 10413 if (starting > 0x001d) 10414 goto f1e; 10415 if (starting > 0x0010) 10416 goto f1d; 10417 if (starting > 0x0003) 10418 goto f10; 10419 if (starting > 0x0002) 10420 goto f3; 10421 if (starting > 0x0001) 10422 goto f2; 10423 if (starting > 0x0000) 10424 goto f1; 10425 10426 /* Profile List */ 10427 scsi_ulto2b(0x0000, feature->feature_code); 10428 feature->flags = SGC_F_PERSISTENT | SGC_F_CURRENT; 10429 feature->add_length = 8; 10430 scsi_ulto2b(0x0008, &feature->feature_data[0]); /* CD-ROM */ 10431 feature->feature_data[2] = 0x00; 10432 scsi_ulto2b(0x0010, &feature->feature_data[4]); /* DVD-ROM */ 10433 feature->feature_data[6] = 0x01; 10434 feature = (struct scsi_get_config_feature *) 10435 &feature->feature_data[feature->add_length]; 10436 10437f1: /* Core */ 10438 scsi_ulto2b(0x0001, feature->feature_code); 10439 feature->flags = 0x08 | SGC_F_PERSISTENT | SGC_F_CURRENT; 10440 feature->add_length = 8; 10441 scsi_ulto4b(0x00000000, &feature->feature_data[0]); 10442 feature->feature_data[4] = 0x03; 10443 feature = (struct scsi_get_config_feature *) 10444 &feature->feature_data[feature->add_length]; 10445 10446f2: /* Morphing */ 10447 scsi_ulto2b(0x0002, feature->feature_code); 10448 feature->flags = 0x04 | SGC_F_PERSISTENT | SGC_F_CURRENT; 10449 feature->add_length = 4; 10450 feature->feature_data[0] = 0x02; 10451 feature = (struct scsi_get_config_feature *) 10452 &feature->feature_data[feature->add_length]; 10453 10454f3: /* Removable Medium */ 10455 scsi_ulto2b(0x0003, feature->feature_code); 10456 feature->flags = 0x04 | SGC_F_PERSISTENT | SGC_F_CURRENT; 10457 feature->add_length = 4; 10458 feature->feature_data[0] = 0x39; 10459 feature = (struct scsi_get_config_feature *) 10460 &feature->feature_data[feature->add_length]; 10461 10462 if (rt == SGC_RT_CURRENT && (lun->flags & CTL_LUN_NO_MEDIA)) 10463 goto done; 10464 10465f10: /* Random Read */ 10466 scsi_ulto2b(0x0010, feature->feature_code); 10467 feature->flags = 0x00; 10468 if ((lun->flags & CTL_LUN_NO_MEDIA) == 0) 10469 feature->flags |= SGC_F_CURRENT; 10470 feature->add_length = 8; 10471 scsi_ulto4b(lun->be_lun->blocksize, &feature->feature_data[0]); 10472 scsi_ulto2b(1, &feature->feature_data[4]); 10473 feature->feature_data[6] = 0x00; 10474 feature = (struct scsi_get_config_feature *) 10475 &feature->feature_data[feature->add_length]; 10476 10477f1d: /* Multi-Read */ 10478 scsi_ulto2b(0x001D, feature->feature_code); 10479 feature->flags = 0x00; 10480 if ((lun->flags & CTL_LUN_NO_MEDIA) == 0) 10481 feature->flags |= SGC_F_CURRENT; 10482 feature->add_length = 0; 10483 feature = (struct scsi_get_config_feature *) 10484 &feature->feature_data[feature->add_length]; 10485 10486f1e: /* CD Read */ 10487 scsi_ulto2b(0x001E, feature->feature_code); 10488 feature->flags = 0x00; 10489 if ((lun->flags & CTL_LUN_NO_MEDIA) == 0) 10490 feature->flags |= SGC_F_CURRENT; 10491 feature->add_length = 4; 10492 feature->feature_data[0] = 0x00; 10493 feature = (struct scsi_get_config_feature *) 10494 &feature->feature_data[feature->add_length]; 10495 10496f1f: /* DVD Read */ 10497 scsi_ulto2b(0x001F, feature->feature_code); 10498 feature->flags = 0x08; 10499 if ((lun->flags & CTL_LUN_NO_MEDIA) == 0) 10500 feature->flags |= SGC_F_CURRENT; 10501 feature->add_length = 4; 10502 feature->feature_data[0] = 0x01; 10503 feature->feature_data[2] = 0x03; 10504 feature = (struct scsi_get_config_feature *) 10505 &feature->feature_data[feature->add_length]; 10506 10507f2a: /* DVD+RW */ 10508 scsi_ulto2b(0x002A, feature->feature_code); 10509 feature->flags = 0x04; 10510 if ((lun->flags & CTL_LUN_NO_MEDIA) == 0) 10511 feature->flags |= SGC_F_CURRENT; 10512 feature->add_length = 4; 10513 feature->feature_data[0] = 0x00; 10514 feature->feature_data[1] = 0x00; 10515 feature = (struct scsi_get_config_feature *) 10516 &feature->feature_data[feature->add_length]; 10517 10518f2b: /* DVD+R */ 10519 scsi_ulto2b(0x002B, feature->feature_code); 10520 feature->flags = 0x00; 10521 if ((lun->flags & CTL_LUN_NO_MEDIA) == 0) 10522 feature->flags |= SGC_F_CURRENT; 10523 feature->add_length = 4; 10524 feature->feature_data[0] = 0x00; 10525 feature = (struct scsi_get_config_feature *) 10526 &feature->feature_data[feature->add_length]; 10527 10528f3a: /* DVD+RW Dual Layer */ 10529 scsi_ulto2b(0x003A, feature->feature_code); 10530 feature->flags = 0x00; 10531 if ((lun->flags & CTL_LUN_NO_MEDIA) == 0) 10532 feature->flags |= SGC_F_CURRENT; 10533 feature->add_length = 4; 10534 feature->feature_data[0] = 0x00; 10535 feature->feature_data[1] = 0x00; 10536 feature = (struct scsi_get_config_feature *) 10537 &feature->feature_data[feature->add_length]; 10538 10539f3b: /* DVD+R Dual Layer */ 10540 scsi_ulto2b(0x003B, feature->feature_code); 10541 feature->flags = 0x00; 10542 if ((lun->flags & CTL_LUN_NO_MEDIA) == 0) 10543 feature->flags |= SGC_F_CURRENT; 10544 feature->add_length = 4; 10545 feature->feature_data[0] = 0x00; 10546 feature = (struct scsi_get_config_feature *) 10547 &feature->feature_data[feature->add_length]; 10548 10549done: 10550 data_len = (uint8_t *)feature - (uint8_t *)hdr; 10551 if (rt == SGC_RT_SPECIFIC && data_len > 4) { 10552 feature = (struct scsi_get_config_feature *)(hdr + 1); 10553 if (scsi_2btoul(feature->feature_code) == starting) 10554 feature = (struct scsi_get_config_feature *) 10555 &feature->feature_data[feature->add_length]; 10556 data_len = (uint8_t *)feature - (uint8_t *)hdr; 10557 } 10558 scsi_ulto4b(data_len - 4, hdr->data_length); 10559 if (data_len < alloc_len) { 10560 ctsio->residual = alloc_len - data_len; 10561 ctsio->kern_data_len = data_len; 10562 ctsio->kern_total_len = data_len; 10563 } else { 10564 ctsio->residual = 0; 10565 ctsio->kern_data_len = alloc_len; 10566 ctsio->kern_total_len = alloc_len; 10567 } 10568 10569 ctl_set_success(ctsio); 10570 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10571 ctsio->be_move_done = ctl_config_move_done; 10572 ctl_datamove((union ctl_io *)ctsio); 10573 return (CTL_RETVAL_COMPLETE); 10574} 10575 10576int 10577ctl_get_event_status(struct ctl_scsiio *ctsio) 10578{ 10579 struct scsi_get_event_status_header *hdr; 10580 struct scsi_get_event_status *cdb; 10581 struct ctl_lun *lun; 10582 uint32_t alloc_len, data_len; 10583 int notif_class; 10584 10585 lun = ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10586 cdb = (struct scsi_get_event_status *)ctsio->cdb; 10587 if ((cdb->byte2 & SGESN_POLLED) == 0) { 10588 ctl_set_invalid_field(ctsio, /*sks_valid*/ 1, /*command*/ 1, 10589 /*field*/ 1, /*bit_valid*/ 1, /*bit*/ 0); 10590 ctl_done((union ctl_io *)ctsio); 10591 return (CTL_RETVAL_COMPLETE); 10592 } 10593 notif_class = cdb->notif_class; 10594 alloc_len = scsi_2btoul(cdb->length); 10595 10596 data_len = sizeof(struct scsi_get_event_status_header); 10597 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 10598 ctsio->kern_sg_entries = 0; 10599 ctsio->kern_data_resid = 0; 10600 ctsio->kern_rel_offset = 0; 10601 10602 if (data_len < alloc_len) { 10603 ctsio->residual = alloc_len - data_len; 10604 ctsio->kern_data_len = data_len; 10605 ctsio->kern_total_len = data_len; 10606 } else { 10607 ctsio->residual = 0; 10608 ctsio->kern_data_len = alloc_len; 10609 ctsio->kern_total_len = alloc_len; 10610 } 10611 10612 hdr = (struct scsi_get_event_status_header *)ctsio->kern_data_ptr; 10613 scsi_ulto2b(0, hdr->descr_length); 10614 hdr->nea_class = SGESN_NEA; 10615 hdr->supported_class = 0; 10616 10617 ctl_set_success(ctsio); 10618 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10619 ctsio->be_move_done = ctl_config_move_done; 10620 ctl_datamove((union ctl_io *)ctsio); 10621 return (CTL_RETVAL_COMPLETE); 10622} 10623 10624int 10625ctl_mechanism_status(struct ctl_scsiio *ctsio) 10626{ 10627 struct scsi_mechanism_status_header *hdr; 10628 struct scsi_mechanism_status *cdb; 10629 struct ctl_lun *lun; 10630 uint32_t alloc_len, data_len; 10631 10632 lun = ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10633 cdb = (struct scsi_mechanism_status *)ctsio->cdb; 10634 alloc_len = scsi_2btoul(cdb->length); 10635 10636 data_len = sizeof(struct scsi_mechanism_status_header); 10637 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 10638 ctsio->kern_sg_entries = 0; 10639 ctsio->kern_data_resid = 0; 10640 ctsio->kern_rel_offset = 0; 10641 10642 if (data_len < alloc_len) { 10643 ctsio->residual = alloc_len - data_len; 10644 ctsio->kern_data_len = data_len; 10645 ctsio->kern_total_len = data_len; 10646 } else { 10647 ctsio->residual = 0; 10648 ctsio->kern_data_len = alloc_len; 10649 ctsio->kern_total_len = alloc_len; 10650 } 10651 10652 hdr = (struct scsi_mechanism_status_header *)ctsio->kern_data_ptr; 10653 hdr->state1 = 0x00; 10654 hdr->state2 = 0xe0; 10655 scsi_ulto3b(0, hdr->lba); 10656 hdr->slots_num = 0; 10657 scsi_ulto2b(0, hdr->slots_length); 10658 10659 ctl_set_success(ctsio); 10660 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10661 ctsio->be_move_done = ctl_config_move_done; 10662 ctl_datamove((union ctl_io *)ctsio); 10663 return (CTL_RETVAL_COMPLETE); 10664} 10665 10666static void 10667ctl_ultomsf(uint32_t lba, uint8_t *buf) 10668{ 10669 10670 lba += 150; 10671 buf[0] = 0; 10672 buf[1] = bin2bcd((lba / 75) / 60); 10673 buf[2] = bin2bcd((lba / 75) % 60); 10674 buf[3] = bin2bcd(lba % 75); 10675} 10676 10677int 10678ctl_read_toc(struct ctl_scsiio *ctsio) 10679{ 10680 struct scsi_read_toc_hdr *hdr; 10681 struct scsi_read_toc_type01_descr *descr; 10682 struct scsi_read_toc *cdb; 10683 struct ctl_lun *lun; 10684 uint32_t alloc_len, data_len; 10685 int format, msf; 10686 10687 lun = ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10688 cdb = (struct scsi_read_toc *)ctsio->cdb; 10689 msf = (cdb->byte2 & CD_MSF) != 0; 10690 format = cdb->format; 10691 alloc_len = scsi_2btoul(cdb->data_len); 10692 10693 data_len = sizeof(struct scsi_read_toc_hdr); 10694 if (format == 0) 10695 data_len += 2 * sizeof(struct scsi_read_toc_type01_descr); 10696 else 10697 data_len += sizeof(struct scsi_read_toc_type01_descr); 10698 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 10699 ctsio->kern_sg_entries = 0; 10700 ctsio->kern_data_resid = 0; 10701 ctsio->kern_rel_offset = 0; 10702 10703 if (data_len < alloc_len) { 10704 ctsio->residual = alloc_len - data_len; 10705 ctsio->kern_data_len = data_len; 10706 ctsio->kern_total_len = data_len; 10707 } else { 10708 ctsio->residual = 0; 10709 ctsio->kern_data_len = alloc_len; 10710 ctsio->kern_total_len = alloc_len; 10711 } 10712 10713 hdr = (struct scsi_read_toc_hdr *)ctsio->kern_data_ptr; 10714 if (format == 0) { 10715 scsi_ulto2b(0x12, hdr->data_length); 10716 hdr->first = 1; 10717 hdr->last = 1; 10718 descr = (struct scsi_read_toc_type01_descr *)(hdr + 1); 10719 descr->addr_ctl = 0x14; 10720 descr->track_number = 1; 10721 if (msf) 10722 ctl_ultomsf(0, descr->track_start); 10723 else 10724 scsi_ulto4b(0, descr->track_start); 10725 descr++; 10726 descr->addr_ctl = 0x14; 10727 descr->track_number = 0xaa; 10728 if (msf) 10729 ctl_ultomsf(lun->be_lun->maxlba+1, descr->track_start); 10730 else 10731 scsi_ulto4b(lun->be_lun->maxlba+1, descr->track_start); 10732 } else { 10733 scsi_ulto2b(0x0a, hdr->data_length); 10734 hdr->first = 1; 10735 hdr->last = 1; 10736 descr = (struct scsi_read_toc_type01_descr *)(hdr + 1); 10737 descr->addr_ctl = 0x14; 10738 descr->track_number = 1; 10739 if (msf) 10740 ctl_ultomsf(0, descr->track_start); 10741 else 10742 scsi_ulto4b(0, descr->track_start); 10743 } 10744 10745 ctl_set_success(ctsio); 10746 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10747 ctsio->be_move_done = ctl_config_move_done; 10748 ctl_datamove((union ctl_io *)ctsio); 10749 return (CTL_RETVAL_COMPLETE); 10750} 10751 10752/* 10753 * For known CDB types, parse the LBA and length. 10754 */ 10755static int 10756ctl_get_lba_len(union ctl_io *io, uint64_t *lba, uint64_t *len) 10757{ 10758 if (io->io_hdr.io_type != CTL_IO_SCSI) 10759 return (1); 10760 10761 switch (io->scsiio.cdb[0]) { 10762 case COMPARE_AND_WRITE: { 10763 struct scsi_compare_and_write *cdb; 10764 10765 cdb = (struct scsi_compare_and_write *)io->scsiio.cdb; 10766 10767 *lba = scsi_8btou64(cdb->addr); 10768 *len = cdb->length; 10769 break; 10770 } 10771 case READ_6: 10772 case WRITE_6: { 10773 struct scsi_rw_6 *cdb; 10774 10775 cdb = (struct scsi_rw_6 *)io->scsiio.cdb; 10776 10777 *lba = scsi_3btoul(cdb->addr); 10778 /* only 5 bits are valid in the most significant address byte */ 10779 *lba &= 0x1fffff; 10780 *len = cdb->length; 10781 break; 10782 } 10783 case READ_10: 10784 case WRITE_10: { 10785 struct scsi_rw_10 *cdb; 10786 10787 cdb = (struct scsi_rw_10 *)io->scsiio.cdb; 10788 10789 *lba = scsi_4btoul(cdb->addr); 10790 *len = scsi_2btoul(cdb->length); 10791 break; 10792 } 10793 case WRITE_VERIFY_10: { 10794 struct scsi_write_verify_10 *cdb; 10795 10796 cdb = (struct scsi_write_verify_10 *)io->scsiio.cdb; 10797 10798 *lba = scsi_4btoul(cdb->addr); 10799 *len = scsi_2btoul(cdb->length); 10800 break; 10801 } 10802 case READ_12: 10803 case WRITE_12: { 10804 struct scsi_rw_12 *cdb; 10805 10806 cdb = (struct scsi_rw_12 *)io->scsiio.cdb; 10807 10808 *lba = scsi_4btoul(cdb->addr); 10809 *len = scsi_4btoul(cdb->length); 10810 break; 10811 } 10812 case WRITE_VERIFY_12: { 10813 struct scsi_write_verify_12 *cdb; 10814 10815 cdb = (struct scsi_write_verify_12 *)io->scsiio.cdb; 10816 10817 *lba = scsi_4btoul(cdb->addr); 10818 *len = scsi_4btoul(cdb->length); 10819 break; 10820 } 10821 case READ_16: 10822 case WRITE_16: { 10823 struct scsi_rw_16 *cdb; 10824 10825 cdb = (struct scsi_rw_16 *)io->scsiio.cdb; 10826 10827 *lba = scsi_8btou64(cdb->addr); 10828 *len = scsi_4btoul(cdb->length); 10829 break; 10830 } 10831 case WRITE_ATOMIC_16: { 10832 struct scsi_write_atomic_16 *cdb; 10833 10834 cdb = (struct scsi_write_atomic_16 *)io->scsiio.cdb; 10835 10836 *lba = scsi_8btou64(cdb->addr); 10837 *len = scsi_2btoul(cdb->length); 10838 break; 10839 } 10840 case WRITE_VERIFY_16: { 10841 struct scsi_write_verify_16 *cdb; 10842 10843 cdb = (struct scsi_write_verify_16 *)io->scsiio.cdb; 10844 10845 *lba = scsi_8btou64(cdb->addr); 10846 *len = scsi_4btoul(cdb->length); 10847 break; 10848 } 10849 case WRITE_SAME_10: { 10850 struct scsi_write_same_10 *cdb; 10851 10852 cdb = (struct scsi_write_same_10 *)io->scsiio.cdb; 10853 10854 *lba = scsi_4btoul(cdb->addr); 10855 *len = scsi_2btoul(cdb->length); 10856 break; 10857 } 10858 case WRITE_SAME_16: { 10859 struct scsi_write_same_16 *cdb; 10860 10861 cdb = (struct scsi_write_same_16 *)io->scsiio.cdb; 10862 10863 *lba = scsi_8btou64(cdb->addr); 10864 *len = scsi_4btoul(cdb->length); 10865 break; 10866 } 10867 case VERIFY_10: { 10868 struct scsi_verify_10 *cdb; 10869 10870 cdb = (struct scsi_verify_10 *)io->scsiio.cdb; 10871 10872 *lba = scsi_4btoul(cdb->addr); 10873 *len = scsi_2btoul(cdb->length); 10874 break; 10875 } 10876 case VERIFY_12: { 10877 struct scsi_verify_12 *cdb; 10878 10879 cdb = (struct scsi_verify_12 *)io->scsiio.cdb; 10880 10881 *lba = scsi_4btoul(cdb->addr); 10882 *len = scsi_4btoul(cdb->length); 10883 break; 10884 } 10885 case VERIFY_16: { 10886 struct scsi_verify_16 *cdb; 10887 10888 cdb = (struct scsi_verify_16 *)io->scsiio.cdb; 10889 10890 *lba = scsi_8btou64(cdb->addr); 10891 *len = scsi_4btoul(cdb->length); 10892 break; 10893 } 10894 case UNMAP: { 10895 *lba = 0; 10896 *len = UINT64_MAX; 10897 break; 10898 } 10899 case SERVICE_ACTION_IN: { /* GET LBA STATUS */ 10900 struct scsi_get_lba_status *cdb; 10901 10902 cdb = (struct scsi_get_lba_status *)io->scsiio.cdb; 10903 *lba = scsi_8btou64(cdb->addr); 10904 *len = UINT32_MAX; 10905 break; 10906 } 10907 default: 10908 return (1); 10909 break; /* NOTREACHED */ 10910 } 10911 10912 return (0); 10913} 10914 10915static ctl_action 10916ctl_extent_check_lba(uint64_t lba1, uint64_t len1, uint64_t lba2, uint64_t len2, 10917 bool seq) 10918{ 10919 uint64_t endlba1, endlba2; 10920 10921 endlba1 = lba1 + len1 - (seq ? 0 : 1); 10922 endlba2 = lba2 + len2 - 1; 10923 10924 if ((endlba1 < lba2) || (endlba2 < lba1)) 10925 return (CTL_ACTION_PASS); 10926 else 10927 return (CTL_ACTION_BLOCK); 10928} 10929 10930static int 10931ctl_extent_check_unmap(union ctl_io *io, uint64_t lba2, uint64_t len2) 10932{ 10933 struct ctl_ptr_len_flags *ptrlen; 10934 struct scsi_unmap_desc *buf, *end, *range; 10935 uint64_t lba; 10936 uint32_t len; 10937 10938 /* If not UNMAP -- go other way. */ 10939 if (io->io_hdr.io_type != CTL_IO_SCSI || 10940 io->scsiio.cdb[0] != UNMAP) 10941 return (CTL_ACTION_ERROR); 10942 10943 /* If UNMAP without data -- block and wait for data. */ 10944 ptrlen = (struct ctl_ptr_len_flags *) 10945 &io->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 10946 if ((io->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0 || 10947 ptrlen->ptr == NULL) 10948 return (CTL_ACTION_BLOCK); 10949 10950 /* UNMAP with data -- check for collision. */ 10951 buf = (struct scsi_unmap_desc *)ptrlen->ptr; 10952 end = buf + ptrlen->len / sizeof(*buf); 10953 for (range = buf; range < end; range++) { 10954 lba = scsi_8btou64(range->lba); 10955 len = scsi_4btoul(range->length); 10956 if ((lba < lba2 + len2) && (lba + len > lba2)) 10957 return (CTL_ACTION_BLOCK); 10958 } 10959 return (CTL_ACTION_PASS); 10960} 10961 10962static ctl_action 10963ctl_extent_check(union ctl_io *io1, union ctl_io *io2, bool seq) 10964{ 10965 uint64_t lba1, lba2; 10966 uint64_t len1, len2; 10967 int retval; 10968 10969 if (ctl_get_lba_len(io2, &lba2, &len2) != 0) 10970 return (CTL_ACTION_ERROR); 10971 10972 retval = ctl_extent_check_unmap(io1, lba2, len2); 10973 if (retval != CTL_ACTION_ERROR) 10974 return (retval); 10975 10976 if (ctl_get_lba_len(io1, &lba1, &len1) != 0) 10977 return (CTL_ACTION_ERROR); 10978 10979 if (io1->io_hdr.flags & CTL_FLAG_SERSEQ_DONE) 10980 seq = FALSE; 10981 return (ctl_extent_check_lba(lba1, len1, lba2, len2, seq)); 10982} 10983 10984static ctl_action 10985ctl_extent_check_seq(union ctl_io *io1, union ctl_io *io2) 10986{ 10987 uint64_t lba1, lba2; 10988 uint64_t len1, len2; 10989 10990 if (io1->io_hdr.flags & CTL_FLAG_SERSEQ_DONE) 10991 return (CTL_ACTION_PASS); 10992 if (ctl_get_lba_len(io1, &lba1, &len1) != 0) 10993 return (CTL_ACTION_ERROR); 10994 if (ctl_get_lba_len(io2, &lba2, &len2) != 0) 10995 return (CTL_ACTION_ERROR); 10996 10997 if (lba1 + len1 == lba2) 10998 return (CTL_ACTION_BLOCK); 10999 return (CTL_ACTION_PASS); 11000} 11001 11002static ctl_action 11003ctl_check_for_blockage(struct ctl_lun *lun, union ctl_io *pending_io, 11004 union ctl_io *ooa_io) 11005{ 11006 const struct ctl_cmd_entry *pending_entry, *ooa_entry; 11007 const ctl_serialize_action *serialize_row; 11008 11009 /* 11010 * The initiator attempted multiple untagged commands at the same 11011 * time. Can't do that. 11012 */ 11013 if ((pending_io->scsiio.tag_type == CTL_TAG_UNTAGGED) 11014 && (ooa_io->scsiio.tag_type == CTL_TAG_UNTAGGED) 11015 && ((pending_io->io_hdr.nexus.targ_port == 11016 ooa_io->io_hdr.nexus.targ_port) 11017 && (pending_io->io_hdr.nexus.initid == 11018 ooa_io->io_hdr.nexus.initid)) 11019 && ((ooa_io->io_hdr.flags & (CTL_FLAG_ABORT | 11020 CTL_FLAG_STATUS_SENT)) == 0)) 11021 return (CTL_ACTION_OVERLAP); 11022 11023 /* 11024 * The initiator attempted to send multiple tagged commands with 11025 * the same ID. (It's fine if different initiators have the same 11026 * tag ID.) 11027 * 11028 * Even if all of those conditions are true, we don't kill the I/O 11029 * if the command ahead of us has been aborted. We won't end up 11030 * sending it to the FETD, and it's perfectly legal to resend a 11031 * command with the same tag number as long as the previous 11032 * instance of this tag number has been aborted somehow. 11033 */ 11034 if ((pending_io->scsiio.tag_type != CTL_TAG_UNTAGGED) 11035 && (ooa_io->scsiio.tag_type != CTL_TAG_UNTAGGED) 11036 && (pending_io->scsiio.tag_num == ooa_io->scsiio.tag_num) 11037 && ((pending_io->io_hdr.nexus.targ_port == 11038 ooa_io->io_hdr.nexus.targ_port) 11039 && (pending_io->io_hdr.nexus.initid == 11040 ooa_io->io_hdr.nexus.initid)) 11041 && ((ooa_io->io_hdr.flags & (CTL_FLAG_ABORT | 11042 CTL_FLAG_STATUS_SENT)) == 0)) 11043 return (CTL_ACTION_OVERLAP_TAG); 11044 11045 /* 11046 * If we get a head of queue tag, SAM-3 says that we should 11047 * immediately execute it. 11048 * 11049 * What happens if this command would normally block for some other 11050 * reason? e.g. a request sense with a head of queue tag 11051 * immediately after a write. Normally that would block, but this 11052 * will result in its getting executed immediately... 11053 * 11054 * We currently return "pass" instead of "skip", so we'll end up 11055 * going through the rest of the queue to check for overlapped tags. 11056 * 11057 * XXX KDM check for other types of blockage first?? 11058 */ 11059 if (pending_io->scsiio.tag_type == CTL_TAG_HEAD_OF_QUEUE) 11060 return (CTL_ACTION_PASS); 11061 11062 /* 11063 * Ordered tags have to block until all items ahead of them 11064 * have completed. If we get called with an ordered tag, we always 11065 * block, if something else is ahead of us in the queue. 11066 */ 11067 if (pending_io->scsiio.tag_type == CTL_TAG_ORDERED) 11068 return (CTL_ACTION_BLOCK); 11069 11070 /* 11071 * Simple tags get blocked until all head of queue and ordered tags 11072 * ahead of them have completed. I'm lumping untagged commands in 11073 * with simple tags here. XXX KDM is that the right thing to do? 11074 */ 11075 if (((pending_io->scsiio.tag_type == CTL_TAG_UNTAGGED) 11076 || (pending_io->scsiio.tag_type == CTL_TAG_SIMPLE)) 11077 && ((ooa_io->scsiio.tag_type == CTL_TAG_HEAD_OF_QUEUE) 11078 || (ooa_io->scsiio.tag_type == CTL_TAG_ORDERED))) 11079 return (CTL_ACTION_BLOCK); 11080 11081 pending_entry = ctl_get_cmd_entry(&pending_io->scsiio, NULL); 11082 KASSERT(pending_entry->seridx < CTL_SERIDX_COUNT, 11083 ("%s: Invalid seridx %d for pending CDB %02x %02x @ %p", 11084 __func__, pending_entry->seridx, pending_io->scsiio.cdb[0], 11085 pending_io->scsiio.cdb[1], pending_io)); 11086 ooa_entry = ctl_get_cmd_entry(&ooa_io->scsiio, NULL); 11087 if (ooa_entry->seridx == CTL_SERIDX_INVLD) 11088 return (CTL_ACTION_PASS); /* Unsupported command in OOA queue */ 11089 KASSERT(ooa_entry->seridx < CTL_SERIDX_COUNT, 11090 ("%s: Invalid seridx %d for ooa CDB %02x %02x @ %p", 11091 __func__, ooa_entry->seridx, ooa_io->scsiio.cdb[0], 11092 ooa_io->scsiio.cdb[1], ooa_io)); 11093 11094 serialize_row = ctl_serialize_table[ooa_entry->seridx]; 11095 11096 switch (serialize_row[pending_entry->seridx]) { 11097 case CTL_SER_BLOCK: 11098 return (CTL_ACTION_BLOCK); 11099 case CTL_SER_EXTENT: 11100 return (ctl_extent_check(ooa_io, pending_io, 11101 (lun->be_lun && lun->be_lun->serseq == CTL_LUN_SERSEQ_ON))); 11102 case CTL_SER_EXTENTOPT: 11103 if ((lun->mode_pages.control_page[CTL_PAGE_CURRENT].queue_flags 11104 & SCP_QUEUE_ALG_MASK) != SCP_QUEUE_ALG_UNRESTRICTED) 11105 return (ctl_extent_check(ooa_io, pending_io, 11106 (lun->be_lun && 11107 lun->be_lun->serseq == CTL_LUN_SERSEQ_ON))); 11108 return (CTL_ACTION_PASS); 11109 case CTL_SER_EXTENTSEQ: 11110 if (lun->be_lun && lun->be_lun->serseq != CTL_LUN_SERSEQ_OFF) 11111 return (ctl_extent_check_seq(ooa_io, pending_io)); 11112 return (CTL_ACTION_PASS); 11113 case CTL_SER_PASS: 11114 return (CTL_ACTION_PASS); 11115 case CTL_SER_BLOCKOPT: 11116 if ((lun->mode_pages.control_page[CTL_PAGE_CURRENT].queue_flags 11117 & SCP_QUEUE_ALG_MASK) != SCP_QUEUE_ALG_UNRESTRICTED) 11118 return (CTL_ACTION_BLOCK); 11119 return (CTL_ACTION_PASS); 11120 case CTL_SER_SKIP: 11121 return (CTL_ACTION_SKIP); 11122 default: 11123 panic("%s: Invalid serialization value %d for %d => %d", 11124 __func__, serialize_row[pending_entry->seridx], 11125 pending_entry->seridx, ooa_entry->seridx); 11126 } 11127 11128 return (CTL_ACTION_ERROR); 11129} 11130 11131/* 11132 * Check for blockage or overlaps against the OOA (Order Of Arrival) queue. 11133 * Assumptions: 11134 * - pending_io is generally either incoming, or on the blocked queue 11135 * - starting I/O is the I/O we want to start the check with. 11136 */ 11137static ctl_action 11138ctl_check_ooa(struct ctl_lun *lun, union ctl_io *pending_io, 11139 union ctl_io *starting_io) 11140{ 11141 union ctl_io *ooa_io; 11142 ctl_action action; 11143 11144 mtx_assert(&lun->lun_lock, MA_OWNED); 11145 11146 /* 11147 * Run back along the OOA queue, starting with the current 11148 * blocked I/O and going through every I/O before it on the 11149 * queue. If starting_io is NULL, we'll just end up returning 11150 * CTL_ACTION_PASS. 11151 */ 11152 for (ooa_io = starting_io; ooa_io != NULL; 11153 ooa_io = (union ctl_io *)TAILQ_PREV(&ooa_io->io_hdr, ctl_ooaq, 11154 ooa_links)){ 11155 11156 /* 11157 * This routine just checks to see whether 11158 * cur_blocked is blocked by ooa_io, which is ahead 11159 * of it in the queue. It doesn't queue/dequeue 11160 * cur_blocked. 11161 */ 11162 action = ctl_check_for_blockage(lun, pending_io, ooa_io); 11163 switch (action) { 11164 case CTL_ACTION_BLOCK: 11165 case CTL_ACTION_OVERLAP: 11166 case CTL_ACTION_OVERLAP_TAG: 11167 case CTL_ACTION_SKIP: 11168 case CTL_ACTION_ERROR: 11169 return (action); 11170 break; /* NOTREACHED */ 11171 case CTL_ACTION_PASS: 11172 break; 11173 default: 11174 panic("%s: Invalid action %d\n", __func__, action); 11175 } 11176 } 11177 11178 return (CTL_ACTION_PASS); 11179} 11180 11181/* 11182 * Assumptions: 11183 * - An I/O has just completed, and has been removed from the per-LUN OOA 11184 * queue, so some items on the blocked queue may now be unblocked. 11185 */ 11186static int 11187ctl_check_blocked(struct ctl_lun *lun) 11188{ 11189 struct ctl_softc *softc = lun->ctl_softc; 11190 union ctl_io *cur_blocked, *next_blocked; 11191 11192 mtx_assert(&lun->lun_lock, MA_OWNED); 11193 11194 /* 11195 * Run forward from the head of the blocked queue, checking each 11196 * entry against the I/Os prior to it on the OOA queue to see if 11197 * there is still any blockage. 11198 * 11199 * We cannot use the TAILQ_FOREACH() macro, because it can't deal 11200 * with our removing a variable on it while it is traversing the 11201 * list. 11202 */ 11203 for (cur_blocked = (union ctl_io *)TAILQ_FIRST(&lun->blocked_queue); 11204 cur_blocked != NULL; cur_blocked = next_blocked) { 11205 union ctl_io *prev_ooa; 11206 ctl_action action; 11207 11208 next_blocked = (union ctl_io *)TAILQ_NEXT(&cur_blocked->io_hdr, 11209 blocked_links); 11210 11211 prev_ooa = (union ctl_io *)TAILQ_PREV(&cur_blocked->io_hdr, 11212 ctl_ooaq, ooa_links); 11213 11214 /* 11215 * If cur_blocked happens to be the first item in the OOA 11216 * queue now, prev_ooa will be NULL, and the action 11217 * returned will just be CTL_ACTION_PASS. 11218 */ 11219 action = ctl_check_ooa(lun, cur_blocked, prev_ooa); 11220 11221 switch (action) { 11222 case CTL_ACTION_BLOCK: 11223 /* Nothing to do here, still blocked */ 11224 break; 11225 case CTL_ACTION_OVERLAP: 11226 case CTL_ACTION_OVERLAP_TAG: 11227 /* 11228 * This shouldn't happen! In theory we've already 11229 * checked this command for overlap... 11230 */ 11231 break; 11232 case CTL_ACTION_PASS: 11233 case CTL_ACTION_SKIP: { 11234 const struct ctl_cmd_entry *entry; 11235 11236 /* 11237 * The skip case shouldn't happen, this transaction 11238 * should have never made it onto the blocked queue. 11239 */ 11240 /* 11241 * This I/O is no longer blocked, we can remove it 11242 * from the blocked queue. Since this is a TAILQ 11243 * (doubly linked list), we can do O(1) removals 11244 * from any place on the list. 11245 */ 11246 TAILQ_REMOVE(&lun->blocked_queue, &cur_blocked->io_hdr, 11247 blocked_links); 11248 cur_blocked->io_hdr.flags &= ~CTL_FLAG_BLOCKED; 11249 11250 if ((softc->ha_mode != CTL_HA_MODE_XFER) && 11251 (cur_blocked->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)){ 11252 /* 11253 * Need to send IO back to original side to 11254 * run 11255 */ 11256 union ctl_ha_msg msg_info; 11257 11258 cur_blocked->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 11259 msg_info.hdr.original_sc = 11260 cur_blocked->io_hdr.original_sc; 11261 msg_info.hdr.serializing_sc = cur_blocked; 11262 msg_info.hdr.msg_type = CTL_MSG_R2R; 11263 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 11264 sizeof(msg_info.hdr), M_NOWAIT); 11265 break; 11266 } 11267 entry = ctl_get_cmd_entry(&cur_blocked->scsiio, NULL); 11268 11269 /* 11270 * Check this I/O for LUN state changes that may 11271 * have happened while this command was blocked. 11272 * The LUN state may have been changed by a command 11273 * ahead of us in the queue, so we need to re-check 11274 * for any states that can be caused by SCSI 11275 * commands. 11276 */ 11277 if (ctl_scsiio_lun_check(lun, entry, 11278 &cur_blocked->scsiio) == 0) { 11279 cur_blocked->io_hdr.flags |= 11280 CTL_FLAG_IS_WAS_ON_RTR; 11281 ctl_enqueue_rtr(cur_blocked); 11282 } else 11283 ctl_done(cur_blocked); 11284 break; 11285 } 11286 default: 11287 /* 11288 * This probably shouldn't happen -- we shouldn't 11289 * get CTL_ACTION_ERROR, or anything else. 11290 */ 11291 break; 11292 } 11293 } 11294 11295 return (CTL_RETVAL_COMPLETE); 11296} 11297 11298/* 11299 * This routine (with one exception) checks LUN flags that can be set by 11300 * commands ahead of us in the OOA queue. These flags have to be checked 11301 * when a command initially comes in, and when we pull a command off the 11302 * blocked queue and are preparing to execute it. The reason we have to 11303 * check these flags for commands on the blocked queue is that the LUN 11304 * state may have been changed by a command ahead of us while we're on the 11305 * blocked queue. 11306 * 11307 * Ordering is somewhat important with these checks, so please pay 11308 * careful attention to the placement of any new checks. 11309 */ 11310static int 11311ctl_scsiio_lun_check(struct ctl_lun *lun, 11312 const struct ctl_cmd_entry *entry, struct ctl_scsiio *ctsio) 11313{ 11314 struct ctl_softc *softc = lun->ctl_softc; 11315 int retval; 11316 uint32_t residx; 11317 11318 retval = 0; 11319 11320 mtx_assert(&lun->lun_lock, MA_OWNED); 11321 11322 /* 11323 * If this shelf is a secondary shelf controller, we may have to 11324 * reject some commands disallowed by HA mode and link state. 11325 */ 11326 if ((lun->flags & CTL_LUN_PRIMARY_SC) == 0) { 11327 if (softc->ha_link == CTL_HA_LINK_OFFLINE && 11328 (entry->flags & CTL_CMD_FLAG_OK_ON_UNAVAIL) == 0) { 11329 ctl_set_lun_unavail(ctsio); 11330 retval = 1; 11331 goto bailout; 11332 } 11333 if ((lun->flags & CTL_LUN_PEER_SC_PRIMARY) == 0 && 11334 (entry->flags & CTL_CMD_FLAG_OK_ON_UNAVAIL) == 0) { 11335 ctl_set_lun_transit(ctsio); 11336 retval = 1; 11337 goto bailout; 11338 } 11339 if (softc->ha_mode == CTL_HA_MODE_ACT_STBY && 11340 (entry->flags & CTL_CMD_FLAG_OK_ON_STANDBY) == 0) { 11341 ctl_set_lun_standby(ctsio); 11342 retval = 1; 11343 goto bailout; 11344 } 11345 11346 /* The rest of checks are only done on executing side */ 11347 if (softc->ha_mode == CTL_HA_MODE_XFER) 11348 goto bailout; 11349 } 11350 11351 if (entry->pattern & CTL_LUN_PAT_WRITE) { 11352 if (lun->be_lun && 11353 lun->be_lun->flags & CTL_LUN_FLAG_READONLY) { 11354 ctl_set_hw_write_protected(ctsio); 11355 retval = 1; 11356 goto bailout; 11357 } 11358 if ((lun->mode_pages.control_page[CTL_PAGE_CURRENT] 11359 .eca_and_aen & SCP_SWP) != 0) { 11360 ctl_set_sense(ctsio, /*current_error*/ 1, 11361 /*sense_key*/ SSD_KEY_DATA_PROTECT, 11362 /*asc*/ 0x27, /*ascq*/ 0x02, SSD_ELEM_NONE); 11363 retval = 1; 11364 goto bailout; 11365 } 11366 } 11367 11368 /* 11369 * Check for a reservation conflict. If this command isn't allowed 11370 * even on reserved LUNs, and if this initiator isn't the one who 11371 * reserved us, reject the command with a reservation conflict. 11372 */ 11373 residx = ctl_get_initindex(&ctsio->io_hdr.nexus); 11374 if ((lun->flags & CTL_LUN_RESERVED) 11375 && ((entry->flags & CTL_CMD_FLAG_ALLOW_ON_RESV) == 0)) { 11376 if (lun->res_idx != residx) { 11377 ctl_set_reservation_conflict(ctsio); 11378 retval = 1; 11379 goto bailout; 11380 } 11381 } 11382 11383 if ((lun->flags & CTL_LUN_PR_RESERVED) == 0 || 11384 (entry->flags & CTL_CMD_FLAG_ALLOW_ON_PR_RESV)) { 11385 /* No reservation or command is allowed. */; 11386 } else if ((entry->flags & CTL_CMD_FLAG_ALLOW_ON_PR_WRESV) && 11387 (lun->pr_res_type == SPR_TYPE_WR_EX || 11388 lun->pr_res_type == SPR_TYPE_WR_EX_RO || 11389 lun->pr_res_type == SPR_TYPE_WR_EX_AR)) { 11390 /* The command is allowed for Write Exclusive resv. */; 11391 } else { 11392 /* 11393 * if we aren't registered or it's a res holder type 11394 * reservation and this isn't the res holder then set a 11395 * conflict. 11396 */ 11397 if (ctl_get_prkey(lun, residx) == 0 || 11398 (residx != lun->pr_res_idx && lun->pr_res_type < 4)) { 11399 ctl_set_reservation_conflict(ctsio); 11400 retval = 1; 11401 goto bailout; 11402 } 11403 } 11404 11405 if ((entry->flags & CTL_CMD_FLAG_OK_ON_NO_MEDIA) == 0) { 11406 if (lun->flags & CTL_LUN_EJECTED) 11407 ctl_set_lun_ejected(ctsio); 11408 else if (lun->flags & CTL_LUN_NO_MEDIA) { 11409 if (lun->flags & CTL_LUN_REMOVABLE) 11410 ctl_set_lun_no_media(ctsio); 11411 else 11412 ctl_set_lun_int_reqd(ctsio); 11413 } else if (lun->flags & CTL_LUN_STOPPED) 11414 ctl_set_lun_stopped(ctsio); 11415 else 11416 goto bailout; 11417 retval = 1; 11418 goto bailout; 11419 } 11420 11421bailout: 11422 return (retval); 11423} 11424 11425static void 11426ctl_failover_io(union ctl_io *io, int have_lock) 11427{ 11428 ctl_set_busy(&io->scsiio); 11429 ctl_done(io); 11430} 11431 11432static void 11433ctl_failover_lun(union ctl_io *rio) 11434{ 11435 struct ctl_softc *softc = control_softc; 11436 struct ctl_lun *lun; 11437 struct ctl_io_hdr *io, *next_io; 11438 uint32_t targ_lun; 11439 11440 targ_lun = rio->io_hdr.nexus.targ_mapped_lun; 11441 CTL_DEBUG_PRINT(("FAILOVER for lun %ju\n", targ_lun)); 11442 11443 /* Find and lock the LUN. */ 11444 mtx_lock(&softc->ctl_lock); 11445 if ((targ_lun < CTL_MAX_LUNS) && 11446 ((lun = softc->ctl_luns[targ_lun]) != NULL)) { 11447 mtx_lock(&lun->lun_lock); 11448 mtx_unlock(&softc->ctl_lock); 11449 if (lun->flags & CTL_LUN_DISABLED) { 11450 mtx_unlock(&lun->lun_lock); 11451 return; 11452 } 11453 } else { 11454 mtx_unlock(&softc->ctl_lock); 11455 return; 11456 } 11457 11458 if (softc->ha_mode == CTL_HA_MODE_XFER) { 11459 TAILQ_FOREACH_SAFE(io, &lun->ooa_queue, ooa_links, next_io) { 11460 /* We are master */ 11461 if (io->flags & CTL_FLAG_FROM_OTHER_SC) { 11462 if (io->flags & CTL_FLAG_IO_ACTIVE) { 11463 io->flags |= CTL_FLAG_ABORT; 11464 io->flags |= CTL_FLAG_FAILOVER; 11465 } else { /* This can be only due to DATAMOVE */ 11466 io->msg_type = CTL_MSG_DATAMOVE_DONE; 11467 io->flags &= ~CTL_FLAG_DMA_INPROG; 11468 io->flags |= CTL_FLAG_IO_ACTIVE; 11469 io->port_status = 31340; 11470 ctl_enqueue_isc((union ctl_io *)io); 11471 } 11472 } 11473 /* We are slave */ 11474 if (io->flags & CTL_FLAG_SENT_2OTHER_SC) { 11475 io->flags &= ~CTL_FLAG_SENT_2OTHER_SC; 11476 if (io->flags & CTL_FLAG_IO_ACTIVE) { 11477 io->flags |= CTL_FLAG_FAILOVER; 11478 } else { 11479 ctl_set_busy(&((union ctl_io *)io)-> 11480 scsiio); 11481 ctl_done((union ctl_io *)io); 11482 } 11483 } 11484 } 11485 } else { /* SERIALIZE modes */ 11486 TAILQ_FOREACH_SAFE(io, &lun->blocked_queue, blocked_links, 11487 next_io) { 11488 /* We are master */ 11489 if (io->flags & CTL_FLAG_FROM_OTHER_SC) { 11490 TAILQ_REMOVE(&lun->blocked_queue, io, 11491 blocked_links); 11492 io->flags &= ~CTL_FLAG_BLOCKED; 11493 TAILQ_REMOVE(&lun->ooa_queue, io, ooa_links); 11494 ctl_free_io((union ctl_io *)io); 11495 } 11496 } 11497 TAILQ_FOREACH_SAFE(io, &lun->ooa_queue, ooa_links, next_io) { 11498 /* We are master */ 11499 if (io->flags & CTL_FLAG_FROM_OTHER_SC) { 11500 TAILQ_REMOVE(&lun->ooa_queue, io, ooa_links); 11501 ctl_free_io((union ctl_io *)io); 11502 } 11503 /* We are slave */ 11504 if (io->flags & CTL_FLAG_SENT_2OTHER_SC) { 11505 io->flags &= ~CTL_FLAG_SENT_2OTHER_SC; 11506 if (!(io->flags & CTL_FLAG_IO_ACTIVE)) { 11507 ctl_set_busy(&((union ctl_io *)io)-> 11508 scsiio); 11509 ctl_done((union ctl_io *)io); 11510 } 11511 } 11512 } 11513 ctl_check_blocked(lun); 11514 } 11515 mtx_unlock(&lun->lun_lock); 11516} 11517 11518static int 11519ctl_scsiio_precheck(struct ctl_softc *softc, struct ctl_scsiio *ctsio) 11520{ 11521 struct ctl_lun *lun; 11522 const struct ctl_cmd_entry *entry; 11523 uint32_t initidx, targ_lun; 11524 int retval; 11525 11526 retval = 0; 11527 11528 lun = NULL; 11529 11530 targ_lun = ctsio->io_hdr.nexus.targ_mapped_lun; 11531 if ((targ_lun < CTL_MAX_LUNS) 11532 && ((lun = softc->ctl_luns[targ_lun]) != NULL)) { 11533 /* 11534 * If the LUN is invalid, pretend that it doesn't exist. 11535 * It will go away as soon as all pending I/O has been 11536 * completed. 11537 */ 11538 mtx_lock(&lun->lun_lock); 11539 if (lun->flags & CTL_LUN_DISABLED) { 11540 mtx_unlock(&lun->lun_lock); 11541 lun = NULL; 11542 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr = NULL; 11543 ctsio->io_hdr.ctl_private[CTL_PRIV_BACKEND_LUN].ptr = NULL; 11544 } else { 11545 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr = lun; 11546 ctsio->io_hdr.ctl_private[CTL_PRIV_BACKEND_LUN].ptr = 11547 lun->be_lun; 11548 11549 /* 11550 * Every I/O goes into the OOA queue for a 11551 * particular LUN, and stays there until completion. 11552 */ 11553#ifdef CTL_TIME_IO 11554 if (TAILQ_EMPTY(&lun->ooa_queue)) { 11555 lun->idle_time += getsbinuptime() - 11556 lun->last_busy; 11557 } 11558#endif 11559 TAILQ_INSERT_TAIL(&lun->ooa_queue, &ctsio->io_hdr, 11560 ooa_links); 11561 } 11562 } else { 11563 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr = NULL; 11564 ctsio->io_hdr.ctl_private[CTL_PRIV_BACKEND_LUN].ptr = NULL; 11565 } 11566 11567 /* Get command entry and return error if it is unsuppotyed. */ 11568 entry = ctl_validate_command(ctsio); 11569 if (entry == NULL) { 11570 if (lun) 11571 mtx_unlock(&lun->lun_lock); 11572 return (retval); 11573 } 11574 11575 ctsio->io_hdr.flags &= ~CTL_FLAG_DATA_MASK; 11576 ctsio->io_hdr.flags |= entry->flags & CTL_FLAG_DATA_MASK; 11577 11578 /* 11579 * Check to see whether we can send this command to LUNs that don't 11580 * exist. This should pretty much only be the case for inquiry 11581 * and request sense. Further checks, below, really require having 11582 * a LUN, so we can't really check the command anymore. Just put 11583 * it on the rtr queue. 11584 */ 11585 if (lun == NULL) { 11586 if (entry->flags & CTL_CMD_FLAG_OK_ON_NO_LUN) { 11587 ctsio->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 11588 ctl_enqueue_rtr((union ctl_io *)ctsio); 11589 return (retval); 11590 } 11591 11592 ctl_set_unsupported_lun(ctsio); 11593 ctl_done((union ctl_io *)ctsio); 11594 CTL_DEBUG_PRINT(("ctl_scsiio_precheck: bailing out due to invalid LUN\n")); 11595 return (retval); 11596 } else { 11597 /* 11598 * Make sure we support this particular command on this LUN. 11599 * e.g., we don't support writes to the control LUN. 11600 */ 11601 if (!ctl_cmd_applicable(lun->be_lun->lun_type, entry)) { 11602 mtx_unlock(&lun->lun_lock); 11603 ctl_set_invalid_opcode(ctsio); 11604 ctl_done((union ctl_io *)ctsio); 11605 return (retval); 11606 } 11607 } 11608 11609 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 11610 11611#ifdef CTL_WITH_CA 11612 /* 11613 * If we've got a request sense, it'll clear the contingent 11614 * allegiance condition. Otherwise, if we have a CA condition for 11615 * this initiator, clear it, because it sent down a command other 11616 * than request sense. 11617 */ 11618 if ((ctsio->cdb[0] != REQUEST_SENSE) 11619 && (ctl_is_set(lun->have_ca, initidx))) 11620 ctl_clear_mask(lun->have_ca, initidx); 11621#endif 11622 11623 /* 11624 * If the command has this flag set, it handles its own unit 11625 * attention reporting, we shouldn't do anything. Otherwise we 11626 * check for any pending unit attentions, and send them back to the 11627 * initiator. We only do this when a command initially comes in, 11628 * not when we pull it off the blocked queue. 11629 * 11630 * According to SAM-3, section 5.3.2, the order that things get 11631 * presented back to the host is basically unit attentions caused 11632 * by some sort of reset event, busy status, reservation conflicts 11633 * or task set full, and finally any other status. 11634 * 11635 * One issue here is that some of the unit attentions we report 11636 * don't fall into the "reset" category (e.g. "reported luns data 11637 * has changed"). So reporting it here, before the reservation 11638 * check, may be technically wrong. I guess the only thing to do 11639 * would be to check for and report the reset events here, and then 11640 * check for the other unit attention types after we check for a 11641 * reservation conflict. 11642 * 11643 * XXX KDM need to fix this 11644 */ 11645 if ((entry->flags & CTL_CMD_FLAG_NO_SENSE) == 0) { 11646 ctl_ua_type ua_type; 11647 11648 ua_type = ctl_build_ua(lun, initidx, &ctsio->sense_data, 11649 SSD_TYPE_NONE); 11650 if (ua_type != CTL_UA_NONE) { 11651 mtx_unlock(&lun->lun_lock); 11652 ctsio->scsi_status = SCSI_STATUS_CHECK_COND; 11653 ctsio->io_hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 11654 ctsio->sense_len = SSD_FULL_SIZE; 11655 ctl_done((union ctl_io *)ctsio); 11656 return (retval); 11657 } 11658 } 11659 11660 11661 if (ctl_scsiio_lun_check(lun, entry, ctsio) != 0) { 11662 mtx_unlock(&lun->lun_lock); 11663 ctl_done((union ctl_io *)ctsio); 11664 return (retval); 11665 } 11666 11667 /* 11668 * XXX CHD this is where we want to send IO to other side if 11669 * this LUN is secondary on this SC. We will need to make a copy 11670 * of the IO and flag the IO on this side as SENT_2OTHER and the flag 11671 * the copy we send as FROM_OTHER. 11672 * We also need to stuff the address of the original IO so we can 11673 * find it easily. Something similar will need be done on the other 11674 * side so when we are done we can find the copy. 11675 */ 11676 if ((lun->flags & CTL_LUN_PRIMARY_SC) == 0 && 11677 (lun->flags & CTL_LUN_PEER_SC_PRIMARY) != 0 && 11678 (entry->flags & CTL_CMD_FLAG_RUN_HERE) == 0) { 11679 union ctl_ha_msg msg_info; 11680 int isc_retval; 11681 11682 ctsio->io_hdr.flags |= CTL_FLAG_SENT_2OTHER_SC; 11683 ctsio->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 11684 mtx_unlock(&lun->lun_lock); 11685 11686 msg_info.hdr.msg_type = CTL_MSG_SERIALIZE; 11687 msg_info.hdr.original_sc = (union ctl_io *)ctsio; 11688 msg_info.hdr.serializing_sc = NULL; 11689 msg_info.hdr.nexus = ctsio->io_hdr.nexus; 11690 msg_info.scsi.tag_num = ctsio->tag_num; 11691 msg_info.scsi.tag_type = ctsio->tag_type; 11692 msg_info.scsi.cdb_len = ctsio->cdb_len; 11693 memcpy(msg_info.scsi.cdb, ctsio->cdb, CTL_MAX_CDBLEN); 11694 11695 if ((isc_retval = ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 11696 sizeof(msg_info.scsi) - sizeof(msg_info.scsi.sense_data), 11697 M_WAITOK)) > CTL_HA_STATUS_SUCCESS) { 11698 ctl_set_busy(ctsio); 11699 ctl_done((union ctl_io *)ctsio); 11700 return (retval); 11701 } 11702 return (retval); 11703 } 11704 11705 switch (ctl_check_ooa(lun, (union ctl_io *)ctsio, 11706 (union ctl_io *)TAILQ_PREV(&ctsio->io_hdr, 11707 ctl_ooaq, ooa_links))) { 11708 case CTL_ACTION_BLOCK: 11709 ctsio->io_hdr.flags |= CTL_FLAG_BLOCKED; 11710 TAILQ_INSERT_TAIL(&lun->blocked_queue, &ctsio->io_hdr, 11711 blocked_links); 11712 mtx_unlock(&lun->lun_lock); 11713 return (retval); 11714 case CTL_ACTION_PASS: 11715 case CTL_ACTION_SKIP: 11716 ctsio->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 11717 mtx_unlock(&lun->lun_lock); 11718 ctl_enqueue_rtr((union ctl_io *)ctsio); 11719 break; 11720 case CTL_ACTION_OVERLAP: 11721 mtx_unlock(&lun->lun_lock); 11722 ctl_set_overlapped_cmd(ctsio); 11723 ctl_done((union ctl_io *)ctsio); 11724 break; 11725 case CTL_ACTION_OVERLAP_TAG: 11726 mtx_unlock(&lun->lun_lock); 11727 ctl_set_overlapped_tag(ctsio, ctsio->tag_num & 0xff); 11728 ctl_done((union ctl_io *)ctsio); 11729 break; 11730 case CTL_ACTION_ERROR: 11731 default: 11732 mtx_unlock(&lun->lun_lock); 11733 ctl_set_internal_failure(ctsio, 11734 /*sks_valid*/ 0, 11735 /*retry_count*/ 0); 11736 ctl_done((union ctl_io *)ctsio); 11737 break; 11738 } 11739 return (retval); 11740} 11741 11742const struct ctl_cmd_entry * 11743ctl_get_cmd_entry(struct ctl_scsiio *ctsio, int *sa) 11744{ 11745 const struct ctl_cmd_entry *entry; 11746 int service_action; 11747 11748 entry = &ctl_cmd_table[ctsio->cdb[0]]; 11749 if (sa) 11750 *sa = ((entry->flags & CTL_CMD_FLAG_SA5) != 0); 11751 if (entry->flags & CTL_CMD_FLAG_SA5) { 11752 service_action = ctsio->cdb[1] & SERVICE_ACTION_MASK; 11753 entry = &((const struct ctl_cmd_entry *) 11754 entry->execute)[service_action]; 11755 } 11756 return (entry); 11757} 11758 11759const struct ctl_cmd_entry * 11760ctl_validate_command(struct ctl_scsiio *ctsio) 11761{ 11762 const struct ctl_cmd_entry *entry; 11763 int i, sa; 11764 uint8_t diff; 11765 11766 entry = ctl_get_cmd_entry(ctsio, &sa); 11767 if (entry->execute == NULL) { 11768 if (sa) 11769 ctl_set_invalid_field(ctsio, 11770 /*sks_valid*/ 1, 11771 /*command*/ 1, 11772 /*field*/ 1, 11773 /*bit_valid*/ 1, 11774 /*bit*/ 4); 11775 else 11776 ctl_set_invalid_opcode(ctsio); 11777 ctl_done((union ctl_io *)ctsio); 11778 return (NULL); 11779 } 11780 KASSERT(entry->length > 0, 11781 ("Not defined length for command 0x%02x/0x%02x", 11782 ctsio->cdb[0], ctsio->cdb[1])); 11783 for (i = 1; i < entry->length; i++) { 11784 diff = ctsio->cdb[i] & ~entry->usage[i - 1]; 11785 if (diff == 0) 11786 continue; 11787 ctl_set_invalid_field(ctsio, 11788 /*sks_valid*/ 1, 11789 /*command*/ 1, 11790 /*field*/ i, 11791 /*bit_valid*/ 1, 11792 /*bit*/ fls(diff) - 1); 11793 ctl_done((union ctl_io *)ctsio); 11794 return (NULL); 11795 } 11796 return (entry); 11797} 11798 11799static int 11800ctl_cmd_applicable(uint8_t lun_type, const struct ctl_cmd_entry *entry) 11801{ 11802 11803 switch (lun_type) { 11804 case T_DIRECT: 11805 if ((entry->flags & CTL_CMD_FLAG_OK_ON_DIRECT) == 0) 11806 return (0); 11807 break; 11808 case T_PROCESSOR: 11809 if ((entry->flags & CTL_CMD_FLAG_OK_ON_PROC) == 0) 11810 return (0); 11811 break; 11812 case T_CDROM: 11813 if ((entry->flags & CTL_CMD_FLAG_OK_ON_CDROM) == 0) 11814 return (0); 11815 break; 11816 default: 11817 return (0); 11818 } 11819 return (1); 11820} 11821 11822static int 11823ctl_scsiio(struct ctl_scsiio *ctsio) 11824{ 11825 int retval; 11826 const struct ctl_cmd_entry *entry; 11827 11828 retval = CTL_RETVAL_COMPLETE; 11829 11830 CTL_DEBUG_PRINT(("ctl_scsiio cdb[0]=%02X\n", ctsio->cdb[0])); 11831 11832 entry = ctl_get_cmd_entry(ctsio, NULL); 11833 11834 /* 11835 * If this I/O has been aborted, just send it straight to 11836 * ctl_done() without executing it. 11837 */ 11838 if (ctsio->io_hdr.flags & CTL_FLAG_ABORT) { 11839 ctl_done((union ctl_io *)ctsio); 11840 goto bailout; 11841 } 11842 11843 /* 11844 * All the checks should have been handled by ctl_scsiio_precheck(). 11845 * We should be clear now to just execute the I/O. 11846 */ 11847 retval = entry->execute(ctsio); 11848 11849bailout: 11850 return (retval); 11851} 11852 11853/* 11854 * Since we only implement one target right now, a bus reset simply resets 11855 * our single target. 11856 */ 11857static int 11858ctl_bus_reset(struct ctl_softc *softc, union ctl_io *io) 11859{ 11860 return(ctl_target_reset(softc, io, CTL_UA_BUS_RESET)); 11861} 11862 11863static int 11864ctl_target_reset(struct ctl_softc *softc, union ctl_io *io, 11865 ctl_ua_type ua_type) 11866{ 11867 struct ctl_port *port; 11868 struct ctl_lun *lun; 11869 int retval; 11870 11871 if (!(io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)) { 11872 union ctl_ha_msg msg_info; 11873 11874 msg_info.hdr.nexus = io->io_hdr.nexus; 11875 if (ua_type==CTL_UA_TARG_RESET) 11876 msg_info.task.task_action = CTL_TASK_TARGET_RESET; 11877 else 11878 msg_info.task.task_action = CTL_TASK_BUS_RESET; 11879 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 11880 msg_info.hdr.original_sc = NULL; 11881 msg_info.hdr.serializing_sc = NULL; 11882 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 11883 sizeof(msg_info.task), M_WAITOK); 11884 } 11885 retval = 0; 11886 11887 mtx_lock(&softc->ctl_lock); 11888 port = ctl_io_port(&io->io_hdr); 11889 STAILQ_FOREACH(lun, &softc->lun_list, links) { 11890 if (port != NULL && 11891 ctl_lun_map_to_port(port, lun->lun) >= CTL_MAX_LUNS) 11892 continue; 11893 retval += ctl_do_lun_reset(lun, io, ua_type); 11894 } 11895 mtx_unlock(&softc->ctl_lock); 11896 io->taskio.task_status = CTL_TASK_FUNCTION_COMPLETE; 11897 return (retval); 11898} 11899 11900/* 11901 * The LUN should always be set. The I/O is optional, and is used to 11902 * distinguish between I/Os sent by this initiator, and by other 11903 * initiators. We set unit attention for initiators other than this one. 11904 * SAM-3 is vague on this point. It does say that a unit attention should 11905 * be established for other initiators when a LUN is reset (see section 11906 * 5.7.3), but it doesn't specifically say that the unit attention should 11907 * be established for this particular initiator when a LUN is reset. Here 11908 * is the relevant text, from SAM-3 rev 8: 11909 * 11910 * 5.7.2 When a SCSI initiator port aborts its own tasks 11911 * 11912 * When a SCSI initiator port causes its own task(s) to be aborted, no 11913 * notification that the task(s) have been aborted shall be returned to 11914 * the SCSI initiator port other than the completion response for the 11915 * command or task management function action that caused the task(s) to 11916 * be aborted and notification(s) associated with related effects of the 11917 * action (e.g., a reset unit attention condition). 11918 * 11919 * XXX KDM for now, we're setting unit attention for all initiators. 11920 */ 11921static int 11922ctl_do_lun_reset(struct ctl_lun *lun, union ctl_io *io, ctl_ua_type ua_type) 11923{ 11924 union ctl_io *xio; 11925#if 0 11926 uint32_t initidx; 11927#endif 11928 int i; 11929 11930 mtx_lock(&lun->lun_lock); 11931 /* 11932 * Run through the OOA queue and abort each I/O. 11933 */ 11934 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 11935 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 11936 xio->io_hdr.flags |= CTL_FLAG_ABORT | CTL_FLAG_ABORT_STATUS; 11937 } 11938 11939 /* 11940 * This version sets unit attention for every 11941 */ 11942#if 0 11943 initidx = ctl_get_initindex(&io->io_hdr.nexus); 11944 ctl_est_ua_all(lun, initidx, ua_type); 11945#else 11946 ctl_est_ua_all(lun, -1, ua_type); 11947#endif 11948 11949 /* 11950 * A reset (any kind, really) clears reservations established with 11951 * RESERVE/RELEASE. It does not clear reservations established 11952 * with PERSISTENT RESERVE OUT, but we don't support that at the 11953 * moment anyway. See SPC-2, section 5.6. SPC-3 doesn't address 11954 * reservations made with the RESERVE/RELEASE commands, because 11955 * those commands are obsolete in SPC-3. 11956 */ 11957 lun->flags &= ~CTL_LUN_RESERVED; 11958 11959#ifdef CTL_WITH_CA 11960 for (i = 0; i < CTL_MAX_INITIATORS; i++) 11961 ctl_clear_mask(lun->have_ca, i); 11962#endif 11963 lun->prevent_count = 0; 11964 for (i = 0; i < CTL_MAX_INITIATORS; i++) 11965 ctl_clear_mask(lun->prevent, i); 11966 mtx_unlock(&lun->lun_lock); 11967 11968 return (0); 11969} 11970 11971static int 11972ctl_lun_reset(struct ctl_softc *softc, union ctl_io *io) 11973{ 11974 struct ctl_lun *lun; 11975 uint32_t targ_lun; 11976 int retval; 11977 11978 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 11979 mtx_lock(&softc->ctl_lock); 11980 if ((targ_lun >= CTL_MAX_LUNS) || 11981 (lun = softc->ctl_luns[targ_lun]) == NULL) { 11982 mtx_unlock(&softc->ctl_lock); 11983 io->taskio.task_status = CTL_TASK_LUN_DOES_NOT_EXIST; 11984 return (1); 11985 } 11986 retval = ctl_do_lun_reset(lun, io, CTL_UA_LUN_RESET); 11987 mtx_unlock(&softc->ctl_lock); 11988 io->taskio.task_status = CTL_TASK_FUNCTION_COMPLETE; 11989 11990 if ((io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) == 0) { 11991 union ctl_ha_msg msg_info; 11992 11993 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 11994 msg_info.hdr.nexus = io->io_hdr.nexus; 11995 msg_info.task.task_action = CTL_TASK_LUN_RESET; 11996 msg_info.hdr.original_sc = NULL; 11997 msg_info.hdr.serializing_sc = NULL; 11998 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 11999 sizeof(msg_info.task), M_WAITOK); 12000 } 12001 return (retval); 12002} 12003 12004static void 12005ctl_abort_tasks_lun(struct ctl_lun *lun, uint32_t targ_port, uint32_t init_id, 12006 int other_sc) 12007{ 12008 union ctl_io *xio; 12009 12010 mtx_assert(&lun->lun_lock, MA_OWNED); 12011 12012 /* 12013 * Run through the OOA queue and attempt to find the given I/O. 12014 * The target port, initiator ID, tag type and tag number have to 12015 * match the values that we got from the initiator. If we have an 12016 * untagged command to abort, simply abort the first untagged command 12017 * we come to. We only allow one untagged command at a time of course. 12018 */ 12019 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 12020 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 12021 12022 if ((targ_port == UINT32_MAX || 12023 targ_port == xio->io_hdr.nexus.targ_port) && 12024 (init_id == UINT32_MAX || 12025 init_id == xio->io_hdr.nexus.initid)) { 12026 if (targ_port != xio->io_hdr.nexus.targ_port || 12027 init_id != xio->io_hdr.nexus.initid) 12028 xio->io_hdr.flags |= CTL_FLAG_ABORT_STATUS; 12029 xio->io_hdr.flags |= CTL_FLAG_ABORT; 12030 if (!other_sc && !(lun->flags & CTL_LUN_PRIMARY_SC)) { 12031 union ctl_ha_msg msg_info; 12032 12033 msg_info.hdr.nexus = xio->io_hdr.nexus; 12034 msg_info.task.task_action = CTL_TASK_ABORT_TASK; 12035 msg_info.task.tag_num = xio->scsiio.tag_num; 12036 msg_info.task.tag_type = xio->scsiio.tag_type; 12037 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 12038 msg_info.hdr.original_sc = NULL; 12039 msg_info.hdr.serializing_sc = NULL; 12040 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 12041 sizeof(msg_info.task), M_NOWAIT); 12042 } 12043 } 12044 } 12045} 12046 12047static int 12048ctl_abort_task_set(union ctl_io *io) 12049{ 12050 struct ctl_softc *softc = control_softc; 12051 struct ctl_lun *lun; 12052 uint32_t targ_lun; 12053 12054 /* 12055 * Look up the LUN. 12056 */ 12057 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12058 mtx_lock(&softc->ctl_lock); 12059 if ((targ_lun >= CTL_MAX_LUNS) || 12060 (lun = softc->ctl_luns[targ_lun]) == NULL) { 12061 mtx_unlock(&softc->ctl_lock); 12062 io->taskio.task_status = CTL_TASK_LUN_DOES_NOT_EXIST; 12063 return (1); 12064 } 12065 12066 mtx_lock(&lun->lun_lock); 12067 mtx_unlock(&softc->ctl_lock); 12068 if (io->taskio.task_action == CTL_TASK_ABORT_TASK_SET) { 12069 ctl_abort_tasks_lun(lun, io->io_hdr.nexus.targ_port, 12070 io->io_hdr.nexus.initid, 12071 (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) != 0); 12072 } else { /* CTL_TASK_CLEAR_TASK_SET */ 12073 ctl_abort_tasks_lun(lun, UINT32_MAX, UINT32_MAX, 12074 (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) != 0); 12075 } 12076 mtx_unlock(&lun->lun_lock); 12077 io->taskio.task_status = CTL_TASK_FUNCTION_COMPLETE; 12078 return (0); 12079} 12080 12081static int 12082ctl_i_t_nexus_reset(union ctl_io *io) 12083{ 12084 struct ctl_softc *softc = control_softc; 12085 struct ctl_lun *lun; 12086 uint32_t initidx; 12087 12088 if (!(io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)) { 12089 union ctl_ha_msg msg_info; 12090 12091 msg_info.hdr.nexus = io->io_hdr.nexus; 12092 msg_info.task.task_action = CTL_TASK_I_T_NEXUS_RESET; 12093 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 12094 msg_info.hdr.original_sc = NULL; 12095 msg_info.hdr.serializing_sc = NULL; 12096 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 12097 sizeof(msg_info.task), M_WAITOK); 12098 } 12099 12100 initidx = ctl_get_initindex(&io->io_hdr.nexus); 12101 mtx_lock(&softc->ctl_lock); 12102 STAILQ_FOREACH(lun, &softc->lun_list, links) { 12103 mtx_lock(&lun->lun_lock); 12104 ctl_abort_tasks_lun(lun, io->io_hdr.nexus.targ_port, 12105 io->io_hdr.nexus.initid, 1); 12106#ifdef CTL_WITH_CA 12107 ctl_clear_mask(lun->have_ca, initidx); 12108#endif 12109 if ((lun->flags & CTL_LUN_RESERVED) && (lun->res_idx == initidx)) 12110 lun->flags &= ~CTL_LUN_RESERVED; 12111 if (ctl_is_set(lun->prevent, initidx)) { 12112 ctl_clear_mask(lun->prevent, initidx); 12113 lun->prevent_count--; 12114 } 12115 ctl_est_ua(lun, initidx, CTL_UA_I_T_NEXUS_LOSS); 12116 mtx_unlock(&lun->lun_lock); 12117 } 12118 mtx_unlock(&softc->ctl_lock); 12119 io->taskio.task_status = CTL_TASK_FUNCTION_COMPLETE; 12120 return (0); 12121} 12122 12123static int 12124ctl_abort_task(union ctl_io *io) 12125{ 12126 union ctl_io *xio; 12127 struct ctl_lun *lun; 12128 struct ctl_softc *softc; 12129#if 0 12130 struct sbuf sb; 12131 char printbuf[128]; 12132#endif 12133 int found; 12134 uint32_t targ_lun; 12135 12136 softc = control_softc; 12137 found = 0; 12138 12139 /* 12140 * Look up the LUN. 12141 */ 12142 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12143 mtx_lock(&softc->ctl_lock); 12144 if ((targ_lun >= CTL_MAX_LUNS) || 12145 (lun = softc->ctl_luns[targ_lun]) == NULL) { 12146 mtx_unlock(&softc->ctl_lock); 12147 io->taskio.task_status = CTL_TASK_LUN_DOES_NOT_EXIST; 12148 return (1); 12149 } 12150 12151#if 0 12152 printf("ctl_abort_task: called for lun %lld, tag %d type %d\n", 12153 lun->lun, io->taskio.tag_num, io->taskio.tag_type); 12154#endif 12155 12156 mtx_lock(&lun->lun_lock); 12157 mtx_unlock(&softc->ctl_lock); 12158 /* 12159 * Run through the OOA queue and attempt to find the given I/O. 12160 * The target port, initiator ID, tag type and tag number have to 12161 * match the values that we got from the initiator. If we have an 12162 * untagged command to abort, simply abort the first untagged command 12163 * we come to. We only allow one untagged command at a time of course. 12164 */ 12165 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 12166 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 12167#if 0 12168 sbuf_new(&sb, printbuf, sizeof(printbuf), SBUF_FIXEDLEN); 12169 12170 sbuf_printf(&sb, "LUN %lld tag %d type %d%s%s%s%s: ", 12171 lun->lun, xio->scsiio.tag_num, 12172 xio->scsiio.tag_type, 12173 (xio->io_hdr.blocked_links.tqe_prev 12174 == NULL) ? "" : " BLOCKED", 12175 (xio->io_hdr.flags & 12176 CTL_FLAG_DMA_INPROG) ? " DMA" : "", 12177 (xio->io_hdr.flags & 12178 CTL_FLAG_ABORT) ? " ABORT" : "", 12179 (xio->io_hdr.flags & 12180 CTL_FLAG_IS_WAS_ON_RTR ? " RTR" : "")); 12181 ctl_scsi_command_string(&xio->scsiio, NULL, &sb); 12182 sbuf_finish(&sb); 12183 printf("%s\n", sbuf_data(&sb)); 12184#endif 12185 12186 if ((xio->io_hdr.nexus.targ_port != io->io_hdr.nexus.targ_port) 12187 || (xio->io_hdr.nexus.initid != io->io_hdr.nexus.initid) 12188 || (xio->io_hdr.flags & CTL_FLAG_ABORT)) 12189 continue; 12190 12191 /* 12192 * If the abort says that the task is untagged, the 12193 * task in the queue must be untagged. Otherwise, 12194 * we just check to see whether the tag numbers 12195 * match. This is because the QLogic firmware 12196 * doesn't pass back the tag type in an abort 12197 * request. 12198 */ 12199#if 0 12200 if (((xio->scsiio.tag_type == CTL_TAG_UNTAGGED) 12201 && (io->taskio.tag_type == CTL_TAG_UNTAGGED)) 12202 || (xio->scsiio.tag_num == io->taskio.tag_num)) 12203#endif 12204 /* 12205 * XXX KDM we've got problems with FC, because it 12206 * doesn't send down a tag type with aborts. So we 12207 * can only really go by the tag number... 12208 * This may cause problems with parallel SCSI. 12209 * Need to figure that out!! 12210 */ 12211 if (xio->scsiio.tag_num == io->taskio.tag_num) { 12212 xio->io_hdr.flags |= CTL_FLAG_ABORT; 12213 found = 1; 12214 if ((io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) == 0 && 12215 !(lun->flags & CTL_LUN_PRIMARY_SC)) { 12216 union ctl_ha_msg msg_info; 12217 12218 msg_info.hdr.nexus = io->io_hdr.nexus; 12219 msg_info.task.task_action = CTL_TASK_ABORT_TASK; 12220 msg_info.task.tag_num = io->taskio.tag_num; 12221 msg_info.task.tag_type = io->taskio.tag_type; 12222 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 12223 msg_info.hdr.original_sc = NULL; 12224 msg_info.hdr.serializing_sc = NULL; 12225#if 0 12226 printf("Sent Abort to other side\n"); 12227#endif 12228 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 12229 sizeof(msg_info.task), M_NOWAIT); 12230 } 12231#if 0 12232 printf("ctl_abort_task: found I/O to abort\n"); 12233#endif 12234 } 12235 } 12236 mtx_unlock(&lun->lun_lock); 12237 12238 if (found == 0) { 12239 /* 12240 * This isn't really an error. It's entirely possible for 12241 * the abort and command completion to cross on the wire. 12242 * This is more of an informative/diagnostic error. 12243 */ 12244#if 0 12245 printf("ctl_abort_task: ABORT sent for nonexistent I/O: " 12246 "%u:%u:%u tag %d type %d\n", 12247 io->io_hdr.nexus.initid, 12248 io->io_hdr.nexus.targ_port, 12249 io->io_hdr.nexus.targ_lun, io->taskio.tag_num, 12250 io->taskio.tag_type); 12251#endif 12252 } 12253 io->taskio.task_status = CTL_TASK_FUNCTION_COMPLETE; 12254 return (0); 12255} 12256 12257static int 12258ctl_query_task(union ctl_io *io, int task_set) 12259{ 12260 union ctl_io *xio; 12261 struct ctl_lun *lun; 12262 struct ctl_softc *softc; 12263 int found = 0; 12264 uint32_t targ_lun; 12265 12266 softc = control_softc; 12267 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12268 mtx_lock(&softc->ctl_lock); 12269 if ((targ_lun >= CTL_MAX_LUNS) || 12270 (lun = softc->ctl_luns[targ_lun]) == NULL) { 12271 mtx_unlock(&softc->ctl_lock); 12272 io->taskio.task_status = CTL_TASK_LUN_DOES_NOT_EXIST; 12273 return (1); 12274 } 12275 mtx_lock(&lun->lun_lock); 12276 mtx_unlock(&softc->ctl_lock); 12277 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 12278 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 12279 12280 if ((xio->io_hdr.nexus.targ_port != io->io_hdr.nexus.targ_port) 12281 || (xio->io_hdr.nexus.initid != io->io_hdr.nexus.initid) 12282 || (xio->io_hdr.flags & CTL_FLAG_ABORT)) 12283 continue; 12284 12285 if (task_set || xio->scsiio.tag_num == io->taskio.tag_num) { 12286 found = 1; 12287 break; 12288 } 12289 } 12290 mtx_unlock(&lun->lun_lock); 12291 if (found) 12292 io->taskio.task_status = CTL_TASK_FUNCTION_SUCCEEDED; 12293 else 12294 io->taskio.task_status = CTL_TASK_FUNCTION_COMPLETE; 12295 return (0); 12296} 12297 12298static int 12299ctl_query_async_event(union ctl_io *io) 12300{ 12301 struct ctl_lun *lun; 12302 struct ctl_softc *softc; 12303 ctl_ua_type ua; 12304 uint32_t targ_lun, initidx; 12305 12306 softc = control_softc; 12307 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12308 mtx_lock(&softc->ctl_lock); 12309 if ((targ_lun >= CTL_MAX_LUNS) || 12310 (lun = softc->ctl_luns[targ_lun]) == NULL) { 12311 mtx_unlock(&softc->ctl_lock); 12312 io->taskio.task_status = CTL_TASK_LUN_DOES_NOT_EXIST; 12313 return (1); 12314 } 12315 mtx_lock(&lun->lun_lock); 12316 mtx_unlock(&softc->ctl_lock); 12317 initidx = ctl_get_initindex(&io->io_hdr.nexus); 12318 ua = ctl_build_qae(lun, initidx, io->taskio.task_resp); 12319 mtx_unlock(&lun->lun_lock); 12320 if (ua != CTL_UA_NONE) 12321 io->taskio.task_status = CTL_TASK_FUNCTION_SUCCEEDED; 12322 else 12323 io->taskio.task_status = CTL_TASK_FUNCTION_COMPLETE; 12324 return (0); 12325} 12326 12327static void 12328ctl_run_task(union ctl_io *io) 12329{ 12330 struct ctl_softc *softc = control_softc; 12331 int retval = 1; 12332 12333 CTL_DEBUG_PRINT(("ctl_run_task\n")); 12334 KASSERT(io->io_hdr.io_type == CTL_IO_TASK, 12335 ("ctl_run_task: Unextected io_type %d\n", io->io_hdr.io_type)); 12336 io->taskio.task_status = CTL_TASK_FUNCTION_NOT_SUPPORTED; 12337 bzero(io->taskio.task_resp, sizeof(io->taskio.task_resp)); 12338 switch (io->taskio.task_action) { 12339 case CTL_TASK_ABORT_TASK: 12340 retval = ctl_abort_task(io); 12341 break; 12342 case CTL_TASK_ABORT_TASK_SET: 12343 case CTL_TASK_CLEAR_TASK_SET: 12344 retval = ctl_abort_task_set(io); 12345 break; 12346 case CTL_TASK_CLEAR_ACA: 12347 break; 12348 case CTL_TASK_I_T_NEXUS_RESET: 12349 retval = ctl_i_t_nexus_reset(io); 12350 break; 12351 case CTL_TASK_LUN_RESET: 12352 retval = ctl_lun_reset(softc, io); 12353 break; 12354 case CTL_TASK_TARGET_RESET: 12355 retval = ctl_target_reset(softc, io, CTL_UA_TARG_RESET); 12356 break; 12357 case CTL_TASK_BUS_RESET: 12358 retval = ctl_bus_reset(softc, io); 12359 break; 12360 case CTL_TASK_PORT_LOGIN: 12361 break; 12362 case CTL_TASK_PORT_LOGOUT: 12363 break; 12364 case CTL_TASK_QUERY_TASK: 12365 retval = ctl_query_task(io, 0); 12366 break; 12367 case CTL_TASK_QUERY_TASK_SET: 12368 retval = ctl_query_task(io, 1); 12369 break; 12370 case CTL_TASK_QUERY_ASYNC_EVENT: 12371 retval = ctl_query_async_event(io); 12372 break; 12373 default: 12374 printf("%s: got unknown task management event %d\n", 12375 __func__, io->taskio.task_action); 12376 break; 12377 } 12378 if (retval == 0) 12379 io->io_hdr.status = CTL_SUCCESS; 12380 else 12381 io->io_hdr.status = CTL_ERROR; 12382 ctl_done(io); 12383} 12384 12385/* 12386 * For HA operation. Handle commands that come in from the other 12387 * controller. 12388 */ 12389static void 12390ctl_handle_isc(union ctl_io *io) 12391{ 12392 int free_io; 12393 struct ctl_lun *lun; 12394 struct ctl_softc *softc = control_softc; 12395 uint32_t targ_lun; 12396 12397 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12398 lun = softc->ctl_luns[targ_lun]; 12399 12400 switch (io->io_hdr.msg_type) { 12401 case CTL_MSG_SERIALIZE: 12402 free_io = ctl_serialize_other_sc_cmd(&io->scsiio); 12403 break; 12404 case CTL_MSG_R2R: { 12405 const struct ctl_cmd_entry *entry; 12406 12407 /* 12408 * This is only used in SER_ONLY mode. 12409 */ 12410 free_io = 0; 12411 entry = ctl_get_cmd_entry(&io->scsiio, NULL); 12412 mtx_lock(&lun->lun_lock); 12413 if (ctl_scsiio_lun_check(lun, 12414 entry, (struct ctl_scsiio *)io) != 0) { 12415 mtx_unlock(&lun->lun_lock); 12416 ctl_done(io); 12417 break; 12418 } 12419 io->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 12420 mtx_unlock(&lun->lun_lock); 12421 ctl_enqueue_rtr(io); 12422 break; 12423 } 12424 case CTL_MSG_FINISH_IO: 12425 if (softc->ha_mode == CTL_HA_MODE_XFER) { 12426 free_io = 0; 12427 ctl_done(io); 12428 } else { 12429 free_io = 1; 12430 mtx_lock(&lun->lun_lock); 12431 TAILQ_REMOVE(&lun->ooa_queue, &io->io_hdr, 12432 ooa_links); 12433 ctl_check_blocked(lun); 12434 mtx_unlock(&lun->lun_lock); 12435 } 12436 break; 12437 case CTL_MSG_PERS_ACTION: 12438 ctl_hndl_per_res_out_on_other_sc( 12439 (union ctl_ha_msg *)&io->presio.pr_msg); 12440 free_io = 1; 12441 break; 12442 case CTL_MSG_BAD_JUJU: 12443 free_io = 0; 12444 ctl_done(io); 12445 break; 12446 case CTL_MSG_DATAMOVE: 12447 /* Only used in XFER mode */ 12448 free_io = 0; 12449 ctl_datamove_remote(io); 12450 break; 12451 case CTL_MSG_DATAMOVE_DONE: 12452 /* Only used in XFER mode */ 12453 free_io = 0; 12454 io->scsiio.be_move_done(io); 12455 break; 12456 case CTL_MSG_FAILOVER: 12457 ctl_failover_lun(io); 12458 free_io = 1; 12459 break; 12460 default: 12461 free_io = 1; 12462 printf("%s: Invalid message type %d\n", 12463 __func__, io->io_hdr.msg_type); 12464 break; 12465 } 12466 if (free_io) 12467 ctl_free_io(io); 12468 12469} 12470 12471 12472/* 12473 * Returns the match type in the case of a match, or CTL_LUN_PAT_NONE if 12474 * there is no match. 12475 */ 12476static ctl_lun_error_pattern 12477ctl_cmd_pattern_match(struct ctl_scsiio *ctsio, struct ctl_error_desc *desc) 12478{ 12479 const struct ctl_cmd_entry *entry; 12480 ctl_lun_error_pattern filtered_pattern, pattern; 12481 12482 pattern = desc->error_pattern; 12483 12484 /* 12485 * XXX KDM we need more data passed into this function to match a 12486 * custom pattern, and we actually need to implement custom pattern 12487 * matching. 12488 */ 12489 if (pattern & CTL_LUN_PAT_CMD) 12490 return (CTL_LUN_PAT_CMD); 12491 12492 if ((pattern & CTL_LUN_PAT_MASK) == CTL_LUN_PAT_ANY) 12493 return (CTL_LUN_PAT_ANY); 12494 12495 entry = ctl_get_cmd_entry(ctsio, NULL); 12496 12497 filtered_pattern = entry->pattern & pattern; 12498 12499 /* 12500 * If the user requested specific flags in the pattern (e.g. 12501 * CTL_LUN_PAT_RANGE), make sure the command supports all of those 12502 * flags. 12503 * 12504 * If the user did not specify any flags, it doesn't matter whether 12505 * or not the command supports the flags. 12506 */ 12507 if ((filtered_pattern & ~CTL_LUN_PAT_MASK) != 12508 (pattern & ~CTL_LUN_PAT_MASK)) 12509 return (CTL_LUN_PAT_NONE); 12510 12511 /* 12512 * If the user asked for a range check, see if the requested LBA 12513 * range overlaps with this command's LBA range. 12514 */ 12515 if (filtered_pattern & CTL_LUN_PAT_RANGE) { 12516 uint64_t lba1; 12517 uint64_t len1; 12518 ctl_action action; 12519 int retval; 12520 12521 retval = ctl_get_lba_len((union ctl_io *)ctsio, &lba1, &len1); 12522 if (retval != 0) 12523 return (CTL_LUN_PAT_NONE); 12524 12525 action = ctl_extent_check_lba(lba1, len1, desc->lba_range.lba, 12526 desc->lba_range.len, FALSE); 12527 /* 12528 * A "pass" means that the LBA ranges don't overlap, so 12529 * this doesn't match the user's range criteria. 12530 */ 12531 if (action == CTL_ACTION_PASS) 12532 return (CTL_LUN_PAT_NONE); 12533 } 12534 12535 return (filtered_pattern); 12536} 12537 12538static void 12539ctl_inject_error(struct ctl_lun *lun, union ctl_io *io) 12540{ 12541 struct ctl_error_desc *desc, *desc2; 12542 12543 mtx_assert(&lun->lun_lock, MA_OWNED); 12544 12545 STAILQ_FOREACH_SAFE(desc, &lun->error_list, links, desc2) { 12546 ctl_lun_error_pattern pattern; 12547 /* 12548 * Check to see whether this particular command matches 12549 * the pattern in the descriptor. 12550 */ 12551 pattern = ctl_cmd_pattern_match(&io->scsiio, desc); 12552 if ((pattern & CTL_LUN_PAT_MASK) == CTL_LUN_PAT_NONE) 12553 continue; 12554 12555 switch (desc->lun_error & CTL_LUN_INJ_TYPE) { 12556 case CTL_LUN_INJ_ABORTED: 12557 ctl_set_aborted(&io->scsiio); 12558 break; 12559 case CTL_LUN_INJ_MEDIUM_ERR: 12560 ctl_set_medium_error(&io->scsiio, 12561 (io->io_hdr.flags & CTL_FLAG_DATA_MASK) != 12562 CTL_FLAG_DATA_OUT); 12563 break; 12564 case CTL_LUN_INJ_UA: 12565 /* 29h/00h POWER ON, RESET, OR BUS DEVICE RESET 12566 * OCCURRED */ 12567 ctl_set_ua(&io->scsiio, 0x29, 0x00); 12568 break; 12569 case CTL_LUN_INJ_CUSTOM: 12570 /* 12571 * We're assuming the user knows what he is doing. 12572 * Just copy the sense information without doing 12573 * checks. 12574 */ 12575 bcopy(&desc->custom_sense, &io->scsiio.sense_data, 12576 MIN(sizeof(desc->custom_sense), 12577 sizeof(io->scsiio.sense_data))); 12578 io->scsiio.scsi_status = SCSI_STATUS_CHECK_COND; 12579 io->scsiio.sense_len = SSD_FULL_SIZE; 12580 io->io_hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 12581 break; 12582 case CTL_LUN_INJ_NONE: 12583 default: 12584 /* 12585 * If this is an error injection type we don't know 12586 * about, clear the continuous flag (if it is set) 12587 * so it will get deleted below. 12588 */ 12589 desc->lun_error &= ~CTL_LUN_INJ_CONTINUOUS; 12590 break; 12591 } 12592 /* 12593 * By default, each error injection action is a one-shot 12594 */ 12595 if (desc->lun_error & CTL_LUN_INJ_CONTINUOUS) 12596 continue; 12597 12598 STAILQ_REMOVE(&lun->error_list, desc, ctl_error_desc, links); 12599 12600 free(desc, M_CTL); 12601 } 12602} 12603 12604#ifdef CTL_IO_DELAY 12605static void 12606ctl_datamove_timer_wakeup(void *arg) 12607{ 12608 union ctl_io *io; 12609 12610 io = (union ctl_io *)arg; 12611 12612 ctl_datamove(io); 12613} 12614#endif /* CTL_IO_DELAY */ 12615 12616void 12617ctl_datamove(union ctl_io *io) 12618{ 12619 struct ctl_lun *lun; 12620 void (*fe_datamove)(union ctl_io *io); 12621 12622 mtx_assert(&control_softc->ctl_lock, MA_NOTOWNED); 12623 12624 CTL_DEBUG_PRINT(("ctl_datamove\n")); 12625 12626 lun = (struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 12627#ifdef CTL_TIME_IO 12628 if ((time_uptime - io->io_hdr.start_time) > ctl_time_io_secs) { 12629 char str[256]; 12630 char path_str[64]; 12631 struct sbuf sb; 12632 12633 ctl_scsi_path_string(io, path_str, sizeof(path_str)); 12634 sbuf_new(&sb, str, sizeof(str), SBUF_FIXEDLEN); 12635 12636 sbuf_cat(&sb, path_str); 12637 switch (io->io_hdr.io_type) { 12638 case CTL_IO_SCSI: 12639 ctl_scsi_command_string(&io->scsiio, NULL, &sb); 12640 sbuf_printf(&sb, "\n"); 12641 sbuf_cat(&sb, path_str); 12642 sbuf_printf(&sb, "Tag: 0x%04x, type %d\n", 12643 io->scsiio.tag_num, io->scsiio.tag_type); 12644 break; 12645 case CTL_IO_TASK: 12646 sbuf_printf(&sb, "Task I/O type: %d, Tag: 0x%04x, " 12647 "Tag Type: %d\n", io->taskio.task_action, 12648 io->taskio.tag_num, io->taskio.tag_type); 12649 break; 12650 default: 12651 panic("%s: Invalid CTL I/O type %d\n", 12652 __func__, io->io_hdr.io_type); 12653 } 12654 sbuf_cat(&sb, path_str); 12655 sbuf_printf(&sb, "ctl_datamove: %jd seconds\n", 12656 (intmax_t)time_uptime - io->io_hdr.start_time); 12657 sbuf_finish(&sb); 12658 printf("%s", sbuf_data(&sb)); 12659 } 12660#endif /* CTL_TIME_IO */ 12661 12662#ifdef CTL_IO_DELAY 12663 if (io->io_hdr.flags & CTL_FLAG_DELAY_DONE) { 12664 io->io_hdr.flags &= ~CTL_FLAG_DELAY_DONE; 12665 } else { 12666 if ((lun != NULL) 12667 && (lun->delay_info.datamove_delay > 0)) { 12668 12669 callout_init(&io->io_hdr.delay_callout, /*mpsafe*/ 1); 12670 io->io_hdr.flags |= CTL_FLAG_DELAY_DONE; 12671 callout_reset(&io->io_hdr.delay_callout, 12672 lun->delay_info.datamove_delay * hz, 12673 ctl_datamove_timer_wakeup, io); 12674 if (lun->delay_info.datamove_type == 12675 CTL_DELAY_TYPE_ONESHOT) 12676 lun->delay_info.datamove_delay = 0; 12677 return; 12678 } 12679 } 12680#endif 12681 12682 /* 12683 * This command has been aborted. Set the port status, so we fail 12684 * the data move. 12685 */ 12686 if (io->io_hdr.flags & CTL_FLAG_ABORT) { 12687 printf("ctl_datamove: tag 0x%04x on (%u:%u:%u) aborted\n", 12688 io->scsiio.tag_num, io->io_hdr.nexus.initid, 12689 io->io_hdr.nexus.targ_port, 12690 io->io_hdr.nexus.targ_lun); 12691 io->io_hdr.port_status = 31337; 12692 /* 12693 * Note that the backend, in this case, will get the 12694 * callback in its context. In other cases it may get 12695 * called in the frontend's interrupt thread context. 12696 */ 12697 io->scsiio.be_move_done(io); 12698 return; 12699 } 12700 12701 /* Don't confuse frontend with zero length data move. */ 12702 if (io->scsiio.kern_data_len == 0) { 12703 io->scsiio.be_move_done(io); 12704 return; 12705 } 12706 12707 fe_datamove = ctl_io_port(&io->io_hdr)->fe_datamove; 12708 fe_datamove(io); 12709} 12710 12711static void 12712ctl_send_datamove_done(union ctl_io *io, int have_lock) 12713{ 12714 union ctl_ha_msg msg; 12715#ifdef CTL_TIME_IO 12716 struct bintime cur_bt; 12717#endif 12718 12719 memset(&msg, 0, sizeof(msg)); 12720 msg.hdr.msg_type = CTL_MSG_DATAMOVE_DONE; 12721 msg.hdr.original_sc = io; 12722 msg.hdr.serializing_sc = io->io_hdr.serializing_sc; 12723 msg.hdr.nexus = io->io_hdr.nexus; 12724 msg.hdr.status = io->io_hdr.status; 12725 msg.scsi.tag_num = io->scsiio.tag_num; 12726 msg.scsi.tag_type = io->scsiio.tag_type; 12727 msg.scsi.scsi_status = io->scsiio.scsi_status; 12728 memcpy(&msg.scsi.sense_data, &io->scsiio.sense_data, 12729 io->scsiio.sense_len); 12730 msg.scsi.sense_len = io->scsiio.sense_len; 12731 msg.scsi.sense_residual = io->scsiio.sense_residual; 12732 msg.scsi.fetd_status = io->io_hdr.port_status; 12733 msg.scsi.residual = io->scsiio.residual; 12734 io->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 12735 if (io->io_hdr.flags & CTL_FLAG_FAILOVER) { 12736 ctl_failover_io(io, /*have_lock*/ have_lock); 12737 return; 12738 } 12739 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, 12740 sizeof(msg.scsi) - sizeof(msg.scsi.sense_data) + 12741 msg.scsi.sense_len, M_WAITOK); 12742 12743#ifdef CTL_TIME_IO 12744 getbinuptime(&cur_bt); 12745 bintime_sub(&cur_bt, &io->io_hdr.dma_start_bt); 12746 bintime_add(&io->io_hdr.dma_bt, &cur_bt); 12747#endif 12748 io->io_hdr.num_dmas++; 12749} 12750 12751/* 12752 * The DMA to the remote side is done, now we need to tell the other side 12753 * we're done so it can continue with its data movement. 12754 */ 12755static void 12756ctl_datamove_remote_write_cb(struct ctl_ha_dt_req *rq) 12757{ 12758 union ctl_io *io; 12759 uint32_t i; 12760 12761 io = rq->context; 12762 12763 if (rq->ret != CTL_HA_STATUS_SUCCESS) { 12764 printf("%s: ISC DMA write failed with error %d", __func__, 12765 rq->ret); 12766 ctl_set_internal_failure(&io->scsiio, 12767 /*sks_valid*/ 1, 12768 /*retry_count*/ rq->ret); 12769 } 12770 12771 ctl_dt_req_free(rq); 12772 12773 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 12774 free(io->io_hdr.local_sglist[i].addr, M_CTL); 12775 free(io->io_hdr.remote_sglist, M_CTL); 12776 io->io_hdr.remote_sglist = NULL; 12777 io->io_hdr.local_sglist = NULL; 12778 12779 /* 12780 * The data is in local and remote memory, so now we need to send 12781 * status (good or back) back to the other side. 12782 */ 12783 ctl_send_datamove_done(io, /*have_lock*/ 0); 12784} 12785 12786/* 12787 * We've moved the data from the host/controller into local memory. Now we 12788 * need to push it over to the remote controller's memory. 12789 */ 12790static int 12791ctl_datamove_remote_dm_write_cb(union ctl_io *io) 12792{ 12793 int retval; 12794 12795 retval = ctl_datamove_remote_xfer(io, CTL_HA_DT_CMD_WRITE, 12796 ctl_datamove_remote_write_cb); 12797 return (retval); 12798} 12799 12800static void 12801ctl_datamove_remote_write(union ctl_io *io) 12802{ 12803 int retval; 12804 void (*fe_datamove)(union ctl_io *io); 12805 12806 /* 12807 * - Get the data from the host/HBA into local memory. 12808 * - DMA memory from the local controller to the remote controller. 12809 * - Send status back to the remote controller. 12810 */ 12811 12812 retval = ctl_datamove_remote_sgl_setup(io); 12813 if (retval != 0) 12814 return; 12815 12816 /* Switch the pointer over so the FETD knows what to do */ 12817 io->scsiio.kern_data_ptr = (uint8_t *)io->io_hdr.local_sglist; 12818 12819 /* 12820 * Use a custom move done callback, since we need to send completion 12821 * back to the other controller, not to the backend on this side. 12822 */ 12823 io->scsiio.be_move_done = ctl_datamove_remote_dm_write_cb; 12824 12825 fe_datamove = ctl_io_port(&io->io_hdr)->fe_datamove; 12826 fe_datamove(io); 12827} 12828 12829static int 12830ctl_datamove_remote_dm_read_cb(union ctl_io *io) 12831{ 12832#if 0 12833 char str[256]; 12834 char path_str[64]; 12835 struct sbuf sb; 12836#endif 12837 uint32_t i; 12838 12839 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 12840 free(io->io_hdr.local_sglist[i].addr, M_CTL); 12841 free(io->io_hdr.remote_sglist, M_CTL); 12842 io->io_hdr.remote_sglist = NULL; 12843 io->io_hdr.local_sglist = NULL; 12844 12845#if 0 12846 scsi_path_string(io, path_str, sizeof(path_str)); 12847 sbuf_new(&sb, str, sizeof(str), SBUF_FIXEDLEN); 12848 sbuf_cat(&sb, path_str); 12849 scsi_command_string(&io->scsiio, NULL, &sb); 12850 sbuf_printf(&sb, "\n"); 12851 sbuf_cat(&sb, path_str); 12852 sbuf_printf(&sb, "Tag: 0x%04x, type %d\n", 12853 io->scsiio.tag_num, io->scsiio.tag_type); 12854 sbuf_cat(&sb, path_str); 12855 sbuf_printf(&sb, "%s: flags %#x, status %#x\n", __func__, 12856 io->io_hdr.flags, io->io_hdr.status); 12857 sbuf_finish(&sb); 12858 printk("%s", sbuf_data(&sb)); 12859#endif 12860 12861 12862 /* 12863 * The read is done, now we need to send status (good or bad) back 12864 * to the other side. 12865 */ 12866 ctl_send_datamove_done(io, /*have_lock*/ 0); 12867 12868 return (0); 12869} 12870 12871static void 12872ctl_datamove_remote_read_cb(struct ctl_ha_dt_req *rq) 12873{ 12874 union ctl_io *io; 12875 void (*fe_datamove)(union ctl_io *io); 12876 12877 io = rq->context; 12878 12879 if (rq->ret != CTL_HA_STATUS_SUCCESS) { 12880 printf("%s: ISC DMA read failed with error %d\n", __func__, 12881 rq->ret); 12882 ctl_set_internal_failure(&io->scsiio, 12883 /*sks_valid*/ 1, 12884 /*retry_count*/ rq->ret); 12885 } 12886 12887 ctl_dt_req_free(rq); 12888 12889 /* Switch the pointer over so the FETD knows what to do */ 12890 io->scsiio.kern_data_ptr = (uint8_t *)io->io_hdr.local_sglist; 12891 12892 /* 12893 * Use a custom move done callback, since we need to send completion 12894 * back to the other controller, not to the backend on this side. 12895 */ 12896 io->scsiio.be_move_done = ctl_datamove_remote_dm_read_cb; 12897 12898 /* XXX KDM add checks like the ones in ctl_datamove? */ 12899 12900 fe_datamove = ctl_io_port(&io->io_hdr)->fe_datamove; 12901 fe_datamove(io); 12902} 12903 12904static int 12905ctl_datamove_remote_sgl_setup(union ctl_io *io) 12906{ 12907 struct ctl_sg_entry *local_sglist; 12908 uint32_t len_to_go; 12909 int retval; 12910 int i; 12911 12912 retval = 0; 12913 local_sglist = io->io_hdr.local_sglist; 12914 len_to_go = io->scsiio.kern_data_len; 12915 12916 /* 12917 * The difficult thing here is that the size of the various 12918 * S/G segments may be different than the size from the 12919 * remote controller. That'll make it harder when DMAing 12920 * the data back to the other side. 12921 */ 12922 for (i = 0; len_to_go > 0; i++) { 12923 local_sglist[i].len = MIN(len_to_go, CTL_HA_DATAMOVE_SEGMENT); 12924 local_sglist[i].addr = 12925 malloc(local_sglist[i].len, M_CTL, M_WAITOK); 12926 12927 len_to_go -= local_sglist[i].len; 12928 } 12929 /* 12930 * Reset the number of S/G entries accordingly. The original 12931 * number of S/G entries is available in rem_sg_entries. 12932 */ 12933 io->scsiio.kern_sg_entries = i; 12934 12935#if 0 12936 printf("%s: kern_sg_entries = %d\n", __func__, 12937 io->scsiio.kern_sg_entries); 12938 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 12939 printf("%s: sg[%d] = %p, %lu\n", __func__, i, 12940 local_sglist[i].addr, local_sglist[i].len); 12941#endif 12942 12943 return (retval); 12944} 12945 12946static int 12947ctl_datamove_remote_xfer(union ctl_io *io, unsigned command, 12948 ctl_ha_dt_cb callback) 12949{ 12950 struct ctl_ha_dt_req *rq; 12951 struct ctl_sg_entry *remote_sglist, *local_sglist; 12952 uint32_t local_used, remote_used, total_used; 12953 int i, j, isc_ret; 12954 12955 rq = ctl_dt_req_alloc(); 12956 12957 /* 12958 * If we failed to allocate the request, and if the DMA didn't fail 12959 * anyway, set busy status. This is just a resource allocation 12960 * failure. 12961 */ 12962 if ((rq == NULL) 12963 && ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE && 12964 (io->io_hdr.status & CTL_STATUS_MASK) != CTL_SUCCESS)) 12965 ctl_set_busy(&io->scsiio); 12966 12967 if ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE && 12968 (io->io_hdr.status & CTL_STATUS_MASK) != CTL_SUCCESS) { 12969 12970 if (rq != NULL) 12971 ctl_dt_req_free(rq); 12972 12973 /* 12974 * The data move failed. We need to return status back 12975 * to the other controller. No point in trying to DMA 12976 * data to the remote controller. 12977 */ 12978 12979 ctl_send_datamove_done(io, /*have_lock*/ 0); 12980 12981 return (1); 12982 } 12983 12984 local_sglist = io->io_hdr.local_sglist; 12985 remote_sglist = io->io_hdr.remote_sglist; 12986 local_used = 0; 12987 remote_used = 0; 12988 total_used = 0; 12989 12990 /* 12991 * Pull/push the data over the wire from/to the other controller. 12992 * This takes into account the possibility that the local and 12993 * remote sglists may not be identical in terms of the size of 12994 * the elements and the number of elements. 12995 * 12996 * One fundamental assumption here is that the length allocated for 12997 * both the local and remote sglists is identical. Otherwise, we've 12998 * essentially got a coding error of some sort. 12999 */ 13000 isc_ret = CTL_HA_STATUS_SUCCESS; 13001 for (i = 0, j = 0; total_used < io->scsiio.kern_data_len; ) { 13002 uint32_t cur_len; 13003 uint8_t *tmp_ptr; 13004 13005 rq->command = command; 13006 rq->context = io; 13007 13008 /* 13009 * Both pointers should be aligned. But it is possible 13010 * that the allocation length is not. They should both 13011 * also have enough slack left over at the end, though, 13012 * to round up to the next 8 byte boundary. 13013 */ 13014 cur_len = MIN(local_sglist[i].len - local_used, 13015 remote_sglist[j].len - remote_used); 13016 rq->size = cur_len; 13017 13018 tmp_ptr = (uint8_t *)local_sglist[i].addr; 13019 tmp_ptr += local_used; 13020 13021#if 0 13022 /* Use physical addresses when talking to ISC hardware */ 13023 if ((io->io_hdr.flags & CTL_FLAG_BUS_ADDR) == 0) { 13024 /* XXX KDM use busdma */ 13025 rq->local = vtophys(tmp_ptr); 13026 } else 13027 rq->local = tmp_ptr; 13028#else 13029 KASSERT((io->io_hdr.flags & CTL_FLAG_BUS_ADDR) == 0, 13030 ("HA does not support BUS_ADDR")); 13031 rq->local = tmp_ptr; 13032#endif 13033 13034 tmp_ptr = (uint8_t *)remote_sglist[j].addr; 13035 tmp_ptr += remote_used; 13036 rq->remote = tmp_ptr; 13037 13038 rq->callback = NULL; 13039 13040 local_used += cur_len; 13041 if (local_used >= local_sglist[i].len) { 13042 i++; 13043 local_used = 0; 13044 } 13045 13046 remote_used += cur_len; 13047 if (remote_used >= remote_sglist[j].len) { 13048 j++; 13049 remote_used = 0; 13050 } 13051 total_used += cur_len; 13052 13053 if (total_used >= io->scsiio.kern_data_len) 13054 rq->callback = callback; 13055 13056#if 0 13057 printf("%s: %s: local %p remote %p size %d\n", __func__, 13058 (command == CTL_HA_DT_CMD_WRITE) ? "WRITE" : "READ", 13059 rq->local, rq->remote, rq->size); 13060#endif 13061 13062 isc_ret = ctl_dt_single(rq); 13063 if (isc_ret > CTL_HA_STATUS_SUCCESS) 13064 break; 13065 } 13066 if (isc_ret != CTL_HA_STATUS_WAIT) { 13067 rq->ret = isc_ret; 13068 callback(rq); 13069 } 13070 13071 return (0); 13072} 13073 13074static void 13075ctl_datamove_remote_read(union ctl_io *io) 13076{ 13077 int retval; 13078 uint32_t i; 13079 13080 /* 13081 * This will send an error to the other controller in the case of a 13082 * failure. 13083 */ 13084 retval = ctl_datamove_remote_sgl_setup(io); 13085 if (retval != 0) 13086 return; 13087 13088 retval = ctl_datamove_remote_xfer(io, CTL_HA_DT_CMD_READ, 13089 ctl_datamove_remote_read_cb); 13090 if (retval != 0) { 13091 /* 13092 * Make sure we free memory if there was an error.. The 13093 * ctl_datamove_remote_xfer() function will send the 13094 * datamove done message, or call the callback with an 13095 * error if there is a problem. 13096 */ 13097 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 13098 free(io->io_hdr.local_sglist[i].addr, M_CTL); 13099 free(io->io_hdr.remote_sglist, M_CTL); 13100 io->io_hdr.remote_sglist = NULL; 13101 io->io_hdr.local_sglist = NULL; 13102 } 13103} 13104 13105/* 13106 * Process a datamove request from the other controller. This is used for 13107 * XFER mode only, not SER_ONLY mode. For writes, we DMA into local memory 13108 * first. Once that is complete, the data gets DMAed into the remote 13109 * controller's memory. For reads, we DMA from the remote controller's 13110 * memory into our memory first, and then move it out to the FETD. 13111 */ 13112static void 13113ctl_datamove_remote(union ctl_io *io) 13114{ 13115 13116 mtx_assert(&control_softc->ctl_lock, MA_NOTOWNED); 13117 13118 if (io->io_hdr.flags & CTL_FLAG_FAILOVER) { 13119 ctl_failover_io(io, /*have_lock*/ 0); 13120 return; 13121 } 13122 13123 /* 13124 * Note that we look for an aborted I/O here, but don't do some of 13125 * the other checks that ctl_datamove() normally does. 13126 * We don't need to run the datamove delay code, since that should 13127 * have been done if need be on the other controller. 13128 */ 13129 if (io->io_hdr.flags & CTL_FLAG_ABORT) { 13130 printf("%s: tag 0x%04x on (%u:%u:%u) aborted\n", __func__, 13131 io->scsiio.tag_num, io->io_hdr.nexus.initid, 13132 io->io_hdr.nexus.targ_port, 13133 io->io_hdr.nexus.targ_lun); 13134 io->io_hdr.port_status = 31338; 13135 ctl_send_datamove_done(io, /*have_lock*/ 0); 13136 return; 13137 } 13138 13139 if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_OUT) 13140 ctl_datamove_remote_write(io); 13141 else if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_IN) 13142 ctl_datamove_remote_read(io); 13143 else { 13144 io->io_hdr.port_status = 31339; 13145 ctl_send_datamove_done(io, /*have_lock*/ 0); 13146 } 13147} 13148 13149static void 13150ctl_process_done(union ctl_io *io) 13151{ 13152 struct ctl_lun *lun; 13153 struct ctl_softc *softc = control_softc; 13154 void (*fe_done)(union ctl_io *io); 13155 union ctl_ha_msg msg; 13156 uint32_t targ_port = io->io_hdr.nexus.targ_port; 13157 13158 CTL_DEBUG_PRINT(("ctl_process_done\n")); 13159 fe_done = softc->ctl_ports[targ_port]->fe_done; 13160 13161#ifdef CTL_TIME_IO 13162 if ((time_uptime - io->io_hdr.start_time) > ctl_time_io_secs) { 13163 char str[256]; 13164 char path_str[64]; 13165 struct sbuf sb; 13166 13167 ctl_scsi_path_string(io, path_str, sizeof(path_str)); 13168 sbuf_new(&sb, str, sizeof(str), SBUF_FIXEDLEN); 13169 13170 sbuf_cat(&sb, path_str); 13171 switch (io->io_hdr.io_type) { 13172 case CTL_IO_SCSI: 13173 ctl_scsi_command_string(&io->scsiio, NULL, &sb); 13174 sbuf_printf(&sb, "\n"); 13175 sbuf_cat(&sb, path_str); 13176 sbuf_printf(&sb, "Tag: 0x%04x, type %d\n", 13177 io->scsiio.tag_num, io->scsiio.tag_type); 13178 break; 13179 case CTL_IO_TASK: 13180 sbuf_printf(&sb, "Task I/O type: %d, Tag: 0x%04x, " 13181 "Tag Type: %d\n", io->taskio.task_action, 13182 io->taskio.tag_num, io->taskio.tag_type); 13183 break; 13184 default: 13185 panic("%s: Invalid CTL I/O type %d\n", 13186 __func__, io->io_hdr.io_type); 13187 } 13188 sbuf_cat(&sb, path_str); 13189 sbuf_printf(&sb, "ctl_process_done: %jd seconds\n", 13190 (intmax_t)time_uptime - io->io_hdr.start_time); 13191 sbuf_finish(&sb); 13192 printf("%s", sbuf_data(&sb)); 13193 } 13194#endif /* CTL_TIME_IO */ 13195 13196 switch (io->io_hdr.io_type) { 13197 case CTL_IO_SCSI: 13198 break; 13199 case CTL_IO_TASK: 13200 if (ctl_debug & CTL_DEBUG_INFO) 13201 ctl_io_error_print(io, NULL); 13202 fe_done(io); 13203 return; 13204 default: 13205 panic("%s: Invalid CTL I/O type %d\n", 13206 __func__, io->io_hdr.io_type); 13207 } 13208 13209 lun = (struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 13210 if (lun == NULL) { 13211 CTL_DEBUG_PRINT(("NULL LUN for lun %d\n", 13212 io->io_hdr.nexus.targ_mapped_lun)); 13213 goto bailout; 13214 } 13215 13216 mtx_lock(&lun->lun_lock); 13217 13218 /* 13219 * Check to see if we have any informational exception and status 13220 * of this command can be modified to report it in form of either 13221 * RECOVERED ERROR or NO SENSE, depending on MRIE mode page field. 13222 */ 13223 if (lun->ie_reported == 0 && lun->ie_asc != 0 && 13224 io->io_hdr.status == CTL_SUCCESS && 13225 (io->io_hdr.flags & CTL_FLAG_STATUS_SENT) == 0) { 13226 uint8_t mrie = lun->mode_pages.ie_page[CTL_PAGE_CURRENT].mrie; 13227 uint8_t per = 13228 ((lun->mode_pages.rw_er_page[CTL_PAGE_CURRENT].byte3 & 13229 SMS_RWER_PER) || 13230 (lun->mode_pages.verify_er_page[CTL_PAGE_CURRENT].byte3 & 13231 SMS_VER_PER)); 13232 if (((mrie == SIEP_MRIE_REC_COND && per) || 13233 mrie == SIEP_MRIE_REC_UNCOND || 13234 mrie == SIEP_MRIE_NO_SENSE) && 13235 (ctl_get_cmd_entry(&io->scsiio, NULL)->flags & 13236 CTL_CMD_FLAG_NO_SENSE) == 0) { 13237 ctl_set_sense(&io->scsiio, 13238 /*current_error*/ 1, 13239 /*sense_key*/ (mrie == SIEP_MRIE_NO_SENSE) ? 13240 SSD_KEY_NO_SENSE : SSD_KEY_RECOVERED_ERROR, 13241 /*asc*/ lun->ie_asc, 13242 /*ascq*/ lun->ie_ascq, 13243 SSD_ELEM_NONE); 13244 lun->ie_reported = 1; 13245 } 13246 } else if (lun->ie_reported < 0) 13247 lun->ie_reported = 0; 13248 13249 /* 13250 * Check to see if we have any errors to inject here. We only 13251 * inject errors for commands that don't already have errors set. 13252 */ 13253 if (!STAILQ_EMPTY(&lun->error_list) && 13254 ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS) && 13255 ((io->io_hdr.flags & CTL_FLAG_STATUS_SENT) == 0)) 13256 ctl_inject_error(lun, io); 13257 13258 /* 13259 * XXX KDM how do we treat commands that aren't completed 13260 * successfully? 13261 * 13262 * XXX KDM should we also track I/O latency? 13263 */ 13264 if ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS && 13265 io->io_hdr.io_type == CTL_IO_SCSI) { 13266#ifdef CTL_TIME_IO 13267 struct bintime cur_bt; 13268#endif 13269 int type; 13270 13271 if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == 13272 CTL_FLAG_DATA_IN) 13273 type = CTL_STATS_READ; 13274 else if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == 13275 CTL_FLAG_DATA_OUT) 13276 type = CTL_STATS_WRITE; 13277 else 13278 type = CTL_STATS_NO_IO; 13279 13280 lun->stats.ports[targ_port].bytes[type] += 13281 io->scsiio.kern_total_len; 13282 lun->stats.ports[targ_port].operations[type]++; 13283#ifdef CTL_TIME_IO 13284 bintime_add(&lun->stats.ports[targ_port].dma_time[type], 13285 &io->io_hdr.dma_bt); 13286 getbinuptime(&cur_bt); 13287 bintime_sub(&cur_bt, &io->io_hdr.start_bt); 13288 bintime_add(&lun->stats.ports[targ_port].time[type], &cur_bt); 13289#endif 13290 lun->stats.ports[targ_port].num_dmas[type] += 13291 io->io_hdr.num_dmas; 13292 } 13293 13294 /* 13295 * Remove this from the OOA queue. 13296 */ 13297 TAILQ_REMOVE(&lun->ooa_queue, &io->io_hdr, ooa_links); 13298#ifdef CTL_TIME_IO 13299 if (TAILQ_EMPTY(&lun->ooa_queue)) 13300 lun->last_busy = getsbinuptime(); 13301#endif 13302 13303 /* 13304 * Run through the blocked queue on this LUN and see if anything 13305 * has become unblocked, now that this transaction is done. 13306 */ 13307 ctl_check_blocked(lun); 13308 13309 /* 13310 * If the LUN has been invalidated, free it if there is nothing 13311 * left on its OOA queue. 13312 */ 13313 if ((lun->flags & CTL_LUN_INVALID) 13314 && TAILQ_EMPTY(&lun->ooa_queue)) { 13315 mtx_unlock(&lun->lun_lock); 13316 mtx_lock(&softc->ctl_lock); 13317 ctl_free_lun(lun); 13318 mtx_unlock(&softc->ctl_lock); 13319 } else 13320 mtx_unlock(&lun->lun_lock); 13321 13322bailout: 13323 13324 /* 13325 * If this command has been aborted, make sure we set the status 13326 * properly. The FETD is responsible for freeing the I/O and doing 13327 * whatever it needs to do to clean up its state. 13328 */ 13329 if (io->io_hdr.flags & CTL_FLAG_ABORT) 13330 ctl_set_task_aborted(&io->scsiio); 13331 13332 /* 13333 * If enabled, print command error status. 13334 */ 13335 if ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_SUCCESS && 13336 (ctl_debug & CTL_DEBUG_INFO) != 0) 13337 ctl_io_error_print(io, NULL); 13338 13339 /* 13340 * Tell the FETD or the other shelf controller we're done with this 13341 * command. Note that only SCSI commands get to this point. Task 13342 * management commands are completed above. 13343 */ 13344 if ((softc->ha_mode != CTL_HA_MODE_XFER) && 13345 (io->io_hdr.flags & CTL_FLAG_SENT_2OTHER_SC)) { 13346 memset(&msg, 0, sizeof(msg)); 13347 msg.hdr.msg_type = CTL_MSG_FINISH_IO; 13348 msg.hdr.serializing_sc = io->io_hdr.serializing_sc; 13349 msg.hdr.nexus = io->io_hdr.nexus; 13350 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, 13351 sizeof(msg.scsi) - sizeof(msg.scsi.sense_data), 13352 M_WAITOK); 13353 } 13354 13355 fe_done(io); 13356} 13357 13358#ifdef CTL_WITH_CA 13359/* 13360 * Front end should call this if it doesn't do autosense. When the request 13361 * sense comes back in from the initiator, we'll dequeue this and send it. 13362 */ 13363int 13364ctl_queue_sense(union ctl_io *io) 13365{ 13366 struct ctl_lun *lun; 13367 struct ctl_port *port; 13368 struct ctl_softc *softc; 13369 uint32_t initidx, targ_lun; 13370 13371 softc = control_softc; 13372 13373 CTL_DEBUG_PRINT(("ctl_queue_sense\n")); 13374 13375 /* 13376 * LUN lookup will likely move to the ctl_work_thread() once we 13377 * have our new queueing infrastructure (that doesn't put things on 13378 * a per-LUN queue initially). That is so that we can handle 13379 * things like an INQUIRY to a LUN that we don't have enabled. We 13380 * can't deal with that right now. 13381 */ 13382 mtx_lock(&softc->ctl_lock); 13383 13384 /* 13385 * If we don't have a LUN for this, just toss the sense 13386 * information. 13387 */ 13388 port = ctl_io_port(&ctsio->io_hdr); 13389 targ_lun = ctl_lun_map_from_port(port, io->io_hdr.nexus.targ_lun); 13390 if ((targ_lun < CTL_MAX_LUNS) 13391 && (softc->ctl_luns[targ_lun] != NULL)) 13392 lun = softc->ctl_luns[targ_lun]; 13393 else 13394 goto bailout; 13395 13396 initidx = ctl_get_initindex(&io->io_hdr.nexus); 13397 13398 mtx_lock(&lun->lun_lock); 13399 /* 13400 * Already have CA set for this LUN...toss the sense information. 13401 */ 13402 if (ctl_is_set(lun->have_ca, initidx)) { 13403 mtx_unlock(&lun->lun_lock); 13404 goto bailout; 13405 } 13406 13407 memcpy(&lun->pending_sense[initidx], &io->scsiio.sense_data, 13408 MIN(sizeof(lun->pending_sense[initidx]), 13409 sizeof(io->scsiio.sense_data))); 13410 ctl_set_mask(lun->have_ca, initidx); 13411 mtx_unlock(&lun->lun_lock); 13412 13413bailout: 13414 mtx_unlock(&softc->ctl_lock); 13415 13416 ctl_free_io(io); 13417 13418 return (CTL_RETVAL_COMPLETE); 13419} 13420#endif 13421 13422/* 13423 * Primary command inlet from frontend ports. All SCSI and task I/O 13424 * requests must go through this function. 13425 */ 13426int 13427ctl_queue(union ctl_io *io) 13428{ 13429 struct ctl_port *port; 13430 13431 CTL_DEBUG_PRINT(("ctl_queue cdb[0]=%02X\n", io->scsiio.cdb[0])); 13432 13433#ifdef CTL_TIME_IO 13434 io->io_hdr.start_time = time_uptime; 13435 getbinuptime(&io->io_hdr.start_bt); 13436#endif /* CTL_TIME_IO */ 13437 13438 /* Map FE-specific LUN ID into global one. */ 13439 port = ctl_io_port(&io->io_hdr); 13440 io->io_hdr.nexus.targ_mapped_lun = 13441 ctl_lun_map_from_port(port, io->io_hdr.nexus.targ_lun); 13442 13443 switch (io->io_hdr.io_type) { 13444 case CTL_IO_SCSI: 13445 case CTL_IO_TASK: 13446 if (ctl_debug & CTL_DEBUG_CDB) 13447 ctl_io_print(io); 13448 ctl_enqueue_incoming(io); 13449 break; 13450 default: 13451 printf("ctl_queue: unknown I/O type %d\n", io->io_hdr.io_type); 13452 return (EINVAL); 13453 } 13454 13455 return (CTL_RETVAL_COMPLETE); 13456} 13457 13458#ifdef CTL_IO_DELAY 13459static void 13460ctl_done_timer_wakeup(void *arg) 13461{ 13462 union ctl_io *io; 13463 13464 io = (union ctl_io *)arg; 13465 ctl_done(io); 13466} 13467#endif /* CTL_IO_DELAY */ 13468 13469void 13470ctl_serseq_done(union ctl_io *io) 13471{ 13472 struct ctl_lun *lun; 13473 13474 lun = (struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 13475 if (lun->be_lun == NULL || 13476 lun->be_lun->serseq == CTL_LUN_SERSEQ_OFF) 13477 return; 13478 mtx_lock(&lun->lun_lock); 13479 io->io_hdr.flags |= CTL_FLAG_SERSEQ_DONE; 13480 ctl_check_blocked(lun); 13481 mtx_unlock(&lun->lun_lock); 13482} 13483 13484void 13485ctl_done(union ctl_io *io) 13486{ 13487 13488 /* 13489 * Enable this to catch duplicate completion issues. 13490 */ 13491#if 0 13492 if (io->io_hdr.flags & CTL_FLAG_ALREADY_DONE) { 13493 printf("%s: type %d msg %d cdb %x iptl: " 13494 "%u:%u:%u tag 0x%04x " 13495 "flag %#x status %x\n", 13496 __func__, 13497 io->io_hdr.io_type, 13498 io->io_hdr.msg_type, 13499 io->scsiio.cdb[0], 13500 io->io_hdr.nexus.initid, 13501 io->io_hdr.nexus.targ_port, 13502 io->io_hdr.nexus.targ_lun, 13503 (io->io_hdr.io_type == 13504 CTL_IO_TASK) ? 13505 io->taskio.tag_num : 13506 io->scsiio.tag_num, 13507 io->io_hdr.flags, 13508 io->io_hdr.status); 13509 } else 13510 io->io_hdr.flags |= CTL_FLAG_ALREADY_DONE; 13511#endif 13512 13513 /* 13514 * This is an internal copy of an I/O, and should not go through 13515 * the normal done processing logic. 13516 */ 13517 if (io->io_hdr.flags & CTL_FLAG_INT_COPY) 13518 return; 13519 13520#ifdef CTL_IO_DELAY 13521 if (io->io_hdr.flags & CTL_FLAG_DELAY_DONE) { 13522 io->io_hdr.flags &= ~CTL_FLAG_DELAY_DONE; 13523 } else { 13524 struct ctl_lun *lun; 13525 13526 lun =(struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 13527 13528 if ((lun != NULL) 13529 && (lun->delay_info.done_delay > 0)) { 13530 13531 callout_init(&io->io_hdr.delay_callout, /*mpsafe*/ 1); 13532 io->io_hdr.flags |= CTL_FLAG_DELAY_DONE; 13533 callout_reset(&io->io_hdr.delay_callout, 13534 lun->delay_info.done_delay * hz, 13535 ctl_done_timer_wakeup, io); 13536 if (lun->delay_info.done_type == CTL_DELAY_TYPE_ONESHOT) 13537 lun->delay_info.done_delay = 0; 13538 return; 13539 } 13540 } 13541#endif /* CTL_IO_DELAY */ 13542 13543 ctl_enqueue_done(io); 13544} 13545 13546static void 13547ctl_work_thread(void *arg) 13548{ 13549 struct ctl_thread *thr = (struct ctl_thread *)arg; 13550 struct ctl_softc *softc = thr->ctl_softc; 13551 union ctl_io *io; 13552 int retval; 13553 13554 CTL_DEBUG_PRINT(("ctl_work_thread starting\n")); 13555 13556 for (;;) { 13557 /* 13558 * We handle the queues in this order: 13559 * - ISC 13560 * - done queue (to free up resources, unblock other commands) 13561 * - RtR queue 13562 * - incoming queue 13563 * 13564 * If those queues are empty, we break out of the loop and 13565 * go to sleep. 13566 */ 13567 mtx_lock(&thr->queue_lock); 13568 io = (union ctl_io *)STAILQ_FIRST(&thr->isc_queue); 13569 if (io != NULL) { 13570 STAILQ_REMOVE_HEAD(&thr->isc_queue, links); 13571 mtx_unlock(&thr->queue_lock); 13572 ctl_handle_isc(io); 13573 continue; 13574 } 13575 io = (union ctl_io *)STAILQ_FIRST(&thr->done_queue); 13576 if (io != NULL) { 13577 STAILQ_REMOVE_HEAD(&thr->done_queue, links); 13578 /* clear any blocked commands, call fe_done */ 13579 mtx_unlock(&thr->queue_lock); 13580 ctl_process_done(io); 13581 continue; 13582 } 13583 io = (union ctl_io *)STAILQ_FIRST(&thr->incoming_queue); 13584 if (io != NULL) { 13585 STAILQ_REMOVE_HEAD(&thr->incoming_queue, links); 13586 mtx_unlock(&thr->queue_lock); 13587 if (io->io_hdr.io_type == CTL_IO_TASK) 13588 ctl_run_task(io); 13589 else 13590 ctl_scsiio_precheck(softc, &io->scsiio); 13591 continue; 13592 } 13593 io = (union ctl_io *)STAILQ_FIRST(&thr->rtr_queue); 13594 if (io != NULL) { 13595 STAILQ_REMOVE_HEAD(&thr->rtr_queue, links); 13596 mtx_unlock(&thr->queue_lock); 13597 retval = ctl_scsiio(&io->scsiio); 13598 if (retval != CTL_RETVAL_COMPLETE) 13599 CTL_DEBUG_PRINT(("ctl_scsiio failed\n")); 13600 continue; 13601 } 13602 13603 /* Sleep until we have something to do. */ 13604 mtx_sleep(thr, &thr->queue_lock, PDROP | PRIBIO, "-", 0); 13605 } 13606} 13607 13608static void 13609ctl_lun_thread(void *arg) 13610{ 13611 struct ctl_softc *softc = (struct ctl_softc *)arg; 13612 struct ctl_be_lun *be_lun; 13613 13614 CTL_DEBUG_PRINT(("ctl_lun_thread starting\n")); 13615 13616 for (;;) { 13617 mtx_lock(&softc->ctl_lock); 13618 be_lun = STAILQ_FIRST(&softc->pending_lun_queue); 13619 if (be_lun != NULL) { 13620 STAILQ_REMOVE_HEAD(&softc->pending_lun_queue, links); 13621 mtx_unlock(&softc->ctl_lock); 13622 ctl_create_lun(be_lun); 13623 continue; 13624 } 13625 13626 /* Sleep until we have something to do. */ 13627 mtx_sleep(&softc->pending_lun_queue, &softc->ctl_lock, 13628 PDROP | PRIBIO, "-", 0); 13629 } 13630} 13631 13632static void 13633ctl_thresh_thread(void *arg) 13634{ 13635 struct ctl_softc *softc = (struct ctl_softc *)arg; 13636 struct ctl_lun *lun; 13637 struct scsi_da_rw_recovery_page *rwpage; 13638 struct ctl_logical_block_provisioning_page *page; 13639 const char *attr; 13640 union ctl_ha_msg msg; 13641 uint64_t thres, val; 13642 int i, e, set; 13643 13644 CTL_DEBUG_PRINT(("ctl_thresh_thread starting\n")); 13645 13646 for (;;) { 13647 mtx_lock(&softc->ctl_lock); 13648 STAILQ_FOREACH(lun, &softc->lun_list, links) { 13649 if ((lun->flags & CTL_LUN_DISABLED) || 13650 (lun->flags & CTL_LUN_NO_MEDIA) || 13651 lun->backend->lun_attr == NULL) 13652 continue; 13653 if ((lun->flags & CTL_LUN_PRIMARY_SC) == 0 && 13654 softc->ha_mode == CTL_HA_MODE_XFER) 13655 continue; 13656 rwpage = &lun->mode_pages.rw_er_page[CTL_PAGE_CURRENT]; 13657 if ((rwpage->byte8 & SMS_RWER_LBPERE) == 0) 13658 continue; 13659 e = 0; 13660 page = &lun->mode_pages.lbp_page[CTL_PAGE_CURRENT]; 13661 for (i = 0; i < CTL_NUM_LBP_THRESH; i++) { 13662 if ((page->descr[i].flags & SLBPPD_ENABLED) == 0) 13663 continue; 13664 thres = scsi_4btoul(page->descr[i].count); 13665 thres <<= CTL_LBP_EXPONENT; 13666 switch (page->descr[i].resource) { 13667 case 0x01: 13668 attr = "blocksavail"; 13669 break; 13670 case 0x02: 13671 attr = "blocksused"; 13672 break; 13673 case 0xf1: 13674 attr = "poolblocksavail"; 13675 break; 13676 case 0xf2: 13677 attr = "poolblocksused"; 13678 break; 13679 default: 13680 continue; 13681 } 13682 mtx_unlock(&softc->ctl_lock); // XXX 13683 val = lun->backend->lun_attr( 13684 lun->be_lun->be_lun, attr); 13685 mtx_lock(&softc->ctl_lock); 13686 if (val == UINT64_MAX) 13687 continue; 13688 if ((page->descr[i].flags & SLBPPD_ARMING_MASK) 13689 == SLBPPD_ARMING_INC) 13690 e = (val >= thres); 13691 else 13692 e = (val <= thres); 13693 if (e) 13694 break; 13695 } 13696 mtx_lock(&lun->lun_lock); 13697 if (e) { 13698 scsi_u64to8b((uint8_t *)&page->descr[i] - 13699 (uint8_t *)page, lun->ua_tpt_info); 13700 if (lun->lasttpt == 0 || 13701 time_uptime - lun->lasttpt >= CTL_LBP_UA_PERIOD) { 13702 lun->lasttpt = time_uptime; 13703 ctl_est_ua_all(lun, -1, CTL_UA_THIN_PROV_THRES); 13704 set = 1; 13705 } else 13706 set = 0; 13707 } else { 13708 lun->lasttpt = 0; 13709 ctl_clr_ua_all(lun, -1, CTL_UA_THIN_PROV_THRES); 13710 set = -1; 13711 } 13712 mtx_unlock(&lun->lun_lock); 13713 if (set != 0 && 13714 lun->ctl_softc->ha_mode == CTL_HA_MODE_XFER) { 13715 /* Send msg to other side. */ 13716 bzero(&msg.ua, sizeof(msg.ua)); 13717 msg.hdr.msg_type = CTL_MSG_UA; 13718 msg.hdr.nexus.initid = -1; 13719 msg.hdr.nexus.targ_port = -1; 13720 msg.hdr.nexus.targ_lun = lun->lun; 13721 msg.hdr.nexus.targ_mapped_lun = lun->lun; 13722 msg.ua.ua_all = 1; 13723 msg.ua.ua_set = (set > 0); 13724 msg.ua.ua_type = CTL_UA_THIN_PROV_THRES; 13725 memcpy(msg.ua.ua_info, lun->ua_tpt_info, 8); 13726 mtx_unlock(&softc->ctl_lock); // XXX 13727 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, 13728 sizeof(msg.ua), M_WAITOK); 13729 mtx_lock(&softc->ctl_lock); 13730 } 13731 } 13732 mtx_unlock(&softc->ctl_lock); 13733 pause("-", CTL_LBP_PERIOD * hz); 13734 } 13735} 13736 13737static void 13738ctl_enqueue_incoming(union ctl_io *io) 13739{ 13740 struct ctl_softc *softc = control_softc; 13741 struct ctl_thread *thr; 13742 u_int idx; 13743 13744 idx = (io->io_hdr.nexus.targ_port * 127 + 13745 io->io_hdr.nexus.initid) % worker_threads; 13746 thr = &softc->threads[idx]; 13747 mtx_lock(&thr->queue_lock); 13748 STAILQ_INSERT_TAIL(&thr->incoming_queue, &io->io_hdr, links); 13749 mtx_unlock(&thr->queue_lock); 13750 wakeup(thr); 13751} 13752 13753static void 13754ctl_enqueue_rtr(union ctl_io *io) 13755{ 13756 struct ctl_softc *softc = control_softc; 13757 struct ctl_thread *thr; 13758 13759 thr = &softc->threads[io->io_hdr.nexus.targ_mapped_lun % worker_threads]; 13760 mtx_lock(&thr->queue_lock); 13761 STAILQ_INSERT_TAIL(&thr->rtr_queue, &io->io_hdr, links); 13762 mtx_unlock(&thr->queue_lock); 13763 wakeup(thr); 13764} 13765 13766static void 13767ctl_enqueue_done(union ctl_io *io) 13768{ 13769 struct ctl_softc *softc = control_softc; 13770 struct ctl_thread *thr; 13771 13772 thr = &softc->threads[io->io_hdr.nexus.targ_mapped_lun % worker_threads]; 13773 mtx_lock(&thr->queue_lock); 13774 STAILQ_INSERT_TAIL(&thr->done_queue, &io->io_hdr, links); 13775 mtx_unlock(&thr->queue_lock); 13776 wakeup(thr); 13777} 13778 13779static void 13780ctl_enqueue_isc(union ctl_io *io) 13781{ 13782 struct ctl_softc *softc = control_softc; 13783 struct ctl_thread *thr; 13784 13785 thr = &softc->threads[io->io_hdr.nexus.targ_mapped_lun % worker_threads]; 13786 mtx_lock(&thr->queue_lock); 13787 STAILQ_INSERT_TAIL(&thr->isc_queue, &io->io_hdr, links); 13788 mtx_unlock(&thr->queue_lock); 13789 wakeup(thr); 13790} 13791 13792/* 13793 * vim: ts=8 13794 */ 13795