ctl.c revision 311417
1/*- 2 * Copyright (c) 2003-2009 Silicon Graphics International Corp. 3 * Copyright (c) 2012 The FreeBSD Foundation 4 * Copyright (c) 2015 Alexander Motin <mav@FreeBSD.org> 5 * All rights reserved. 6 * 7 * Portions of this software were developed by Edward Tomasz Napierala 8 * under sponsorship from the FreeBSD Foundation. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions, and the following disclaimer, 15 * without modification. 16 * 2. Redistributions in binary form must reproduce at minimum a disclaimer 17 * substantially similar to the "NO WARRANTY" disclaimer below 18 * ("Disclaimer") and any redistribution must be conditioned upon 19 * including a substantially similar Disclaimer requirement for further 20 * binary redistribution. 21 * 22 * NO WARRANTY 23 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 24 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 25 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR 26 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 27 * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 31 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 32 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 33 * POSSIBILITY OF SUCH DAMAGES. 34 * 35 * $Id$ 36 */ 37/* 38 * CAM Target Layer, a SCSI device emulation subsystem. 39 * 40 * Author: Ken Merry <ken@FreeBSD.org> 41 */ 42 43#define _CTL_C 44 45#include <sys/cdefs.h> 46__FBSDID("$FreeBSD: stable/10/sys/cam/ctl/ctl.c 311417 2017-01-05 11:36:52Z mav $"); 47 48#include <sys/param.h> 49#include <sys/systm.h> 50#include <sys/ctype.h> 51#include <sys/kernel.h> 52#include <sys/types.h> 53#include <sys/kthread.h> 54#include <sys/bio.h> 55#include <sys/fcntl.h> 56#include <sys/lock.h> 57#include <sys/module.h> 58#include <sys/mutex.h> 59#include <sys/condvar.h> 60#include <sys/malloc.h> 61#include <sys/conf.h> 62#include <sys/ioccom.h> 63#include <sys/queue.h> 64#include <sys/sbuf.h> 65#include <sys/smp.h> 66#include <sys/endian.h> 67#include <sys/sysctl.h> 68#include <vm/uma.h> 69 70#include <cam/cam.h> 71#include <cam/scsi/scsi_all.h> 72#include <cam/scsi/scsi_cd.h> 73#include <cam/scsi/scsi_da.h> 74#include <cam/ctl/ctl_io.h> 75#include <cam/ctl/ctl.h> 76#include <cam/ctl/ctl_frontend.h> 77#include <cam/ctl/ctl_util.h> 78#include <cam/ctl/ctl_backend.h> 79#include <cam/ctl/ctl_ioctl.h> 80#include <cam/ctl/ctl_ha.h> 81#include <cam/ctl/ctl_private.h> 82#include <cam/ctl/ctl_debug.h> 83#include <cam/ctl/ctl_scsi_all.h> 84#include <cam/ctl/ctl_error.h> 85 86struct ctl_softc *control_softc = NULL; 87 88/* 89 * Template mode pages. 90 */ 91 92/* 93 * Note that these are default values only. The actual values will be 94 * filled in when the user does a mode sense. 95 */ 96const static struct scsi_da_rw_recovery_page rw_er_page_default = { 97 /*page_code*/SMS_RW_ERROR_RECOVERY_PAGE, 98 /*page_length*/sizeof(struct scsi_da_rw_recovery_page) - 2, 99 /*byte3*/SMS_RWER_AWRE|SMS_RWER_ARRE, 100 /*read_retry_count*/0, 101 /*correction_span*/0, 102 /*head_offset_count*/0, 103 /*data_strobe_offset_cnt*/0, 104 /*byte8*/SMS_RWER_LBPERE, 105 /*write_retry_count*/0, 106 /*reserved2*/0, 107 /*recovery_time_limit*/{0, 0}, 108}; 109 110const static struct scsi_da_rw_recovery_page rw_er_page_changeable = { 111 /*page_code*/SMS_RW_ERROR_RECOVERY_PAGE, 112 /*page_length*/sizeof(struct scsi_da_rw_recovery_page) - 2, 113 /*byte3*/SMS_RWER_PER, 114 /*read_retry_count*/0, 115 /*correction_span*/0, 116 /*head_offset_count*/0, 117 /*data_strobe_offset_cnt*/0, 118 /*byte8*/SMS_RWER_LBPERE, 119 /*write_retry_count*/0, 120 /*reserved2*/0, 121 /*recovery_time_limit*/{0, 0}, 122}; 123 124const static struct scsi_format_page format_page_default = { 125 /*page_code*/SMS_FORMAT_DEVICE_PAGE, 126 /*page_length*/sizeof(struct scsi_format_page) - 2, 127 /*tracks_per_zone*/ {0, 0}, 128 /*alt_sectors_per_zone*/ {0, 0}, 129 /*alt_tracks_per_zone*/ {0, 0}, 130 /*alt_tracks_per_lun*/ {0, 0}, 131 /*sectors_per_track*/ {(CTL_DEFAULT_SECTORS_PER_TRACK >> 8) & 0xff, 132 CTL_DEFAULT_SECTORS_PER_TRACK & 0xff}, 133 /*bytes_per_sector*/ {0, 0}, 134 /*interleave*/ {0, 0}, 135 /*track_skew*/ {0, 0}, 136 /*cylinder_skew*/ {0, 0}, 137 /*flags*/ SFP_HSEC, 138 /*reserved*/ {0, 0, 0} 139}; 140 141const static struct scsi_format_page format_page_changeable = { 142 /*page_code*/SMS_FORMAT_DEVICE_PAGE, 143 /*page_length*/sizeof(struct scsi_format_page) - 2, 144 /*tracks_per_zone*/ {0, 0}, 145 /*alt_sectors_per_zone*/ {0, 0}, 146 /*alt_tracks_per_zone*/ {0, 0}, 147 /*alt_tracks_per_lun*/ {0, 0}, 148 /*sectors_per_track*/ {0, 0}, 149 /*bytes_per_sector*/ {0, 0}, 150 /*interleave*/ {0, 0}, 151 /*track_skew*/ {0, 0}, 152 /*cylinder_skew*/ {0, 0}, 153 /*flags*/ 0, 154 /*reserved*/ {0, 0, 0} 155}; 156 157const static struct scsi_rigid_disk_page rigid_disk_page_default = { 158 /*page_code*/SMS_RIGID_DISK_PAGE, 159 /*page_length*/sizeof(struct scsi_rigid_disk_page) - 2, 160 /*cylinders*/ {0, 0, 0}, 161 /*heads*/ CTL_DEFAULT_HEADS, 162 /*start_write_precomp*/ {0, 0, 0}, 163 /*start_reduced_current*/ {0, 0, 0}, 164 /*step_rate*/ {0, 0}, 165 /*landing_zone_cylinder*/ {0, 0, 0}, 166 /*rpl*/ SRDP_RPL_DISABLED, 167 /*rotational_offset*/ 0, 168 /*reserved1*/ 0, 169 /*rotation_rate*/ {(CTL_DEFAULT_ROTATION_RATE >> 8) & 0xff, 170 CTL_DEFAULT_ROTATION_RATE & 0xff}, 171 /*reserved2*/ {0, 0} 172}; 173 174const static struct scsi_rigid_disk_page rigid_disk_page_changeable = { 175 /*page_code*/SMS_RIGID_DISK_PAGE, 176 /*page_length*/sizeof(struct scsi_rigid_disk_page) - 2, 177 /*cylinders*/ {0, 0, 0}, 178 /*heads*/ 0, 179 /*start_write_precomp*/ {0, 0, 0}, 180 /*start_reduced_current*/ {0, 0, 0}, 181 /*step_rate*/ {0, 0}, 182 /*landing_zone_cylinder*/ {0, 0, 0}, 183 /*rpl*/ 0, 184 /*rotational_offset*/ 0, 185 /*reserved1*/ 0, 186 /*rotation_rate*/ {0, 0}, 187 /*reserved2*/ {0, 0} 188}; 189 190const static struct scsi_da_verify_recovery_page verify_er_page_default = { 191 /*page_code*/SMS_VERIFY_ERROR_RECOVERY_PAGE, 192 /*page_length*/sizeof(struct scsi_da_verify_recovery_page) - 2, 193 /*byte3*/0, 194 /*read_retry_count*/0, 195 /*reserved*/{ 0, 0, 0, 0, 0, 0 }, 196 /*recovery_time_limit*/{0, 0}, 197}; 198 199const static struct scsi_da_verify_recovery_page verify_er_page_changeable = { 200 /*page_code*/SMS_VERIFY_ERROR_RECOVERY_PAGE, 201 /*page_length*/sizeof(struct scsi_da_verify_recovery_page) - 2, 202 /*byte3*/SMS_VER_PER, 203 /*read_retry_count*/0, 204 /*reserved*/{ 0, 0, 0, 0, 0, 0 }, 205 /*recovery_time_limit*/{0, 0}, 206}; 207 208const static struct scsi_caching_page caching_page_default = { 209 /*page_code*/SMS_CACHING_PAGE, 210 /*page_length*/sizeof(struct scsi_caching_page) - 2, 211 /*flags1*/ SCP_DISC | SCP_WCE, 212 /*ret_priority*/ 0, 213 /*disable_pf_transfer_len*/ {0xff, 0xff}, 214 /*min_prefetch*/ {0, 0}, 215 /*max_prefetch*/ {0xff, 0xff}, 216 /*max_pf_ceiling*/ {0xff, 0xff}, 217 /*flags2*/ 0, 218 /*cache_segments*/ 0, 219 /*cache_seg_size*/ {0, 0}, 220 /*reserved*/ 0, 221 /*non_cache_seg_size*/ {0, 0, 0} 222}; 223 224const static struct scsi_caching_page caching_page_changeable = { 225 /*page_code*/SMS_CACHING_PAGE, 226 /*page_length*/sizeof(struct scsi_caching_page) - 2, 227 /*flags1*/ SCP_WCE | SCP_RCD, 228 /*ret_priority*/ 0, 229 /*disable_pf_transfer_len*/ {0, 0}, 230 /*min_prefetch*/ {0, 0}, 231 /*max_prefetch*/ {0, 0}, 232 /*max_pf_ceiling*/ {0, 0}, 233 /*flags2*/ 0, 234 /*cache_segments*/ 0, 235 /*cache_seg_size*/ {0, 0}, 236 /*reserved*/ 0, 237 /*non_cache_seg_size*/ {0, 0, 0} 238}; 239 240const static struct scsi_control_page control_page_default = { 241 /*page_code*/SMS_CONTROL_MODE_PAGE, 242 /*page_length*/sizeof(struct scsi_control_page) - 2, 243 /*rlec*/0, 244 /*queue_flags*/SCP_QUEUE_ALG_RESTRICTED, 245 /*eca_and_aen*/0, 246 /*flags4*/SCP_TAS, 247 /*aen_holdoff_period*/{0, 0}, 248 /*busy_timeout_period*/{0, 0}, 249 /*extended_selftest_completion_time*/{0, 0} 250}; 251 252const static struct scsi_control_page control_page_changeable = { 253 /*page_code*/SMS_CONTROL_MODE_PAGE, 254 /*page_length*/sizeof(struct scsi_control_page) - 2, 255 /*rlec*/SCP_DSENSE, 256 /*queue_flags*/SCP_QUEUE_ALG_MASK | SCP_NUAR, 257 /*eca_and_aen*/SCP_SWP, 258 /*flags4*/0, 259 /*aen_holdoff_period*/{0, 0}, 260 /*busy_timeout_period*/{0, 0}, 261 /*extended_selftest_completion_time*/{0, 0} 262}; 263 264#define CTL_CEM_LEN (sizeof(struct scsi_control_ext_page) - 4) 265 266const static struct scsi_control_ext_page control_ext_page_default = { 267 /*page_code*/SMS_CONTROL_MODE_PAGE | SMPH_SPF, 268 /*subpage_code*/0x01, 269 /*page_length*/{CTL_CEM_LEN >> 8, CTL_CEM_LEN}, 270 /*flags*/0, 271 /*prio*/0, 272 /*max_sense*/0 273}; 274 275const static struct scsi_control_ext_page control_ext_page_changeable = { 276 /*page_code*/SMS_CONTROL_MODE_PAGE | SMPH_SPF, 277 /*subpage_code*/0x01, 278 /*page_length*/{CTL_CEM_LEN >> 8, CTL_CEM_LEN}, 279 /*flags*/0, 280 /*prio*/0, 281 /*max_sense*/0 282}; 283 284const static struct scsi_info_exceptions_page ie_page_default = { 285 /*page_code*/SMS_INFO_EXCEPTIONS_PAGE, 286 /*page_length*/sizeof(struct scsi_info_exceptions_page) - 2, 287 /*info_flags*/SIEP_FLAGS_EWASC, 288 /*mrie*/SIEP_MRIE_NO, 289 /*interval_timer*/{0, 0, 0, 0}, 290 /*report_count*/{0, 0, 0, 1} 291}; 292 293const static struct scsi_info_exceptions_page ie_page_changeable = { 294 /*page_code*/SMS_INFO_EXCEPTIONS_PAGE, 295 /*page_length*/sizeof(struct scsi_info_exceptions_page) - 2, 296 /*info_flags*/SIEP_FLAGS_EWASC | SIEP_FLAGS_DEXCPT | SIEP_FLAGS_TEST | 297 SIEP_FLAGS_LOGERR, 298 /*mrie*/0x0f, 299 /*interval_timer*/{0xff, 0xff, 0xff, 0xff}, 300 /*report_count*/{0xff, 0xff, 0xff, 0xff} 301}; 302 303#define CTL_LBPM_LEN (sizeof(struct ctl_logical_block_provisioning_page) - 4) 304 305const static struct ctl_logical_block_provisioning_page lbp_page_default = {{ 306 /*page_code*/SMS_INFO_EXCEPTIONS_PAGE | SMPH_SPF, 307 /*subpage_code*/0x02, 308 /*page_length*/{CTL_LBPM_LEN >> 8, CTL_LBPM_LEN}, 309 /*flags*/0, 310 /*reserved*/{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}, 311 /*descr*/{}}, 312 {{/*flags*/0, 313 /*resource*/0x01, 314 /*reserved*/{0, 0}, 315 /*count*/{0, 0, 0, 0}}, 316 {/*flags*/0, 317 /*resource*/0x02, 318 /*reserved*/{0, 0}, 319 /*count*/{0, 0, 0, 0}}, 320 {/*flags*/0, 321 /*resource*/0xf1, 322 /*reserved*/{0, 0}, 323 /*count*/{0, 0, 0, 0}}, 324 {/*flags*/0, 325 /*resource*/0xf2, 326 /*reserved*/{0, 0}, 327 /*count*/{0, 0, 0, 0}} 328 } 329}; 330 331const static struct ctl_logical_block_provisioning_page lbp_page_changeable = {{ 332 /*page_code*/SMS_INFO_EXCEPTIONS_PAGE | SMPH_SPF, 333 /*subpage_code*/0x02, 334 /*page_length*/{CTL_LBPM_LEN >> 8, CTL_LBPM_LEN}, 335 /*flags*/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; 405TUNABLE_INT("kern.cam.ctl.worker_threads", &worker_threads); 406SYSCTL_INT(_kern_cam_ctl, OID_AUTO, worker_threads, CTLFLAG_RDTUN, 407 &worker_threads, 1, "Number of worker threads"); 408static int ctl_debug = CTL_DEBUG_NONE; 409TUNABLE_INT("kern.cam.ctl.debug", &ctl_debug); 410SYSCTL_INT(_kern_cam_ctl, OID_AUTO, debug, CTLFLAG_RWTUN, 411 &ctl_debug, 0, "Enabled debug flags"); 412 413/* 414 * Supported pages (0x00), Serial number (0x80), Device ID (0x83), 415 * Extended INQUIRY Data (0x86), Mode Page Policy (0x87), 416 * SCSI Ports (0x88), Third-party Copy (0x8F), Block limits (0xB0), 417 * Block Device Characteristics (0xB1) and Logical Block Provisioning (0xB2) 418 */ 419#define SCSI_EVPD_NUM_SUPPORTED_PAGES 10 420 421static void ctl_isc_event_handler(ctl_ha_channel chanel, ctl_ha_event event, 422 int param); 423static void ctl_copy_sense_data(union ctl_ha_msg *src, union ctl_io *dest); 424static void ctl_copy_sense_data_back(union ctl_io *src, union ctl_ha_msg *dest); 425static int ctl_init(void); 426void ctl_shutdown(void); 427static int ctl_open(struct cdev *dev, int flags, int fmt, struct thread *td); 428static int ctl_close(struct cdev *dev, int flags, int fmt, struct thread *td); 429static int ctl_serialize_other_sc_cmd(struct ctl_scsiio *ctsio); 430static void ctl_ioctl_fill_ooa(struct ctl_lun *lun, uint32_t *cur_fill_num, 431 struct ctl_ooa *ooa_hdr, 432 struct ctl_ooa_entry *kern_entries); 433static int ctl_ioctl(struct cdev *dev, u_long cmd, caddr_t addr, int flag, 434 struct thread *td); 435static int ctl_alloc_lun(struct ctl_softc *ctl_softc, struct ctl_lun *lun, 436 struct ctl_be_lun *be_lun); 437static int ctl_free_lun(struct ctl_lun *lun); 438static void ctl_create_lun(struct ctl_be_lun *be_lun); 439static struct ctl_port * ctl_io_port(struct ctl_io_hdr *io_hdr); 440 441static int ctl_do_mode_select(union ctl_io *io); 442static int ctl_pro_preempt(struct ctl_softc *softc, struct ctl_lun *lun, 443 uint64_t res_key, uint64_t sa_res_key, 444 uint8_t type, uint32_t residx, 445 struct ctl_scsiio *ctsio, 446 struct scsi_per_res_out *cdb, 447 struct scsi_per_res_out_parms* param); 448static void ctl_pro_preempt_other(struct ctl_lun *lun, 449 union ctl_ha_msg *msg); 450static void ctl_hndl_per_res_out_on_other_sc(union ctl_ha_msg *msg); 451static int ctl_inquiry_evpd_supported(struct ctl_scsiio *ctsio, int alloc_len); 452static int ctl_inquiry_evpd_serial(struct ctl_scsiio *ctsio, int alloc_len); 453static int ctl_inquiry_evpd_devid(struct ctl_scsiio *ctsio, int alloc_len); 454static int ctl_inquiry_evpd_eid(struct ctl_scsiio *ctsio, int alloc_len); 455static int ctl_inquiry_evpd_mpp(struct ctl_scsiio *ctsio, int alloc_len); 456static int ctl_inquiry_evpd_scsi_ports(struct ctl_scsiio *ctsio, 457 int alloc_len); 458static int ctl_inquiry_evpd_block_limits(struct ctl_scsiio *ctsio, 459 int alloc_len); 460static int ctl_inquiry_evpd_bdc(struct ctl_scsiio *ctsio, int alloc_len); 461static int ctl_inquiry_evpd_lbp(struct ctl_scsiio *ctsio, int alloc_len); 462static int ctl_inquiry_evpd(struct ctl_scsiio *ctsio); 463static int ctl_inquiry_std(struct ctl_scsiio *ctsio); 464static int ctl_get_lba_len(union ctl_io *io, uint64_t *lba, uint64_t *len); 465static ctl_action ctl_extent_check(union ctl_io *io1, union ctl_io *io2, 466 bool seq); 467static ctl_action ctl_extent_check_seq(union ctl_io *io1, union ctl_io *io2); 468static ctl_action ctl_check_for_blockage(struct ctl_lun *lun, 469 union ctl_io *pending_io, union ctl_io *ooa_io); 470static ctl_action ctl_check_ooa(struct ctl_lun *lun, union ctl_io *pending_io, 471 union ctl_io *starting_io); 472static int ctl_check_blocked(struct ctl_lun *lun); 473static int ctl_scsiio_lun_check(struct ctl_lun *lun, 474 const struct ctl_cmd_entry *entry, 475 struct ctl_scsiio *ctsio); 476static void ctl_failover_lun(union ctl_io *io); 477static int ctl_scsiio_precheck(struct ctl_softc *ctl_softc, 478 struct ctl_scsiio *ctsio); 479static int ctl_scsiio(struct ctl_scsiio *ctsio); 480 481static int ctl_bus_reset(struct ctl_softc *ctl_softc, union ctl_io *io); 482static int ctl_target_reset(struct ctl_softc *ctl_softc, union ctl_io *io, 483 ctl_ua_type ua_type); 484static int ctl_do_lun_reset(struct ctl_lun *lun, union ctl_io *io, 485 ctl_ua_type ua_type); 486static int ctl_lun_reset(struct ctl_softc *ctl_softc, union ctl_io *io); 487static int ctl_abort_task(union ctl_io *io); 488static int ctl_abort_task_set(union ctl_io *io); 489static int ctl_query_task(union ctl_io *io, int task_set); 490static int ctl_i_t_nexus_reset(union ctl_io *io); 491static int ctl_query_async_event(union ctl_io *io); 492static void ctl_run_task(union ctl_io *io); 493#ifdef CTL_IO_DELAY 494static void ctl_datamove_timer_wakeup(void *arg); 495static void ctl_done_timer_wakeup(void *arg); 496#endif /* CTL_IO_DELAY */ 497 498static void ctl_send_datamove_done(union ctl_io *io, int have_lock); 499static void ctl_datamove_remote_write_cb(struct ctl_ha_dt_req *rq); 500static int ctl_datamove_remote_dm_write_cb(union ctl_io *io); 501static void ctl_datamove_remote_write(union ctl_io *io); 502static int ctl_datamove_remote_dm_read_cb(union ctl_io *io); 503static void ctl_datamove_remote_read_cb(struct ctl_ha_dt_req *rq); 504static int ctl_datamove_remote_sgl_setup(union ctl_io *io); 505static int ctl_datamove_remote_xfer(union ctl_io *io, unsigned command, 506 ctl_ha_dt_cb callback); 507static void ctl_datamove_remote_read(union ctl_io *io); 508static void ctl_datamove_remote(union ctl_io *io); 509static void ctl_process_done(union ctl_io *io); 510static void ctl_lun_thread(void *arg); 511static void ctl_thresh_thread(void *arg); 512static void ctl_work_thread(void *arg); 513static void ctl_enqueue_incoming(union ctl_io *io); 514static void ctl_enqueue_rtr(union ctl_io *io); 515static void ctl_enqueue_done(union ctl_io *io); 516static void ctl_enqueue_isc(union ctl_io *io); 517static const struct ctl_cmd_entry * 518 ctl_get_cmd_entry(struct ctl_scsiio *ctsio, int *sa); 519static const struct ctl_cmd_entry * 520 ctl_validate_command(struct ctl_scsiio *ctsio); 521static int ctl_cmd_applicable(uint8_t lun_type, 522 const struct ctl_cmd_entry *entry); 523 524static uint64_t ctl_get_prkey(struct ctl_lun *lun, uint32_t residx); 525static void ctl_clr_prkey(struct ctl_lun *lun, uint32_t residx); 526static void ctl_alloc_prkey(struct ctl_lun *lun, uint32_t residx); 527static void ctl_set_prkey(struct ctl_lun *lun, uint32_t residx, uint64_t key); 528 529/* 530 * Load the serialization table. This isn't very pretty, but is probably 531 * the easiest way to do it. 532 */ 533#include "ctl_ser_table.c" 534 535/* 536 * We only need to define open, close and ioctl routines for this driver. 537 */ 538static struct cdevsw ctl_cdevsw = { 539 .d_version = D_VERSION, 540 .d_flags = 0, 541 .d_open = ctl_open, 542 .d_close = ctl_close, 543 .d_ioctl = ctl_ioctl, 544 .d_name = "ctl", 545}; 546 547 548MALLOC_DEFINE(M_CTL, "ctlmem", "Memory used for CTL"); 549 550static int ctl_module_event_handler(module_t, int /*modeventtype_t*/, void *); 551 552static moduledata_t ctl_moduledata = { 553 "ctl", 554 ctl_module_event_handler, 555 NULL 556}; 557 558DECLARE_MODULE(ctl, ctl_moduledata, SI_SUB_CONFIGURE, SI_ORDER_THIRD); 559MODULE_VERSION(ctl, 1); 560 561static struct ctl_frontend ha_frontend = 562{ 563 .name = "ha", 564}; 565 566static void 567ctl_ha_datamove(union ctl_io *io) 568{ 569 struct ctl_lun *lun; 570 struct ctl_sg_entry *sgl; 571 union ctl_ha_msg msg; 572 uint32_t sg_entries_sent; 573 int do_sg_copy, i, j; 574 575 lun = (struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 576 memset(&msg.dt, 0, sizeof(msg.dt)); 577 msg.hdr.msg_type = CTL_MSG_DATAMOVE; 578 msg.hdr.original_sc = io->io_hdr.original_sc; 579 msg.hdr.serializing_sc = io; 580 msg.hdr.nexus = io->io_hdr.nexus; 581 msg.hdr.status = io->io_hdr.status; 582 msg.dt.flags = io->io_hdr.flags; 583 584 /* 585 * We convert everything into a S/G list here. We can't 586 * pass by reference, only by value between controllers. 587 * So we can't pass a pointer to the S/G list, only as many 588 * S/G entries as we can fit in here. If it's possible for 589 * us to get more than CTL_HA_MAX_SG_ENTRIES S/G entries, 590 * then we need to break this up into multiple transfers. 591 */ 592 if (io->scsiio.kern_sg_entries == 0) { 593 msg.dt.kern_sg_entries = 1; 594#if 0 595 if (io->io_hdr.flags & CTL_FLAG_BUS_ADDR) { 596 msg.dt.sg_list[0].addr = io->scsiio.kern_data_ptr; 597 } else { 598 /* XXX KDM use busdma here! */ 599 msg.dt.sg_list[0].addr = 600 (void *)vtophys(io->scsiio.kern_data_ptr); 601 } 602#else 603 KASSERT((io->io_hdr.flags & CTL_FLAG_BUS_ADDR) == 0, 604 ("HA does not support BUS_ADDR")); 605 msg.dt.sg_list[0].addr = io->scsiio.kern_data_ptr; 606#endif 607 msg.dt.sg_list[0].len = io->scsiio.kern_data_len; 608 do_sg_copy = 0; 609 } else { 610 msg.dt.kern_sg_entries = io->scsiio.kern_sg_entries; 611 do_sg_copy = 1; 612 } 613 614 msg.dt.kern_data_len = io->scsiio.kern_data_len; 615 msg.dt.kern_total_len = io->scsiio.kern_total_len; 616 msg.dt.kern_data_resid = io->scsiio.kern_data_resid; 617 msg.dt.kern_rel_offset = io->scsiio.kern_rel_offset; 618 msg.dt.sg_sequence = 0; 619 620 /* 621 * Loop until we've sent all of the S/G entries. On the 622 * other end, we'll recompose these S/G entries into one 623 * contiguous list before processing. 624 */ 625 for (sg_entries_sent = 0; sg_entries_sent < msg.dt.kern_sg_entries; 626 msg.dt.sg_sequence++) { 627 msg.dt.cur_sg_entries = MIN((sizeof(msg.dt.sg_list) / 628 sizeof(msg.dt.sg_list[0])), 629 msg.dt.kern_sg_entries - sg_entries_sent); 630 if (do_sg_copy != 0) { 631 sgl = (struct ctl_sg_entry *)io->scsiio.kern_data_ptr; 632 for (i = sg_entries_sent, j = 0; 633 i < msg.dt.cur_sg_entries; i++, j++) { 634#if 0 635 if (io->io_hdr.flags & CTL_FLAG_BUS_ADDR) { 636 msg.dt.sg_list[j].addr = sgl[i].addr; 637 } else { 638 /* XXX KDM use busdma here! */ 639 msg.dt.sg_list[j].addr = 640 (void *)vtophys(sgl[i].addr); 641 } 642#else 643 KASSERT((io->io_hdr.flags & 644 CTL_FLAG_BUS_ADDR) == 0, 645 ("HA does not support BUS_ADDR")); 646 msg.dt.sg_list[j].addr = sgl[i].addr; 647#endif 648 msg.dt.sg_list[j].len = sgl[i].len; 649 } 650 } 651 652 sg_entries_sent += msg.dt.cur_sg_entries; 653 msg.dt.sg_last = (sg_entries_sent >= msg.dt.kern_sg_entries); 654 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, 655 sizeof(msg.dt) - sizeof(msg.dt.sg_list) + 656 sizeof(struct ctl_sg_entry) * msg.dt.cur_sg_entries, 657 M_WAITOK) > CTL_HA_STATUS_SUCCESS) { 658 io->io_hdr.port_status = 31341; 659 io->scsiio.be_move_done(io); 660 return; 661 } 662 msg.dt.sent_sg_entries = sg_entries_sent; 663 } 664 665 /* 666 * Officially handover the request from us to peer. 667 * If failover has just happened, then we must return error. 668 * If failover happen just after, then it is not our problem. 669 */ 670 if (lun) 671 mtx_lock(&lun->lun_lock); 672 if (io->io_hdr.flags & CTL_FLAG_FAILOVER) { 673 if (lun) 674 mtx_unlock(&lun->lun_lock); 675 io->io_hdr.port_status = 31342; 676 io->scsiio.be_move_done(io); 677 return; 678 } 679 io->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 680 io->io_hdr.flags |= CTL_FLAG_DMA_INPROG; 681 if (lun) 682 mtx_unlock(&lun->lun_lock); 683} 684 685static void 686ctl_ha_done(union ctl_io *io) 687{ 688 union ctl_ha_msg msg; 689 690 if (io->io_hdr.io_type == CTL_IO_SCSI) { 691 memset(&msg, 0, sizeof(msg)); 692 msg.hdr.msg_type = CTL_MSG_FINISH_IO; 693 msg.hdr.original_sc = io->io_hdr.original_sc; 694 msg.hdr.nexus = io->io_hdr.nexus; 695 msg.hdr.status = io->io_hdr.status; 696 msg.scsi.scsi_status = io->scsiio.scsi_status; 697 msg.scsi.tag_num = io->scsiio.tag_num; 698 msg.scsi.tag_type = io->scsiio.tag_type; 699 msg.scsi.sense_len = io->scsiio.sense_len; 700 msg.scsi.sense_residual = io->scsiio.sense_residual; 701 msg.scsi.residual = io->scsiio.residual; 702 memcpy(&msg.scsi.sense_data, &io->scsiio.sense_data, 703 io->scsiio.sense_len); 704 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, 705 sizeof(msg.scsi) - sizeof(msg.scsi.sense_data) + 706 msg.scsi.sense_len, M_WAITOK); 707 } 708 ctl_free_io(io); 709} 710 711static void 712ctl_isc_handler_finish_xfer(struct ctl_softc *ctl_softc, 713 union ctl_ha_msg *msg_info) 714{ 715 struct ctl_scsiio *ctsio; 716 717 if (msg_info->hdr.original_sc == NULL) { 718 printf("%s: original_sc == NULL!\n", __func__); 719 /* XXX KDM now what? */ 720 return; 721 } 722 723 ctsio = &msg_info->hdr.original_sc->scsiio; 724 ctsio->io_hdr.flags |= CTL_FLAG_IO_ACTIVE; 725 ctsio->io_hdr.msg_type = CTL_MSG_FINISH_IO; 726 ctsio->io_hdr.status = msg_info->hdr.status; 727 ctsio->scsi_status = msg_info->scsi.scsi_status; 728 ctsio->sense_len = msg_info->scsi.sense_len; 729 ctsio->sense_residual = msg_info->scsi.sense_residual; 730 ctsio->residual = msg_info->scsi.residual; 731 memcpy(&ctsio->sense_data, &msg_info->scsi.sense_data, 732 msg_info->scsi.sense_len); 733 ctl_enqueue_isc((union ctl_io *)ctsio); 734} 735 736static void 737ctl_isc_handler_finish_ser_only(struct ctl_softc *ctl_softc, 738 union ctl_ha_msg *msg_info) 739{ 740 struct ctl_scsiio *ctsio; 741 742 if (msg_info->hdr.serializing_sc == NULL) { 743 printf("%s: serializing_sc == NULL!\n", __func__); 744 /* XXX KDM now what? */ 745 return; 746 } 747 748 ctsio = &msg_info->hdr.serializing_sc->scsiio; 749 ctsio->io_hdr.msg_type = CTL_MSG_FINISH_IO; 750 ctl_enqueue_isc((union ctl_io *)ctsio); 751} 752 753void 754ctl_isc_announce_lun(struct ctl_lun *lun) 755{ 756 struct ctl_softc *softc = lun->ctl_softc; 757 union ctl_ha_msg *msg; 758 struct ctl_ha_msg_lun_pr_key pr_key; 759 int i, k; 760 761 if (softc->ha_link != CTL_HA_LINK_ONLINE) 762 return; 763 mtx_lock(&lun->lun_lock); 764 i = sizeof(msg->lun); 765 if (lun->lun_devid) 766 i += lun->lun_devid->len; 767 i += sizeof(pr_key) * lun->pr_key_count; 768alloc: 769 mtx_unlock(&lun->lun_lock); 770 msg = malloc(i, M_CTL, M_WAITOK); 771 mtx_lock(&lun->lun_lock); 772 k = sizeof(msg->lun); 773 if (lun->lun_devid) 774 k += lun->lun_devid->len; 775 k += sizeof(pr_key) * lun->pr_key_count; 776 if (i < k) { 777 free(msg, M_CTL); 778 i = k; 779 goto alloc; 780 } 781 bzero(&msg->lun, sizeof(msg->lun)); 782 msg->hdr.msg_type = CTL_MSG_LUN_SYNC; 783 msg->hdr.nexus.targ_lun = lun->lun; 784 msg->hdr.nexus.targ_mapped_lun = lun->lun; 785 msg->lun.flags = lun->flags; 786 msg->lun.pr_generation = lun->pr_generation; 787 msg->lun.pr_res_idx = lun->pr_res_idx; 788 msg->lun.pr_res_type = lun->pr_res_type; 789 msg->lun.pr_key_count = lun->pr_key_count; 790 i = 0; 791 if (lun->lun_devid) { 792 msg->lun.lun_devid_len = lun->lun_devid->len; 793 memcpy(&msg->lun.data[i], lun->lun_devid->data, 794 msg->lun.lun_devid_len); 795 i += msg->lun.lun_devid_len; 796 } 797 for (k = 0; k < CTL_MAX_INITIATORS; k++) { 798 if ((pr_key.pr_key = ctl_get_prkey(lun, k)) == 0) 799 continue; 800 pr_key.pr_iid = k; 801 memcpy(&msg->lun.data[i], &pr_key, sizeof(pr_key)); 802 i += sizeof(pr_key); 803 } 804 mtx_unlock(&lun->lun_lock); 805 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg->port, sizeof(msg->port) + i, 806 M_WAITOK); 807 free(msg, M_CTL); 808 809 if (lun->flags & CTL_LUN_PRIMARY_SC) { 810 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 811 ctl_isc_announce_mode(lun, -1, 812 lun->mode_pages.index[i].page_code & SMPH_PC_MASK, 813 lun->mode_pages.index[i].subpage); 814 } 815 } 816} 817 818void 819ctl_isc_announce_port(struct ctl_port *port) 820{ 821 struct ctl_softc *softc = port->ctl_softc; 822 union ctl_ha_msg *msg; 823 int i; 824 825 if (port->targ_port < softc->port_min || 826 port->targ_port >= softc->port_max || 827 softc->ha_link != CTL_HA_LINK_ONLINE) 828 return; 829 i = sizeof(msg->port) + strlen(port->port_name) + 1; 830 if (port->lun_map) 831 i += sizeof(uint32_t) * CTL_MAX_LUNS; 832 if (port->port_devid) 833 i += port->port_devid->len; 834 if (port->target_devid) 835 i += port->target_devid->len; 836 if (port->init_devid) 837 i += port->init_devid->len; 838 msg = malloc(i, M_CTL, M_WAITOK); 839 bzero(&msg->port, sizeof(msg->port)); 840 msg->hdr.msg_type = CTL_MSG_PORT_SYNC; 841 msg->hdr.nexus.targ_port = port->targ_port; 842 msg->port.port_type = port->port_type; 843 msg->port.physical_port = port->physical_port; 844 msg->port.virtual_port = port->virtual_port; 845 msg->port.status = port->status; 846 i = 0; 847 msg->port.name_len = sprintf(&msg->port.data[i], 848 "%d:%s", softc->ha_id, port->port_name) + 1; 849 i += msg->port.name_len; 850 if (port->lun_map) { 851 msg->port.lun_map_len = sizeof(uint32_t) * CTL_MAX_LUNS; 852 memcpy(&msg->port.data[i], port->lun_map, 853 msg->port.lun_map_len); 854 i += msg->port.lun_map_len; 855 } 856 if (port->port_devid) { 857 msg->port.port_devid_len = port->port_devid->len; 858 memcpy(&msg->port.data[i], port->port_devid->data, 859 msg->port.port_devid_len); 860 i += msg->port.port_devid_len; 861 } 862 if (port->target_devid) { 863 msg->port.target_devid_len = port->target_devid->len; 864 memcpy(&msg->port.data[i], port->target_devid->data, 865 msg->port.target_devid_len); 866 i += msg->port.target_devid_len; 867 } 868 if (port->init_devid) { 869 msg->port.init_devid_len = port->init_devid->len; 870 memcpy(&msg->port.data[i], port->init_devid->data, 871 msg->port.init_devid_len); 872 i += msg->port.init_devid_len; 873 } 874 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg->port, sizeof(msg->port) + i, 875 M_WAITOK); 876 free(msg, M_CTL); 877} 878 879void 880ctl_isc_announce_iid(struct ctl_port *port, int iid) 881{ 882 struct ctl_softc *softc = port->ctl_softc; 883 union ctl_ha_msg *msg; 884 int i, l; 885 886 if (port->targ_port < softc->port_min || 887 port->targ_port >= softc->port_max || 888 softc->ha_link != CTL_HA_LINK_ONLINE) 889 return; 890 mtx_lock(&softc->ctl_lock); 891 i = sizeof(msg->iid); 892 l = 0; 893 if (port->wwpn_iid[iid].name) 894 l = strlen(port->wwpn_iid[iid].name) + 1; 895 i += l; 896 msg = malloc(i, M_CTL, M_NOWAIT); 897 if (msg == NULL) { 898 mtx_unlock(&softc->ctl_lock); 899 return; 900 } 901 bzero(&msg->iid, sizeof(msg->iid)); 902 msg->hdr.msg_type = CTL_MSG_IID_SYNC; 903 msg->hdr.nexus.targ_port = port->targ_port; 904 msg->hdr.nexus.initid = iid; 905 msg->iid.in_use = port->wwpn_iid[iid].in_use; 906 msg->iid.name_len = l; 907 msg->iid.wwpn = port->wwpn_iid[iid].wwpn; 908 if (port->wwpn_iid[iid].name) 909 strlcpy(msg->iid.data, port->wwpn_iid[iid].name, l); 910 mtx_unlock(&softc->ctl_lock); 911 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg->iid, i, M_NOWAIT); 912 free(msg, M_CTL); 913} 914 915void 916ctl_isc_announce_mode(struct ctl_lun *lun, uint32_t initidx, 917 uint8_t page, uint8_t subpage) 918{ 919 struct ctl_softc *softc = lun->ctl_softc; 920 union ctl_ha_msg msg; 921 u_int i; 922 923 if (softc->ha_link != CTL_HA_LINK_ONLINE) 924 return; 925 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 926 if ((lun->mode_pages.index[i].page_code & SMPH_PC_MASK) == 927 page && lun->mode_pages.index[i].subpage == subpage) 928 break; 929 } 930 if (i == CTL_NUM_MODE_PAGES) 931 return; 932 933 /* Don't try to replicate pages not present on this device. */ 934 if (lun->mode_pages.index[i].page_data == NULL) 935 return; 936 937 bzero(&msg.mode, sizeof(msg.mode)); 938 msg.hdr.msg_type = CTL_MSG_MODE_SYNC; 939 msg.hdr.nexus.targ_port = initidx / CTL_MAX_INIT_PER_PORT; 940 msg.hdr.nexus.initid = initidx % CTL_MAX_INIT_PER_PORT; 941 msg.hdr.nexus.targ_lun = lun->lun; 942 msg.hdr.nexus.targ_mapped_lun = lun->lun; 943 msg.mode.page_code = page; 944 msg.mode.subpage = subpage; 945 msg.mode.page_len = lun->mode_pages.index[i].page_len; 946 memcpy(msg.mode.data, lun->mode_pages.index[i].page_data, 947 msg.mode.page_len); 948 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg.mode, sizeof(msg.mode), 949 M_WAITOK); 950} 951 952static void 953ctl_isc_ha_link_up(struct ctl_softc *softc) 954{ 955 struct ctl_port *port; 956 struct ctl_lun *lun; 957 union ctl_ha_msg msg; 958 int i; 959 960 /* Announce this node parameters to peer for validation. */ 961 msg.login.msg_type = CTL_MSG_LOGIN; 962 msg.login.version = CTL_HA_VERSION; 963 msg.login.ha_mode = softc->ha_mode; 964 msg.login.ha_id = softc->ha_id; 965 msg.login.max_luns = CTL_MAX_LUNS; 966 msg.login.max_ports = CTL_MAX_PORTS; 967 msg.login.max_init_per_port = CTL_MAX_INIT_PER_PORT; 968 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg.login, sizeof(msg.login), 969 M_WAITOK); 970 971 STAILQ_FOREACH(port, &softc->port_list, links) { 972 ctl_isc_announce_port(port); 973 for (i = 0; i < CTL_MAX_INIT_PER_PORT; i++) { 974 if (port->wwpn_iid[i].in_use) 975 ctl_isc_announce_iid(port, i); 976 } 977 } 978 STAILQ_FOREACH(lun, &softc->lun_list, links) 979 ctl_isc_announce_lun(lun); 980} 981 982static void 983ctl_isc_ha_link_down(struct ctl_softc *softc) 984{ 985 struct ctl_port *port; 986 struct ctl_lun *lun; 987 union ctl_io *io; 988 int i; 989 990 mtx_lock(&softc->ctl_lock); 991 STAILQ_FOREACH(lun, &softc->lun_list, links) { 992 mtx_lock(&lun->lun_lock); 993 if (lun->flags & CTL_LUN_PEER_SC_PRIMARY) { 994 lun->flags &= ~CTL_LUN_PEER_SC_PRIMARY; 995 ctl_est_ua_all(lun, -1, CTL_UA_ASYM_ACC_CHANGE); 996 } 997 mtx_unlock(&lun->lun_lock); 998 999 mtx_unlock(&softc->ctl_lock); 1000 io = ctl_alloc_io(softc->othersc_pool); 1001 mtx_lock(&softc->ctl_lock); 1002 ctl_zero_io(io); 1003 io->io_hdr.msg_type = CTL_MSG_FAILOVER; 1004 io->io_hdr.nexus.targ_mapped_lun = lun->lun; 1005 ctl_enqueue_isc(io); 1006 } 1007 1008 STAILQ_FOREACH(port, &softc->port_list, links) { 1009 if (port->targ_port >= softc->port_min && 1010 port->targ_port < softc->port_max) 1011 continue; 1012 port->status &= ~CTL_PORT_STATUS_ONLINE; 1013 for (i = 0; i < CTL_MAX_INIT_PER_PORT; i++) { 1014 port->wwpn_iid[i].in_use = 0; 1015 free(port->wwpn_iid[i].name, M_CTL); 1016 port->wwpn_iid[i].name = NULL; 1017 } 1018 } 1019 mtx_unlock(&softc->ctl_lock); 1020} 1021 1022static void 1023ctl_isc_ua(struct ctl_softc *softc, union ctl_ha_msg *msg, int len) 1024{ 1025 struct ctl_lun *lun; 1026 uint32_t iid = ctl_get_initindex(&msg->hdr.nexus); 1027 1028 mtx_lock(&softc->ctl_lock); 1029 if (msg->hdr.nexus.targ_lun < CTL_MAX_LUNS && 1030 (lun = softc->ctl_luns[msg->hdr.nexus.targ_mapped_lun]) != NULL) { 1031 mtx_lock(&lun->lun_lock); 1032 mtx_unlock(&softc->ctl_lock); 1033 if (msg->ua.ua_type == CTL_UA_THIN_PROV_THRES && 1034 msg->ua.ua_set) 1035 memcpy(lun->ua_tpt_info, msg->ua.ua_info, 8); 1036 if (msg->ua.ua_all) { 1037 if (msg->ua.ua_set) 1038 ctl_est_ua_all(lun, iid, msg->ua.ua_type); 1039 else 1040 ctl_clr_ua_all(lun, iid, msg->ua.ua_type); 1041 } else { 1042 if (msg->ua.ua_set) 1043 ctl_est_ua(lun, iid, msg->ua.ua_type); 1044 else 1045 ctl_clr_ua(lun, iid, msg->ua.ua_type); 1046 } 1047 mtx_unlock(&lun->lun_lock); 1048 } else 1049 mtx_unlock(&softc->ctl_lock); 1050} 1051 1052static void 1053ctl_isc_lun_sync(struct ctl_softc *softc, union ctl_ha_msg *msg, int len) 1054{ 1055 struct ctl_lun *lun; 1056 struct ctl_ha_msg_lun_pr_key pr_key; 1057 int i, k; 1058 ctl_lun_flags oflags; 1059 uint32_t targ_lun; 1060 1061 targ_lun = msg->hdr.nexus.targ_mapped_lun; 1062 mtx_lock(&softc->ctl_lock); 1063 if ((targ_lun >= CTL_MAX_LUNS) || 1064 ((lun = softc->ctl_luns[targ_lun]) == NULL)) { 1065 mtx_unlock(&softc->ctl_lock); 1066 return; 1067 } 1068 mtx_lock(&lun->lun_lock); 1069 mtx_unlock(&softc->ctl_lock); 1070 if (lun->flags & CTL_LUN_DISABLED) { 1071 mtx_unlock(&lun->lun_lock); 1072 return; 1073 } 1074 i = (lun->lun_devid != NULL) ? lun->lun_devid->len : 0; 1075 if (msg->lun.lun_devid_len != i || (i > 0 && 1076 memcmp(&msg->lun.data[0], lun->lun_devid->data, i) != 0)) { 1077 mtx_unlock(&lun->lun_lock); 1078 printf("%s: Received conflicting HA LUN %d\n", 1079 __func__, msg->hdr.nexus.targ_lun); 1080 return; 1081 } else { 1082 /* Record whether peer is primary. */ 1083 oflags = lun->flags; 1084 if ((msg->lun.flags & CTL_LUN_PRIMARY_SC) && 1085 (msg->lun.flags & CTL_LUN_DISABLED) == 0) 1086 lun->flags |= CTL_LUN_PEER_SC_PRIMARY; 1087 else 1088 lun->flags &= ~CTL_LUN_PEER_SC_PRIMARY; 1089 if (oflags != lun->flags) 1090 ctl_est_ua_all(lun, -1, CTL_UA_ASYM_ACC_CHANGE); 1091 1092 /* If peer is primary and we are not -- use data */ 1093 if ((lun->flags & CTL_LUN_PRIMARY_SC) == 0 && 1094 (lun->flags & CTL_LUN_PEER_SC_PRIMARY)) { 1095 lun->pr_generation = msg->lun.pr_generation; 1096 lun->pr_res_idx = msg->lun.pr_res_idx; 1097 lun->pr_res_type = msg->lun.pr_res_type; 1098 lun->pr_key_count = msg->lun.pr_key_count; 1099 for (k = 0; k < CTL_MAX_INITIATORS; k++) 1100 ctl_clr_prkey(lun, k); 1101 for (k = 0; k < msg->lun.pr_key_count; k++) { 1102 memcpy(&pr_key, &msg->lun.data[i], 1103 sizeof(pr_key)); 1104 ctl_alloc_prkey(lun, pr_key.pr_iid); 1105 ctl_set_prkey(lun, pr_key.pr_iid, 1106 pr_key.pr_key); 1107 i += sizeof(pr_key); 1108 } 1109 } 1110 1111 mtx_unlock(&lun->lun_lock); 1112 CTL_DEBUG_PRINT(("%s: Known LUN %d, peer is %s\n", 1113 __func__, msg->hdr.nexus.targ_lun, 1114 (msg->lun.flags & CTL_LUN_PRIMARY_SC) ? 1115 "primary" : "secondary")); 1116 1117 /* If we are primary but peer doesn't know -- notify */ 1118 if ((lun->flags & CTL_LUN_PRIMARY_SC) && 1119 (msg->lun.flags & CTL_LUN_PEER_SC_PRIMARY) == 0) 1120 ctl_isc_announce_lun(lun); 1121 } 1122} 1123 1124static void 1125ctl_isc_port_sync(struct ctl_softc *softc, union ctl_ha_msg *msg, int len) 1126{ 1127 struct ctl_port *port; 1128 struct ctl_lun *lun; 1129 int i, new; 1130 1131 port = softc->ctl_ports[msg->hdr.nexus.targ_port]; 1132 if (port == NULL) { 1133 CTL_DEBUG_PRINT(("%s: New port %d\n", __func__, 1134 msg->hdr.nexus.targ_port)); 1135 new = 1; 1136 port = malloc(sizeof(*port), M_CTL, M_WAITOK | M_ZERO); 1137 port->frontend = &ha_frontend; 1138 port->targ_port = msg->hdr.nexus.targ_port; 1139 port->fe_datamove = ctl_ha_datamove; 1140 port->fe_done = ctl_ha_done; 1141 } else if (port->frontend == &ha_frontend) { 1142 CTL_DEBUG_PRINT(("%s: Updated port %d\n", __func__, 1143 msg->hdr.nexus.targ_port)); 1144 new = 0; 1145 } else { 1146 printf("%s: Received conflicting HA port %d\n", 1147 __func__, msg->hdr.nexus.targ_port); 1148 return; 1149 } 1150 port->port_type = msg->port.port_type; 1151 port->physical_port = msg->port.physical_port; 1152 port->virtual_port = msg->port.virtual_port; 1153 port->status = msg->port.status; 1154 i = 0; 1155 free(port->port_name, M_CTL); 1156 port->port_name = strndup(&msg->port.data[i], msg->port.name_len, 1157 M_CTL); 1158 i += msg->port.name_len; 1159 if (msg->port.lun_map_len != 0) { 1160 if (port->lun_map == NULL) 1161 port->lun_map = malloc(sizeof(uint32_t) * CTL_MAX_LUNS, 1162 M_CTL, M_WAITOK); 1163 memcpy(port->lun_map, &msg->port.data[i], 1164 sizeof(uint32_t) * CTL_MAX_LUNS); 1165 i += msg->port.lun_map_len; 1166 } else { 1167 free(port->lun_map, M_CTL); 1168 port->lun_map = NULL; 1169 } 1170 if (msg->port.port_devid_len != 0) { 1171 if (port->port_devid == NULL || 1172 port->port_devid->len != msg->port.port_devid_len) { 1173 free(port->port_devid, M_CTL); 1174 port->port_devid = malloc(sizeof(struct ctl_devid) + 1175 msg->port.port_devid_len, M_CTL, M_WAITOK); 1176 } 1177 memcpy(port->port_devid->data, &msg->port.data[i], 1178 msg->port.port_devid_len); 1179 port->port_devid->len = msg->port.port_devid_len; 1180 i += msg->port.port_devid_len; 1181 } else { 1182 free(port->port_devid, M_CTL); 1183 port->port_devid = NULL; 1184 } 1185 if (msg->port.target_devid_len != 0) { 1186 if (port->target_devid == NULL || 1187 port->target_devid->len != msg->port.target_devid_len) { 1188 free(port->target_devid, M_CTL); 1189 port->target_devid = malloc(sizeof(struct ctl_devid) + 1190 msg->port.target_devid_len, M_CTL, M_WAITOK); 1191 } 1192 memcpy(port->target_devid->data, &msg->port.data[i], 1193 msg->port.target_devid_len); 1194 port->target_devid->len = msg->port.target_devid_len; 1195 i += msg->port.target_devid_len; 1196 } else { 1197 free(port->target_devid, M_CTL); 1198 port->target_devid = NULL; 1199 } 1200 if (msg->port.init_devid_len != 0) { 1201 if (port->init_devid == NULL || 1202 port->init_devid->len != msg->port.init_devid_len) { 1203 free(port->init_devid, M_CTL); 1204 port->init_devid = malloc(sizeof(struct ctl_devid) + 1205 msg->port.init_devid_len, M_CTL, M_WAITOK); 1206 } 1207 memcpy(port->init_devid->data, &msg->port.data[i], 1208 msg->port.init_devid_len); 1209 port->init_devid->len = msg->port.init_devid_len; 1210 i += msg->port.init_devid_len; 1211 } else { 1212 free(port->init_devid, M_CTL); 1213 port->init_devid = NULL; 1214 } 1215 if (new) { 1216 if (ctl_port_register(port) != 0) { 1217 printf("%s: ctl_port_register() failed with error\n", 1218 __func__); 1219 } 1220 } 1221 mtx_lock(&softc->ctl_lock); 1222 STAILQ_FOREACH(lun, &softc->lun_list, links) { 1223 if (ctl_lun_map_to_port(port, lun->lun) >= CTL_MAX_LUNS) 1224 continue; 1225 mtx_lock(&lun->lun_lock); 1226 ctl_est_ua_all(lun, -1, CTL_UA_INQ_CHANGE); 1227 mtx_unlock(&lun->lun_lock); 1228 } 1229 mtx_unlock(&softc->ctl_lock); 1230} 1231 1232static void 1233ctl_isc_iid_sync(struct ctl_softc *softc, union ctl_ha_msg *msg, int len) 1234{ 1235 struct ctl_port *port; 1236 int iid; 1237 1238 port = softc->ctl_ports[msg->hdr.nexus.targ_port]; 1239 if (port == NULL) { 1240 printf("%s: Received IID for unknown port %d\n", 1241 __func__, msg->hdr.nexus.targ_port); 1242 return; 1243 } 1244 iid = msg->hdr.nexus.initid; 1245 port->wwpn_iid[iid].in_use = msg->iid.in_use; 1246 port->wwpn_iid[iid].wwpn = msg->iid.wwpn; 1247 free(port->wwpn_iid[iid].name, M_CTL); 1248 if (msg->iid.name_len) { 1249 port->wwpn_iid[iid].name = strndup(&msg->iid.data[0], 1250 msg->iid.name_len, M_CTL); 1251 } else 1252 port->wwpn_iid[iid].name = NULL; 1253} 1254 1255static void 1256ctl_isc_login(struct ctl_softc *softc, union ctl_ha_msg *msg, int len) 1257{ 1258 1259 if (msg->login.version != CTL_HA_VERSION) { 1260 printf("CTL HA peers have different versions %d != %d\n", 1261 msg->login.version, CTL_HA_VERSION); 1262 ctl_ha_msg_abort(CTL_HA_CHAN_CTL); 1263 return; 1264 } 1265 if (msg->login.ha_mode != softc->ha_mode) { 1266 printf("CTL HA peers have different ha_mode %d != %d\n", 1267 msg->login.ha_mode, softc->ha_mode); 1268 ctl_ha_msg_abort(CTL_HA_CHAN_CTL); 1269 return; 1270 } 1271 if (msg->login.ha_id == softc->ha_id) { 1272 printf("CTL HA peers have same ha_id %d\n", msg->login.ha_id); 1273 ctl_ha_msg_abort(CTL_HA_CHAN_CTL); 1274 return; 1275 } 1276 if (msg->login.max_luns != CTL_MAX_LUNS || 1277 msg->login.max_ports != CTL_MAX_PORTS || 1278 msg->login.max_init_per_port != CTL_MAX_INIT_PER_PORT) { 1279 printf("CTL HA peers have different limits\n"); 1280 ctl_ha_msg_abort(CTL_HA_CHAN_CTL); 1281 return; 1282 } 1283} 1284 1285static void 1286ctl_isc_mode_sync(struct ctl_softc *softc, union ctl_ha_msg *msg, int len) 1287{ 1288 struct ctl_lun *lun; 1289 u_int i; 1290 uint32_t initidx, targ_lun; 1291 1292 targ_lun = msg->hdr.nexus.targ_mapped_lun; 1293 mtx_lock(&softc->ctl_lock); 1294 if ((targ_lun >= CTL_MAX_LUNS) || 1295 ((lun = softc->ctl_luns[targ_lun]) == NULL)) { 1296 mtx_unlock(&softc->ctl_lock); 1297 return; 1298 } 1299 mtx_lock(&lun->lun_lock); 1300 mtx_unlock(&softc->ctl_lock); 1301 if (lun->flags & CTL_LUN_DISABLED) { 1302 mtx_unlock(&lun->lun_lock); 1303 return; 1304 } 1305 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 1306 if ((lun->mode_pages.index[i].page_code & SMPH_PC_MASK) == 1307 msg->mode.page_code && 1308 lun->mode_pages.index[i].subpage == msg->mode.subpage) 1309 break; 1310 } 1311 if (i == CTL_NUM_MODE_PAGES) { 1312 mtx_unlock(&lun->lun_lock); 1313 return; 1314 } 1315 memcpy(lun->mode_pages.index[i].page_data, msg->mode.data, 1316 lun->mode_pages.index[i].page_len); 1317 initidx = ctl_get_initindex(&msg->hdr.nexus); 1318 if (initidx != -1) 1319 ctl_est_ua_all(lun, initidx, CTL_UA_MODE_CHANGE); 1320 mtx_unlock(&lun->lun_lock); 1321} 1322 1323/* 1324 * ISC (Inter Shelf Communication) event handler. Events from the HA 1325 * subsystem come in here. 1326 */ 1327static void 1328ctl_isc_event_handler(ctl_ha_channel channel, ctl_ha_event event, int param) 1329{ 1330 struct ctl_softc *softc = control_softc; 1331 union ctl_io *io; 1332 struct ctl_prio *presio; 1333 ctl_ha_status isc_status; 1334 1335 CTL_DEBUG_PRINT(("CTL: Isc Msg event %d\n", event)); 1336 if (event == CTL_HA_EVT_MSG_RECV) { 1337 union ctl_ha_msg *msg, msgbuf; 1338 1339 if (param > sizeof(msgbuf)) 1340 msg = malloc(param, M_CTL, M_WAITOK); 1341 else 1342 msg = &msgbuf; 1343 isc_status = ctl_ha_msg_recv(CTL_HA_CHAN_CTL, msg, param, 1344 M_WAITOK); 1345 if (isc_status != CTL_HA_STATUS_SUCCESS) { 1346 printf("%s: Error receiving message: %d\n", 1347 __func__, isc_status); 1348 if (msg != &msgbuf) 1349 free(msg, M_CTL); 1350 return; 1351 } 1352 1353 CTL_DEBUG_PRINT(("CTL: msg_type %d\n", msg->msg_type)); 1354 switch (msg->hdr.msg_type) { 1355 case CTL_MSG_SERIALIZE: 1356 io = ctl_alloc_io(softc->othersc_pool); 1357 ctl_zero_io(io); 1358 // populate ctsio from msg 1359 io->io_hdr.io_type = CTL_IO_SCSI; 1360 io->io_hdr.msg_type = CTL_MSG_SERIALIZE; 1361 io->io_hdr.original_sc = msg->hdr.original_sc; 1362 io->io_hdr.flags |= CTL_FLAG_FROM_OTHER_SC | 1363 CTL_FLAG_IO_ACTIVE; 1364 /* 1365 * If we're in serialization-only mode, we don't 1366 * want to go through full done processing. Thus 1367 * the COPY flag. 1368 * 1369 * XXX KDM add another flag that is more specific. 1370 */ 1371 if (softc->ha_mode != CTL_HA_MODE_XFER) 1372 io->io_hdr.flags |= CTL_FLAG_INT_COPY; 1373 io->io_hdr.nexus = msg->hdr.nexus; 1374#if 0 1375 printf("port %u, iid %u, lun %u\n", 1376 io->io_hdr.nexus.targ_port, 1377 io->io_hdr.nexus.initid, 1378 io->io_hdr.nexus.targ_lun); 1379#endif 1380 io->scsiio.tag_num = msg->scsi.tag_num; 1381 io->scsiio.tag_type = msg->scsi.tag_type; 1382#ifdef CTL_TIME_IO 1383 io->io_hdr.start_time = time_uptime; 1384 getbinuptime(&io->io_hdr.start_bt); 1385#endif /* CTL_TIME_IO */ 1386 io->scsiio.cdb_len = msg->scsi.cdb_len; 1387 memcpy(io->scsiio.cdb, msg->scsi.cdb, 1388 CTL_MAX_CDBLEN); 1389 if (softc->ha_mode == CTL_HA_MODE_XFER) { 1390 const struct ctl_cmd_entry *entry; 1391 1392 entry = ctl_get_cmd_entry(&io->scsiio, NULL); 1393 io->io_hdr.flags &= ~CTL_FLAG_DATA_MASK; 1394 io->io_hdr.flags |= 1395 entry->flags & CTL_FLAG_DATA_MASK; 1396 } 1397 ctl_enqueue_isc(io); 1398 break; 1399 1400 /* Performed on the Originating SC, XFER mode only */ 1401 case CTL_MSG_DATAMOVE: { 1402 struct ctl_sg_entry *sgl; 1403 int i, j; 1404 1405 io = msg->hdr.original_sc; 1406 if (io == NULL) { 1407 printf("%s: original_sc == NULL!\n", __func__); 1408 /* XXX KDM do something here */ 1409 break; 1410 } 1411 io->io_hdr.msg_type = CTL_MSG_DATAMOVE; 1412 io->io_hdr.flags |= CTL_FLAG_IO_ACTIVE; 1413 /* 1414 * Keep track of this, we need to send it back over 1415 * when the datamove is complete. 1416 */ 1417 io->io_hdr.serializing_sc = msg->hdr.serializing_sc; 1418 if (msg->hdr.status == CTL_SUCCESS) 1419 io->io_hdr.status = msg->hdr.status; 1420 1421 if (msg->dt.sg_sequence == 0) { 1422#ifdef CTL_TIME_IO 1423 getbinuptime(&io->io_hdr.dma_start_bt); 1424#endif 1425 i = msg->dt.kern_sg_entries + 1426 msg->dt.kern_data_len / 1427 CTL_HA_DATAMOVE_SEGMENT + 1; 1428 sgl = malloc(sizeof(*sgl) * i, M_CTL, 1429 M_WAITOK | M_ZERO); 1430 io->io_hdr.remote_sglist = sgl; 1431 io->io_hdr.local_sglist = 1432 &sgl[msg->dt.kern_sg_entries]; 1433 1434 io->scsiio.kern_data_ptr = (uint8_t *)sgl; 1435 1436 io->scsiio.kern_sg_entries = 1437 msg->dt.kern_sg_entries; 1438 io->scsiio.rem_sg_entries = 1439 msg->dt.kern_sg_entries; 1440 io->scsiio.kern_data_len = 1441 msg->dt.kern_data_len; 1442 io->scsiio.kern_total_len = 1443 msg->dt.kern_total_len; 1444 io->scsiio.kern_data_resid = 1445 msg->dt.kern_data_resid; 1446 io->scsiio.kern_rel_offset = 1447 msg->dt.kern_rel_offset; 1448 io->io_hdr.flags &= ~CTL_FLAG_BUS_ADDR; 1449 io->io_hdr.flags |= msg->dt.flags & 1450 CTL_FLAG_BUS_ADDR; 1451 } else 1452 sgl = (struct ctl_sg_entry *) 1453 io->scsiio.kern_data_ptr; 1454 1455 for (i = msg->dt.sent_sg_entries, j = 0; 1456 i < (msg->dt.sent_sg_entries + 1457 msg->dt.cur_sg_entries); i++, j++) { 1458 sgl[i].addr = msg->dt.sg_list[j].addr; 1459 sgl[i].len = msg->dt.sg_list[j].len; 1460 1461#if 0 1462 printf("%s: DATAMOVE: %p,%lu j=%d, i=%d\n", 1463 __func__, sgl[i].addr, sgl[i].len, j, i); 1464#endif 1465 } 1466 1467 /* 1468 * If this is the last piece of the I/O, we've got 1469 * the full S/G list. Queue processing in the thread. 1470 * Otherwise wait for the next piece. 1471 */ 1472 if (msg->dt.sg_last != 0) 1473 ctl_enqueue_isc(io); 1474 break; 1475 } 1476 /* Performed on the Serializing (primary) SC, XFER mode only */ 1477 case CTL_MSG_DATAMOVE_DONE: { 1478 if (msg->hdr.serializing_sc == NULL) { 1479 printf("%s: serializing_sc == NULL!\n", 1480 __func__); 1481 /* XXX KDM now what? */ 1482 break; 1483 } 1484 /* 1485 * We grab the sense information here in case 1486 * there was a failure, so we can return status 1487 * back to the initiator. 1488 */ 1489 io = msg->hdr.serializing_sc; 1490 io->io_hdr.msg_type = CTL_MSG_DATAMOVE_DONE; 1491 io->io_hdr.flags &= ~CTL_FLAG_DMA_INPROG; 1492 io->io_hdr.flags |= CTL_FLAG_IO_ACTIVE; 1493 io->io_hdr.port_status = msg->scsi.fetd_status; 1494 io->scsiio.residual = msg->scsi.residual; 1495 if (msg->hdr.status != CTL_STATUS_NONE) { 1496 io->io_hdr.status = msg->hdr.status; 1497 io->scsiio.scsi_status = msg->scsi.scsi_status; 1498 io->scsiio.sense_len = msg->scsi.sense_len; 1499 io->scsiio.sense_residual =msg->scsi.sense_residual; 1500 memcpy(&io->scsiio.sense_data, 1501 &msg->scsi.sense_data, 1502 msg->scsi.sense_len); 1503 if (msg->hdr.status == CTL_SUCCESS) 1504 io->io_hdr.flags |= CTL_FLAG_STATUS_SENT; 1505 } 1506 ctl_enqueue_isc(io); 1507 break; 1508 } 1509 1510 /* Preformed on Originating SC, SER_ONLY mode */ 1511 case CTL_MSG_R2R: 1512 io = msg->hdr.original_sc; 1513 if (io == NULL) { 1514 printf("%s: original_sc == NULL!\n", 1515 __func__); 1516 break; 1517 } 1518 io->io_hdr.flags |= CTL_FLAG_IO_ACTIVE; 1519 io->io_hdr.msg_type = CTL_MSG_R2R; 1520 io->io_hdr.serializing_sc = msg->hdr.serializing_sc; 1521 ctl_enqueue_isc(io); 1522 break; 1523 1524 /* 1525 * Performed on Serializing(i.e. primary SC) SC in SER_ONLY 1526 * mode. 1527 * Performed on the Originating (i.e. secondary) SC in XFER 1528 * mode 1529 */ 1530 case CTL_MSG_FINISH_IO: 1531 if (softc->ha_mode == CTL_HA_MODE_XFER) 1532 ctl_isc_handler_finish_xfer(softc, msg); 1533 else 1534 ctl_isc_handler_finish_ser_only(softc, msg); 1535 break; 1536 1537 /* Preformed on Originating SC */ 1538 case CTL_MSG_BAD_JUJU: 1539 io = msg->hdr.original_sc; 1540 if (io == NULL) { 1541 printf("%s: Bad JUJU!, original_sc is NULL!\n", 1542 __func__); 1543 break; 1544 } 1545 ctl_copy_sense_data(msg, io); 1546 /* 1547 * IO should have already been cleaned up on other 1548 * SC so clear this flag so we won't send a message 1549 * back to finish the IO there. 1550 */ 1551 io->io_hdr.flags &= ~CTL_FLAG_SENT_2OTHER_SC; 1552 io->io_hdr.flags |= CTL_FLAG_IO_ACTIVE; 1553 1554 /* io = msg->hdr.serializing_sc; */ 1555 io->io_hdr.msg_type = CTL_MSG_BAD_JUJU; 1556 ctl_enqueue_isc(io); 1557 break; 1558 1559 /* Handle resets sent from the other side */ 1560 case CTL_MSG_MANAGE_TASKS: { 1561 struct ctl_taskio *taskio; 1562 taskio = (struct ctl_taskio *)ctl_alloc_io( 1563 softc->othersc_pool); 1564 ctl_zero_io((union ctl_io *)taskio); 1565 taskio->io_hdr.io_type = CTL_IO_TASK; 1566 taskio->io_hdr.flags |= CTL_FLAG_FROM_OTHER_SC; 1567 taskio->io_hdr.nexus = msg->hdr.nexus; 1568 taskio->task_action = msg->task.task_action; 1569 taskio->tag_num = msg->task.tag_num; 1570 taskio->tag_type = msg->task.tag_type; 1571#ifdef CTL_TIME_IO 1572 taskio->io_hdr.start_time = time_uptime; 1573 getbinuptime(&taskio->io_hdr.start_bt); 1574#endif /* CTL_TIME_IO */ 1575 ctl_run_task((union ctl_io *)taskio); 1576 break; 1577 } 1578 /* Persistent Reserve action which needs attention */ 1579 case CTL_MSG_PERS_ACTION: 1580 presio = (struct ctl_prio *)ctl_alloc_io( 1581 softc->othersc_pool); 1582 ctl_zero_io((union ctl_io *)presio); 1583 presio->io_hdr.msg_type = CTL_MSG_PERS_ACTION; 1584 presio->io_hdr.flags |= CTL_FLAG_FROM_OTHER_SC; 1585 presio->io_hdr.nexus = msg->hdr.nexus; 1586 presio->pr_msg = msg->pr; 1587 ctl_enqueue_isc((union ctl_io *)presio); 1588 break; 1589 case CTL_MSG_UA: 1590 ctl_isc_ua(softc, msg, param); 1591 break; 1592 case CTL_MSG_PORT_SYNC: 1593 ctl_isc_port_sync(softc, msg, param); 1594 break; 1595 case CTL_MSG_LUN_SYNC: 1596 ctl_isc_lun_sync(softc, msg, param); 1597 break; 1598 case CTL_MSG_IID_SYNC: 1599 ctl_isc_iid_sync(softc, msg, param); 1600 break; 1601 case CTL_MSG_LOGIN: 1602 ctl_isc_login(softc, msg, param); 1603 break; 1604 case CTL_MSG_MODE_SYNC: 1605 ctl_isc_mode_sync(softc, msg, param); 1606 break; 1607 default: 1608 printf("Received HA message of unknown type %d\n", 1609 msg->hdr.msg_type); 1610 ctl_ha_msg_abort(CTL_HA_CHAN_CTL); 1611 break; 1612 } 1613 if (msg != &msgbuf) 1614 free(msg, M_CTL); 1615 } else if (event == CTL_HA_EVT_LINK_CHANGE) { 1616 printf("CTL: HA link status changed from %d to %d\n", 1617 softc->ha_link, param); 1618 if (param == softc->ha_link) 1619 return; 1620 if (softc->ha_link == CTL_HA_LINK_ONLINE) { 1621 softc->ha_link = param; 1622 ctl_isc_ha_link_down(softc); 1623 } else { 1624 softc->ha_link = param; 1625 if (softc->ha_link == CTL_HA_LINK_ONLINE) 1626 ctl_isc_ha_link_up(softc); 1627 } 1628 return; 1629 } else { 1630 printf("ctl_isc_event_handler: Unknown event %d\n", event); 1631 return; 1632 } 1633} 1634 1635static void 1636ctl_copy_sense_data(union ctl_ha_msg *src, union ctl_io *dest) 1637{ 1638 1639 memcpy(&dest->scsiio.sense_data, &src->scsi.sense_data, 1640 src->scsi.sense_len); 1641 dest->scsiio.scsi_status = src->scsi.scsi_status; 1642 dest->scsiio.sense_len = src->scsi.sense_len; 1643 dest->io_hdr.status = src->hdr.status; 1644} 1645 1646static void 1647ctl_copy_sense_data_back(union ctl_io *src, union ctl_ha_msg *dest) 1648{ 1649 1650 memcpy(&dest->scsi.sense_data, &src->scsiio.sense_data, 1651 src->scsiio.sense_len); 1652 dest->scsi.scsi_status = src->scsiio.scsi_status; 1653 dest->scsi.sense_len = src->scsiio.sense_len; 1654 dest->hdr.status = src->io_hdr.status; 1655} 1656 1657void 1658ctl_est_ua(struct ctl_lun *lun, uint32_t initidx, ctl_ua_type ua) 1659{ 1660 struct ctl_softc *softc = lun->ctl_softc; 1661 ctl_ua_type *pu; 1662 1663 if (initidx < softc->init_min || initidx >= softc->init_max) 1664 return; 1665 mtx_assert(&lun->lun_lock, MA_OWNED); 1666 pu = lun->pending_ua[initidx / CTL_MAX_INIT_PER_PORT]; 1667 if (pu == NULL) 1668 return; 1669 pu[initidx % CTL_MAX_INIT_PER_PORT] |= ua; 1670} 1671 1672void 1673ctl_est_ua_port(struct ctl_lun *lun, int port, uint32_t except, ctl_ua_type ua) 1674{ 1675 int i; 1676 1677 mtx_assert(&lun->lun_lock, MA_OWNED); 1678 if (lun->pending_ua[port] == NULL) 1679 return; 1680 for (i = 0; i < CTL_MAX_INIT_PER_PORT; i++) { 1681 if (port * CTL_MAX_INIT_PER_PORT + i == except) 1682 continue; 1683 lun->pending_ua[port][i] |= ua; 1684 } 1685} 1686 1687void 1688ctl_est_ua_all(struct ctl_lun *lun, uint32_t except, ctl_ua_type ua) 1689{ 1690 struct ctl_softc *softc = lun->ctl_softc; 1691 int i; 1692 1693 mtx_assert(&lun->lun_lock, MA_OWNED); 1694 for (i = softc->port_min; i < softc->port_max; i++) 1695 ctl_est_ua_port(lun, i, except, ua); 1696} 1697 1698void 1699ctl_clr_ua(struct ctl_lun *lun, uint32_t initidx, ctl_ua_type ua) 1700{ 1701 struct ctl_softc *softc = lun->ctl_softc; 1702 ctl_ua_type *pu; 1703 1704 if (initidx < softc->init_min || initidx >= softc->init_max) 1705 return; 1706 mtx_assert(&lun->lun_lock, MA_OWNED); 1707 pu = lun->pending_ua[initidx / CTL_MAX_INIT_PER_PORT]; 1708 if (pu == NULL) 1709 return; 1710 pu[initidx % CTL_MAX_INIT_PER_PORT] &= ~ua; 1711} 1712 1713void 1714ctl_clr_ua_all(struct ctl_lun *lun, uint32_t except, ctl_ua_type ua) 1715{ 1716 struct ctl_softc *softc = lun->ctl_softc; 1717 int i, j; 1718 1719 mtx_assert(&lun->lun_lock, MA_OWNED); 1720 for (i = softc->port_min; i < softc->port_max; i++) { 1721 if (lun->pending_ua[i] == NULL) 1722 continue; 1723 for (j = 0; j < CTL_MAX_INIT_PER_PORT; j++) { 1724 if (i * CTL_MAX_INIT_PER_PORT + j == except) 1725 continue; 1726 lun->pending_ua[i][j] &= ~ua; 1727 } 1728 } 1729} 1730 1731void 1732ctl_clr_ua_allluns(struct ctl_softc *ctl_softc, uint32_t initidx, 1733 ctl_ua_type ua_type) 1734{ 1735 struct ctl_lun *lun; 1736 1737 mtx_assert(&ctl_softc->ctl_lock, MA_OWNED); 1738 STAILQ_FOREACH(lun, &ctl_softc->lun_list, links) { 1739 mtx_lock(&lun->lun_lock); 1740 ctl_clr_ua(lun, initidx, ua_type); 1741 mtx_unlock(&lun->lun_lock); 1742 } 1743} 1744 1745static int 1746ctl_ha_role_sysctl(SYSCTL_HANDLER_ARGS) 1747{ 1748 struct ctl_softc *softc = (struct ctl_softc *)arg1; 1749 struct ctl_lun *lun; 1750 struct ctl_lun_req ireq; 1751 int error, value; 1752 1753 value = (softc->flags & CTL_FLAG_ACTIVE_SHELF) ? 0 : 1; 1754 error = sysctl_handle_int(oidp, &value, 0, req); 1755 if ((error != 0) || (req->newptr == NULL)) 1756 return (error); 1757 1758 mtx_lock(&softc->ctl_lock); 1759 if (value == 0) 1760 softc->flags |= CTL_FLAG_ACTIVE_SHELF; 1761 else 1762 softc->flags &= ~CTL_FLAG_ACTIVE_SHELF; 1763 STAILQ_FOREACH(lun, &softc->lun_list, links) { 1764 mtx_unlock(&softc->ctl_lock); 1765 bzero(&ireq, sizeof(ireq)); 1766 ireq.reqtype = CTL_LUNREQ_MODIFY; 1767 ireq.reqdata.modify.lun_id = lun->lun; 1768 lun->backend->ioctl(NULL, CTL_LUN_REQ, (caddr_t)&ireq, 0, 1769 curthread); 1770 if (ireq.status != CTL_LUN_OK) { 1771 printf("%s: CTL_LUNREQ_MODIFY returned %d '%s'\n", 1772 __func__, ireq.status, ireq.error_str); 1773 } 1774 mtx_lock(&softc->ctl_lock); 1775 } 1776 mtx_unlock(&softc->ctl_lock); 1777 return (0); 1778} 1779 1780static int 1781ctl_init(void) 1782{ 1783 struct make_dev_args args; 1784 struct ctl_softc *softc; 1785 void *other_pool; 1786 int i, error; 1787 1788 softc = control_softc = malloc(sizeof(*control_softc), M_DEVBUF, 1789 M_WAITOK | M_ZERO); 1790 1791 make_dev_args_init(&args); 1792 args.mda_devsw = &ctl_cdevsw; 1793 args.mda_uid = UID_ROOT; 1794 args.mda_gid = GID_OPERATOR; 1795 args.mda_mode = 0600; 1796 args.mda_si_drv1 = softc; 1797 error = make_dev_s(&args, &softc->dev, "cam/ctl"); 1798 if (error != 0) { 1799 free(control_softc, M_DEVBUF); 1800 return (error); 1801 } 1802 1803 sysctl_ctx_init(&softc->sysctl_ctx); 1804 softc->sysctl_tree = SYSCTL_ADD_NODE(&softc->sysctl_ctx, 1805 SYSCTL_STATIC_CHILDREN(_kern_cam), OID_AUTO, "ctl", 1806 CTLFLAG_RD, 0, "CAM Target Layer"); 1807 1808 if (softc->sysctl_tree == NULL) { 1809 printf("%s: unable to allocate sysctl tree\n", __func__); 1810 destroy_dev(softc->dev); 1811 free(control_softc, M_DEVBUF); 1812 control_softc = NULL; 1813 return (ENOMEM); 1814 } 1815 1816 mtx_init(&softc->ctl_lock, "CTL mutex", NULL, MTX_DEF); 1817 softc->io_zone = uma_zcreate("CTL IO", sizeof(union ctl_io), 1818 NULL, NULL, NULL, NULL, UMA_ALIGN_PTR, 0); 1819 softc->flags = 0; 1820 1821 TUNABLE_INT_FETCH("kern.cam.ctl.ha_mode", (int *)&softc->ha_mode); 1822 SYSCTL_ADD_INT(&softc->sysctl_ctx, SYSCTL_CHILDREN(softc->sysctl_tree), 1823 OID_AUTO, "ha_mode", CTLFLAG_RDTUN, (int *)&softc->ha_mode, 0, 1824 "HA mode (0 - act/stby, 1 - serialize only, 2 - xfer)"); 1825 1826 /* 1827 * In Copan's HA scheme, the "master" and "slave" roles are 1828 * figured out through the slot the controller is in. Although it 1829 * is an active/active system, someone has to be in charge. 1830 */ 1831 TUNABLE_INT_FETCH("kern.cam.ctl.ha_id", &softc->ha_id); 1832 SYSCTL_ADD_INT(&softc->sysctl_ctx, SYSCTL_CHILDREN(softc->sysctl_tree), 1833 OID_AUTO, "ha_id", CTLFLAG_RDTUN, &softc->ha_id, 0, 1834 "HA head ID (0 - no HA)"); 1835 if (softc->ha_id == 0 || softc->ha_id > NUM_HA_SHELVES) { 1836 softc->flags |= CTL_FLAG_ACTIVE_SHELF; 1837 softc->is_single = 1; 1838 softc->port_cnt = CTL_MAX_PORTS; 1839 softc->port_min = 0; 1840 } else { 1841 softc->port_cnt = CTL_MAX_PORTS / NUM_HA_SHELVES; 1842 softc->port_min = (softc->ha_id - 1) * softc->port_cnt; 1843 } 1844 softc->port_max = softc->port_min + softc->port_cnt; 1845 softc->init_min = softc->port_min * CTL_MAX_INIT_PER_PORT; 1846 softc->init_max = softc->port_max * CTL_MAX_INIT_PER_PORT; 1847 1848 SYSCTL_ADD_INT(&softc->sysctl_ctx, SYSCTL_CHILDREN(softc->sysctl_tree), 1849 OID_AUTO, "ha_link", CTLFLAG_RD, (int *)&softc->ha_link, 0, 1850 "HA link state (0 - offline, 1 - unknown, 2 - online)"); 1851 1852 STAILQ_INIT(&softc->lun_list); 1853 STAILQ_INIT(&softc->pending_lun_queue); 1854 STAILQ_INIT(&softc->fe_list); 1855 STAILQ_INIT(&softc->port_list); 1856 STAILQ_INIT(&softc->be_list); 1857 ctl_tpc_init(softc); 1858 1859 if (ctl_pool_create(softc, "othersc", CTL_POOL_ENTRIES_OTHER_SC, 1860 &other_pool) != 0) 1861 { 1862 printf("ctl: can't allocate %d entry other SC pool, " 1863 "exiting\n", CTL_POOL_ENTRIES_OTHER_SC); 1864 return (ENOMEM); 1865 } 1866 softc->othersc_pool = other_pool; 1867 1868 if (worker_threads <= 0) 1869 worker_threads = max(1, mp_ncpus / 4); 1870 if (worker_threads > CTL_MAX_THREADS) 1871 worker_threads = CTL_MAX_THREADS; 1872 1873 for (i = 0; i < worker_threads; i++) { 1874 struct ctl_thread *thr = &softc->threads[i]; 1875 1876 mtx_init(&thr->queue_lock, "CTL queue mutex", NULL, MTX_DEF); 1877 thr->ctl_softc = softc; 1878 STAILQ_INIT(&thr->incoming_queue); 1879 STAILQ_INIT(&thr->rtr_queue); 1880 STAILQ_INIT(&thr->done_queue); 1881 STAILQ_INIT(&thr->isc_queue); 1882 1883 error = kproc_kthread_add(ctl_work_thread, thr, 1884 &softc->ctl_proc, &thr->thread, 0, 0, "ctl", "work%d", i); 1885 if (error != 0) { 1886 printf("error creating CTL work thread!\n"); 1887 ctl_pool_free(other_pool); 1888 return (error); 1889 } 1890 } 1891 error = kproc_kthread_add(ctl_lun_thread, softc, 1892 &softc->ctl_proc, NULL, 0, 0, "ctl", "lun"); 1893 if (error != 0) { 1894 printf("error creating CTL lun thread!\n"); 1895 ctl_pool_free(other_pool); 1896 return (error); 1897 } 1898 error = kproc_kthread_add(ctl_thresh_thread, softc, 1899 &softc->ctl_proc, NULL, 0, 0, "ctl", "thresh"); 1900 if (error != 0) { 1901 printf("error creating CTL threshold thread!\n"); 1902 ctl_pool_free(other_pool); 1903 return (error); 1904 } 1905 1906 SYSCTL_ADD_PROC(&softc->sysctl_ctx,SYSCTL_CHILDREN(softc->sysctl_tree), 1907 OID_AUTO, "ha_role", CTLTYPE_INT | CTLFLAG_RWTUN, 1908 softc, 0, ctl_ha_role_sysctl, "I", "HA role for this head"); 1909 1910 if (softc->is_single == 0) { 1911 ctl_frontend_register(&ha_frontend); 1912 if (ctl_ha_msg_init(softc) != CTL_HA_STATUS_SUCCESS) { 1913 printf("ctl_init: ctl_ha_msg_init failed.\n"); 1914 softc->is_single = 1; 1915 } else 1916 if (ctl_ha_msg_register(CTL_HA_CHAN_CTL, ctl_isc_event_handler) 1917 != CTL_HA_STATUS_SUCCESS) { 1918 printf("ctl_init: ctl_ha_msg_register failed.\n"); 1919 softc->is_single = 1; 1920 } 1921 } 1922 return (0); 1923} 1924 1925void 1926ctl_shutdown(void) 1927{ 1928 struct ctl_softc *softc = control_softc; 1929 struct ctl_lun *lun, *next_lun; 1930 1931 if (softc->is_single == 0) { 1932 ctl_ha_msg_shutdown(softc); 1933 if (ctl_ha_msg_deregister(CTL_HA_CHAN_CTL) 1934 != CTL_HA_STATUS_SUCCESS) 1935 printf("%s: ctl_ha_msg_deregister failed.\n", __func__); 1936 if (ctl_ha_msg_destroy(softc) != CTL_HA_STATUS_SUCCESS) 1937 printf("%s: ctl_ha_msg_destroy failed.\n", __func__); 1938 ctl_frontend_deregister(&ha_frontend); 1939 } 1940 1941 mtx_lock(&softc->ctl_lock); 1942 1943 STAILQ_FOREACH_SAFE(lun, &softc->lun_list, links, next_lun) 1944 ctl_free_lun(lun); 1945 1946 mtx_unlock(&softc->ctl_lock); 1947 1948#if 0 1949 ctl_shutdown_thread(softc->work_thread); 1950 mtx_destroy(&softc->queue_lock); 1951#endif 1952 1953 ctl_tpc_shutdown(softc); 1954 uma_zdestroy(softc->io_zone); 1955 mtx_destroy(&softc->ctl_lock); 1956 1957 destroy_dev(softc->dev); 1958 1959 sysctl_ctx_free(&softc->sysctl_ctx); 1960 1961 free(control_softc, M_DEVBUF); 1962 control_softc = NULL; 1963} 1964 1965static int 1966ctl_module_event_handler(module_t mod, int what, void *arg) 1967{ 1968 1969 switch (what) { 1970 case MOD_LOAD: 1971 return (ctl_init()); 1972 case MOD_UNLOAD: 1973 return (EBUSY); 1974 default: 1975 return (EOPNOTSUPP); 1976 } 1977} 1978 1979/* 1980 * XXX KDM should we do some access checks here? Bump a reference count to 1981 * prevent a CTL module from being unloaded while someone has it open? 1982 */ 1983static int 1984ctl_open(struct cdev *dev, int flags, int fmt, struct thread *td) 1985{ 1986 return (0); 1987} 1988 1989static int 1990ctl_close(struct cdev *dev, int flags, int fmt, struct thread *td) 1991{ 1992 return (0); 1993} 1994 1995/* 1996 * Remove an initiator by port number and initiator ID. 1997 * Returns 0 for success, -1 for failure. 1998 */ 1999int 2000ctl_remove_initiator(struct ctl_port *port, int iid) 2001{ 2002 struct ctl_softc *softc = port->ctl_softc; 2003 2004 mtx_assert(&softc->ctl_lock, MA_NOTOWNED); 2005 2006 if (iid > CTL_MAX_INIT_PER_PORT) { 2007 printf("%s: initiator ID %u > maximun %u!\n", 2008 __func__, iid, CTL_MAX_INIT_PER_PORT); 2009 return (-1); 2010 } 2011 2012 mtx_lock(&softc->ctl_lock); 2013 port->wwpn_iid[iid].in_use--; 2014 port->wwpn_iid[iid].last_use = time_uptime; 2015 mtx_unlock(&softc->ctl_lock); 2016 ctl_isc_announce_iid(port, iid); 2017 2018 return (0); 2019} 2020 2021/* 2022 * Add an initiator to the initiator map. 2023 * Returns iid for success, < 0 for failure. 2024 */ 2025int 2026ctl_add_initiator(struct ctl_port *port, int iid, uint64_t wwpn, char *name) 2027{ 2028 struct ctl_softc *softc = port->ctl_softc; 2029 time_t best_time; 2030 int i, best; 2031 2032 mtx_assert(&softc->ctl_lock, MA_NOTOWNED); 2033 2034 if (iid >= CTL_MAX_INIT_PER_PORT) { 2035 printf("%s: WWPN %#jx initiator ID %u > maximum %u!\n", 2036 __func__, wwpn, iid, CTL_MAX_INIT_PER_PORT); 2037 free(name, M_CTL); 2038 return (-1); 2039 } 2040 2041 mtx_lock(&softc->ctl_lock); 2042 2043 if (iid < 0 && (wwpn != 0 || name != NULL)) { 2044 for (i = 0; i < CTL_MAX_INIT_PER_PORT; i++) { 2045 if (wwpn != 0 && wwpn == port->wwpn_iid[i].wwpn) { 2046 iid = i; 2047 break; 2048 } 2049 if (name != NULL && port->wwpn_iid[i].name != NULL && 2050 strcmp(name, port->wwpn_iid[i].name) == 0) { 2051 iid = i; 2052 break; 2053 } 2054 } 2055 } 2056 2057 if (iid < 0) { 2058 for (i = 0; i < CTL_MAX_INIT_PER_PORT; i++) { 2059 if (port->wwpn_iid[i].in_use == 0 && 2060 port->wwpn_iid[i].wwpn == 0 && 2061 port->wwpn_iid[i].name == NULL) { 2062 iid = i; 2063 break; 2064 } 2065 } 2066 } 2067 2068 if (iid < 0) { 2069 best = -1; 2070 best_time = INT32_MAX; 2071 for (i = 0; i < CTL_MAX_INIT_PER_PORT; i++) { 2072 if (port->wwpn_iid[i].in_use == 0) { 2073 if (port->wwpn_iid[i].last_use < best_time) { 2074 best = i; 2075 best_time = port->wwpn_iid[i].last_use; 2076 } 2077 } 2078 } 2079 iid = best; 2080 } 2081 2082 if (iid < 0) { 2083 mtx_unlock(&softc->ctl_lock); 2084 free(name, M_CTL); 2085 return (-2); 2086 } 2087 2088 if (port->wwpn_iid[iid].in_use > 0 && (wwpn != 0 || name != NULL)) { 2089 /* 2090 * This is not an error yet. 2091 */ 2092 if (wwpn != 0 && wwpn == port->wwpn_iid[iid].wwpn) { 2093#if 0 2094 printf("%s: port %d iid %u WWPN %#jx arrived" 2095 " again\n", __func__, port->targ_port, 2096 iid, (uintmax_t)wwpn); 2097#endif 2098 goto take; 2099 } 2100 if (name != NULL && port->wwpn_iid[iid].name != NULL && 2101 strcmp(name, port->wwpn_iid[iid].name) == 0) { 2102#if 0 2103 printf("%s: port %d iid %u name '%s' arrived" 2104 " again\n", __func__, port->targ_port, 2105 iid, name); 2106#endif 2107 goto take; 2108 } 2109 2110 /* 2111 * This is an error, but what do we do about it? The 2112 * driver is telling us we have a new WWPN for this 2113 * initiator ID, so we pretty much need to use it. 2114 */ 2115 printf("%s: port %d iid %u WWPN %#jx '%s' arrived," 2116 " but WWPN %#jx '%s' is still at that address\n", 2117 __func__, port->targ_port, iid, wwpn, name, 2118 (uintmax_t)port->wwpn_iid[iid].wwpn, 2119 port->wwpn_iid[iid].name); 2120 2121 /* 2122 * XXX KDM clear have_ca and ua_pending on each LUN for 2123 * this initiator. 2124 */ 2125 } 2126take: 2127 free(port->wwpn_iid[iid].name, M_CTL); 2128 port->wwpn_iid[iid].name = name; 2129 port->wwpn_iid[iid].wwpn = wwpn; 2130 port->wwpn_iid[iid].in_use++; 2131 mtx_unlock(&softc->ctl_lock); 2132 ctl_isc_announce_iid(port, iid); 2133 2134 return (iid); 2135} 2136 2137static int 2138ctl_create_iid(struct ctl_port *port, int iid, uint8_t *buf) 2139{ 2140 int len; 2141 2142 switch (port->port_type) { 2143 case CTL_PORT_FC: 2144 { 2145 struct scsi_transportid_fcp *id = 2146 (struct scsi_transportid_fcp *)buf; 2147 if (port->wwpn_iid[iid].wwpn == 0) 2148 return (0); 2149 memset(id, 0, sizeof(*id)); 2150 id->format_protocol = SCSI_PROTO_FC; 2151 scsi_u64to8b(port->wwpn_iid[iid].wwpn, id->n_port_name); 2152 return (sizeof(*id)); 2153 } 2154 case CTL_PORT_ISCSI: 2155 { 2156 struct scsi_transportid_iscsi_port *id = 2157 (struct scsi_transportid_iscsi_port *)buf; 2158 if (port->wwpn_iid[iid].name == NULL) 2159 return (0); 2160 memset(id, 0, 256); 2161 id->format_protocol = SCSI_TRN_ISCSI_FORMAT_PORT | 2162 SCSI_PROTO_ISCSI; 2163 len = strlcpy(id->iscsi_name, port->wwpn_iid[iid].name, 252) + 1; 2164 len = roundup2(min(len, 252), 4); 2165 scsi_ulto2b(len, id->additional_length); 2166 return (sizeof(*id) + len); 2167 } 2168 case CTL_PORT_SAS: 2169 { 2170 struct scsi_transportid_sas *id = 2171 (struct scsi_transportid_sas *)buf; 2172 if (port->wwpn_iid[iid].wwpn == 0) 2173 return (0); 2174 memset(id, 0, sizeof(*id)); 2175 id->format_protocol = SCSI_PROTO_SAS; 2176 scsi_u64to8b(port->wwpn_iid[iid].wwpn, id->sas_address); 2177 return (sizeof(*id)); 2178 } 2179 default: 2180 { 2181 struct scsi_transportid_spi *id = 2182 (struct scsi_transportid_spi *)buf; 2183 memset(id, 0, sizeof(*id)); 2184 id->format_protocol = SCSI_PROTO_SPI; 2185 scsi_ulto2b(iid, id->scsi_addr); 2186 scsi_ulto2b(port->targ_port, id->rel_trgt_port_id); 2187 return (sizeof(*id)); 2188 } 2189 } 2190} 2191 2192/* 2193 * Serialize a command that went down the "wrong" side, and so was sent to 2194 * this controller for execution. The logic is a little different than the 2195 * standard case in ctl_scsiio_precheck(). Errors in this case need to get 2196 * sent back to the other side, but in the success case, we execute the 2197 * command on this side (XFER mode) or tell the other side to execute it 2198 * (SER_ONLY mode). 2199 */ 2200static int 2201ctl_serialize_other_sc_cmd(struct ctl_scsiio *ctsio) 2202{ 2203 struct ctl_softc *softc = control_softc; 2204 union ctl_ha_msg msg_info; 2205 struct ctl_port *port; 2206 struct ctl_lun *lun; 2207 const struct ctl_cmd_entry *entry; 2208 int retval = 0; 2209 uint32_t targ_lun; 2210 2211 targ_lun = ctsio->io_hdr.nexus.targ_mapped_lun; 2212 mtx_lock(&softc->ctl_lock); 2213 2214 /* Make sure that we know about this port. */ 2215 port = ctl_io_port(&ctsio->io_hdr); 2216 if (port == NULL || (port->status & CTL_PORT_STATUS_ONLINE) == 0) { 2217 ctl_set_internal_failure(ctsio, /*sks_valid*/ 0, 2218 /*retry_count*/ 1); 2219 goto badjuju; 2220 } 2221 2222 /* Make sure that we know about this LUN. */ 2223 if ((targ_lun < CTL_MAX_LUNS) && 2224 ((lun = softc->ctl_luns[targ_lun]) != NULL)) { 2225 mtx_lock(&lun->lun_lock); 2226 mtx_unlock(&softc->ctl_lock); 2227 /* 2228 * If the LUN is invalid, pretend that it doesn't exist. 2229 * It will go away as soon as all pending I/O has been 2230 * completed. 2231 */ 2232 if (lun->flags & CTL_LUN_DISABLED) { 2233 mtx_unlock(&lun->lun_lock); 2234 lun = NULL; 2235 } 2236 } else { 2237 mtx_unlock(&softc->ctl_lock); 2238 lun = NULL; 2239 } 2240 if (lun == NULL) { 2241 /* 2242 * The other node would not send this request to us unless 2243 * received announce that we are primary node for this LUN. 2244 * If this LUN does not exist now, it is probably result of 2245 * a race, so respond to initiator in the most opaque way. 2246 */ 2247 ctl_set_busy(ctsio); 2248 goto badjuju; 2249 } 2250 2251 entry = ctl_get_cmd_entry(ctsio, NULL); 2252 if (ctl_scsiio_lun_check(lun, entry, ctsio) != 0) { 2253 mtx_unlock(&lun->lun_lock); 2254 goto badjuju; 2255 } 2256 2257 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr = lun; 2258 ctsio->io_hdr.ctl_private[CTL_PRIV_BACKEND_LUN].ptr = lun->be_lun; 2259 2260 /* 2261 * Every I/O goes into the OOA queue for a 2262 * particular LUN, and stays there until completion. 2263 */ 2264#ifdef CTL_TIME_IO 2265 if (TAILQ_EMPTY(&lun->ooa_queue)) 2266 lun->idle_time += getsbinuptime() - lun->last_busy; 2267#endif 2268 TAILQ_INSERT_TAIL(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 2269 2270 switch (ctl_check_ooa(lun, (union ctl_io *)ctsio, 2271 (union ctl_io *)TAILQ_PREV(&ctsio->io_hdr, ctl_ooaq, 2272 ooa_links))) { 2273 case CTL_ACTION_BLOCK: 2274 ctsio->io_hdr.flags |= CTL_FLAG_BLOCKED; 2275 TAILQ_INSERT_TAIL(&lun->blocked_queue, &ctsio->io_hdr, 2276 blocked_links); 2277 mtx_unlock(&lun->lun_lock); 2278 break; 2279 case CTL_ACTION_PASS: 2280 case CTL_ACTION_SKIP: 2281 if (softc->ha_mode == CTL_HA_MODE_XFER) { 2282 ctsio->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 2283 ctl_enqueue_rtr((union ctl_io *)ctsio); 2284 mtx_unlock(&lun->lun_lock); 2285 } else { 2286 ctsio->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 2287 mtx_unlock(&lun->lun_lock); 2288 2289 /* send msg back to other side */ 2290 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 2291 msg_info.hdr.serializing_sc = (union ctl_io *)ctsio; 2292 msg_info.hdr.msg_type = CTL_MSG_R2R; 2293 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 2294 sizeof(msg_info.hdr), M_WAITOK); 2295 } 2296 break; 2297 case CTL_ACTION_OVERLAP: 2298 TAILQ_REMOVE(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 2299 mtx_unlock(&lun->lun_lock); 2300 ctl_set_overlapped_cmd(ctsio); 2301 goto badjuju; 2302 case CTL_ACTION_OVERLAP_TAG: 2303 TAILQ_REMOVE(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 2304 mtx_unlock(&lun->lun_lock); 2305 ctl_set_overlapped_tag(ctsio, ctsio->tag_num); 2306 goto badjuju; 2307 case CTL_ACTION_ERROR: 2308 default: 2309 TAILQ_REMOVE(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 2310 mtx_unlock(&lun->lun_lock); 2311 2312 ctl_set_internal_failure(ctsio, /*sks_valid*/ 0, 2313 /*retry_count*/ 0); 2314badjuju: 2315 ctl_copy_sense_data_back((union ctl_io *)ctsio, &msg_info); 2316 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 2317 msg_info.hdr.serializing_sc = NULL; 2318 msg_info.hdr.msg_type = CTL_MSG_BAD_JUJU; 2319 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 2320 sizeof(msg_info.scsi), M_WAITOK); 2321 retval = 1; 2322 break; 2323 } 2324 return (retval); 2325} 2326 2327/* 2328 * Returns 0 for success, errno for failure. 2329 */ 2330static void 2331ctl_ioctl_fill_ooa(struct ctl_lun *lun, uint32_t *cur_fill_num, 2332 struct ctl_ooa *ooa_hdr, struct ctl_ooa_entry *kern_entries) 2333{ 2334 union ctl_io *io; 2335 2336 mtx_lock(&lun->lun_lock); 2337 for (io = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); (io != NULL); 2338 (*cur_fill_num)++, io = (union ctl_io *)TAILQ_NEXT(&io->io_hdr, 2339 ooa_links)) { 2340 struct ctl_ooa_entry *entry; 2341 2342 /* 2343 * If we've got more than we can fit, just count the 2344 * remaining entries. 2345 */ 2346 if (*cur_fill_num >= ooa_hdr->alloc_num) 2347 continue; 2348 2349 entry = &kern_entries[*cur_fill_num]; 2350 2351 entry->tag_num = io->scsiio.tag_num; 2352 entry->lun_num = lun->lun; 2353#ifdef CTL_TIME_IO 2354 entry->start_bt = io->io_hdr.start_bt; 2355#endif 2356 bcopy(io->scsiio.cdb, entry->cdb, io->scsiio.cdb_len); 2357 entry->cdb_len = io->scsiio.cdb_len; 2358 if (io->io_hdr.flags & CTL_FLAG_BLOCKED) 2359 entry->cmd_flags |= CTL_OOACMD_FLAG_BLOCKED; 2360 2361 if (io->io_hdr.flags & CTL_FLAG_DMA_INPROG) 2362 entry->cmd_flags |= CTL_OOACMD_FLAG_DMA; 2363 2364 if (io->io_hdr.flags & CTL_FLAG_ABORT) 2365 entry->cmd_flags |= CTL_OOACMD_FLAG_ABORT; 2366 2367 if (io->io_hdr.flags & CTL_FLAG_IS_WAS_ON_RTR) 2368 entry->cmd_flags |= CTL_OOACMD_FLAG_RTR; 2369 2370 if (io->io_hdr.flags & CTL_FLAG_DMA_QUEUED) 2371 entry->cmd_flags |= CTL_OOACMD_FLAG_DMA_QUEUED; 2372 } 2373 mtx_unlock(&lun->lun_lock); 2374} 2375 2376static void * 2377ctl_copyin_alloc(void *user_addr, int len, char *error_str, 2378 size_t error_str_len) 2379{ 2380 void *kptr; 2381 2382 kptr = malloc(len, M_CTL, M_WAITOK | M_ZERO); 2383 2384 if (copyin(user_addr, kptr, len) != 0) { 2385 snprintf(error_str, error_str_len, "Error copying %d bytes " 2386 "from user address %p to kernel address %p", len, 2387 user_addr, kptr); 2388 free(kptr, M_CTL); 2389 return (NULL); 2390 } 2391 2392 return (kptr); 2393} 2394 2395static void 2396ctl_free_args(int num_args, struct ctl_be_arg *args) 2397{ 2398 int i; 2399 2400 if (args == NULL) 2401 return; 2402 2403 for (i = 0; i < num_args; i++) { 2404 free(args[i].kname, M_CTL); 2405 free(args[i].kvalue, M_CTL); 2406 } 2407 2408 free(args, M_CTL); 2409} 2410 2411static struct ctl_be_arg * 2412ctl_copyin_args(int num_args, struct ctl_be_arg *uargs, 2413 char *error_str, size_t error_str_len) 2414{ 2415 struct ctl_be_arg *args; 2416 int i; 2417 2418 args = ctl_copyin_alloc(uargs, num_args * sizeof(*args), 2419 error_str, error_str_len); 2420 2421 if (args == NULL) 2422 goto bailout; 2423 2424 for (i = 0; i < num_args; i++) { 2425 args[i].kname = NULL; 2426 args[i].kvalue = NULL; 2427 } 2428 2429 for (i = 0; i < num_args; i++) { 2430 uint8_t *tmpptr; 2431 2432 args[i].kname = ctl_copyin_alloc(args[i].name, 2433 args[i].namelen, error_str, error_str_len); 2434 if (args[i].kname == NULL) 2435 goto bailout; 2436 2437 if (args[i].kname[args[i].namelen - 1] != '\0') { 2438 snprintf(error_str, error_str_len, "Argument %d " 2439 "name is not NUL-terminated", i); 2440 goto bailout; 2441 } 2442 2443 if (args[i].flags & CTL_BEARG_RD) { 2444 tmpptr = ctl_copyin_alloc(args[i].value, 2445 args[i].vallen, error_str, error_str_len); 2446 if (tmpptr == NULL) 2447 goto bailout; 2448 if ((args[i].flags & CTL_BEARG_ASCII) 2449 && (tmpptr[args[i].vallen - 1] != '\0')) { 2450 snprintf(error_str, error_str_len, "Argument " 2451 "%d value is not NUL-terminated", i); 2452 free(tmpptr, M_CTL); 2453 goto bailout; 2454 } 2455 args[i].kvalue = tmpptr; 2456 } else { 2457 args[i].kvalue = malloc(args[i].vallen, 2458 M_CTL, M_WAITOK | M_ZERO); 2459 } 2460 } 2461 2462 return (args); 2463bailout: 2464 2465 ctl_free_args(num_args, args); 2466 2467 return (NULL); 2468} 2469 2470static void 2471ctl_copyout_args(int num_args, struct ctl_be_arg *args) 2472{ 2473 int i; 2474 2475 for (i = 0; i < num_args; i++) { 2476 if (args[i].flags & CTL_BEARG_WR) 2477 copyout(args[i].kvalue, args[i].value, args[i].vallen); 2478 } 2479} 2480 2481/* 2482 * Escape characters that are illegal or not recommended in XML. 2483 */ 2484int 2485ctl_sbuf_printf_esc(struct sbuf *sb, char *str, int size) 2486{ 2487 char *end = str + size; 2488 int retval; 2489 2490 retval = 0; 2491 2492 for (; *str && str < end; str++) { 2493 switch (*str) { 2494 case '&': 2495 retval = sbuf_printf(sb, "&"); 2496 break; 2497 case '>': 2498 retval = sbuf_printf(sb, ">"); 2499 break; 2500 case '<': 2501 retval = sbuf_printf(sb, "<"); 2502 break; 2503 default: 2504 retval = sbuf_putc(sb, *str); 2505 break; 2506 } 2507 2508 if (retval != 0) 2509 break; 2510 2511 } 2512 2513 return (retval); 2514} 2515 2516static void 2517ctl_id_sbuf(struct ctl_devid *id, struct sbuf *sb) 2518{ 2519 struct scsi_vpd_id_descriptor *desc; 2520 int i; 2521 2522 if (id == NULL || id->len < 4) 2523 return; 2524 desc = (struct scsi_vpd_id_descriptor *)id->data; 2525 switch (desc->id_type & SVPD_ID_TYPE_MASK) { 2526 case SVPD_ID_TYPE_T10: 2527 sbuf_printf(sb, "t10."); 2528 break; 2529 case SVPD_ID_TYPE_EUI64: 2530 sbuf_printf(sb, "eui."); 2531 break; 2532 case SVPD_ID_TYPE_NAA: 2533 sbuf_printf(sb, "naa."); 2534 break; 2535 case SVPD_ID_TYPE_SCSI_NAME: 2536 break; 2537 } 2538 switch (desc->proto_codeset & SVPD_ID_CODESET_MASK) { 2539 case SVPD_ID_CODESET_BINARY: 2540 for (i = 0; i < desc->length; i++) 2541 sbuf_printf(sb, "%02x", desc->identifier[i]); 2542 break; 2543 case SVPD_ID_CODESET_ASCII: 2544 sbuf_printf(sb, "%.*s", (int)desc->length, 2545 (char *)desc->identifier); 2546 break; 2547 case SVPD_ID_CODESET_UTF8: 2548 sbuf_printf(sb, "%s", (char *)desc->identifier); 2549 break; 2550 } 2551} 2552 2553static int 2554ctl_ioctl(struct cdev *dev, u_long cmd, caddr_t addr, int flag, 2555 struct thread *td) 2556{ 2557 struct ctl_softc *softc = dev->si_drv1; 2558 struct ctl_lun *lun; 2559 int retval; 2560 2561 retval = 0; 2562 2563 switch (cmd) { 2564 case CTL_IO: 2565 retval = ctl_ioctl_io(dev, cmd, addr, flag, td); 2566 break; 2567 case CTL_ENABLE_PORT: 2568 case CTL_DISABLE_PORT: 2569 case CTL_SET_PORT_WWNS: { 2570 struct ctl_port *port; 2571 struct ctl_port_entry *entry; 2572 2573 entry = (struct ctl_port_entry *)addr; 2574 2575 mtx_lock(&softc->ctl_lock); 2576 STAILQ_FOREACH(port, &softc->port_list, links) { 2577 int action, done; 2578 2579 if (port->targ_port < softc->port_min || 2580 port->targ_port >= softc->port_max) 2581 continue; 2582 2583 action = 0; 2584 done = 0; 2585 if ((entry->port_type == CTL_PORT_NONE) 2586 && (entry->targ_port == port->targ_port)) { 2587 /* 2588 * If the user only wants to enable or 2589 * disable or set WWNs on a specific port, 2590 * do the operation and we're done. 2591 */ 2592 action = 1; 2593 done = 1; 2594 } else if (entry->port_type & port->port_type) { 2595 /* 2596 * Compare the user's type mask with the 2597 * particular frontend type to see if we 2598 * have a match. 2599 */ 2600 action = 1; 2601 done = 0; 2602 2603 /* 2604 * Make sure the user isn't trying to set 2605 * WWNs on multiple ports at the same time. 2606 */ 2607 if (cmd == CTL_SET_PORT_WWNS) { 2608 printf("%s: Can't set WWNs on " 2609 "multiple ports\n", __func__); 2610 retval = EINVAL; 2611 break; 2612 } 2613 } 2614 if (action == 0) 2615 continue; 2616 2617 /* 2618 * XXX KDM we have to drop the lock here, because 2619 * the online/offline operations can potentially 2620 * block. We need to reference count the frontends 2621 * so they can't go away, 2622 */ 2623 if (cmd == CTL_ENABLE_PORT) { 2624 mtx_unlock(&softc->ctl_lock); 2625 ctl_port_online(port); 2626 mtx_lock(&softc->ctl_lock); 2627 } else if (cmd == CTL_DISABLE_PORT) { 2628 mtx_unlock(&softc->ctl_lock); 2629 ctl_port_offline(port); 2630 mtx_lock(&softc->ctl_lock); 2631 } else if (cmd == CTL_SET_PORT_WWNS) { 2632 ctl_port_set_wwns(port, 2633 (entry->flags & CTL_PORT_WWNN_VALID) ? 2634 1 : 0, entry->wwnn, 2635 (entry->flags & CTL_PORT_WWPN_VALID) ? 2636 1 : 0, entry->wwpn); 2637 } 2638 if (done != 0) 2639 break; 2640 } 2641 mtx_unlock(&softc->ctl_lock); 2642 break; 2643 } 2644 case CTL_GET_OOA: { 2645 struct ctl_ooa *ooa_hdr; 2646 struct ctl_ooa_entry *entries; 2647 uint32_t cur_fill_num; 2648 2649 ooa_hdr = (struct ctl_ooa *)addr; 2650 2651 if ((ooa_hdr->alloc_len == 0) 2652 || (ooa_hdr->alloc_num == 0)) { 2653 printf("%s: CTL_GET_OOA: alloc len %u and alloc num %u " 2654 "must be non-zero\n", __func__, 2655 ooa_hdr->alloc_len, ooa_hdr->alloc_num); 2656 retval = EINVAL; 2657 break; 2658 } 2659 2660 if (ooa_hdr->alloc_len != (ooa_hdr->alloc_num * 2661 sizeof(struct ctl_ooa_entry))) { 2662 printf("%s: CTL_GET_OOA: alloc len %u must be alloc " 2663 "num %d * sizeof(struct ctl_ooa_entry) %zd\n", 2664 __func__, ooa_hdr->alloc_len, 2665 ooa_hdr->alloc_num,sizeof(struct ctl_ooa_entry)); 2666 retval = EINVAL; 2667 break; 2668 } 2669 2670 entries = malloc(ooa_hdr->alloc_len, M_CTL, M_WAITOK | M_ZERO); 2671 if (entries == NULL) { 2672 printf("%s: could not allocate %d bytes for OOA " 2673 "dump\n", __func__, ooa_hdr->alloc_len); 2674 retval = ENOMEM; 2675 break; 2676 } 2677 2678 mtx_lock(&softc->ctl_lock); 2679 if (((ooa_hdr->flags & CTL_OOA_FLAG_ALL_LUNS) == 0) 2680 && ((ooa_hdr->lun_num >= CTL_MAX_LUNS) 2681 || (softc->ctl_luns[ooa_hdr->lun_num] == NULL))) { 2682 mtx_unlock(&softc->ctl_lock); 2683 free(entries, M_CTL); 2684 printf("%s: CTL_GET_OOA: invalid LUN %ju\n", 2685 __func__, (uintmax_t)ooa_hdr->lun_num); 2686 retval = EINVAL; 2687 break; 2688 } 2689 2690 cur_fill_num = 0; 2691 2692 if (ooa_hdr->flags & CTL_OOA_FLAG_ALL_LUNS) { 2693 STAILQ_FOREACH(lun, &softc->lun_list, links) { 2694 ctl_ioctl_fill_ooa(lun, &cur_fill_num, 2695 ooa_hdr, entries); 2696 } 2697 } else { 2698 lun = softc->ctl_luns[ooa_hdr->lun_num]; 2699 ctl_ioctl_fill_ooa(lun, &cur_fill_num, ooa_hdr, 2700 entries); 2701 } 2702 mtx_unlock(&softc->ctl_lock); 2703 2704 ooa_hdr->fill_num = min(cur_fill_num, ooa_hdr->alloc_num); 2705 ooa_hdr->fill_len = ooa_hdr->fill_num * 2706 sizeof(struct ctl_ooa_entry); 2707 retval = copyout(entries, ooa_hdr->entries, ooa_hdr->fill_len); 2708 if (retval != 0) { 2709 printf("%s: error copying out %d bytes for OOA dump\n", 2710 __func__, ooa_hdr->fill_len); 2711 } 2712 2713 getbinuptime(&ooa_hdr->cur_bt); 2714 2715 if (cur_fill_num > ooa_hdr->alloc_num) { 2716 ooa_hdr->dropped_num = cur_fill_num -ooa_hdr->alloc_num; 2717 ooa_hdr->status = CTL_OOA_NEED_MORE_SPACE; 2718 } else { 2719 ooa_hdr->dropped_num = 0; 2720 ooa_hdr->status = CTL_OOA_OK; 2721 } 2722 2723 free(entries, M_CTL); 2724 break; 2725 } 2726 case CTL_DELAY_IO: { 2727 struct ctl_io_delay_info *delay_info; 2728 2729 delay_info = (struct ctl_io_delay_info *)addr; 2730 2731#ifdef CTL_IO_DELAY 2732 mtx_lock(&softc->ctl_lock); 2733 2734 if ((delay_info->lun_id >= CTL_MAX_LUNS) 2735 || (softc->ctl_luns[delay_info->lun_id] == NULL)) { 2736 delay_info->status = CTL_DELAY_STATUS_INVALID_LUN; 2737 } else { 2738 lun = softc->ctl_luns[delay_info->lun_id]; 2739 mtx_lock(&lun->lun_lock); 2740 2741 delay_info->status = CTL_DELAY_STATUS_OK; 2742 2743 switch (delay_info->delay_type) { 2744 case CTL_DELAY_TYPE_CONT: 2745 break; 2746 case CTL_DELAY_TYPE_ONESHOT: 2747 break; 2748 default: 2749 delay_info->status = 2750 CTL_DELAY_STATUS_INVALID_TYPE; 2751 break; 2752 } 2753 2754 switch (delay_info->delay_loc) { 2755 case CTL_DELAY_LOC_DATAMOVE: 2756 lun->delay_info.datamove_type = 2757 delay_info->delay_type; 2758 lun->delay_info.datamove_delay = 2759 delay_info->delay_secs; 2760 break; 2761 case CTL_DELAY_LOC_DONE: 2762 lun->delay_info.done_type = 2763 delay_info->delay_type; 2764 lun->delay_info.done_delay = 2765 delay_info->delay_secs; 2766 break; 2767 default: 2768 delay_info->status = 2769 CTL_DELAY_STATUS_INVALID_LOC; 2770 break; 2771 } 2772 mtx_unlock(&lun->lun_lock); 2773 } 2774 2775 mtx_unlock(&softc->ctl_lock); 2776#else 2777 delay_info->status = CTL_DELAY_STATUS_NOT_IMPLEMENTED; 2778#endif /* CTL_IO_DELAY */ 2779 break; 2780 } 2781 case CTL_GETSTATS: { 2782 struct ctl_stats *stats; 2783 int i; 2784 2785 stats = (struct ctl_stats *)addr; 2786 2787 if ((sizeof(struct ctl_lun_io_stats) * softc->num_luns) > 2788 stats->alloc_len) { 2789 stats->status = CTL_SS_NEED_MORE_SPACE; 2790 stats->num_luns = softc->num_luns; 2791 break; 2792 } 2793 /* 2794 * XXX KDM no locking here. If the LUN list changes, 2795 * things can blow up. 2796 */ 2797 i = 0; 2798 STAILQ_FOREACH(lun, &softc->lun_list, links) { 2799 retval = copyout(&lun->stats, &stats->lun_stats[i++], 2800 sizeof(lun->stats)); 2801 if (retval != 0) 2802 break; 2803 } 2804 stats->num_luns = softc->num_luns; 2805 stats->fill_len = sizeof(struct ctl_lun_io_stats) * 2806 softc->num_luns; 2807 stats->status = CTL_SS_OK; 2808#ifdef CTL_TIME_IO 2809 stats->flags = CTL_STATS_FLAG_TIME_VALID; 2810#else 2811 stats->flags = CTL_STATS_FLAG_NONE; 2812#endif 2813 getnanouptime(&stats->timestamp); 2814 break; 2815 } 2816 case CTL_ERROR_INJECT: { 2817 struct ctl_error_desc *err_desc, *new_err_desc; 2818 2819 err_desc = (struct ctl_error_desc *)addr; 2820 2821 new_err_desc = malloc(sizeof(*new_err_desc), M_CTL, 2822 M_WAITOK | M_ZERO); 2823 bcopy(err_desc, new_err_desc, sizeof(*new_err_desc)); 2824 2825 mtx_lock(&softc->ctl_lock); 2826 lun = softc->ctl_luns[err_desc->lun_id]; 2827 if (lun == NULL) { 2828 mtx_unlock(&softc->ctl_lock); 2829 free(new_err_desc, M_CTL); 2830 printf("%s: CTL_ERROR_INJECT: invalid LUN %ju\n", 2831 __func__, (uintmax_t)err_desc->lun_id); 2832 retval = EINVAL; 2833 break; 2834 } 2835 mtx_lock(&lun->lun_lock); 2836 mtx_unlock(&softc->ctl_lock); 2837 2838 /* 2839 * We could do some checking here to verify the validity 2840 * of the request, but given the complexity of error 2841 * injection requests, the checking logic would be fairly 2842 * complex. 2843 * 2844 * For now, if the request is invalid, it just won't get 2845 * executed and might get deleted. 2846 */ 2847 STAILQ_INSERT_TAIL(&lun->error_list, new_err_desc, links); 2848 2849 /* 2850 * XXX KDM check to make sure the serial number is unique, 2851 * in case we somehow manage to wrap. That shouldn't 2852 * happen for a very long time, but it's the right thing to 2853 * do. 2854 */ 2855 new_err_desc->serial = lun->error_serial; 2856 err_desc->serial = lun->error_serial; 2857 lun->error_serial++; 2858 2859 mtx_unlock(&lun->lun_lock); 2860 break; 2861 } 2862 case CTL_ERROR_INJECT_DELETE: { 2863 struct ctl_error_desc *delete_desc, *desc, *desc2; 2864 int delete_done; 2865 2866 delete_desc = (struct ctl_error_desc *)addr; 2867 delete_done = 0; 2868 2869 mtx_lock(&softc->ctl_lock); 2870 lun = softc->ctl_luns[delete_desc->lun_id]; 2871 if (lun == NULL) { 2872 mtx_unlock(&softc->ctl_lock); 2873 printf("%s: CTL_ERROR_INJECT_DELETE: invalid LUN %ju\n", 2874 __func__, (uintmax_t)delete_desc->lun_id); 2875 retval = EINVAL; 2876 break; 2877 } 2878 mtx_lock(&lun->lun_lock); 2879 mtx_unlock(&softc->ctl_lock); 2880 STAILQ_FOREACH_SAFE(desc, &lun->error_list, links, desc2) { 2881 if (desc->serial != delete_desc->serial) 2882 continue; 2883 2884 STAILQ_REMOVE(&lun->error_list, desc, ctl_error_desc, 2885 links); 2886 free(desc, M_CTL); 2887 delete_done = 1; 2888 } 2889 mtx_unlock(&lun->lun_lock); 2890 if (delete_done == 0) { 2891 printf("%s: CTL_ERROR_INJECT_DELETE: can't find " 2892 "error serial %ju on LUN %u\n", __func__, 2893 delete_desc->serial, delete_desc->lun_id); 2894 retval = EINVAL; 2895 break; 2896 } 2897 break; 2898 } 2899 case CTL_DUMP_STRUCTS: { 2900 int i, j, k; 2901 struct ctl_port *port; 2902 struct ctl_frontend *fe; 2903 2904 mtx_lock(&softc->ctl_lock); 2905 printf("CTL Persistent Reservation information start:\n"); 2906 for (i = 0; i < CTL_MAX_LUNS; i++) { 2907 lun = softc->ctl_luns[i]; 2908 2909 if ((lun == NULL) 2910 || ((lun->flags & CTL_LUN_DISABLED) != 0)) 2911 continue; 2912 2913 for (j = 0; j < CTL_MAX_PORTS; j++) { 2914 if (lun->pr_keys[j] == NULL) 2915 continue; 2916 for (k = 0; k < CTL_MAX_INIT_PER_PORT; k++){ 2917 if (lun->pr_keys[j][k] == 0) 2918 continue; 2919 printf(" LUN %d port %d iid %d key " 2920 "%#jx\n", i, j, k, 2921 (uintmax_t)lun->pr_keys[j][k]); 2922 } 2923 } 2924 } 2925 printf("CTL Persistent Reservation information end\n"); 2926 printf("CTL Ports:\n"); 2927 STAILQ_FOREACH(port, &softc->port_list, links) { 2928 printf(" Port %d '%s' Frontend '%s' Type %u pp %d vp %d WWNN " 2929 "%#jx WWPN %#jx\n", port->targ_port, port->port_name, 2930 port->frontend->name, port->port_type, 2931 port->physical_port, port->virtual_port, 2932 (uintmax_t)port->wwnn, (uintmax_t)port->wwpn); 2933 for (j = 0; j < CTL_MAX_INIT_PER_PORT; j++) { 2934 if (port->wwpn_iid[j].in_use == 0 && 2935 port->wwpn_iid[j].wwpn == 0 && 2936 port->wwpn_iid[j].name == NULL) 2937 continue; 2938 2939 printf(" iid %u use %d WWPN %#jx '%s'\n", 2940 j, port->wwpn_iid[j].in_use, 2941 (uintmax_t)port->wwpn_iid[j].wwpn, 2942 port->wwpn_iid[j].name); 2943 } 2944 } 2945 printf("CTL Port information end\n"); 2946 mtx_unlock(&softc->ctl_lock); 2947 /* 2948 * XXX KDM calling this without a lock. We'd likely want 2949 * to drop the lock before calling the frontend's dump 2950 * routine anyway. 2951 */ 2952 printf("CTL Frontends:\n"); 2953 STAILQ_FOREACH(fe, &softc->fe_list, links) { 2954 printf(" Frontend '%s'\n", fe->name); 2955 if (fe->fe_dump != NULL) 2956 fe->fe_dump(); 2957 } 2958 printf("CTL Frontend information end\n"); 2959 break; 2960 } 2961 case CTL_LUN_REQ: { 2962 struct ctl_lun_req *lun_req; 2963 struct ctl_backend_driver *backend; 2964 2965 lun_req = (struct ctl_lun_req *)addr; 2966 2967 backend = ctl_backend_find(lun_req->backend); 2968 if (backend == NULL) { 2969 lun_req->status = CTL_LUN_ERROR; 2970 snprintf(lun_req->error_str, 2971 sizeof(lun_req->error_str), 2972 "Backend \"%s\" not found.", 2973 lun_req->backend); 2974 break; 2975 } 2976 if (lun_req->num_be_args > 0) { 2977 lun_req->kern_be_args = ctl_copyin_args( 2978 lun_req->num_be_args, 2979 lun_req->be_args, 2980 lun_req->error_str, 2981 sizeof(lun_req->error_str)); 2982 if (lun_req->kern_be_args == NULL) { 2983 lun_req->status = CTL_LUN_ERROR; 2984 break; 2985 } 2986 } 2987 2988 retval = backend->ioctl(dev, cmd, addr, flag, td); 2989 2990 if (lun_req->num_be_args > 0) { 2991 ctl_copyout_args(lun_req->num_be_args, 2992 lun_req->kern_be_args); 2993 ctl_free_args(lun_req->num_be_args, 2994 lun_req->kern_be_args); 2995 } 2996 break; 2997 } 2998 case CTL_LUN_LIST: { 2999 struct sbuf *sb; 3000 struct ctl_lun_list *list; 3001 struct ctl_option *opt; 3002 3003 list = (struct ctl_lun_list *)addr; 3004 3005 /* 3006 * Allocate a fixed length sbuf here, based on the length 3007 * of the user's buffer. We could allocate an auto-extending 3008 * buffer, and then tell the user how much larger our 3009 * amount of data is than his buffer, but that presents 3010 * some problems: 3011 * 3012 * 1. The sbuf(9) routines use a blocking malloc, and so 3013 * we can't hold a lock while calling them with an 3014 * auto-extending buffer. 3015 * 3016 * 2. There is not currently a LUN reference counting 3017 * mechanism, outside of outstanding transactions on 3018 * the LUN's OOA queue. So a LUN could go away on us 3019 * while we're getting the LUN number, backend-specific 3020 * information, etc. Thus, given the way things 3021 * currently work, we need to hold the CTL lock while 3022 * grabbing LUN information. 3023 * 3024 * So, from the user's standpoint, the best thing to do is 3025 * allocate what he thinks is a reasonable buffer length, 3026 * and then if he gets a CTL_LUN_LIST_NEED_MORE_SPACE error, 3027 * double the buffer length and try again. (And repeat 3028 * that until he succeeds.) 3029 */ 3030 sb = sbuf_new(NULL, NULL, list->alloc_len, SBUF_FIXEDLEN); 3031 if (sb == NULL) { 3032 list->status = CTL_LUN_LIST_ERROR; 3033 snprintf(list->error_str, sizeof(list->error_str), 3034 "Unable to allocate %d bytes for LUN list", 3035 list->alloc_len); 3036 break; 3037 } 3038 3039 sbuf_printf(sb, "<ctllunlist>\n"); 3040 3041 mtx_lock(&softc->ctl_lock); 3042 STAILQ_FOREACH(lun, &softc->lun_list, links) { 3043 mtx_lock(&lun->lun_lock); 3044 retval = sbuf_printf(sb, "<lun id=\"%ju\">\n", 3045 (uintmax_t)lun->lun); 3046 3047 /* 3048 * Bail out as soon as we see that we've overfilled 3049 * the buffer. 3050 */ 3051 if (retval != 0) 3052 break; 3053 3054 retval = sbuf_printf(sb, "\t<backend_type>%s" 3055 "</backend_type>\n", 3056 (lun->backend == NULL) ? "none" : 3057 lun->backend->name); 3058 3059 if (retval != 0) 3060 break; 3061 3062 retval = sbuf_printf(sb, "\t<lun_type>%d</lun_type>\n", 3063 lun->be_lun->lun_type); 3064 3065 if (retval != 0) 3066 break; 3067 3068 if (lun->backend == NULL) { 3069 retval = sbuf_printf(sb, "</lun>\n"); 3070 if (retval != 0) 3071 break; 3072 continue; 3073 } 3074 3075 retval = sbuf_printf(sb, "\t<size>%ju</size>\n", 3076 (lun->be_lun->maxlba > 0) ? 3077 lun->be_lun->maxlba + 1 : 0); 3078 3079 if (retval != 0) 3080 break; 3081 3082 retval = sbuf_printf(sb, "\t<blocksize>%u</blocksize>\n", 3083 lun->be_lun->blocksize); 3084 3085 if (retval != 0) 3086 break; 3087 3088 retval = sbuf_printf(sb, "\t<serial_number>"); 3089 3090 if (retval != 0) 3091 break; 3092 3093 retval = ctl_sbuf_printf_esc(sb, 3094 lun->be_lun->serial_num, 3095 sizeof(lun->be_lun->serial_num)); 3096 3097 if (retval != 0) 3098 break; 3099 3100 retval = sbuf_printf(sb, "</serial_number>\n"); 3101 3102 if (retval != 0) 3103 break; 3104 3105 retval = sbuf_printf(sb, "\t<device_id>"); 3106 3107 if (retval != 0) 3108 break; 3109 3110 retval = ctl_sbuf_printf_esc(sb, 3111 lun->be_lun->device_id, 3112 sizeof(lun->be_lun->device_id)); 3113 3114 if (retval != 0) 3115 break; 3116 3117 retval = sbuf_printf(sb, "</device_id>\n"); 3118 3119 if (retval != 0) 3120 break; 3121 3122 if (lun->backend->lun_info != NULL) { 3123 retval = lun->backend->lun_info(lun->be_lun->be_lun, sb); 3124 if (retval != 0) 3125 break; 3126 } 3127 STAILQ_FOREACH(opt, &lun->be_lun->options, links) { 3128 retval = sbuf_printf(sb, "\t<%s>%s</%s>\n", 3129 opt->name, opt->value, opt->name); 3130 if (retval != 0) 3131 break; 3132 } 3133 3134 retval = sbuf_printf(sb, "</lun>\n"); 3135 3136 if (retval != 0) 3137 break; 3138 mtx_unlock(&lun->lun_lock); 3139 } 3140 if (lun != NULL) 3141 mtx_unlock(&lun->lun_lock); 3142 mtx_unlock(&softc->ctl_lock); 3143 3144 if ((retval != 0) 3145 || ((retval = sbuf_printf(sb, "</ctllunlist>\n")) != 0)) { 3146 retval = 0; 3147 sbuf_delete(sb); 3148 list->status = CTL_LUN_LIST_NEED_MORE_SPACE; 3149 snprintf(list->error_str, sizeof(list->error_str), 3150 "Out of space, %d bytes is too small", 3151 list->alloc_len); 3152 break; 3153 } 3154 3155 sbuf_finish(sb); 3156 3157 retval = copyout(sbuf_data(sb), list->lun_xml, 3158 sbuf_len(sb) + 1); 3159 3160 list->fill_len = sbuf_len(sb) + 1; 3161 list->status = CTL_LUN_LIST_OK; 3162 sbuf_delete(sb); 3163 break; 3164 } 3165 case CTL_ISCSI: { 3166 struct ctl_iscsi *ci; 3167 struct ctl_frontend *fe; 3168 3169 ci = (struct ctl_iscsi *)addr; 3170 3171 fe = ctl_frontend_find("iscsi"); 3172 if (fe == NULL) { 3173 ci->status = CTL_ISCSI_ERROR; 3174 snprintf(ci->error_str, sizeof(ci->error_str), 3175 "Frontend \"iscsi\" not found."); 3176 break; 3177 } 3178 3179 retval = fe->ioctl(dev, cmd, addr, flag, td); 3180 break; 3181 } 3182 case CTL_PORT_REQ: { 3183 struct ctl_req *req; 3184 struct ctl_frontend *fe; 3185 3186 req = (struct ctl_req *)addr; 3187 3188 fe = ctl_frontend_find(req->driver); 3189 if (fe == NULL) { 3190 req->status = CTL_LUN_ERROR; 3191 snprintf(req->error_str, sizeof(req->error_str), 3192 "Frontend \"%s\" not found.", req->driver); 3193 break; 3194 } 3195 if (req->num_args > 0) { 3196 req->kern_args = ctl_copyin_args(req->num_args, 3197 req->args, req->error_str, sizeof(req->error_str)); 3198 if (req->kern_args == NULL) { 3199 req->status = CTL_LUN_ERROR; 3200 break; 3201 } 3202 } 3203 3204 if (fe->ioctl) 3205 retval = fe->ioctl(dev, cmd, addr, flag, td); 3206 else 3207 retval = ENODEV; 3208 3209 if (req->num_args > 0) { 3210 ctl_copyout_args(req->num_args, req->kern_args); 3211 ctl_free_args(req->num_args, req->kern_args); 3212 } 3213 break; 3214 } 3215 case CTL_PORT_LIST: { 3216 struct sbuf *sb; 3217 struct ctl_port *port; 3218 struct ctl_lun_list *list; 3219 struct ctl_option *opt; 3220 int j; 3221 uint32_t plun; 3222 3223 list = (struct ctl_lun_list *)addr; 3224 3225 sb = sbuf_new(NULL, NULL, list->alloc_len, SBUF_FIXEDLEN); 3226 if (sb == NULL) { 3227 list->status = CTL_LUN_LIST_ERROR; 3228 snprintf(list->error_str, sizeof(list->error_str), 3229 "Unable to allocate %d bytes for LUN list", 3230 list->alloc_len); 3231 break; 3232 } 3233 3234 sbuf_printf(sb, "<ctlportlist>\n"); 3235 3236 mtx_lock(&softc->ctl_lock); 3237 STAILQ_FOREACH(port, &softc->port_list, links) { 3238 retval = sbuf_printf(sb, "<targ_port id=\"%ju\">\n", 3239 (uintmax_t)port->targ_port); 3240 3241 /* 3242 * Bail out as soon as we see that we've overfilled 3243 * the buffer. 3244 */ 3245 if (retval != 0) 3246 break; 3247 3248 retval = sbuf_printf(sb, "\t<frontend_type>%s" 3249 "</frontend_type>\n", port->frontend->name); 3250 if (retval != 0) 3251 break; 3252 3253 retval = sbuf_printf(sb, "\t<port_type>%d</port_type>\n", 3254 port->port_type); 3255 if (retval != 0) 3256 break; 3257 3258 retval = sbuf_printf(sb, "\t<online>%s</online>\n", 3259 (port->status & CTL_PORT_STATUS_ONLINE) ? "YES" : "NO"); 3260 if (retval != 0) 3261 break; 3262 3263 retval = sbuf_printf(sb, "\t<port_name>%s</port_name>\n", 3264 port->port_name); 3265 if (retval != 0) 3266 break; 3267 3268 retval = sbuf_printf(sb, "\t<physical_port>%d</physical_port>\n", 3269 port->physical_port); 3270 if (retval != 0) 3271 break; 3272 3273 retval = sbuf_printf(sb, "\t<virtual_port>%d</virtual_port>\n", 3274 port->virtual_port); 3275 if (retval != 0) 3276 break; 3277 3278 if (port->target_devid != NULL) { 3279 sbuf_printf(sb, "\t<target>"); 3280 ctl_id_sbuf(port->target_devid, sb); 3281 sbuf_printf(sb, "</target>\n"); 3282 } 3283 3284 if (port->port_devid != NULL) { 3285 sbuf_printf(sb, "\t<port>"); 3286 ctl_id_sbuf(port->port_devid, sb); 3287 sbuf_printf(sb, "</port>\n"); 3288 } 3289 3290 if (port->port_info != NULL) { 3291 retval = port->port_info(port->onoff_arg, sb); 3292 if (retval != 0) 3293 break; 3294 } 3295 STAILQ_FOREACH(opt, &port->options, links) { 3296 retval = sbuf_printf(sb, "\t<%s>%s</%s>\n", 3297 opt->name, opt->value, opt->name); 3298 if (retval != 0) 3299 break; 3300 } 3301 3302 if (port->lun_map != NULL) { 3303 sbuf_printf(sb, "\t<lun_map>on</lun_map>\n"); 3304 for (j = 0; j < CTL_MAX_LUNS; j++) { 3305 plun = ctl_lun_map_from_port(port, j); 3306 if (plun >= CTL_MAX_LUNS) 3307 continue; 3308 sbuf_printf(sb, 3309 "\t<lun id=\"%u\">%u</lun>\n", 3310 j, plun); 3311 } 3312 } 3313 3314 for (j = 0; j < CTL_MAX_INIT_PER_PORT; j++) { 3315 if (port->wwpn_iid[j].in_use == 0 || 3316 (port->wwpn_iid[j].wwpn == 0 && 3317 port->wwpn_iid[j].name == NULL)) 3318 continue; 3319 3320 if (port->wwpn_iid[j].name != NULL) 3321 retval = sbuf_printf(sb, 3322 "\t<initiator id=\"%u\">%s</initiator>\n", 3323 j, port->wwpn_iid[j].name); 3324 else 3325 retval = sbuf_printf(sb, 3326 "\t<initiator id=\"%u\">naa.%08jx</initiator>\n", 3327 j, port->wwpn_iid[j].wwpn); 3328 if (retval != 0) 3329 break; 3330 } 3331 if (retval != 0) 3332 break; 3333 3334 retval = sbuf_printf(sb, "</targ_port>\n"); 3335 if (retval != 0) 3336 break; 3337 } 3338 mtx_unlock(&softc->ctl_lock); 3339 3340 if ((retval != 0) 3341 || ((retval = sbuf_printf(sb, "</ctlportlist>\n")) != 0)) { 3342 retval = 0; 3343 sbuf_delete(sb); 3344 list->status = CTL_LUN_LIST_NEED_MORE_SPACE; 3345 snprintf(list->error_str, sizeof(list->error_str), 3346 "Out of space, %d bytes is too small", 3347 list->alloc_len); 3348 break; 3349 } 3350 3351 sbuf_finish(sb); 3352 3353 retval = copyout(sbuf_data(sb), list->lun_xml, 3354 sbuf_len(sb) + 1); 3355 3356 list->fill_len = sbuf_len(sb) + 1; 3357 list->status = CTL_LUN_LIST_OK; 3358 sbuf_delete(sb); 3359 break; 3360 } 3361 case CTL_LUN_MAP: { 3362 struct ctl_lun_map *lm = (struct ctl_lun_map *)addr; 3363 struct ctl_port *port; 3364 3365 mtx_lock(&softc->ctl_lock); 3366 if (lm->port < softc->port_min || 3367 lm->port >= softc->port_max || 3368 (port = softc->ctl_ports[lm->port]) == NULL) { 3369 mtx_unlock(&softc->ctl_lock); 3370 return (ENXIO); 3371 } 3372 if (port->status & CTL_PORT_STATUS_ONLINE) { 3373 STAILQ_FOREACH(lun, &softc->lun_list, links) { 3374 if (ctl_lun_map_to_port(port, lun->lun) >= 3375 CTL_MAX_LUNS) 3376 continue; 3377 mtx_lock(&lun->lun_lock); 3378 ctl_est_ua_port(lun, lm->port, -1, 3379 CTL_UA_LUN_CHANGE); 3380 mtx_unlock(&lun->lun_lock); 3381 } 3382 } 3383 mtx_unlock(&softc->ctl_lock); // XXX: port_enable sleeps 3384 if (lm->plun < CTL_MAX_LUNS) { 3385 if (lm->lun == UINT32_MAX) 3386 retval = ctl_lun_map_unset(port, lm->plun); 3387 else if (lm->lun < CTL_MAX_LUNS && 3388 softc->ctl_luns[lm->lun] != NULL) 3389 retval = ctl_lun_map_set(port, lm->plun, lm->lun); 3390 else 3391 return (ENXIO); 3392 } else if (lm->plun == UINT32_MAX) { 3393 if (lm->lun == UINT32_MAX) 3394 retval = ctl_lun_map_deinit(port); 3395 else 3396 retval = ctl_lun_map_init(port); 3397 } else 3398 return (ENXIO); 3399 if (port->status & CTL_PORT_STATUS_ONLINE) 3400 ctl_isc_announce_port(port); 3401 break; 3402 } 3403 default: { 3404 /* XXX KDM should we fix this? */ 3405#if 0 3406 struct ctl_backend_driver *backend; 3407 unsigned int type; 3408 int found; 3409 3410 found = 0; 3411 3412 /* 3413 * We encode the backend type as the ioctl type for backend 3414 * ioctls. So parse it out here, and then search for a 3415 * backend of this type. 3416 */ 3417 type = _IOC_TYPE(cmd); 3418 3419 STAILQ_FOREACH(backend, &softc->be_list, links) { 3420 if (backend->type == type) { 3421 found = 1; 3422 break; 3423 } 3424 } 3425 if (found == 0) { 3426 printf("ctl: unknown ioctl command %#lx or backend " 3427 "%d\n", cmd, type); 3428 retval = EINVAL; 3429 break; 3430 } 3431 retval = backend->ioctl(dev, cmd, addr, flag, td); 3432#endif 3433 retval = ENOTTY; 3434 break; 3435 } 3436 } 3437 return (retval); 3438} 3439 3440uint32_t 3441ctl_get_initindex(struct ctl_nexus *nexus) 3442{ 3443 return (nexus->initid + (nexus->targ_port * CTL_MAX_INIT_PER_PORT)); 3444} 3445 3446int 3447ctl_lun_map_init(struct ctl_port *port) 3448{ 3449 struct ctl_softc *softc = port->ctl_softc; 3450 struct ctl_lun *lun; 3451 uint32_t i; 3452 3453 if (port->lun_map == NULL) 3454 port->lun_map = malloc(sizeof(uint32_t) * CTL_MAX_LUNS, 3455 M_CTL, M_NOWAIT); 3456 if (port->lun_map == NULL) 3457 return (ENOMEM); 3458 for (i = 0; i < CTL_MAX_LUNS; i++) 3459 port->lun_map[i] = UINT32_MAX; 3460 if (port->status & CTL_PORT_STATUS_ONLINE) { 3461 if (port->lun_disable != NULL) { 3462 STAILQ_FOREACH(lun, &softc->lun_list, links) 3463 port->lun_disable(port->targ_lun_arg, lun->lun); 3464 } 3465 ctl_isc_announce_port(port); 3466 } 3467 return (0); 3468} 3469 3470int 3471ctl_lun_map_deinit(struct ctl_port *port) 3472{ 3473 struct ctl_softc *softc = port->ctl_softc; 3474 struct ctl_lun *lun; 3475 3476 if (port->lun_map == NULL) 3477 return (0); 3478 free(port->lun_map, M_CTL); 3479 port->lun_map = NULL; 3480 if (port->status & CTL_PORT_STATUS_ONLINE) { 3481 if (port->lun_enable != NULL) { 3482 STAILQ_FOREACH(lun, &softc->lun_list, links) 3483 port->lun_enable(port->targ_lun_arg, lun->lun); 3484 } 3485 ctl_isc_announce_port(port); 3486 } 3487 return (0); 3488} 3489 3490int 3491ctl_lun_map_set(struct ctl_port *port, uint32_t plun, uint32_t glun) 3492{ 3493 int status; 3494 uint32_t old; 3495 3496 if (port->lun_map == NULL) { 3497 status = ctl_lun_map_init(port); 3498 if (status != 0) 3499 return (status); 3500 } 3501 old = port->lun_map[plun]; 3502 port->lun_map[plun] = glun; 3503 if ((port->status & CTL_PORT_STATUS_ONLINE) && old >= CTL_MAX_LUNS) { 3504 if (port->lun_enable != NULL) 3505 port->lun_enable(port->targ_lun_arg, plun); 3506 ctl_isc_announce_port(port); 3507 } 3508 return (0); 3509} 3510 3511int 3512ctl_lun_map_unset(struct ctl_port *port, uint32_t plun) 3513{ 3514 uint32_t old; 3515 3516 if (port->lun_map == NULL) 3517 return (0); 3518 old = port->lun_map[plun]; 3519 port->lun_map[plun] = UINT32_MAX; 3520 if ((port->status & CTL_PORT_STATUS_ONLINE) && old < CTL_MAX_LUNS) { 3521 if (port->lun_disable != NULL) 3522 port->lun_disable(port->targ_lun_arg, plun); 3523 ctl_isc_announce_port(port); 3524 } 3525 return (0); 3526} 3527 3528uint32_t 3529ctl_lun_map_from_port(struct ctl_port *port, uint32_t lun_id) 3530{ 3531 3532 if (port == NULL) 3533 return (UINT32_MAX); 3534 if (port->lun_map == NULL || lun_id >= CTL_MAX_LUNS) 3535 return (lun_id); 3536 return (port->lun_map[lun_id]); 3537} 3538 3539uint32_t 3540ctl_lun_map_to_port(struct ctl_port *port, uint32_t lun_id) 3541{ 3542 uint32_t i; 3543 3544 if (port == NULL) 3545 return (UINT32_MAX); 3546 if (port->lun_map == NULL) 3547 return (lun_id); 3548 for (i = 0; i < CTL_MAX_LUNS; i++) { 3549 if (port->lun_map[i] == lun_id) 3550 return (i); 3551 } 3552 return (UINT32_MAX); 3553} 3554 3555uint32_t 3556ctl_decode_lun(uint64_t encoded) 3557{ 3558 uint8_t lun[8]; 3559 uint32_t result = 0xffffffff; 3560 3561 be64enc(lun, encoded); 3562 switch (lun[0] & RPL_LUNDATA_ATYP_MASK) { 3563 case RPL_LUNDATA_ATYP_PERIPH: 3564 if ((lun[0] & 0x3f) == 0 && lun[2] == 0 && lun[3] == 0 && 3565 lun[4] == 0 && lun[5] == 0 && lun[6] == 0 && lun[7] == 0) 3566 result = lun[1]; 3567 break; 3568 case RPL_LUNDATA_ATYP_FLAT: 3569 if (lun[2] == 0 && lun[3] == 0 && lun[4] == 0 && lun[5] == 0 && 3570 lun[6] == 0 && lun[7] == 0) 3571 result = ((lun[0] & 0x3f) << 8) + lun[1]; 3572 break; 3573 case RPL_LUNDATA_ATYP_EXTLUN: 3574 switch (lun[0] & RPL_LUNDATA_EXT_EAM_MASK) { 3575 case 0x02: 3576 switch (lun[0] & RPL_LUNDATA_EXT_LEN_MASK) { 3577 case 0x00: 3578 result = lun[1]; 3579 break; 3580 case 0x10: 3581 result = (lun[1] << 16) + (lun[2] << 8) + 3582 lun[3]; 3583 break; 3584 case 0x20: 3585 if (lun[1] == 0 && lun[6] == 0 && lun[7] == 0) 3586 result = (lun[2] << 24) + 3587 (lun[3] << 16) + (lun[4] << 8) + 3588 lun[5]; 3589 break; 3590 } 3591 break; 3592 case RPL_LUNDATA_EXT_EAM_NOT_SPEC: 3593 result = 0xffffffff; 3594 break; 3595 } 3596 break; 3597 } 3598 return (result); 3599} 3600 3601uint64_t 3602ctl_encode_lun(uint32_t decoded) 3603{ 3604 uint64_t l = decoded; 3605 3606 if (l <= 0xff) 3607 return (((uint64_t)RPL_LUNDATA_ATYP_PERIPH << 56) | (l << 48)); 3608 if (l <= 0x3fff) 3609 return (((uint64_t)RPL_LUNDATA_ATYP_FLAT << 56) | (l << 48)); 3610 if (l <= 0xffffff) 3611 return (((uint64_t)(RPL_LUNDATA_ATYP_EXTLUN | 0x12) << 56) | 3612 (l << 32)); 3613 return ((((uint64_t)RPL_LUNDATA_ATYP_EXTLUN | 0x22) << 56) | (l << 16)); 3614} 3615 3616static struct ctl_port * 3617ctl_io_port(struct ctl_io_hdr *io_hdr) 3618{ 3619 3620 return (control_softc->ctl_ports[io_hdr->nexus.targ_port]); 3621} 3622 3623int 3624ctl_ffz(uint32_t *mask, uint32_t first, uint32_t last) 3625{ 3626 int i; 3627 3628 for (i = first; i < last; i++) { 3629 if ((mask[i / 32] & (1 << (i % 32))) == 0) 3630 return (i); 3631 } 3632 return (-1); 3633} 3634 3635int 3636ctl_set_mask(uint32_t *mask, uint32_t bit) 3637{ 3638 uint32_t chunk, piece; 3639 3640 chunk = bit >> 5; 3641 piece = bit % (sizeof(uint32_t) * 8); 3642 3643 if ((mask[chunk] & (1 << piece)) != 0) 3644 return (-1); 3645 else 3646 mask[chunk] |= (1 << piece); 3647 3648 return (0); 3649} 3650 3651int 3652ctl_clear_mask(uint32_t *mask, uint32_t bit) 3653{ 3654 uint32_t chunk, piece; 3655 3656 chunk = bit >> 5; 3657 piece = bit % (sizeof(uint32_t) * 8); 3658 3659 if ((mask[chunk] & (1 << piece)) == 0) 3660 return (-1); 3661 else 3662 mask[chunk] &= ~(1 << piece); 3663 3664 return (0); 3665} 3666 3667int 3668ctl_is_set(uint32_t *mask, uint32_t bit) 3669{ 3670 uint32_t chunk, piece; 3671 3672 chunk = bit >> 5; 3673 piece = bit % (sizeof(uint32_t) * 8); 3674 3675 if ((mask[chunk] & (1 << piece)) == 0) 3676 return (0); 3677 else 3678 return (1); 3679} 3680 3681static uint64_t 3682ctl_get_prkey(struct ctl_lun *lun, uint32_t residx) 3683{ 3684 uint64_t *t; 3685 3686 t = lun->pr_keys[residx/CTL_MAX_INIT_PER_PORT]; 3687 if (t == NULL) 3688 return (0); 3689 return (t[residx % CTL_MAX_INIT_PER_PORT]); 3690} 3691 3692static void 3693ctl_clr_prkey(struct ctl_lun *lun, uint32_t residx) 3694{ 3695 uint64_t *t; 3696 3697 t = lun->pr_keys[residx/CTL_MAX_INIT_PER_PORT]; 3698 if (t == NULL) 3699 return; 3700 t[residx % CTL_MAX_INIT_PER_PORT] = 0; 3701} 3702 3703static void 3704ctl_alloc_prkey(struct ctl_lun *lun, uint32_t residx) 3705{ 3706 uint64_t *p; 3707 u_int i; 3708 3709 i = residx/CTL_MAX_INIT_PER_PORT; 3710 if (lun->pr_keys[i] != NULL) 3711 return; 3712 mtx_unlock(&lun->lun_lock); 3713 p = malloc(sizeof(uint64_t) * CTL_MAX_INIT_PER_PORT, M_CTL, 3714 M_WAITOK | M_ZERO); 3715 mtx_lock(&lun->lun_lock); 3716 if (lun->pr_keys[i] == NULL) 3717 lun->pr_keys[i] = p; 3718 else 3719 free(p, M_CTL); 3720} 3721 3722static void 3723ctl_set_prkey(struct ctl_lun *lun, uint32_t residx, uint64_t key) 3724{ 3725 uint64_t *t; 3726 3727 t = lun->pr_keys[residx/CTL_MAX_INIT_PER_PORT]; 3728 KASSERT(t != NULL, ("prkey %d is not allocated", residx)); 3729 t[residx % CTL_MAX_INIT_PER_PORT] = key; 3730} 3731 3732/* 3733 * ctl_softc, pool_name, total_ctl_io are passed in. 3734 * npool is passed out. 3735 */ 3736int 3737ctl_pool_create(struct ctl_softc *ctl_softc, const char *pool_name, 3738 uint32_t total_ctl_io, void **npool) 3739{ 3740#ifdef IO_POOLS 3741 struct ctl_io_pool *pool; 3742 3743 pool = (struct ctl_io_pool *)malloc(sizeof(*pool), M_CTL, 3744 M_NOWAIT | M_ZERO); 3745 if (pool == NULL) 3746 return (ENOMEM); 3747 3748 snprintf(pool->name, sizeof(pool->name), "CTL IO %s", pool_name); 3749 pool->ctl_softc = ctl_softc; 3750 pool->zone = uma_zsecond_create(pool->name, NULL, 3751 NULL, NULL, NULL, ctl_softc->io_zone); 3752 /* uma_prealloc(pool->zone, total_ctl_io); */ 3753 3754 *npool = pool; 3755#else 3756 *npool = ctl_softc->io_zone; 3757#endif 3758 return (0); 3759} 3760 3761void 3762ctl_pool_free(struct ctl_io_pool *pool) 3763{ 3764 3765 if (pool == NULL) 3766 return; 3767 3768#ifdef IO_POOLS 3769 uma_zdestroy(pool->zone); 3770 free(pool, M_CTL); 3771#endif 3772} 3773 3774union ctl_io * 3775ctl_alloc_io(void *pool_ref) 3776{ 3777 union ctl_io *io; 3778#ifdef IO_POOLS 3779 struct ctl_io_pool *pool = (struct ctl_io_pool *)pool_ref; 3780 3781 io = uma_zalloc(pool->zone, M_WAITOK); 3782#else 3783 io = uma_zalloc((uma_zone_t)pool_ref, M_WAITOK); 3784#endif 3785 if (io != NULL) 3786 io->io_hdr.pool = pool_ref; 3787 return (io); 3788} 3789 3790union ctl_io * 3791ctl_alloc_io_nowait(void *pool_ref) 3792{ 3793 union ctl_io *io; 3794#ifdef IO_POOLS 3795 struct ctl_io_pool *pool = (struct ctl_io_pool *)pool_ref; 3796 3797 io = uma_zalloc(pool->zone, M_NOWAIT); 3798#else 3799 io = uma_zalloc((uma_zone_t)pool_ref, M_NOWAIT); 3800#endif 3801 if (io != NULL) 3802 io->io_hdr.pool = pool_ref; 3803 return (io); 3804} 3805 3806void 3807ctl_free_io(union ctl_io *io) 3808{ 3809#ifdef IO_POOLS 3810 struct ctl_io_pool *pool; 3811#endif 3812 3813 if (io == NULL) 3814 return; 3815 3816#ifdef IO_POOLS 3817 pool = (struct ctl_io_pool *)io->io_hdr.pool; 3818 uma_zfree(pool->zone, io); 3819#else 3820 uma_zfree((uma_zone_t)io->io_hdr.pool, io); 3821#endif 3822} 3823 3824void 3825ctl_zero_io(union ctl_io *io) 3826{ 3827 void *pool_ref; 3828 3829 if (io == NULL) 3830 return; 3831 3832 /* 3833 * May need to preserve linked list pointers at some point too. 3834 */ 3835 pool_ref = io->io_hdr.pool; 3836 memset(io, 0, sizeof(*io)); 3837 io->io_hdr.pool = pool_ref; 3838} 3839 3840int 3841ctl_expand_number(const char *buf, uint64_t *num) 3842{ 3843 char *endptr; 3844 uint64_t number; 3845 unsigned shift; 3846 3847 number = strtoq(buf, &endptr, 0); 3848 3849 switch (tolower((unsigned char)*endptr)) { 3850 case 'e': 3851 shift = 60; 3852 break; 3853 case 'p': 3854 shift = 50; 3855 break; 3856 case 't': 3857 shift = 40; 3858 break; 3859 case 'g': 3860 shift = 30; 3861 break; 3862 case 'm': 3863 shift = 20; 3864 break; 3865 case 'k': 3866 shift = 10; 3867 break; 3868 case 'b': 3869 case '\0': /* No unit. */ 3870 *num = number; 3871 return (0); 3872 default: 3873 /* Unrecognized unit. */ 3874 return (-1); 3875 } 3876 3877 if ((number << shift) >> shift != number) { 3878 /* Overflow */ 3879 return (-1); 3880 } 3881 *num = number << shift; 3882 return (0); 3883} 3884 3885 3886/* 3887 * This routine could be used in the future to load default and/or saved 3888 * mode page parameters for a particuar lun. 3889 */ 3890static int 3891ctl_init_page_index(struct ctl_lun *lun) 3892{ 3893 int i, page_code; 3894 struct ctl_page_index *page_index; 3895 const char *value; 3896 uint64_t ival; 3897 3898 memcpy(&lun->mode_pages.index, page_index_template, 3899 sizeof(page_index_template)); 3900 3901 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 3902 3903 page_index = &lun->mode_pages.index[i]; 3904 if (lun->be_lun->lun_type == T_DIRECT && 3905 (page_index->page_flags & CTL_PAGE_FLAG_DIRECT) == 0) 3906 continue; 3907 if (lun->be_lun->lun_type == T_PROCESSOR && 3908 (page_index->page_flags & CTL_PAGE_FLAG_PROC) == 0) 3909 continue; 3910 if (lun->be_lun->lun_type == T_CDROM && 3911 (page_index->page_flags & CTL_PAGE_FLAG_CDROM) == 0) 3912 continue; 3913 3914 page_code = page_index->page_code & SMPH_PC_MASK; 3915 switch (page_code) { 3916 case SMS_RW_ERROR_RECOVERY_PAGE: { 3917 KASSERT(page_index->subpage == SMS_SUBPAGE_PAGE_0, 3918 ("subpage %#x for page %#x is incorrect!", 3919 page_index->subpage, page_code)); 3920 memcpy(&lun->mode_pages.rw_er_page[CTL_PAGE_CURRENT], 3921 &rw_er_page_default, 3922 sizeof(rw_er_page_default)); 3923 memcpy(&lun->mode_pages.rw_er_page[CTL_PAGE_CHANGEABLE], 3924 &rw_er_page_changeable, 3925 sizeof(rw_er_page_changeable)); 3926 memcpy(&lun->mode_pages.rw_er_page[CTL_PAGE_DEFAULT], 3927 &rw_er_page_default, 3928 sizeof(rw_er_page_default)); 3929 memcpy(&lun->mode_pages.rw_er_page[CTL_PAGE_SAVED], 3930 &rw_er_page_default, 3931 sizeof(rw_er_page_default)); 3932 page_index->page_data = 3933 (uint8_t *)lun->mode_pages.rw_er_page; 3934 break; 3935 } 3936 case SMS_FORMAT_DEVICE_PAGE: { 3937 struct scsi_format_page *format_page; 3938 3939 KASSERT(page_index->subpage == SMS_SUBPAGE_PAGE_0, 3940 ("subpage %#x for page %#x is incorrect!", 3941 page_index->subpage, page_code)); 3942 3943 /* 3944 * Sectors per track are set above. Bytes per 3945 * sector need to be set here on a per-LUN basis. 3946 */ 3947 memcpy(&lun->mode_pages.format_page[CTL_PAGE_CURRENT], 3948 &format_page_default, 3949 sizeof(format_page_default)); 3950 memcpy(&lun->mode_pages.format_page[ 3951 CTL_PAGE_CHANGEABLE], &format_page_changeable, 3952 sizeof(format_page_changeable)); 3953 memcpy(&lun->mode_pages.format_page[CTL_PAGE_DEFAULT], 3954 &format_page_default, 3955 sizeof(format_page_default)); 3956 memcpy(&lun->mode_pages.format_page[CTL_PAGE_SAVED], 3957 &format_page_default, 3958 sizeof(format_page_default)); 3959 3960 format_page = &lun->mode_pages.format_page[ 3961 CTL_PAGE_CURRENT]; 3962 scsi_ulto2b(lun->be_lun->blocksize, 3963 format_page->bytes_per_sector); 3964 3965 format_page = &lun->mode_pages.format_page[ 3966 CTL_PAGE_DEFAULT]; 3967 scsi_ulto2b(lun->be_lun->blocksize, 3968 format_page->bytes_per_sector); 3969 3970 format_page = &lun->mode_pages.format_page[ 3971 CTL_PAGE_SAVED]; 3972 scsi_ulto2b(lun->be_lun->blocksize, 3973 format_page->bytes_per_sector); 3974 3975 page_index->page_data = 3976 (uint8_t *)lun->mode_pages.format_page; 3977 break; 3978 } 3979 case SMS_RIGID_DISK_PAGE: { 3980 struct scsi_rigid_disk_page *rigid_disk_page; 3981 uint32_t sectors_per_cylinder; 3982 uint64_t cylinders; 3983#ifndef __XSCALE__ 3984 int shift; 3985#endif /* !__XSCALE__ */ 3986 3987 KASSERT(page_index->subpage == SMS_SUBPAGE_PAGE_0, 3988 ("subpage %#x for page %#x is incorrect!", 3989 page_index->subpage, page_code)); 3990 3991 /* 3992 * Rotation rate and sectors per track are set 3993 * above. We calculate the cylinders here based on 3994 * capacity. Due to the number of heads and 3995 * sectors per track we're using, smaller arrays 3996 * may turn out to have 0 cylinders. Linux and 3997 * FreeBSD don't pay attention to these mode pages 3998 * to figure out capacity, but Solaris does. It 3999 * seems to deal with 0 cylinders just fine, and 4000 * works out a fake geometry based on the capacity. 4001 */ 4002 memcpy(&lun->mode_pages.rigid_disk_page[ 4003 CTL_PAGE_DEFAULT], &rigid_disk_page_default, 4004 sizeof(rigid_disk_page_default)); 4005 memcpy(&lun->mode_pages.rigid_disk_page[ 4006 CTL_PAGE_CHANGEABLE],&rigid_disk_page_changeable, 4007 sizeof(rigid_disk_page_changeable)); 4008 4009 sectors_per_cylinder = CTL_DEFAULT_SECTORS_PER_TRACK * 4010 CTL_DEFAULT_HEADS; 4011 4012 /* 4013 * The divide method here will be more accurate, 4014 * probably, but results in floating point being 4015 * used in the kernel on i386 (__udivdi3()). On the 4016 * XScale, though, __udivdi3() is implemented in 4017 * software. 4018 * 4019 * The shift method for cylinder calculation is 4020 * accurate if sectors_per_cylinder is a power of 4021 * 2. Otherwise it might be slightly off -- you 4022 * might have a bit of a truncation problem. 4023 */ 4024#ifdef __XSCALE__ 4025 cylinders = (lun->be_lun->maxlba + 1) / 4026 sectors_per_cylinder; 4027#else 4028 for (shift = 31; shift > 0; shift--) { 4029 if (sectors_per_cylinder & (1 << shift)) 4030 break; 4031 } 4032 cylinders = (lun->be_lun->maxlba + 1) >> shift; 4033#endif 4034 4035 /* 4036 * We've basically got 3 bytes, or 24 bits for the 4037 * cylinder size in the mode page. If we're over, 4038 * just round down to 2^24. 4039 */ 4040 if (cylinders > 0xffffff) 4041 cylinders = 0xffffff; 4042 4043 rigid_disk_page = &lun->mode_pages.rigid_disk_page[ 4044 CTL_PAGE_DEFAULT]; 4045 scsi_ulto3b(cylinders, rigid_disk_page->cylinders); 4046 4047 if ((value = ctl_get_opt(&lun->be_lun->options, 4048 "rpm")) != NULL) { 4049 scsi_ulto2b(strtol(value, NULL, 0), 4050 rigid_disk_page->rotation_rate); 4051 } 4052 4053 memcpy(&lun->mode_pages.rigid_disk_page[CTL_PAGE_CURRENT], 4054 &lun->mode_pages.rigid_disk_page[CTL_PAGE_DEFAULT], 4055 sizeof(rigid_disk_page_default)); 4056 memcpy(&lun->mode_pages.rigid_disk_page[CTL_PAGE_SAVED], 4057 &lun->mode_pages.rigid_disk_page[CTL_PAGE_DEFAULT], 4058 sizeof(rigid_disk_page_default)); 4059 4060 page_index->page_data = 4061 (uint8_t *)lun->mode_pages.rigid_disk_page; 4062 break; 4063 } 4064 case SMS_VERIFY_ERROR_RECOVERY_PAGE: { 4065 KASSERT(page_index->subpage == SMS_SUBPAGE_PAGE_0, 4066 ("subpage %#x for page %#x is incorrect!", 4067 page_index->subpage, page_code)); 4068 memcpy(&lun->mode_pages.verify_er_page[CTL_PAGE_CURRENT], 4069 &verify_er_page_default, 4070 sizeof(verify_er_page_default)); 4071 memcpy(&lun->mode_pages.verify_er_page[CTL_PAGE_CHANGEABLE], 4072 &verify_er_page_changeable, 4073 sizeof(verify_er_page_changeable)); 4074 memcpy(&lun->mode_pages.verify_er_page[CTL_PAGE_DEFAULT], 4075 &verify_er_page_default, 4076 sizeof(verify_er_page_default)); 4077 memcpy(&lun->mode_pages.verify_er_page[CTL_PAGE_SAVED], 4078 &verify_er_page_default, 4079 sizeof(verify_er_page_default)); 4080 page_index->page_data = 4081 (uint8_t *)lun->mode_pages.verify_er_page; 4082 break; 4083 } 4084 case SMS_CACHING_PAGE: { 4085 struct scsi_caching_page *caching_page; 4086 4087 KASSERT(page_index->subpage == SMS_SUBPAGE_PAGE_0, 4088 ("subpage %#x for page %#x is incorrect!", 4089 page_index->subpage, page_code)); 4090 memcpy(&lun->mode_pages.caching_page[CTL_PAGE_DEFAULT], 4091 &caching_page_default, 4092 sizeof(caching_page_default)); 4093 memcpy(&lun->mode_pages.caching_page[ 4094 CTL_PAGE_CHANGEABLE], &caching_page_changeable, 4095 sizeof(caching_page_changeable)); 4096 memcpy(&lun->mode_pages.caching_page[CTL_PAGE_SAVED], 4097 &caching_page_default, 4098 sizeof(caching_page_default)); 4099 caching_page = &lun->mode_pages.caching_page[ 4100 CTL_PAGE_SAVED]; 4101 value = ctl_get_opt(&lun->be_lun->options, "writecache"); 4102 if (value != NULL && strcmp(value, "off") == 0) 4103 caching_page->flags1 &= ~SCP_WCE; 4104 value = ctl_get_opt(&lun->be_lun->options, "readcache"); 4105 if (value != NULL && strcmp(value, "off") == 0) 4106 caching_page->flags1 |= SCP_RCD; 4107 memcpy(&lun->mode_pages.caching_page[CTL_PAGE_CURRENT], 4108 &lun->mode_pages.caching_page[CTL_PAGE_SAVED], 4109 sizeof(caching_page_default)); 4110 page_index->page_data = 4111 (uint8_t *)lun->mode_pages.caching_page; 4112 break; 4113 } 4114 case SMS_CONTROL_MODE_PAGE: { 4115 switch (page_index->subpage) { 4116 case SMS_SUBPAGE_PAGE_0: { 4117 struct scsi_control_page *control_page; 4118 4119 memcpy(&lun->mode_pages.control_page[ 4120 CTL_PAGE_DEFAULT], 4121 &control_page_default, 4122 sizeof(control_page_default)); 4123 memcpy(&lun->mode_pages.control_page[ 4124 CTL_PAGE_CHANGEABLE], 4125 &control_page_changeable, 4126 sizeof(control_page_changeable)); 4127 memcpy(&lun->mode_pages.control_page[ 4128 CTL_PAGE_SAVED], 4129 &control_page_default, 4130 sizeof(control_page_default)); 4131 control_page = &lun->mode_pages.control_page[ 4132 CTL_PAGE_SAVED]; 4133 value = ctl_get_opt(&lun->be_lun->options, 4134 "reordering"); 4135 if (value != NULL && 4136 strcmp(value, "unrestricted") == 0) { 4137 control_page->queue_flags &= 4138 ~SCP_QUEUE_ALG_MASK; 4139 control_page->queue_flags |= 4140 SCP_QUEUE_ALG_UNRESTRICTED; 4141 } 4142 memcpy(&lun->mode_pages.control_page[ 4143 CTL_PAGE_CURRENT], 4144 &lun->mode_pages.control_page[ 4145 CTL_PAGE_SAVED], 4146 sizeof(control_page_default)); 4147 page_index->page_data = 4148 (uint8_t *)lun->mode_pages.control_page; 4149 break; 4150 } 4151 case 0x01: 4152 memcpy(&lun->mode_pages.control_ext_page[ 4153 CTL_PAGE_DEFAULT], 4154 &control_ext_page_default, 4155 sizeof(control_ext_page_default)); 4156 memcpy(&lun->mode_pages.control_ext_page[ 4157 CTL_PAGE_CHANGEABLE], 4158 &control_ext_page_changeable, 4159 sizeof(control_ext_page_changeable)); 4160 memcpy(&lun->mode_pages.control_ext_page[ 4161 CTL_PAGE_SAVED], 4162 &control_ext_page_default, 4163 sizeof(control_ext_page_default)); 4164 memcpy(&lun->mode_pages.control_ext_page[ 4165 CTL_PAGE_CURRENT], 4166 &lun->mode_pages.control_ext_page[ 4167 CTL_PAGE_SAVED], 4168 sizeof(control_ext_page_default)); 4169 page_index->page_data = 4170 (uint8_t *)lun->mode_pages.control_ext_page; 4171 break; 4172 default: 4173 panic("subpage %#x for page %#x is incorrect!", 4174 page_index->subpage, page_code); 4175 } 4176 break; 4177 } 4178 case SMS_INFO_EXCEPTIONS_PAGE: { 4179 switch (page_index->subpage) { 4180 case SMS_SUBPAGE_PAGE_0: 4181 memcpy(&lun->mode_pages.ie_page[CTL_PAGE_CURRENT], 4182 &ie_page_default, 4183 sizeof(ie_page_default)); 4184 memcpy(&lun->mode_pages.ie_page[ 4185 CTL_PAGE_CHANGEABLE], &ie_page_changeable, 4186 sizeof(ie_page_changeable)); 4187 memcpy(&lun->mode_pages.ie_page[CTL_PAGE_DEFAULT], 4188 &ie_page_default, 4189 sizeof(ie_page_default)); 4190 memcpy(&lun->mode_pages.ie_page[CTL_PAGE_SAVED], 4191 &ie_page_default, 4192 sizeof(ie_page_default)); 4193 page_index->page_data = 4194 (uint8_t *)lun->mode_pages.ie_page; 4195 break; 4196 case 0x02: { 4197 struct ctl_logical_block_provisioning_page *page; 4198 4199 memcpy(&lun->mode_pages.lbp_page[CTL_PAGE_DEFAULT], 4200 &lbp_page_default, 4201 sizeof(lbp_page_default)); 4202 memcpy(&lun->mode_pages.lbp_page[ 4203 CTL_PAGE_CHANGEABLE], &lbp_page_changeable, 4204 sizeof(lbp_page_changeable)); 4205 memcpy(&lun->mode_pages.lbp_page[CTL_PAGE_SAVED], 4206 &lbp_page_default, 4207 sizeof(lbp_page_default)); 4208 page = &lun->mode_pages.lbp_page[CTL_PAGE_SAVED]; 4209 value = ctl_get_opt(&lun->be_lun->options, 4210 "avail-threshold"); 4211 if (value != NULL && 4212 ctl_expand_number(value, &ival) == 0) { 4213 page->descr[0].flags |= SLBPPD_ENABLED | 4214 SLBPPD_ARMING_DEC; 4215 if (lun->be_lun->blocksize) 4216 ival /= lun->be_lun->blocksize; 4217 else 4218 ival /= 512; 4219 scsi_ulto4b(ival >> CTL_LBP_EXPONENT, 4220 page->descr[0].count); 4221 } 4222 value = ctl_get_opt(&lun->be_lun->options, 4223 "used-threshold"); 4224 if (value != NULL && 4225 ctl_expand_number(value, &ival) == 0) { 4226 page->descr[1].flags |= SLBPPD_ENABLED | 4227 SLBPPD_ARMING_INC; 4228 if (lun->be_lun->blocksize) 4229 ival /= lun->be_lun->blocksize; 4230 else 4231 ival /= 512; 4232 scsi_ulto4b(ival >> CTL_LBP_EXPONENT, 4233 page->descr[1].count); 4234 } 4235 value = ctl_get_opt(&lun->be_lun->options, 4236 "pool-avail-threshold"); 4237 if (value != NULL && 4238 ctl_expand_number(value, &ival) == 0) { 4239 page->descr[2].flags |= SLBPPD_ENABLED | 4240 SLBPPD_ARMING_DEC; 4241 if (lun->be_lun->blocksize) 4242 ival /= lun->be_lun->blocksize; 4243 else 4244 ival /= 512; 4245 scsi_ulto4b(ival >> CTL_LBP_EXPONENT, 4246 page->descr[2].count); 4247 } 4248 value = ctl_get_opt(&lun->be_lun->options, 4249 "pool-used-threshold"); 4250 if (value != NULL && 4251 ctl_expand_number(value, &ival) == 0) { 4252 page->descr[3].flags |= SLBPPD_ENABLED | 4253 SLBPPD_ARMING_INC; 4254 if (lun->be_lun->blocksize) 4255 ival /= lun->be_lun->blocksize; 4256 else 4257 ival /= 512; 4258 scsi_ulto4b(ival >> CTL_LBP_EXPONENT, 4259 page->descr[3].count); 4260 } 4261 memcpy(&lun->mode_pages.lbp_page[CTL_PAGE_CURRENT], 4262 &lun->mode_pages.lbp_page[CTL_PAGE_SAVED], 4263 sizeof(lbp_page_default)); 4264 page_index->page_data = 4265 (uint8_t *)lun->mode_pages.lbp_page; 4266 break; 4267 } 4268 default: 4269 panic("subpage %#x for page %#x is incorrect!", 4270 page_index->subpage, page_code); 4271 } 4272 break; 4273 } 4274 case SMS_CDDVD_CAPS_PAGE:{ 4275 KASSERT(page_index->subpage == SMS_SUBPAGE_PAGE_0, 4276 ("subpage %#x for page %#x is incorrect!", 4277 page_index->subpage, page_code)); 4278 memcpy(&lun->mode_pages.cddvd_page[CTL_PAGE_DEFAULT], 4279 &cddvd_page_default, 4280 sizeof(cddvd_page_default)); 4281 memcpy(&lun->mode_pages.cddvd_page[ 4282 CTL_PAGE_CHANGEABLE], &cddvd_page_changeable, 4283 sizeof(cddvd_page_changeable)); 4284 memcpy(&lun->mode_pages.cddvd_page[CTL_PAGE_SAVED], 4285 &cddvd_page_default, 4286 sizeof(cddvd_page_default)); 4287 memcpy(&lun->mode_pages.cddvd_page[CTL_PAGE_CURRENT], 4288 &lun->mode_pages.cddvd_page[CTL_PAGE_SAVED], 4289 sizeof(cddvd_page_default)); 4290 page_index->page_data = 4291 (uint8_t *)lun->mode_pages.cddvd_page; 4292 break; 4293 } 4294 default: 4295 panic("invalid page code value %#x", page_code); 4296 } 4297 } 4298 4299 return (CTL_RETVAL_COMPLETE); 4300} 4301 4302static int 4303ctl_init_log_page_index(struct ctl_lun *lun) 4304{ 4305 struct ctl_page_index *page_index; 4306 int i, j, k, prev; 4307 4308 memcpy(&lun->log_pages.index, log_page_index_template, 4309 sizeof(log_page_index_template)); 4310 4311 prev = -1; 4312 for (i = 0, j = 0, k = 0; i < CTL_NUM_LOG_PAGES; i++) { 4313 4314 page_index = &lun->log_pages.index[i]; 4315 if (lun->be_lun->lun_type == T_DIRECT && 4316 (page_index->page_flags & CTL_PAGE_FLAG_DIRECT) == 0) 4317 continue; 4318 if (lun->be_lun->lun_type == T_PROCESSOR && 4319 (page_index->page_flags & CTL_PAGE_FLAG_PROC) == 0) 4320 continue; 4321 if (lun->be_lun->lun_type == T_CDROM && 4322 (page_index->page_flags & CTL_PAGE_FLAG_CDROM) == 0) 4323 continue; 4324 4325 if (page_index->page_code == SLS_LOGICAL_BLOCK_PROVISIONING && 4326 lun->backend->lun_attr == NULL) 4327 continue; 4328 4329 if (page_index->page_code != prev) { 4330 lun->log_pages.pages_page[j] = page_index->page_code; 4331 prev = page_index->page_code; 4332 j++; 4333 } 4334 lun->log_pages.subpages_page[k*2] = page_index->page_code; 4335 lun->log_pages.subpages_page[k*2+1] = page_index->subpage; 4336 k++; 4337 } 4338 lun->log_pages.index[0].page_data = &lun->log_pages.pages_page[0]; 4339 lun->log_pages.index[0].page_len = j; 4340 lun->log_pages.index[1].page_data = &lun->log_pages.subpages_page[0]; 4341 lun->log_pages.index[1].page_len = k * 2; 4342 lun->log_pages.index[2].page_data = &lun->log_pages.lbp_page[0]; 4343 lun->log_pages.index[2].page_len = 12*CTL_NUM_LBP_PARAMS; 4344 lun->log_pages.index[3].page_data = (uint8_t *)&lun->log_pages.stat_page; 4345 lun->log_pages.index[3].page_len = sizeof(lun->log_pages.stat_page); 4346 lun->log_pages.index[4].page_data = (uint8_t *)&lun->log_pages.ie_page; 4347 lun->log_pages.index[4].page_len = sizeof(lun->log_pages.ie_page); 4348 4349 return (CTL_RETVAL_COMPLETE); 4350} 4351 4352static int 4353hex2bin(const char *str, uint8_t *buf, int buf_size) 4354{ 4355 int i; 4356 u_char c; 4357 4358 memset(buf, 0, buf_size); 4359 while (isspace(str[0])) 4360 str++; 4361 if (str[0] == '0' && (str[1] == 'x' || str[1] == 'X')) 4362 str += 2; 4363 buf_size *= 2; 4364 for (i = 0; str[i] != 0 && i < buf_size; i++) { 4365 c = str[i]; 4366 if (isdigit(c)) 4367 c -= '0'; 4368 else if (isalpha(c)) 4369 c -= isupper(c) ? 'A' - 10 : 'a' - 10; 4370 else 4371 break; 4372 if (c >= 16) 4373 break; 4374 if ((i & 1) == 0) 4375 buf[i / 2] |= (c << 4); 4376 else 4377 buf[i / 2] |= c; 4378 } 4379 return ((i + 1) / 2); 4380} 4381 4382/* 4383 * LUN allocation. 4384 * 4385 * Requirements: 4386 * - caller allocates and zeros LUN storage, or passes in a NULL LUN if he 4387 * wants us to allocate the LUN and he can block. 4388 * - ctl_softc is always set 4389 * - be_lun is set if the LUN has a backend (needed for disk LUNs) 4390 * 4391 * Returns 0 for success, non-zero (errno) for failure. 4392 */ 4393static int 4394ctl_alloc_lun(struct ctl_softc *ctl_softc, struct ctl_lun *ctl_lun, 4395 struct ctl_be_lun *const be_lun) 4396{ 4397 struct ctl_lun *nlun, *lun; 4398 struct scsi_vpd_id_descriptor *desc; 4399 struct scsi_vpd_id_t10 *t10id; 4400 const char *eui, *naa, *scsiname, *vendor, *value; 4401 int lun_number, i, lun_malloced; 4402 int devidlen, idlen1, idlen2 = 0, len; 4403 4404 if (be_lun == NULL) 4405 return (EINVAL); 4406 4407 /* 4408 * We currently only support Direct Access or Processor LUN types. 4409 */ 4410 switch (be_lun->lun_type) { 4411 case T_DIRECT: 4412 case T_PROCESSOR: 4413 case T_CDROM: 4414 break; 4415 case T_SEQUENTIAL: 4416 case T_CHANGER: 4417 default: 4418 be_lun->lun_config_status(be_lun->be_lun, 4419 CTL_LUN_CONFIG_FAILURE); 4420 break; 4421 } 4422 if (ctl_lun == NULL) { 4423 lun = malloc(sizeof(*lun), M_CTL, M_WAITOK); 4424 lun_malloced = 1; 4425 } else { 4426 lun_malloced = 0; 4427 lun = ctl_lun; 4428 } 4429 4430 memset(lun, 0, sizeof(*lun)); 4431 if (lun_malloced) 4432 lun->flags = CTL_LUN_MALLOCED; 4433 4434 /* Generate LUN ID. */ 4435 devidlen = max(CTL_DEVID_MIN_LEN, 4436 strnlen(be_lun->device_id, CTL_DEVID_LEN)); 4437 idlen1 = sizeof(*t10id) + devidlen; 4438 len = sizeof(struct scsi_vpd_id_descriptor) + idlen1; 4439 scsiname = ctl_get_opt(&be_lun->options, "scsiname"); 4440 if (scsiname != NULL) { 4441 idlen2 = roundup2(strlen(scsiname) + 1, 4); 4442 len += sizeof(struct scsi_vpd_id_descriptor) + idlen2; 4443 } 4444 eui = ctl_get_opt(&be_lun->options, "eui"); 4445 if (eui != NULL) { 4446 len += sizeof(struct scsi_vpd_id_descriptor) + 16; 4447 } 4448 naa = ctl_get_opt(&be_lun->options, "naa"); 4449 if (naa != NULL) { 4450 len += sizeof(struct scsi_vpd_id_descriptor) + 16; 4451 } 4452 lun->lun_devid = malloc(sizeof(struct ctl_devid) + len, 4453 M_CTL, M_WAITOK | M_ZERO); 4454 desc = (struct scsi_vpd_id_descriptor *)lun->lun_devid->data; 4455 desc->proto_codeset = SVPD_ID_CODESET_ASCII; 4456 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | SVPD_ID_TYPE_T10; 4457 desc->length = idlen1; 4458 t10id = (struct scsi_vpd_id_t10 *)&desc->identifier[0]; 4459 memset(t10id->vendor, ' ', sizeof(t10id->vendor)); 4460 if ((vendor = ctl_get_opt(&be_lun->options, "vendor")) == NULL) { 4461 strncpy((char *)t10id->vendor, CTL_VENDOR, sizeof(t10id->vendor)); 4462 } else { 4463 strncpy(t10id->vendor, vendor, 4464 min(sizeof(t10id->vendor), strlen(vendor))); 4465 } 4466 strncpy((char *)t10id->vendor_spec_id, 4467 (char *)be_lun->device_id, devidlen); 4468 if (scsiname != NULL) { 4469 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 4470 desc->length); 4471 desc->proto_codeset = SVPD_ID_CODESET_UTF8; 4472 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | 4473 SVPD_ID_TYPE_SCSI_NAME; 4474 desc->length = idlen2; 4475 strlcpy(desc->identifier, scsiname, idlen2); 4476 } 4477 if (eui != NULL) { 4478 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 4479 desc->length); 4480 desc->proto_codeset = SVPD_ID_CODESET_BINARY; 4481 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | 4482 SVPD_ID_TYPE_EUI64; 4483 desc->length = hex2bin(eui, desc->identifier, 16); 4484 desc->length = desc->length > 12 ? 16 : 4485 (desc->length > 8 ? 12 : 8); 4486 len -= 16 - desc->length; 4487 } 4488 if (naa != NULL) { 4489 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 4490 desc->length); 4491 desc->proto_codeset = SVPD_ID_CODESET_BINARY; 4492 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | 4493 SVPD_ID_TYPE_NAA; 4494 desc->length = hex2bin(naa, desc->identifier, 16); 4495 desc->length = desc->length > 8 ? 16 : 8; 4496 len -= 16 - desc->length; 4497 } 4498 lun->lun_devid->len = len; 4499 4500 mtx_lock(&ctl_softc->ctl_lock); 4501 /* 4502 * See if the caller requested a particular LUN number. If so, see 4503 * if it is available. Otherwise, allocate the first available LUN. 4504 */ 4505 if (be_lun->flags & CTL_LUN_FLAG_ID_REQ) { 4506 if ((be_lun->req_lun_id > (CTL_MAX_LUNS - 1)) 4507 || (ctl_is_set(ctl_softc->ctl_lun_mask, be_lun->req_lun_id))) { 4508 mtx_unlock(&ctl_softc->ctl_lock); 4509 if (be_lun->req_lun_id > (CTL_MAX_LUNS - 1)) { 4510 printf("ctl: requested LUN ID %d is higher " 4511 "than CTL_MAX_LUNS - 1 (%d)\n", 4512 be_lun->req_lun_id, CTL_MAX_LUNS - 1); 4513 } else { 4514 /* 4515 * XXX KDM return an error, or just assign 4516 * another LUN ID in this case?? 4517 */ 4518 printf("ctl: requested LUN ID %d is already " 4519 "in use\n", be_lun->req_lun_id); 4520 } 4521 if (lun->flags & CTL_LUN_MALLOCED) 4522 free(lun, M_CTL); 4523 be_lun->lun_config_status(be_lun->be_lun, 4524 CTL_LUN_CONFIG_FAILURE); 4525 return (ENOSPC); 4526 } 4527 lun_number = be_lun->req_lun_id; 4528 } else { 4529 lun_number = ctl_ffz(ctl_softc->ctl_lun_mask, 0, CTL_MAX_LUNS); 4530 if (lun_number == -1) { 4531 mtx_unlock(&ctl_softc->ctl_lock); 4532 printf("ctl: can't allocate LUN, out of LUNs\n"); 4533 if (lun->flags & CTL_LUN_MALLOCED) 4534 free(lun, M_CTL); 4535 be_lun->lun_config_status(be_lun->be_lun, 4536 CTL_LUN_CONFIG_FAILURE); 4537 return (ENOSPC); 4538 } 4539 } 4540 ctl_set_mask(ctl_softc->ctl_lun_mask, lun_number); 4541 4542 mtx_init(&lun->lun_lock, "CTL LUN", NULL, MTX_DEF); 4543 lun->lun = lun_number; 4544 lun->be_lun = be_lun; 4545 /* 4546 * The processor LUN is always enabled. Disk LUNs come on line 4547 * disabled, and must be enabled by the backend. 4548 */ 4549 lun->flags |= CTL_LUN_DISABLED; 4550 lun->backend = be_lun->be; 4551 be_lun->ctl_lun = lun; 4552 be_lun->lun_id = lun_number; 4553 atomic_add_int(&be_lun->be->num_luns, 1); 4554 if (be_lun->flags & CTL_LUN_FLAG_EJECTED) 4555 lun->flags |= CTL_LUN_EJECTED; 4556 if (be_lun->flags & CTL_LUN_FLAG_NO_MEDIA) 4557 lun->flags |= CTL_LUN_NO_MEDIA; 4558 if (be_lun->flags & CTL_LUN_FLAG_STOPPED) 4559 lun->flags |= CTL_LUN_STOPPED; 4560 4561 if (be_lun->flags & CTL_LUN_FLAG_PRIMARY) 4562 lun->flags |= CTL_LUN_PRIMARY_SC; 4563 4564 value = ctl_get_opt(&be_lun->options, "removable"); 4565 if (value != NULL) { 4566 if (strcmp(value, "on") == 0) 4567 lun->flags |= CTL_LUN_REMOVABLE; 4568 } else if (be_lun->lun_type == T_CDROM) 4569 lun->flags |= CTL_LUN_REMOVABLE; 4570 4571 lun->ctl_softc = ctl_softc; 4572#ifdef CTL_TIME_IO 4573 lun->last_busy = getsbinuptime(); 4574#endif 4575 TAILQ_INIT(&lun->ooa_queue); 4576 TAILQ_INIT(&lun->blocked_queue); 4577 STAILQ_INIT(&lun->error_list); 4578 lun->ie_reported = 1; 4579 callout_init_mtx(&lun->ie_callout, &lun->lun_lock, 0); 4580 ctl_tpc_lun_init(lun); 4581 4582 /* 4583 * Initialize the mode and log page index. 4584 */ 4585 ctl_init_page_index(lun); 4586 ctl_init_log_page_index(lun); 4587 4588 /* 4589 * Now, before we insert this lun on the lun list, set the lun 4590 * inventory changed UA for all other luns. 4591 */ 4592 STAILQ_FOREACH(nlun, &ctl_softc->lun_list, links) { 4593 mtx_lock(&nlun->lun_lock); 4594 ctl_est_ua_all(nlun, -1, CTL_UA_LUN_CHANGE); 4595 mtx_unlock(&nlun->lun_lock); 4596 } 4597 4598 STAILQ_INSERT_TAIL(&ctl_softc->lun_list, lun, links); 4599 4600 ctl_softc->ctl_luns[lun_number] = lun; 4601 4602 ctl_softc->num_luns++; 4603 4604 /* Setup statistics gathering */ 4605 lun->stats.device_type = be_lun->lun_type; 4606 lun->stats.lun_number = lun_number; 4607 lun->stats.blocksize = be_lun->blocksize; 4608 if (be_lun->blocksize == 0) 4609 lun->stats.flags = CTL_LUN_STATS_NO_BLOCKSIZE; 4610 for (i = 0;i < CTL_MAX_PORTS;i++) 4611 lun->stats.ports[i].targ_port = i; 4612 4613 mtx_unlock(&ctl_softc->ctl_lock); 4614 4615 lun->be_lun->lun_config_status(lun->be_lun->be_lun, CTL_LUN_CONFIG_OK); 4616 return (0); 4617} 4618 4619/* 4620 * Delete a LUN. 4621 * Assumptions: 4622 * - LUN has already been marked invalid and any pending I/O has been taken 4623 * care of. 4624 */ 4625static int 4626ctl_free_lun(struct ctl_lun *lun) 4627{ 4628 struct ctl_softc *softc; 4629 struct ctl_lun *nlun; 4630 int i; 4631 4632 softc = lun->ctl_softc; 4633 4634 mtx_assert(&softc->ctl_lock, MA_OWNED); 4635 4636 STAILQ_REMOVE(&softc->lun_list, lun, ctl_lun, links); 4637 4638 ctl_clear_mask(softc->ctl_lun_mask, lun->lun); 4639 4640 softc->ctl_luns[lun->lun] = NULL; 4641 4642 if (!TAILQ_EMPTY(&lun->ooa_queue)) 4643 panic("Freeing a LUN %p with outstanding I/O!!\n", lun); 4644 4645 softc->num_luns--; 4646 4647 /* 4648 * Tell the backend to free resources, if this LUN has a backend. 4649 */ 4650 atomic_subtract_int(&lun->be_lun->be->num_luns, 1); 4651 lun->be_lun->lun_shutdown(lun->be_lun->be_lun); 4652 4653 lun->ie_reportcnt = UINT32_MAX; 4654 callout_drain(&lun->ie_callout); 4655 4656 ctl_tpc_lun_shutdown(lun); 4657 mtx_destroy(&lun->lun_lock); 4658 free(lun->lun_devid, M_CTL); 4659 for (i = 0; i < CTL_MAX_PORTS; i++) 4660 free(lun->pending_ua[i], M_CTL); 4661 for (i = 0; i < CTL_MAX_PORTS; i++) 4662 free(lun->pr_keys[i], M_CTL); 4663 free(lun->write_buffer, M_CTL); 4664 if (lun->flags & CTL_LUN_MALLOCED) 4665 free(lun, M_CTL); 4666 4667 STAILQ_FOREACH(nlun, &softc->lun_list, links) { 4668 mtx_lock(&nlun->lun_lock); 4669 ctl_est_ua_all(nlun, -1, CTL_UA_LUN_CHANGE); 4670 mtx_unlock(&nlun->lun_lock); 4671 } 4672 4673 return (0); 4674} 4675 4676static void 4677ctl_create_lun(struct ctl_be_lun *be_lun) 4678{ 4679 4680 /* 4681 * ctl_alloc_lun() should handle all potential failure cases. 4682 */ 4683 ctl_alloc_lun(control_softc, NULL, be_lun); 4684} 4685 4686int 4687ctl_add_lun(struct ctl_be_lun *be_lun) 4688{ 4689 struct ctl_softc *softc = control_softc; 4690 4691 mtx_lock(&softc->ctl_lock); 4692 STAILQ_INSERT_TAIL(&softc->pending_lun_queue, be_lun, links); 4693 mtx_unlock(&softc->ctl_lock); 4694 wakeup(&softc->pending_lun_queue); 4695 4696 return (0); 4697} 4698 4699int 4700ctl_enable_lun(struct ctl_be_lun *be_lun) 4701{ 4702 struct ctl_softc *softc; 4703 struct ctl_port *port, *nport; 4704 struct ctl_lun *lun; 4705 int retval; 4706 4707 lun = (struct ctl_lun *)be_lun->ctl_lun; 4708 softc = lun->ctl_softc; 4709 4710 mtx_lock(&softc->ctl_lock); 4711 mtx_lock(&lun->lun_lock); 4712 if ((lun->flags & CTL_LUN_DISABLED) == 0) { 4713 /* 4714 * eh? Why did we get called if the LUN is already 4715 * enabled? 4716 */ 4717 mtx_unlock(&lun->lun_lock); 4718 mtx_unlock(&softc->ctl_lock); 4719 return (0); 4720 } 4721 lun->flags &= ~CTL_LUN_DISABLED; 4722 mtx_unlock(&lun->lun_lock); 4723 4724 STAILQ_FOREACH_SAFE(port, &softc->port_list, links, nport) { 4725 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0 || 4726 port->lun_map != NULL || port->lun_enable == NULL) 4727 continue; 4728 4729 /* 4730 * Drop the lock while we call the FETD's enable routine. 4731 * This can lead to a callback into CTL (at least in the 4732 * case of the internal initiator frontend. 4733 */ 4734 mtx_unlock(&softc->ctl_lock); 4735 retval = port->lun_enable(port->targ_lun_arg, lun->lun); 4736 mtx_lock(&softc->ctl_lock); 4737 if (retval != 0) { 4738 printf("%s: FETD %s port %d returned error " 4739 "%d for lun_enable on lun %jd\n", 4740 __func__, port->port_name, port->targ_port, 4741 retval, (intmax_t)lun->lun); 4742 } 4743 } 4744 4745 mtx_unlock(&softc->ctl_lock); 4746 ctl_isc_announce_lun(lun); 4747 4748 return (0); 4749} 4750 4751int 4752ctl_disable_lun(struct ctl_be_lun *be_lun) 4753{ 4754 struct ctl_softc *softc; 4755 struct ctl_port *port; 4756 struct ctl_lun *lun; 4757 int retval; 4758 4759 lun = (struct ctl_lun *)be_lun->ctl_lun; 4760 softc = lun->ctl_softc; 4761 4762 mtx_lock(&softc->ctl_lock); 4763 mtx_lock(&lun->lun_lock); 4764 if (lun->flags & CTL_LUN_DISABLED) { 4765 mtx_unlock(&lun->lun_lock); 4766 mtx_unlock(&softc->ctl_lock); 4767 return (0); 4768 } 4769 lun->flags |= CTL_LUN_DISABLED; 4770 mtx_unlock(&lun->lun_lock); 4771 4772 STAILQ_FOREACH(port, &softc->port_list, links) { 4773 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0 || 4774 port->lun_map != NULL || port->lun_disable == NULL) 4775 continue; 4776 4777 /* 4778 * Drop the lock before we call the frontend's disable 4779 * routine, to avoid lock order reversals. 4780 * 4781 * XXX KDM what happens if the frontend list changes while 4782 * we're traversing it? It's unlikely, but should be handled. 4783 */ 4784 mtx_unlock(&softc->ctl_lock); 4785 retval = port->lun_disable(port->targ_lun_arg, lun->lun); 4786 mtx_lock(&softc->ctl_lock); 4787 if (retval != 0) { 4788 printf("%s: FETD %s port %d returned error " 4789 "%d for lun_disable on lun %jd\n", 4790 __func__, port->port_name, port->targ_port, 4791 retval, (intmax_t)lun->lun); 4792 } 4793 } 4794 4795 mtx_unlock(&softc->ctl_lock); 4796 ctl_isc_announce_lun(lun); 4797 4798 return (0); 4799} 4800 4801int 4802ctl_start_lun(struct ctl_be_lun *be_lun) 4803{ 4804 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 4805 4806 mtx_lock(&lun->lun_lock); 4807 lun->flags &= ~CTL_LUN_STOPPED; 4808 mtx_unlock(&lun->lun_lock); 4809 return (0); 4810} 4811 4812int 4813ctl_stop_lun(struct ctl_be_lun *be_lun) 4814{ 4815 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 4816 4817 mtx_lock(&lun->lun_lock); 4818 lun->flags |= CTL_LUN_STOPPED; 4819 mtx_unlock(&lun->lun_lock); 4820 return (0); 4821} 4822 4823int 4824ctl_lun_no_media(struct ctl_be_lun *be_lun) 4825{ 4826 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 4827 4828 mtx_lock(&lun->lun_lock); 4829 lun->flags |= CTL_LUN_NO_MEDIA; 4830 mtx_unlock(&lun->lun_lock); 4831 return (0); 4832} 4833 4834int 4835ctl_lun_has_media(struct ctl_be_lun *be_lun) 4836{ 4837 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 4838 union ctl_ha_msg msg; 4839 4840 mtx_lock(&lun->lun_lock); 4841 lun->flags &= ~(CTL_LUN_NO_MEDIA | CTL_LUN_EJECTED); 4842 if (lun->flags & CTL_LUN_REMOVABLE) 4843 ctl_est_ua_all(lun, -1, CTL_UA_MEDIUM_CHANGE); 4844 mtx_unlock(&lun->lun_lock); 4845 if ((lun->flags & CTL_LUN_REMOVABLE) && 4846 lun->ctl_softc->ha_mode == CTL_HA_MODE_XFER) { 4847 bzero(&msg.ua, sizeof(msg.ua)); 4848 msg.hdr.msg_type = CTL_MSG_UA; 4849 msg.hdr.nexus.initid = -1; 4850 msg.hdr.nexus.targ_port = -1; 4851 msg.hdr.nexus.targ_lun = lun->lun; 4852 msg.hdr.nexus.targ_mapped_lun = lun->lun; 4853 msg.ua.ua_all = 1; 4854 msg.ua.ua_set = 1; 4855 msg.ua.ua_type = CTL_UA_MEDIUM_CHANGE; 4856 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, sizeof(msg.ua), 4857 M_WAITOK); 4858 } 4859 return (0); 4860} 4861 4862int 4863ctl_lun_ejected(struct ctl_be_lun *be_lun) 4864{ 4865 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 4866 4867 mtx_lock(&lun->lun_lock); 4868 lun->flags |= CTL_LUN_EJECTED; 4869 mtx_unlock(&lun->lun_lock); 4870 return (0); 4871} 4872 4873int 4874ctl_lun_primary(struct ctl_be_lun *be_lun) 4875{ 4876 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 4877 4878 mtx_lock(&lun->lun_lock); 4879 lun->flags |= CTL_LUN_PRIMARY_SC; 4880 ctl_est_ua_all(lun, -1, CTL_UA_ASYM_ACC_CHANGE); 4881 mtx_unlock(&lun->lun_lock); 4882 ctl_isc_announce_lun(lun); 4883 return (0); 4884} 4885 4886int 4887ctl_lun_secondary(struct ctl_be_lun *be_lun) 4888{ 4889 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 4890 4891 mtx_lock(&lun->lun_lock); 4892 lun->flags &= ~CTL_LUN_PRIMARY_SC; 4893 ctl_est_ua_all(lun, -1, CTL_UA_ASYM_ACC_CHANGE); 4894 mtx_unlock(&lun->lun_lock); 4895 ctl_isc_announce_lun(lun); 4896 return (0); 4897} 4898 4899int 4900ctl_invalidate_lun(struct ctl_be_lun *be_lun) 4901{ 4902 struct ctl_softc *softc; 4903 struct ctl_lun *lun; 4904 4905 lun = (struct ctl_lun *)be_lun->ctl_lun; 4906 softc = lun->ctl_softc; 4907 4908 mtx_lock(&lun->lun_lock); 4909 4910 /* 4911 * The LUN needs to be disabled before it can be marked invalid. 4912 */ 4913 if ((lun->flags & CTL_LUN_DISABLED) == 0) { 4914 mtx_unlock(&lun->lun_lock); 4915 return (-1); 4916 } 4917 /* 4918 * Mark the LUN invalid. 4919 */ 4920 lun->flags |= CTL_LUN_INVALID; 4921 4922 /* 4923 * If there is nothing in the OOA queue, go ahead and free the LUN. 4924 * If we have something in the OOA queue, we'll free it when the 4925 * last I/O completes. 4926 */ 4927 if (TAILQ_EMPTY(&lun->ooa_queue)) { 4928 mtx_unlock(&lun->lun_lock); 4929 mtx_lock(&softc->ctl_lock); 4930 ctl_free_lun(lun); 4931 mtx_unlock(&softc->ctl_lock); 4932 } else 4933 mtx_unlock(&lun->lun_lock); 4934 4935 return (0); 4936} 4937 4938void 4939ctl_lun_capacity_changed(struct ctl_be_lun *be_lun) 4940{ 4941 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 4942 union ctl_ha_msg msg; 4943 4944 mtx_lock(&lun->lun_lock); 4945 ctl_est_ua_all(lun, -1, CTL_UA_CAPACITY_CHANGE); 4946 mtx_unlock(&lun->lun_lock); 4947 if (lun->ctl_softc->ha_mode == CTL_HA_MODE_XFER) { 4948 /* Send msg to other side. */ 4949 bzero(&msg.ua, sizeof(msg.ua)); 4950 msg.hdr.msg_type = CTL_MSG_UA; 4951 msg.hdr.nexus.initid = -1; 4952 msg.hdr.nexus.targ_port = -1; 4953 msg.hdr.nexus.targ_lun = lun->lun; 4954 msg.hdr.nexus.targ_mapped_lun = lun->lun; 4955 msg.ua.ua_all = 1; 4956 msg.ua.ua_set = 1; 4957 msg.ua.ua_type = CTL_UA_CAPACITY_CHANGE; 4958 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, sizeof(msg.ua), 4959 M_WAITOK); 4960 } 4961} 4962 4963/* 4964 * Backend "memory move is complete" callback for requests that never 4965 * make it down to say RAIDCore's configuration code. 4966 */ 4967int 4968ctl_config_move_done(union ctl_io *io) 4969{ 4970 int retval; 4971 4972 CTL_DEBUG_PRINT(("ctl_config_move_done\n")); 4973 KASSERT(io->io_hdr.io_type == CTL_IO_SCSI, 4974 ("Config I/O type isn't CTL_IO_SCSI (%d)!", io->io_hdr.io_type)); 4975 4976 if ((io->io_hdr.port_status != 0) && 4977 ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE || 4978 (io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS)) { 4979 /* 4980 * For hardware error sense keys, the sense key 4981 * specific value is defined to be a retry count, 4982 * but we use it to pass back an internal FETD 4983 * error code. XXX KDM Hopefully the FETD is only 4984 * using 16 bits for an error code, since that's 4985 * all the space we have in the sks field. 4986 */ 4987 ctl_set_internal_failure(&io->scsiio, 4988 /*sks_valid*/ 1, 4989 /*retry_count*/ 4990 io->io_hdr.port_status); 4991 } 4992 4993 if (ctl_debug & CTL_DEBUG_CDB_DATA) 4994 ctl_data_print(io); 4995 if (((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_IN) || 4996 ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE && 4997 (io->io_hdr.status & CTL_STATUS_MASK) != CTL_SUCCESS) || 4998 ((io->io_hdr.flags & CTL_FLAG_ABORT) != 0)) { 4999 /* 5000 * XXX KDM just assuming a single pointer here, and not a 5001 * S/G list. If we start using S/G lists for config data, 5002 * we'll need to know how to clean them up here as well. 5003 */ 5004 if (io->io_hdr.flags & CTL_FLAG_ALLOCATED) 5005 free(io->scsiio.kern_data_ptr, M_CTL); 5006 ctl_done(io); 5007 retval = CTL_RETVAL_COMPLETE; 5008 } else { 5009 /* 5010 * XXX KDM now we need to continue data movement. Some 5011 * options: 5012 * - call ctl_scsiio() again? We don't do this for data 5013 * writes, because for those at least we know ahead of 5014 * time where the write will go and how long it is. For 5015 * config writes, though, that information is largely 5016 * contained within the write itself, thus we need to 5017 * parse out the data again. 5018 * 5019 * - Call some other function once the data is in? 5020 */ 5021 5022 /* 5023 * XXX KDM call ctl_scsiio() again for now, and check flag 5024 * bits to see whether we're allocated or not. 5025 */ 5026 retval = ctl_scsiio(&io->scsiio); 5027 } 5028 return (retval); 5029} 5030 5031/* 5032 * This gets called by a backend driver when it is done with a 5033 * data_submit method. 5034 */ 5035void 5036ctl_data_submit_done(union ctl_io *io) 5037{ 5038 /* 5039 * If the IO_CONT flag is set, we need to call the supplied 5040 * function to continue processing the I/O, instead of completing 5041 * the I/O just yet. 5042 * 5043 * If there is an error, though, we don't want to keep processing. 5044 * Instead, just send status back to the initiator. 5045 */ 5046 if ((io->io_hdr.flags & CTL_FLAG_IO_CONT) && 5047 (io->io_hdr.flags & CTL_FLAG_ABORT) == 0 && 5048 ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE || 5049 (io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS)) { 5050 io->scsiio.io_cont(io); 5051 return; 5052 } 5053 ctl_done(io); 5054} 5055 5056/* 5057 * This gets called by a backend driver when it is done with a 5058 * configuration write. 5059 */ 5060void 5061ctl_config_write_done(union ctl_io *io) 5062{ 5063 uint8_t *buf; 5064 5065 /* 5066 * If the IO_CONT flag is set, we need to call the supplied 5067 * function to continue processing the I/O, instead of completing 5068 * the I/O just yet. 5069 * 5070 * If there is an error, though, we don't want to keep processing. 5071 * Instead, just send status back to the initiator. 5072 */ 5073 if ((io->io_hdr.flags & CTL_FLAG_IO_CONT) && 5074 (io->io_hdr.flags & CTL_FLAG_ABORT) == 0 && 5075 ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE || 5076 (io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS)) { 5077 io->scsiio.io_cont(io); 5078 return; 5079 } 5080 /* 5081 * Since a configuration write can be done for commands that actually 5082 * have data allocated, like write buffer, and commands that have 5083 * no data, like start/stop unit, we need to check here. 5084 */ 5085 if (io->io_hdr.flags & CTL_FLAG_ALLOCATED) 5086 buf = io->scsiio.kern_data_ptr; 5087 else 5088 buf = NULL; 5089 ctl_done(io); 5090 if (buf) 5091 free(buf, M_CTL); 5092} 5093 5094void 5095ctl_config_read_done(union ctl_io *io) 5096{ 5097 uint8_t *buf; 5098 5099 /* 5100 * If there is some error -- we are done, skip data transfer. 5101 */ 5102 if ((io->io_hdr.flags & CTL_FLAG_ABORT) != 0 || 5103 ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE && 5104 (io->io_hdr.status & CTL_STATUS_MASK) != CTL_SUCCESS)) { 5105 if (io->io_hdr.flags & CTL_FLAG_ALLOCATED) 5106 buf = io->scsiio.kern_data_ptr; 5107 else 5108 buf = NULL; 5109 ctl_done(io); 5110 if (buf) 5111 free(buf, M_CTL); 5112 return; 5113 } 5114 5115 /* 5116 * If the IO_CONT flag is set, we need to call the supplied 5117 * function to continue processing the I/O, instead of completing 5118 * the I/O just yet. 5119 */ 5120 if (io->io_hdr.flags & CTL_FLAG_IO_CONT) { 5121 io->scsiio.io_cont(io); 5122 return; 5123 } 5124 5125 ctl_datamove(io); 5126} 5127 5128/* 5129 * SCSI release command. 5130 */ 5131int 5132ctl_scsi_release(struct ctl_scsiio *ctsio) 5133{ 5134 struct ctl_lun *lun; 5135 uint32_t residx; 5136 5137 CTL_DEBUG_PRINT(("ctl_scsi_release\n")); 5138 5139 residx = ctl_get_initindex(&ctsio->io_hdr.nexus); 5140 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5141 5142 /* 5143 * XXX KDM right now, we only support LUN reservation. We don't 5144 * support 3rd party reservations, or extent reservations, which 5145 * might actually need the parameter list. If we've gotten this 5146 * far, we've got a LUN reservation. Anything else got kicked out 5147 * above. So, according to SPC, ignore the length. 5148 */ 5149 5150 mtx_lock(&lun->lun_lock); 5151 5152 /* 5153 * According to SPC, it is not an error for an intiator to attempt 5154 * to release a reservation on a LUN that isn't reserved, or that 5155 * is reserved by another initiator. The reservation can only be 5156 * released, though, by the initiator who made it or by one of 5157 * several reset type events. 5158 */ 5159 if ((lun->flags & CTL_LUN_RESERVED) && (lun->res_idx == residx)) 5160 lun->flags &= ~CTL_LUN_RESERVED; 5161 5162 mtx_unlock(&lun->lun_lock); 5163 5164 ctl_set_success(ctsio); 5165 ctl_done((union ctl_io *)ctsio); 5166 return (CTL_RETVAL_COMPLETE); 5167} 5168 5169int 5170ctl_scsi_reserve(struct ctl_scsiio *ctsio) 5171{ 5172 struct ctl_lun *lun; 5173 uint32_t residx; 5174 5175 CTL_DEBUG_PRINT(("ctl_reserve\n")); 5176 5177 residx = ctl_get_initindex(&ctsio->io_hdr.nexus); 5178 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5179 5180 /* 5181 * XXX KDM right now, we only support LUN reservation. We don't 5182 * support 3rd party reservations, or extent reservations, which 5183 * might actually need the parameter list. If we've gotten this 5184 * far, we've got a LUN reservation. Anything else got kicked out 5185 * above. So, according to SPC, ignore the length. 5186 */ 5187 5188 mtx_lock(&lun->lun_lock); 5189 if ((lun->flags & CTL_LUN_RESERVED) && (lun->res_idx != residx)) { 5190 ctl_set_reservation_conflict(ctsio); 5191 goto bailout; 5192 } 5193 5194 /* SPC-3 exceptions to SPC-2 RESERVE and RELEASE behavior. */ 5195 if (lun->flags & CTL_LUN_PR_RESERVED) { 5196 ctl_set_success(ctsio); 5197 goto bailout; 5198 } 5199 5200 lun->flags |= CTL_LUN_RESERVED; 5201 lun->res_idx = residx; 5202 ctl_set_success(ctsio); 5203 5204bailout: 5205 mtx_unlock(&lun->lun_lock); 5206 ctl_done((union ctl_io *)ctsio); 5207 return (CTL_RETVAL_COMPLETE); 5208} 5209 5210int 5211ctl_start_stop(struct ctl_scsiio *ctsio) 5212{ 5213 struct scsi_start_stop_unit *cdb; 5214 struct ctl_lun *lun; 5215 int retval; 5216 5217 CTL_DEBUG_PRINT(("ctl_start_stop\n")); 5218 5219 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5220 cdb = (struct scsi_start_stop_unit *)ctsio->cdb; 5221 5222 if ((cdb->how & SSS_PC_MASK) == 0) { 5223 if ((lun->flags & CTL_LUN_PR_RESERVED) && 5224 (cdb->how & SSS_START) == 0) { 5225 uint32_t residx; 5226 5227 residx = ctl_get_initindex(&ctsio->io_hdr.nexus); 5228 if (ctl_get_prkey(lun, residx) == 0 || 5229 (lun->pr_res_idx != residx && lun->pr_res_type < 4)) { 5230 5231 ctl_set_reservation_conflict(ctsio); 5232 ctl_done((union ctl_io *)ctsio); 5233 return (CTL_RETVAL_COMPLETE); 5234 } 5235 } 5236 5237 if ((cdb->how & SSS_LOEJ) && 5238 (lun->flags & CTL_LUN_REMOVABLE) == 0) { 5239 ctl_set_invalid_field(ctsio, 5240 /*sks_valid*/ 1, 5241 /*command*/ 1, 5242 /*field*/ 4, 5243 /*bit_valid*/ 1, 5244 /*bit*/ 1); 5245 ctl_done((union ctl_io *)ctsio); 5246 return (CTL_RETVAL_COMPLETE); 5247 } 5248 5249 if ((cdb->how & SSS_START) == 0 && (cdb->how & SSS_LOEJ) && 5250 lun->prevent_count > 0) { 5251 /* "Medium removal prevented" */ 5252 ctl_set_sense(ctsio, /*current_error*/ 1, 5253 /*sense_key*/(lun->flags & CTL_LUN_NO_MEDIA) ? 5254 SSD_KEY_NOT_READY : SSD_KEY_ILLEGAL_REQUEST, 5255 /*asc*/ 0x53, /*ascq*/ 0x02, SSD_ELEM_NONE); 5256 ctl_done((union ctl_io *)ctsio); 5257 return (CTL_RETVAL_COMPLETE); 5258 } 5259 } 5260 5261 retval = lun->backend->config_write((union ctl_io *)ctsio); 5262 return (retval); 5263} 5264 5265int 5266ctl_prevent_allow(struct ctl_scsiio *ctsio) 5267{ 5268 struct ctl_lun *lun; 5269 struct scsi_prevent *cdb; 5270 int retval; 5271 uint32_t initidx; 5272 5273 CTL_DEBUG_PRINT(("ctl_prevent_allow\n")); 5274 5275 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5276 cdb = (struct scsi_prevent *)ctsio->cdb; 5277 5278 if ((lun->flags & CTL_LUN_REMOVABLE) == 0) { 5279 ctl_set_invalid_opcode(ctsio); 5280 ctl_done((union ctl_io *)ctsio); 5281 return (CTL_RETVAL_COMPLETE); 5282 } 5283 5284 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 5285 mtx_lock(&lun->lun_lock); 5286 if ((cdb->how & PR_PREVENT) && 5287 ctl_is_set(lun->prevent, initidx) == 0) { 5288 ctl_set_mask(lun->prevent, initidx); 5289 lun->prevent_count++; 5290 } else if ((cdb->how & PR_PREVENT) == 0 && 5291 ctl_is_set(lun->prevent, initidx)) { 5292 ctl_clear_mask(lun->prevent, initidx); 5293 lun->prevent_count--; 5294 } 5295 mtx_unlock(&lun->lun_lock); 5296 retval = lun->backend->config_write((union ctl_io *)ctsio); 5297 return (retval); 5298} 5299 5300/* 5301 * We support the SYNCHRONIZE CACHE command (10 and 16 byte versions), but 5302 * we don't really do anything with the LBA and length fields if the user 5303 * passes them in. Instead we'll just flush out the cache for the entire 5304 * LUN. 5305 */ 5306int 5307ctl_sync_cache(struct ctl_scsiio *ctsio) 5308{ 5309 struct ctl_lun *lun; 5310 struct ctl_softc *softc; 5311 struct ctl_lba_len_flags *lbalen; 5312 uint64_t starting_lba; 5313 uint32_t block_count; 5314 int retval; 5315 uint8_t byte2; 5316 5317 CTL_DEBUG_PRINT(("ctl_sync_cache\n")); 5318 5319 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5320 softc = lun->ctl_softc; 5321 retval = 0; 5322 5323 switch (ctsio->cdb[0]) { 5324 case SYNCHRONIZE_CACHE: { 5325 struct scsi_sync_cache *cdb; 5326 cdb = (struct scsi_sync_cache *)ctsio->cdb; 5327 5328 starting_lba = scsi_4btoul(cdb->begin_lba); 5329 block_count = scsi_2btoul(cdb->lb_count); 5330 byte2 = cdb->byte2; 5331 break; 5332 } 5333 case SYNCHRONIZE_CACHE_16: { 5334 struct scsi_sync_cache_16 *cdb; 5335 cdb = (struct scsi_sync_cache_16 *)ctsio->cdb; 5336 5337 starting_lba = scsi_8btou64(cdb->begin_lba); 5338 block_count = scsi_4btoul(cdb->lb_count); 5339 byte2 = cdb->byte2; 5340 break; 5341 } 5342 default: 5343 ctl_set_invalid_opcode(ctsio); 5344 ctl_done((union ctl_io *)ctsio); 5345 goto bailout; 5346 break; /* NOTREACHED */ 5347 } 5348 5349 /* 5350 * We check the LBA and length, but don't do anything with them. 5351 * A SYNCHRONIZE CACHE will cause the entire cache for this lun to 5352 * get flushed. This check will just help satisfy anyone who wants 5353 * to see an error for an out of range LBA. 5354 */ 5355 if ((starting_lba + block_count) > (lun->be_lun->maxlba + 1)) { 5356 ctl_set_lba_out_of_range(ctsio, 5357 MAX(starting_lba, lun->be_lun->maxlba + 1)); 5358 ctl_done((union ctl_io *)ctsio); 5359 goto bailout; 5360 } 5361 5362 lbalen = (struct ctl_lba_len_flags *)&ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 5363 lbalen->lba = starting_lba; 5364 lbalen->len = block_count; 5365 lbalen->flags = byte2; 5366 retval = lun->backend->config_write((union ctl_io *)ctsio); 5367 5368bailout: 5369 return (retval); 5370} 5371 5372int 5373ctl_format(struct ctl_scsiio *ctsio) 5374{ 5375 struct scsi_format *cdb; 5376 struct ctl_lun *lun; 5377 int length, defect_list_len; 5378 5379 CTL_DEBUG_PRINT(("ctl_format\n")); 5380 5381 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5382 5383 cdb = (struct scsi_format *)ctsio->cdb; 5384 5385 length = 0; 5386 if (cdb->byte2 & SF_FMTDATA) { 5387 if (cdb->byte2 & SF_LONGLIST) 5388 length = sizeof(struct scsi_format_header_long); 5389 else 5390 length = sizeof(struct scsi_format_header_short); 5391 } 5392 5393 if (((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) 5394 && (length > 0)) { 5395 ctsio->kern_data_ptr = malloc(length, M_CTL, M_WAITOK); 5396 ctsio->kern_data_len = length; 5397 ctsio->kern_total_len = length; 5398 ctsio->kern_data_resid = 0; 5399 ctsio->kern_rel_offset = 0; 5400 ctsio->kern_sg_entries = 0; 5401 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5402 ctsio->be_move_done = ctl_config_move_done; 5403 ctl_datamove((union ctl_io *)ctsio); 5404 5405 return (CTL_RETVAL_COMPLETE); 5406 } 5407 5408 defect_list_len = 0; 5409 5410 if (cdb->byte2 & SF_FMTDATA) { 5411 if (cdb->byte2 & SF_LONGLIST) { 5412 struct scsi_format_header_long *header; 5413 5414 header = (struct scsi_format_header_long *) 5415 ctsio->kern_data_ptr; 5416 5417 defect_list_len = scsi_4btoul(header->defect_list_len); 5418 if (defect_list_len != 0) { 5419 ctl_set_invalid_field(ctsio, 5420 /*sks_valid*/ 1, 5421 /*command*/ 0, 5422 /*field*/ 2, 5423 /*bit_valid*/ 0, 5424 /*bit*/ 0); 5425 goto bailout; 5426 } 5427 } else { 5428 struct scsi_format_header_short *header; 5429 5430 header = (struct scsi_format_header_short *) 5431 ctsio->kern_data_ptr; 5432 5433 defect_list_len = scsi_2btoul(header->defect_list_len); 5434 if (defect_list_len != 0) { 5435 ctl_set_invalid_field(ctsio, 5436 /*sks_valid*/ 1, 5437 /*command*/ 0, 5438 /*field*/ 2, 5439 /*bit_valid*/ 0, 5440 /*bit*/ 0); 5441 goto bailout; 5442 } 5443 } 5444 } 5445 5446 ctl_set_success(ctsio); 5447bailout: 5448 5449 if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) { 5450 free(ctsio->kern_data_ptr, M_CTL); 5451 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED; 5452 } 5453 5454 ctl_done((union ctl_io *)ctsio); 5455 return (CTL_RETVAL_COMPLETE); 5456} 5457 5458int 5459ctl_read_buffer(struct ctl_scsiio *ctsio) 5460{ 5461 struct ctl_lun *lun; 5462 uint64_t buffer_offset; 5463 uint32_t len; 5464 uint8_t byte2; 5465 static uint8_t descr[4]; 5466 static uint8_t echo_descr[4] = { 0 }; 5467 5468 CTL_DEBUG_PRINT(("ctl_read_buffer\n")); 5469 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5470 switch (ctsio->cdb[0]) { 5471 case READ_BUFFER: { 5472 struct scsi_read_buffer *cdb; 5473 5474 cdb = (struct scsi_read_buffer *)ctsio->cdb; 5475 buffer_offset = scsi_3btoul(cdb->offset); 5476 len = scsi_3btoul(cdb->length); 5477 byte2 = cdb->byte2; 5478 break; 5479 } 5480 case READ_BUFFER_16: { 5481 struct scsi_read_buffer_16 *cdb; 5482 5483 cdb = (struct scsi_read_buffer_16 *)ctsio->cdb; 5484 buffer_offset = scsi_8btou64(cdb->offset); 5485 len = scsi_4btoul(cdb->length); 5486 byte2 = cdb->byte2; 5487 break; 5488 } 5489 default: /* This shouldn't happen. */ 5490 ctl_set_invalid_opcode(ctsio); 5491 ctl_done((union ctl_io *)ctsio); 5492 return (CTL_RETVAL_COMPLETE); 5493 } 5494 5495 if ((byte2 & RWB_MODE) != RWB_MODE_DATA && 5496 (byte2 & RWB_MODE) != RWB_MODE_ECHO_DESCR && 5497 (byte2 & RWB_MODE) != RWB_MODE_DESCR) { 5498 ctl_set_invalid_field(ctsio, 5499 /*sks_valid*/ 1, 5500 /*command*/ 1, 5501 /*field*/ 1, 5502 /*bit_valid*/ 1, 5503 /*bit*/ 4); 5504 ctl_done((union ctl_io *)ctsio); 5505 return (CTL_RETVAL_COMPLETE); 5506 } 5507 5508 if (buffer_offset > CTL_WRITE_BUFFER_SIZE || 5509 buffer_offset + len > CTL_WRITE_BUFFER_SIZE) { 5510 ctl_set_invalid_field(ctsio, 5511 /*sks_valid*/ 1, 5512 /*command*/ 1, 5513 /*field*/ 6, 5514 /*bit_valid*/ 0, 5515 /*bit*/ 0); 5516 ctl_done((union ctl_io *)ctsio); 5517 return (CTL_RETVAL_COMPLETE); 5518 } 5519 5520 if ((byte2 & RWB_MODE) == RWB_MODE_DESCR) { 5521 descr[0] = 0; 5522 scsi_ulto3b(CTL_WRITE_BUFFER_SIZE, &descr[1]); 5523 ctsio->kern_data_ptr = descr; 5524 len = min(len, sizeof(descr)); 5525 } else if ((byte2 & RWB_MODE) == RWB_MODE_ECHO_DESCR) { 5526 ctsio->kern_data_ptr = echo_descr; 5527 len = min(len, sizeof(echo_descr)); 5528 } else { 5529 if (lun->write_buffer == NULL) { 5530 lun->write_buffer = malloc(CTL_WRITE_BUFFER_SIZE, 5531 M_CTL, M_WAITOK); 5532 } 5533 ctsio->kern_data_ptr = lun->write_buffer + buffer_offset; 5534 } 5535 ctsio->kern_data_len = len; 5536 ctsio->kern_total_len = len; 5537 ctsio->kern_data_resid = 0; 5538 ctsio->kern_rel_offset = 0; 5539 ctsio->kern_sg_entries = 0; 5540 ctl_set_success(ctsio); 5541 ctsio->be_move_done = ctl_config_move_done; 5542 ctl_datamove((union ctl_io *)ctsio); 5543 return (CTL_RETVAL_COMPLETE); 5544} 5545 5546int 5547ctl_write_buffer(struct ctl_scsiio *ctsio) 5548{ 5549 struct scsi_write_buffer *cdb; 5550 struct ctl_lun *lun; 5551 int buffer_offset, len; 5552 5553 CTL_DEBUG_PRINT(("ctl_write_buffer\n")); 5554 5555 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5556 cdb = (struct scsi_write_buffer *)ctsio->cdb; 5557 5558 if ((cdb->byte2 & RWB_MODE) != RWB_MODE_DATA) { 5559 ctl_set_invalid_field(ctsio, 5560 /*sks_valid*/ 1, 5561 /*command*/ 1, 5562 /*field*/ 1, 5563 /*bit_valid*/ 1, 5564 /*bit*/ 4); 5565 ctl_done((union ctl_io *)ctsio); 5566 return (CTL_RETVAL_COMPLETE); 5567 } 5568 5569 len = scsi_3btoul(cdb->length); 5570 buffer_offset = scsi_3btoul(cdb->offset); 5571 5572 if (buffer_offset + len > CTL_WRITE_BUFFER_SIZE) { 5573 ctl_set_invalid_field(ctsio, 5574 /*sks_valid*/ 1, 5575 /*command*/ 1, 5576 /*field*/ 6, 5577 /*bit_valid*/ 0, 5578 /*bit*/ 0); 5579 ctl_done((union ctl_io *)ctsio); 5580 return (CTL_RETVAL_COMPLETE); 5581 } 5582 5583 /* 5584 * If we've got a kernel request that hasn't been malloced yet, 5585 * malloc it and tell the caller the data buffer is here. 5586 */ 5587 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 5588 if (lun->write_buffer == NULL) { 5589 lun->write_buffer = malloc(CTL_WRITE_BUFFER_SIZE, 5590 M_CTL, M_WAITOK); 5591 } 5592 ctsio->kern_data_ptr = lun->write_buffer + buffer_offset; 5593 ctsio->kern_data_len = len; 5594 ctsio->kern_total_len = len; 5595 ctsio->kern_data_resid = 0; 5596 ctsio->kern_rel_offset = 0; 5597 ctsio->kern_sg_entries = 0; 5598 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5599 ctsio->be_move_done = ctl_config_move_done; 5600 ctl_datamove((union ctl_io *)ctsio); 5601 5602 return (CTL_RETVAL_COMPLETE); 5603 } 5604 5605 ctl_set_success(ctsio); 5606 ctl_done((union ctl_io *)ctsio); 5607 return (CTL_RETVAL_COMPLETE); 5608} 5609 5610int 5611ctl_write_same(struct ctl_scsiio *ctsio) 5612{ 5613 struct ctl_lun *lun; 5614 struct ctl_lba_len_flags *lbalen; 5615 uint64_t lba; 5616 uint32_t num_blocks; 5617 int len, retval; 5618 uint8_t byte2; 5619 5620 CTL_DEBUG_PRINT(("ctl_write_same\n")); 5621 5622 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5623 5624 switch (ctsio->cdb[0]) { 5625 case WRITE_SAME_10: { 5626 struct scsi_write_same_10 *cdb; 5627 5628 cdb = (struct scsi_write_same_10 *)ctsio->cdb; 5629 5630 lba = scsi_4btoul(cdb->addr); 5631 num_blocks = scsi_2btoul(cdb->length); 5632 byte2 = cdb->byte2; 5633 break; 5634 } 5635 case WRITE_SAME_16: { 5636 struct scsi_write_same_16 *cdb; 5637 5638 cdb = (struct scsi_write_same_16 *)ctsio->cdb; 5639 5640 lba = scsi_8btou64(cdb->addr); 5641 num_blocks = scsi_4btoul(cdb->length); 5642 byte2 = cdb->byte2; 5643 break; 5644 } 5645 default: 5646 /* 5647 * We got a command we don't support. This shouldn't 5648 * happen, commands should be filtered out above us. 5649 */ 5650 ctl_set_invalid_opcode(ctsio); 5651 ctl_done((union ctl_io *)ctsio); 5652 5653 return (CTL_RETVAL_COMPLETE); 5654 break; /* NOTREACHED */ 5655 } 5656 5657 /* ANCHOR flag can be used only together with UNMAP */ 5658 if ((byte2 & SWS_UNMAP) == 0 && (byte2 & SWS_ANCHOR) != 0) { 5659 ctl_set_invalid_field(ctsio, /*sks_valid*/ 1, 5660 /*command*/ 1, /*field*/ 1, /*bit_valid*/ 1, /*bit*/ 0); 5661 ctl_done((union ctl_io *)ctsio); 5662 return (CTL_RETVAL_COMPLETE); 5663 } 5664 5665 /* 5666 * The first check is to make sure we're in bounds, the second 5667 * check is to catch wrap-around problems. If the lba + num blocks 5668 * is less than the lba, then we've wrapped around and the block 5669 * range is invalid anyway. 5670 */ 5671 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 5672 || ((lba + num_blocks) < lba)) { 5673 ctl_set_lba_out_of_range(ctsio, 5674 MAX(lba, lun->be_lun->maxlba + 1)); 5675 ctl_done((union ctl_io *)ctsio); 5676 return (CTL_RETVAL_COMPLETE); 5677 } 5678 5679 /* Zero number of blocks means "to the last logical block" */ 5680 if (num_blocks == 0) { 5681 if ((lun->be_lun->maxlba + 1) - lba > UINT32_MAX) { 5682 ctl_set_invalid_field(ctsio, 5683 /*sks_valid*/ 0, 5684 /*command*/ 1, 5685 /*field*/ 0, 5686 /*bit_valid*/ 0, 5687 /*bit*/ 0); 5688 ctl_done((union ctl_io *)ctsio); 5689 return (CTL_RETVAL_COMPLETE); 5690 } 5691 num_blocks = (lun->be_lun->maxlba + 1) - lba; 5692 } 5693 5694 len = lun->be_lun->blocksize; 5695 5696 /* 5697 * If we've got a kernel request that hasn't been malloced yet, 5698 * malloc it and tell the caller the data buffer is here. 5699 */ 5700 if ((byte2 & SWS_NDOB) == 0 && 5701 (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 5702 ctsio->kern_data_ptr = malloc(len, M_CTL, M_WAITOK); 5703 ctsio->kern_data_len = len; 5704 ctsio->kern_total_len = len; 5705 ctsio->kern_data_resid = 0; 5706 ctsio->kern_rel_offset = 0; 5707 ctsio->kern_sg_entries = 0; 5708 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5709 ctsio->be_move_done = ctl_config_move_done; 5710 ctl_datamove((union ctl_io *)ctsio); 5711 5712 return (CTL_RETVAL_COMPLETE); 5713 } 5714 5715 lbalen = (struct ctl_lba_len_flags *)&ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 5716 lbalen->lba = lba; 5717 lbalen->len = num_blocks; 5718 lbalen->flags = byte2; 5719 retval = lun->backend->config_write((union ctl_io *)ctsio); 5720 5721 return (retval); 5722} 5723 5724int 5725ctl_unmap(struct ctl_scsiio *ctsio) 5726{ 5727 struct ctl_lun *lun; 5728 struct scsi_unmap *cdb; 5729 struct ctl_ptr_len_flags *ptrlen; 5730 struct scsi_unmap_header *hdr; 5731 struct scsi_unmap_desc *buf, *end, *endnz, *range; 5732 uint64_t lba; 5733 uint32_t num_blocks; 5734 int len, retval; 5735 uint8_t byte2; 5736 5737 CTL_DEBUG_PRINT(("ctl_unmap\n")); 5738 5739 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5740 cdb = (struct scsi_unmap *)ctsio->cdb; 5741 5742 len = scsi_2btoul(cdb->length); 5743 byte2 = cdb->byte2; 5744 5745 /* 5746 * If we've got a kernel request that hasn't been malloced yet, 5747 * malloc it and tell the caller the data buffer is here. 5748 */ 5749 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 5750 ctsio->kern_data_ptr = malloc(len, M_CTL, M_WAITOK); 5751 ctsio->kern_data_len = len; 5752 ctsio->kern_total_len = len; 5753 ctsio->kern_data_resid = 0; 5754 ctsio->kern_rel_offset = 0; 5755 ctsio->kern_sg_entries = 0; 5756 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5757 ctsio->be_move_done = ctl_config_move_done; 5758 ctl_datamove((union ctl_io *)ctsio); 5759 5760 return (CTL_RETVAL_COMPLETE); 5761 } 5762 5763 len = ctsio->kern_total_len - ctsio->kern_data_resid; 5764 hdr = (struct scsi_unmap_header *)ctsio->kern_data_ptr; 5765 if (len < sizeof (*hdr) || 5766 len < (scsi_2btoul(hdr->length) + sizeof(hdr->length)) || 5767 len < (scsi_2btoul(hdr->desc_length) + sizeof (*hdr)) || 5768 scsi_2btoul(hdr->desc_length) % sizeof(*buf) != 0) { 5769 ctl_set_invalid_field(ctsio, 5770 /*sks_valid*/ 0, 5771 /*command*/ 0, 5772 /*field*/ 0, 5773 /*bit_valid*/ 0, 5774 /*bit*/ 0); 5775 goto done; 5776 } 5777 len = scsi_2btoul(hdr->desc_length); 5778 buf = (struct scsi_unmap_desc *)(hdr + 1); 5779 end = buf + len / sizeof(*buf); 5780 5781 endnz = buf; 5782 for (range = buf; range < end; range++) { 5783 lba = scsi_8btou64(range->lba); 5784 num_blocks = scsi_4btoul(range->length); 5785 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 5786 || ((lba + num_blocks) < lba)) { 5787 ctl_set_lba_out_of_range(ctsio, 5788 MAX(lba, lun->be_lun->maxlba + 1)); 5789 ctl_done((union ctl_io *)ctsio); 5790 return (CTL_RETVAL_COMPLETE); 5791 } 5792 if (num_blocks != 0) 5793 endnz = range + 1; 5794 } 5795 5796 /* 5797 * Block backend can not handle zero last range. 5798 * Filter it out and return if there is nothing left. 5799 */ 5800 len = (uint8_t *)endnz - (uint8_t *)buf; 5801 if (len == 0) { 5802 ctl_set_success(ctsio); 5803 goto done; 5804 } 5805 5806 mtx_lock(&lun->lun_lock); 5807 ptrlen = (struct ctl_ptr_len_flags *) 5808 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 5809 ptrlen->ptr = (void *)buf; 5810 ptrlen->len = len; 5811 ptrlen->flags = byte2; 5812 ctl_check_blocked(lun); 5813 mtx_unlock(&lun->lun_lock); 5814 5815 retval = lun->backend->config_write((union ctl_io *)ctsio); 5816 return (retval); 5817 5818done: 5819 if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) { 5820 free(ctsio->kern_data_ptr, M_CTL); 5821 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED; 5822 } 5823 ctl_done((union ctl_io *)ctsio); 5824 return (CTL_RETVAL_COMPLETE); 5825} 5826 5827int 5828ctl_default_page_handler(struct ctl_scsiio *ctsio, 5829 struct ctl_page_index *page_index, uint8_t *page_ptr) 5830{ 5831 struct ctl_lun *lun; 5832 uint8_t *current_cp, *saved_cp; 5833 int set_ua; 5834 uint32_t initidx; 5835 5836 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5837 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 5838 set_ua = 0; 5839 5840 current_cp = (page_index->page_data + (page_index->page_len * 5841 CTL_PAGE_CURRENT)); 5842 saved_cp = (page_index->page_data + (page_index->page_len * 5843 CTL_PAGE_SAVED)); 5844 5845 mtx_lock(&lun->lun_lock); 5846 if (memcmp(current_cp, page_ptr, page_index->page_len)) { 5847 memcpy(current_cp, page_ptr, page_index->page_len); 5848 memcpy(saved_cp, page_ptr, page_index->page_len); 5849 set_ua = 1; 5850 } 5851 if (set_ua != 0) 5852 ctl_est_ua_all(lun, initidx, CTL_UA_MODE_CHANGE); 5853 mtx_unlock(&lun->lun_lock); 5854 if (set_ua) { 5855 ctl_isc_announce_mode(lun, 5856 ctl_get_initindex(&ctsio->io_hdr.nexus), 5857 page_index->page_code, page_index->subpage); 5858 } 5859 return (CTL_RETVAL_COMPLETE); 5860} 5861 5862static void 5863ctl_ie_timer(void *arg) 5864{ 5865 struct ctl_lun *lun = arg; 5866 uint64_t t; 5867 5868 if (lun->ie_asc == 0) 5869 return; 5870 5871 if (lun->MODE_IE.mrie == SIEP_MRIE_UA) 5872 ctl_est_ua_all(lun, -1, CTL_UA_IE); 5873 else 5874 lun->ie_reported = 0; 5875 5876 if (lun->ie_reportcnt < scsi_4btoul(lun->MODE_IE.report_count)) { 5877 lun->ie_reportcnt++; 5878 t = scsi_4btoul(lun->MODE_IE.interval_timer); 5879 if (t == 0 || t == UINT32_MAX) 5880 t = 3000; /* 5 min */ 5881 callout_schedule(&lun->ie_callout, t * hz / 10); 5882 } 5883} 5884 5885int 5886ctl_ie_page_handler(struct ctl_scsiio *ctsio, 5887 struct ctl_page_index *page_index, uint8_t *page_ptr) 5888{ 5889 struct scsi_info_exceptions_page *pg; 5890 struct ctl_lun *lun; 5891 uint64_t t; 5892 5893 (void)ctl_default_page_handler(ctsio, page_index, page_ptr); 5894 5895 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5896 pg = (struct scsi_info_exceptions_page *)page_ptr; 5897 mtx_lock(&lun->lun_lock); 5898 if (pg->info_flags & SIEP_FLAGS_TEST) { 5899 lun->ie_asc = 0x5d; 5900 lun->ie_ascq = 0xff; 5901 if (pg->mrie == SIEP_MRIE_UA) { 5902 ctl_est_ua_all(lun, -1, CTL_UA_IE); 5903 lun->ie_reported = 1; 5904 } else { 5905 ctl_clr_ua_all(lun, -1, CTL_UA_IE); 5906 lun->ie_reported = -1; 5907 } 5908 lun->ie_reportcnt = 1; 5909 if (lun->ie_reportcnt < scsi_4btoul(pg->report_count)) { 5910 lun->ie_reportcnt++; 5911 t = scsi_4btoul(pg->interval_timer); 5912 if (t == 0 || t == UINT32_MAX) 5913 t = 3000; /* 5 min */ 5914 callout_reset(&lun->ie_callout, t * hz / 10, 5915 ctl_ie_timer, lun); 5916 } 5917 } else { 5918 lun->ie_asc = 0; 5919 lun->ie_ascq = 0; 5920 lun->ie_reported = 1; 5921 ctl_clr_ua_all(lun, -1, CTL_UA_IE); 5922 lun->ie_reportcnt = UINT32_MAX; 5923 callout_stop(&lun->ie_callout); 5924 } 5925 mtx_unlock(&lun->lun_lock); 5926 return (CTL_RETVAL_COMPLETE); 5927} 5928 5929static int 5930ctl_do_mode_select(union ctl_io *io) 5931{ 5932 struct scsi_mode_page_header *page_header; 5933 struct ctl_page_index *page_index; 5934 struct ctl_scsiio *ctsio; 5935 int page_len, page_len_offset, page_len_size; 5936 union ctl_modepage_info *modepage_info; 5937 struct ctl_lun *lun; 5938 int *len_left, *len_used; 5939 int retval, i; 5940 5941 ctsio = &io->scsiio; 5942 page_index = NULL; 5943 page_len = 0; 5944 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5945 5946 modepage_info = (union ctl_modepage_info *) 5947 ctsio->io_hdr.ctl_private[CTL_PRIV_MODEPAGE].bytes; 5948 len_left = &modepage_info->header.len_left; 5949 len_used = &modepage_info->header.len_used; 5950 5951do_next_page: 5952 5953 page_header = (struct scsi_mode_page_header *) 5954 (ctsio->kern_data_ptr + *len_used); 5955 5956 if (*len_left == 0) { 5957 free(ctsio->kern_data_ptr, M_CTL); 5958 ctl_set_success(ctsio); 5959 ctl_done((union ctl_io *)ctsio); 5960 return (CTL_RETVAL_COMPLETE); 5961 } else if (*len_left < sizeof(struct scsi_mode_page_header)) { 5962 5963 free(ctsio->kern_data_ptr, M_CTL); 5964 ctl_set_param_len_error(ctsio); 5965 ctl_done((union ctl_io *)ctsio); 5966 return (CTL_RETVAL_COMPLETE); 5967 5968 } else if ((page_header->page_code & SMPH_SPF) 5969 && (*len_left < sizeof(struct scsi_mode_page_header_sp))) { 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 5977 5978 /* 5979 * XXX KDM should we do something with the block descriptor? 5980 */ 5981 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 5982 page_index = &lun->mode_pages.index[i]; 5983 if (lun->be_lun->lun_type == T_DIRECT && 5984 (page_index->page_flags & CTL_PAGE_FLAG_DIRECT) == 0) 5985 continue; 5986 if (lun->be_lun->lun_type == T_PROCESSOR && 5987 (page_index->page_flags & CTL_PAGE_FLAG_PROC) == 0) 5988 continue; 5989 if (lun->be_lun->lun_type == T_CDROM && 5990 (page_index->page_flags & CTL_PAGE_FLAG_CDROM) == 0) 5991 continue; 5992 5993 if ((page_index->page_code & SMPH_PC_MASK) != 5994 (page_header->page_code & SMPH_PC_MASK)) 5995 continue; 5996 5997 /* 5998 * If neither page has a subpage code, then we've got a 5999 * match. 6000 */ 6001 if (((page_index->page_code & SMPH_SPF) == 0) 6002 && ((page_header->page_code & SMPH_SPF) == 0)) { 6003 page_len = page_header->page_length; 6004 break; 6005 } 6006 6007 /* 6008 * If both pages have subpages, then the subpage numbers 6009 * have to match. 6010 */ 6011 if ((page_index->page_code & SMPH_SPF) 6012 && (page_header->page_code & SMPH_SPF)) { 6013 struct scsi_mode_page_header_sp *sph; 6014 6015 sph = (struct scsi_mode_page_header_sp *)page_header; 6016 if (page_index->subpage == sph->subpage) { 6017 page_len = scsi_2btoul(sph->page_length); 6018 break; 6019 } 6020 } 6021 } 6022 6023 /* 6024 * If we couldn't find the page, or if we don't have a mode select 6025 * handler for it, send back an error to the user. 6026 */ 6027 if ((i >= CTL_NUM_MODE_PAGES) 6028 || (page_index->select_handler == NULL)) { 6029 ctl_set_invalid_field(ctsio, 6030 /*sks_valid*/ 1, 6031 /*command*/ 0, 6032 /*field*/ *len_used, 6033 /*bit_valid*/ 0, 6034 /*bit*/ 0); 6035 free(ctsio->kern_data_ptr, M_CTL); 6036 ctl_done((union ctl_io *)ctsio); 6037 return (CTL_RETVAL_COMPLETE); 6038 } 6039 6040 if (page_index->page_code & SMPH_SPF) { 6041 page_len_offset = 2; 6042 page_len_size = 2; 6043 } else { 6044 page_len_size = 1; 6045 page_len_offset = 1; 6046 } 6047 6048 /* 6049 * If the length the initiator gives us isn't the one we specify in 6050 * the mode page header, or if they didn't specify enough data in 6051 * the CDB to avoid truncating this page, kick out the request. 6052 */ 6053 if ((page_len != (page_index->page_len - page_len_offset - 6054 page_len_size)) 6055 || (*len_left < page_index->page_len)) { 6056 6057 6058 ctl_set_invalid_field(ctsio, 6059 /*sks_valid*/ 1, 6060 /*command*/ 0, 6061 /*field*/ *len_used + page_len_offset, 6062 /*bit_valid*/ 0, 6063 /*bit*/ 0); 6064 free(ctsio->kern_data_ptr, M_CTL); 6065 ctl_done((union ctl_io *)ctsio); 6066 return (CTL_RETVAL_COMPLETE); 6067 } 6068 6069 /* 6070 * Run through the mode page, checking to make sure that the bits 6071 * the user changed are actually legal for him to change. 6072 */ 6073 for (i = 0; i < page_index->page_len; i++) { 6074 uint8_t *user_byte, *change_mask, *current_byte; 6075 int bad_bit; 6076 int j; 6077 6078 user_byte = (uint8_t *)page_header + i; 6079 change_mask = page_index->page_data + 6080 (page_index->page_len * CTL_PAGE_CHANGEABLE) + i; 6081 current_byte = page_index->page_data + 6082 (page_index->page_len * CTL_PAGE_CURRENT) + i; 6083 6084 /* 6085 * Check to see whether the user set any bits in this byte 6086 * that he is not allowed to set. 6087 */ 6088 if ((*user_byte & ~(*change_mask)) == 6089 (*current_byte & ~(*change_mask))) 6090 continue; 6091 6092 /* 6093 * Go through bit by bit to determine which one is illegal. 6094 */ 6095 bad_bit = 0; 6096 for (j = 7; j >= 0; j--) { 6097 if ((((1 << i) & ~(*change_mask)) & *user_byte) != 6098 (((1 << i) & ~(*change_mask)) & *current_byte)) { 6099 bad_bit = i; 6100 break; 6101 } 6102 } 6103 ctl_set_invalid_field(ctsio, 6104 /*sks_valid*/ 1, 6105 /*command*/ 0, 6106 /*field*/ *len_used + i, 6107 /*bit_valid*/ 1, 6108 /*bit*/ bad_bit); 6109 free(ctsio->kern_data_ptr, M_CTL); 6110 ctl_done((union ctl_io *)ctsio); 6111 return (CTL_RETVAL_COMPLETE); 6112 } 6113 6114 /* 6115 * Decrement these before we call the page handler, since we may 6116 * end up getting called back one way or another before the handler 6117 * returns to this context. 6118 */ 6119 *len_left -= page_index->page_len; 6120 *len_used += page_index->page_len; 6121 6122 retval = page_index->select_handler(ctsio, page_index, 6123 (uint8_t *)page_header); 6124 6125 /* 6126 * If the page handler returns CTL_RETVAL_QUEUED, then we need to 6127 * wait until this queued command completes to finish processing 6128 * the mode page. If it returns anything other than 6129 * CTL_RETVAL_COMPLETE (e.g. CTL_RETVAL_ERROR), then it should have 6130 * already set the sense information, freed the data pointer, and 6131 * completed the io for us. 6132 */ 6133 if (retval != CTL_RETVAL_COMPLETE) 6134 goto bailout_no_done; 6135 6136 /* 6137 * If the initiator sent us more than one page, parse the next one. 6138 */ 6139 if (*len_left > 0) 6140 goto do_next_page; 6141 6142 ctl_set_success(ctsio); 6143 free(ctsio->kern_data_ptr, M_CTL); 6144 ctl_done((union ctl_io *)ctsio); 6145 6146bailout_no_done: 6147 6148 return (CTL_RETVAL_COMPLETE); 6149 6150} 6151 6152int 6153ctl_mode_select(struct ctl_scsiio *ctsio) 6154{ 6155 int param_len, pf, sp; 6156 int header_size, bd_len; 6157 union ctl_modepage_info *modepage_info; 6158 6159 switch (ctsio->cdb[0]) { 6160 case MODE_SELECT_6: { 6161 struct scsi_mode_select_6 *cdb; 6162 6163 cdb = (struct scsi_mode_select_6 *)ctsio->cdb; 6164 6165 pf = (cdb->byte2 & SMS_PF) ? 1 : 0; 6166 sp = (cdb->byte2 & SMS_SP) ? 1 : 0; 6167 param_len = cdb->length; 6168 header_size = sizeof(struct scsi_mode_header_6); 6169 break; 6170 } 6171 case MODE_SELECT_10: { 6172 struct scsi_mode_select_10 *cdb; 6173 6174 cdb = (struct scsi_mode_select_10 *)ctsio->cdb; 6175 6176 pf = (cdb->byte2 & SMS_PF) ? 1 : 0; 6177 sp = (cdb->byte2 & SMS_SP) ? 1 : 0; 6178 param_len = scsi_2btoul(cdb->length); 6179 header_size = sizeof(struct scsi_mode_header_10); 6180 break; 6181 } 6182 default: 6183 ctl_set_invalid_opcode(ctsio); 6184 ctl_done((union ctl_io *)ctsio); 6185 return (CTL_RETVAL_COMPLETE); 6186 } 6187 6188 /* 6189 * From SPC-3: 6190 * "A parameter list length of zero indicates that the Data-Out Buffer 6191 * shall be empty. This condition shall not be considered as an error." 6192 */ 6193 if (param_len == 0) { 6194 ctl_set_success(ctsio); 6195 ctl_done((union ctl_io *)ctsio); 6196 return (CTL_RETVAL_COMPLETE); 6197 } 6198 6199 /* 6200 * Since we'll hit this the first time through, prior to 6201 * allocation, we don't need to free a data buffer here. 6202 */ 6203 if (param_len < header_size) { 6204 ctl_set_param_len_error(ctsio); 6205 ctl_done((union ctl_io *)ctsio); 6206 return (CTL_RETVAL_COMPLETE); 6207 } 6208 6209 /* 6210 * Allocate the data buffer and grab the user's data. In theory, 6211 * we shouldn't have to sanity check the parameter list length here 6212 * because the maximum size is 64K. We should be able to malloc 6213 * that much without too many problems. 6214 */ 6215 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 6216 ctsio->kern_data_ptr = malloc(param_len, M_CTL, M_WAITOK); 6217 ctsio->kern_data_len = param_len; 6218 ctsio->kern_total_len = param_len; 6219 ctsio->kern_data_resid = 0; 6220 ctsio->kern_rel_offset = 0; 6221 ctsio->kern_sg_entries = 0; 6222 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6223 ctsio->be_move_done = ctl_config_move_done; 6224 ctl_datamove((union ctl_io *)ctsio); 6225 6226 return (CTL_RETVAL_COMPLETE); 6227 } 6228 6229 switch (ctsio->cdb[0]) { 6230 case MODE_SELECT_6: { 6231 struct scsi_mode_header_6 *mh6; 6232 6233 mh6 = (struct scsi_mode_header_6 *)ctsio->kern_data_ptr; 6234 bd_len = mh6->blk_desc_len; 6235 break; 6236 } 6237 case MODE_SELECT_10: { 6238 struct scsi_mode_header_10 *mh10; 6239 6240 mh10 = (struct scsi_mode_header_10 *)ctsio->kern_data_ptr; 6241 bd_len = scsi_2btoul(mh10->blk_desc_len); 6242 break; 6243 } 6244 default: 6245 panic("%s: Invalid CDB type %#x", __func__, ctsio->cdb[0]); 6246 } 6247 6248 if (param_len < (header_size + bd_len)) { 6249 free(ctsio->kern_data_ptr, M_CTL); 6250 ctl_set_param_len_error(ctsio); 6251 ctl_done((union ctl_io *)ctsio); 6252 return (CTL_RETVAL_COMPLETE); 6253 } 6254 6255 /* 6256 * Set the IO_CONT flag, so that if this I/O gets passed to 6257 * ctl_config_write_done(), it'll get passed back to 6258 * ctl_do_mode_select() for further processing, or completion if 6259 * we're all done. 6260 */ 6261 ctsio->io_hdr.flags |= CTL_FLAG_IO_CONT; 6262 ctsio->io_cont = ctl_do_mode_select; 6263 6264 modepage_info = (union ctl_modepage_info *) 6265 ctsio->io_hdr.ctl_private[CTL_PRIV_MODEPAGE].bytes; 6266 memset(modepage_info, 0, sizeof(*modepage_info)); 6267 modepage_info->header.len_left = param_len - header_size - bd_len; 6268 modepage_info->header.len_used = header_size + bd_len; 6269 6270 return (ctl_do_mode_select((union ctl_io *)ctsio)); 6271} 6272 6273int 6274ctl_mode_sense(struct ctl_scsiio *ctsio) 6275{ 6276 struct ctl_lun *lun; 6277 int pc, page_code, dbd, llba, subpage; 6278 int alloc_len, page_len, header_len, total_len; 6279 struct scsi_mode_block_descr *block_desc; 6280 struct ctl_page_index *page_index; 6281 6282 dbd = 0; 6283 llba = 0; 6284 block_desc = NULL; 6285 6286 CTL_DEBUG_PRINT(("ctl_mode_sense\n")); 6287 6288 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6289 switch (ctsio->cdb[0]) { 6290 case MODE_SENSE_6: { 6291 struct scsi_mode_sense_6 *cdb; 6292 6293 cdb = (struct scsi_mode_sense_6 *)ctsio->cdb; 6294 6295 header_len = sizeof(struct scsi_mode_hdr_6); 6296 if (cdb->byte2 & SMS_DBD) 6297 dbd = 1; 6298 else 6299 header_len += sizeof(struct scsi_mode_block_descr); 6300 6301 pc = (cdb->page & SMS_PAGE_CTRL_MASK) >> 6; 6302 page_code = cdb->page & SMS_PAGE_CODE; 6303 subpage = cdb->subpage; 6304 alloc_len = cdb->length; 6305 break; 6306 } 6307 case MODE_SENSE_10: { 6308 struct scsi_mode_sense_10 *cdb; 6309 6310 cdb = (struct scsi_mode_sense_10 *)ctsio->cdb; 6311 6312 header_len = sizeof(struct scsi_mode_hdr_10); 6313 6314 if (cdb->byte2 & SMS_DBD) 6315 dbd = 1; 6316 else 6317 header_len += sizeof(struct scsi_mode_block_descr); 6318 if (cdb->byte2 & SMS10_LLBAA) 6319 llba = 1; 6320 pc = (cdb->page & SMS_PAGE_CTRL_MASK) >> 6; 6321 page_code = cdb->page & SMS_PAGE_CODE; 6322 subpage = cdb->subpage; 6323 alloc_len = scsi_2btoul(cdb->length); 6324 break; 6325 } 6326 default: 6327 ctl_set_invalid_opcode(ctsio); 6328 ctl_done((union ctl_io *)ctsio); 6329 return (CTL_RETVAL_COMPLETE); 6330 break; /* NOTREACHED */ 6331 } 6332 6333 /* 6334 * We have to make a first pass through to calculate the size of 6335 * the pages that match the user's query. Then we allocate enough 6336 * memory to hold it, and actually copy the data into the buffer. 6337 */ 6338 switch (page_code) { 6339 case SMS_ALL_PAGES_PAGE: { 6340 u_int i; 6341 6342 page_len = 0; 6343 6344 /* 6345 * At the moment, values other than 0 and 0xff here are 6346 * reserved according to SPC-3. 6347 */ 6348 if ((subpage != SMS_SUBPAGE_PAGE_0) 6349 && (subpage != SMS_SUBPAGE_ALL)) { 6350 ctl_set_invalid_field(ctsio, 6351 /*sks_valid*/ 1, 6352 /*command*/ 1, 6353 /*field*/ 3, 6354 /*bit_valid*/ 0, 6355 /*bit*/ 0); 6356 ctl_done((union ctl_io *)ctsio); 6357 return (CTL_RETVAL_COMPLETE); 6358 } 6359 6360 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6361 page_index = &lun->mode_pages.index[i]; 6362 6363 /* Make sure the page is supported for this dev type */ 6364 if (lun->be_lun->lun_type == T_DIRECT && 6365 (page_index->page_flags & CTL_PAGE_FLAG_DIRECT) == 0) 6366 continue; 6367 if (lun->be_lun->lun_type == T_PROCESSOR && 6368 (page_index->page_flags & CTL_PAGE_FLAG_PROC) == 0) 6369 continue; 6370 if (lun->be_lun->lun_type == T_CDROM && 6371 (page_index->page_flags & CTL_PAGE_FLAG_CDROM) == 0) 6372 continue; 6373 6374 /* 6375 * We don't use this subpage if the user didn't 6376 * request all subpages. 6377 */ 6378 if ((page_index->subpage != 0) 6379 && (subpage == SMS_SUBPAGE_PAGE_0)) 6380 continue; 6381 6382#if 0 6383 printf("found page %#x len %d\n", 6384 page_index->page_code & SMPH_PC_MASK, 6385 page_index->page_len); 6386#endif 6387 page_len += page_index->page_len; 6388 } 6389 break; 6390 } 6391 default: { 6392 u_int i; 6393 6394 page_len = 0; 6395 6396 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6397 page_index = &lun->mode_pages.index[i]; 6398 6399 /* Make sure the page is supported for this dev type */ 6400 if (lun->be_lun->lun_type == T_DIRECT && 6401 (page_index->page_flags & CTL_PAGE_FLAG_DIRECT) == 0) 6402 continue; 6403 if (lun->be_lun->lun_type == T_PROCESSOR && 6404 (page_index->page_flags & CTL_PAGE_FLAG_PROC) == 0) 6405 continue; 6406 if (lun->be_lun->lun_type == T_CDROM && 6407 (page_index->page_flags & CTL_PAGE_FLAG_CDROM) == 0) 6408 continue; 6409 6410 /* Look for the right page code */ 6411 if ((page_index->page_code & SMPH_PC_MASK) != page_code) 6412 continue; 6413 6414 /* Look for the right subpage or the subpage wildcard*/ 6415 if ((page_index->subpage != subpage) 6416 && (subpage != SMS_SUBPAGE_ALL)) 6417 continue; 6418 6419#if 0 6420 printf("found page %#x len %d\n", 6421 page_index->page_code & SMPH_PC_MASK, 6422 page_index->page_len); 6423#endif 6424 6425 page_len += page_index->page_len; 6426 } 6427 6428 if (page_len == 0) { 6429 ctl_set_invalid_field(ctsio, 6430 /*sks_valid*/ 1, 6431 /*command*/ 1, 6432 /*field*/ 2, 6433 /*bit_valid*/ 1, 6434 /*bit*/ 5); 6435 ctl_done((union ctl_io *)ctsio); 6436 return (CTL_RETVAL_COMPLETE); 6437 } 6438 break; 6439 } 6440 } 6441 6442 total_len = header_len + page_len; 6443#if 0 6444 printf("header_len = %d, page_len = %d, total_len = %d\n", 6445 header_len, page_len, total_len); 6446#endif 6447 6448 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 6449 ctsio->kern_sg_entries = 0; 6450 ctsio->kern_data_resid = 0; 6451 ctsio->kern_rel_offset = 0; 6452 if (total_len < alloc_len) { 6453 ctsio->residual = alloc_len - total_len; 6454 ctsio->kern_data_len = total_len; 6455 ctsio->kern_total_len = total_len; 6456 } else { 6457 ctsio->residual = 0; 6458 ctsio->kern_data_len = alloc_len; 6459 ctsio->kern_total_len = alloc_len; 6460 } 6461 6462 switch (ctsio->cdb[0]) { 6463 case MODE_SENSE_6: { 6464 struct scsi_mode_hdr_6 *header; 6465 6466 header = (struct scsi_mode_hdr_6 *)ctsio->kern_data_ptr; 6467 6468 header->datalen = MIN(total_len - 1, 254); 6469 if (lun->be_lun->lun_type == T_DIRECT) { 6470 header->dev_specific = 0x10; /* DPOFUA */ 6471 if ((lun->be_lun->flags & CTL_LUN_FLAG_READONLY) || 6472 (lun->MODE_CTRL.eca_and_aen & SCP_SWP) != 0) 6473 header->dev_specific |= 0x80; /* WP */ 6474 } 6475 if (dbd) 6476 header->block_descr_len = 0; 6477 else 6478 header->block_descr_len = 6479 sizeof(struct scsi_mode_block_descr); 6480 block_desc = (struct scsi_mode_block_descr *)&header[1]; 6481 break; 6482 } 6483 case MODE_SENSE_10: { 6484 struct scsi_mode_hdr_10 *header; 6485 int datalen; 6486 6487 header = (struct scsi_mode_hdr_10 *)ctsio->kern_data_ptr; 6488 6489 datalen = MIN(total_len - 2, 65533); 6490 scsi_ulto2b(datalen, header->datalen); 6491 if (lun->be_lun->lun_type == T_DIRECT) { 6492 header->dev_specific = 0x10; /* DPOFUA */ 6493 if ((lun->be_lun->flags & CTL_LUN_FLAG_READONLY) || 6494 (lun->MODE_CTRL.eca_and_aen & SCP_SWP) != 0) 6495 header->dev_specific |= 0x80; /* WP */ 6496 } 6497 if (dbd) 6498 scsi_ulto2b(0, header->block_descr_len); 6499 else 6500 scsi_ulto2b(sizeof(struct scsi_mode_block_descr), 6501 header->block_descr_len); 6502 block_desc = (struct scsi_mode_block_descr *)&header[1]; 6503 break; 6504 } 6505 default: 6506 panic("%s: Invalid CDB type %#x", __func__, ctsio->cdb[0]); 6507 } 6508 6509 /* 6510 * If we've got a disk, use its blocksize in the block 6511 * descriptor. Otherwise, just set it to 0. 6512 */ 6513 if (dbd == 0) { 6514 if (lun->be_lun->lun_type == T_DIRECT) 6515 scsi_ulto3b(lun->be_lun->blocksize, 6516 block_desc->block_len); 6517 else 6518 scsi_ulto3b(0, block_desc->block_len); 6519 } 6520 6521 switch (page_code) { 6522 case SMS_ALL_PAGES_PAGE: { 6523 int i, data_used; 6524 6525 data_used = header_len; 6526 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6527 struct ctl_page_index *page_index; 6528 6529 page_index = &lun->mode_pages.index[i]; 6530 if (lun->be_lun->lun_type == T_DIRECT && 6531 (page_index->page_flags & CTL_PAGE_FLAG_DIRECT) == 0) 6532 continue; 6533 if (lun->be_lun->lun_type == T_PROCESSOR && 6534 (page_index->page_flags & CTL_PAGE_FLAG_PROC) == 0) 6535 continue; 6536 if (lun->be_lun->lun_type == T_CDROM && 6537 (page_index->page_flags & CTL_PAGE_FLAG_CDROM) == 0) 6538 continue; 6539 6540 /* 6541 * We don't use this subpage if the user didn't 6542 * request all subpages. We already checked (above) 6543 * to make sure the user only specified a subpage 6544 * of 0 or 0xff in the SMS_ALL_PAGES_PAGE case. 6545 */ 6546 if ((page_index->subpage != 0) 6547 && (subpage == SMS_SUBPAGE_PAGE_0)) 6548 continue; 6549 6550 /* 6551 * Call the handler, if it exists, to update the 6552 * page to the latest values. 6553 */ 6554 if (page_index->sense_handler != NULL) 6555 page_index->sense_handler(ctsio, page_index,pc); 6556 6557 memcpy(ctsio->kern_data_ptr + data_used, 6558 page_index->page_data + 6559 (page_index->page_len * pc), 6560 page_index->page_len); 6561 data_used += page_index->page_len; 6562 } 6563 break; 6564 } 6565 default: { 6566 int i, data_used; 6567 6568 data_used = header_len; 6569 6570 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6571 struct ctl_page_index *page_index; 6572 6573 page_index = &lun->mode_pages.index[i]; 6574 6575 /* Look for the right page code */ 6576 if ((page_index->page_code & SMPH_PC_MASK) != page_code) 6577 continue; 6578 6579 /* Look for the right subpage or the subpage wildcard*/ 6580 if ((page_index->subpage != subpage) 6581 && (subpage != SMS_SUBPAGE_ALL)) 6582 continue; 6583 6584 /* Make sure the page is supported for this dev type */ 6585 if (lun->be_lun->lun_type == T_DIRECT && 6586 (page_index->page_flags & CTL_PAGE_FLAG_DIRECT) == 0) 6587 continue; 6588 if (lun->be_lun->lun_type == T_PROCESSOR && 6589 (page_index->page_flags & CTL_PAGE_FLAG_PROC) == 0) 6590 continue; 6591 if (lun->be_lun->lun_type == T_CDROM && 6592 (page_index->page_flags & CTL_PAGE_FLAG_CDROM) == 0) 6593 continue; 6594 6595 /* 6596 * Call the handler, if it exists, to update the 6597 * page to the latest values. 6598 */ 6599 if (page_index->sense_handler != NULL) 6600 page_index->sense_handler(ctsio, page_index,pc); 6601 6602 memcpy(ctsio->kern_data_ptr + data_used, 6603 page_index->page_data + 6604 (page_index->page_len * pc), 6605 page_index->page_len); 6606 data_used += page_index->page_len; 6607 } 6608 break; 6609 } 6610 } 6611 6612 ctl_set_success(ctsio); 6613 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6614 ctsio->be_move_done = ctl_config_move_done; 6615 ctl_datamove((union ctl_io *)ctsio); 6616 return (CTL_RETVAL_COMPLETE); 6617} 6618 6619int 6620ctl_lbp_log_sense_handler(struct ctl_scsiio *ctsio, 6621 struct ctl_page_index *page_index, 6622 int pc) 6623{ 6624 struct ctl_lun *lun; 6625 struct scsi_log_param_header *phdr; 6626 uint8_t *data; 6627 uint64_t val; 6628 6629 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6630 data = page_index->page_data; 6631 6632 if (lun->backend->lun_attr != NULL && 6633 (val = lun->backend->lun_attr(lun->be_lun->be_lun, "blocksavail")) 6634 != UINT64_MAX) { 6635 phdr = (struct scsi_log_param_header *)data; 6636 scsi_ulto2b(0x0001, phdr->param_code); 6637 phdr->param_control = SLP_LBIN | SLP_LP; 6638 phdr->param_len = 8; 6639 data = (uint8_t *)(phdr + 1); 6640 scsi_ulto4b(val >> CTL_LBP_EXPONENT, data); 6641 data[4] = 0x02; /* per-pool */ 6642 data += phdr->param_len; 6643 } 6644 6645 if (lun->backend->lun_attr != NULL && 6646 (val = lun->backend->lun_attr(lun->be_lun->be_lun, "blocksused")) 6647 != UINT64_MAX) { 6648 phdr = (struct scsi_log_param_header *)data; 6649 scsi_ulto2b(0x0002, phdr->param_code); 6650 phdr->param_control = SLP_LBIN | SLP_LP; 6651 phdr->param_len = 8; 6652 data = (uint8_t *)(phdr + 1); 6653 scsi_ulto4b(val >> CTL_LBP_EXPONENT, data); 6654 data[4] = 0x01; /* per-LUN */ 6655 data += phdr->param_len; 6656 } 6657 6658 if (lun->backend->lun_attr != NULL && 6659 (val = lun->backend->lun_attr(lun->be_lun->be_lun, "poolblocksavail")) 6660 != UINT64_MAX) { 6661 phdr = (struct scsi_log_param_header *)data; 6662 scsi_ulto2b(0x00f1, phdr->param_code); 6663 phdr->param_control = SLP_LBIN | SLP_LP; 6664 phdr->param_len = 8; 6665 data = (uint8_t *)(phdr + 1); 6666 scsi_ulto4b(val >> CTL_LBP_EXPONENT, data); 6667 data[4] = 0x02; /* per-pool */ 6668 data += phdr->param_len; 6669 } 6670 6671 if (lun->backend->lun_attr != NULL && 6672 (val = lun->backend->lun_attr(lun->be_lun->be_lun, "poolblocksused")) 6673 != UINT64_MAX) { 6674 phdr = (struct scsi_log_param_header *)data; 6675 scsi_ulto2b(0x00f2, phdr->param_code); 6676 phdr->param_control = SLP_LBIN | SLP_LP; 6677 phdr->param_len = 8; 6678 data = (uint8_t *)(phdr + 1); 6679 scsi_ulto4b(val >> CTL_LBP_EXPONENT, data); 6680 data[4] = 0x02; /* per-pool */ 6681 data += phdr->param_len; 6682 } 6683 6684 page_index->page_len = data - page_index->page_data; 6685 return (0); 6686} 6687 6688int 6689ctl_sap_log_sense_handler(struct ctl_scsiio *ctsio, 6690 struct ctl_page_index *page_index, 6691 int pc) 6692{ 6693 struct ctl_lun *lun; 6694 struct stat_page *data; 6695 uint64_t rn, wn, rb, wb; 6696 struct bintime rt, wt; 6697 int i; 6698 6699 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6700 data = (struct stat_page *)page_index->page_data; 6701 6702 scsi_ulto2b(SLP_SAP, data->sap.hdr.param_code); 6703 data->sap.hdr.param_control = SLP_LBIN; 6704 data->sap.hdr.param_len = sizeof(struct scsi_log_stat_and_perf) - 6705 sizeof(struct scsi_log_param_header); 6706 rn = wn = rb = wb = 0; 6707 bintime_clear(&rt); 6708 bintime_clear(&wt); 6709 for (i = 0; i < CTL_MAX_PORTS; i++) { 6710 rn += lun->stats.ports[i].operations[CTL_STATS_READ]; 6711 wn += lun->stats.ports[i].operations[CTL_STATS_WRITE]; 6712 rb += lun->stats.ports[i].bytes[CTL_STATS_READ]; 6713 wb += lun->stats.ports[i].bytes[CTL_STATS_WRITE]; 6714 bintime_add(&rt, &lun->stats.ports[i].time[CTL_STATS_READ]); 6715 bintime_add(&wt, &lun->stats.ports[i].time[CTL_STATS_WRITE]); 6716 } 6717 scsi_u64to8b(rn, data->sap.read_num); 6718 scsi_u64to8b(wn, data->sap.write_num); 6719 if (lun->stats.blocksize > 0) { 6720 scsi_u64to8b(wb / lun->stats.blocksize, 6721 data->sap.recvieved_lba); 6722 scsi_u64to8b(rb / lun->stats.blocksize, 6723 data->sap.transmitted_lba); 6724 } 6725 scsi_u64to8b((uint64_t)rt.sec * 1000 + rt.frac / (UINT64_MAX / 1000), 6726 data->sap.read_int); 6727 scsi_u64to8b((uint64_t)wt.sec * 1000 + wt.frac / (UINT64_MAX / 1000), 6728 data->sap.write_int); 6729 scsi_u64to8b(0, data->sap.weighted_num); 6730 scsi_u64to8b(0, data->sap.weighted_int); 6731 scsi_ulto2b(SLP_IT, data->it.hdr.param_code); 6732 data->it.hdr.param_control = SLP_LBIN; 6733 data->it.hdr.param_len = sizeof(struct scsi_log_idle_time) - 6734 sizeof(struct scsi_log_param_header); 6735#ifdef CTL_TIME_IO 6736 scsi_u64to8b(lun->idle_time / SBT_1MS, data->it.idle_int); 6737#endif 6738 scsi_ulto2b(SLP_TI, data->ti.hdr.param_code); 6739 data->it.hdr.param_control = SLP_LBIN; 6740 data->ti.hdr.param_len = sizeof(struct scsi_log_time_interval) - 6741 sizeof(struct scsi_log_param_header); 6742 scsi_ulto4b(3, data->ti.exponent); 6743 scsi_ulto4b(1, data->ti.integer); 6744 return (0); 6745} 6746 6747int 6748ctl_ie_log_sense_handler(struct ctl_scsiio *ctsio, 6749 struct ctl_page_index *page_index, 6750 int pc) 6751{ 6752 struct ctl_lun *lun; 6753 struct scsi_log_informational_exceptions *data; 6754 6755 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6756 data = (struct scsi_log_informational_exceptions *)page_index->page_data; 6757 6758 scsi_ulto2b(SLP_IE_GEN, data->hdr.param_code); 6759 data->hdr.param_control = SLP_LBIN; 6760 data->hdr.param_len = sizeof(struct scsi_log_informational_exceptions) - 6761 sizeof(struct scsi_log_param_header); 6762 data->ie_asc = lun->ie_asc; 6763 data->ie_ascq = lun->ie_ascq; 6764 data->temperature = 0xff; 6765 return (0); 6766} 6767 6768int 6769ctl_log_sense(struct ctl_scsiio *ctsio) 6770{ 6771 struct ctl_lun *lun; 6772 int i, pc, page_code, subpage; 6773 int alloc_len, total_len; 6774 struct ctl_page_index *page_index; 6775 struct scsi_log_sense *cdb; 6776 struct scsi_log_header *header; 6777 6778 CTL_DEBUG_PRINT(("ctl_log_sense\n")); 6779 6780 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6781 cdb = (struct scsi_log_sense *)ctsio->cdb; 6782 pc = (cdb->page & SLS_PAGE_CTRL_MASK) >> 6; 6783 page_code = cdb->page & SLS_PAGE_CODE; 6784 subpage = cdb->subpage; 6785 alloc_len = scsi_2btoul(cdb->length); 6786 6787 page_index = NULL; 6788 for (i = 0; i < CTL_NUM_LOG_PAGES; i++) { 6789 page_index = &lun->log_pages.index[i]; 6790 6791 /* Look for the right page code */ 6792 if ((page_index->page_code & SL_PAGE_CODE) != page_code) 6793 continue; 6794 6795 /* Look for the right subpage or the subpage wildcard*/ 6796 if (page_index->subpage != subpage) 6797 continue; 6798 6799 break; 6800 } 6801 if (i >= CTL_NUM_LOG_PAGES) { 6802 ctl_set_invalid_field(ctsio, 6803 /*sks_valid*/ 1, 6804 /*command*/ 1, 6805 /*field*/ 2, 6806 /*bit_valid*/ 0, 6807 /*bit*/ 0); 6808 ctl_done((union ctl_io *)ctsio); 6809 return (CTL_RETVAL_COMPLETE); 6810 } 6811 6812 total_len = sizeof(struct scsi_log_header) + page_index->page_len; 6813 6814 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 6815 ctsio->kern_sg_entries = 0; 6816 ctsio->kern_data_resid = 0; 6817 ctsio->kern_rel_offset = 0; 6818 if (total_len < alloc_len) { 6819 ctsio->residual = alloc_len - total_len; 6820 ctsio->kern_data_len = total_len; 6821 ctsio->kern_total_len = total_len; 6822 } else { 6823 ctsio->residual = 0; 6824 ctsio->kern_data_len = alloc_len; 6825 ctsio->kern_total_len = alloc_len; 6826 } 6827 6828 header = (struct scsi_log_header *)ctsio->kern_data_ptr; 6829 header->page = page_index->page_code; 6830 if (page_index->page_code == SLS_LOGICAL_BLOCK_PROVISIONING) 6831 header->page |= SL_DS; 6832 if (page_index->subpage) { 6833 header->page |= SL_SPF; 6834 header->subpage = page_index->subpage; 6835 } 6836 scsi_ulto2b(page_index->page_len, header->datalen); 6837 6838 /* 6839 * Call the handler, if it exists, to update the 6840 * page to the latest values. 6841 */ 6842 if (page_index->sense_handler != NULL) 6843 page_index->sense_handler(ctsio, page_index, pc); 6844 6845 memcpy(header + 1, page_index->page_data, page_index->page_len); 6846 6847 ctl_set_success(ctsio); 6848 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6849 ctsio->be_move_done = ctl_config_move_done; 6850 ctl_datamove((union ctl_io *)ctsio); 6851 return (CTL_RETVAL_COMPLETE); 6852} 6853 6854int 6855ctl_read_capacity(struct ctl_scsiio *ctsio) 6856{ 6857 struct scsi_read_capacity *cdb; 6858 struct scsi_read_capacity_data *data; 6859 struct ctl_lun *lun; 6860 uint32_t lba; 6861 6862 CTL_DEBUG_PRINT(("ctl_read_capacity\n")); 6863 6864 cdb = (struct scsi_read_capacity *)ctsio->cdb; 6865 6866 lba = scsi_4btoul(cdb->addr); 6867 if (((cdb->pmi & SRC_PMI) == 0) 6868 && (lba != 0)) { 6869 ctl_set_invalid_field(/*ctsio*/ ctsio, 6870 /*sks_valid*/ 1, 6871 /*command*/ 1, 6872 /*field*/ 2, 6873 /*bit_valid*/ 0, 6874 /*bit*/ 0); 6875 ctl_done((union ctl_io *)ctsio); 6876 return (CTL_RETVAL_COMPLETE); 6877 } 6878 6879 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6880 6881 ctsio->kern_data_ptr = malloc(sizeof(*data), M_CTL, M_WAITOK | M_ZERO); 6882 data = (struct scsi_read_capacity_data *)ctsio->kern_data_ptr; 6883 ctsio->residual = 0; 6884 ctsio->kern_data_len = sizeof(*data); 6885 ctsio->kern_total_len = sizeof(*data); 6886 ctsio->kern_data_resid = 0; 6887 ctsio->kern_rel_offset = 0; 6888 ctsio->kern_sg_entries = 0; 6889 6890 /* 6891 * If the maximum LBA is greater than 0xfffffffe, the user must 6892 * issue a SERVICE ACTION IN (16) command, with the read capacity 6893 * serivce action set. 6894 */ 6895 if (lun->be_lun->maxlba > 0xfffffffe) 6896 scsi_ulto4b(0xffffffff, data->addr); 6897 else 6898 scsi_ulto4b(lun->be_lun->maxlba, data->addr); 6899 6900 /* 6901 * XXX KDM this may not be 512 bytes... 6902 */ 6903 scsi_ulto4b(lun->be_lun->blocksize, data->length); 6904 6905 ctl_set_success(ctsio); 6906 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6907 ctsio->be_move_done = ctl_config_move_done; 6908 ctl_datamove((union ctl_io *)ctsio); 6909 return (CTL_RETVAL_COMPLETE); 6910} 6911 6912int 6913ctl_read_capacity_16(struct ctl_scsiio *ctsio) 6914{ 6915 struct scsi_read_capacity_16 *cdb; 6916 struct scsi_read_capacity_data_long *data; 6917 struct ctl_lun *lun; 6918 uint64_t lba; 6919 uint32_t alloc_len; 6920 6921 CTL_DEBUG_PRINT(("ctl_read_capacity_16\n")); 6922 6923 cdb = (struct scsi_read_capacity_16 *)ctsio->cdb; 6924 6925 alloc_len = scsi_4btoul(cdb->alloc_len); 6926 lba = scsi_8btou64(cdb->addr); 6927 6928 if ((cdb->reladr & SRC16_PMI) 6929 && (lba != 0)) { 6930 ctl_set_invalid_field(/*ctsio*/ ctsio, 6931 /*sks_valid*/ 1, 6932 /*command*/ 1, 6933 /*field*/ 2, 6934 /*bit_valid*/ 0, 6935 /*bit*/ 0); 6936 ctl_done((union ctl_io *)ctsio); 6937 return (CTL_RETVAL_COMPLETE); 6938 } 6939 6940 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6941 6942 ctsio->kern_data_ptr = malloc(sizeof(*data), M_CTL, M_WAITOK | M_ZERO); 6943 data = (struct scsi_read_capacity_data_long *)ctsio->kern_data_ptr; 6944 6945 if (sizeof(*data) < alloc_len) { 6946 ctsio->residual = alloc_len - sizeof(*data); 6947 ctsio->kern_data_len = sizeof(*data); 6948 ctsio->kern_total_len = sizeof(*data); 6949 } else { 6950 ctsio->residual = 0; 6951 ctsio->kern_data_len = alloc_len; 6952 ctsio->kern_total_len = alloc_len; 6953 } 6954 ctsio->kern_data_resid = 0; 6955 ctsio->kern_rel_offset = 0; 6956 ctsio->kern_sg_entries = 0; 6957 6958 scsi_u64to8b(lun->be_lun->maxlba, data->addr); 6959 /* XXX KDM this may not be 512 bytes... */ 6960 scsi_ulto4b(lun->be_lun->blocksize, data->length); 6961 data->prot_lbppbe = lun->be_lun->pblockexp & SRC16_LBPPBE; 6962 scsi_ulto2b(lun->be_lun->pblockoff & SRC16_LALBA_A, data->lalba_lbp); 6963 if (lun->be_lun->flags & CTL_LUN_FLAG_UNMAP) 6964 data->lalba_lbp[0] |= SRC16_LBPME | SRC16_LBPRZ; 6965 6966 ctl_set_success(ctsio); 6967 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6968 ctsio->be_move_done = ctl_config_move_done; 6969 ctl_datamove((union ctl_io *)ctsio); 6970 return (CTL_RETVAL_COMPLETE); 6971} 6972 6973int 6974ctl_get_lba_status(struct ctl_scsiio *ctsio) 6975{ 6976 struct scsi_get_lba_status *cdb; 6977 struct scsi_get_lba_status_data *data; 6978 struct ctl_lun *lun; 6979 struct ctl_lba_len_flags *lbalen; 6980 uint64_t lba; 6981 uint32_t alloc_len, total_len; 6982 int retval; 6983 6984 CTL_DEBUG_PRINT(("ctl_get_lba_status\n")); 6985 6986 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6987 cdb = (struct scsi_get_lba_status *)ctsio->cdb; 6988 lba = scsi_8btou64(cdb->addr); 6989 alloc_len = scsi_4btoul(cdb->alloc_len); 6990 6991 if (lba > lun->be_lun->maxlba) { 6992 ctl_set_lba_out_of_range(ctsio, lba); 6993 ctl_done((union ctl_io *)ctsio); 6994 return (CTL_RETVAL_COMPLETE); 6995 } 6996 6997 total_len = sizeof(*data) + sizeof(data->descr[0]); 6998 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 6999 data = (struct scsi_get_lba_status_data *)ctsio->kern_data_ptr; 7000 7001 if (total_len < alloc_len) { 7002 ctsio->residual = alloc_len - total_len; 7003 ctsio->kern_data_len = total_len; 7004 ctsio->kern_total_len = total_len; 7005 } else { 7006 ctsio->residual = 0; 7007 ctsio->kern_data_len = alloc_len; 7008 ctsio->kern_total_len = alloc_len; 7009 } 7010 ctsio->kern_data_resid = 0; 7011 ctsio->kern_rel_offset = 0; 7012 ctsio->kern_sg_entries = 0; 7013 7014 /* Fill dummy data in case backend can't tell anything. */ 7015 scsi_ulto4b(4 + sizeof(data->descr[0]), data->length); 7016 scsi_u64to8b(lba, data->descr[0].addr); 7017 scsi_ulto4b(MIN(UINT32_MAX, lun->be_lun->maxlba + 1 - lba), 7018 data->descr[0].length); 7019 data->descr[0].status = 0; /* Mapped or unknown. */ 7020 7021 ctl_set_success(ctsio); 7022 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7023 ctsio->be_move_done = ctl_config_move_done; 7024 7025 lbalen = (struct ctl_lba_len_flags *)&ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 7026 lbalen->lba = lba; 7027 lbalen->len = total_len; 7028 lbalen->flags = 0; 7029 retval = lun->backend->config_read((union ctl_io *)ctsio); 7030 return (CTL_RETVAL_COMPLETE); 7031} 7032 7033int 7034ctl_read_defect(struct ctl_scsiio *ctsio) 7035{ 7036 struct scsi_read_defect_data_10 *ccb10; 7037 struct scsi_read_defect_data_12 *ccb12; 7038 struct scsi_read_defect_data_hdr_10 *data10; 7039 struct scsi_read_defect_data_hdr_12 *data12; 7040 uint32_t alloc_len, data_len; 7041 uint8_t format; 7042 7043 CTL_DEBUG_PRINT(("ctl_read_defect\n")); 7044 7045 if (ctsio->cdb[0] == READ_DEFECT_DATA_10) { 7046 ccb10 = (struct scsi_read_defect_data_10 *)&ctsio->cdb; 7047 format = ccb10->format; 7048 alloc_len = scsi_2btoul(ccb10->alloc_length); 7049 data_len = sizeof(*data10); 7050 } else { 7051 ccb12 = (struct scsi_read_defect_data_12 *)&ctsio->cdb; 7052 format = ccb12->format; 7053 alloc_len = scsi_4btoul(ccb12->alloc_length); 7054 data_len = sizeof(*data12); 7055 } 7056 if (alloc_len == 0) { 7057 ctl_set_success(ctsio); 7058 ctl_done((union ctl_io *)ctsio); 7059 return (CTL_RETVAL_COMPLETE); 7060 } 7061 7062 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 7063 if (data_len < alloc_len) { 7064 ctsio->residual = alloc_len - data_len; 7065 ctsio->kern_data_len = data_len; 7066 ctsio->kern_total_len = data_len; 7067 } else { 7068 ctsio->residual = 0; 7069 ctsio->kern_data_len = alloc_len; 7070 ctsio->kern_total_len = alloc_len; 7071 } 7072 ctsio->kern_data_resid = 0; 7073 ctsio->kern_rel_offset = 0; 7074 ctsio->kern_sg_entries = 0; 7075 7076 if (ctsio->cdb[0] == READ_DEFECT_DATA_10) { 7077 data10 = (struct scsi_read_defect_data_hdr_10 *) 7078 ctsio->kern_data_ptr; 7079 data10->format = format; 7080 scsi_ulto2b(0, data10->length); 7081 } else { 7082 data12 = (struct scsi_read_defect_data_hdr_12 *) 7083 ctsio->kern_data_ptr; 7084 data12->format = format; 7085 scsi_ulto2b(0, data12->generation); 7086 scsi_ulto4b(0, data12->length); 7087 } 7088 7089 ctl_set_success(ctsio); 7090 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7091 ctsio->be_move_done = ctl_config_move_done; 7092 ctl_datamove((union ctl_io *)ctsio); 7093 return (CTL_RETVAL_COMPLETE); 7094} 7095 7096int 7097ctl_report_tagret_port_groups(struct ctl_scsiio *ctsio) 7098{ 7099 struct scsi_maintenance_in *cdb; 7100 int retval; 7101 int alloc_len, ext, total_len = 0, g, pc, pg, ts, os; 7102 int num_ha_groups, num_target_ports, shared_group; 7103 struct ctl_lun *lun; 7104 struct ctl_softc *softc; 7105 struct ctl_port *port; 7106 struct scsi_target_group_data *rtg_ptr; 7107 struct scsi_target_group_data_extended *rtg_ext_ptr; 7108 struct scsi_target_port_group_descriptor *tpg_desc; 7109 7110 CTL_DEBUG_PRINT(("ctl_report_tagret_port_groups\n")); 7111 7112 cdb = (struct scsi_maintenance_in *)ctsio->cdb; 7113 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7114 softc = lun->ctl_softc; 7115 7116 retval = CTL_RETVAL_COMPLETE; 7117 7118 switch (cdb->byte2 & STG_PDF_MASK) { 7119 case STG_PDF_LENGTH: 7120 ext = 0; 7121 break; 7122 case STG_PDF_EXTENDED: 7123 ext = 1; 7124 break; 7125 default: 7126 ctl_set_invalid_field(/*ctsio*/ ctsio, 7127 /*sks_valid*/ 1, 7128 /*command*/ 1, 7129 /*field*/ 2, 7130 /*bit_valid*/ 1, 7131 /*bit*/ 5); 7132 ctl_done((union ctl_io *)ctsio); 7133 return(retval); 7134 } 7135 7136 num_target_ports = 0; 7137 shared_group = (softc->is_single != 0); 7138 mtx_lock(&softc->ctl_lock); 7139 STAILQ_FOREACH(port, &softc->port_list, links) { 7140 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 7141 continue; 7142 if (ctl_lun_map_to_port(port, lun->lun) >= CTL_MAX_LUNS) 7143 continue; 7144 num_target_ports++; 7145 if (port->status & CTL_PORT_STATUS_HA_SHARED) 7146 shared_group = 1; 7147 } 7148 mtx_unlock(&softc->ctl_lock); 7149 num_ha_groups = (softc->is_single) ? 0 : NUM_HA_SHELVES; 7150 7151 if (ext) 7152 total_len = sizeof(struct scsi_target_group_data_extended); 7153 else 7154 total_len = sizeof(struct scsi_target_group_data); 7155 total_len += sizeof(struct scsi_target_port_group_descriptor) * 7156 (shared_group + num_ha_groups) + 7157 sizeof(struct scsi_target_port_descriptor) * num_target_ports; 7158 7159 alloc_len = scsi_4btoul(cdb->length); 7160 7161 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7162 7163 ctsio->kern_sg_entries = 0; 7164 7165 if (total_len < alloc_len) { 7166 ctsio->residual = alloc_len - total_len; 7167 ctsio->kern_data_len = total_len; 7168 ctsio->kern_total_len = total_len; 7169 } else { 7170 ctsio->residual = 0; 7171 ctsio->kern_data_len = alloc_len; 7172 ctsio->kern_total_len = alloc_len; 7173 } 7174 ctsio->kern_data_resid = 0; 7175 ctsio->kern_rel_offset = 0; 7176 7177 if (ext) { 7178 rtg_ext_ptr = (struct scsi_target_group_data_extended *) 7179 ctsio->kern_data_ptr; 7180 scsi_ulto4b(total_len - 4, rtg_ext_ptr->length); 7181 rtg_ext_ptr->format_type = 0x10; 7182 rtg_ext_ptr->implicit_transition_time = 0; 7183 tpg_desc = &rtg_ext_ptr->groups[0]; 7184 } else { 7185 rtg_ptr = (struct scsi_target_group_data *) 7186 ctsio->kern_data_ptr; 7187 scsi_ulto4b(total_len - 4, rtg_ptr->length); 7188 tpg_desc = &rtg_ptr->groups[0]; 7189 } 7190 7191 mtx_lock(&softc->ctl_lock); 7192 pg = softc->port_min / softc->port_cnt; 7193 if (lun->flags & (CTL_LUN_PRIMARY_SC | CTL_LUN_PEER_SC_PRIMARY)) { 7194 /* Some shelf is known to be primary. */ 7195 if (softc->ha_link == CTL_HA_LINK_OFFLINE) 7196 os = TPG_ASYMMETRIC_ACCESS_UNAVAILABLE; 7197 else if (softc->ha_link == CTL_HA_LINK_UNKNOWN) 7198 os = TPG_ASYMMETRIC_ACCESS_TRANSITIONING; 7199 else if (softc->ha_mode == CTL_HA_MODE_ACT_STBY) 7200 os = TPG_ASYMMETRIC_ACCESS_STANDBY; 7201 else 7202 os = TPG_ASYMMETRIC_ACCESS_NONOPTIMIZED; 7203 if (lun->flags & CTL_LUN_PRIMARY_SC) { 7204 ts = TPG_ASYMMETRIC_ACCESS_OPTIMIZED; 7205 } else { 7206 ts = os; 7207 os = TPG_ASYMMETRIC_ACCESS_OPTIMIZED; 7208 } 7209 } else { 7210 /* No known primary shelf. */ 7211 if (softc->ha_link == CTL_HA_LINK_OFFLINE) { 7212 ts = TPG_ASYMMETRIC_ACCESS_UNAVAILABLE; 7213 os = TPG_ASYMMETRIC_ACCESS_OPTIMIZED; 7214 } else if (softc->ha_link == CTL_HA_LINK_UNKNOWN) { 7215 ts = TPG_ASYMMETRIC_ACCESS_TRANSITIONING; 7216 os = TPG_ASYMMETRIC_ACCESS_OPTIMIZED; 7217 } else { 7218 ts = os = TPG_ASYMMETRIC_ACCESS_TRANSITIONING; 7219 } 7220 } 7221 if (shared_group) { 7222 tpg_desc->pref_state = ts; 7223 tpg_desc->support = TPG_AO_SUP | TPG_AN_SUP | TPG_S_SUP | 7224 TPG_U_SUP | TPG_T_SUP; 7225 scsi_ulto2b(1, tpg_desc->target_port_group); 7226 tpg_desc->status = TPG_IMPLICIT; 7227 pc = 0; 7228 STAILQ_FOREACH(port, &softc->port_list, links) { 7229 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 7230 continue; 7231 if (!softc->is_single && 7232 (port->status & CTL_PORT_STATUS_HA_SHARED) == 0) 7233 continue; 7234 if (ctl_lun_map_to_port(port, lun->lun) >= CTL_MAX_LUNS) 7235 continue; 7236 scsi_ulto2b(port->targ_port, tpg_desc->descriptors[pc]. 7237 relative_target_port_identifier); 7238 pc++; 7239 } 7240 tpg_desc->target_port_count = pc; 7241 tpg_desc = (struct scsi_target_port_group_descriptor *) 7242 &tpg_desc->descriptors[pc]; 7243 } 7244 for (g = 0; g < num_ha_groups; g++) { 7245 tpg_desc->pref_state = (g == pg) ? ts : os; 7246 tpg_desc->support = TPG_AO_SUP | TPG_AN_SUP | TPG_S_SUP | 7247 TPG_U_SUP | TPG_T_SUP; 7248 scsi_ulto2b(2 + g, tpg_desc->target_port_group); 7249 tpg_desc->status = TPG_IMPLICIT; 7250 pc = 0; 7251 STAILQ_FOREACH(port, &softc->port_list, links) { 7252 if (port->targ_port < g * softc->port_cnt || 7253 port->targ_port >= (g + 1) * softc->port_cnt) 7254 continue; 7255 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 7256 continue; 7257 if (port->status & CTL_PORT_STATUS_HA_SHARED) 7258 continue; 7259 if (ctl_lun_map_to_port(port, lun->lun) >= CTL_MAX_LUNS) 7260 continue; 7261 scsi_ulto2b(port->targ_port, tpg_desc->descriptors[pc]. 7262 relative_target_port_identifier); 7263 pc++; 7264 } 7265 tpg_desc->target_port_count = pc; 7266 tpg_desc = (struct scsi_target_port_group_descriptor *) 7267 &tpg_desc->descriptors[pc]; 7268 } 7269 mtx_unlock(&softc->ctl_lock); 7270 7271 ctl_set_success(ctsio); 7272 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7273 ctsio->be_move_done = ctl_config_move_done; 7274 ctl_datamove((union ctl_io *)ctsio); 7275 return(retval); 7276} 7277 7278int 7279ctl_report_supported_opcodes(struct ctl_scsiio *ctsio) 7280{ 7281 struct ctl_lun *lun; 7282 struct scsi_report_supported_opcodes *cdb; 7283 const struct ctl_cmd_entry *entry, *sentry; 7284 struct scsi_report_supported_opcodes_all *all; 7285 struct scsi_report_supported_opcodes_descr *descr; 7286 struct scsi_report_supported_opcodes_one *one; 7287 int retval; 7288 int alloc_len, total_len; 7289 int opcode, service_action, i, j, num; 7290 7291 CTL_DEBUG_PRINT(("ctl_report_supported_opcodes\n")); 7292 7293 cdb = (struct scsi_report_supported_opcodes *)ctsio->cdb; 7294 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7295 7296 retval = CTL_RETVAL_COMPLETE; 7297 7298 opcode = cdb->requested_opcode; 7299 service_action = scsi_2btoul(cdb->requested_service_action); 7300 switch (cdb->options & RSO_OPTIONS_MASK) { 7301 case RSO_OPTIONS_ALL: 7302 num = 0; 7303 for (i = 0; i < 256; i++) { 7304 entry = &ctl_cmd_table[i]; 7305 if (entry->flags & CTL_CMD_FLAG_SA5) { 7306 for (j = 0; j < 32; j++) { 7307 sentry = &((const struct ctl_cmd_entry *) 7308 entry->execute)[j]; 7309 if (ctl_cmd_applicable( 7310 lun->be_lun->lun_type, sentry)) 7311 num++; 7312 } 7313 } else { 7314 if (ctl_cmd_applicable(lun->be_lun->lun_type, 7315 entry)) 7316 num++; 7317 } 7318 } 7319 total_len = sizeof(struct scsi_report_supported_opcodes_all) + 7320 num * sizeof(struct scsi_report_supported_opcodes_descr); 7321 break; 7322 case RSO_OPTIONS_OC: 7323 if (ctl_cmd_table[opcode].flags & CTL_CMD_FLAG_SA5) { 7324 ctl_set_invalid_field(/*ctsio*/ ctsio, 7325 /*sks_valid*/ 1, 7326 /*command*/ 1, 7327 /*field*/ 2, 7328 /*bit_valid*/ 1, 7329 /*bit*/ 2); 7330 ctl_done((union ctl_io *)ctsio); 7331 return (CTL_RETVAL_COMPLETE); 7332 } 7333 total_len = sizeof(struct scsi_report_supported_opcodes_one) + 32; 7334 break; 7335 case RSO_OPTIONS_OC_SA: 7336 if ((ctl_cmd_table[opcode].flags & CTL_CMD_FLAG_SA5) == 0 || 7337 service_action >= 32) { 7338 ctl_set_invalid_field(/*ctsio*/ ctsio, 7339 /*sks_valid*/ 1, 7340 /*command*/ 1, 7341 /*field*/ 2, 7342 /*bit_valid*/ 1, 7343 /*bit*/ 2); 7344 ctl_done((union ctl_io *)ctsio); 7345 return (CTL_RETVAL_COMPLETE); 7346 } 7347 total_len = sizeof(struct scsi_report_supported_opcodes_one) + 32; 7348 break; 7349 default: 7350 ctl_set_invalid_field(/*ctsio*/ ctsio, 7351 /*sks_valid*/ 1, 7352 /*command*/ 1, 7353 /*field*/ 2, 7354 /*bit_valid*/ 1, 7355 /*bit*/ 2); 7356 ctl_done((union ctl_io *)ctsio); 7357 return (CTL_RETVAL_COMPLETE); 7358 } 7359 7360 alloc_len = scsi_4btoul(cdb->length); 7361 7362 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7363 7364 ctsio->kern_sg_entries = 0; 7365 7366 if (total_len < alloc_len) { 7367 ctsio->residual = alloc_len - total_len; 7368 ctsio->kern_data_len = total_len; 7369 ctsio->kern_total_len = total_len; 7370 } else { 7371 ctsio->residual = 0; 7372 ctsio->kern_data_len = alloc_len; 7373 ctsio->kern_total_len = alloc_len; 7374 } 7375 ctsio->kern_data_resid = 0; 7376 ctsio->kern_rel_offset = 0; 7377 7378 switch (cdb->options & RSO_OPTIONS_MASK) { 7379 case RSO_OPTIONS_ALL: 7380 all = (struct scsi_report_supported_opcodes_all *) 7381 ctsio->kern_data_ptr; 7382 num = 0; 7383 for (i = 0; i < 256; i++) { 7384 entry = &ctl_cmd_table[i]; 7385 if (entry->flags & CTL_CMD_FLAG_SA5) { 7386 for (j = 0; j < 32; j++) { 7387 sentry = &((const struct ctl_cmd_entry *) 7388 entry->execute)[j]; 7389 if (!ctl_cmd_applicable( 7390 lun->be_lun->lun_type, sentry)) 7391 continue; 7392 descr = &all->descr[num++]; 7393 descr->opcode = i; 7394 scsi_ulto2b(j, descr->service_action); 7395 descr->flags = RSO_SERVACTV; 7396 scsi_ulto2b(sentry->length, 7397 descr->cdb_length); 7398 } 7399 } else { 7400 if (!ctl_cmd_applicable(lun->be_lun->lun_type, 7401 entry)) 7402 continue; 7403 descr = &all->descr[num++]; 7404 descr->opcode = i; 7405 scsi_ulto2b(0, descr->service_action); 7406 descr->flags = 0; 7407 scsi_ulto2b(entry->length, descr->cdb_length); 7408 } 7409 } 7410 scsi_ulto4b( 7411 num * sizeof(struct scsi_report_supported_opcodes_descr), 7412 all->length); 7413 break; 7414 case RSO_OPTIONS_OC: 7415 one = (struct scsi_report_supported_opcodes_one *) 7416 ctsio->kern_data_ptr; 7417 entry = &ctl_cmd_table[opcode]; 7418 goto fill_one; 7419 case RSO_OPTIONS_OC_SA: 7420 one = (struct scsi_report_supported_opcodes_one *) 7421 ctsio->kern_data_ptr; 7422 entry = &ctl_cmd_table[opcode]; 7423 entry = &((const struct ctl_cmd_entry *) 7424 entry->execute)[service_action]; 7425fill_one: 7426 if (ctl_cmd_applicable(lun->be_lun->lun_type, entry)) { 7427 one->support = 3; 7428 scsi_ulto2b(entry->length, one->cdb_length); 7429 one->cdb_usage[0] = opcode; 7430 memcpy(&one->cdb_usage[1], entry->usage, 7431 entry->length - 1); 7432 } else 7433 one->support = 1; 7434 break; 7435 } 7436 7437 ctl_set_success(ctsio); 7438 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7439 ctsio->be_move_done = ctl_config_move_done; 7440 ctl_datamove((union ctl_io *)ctsio); 7441 return(retval); 7442} 7443 7444int 7445ctl_report_supported_tmf(struct ctl_scsiio *ctsio) 7446{ 7447 struct scsi_report_supported_tmf *cdb; 7448 struct scsi_report_supported_tmf_data *data; 7449 int retval; 7450 int alloc_len, total_len; 7451 7452 CTL_DEBUG_PRINT(("ctl_report_supported_tmf\n")); 7453 7454 cdb = (struct scsi_report_supported_tmf *)ctsio->cdb; 7455 7456 retval = CTL_RETVAL_COMPLETE; 7457 7458 total_len = sizeof(struct scsi_report_supported_tmf_data); 7459 alloc_len = scsi_4btoul(cdb->length); 7460 7461 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7462 7463 ctsio->kern_sg_entries = 0; 7464 7465 if (total_len < alloc_len) { 7466 ctsio->residual = alloc_len - total_len; 7467 ctsio->kern_data_len = total_len; 7468 ctsio->kern_total_len = total_len; 7469 } else { 7470 ctsio->residual = 0; 7471 ctsio->kern_data_len = alloc_len; 7472 ctsio->kern_total_len = alloc_len; 7473 } 7474 ctsio->kern_data_resid = 0; 7475 ctsio->kern_rel_offset = 0; 7476 7477 data = (struct scsi_report_supported_tmf_data *)ctsio->kern_data_ptr; 7478 data->byte1 |= RST_ATS | RST_ATSS | RST_CTSS | RST_LURS | RST_QTS | 7479 RST_TRS; 7480 data->byte2 |= RST_QAES | RST_QTSS | RST_ITNRS; 7481 7482 ctl_set_success(ctsio); 7483 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7484 ctsio->be_move_done = ctl_config_move_done; 7485 ctl_datamove((union ctl_io *)ctsio); 7486 return (retval); 7487} 7488 7489int 7490ctl_report_timestamp(struct ctl_scsiio *ctsio) 7491{ 7492 struct scsi_report_timestamp *cdb; 7493 struct scsi_report_timestamp_data *data; 7494 struct timeval tv; 7495 int64_t timestamp; 7496 int retval; 7497 int alloc_len, total_len; 7498 7499 CTL_DEBUG_PRINT(("ctl_report_timestamp\n")); 7500 7501 cdb = (struct scsi_report_timestamp *)ctsio->cdb; 7502 7503 retval = CTL_RETVAL_COMPLETE; 7504 7505 total_len = sizeof(struct scsi_report_timestamp_data); 7506 alloc_len = scsi_4btoul(cdb->length); 7507 7508 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7509 7510 ctsio->kern_sg_entries = 0; 7511 7512 if (total_len < alloc_len) { 7513 ctsio->residual = alloc_len - total_len; 7514 ctsio->kern_data_len = total_len; 7515 ctsio->kern_total_len = total_len; 7516 } else { 7517 ctsio->residual = 0; 7518 ctsio->kern_data_len = alloc_len; 7519 ctsio->kern_total_len = alloc_len; 7520 } 7521 ctsio->kern_data_resid = 0; 7522 ctsio->kern_rel_offset = 0; 7523 7524 data = (struct scsi_report_timestamp_data *)ctsio->kern_data_ptr; 7525 scsi_ulto2b(sizeof(*data) - 2, data->length); 7526 data->origin = RTS_ORIG_OUTSIDE; 7527 getmicrotime(&tv); 7528 timestamp = (int64_t)tv.tv_sec * 1000 + tv.tv_usec / 1000; 7529 scsi_ulto4b(timestamp >> 16, data->timestamp); 7530 scsi_ulto2b(timestamp & 0xffff, &data->timestamp[4]); 7531 7532 ctl_set_success(ctsio); 7533 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7534 ctsio->be_move_done = ctl_config_move_done; 7535 ctl_datamove((union ctl_io *)ctsio); 7536 return (retval); 7537} 7538 7539int 7540ctl_persistent_reserve_in(struct ctl_scsiio *ctsio) 7541{ 7542 struct scsi_per_res_in *cdb; 7543 int alloc_len, total_len = 0; 7544 /* struct scsi_per_res_in_rsrv in_data; */ 7545 struct ctl_lun *lun; 7546 struct ctl_softc *softc; 7547 uint64_t key; 7548 7549 CTL_DEBUG_PRINT(("ctl_persistent_reserve_in\n")); 7550 7551 cdb = (struct scsi_per_res_in *)ctsio->cdb; 7552 7553 alloc_len = scsi_2btoul(cdb->length); 7554 7555 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7556 softc = lun->ctl_softc; 7557 7558retry: 7559 mtx_lock(&lun->lun_lock); 7560 switch (cdb->action) { 7561 case SPRI_RK: /* read keys */ 7562 total_len = sizeof(struct scsi_per_res_in_keys) + 7563 lun->pr_key_count * 7564 sizeof(struct scsi_per_res_key); 7565 break; 7566 case SPRI_RR: /* read reservation */ 7567 if (lun->flags & CTL_LUN_PR_RESERVED) 7568 total_len = sizeof(struct scsi_per_res_in_rsrv); 7569 else 7570 total_len = sizeof(struct scsi_per_res_in_header); 7571 break; 7572 case SPRI_RC: /* report capabilities */ 7573 total_len = sizeof(struct scsi_per_res_cap); 7574 break; 7575 case SPRI_RS: /* read full status */ 7576 total_len = sizeof(struct scsi_per_res_in_header) + 7577 (sizeof(struct scsi_per_res_in_full_desc) + 256) * 7578 lun->pr_key_count; 7579 break; 7580 default: 7581 panic("%s: Invalid PR type %#x", __func__, cdb->action); 7582 } 7583 mtx_unlock(&lun->lun_lock); 7584 7585 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7586 7587 if (total_len < alloc_len) { 7588 ctsio->residual = alloc_len - total_len; 7589 ctsio->kern_data_len = total_len; 7590 ctsio->kern_total_len = total_len; 7591 } else { 7592 ctsio->residual = 0; 7593 ctsio->kern_data_len = alloc_len; 7594 ctsio->kern_total_len = alloc_len; 7595 } 7596 7597 ctsio->kern_data_resid = 0; 7598 ctsio->kern_rel_offset = 0; 7599 ctsio->kern_sg_entries = 0; 7600 7601 mtx_lock(&lun->lun_lock); 7602 switch (cdb->action) { 7603 case SPRI_RK: { // read keys 7604 struct scsi_per_res_in_keys *res_keys; 7605 int i, key_count; 7606 7607 res_keys = (struct scsi_per_res_in_keys*)ctsio->kern_data_ptr; 7608 7609 /* 7610 * We had to drop the lock to allocate our buffer, which 7611 * leaves time for someone to come in with another 7612 * persistent reservation. (That is unlikely, though, 7613 * since this should be the only persistent reservation 7614 * command active right now.) 7615 */ 7616 if (total_len != (sizeof(struct scsi_per_res_in_keys) + 7617 (lun->pr_key_count * 7618 sizeof(struct scsi_per_res_key)))){ 7619 mtx_unlock(&lun->lun_lock); 7620 free(ctsio->kern_data_ptr, M_CTL); 7621 printf("%s: reservation length changed, retrying\n", 7622 __func__); 7623 goto retry; 7624 } 7625 7626 scsi_ulto4b(lun->pr_generation, res_keys->header.generation); 7627 7628 scsi_ulto4b(sizeof(struct scsi_per_res_key) * 7629 lun->pr_key_count, res_keys->header.length); 7630 7631 for (i = 0, key_count = 0; i < CTL_MAX_INITIATORS; i++) { 7632 if ((key = ctl_get_prkey(lun, i)) == 0) 7633 continue; 7634 7635 /* 7636 * We used lun->pr_key_count to calculate the 7637 * size to allocate. If it turns out the number of 7638 * initiators with the registered flag set is 7639 * larger than that (i.e. they haven't been kept in 7640 * sync), we've got a problem. 7641 */ 7642 if (key_count >= lun->pr_key_count) { 7643 key_count++; 7644 continue; 7645 } 7646 scsi_u64to8b(key, res_keys->keys[key_count].key); 7647 key_count++; 7648 } 7649 break; 7650 } 7651 case SPRI_RR: { // read reservation 7652 struct scsi_per_res_in_rsrv *res; 7653 int tmp_len, header_only; 7654 7655 res = (struct scsi_per_res_in_rsrv *)ctsio->kern_data_ptr; 7656 7657 scsi_ulto4b(lun->pr_generation, res->header.generation); 7658 7659 if (lun->flags & CTL_LUN_PR_RESERVED) 7660 { 7661 tmp_len = sizeof(struct scsi_per_res_in_rsrv); 7662 scsi_ulto4b(sizeof(struct scsi_per_res_in_rsrv_data), 7663 res->header.length); 7664 header_only = 0; 7665 } else { 7666 tmp_len = sizeof(struct scsi_per_res_in_header); 7667 scsi_ulto4b(0, res->header.length); 7668 header_only = 1; 7669 } 7670 7671 /* 7672 * We had to drop the lock to allocate our buffer, which 7673 * leaves time for someone to come in with another 7674 * persistent reservation. (That is unlikely, though, 7675 * since this should be the only persistent reservation 7676 * command active right now.) 7677 */ 7678 if (tmp_len != total_len) { 7679 mtx_unlock(&lun->lun_lock); 7680 free(ctsio->kern_data_ptr, M_CTL); 7681 printf("%s: reservation status changed, retrying\n", 7682 __func__); 7683 goto retry; 7684 } 7685 7686 /* 7687 * No reservation held, so we're done. 7688 */ 7689 if (header_only != 0) 7690 break; 7691 7692 /* 7693 * If the registration is an All Registrants type, the key 7694 * is 0, since it doesn't really matter. 7695 */ 7696 if (lun->pr_res_idx != CTL_PR_ALL_REGISTRANTS) { 7697 scsi_u64to8b(ctl_get_prkey(lun, lun->pr_res_idx), 7698 res->data.reservation); 7699 } 7700 res->data.scopetype = lun->pr_res_type; 7701 break; 7702 } 7703 case SPRI_RC: //report capabilities 7704 { 7705 struct scsi_per_res_cap *res_cap; 7706 uint16_t type_mask; 7707 7708 res_cap = (struct scsi_per_res_cap *)ctsio->kern_data_ptr; 7709 scsi_ulto2b(sizeof(*res_cap), res_cap->length); 7710 res_cap->flags1 = SPRI_CRH; 7711 res_cap->flags2 = SPRI_TMV | SPRI_ALLOW_5; 7712 type_mask = SPRI_TM_WR_EX_AR | 7713 SPRI_TM_EX_AC_RO | 7714 SPRI_TM_WR_EX_RO | 7715 SPRI_TM_EX_AC | 7716 SPRI_TM_WR_EX | 7717 SPRI_TM_EX_AC_AR; 7718 scsi_ulto2b(type_mask, res_cap->type_mask); 7719 break; 7720 } 7721 case SPRI_RS: { // read full status 7722 struct scsi_per_res_in_full *res_status; 7723 struct scsi_per_res_in_full_desc *res_desc; 7724 struct ctl_port *port; 7725 int i, len; 7726 7727 res_status = (struct scsi_per_res_in_full*)ctsio->kern_data_ptr; 7728 7729 /* 7730 * We had to drop the lock to allocate our buffer, which 7731 * leaves time for someone to come in with another 7732 * persistent reservation. (That is unlikely, though, 7733 * since this should be the only persistent reservation 7734 * command active right now.) 7735 */ 7736 if (total_len < (sizeof(struct scsi_per_res_in_header) + 7737 (sizeof(struct scsi_per_res_in_full_desc) + 256) * 7738 lun->pr_key_count)){ 7739 mtx_unlock(&lun->lun_lock); 7740 free(ctsio->kern_data_ptr, M_CTL); 7741 printf("%s: reservation length changed, retrying\n", 7742 __func__); 7743 goto retry; 7744 } 7745 7746 scsi_ulto4b(lun->pr_generation, res_status->header.generation); 7747 7748 res_desc = &res_status->desc[0]; 7749 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 7750 if ((key = ctl_get_prkey(lun, i)) == 0) 7751 continue; 7752 7753 scsi_u64to8b(key, res_desc->res_key.key); 7754 if ((lun->flags & CTL_LUN_PR_RESERVED) && 7755 (lun->pr_res_idx == i || 7756 lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS)) { 7757 res_desc->flags = SPRI_FULL_R_HOLDER; 7758 res_desc->scopetype = lun->pr_res_type; 7759 } 7760 scsi_ulto2b(i / CTL_MAX_INIT_PER_PORT, 7761 res_desc->rel_trgt_port_id); 7762 len = 0; 7763 port = softc->ctl_ports[i / CTL_MAX_INIT_PER_PORT]; 7764 if (port != NULL) 7765 len = ctl_create_iid(port, 7766 i % CTL_MAX_INIT_PER_PORT, 7767 res_desc->transport_id); 7768 scsi_ulto4b(len, res_desc->additional_length); 7769 res_desc = (struct scsi_per_res_in_full_desc *) 7770 &res_desc->transport_id[len]; 7771 } 7772 scsi_ulto4b((uint8_t *)res_desc - (uint8_t *)&res_status->desc[0], 7773 res_status->header.length); 7774 break; 7775 } 7776 default: 7777 panic("%s: Invalid PR type %#x", __func__, cdb->action); 7778 } 7779 mtx_unlock(&lun->lun_lock); 7780 7781 ctl_set_success(ctsio); 7782 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7783 ctsio->be_move_done = ctl_config_move_done; 7784 ctl_datamove((union ctl_io *)ctsio); 7785 return (CTL_RETVAL_COMPLETE); 7786} 7787 7788/* 7789 * Returns 0 if ctl_persistent_reserve_out() should continue, non-zero if 7790 * it should return. 7791 */ 7792static int 7793ctl_pro_preempt(struct ctl_softc *softc, struct ctl_lun *lun, uint64_t res_key, 7794 uint64_t sa_res_key, uint8_t type, uint32_t residx, 7795 struct ctl_scsiio *ctsio, struct scsi_per_res_out *cdb, 7796 struct scsi_per_res_out_parms* param) 7797{ 7798 union ctl_ha_msg persis_io; 7799 int i; 7800 7801 mtx_lock(&lun->lun_lock); 7802 if (sa_res_key == 0) { 7803 if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS) { 7804 /* validate scope and type */ 7805 if ((cdb->scope_type & SPR_SCOPE_MASK) != 7806 SPR_LU_SCOPE) { 7807 mtx_unlock(&lun->lun_lock); 7808 ctl_set_invalid_field(/*ctsio*/ ctsio, 7809 /*sks_valid*/ 1, 7810 /*command*/ 1, 7811 /*field*/ 2, 7812 /*bit_valid*/ 1, 7813 /*bit*/ 4); 7814 ctl_done((union ctl_io *)ctsio); 7815 return (1); 7816 } 7817 7818 if (type>8 || type==2 || type==4 || type==0) { 7819 mtx_unlock(&lun->lun_lock); 7820 ctl_set_invalid_field(/*ctsio*/ ctsio, 7821 /*sks_valid*/ 1, 7822 /*command*/ 1, 7823 /*field*/ 2, 7824 /*bit_valid*/ 1, 7825 /*bit*/ 0); 7826 ctl_done((union ctl_io *)ctsio); 7827 return (1); 7828 } 7829 7830 /* 7831 * Unregister everybody else and build UA for 7832 * them 7833 */ 7834 for(i = 0; i < CTL_MAX_INITIATORS; i++) { 7835 if (i == residx || ctl_get_prkey(lun, i) == 0) 7836 continue; 7837 7838 ctl_clr_prkey(lun, i); 7839 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 7840 } 7841 lun->pr_key_count = 1; 7842 lun->pr_res_type = type; 7843 if (lun->pr_res_type != SPR_TYPE_WR_EX_AR && 7844 lun->pr_res_type != SPR_TYPE_EX_AC_AR) 7845 lun->pr_res_idx = residx; 7846 lun->pr_generation++; 7847 mtx_unlock(&lun->lun_lock); 7848 7849 /* send msg to other side */ 7850 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 7851 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 7852 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 7853 persis_io.pr.pr_info.residx = lun->pr_res_idx; 7854 persis_io.pr.pr_info.res_type = type; 7855 memcpy(persis_io.pr.pr_info.sa_res_key, 7856 param->serv_act_res_key, 7857 sizeof(param->serv_act_res_key)); 7858 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 7859 sizeof(persis_io.pr), M_WAITOK); 7860 } else { 7861 /* not all registrants */ 7862 mtx_unlock(&lun->lun_lock); 7863 free(ctsio->kern_data_ptr, M_CTL); 7864 ctl_set_invalid_field(ctsio, 7865 /*sks_valid*/ 1, 7866 /*command*/ 0, 7867 /*field*/ 8, 7868 /*bit_valid*/ 0, 7869 /*bit*/ 0); 7870 ctl_done((union ctl_io *)ctsio); 7871 return (1); 7872 } 7873 } else if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS 7874 || !(lun->flags & CTL_LUN_PR_RESERVED)) { 7875 int found = 0; 7876 7877 if (res_key == sa_res_key) { 7878 /* special case */ 7879 /* 7880 * The spec implies this is not good but doesn't 7881 * say what to do. There are two choices either 7882 * generate a res conflict or check condition 7883 * with illegal field in parameter data. Since 7884 * that is what is done when the sa_res_key is 7885 * zero I'll take that approach since this has 7886 * to do with the sa_res_key. 7887 */ 7888 mtx_unlock(&lun->lun_lock); 7889 free(ctsio->kern_data_ptr, M_CTL); 7890 ctl_set_invalid_field(ctsio, 7891 /*sks_valid*/ 1, 7892 /*command*/ 0, 7893 /*field*/ 8, 7894 /*bit_valid*/ 0, 7895 /*bit*/ 0); 7896 ctl_done((union ctl_io *)ctsio); 7897 return (1); 7898 } 7899 7900 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 7901 if (ctl_get_prkey(lun, i) != sa_res_key) 7902 continue; 7903 7904 found = 1; 7905 ctl_clr_prkey(lun, i); 7906 lun->pr_key_count--; 7907 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 7908 } 7909 if (!found) { 7910 mtx_unlock(&lun->lun_lock); 7911 free(ctsio->kern_data_ptr, M_CTL); 7912 ctl_set_reservation_conflict(ctsio); 7913 ctl_done((union ctl_io *)ctsio); 7914 return (CTL_RETVAL_COMPLETE); 7915 } 7916 lun->pr_generation++; 7917 mtx_unlock(&lun->lun_lock); 7918 7919 /* send msg to other side */ 7920 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 7921 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 7922 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 7923 persis_io.pr.pr_info.residx = lun->pr_res_idx; 7924 persis_io.pr.pr_info.res_type = type; 7925 memcpy(persis_io.pr.pr_info.sa_res_key, 7926 param->serv_act_res_key, 7927 sizeof(param->serv_act_res_key)); 7928 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 7929 sizeof(persis_io.pr), M_WAITOK); 7930 } else { 7931 /* Reserved but not all registrants */ 7932 /* sa_res_key is res holder */ 7933 if (sa_res_key == ctl_get_prkey(lun, lun->pr_res_idx)) { 7934 /* validate scope and type */ 7935 if ((cdb->scope_type & SPR_SCOPE_MASK) != 7936 SPR_LU_SCOPE) { 7937 mtx_unlock(&lun->lun_lock); 7938 ctl_set_invalid_field(/*ctsio*/ ctsio, 7939 /*sks_valid*/ 1, 7940 /*command*/ 1, 7941 /*field*/ 2, 7942 /*bit_valid*/ 1, 7943 /*bit*/ 4); 7944 ctl_done((union ctl_io *)ctsio); 7945 return (1); 7946 } 7947 7948 if (type>8 || type==2 || type==4 || type==0) { 7949 mtx_unlock(&lun->lun_lock); 7950 ctl_set_invalid_field(/*ctsio*/ ctsio, 7951 /*sks_valid*/ 1, 7952 /*command*/ 1, 7953 /*field*/ 2, 7954 /*bit_valid*/ 1, 7955 /*bit*/ 0); 7956 ctl_done((union ctl_io *)ctsio); 7957 return (1); 7958 } 7959 7960 /* 7961 * Do the following: 7962 * if sa_res_key != res_key remove all 7963 * registrants w/sa_res_key and generate UA 7964 * for these registrants(Registrations 7965 * Preempted) if it wasn't an exclusive 7966 * reservation generate UA(Reservations 7967 * Preempted) for all other registered nexuses 7968 * if the type has changed. Establish the new 7969 * reservation and holder. If res_key and 7970 * sa_res_key are the same do the above 7971 * except don't unregister the res holder. 7972 */ 7973 7974 for(i = 0; i < CTL_MAX_INITIATORS; i++) { 7975 if (i == residx || ctl_get_prkey(lun, i) == 0) 7976 continue; 7977 7978 if (sa_res_key == ctl_get_prkey(lun, i)) { 7979 ctl_clr_prkey(lun, i); 7980 lun->pr_key_count--; 7981 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 7982 } else if (type != lun->pr_res_type && 7983 (lun->pr_res_type == SPR_TYPE_WR_EX_RO || 7984 lun->pr_res_type == SPR_TYPE_EX_AC_RO)) { 7985 ctl_est_ua(lun, i, CTL_UA_RES_RELEASE); 7986 } 7987 } 7988 lun->pr_res_type = type; 7989 if (lun->pr_res_type != SPR_TYPE_WR_EX_AR && 7990 lun->pr_res_type != SPR_TYPE_EX_AC_AR) 7991 lun->pr_res_idx = residx; 7992 else 7993 lun->pr_res_idx = CTL_PR_ALL_REGISTRANTS; 7994 lun->pr_generation++; 7995 mtx_unlock(&lun->lun_lock); 7996 7997 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 7998 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 7999 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 8000 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8001 persis_io.pr.pr_info.res_type = type; 8002 memcpy(persis_io.pr.pr_info.sa_res_key, 8003 param->serv_act_res_key, 8004 sizeof(param->serv_act_res_key)); 8005 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8006 sizeof(persis_io.pr), M_WAITOK); 8007 } else { 8008 /* 8009 * sa_res_key is not the res holder just 8010 * remove registrants 8011 */ 8012 int found=0; 8013 8014 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 8015 if (sa_res_key != ctl_get_prkey(lun, i)) 8016 continue; 8017 8018 found = 1; 8019 ctl_clr_prkey(lun, i); 8020 lun->pr_key_count--; 8021 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 8022 } 8023 8024 if (!found) { 8025 mtx_unlock(&lun->lun_lock); 8026 free(ctsio->kern_data_ptr, M_CTL); 8027 ctl_set_reservation_conflict(ctsio); 8028 ctl_done((union ctl_io *)ctsio); 8029 return (1); 8030 } 8031 lun->pr_generation++; 8032 mtx_unlock(&lun->lun_lock); 8033 8034 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8035 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8036 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 8037 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8038 persis_io.pr.pr_info.res_type = type; 8039 memcpy(persis_io.pr.pr_info.sa_res_key, 8040 param->serv_act_res_key, 8041 sizeof(param->serv_act_res_key)); 8042 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8043 sizeof(persis_io.pr), M_WAITOK); 8044 } 8045 } 8046 return (0); 8047} 8048 8049static void 8050ctl_pro_preempt_other(struct ctl_lun *lun, union ctl_ha_msg *msg) 8051{ 8052 uint64_t sa_res_key; 8053 int i; 8054 8055 sa_res_key = scsi_8btou64(msg->pr.pr_info.sa_res_key); 8056 8057 if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS 8058 || lun->pr_res_idx == CTL_PR_NO_RESERVATION 8059 || sa_res_key != ctl_get_prkey(lun, lun->pr_res_idx)) { 8060 if (sa_res_key == 0) { 8061 /* 8062 * Unregister everybody else and build UA for 8063 * them 8064 */ 8065 for(i = 0; i < CTL_MAX_INITIATORS; i++) { 8066 if (i == msg->pr.pr_info.residx || 8067 ctl_get_prkey(lun, i) == 0) 8068 continue; 8069 8070 ctl_clr_prkey(lun, i); 8071 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 8072 } 8073 8074 lun->pr_key_count = 1; 8075 lun->pr_res_type = msg->pr.pr_info.res_type; 8076 if (lun->pr_res_type != SPR_TYPE_WR_EX_AR && 8077 lun->pr_res_type != SPR_TYPE_EX_AC_AR) 8078 lun->pr_res_idx = msg->pr.pr_info.residx; 8079 } else { 8080 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 8081 if (sa_res_key == ctl_get_prkey(lun, i)) 8082 continue; 8083 8084 ctl_clr_prkey(lun, i); 8085 lun->pr_key_count--; 8086 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 8087 } 8088 } 8089 } else { 8090 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 8091 if (i == msg->pr.pr_info.residx || 8092 ctl_get_prkey(lun, i) == 0) 8093 continue; 8094 8095 if (sa_res_key == ctl_get_prkey(lun, i)) { 8096 ctl_clr_prkey(lun, i); 8097 lun->pr_key_count--; 8098 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 8099 } else if (msg->pr.pr_info.res_type != lun->pr_res_type 8100 && (lun->pr_res_type == SPR_TYPE_WR_EX_RO || 8101 lun->pr_res_type == SPR_TYPE_EX_AC_RO)) { 8102 ctl_est_ua(lun, i, CTL_UA_RES_RELEASE); 8103 } 8104 } 8105 lun->pr_res_type = msg->pr.pr_info.res_type; 8106 if (lun->pr_res_type != SPR_TYPE_WR_EX_AR && 8107 lun->pr_res_type != SPR_TYPE_EX_AC_AR) 8108 lun->pr_res_idx = msg->pr.pr_info.residx; 8109 else 8110 lun->pr_res_idx = CTL_PR_ALL_REGISTRANTS; 8111 } 8112 lun->pr_generation++; 8113 8114} 8115 8116 8117int 8118ctl_persistent_reserve_out(struct ctl_scsiio *ctsio) 8119{ 8120 int retval; 8121 u_int32_t param_len; 8122 struct scsi_per_res_out *cdb; 8123 struct ctl_lun *lun; 8124 struct scsi_per_res_out_parms* param; 8125 struct ctl_softc *softc; 8126 uint32_t residx; 8127 uint64_t res_key, sa_res_key, key; 8128 uint8_t type; 8129 union ctl_ha_msg persis_io; 8130 int i; 8131 8132 CTL_DEBUG_PRINT(("ctl_persistent_reserve_out\n")); 8133 8134 retval = CTL_RETVAL_COMPLETE; 8135 8136 cdb = (struct scsi_per_res_out *)ctsio->cdb; 8137 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 8138 softc = lun->ctl_softc; 8139 8140 /* 8141 * We only support whole-LUN scope. The scope & type are ignored for 8142 * register, register and ignore existing key and clear. 8143 * We sometimes ignore scope and type on preempts too!! 8144 * Verify reservation type here as well. 8145 */ 8146 type = cdb->scope_type & SPR_TYPE_MASK; 8147 if ((cdb->action == SPRO_RESERVE) 8148 || (cdb->action == SPRO_RELEASE)) { 8149 if ((cdb->scope_type & SPR_SCOPE_MASK) != SPR_LU_SCOPE) { 8150 ctl_set_invalid_field(/*ctsio*/ ctsio, 8151 /*sks_valid*/ 1, 8152 /*command*/ 1, 8153 /*field*/ 2, 8154 /*bit_valid*/ 1, 8155 /*bit*/ 4); 8156 ctl_done((union ctl_io *)ctsio); 8157 return (CTL_RETVAL_COMPLETE); 8158 } 8159 8160 if (type>8 || type==2 || type==4 || type==0) { 8161 ctl_set_invalid_field(/*ctsio*/ ctsio, 8162 /*sks_valid*/ 1, 8163 /*command*/ 1, 8164 /*field*/ 2, 8165 /*bit_valid*/ 1, 8166 /*bit*/ 0); 8167 ctl_done((union ctl_io *)ctsio); 8168 return (CTL_RETVAL_COMPLETE); 8169 } 8170 } 8171 8172 param_len = scsi_4btoul(cdb->length); 8173 8174 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 8175 ctsio->kern_data_ptr = malloc(param_len, M_CTL, M_WAITOK); 8176 ctsio->kern_data_len = param_len; 8177 ctsio->kern_total_len = param_len; 8178 ctsio->kern_data_resid = 0; 8179 ctsio->kern_rel_offset = 0; 8180 ctsio->kern_sg_entries = 0; 8181 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 8182 ctsio->be_move_done = ctl_config_move_done; 8183 ctl_datamove((union ctl_io *)ctsio); 8184 8185 return (CTL_RETVAL_COMPLETE); 8186 } 8187 8188 param = (struct scsi_per_res_out_parms *)ctsio->kern_data_ptr; 8189 8190 residx = ctl_get_initindex(&ctsio->io_hdr.nexus); 8191 res_key = scsi_8btou64(param->res_key.key); 8192 sa_res_key = scsi_8btou64(param->serv_act_res_key); 8193 8194 /* 8195 * Validate the reservation key here except for SPRO_REG_IGNO 8196 * This must be done for all other service actions 8197 */ 8198 if ((cdb->action & SPRO_ACTION_MASK) != SPRO_REG_IGNO) { 8199 mtx_lock(&lun->lun_lock); 8200 if ((key = ctl_get_prkey(lun, residx)) != 0) { 8201 if (res_key != key) { 8202 /* 8203 * The current key passed in doesn't match 8204 * the one the initiator previously 8205 * registered. 8206 */ 8207 mtx_unlock(&lun->lun_lock); 8208 free(ctsio->kern_data_ptr, M_CTL); 8209 ctl_set_reservation_conflict(ctsio); 8210 ctl_done((union ctl_io *)ctsio); 8211 return (CTL_RETVAL_COMPLETE); 8212 } 8213 } else if ((cdb->action & SPRO_ACTION_MASK) != SPRO_REGISTER) { 8214 /* 8215 * We are not 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 } else if (res_key != 0) { 8223 /* 8224 * We are not registered and trying to register but 8225 * the register key isn't zero. 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 } 8233 mtx_unlock(&lun->lun_lock); 8234 } 8235 8236 switch (cdb->action & SPRO_ACTION_MASK) { 8237 case SPRO_REGISTER: 8238 case SPRO_REG_IGNO: { 8239 8240#if 0 8241 printf("Registration received\n"); 8242#endif 8243 8244 /* 8245 * We don't support any of these options, as we report in 8246 * the read capabilities request (see 8247 * ctl_persistent_reserve_in(), above). 8248 */ 8249 if ((param->flags & SPR_SPEC_I_PT) 8250 || (param->flags & SPR_ALL_TG_PT) 8251 || (param->flags & SPR_APTPL)) { 8252 int bit_ptr; 8253 8254 if (param->flags & SPR_APTPL) 8255 bit_ptr = 0; 8256 else if (param->flags & SPR_ALL_TG_PT) 8257 bit_ptr = 2; 8258 else /* SPR_SPEC_I_PT */ 8259 bit_ptr = 3; 8260 8261 free(ctsio->kern_data_ptr, M_CTL); 8262 ctl_set_invalid_field(ctsio, 8263 /*sks_valid*/ 1, 8264 /*command*/ 0, 8265 /*field*/ 20, 8266 /*bit_valid*/ 1, 8267 /*bit*/ bit_ptr); 8268 ctl_done((union ctl_io *)ctsio); 8269 return (CTL_RETVAL_COMPLETE); 8270 } 8271 8272 mtx_lock(&lun->lun_lock); 8273 8274 /* 8275 * The initiator wants to clear the 8276 * key/unregister. 8277 */ 8278 if (sa_res_key == 0) { 8279 if ((res_key == 0 8280 && (cdb->action & SPRO_ACTION_MASK) == SPRO_REGISTER) 8281 || ((cdb->action & SPRO_ACTION_MASK) == SPRO_REG_IGNO 8282 && ctl_get_prkey(lun, residx) == 0)) { 8283 mtx_unlock(&lun->lun_lock); 8284 goto done; 8285 } 8286 8287 ctl_clr_prkey(lun, residx); 8288 lun->pr_key_count--; 8289 8290 if (residx == lun->pr_res_idx) { 8291 lun->flags &= ~CTL_LUN_PR_RESERVED; 8292 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8293 8294 if ((lun->pr_res_type == SPR_TYPE_WR_EX_RO || 8295 lun->pr_res_type == SPR_TYPE_EX_AC_RO) && 8296 lun->pr_key_count) { 8297 /* 8298 * If the reservation is a registrants 8299 * only type we need to generate a UA 8300 * for other registered inits. The 8301 * sense code should be RESERVATIONS 8302 * RELEASED 8303 */ 8304 8305 for (i = softc->init_min; i < softc->init_max; i++){ 8306 if (ctl_get_prkey(lun, i) == 0) 8307 continue; 8308 ctl_est_ua(lun, i, 8309 CTL_UA_RES_RELEASE); 8310 } 8311 } 8312 lun->pr_res_type = 0; 8313 } else if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS) { 8314 if (lun->pr_key_count==0) { 8315 lun->flags &= ~CTL_LUN_PR_RESERVED; 8316 lun->pr_res_type = 0; 8317 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8318 } 8319 } 8320 lun->pr_generation++; 8321 mtx_unlock(&lun->lun_lock); 8322 8323 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8324 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8325 persis_io.pr.pr_info.action = CTL_PR_UNREG_KEY; 8326 persis_io.pr.pr_info.residx = residx; 8327 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8328 sizeof(persis_io.pr), M_WAITOK); 8329 } else /* sa_res_key != 0 */ { 8330 8331 /* 8332 * If we aren't registered currently then increment 8333 * the key count and set the registered flag. 8334 */ 8335 ctl_alloc_prkey(lun, residx); 8336 if (ctl_get_prkey(lun, residx) == 0) 8337 lun->pr_key_count++; 8338 ctl_set_prkey(lun, residx, sa_res_key); 8339 lun->pr_generation++; 8340 mtx_unlock(&lun->lun_lock); 8341 8342 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8343 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8344 persis_io.pr.pr_info.action = CTL_PR_REG_KEY; 8345 persis_io.pr.pr_info.residx = residx; 8346 memcpy(persis_io.pr.pr_info.sa_res_key, 8347 param->serv_act_res_key, 8348 sizeof(param->serv_act_res_key)); 8349 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8350 sizeof(persis_io.pr), M_WAITOK); 8351 } 8352 8353 break; 8354 } 8355 case SPRO_RESERVE: 8356#if 0 8357 printf("Reserve executed type %d\n", type); 8358#endif 8359 mtx_lock(&lun->lun_lock); 8360 if (lun->flags & CTL_LUN_PR_RESERVED) { 8361 /* 8362 * if this isn't the reservation holder and it's 8363 * not a "all registrants" type or if the type is 8364 * different then we have a conflict 8365 */ 8366 if ((lun->pr_res_idx != residx 8367 && lun->pr_res_idx != CTL_PR_ALL_REGISTRANTS) 8368 || lun->pr_res_type != type) { 8369 mtx_unlock(&lun->lun_lock); 8370 free(ctsio->kern_data_ptr, M_CTL); 8371 ctl_set_reservation_conflict(ctsio); 8372 ctl_done((union ctl_io *)ctsio); 8373 return (CTL_RETVAL_COMPLETE); 8374 } 8375 mtx_unlock(&lun->lun_lock); 8376 } else /* create a reservation */ { 8377 /* 8378 * If it's not an "all registrants" type record 8379 * reservation holder 8380 */ 8381 if (type != SPR_TYPE_WR_EX_AR 8382 && type != SPR_TYPE_EX_AC_AR) 8383 lun->pr_res_idx = residx; /* Res holder */ 8384 else 8385 lun->pr_res_idx = CTL_PR_ALL_REGISTRANTS; 8386 8387 lun->flags |= CTL_LUN_PR_RESERVED; 8388 lun->pr_res_type = type; 8389 8390 mtx_unlock(&lun->lun_lock); 8391 8392 /* send msg to other side */ 8393 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8394 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8395 persis_io.pr.pr_info.action = CTL_PR_RESERVE; 8396 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8397 persis_io.pr.pr_info.res_type = type; 8398 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8399 sizeof(persis_io.pr), M_WAITOK); 8400 } 8401 break; 8402 8403 case SPRO_RELEASE: 8404 mtx_lock(&lun->lun_lock); 8405 if ((lun->flags & CTL_LUN_PR_RESERVED) == 0) { 8406 /* No reservation exists return good status */ 8407 mtx_unlock(&lun->lun_lock); 8408 goto done; 8409 } 8410 /* 8411 * Is this nexus a reservation holder? 8412 */ 8413 if (lun->pr_res_idx != residx 8414 && lun->pr_res_idx != CTL_PR_ALL_REGISTRANTS) { 8415 /* 8416 * not a res holder return good status but 8417 * do nothing 8418 */ 8419 mtx_unlock(&lun->lun_lock); 8420 goto done; 8421 } 8422 8423 if (lun->pr_res_type != type) { 8424 mtx_unlock(&lun->lun_lock); 8425 free(ctsio->kern_data_ptr, M_CTL); 8426 ctl_set_illegal_pr_release(ctsio); 8427 ctl_done((union ctl_io *)ctsio); 8428 return (CTL_RETVAL_COMPLETE); 8429 } 8430 8431 /* okay to release */ 8432 lun->flags &= ~CTL_LUN_PR_RESERVED; 8433 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8434 lun->pr_res_type = 0; 8435 8436 /* 8437 * If this isn't an exclusive access reservation and NUAR 8438 * is not set, generate UA for all other registrants. 8439 */ 8440 if (type != SPR_TYPE_EX_AC && type != SPR_TYPE_WR_EX && 8441 (lun->MODE_CTRL.queue_flags & SCP_NUAR) == 0) { 8442 for (i = softc->init_min; i < softc->init_max; i++) { 8443 if (i == residx || ctl_get_prkey(lun, i) == 0) 8444 continue; 8445 ctl_est_ua(lun, i, CTL_UA_RES_RELEASE); 8446 } 8447 } 8448 mtx_unlock(&lun->lun_lock); 8449 8450 /* Send msg to other side */ 8451 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8452 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8453 persis_io.pr.pr_info.action = CTL_PR_RELEASE; 8454 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8455 sizeof(persis_io.pr), M_WAITOK); 8456 break; 8457 8458 case SPRO_CLEAR: 8459 /* send msg to other side */ 8460 8461 mtx_lock(&lun->lun_lock); 8462 lun->flags &= ~CTL_LUN_PR_RESERVED; 8463 lun->pr_res_type = 0; 8464 lun->pr_key_count = 0; 8465 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8466 8467 ctl_clr_prkey(lun, residx); 8468 for (i = 0; i < CTL_MAX_INITIATORS; i++) 8469 if (ctl_get_prkey(lun, i) != 0) { 8470 ctl_clr_prkey(lun, i); 8471 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 8472 } 8473 lun->pr_generation++; 8474 mtx_unlock(&lun->lun_lock); 8475 8476 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8477 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8478 persis_io.pr.pr_info.action = CTL_PR_CLEAR; 8479 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8480 sizeof(persis_io.pr), M_WAITOK); 8481 break; 8482 8483 case SPRO_PREEMPT: 8484 case SPRO_PRE_ABO: { 8485 int nretval; 8486 8487 nretval = ctl_pro_preempt(softc, lun, res_key, sa_res_key, type, 8488 residx, ctsio, cdb, param); 8489 if (nretval != 0) 8490 return (CTL_RETVAL_COMPLETE); 8491 break; 8492 } 8493 default: 8494 panic("%s: Invalid PR type %#x", __func__, cdb->action); 8495 } 8496 8497done: 8498 free(ctsio->kern_data_ptr, M_CTL); 8499 ctl_set_success(ctsio); 8500 ctl_done((union ctl_io *)ctsio); 8501 8502 return (retval); 8503} 8504 8505/* 8506 * This routine is for handling a message from the other SC pertaining to 8507 * persistent reserve out. All the error checking will have been done 8508 * so only perorming the action need be done here to keep the two 8509 * in sync. 8510 */ 8511static void 8512ctl_hndl_per_res_out_on_other_sc(union ctl_ha_msg *msg) 8513{ 8514 struct ctl_softc *softc = control_softc; 8515 struct ctl_lun *lun; 8516 int i; 8517 uint32_t residx, targ_lun; 8518 8519 targ_lun = msg->hdr.nexus.targ_mapped_lun; 8520 mtx_lock(&softc->ctl_lock); 8521 if ((targ_lun >= CTL_MAX_LUNS) || 8522 ((lun = softc->ctl_luns[targ_lun]) == NULL)) { 8523 mtx_unlock(&softc->ctl_lock); 8524 return; 8525 } 8526 mtx_lock(&lun->lun_lock); 8527 mtx_unlock(&softc->ctl_lock); 8528 if (lun->flags & CTL_LUN_DISABLED) { 8529 mtx_unlock(&lun->lun_lock); 8530 return; 8531 } 8532 residx = ctl_get_initindex(&msg->hdr.nexus); 8533 switch(msg->pr.pr_info.action) { 8534 case CTL_PR_REG_KEY: 8535 ctl_alloc_prkey(lun, msg->pr.pr_info.residx); 8536 if (ctl_get_prkey(lun, msg->pr.pr_info.residx) == 0) 8537 lun->pr_key_count++; 8538 ctl_set_prkey(lun, msg->pr.pr_info.residx, 8539 scsi_8btou64(msg->pr.pr_info.sa_res_key)); 8540 lun->pr_generation++; 8541 break; 8542 8543 case CTL_PR_UNREG_KEY: 8544 ctl_clr_prkey(lun, msg->pr.pr_info.residx); 8545 lun->pr_key_count--; 8546 8547 /* XXX Need to see if the reservation has been released */ 8548 /* if so do we need to generate UA? */ 8549 if (msg->pr.pr_info.residx == lun->pr_res_idx) { 8550 lun->flags &= ~CTL_LUN_PR_RESERVED; 8551 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8552 8553 if ((lun->pr_res_type == SPR_TYPE_WR_EX_RO || 8554 lun->pr_res_type == SPR_TYPE_EX_AC_RO) && 8555 lun->pr_key_count) { 8556 /* 8557 * If the reservation is a registrants 8558 * only type we need to generate a UA 8559 * for other registered inits. The 8560 * sense code should be RESERVATIONS 8561 * RELEASED 8562 */ 8563 8564 for (i = softc->init_min; i < softc->init_max; i++) { 8565 if (ctl_get_prkey(lun, i) == 0) 8566 continue; 8567 8568 ctl_est_ua(lun, i, CTL_UA_RES_RELEASE); 8569 } 8570 } 8571 lun->pr_res_type = 0; 8572 } else if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS) { 8573 if (lun->pr_key_count==0) { 8574 lun->flags &= ~CTL_LUN_PR_RESERVED; 8575 lun->pr_res_type = 0; 8576 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8577 } 8578 } 8579 lun->pr_generation++; 8580 break; 8581 8582 case CTL_PR_RESERVE: 8583 lun->flags |= CTL_LUN_PR_RESERVED; 8584 lun->pr_res_type = msg->pr.pr_info.res_type; 8585 lun->pr_res_idx = msg->pr.pr_info.residx; 8586 8587 break; 8588 8589 case CTL_PR_RELEASE: 8590 /* 8591 * If this isn't an exclusive access reservation and NUAR 8592 * is not set, generate UA for all other registrants. 8593 */ 8594 if (lun->pr_res_type != SPR_TYPE_EX_AC && 8595 lun->pr_res_type != SPR_TYPE_WR_EX && 8596 (lun->MODE_CTRL.queue_flags & SCP_NUAR) == 0) { 8597 for (i = softc->init_min; i < softc->init_max; i++) 8598 if (i == residx || ctl_get_prkey(lun, i) == 0) 8599 continue; 8600 ctl_est_ua(lun, i, CTL_UA_RES_RELEASE); 8601 } 8602 8603 lun->flags &= ~CTL_LUN_PR_RESERVED; 8604 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8605 lun->pr_res_type = 0; 8606 break; 8607 8608 case CTL_PR_PREEMPT: 8609 ctl_pro_preempt_other(lun, msg); 8610 break; 8611 case CTL_PR_CLEAR: 8612 lun->flags &= ~CTL_LUN_PR_RESERVED; 8613 lun->pr_res_type = 0; 8614 lun->pr_key_count = 0; 8615 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8616 8617 for (i=0; i < CTL_MAX_INITIATORS; i++) { 8618 if (ctl_get_prkey(lun, i) == 0) 8619 continue; 8620 ctl_clr_prkey(lun, i); 8621 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 8622 } 8623 lun->pr_generation++; 8624 break; 8625 } 8626 8627 mtx_unlock(&lun->lun_lock); 8628} 8629 8630int 8631ctl_read_write(struct ctl_scsiio *ctsio) 8632{ 8633 struct ctl_lun *lun; 8634 struct ctl_lba_len_flags *lbalen; 8635 uint64_t lba; 8636 uint32_t num_blocks; 8637 int flags, retval; 8638 int isread; 8639 8640 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 8641 8642 CTL_DEBUG_PRINT(("ctl_read_write: command: %#x\n", ctsio->cdb[0])); 8643 8644 flags = 0; 8645 isread = ctsio->cdb[0] == READ_6 || ctsio->cdb[0] == READ_10 8646 || ctsio->cdb[0] == READ_12 || ctsio->cdb[0] == READ_16; 8647 switch (ctsio->cdb[0]) { 8648 case READ_6: 8649 case WRITE_6: { 8650 struct scsi_rw_6 *cdb; 8651 8652 cdb = (struct scsi_rw_6 *)ctsio->cdb; 8653 8654 lba = scsi_3btoul(cdb->addr); 8655 /* only 5 bits are valid in the most significant address byte */ 8656 lba &= 0x1fffff; 8657 num_blocks = cdb->length; 8658 /* 8659 * This is correct according to SBC-2. 8660 */ 8661 if (num_blocks == 0) 8662 num_blocks = 256; 8663 break; 8664 } 8665 case READ_10: 8666 case WRITE_10: { 8667 struct scsi_rw_10 *cdb; 8668 8669 cdb = (struct scsi_rw_10 *)ctsio->cdb; 8670 if (cdb->byte2 & SRW10_FUA) 8671 flags |= CTL_LLF_FUA; 8672 if (cdb->byte2 & SRW10_DPO) 8673 flags |= CTL_LLF_DPO; 8674 lba = scsi_4btoul(cdb->addr); 8675 num_blocks = scsi_2btoul(cdb->length); 8676 break; 8677 } 8678 case WRITE_VERIFY_10: { 8679 struct scsi_write_verify_10 *cdb; 8680 8681 cdb = (struct scsi_write_verify_10 *)ctsio->cdb; 8682 flags |= CTL_LLF_FUA; 8683 if (cdb->byte2 & SWV_DPO) 8684 flags |= CTL_LLF_DPO; 8685 lba = scsi_4btoul(cdb->addr); 8686 num_blocks = scsi_2btoul(cdb->length); 8687 break; 8688 } 8689 case READ_12: 8690 case WRITE_12: { 8691 struct scsi_rw_12 *cdb; 8692 8693 cdb = (struct scsi_rw_12 *)ctsio->cdb; 8694 if (cdb->byte2 & SRW12_FUA) 8695 flags |= CTL_LLF_FUA; 8696 if (cdb->byte2 & SRW12_DPO) 8697 flags |= CTL_LLF_DPO; 8698 lba = scsi_4btoul(cdb->addr); 8699 num_blocks = scsi_4btoul(cdb->length); 8700 break; 8701 } 8702 case WRITE_VERIFY_12: { 8703 struct scsi_write_verify_12 *cdb; 8704 8705 cdb = (struct scsi_write_verify_12 *)ctsio->cdb; 8706 flags |= CTL_LLF_FUA; 8707 if (cdb->byte2 & SWV_DPO) 8708 flags |= CTL_LLF_DPO; 8709 lba = scsi_4btoul(cdb->addr); 8710 num_blocks = scsi_4btoul(cdb->length); 8711 break; 8712 } 8713 case READ_16: 8714 case WRITE_16: { 8715 struct scsi_rw_16 *cdb; 8716 8717 cdb = (struct scsi_rw_16 *)ctsio->cdb; 8718 if (cdb->byte2 & SRW12_FUA) 8719 flags |= CTL_LLF_FUA; 8720 if (cdb->byte2 & SRW12_DPO) 8721 flags |= CTL_LLF_DPO; 8722 lba = scsi_8btou64(cdb->addr); 8723 num_blocks = scsi_4btoul(cdb->length); 8724 break; 8725 } 8726 case WRITE_ATOMIC_16: { 8727 struct scsi_write_atomic_16 *cdb; 8728 8729 if (lun->be_lun->atomicblock == 0) { 8730 ctl_set_invalid_opcode(ctsio); 8731 ctl_done((union ctl_io *)ctsio); 8732 return (CTL_RETVAL_COMPLETE); 8733 } 8734 8735 cdb = (struct scsi_write_atomic_16 *)ctsio->cdb; 8736 if (cdb->byte2 & SRW12_FUA) 8737 flags |= CTL_LLF_FUA; 8738 if (cdb->byte2 & SRW12_DPO) 8739 flags |= CTL_LLF_DPO; 8740 lba = scsi_8btou64(cdb->addr); 8741 num_blocks = scsi_2btoul(cdb->length); 8742 if (num_blocks > lun->be_lun->atomicblock) { 8743 ctl_set_invalid_field(ctsio, /*sks_valid*/ 1, 8744 /*command*/ 1, /*field*/ 12, /*bit_valid*/ 0, 8745 /*bit*/ 0); 8746 ctl_done((union ctl_io *)ctsio); 8747 return (CTL_RETVAL_COMPLETE); 8748 } 8749 break; 8750 } 8751 case WRITE_VERIFY_16: { 8752 struct scsi_write_verify_16 *cdb; 8753 8754 cdb = (struct scsi_write_verify_16 *)ctsio->cdb; 8755 flags |= CTL_LLF_FUA; 8756 if (cdb->byte2 & SWV_DPO) 8757 flags |= CTL_LLF_DPO; 8758 lba = scsi_8btou64(cdb->addr); 8759 num_blocks = scsi_4btoul(cdb->length); 8760 break; 8761 } 8762 default: 8763 /* 8764 * We got a command we don't support. This shouldn't 8765 * happen, commands should be filtered out above us. 8766 */ 8767 ctl_set_invalid_opcode(ctsio); 8768 ctl_done((union ctl_io *)ctsio); 8769 8770 return (CTL_RETVAL_COMPLETE); 8771 break; /* NOTREACHED */ 8772 } 8773 8774 /* 8775 * The first check is to make sure we're in bounds, the second 8776 * check is to catch wrap-around problems. If the lba + num blocks 8777 * is less than the lba, then we've wrapped around and the block 8778 * range is invalid anyway. 8779 */ 8780 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 8781 || ((lba + num_blocks) < lba)) { 8782 ctl_set_lba_out_of_range(ctsio, 8783 MAX(lba, lun->be_lun->maxlba + 1)); 8784 ctl_done((union ctl_io *)ctsio); 8785 return (CTL_RETVAL_COMPLETE); 8786 } 8787 8788 /* 8789 * According to SBC-3, a transfer length of 0 is not an error. 8790 * Note that this cannot happen with WRITE(6) or READ(6), since 0 8791 * translates to 256 blocks for those commands. 8792 */ 8793 if (num_blocks == 0) { 8794 ctl_set_success(ctsio); 8795 ctl_done((union ctl_io *)ctsio); 8796 return (CTL_RETVAL_COMPLETE); 8797 } 8798 8799 /* Set FUA and/or DPO if caches are disabled. */ 8800 if (isread) { 8801 if ((lun->MODE_CACHING.flags1 & SCP_RCD) != 0) 8802 flags |= CTL_LLF_FUA | CTL_LLF_DPO; 8803 } else { 8804 if ((lun->MODE_CACHING.flags1 & SCP_WCE) == 0) 8805 flags |= CTL_LLF_FUA; 8806 } 8807 8808 lbalen = (struct ctl_lba_len_flags *) 8809 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 8810 lbalen->lba = lba; 8811 lbalen->len = num_blocks; 8812 lbalen->flags = (isread ? CTL_LLF_READ : CTL_LLF_WRITE) | flags; 8813 8814 ctsio->kern_total_len = num_blocks * lun->be_lun->blocksize; 8815 ctsio->kern_rel_offset = 0; 8816 8817 CTL_DEBUG_PRINT(("ctl_read_write: calling data_submit()\n")); 8818 8819 retval = lun->backend->data_submit((union ctl_io *)ctsio); 8820 return (retval); 8821} 8822 8823static int 8824ctl_cnw_cont(union ctl_io *io) 8825{ 8826 struct ctl_scsiio *ctsio; 8827 struct ctl_lun *lun; 8828 struct ctl_lba_len_flags *lbalen; 8829 int retval; 8830 8831 ctsio = &io->scsiio; 8832 ctsio->io_hdr.status = CTL_STATUS_NONE; 8833 ctsio->io_hdr.flags &= ~CTL_FLAG_IO_CONT; 8834 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 8835 lbalen = (struct ctl_lba_len_flags *) 8836 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 8837 lbalen->flags &= ~CTL_LLF_COMPARE; 8838 lbalen->flags |= CTL_LLF_WRITE; 8839 8840 CTL_DEBUG_PRINT(("ctl_cnw_cont: calling data_submit()\n")); 8841 retval = lun->backend->data_submit((union ctl_io *)ctsio); 8842 return (retval); 8843} 8844 8845int 8846ctl_cnw(struct ctl_scsiio *ctsio) 8847{ 8848 struct ctl_lun *lun; 8849 struct ctl_lba_len_flags *lbalen; 8850 uint64_t lba; 8851 uint32_t num_blocks; 8852 int flags, retval; 8853 8854 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 8855 8856 CTL_DEBUG_PRINT(("ctl_cnw: command: %#x\n", ctsio->cdb[0])); 8857 8858 flags = 0; 8859 switch (ctsio->cdb[0]) { 8860 case COMPARE_AND_WRITE: { 8861 struct scsi_compare_and_write *cdb; 8862 8863 cdb = (struct scsi_compare_and_write *)ctsio->cdb; 8864 if (cdb->byte2 & SRW10_FUA) 8865 flags |= CTL_LLF_FUA; 8866 if (cdb->byte2 & SRW10_DPO) 8867 flags |= CTL_LLF_DPO; 8868 lba = scsi_8btou64(cdb->addr); 8869 num_blocks = cdb->length; 8870 break; 8871 } 8872 default: 8873 /* 8874 * We got a command we don't support. This shouldn't 8875 * happen, commands should be filtered out above us. 8876 */ 8877 ctl_set_invalid_opcode(ctsio); 8878 ctl_done((union ctl_io *)ctsio); 8879 8880 return (CTL_RETVAL_COMPLETE); 8881 break; /* NOTREACHED */ 8882 } 8883 8884 /* 8885 * The first check is to make sure we're in bounds, the second 8886 * check is to catch wrap-around problems. If the lba + num blocks 8887 * is less than the lba, then we've wrapped around and the block 8888 * range is invalid anyway. 8889 */ 8890 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 8891 || ((lba + num_blocks) < lba)) { 8892 ctl_set_lba_out_of_range(ctsio, 8893 MAX(lba, lun->be_lun->maxlba + 1)); 8894 ctl_done((union ctl_io *)ctsio); 8895 return (CTL_RETVAL_COMPLETE); 8896 } 8897 8898 /* 8899 * According to SBC-3, a transfer length of 0 is not an error. 8900 */ 8901 if (num_blocks == 0) { 8902 ctl_set_success(ctsio); 8903 ctl_done((union ctl_io *)ctsio); 8904 return (CTL_RETVAL_COMPLETE); 8905 } 8906 8907 /* Set FUA if write cache is disabled. */ 8908 if ((lun->MODE_CACHING.flags1 & SCP_WCE) == 0) 8909 flags |= CTL_LLF_FUA; 8910 8911 ctsio->kern_total_len = 2 * num_blocks * lun->be_lun->blocksize; 8912 ctsio->kern_rel_offset = 0; 8913 8914 /* 8915 * Set the IO_CONT flag, so that if this I/O gets passed to 8916 * ctl_data_submit_done(), it'll get passed back to 8917 * ctl_ctl_cnw_cont() for further processing. 8918 */ 8919 ctsio->io_hdr.flags |= CTL_FLAG_IO_CONT; 8920 ctsio->io_cont = ctl_cnw_cont; 8921 8922 lbalen = (struct ctl_lba_len_flags *) 8923 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 8924 lbalen->lba = lba; 8925 lbalen->len = num_blocks; 8926 lbalen->flags = CTL_LLF_COMPARE | flags; 8927 8928 CTL_DEBUG_PRINT(("ctl_cnw: calling data_submit()\n")); 8929 retval = lun->backend->data_submit((union ctl_io *)ctsio); 8930 return (retval); 8931} 8932 8933int 8934ctl_verify(struct ctl_scsiio *ctsio) 8935{ 8936 struct ctl_lun *lun; 8937 struct ctl_lba_len_flags *lbalen; 8938 uint64_t lba; 8939 uint32_t num_blocks; 8940 int bytchk, flags; 8941 int retval; 8942 8943 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 8944 8945 CTL_DEBUG_PRINT(("ctl_verify: command: %#x\n", ctsio->cdb[0])); 8946 8947 bytchk = 0; 8948 flags = CTL_LLF_FUA; 8949 switch (ctsio->cdb[0]) { 8950 case VERIFY_10: { 8951 struct scsi_verify_10 *cdb; 8952 8953 cdb = (struct scsi_verify_10 *)ctsio->cdb; 8954 if (cdb->byte2 & SVFY_BYTCHK) 8955 bytchk = 1; 8956 if (cdb->byte2 & SVFY_DPO) 8957 flags |= CTL_LLF_DPO; 8958 lba = scsi_4btoul(cdb->addr); 8959 num_blocks = scsi_2btoul(cdb->length); 8960 break; 8961 } 8962 case VERIFY_12: { 8963 struct scsi_verify_12 *cdb; 8964 8965 cdb = (struct scsi_verify_12 *)ctsio->cdb; 8966 if (cdb->byte2 & SVFY_BYTCHK) 8967 bytchk = 1; 8968 if (cdb->byte2 & SVFY_DPO) 8969 flags |= CTL_LLF_DPO; 8970 lba = scsi_4btoul(cdb->addr); 8971 num_blocks = scsi_4btoul(cdb->length); 8972 break; 8973 } 8974 case VERIFY_16: { 8975 struct scsi_rw_16 *cdb; 8976 8977 cdb = (struct scsi_rw_16 *)ctsio->cdb; 8978 if (cdb->byte2 & SVFY_BYTCHK) 8979 bytchk = 1; 8980 if (cdb->byte2 & SVFY_DPO) 8981 flags |= CTL_LLF_DPO; 8982 lba = scsi_8btou64(cdb->addr); 8983 num_blocks = scsi_4btoul(cdb->length); 8984 break; 8985 } 8986 default: 8987 /* 8988 * We got a command we don't support. This shouldn't 8989 * happen, commands should be filtered out above us. 8990 */ 8991 ctl_set_invalid_opcode(ctsio); 8992 ctl_done((union ctl_io *)ctsio); 8993 return (CTL_RETVAL_COMPLETE); 8994 } 8995 8996 /* 8997 * The first check is to make sure we're in bounds, the second 8998 * check is to catch wrap-around problems. If the lba + num blocks 8999 * is less than the lba, then we've wrapped around and the block 9000 * range is invalid anyway. 9001 */ 9002 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 9003 || ((lba + num_blocks) < lba)) { 9004 ctl_set_lba_out_of_range(ctsio, 9005 MAX(lba, lun->be_lun->maxlba + 1)); 9006 ctl_done((union ctl_io *)ctsio); 9007 return (CTL_RETVAL_COMPLETE); 9008 } 9009 9010 /* 9011 * According to SBC-3, a transfer length of 0 is not an error. 9012 */ 9013 if (num_blocks == 0) { 9014 ctl_set_success(ctsio); 9015 ctl_done((union ctl_io *)ctsio); 9016 return (CTL_RETVAL_COMPLETE); 9017 } 9018 9019 lbalen = (struct ctl_lba_len_flags *) 9020 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 9021 lbalen->lba = lba; 9022 lbalen->len = num_blocks; 9023 if (bytchk) { 9024 lbalen->flags = CTL_LLF_COMPARE | flags; 9025 ctsio->kern_total_len = num_blocks * lun->be_lun->blocksize; 9026 } else { 9027 lbalen->flags = CTL_LLF_VERIFY | flags; 9028 ctsio->kern_total_len = 0; 9029 } 9030 ctsio->kern_rel_offset = 0; 9031 9032 CTL_DEBUG_PRINT(("ctl_verify: calling data_submit()\n")); 9033 retval = lun->backend->data_submit((union ctl_io *)ctsio); 9034 return (retval); 9035} 9036 9037int 9038ctl_report_luns(struct ctl_scsiio *ctsio) 9039{ 9040 struct ctl_softc *softc; 9041 struct scsi_report_luns *cdb; 9042 struct scsi_report_luns_data *lun_data; 9043 struct ctl_lun *lun, *request_lun; 9044 struct ctl_port *port; 9045 int num_luns, retval; 9046 uint32_t alloc_len, lun_datalen; 9047 int num_filled; 9048 uint32_t initidx, targ_lun_id, lun_id; 9049 9050 retval = CTL_RETVAL_COMPLETE; 9051 cdb = (struct scsi_report_luns *)ctsio->cdb; 9052 port = ctl_io_port(&ctsio->io_hdr); 9053 softc = port->ctl_softc; 9054 9055 CTL_DEBUG_PRINT(("ctl_report_luns\n")); 9056 9057 mtx_lock(&softc->ctl_lock); 9058 num_luns = 0; 9059 for (targ_lun_id = 0; targ_lun_id < CTL_MAX_LUNS; targ_lun_id++) { 9060 if (ctl_lun_map_from_port(port, targ_lun_id) < CTL_MAX_LUNS) 9061 num_luns++; 9062 } 9063 mtx_unlock(&softc->ctl_lock); 9064 9065 switch (cdb->select_report) { 9066 case RPL_REPORT_DEFAULT: 9067 case RPL_REPORT_ALL: 9068 case RPL_REPORT_NONSUBSID: 9069 break; 9070 case RPL_REPORT_WELLKNOWN: 9071 case RPL_REPORT_ADMIN: 9072 case RPL_REPORT_CONGLOM: 9073 num_luns = 0; 9074 break; 9075 default: 9076 ctl_set_invalid_field(ctsio, 9077 /*sks_valid*/ 1, 9078 /*command*/ 1, 9079 /*field*/ 2, 9080 /*bit_valid*/ 0, 9081 /*bit*/ 0); 9082 ctl_done((union ctl_io *)ctsio); 9083 return (retval); 9084 break; /* NOTREACHED */ 9085 } 9086 9087 alloc_len = scsi_4btoul(cdb->length); 9088 /* 9089 * The initiator has to allocate at least 16 bytes for this request, 9090 * so he can at least get the header and the first LUN. Otherwise 9091 * we reject the request (per SPC-3 rev 14, section 6.21). 9092 */ 9093 if (alloc_len < (sizeof(struct scsi_report_luns_data) + 9094 sizeof(struct scsi_report_luns_lundata))) { 9095 ctl_set_invalid_field(ctsio, 9096 /*sks_valid*/ 1, 9097 /*command*/ 1, 9098 /*field*/ 6, 9099 /*bit_valid*/ 0, 9100 /*bit*/ 0); 9101 ctl_done((union ctl_io *)ctsio); 9102 return (retval); 9103 } 9104 9105 request_lun = (struct ctl_lun *) 9106 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9107 9108 lun_datalen = sizeof(*lun_data) + 9109 (num_luns * sizeof(struct scsi_report_luns_lundata)); 9110 9111 ctsio->kern_data_ptr = malloc(lun_datalen, M_CTL, M_WAITOK | M_ZERO); 9112 lun_data = (struct scsi_report_luns_data *)ctsio->kern_data_ptr; 9113 ctsio->kern_sg_entries = 0; 9114 9115 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 9116 9117 mtx_lock(&softc->ctl_lock); 9118 for (targ_lun_id = 0, num_filled = 0; targ_lun_id < CTL_MAX_LUNS && num_filled < num_luns; targ_lun_id++) { 9119 lun_id = ctl_lun_map_from_port(port, targ_lun_id); 9120 if (lun_id >= CTL_MAX_LUNS) 9121 continue; 9122 lun = softc->ctl_luns[lun_id]; 9123 if (lun == NULL) 9124 continue; 9125 9126 be64enc(lun_data->luns[num_filled++].lundata, 9127 ctl_encode_lun(targ_lun_id)); 9128 9129 /* 9130 * According to SPC-3, rev 14 section 6.21: 9131 * 9132 * "The execution of a REPORT LUNS command to any valid and 9133 * installed logical unit shall clear the REPORTED LUNS DATA 9134 * HAS CHANGED unit attention condition for all logical 9135 * units of that target with respect to the requesting 9136 * initiator. A valid and installed logical unit is one 9137 * having a PERIPHERAL QUALIFIER of 000b in the standard 9138 * INQUIRY data (see 6.4.2)." 9139 * 9140 * If request_lun is NULL, the LUN this report luns command 9141 * was issued to is either disabled or doesn't exist. In that 9142 * case, we shouldn't clear any pending lun change unit 9143 * attention. 9144 */ 9145 if (request_lun != NULL) { 9146 mtx_lock(&lun->lun_lock); 9147 ctl_clr_ua(lun, initidx, CTL_UA_LUN_CHANGE); 9148 mtx_unlock(&lun->lun_lock); 9149 } 9150 } 9151 mtx_unlock(&softc->ctl_lock); 9152 9153 /* 9154 * It's quite possible that we've returned fewer LUNs than we allocated 9155 * space for. Trim it. 9156 */ 9157 lun_datalen = sizeof(*lun_data) + 9158 (num_filled * sizeof(struct scsi_report_luns_lundata)); 9159 9160 if (lun_datalen < alloc_len) { 9161 ctsio->residual = alloc_len - lun_datalen; 9162 ctsio->kern_data_len = lun_datalen; 9163 ctsio->kern_total_len = lun_datalen; 9164 } else { 9165 ctsio->residual = 0; 9166 ctsio->kern_data_len = alloc_len; 9167 ctsio->kern_total_len = alloc_len; 9168 } 9169 ctsio->kern_data_resid = 0; 9170 ctsio->kern_rel_offset = 0; 9171 ctsio->kern_sg_entries = 0; 9172 9173 /* 9174 * We set this to the actual data length, regardless of how much 9175 * space we actually have to return results. If the user looks at 9176 * this value, he'll know whether or not he allocated enough space 9177 * and reissue the command if necessary. We don't support well 9178 * known logical units, so if the user asks for that, return none. 9179 */ 9180 scsi_ulto4b(lun_datalen - 8, lun_data->length); 9181 9182 /* 9183 * We can only return SCSI_STATUS_CHECK_COND when we can't satisfy 9184 * this request. 9185 */ 9186 ctl_set_success(ctsio); 9187 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9188 ctsio->be_move_done = ctl_config_move_done; 9189 ctl_datamove((union ctl_io *)ctsio); 9190 return (retval); 9191} 9192 9193int 9194ctl_request_sense(struct ctl_scsiio *ctsio) 9195{ 9196 struct scsi_request_sense *cdb; 9197 struct scsi_sense_data *sense_ptr; 9198 struct ctl_softc *softc; 9199 struct ctl_lun *lun; 9200 uint32_t initidx; 9201 int have_error; 9202 scsi_sense_data_type sense_format; 9203 ctl_ua_type ua_type; 9204 uint8_t asc = 0, ascq = 0; 9205 9206 cdb = (struct scsi_request_sense *)ctsio->cdb; 9207 9208 softc = control_softc; 9209 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9210 9211 CTL_DEBUG_PRINT(("ctl_request_sense\n")); 9212 9213 /* 9214 * Determine which sense format the user wants. 9215 */ 9216 if (cdb->byte2 & SRS_DESC) 9217 sense_format = SSD_TYPE_DESC; 9218 else 9219 sense_format = SSD_TYPE_FIXED; 9220 9221 ctsio->kern_data_ptr = malloc(sizeof(*sense_ptr), M_CTL, M_WAITOK); 9222 sense_ptr = (struct scsi_sense_data *)ctsio->kern_data_ptr; 9223 ctsio->kern_sg_entries = 0; 9224 9225 /* 9226 * struct scsi_sense_data, which is currently set to 256 bytes, is 9227 * larger than the largest allowed value for the length field in the 9228 * REQUEST SENSE CDB, which is 252 bytes as of SPC-4. 9229 */ 9230 ctsio->residual = 0; 9231 ctsio->kern_data_len = cdb->length; 9232 ctsio->kern_total_len = cdb->length; 9233 9234 ctsio->kern_data_resid = 0; 9235 ctsio->kern_rel_offset = 0; 9236 ctsio->kern_sg_entries = 0; 9237 9238 /* 9239 * If we don't have a LUN, we don't have any pending sense. 9240 */ 9241 if (lun == NULL || 9242 ((lun->flags & CTL_LUN_PRIMARY_SC) == 0 && 9243 softc->ha_link < CTL_HA_LINK_UNKNOWN)) { 9244 /* "Logical unit not supported" */ 9245 ctl_set_sense_data(sense_ptr, NULL, sense_format, 9246 /*current_error*/ 1, 9247 /*sense_key*/ SSD_KEY_ILLEGAL_REQUEST, 9248 /*asc*/ 0x25, 9249 /*ascq*/ 0x00, 9250 SSD_ELEM_NONE); 9251 goto send; 9252 } 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 if (have_error == 0) { 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(&softc->ctl_lock); 9307 ctl_clr_ua_allluns(softc, initidx, ua_type); 9308 mtx_unlock(&softc->ctl_lock); 9309 mtx_lock(&lun->lun_lock); 9310 } 9311 } 9312 if (have_error == 0) { 9313 /* 9314 * Report informational exception if have one and allowed. 9315 */ 9316 if (lun->MODE_IE.mrie != SIEP_MRIE_NO) { 9317 asc = lun->ie_asc; 9318 ascq = lun->ie_ascq; 9319 } 9320 ctl_set_sense_data(sense_ptr, lun, sense_format, 9321 /*current_error*/ 1, 9322 /*sense_key*/ SSD_KEY_NO_SENSE, 9323 /*asc*/ asc, 9324 /*ascq*/ ascq, 9325 SSD_ELEM_NONE); 9326 } 9327 mtx_unlock(&lun->lun_lock); 9328 9329send: 9330 /* 9331 * We report the SCSI status as OK, since the status of the command 9332 * itself is OK. We're reporting sense as parameter data. 9333 */ 9334 ctl_set_success(ctsio); 9335 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9336 ctsio->be_move_done = ctl_config_move_done; 9337 ctl_datamove((union ctl_io *)ctsio); 9338 return (CTL_RETVAL_COMPLETE); 9339} 9340 9341int 9342ctl_tur(struct ctl_scsiio *ctsio) 9343{ 9344 9345 CTL_DEBUG_PRINT(("ctl_tur\n")); 9346 9347 ctl_set_success(ctsio); 9348 ctl_done((union ctl_io *)ctsio); 9349 9350 return (CTL_RETVAL_COMPLETE); 9351} 9352 9353/* 9354 * SCSI VPD page 0x00, the Supported VPD Pages page. 9355 */ 9356static int 9357ctl_inquiry_evpd_supported(struct ctl_scsiio *ctsio, int alloc_len) 9358{ 9359 struct scsi_vpd_supported_pages *pages; 9360 int sup_page_size; 9361 struct ctl_lun *lun; 9362 int p; 9363 9364 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9365 9366 sup_page_size = sizeof(struct scsi_vpd_supported_pages) * 9367 SCSI_EVPD_NUM_SUPPORTED_PAGES; 9368 ctsio->kern_data_ptr = malloc(sup_page_size, M_CTL, M_WAITOK | M_ZERO); 9369 pages = (struct scsi_vpd_supported_pages *)ctsio->kern_data_ptr; 9370 ctsio->kern_sg_entries = 0; 9371 9372 if (sup_page_size < alloc_len) { 9373 ctsio->residual = alloc_len - sup_page_size; 9374 ctsio->kern_data_len = sup_page_size; 9375 ctsio->kern_total_len = sup_page_size; 9376 } else { 9377 ctsio->residual = 0; 9378 ctsio->kern_data_len = alloc_len; 9379 ctsio->kern_total_len = alloc_len; 9380 } 9381 ctsio->kern_data_resid = 0; 9382 ctsio->kern_rel_offset = 0; 9383 ctsio->kern_sg_entries = 0; 9384 9385 /* 9386 * The control device is always connected. The disk device, on the 9387 * other hand, may not be online all the time. Need to change this 9388 * to figure out whether the disk device is actually online or not. 9389 */ 9390 if (lun != NULL) 9391 pages->device = (SID_QUAL_LU_CONNECTED << 5) | 9392 lun->be_lun->lun_type; 9393 else 9394 pages->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9395 9396 p = 0; 9397 /* Supported VPD pages */ 9398 pages->page_list[p++] = SVPD_SUPPORTED_PAGES; 9399 /* Serial Number */ 9400 pages->page_list[p++] = SVPD_UNIT_SERIAL_NUMBER; 9401 /* Device Identification */ 9402 pages->page_list[p++] = SVPD_DEVICE_ID; 9403 /* Extended INQUIRY Data */ 9404 pages->page_list[p++] = SVPD_EXTENDED_INQUIRY_DATA; 9405 /* Mode Page Policy */ 9406 pages->page_list[p++] = SVPD_MODE_PAGE_POLICY; 9407 /* SCSI Ports */ 9408 pages->page_list[p++] = SVPD_SCSI_PORTS; 9409 /* Third-party Copy */ 9410 pages->page_list[p++] = SVPD_SCSI_TPC; 9411 if (lun != NULL && lun->be_lun->lun_type == T_DIRECT) { 9412 /* Block limits */ 9413 pages->page_list[p++] = SVPD_BLOCK_LIMITS; 9414 /* Block Device Characteristics */ 9415 pages->page_list[p++] = SVPD_BDC; 9416 /* Logical Block Provisioning */ 9417 pages->page_list[p++] = SVPD_LBP; 9418 } 9419 pages->length = p; 9420 9421 ctl_set_success(ctsio); 9422 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9423 ctsio->be_move_done = ctl_config_move_done; 9424 ctl_datamove((union ctl_io *)ctsio); 9425 return (CTL_RETVAL_COMPLETE); 9426} 9427 9428/* 9429 * SCSI VPD page 0x80, the Unit Serial Number page. 9430 */ 9431static int 9432ctl_inquiry_evpd_serial(struct ctl_scsiio *ctsio, int alloc_len) 9433{ 9434 struct scsi_vpd_unit_serial_number *sn_ptr; 9435 struct ctl_lun *lun; 9436 int data_len; 9437 9438 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9439 9440 data_len = 4 + CTL_SN_LEN; 9441 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9442 sn_ptr = (struct scsi_vpd_unit_serial_number *)ctsio->kern_data_ptr; 9443 if (data_len < alloc_len) { 9444 ctsio->residual = alloc_len - data_len; 9445 ctsio->kern_data_len = data_len; 9446 ctsio->kern_total_len = data_len; 9447 } else { 9448 ctsio->residual = 0; 9449 ctsio->kern_data_len = alloc_len; 9450 ctsio->kern_total_len = alloc_len; 9451 } 9452 ctsio->kern_data_resid = 0; 9453 ctsio->kern_rel_offset = 0; 9454 ctsio->kern_sg_entries = 0; 9455 9456 /* 9457 * The control device is always connected. The disk device, on the 9458 * other hand, may not be online all the time. Need to change this 9459 * to figure out whether the disk device is actually online or not. 9460 */ 9461 if (lun != NULL) 9462 sn_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9463 lun->be_lun->lun_type; 9464 else 9465 sn_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9466 9467 sn_ptr->page_code = SVPD_UNIT_SERIAL_NUMBER; 9468 sn_ptr->length = CTL_SN_LEN; 9469 /* 9470 * If we don't have a LUN, we just leave the serial number as 9471 * all spaces. 9472 */ 9473 if (lun != NULL) { 9474 strncpy((char *)sn_ptr->serial_num, 9475 (char *)lun->be_lun->serial_num, CTL_SN_LEN); 9476 } else 9477 memset(sn_ptr->serial_num, 0x20, CTL_SN_LEN); 9478 9479 ctl_set_success(ctsio); 9480 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9481 ctsio->be_move_done = ctl_config_move_done; 9482 ctl_datamove((union ctl_io *)ctsio); 9483 return (CTL_RETVAL_COMPLETE); 9484} 9485 9486 9487/* 9488 * SCSI VPD page 0x86, the Extended INQUIRY Data page. 9489 */ 9490static int 9491ctl_inquiry_evpd_eid(struct ctl_scsiio *ctsio, int alloc_len) 9492{ 9493 struct scsi_vpd_extended_inquiry_data *eid_ptr; 9494 struct ctl_lun *lun; 9495 int data_len; 9496 9497 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9498 9499 data_len = sizeof(struct scsi_vpd_extended_inquiry_data); 9500 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9501 eid_ptr = (struct scsi_vpd_extended_inquiry_data *)ctsio->kern_data_ptr; 9502 ctsio->kern_sg_entries = 0; 9503 9504 if (data_len < alloc_len) { 9505 ctsio->residual = alloc_len - data_len; 9506 ctsio->kern_data_len = data_len; 9507 ctsio->kern_total_len = data_len; 9508 } else { 9509 ctsio->residual = 0; 9510 ctsio->kern_data_len = alloc_len; 9511 ctsio->kern_total_len = alloc_len; 9512 } 9513 ctsio->kern_data_resid = 0; 9514 ctsio->kern_rel_offset = 0; 9515 ctsio->kern_sg_entries = 0; 9516 9517 /* 9518 * The control device is always connected. The disk device, on the 9519 * other hand, may not be online all the time. 9520 */ 9521 if (lun != NULL) 9522 eid_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9523 lun->be_lun->lun_type; 9524 else 9525 eid_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9526 eid_ptr->page_code = SVPD_EXTENDED_INQUIRY_DATA; 9527 scsi_ulto2b(data_len - 4, eid_ptr->page_length); 9528 /* 9529 * We support head of queue, ordered and simple tags. 9530 */ 9531 eid_ptr->flags2 = SVPD_EID_HEADSUP | SVPD_EID_ORDSUP | SVPD_EID_SIMPSUP; 9532 /* 9533 * Volatile cache supported. 9534 */ 9535 eid_ptr->flags3 = SVPD_EID_V_SUP; 9536 9537 /* 9538 * This means that we clear the REPORTED LUNS DATA HAS CHANGED unit 9539 * attention for a particular IT nexus on all LUNs once we report 9540 * it to that nexus once. This bit is required as of SPC-4. 9541 */ 9542 eid_ptr->flags4 = SVPD_EID_LUICLR; 9543 9544 /* 9545 * XXX KDM in order to correctly answer this, we would need 9546 * information from the SIM to determine how much sense data it 9547 * can send. So this would really be a path inquiry field, most 9548 * likely. This can be set to a maximum of 252 according to SPC-4, 9549 * but the hardware may or may not be able to support that much. 9550 * 0 just means that the maximum sense data length is not reported. 9551 */ 9552 eid_ptr->max_sense_length = 0; 9553 9554 ctl_set_success(ctsio); 9555 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9556 ctsio->be_move_done = ctl_config_move_done; 9557 ctl_datamove((union ctl_io *)ctsio); 9558 return (CTL_RETVAL_COMPLETE); 9559} 9560 9561static int 9562ctl_inquiry_evpd_mpp(struct ctl_scsiio *ctsio, int alloc_len) 9563{ 9564 struct scsi_vpd_mode_page_policy *mpp_ptr; 9565 struct ctl_lun *lun; 9566 int data_len; 9567 9568 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9569 9570 data_len = sizeof(struct scsi_vpd_mode_page_policy) + 9571 sizeof(struct scsi_vpd_mode_page_policy_descr); 9572 9573 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9574 mpp_ptr = (struct scsi_vpd_mode_page_policy *)ctsio->kern_data_ptr; 9575 ctsio->kern_sg_entries = 0; 9576 9577 if (data_len < alloc_len) { 9578 ctsio->residual = alloc_len - data_len; 9579 ctsio->kern_data_len = data_len; 9580 ctsio->kern_total_len = data_len; 9581 } else { 9582 ctsio->residual = 0; 9583 ctsio->kern_data_len = alloc_len; 9584 ctsio->kern_total_len = alloc_len; 9585 } 9586 ctsio->kern_data_resid = 0; 9587 ctsio->kern_rel_offset = 0; 9588 ctsio->kern_sg_entries = 0; 9589 9590 /* 9591 * The control device is always connected. The disk device, on the 9592 * other hand, may not be online all the time. 9593 */ 9594 if (lun != NULL) 9595 mpp_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9596 lun->be_lun->lun_type; 9597 else 9598 mpp_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9599 mpp_ptr->page_code = SVPD_MODE_PAGE_POLICY; 9600 scsi_ulto2b(data_len - 4, mpp_ptr->page_length); 9601 mpp_ptr->descr[0].page_code = 0x3f; 9602 mpp_ptr->descr[0].subpage_code = 0xff; 9603 mpp_ptr->descr[0].policy = SVPD_MPP_SHARED; 9604 9605 ctl_set_success(ctsio); 9606 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9607 ctsio->be_move_done = ctl_config_move_done; 9608 ctl_datamove((union ctl_io *)ctsio); 9609 return (CTL_RETVAL_COMPLETE); 9610} 9611 9612/* 9613 * SCSI VPD page 0x83, the Device Identification page. 9614 */ 9615static int 9616ctl_inquiry_evpd_devid(struct ctl_scsiio *ctsio, int alloc_len) 9617{ 9618 struct scsi_vpd_device_id *devid_ptr; 9619 struct scsi_vpd_id_descriptor *desc; 9620 struct ctl_softc *softc; 9621 struct ctl_lun *lun; 9622 struct ctl_port *port; 9623 int data_len, g; 9624 uint8_t proto; 9625 9626 softc = control_softc; 9627 9628 port = ctl_io_port(&ctsio->io_hdr); 9629 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9630 9631 data_len = sizeof(struct scsi_vpd_device_id) + 9632 sizeof(struct scsi_vpd_id_descriptor) + 9633 sizeof(struct scsi_vpd_id_rel_trgt_port_id) + 9634 sizeof(struct scsi_vpd_id_descriptor) + 9635 sizeof(struct scsi_vpd_id_trgt_port_grp_id); 9636 if (lun && lun->lun_devid) 9637 data_len += lun->lun_devid->len; 9638 if (port && port->port_devid) 9639 data_len += port->port_devid->len; 9640 if (port && port->target_devid) 9641 data_len += port->target_devid->len; 9642 9643 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9644 devid_ptr = (struct scsi_vpd_device_id *)ctsio->kern_data_ptr; 9645 ctsio->kern_sg_entries = 0; 9646 9647 if (data_len < alloc_len) { 9648 ctsio->residual = alloc_len - data_len; 9649 ctsio->kern_data_len = data_len; 9650 ctsio->kern_total_len = data_len; 9651 } else { 9652 ctsio->residual = 0; 9653 ctsio->kern_data_len = alloc_len; 9654 ctsio->kern_total_len = alloc_len; 9655 } 9656 ctsio->kern_data_resid = 0; 9657 ctsio->kern_rel_offset = 0; 9658 ctsio->kern_sg_entries = 0; 9659 9660 /* 9661 * The control device is always connected. The disk device, on the 9662 * other hand, may not be online all the time. 9663 */ 9664 if (lun != NULL) 9665 devid_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9666 lun->be_lun->lun_type; 9667 else 9668 devid_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9669 devid_ptr->page_code = SVPD_DEVICE_ID; 9670 scsi_ulto2b(data_len - 4, devid_ptr->length); 9671 9672 if (port && port->port_type == CTL_PORT_FC) 9673 proto = SCSI_PROTO_FC << 4; 9674 else if (port && port->port_type == CTL_PORT_ISCSI) 9675 proto = SCSI_PROTO_ISCSI << 4; 9676 else 9677 proto = SCSI_PROTO_SPI << 4; 9678 desc = (struct scsi_vpd_id_descriptor *)devid_ptr->desc_list; 9679 9680 /* 9681 * We're using a LUN association here. i.e., this device ID is a 9682 * per-LUN identifier. 9683 */ 9684 if (lun && lun->lun_devid) { 9685 memcpy(desc, lun->lun_devid->data, lun->lun_devid->len); 9686 desc = (struct scsi_vpd_id_descriptor *)((uint8_t *)desc + 9687 lun->lun_devid->len); 9688 } 9689 9690 /* 9691 * This is for the WWPN which is a port association. 9692 */ 9693 if (port && port->port_devid) { 9694 memcpy(desc, port->port_devid->data, port->port_devid->len); 9695 desc = (struct scsi_vpd_id_descriptor *)((uint8_t *)desc + 9696 port->port_devid->len); 9697 } 9698 9699 /* 9700 * This is for the Relative Target Port(type 4h) identifier 9701 */ 9702 desc->proto_codeset = proto | SVPD_ID_CODESET_BINARY; 9703 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_PORT | 9704 SVPD_ID_TYPE_RELTARG; 9705 desc->length = 4; 9706 scsi_ulto2b(ctsio->io_hdr.nexus.targ_port, &desc->identifier[2]); 9707 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 9708 sizeof(struct scsi_vpd_id_rel_trgt_port_id)); 9709 9710 /* 9711 * This is for the Target Port Group(type 5h) identifier 9712 */ 9713 desc->proto_codeset = proto | SVPD_ID_CODESET_BINARY; 9714 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_PORT | 9715 SVPD_ID_TYPE_TPORTGRP; 9716 desc->length = 4; 9717 if (softc->is_single || 9718 (port && port->status & CTL_PORT_STATUS_HA_SHARED)) 9719 g = 1; 9720 else 9721 g = 2 + ctsio->io_hdr.nexus.targ_port / softc->port_cnt; 9722 scsi_ulto2b(g, &desc->identifier[2]); 9723 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 9724 sizeof(struct scsi_vpd_id_trgt_port_grp_id)); 9725 9726 /* 9727 * This is for the Target identifier 9728 */ 9729 if (port && port->target_devid) { 9730 memcpy(desc, port->target_devid->data, port->target_devid->len); 9731 } 9732 9733 ctl_set_success(ctsio); 9734 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9735 ctsio->be_move_done = ctl_config_move_done; 9736 ctl_datamove((union ctl_io *)ctsio); 9737 return (CTL_RETVAL_COMPLETE); 9738} 9739 9740static int 9741ctl_inquiry_evpd_scsi_ports(struct ctl_scsiio *ctsio, int alloc_len) 9742{ 9743 struct ctl_softc *softc = control_softc; 9744 struct scsi_vpd_scsi_ports *sp; 9745 struct scsi_vpd_port_designation *pd; 9746 struct scsi_vpd_port_designation_cont *pdc; 9747 struct ctl_lun *lun; 9748 struct ctl_port *port; 9749 int data_len, num_target_ports, iid_len, id_len; 9750 9751 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9752 9753 num_target_ports = 0; 9754 iid_len = 0; 9755 id_len = 0; 9756 mtx_lock(&softc->ctl_lock); 9757 STAILQ_FOREACH(port, &softc->port_list, links) { 9758 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 9759 continue; 9760 if (lun != NULL && 9761 ctl_lun_map_to_port(port, lun->lun) >= CTL_MAX_LUNS) 9762 continue; 9763 num_target_ports++; 9764 if (port->init_devid) 9765 iid_len += port->init_devid->len; 9766 if (port->port_devid) 9767 id_len += port->port_devid->len; 9768 } 9769 mtx_unlock(&softc->ctl_lock); 9770 9771 data_len = sizeof(struct scsi_vpd_scsi_ports) + 9772 num_target_ports * (sizeof(struct scsi_vpd_port_designation) + 9773 sizeof(struct scsi_vpd_port_designation_cont)) + iid_len + id_len; 9774 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9775 sp = (struct scsi_vpd_scsi_ports *)ctsio->kern_data_ptr; 9776 ctsio->kern_sg_entries = 0; 9777 9778 if (data_len < alloc_len) { 9779 ctsio->residual = alloc_len - data_len; 9780 ctsio->kern_data_len = data_len; 9781 ctsio->kern_total_len = data_len; 9782 } else { 9783 ctsio->residual = 0; 9784 ctsio->kern_data_len = alloc_len; 9785 ctsio->kern_total_len = alloc_len; 9786 } 9787 ctsio->kern_data_resid = 0; 9788 ctsio->kern_rel_offset = 0; 9789 ctsio->kern_sg_entries = 0; 9790 9791 /* 9792 * The control device is always connected. The disk device, on the 9793 * other hand, may not be online all the time. Need to change this 9794 * to figure out whether the disk device is actually online or not. 9795 */ 9796 if (lun != NULL) 9797 sp->device = (SID_QUAL_LU_CONNECTED << 5) | 9798 lun->be_lun->lun_type; 9799 else 9800 sp->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9801 9802 sp->page_code = SVPD_SCSI_PORTS; 9803 scsi_ulto2b(data_len - sizeof(struct scsi_vpd_scsi_ports), 9804 sp->page_length); 9805 pd = &sp->design[0]; 9806 9807 mtx_lock(&softc->ctl_lock); 9808 STAILQ_FOREACH(port, &softc->port_list, links) { 9809 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 9810 continue; 9811 if (lun != NULL && 9812 ctl_lun_map_to_port(port, lun->lun) >= CTL_MAX_LUNS) 9813 continue; 9814 scsi_ulto2b(port->targ_port, pd->relative_port_id); 9815 if (port->init_devid) { 9816 iid_len = port->init_devid->len; 9817 memcpy(pd->initiator_transportid, 9818 port->init_devid->data, port->init_devid->len); 9819 } else 9820 iid_len = 0; 9821 scsi_ulto2b(iid_len, pd->initiator_transportid_length); 9822 pdc = (struct scsi_vpd_port_designation_cont *) 9823 (&pd->initiator_transportid[iid_len]); 9824 if (port->port_devid) { 9825 id_len = port->port_devid->len; 9826 memcpy(pdc->target_port_descriptors, 9827 port->port_devid->data, port->port_devid->len); 9828 } else 9829 id_len = 0; 9830 scsi_ulto2b(id_len, pdc->target_port_descriptors_length); 9831 pd = (struct scsi_vpd_port_designation *) 9832 ((uint8_t *)pdc->target_port_descriptors + id_len); 9833 } 9834 mtx_unlock(&softc->ctl_lock); 9835 9836 ctl_set_success(ctsio); 9837 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9838 ctsio->be_move_done = ctl_config_move_done; 9839 ctl_datamove((union ctl_io *)ctsio); 9840 return (CTL_RETVAL_COMPLETE); 9841} 9842 9843static int 9844ctl_inquiry_evpd_block_limits(struct ctl_scsiio *ctsio, int alloc_len) 9845{ 9846 struct scsi_vpd_block_limits *bl_ptr; 9847 struct ctl_lun *lun; 9848 uint64_t ival; 9849 9850 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9851 9852 ctsio->kern_data_ptr = malloc(sizeof(*bl_ptr), M_CTL, M_WAITOK | M_ZERO); 9853 bl_ptr = (struct scsi_vpd_block_limits *)ctsio->kern_data_ptr; 9854 ctsio->kern_sg_entries = 0; 9855 9856 if (sizeof(*bl_ptr) < alloc_len) { 9857 ctsio->residual = alloc_len - sizeof(*bl_ptr); 9858 ctsio->kern_data_len = sizeof(*bl_ptr); 9859 ctsio->kern_total_len = sizeof(*bl_ptr); 9860 } else { 9861 ctsio->residual = 0; 9862 ctsio->kern_data_len = alloc_len; 9863 ctsio->kern_total_len = alloc_len; 9864 } 9865 ctsio->kern_data_resid = 0; 9866 ctsio->kern_rel_offset = 0; 9867 ctsio->kern_sg_entries = 0; 9868 9869 /* 9870 * The control device is always connected. The disk device, on the 9871 * other hand, may not be online all the time. Need to change this 9872 * to figure out whether the disk device is actually online or not. 9873 */ 9874 if (lun != NULL) 9875 bl_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9876 lun->be_lun->lun_type; 9877 else 9878 bl_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9879 9880 bl_ptr->page_code = SVPD_BLOCK_LIMITS; 9881 scsi_ulto2b(sizeof(*bl_ptr) - 4, bl_ptr->page_length); 9882 bl_ptr->max_cmp_write_len = 0xff; 9883 scsi_ulto4b(0xffffffff, bl_ptr->max_txfer_len); 9884 if (lun != NULL) { 9885 scsi_ulto4b(lun->be_lun->opttxferlen, bl_ptr->opt_txfer_len); 9886 if (lun->be_lun->flags & CTL_LUN_FLAG_UNMAP) { 9887 ival = 0xffffffff; 9888 ctl_get_opt_number(&lun->be_lun->options, 9889 "unmap_max_lba", &ival); 9890 scsi_ulto4b(ival, bl_ptr->max_unmap_lba_cnt); 9891 ival = 0xffffffff; 9892 ctl_get_opt_number(&lun->be_lun->options, 9893 "unmap_max_descr", &ival); 9894 scsi_ulto4b(ival, bl_ptr->max_unmap_blk_cnt); 9895 if (lun->be_lun->ublockexp != 0) { 9896 scsi_ulto4b((1 << lun->be_lun->ublockexp), 9897 bl_ptr->opt_unmap_grain); 9898 scsi_ulto4b(0x80000000 | lun->be_lun->ublockoff, 9899 bl_ptr->unmap_grain_align); 9900 } 9901 } 9902 scsi_ulto4b(lun->be_lun->atomicblock, 9903 bl_ptr->max_atomic_transfer_length); 9904 scsi_ulto4b(0, bl_ptr->atomic_alignment); 9905 scsi_ulto4b(0, bl_ptr->atomic_transfer_length_granularity); 9906 scsi_ulto4b(0, bl_ptr->max_atomic_transfer_length_with_atomic_boundary); 9907 scsi_ulto4b(0, bl_ptr->max_atomic_boundary_size); 9908 ival = UINT64_MAX; 9909 ctl_get_opt_number(&lun->be_lun->options, "write_same_max_lba", &ival); 9910 scsi_u64to8b(ival, bl_ptr->max_write_same_length); 9911 } 9912 9913 ctl_set_success(ctsio); 9914 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9915 ctsio->be_move_done = ctl_config_move_done; 9916 ctl_datamove((union ctl_io *)ctsio); 9917 return (CTL_RETVAL_COMPLETE); 9918} 9919 9920static int 9921ctl_inquiry_evpd_bdc(struct ctl_scsiio *ctsio, int alloc_len) 9922{ 9923 struct scsi_vpd_block_device_characteristics *bdc_ptr; 9924 struct ctl_lun *lun; 9925 const char *value; 9926 u_int i; 9927 9928 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9929 9930 ctsio->kern_data_ptr = malloc(sizeof(*bdc_ptr), M_CTL, M_WAITOK | M_ZERO); 9931 bdc_ptr = (struct scsi_vpd_block_device_characteristics *)ctsio->kern_data_ptr; 9932 ctsio->kern_sg_entries = 0; 9933 9934 if (sizeof(*bdc_ptr) < alloc_len) { 9935 ctsio->residual = alloc_len - sizeof(*bdc_ptr); 9936 ctsio->kern_data_len = sizeof(*bdc_ptr); 9937 ctsio->kern_total_len = sizeof(*bdc_ptr); 9938 } else { 9939 ctsio->residual = 0; 9940 ctsio->kern_data_len = alloc_len; 9941 ctsio->kern_total_len = alloc_len; 9942 } 9943 ctsio->kern_data_resid = 0; 9944 ctsio->kern_rel_offset = 0; 9945 ctsio->kern_sg_entries = 0; 9946 9947 /* 9948 * The control device is always connected. The disk device, on the 9949 * other hand, may not be online all the time. Need to change this 9950 * to figure out whether the disk device is actually online or not. 9951 */ 9952 if (lun != NULL) 9953 bdc_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9954 lun->be_lun->lun_type; 9955 else 9956 bdc_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9957 bdc_ptr->page_code = SVPD_BDC; 9958 scsi_ulto2b(sizeof(*bdc_ptr) - 4, bdc_ptr->page_length); 9959 if (lun != NULL && 9960 (value = ctl_get_opt(&lun->be_lun->options, "rpm")) != NULL) 9961 i = strtol(value, NULL, 0); 9962 else 9963 i = CTL_DEFAULT_ROTATION_RATE; 9964 scsi_ulto2b(i, bdc_ptr->medium_rotation_rate); 9965 if (lun != NULL && 9966 (value = ctl_get_opt(&lun->be_lun->options, "formfactor")) != NULL) 9967 i = strtol(value, NULL, 0); 9968 else 9969 i = 0; 9970 bdc_ptr->wab_wac_ff = (i & 0x0f); 9971 bdc_ptr->flags = SVPD_FUAB | SVPD_VBULS; 9972 9973 ctl_set_success(ctsio); 9974 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9975 ctsio->be_move_done = ctl_config_move_done; 9976 ctl_datamove((union ctl_io *)ctsio); 9977 return (CTL_RETVAL_COMPLETE); 9978} 9979 9980static int 9981ctl_inquiry_evpd_lbp(struct ctl_scsiio *ctsio, int alloc_len) 9982{ 9983 struct scsi_vpd_logical_block_prov *lbp_ptr; 9984 struct ctl_lun *lun; 9985 const char *value; 9986 9987 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9988 9989 ctsio->kern_data_ptr = malloc(sizeof(*lbp_ptr), M_CTL, M_WAITOK | M_ZERO); 9990 lbp_ptr = (struct scsi_vpd_logical_block_prov *)ctsio->kern_data_ptr; 9991 ctsio->kern_sg_entries = 0; 9992 9993 if (sizeof(*lbp_ptr) < alloc_len) { 9994 ctsio->residual = alloc_len - sizeof(*lbp_ptr); 9995 ctsio->kern_data_len = sizeof(*lbp_ptr); 9996 ctsio->kern_total_len = sizeof(*lbp_ptr); 9997 } else { 9998 ctsio->residual = 0; 9999 ctsio->kern_data_len = alloc_len; 10000 ctsio->kern_total_len = alloc_len; 10001 } 10002 ctsio->kern_data_resid = 0; 10003 ctsio->kern_rel_offset = 0; 10004 ctsio->kern_sg_entries = 0; 10005 10006 /* 10007 * The control device is always connected. The disk device, on the 10008 * other hand, may not be online all the time. Need to change this 10009 * to figure out whether the disk device is actually online or not. 10010 */ 10011 if (lun != NULL) 10012 lbp_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10013 lun->be_lun->lun_type; 10014 else 10015 lbp_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10016 10017 lbp_ptr->page_code = SVPD_LBP; 10018 scsi_ulto2b(sizeof(*lbp_ptr) - 4, lbp_ptr->page_length); 10019 lbp_ptr->threshold_exponent = CTL_LBP_EXPONENT; 10020 if (lun != NULL && lun->be_lun->flags & CTL_LUN_FLAG_UNMAP) { 10021 lbp_ptr->flags = SVPD_LBP_UNMAP | SVPD_LBP_WS16 | 10022 SVPD_LBP_WS10 | SVPD_LBP_RZ | SVPD_LBP_ANC_SUP; 10023 value = ctl_get_opt(&lun->be_lun->options, "provisioning_type"); 10024 if (value != NULL) { 10025 if (strcmp(value, "resource") == 0) 10026 lbp_ptr->prov_type = SVPD_LBP_RESOURCE; 10027 else if (strcmp(value, "thin") == 0) 10028 lbp_ptr->prov_type = SVPD_LBP_THIN; 10029 } else 10030 lbp_ptr->prov_type = SVPD_LBP_THIN; 10031 } 10032 10033 ctl_set_success(ctsio); 10034 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10035 ctsio->be_move_done = ctl_config_move_done; 10036 ctl_datamove((union ctl_io *)ctsio); 10037 return (CTL_RETVAL_COMPLETE); 10038} 10039 10040/* 10041 * INQUIRY with the EVPD bit set. 10042 */ 10043static int 10044ctl_inquiry_evpd(struct ctl_scsiio *ctsio) 10045{ 10046 struct ctl_lun *lun; 10047 struct scsi_inquiry *cdb; 10048 int alloc_len, retval; 10049 10050 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10051 cdb = (struct scsi_inquiry *)ctsio->cdb; 10052 alloc_len = scsi_2btoul(cdb->length); 10053 10054 switch (cdb->page_code) { 10055 case SVPD_SUPPORTED_PAGES: 10056 retval = ctl_inquiry_evpd_supported(ctsio, alloc_len); 10057 break; 10058 case SVPD_UNIT_SERIAL_NUMBER: 10059 retval = ctl_inquiry_evpd_serial(ctsio, alloc_len); 10060 break; 10061 case SVPD_DEVICE_ID: 10062 retval = ctl_inquiry_evpd_devid(ctsio, alloc_len); 10063 break; 10064 case SVPD_EXTENDED_INQUIRY_DATA: 10065 retval = ctl_inquiry_evpd_eid(ctsio, alloc_len); 10066 break; 10067 case SVPD_MODE_PAGE_POLICY: 10068 retval = ctl_inquiry_evpd_mpp(ctsio, alloc_len); 10069 break; 10070 case SVPD_SCSI_PORTS: 10071 retval = ctl_inquiry_evpd_scsi_ports(ctsio, alloc_len); 10072 break; 10073 case SVPD_SCSI_TPC: 10074 retval = ctl_inquiry_evpd_tpc(ctsio, alloc_len); 10075 break; 10076 case SVPD_BLOCK_LIMITS: 10077 if (lun == NULL || lun->be_lun->lun_type != T_DIRECT) 10078 goto err; 10079 retval = ctl_inquiry_evpd_block_limits(ctsio, alloc_len); 10080 break; 10081 case SVPD_BDC: 10082 if (lun == NULL || lun->be_lun->lun_type != T_DIRECT) 10083 goto err; 10084 retval = ctl_inquiry_evpd_bdc(ctsio, alloc_len); 10085 break; 10086 case SVPD_LBP: 10087 if (lun == NULL || lun->be_lun->lun_type != T_DIRECT) 10088 goto err; 10089 retval = ctl_inquiry_evpd_lbp(ctsio, alloc_len); 10090 break; 10091 default: 10092err: 10093 ctl_set_invalid_field(ctsio, 10094 /*sks_valid*/ 1, 10095 /*command*/ 1, 10096 /*field*/ 2, 10097 /*bit_valid*/ 0, 10098 /*bit*/ 0); 10099 ctl_done((union ctl_io *)ctsio); 10100 retval = CTL_RETVAL_COMPLETE; 10101 break; 10102 } 10103 10104 return (retval); 10105} 10106 10107/* 10108 * Standard INQUIRY data. 10109 */ 10110static int 10111ctl_inquiry_std(struct ctl_scsiio *ctsio) 10112{ 10113 struct scsi_inquiry_data *inq_ptr; 10114 struct scsi_inquiry *cdb; 10115 struct ctl_softc *softc = control_softc; 10116 struct ctl_port *port; 10117 struct ctl_lun *lun; 10118 char *val; 10119 uint32_t alloc_len, data_len; 10120 ctl_port_type port_type; 10121 10122 port = ctl_io_port(&ctsio->io_hdr); 10123 port_type = port->port_type; 10124 if (port_type == CTL_PORT_IOCTL || port_type == CTL_PORT_INTERNAL) 10125 port_type = CTL_PORT_SCSI; 10126 10127 lun = ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10128 cdb = (struct scsi_inquiry *)ctsio->cdb; 10129 alloc_len = scsi_2btoul(cdb->length); 10130 10131 /* 10132 * We malloc the full inquiry data size here and fill it 10133 * in. If the user only asks for less, we'll give him 10134 * that much. 10135 */ 10136 data_len = offsetof(struct scsi_inquiry_data, vendor_specific1); 10137 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 10138 inq_ptr = (struct scsi_inquiry_data *)ctsio->kern_data_ptr; 10139 ctsio->kern_sg_entries = 0; 10140 ctsio->kern_data_resid = 0; 10141 ctsio->kern_rel_offset = 0; 10142 10143 if (data_len < alloc_len) { 10144 ctsio->residual = alloc_len - data_len; 10145 ctsio->kern_data_len = data_len; 10146 ctsio->kern_total_len = data_len; 10147 } else { 10148 ctsio->residual = 0; 10149 ctsio->kern_data_len = alloc_len; 10150 ctsio->kern_total_len = alloc_len; 10151 } 10152 10153 if (lun != NULL) { 10154 if ((lun->flags & CTL_LUN_PRIMARY_SC) || 10155 softc->ha_link >= CTL_HA_LINK_UNKNOWN) { 10156 inq_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10157 lun->be_lun->lun_type; 10158 } else { 10159 inq_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | 10160 lun->be_lun->lun_type; 10161 } 10162 if (lun->flags & CTL_LUN_REMOVABLE) 10163 inq_ptr->dev_qual2 |= SID_RMB; 10164 } else 10165 inq_ptr->device = (SID_QUAL_BAD_LU << 5) | T_NODEVICE; 10166 10167 /* RMB in byte 2 is 0 */ 10168 inq_ptr->version = SCSI_REV_SPC4; 10169 10170 /* 10171 * According to SAM-3, even if a device only supports a single 10172 * level of LUN addressing, it should still set the HISUP bit: 10173 * 10174 * 4.9.1 Logical unit numbers overview 10175 * 10176 * All logical unit number formats described in this standard are 10177 * hierarchical in structure even when only a single level in that 10178 * hierarchy is used. The HISUP bit shall be set to one in the 10179 * standard INQUIRY data (see SPC-2) when any logical unit number 10180 * format described in this standard is used. Non-hierarchical 10181 * formats are outside the scope of this standard. 10182 * 10183 * Therefore we set the HiSup bit here. 10184 * 10185 * The response format is 2, per SPC-3. 10186 */ 10187 inq_ptr->response_format = SID_HiSup | 2; 10188 10189 inq_ptr->additional_length = data_len - 10190 (offsetof(struct scsi_inquiry_data, additional_length) + 1); 10191 CTL_DEBUG_PRINT(("additional_length = %d\n", 10192 inq_ptr->additional_length)); 10193 10194 inq_ptr->spc3_flags = SPC3_SID_3PC | SPC3_SID_TPGS_IMPLICIT; 10195 if (port_type == CTL_PORT_SCSI) 10196 inq_ptr->spc2_flags = SPC2_SID_ADDR16; 10197 inq_ptr->spc2_flags |= SPC2_SID_MultiP; 10198 inq_ptr->flags = SID_CmdQue; 10199 if (port_type == CTL_PORT_SCSI) 10200 inq_ptr->flags |= SID_WBus16 | SID_Sync; 10201 10202 /* 10203 * Per SPC-3, unused bytes in ASCII strings are filled with spaces. 10204 * We have 8 bytes for the vendor name, and 16 bytes for the device 10205 * name and 4 bytes for the revision. 10206 */ 10207 if (lun == NULL || (val = ctl_get_opt(&lun->be_lun->options, 10208 "vendor")) == NULL) { 10209 strncpy(inq_ptr->vendor, CTL_VENDOR, sizeof(inq_ptr->vendor)); 10210 } else { 10211 memset(inq_ptr->vendor, ' ', sizeof(inq_ptr->vendor)); 10212 strncpy(inq_ptr->vendor, val, 10213 min(sizeof(inq_ptr->vendor), strlen(val))); 10214 } 10215 if (lun == NULL) { 10216 strncpy(inq_ptr->product, CTL_DIRECT_PRODUCT, 10217 sizeof(inq_ptr->product)); 10218 } else if ((val = ctl_get_opt(&lun->be_lun->options, "product")) == NULL) { 10219 switch (lun->be_lun->lun_type) { 10220 case T_DIRECT: 10221 strncpy(inq_ptr->product, CTL_DIRECT_PRODUCT, 10222 sizeof(inq_ptr->product)); 10223 break; 10224 case T_PROCESSOR: 10225 strncpy(inq_ptr->product, CTL_PROCESSOR_PRODUCT, 10226 sizeof(inq_ptr->product)); 10227 break; 10228 case T_CDROM: 10229 strncpy(inq_ptr->product, CTL_CDROM_PRODUCT, 10230 sizeof(inq_ptr->product)); 10231 break; 10232 default: 10233 strncpy(inq_ptr->product, CTL_UNKNOWN_PRODUCT, 10234 sizeof(inq_ptr->product)); 10235 break; 10236 } 10237 } else { 10238 memset(inq_ptr->product, ' ', sizeof(inq_ptr->product)); 10239 strncpy(inq_ptr->product, val, 10240 min(sizeof(inq_ptr->product), strlen(val))); 10241 } 10242 10243 /* 10244 * XXX make this a macro somewhere so it automatically gets 10245 * incremented when we make changes. 10246 */ 10247 if (lun == NULL || (val = ctl_get_opt(&lun->be_lun->options, 10248 "revision")) == NULL) { 10249 strncpy(inq_ptr->revision, "0001", sizeof(inq_ptr->revision)); 10250 } else { 10251 memset(inq_ptr->revision, ' ', sizeof(inq_ptr->revision)); 10252 strncpy(inq_ptr->revision, val, 10253 min(sizeof(inq_ptr->revision), strlen(val))); 10254 } 10255 10256 /* 10257 * For parallel SCSI, we support double transition and single 10258 * transition clocking. We also support QAS (Quick Arbitration 10259 * and Selection) and Information Unit transfers on both the 10260 * control and array devices. 10261 */ 10262 if (port_type == CTL_PORT_SCSI) 10263 inq_ptr->spi3data = SID_SPI_CLOCK_DT_ST | SID_SPI_QAS | 10264 SID_SPI_IUS; 10265 10266 /* SAM-5 (no version claimed) */ 10267 scsi_ulto2b(0x00A0, inq_ptr->version1); 10268 /* SPC-4 (no version claimed) */ 10269 scsi_ulto2b(0x0460, inq_ptr->version2); 10270 if (port_type == CTL_PORT_FC) { 10271 /* FCP-2 ANSI INCITS.350:2003 */ 10272 scsi_ulto2b(0x0917, inq_ptr->version3); 10273 } else if (port_type == CTL_PORT_SCSI) { 10274 /* SPI-4 ANSI INCITS.362:200x */ 10275 scsi_ulto2b(0x0B56, inq_ptr->version3); 10276 } else if (port_type == CTL_PORT_ISCSI) { 10277 /* iSCSI (no version claimed) */ 10278 scsi_ulto2b(0x0960, inq_ptr->version3); 10279 } else if (port_type == CTL_PORT_SAS) { 10280 /* SAS (no version claimed) */ 10281 scsi_ulto2b(0x0BE0, inq_ptr->version3); 10282 } 10283 10284 if (lun == NULL) { 10285 /* SBC-4 (no version claimed) */ 10286 scsi_ulto2b(0x0600, inq_ptr->version4); 10287 } else { 10288 switch (lun->be_lun->lun_type) { 10289 case T_DIRECT: 10290 /* SBC-4 (no version claimed) */ 10291 scsi_ulto2b(0x0600, inq_ptr->version4); 10292 break; 10293 case T_PROCESSOR: 10294 break; 10295 case T_CDROM: 10296 /* MMC-6 (no version claimed) */ 10297 scsi_ulto2b(0x04E0, inq_ptr->version4); 10298 break; 10299 default: 10300 break; 10301 } 10302 } 10303 10304 ctl_set_success(ctsio); 10305 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10306 ctsio->be_move_done = ctl_config_move_done; 10307 ctl_datamove((union ctl_io *)ctsio); 10308 return (CTL_RETVAL_COMPLETE); 10309} 10310 10311int 10312ctl_inquiry(struct ctl_scsiio *ctsio) 10313{ 10314 struct scsi_inquiry *cdb; 10315 int retval; 10316 10317 CTL_DEBUG_PRINT(("ctl_inquiry\n")); 10318 10319 cdb = (struct scsi_inquiry *)ctsio->cdb; 10320 if (cdb->byte2 & SI_EVPD) 10321 retval = ctl_inquiry_evpd(ctsio); 10322 else if (cdb->page_code == 0) 10323 retval = ctl_inquiry_std(ctsio); 10324 else { 10325 ctl_set_invalid_field(ctsio, 10326 /*sks_valid*/ 1, 10327 /*command*/ 1, 10328 /*field*/ 2, 10329 /*bit_valid*/ 0, 10330 /*bit*/ 0); 10331 ctl_done((union ctl_io *)ctsio); 10332 return (CTL_RETVAL_COMPLETE); 10333 } 10334 10335 return (retval); 10336} 10337 10338int 10339ctl_get_config(struct ctl_scsiio *ctsio) 10340{ 10341 struct scsi_get_config_header *hdr; 10342 struct scsi_get_config_feature *feature; 10343 struct scsi_get_config *cdb; 10344 struct ctl_lun *lun; 10345 uint32_t alloc_len, data_len; 10346 int rt, starting; 10347 10348 lun = ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10349 cdb = (struct scsi_get_config *)ctsio->cdb; 10350 rt = (cdb->rt & SGC_RT_MASK); 10351 starting = scsi_2btoul(cdb->starting_feature); 10352 alloc_len = scsi_2btoul(cdb->length); 10353 10354 data_len = sizeof(struct scsi_get_config_header) + 10355 sizeof(struct scsi_get_config_feature) + 8 + 10356 sizeof(struct scsi_get_config_feature) + 8 + 10357 sizeof(struct scsi_get_config_feature) + 4 + 10358 sizeof(struct scsi_get_config_feature) + 4 + 10359 sizeof(struct scsi_get_config_feature) + 8 + 10360 sizeof(struct scsi_get_config_feature) + 10361 sizeof(struct scsi_get_config_feature) + 4 + 10362 sizeof(struct scsi_get_config_feature) + 4 + 10363 sizeof(struct scsi_get_config_feature) + 4 + 10364 sizeof(struct scsi_get_config_feature) + 4 + 10365 sizeof(struct scsi_get_config_feature) + 4 + 10366 sizeof(struct scsi_get_config_feature) + 4; 10367 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 10368 ctsio->kern_sg_entries = 0; 10369 ctsio->kern_data_resid = 0; 10370 ctsio->kern_rel_offset = 0; 10371 10372 hdr = (struct scsi_get_config_header *)ctsio->kern_data_ptr; 10373 if (lun->flags & CTL_LUN_NO_MEDIA) 10374 scsi_ulto2b(0x0000, hdr->current_profile); 10375 else 10376 scsi_ulto2b(0x0010, hdr->current_profile); 10377 feature = (struct scsi_get_config_feature *)(hdr + 1); 10378 10379 if (starting > 0x003b) 10380 goto done; 10381 if (starting > 0x003a) 10382 goto f3b; 10383 if (starting > 0x002b) 10384 goto f3a; 10385 if (starting > 0x002a) 10386 goto f2b; 10387 if (starting > 0x001f) 10388 goto f2a; 10389 if (starting > 0x001e) 10390 goto f1f; 10391 if (starting > 0x001d) 10392 goto f1e; 10393 if (starting > 0x0010) 10394 goto f1d; 10395 if (starting > 0x0003) 10396 goto f10; 10397 if (starting > 0x0002) 10398 goto f3; 10399 if (starting > 0x0001) 10400 goto f2; 10401 if (starting > 0x0000) 10402 goto f1; 10403 10404 /* Profile List */ 10405 scsi_ulto2b(0x0000, feature->feature_code); 10406 feature->flags = SGC_F_PERSISTENT | SGC_F_CURRENT; 10407 feature->add_length = 8; 10408 scsi_ulto2b(0x0008, &feature->feature_data[0]); /* CD-ROM */ 10409 feature->feature_data[2] = 0x00; 10410 scsi_ulto2b(0x0010, &feature->feature_data[4]); /* DVD-ROM */ 10411 feature->feature_data[6] = 0x01; 10412 feature = (struct scsi_get_config_feature *) 10413 &feature->feature_data[feature->add_length]; 10414 10415f1: /* Core */ 10416 scsi_ulto2b(0x0001, feature->feature_code); 10417 feature->flags = 0x08 | SGC_F_PERSISTENT | SGC_F_CURRENT; 10418 feature->add_length = 8; 10419 scsi_ulto4b(0x00000000, &feature->feature_data[0]); 10420 feature->feature_data[4] = 0x03; 10421 feature = (struct scsi_get_config_feature *) 10422 &feature->feature_data[feature->add_length]; 10423 10424f2: /* Morphing */ 10425 scsi_ulto2b(0x0002, feature->feature_code); 10426 feature->flags = 0x04 | SGC_F_PERSISTENT | SGC_F_CURRENT; 10427 feature->add_length = 4; 10428 feature->feature_data[0] = 0x02; 10429 feature = (struct scsi_get_config_feature *) 10430 &feature->feature_data[feature->add_length]; 10431 10432f3: /* Removable Medium */ 10433 scsi_ulto2b(0x0003, feature->feature_code); 10434 feature->flags = 0x04 | SGC_F_PERSISTENT | SGC_F_CURRENT; 10435 feature->add_length = 4; 10436 feature->feature_data[0] = 0x39; 10437 feature = (struct scsi_get_config_feature *) 10438 &feature->feature_data[feature->add_length]; 10439 10440 if (rt == SGC_RT_CURRENT && (lun->flags & CTL_LUN_NO_MEDIA)) 10441 goto done; 10442 10443f10: /* Random Read */ 10444 scsi_ulto2b(0x0010, feature->feature_code); 10445 feature->flags = 0x00; 10446 if ((lun->flags & CTL_LUN_NO_MEDIA) == 0) 10447 feature->flags |= SGC_F_CURRENT; 10448 feature->add_length = 8; 10449 scsi_ulto4b(lun->be_lun->blocksize, &feature->feature_data[0]); 10450 scsi_ulto2b(1, &feature->feature_data[4]); 10451 feature->feature_data[6] = 0x00; 10452 feature = (struct scsi_get_config_feature *) 10453 &feature->feature_data[feature->add_length]; 10454 10455f1d: /* Multi-Read */ 10456 scsi_ulto2b(0x001D, feature->feature_code); 10457 feature->flags = 0x00; 10458 if ((lun->flags & CTL_LUN_NO_MEDIA) == 0) 10459 feature->flags |= SGC_F_CURRENT; 10460 feature->add_length = 0; 10461 feature = (struct scsi_get_config_feature *) 10462 &feature->feature_data[feature->add_length]; 10463 10464f1e: /* CD Read */ 10465 scsi_ulto2b(0x001E, feature->feature_code); 10466 feature->flags = 0x00; 10467 if ((lun->flags & CTL_LUN_NO_MEDIA) == 0) 10468 feature->flags |= SGC_F_CURRENT; 10469 feature->add_length = 4; 10470 feature->feature_data[0] = 0x00; 10471 feature = (struct scsi_get_config_feature *) 10472 &feature->feature_data[feature->add_length]; 10473 10474f1f: /* DVD Read */ 10475 scsi_ulto2b(0x001F, feature->feature_code); 10476 feature->flags = 0x08; 10477 if ((lun->flags & CTL_LUN_NO_MEDIA) == 0) 10478 feature->flags |= SGC_F_CURRENT; 10479 feature->add_length = 4; 10480 feature->feature_data[0] = 0x01; 10481 feature->feature_data[2] = 0x03; 10482 feature = (struct scsi_get_config_feature *) 10483 &feature->feature_data[feature->add_length]; 10484 10485f2a: /* DVD+RW */ 10486 scsi_ulto2b(0x002A, feature->feature_code); 10487 feature->flags = 0x04; 10488 if ((lun->flags & CTL_LUN_NO_MEDIA) == 0) 10489 feature->flags |= SGC_F_CURRENT; 10490 feature->add_length = 4; 10491 feature->feature_data[0] = 0x00; 10492 feature->feature_data[1] = 0x00; 10493 feature = (struct scsi_get_config_feature *) 10494 &feature->feature_data[feature->add_length]; 10495 10496f2b: /* DVD+R */ 10497 scsi_ulto2b(0x002B, feature->feature_code); 10498 feature->flags = 0x00; 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] = 0x00; 10503 feature = (struct scsi_get_config_feature *) 10504 &feature->feature_data[feature->add_length]; 10505 10506f3a: /* DVD+RW Dual Layer */ 10507 scsi_ulto2b(0x003A, feature->feature_code); 10508 feature->flags = 0x00; 10509 if ((lun->flags & CTL_LUN_NO_MEDIA) == 0) 10510 feature->flags |= SGC_F_CURRENT; 10511 feature->add_length = 4; 10512 feature->feature_data[0] = 0x00; 10513 feature->feature_data[1] = 0x00; 10514 feature = (struct scsi_get_config_feature *) 10515 &feature->feature_data[feature->add_length]; 10516 10517f3b: /* DVD+R Dual Layer */ 10518 scsi_ulto2b(0x003B, feature->feature_code); 10519 feature->flags = 0x00; 10520 if ((lun->flags & CTL_LUN_NO_MEDIA) == 0) 10521 feature->flags |= SGC_F_CURRENT; 10522 feature->add_length = 4; 10523 feature->feature_data[0] = 0x00; 10524 feature = (struct scsi_get_config_feature *) 10525 &feature->feature_data[feature->add_length]; 10526 10527done: 10528 data_len = (uint8_t *)feature - (uint8_t *)hdr; 10529 if (rt == SGC_RT_SPECIFIC && data_len > 4) { 10530 feature = (struct scsi_get_config_feature *)(hdr + 1); 10531 if (scsi_2btoul(feature->feature_code) == starting) 10532 feature = (struct scsi_get_config_feature *) 10533 &feature->feature_data[feature->add_length]; 10534 data_len = (uint8_t *)feature - (uint8_t *)hdr; 10535 } 10536 scsi_ulto4b(data_len - 4, hdr->data_length); 10537 if (data_len < alloc_len) { 10538 ctsio->residual = alloc_len - data_len; 10539 ctsio->kern_data_len = data_len; 10540 ctsio->kern_total_len = data_len; 10541 } else { 10542 ctsio->residual = 0; 10543 ctsio->kern_data_len = alloc_len; 10544 ctsio->kern_total_len = alloc_len; 10545 } 10546 10547 ctl_set_success(ctsio); 10548 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10549 ctsio->be_move_done = ctl_config_move_done; 10550 ctl_datamove((union ctl_io *)ctsio); 10551 return (CTL_RETVAL_COMPLETE); 10552} 10553 10554int 10555ctl_get_event_status(struct ctl_scsiio *ctsio) 10556{ 10557 struct scsi_get_event_status_header *hdr; 10558 struct scsi_get_event_status *cdb; 10559 struct ctl_lun *lun; 10560 uint32_t alloc_len, data_len; 10561 int notif_class; 10562 10563 lun = ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10564 cdb = (struct scsi_get_event_status *)ctsio->cdb; 10565 if ((cdb->byte2 & SGESN_POLLED) == 0) { 10566 ctl_set_invalid_field(ctsio, /*sks_valid*/ 1, /*command*/ 1, 10567 /*field*/ 1, /*bit_valid*/ 1, /*bit*/ 0); 10568 ctl_done((union ctl_io *)ctsio); 10569 return (CTL_RETVAL_COMPLETE); 10570 } 10571 notif_class = cdb->notif_class; 10572 alloc_len = scsi_2btoul(cdb->length); 10573 10574 data_len = sizeof(struct scsi_get_event_status_header); 10575 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 10576 ctsio->kern_sg_entries = 0; 10577 ctsio->kern_data_resid = 0; 10578 ctsio->kern_rel_offset = 0; 10579 10580 if (data_len < alloc_len) { 10581 ctsio->residual = alloc_len - data_len; 10582 ctsio->kern_data_len = data_len; 10583 ctsio->kern_total_len = data_len; 10584 } else { 10585 ctsio->residual = 0; 10586 ctsio->kern_data_len = alloc_len; 10587 ctsio->kern_total_len = alloc_len; 10588 } 10589 10590 hdr = (struct scsi_get_event_status_header *)ctsio->kern_data_ptr; 10591 scsi_ulto2b(0, hdr->descr_length); 10592 hdr->nea_class = SGESN_NEA; 10593 hdr->supported_class = 0; 10594 10595 ctl_set_success(ctsio); 10596 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10597 ctsio->be_move_done = ctl_config_move_done; 10598 ctl_datamove((union ctl_io *)ctsio); 10599 return (CTL_RETVAL_COMPLETE); 10600} 10601 10602int 10603ctl_mechanism_status(struct ctl_scsiio *ctsio) 10604{ 10605 struct scsi_mechanism_status_header *hdr; 10606 struct scsi_mechanism_status *cdb; 10607 struct ctl_lun *lun; 10608 uint32_t alloc_len, data_len; 10609 10610 lun = ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10611 cdb = (struct scsi_mechanism_status *)ctsio->cdb; 10612 alloc_len = scsi_2btoul(cdb->length); 10613 10614 data_len = sizeof(struct scsi_mechanism_status_header); 10615 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 10616 ctsio->kern_sg_entries = 0; 10617 ctsio->kern_data_resid = 0; 10618 ctsio->kern_rel_offset = 0; 10619 10620 if (data_len < alloc_len) { 10621 ctsio->residual = alloc_len - data_len; 10622 ctsio->kern_data_len = data_len; 10623 ctsio->kern_total_len = data_len; 10624 } else { 10625 ctsio->residual = 0; 10626 ctsio->kern_data_len = alloc_len; 10627 ctsio->kern_total_len = alloc_len; 10628 } 10629 10630 hdr = (struct scsi_mechanism_status_header *)ctsio->kern_data_ptr; 10631 hdr->state1 = 0x00; 10632 hdr->state2 = 0xe0; 10633 scsi_ulto3b(0, hdr->lba); 10634 hdr->slots_num = 0; 10635 scsi_ulto2b(0, hdr->slots_length); 10636 10637 ctl_set_success(ctsio); 10638 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10639 ctsio->be_move_done = ctl_config_move_done; 10640 ctl_datamove((union ctl_io *)ctsio); 10641 return (CTL_RETVAL_COMPLETE); 10642} 10643 10644static void 10645ctl_ultomsf(uint32_t lba, uint8_t *buf) 10646{ 10647 10648 lba += 150; 10649 buf[0] = 0; 10650 buf[1] = bin2bcd((lba / 75) / 60); 10651 buf[2] = bin2bcd((lba / 75) % 60); 10652 buf[3] = bin2bcd(lba % 75); 10653} 10654 10655int 10656ctl_read_toc(struct ctl_scsiio *ctsio) 10657{ 10658 struct scsi_read_toc_hdr *hdr; 10659 struct scsi_read_toc_type01_descr *descr; 10660 struct scsi_read_toc *cdb; 10661 struct ctl_lun *lun; 10662 uint32_t alloc_len, data_len; 10663 int format, msf; 10664 10665 lun = ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10666 cdb = (struct scsi_read_toc *)ctsio->cdb; 10667 msf = (cdb->byte2 & CD_MSF) != 0; 10668 format = cdb->format; 10669 alloc_len = scsi_2btoul(cdb->data_len); 10670 10671 data_len = sizeof(struct scsi_read_toc_hdr); 10672 if (format == 0) 10673 data_len += 2 * sizeof(struct scsi_read_toc_type01_descr); 10674 else 10675 data_len += sizeof(struct scsi_read_toc_type01_descr); 10676 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 10677 ctsio->kern_sg_entries = 0; 10678 ctsio->kern_data_resid = 0; 10679 ctsio->kern_rel_offset = 0; 10680 10681 if (data_len < alloc_len) { 10682 ctsio->residual = alloc_len - data_len; 10683 ctsio->kern_data_len = data_len; 10684 ctsio->kern_total_len = data_len; 10685 } else { 10686 ctsio->residual = 0; 10687 ctsio->kern_data_len = alloc_len; 10688 ctsio->kern_total_len = alloc_len; 10689 } 10690 10691 hdr = (struct scsi_read_toc_hdr *)ctsio->kern_data_ptr; 10692 if (format == 0) { 10693 scsi_ulto2b(0x12, hdr->data_length); 10694 hdr->first = 1; 10695 hdr->last = 1; 10696 descr = (struct scsi_read_toc_type01_descr *)(hdr + 1); 10697 descr->addr_ctl = 0x14; 10698 descr->track_number = 1; 10699 if (msf) 10700 ctl_ultomsf(0, descr->track_start); 10701 else 10702 scsi_ulto4b(0, descr->track_start); 10703 descr++; 10704 descr->addr_ctl = 0x14; 10705 descr->track_number = 0xaa; 10706 if (msf) 10707 ctl_ultomsf(lun->be_lun->maxlba+1, descr->track_start); 10708 else 10709 scsi_ulto4b(lun->be_lun->maxlba+1, descr->track_start); 10710 } else { 10711 scsi_ulto2b(0x0a, hdr->data_length); 10712 hdr->first = 1; 10713 hdr->last = 1; 10714 descr = (struct scsi_read_toc_type01_descr *)(hdr + 1); 10715 descr->addr_ctl = 0x14; 10716 descr->track_number = 1; 10717 if (msf) 10718 ctl_ultomsf(0, descr->track_start); 10719 else 10720 scsi_ulto4b(0, descr->track_start); 10721 } 10722 10723 ctl_set_success(ctsio); 10724 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10725 ctsio->be_move_done = ctl_config_move_done; 10726 ctl_datamove((union ctl_io *)ctsio); 10727 return (CTL_RETVAL_COMPLETE); 10728} 10729 10730/* 10731 * For known CDB types, parse the LBA and length. 10732 */ 10733static int 10734ctl_get_lba_len(union ctl_io *io, uint64_t *lba, uint64_t *len) 10735{ 10736 if (io->io_hdr.io_type != CTL_IO_SCSI) 10737 return (1); 10738 10739 switch (io->scsiio.cdb[0]) { 10740 case COMPARE_AND_WRITE: { 10741 struct scsi_compare_and_write *cdb; 10742 10743 cdb = (struct scsi_compare_and_write *)io->scsiio.cdb; 10744 10745 *lba = scsi_8btou64(cdb->addr); 10746 *len = cdb->length; 10747 break; 10748 } 10749 case READ_6: 10750 case WRITE_6: { 10751 struct scsi_rw_6 *cdb; 10752 10753 cdb = (struct scsi_rw_6 *)io->scsiio.cdb; 10754 10755 *lba = scsi_3btoul(cdb->addr); 10756 /* only 5 bits are valid in the most significant address byte */ 10757 *lba &= 0x1fffff; 10758 *len = cdb->length; 10759 break; 10760 } 10761 case READ_10: 10762 case WRITE_10: { 10763 struct scsi_rw_10 *cdb; 10764 10765 cdb = (struct scsi_rw_10 *)io->scsiio.cdb; 10766 10767 *lba = scsi_4btoul(cdb->addr); 10768 *len = scsi_2btoul(cdb->length); 10769 break; 10770 } 10771 case WRITE_VERIFY_10: { 10772 struct scsi_write_verify_10 *cdb; 10773 10774 cdb = (struct scsi_write_verify_10 *)io->scsiio.cdb; 10775 10776 *lba = scsi_4btoul(cdb->addr); 10777 *len = scsi_2btoul(cdb->length); 10778 break; 10779 } 10780 case READ_12: 10781 case WRITE_12: { 10782 struct scsi_rw_12 *cdb; 10783 10784 cdb = (struct scsi_rw_12 *)io->scsiio.cdb; 10785 10786 *lba = scsi_4btoul(cdb->addr); 10787 *len = scsi_4btoul(cdb->length); 10788 break; 10789 } 10790 case WRITE_VERIFY_12: { 10791 struct scsi_write_verify_12 *cdb; 10792 10793 cdb = (struct scsi_write_verify_12 *)io->scsiio.cdb; 10794 10795 *lba = scsi_4btoul(cdb->addr); 10796 *len = scsi_4btoul(cdb->length); 10797 break; 10798 } 10799 case READ_16: 10800 case WRITE_16: { 10801 struct scsi_rw_16 *cdb; 10802 10803 cdb = (struct scsi_rw_16 *)io->scsiio.cdb; 10804 10805 *lba = scsi_8btou64(cdb->addr); 10806 *len = scsi_4btoul(cdb->length); 10807 break; 10808 } 10809 case WRITE_ATOMIC_16: { 10810 struct scsi_write_atomic_16 *cdb; 10811 10812 cdb = (struct scsi_write_atomic_16 *)io->scsiio.cdb; 10813 10814 *lba = scsi_8btou64(cdb->addr); 10815 *len = scsi_2btoul(cdb->length); 10816 break; 10817 } 10818 case WRITE_VERIFY_16: { 10819 struct scsi_write_verify_16 *cdb; 10820 10821 cdb = (struct scsi_write_verify_16 *)io->scsiio.cdb; 10822 10823 *lba = scsi_8btou64(cdb->addr); 10824 *len = scsi_4btoul(cdb->length); 10825 break; 10826 } 10827 case WRITE_SAME_10: { 10828 struct scsi_write_same_10 *cdb; 10829 10830 cdb = (struct scsi_write_same_10 *)io->scsiio.cdb; 10831 10832 *lba = scsi_4btoul(cdb->addr); 10833 *len = scsi_2btoul(cdb->length); 10834 break; 10835 } 10836 case WRITE_SAME_16: { 10837 struct scsi_write_same_16 *cdb; 10838 10839 cdb = (struct scsi_write_same_16 *)io->scsiio.cdb; 10840 10841 *lba = scsi_8btou64(cdb->addr); 10842 *len = scsi_4btoul(cdb->length); 10843 break; 10844 } 10845 case VERIFY_10: { 10846 struct scsi_verify_10 *cdb; 10847 10848 cdb = (struct scsi_verify_10 *)io->scsiio.cdb; 10849 10850 *lba = scsi_4btoul(cdb->addr); 10851 *len = scsi_2btoul(cdb->length); 10852 break; 10853 } 10854 case VERIFY_12: { 10855 struct scsi_verify_12 *cdb; 10856 10857 cdb = (struct scsi_verify_12 *)io->scsiio.cdb; 10858 10859 *lba = scsi_4btoul(cdb->addr); 10860 *len = scsi_4btoul(cdb->length); 10861 break; 10862 } 10863 case VERIFY_16: { 10864 struct scsi_verify_16 *cdb; 10865 10866 cdb = (struct scsi_verify_16 *)io->scsiio.cdb; 10867 10868 *lba = scsi_8btou64(cdb->addr); 10869 *len = scsi_4btoul(cdb->length); 10870 break; 10871 } 10872 case UNMAP: { 10873 *lba = 0; 10874 *len = UINT64_MAX; 10875 break; 10876 } 10877 case SERVICE_ACTION_IN: { /* GET LBA STATUS */ 10878 struct scsi_get_lba_status *cdb; 10879 10880 cdb = (struct scsi_get_lba_status *)io->scsiio.cdb; 10881 *lba = scsi_8btou64(cdb->addr); 10882 *len = UINT32_MAX; 10883 break; 10884 } 10885 default: 10886 return (1); 10887 break; /* NOTREACHED */ 10888 } 10889 10890 return (0); 10891} 10892 10893static ctl_action 10894ctl_extent_check_lba(uint64_t lba1, uint64_t len1, uint64_t lba2, uint64_t len2, 10895 bool seq) 10896{ 10897 uint64_t endlba1, endlba2; 10898 10899 endlba1 = lba1 + len1 - (seq ? 0 : 1); 10900 endlba2 = lba2 + len2 - 1; 10901 10902 if ((endlba1 < lba2) || (endlba2 < lba1)) 10903 return (CTL_ACTION_PASS); 10904 else 10905 return (CTL_ACTION_BLOCK); 10906} 10907 10908static int 10909ctl_extent_check_unmap(union ctl_io *io, uint64_t lba2, uint64_t len2) 10910{ 10911 struct ctl_ptr_len_flags *ptrlen; 10912 struct scsi_unmap_desc *buf, *end, *range; 10913 uint64_t lba; 10914 uint32_t len; 10915 10916 /* If not UNMAP -- go other way. */ 10917 if (io->io_hdr.io_type != CTL_IO_SCSI || 10918 io->scsiio.cdb[0] != UNMAP) 10919 return (CTL_ACTION_ERROR); 10920 10921 /* If UNMAP without data -- block and wait for data. */ 10922 ptrlen = (struct ctl_ptr_len_flags *) 10923 &io->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 10924 if ((io->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0 || 10925 ptrlen->ptr == NULL) 10926 return (CTL_ACTION_BLOCK); 10927 10928 /* UNMAP with data -- check for collision. */ 10929 buf = (struct scsi_unmap_desc *)ptrlen->ptr; 10930 end = buf + ptrlen->len / sizeof(*buf); 10931 for (range = buf; range < end; range++) { 10932 lba = scsi_8btou64(range->lba); 10933 len = scsi_4btoul(range->length); 10934 if ((lba < lba2 + len2) && (lba + len > lba2)) 10935 return (CTL_ACTION_BLOCK); 10936 } 10937 return (CTL_ACTION_PASS); 10938} 10939 10940static ctl_action 10941ctl_extent_check(union ctl_io *io1, union ctl_io *io2, bool seq) 10942{ 10943 uint64_t lba1, lba2; 10944 uint64_t len1, len2; 10945 int retval; 10946 10947 if (ctl_get_lba_len(io2, &lba2, &len2) != 0) 10948 return (CTL_ACTION_ERROR); 10949 10950 retval = ctl_extent_check_unmap(io1, lba2, len2); 10951 if (retval != CTL_ACTION_ERROR) 10952 return (retval); 10953 10954 if (ctl_get_lba_len(io1, &lba1, &len1) != 0) 10955 return (CTL_ACTION_ERROR); 10956 10957 if (io1->io_hdr.flags & CTL_FLAG_SERSEQ_DONE) 10958 seq = FALSE; 10959 return (ctl_extent_check_lba(lba1, len1, lba2, len2, seq)); 10960} 10961 10962static ctl_action 10963ctl_extent_check_seq(union ctl_io *io1, union ctl_io *io2) 10964{ 10965 uint64_t lba1, lba2; 10966 uint64_t len1, len2; 10967 10968 if (io1->io_hdr.flags & CTL_FLAG_SERSEQ_DONE) 10969 return (CTL_ACTION_PASS); 10970 if (ctl_get_lba_len(io1, &lba1, &len1) != 0) 10971 return (CTL_ACTION_ERROR); 10972 if (ctl_get_lba_len(io2, &lba2, &len2) != 0) 10973 return (CTL_ACTION_ERROR); 10974 10975 if (lba1 + len1 == lba2) 10976 return (CTL_ACTION_BLOCK); 10977 return (CTL_ACTION_PASS); 10978} 10979 10980static ctl_action 10981ctl_check_for_blockage(struct ctl_lun *lun, union ctl_io *pending_io, 10982 union ctl_io *ooa_io) 10983{ 10984 const struct ctl_cmd_entry *pending_entry, *ooa_entry; 10985 const ctl_serialize_action *serialize_row; 10986 10987 /* 10988 * The initiator attempted multiple untagged commands at the same 10989 * time. Can't do that. 10990 */ 10991 if ((pending_io->scsiio.tag_type == CTL_TAG_UNTAGGED) 10992 && (ooa_io->scsiio.tag_type == CTL_TAG_UNTAGGED) 10993 && ((pending_io->io_hdr.nexus.targ_port == 10994 ooa_io->io_hdr.nexus.targ_port) 10995 && (pending_io->io_hdr.nexus.initid == 10996 ooa_io->io_hdr.nexus.initid)) 10997 && ((ooa_io->io_hdr.flags & (CTL_FLAG_ABORT | 10998 CTL_FLAG_STATUS_SENT)) == 0)) 10999 return (CTL_ACTION_OVERLAP); 11000 11001 /* 11002 * The initiator attempted to send multiple tagged commands with 11003 * the same ID. (It's fine if different initiators have the same 11004 * tag ID.) 11005 * 11006 * Even if all of those conditions are true, we don't kill the I/O 11007 * if the command ahead of us has been aborted. We won't end up 11008 * sending it to the FETD, and it's perfectly legal to resend a 11009 * command with the same tag number as long as the previous 11010 * instance of this tag number has been aborted somehow. 11011 */ 11012 if ((pending_io->scsiio.tag_type != CTL_TAG_UNTAGGED) 11013 && (ooa_io->scsiio.tag_type != CTL_TAG_UNTAGGED) 11014 && (pending_io->scsiio.tag_num == ooa_io->scsiio.tag_num) 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_TAG); 11022 11023 /* 11024 * If we get a head of queue tag, SAM-3 says that we should 11025 * immediately execute it. 11026 * 11027 * What happens if this command would normally block for some other 11028 * reason? e.g. a request sense with a head of queue tag 11029 * immediately after a write. Normally that would block, but this 11030 * will result in its getting executed immediately... 11031 * 11032 * We currently return "pass" instead of "skip", so we'll end up 11033 * going through the rest of the queue to check for overlapped tags. 11034 * 11035 * XXX KDM check for other types of blockage first?? 11036 */ 11037 if (pending_io->scsiio.tag_type == CTL_TAG_HEAD_OF_QUEUE) 11038 return (CTL_ACTION_PASS); 11039 11040 /* 11041 * Ordered tags have to block until all items ahead of them 11042 * have completed. If we get called with an ordered tag, we always 11043 * block, if something else is ahead of us in the queue. 11044 */ 11045 if (pending_io->scsiio.tag_type == CTL_TAG_ORDERED) 11046 return (CTL_ACTION_BLOCK); 11047 11048 /* 11049 * Simple tags get blocked until all head of queue and ordered tags 11050 * ahead of them have completed. I'm lumping untagged commands in 11051 * with simple tags here. XXX KDM is that the right thing to do? 11052 */ 11053 if (((pending_io->scsiio.tag_type == CTL_TAG_UNTAGGED) 11054 || (pending_io->scsiio.tag_type == CTL_TAG_SIMPLE)) 11055 && ((ooa_io->scsiio.tag_type == CTL_TAG_HEAD_OF_QUEUE) 11056 || (ooa_io->scsiio.tag_type == CTL_TAG_ORDERED))) 11057 return (CTL_ACTION_BLOCK); 11058 11059 pending_entry = ctl_get_cmd_entry(&pending_io->scsiio, NULL); 11060 KASSERT(pending_entry->seridx < CTL_SERIDX_COUNT, 11061 ("%s: Invalid seridx %d for pending CDB %02x %02x @ %p", 11062 __func__, pending_entry->seridx, pending_io->scsiio.cdb[0], 11063 pending_io->scsiio.cdb[1], pending_io)); 11064 ooa_entry = ctl_get_cmd_entry(&ooa_io->scsiio, NULL); 11065 if (ooa_entry->seridx == CTL_SERIDX_INVLD) 11066 return (CTL_ACTION_PASS); /* Unsupported command in OOA queue */ 11067 KASSERT(ooa_entry->seridx < CTL_SERIDX_COUNT, 11068 ("%s: Invalid seridx %d for ooa CDB %02x %02x @ %p", 11069 __func__, ooa_entry->seridx, ooa_io->scsiio.cdb[0], 11070 ooa_io->scsiio.cdb[1], ooa_io)); 11071 11072 serialize_row = ctl_serialize_table[ooa_entry->seridx]; 11073 11074 switch (serialize_row[pending_entry->seridx]) { 11075 case CTL_SER_BLOCK: 11076 return (CTL_ACTION_BLOCK); 11077 case CTL_SER_EXTENT: 11078 return (ctl_extent_check(ooa_io, pending_io, 11079 (lun->be_lun && lun->be_lun->serseq == CTL_LUN_SERSEQ_ON))); 11080 case CTL_SER_EXTENTOPT: 11081 if ((lun->MODE_CTRL.queue_flags & SCP_QUEUE_ALG_MASK) != 11082 SCP_QUEUE_ALG_UNRESTRICTED) 11083 return (ctl_extent_check(ooa_io, pending_io, 11084 (lun->be_lun && 11085 lun->be_lun->serseq == CTL_LUN_SERSEQ_ON))); 11086 return (CTL_ACTION_PASS); 11087 case CTL_SER_EXTENTSEQ: 11088 if (lun->be_lun && lun->be_lun->serseq != CTL_LUN_SERSEQ_OFF) 11089 return (ctl_extent_check_seq(ooa_io, pending_io)); 11090 return (CTL_ACTION_PASS); 11091 case CTL_SER_PASS: 11092 return (CTL_ACTION_PASS); 11093 case CTL_SER_BLOCKOPT: 11094 if ((lun->MODE_CTRL.queue_flags & SCP_QUEUE_ALG_MASK) != 11095 SCP_QUEUE_ALG_UNRESTRICTED) 11096 return (CTL_ACTION_BLOCK); 11097 return (CTL_ACTION_PASS); 11098 case CTL_SER_SKIP: 11099 return (CTL_ACTION_SKIP); 11100 default: 11101 panic("%s: Invalid serialization value %d for %d => %d", 11102 __func__, serialize_row[pending_entry->seridx], 11103 pending_entry->seridx, ooa_entry->seridx); 11104 } 11105 11106 return (CTL_ACTION_ERROR); 11107} 11108 11109/* 11110 * Check for blockage or overlaps against the OOA (Order Of Arrival) queue. 11111 * Assumptions: 11112 * - pending_io is generally either incoming, or on the blocked queue 11113 * - starting I/O is the I/O we want to start the check with. 11114 */ 11115static ctl_action 11116ctl_check_ooa(struct ctl_lun *lun, union ctl_io *pending_io, 11117 union ctl_io *starting_io) 11118{ 11119 union ctl_io *ooa_io; 11120 ctl_action action; 11121 11122 mtx_assert(&lun->lun_lock, MA_OWNED); 11123 11124 /* 11125 * Run back along the OOA queue, starting with the current 11126 * blocked I/O and going through every I/O before it on the 11127 * queue. If starting_io is NULL, we'll just end up returning 11128 * CTL_ACTION_PASS. 11129 */ 11130 for (ooa_io = starting_io; ooa_io != NULL; 11131 ooa_io = (union ctl_io *)TAILQ_PREV(&ooa_io->io_hdr, ctl_ooaq, 11132 ooa_links)){ 11133 11134 /* 11135 * This routine just checks to see whether 11136 * cur_blocked is blocked by ooa_io, which is ahead 11137 * of it in the queue. It doesn't queue/dequeue 11138 * cur_blocked. 11139 */ 11140 action = ctl_check_for_blockage(lun, pending_io, ooa_io); 11141 switch (action) { 11142 case CTL_ACTION_BLOCK: 11143 case CTL_ACTION_OVERLAP: 11144 case CTL_ACTION_OVERLAP_TAG: 11145 case CTL_ACTION_SKIP: 11146 case CTL_ACTION_ERROR: 11147 return (action); 11148 break; /* NOTREACHED */ 11149 case CTL_ACTION_PASS: 11150 break; 11151 default: 11152 panic("%s: Invalid action %d\n", __func__, action); 11153 } 11154 } 11155 11156 return (CTL_ACTION_PASS); 11157} 11158 11159/* 11160 * Assumptions: 11161 * - An I/O has just completed, and has been removed from the per-LUN OOA 11162 * queue, so some items on the blocked queue may now be unblocked. 11163 */ 11164static int 11165ctl_check_blocked(struct ctl_lun *lun) 11166{ 11167 struct ctl_softc *softc = lun->ctl_softc; 11168 union ctl_io *cur_blocked, *next_blocked; 11169 11170 mtx_assert(&lun->lun_lock, MA_OWNED); 11171 11172 /* 11173 * Run forward from the head of the blocked queue, checking each 11174 * entry against the I/Os prior to it on the OOA queue to see if 11175 * there is still any blockage. 11176 * 11177 * We cannot use the TAILQ_FOREACH() macro, because it can't deal 11178 * with our removing a variable on it while it is traversing the 11179 * list. 11180 */ 11181 for (cur_blocked = (union ctl_io *)TAILQ_FIRST(&lun->blocked_queue); 11182 cur_blocked != NULL; cur_blocked = next_blocked) { 11183 union ctl_io *prev_ooa; 11184 ctl_action action; 11185 11186 next_blocked = (union ctl_io *)TAILQ_NEXT(&cur_blocked->io_hdr, 11187 blocked_links); 11188 11189 prev_ooa = (union ctl_io *)TAILQ_PREV(&cur_blocked->io_hdr, 11190 ctl_ooaq, ooa_links); 11191 11192 /* 11193 * If cur_blocked happens to be the first item in the OOA 11194 * queue now, prev_ooa will be NULL, and the action 11195 * returned will just be CTL_ACTION_PASS. 11196 */ 11197 action = ctl_check_ooa(lun, cur_blocked, prev_ooa); 11198 11199 switch (action) { 11200 case CTL_ACTION_BLOCK: 11201 /* Nothing to do here, still blocked */ 11202 break; 11203 case CTL_ACTION_OVERLAP: 11204 case CTL_ACTION_OVERLAP_TAG: 11205 /* 11206 * This shouldn't happen! In theory we've already 11207 * checked this command for overlap... 11208 */ 11209 break; 11210 case CTL_ACTION_PASS: 11211 case CTL_ACTION_SKIP: { 11212 const struct ctl_cmd_entry *entry; 11213 11214 /* 11215 * The skip case shouldn't happen, this transaction 11216 * should have never made it onto the blocked queue. 11217 */ 11218 /* 11219 * This I/O is no longer blocked, we can remove it 11220 * from the blocked queue. Since this is a TAILQ 11221 * (doubly linked list), we can do O(1) removals 11222 * from any place on the list. 11223 */ 11224 TAILQ_REMOVE(&lun->blocked_queue, &cur_blocked->io_hdr, 11225 blocked_links); 11226 cur_blocked->io_hdr.flags &= ~CTL_FLAG_BLOCKED; 11227 11228 if ((softc->ha_mode != CTL_HA_MODE_XFER) && 11229 (cur_blocked->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)){ 11230 /* 11231 * Need to send IO back to original side to 11232 * run 11233 */ 11234 union ctl_ha_msg msg_info; 11235 11236 cur_blocked->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 11237 msg_info.hdr.original_sc = 11238 cur_blocked->io_hdr.original_sc; 11239 msg_info.hdr.serializing_sc = cur_blocked; 11240 msg_info.hdr.msg_type = CTL_MSG_R2R; 11241 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 11242 sizeof(msg_info.hdr), M_NOWAIT); 11243 break; 11244 } 11245 entry = ctl_get_cmd_entry(&cur_blocked->scsiio, NULL); 11246 11247 /* 11248 * Check this I/O for LUN state changes that may 11249 * have happened while this command was blocked. 11250 * The LUN state may have been changed by a command 11251 * ahead of us in the queue, so we need to re-check 11252 * for any states that can be caused by SCSI 11253 * commands. 11254 */ 11255 if (ctl_scsiio_lun_check(lun, entry, 11256 &cur_blocked->scsiio) == 0) { 11257 cur_blocked->io_hdr.flags |= 11258 CTL_FLAG_IS_WAS_ON_RTR; 11259 ctl_enqueue_rtr(cur_blocked); 11260 } else 11261 ctl_done(cur_blocked); 11262 break; 11263 } 11264 default: 11265 /* 11266 * This probably shouldn't happen -- we shouldn't 11267 * get CTL_ACTION_ERROR, or anything else. 11268 */ 11269 break; 11270 } 11271 } 11272 11273 return (CTL_RETVAL_COMPLETE); 11274} 11275 11276/* 11277 * This routine (with one exception) checks LUN flags that can be set by 11278 * commands ahead of us in the OOA queue. These flags have to be checked 11279 * when a command initially comes in, and when we pull a command off the 11280 * blocked queue and are preparing to execute it. The reason we have to 11281 * check these flags for commands on the blocked queue is that the LUN 11282 * state may have been changed by a command ahead of us while we're on the 11283 * blocked queue. 11284 * 11285 * Ordering is somewhat important with these checks, so please pay 11286 * careful attention to the placement of any new checks. 11287 */ 11288static int 11289ctl_scsiio_lun_check(struct ctl_lun *lun, 11290 const struct ctl_cmd_entry *entry, struct ctl_scsiio *ctsio) 11291{ 11292 struct ctl_softc *softc = lun->ctl_softc; 11293 int retval; 11294 uint32_t residx; 11295 11296 retval = 0; 11297 11298 mtx_assert(&lun->lun_lock, MA_OWNED); 11299 11300 /* 11301 * If this shelf is a secondary shelf controller, we may have to 11302 * reject some commands disallowed by HA mode and link state. 11303 */ 11304 if ((lun->flags & CTL_LUN_PRIMARY_SC) == 0) { 11305 if (softc->ha_link == CTL_HA_LINK_OFFLINE && 11306 (entry->flags & CTL_CMD_FLAG_OK_ON_UNAVAIL) == 0) { 11307 ctl_set_lun_unavail(ctsio); 11308 retval = 1; 11309 goto bailout; 11310 } 11311 if ((lun->flags & CTL_LUN_PEER_SC_PRIMARY) == 0 && 11312 (entry->flags & CTL_CMD_FLAG_OK_ON_UNAVAIL) == 0) { 11313 ctl_set_lun_transit(ctsio); 11314 retval = 1; 11315 goto bailout; 11316 } 11317 if (softc->ha_mode == CTL_HA_MODE_ACT_STBY && 11318 (entry->flags & CTL_CMD_FLAG_OK_ON_STANDBY) == 0) { 11319 ctl_set_lun_standby(ctsio); 11320 retval = 1; 11321 goto bailout; 11322 } 11323 11324 /* The rest of checks are only done on executing side */ 11325 if (softc->ha_mode == CTL_HA_MODE_XFER) 11326 goto bailout; 11327 } 11328 11329 if (entry->pattern & CTL_LUN_PAT_WRITE) { 11330 if (lun->be_lun && 11331 lun->be_lun->flags & CTL_LUN_FLAG_READONLY) { 11332 ctl_set_hw_write_protected(ctsio); 11333 retval = 1; 11334 goto bailout; 11335 } 11336 if ((lun->MODE_CTRL.eca_and_aen & SCP_SWP) != 0) { 11337 ctl_set_sense(ctsio, /*current_error*/ 1, 11338 /*sense_key*/ SSD_KEY_DATA_PROTECT, 11339 /*asc*/ 0x27, /*ascq*/ 0x02, SSD_ELEM_NONE); 11340 retval = 1; 11341 goto bailout; 11342 } 11343 } 11344 11345 /* 11346 * Check for a reservation conflict. If this command isn't allowed 11347 * even on reserved LUNs, and if this initiator isn't the one who 11348 * reserved us, reject the command with a reservation conflict. 11349 */ 11350 residx = ctl_get_initindex(&ctsio->io_hdr.nexus); 11351 if ((lun->flags & CTL_LUN_RESERVED) 11352 && ((entry->flags & CTL_CMD_FLAG_ALLOW_ON_RESV) == 0)) { 11353 if (lun->res_idx != residx) { 11354 ctl_set_reservation_conflict(ctsio); 11355 retval = 1; 11356 goto bailout; 11357 } 11358 } 11359 11360 if ((lun->flags & CTL_LUN_PR_RESERVED) == 0 || 11361 (entry->flags & CTL_CMD_FLAG_ALLOW_ON_PR_RESV)) { 11362 /* No reservation or command is allowed. */; 11363 } else if ((entry->flags & CTL_CMD_FLAG_ALLOW_ON_PR_WRESV) && 11364 (lun->pr_res_type == SPR_TYPE_WR_EX || 11365 lun->pr_res_type == SPR_TYPE_WR_EX_RO || 11366 lun->pr_res_type == SPR_TYPE_WR_EX_AR)) { 11367 /* The command is allowed for Write Exclusive resv. */; 11368 } else { 11369 /* 11370 * if we aren't registered or it's a res holder type 11371 * reservation and this isn't the res holder then set a 11372 * conflict. 11373 */ 11374 if (ctl_get_prkey(lun, residx) == 0 || 11375 (residx != lun->pr_res_idx && lun->pr_res_type < 4)) { 11376 ctl_set_reservation_conflict(ctsio); 11377 retval = 1; 11378 goto bailout; 11379 } 11380 } 11381 11382 if ((entry->flags & CTL_CMD_FLAG_OK_ON_NO_MEDIA) == 0) { 11383 if (lun->flags & CTL_LUN_EJECTED) 11384 ctl_set_lun_ejected(ctsio); 11385 else if (lun->flags & CTL_LUN_NO_MEDIA) { 11386 if (lun->flags & CTL_LUN_REMOVABLE) 11387 ctl_set_lun_no_media(ctsio); 11388 else 11389 ctl_set_lun_int_reqd(ctsio); 11390 } else if (lun->flags & CTL_LUN_STOPPED) 11391 ctl_set_lun_stopped(ctsio); 11392 else 11393 goto bailout; 11394 retval = 1; 11395 goto bailout; 11396 } 11397 11398bailout: 11399 return (retval); 11400} 11401 11402static void 11403ctl_failover_io(union ctl_io *io, int have_lock) 11404{ 11405 ctl_set_busy(&io->scsiio); 11406 ctl_done(io); 11407} 11408 11409static void 11410ctl_failover_lun(union ctl_io *rio) 11411{ 11412 struct ctl_softc *softc = control_softc; 11413 struct ctl_lun *lun; 11414 struct ctl_io_hdr *io, *next_io; 11415 uint32_t targ_lun; 11416 11417 targ_lun = rio->io_hdr.nexus.targ_mapped_lun; 11418 CTL_DEBUG_PRINT(("FAILOVER for lun %ju\n", targ_lun)); 11419 11420 /* Find and lock the LUN. */ 11421 mtx_lock(&softc->ctl_lock); 11422 if ((targ_lun < CTL_MAX_LUNS) && 11423 ((lun = softc->ctl_luns[targ_lun]) != NULL)) { 11424 mtx_lock(&lun->lun_lock); 11425 mtx_unlock(&softc->ctl_lock); 11426 if (lun->flags & CTL_LUN_DISABLED) { 11427 mtx_unlock(&lun->lun_lock); 11428 return; 11429 } 11430 } else { 11431 mtx_unlock(&softc->ctl_lock); 11432 return; 11433 } 11434 11435 if (softc->ha_mode == CTL_HA_MODE_XFER) { 11436 TAILQ_FOREACH_SAFE(io, &lun->ooa_queue, ooa_links, next_io) { 11437 /* We are master */ 11438 if (io->flags & CTL_FLAG_FROM_OTHER_SC) { 11439 if (io->flags & CTL_FLAG_IO_ACTIVE) { 11440 io->flags |= CTL_FLAG_ABORT; 11441 io->flags |= CTL_FLAG_FAILOVER; 11442 } else { /* This can be only due to DATAMOVE */ 11443 io->msg_type = CTL_MSG_DATAMOVE_DONE; 11444 io->flags &= ~CTL_FLAG_DMA_INPROG; 11445 io->flags |= CTL_FLAG_IO_ACTIVE; 11446 io->port_status = 31340; 11447 ctl_enqueue_isc((union ctl_io *)io); 11448 } 11449 } 11450 /* We are slave */ 11451 if (io->flags & CTL_FLAG_SENT_2OTHER_SC) { 11452 io->flags &= ~CTL_FLAG_SENT_2OTHER_SC; 11453 if (io->flags & CTL_FLAG_IO_ACTIVE) { 11454 io->flags |= CTL_FLAG_FAILOVER; 11455 } else { 11456 ctl_set_busy(&((union ctl_io *)io)-> 11457 scsiio); 11458 ctl_done((union ctl_io *)io); 11459 } 11460 } 11461 } 11462 } else { /* SERIALIZE modes */ 11463 TAILQ_FOREACH_SAFE(io, &lun->blocked_queue, blocked_links, 11464 next_io) { 11465 /* We are master */ 11466 if (io->flags & CTL_FLAG_FROM_OTHER_SC) { 11467 TAILQ_REMOVE(&lun->blocked_queue, io, 11468 blocked_links); 11469 io->flags &= ~CTL_FLAG_BLOCKED; 11470 TAILQ_REMOVE(&lun->ooa_queue, io, ooa_links); 11471 ctl_free_io((union ctl_io *)io); 11472 } 11473 } 11474 TAILQ_FOREACH_SAFE(io, &lun->ooa_queue, ooa_links, next_io) { 11475 /* We are master */ 11476 if (io->flags & CTL_FLAG_FROM_OTHER_SC) { 11477 TAILQ_REMOVE(&lun->ooa_queue, io, ooa_links); 11478 ctl_free_io((union ctl_io *)io); 11479 } 11480 /* We are slave */ 11481 if (io->flags & CTL_FLAG_SENT_2OTHER_SC) { 11482 io->flags &= ~CTL_FLAG_SENT_2OTHER_SC; 11483 if (!(io->flags & CTL_FLAG_IO_ACTIVE)) { 11484 ctl_set_busy(&((union ctl_io *)io)-> 11485 scsiio); 11486 ctl_done((union ctl_io *)io); 11487 } 11488 } 11489 } 11490 ctl_check_blocked(lun); 11491 } 11492 mtx_unlock(&lun->lun_lock); 11493} 11494 11495static int 11496ctl_scsiio_precheck(struct ctl_softc *softc, struct ctl_scsiio *ctsio) 11497{ 11498 struct ctl_lun *lun; 11499 const struct ctl_cmd_entry *entry; 11500 uint32_t initidx, targ_lun; 11501 int retval; 11502 11503 retval = 0; 11504 11505 lun = NULL; 11506 11507 targ_lun = ctsio->io_hdr.nexus.targ_mapped_lun; 11508 if ((targ_lun < CTL_MAX_LUNS) 11509 && ((lun = softc->ctl_luns[targ_lun]) != NULL)) { 11510 /* 11511 * If the LUN is invalid, pretend that it doesn't exist. 11512 * It will go away as soon as all pending I/O has been 11513 * completed. 11514 */ 11515 mtx_lock(&lun->lun_lock); 11516 if (lun->flags & CTL_LUN_DISABLED) { 11517 mtx_unlock(&lun->lun_lock); 11518 lun = NULL; 11519 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr = NULL; 11520 ctsio->io_hdr.ctl_private[CTL_PRIV_BACKEND_LUN].ptr = NULL; 11521 } else { 11522 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr = lun; 11523 ctsio->io_hdr.ctl_private[CTL_PRIV_BACKEND_LUN].ptr = 11524 lun->be_lun; 11525 11526 /* 11527 * Every I/O goes into the OOA queue for a 11528 * particular LUN, and stays there until completion. 11529 */ 11530#ifdef CTL_TIME_IO 11531 if (TAILQ_EMPTY(&lun->ooa_queue)) { 11532 lun->idle_time += getsbinuptime() - 11533 lun->last_busy; 11534 } 11535#endif 11536 TAILQ_INSERT_TAIL(&lun->ooa_queue, &ctsio->io_hdr, 11537 ooa_links); 11538 } 11539 } else { 11540 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr = NULL; 11541 ctsio->io_hdr.ctl_private[CTL_PRIV_BACKEND_LUN].ptr = NULL; 11542 } 11543 11544 /* Get command entry and return error if it is unsuppotyed. */ 11545 entry = ctl_validate_command(ctsio); 11546 if (entry == NULL) { 11547 if (lun) 11548 mtx_unlock(&lun->lun_lock); 11549 return (retval); 11550 } 11551 11552 ctsio->io_hdr.flags &= ~CTL_FLAG_DATA_MASK; 11553 ctsio->io_hdr.flags |= entry->flags & CTL_FLAG_DATA_MASK; 11554 11555 /* 11556 * Check to see whether we can send this command to LUNs that don't 11557 * exist. This should pretty much only be the case for inquiry 11558 * and request sense. Further checks, below, really require having 11559 * a LUN, so we can't really check the command anymore. Just put 11560 * it on the rtr queue. 11561 */ 11562 if (lun == NULL) { 11563 if (entry->flags & CTL_CMD_FLAG_OK_ON_NO_LUN) { 11564 ctsio->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 11565 ctl_enqueue_rtr((union ctl_io *)ctsio); 11566 return (retval); 11567 } 11568 11569 ctl_set_unsupported_lun(ctsio); 11570 ctl_done((union ctl_io *)ctsio); 11571 CTL_DEBUG_PRINT(("ctl_scsiio_precheck: bailing out due to invalid LUN\n")); 11572 return (retval); 11573 } else { 11574 /* 11575 * Make sure we support this particular command on this LUN. 11576 * e.g., we don't support writes to the control LUN. 11577 */ 11578 if (!ctl_cmd_applicable(lun->be_lun->lun_type, entry)) { 11579 mtx_unlock(&lun->lun_lock); 11580 ctl_set_invalid_opcode(ctsio); 11581 ctl_done((union ctl_io *)ctsio); 11582 return (retval); 11583 } 11584 } 11585 11586 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 11587 11588#ifdef CTL_WITH_CA 11589 /* 11590 * If we've got a request sense, it'll clear the contingent 11591 * allegiance condition. Otherwise, if we have a CA condition for 11592 * this initiator, clear it, because it sent down a command other 11593 * than request sense. 11594 */ 11595 if ((ctsio->cdb[0] != REQUEST_SENSE) 11596 && (ctl_is_set(lun->have_ca, initidx))) 11597 ctl_clear_mask(lun->have_ca, initidx); 11598#endif 11599 11600 /* 11601 * If the command has this flag set, it handles its own unit 11602 * attention reporting, we shouldn't do anything. Otherwise we 11603 * check for any pending unit attentions, and send them back to the 11604 * initiator. We only do this when a command initially comes in, 11605 * not when we pull it off the blocked queue. 11606 * 11607 * According to SAM-3, section 5.3.2, the order that things get 11608 * presented back to the host is basically unit attentions caused 11609 * by some sort of reset event, busy status, reservation conflicts 11610 * or task set full, and finally any other status. 11611 * 11612 * One issue here is that some of the unit attentions we report 11613 * don't fall into the "reset" category (e.g. "reported luns data 11614 * has changed"). So reporting it here, before the reservation 11615 * check, may be technically wrong. I guess the only thing to do 11616 * would be to check for and report the reset events here, and then 11617 * check for the other unit attention types after we check for a 11618 * reservation conflict. 11619 * 11620 * XXX KDM need to fix this 11621 */ 11622 if ((entry->flags & CTL_CMD_FLAG_NO_SENSE) == 0) { 11623 ctl_ua_type ua_type; 11624 11625 ua_type = ctl_build_ua(lun, initidx, &ctsio->sense_data, 11626 SSD_TYPE_NONE); 11627 if (ua_type != CTL_UA_NONE) { 11628 mtx_unlock(&lun->lun_lock); 11629 ctsio->scsi_status = SCSI_STATUS_CHECK_COND; 11630 ctsio->io_hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 11631 ctsio->sense_len = SSD_FULL_SIZE; 11632 ctl_done((union ctl_io *)ctsio); 11633 return (retval); 11634 } 11635 } 11636 11637 11638 if (ctl_scsiio_lun_check(lun, entry, ctsio) != 0) { 11639 mtx_unlock(&lun->lun_lock); 11640 ctl_done((union ctl_io *)ctsio); 11641 return (retval); 11642 } 11643 11644 /* 11645 * XXX CHD this is where we want to send IO to other side if 11646 * this LUN is secondary on this SC. We will need to make a copy 11647 * of the IO and flag the IO on this side as SENT_2OTHER and the flag 11648 * the copy we send as FROM_OTHER. 11649 * We also need to stuff the address of the original IO so we can 11650 * find it easily. Something similar will need be done on the other 11651 * side so when we are done we can find the copy. 11652 */ 11653 if ((lun->flags & CTL_LUN_PRIMARY_SC) == 0 && 11654 (lun->flags & CTL_LUN_PEER_SC_PRIMARY) != 0 && 11655 (entry->flags & CTL_CMD_FLAG_RUN_HERE) == 0) { 11656 union ctl_ha_msg msg_info; 11657 int isc_retval; 11658 11659 ctsio->io_hdr.flags |= CTL_FLAG_SENT_2OTHER_SC; 11660 ctsio->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 11661 mtx_unlock(&lun->lun_lock); 11662 11663 msg_info.hdr.msg_type = CTL_MSG_SERIALIZE; 11664 msg_info.hdr.original_sc = (union ctl_io *)ctsio; 11665 msg_info.hdr.serializing_sc = NULL; 11666 msg_info.hdr.nexus = ctsio->io_hdr.nexus; 11667 msg_info.scsi.tag_num = ctsio->tag_num; 11668 msg_info.scsi.tag_type = ctsio->tag_type; 11669 msg_info.scsi.cdb_len = ctsio->cdb_len; 11670 memcpy(msg_info.scsi.cdb, ctsio->cdb, CTL_MAX_CDBLEN); 11671 11672 if ((isc_retval = ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 11673 sizeof(msg_info.scsi) - sizeof(msg_info.scsi.sense_data), 11674 M_WAITOK)) > CTL_HA_STATUS_SUCCESS) { 11675 ctl_set_busy(ctsio); 11676 ctl_done((union ctl_io *)ctsio); 11677 return (retval); 11678 } 11679 return (retval); 11680 } 11681 11682 switch (ctl_check_ooa(lun, (union ctl_io *)ctsio, 11683 (union ctl_io *)TAILQ_PREV(&ctsio->io_hdr, 11684 ctl_ooaq, ooa_links))) { 11685 case CTL_ACTION_BLOCK: 11686 ctsio->io_hdr.flags |= CTL_FLAG_BLOCKED; 11687 TAILQ_INSERT_TAIL(&lun->blocked_queue, &ctsio->io_hdr, 11688 blocked_links); 11689 mtx_unlock(&lun->lun_lock); 11690 return (retval); 11691 case CTL_ACTION_PASS: 11692 case CTL_ACTION_SKIP: 11693 ctsio->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 11694 mtx_unlock(&lun->lun_lock); 11695 ctl_enqueue_rtr((union ctl_io *)ctsio); 11696 break; 11697 case CTL_ACTION_OVERLAP: 11698 mtx_unlock(&lun->lun_lock); 11699 ctl_set_overlapped_cmd(ctsio); 11700 ctl_done((union ctl_io *)ctsio); 11701 break; 11702 case CTL_ACTION_OVERLAP_TAG: 11703 mtx_unlock(&lun->lun_lock); 11704 ctl_set_overlapped_tag(ctsio, ctsio->tag_num & 0xff); 11705 ctl_done((union ctl_io *)ctsio); 11706 break; 11707 case CTL_ACTION_ERROR: 11708 default: 11709 mtx_unlock(&lun->lun_lock); 11710 ctl_set_internal_failure(ctsio, 11711 /*sks_valid*/ 0, 11712 /*retry_count*/ 0); 11713 ctl_done((union ctl_io *)ctsio); 11714 break; 11715 } 11716 return (retval); 11717} 11718 11719const struct ctl_cmd_entry * 11720ctl_get_cmd_entry(struct ctl_scsiio *ctsio, int *sa) 11721{ 11722 const struct ctl_cmd_entry *entry; 11723 int service_action; 11724 11725 entry = &ctl_cmd_table[ctsio->cdb[0]]; 11726 if (sa) 11727 *sa = ((entry->flags & CTL_CMD_FLAG_SA5) != 0); 11728 if (entry->flags & CTL_CMD_FLAG_SA5) { 11729 service_action = ctsio->cdb[1] & SERVICE_ACTION_MASK; 11730 entry = &((const struct ctl_cmd_entry *) 11731 entry->execute)[service_action]; 11732 } 11733 return (entry); 11734} 11735 11736const struct ctl_cmd_entry * 11737ctl_validate_command(struct ctl_scsiio *ctsio) 11738{ 11739 const struct ctl_cmd_entry *entry; 11740 int i, sa; 11741 uint8_t diff; 11742 11743 entry = ctl_get_cmd_entry(ctsio, &sa); 11744 if (entry->execute == NULL) { 11745 if (sa) 11746 ctl_set_invalid_field(ctsio, 11747 /*sks_valid*/ 1, 11748 /*command*/ 1, 11749 /*field*/ 1, 11750 /*bit_valid*/ 1, 11751 /*bit*/ 4); 11752 else 11753 ctl_set_invalid_opcode(ctsio); 11754 ctl_done((union ctl_io *)ctsio); 11755 return (NULL); 11756 } 11757 KASSERT(entry->length > 0, 11758 ("Not defined length for command 0x%02x/0x%02x", 11759 ctsio->cdb[0], ctsio->cdb[1])); 11760 for (i = 1; i < entry->length; i++) { 11761 diff = ctsio->cdb[i] & ~entry->usage[i - 1]; 11762 if (diff == 0) 11763 continue; 11764 ctl_set_invalid_field(ctsio, 11765 /*sks_valid*/ 1, 11766 /*command*/ 1, 11767 /*field*/ i, 11768 /*bit_valid*/ 1, 11769 /*bit*/ fls(diff) - 1); 11770 ctl_done((union ctl_io *)ctsio); 11771 return (NULL); 11772 } 11773 return (entry); 11774} 11775 11776static int 11777ctl_cmd_applicable(uint8_t lun_type, const struct ctl_cmd_entry *entry) 11778{ 11779 11780 switch (lun_type) { 11781 case T_DIRECT: 11782 if ((entry->flags & CTL_CMD_FLAG_OK_ON_DIRECT) == 0) 11783 return (0); 11784 break; 11785 case T_PROCESSOR: 11786 if ((entry->flags & CTL_CMD_FLAG_OK_ON_PROC) == 0) 11787 return (0); 11788 break; 11789 case T_CDROM: 11790 if ((entry->flags & CTL_CMD_FLAG_OK_ON_CDROM) == 0) 11791 return (0); 11792 break; 11793 default: 11794 return (0); 11795 } 11796 return (1); 11797} 11798 11799static int 11800ctl_scsiio(struct ctl_scsiio *ctsio) 11801{ 11802 int retval; 11803 const struct ctl_cmd_entry *entry; 11804 11805 retval = CTL_RETVAL_COMPLETE; 11806 11807 CTL_DEBUG_PRINT(("ctl_scsiio cdb[0]=%02X\n", ctsio->cdb[0])); 11808 11809 entry = ctl_get_cmd_entry(ctsio, NULL); 11810 11811 /* 11812 * If this I/O has been aborted, just send it straight to 11813 * ctl_done() without executing it. 11814 */ 11815 if (ctsio->io_hdr.flags & CTL_FLAG_ABORT) { 11816 ctl_done((union ctl_io *)ctsio); 11817 goto bailout; 11818 } 11819 11820 /* 11821 * All the checks should have been handled by ctl_scsiio_precheck(). 11822 * We should be clear now to just execute the I/O. 11823 */ 11824 retval = entry->execute(ctsio); 11825 11826bailout: 11827 return (retval); 11828} 11829 11830/* 11831 * Since we only implement one target right now, a bus reset simply resets 11832 * our single target. 11833 */ 11834static int 11835ctl_bus_reset(struct ctl_softc *softc, union ctl_io *io) 11836{ 11837 return(ctl_target_reset(softc, io, CTL_UA_BUS_RESET)); 11838} 11839 11840static int 11841ctl_target_reset(struct ctl_softc *softc, union ctl_io *io, 11842 ctl_ua_type ua_type) 11843{ 11844 struct ctl_port *port; 11845 struct ctl_lun *lun; 11846 int retval; 11847 11848 if (!(io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)) { 11849 union ctl_ha_msg msg_info; 11850 11851 msg_info.hdr.nexus = io->io_hdr.nexus; 11852 if (ua_type==CTL_UA_TARG_RESET) 11853 msg_info.task.task_action = CTL_TASK_TARGET_RESET; 11854 else 11855 msg_info.task.task_action = CTL_TASK_BUS_RESET; 11856 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 11857 msg_info.hdr.original_sc = NULL; 11858 msg_info.hdr.serializing_sc = NULL; 11859 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 11860 sizeof(msg_info.task), M_WAITOK); 11861 } 11862 retval = 0; 11863 11864 mtx_lock(&softc->ctl_lock); 11865 port = ctl_io_port(&io->io_hdr); 11866 STAILQ_FOREACH(lun, &softc->lun_list, links) { 11867 if (port != NULL && 11868 ctl_lun_map_to_port(port, lun->lun) >= CTL_MAX_LUNS) 11869 continue; 11870 retval += ctl_do_lun_reset(lun, io, ua_type); 11871 } 11872 mtx_unlock(&softc->ctl_lock); 11873 io->taskio.task_status = CTL_TASK_FUNCTION_COMPLETE; 11874 return (retval); 11875} 11876 11877/* 11878 * The LUN should always be set. The I/O is optional, and is used to 11879 * distinguish between I/Os sent by this initiator, and by other 11880 * initiators. We set unit attention for initiators other than this one. 11881 * SAM-3 is vague on this point. It does say that a unit attention should 11882 * be established for other initiators when a LUN is reset (see section 11883 * 5.7.3), but it doesn't specifically say that the unit attention should 11884 * be established for this particular initiator when a LUN is reset. Here 11885 * is the relevant text, from SAM-3 rev 8: 11886 * 11887 * 5.7.2 When a SCSI initiator port aborts its own tasks 11888 * 11889 * When a SCSI initiator port causes its own task(s) to be aborted, no 11890 * notification that the task(s) have been aborted shall be returned to 11891 * the SCSI initiator port other than the completion response for the 11892 * command or task management function action that caused the task(s) to 11893 * be aborted and notification(s) associated with related effects of the 11894 * action (e.g., a reset unit attention condition). 11895 * 11896 * XXX KDM for now, we're setting unit attention for all initiators. 11897 */ 11898static int 11899ctl_do_lun_reset(struct ctl_lun *lun, union ctl_io *io, ctl_ua_type ua_type) 11900{ 11901 union ctl_io *xio; 11902#if 0 11903 uint32_t initidx; 11904#endif 11905 int i; 11906 11907 mtx_lock(&lun->lun_lock); 11908 /* 11909 * Run through the OOA queue and abort each I/O. 11910 */ 11911 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 11912 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 11913 xio->io_hdr.flags |= CTL_FLAG_ABORT | CTL_FLAG_ABORT_STATUS; 11914 } 11915 11916 /* 11917 * This version sets unit attention for every 11918 */ 11919#if 0 11920 initidx = ctl_get_initindex(&io->io_hdr.nexus); 11921 ctl_est_ua_all(lun, initidx, ua_type); 11922#else 11923 ctl_est_ua_all(lun, -1, ua_type); 11924#endif 11925 11926 /* 11927 * A reset (any kind, really) clears reservations established with 11928 * RESERVE/RELEASE. It does not clear reservations established 11929 * with PERSISTENT RESERVE OUT, but we don't support that at the 11930 * moment anyway. See SPC-2, section 5.6. SPC-3 doesn't address 11931 * reservations made with the RESERVE/RELEASE commands, because 11932 * those commands are obsolete in SPC-3. 11933 */ 11934 lun->flags &= ~CTL_LUN_RESERVED; 11935 11936#ifdef CTL_WITH_CA 11937 for (i = 0; i < CTL_MAX_INITIATORS; i++) 11938 ctl_clear_mask(lun->have_ca, i); 11939#endif 11940 lun->prevent_count = 0; 11941 for (i = 0; i < CTL_MAX_INITIATORS; i++) 11942 ctl_clear_mask(lun->prevent, i); 11943 mtx_unlock(&lun->lun_lock); 11944 11945 return (0); 11946} 11947 11948static int 11949ctl_lun_reset(struct ctl_softc *softc, union ctl_io *io) 11950{ 11951 struct ctl_lun *lun; 11952 uint32_t targ_lun; 11953 int retval; 11954 11955 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 11956 mtx_lock(&softc->ctl_lock); 11957 if ((targ_lun >= CTL_MAX_LUNS) || 11958 (lun = softc->ctl_luns[targ_lun]) == NULL) { 11959 mtx_unlock(&softc->ctl_lock); 11960 io->taskio.task_status = CTL_TASK_LUN_DOES_NOT_EXIST; 11961 return (1); 11962 } 11963 retval = ctl_do_lun_reset(lun, io, CTL_UA_LUN_RESET); 11964 mtx_unlock(&softc->ctl_lock); 11965 io->taskio.task_status = CTL_TASK_FUNCTION_COMPLETE; 11966 11967 if ((io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) == 0) { 11968 union ctl_ha_msg msg_info; 11969 11970 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 11971 msg_info.hdr.nexus = io->io_hdr.nexus; 11972 msg_info.task.task_action = CTL_TASK_LUN_RESET; 11973 msg_info.hdr.original_sc = NULL; 11974 msg_info.hdr.serializing_sc = NULL; 11975 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 11976 sizeof(msg_info.task), M_WAITOK); 11977 } 11978 return (retval); 11979} 11980 11981static void 11982ctl_abort_tasks_lun(struct ctl_lun *lun, uint32_t targ_port, uint32_t init_id, 11983 int other_sc) 11984{ 11985 union ctl_io *xio; 11986 11987 mtx_assert(&lun->lun_lock, MA_OWNED); 11988 11989 /* 11990 * Run through the OOA queue and attempt to find the given I/O. 11991 * The target port, initiator ID, tag type and tag number have to 11992 * match the values that we got from the initiator. If we have an 11993 * untagged command to abort, simply abort the first untagged command 11994 * we come to. We only allow one untagged command at a time of course. 11995 */ 11996 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 11997 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 11998 11999 if ((targ_port == UINT32_MAX || 12000 targ_port == xio->io_hdr.nexus.targ_port) && 12001 (init_id == UINT32_MAX || 12002 init_id == xio->io_hdr.nexus.initid)) { 12003 if (targ_port != xio->io_hdr.nexus.targ_port || 12004 init_id != xio->io_hdr.nexus.initid) 12005 xio->io_hdr.flags |= CTL_FLAG_ABORT_STATUS; 12006 xio->io_hdr.flags |= CTL_FLAG_ABORT; 12007 if (!other_sc && !(lun->flags & CTL_LUN_PRIMARY_SC)) { 12008 union ctl_ha_msg msg_info; 12009 12010 msg_info.hdr.nexus = xio->io_hdr.nexus; 12011 msg_info.task.task_action = CTL_TASK_ABORT_TASK; 12012 msg_info.task.tag_num = xio->scsiio.tag_num; 12013 msg_info.task.tag_type = xio->scsiio.tag_type; 12014 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 12015 msg_info.hdr.original_sc = NULL; 12016 msg_info.hdr.serializing_sc = NULL; 12017 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 12018 sizeof(msg_info.task), M_NOWAIT); 12019 } 12020 } 12021 } 12022} 12023 12024static int 12025ctl_abort_task_set(union ctl_io *io) 12026{ 12027 struct ctl_softc *softc = control_softc; 12028 struct ctl_lun *lun; 12029 uint32_t targ_lun; 12030 12031 /* 12032 * Look up the LUN. 12033 */ 12034 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12035 mtx_lock(&softc->ctl_lock); 12036 if ((targ_lun >= CTL_MAX_LUNS) || 12037 (lun = softc->ctl_luns[targ_lun]) == NULL) { 12038 mtx_unlock(&softc->ctl_lock); 12039 io->taskio.task_status = CTL_TASK_LUN_DOES_NOT_EXIST; 12040 return (1); 12041 } 12042 12043 mtx_lock(&lun->lun_lock); 12044 mtx_unlock(&softc->ctl_lock); 12045 if (io->taskio.task_action == CTL_TASK_ABORT_TASK_SET) { 12046 ctl_abort_tasks_lun(lun, io->io_hdr.nexus.targ_port, 12047 io->io_hdr.nexus.initid, 12048 (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) != 0); 12049 } else { /* CTL_TASK_CLEAR_TASK_SET */ 12050 ctl_abort_tasks_lun(lun, UINT32_MAX, UINT32_MAX, 12051 (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) != 0); 12052 } 12053 mtx_unlock(&lun->lun_lock); 12054 io->taskio.task_status = CTL_TASK_FUNCTION_COMPLETE; 12055 return (0); 12056} 12057 12058static int 12059ctl_i_t_nexus_reset(union ctl_io *io) 12060{ 12061 struct ctl_softc *softc = control_softc; 12062 struct ctl_lun *lun; 12063 uint32_t initidx; 12064 12065 if (!(io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)) { 12066 union ctl_ha_msg msg_info; 12067 12068 msg_info.hdr.nexus = io->io_hdr.nexus; 12069 msg_info.task.task_action = CTL_TASK_I_T_NEXUS_RESET; 12070 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 12071 msg_info.hdr.original_sc = NULL; 12072 msg_info.hdr.serializing_sc = NULL; 12073 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 12074 sizeof(msg_info.task), M_WAITOK); 12075 } 12076 12077 initidx = ctl_get_initindex(&io->io_hdr.nexus); 12078 mtx_lock(&softc->ctl_lock); 12079 STAILQ_FOREACH(lun, &softc->lun_list, links) { 12080 mtx_lock(&lun->lun_lock); 12081 ctl_abort_tasks_lun(lun, io->io_hdr.nexus.targ_port, 12082 io->io_hdr.nexus.initid, 1); 12083#ifdef CTL_WITH_CA 12084 ctl_clear_mask(lun->have_ca, initidx); 12085#endif 12086 if ((lun->flags & CTL_LUN_RESERVED) && (lun->res_idx == initidx)) 12087 lun->flags &= ~CTL_LUN_RESERVED; 12088 if (ctl_is_set(lun->prevent, initidx)) { 12089 ctl_clear_mask(lun->prevent, initidx); 12090 lun->prevent_count--; 12091 } 12092 ctl_est_ua(lun, initidx, CTL_UA_I_T_NEXUS_LOSS); 12093 mtx_unlock(&lun->lun_lock); 12094 } 12095 mtx_unlock(&softc->ctl_lock); 12096 io->taskio.task_status = CTL_TASK_FUNCTION_COMPLETE; 12097 return (0); 12098} 12099 12100static int 12101ctl_abort_task(union ctl_io *io) 12102{ 12103 union ctl_io *xio; 12104 struct ctl_lun *lun; 12105 struct ctl_softc *softc; 12106#if 0 12107 struct sbuf sb; 12108 char printbuf[128]; 12109#endif 12110 int found; 12111 uint32_t targ_lun; 12112 12113 softc = control_softc; 12114 found = 0; 12115 12116 /* 12117 * Look up the LUN. 12118 */ 12119 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12120 mtx_lock(&softc->ctl_lock); 12121 if ((targ_lun >= CTL_MAX_LUNS) || 12122 (lun = softc->ctl_luns[targ_lun]) == NULL) { 12123 mtx_unlock(&softc->ctl_lock); 12124 io->taskio.task_status = CTL_TASK_LUN_DOES_NOT_EXIST; 12125 return (1); 12126 } 12127 12128#if 0 12129 printf("ctl_abort_task: called for lun %lld, tag %d type %d\n", 12130 lun->lun, io->taskio.tag_num, io->taskio.tag_type); 12131#endif 12132 12133 mtx_lock(&lun->lun_lock); 12134 mtx_unlock(&softc->ctl_lock); 12135 /* 12136 * Run through the OOA queue and attempt to find the given I/O. 12137 * The target port, initiator ID, tag type and tag number have to 12138 * match the values that we got from the initiator. If we have an 12139 * untagged command to abort, simply abort the first untagged command 12140 * we come to. We only allow one untagged command at a time of course. 12141 */ 12142 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 12143 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 12144#if 0 12145 sbuf_new(&sb, printbuf, sizeof(printbuf), SBUF_FIXEDLEN); 12146 12147 sbuf_printf(&sb, "LUN %lld tag %d type %d%s%s%s%s: ", 12148 lun->lun, xio->scsiio.tag_num, 12149 xio->scsiio.tag_type, 12150 (xio->io_hdr.blocked_links.tqe_prev 12151 == NULL) ? "" : " BLOCKED", 12152 (xio->io_hdr.flags & 12153 CTL_FLAG_DMA_INPROG) ? " DMA" : "", 12154 (xio->io_hdr.flags & 12155 CTL_FLAG_ABORT) ? " ABORT" : "", 12156 (xio->io_hdr.flags & 12157 CTL_FLAG_IS_WAS_ON_RTR ? " RTR" : "")); 12158 ctl_scsi_command_string(&xio->scsiio, NULL, &sb); 12159 sbuf_finish(&sb); 12160 printf("%s\n", sbuf_data(&sb)); 12161#endif 12162 12163 if ((xio->io_hdr.nexus.targ_port != io->io_hdr.nexus.targ_port) 12164 || (xio->io_hdr.nexus.initid != io->io_hdr.nexus.initid) 12165 || (xio->io_hdr.flags & CTL_FLAG_ABORT)) 12166 continue; 12167 12168 /* 12169 * If the abort says that the task is untagged, the 12170 * task in the queue must be untagged. Otherwise, 12171 * we just check to see whether the tag numbers 12172 * match. This is because the QLogic firmware 12173 * doesn't pass back the tag type in an abort 12174 * request. 12175 */ 12176#if 0 12177 if (((xio->scsiio.tag_type == CTL_TAG_UNTAGGED) 12178 && (io->taskio.tag_type == CTL_TAG_UNTAGGED)) 12179 || (xio->scsiio.tag_num == io->taskio.tag_num)) 12180#endif 12181 /* 12182 * XXX KDM we've got problems with FC, because it 12183 * doesn't send down a tag type with aborts. So we 12184 * can only really go by the tag number... 12185 * This may cause problems with parallel SCSI. 12186 * Need to figure that out!! 12187 */ 12188 if (xio->scsiio.tag_num == io->taskio.tag_num) { 12189 xio->io_hdr.flags |= CTL_FLAG_ABORT; 12190 found = 1; 12191 if ((io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) == 0 && 12192 !(lun->flags & CTL_LUN_PRIMARY_SC)) { 12193 union ctl_ha_msg msg_info; 12194 12195 msg_info.hdr.nexus = io->io_hdr.nexus; 12196 msg_info.task.task_action = CTL_TASK_ABORT_TASK; 12197 msg_info.task.tag_num = io->taskio.tag_num; 12198 msg_info.task.tag_type = io->taskio.tag_type; 12199 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 12200 msg_info.hdr.original_sc = NULL; 12201 msg_info.hdr.serializing_sc = NULL; 12202#if 0 12203 printf("Sent Abort to other side\n"); 12204#endif 12205 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 12206 sizeof(msg_info.task), M_NOWAIT); 12207 } 12208#if 0 12209 printf("ctl_abort_task: found I/O to abort\n"); 12210#endif 12211 } 12212 } 12213 mtx_unlock(&lun->lun_lock); 12214 12215 if (found == 0) { 12216 /* 12217 * This isn't really an error. It's entirely possible for 12218 * the abort and command completion to cross on the wire. 12219 * This is more of an informative/diagnostic error. 12220 */ 12221#if 0 12222 printf("ctl_abort_task: ABORT sent for nonexistent I/O: " 12223 "%u:%u:%u tag %d type %d\n", 12224 io->io_hdr.nexus.initid, 12225 io->io_hdr.nexus.targ_port, 12226 io->io_hdr.nexus.targ_lun, io->taskio.tag_num, 12227 io->taskio.tag_type); 12228#endif 12229 } 12230 io->taskio.task_status = CTL_TASK_FUNCTION_COMPLETE; 12231 return (0); 12232} 12233 12234static int 12235ctl_query_task(union ctl_io *io, int task_set) 12236{ 12237 union ctl_io *xio; 12238 struct ctl_lun *lun; 12239 struct ctl_softc *softc; 12240 int found = 0; 12241 uint32_t targ_lun; 12242 12243 softc = control_softc; 12244 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12245 mtx_lock(&softc->ctl_lock); 12246 if ((targ_lun >= CTL_MAX_LUNS) || 12247 (lun = softc->ctl_luns[targ_lun]) == NULL) { 12248 mtx_unlock(&softc->ctl_lock); 12249 io->taskio.task_status = CTL_TASK_LUN_DOES_NOT_EXIST; 12250 return (1); 12251 } 12252 mtx_lock(&lun->lun_lock); 12253 mtx_unlock(&softc->ctl_lock); 12254 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 12255 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 12256 12257 if ((xio->io_hdr.nexus.targ_port != io->io_hdr.nexus.targ_port) 12258 || (xio->io_hdr.nexus.initid != io->io_hdr.nexus.initid) 12259 || (xio->io_hdr.flags & CTL_FLAG_ABORT)) 12260 continue; 12261 12262 if (task_set || xio->scsiio.tag_num == io->taskio.tag_num) { 12263 found = 1; 12264 break; 12265 } 12266 } 12267 mtx_unlock(&lun->lun_lock); 12268 if (found) 12269 io->taskio.task_status = CTL_TASK_FUNCTION_SUCCEEDED; 12270 else 12271 io->taskio.task_status = CTL_TASK_FUNCTION_COMPLETE; 12272 return (0); 12273} 12274 12275static int 12276ctl_query_async_event(union ctl_io *io) 12277{ 12278 struct ctl_lun *lun; 12279 struct ctl_softc *softc; 12280 ctl_ua_type ua; 12281 uint32_t targ_lun, initidx; 12282 12283 softc = control_softc; 12284 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12285 mtx_lock(&softc->ctl_lock); 12286 if ((targ_lun >= CTL_MAX_LUNS) || 12287 (lun = softc->ctl_luns[targ_lun]) == NULL) { 12288 mtx_unlock(&softc->ctl_lock); 12289 io->taskio.task_status = CTL_TASK_LUN_DOES_NOT_EXIST; 12290 return (1); 12291 } 12292 mtx_lock(&lun->lun_lock); 12293 mtx_unlock(&softc->ctl_lock); 12294 initidx = ctl_get_initindex(&io->io_hdr.nexus); 12295 ua = ctl_build_qae(lun, initidx, io->taskio.task_resp); 12296 mtx_unlock(&lun->lun_lock); 12297 if (ua != CTL_UA_NONE) 12298 io->taskio.task_status = CTL_TASK_FUNCTION_SUCCEEDED; 12299 else 12300 io->taskio.task_status = CTL_TASK_FUNCTION_COMPLETE; 12301 return (0); 12302} 12303 12304static void 12305ctl_run_task(union ctl_io *io) 12306{ 12307 struct ctl_softc *softc = control_softc; 12308 int retval = 1; 12309 12310 CTL_DEBUG_PRINT(("ctl_run_task\n")); 12311 KASSERT(io->io_hdr.io_type == CTL_IO_TASK, 12312 ("ctl_run_task: Unextected io_type %d\n", io->io_hdr.io_type)); 12313 io->taskio.task_status = CTL_TASK_FUNCTION_NOT_SUPPORTED; 12314 bzero(io->taskio.task_resp, sizeof(io->taskio.task_resp)); 12315 switch (io->taskio.task_action) { 12316 case CTL_TASK_ABORT_TASK: 12317 retval = ctl_abort_task(io); 12318 break; 12319 case CTL_TASK_ABORT_TASK_SET: 12320 case CTL_TASK_CLEAR_TASK_SET: 12321 retval = ctl_abort_task_set(io); 12322 break; 12323 case CTL_TASK_CLEAR_ACA: 12324 break; 12325 case CTL_TASK_I_T_NEXUS_RESET: 12326 retval = ctl_i_t_nexus_reset(io); 12327 break; 12328 case CTL_TASK_LUN_RESET: 12329 retval = ctl_lun_reset(softc, io); 12330 break; 12331 case CTL_TASK_TARGET_RESET: 12332 retval = ctl_target_reset(softc, io, CTL_UA_TARG_RESET); 12333 break; 12334 case CTL_TASK_BUS_RESET: 12335 retval = ctl_bus_reset(softc, io); 12336 break; 12337 case CTL_TASK_PORT_LOGIN: 12338 break; 12339 case CTL_TASK_PORT_LOGOUT: 12340 break; 12341 case CTL_TASK_QUERY_TASK: 12342 retval = ctl_query_task(io, 0); 12343 break; 12344 case CTL_TASK_QUERY_TASK_SET: 12345 retval = ctl_query_task(io, 1); 12346 break; 12347 case CTL_TASK_QUERY_ASYNC_EVENT: 12348 retval = ctl_query_async_event(io); 12349 break; 12350 default: 12351 printf("%s: got unknown task management event %d\n", 12352 __func__, io->taskio.task_action); 12353 break; 12354 } 12355 if (retval == 0) 12356 io->io_hdr.status = CTL_SUCCESS; 12357 else 12358 io->io_hdr.status = CTL_ERROR; 12359 ctl_done(io); 12360} 12361 12362/* 12363 * For HA operation. Handle commands that come in from the other 12364 * controller. 12365 */ 12366static void 12367ctl_handle_isc(union ctl_io *io) 12368{ 12369 int free_io; 12370 struct ctl_lun *lun; 12371 struct ctl_softc *softc = control_softc; 12372 uint32_t targ_lun; 12373 12374 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12375 lun = softc->ctl_luns[targ_lun]; 12376 12377 switch (io->io_hdr.msg_type) { 12378 case CTL_MSG_SERIALIZE: 12379 free_io = ctl_serialize_other_sc_cmd(&io->scsiio); 12380 break; 12381 case CTL_MSG_R2R: { 12382 const struct ctl_cmd_entry *entry; 12383 12384 /* 12385 * This is only used in SER_ONLY mode. 12386 */ 12387 free_io = 0; 12388 entry = ctl_get_cmd_entry(&io->scsiio, NULL); 12389 mtx_lock(&lun->lun_lock); 12390 if (ctl_scsiio_lun_check(lun, 12391 entry, (struct ctl_scsiio *)io) != 0) { 12392 mtx_unlock(&lun->lun_lock); 12393 ctl_done(io); 12394 break; 12395 } 12396 io->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 12397 mtx_unlock(&lun->lun_lock); 12398 ctl_enqueue_rtr(io); 12399 break; 12400 } 12401 case CTL_MSG_FINISH_IO: 12402 if (softc->ha_mode == CTL_HA_MODE_XFER) { 12403 free_io = 0; 12404 ctl_done(io); 12405 } else { 12406 free_io = 1; 12407 mtx_lock(&lun->lun_lock); 12408 TAILQ_REMOVE(&lun->ooa_queue, &io->io_hdr, 12409 ooa_links); 12410 ctl_check_blocked(lun); 12411 mtx_unlock(&lun->lun_lock); 12412 } 12413 break; 12414 case CTL_MSG_PERS_ACTION: 12415 ctl_hndl_per_res_out_on_other_sc( 12416 (union ctl_ha_msg *)&io->presio.pr_msg); 12417 free_io = 1; 12418 break; 12419 case CTL_MSG_BAD_JUJU: 12420 free_io = 0; 12421 ctl_done(io); 12422 break; 12423 case CTL_MSG_DATAMOVE: 12424 /* Only used in XFER mode */ 12425 free_io = 0; 12426 ctl_datamove_remote(io); 12427 break; 12428 case CTL_MSG_DATAMOVE_DONE: 12429 /* Only used in XFER mode */ 12430 free_io = 0; 12431 io->scsiio.be_move_done(io); 12432 break; 12433 case CTL_MSG_FAILOVER: 12434 ctl_failover_lun(io); 12435 free_io = 1; 12436 break; 12437 default: 12438 free_io = 1; 12439 printf("%s: Invalid message type %d\n", 12440 __func__, io->io_hdr.msg_type); 12441 break; 12442 } 12443 if (free_io) 12444 ctl_free_io(io); 12445 12446} 12447 12448 12449/* 12450 * Returns the match type in the case of a match, or CTL_LUN_PAT_NONE if 12451 * there is no match. 12452 */ 12453static ctl_lun_error_pattern 12454ctl_cmd_pattern_match(struct ctl_scsiio *ctsio, struct ctl_error_desc *desc) 12455{ 12456 const struct ctl_cmd_entry *entry; 12457 ctl_lun_error_pattern filtered_pattern, pattern; 12458 12459 pattern = desc->error_pattern; 12460 12461 /* 12462 * XXX KDM we need more data passed into this function to match a 12463 * custom pattern, and we actually need to implement custom pattern 12464 * matching. 12465 */ 12466 if (pattern & CTL_LUN_PAT_CMD) 12467 return (CTL_LUN_PAT_CMD); 12468 12469 if ((pattern & CTL_LUN_PAT_MASK) == CTL_LUN_PAT_ANY) 12470 return (CTL_LUN_PAT_ANY); 12471 12472 entry = ctl_get_cmd_entry(ctsio, NULL); 12473 12474 filtered_pattern = entry->pattern & pattern; 12475 12476 /* 12477 * If the user requested specific flags in the pattern (e.g. 12478 * CTL_LUN_PAT_RANGE), make sure the command supports all of those 12479 * flags. 12480 * 12481 * If the user did not specify any flags, it doesn't matter whether 12482 * or not the command supports the flags. 12483 */ 12484 if ((filtered_pattern & ~CTL_LUN_PAT_MASK) != 12485 (pattern & ~CTL_LUN_PAT_MASK)) 12486 return (CTL_LUN_PAT_NONE); 12487 12488 /* 12489 * If the user asked for a range check, see if the requested LBA 12490 * range overlaps with this command's LBA range. 12491 */ 12492 if (filtered_pattern & CTL_LUN_PAT_RANGE) { 12493 uint64_t lba1; 12494 uint64_t len1; 12495 ctl_action action; 12496 int retval; 12497 12498 retval = ctl_get_lba_len((union ctl_io *)ctsio, &lba1, &len1); 12499 if (retval != 0) 12500 return (CTL_LUN_PAT_NONE); 12501 12502 action = ctl_extent_check_lba(lba1, len1, desc->lba_range.lba, 12503 desc->lba_range.len, FALSE); 12504 /* 12505 * A "pass" means that the LBA ranges don't overlap, so 12506 * this doesn't match the user's range criteria. 12507 */ 12508 if (action == CTL_ACTION_PASS) 12509 return (CTL_LUN_PAT_NONE); 12510 } 12511 12512 return (filtered_pattern); 12513} 12514 12515static void 12516ctl_inject_error(struct ctl_lun *lun, union ctl_io *io) 12517{ 12518 struct ctl_error_desc *desc, *desc2; 12519 12520 mtx_assert(&lun->lun_lock, MA_OWNED); 12521 12522 STAILQ_FOREACH_SAFE(desc, &lun->error_list, links, desc2) { 12523 ctl_lun_error_pattern pattern; 12524 /* 12525 * Check to see whether this particular command matches 12526 * the pattern in the descriptor. 12527 */ 12528 pattern = ctl_cmd_pattern_match(&io->scsiio, desc); 12529 if ((pattern & CTL_LUN_PAT_MASK) == CTL_LUN_PAT_NONE) 12530 continue; 12531 12532 switch (desc->lun_error & CTL_LUN_INJ_TYPE) { 12533 case CTL_LUN_INJ_ABORTED: 12534 ctl_set_aborted(&io->scsiio); 12535 break; 12536 case CTL_LUN_INJ_MEDIUM_ERR: 12537 ctl_set_medium_error(&io->scsiio, 12538 (io->io_hdr.flags & CTL_FLAG_DATA_MASK) != 12539 CTL_FLAG_DATA_OUT); 12540 break; 12541 case CTL_LUN_INJ_UA: 12542 /* 29h/00h POWER ON, RESET, OR BUS DEVICE RESET 12543 * OCCURRED */ 12544 ctl_set_ua(&io->scsiio, 0x29, 0x00); 12545 break; 12546 case CTL_LUN_INJ_CUSTOM: 12547 /* 12548 * We're assuming the user knows what he is doing. 12549 * Just copy the sense information without doing 12550 * checks. 12551 */ 12552 bcopy(&desc->custom_sense, &io->scsiio.sense_data, 12553 MIN(sizeof(desc->custom_sense), 12554 sizeof(io->scsiio.sense_data))); 12555 io->scsiio.scsi_status = SCSI_STATUS_CHECK_COND; 12556 io->scsiio.sense_len = SSD_FULL_SIZE; 12557 io->io_hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 12558 break; 12559 case CTL_LUN_INJ_NONE: 12560 default: 12561 /* 12562 * If this is an error injection type we don't know 12563 * about, clear the continuous flag (if it is set) 12564 * so it will get deleted below. 12565 */ 12566 desc->lun_error &= ~CTL_LUN_INJ_CONTINUOUS; 12567 break; 12568 } 12569 /* 12570 * By default, each error injection action is a one-shot 12571 */ 12572 if (desc->lun_error & CTL_LUN_INJ_CONTINUOUS) 12573 continue; 12574 12575 STAILQ_REMOVE(&lun->error_list, desc, ctl_error_desc, links); 12576 12577 free(desc, M_CTL); 12578 } 12579} 12580 12581#ifdef CTL_IO_DELAY 12582static void 12583ctl_datamove_timer_wakeup(void *arg) 12584{ 12585 union ctl_io *io; 12586 12587 io = (union ctl_io *)arg; 12588 12589 ctl_datamove(io); 12590} 12591#endif /* CTL_IO_DELAY */ 12592 12593void 12594ctl_datamove(union ctl_io *io) 12595{ 12596 struct ctl_lun *lun; 12597 void (*fe_datamove)(union ctl_io *io); 12598 12599 mtx_assert(&control_softc->ctl_lock, MA_NOTOWNED); 12600 12601 CTL_DEBUG_PRINT(("ctl_datamove\n")); 12602 12603 lun = (struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 12604#ifdef CTL_TIME_IO 12605 if ((time_uptime - io->io_hdr.start_time) > ctl_time_io_secs) { 12606 char str[256]; 12607 char path_str[64]; 12608 struct sbuf sb; 12609 12610 ctl_scsi_path_string(io, path_str, sizeof(path_str)); 12611 sbuf_new(&sb, str, sizeof(str), SBUF_FIXEDLEN); 12612 12613 sbuf_cat(&sb, path_str); 12614 switch (io->io_hdr.io_type) { 12615 case CTL_IO_SCSI: 12616 ctl_scsi_command_string(&io->scsiio, NULL, &sb); 12617 sbuf_printf(&sb, "\n"); 12618 sbuf_cat(&sb, path_str); 12619 sbuf_printf(&sb, "Tag: 0x%04x, type %d\n", 12620 io->scsiio.tag_num, io->scsiio.tag_type); 12621 break; 12622 case CTL_IO_TASK: 12623 sbuf_printf(&sb, "Task I/O type: %d, Tag: 0x%04x, " 12624 "Tag Type: %d\n", io->taskio.task_action, 12625 io->taskio.tag_num, io->taskio.tag_type); 12626 break; 12627 default: 12628 panic("%s: Invalid CTL I/O type %d\n", 12629 __func__, io->io_hdr.io_type); 12630 } 12631 sbuf_cat(&sb, path_str); 12632 sbuf_printf(&sb, "ctl_datamove: %jd seconds\n", 12633 (intmax_t)time_uptime - io->io_hdr.start_time); 12634 sbuf_finish(&sb); 12635 printf("%s", sbuf_data(&sb)); 12636 } 12637#endif /* CTL_TIME_IO */ 12638 12639#ifdef CTL_IO_DELAY 12640 if (io->io_hdr.flags & CTL_FLAG_DELAY_DONE) { 12641 io->io_hdr.flags &= ~CTL_FLAG_DELAY_DONE; 12642 } else { 12643 if ((lun != NULL) 12644 && (lun->delay_info.datamove_delay > 0)) { 12645 12646 callout_init(&io->io_hdr.delay_callout, /*mpsafe*/ 1); 12647 io->io_hdr.flags |= CTL_FLAG_DELAY_DONE; 12648 callout_reset(&io->io_hdr.delay_callout, 12649 lun->delay_info.datamove_delay * hz, 12650 ctl_datamove_timer_wakeup, io); 12651 if (lun->delay_info.datamove_type == 12652 CTL_DELAY_TYPE_ONESHOT) 12653 lun->delay_info.datamove_delay = 0; 12654 return; 12655 } 12656 } 12657#endif 12658 12659 /* 12660 * This command has been aborted. Set the port status, so we fail 12661 * the data move. 12662 */ 12663 if (io->io_hdr.flags & CTL_FLAG_ABORT) { 12664 printf("ctl_datamove: tag 0x%04x on (%u:%u:%u) aborted\n", 12665 io->scsiio.tag_num, io->io_hdr.nexus.initid, 12666 io->io_hdr.nexus.targ_port, 12667 io->io_hdr.nexus.targ_lun); 12668 io->io_hdr.port_status = 31337; 12669 /* 12670 * Note that the backend, in this case, will get the 12671 * callback in its context. In other cases it may get 12672 * called in the frontend's interrupt thread context. 12673 */ 12674 io->scsiio.be_move_done(io); 12675 return; 12676 } 12677 12678 /* Don't confuse frontend with zero length data move. */ 12679 if (io->scsiio.kern_data_len == 0) { 12680 io->scsiio.be_move_done(io); 12681 return; 12682 } 12683 12684 fe_datamove = ctl_io_port(&io->io_hdr)->fe_datamove; 12685 fe_datamove(io); 12686} 12687 12688static void 12689ctl_send_datamove_done(union ctl_io *io, int have_lock) 12690{ 12691 union ctl_ha_msg msg; 12692#ifdef CTL_TIME_IO 12693 struct bintime cur_bt; 12694#endif 12695 12696 memset(&msg, 0, sizeof(msg)); 12697 msg.hdr.msg_type = CTL_MSG_DATAMOVE_DONE; 12698 msg.hdr.original_sc = io; 12699 msg.hdr.serializing_sc = io->io_hdr.serializing_sc; 12700 msg.hdr.nexus = io->io_hdr.nexus; 12701 msg.hdr.status = io->io_hdr.status; 12702 msg.scsi.tag_num = io->scsiio.tag_num; 12703 msg.scsi.tag_type = io->scsiio.tag_type; 12704 msg.scsi.scsi_status = io->scsiio.scsi_status; 12705 memcpy(&msg.scsi.sense_data, &io->scsiio.sense_data, 12706 io->scsiio.sense_len); 12707 msg.scsi.sense_len = io->scsiio.sense_len; 12708 msg.scsi.sense_residual = io->scsiio.sense_residual; 12709 msg.scsi.fetd_status = io->io_hdr.port_status; 12710 msg.scsi.residual = io->scsiio.residual; 12711 io->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 12712 if (io->io_hdr.flags & CTL_FLAG_FAILOVER) { 12713 ctl_failover_io(io, /*have_lock*/ have_lock); 12714 return; 12715 } 12716 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, 12717 sizeof(msg.scsi) - sizeof(msg.scsi.sense_data) + 12718 msg.scsi.sense_len, M_WAITOK); 12719 12720#ifdef CTL_TIME_IO 12721 getbinuptime(&cur_bt); 12722 bintime_sub(&cur_bt, &io->io_hdr.dma_start_bt); 12723 bintime_add(&io->io_hdr.dma_bt, &cur_bt); 12724#endif 12725 io->io_hdr.num_dmas++; 12726} 12727 12728/* 12729 * The DMA to the remote side is done, now we need to tell the other side 12730 * we're done so it can continue with its data movement. 12731 */ 12732static void 12733ctl_datamove_remote_write_cb(struct ctl_ha_dt_req *rq) 12734{ 12735 union ctl_io *io; 12736 uint32_t i; 12737 12738 io = rq->context; 12739 12740 if (rq->ret != CTL_HA_STATUS_SUCCESS) { 12741 printf("%s: ISC DMA write failed with error %d", __func__, 12742 rq->ret); 12743 ctl_set_internal_failure(&io->scsiio, 12744 /*sks_valid*/ 1, 12745 /*retry_count*/ rq->ret); 12746 } 12747 12748 ctl_dt_req_free(rq); 12749 12750 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 12751 free(io->io_hdr.local_sglist[i].addr, M_CTL); 12752 free(io->io_hdr.remote_sglist, M_CTL); 12753 io->io_hdr.remote_sglist = NULL; 12754 io->io_hdr.local_sglist = NULL; 12755 12756 /* 12757 * The data is in local and remote memory, so now we need to send 12758 * status (good or back) back to the other side. 12759 */ 12760 ctl_send_datamove_done(io, /*have_lock*/ 0); 12761} 12762 12763/* 12764 * We've moved the data from the host/controller into local memory. Now we 12765 * need to push it over to the remote controller's memory. 12766 */ 12767static int 12768ctl_datamove_remote_dm_write_cb(union ctl_io *io) 12769{ 12770 int retval; 12771 12772 retval = ctl_datamove_remote_xfer(io, CTL_HA_DT_CMD_WRITE, 12773 ctl_datamove_remote_write_cb); 12774 return (retval); 12775} 12776 12777static void 12778ctl_datamove_remote_write(union ctl_io *io) 12779{ 12780 int retval; 12781 void (*fe_datamove)(union ctl_io *io); 12782 12783 /* 12784 * - Get the data from the host/HBA into local memory. 12785 * - DMA memory from the local controller to the remote controller. 12786 * - Send status back to the remote controller. 12787 */ 12788 12789 retval = ctl_datamove_remote_sgl_setup(io); 12790 if (retval != 0) 12791 return; 12792 12793 /* Switch the pointer over so the FETD knows what to do */ 12794 io->scsiio.kern_data_ptr = (uint8_t *)io->io_hdr.local_sglist; 12795 12796 /* 12797 * Use a custom move done callback, since we need to send completion 12798 * back to the other controller, not to the backend on this side. 12799 */ 12800 io->scsiio.be_move_done = ctl_datamove_remote_dm_write_cb; 12801 12802 fe_datamove = ctl_io_port(&io->io_hdr)->fe_datamove; 12803 fe_datamove(io); 12804} 12805 12806static int 12807ctl_datamove_remote_dm_read_cb(union ctl_io *io) 12808{ 12809#if 0 12810 char str[256]; 12811 char path_str[64]; 12812 struct sbuf sb; 12813#endif 12814 uint32_t i; 12815 12816 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 12817 free(io->io_hdr.local_sglist[i].addr, M_CTL); 12818 free(io->io_hdr.remote_sglist, M_CTL); 12819 io->io_hdr.remote_sglist = NULL; 12820 io->io_hdr.local_sglist = NULL; 12821 12822#if 0 12823 scsi_path_string(io, path_str, sizeof(path_str)); 12824 sbuf_new(&sb, str, sizeof(str), SBUF_FIXEDLEN); 12825 sbuf_cat(&sb, path_str); 12826 scsi_command_string(&io->scsiio, NULL, &sb); 12827 sbuf_printf(&sb, "\n"); 12828 sbuf_cat(&sb, path_str); 12829 sbuf_printf(&sb, "Tag: 0x%04x, type %d\n", 12830 io->scsiio.tag_num, io->scsiio.tag_type); 12831 sbuf_cat(&sb, path_str); 12832 sbuf_printf(&sb, "%s: flags %#x, status %#x\n", __func__, 12833 io->io_hdr.flags, io->io_hdr.status); 12834 sbuf_finish(&sb); 12835 printk("%s", sbuf_data(&sb)); 12836#endif 12837 12838 12839 /* 12840 * The read is done, now we need to send status (good or bad) back 12841 * to the other side. 12842 */ 12843 ctl_send_datamove_done(io, /*have_lock*/ 0); 12844 12845 return (0); 12846} 12847 12848static void 12849ctl_datamove_remote_read_cb(struct ctl_ha_dt_req *rq) 12850{ 12851 union ctl_io *io; 12852 void (*fe_datamove)(union ctl_io *io); 12853 12854 io = rq->context; 12855 12856 if (rq->ret != CTL_HA_STATUS_SUCCESS) { 12857 printf("%s: ISC DMA read failed with error %d\n", __func__, 12858 rq->ret); 12859 ctl_set_internal_failure(&io->scsiio, 12860 /*sks_valid*/ 1, 12861 /*retry_count*/ rq->ret); 12862 } 12863 12864 ctl_dt_req_free(rq); 12865 12866 /* Switch the pointer over so the FETD knows what to do */ 12867 io->scsiio.kern_data_ptr = (uint8_t *)io->io_hdr.local_sglist; 12868 12869 /* 12870 * Use a custom move done callback, since we need to send completion 12871 * back to the other controller, not to the backend on this side. 12872 */ 12873 io->scsiio.be_move_done = ctl_datamove_remote_dm_read_cb; 12874 12875 /* XXX KDM add checks like the ones in ctl_datamove? */ 12876 12877 fe_datamove = ctl_io_port(&io->io_hdr)->fe_datamove; 12878 fe_datamove(io); 12879} 12880 12881static int 12882ctl_datamove_remote_sgl_setup(union ctl_io *io) 12883{ 12884 struct ctl_sg_entry *local_sglist; 12885 uint32_t len_to_go; 12886 int retval; 12887 int i; 12888 12889 retval = 0; 12890 local_sglist = io->io_hdr.local_sglist; 12891 len_to_go = io->scsiio.kern_data_len; 12892 12893 /* 12894 * The difficult thing here is that the size of the various 12895 * S/G segments may be different than the size from the 12896 * remote controller. That'll make it harder when DMAing 12897 * the data back to the other side. 12898 */ 12899 for (i = 0; len_to_go > 0; i++) { 12900 local_sglist[i].len = MIN(len_to_go, CTL_HA_DATAMOVE_SEGMENT); 12901 local_sglist[i].addr = 12902 malloc(local_sglist[i].len, M_CTL, M_WAITOK); 12903 12904 len_to_go -= local_sglist[i].len; 12905 } 12906 /* 12907 * Reset the number of S/G entries accordingly. The original 12908 * number of S/G entries is available in rem_sg_entries. 12909 */ 12910 io->scsiio.kern_sg_entries = i; 12911 12912#if 0 12913 printf("%s: kern_sg_entries = %d\n", __func__, 12914 io->scsiio.kern_sg_entries); 12915 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 12916 printf("%s: sg[%d] = %p, %lu\n", __func__, i, 12917 local_sglist[i].addr, local_sglist[i].len); 12918#endif 12919 12920 return (retval); 12921} 12922 12923static int 12924ctl_datamove_remote_xfer(union ctl_io *io, unsigned command, 12925 ctl_ha_dt_cb callback) 12926{ 12927 struct ctl_ha_dt_req *rq; 12928 struct ctl_sg_entry *remote_sglist, *local_sglist; 12929 uint32_t local_used, remote_used, total_used; 12930 int i, j, isc_ret; 12931 12932 rq = ctl_dt_req_alloc(); 12933 12934 /* 12935 * If we failed to allocate the request, and if the DMA didn't fail 12936 * anyway, set busy status. This is just a resource allocation 12937 * failure. 12938 */ 12939 if ((rq == NULL) 12940 && ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE && 12941 (io->io_hdr.status & CTL_STATUS_MASK) != CTL_SUCCESS)) 12942 ctl_set_busy(&io->scsiio); 12943 12944 if ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE && 12945 (io->io_hdr.status & CTL_STATUS_MASK) != CTL_SUCCESS) { 12946 12947 if (rq != NULL) 12948 ctl_dt_req_free(rq); 12949 12950 /* 12951 * The data move failed. We need to return status back 12952 * to the other controller. No point in trying to DMA 12953 * data to the remote controller. 12954 */ 12955 12956 ctl_send_datamove_done(io, /*have_lock*/ 0); 12957 12958 return (1); 12959 } 12960 12961 local_sglist = io->io_hdr.local_sglist; 12962 remote_sglist = io->io_hdr.remote_sglist; 12963 local_used = 0; 12964 remote_used = 0; 12965 total_used = 0; 12966 12967 /* 12968 * Pull/push the data over the wire from/to the other controller. 12969 * This takes into account the possibility that the local and 12970 * remote sglists may not be identical in terms of the size of 12971 * the elements and the number of elements. 12972 * 12973 * One fundamental assumption here is that the length allocated for 12974 * both the local and remote sglists is identical. Otherwise, we've 12975 * essentially got a coding error of some sort. 12976 */ 12977 isc_ret = CTL_HA_STATUS_SUCCESS; 12978 for (i = 0, j = 0; total_used < io->scsiio.kern_data_len; ) { 12979 uint32_t cur_len; 12980 uint8_t *tmp_ptr; 12981 12982 rq->command = command; 12983 rq->context = io; 12984 12985 /* 12986 * Both pointers should be aligned. But it is possible 12987 * that the allocation length is not. They should both 12988 * also have enough slack left over at the end, though, 12989 * to round up to the next 8 byte boundary. 12990 */ 12991 cur_len = MIN(local_sglist[i].len - local_used, 12992 remote_sglist[j].len - remote_used); 12993 rq->size = cur_len; 12994 12995 tmp_ptr = (uint8_t *)local_sglist[i].addr; 12996 tmp_ptr += local_used; 12997 12998#if 0 12999 /* Use physical addresses when talking to ISC hardware */ 13000 if ((io->io_hdr.flags & CTL_FLAG_BUS_ADDR) == 0) { 13001 /* XXX KDM use busdma */ 13002 rq->local = vtophys(tmp_ptr); 13003 } else 13004 rq->local = tmp_ptr; 13005#else 13006 KASSERT((io->io_hdr.flags & CTL_FLAG_BUS_ADDR) == 0, 13007 ("HA does not support BUS_ADDR")); 13008 rq->local = tmp_ptr; 13009#endif 13010 13011 tmp_ptr = (uint8_t *)remote_sglist[j].addr; 13012 tmp_ptr += remote_used; 13013 rq->remote = tmp_ptr; 13014 13015 rq->callback = NULL; 13016 13017 local_used += cur_len; 13018 if (local_used >= local_sglist[i].len) { 13019 i++; 13020 local_used = 0; 13021 } 13022 13023 remote_used += cur_len; 13024 if (remote_used >= remote_sglist[j].len) { 13025 j++; 13026 remote_used = 0; 13027 } 13028 total_used += cur_len; 13029 13030 if (total_used >= io->scsiio.kern_data_len) 13031 rq->callback = callback; 13032 13033#if 0 13034 printf("%s: %s: local %p remote %p size %d\n", __func__, 13035 (command == CTL_HA_DT_CMD_WRITE) ? "WRITE" : "READ", 13036 rq->local, rq->remote, rq->size); 13037#endif 13038 13039 isc_ret = ctl_dt_single(rq); 13040 if (isc_ret > CTL_HA_STATUS_SUCCESS) 13041 break; 13042 } 13043 if (isc_ret != CTL_HA_STATUS_WAIT) { 13044 rq->ret = isc_ret; 13045 callback(rq); 13046 } 13047 13048 return (0); 13049} 13050 13051static void 13052ctl_datamove_remote_read(union ctl_io *io) 13053{ 13054 int retval; 13055 uint32_t i; 13056 13057 /* 13058 * This will send an error to the other controller in the case of a 13059 * failure. 13060 */ 13061 retval = ctl_datamove_remote_sgl_setup(io); 13062 if (retval != 0) 13063 return; 13064 13065 retval = ctl_datamove_remote_xfer(io, CTL_HA_DT_CMD_READ, 13066 ctl_datamove_remote_read_cb); 13067 if (retval != 0) { 13068 /* 13069 * Make sure we free memory if there was an error.. The 13070 * ctl_datamove_remote_xfer() function will send the 13071 * datamove done message, or call the callback with an 13072 * error if there is a problem. 13073 */ 13074 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 13075 free(io->io_hdr.local_sglist[i].addr, M_CTL); 13076 free(io->io_hdr.remote_sglist, M_CTL); 13077 io->io_hdr.remote_sglist = NULL; 13078 io->io_hdr.local_sglist = NULL; 13079 } 13080} 13081 13082/* 13083 * Process a datamove request from the other controller. This is used for 13084 * XFER mode only, not SER_ONLY mode. For writes, we DMA into local memory 13085 * first. Once that is complete, the data gets DMAed into the remote 13086 * controller's memory. For reads, we DMA from the remote controller's 13087 * memory into our memory first, and then move it out to the FETD. 13088 */ 13089static void 13090ctl_datamove_remote(union ctl_io *io) 13091{ 13092 13093 mtx_assert(&control_softc->ctl_lock, MA_NOTOWNED); 13094 13095 if (io->io_hdr.flags & CTL_FLAG_FAILOVER) { 13096 ctl_failover_io(io, /*have_lock*/ 0); 13097 return; 13098 } 13099 13100 /* 13101 * Note that we look for an aborted I/O here, but don't do some of 13102 * the other checks that ctl_datamove() normally does. 13103 * We don't need to run the datamove delay code, since that should 13104 * have been done if need be on the other controller. 13105 */ 13106 if (io->io_hdr.flags & CTL_FLAG_ABORT) { 13107 printf("%s: tag 0x%04x on (%u:%u:%u) aborted\n", __func__, 13108 io->scsiio.tag_num, io->io_hdr.nexus.initid, 13109 io->io_hdr.nexus.targ_port, 13110 io->io_hdr.nexus.targ_lun); 13111 io->io_hdr.port_status = 31338; 13112 ctl_send_datamove_done(io, /*have_lock*/ 0); 13113 return; 13114 } 13115 13116 if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_OUT) 13117 ctl_datamove_remote_write(io); 13118 else if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_IN) 13119 ctl_datamove_remote_read(io); 13120 else { 13121 io->io_hdr.port_status = 31339; 13122 ctl_send_datamove_done(io, /*have_lock*/ 0); 13123 } 13124} 13125 13126static void 13127ctl_process_done(union ctl_io *io) 13128{ 13129 struct ctl_lun *lun; 13130 struct ctl_softc *softc = control_softc; 13131 void (*fe_done)(union ctl_io *io); 13132 union ctl_ha_msg msg; 13133 uint32_t targ_port = io->io_hdr.nexus.targ_port; 13134 13135 CTL_DEBUG_PRINT(("ctl_process_done\n")); 13136 fe_done = softc->ctl_ports[targ_port]->fe_done; 13137 13138#ifdef CTL_TIME_IO 13139 if ((time_uptime - io->io_hdr.start_time) > ctl_time_io_secs) { 13140 char str[256]; 13141 char path_str[64]; 13142 struct sbuf sb; 13143 13144 ctl_scsi_path_string(io, path_str, sizeof(path_str)); 13145 sbuf_new(&sb, str, sizeof(str), SBUF_FIXEDLEN); 13146 13147 sbuf_cat(&sb, path_str); 13148 switch (io->io_hdr.io_type) { 13149 case CTL_IO_SCSI: 13150 ctl_scsi_command_string(&io->scsiio, NULL, &sb); 13151 sbuf_printf(&sb, "\n"); 13152 sbuf_cat(&sb, path_str); 13153 sbuf_printf(&sb, "Tag: 0x%04x, type %d\n", 13154 io->scsiio.tag_num, io->scsiio.tag_type); 13155 break; 13156 case CTL_IO_TASK: 13157 sbuf_printf(&sb, "Task I/O type: %d, Tag: 0x%04x, " 13158 "Tag Type: %d\n", io->taskio.task_action, 13159 io->taskio.tag_num, io->taskio.tag_type); 13160 break; 13161 default: 13162 panic("%s: Invalid CTL I/O type %d\n", 13163 __func__, io->io_hdr.io_type); 13164 } 13165 sbuf_cat(&sb, path_str); 13166 sbuf_printf(&sb, "ctl_process_done: %jd seconds\n", 13167 (intmax_t)time_uptime - io->io_hdr.start_time); 13168 sbuf_finish(&sb); 13169 printf("%s", sbuf_data(&sb)); 13170 } 13171#endif /* CTL_TIME_IO */ 13172 13173 switch (io->io_hdr.io_type) { 13174 case CTL_IO_SCSI: 13175 break; 13176 case CTL_IO_TASK: 13177 if (ctl_debug & CTL_DEBUG_INFO) 13178 ctl_io_error_print(io, NULL); 13179 fe_done(io); 13180 return; 13181 default: 13182 panic("%s: Invalid CTL I/O type %d\n", 13183 __func__, io->io_hdr.io_type); 13184 } 13185 13186 lun = (struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 13187 if (lun == NULL) { 13188 CTL_DEBUG_PRINT(("NULL LUN for lun %d\n", 13189 io->io_hdr.nexus.targ_mapped_lun)); 13190 goto bailout; 13191 } 13192 13193 mtx_lock(&lun->lun_lock); 13194 13195 /* 13196 * Check to see if we have any informational exception and status 13197 * of this command can be modified to report it in form of either 13198 * RECOVERED ERROR or NO SENSE, depending on MRIE mode page field. 13199 */ 13200 if (lun->ie_reported == 0 && lun->ie_asc != 0 && 13201 io->io_hdr.status == CTL_SUCCESS && 13202 (io->io_hdr.flags & CTL_FLAG_STATUS_SENT) == 0) { 13203 uint8_t mrie = lun->MODE_IE.mrie; 13204 uint8_t per = ((lun->MODE_RWER.byte3 & SMS_RWER_PER) || 13205 (lun->MODE_VER.byte3 & SMS_VER_PER)); 13206 if (((mrie == SIEP_MRIE_REC_COND && per) || 13207 mrie == SIEP_MRIE_REC_UNCOND || 13208 mrie == SIEP_MRIE_NO_SENSE) && 13209 (ctl_get_cmd_entry(&io->scsiio, NULL)->flags & 13210 CTL_CMD_FLAG_NO_SENSE) == 0) { 13211 ctl_set_sense(&io->scsiio, 13212 /*current_error*/ 1, 13213 /*sense_key*/ (mrie == SIEP_MRIE_NO_SENSE) ? 13214 SSD_KEY_NO_SENSE : SSD_KEY_RECOVERED_ERROR, 13215 /*asc*/ lun->ie_asc, 13216 /*ascq*/ lun->ie_ascq, 13217 SSD_ELEM_NONE); 13218 lun->ie_reported = 1; 13219 } 13220 } else if (lun->ie_reported < 0) 13221 lun->ie_reported = 0; 13222 13223 /* 13224 * Check to see if we have any errors to inject here. We only 13225 * inject errors for commands that don't already have errors set. 13226 */ 13227 if (!STAILQ_EMPTY(&lun->error_list) && 13228 ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS) && 13229 ((io->io_hdr.flags & CTL_FLAG_STATUS_SENT) == 0)) 13230 ctl_inject_error(lun, io); 13231 13232 /* 13233 * XXX KDM how do we treat commands that aren't completed 13234 * successfully? 13235 * 13236 * XXX KDM should we also track I/O latency? 13237 */ 13238 if ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS && 13239 io->io_hdr.io_type == CTL_IO_SCSI) { 13240#ifdef CTL_TIME_IO 13241 struct bintime cur_bt; 13242#endif 13243 int type; 13244 13245 if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == 13246 CTL_FLAG_DATA_IN) 13247 type = CTL_STATS_READ; 13248 else if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == 13249 CTL_FLAG_DATA_OUT) 13250 type = CTL_STATS_WRITE; 13251 else 13252 type = CTL_STATS_NO_IO; 13253 13254 lun->stats.ports[targ_port].bytes[type] += 13255 io->scsiio.kern_total_len; 13256 lun->stats.ports[targ_port].operations[type]++; 13257#ifdef CTL_TIME_IO 13258 bintime_add(&lun->stats.ports[targ_port].dma_time[type], 13259 &io->io_hdr.dma_bt); 13260 getbinuptime(&cur_bt); 13261 bintime_sub(&cur_bt, &io->io_hdr.start_bt); 13262 bintime_add(&lun->stats.ports[targ_port].time[type], &cur_bt); 13263#endif 13264 lun->stats.ports[targ_port].num_dmas[type] += 13265 io->io_hdr.num_dmas; 13266 } 13267 13268 /* 13269 * Remove this from the OOA queue. 13270 */ 13271 TAILQ_REMOVE(&lun->ooa_queue, &io->io_hdr, ooa_links); 13272#ifdef CTL_TIME_IO 13273 if (TAILQ_EMPTY(&lun->ooa_queue)) 13274 lun->last_busy = getsbinuptime(); 13275#endif 13276 13277 /* 13278 * Run through the blocked queue on this LUN and see if anything 13279 * has become unblocked, now that this transaction is done. 13280 */ 13281 ctl_check_blocked(lun); 13282 13283 /* 13284 * If the LUN has been invalidated, free it if there is nothing 13285 * left on its OOA queue. 13286 */ 13287 if ((lun->flags & CTL_LUN_INVALID) 13288 && TAILQ_EMPTY(&lun->ooa_queue)) { 13289 mtx_unlock(&lun->lun_lock); 13290 mtx_lock(&softc->ctl_lock); 13291 ctl_free_lun(lun); 13292 mtx_unlock(&softc->ctl_lock); 13293 } else 13294 mtx_unlock(&lun->lun_lock); 13295 13296bailout: 13297 13298 /* 13299 * If this command has been aborted, make sure we set the status 13300 * properly. The FETD is responsible for freeing the I/O and doing 13301 * whatever it needs to do to clean up its state. 13302 */ 13303 if (io->io_hdr.flags & CTL_FLAG_ABORT) 13304 ctl_set_task_aborted(&io->scsiio); 13305 13306 /* 13307 * If enabled, print command error status. 13308 */ 13309 if ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_SUCCESS && 13310 (ctl_debug & CTL_DEBUG_INFO) != 0) 13311 ctl_io_error_print(io, NULL); 13312 13313 /* 13314 * Tell the FETD or the other shelf controller we're done with this 13315 * command. Note that only SCSI commands get to this point. Task 13316 * management commands are completed above. 13317 */ 13318 if ((softc->ha_mode != CTL_HA_MODE_XFER) && 13319 (io->io_hdr.flags & CTL_FLAG_SENT_2OTHER_SC)) { 13320 memset(&msg, 0, sizeof(msg)); 13321 msg.hdr.msg_type = CTL_MSG_FINISH_IO; 13322 msg.hdr.serializing_sc = io->io_hdr.serializing_sc; 13323 msg.hdr.nexus = io->io_hdr.nexus; 13324 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, 13325 sizeof(msg.scsi) - sizeof(msg.scsi.sense_data), 13326 M_WAITOK); 13327 } 13328 13329 fe_done(io); 13330} 13331 13332#ifdef CTL_WITH_CA 13333/* 13334 * Front end should call this if it doesn't do autosense. When the request 13335 * sense comes back in from the initiator, we'll dequeue this and send it. 13336 */ 13337int 13338ctl_queue_sense(union ctl_io *io) 13339{ 13340 struct ctl_lun *lun; 13341 struct ctl_port *port; 13342 struct ctl_softc *softc; 13343 uint32_t initidx, targ_lun; 13344 13345 softc = control_softc; 13346 13347 CTL_DEBUG_PRINT(("ctl_queue_sense\n")); 13348 13349 /* 13350 * LUN lookup will likely move to the ctl_work_thread() once we 13351 * have our new queueing infrastructure (that doesn't put things on 13352 * a per-LUN queue initially). That is so that we can handle 13353 * things like an INQUIRY to a LUN that we don't have enabled. We 13354 * can't deal with that right now. 13355 */ 13356 mtx_lock(&softc->ctl_lock); 13357 13358 /* 13359 * If we don't have a LUN for this, just toss the sense 13360 * information. 13361 */ 13362 port = ctl_io_port(&ctsio->io_hdr); 13363 targ_lun = ctl_lun_map_from_port(port, io->io_hdr.nexus.targ_lun); 13364 if ((targ_lun < CTL_MAX_LUNS) 13365 && (softc->ctl_luns[targ_lun] != NULL)) 13366 lun = softc->ctl_luns[targ_lun]; 13367 else 13368 goto bailout; 13369 13370 initidx = ctl_get_initindex(&io->io_hdr.nexus); 13371 13372 mtx_lock(&lun->lun_lock); 13373 /* 13374 * Already have CA set for this LUN...toss the sense information. 13375 */ 13376 if (ctl_is_set(lun->have_ca, initidx)) { 13377 mtx_unlock(&lun->lun_lock); 13378 goto bailout; 13379 } 13380 13381 memcpy(&lun->pending_sense[initidx], &io->scsiio.sense_data, 13382 MIN(sizeof(lun->pending_sense[initidx]), 13383 sizeof(io->scsiio.sense_data))); 13384 ctl_set_mask(lun->have_ca, initidx); 13385 mtx_unlock(&lun->lun_lock); 13386 13387bailout: 13388 mtx_unlock(&softc->ctl_lock); 13389 13390 ctl_free_io(io); 13391 13392 return (CTL_RETVAL_COMPLETE); 13393} 13394#endif 13395 13396/* 13397 * Primary command inlet from frontend ports. All SCSI and task I/O 13398 * requests must go through this function. 13399 */ 13400int 13401ctl_queue(union ctl_io *io) 13402{ 13403 struct ctl_port *port; 13404 13405 CTL_DEBUG_PRINT(("ctl_queue cdb[0]=%02X\n", io->scsiio.cdb[0])); 13406 13407#ifdef CTL_TIME_IO 13408 io->io_hdr.start_time = time_uptime; 13409 getbinuptime(&io->io_hdr.start_bt); 13410#endif /* CTL_TIME_IO */ 13411 13412 /* Map FE-specific LUN ID into global one. */ 13413 port = ctl_io_port(&io->io_hdr); 13414 io->io_hdr.nexus.targ_mapped_lun = 13415 ctl_lun_map_from_port(port, io->io_hdr.nexus.targ_lun); 13416 13417 switch (io->io_hdr.io_type) { 13418 case CTL_IO_SCSI: 13419 case CTL_IO_TASK: 13420 if (ctl_debug & CTL_DEBUG_CDB) 13421 ctl_io_print(io); 13422 ctl_enqueue_incoming(io); 13423 break; 13424 default: 13425 printf("ctl_queue: unknown I/O type %d\n", io->io_hdr.io_type); 13426 return (EINVAL); 13427 } 13428 13429 return (CTL_RETVAL_COMPLETE); 13430} 13431 13432#ifdef CTL_IO_DELAY 13433static void 13434ctl_done_timer_wakeup(void *arg) 13435{ 13436 union ctl_io *io; 13437 13438 io = (union ctl_io *)arg; 13439 ctl_done(io); 13440} 13441#endif /* CTL_IO_DELAY */ 13442 13443void 13444ctl_serseq_done(union ctl_io *io) 13445{ 13446 struct ctl_lun *lun; 13447 13448 lun = (struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 13449 if (lun->be_lun == NULL || 13450 lun->be_lun->serseq == CTL_LUN_SERSEQ_OFF) 13451 return; 13452 mtx_lock(&lun->lun_lock); 13453 io->io_hdr.flags |= CTL_FLAG_SERSEQ_DONE; 13454 ctl_check_blocked(lun); 13455 mtx_unlock(&lun->lun_lock); 13456} 13457 13458void 13459ctl_done(union ctl_io *io) 13460{ 13461 13462 /* 13463 * Enable this to catch duplicate completion issues. 13464 */ 13465#if 0 13466 if (io->io_hdr.flags & CTL_FLAG_ALREADY_DONE) { 13467 printf("%s: type %d msg %d cdb %x iptl: " 13468 "%u:%u:%u tag 0x%04x " 13469 "flag %#x status %x\n", 13470 __func__, 13471 io->io_hdr.io_type, 13472 io->io_hdr.msg_type, 13473 io->scsiio.cdb[0], 13474 io->io_hdr.nexus.initid, 13475 io->io_hdr.nexus.targ_port, 13476 io->io_hdr.nexus.targ_lun, 13477 (io->io_hdr.io_type == 13478 CTL_IO_TASK) ? 13479 io->taskio.tag_num : 13480 io->scsiio.tag_num, 13481 io->io_hdr.flags, 13482 io->io_hdr.status); 13483 } else 13484 io->io_hdr.flags |= CTL_FLAG_ALREADY_DONE; 13485#endif 13486 13487 /* 13488 * This is an internal copy of an I/O, and should not go through 13489 * the normal done processing logic. 13490 */ 13491 if (io->io_hdr.flags & CTL_FLAG_INT_COPY) 13492 return; 13493 13494#ifdef CTL_IO_DELAY 13495 if (io->io_hdr.flags & CTL_FLAG_DELAY_DONE) { 13496 io->io_hdr.flags &= ~CTL_FLAG_DELAY_DONE; 13497 } else { 13498 struct ctl_lun *lun; 13499 13500 lun =(struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 13501 13502 if ((lun != NULL) 13503 && (lun->delay_info.done_delay > 0)) { 13504 13505 callout_init(&io->io_hdr.delay_callout, /*mpsafe*/ 1); 13506 io->io_hdr.flags |= CTL_FLAG_DELAY_DONE; 13507 callout_reset(&io->io_hdr.delay_callout, 13508 lun->delay_info.done_delay * hz, 13509 ctl_done_timer_wakeup, io); 13510 if (lun->delay_info.done_type == CTL_DELAY_TYPE_ONESHOT) 13511 lun->delay_info.done_delay = 0; 13512 return; 13513 } 13514 } 13515#endif /* CTL_IO_DELAY */ 13516 13517 ctl_enqueue_done(io); 13518} 13519 13520static void 13521ctl_work_thread(void *arg) 13522{ 13523 struct ctl_thread *thr = (struct ctl_thread *)arg; 13524 struct ctl_softc *softc = thr->ctl_softc; 13525 union ctl_io *io; 13526 int retval; 13527 13528 CTL_DEBUG_PRINT(("ctl_work_thread starting\n")); 13529 13530 for (;;) { 13531 /* 13532 * We handle the queues in this order: 13533 * - ISC 13534 * - done queue (to free up resources, unblock other commands) 13535 * - RtR queue 13536 * - incoming queue 13537 * 13538 * If those queues are empty, we break out of the loop and 13539 * go to sleep. 13540 */ 13541 mtx_lock(&thr->queue_lock); 13542 io = (union ctl_io *)STAILQ_FIRST(&thr->isc_queue); 13543 if (io != NULL) { 13544 STAILQ_REMOVE_HEAD(&thr->isc_queue, links); 13545 mtx_unlock(&thr->queue_lock); 13546 ctl_handle_isc(io); 13547 continue; 13548 } 13549 io = (union ctl_io *)STAILQ_FIRST(&thr->done_queue); 13550 if (io != NULL) { 13551 STAILQ_REMOVE_HEAD(&thr->done_queue, links); 13552 /* clear any blocked commands, call fe_done */ 13553 mtx_unlock(&thr->queue_lock); 13554 ctl_process_done(io); 13555 continue; 13556 } 13557 io = (union ctl_io *)STAILQ_FIRST(&thr->incoming_queue); 13558 if (io != NULL) { 13559 STAILQ_REMOVE_HEAD(&thr->incoming_queue, links); 13560 mtx_unlock(&thr->queue_lock); 13561 if (io->io_hdr.io_type == CTL_IO_TASK) 13562 ctl_run_task(io); 13563 else 13564 ctl_scsiio_precheck(softc, &io->scsiio); 13565 continue; 13566 } 13567 io = (union ctl_io *)STAILQ_FIRST(&thr->rtr_queue); 13568 if (io != NULL) { 13569 STAILQ_REMOVE_HEAD(&thr->rtr_queue, links); 13570 mtx_unlock(&thr->queue_lock); 13571 retval = ctl_scsiio(&io->scsiio); 13572 if (retval != CTL_RETVAL_COMPLETE) 13573 CTL_DEBUG_PRINT(("ctl_scsiio failed\n")); 13574 continue; 13575 } 13576 13577 /* Sleep until we have something to do. */ 13578 mtx_sleep(thr, &thr->queue_lock, PDROP | PRIBIO, "-", 0); 13579 } 13580} 13581 13582static void 13583ctl_lun_thread(void *arg) 13584{ 13585 struct ctl_softc *softc = (struct ctl_softc *)arg; 13586 struct ctl_be_lun *be_lun; 13587 13588 CTL_DEBUG_PRINT(("ctl_lun_thread starting\n")); 13589 13590 for (;;) { 13591 mtx_lock(&softc->ctl_lock); 13592 be_lun = STAILQ_FIRST(&softc->pending_lun_queue); 13593 if (be_lun != NULL) { 13594 STAILQ_REMOVE_HEAD(&softc->pending_lun_queue, links); 13595 mtx_unlock(&softc->ctl_lock); 13596 ctl_create_lun(be_lun); 13597 continue; 13598 } 13599 13600 /* Sleep until we have something to do. */ 13601 mtx_sleep(&softc->pending_lun_queue, &softc->ctl_lock, 13602 PDROP | PRIBIO, "-", 0); 13603 } 13604} 13605 13606static void 13607ctl_thresh_thread(void *arg) 13608{ 13609 struct ctl_softc *softc = (struct ctl_softc *)arg; 13610 struct ctl_lun *lun; 13611 struct ctl_logical_block_provisioning_page *page; 13612 const char *attr; 13613 union ctl_ha_msg msg; 13614 uint64_t thres, val; 13615 int i, e, set; 13616 13617 CTL_DEBUG_PRINT(("ctl_thresh_thread starting\n")); 13618 13619 for (;;) { 13620 mtx_lock(&softc->ctl_lock); 13621 STAILQ_FOREACH(lun, &softc->lun_list, links) { 13622 if ((lun->flags & CTL_LUN_DISABLED) || 13623 (lun->flags & CTL_LUN_NO_MEDIA) || 13624 lun->backend->lun_attr == NULL) 13625 continue; 13626 if ((lun->flags & CTL_LUN_PRIMARY_SC) == 0 && 13627 softc->ha_mode == CTL_HA_MODE_XFER) 13628 continue; 13629 if ((lun->MODE_RWER.byte8 & SMS_RWER_LBPERE) == 0) 13630 continue; 13631 e = 0; 13632 page = &lun->MODE_LBP; 13633 for (i = 0; i < CTL_NUM_LBP_THRESH; i++) { 13634 if ((page->descr[i].flags & SLBPPD_ENABLED) == 0) 13635 continue; 13636 thres = scsi_4btoul(page->descr[i].count); 13637 thres <<= CTL_LBP_EXPONENT; 13638 switch (page->descr[i].resource) { 13639 case 0x01: 13640 attr = "blocksavail"; 13641 break; 13642 case 0x02: 13643 attr = "blocksused"; 13644 break; 13645 case 0xf1: 13646 attr = "poolblocksavail"; 13647 break; 13648 case 0xf2: 13649 attr = "poolblocksused"; 13650 break; 13651 default: 13652 continue; 13653 } 13654 mtx_unlock(&softc->ctl_lock); // XXX 13655 val = lun->backend->lun_attr( 13656 lun->be_lun->be_lun, attr); 13657 mtx_lock(&softc->ctl_lock); 13658 if (val == UINT64_MAX) 13659 continue; 13660 if ((page->descr[i].flags & SLBPPD_ARMING_MASK) 13661 == SLBPPD_ARMING_INC) 13662 e = (val >= thres); 13663 else 13664 e = (val <= thres); 13665 if (e) 13666 break; 13667 } 13668 mtx_lock(&lun->lun_lock); 13669 if (e) { 13670 scsi_u64to8b((uint8_t *)&page->descr[i] - 13671 (uint8_t *)page, lun->ua_tpt_info); 13672 if (lun->lasttpt == 0 || 13673 time_uptime - lun->lasttpt >= CTL_LBP_UA_PERIOD) { 13674 lun->lasttpt = time_uptime; 13675 ctl_est_ua_all(lun, -1, CTL_UA_THIN_PROV_THRES); 13676 set = 1; 13677 } else 13678 set = 0; 13679 } else { 13680 lun->lasttpt = 0; 13681 ctl_clr_ua_all(lun, -1, CTL_UA_THIN_PROV_THRES); 13682 set = -1; 13683 } 13684 mtx_unlock(&lun->lun_lock); 13685 if (set != 0 && 13686 lun->ctl_softc->ha_mode == CTL_HA_MODE_XFER) { 13687 /* Send msg to other side. */ 13688 bzero(&msg.ua, sizeof(msg.ua)); 13689 msg.hdr.msg_type = CTL_MSG_UA; 13690 msg.hdr.nexus.initid = -1; 13691 msg.hdr.nexus.targ_port = -1; 13692 msg.hdr.nexus.targ_lun = lun->lun; 13693 msg.hdr.nexus.targ_mapped_lun = lun->lun; 13694 msg.ua.ua_all = 1; 13695 msg.ua.ua_set = (set > 0); 13696 msg.ua.ua_type = CTL_UA_THIN_PROV_THRES; 13697 memcpy(msg.ua.ua_info, lun->ua_tpt_info, 8); 13698 mtx_unlock(&softc->ctl_lock); // XXX 13699 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, 13700 sizeof(msg.ua), M_WAITOK); 13701 mtx_lock(&softc->ctl_lock); 13702 } 13703 } 13704 mtx_unlock(&softc->ctl_lock); 13705 pause("-", CTL_LBP_PERIOD * hz); 13706 } 13707} 13708 13709static void 13710ctl_enqueue_incoming(union ctl_io *io) 13711{ 13712 struct ctl_softc *softc = control_softc; 13713 struct ctl_thread *thr; 13714 u_int idx; 13715 13716 idx = (io->io_hdr.nexus.targ_port * 127 + 13717 io->io_hdr.nexus.initid) % worker_threads; 13718 thr = &softc->threads[idx]; 13719 mtx_lock(&thr->queue_lock); 13720 STAILQ_INSERT_TAIL(&thr->incoming_queue, &io->io_hdr, links); 13721 mtx_unlock(&thr->queue_lock); 13722 wakeup(thr); 13723} 13724 13725static void 13726ctl_enqueue_rtr(union ctl_io *io) 13727{ 13728 struct ctl_softc *softc = control_softc; 13729 struct ctl_thread *thr; 13730 13731 thr = &softc->threads[io->io_hdr.nexus.targ_mapped_lun % worker_threads]; 13732 mtx_lock(&thr->queue_lock); 13733 STAILQ_INSERT_TAIL(&thr->rtr_queue, &io->io_hdr, links); 13734 mtx_unlock(&thr->queue_lock); 13735 wakeup(thr); 13736} 13737 13738static void 13739ctl_enqueue_done(union ctl_io *io) 13740{ 13741 struct ctl_softc *softc = control_softc; 13742 struct ctl_thread *thr; 13743 13744 thr = &softc->threads[io->io_hdr.nexus.targ_mapped_lun % worker_threads]; 13745 mtx_lock(&thr->queue_lock); 13746 STAILQ_INSERT_TAIL(&thr->done_queue, &io->io_hdr, links); 13747 mtx_unlock(&thr->queue_lock); 13748 wakeup(thr); 13749} 13750 13751static void 13752ctl_enqueue_isc(union ctl_io *io) 13753{ 13754 struct ctl_softc *softc = control_softc; 13755 struct ctl_thread *thr; 13756 13757 thr = &softc->threads[io->io_hdr.nexus.targ_mapped_lun % worker_threads]; 13758 mtx_lock(&thr->queue_lock); 13759 STAILQ_INSERT_TAIL(&thr->isc_queue, &io->io_hdr, links); 13760 mtx_unlock(&thr->queue_lock); 13761 wakeup(thr); 13762} 13763 13764/* 13765 * vim: ts=8 13766 */ 13767