ctl.c revision 311409
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 311409 2017-01-05 11:30:24Z 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 ctl_done((union ctl_io *)ctsio); 5358 goto bailout; 5359 } 5360 5361 lbalen = (struct ctl_lba_len_flags *)&ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 5362 lbalen->lba = starting_lba; 5363 lbalen->len = block_count; 5364 lbalen->flags = byte2; 5365 retval = lun->backend->config_write((union ctl_io *)ctsio); 5366 5367bailout: 5368 return (retval); 5369} 5370 5371int 5372ctl_format(struct ctl_scsiio *ctsio) 5373{ 5374 struct scsi_format *cdb; 5375 struct ctl_lun *lun; 5376 int length, defect_list_len; 5377 5378 CTL_DEBUG_PRINT(("ctl_format\n")); 5379 5380 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5381 5382 cdb = (struct scsi_format *)ctsio->cdb; 5383 5384 length = 0; 5385 if (cdb->byte2 & SF_FMTDATA) { 5386 if (cdb->byte2 & SF_LONGLIST) 5387 length = sizeof(struct scsi_format_header_long); 5388 else 5389 length = sizeof(struct scsi_format_header_short); 5390 } 5391 5392 if (((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) 5393 && (length > 0)) { 5394 ctsio->kern_data_ptr = malloc(length, M_CTL, M_WAITOK); 5395 ctsio->kern_data_len = length; 5396 ctsio->kern_total_len = length; 5397 ctsio->kern_data_resid = 0; 5398 ctsio->kern_rel_offset = 0; 5399 ctsio->kern_sg_entries = 0; 5400 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5401 ctsio->be_move_done = ctl_config_move_done; 5402 ctl_datamove((union ctl_io *)ctsio); 5403 5404 return (CTL_RETVAL_COMPLETE); 5405 } 5406 5407 defect_list_len = 0; 5408 5409 if (cdb->byte2 & SF_FMTDATA) { 5410 if (cdb->byte2 & SF_LONGLIST) { 5411 struct scsi_format_header_long *header; 5412 5413 header = (struct scsi_format_header_long *) 5414 ctsio->kern_data_ptr; 5415 5416 defect_list_len = scsi_4btoul(header->defect_list_len); 5417 if (defect_list_len != 0) { 5418 ctl_set_invalid_field(ctsio, 5419 /*sks_valid*/ 1, 5420 /*command*/ 0, 5421 /*field*/ 2, 5422 /*bit_valid*/ 0, 5423 /*bit*/ 0); 5424 goto bailout; 5425 } 5426 } else { 5427 struct scsi_format_header_short *header; 5428 5429 header = (struct scsi_format_header_short *) 5430 ctsio->kern_data_ptr; 5431 5432 defect_list_len = scsi_2btoul(header->defect_list_len); 5433 if (defect_list_len != 0) { 5434 ctl_set_invalid_field(ctsio, 5435 /*sks_valid*/ 1, 5436 /*command*/ 0, 5437 /*field*/ 2, 5438 /*bit_valid*/ 0, 5439 /*bit*/ 0); 5440 goto bailout; 5441 } 5442 } 5443 } 5444 5445 ctl_set_success(ctsio); 5446bailout: 5447 5448 if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) { 5449 free(ctsio->kern_data_ptr, M_CTL); 5450 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED; 5451 } 5452 5453 ctl_done((union ctl_io *)ctsio); 5454 return (CTL_RETVAL_COMPLETE); 5455} 5456 5457int 5458ctl_read_buffer(struct ctl_scsiio *ctsio) 5459{ 5460 struct ctl_lun *lun; 5461 uint64_t buffer_offset; 5462 uint32_t len; 5463 uint8_t byte2; 5464 static uint8_t descr[4]; 5465 static uint8_t echo_descr[4] = { 0 }; 5466 5467 CTL_DEBUG_PRINT(("ctl_read_buffer\n")); 5468 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5469 switch (ctsio->cdb[0]) { 5470 case READ_BUFFER: { 5471 struct scsi_read_buffer *cdb; 5472 5473 cdb = (struct scsi_read_buffer *)ctsio->cdb; 5474 buffer_offset = scsi_3btoul(cdb->offset); 5475 len = scsi_3btoul(cdb->length); 5476 byte2 = cdb->byte2; 5477 break; 5478 } 5479 case READ_BUFFER_16: { 5480 struct scsi_read_buffer_16 *cdb; 5481 5482 cdb = (struct scsi_read_buffer_16 *)ctsio->cdb; 5483 buffer_offset = scsi_8btou64(cdb->offset); 5484 len = scsi_4btoul(cdb->length); 5485 byte2 = cdb->byte2; 5486 break; 5487 } 5488 default: /* This shouldn't happen. */ 5489 ctl_set_invalid_opcode(ctsio); 5490 ctl_done((union ctl_io *)ctsio); 5491 return (CTL_RETVAL_COMPLETE); 5492 } 5493 5494 if ((byte2 & RWB_MODE) != RWB_MODE_DATA && 5495 (byte2 & RWB_MODE) != RWB_MODE_ECHO_DESCR && 5496 (byte2 & RWB_MODE) != RWB_MODE_DESCR) { 5497 ctl_set_invalid_field(ctsio, 5498 /*sks_valid*/ 1, 5499 /*command*/ 1, 5500 /*field*/ 1, 5501 /*bit_valid*/ 1, 5502 /*bit*/ 4); 5503 ctl_done((union ctl_io *)ctsio); 5504 return (CTL_RETVAL_COMPLETE); 5505 } 5506 5507 if (buffer_offset > CTL_WRITE_BUFFER_SIZE || 5508 buffer_offset + len > CTL_WRITE_BUFFER_SIZE) { 5509 ctl_set_invalid_field(ctsio, 5510 /*sks_valid*/ 1, 5511 /*command*/ 1, 5512 /*field*/ 6, 5513 /*bit_valid*/ 0, 5514 /*bit*/ 0); 5515 ctl_done((union ctl_io *)ctsio); 5516 return (CTL_RETVAL_COMPLETE); 5517 } 5518 5519 if ((byte2 & RWB_MODE) == RWB_MODE_DESCR) { 5520 descr[0] = 0; 5521 scsi_ulto3b(CTL_WRITE_BUFFER_SIZE, &descr[1]); 5522 ctsio->kern_data_ptr = descr; 5523 len = min(len, sizeof(descr)); 5524 } else if ((byte2 & RWB_MODE) == RWB_MODE_ECHO_DESCR) { 5525 ctsio->kern_data_ptr = echo_descr; 5526 len = min(len, sizeof(echo_descr)); 5527 } else { 5528 if (lun->write_buffer == NULL) { 5529 lun->write_buffer = malloc(CTL_WRITE_BUFFER_SIZE, 5530 M_CTL, M_WAITOK); 5531 } 5532 ctsio->kern_data_ptr = lun->write_buffer + buffer_offset; 5533 } 5534 ctsio->kern_data_len = len; 5535 ctsio->kern_total_len = len; 5536 ctsio->kern_data_resid = 0; 5537 ctsio->kern_rel_offset = 0; 5538 ctsio->kern_sg_entries = 0; 5539 ctl_set_success(ctsio); 5540 ctsio->be_move_done = ctl_config_move_done; 5541 ctl_datamove((union ctl_io *)ctsio); 5542 return (CTL_RETVAL_COMPLETE); 5543} 5544 5545int 5546ctl_write_buffer(struct ctl_scsiio *ctsio) 5547{ 5548 struct scsi_write_buffer *cdb; 5549 struct ctl_lun *lun; 5550 int buffer_offset, len; 5551 5552 CTL_DEBUG_PRINT(("ctl_write_buffer\n")); 5553 5554 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5555 cdb = (struct scsi_write_buffer *)ctsio->cdb; 5556 5557 if ((cdb->byte2 & RWB_MODE) != RWB_MODE_DATA) { 5558 ctl_set_invalid_field(ctsio, 5559 /*sks_valid*/ 1, 5560 /*command*/ 1, 5561 /*field*/ 1, 5562 /*bit_valid*/ 1, 5563 /*bit*/ 4); 5564 ctl_done((union ctl_io *)ctsio); 5565 return (CTL_RETVAL_COMPLETE); 5566 } 5567 5568 len = scsi_3btoul(cdb->length); 5569 buffer_offset = scsi_3btoul(cdb->offset); 5570 5571 if (buffer_offset + len > CTL_WRITE_BUFFER_SIZE) { 5572 ctl_set_invalid_field(ctsio, 5573 /*sks_valid*/ 1, 5574 /*command*/ 1, 5575 /*field*/ 6, 5576 /*bit_valid*/ 0, 5577 /*bit*/ 0); 5578 ctl_done((union ctl_io *)ctsio); 5579 return (CTL_RETVAL_COMPLETE); 5580 } 5581 5582 /* 5583 * If we've got a kernel request that hasn't been malloced yet, 5584 * malloc it and tell the caller the data buffer is here. 5585 */ 5586 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 5587 if (lun->write_buffer == NULL) { 5588 lun->write_buffer = malloc(CTL_WRITE_BUFFER_SIZE, 5589 M_CTL, M_WAITOK); 5590 } 5591 ctsio->kern_data_ptr = lun->write_buffer + buffer_offset; 5592 ctsio->kern_data_len = len; 5593 ctsio->kern_total_len = len; 5594 ctsio->kern_data_resid = 0; 5595 ctsio->kern_rel_offset = 0; 5596 ctsio->kern_sg_entries = 0; 5597 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5598 ctsio->be_move_done = ctl_config_move_done; 5599 ctl_datamove((union ctl_io *)ctsio); 5600 5601 return (CTL_RETVAL_COMPLETE); 5602 } 5603 5604 ctl_set_success(ctsio); 5605 ctl_done((union ctl_io *)ctsio); 5606 return (CTL_RETVAL_COMPLETE); 5607} 5608 5609int 5610ctl_write_same(struct ctl_scsiio *ctsio) 5611{ 5612 struct ctl_lun *lun; 5613 struct ctl_lba_len_flags *lbalen; 5614 uint64_t lba; 5615 uint32_t num_blocks; 5616 int len, retval; 5617 uint8_t byte2; 5618 5619 CTL_DEBUG_PRINT(("ctl_write_same\n")); 5620 5621 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5622 5623 switch (ctsio->cdb[0]) { 5624 case WRITE_SAME_10: { 5625 struct scsi_write_same_10 *cdb; 5626 5627 cdb = (struct scsi_write_same_10 *)ctsio->cdb; 5628 5629 lba = scsi_4btoul(cdb->addr); 5630 num_blocks = scsi_2btoul(cdb->length); 5631 byte2 = cdb->byte2; 5632 break; 5633 } 5634 case WRITE_SAME_16: { 5635 struct scsi_write_same_16 *cdb; 5636 5637 cdb = (struct scsi_write_same_16 *)ctsio->cdb; 5638 5639 lba = scsi_8btou64(cdb->addr); 5640 num_blocks = scsi_4btoul(cdb->length); 5641 byte2 = cdb->byte2; 5642 break; 5643 } 5644 default: 5645 /* 5646 * We got a command we don't support. This shouldn't 5647 * happen, commands should be filtered out above us. 5648 */ 5649 ctl_set_invalid_opcode(ctsio); 5650 ctl_done((union ctl_io *)ctsio); 5651 5652 return (CTL_RETVAL_COMPLETE); 5653 break; /* NOTREACHED */ 5654 } 5655 5656 /* ANCHOR flag can be used only together with UNMAP */ 5657 if ((byte2 & SWS_UNMAP) == 0 && (byte2 & SWS_ANCHOR) != 0) { 5658 ctl_set_invalid_field(ctsio, /*sks_valid*/ 1, 5659 /*command*/ 1, /*field*/ 1, /*bit_valid*/ 1, /*bit*/ 0); 5660 ctl_done((union ctl_io *)ctsio); 5661 return (CTL_RETVAL_COMPLETE); 5662 } 5663 5664 /* 5665 * The first check is to make sure we're in bounds, the second 5666 * check is to catch wrap-around problems. If the lba + num blocks 5667 * is less than the lba, then we've wrapped around and the block 5668 * range is invalid anyway. 5669 */ 5670 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 5671 || ((lba + num_blocks) < lba)) { 5672 ctl_set_lba_out_of_range(ctsio); 5673 ctl_done((union ctl_io *)ctsio); 5674 return (CTL_RETVAL_COMPLETE); 5675 } 5676 5677 /* Zero number of blocks means "to the last logical block" */ 5678 if (num_blocks == 0) { 5679 if ((lun->be_lun->maxlba + 1) - lba > UINT32_MAX) { 5680 ctl_set_invalid_field(ctsio, 5681 /*sks_valid*/ 0, 5682 /*command*/ 1, 5683 /*field*/ 0, 5684 /*bit_valid*/ 0, 5685 /*bit*/ 0); 5686 ctl_done((union ctl_io *)ctsio); 5687 return (CTL_RETVAL_COMPLETE); 5688 } 5689 num_blocks = (lun->be_lun->maxlba + 1) - lba; 5690 } 5691 5692 len = lun->be_lun->blocksize; 5693 5694 /* 5695 * If we've got a kernel request that hasn't been malloced yet, 5696 * malloc it and tell the caller the data buffer is here. 5697 */ 5698 if ((byte2 & SWS_NDOB) == 0 && 5699 (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 5700 ctsio->kern_data_ptr = malloc(len, M_CTL, M_WAITOK); 5701 ctsio->kern_data_len = len; 5702 ctsio->kern_total_len = len; 5703 ctsio->kern_data_resid = 0; 5704 ctsio->kern_rel_offset = 0; 5705 ctsio->kern_sg_entries = 0; 5706 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5707 ctsio->be_move_done = ctl_config_move_done; 5708 ctl_datamove((union ctl_io *)ctsio); 5709 5710 return (CTL_RETVAL_COMPLETE); 5711 } 5712 5713 lbalen = (struct ctl_lba_len_flags *)&ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 5714 lbalen->lba = lba; 5715 lbalen->len = num_blocks; 5716 lbalen->flags = byte2; 5717 retval = lun->backend->config_write((union ctl_io *)ctsio); 5718 5719 return (retval); 5720} 5721 5722int 5723ctl_unmap(struct ctl_scsiio *ctsio) 5724{ 5725 struct ctl_lun *lun; 5726 struct scsi_unmap *cdb; 5727 struct ctl_ptr_len_flags *ptrlen; 5728 struct scsi_unmap_header *hdr; 5729 struct scsi_unmap_desc *buf, *end, *endnz, *range; 5730 uint64_t lba; 5731 uint32_t num_blocks; 5732 int len, retval; 5733 uint8_t byte2; 5734 5735 CTL_DEBUG_PRINT(("ctl_unmap\n")); 5736 5737 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5738 cdb = (struct scsi_unmap *)ctsio->cdb; 5739 5740 len = scsi_2btoul(cdb->length); 5741 byte2 = cdb->byte2; 5742 5743 /* 5744 * If we've got a kernel request that hasn't been malloced yet, 5745 * malloc it and tell the caller the data buffer is here. 5746 */ 5747 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 5748 ctsio->kern_data_ptr = malloc(len, M_CTL, M_WAITOK); 5749 ctsio->kern_data_len = len; 5750 ctsio->kern_total_len = len; 5751 ctsio->kern_data_resid = 0; 5752 ctsio->kern_rel_offset = 0; 5753 ctsio->kern_sg_entries = 0; 5754 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5755 ctsio->be_move_done = ctl_config_move_done; 5756 ctl_datamove((union ctl_io *)ctsio); 5757 5758 return (CTL_RETVAL_COMPLETE); 5759 } 5760 5761 len = ctsio->kern_total_len - ctsio->kern_data_resid; 5762 hdr = (struct scsi_unmap_header *)ctsio->kern_data_ptr; 5763 if (len < sizeof (*hdr) || 5764 len < (scsi_2btoul(hdr->length) + sizeof(hdr->length)) || 5765 len < (scsi_2btoul(hdr->desc_length) + sizeof (*hdr)) || 5766 scsi_2btoul(hdr->desc_length) % sizeof(*buf) != 0) { 5767 ctl_set_invalid_field(ctsio, 5768 /*sks_valid*/ 0, 5769 /*command*/ 0, 5770 /*field*/ 0, 5771 /*bit_valid*/ 0, 5772 /*bit*/ 0); 5773 goto done; 5774 } 5775 len = scsi_2btoul(hdr->desc_length); 5776 buf = (struct scsi_unmap_desc *)(hdr + 1); 5777 end = buf + len / sizeof(*buf); 5778 5779 endnz = buf; 5780 for (range = buf; range < end; range++) { 5781 lba = scsi_8btou64(range->lba); 5782 num_blocks = scsi_4btoul(range->length); 5783 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 5784 || ((lba + num_blocks) < lba)) { 5785 ctl_set_lba_out_of_range(ctsio); 5786 ctl_done((union ctl_io *)ctsio); 5787 return (CTL_RETVAL_COMPLETE); 5788 } 5789 if (num_blocks != 0) 5790 endnz = range + 1; 5791 } 5792 5793 /* 5794 * Block backend can not handle zero last range. 5795 * Filter it out and return if there is nothing left. 5796 */ 5797 len = (uint8_t *)endnz - (uint8_t *)buf; 5798 if (len == 0) { 5799 ctl_set_success(ctsio); 5800 goto done; 5801 } 5802 5803 mtx_lock(&lun->lun_lock); 5804 ptrlen = (struct ctl_ptr_len_flags *) 5805 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 5806 ptrlen->ptr = (void *)buf; 5807 ptrlen->len = len; 5808 ptrlen->flags = byte2; 5809 ctl_check_blocked(lun); 5810 mtx_unlock(&lun->lun_lock); 5811 5812 retval = lun->backend->config_write((union ctl_io *)ctsio); 5813 return (retval); 5814 5815done: 5816 if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) { 5817 free(ctsio->kern_data_ptr, M_CTL); 5818 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED; 5819 } 5820 ctl_done((union ctl_io *)ctsio); 5821 return (CTL_RETVAL_COMPLETE); 5822} 5823 5824int 5825ctl_default_page_handler(struct ctl_scsiio *ctsio, 5826 struct ctl_page_index *page_index, uint8_t *page_ptr) 5827{ 5828 struct ctl_lun *lun; 5829 uint8_t *current_cp, *saved_cp; 5830 int set_ua; 5831 uint32_t initidx; 5832 5833 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5834 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 5835 set_ua = 0; 5836 5837 current_cp = (page_index->page_data + (page_index->page_len * 5838 CTL_PAGE_CURRENT)); 5839 saved_cp = (page_index->page_data + (page_index->page_len * 5840 CTL_PAGE_SAVED)); 5841 5842 mtx_lock(&lun->lun_lock); 5843 if (memcmp(current_cp, page_ptr, page_index->page_len)) { 5844 memcpy(current_cp, page_ptr, page_index->page_len); 5845 memcpy(saved_cp, page_ptr, page_index->page_len); 5846 set_ua = 1; 5847 } 5848 if (set_ua != 0) 5849 ctl_est_ua_all(lun, initidx, CTL_UA_MODE_CHANGE); 5850 mtx_unlock(&lun->lun_lock); 5851 if (set_ua) { 5852 ctl_isc_announce_mode(lun, 5853 ctl_get_initindex(&ctsio->io_hdr.nexus), 5854 page_index->page_code, page_index->subpage); 5855 } 5856 return (CTL_RETVAL_COMPLETE); 5857} 5858 5859static void 5860ctl_ie_timer(void *arg) 5861{ 5862 struct ctl_lun *lun = arg; 5863 uint64_t t; 5864 5865 if (lun->ie_asc == 0) 5866 return; 5867 5868 if (lun->MODE_IE.mrie == SIEP_MRIE_UA) 5869 ctl_est_ua_all(lun, -1, CTL_UA_IE); 5870 else 5871 lun->ie_reported = 0; 5872 5873 if (lun->ie_reportcnt < scsi_4btoul(lun->MODE_IE.report_count)) { 5874 lun->ie_reportcnt++; 5875 t = scsi_4btoul(lun->MODE_IE.interval_timer); 5876 if (t == 0 || t == UINT32_MAX) 5877 t = 3000; /* 5 min */ 5878 callout_schedule(&lun->ie_callout, t * hz / 10); 5879 } 5880} 5881 5882int 5883ctl_ie_page_handler(struct ctl_scsiio *ctsio, 5884 struct ctl_page_index *page_index, uint8_t *page_ptr) 5885{ 5886 struct scsi_info_exceptions_page *pg; 5887 struct ctl_lun *lun; 5888 uint64_t t; 5889 5890 (void)ctl_default_page_handler(ctsio, page_index, page_ptr); 5891 5892 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5893 pg = (struct scsi_info_exceptions_page *)page_ptr; 5894 mtx_lock(&lun->lun_lock); 5895 if (pg->info_flags & SIEP_FLAGS_TEST) { 5896 lun->ie_asc = 0x5d; 5897 lun->ie_ascq = 0xff; 5898 if (pg->mrie == SIEP_MRIE_UA) { 5899 ctl_est_ua_all(lun, -1, CTL_UA_IE); 5900 lun->ie_reported = 1; 5901 } else { 5902 ctl_clr_ua_all(lun, -1, CTL_UA_IE); 5903 lun->ie_reported = -1; 5904 } 5905 lun->ie_reportcnt = 1; 5906 if (lun->ie_reportcnt < scsi_4btoul(pg->report_count)) { 5907 lun->ie_reportcnt++; 5908 t = scsi_4btoul(pg->interval_timer); 5909 if (t == 0 || t == UINT32_MAX) 5910 t = 3000; /* 5 min */ 5911 callout_reset(&lun->ie_callout, t * hz / 10, 5912 ctl_ie_timer, lun); 5913 } 5914 } else { 5915 lun->ie_asc = 0; 5916 lun->ie_ascq = 0; 5917 lun->ie_reported = 1; 5918 ctl_clr_ua_all(lun, -1, CTL_UA_IE); 5919 lun->ie_reportcnt = UINT32_MAX; 5920 callout_stop(&lun->ie_callout); 5921 } 5922 mtx_unlock(&lun->lun_lock); 5923 return (CTL_RETVAL_COMPLETE); 5924} 5925 5926static int 5927ctl_do_mode_select(union ctl_io *io) 5928{ 5929 struct scsi_mode_page_header *page_header; 5930 struct ctl_page_index *page_index; 5931 struct ctl_scsiio *ctsio; 5932 int page_len, page_len_offset, page_len_size; 5933 union ctl_modepage_info *modepage_info; 5934 struct ctl_lun *lun; 5935 int *len_left, *len_used; 5936 int retval, i; 5937 5938 ctsio = &io->scsiio; 5939 page_index = NULL; 5940 page_len = 0; 5941 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5942 5943 modepage_info = (union ctl_modepage_info *) 5944 ctsio->io_hdr.ctl_private[CTL_PRIV_MODEPAGE].bytes; 5945 len_left = &modepage_info->header.len_left; 5946 len_used = &modepage_info->header.len_used; 5947 5948do_next_page: 5949 5950 page_header = (struct scsi_mode_page_header *) 5951 (ctsio->kern_data_ptr + *len_used); 5952 5953 if (*len_left == 0) { 5954 free(ctsio->kern_data_ptr, M_CTL); 5955 ctl_set_success(ctsio); 5956 ctl_done((union ctl_io *)ctsio); 5957 return (CTL_RETVAL_COMPLETE); 5958 } else if (*len_left < sizeof(struct scsi_mode_page_header)) { 5959 5960 free(ctsio->kern_data_ptr, M_CTL); 5961 ctl_set_param_len_error(ctsio); 5962 ctl_done((union ctl_io *)ctsio); 5963 return (CTL_RETVAL_COMPLETE); 5964 5965 } else if ((page_header->page_code & SMPH_SPF) 5966 && (*len_left < sizeof(struct scsi_mode_page_header_sp))) { 5967 5968 free(ctsio->kern_data_ptr, M_CTL); 5969 ctl_set_param_len_error(ctsio); 5970 ctl_done((union ctl_io *)ctsio); 5971 return (CTL_RETVAL_COMPLETE); 5972 } 5973 5974 5975 /* 5976 * XXX KDM should we do something with the block descriptor? 5977 */ 5978 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 5979 page_index = &lun->mode_pages.index[i]; 5980 if (lun->be_lun->lun_type == T_DIRECT && 5981 (page_index->page_flags & CTL_PAGE_FLAG_DIRECT) == 0) 5982 continue; 5983 if (lun->be_lun->lun_type == T_PROCESSOR && 5984 (page_index->page_flags & CTL_PAGE_FLAG_PROC) == 0) 5985 continue; 5986 if (lun->be_lun->lun_type == T_CDROM && 5987 (page_index->page_flags & CTL_PAGE_FLAG_CDROM) == 0) 5988 continue; 5989 5990 if ((page_index->page_code & SMPH_PC_MASK) != 5991 (page_header->page_code & SMPH_PC_MASK)) 5992 continue; 5993 5994 /* 5995 * If neither page has a subpage code, then we've got a 5996 * match. 5997 */ 5998 if (((page_index->page_code & SMPH_SPF) == 0) 5999 && ((page_header->page_code & SMPH_SPF) == 0)) { 6000 page_len = page_header->page_length; 6001 break; 6002 } 6003 6004 /* 6005 * If both pages have subpages, then the subpage numbers 6006 * have to match. 6007 */ 6008 if ((page_index->page_code & SMPH_SPF) 6009 && (page_header->page_code & SMPH_SPF)) { 6010 struct scsi_mode_page_header_sp *sph; 6011 6012 sph = (struct scsi_mode_page_header_sp *)page_header; 6013 if (page_index->subpage == sph->subpage) { 6014 page_len = scsi_2btoul(sph->page_length); 6015 break; 6016 } 6017 } 6018 } 6019 6020 /* 6021 * If we couldn't find the page, or if we don't have a mode select 6022 * handler for it, send back an error to the user. 6023 */ 6024 if ((i >= CTL_NUM_MODE_PAGES) 6025 || (page_index->select_handler == NULL)) { 6026 ctl_set_invalid_field(ctsio, 6027 /*sks_valid*/ 1, 6028 /*command*/ 0, 6029 /*field*/ *len_used, 6030 /*bit_valid*/ 0, 6031 /*bit*/ 0); 6032 free(ctsio->kern_data_ptr, M_CTL); 6033 ctl_done((union ctl_io *)ctsio); 6034 return (CTL_RETVAL_COMPLETE); 6035 } 6036 6037 if (page_index->page_code & SMPH_SPF) { 6038 page_len_offset = 2; 6039 page_len_size = 2; 6040 } else { 6041 page_len_size = 1; 6042 page_len_offset = 1; 6043 } 6044 6045 /* 6046 * If the length the initiator gives us isn't the one we specify in 6047 * the mode page header, or if they didn't specify enough data in 6048 * the CDB to avoid truncating this page, kick out the request. 6049 */ 6050 if ((page_len != (page_index->page_len - page_len_offset - 6051 page_len_size)) 6052 || (*len_left < page_index->page_len)) { 6053 6054 6055 ctl_set_invalid_field(ctsio, 6056 /*sks_valid*/ 1, 6057 /*command*/ 0, 6058 /*field*/ *len_used + page_len_offset, 6059 /*bit_valid*/ 0, 6060 /*bit*/ 0); 6061 free(ctsio->kern_data_ptr, M_CTL); 6062 ctl_done((union ctl_io *)ctsio); 6063 return (CTL_RETVAL_COMPLETE); 6064 } 6065 6066 /* 6067 * Run through the mode page, checking to make sure that the bits 6068 * the user changed are actually legal for him to change. 6069 */ 6070 for (i = 0; i < page_index->page_len; i++) { 6071 uint8_t *user_byte, *change_mask, *current_byte; 6072 int bad_bit; 6073 int j; 6074 6075 user_byte = (uint8_t *)page_header + i; 6076 change_mask = page_index->page_data + 6077 (page_index->page_len * CTL_PAGE_CHANGEABLE) + i; 6078 current_byte = page_index->page_data + 6079 (page_index->page_len * CTL_PAGE_CURRENT) + i; 6080 6081 /* 6082 * Check to see whether the user set any bits in this byte 6083 * that he is not allowed to set. 6084 */ 6085 if ((*user_byte & ~(*change_mask)) == 6086 (*current_byte & ~(*change_mask))) 6087 continue; 6088 6089 /* 6090 * Go through bit by bit to determine which one is illegal. 6091 */ 6092 bad_bit = 0; 6093 for (j = 7; j >= 0; j--) { 6094 if ((((1 << i) & ~(*change_mask)) & *user_byte) != 6095 (((1 << i) & ~(*change_mask)) & *current_byte)) { 6096 bad_bit = i; 6097 break; 6098 } 6099 } 6100 ctl_set_invalid_field(ctsio, 6101 /*sks_valid*/ 1, 6102 /*command*/ 0, 6103 /*field*/ *len_used + i, 6104 /*bit_valid*/ 1, 6105 /*bit*/ bad_bit); 6106 free(ctsio->kern_data_ptr, M_CTL); 6107 ctl_done((union ctl_io *)ctsio); 6108 return (CTL_RETVAL_COMPLETE); 6109 } 6110 6111 /* 6112 * Decrement these before we call the page handler, since we may 6113 * end up getting called back one way or another before the handler 6114 * returns to this context. 6115 */ 6116 *len_left -= page_index->page_len; 6117 *len_used += page_index->page_len; 6118 6119 retval = page_index->select_handler(ctsio, page_index, 6120 (uint8_t *)page_header); 6121 6122 /* 6123 * If the page handler returns CTL_RETVAL_QUEUED, then we need to 6124 * wait until this queued command completes to finish processing 6125 * the mode page. If it returns anything other than 6126 * CTL_RETVAL_COMPLETE (e.g. CTL_RETVAL_ERROR), then it should have 6127 * already set the sense information, freed the data pointer, and 6128 * completed the io for us. 6129 */ 6130 if (retval != CTL_RETVAL_COMPLETE) 6131 goto bailout_no_done; 6132 6133 /* 6134 * If the initiator sent us more than one page, parse the next one. 6135 */ 6136 if (*len_left > 0) 6137 goto do_next_page; 6138 6139 ctl_set_success(ctsio); 6140 free(ctsio->kern_data_ptr, M_CTL); 6141 ctl_done((union ctl_io *)ctsio); 6142 6143bailout_no_done: 6144 6145 return (CTL_RETVAL_COMPLETE); 6146 6147} 6148 6149int 6150ctl_mode_select(struct ctl_scsiio *ctsio) 6151{ 6152 int param_len, pf, sp; 6153 int header_size, bd_len; 6154 union ctl_modepage_info *modepage_info; 6155 6156 switch (ctsio->cdb[0]) { 6157 case MODE_SELECT_6: { 6158 struct scsi_mode_select_6 *cdb; 6159 6160 cdb = (struct scsi_mode_select_6 *)ctsio->cdb; 6161 6162 pf = (cdb->byte2 & SMS_PF) ? 1 : 0; 6163 sp = (cdb->byte2 & SMS_SP) ? 1 : 0; 6164 param_len = cdb->length; 6165 header_size = sizeof(struct scsi_mode_header_6); 6166 break; 6167 } 6168 case MODE_SELECT_10: { 6169 struct scsi_mode_select_10 *cdb; 6170 6171 cdb = (struct scsi_mode_select_10 *)ctsio->cdb; 6172 6173 pf = (cdb->byte2 & SMS_PF) ? 1 : 0; 6174 sp = (cdb->byte2 & SMS_SP) ? 1 : 0; 6175 param_len = scsi_2btoul(cdb->length); 6176 header_size = sizeof(struct scsi_mode_header_10); 6177 break; 6178 } 6179 default: 6180 ctl_set_invalid_opcode(ctsio); 6181 ctl_done((union ctl_io *)ctsio); 6182 return (CTL_RETVAL_COMPLETE); 6183 } 6184 6185 /* 6186 * From SPC-3: 6187 * "A parameter list length of zero indicates that the Data-Out Buffer 6188 * shall be empty. This condition shall not be considered as an error." 6189 */ 6190 if (param_len == 0) { 6191 ctl_set_success(ctsio); 6192 ctl_done((union ctl_io *)ctsio); 6193 return (CTL_RETVAL_COMPLETE); 6194 } 6195 6196 /* 6197 * Since we'll hit this the first time through, prior to 6198 * allocation, we don't need to free a data buffer here. 6199 */ 6200 if (param_len < header_size) { 6201 ctl_set_param_len_error(ctsio); 6202 ctl_done((union ctl_io *)ctsio); 6203 return (CTL_RETVAL_COMPLETE); 6204 } 6205 6206 /* 6207 * Allocate the data buffer and grab the user's data. In theory, 6208 * we shouldn't have to sanity check the parameter list length here 6209 * because the maximum size is 64K. We should be able to malloc 6210 * that much without too many problems. 6211 */ 6212 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 6213 ctsio->kern_data_ptr = malloc(param_len, M_CTL, M_WAITOK); 6214 ctsio->kern_data_len = param_len; 6215 ctsio->kern_total_len = param_len; 6216 ctsio->kern_data_resid = 0; 6217 ctsio->kern_rel_offset = 0; 6218 ctsio->kern_sg_entries = 0; 6219 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6220 ctsio->be_move_done = ctl_config_move_done; 6221 ctl_datamove((union ctl_io *)ctsio); 6222 6223 return (CTL_RETVAL_COMPLETE); 6224 } 6225 6226 switch (ctsio->cdb[0]) { 6227 case MODE_SELECT_6: { 6228 struct scsi_mode_header_6 *mh6; 6229 6230 mh6 = (struct scsi_mode_header_6 *)ctsio->kern_data_ptr; 6231 bd_len = mh6->blk_desc_len; 6232 break; 6233 } 6234 case MODE_SELECT_10: { 6235 struct scsi_mode_header_10 *mh10; 6236 6237 mh10 = (struct scsi_mode_header_10 *)ctsio->kern_data_ptr; 6238 bd_len = scsi_2btoul(mh10->blk_desc_len); 6239 break; 6240 } 6241 default: 6242 panic("%s: Invalid CDB type %#x", __func__, ctsio->cdb[0]); 6243 } 6244 6245 if (param_len < (header_size + bd_len)) { 6246 free(ctsio->kern_data_ptr, M_CTL); 6247 ctl_set_param_len_error(ctsio); 6248 ctl_done((union ctl_io *)ctsio); 6249 return (CTL_RETVAL_COMPLETE); 6250 } 6251 6252 /* 6253 * Set the IO_CONT flag, so that if this I/O gets passed to 6254 * ctl_config_write_done(), it'll get passed back to 6255 * ctl_do_mode_select() for further processing, or completion if 6256 * we're all done. 6257 */ 6258 ctsio->io_hdr.flags |= CTL_FLAG_IO_CONT; 6259 ctsio->io_cont = ctl_do_mode_select; 6260 6261 modepage_info = (union ctl_modepage_info *) 6262 ctsio->io_hdr.ctl_private[CTL_PRIV_MODEPAGE].bytes; 6263 memset(modepage_info, 0, sizeof(*modepage_info)); 6264 modepage_info->header.len_left = param_len - header_size - bd_len; 6265 modepage_info->header.len_used = header_size + bd_len; 6266 6267 return (ctl_do_mode_select((union ctl_io *)ctsio)); 6268} 6269 6270int 6271ctl_mode_sense(struct ctl_scsiio *ctsio) 6272{ 6273 struct ctl_lun *lun; 6274 int pc, page_code, dbd, llba, subpage; 6275 int alloc_len, page_len, header_len, total_len; 6276 struct scsi_mode_block_descr *block_desc; 6277 struct ctl_page_index *page_index; 6278 6279 dbd = 0; 6280 llba = 0; 6281 block_desc = NULL; 6282 6283 CTL_DEBUG_PRINT(("ctl_mode_sense\n")); 6284 6285 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6286 switch (ctsio->cdb[0]) { 6287 case MODE_SENSE_6: { 6288 struct scsi_mode_sense_6 *cdb; 6289 6290 cdb = (struct scsi_mode_sense_6 *)ctsio->cdb; 6291 6292 header_len = sizeof(struct scsi_mode_hdr_6); 6293 if (cdb->byte2 & SMS_DBD) 6294 dbd = 1; 6295 else 6296 header_len += sizeof(struct scsi_mode_block_descr); 6297 6298 pc = (cdb->page & SMS_PAGE_CTRL_MASK) >> 6; 6299 page_code = cdb->page & SMS_PAGE_CODE; 6300 subpage = cdb->subpage; 6301 alloc_len = cdb->length; 6302 break; 6303 } 6304 case MODE_SENSE_10: { 6305 struct scsi_mode_sense_10 *cdb; 6306 6307 cdb = (struct scsi_mode_sense_10 *)ctsio->cdb; 6308 6309 header_len = sizeof(struct scsi_mode_hdr_10); 6310 6311 if (cdb->byte2 & SMS_DBD) 6312 dbd = 1; 6313 else 6314 header_len += sizeof(struct scsi_mode_block_descr); 6315 if (cdb->byte2 & SMS10_LLBAA) 6316 llba = 1; 6317 pc = (cdb->page & SMS_PAGE_CTRL_MASK) >> 6; 6318 page_code = cdb->page & SMS_PAGE_CODE; 6319 subpage = cdb->subpage; 6320 alloc_len = scsi_2btoul(cdb->length); 6321 break; 6322 } 6323 default: 6324 ctl_set_invalid_opcode(ctsio); 6325 ctl_done((union ctl_io *)ctsio); 6326 return (CTL_RETVAL_COMPLETE); 6327 break; /* NOTREACHED */ 6328 } 6329 6330 /* 6331 * We have to make a first pass through to calculate the size of 6332 * the pages that match the user's query. Then we allocate enough 6333 * memory to hold it, and actually copy the data into the buffer. 6334 */ 6335 switch (page_code) { 6336 case SMS_ALL_PAGES_PAGE: { 6337 u_int i; 6338 6339 page_len = 0; 6340 6341 /* 6342 * At the moment, values other than 0 and 0xff here are 6343 * reserved according to SPC-3. 6344 */ 6345 if ((subpage != SMS_SUBPAGE_PAGE_0) 6346 && (subpage != SMS_SUBPAGE_ALL)) { 6347 ctl_set_invalid_field(ctsio, 6348 /*sks_valid*/ 1, 6349 /*command*/ 1, 6350 /*field*/ 3, 6351 /*bit_valid*/ 0, 6352 /*bit*/ 0); 6353 ctl_done((union ctl_io *)ctsio); 6354 return (CTL_RETVAL_COMPLETE); 6355 } 6356 6357 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6358 page_index = &lun->mode_pages.index[i]; 6359 6360 /* Make sure the page is supported for this dev type */ 6361 if (lun->be_lun->lun_type == T_DIRECT && 6362 (page_index->page_flags & CTL_PAGE_FLAG_DIRECT) == 0) 6363 continue; 6364 if (lun->be_lun->lun_type == T_PROCESSOR && 6365 (page_index->page_flags & CTL_PAGE_FLAG_PROC) == 0) 6366 continue; 6367 if (lun->be_lun->lun_type == T_CDROM && 6368 (page_index->page_flags & CTL_PAGE_FLAG_CDROM) == 0) 6369 continue; 6370 6371 /* 6372 * We don't use this subpage if the user didn't 6373 * request all subpages. 6374 */ 6375 if ((page_index->subpage != 0) 6376 && (subpage == SMS_SUBPAGE_PAGE_0)) 6377 continue; 6378 6379#if 0 6380 printf("found page %#x len %d\n", 6381 page_index->page_code & SMPH_PC_MASK, 6382 page_index->page_len); 6383#endif 6384 page_len += page_index->page_len; 6385 } 6386 break; 6387 } 6388 default: { 6389 u_int i; 6390 6391 page_len = 0; 6392 6393 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6394 page_index = &lun->mode_pages.index[i]; 6395 6396 /* Make sure the page is supported for this dev type */ 6397 if (lun->be_lun->lun_type == T_DIRECT && 6398 (page_index->page_flags & CTL_PAGE_FLAG_DIRECT) == 0) 6399 continue; 6400 if (lun->be_lun->lun_type == T_PROCESSOR && 6401 (page_index->page_flags & CTL_PAGE_FLAG_PROC) == 0) 6402 continue; 6403 if (lun->be_lun->lun_type == T_CDROM && 6404 (page_index->page_flags & CTL_PAGE_FLAG_CDROM) == 0) 6405 continue; 6406 6407 /* Look for the right page code */ 6408 if ((page_index->page_code & SMPH_PC_MASK) != page_code) 6409 continue; 6410 6411 /* Look for the right subpage or the subpage wildcard*/ 6412 if ((page_index->subpage != subpage) 6413 && (subpage != SMS_SUBPAGE_ALL)) 6414 continue; 6415 6416#if 0 6417 printf("found page %#x len %d\n", 6418 page_index->page_code & SMPH_PC_MASK, 6419 page_index->page_len); 6420#endif 6421 6422 page_len += page_index->page_len; 6423 } 6424 6425 if (page_len == 0) { 6426 ctl_set_invalid_field(ctsio, 6427 /*sks_valid*/ 1, 6428 /*command*/ 1, 6429 /*field*/ 2, 6430 /*bit_valid*/ 1, 6431 /*bit*/ 5); 6432 ctl_done((union ctl_io *)ctsio); 6433 return (CTL_RETVAL_COMPLETE); 6434 } 6435 break; 6436 } 6437 } 6438 6439 total_len = header_len + page_len; 6440#if 0 6441 printf("header_len = %d, page_len = %d, total_len = %d\n", 6442 header_len, page_len, total_len); 6443#endif 6444 6445 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 6446 ctsio->kern_sg_entries = 0; 6447 ctsio->kern_data_resid = 0; 6448 ctsio->kern_rel_offset = 0; 6449 if (total_len < alloc_len) { 6450 ctsio->residual = alloc_len - total_len; 6451 ctsio->kern_data_len = total_len; 6452 ctsio->kern_total_len = total_len; 6453 } else { 6454 ctsio->residual = 0; 6455 ctsio->kern_data_len = alloc_len; 6456 ctsio->kern_total_len = alloc_len; 6457 } 6458 6459 switch (ctsio->cdb[0]) { 6460 case MODE_SENSE_6: { 6461 struct scsi_mode_hdr_6 *header; 6462 6463 header = (struct scsi_mode_hdr_6 *)ctsio->kern_data_ptr; 6464 6465 header->datalen = MIN(total_len - 1, 254); 6466 if (lun->be_lun->lun_type == T_DIRECT) { 6467 header->dev_specific = 0x10; /* DPOFUA */ 6468 if ((lun->be_lun->flags & CTL_LUN_FLAG_READONLY) || 6469 (lun->MODE_CTRL.eca_and_aen & SCP_SWP) != 0) 6470 header->dev_specific |= 0x80; /* WP */ 6471 } 6472 if (dbd) 6473 header->block_descr_len = 0; 6474 else 6475 header->block_descr_len = 6476 sizeof(struct scsi_mode_block_descr); 6477 block_desc = (struct scsi_mode_block_descr *)&header[1]; 6478 break; 6479 } 6480 case MODE_SENSE_10: { 6481 struct scsi_mode_hdr_10 *header; 6482 int datalen; 6483 6484 header = (struct scsi_mode_hdr_10 *)ctsio->kern_data_ptr; 6485 6486 datalen = MIN(total_len - 2, 65533); 6487 scsi_ulto2b(datalen, header->datalen); 6488 if (lun->be_lun->lun_type == T_DIRECT) { 6489 header->dev_specific = 0x10; /* DPOFUA */ 6490 if ((lun->be_lun->flags & CTL_LUN_FLAG_READONLY) || 6491 (lun->MODE_CTRL.eca_and_aen & SCP_SWP) != 0) 6492 header->dev_specific |= 0x80; /* WP */ 6493 } 6494 if (dbd) 6495 scsi_ulto2b(0, header->block_descr_len); 6496 else 6497 scsi_ulto2b(sizeof(struct scsi_mode_block_descr), 6498 header->block_descr_len); 6499 block_desc = (struct scsi_mode_block_descr *)&header[1]; 6500 break; 6501 } 6502 default: 6503 panic("%s: Invalid CDB type %#x", __func__, ctsio->cdb[0]); 6504 } 6505 6506 /* 6507 * If we've got a disk, use its blocksize in the block 6508 * descriptor. Otherwise, just set it to 0. 6509 */ 6510 if (dbd == 0) { 6511 if (lun->be_lun->lun_type == T_DIRECT) 6512 scsi_ulto3b(lun->be_lun->blocksize, 6513 block_desc->block_len); 6514 else 6515 scsi_ulto3b(0, block_desc->block_len); 6516 } 6517 6518 switch (page_code) { 6519 case SMS_ALL_PAGES_PAGE: { 6520 int i, data_used; 6521 6522 data_used = header_len; 6523 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6524 struct ctl_page_index *page_index; 6525 6526 page_index = &lun->mode_pages.index[i]; 6527 if (lun->be_lun->lun_type == T_DIRECT && 6528 (page_index->page_flags & CTL_PAGE_FLAG_DIRECT) == 0) 6529 continue; 6530 if (lun->be_lun->lun_type == T_PROCESSOR && 6531 (page_index->page_flags & CTL_PAGE_FLAG_PROC) == 0) 6532 continue; 6533 if (lun->be_lun->lun_type == T_CDROM && 6534 (page_index->page_flags & CTL_PAGE_FLAG_CDROM) == 0) 6535 continue; 6536 6537 /* 6538 * We don't use this subpage if the user didn't 6539 * request all subpages. We already checked (above) 6540 * to make sure the user only specified a subpage 6541 * of 0 or 0xff in the SMS_ALL_PAGES_PAGE case. 6542 */ 6543 if ((page_index->subpage != 0) 6544 && (subpage == SMS_SUBPAGE_PAGE_0)) 6545 continue; 6546 6547 /* 6548 * Call the handler, if it exists, to update the 6549 * page to the latest values. 6550 */ 6551 if (page_index->sense_handler != NULL) 6552 page_index->sense_handler(ctsio, page_index,pc); 6553 6554 memcpy(ctsio->kern_data_ptr + data_used, 6555 page_index->page_data + 6556 (page_index->page_len * pc), 6557 page_index->page_len); 6558 data_used += page_index->page_len; 6559 } 6560 break; 6561 } 6562 default: { 6563 int i, data_used; 6564 6565 data_used = header_len; 6566 6567 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6568 struct ctl_page_index *page_index; 6569 6570 page_index = &lun->mode_pages.index[i]; 6571 6572 /* Look for the right page code */ 6573 if ((page_index->page_code & SMPH_PC_MASK) != page_code) 6574 continue; 6575 6576 /* Look for the right subpage or the subpage wildcard*/ 6577 if ((page_index->subpage != subpage) 6578 && (subpage != SMS_SUBPAGE_ALL)) 6579 continue; 6580 6581 /* Make sure the page is supported for this dev type */ 6582 if (lun->be_lun->lun_type == T_DIRECT && 6583 (page_index->page_flags & CTL_PAGE_FLAG_DIRECT) == 0) 6584 continue; 6585 if (lun->be_lun->lun_type == T_PROCESSOR && 6586 (page_index->page_flags & CTL_PAGE_FLAG_PROC) == 0) 6587 continue; 6588 if (lun->be_lun->lun_type == T_CDROM && 6589 (page_index->page_flags & CTL_PAGE_FLAG_CDROM) == 0) 6590 continue; 6591 6592 /* 6593 * Call the handler, if it exists, to update the 6594 * page to the latest values. 6595 */ 6596 if (page_index->sense_handler != NULL) 6597 page_index->sense_handler(ctsio, page_index,pc); 6598 6599 memcpy(ctsio->kern_data_ptr + data_used, 6600 page_index->page_data + 6601 (page_index->page_len * pc), 6602 page_index->page_len); 6603 data_used += page_index->page_len; 6604 } 6605 break; 6606 } 6607 } 6608 6609 ctl_set_success(ctsio); 6610 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6611 ctsio->be_move_done = ctl_config_move_done; 6612 ctl_datamove((union ctl_io *)ctsio); 6613 return (CTL_RETVAL_COMPLETE); 6614} 6615 6616int 6617ctl_lbp_log_sense_handler(struct ctl_scsiio *ctsio, 6618 struct ctl_page_index *page_index, 6619 int pc) 6620{ 6621 struct ctl_lun *lun; 6622 struct scsi_log_param_header *phdr; 6623 uint8_t *data; 6624 uint64_t val; 6625 6626 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6627 data = page_index->page_data; 6628 6629 if (lun->backend->lun_attr != NULL && 6630 (val = lun->backend->lun_attr(lun->be_lun->be_lun, "blocksavail")) 6631 != UINT64_MAX) { 6632 phdr = (struct scsi_log_param_header *)data; 6633 scsi_ulto2b(0x0001, phdr->param_code); 6634 phdr->param_control = SLP_LBIN | SLP_LP; 6635 phdr->param_len = 8; 6636 data = (uint8_t *)(phdr + 1); 6637 scsi_ulto4b(val >> CTL_LBP_EXPONENT, data); 6638 data[4] = 0x02; /* per-pool */ 6639 data += phdr->param_len; 6640 } 6641 6642 if (lun->backend->lun_attr != NULL && 6643 (val = lun->backend->lun_attr(lun->be_lun->be_lun, "blocksused")) 6644 != UINT64_MAX) { 6645 phdr = (struct scsi_log_param_header *)data; 6646 scsi_ulto2b(0x0002, phdr->param_code); 6647 phdr->param_control = SLP_LBIN | SLP_LP; 6648 phdr->param_len = 8; 6649 data = (uint8_t *)(phdr + 1); 6650 scsi_ulto4b(val >> CTL_LBP_EXPONENT, data); 6651 data[4] = 0x01; /* per-LUN */ 6652 data += phdr->param_len; 6653 } 6654 6655 if (lun->backend->lun_attr != NULL && 6656 (val = lun->backend->lun_attr(lun->be_lun->be_lun, "poolblocksavail")) 6657 != UINT64_MAX) { 6658 phdr = (struct scsi_log_param_header *)data; 6659 scsi_ulto2b(0x00f1, phdr->param_code); 6660 phdr->param_control = SLP_LBIN | SLP_LP; 6661 phdr->param_len = 8; 6662 data = (uint8_t *)(phdr + 1); 6663 scsi_ulto4b(val >> CTL_LBP_EXPONENT, data); 6664 data[4] = 0x02; /* per-pool */ 6665 data += phdr->param_len; 6666 } 6667 6668 if (lun->backend->lun_attr != NULL && 6669 (val = lun->backend->lun_attr(lun->be_lun->be_lun, "poolblocksused")) 6670 != UINT64_MAX) { 6671 phdr = (struct scsi_log_param_header *)data; 6672 scsi_ulto2b(0x00f2, phdr->param_code); 6673 phdr->param_control = SLP_LBIN | SLP_LP; 6674 phdr->param_len = 8; 6675 data = (uint8_t *)(phdr + 1); 6676 scsi_ulto4b(val >> CTL_LBP_EXPONENT, data); 6677 data[4] = 0x02; /* per-pool */ 6678 data += phdr->param_len; 6679 } 6680 6681 page_index->page_len = data - page_index->page_data; 6682 return (0); 6683} 6684 6685int 6686ctl_sap_log_sense_handler(struct ctl_scsiio *ctsio, 6687 struct ctl_page_index *page_index, 6688 int pc) 6689{ 6690 struct ctl_lun *lun; 6691 struct stat_page *data; 6692 uint64_t rn, wn, rb, wb; 6693 struct bintime rt, wt; 6694 int i; 6695 6696 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6697 data = (struct stat_page *)page_index->page_data; 6698 6699 scsi_ulto2b(SLP_SAP, data->sap.hdr.param_code); 6700 data->sap.hdr.param_control = SLP_LBIN; 6701 data->sap.hdr.param_len = sizeof(struct scsi_log_stat_and_perf) - 6702 sizeof(struct scsi_log_param_header); 6703 rn = wn = rb = wb = 0; 6704 bintime_clear(&rt); 6705 bintime_clear(&wt); 6706 for (i = 0; i < CTL_MAX_PORTS; i++) { 6707 rn += lun->stats.ports[i].operations[CTL_STATS_READ]; 6708 wn += lun->stats.ports[i].operations[CTL_STATS_WRITE]; 6709 rb += lun->stats.ports[i].bytes[CTL_STATS_READ]; 6710 wb += lun->stats.ports[i].bytes[CTL_STATS_WRITE]; 6711 bintime_add(&rt, &lun->stats.ports[i].time[CTL_STATS_READ]); 6712 bintime_add(&wt, &lun->stats.ports[i].time[CTL_STATS_WRITE]); 6713 } 6714 scsi_u64to8b(rn, data->sap.read_num); 6715 scsi_u64to8b(wn, data->sap.write_num); 6716 if (lun->stats.blocksize > 0) { 6717 scsi_u64to8b(wb / lun->stats.blocksize, 6718 data->sap.recvieved_lba); 6719 scsi_u64to8b(rb / lun->stats.blocksize, 6720 data->sap.transmitted_lba); 6721 } 6722 scsi_u64to8b((uint64_t)rt.sec * 1000 + rt.frac / (UINT64_MAX / 1000), 6723 data->sap.read_int); 6724 scsi_u64to8b((uint64_t)wt.sec * 1000 + wt.frac / (UINT64_MAX / 1000), 6725 data->sap.write_int); 6726 scsi_u64to8b(0, data->sap.weighted_num); 6727 scsi_u64to8b(0, data->sap.weighted_int); 6728 scsi_ulto2b(SLP_IT, data->it.hdr.param_code); 6729 data->it.hdr.param_control = SLP_LBIN; 6730 data->it.hdr.param_len = sizeof(struct scsi_log_idle_time) - 6731 sizeof(struct scsi_log_param_header); 6732#ifdef CTL_TIME_IO 6733 scsi_u64to8b(lun->idle_time / SBT_1MS, data->it.idle_int); 6734#endif 6735 scsi_ulto2b(SLP_TI, data->ti.hdr.param_code); 6736 data->it.hdr.param_control = SLP_LBIN; 6737 data->ti.hdr.param_len = sizeof(struct scsi_log_time_interval) - 6738 sizeof(struct scsi_log_param_header); 6739 scsi_ulto4b(3, data->ti.exponent); 6740 scsi_ulto4b(1, data->ti.integer); 6741 return (0); 6742} 6743 6744int 6745ctl_ie_log_sense_handler(struct ctl_scsiio *ctsio, 6746 struct ctl_page_index *page_index, 6747 int pc) 6748{ 6749 struct ctl_lun *lun; 6750 struct scsi_log_informational_exceptions *data; 6751 6752 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6753 data = (struct scsi_log_informational_exceptions *)page_index->page_data; 6754 6755 scsi_ulto2b(SLP_IE_GEN, data->hdr.param_code); 6756 data->hdr.param_control = SLP_LBIN; 6757 data->hdr.param_len = sizeof(struct scsi_log_informational_exceptions) - 6758 sizeof(struct scsi_log_param_header); 6759 data->ie_asc = lun->ie_asc; 6760 data->ie_ascq = lun->ie_ascq; 6761 data->temperature = 0xff; 6762 return (0); 6763} 6764 6765int 6766ctl_log_sense(struct ctl_scsiio *ctsio) 6767{ 6768 struct ctl_lun *lun; 6769 int i, pc, page_code, subpage; 6770 int alloc_len, total_len; 6771 struct ctl_page_index *page_index; 6772 struct scsi_log_sense *cdb; 6773 struct scsi_log_header *header; 6774 6775 CTL_DEBUG_PRINT(("ctl_log_sense\n")); 6776 6777 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6778 cdb = (struct scsi_log_sense *)ctsio->cdb; 6779 pc = (cdb->page & SLS_PAGE_CTRL_MASK) >> 6; 6780 page_code = cdb->page & SLS_PAGE_CODE; 6781 subpage = cdb->subpage; 6782 alloc_len = scsi_2btoul(cdb->length); 6783 6784 page_index = NULL; 6785 for (i = 0; i < CTL_NUM_LOG_PAGES; i++) { 6786 page_index = &lun->log_pages.index[i]; 6787 6788 /* Look for the right page code */ 6789 if ((page_index->page_code & SL_PAGE_CODE) != page_code) 6790 continue; 6791 6792 /* Look for the right subpage or the subpage wildcard*/ 6793 if (page_index->subpage != subpage) 6794 continue; 6795 6796 break; 6797 } 6798 if (i >= CTL_NUM_LOG_PAGES) { 6799 ctl_set_invalid_field(ctsio, 6800 /*sks_valid*/ 1, 6801 /*command*/ 1, 6802 /*field*/ 2, 6803 /*bit_valid*/ 0, 6804 /*bit*/ 0); 6805 ctl_done((union ctl_io *)ctsio); 6806 return (CTL_RETVAL_COMPLETE); 6807 } 6808 6809 total_len = sizeof(struct scsi_log_header) + page_index->page_len; 6810 6811 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 6812 ctsio->kern_sg_entries = 0; 6813 ctsio->kern_data_resid = 0; 6814 ctsio->kern_rel_offset = 0; 6815 if (total_len < alloc_len) { 6816 ctsio->residual = alloc_len - total_len; 6817 ctsio->kern_data_len = total_len; 6818 ctsio->kern_total_len = total_len; 6819 } else { 6820 ctsio->residual = 0; 6821 ctsio->kern_data_len = alloc_len; 6822 ctsio->kern_total_len = alloc_len; 6823 } 6824 6825 header = (struct scsi_log_header *)ctsio->kern_data_ptr; 6826 header->page = page_index->page_code; 6827 if (page_index->page_code == SLS_LOGICAL_BLOCK_PROVISIONING) 6828 header->page |= SL_DS; 6829 if (page_index->subpage) { 6830 header->page |= SL_SPF; 6831 header->subpage = page_index->subpage; 6832 } 6833 scsi_ulto2b(page_index->page_len, header->datalen); 6834 6835 /* 6836 * Call the handler, if it exists, to update the 6837 * page to the latest values. 6838 */ 6839 if (page_index->sense_handler != NULL) 6840 page_index->sense_handler(ctsio, page_index, pc); 6841 6842 memcpy(header + 1, page_index->page_data, page_index->page_len); 6843 6844 ctl_set_success(ctsio); 6845 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6846 ctsio->be_move_done = ctl_config_move_done; 6847 ctl_datamove((union ctl_io *)ctsio); 6848 return (CTL_RETVAL_COMPLETE); 6849} 6850 6851int 6852ctl_read_capacity(struct ctl_scsiio *ctsio) 6853{ 6854 struct scsi_read_capacity *cdb; 6855 struct scsi_read_capacity_data *data; 6856 struct ctl_lun *lun; 6857 uint32_t lba; 6858 6859 CTL_DEBUG_PRINT(("ctl_read_capacity\n")); 6860 6861 cdb = (struct scsi_read_capacity *)ctsio->cdb; 6862 6863 lba = scsi_4btoul(cdb->addr); 6864 if (((cdb->pmi & SRC_PMI) == 0) 6865 && (lba != 0)) { 6866 ctl_set_invalid_field(/*ctsio*/ ctsio, 6867 /*sks_valid*/ 1, 6868 /*command*/ 1, 6869 /*field*/ 2, 6870 /*bit_valid*/ 0, 6871 /*bit*/ 0); 6872 ctl_done((union ctl_io *)ctsio); 6873 return (CTL_RETVAL_COMPLETE); 6874 } 6875 6876 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6877 6878 ctsio->kern_data_ptr = malloc(sizeof(*data), M_CTL, M_WAITOK | M_ZERO); 6879 data = (struct scsi_read_capacity_data *)ctsio->kern_data_ptr; 6880 ctsio->residual = 0; 6881 ctsio->kern_data_len = sizeof(*data); 6882 ctsio->kern_total_len = sizeof(*data); 6883 ctsio->kern_data_resid = 0; 6884 ctsio->kern_rel_offset = 0; 6885 ctsio->kern_sg_entries = 0; 6886 6887 /* 6888 * If the maximum LBA is greater than 0xfffffffe, the user must 6889 * issue a SERVICE ACTION IN (16) command, with the read capacity 6890 * serivce action set. 6891 */ 6892 if (lun->be_lun->maxlba > 0xfffffffe) 6893 scsi_ulto4b(0xffffffff, data->addr); 6894 else 6895 scsi_ulto4b(lun->be_lun->maxlba, data->addr); 6896 6897 /* 6898 * XXX KDM this may not be 512 bytes... 6899 */ 6900 scsi_ulto4b(lun->be_lun->blocksize, data->length); 6901 6902 ctl_set_success(ctsio); 6903 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6904 ctsio->be_move_done = ctl_config_move_done; 6905 ctl_datamove((union ctl_io *)ctsio); 6906 return (CTL_RETVAL_COMPLETE); 6907} 6908 6909int 6910ctl_read_capacity_16(struct ctl_scsiio *ctsio) 6911{ 6912 struct scsi_read_capacity_16 *cdb; 6913 struct scsi_read_capacity_data_long *data; 6914 struct ctl_lun *lun; 6915 uint64_t lba; 6916 uint32_t alloc_len; 6917 6918 CTL_DEBUG_PRINT(("ctl_read_capacity_16\n")); 6919 6920 cdb = (struct scsi_read_capacity_16 *)ctsio->cdb; 6921 6922 alloc_len = scsi_4btoul(cdb->alloc_len); 6923 lba = scsi_8btou64(cdb->addr); 6924 6925 if ((cdb->reladr & SRC16_PMI) 6926 && (lba != 0)) { 6927 ctl_set_invalid_field(/*ctsio*/ ctsio, 6928 /*sks_valid*/ 1, 6929 /*command*/ 1, 6930 /*field*/ 2, 6931 /*bit_valid*/ 0, 6932 /*bit*/ 0); 6933 ctl_done((union ctl_io *)ctsio); 6934 return (CTL_RETVAL_COMPLETE); 6935 } 6936 6937 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6938 6939 ctsio->kern_data_ptr = malloc(sizeof(*data), M_CTL, M_WAITOK | M_ZERO); 6940 data = (struct scsi_read_capacity_data_long *)ctsio->kern_data_ptr; 6941 6942 if (sizeof(*data) < alloc_len) { 6943 ctsio->residual = alloc_len - sizeof(*data); 6944 ctsio->kern_data_len = sizeof(*data); 6945 ctsio->kern_total_len = sizeof(*data); 6946 } else { 6947 ctsio->residual = 0; 6948 ctsio->kern_data_len = alloc_len; 6949 ctsio->kern_total_len = alloc_len; 6950 } 6951 ctsio->kern_data_resid = 0; 6952 ctsio->kern_rel_offset = 0; 6953 ctsio->kern_sg_entries = 0; 6954 6955 scsi_u64to8b(lun->be_lun->maxlba, data->addr); 6956 /* XXX KDM this may not be 512 bytes... */ 6957 scsi_ulto4b(lun->be_lun->blocksize, data->length); 6958 data->prot_lbppbe = lun->be_lun->pblockexp & SRC16_LBPPBE; 6959 scsi_ulto2b(lun->be_lun->pblockoff & SRC16_LALBA_A, data->lalba_lbp); 6960 if (lun->be_lun->flags & CTL_LUN_FLAG_UNMAP) 6961 data->lalba_lbp[0] |= SRC16_LBPME | SRC16_LBPRZ; 6962 6963 ctl_set_success(ctsio); 6964 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6965 ctsio->be_move_done = ctl_config_move_done; 6966 ctl_datamove((union ctl_io *)ctsio); 6967 return (CTL_RETVAL_COMPLETE); 6968} 6969 6970int 6971ctl_get_lba_status(struct ctl_scsiio *ctsio) 6972{ 6973 struct scsi_get_lba_status *cdb; 6974 struct scsi_get_lba_status_data *data; 6975 struct ctl_lun *lun; 6976 struct ctl_lba_len_flags *lbalen; 6977 uint64_t lba; 6978 uint32_t alloc_len, total_len; 6979 int retval; 6980 6981 CTL_DEBUG_PRINT(("ctl_get_lba_status\n")); 6982 6983 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6984 cdb = (struct scsi_get_lba_status *)ctsio->cdb; 6985 lba = scsi_8btou64(cdb->addr); 6986 alloc_len = scsi_4btoul(cdb->alloc_len); 6987 6988 if (lba > lun->be_lun->maxlba) { 6989 ctl_set_lba_out_of_range(ctsio); 6990 ctl_done((union ctl_io *)ctsio); 6991 return (CTL_RETVAL_COMPLETE); 6992 } 6993 6994 total_len = sizeof(*data) + sizeof(data->descr[0]); 6995 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 6996 data = (struct scsi_get_lba_status_data *)ctsio->kern_data_ptr; 6997 6998 if (total_len < alloc_len) { 6999 ctsio->residual = alloc_len - total_len; 7000 ctsio->kern_data_len = total_len; 7001 ctsio->kern_total_len = total_len; 7002 } else { 7003 ctsio->residual = 0; 7004 ctsio->kern_data_len = alloc_len; 7005 ctsio->kern_total_len = alloc_len; 7006 } 7007 ctsio->kern_data_resid = 0; 7008 ctsio->kern_rel_offset = 0; 7009 ctsio->kern_sg_entries = 0; 7010 7011 /* Fill dummy data in case backend can't tell anything. */ 7012 scsi_ulto4b(4 + sizeof(data->descr[0]), data->length); 7013 scsi_u64to8b(lba, data->descr[0].addr); 7014 scsi_ulto4b(MIN(UINT32_MAX, lun->be_lun->maxlba + 1 - lba), 7015 data->descr[0].length); 7016 data->descr[0].status = 0; /* Mapped or unknown. */ 7017 7018 ctl_set_success(ctsio); 7019 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7020 ctsio->be_move_done = ctl_config_move_done; 7021 7022 lbalen = (struct ctl_lba_len_flags *)&ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 7023 lbalen->lba = lba; 7024 lbalen->len = total_len; 7025 lbalen->flags = 0; 7026 retval = lun->backend->config_read((union ctl_io *)ctsio); 7027 return (CTL_RETVAL_COMPLETE); 7028} 7029 7030int 7031ctl_read_defect(struct ctl_scsiio *ctsio) 7032{ 7033 struct scsi_read_defect_data_10 *ccb10; 7034 struct scsi_read_defect_data_12 *ccb12; 7035 struct scsi_read_defect_data_hdr_10 *data10; 7036 struct scsi_read_defect_data_hdr_12 *data12; 7037 uint32_t alloc_len, data_len; 7038 uint8_t format; 7039 7040 CTL_DEBUG_PRINT(("ctl_read_defect\n")); 7041 7042 if (ctsio->cdb[0] == READ_DEFECT_DATA_10) { 7043 ccb10 = (struct scsi_read_defect_data_10 *)&ctsio->cdb; 7044 format = ccb10->format; 7045 alloc_len = scsi_2btoul(ccb10->alloc_length); 7046 data_len = sizeof(*data10); 7047 } else { 7048 ccb12 = (struct scsi_read_defect_data_12 *)&ctsio->cdb; 7049 format = ccb12->format; 7050 alloc_len = scsi_4btoul(ccb12->alloc_length); 7051 data_len = sizeof(*data12); 7052 } 7053 if (alloc_len == 0) { 7054 ctl_set_success(ctsio); 7055 ctl_done((union ctl_io *)ctsio); 7056 return (CTL_RETVAL_COMPLETE); 7057 } 7058 7059 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 7060 if (data_len < alloc_len) { 7061 ctsio->residual = alloc_len - data_len; 7062 ctsio->kern_data_len = data_len; 7063 ctsio->kern_total_len = data_len; 7064 } else { 7065 ctsio->residual = 0; 7066 ctsio->kern_data_len = alloc_len; 7067 ctsio->kern_total_len = alloc_len; 7068 } 7069 ctsio->kern_data_resid = 0; 7070 ctsio->kern_rel_offset = 0; 7071 ctsio->kern_sg_entries = 0; 7072 7073 if (ctsio->cdb[0] == READ_DEFECT_DATA_10) { 7074 data10 = (struct scsi_read_defect_data_hdr_10 *) 7075 ctsio->kern_data_ptr; 7076 data10->format = format; 7077 scsi_ulto2b(0, data10->length); 7078 } else { 7079 data12 = (struct scsi_read_defect_data_hdr_12 *) 7080 ctsio->kern_data_ptr; 7081 data12->format = format; 7082 scsi_ulto2b(0, data12->generation); 7083 scsi_ulto4b(0, data12->length); 7084 } 7085 7086 ctl_set_success(ctsio); 7087 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7088 ctsio->be_move_done = ctl_config_move_done; 7089 ctl_datamove((union ctl_io *)ctsio); 7090 return (CTL_RETVAL_COMPLETE); 7091} 7092 7093int 7094ctl_report_tagret_port_groups(struct ctl_scsiio *ctsio) 7095{ 7096 struct scsi_maintenance_in *cdb; 7097 int retval; 7098 int alloc_len, ext, total_len = 0, g, pc, pg, ts, os; 7099 int num_ha_groups, num_target_ports, shared_group; 7100 struct ctl_lun *lun; 7101 struct ctl_softc *softc; 7102 struct ctl_port *port; 7103 struct scsi_target_group_data *rtg_ptr; 7104 struct scsi_target_group_data_extended *rtg_ext_ptr; 7105 struct scsi_target_port_group_descriptor *tpg_desc; 7106 7107 CTL_DEBUG_PRINT(("ctl_report_tagret_port_groups\n")); 7108 7109 cdb = (struct scsi_maintenance_in *)ctsio->cdb; 7110 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7111 softc = lun->ctl_softc; 7112 7113 retval = CTL_RETVAL_COMPLETE; 7114 7115 switch (cdb->byte2 & STG_PDF_MASK) { 7116 case STG_PDF_LENGTH: 7117 ext = 0; 7118 break; 7119 case STG_PDF_EXTENDED: 7120 ext = 1; 7121 break; 7122 default: 7123 ctl_set_invalid_field(/*ctsio*/ ctsio, 7124 /*sks_valid*/ 1, 7125 /*command*/ 1, 7126 /*field*/ 2, 7127 /*bit_valid*/ 1, 7128 /*bit*/ 5); 7129 ctl_done((union ctl_io *)ctsio); 7130 return(retval); 7131 } 7132 7133 num_target_ports = 0; 7134 shared_group = (softc->is_single != 0); 7135 mtx_lock(&softc->ctl_lock); 7136 STAILQ_FOREACH(port, &softc->port_list, links) { 7137 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 7138 continue; 7139 if (ctl_lun_map_to_port(port, lun->lun) >= CTL_MAX_LUNS) 7140 continue; 7141 num_target_ports++; 7142 if (port->status & CTL_PORT_STATUS_HA_SHARED) 7143 shared_group = 1; 7144 } 7145 mtx_unlock(&softc->ctl_lock); 7146 num_ha_groups = (softc->is_single) ? 0 : NUM_HA_SHELVES; 7147 7148 if (ext) 7149 total_len = sizeof(struct scsi_target_group_data_extended); 7150 else 7151 total_len = sizeof(struct scsi_target_group_data); 7152 total_len += sizeof(struct scsi_target_port_group_descriptor) * 7153 (shared_group + num_ha_groups) + 7154 sizeof(struct scsi_target_port_descriptor) * num_target_ports; 7155 7156 alloc_len = scsi_4btoul(cdb->length); 7157 7158 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7159 7160 ctsio->kern_sg_entries = 0; 7161 7162 if (total_len < alloc_len) { 7163 ctsio->residual = alloc_len - total_len; 7164 ctsio->kern_data_len = total_len; 7165 ctsio->kern_total_len = total_len; 7166 } else { 7167 ctsio->residual = 0; 7168 ctsio->kern_data_len = alloc_len; 7169 ctsio->kern_total_len = alloc_len; 7170 } 7171 ctsio->kern_data_resid = 0; 7172 ctsio->kern_rel_offset = 0; 7173 7174 if (ext) { 7175 rtg_ext_ptr = (struct scsi_target_group_data_extended *) 7176 ctsio->kern_data_ptr; 7177 scsi_ulto4b(total_len - 4, rtg_ext_ptr->length); 7178 rtg_ext_ptr->format_type = 0x10; 7179 rtg_ext_ptr->implicit_transition_time = 0; 7180 tpg_desc = &rtg_ext_ptr->groups[0]; 7181 } else { 7182 rtg_ptr = (struct scsi_target_group_data *) 7183 ctsio->kern_data_ptr; 7184 scsi_ulto4b(total_len - 4, rtg_ptr->length); 7185 tpg_desc = &rtg_ptr->groups[0]; 7186 } 7187 7188 mtx_lock(&softc->ctl_lock); 7189 pg = softc->port_min / softc->port_cnt; 7190 if (lun->flags & (CTL_LUN_PRIMARY_SC | CTL_LUN_PEER_SC_PRIMARY)) { 7191 /* Some shelf is known to be primary. */ 7192 if (softc->ha_link == CTL_HA_LINK_OFFLINE) 7193 os = TPG_ASYMMETRIC_ACCESS_UNAVAILABLE; 7194 else if (softc->ha_link == CTL_HA_LINK_UNKNOWN) 7195 os = TPG_ASYMMETRIC_ACCESS_TRANSITIONING; 7196 else if (softc->ha_mode == CTL_HA_MODE_ACT_STBY) 7197 os = TPG_ASYMMETRIC_ACCESS_STANDBY; 7198 else 7199 os = TPG_ASYMMETRIC_ACCESS_NONOPTIMIZED; 7200 if (lun->flags & CTL_LUN_PRIMARY_SC) { 7201 ts = TPG_ASYMMETRIC_ACCESS_OPTIMIZED; 7202 } else { 7203 ts = os; 7204 os = TPG_ASYMMETRIC_ACCESS_OPTIMIZED; 7205 } 7206 } else { 7207 /* No known primary shelf. */ 7208 if (softc->ha_link == CTL_HA_LINK_OFFLINE) { 7209 ts = TPG_ASYMMETRIC_ACCESS_UNAVAILABLE; 7210 os = TPG_ASYMMETRIC_ACCESS_OPTIMIZED; 7211 } else if (softc->ha_link == CTL_HA_LINK_UNKNOWN) { 7212 ts = TPG_ASYMMETRIC_ACCESS_TRANSITIONING; 7213 os = TPG_ASYMMETRIC_ACCESS_OPTIMIZED; 7214 } else { 7215 ts = os = TPG_ASYMMETRIC_ACCESS_TRANSITIONING; 7216 } 7217 } 7218 if (shared_group) { 7219 tpg_desc->pref_state = ts; 7220 tpg_desc->support = TPG_AO_SUP | TPG_AN_SUP | TPG_S_SUP | 7221 TPG_U_SUP | TPG_T_SUP; 7222 scsi_ulto2b(1, tpg_desc->target_port_group); 7223 tpg_desc->status = TPG_IMPLICIT; 7224 pc = 0; 7225 STAILQ_FOREACH(port, &softc->port_list, links) { 7226 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 7227 continue; 7228 if (!softc->is_single && 7229 (port->status & CTL_PORT_STATUS_HA_SHARED) == 0) 7230 continue; 7231 if (ctl_lun_map_to_port(port, lun->lun) >= CTL_MAX_LUNS) 7232 continue; 7233 scsi_ulto2b(port->targ_port, tpg_desc->descriptors[pc]. 7234 relative_target_port_identifier); 7235 pc++; 7236 } 7237 tpg_desc->target_port_count = pc; 7238 tpg_desc = (struct scsi_target_port_group_descriptor *) 7239 &tpg_desc->descriptors[pc]; 7240 } 7241 for (g = 0; g < num_ha_groups; g++) { 7242 tpg_desc->pref_state = (g == pg) ? ts : os; 7243 tpg_desc->support = TPG_AO_SUP | TPG_AN_SUP | TPG_S_SUP | 7244 TPG_U_SUP | TPG_T_SUP; 7245 scsi_ulto2b(2 + g, tpg_desc->target_port_group); 7246 tpg_desc->status = TPG_IMPLICIT; 7247 pc = 0; 7248 STAILQ_FOREACH(port, &softc->port_list, links) { 7249 if (port->targ_port < g * softc->port_cnt || 7250 port->targ_port >= (g + 1) * softc->port_cnt) 7251 continue; 7252 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 7253 continue; 7254 if (port->status & CTL_PORT_STATUS_HA_SHARED) 7255 continue; 7256 if (ctl_lun_map_to_port(port, lun->lun) >= CTL_MAX_LUNS) 7257 continue; 7258 scsi_ulto2b(port->targ_port, tpg_desc->descriptors[pc]. 7259 relative_target_port_identifier); 7260 pc++; 7261 } 7262 tpg_desc->target_port_count = pc; 7263 tpg_desc = (struct scsi_target_port_group_descriptor *) 7264 &tpg_desc->descriptors[pc]; 7265 } 7266 mtx_unlock(&softc->ctl_lock); 7267 7268 ctl_set_success(ctsio); 7269 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7270 ctsio->be_move_done = ctl_config_move_done; 7271 ctl_datamove((union ctl_io *)ctsio); 7272 return(retval); 7273} 7274 7275int 7276ctl_report_supported_opcodes(struct ctl_scsiio *ctsio) 7277{ 7278 struct ctl_lun *lun; 7279 struct scsi_report_supported_opcodes *cdb; 7280 const struct ctl_cmd_entry *entry, *sentry; 7281 struct scsi_report_supported_opcodes_all *all; 7282 struct scsi_report_supported_opcodes_descr *descr; 7283 struct scsi_report_supported_opcodes_one *one; 7284 int retval; 7285 int alloc_len, total_len; 7286 int opcode, service_action, i, j, num; 7287 7288 CTL_DEBUG_PRINT(("ctl_report_supported_opcodes\n")); 7289 7290 cdb = (struct scsi_report_supported_opcodes *)ctsio->cdb; 7291 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7292 7293 retval = CTL_RETVAL_COMPLETE; 7294 7295 opcode = cdb->requested_opcode; 7296 service_action = scsi_2btoul(cdb->requested_service_action); 7297 switch (cdb->options & RSO_OPTIONS_MASK) { 7298 case RSO_OPTIONS_ALL: 7299 num = 0; 7300 for (i = 0; i < 256; i++) { 7301 entry = &ctl_cmd_table[i]; 7302 if (entry->flags & CTL_CMD_FLAG_SA5) { 7303 for (j = 0; j < 32; j++) { 7304 sentry = &((const struct ctl_cmd_entry *) 7305 entry->execute)[j]; 7306 if (ctl_cmd_applicable( 7307 lun->be_lun->lun_type, sentry)) 7308 num++; 7309 } 7310 } else { 7311 if (ctl_cmd_applicable(lun->be_lun->lun_type, 7312 entry)) 7313 num++; 7314 } 7315 } 7316 total_len = sizeof(struct scsi_report_supported_opcodes_all) + 7317 num * sizeof(struct scsi_report_supported_opcodes_descr); 7318 break; 7319 case RSO_OPTIONS_OC: 7320 if (ctl_cmd_table[opcode].flags & CTL_CMD_FLAG_SA5) { 7321 ctl_set_invalid_field(/*ctsio*/ ctsio, 7322 /*sks_valid*/ 1, 7323 /*command*/ 1, 7324 /*field*/ 2, 7325 /*bit_valid*/ 1, 7326 /*bit*/ 2); 7327 ctl_done((union ctl_io *)ctsio); 7328 return (CTL_RETVAL_COMPLETE); 7329 } 7330 total_len = sizeof(struct scsi_report_supported_opcodes_one) + 32; 7331 break; 7332 case RSO_OPTIONS_OC_SA: 7333 if ((ctl_cmd_table[opcode].flags & CTL_CMD_FLAG_SA5) == 0 || 7334 service_action >= 32) { 7335 ctl_set_invalid_field(/*ctsio*/ ctsio, 7336 /*sks_valid*/ 1, 7337 /*command*/ 1, 7338 /*field*/ 2, 7339 /*bit_valid*/ 1, 7340 /*bit*/ 2); 7341 ctl_done((union ctl_io *)ctsio); 7342 return (CTL_RETVAL_COMPLETE); 7343 } 7344 total_len = sizeof(struct scsi_report_supported_opcodes_one) + 32; 7345 break; 7346 default: 7347 ctl_set_invalid_field(/*ctsio*/ ctsio, 7348 /*sks_valid*/ 1, 7349 /*command*/ 1, 7350 /*field*/ 2, 7351 /*bit_valid*/ 1, 7352 /*bit*/ 2); 7353 ctl_done((union ctl_io *)ctsio); 7354 return (CTL_RETVAL_COMPLETE); 7355 } 7356 7357 alloc_len = scsi_4btoul(cdb->length); 7358 7359 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7360 7361 ctsio->kern_sg_entries = 0; 7362 7363 if (total_len < alloc_len) { 7364 ctsio->residual = alloc_len - total_len; 7365 ctsio->kern_data_len = total_len; 7366 ctsio->kern_total_len = total_len; 7367 } else { 7368 ctsio->residual = 0; 7369 ctsio->kern_data_len = alloc_len; 7370 ctsio->kern_total_len = alloc_len; 7371 } 7372 ctsio->kern_data_resid = 0; 7373 ctsio->kern_rel_offset = 0; 7374 7375 switch (cdb->options & RSO_OPTIONS_MASK) { 7376 case RSO_OPTIONS_ALL: 7377 all = (struct scsi_report_supported_opcodes_all *) 7378 ctsio->kern_data_ptr; 7379 num = 0; 7380 for (i = 0; i < 256; i++) { 7381 entry = &ctl_cmd_table[i]; 7382 if (entry->flags & CTL_CMD_FLAG_SA5) { 7383 for (j = 0; j < 32; j++) { 7384 sentry = &((const struct ctl_cmd_entry *) 7385 entry->execute)[j]; 7386 if (!ctl_cmd_applicable( 7387 lun->be_lun->lun_type, sentry)) 7388 continue; 7389 descr = &all->descr[num++]; 7390 descr->opcode = i; 7391 scsi_ulto2b(j, descr->service_action); 7392 descr->flags = RSO_SERVACTV; 7393 scsi_ulto2b(sentry->length, 7394 descr->cdb_length); 7395 } 7396 } else { 7397 if (!ctl_cmd_applicable(lun->be_lun->lun_type, 7398 entry)) 7399 continue; 7400 descr = &all->descr[num++]; 7401 descr->opcode = i; 7402 scsi_ulto2b(0, descr->service_action); 7403 descr->flags = 0; 7404 scsi_ulto2b(entry->length, descr->cdb_length); 7405 } 7406 } 7407 scsi_ulto4b( 7408 num * sizeof(struct scsi_report_supported_opcodes_descr), 7409 all->length); 7410 break; 7411 case RSO_OPTIONS_OC: 7412 one = (struct scsi_report_supported_opcodes_one *) 7413 ctsio->kern_data_ptr; 7414 entry = &ctl_cmd_table[opcode]; 7415 goto fill_one; 7416 case RSO_OPTIONS_OC_SA: 7417 one = (struct scsi_report_supported_opcodes_one *) 7418 ctsio->kern_data_ptr; 7419 entry = &ctl_cmd_table[opcode]; 7420 entry = &((const struct ctl_cmd_entry *) 7421 entry->execute)[service_action]; 7422fill_one: 7423 if (ctl_cmd_applicable(lun->be_lun->lun_type, entry)) { 7424 one->support = 3; 7425 scsi_ulto2b(entry->length, one->cdb_length); 7426 one->cdb_usage[0] = opcode; 7427 memcpy(&one->cdb_usage[1], entry->usage, 7428 entry->length - 1); 7429 } else 7430 one->support = 1; 7431 break; 7432 } 7433 7434 ctl_set_success(ctsio); 7435 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7436 ctsio->be_move_done = ctl_config_move_done; 7437 ctl_datamove((union ctl_io *)ctsio); 7438 return(retval); 7439} 7440 7441int 7442ctl_report_supported_tmf(struct ctl_scsiio *ctsio) 7443{ 7444 struct scsi_report_supported_tmf *cdb; 7445 struct scsi_report_supported_tmf_data *data; 7446 int retval; 7447 int alloc_len, total_len; 7448 7449 CTL_DEBUG_PRINT(("ctl_report_supported_tmf\n")); 7450 7451 cdb = (struct scsi_report_supported_tmf *)ctsio->cdb; 7452 7453 retval = CTL_RETVAL_COMPLETE; 7454 7455 total_len = sizeof(struct scsi_report_supported_tmf_data); 7456 alloc_len = scsi_4btoul(cdb->length); 7457 7458 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7459 7460 ctsio->kern_sg_entries = 0; 7461 7462 if (total_len < alloc_len) { 7463 ctsio->residual = alloc_len - total_len; 7464 ctsio->kern_data_len = total_len; 7465 ctsio->kern_total_len = total_len; 7466 } else { 7467 ctsio->residual = 0; 7468 ctsio->kern_data_len = alloc_len; 7469 ctsio->kern_total_len = alloc_len; 7470 } 7471 ctsio->kern_data_resid = 0; 7472 ctsio->kern_rel_offset = 0; 7473 7474 data = (struct scsi_report_supported_tmf_data *)ctsio->kern_data_ptr; 7475 data->byte1 |= RST_ATS | RST_ATSS | RST_CTSS | RST_LURS | RST_QTS | 7476 RST_TRS; 7477 data->byte2 |= RST_QAES | RST_QTSS | RST_ITNRS; 7478 7479 ctl_set_success(ctsio); 7480 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7481 ctsio->be_move_done = ctl_config_move_done; 7482 ctl_datamove((union ctl_io *)ctsio); 7483 return (retval); 7484} 7485 7486int 7487ctl_report_timestamp(struct ctl_scsiio *ctsio) 7488{ 7489 struct scsi_report_timestamp *cdb; 7490 struct scsi_report_timestamp_data *data; 7491 struct timeval tv; 7492 int64_t timestamp; 7493 int retval; 7494 int alloc_len, total_len; 7495 7496 CTL_DEBUG_PRINT(("ctl_report_timestamp\n")); 7497 7498 cdb = (struct scsi_report_timestamp *)ctsio->cdb; 7499 7500 retval = CTL_RETVAL_COMPLETE; 7501 7502 total_len = sizeof(struct scsi_report_timestamp_data); 7503 alloc_len = scsi_4btoul(cdb->length); 7504 7505 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7506 7507 ctsio->kern_sg_entries = 0; 7508 7509 if (total_len < alloc_len) { 7510 ctsio->residual = alloc_len - total_len; 7511 ctsio->kern_data_len = total_len; 7512 ctsio->kern_total_len = total_len; 7513 } else { 7514 ctsio->residual = 0; 7515 ctsio->kern_data_len = alloc_len; 7516 ctsio->kern_total_len = alloc_len; 7517 } 7518 ctsio->kern_data_resid = 0; 7519 ctsio->kern_rel_offset = 0; 7520 7521 data = (struct scsi_report_timestamp_data *)ctsio->kern_data_ptr; 7522 scsi_ulto2b(sizeof(*data) - 2, data->length); 7523 data->origin = RTS_ORIG_OUTSIDE; 7524 getmicrotime(&tv); 7525 timestamp = (int64_t)tv.tv_sec * 1000 + tv.tv_usec / 1000; 7526 scsi_ulto4b(timestamp >> 16, data->timestamp); 7527 scsi_ulto2b(timestamp & 0xffff, &data->timestamp[4]); 7528 7529 ctl_set_success(ctsio); 7530 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7531 ctsio->be_move_done = ctl_config_move_done; 7532 ctl_datamove((union ctl_io *)ctsio); 7533 return (retval); 7534} 7535 7536int 7537ctl_persistent_reserve_in(struct ctl_scsiio *ctsio) 7538{ 7539 struct scsi_per_res_in *cdb; 7540 int alloc_len, total_len = 0; 7541 /* struct scsi_per_res_in_rsrv in_data; */ 7542 struct ctl_lun *lun; 7543 struct ctl_softc *softc; 7544 uint64_t key; 7545 7546 CTL_DEBUG_PRINT(("ctl_persistent_reserve_in\n")); 7547 7548 cdb = (struct scsi_per_res_in *)ctsio->cdb; 7549 7550 alloc_len = scsi_2btoul(cdb->length); 7551 7552 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7553 softc = lun->ctl_softc; 7554 7555retry: 7556 mtx_lock(&lun->lun_lock); 7557 switch (cdb->action) { 7558 case SPRI_RK: /* read keys */ 7559 total_len = sizeof(struct scsi_per_res_in_keys) + 7560 lun->pr_key_count * 7561 sizeof(struct scsi_per_res_key); 7562 break; 7563 case SPRI_RR: /* read reservation */ 7564 if (lun->flags & CTL_LUN_PR_RESERVED) 7565 total_len = sizeof(struct scsi_per_res_in_rsrv); 7566 else 7567 total_len = sizeof(struct scsi_per_res_in_header); 7568 break; 7569 case SPRI_RC: /* report capabilities */ 7570 total_len = sizeof(struct scsi_per_res_cap); 7571 break; 7572 case SPRI_RS: /* read full status */ 7573 total_len = sizeof(struct scsi_per_res_in_header) + 7574 (sizeof(struct scsi_per_res_in_full_desc) + 256) * 7575 lun->pr_key_count; 7576 break; 7577 default: 7578 panic("%s: Invalid PR type %#x", __func__, cdb->action); 7579 } 7580 mtx_unlock(&lun->lun_lock); 7581 7582 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7583 7584 if (total_len < alloc_len) { 7585 ctsio->residual = alloc_len - total_len; 7586 ctsio->kern_data_len = total_len; 7587 ctsio->kern_total_len = total_len; 7588 } else { 7589 ctsio->residual = 0; 7590 ctsio->kern_data_len = alloc_len; 7591 ctsio->kern_total_len = alloc_len; 7592 } 7593 7594 ctsio->kern_data_resid = 0; 7595 ctsio->kern_rel_offset = 0; 7596 ctsio->kern_sg_entries = 0; 7597 7598 mtx_lock(&lun->lun_lock); 7599 switch (cdb->action) { 7600 case SPRI_RK: { // read keys 7601 struct scsi_per_res_in_keys *res_keys; 7602 int i, key_count; 7603 7604 res_keys = (struct scsi_per_res_in_keys*)ctsio->kern_data_ptr; 7605 7606 /* 7607 * We had to drop the lock to allocate our buffer, which 7608 * leaves time for someone to come in with another 7609 * persistent reservation. (That is unlikely, though, 7610 * since this should be the only persistent reservation 7611 * command active right now.) 7612 */ 7613 if (total_len != (sizeof(struct scsi_per_res_in_keys) + 7614 (lun->pr_key_count * 7615 sizeof(struct scsi_per_res_key)))){ 7616 mtx_unlock(&lun->lun_lock); 7617 free(ctsio->kern_data_ptr, M_CTL); 7618 printf("%s: reservation length changed, retrying\n", 7619 __func__); 7620 goto retry; 7621 } 7622 7623 scsi_ulto4b(lun->pr_generation, res_keys->header.generation); 7624 7625 scsi_ulto4b(sizeof(struct scsi_per_res_key) * 7626 lun->pr_key_count, res_keys->header.length); 7627 7628 for (i = 0, key_count = 0; i < CTL_MAX_INITIATORS; i++) { 7629 if ((key = ctl_get_prkey(lun, i)) == 0) 7630 continue; 7631 7632 /* 7633 * We used lun->pr_key_count to calculate the 7634 * size to allocate. If it turns out the number of 7635 * initiators with the registered flag set is 7636 * larger than that (i.e. they haven't been kept in 7637 * sync), we've got a problem. 7638 */ 7639 if (key_count >= lun->pr_key_count) { 7640 key_count++; 7641 continue; 7642 } 7643 scsi_u64to8b(key, res_keys->keys[key_count].key); 7644 key_count++; 7645 } 7646 break; 7647 } 7648 case SPRI_RR: { // read reservation 7649 struct scsi_per_res_in_rsrv *res; 7650 int tmp_len, header_only; 7651 7652 res = (struct scsi_per_res_in_rsrv *)ctsio->kern_data_ptr; 7653 7654 scsi_ulto4b(lun->pr_generation, res->header.generation); 7655 7656 if (lun->flags & CTL_LUN_PR_RESERVED) 7657 { 7658 tmp_len = sizeof(struct scsi_per_res_in_rsrv); 7659 scsi_ulto4b(sizeof(struct scsi_per_res_in_rsrv_data), 7660 res->header.length); 7661 header_only = 0; 7662 } else { 7663 tmp_len = sizeof(struct scsi_per_res_in_header); 7664 scsi_ulto4b(0, res->header.length); 7665 header_only = 1; 7666 } 7667 7668 /* 7669 * We had to drop the lock to allocate our buffer, which 7670 * leaves time for someone to come in with another 7671 * persistent reservation. (That is unlikely, though, 7672 * since this should be the only persistent reservation 7673 * command active right now.) 7674 */ 7675 if (tmp_len != total_len) { 7676 mtx_unlock(&lun->lun_lock); 7677 free(ctsio->kern_data_ptr, M_CTL); 7678 printf("%s: reservation status changed, retrying\n", 7679 __func__); 7680 goto retry; 7681 } 7682 7683 /* 7684 * No reservation held, so we're done. 7685 */ 7686 if (header_only != 0) 7687 break; 7688 7689 /* 7690 * If the registration is an All Registrants type, the key 7691 * is 0, since it doesn't really matter. 7692 */ 7693 if (lun->pr_res_idx != CTL_PR_ALL_REGISTRANTS) { 7694 scsi_u64to8b(ctl_get_prkey(lun, lun->pr_res_idx), 7695 res->data.reservation); 7696 } 7697 res->data.scopetype = lun->pr_res_type; 7698 break; 7699 } 7700 case SPRI_RC: //report capabilities 7701 { 7702 struct scsi_per_res_cap *res_cap; 7703 uint16_t type_mask; 7704 7705 res_cap = (struct scsi_per_res_cap *)ctsio->kern_data_ptr; 7706 scsi_ulto2b(sizeof(*res_cap), res_cap->length); 7707 res_cap->flags1 = SPRI_CRH; 7708 res_cap->flags2 = SPRI_TMV | SPRI_ALLOW_5; 7709 type_mask = SPRI_TM_WR_EX_AR | 7710 SPRI_TM_EX_AC_RO | 7711 SPRI_TM_WR_EX_RO | 7712 SPRI_TM_EX_AC | 7713 SPRI_TM_WR_EX | 7714 SPRI_TM_EX_AC_AR; 7715 scsi_ulto2b(type_mask, res_cap->type_mask); 7716 break; 7717 } 7718 case SPRI_RS: { // read full status 7719 struct scsi_per_res_in_full *res_status; 7720 struct scsi_per_res_in_full_desc *res_desc; 7721 struct ctl_port *port; 7722 int i, len; 7723 7724 res_status = (struct scsi_per_res_in_full*)ctsio->kern_data_ptr; 7725 7726 /* 7727 * We had to drop the lock to allocate our buffer, which 7728 * leaves time for someone to come in with another 7729 * persistent reservation. (That is unlikely, though, 7730 * since this should be the only persistent reservation 7731 * command active right now.) 7732 */ 7733 if (total_len < (sizeof(struct scsi_per_res_in_header) + 7734 (sizeof(struct scsi_per_res_in_full_desc) + 256) * 7735 lun->pr_key_count)){ 7736 mtx_unlock(&lun->lun_lock); 7737 free(ctsio->kern_data_ptr, M_CTL); 7738 printf("%s: reservation length changed, retrying\n", 7739 __func__); 7740 goto retry; 7741 } 7742 7743 scsi_ulto4b(lun->pr_generation, res_status->header.generation); 7744 7745 res_desc = &res_status->desc[0]; 7746 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 7747 if ((key = ctl_get_prkey(lun, i)) == 0) 7748 continue; 7749 7750 scsi_u64to8b(key, res_desc->res_key.key); 7751 if ((lun->flags & CTL_LUN_PR_RESERVED) && 7752 (lun->pr_res_idx == i || 7753 lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS)) { 7754 res_desc->flags = SPRI_FULL_R_HOLDER; 7755 res_desc->scopetype = lun->pr_res_type; 7756 } 7757 scsi_ulto2b(i / CTL_MAX_INIT_PER_PORT, 7758 res_desc->rel_trgt_port_id); 7759 len = 0; 7760 port = softc->ctl_ports[i / CTL_MAX_INIT_PER_PORT]; 7761 if (port != NULL) 7762 len = ctl_create_iid(port, 7763 i % CTL_MAX_INIT_PER_PORT, 7764 res_desc->transport_id); 7765 scsi_ulto4b(len, res_desc->additional_length); 7766 res_desc = (struct scsi_per_res_in_full_desc *) 7767 &res_desc->transport_id[len]; 7768 } 7769 scsi_ulto4b((uint8_t *)res_desc - (uint8_t *)&res_status->desc[0], 7770 res_status->header.length); 7771 break; 7772 } 7773 default: 7774 panic("%s: Invalid PR type %#x", __func__, cdb->action); 7775 } 7776 mtx_unlock(&lun->lun_lock); 7777 7778 ctl_set_success(ctsio); 7779 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7780 ctsio->be_move_done = ctl_config_move_done; 7781 ctl_datamove((union ctl_io *)ctsio); 7782 return (CTL_RETVAL_COMPLETE); 7783} 7784 7785/* 7786 * Returns 0 if ctl_persistent_reserve_out() should continue, non-zero if 7787 * it should return. 7788 */ 7789static int 7790ctl_pro_preempt(struct ctl_softc *softc, struct ctl_lun *lun, uint64_t res_key, 7791 uint64_t sa_res_key, uint8_t type, uint32_t residx, 7792 struct ctl_scsiio *ctsio, struct scsi_per_res_out *cdb, 7793 struct scsi_per_res_out_parms* param) 7794{ 7795 union ctl_ha_msg persis_io; 7796 int i; 7797 7798 mtx_lock(&lun->lun_lock); 7799 if (sa_res_key == 0) { 7800 if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS) { 7801 /* validate scope and type */ 7802 if ((cdb->scope_type & SPR_SCOPE_MASK) != 7803 SPR_LU_SCOPE) { 7804 mtx_unlock(&lun->lun_lock); 7805 ctl_set_invalid_field(/*ctsio*/ ctsio, 7806 /*sks_valid*/ 1, 7807 /*command*/ 1, 7808 /*field*/ 2, 7809 /*bit_valid*/ 1, 7810 /*bit*/ 4); 7811 ctl_done((union ctl_io *)ctsio); 7812 return (1); 7813 } 7814 7815 if (type>8 || type==2 || type==4 || type==0) { 7816 mtx_unlock(&lun->lun_lock); 7817 ctl_set_invalid_field(/*ctsio*/ ctsio, 7818 /*sks_valid*/ 1, 7819 /*command*/ 1, 7820 /*field*/ 2, 7821 /*bit_valid*/ 1, 7822 /*bit*/ 0); 7823 ctl_done((union ctl_io *)ctsio); 7824 return (1); 7825 } 7826 7827 /* 7828 * Unregister everybody else and build UA for 7829 * them 7830 */ 7831 for(i = 0; i < CTL_MAX_INITIATORS; i++) { 7832 if (i == residx || ctl_get_prkey(lun, i) == 0) 7833 continue; 7834 7835 ctl_clr_prkey(lun, i); 7836 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 7837 } 7838 lun->pr_key_count = 1; 7839 lun->pr_res_type = type; 7840 if (lun->pr_res_type != SPR_TYPE_WR_EX_AR && 7841 lun->pr_res_type != SPR_TYPE_EX_AC_AR) 7842 lun->pr_res_idx = residx; 7843 lun->pr_generation++; 7844 mtx_unlock(&lun->lun_lock); 7845 7846 /* send msg to other side */ 7847 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 7848 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 7849 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 7850 persis_io.pr.pr_info.residx = lun->pr_res_idx; 7851 persis_io.pr.pr_info.res_type = type; 7852 memcpy(persis_io.pr.pr_info.sa_res_key, 7853 param->serv_act_res_key, 7854 sizeof(param->serv_act_res_key)); 7855 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 7856 sizeof(persis_io.pr), M_WAITOK); 7857 } else { 7858 /* not all registrants */ 7859 mtx_unlock(&lun->lun_lock); 7860 free(ctsio->kern_data_ptr, M_CTL); 7861 ctl_set_invalid_field(ctsio, 7862 /*sks_valid*/ 1, 7863 /*command*/ 0, 7864 /*field*/ 8, 7865 /*bit_valid*/ 0, 7866 /*bit*/ 0); 7867 ctl_done((union ctl_io *)ctsio); 7868 return (1); 7869 } 7870 } else if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS 7871 || !(lun->flags & CTL_LUN_PR_RESERVED)) { 7872 int found = 0; 7873 7874 if (res_key == sa_res_key) { 7875 /* special case */ 7876 /* 7877 * The spec implies this is not good but doesn't 7878 * say what to do. There are two choices either 7879 * generate a res conflict or check condition 7880 * with illegal field in parameter data. Since 7881 * that is what is done when the sa_res_key is 7882 * zero I'll take that approach since this has 7883 * to do with the sa_res_key. 7884 */ 7885 mtx_unlock(&lun->lun_lock); 7886 free(ctsio->kern_data_ptr, M_CTL); 7887 ctl_set_invalid_field(ctsio, 7888 /*sks_valid*/ 1, 7889 /*command*/ 0, 7890 /*field*/ 8, 7891 /*bit_valid*/ 0, 7892 /*bit*/ 0); 7893 ctl_done((union ctl_io *)ctsio); 7894 return (1); 7895 } 7896 7897 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 7898 if (ctl_get_prkey(lun, i) != sa_res_key) 7899 continue; 7900 7901 found = 1; 7902 ctl_clr_prkey(lun, i); 7903 lun->pr_key_count--; 7904 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 7905 } 7906 if (!found) { 7907 mtx_unlock(&lun->lun_lock); 7908 free(ctsio->kern_data_ptr, M_CTL); 7909 ctl_set_reservation_conflict(ctsio); 7910 ctl_done((union ctl_io *)ctsio); 7911 return (CTL_RETVAL_COMPLETE); 7912 } 7913 lun->pr_generation++; 7914 mtx_unlock(&lun->lun_lock); 7915 7916 /* send msg to other side */ 7917 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 7918 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 7919 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 7920 persis_io.pr.pr_info.residx = lun->pr_res_idx; 7921 persis_io.pr.pr_info.res_type = type; 7922 memcpy(persis_io.pr.pr_info.sa_res_key, 7923 param->serv_act_res_key, 7924 sizeof(param->serv_act_res_key)); 7925 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 7926 sizeof(persis_io.pr), M_WAITOK); 7927 } else { 7928 /* Reserved but not all registrants */ 7929 /* sa_res_key is res holder */ 7930 if (sa_res_key == ctl_get_prkey(lun, lun->pr_res_idx)) { 7931 /* validate scope and type */ 7932 if ((cdb->scope_type & SPR_SCOPE_MASK) != 7933 SPR_LU_SCOPE) { 7934 mtx_unlock(&lun->lun_lock); 7935 ctl_set_invalid_field(/*ctsio*/ ctsio, 7936 /*sks_valid*/ 1, 7937 /*command*/ 1, 7938 /*field*/ 2, 7939 /*bit_valid*/ 1, 7940 /*bit*/ 4); 7941 ctl_done((union ctl_io *)ctsio); 7942 return (1); 7943 } 7944 7945 if (type>8 || type==2 || type==4 || type==0) { 7946 mtx_unlock(&lun->lun_lock); 7947 ctl_set_invalid_field(/*ctsio*/ ctsio, 7948 /*sks_valid*/ 1, 7949 /*command*/ 1, 7950 /*field*/ 2, 7951 /*bit_valid*/ 1, 7952 /*bit*/ 0); 7953 ctl_done((union ctl_io *)ctsio); 7954 return (1); 7955 } 7956 7957 /* 7958 * Do the following: 7959 * if sa_res_key != res_key remove all 7960 * registrants w/sa_res_key and generate UA 7961 * for these registrants(Registrations 7962 * Preempted) if it wasn't an exclusive 7963 * reservation generate UA(Reservations 7964 * Preempted) for all other registered nexuses 7965 * if the type has changed. Establish the new 7966 * reservation and holder. If res_key and 7967 * sa_res_key are the same do the above 7968 * except don't unregister the res holder. 7969 */ 7970 7971 for(i = 0; i < CTL_MAX_INITIATORS; i++) { 7972 if (i == residx || ctl_get_prkey(lun, i) == 0) 7973 continue; 7974 7975 if (sa_res_key == ctl_get_prkey(lun, i)) { 7976 ctl_clr_prkey(lun, i); 7977 lun->pr_key_count--; 7978 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 7979 } else if (type != lun->pr_res_type && 7980 (lun->pr_res_type == SPR_TYPE_WR_EX_RO || 7981 lun->pr_res_type == SPR_TYPE_EX_AC_RO)) { 7982 ctl_est_ua(lun, i, CTL_UA_RES_RELEASE); 7983 } 7984 } 7985 lun->pr_res_type = type; 7986 if (lun->pr_res_type != SPR_TYPE_WR_EX_AR && 7987 lun->pr_res_type != SPR_TYPE_EX_AC_AR) 7988 lun->pr_res_idx = residx; 7989 else 7990 lun->pr_res_idx = CTL_PR_ALL_REGISTRANTS; 7991 lun->pr_generation++; 7992 mtx_unlock(&lun->lun_lock); 7993 7994 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 7995 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 7996 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 7997 persis_io.pr.pr_info.residx = lun->pr_res_idx; 7998 persis_io.pr.pr_info.res_type = type; 7999 memcpy(persis_io.pr.pr_info.sa_res_key, 8000 param->serv_act_res_key, 8001 sizeof(param->serv_act_res_key)); 8002 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8003 sizeof(persis_io.pr), M_WAITOK); 8004 } else { 8005 /* 8006 * sa_res_key is not the res holder just 8007 * remove registrants 8008 */ 8009 int found=0; 8010 8011 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 8012 if (sa_res_key != ctl_get_prkey(lun, i)) 8013 continue; 8014 8015 found = 1; 8016 ctl_clr_prkey(lun, i); 8017 lun->pr_key_count--; 8018 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 8019 } 8020 8021 if (!found) { 8022 mtx_unlock(&lun->lun_lock); 8023 free(ctsio->kern_data_ptr, M_CTL); 8024 ctl_set_reservation_conflict(ctsio); 8025 ctl_done((union ctl_io *)ctsio); 8026 return (1); 8027 } 8028 lun->pr_generation++; 8029 mtx_unlock(&lun->lun_lock); 8030 8031 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8032 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8033 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 8034 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8035 persis_io.pr.pr_info.res_type = type; 8036 memcpy(persis_io.pr.pr_info.sa_res_key, 8037 param->serv_act_res_key, 8038 sizeof(param->serv_act_res_key)); 8039 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8040 sizeof(persis_io.pr), M_WAITOK); 8041 } 8042 } 8043 return (0); 8044} 8045 8046static void 8047ctl_pro_preempt_other(struct ctl_lun *lun, union ctl_ha_msg *msg) 8048{ 8049 uint64_t sa_res_key; 8050 int i; 8051 8052 sa_res_key = scsi_8btou64(msg->pr.pr_info.sa_res_key); 8053 8054 if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS 8055 || lun->pr_res_idx == CTL_PR_NO_RESERVATION 8056 || sa_res_key != ctl_get_prkey(lun, lun->pr_res_idx)) { 8057 if (sa_res_key == 0) { 8058 /* 8059 * Unregister everybody else and build UA for 8060 * them 8061 */ 8062 for(i = 0; i < CTL_MAX_INITIATORS; i++) { 8063 if (i == msg->pr.pr_info.residx || 8064 ctl_get_prkey(lun, i) == 0) 8065 continue; 8066 8067 ctl_clr_prkey(lun, i); 8068 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 8069 } 8070 8071 lun->pr_key_count = 1; 8072 lun->pr_res_type = msg->pr.pr_info.res_type; 8073 if (lun->pr_res_type != SPR_TYPE_WR_EX_AR && 8074 lun->pr_res_type != SPR_TYPE_EX_AC_AR) 8075 lun->pr_res_idx = msg->pr.pr_info.residx; 8076 } else { 8077 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 8078 if (sa_res_key == ctl_get_prkey(lun, i)) 8079 continue; 8080 8081 ctl_clr_prkey(lun, i); 8082 lun->pr_key_count--; 8083 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 8084 } 8085 } 8086 } else { 8087 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 8088 if (i == msg->pr.pr_info.residx || 8089 ctl_get_prkey(lun, i) == 0) 8090 continue; 8091 8092 if (sa_res_key == ctl_get_prkey(lun, i)) { 8093 ctl_clr_prkey(lun, i); 8094 lun->pr_key_count--; 8095 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 8096 } else if (msg->pr.pr_info.res_type != lun->pr_res_type 8097 && (lun->pr_res_type == SPR_TYPE_WR_EX_RO || 8098 lun->pr_res_type == SPR_TYPE_EX_AC_RO)) { 8099 ctl_est_ua(lun, i, CTL_UA_RES_RELEASE); 8100 } 8101 } 8102 lun->pr_res_type = msg->pr.pr_info.res_type; 8103 if (lun->pr_res_type != SPR_TYPE_WR_EX_AR && 8104 lun->pr_res_type != SPR_TYPE_EX_AC_AR) 8105 lun->pr_res_idx = msg->pr.pr_info.residx; 8106 else 8107 lun->pr_res_idx = CTL_PR_ALL_REGISTRANTS; 8108 } 8109 lun->pr_generation++; 8110 8111} 8112 8113 8114int 8115ctl_persistent_reserve_out(struct ctl_scsiio *ctsio) 8116{ 8117 int retval; 8118 u_int32_t param_len; 8119 struct scsi_per_res_out *cdb; 8120 struct ctl_lun *lun; 8121 struct scsi_per_res_out_parms* param; 8122 struct ctl_softc *softc; 8123 uint32_t residx; 8124 uint64_t res_key, sa_res_key, key; 8125 uint8_t type; 8126 union ctl_ha_msg persis_io; 8127 int i; 8128 8129 CTL_DEBUG_PRINT(("ctl_persistent_reserve_out\n")); 8130 8131 retval = CTL_RETVAL_COMPLETE; 8132 8133 cdb = (struct scsi_per_res_out *)ctsio->cdb; 8134 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 8135 softc = lun->ctl_softc; 8136 8137 /* 8138 * We only support whole-LUN scope. The scope & type are ignored for 8139 * register, register and ignore existing key and clear. 8140 * We sometimes ignore scope and type on preempts too!! 8141 * Verify reservation type here as well. 8142 */ 8143 type = cdb->scope_type & SPR_TYPE_MASK; 8144 if ((cdb->action == SPRO_RESERVE) 8145 || (cdb->action == SPRO_RELEASE)) { 8146 if ((cdb->scope_type & SPR_SCOPE_MASK) != SPR_LU_SCOPE) { 8147 ctl_set_invalid_field(/*ctsio*/ ctsio, 8148 /*sks_valid*/ 1, 8149 /*command*/ 1, 8150 /*field*/ 2, 8151 /*bit_valid*/ 1, 8152 /*bit*/ 4); 8153 ctl_done((union ctl_io *)ctsio); 8154 return (CTL_RETVAL_COMPLETE); 8155 } 8156 8157 if (type>8 || type==2 || type==4 || type==0) { 8158 ctl_set_invalid_field(/*ctsio*/ ctsio, 8159 /*sks_valid*/ 1, 8160 /*command*/ 1, 8161 /*field*/ 2, 8162 /*bit_valid*/ 1, 8163 /*bit*/ 0); 8164 ctl_done((union ctl_io *)ctsio); 8165 return (CTL_RETVAL_COMPLETE); 8166 } 8167 } 8168 8169 param_len = scsi_4btoul(cdb->length); 8170 8171 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 8172 ctsio->kern_data_ptr = malloc(param_len, M_CTL, M_WAITOK); 8173 ctsio->kern_data_len = param_len; 8174 ctsio->kern_total_len = param_len; 8175 ctsio->kern_data_resid = 0; 8176 ctsio->kern_rel_offset = 0; 8177 ctsio->kern_sg_entries = 0; 8178 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 8179 ctsio->be_move_done = ctl_config_move_done; 8180 ctl_datamove((union ctl_io *)ctsio); 8181 8182 return (CTL_RETVAL_COMPLETE); 8183 } 8184 8185 param = (struct scsi_per_res_out_parms *)ctsio->kern_data_ptr; 8186 8187 residx = ctl_get_initindex(&ctsio->io_hdr.nexus); 8188 res_key = scsi_8btou64(param->res_key.key); 8189 sa_res_key = scsi_8btou64(param->serv_act_res_key); 8190 8191 /* 8192 * Validate the reservation key here except for SPRO_REG_IGNO 8193 * This must be done for all other service actions 8194 */ 8195 if ((cdb->action & SPRO_ACTION_MASK) != SPRO_REG_IGNO) { 8196 mtx_lock(&lun->lun_lock); 8197 if ((key = ctl_get_prkey(lun, residx)) != 0) { 8198 if (res_key != key) { 8199 /* 8200 * The current key passed in doesn't match 8201 * the one the initiator previously 8202 * registered. 8203 */ 8204 mtx_unlock(&lun->lun_lock); 8205 free(ctsio->kern_data_ptr, M_CTL); 8206 ctl_set_reservation_conflict(ctsio); 8207 ctl_done((union ctl_io *)ctsio); 8208 return (CTL_RETVAL_COMPLETE); 8209 } 8210 } else if ((cdb->action & SPRO_ACTION_MASK) != SPRO_REGISTER) { 8211 /* 8212 * We are not registered 8213 */ 8214 mtx_unlock(&lun->lun_lock); 8215 free(ctsio->kern_data_ptr, M_CTL); 8216 ctl_set_reservation_conflict(ctsio); 8217 ctl_done((union ctl_io *)ctsio); 8218 return (CTL_RETVAL_COMPLETE); 8219 } else if (res_key != 0) { 8220 /* 8221 * We are not registered and trying to register but 8222 * the register key isn't zero. 8223 */ 8224 mtx_unlock(&lun->lun_lock); 8225 free(ctsio->kern_data_ptr, M_CTL); 8226 ctl_set_reservation_conflict(ctsio); 8227 ctl_done((union ctl_io *)ctsio); 8228 return (CTL_RETVAL_COMPLETE); 8229 } 8230 mtx_unlock(&lun->lun_lock); 8231 } 8232 8233 switch (cdb->action & SPRO_ACTION_MASK) { 8234 case SPRO_REGISTER: 8235 case SPRO_REG_IGNO: { 8236 8237#if 0 8238 printf("Registration received\n"); 8239#endif 8240 8241 /* 8242 * We don't support any of these options, as we report in 8243 * the read capabilities request (see 8244 * ctl_persistent_reserve_in(), above). 8245 */ 8246 if ((param->flags & SPR_SPEC_I_PT) 8247 || (param->flags & SPR_ALL_TG_PT) 8248 || (param->flags & SPR_APTPL)) { 8249 int bit_ptr; 8250 8251 if (param->flags & SPR_APTPL) 8252 bit_ptr = 0; 8253 else if (param->flags & SPR_ALL_TG_PT) 8254 bit_ptr = 2; 8255 else /* SPR_SPEC_I_PT */ 8256 bit_ptr = 3; 8257 8258 free(ctsio->kern_data_ptr, M_CTL); 8259 ctl_set_invalid_field(ctsio, 8260 /*sks_valid*/ 1, 8261 /*command*/ 0, 8262 /*field*/ 20, 8263 /*bit_valid*/ 1, 8264 /*bit*/ bit_ptr); 8265 ctl_done((union ctl_io *)ctsio); 8266 return (CTL_RETVAL_COMPLETE); 8267 } 8268 8269 mtx_lock(&lun->lun_lock); 8270 8271 /* 8272 * The initiator wants to clear the 8273 * key/unregister. 8274 */ 8275 if (sa_res_key == 0) { 8276 if ((res_key == 0 8277 && (cdb->action & SPRO_ACTION_MASK) == SPRO_REGISTER) 8278 || ((cdb->action & SPRO_ACTION_MASK) == SPRO_REG_IGNO 8279 && ctl_get_prkey(lun, residx) == 0)) { 8280 mtx_unlock(&lun->lun_lock); 8281 goto done; 8282 } 8283 8284 ctl_clr_prkey(lun, residx); 8285 lun->pr_key_count--; 8286 8287 if (residx == lun->pr_res_idx) { 8288 lun->flags &= ~CTL_LUN_PR_RESERVED; 8289 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8290 8291 if ((lun->pr_res_type == SPR_TYPE_WR_EX_RO || 8292 lun->pr_res_type == SPR_TYPE_EX_AC_RO) && 8293 lun->pr_key_count) { 8294 /* 8295 * If the reservation is a registrants 8296 * only type we need to generate a UA 8297 * for other registered inits. The 8298 * sense code should be RESERVATIONS 8299 * RELEASED 8300 */ 8301 8302 for (i = softc->init_min; i < softc->init_max; i++){ 8303 if (ctl_get_prkey(lun, i) == 0) 8304 continue; 8305 ctl_est_ua(lun, i, 8306 CTL_UA_RES_RELEASE); 8307 } 8308 } 8309 lun->pr_res_type = 0; 8310 } else if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS) { 8311 if (lun->pr_key_count==0) { 8312 lun->flags &= ~CTL_LUN_PR_RESERVED; 8313 lun->pr_res_type = 0; 8314 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8315 } 8316 } 8317 lun->pr_generation++; 8318 mtx_unlock(&lun->lun_lock); 8319 8320 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8321 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8322 persis_io.pr.pr_info.action = CTL_PR_UNREG_KEY; 8323 persis_io.pr.pr_info.residx = residx; 8324 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8325 sizeof(persis_io.pr), M_WAITOK); 8326 } else /* sa_res_key != 0 */ { 8327 8328 /* 8329 * If we aren't registered currently then increment 8330 * the key count and set the registered flag. 8331 */ 8332 ctl_alloc_prkey(lun, residx); 8333 if (ctl_get_prkey(lun, residx) == 0) 8334 lun->pr_key_count++; 8335 ctl_set_prkey(lun, residx, sa_res_key); 8336 lun->pr_generation++; 8337 mtx_unlock(&lun->lun_lock); 8338 8339 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8340 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8341 persis_io.pr.pr_info.action = CTL_PR_REG_KEY; 8342 persis_io.pr.pr_info.residx = residx; 8343 memcpy(persis_io.pr.pr_info.sa_res_key, 8344 param->serv_act_res_key, 8345 sizeof(param->serv_act_res_key)); 8346 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8347 sizeof(persis_io.pr), M_WAITOK); 8348 } 8349 8350 break; 8351 } 8352 case SPRO_RESERVE: 8353#if 0 8354 printf("Reserve executed type %d\n", type); 8355#endif 8356 mtx_lock(&lun->lun_lock); 8357 if (lun->flags & CTL_LUN_PR_RESERVED) { 8358 /* 8359 * if this isn't the reservation holder and it's 8360 * not a "all registrants" type or if the type is 8361 * different then we have a conflict 8362 */ 8363 if ((lun->pr_res_idx != residx 8364 && lun->pr_res_idx != CTL_PR_ALL_REGISTRANTS) 8365 || lun->pr_res_type != type) { 8366 mtx_unlock(&lun->lun_lock); 8367 free(ctsio->kern_data_ptr, M_CTL); 8368 ctl_set_reservation_conflict(ctsio); 8369 ctl_done((union ctl_io *)ctsio); 8370 return (CTL_RETVAL_COMPLETE); 8371 } 8372 mtx_unlock(&lun->lun_lock); 8373 } else /* create a reservation */ { 8374 /* 8375 * If it's not an "all registrants" type record 8376 * reservation holder 8377 */ 8378 if (type != SPR_TYPE_WR_EX_AR 8379 && type != SPR_TYPE_EX_AC_AR) 8380 lun->pr_res_idx = residx; /* Res holder */ 8381 else 8382 lun->pr_res_idx = CTL_PR_ALL_REGISTRANTS; 8383 8384 lun->flags |= CTL_LUN_PR_RESERVED; 8385 lun->pr_res_type = type; 8386 8387 mtx_unlock(&lun->lun_lock); 8388 8389 /* send msg to other side */ 8390 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8391 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8392 persis_io.pr.pr_info.action = CTL_PR_RESERVE; 8393 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8394 persis_io.pr.pr_info.res_type = type; 8395 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8396 sizeof(persis_io.pr), M_WAITOK); 8397 } 8398 break; 8399 8400 case SPRO_RELEASE: 8401 mtx_lock(&lun->lun_lock); 8402 if ((lun->flags & CTL_LUN_PR_RESERVED) == 0) { 8403 /* No reservation exists return good status */ 8404 mtx_unlock(&lun->lun_lock); 8405 goto done; 8406 } 8407 /* 8408 * Is this nexus a reservation holder? 8409 */ 8410 if (lun->pr_res_idx != residx 8411 && lun->pr_res_idx != CTL_PR_ALL_REGISTRANTS) { 8412 /* 8413 * not a res holder return good status but 8414 * do nothing 8415 */ 8416 mtx_unlock(&lun->lun_lock); 8417 goto done; 8418 } 8419 8420 if (lun->pr_res_type != type) { 8421 mtx_unlock(&lun->lun_lock); 8422 free(ctsio->kern_data_ptr, M_CTL); 8423 ctl_set_illegal_pr_release(ctsio); 8424 ctl_done((union ctl_io *)ctsio); 8425 return (CTL_RETVAL_COMPLETE); 8426 } 8427 8428 /* okay to release */ 8429 lun->flags &= ~CTL_LUN_PR_RESERVED; 8430 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8431 lun->pr_res_type = 0; 8432 8433 /* 8434 * If this isn't an exclusive access reservation and NUAR 8435 * is not set, generate UA for all other registrants. 8436 */ 8437 if (type != SPR_TYPE_EX_AC && type != SPR_TYPE_WR_EX && 8438 (lun->MODE_CTRL.queue_flags & SCP_NUAR) == 0) { 8439 for (i = softc->init_min; i < softc->init_max; i++) { 8440 if (i == residx || ctl_get_prkey(lun, i) == 0) 8441 continue; 8442 ctl_est_ua(lun, i, CTL_UA_RES_RELEASE); 8443 } 8444 } 8445 mtx_unlock(&lun->lun_lock); 8446 8447 /* Send msg to other side */ 8448 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8449 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8450 persis_io.pr.pr_info.action = CTL_PR_RELEASE; 8451 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8452 sizeof(persis_io.pr), M_WAITOK); 8453 break; 8454 8455 case SPRO_CLEAR: 8456 /* send msg to other side */ 8457 8458 mtx_lock(&lun->lun_lock); 8459 lun->flags &= ~CTL_LUN_PR_RESERVED; 8460 lun->pr_res_type = 0; 8461 lun->pr_key_count = 0; 8462 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8463 8464 ctl_clr_prkey(lun, residx); 8465 for (i = 0; i < CTL_MAX_INITIATORS; i++) 8466 if (ctl_get_prkey(lun, i) != 0) { 8467 ctl_clr_prkey(lun, i); 8468 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 8469 } 8470 lun->pr_generation++; 8471 mtx_unlock(&lun->lun_lock); 8472 8473 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8474 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8475 persis_io.pr.pr_info.action = CTL_PR_CLEAR; 8476 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8477 sizeof(persis_io.pr), M_WAITOK); 8478 break; 8479 8480 case SPRO_PREEMPT: 8481 case SPRO_PRE_ABO: { 8482 int nretval; 8483 8484 nretval = ctl_pro_preempt(softc, lun, res_key, sa_res_key, type, 8485 residx, ctsio, cdb, param); 8486 if (nretval != 0) 8487 return (CTL_RETVAL_COMPLETE); 8488 break; 8489 } 8490 default: 8491 panic("%s: Invalid PR type %#x", __func__, cdb->action); 8492 } 8493 8494done: 8495 free(ctsio->kern_data_ptr, M_CTL); 8496 ctl_set_success(ctsio); 8497 ctl_done((union ctl_io *)ctsio); 8498 8499 return (retval); 8500} 8501 8502/* 8503 * This routine is for handling a message from the other SC pertaining to 8504 * persistent reserve out. All the error checking will have been done 8505 * so only perorming the action need be done here to keep the two 8506 * in sync. 8507 */ 8508static void 8509ctl_hndl_per_res_out_on_other_sc(union ctl_ha_msg *msg) 8510{ 8511 struct ctl_softc *softc = control_softc; 8512 struct ctl_lun *lun; 8513 int i; 8514 uint32_t residx, targ_lun; 8515 8516 targ_lun = msg->hdr.nexus.targ_mapped_lun; 8517 mtx_lock(&softc->ctl_lock); 8518 if ((targ_lun >= CTL_MAX_LUNS) || 8519 ((lun = softc->ctl_luns[targ_lun]) == NULL)) { 8520 mtx_unlock(&softc->ctl_lock); 8521 return; 8522 } 8523 mtx_lock(&lun->lun_lock); 8524 mtx_unlock(&softc->ctl_lock); 8525 if (lun->flags & CTL_LUN_DISABLED) { 8526 mtx_unlock(&lun->lun_lock); 8527 return; 8528 } 8529 residx = ctl_get_initindex(&msg->hdr.nexus); 8530 switch(msg->pr.pr_info.action) { 8531 case CTL_PR_REG_KEY: 8532 ctl_alloc_prkey(lun, msg->pr.pr_info.residx); 8533 if (ctl_get_prkey(lun, msg->pr.pr_info.residx) == 0) 8534 lun->pr_key_count++; 8535 ctl_set_prkey(lun, msg->pr.pr_info.residx, 8536 scsi_8btou64(msg->pr.pr_info.sa_res_key)); 8537 lun->pr_generation++; 8538 break; 8539 8540 case CTL_PR_UNREG_KEY: 8541 ctl_clr_prkey(lun, msg->pr.pr_info.residx); 8542 lun->pr_key_count--; 8543 8544 /* XXX Need to see if the reservation has been released */ 8545 /* if so do we need to generate UA? */ 8546 if (msg->pr.pr_info.residx == lun->pr_res_idx) { 8547 lun->flags &= ~CTL_LUN_PR_RESERVED; 8548 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8549 8550 if ((lun->pr_res_type == SPR_TYPE_WR_EX_RO || 8551 lun->pr_res_type == SPR_TYPE_EX_AC_RO) && 8552 lun->pr_key_count) { 8553 /* 8554 * If the reservation is a registrants 8555 * only type we need to generate a UA 8556 * for other registered inits. The 8557 * sense code should be RESERVATIONS 8558 * RELEASED 8559 */ 8560 8561 for (i = softc->init_min; i < softc->init_max; i++) { 8562 if (ctl_get_prkey(lun, i) == 0) 8563 continue; 8564 8565 ctl_est_ua(lun, i, CTL_UA_RES_RELEASE); 8566 } 8567 } 8568 lun->pr_res_type = 0; 8569 } else if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS) { 8570 if (lun->pr_key_count==0) { 8571 lun->flags &= ~CTL_LUN_PR_RESERVED; 8572 lun->pr_res_type = 0; 8573 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8574 } 8575 } 8576 lun->pr_generation++; 8577 break; 8578 8579 case CTL_PR_RESERVE: 8580 lun->flags |= CTL_LUN_PR_RESERVED; 8581 lun->pr_res_type = msg->pr.pr_info.res_type; 8582 lun->pr_res_idx = msg->pr.pr_info.residx; 8583 8584 break; 8585 8586 case CTL_PR_RELEASE: 8587 /* 8588 * If this isn't an exclusive access reservation and NUAR 8589 * is not set, generate UA for all other registrants. 8590 */ 8591 if (lun->pr_res_type != SPR_TYPE_EX_AC && 8592 lun->pr_res_type != SPR_TYPE_WR_EX && 8593 (lun->MODE_CTRL.queue_flags & SCP_NUAR) == 0) { 8594 for (i = softc->init_min; i < softc->init_max; i++) 8595 if (i == residx || ctl_get_prkey(lun, i) == 0) 8596 continue; 8597 ctl_est_ua(lun, i, CTL_UA_RES_RELEASE); 8598 } 8599 8600 lun->flags &= ~CTL_LUN_PR_RESERVED; 8601 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8602 lun->pr_res_type = 0; 8603 break; 8604 8605 case CTL_PR_PREEMPT: 8606 ctl_pro_preempt_other(lun, msg); 8607 break; 8608 case CTL_PR_CLEAR: 8609 lun->flags &= ~CTL_LUN_PR_RESERVED; 8610 lun->pr_res_type = 0; 8611 lun->pr_key_count = 0; 8612 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8613 8614 for (i=0; i < CTL_MAX_INITIATORS; i++) { 8615 if (ctl_get_prkey(lun, i) == 0) 8616 continue; 8617 ctl_clr_prkey(lun, i); 8618 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 8619 } 8620 lun->pr_generation++; 8621 break; 8622 } 8623 8624 mtx_unlock(&lun->lun_lock); 8625} 8626 8627int 8628ctl_read_write(struct ctl_scsiio *ctsio) 8629{ 8630 struct ctl_lun *lun; 8631 struct ctl_lba_len_flags *lbalen; 8632 uint64_t lba; 8633 uint32_t num_blocks; 8634 int flags, retval; 8635 int isread; 8636 8637 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 8638 8639 CTL_DEBUG_PRINT(("ctl_read_write: command: %#x\n", ctsio->cdb[0])); 8640 8641 flags = 0; 8642 isread = ctsio->cdb[0] == READ_6 || ctsio->cdb[0] == READ_10 8643 || ctsio->cdb[0] == READ_12 || ctsio->cdb[0] == READ_16; 8644 switch (ctsio->cdb[0]) { 8645 case READ_6: 8646 case WRITE_6: { 8647 struct scsi_rw_6 *cdb; 8648 8649 cdb = (struct scsi_rw_6 *)ctsio->cdb; 8650 8651 lba = scsi_3btoul(cdb->addr); 8652 /* only 5 bits are valid in the most significant address byte */ 8653 lba &= 0x1fffff; 8654 num_blocks = cdb->length; 8655 /* 8656 * This is correct according to SBC-2. 8657 */ 8658 if (num_blocks == 0) 8659 num_blocks = 256; 8660 break; 8661 } 8662 case READ_10: 8663 case WRITE_10: { 8664 struct scsi_rw_10 *cdb; 8665 8666 cdb = (struct scsi_rw_10 *)ctsio->cdb; 8667 if (cdb->byte2 & SRW10_FUA) 8668 flags |= CTL_LLF_FUA; 8669 if (cdb->byte2 & SRW10_DPO) 8670 flags |= CTL_LLF_DPO; 8671 lba = scsi_4btoul(cdb->addr); 8672 num_blocks = scsi_2btoul(cdb->length); 8673 break; 8674 } 8675 case WRITE_VERIFY_10: { 8676 struct scsi_write_verify_10 *cdb; 8677 8678 cdb = (struct scsi_write_verify_10 *)ctsio->cdb; 8679 flags |= CTL_LLF_FUA; 8680 if (cdb->byte2 & SWV_DPO) 8681 flags |= CTL_LLF_DPO; 8682 lba = scsi_4btoul(cdb->addr); 8683 num_blocks = scsi_2btoul(cdb->length); 8684 break; 8685 } 8686 case READ_12: 8687 case WRITE_12: { 8688 struct scsi_rw_12 *cdb; 8689 8690 cdb = (struct scsi_rw_12 *)ctsio->cdb; 8691 if (cdb->byte2 & SRW12_FUA) 8692 flags |= CTL_LLF_FUA; 8693 if (cdb->byte2 & SRW12_DPO) 8694 flags |= CTL_LLF_DPO; 8695 lba = scsi_4btoul(cdb->addr); 8696 num_blocks = scsi_4btoul(cdb->length); 8697 break; 8698 } 8699 case WRITE_VERIFY_12: { 8700 struct scsi_write_verify_12 *cdb; 8701 8702 cdb = (struct scsi_write_verify_12 *)ctsio->cdb; 8703 flags |= CTL_LLF_FUA; 8704 if (cdb->byte2 & SWV_DPO) 8705 flags |= CTL_LLF_DPO; 8706 lba = scsi_4btoul(cdb->addr); 8707 num_blocks = scsi_4btoul(cdb->length); 8708 break; 8709 } 8710 case READ_16: 8711 case WRITE_16: { 8712 struct scsi_rw_16 *cdb; 8713 8714 cdb = (struct scsi_rw_16 *)ctsio->cdb; 8715 if (cdb->byte2 & SRW12_FUA) 8716 flags |= CTL_LLF_FUA; 8717 if (cdb->byte2 & SRW12_DPO) 8718 flags |= CTL_LLF_DPO; 8719 lba = scsi_8btou64(cdb->addr); 8720 num_blocks = scsi_4btoul(cdb->length); 8721 break; 8722 } 8723 case WRITE_ATOMIC_16: { 8724 struct scsi_write_atomic_16 *cdb; 8725 8726 if (lun->be_lun->atomicblock == 0) { 8727 ctl_set_invalid_opcode(ctsio); 8728 ctl_done((union ctl_io *)ctsio); 8729 return (CTL_RETVAL_COMPLETE); 8730 } 8731 8732 cdb = (struct scsi_write_atomic_16 *)ctsio->cdb; 8733 if (cdb->byte2 & SRW12_FUA) 8734 flags |= CTL_LLF_FUA; 8735 if (cdb->byte2 & SRW12_DPO) 8736 flags |= CTL_LLF_DPO; 8737 lba = scsi_8btou64(cdb->addr); 8738 num_blocks = scsi_2btoul(cdb->length); 8739 if (num_blocks > lun->be_lun->atomicblock) { 8740 ctl_set_invalid_field(ctsio, /*sks_valid*/ 1, 8741 /*command*/ 1, /*field*/ 12, /*bit_valid*/ 0, 8742 /*bit*/ 0); 8743 ctl_done((union ctl_io *)ctsio); 8744 return (CTL_RETVAL_COMPLETE); 8745 } 8746 break; 8747 } 8748 case WRITE_VERIFY_16: { 8749 struct scsi_write_verify_16 *cdb; 8750 8751 cdb = (struct scsi_write_verify_16 *)ctsio->cdb; 8752 flags |= CTL_LLF_FUA; 8753 if (cdb->byte2 & SWV_DPO) 8754 flags |= CTL_LLF_DPO; 8755 lba = scsi_8btou64(cdb->addr); 8756 num_blocks = scsi_4btoul(cdb->length); 8757 break; 8758 } 8759 default: 8760 /* 8761 * We got a command we don't support. This shouldn't 8762 * happen, commands should be filtered out above us. 8763 */ 8764 ctl_set_invalid_opcode(ctsio); 8765 ctl_done((union ctl_io *)ctsio); 8766 8767 return (CTL_RETVAL_COMPLETE); 8768 break; /* NOTREACHED */ 8769 } 8770 8771 /* 8772 * The first check is to make sure we're in bounds, the second 8773 * check is to catch wrap-around problems. If the lba + num blocks 8774 * is less than the lba, then we've wrapped around and the block 8775 * range is invalid anyway. 8776 */ 8777 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 8778 || ((lba + num_blocks) < lba)) { 8779 ctl_set_lba_out_of_range(ctsio); 8780 ctl_done((union ctl_io *)ctsio); 8781 return (CTL_RETVAL_COMPLETE); 8782 } 8783 8784 /* 8785 * According to SBC-3, a transfer length of 0 is not an error. 8786 * Note that this cannot happen with WRITE(6) or READ(6), since 0 8787 * translates to 256 blocks for those commands. 8788 */ 8789 if (num_blocks == 0) { 8790 ctl_set_success(ctsio); 8791 ctl_done((union ctl_io *)ctsio); 8792 return (CTL_RETVAL_COMPLETE); 8793 } 8794 8795 /* Set FUA and/or DPO if caches are disabled. */ 8796 if (isread) { 8797 if ((lun->MODE_CACHING.flags1 & SCP_RCD) != 0) 8798 flags |= CTL_LLF_FUA | CTL_LLF_DPO; 8799 } else { 8800 if ((lun->MODE_CACHING.flags1 & SCP_WCE) == 0) 8801 flags |= CTL_LLF_FUA; 8802 } 8803 8804 lbalen = (struct ctl_lba_len_flags *) 8805 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 8806 lbalen->lba = lba; 8807 lbalen->len = num_blocks; 8808 lbalen->flags = (isread ? CTL_LLF_READ : CTL_LLF_WRITE) | flags; 8809 8810 ctsio->kern_total_len = num_blocks * lun->be_lun->blocksize; 8811 ctsio->kern_rel_offset = 0; 8812 8813 CTL_DEBUG_PRINT(("ctl_read_write: calling data_submit()\n")); 8814 8815 retval = lun->backend->data_submit((union ctl_io *)ctsio); 8816 return (retval); 8817} 8818 8819static int 8820ctl_cnw_cont(union ctl_io *io) 8821{ 8822 struct ctl_scsiio *ctsio; 8823 struct ctl_lun *lun; 8824 struct ctl_lba_len_flags *lbalen; 8825 int retval; 8826 8827 ctsio = &io->scsiio; 8828 ctsio->io_hdr.status = CTL_STATUS_NONE; 8829 ctsio->io_hdr.flags &= ~CTL_FLAG_IO_CONT; 8830 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 8831 lbalen = (struct ctl_lba_len_flags *) 8832 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 8833 lbalen->flags &= ~CTL_LLF_COMPARE; 8834 lbalen->flags |= CTL_LLF_WRITE; 8835 8836 CTL_DEBUG_PRINT(("ctl_cnw_cont: calling data_submit()\n")); 8837 retval = lun->backend->data_submit((union ctl_io *)ctsio); 8838 return (retval); 8839} 8840 8841int 8842ctl_cnw(struct ctl_scsiio *ctsio) 8843{ 8844 struct ctl_lun *lun; 8845 struct ctl_lba_len_flags *lbalen; 8846 uint64_t lba; 8847 uint32_t num_blocks; 8848 int flags, retval; 8849 8850 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 8851 8852 CTL_DEBUG_PRINT(("ctl_cnw: command: %#x\n", ctsio->cdb[0])); 8853 8854 flags = 0; 8855 switch (ctsio->cdb[0]) { 8856 case COMPARE_AND_WRITE: { 8857 struct scsi_compare_and_write *cdb; 8858 8859 cdb = (struct scsi_compare_and_write *)ctsio->cdb; 8860 if (cdb->byte2 & SRW10_FUA) 8861 flags |= CTL_LLF_FUA; 8862 if (cdb->byte2 & SRW10_DPO) 8863 flags |= CTL_LLF_DPO; 8864 lba = scsi_8btou64(cdb->addr); 8865 num_blocks = cdb->length; 8866 break; 8867 } 8868 default: 8869 /* 8870 * We got a command we don't support. This shouldn't 8871 * happen, commands should be filtered out above us. 8872 */ 8873 ctl_set_invalid_opcode(ctsio); 8874 ctl_done((union ctl_io *)ctsio); 8875 8876 return (CTL_RETVAL_COMPLETE); 8877 break; /* NOTREACHED */ 8878 } 8879 8880 /* 8881 * The first check is to make sure we're in bounds, the second 8882 * check is to catch wrap-around problems. If the lba + num blocks 8883 * is less than the lba, then we've wrapped around and the block 8884 * range is invalid anyway. 8885 */ 8886 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 8887 || ((lba + num_blocks) < lba)) { 8888 ctl_set_lba_out_of_range(ctsio); 8889 ctl_done((union ctl_io *)ctsio); 8890 return (CTL_RETVAL_COMPLETE); 8891 } 8892 8893 /* 8894 * According to SBC-3, a transfer length of 0 is not an error. 8895 */ 8896 if (num_blocks == 0) { 8897 ctl_set_success(ctsio); 8898 ctl_done((union ctl_io *)ctsio); 8899 return (CTL_RETVAL_COMPLETE); 8900 } 8901 8902 /* Set FUA if write cache is disabled. */ 8903 if ((lun->MODE_CACHING.flags1 & SCP_WCE) == 0) 8904 flags |= CTL_LLF_FUA; 8905 8906 ctsio->kern_total_len = 2 * num_blocks * lun->be_lun->blocksize; 8907 ctsio->kern_rel_offset = 0; 8908 8909 /* 8910 * Set the IO_CONT flag, so that if this I/O gets passed to 8911 * ctl_data_submit_done(), it'll get passed back to 8912 * ctl_ctl_cnw_cont() for further processing. 8913 */ 8914 ctsio->io_hdr.flags |= CTL_FLAG_IO_CONT; 8915 ctsio->io_cont = ctl_cnw_cont; 8916 8917 lbalen = (struct ctl_lba_len_flags *) 8918 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 8919 lbalen->lba = lba; 8920 lbalen->len = num_blocks; 8921 lbalen->flags = CTL_LLF_COMPARE | flags; 8922 8923 CTL_DEBUG_PRINT(("ctl_cnw: calling data_submit()\n")); 8924 retval = lun->backend->data_submit((union ctl_io *)ctsio); 8925 return (retval); 8926} 8927 8928int 8929ctl_verify(struct ctl_scsiio *ctsio) 8930{ 8931 struct ctl_lun *lun; 8932 struct ctl_lba_len_flags *lbalen; 8933 uint64_t lba; 8934 uint32_t num_blocks; 8935 int bytchk, flags; 8936 int retval; 8937 8938 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 8939 8940 CTL_DEBUG_PRINT(("ctl_verify: command: %#x\n", ctsio->cdb[0])); 8941 8942 bytchk = 0; 8943 flags = CTL_LLF_FUA; 8944 switch (ctsio->cdb[0]) { 8945 case VERIFY_10: { 8946 struct scsi_verify_10 *cdb; 8947 8948 cdb = (struct scsi_verify_10 *)ctsio->cdb; 8949 if (cdb->byte2 & SVFY_BYTCHK) 8950 bytchk = 1; 8951 if (cdb->byte2 & SVFY_DPO) 8952 flags |= CTL_LLF_DPO; 8953 lba = scsi_4btoul(cdb->addr); 8954 num_blocks = scsi_2btoul(cdb->length); 8955 break; 8956 } 8957 case VERIFY_12: { 8958 struct scsi_verify_12 *cdb; 8959 8960 cdb = (struct scsi_verify_12 *)ctsio->cdb; 8961 if (cdb->byte2 & SVFY_BYTCHK) 8962 bytchk = 1; 8963 if (cdb->byte2 & SVFY_DPO) 8964 flags |= CTL_LLF_DPO; 8965 lba = scsi_4btoul(cdb->addr); 8966 num_blocks = scsi_4btoul(cdb->length); 8967 break; 8968 } 8969 case VERIFY_16: { 8970 struct scsi_rw_16 *cdb; 8971 8972 cdb = (struct scsi_rw_16 *)ctsio->cdb; 8973 if (cdb->byte2 & SVFY_BYTCHK) 8974 bytchk = 1; 8975 if (cdb->byte2 & SVFY_DPO) 8976 flags |= CTL_LLF_DPO; 8977 lba = scsi_8btou64(cdb->addr); 8978 num_blocks = scsi_4btoul(cdb->length); 8979 break; 8980 } 8981 default: 8982 /* 8983 * We got a command we don't support. This shouldn't 8984 * happen, commands should be filtered out above us. 8985 */ 8986 ctl_set_invalid_opcode(ctsio); 8987 ctl_done((union ctl_io *)ctsio); 8988 return (CTL_RETVAL_COMPLETE); 8989 } 8990 8991 /* 8992 * The first check is to make sure we're in bounds, the second 8993 * check is to catch wrap-around problems. If the lba + num blocks 8994 * is less than the lba, then we've wrapped around and the block 8995 * range is invalid anyway. 8996 */ 8997 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 8998 || ((lba + num_blocks) < lba)) { 8999 ctl_set_lba_out_of_range(ctsio); 9000 ctl_done((union ctl_io *)ctsio); 9001 return (CTL_RETVAL_COMPLETE); 9002 } 9003 9004 /* 9005 * According to SBC-3, a transfer length of 0 is not an error. 9006 */ 9007 if (num_blocks == 0) { 9008 ctl_set_success(ctsio); 9009 ctl_done((union ctl_io *)ctsio); 9010 return (CTL_RETVAL_COMPLETE); 9011 } 9012 9013 lbalen = (struct ctl_lba_len_flags *) 9014 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 9015 lbalen->lba = lba; 9016 lbalen->len = num_blocks; 9017 if (bytchk) { 9018 lbalen->flags = CTL_LLF_COMPARE | flags; 9019 ctsio->kern_total_len = num_blocks * lun->be_lun->blocksize; 9020 } else { 9021 lbalen->flags = CTL_LLF_VERIFY | flags; 9022 ctsio->kern_total_len = 0; 9023 } 9024 ctsio->kern_rel_offset = 0; 9025 9026 CTL_DEBUG_PRINT(("ctl_verify: calling data_submit()\n")); 9027 retval = lun->backend->data_submit((union ctl_io *)ctsio); 9028 return (retval); 9029} 9030 9031int 9032ctl_report_luns(struct ctl_scsiio *ctsio) 9033{ 9034 struct ctl_softc *softc; 9035 struct scsi_report_luns *cdb; 9036 struct scsi_report_luns_data *lun_data; 9037 struct ctl_lun *lun, *request_lun; 9038 struct ctl_port *port; 9039 int num_luns, retval; 9040 uint32_t alloc_len, lun_datalen; 9041 int num_filled; 9042 uint32_t initidx, targ_lun_id, lun_id; 9043 9044 retval = CTL_RETVAL_COMPLETE; 9045 cdb = (struct scsi_report_luns *)ctsio->cdb; 9046 port = ctl_io_port(&ctsio->io_hdr); 9047 softc = port->ctl_softc; 9048 9049 CTL_DEBUG_PRINT(("ctl_report_luns\n")); 9050 9051 mtx_lock(&softc->ctl_lock); 9052 num_luns = 0; 9053 for (targ_lun_id = 0; targ_lun_id < CTL_MAX_LUNS; targ_lun_id++) { 9054 if (ctl_lun_map_from_port(port, targ_lun_id) < CTL_MAX_LUNS) 9055 num_luns++; 9056 } 9057 mtx_unlock(&softc->ctl_lock); 9058 9059 switch (cdb->select_report) { 9060 case RPL_REPORT_DEFAULT: 9061 case RPL_REPORT_ALL: 9062 case RPL_REPORT_NONSUBSID: 9063 break; 9064 case RPL_REPORT_WELLKNOWN: 9065 case RPL_REPORT_ADMIN: 9066 case RPL_REPORT_CONGLOM: 9067 num_luns = 0; 9068 break; 9069 default: 9070 ctl_set_invalid_field(ctsio, 9071 /*sks_valid*/ 1, 9072 /*command*/ 1, 9073 /*field*/ 2, 9074 /*bit_valid*/ 0, 9075 /*bit*/ 0); 9076 ctl_done((union ctl_io *)ctsio); 9077 return (retval); 9078 break; /* NOTREACHED */ 9079 } 9080 9081 alloc_len = scsi_4btoul(cdb->length); 9082 /* 9083 * The initiator has to allocate at least 16 bytes for this request, 9084 * so he can at least get the header and the first LUN. Otherwise 9085 * we reject the request (per SPC-3 rev 14, section 6.21). 9086 */ 9087 if (alloc_len < (sizeof(struct scsi_report_luns_data) + 9088 sizeof(struct scsi_report_luns_lundata))) { 9089 ctl_set_invalid_field(ctsio, 9090 /*sks_valid*/ 1, 9091 /*command*/ 1, 9092 /*field*/ 6, 9093 /*bit_valid*/ 0, 9094 /*bit*/ 0); 9095 ctl_done((union ctl_io *)ctsio); 9096 return (retval); 9097 } 9098 9099 request_lun = (struct ctl_lun *) 9100 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9101 9102 lun_datalen = sizeof(*lun_data) + 9103 (num_luns * sizeof(struct scsi_report_luns_lundata)); 9104 9105 ctsio->kern_data_ptr = malloc(lun_datalen, M_CTL, M_WAITOK | M_ZERO); 9106 lun_data = (struct scsi_report_luns_data *)ctsio->kern_data_ptr; 9107 ctsio->kern_sg_entries = 0; 9108 9109 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 9110 9111 mtx_lock(&softc->ctl_lock); 9112 for (targ_lun_id = 0, num_filled = 0; targ_lun_id < CTL_MAX_LUNS && num_filled < num_luns; targ_lun_id++) { 9113 lun_id = ctl_lun_map_from_port(port, targ_lun_id); 9114 if (lun_id >= CTL_MAX_LUNS) 9115 continue; 9116 lun = softc->ctl_luns[lun_id]; 9117 if (lun == NULL) 9118 continue; 9119 9120 be64enc(lun_data->luns[num_filled++].lundata, 9121 ctl_encode_lun(targ_lun_id)); 9122 9123 /* 9124 * According to SPC-3, rev 14 section 6.21: 9125 * 9126 * "The execution of a REPORT LUNS command to any valid and 9127 * installed logical unit shall clear the REPORTED LUNS DATA 9128 * HAS CHANGED unit attention condition for all logical 9129 * units of that target with respect to the requesting 9130 * initiator. A valid and installed logical unit is one 9131 * having a PERIPHERAL QUALIFIER of 000b in the standard 9132 * INQUIRY data (see 6.4.2)." 9133 * 9134 * If request_lun is NULL, the LUN this report luns command 9135 * was issued to is either disabled or doesn't exist. In that 9136 * case, we shouldn't clear any pending lun change unit 9137 * attention. 9138 */ 9139 if (request_lun != NULL) { 9140 mtx_lock(&lun->lun_lock); 9141 ctl_clr_ua(lun, initidx, CTL_UA_LUN_CHANGE); 9142 mtx_unlock(&lun->lun_lock); 9143 } 9144 } 9145 mtx_unlock(&softc->ctl_lock); 9146 9147 /* 9148 * It's quite possible that we've returned fewer LUNs than we allocated 9149 * space for. Trim it. 9150 */ 9151 lun_datalen = sizeof(*lun_data) + 9152 (num_filled * sizeof(struct scsi_report_luns_lundata)); 9153 9154 if (lun_datalen < alloc_len) { 9155 ctsio->residual = alloc_len - lun_datalen; 9156 ctsio->kern_data_len = lun_datalen; 9157 ctsio->kern_total_len = lun_datalen; 9158 } else { 9159 ctsio->residual = 0; 9160 ctsio->kern_data_len = alloc_len; 9161 ctsio->kern_total_len = alloc_len; 9162 } 9163 ctsio->kern_data_resid = 0; 9164 ctsio->kern_rel_offset = 0; 9165 ctsio->kern_sg_entries = 0; 9166 9167 /* 9168 * We set this to the actual data length, regardless of how much 9169 * space we actually have to return results. If the user looks at 9170 * this value, he'll know whether or not he allocated enough space 9171 * and reissue the command if necessary. We don't support well 9172 * known logical units, so if the user asks for that, return none. 9173 */ 9174 scsi_ulto4b(lun_datalen - 8, lun_data->length); 9175 9176 /* 9177 * We can only return SCSI_STATUS_CHECK_COND when we can't satisfy 9178 * this request. 9179 */ 9180 ctl_set_success(ctsio); 9181 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9182 ctsio->be_move_done = ctl_config_move_done; 9183 ctl_datamove((union ctl_io *)ctsio); 9184 return (retval); 9185} 9186 9187int 9188ctl_request_sense(struct ctl_scsiio *ctsio) 9189{ 9190 struct scsi_request_sense *cdb; 9191 struct scsi_sense_data *sense_ptr; 9192 struct ctl_softc *softc; 9193 struct ctl_lun *lun; 9194 uint32_t initidx; 9195 int have_error; 9196 scsi_sense_data_type sense_format; 9197 ctl_ua_type ua_type; 9198 uint8_t asc = 0, ascq = 0; 9199 9200 cdb = (struct scsi_request_sense *)ctsio->cdb; 9201 9202 softc = control_softc; 9203 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9204 9205 CTL_DEBUG_PRINT(("ctl_request_sense\n")); 9206 9207 /* 9208 * Determine which sense format the user wants. 9209 */ 9210 if (cdb->byte2 & SRS_DESC) 9211 sense_format = SSD_TYPE_DESC; 9212 else 9213 sense_format = SSD_TYPE_FIXED; 9214 9215 ctsio->kern_data_ptr = malloc(sizeof(*sense_ptr), M_CTL, M_WAITOK); 9216 sense_ptr = (struct scsi_sense_data *)ctsio->kern_data_ptr; 9217 ctsio->kern_sg_entries = 0; 9218 9219 /* 9220 * struct scsi_sense_data, which is currently set to 256 bytes, is 9221 * larger than the largest allowed value for the length field in the 9222 * REQUEST SENSE CDB, which is 252 bytes as of SPC-4. 9223 */ 9224 ctsio->residual = 0; 9225 ctsio->kern_data_len = cdb->length; 9226 ctsio->kern_total_len = cdb->length; 9227 9228 ctsio->kern_data_resid = 0; 9229 ctsio->kern_rel_offset = 0; 9230 ctsio->kern_sg_entries = 0; 9231 9232 /* 9233 * If we don't have a LUN, we don't have any pending sense. 9234 */ 9235 if (lun == NULL || 9236 ((lun->flags & CTL_LUN_PRIMARY_SC) == 0 && 9237 softc->ha_link < CTL_HA_LINK_UNKNOWN)) { 9238 /* "Logical unit not supported" */ 9239 ctl_set_sense_data(sense_ptr, NULL, sense_format, 9240 /*current_error*/ 1, 9241 /*sense_key*/ SSD_KEY_ILLEGAL_REQUEST, 9242 /*asc*/ 0x25, 9243 /*ascq*/ 0x00, 9244 SSD_ELEM_NONE); 9245 goto send; 9246 } 9247 9248 have_error = 0; 9249 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 9250 /* 9251 * Check for pending sense, and then for pending unit attentions. 9252 * Pending sense gets returned first, then pending unit attentions. 9253 */ 9254 mtx_lock(&lun->lun_lock); 9255#ifdef CTL_WITH_CA 9256 if (ctl_is_set(lun->have_ca, initidx)) { 9257 scsi_sense_data_type stored_format; 9258 9259 /* 9260 * Check to see which sense format was used for the stored 9261 * sense data. 9262 */ 9263 stored_format = scsi_sense_type(&lun->pending_sense[initidx]); 9264 9265 /* 9266 * If the user requested a different sense format than the 9267 * one we stored, then we need to convert it to the other 9268 * format. If we're going from descriptor to fixed format 9269 * sense data, we may lose things in translation, depending 9270 * on what options were used. 9271 * 9272 * If the stored format is SSD_TYPE_NONE (i.e. invalid), 9273 * for some reason we'll just copy it out as-is. 9274 */ 9275 if ((stored_format == SSD_TYPE_FIXED) 9276 && (sense_format == SSD_TYPE_DESC)) 9277 ctl_sense_to_desc((struct scsi_sense_data_fixed *) 9278 &lun->pending_sense[initidx], 9279 (struct scsi_sense_data_desc *)sense_ptr); 9280 else if ((stored_format == SSD_TYPE_DESC) 9281 && (sense_format == SSD_TYPE_FIXED)) 9282 ctl_sense_to_fixed((struct scsi_sense_data_desc *) 9283 &lun->pending_sense[initidx], 9284 (struct scsi_sense_data_fixed *)sense_ptr); 9285 else 9286 memcpy(sense_ptr, &lun->pending_sense[initidx], 9287 MIN(sizeof(*sense_ptr), 9288 sizeof(lun->pending_sense[initidx]))); 9289 9290 ctl_clear_mask(lun->have_ca, initidx); 9291 have_error = 1; 9292 } else 9293#endif 9294 if (have_error == 0) { 9295 ua_type = ctl_build_ua(lun, initidx, sense_ptr, sense_format); 9296 if (ua_type != CTL_UA_NONE) 9297 have_error = 1; 9298 if (ua_type == CTL_UA_LUN_CHANGE) { 9299 mtx_unlock(&lun->lun_lock); 9300 mtx_lock(&softc->ctl_lock); 9301 ctl_clr_ua_allluns(softc, initidx, ua_type); 9302 mtx_unlock(&softc->ctl_lock); 9303 mtx_lock(&lun->lun_lock); 9304 } 9305 } 9306 if (have_error == 0) { 9307 /* 9308 * Report informational exception if have one and allowed. 9309 */ 9310 if (lun->MODE_IE.mrie != SIEP_MRIE_NO) { 9311 asc = lun->ie_asc; 9312 ascq = lun->ie_ascq; 9313 } 9314 ctl_set_sense_data(sense_ptr, lun, sense_format, 9315 /*current_error*/ 1, 9316 /*sense_key*/ SSD_KEY_NO_SENSE, 9317 /*asc*/ asc, 9318 /*ascq*/ ascq, 9319 SSD_ELEM_NONE); 9320 } 9321 mtx_unlock(&lun->lun_lock); 9322 9323send: 9324 /* 9325 * We report the SCSI status as OK, since the status of the command 9326 * itself is OK. We're reporting sense as parameter data. 9327 */ 9328 ctl_set_success(ctsio); 9329 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9330 ctsio->be_move_done = ctl_config_move_done; 9331 ctl_datamove((union ctl_io *)ctsio); 9332 return (CTL_RETVAL_COMPLETE); 9333} 9334 9335int 9336ctl_tur(struct ctl_scsiio *ctsio) 9337{ 9338 9339 CTL_DEBUG_PRINT(("ctl_tur\n")); 9340 9341 ctl_set_success(ctsio); 9342 ctl_done((union ctl_io *)ctsio); 9343 9344 return (CTL_RETVAL_COMPLETE); 9345} 9346 9347/* 9348 * SCSI VPD page 0x00, the Supported VPD Pages page. 9349 */ 9350static int 9351ctl_inquiry_evpd_supported(struct ctl_scsiio *ctsio, int alloc_len) 9352{ 9353 struct scsi_vpd_supported_pages *pages; 9354 int sup_page_size; 9355 struct ctl_lun *lun; 9356 int p; 9357 9358 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9359 9360 sup_page_size = sizeof(struct scsi_vpd_supported_pages) * 9361 SCSI_EVPD_NUM_SUPPORTED_PAGES; 9362 ctsio->kern_data_ptr = malloc(sup_page_size, M_CTL, M_WAITOK | M_ZERO); 9363 pages = (struct scsi_vpd_supported_pages *)ctsio->kern_data_ptr; 9364 ctsio->kern_sg_entries = 0; 9365 9366 if (sup_page_size < alloc_len) { 9367 ctsio->residual = alloc_len - sup_page_size; 9368 ctsio->kern_data_len = sup_page_size; 9369 ctsio->kern_total_len = sup_page_size; 9370 } else { 9371 ctsio->residual = 0; 9372 ctsio->kern_data_len = alloc_len; 9373 ctsio->kern_total_len = alloc_len; 9374 } 9375 ctsio->kern_data_resid = 0; 9376 ctsio->kern_rel_offset = 0; 9377 ctsio->kern_sg_entries = 0; 9378 9379 /* 9380 * The control device is always connected. The disk device, on the 9381 * other hand, may not be online all the time. Need to change this 9382 * to figure out whether the disk device is actually online or not. 9383 */ 9384 if (lun != NULL) 9385 pages->device = (SID_QUAL_LU_CONNECTED << 5) | 9386 lun->be_lun->lun_type; 9387 else 9388 pages->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9389 9390 p = 0; 9391 /* Supported VPD pages */ 9392 pages->page_list[p++] = SVPD_SUPPORTED_PAGES; 9393 /* Serial Number */ 9394 pages->page_list[p++] = SVPD_UNIT_SERIAL_NUMBER; 9395 /* Device Identification */ 9396 pages->page_list[p++] = SVPD_DEVICE_ID; 9397 /* Extended INQUIRY Data */ 9398 pages->page_list[p++] = SVPD_EXTENDED_INQUIRY_DATA; 9399 /* Mode Page Policy */ 9400 pages->page_list[p++] = SVPD_MODE_PAGE_POLICY; 9401 /* SCSI Ports */ 9402 pages->page_list[p++] = SVPD_SCSI_PORTS; 9403 /* Third-party Copy */ 9404 pages->page_list[p++] = SVPD_SCSI_TPC; 9405 if (lun != NULL && lun->be_lun->lun_type == T_DIRECT) { 9406 /* Block limits */ 9407 pages->page_list[p++] = SVPD_BLOCK_LIMITS; 9408 /* Block Device Characteristics */ 9409 pages->page_list[p++] = SVPD_BDC; 9410 /* Logical Block Provisioning */ 9411 pages->page_list[p++] = SVPD_LBP; 9412 } 9413 pages->length = p; 9414 9415 ctl_set_success(ctsio); 9416 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9417 ctsio->be_move_done = ctl_config_move_done; 9418 ctl_datamove((union ctl_io *)ctsio); 9419 return (CTL_RETVAL_COMPLETE); 9420} 9421 9422/* 9423 * SCSI VPD page 0x80, the Unit Serial Number page. 9424 */ 9425static int 9426ctl_inquiry_evpd_serial(struct ctl_scsiio *ctsio, int alloc_len) 9427{ 9428 struct scsi_vpd_unit_serial_number *sn_ptr; 9429 struct ctl_lun *lun; 9430 int data_len; 9431 9432 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9433 9434 data_len = 4 + CTL_SN_LEN; 9435 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9436 sn_ptr = (struct scsi_vpd_unit_serial_number *)ctsio->kern_data_ptr; 9437 if (data_len < alloc_len) { 9438 ctsio->residual = alloc_len - data_len; 9439 ctsio->kern_data_len = data_len; 9440 ctsio->kern_total_len = data_len; 9441 } else { 9442 ctsio->residual = 0; 9443 ctsio->kern_data_len = alloc_len; 9444 ctsio->kern_total_len = alloc_len; 9445 } 9446 ctsio->kern_data_resid = 0; 9447 ctsio->kern_rel_offset = 0; 9448 ctsio->kern_sg_entries = 0; 9449 9450 /* 9451 * The control device is always connected. The disk device, on the 9452 * other hand, may not be online all the time. Need to change this 9453 * to figure out whether the disk device is actually online or not. 9454 */ 9455 if (lun != NULL) 9456 sn_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9457 lun->be_lun->lun_type; 9458 else 9459 sn_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9460 9461 sn_ptr->page_code = SVPD_UNIT_SERIAL_NUMBER; 9462 sn_ptr->length = CTL_SN_LEN; 9463 /* 9464 * If we don't have a LUN, we just leave the serial number as 9465 * all spaces. 9466 */ 9467 if (lun != NULL) { 9468 strncpy((char *)sn_ptr->serial_num, 9469 (char *)lun->be_lun->serial_num, CTL_SN_LEN); 9470 } else 9471 memset(sn_ptr->serial_num, 0x20, CTL_SN_LEN); 9472 9473 ctl_set_success(ctsio); 9474 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9475 ctsio->be_move_done = ctl_config_move_done; 9476 ctl_datamove((union ctl_io *)ctsio); 9477 return (CTL_RETVAL_COMPLETE); 9478} 9479 9480 9481/* 9482 * SCSI VPD page 0x86, the Extended INQUIRY Data page. 9483 */ 9484static int 9485ctl_inquiry_evpd_eid(struct ctl_scsiio *ctsio, int alloc_len) 9486{ 9487 struct scsi_vpd_extended_inquiry_data *eid_ptr; 9488 struct ctl_lun *lun; 9489 int data_len; 9490 9491 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9492 9493 data_len = sizeof(struct scsi_vpd_extended_inquiry_data); 9494 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9495 eid_ptr = (struct scsi_vpd_extended_inquiry_data *)ctsio->kern_data_ptr; 9496 ctsio->kern_sg_entries = 0; 9497 9498 if (data_len < alloc_len) { 9499 ctsio->residual = alloc_len - data_len; 9500 ctsio->kern_data_len = data_len; 9501 ctsio->kern_total_len = data_len; 9502 } else { 9503 ctsio->residual = 0; 9504 ctsio->kern_data_len = alloc_len; 9505 ctsio->kern_total_len = alloc_len; 9506 } 9507 ctsio->kern_data_resid = 0; 9508 ctsio->kern_rel_offset = 0; 9509 ctsio->kern_sg_entries = 0; 9510 9511 /* 9512 * The control device is always connected. The disk device, on the 9513 * other hand, may not be online all the time. 9514 */ 9515 if (lun != NULL) 9516 eid_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9517 lun->be_lun->lun_type; 9518 else 9519 eid_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9520 eid_ptr->page_code = SVPD_EXTENDED_INQUIRY_DATA; 9521 scsi_ulto2b(data_len - 4, eid_ptr->page_length); 9522 /* 9523 * We support head of queue, ordered and simple tags. 9524 */ 9525 eid_ptr->flags2 = SVPD_EID_HEADSUP | SVPD_EID_ORDSUP | SVPD_EID_SIMPSUP; 9526 /* 9527 * Volatile cache supported. 9528 */ 9529 eid_ptr->flags3 = SVPD_EID_V_SUP; 9530 9531 /* 9532 * This means that we clear the REPORTED LUNS DATA HAS CHANGED unit 9533 * attention for a particular IT nexus on all LUNs once we report 9534 * it to that nexus once. This bit is required as of SPC-4. 9535 */ 9536 eid_ptr->flags4 = SVPD_EID_LUICLT; 9537 9538 /* 9539 * XXX KDM in order to correctly answer this, we would need 9540 * information from the SIM to determine how much sense data it 9541 * can send. So this would really be a path inquiry field, most 9542 * likely. This can be set to a maximum of 252 according to SPC-4, 9543 * but the hardware may or may not be able to support that much. 9544 * 0 just means that the maximum sense data length is not reported. 9545 */ 9546 eid_ptr->max_sense_length = 0; 9547 9548 ctl_set_success(ctsio); 9549 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9550 ctsio->be_move_done = ctl_config_move_done; 9551 ctl_datamove((union ctl_io *)ctsio); 9552 return (CTL_RETVAL_COMPLETE); 9553} 9554 9555static int 9556ctl_inquiry_evpd_mpp(struct ctl_scsiio *ctsio, int alloc_len) 9557{ 9558 struct scsi_vpd_mode_page_policy *mpp_ptr; 9559 struct ctl_lun *lun; 9560 int data_len; 9561 9562 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9563 9564 data_len = sizeof(struct scsi_vpd_mode_page_policy) + 9565 sizeof(struct scsi_vpd_mode_page_policy_descr); 9566 9567 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9568 mpp_ptr = (struct scsi_vpd_mode_page_policy *)ctsio->kern_data_ptr; 9569 ctsio->kern_sg_entries = 0; 9570 9571 if (data_len < alloc_len) { 9572 ctsio->residual = alloc_len - data_len; 9573 ctsio->kern_data_len = data_len; 9574 ctsio->kern_total_len = data_len; 9575 } else { 9576 ctsio->residual = 0; 9577 ctsio->kern_data_len = alloc_len; 9578 ctsio->kern_total_len = alloc_len; 9579 } 9580 ctsio->kern_data_resid = 0; 9581 ctsio->kern_rel_offset = 0; 9582 ctsio->kern_sg_entries = 0; 9583 9584 /* 9585 * The control device is always connected. The disk device, on the 9586 * other hand, may not be online all the time. 9587 */ 9588 if (lun != NULL) 9589 mpp_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9590 lun->be_lun->lun_type; 9591 else 9592 mpp_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9593 mpp_ptr->page_code = SVPD_MODE_PAGE_POLICY; 9594 scsi_ulto2b(data_len - 4, mpp_ptr->page_length); 9595 mpp_ptr->descr[0].page_code = 0x3f; 9596 mpp_ptr->descr[0].subpage_code = 0xff; 9597 mpp_ptr->descr[0].policy = SVPD_MPP_SHARED; 9598 9599 ctl_set_success(ctsio); 9600 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9601 ctsio->be_move_done = ctl_config_move_done; 9602 ctl_datamove((union ctl_io *)ctsio); 9603 return (CTL_RETVAL_COMPLETE); 9604} 9605 9606/* 9607 * SCSI VPD page 0x83, the Device Identification page. 9608 */ 9609static int 9610ctl_inquiry_evpd_devid(struct ctl_scsiio *ctsio, int alloc_len) 9611{ 9612 struct scsi_vpd_device_id *devid_ptr; 9613 struct scsi_vpd_id_descriptor *desc; 9614 struct ctl_softc *softc; 9615 struct ctl_lun *lun; 9616 struct ctl_port *port; 9617 int data_len, g; 9618 uint8_t proto; 9619 9620 softc = control_softc; 9621 9622 port = ctl_io_port(&ctsio->io_hdr); 9623 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9624 9625 data_len = sizeof(struct scsi_vpd_device_id) + 9626 sizeof(struct scsi_vpd_id_descriptor) + 9627 sizeof(struct scsi_vpd_id_rel_trgt_port_id) + 9628 sizeof(struct scsi_vpd_id_descriptor) + 9629 sizeof(struct scsi_vpd_id_trgt_port_grp_id); 9630 if (lun && lun->lun_devid) 9631 data_len += lun->lun_devid->len; 9632 if (port && port->port_devid) 9633 data_len += port->port_devid->len; 9634 if (port && port->target_devid) 9635 data_len += port->target_devid->len; 9636 9637 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9638 devid_ptr = (struct scsi_vpd_device_id *)ctsio->kern_data_ptr; 9639 ctsio->kern_sg_entries = 0; 9640 9641 if (data_len < alloc_len) { 9642 ctsio->residual = alloc_len - data_len; 9643 ctsio->kern_data_len = data_len; 9644 ctsio->kern_total_len = data_len; 9645 } else { 9646 ctsio->residual = 0; 9647 ctsio->kern_data_len = alloc_len; 9648 ctsio->kern_total_len = alloc_len; 9649 } 9650 ctsio->kern_data_resid = 0; 9651 ctsio->kern_rel_offset = 0; 9652 ctsio->kern_sg_entries = 0; 9653 9654 /* 9655 * The control device is always connected. The disk device, on the 9656 * other hand, may not be online all the time. 9657 */ 9658 if (lun != NULL) 9659 devid_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9660 lun->be_lun->lun_type; 9661 else 9662 devid_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9663 devid_ptr->page_code = SVPD_DEVICE_ID; 9664 scsi_ulto2b(data_len - 4, devid_ptr->length); 9665 9666 if (port && port->port_type == CTL_PORT_FC) 9667 proto = SCSI_PROTO_FC << 4; 9668 else if (port && port->port_type == CTL_PORT_ISCSI) 9669 proto = SCSI_PROTO_ISCSI << 4; 9670 else 9671 proto = SCSI_PROTO_SPI << 4; 9672 desc = (struct scsi_vpd_id_descriptor *)devid_ptr->desc_list; 9673 9674 /* 9675 * We're using a LUN association here. i.e., this device ID is a 9676 * per-LUN identifier. 9677 */ 9678 if (lun && lun->lun_devid) { 9679 memcpy(desc, lun->lun_devid->data, lun->lun_devid->len); 9680 desc = (struct scsi_vpd_id_descriptor *)((uint8_t *)desc + 9681 lun->lun_devid->len); 9682 } 9683 9684 /* 9685 * This is for the WWPN which is a port association. 9686 */ 9687 if (port && port->port_devid) { 9688 memcpy(desc, port->port_devid->data, port->port_devid->len); 9689 desc = (struct scsi_vpd_id_descriptor *)((uint8_t *)desc + 9690 port->port_devid->len); 9691 } 9692 9693 /* 9694 * This is for the Relative Target Port(type 4h) identifier 9695 */ 9696 desc->proto_codeset = proto | SVPD_ID_CODESET_BINARY; 9697 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_PORT | 9698 SVPD_ID_TYPE_RELTARG; 9699 desc->length = 4; 9700 scsi_ulto2b(ctsio->io_hdr.nexus.targ_port, &desc->identifier[2]); 9701 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 9702 sizeof(struct scsi_vpd_id_rel_trgt_port_id)); 9703 9704 /* 9705 * This is for the Target Port Group(type 5h) identifier 9706 */ 9707 desc->proto_codeset = proto | SVPD_ID_CODESET_BINARY; 9708 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_PORT | 9709 SVPD_ID_TYPE_TPORTGRP; 9710 desc->length = 4; 9711 if (softc->is_single || 9712 (port && port->status & CTL_PORT_STATUS_HA_SHARED)) 9713 g = 1; 9714 else 9715 g = 2 + ctsio->io_hdr.nexus.targ_port / softc->port_cnt; 9716 scsi_ulto2b(g, &desc->identifier[2]); 9717 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 9718 sizeof(struct scsi_vpd_id_trgt_port_grp_id)); 9719 9720 /* 9721 * This is for the Target identifier 9722 */ 9723 if (port && port->target_devid) { 9724 memcpy(desc, port->target_devid->data, port->target_devid->len); 9725 } 9726 9727 ctl_set_success(ctsio); 9728 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9729 ctsio->be_move_done = ctl_config_move_done; 9730 ctl_datamove((union ctl_io *)ctsio); 9731 return (CTL_RETVAL_COMPLETE); 9732} 9733 9734static int 9735ctl_inquiry_evpd_scsi_ports(struct ctl_scsiio *ctsio, int alloc_len) 9736{ 9737 struct ctl_softc *softc = control_softc; 9738 struct scsi_vpd_scsi_ports *sp; 9739 struct scsi_vpd_port_designation *pd; 9740 struct scsi_vpd_port_designation_cont *pdc; 9741 struct ctl_lun *lun; 9742 struct ctl_port *port; 9743 int data_len, num_target_ports, iid_len, id_len; 9744 9745 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9746 9747 num_target_ports = 0; 9748 iid_len = 0; 9749 id_len = 0; 9750 mtx_lock(&softc->ctl_lock); 9751 STAILQ_FOREACH(port, &softc->port_list, links) { 9752 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 9753 continue; 9754 if (lun != NULL && 9755 ctl_lun_map_to_port(port, lun->lun) >= CTL_MAX_LUNS) 9756 continue; 9757 num_target_ports++; 9758 if (port->init_devid) 9759 iid_len += port->init_devid->len; 9760 if (port->port_devid) 9761 id_len += port->port_devid->len; 9762 } 9763 mtx_unlock(&softc->ctl_lock); 9764 9765 data_len = sizeof(struct scsi_vpd_scsi_ports) + 9766 num_target_ports * (sizeof(struct scsi_vpd_port_designation) + 9767 sizeof(struct scsi_vpd_port_designation_cont)) + iid_len + id_len; 9768 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9769 sp = (struct scsi_vpd_scsi_ports *)ctsio->kern_data_ptr; 9770 ctsio->kern_sg_entries = 0; 9771 9772 if (data_len < alloc_len) { 9773 ctsio->residual = alloc_len - data_len; 9774 ctsio->kern_data_len = data_len; 9775 ctsio->kern_total_len = data_len; 9776 } else { 9777 ctsio->residual = 0; 9778 ctsio->kern_data_len = alloc_len; 9779 ctsio->kern_total_len = alloc_len; 9780 } 9781 ctsio->kern_data_resid = 0; 9782 ctsio->kern_rel_offset = 0; 9783 ctsio->kern_sg_entries = 0; 9784 9785 /* 9786 * The control device is always connected. The disk device, on the 9787 * other hand, may not be online all the time. Need to change this 9788 * to figure out whether the disk device is actually online or not. 9789 */ 9790 if (lun != NULL) 9791 sp->device = (SID_QUAL_LU_CONNECTED << 5) | 9792 lun->be_lun->lun_type; 9793 else 9794 sp->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9795 9796 sp->page_code = SVPD_SCSI_PORTS; 9797 scsi_ulto2b(data_len - sizeof(struct scsi_vpd_scsi_ports), 9798 sp->page_length); 9799 pd = &sp->design[0]; 9800 9801 mtx_lock(&softc->ctl_lock); 9802 STAILQ_FOREACH(port, &softc->port_list, links) { 9803 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 9804 continue; 9805 if (lun != NULL && 9806 ctl_lun_map_to_port(port, lun->lun) >= CTL_MAX_LUNS) 9807 continue; 9808 scsi_ulto2b(port->targ_port, pd->relative_port_id); 9809 if (port->init_devid) { 9810 iid_len = port->init_devid->len; 9811 memcpy(pd->initiator_transportid, 9812 port->init_devid->data, port->init_devid->len); 9813 } else 9814 iid_len = 0; 9815 scsi_ulto2b(iid_len, pd->initiator_transportid_length); 9816 pdc = (struct scsi_vpd_port_designation_cont *) 9817 (&pd->initiator_transportid[iid_len]); 9818 if (port->port_devid) { 9819 id_len = port->port_devid->len; 9820 memcpy(pdc->target_port_descriptors, 9821 port->port_devid->data, port->port_devid->len); 9822 } else 9823 id_len = 0; 9824 scsi_ulto2b(id_len, pdc->target_port_descriptors_length); 9825 pd = (struct scsi_vpd_port_designation *) 9826 ((uint8_t *)pdc->target_port_descriptors + id_len); 9827 } 9828 mtx_unlock(&softc->ctl_lock); 9829 9830 ctl_set_success(ctsio); 9831 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9832 ctsio->be_move_done = ctl_config_move_done; 9833 ctl_datamove((union ctl_io *)ctsio); 9834 return (CTL_RETVAL_COMPLETE); 9835} 9836 9837static int 9838ctl_inquiry_evpd_block_limits(struct ctl_scsiio *ctsio, int alloc_len) 9839{ 9840 struct scsi_vpd_block_limits *bl_ptr; 9841 struct ctl_lun *lun; 9842 uint64_t ival; 9843 9844 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9845 9846 ctsio->kern_data_ptr = malloc(sizeof(*bl_ptr), M_CTL, M_WAITOK | M_ZERO); 9847 bl_ptr = (struct scsi_vpd_block_limits *)ctsio->kern_data_ptr; 9848 ctsio->kern_sg_entries = 0; 9849 9850 if (sizeof(*bl_ptr) < alloc_len) { 9851 ctsio->residual = alloc_len - sizeof(*bl_ptr); 9852 ctsio->kern_data_len = sizeof(*bl_ptr); 9853 ctsio->kern_total_len = sizeof(*bl_ptr); 9854 } else { 9855 ctsio->residual = 0; 9856 ctsio->kern_data_len = alloc_len; 9857 ctsio->kern_total_len = alloc_len; 9858 } 9859 ctsio->kern_data_resid = 0; 9860 ctsio->kern_rel_offset = 0; 9861 ctsio->kern_sg_entries = 0; 9862 9863 /* 9864 * The control device is always connected. The disk device, on the 9865 * other hand, may not be online all the time. Need to change this 9866 * to figure out whether the disk device is actually online or not. 9867 */ 9868 if (lun != NULL) 9869 bl_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9870 lun->be_lun->lun_type; 9871 else 9872 bl_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9873 9874 bl_ptr->page_code = SVPD_BLOCK_LIMITS; 9875 scsi_ulto2b(sizeof(*bl_ptr) - 4, bl_ptr->page_length); 9876 bl_ptr->max_cmp_write_len = 0xff; 9877 scsi_ulto4b(0xffffffff, bl_ptr->max_txfer_len); 9878 if (lun != NULL) { 9879 scsi_ulto4b(lun->be_lun->opttxferlen, bl_ptr->opt_txfer_len); 9880 if (lun->be_lun->flags & CTL_LUN_FLAG_UNMAP) { 9881 ival = 0xffffffff; 9882 ctl_get_opt_number(&lun->be_lun->options, 9883 "unmap_max_lba", &ival); 9884 scsi_ulto4b(ival, bl_ptr->max_unmap_lba_cnt); 9885 ival = 0xffffffff; 9886 ctl_get_opt_number(&lun->be_lun->options, 9887 "unmap_max_descr", &ival); 9888 scsi_ulto4b(ival, bl_ptr->max_unmap_blk_cnt); 9889 if (lun->be_lun->ublockexp != 0) { 9890 scsi_ulto4b((1 << lun->be_lun->ublockexp), 9891 bl_ptr->opt_unmap_grain); 9892 scsi_ulto4b(0x80000000 | lun->be_lun->ublockoff, 9893 bl_ptr->unmap_grain_align); 9894 } 9895 } 9896 scsi_ulto4b(lun->be_lun->atomicblock, 9897 bl_ptr->max_atomic_transfer_length); 9898 scsi_ulto4b(0, bl_ptr->atomic_alignment); 9899 scsi_ulto4b(0, bl_ptr->atomic_transfer_length_granularity); 9900 scsi_ulto4b(0, bl_ptr->max_atomic_transfer_length_with_atomic_boundary); 9901 scsi_ulto4b(0, bl_ptr->max_atomic_boundary_size); 9902 ival = UINT64_MAX; 9903 ctl_get_opt_number(&lun->be_lun->options, "write_same_max_lba", &ival); 9904 scsi_u64to8b(ival, bl_ptr->max_write_same_length); 9905 } 9906 9907 ctl_set_success(ctsio); 9908 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9909 ctsio->be_move_done = ctl_config_move_done; 9910 ctl_datamove((union ctl_io *)ctsio); 9911 return (CTL_RETVAL_COMPLETE); 9912} 9913 9914static int 9915ctl_inquiry_evpd_bdc(struct ctl_scsiio *ctsio, int alloc_len) 9916{ 9917 struct scsi_vpd_block_device_characteristics *bdc_ptr; 9918 struct ctl_lun *lun; 9919 const char *value; 9920 u_int i; 9921 9922 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9923 9924 ctsio->kern_data_ptr = malloc(sizeof(*bdc_ptr), M_CTL, M_WAITOK | M_ZERO); 9925 bdc_ptr = (struct scsi_vpd_block_device_characteristics *)ctsio->kern_data_ptr; 9926 ctsio->kern_sg_entries = 0; 9927 9928 if (sizeof(*bdc_ptr) < alloc_len) { 9929 ctsio->residual = alloc_len - sizeof(*bdc_ptr); 9930 ctsio->kern_data_len = sizeof(*bdc_ptr); 9931 ctsio->kern_total_len = sizeof(*bdc_ptr); 9932 } else { 9933 ctsio->residual = 0; 9934 ctsio->kern_data_len = alloc_len; 9935 ctsio->kern_total_len = alloc_len; 9936 } 9937 ctsio->kern_data_resid = 0; 9938 ctsio->kern_rel_offset = 0; 9939 ctsio->kern_sg_entries = 0; 9940 9941 /* 9942 * The control device is always connected. The disk device, on the 9943 * other hand, may not be online all the time. Need to change this 9944 * to figure out whether the disk device is actually online or not. 9945 */ 9946 if (lun != NULL) 9947 bdc_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9948 lun->be_lun->lun_type; 9949 else 9950 bdc_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9951 bdc_ptr->page_code = SVPD_BDC; 9952 scsi_ulto2b(sizeof(*bdc_ptr) - 4, bdc_ptr->page_length); 9953 if (lun != NULL && 9954 (value = ctl_get_opt(&lun->be_lun->options, "rpm")) != NULL) 9955 i = strtol(value, NULL, 0); 9956 else 9957 i = CTL_DEFAULT_ROTATION_RATE; 9958 scsi_ulto2b(i, bdc_ptr->medium_rotation_rate); 9959 if (lun != NULL && 9960 (value = ctl_get_opt(&lun->be_lun->options, "formfactor")) != NULL) 9961 i = strtol(value, NULL, 0); 9962 else 9963 i = 0; 9964 bdc_ptr->wab_wac_ff = (i & 0x0f); 9965 bdc_ptr->flags = SVPD_FUAB | SVPD_VBULS; 9966 9967 ctl_set_success(ctsio); 9968 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9969 ctsio->be_move_done = ctl_config_move_done; 9970 ctl_datamove((union ctl_io *)ctsio); 9971 return (CTL_RETVAL_COMPLETE); 9972} 9973 9974static int 9975ctl_inquiry_evpd_lbp(struct ctl_scsiio *ctsio, int alloc_len) 9976{ 9977 struct scsi_vpd_logical_block_prov *lbp_ptr; 9978 struct ctl_lun *lun; 9979 const char *value; 9980 9981 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9982 9983 ctsio->kern_data_ptr = malloc(sizeof(*lbp_ptr), M_CTL, M_WAITOK | M_ZERO); 9984 lbp_ptr = (struct scsi_vpd_logical_block_prov *)ctsio->kern_data_ptr; 9985 ctsio->kern_sg_entries = 0; 9986 9987 if (sizeof(*lbp_ptr) < alloc_len) { 9988 ctsio->residual = alloc_len - sizeof(*lbp_ptr); 9989 ctsio->kern_data_len = sizeof(*lbp_ptr); 9990 ctsio->kern_total_len = sizeof(*lbp_ptr); 9991 } else { 9992 ctsio->residual = 0; 9993 ctsio->kern_data_len = alloc_len; 9994 ctsio->kern_total_len = alloc_len; 9995 } 9996 ctsio->kern_data_resid = 0; 9997 ctsio->kern_rel_offset = 0; 9998 ctsio->kern_sg_entries = 0; 9999 10000 /* 10001 * The control device is always connected. The disk device, on the 10002 * other hand, may not be online all the time. Need to change this 10003 * to figure out whether the disk device is actually online or not. 10004 */ 10005 if (lun != NULL) 10006 lbp_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10007 lun->be_lun->lun_type; 10008 else 10009 lbp_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10010 10011 lbp_ptr->page_code = SVPD_LBP; 10012 scsi_ulto2b(sizeof(*lbp_ptr) - 4, lbp_ptr->page_length); 10013 lbp_ptr->threshold_exponent = CTL_LBP_EXPONENT; 10014 if (lun != NULL && lun->be_lun->flags & CTL_LUN_FLAG_UNMAP) { 10015 lbp_ptr->flags = SVPD_LBP_UNMAP | SVPD_LBP_WS16 | 10016 SVPD_LBP_WS10 | SVPD_LBP_RZ | SVPD_LBP_ANC_SUP; 10017 value = ctl_get_opt(&lun->be_lun->options, "provisioning_type"); 10018 if (value != NULL) { 10019 if (strcmp(value, "resource") == 0) 10020 lbp_ptr->prov_type = SVPD_LBP_RESOURCE; 10021 else if (strcmp(value, "thin") == 0) 10022 lbp_ptr->prov_type = SVPD_LBP_THIN; 10023 } else 10024 lbp_ptr->prov_type = SVPD_LBP_THIN; 10025 } 10026 10027 ctl_set_success(ctsio); 10028 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10029 ctsio->be_move_done = ctl_config_move_done; 10030 ctl_datamove((union ctl_io *)ctsio); 10031 return (CTL_RETVAL_COMPLETE); 10032} 10033 10034/* 10035 * INQUIRY with the EVPD bit set. 10036 */ 10037static int 10038ctl_inquiry_evpd(struct ctl_scsiio *ctsio) 10039{ 10040 struct ctl_lun *lun; 10041 struct scsi_inquiry *cdb; 10042 int alloc_len, retval; 10043 10044 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10045 cdb = (struct scsi_inquiry *)ctsio->cdb; 10046 alloc_len = scsi_2btoul(cdb->length); 10047 10048 switch (cdb->page_code) { 10049 case SVPD_SUPPORTED_PAGES: 10050 retval = ctl_inquiry_evpd_supported(ctsio, alloc_len); 10051 break; 10052 case SVPD_UNIT_SERIAL_NUMBER: 10053 retval = ctl_inquiry_evpd_serial(ctsio, alloc_len); 10054 break; 10055 case SVPD_DEVICE_ID: 10056 retval = ctl_inquiry_evpd_devid(ctsio, alloc_len); 10057 break; 10058 case SVPD_EXTENDED_INQUIRY_DATA: 10059 retval = ctl_inquiry_evpd_eid(ctsio, alloc_len); 10060 break; 10061 case SVPD_MODE_PAGE_POLICY: 10062 retval = ctl_inquiry_evpd_mpp(ctsio, alloc_len); 10063 break; 10064 case SVPD_SCSI_PORTS: 10065 retval = ctl_inquiry_evpd_scsi_ports(ctsio, alloc_len); 10066 break; 10067 case SVPD_SCSI_TPC: 10068 retval = ctl_inquiry_evpd_tpc(ctsio, alloc_len); 10069 break; 10070 case SVPD_BLOCK_LIMITS: 10071 if (lun == NULL || lun->be_lun->lun_type != T_DIRECT) 10072 goto err; 10073 retval = ctl_inquiry_evpd_block_limits(ctsio, alloc_len); 10074 break; 10075 case SVPD_BDC: 10076 if (lun == NULL || lun->be_lun->lun_type != T_DIRECT) 10077 goto err; 10078 retval = ctl_inquiry_evpd_bdc(ctsio, alloc_len); 10079 break; 10080 case SVPD_LBP: 10081 if (lun == NULL || lun->be_lun->lun_type != T_DIRECT) 10082 goto err; 10083 retval = ctl_inquiry_evpd_lbp(ctsio, alloc_len); 10084 break; 10085 default: 10086err: 10087 ctl_set_invalid_field(ctsio, 10088 /*sks_valid*/ 1, 10089 /*command*/ 1, 10090 /*field*/ 2, 10091 /*bit_valid*/ 0, 10092 /*bit*/ 0); 10093 ctl_done((union ctl_io *)ctsio); 10094 retval = CTL_RETVAL_COMPLETE; 10095 break; 10096 } 10097 10098 return (retval); 10099} 10100 10101/* 10102 * Standard INQUIRY data. 10103 */ 10104static int 10105ctl_inquiry_std(struct ctl_scsiio *ctsio) 10106{ 10107 struct scsi_inquiry_data *inq_ptr; 10108 struct scsi_inquiry *cdb; 10109 struct ctl_softc *softc = control_softc; 10110 struct ctl_port *port; 10111 struct ctl_lun *lun; 10112 char *val; 10113 uint32_t alloc_len, data_len; 10114 ctl_port_type port_type; 10115 10116 port = ctl_io_port(&ctsio->io_hdr); 10117 port_type = port->port_type; 10118 if (port_type == CTL_PORT_IOCTL || port_type == CTL_PORT_INTERNAL) 10119 port_type = CTL_PORT_SCSI; 10120 10121 lun = ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10122 cdb = (struct scsi_inquiry *)ctsio->cdb; 10123 alloc_len = scsi_2btoul(cdb->length); 10124 10125 /* 10126 * We malloc the full inquiry data size here and fill it 10127 * in. If the user only asks for less, we'll give him 10128 * that much. 10129 */ 10130 data_len = offsetof(struct scsi_inquiry_data, vendor_specific1); 10131 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 10132 inq_ptr = (struct scsi_inquiry_data *)ctsio->kern_data_ptr; 10133 ctsio->kern_sg_entries = 0; 10134 ctsio->kern_data_resid = 0; 10135 ctsio->kern_rel_offset = 0; 10136 10137 if (data_len < alloc_len) { 10138 ctsio->residual = alloc_len - data_len; 10139 ctsio->kern_data_len = data_len; 10140 ctsio->kern_total_len = data_len; 10141 } else { 10142 ctsio->residual = 0; 10143 ctsio->kern_data_len = alloc_len; 10144 ctsio->kern_total_len = alloc_len; 10145 } 10146 10147 if (lun != NULL) { 10148 if ((lun->flags & CTL_LUN_PRIMARY_SC) || 10149 softc->ha_link >= CTL_HA_LINK_UNKNOWN) { 10150 inq_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10151 lun->be_lun->lun_type; 10152 } else { 10153 inq_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | 10154 lun->be_lun->lun_type; 10155 } 10156 if (lun->flags & CTL_LUN_REMOVABLE) 10157 inq_ptr->dev_qual2 |= SID_RMB; 10158 } else 10159 inq_ptr->device = (SID_QUAL_BAD_LU << 5) | T_NODEVICE; 10160 10161 /* RMB in byte 2 is 0 */ 10162 inq_ptr->version = SCSI_REV_SPC4; 10163 10164 /* 10165 * According to SAM-3, even if a device only supports a single 10166 * level of LUN addressing, it should still set the HISUP bit: 10167 * 10168 * 4.9.1 Logical unit numbers overview 10169 * 10170 * All logical unit number formats described in this standard are 10171 * hierarchical in structure even when only a single level in that 10172 * hierarchy is used. The HISUP bit shall be set to one in the 10173 * standard INQUIRY data (see SPC-2) when any logical unit number 10174 * format described in this standard is used. Non-hierarchical 10175 * formats are outside the scope of this standard. 10176 * 10177 * Therefore we set the HiSup bit here. 10178 * 10179 * The response format is 2, per SPC-3. 10180 */ 10181 inq_ptr->response_format = SID_HiSup | 2; 10182 10183 inq_ptr->additional_length = data_len - 10184 (offsetof(struct scsi_inquiry_data, additional_length) + 1); 10185 CTL_DEBUG_PRINT(("additional_length = %d\n", 10186 inq_ptr->additional_length)); 10187 10188 inq_ptr->spc3_flags = SPC3_SID_3PC | SPC3_SID_TPGS_IMPLICIT; 10189 if (port_type == CTL_PORT_SCSI) 10190 inq_ptr->spc2_flags = SPC2_SID_ADDR16; 10191 inq_ptr->spc2_flags |= SPC2_SID_MultiP; 10192 inq_ptr->flags = SID_CmdQue; 10193 if (port_type == CTL_PORT_SCSI) 10194 inq_ptr->flags |= SID_WBus16 | SID_Sync; 10195 10196 /* 10197 * Per SPC-3, unused bytes in ASCII strings are filled with spaces. 10198 * We have 8 bytes for the vendor name, and 16 bytes for the device 10199 * name and 4 bytes for the revision. 10200 */ 10201 if (lun == NULL || (val = ctl_get_opt(&lun->be_lun->options, 10202 "vendor")) == NULL) { 10203 strncpy(inq_ptr->vendor, CTL_VENDOR, sizeof(inq_ptr->vendor)); 10204 } else { 10205 memset(inq_ptr->vendor, ' ', sizeof(inq_ptr->vendor)); 10206 strncpy(inq_ptr->vendor, val, 10207 min(sizeof(inq_ptr->vendor), strlen(val))); 10208 } 10209 if (lun == NULL) { 10210 strncpy(inq_ptr->product, CTL_DIRECT_PRODUCT, 10211 sizeof(inq_ptr->product)); 10212 } else if ((val = ctl_get_opt(&lun->be_lun->options, "product")) == NULL) { 10213 switch (lun->be_lun->lun_type) { 10214 case T_DIRECT: 10215 strncpy(inq_ptr->product, CTL_DIRECT_PRODUCT, 10216 sizeof(inq_ptr->product)); 10217 break; 10218 case T_PROCESSOR: 10219 strncpy(inq_ptr->product, CTL_PROCESSOR_PRODUCT, 10220 sizeof(inq_ptr->product)); 10221 break; 10222 case T_CDROM: 10223 strncpy(inq_ptr->product, CTL_CDROM_PRODUCT, 10224 sizeof(inq_ptr->product)); 10225 break; 10226 default: 10227 strncpy(inq_ptr->product, CTL_UNKNOWN_PRODUCT, 10228 sizeof(inq_ptr->product)); 10229 break; 10230 } 10231 } else { 10232 memset(inq_ptr->product, ' ', sizeof(inq_ptr->product)); 10233 strncpy(inq_ptr->product, val, 10234 min(sizeof(inq_ptr->product), strlen(val))); 10235 } 10236 10237 /* 10238 * XXX make this a macro somewhere so it automatically gets 10239 * incremented when we make changes. 10240 */ 10241 if (lun == NULL || (val = ctl_get_opt(&lun->be_lun->options, 10242 "revision")) == NULL) { 10243 strncpy(inq_ptr->revision, "0001", sizeof(inq_ptr->revision)); 10244 } else { 10245 memset(inq_ptr->revision, ' ', sizeof(inq_ptr->revision)); 10246 strncpy(inq_ptr->revision, val, 10247 min(sizeof(inq_ptr->revision), strlen(val))); 10248 } 10249 10250 /* 10251 * For parallel SCSI, we support double transition and single 10252 * transition clocking. We also support QAS (Quick Arbitration 10253 * and Selection) and Information Unit transfers on both the 10254 * control and array devices. 10255 */ 10256 if (port_type == CTL_PORT_SCSI) 10257 inq_ptr->spi3data = SID_SPI_CLOCK_DT_ST | SID_SPI_QAS | 10258 SID_SPI_IUS; 10259 10260 /* SAM-5 (no version claimed) */ 10261 scsi_ulto2b(0x00A0, inq_ptr->version1); 10262 /* SPC-4 (no version claimed) */ 10263 scsi_ulto2b(0x0460, inq_ptr->version2); 10264 if (port_type == CTL_PORT_FC) { 10265 /* FCP-2 ANSI INCITS.350:2003 */ 10266 scsi_ulto2b(0x0917, inq_ptr->version3); 10267 } else if (port_type == CTL_PORT_SCSI) { 10268 /* SPI-4 ANSI INCITS.362:200x */ 10269 scsi_ulto2b(0x0B56, inq_ptr->version3); 10270 } else if (port_type == CTL_PORT_ISCSI) { 10271 /* iSCSI (no version claimed) */ 10272 scsi_ulto2b(0x0960, inq_ptr->version3); 10273 } else if (port_type == CTL_PORT_SAS) { 10274 /* SAS (no version claimed) */ 10275 scsi_ulto2b(0x0BE0, inq_ptr->version3); 10276 } 10277 10278 if (lun == NULL) { 10279 /* SBC-4 (no version claimed) */ 10280 scsi_ulto2b(0x0600, inq_ptr->version4); 10281 } else { 10282 switch (lun->be_lun->lun_type) { 10283 case T_DIRECT: 10284 /* SBC-4 (no version claimed) */ 10285 scsi_ulto2b(0x0600, inq_ptr->version4); 10286 break; 10287 case T_PROCESSOR: 10288 break; 10289 case T_CDROM: 10290 /* MMC-6 (no version claimed) */ 10291 scsi_ulto2b(0x04E0, inq_ptr->version4); 10292 break; 10293 default: 10294 break; 10295 } 10296 } 10297 10298 ctl_set_success(ctsio); 10299 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10300 ctsio->be_move_done = ctl_config_move_done; 10301 ctl_datamove((union ctl_io *)ctsio); 10302 return (CTL_RETVAL_COMPLETE); 10303} 10304 10305int 10306ctl_inquiry(struct ctl_scsiio *ctsio) 10307{ 10308 struct scsi_inquiry *cdb; 10309 int retval; 10310 10311 CTL_DEBUG_PRINT(("ctl_inquiry\n")); 10312 10313 cdb = (struct scsi_inquiry *)ctsio->cdb; 10314 if (cdb->byte2 & SI_EVPD) 10315 retval = ctl_inquiry_evpd(ctsio); 10316 else if (cdb->page_code == 0) 10317 retval = ctl_inquiry_std(ctsio); 10318 else { 10319 ctl_set_invalid_field(ctsio, 10320 /*sks_valid*/ 1, 10321 /*command*/ 1, 10322 /*field*/ 2, 10323 /*bit_valid*/ 0, 10324 /*bit*/ 0); 10325 ctl_done((union ctl_io *)ctsio); 10326 return (CTL_RETVAL_COMPLETE); 10327 } 10328 10329 return (retval); 10330} 10331 10332int 10333ctl_get_config(struct ctl_scsiio *ctsio) 10334{ 10335 struct scsi_get_config_header *hdr; 10336 struct scsi_get_config_feature *feature; 10337 struct scsi_get_config *cdb; 10338 struct ctl_lun *lun; 10339 uint32_t alloc_len, data_len; 10340 int rt, starting; 10341 10342 lun = ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10343 cdb = (struct scsi_get_config *)ctsio->cdb; 10344 rt = (cdb->rt & SGC_RT_MASK); 10345 starting = scsi_2btoul(cdb->starting_feature); 10346 alloc_len = scsi_2btoul(cdb->length); 10347 10348 data_len = sizeof(struct scsi_get_config_header) + 10349 sizeof(struct scsi_get_config_feature) + 8 + 10350 sizeof(struct scsi_get_config_feature) + 8 + 10351 sizeof(struct scsi_get_config_feature) + 4 + 10352 sizeof(struct scsi_get_config_feature) + 4 + 10353 sizeof(struct scsi_get_config_feature) + 8 + 10354 sizeof(struct scsi_get_config_feature) + 10355 sizeof(struct scsi_get_config_feature) + 4 + 10356 sizeof(struct scsi_get_config_feature) + 4 + 10357 sizeof(struct scsi_get_config_feature) + 4 + 10358 sizeof(struct scsi_get_config_feature) + 4 + 10359 sizeof(struct scsi_get_config_feature) + 4 + 10360 sizeof(struct scsi_get_config_feature) + 4; 10361 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 10362 ctsio->kern_sg_entries = 0; 10363 ctsio->kern_data_resid = 0; 10364 ctsio->kern_rel_offset = 0; 10365 10366 hdr = (struct scsi_get_config_header *)ctsio->kern_data_ptr; 10367 if (lun->flags & CTL_LUN_NO_MEDIA) 10368 scsi_ulto2b(0x0000, hdr->current_profile); 10369 else 10370 scsi_ulto2b(0x0010, hdr->current_profile); 10371 feature = (struct scsi_get_config_feature *)(hdr + 1); 10372 10373 if (starting > 0x003b) 10374 goto done; 10375 if (starting > 0x003a) 10376 goto f3b; 10377 if (starting > 0x002b) 10378 goto f3a; 10379 if (starting > 0x002a) 10380 goto f2b; 10381 if (starting > 0x001f) 10382 goto f2a; 10383 if (starting > 0x001e) 10384 goto f1f; 10385 if (starting > 0x001d) 10386 goto f1e; 10387 if (starting > 0x0010) 10388 goto f1d; 10389 if (starting > 0x0003) 10390 goto f10; 10391 if (starting > 0x0002) 10392 goto f3; 10393 if (starting > 0x0001) 10394 goto f2; 10395 if (starting > 0x0000) 10396 goto f1; 10397 10398 /* Profile List */ 10399 scsi_ulto2b(0x0000, feature->feature_code); 10400 feature->flags = SGC_F_PERSISTENT | SGC_F_CURRENT; 10401 feature->add_length = 8; 10402 scsi_ulto2b(0x0008, &feature->feature_data[0]); /* CD-ROM */ 10403 feature->feature_data[2] = 0x00; 10404 scsi_ulto2b(0x0010, &feature->feature_data[4]); /* DVD-ROM */ 10405 feature->feature_data[6] = 0x01; 10406 feature = (struct scsi_get_config_feature *) 10407 &feature->feature_data[feature->add_length]; 10408 10409f1: /* Core */ 10410 scsi_ulto2b(0x0001, feature->feature_code); 10411 feature->flags = 0x08 | SGC_F_PERSISTENT | SGC_F_CURRENT; 10412 feature->add_length = 8; 10413 scsi_ulto4b(0x00000000, &feature->feature_data[0]); 10414 feature->feature_data[4] = 0x03; 10415 feature = (struct scsi_get_config_feature *) 10416 &feature->feature_data[feature->add_length]; 10417 10418f2: /* Morphing */ 10419 scsi_ulto2b(0x0002, feature->feature_code); 10420 feature->flags = 0x04 | SGC_F_PERSISTENT | SGC_F_CURRENT; 10421 feature->add_length = 4; 10422 feature->feature_data[0] = 0x02; 10423 feature = (struct scsi_get_config_feature *) 10424 &feature->feature_data[feature->add_length]; 10425 10426f3: /* Removable Medium */ 10427 scsi_ulto2b(0x0003, feature->feature_code); 10428 feature->flags = 0x04 | SGC_F_PERSISTENT | SGC_F_CURRENT; 10429 feature->add_length = 4; 10430 feature->feature_data[0] = 0x39; 10431 feature = (struct scsi_get_config_feature *) 10432 &feature->feature_data[feature->add_length]; 10433 10434 if (rt == SGC_RT_CURRENT && (lun->flags & CTL_LUN_NO_MEDIA)) 10435 goto done; 10436 10437f10: /* Random Read */ 10438 scsi_ulto2b(0x0010, feature->feature_code); 10439 feature->flags = 0x00; 10440 if ((lun->flags & CTL_LUN_NO_MEDIA) == 0) 10441 feature->flags |= SGC_F_CURRENT; 10442 feature->add_length = 8; 10443 scsi_ulto4b(lun->be_lun->blocksize, &feature->feature_data[0]); 10444 scsi_ulto2b(1, &feature->feature_data[4]); 10445 feature->feature_data[6] = 0x00; 10446 feature = (struct scsi_get_config_feature *) 10447 &feature->feature_data[feature->add_length]; 10448 10449f1d: /* Multi-Read */ 10450 scsi_ulto2b(0x001D, feature->feature_code); 10451 feature->flags = 0x00; 10452 if ((lun->flags & CTL_LUN_NO_MEDIA) == 0) 10453 feature->flags |= SGC_F_CURRENT; 10454 feature->add_length = 0; 10455 feature = (struct scsi_get_config_feature *) 10456 &feature->feature_data[feature->add_length]; 10457 10458f1e: /* CD Read */ 10459 scsi_ulto2b(0x001E, feature->feature_code); 10460 feature->flags = 0x00; 10461 if ((lun->flags & CTL_LUN_NO_MEDIA) == 0) 10462 feature->flags |= SGC_F_CURRENT; 10463 feature->add_length = 4; 10464 feature->feature_data[0] = 0x00; 10465 feature = (struct scsi_get_config_feature *) 10466 &feature->feature_data[feature->add_length]; 10467 10468f1f: /* DVD Read */ 10469 scsi_ulto2b(0x001F, feature->feature_code); 10470 feature->flags = 0x08; 10471 if ((lun->flags & CTL_LUN_NO_MEDIA) == 0) 10472 feature->flags |= SGC_F_CURRENT; 10473 feature->add_length = 4; 10474 feature->feature_data[0] = 0x01; 10475 feature->feature_data[2] = 0x03; 10476 feature = (struct scsi_get_config_feature *) 10477 &feature->feature_data[feature->add_length]; 10478 10479f2a: /* DVD+RW */ 10480 scsi_ulto2b(0x002A, feature->feature_code); 10481 feature->flags = 0x04; 10482 if ((lun->flags & CTL_LUN_NO_MEDIA) == 0) 10483 feature->flags |= SGC_F_CURRENT; 10484 feature->add_length = 4; 10485 feature->feature_data[0] = 0x00; 10486 feature->feature_data[1] = 0x00; 10487 feature = (struct scsi_get_config_feature *) 10488 &feature->feature_data[feature->add_length]; 10489 10490f2b: /* DVD+R */ 10491 scsi_ulto2b(0x002B, feature->feature_code); 10492 feature->flags = 0x00; 10493 if ((lun->flags & CTL_LUN_NO_MEDIA) == 0) 10494 feature->flags |= SGC_F_CURRENT; 10495 feature->add_length = 4; 10496 feature->feature_data[0] = 0x00; 10497 feature = (struct scsi_get_config_feature *) 10498 &feature->feature_data[feature->add_length]; 10499 10500f3a: /* DVD+RW Dual Layer */ 10501 scsi_ulto2b(0x003A, feature->feature_code); 10502 feature->flags = 0x00; 10503 if ((lun->flags & CTL_LUN_NO_MEDIA) == 0) 10504 feature->flags |= SGC_F_CURRENT; 10505 feature->add_length = 4; 10506 feature->feature_data[0] = 0x00; 10507 feature->feature_data[1] = 0x00; 10508 feature = (struct scsi_get_config_feature *) 10509 &feature->feature_data[feature->add_length]; 10510 10511f3b: /* DVD+R Dual Layer */ 10512 scsi_ulto2b(0x003B, feature->feature_code); 10513 feature->flags = 0x00; 10514 if ((lun->flags & CTL_LUN_NO_MEDIA) == 0) 10515 feature->flags |= SGC_F_CURRENT; 10516 feature->add_length = 4; 10517 feature->feature_data[0] = 0x00; 10518 feature = (struct scsi_get_config_feature *) 10519 &feature->feature_data[feature->add_length]; 10520 10521done: 10522 data_len = (uint8_t *)feature - (uint8_t *)hdr; 10523 if (rt == SGC_RT_SPECIFIC && data_len > 4) { 10524 feature = (struct scsi_get_config_feature *)(hdr + 1); 10525 if (scsi_2btoul(feature->feature_code) == starting) 10526 feature = (struct scsi_get_config_feature *) 10527 &feature->feature_data[feature->add_length]; 10528 data_len = (uint8_t *)feature - (uint8_t *)hdr; 10529 } 10530 scsi_ulto4b(data_len - 4, hdr->data_length); 10531 if (data_len < alloc_len) { 10532 ctsio->residual = alloc_len - data_len; 10533 ctsio->kern_data_len = data_len; 10534 ctsio->kern_total_len = data_len; 10535 } else { 10536 ctsio->residual = 0; 10537 ctsio->kern_data_len = alloc_len; 10538 ctsio->kern_total_len = alloc_len; 10539 } 10540 10541 ctl_set_success(ctsio); 10542 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10543 ctsio->be_move_done = ctl_config_move_done; 10544 ctl_datamove((union ctl_io *)ctsio); 10545 return (CTL_RETVAL_COMPLETE); 10546} 10547 10548int 10549ctl_get_event_status(struct ctl_scsiio *ctsio) 10550{ 10551 struct scsi_get_event_status_header *hdr; 10552 struct scsi_get_event_status *cdb; 10553 struct ctl_lun *lun; 10554 uint32_t alloc_len, data_len; 10555 int notif_class; 10556 10557 lun = ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10558 cdb = (struct scsi_get_event_status *)ctsio->cdb; 10559 if ((cdb->byte2 & SGESN_POLLED) == 0) { 10560 ctl_set_invalid_field(ctsio, /*sks_valid*/ 1, /*command*/ 1, 10561 /*field*/ 1, /*bit_valid*/ 1, /*bit*/ 0); 10562 ctl_done((union ctl_io *)ctsio); 10563 return (CTL_RETVAL_COMPLETE); 10564 } 10565 notif_class = cdb->notif_class; 10566 alloc_len = scsi_2btoul(cdb->length); 10567 10568 data_len = sizeof(struct scsi_get_event_status_header); 10569 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 10570 ctsio->kern_sg_entries = 0; 10571 ctsio->kern_data_resid = 0; 10572 ctsio->kern_rel_offset = 0; 10573 10574 if (data_len < alloc_len) { 10575 ctsio->residual = alloc_len - data_len; 10576 ctsio->kern_data_len = data_len; 10577 ctsio->kern_total_len = data_len; 10578 } else { 10579 ctsio->residual = 0; 10580 ctsio->kern_data_len = alloc_len; 10581 ctsio->kern_total_len = alloc_len; 10582 } 10583 10584 hdr = (struct scsi_get_event_status_header *)ctsio->kern_data_ptr; 10585 scsi_ulto2b(0, hdr->descr_length); 10586 hdr->nea_class = SGESN_NEA; 10587 hdr->supported_class = 0; 10588 10589 ctl_set_success(ctsio); 10590 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10591 ctsio->be_move_done = ctl_config_move_done; 10592 ctl_datamove((union ctl_io *)ctsio); 10593 return (CTL_RETVAL_COMPLETE); 10594} 10595 10596int 10597ctl_mechanism_status(struct ctl_scsiio *ctsio) 10598{ 10599 struct scsi_mechanism_status_header *hdr; 10600 struct scsi_mechanism_status *cdb; 10601 struct ctl_lun *lun; 10602 uint32_t alloc_len, data_len; 10603 10604 lun = ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10605 cdb = (struct scsi_mechanism_status *)ctsio->cdb; 10606 alloc_len = scsi_2btoul(cdb->length); 10607 10608 data_len = sizeof(struct scsi_mechanism_status_header); 10609 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 10610 ctsio->kern_sg_entries = 0; 10611 ctsio->kern_data_resid = 0; 10612 ctsio->kern_rel_offset = 0; 10613 10614 if (data_len < alloc_len) { 10615 ctsio->residual = alloc_len - data_len; 10616 ctsio->kern_data_len = data_len; 10617 ctsio->kern_total_len = data_len; 10618 } else { 10619 ctsio->residual = 0; 10620 ctsio->kern_data_len = alloc_len; 10621 ctsio->kern_total_len = alloc_len; 10622 } 10623 10624 hdr = (struct scsi_mechanism_status_header *)ctsio->kern_data_ptr; 10625 hdr->state1 = 0x00; 10626 hdr->state2 = 0xe0; 10627 scsi_ulto3b(0, hdr->lba); 10628 hdr->slots_num = 0; 10629 scsi_ulto2b(0, hdr->slots_length); 10630 10631 ctl_set_success(ctsio); 10632 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10633 ctsio->be_move_done = ctl_config_move_done; 10634 ctl_datamove((union ctl_io *)ctsio); 10635 return (CTL_RETVAL_COMPLETE); 10636} 10637 10638static void 10639ctl_ultomsf(uint32_t lba, uint8_t *buf) 10640{ 10641 10642 lba += 150; 10643 buf[0] = 0; 10644 buf[1] = bin2bcd((lba / 75) / 60); 10645 buf[2] = bin2bcd((lba / 75) % 60); 10646 buf[3] = bin2bcd(lba % 75); 10647} 10648 10649int 10650ctl_read_toc(struct ctl_scsiio *ctsio) 10651{ 10652 struct scsi_read_toc_hdr *hdr; 10653 struct scsi_read_toc_type01_descr *descr; 10654 struct scsi_read_toc *cdb; 10655 struct ctl_lun *lun; 10656 uint32_t alloc_len, data_len; 10657 int format, msf; 10658 10659 lun = ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10660 cdb = (struct scsi_read_toc *)ctsio->cdb; 10661 msf = (cdb->byte2 & CD_MSF) != 0; 10662 format = cdb->format; 10663 alloc_len = scsi_2btoul(cdb->data_len); 10664 10665 data_len = sizeof(struct scsi_read_toc_hdr); 10666 if (format == 0) 10667 data_len += 2 * sizeof(struct scsi_read_toc_type01_descr); 10668 else 10669 data_len += sizeof(struct scsi_read_toc_type01_descr); 10670 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 10671 ctsio->kern_sg_entries = 0; 10672 ctsio->kern_data_resid = 0; 10673 ctsio->kern_rel_offset = 0; 10674 10675 if (data_len < alloc_len) { 10676 ctsio->residual = alloc_len - data_len; 10677 ctsio->kern_data_len = data_len; 10678 ctsio->kern_total_len = data_len; 10679 } else { 10680 ctsio->residual = 0; 10681 ctsio->kern_data_len = alloc_len; 10682 ctsio->kern_total_len = alloc_len; 10683 } 10684 10685 hdr = (struct scsi_read_toc_hdr *)ctsio->kern_data_ptr; 10686 if (format == 0) { 10687 scsi_ulto2b(0x12, hdr->data_length); 10688 hdr->first = 1; 10689 hdr->last = 1; 10690 descr = (struct scsi_read_toc_type01_descr *)(hdr + 1); 10691 descr->addr_ctl = 0x14; 10692 descr->track_number = 1; 10693 if (msf) 10694 ctl_ultomsf(0, descr->track_start); 10695 else 10696 scsi_ulto4b(0, descr->track_start); 10697 descr++; 10698 descr->addr_ctl = 0x14; 10699 descr->track_number = 0xaa; 10700 if (msf) 10701 ctl_ultomsf(lun->be_lun->maxlba+1, descr->track_start); 10702 else 10703 scsi_ulto4b(lun->be_lun->maxlba+1, descr->track_start); 10704 } else { 10705 scsi_ulto2b(0x0a, hdr->data_length); 10706 hdr->first = 1; 10707 hdr->last = 1; 10708 descr = (struct scsi_read_toc_type01_descr *)(hdr + 1); 10709 descr->addr_ctl = 0x14; 10710 descr->track_number = 1; 10711 if (msf) 10712 ctl_ultomsf(0, descr->track_start); 10713 else 10714 scsi_ulto4b(0, descr->track_start); 10715 } 10716 10717 ctl_set_success(ctsio); 10718 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10719 ctsio->be_move_done = ctl_config_move_done; 10720 ctl_datamove((union ctl_io *)ctsio); 10721 return (CTL_RETVAL_COMPLETE); 10722} 10723 10724/* 10725 * For known CDB types, parse the LBA and length. 10726 */ 10727static int 10728ctl_get_lba_len(union ctl_io *io, uint64_t *lba, uint64_t *len) 10729{ 10730 if (io->io_hdr.io_type != CTL_IO_SCSI) 10731 return (1); 10732 10733 switch (io->scsiio.cdb[0]) { 10734 case COMPARE_AND_WRITE: { 10735 struct scsi_compare_and_write *cdb; 10736 10737 cdb = (struct scsi_compare_and_write *)io->scsiio.cdb; 10738 10739 *lba = scsi_8btou64(cdb->addr); 10740 *len = cdb->length; 10741 break; 10742 } 10743 case READ_6: 10744 case WRITE_6: { 10745 struct scsi_rw_6 *cdb; 10746 10747 cdb = (struct scsi_rw_6 *)io->scsiio.cdb; 10748 10749 *lba = scsi_3btoul(cdb->addr); 10750 /* only 5 bits are valid in the most significant address byte */ 10751 *lba &= 0x1fffff; 10752 *len = cdb->length; 10753 break; 10754 } 10755 case READ_10: 10756 case WRITE_10: { 10757 struct scsi_rw_10 *cdb; 10758 10759 cdb = (struct scsi_rw_10 *)io->scsiio.cdb; 10760 10761 *lba = scsi_4btoul(cdb->addr); 10762 *len = scsi_2btoul(cdb->length); 10763 break; 10764 } 10765 case WRITE_VERIFY_10: { 10766 struct scsi_write_verify_10 *cdb; 10767 10768 cdb = (struct scsi_write_verify_10 *)io->scsiio.cdb; 10769 10770 *lba = scsi_4btoul(cdb->addr); 10771 *len = scsi_2btoul(cdb->length); 10772 break; 10773 } 10774 case READ_12: 10775 case WRITE_12: { 10776 struct scsi_rw_12 *cdb; 10777 10778 cdb = (struct scsi_rw_12 *)io->scsiio.cdb; 10779 10780 *lba = scsi_4btoul(cdb->addr); 10781 *len = scsi_4btoul(cdb->length); 10782 break; 10783 } 10784 case WRITE_VERIFY_12: { 10785 struct scsi_write_verify_12 *cdb; 10786 10787 cdb = (struct scsi_write_verify_12 *)io->scsiio.cdb; 10788 10789 *lba = scsi_4btoul(cdb->addr); 10790 *len = scsi_4btoul(cdb->length); 10791 break; 10792 } 10793 case READ_16: 10794 case WRITE_16: { 10795 struct scsi_rw_16 *cdb; 10796 10797 cdb = (struct scsi_rw_16 *)io->scsiio.cdb; 10798 10799 *lba = scsi_8btou64(cdb->addr); 10800 *len = scsi_4btoul(cdb->length); 10801 break; 10802 } 10803 case WRITE_ATOMIC_16: { 10804 struct scsi_write_atomic_16 *cdb; 10805 10806 cdb = (struct scsi_write_atomic_16 *)io->scsiio.cdb; 10807 10808 *lba = scsi_8btou64(cdb->addr); 10809 *len = scsi_2btoul(cdb->length); 10810 break; 10811 } 10812 case WRITE_VERIFY_16: { 10813 struct scsi_write_verify_16 *cdb; 10814 10815 cdb = (struct scsi_write_verify_16 *)io->scsiio.cdb; 10816 10817 *lba = scsi_8btou64(cdb->addr); 10818 *len = scsi_4btoul(cdb->length); 10819 break; 10820 } 10821 case WRITE_SAME_10: { 10822 struct scsi_write_same_10 *cdb; 10823 10824 cdb = (struct scsi_write_same_10 *)io->scsiio.cdb; 10825 10826 *lba = scsi_4btoul(cdb->addr); 10827 *len = scsi_2btoul(cdb->length); 10828 break; 10829 } 10830 case WRITE_SAME_16: { 10831 struct scsi_write_same_16 *cdb; 10832 10833 cdb = (struct scsi_write_same_16 *)io->scsiio.cdb; 10834 10835 *lba = scsi_8btou64(cdb->addr); 10836 *len = scsi_4btoul(cdb->length); 10837 break; 10838 } 10839 case VERIFY_10: { 10840 struct scsi_verify_10 *cdb; 10841 10842 cdb = (struct scsi_verify_10 *)io->scsiio.cdb; 10843 10844 *lba = scsi_4btoul(cdb->addr); 10845 *len = scsi_2btoul(cdb->length); 10846 break; 10847 } 10848 case VERIFY_12: { 10849 struct scsi_verify_12 *cdb; 10850 10851 cdb = (struct scsi_verify_12 *)io->scsiio.cdb; 10852 10853 *lba = scsi_4btoul(cdb->addr); 10854 *len = scsi_4btoul(cdb->length); 10855 break; 10856 } 10857 case VERIFY_16: { 10858 struct scsi_verify_16 *cdb; 10859 10860 cdb = (struct scsi_verify_16 *)io->scsiio.cdb; 10861 10862 *lba = scsi_8btou64(cdb->addr); 10863 *len = scsi_4btoul(cdb->length); 10864 break; 10865 } 10866 case UNMAP: { 10867 *lba = 0; 10868 *len = UINT64_MAX; 10869 break; 10870 } 10871 case SERVICE_ACTION_IN: { /* GET LBA STATUS */ 10872 struct scsi_get_lba_status *cdb; 10873 10874 cdb = (struct scsi_get_lba_status *)io->scsiio.cdb; 10875 *lba = scsi_8btou64(cdb->addr); 10876 *len = UINT32_MAX; 10877 break; 10878 } 10879 default: 10880 return (1); 10881 break; /* NOTREACHED */ 10882 } 10883 10884 return (0); 10885} 10886 10887static ctl_action 10888ctl_extent_check_lba(uint64_t lba1, uint64_t len1, uint64_t lba2, uint64_t len2, 10889 bool seq) 10890{ 10891 uint64_t endlba1, endlba2; 10892 10893 endlba1 = lba1 + len1 - (seq ? 0 : 1); 10894 endlba2 = lba2 + len2 - 1; 10895 10896 if ((endlba1 < lba2) || (endlba2 < lba1)) 10897 return (CTL_ACTION_PASS); 10898 else 10899 return (CTL_ACTION_BLOCK); 10900} 10901 10902static int 10903ctl_extent_check_unmap(union ctl_io *io, uint64_t lba2, uint64_t len2) 10904{ 10905 struct ctl_ptr_len_flags *ptrlen; 10906 struct scsi_unmap_desc *buf, *end, *range; 10907 uint64_t lba; 10908 uint32_t len; 10909 10910 /* If not UNMAP -- go other way. */ 10911 if (io->io_hdr.io_type != CTL_IO_SCSI || 10912 io->scsiio.cdb[0] != UNMAP) 10913 return (CTL_ACTION_ERROR); 10914 10915 /* If UNMAP without data -- block and wait for data. */ 10916 ptrlen = (struct ctl_ptr_len_flags *) 10917 &io->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 10918 if ((io->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0 || 10919 ptrlen->ptr == NULL) 10920 return (CTL_ACTION_BLOCK); 10921 10922 /* UNMAP with data -- check for collision. */ 10923 buf = (struct scsi_unmap_desc *)ptrlen->ptr; 10924 end = buf + ptrlen->len / sizeof(*buf); 10925 for (range = buf; range < end; range++) { 10926 lba = scsi_8btou64(range->lba); 10927 len = scsi_4btoul(range->length); 10928 if ((lba < lba2 + len2) && (lba + len > lba2)) 10929 return (CTL_ACTION_BLOCK); 10930 } 10931 return (CTL_ACTION_PASS); 10932} 10933 10934static ctl_action 10935ctl_extent_check(union ctl_io *io1, union ctl_io *io2, bool seq) 10936{ 10937 uint64_t lba1, lba2; 10938 uint64_t len1, len2; 10939 int retval; 10940 10941 if (ctl_get_lba_len(io2, &lba2, &len2) != 0) 10942 return (CTL_ACTION_ERROR); 10943 10944 retval = ctl_extent_check_unmap(io1, lba2, len2); 10945 if (retval != CTL_ACTION_ERROR) 10946 return (retval); 10947 10948 if (ctl_get_lba_len(io1, &lba1, &len1) != 0) 10949 return (CTL_ACTION_ERROR); 10950 10951 if (io1->io_hdr.flags & CTL_FLAG_SERSEQ_DONE) 10952 seq = FALSE; 10953 return (ctl_extent_check_lba(lba1, len1, lba2, len2, seq)); 10954} 10955 10956static ctl_action 10957ctl_extent_check_seq(union ctl_io *io1, union ctl_io *io2) 10958{ 10959 uint64_t lba1, lba2; 10960 uint64_t len1, len2; 10961 10962 if (io1->io_hdr.flags & CTL_FLAG_SERSEQ_DONE) 10963 return (CTL_ACTION_PASS); 10964 if (ctl_get_lba_len(io1, &lba1, &len1) != 0) 10965 return (CTL_ACTION_ERROR); 10966 if (ctl_get_lba_len(io2, &lba2, &len2) != 0) 10967 return (CTL_ACTION_ERROR); 10968 10969 if (lba1 + len1 == lba2) 10970 return (CTL_ACTION_BLOCK); 10971 return (CTL_ACTION_PASS); 10972} 10973 10974static ctl_action 10975ctl_check_for_blockage(struct ctl_lun *lun, union ctl_io *pending_io, 10976 union ctl_io *ooa_io) 10977{ 10978 const struct ctl_cmd_entry *pending_entry, *ooa_entry; 10979 const ctl_serialize_action *serialize_row; 10980 10981 /* 10982 * The initiator attempted multiple untagged commands at the same 10983 * time. Can't do that. 10984 */ 10985 if ((pending_io->scsiio.tag_type == CTL_TAG_UNTAGGED) 10986 && (ooa_io->scsiio.tag_type == CTL_TAG_UNTAGGED) 10987 && ((pending_io->io_hdr.nexus.targ_port == 10988 ooa_io->io_hdr.nexus.targ_port) 10989 && (pending_io->io_hdr.nexus.initid == 10990 ooa_io->io_hdr.nexus.initid)) 10991 && ((ooa_io->io_hdr.flags & (CTL_FLAG_ABORT | 10992 CTL_FLAG_STATUS_SENT)) == 0)) 10993 return (CTL_ACTION_OVERLAP); 10994 10995 /* 10996 * The initiator attempted to send multiple tagged commands with 10997 * the same ID. (It's fine if different initiators have the same 10998 * tag ID.) 10999 * 11000 * Even if all of those conditions are true, we don't kill the I/O 11001 * if the command ahead of us has been aborted. We won't end up 11002 * sending it to the FETD, and it's perfectly legal to resend a 11003 * command with the same tag number as long as the previous 11004 * instance of this tag number has been aborted somehow. 11005 */ 11006 if ((pending_io->scsiio.tag_type != CTL_TAG_UNTAGGED) 11007 && (ooa_io->scsiio.tag_type != CTL_TAG_UNTAGGED) 11008 && (pending_io->scsiio.tag_num == ooa_io->scsiio.tag_num) 11009 && ((pending_io->io_hdr.nexus.targ_port == 11010 ooa_io->io_hdr.nexus.targ_port) 11011 && (pending_io->io_hdr.nexus.initid == 11012 ooa_io->io_hdr.nexus.initid)) 11013 && ((ooa_io->io_hdr.flags & (CTL_FLAG_ABORT | 11014 CTL_FLAG_STATUS_SENT)) == 0)) 11015 return (CTL_ACTION_OVERLAP_TAG); 11016 11017 /* 11018 * If we get a head of queue tag, SAM-3 says that we should 11019 * immediately execute it. 11020 * 11021 * What happens if this command would normally block for some other 11022 * reason? e.g. a request sense with a head of queue tag 11023 * immediately after a write. Normally that would block, but this 11024 * will result in its getting executed immediately... 11025 * 11026 * We currently return "pass" instead of "skip", so we'll end up 11027 * going through the rest of the queue to check for overlapped tags. 11028 * 11029 * XXX KDM check for other types of blockage first?? 11030 */ 11031 if (pending_io->scsiio.tag_type == CTL_TAG_HEAD_OF_QUEUE) 11032 return (CTL_ACTION_PASS); 11033 11034 /* 11035 * Ordered tags have to block until all items ahead of them 11036 * have completed. If we get called with an ordered tag, we always 11037 * block, if something else is ahead of us in the queue. 11038 */ 11039 if (pending_io->scsiio.tag_type == CTL_TAG_ORDERED) 11040 return (CTL_ACTION_BLOCK); 11041 11042 /* 11043 * Simple tags get blocked until all head of queue and ordered tags 11044 * ahead of them have completed. I'm lumping untagged commands in 11045 * with simple tags here. XXX KDM is that the right thing to do? 11046 */ 11047 if (((pending_io->scsiio.tag_type == CTL_TAG_UNTAGGED) 11048 || (pending_io->scsiio.tag_type == CTL_TAG_SIMPLE)) 11049 && ((ooa_io->scsiio.tag_type == CTL_TAG_HEAD_OF_QUEUE) 11050 || (ooa_io->scsiio.tag_type == CTL_TAG_ORDERED))) 11051 return (CTL_ACTION_BLOCK); 11052 11053 pending_entry = ctl_get_cmd_entry(&pending_io->scsiio, NULL); 11054 KASSERT(pending_entry->seridx < CTL_SERIDX_COUNT, 11055 ("%s: Invalid seridx %d for pending CDB %02x %02x @ %p", 11056 __func__, pending_entry->seridx, pending_io->scsiio.cdb[0], 11057 pending_io->scsiio.cdb[1], pending_io)); 11058 ooa_entry = ctl_get_cmd_entry(&ooa_io->scsiio, NULL); 11059 if (ooa_entry->seridx == CTL_SERIDX_INVLD) 11060 return (CTL_ACTION_PASS); /* Unsupported command in OOA queue */ 11061 KASSERT(ooa_entry->seridx < CTL_SERIDX_COUNT, 11062 ("%s: Invalid seridx %d for ooa CDB %02x %02x @ %p", 11063 __func__, ooa_entry->seridx, ooa_io->scsiio.cdb[0], 11064 ooa_io->scsiio.cdb[1], ooa_io)); 11065 11066 serialize_row = ctl_serialize_table[ooa_entry->seridx]; 11067 11068 switch (serialize_row[pending_entry->seridx]) { 11069 case CTL_SER_BLOCK: 11070 return (CTL_ACTION_BLOCK); 11071 case CTL_SER_EXTENT: 11072 return (ctl_extent_check(ooa_io, pending_io, 11073 (lun->be_lun && lun->be_lun->serseq == CTL_LUN_SERSEQ_ON))); 11074 case CTL_SER_EXTENTOPT: 11075 if ((lun->MODE_CTRL.queue_flags & SCP_QUEUE_ALG_MASK) != 11076 SCP_QUEUE_ALG_UNRESTRICTED) 11077 return (ctl_extent_check(ooa_io, pending_io, 11078 (lun->be_lun && 11079 lun->be_lun->serseq == CTL_LUN_SERSEQ_ON))); 11080 return (CTL_ACTION_PASS); 11081 case CTL_SER_EXTENTSEQ: 11082 if (lun->be_lun && lun->be_lun->serseq != CTL_LUN_SERSEQ_OFF) 11083 return (ctl_extent_check_seq(ooa_io, pending_io)); 11084 return (CTL_ACTION_PASS); 11085 case CTL_SER_PASS: 11086 return (CTL_ACTION_PASS); 11087 case CTL_SER_BLOCKOPT: 11088 if ((lun->MODE_CTRL.queue_flags & SCP_QUEUE_ALG_MASK) != 11089 SCP_QUEUE_ALG_UNRESTRICTED) 11090 return (CTL_ACTION_BLOCK); 11091 return (CTL_ACTION_PASS); 11092 case CTL_SER_SKIP: 11093 return (CTL_ACTION_SKIP); 11094 default: 11095 panic("%s: Invalid serialization value %d for %d => %d", 11096 __func__, serialize_row[pending_entry->seridx], 11097 pending_entry->seridx, ooa_entry->seridx); 11098 } 11099 11100 return (CTL_ACTION_ERROR); 11101} 11102 11103/* 11104 * Check for blockage or overlaps against the OOA (Order Of Arrival) queue. 11105 * Assumptions: 11106 * - pending_io is generally either incoming, or on the blocked queue 11107 * - starting I/O is the I/O we want to start the check with. 11108 */ 11109static ctl_action 11110ctl_check_ooa(struct ctl_lun *lun, union ctl_io *pending_io, 11111 union ctl_io *starting_io) 11112{ 11113 union ctl_io *ooa_io; 11114 ctl_action action; 11115 11116 mtx_assert(&lun->lun_lock, MA_OWNED); 11117 11118 /* 11119 * Run back along the OOA queue, starting with the current 11120 * blocked I/O and going through every I/O before it on the 11121 * queue. If starting_io is NULL, we'll just end up returning 11122 * CTL_ACTION_PASS. 11123 */ 11124 for (ooa_io = starting_io; ooa_io != NULL; 11125 ooa_io = (union ctl_io *)TAILQ_PREV(&ooa_io->io_hdr, ctl_ooaq, 11126 ooa_links)){ 11127 11128 /* 11129 * This routine just checks to see whether 11130 * cur_blocked is blocked by ooa_io, which is ahead 11131 * of it in the queue. It doesn't queue/dequeue 11132 * cur_blocked. 11133 */ 11134 action = ctl_check_for_blockage(lun, pending_io, ooa_io); 11135 switch (action) { 11136 case CTL_ACTION_BLOCK: 11137 case CTL_ACTION_OVERLAP: 11138 case CTL_ACTION_OVERLAP_TAG: 11139 case CTL_ACTION_SKIP: 11140 case CTL_ACTION_ERROR: 11141 return (action); 11142 break; /* NOTREACHED */ 11143 case CTL_ACTION_PASS: 11144 break; 11145 default: 11146 panic("%s: Invalid action %d\n", __func__, action); 11147 } 11148 } 11149 11150 return (CTL_ACTION_PASS); 11151} 11152 11153/* 11154 * Assumptions: 11155 * - An I/O has just completed, and has been removed from the per-LUN OOA 11156 * queue, so some items on the blocked queue may now be unblocked. 11157 */ 11158static int 11159ctl_check_blocked(struct ctl_lun *lun) 11160{ 11161 struct ctl_softc *softc = lun->ctl_softc; 11162 union ctl_io *cur_blocked, *next_blocked; 11163 11164 mtx_assert(&lun->lun_lock, MA_OWNED); 11165 11166 /* 11167 * Run forward from the head of the blocked queue, checking each 11168 * entry against the I/Os prior to it on the OOA queue to see if 11169 * there is still any blockage. 11170 * 11171 * We cannot use the TAILQ_FOREACH() macro, because it can't deal 11172 * with our removing a variable on it while it is traversing the 11173 * list. 11174 */ 11175 for (cur_blocked = (union ctl_io *)TAILQ_FIRST(&lun->blocked_queue); 11176 cur_blocked != NULL; cur_blocked = next_blocked) { 11177 union ctl_io *prev_ooa; 11178 ctl_action action; 11179 11180 next_blocked = (union ctl_io *)TAILQ_NEXT(&cur_blocked->io_hdr, 11181 blocked_links); 11182 11183 prev_ooa = (union ctl_io *)TAILQ_PREV(&cur_blocked->io_hdr, 11184 ctl_ooaq, ooa_links); 11185 11186 /* 11187 * If cur_blocked happens to be the first item in the OOA 11188 * queue now, prev_ooa will be NULL, and the action 11189 * returned will just be CTL_ACTION_PASS. 11190 */ 11191 action = ctl_check_ooa(lun, cur_blocked, prev_ooa); 11192 11193 switch (action) { 11194 case CTL_ACTION_BLOCK: 11195 /* Nothing to do here, still blocked */ 11196 break; 11197 case CTL_ACTION_OVERLAP: 11198 case CTL_ACTION_OVERLAP_TAG: 11199 /* 11200 * This shouldn't happen! In theory we've already 11201 * checked this command for overlap... 11202 */ 11203 break; 11204 case CTL_ACTION_PASS: 11205 case CTL_ACTION_SKIP: { 11206 const struct ctl_cmd_entry *entry; 11207 11208 /* 11209 * The skip case shouldn't happen, this transaction 11210 * should have never made it onto the blocked queue. 11211 */ 11212 /* 11213 * This I/O is no longer blocked, we can remove it 11214 * from the blocked queue. Since this is a TAILQ 11215 * (doubly linked list), we can do O(1) removals 11216 * from any place on the list. 11217 */ 11218 TAILQ_REMOVE(&lun->blocked_queue, &cur_blocked->io_hdr, 11219 blocked_links); 11220 cur_blocked->io_hdr.flags &= ~CTL_FLAG_BLOCKED; 11221 11222 if ((softc->ha_mode != CTL_HA_MODE_XFER) && 11223 (cur_blocked->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)){ 11224 /* 11225 * Need to send IO back to original side to 11226 * run 11227 */ 11228 union ctl_ha_msg msg_info; 11229 11230 cur_blocked->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 11231 msg_info.hdr.original_sc = 11232 cur_blocked->io_hdr.original_sc; 11233 msg_info.hdr.serializing_sc = cur_blocked; 11234 msg_info.hdr.msg_type = CTL_MSG_R2R; 11235 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 11236 sizeof(msg_info.hdr), M_NOWAIT); 11237 break; 11238 } 11239 entry = ctl_get_cmd_entry(&cur_blocked->scsiio, NULL); 11240 11241 /* 11242 * Check this I/O for LUN state changes that may 11243 * have happened while this command was blocked. 11244 * The LUN state may have been changed by a command 11245 * ahead of us in the queue, so we need to re-check 11246 * for any states that can be caused by SCSI 11247 * commands. 11248 */ 11249 if (ctl_scsiio_lun_check(lun, entry, 11250 &cur_blocked->scsiio) == 0) { 11251 cur_blocked->io_hdr.flags |= 11252 CTL_FLAG_IS_WAS_ON_RTR; 11253 ctl_enqueue_rtr(cur_blocked); 11254 } else 11255 ctl_done(cur_blocked); 11256 break; 11257 } 11258 default: 11259 /* 11260 * This probably shouldn't happen -- we shouldn't 11261 * get CTL_ACTION_ERROR, or anything else. 11262 */ 11263 break; 11264 } 11265 } 11266 11267 return (CTL_RETVAL_COMPLETE); 11268} 11269 11270/* 11271 * This routine (with one exception) checks LUN flags that can be set by 11272 * commands ahead of us in the OOA queue. These flags have to be checked 11273 * when a command initially comes in, and when we pull a command off the 11274 * blocked queue and are preparing to execute it. The reason we have to 11275 * check these flags for commands on the blocked queue is that the LUN 11276 * state may have been changed by a command ahead of us while we're on the 11277 * blocked queue. 11278 * 11279 * Ordering is somewhat important with these checks, so please pay 11280 * careful attention to the placement of any new checks. 11281 */ 11282static int 11283ctl_scsiio_lun_check(struct ctl_lun *lun, 11284 const struct ctl_cmd_entry *entry, struct ctl_scsiio *ctsio) 11285{ 11286 struct ctl_softc *softc = lun->ctl_softc; 11287 int retval; 11288 uint32_t residx; 11289 11290 retval = 0; 11291 11292 mtx_assert(&lun->lun_lock, MA_OWNED); 11293 11294 /* 11295 * If this shelf is a secondary shelf controller, we may have to 11296 * reject some commands disallowed by HA mode and link state. 11297 */ 11298 if ((lun->flags & CTL_LUN_PRIMARY_SC) == 0) { 11299 if (softc->ha_link == CTL_HA_LINK_OFFLINE && 11300 (entry->flags & CTL_CMD_FLAG_OK_ON_UNAVAIL) == 0) { 11301 ctl_set_lun_unavail(ctsio); 11302 retval = 1; 11303 goto bailout; 11304 } 11305 if ((lun->flags & CTL_LUN_PEER_SC_PRIMARY) == 0 && 11306 (entry->flags & CTL_CMD_FLAG_OK_ON_UNAVAIL) == 0) { 11307 ctl_set_lun_transit(ctsio); 11308 retval = 1; 11309 goto bailout; 11310 } 11311 if (softc->ha_mode == CTL_HA_MODE_ACT_STBY && 11312 (entry->flags & CTL_CMD_FLAG_OK_ON_STANDBY) == 0) { 11313 ctl_set_lun_standby(ctsio); 11314 retval = 1; 11315 goto bailout; 11316 } 11317 11318 /* The rest of checks are only done on executing side */ 11319 if (softc->ha_mode == CTL_HA_MODE_XFER) 11320 goto bailout; 11321 } 11322 11323 if (entry->pattern & CTL_LUN_PAT_WRITE) { 11324 if (lun->be_lun && 11325 lun->be_lun->flags & CTL_LUN_FLAG_READONLY) { 11326 ctl_set_hw_write_protected(ctsio); 11327 retval = 1; 11328 goto bailout; 11329 } 11330 if ((lun->MODE_CTRL.eca_and_aen & SCP_SWP) != 0) { 11331 ctl_set_sense(ctsio, /*current_error*/ 1, 11332 /*sense_key*/ SSD_KEY_DATA_PROTECT, 11333 /*asc*/ 0x27, /*ascq*/ 0x02, SSD_ELEM_NONE); 11334 retval = 1; 11335 goto bailout; 11336 } 11337 } 11338 11339 /* 11340 * Check for a reservation conflict. If this command isn't allowed 11341 * even on reserved LUNs, and if this initiator isn't the one who 11342 * reserved us, reject the command with a reservation conflict. 11343 */ 11344 residx = ctl_get_initindex(&ctsio->io_hdr.nexus); 11345 if ((lun->flags & CTL_LUN_RESERVED) 11346 && ((entry->flags & CTL_CMD_FLAG_ALLOW_ON_RESV) == 0)) { 11347 if (lun->res_idx != residx) { 11348 ctl_set_reservation_conflict(ctsio); 11349 retval = 1; 11350 goto bailout; 11351 } 11352 } 11353 11354 if ((lun->flags & CTL_LUN_PR_RESERVED) == 0 || 11355 (entry->flags & CTL_CMD_FLAG_ALLOW_ON_PR_RESV)) { 11356 /* No reservation or command is allowed. */; 11357 } else if ((entry->flags & CTL_CMD_FLAG_ALLOW_ON_PR_WRESV) && 11358 (lun->pr_res_type == SPR_TYPE_WR_EX || 11359 lun->pr_res_type == SPR_TYPE_WR_EX_RO || 11360 lun->pr_res_type == SPR_TYPE_WR_EX_AR)) { 11361 /* The command is allowed for Write Exclusive resv. */; 11362 } else { 11363 /* 11364 * if we aren't registered or it's a res holder type 11365 * reservation and this isn't the res holder then set a 11366 * conflict. 11367 */ 11368 if (ctl_get_prkey(lun, residx) == 0 || 11369 (residx != lun->pr_res_idx && lun->pr_res_type < 4)) { 11370 ctl_set_reservation_conflict(ctsio); 11371 retval = 1; 11372 goto bailout; 11373 } 11374 } 11375 11376 if ((entry->flags & CTL_CMD_FLAG_OK_ON_NO_MEDIA) == 0) { 11377 if (lun->flags & CTL_LUN_EJECTED) 11378 ctl_set_lun_ejected(ctsio); 11379 else if (lun->flags & CTL_LUN_NO_MEDIA) { 11380 if (lun->flags & CTL_LUN_REMOVABLE) 11381 ctl_set_lun_no_media(ctsio); 11382 else 11383 ctl_set_lun_int_reqd(ctsio); 11384 } else if (lun->flags & CTL_LUN_STOPPED) 11385 ctl_set_lun_stopped(ctsio); 11386 else 11387 goto bailout; 11388 retval = 1; 11389 goto bailout; 11390 } 11391 11392bailout: 11393 return (retval); 11394} 11395 11396static void 11397ctl_failover_io(union ctl_io *io, int have_lock) 11398{ 11399 ctl_set_busy(&io->scsiio); 11400 ctl_done(io); 11401} 11402 11403static void 11404ctl_failover_lun(union ctl_io *rio) 11405{ 11406 struct ctl_softc *softc = control_softc; 11407 struct ctl_lun *lun; 11408 struct ctl_io_hdr *io, *next_io; 11409 uint32_t targ_lun; 11410 11411 targ_lun = rio->io_hdr.nexus.targ_mapped_lun; 11412 CTL_DEBUG_PRINT(("FAILOVER for lun %ju\n", targ_lun)); 11413 11414 /* Find and lock the LUN. */ 11415 mtx_lock(&softc->ctl_lock); 11416 if ((targ_lun < CTL_MAX_LUNS) && 11417 ((lun = softc->ctl_luns[targ_lun]) != NULL)) { 11418 mtx_lock(&lun->lun_lock); 11419 mtx_unlock(&softc->ctl_lock); 11420 if (lun->flags & CTL_LUN_DISABLED) { 11421 mtx_unlock(&lun->lun_lock); 11422 return; 11423 } 11424 } else { 11425 mtx_unlock(&softc->ctl_lock); 11426 return; 11427 } 11428 11429 if (softc->ha_mode == CTL_HA_MODE_XFER) { 11430 TAILQ_FOREACH_SAFE(io, &lun->ooa_queue, ooa_links, next_io) { 11431 /* We are master */ 11432 if (io->flags & CTL_FLAG_FROM_OTHER_SC) { 11433 if (io->flags & CTL_FLAG_IO_ACTIVE) { 11434 io->flags |= CTL_FLAG_ABORT; 11435 io->flags |= CTL_FLAG_FAILOVER; 11436 } else { /* This can be only due to DATAMOVE */ 11437 io->msg_type = CTL_MSG_DATAMOVE_DONE; 11438 io->flags &= ~CTL_FLAG_DMA_INPROG; 11439 io->flags |= CTL_FLAG_IO_ACTIVE; 11440 io->port_status = 31340; 11441 ctl_enqueue_isc((union ctl_io *)io); 11442 } 11443 } 11444 /* We are slave */ 11445 if (io->flags & CTL_FLAG_SENT_2OTHER_SC) { 11446 io->flags &= ~CTL_FLAG_SENT_2OTHER_SC; 11447 if (io->flags & CTL_FLAG_IO_ACTIVE) { 11448 io->flags |= CTL_FLAG_FAILOVER; 11449 } else { 11450 ctl_set_busy(&((union ctl_io *)io)-> 11451 scsiio); 11452 ctl_done((union ctl_io *)io); 11453 } 11454 } 11455 } 11456 } else { /* SERIALIZE modes */ 11457 TAILQ_FOREACH_SAFE(io, &lun->blocked_queue, blocked_links, 11458 next_io) { 11459 /* We are master */ 11460 if (io->flags & CTL_FLAG_FROM_OTHER_SC) { 11461 TAILQ_REMOVE(&lun->blocked_queue, io, 11462 blocked_links); 11463 io->flags &= ~CTL_FLAG_BLOCKED; 11464 TAILQ_REMOVE(&lun->ooa_queue, io, ooa_links); 11465 ctl_free_io((union ctl_io *)io); 11466 } 11467 } 11468 TAILQ_FOREACH_SAFE(io, &lun->ooa_queue, ooa_links, next_io) { 11469 /* We are master */ 11470 if (io->flags & CTL_FLAG_FROM_OTHER_SC) { 11471 TAILQ_REMOVE(&lun->ooa_queue, io, ooa_links); 11472 ctl_free_io((union ctl_io *)io); 11473 } 11474 /* We are slave */ 11475 if (io->flags & CTL_FLAG_SENT_2OTHER_SC) { 11476 io->flags &= ~CTL_FLAG_SENT_2OTHER_SC; 11477 if (!(io->flags & CTL_FLAG_IO_ACTIVE)) { 11478 ctl_set_busy(&((union ctl_io *)io)-> 11479 scsiio); 11480 ctl_done((union ctl_io *)io); 11481 } 11482 } 11483 } 11484 ctl_check_blocked(lun); 11485 } 11486 mtx_unlock(&lun->lun_lock); 11487} 11488 11489static int 11490ctl_scsiio_precheck(struct ctl_softc *softc, struct ctl_scsiio *ctsio) 11491{ 11492 struct ctl_lun *lun; 11493 const struct ctl_cmd_entry *entry; 11494 uint32_t initidx, targ_lun; 11495 int retval; 11496 11497 retval = 0; 11498 11499 lun = NULL; 11500 11501 targ_lun = ctsio->io_hdr.nexus.targ_mapped_lun; 11502 if ((targ_lun < CTL_MAX_LUNS) 11503 && ((lun = softc->ctl_luns[targ_lun]) != NULL)) { 11504 /* 11505 * If the LUN is invalid, pretend that it doesn't exist. 11506 * It will go away as soon as all pending I/O has been 11507 * completed. 11508 */ 11509 mtx_lock(&lun->lun_lock); 11510 if (lun->flags & CTL_LUN_DISABLED) { 11511 mtx_unlock(&lun->lun_lock); 11512 lun = NULL; 11513 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr = NULL; 11514 ctsio->io_hdr.ctl_private[CTL_PRIV_BACKEND_LUN].ptr = NULL; 11515 } else { 11516 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr = lun; 11517 ctsio->io_hdr.ctl_private[CTL_PRIV_BACKEND_LUN].ptr = 11518 lun->be_lun; 11519 11520 /* 11521 * Every I/O goes into the OOA queue for a 11522 * particular LUN, and stays there until completion. 11523 */ 11524#ifdef CTL_TIME_IO 11525 if (TAILQ_EMPTY(&lun->ooa_queue)) { 11526 lun->idle_time += getsbinuptime() - 11527 lun->last_busy; 11528 } 11529#endif 11530 TAILQ_INSERT_TAIL(&lun->ooa_queue, &ctsio->io_hdr, 11531 ooa_links); 11532 } 11533 } else { 11534 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr = NULL; 11535 ctsio->io_hdr.ctl_private[CTL_PRIV_BACKEND_LUN].ptr = NULL; 11536 } 11537 11538 /* Get command entry and return error if it is unsuppotyed. */ 11539 entry = ctl_validate_command(ctsio); 11540 if (entry == NULL) { 11541 if (lun) 11542 mtx_unlock(&lun->lun_lock); 11543 return (retval); 11544 } 11545 11546 ctsio->io_hdr.flags &= ~CTL_FLAG_DATA_MASK; 11547 ctsio->io_hdr.flags |= entry->flags & CTL_FLAG_DATA_MASK; 11548 11549 /* 11550 * Check to see whether we can send this command to LUNs that don't 11551 * exist. This should pretty much only be the case for inquiry 11552 * and request sense. Further checks, below, really require having 11553 * a LUN, so we can't really check the command anymore. Just put 11554 * it on the rtr queue. 11555 */ 11556 if (lun == NULL) { 11557 if (entry->flags & CTL_CMD_FLAG_OK_ON_NO_LUN) { 11558 ctsio->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 11559 ctl_enqueue_rtr((union ctl_io *)ctsio); 11560 return (retval); 11561 } 11562 11563 ctl_set_unsupported_lun(ctsio); 11564 ctl_done((union ctl_io *)ctsio); 11565 CTL_DEBUG_PRINT(("ctl_scsiio_precheck: bailing out due to invalid LUN\n")); 11566 return (retval); 11567 } else { 11568 /* 11569 * Make sure we support this particular command on this LUN. 11570 * e.g., we don't support writes to the control LUN. 11571 */ 11572 if (!ctl_cmd_applicable(lun->be_lun->lun_type, entry)) { 11573 mtx_unlock(&lun->lun_lock); 11574 ctl_set_invalid_opcode(ctsio); 11575 ctl_done((union ctl_io *)ctsio); 11576 return (retval); 11577 } 11578 } 11579 11580 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 11581 11582#ifdef CTL_WITH_CA 11583 /* 11584 * If we've got a request sense, it'll clear the contingent 11585 * allegiance condition. Otherwise, if we have a CA condition for 11586 * this initiator, clear it, because it sent down a command other 11587 * than request sense. 11588 */ 11589 if ((ctsio->cdb[0] != REQUEST_SENSE) 11590 && (ctl_is_set(lun->have_ca, initidx))) 11591 ctl_clear_mask(lun->have_ca, initidx); 11592#endif 11593 11594 /* 11595 * If the command has this flag set, it handles its own unit 11596 * attention reporting, we shouldn't do anything. Otherwise we 11597 * check for any pending unit attentions, and send them back to the 11598 * initiator. We only do this when a command initially comes in, 11599 * not when we pull it off the blocked queue. 11600 * 11601 * According to SAM-3, section 5.3.2, the order that things get 11602 * presented back to the host is basically unit attentions caused 11603 * by some sort of reset event, busy status, reservation conflicts 11604 * or task set full, and finally any other status. 11605 * 11606 * One issue here is that some of the unit attentions we report 11607 * don't fall into the "reset" category (e.g. "reported luns data 11608 * has changed"). So reporting it here, before the reservation 11609 * check, may be technically wrong. I guess the only thing to do 11610 * would be to check for and report the reset events here, and then 11611 * check for the other unit attention types after we check for a 11612 * reservation conflict. 11613 * 11614 * XXX KDM need to fix this 11615 */ 11616 if ((entry->flags & CTL_CMD_FLAG_NO_SENSE) == 0) { 11617 ctl_ua_type ua_type; 11618 11619 ua_type = ctl_build_ua(lun, initidx, &ctsio->sense_data, 11620 SSD_TYPE_NONE); 11621 if (ua_type != CTL_UA_NONE) { 11622 mtx_unlock(&lun->lun_lock); 11623 ctsio->scsi_status = SCSI_STATUS_CHECK_COND; 11624 ctsio->io_hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 11625 ctsio->sense_len = SSD_FULL_SIZE; 11626 ctl_done((union ctl_io *)ctsio); 11627 return (retval); 11628 } 11629 } 11630 11631 11632 if (ctl_scsiio_lun_check(lun, entry, ctsio) != 0) { 11633 mtx_unlock(&lun->lun_lock); 11634 ctl_done((union ctl_io *)ctsio); 11635 return (retval); 11636 } 11637 11638 /* 11639 * XXX CHD this is where we want to send IO to other side if 11640 * this LUN is secondary on this SC. We will need to make a copy 11641 * of the IO and flag the IO on this side as SENT_2OTHER and the flag 11642 * the copy we send as FROM_OTHER. 11643 * We also need to stuff the address of the original IO so we can 11644 * find it easily. Something similar will need be done on the other 11645 * side so when we are done we can find the copy. 11646 */ 11647 if ((lun->flags & CTL_LUN_PRIMARY_SC) == 0 && 11648 (lun->flags & CTL_LUN_PEER_SC_PRIMARY) != 0 && 11649 (entry->flags & CTL_CMD_FLAG_RUN_HERE) == 0) { 11650 union ctl_ha_msg msg_info; 11651 int isc_retval; 11652 11653 ctsio->io_hdr.flags |= CTL_FLAG_SENT_2OTHER_SC; 11654 ctsio->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 11655 mtx_unlock(&lun->lun_lock); 11656 11657 msg_info.hdr.msg_type = CTL_MSG_SERIALIZE; 11658 msg_info.hdr.original_sc = (union ctl_io *)ctsio; 11659 msg_info.hdr.serializing_sc = NULL; 11660 msg_info.hdr.nexus = ctsio->io_hdr.nexus; 11661 msg_info.scsi.tag_num = ctsio->tag_num; 11662 msg_info.scsi.tag_type = ctsio->tag_type; 11663 msg_info.scsi.cdb_len = ctsio->cdb_len; 11664 memcpy(msg_info.scsi.cdb, ctsio->cdb, CTL_MAX_CDBLEN); 11665 11666 if ((isc_retval = ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 11667 sizeof(msg_info.scsi) - sizeof(msg_info.scsi.sense_data), 11668 M_WAITOK)) > CTL_HA_STATUS_SUCCESS) { 11669 ctl_set_busy(ctsio); 11670 ctl_done((union ctl_io *)ctsio); 11671 return (retval); 11672 } 11673 return (retval); 11674 } 11675 11676 switch (ctl_check_ooa(lun, (union ctl_io *)ctsio, 11677 (union ctl_io *)TAILQ_PREV(&ctsio->io_hdr, 11678 ctl_ooaq, ooa_links))) { 11679 case CTL_ACTION_BLOCK: 11680 ctsio->io_hdr.flags |= CTL_FLAG_BLOCKED; 11681 TAILQ_INSERT_TAIL(&lun->blocked_queue, &ctsio->io_hdr, 11682 blocked_links); 11683 mtx_unlock(&lun->lun_lock); 11684 return (retval); 11685 case CTL_ACTION_PASS: 11686 case CTL_ACTION_SKIP: 11687 ctsio->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 11688 mtx_unlock(&lun->lun_lock); 11689 ctl_enqueue_rtr((union ctl_io *)ctsio); 11690 break; 11691 case CTL_ACTION_OVERLAP: 11692 mtx_unlock(&lun->lun_lock); 11693 ctl_set_overlapped_cmd(ctsio); 11694 ctl_done((union ctl_io *)ctsio); 11695 break; 11696 case CTL_ACTION_OVERLAP_TAG: 11697 mtx_unlock(&lun->lun_lock); 11698 ctl_set_overlapped_tag(ctsio, ctsio->tag_num & 0xff); 11699 ctl_done((union ctl_io *)ctsio); 11700 break; 11701 case CTL_ACTION_ERROR: 11702 default: 11703 mtx_unlock(&lun->lun_lock); 11704 ctl_set_internal_failure(ctsio, 11705 /*sks_valid*/ 0, 11706 /*retry_count*/ 0); 11707 ctl_done((union ctl_io *)ctsio); 11708 break; 11709 } 11710 return (retval); 11711} 11712 11713const struct ctl_cmd_entry * 11714ctl_get_cmd_entry(struct ctl_scsiio *ctsio, int *sa) 11715{ 11716 const struct ctl_cmd_entry *entry; 11717 int service_action; 11718 11719 entry = &ctl_cmd_table[ctsio->cdb[0]]; 11720 if (sa) 11721 *sa = ((entry->flags & CTL_CMD_FLAG_SA5) != 0); 11722 if (entry->flags & CTL_CMD_FLAG_SA5) { 11723 service_action = ctsio->cdb[1] & SERVICE_ACTION_MASK; 11724 entry = &((const struct ctl_cmd_entry *) 11725 entry->execute)[service_action]; 11726 } 11727 return (entry); 11728} 11729 11730const struct ctl_cmd_entry * 11731ctl_validate_command(struct ctl_scsiio *ctsio) 11732{ 11733 const struct ctl_cmd_entry *entry; 11734 int i, sa; 11735 uint8_t diff; 11736 11737 entry = ctl_get_cmd_entry(ctsio, &sa); 11738 if (entry->execute == NULL) { 11739 if (sa) 11740 ctl_set_invalid_field(ctsio, 11741 /*sks_valid*/ 1, 11742 /*command*/ 1, 11743 /*field*/ 1, 11744 /*bit_valid*/ 1, 11745 /*bit*/ 4); 11746 else 11747 ctl_set_invalid_opcode(ctsio); 11748 ctl_done((union ctl_io *)ctsio); 11749 return (NULL); 11750 } 11751 KASSERT(entry->length > 0, 11752 ("Not defined length for command 0x%02x/0x%02x", 11753 ctsio->cdb[0], ctsio->cdb[1])); 11754 for (i = 1; i < entry->length; i++) { 11755 diff = ctsio->cdb[i] & ~entry->usage[i - 1]; 11756 if (diff == 0) 11757 continue; 11758 ctl_set_invalid_field(ctsio, 11759 /*sks_valid*/ 1, 11760 /*command*/ 1, 11761 /*field*/ i, 11762 /*bit_valid*/ 1, 11763 /*bit*/ fls(diff) - 1); 11764 ctl_done((union ctl_io *)ctsio); 11765 return (NULL); 11766 } 11767 return (entry); 11768} 11769 11770static int 11771ctl_cmd_applicable(uint8_t lun_type, const struct ctl_cmd_entry *entry) 11772{ 11773 11774 switch (lun_type) { 11775 case T_DIRECT: 11776 if ((entry->flags & CTL_CMD_FLAG_OK_ON_DIRECT) == 0) 11777 return (0); 11778 break; 11779 case T_PROCESSOR: 11780 if ((entry->flags & CTL_CMD_FLAG_OK_ON_PROC) == 0) 11781 return (0); 11782 break; 11783 case T_CDROM: 11784 if ((entry->flags & CTL_CMD_FLAG_OK_ON_CDROM) == 0) 11785 return (0); 11786 break; 11787 default: 11788 return (0); 11789 } 11790 return (1); 11791} 11792 11793static int 11794ctl_scsiio(struct ctl_scsiio *ctsio) 11795{ 11796 int retval; 11797 const struct ctl_cmd_entry *entry; 11798 11799 retval = CTL_RETVAL_COMPLETE; 11800 11801 CTL_DEBUG_PRINT(("ctl_scsiio cdb[0]=%02X\n", ctsio->cdb[0])); 11802 11803 entry = ctl_get_cmd_entry(ctsio, NULL); 11804 11805 /* 11806 * If this I/O has been aborted, just send it straight to 11807 * ctl_done() without executing it. 11808 */ 11809 if (ctsio->io_hdr.flags & CTL_FLAG_ABORT) { 11810 ctl_done((union ctl_io *)ctsio); 11811 goto bailout; 11812 } 11813 11814 /* 11815 * All the checks should have been handled by ctl_scsiio_precheck(). 11816 * We should be clear now to just execute the I/O. 11817 */ 11818 retval = entry->execute(ctsio); 11819 11820bailout: 11821 return (retval); 11822} 11823 11824/* 11825 * Since we only implement one target right now, a bus reset simply resets 11826 * our single target. 11827 */ 11828static int 11829ctl_bus_reset(struct ctl_softc *softc, union ctl_io *io) 11830{ 11831 return(ctl_target_reset(softc, io, CTL_UA_BUS_RESET)); 11832} 11833 11834static int 11835ctl_target_reset(struct ctl_softc *softc, union ctl_io *io, 11836 ctl_ua_type ua_type) 11837{ 11838 struct ctl_port *port; 11839 struct ctl_lun *lun; 11840 int retval; 11841 11842 if (!(io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)) { 11843 union ctl_ha_msg msg_info; 11844 11845 msg_info.hdr.nexus = io->io_hdr.nexus; 11846 if (ua_type==CTL_UA_TARG_RESET) 11847 msg_info.task.task_action = CTL_TASK_TARGET_RESET; 11848 else 11849 msg_info.task.task_action = CTL_TASK_BUS_RESET; 11850 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 11851 msg_info.hdr.original_sc = NULL; 11852 msg_info.hdr.serializing_sc = NULL; 11853 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 11854 sizeof(msg_info.task), M_WAITOK); 11855 } 11856 retval = 0; 11857 11858 mtx_lock(&softc->ctl_lock); 11859 port = ctl_io_port(&io->io_hdr); 11860 STAILQ_FOREACH(lun, &softc->lun_list, links) { 11861 if (port != NULL && 11862 ctl_lun_map_to_port(port, lun->lun) >= CTL_MAX_LUNS) 11863 continue; 11864 retval += ctl_do_lun_reset(lun, io, ua_type); 11865 } 11866 mtx_unlock(&softc->ctl_lock); 11867 io->taskio.task_status = CTL_TASK_FUNCTION_COMPLETE; 11868 return (retval); 11869} 11870 11871/* 11872 * The LUN should always be set. The I/O is optional, and is used to 11873 * distinguish between I/Os sent by this initiator, and by other 11874 * initiators. We set unit attention for initiators other than this one. 11875 * SAM-3 is vague on this point. It does say that a unit attention should 11876 * be established for other initiators when a LUN is reset (see section 11877 * 5.7.3), but it doesn't specifically say that the unit attention should 11878 * be established for this particular initiator when a LUN is reset. Here 11879 * is the relevant text, from SAM-3 rev 8: 11880 * 11881 * 5.7.2 When a SCSI initiator port aborts its own tasks 11882 * 11883 * When a SCSI initiator port causes its own task(s) to be aborted, no 11884 * notification that the task(s) have been aborted shall be returned to 11885 * the SCSI initiator port other than the completion response for the 11886 * command or task management function action that caused the task(s) to 11887 * be aborted and notification(s) associated with related effects of the 11888 * action (e.g., a reset unit attention condition). 11889 * 11890 * XXX KDM for now, we're setting unit attention for all initiators. 11891 */ 11892static int 11893ctl_do_lun_reset(struct ctl_lun *lun, union ctl_io *io, ctl_ua_type ua_type) 11894{ 11895 union ctl_io *xio; 11896#if 0 11897 uint32_t initidx; 11898#endif 11899 int i; 11900 11901 mtx_lock(&lun->lun_lock); 11902 /* 11903 * Run through the OOA queue and abort each I/O. 11904 */ 11905 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 11906 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 11907 xio->io_hdr.flags |= CTL_FLAG_ABORT | CTL_FLAG_ABORT_STATUS; 11908 } 11909 11910 /* 11911 * This version sets unit attention for every 11912 */ 11913#if 0 11914 initidx = ctl_get_initindex(&io->io_hdr.nexus); 11915 ctl_est_ua_all(lun, initidx, ua_type); 11916#else 11917 ctl_est_ua_all(lun, -1, ua_type); 11918#endif 11919 11920 /* 11921 * A reset (any kind, really) clears reservations established with 11922 * RESERVE/RELEASE. It does not clear reservations established 11923 * with PERSISTENT RESERVE OUT, but we don't support that at the 11924 * moment anyway. See SPC-2, section 5.6. SPC-3 doesn't address 11925 * reservations made with the RESERVE/RELEASE commands, because 11926 * those commands are obsolete in SPC-3. 11927 */ 11928 lun->flags &= ~CTL_LUN_RESERVED; 11929 11930#ifdef CTL_WITH_CA 11931 for (i = 0; i < CTL_MAX_INITIATORS; i++) 11932 ctl_clear_mask(lun->have_ca, i); 11933#endif 11934 lun->prevent_count = 0; 11935 for (i = 0; i < CTL_MAX_INITIATORS; i++) 11936 ctl_clear_mask(lun->prevent, i); 11937 mtx_unlock(&lun->lun_lock); 11938 11939 return (0); 11940} 11941 11942static int 11943ctl_lun_reset(struct ctl_softc *softc, union ctl_io *io) 11944{ 11945 struct ctl_lun *lun; 11946 uint32_t targ_lun; 11947 int retval; 11948 11949 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 11950 mtx_lock(&softc->ctl_lock); 11951 if ((targ_lun >= CTL_MAX_LUNS) || 11952 (lun = softc->ctl_luns[targ_lun]) == NULL) { 11953 mtx_unlock(&softc->ctl_lock); 11954 io->taskio.task_status = CTL_TASK_LUN_DOES_NOT_EXIST; 11955 return (1); 11956 } 11957 retval = ctl_do_lun_reset(lun, io, CTL_UA_LUN_RESET); 11958 mtx_unlock(&softc->ctl_lock); 11959 io->taskio.task_status = CTL_TASK_FUNCTION_COMPLETE; 11960 11961 if ((io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) == 0) { 11962 union ctl_ha_msg msg_info; 11963 11964 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 11965 msg_info.hdr.nexus = io->io_hdr.nexus; 11966 msg_info.task.task_action = CTL_TASK_LUN_RESET; 11967 msg_info.hdr.original_sc = NULL; 11968 msg_info.hdr.serializing_sc = NULL; 11969 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 11970 sizeof(msg_info.task), M_WAITOK); 11971 } 11972 return (retval); 11973} 11974 11975static void 11976ctl_abort_tasks_lun(struct ctl_lun *lun, uint32_t targ_port, uint32_t init_id, 11977 int other_sc) 11978{ 11979 union ctl_io *xio; 11980 11981 mtx_assert(&lun->lun_lock, MA_OWNED); 11982 11983 /* 11984 * Run through the OOA queue and attempt to find the given I/O. 11985 * The target port, initiator ID, tag type and tag number have to 11986 * match the values that we got from the initiator. If we have an 11987 * untagged command to abort, simply abort the first untagged command 11988 * we come to. We only allow one untagged command at a time of course. 11989 */ 11990 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 11991 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 11992 11993 if ((targ_port == UINT32_MAX || 11994 targ_port == xio->io_hdr.nexus.targ_port) && 11995 (init_id == UINT32_MAX || 11996 init_id == xio->io_hdr.nexus.initid)) { 11997 if (targ_port != xio->io_hdr.nexus.targ_port || 11998 init_id != xio->io_hdr.nexus.initid) 11999 xio->io_hdr.flags |= CTL_FLAG_ABORT_STATUS; 12000 xio->io_hdr.flags |= CTL_FLAG_ABORT; 12001 if (!other_sc && !(lun->flags & CTL_LUN_PRIMARY_SC)) { 12002 union ctl_ha_msg msg_info; 12003 12004 msg_info.hdr.nexus = xio->io_hdr.nexus; 12005 msg_info.task.task_action = CTL_TASK_ABORT_TASK; 12006 msg_info.task.tag_num = xio->scsiio.tag_num; 12007 msg_info.task.tag_type = xio->scsiio.tag_type; 12008 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 12009 msg_info.hdr.original_sc = NULL; 12010 msg_info.hdr.serializing_sc = NULL; 12011 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 12012 sizeof(msg_info.task), M_NOWAIT); 12013 } 12014 } 12015 } 12016} 12017 12018static int 12019ctl_abort_task_set(union ctl_io *io) 12020{ 12021 struct ctl_softc *softc = control_softc; 12022 struct ctl_lun *lun; 12023 uint32_t targ_lun; 12024 12025 /* 12026 * Look up the LUN. 12027 */ 12028 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12029 mtx_lock(&softc->ctl_lock); 12030 if ((targ_lun >= CTL_MAX_LUNS) || 12031 (lun = softc->ctl_luns[targ_lun]) == NULL) { 12032 mtx_unlock(&softc->ctl_lock); 12033 io->taskio.task_status = CTL_TASK_LUN_DOES_NOT_EXIST; 12034 return (1); 12035 } 12036 12037 mtx_lock(&lun->lun_lock); 12038 mtx_unlock(&softc->ctl_lock); 12039 if (io->taskio.task_action == CTL_TASK_ABORT_TASK_SET) { 12040 ctl_abort_tasks_lun(lun, io->io_hdr.nexus.targ_port, 12041 io->io_hdr.nexus.initid, 12042 (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) != 0); 12043 } else { /* CTL_TASK_CLEAR_TASK_SET */ 12044 ctl_abort_tasks_lun(lun, UINT32_MAX, UINT32_MAX, 12045 (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) != 0); 12046 } 12047 mtx_unlock(&lun->lun_lock); 12048 io->taskio.task_status = CTL_TASK_FUNCTION_COMPLETE; 12049 return (0); 12050} 12051 12052static int 12053ctl_i_t_nexus_reset(union ctl_io *io) 12054{ 12055 struct ctl_softc *softc = control_softc; 12056 struct ctl_lun *lun; 12057 uint32_t initidx; 12058 12059 if (!(io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)) { 12060 union ctl_ha_msg msg_info; 12061 12062 msg_info.hdr.nexus = io->io_hdr.nexus; 12063 msg_info.task.task_action = CTL_TASK_I_T_NEXUS_RESET; 12064 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 12065 msg_info.hdr.original_sc = NULL; 12066 msg_info.hdr.serializing_sc = NULL; 12067 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 12068 sizeof(msg_info.task), M_WAITOK); 12069 } 12070 12071 initidx = ctl_get_initindex(&io->io_hdr.nexus); 12072 mtx_lock(&softc->ctl_lock); 12073 STAILQ_FOREACH(lun, &softc->lun_list, links) { 12074 mtx_lock(&lun->lun_lock); 12075 ctl_abort_tasks_lun(lun, io->io_hdr.nexus.targ_port, 12076 io->io_hdr.nexus.initid, 1); 12077#ifdef CTL_WITH_CA 12078 ctl_clear_mask(lun->have_ca, initidx); 12079#endif 12080 if ((lun->flags & CTL_LUN_RESERVED) && (lun->res_idx == initidx)) 12081 lun->flags &= ~CTL_LUN_RESERVED; 12082 if (ctl_is_set(lun->prevent, initidx)) { 12083 ctl_clear_mask(lun->prevent, initidx); 12084 lun->prevent_count--; 12085 } 12086 ctl_est_ua(lun, initidx, CTL_UA_I_T_NEXUS_LOSS); 12087 mtx_unlock(&lun->lun_lock); 12088 } 12089 mtx_unlock(&softc->ctl_lock); 12090 io->taskio.task_status = CTL_TASK_FUNCTION_COMPLETE; 12091 return (0); 12092} 12093 12094static int 12095ctl_abort_task(union ctl_io *io) 12096{ 12097 union ctl_io *xio; 12098 struct ctl_lun *lun; 12099 struct ctl_softc *softc; 12100#if 0 12101 struct sbuf sb; 12102 char printbuf[128]; 12103#endif 12104 int found; 12105 uint32_t targ_lun; 12106 12107 softc = control_softc; 12108 found = 0; 12109 12110 /* 12111 * Look up the LUN. 12112 */ 12113 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12114 mtx_lock(&softc->ctl_lock); 12115 if ((targ_lun >= CTL_MAX_LUNS) || 12116 (lun = softc->ctl_luns[targ_lun]) == NULL) { 12117 mtx_unlock(&softc->ctl_lock); 12118 io->taskio.task_status = CTL_TASK_LUN_DOES_NOT_EXIST; 12119 return (1); 12120 } 12121 12122#if 0 12123 printf("ctl_abort_task: called for lun %lld, tag %d type %d\n", 12124 lun->lun, io->taskio.tag_num, io->taskio.tag_type); 12125#endif 12126 12127 mtx_lock(&lun->lun_lock); 12128 mtx_unlock(&softc->ctl_lock); 12129 /* 12130 * Run through the OOA queue and attempt to find the given I/O. 12131 * The target port, initiator ID, tag type and tag number have to 12132 * match the values that we got from the initiator. If we have an 12133 * untagged command to abort, simply abort the first untagged command 12134 * we come to. We only allow one untagged command at a time of course. 12135 */ 12136 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 12137 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 12138#if 0 12139 sbuf_new(&sb, printbuf, sizeof(printbuf), SBUF_FIXEDLEN); 12140 12141 sbuf_printf(&sb, "LUN %lld tag %d type %d%s%s%s%s: ", 12142 lun->lun, xio->scsiio.tag_num, 12143 xio->scsiio.tag_type, 12144 (xio->io_hdr.blocked_links.tqe_prev 12145 == NULL) ? "" : " BLOCKED", 12146 (xio->io_hdr.flags & 12147 CTL_FLAG_DMA_INPROG) ? " DMA" : "", 12148 (xio->io_hdr.flags & 12149 CTL_FLAG_ABORT) ? " ABORT" : "", 12150 (xio->io_hdr.flags & 12151 CTL_FLAG_IS_WAS_ON_RTR ? " RTR" : "")); 12152 ctl_scsi_command_string(&xio->scsiio, NULL, &sb); 12153 sbuf_finish(&sb); 12154 printf("%s\n", sbuf_data(&sb)); 12155#endif 12156 12157 if ((xio->io_hdr.nexus.targ_port != io->io_hdr.nexus.targ_port) 12158 || (xio->io_hdr.nexus.initid != io->io_hdr.nexus.initid) 12159 || (xio->io_hdr.flags & CTL_FLAG_ABORT)) 12160 continue; 12161 12162 /* 12163 * If the abort says that the task is untagged, the 12164 * task in the queue must be untagged. Otherwise, 12165 * we just check to see whether the tag numbers 12166 * match. This is because the QLogic firmware 12167 * doesn't pass back the tag type in an abort 12168 * request. 12169 */ 12170#if 0 12171 if (((xio->scsiio.tag_type == CTL_TAG_UNTAGGED) 12172 && (io->taskio.tag_type == CTL_TAG_UNTAGGED)) 12173 || (xio->scsiio.tag_num == io->taskio.tag_num)) 12174#endif 12175 /* 12176 * XXX KDM we've got problems with FC, because it 12177 * doesn't send down a tag type with aborts. So we 12178 * can only really go by the tag number... 12179 * This may cause problems with parallel SCSI. 12180 * Need to figure that out!! 12181 */ 12182 if (xio->scsiio.tag_num == io->taskio.tag_num) { 12183 xio->io_hdr.flags |= CTL_FLAG_ABORT; 12184 found = 1; 12185 if ((io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) == 0 && 12186 !(lun->flags & CTL_LUN_PRIMARY_SC)) { 12187 union ctl_ha_msg msg_info; 12188 12189 msg_info.hdr.nexus = io->io_hdr.nexus; 12190 msg_info.task.task_action = CTL_TASK_ABORT_TASK; 12191 msg_info.task.tag_num = io->taskio.tag_num; 12192 msg_info.task.tag_type = io->taskio.tag_type; 12193 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 12194 msg_info.hdr.original_sc = NULL; 12195 msg_info.hdr.serializing_sc = NULL; 12196#if 0 12197 printf("Sent Abort to other side\n"); 12198#endif 12199 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 12200 sizeof(msg_info.task), M_NOWAIT); 12201 } 12202#if 0 12203 printf("ctl_abort_task: found I/O to abort\n"); 12204#endif 12205 } 12206 } 12207 mtx_unlock(&lun->lun_lock); 12208 12209 if (found == 0) { 12210 /* 12211 * This isn't really an error. It's entirely possible for 12212 * the abort and command completion to cross on the wire. 12213 * This is more of an informative/diagnostic error. 12214 */ 12215#if 0 12216 printf("ctl_abort_task: ABORT sent for nonexistent I/O: " 12217 "%u:%u:%u tag %d type %d\n", 12218 io->io_hdr.nexus.initid, 12219 io->io_hdr.nexus.targ_port, 12220 io->io_hdr.nexus.targ_lun, io->taskio.tag_num, 12221 io->taskio.tag_type); 12222#endif 12223 } 12224 io->taskio.task_status = CTL_TASK_FUNCTION_COMPLETE; 12225 return (0); 12226} 12227 12228static int 12229ctl_query_task(union ctl_io *io, int task_set) 12230{ 12231 union ctl_io *xio; 12232 struct ctl_lun *lun; 12233 struct ctl_softc *softc; 12234 int found = 0; 12235 uint32_t targ_lun; 12236 12237 softc = control_softc; 12238 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12239 mtx_lock(&softc->ctl_lock); 12240 if ((targ_lun >= CTL_MAX_LUNS) || 12241 (lun = softc->ctl_luns[targ_lun]) == NULL) { 12242 mtx_unlock(&softc->ctl_lock); 12243 io->taskio.task_status = CTL_TASK_LUN_DOES_NOT_EXIST; 12244 return (1); 12245 } 12246 mtx_lock(&lun->lun_lock); 12247 mtx_unlock(&softc->ctl_lock); 12248 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 12249 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 12250 12251 if ((xio->io_hdr.nexus.targ_port != io->io_hdr.nexus.targ_port) 12252 || (xio->io_hdr.nexus.initid != io->io_hdr.nexus.initid) 12253 || (xio->io_hdr.flags & CTL_FLAG_ABORT)) 12254 continue; 12255 12256 if (task_set || xio->scsiio.tag_num == io->taskio.tag_num) { 12257 found = 1; 12258 break; 12259 } 12260 } 12261 mtx_unlock(&lun->lun_lock); 12262 if (found) 12263 io->taskio.task_status = CTL_TASK_FUNCTION_SUCCEEDED; 12264 else 12265 io->taskio.task_status = CTL_TASK_FUNCTION_COMPLETE; 12266 return (0); 12267} 12268 12269static int 12270ctl_query_async_event(union ctl_io *io) 12271{ 12272 struct ctl_lun *lun; 12273 struct ctl_softc *softc; 12274 ctl_ua_type ua; 12275 uint32_t targ_lun, initidx; 12276 12277 softc = control_softc; 12278 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12279 mtx_lock(&softc->ctl_lock); 12280 if ((targ_lun >= CTL_MAX_LUNS) || 12281 (lun = softc->ctl_luns[targ_lun]) == NULL) { 12282 mtx_unlock(&softc->ctl_lock); 12283 io->taskio.task_status = CTL_TASK_LUN_DOES_NOT_EXIST; 12284 return (1); 12285 } 12286 mtx_lock(&lun->lun_lock); 12287 mtx_unlock(&softc->ctl_lock); 12288 initidx = ctl_get_initindex(&io->io_hdr.nexus); 12289 ua = ctl_build_qae(lun, initidx, io->taskio.task_resp); 12290 mtx_unlock(&lun->lun_lock); 12291 if (ua != CTL_UA_NONE) 12292 io->taskio.task_status = CTL_TASK_FUNCTION_SUCCEEDED; 12293 else 12294 io->taskio.task_status = CTL_TASK_FUNCTION_COMPLETE; 12295 return (0); 12296} 12297 12298static void 12299ctl_run_task(union ctl_io *io) 12300{ 12301 struct ctl_softc *softc = control_softc; 12302 int retval = 1; 12303 12304 CTL_DEBUG_PRINT(("ctl_run_task\n")); 12305 KASSERT(io->io_hdr.io_type == CTL_IO_TASK, 12306 ("ctl_run_task: Unextected io_type %d\n", io->io_hdr.io_type)); 12307 io->taskio.task_status = CTL_TASK_FUNCTION_NOT_SUPPORTED; 12308 bzero(io->taskio.task_resp, sizeof(io->taskio.task_resp)); 12309 switch (io->taskio.task_action) { 12310 case CTL_TASK_ABORT_TASK: 12311 retval = ctl_abort_task(io); 12312 break; 12313 case CTL_TASK_ABORT_TASK_SET: 12314 case CTL_TASK_CLEAR_TASK_SET: 12315 retval = ctl_abort_task_set(io); 12316 break; 12317 case CTL_TASK_CLEAR_ACA: 12318 break; 12319 case CTL_TASK_I_T_NEXUS_RESET: 12320 retval = ctl_i_t_nexus_reset(io); 12321 break; 12322 case CTL_TASK_LUN_RESET: 12323 retval = ctl_lun_reset(softc, io); 12324 break; 12325 case CTL_TASK_TARGET_RESET: 12326 retval = ctl_target_reset(softc, io, CTL_UA_TARG_RESET); 12327 break; 12328 case CTL_TASK_BUS_RESET: 12329 retval = ctl_bus_reset(softc, io); 12330 break; 12331 case CTL_TASK_PORT_LOGIN: 12332 break; 12333 case CTL_TASK_PORT_LOGOUT: 12334 break; 12335 case CTL_TASK_QUERY_TASK: 12336 retval = ctl_query_task(io, 0); 12337 break; 12338 case CTL_TASK_QUERY_TASK_SET: 12339 retval = ctl_query_task(io, 1); 12340 break; 12341 case CTL_TASK_QUERY_ASYNC_EVENT: 12342 retval = ctl_query_async_event(io); 12343 break; 12344 default: 12345 printf("%s: got unknown task management event %d\n", 12346 __func__, io->taskio.task_action); 12347 break; 12348 } 12349 if (retval == 0) 12350 io->io_hdr.status = CTL_SUCCESS; 12351 else 12352 io->io_hdr.status = CTL_ERROR; 12353 ctl_done(io); 12354} 12355 12356/* 12357 * For HA operation. Handle commands that come in from the other 12358 * controller. 12359 */ 12360static void 12361ctl_handle_isc(union ctl_io *io) 12362{ 12363 int free_io; 12364 struct ctl_lun *lun; 12365 struct ctl_softc *softc = control_softc; 12366 uint32_t targ_lun; 12367 12368 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12369 lun = softc->ctl_luns[targ_lun]; 12370 12371 switch (io->io_hdr.msg_type) { 12372 case CTL_MSG_SERIALIZE: 12373 free_io = ctl_serialize_other_sc_cmd(&io->scsiio); 12374 break; 12375 case CTL_MSG_R2R: { 12376 const struct ctl_cmd_entry *entry; 12377 12378 /* 12379 * This is only used in SER_ONLY mode. 12380 */ 12381 free_io = 0; 12382 entry = ctl_get_cmd_entry(&io->scsiio, NULL); 12383 mtx_lock(&lun->lun_lock); 12384 if (ctl_scsiio_lun_check(lun, 12385 entry, (struct ctl_scsiio *)io) != 0) { 12386 mtx_unlock(&lun->lun_lock); 12387 ctl_done(io); 12388 break; 12389 } 12390 io->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 12391 mtx_unlock(&lun->lun_lock); 12392 ctl_enqueue_rtr(io); 12393 break; 12394 } 12395 case CTL_MSG_FINISH_IO: 12396 if (softc->ha_mode == CTL_HA_MODE_XFER) { 12397 free_io = 0; 12398 ctl_done(io); 12399 } else { 12400 free_io = 1; 12401 mtx_lock(&lun->lun_lock); 12402 TAILQ_REMOVE(&lun->ooa_queue, &io->io_hdr, 12403 ooa_links); 12404 ctl_check_blocked(lun); 12405 mtx_unlock(&lun->lun_lock); 12406 } 12407 break; 12408 case CTL_MSG_PERS_ACTION: 12409 ctl_hndl_per_res_out_on_other_sc( 12410 (union ctl_ha_msg *)&io->presio.pr_msg); 12411 free_io = 1; 12412 break; 12413 case CTL_MSG_BAD_JUJU: 12414 free_io = 0; 12415 ctl_done(io); 12416 break; 12417 case CTL_MSG_DATAMOVE: 12418 /* Only used in XFER mode */ 12419 free_io = 0; 12420 ctl_datamove_remote(io); 12421 break; 12422 case CTL_MSG_DATAMOVE_DONE: 12423 /* Only used in XFER mode */ 12424 free_io = 0; 12425 io->scsiio.be_move_done(io); 12426 break; 12427 case CTL_MSG_FAILOVER: 12428 ctl_failover_lun(io); 12429 free_io = 1; 12430 break; 12431 default: 12432 free_io = 1; 12433 printf("%s: Invalid message type %d\n", 12434 __func__, io->io_hdr.msg_type); 12435 break; 12436 } 12437 if (free_io) 12438 ctl_free_io(io); 12439 12440} 12441 12442 12443/* 12444 * Returns the match type in the case of a match, or CTL_LUN_PAT_NONE if 12445 * there is no match. 12446 */ 12447static ctl_lun_error_pattern 12448ctl_cmd_pattern_match(struct ctl_scsiio *ctsio, struct ctl_error_desc *desc) 12449{ 12450 const struct ctl_cmd_entry *entry; 12451 ctl_lun_error_pattern filtered_pattern, pattern; 12452 12453 pattern = desc->error_pattern; 12454 12455 /* 12456 * XXX KDM we need more data passed into this function to match a 12457 * custom pattern, and we actually need to implement custom pattern 12458 * matching. 12459 */ 12460 if (pattern & CTL_LUN_PAT_CMD) 12461 return (CTL_LUN_PAT_CMD); 12462 12463 if ((pattern & CTL_LUN_PAT_MASK) == CTL_LUN_PAT_ANY) 12464 return (CTL_LUN_PAT_ANY); 12465 12466 entry = ctl_get_cmd_entry(ctsio, NULL); 12467 12468 filtered_pattern = entry->pattern & pattern; 12469 12470 /* 12471 * If the user requested specific flags in the pattern (e.g. 12472 * CTL_LUN_PAT_RANGE), make sure the command supports all of those 12473 * flags. 12474 * 12475 * If the user did not specify any flags, it doesn't matter whether 12476 * or not the command supports the flags. 12477 */ 12478 if ((filtered_pattern & ~CTL_LUN_PAT_MASK) != 12479 (pattern & ~CTL_LUN_PAT_MASK)) 12480 return (CTL_LUN_PAT_NONE); 12481 12482 /* 12483 * If the user asked for a range check, see if the requested LBA 12484 * range overlaps with this command's LBA range. 12485 */ 12486 if (filtered_pattern & CTL_LUN_PAT_RANGE) { 12487 uint64_t lba1; 12488 uint64_t len1; 12489 ctl_action action; 12490 int retval; 12491 12492 retval = ctl_get_lba_len((union ctl_io *)ctsio, &lba1, &len1); 12493 if (retval != 0) 12494 return (CTL_LUN_PAT_NONE); 12495 12496 action = ctl_extent_check_lba(lba1, len1, desc->lba_range.lba, 12497 desc->lba_range.len, FALSE); 12498 /* 12499 * A "pass" means that the LBA ranges don't overlap, so 12500 * this doesn't match the user's range criteria. 12501 */ 12502 if (action == CTL_ACTION_PASS) 12503 return (CTL_LUN_PAT_NONE); 12504 } 12505 12506 return (filtered_pattern); 12507} 12508 12509static void 12510ctl_inject_error(struct ctl_lun *lun, union ctl_io *io) 12511{ 12512 struct ctl_error_desc *desc, *desc2; 12513 12514 mtx_assert(&lun->lun_lock, MA_OWNED); 12515 12516 STAILQ_FOREACH_SAFE(desc, &lun->error_list, links, desc2) { 12517 ctl_lun_error_pattern pattern; 12518 /* 12519 * Check to see whether this particular command matches 12520 * the pattern in the descriptor. 12521 */ 12522 pattern = ctl_cmd_pattern_match(&io->scsiio, desc); 12523 if ((pattern & CTL_LUN_PAT_MASK) == CTL_LUN_PAT_NONE) 12524 continue; 12525 12526 switch (desc->lun_error & CTL_LUN_INJ_TYPE) { 12527 case CTL_LUN_INJ_ABORTED: 12528 ctl_set_aborted(&io->scsiio); 12529 break; 12530 case CTL_LUN_INJ_MEDIUM_ERR: 12531 ctl_set_medium_error(&io->scsiio, 12532 (io->io_hdr.flags & CTL_FLAG_DATA_MASK) != 12533 CTL_FLAG_DATA_OUT); 12534 break; 12535 case CTL_LUN_INJ_UA: 12536 /* 29h/00h POWER ON, RESET, OR BUS DEVICE RESET 12537 * OCCURRED */ 12538 ctl_set_ua(&io->scsiio, 0x29, 0x00); 12539 break; 12540 case CTL_LUN_INJ_CUSTOM: 12541 /* 12542 * We're assuming the user knows what he is doing. 12543 * Just copy the sense information without doing 12544 * checks. 12545 */ 12546 bcopy(&desc->custom_sense, &io->scsiio.sense_data, 12547 MIN(sizeof(desc->custom_sense), 12548 sizeof(io->scsiio.sense_data))); 12549 io->scsiio.scsi_status = SCSI_STATUS_CHECK_COND; 12550 io->scsiio.sense_len = SSD_FULL_SIZE; 12551 io->io_hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 12552 break; 12553 case CTL_LUN_INJ_NONE: 12554 default: 12555 /* 12556 * If this is an error injection type we don't know 12557 * about, clear the continuous flag (if it is set) 12558 * so it will get deleted below. 12559 */ 12560 desc->lun_error &= ~CTL_LUN_INJ_CONTINUOUS; 12561 break; 12562 } 12563 /* 12564 * By default, each error injection action is a one-shot 12565 */ 12566 if (desc->lun_error & CTL_LUN_INJ_CONTINUOUS) 12567 continue; 12568 12569 STAILQ_REMOVE(&lun->error_list, desc, ctl_error_desc, links); 12570 12571 free(desc, M_CTL); 12572 } 12573} 12574 12575#ifdef CTL_IO_DELAY 12576static void 12577ctl_datamove_timer_wakeup(void *arg) 12578{ 12579 union ctl_io *io; 12580 12581 io = (union ctl_io *)arg; 12582 12583 ctl_datamove(io); 12584} 12585#endif /* CTL_IO_DELAY */ 12586 12587void 12588ctl_datamove(union ctl_io *io) 12589{ 12590 struct ctl_lun *lun; 12591 void (*fe_datamove)(union ctl_io *io); 12592 12593 mtx_assert(&control_softc->ctl_lock, MA_NOTOWNED); 12594 12595 CTL_DEBUG_PRINT(("ctl_datamove\n")); 12596 12597 lun = (struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 12598#ifdef CTL_TIME_IO 12599 if ((time_uptime - io->io_hdr.start_time) > ctl_time_io_secs) { 12600 char str[256]; 12601 char path_str[64]; 12602 struct sbuf sb; 12603 12604 ctl_scsi_path_string(io, path_str, sizeof(path_str)); 12605 sbuf_new(&sb, str, sizeof(str), SBUF_FIXEDLEN); 12606 12607 sbuf_cat(&sb, path_str); 12608 switch (io->io_hdr.io_type) { 12609 case CTL_IO_SCSI: 12610 ctl_scsi_command_string(&io->scsiio, NULL, &sb); 12611 sbuf_printf(&sb, "\n"); 12612 sbuf_cat(&sb, path_str); 12613 sbuf_printf(&sb, "Tag: 0x%04x, type %d\n", 12614 io->scsiio.tag_num, io->scsiio.tag_type); 12615 break; 12616 case CTL_IO_TASK: 12617 sbuf_printf(&sb, "Task I/O type: %d, Tag: 0x%04x, " 12618 "Tag Type: %d\n", io->taskio.task_action, 12619 io->taskio.tag_num, io->taskio.tag_type); 12620 break; 12621 default: 12622 panic("%s: Invalid CTL I/O type %d\n", 12623 __func__, io->io_hdr.io_type); 12624 } 12625 sbuf_cat(&sb, path_str); 12626 sbuf_printf(&sb, "ctl_datamove: %jd seconds\n", 12627 (intmax_t)time_uptime - io->io_hdr.start_time); 12628 sbuf_finish(&sb); 12629 printf("%s", sbuf_data(&sb)); 12630 } 12631#endif /* CTL_TIME_IO */ 12632 12633#ifdef CTL_IO_DELAY 12634 if (io->io_hdr.flags & CTL_FLAG_DELAY_DONE) { 12635 io->io_hdr.flags &= ~CTL_FLAG_DELAY_DONE; 12636 } else { 12637 if ((lun != NULL) 12638 && (lun->delay_info.datamove_delay > 0)) { 12639 12640 callout_init(&io->io_hdr.delay_callout, /*mpsafe*/ 1); 12641 io->io_hdr.flags |= CTL_FLAG_DELAY_DONE; 12642 callout_reset(&io->io_hdr.delay_callout, 12643 lun->delay_info.datamove_delay * hz, 12644 ctl_datamove_timer_wakeup, io); 12645 if (lun->delay_info.datamove_type == 12646 CTL_DELAY_TYPE_ONESHOT) 12647 lun->delay_info.datamove_delay = 0; 12648 return; 12649 } 12650 } 12651#endif 12652 12653 /* 12654 * This command has been aborted. Set the port status, so we fail 12655 * the data move. 12656 */ 12657 if (io->io_hdr.flags & CTL_FLAG_ABORT) { 12658 printf("ctl_datamove: tag 0x%04x on (%u:%u:%u) aborted\n", 12659 io->scsiio.tag_num, io->io_hdr.nexus.initid, 12660 io->io_hdr.nexus.targ_port, 12661 io->io_hdr.nexus.targ_lun); 12662 io->io_hdr.port_status = 31337; 12663 /* 12664 * Note that the backend, in this case, will get the 12665 * callback in its context. In other cases it may get 12666 * called in the frontend's interrupt thread context. 12667 */ 12668 io->scsiio.be_move_done(io); 12669 return; 12670 } 12671 12672 /* Don't confuse frontend with zero length data move. */ 12673 if (io->scsiio.kern_data_len == 0) { 12674 io->scsiio.be_move_done(io); 12675 return; 12676 } 12677 12678 fe_datamove = ctl_io_port(&io->io_hdr)->fe_datamove; 12679 fe_datamove(io); 12680} 12681 12682static void 12683ctl_send_datamove_done(union ctl_io *io, int have_lock) 12684{ 12685 union ctl_ha_msg msg; 12686#ifdef CTL_TIME_IO 12687 struct bintime cur_bt; 12688#endif 12689 12690 memset(&msg, 0, sizeof(msg)); 12691 msg.hdr.msg_type = CTL_MSG_DATAMOVE_DONE; 12692 msg.hdr.original_sc = io; 12693 msg.hdr.serializing_sc = io->io_hdr.serializing_sc; 12694 msg.hdr.nexus = io->io_hdr.nexus; 12695 msg.hdr.status = io->io_hdr.status; 12696 msg.scsi.tag_num = io->scsiio.tag_num; 12697 msg.scsi.tag_type = io->scsiio.tag_type; 12698 msg.scsi.scsi_status = io->scsiio.scsi_status; 12699 memcpy(&msg.scsi.sense_data, &io->scsiio.sense_data, 12700 io->scsiio.sense_len); 12701 msg.scsi.sense_len = io->scsiio.sense_len; 12702 msg.scsi.sense_residual = io->scsiio.sense_residual; 12703 msg.scsi.fetd_status = io->io_hdr.port_status; 12704 msg.scsi.residual = io->scsiio.residual; 12705 io->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 12706 if (io->io_hdr.flags & CTL_FLAG_FAILOVER) { 12707 ctl_failover_io(io, /*have_lock*/ have_lock); 12708 return; 12709 } 12710 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, 12711 sizeof(msg.scsi) - sizeof(msg.scsi.sense_data) + 12712 msg.scsi.sense_len, M_WAITOK); 12713 12714#ifdef CTL_TIME_IO 12715 getbinuptime(&cur_bt); 12716 bintime_sub(&cur_bt, &io->io_hdr.dma_start_bt); 12717 bintime_add(&io->io_hdr.dma_bt, &cur_bt); 12718#endif 12719 io->io_hdr.num_dmas++; 12720} 12721 12722/* 12723 * The DMA to the remote side is done, now we need to tell the other side 12724 * we're done so it can continue with its data movement. 12725 */ 12726static void 12727ctl_datamove_remote_write_cb(struct ctl_ha_dt_req *rq) 12728{ 12729 union ctl_io *io; 12730 uint32_t i; 12731 12732 io = rq->context; 12733 12734 if (rq->ret != CTL_HA_STATUS_SUCCESS) { 12735 printf("%s: ISC DMA write failed with error %d", __func__, 12736 rq->ret); 12737 ctl_set_internal_failure(&io->scsiio, 12738 /*sks_valid*/ 1, 12739 /*retry_count*/ rq->ret); 12740 } 12741 12742 ctl_dt_req_free(rq); 12743 12744 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 12745 free(io->io_hdr.local_sglist[i].addr, M_CTL); 12746 free(io->io_hdr.remote_sglist, M_CTL); 12747 io->io_hdr.remote_sglist = NULL; 12748 io->io_hdr.local_sglist = NULL; 12749 12750 /* 12751 * The data is in local and remote memory, so now we need to send 12752 * status (good or back) back to the other side. 12753 */ 12754 ctl_send_datamove_done(io, /*have_lock*/ 0); 12755} 12756 12757/* 12758 * We've moved the data from the host/controller into local memory. Now we 12759 * need to push it over to the remote controller's memory. 12760 */ 12761static int 12762ctl_datamove_remote_dm_write_cb(union ctl_io *io) 12763{ 12764 int retval; 12765 12766 retval = ctl_datamove_remote_xfer(io, CTL_HA_DT_CMD_WRITE, 12767 ctl_datamove_remote_write_cb); 12768 return (retval); 12769} 12770 12771static void 12772ctl_datamove_remote_write(union ctl_io *io) 12773{ 12774 int retval; 12775 void (*fe_datamove)(union ctl_io *io); 12776 12777 /* 12778 * - Get the data from the host/HBA into local memory. 12779 * - DMA memory from the local controller to the remote controller. 12780 * - Send status back to the remote controller. 12781 */ 12782 12783 retval = ctl_datamove_remote_sgl_setup(io); 12784 if (retval != 0) 12785 return; 12786 12787 /* Switch the pointer over so the FETD knows what to do */ 12788 io->scsiio.kern_data_ptr = (uint8_t *)io->io_hdr.local_sglist; 12789 12790 /* 12791 * Use a custom move done callback, since we need to send completion 12792 * back to the other controller, not to the backend on this side. 12793 */ 12794 io->scsiio.be_move_done = ctl_datamove_remote_dm_write_cb; 12795 12796 fe_datamove = ctl_io_port(&io->io_hdr)->fe_datamove; 12797 fe_datamove(io); 12798} 12799 12800static int 12801ctl_datamove_remote_dm_read_cb(union ctl_io *io) 12802{ 12803#if 0 12804 char str[256]; 12805 char path_str[64]; 12806 struct sbuf sb; 12807#endif 12808 uint32_t i; 12809 12810 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 12811 free(io->io_hdr.local_sglist[i].addr, M_CTL); 12812 free(io->io_hdr.remote_sglist, M_CTL); 12813 io->io_hdr.remote_sglist = NULL; 12814 io->io_hdr.local_sglist = NULL; 12815 12816#if 0 12817 scsi_path_string(io, path_str, sizeof(path_str)); 12818 sbuf_new(&sb, str, sizeof(str), SBUF_FIXEDLEN); 12819 sbuf_cat(&sb, path_str); 12820 scsi_command_string(&io->scsiio, NULL, &sb); 12821 sbuf_printf(&sb, "\n"); 12822 sbuf_cat(&sb, path_str); 12823 sbuf_printf(&sb, "Tag: 0x%04x, type %d\n", 12824 io->scsiio.tag_num, io->scsiio.tag_type); 12825 sbuf_cat(&sb, path_str); 12826 sbuf_printf(&sb, "%s: flags %#x, status %#x\n", __func__, 12827 io->io_hdr.flags, io->io_hdr.status); 12828 sbuf_finish(&sb); 12829 printk("%s", sbuf_data(&sb)); 12830#endif 12831 12832 12833 /* 12834 * The read is done, now we need to send status (good or bad) back 12835 * to the other side. 12836 */ 12837 ctl_send_datamove_done(io, /*have_lock*/ 0); 12838 12839 return (0); 12840} 12841 12842static void 12843ctl_datamove_remote_read_cb(struct ctl_ha_dt_req *rq) 12844{ 12845 union ctl_io *io; 12846 void (*fe_datamove)(union ctl_io *io); 12847 12848 io = rq->context; 12849 12850 if (rq->ret != CTL_HA_STATUS_SUCCESS) { 12851 printf("%s: ISC DMA read failed with error %d\n", __func__, 12852 rq->ret); 12853 ctl_set_internal_failure(&io->scsiio, 12854 /*sks_valid*/ 1, 12855 /*retry_count*/ rq->ret); 12856 } 12857 12858 ctl_dt_req_free(rq); 12859 12860 /* Switch the pointer over so the FETD knows what to do */ 12861 io->scsiio.kern_data_ptr = (uint8_t *)io->io_hdr.local_sglist; 12862 12863 /* 12864 * Use a custom move done callback, since we need to send completion 12865 * back to the other controller, not to the backend on this side. 12866 */ 12867 io->scsiio.be_move_done = ctl_datamove_remote_dm_read_cb; 12868 12869 /* XXX KDM add checks like the ones in ctl_datamove? */ 12870 12871 fe_datamove = ctl_io_port(&io->io_hdr)->fe_datamove; 12872 fe_datamove(io); 12873} 12874 12875static int 12876ctl_datamove_remote_sgl_setup(union ctl_io *io) 12877{ 12878 struct ctl_sg_entry *local_sglist; 12879 uint32_t len_to_go; 12880 int retval; 12881 int i; 12882 12883 retval = 0; 12884 local_sglist = io->io_hdr.local_sglist; 12885 len_to_go = io->scsiio.kern_data_len; 12886 12887 /* 12888 * The difficult thing here is that the size of the various 12889 * S/G segments may be different than the size from the 12890 * remote controller. That'll make it harder when DMAing 12891 * the data back to the other side. 12892 */ 12893 for (i = 0; len_to_go > 0; i++) { 12894 local_sglist[i].len = MIN(len_to_go, CTL_HA_DATAMOVE_SEGMENT); 12895 local_sglist[i].addr = 12896 malloc(local_sglist[i].len, M_CTL, M_WAITOK); 12897 12898 len_to_go -= local_sglist[i].len; 12899 } 12900 /* 12901 * Reset the number of S/G entries accordingly. The original 12902 * number of S/G entries is available in rem_sg_entries. 12903 */ 12904 io->scsiio.kern_sg_entries = i; 12905 12906#if 0 12907 printf("%s: kern_sg_entries = %d\n", __func__, 12908 io->scsiio.kern_sg_entries); 12909 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 12910 printf("%s: sg[%d] = %p, %lu\n", __func__, i, 12911 local_sglist[i].addr, local_sglist[i].len); 12912#endif 12913 12914 return (retval); 12915} 12916 12917static int 12918ctl_datamove_remote_xfer(union ctl_io *io, unsigned command, 12919 ctl_ha_dt_cb callback) 12920{ 12921 struct ctl_ha_dt_req *rq; 12922 struct ctl_sg_entry *remote_sglist, *local_sglist; 12923 uint32_t local_used, remote_used, total_used; 12924 int i, j, isc_ret; 12925 12926 rq = ctl_dt_req_alloc(); 12927 12928 /* 12929 * If we failed to allocate the request, and if the DMA didn't fail 12930 * anyway, set busy status. This is just a resource allocation 12931 * failure. 12932 */ 12933 if ((rq == NULL) 12934 && ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE && 12935 (io->io_hdr.status & CTL_STATUS_MASK) != CTL_SUCCESS)) 12936 ctl_set_busy(&io->scsiio); 12937 12938 if ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE && 12939 (io->io_hdr.status & CTL_STATUS_MASK) != CTL_SUCCESS) { 12940 12941 if (rq != NULL) 12942 ctl_dt_req_free(rq); 12943 12944 /* 12945 * The data move failed. We need to return status back 12946 * to the other controller. No point in trying to DMA 12947 * data to the remote controller. 12948 */ 12949 12950 ctl_send_datamove_done(io, /*have_lock*/ 0); 12951 12952 return (1); 12953 } 12954 12955 local_sglist = io->io_hdr.local_sglist; 12956 remote_sglist = io->io_hdr.remote_sglist; 12957 local_used = 0; 12958 remote_used = 0; 12959 total_used = 0; 12960 12961 /* 12962 * Pull/push the data over the wire from/to the other controller. 12963 * This takes into account the possibility that the local and 12964 * remote sglists may not be identical in terms of the size of 12965 * the elements and the number of elements. 12966 * 12967 * One fundamental assumption here is that the length allocated for 12968 * both the local and remote sglists is identical. Otherwise, we've 12969 * essentially got a coding error of some sort. 12970 */ 12971 isc_ret = CTL_HA_STATUS_SUCCESS; 12972 for (i = 0, j = 0; total_used < io->scsiio.kern_data_len; ) { 12973 uint32_t cur_len; 12974 uint8_t *tmp_ptr; 12975 12976 rq->command = command; 12977 rq->context = io; 12978 12979 /* 12980 * Both pointers should be aligned. But it is possible 12981 * that the allocation length is not. They should both 12982 * also have enough slack left over at the end, though, 12983 * to round up to the next 8 byte boundary. 12984 */ 12985 cur_len = MIN(local_sglist[i].len - local_used, 12986 remote_sglist[j].len - remote_used); 12987 rq->size = cur_len; 12988 12989 tmp_ptr = (uint8_t *)local_sglist[i].addr; 12990 tmp_ptr += local_used; 12991 12992#if 0 12993 /* Use physical addresses when talking to ISC hardware */ 12994 if ((io->io_hdr.flags & CTL_FLAG_BUS_ADDR) == 0) { 12995 /* XXX KDM use busdma */ 12996 rq->local = vtophys(tmp_ptr); 12997 } else 12998 rq->local = tmp_ptr; 12999#else 13000 KASSERT((io->io_hdr.flags & CTL_FLAG_BUS_ADDR) == 0, 13001 ("HA does not support BUS_ADDR")); 13002 rq->local = tmp_ptr; 13003#endif 13004 13005 tmp_ptr = (uint8_t *)remote_sglist[j].addr; 13006 tmp_ptr += remote_used; 13007 rq->remote = tmp_ptr; 13008 13009 rq->callback = NULL; 13010 13011 local_used += cur_len; 13012 if (local_used >= local_sglist[i].len) { 13013 i++; 13014 local_used = 0; 13015 } 13016 13017 remote_used += cur_len; 13018 if (remote_used >= remote_sglist[j].len) { 13019 j++; 13020 remote_used = 0; 13021 } 13022 total_used += cur_len; 13023 13024 if (total_used >= io->scsiio.kern_data_len) 13025 rq->callback = callback; 13026 13027#if 0 13028 printf("%s: %s: local %p remote %p size %d\n", __func__, 13029 (command == CTL_HA_DT_CMD_WRITE) ? "WRITE" : "READ", 13030 rq->local, rq->remote, rq->size); 13031#endif 13032 13033 isc_ret = ctl_dt_single(rq); 13034 if (isc_ret > CTL_HA_STATUS_SUCCESS) 13035 break; 13036 } 13037 if (isc_ret != CTL_HA_STATUS_WAIT) { 13038 rq->ret = isc_ret; 13039 callback(rq); 13040 } 13041 13042 return (0); 13043} 13044 13045static void 13046ctl_datamove_remote_read(union ctl_io *io) 13047{ 13048 int retval; 13049 uint32_t i; 13050 13051 /* 13052 * This will send an error to the other controller in the case of a 13053 * failure. 13054 */ 13055 retval = ctl_datamove_remote_sgl_setup(io); 13056 if (retval != 0) 13057 return; 13058 13059 retval = ctl_datamove_remote_xfer(io, CTL_HA_DT_CMD_READ, 13060 ctl_datamove_remote_read_cb); 13061 if (retval != 0) { 13062 /* 13063 * Make sure we free memory if there was an error.. The 13064 * ctl_datamove_remote_xfer() function will send the 13065 * datamove done message, or call the callback with an 13066 * error if there is a problem. 13067 */ 13068 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 13069 free(io->io_hdr.local_sglist[i].addr, M_CTL); 13070 free(io->io_hdr.remote_sglist, M_CTL); 13071 io->io_hdr.remote_sglist = NULL; 13072 io->io_hdr.local_sglist = NULL; 13073 } 13074} 13075 13076/* 13077 * Process a datamove request from the other controller. This is used for 13078 * XFER mode only, not SER_ONLY mode. For writes, we DMA into local memory 13079 * first. Once that is complete, the data gets DMAed into the remote 13080 * controller's memory. For reads, we DMA from the remote controller's 13081 * memory into our memory first, and then move it out to the FETD. 13082 */ 13083static void 13084ctl_datamove_remote(union ctl_io *io) 13085{ 13086 13087 mtx_assert(&control_softc->ctl_lock, MA_NOTOWNED); 13088 13089 if (io->io_hdr.flags & CTL_FLAG_FAILOVER) { 13090 ctl_failover_io(io, /*have_lock*/ 0); 13091 return; 13092 } 13093 13094 /* 13095 * Note that we look for an aborted I/O here, but don't do some of 13096 * the other checks that ctl_datamove() normally does. 13097 * We don't need to run the datamove delay code, since that should 13098 * have been done if need be on the other controller. 13099 */ 13100 if (io->io_hdr.flags & CTL_FLAG_ABORT) { 13101 printf("%s: tag 0x%04x on (%u:%u:%u) aborted\n", __func__, 13102 io->scsiio.tag_num, io->io_hdr.nexus.initid, 13103 io->io_hdr.nexus.targ_port, 13104 io->io_hdr.nexus.targ_lun); 13105 io->io_hdr.port_status = 31338; 13106 ctl_send_datamove_done(io, /*have_lock*/ 0); 13107 return; 13108 } 13109 13110 if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_OUT) 13111 ctl_datamove_remote_write(io); 13112 else if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_IN) 13113 ctl_datamove_remote_read(io); 13114 else { 13115 io->io_hdr.port_status = 31339; 13116 ctl_send_datamove_done(io, /*have_lock*/ 0); 13117 } 13118} 13119 13120static void 13121ctl_process_done(union ctl_io *io) 13122{ 13123 struct ctl_lun *lun; 13124 struct ctl_softc *softc = control_softc; 13125 void (*fe_done)(union ctl_io *io); 13126 union ctl_ha_msg msg; 13127 uint32_t targ_port = io->io_hdr.nexus.targ_port; 13128 13129 CTL_DEBUG_PRINT(("ctl_process_done\n")); 13130 fe_done = softc->ctl_ports[targ_port]->fe_done; 13131 13132#ifdef CTL_TIME_IO 13133 if ((time_uptime - io->io_hdr.start_time) > ctl_time_io_secs) { 13134 char str[256]; 13135 char path_str[64]; 13136 struct sbuf sb; 13137 13138 ctl_scsi_path_string(io, path_str, sizeof(path_str)); 13139 sbuf_new(&sb, str, sizeof(str), SBUF_FIXEDLEN); 13140 13141 sbuf_cat(&sb, path_str); 13142 switch (io->io_hdr.io_type) { 13143 case CTL_IO_SCSI: 13144 ctl_scsi_command_string(&io->scsiio, NULL, &sb); 13145 sbuf_printf(&sb, "\n"); 13146 sbuf_cat(&sb, path_str); 13147 sbuf_printf(&sb, "Tag: 0x%04x, type %d\n", 13148 io->scsiio.tag_num, io->scsiio.tag_type); 13149 break; 13150 case CTL_IO_TASK: 13151 sbuf_printf(&sb, "Task I/O type: %d, Tag: 0x%04x, " 13152 "Tag Type: %d\n", io->taskio.task_action, 13153 io->taskio.tag_num, io->taskio.tag_type); 13154 break; 13155 default: 13156 panic("%s: Invalid CTL I/O type %d\n", 13157 __func__, io->io_hdr.io_type); 13158 } 13159 sbuf_cat(&sb, path_str); 13160 sbuf_printf(&sb, "ctl_process_done: %jd seconds\n", 13161 (intmax_t)time_uptime - io->io_hdr.start_time); 13162 sbuf_finish(&sb); 13163 printf("%s", sbuf_data(&sb)); 13164 } 13165#endif /* CTL_TIME_IO */ 13166 13167 switch (io->io_hdr.io_type) { 13168 case CTL_IO_SCSI: 13169 break; 13170 case CTL_IO_TASK: 13171 if (ctl_debug & CTL_DEBUG_INFO) 13172 ctl_io_error_print(io, NULL); 13173 fe_done(io); 13174 return; 13175 default: 13176 panic("%s: Invalid CTL I/O type %d\n", 13177 __func__, io->io_hdr.io_type); 13178 } 13179 13180 lun = (struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 13181 if (lun == NULL) { 13182 CTL_DEBUG_PRINT(("NULL LUN for lun %d\n", 13183 io->io_hdr.nexus.targ_mapped_lun)); 13184 goto bailout; 13185 } 13186 13187 mtx_lock(&lun->lun_lock); 13188 13189 /* 13190 * Check to see if we have any informational exception and status 13191 * of this command can be modified to report it in form of either 13192 * RECOVERED ERROR or NO SENSE, depending on MRIE mode page field. 13193 */ 13194 if (lun->ie_reported == 0 && lun->ie_asc != 0 && 13195 io->io_hdr.status == CTL_SUCCESS && 13196 (io->io_hdr.flags & CTL_FLAG_STATUS_SENT) == 0) { 13197 uint8_t mrie = lun->MODE_IE.mrie; 13198 uint8_t per = ((lun->MODE_RWER.byte3 & SMS_RWER_PER) || 13199 (lun->MODE_VER.byte3 & SMS_VER_PER)); 13200 if (((mrie == SIEP_MRIE_REC_COND && per) || 13201 mrie == SIEP_MRIE_REC_UNCOND || 13202 mrie == SIEP_MRIE_NO_SENSE) && 13203 (ctl_get_cmd_entry(&io->scsiio, NULL)->flags & 13204 CTL_CMD_FLAG_NO_SENSE) == 0) { 13205 ctl_set_sense(&io->scsiio, 13206 /*current_error*/ 1, 13207 /*sense_key*/ (mrie == SIEP_MRIE_NO_SENSE) ? 13208 SSD_KEY_NO_SENSE : SSD_KEY_RECOVERED_ERROR, 13209 /*asc*/ lun->ie_asc, 13210 /*ascq*/ lun->ie_ascq, 13211 SSD_ELEM_NONE); 13212 lun->ie_reported = 1; 13213 } 13214 } else if (lun->ie_reported < 0) 13215 lun->ie_reported = 0; 13216 13217 /* 13218 * Check to see if we have any errors to inject here. We only 13219 * inject errors for commands that don't already have errors set. 13220 */ 13221 if (!STAILQ_EMPTY(&lun->error_list) && 13222 ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS) && 13223 ((io->io_hdr.flags & CTL_FLAG_STATUS_SENT) == 0)) 13224 ctl_inject_error(lun, io); 13225 13226 /* 13227 * XXX KDM how do we treat commands that aren't completed 13228 * successfully? 13229 * 13230 * XXX KDM should we also track I/O latency? 13231 */ 13232 if ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS && 13233 io->io_hdr.io_type == CTL_IO_SCSI) { 13234#ifdef CTL_TIME_IO 13235 struct bintime cur_bt; 13236#endif 13237 int type; 13238 13239 if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == 13240 CTL_FLAG_DATA_IN) 13241 type = CTL_STATS_READ; 13242 else if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == 13243 CTL_FLAG_DATA_OUT) 13244 type = CTL_STATS_WRITE; 13245 else 13246 type = CTL_STATS_NO_IO; 13247 13248 lun->stats.ports[targ_port].bytes[type] += 13249 io->scsiio.kern_total_len; 13250 lun->stats.ports[targ_port].operations[type]++; 13251#ifdef CTL_TIME_IO 13252 bintime_add(&lun->stats.ports[targ_port].dma_time[type], 13253 &io->io_hdr.dma_bt); 13254 getbinuptime(&cur_bt); 13255 bintime_sub(&cur_bt, &io->io_hdr.start_bt); 13256 bintime_add(&lun->stats.ports[targ_port].time[type], &cur_bt); 13257#endif 13258 lun->stats.ports[targ_port].num_dmas[type] += 13259 io->io_hdr.num_dmas; 13260 } 13261 13262 /* 13263 * Remove this from the OOA queue. 13264 */ 13265 TAILQ_REMOVE(&lun->ooa_queue, &io->io_hdr, ooa_links); 13266#ifdef CTL_TIME_IO 13267 if (TAILQ_EMPTY(&lun->ooa_queue)) 13268 lun->last_busy = getsbinuptime(); 13269#endif 13270 13271 /* 13272 * Run through the blocked queue on this LUN and see if anything 13273 * has become unblocked, now that this transaction is done. 13274 */ 13275 ctl_check_blocked(lun); 13276 13277 /* 13278 * If the LUN has been invalidated, free it if there is nothing 13279 * left on its OOA queue. 13280 */ 13281 if ((lun->flags & CTL_LUN_INVALID) 13282 && TAILQ_EMPTY(&lun->ooa_queue)) { 13283 mtx_unlock(&lun->lun_lock); 13284 mtx_lock(&softc->ctl_lock); 13285 ctl_free_lun(lun); 13286 mtx_unlock(&softc->ctl_lock); 13287 } else 13288 mtx_unlock(&lun->lun_lock); 13289 13290bailout: 13291 13292 /* 13293 * If this command has been aborted, make sure we set the status 13294 * properly. The FETD is responsible for freeing the I/O and doing 13295 * whatever it needs to do to clean up its state. 13296 */ 13297 if (io->io_hdr.flags & CTL_FLAG_ABORT) 13298 ctl_set_task_aborted(&io->scsiio); 13299 13300 /* 13301 * If enabled, print command error status. 13302 */ 13303 if ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_SUCCESS && 13304 (ctl_debug & CTL_DEBUG_INFO) != 0) 13305 ctl_io_error_print(io, NULL); 13306 13307 /* 13308 * Tell the FETD or the other shelf controller we're done with this 13309 * command. Note that only SCSI commands get to this point. Task 13310 * management commands are completed above. 13311 */ 13312 if ((softc->ha_mode != CTL_HA_MODE_XFER) && 13313 (io->io_hdr.flags & CTL_FLAG_SENT_2OTHER_SC)) { 13314 memset(&msg, 0, sizeof(msg)); 13315 msg.hdr.msg_type = CTL_MSG_FINISH_IO; 13316 msg.hdr.serializing_sc = io->io_hdr.serializing_sc; 13317 msg.hdr.nexus = io->io_hdr.nexus; 13318 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, 13319 sizeof(msg.scsi) - sizeof(msg.scsi.sense_data), 13320 M_WAITOK); 13321 } 13322 13323 fe_done(io); 13324} 13325 13326#ifdef CTL_WITH_CA 13327/* 13328 * Front end should call this if it doesn't do autosense. When the request 13329 * sense comes back in from the initiator, we'll dequeue this and send it. 13330 */ 13331int 13332ctl_queue_sense(union ctl_io *io) 13333{ 13334 struct ctl_lun *lun; 13335 struct ctl_port *port; 13336 struct ctl_softc *softc; 13337 uint32_t initidx, targ_lun; 13338 13339 softc = control_softc; 13340 13341 CTL_DEBUG_PRINT(("ctl_queue_sense\n")); 13342 13343 /* 13344 * LUN lookup will likely move to the ctl_work_thread() once we 13345 * have our new queueing infrastructure (that doesn't put things on 13346 * a per-LUN queue initially). That is so that we can handle 13347 * things like an INQUIRY to a LUN that we don't have enabled. We 13348 * can't deal with that right now. 13349 */ 13350 mtx_lock(&softc->ctl_lock); 13351 13352 /* 13353 * If we don't have a LUN for this, just toss the sense 13354 * information. 13355 */ 13356 port = ctl_io_port(&ctsio->io_hdr); 13357 targ_lun = ctl_lun_map_from_port(port, io->io_hdr.nexus.targ_lun); 13358 if ((targ_lun < CTL_MAX_LUNS) 13359 && (softc->ctl_luns[targ_lun] != NULL)) 13360 lun = softc->ctl_luns[targ_lun]; 13361 else 13362 goto bailout; 13363 13364 initidx = ctl_get_initindex(&io->io_hdr.nexus); 13365 13366 mtx_lock(&lun->lun_lock); 13367 /* 13368 * Already have CA set for this LUN...toss the sense information. 13369 */ 13370 if (ctl_is_set(lun->have_ca, initidx)) { 13371 mtx_unlock(&lun->lun_lock); 13372 goto bailout; 13373 } 13374 13375 memcpy(&lun->pending_sense[initidx], &io->scsiio.sense_data, 13376 MIN(sizeof(lun->pending_sense[initidx]), 13377 sizeof(io->scsiio.sense_data))); 13378 ctl_set_mask(lun->have_ca, initidx); 13379 mtx_unlock(&lun->lun_lock); 13380 13381bailout: 13382 mtx_unlock(&softc->ctl_lock); 13383 13384 ctl_free_io(io); 13385 13386 return (CTL_RETVAL_COMPLETE); 13387} 13388#endif 13389 13390/* 13391 * Primary command inlet from frontend ports. All SCSI and task I/O 13392 * requests must go through this function. 13393 */ 13394int 13395ctl_queue(union ctl_io *io) 13396{ 13397 struct ctl_port *port; 13398 13399 CTL_DEBUG_PRINT(("ctl_queue cdb[0]=%02X\n", io->scsiio.cdb[0])); 13400 13401#ifdef CTL_TIME_IO 13402 io->io_hdr.start_time = time_uptime; 13403 getbinuptime(&io->io_hdr.start_bt); 13404#endif /* CTL_TIME_IO */ 13405 13406 /* Map FE-specific LUN ID into global one. */ 13407 port = ctl_io_port(&io->io_hdr); 13408 io->io_hdr.nexus.targ_mapped_lun = 13409 ctl_lun_map_from_port(port, io->io_hdr.nexus.targ_lun); 13410 13411 switch (io->io_hdr.io_type) { 13412 case CTL_IO_SCSI: 13413 case CTL_IO_TASK: 13414 if (ctl_debug & CTL_DEBUG_CDB) 13415 ctl_io_print(io); 13416 ctl_enqueue_incoming(io); 13417 break; 13418 default: 13419 printf("ctl_queue: unknown I/O type %d\n", io->io_hdr.io_type); 13420 return (EINVAL); 13421 } 13422 13423 return (CTL_RETVAL_COMPLETE); 13424} 13425 13426#ifdef CTL_IO_DELAY 13427static void 13428ctl_done_timer_wakeup(void *arg) 13429{ 13430 union ctl_io *io; 13431 13432 io = (union ctl_io *)arg; 13433 ctl_done(io); 13434} 13435#endif /* CTL_IO_DELAY */ 13436 13437void 13438ctl_serseq_done(union ctl_io *io) 13439{ 13440 struct ctl_lun *lun; 13441 13442 lun = (struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 13443 if (lun->be_lun == NULL || 13444 lun->be_lun->serseq == CTL_LUN_SERSEQ_OFF) 13445 return; 13446 mtx_lock(&lun->lun_lock); 13447 io->io_hdr.flags |= CTL_FLAG_SERSEQ_DONE; 13448 ctl_check_blocked(lun); 13449 mtx_unlock(&lun->lun_lock); 13450} 13451 13452void 13453ctl_done(union ctl_io *io) 13454{ 13455 13456 /* 13457 * Enable this to catch duplicate completion issues. 13458 */ 13459#if 0 13460 if (io->io_hdr.flags & CTL_FLAG_ALREADY_DONE) { 13461 printf("%s: type %d msg %d cdb %x iptl: " 13462 "%u:%u:%u tag 0x%04x " 13463 "flag %#x status %x\n", 13464 __func__, 13465 io->io_hdr.io_type, 13466 io->io_hdr.msg_type, 13467 io->scsiio.cdb[0], 13468 io->io_hdr.nexus.initid, 13469 io->io_hdr.nexus.targ_port, 13470 io->io_hdr.nexus.targ_lun, 13471 (io->io_hdr.io_type == 13472 CTL_IO_TASK) ? 13473 io->taskio.tag_num : 13474 io->scsiio.tag_num, 13475 io->io_hdr.flags, 13476 io->io_hdr.status); 13477 } else 13478 io->io_hdr.flags |= CTL_FLAG_ALREADY_DONE; 13479#endif 13480 13481 /* 13482 * This is an internal copy of an I/O, and should not go through 13483 * the normal done processing logic. 13484 */ 13485 if (io->io_hdr.flags & CTL_FLAG_INT_COPY) 13486 return; 13487 13488#ifdef CTL_IO_DELAY 13489 if (io->io_hdr.flags & CTL_FLAG_DELAY_DONE) { 13490 io->io_hdr.flags &= ~CTL_FLAG_DELAY_DONE; 13491 } else { 13492 struct ctl_lun *lun; 13493 13494 lun =(struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 13495 13496 if ((lun != NULL) 13497 && (lun->delay_info.done_delay > 0)) { 13498 13499 callout_init(&io->io_hdr.delay_callout, /*mpsafe*/ 1); 13500 io->io_hdr.flags |= CTL_FLAG_DELAY_DONE; 13501 callout_reset(&io->io_hdr.delay_callout, 13502 lun->delay_info.done_delay * hz, 13503 ctl_done_timer_wakeup, io); 13504 if (lun->delay_info.done_type == CTL_DELAY_TYPE_ONESHOT) 13505 lun->delay_info.done_delay = 0; 13506 return; 13507 } 13508 } 13509#endif /* CTL_IO_DELAY */ 13510 13511 ctl_enqueue_done(io); 13512} 13513 13514static void 13515ctl_work_thread(void *arg) 13516{ 13517 struct ctl_thread *thr = (struct ctl_thread *)arg; 13518 struct ctl_softc *softc = thr->ctl_softc; 13519 union ctl_io *io; 13520 int retval; 13521 13522 CTL_DEBUG_PRINT(("ctl_work_thread starting\n")); 13523 13524 for (;;) { 13525 /* 13526 * We handle the queues in this order: 13527 * - ISC 13528 * - done queue (to free up resources, unblock other commands) 13529 * - RtR queue 13530 * - incoming queue 13531 * 13532 * If those queues are empty, we break out of the loop and 13533 * go to sleep. 13534 */ 13535 mtx_lock(&thr->queue_lock); 13536 io = (union ctl_io *)STAILQ_FIRST(&thr->isc_queue); 13537 if (io != NULL) { 13538 STAILQ_REMOVE_HEAD(&thr->isc_queue, links); 13539 mtx_unlock(&thr->queue_lock); 13540 ctl_handle_isc(io); 13541 continue; 13542 } 13543 io = (union ctl_io *)STAILQ_FIRST(&thr->done_queue); 13544 if (io != NULL) { 13545 STAILQ_REMOVE_HEAD(&thr->done_queue, links); 13546 /* clear any blocked commands, call fe_done */ 13547 mtx_unlock(&thr->queue_lock); 13548 ctl_process_done(io); 13549 continue; 13550 } 13551 io = (union ctl_io *)STAILQ_FIRST(&thr->incoming_queue); 13552 if (io != NULL) { 13553 STAILQ_REMOVE_HEAD(&thr->incoming_queue, links); 13554 mtx_unlock(&thr->queue_lock); 13555 if (io->io_hdr.io_type == CTL_IO_TASK) 13556 ctl_run_task(io); 13557 else 13558 ctl_scsiio_precheck(softc, &io->scsiio); 13559 continue; 13560 } 13561 io = (union ctl_io *)STAILQ_FIRST(&thr->rtr_queue); 13562 if (io != NULL) { 13563 STAILQ_REMOVE_HEAD(&thr->rtr_queue, links); 13564 mtx_unlock(&thr->queue_lock); 13565 retval = ctl_scsiio(&io->scsiio); 13566 if (retval != CTL_RETVAL_COMPLETE) 13567 CTL_DEBUG_PRINT(("ctl_scsiio failed\n")); 13568 continue; 13569 } 13570 13571 /* Sleep until we have something to do. */ 13572 mtx_sleep(thr, &thr->queue_lock, PDROP | PRIBIO, "-", 0); 13573 } 13574} 13575 13576static void 13577ctl_lun_thread(void *arg) 13578{ 13579 struct ctl_softc *softc = (struct ctl_softc *)arg; 13580 struct ctl_be_lun *be_lun; 13581 13582 CTL_DEBUG_PRINT(("ctl_lun_thread starting\n")); 13583 13584 for (;;) { 13585 mtx_lock(&softc->ctl_lock); 13586 be_lun = STAILQ_FIRST(&softc->pending_lun_queue); 13587 if (be_lun != NULL) { 13588 STAILQ_REMOVE_HEAD(&softc->pending_lun_queue, links); 13589 mtx_unlock(&softc->ctl_lock); 13590 ctl_create_lun(be_lun); 13591 continue; 13592 } 13593 13594 /* Sleep until we have something to do. */ 13595 mtx_sleep(&softc->pending_lun_queue, &softc->ctl_lock, 13596 PDROP | PRIBIO, "-", 0); 13597 } 13598} 13599 13600static void 13601ctl_thresh_thread(void *arg) 13602{ 13603 struct ctl_softc *softc = (struct ctl_softc *)arg; 13604 struct ctl_lun *lun; 13605 struct ctl_logical_block_provisioning_page *page; 13606 const char *attr; 13607 union ctl_ha_msg msg; 13608 uint64_t thres, val; 13609 int i, e, set; 13610 13611 CTL_DEBUG_PRINT(("ctl_thresh_thread starting\n")); 13612 13613 for (;;) { 13614 mtx_lock(&softc->ctl_lock); 13615 STAILQ_FOREACH(lun, &softc->lun_list, links) { 13616 if ((lun->flags & CTL_LUN_DISABLED) || 13617 (lun->flags & CTL_LUN_NO_MEDIA) || 13618 lun->backend->lun_attr == NULL) 13619 continue; 13620 if ((lun->flags & CTL_LUN_PRIMARY_SC) == 0 && 13621 softc->ha_mode == CTL_HA_MODE_XFER) 13622 continue; 13623 if ((lun->MODE_RWER.byte8 & SMS_RWER_LBPERE) == 0) 13624 continue; 13625 e = 0; 13626 page = &lun->MODE_LBP; 13627 for (i = 0; i < CTL_NUM_LBP_THRESH; i++) { 13628 if ((page->descr[i].flags & SLBPPD_ENABLED) == 0) 13629 continue; 13630 thres = scsi_4btoul(page->descr[i].count); 13631 thres <<= CTL_LBP_EXPONENT; 13632 switch (page->descr[i].resource) { 13633 case 0x01: 13634 attr = "blocksavail"; 13635 break; 13636 case 0x02: 13637 attr = "blocksused"; 13638 break; 13639 case 0xf1: 13640 attr = "poolblocksavail"; 13641 break; 13642 case 0xf2: 13643 attr = "poolblocksused"; 13644 break; 13645 default: 13646 continue; 13647 } 13648 mtx_unlock(&softc->ctl_lock); // XXX 13649 val = lun->backend->lun_attr( 13650 lun->be_lun->be_lun, attr); 13651 mtx_lock(&softc->ctl_lock); 13652 if (val == UINT64_MAX) 13653 continue; 13654 if ((page->descr[i].flags & SLBPPD_ARMING_MASK) 13655 == SLBPPD_ARMING_INC) 13656 e = (val >= thres); 13657 else 13658 e = (val <= thres); 13659 if (e) 13660 break; 13661 } 13662 mtx_lock(&lun->lun_lock); 13663 if (e) { 13664 scsi_u64to8b((uint8_t *)&page->descr[i] - 13665 (uint8_t *)page, lun->ua_tpt_info); 13666 if (lun->lasttpt == 0 || 13667 time_uptime - lun->lasttpt >= CTL_LBP_UA_PERIOD) { 13668 lun->lasttpt = time_uptime; 13669 ctl_est_ua_all(lun, -1, CTL_UA_THIN_PROV_THRES); 13670 set = 1; 13671 } else 13672 set = 0; 13673 } else { 13674 lun->lasttpt = 0; 13675 ctl_clr_ua_all(lun, -1, CTL_UA_THIN_PROV_THRES); 13676 set = -1; 13677 } 13678 mtx_unlock(&lun->lun_lock); 13679 if (set != 0 && 13680 lun->ctl_softc->ha_mode == CTL_HA_MODE_XFER) { 13681 /* Send msg to other side. */ 13682 bzero(&msg.ua, sizeof(msg.ua)); 13683 msg.hdr.msg_type = CTL_MSG_UA; 13684 msg.hdr.nexus.initid = -1; 13685 msg.hdr.nexus.targ_port = -1; 13686 msg.hdr.nexus.targ_lun = lun->lun; 13687 msg.hdr.nexus.targ_mapped_lun = lun->lun; 13688 msg.ua.ua_all = 1; 13689 msg.ua.ua_set = (set > 0); 13690 msg.ua.ua_type = CTL_UA_THIN_PROV_THRES; 13691 memcpy(msg.ua.ua_info, lun->ua_tpt_info, 8); 13692 mtx_unlock(&softc->ctl_lock); // XXX 13693 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, 13694 sizeof(msg.ua), M_WAITOK); 13695 mtx_lock(&softc->ctl_lock); 13696 } 13697 } 13698 mtx_unlock(&softc->ctl_lock); 13699 pause("-", CTL_LBP_PERIOD * hz); 13700 } 13701} 13702 13703static void 13704ctl_enqueue_incoming(union ctl_io *io) 13705{ 13706 struct ctl_softc *softc = control_softc; 13707 struct ctl_thread *thr; 13708 u_int idx; 13709 13710 idx = (io->io_hdr.nexus.targ_port * 127 + 13711 io->io_hdr.nexus.initid) % worker_threads; 13712 thr = &softc->threads[idx]; 13713 mtx_lock(&thr->queue_lock); 13714 STAILQ_INSERT_TAIL(&thr->incoming_queue, &io->io_hdr, links); 13715 mtx_unlock(&thr->queue_lock); 13716 wakeup(thr); 13717} 13718 13719static void 13720ctl_enqueue_rtr(union ctl_io *io) 13721{ 13722 struct ctl_softc *softc = control_softc; 13723 struct ctl_thread *thr; 13724 13725 thr = &softc->threads[io->io_hdr.nexus.targ_mapped_lun % worker_threads]; 13726 mtx_lock(&thr->queue_lock); 13727 STAILQ_INSERT_TAIL(&thr->rtr_queue, &io->io_hdr, links); 13728 mtx_unlock(&thr->queue_lock); 13729 wakeup(thr); 13730} 13731 13732static void 13733ctl_enqueue_done(union ctl_io *io) 13734{ 13735 struct ctl_softc *softc = control_softc; 13736 struct ctl_thread *thr; 13737 13738 thr = &softc->threads[io->io_hdr.nexus.targ_mapped_lun % worker_threads]; 13739 mtx_lock(&thr->queue_lock); 13740 STAILQ_INSERT_TAIL(&thr->done_queue, &io->io_hdr, links); 13741 mtx_unlock(&thr->queue_lock); 13742 wakeup(thr); 13743} 13744 13745static void 13746ctl_enqueue_isc(union ctl_io *io) 13747{ 13748 struct ctl_softc *softc = control_softc; 13749 struct ctl_thread *thr; 13750 13751 thr = &softc->threads[io->io_hdr.nexus.targ_mapped_lun % worker_threads]; 13752 mtx_lock(&thr->queue_lock); 13753 STAILQ_INSERT_TAIL(&thr->isc_queue, &io->io_hdr, links); 13754 mtx_unlock(&thr->queue_lock); 13755 wakeup(thr); 13756} 13757 13758/* 13759 * vim: ts=8 13760 */ 13761