ctl.c revision 304737
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 304737 2016-08-24 07:50:28Z mav $"); 47 48#include <sys/param.h> 49#include <sys/systm.h> 50#include <sys/ctype.h> 51#include <sys/kernel.h> 52#include <sys/types.h> 53#include <sys/kthread.h> 54#include <sys/bio.h> 55#include <sys/fcntl.h> 56#include <sys/lock.h> 57#include <sys/module.h> 58#include <sys/mutex.h> 59#include <sys/condvar.h> 60#include <sys/malloc.h> 61#include <sys/conf.h> 62#include <sys/ioccom.h> 63#include <sys/queue.h> 64#include <sys/sbuf.h> 65#include <sys/smp.h> 66#include <sys/endian.h> 67#include <sys/sysctl.h> 68#include <vm/uma.h> 69 70#include <cam/cam.h> 71#include <cam/scsi/scsi_all.h> 72#include <cam/scsi/scsi_cd.h> 73#include <cam/scsi/scsi_da.h> 74#include <cam/ctl/ctl_io.h> 75#include <cam/ctl/ctl.h> 76#include <cam/ctl/ctl_frontend.h> 77#include <cam/ctl/ctl_util.h> 78#include <cam/ctl/ctl_backend.h> 79#include <cam/ctl/ctl_ioctl.h> 80#include <cam/ctl/ctl_ha.h> 81#include <cam/ctl/ctl_private.h> 82#include <cam/ctl/ctl_debug.h> 83#include <cam/ctl/ctl_scsi_all.h> 84#include <cam/ctl/ctl_error.h> 85 86struct ctl_softc *control_softc = NULL; 87 88/* 89 * Template mode pages. 90 */ 91 92/* 93 * Note that these are default values only. The actual values will be 94 * filled in when the user does a mode sense. 95 */ 96const static struct copan_debugconf_subpage debugconf_page_default = { 97 DBGCNF_PAGE_CODE | SMPH_SPF, /* page_code */ 98 DBGCNF_SUBPAGE_CODE, /* subpage */ 99 {(sizeof(struct copan_debugconf_subpage) - 4) >> 8, 100 (sizeof(struct copan_debugconf_subpage) - 4) >> 0}, /* page_length */ 101 DBGCNF_VERSION, /* page_version */ 102 {CTL_TIME_IO_DEFAULT_SECS>>8, 103 CTL_TIME_IO_DEFAULT_SECS>>0}, /* ctl_time_io_secs */ 104}; 105 106const static struct copan_debugconf_subpage debugconf_page_changeable = { 107 DBGCNF_PAGE_CODE | SMPH_SPF, /* page_code */ 108 DBGCNF_SUBPAGE_CODE, /* subpage */ 109 {(sizeof(struct copan_debugconf_subpage) - 4) >> 8, 110 (sizeof(struct copan_debugconf_subpage) - 4) >> 0}, /* page_length */ 111 0, /* page_version */ 112 {0xff,0xff}, /* ctl_time_io_secs */ 113}; 114 115const static struct scsi_da_rw_recovery_page rw_er_page_default = { 116 /*page_code*/SMS_RW_ERROR_RECOVERY_PAGE, 117 /*page_length*/sizeof(struct scsi_da_rw_recovery_page) - 2, 118 /*byte3*/SMS_RWER_AWRE|SMS_RWER_ARRE, 119 /*read_retry_count*/0, 120 /*correction_span*/0, 121 /*head_offset_count*/0, 122 /*data_strobe_offset_cnt*/0, 123 /*byte8*/SMS_RWER_LBPERE, 124 /*write_retry_count*/0, 125 /*reserved2*/0, 126 /*recovery_time_limit*/{0, 0}, 127}; 128 129const static struct scsi_da_rw_recovery_page rw_er_page_changeable = { 130 /*page_code*/SMS_RW_ERROR_RECOVERY_PAGE, 131 /*page_length*/sizeof(struct scsi_da_rw_recovery_page) - 2, 132 /*byte3*/0, 133 /*read_retry_count*/0, 134 /*correction_span*/0, 135 /*head_offset_count*/0, 136 /*data_strobe_offset_cnt*/0, 137 /*byte8*/0, 138 /*write_retry_count*/0, 139 /*reserved2*/0, 140 /*recovery_time_limit*/{0, 0}, 141}; 142 143const static struct scsi_format_page format_page_default = { 144 /*page_code*/SMS_FORMAT_DEVICE_PAGE, 145 /*page_length*/sizeof(struct scsi_format_page) - 2, 146 /*tracks_per_zone*/ {0, 0}, 147 /*alt_sectors_per_zone*/ {0, 0}, 148 /*alt_tracks_per_zone*/ {0, 0}, 149 /*alt_tracks_per_lun*/ {0, 0}, 150 /*sectors_per_track*/ {(CTL_DEFAULT_SECTORS_PER_TRACK >> 8) & 0xff, 151 CTL_DEFAULT_SECTORS_PER_TRACK & 0xff}, 152 /*bytes_per_sector*/ {0, 0}, 153 /*interleave*/ {0, 0}, 154 /*track_skew*/ {0, 0}, 155 /*cylinder_skew*/ {0, 0}, 156 /*flags*/ SFP_HSEC, 157 /*reserved*/ {0, 0, 0} 158}; 159 160const static struct scsi_format_page format_page_changeable = { 161 /*page_code*/SMS_FORMAT_DEVICE_PAGE, 162 /*page_length*/sizeof(struct scsi_format_page) - 2, 163 /*tracks_per_zone*/ {0, 0}, 164 /*alt_sectors_per_zone*/ {0, 0}, 165 /*alt_tracks_per_zone*/ {0, 0}, 166 /*alt_tracks_per_lun*/ {0, 0}, 167 /*sectors_per_track*/ {0, 0}, 168 /*bytes_per_sector*/ {0, 0}, 169 /*interleave*/ {0, 0}, 170 /*track_skew*/ {0, 0}, 171 /*cylinder_skew*/ {0, 0}, 172 /*flags*/ 0, 173 /*reserved*/ {0, 0, 0} 174}; 175 176const static struct scsi_rigid_disk_page rigid_disk_page_default = { 177 /*page_code*/SMS_RIGID_DISK_PAGE, 178 /*page_length*/sizeof(struct scsi_rigid_disk_page) - 2, 179 /*cylinders*/ {0, 0, 0}, 180 /*heads*/ CTL_DEFAULT_HEADS, 181 /*start_write_precomp*/ {0, 0, 0}, 182 /*start_reduced_current*/ {0, 0, 0}, 183 /*step_rate*/ {0, 0}, 184 /*landing_zone_cylinder*/ {0, 0, 0}, 185 /*rpl*/ SRDP_RPL_DISABLED, 186 /*rotational_offset*/ 0, 187 /*reserved1*/ 0, 188 /*rotation_rate*/ {(CTL_DEFAULT_ROTATION_RATE >> 8) & 0xff, 189 CTL_DEFAULT_ROTATION_RATE & 0xff}, 190 /*reserved2*/ {0, 0} 191}; 192 193const static struct scsi_rigid_disk_page rigid_disk_page_changeable = { 194 /*page_code*/SMS_RIGID_DISK_PAGE, 195 /*page_length*/sizeof(struct scsi_rigid_disk_page) - 2, 196 /*cylinders*/ {0, 0, 0}, 197 /*heads*/ 0, 198 /*start_write_precomp*/ {0, 0, 0}, 199 /*start_reduced_current*/ {0, 0, 0}, 200 /*step_rate*/ {0, 0}, 201 /*landing_zone_cylinder*/ {0, 0, 0}, 202 /*rpl*/ 0, 203 /*rotational_offset*/ 0, 204 /*reserved1*/ 0, 205 /*rotation_rate*/ {0, 0}, 206 /*reserved2*/ {0, 0} 207}; 208 209const static struct scsi_caching_page caching_page_default = { 210 /*page_code*/SMS_CACHING_PAGE, 211 /*page_length*/sizeof(struct scsi_caching_page) - 2, 212 /*flags1*/ SCP_DISC | SCP_WCE, 213 /*ret_priority*/ 0, 214 /*disable_pf_transfer_len*/ {0xff, 0xff}, 215 /*min_prefetch*/ {0, 0}, 216 /*max_prefetch*/ {0xff, 0xff}, 217 /*max_pf_ceiling*/ {0xff, 0xff}, 218 /*flags2*/ 0, 219 /*cache_segments*/ 0, 220 /*cache_seg_size*/ {0, 0}, 221 /*reserved*/ 0, 222 /*non_cache_seg_size*/ {0, 0, 0} 223}; 224 225const static struct scsi_caching_page caching_page_changeable = { 226 /*page_code*/SMS_CACHING_PAGE, 227 /*page_length*/sizeof(struct scsi_caching_page) - 2, 228 /*flags1*/ SCP_WCE | SCP_RCD, 229 /*ret_priority*/ 0, 230 /*disable_pf_transfer_len*/ {0, 0}, 231 /*min_prefetch*/ {0, 0}, 232 /*max_prefetch*/ {0, 0}, 233 /*max_pf_ceiling*/ {0, 0}, 234 /*flags2*/ 0, 235 /*cache_segments*/ 0, 236 /*cache_seg_size*/ {0, 0}, 237 /*reserved*/ 0, 238 /*non_cache_seg_size*/ {0, 0, 0} 239}; 240 241const static struct scsi_control_page control_page_default = { 242 /*page_code*/SMS_CONTROL_MODE_PAGE, 243 /*page_length*/sizeof(struct scsi_control_page) - 2, 244 /*rlec*/0, 245 /*queue_flags*/SCP_QUEUE_ALG_RESTRICTED, 246 /*eca_and_aen*/0, 247 /*flags4*/SCP_TAS, 248 /*aen_holdoff_period*/{0, 0}, 249 /*busy_timeout_period*/{0, 0}, 250 /*extended_selftest_completion_time*/{0, 0} 251}; 252 253const static struct scsi_control_page control_page_changeable = { 254 /*page_code*/SMS_CONTROL_MODE_PAGE, 255 /*page_length*/sizeof(struct scsi_control_page) - 2, 256 /*rlec*/SCP_DSENSE, 257 /*queue_flags*/SCP_QUEUE_ALG_MASK, 258 /*eca_and_aen*/SCP_SWP, 259 /*flags4*/0, 260 /*aen_holdoff_period*/{0, 0}, 261 /*busy_timeout_period*/{0, 0}, 262 /*extended_selftest_completion_time*/{0, 0} 263}; 264 265#define CTL_CEM_LEN (sizeof(struct scsi_control_ext_page) - 4) 266 267const static struct scsi_control_ext_page control_ext_page_default = { 268 /*page_code*/SMS_CONTROL_MODE_PAGE | SMPH_SPF, 269 /*subpage_code*/0x01, 270 /*page_length*/{CTL_CEM_LEN >> 8, CTL_CEM_LEN}, 271 /*flags*/0, 272 /*prio*/0, 273 /*max_sense*/0 274}; 275 276const static struct scsi_control_ext_page control_ext_page_changeable = { 277 /*page_code*/SMS_CONTROL_MODE_PAGE | SMPH_SPF, 278 /*subpage_code*/0x01, 279 /*page_length*/{CTL_CEM_LEN >> 8, CTL_CEM_LEN}, 280 /*flags*/0, 281 /*prio*/0, 282 /*max_sense*/0 283}; 284 285const static struct scsi_info_exceptions_page ie_page_default = { 286 /*page_code*/SMS_INFO_EXCEPTIONS_PAGE, 287 /*page_length*/sizeof(struct scsi_info_exceptions_page) - 2, 288 /*info_flags*/SIEP_FLAGS_DEXCPT, 289 /*mrie*/0, 290 /*interval_timer*/{0, 0, 0, 0}, 291 /*report_count*/{0, 0, 0, 0} 292}; 293 294const static struct scsi_info_exceptions_page ie_page_changeable = { 295 /*page_code*/SMS_INFO_EXCEPTIONS_PAGE, 296 /*page_length*/sizeof(struct scsi_info_exceptions_page) - 2, 297 /*info_flags*/0, 298 /*mrie*/0, 299 /*interval_timer*/{0, 0, 0, 0}, 300 /*report_count*/{0, 0, 0, 0} 301}; 302 303#define CTL_LBPM_LEN (sizeof(struct ctl_logical_block_provisioning_page) - 4) 304 305const static struct ctl_logical_block_provisioning_page lbp_page_default = {{ 306 /*page_code*/SMS_INFO_EXCEPTIONS_PAGE | SMPH_SPF, 307 /*subpage_code*/0x02, 308 /*page_length*/{CTL_LBPM_LEN >> 8, CTL_LBPM_LEN}, 309 /*flags*/0, 310 /*reserved*/{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}, 311 /*descr*/{}}, 312 {{/*flags*/0, 313 /*resource*/0x01, 314 /*reserved*/{0, 0}, 315 /*count*/{0, 0, 0, 0}}, 316 {/*flags*/0, 317 /*resource*/0x02, 318 /*reserved*/{0, 0}, 319 /*count*/{0, 0, 0, 0}}, 320 {/*flags*/0, 321 /*resource*/0xf1, 322 /*reserved*/{0, 0}, 323 /*count*/{0, 0, 0, 0}}, 324 {/*flags*/0, 325 /*resource*/0xf2, 326 /*reserved*/{0, 0}, 327 /*count*/{0, 0, 0, 0}} 328 } 329}; 330 331const static struct ctl_logical_block_provisioning_page lbp_page_changeable = {{ 332 /*page_code*/SMS_INFO_EXCEPTIONS_PAGE | SMPH_SPF, 333 /*subpage_code*/0x02, 334 /*page_length*/{CTL_LBPM_LEN >> 8, CTL_LBPM_LEN}, 335 /*flags*/0, 336 /*reserved*/{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}, 337 /*descr*/{}}, 338 {{/*flags*/0, 339 /*resource*/0, 340 /*reserved*/{0, 0}, 341 /*count*/{0, 0, 0, 0}}, 342 {/*flags*/0, 343 /*resource*/0, 344 /*reserved*/{0, 0}, 345 /*count*/{0, 0, 0, 0}}, 346 {/*flags*/0, 347 /*resource*/0, 348 /*reserved*/{0, 0}, 349 /*count*/{0, 0, 0, 0}}, 350 {/*flags*/0, 351 /*resource*/0, 352 /*reserved*/{0, 0}, 353 /*count*/{0, 0, 0, 0}} 354 } 355}; 356 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_CACHING_PAGE: { 4065 struct scsi_caching_page *caching_page; 4066 4067 KASSERT(page_index->subpage == SMS_SUBPAGE_PAGE_0, 4068 ("subpage %#x for page %#x is incorrect!", 4069 page_index->subpage, page_code)); 4070 memcpy(&lun->mode_pages.caching_page[CTL_PAGE_DEFAULT], 4071 &caching_page_default, 4072 sizeof(caching_page_default)); 4073 memcpy(&lun->mode_pages.caching_page[ 4074 CTL_PAGE_CHANGEABLE], &caching_page_changeable, 4075 sizeof(caching_page_changeable)); 4076 memcpy(&lun->mode_pages.caching_page[CTL_PAGE_SAVED], 4077 &caching_page_default, 4078 sizeof(caching_page_default)); 4079 caching_page = &lun->mode_pages.caching_page[ 4080 CTL_PAGE_SAVED]; 4081 value = ctl_get_opt(&lun->be_lun->options, "writecache"); 4082 if (value != NULL && strcmp(value, "off") == 0) 4083 caching_page->flags1 &= ~SCP_WCE; 4084 value = ctl_get_opt(&lun->be_lun->options, "readcache"); 4085 if (value != NULL && strcmp(value, "off") == 0) 4086 caching_page->flags1 |= SCP_RCD; 4087 memcpy(&lun->mode_pages.caching_page[CTL_PAGE_CURRENT], 4088 &lun->mode_pages.caching_page[CTL_PAGE_SAVED], 4089 sizeof(caching_page_default)); 4090 page_index->page_data = 4091 (uint8_t *)lun->mode_pages.caching_page; 4092 break; 4093 } 4094 case SMS_CONTROL_MODE_PAGE: { 4095 switch (page_index->subpage) { 4096 case SMS_SUBPAGE_PAGE_0: { 4097 struct scsi_control_page *control_page; 4098 4099 memcpy(&lun->mode_pages.control_page[ 4100 CTL_PAGE_DEFAULT], 4101 &control_page_default, 4102 sizeof(control_page_default)); 4103 memcpy(&lun->mode_pages.control_page[ 4104 CTL_PAGE_CHANGEABLE], 4105 &control_page_changeable, 4106 sizeof(control_page_changeable)); 4107 memcpy(&lun->mode_pages.control_page[ 4108 CTL_PAGE_SAVED], 4109 &control_page_default, 4110 sizeof(control_page_default)); 4111 control_page = &lun->mode_pages.control_page[ 4112 CTL_PAGE_SAVED]; 4113 value = ctl_get_opt(&lun->be_lun->options, 4114 "reordering"); 4115 if (value != NULL && 4116 strcmp(value, "unrestricted") == 0) { 4117 control_page->queue_flags &= 4118 ~SCP_QUEUE_ALG_MASK; 4119 control_page->queue_flags |= 4120 SCP_QUEUE_ALG_UNRESTRICTED; 4121 } 4122 memcpy(&lun->mode_pages.control_page[ 4123 CTL_PAGE_CURRENT], 4124 &lun->mode_pages.control_page[ 4125 CTL_PAGE_SAVED], 4126 sizeof(control_page_default)); 4127 page_index->page_data = 4128 (uint8_t *)lun->mode_pages.control_page; 4129 break; 4130 } 4131 case 0x01: 4132 memcpy(&lun->mode_pages.control_ext_page[ 4133 CTL_PAGE_DEFAULT], 4134 &control_ext_page_default, 4135 sizeof(control_ext_page_default)); 4136 memcpy(&lun->mode_pages.control_ext_page[ 4137 CTL_PAGE_CHANGEABLE], 4138 &control_ext_page_changeable, 4139 sizeof(control_ext_page_changeable)); 4140 memcpy(&lun->mode_pages.control_ext_page[ 4141 CTL_PAGE_SAVED], 4142 &control_ext_page_default, 4143 sizeof(control_ext_page_default)); 4144 memcpy(&lun->mode_pages.control_ext_page[ 4145 CTL_PAGE_CURRENT], 4146 &lun->mode_pages.control_ext_page[ 4147 CTL_PAGE_SAVED], 4148 sizeof(control_ext_page_default)); 4149 page_index->page_data = 4150 (uint8_t *)lun->mode_pages.control_ext_page; 4151 break; 4152 default: 4153 panic("subpage %#x for page %#x is incorrect!", 4154 page_index->subpage, page_code); 4155 } 4156 break; 4157 } 4158 case SMS_INFO_EXCEPTIONS_PAGE: { 4159 switch (page_index->subpage) { 4160 case SMS_SUBPAGE_PAGE_0: 4161 memcpy(&lun->mode_pages.ie_page[CTL_PAGE_CURRENT], 4162 &ie_page_default, 4163 sizeof(ie_page_default)); 4164 memcpy(&lun->mode_pages.ie_page[ 4165 CTL_PAGE_CHANGEABLE], &ie_page_changeable, 4166 sizeof(ie_page_changeable)); 4167 memcpy(&lun->mode_pages.ie_page[CTL_PAGE_DEFAULT], 4168 &ie_page_default, 4169 sizeof(ie_page_default)); 4170 memcpy(&lun->mode_pages.ie_page[CTL_PAGE_SAVED], 4171 &ie_page_default, 4172 sizeof(ie_page_default)); 4173 page_index->page_data = 4174 (uint8_t *)lun->mode_pages.ie_page; 4175 break; 4176 case 0x02: { 4177 struct ctl_logical_block_provisioning_page *page; 4178 4179 memcpy(&lun->mode_pages.lbp_page[CTL_PAGE_DEFAULT], 4180 &lbp_page_default, 4181 sizeof(lbp_page_default)); 4182 memcpy(&lun->mode_pages.lbp_page[ 4183 CTL_PAGE_CHANGEABLE], &lbp_page_changeable, 4184 sizeof(lbp_page_changeable)); 4185 memcpy(&lun->mode_pages.lbp_page[CTL_PAGE_SAVED], 4186 &lbp_page_default, 4187 sizeof(lbp_page_default)); 4188 page = &lun->mode_pages.lbp_page[CTL_PAGE_SAVED]; 4189 value = ctl_get_opt(&lun->be_lun->options, 4190 "avail-threshold"); 4191 if (value != NULL && 4192 ctl_expand_number(value, &ival) == 0) { 4193 page->descr[0].flags |= SLBPPD_ENABLED | 4194 SLBPPD_ARMING_DEC; 4195 if (lun->be_lun->blocksize) 4196 ival /= lun->be_lun->blocksize; 4197 else 4198 ival /= 512; 4199 scsi_ulto4b(ival >> CTL_LBP_EXPONENT, 4200 page->descr[0].count); 4201 } 4202 value = ctl_get_opt(&lun->be_lun->options, 4203 "used-threshold"); 4204 if (value != NULL && 4205 ctl_expand_number(value, &ival) == 0) { 4206 page->descr[1].flags |= SLBPPD_ENABLED | 4207 SLBPPD_ARMING_INC; 4208 if (lun->be_lun->blocksize) 4209 ival /= lun->be_lun->blocksize; 4210 else 4211 ival /= 512; 4212 scsi_ulto4b(ival >> CTL_LBP_EXPONENT, 4213 page->descr[1].count); 4214 } 4215 value = ctl_get_opt(&lun->be_lun->options, 4216 "pool-avail-threshold"); 4217 if (value != NULL && 4218 ctl_expand_number(value, &ival) == 0) { 4219 page->descr[2].flags |= SLBPPD_ENABLED | 4220 SLBPPD_ARMING_DEC; 4221 if (lun->be_lun->blocksize) 4222 ival /= lun->be_lun->blocksize; 4223 else 4224 ival /= 512; 4225 scsi_ulto4b(ival >> CTL_LBP_EXPONENT, 4226 page->descr[2].count); 4227 } 4228 value = ctl_get_opt(&lun->be_lun->options, 4229 "pool-used-threshold"); 4230 if (value != NULL && 4231 ctl_expand_number(value, &ival) == 0) { 4232 page->descr[3].flags |= SLBPPD_ENABLED | 4233 SLBPPD_ARMING_INC; 4234 if (lun->be_lun->blocksize) 4235 ival /= lun->be_lun->blocksize; 4236 else 4237 ival /= 512; 4238 scsi_ulto4b(ival >> CTL_LBP_EXPONENT, 4239 page->descr[3].count); 4240 } 4241 memcpy(&lun->mode_pages.lbp_page[CTL_PAGE_CURRENT], 4242 &lun->mode_pages.lbp_page[CTL_PAGE_SAVED], 4243 sizeof(lbp_page_default)); 4244 page_index->page_data = 4245 (uint8_t *)lun->mode_pages.lbp_page; 4246 break; 4247 } 4248 default: 4249 panic("subpage %#x for page %#x is incorrect!", 4250 page_index->subpage, page_code); 4251 } 4252 break; 4253 } 4254 case SMS_CDDVD_CAPS_PAGE:{ 4255 KASSERT(page_index->subpage == SMS_SUBPAGE_PAGE_0, 4256 ("subpage %#x for page %#x is incorrect!", 4257 page_index->subpage, page_code)); 4258 memcpy(&lun->mode_pages.cddvd_page[CTL_PAGE_DEFAULT], 4259 &cddvd_page_default, 4260 sizeof(cddvd_page_default)); 4261 memcpy(&lun->mode_pages.cddvd_page[ 4262 CTL_PAGE_CHANGEABLE], &cddvd_page_changeable, 4263 sizeof(cddvd_page_changeable)); 4264 memcpy(&lun->mode_pages.cddvd_page[CTL_PAGE_SAVED], 4265 &cddvd_page_default, 4266 sizeof(cddvd_page_default)); 4267 memcpy(&lun->mode_pages.cddvd_page[CTL_PAGE_CURRENT], 4268 &lun->mode_pages.cddvd_page[CTL_PAGE_SAVED], 4269 sizeof(cddvd_page_default)); 4270 page_index->page_data = 4271 (uint8_t *)lun->mode_pages.cddvd_page; 4272 break; 4273 } 4274 case SMS_VENDOR_SPECIFIC_PAGE:{ 4275 switch (page_index->subpage) { 4276 case DBGCNF_SUBPAGE_CODE: { 4277 memcpy(&lun->mode_pages.debugconf_subpage[ 4278 CTL_PAGE_CURRENT], 4279 &debugconf_page_default, 4280 sizeof(debugconf_page_default)); 4281 memcpy(&lun->mode_pages.debugconf_subpage[ 4282 CTL_PAGE_CHANGEABLE], 4283 &debugconf_page_changeable, 4284 sizeof(debugconf_page_changeable)); 4285 memcpy(&lun->mode_pages.debugconf_subpage[ 4286 CTL_PAGE_DEFAULT], 4287 &debugconf_page_default, 4288 sizeof(debugconf_page_default)); 4289 memcpy(&lun->mode_pages.debugconf_subpage[ 4290 CTL_PAGE_SAVED], 4291 &debugconf_page_default, 4292 sizeof(debugconf_page_default)); 4293 page_index->page_data = 4294 (uint8_t *)lun->mode_pages.debugconf_subpage; 4295 break; 4296 } 4297 default: 4298 panic("subpage %#x for page %#x is incorrect!", 4299 page_index->subpage, page_code); 4300 } 4301 break; 4302 } 4303 default: 4304 panic("invalid page code value %#x", page_code); 4305 } 4306 } 4307 4308 return (CTL_RETVAL_COMPLETE); 4309} 4310 4311static int 4312ctl_init_log_page_index(struct ctl_lun *lun) 4313{ 4314 struct ctl_page_index *page_index; 4315 int i, j, k, prev; 4316 4317 memcpy(&lun->log_pages.index, log_page_index_template, 4318 sizeof(log_page_index_template)); 4319 4320 prev = -1; 4321 for (i = 0, j = 0, k = 0; i < CTL_NUM_LOG_PAGES; i++) { 4322 4323 page_index = &lun->log_pages.index[i]; 4324 if (lun->be_lun->lun_type == T_DIRECT && 4325 (page_index->page_flags & CTL_PAGE_FLAG_DIRECT) == 0) 4326 continue; 4327 if (lun->be_lun->lun_type == T_PROCESSOR && 4328 (page_index->page_flags & CTL_PAGE_FLAG_PROC) == 0) 4329 continue; 4330 if (lun->be_lun->lun_type == T_CDROM && 4331 (page_index->page_flags & CTL_PAGE_FLAG_CDROM) == 0) 4332 continue; 4333 4334 if (page_index->page_code == SLS_LOGICAL_BLOCK_PROVISIONING && 4335 lun->backend->lun_attr == NULL) 4336 continue; 4337 4338 if (page_index->page_code != prev) { 4339 lun->log_pages.pages_page[j] = page_index->page_code; 4340 prev = page_index->page_code; 4341 j++; 4342 } 4343 lun->log_pages.subpages_page[k*2] = page_index->page_code; 4344 lun->log_pages.subpages_page[k*2+1] = page_index->subpage; 4345 k++; 4346 } 4347 lun->log_pages.index[0].page_data = &lun->log_pages.pages_page[0]; 4348 lun->log_pages.index[0].page_len = j; 4349 lun->log_pages.index[1].page_data = &lun->log_pages.subpages_page[0]; 4350 lun->log_pages.index[1].page_len = k * 2; 4351 lun->log_pages.index[2].page_data = &lun->log_pages.lbp_page[0]; 4352 lun->log_pages.index[2].page_len = 12*CTL_NUM_LBP_PARAMS; 4353 lun->log_pages.index[3].page_data = (uint8_t *)&lun->log_pages.stat_page; 4354 lun->log_pages.index[3].page_len = sizeof(lun->log_pages.stat_page); 4355 4356 return (CTL_RETVAL_COMPLETE); 4357} 4358 4359static int 4360hex2bin(const char *str, uint8_t *buf, int buf_size) 4361{ 4362 int i; 4363 u_char c; 4364 4365 memset(buf, 0, buf_size); 4366 while (isspace(str[0])) 4367 str++; 4368 if (str[0] == '0' && (str[1] == 'x' || str[1] == 'X')) 4369 str += 2; 4370 buf_size *= 2; 4371 for (i = 0; str[i] != 0 && i < buf_size; i++) { 4372 c = str[i]; 4373 if (isdigit(c)) 4374 c -= '0'; 4375 else if (isalpha(c)) 4376 c -= isupper(c) ? 'A' - 10 : 'a' - 10; 4377 else 4378 break; 4379 if (c >= 16) 4380 break; 4381 if ((i & 1) == 0) 4382 buf[i / 2] |= (c << 4); 4383 else 4384 buf[i / 2] |= c; 4385 } 4386 return ((i + 1) / 2); 4387} 4388 4389/* 4390 * LUN allocation. 4391 * 4392 * Requirements: 4393 * - caller allocates and zeros LUN storage, or passes in a NULL LUN if he 4394 * wants us to allocate the LUN and he can block. 4395 * - ctl_softc is always set 4396 * - be_lun is set if the LUN has a backend (needed for disk LUNs) 4397 * 4398 * Returns 0 for success, non-zero (errno) for failure. 4399 */ 4400static int 4401ctl_alloc_lun(struct ctl_softc *ctl_softc, struct ctl_lun *ctl_lun, 4402 struct ctl_be_lun *const be_lun) 4403{ 4404 struct ctl_lun *nlun, *lun; 4405 struct scsi_vpd_id_descriptor *desc; 4406 struct scsi_vpd_id_t10 *t10id; 4407 const char *eui, *naa, *scsiname, *vendor, *value; 4408 int lun_number, i, lun_malloced; 4409 int devidlen, idlen1, idlen2 = 0, len; 4410 4411 if (be_lun == NULL) 4412 return (EINVAL); 4413 4414 /* 4415 * We currently only support Direct Access or Processor LUN types. 4416 */ 4417 switch (be_lun->lun_type) { 4418 case T_DIRECT: 4419 case T_PROCESSOR: 4420 case T_CDROM: 4421 break; 4422 case T_SEQUENTIAL: 4423 case T_CHANGER: 4424 default: 4425 be_lun->lun_config_status(be_lun->be_lun, 4426 CTL_LUN_CONFIG_FAILURE); 4427 break; 4428 } 4429 if (ctl_lun == NULL) { 4430 lun = malloc(sizeof(*lun), M_CTL, M_WAITOK); 4431 lun_malloced = 1; 4432 } else { 4433 lun_malloced = 0; 4434 lun = ctl_lun; 4435 } 4436 4437 memset(lun, 0, sizeof(*lun)); 4438 if (lun_malloced) 4439 lun->flags = CTL_LUN_MALLOCED; 4440 4441 /* Generate LUN ID. */ 4442 devidlen = max(CTL_DEVID_MIN_LEN, 4443 strnlen(be_lun->device_id, CTL_DEVID_LEN)); 4444 idlen1 = sizeof(*t10id) + devidlen; 4445 len = sizeof(struct scsi_vpd_id_descriptor) + idlen1; 4446 scsiname = ctl_get_opt(&be_lun->options, "scsiname"); 4447 if (scsiname != NULL) { 4448 idlen2 = roundup2(strlen(scsiname) + 1, 4); 4449 len += sizeof(struct scsi_vpd_id_descriptor) + idlen2; 4450 } 4451 eui = ctl_get_opt(&be_lun->options, "eui"); 4452 if (eui != NULL) { 4453 len += sizeof(struct scsi_vpd_id_descriptor) + 16; 4454 } 4455 naa = ctl_get_opt(&be_lun->options, "naa"); 4456 if (naa != NULL) { 4457 len += sizeof(struct scsi_vpd_id_descriptor) + 16; 4458 } 4459 lun->lun_devid = malloc(sizeof(struct ctl_devid) + len, 4460 M_CTL, M_WAITOK | M_ZERO); 4461 desc = (struct scsi_vpd_id_descriptor *)lun->lun_devid->data; 4462 desc->proto_codeset = SVPD_ID_CODESET_ASCII; 4463 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | SVPD_ID_TYPE_T10; 4464 desc->length = idlen1; 4465 t10id = (struct scsi_vpd_id_t10 *)&desc->identifier[0]; 4466 memset(t10id->vendor, ' ', sizeof(t10id->vendor)); 4467 if ((vendor = ctl_get_opt(&be_lun->options, "vendor")) == NULL) { 4468 strncpy((char *)t10id->vendor, CTL_VENDOR, sizeof(t10id->vendor)); 4469 } else { 4470 strncpy(t10id->vendor, vendor, 4471 min(sizeof(t10id->vendor), strlen(vendor))); 4472 } 4473 strncpy((char *)t10id->vendor_spec_id, 4474 (char *)be_lun->device_id, devidlen); 4475 if (scsiname != NULL) { 4476 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 4477 desc->length); 4478 desc->proto_codeset = SVPD_ID_CODESET_UTF8; 4479 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | 4480 SVPD_ID_TYPE_SCSI_NAME; 4481 desc->length = idlen2; 4482 strlcpy(desc->identifier, scsiname, idlen2); 4483 } 4484 if (eui != NULL) { 4485 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 4486 desc->length); 4487 desc->proto_codeset = SVPD_ID_CODESET_BINARY; 4488 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | 4489 SVPD_ID_TYPE_EUI64; 4490 desc->length = hex2bin(eui, desc->identifier, 16); 4491 desc->length = desc->length > 12 ? 16 : 4492 (desc->length > 8 ? 12 : 8); 4493 len -= 16 - desc->length; 4494 } 4495 if (naa != NULL) { 4496 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 4497 desc->length); 4498 desc->proto_codeset = SVPD_ID_CODESET_BINARY; 4499 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | 4500 SVPD_ID_TYPE_NAA; 4501 desc->length = hex2bin(naa, desc->identifier, 16); 4502 desc->length = desc->length > 8 ? 16 : 8; 4503 len -= 16 - desc->length; 4504 } 4505 lun->lun_devid->len = len; 4506 4507 mtx_lock(&ctl_softc->ctl_lock); 4508 /* 4509 * See if the caller requested a particular LUN number. If so, see 4510 * if it is available. Otherwise, allocate the first available LUN. 4511 */ 4512 if (be_lun->flags & CTL_LUN_FLAG_ID_REQ) { 4513 if ((be_lun->req_lun_id > (CTL_MAX_LUNS - 1)) 4514 || (ctl_is_set(ctl_softc->ctl_lun_mask, be_lun->req_lun_id))) { 4515 mtx_unlock(&ctl_softc->ctl_lock); 4516 if (be_lun->req_lun_id > (CTL_MAX_LUNS - 1)) { 4517 printf("ctl: requested LUN ID %d is higher " 4518 "than CTL_MAX_LUNS - 1 (%d)\n", 4519 be_lun->req_lun_id, CTL_MAX_LUNS - 1); 4520 } else { 4521 /* 4522 * XXX KDM return an error, or just assign 4523 * another LUN ID in this case?? 4524 */ 4525 printf("ctl: requested LUN ID %d is already " 4526 "in use\n", be_lun->req_lun_id); 4527 } 4528 if (lun->flags & CTL_LUN_MALLOCED) 4529 free(lun, M_CTL); 4530 be_lun->lun_config_status(be_lun->be_lun, 4531 CTL_LUN_CONFIG_FAILURE); 4532 return (ENOSPC); 4533 } 4534 lun_number = be_lun->req_lun_id; 4535 } else { 4536 lun_number = ctl_ffz(ctl_softc->ctl_lun_mask, 0, CTL_MAX_LUNS); 4537 if (lun_number == -1) { 4538 mtx_unlock(&ctl_softc->ctl_lock); 4539 printf("ctl: can't allocate LUN, out of LUNs\n"); 4540 if (lun->flags & CTL_LUN_MALLOCED) 4541 free(lun, M_CTL); 4542 be_lun->lun_config_status(be_lun->be_lun, 4543 CTL_LUN_CONFIG_FAILURE); 4544 return (ENOSPC); 4545 } 4546 } 4547 ctl_set_mask(ctl_softc->ctl_lun_mask, lun_number); 4548 4549 mtx_init(&lun->lun_lock, "CTL LUN", NULL, MTX_DEF); 4550 lun->lun = lun_number; 4551 lun->be_lun = be_lun; 4552 /* 4553 * The processor LUN is always enabled. Disk LUNs come on line 4554 * disabled, and must be enabled by the backend. 4555 */ 4556 lun->flags |= CTL_LUN_DISABLED; 4557 lun->backend = be_lun->be; 4558 be_lun->ctl_lun = lun; 4559 be_lun->lun_id = lun_number; 4560 atomic_add_int(&be_lun->be->num_luns, 1); 4561 if (be_lun->flags & CTL_LUN_FLAG_EJECTED) 4562 lun->flags |= CTL_LUN_EJECTED; 4563 if (be_lun->flags & CTL_LUN_FLAG_NO_MEDIA) 4564 lun->flags |= CTL_LUN_NO_MEDIA; 4565 if (be_lun->flags & CTL_LUN_FLAG_STOPPED) 4566 lun->flags |= CTL_LUN_STOPPED; 4567 4568 if (be_lun->flags & CTL_LUN_FLAG_PRIMARY) 4569 lun->flags |= CTL_LUN_PRIMARY_SC; 4570 4571 value = ctl_get_opt(&be_lun->options, "removable"); 4572 if (value != NULL) { 4573 if (strcmp(value, "on") == 0) 4574 lun->flags |= CTL_LUN_REMOVABLE; 4575 } else if (be_lun->lun_type == T_CDROM) 4576 lun->flags |= CTL_LUN_REMOVABLE; 4577 4578 lun->ctl_softc = ctl_softc; 4579#ifdef CTL_TIME_IO 4580 lun->last_busy = getsbinuptime(); 4581#endif 4582 TAILQ_INIT(&lun->ooa_queue); 4583 TAILQ_INIT(&lun->blocked_queue); 4584 STAILQ_INIT(&lun->error_list); 4585 ctl_tpc_lun_init(lun); 4586 4587 /* 4588 * Initialize the mode and log page index. 4589 */ 4590 ctl_init_page_index(lun); 4591 ctl_init_log_page_index(lun); 4592 4593 /* 4594 * Now, before we insert this lun on the lun list, set the lun 4595 * inventory changed UA for all other luns. 4596 */ 4597 STAILQ_FOREACH(nlun, &ctl_softc->lun_list, links) { 4598 mtx_lock(&nlun->lun_lock); 4599 ctl_est_ua_all(nlun, -1, CTL_UA_LUN_CHANGE); 4600 mtx_unlock(&nlun->lun_lock); 4601 } 4602 4603 STAILQ_INSERT_TAIL(&ctl_softc->lun_list, lun, links); 4604 4605 ctl_softc->ctl_luns[lun_number] = lun; 4606 4607 ctl_softc->num_luns++; 4608 4609 /* Setup statistics gathering */ 4610 lun->stats.device_type = be_lun->lun_type; 4611 lun->stats.lun_number = lun_number; 4612 lun->stats.blocksize = be_lun->blocksize; 4613 if (be_lun->blocksize == 0) 4614 lun->stats.flags = CTL_LUN_STATS_NO_BLOCKSIZE; 4615 for (i = 0;i < CTL_MAX_PORTS;i++) 4616 lun->stats.ports[i].targ_port = i; 4617 4618 mtx_unlock(&ctl_softc->ctl_lock); 4619 4620 lun->be_lun->lun_config_status(lun->be_lun->be_lun, CTL_LUN_CONFIG_OK); 4621 return (0); 4622} 4623 4624/* 4625 * Delete a LUN. 4626 * Assumptions: 4627 * - LUN has already been marked invalid and any pending I/O has been taken 4628 * care of. 4629 */ 4630static int 4631ctl_free_lun(struct ctl_lun *lun) 4632{ 4633 struct ctl_softc *softc; 4634 struct ctl_lun *nlun; 4635 int i; 4636 4637 softc = lun->ctl_softc; 4638 4639 mtx_assert(&softc->ctl_lock, MA_OWNED); 4640 4641 STAILQ_REMOVE(&softc->lun_list, lun, ctl_lun, links); 4642 4643 ctl_clear_mask(softc->ctl_lun_mask, lun->lun); 4644 4645 softc->ctl_luns[lun->lun] = NULL; 4646 4647 if (!TAILQ_EMPTY(&lun->ooa_queue)) 4648 panic("Freeing a LUN %p with outstanding I/O!!\n", lun); 4649 4650 softc->num_luns--; 4651 4652 /* 4653 * Tell the backend to free resources, if this LUN has a backend. 4654 */ 4655 atomic_subtract_int(&lun->be_lun->be->num_luns, 1); 4656 lun->be_lun->lun_shutdown(lun->be_lun->be_lun); 4657 4658 ctl_tpc_lun_shutdown(lun); 4659 mtx_destroy(&lun->lun_lock); 4660 free(lun->lun_devid, M_CTL); 4661 for (i = 0; i < CTL_MAX_PORTS; i++) 4662 free(lun->pending_ua[i], M_CTL); 4663 for (i = 0; i < CTL_MAX_PORTS; i++) 4664 free(lun->pr_keys[i], M_CTL); 4665 free(lun->write_buffer, M_CTL); 4666 if (lun->flags & CTL_LUN_MALLOCED) 4667 free(lun, M_CTL); 4668 4669 STAILQ_FOREACH(nlun, &softc->lun_list, links) { 4670 mtx_lock(&nlun->lun_lock); 4671 ctl_est_ua_all(nlun, -1, CTL_UA_LUN_CHANGE); 4672 mtx_unlock(&nlun->lun_lock); 4673 } 4674 4675 return (0); 4676} 4677 4678static void 4679ctl_create_lun(struct ctl_be_lun *be_lun) 4680{ 4681 4682 /* 4683 * ctl_alloc_lun() should handle all potential failure cases. 4684 */ 4685 ctl_alloc_lun(control_softc, NULL, be_lun); 4686} 4687 4688int 4689ctl_add_lun(struct ctl_be_lun *be_lun) 4690{ 4691 struct ctl_softc *softc = control_softc; 4692 4693 mtx_lock(&softc->ctl_lock); 4694 STAILQ_INSERT_TAIL(&softc->pending_lun_queue, be_lun, links); 4695 mtx_unlock(&softc->ctl_lock); 4696 wakeup(&softc->pending_lun_queue); 4697 4698 return (0); 4699} 4700 4701int 4702ctl_enable_lun(struct ctl_be_lun *be_lun) 4703{ 4704 struct ctl_softc *softc; 4705 struct ctl_port *port, *nport; 4706 struct ctl_lun *lun; 4707 int retval; 4708 4709 lun = (struct ctl_lun *)be_lun->ctl_lun; 4710 softc = lun->ctl_softc; 4711 4712 mtx_lock(&softc->ctl_lock); 4713 mtx_lock(&lun->lun_lock); 4714 if ((lun->flags & CTL_LUN_DISABLED) == 0) { 4715 /* 4716 * eh? Why did we get called if the LUN is already 4717 * enabled? 4718 */ 4719 mtx_unlock(&lun->lun_lock); 4720 mtx_unlock(&softc->ctl_lock); 4721 return (0); 4722 } 4723 lun->flags &= ~CTL_LUN_DISABLED; 4724 mtx_unlock(&lun->lun_lock); 4725 4726 STAILQ_FOREACH_SAFE(port, &softc->port_list, links, nport) { 4727 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0 || 4728 port->lun_map != NULL || port->lun_enable == NULL) 4729 continue; 4730 4731 /* 4732 * Drop the lock while we call the FETD's enable routine. 4733 * This can lead to a callback into CTL (at least in the 4734 * case of the internal initiator frontend. 4735 */ 4736 mtx_unlock(&softc->ctl_lock); 4737 retval = port->lun_enable(port->targ_lun_arg, lun->lun); 4738 mtx_lock(&softc->ctl_lock); 4739 if (retval != 0) { 4740 printf("%s: FETD %s port %d returned error " 4741 "%d for lun_enable on lun %jd\n", 4742 __func__, port->port_name, port->targ_port, 4743 retval, (intmax_t)lun->lun); 4744 } 4745 } 4746 4747 mtx_unlock(&softc->ctl_lock); 4748 ctl_isc_announce_lun(lun); 4749 4750 return (0); 4751} 4752 4753int 4754ctl_disable_lun(struct ctl_be_lun *be_lun) 4755{ 4756 struct ctl_softc *softc; 4757 struct ctl_port *port; 4758 struct ctl_lun *lun; 4759 int retval; 4760 4761 lun = (struct ctl_lun *)be_lun->ctl_lun; 4762 softc = lun->ctl_softc; 4763 4764 mtx_lock(&softc->ctl_lock); 4765 mtx_lock(&lun->lun_lock); 4766 if (lun->flags & CTL_LUN_DISABLED) { 4767 mtx_unlock(&lun->lun_lock); 4768 mtx_unlock(&softc->ctl_lock); 4769 return (0); 4770 } 4771 lun->flags |= CTL_LUN_DISABLED; 4772 mtx_unlock(&lun->lun_lock); 4773 4774 STAILQ_FOREACH(port, &softc->port_list, links) { 4775 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0 || 4776 port->lun_map != NULL || port->lun_disable == NULL) 4777 continue; 4778 4779 /* 4780 * Drop the lock before we call the frontend's disable 4781 * routine, to avoid lock order reversals. 4782 * 4783 * XXX KDM what happens if the frontend list changes while 4784 * we're traversing it? It's unlikely, but should be handled. 4785 */ 4786 mtx_unlock(&softc->ctl_lock); 4787 retval = port->lun_disable(port->targ_lun_arg, lun->lun); 4788 mtx_lock(&softc->ctl_lock); 4789 if (retval != 0) { 4790 printf("%s: FETD %s port %d returned error " 4791 "%d for lun_disable on lun %jd\n", 4792 __func__, port->port_name, port->targ_port, 4793 retval, (intmax_t)lun->lun); 4794 } 4795 } 4796 4797 mtx_unlock(&softc->ctl_lock); 4798 ctl_isc_announce_lun(lun); 4799 4800 return (0); 4801} 4802 4803int 4804ctl_start_lun(struct ctl_be_lun *be_lun) 4805{ 4806 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 4807 4808 mtx_lock(&lun->lun_lock); 4809 lun->flags &= ~CTL_LUN_STOPPED; 4810 mtx_unlock(&lun->lun_lock); 4811 return (0); 4812} 4813 4814int 4815ctl_stop_lun(struct ctl_be_lun *be_lun) 4816{ 4817 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 4818 4819 mtx_lock(&lun->lun_lock); 4820 lun->flags |= CTL_LUN_STOPPED; 4821 mtx_unlock(&lun->lun_lock); 4822 return (0); 4823} 4824 4825int 4826ctl_lun_no_media(struct ctl_be_lun *be_lun) 4827{ 4828 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 4829 4830 mtx_lock(&lun->lun_lock); 4831 lun->flags |= CTL_LUN_NO_MEDIA; 4832 mtx_unlock(&lun->lun_lock); 4833 return (0); 4834} 4835 4836int 4837ctl_lun_has_media(struct ctl_be_lun *be_lun) 4838{ 4839 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 4840 union ctl_ha_msg msg; 4841 4842 mtx_lock(&lun->lun_lock); 4843 lun->flags &= ~(CTL_LUN_NO_MEDIA | CTL_LUN_EJECTED); 4844 if (lun->flags & CTL_LUN_REMOVABLE) 4845 ctl_est_ua_all(lun, -1, CTL_UA_MEDIUM_CHANGE); 4846 mtx_unlock(&lun->lun_lock); 4847 if ((lun->flags & CTL_LUN_REMOVABLE) && 4848 lun->ctl_softc->ha_mode == CTL_HA_MODE_XFER) { 4849 bzero(&msg.ua, sizeof(msg.ua)); 4850 msg.hdr.msg_type = CTL_MSG_UA; 4851 msg.hdr.nexus.initid = -1; 4852 msg.hdr.nexus.targ_port = -1; 4853 msg.hdr.nexus.targ_lun = lun->lun; 4854 msg.hdr.nexus.targ_mapped_lun = lun->lun; 4855 msg.ua.ua_all = 1; 4856 msg.ua.ua_set = 1; 4857 msg.ua.ua_type = CTL_UA_MEDIUM_CHANGE; 4858 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, sizeof(msg.ua), 4859 M_WAITOK); 4860 } 4861 return (0); 4862} 4863 4864int 4865ctl_lun_ejected(struct ctl_be_lun *be_lun) 4866{ 4867 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 4868 4869 mtx_lock(&lun->lun_lock); 4870 lun->flags |= CTL_LUN_EJECTED; 4871 mtx_unlock(&lun->lun_lock); 4872 return (0); 4873} 4874 4875int 4876ctl_lun_primary(struct ctl_be_lun *be_lun) 4877{ 4878 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 4879 4880 mtx_lock(&lun->lun_lock); 4881 lun->flags |= CTL_LUN_PRIMARY_SC; 4882 ctl_est_ua_all(lun, -1, CTL_UA_ASYM_ACC_CHANGE); 4883 mtx_unlock(&lun->lun_lock); 4884 ctl_isc_announce_lun(lun); 4885 return (0); 4886} 4887 4888int 4889ctl_lun_secondary(struct ctl_be_lun *be_lun) 4890{ 4891 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 4892 4893 mtx_lock(&lun->lun_lock); 4894 lun->flags &= ~CTL_LUN_PRIMARY_SC; 4895 ctl_est_ua_all(lun, -1, CTL_UA_ASYM_ACC_CHANGE); 4896 mtx_unlock(&lun->lun_lock); 4897 ctl_isc_announce_lun(lun); 4898 return (0); 4899} 4900 4901int 4902ctl_invalidate_lun(struct ctl_be_lun *be_lun) 4903{ 4904 struct ctl_softc *softc; 4905 struct ctl_lun *lun; 4906 4907 lun = (struct ctl_lun *)be_lun->ctl_lun; 4908 softc = lun->ctl_softc; 4909 4910 mtx_lock(&lun->lun_lock); 4911 4912 /* 4913 * The LUN needs to be disabled before it can be marked invalid. 4914 */ 4915 if ((lun->flags & CTL_LUN_DISABLED) == 0) { 4916 mtx_unlock(&lun->lun_lock); 4917 return (-1); 4918 } 4919 /* 4920 * Mark the LUN invalid. 4921 */ 4922 lun->flags |= CTL_LUN_INVALID; 4923 4924 /* 4925 * If there is nothing in the OOA queue, go ahead and free the LUN. 4926 * If we have something in the OOA queue, we'll free it when the 4927 * last I/O completes. 4928 */ 4929 if (TAILQ_EMPTY(&lun->ooa_queue)) { 4930 mtx_unlock(&lun->lun_lock); 4931 mtx_lock(&softc->ctl_lock); 4932 ctl_free_lun(lun); 4933 mtx_unlock(&softc->ctl_lock); 4934 } else 4935 mtx_unlock(&lun->lun_lock); 4936 4937 return (0); 4938} 4939 4940void 4941ctl_lun_capacity_changed(struct ctl_be_lun *be_lun) 4942{ 4943 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 4944 union ctl_ha_msg msg; 4945 4946 mtx_lock(&lun->lun_lock); 4947 ctl_est_ua_all(lun, -1, CTL_UA_CAPACITY_CHANGE); 4948 mtx_unlock(&lun->lun_lock); 4949 if (lun->ctl_softc->ha_mode == CTL_HA_MODE_XFER) { 4950 /* Send msg to other side. */ 4951 bzero(&msg.ua, sizeof(msg.ua)); 4952 msg.hdr.msg_type = CTL_MSG_UA; 4953 msg.hdr.nexus.initid = -1; 4954 msg.hdr.nexus.targ_port = -1; 4955 msg.hdr.nexus.targ_lun = lun->lun; 4956 msg.hdr.nexus.targ_mapped_lun = lun->lun; 4957 msg.ua.ua_all = 1; 4958 msg.ua.ua_set = 1; 4959 msg.ua.ua_type = CTL_UA_CAPACITY_CHANGE; 4960 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, sizeof(msg.ua), 4961 M_WAITOK); 4962 } 4963} 4964 4965/* 4966 * Backend "memory move is complete" callback for requests that never 4967 * make it down to say RAIDCore's configuration code. 4968 */ 4969int 4970ctl_config_move_done(union ctl_io *io) 4971{ 4972 int retval; 4973 4974 CTL_DEBUG_PRINT(("ctl_config_move_done\n")); 4975 KASSERT(io->io_hdr.io_type == CTL_IO_SCSI, 4976 ("Config I/O type isn't CTL_IO_SCSI (%d)!", io->io_hdr.io_type)); 4977 4978 if ((io->io_hdr.port_status != 0) && 4979 ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE || 4980 (io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS)) { 4981 /* 4982 * For hardware error sense keys, the sense key 4983 * specific value is defined to be a retry count, 4984 * but we use it to pass back an internal FETD 4985 * error code. XXX KDM Hopefully the FETD is only 4986 * using 16 bits for an error code, since that's 4987 * all the space we have in the sks field. 4988 */ 4989 ctl_set_internal_failure(&io->scsiio, 4990 /*sks_valid*/ 1, 4991 /*retry_count*/ 4992 io->io_hdr.port_status); 4993 } 4994 4995 if (ctl_debug & CTL_DEBUG_CDB_DATA) 4996 ctl_data_print(io); 4997 if (((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_IN) || 4998 ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE && 4999 (io->io_hdr.status & CTL_STATUS_MASK) != CTL_SUCCESS) || 5000 ((io->io_hdr.flags & CTL_FLAG_ABORT) != 0)) { 5001 /* 5002 * XXX KDM just assuming a single pointer here, and not a 5003 * S/G list. If we start using S/G lists for config data, 5004 * we'll need to know how to clean them up here as well. 5005 */ 5006 if (io->io_hdr.flags & CTL_FLAG_ALLOCATED) 5007 free(io->scsiio.kern_data_ptr, M_CTL); 5008 ctl_done(io); 5009 retval = CTL_RETVAL_COMPLETE; 5010 } else { 5011 /* 5012 * XXX KDM now we need to continue data movement. Some 5013 * options: 5014 * - call ctl_scsiio() again? We don't do this for data 5015 * writes, because for those at least we know ahead of 5016 * time where the write will go and how long it is. For 5017 * config writes, though, that information is largely 5018 * contained within the write itself, thus we need to 5019 * parse out the data again. 5020 * 5021 * - Call some other function once the data is in? 5022 */ 5023 5024 /* 5025 * XXX KDM call ctl_scsiio() again for now, and check flag 5026 * bits to see whether we're allocated or not. 5027 */ 5028 retval = ctl_scsiio(&io->scsiio); 5029 } 5030 return (retval); 5031} 5032 5033/* 5034 * This gets called by a backend driver when it is done with a 5035 * data_submit method. 5036 */ 5037void 5038ctl_data_submit_done(union ctl_io *io) 5039{ 5040 /* 5041 * If the IO_CONT flag is set, we need to call the supplied 5042 * function to continue processing the I/O, instead of completing 5043 * the I/O just yet. 5044 * 5045 * If there is an error, though, we don't want to keep processing. 5046 * Instead, just send status back to the initiator. 5047 */ 5048 if ((io->io_hdr.flags & CTL_FLAG_IO_CONT) && 5049 (io->io_hdr.flags & CTL_FLAG_ABORT) == 0 && 5050 ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE || 5051 (io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS)) { 5052 io->scsiio.io_cont(io); 5053 return; 5054 } 5055 ctl_done(io); 5056} 5057 5058/* 5059 * This gets called by a backend driver when it is done with a 5060 * configuration write. 5061 */ 5062void 5063ctl_config_write_done(union ctl_io *io) 5064{ 5065 uint8_t *buf; 5066 5067 /* 5068 * If the IO_CONT flag is set, we need to call the supplied 5069 * function to continue processing the I/O, instead of completing 5070 * the I/O just yet. 5071 * 5072 * If there is an error, though, we don't want to keep processing. 5073 * Instead, just send status back to the initiator. 5074 */ 5075 if ((io->io_hdr.flags & CTL_FLAG_IO_CONT) && 5076 (io->io_hdr.flags & CTL_FLAG_ABORT) == 0 && 5077 ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE || 5078 (io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS)) { 5079 io->scsiio.io_cont(io); 5080 return; 5081 } 5082 /* 5083 * Since a configuration write can be done for commands that actually 5084 * have data allocated, like write buffer, and commands that have 5085 * no data, like start/stop unit, we need to check here. 5086 */ 5087 if (io->io_hdr.flags & CTL_FLAG_ALLOCATED) 5088 buf = io->scsiio.kern_data_ptr; 5089 else 5090 buf = NULL; 5091 ctl_done(io); 5092 if (buf) 5093 free(buf, M_CTL); 5094} 5095 5096void 5097ctl_config_read_done(union ctl_io *io) 5098{ 5099 uint8_t *buf; 5100 5101 /* 5102 * If there is some error -- we are done, skip data transfer. 5103 */ 5104 if ((io->io_hdr.flags & CTL_FLAG_ABORT) != 0 || 5105 ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE && 5106 (io->io_hdr.status & CTL_STATUS_MASK) != CTL_SUCCESS)) { 5107 if (io->io_hdr.flags & CTL_FLAG_ALLOCATED) 5108 buf = io->scsiio.kern_data_ptr; 5109 else 5110 buf = NULL; 5111 ctl_done(io); 5112 if (buf) 5113 free(buf, M_CTL); 5114 return; 5115 } 5116 5117 /* 5118 * If the IO_CONT flag is set, we need to call the supplied 5119 * function to continue processing the I/O, instead of completing 5120 * the I/O just yet. 5121 */ 5122 if (io->io_hdr.flags & CTL_FLAG_IO_CONT) { 5123 io->scsiio.io_cont(io); 5124 return; 5125 } 5126 5127 ctl_datamove(io); 5128} 5129 5130/* 5131 * SCSI release command. 5132 */ 5133int 5134ctl_scsi_release(struct ctl_scsiio *ctsio) 5135{ 5136 struct ctl_lun *lun; 5137 uint32_t residx; 5138 5139 CTL_DEBUG_PRINT(("ctl_scsi_release\n")); 5140 5141 residx = ctl_get_initindex(&ctsio->io_hdr.nexus); 5142 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5143 5144 /* 5145 * XXX KDM right now, we only support LUN reservation. We don't 5146 * support 3rd party reservations, or extent reservations, which 5147 * might actually need the parameter list. If we've gotten this 5148 * far, we've got a LUN reservation. Anything else got kicked out 5149 * above. So, according to SPC, ignore the length. 5150 */ 5151 5152 mtx_lock(&lun->lun_lock); 5153 5154 /* 5155 * According to SPC, it is not an error for an intiator to attempt 5156 * to release a reservation on a LUN that isn't reserved, or that 5157 * is reserved by another initiator. The reservation can only be 5158 * released, though, by the initiator who made it or by one of 5159 * several reset type events. 5160 */ 5161 if ((lun->flags & CTL_LUN_RESERVED) && (lun->res_idx == residx)) 5162 lun->flags &= ~CTL_LUN_RESERVED; 5163 5164 mtx_unlock(&lun->lun_lock); 5165 5166 ctl_set_success(ctsio); 5167 ctl_done((union ctl_io *)ctsio); 5168 return (CTL_RETVAL_COMPLETE); 5169} 5170 5171int 5172ctl_scsi_reserve(struct ctl_scsiio *ctsio) 5173{ 5174 struct ctl_lun *lun; 5175 uint32_t residx; 5176 5177 CTL_DEBUG_PRINT(("ctl_reserve\n")); 5178 5179 residx = ctl_get_initindex(&ctsio->io_hdr.nexus); 5180 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5181 5182 /* 5183 * XXX KDM right now, we only support LUN reservation. We don't 5184 * support 3rd party reservations, or extent reservations, which 5185 * might actually need the parameter list. If we've gotten this 5186 * far, we've got a LUN reservation. Anything else got kicked out 5187 * above. So, according to SPC, ignore the length. 5188 */ 5189 5190 mtx_lock(&lun->lun_lock); 5191 if ((lun->flags & CTL_LUN_RESERVED) && (lun->res_idx != residx)) { 5192 ctl_set_reservation_conflict(ctsio); 5193 goto bailout; 5194 } 5195 5196 /* SPC-3 exceptions to SPC-2 RESERVE and RELEASE behavior. */ 5197 if (lun->flags & CTL_LUN_PR_RESERVED) { 5198 ctl_set_success(ctsio); 5199 goto bailout; 5200 } 5201 5202 lun->flags |= CTL_LUN_RESERVED; 5203 lun->res_idx = residx; 5204 ctl_set_success(ctsio); 5205 5206bailout: 5207 mtx_unlock(&lun->lun_lock); 5208 ctl_done((union ctl_io *)ctsio); 5209 return (CTL_RETVAL_COMPLETE); 5210} 5211 5212int 5213ctl_start_stop(struct ctl_scsiio *ctsio) 5214{ 5215 struct scsi_start_stop_unit *cdb; 5216 struct ctl_lun *lun; 5217 int retval; 5218 5219 CTL_DEBUG_PRINT(("ctl_start_stop\n")); 5220 5221 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5222 cdb = (struct scsi_start_stop_unit *)ctsio->cdb; 5223 5224 if ((cdb->how & SSS_PC_MASK) == 0) { 5225 if ((lun->flags & CTL_LUN_PR_RESERVED) && 5226 (cdb->how & SSS_START) == 0) { 5227 uint32_t residx; 5228 5229 residx = ctl_get_initindex(&ctsio->io_hdr.nexus); 5230 if (ctl_get_prkey(lun, residx) == 0 || 5231 (lun->pr_res_idx != residx && lun->pr_res_type < 4)) { 5232 5233 ctl_set_reservation_conflict(ctsio); 5234 ctl_done((union ctl_io *)ctsio); 5235 return (CTL_RETVAL_COMPLETE); 5236 } 5237 } 5238 5239 if ((cdb->how & SSS_LOEJ) && 5240 (lun->flags & CTL_LUN_REMOVABLE) == 0) { 5241 ctl_set_invalid_field(ctsio, 5242 /*sks_valid*/ 1, 5243 /*command*/ 1, 5244 /*field*/ 4, 5245 /*bit_valid*/ 1, 5246 /*bit*/ 1); 5247 ctl_done((union ctl_io *)ctsio); 5248 return (CTL_RETVAL_COMPLETE); 5249 } 5250 5251 if ((cdb->how & SSS_START) == 0 && (cdb->how & SSS_LOEJ) && 5252 lun->prevent_count > 0) { 5253 /* "Medium removal prevented" */ 5254 ctl_set_sense(ctsio, /*current_error*/ 1, 5255 /*sense_key*/(lun->flags & CTL_LUN_NO_MEDIA) ? 5256 SSD_KEY_NOT_READY : SSD_KEY_ILLEGAL_REQUEST, 5257 /*asc*/ 0x53, /*ascq*/ 0x02, SSD_ELEM_NONE); 5258 ctl_done((union ctl_io *)ctsio); 5259 return (CTL_RETVAL_COMPLETE); 5260 } 5261 } 5262 5263 retval = lun->backend->config_write((union ctl_io *)ctsio); 5264 return (retval); 5265} 5266 5267int 5268ctl_prevent_allow(struct ctl_scsiio *ctsio) 5269{ 5270 struct ctl_lun *lun; 5271 struct scsi_prevent *cdb; 5272 int retval; 5273 uint32_t initidx; 5274 5275 CTL_DEBUG_PRINT(("ctl_prevent_allow\n")); 5276 5277 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5278 cdb = (struct scsi_prevent *)ctsio->cdb; 5279 5280 if ((lun->flags & CTL_LUN_REMOVABLE) == 0) { 5281 ctl_set_invalid_opcode(ctsio); 5282 ctl_done((union ctl_io *)ctsio); 5283 return (CTL_RETVAL_COMPLETE); 5284 } 5285 5286 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 5287 mtx_lock(&lun->lun_lock); 5288 if ((cdb->how & PR_PREVENT) && 5289 ctl_is_set(lun->prevent, initidx) == 0) { 5290 ctl_set_mask(lun->prevent, initidx); 5291 lun->prevent_count++; 5292 } else if ((cdb->how & PR_PREVENT) == 0 && 5293 ctl_is_set(lun->prevent, initidx)) { 5294 ctl_clear_mask(lun->prevent, initidx); 5295 lun->prevent_count--; 5296 } 5297 mtx_unlock(&lun->lun_lock); 5298 retval = lun->backend->config_write((union ctl_io *)ctsio); 5299 return (retval); 5300} 5301 5302/* 5303 * We support the SYNCHRONIZE CACHE command (10 and 16 byte versions), but 5304 * we don't really do anything with the LBA and length fields if the user 5305 * passes them in. Instead we'll just flush out the cache for the entire 5306 * LUN. 5307 */ 5308int 5309ctl_sync_cache(struct ctl_scsiio *ctsio) 5310{ 5311 struct ctl_lun *lun; 5312 struct ctl_softc *softc; 5313 struct ctl_lba_len_flags *lbalen; 5314 uint64_t starting_lba; 5315 uint32_t block_count; 5316 int retval; 5317 uint8_t byte2; 5318 5319 CTL_DEBUG_PRINT(("ctl_sync_cache\n")); 5320 5321 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5322 softc = lun->ctl_softc; 5323 retval = 0; 5324 5325 switch (ctsio->cdb[0]) { 5326 case SYNCHRONIZE_CACHE: { 5327 struct scsi_sync_cache *cdb; 5328 cdb = (struct scsi_sync_cache *)ctsio->cdb; 5329 5330 starting_lba = scsi_4btoul(cdb->begin_lba); 5331 block_count = scsi_2btoul(cdb->lb_count); 5332 byte2 = cdb->byte2; 5333 break; 5334 } 5335 case SYNCHRONIZE_CACHE_16: { 5336 struct scsi_sync_cache_16 *cdb; 5337 cdb = (struct scsi_sync_cache_16 *)ctsio->cdb; 5338 5339 starting_lba = scsi_8btou64(cdb->begin_lba); 5340 block_count = scsi_4btoul(cdb->lb_count); 5341 byte2 = cdb->byte2; 5342 break; 5343 } 5344 default: 5345 ctl_set_invalid_opcode(ctsio); 5346 ctl_done((union ctl_io *)ctsio); 5347 goto bailout; 5348 break; /* NOTREACHED */ 5349 } 5350 5351 /* 5352 * We check the LBA and length, but don't do anything with them. 5353 * A SYNCHRONIZE CACHE will cause the entire cache for this lun to 5354 * get flushed. This check will just help satisfy anyone who wants 5355 * to see an error for an out of range LBA. 5356 */ 5357 if ((starting_lba + block_count) > (lun->be_lun->maxlba + 1)) { 5358 ctl_set_lba_out_of_range(ctsio); 5359 ctl_done((union ctl_io *)ctsio); 5360 goto bailout; 5361 } 5362 5363 lbalen = (struct ctl_lba_len_flags *)&ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 5364 lbalen->lba = starting_lba; 5365 lbalen->len = block_count; 5366 lbalen->flags = byte2; 5367 retval = lun->backend->config_write((union ctl_io *)ctsio); 5368 5369bailout: 5370 return (retval); 5371} 5372 5373int 5374ctl_format(struct ctl_scsiio *ctsio) 5375{ 5376 struct scsi_format *cdb; 5377 struct ctl_lun *lun; 5378 int length, defect_list_len; 5379 5380 CTL_DEBUG_PRINT(("ctl_format\n")); 5381 5382 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5383 5384 cdb = (struct scsi_format *)ctsio->cdb; 5385 5386 length = 0; 5387 if (cdb->byte2 & SF_FMTDATA) { 5388 if (cdb->byte2 & SF_LONGLIST) 5389 length = sizeof(struct scsi_format_header_long); 5390 else 5391 length = sizeof(struct scsi_format_header_short); 5392 } 5393 5394 if (((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) 5395 && (length > 0)) { 5396 ctsio->kern_data_ptr = malloc(length, M_CTL, M_WAITOK); 5397 ctsio->kern_data_len = length; 5398 ctsio->kern_total_len = length; 5399 ctsio->kern_data_resid = 0; 5400 ctsio->kern_rel_offset = 0; 5401 ctsio->kern_sg_entries = 0; 5402 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5403 ctsio->be_move_done = ctl_config_move_done; 5404 ctl_datamove((union ctl_io *)ctsio); 5405 5406 return (CTL_RETVAL_COMPLETE); 5407 } 5408 5409 defect_list_len = 0; 5410 5411 if (cdb->byte2 & SF_FMTDATA) { 5412 if (cdb->byte2 & SF_LONGLIST) { 5413 struct scsi_format_header_long *header; 5414 5415 header = (struct scsi_format_header_long *) 5416 ctsio->kern_data_ptr; 5417 5418 defect_list_len = scsi_4btoul(header->defect_list_len); 5419 if (defect_list_len != 0) { 5420 ctl_set_invalid_field(ctsio, 5421 /*sks_valid*/ 1, 5422 /*command*/ 0, 5423 /*field*/ 2, 5424 /*bit_valid*/ 0, 5425 /*bit*/ 0); 5426 goto bailout; 5427 } 5428 } else { 5429 struct scsi_format_header_short *header; 5430 5431 header = (struct scsi_format_header_short *) 5432 ctsio->kern_data_ptr; 5433 5434 defect_list_len = scsi_2btoul(header->defect_list_len); 5435 if (defect_list_len != 0) { 5436 ctl_set_invalid_field(ctsio, 5437 /*sks_valid*/ 1, 5438 /*command*/ 0, 5439 /*field*/ 2, 5440 /*bit_valid*/ 0, 5441 /*bit*/ 0); 5442 goto bailout; 5443 } 5444 } 5445 } 5446 5447 ctl_set_success(ctsio); 5448bailout: 5449 5450 if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) { 5451 free(ctsio->kern_data_ptr, M_CTL); 5452 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED; 5453 } 5454 5455 ctl_done((union ctl_io *)ctsio); 5456 return (CTL_RETVAL_COMPLETE); 5457} 5458 5459int 5460ctl_read_buffer(struct ctl_scsiio *ctsio) 5461{ 5462 struct ctl_lun *lun; 5463 uint64_t buffer_offset; 5464 uint32_t len; 5465 uint8_t byte2; 5466 static uint8_t descr[4]; 5467 static uint8_t echo_descr[4] = { 0 }; 5468 5469 CTL_DEBUG_PRINT(("ctl_read_buffer\n")); 5470 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5471 switch (ctsio->cdb[0]) { 5472 case READ_BUFFER: { 5473 struct scsi_read_buffer *cdb; 5474 5475 cdb = (struct scsi_read_buffer *)ctsio->cdb; 5476 buffer_offset = scsi_3btoul(cdb->offset); 5477 len = scsi_3btoul(cdb->length); 5478 byte2 = cdb->byte2; 5479 break; 5480 } 5481 case READ_BUFFER_16: { 5482 struct scsi_read_buffer_16 *cdb; 5483 5484 cdb = (struct scsi_read_buffer_16 *)ctsio->cdb; 5485 buffer_offset = scsi_8btou64(cdb->offset); 5486 len = scsi_4btoul(cdb->length); 5487 byte2 = cdb->byte2; 5488 break; 5489 } 5490 default: /* This shouldn't happen. */ 5491 ctl_set_invalid_opcode(ctsio); 5492 ctl_done((union ctl_io *)ctsio); 5493 return (CTL_RETVAL_COMPLETE); 5494 } 5495 5496 if ((byte2 & RWB_MODE) != RWB_MODE_DATA && 5497 (byte2 & RWB_MODE) != RWB_MODE_ECHO_DESCR && 5498 (byte2 & RWB_MODE) != RWB_MODE_DESCR) { 5499 ctl_set_invalid_field(ctsio, 5500 /*sks_valid*/ 1, 5501 /*command*/ 1, 5502 /*field*/ 1, 5503 /*bit_valid*/ 1, 5504 /*bit*/ 4); 5505 ctl_done((union ctl_io *)ctsio); 5506 return (CTL_RETVAL_COMPLETE); 5507 } 5508 5509 if (buffer_offset > CTL_WRITE_BUFFER_SIZE || 5510 buffer_offset + len > CTL_WRITE_BUFFER_SIZE) { 5511 ctl_set_invalid_field(ctsio, 5512 /*sks_valid*/ 1, 5513 /*command*/ 1, 5514 /*field*/ 6, 5515 /*bit_valid*/ 0, 5516 /*bit*/ 0); 5517 ctl_done((union ctl_io *)ctsio); 5518 return (CTL_RETVAL_COMPLETE); 5519 } 5520 5521 if ((byte2 & RWB_MODE) == RWB_MODE_DESCR) { 5522 descr[0] = 0; 5523 scsi_ulto3b(CTL_WRITE_BUFFER_SIZE, &descr[1]); 5524 ctsio->kern_data_ptr = descr; 5525 len = min(len, sizeof(descr)); 5526 } else if ((byte2 & RWB_MODE) == RWB_MODE_ECHO_DESCR) { 5527 ctsio->kern_data_ptr = echo_descr; 5528 len = min(len, sizeof(echo_descr)); 5529 } else { 5530 if (lun->write_buffer == NULL) { 5531 lun->write_buffer = malloc(CTL_WRITE_BUFFER_SIZE, 5532 M_CTL, M_WAITOK); 5533 } 5534 ctsio->kern_data_ptr = lun->write_buffer + buffer_offset; 5535 } 5536 ctsio->kern_data_len = len; 5537 ctsio->kern_total_len = len; 5538 ctsio->kern_data_resid = 0; 5539 ctsio->kern_rel_offset = 0; 5540 ctsio->kern_sg_entries = 0; 5541 ctl_set_success(ctsio); 5542 ctsio->be_move_done = ctl_config_move_done; 5543 ctl_datamove((union ctl_io *)ctsio); 5544 return (CTL_RETVAL_COMPLETE); 5545} 5546 5547int 5548ctl_write_buffer(struct ctl_scsiio *ctsio) 5549{ 5550 struct scsi_write_buffer *cdb; 5551 struct ctl_lun *lun; 5552 int buffer_offset, len; 5553 5554 CTL_DEBUG_PRINT(("ctl_write_buffer\n")); 5555 5556 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5557 cdb = (struct scsi_write_buffer *)ctsio->cdb; 5558 5559 if ((cdb->byte2 & RWB_MODE) != RWB_MODE_DATA) { 5560 ctl_set_invalid_field(ctsio, 5561 /*sks_valid*/ 1, 5562 /*command*/ 1, 5563 /*field*/ 1, 5564 /*bit_valid*/ 1, 5565 /*bit*/ 4); 5566 ctl_done((union ctl_io *)ctsio); 5567 return (CTL_RETVAL_COMPLETE); 5568 } 5569 5570 len = scsi_3btoul(cdb->length); 5571 buffer_offset = scsi_3btoul(cdb->offset); 5572 5573 if (buffer_offset + len > CTL_WRITE_BUFFER_SIZE) { 5574 ctl_set_invalid_field(ctsio, 5575 /*sks_valid*/ 1, 5576 /*command*/ 1, 5577 /*field*/ 6, 5578 /*bit_valid*/ 0, 5579 /*bit*/ 0); 5580 ctl_done((union ctl_io *)ctsio); 5581 return (CTL_RETVAL_COMPLETE); 5582 } 5583 5584 /* 5585 * If we've got a kernel request that hasn't been malloced yet, 5586 * malloc it and tell the caller the data buffer is here. 5587 */ 5588 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 5589 if (lun->write_buffer == NULL) { 5590 lun->write_buffer = malloc(CTL_WRITE_BUFFER_SIZE, 5591 M_CTL, M_WAITOK); 5592 } 5593 ctsio->kern_data_ptr = lun->write_buffer + buffer_offset; 5594 ctsio->kern_data_len = len; 5595 ctsio->kern_total_len = len; 5596 ctsio->kern_data_resid = 0; 5597 ctsio->kern_rel_offset = 0; 5598 ctsio->kern_sg_entries = 0; 5599 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5600 ctsio->be_move_done = ctl_config_move_done; 5601 ctl_datamove((union ctl_io *)ctsio); 5602 5603 return (CTL_RETVAL_COMPLETE); 5604 } 5605 5606 ctl_set_success(ctsio); 5607 ctl_done((union ctl_io *)ctsio); 5608 return (CTL_RETVAL_COMPLETE); 5609} 5610 5611int 5612ctl_write_same(struct ctl_scsiio *ctsio) 5613{ 5614 struct ctl_lun *lun; 5615 struct ctl_lba_len_flags *lbalen; 5616 uint64_t lba; 5617 uint32_t num_blocks; 5618 int len, retval; 5619 uint8_t byte2; 5620 5621 CTL_DEBUG_PRINT(("ctl_write_same\n")); 5622 5623 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5624 5625 switch (ctsio->cdb[0]) { 5626 case WRITE_SAME_10: { 5627 struct scsi_write_same_10 *cdb; 5628 5629 cdb = (struct scsi_write_same_10 *)ctsio->cdb; 5630 5631 lba = scsi_4btoul(cdb->addr); 5632 num_blocks = scsi_2btoul(cdb->length); 5633 byte2 = cdb->byte2; 5634 break; 5635 } 5636 case WRITE_SAME_16: { 5637 struct scsi_write_same_16 *cdb; 5638 5639 cdb = (struct scsi_write_same_16 *)ctsio->cdb; 5640 5641 lba = scsi_8btou64(cdb->addr); 5642 num_blocks = scsi_4btoul(cdb->length); 5643 byte2 = cdb->byte2; 5644 break; 5645 } 5646 default: 5647 /* 5648 * We got a command we don't support. This shouldn't 5649 * happen, commands should be filtered out above us. 5650 */ 5651 ctl_set_invalid_opcode(ctsio); 5652 ctl_done((union ctl_io *)ctsio); 5653 5654 return (CTL_RETVAL_COMPLETE); 5655 break; /* NOTREACHED */ 5656 } 5657 5658 /* ANCHOR flag can be used only together with UNMAP */ 5659 if ((byte2 & SWS_UNMAP) == 0 && (byte2 & SWS_ANCHOR) != 0) { 5660 ctl_set_invalid_field(ctsio, /*sks_valid*/ 1, 5661 /*command*/ 1, /*field*/ 1, /*bit_valid*/ 1, /*bit*/ 0); 5662 ctl_done((union ctl_io *)ctsio); 5663 return (CTL_RETVAL_COMPLETE); 5664 } 5665 5666 /* 5667 * The first check is to make sure we're in bounds, the second 5668 * check is to catch wrap-around problems. If the lba + num blocks 5669 * is less than the lba, then we've wrapped around and the block 5670 * range is invalid anyway. 5671 */ 5672 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 5673 || ((lba + num_blocks) < lba)) { 5674 ctl_set_lba_out_of_range(ctsio); 5675 ctl_done((union ctl_io *)ctsio); 5676 return (CTL_RETVAL_COMPLETE); 5677 } 5678 5679 /* Zero number of blocks means "to the last logical block" */ 5680 if (num_blocks == 0) { 5681 if ((lun->be_lun->maxlba + 1) - lba > UINT32_MAX) { 5682 ctl_set_invalid_field(ctsio, 5683 /*sks_valid*/ 0, 5684 /*command*/ 1, 5685 /*field*/ 0, 5686 /*bit_valid*/ 0, 5687 /*bit*/ 0); 5688 ctl_done((union ctl_io *)ctsio); 5689 return (CTL_RETVAL_COMPLETE); 5690 } 5691 num_blocks = (lun->be_lun->maxlba + 1) - lba; 5692 } 5693 5694 len = lun->be_lun->blocksize; 5695 5696 /* 5697 * If we've got a kernel request that hasn't been malloced yet, 5698 * malloc it and tell the caller the data buffer is here. 5699 */ 5700 if ((byte2 & SWS_NDOB) == 0 && 5701 (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 5702 ctsio->kern_data_ptr = malloc(len, M_CTL, M_WAITOK);; 5703 ctsio->kern_data_len = len; 5704 ctsio->kern_total_len = len; 5705 ctsio->kern_data_resid = 0; 5706 ctsio->kern_rel_offset = 0; 5707 ctsio->kern_sg_entries = 0; 5708 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5709 ctsio->be_move_done = ctl_config_move_done; 5710 ctl_datamove((union ctl_io *)ctsio); 5711 5712 return (CTL_RETVAL_COMPLETE); 5713 } 5714 5715 lbalen = (struct ctl_lba_len_flags *)&ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 5716 lbalen->lba = lba; 5717 lbalen->len = num_blocks; 5718 lbalen->flags = byte2; 5719 retval = lun->backend->config_write((union ctl_io *)ctsio); 5720 5721 return (retval); 5722} 5723 5724int 5725ctl_unmap(struct ctl_scsiio *ctsio) 5726{ 5727 struct ctl_lun *lun; 5728 struct scsi_unmap *cdb; 5729 struct ctl_ptr_len_flags *ptrlen; 5730 struct scsi_unmap_header *hdr; 5731 struct scsi_unmap_desc *buf, *end, *endnz, *range; 5732 uint64_t lba; 5733 uint32_t num_blocks; 5734 int len, retval; 5735 uint8_t byte2; 5736 5737 CTL_DEBUG_PRINT(("ctl_unmap\n")); 5738 5739 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5740 cdb = (struct scsi_unmap *)ctsio->cdb; 5741 5742 len = scsi_2btoul(cdb->length); 5743 byte2 = cdb->byte2; 5744 5745 /* 5746 * If we've got a kernel request that hasn't been malloced yet, 5747 * malloc it and tell the caller the data buffer is here. 5748 */ 5749 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 5750 ctsio->kern_data_ptr = malloc(len, M_CTL, M_WAITOK);; 5751 ctsio->kern_data_len = len; 5752 ctsio->kern_total_len = len; 5753 ctsio->kern_data_resid = 0; 5754 ctsio->kern_rel_offset = 0; 5755 ctsio->kern_sg_entries = 0; 5756 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5757 ctsio->be_move_done = ctl_config_move_done; 5758 ctl_datamove((union ctl_io *)ctsio); 5759 5760 return (CTL_RETVAL_COMPLETE); 5761 } 5762 5763 len = ctsio->kern_total_len - ctsio->kern_data_resid; 5764 hdr = (struct scsi_unmap_header *)ctsio->kern_data_ptr; 5765 if (len < sizeof (*hdr) || 5766 len < (scsi_2btoul(hdr->length) + sizeof(hdr->length)) || 5767 len < (scsi_2btoul(hdr->desc_length) + sizeof (*hdr)) || 5768 scsi_2btoul(hdr->desc_length) % sizeof(*buf) != 0) { 5769 ctl_set_invalid_field(ctsio, 5770 /*sks_valid*/ 0, 5771 /*command*/ 0, 5772 /*field*/ 0, 5773 /*bit_valid*/ 0, 5774 /*bit*/ 0); 5775 goto done; 5776 } 5777 len = scsi_2btoul(hdr->desc_length); 5778 buf = (struct scsi_unmap_desc *)(hdr + 1); 5779 end = buf + len / sizeof(*buf); 5780 5781 endnz = buf; 5782 for (range = buf; range < end; range++) { 5783 lba = scsi_8btou64(range->lba); 5784 num_blocks = scsi_4btoul(range->length); 5785 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 5786 || ((lba + num_blocks) < lba)) { 5787 ctl_set_lba_out_of_range(ctsio); 5788 ctl_done((union ctl_io *)ctsio); 5789 return (CTL_RETVAL_COMPLETE); 5790 } 5791 if (num_blocks != 0) 5792 endnz = range + 1; 5793 } 5794 5795 /* 5796 * Block backend can not handle zero last range. 5797 * Filter it out and return if there is nothing left. 5798 */ 5799 len = (uint8_t *)endnz - (uint8_t *)buf; 5800 if (len == 0) { 5801 ctl_set_success(ctsio); 5802 goto done; 5803 } 5804 5805 mtx_lock(&lun->lun_lock); 5806 ptrlen = (struct ctl_ptr_len_flags *) 5807 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 5808 ptrlen->ptr = (void *)buf; 5809 ptrlen->len = len; 5810 ptrlen->flags = byte2; 5811 ctl_check_blocked(lun); 5812 mtx_unlock(&lun->lun_lock); 5813 5814 retval = lun->backend->config_write((union ctl_io *)ctsio); 5815 return (retval); 5816 5817done: 5818 if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) { 5819 free(ctsio->kern_data_ptr, M_CTL); 5820 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED; 5821 } 5822 ctl_done((union ctl_io *)ctsio); 5823 return (CTL_RETVAL_COMPLETE); 5824} 5825 5826/* 5827 * Note that this function currently doesn't actually do anything inside 5828 * CTL to enforce things if the DQue bit is turned on. 5829 * 5830 * Also note that this function can't be used in the default case, because 5831 * the DQue bit isn't set in the changeable mask for the control mode page 5832 * anyway. This is just here as an example for how to implement a page 5833 * handler, and a placeholder in case we want to allow the user to turn 5834 * tagged queueing on and off. 5835 * 5836 * The D_SENSE bit handling is functional, however, and will turn 5837 * descriptor sense on and off for a given LUN. 5838 */ 5839int 5840ctl_control_page_handler(struct ctl_scsiio *ctsio, 5841 struct ctl_page_index *page_index, uint8_t *page_ptr) 5842{ 5843 struct scsi_control_page *current_cp, *saved_cp, *user_cp; 5844 struct ctl_lun *lun; 5845 int set_ua; 5846 uint32_t initidx; 5847 5848 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5849 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 5850 set_ua = 0; 5851 5852 user_cp = (struct scsi_control_page *)page_ptr; 5853 current_cp = (struct scsi_control_page *) 5854 (page_index->page_data + (page_index->page_len * 5855 CTL_PAGE_CURRENT)); 5856 saved_cp = (struct scsi_control_page *) 5857 (page_index->page_data + (page_index->page_len * 5858 CTL_PAGE_SAVED)); 5859 5860 mtx_lock(&lun->lun_lock); 5861 if (((current_cp->rlec & SCP_DSENSE) == 0) 5862 && ((user_cp->rlec & SCP_DSENSE) != 0)) { 5863 /* 5864 * Descriptor sense is currently turned off and the user 5865 * wants to turn it on. 5866 */ 5867 current_cp->rlec |= SCP_DSENSE; 5868 saved_cp->rlec |= SCP_DSENSE; 5869 lun->flags |= CTL_LUN_SENSE_DESC; 5870 set_ua = 1; 5871 } else if (((current_cp->rlec & SCP_DSENSE) != 0) 5872 && ((user_cp->rlec & SCP_DSENSE) == 0)) { 5873 /* 5874 * Descriptor sense is currently turned on, and the user 5875 * wants to turn it off. 5876 */ 5877 current_cp->rlec &= ~SCP_DSENSE; 5878 saved_cp->rlec &= ~SCP_DSENSE; 5879 lun->flags &= ~CTL_LUN_SENSE_DESC; 5880 set_ua = 1; 5881 } 5882 if ((current_cp->queue_flags & SCP_QUEUE_ALG_MASK) != 5883 (user_cp->queue_flags & SCP_QUEUE_ALG_MASK)) { 5884 current_cp->queue_flags &= ~SCP_QUEUE_ALG_MASK; 5885 current_cp->queue_flags |= user_cp->queue_flags & SCP_QUEUE_ALG_MASK; 5886 saved_cp->queue_flags &= ~SCP_QUEUE_ALG_MASK; 5887 saved_cp->queue_flags |= user_cp->queue_flags & SCP_QUEUE_ALG_MASK; 5888 set_ua = 1; 5889 } 5890 if ((current_cp->eca_and_aen & SCP_SWP) != 5891 (user_cp->eca_and_aen & SCP_SWP)) { 5892 current_cp->eca_and_aen &= ~SCP_SWP; 5893 current_cp->eca_and_aen |= user_cp->eca_and_aen & SCP_SWP; 5894 saved_cp->eca_and_aen &= ~SCP_SWP; 5895 saved_cp->eca_and_aen |= user_cp->eca_and_aen & SCP_SWP; 5896 set_ua = 1; 5897 } 5898 if (set_ua != 0) 5899 ctl_est_ua_all(lun, initidx, CTL_UA_MODE_CHANGE); 5900 mtx_unlock(&lun->lun_lock); 5901 if (set_ua) { 5902 ctl_isc_announce_mode(lun, 5903 ctl_get_initindex(&ctsio->io_hdr.nexus), 5904 page_index->page_code, page_index->subpage); 5905 } 5906 return (0); 5907} 5908 5909int 5910ctl_caching_sp_handler(struct ctl_scsiio *ctsio, 5911 struct ctl_page_index *page_index, uint8_t *page_ptr) 5912{ 5913 struct scsi_caching_page *current_cp, *saved_cp, *user_cp; 5914 struct ctl_lun *lun; 5915 int set_ua; 5916 uint32_t initidx; 5917 5918 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5919 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 5920 set_ua = 0; 5921 5922 user_cp = (struct scsi_caching_page *)page_ptr; 5923 current_cp = (struct scsi_caching_page *) 5924 (page_index->page_data + (page_index->page_len * 5925 CTL_PAGE_CURRENT)); 5926 saved_cp = (struct scsi_caching_page *) 5927 (page_index->page_data + (page_index->page_len * 5928 CTL_PAGE_SAVED)); 5929 5930 mtx_lock(&lun->lun_lock); 5931 if ((current_cp->flags1 & (SCP_WCE | SCP_RCD)) != 5932 (user_cp->flags1 & (SCP_WCE | SCP_RCD))) { 5933 current_cp->flags1 &= ~(SCP_WCE | SCP_RCD); 5934 current_cp->flags1 |= user_cp->flags1 & (SCP_WCE | SCP_RCD); 5935 saved_cp->flags1 &= ~(SCP_WCE | SCP_RCD); 5936 saved_cp->flags1 |= user_cp->flags1 & (SCP_WCE | SCP_RCD); 5937 set_ua = 1; 5938 } 5939 if (set_ua != 0) 5940 ctl_est_ua_all(lun, initidx, CTL_UA_MODE_CHANGE); 5941 mtx_unlock(&lun->lun_lock); 5942 if (set_ua) { 5943 ctl_isc_announce_mode(lun, 5944 ctl_get_initindex(&ctsio->io_hdr.nexus), 5945 page_index->page_code, page_index->subpage); 5946 } 5947 return (0); 5948} 5949 5950int 5951ctl_debugconf_sp_select_handler(struct ctl_scsiio *ctsio, 5952 struct ctl_page_index *page_index, 5953 uint8_t *page_ptr) 5954{ 5955 uint8_t *c; 5956 int i; 5957 5958 c = ((struct copan_debugconf_subpage *)page_ptr)->ctl_time_io_secs; 5959 ctl_time_io_secs = 5960 (c[0] << 8) | 5961 (c[1] << 0) | 5962 0; 5963 CTL_DEBUG_PRINT(("set ctl_time_io_secs to %d\n", ctl_time_io_secs)); 5964 printf("set ctl_time_io_secs to %d\n", ctl_time_io_secs); 5965 printf("page data:"); 5966 for (i=0; i<8; i++) 5967 printf(" %.2x",page_ptr[i]); 5968 printf("\n"); 5969 return (0); 5970} 5971 5972int 5973ctl_debugconf_sp_sense_handler(struct ctl_scsiio *ctsio, 5974 struct ctl_page_index *page_index, 5975 int pc) 5976{ 5977 struct copan_debugconf_subpage *page; 5978 5979 page = (struct copan_debugconf_subpage *)page_index->page_data + 5980 (page_index->page_len * pc); 5981 5982 switch (pc) { 5983 case SMS_PAGE_CTRL_CHANGEABLE >> 6: 5984 case SMS_PAGE_CTRL_DEFAULT >> 6: 5985 case SMS_PAGE_CTRL_SAVED >> 6: 5986 /* 5987 * We don't update the changable or default bits for this page. 5988 */ 5989 break; 5990 case SMS_PAGE_CTRL_CURRENT >> 6: 5991 page->ctl_time_io_secs[0] = ctl_time_io_secs >> 8; 5992 page->ctl_time_io_secs[1] = ctl_time_io_secs >> 0; 5993 break; 5994 default: 5995 break; 5996 } 5997 return (0); 5998} 5999 6000 6001static int 6002ctl_do_mode_select(union ctl_io *io) 6003{ 6004 struct scsi_mode_page_header *page_header; 6005 struct ctl_page_index *page_index; 6006 struct ctl_scsiio *ctsio; 6007 int page_len, page_len_offset, page_len_size; 6008 union ctl_modepage_info *modepage_info; 6009 struct ctl_lun *lun; 6010 int *len_left, *len_used; 6011 int retval, i; 6012 6013 ctsio = &io->scsiio; 6014 page_index = NULL; 6015 page_len = 0; 6016 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6017 6018 modepage_info = (union ctl_modepage_info *) 6019 ctsio->io_hdr.ctl_private[CTL_PRIV_MODEPAGE].bytes; 6020 len_left = &modepage_info->header.len_left; 6021 len_used = &modepage_info->header.len_used; 6022 6023do_next_page: 6024 6025 page_header = (struct scsi_mode_page_header *) 6026 (ctsio->kern_data_ptr + *len_used); 6027 6028 if (*len_left == 0) { 6029 free(ctsio->kern_data_ptr, M_CTL); 6030 ctl_set_success(ctsio); 6031 ctl_done((union ctl_io *)ctsio); 6032 return (CTL_RETVAL_COMPLETE); 6033 } else if (*len_left < sizeof(struct scsi_mode_page_header)) { 6034 6035 free(ctsio->kern_data_ptr, M_CTL); 6036 ctl_set_param_len_error(ctsio); 6037 ctl_done((union ctl_io *)ctsio); 6038 return (CTL_RETVAL_COMPLETE); 6039 6040 } else if ((page_header->page_code & SMPH_SPF) 6041 && (*len_left < sizeof(struct scsi_mode_page_header_sp))) { 6042 6043 free(ctsio->kern_data_ptr, M_CTL); 6044 ctl_set_param_len_error(ctsio); 6045 ctl_done((union ctl_io *)ctsio); 6046 return (CTL_RETVAL_COMPLETE); 6047 } 6048 6049 6050 /* 6051 * XXX KDM should we do something with the block descriptor? 6052 */ 6053 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6054 page_index = &lun->mode_pages.index[i]; 6055 if (lun->be_lun->lun_type == T_DIRECT && 6056 (page_index->page_flags & CTL_PAGE_FLAG_DIRECT) == 0) 6057 continue; 6058 if (lun->be_lun->lun_type == T_PROCESSOR && 6059 (page_index->page_flags & CTL_PAGE_FLAG_PROC) == 0) 6060 continue; 6061 if (lun->be_lun->lun_type == T_CDROM && 6062 (page_index->page_flags & CTL_PAGE_FLAG_CDROM) == 0) 6063 continue; 6064 6065 if ((page_index->page_code & SMPH_PC_MASK) != 6066 (page_header->page_code & SMPH_PC_MASK)) 6067 continue; 6068 6069 /* 6070 * If neither page has a subpage code, then we've got a 6071 * match. 6072 */ 6073 if (((page_index->page_code & SMPH_SPF) == 0) 6074 && ((page_header->page_code & SMPH_SPF) == 0)) { 6075 page_len = page_header->page_length; 6076 break; 6077 } 6078 6079 /* 6080 * If both pages have subpages, then the subpage numbers 6081 * have to match. 6082 */ 6083 if ((page_index->page_code & SMPH_SPF) 6084 && (page_header->page_code & SMPH_SPF)) { 6085 struct scsi_mode_page_header_sp *sph; 6086 6087 sph = (struct scsi_mode_page_header_sp *)page_header; 6088 if (page_index->subpage == sph->subpage) { 6089 page_len = scsi_2btoul(sph->page_length); 6090 break; 6091 } 6092 } 6093 } 6094 6095 /* 6096 * If we couldn't find the page, or if we don't have a mode select 6097 * handler for it, send back an error to the user. 6098 */ 6099 if ((i >= CTL_NUM_MODE_PAGES) 6100 || (page_index->select_handler == NULL)) { 6101 ctl_set_invalid_field(ctsio, 6102 /*sks_valid*/ 1, 6103 /*command*/ 0, 6104 /*field*/ *len_used, 6105 /*bit_valid*/ 0, 6106 /*bit*/ 0); 6107 free(ctsio->kern_data_ptr, M_CTL); 6108 ctl_done((union ctl_io *)ctsio); 6109 return (CTL_RETVAL_COMPLETE); 6110 } 6111 6112 if (page_index->page_code & SMPH_SPF) { 6113 page_len_offset = 2; 6114 page_len_size = 2; 6115 } else { 6116 page_len_size = 1; 6117 page_len_offset = 1; 6118 } 6119 6120 /* 6121 * If the length the initiator gives us isn't the one we specify in 6122 * the mode page header, or if they didn't specify enough data in 6123 * the CDB to avoid truncating this page, kick out the request. 6124 */ 6125 if ((page_len != (page_index->page_len - page_len_offset - 6126 page_len_size)) 6127 || (*len_left < page_index->page_len)) { 6128 6129 6130 ctl_set_invalid_field(ctsio, 6131 /*sks_valid*/ 1, 6132 /*command*/ 0, 6133 /*field*/ *len_used + page_len_offset, 6134 /*bit_valid*/ 0, 6135 /*bit*/ 0); 6136 free(ctsio->kern_data_ptr, M_CTL); 6137 ctl_done((union ctl_io *)ctsio); 6138 return (CTL_RETVAL_COMPLETE); 6139 } 6140 6141 /* 6142 * Run through the mode page, checking to make sure that the bits 6143 * the user changed are actually legal for him to change. 6144 */ 6145 for (i = 0; i < page_index->page_len; i++) { 6146 uint8_t *user_byte, *change_mask, *current_byte; 6147 int bad_bit; 6148 int j; 6149 6150 user_byte = (uint8_t *)page_header + i; 6151 change_mask = page_index->page_data + 6152 (page_index->page_len * CTL_PAGE_CHANGEABLE) + i; 6153 current_byte = page_index->page_data + 6154 (page_index->page_len * CTL_PAGE_CURRENT) + i; 6155 6156 /* 6157 * Check to see whether the user set any bits in this byte 6158 * that he is not allowed to set. 6159 */ 6160 if ((*user_byte & ~(*change_mask)) == 6161 (*current_byte & ~(*change_mask))) 6162 continue; 6163 6164 /* 6165 * Go through bit by bit to determine which one is illegal. 6166 */ 6167 bad_bit = 0; 6168 for (j = 7; j >= 0; j--) { 6169 if ((((1 << i) & ~(*change_mask)) & *user_byte) != 6170 (((1 << i) & ~(*change_mask)) & *current_byte)) { 6171 bad_bit = i; 6172 break; 6173 } 6174 } 6175 ctl_set_invalid_field(ctsio, 6176 /*sks_valid*/ 1, 6177 /*command*/ 0, 6178 /*field*/ *len_used + i, 6179 /*bit_valid*/ 1, 6180 /*bit*/ bad_bit); 6181 free(ctsio->kern_data_ptr, M_CTL); 6182 ctl_done((union ctl_io *)ctsio); 6183 return (CTL_RETVAL_COMPLETE); 6184 } 6185 6186 /* 6187 * Decrement these before we call the page handler, since we may 6188 * end up getting called back one way or another before the handler 6189 * returns to this context. 6190 */ 6191 *len_left -= page_index->page_len; 6192 *len_used += page_index->page_len; 6193 6194 retval = page_index->select_handler(ctsio, page_index, 6195 (uint8_t *)page_header); 6196 6197 /* 6198 * If the page handler returns CTL_RETVAL_QUEUED, then we need to 6199 * wait until this queued command completes to finish processing 6200 * the mode page. If it returns anything other than 6201 * CTL_RETVAL_COMPLETE (e.g. CTL_RETVAL_ERROR), then it should have 6202 * already set the sense information, freed the data pointer, and 6203 * completed the io for us. 6204 */ 6205 if (retval != CTL_RETVAL_COMPLETE) 6206 goto bailout_no_done; 6207 6208 /* 6209 * If the initiator sent us more than one page, parse the next one. 6210 */ 6211 if (*len_left > 0) 6212 goto do_next_page; 6213 6214 ctl_set_success(ctsio); 6215 free(ctsio->kern_data_ptr, M_CTL); 6216 ctl_done((union ctl_io *)ctsio); 6217 6218bailout_no_done: 6219 6220 return (CTL_RETVAL_COMPLETE); 6221 6222} 6223 6224int 6225ctl_mode_select(struct ctl_scsiio *ctsio) 6226{ 6227 int param_len, pf, sp; 6228 int header_size, bd_len; 6229 union ctl_modepage_info *modepage_info; 6230 6231 switch (ctsio->cdb[0]) { 6232 case MODE_SELECT_6: { 6233 struct scsi_mode_select_6 *cdb; 6234 6235 cdb = (struct scsi_mode_select_6 *)ctsio->cdb; 6236 6237 pf = (cdb->byte2 & SMS_PF) ? 1 : 0; 6238 sp = (cdb->byte2 & SMS_SP) ? 1 : 0; 6239 param_len = cdb->length; 6240 header_size = sizeof(struct scsi_mode_header_6); 6241 break; 6242 } 6243 case MODE_SELECT_10: { 6244 struct scsi_mode_select_10 *cdb; 6245 6246 cdb = (struct scsi_mode_select_10 *)ctsio->cdb; 6247 6248 pf = (cdb->byte2 & SMS_PF) ? 1 : 0; 6249 sp = (cdb->byte2 & SMS_SP) ? 1 : 0; 6250 param_len = scsi_2btoul(cdb->length); 6251 header_size = sizeof(struct scsi_mode_header_10); 6252 break; 6253 } 6254 default: 6255 ctl_set_invalid_opcode(ctsio); 6256 ctl_done((union ctl_io *)ctsio); 6257 return (CTL_RETVAL_COMPLETE); 6258 } 6259 6260 /* 6261 * From SPC-3: 6262 * "A parameter list length of zero indicates that the Data-Out Buffer 6263 * shall be empty. This condition shall not be considered as an error." 6264 */ 6265 if (param_len == 0) { 6266 ctl_set_success(ctsio); 6267 ctl_done((union ctl_io *)ctsio); 6268 return (CTL_RETVAL_COMPLETE); 6269 } 6270 6271 /* 6272 * Since we'll hit this the first time through, prior to 6273 * allocation, we don't need to free a data buffer here. 6274 */ 6275 if (param_len < header_size) { 6276 ctl_set_param_len_error(ctsio); 6277 ctl_done((union ctl_io *)ctsio); 6278 return (CTL_RETVAL_COMPLETE); 6279 } 6280 6281 /* 6282 * Allocate the data buffer and grab the user's data. In theory, 6283 * we shouldn't have to sanity check the parameter list length here 6284 * because the maximum size is 64K. We should be able to malloc 6285 * that much without too many problems. 6286 */ 6287 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 6288 ctsio->kern_data_ptr = malloc(param_len, M_CTL, M_WAITOK); 6289 ctsio->kern_data_len = param_len; 6290 ctsio->kern_total_len = param_len; 6291 ctsio->kern_data_resid = 0; 6292 ctsio->kern_rel_offset = 0; 6293 ctsio->kern_sg_entries = 0; 6294 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6295 ctsio->be_move_done = ctl_config_move_done; 6296 ctl_datamove((union ctl_io *)ctsio); 6297 6298 return (CTL_RETVAL_COMPLETE); 6299 } 6300 6301 switch (ctsio->cdb[0]) { 6302 case MODE_SELECT_6: { 6303 struct scsi_mode_header_6 *mh6; 6304 6305 mh6 = (struct scsi_mode_header_6 *)ctsio->kern_data_ptr; 6306 bd_len = mh6->blk_desc_len; 6307 break; 6308 } 6309 case MODE_SELECT_10: { 6310 struct scsi_mode_header_10 *mh10; 6311 6312 mh10 = (struct scsi_mode_header_10 *)ctsio->kern_data_ptr; 6313 bd_len = scsi_2btoul(mh10->blk_desc_len); 6314 break; 6315 } 6316 default: 6317 panic("%s: Invalid CDB type %#x", __func__, ctsio->cdb[0]); 6318 } 6319 6320 if (param_len < (header_size + bd_len)) { 6321 free(ctsio->kern_data_ptr, M_CTL); 6322 ctl_set_param_len_error(ctsio); 6323 ctl_done((union ctl_io *)ctsio); 6324 return (CTL_RETVAL_COMPLETE); 6325 } 6326 6327 /* 6328 * Set the IO_CONT flag, so that if this I/O gets passed to 6329 * ctl_config_write_done(), it'll get passed back to 6330 * ctl_do_mode_select() for further processing, or completion if 6331 * we're all done. 6332 */ 6333 ctsio->io_hdr.flags |= CTL_FLAG_IO_CONT; 6334 ctsio->io_cont = ctl_do_mode_select; 6335 6336 modepage_info = (union ctl_modepage_info *) 6337 ctsio->io_hdr.ctl_private[CTL_PRIV_MODEPAGE].bytes; 6338 memset(modepage_info, 0, sizeof(*modepage_info)); 6339 modepage_info->header.len_left = param_len - header_size - bd_len; 6340 modepage_info->header.len_used = header_size + bd_len; 6341 6342 return (ctl_do_mode_select((union ctl_io *)ctsio)); 6343} 6344 6345int 6346ctl_mode_sense(struct ctl_scsiio *ctsio) 6347{ 6348 struct ctl_lun *lun; 6349 int pc, page_code, dbd, llba, subpage; 6350 int alloc_len, page_len, header_len, total_len; 6351 struct scsi_mode_block_descr *block_desc; 6352 struct ctl_page_index *page_index; 6353 6354 dbd = 0; 6355 llba = 0; 6356 block_desc = NULL; 6357 6358 CTL_DEBUG_PRINT(("ctl_mode_sense\n")); 6359 6360 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6361 switch (ctsio->cdb[0]) { 6362 case MODE_SENSE_6: { 6363 struct scsi_mode_sense_6 *cdb; 6364 6365 cdb = (struct scsi_mode_sense_6 *)ctsio->cdb; 6366 6367 header_len = sizeof(struct scsi_mode_hdr_6); 6368 if (cdb->byte2 & SMS_DBD) 6369 dbd = 1; 6370 else 6371 header_len += sizeof(struct scsi_mode_block_descr); 6372 6373 pc = (cdb->page & SMS_PAGE_CTRL_MASK) >> 6; 6374 page_code = cdb->page & SMS_PAGE_CODE; 6375 subpage = cdb->subpage; 6376 alloc_len = cdb->length; 6377 break; 6378 } 6379 case MODE_SENSE_10: { 6380 struct scsi_mode_sense_10 *cdb; 6381 6382 cdb = (struct scsi_mode_sense_10 *)ctsio->cdb; 6383 6384 header_len = sizeof(struct scsi_mode_hdr_10); 6385 6386 if (cdb->byte2 & SMS_DBD) 6387 dbd = 1; 6388 else 6389 header_len += sizeof(struct scsi_mode_block_descr); 6390 if (cdb->byte2 & SMS10_LLBAA) 6391 llba = 1; 6392 pc = (cdb->page & SMS_PAGE_CTRL_MASK) >> 6; 6393 page_code = cdb->page & SMS_PAGE_CODE; 6394 subpage = cdb->subpage; 6395 alloc_len = scsi_2btoul(cdb->length); 6396 break; 6397 } 6398 default: 6399 ctl_set_invalid_opcode(ctsio); 6400 ctl_done((union ctl_io *)ctsio); 6401 return (CTL_RETVAL_COMPLETE); 6402 break; /* NOTREACHED */ 6403 } 6404 6405 /* 6406 * We have to make a first pass through to calculate the size of 6407 * the pages that match the user's query. Then we allocate enough 6408 * memory to hold it, and actually copy the data into the buffer. 6409 */ 6410 switch (page_code) { 6411 case SMS_ALL_PAGES_PAGE: { 6412 u_int i; 6413 6414 page_len = 0; 6415 6416 /* 6417 * At the moment, values other than 0 and 0xff here are 6418 * reserved according to SPC-3. 6419 */ 6420 if ((subpage != SMS_SUBPAGE_PAGE_0) 6421 && (subpage != SMS_SUBPAGE_ALL)) { 6422 ctl_set_invalid_field(ctsio, 6423 /*sks_valid*/ 1, 6424 /*command*/ 1, 6425 /*field*/ 3, 6426 /*bit_valid*/ 0, 6427 /*bit*/ 0); 6428 ctl_done((union ctl_io *)ctsio); 6429 return (CTL_RETVAL_COMPLETE); 6430 } 6431 6432 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6433 page_index = &lun->mode_pages.index[i]; 6434 6435 /* Make sure the page is supported for this dev type */ 6436 if (lun->be_lun->lun_type == T_DIRECT && 6437 (page_index->page_flags & CTL_PAGE_FLAG_DIRECT) == 0) 6438 continue; 6439 if (lun->be_lun->lun_type == T_PROCESSOR && 6440 (page_index->page_flags & CTL_PAGE_FLAG_PROC) == 0) 6441 continue; 6442 if (lun->be_lun->lun_type == T_CDROM && 6443 (page_index->page_flags & CTL_PAGE_FLAG_CDROM) == 0) 6444 continue; 6445 6446 /* 6447 * We don't use this subpage if the user didn't 6448 * request all subpages. 6449 */ 6450 if ((page_index->subpage != 0) 6451 && (subpage == SMS_SUBPAGE_PAGE_0)) 6452 continue; 6453 6454#if 0 6455 printf("found page %#x len %d\n", 6456 page_index->page_code & SMPH_PC_MASK, 6457 page_index->page_len); 6458#endif 6459 page_len += page_index->page_len; 6460 } 6461 break; 6462 } 6463 default: { 6464 u_int i; 6465 6466 page_len = 0; 6467 6468 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6469 page_index = &lun->mode_pages.index[i]; 6470 6471 /* Make sure the page is supported for this dev type */ 6472 if (lun->be_lun->lun_type == T_DIRECT && 6473 (page_index->page_flags & CTL_PAGE_FLAG_DIRECT) == 0) 6474 continue; 6475 if (lun->be_lun->lun_type == T_PROCESSOR && 6476 (page_index->page_flags & CTL_PAGE_FLAG_PROC) == 0) 6477 continue; 6478 if (lun->be_lun->lun_type == T_CDROM && 6479 (page_index->page_flags & CTL_PAGE_FLAG_CDROM) == 0) 6480 continue; 6481 6482 /* Look for the right page code */ 6483 if ((page_index->page_code & SMPH_PC_MASK) != page_code) 6484 continue; 6485 6486 /* Look for the right subpage or the subpage wildcard*/ 6487 if ((page_index->subpage != subpage) 6488 && (subpage != SMS_SUBPAGE_ALL)) 6489 continue; 6490 6491#if 0 6492 printf("found page %#x len %d\n", 6493 page_index->page_code & SMPH_PC_MASK, 6494 page_index->page_len); 6495#endif 6496 6497 page_len += page_index->page_len; 6498 } 6499 6500 if (page_len == 0) { 6501 ctl_set_invalid_field(ctsio, 6502 /*sks_valid*/ 1, 6503 /*command*/ 1, 6504 /*field*/ 2, 6505 /*bit_valid*/ 1, 6506 /*bit*/ 5); 6507 ctl_done((union ctl_io *)ctsio); 6508 return (CTL_RETVAL_COMPLETE); 6509 } 6510 break; 6511 } 6512 } 6513 6514 total_len = header_len + page_len; 6515#if 0 6516 printf("header_len = %d, page_len = %d, total_len = %d\n", 6517 header_len, page_len, total_len); 6518#endif 6519 6520 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 6521 ctsio->kern_sg_entries = 0; 6522 ctsio->kern_data_resid = 0; 6523 ctsio->kern_rel_offset = 0; 6524 if (total_len < alloc_len) { 6525 ctsio->residual = alloc_len - total_len; 6526 ctsio->kern_data_len = total_len; 6527 ctsio->kern_total_len = total_len; 6528 } else { 6529 ctsio->residual = 0; 6530 ctsio->kern_data_len = alloc_len; 6531 ctsio->kern_total_len = alloc_len; 6532 } 6533 6534 switch (ctsio->cdb[0]) { 6535 case MODE_SENSE_6: { 6536 struct scsi_mode_hdr_6 *header; 6537 6538 header = (struct scsi_mode_hdr_6 *)ctsio->kern_data_ptr; 6539 6540 header->datalen = MIN(total_len - 1, 254); 6541 if (lun->be_lun->lun_type == T_DIRECT) { 6542 header->dev_specific = 0x10; /* DPOFUA */ 6543 if ((lun->be_lun->flags & CTL_LUN_FLAG_READONLY) || 6544 (lun->mode_pages.control_page[CTL_PAGE_CURRENT] 6545 .eca_and_aen & SCP_SWP) != 0) 6546 header->dev_specific |= 0x80; /* WP */ 6547 } 6548 if (dbd) 6549 header->block_descr_len = 0; 6550 else 6551 header->block_descr_len = 6552 sizeof(struct scsi_mode_block_descr); 6553 block_desc = (struct scsi_mode_block_descr *)&header[1]; 6554 break; 6555 } 6556 case MODE_SENSE_10: { 6557 struct scsi_mode_hdr_10 *header; 6558 int datalen; 6559 6560 header = (struct scsi_mode_hdr_10 *)ctsio->kern_data_ptr; 6561 6562 datalen = MIN(total_len - 2, 65533); 6563 scsi_ulto2b(datalen, header->datalen); 6564 if (lun->be_lun->lun_type == T_DIRECT) { 6565 header->dev_specific = 0x10; /* DPOFUA */ 6566 if ((lun->be_lun->flags & CTL_LUN_FLAG_READONLY) || 6567 (lun->mode_pages.control_page[CTL_PAGE_CURRENT] 6568 .eca_and_aen & SCP_SWP) != 0) 6569 header->dev_specific |= 0x80; /* WP */ 6570 } 6571 if (dbd) 6572 scsi_ulto2b(0, header->block_descr_len); 6573 else 6574 scsi_ulto2b(sizeof(struct scsi_mode_block_descr), 6575 header->block_descr_len); 6576 block_desc = (struct scsi_mode_block_descr *)&header[1]; 6577 break; 6578 } 6579 default: 6580 panic("%s: Invalid CDB type %#x", __func__, ctsio->cdb[0]); 6581 } 6582 6583 /* 6584 * If we've got a disk, use its blocksize in the block 6585 * descriptor. Otherwise, just set it to 0. 6586 */ 6587 if (dbd == 0) { 6588 if (lun->be_lun->lun_type == T_DIRECT) 6589 scsi_ulto3b(lun->be_lun->blocksize, 6590 block_desc->block_len); 6591 else 6592 scsi_ulto3b(0, block_desc->block_len); 6593 } 6594 6595 switch (page_code) { 6596 case SMS_ALL_PAGES_PAGE: { 6597 int i, data_used; 6598 6599 data_used = header_len; 6600 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6601 struct ctl_page_index *page_index; 6602 6603 page_index = &lun->mode_pages.index[i]; 6604 if (lun->be_lun->lun_type == T_DIRECT && 6605 (page_index->page_flags & CTL_PAGE_FLAG_DIRECT) == 0) 6606 continue; 6607 if (lun->be_lun->lun_type == T_PROCESSOR && 6608 (page_index->page_flags & CTL_PAGE_FLAG_PROC) == 0) 6609 continue; 6610 if (lun->be_lun->lun_type == T_CDROM && 6611 (page_index->page_flags & CTL_PAGE_FLAG_CDROM) == 0) 6612 continue; 6613 6614 /* 6615 * We don't use this subpage if the user didn't 6616 * request all subpages. We already checked (above) 6617 * to make sure the user only specified a subpage 6618 * of 0 or 0xff in the SMS_ALL_PAGES_PAGE case. 6619 */ 6620 if ((page_index->subpage != 0) 6621 && (subpage == SMS_SUBPAGE_PAGE_0)) 6622 continue; 6623 6624 /* 6625 * Call the handler, if it exists, to update the 6626 * page to the latest values. 6627 */ 6628 if (page_index->sense_handler != NULL) 6629 page_index->sense_handler(ctsio, page_index,pc); 6630 6631 memcpy(ctsio->kern_data_ptr + data_used, 6632 page_index->page_data + 6633 (page_index->page_len * pc), 6634 page_index->page_len); 6635 data_used += page_index->page_len; 6636 } 6637 break; 6638 } 6639 default: { 6640 int i, data_used; 6641 6642 data_used = header_len; 6643 6644 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6645 struct ctl_page_index *page_index; 6646 6647 page_index = &lun->mode_pages.index[i]; 6648 6649 /* Look for the right page code */ 6650 if ((page_index->page_code & SMPH_PC_MASK) != page_code) 6651 continue; 6652 6653 /* Look for the right subpage or the subpage wildcard*/ 6654 if ((page_index->subpage != subpage) 6655 && (subpage != SMS_SUBPAGE_ALL)) 6656 continue; 6657 6658 /* Make sure the page is supported for this dev type */ 6659 if (lun->be_lun->lun_type == T_DIRECT && 6660 (page_index->page_flags & CTL_PAGE_FLAG_DIRECT) == 0) 6661 continue; 6662 if (lun->be_lun->lun_type == T_PROCESSOR && 6663 (page_index->page_flags & CTL_PAGE_FLAG_PROC) == 0) 6664 continue; 6665 if (lun->be_lun->lun_type == T_CDROM && 6666 (page_index->page_flags & CTL_PAGE_FLAG_CDROM) == 0) 6667 continue; 6668 6669 /* 6670 * Call the handler, if it exists, to update the 6671 * page to the latest values. 6672 */ 6673 if (page_index->sense_handler != NULL) 6674 page_index->sense_handler(ctsio, page_index,pc); 6675 6676 memcpy(ctsio->kern_data_ptr + data_used, 6677 page_index->page_data + 6678 (page_index->page_len * pc), 6679 page_index->page_len); 6680 data_used += page_index->page_len; 6681 } 6682 break; 6683 } 6684 } 6685 6686 ctl_set_success(ctsio); 6687 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6688 ctsio->be_move_done = ctl_config_move_done; 6689 ctl_datamove((union ctl_io *)ctsio); 6690 return (CTL_RETVAL_COMPLETE); 6691} 6692 6693int 6694ctl_lbp_log_sense_handler(struct ctl_scsiio *ctsio, 6695 struct ctl_page_index *page_index, 6696 int pc) 6697{ 6698 struct ctl_lun *lun; 6699 struct scsi_log_param_header *phdr; 6700 uint8_t *data; 6701 uint64_t val; 6702 6703 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6704 data = page_index->page_data; 6705 6706 if (lun->backend->lun_attr != NULL && 6707 (val = lun->backend->lun_attr(lun->be_lun->be_lun, "blocksavail")) 6708 != UINT64_MAX) { 6709 phdr = (struct scsi_log_param_header *)data; 6710 scsi_ulto2b(0x0001, phdr->param_code); 6711 phdr->param_control = SLP_LBIN | SLP_LP; 6712 phdr->param_len = 8; 6713 data = (uint8_t *)(phdr + 1); 6714 scsi_ulto4b(val >> CTL_LBP_EXPONENT, data); 6715 data[4] = 0x02; /* per-pool */ 6716 data += phdr->param_len; 6717 } 6718 6719 if (lun->backend->lun_attr != NULL && 6720 (val = lun->backend->lun_attr(lun->be_lun->be_lun, "blocksused")) 6721 != UINT64_MAX) { 6722 phdr = (struct scsi_log_param_header *)data; 6723 scsi_ulto2b(0x0002, phdr->param_code); 6724 phdr->param_control = SLP_LBIN | SLP_LP; 6725 phdr->param_len = 8; 6726 data = (uint8_t *)(phdr + 1); 6727 scsi_ulto4b(val >> CTL_LBP_EXPONENT, data); 6728 data[4] = 0x01; /* per-LUN */ 6729 data += phdr->param_len; 6730 } 6731 6732 if (lun->backend->lun_attr != NULL && 6733 (val = lun->backend->lun_attr(lun->be_lun->be_lun, "poolblocksavail")) 6734 != UINT64_MAX) { 6735 phdr = (struct scsi_log_param_header *)data; 6736 scsi_ulto2b(0x00f1, phdr->param_code); 6737 phdr->param_control = SLP_LBIN | SLP_LP; 6738 phdr->param_len = 8; 6739 data = (uint8_t *)(phdr + 1); 6740 scsi_ulto4b(val >> CTL_LBP_EXPONENT, data); 6741 data[4] = 0x02; /* per-pool */ 6742 data += phdr->param_len; 6743 } 6744 6745 if (lun->backend->lun_attr != NULL && 6746 (val = lun->backend->lun_attr(lun->be_lun->be_lun, "poolblocksused")) 6747 != UINT64_MAX) { 6748 phdr = (struct scsi_log_param_header *)data; 6749 scsi_ulto2b(0x00f2, phdr->param_code); 6750 phdr->param_control = SLP_LBIN | SLP_LP; 6751 phdr->param_len = 8; 6752 data = (uint8_t *)(phdr + 1); 6753 scsi_ulto4b(val >> CTL_LBP_EXPONENT, data); 6754 data[4] = 0x02; /* per-pool */ 6755 data += phdr->param_len; 6756 } 6757 6758 page_index->page_len = data - page_index->page_data; 6759 return (0); 6760} 6761 6762int 6763ctl_sap_log_sense_handler(struct ctl_scsiio *ctsio, 6764 struct ctl_page_index *page_index, 6765 int pc) 6766{ 6767 struct ctl_lun *lun; 6768 struct stat_page *data; 6769 uint64_t rn, wn, rb, wb; 6770 struct bintime rt, wt; 6771 int i; 6772 6773 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6774 data = (struct stat_page *)page_index->page_data; 6775 6776 scsi_ulto2b(SLP_SAP, data->sap.hdr.param_code); 6777 data->sap.hdr.param_control = SLP_LBIN; 6778 data->sap.hdr.param_len = sizeof(struct scsi_log_stat_and_perf) - 6779 sizeof(struct scsi_log_param_header); 6780 rn = wn = rb = wb = 0; 6781 bintime_clear(&rt); 6782 bintime_clear(&wt); 6783 for (i = 0; i < CTL_MAX_PORTS; i++) { 6784 rn += lun->stats.ports[i].operations[CTL_STATS_READ]; 6785 wn += lun->stats.ports[i].operations[CTL_STATS_WRITE]; 6786 rb += lun->stats.ports[i].bytes[CTL_STATS_READ]; 6787 wb += lun->stats.ports[i].bytes[CTL_STATS_WRITE]; 6788 bintime_add(&rt, &lun->stats.ports[i].time[CTL_STATS_READ]); 6789 bintime_add(&wt, &lun->stats.ports[i].time[CTL_STATS_WRITE]); 6790 } 6791 scsi_u64to8b(rn, data->sap.read_num); 6792 scsi_u64to8b(wn, data->sap.write_num); 6793 if (lun->stats.blocksize > 0) { 6794 scsi_u64to8b(wb / lun->stats.blocksize, 6795 data->sap.recvieved_lba); 6796 scsi_u64to8b(rb / lun->stats.blocksize, 6797 data->sap.transmitted_lba); 6798 } 6799 scsi_u64to8b((uint64_t)rt.sec * 1000 + rt.frac / (UINT64_MAX / 1000), 6800 data->sap.read_int); 6801 scsi_u64to8b((uint64_t)wt.sec * 1000 + wt.frac / (UINT64_MAX / 1000), 6802 data->sap.write_int); 6803 scsi_u64to8b(0, data->sap.weighted_num); 6804 scsi_u64to8b(0, data->sap.weighted_int); 6805 scsi_ulto2b(SLP_IT, data->it.hdr.param_code); 6806 data->it.hdr.param_control = SLP_LBIN; 6807 data->it.hdr.param_len = sizeof(struct scsi_log_idle_time) - 6808 sizeof(struct scsi_log_param_header); 6809#ifdef CTL_TIME_IO 6810 scsi_u64to8b(lun->idle_time / SBT_1MS, data->it.idle_int); 6811#endif 6812 scsi_ulto2b(SLP_TI, data->ti.hdr.param_code); 6813 data->it.hdr.param_control = SLP_LBIN; 6814 data->ti.hdr.param_len = sizeof(struct scsi_log_time_interval) - 6815 sizeof(struct scsi_log_param_header); 6816 scsi_ulto4b(3, data->ti.exponent); 6817 scsi_ulto4b(1, data->ti.integer); 6818 6819 page_index->page_len = sizeof(*data); 6820 return (0); 6821} 6822 6823int 6824ctl_log_sense(struct ctl_scsiio *ctsio) 6825{ 6826 struct ctl_lun *lun; 6827 int i, pc, page_code, subpage; 6828 int alloc_len, total_len; 6829 struct ctl_page_index *page_index; 6830 struct scsi_log_sense *cdb; 6831 struct scsi_log_header *header; 6832 6833 CTL_DEBUG_PRINT(("ctl_log_sense\n")); 6834 6835 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6836 cdb = (struct scsi_log_sense *)ctsio->cdb; 6837 pc = (cdb->page & SLS_PAGE_CTRL_MASK) >> 6; 6838 page_code = cdb->page & SLS_PAGE_CODE; 6839 subpage = cdb->subpage; 6840 alloc_len = scsi_2btoul(cdb->length); 6841 6842 page_index = NULL; 6843 for (i = 0; i < CTL_NUM_LOG_PAGES; i++) { 6844 page_index = &lun->log_pages.index[i]; 6845 6846 /* Look for the right page code */ 6847 if ((page_index->page_code & SL_PAGE_CODE) != page_code) 6848 continue; 6849 6850 /* Look for the right subpage or the subpage wildcard*/ 6851 if (page_index->subpage != subpage) 6852 continue; 6853 6854 break; 6855 } 6856 if (i >= CTL_NUM_LOG_PAGES) { 6857 ctl_set_invalid_field(ctsio, 6858 /*sks_valid*/ 1, 6859 /*command*/ 1, 6860 /*field*/ 2, 6861 /*bit_valid*/ 0, 6862 /*bit*/ 0); 6863 ctl_done((union ctl_io *)ctsio); 6864 return (CTL_RETVAL_COMPLETE); 6865 } 6866 6867 total_len = sizeof(struct scsi_log_header) + page_index->page_len; 6868 6869 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 6870 ctsio->kern_sg_entries = 0; 6871 ctsio->kern_data_resid = 0; 6872 ctsio->kern_rel_offset = 0; 6873 if (total_len < alloc_len) { 6874 ctsio->residual = alloc_len - total_len; 6875 ctsio->kern_data_len = total_len; 6876 ctsio->kern_total_len = total_len; 6877 } else { 6878 ctsio->residual = 0; 6879 ctsio->kern_data_len = alloc_len; 6880 ctsio->kern_total_len = alloc_len; 6881 } 6882 6883 header = (struct scsi_log_header *)ctsio->kern_data_ptr; 6884 header->page = page_index->page_code; 6885 if (page_index->page_code == SLS_LOGICAL_BLOCK_PROVISIONING) 6886 header->page |= SL_DS; 6887 if (page_index->subpage) { 6888 header->page |= SL_SPF; 6889 header->subpage = page_index->subpage; 6890 } 6891 scsi_ulto2b(page_index->page_len, header->datalen); 6892 6893 /* 6894 * Call the handler, if it exists, to update the 6895 * page to the latest values. 6896 */ 6897 if (page_index->sense_handler != NULL) 6898 page_index->sense_handler(ctsio, page_index, pc); 6899 6900 memcpy(header + 1, page_index->page_data, page_index->page_len); 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(struct ctl_scsiio *ctsio) 6911{ 6912 struct scsi_read_capacity *cdb; 6913 struct scsi_read_capacity_data *data; 6914 struct ctl_lun *lun; 6915 uint32_t lba; 6916 6917 CTL_DEBUG_PRINT(("ctl_read_capacity\n")); 6918 6919 cdb = (struct scsi_read_capacity *)ctsio->cdb; 6920 6921 lba = scsi_4btoul(cdb->addr); 6922 if (((cdb->pmi & SRC_PMI) == 0) 6923 && (lba != 0)) { 6924 ctl_set_invalid_field(/*ctsio*/ ctsio, 6925 /*sks_valid*/ 1, 6926 /*command*/ 1, 6927 /*field*/ 2, 6928 /*bit_valid*/ 0, 6929 /*bit*/ 0); 6930 ctl_done((union ctl_io *)ctsio); 6931 return (CTL_RETVAL_COMPLETE); 6932 } 6933 6934 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6935 6936 ctsio->kern_data_ptr = malloc(sizeof(*data), M_CTL, M_WAITOK | M_ZERO); 6937 data = (struct scsi_read_capacity_data *)ctsio->kern_data_ptr; 6938 ctsio->residual = 0; 6939 ctsio->kern_data_len = sizeof(*data); 6940 ctsio->kern_total_len = sizeof(*data); 6941 ctsio->kern_data_resid = 0; 6942 ctsio->kern_rel_offset = 0; 6943 ctsio->kern_sg_entries = 0; 6944 6945 /* 6946 * If the maximum LBA is greater than 0xfffffffe, the user must 6947 * issue a SERVICE ACTION IN (16) command, with the read capacity 6948 * serivce action set. 6949 */ 6950 if (lun->be_lun->maxlba > 0xfffffffe) 6951 scsi_ulto4b(0xffffffff, data->addr); 6952 else 6953 scsi_ulto4b(lun->be_lun->maxlba, data->addr); 6954 6955 /* 6956 * XXX KDM this may not be 512 bytes... 6957 */ 6958 scsi_ulto4b(lun->be_lun->blocksize, data->length); 6959 6960 ctl_set_success(ctsio); 6961 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6962 ctsio->be_move_done = ctl_config_move_done; 6963 ctl_datamove((union ctl_io *)ctsio); 6964 return (CTL_RETVAL_COMPLETE); 6965} 6966 6967int 6968ctl_read_capacity_16(struct ctl_scsiio *ctsio) 6969{ 6970 struct scsi_read_capacity_16 *cdb; 6971 struct scsi_read_capacity_data_long *data; 6972 struct ctl_lun *lun; 6973 uint64_t lba; 6974 uint32_t alloc_len; 6975 6976 CTL_DEBUG_PRINT(("ctl_read_capacity_16\n")); 6977 6978 cdb = (struct scsi_read_capacity_16 *)ctsio->cdb; 6979 6980 alloc_len = scsi_4btoul(cdb->alloc_len); 6981 lba = scsi_8btou64(cdb->addr); 6982 6983 if ((cdb->reladr & SRC16_PMI) 6984 && (lba != 0)) { 6985 ctl_set_invalid_field(/*ctsio*/ ctsio, 6986 /*sks_valid*/ 1, 6987 /*command*/ 1, 6988 /*field*/ 2, 6989 /*bit_valid*/ 0, 6990 /*bit*/ 0); 6991 ctl_done((union ctl_io *)ctsio); 6992 return (CTL_RETVAL_COMPLETE); 6993 } 6994 6995 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6996 6997 ctsio->kern_data_ptr = malloc(sizeof(*data), M_CTL, M_WAITOK | M_ZERO); 6998 data = (struct scsi_read_capacity_data_long *)ctsio->kern_data_ptr; 6999 7000 if (sizeof(*data) < alloc_len) { 7001 ctsio->residual = alloc_len - sizeof(*data); 7002 ctsio->kern_data_len = sizeof(*data); 7003 ctsio->kern_total_len = sizeof(*data); 7004 } else { 7005 ctsio->residual = 0; 7006 ctsio->kern_data_len = alloc_len; 7007 ctsio->kern_total_len = alloc_len; 7008 } 7009 ctsio->kern_data_resid = 0; 7010 ctsio->kern_rel_offset = 0; 7011 ctsio->kern_sg_entries = 0; 7012 7013 scsi_u64to8b(lun->be_lun->maxlba, data->addr); 7014 /* XXX KDM this may not be 512 bytes... */ 7015 scsi_ulto4b(lun->be_lun->blocksize, data->length); 7016 data->prot_lbppbe = lun->be_lun->pblockexp & SRC16_LBPPBE; 7017 scsi_ulto2b(lun->be_lun->pblockoff & SRC16_LALBA_A, data->lalba_lbp); 7018 if (lun->be_lun->flags & CTL_LUN_FLAG_UNMAP) 7019 data->lalba_lbp[0] |= SRC16_LBPME | SRC16_LBPRZ; 7020 7021 ctl_set_success(ctsio); 7022 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7023 ctsio->be_move_done = ctl_config_move_done; 7024 ctl_datamove((union ctl_io *)ctsio); 7025 return (CTL_RETVAL_COMPLETE); 7026} 7027 7028int 7029ctl_get_lba_status(struct ctl_scsiio *ctsio) 7030{ 7031 struct scsi_get_lba_status *cdb; 7032 struct scsi_get_lba_status_data *data; 7033 struct ctl_lun *lun; 7034 struct ctl_lba_len_flags *lbalen; 7035 uint64_t lba; 7036 uint32_t alloc_len, total_len; 7037 int retval; 7038 7039 CTL_DEBUG_PRINT(("ctl_get_lba_status\n")); 7040 7041 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7042 cdb = (struct scsi_get_lba_status *)ctsio->cdb; 7043 lba = scsi_8btou64(cdb->addr); 7044 alloc_len = scsi_4btoul(cdb->alloc_len); 7045 7046 if (lba > lun->be_lun->maxlba) { 7047 ctl_set_lba_out_of_range(ctsio); 7048 ctl_done((union ctl_io *)ctsio); 7049 return (CTL_RETVAL_COMPLETE); 7050 } 7051 7052 total_len = sizeof(*data) + sizeof(data->descr[0]); 7053 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7054 data = (struct scsi_get_lba_status_data *)ctsio->kern_data_ptr; 7055 7056 if (total_len < alloc_len) { 7057 ctsio->residual = alloc_len - total_len; 7058 ctsio->kern_data_len = total_len; 7059 ctsio->kern_total_len = total_len; 7060 } else { 7061 ctsio->residual = 0; 7062 ctsio->kern_data_len = alloc_len; 7063 ctsio->kern_total_len = alloc_len; 7064 } 7065 ctsio->kern_data_resid = 0; 7066 ctsio->kern_rel_offset = 0; 7067 ctsio->kern_sg_entries = 0; 7068 7069 /* Fill dummy data in case backend can't tell anything. */ 7070 scsi_ulto4b(4 + sizeof(data->descr[0]), data->length); 7071 scsi_u64to8b(lba, data->descr[0].addr); 7072 scsi_ulto4b(MIN(UINT32_MAX, lun->be_lun->maxlba + 1 - lba), 7073 data->descr[0].length); 7074 data->descr[0].status = 0; /* Mapped or unknown. */ 7075 7076 ctl_set_success(ctsio); 7077 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7078 ctsio->be_move_done = ctl_config_move_done; 7079 7080 lbalen = (struct ctl_lba_len_flags *)&ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 7081 lbalen->lba = lba; 7082 lbalen->len = total_len; 7083 lbalen->flags = 0; 7084 retval = lun->backend->config_read((union ctl_io *)ctsio); 7085 return (CTL_RETVAL_COMPLETE); 7086} 7087 7088int 7089ctl_read_defect(struct ctl_scsiio *ctsio) 7090{ 7091 struct scsi_read_defect_data_10 *ccb10; 7092 struct scsi_read_defect_data_12 *ccb12; 7093 struct scsi_read_defect_data_hdr_10 *data10; 7094 struct scsi_read_defect_data_hdr_12 *data12; 7095 uint32_t alloc_len, data_len; 7096 uint8_t format; 7097 7098 CTL_DEBUG_PRINT(("ctl_read_defect\n")); 7099 7100 if (ctsio->cdb[0] == READ_DEFECT_DATA_10) { 7101 ccb10 = (struct scsi_read_defect_data_10 *)&ctsio->cdb; 7102 format = ccb10->format; 7103 alloc_len = scsi_2btoul(ccb10->alloc_length); 7104 data_len = sizeof(*data10); 7105 } else { 7106 ccb12 = (struct scsi_read_defect_data_12 *)&ctsio->cdb; 7107 format = ccb12->format; 7108 alloc_len = scsi_4btoul(ccb12->alloc_length); 7109 data_len = sizeof(*data12); 7110 } 7111 if (alloc_len == 0) { 7112 ctl_set_success(ctsio); 7113 ctl_done((union ctl_io *)ctsio); 7114 return (CTL_RETVAL_COMPLETE); 7115 } 7116 7117 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 7118 if (data_len < alloc_len) { 7119 ctsio->residual = alloc_len - data_len; 7120 ctsio->kern_data_len = data_len; 7121 ctsio->kern_total_len = data_len; 7122 } else { 7123 ctsio->residual = 0; 7124 ctsio->kern_data_len = alloc_len; 7125 ctsio->kern_total_len = alloc_len; 7126 } 7127 ctsio->kern_data_resid = 0; 7128 ctsio->kern_rel_offset = 0; 7129 ctsio->kern_sg_entries = 0; 7130 7131 if (ctsio->cdb[0] == READ_DEFECT_DATA_10) { 7132 data10 = (struct scsi_read_defect_data_hdr_10 *) 7133 ctsio->kern_data_ptr; 7134 data10->format = format; 7135 scsi_ulto2b(0, data10->length); 7136 } else { 7137 data12 = (struct scsi_read_defect_data_hdr_12 *) 7138 ctsio->kern_data_ptr; 7139 data12->format = format; 7140 scsi_ulto2b(0, data12->generation); 7141 scsi_ulto4b(0, data12->length); 7142 } 7143 7144 ctl_set_success(ctsio); 7145 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7146 ctsio->be_move_done = ctl_config_move_done; 7147 ctl_datamove((union ctl_io *)ctsio); 7148 return (CTL_RETVAL_COMPLETE); 7149} 7150 7151int 7152ctl_report_tagret_port_groups(struct ctl_scsiio *ctsio) 7153{ 7154 struct scsi_maintenance_in *cdb; 7155 int retval; 7156 int alloc_len, ext, total_len = 0, g, pc, pg, ts, os; 7157 int num_ha_groups, num_target_ports, shared_group; 7158 struct ctl_lun *lun; 7159 struct ctl_softc *softc; 7160 struct ctl_port *port; 7161 struct scsi_target_group_data *rtg_ptr; 7162 struct scsi_target_group_data_extended *rtg_ext_ptr; 7163 struct scsi_target_port_group_descriptor *tpg_desc; 7164 7165 CTL_DEBUG_PRINT(("ctl_report_tagret_port_groups\n")); 7166 7167 cdb = (struct scsi_maintenance_in *)ctsio->cdb; 7168 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7169 softc = lun->ctl_softc; 7170 7171 retval = CTL_RETVAL_COMPLETE; 7172 7173 switch (cdb->byte2 & STG_PDF_MASK) { 7174 case STG_PDF_LENGTH: 7175 ext = 0; 7176 break; 7177 case STG_PDF_EXTENDED: 7178 ext = 1; 7179 break; 7180 default: 7181 ctl_set_invalid_field(/*ctsio*/ ctsio, 7182 /*sks_valid*/ 1, 7183 /*command*/ 1, 7184 /*field*/ 2, 7185 /*bit_valid*/ 1, 7186 /*bit*/ 5); 7187 ctl_done((union ctl_io *)ctsio); 7188 return(retval); 7189 } 7190 7191 num_target_ports = 0; 7192 shared_group = (softc->is_single != 0); 7193 mtx_lock(&softc->ctl_lock); 7194 STAILQ_FOREACH(port, &softc->port_list, links) { 7195 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 7196 continue; 7197 if (ctl_lun_map_to_port(port, lun->lun) >= CTL_MAX_LUNS) 7198 continue; 7199 num_target_ports++; 7200 if (port->status & CTL_PORT_STATUS_HA_SHARED) 7201 shared_group = 1; 7202 } 7203 mtx_unlock(&softc->ctl_lock); 7204 num_ha_groups = (softc->is_single) ? 0 : NUM_HA_SHELVES; 7205 7206 if (ext) 7207 total_len = sizeof(struct scsi_target_group_data_extended); 7208 else 7209 total_len = sizeof(struct scsi_target_group_data); 7210 total_len += sizeof(struct scsi_target_port_group_descriptor) * 7211 (shared_group + num_ha_groups) + 7212 sizeof(struct scsi_target_port_descriptor) * num_target_ports; 7213 7214 alloc_len = scsi_4btoul(cdb->length); 7215 7216 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7217 7218 ctsio->kern_sg_entries = 0; 7219 7220 if (total_len < alloc_len) { 7221 ctsio->residual = alloc_len - total_len; 7222 ctsio->kern_data_len = total_len; 7223 ctsio->kern_total_len = total_len; 7224 } else { 7225 ctsio->residual = 0; 7226 ctsio->kern_data_len = alloc_len; 7227 ctsio->kern_total_len = alloc_len; 7228 } 7229 ctsio->kern_data_resid = 0; 7230 ctsio->kern_rel_offset = 0; 7231 7232 if (ext) { 7233 rtg_ext_ptr = (struct scsi_target_group_data_extended *) 7234 ctsio->kern_data_ptr; 7235 scsi_ulto4b(total_len - 4, rtg_ext_ptr->length); 7236 rtg_ext_ptr->format_type = 0x10; 7237 rtg_ext_ptr->implicit_transition_time = 0; 7238 tpg_desc = &rtg_ext_ptr->groups[0]; 7239 } else { 7240 rtg_ptr = (struct scsi_target_group_data *) 7241 ctsio->kern_data_ptr; 7242 scsi_ulto4b(total_len - 4, rtg_ptr->length); 7243 tpg_desc = &rtg_ptr->groups[0]; 7244 } 7245 7246 mtx_lock(&softc->ctl_lock); 7247 pg = softc->port_min / softc->port_cnt; 7248 if (lun->flags & (CTL_LUN_PRIMARY_SC | CTL_LUN_PEER_SC_PRIMARY)) { 7249 /* Some shelf is known to be primary. */ 7250 if (softc->ha_link == CTL_HA_LINK_OFFLINE) 7251 os = TPG_ASYMMETRIC_ACCESS_UNAVAILABLE; 7252 else if (softc->ha_link == CTL_HA_LINK_UNKNOWN) 7253 os = TPG_ASYMMETRIC_ACCESS_TRANSITIONING; 7254 else if (softc->ha_mode == CTL_HA_MODE_ACT_STBY) 7255 os = TPG_ASYMMETRIC_ACCESS_STANDBY; 7256 else 7257 os = TPG_ASYMMETRIC_ACCESS_NONOPTIMIZED; 7258 if (lun->flags & CTL_LUN_PRIMARY_SC) { 7259 ts = TPG_ASYMMETRIC_ACCESS_OPTIMIZED; 7260 } else { 7261 ts = os; 7262 os = TPG_ASYMMETRIC_ACCESS_OPTIMIZED; 7263 } 7264 } else { 7265 /* No known primary shelf. */ 7266 if (softc->ha_link == CTL_HA_LINK_OFFLINE) { 7267 ts = TPG_ASYMMETRIC_ACCESS_UNAVAILABLE; 7268 os = TPG_ASYMMETRIC_ACCESS_OPTIMIZED; 7269 } else if (softc->ha_link == CTL_HA_LINK_UNKNOWN) { 7270 ts = TPG_ASYMMETRIC_ACCESS_TRANSITIONING; 7271 os = TPG_ASYMMETRIC_ACCESS_OPTIMIZED; 7272 } else { 7273 ts = os = TPG_ASYMMETRIC_ACCESS_TRANSITIONING; 7274 } 7275 } 7276 if (shared_group) { 7277 tpg_desc->pref_state = ts; 7278 tpg_desc->support = TPG_AO_SUP | TPG_AN_SUP | TPG_S_SUP | 7279 TPG_U_SUP | TPG_T_SUP; 7280 scsi_ulto2b(1, tpg_desc->target_port_group); 7281 tpg_desc->status = TPG_IMPLICIT; 7282 pc = 0; 7283 STAILQ_FOREACH(port, &softc->port_list, links) { 7284 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 7285 continue; 7286 if (!softc->is_single && 7287 (port->status & CTL_PORT_STATUS_HA_SHARED) == 0) 7288 continue; 7289 if (ctl_lun_map_to_port(port, lun->lun) >= CTL_MAX_LUNS) 7290 continue; 7291 scsi_ulto2b(port->targ_port, tpg_desc->descriptors[pc]. 7292 relative_target_port_identifier); 7293 pc++; 7294 } 7295 tpg_desc->target_port_count = pc; 7296 tpg_desc = (struct scsi_target_port_group_descriptor *) 7297 &tpg_desc->descriptors[pc]; 7298 } 7299 for (g = 0; g < num_ha_groups; g++) { 7300 tpg_desc->pref_state = (g == pg) ? ts : os; 7301 tpg_desc->support = TPG_AO_SUP | TPG_AN_SUP | TPG_S_SUP | 7302 TPG_U_SUP | TPG_T_SUP; 7303 scsi_ulto2b(2 + g, tpg_desc->target_port_group); 7304 tpg_desc->status = TPG_IMPLICIT; 7305 pc = 0; 7306 STAILQ_FOREACH(port, &softc->port_list, links) { 7307 if (port->targ_port < g * softc->port_cnt || 7308 port->targ_port >= (g + 1) * softc->port_cnt) 7309 continue; 7310 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 7311 continue; 7312 if (port->status & CTL_PORT_STATUS_HA_SHARED) 7313 continue; 7314 if (ctl_lun_map_to_port(port, lun->lun) >= CTL_MAX_LUNS) 7315 continue; 7316 scsi_ulto2b(port->targ_port, tpg_desc->descriptors[pc]. 7317 relative_target_port_identifier); 7318 pc++; 7319 } 7320 tpg_desc->target_port_count = pc; 7321 tpg_desc = (struct scsi_target_port_group_descriptor *) 7322 &tpg_desc->descriptors[pc]; 7323 } 7324 mtx_unlock(&softc->ctl_lock); 7325 7326 ctl_set_success(ctsio); 7327 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7328 ctsio->be_move_done = ctl_config_move_done; 7329 ctl_datamove((union ctl_io *)ctsio); 7330 return(retval); 7331} 7332 7333int 7334ctl_report_supported_opcodes(struct ctl_scsiio *ctsio) 7335{ 7336 struct ctl_lun *lun; 7337 struct scsi_report_supported_opcodes *cdb; 7338 const struct ctl_cmd_entry *entry, *sentry; 7339 struct scsi_report_supported_opcodes_all *all; 7340 struct scsi_report_supported_opcodes_descr *descr; 7341 struct scsi_report_supported_opcodes_one *one; 7342 int retval; 7343 int alloc_len, total_len; 7344 int opcode, service_action, i, j, num; 7345 7346 CTL_DEBUG_PRINT(("ctl_report_supported_opcodes\n")); 7347 7348 cdb = (struct scsi_report_supported_opcodes *)ctsio->cdb; 7349 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7350 7351 retval = CTL_RETVAL_COMPLETE; 7352 7353 opcode = cdb->requested_opcode; 7354 service_action = scsi_2btoul(cdb->requested_service_action); 7355 switch (cdb->options & RSO_OPTIONS_MASK) { 7356 case RSO_OPTIONS_ALL: 7357 num = 0; 7358 for (i = 0; i < 256; i++) { 7359 entry = &ctl_cmd_table[i]; 7360 if (entry->flags & CTL_CMD_FLAG_SA5) { 7361 for (j = 0; j < 32; j++) { 7362 sentry = &((const struct ctl_cmd_entry *) 7363 entry->execute)[j]; 7364 if (ctl_cmd_applicable( 7365 lun->be_lun->lun_type, sentry)) 7366 num++; 7367 } 7368 } else { 7369 if (ctl_cmd_applicable(lun->be_lun->lun_type, 7370 entry)) 7371 num++; 7372 } 7373 } 7374 total_len = sizeof(struct scsi_report_supported_opcodes_all) + 7375 num * sizeof(struct scsi_report_supported_opcodes_descr); 7376 break; 7377 case RSO_OPTIONS_OC: 7378 if (ctl_cmd_table[opcode].flags & CTL_CMD_FLAG_SA5) { 7379 ctl_set_invalid_field(/*ctsio*/ ctsio, 7380 /*sks_valid*/ 1, 7381 /*command*/ 1, 7382 /*field*/ 2, 7383 /*bit_valid*/ 1, 7384 /*bit*/ 2); 7385 ctl_done((union ctl_io *)ctsio); 7386 return (CTL_RETVAL_COMPLETE); 7387 } 7388 total_len = sizeof(struct scsi_report_supported_opcodes_one) + 32; 7389 break; 7390 case RSO_OPTIONS_OC_SA: 7391 if ((ctl_cmd_table[opcode].flags & CTL_CMD_FLAG_SA5) == 0 || 7392 service_action >= 32) { 7393 ctl_set_invalid_field(/*ctsio*/ ctsio, 7394 /*sks_valid*/ 1, 7395 /*command*/ 1, 7396 /*field*/ 2, 7397 /*bit_valid*/ 1, 7398 /*bit*/ 2); 7399 ctl_done((union ctl_io *)ctsio); 7400 return (CTL_RETVAL_COMPLETE); 7401 } 7402 total_len = sizeof(struct scsi_report_supported_opcodes_one) + 32; 7403 break; 7404 default: 7405 ctl_set_invalid_field(/*ctsio*/ ctsio, 7406 /*sks_valid*/ 1, 7407 /*command*/ 1, 7408 /*field*/ 2, 7409 /*bit_valid*/ 1, 7410 /*bit*/ 2); 7411 ctl_done((union ctl_io *)ctsio); 7412 return (CTL_RETVAL_COMPLETE); 7413 } 7414 7415 alloc_len = scsi_4btoul(cdb->length); 7416 7417 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7418 7419 ctsio->kern_sg_entries = 0; 7420 7421 if (total_len < alloc_len) { 7422 ctsio->residual = alloc_len - total_len; 7423 ctsio->kern_data_len = total_len; 7424 ctsio->kern_total_len = total_len; 7425 } else { 7426 ctsio->residual = 0; 7427 ctsio->kern_data_len = alloc_len; 7428 ctsio->kern_total_len = alloc_len; 7429 } 7430 ctsio->kern_data_resid = 0; 7431 ctsio->kern_rel_offset = 0; 7432 7433 switch (cdb->options & RSO_OPTIONS_MASK) { 7434 case RSO_OPTIONS_ALL: 7435 all = (struct scsi_report_supported_opcodes_all *) 7436 ctsio->kern_data_ptr; 7437 num = 0; 7438 for (i = 0; i < 256; i++) { 7439 entry = &ctl_cmd_table[i]; 7440 if (entry->flags & CTL_CMD_FLAG_SA5) { 7441 for (j = 0; j < 32; j++) { 7442 sentry = &((const struct ctl_cmd_entry *) 7443 entry->execute)[j]; 7444 if (!ctl_cmd_applicable( 7445 lun->be_lun->lun_type, sentry)) 7446 continue; 7447 descr = &all->descr[num++]; 7448 descr->opcode = i; 7449 scsi_ulto2b(j, descr->service_action); 7450 descr->flags = RSO_SERVACTV; 7451 scsi_ulto2b(sentry->length, 7452 descr->cdb_length); 7453 } 7454 } else { 7455 if (!ctl_cmd_applicable(lun->be_lun->lun_type, 7456 entry)) 7457 continue; 7458 descr = &all->descr[num++]; 7459 descr->opcode = i; 7460 scsi_ulto2b(0, descr->service_action); 7461 descr->flags = 0; 7462 scsi_ulto2b(entry->length, descr->cdb_length); 7463 } 7464 } 7465 scsi_ulto4b( 7466 num * sizeof(struct scsi_report_supported_opcodes_descr), 7467 all->length); 7468 break; 7469 case RSO_OPTIONS_OC: 7470 one = (struct scsi_report_supported_opcodes_one *) 7471 ctsio->kern_data_ptr; 7472 entry = &ctl_cmd_table[opcode]; 7473 goto fill_one; 7474 case RSO_OPTIONS_OC_SA: 7475 one = (struct scsi_report_supported_opcodes_one *) 7476 ctsio->kern_data_ptr; 7477 entry = &ctl_cmd_table[opcode]; 7478 entry = &((const struct ctl_cmd_entry *) 7479 entry->execute)[service_action]; 7480fill_one: 7481 if (ctl_cmd_applicable(lun->be_lun->lun_type, entry)) { 7482 one->support = 3; 7483 scsi_ulto2b(entry->length, one->cdb_length); 7484 one->cdb_usage[0] = opcode; 7485 memcpy(&one->cdb_usage[1], entry->usage, 7486 entry->length - 1); 7487 } else 7488 one->support = 1; 7489 break; 7490 } 7491 7492 ctl_set_success(ctsio); 7493 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7494 ctsio->be_move_done = ctl_config_move_done; 7495 ctl_datamove((union ctl_io *)ctsio); 7496 return(retval); 7497} 7498 7499int 7500ctl_report_supported_tmf(struct ctl_scsiio *ctsio) 7501{ 7502 struct scsi_report_supported_tmf *cdb; 7503 struct scsi_report_supported_tmf_data *data; 7504 int retval; 7505 int alloc_len, total_len; 7506 7507 CTL_DEBUG_PRINT(("ctl_report_supported_tmf\n")); 7508 7509 cdb = (struct scsi_report_supported_tmf *)ctsio->cdb; 7510 7511 retval = CTL_RETVAL_COMPLETE; 7512 7513 total_len = sizeof(struct scsi_report_supported_tmf_data); 7514 alloc_len = scsi_4btoul(cdb->length); 7515 7516 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7517 7518 ctsio->kern_sg_entries = 0; 7519 7520 if (total_len < alloc_len) { 7521 ctsio->residual = alloc_len - total_len; 7522 ctsio->kern_data_len = total_len; 7523 ctsio->kern_total_len = total_len; 7524 } else { 7525 ctsio->residual = 0; 7526 ctsio->kern_data_len = alloc_len; 7527 ctsio->kern_total_len = alloc_len; 7528 } 7529 ctsio->kern_data_resid = 0; 7530 ctsio->kern_rel_offset = 0; 7531 7532 data = (struct scsi_report_supported_tmf_data *)ctsio->kern_data_ptr; 7533 data->byte1 |= RST_ATS | RST_ATSS | RST_CTSS | RST_LURS | RST_QTS | 7534 RST_TRS; 7535 data->byte2 |= RST_QAES | RST_QTSS | RST_ITNRS; 7536 7537 ctl_set_success(ctsio); 7538 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7539 ctsio->be_move_done = ctl_config_move_done; 7540 ctl_datamove((union ctl_io *)ctsio); 7541 return (retval); 7542} 7543 7544int 7545ctl_report_timestamp(struct ctl_scsiio *ctsio) 7546{ 7547 struct scsi_report_timestamp *cdb; 7548 struct scsi_report_timestamp_data *data; 7549 struct timeval tv; 7550 int64_t timestamp; 7551 int retval; 7552 int alloc_len, total_len; 7553 7554 CTL_DEBUG_PRINT(("ctl_report_timestamp\n")); 7555 7556 cdb = (struct scsi_report_timestamp *)ctsio->cdb; 7557 7558 retval = CTL_RETVAL_COMPLETE; 7559 7560 total_len = sizeof(struct scsi_report_timestamp_data); 7561 alloc_len = scsi_4btoul(cdb->length); 7562 7563 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7564 7565 ctsio->kern_sg_entries = 0; 7566 7567 if (total_len < alloc_len) { 7568 ctsio->residual = alloc_len - total_len; 7569 ctsio->kern_data_len = total_len; 7570 ctsio->kern_total_len = total_len; 7571 } else { 7572 ctsio->residual = 0; 7573 ctsio->kern_data_len = alloc_len; 7574 ctsio->kern_total_len = alloc_len; 7575 } 7576 ctsio->kern_data_resid = 0; 7577 ctsio->kern_rel_offset = 0; 7578 7579 data = (struct scsi_report_timestamp_data *)ctsio->kern_data_ptr; 7580 scsi_ulto2b(sizeof(*data) - 2, data->length); 7581 data->origin = RTS_ORIG_OUTSIDE; 7582 getmicrotime(&tv); 7583 timestamp = (int64_t)tv.tv_sec * 1000 + tv.tv_usec / 1000; 7584 scsi_ulto4b(timestamp >> 16, data->timestamp); 7585 scsi_ulto2b(timestamp & 0xffff, &data->timestamp[4]); 7586 7587 ctl_set_success(ctsio); 7588 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7589 ctsio->be_move_done = ctl_config_move_done; 7590 ctl_datamove((union ctl_io *)ctsio); 7591 return (retval); 7592} 7593 7594int 7595ctl_persistent_reserve_in(struct ctl_scsiio *ctsio) 7596{ 7597 struct scsi_per_res_in *cdb; 7598 int alloc_len, total_len = 0; 7599 /* struct scsi_per_res_in_rsrv in_data; */ 7600 struct ctl_lun *lun; 7601 struct ctl_softc *softc; 7602 uint64_t key; 7603 7604 CTL_DEBUG_PRINT(("ctl_persistent_reserve_in\n")); 7605 7606 cdb = (struct scsi_per_res_in *)ctsio->cdb; 7607 7608 alloc_len = scsi_2btoul(cdb->length); 7609 7610 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7611 softc = lun->ctl_softc; 7612 7613retry: 7614 mtx_lock(&lun->lun_lock); 7615 switch (cdb->action) { 7616 case SPRI_RK: /* read keys */ 7617 total_len = sizeof(struct scsi_per_res_in_keys) + 7618 lun->pr_key_count * 7619 sizeof(struct scsi_per_res_key); 7620 break; 7621 case SPRI_RR: /* read reservation */ 7622 if (lun->flags & CTL_LUN_PR_RESERVED) 7623 total_len = sizeof(struct scsi_per_res_in_rsrv); 7624 else 7625 total_len = sizeof(struct scsi_per_res_in_header); 7626 break; 7627 case SPRI_RC: /* report capabilities */ 7628 total_len = sizeof(struct scsi_per_res_cap); 7629 break; 7630 case SPRI_RS: /* read full status */ 7631 total_len = sizeof(struct scsi_per_res_in_header) + 7632 (sizeof(struct scsi_per_res_in_full_desc) + 256) * 7633 lun->pr_key_count; 7634 break; 7635 default: 7636 panic("%s: Invalid PR type %#x", __func__, cdb->action); 7637 } 7638 mtx_unlock(&lun->lun_lock); 7639 7640 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7641 7642 if (total_len < alloc_len) { 7643 ctsio->residual = alloc_len - total_len; 7644 ctsio->kern_data_len = total_len; 7645 ctsio->kern_total_len = total_len; 7646 } else { 7647 ctsio->residual = 0; 7648 ctsio->kern_data_len = alloc_len; 7649 ctsio->kern_total_len = alloc_len; 7650 } 7651 7652 ctsio->kern_data_resid = 0; 7653 ctsio->kern_rel_offset = 0; 7654 ctsio->kern_sg_entries = 0; 7655 7656 mtx_lock(&lun->lun_lock); 7657 switch (cdb->action) { 7658 case SPRI_RK: { // read keys 7659 struct scsi_per_res_in_keys *res_keys; 7660 int i, key_count; 7661 7662 res_keys = (struct scsi_per_res_in_keys*)ctsio->kern_data_ptr; 7663 7664 /* 7665 * We had to drop the lock to allocate our buffer, which 7666 * leaves time for someone to come in with another 7667 * persistent reservation. (That is unlikely, though, 7668 * since this should be the only persistent reservation 7669 * command active right now.) 7670 */ 7671 if (total_len != (sizeof(struct scsi_per_res_in_keys) + 7672 (lun->pr_key_count * 7673 sizeof(struct scsi_per_res_key)))){ 7674 mtx_unlock(&lun->lun_lock); 7675 free(ctsio->kern_data_ptr, M_CTL); 7676 printf("%s: reservation length changed, retrying\n", 7677 __func__); 7678 goto retry; 7679 } 7680 7681 scsi_ulto4b(lun->pr_generation, res_keys->header.generation); 7682 7683 scsi_ulto4b(sizeof(struct scsi_per_res_key) * 7684 lun->pr_key_count, res_keys->header.length); 7685 7686 for (i = 0, key_count = 0; i < CTL_MAX_INITIATORS; i++) { 7687 if ((key = ctl_get_prkey(lun, i)) == 0) 7688 continue; 7689 7690 /* 7691 * We used lun->pr_key_count to calculate the 7692 * size to allocate. If it turns out the number of 7693 * initiators with the registered flag set is 7694 * larger than that (i.e. they haven't been kept in 7695 * sync), we've got a problem. 7696 */ 7697 if (key_count >= lun->pr_key_count) { 7698 key_count++; 7699 continue; 7700 } 7701 scsi_u64to8b(key, res_keys->keys[key_count].key); 7702 key_count++; 7703 } 7704 break; 7705 } 7706 case SPRI_RR: { // read reservation 7707 struct scsi_per_res_in_rsrv *res; 7708 int tmp_len, header_only; 7709 7710 res = (struct scsi_per_res_in_rsrv *)ctsio->kern_data_ptr; 7711 7712 scsi_ulto4b(lun->pr_generation, res->header.generation); 7713 7714 if (lun->flags & CTL_LUN_PR_RESERVED) 7715 { 7716 tmp_len = sizeof(struct scsi_per_res_in_rsrv); 7717 scsi_ulto4b(sizeof(struct scsi_per_res_in_rsrv_data), 7718 res->header.length); 7719 header_only = 0; 7720 } else { 7721 tmp_len = sizeof(struct scsi_per_res_in_header); 7722 scsi_ulto4b(0, res->header.length); 7723 header_only = 1; 7724 } 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 (tmp_len != total_len) { 7734 mtx_unlock(&lun->lun_lock); 7735 free(ctsio->kern_data_ptr, M_CTL); 7736 printf("%s: reservation status changed, retrying\n", 7737 __func__); 7738 goto retry; 7739 } 7740 7741 /* 7742 * No reservation held, so we're done. 7743 */ 7744 if (header_only != 0) 7745 break; 7746 7747 /* 7748 * If the registration is an All Registrants type, the key 7749 * is 0, since it doesn't really matter. 7750 */ 7751 if (lun->pr_res_idx != CTL_PR_ALL_REGISTRANTS) { 7752 scsi_u64to8b(ctl_get_prkey(lun, lun->pr_res_idx), 7753 res->data.reservation); 7754 } 7755 res->data.scopetype = lun->pr_res_type; 7756 break; 7757 } 7758 case SPRI_RC: //report capabilities 7759 { 7760 struct scsi_per_res_cap *res_cap; 7761 uint16_t type_mask; 7762 7763 res_cap = (struct scsi_per_res_cap *)ctsio->kern_data_ptr; 7764 scsi_ulto2b(sizeof(*res_cap), res_cap->length); 7765 res_cap->flags1 = SPRI_CRH; 7766 res_cap->flags2 = SPRI_TMV | SPRI_ALLOW_5; 7767 type_mask = SPRI_TM_WR_EX_AR | 7768 SPRI_TM_EX_AC_RO | 7769 SPRI_TM_WR_EX_RO | 7770 SPRI_TM_EX_AC | 7771 SPRI_TM_WR_EX | 7772 SPRI_TM_EX_AC_AR; 7773 scsi_ulto2b(type_mask, res_cap->type_mask); 7774 break; 7775 } 7776 case SPRI_RS: { // read full status 7777 struct scsi_per_res_in_full *res_status; 7778 struct scsi_per_res_in_full_desc *res_desc; 7779 struct ctl_port *port; 7780 int i, len; 7781 7782 res_status = (struct scsi_per_res_in_full*)ctsio->kern_data_ptr; 7783 7784 /* 7785 * We had to drop the lock to allocate our buffer, which 7786 * leaves time for someone to come in with another 7787 * persistent reservation. (That is unlikely, though, 7788 * since this should be the only persistent reservation 7789 * command active right now.) 7790 */ 7791 if (total_len < (sizeof(struct scsi_per_res_in_header) + 7792 (sizeof(struct scsi_per_res_in_full_desc) + 256) * 7793 lun->pr_key_count)){ 7794 mtx_unlock(&lun->lun_lock); 7795 free(ctsio->kern_data_ptr, M_CTL); 7796 printf("%s: reservation length changed, retrying\n", 7797 __func__); 7798 goto retry; 7799 } 7800 7801 scsi_ulto4b(lun->pr_generation, res_status->header.generation); 7802 7803 res_desc = &res_status->desc[0]; 7804 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 7805 if ((key = ctl_get_prkey(lun, i)) == 0) 7806 continue; 7807 7808 scsi_u64to8b(key, res_desc->res_key.key); 7809 if ((lun->flags & CTL_LUN_PR_RESERVED) && 7810 (lun->pr_res_idx == i || 7811 lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS)) { 7812 res_desc->flags = SPRI_FULL_R_HOLDER; 7813 res_desc->scopetype = lun->pr_res_type; 7814 } 7815 scsi_ulto2b(i / CTL_MAX_INIT_PER_PORT, 7816 res_desc->rel_trgt_port_id); 7817 len = 0; 7818 port = softc->ctl_ports[i / CTL_MAX_INIT_PER_PORT]; 7819 if (port != NULL) 7820 len = ctl_create_iid(port, 7821 i % CTL_MAX_INIT_PER_PORT, 7822 res_desc->transport_id); 7823 scsi_ulto4b(len, res_desc->additional_length); 7824 res_desc = (struct scsi_per_res_in_full_desc *) 7825 &res_desc->transport_id[len]; 7826 } 7827 scsi_ulto4b((uint8_t *)res_desc - (uint8_t *)&res_status->desc[0], 7828 res_status->header.length); 7829 break; 7830 } 7831 default: 7832 panic("%s: Invalid PR type %#x", __func__, cdb->action); 7833 } 7834 mtx_unlock(&lun->lun_lock); 7835 7836 ctl_set_success(ctsio); 7837 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7838 ctsio->be_move_done = ctl_config_move_done; 7839 ctl_datamove((union ctl_io *)ctsio); 7840 return (CTL_RETVAL_COMPLETE); 7841} 7842 7843/* 7844 * Returns 0 if ctl_persistent_reserve_out() should continue, non-zero if 7845 * it should return. 7846 */ 7847static int 7848ctl_pro_preempt(struct ctl_softc *softc, struct ctl_lun *lun, uint64_t res_key, 7849 uint64_t sa_res_key, uint8_t type, uint32_t residx, 7850 struct ctl_scsiio *ctsio, struct scsi_per_res_out *cdb, 7851 struct scsi_per_res_out_parms* param) 7852{ 7853 union ctl_ha_msg persis_io; 7854 int i; 7855 7856 mtx_lock(&lun->lun_lock); 7857 if (sa_res_key == 0) { 7858 if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS) { 7859 /* validate scope and type */ 7860 if ((cdb->scope_type & SPR_SCOPE_MASK) != 7861 SPR_LU_SCOPE) { 7862 mtx_unlock(&lun->lun_lock); 7863 ctl_set_invalid_field(/*ctsio*/ ctsio, 7864 /*sks_valid*/ 1, 7865 /*command*/ 1, 7866 /*field*/ 2, 7867 /*bit_valid*/ 1, 7868 /*bit*/ 4); 7869 ctl_done((union ctl_io *)ctsio); 7870 return (1); 7871 } 7872 7873 if (type>8 || type==2 || type==4 || type==0) { 7874 mtx_unlock(&lun->lun_lock); 7875 ctl_set_invalid_field(/*ctsio*/ ctsio, 7876 /*sks_valid*/ 1, 7877 /*command*/ 1, 7878 /*field*/ 2, 7879 /*bit_valid*/ 1, 7880 /*bit*/ 0); 7881 ctl_done((union ctl_io *)ctsio); 7882 return (1); 7883 } 7884 7885 /* 7886 * Unregister everybody else and build UA for 7887 * them 7888 */ 7889 for(i = 0; i < CTL_MAX_INITIATORS; i++) { 7890 if (i == residx || ctl_get_prkey(lun, i) == 0) 7891 continue; 7892 7893 ctl_clr_prkey(lun, i); 7894 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 7895 } 7896 lun->pr_key_count = 1; 7897 lun->pr_res_type = type; 7898 if (lun->pr_res_type != SPR_TYPE_WR_EX_AR && 7899 lun->pr_res_type != SPR_TYPE_EX_AC_AR) 7900 lun->pr_res_idx = residx; 7901 lun->pr_generation++; 7902 mtx_unlock(&lun->lun_lock); 7903 7904 /* send msg to other side */ 7905 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 7906 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 7907 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 7908 persis_io.pr.pr_info.residx = lun->pr_res_idx; 7909 persis_io.pr.pr_info.res_type = type; 7910 memcpy(persis_io.pr.pr_info.sa_res_key, 7911 param->serv_act_res_key, 7912 sizeof(param->serv_act_res_key)); 7913 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 7914 sizeof(persis_io.pr), M_WAITOK); 7915 } else { 7916 /* not all registrants */ 7917 mtx_unlock(&lun->lun_lock); 7918 free(ctsio->kern_data_ptr, M_CTL); 7919 ctl_set_invalid_field(ctsio, 7920 /*sks_valid*/ 1, 7921 /*command*/ 0, 7922 /*field*/ 8, 7923 /*bit_valid*/ 0, 7924 /*bit*/ 0); 7925 ctl_done((union ctl_io *)ctsio); 7926 return (1); 7927 } 7928 } else if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS 7929 || !(lun->flags & CTL_LUN_PR_RESERVED)) { 7930 int found = 0; 7931 7932 if (res_key == sa_res_key) { 7933 /* special case */ 7934 /* 7935 * The spec implies this is not good but doesn't 7936 * say what to do. There are two choices either 7937 * generate a res conflict or check condition 7938 * with illegal field in parameter data. Since 7939 * that is what is done when the sa_res_key is 7940 * zero I'll take that approach since this has 7941 * to do with the sa_res_key. 7942 */ 7943 mtx_unlock(&lun->lun_lock); 7944 free(ctsio->kern_data_ptr, M_CTL); 7945 ctl_set_invalid_field(ctsio, 7946 /*sks_valid*/ 1, 7947 /*command*/ 0, 7948 /*field*/ 8, 7949 /*bit_valid*/ 0, 7950 /*bit*/ 0); 7951 ctl_done((union ctl_io *)ctsio); 7952 return (1); 7953 } 7954 7955 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 7956 if (ctl_get_prkey(lun, i) != sa_res_key) 7957 continue; 7958 7959 found = 1; 7960 ctl_clr_prkey(lun, i); 7961 lun->pr_key_count--; 7962 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 7963 } 7964 if (!found) { 7965 mtx_unlock(&lun->lun_lock); 7966 free(ctsio->kern_data_ptr, M_CTL); 7967 ctl_set_reservation_conflict(ctsio); 7968 ctl_done((union ctl_io *)ctsio); 7969 return (CTL_RETVAL_COMPLETE); 7970 } 7971 lun->pr_generation++; 7972 mtx_unlock(&lun->lun_lock); 7973 7974 /* send msg to other side */ 7975 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 7976 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 7977 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 7978 persis_io.pr.pr_info.residx = lun->pr_res_idx; 7979 persis_io.pr.pr_info.res_type = type; 7980 memcpy(persis_io.pr.pr_info.sa_res_key, 7981 param->serv_act_res_key, 7982 sizeof(param->serv_act_res_key)); 7983 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 7984 sizeof(persis_io.pr), M_WAITOK); 7985 } else { 7986 /* Reserved but not all registrants */ 7987 /* sa_res_key is res holder */ 7988 if (sa_res_key == ctl_get_prkey(lun, lun->pr_res_idx)) { 7989 /* validate scope and type */ 7990 if ((cdb->scope_type & SPR_SCOPE_MASK) != 7991 SPR_LU_SCOPE) { 7992 mtx_unlock(&lun->lun_lock); 7993 ctl_set_invalid_field(/*ctsio*/ ctsio, 7994 /*sks_valid*/ 1, 7995 /*command*/ 1, 7996 /*field*/ 2, 7997 /*bit_valid*/ 1, 7998 /*bit*/ 4); 7999 ctl_done((union ctl_io *)ctsio); 8000 return (1); 8001 } 8002 8003 if (type>8 || type==2 || type==4 || type==0) { 8004 mtx_unlock(&lun->lun_lock); 8005 ctl_set_invalid_field(/*ctsio*/ ctsio, 8006 /*sks_valid*/ 1, 8007 /*command*/ 1, 8008 /*field*/ 2, 8009 /*bit_valid*/ 1, 8010 /*bit*/ 0); 8011 ctl_done((union ctl_io *)ctsio); 8012 return (1); 8013 } 8014 8015 /* 8016 * Do the following: 8017 * if sa_res_key != res_key remove all 8018 * registrants w/sa_res_key and generate UA 8019 * for these registrants(Registrations 8020 * Preempted) if it wasn't an exclusive 8021 * reservation generate UA(Reservations 8022 * Preempted) for all other registered nexuses 8023 * if the type has changed. Establish the new 8024 * reservation and holder. If res_key and 8025 * sa_res_key are the same do the above 8026 * except don't unregister the res holder. 8027 */ 8028 8029 for(i = 0; i < CTL_MAX_INITIATORS; i++) { 8030 if (i == residx || ctl_get_prkey(lun, i) == 0) 8031 continue; 8032 8033 if (sa_res_key == ctl_get_prkey(lun, i)) { 8034 ctl_clr_prkey(lun, i); 8035 lun->pr_key_count--; 8036 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 8037 } else if (type != lun->pr_res_type && 8038 (lun->pr_res_type == SPR_TYPE_WR_EX_RO || 8039 lun->pr_res_type == SPR_TYPE_EX_AC_RO)) { 8040 ctl_est_ua(lun, i, CTL_UA_RES_RELEASE); 8041 } 8042 } 8043 lun->pr_res_type = type; 8044 if (lun->pr_res_type != SPR_TYPE_WR_EX_AR && 8045 lun->pr_res_type != SPR_TYPE_EX_AC_AR) 8046 lun->pr_res_idx = residx; 8047 else 8048 lun->pr_res_idx = CTL_PR_ALL_REGISTRANTS; 8049 lun->pr_generation++; 8050 mtx_unlock(&lun->lun_lock); 8051 8052 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8053 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8054 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 8055 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8056 persis_io.pr.pr_info.res_type = type; 8057 memcpy(persis_io.pr.pr_info.sa_res_key, 8058 param->serv_act_res_key, 8059 sizeof(param->serv_act_res_key)); 8060 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8061 sizeof(persis_io.pr), M_WAITOK); 8062 } else { 8063 /* 8064 * sa_res_key is not the res holder just 8065 * remove registrants 8066 */ 8067 int found=0; 8068 8069 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 8070 if (sa_res_key != ctl_get_prkey(lun, i)) 8071 continue; 8072 8073 found = 1; 8074 ctl_clr_prkey(lun, i); 8075 lun->pr_key_count--; 8076 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 8077 } 8078 8079 if (!found) { 8080 mtx_unlock(&lun->lun_lock); 8081 free(ctsio->kern_data_ptr, M_CTL); 8082 ctl_set_reservation_conflict(ctsio); 8083 ctl_done((union ctl_io *)ctsio); 8084 return (1); 8085 } 8086 lun->pr_generation++; 8087 mtx_unlock(&lun->lun_lock); 8088 8089 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8090 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8091 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 8092 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8093 persis_io.pr.pr_info.res_type = type; 8094 memcpy(persis_io.pr.pr_info.sa_res_key, 8095 param->serv_act_res_key, 8096 sizeof(param->serv_act_res_key)); 8097 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8098 sizeof(persis_io.pr), M_WAITOK); 8099 } 8100 } 8101 return (0); 8102} 8103 8104static void 8105ctl_pro_preempt_other(struct ctl_lun *lun, union ctl_ha_msg *msg) 8106{ 8107 uint64_t sa_res_key; 8108 int i; 8109 8110 sa_res_key = scsi_8btou64(msg->pr.pr_info.sa_res_key); 8111 8112 if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS 8113 || lun->pr_res_idx == CTL_PR_NO_RESERVATION 8114 || sa_res_key != ctl_get_prkey(lun, lun->pr_res_idx)) { 8115 if (sa_res_key == 0) { 8116 /* 8117 * Unregister everybody else and build UA for 8118 * them 8119 */ 8120 for(i = 0; i < CTL_MAX_INITIATORS; i++) { 8121 if (i == msg->pr.pr_info.residx || 8122 ctl_get_prkey(lun, i) == 0) 8123 continue; 8124 8125 ctl_clr_prkey(lun, i); 8126 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 8127 } 8128 8129 lun->pr_key_count = 1; 8130 lun->pr_res_type = msg->pr.pr_info.res_type; 8131 if (lun->pr_res_type != SPR_TYPE_WR_EX_AR && 8132 lun->pr_res_type != SPR_TYPE_EX_AC_AR) 8133 lun->pr_res_idx = msg->pr.pr_info.residx; 8134 } else { 8135 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 8136 if (sa_res_key == ctl_get_prkey(lun, i)) 8137 continue; 8138 8139 ctl_clr_prkey(lun, i); 8140 lun->pr_key_count--; 8141 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 8142 } 8143 } 8144 } else { 8145 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 8146 if (i == msg->pr.pr_info.residx || 8147 ctl_get_prkey(lun, i) == 0) 8148 continue; 8149 8150 if (sa_res_key == ctl_get_prkey(lun, i)) { 8151 ctl_clr_prkey(lun, i); 8152 lun->pr_key_count--; 8153 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 8154 } else if (msg->pr.pr_info.res_type != lun->pr_res_type 8155 && (lun->pr_res_type == SPR_TYPE_WR_EX_RO || 8156 lun->pr_res_type == SPR_TYPE_EX_AC_RO)) { 8157 ctl_est_ua(lun, i, CTL_UA_RES_RELEASE); 8158 } 8159 } 8160 lun->pr_res_type = msg->pr.pr_info.res_type; 8161 if (lun->pr_res_type != SPR_TYPE_WR_EX_AR && 8162 lun->pr_res_type != SPR_TYPE_EX_AC_AR) 8163 lun->pr_res_idx = msg->pr.pr_info.residx; 8164 else 8165 lun->pr_res_idx = CTL_PR_ALL_REGISTRANTS; 8166 } 8167 lun->pr_generation++; 8168 8169} 8170 8171 8172int 8173ctl_persistent_reserve_out(struct ctl_scsiio *ctsio) 8174{ 8175 int retval; 8176 u_int32_t param_len; 8177 struct scsi_per_res_out *cdb; 8178 struct ctl_lun *lun; 8179 struct scsi_per_res_out_parms* param; 8180 struct ctl_softc *softc; 8181 uint32_t residx; 8182 uint64_t res_key, sa_res_key, key; 8183 uint8_t type; 8184 union ctl_ha_msg persis_io; 8185 int i; 8186 8187 CTL_DEBUG_PRINT(("ctl_persistent_reserve_out\n")); 8188 8189 retval = CTL_RETVAL_COMPLETE; 8190 8191 cdb = (struct scsi_per_res_out *)ctsio->cdb; 8192 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 8193 softc = lun->ctl_softc; 8194 8195 /* 8196 * We only support whole-LUN scope. The scope & type are ignored for 8197 * register, register and ignore existing key and clear. 8198 * We sometimes ignore scope and type on preempts too!! 8199 * Verify reservation type here as well. 8200 */ 8201 type = cdb->scope_type & SPR_TYPE_MASK; 8202 if ((cdb->action == SPRO_RESERVE) 8203 || (cdb->action == SPRO_RELEASE)) { 8204 if ((cdb->scope_type & SPR_SCOPE_MASK) != SPR_LU_SCOPE) { 8205 ctl_set_invalid_field(/*ctsio*/ ctsio, 8206 /*sks_valid*/ 1, 8207 /*command*/ 1, 8208 /*field*/ 2, 8209 /*bit_valid*/ 1, 8210 /*bit*/ 4); 8211 ctl_done((union ctl_io *)ctsio); 8212 return (CTL_RETVAL_COMPLETE); 8213 } 8214 8215 if (type>8 || type==2 || type==4 || type==0) { 8216 ctl_set_invalid_field(/*ctsio*/ ctsio, 8217 /*sks_valid*/ 1, 8218 /*command*/ 1, 8219 /*field*/ 2, 8220 /*bit_valid*/ 1, 8221 /*bit*/ 0); 8222 ctl_done((union ctl_io *)ctsio); 8223 return (CTL_RETVAL_COMPLETE); 8224 } 8225 } 8226 8227 param_len = scsi_4btoul(cdb->length); 8228 8229 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 8230 ctsio->kern_data_ptr = malloc(param_len, M_CTL, M_WAITOK); 8231 ctsio->kern_data_len = param_len; 8232 ctsio->kern_total_len = param_len; 8233 ctsio->kern_data_resid = 0; 8234 ctsio->kern_rel_offset = 0; 8235 ctsio->kern_sg_entries = 0; 8236 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 8237 ctsio->be_move_done = ctl_config_move_done; 8238 ctl_datamove((union ctl_io *)ctsio); 8239 8240 return (CTL_RETVAL_COMPLETE); 8241 } 8242 8243 param = (struct scsi_per_res_out_parms *)ctsio->kern_data_ptr; 8244 8245 residx = ctl_get_initindex(&ctsio->io_hdr.nexus); 8246 res_key = scsi_8btou64(param->res_key.key); 8247 sa_res_key = scsi_8btou64(param->serv_act_res_key); 8248 8249 /* 8250 * Validate the reservation key here except for SPRO_REG_IGNO 8251 * This must be done for all other service actions 8252 */ 8253 if ((cdb->action & SPRO_ACTION_MASK) != SPRO_REG_IGNO) { 8254 mtx_lock(&lun->lun_lock); 8255 if ((key = ctl_get_prkey(lun, residx)) != 0) { 8256 if (res_key != key) { 8257 /* 8258 * The current key passed in doesn't match 8259 * the one the initiator previously 8260 * registered. 8261 */ 8262 mtx_unlock(&lun->lun_lock); 8263 free(ctsio->kern_data_ptr, M_CTL); 8264 ctl_set_reservation_conflict(ctsio); 8265 ctl_done((union ctl_io *)ctsio); 8266 return (CTL_RETVAL_COMPLETE); 8267 } 8268 } else if ((cdb->action & SPRO_ACTION_MASK) != SPRO_REGISTER) { 8269 /* 8270 * We are not registered 8271 */ 8272 mtx_unlock(&lun->lun_lock); 8273 free(ctsio->kern_data_ptr, M_CTL); 8274 ctl_set_reservation_conflict(ctsio); 8275 ctl_done((union ctl_io *)ctsio); 8276 return (CTL_RETVAL_COMPLETE); 8277 } else if (res_key != 0) { 8278 /* 8279 * We are not registered and trying to register but 8280 * the register key isn't zero. 8281 */ 8282 mtx_unlock(&lun->lun_lock); 8283 free(ctsio->kern_data_ptr, M_CTL); 8284 ctl_set_reservation_conflict(ctsio); 8285 ctl_done((union ctl_io *)ctsio); 8286 return (CTL_RETVAL_COMPLETE); 8287 } 8288 mtx_unlock(&lun->lun_lock); 8289 } 8290 8291 switch (cdb->action & SPRO_ACTION_MASK) { 8292 case SPRO_REGISTER: 8293 case SPRO_REG_IGNO: { 8294 8295#if 0 8296 printf("Registration received\n"); 8297#endif 8298 8299 /* 8300 * We don't support any of these options, as we report in 8301 * the read capabilities request (see 8302 * ctl_persistent_reserve_in(), above). 8303 */ 8304 if ((param->flags & SPR_SPEC_I_PT) 8305 || (param->flags & SPR_ALL_TG_PT) 8306 || (param->flags & SPR_APTPL)) { 8307 int bit_ptr; 8308 8309 if (param->flags & SPR_APTPL) 8310 bit_ptr = 0; 8311 else if (param->flags & SPR_ALL_TG_PT) 8312 bit_ptr = 2; 8313 else /* SPR_SPEC_I_PT */ 8314 bit_ptr = 3; 8315 8316 free(ctsio->kern_data_ptr, M_CTL); 8317 ctl_set_invalid_field(ctsio, 8318 /*sks_valid*/ 1, 8319 /*command*/ 0, 8320 /*field*/ 20, 8321 /*bit_valid*/ 1, 8322 /*bit*/ bit_ptr); 8323 ctl_done((union ctl_io *)ctsio); 8324 return (CTL_RETVAL_COMPLETE); 8325 } 8326 8327 mtx_lock(&lun->lun_lock); 8328 8329 /* 8330 * The initiator wants to clear the 8331 * key/unregister. 8332 */ 8333 if (sa_res_key == 0) { 8334 if ((res_key == 0 8335 && (cdb->action & SPRO_ACTION_MASK) == SPRO_REGISTER) 8336 || ((cdb->action & SPRO_ACTION_MASK) == SPRO_REG_IGNO 8337 && ctl_get_prkey(lun, residx) == 0)) { 8338 mtx_unlock(&lun->lun_lock); 8339 goto done; 8340 } 8341 8342 ctl_clr_prkey(lun, residx); 8343 lun->pr_key_count--; 8344 8345 if (residx == lun->pr_res_idx) { 8346 lun->flags &= ~CTL_LUN_PR_RESERVED; 8347 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8348 8349 if ((lun->pr_res_type == SPR_TYPE_WR_EX_RO || 8350 lun->pr_res_type == SPR_TYPE_EX_AC_RO) && 8351 lun->pr_key_count) { 8352 /* 8353 * If the reservation is a registrants 8354 * only type we need to generate a UA 8355 * for other registered inits. The 8356 * sense code should be RESERVATIONS 8357 * RELEASED 8358 */ 8359 8360 for (i = softc->init_min; i < softc->init_max; i++){ 8361 if (ctl_get_prkey(lun, i) == 0) 8362 continue; 8363 ctl_est_ua(lun, i, 8364 CTL_UA_RES_RELEASE); 8365 } 8366 } 8367 lun->pr_res_type = 0; 8368 } else if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS) { 8369 if (lun->pr_key_count==0) { 8370 lun->flags &= ~CTL_LUN_PR_RESERVED; 8371 lun->pr_res_type = 0; 8372 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8373 } 8374 } 8375 lun->pr_generation++; 8376 mtx_unlock(&lun->lun_lock); 8377 8378 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8379 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8380 persis_io.pr.pr_info.action = CTL_PR_UNREG_KEY; 8381 persis_io.pr.pr_info.residx = residx; 8382 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8383 sizeof(persis_io.pr), M_WAITOK); 8384 } else /* sa_res_key != 0 */ { 8385 8386 /* 8387 * If we aren't registered currently then increment 8388 * the key count and set the registered flag. 8389 */ 8390 ctl_alloc_prkey(lun, residx); 8391 if (ctl_get_prkey(lun, residx) == 0) 8392 lun->pr_key_count++; 8393 ctl_set_prkey(lun, residx, sa_res_key); 8394 lun->pr_generation++; 8395 mtx_unlock(&lun->lun_lock); 8396 8397 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8398 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8399 persis_io.pr.pr_info.action = CTL_PR_REG_KEY; 8400 persis_io.pr.pr_info.residx = residx; 8401 memcpy(persis_io.pr.pr_info.sa_res_key, 8402 param->serv_act_res_key, 8403 sizeof(param->serv_act_res_key)); 8404 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8405 sizeof(persis_io.pr), M_WAITOK); 8406 } 8407 8408 break; 8409 } 8410 case SPRO_RESERVE: 8411#if 0 8412 printf("Reserve executed type %d\n", type); 8413#endif 8414 mtx_lock(&lun->lun_lock); 8415 if (lun->flags & CTL_LUN_PR_RESERVED) { 8416 /* 8417 * if this isn't the reservation holder and it's 8418 * not a "all registrants" type or if the type is 8419 * different then we have a conflict 8420 */ 8421 if ((lun->pr_res_idx != residx 8422 && lun->pr_res_idx != CTL_PR_ALL_REGISTRANTS) 8423 || lun->pr_res_type != type) { 8424 mtx_unlock(&lun->lun_lock); 8425 free(ctsio->kern_data_ptr, M_CTL); 8426 ctl_set_reservation_conflict(ctsio); 8427 ctl_done((union ctl_io *)ctsio); 8428 return (CTL_RETVAL_COMPLETE); 8429 } 8430 mtx_unlock(&lun->lun_lock); 8431 } else /* create a reservation */ { 8432 /* 8433 * If it's not an "all registrants" type record 8434 * reservation holder 8435 */ 8436 if (type != SPR_TYPE_WR_EX_AR 8437 && type != SPR_TYPE_EX_AC_AR) 8438 lun->pr_res_idx = residx; /* Res holder */ 8439 else 8440 lun->pr_res_idx = CTL_PR_ALL_REGISTRANTS; 8441 8442 lun->flags |= CTL_LUN_PR_RESERVED; 8443 lun->pr_res_type = type; 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_RESERVE; 8451 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8452 persis_io.pr.pr_info.res_type = type; 8453 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8454 sizeof(persis_io.pr), M_WAITOK); 8455 } 8456 break; 8457 8458 case SPRO_RELEASE: 8459 mtx_lock(&lun->lun_lock); 8460 if ((lun->flags & CTL_LUN_PR_RESERVED) == 0) { 8461 /* No reservation exists return good status */ 8462 mtx_unlock(&lun->lun_lock); 8463 goto done; 8464 } 8465 /* 8466 * Is this nexus a reservation holder? 8467 */ 8468 if (lun->pr_res_idx != residx 8469 && lun->pr_res_idx != CTL_PR_ALL_REGISTRANTS) { 8470 /* 8471 * not a res holder return good status but 8472 * do nothing 8473 */ 8474 mtx_unlock(&lun->lun_lock); 8475 goto done; 8476 } 8477 8478 if (lun->pr_res_type != type) { 8479 mtx_unlock(&lun->lun_lock); 8480 free(ctsio->kern_data_ptr, M_CTL); 8481 ctl_set_illegal_pr_release(ctsio); 8482 ctl_done((union ctl_io *)ctsio); 8483 return (CTL_RETVAL_COMPLETE); 8484 } 8485 8486 /* okay to release */ 8487 lun->flags &= ~CTL_LUN_PR_RESERVED; 8488 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8489 lun->pr_res_type = 0; 8490 8491 /* 8492 * if this isn't an exclusive access 8493 * res generate UA for all other 8494 * registrants. 8495 */ 8496 if (type != SPR_TYPE_EX_AC 8497 && type != SPR_TYPE_WR_EX) { 8498 for (i = softc->init_min; i < softc->init_max; i++) { 8499 if (i == residx || ctl_get_prkey(lun, i) == 0) 8500 continue; 8501 ctl_est_ua(lun, i, CTL_UA_RES_RELEASE); 8502 } 8503 } 8504 mtx_unlock(&lun->lun_lock); 8505 8506 /* Send msg to other side */ 8507 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8508 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8509 persis_io.pr.pr_info.action = CTL_PR_RELEASE; 8510 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8511 sizeof(persis_io.pr), M_WAITOK); 8512 break; 8513 8514 case SPRO_CLEAR: 8515 /* send msg to other side */ 8516 8517 mtx_lock(&lun->lun_lock); 8518 lun->flags &= ~CTL_LUN_PR_RESERVED; 8519 lun->pr_res_type = 0; 8520 lun->pr_key_count = 0; 8521 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8522 8523 ctl_clr_prkey(lun, residx); 8524 for (i = 0; i < CTL_MAX_INITIATORS; i++) 8525 if (ctl_get_prkey(lun, i) != 0) { 8526 ctl_clr_prkey(lun, i); 8527 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 8528 } 8529 lun->pr_generation++; 8530 mtx_unlock(&lun->lun_lock); 8531 8532 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8533 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8534 persis_io.pr.pr_info.action = CTL_PR_CLEAR; 8535 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8536 sizeof(persis_io.pr), M_WAITOK); 8537 break; 8538 8539 case SPRO_PREEMPT: 8540 case SPRO_PRE_ABO: { 8541 int nretval; 8542 8543 nretval = ctl_pro_preempt(softc, lun, res_key, sa_res_key, type, 8544 residx, ctsio, cdb, param); 8545 if (nretval != 0) 8546 return (CTL_RETVAL_COMPLETE); 8547 break; 8548 } 8549 default: 8550 panic("%s: Invalid PR type %#x", __func__, cdb->action); 8551 } 8552 8553done: 8554 free(ctsio->kern_data_ptr, M_CTL); 8555 ctl_set_success(ctsio); 8556 ctl_done((union ctl_io *)ctsio); 8557 8558 return (retval); 8559} 8560 8561/* 8562 * This routine is for handling a message from the other SC pertaining to 8563 * persistent reserve out. All the error checking will have been done 8564 * so only perorming the action need be done here to keep the two 8565 * in sync. 8566 */ 8567static void 8568ctl_hndl_per_res_out_on_other_sc(union ctl_ha_msg *msg) 8569{ 8570 struct ctl_softc *softc = control_softc; 8571 struct ctl_lun *lun; 8572 int i; 8573 uint32_t residx, targ_lun; 8574 8575 targ_lun = msg->hdr.nexus.targ_mapped_lun; 8576 mtx_lock(&softc->ctl_lock); 8577 if ((targ_lun >= CTL_MAX_LUNS) || 8578 ((lun = softc->ctl_luns[targ_lun]) == NULL)) { 8579 mtx_unlock(&softc->ctl_lock); 8580 return; 8581 } 8582 mtx_lock(&lun->lun_lock); 8583 mtx_unlock(&softc->ctl_lock); 8584 if (lun->flags & CTL_LUN_DISABLED) { 8585 mtx_unlock(&lun->lun_lock); 8586 return; 8587 } 8588 residx = ctl_get_initindex(&msg->hdr.nexus); 8589 switch(msg->pr.pr_info.action) { 8590 case CTL_PR_REG_KEY: 8591 ctl_alloc_prkey(lun, msg->pr.pr_info.residx); 8592 if (ctl_get_prkey(lun, msg->pr.pr_info.residx) == 0) 8593 lun->pr_key_count++; 8594 ctl_set_prkey(lun, msg->pr.pr_info.residx, 8595 scsi_8btou64(msg->pr.pr_info.sa_res_key)); 8596 lun->pr_generation++; 8597 break; 8598 8599 case CTL_PR_UNREG_KEY: 8600 ctl_clr_prkey(lun, msg->pr.pr_info.residx); 8601 lun->pr_key_count--; 8602 8603 /* XXX Need to see if the reservation has been released */ 8604 /* if so do we need to generate UA? */ 8605 if (msg->pr.pr_info.residx == lun->pr_res_idx) { 8606 lun->flags &= ~CTL_LUN_PR_RESERVED; 8607 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8608 8609 if ((lun->pr_res_type == SPR_TYPE_WR_EX_RO || 8610 lun->pr_res_type == SPR_TYPE_EX_AC_RO) && 8611 lun->pr_key_count) { 8612 /* 8613 * If the reservation is a registrants 8614 * only type we need to generate a UA 8615 * for other registered inits. The 8616 * sense code should be RESERVATIONS 8617 * RELEASED 8618 */ 8619 8620 for (i = softc->init_min; i < softc->init_max; i++) { 8621 if (ctl_get_prkey(lun, i) == 0) 8622 continue; 8623 8624 ctl_est_ua(lun, i, CTL_UA_RES_RELEASE); 8625 } 8626 } 8627 lun->pr_res_type = 0; 8628 } else if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS) { 8629 if (lun->pr_key_count==0) { 8630 lun->flags &= ~CTL_LUN_PR_RESERVED; 8631 lun->pr_res_type = 0; 8632 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8633 } 8634 } 8635 lun->pr_generation++; 8636 break; 8637 8638 case CTL_PR_RESERVE: 8639 lun->flags |= CTL_LUN_PR_RESERVED; 8640 lun->pr_res_type = msg->pr.pr_info.res_type; 8641 lun->pr_res_idx = msg->pr.pr_info.residx; 8642 8643 break; 8644 8645 case CTL_PR_RELEASE: 8646 /* 8647 * if this isn't an exclusive access res generate UA for all 8648 * other registrants. 8649 */ 8650 if (lun->pr_res_type != SPR_TYPE_EX_AC && 8651 lun->pr_res_type != SPR_TYPE_WR_EX) { 8652 for (i = softc->init_min; i < softc->init_max; i++) 8653 if (i == residx || ctl_get_prkey(lun, i) == 0) 8654 continue; 8655 ctl_est_ua(lun, i, CTL_UA_RES_RELEASE); 8656 } 8657 8658 lun->flags &= ~CTL_LUN_PR_RESERVED; 8659 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8660 lun->pr_res_type = 0; 8661 break; 8662 8663 case CTL_PR_PREEMPT: 8664 ctl_pro_preempt_other(lun, msg); 8665 break; 8666 case CTL_PR_CLEAR: 8667 lun->flags &= ~CTL_LUN_PR_RESERVED; 8668 lun->pr_res_type = 0; 8669 lun->pr_key_count = 0; 8670 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8671 8672 for (i=0; i < CTL_MAX_INITIATORS; i++) { 8673 if (ctl_get_prkey(lun, i) == 0) 8674 continue; 8675 ctl_clr_prkey(lun, i); 8676 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 8677 } 8678 lun->pr_generation++; 8679 break; 8680 } 8681 8682 mtx_unlock(&lun->lun_lock); 8683} 8684 8685int 8686ctl_read_write(struct ctl_scsiio *ctsio) 8687{ 8688 struct ctl_lun *lun; 8689 struct ctl_lba_len_flags *lbalen; 8690 uint64_t lba; 8691 uint32_t num_blocks; 8692 int flags, retval; 8693 int isread; 8694 8695 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 8696 8697 CTL_DEBUG_PRINT(("ctl_read_write: command: %#x\n", ctsio->cdb[0])); 8698 8699 flags = 0; 8700 isread = ctsio->cdb[0] == READ_6 || ctsio->cdb[0] == READ_10 8701 || ctsio->cdb[0] == READ_12 || ctsio->cdb[0] == READ_16; 8702 switch (ctsio->cdb[0]) { 8703 case READ_6: 8704 case WRITE_6: { 8705 struct scsi_rw_6 *cdb; 8706 8707 cdb = (struct scsi_rw_6 *)ctsio->cdb; 8708 8709 lba = scsi_3btoul(cdb->addr); 8710 /* only 5 bits are valid in the most significant address byte */ 8711 lba &= 0x1fffff; 8712 num_blocks = cdb->length; 8713 /* 8714 * This is correct according to SBC-2. 8715 */ 8716 if (num_blocks == 0) 8717 num_blocks = 256; 8718 break; 8719 } 8720 case READ_10: 8721 case WRITE_10: { 8722 struct scsi_rw_10 *cdb; 8723 8724 cdb = (struct scsi_rw_10 *)ctsio->cdb; 8725 if (cdb->byte2 & SRW10_FUA) 8726 flags |= CTL_LLF_FUA; 8727 if (cdb->byte2 & SRW10_DPO) 8728 flags |= CTL_LLF_DPO; 8729 lba = scsi_4btoul(cdb->addr); 8730 num_blocks = scsi_2btoul(cdb->length); 8731 break; 8732 } 8733 case WRITE_VERIFY_10: { 8734 struct scsi_write_verify_10 *cdb; 8735 8736 cdb = (struct scsi_write_verify_10 *)ctsio->cdb; 8737 flags |= CTL_LLF_FUA; 8738 if (cdb->byte2 & SWV_DPO) 8739 flags |= CTL_LLF_DPO; 8740 lba = scsi_4btoul(cdb->addr); 8741 num_blocks = scsi_2btoul(cdb->length); 8742 break; 8743 } 8744 case READ_12: 8745 case WRITE_12: { 8746 struct scsi_rw_12 *cdb; 8747 8748 cdb = (struct scsi_rw_12 *)ctsio->cdb; 8749 if (cdb->byte2 & SRW12_FUA) 8750 flags |= CTL_LLF_FUA; 8751 if (cdb->byte2 & SRW12_DPO) 8752 flags |= CTL_LLF_DPO; 8753 lba = scsi_4btoul(cdb->addr); 8754 num_blocks = scsi_4btoul(cdb->length); 8755 break; 8756 } 8757 case WRITE_VERIFY_12: { 8758 struct scsi_write_verify_12 *cdb; 8759 8760 cdb = (struct scsi_write_verify_12 *)ctsio->cdb; 8761 flags |= CTL_LLF_FUA; 8762 if (cdb->byte2 & SWV_DPO) 8763 flags |= CTL_LLF_DPO; 8764 lba = scsi_4btoul(cdb->addr); 8765 num_blocks = scsi_4btoul(cdb->length); 8766 break; 8767 } 8768 case READ_16: 8769 case WRITE_16: { 8770 struct scsi_rw_16 *cdb; 8771 8772 cdb = (struct scsi_rw_16 *)ctsio->cdb; 8773 if (cdb->byte2 & SRW12_FUA) 8774 flags |= CTL_LLF_FUA; 8775 if (cdb->byte2 & SRW12_DPO) 8776 flags |= CTL_LLF_DPO; 8777 lba = scsi_8btou64(cdb->addr); 8778 num_blocks = scsi_4btoul(cdb->length); 8779 break; 8780 } 8781 case WRITE_ATOMIC_16: { 8782 struct scsi_write_atomic_16 *cdb; 8783 8784 if (lun->be_lun->atomicblock == 0) { 8785 ctl_set_invalid_opcode(ctsio); 8786 ctl_done((union ctl_io *)ctsio); 8787 return (CTL_RETVAL_COMPLETE); 8788 } 8789 8790 cdb = (struct scsi_write_atomic_16 *)ctsio->cdb; 8791 if (cdb->byte2 & SRW12_FUA) 8792 flags |= CTL_LLF_FUA; 8793 if (cdb->byte2 & SRW12_DPO) 8794 flags |= CTL_LLF_DPO; 8795 lba = scsi_8btou64(cdb->addr); 8796 num_blocks = scsi_2btoul(cdb->length); 8797 if (num_blocks > lun->be_lun->atomicblock) { 8798 ctl_set_invalid_field(ctsio, /*sks_valid*/ 1, 8799 /*command*/ 1, /*field*/ 12, /*bit_valid*/ 0, 8800 /*bit*/ 0); 8801 ctl_done((union ctl_io *)ctsio); 8802 return (CTL_RETVAL_COMPLETE); 8803 } 8804 break; 8805 } 8806 case WRITE_VERIFY_16: { 8807 struct scsi_write_verify_16 *cdb; 8808 8809 cdb = (struct scsi_write_verify_16 *)ctsio->cdb; 8810 flags |= CTL_LLF_FUA; 8811 if (cdb->byte2 & SWV_DPO) 8812 flags |= CTL_LLF_DPO; 8813 lba = scsi_8btou64(cdb->addr); 8814 num_blocks = scsi_4btoul(cdb->length); 8815 break; 8816 } 8817 default: 8818 /* 8819 * We got a command we don't support. This shouldn't 8820 * happen, commands should be filtered out above us. 8821 */ 8822 ctl_set_invalid_opcode(ctsio); 8823 ctl_done((union ctl_io *)ctsio); 8824 8825 return (CTL_RETVAL_COMPLETE); 8826 break; /* NOTREACHED */ 8827 } 8828 8829 /* 8830 * The first check is to make sure we're in bounds, the second 8831 * check is to catch wrap-around problems. If the lba + num blocks 8832 * is less than the lba, then we've wrapped around and the block 8833 * range is invalid anyway. 8834 */ 8835 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 8836 || ((lba + num_blocks) < lba)) { 8837 ctl_set_lba_out_of_range(ctsio); 8838 ctl_done((union ctl_io *)ctsio); 8839 return (CTL_RETVAL_COMPLETE); 8840 } 8841 8842 /* 8843 * According to SBC-3, a transfer length of 0 is not an error. 8844 * Note that this cannot happen with WRITE(6) or READ(6), since 0 8845 * translates to 256 blocks for those commands. 8846 */ 8847 if (num_blocks == 0) { 8848 ctl_set_success(ctsio); 8849 ctl_done((union ctl_io *)ctsio); 8850 return (CTL_RETVAL_COMPLETE); 8851 } 8852 8853 /* Set FUA and/or DPO if caches are disabled. */ 8854 if (isread) { 8855 if ((lun->mode_pages.caching_page[CTL_PAGE_CURRENT].flags1 & 8856 SCP_RCD) != 0) 8857 flags |= CTL_LLF_FUA | CTL_LLF_DPO; 8858 } else { 8859 if ((lun->mode_pages.caching_page[CTL_PAGE_CURRENT].flags1 & 8860 SCP_WCE) == 0) 8861 flags |= CTL_LLF_FUA; 8862 } 8863 8864 lbalen = (struct ctl_lba_len_flags *) 8865 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 8866 lbalen->lba = lba; 8867 lbalen->len = num_blocks; 8868 lbalen->flags = (isread ? CTL_LLF_READ : CTL_LLF_WRITE) | flags; 8869 8870 ctsio->kern_total_len = num_blocks * lun->be_lun->blocksize; 8871 ctsio->kern_rel_offset = 0; 8872 8873 CTL_DEBUG_PRINT(("ctl_read_write: calling data_submit()\n")); 8874 8875 retval = lun->backend->data_submit((union ctl_io *)ctsio); 8876 return (retval); 8877} 8878 8879static int 8880ctl_cnw_cont(union ctl_io *io) 8881{ 8882 struct ctl_scsiio *ctsio; 8883 struct ctl_lun *lun; 8884 struct ctl_lba_len_flags *lbalen; 8885 int retval; 8886 8887 ctsio = &io->scsiio; 8888 ctsio->io_hdr.status = CTL_STATUS_NONE; 8889 ctsio->io_hdr.flags &= ~CTL_FLAG_IO_CONT; 8890 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 8891 lbalen = (struct ctl_lba_len_flags *) 8892 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 8893 lbalen->flags &= ~CTL_LLF_COMPARE; 8894 lbalen->flags |= CTL_LLF_WRITE; 8895 8896 CTL_DEBUG_PRINT(("ctl_cnw_cont: calling data_submit()\n")); 8897 retval = lun->backend->data_submit((union ctl_io *)ctsio); 8898 return (retval); 8899} 8900 8901int 8902ctl_cnw(struct ctl_scsiio *ctsio) 8903{ 8904 struct ctl_lun *lun; 8905 struct ctl_lba_len_flags *lbalen; 8906 uint64_t lba; 8907 uint32_t num_blocks; 8908 int flags, retval; 8909 8910 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 8911 8912 CTL_DEBUG_PRINT(("ctl_cnw: command: %#x\n", ctsio->cdb[0])); 8913 8914 flags = 0; 8915 switch (ctsio->cdb[0]) { 8916 case COMPARE_AND_WRITE: { 8917 struct scsi_compare_and_write *cdb; 8918 8919 cdb = (struct scsi_compare_and_write *)ctsio->cdb; 8920 if (cdb->byte2 & SRW10_FUA) 8921 flags |= CTL_LLF_FUA; 8922 if (cdb->byte2 & SRW10_DPO) 8923 flags |= CTL_LLF_DPO; 8924 lba = scsi_8btou64(cdb->addr); 8925 num_blocks = cdb->length; 8926 break; 8927 } 8928 default: 8929 /* 8930 * We got a command we don't support. This shouldn't 8931 * happen, commands should be filtered out above us. 8932 */ 8933 ctl_set_invalid_opcode(ctsio); 8934 ctl_done((union ctl_io *)ctsio); 8935 8936 return (CTL_RETVAL_COMPLETE); 8937 break; /* NOTREACHED */ 8938 } 8939 8940 /* 8941 * The first check is to make sure we're in bounds, the second 8942 * check is to catch wrap-around problems. If the lba + num blocks 8943 * is less than the lba, then we've wrapped around and the block 8944 * range is invalid anyway. 8945 */ 8946 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 8947 || ((lba + num_blocks) < lba)) { 8948 ctl_set_lba_out_of_range(ctsio); 8949 ctl_done((union ctl_io *)ctsio); 8950 return (CTL_RETVAL_COMPLETE); 8951 } 8952 8953 /* 8954 * According to SBC-3, a transfer length of 0 is not an error. 8955 */ 8956 if (num_blocks == 0) { 8957 ctl_set_success(ctsio); 8958 ctl_done((union ctl_io *)ctsio); 8959 return (CTL_RETVAL_COMPLETE); 8960 } 8961 8962 /* Set FUA if write cache is disabled. */ 8963 if ((lun->mode_pages.caching_page[CTL_PAGE_CURRENT].flags1 & 8964 SCP_WCE) == 0) 8965 flags |= CTL_LLF_FUA; 8966 8967 ctsio->kern_total_len = 2 * num_blocks * lun->be_lun->blocksize; 8968 ctsio->kern_rel_offset = 0; 8969 8970 /* 8971 * Set the IO_CONT flag, so that if this I/O gets passed to 8972 * ctl_data_submit_done(), it'll get passed back to 8973 * ctl_ctl_cnw_cont() for further processing. 8974 */ 8975 ctsio->io_hdr.flags |= CTL_FLAG_IO_CONT; 8976 ctsio->io_cont = ctl_cnw_cont; 8977 8978 lbalen = (struct ctl_lba_len_flags *) 8979 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 8980 lbalen->lba = lba; 8981 lbalen->len = num_blocks; 8982 lbalen->flags = CTL_LLF_COMPARE | flags; 8983 8984 CTL_DEBUG_PRINT(("ctl_cnw: calling data_submit()\n")); 8985 retval = lun->backend->data_submit((union ctl_io *)ctsio); 8986 return (retval); 8987} 8988 8989int 8990ctl_verify(struct ctl_scsiio *ctsio) 8991{ 8992 struct ctl_lun *lun; 8993 struct ctl_lba_len_flags *lbalen; 8994 uint64_t lba; 8995 uint32_t num_blocks; 8996 int bytchk, flags; 8997 int retval; 8998 8999 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9000 9001 CTL_DEBUG_PRINT(("ctl_verify: command: %#x\n", ctsio->cdb[0])); 9002 9003 bytchk = 0; 9004 flags = CTL_LLF_FUA; 9005 switch (ctsio->cdb[0]) { 9006 case VERIFY_10: { 9007 struct scsi_verify_10 *cdb; 9008 9009 cdb = (struct scsi_verify_10 *)ctsio->cdb; 9010 if (cdb->byte2 & SVFY_BYTCHK) 9011 bytchk = 1; 9012 if (cdb->byte2 & SVFY_DPO) 9013 flags |= CTL_LLF_DPO; 9014 lba = scsi_4btoul(cdb->addr); 9015 num_blocks = scsi_2btoul(cdb->length); 9016 break; 9017 } 9018 case VERIFY_12: { 9019 struct scsi_verify_12 *cdb; 9020 9021 cdb = (struct scsi_verify_12 *)ctsio->cdb; 9022 if (cdb->byte2 & SVFY_BYTCHK) 9023 bytchk = 1; 9024 if (cdb->byte2 & SVFY_DPO) 9025 flags |= CTL_LLF_DPO; 9026 lba = scsi_4btoul(cdb->addr); 9027 num_blocks = scsi_4btoul(cdb->length); 9028 break; 9029 } 9030 case VERIFY_16: { 9031 struct scsi_rw_16 *cdb; 9032 9033 cdb = (struct scsi_rw_16 *)ctsio->cdb; 9034 if (cdb->byte2 & SVFY_BYTCHK) 9035 bytchk = 1; 9036 if (cdb->byte2 & SVFY_DPO) 9037 flags |= CTL_LLF_DPO; 9038 lba = scsi_8btou64(cdb->addr); 9039 num_blocks = scsi_4btoul(cdb->length); 9040 break; 9041 } 9042 default: 9043 /* 9044 * We got a command we don't support. This shouldn't 9045 * happen, commands should be filtered out above us. 9046 */ 9047 ctl_set_invalid_opcode(ctsio); 9048 ctl_done((union ctl_io *)ctsio); 9049 return (CTL_RETVAL_COMPLETE); 9050 } 9051 9052 /* 9053 * The first check is to make sure we're in bounds, the second 9054 * check is to catch wrap-around problems. If the lba + num blocks 9055 * is less than the lba, then we've wrapped around and the block 9056 * range is invalid anyway. 9057 */ 9058 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 9059 || ((lba + num_blocks) < lba)) { 9060 ctl_set_lba_out_of_range(ctsio); 9061 ctl_done((union ctl_io *)ctsio); 9062 return (CTL_RETVAL_COMPLETE); 9063 } 9064 9065 /* 9066 * According to SBC-3, a transfer length of 0 is not an error. 9067 */ 9068 if (num_blocks == 0) { 9069 ctl_set_success(ctsio); 9070 ctl_done((union ctl_io *)ctsio); 9071 return (CTL_RETVAL_COMPLETE); 9072 } 9073 9074 lbalen = (struct ctl_lba_len_flags *) 9075 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 9076 lbalen->lba = lba; 9077 lbalen->len = num_blocks; 9078 if (bytchk) { 9079 lbalen->flags = CTL_LLF_COMPARE | flags; 9080 ctsio->kern_total_len = num_blocks * lun->be_lun->blocksize; 9081 } else { 9082 lbalen->flags = CTL_LLF_VERIFY | flags; 9083 ctsio->kern_total_len = 0; 9084 } 9085 ctsio->kern_rel_offset = 0; 9086 9087 CTL_DEBUG_PRINT(("ctl_verify: calling data_submit()\n")); 9088 retval = lun->backend->data_submit((union ctl_io *)ctsio); 9089 return (retval); 9090} 9091 9092int 9093ctl_report_luns(struct ctl_scsiio *ctsio) 9094{ 9095 struct ctl_softc *softc; 9096 struct scsi_report_luns *cdb; 9097 struct scsi_report_luns_data *lun_data; 9098 struct ctl_lun *lun, *request_lun; 9099 struct ctl_port *port; 9100 int num_luns, retval; 9101 uint32_t alloc_len, lun_datalen; 9102 int num_filled; 9103 uint32_t initidx, targ_lun_id, lun_id; 9104 9105 retval = CTL_RETVAL_COMPLETE; 9106 cdb = (struct scsi_report_luns *)ctsio->cdb; 9107 port = ctl_io_port(&ctsio->io_hdr); 9108 softc = port->ctl_softc; 9109 9110 CTL_DEBUG_PRINT(("ctl_report_luns\n")); 9111 9112 mtx_lock(&softc->ctl_lock); 9113 num_luns = 0; 9114 for (targ_lun_id = 0; targ_lun_id < CTL_MAX_LUNS; targ_lun_id++) { 9115 if (ctl_lun_map_from_port(port, targ_lun_id) < CTL_MAX_LUNS) 9116 num_luns++; 9117 } 9118 mtx_unlock(&softc->ctl_lock); 9119 9120 switch (cdb->select_report) { 9121 case RPL_REPORT_DEFAULT: 9122 case RPL_REPORT_ALL: 9123 case RPL_REPORT_NONSUBSID: 9124 break; 9125 case RPL_REPORT_WELLKNOWN: 9126 case RPL_REPORT_ADMIN: 9127 case RPL_REPORT_CONGLOM: 9128 num_luns = 0; 9129 break; 9130 default: 9131 ctl_set_invalid_field(ctsio, 9132 /*sks_valid*/ 1, 9133 /*command*/ 1, 9134 /*field*/ 2, 9135 /*bit_valid*/ 0, 9136 /*bit*/ 0); 9137 ctl_done((union ctl_io *)ctsio); 9138 return (retval); 9139 break; /* NOTREACHED */ 9140 } 9141 9142 alloc_len = scsi_4btoul(cdb->length); 9143 /* 9144 * The initiator has to allocate at least 16 bytes for this request, 9145 * so he can at least get the header and the first LUN. Otherwise 9146 * we reject the request (per SPC-3 rev 14, section 6.21). 9147 */ 9148 if (alloc_len < (sizeof(struct scsi_report_luns_data) + 9149 sizeof(struct scsi_report_luns_lundata))) { 9150 ctl_set_invalid_field(ctsio, 9151 /*sks_valid*/ 1, 9152 /*command*/ 1, 9153 /*field*/ 6, 9154 /*bit_valid*/ 0, 9155 /*bit*/ 0); 9156 ctl_done((union ctl_io *)ctsio); 9157 return (retval); 9158 } 9159 9160 request_lun = (struct ctl_lun *) 9161 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9162 9163 lun_datalen = sizeof(*lun_data) + 9164 (num_luns * sizeof(struct scsi_report_luns_lundata)); 9165 9166 ctsio->kern_data_ptr = malloc(lun_datalen, M_CTL, M_WAITOK | M_ZERO); 9167 lun_data = (struct scsi_report_luns_data *)ctsio->kern_data_ptr; 9168 ctsio->kern_sg_entries = 0; 9169 9170 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 9171 9172 mtx_lock(&softc->ctl_lock); 9173 for (targ_lun_id = 0, num_filled = 0; targ_lun_id < CTL_MAX_LUNS && num_filled < num_luns; targ_lun_id++) { 9174 lun_id = ctl_lun_map_from_port(port, targ_lun_id); 9175 if (lun_id >= CTL_MAX_LUNS) 9176 continue; 9177 lun = softc->ctl_luns[lun_id]; 9178 if (lun == NULL) 9179 continue; 9180 9181 be64enc(lun_data->luns[num_filled++].lundata, 9182 ctl_encode_lun(targ_lun_id)); 9183 9184 /* 9185 * According to SPC-3, rev 14 section 6.21: 9186 * 9187 * "The execution of a REPORT LUNS command to any valid and 9188 * installed logical unit shall clear the REPORTED LUNS DATA 9189 * HAS CHANGED unit attention condition for all logical 9190 * units of that target with respect to the requesting 9191 * initiator. A valid and installed logical unit is one 9192 * having a PERIPHERAL QUALIFIER of 000b in the standard 9193 * INQUIRY data (see 6.4.2)." 9194 * 9195 * If request_lun is NULL, the LUN this report luns command 9196 * was issued to is either disabled or doesn't exist. In that 9197 * case, we shouldn't clear any pending lun change unit 9198 * attention. 9199 */ 9200 if (request_lun != NULL) { 9201 mtx_lock(&lun->lun_lock); 9202 ctl_clr_ua(lun, initidx, CTL_UA_LUN_CHANGE); 9203 mtx_unlock(&lun->lun_lock); 9204 } 9205 } 9206 mtx_unlock(&softc->ctl_lock); 9207 9208 /* 9209 * It's quite possible that we've returned fewer LUNs than we allocated 9210 * space for. Trim it. 9211 */ 9212 lun_datalen = sizeof(*lun_data) + 9213 (num_filled * sizeof(struct scsi_report_luns_lundata)); 9214 9215 if (lun_datalen < alloc_len) { 9216 ctsio->residual = alloc_len - lun_datalen; 9217 ctsio->kern_data_len = lun_datalen; 9218 ctsio->kern_total_len = lun_datalen; 9219 } else { 9220 ctsio->residual = 0; 9221 ctsio->kern_data_len = alloc_len; 9222 ctsio->kern_total_len = alloc_len; 9223 } 9224 ctsio->kern_data_resid = 0; 9225 ctsio->kern_rel_offset = 0; 9226 ctsio->kern_sg_entries = 0; 9227 9228 /* 9229 * We set this to the actual data length, regardless of how much 9230 * space we actually have to return results. If the user looks at 9231 * this value, he'll know whether or not he allocated enough space 9232 * and reissue the command if necessary. We don't support well 9233 * known logical units, so if the user asks for that, return none. 9234 */ 9235 scsi_ulto4b(lun_datalen - 8, lun_data->length); 9236 9237 /* 9238 * We can only return SCSI_STATUS_CHECK_COND when we can't satisfy 9239 * this request. 9240 */ 9241 ctl_set_success(ctsio); 9242 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9243 ctsio->be_move_done = ctl_config_move_done; 9244 ctl_datamove((union ctl_io *)ctsio); 9245 return (retval); 9246} 9247 9248int 9249ctl_request_sense(struct ctl_scsiio *ctsio) 9250{ 9251 struct scsi_request_sense *cdb; 9252 struct scsi_sense_data *sense_ptr; 9253 struct ctl_softc *ctl_softc; 9254 struct ctl_lun *lun; 9255 uint32_t initidx; 9256 int have_error; 9257 scsi_sense_data_type sense_format; 9258 ctl_ua_type ua_type; 9259 9260 cdb = (struct scsi_request_sense *)ctsio->cdb; 9261 9262 ctl_softc = control_softc; 9263 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9264 9265 CTL_DEBUG_PRINT(("ctl_request_sense\n")); 9266 9267 /* 9268 * Determine which sense format the user wants. 9269 */ 9270 if (cdb->byte2 & SRS_DESC) 9271 sense_format = SSD_TYPE_DESC; 9272 else 9273 sense_format = SSD_TYPE_FIXED; 9274 9275 ctsio->kern_data_ptr = malloc(sizeof(*sense_ptr), M_CTL, M_WAITOK); 9276 sense_ptr = (struct scsi_sense_data *)ctsio->kern_data_ptr; 9277 ctsio->kern_sg_entries = 0; 9278 9279 /* 9280 * struct scsi_sense_data, which is currently set to 256 bytes, is 9281 * larger than the largest allowed value for the length field in the 9282 * REQUEST SENSE CDB, which is 252 bytes as of SPC-4. 9283 */ 9284 ctsio->residual = 0; 9285 ctsio->kern_data_len = cdb->length; 9286 ctsio->kern_total_len = cdb->length; 9287 9288 ctsio->kern_data_resid = 0; 9289 ctsio->kern_rel_offset = 0; 9290 ctsio->kern_sg_entries = 0; 9291 9292 /* 9293 * If we don't have a LUN, we don't have any pending sense. 9294 */ 9295 if (lun == NULL) 9296 goto no_sense; 9297 9298 have_error = 0; 9299 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 9300 /* 9301 * Check for pending sense, and then for pending unit attentions. 9302 * Pending sense gets returned first, then pending unit attentions. 9303 */ 9304 mtx_lock(&lun->lun_lock); 9305#ifdef CTL_WITH_CA 9306 if (ctl_is_set(lun->have_ca, initidx)) { 9307 scsi_sense_data_type stored_format; 9308 9309 /* 9310 * Check to see which sense format was used for the stored 9311 * sense data. 9312 */ 9313 stored_format = scsi_sense_type(&lun->pending_sense[initidx]); 9314 9315 /* 9316 * If the user requested a different sense format than the 9317 * one we stored, then we need to convert it to the other 9318 * format. If we're going from descriptor to fixed format 9319 * sense data, we may lose things in translation, depending 9320 * on what options were used. 9321 * 9322 * If the stored format is SSD_TYPE_NONE (i.e. invalid), 9323 * for some reason we'll just copy it out as-is. 9324 */ 9325 if ((stored_format == SSD_TYPE_FIXED) 9326 && (sense_format == SSD_TYPE_DESC)) 9327 ctl_sense_to_desc((struct scsi_sense_data_fixed *) 9328 &lun->pending_sense[initidx], 9329 (struct scsi_sense_data_desc *)sense_ptr); 9330 else if ((stored_format == SSD_TYPE_DESC) 9331 && (sense_format == SSD_TYPE_FIXED)) 9332 ctl_sense_to_fixed((struct scsi_sense_data_desc *) 9333 &lun->pending_sense[initidx], 9334 (struct scsi_sense_data_fixed *)sense_ptr); 9335 else 9336 memcpy(sense_ptr, &lun->pending_sense[initidx], 9337 MIN(sizeof(*sense_ptr), 9338 sizeof(lun->pending_sense[initidx]))); 9339 9340 ctl_clear_mask(lun->have_ca, initidx); 9341 have_error = 1; 9342 } else 9343#endif 9344 { 9345 ua_type = ctl_build_ua(lun, initidx, sense_ptr, sense_format); 9346 if (ua_type != CTL_UA_NONE) 9347 have_error = 1; 9348 if (ua_type == CTL_UA_LUN_CHANGE) { 9349 mtx_unlock(&lun->lun_lock); 9350 mtx_lock(&ctl_softc->ctl_lock); 9351 ctl_clr_ua_allluns(ctl_softc, initidx, ua_type); 9352 mtx_unlock(&ctl_softc->ctl_lock); 9353 mtx_lock(&lun->lun_lock); 9354 } 9355 9356 } 9357 mtx_unlock(&lun->lun_lock); 9358 9359 /* 9360 * We already have a pending error, return it. 9361 */ 9362 if (have_error != 0) { 9363 /* 9364 * We report the SCSI status as OK, since the status of the 9365 * request sense command itself is OK. 9366 * We report 0 for the sense length, because we aren't doing 9367 * autosense in this case. We're reporting sense as 9368 * parameter data. 9369 */ 9370 ctl_set_success(ctsio); 9371 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9372 ctsio->be_move_done = ctl_config_move_done; 9373 ctl_datamove((union ctl_io *)ctsio); 9374 return (CTL_RETVAL_COMPLETE); 9375 } 9376 9377no_sense: 9378 9379 /* 9380 * No sense information to report, so we report that everything is 9381 * okay. 9382 */ 9383 ctl_set_sense_data(sense_ptr, 9384 lun, 9385 sense_format, 9386 /*current_error*/ 1, 9387 /*sense_key*/ SSD_KEY_NO_SENSE, 9388 /*asc*/ 0x00, 9389 /*ascq*/ 0x00, 9390 SSD_ELEM_NONE); 9391 9392 /* 9393 * We report 0 for the sense length, because we aren't doing 9394 * autosense in this case. We're reporting sense as parameter data. 9395 */ 9396 ctl_set_success(ctsio); 9397 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9398 ctsio->be_move_done = ctl_config_move_done; 9399 ctl_datamove((union ctl_io *)ctsio); 9400 return (CTL_RETVAL_COMPLETE); 9401} 9402 9403int 9404ctl_tur(struct ctl_scsiio *ctsio) 9405{ 9406 9407 CTL_DEBUG_PRINT(("ctl_tur\n")); 9408 9409 ctl_set_success(ctsio); 9410 ctl_done((union ctl_io *)ctsio); 9411 9412 return (CTL_RETVAL_COMPLETE); 9413} 9414 9415/* 9416 * SCSI VPD page 0x00, the Supported VPD Pages page. 9417 */ 9418static int 9419ctl_inquiry_evpd_supported(struct ctl_scsiio *ctsio, int alloc_len) 9420{ 9421 struct scsi_vpd_supported_pages *pages; 9422 int sup_page_size; 9423 struct ctl_lun *lun; 9424 int p; 9425 9426 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9427 9428 sup_page_size = sizeof(struct scsi_vpd_supported_pages) * 9429 SCSI_EVPD_NUM_SUPPORTED_PAGES; 9430 ctsio->kern_data_ptr = malloc(sup_page_size, M_CTL, M_WAITOK | M_ZERO); 9431 pages = (struct scsi_vpd_supported_pages *)ctsio->kern_data_ptr; 9432 ctsio->kern_sg_entries = 0; 9433 9434 if (sup_page_size < alloc_len) { 9435 ctsio->residual = alloc_len - sup_page_size; 9436 ctsio->kern_data_len = sup_page_size; 9437 ctsio->kern_total_len = sup_page_size; 9438 } else { 9439 ctsio->residual = 0; 9440 ctsio->kern_data_len = alloc_len; 9441 ctsio->kern_total_len = alloc_len; 9442 } 9443 ctsio->kern_data_resid = 0; 9444 ctsio->kern_rel_offset = 0; 9445 ctsio->kern_sg_entries = 0; 9446 9447 /* 9448 * The control device is always connected. The disk device, on the 9449 * other hand, may not be online all the time. Need to change this 9450 * to figure out whether the disk device is actually online or not. 9451 */ 9452 if (lun != NULL) 9453 pages->device = (SID_QUAL_LU_CONNECTED << 5) | 9454 lun->be_lun->lun_type; 9455 else 9456 pages->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9457 9458 p = 0; 9459 /* Supported VPD pages */ 9460 pages->page_list[p++] = SVPD_SUPPORTED_PAGES; 9461 /* Serial Number */ 9462 pages->page_list[p++] = SVPD_UNIT_SERIAL_NUMBER; 9463 /* Device Identification */ 9464 pages->page_list[p++] = SVPD_DEVICE_ID; 9465 /* Extended INQUIRY Data */ 9466 pages->page_list[p++] = SVPD_EXTENDED_INQUIRY_DATA; 9467 /* Mode Page Policy */ 9468 pages->page_list[p++] = SVPD_MODE_PAGE_POLICY; 9469 /* SCSI Ports */ 9470 pages->page_list[p++] = SVPD_SCSI_PORTS; 9471 /* Third-party Copy */ 9472 pages->page_list[p++] = SVPD_SCSI_TPC; 9473 if (lun != NULL && lun->be_lun->lun_type == T_DIRECT) { 9474 /* Block limits */ 9475 pages->page_list[p++] = SVPD_BLOCK_LIMITS; 9476 /* Block Device Characteristics */ 9477 pages->page_list[p++] = SVPD_BDC; 9478 /* Logical Block Provisioning */ 9479 pages->page_list[p++] = SVPD_LBP; 9480 } 9481 pages->length = p; 9482 9483 ctl_set_success(ctsio); 9484 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9485 ctsio->be_move_done = ctl_config_move_done; 9486 ctl_datamove((union ctl_io *)ctsio); 9487 return (CTL_RETVAL_COMPLETE); 9488} 9489 9490/* 9491 * SCSI VPD page 0x80, the Unit Serial Number page. 9492 */ 9493static int 9494ctl_inquiry_evpd_serial(struct ctl_scsiio *ctsio, int alloc_len) 9495{ 9496 struct scsi_vpd_unit_serial_number *sn_ptr; 9497 struct ctl_lun *lun; 9498 int data_len; 9499 9500 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9501 9502 data_len = 4 + CTL_SN_LEN; 9503 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9504 sn_ptr = (struct scsi_vpd_unit_serial_number *)ctsio->kern_data_ptr; 9505 if (data_len < alloc_len) { 9506 ctsio->residual = alloc_len - data_len; 9507 ctsio->kern_data_len = data_len; 9508 ctsio->kern_total_len = data_len; 9509 } else { 9510 ctsio->residual = 0; 9511 ctsio->kern_data_len = alloc_len; 9512 ctsio->kern_total_len = alloc_len; 9513 } 9514 ctsio->kern_data_resid = 0; 9515 ctsio->kern_rel_offset = 0; 9516 ctsio->kern_sg_entries = 0; 9517 9518 /* 9519 * The control device is always connected. The disk device, on the 9520 * other hand, may not be online all the time. Need to change this 9521 * to figure out whether the disk device is actually online or not. 9522 */ 9523 if (lun != NULL) 9524 sn_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9525 lun->be_lun->lun_type; 9526 else 9527 sn_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9528 9529 sn_ptr->page_code = SVPD_UNIT_SERIAL_NUMBER; 9530 sn_ptr->length = CTL_SN_LEN; 9531 /* 9532 * If we don't have a LUN, we just leave the serial number as 9533 * all spaces. 9534 */ 9535 if (lun != NULL) { 9536 strncpy((char *)sn_ptr->serial_num, 9537 (char *)lun->be_lun->serial_num, CTL_SN_LEN); 9538 } else 9539 memset(sn_ptr->serial_num, 0x20, CTL_SN_LEN); 9540 9541 ctl_set_success(ctsio); 9542 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9543 ctsio->be_move_done = ctl_config_move_done; 9544 ctl_datamove((union ctl_io *)ctsio); 9545 return (CTL_RETVAL_COMPLETE); 9546} 9547 9548 9549/* 9550 * SCSI VPD page 0x86, the Extended INQUIRY Data page. 9551 */ 9552static int 9553ctl_inquiry_evpd_eid(struct ctl_scsiio *ctsio, int alloc_len) 9554{ 9555 struct scsi_vpd_extended_inquiry_data *eid_ptr; 9556 struct ctl_lun *lun; 9557 int data_len; 9558 9559 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9560 9561 data_len = sizeof(struct scsi_vpd_extended_inquiry_data); 9562 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9563 eid_ptr = (struct scsi_vpd_extended_inquiry_data *)ctsio->kern_data_ptr; 9564 ctsio->kern_sg_entries = 0; 9565 9566 if (data_len < alloc_len) { 9567 ctsio->residual = alloc_len - data_len; 9568 ctsio->kern_data_len = data_len; 9569 ctsio->kern_total_len = data_len; 9570 } else { 9571 ctsio->residual = 0; 9572 ctsio->kern_data_len = alloc_len; 9573 ctsio->kern_total_len = alloc_len; 9574 } 9575 ctsio->kern_data_resid = 0; 9576 ctsio->kern_rel_offset = 0; 9577 ctsio->kern_sg_entries = 0; 9578 9579 /* 9580 * The control device is always connected. The disk device, on the 9581 * other hand, may not be online all the time. 9582 */ 9583 if (lun != NULL) 9584 eid_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9585 lun->be_lun->lun_type; 9586 else 9587 eid_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9588 eid_ptr->page_code = SVPD_EXTENDED_INQUIRY_DATA; 9589 scsi_ulto2b(data_len - 4, eid_ptr->page_length); 9590 /* 9591 * We support head of queue, ordered and simple tags. 9592 */ 9593 eid_ptr->flags2 = SVPD_EID_HEADSUP | SVPD_EID_ORDSUP | SVPD_EID_SIMPSUP; 9594 /* 9595 * Volatile cache supported. 9596 */ 9597 eid_ptr->flags3 = SVPD_EID_V_SUP; 9598 9599 /* 9600 * This means that we clear the REPORTED LUNS DATA HAS CHANGED unit 9601 * attention for a particular IT nexus on all LUNs once we report 9602 * it to that nexus once. This bit is required as of SPC-4. 9603 */ 9604 eid_ptr->flags4 = SVPD_EID_LUICLT; 9605 9606 /* 9607 * XXX KDM in order to correctly answer this, we would need 9608 * information from the SIM to determine how much sense data it 9609 * can send. So this would really be a path inquiry field, most 9610 * likely. This can be set to a maximum of 252 according to SPC-4, 9611 * but the hardware may or may not be able to support that much. 9612 * 0 just means that the maximum sense data length is not reported. 9613 */ 9614 eid_ptr->max_sense_length = 0; 9615 9616 ctl_set_success(ctsio); 9617 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9618 ctsio->be_move_done = ctl_config_move_done; 9619 ctl_datamove((union ctl_io *)ctsio); 9620 return (CTL_RETVAL_COMPLETE); 9621} 9622 9623static int 9624ctl_inquiry_evpd_mpp(struct ctl_scsiio *ctsio, int alloc_len) 9625{ 9626 struct scsi_vpd_mode_page_policy *mpp_ptr; 9627 struct ctl_lun *lun; 9628 int data_len; 9629 9630 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9631 9632 data_len = sizeof(struct scsi_vpd_mode_page_policy) + 9633 sizeof(struct scsi_vpd_mode_page_policy_descr); 9634 9635 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9636 mpp_ptr = (struct scsi_vpd_mode_page_policy *)ctsio->kern_data_ptr; 9637 ctsio->kern_sg_entries = 0; 9638 9639 if (data_len < alloc_len) { 9640 ctsio->residual = alloc_len - data_len; 9641 ctsio->kern_data_len = data_len; 9642 ctsio->kern_total_len = data_len; 9643 } else { 9644 ctsio->residual = 0; 9645 ctsio->kern_data_len = alloc_len; 9646 ctsio->kern_total_len = alloc_len; 9647 } 9648 ctsio->kern_data_resid = 0; 9649 ctsio->kern_rel_offset = 0; 9650 ctsio->kern_sg_entries = 0; 9651 9652 /* 9653 * The control device is always connected. The disk device, on the 9654 * other hand, may not be online all the time. 9655 */ 9656 if (lun != NULL) 9657 mpp_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9658 lun->be_lun->lun_type; 9659 else 9660 mpp_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9661 mpp_ptr->page_code = SVPD_MODE_PAGE_POLICY; 9662 scsi_ulto2b(data_len - 4, mpp_ptr->page_length); 9663 mpp_ptr->descr[0].page_code = 0x3f; 9664 mpp_ptr->descr[0].subpage_code = 0xff; 9665 mpp_ptr->descr[0].policy = SVPD_MPP_SHARED; 9666 9667 ctl_set_success(ctsio); 9668 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9669 ctsio->be_move_done = ctl_config_move_done; 9670 ctl_datamove((union ctl_io *)ctsio); 9671 return (CTL_RETVAL_COMPLETE); 9672} 9673 9674/* 9675 * SCSI VPD page 0x83, the Device Identification page. 9676 */ 9677static int 9678ctl_inquiry_evpd_devid(struct ctl_scsiio *ctsio, int alloc_len) 9679{ 9680 struct scsi_vpd_device_id *devid_ptr; 9681 struct scsi_vpd_id_descriptor *desc; 9682 struct ctl_softc *softc; 9683 struct ctl_lun *lun; 9684 struct ctl_port *port; 9685 int data_len, g; 9686 uint8_t proto; 9687 9688 softc = control_softc; 9689 9690 port = ctl_io_port(&ctsio->io_hdr); 9691 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9692 9693 data_len = sizeof(struct scsi_vpd_device_id) + 9694 sizeof(struct scsi_vpd_id_descriptor) + 9695 sizeof(struct scsi_vpd_id_rel_trgt_port_id) + 9696 sizeof(struct scsi_vpd_id_descriptor) + 9697 sizeof(struct scsi_vpd_id_trgt_port_grp_id); 9698 if (lun && lun->lun_devid) 9699 data_len += lun->lun_devid->len; 9700 if (port && port->port_devid) 9701 data_len += port->port_devid->len; 9702 if (port && port->target_devid) 9703 data_len += port->target_devid->len; 9704 9705 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9706 devid_ptr = (struct scsi_vpd_device_id *)ctsio->kern_data_ptr; 9707 ctsio->kern_sg_entries = 0; 9708 9709 if (data_len < alloc_len) { 9710 ctsio->residual = alloc_len - data_len; 9711 ctsio->kern_data_len = data_len; 9712 ctsio->kern_total_len = data_len; 9713 } else { 9714 ctsio->residual = 0; 9715 ctsio->kern_data_len = alloc_len; 9716 ctsio->kern_total_len = alloc_len; 9717 } 9718 ctsio->kern_data_resid = 0; 9719 ctsio->kern_rel_offset = 0; 9720 ctsio->kern_sg_entries = 0; 9721 9722 /* 9723 * The control device is always connected. The disk device, on the 9724 * other hand, may not be online all the time. 9725 */ 9726 if (lun != NULL) 9727 devid_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9728 lun->be_lun->lun_type; 9729 else 9730 devid_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9731 devid_ptr->page_code = SVPD_DEVICE_ID; 9732 scsi_ulto2b(data_len - 4, devid_ptr->length); 9733 9734 if (port && port->port_type == CTL_PORT_FC) 9735 proto = SCSI_PROTO_FC << 4; 9736 else if (port && port->port_type == CTL_PORT_ISCSI) 9737 proto = SCSI_PROTO_ISCSI << 4; 9738 else 9739 proto = SCSI_PROTO_SPI << 4; 9740 desc = (struct scsi_vpd_id_descriptor *)devid_ptr->desc_list; 9741 9742 /* 9743 * We're using a LUN association here. i.e., this device ID is a 9744 * per-LUN identifier. 9745 */ 9746 if (lun && lun->lun_devid) { 9747 memcpy(desc, lun->lun_devid->data, lun->lun_devid->len); 9748 desc = (struct scsi_vpd_id_descriptor *)((uint8_t *)desc + 9749 lun->lun_devid->len); 9750 } 9751 9752 /* 9753 * This is for the WWPN which is a port association. 9754 */ 9755 if (port && port->port_devid) { 9756 memcpy(desc, port->port_devid->data, port->port_devid->len); 9757 desc = (struct scsi_vpd_id_descriptor *)((uint8_t *)desc + 9758 port->port_devid->len); 9759 } 9760 9761 /* 9762 * This is for the Relative Target Port(type 4h) identifier 9763 */ 9764 desc->proto_codeset = proto | SVPD_ID_CODESET_BINARY; 9765 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_PORT | 9766 SVPD_ID_TYPE_RELTARG; 9767 desc->length = 4; 9768 scsi_ulto2b(ctsio->io_hdr.nexus.targ_port, &desc->identifier[2]); 9769 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 9770 sizeof(struct scsi_vpd_id_rel_trgt_port_id)); 9771 9772 /* 9773 * This is for the Target Port Group(type 5h) identifier 9774 */ 9775 desc->proto_codeset = proto | SVPD_ID_CODESET_BINARY; 9776 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_PORT | 9777 SVPD_ID_TYPE_TPORTGRP; 9778 desc->length = 4; 9779 if (softc->is_single || 9780 (port && port->status & CTL_PORT_STATUS_HA_SHARED)) 9781 g = 1; 9782 else 9783 g = 2 + ctsio->io_hdr.nexus.targ_port / softc->port_cnt; 9784 scsi_ulto2b(g, &desc->identifier[2]); 9785 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 9786 sizeof(struct scsi_vpd_id_trgt_port_grp_id)); 9787 9788 /* 9789 * This is for the Target identifier 9790 */ 9791 if (port && port->target_devid) { 9792 memcpy(desc, port->target_devid->data, port->target_devid->len); 9793 } 9794 9795 ctl_set_success(ctsio); 9796 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9797 ctsio->be_move_done = ctl_config_move_done; 9798 ctl_datamove((union ctl_io *)ctsio); 9799 return (CTL_RETVAL_COMPLETE); 9800} 9801 9802static int 9803ctl_inquiry_evpd_scsi_ports(struct ctl_scsiio *ctsio, int alloc_len) 9804{ 9805 struct ctl_softc *softc = control_softc; 9806 struct scsi_vpd_scsi_ports *sp; 9807 struct scsi_vpd_port_designation *pd; 9808 struct scsi_vpd_port_designation_cont *pdc; 9809 struct ctl_lun *lun; 9810 struct ctl_port *port; 9811 int data_len, num_target_ports, iid_len, id_len; 9812 9813 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9814 9815 num_target_ports = 0; 9816 iid_len = 0; 9817 id_len = 0; 9818 mtx_lock(&softc->ctl_lock); 9819 STAILQ_FOREACH(port, &softc->port_list, links) { 9820 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 9821 continue; 9822 if (lun != NULL && 9823 ctl_lun_map_to_port(port, lun->lun) >= CTL_MAX_LUNS) 9824 continue; 9825 num_target_ports++; 9826 if (port->init_devid) 9827 iid_len += port->init_devid->len; 9828 if (port->port_devid) 9829 id_len += port->port_devid->len; 9830 } 9831 mtx_unlock(&softc->ctl_lock); 9832 9833 data_len = sizeof(struct scsi_vpd_scsi_ports) + 9834 num_target_ports * (sizeof(struct scsi_vpd_port_designation) + 9835 sizeof(struct scsi_vpd_port_designation_cont)) + iid_len + id_len; 9836 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9837 sp = (struct scsi_vpd_scsi_ports *)ctsio->kern_data_ptr; 9838 ctsio->kern_sg_entries = 0; 9839 9840 if (data_len < alloc_len) { 9841 ctsio->residual = alloc_len - data_len; 9842 ctsio->kern_data_len = data_len; 9843 ctsio->kern_total_len = data_len; 9844 } else { 9845 ctsio->residual = 0; 9846 ctsio->kern_data_len = alloc_len; 9847 ctsio->kern_total_len = alloc_len; 9848 } 9849 ctsio->kern_data_resid = 0; 9850 ctsio->kern_rel_offset = 0; 9851 ctsio->kern_sg_entries = 0; 9852 9853 /* 9854 * The control device is always connected. The disk device, on the 9855 * other hand, may not be online all the time. Need to change this 9856 * to figure out whether the disk device is actually online or not. 9857 */ 9858 if (lun != NULL) 9859 sp->device = (SID_QUAL_LU_CONNECTED << 5) | 9860 lun->be_lun->lun_type; 9861 else 9862 sp->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9863 9864 sp->page_code = SVPD_SCSI_PORTS; 9865 scsi_ulto2b(data_len - sizeof(struct scsi_vpd_scsi_ports), 9866 sp->page_length); 9867 pd = &sp->design[0]; 9868 9869 mtx_lock(&softc->ctl_lock); 9870 STAILQ_FOREACH(port, &softc->port_list, links) { 9871 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 9872 continue; 9873 if (lun != NULL && 9874 ctl_lun_map_to_port(port, lun->lun) >= CTL_MAX_LUNS) 9875 continue; 9876 scsi_ulto2b(port->targ_port, pd->relative_port_id); 9877 if (port->init_devid) { 9878 iid_len = port->init_devid->len; 9879 memcpy(pd->initiator_transportid, 9880 port->init_devid->data, port->init_devid->len); 9881 } else 9882 iid_len = 0; 9883 scsi_ulto2b(iid_len, pd->initiator_transportid_length); 9884 pdc = (struct scsi_vpd_port_designation_cont *) 9885 (&pd->initiator_transportid[iid_len]); 9886 if (port->port_devid) { 9887 id_len = port->port_devid->len; 9888 memcpy(pdc->target_port_descriptors, 9889 port->port_devid->data, port->port_devid->len); 9890 } else 9891 id_len = 0; 9892 scsi_ulto2b(id_len, pdc->target_port_descriptors_length); 9893 pd = (struct scsi_vpd_port_designation *) 9894 ((uint8_t *)pdc->target_port_descriptors + id_len); 9895 } 9896 mtx_unlock(&softc->ctl_lock); 9897 9898 ctl_set_success(ctsio); 9899 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9900 ctsio->be_move_done = ctl_config_move_done; 9901 ctl_datamove((union ctl_io *)ctsio); 9902 return (CTL_RETVAL_COMPLETE); 9903} 9904 9905static int 9906ctl_inquiry_evpd_block_limits(struct ctl_scsiio *ctsio, int alloc_len) 9907{ 9908 struct scsi_vpd_block_limits *bl_ptr; 9909 struct ctl_lun *lun; 9910 9911 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9912 9913 ctsio->kern_data_ptr = malloc(sizeof(*bl_ptr), M_CTL, M_WAITOK | M_ZERO); 9914 bl_ptr = (struct scsi_vpd_block_limits *)ctsio->kern_data_ptr; 9915 ctsio->kern_sg_entries = 0; 9916 9917 if (sizeof(*bl_ptr) < alloc_len) { 9918 ctsio->residual = alloc_len - sizeof(*bl_ptr); 9919 ctsio->kern_data_len = sizeof(*bl_ptr); 9920 ctsio->kern_total_len = sizeof(*bl_ptr); 9921 } else { 9922 ctsio->residual = 0; 9923 ctsio->kern_data_len = alloc_len; 9924 ctsio->kern_total_len = alloc_len; 9925 } 9926 ctsio->kern_data_resid = 0; 9927 ctsio->kern_rel_offset = 0; 9928 ctsio->kern_sg_entries = 0; 9929 9930 /* 9931 * The control device is always connected. The disk device, on the 9932 * other hand, may not be online all the time. Need to change this 9933 * to figure out whether the disk device is actually online or not. 9934 */ 9935 if (lun != NULL) 9936 bl_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9937 lun->be_lun->lun_type; 9938 else 9939 bl_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9940 9941 bl_ptr->page_code = SVPD_BLOCK_LIMITS; 9942 scsi_ulto2b(sizeof(*bl_ptr) - 4, bl_ptr->page_length); 9943 bl_ptr->max_cmp_write_len = 0xff; 9944 scsi_ulto4b(0xffffffff, bl_ptr->max_txfer_len); 9945 if (lun != NULL) { 9946 scsi_ulto4b(lun->be_lun->opttxferlen, bl_ptr->opt_txfer_len); 9947 if (lun->be_lun->flags & CTL_LUN_FLAG_UNMAP) { 9948 scsi_ulto4b(0xffffffff, bl_ptr->max_unmap_lba_cnt); 9949 scsi_ulto4b(0xffffffff, bl_ptr->max_unmap_blk_cnt); 9950 if (lun->be_lun->ublockexp != 0) { 9951 scsi_ulto4b((1 << lun->be_lun->ublockexp), 9952 bl_ptr->opt_unmap_grain); 9953 scsi_ulto4b(0x80000000 | lun->be_lun->ublockoff, 9954 bl_ptr->unmap_grain_align); 9955 } 9956 } 9957 scsi_ulto4b(lun->be_lun->atomicblock, 9958 bl_ptr->max_atomic_transfer_length); 9959 scsi_ulto4b(0, bl_ptr->atomic_alignment); 9960 scsi_ulto4b(0, bl_ptr->atomic_transfer_length_granularity); 9961 scsi_ulto4b(0, bl_ptr->max_atomic_transfer_length_with_atomic_boundary); 9962 scsi_ulto4b(0, bl_ptr->max_atomic_boundary_size); 9963 } 9964 scsi_u64to8b(UINT64_MAX, bl_ptr->max_write_same_length); 9965 9966 ctl_set_success(ctsio); 9967 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9968 ctsio->be_move_done = ctl_config_move_done; 9969 ctl_datamove((union ctl_io *)ctsio); 9970 return (CTL_RETVAL_COMPLETE); 9971} 9972 9973static int 9974ctl_inquiry_evpd_bdc(struct ctl_scsiio *ctsio, int alloc_len) 9975{ 9976 struct scsi_vpd_block_device_characteristics *bdc_ptr; 9977 struct ctl_lun *lun; 9978 const char *value; 9979 u_int i; 9980 9981 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9982 9983 ctsio->kern_data_ptr = malloc(sizeof(*bdc_ptr), M_CTL, M_WAITOK | M_ZERO); 9984 bdc_ptr = (struct scsi_vpd_block_device_characteristics *)ctsio->kern_data_ptr; 9985 ctsio->kern_sg_entries = 0; 9986 9987 if (sizeof(*bdc_ptr) < alloc_len) { 9988 ctsio->residual = alloc_len - sizeof(*bdc_ptr); 9989 ctsio->kern_data_len = sizeof(*bdc_ptr); 9990 ctsio->kern_total_len = sizeof(*bdc_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 bdc_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10007 lun->be_lun->lun_type; 10008 else 10009 bdc_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10010 bdc_ptr->page_code = SVPD_BDC; 10011 scsi_ulto2b(sizeof(*bdc_ptr) - 4, bdc_ptr->page_length); 10012 if (lun != NULL && 10013 (value = ctl_get_opt(&lun->be_lun->options, "rpm")) != NULL) 10014 i = strtol(value, NULL, 0); 10015 else 10016 i = CTL_DEFAULT_ROTATION_RATE; 10017 scsi_ulto2b(i, bdc_ptr->medium_rotation_rate); 10018 if (lun != NULL && 10019 (value = ctl_get_opt(&lun->be_lun->options, "formfactor")) != NULL) 10020 i = strtol(value, NULL, 0); 10021 else 10022 i = 0; 10023 bdc_ptr->wab_wac_ff = (i & 0x0f); 10024 bdc_ptr->flags = SVPD_FUAB | SVPD_VBULS; 10025 10026 ctl_set_success(ctsio); 10027 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10028 ctsio->be_move_done = ctl_config_move_done; 10029 ctl_datamove((union ctl_io *)ctsio); 10030 return (CTL_RETVAL_COMPLETE); 10031} 10032 10033static int 10034ctl_inquiry_evpd_lbp(struct ctl_scsiio *ctsio, int alloc_len) 10035{ 10036 struct scsi_vpd_logical_block_prov *lbp_ptr; 10037 struct ctl_lun *lun; 10038 10039 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10040 10041 ctsio->kern_data_ptr = malloc(sizeof(*lbp_ptr), M_CTL, M_WAITOK | M_ZERO); 10042 lbp_ptr = (struct scsi_vpd_logical_block_prov *)ctsio->kern_data_ptr; 10043 ctsio->kern_sg_entries = 0; 10044 10045 if (sizeof(*lbp_ptr) < alloc_len) { 10046 ctsio->residual = alloc_len - sizeof(*lbp_ptr); 10047 ctsio->kern_data_len = sizeof(*lbp_ptr); 10048 ctsio->kern_total_len = sizeof(*lbp_ptr); 10049 } else { 10050 ctsio->residual = 0; 10051 ctsio->kern_data_len = alloc_len; 10052 ctsio->kern_total_len = alloc_len; 10053 } 10054 ctsio->kern_data_resid = 0; 10055 ctsio->kern_rel_offset = 0; 10056 ctsio->kern_sg_entries = 0; 10057 10058 /* 10059 * The control device is always connected. The disk device, on the 10060 * other hand, may not be online all the time. Need to change this 10061 * to figure out whether the disk device is actually online or not. 10062 */ 10063 if (lun != NULL) 10064 lbp_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10065 lun->be_lun->lun_type; 10066 else 10067 lbp_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10068 10069 lbp_ptr->page_code = SVPD_LBP; 10070 scsi_ulto2b(sizeof(*lbp_ptr) - 4, lbp_ptr->page_length); 10071 lbp_ptr->threshold_exponent = CTL_LBP_EXPONENT; 10072 if (lun != NULL && lun->be_lun->flags & CTL_LUN_FLAG_UNMAP) { 10073 lbp_ptr->flags = SVPD_LBP_UNMAP | SVPD_LBP_WS16 | 10074 SVPD_LBP_WS10 | SVPD_LBP_RZ | SVPD_LBP_ANC_SUP; 10075 lbp_ptr->prov_type = SVPD_LBP_THIN; 10076 } 10077 10078 ctl_set_success(ctsio); 10079 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10080 ctsio->be_move_done = ctl_config_move_done; 10081 ctl_datamove((union ctl_io *)ctsio); 10082 return (CTL_RETVAL_COMPLETE); 10083} 10084 10085/* 10086 * INQUIRY with the EVPD bit set. 10087 */ 10088static int 10089ctl_inquiry_evpd(struct ctl_scsiio *ctsio) 10090{ 10091 struct ctl_lun *lun; 10092 struct scsi_inquiry *cdb; 10093 int alloc_len, retval; 10094 10095 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10096 cdb = (struct scsi_inquiry *)ctsio->cdb; 10097 alloc_len = scsi_2btoul(cdb->length); 10098 10099 switch (cdb->page_code) { 10100 case SVPD_SUPPORTED_PAGES: 10101 retval = ctl_inquiry_evpd_supported(ctsio, alloc_len); 10102 break; 10103 case SVPD_UNIT_SERIAL_NUMBER: 10104 retval = ctl_inquiry_evpd_serial(ctsio, alloc_len); 10105 break; 10106 case SVPD_DEVICE_ID: 10107 retval = ctl_inquiry_evpd_devid(ctsio, alloc_len); 10108 break; 10109 case SVPD_EXTENDED_INQUIRY_DATA: 10110 retval = ctl_inquiry_evpd_eid(ctsio, alloc_len); 10111 break; 10112 case SVPD_MODE_PAGE_POLICY: 10113 retval = ctl_inquiry_evpd_mpp(ctsio, alloc_len); 10114 break; 10115 case SVPD_SCSI_PORTS: 10116 retval = ctl_inquiry_evpd_scsi_ports(ctsio, alloc_len); 10117 break; 10118 case SVPD_SCSI_TPC: 10119 retval = ctl_inquiry_evpd_tpc(ctsio, alloc_len); 10120 break; 10121 case SVPD_BLOCK_LIMITS: 10122 if (lun == NULL || lun->be_lun->lun_type != T_DIRECT) 10123 goto err; 10124 retval = ctl_inquiry_evpd_block_limits(ctsio, alloc_len); 10125 break; 10126 case SVPD_BDC: 10127 if (lun == NULL || lun->be_lun->lun_type != T_DIRECT) 10128 goto err; 10129 retval = ctl_inquiry_evpd_bdc(ctsio, alloc_len); 10130 break; 10131 case SVPD_LBP: 10132 if (lun == NULL || lun->be_lun->lun_type != T_DIRECT) 10133 goto err; 10134 retval = ctl_inquiry_evpd_lbp(ctsio, alloc_len); 10135 break; 10136 default: 10137err: 10138 ctl_set_invalid_field(ctsio, 10139 /*sks_valid*/ 1, 10140 /*command*/ 1, 10141 /*field*/ 2, 10142 /*bit_valid*/ 0, 10143 /*bit*/ 0); 10144 ctl_done((union ctl_io *)ctsio); 10145 retval = CTL_RETVAL_COMPLETE; 10146 break; 10147 } 10148 10149 return (retval); 10150} 10151 10152/* 10153 * Standard INQUIRY data. 10154 */ 10155static int 10156ctl_inquiry_std(struct ctl_scsiio *ctsio) 10157{ 10158 struct scsi_inquiry_data *inq_ptr; 10159 struct scsi_inquiry *cdb; 10160 struct ctl_softc *softc = control_softc; 10161 struct ctl_port *port; 10162 struct ctl_lun *lun; 10163 char *val; 10164 uint32_t alloc_len, data_len; 10165 ctl_port_type port_type; 10166 10167 port = ctl_io_port(&ctsio->io_hdr); 10168 port_type = port->port_type; 10169 if (port_type == CTL_PORT_IOCTL || port_type == CTL_PORT_INTERNAL) 10170 port_type = CTL_PORT_SCSI; 10171 10172 lun = ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10173 cdb = (struct scsi_inquiry *)ctsio->cdb; 10174 alloc_len = scsi_2btoul(cdb->length); 10175 10176 /* 10177 * We malloc the full inquiry data size here and fill it 10178 * in. If the user only asks for less, we'll give him 10179 * that much. 10180 */ 10181 data_len = offsetof(struct scsi_inquiry_data, vendor_specific1); 10182 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 10183 inq_ptr = (struct scsi_inquiry_data *)ctsio->kern_data_ptr; 10184 ctsio->kern_sg_entries = 0; 10185 ctsio->kern_data_resid = 0; 10186 ctsio->kern_rel_offset = 0; 10187 10188 if (data_len < alloc_len) { 10189 ctsio->residual = alloc_len - data_len; 10190 ctsio->kern_data_len = data_len; 10191 ctsio->kern_total_len = data_len; 10192 } else { 10193 ctsio->residual = 0; 10194 ctsio->kern_data_len = alloc_len; 10195 ctsio->kern_total_len = alloc_len; 10196 } 10197 10198 if (lun != NULL) { 10199 if ((lun->flags & CTL_LUN_PRIMARY_SC) || 10200 softc->ha_link >= CTL_HA_LINK_UNKNOWN) { 10201 inq_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10202 lun->be_lun->lun_type; 10203 } else { 10204 inq_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | 10205 lun->be_lun->lun_type; 10206 } 10207 if (lun->flags & CTL_LUN_REMOVABLE) 10208 inq_ptr->dev_qual2 |= SID_RMB; 10209 } else 10210 inq_ptr->device = (SID_QUAL_BAD_LU << 5) | T_NODEVICE; 10211 10212 /* RMB in byte 2 is 0 */ 10213 inq_ptr->version = SCSI_REV_SPC4; 10214 10215 /* 10216 * According to SAM-3, even if a device only supports a single 10217 * level of LUN addressing, it should still set the HISUP bit: 10218 * 10219 * 4.9.1 Logical unit numbers overview 10220 * 10221 * All logical unit number formats described in this standard are 10222 * hierarchical in structure even when only a single level in that 10223 * hierarchy is used. The HISUP bit shall be set to one in the 10224 * standard INQUIRY data (see SPC-2) when any logical unit number 10225 * format described in this standard is used. Non-hierarchical 10226 * formats are outside the scope of this standard. 10227 * 10228 * Therefore we set the HiSup bit here. 10229 * 10230 * The reponse format is 2, per SPC-3. 10231 */ 10232 inq_ptr->response_format = SID_HiSup | 2; 10233 10234 inq_ptr->additional_length = data_len - 10235 (offsetof(struct scsi_inquiry_data, additional_length) + 1); 10236 CTL_DEBUG_PRINT(("additional_length = %d\n", 10237 inq_ptr->additional_length)); 10238 10239 inq_ptr->spc3_flags = SPC3_SID_3PC | SPC3_SID_TPGS_IMPLICIT; 10240 if (port_type == CTL_PORT_SCSI) 10241 inq_ptr->spc2_flags = SPC2_SID_ADDR16; 10242 inq_ptr->spc2_flags |= SPC2_SID_MultiP; 10243 inq_ptr->flags = SID_CmdQue; 10244 if (port_type == CTL_PORT_SCSI) 10245 inq_ptr->flags |= SID_WBus16 | SID_Sync; 10246 10247 /* 10248 * Per SPC-3, unused bytes in ASCII strings are filled with spaces. 10249 * We have 8 bytes for the vendor name, and 16 bytes for the device 10250 * name and 4 bytes for the revision. 10251 */ 10252 if (lun == NULL || (val = ctl_get_opt(&lun->be_lun->options, 10253 "vendor")) == NULL) { 10254 strncpy(inq_ptr->vendor, CTL_VENDOR, sizeof(inq_ptr->vendor)); 10255 } else { 10256 memset(inq_ptr->vendor, ' ', sizeof(inq_ptr->vendor)); 10257 strncpy(inq_ptr->vendor, val, 10258 min(sizeof(inq_ptr->vendor), strlen(val))); 10259 } 10260 if (lun == NULL) { 10261 strncpy(inq_ptr->product, CTL_DIRECT_PRODUCT, 10262 sizeof(inq_ptr->product)); 10263 } else if ((val = ctl_get_opt(&lun->be_lun->options, "product")) == NULL) { 10264 switch (lun->be_lun->lun_type) { 10265 case T_DIRECT: 10266 strncpy(inq_ptr->product, CTL_DIRECT_PRODUCT, 10267 sizeof(inq_ptr->product)); 10268 break; 10269 case T_PROCESSOR: 10270 strncpy(inq_ptr->product, CTL_PROCESSOR_PRODUCT, 10271 sizeof(inq_ptr->product)); 10272 break; 10273 case T_CDROM: 10274 strncpy(inq_ptr->product, CTL_CDROM_PRODUCT, 10275 sizeof(inq_ptr->product)); 10276 break; 10277 default: 10278 strncpy(inq_ptr->product, CTL_UNKNOWN_PRODUCT, 10279 sizeof(inq_ptr->product)); 10280 break; 10281 } 10282 } else { 10283 memset(inq_ptr->product, ' ', sizeof(inq_ptr->product)); 10284 strncpy(inq_ptr->product, val, 10285 min(sizeof(inq_ptr->product), strlen(val))); 10286 } 10287 10288 /* 10289 * XXX make this a macro somewhere so it automatically gets 10290 * incremented when we make changes. 10291 */ 10292 if (lun == NULL || (val = ctl_get_opt(&lun->be_lun->options, 10293 "revision")) == NULL) { 10294 strncpy(inq_ptr->revision, "0001", sizeof(inq_ptr->revision)); 10295 } else { 10296 memset(inq_ptr->revision, ' ', sizeof(inq_ptr->revision)); 10297 strncpy(inq_ptr->revision, val, 10298 min(sizeof(inq_ptr->revision), strlen(val))); 10299 } 10300 10301 /* 10302 * For parallel SCSI, we support double transition and single 10303 * transition clocking. We also support QAS (Quick Arbitration 10304 * and Selection) and Information Unit transfers on both the 10305 * control and array devices. 10306 */ 10307 if (port_type == CTL_PORT_SCSI) 10308 inq_ptr->spi3data = SID_SPI_CLOCK_DT_ST | SID_SPI_QAS | 10309 SID_SPI_IUS; 10310 10311 /* SAM-5 (no version claimed) */ 10312 scsi_ulto2b(0x00A0, inq_ptr->version1); 10313 /* SPC-4 (no version claimed) */ 10314 scsi_ulto2b(0x0460, inq_ptr->version2); 10315 if (port_type == CTL_PORT_FC) { 10316 /* FCP-2 ANSI INCITS.350:2003 */ 10317 scsi_ulto2b(0x0917, inq_ptr->version3); 10318 } else if (port_type == CTL_PORT_SCSI) { 10319 /* SPI-4 ANSI INCITS.362:200x */ 10320 scsi_ulto2b(0x0B56, inq_ptr->version3); 10321 } else if (port_type == CTL_PORT_ISCSI) { 10322 /* iSCSI (no version claimed) */ 10323 scsi_ulto2b(0x0960, inq_ptr->version3); 10324 } else if (port_type == CTL_PORT_SAS) { 10325 /* SAS (no version claimed) */ 10326 scsi_ulto2b(0x0BE0, inq_ptr->version3); 10327 } 10328 10329 if (lun == NULL) { 10330 /* SBC-4 (no version claimed) */ 10331 scsi_ulto2b(0x0600, inq_ptr->version4); 10332 } else { 10333 switch (lun->be_lun->lun_type) { 10334 case T_DIRECT: 10335 /* SBC-4 (no version claimed) */ 10336 scsi_ulto2b(0x0600, inq_ptr->version4); 10337 break; 10338 case T_PROCESSOR: 10339 break; 10340 case T_CDROM: 10341 /* MMC-6 (no version claimed) */ 10342 scsi_ulto2b(0x04E0, inq_ptr->version4); 10343 break; 10344 default: 10345 break; 10346 } 10347 } 10348 10349 ctl_set_success(ctsio); 10350 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10351 ctsio->be_move_done = ctl_config_move_done; 10352 ctl_datamove((union ctl_io *)ctsio); 10353 return (CTL_RETVAL_COMPLETE); 10354} 10355 10356int 10357ctl_inquiry(struct ctl_scsiio *ctsio) 10358{ 10359 struct scsi_inquiry *cdb; 10360 int retval; 10361 10362 CTL_DEBUG_PRINT(("ctl_inquiry\n")); 10363 10364 cdb = (struct scsi_inquiry *)ctsio->cdb; 10365 if (cdb->byte2 & SI_EVPD) 10366 retval = ctl_inquiry_evpd(ctsio); 10367 else if (cdb->page_code == 0) 10368 retval = ctl_inquiry_std(ctsio); 10369 else { 10370 ctl_set_invalid_field(ctsio, 10371 /*sks_valid*/ 1, 10372 /*command*/ 1, 10373 /*field*/ 2, 10374 /*bit_valid*/ 0, 10375 /*bit*/ 0); 10376 ctl_done((union ctl_io *)ctsio); 10377 return (CTL_RETVAL_COMPLETE); 10378 } 10379 10380 return (retval); 10381} 10382 10383int 10384ctl_get_config(struct ctl_scsiio *ctsio) 10385{ 10386 struct scsi_get_config_header *hdr; 10387 struct scsi_get_config_feature *feature; 10388 struct scsi_get_config *cdb; 10389 struct ctl_lun *lun; 10390 uint32_t alloc_len, data_len; 10391 int rt, starting; 10392 10393 lun = ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10394 cdb = (struct scsi_get_config *)ctsio->cdb; 10395 rt = (cdb->rt & SGC_RT_MASK); 10396 starting = scsi_2btoul(cdb->starting_feature); 10397 alloc_len = scsi_2btoul(cdb->length); 10398 10399 data_len = sizeof(struct scsi_get_config_header) + 10400 sizeof(struct scsi_get_config_feature) + 8 + 10401 sizeof(struct scsi_get_config_feature) + 8 + 10402 sizeof(struct scsi_get_config_feature) + 4 + 10403 sizeof(struct scsi_get_config_feature) + 4 + 10404 sizeof(struct scsi_get_config_feature) + 8 + 10405 sizeof(struct scsi_get_config_feature) + 10406 sizeof(struct scsi_get_config_feature) + 4 + 10407 sizeof(struct scsi_get_config_feature) + 4 + 10408 sizeof(struct scsi_get_config_feature) + 4 + 10409 sizeof(struct scsi_get_config_feature) + 4 + 10410 sizeof(struct scsi_get_config_feature) + 4 + 10411 sizeof(struct scsi_get_config_feature) + 4; 10412 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 10413 ctsio->kern_sg_entries = 0; 10414 ctsio->kern_data_resid = 0; 10415 ctsio->kern_rel_offset = 0; 10416 10417 hdr = (struct scsi_get_config_header *)ctsio->kern_data_ptr; 10418 if (lun->flags & CTL_LUN_NO_MEDIA) 10419 scsi_ulto2b(0x0000, hdr->current_profile); 10420 else 10421 scsi_ulto2b(0x0010, hdr->current_profile); 10422 feature = (struct scsi_get_config_feature *)(hdr + 1); 10423 10424 if (starting > 0x003b) 10425 goto done; 10426 if (starting > 0x003a) 10427 goto f3b; 10428 if (starting > 0x002b) 10429 goto f3a; 10430 if (starting > 0x002a) 10431 goto f2b; 10432 if (starting > 0x001f) 10433 goto f2a; 10434 if (starting > 0x001e) 10435 goto f1f; 10436 if (starting > 0x001d) 10437 goto f1e; 10438 if (starting > 0x0010) 10439 goto f1d; 10440 if (starting > 0x0003) 10441 goto f10; 10442 if (starting > 0x0002) 10443 goto f3; 10444 if (starting > 0x0001) 10445 goto f2; 10446 if (starting > 0x0000) 10447 goto f1; 10448 10449 /* Profile List */ 10450 scsi_ulto2b(0x0000, feature->feature_code); 10451 feature->flags = SGC_F_PERSISTENT | SGC_F_CURRENT; 10452 feature->add_length = 8; 10453 scsi_ulto2b(0x0008, &feature->feature_data[0]); /* CD-ROM */ 10454 feature->feature_data[2] = 0x00; 10455 scsi_ulto2b(0x0010, &feature->feature_data[4]); /* DVD-ROM */ 10456 feature->feature_data[6] = 0x01; 10457 feature = (struct scsi_get_config_feature *) 10458 &feature->feature_data[feature->add_length]; 10459 10460f1: /* Core */ 10461 scsi_ulto2b(0x0001, feature->feature_code); 10462 feature->flags = 0x08 | SGC_F_PERSISTENT | SGC_F_CURRENT; 10463 feature->add_length = 8; 10464 scsi_ulto4b(0x00000000, &feature->feature_data[0]); 10465 feature->feature_data[4] = 0x03; 10466 feature = (struct scsi_get_config_feature *) 10467 &feature->feature_data[feature->add_length]; 10468 10469f2: /* Morphing */ 10470 scsi_ulto2b(0x0002, feature->feature_code); 10471 feature->flags = 0x04 | SGC_F_PERSISTENT | SGC_F_CURRENT; 10472 feature->add_length = 4; 10473 feature->feature_data[0] = 0x02; 10474 feature = (struct scsi_get_config_feature *) 10475 &feature->feature_data[feature->add_length]; 10476 10477f3: /* Removable Medium */ 10478 scsi_ulto2b(0x0003, feature->feature_code); 10479 feature->flags = 0x04 | SGC_F_PERSISTENT | SGC_F_CURRENT; 10480 feature->add_length = 4; 10481 feature->feature_data[0] = 0x39; 10482 feature = (struct scsi_get_config_feature *) 10483 &feature->feature_data[feature->add_length]; 10484 10485 if (rt == SGC_RT_CURRENT && (lun->flags & CTL_LUN_NO_MEDIA)) 10486 goto done; 10487 10488f10: /* Random Read */ 10489 scsi_ulto2b(0x0010, feature->feature_code); 10490 feature->flags = 0x00; 10491 if ((lun->flags & CTL_LUN_NO_MEDIA) == 0) 10492 feature->flags |= SGC_F_CURRENT; 10493 feature->add_length = 8; 10494 scsi_ulto4b(lun->be_lun->blocksize, &feature->feature_data[0]); 10495 scsi_ulto2b(1, &feature->feature_data[4]); 10496 feature->feature_data[6] = 0x00; 10497 feature = (struct scsi_get_config_feature *) 10498 &feature->feature_data[feature->add_length]; 10499 10500f1d: /* Multi-Read */ 10501 scsi_ulto2b(0x001D, 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 = 0; 10506 feature = (struct scsi_get_config_feature *) 10507 &feature->feature_data[feature->add_length]; 10508 10509f1e: /* CD Read */ 10510 scsi_ulto2b(0x001E, feature->feature_code); 10511 feature->flags = 0x00; 10512 if ((lun->flags & CTL_LUN_NO_MEDIA) == 0) 10513 feature->flags |= SGC_F_CURRENT; 10514 feature->add_length = 4; 10515 feature->feature_data[0] = 0x00; 10516 feature = (struct scsi_get_config_feature *) 10517 &feature->feature_data[feature->add_length]; 10518 10519f1f: /* DVD Read */ 10520 scsi_ulto2b(0x001F, feature->feature_code); 10521 feature->flags = 0x08; 10522 if ((lun->flags & CTL_LUN_NO_MEDIA) == 0) 10523 feature->flags |= SGC_F_CURRENT; 10524 feature->add_length = 4; 10525 feature->feature_data[0] = 0x01; 10526 feature->feature_data[2] = 0x03; 10527 feature = (struct scsi_get_config_feature *) 10528 &feature->feature_data[feature->add_length]; 10529 10530f2a: /* DVD+RW */ 10531 scsi_ulto2b(0x002A, feature->feature_code); 10532 feature->flags = 0x04; 10533 if ((lun->flags & CTL_LUN_NO_MEDIA) == 0) 10534 feature->flags |= SGC_F_CURRENT; 10535 feature->add_length = 4; 10536 feature->feature_data[0] = 0x00; 10537 feature->feature_data[1] = 0x00; 10538 feature = (struct scsi_get_config_feature *) 10539 &feature->feature_data[feature->add_length]; 10540 10541f2b: /* DVD+R */ 10542 scsi_ulto2b(0x002B, feature->feature_code); 10543 feature->flags = 0x00; 10544 if ((lun->flags & CTL_LUN_NO_MEDIA) == 0) 10545 feature->flags |= SGC_F_CURRENT; 10546 feature->add_length = 4; 10547 feature->feature_data[0] = 0x00; 10548 feature = (struct scsi_get_config_feature *) 10549 &feature->feature_data[feature->add_length]; 10550 10551f3a: /* DVD+RW Dual Layer */ 10552 scsi_ulto2b(0x003A, feature->feature_code); 10553 feature->flags = 0x00; 10554 if ((lun->flags & CTL_LUN_NO_MEDIA) == 0) 10555 feature->flags |= SGC_F_CURRENT; 10556 feature->add_length = 4; 10557 feature->feature_data[0] = 0x00; 10558 feature->feature_data[1] = 0x00; 10559 feature = (struct scsi_get_config_feature *) 10560 &feature->feature_data[feature->add_length]; 10561 10562f3b: /* DVD+R Dual Layer */ 10563 scsi_ulto2b(0x003B, feature->feature_code); 10564 feature->flags = 0x00; 10565 if ((lun->flags & CTL_LUN_NO_MEDIA) == 0) 10566 feature->flags |= SGC_F_CURRENT; 10567 feature->add_length = 4; 10568 feature->feature_data[0] = 0x00; 10569 feature = (struct scsi_get_config_feature *) 10570 &feature->feature_data[feature->add_length]; 10571 10572done: 10573 data_len = (uint8_t *)feature - (uint8_t *)hdr; 10574 if (rt == SGC_RT_SPECIFIC && data_len > 4) { 10575 feature = (struct scsi_get_config_feature *)(hdr + 1); 10576 if (scsi_2btoul(feature->feature_code) == starting) 10577 feature = (struct scsi_get_config_feature *) 10578 &feature->feature_data[feature->add_length]; 10579 data_len = (uint8_t *)feature - (uint8_t *)hdr; 10580 } 10581 scsi_ulto4b(data_len - 4, hdr->data_length); 10582 if (data_len < alloc_len) { 10583 ctsio->residual = alloc_len - data_len; 10584 ctsio->kern_data_len = data_len; 10585 ctsio->kern_total_len = data_len; 10586 } else { 10587 ctsio->residual = 0; 10588 ctsio->kern_data_len = alloc_len; 10589 ctsio->kern_total_len = alloc_len; 10590 } 10591 10592 ctl_set_success(ctsio); 10593 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10594 ctsio->be_move_done = ctl_config_move_done; 10595 ctl_datamove((union ctl_io *)ctsio); 10596 return (CTL_RETVAL_COMPLETE); 10597} 10598 10599int 10600ctl_get_event_status(struct ctl_scsiio *ctsio) 10601{ 10602 struct scsi_get_event_status_header *hdr; 10603 struct scsi_get_event_status *cdb; 10604 struct ctl_lun *lun; 10605 uint32_t alloc_len, data_len; 10606 int notif_class; 10607 10608 lun = ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10609 cdb = (struct scsi_get_event_status *)ctsio->cdb; 10610 if ((cdb->byte2 & SGESN_POLLED) == 0) { 10611 ctl_set_invalid_field(ctsio, /*sks_valid*/ 1, /*command*/ 1, 10612 /*field*/ 1, /*bit_valid*/ 1, /*bit*/ 0); 10613 ctl_done((union ctl_io *)ctsio); 10614 return (CTL_RETVAL_COMPLETE); 10615 } 10616 notif_class = cdb->notif_class; 10617 alloc_len = scsi_2btoul(cdb->length); 10618 10619 data_len = sizeof(struct scsi_get_event_status_header); 10620 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 10621 ctsio->kern_sg_entries = 0; 10622 ctsio->kern_data_resid = 0; 10623 ctsio->kern_rel_offset = 0; 10624 10625 if (data_len < alloc_len) { 10626 ctsio->residual = alloc_len - data_len; 10627 ctsio->kern_data_len = data_len; 10628 ctsio->kern_total_len = data_len; 10629 } else { 10630 ctsio->residual = 0; 10631 ctsio->kern_data_len = alloc_len; 10632 ctsio->kern_total_len = alloc_len; 10633 } 10634 10635 hdr = (struct scsi_get_event_status_header *)ctsio->kern_data_ptr; 10636 scsi_ulto2b(0, hdr->descr_length); 10637 hdr->nea_class = SGESN_NEA; 10638 hdr->supported_class = 0; 10639 10640 ctl_set_success(ctsio); 10641 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10642 ctsio->be_move_done = ctl_config_move_done; 10643 ctl_datamove((union ctl_io *)ctsio); 10644 return (CTL_RETVAL_COMPLETE); 10645} 10646 10647int 10648ctl_mechanism_status(struct ctl_scsiio *ctsio) 10649{ 10650 struct scsi_mechanism_status_header *hdr; 10651 struct scsi_mechanism_status *cdb; 10652 struct ctl_lun *lun; 10653 uint32_t alloc_len, data_len; 10654 10655 lun = ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10656 cdb = (struct scsi_mechanism_status *)ctsio->cdb; 10657 alloc_len = scsi_2btoul(cdb->length); 10658 10659 data_len = sizeof(struct scsi_mechanism_status_header); 10660 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 10661 ctsio->kern_sg_entries = 0; 10662 ctsio->kern_data_resid = 0; 10663 ctsio->kern_rel_offset = 0; 10664 10665 if (data_len < alloc_len) { 10666 ctsio->residual = alloc_len - data_len; 10667 ctsio->kern_data_len = data_len; 10668 ctsio->kern_total_len = data_len; 10669 } else { 10670 ctsio->residual = 0; 10671 ctsio->kern_data_len = alloc_len; 10672 ctsio->kern_total_len = alloc_len; 10673 } 10674 10675 hdr = (struct scsi_mechanism_status_header *)ctsio->kern_data_ptr; 10676 hdr->state1 = 0x00; 10677 hdr->state2 = 0xe0; 10678 scsi_ulto3b(0, hdr->lba); 10679 hdr->slots_num = 0; 10680 scsi_ulto2b(0, hdr->slots_length); 10681 10682 ctl_set_success(ctsio); 10683 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10684 ctsio->be_move_done = ctl_config_move_done; 10685 ctl_datamove((union ctl_io *)ctsio); 10686 return (CTL_RETVAL_COMPLETE); 10687} 10688 10689static void 10690ctl_ultomsf(uint32_t lba, uint8_t *buf) 10691{ 10692 10693 lba += 150; 10694 buf[0] = 0; 10695 buf[1] = bin2bcd((lba / 75) / 60); 10696 buf[2] = bin2bcd((lba / 75) % 60); 10697 buf[3] = bin2bcd(lba % 75); 10698} 10699 10700int 10701ctl_read_toc(struct ctl_scsiio *ctsio) 10702{ 10703 struct scsi_read_toc_hdr *hdr; 10704 struct scsi_read_toc_type01_descr *descr; 10705 struct scsi_read_toc *cdb; 10706 struct ctl_lun *lun; 10707 uint32_t alloc_len, data_len; 10708 int format, msf; 10709 10710 lun = ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10711 cdb = (struct scsi_read_toc *)ctsio->cdb; 10712 msf = (cdb->byte2 & CD_MSF) != 0; 10713 format = cdb->format; 10714 alloc_len = scsi_2btoul(cdb->data_len); 10715 10716 data_len = sizeof(struct scsi_read_toc_hdr); 10717 if (format == 0) 10718 data_len += 2 * sizeof(struct scsi_read_toc_type01_descr); 10719 else 10720 data_len += sizeof(struct scsi_read_toc_type01_descr); 10721 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 10722 ctsio->kern_sg_entries = 0; 10723 ctsio->kern_data_resid = 0; 10724 ctsio->kern_rel_offset = 0; 10725 10726 if (data_len < alloc_len) { 10727 ctsio->residual = alloc_len - data_len; 10728 ctsio->kern_data_len = data_len; 10729 ctsio->kern_total_len = data_len; 10730 } else { 10731 ctsio->residual = 0; 10732 ctsio->kern_data_len = alloc_len; 10733 ctsio->kern_total_len = alloc_len; 10734 } 10735 10736 hdr = (struct scsi_read_toc_hdr *)ctsio->kern_data_ptr; 10737 if (format == 0) { 10738 scsi_ulto2b(0x12, hdr->data_length); 10739 hdr->first = 1; 10740 hdr->last = 1; 10741 descr = (struct scsi_read_toc_type01_descr *)(hdr + 1); 10742 descr->addr_ctl = 0x14; 10743 descr->track_number = 1; 10744 if (msf) 10745 ctl_ultomsf(0, descr->track_start); 10746 else 10747 scsi_ulto4b(0, descr->track_start); 10748 descr++; 10749 descr->addr_ctl = 0x14; 10750 descr->track_number = 0xaa; 10751 if (msf) 10752 ctl_ultomsf(lun->be_lun->maxlba+1, descr->track_start); 10753 else 10754 scsi_ulto4b(lun->be_lun->maxlba+1, descr->track_start); 10755 } else { 10756 scsi_ulto2b(0x0a, hdr->data_length); 10757 hdr->first = 1; 10758 hdr->last = 1; 10759 descr = (struct scsi_read_toc_type01_descr *)(hdr + 1); 10760 descr->addr_ctl = 0x14; 10761 descr->track_number = 1; 10762 if (msf) 10763 ctl_ultomsf(0, descr->track_start); 10764 else 10765 scsi_ulto4b(0, descr->track_start); 10766 } 10767 10768 ctl_set_success(ctsio); 10769 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10770 ctsio->be_move_done = ctl_config_move_done; 10771 ctl_datamove((union ctl_io *)ctsio); 10772 return (CTL_RETVAL_COMPLETE); 10773} 10774 10775/* 10776 * For known CDB types, parse the LBA and length. 10777 */ 10778static int 10779ctl_get_lba_len(union ctl_io *io, uint64_t *lba, uint64_t *len) 10780{ 10781 if (io->io_hdr.io_type != CTL_IO_SCSI) 10782 return (1); 10783 10784 switch (io->scsiio.cdb[0]) { 10785 case COMPARE_AND_WRITE: { 10786 struct scsi_compare_and_write *cdb; 10787 10788 cdb = (struct scsi_compare_and_write *)io->scsiio.cdb; 10789 10790 *lba = scsi_8btou64(cdb->addr); 10791 *len = cdb->length; 10792 break; 10793 } 10794 case READ_6: 10795 case WRITE_6: { 10796 struct scsi_rw_6 *cdb; 10797 10798 cdb = (struct scsi_rw_6 *)io->scsiio.cdb; 10799 10800 *lba = scsi_3btoul(cdb->addr); 10801 /* only 5 bits are valid in the most significant address byte */ 10802 *lba &= 0x1fffff; 10803 *len = cdb->length; 10804 break; 10805 } 10806 case READ_10: 10807 case WRITE_10: { 10808 struct scsi_rw_10 *cdb; 10809 10810 cdb = (struct scsi_rw_10 *)io->scsiio.cdb; 10811 10812 *lba = scsi_4btoul(cdb->addr); 10813 *len = scsi_2btoul(cdb->length); 10814 break; 10815 } 10816 case WRITE_VERIFY_10: { 10817 struct scsi_write_verify_10 *cdb; 10818 10819 cdb = (struct scsi_write_verify_10 *)io->scsiio.cdb; 10820 10821 *lba = scsi_4btoul(cdb->addr); 10822 *len = scsi_2btoul(cdb->length); 10823 break; 10824 } 10825 case READ_12: 10826 case WRITE_12: { 10827 struct scsi_rw_12 *cdb; 10828 10829 cdb = (struct scsi_rw_12 *)io->scsiio.cdb; 10830 10831 *lba = scsi_4btoul(cdb->addr); 10832 *len = scsi_4btoul(cdb->length); 10833 break; 10834 } 10835 case WRITE_VERIFY_12: { 10836 struct scsi_write_verify_12 *cdb; 10837 10838 cdb = (struct scsi_write_verify_12 *)io->scsiio.cdb; 10839 10840 *lba = scsi_4btoul(cdb->addr); 10841 *len = scsi_4btoul(cdb->length); 10842 break; 10843 } 10844 case READ_16: 10845 case WRITE_16: { 10846 struct scsi_rw_16 *cdb; 10847 10848 cdb = (struct scsi_rw_16 *)io->scsiio.cdb; 10849 10850 *lba = scsi_8btou64(cdb->addr); 10851 *len = scsi_4btoul(cdb->length); 10852 break; 10853 } 10854 case WRITE_ATOMIC_16: { 10855 struct scsi_write_atomic_16 *cdb; 10856 10857 cdb = (struct scsi_write_atomic_16 *)io->scsiio.cdb; 10858 10859 *lba = scsi_8btou64(cdb->addr); 10860 *len = scsi_2btoul(cdb->length); 10861 break; 10862 } 10863 case WRITE_VERIFY_16: { 10864 struct scsi_write_verify_16 *cdb; 10865 10866 cdb = (struct scsi_write_verify_16 *)io->scsiio.cdb; 10867 10868 *lba = scsi_8btou64(cdb->addr); 10869 *len = scsi_4btoul(cdb->length); 10870 break; 10871 } 10872 case WRITE_SAME_10: { 10873 struct scsi_write_same_10 *cdb; 10874 10875 cdb = (struct scsi_write_same_10 *)io->scsiio.cdb; 10876 10877 *lba = scsi_4btoul(cdb->addr); 10878 *len = scsi_2btoul(cdb->length); 10879 break; 10880 } 10881 case WRITE_SAME_16: { 10882 struct scsi_write_same_16 *cdb; 10883 10884 cdb = (struct scsi_write_same_16 *)io->scsiio.cdb; 10885 10886 *lba = scsi_8btou64(cdb->addr); 10887 *len = scsi_4btoul(cdb->length); 10888 break; 10889 } 10890 case VERIFY_10: { 10891 struct scsi_verify_10 *cdb; 10892 10893 cdb = (struct scsi_verify_10 *)io->scsiio.cdb; 10894 10895 *lba = scsi_4btoul(cdb->addr); 10896 *len = scsi_2btoul(cdb->length); 10897 break; 10898 } 10899 case VERIFY_12: { 10900 struct scsi_verify_12 *cdb; 10901 10902 cdb = (struct scsi_verify_12 *)io->scsiio.cdb; 10903 10904 *lba = scsi_4btoul(cdb->addr); 10905 *len = scsi_4btoul(cdb->length); 10906 break; 10907 } 10908 case VERIFY_16: { 10909 struct scsi_verify_16 *cdb; 10910 10911 cdb = (struct scsi_verify_16 *)io->scsiio.cdb; 10912 10913 *lba = scsi_8btou64(cdb->addr); 10914 *len = scsi_4btoul(cdb->length); 10915 break; 10916 } 10917 case UNMAP: { 10918 *lba = 0; 10919 *len = UINT64_MAX; 10920 break; 10921 } 10922 case SERVICE_ACTION_IN: { /* GET LBA STATUS */ 10923 struct scsi_get_lba_status *cdb; 10924 10925 cdb = (struct scsi_get_lba_status *)io->scsiio.cdb; 10926 *lba = scsi_8btou64(cdb->addr); 10927 *len = UINT32_MAX; 10928 break; 10929 } 10930 default: 10931 return (1); 10932 break; /* NOTREACHED */ 10933 } 10934 10935 return (0); 10936} 10937 10938static ctl_action 10939ctl_extent_check_lba(uint64_t lba1, uint64_t len1, uint64_t lba2, uint64_t len2, 10940 bool seq) 10941{ 10942 uint64_t endlba1, endlba2; 10943 10944 endlba1 = lba1 + len1 - (seq ? 0 : 1); 10945 endlba2 = lba2 + len2 - 1; 10946 10947 if ((endlba1 < lba2) || (endlba2 < lba1)) 10948 return (CTL_ACTION_PASS); 10949 else 10950 return (CTL_ACTION_BLOCK); 10951} 10952 10953static int 10954ctl_extent_check_unmap(union ctl_io *io, uint64_t lba2, uint64_t len2) 10955{ 10956 struct ctl_ptr_len_flags *ptrlen; 10957 struct scsi_unmap_desc *buf, *end, *range; 10958 uint64_t lba; 10959 uint32_t len; 10960 10961 /* If not UNMAP -- go other way. */ 10962 if (io->io_hdr.io_type != CTL_IO_SCSI || 10963 io->scsiio.cdb[0] != UNMAP) 10964 return (CTL_ACTION_ERROR); 10965 10966 /* If UNMAP without data -- block and wait for data. */ 10967 ptrlen = (struct ctl_ptr_len_flags *) 10968 &io->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 10969 if ((io->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0 || 10970 ptrlen->ptr == NULL) 10971 return (CTL_ACTION_BLOCK); 10972 10973 /* UNMAP with data -- check for collision. */ 10974 buf = (struct scsi_unmap_desc *)ptrlen->ptr; 10975 end = buf + ptrlen->len / sizeof(*buf); 10976 for (range = buf; range < end; range++) { 10977 lba = scsi_8btou64(range->lba); 10978 len = scsi_4btoul(range->length); 10979 if ((lba < lba2 + len2) && (lba + len > lba2)) 10980 return (CTL_ACTION_BLOCK); 10981 } 10982 return (CTL_ACTION_PASS); 10983} 10984 10985static ctl_action 10986ctl_extent_check(union ctl_io *io1, union ctl_io *io2, bool seq) 10987{ 10988 uint64_t lba1, lba2; 10989 uint64_t len1, len2; 10990 int retval; 10991 10992 if (ctl_get_lba_len(io2, &lba2, &len2) != 0) 10993 return (CTL_ACTION_ERROR); 10994 10995 retval = ctl_extent_check_unmap(io1, lba2, len2); 10996 if (retval != CTL_ACTION_ERROR) 10997 return (retval); 10998 10999 if (ctl_get_lba_len(io1, &lba1, &len1) != 0) 11000 return (CTL_ACTION_ERROR); 11001 11002 if (io1->io_hdr.flags & CTL_FLAG_SERSEQ_DONE) 11003 seq = FALSE; 11004 return (ctl_extent_check_lba(lba1, len1, lba2, len2, seq)); 11005} 11006 11007static ctl_action 11008ctl_extent_check_seq(union ctl_io *io1, union ctl_io *io2) 11009{ 11010 uint64_t lba1, lba2; 11011 uint64_t len1, len2; 11012 11013 if (io1->io_hdr.flags & CTL_FLAG_SERSEQ_DONE) 11014 return (CTL_ACTION_PASS); 11015 if (ctl_get_lba_len(io1, &lba1, &len1) != 0) 11016 return (CTL_ACTION_ERROR); 11017 if (ctl_get_lba_len(io2, &lba2, &len2) != 0) 11018 return (CTL_ACTION_ERROR); 11019 11020 if (lba1 + len1 == lba2) 11021 return (CTL_ACTION_BLOCK); 11022 return (CTL_ACTION_PASS); 11023} 11024 11025static ctl_action 11026ctl_check_for_blockage(struct ctl_lun *lun, union ctl_io *pending_io, 11027 union ctl_io *ooa_io) 11028{ 11029 const struct ctl_cmd_entry *pending_entry, *ooa_entry; 11030 const ctl_serialize_action *serialize_row; 11031 11032 /* 11033 * The initiator attempted multiple untagged commands at the same 11034 * time. Can't do that. 11035 */ 11036 if ((pending_io->scsiio.tag_type == CTL_TAG_UNTAGGED) 11037 && (ooa_io->scsiio.tag_type == CTL_TAG_UNTAGGED) 11038 && ((pending_io->io_hdr.nexus.targ_port == 11039 ooa_io->io_hdr.nexus.targ_port) 11040 && (pending_io->io_hdr.nexus.initid == 11041 ooa_io->io_hdr.nexus.initid)) 11042 && ((ooa_io->io_hdr.flags & (CTL_FLAG_ABORT | 11043 CTL_FLAG_STATUS_SENT)) == 0)) 11044 return (CTL_ACTION_OVERLAP); 11045 11046 /* 11047 * The initiator attempted to send multiple tagged commands with 11048 * the same ID. (It's fine if different initiators have the same 11049 * tag ID.) 11050 * 11051 * Even if all of those conditions are true, we don't kill the I/O 11052 * if the command ahead of us has been aborted. We won't end up 11053 * sending it to the FETD, and it's perfectly legal to resend a 11054 * command with the same tag number as long as the previous 11055 * instance of this tag number has been aborted somehow. 11056 */ 11057 if ((pending_io->scsiio.tag_type != CTL_TAG_UNTAGGED) 11058 && (ooa_io->scsiio.tag_type != CTL_TAG_UNTAGGED) 11059 && (pending_io->scsiio.tag_num == ooa_io->scsiio.tag_num) 11060 && ((pending_io->io_hdr.nexus.targ_port == 11061 ooa_io->io_hdr.nexus.targ_port) 11062 && (pending_io->io_hdr.nexus.initid == 11063 ooa_io->io_hdr.nexus.initid)) 11064 && ((ooa_io->io_hdr.flags & (CTL_FLAG_ABORT | 11065 CTL_FLAG_STATUS_SENT)) == 0)) 11066 return (CTL_ACTION_OVERLAP_TAG); 11067 11068 /* 11069 * If we get a head of queue tag, SAM-3 says that we should 11070 * immediately execute it. 11071 * 11072 * What happens if this command would normally block for some other 11073 * reason? e.g. a request sense with a head of queue tag 11074 * immediately after a write. Normally that would block, but this 11075 * will result in its getting executed immediately... 11076 * 11077 * We currently return "pass" instead of "skip", so we'll end up 11078 * going through the rest of the queue to check for overlapped tags. 11079 * 11080 * XXX KDM check for other types of blockage first?? 11081 */ 11082 if (pending_io->scsiio.tag_type == CTL_TAG_HEAD_OF_QUEUE) 11083 return (CTL_ACTION_PASS); 11084 11085 /* 11086 * Ordered tags have to block until all items ahead of them 11087 * have completed. If we get called with an ordered tag, we always 11088 * block, if something else is ahead of us in the queue. 11089 */ 11090 if (pending_io->scsiio.tag_type == CTL_TAG_ORDERED) 11091 return (CTL_ACTION_BLOCK); 11092 11093 /* 11094 * Simple tags get blocked until all head of queue and ordered tags 11095 * ahead of them have completed. I'm lumping untagged commands in 11096 * with simple tags here. XXX KDM is that the right thing to do? 11097 */ 11098 if (((pending_io->scsiio.tag_type == CTL_TAG_UNTAGGED) 11099 || (pending_io->scsiio.tag_type == CTL_TAG_SIMPLE)) 11100 && ((ooa_io->scsiio.tag_type == CTL_TAG_HEAD_OF_QUEUE) 11101 || (ooa_io->scsiio.tag_type == CTL_TAG_ORDERED))) 11102 return (CTL_ACTION_BLOCK); 11103 11104 pending_entry = ctl_get_cmd_entry(&pending_io->scsiio, NULL); 11105 KASSERT(pending_entry->seridx < CTL_SERIDX_COUNT, 11106 ("%s: Invalid seridx %d for pending CDB %02x %02x @ %p", 11107 __func__, pending_entry->seridx, pending_io->scsiio.cdb[0], 11108 pending_io->scsiio.cdb[1], pending_io)); 11109 ooa_entry = ctl_get_cmd_entry(&ooa_io->scsiio, NULL); 11110 if (ooa_entry->seridx == CTL_SERIDX_INVLD) 11111 return (CTL_ACTION_PASS); /* Unsupported command in OOA queue */ 11112 KASSERT(ooa_entry->seridx < CTL_SERIDX_COUNT, 11113 ("%s: Invalid seridx %d for ooa CDB %02x %02x @ %p", 11114 __func__, ooa_entry->seridx, ooa_io->scsiio.cdb[0], 11115 ooa_io->scsiio.cdb[1], ooa_io)); 11116 11117 serialize_row = ctl_serialize_table[ooa_entry->seridx]; 11118 11119 switch (serialize_row[pending_entry->seridx]) { 11120 case CTL_SER_BLOCK: 11121 return (CTL_ACTION_BLOCK); 11122 case CTL_SER_EXTENT: 11123 return (ctl_extent_check(ooa_io, pending_io, 11124 (lun->be_lun && lun->be_lun->serseq == CTL_LUN_SERSEQ_ON))); 11125 case CTL_SER_EXTENTOPT: 11126 if ((lun->mode_pages.control_page[CTL_PAGE_CURRENT].queue_flags 11127 & SCP_QUEUE_ALG_MASK) != SCP_QUEUE_ALG_UNRESTRICTED) 11128 return (ctl_extent_check(ooa_io, pending_io, 11129 (lun->be_lun && 11130 lun->be_lun->serseq == CTL_LUN_SERSEQ_ON))); 11131 return (CTL_ACTION_PASS); 11132 case CTL_SER_EXTENTSEQ: 11133 if (lun->be_lun && lun->be_lun->serseq != CTL_LUN_SERSEQ_OFF) 11134 return (ctl_extent_check_seq(ooa_io, pending_io)); 11135 return (CTL_ACTION_PASS); 11136 case CTL_SER_PASS: 11137 return (CTL_ACTION_PASS); 11138 case CTL_SER_BLOCKOPT: 11139 if ((lun->mode_pages.control_page[CTL_PAGE_CURRENT].queue_flags 11140 & SCP_QUEUE_ALG_MASK) != SCP_QUEUE_ALG_UNRESTRICTED) 11141 return (CTL_ACTION_BLOCK); 11142 return (CTL_ACTION_PASS); 11143 case CTL_SER_SKIP: 11144 return (CTL_ACTION_SKIP); 11145 default: 11146 panic("%s: Invalid serialization value %d for %d => %d", 11147 __func__, serialize_row[pending_entry->seridx], 11148 pending_entry->seridx, ooa_entry->seridx); 11149 } 11150 11151 return (CTL_ACTION_ERROR); 11152} 11153 11154/* 11155 * Check for blockage or overlaps against the OOA (Order Of Arrival) queue. 11156 * Assumptions: 11157 * - pending_io is generally either incoming, or on the blocked queue 11158 * - starting I/O is the I/O we want to start the check with. 11159 */ 11160static ctl_action 11161ctl_check_ooa(struct ctl_lun *lun, union ctl_io *pending_io, 11162 union ctl_io *starting_io) 11163{ 11164 union ctl_io *ooa_io; 11165 ctl_action action; 11166 11167 mtx_assert(&lun->lun_lock, MA_OWNED); 11168 11169 /* 11170 * Run back along the OOA queue, starting with the current 11171 * blocked I/O and going through every I/O before it on the 11172 * queue. If starting_io is NULL, we'll just end up returning 11173 * CTL_ACTION_PASS. 11174 */ 11175 for (ooa_io = starting_io; ooa_io != NULL; 11176 ooa_io = (union ctl_io *)TAILQ_PREV(&ooa_io->io_hdr, ctl_ooaq, 11177 ooa_links)){ 11178 11179 /* 11180 * This routine just checks to see whether 11181 * cur_blocked is blocked by ooa_io, which is ahead 11182 * of it in the queue. It doesn't queue/dequeue 11183 * cur_blocked. 11184 */ 11185 action = ctl_check_for_blockage(lun, pending_io, ooa_io); 11186 switch (action) { 11187 case CTL_ACTION_BLOCK: 11188 case CTL_ACTION_OVERLAP: 11189 case CTL_ACTION_OVERLAP_TAG: 11190 case CTL_ACTION_SKIP: 11191 case CTL_ACTION_ERROR: 11192 return (action); 11193 break; /* NOTREACHED */ 11194 case CTL_ACTION_PASS: 11195 break; 11196 default: 11197 panic("%s: Invalid action %d\n", __func__, action); 11198 } 11199 } 11200 11201 return (CTL_ACTION_PASS); 11202} 11203 11204/* 11205 * Assumptions: 11206 * - An I/O has just completed, and has been removed from the per-LUN OOA 11207 * queue, so some items on the blocked queue may now be unblocked. 11208 */ 11209static int 11210ctl_check_blocked(struct ctl_lun *lun) 11211{ 11212 struct ctl_softc *softc = lun->ctl_softc; 11213 union ctl_io *cur_blocked, *next_blocked; 11214 11215 mtx_assert(&lun->lun_lock, MA_OWNED); 11216 11217 /* 11218 * Run forward from the head of the blocked queue, checking each 11219 * entry against the I/Os prior to it on the OOA queue to see if 11220 * there is still any blockage. 11221 * 11222 * We cannot use the TAILQ_FOREACH() macro, because it can't deal 11223 * with our removing a variable on it while it is traversing the 11224 * list. 11225 */ 11226 for (cur_blocked = (union ctl_io *)TAILQ_FIRST(&lun->blocked_queue); 11227 cur_blocked != NULL; cur_blocked = next_blocked) { 11228 union ctl_io *prev_ooa; 11229 ctl_action action; 11230 11231 next_blocked = (union ctl_io *)TAILQ_NEXT(&cur_blocked->io_hdr, 11232 blocked_links); 11233 11234 prev_ooa = (union ctl_io *)TAILQ_PREV(&cur_blocked->io_hdr, 11235 ctl_ooaq, ooa_links); 11236 11237 /* 11238 * If cur_blocked happens to be the first item in the OOA 11239 * queue now, prev_ooa will be NULL, and the action 11240 * returned will just be CTL_ACTION_PASS. 11241 */ 11242 action = ctl_check_ooa(lun, cur_blocked, prev_ooa); 11243 11244 switch (action) { 11245 case CTL_ACTION_BLOCK: 11246 /* Nothing to do here, still blocked */ 11247 break; 11248 case CTL_ACTION_OVERLAP: 11249 case CTL_ACTION_OVERLAP_TAG: 11250 /* 11251 * This shouldn't happen! In theory we've already 11252 * checked this command for overlap... 11253 */ 11254 break; 11255 case CTL_ACTION_PASS: 11256 case CTL_ACTION_SKIP: { 11257 const struct ctl_cmd_entry *entry; 11258 11259 /* 11260 * The skip case shouldn't happen, this transaction 11261 * should have never made it onto the blocked queue. 11262 */ 11263 /* 11264 * This I/O is no longer blocked, we can remove it 11265 * from the blocked queue. Since this is a TAILQ 11266 * (doubly linked list), we can do O(1) removals 11267 * from any place on the list. 11268 */ 11269 TAILQ_REMOVE(&lun->blocked_queue, &cur_blocked->io_hdr, 11270 blocked_links); 11271 cur_blocked->io_hdr.flags &= ~CTL_FLAG_BLOCKED; 11272 11273 if ((softc->ha_mode != CTL_HA_MODE_XFER) && 11274 (cur_blocked->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)){ 11275 /* 11276 * Need to send IO back to original side to 11277 * run 11278 */ 11279 union ctl_ha_msg msg_info; 11280 11281 cur_blocked->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 11282 msg_info.hdr.original_sc = 11283 cur_blocked->io_hdr.original_sc; 11284 msg_info.hdr.serializing_sc = cur_blocked; 11285 msg_info.hdr.msg_type = CTL_MSG_R2R; 11286 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 11287 sizeof(msg_info.hdr), M_NOWAIT); 11288 break; 11289 } 11290 entry = ctl_get_cmd_entry(&cur_blocked->scsiio, NULL); 11291 11292 /* 11293 * Check this I/O for LUN state changes that may 11294 * have happened while this command was blocked. 11295 * The LUN state may have been changed by a command 11296 * ahead of us in the queue, so we need to re-check 11297 * for any states that can be caused by SCSI 11298 * commands. 11299 */ 11300 if (ctl_scsiio_lun_check(lun, entry, 11301 &cur_blocked->scsiio) == 0) { 11302 cur_blocked->io_hdr.flags |= 11303 CTL_FLAG_IS_WAS_ON_RTR; 11304 ctl_enqueue_rtr(cur_blocked); 11305 } else 11306 ctl_done(cur_blocked); 11307 break; 11308 } 11309 default: 11310 /* 11311 * This probably shouldn't happen -- we shouldn't 11312 * get CTL_ACTION_ERROR, or anything else. 11313 */ 11314 break; 11315 } 11316 } 11317 11318 return (CTL_RETVAL_COMPLETE); 11319} 11320 11321/* 11322 * This routine (with one exception) checks LUN flags that can be set by 11323 * commands ahead of us in the OOA queue. These flags have to be checked 11324 * when a command initially comes in, and when we pull a command off the 11325 * blocked queue and are preparing to execute it. The reason we have to 11326 * check these flags for commands on the blocked queue is that the LUN 11327 * state may have been changed by a command ahead of us while we're on the 11328 * blocked queue. 11329 * 11330 * Ordering is somewhat important with these checks, so please pay 11331 * careful attention to the placement of any new checks. 11332 */ 11333static int 11334ctl_scsiio_lun_check(struct ctl_lun *lun, 11335 const struct ctl_cmd_entry *entry, struct ctl_scsiio *ctsio) 11336{ 11337 struct ctl_softc *softc = lun->ctl_softc; 11338 int retval; 11339 uint32_t residx; 11340 11341 retval = 0; 11342 11343 mtx_assert(&lun->lun_lock, MA_OWNED); 11344 11345 /* 11346 * If this shelf is a secondary shelf controller, we may have to 11347 * reject some commands disallowed by HA mode and link state. 11348 */ 11349 if ((lun->flags & CTL_LUN_PRIMARY_SC) == 0) { 11350 if (softc->ha_link == CTL_HA_LINK_OFFLINE && 11351 (entry->flags & CTL_CMD_FLAG_OK_ON_UNAVAIL) == 0) { 11352 ctl_set_lun_unavail(ctsio); 11353 retval = 1; 11354 goto bailout; 11355 } 11356 if ((lun->flags & CTL_LUN_PEER_SC_PRIMARY) == 0 && 11357 (entry->flags & CTL_CMD_FLAG_OK_ON_UNAVAIL) == 0) { 11358 ctl_set_lun_transit(ctsio); 11359 retval = 1; 11360 goto bailout; 11361 } 11362 if (softc->ha_mode == CTL_HA_MODE_ACT_STBY && 11363 (entry->flags & CTL_CMD_FLAG_OK_ON_STANDBY) == 0) { 11364 ctl_set_lun_standby(ctsio); 11365 retval = 1; 11366 goto bailout; 11367 } 11368 11369 /* The rest of checks are only done on executing side */ 11370 if (softc->ha_mode == CTL_HA_MODE_XFER) 11371 goto bailout; 11372 } 11373 11374 if (entry->pattern & CTL_LUN_PAT_WRITE) { 11375 if (lun->be_lun && 11376 lun->be_lun->flags & CTL_LUN_FLAG_READONLY) { 11377 ctl_set_hw_write_protected(ctsio); 11378 retval = 1; 11379 goto bailout; 11380 } 11381 if ((lun->mode_pages.control_page[CTL_PAGE_CURRENT] 11382 .eca_and_aen & SCP_SWP) != 0) { 11383 ctl_set_sense(ctsio, /*current_error*/ 1, 11384 /*sense_key*/ SSD_KEY_DATA_PROTECT, 11385 /*asc*/ 0x27, /*ascq*/ 0x02, SSD_ELEM_NONE); 11386 retval = 1; 11387 goto bailout; 11388 } 11389 } 11390 11391 /* 11392 * Check for a reservation conflict. If this command isn't allowed 11393 * even on reserved LUNs, and if this initiator isn't the one who 11394 * reserved us, reject the command with a reservation conflict. 11395 */ 11396 residx = ctl_get_initindex(&ctsio->io_hdr.nexus); 11397 if ((lun->flags & CTL_LUN_RESERVED) 11398 && ((entry->flags & CTL_CMD_FLAG_ALLOW_ON_RESV) == 0)) { 11399 if (lun->res_idx != residx) { 11400 ctl_set_reservation_conflict(ctsio); 11401 retval = 1; 11402 goto bailout; 11403 } 11404 } 11405 11406 if ((lun->flags & CTL_LUN_PR_RESERVED) == 0 || 11407 (entry->flags & CTL_CMD_FLAG_ALLOW_ON_PR_RESV)) { 11408 /* No reservation or command is allowed. */; 11409 } else if ((entry->flags & CTL_CMD_FLAG_ALLOW_ON_PR_WRESV) && 11410 (lun->pr_res_type == SPR_TYPE_WR_EX || 11411 lun->pr_res_type == SPR_TYPE_WR_EX_RO || 11412 lun->pr_res_type == SPR_TYPE_WR_EX_AR)) { 11413 /* The command is allowed for Write Exclusive resv. */; 11414 } else { 11415 /* 11416 * if we aren't registered or it's a res holder type 11417 * reservation and this isn't the res holder then set a 11418 * conflict. 11419 */ 11420 if (ctl_get_prkey(lun, residx) == 0 || 11421 (residx != lun->pr_res_idx && lun->pr_res_type < 4)) { 11422 ctl_set_reservation_conflict(ctsio); 11423 retval = 1; 11424 goto bailout; 11425 } 11426 } 11427 11428 if ((entry->flags & CTL_CMD_FLAG_OK_ON_NO_MEDIA) == 0) { 11429 if (lun->flags & CTL_LUN_EJECTED) 11430 ctl_set_lun_ejected(ctsio); 11431 else if (lun->flags & CTL_LUN_NO_MEDIA) { 11432 if (lun->flags & CTL_LUN_REMOVABLE) 11433 ctl_set_lun_no_media(ctsio); 11434 else 11435 ctl_set_lun_int_reqd(ctsio); 11436 } else if (lun->flags & CTL_LUN_STOPPED) 11437 ctl_set_lun_stopped(ctsio); 11438 else 11439 goto bailout; 11440 retval = 1; 11441 goto bailout; 11442 } 11443 11444bailout: 11445 return (retval); 11446} 11447 11448static void 11449ctl_failover_io(union ctl_io *io, int have_lock) 11450{ 11451 ctl_set_busy(&io->scsiio); 11452 ctl_done(io); 11453} 11454 11455static void 11456ctl_failover_lun(union ctl_io *rio) 11457{ 11458 struct ctl_softc *softc = control_softc; 11459 struct ctl_lun *lun; 11460 struct ctl_io_hdr *io, *next_io; 11461 uint32_t targ_lun; 11462 11463 targ_lun = rio->io_hdr.nexus.targ_mapped_lun; 11464 CTL_DEBUG_PRINT(("FAILOVER for lun %ju\n", targ_lun)); 11465 11466 /* Find and lock the LUN. */ 11467 mtx_lock(&softc->ctl_lock); 11468 if ((targ_lun < CTL_MAX_LUNS) && 11469 ((lun = softc->ctl_luns[targ_lun]) != NULL)) { 11470 mtx_lock(&lun->lun_lock); 11471 mtx_unlock(&softc->ctl_lock); 11472 if (lun->flags & CTL_LUN_DISABLED) { 11473 mtx_unlock(&lun->lun_lock); 11474 return; 11475 } 11476 } else { 11477 mtx_unlock(&softc->ctl_lock); 11478 return; 11479 } 11480 11481 if (softc->ha_mode == CTL_HA_MODE_XFER) { 11482 TAILQ_FOREACH_SAFE(io, &lun->ooa_queue, ooa_links, next_io) { 11483 /* We are master */ 11484 if (io->flags & CTL_FLAG_FROM_OTHER_SC) { 11485 if (io->flags & CTL_FLAG_IO_ACTIVE) { 11486 io->flags |= CTL_FLAG_ABORT; 11487 io->flags |= CTL_FLAG_FAILOVER; 11488 } else { /* This can be only due to DATAMOVE */ 11489 io->msg_type = CTL_MSG_DATAMOVE_DONE; 11490 io->flags &= ~CTL_FLAG_DMA_INPROG; 11491 io->flags |= CTL_FLAG_IO_ACTIVE; 11492 io->port_status = 31340; 11493 ctl_enqueue_isc((union ctl_io *)io); 11494 } 11495 } 11496 /* We are slave */ 11497 if (io->flags & CTL_FLAG_SENT_2OTHER_SC) { 11498 io->flags &= ~CTL_FLAG_SENT_2OTHER_SC; 11499 if (io->flags & CTL_FLAG_IO_ACTIVE) { 11500 io->flags |= CTL_FLAG_FAILOVER; 11501 } else { 11502 ctl_set_busy(&((union ctl_io *)io)-> 11503 scsiio); 11504 ctl_done((union ctl_io *)io); 11505 } 11506 } 11507 } 11508 } else { /* SERIALIZE modes */ 11509 TAILQ_FOREACH_SAFE(io, &lun->blocked_queue, blocked_links, 11510 next_io) { 11511 /* We are master */ 11512 if (io->flags & CTL_FLAG_FROM_OTHER_SC) { 11513 TAILQ_REMOVE(&lun->blocked_queue, io, 11514 blocked_links); 11515 io->flags &= ~CTL_FLAG_BLOCKED; 11516 TAILQ_REMOVE(&lun->ooa_queue, io, ooa_links); 11517 ctl_free_io((union ctl_io *)io); 11518 } 11519 } 11520 TAILQ_FOREACH_SAFE(io, &lun->ooa_queue, ooa_links, next_io) { 11521 /* We are master */ 11522 if (io->flags & CTL_FLAG_FROM_OTHER_SC) { 11523 TAILQ_REMOVE(&lun->ooa_queue, io, ooa_links); 11524 ctl_free_io((union ctl_io *)io); 11525 } 11526 /* We are slave */ 11527 if (io->flags & CTL_FLAG_SENT_2OTHER_SC) { 11528 io->flags &= ~CTL_FLAG_SENT_2OTHER_SC; 11529 if (!(io->flags & CTL_FLAG_IO_ACTIVE)) { 11530 ctl_set_busy(&((union ctl_io *)io)-> 11531 scsiio); 11532 ctl_done((union ctl_io *)io); 11533 } 11534 } 11535 } 11536 ctl_check_blocked(lun); 11537 } 11538 mtx_unlock(&lun->lun_lock); 11539} 11540 11541static int 11542ctl_scsiio_precheck(struct ctl_softc *softc, struct ctl_scsiio *ctsio) 11543{ 11544 struct ctl_lun *lun; 11545 const struct ctl_cmd_entry *entry; 11546 uint32_t initidx, targ_lun; 11547 int retval; 11548 11549 retval = 0; 11550 11551 lun = NULL; 11552 11553 targ_lun = ctsio->io_hdr.nexus.targ_mapped_lun; 11554 if ((targ_lun < CTL_MAX_LUNS) 11555 && ((lun = softc->ctl_luns[targ_lun]) != NULL)) { 11556 /* 11557 * If the LUN is invalid, pretend that it doesn't exist. 11558 * It will go away as soon as all pending I/O has been 11559 * completed. 11560 */ 11561 mtx_lock(&lun->lun_lock); 11562 if (lun->flags & CTL_LUN_DISABLED) { 11563 mtx_unlock(&lun->lun_lock); 11564 lun = NULL; 11565 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr = NULL; 11566 ctsio->io_hdr.ctl_private[CTL_PRIV_BACKEND_LUN].ptr = NULL; 11567 } else { 11568 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr = lun; 11569 ctsio->io_hdr.ctl_private[CTL_PRIV_BACKEND_LUN].ptr = 11570 lun->be_lun; 11571 11572 /* 11573 * Every I/O goes into the OOA queue for a 11574 * particular LUN, and stays there until completion. 11575 */ 11576#ifdef CTL_TIME_IO 11577 if (TAILQ_EMPTY(&lun->ooa_queue)) { 11578 lun->idle_time += getsbinuptime() - 11579 lun->last_busy; 11580 } 11581#endif 11582 TAILQ_INSERT_TAIL(&lun->ooa_queue, &ctsio->io_hdr, 11583 ooa_links); 11584 } 11585 } else { 11586 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr = NULL; 11587 ctsio->io_hdr.ctl_private[CTL_PRIV_BACKEND_LUN].ptr = NULL; 11588 } 11589 11590 /* Get command entry and return error if it is unsuppotyed. */ 11591 entry = ctl_validate_command(ctsio); 11592 if (entry == NULL) { 11593 if (lun) 11594 mtx_unlock(&lun->lun_lock); 11595 return (retval); 11596 } 11597 11598 ctsio->io_hdr.flags &= ~CTL_FLAG_DATA_MASK; 11599 ctsio->io_hdr.flags |= entry->flags & CTL_FLAG_DATA_MASK; 11600 11601 /* 11602 * Check to see whether we can send this command to LUNs that don't 11603 * exist. This should pretty much only be the case for inquiry 11604 * and request sense. Further checks, below, really require having 11605 * a LUN, so we can't really check the command anymore. Just put 11606 * it on the rtr queue. 11607 */ 11608 if (lun == NULL) { 11609 if (entry->flags & CTL_CMD_FLAG_OK_ON_NO_LUN) { 11610 ctsio->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 11611 ctl_enqueue_rtr((union ctl_io *)ctsio); 11612 return (retval); 11613 } 11614 11615 ctl_set_unsupported_lun(ctsio); 11616 ctl_done((union ctl_io *)ctsio); 11617 CTL_DEBUG_PRINT(("ctl_scsiio_precheck: bailing out due to invalid LUN\n")); 11618 return (retval); 11619 } else { 11620 /* 11621 * Make sure we support this particular command on this LUN. 11622 * e.g., we don't support writes to the control LUN. 11623 */ 11624 if (!ctl_cmd_applicable(lun->be_lun->lun_type, entry)) { 11625 mtx_unlock(&lun->lun_lock); 11626 ctl_set_invalid_opcode(ctsio); 11627 ctl_done((union ctl_io *)ctsio); 11628 return (retval); 11629 } 11630 } 11631 11632 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 11633 11634#ifdef CTL_WITH_CA 11635 /* 11636 * If we've got a request sense, it'll clear the contingent 11637 * allegiance condition. Otherwise, if we have a CA condition for 11638 * this initiator, clear it, because it sent down a command other 11639 * than request sense. 11640 */ 11641 if ((ctsio->cdb[0] != REQUEST_SENSE) 11642 && (ctl_is_set(lun->have_ca, initidx))) 11643 ctl_clear_mask(lun->have_ca, initidx); 11644#endif 11645 11646 /* 11647 * If the command has this flag set, it handles its own unit 11648 * attention reporting, we shouldn't do anything. Otherwise we 11649 * check for any pending unit attentions, and send them back to the 11650 * initiator. We only do this when a command initially comes in, 11651 * not when we pull it off the blocked queue. 11652 * 11653 * According to SAM-3, section 5.3.2, the order that things get 11654 * presented back to the host is basically unit attentions caused 11655 * by some sort of reset event, busy status, reservation conflicts 11656 * or task set full, and finally any other status. 11657 * 11658 * One issue here is that some of the unit attentions we report 11659 * don't fall into the "reset" category (e.g. "reported luns data 11660 * has changed"). So reporting it here, before the reservation 11661 * check, may be technically wrong. I guess the only thing to do 11662 * would be to check for and report the reset events here, and then 11663 * check for the other unit attention types after we check for a 11664 * reservation conflict. 11665 * 11666 * XXX KDM need to fix this 11667 */ 11668 if ((entry->flags & CTL_CMD_FLAG_NO_SENSE) == 0) { 11669 ctl_ua_type ua_type; 11670 11671 ua_type = ctl_build_ua(lun, initidx, &ctsio->sense_data, 11672 SSD_TYPE_NONE); 11673 if (ua_type != CTL_UA_NONE) { 11674 mtx_unlock(&lun->lun_lock); 11675 ctsio->scsi_status = SCSI_STATUS_CHECK_COND; 11676 ctsio->io_hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 11677 ctsio->sense_len = SSD_FULL_SIZE; 11678 ctl_done((union ctl_io *)ctsio); 11679 return (retval); 11680 } 11681 } 11682 11683 11684 if (ctl_scsiio_lun_check(lun, entry, ctsio) != 0) { 11685 mtx_unlock(&lun->lun_lock); 11686 ctl_done((union ctl_io *)ctsio); 11687 return (retval); 11688 } 11689 11690 /* 11691 * XXX CHD this is where we want to send IO to other side if 11692 * this LUN is secondary on this SC. We will need to make a copy 11693 * of the IO and flag the IO on this side as SENT_2OTHER and the flag 11694 * the copy we send as FROM_OTHER. 11695 * We also need to stuff the address of the original IO so we can 11696 * find it easily. Something similar will need be done on the other 11697 * side so when we are done we can find the copy. 11698 */ 11699 if ((lun->flags & CTL_LUN_PRIMARY_SC) == 0 && 11700 (lun->flags & CTL_LUN_PEER_SC_PRIMARY) != 0 && 11701 (entry->flags & CTL_CMD_FLAG_RUN_HERE) == 0) { 11702 union ctl_ha_msg msg_info; 11703 int isc_retval; 11704 11705 ctsio->io_hdr.flags |= CTL_FLAG_SENT_2OTHER_SC; 11706 ctsio->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 11707 mtx_unlock(&lun->lun_lock); 11708 11709 msg_info.hdr.msg_type = CTL_MSG_SERIALIZE; 11710 msg_info.hdr.original_sc = (union ctl_io *)ctsio; 11711 msg_info.hdr.serializing_sc = NULL; 11712 msg_info.hdr.nexus = ctsio->io_hdr.nexus; 11713 msg_info.scsi.tag_num = ctsio->tag_num; 11714 msg_info.scsi.tag_type = ctsio->tag_type; 11715 msg_info.scsi.cdb_len = ctsio->cdb_len; 11716 memcpy(msg_info.scsi.cdb, ctsio->cdb, CTL_MAX_CDBLEN); 11717 11718 if ((isc_retval = ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 11719 sizeof(msg_info.scsi) - sizeof(msg_info.scsi.sense_data), 11720 M_WAITOK)) > CTL_HA_STATUS_SUCCESS) { 11721 ctl_set_busy(ctsio); 11722 ctl_done((union ctl_io *)ctsio); 11723 return (retval); 11724 } 11725 return (retval); 11726 } 11727 11728 switch (ctl_check_ooa(lun, (union ctl_io *)ctsio, 11729 (union ctl_io *)TAILQ_PREV(&ctsio->io_hdr, 11730 ctl_ooaq, ooa_links))) { 11731 case CTL_ACTION_BLOCK: 11732 ctsio->io_hdr.flags |= CTL_FLAG_BLOCKED; 11733 TAILQ_INSERT_TAIL(&lun->blocked_queue, &ctsio->io_hdr, 11734 blocked_links); 11735 mtx_unlock(&lun->lun_lock); 11736 return (retval); 11737 case CTL_ACTION_PASS: 11738 case CTL_ACTION_SKIP: 11739 ctsio->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 11740 mtx_unlock(&lun->lun_lock); 11741 ctl_enqueue_rtr((union ctl_io *)ctsio); 11742 break; 11743 case CTL_ACTION_OVERLAP: 11744 mtx_unlock(&lun->lun_lock); 11745 ctl_set_overlapped_cmd(ctsio); 11746 ctl_done((union ctl_io *)ctsio); 11747 break; 11748 case CTL_ACTION_OVERLAP_TAG: 11749 mtx_unlock(&lun->lun_lock); 11750 ctl_set_overlapped_tag(ctsio, ctsio->tag_num & 0xff); 11751 ctl_done((union ctl_io *)ctsio); 11752 break; 11753 case CTL_ACTION_ERROR: 11754 default: 11755 mtx_unlock(&lun->lun_lock); 11756 ctl_set_internal_failure(ctsio, 11757 /*sks_valid*/ 0, 11758 /*retry_count*/ 0); 11759 ctl_done((union ctl_io *)ctsio); 11760 break; 11761 } 11762 return (retval); 11763} 11764 11765const struct ctl_cmd_entry * 11766ctl_get_cmd_entry(struct ctl_scsiio *ctsio, int *sa) 11767{ 11768 const struct ctl_cmd_entry *entry; 11769 int service_action; 11770 11771 entry = &ctl_cmd_table[ctsio->cdb[0]]; 11772 if (sa) 11773 *sa = ((entry->flags & CTL_CMD_FLAG_SA5) != 0); 11774 if (entry->flags & CTL_CMD_FLAG_SA5) { 11775 service_action = ctsio->cdb[1] & SERVICE_ACTION_MASK; 11776 entry = &((const struct ctl_cmd_entry *) 11777 entry->execute)[service_action]; 11778 } 11779 return (entry); 11780} 11781 11782const struct ctl_cmd_entry * 11783ctl_validate_command(struct ctl_scsiio *ctsio) 11784{ 11785 const struct ctl_cmd_entry *entry; 11786 int i, sa; 11787 uint8_t diff; 11788 11789 entry = ctl_get_cmd_entry(ctsio, &sa); 11790 if (entry->execute == NULL) { 11791 if (sa) 11792 ctl_set_invalid_field(ctsio, 11793 /*sks_valid*/ 1, 11794 /*command*/ 1, 11795 /*field*/ 1, 11796 /*bit_valid*/ 1, 11797 /*bit*/ 4); 11798 else 11799 ctl_set_invalid_opcode(ctsio); 11800 ctl_done((union ctl_io *)ctsio); 11801 return (NULL); 11802 } 11803 KASSERT(entry->length > 0, 11804 ("Not defined length for command 0x%02x/0x%02x", 11805 ctsio->cdb[0], ctsio->cdb[1])); 11806 for (i = 1; i < entry->length; i++) { 11807 diff = ctsio->cdb[i] & ~entry->usage[i - 1]; 11808 if (diff == 0) 11809 continue; 11810 ctl_set_invalid_field(ctsio, 11811 /*sks_valid*/ 1, 11812 /*command*/ 1, 11813 /*field*/ i, 11814 /*bit_valid*/ 1, 11815 /*bit*/ fls(diff) - 1); 11816 ctl_done((union ctl_io *)ctsio); 11817 return (NULL); 11818 } 11819 return (entry); 11820} 11821 11822static int 11823ctl_cmd_applicable(uint8_t lun_type, const struct ctl_cmd_entry *entry) 11824{ 11825 11826 switch (lun_type) { 11827 case T_DIRECT: 11828 if ((entry->flags & CTL_CMD_FLAG_OK_ON_DIRECT) == 0) 11829 return (0); 11830 break; 11831 case T_PROCESSOR: 11832 if ((entry->flags & CTL_CMD_FLAG_OK_ON_PROC) == 0) 11833 return (0); 11834 break; 11835 case T_CDROM: 11836 if ((entry->flags & CTL_CMD_FLAG_OK_ON_CDROM) == 0) 11837 return (0); 11838 break; 11839 default: 11840 return (0); 11841 } 11842 return (1); 11843} 11844 11845static int 11846ctl_scsiio(struct ctl_scsiio *ctsio) 11847{ 11848 int retval; 11849 const struct ctl_cmd_entry *entry; 11850 11851 retval = CTL_RETVAL_COMPLETE; 11852 11853 CTL_DEBUG_PRINT(("ctl_scsiio cdb[0]=%02X\n", ctsio->cdb[0])); 11854 11855 entry = ctl_get_cmd_entry(ctsio, NULL); 11856 11857 /* 11858 * If this I/O has been aborted, just send it straight to 11859 * ctl_done() without executing it. 11860 */ 11861 if (ctsio->io_hdr.flags & CTL_FLAG_ABORT) { 11862 ctl_done((union ctl_io *)ctsio); 11863 goto bailout; 11864 } 11865 11866 /* 11867 * All the checks should have been handled by ctl_scsiio_precheck(). 11868 * We should be clear now to just execute the I/O. 11869 */ 11870 retval = entry->execute(ctsio); 11871 11872bailout: 11873 return (retval); 11874} 11875 11876/* 11877 * Since we only implement one target right now, a bus reset simply resets 11878 * our single target. 11879 */ 11880static int 11881ctl_bus_reset(struct ctl_softc *softc, union ctl_io *io) 11882{ 11883 return(ctl_target_reset(softc, io, CTL_UA_BUS_RESET)); 11884} 11885 11886static int 11887ctl_target_reset(struct ctl_softc *softc, union ctl_io *io, 11888 ctl_ua_type ua_type) 11889{ 11890 struct ctl_port *port; 11891 struct ctl_lun *lun; 11892 int retval; 11893 11894 if (!(io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)) { 11895 union ctl_ha_msg msg_info; 11896 11897 msg_info.hdr.nexus = io->io_hdr.nexus; 11898 if (ua_type==CTL_UA_TARG_RESET) 11899 msg_info.task.task_action = CTL_TASK_TARGET_RESET; 11900 else 11901 msg_info.task.task_action = CTL_TASK_BUS_RESET; 11902 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 11903 msg_info.hdr.original_sc = NULL; 11904 msg_info.hdr.serializing_sc = NULL; 11905 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 11906 sizeof(msg_info.task), M_WAITOK); 11907 } 11908 retval = 0; 11909 11910 mtx_lock(&softc->ctl_lock); 11911 port = ctl_io_port(&io->io_hdr); 11912 STAILQ_FOREACH(lun, &softc->lun_list, links) { 11913 if (port != NULL && 11914 ctl_lun_map_to_port(port, lun->lun) >= CTL_MAX_LUNS) 11915 continue; 11916 retval += ctl_do_lun_reset(lun, io, ua_type); 11917 } 11918 mtx_unlock(&softc->ctl_lock); 11919 io->taskio.task_status = CTL_TASK_FUNCTION_COMPLETE; 11920 return (retval); 11921} 11922 11923/* 11924 * The LUN should always be set. The I/O is optional, and is used to 11925 * distinguish between I/Os sent by this initiator, and by other 11926 * initiators. We set unit attention for initiators other than this one. 11927 * SAM-3 is vague on this point. It does say that a unit attention should 11928 * be established for other initiators when a LUN is reset (see section 11929 * 5.7.3), but it doesn't specifically say that the unit attention should 11930 * be established for this particular initiator when a LUN is reset. Here 11931 * is the relevant text, from SAM-3 rev 8: 11932 * 11933 * 5.7.2 When a SCSI initiator port aborts its own tasks 11934 * 11935 * When a SCSI initiator port causes its own task(s) to be aborted, no 11936 * notification that the task(s) have been aborted shall be returned to 11937 * the SCSI initiator port other than the completion response for the 11938 * command or task management function action that caused the task(s) to 11939 * be aborted and notification(s) associated with related effects of the 11940 * action (e.g., a reset unit attention condition). 11941 * 11942 * XXX KDM for now, we're setting unit attention for all initiators. 11943 */ 11944static int 11945ctl_do_lun_reset(struct ctl_lun *lun, union ctl_io *io, ctl_ua_type ua_type) 11946{ 11947 union ctl_io *xio; 11948#if 0 11949 uint32_t initidx; 11950#endif 11951 int i; 11952 11953 mtx_lock(&lun->lun_lock); 11954 /* 11955 * Run through the OOA queue and abort each I/O. 11956 */ 11957 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 11958 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 11959 xio->io_hdr.flags |= CTL_FLAG_ABORT | CTL_FLAG_ABORT_STATUS; 11960 } 11961 11962 /* 11963 * This version sets unit attention for every 11964 */ 11965#if 0 11966 initidx = ctl_get_initindex(&io->io_hdr.nexus); 11967 ctl_est_ua_all(lun, initidx, ua_type); 11968#else 11969 ctl_est_ua_all(lun, -1, ua_type); 11970#endif 11971 11972 /* 11973 * A reset (any kind, really) clears reservations established with 11974 * RESERVE/RELEASE. It does not clear reservations established 11975 * with PERSISTENT RESERVE OUT, but we don't support that at the 11976 * moment anyway. See SPC-2, section 5.6. SPC-3 doesn't address 11977 * reservations made with the RESERVE/RELEASE commands, because 11978 * those commands are obsolete in SPC-3. 11979 */ 11980 lun->flags &= ~CTL_LUN_RESERVED; 11981 11982#ifdef CTL_WITH_CA 11983 for (i = 0; i < CTL_MAX_INITIATORS; i++) 11984 ctl_clear_mask(lun->have_ca, i); 11985#endif 11986 lun->prevent_count = 0; 11987 for (i = 0; i < CTL_MAX_INITIATORS; i++) 11988 ctl_clear_mask(lun->prevent, i); 11989 mtx_unlock(&lun->lun_lock); 11990 11991 return (0); 11992} 11993 11994static int 11995ctl_lun_reset(struct ctl_softc *softc, union ctl_io *io) 11996{ 11997 struct ctl_lun *lun; 11998 uint32_t targ_lun; 11999 int retval; 12000 12001 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12002 mtx_lock(&softc->ctl_lock); 12003 if ((targ_lun >= CTL_MAX_LUNS) || 12004 (lun = softc->ctl_luns[targ_lun]) == NULL) { 12005 mtx_unlock(&softc->ctl_lock); 12006 io->taskio.task_status = CTL_TASK_LUN_DOES_NOT_EXIST; 12007 return (1); 12008 } 12009 retval = ctl_do_lun_reset(lun, io, CTL_UA_LUN_RESET); 12010 mtx_unlock(&softc->ctl_lock); 12011 io->taskio.task_status = CTL_TASK_FUNCTION_COMPLETE; 12012 12013 if ((io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) == 0) { 12014 union ctl_ha_msg msg_info; 12015 12016 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 12017 msg_info.hdr.nexus = io->io_hdr.nexus; 12018 msg_info.task.task_action = CTL_TASK_LUN_RESET; 12019 msg_info.hdr.original_sc = NULL; 12020 msg_info.hdr.serializing_sc = NULL; 12021 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 12022 sizeof(msg_info.task), M_WAITOK); 12023 } 12024 return (retval); 12025} 12026 12027static void 12028ctl_abort_tasks_lun(struct ctl_lun *lun, uint32_t targ_port, uint32_t init_id, 12029 int other_sc) 12030{ 12031 union ctl_io *xio; 12032 12033 mtx_assert(&lun->lun_lock, MA_OWNED); 12034 12035 /* 12036 * Run through the OOA queue and attempt to find the given I/O. 12037 * The target port, initiator ID, tag type and tag number have to 12038 * match the values that we got from the initiator. If we have an 12039 * untagged command to abort, simply abort the first untagged command 12040 * we come to. We only allow one untagged command at a time of course. 12041 */ 12042 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 12043 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 12044 12045 if ((targ_port == UINT32_MAX || 12046 targ_port == xio->io_hdr.nexus.targ_port) && 12047 (init_id == UINT32_MAX || 12048 init_id == xio->io_hdr.nexus.initid)) { 12049 if (targ_port != xio->io_hdr.nexus.targ_port || 12050 init_id != xio->io_hdr.nexus.initid) 12051 xio->io_hdr.flags |= CTL_FLAG_ABORT_STATUS; 12052 xio->io_hdr.flags |= CTL_FLAG_ABORT; 12053 if (!other_sc && !(lun->flags & CTL_LUN_PRIMARY_SC)) { 12054 union ctl_ha_msg msg_info; 12055 12056 msg_info.hdr.nexus = xio->io_hdr.nexus; 12057 msg_info.task.task_action = CTL_TASK_ABORT_TASK; 12058 msg_info.task.tag_num = xio->scsiio.tag_num; 12059 msg_info.task.tag_type = xio->scsiio.tag_type; 12060 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 12061 msg_info.hdr.original_sc = NULL; 12062 msg_info.hdr.serializing_sc = NULL; 12063 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 12064 sizeof(msg_info.task), M_NOWAIT); 12065 } 12066 } 12067 } 12068} 12069 12070static int 12071ctl_abort_task_set(union ctl_io *io) 12072{ 12073 struct ctl_softc *softc = control_softc; 12074 struct ctl_lun *lun; 12075 uint32_t targ_lun; 12076 12077 /* 12078 * Look up the LUN. 12079 */ 12080 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12081 mtx_lock(&softc->ctl_lock); 12082 if ((targ_lun >= CTL_MAX_LUNS) || 12083 (lun = softc->ctl_luns[targ_lun]) == NULL) { 12084 mtx_unlock(&softc->ctl_lock); 12085 io->taskio.task_status = CTL_TASK_LUN_DOES_NOT_EXIST; 12086 return (1); 12087 } 12088 12089 mtx_lock(&lun->lun_lock); 12090 mtx_unlock(&softc->ctl_lock); 12091 if (io->taskio.task_action == CTL_TASK_ABORT_TASK_SET) { 12092 ctl_abort_tasks_lun(lun, io->io_hdr.nexus.targ_port, 12093 io->io_hdr.nexus.initid, 12094 (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) != 0); 12095 } else { /* CTL_TASK_CLEAR_TASK_SET */ 12096 ctl_abort_tasks_lun(lun, UINT32_MAX, UINT32_MAX, 12097 (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) != 0); 12098 } 12099 mtx_unlock(&lun->lun_lock); 12100 io->taskio.task_status = CTL_TASK_FUNCTION_COMPLETE; 12101 return (0); 12102} 12103 12104static int 12105ctl_i_t_nexus_reset(union ctl_io *io) 12106{ 12107 struct ctl_softc *softc = control_softc; 12108 struct ctl_lun *lun; 12109 uint32_t initidx; 12110 12111 if (!(io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)) { 12112 union ctl_ha_msg msg_info; 12113 12114 msg_info.hdr.nexus = io->io_hdr.nexus; 12115 msg_info.task.task_action = CTL_TASK_I_T_NEXUS_RESET; 12116 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 12117 msg_info.hdr.original_sc = NULL; 12118 msg_info.hdr.serializing_sc = NULL; 12119 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 12120 sizeof(msg_info.task), M_WAITOK); 12121 } 12122 12123 initidx = ctl_get_initindex(&io->io_hdr.nexus); 12124 mtx_lock(&softc->ctl_lock); 12125 STAILQ_FOREACH(lun, &softc->lun_list, links) { 12126 mtx_lock(&lun->lun_lock); 12127 ctl_abort_tasks_lun(lun, io->io_hdr.nexus.targ_port, 12128 io->io_hdr.nexus.initid, 1); 12129#ifdef CTL_WITH_CA 12130 ctl_clear_mask(lun->have_ca, initidx); 12131#endif 12132 if ((lun->flags & CTL_LUN_RESERVED) && (lun->res_idx == initidx)) 12133 lun->flags &= ~CTL_LUN_RESERVED; 12134 if (ctl_is_set(lun->prevent, initidx)) { 12135 ctl_clear_mask(lun->prevent, initidx); 12136 lun->prevent_count--; 12137 } 12138 ctl_est_ua(lun, initidx, CTL_UA_I_T_NEXUS_LOSS); 12139 mtx_unlock(&lun->lun_lock); 12140 } 12141 mtx_unlock(&softc->ctl_lock); 12142 io->taskio.task_status = CTL_TASK_FUNCTION_COMPLETE; 12143 return (0); 12144} 12145 12146static int 12147ctl_abort_task(union ctl_io *io) 12148{ 12149 union ctl_io *xio; 12150 struct ctl_lun *lun; 12151 struct ctl_softc *softc; 12152#if 0 12153 struct sbuf sb; 12154 char printbuf[128]; 12155#endif 12156 int found; 12157 uint32_t targ_lun; 12158 12159 softc = control_softc; 12160 found = 0; 12161 12162 /* 12163 * Look up the LUN. 12164 */ 12165 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12166 mtx_lock(&softc->ctl_lock); 12167 if ((targ_lun >= CTL_MAX_LUNS) || 12168 (lun = softc->ctl_luns[targ_lun]) == NULL) { 12169 mtx_unlock(&softc->ctl_lock); 12170 io->taskio.task_status = CTL_TASK_LUN_DOES_NOT_EXIST; 12171 return (1); 12172 } 12173 12174#if 0 12175 printf("ctl_abort_task: called for lun %lld, tag %d type %d\n", 12176 lun->lun, io->taskio.tag_num, io->taskio.tag_type); 12177#endif 12178 12179 mtx_lock(&lun->lun_lock); 12180 mtx_unlock(&softc->ctl_lock); 12181 /* 12182 * Run through the OOA queue and attempt to find the given I/O. 12183 * The target port, initiator ID, tag type and tag number have to 12184 * match the values that we got from the initiator. If we have an 12185 * untagged command to abort, simply abort the first untagged command 12186 * we come to. We only allow one untagged command at a time of course. 12187 */ 12188 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 12189 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 12190#if 0 12191 sbuf_new(&sb, printbuf, sizeof(printbuf), SBUF_FIXEDLEN); 12192 12193 sbuf_printf(&sb, "LUN %lld tag %d type %d%s%s%s%s: ", 12194 lun->lun, xio->scsiio.tag_num, 12195 xio->scsiio.tag_type, 12196 (xio->io_hdr.blocked_links.tqe_prev 12197 == NULL) ? "" : " BLOCKED", 12198 (xio->io_hdr.flags & 12199 CTL_FLAG_DMA_INPROG) ? " DMA" : "", 12200 (xio->io_hdr.flags & 12201 CTL_FLAG_ABORT) ? " ABORT" : "", 12202 (xio->io_hdr.flags & 12203 CTL_FLAG_IS_WAS_ON_RTR ? " RTR" : "")); 12204 ctl_scsi_command_string(&xio->scsiio, NULL, &sb); 12205 sbuf_finish(&sb); 12206 printf("%s\n", sbuf_data(&sb)); 12207#endif 12208 12209 if ((xio->io_hdr.nexus.targ_port != io->io_hdr.nexus.targ_port) 12210 || (xio->io_hdr.nexus.initid != io->io_hdr.nexus.initid) 12211 || (xio->io_hdr.flags & CTL_FLAG_ABORT)) 12212 continue; 12213 12214 /* 12215 * If the abort says that the task is untagged, the 12216 * task in the queue must be untagged. Otherwise, 12217 * we just check to see whether the tag numbers 12218 * match. This is because the QLogic firmware 12219 * doesn't pass back the tag type in an abort 12220 * request. 12221 */ 12222#if 0 12223 if (((xio->scsiio.tag_type == CTL_TAG_UNTAGGED) 12224 && (io->taskio.tag_type == CTL_TAG_UNTAGGED)) 12225 || (xio->scsiio.tag_num == io->taskio.tag_num)) 12226#endif 12227 /* 12228 * XXX KDM we've got problems with FC, because it 12229 * doesn't send down a tag type with aborts. So we 12230 * can only really go by the tag number... 12231 * This may cause problems with parallel SCSI. 12232 * Need to figure that out!! 12233 */ 12234 if (xio->scsiio.tag_num == io->taskio.tag_num) { 12235 xio->io_hdr.flags |= CTL_FLAG_ABORT; 12236 found = 1; 12237 if ((io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) == 0 && 12238 !(lun->flags & CTL_LUN_PRIMARY_SC)) { 12239 union ctl_ha_msg msg_info; 12240 12241 msg_info.hdr.nexus = io->io_hdr.nexus; 12242 msg_info.task.task_action = CTL_TASK_ABORT_TASK; 12243 msg_info.task.tag_num = io->taskio.tag_num; 12244 msg_info.task.tag_type = io->taskio.tag_type; 12245 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 12246 msg_info.hdr.original_sc = NULL; 12247 msg_info.hdr.serializing_sc = NULL; 12248#if 0 12249 printf("Sent Abort to other side\n"); 12250#endif 12251 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 12252 sizeof(msg_info.task), M_NOWAIT); 12253 } 12254#if 0 12255 printf("ctl_abort_task: found I/O to abort\n"); 12256#endif 12257 } 12258 } 12259 mtx_unlock(&lun->lun_lock); 12260 12261 if (found == 0) { 12262 /* 12263 * This isn't really an error. It's entirely possible for 12264 * the abort and command completion to cross on the wire. 12265 * This is more of an informative/diagnostic error. 12266 */ 12267#if 0 12268 printf("ctl_abort_task: ABORT sent for nonexistent I/O: " 12269 "%u:%u:%u tag %d type %d\n", 12270 io->io_hdr.nexus.initid, 12271 io->io_hdr.nexus.targ_port, 12272 io->io_hdr.nexus.targ_lun, io->taskio.tag_num, 12273 io->taskio.tag_type); 12274#endif 12275 } 12276 io->taskio.task_status = CTL_TASK_FUNCTION_COMPLETE; 12277 return (0); 12278} 12279 12280static int 12281ctl_query_task(union ctl_io *io, int task_set) 12282{ 12283 union ctl_io *xio; 12284 struct ctl_lun *lun; 12285 struct ctl_softc *softc; 12286 int found = 0; 12287 uint32_t targ_lun; 12288 12289 softc = control_softc; 12290 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12291 mtx_lock(&softc->ctl_lock); 12292 if ((targ_lun >= CTL_MAX_LUNS) || 12293 (lun = softc->ctl_luns[targ_lun]) == NULL) { 12294 mtx_unlock(&softc->ctl_lock); 12295 io->taskio.task_status = CTL_TASK_LUN_DOES_NOT_EXIST; 12296 return (1); 12297 } 12298 mtx_lock(&lun->lun_lock); 12299 mtx_unlock(&softc->ctl_lock); 12300 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 12301 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 12302 12303 if ((xio->io_hdr.nexus.targ_port != io->io_hdr.nexus.targ_port) 12304 || (xio->io_hdr.nexus.initid != io->io_hdr.nexus.initid) 12305 || (xio->io_hdr.flags & CTL_FLAG_ABORT)) 12306 continue; 12307 12308 if (task_set || xio->scsiio.tag_num == io->taskio.tag_num) { 12309 found = 1; 12310 break; 12311 } 12312 } 12313 mtx_unlock(&lun->lun_lock); 12314 if (found) 12315 io->taskio.task_status = CTL_TASK_FUNCTION_SUCCEEDED; 12316 else 12317 io->taskio.task_status = CTL_TASK_FUNCTION_COMPLETE; 12318 return (0); 12319} 12320 12321static int 12322ctl_query_async_event(union ctl_io *io) 12323{ 12324 struct ctl_lun *lun; 12325 struct ctl_softc *softc; 12326 ctl_ua_type ua; 12327 uint32_t targ_lun, initidx; 12328 12329 softc = control_softc; 12330 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12331 mtx_lock(&softc->ctl_lock); 12332 if ((targ_lun >= CTL_MAX_LUNS) || 12333 (lun = softc->ctl_luns[targ_lun]) == NULL) { 12334 mtx_unlock(&softc->ctl_lock); 12335 io->taskio.task_status = CTL_TASK_LUN_DOES_NOT_EXIST; 12336 return (1); 12337 } 12338 mtx_lock(&lun->lun_lock); 12339 mtx_unlock(&softc->ctl_lock); 12340 initidx = ctl_get_initindex(&io->io_hdr.nexus); 12341 ua = ctl_build_qae(lun, initidx, io->taskio.task_resp); 12342 mtx_unlock(&lun->lun_lock); 12343 if (ua != CTL_UA_NONE) 12344 io->taskio.task_status = CTL_TASK_FUNCTION_SUCCEEDED; 12345 else 12346 io->taskio.task_status = CTL_TASK_FUNCTION_COMPLETE; 12347 return (0); 12348} 12349 12350static void 12351ctl_run_task(union ctl_io *io) 12352{ 12353 struct ctl_softc *softc = control_softc; 12354 int retval = 1; 12355 12356 CTL_DEBUG_PRINT(("ctl_run_task\n")); 12357 KASSERT(io->io_hdr.io_type == CTL_IO_TASK, 12358 ("ctl_run_task: Unextected io_type %d\n", io->io_hdr.io_type)); 12359 io->taskio.task_status = CTL_TASK_FUNCTION_NOT_SUPPORTED; 12360 bzero(io->taskio.task_resp, sizeof(io->taskio.task_resp)); 12361 switch (io->taskio.task_action) { 12362 case CTL_TASK_ABORT_TASK: 12363 retval = ctl_abort_task(io); 12364 break; 12365 case CTL_TASK_ABORT_TASK_SET: 12366 case CTL_TASK_CLEAR_TASK_SET: 12367 retval = ctl_abort_task_set(io); 12368 break; 12369 case CTL_TASK_CLEAR_ACA: 12370 break; 12371 case CTL_TASK_I_T_NEXUS_RESET: 12372 retval = ctl_i_t_nexus_reset(io); 12373 break; 12374 case CTL_TASK_LUN_RESET: 12375 retval = ctl_lun_reset(softc, io); 12376 break; 12377 case CTL_TASK_TARGET_RESET: 12378 retval = ctl_target_reset(softc, io, CTL_UA_TARG_RESET); 12379 break; 12380 case CTL_TASK_BUS_RESET: 12381 retval = ctl_bus_reset(softc, io); 12382 break; 12383 case CTL_TASK_PORT_LOGIN: 12384 break; 12385 case CTL_TASK_PORT_LOGOUT: 12386 break; 12387 case CTL_TASK_QUERY_TASK: 12388 retval = ctl_query_task(io, 0); 12389 break; 12390 case CTL_TASK_QUERY_TASK_SET: 12391 retval = ctl_query_task(io, 1); 12392 break; 12393 case CTL_TASK_QUERY_ASYNC_EVENT: 12394 retval = ctl_query_async_event(io); 12395 break; 12396 default: 12397 printf("%s: got unknown task management event %d\n", 12398 __func__, io->taskio.task_action); 12399 break; 12400 } 12401 if (retval == 0) 12402 io->io_hdr.status = CTL_SUCCESS; 12403 else 12404 io->io_hdr.status = CTL_ERROR; 12405 ctl_done(io); 12406} 12407 12408/* 12409 * For HA operation. Handle commands that come in from the other 12410 * controller. 12411 */ 12412static void 12413ctl_handle_isc(union ctl_io *io) 12414{ 12415 int free_io; 12416 struct ctl_lun *lun; 12417 struct ctl_softc *softc = control_softc; 12418 uint32_t targ_lun; 12419 12420 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12421 lun = softc->ctl_luns[targ_lun]; 12422 12423 switch (io->io_hdr.msg_type) { 12424 case CTL_MSG_SERIALIZE: 12425 free_io = ctl_serialize_other_sc_cmd(&io->scsiio); 12426 break; 12427 case CTL_MSG_R2R: { 12428 const struct ctl_cmd_entry *entry; 12429 12430 /* 12431 * This is only used in SER_ONLY mode. 12432 */ 12433 free_io = 0; 12434 entry = ctl_get_cmd_entry(&io->scsiio, NULL); 12435 mtx_lock(&lun->lun_lock); 12436 if (ctl_scsiio_lun_check(lun, 12437 entry, (struct ctl_scsiio *)io) != 0) { 12438 mtx_unlock(&lun->lun_lock); 12439 ctl_done(io); 12440 break; 12441 } 12442 io->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 12443 mtx_unlock(&lun->lun_lock); 12444 ctl_enqueue_rtr(io); 12445 break; 12446 } 12447 case CTL_MSG_FINISH_IO: 12448 if (softc->ha_mode == CTL_HA_MODE_XFER) { 12449 free_io = 0; 12450 ctl_done(io); 12451 } else { 12452 free_io = 1; 12453 mtx_lock(&lun->lun_lock); 12454 TAILQ_REMOVE(&lun->ooa_queue, &io->io_hdr, 12455 ooa_links); 12456 ctl_check_blocked(lun); 12457 mtx_unlock(&lun->lun_lock); 12458 } 12459 break; 12460 case CTL_MSG_PERS_ACTION: 12461 ctl_hndl_per_res_out_on_other_sc( 12462 (union ctl_ha_msg *)&io->presio.pr_msg); 12463 free_io = 1; 12464 break; 12465 case CTL_MSG_BAD_JUJU: 12466 free_io = 0; 12467 ctl_done(io); 12468 break; 12469 case CTL_MSG_DATAMOVE: 12470 /* Only used in XFER mode */ 12471 free_io = 0; 12472 ctl_datamove_remote(io); 12473 break; 12474 case CTL_MSG_DATAMOVE_DONE: 12475 /* Only used in XFER mode */ 12476 free_io = 0; 12477 io->scsiio.be_move_done(io); 12478 break; 12479 case CTL_MSG_FAILOVER: 12480 ctl_failover_lun(io); 12481 free_io = 1; 12482 break; 12483 default: 12484 free_io = 1; 12485 printf("%s: Invalid message type %d\n", 12486 __func__, io->io_hdr.msg_type); 12487 break; 12488 } 12489 if (free_io) 12490 ctl_free_io(io); 12491 12492} 12493 12494 12495/* 12496 * Returns the match type in the case of a match, or CTL_LUN_PAT_NONE if 12497 * there is no match. 12498 */ 12499static ctl_lun_error_pattern 12500ctl_cmd_pattern_match(struct ctl_scsiio *ctsio, struct ctl_error_desc *desc) 12501{ 12502 const struct ctl_cmd_entry *entry; 12503 ctl_lun_error_pattern filtered_pattern, pattern; 12504 12505 pattern = desc->error_pattern; 12506 12507 /* 12508 * XXX KDM we need more data passed into this function to match a 12509 * custom pattern, and we actually need to implement custom pattern 12510 * matching. 12511 */ 12512 if (pattern & CTL_LUN_PAT_CMD) 12513 return (CTL_LUN_PAT_CMD); 12514 12515 if ((pattern & CTL_LUN_PAT_MASK) == CTL_LUN_PAT_ANY) 12516 return (CTL_LUN_PAT_ANY); 12517 12518 entry = ctl_get_cmd_entry(ctsio, NULL); 12519 12520 filtered_pattern = entry->pattern & pattern; 12521 12522 /* 12523 * If the user requested specific flags in the pattern (e.g. 12524 * CTL_LUN_PAT_RANGE), make sure the command supports all of those 12525 * flags. 12526 * 12527 * If the user did not specify any flags, it doesn't matter whether 12528 * or not the command supports the flags. 12529 */ 12530 if ((filtered_pattern & ~CTL_LUN_PAT_MASK) != 12531 (pattern & ~CTL_LUN_PAT_MASK)) 12532 return (CTL_LUN_PAT_NONE); 12533 12534 /* 12535 * If the user asked for a range check, see if the requested LBA 12536 * range overlaps with this command's LBA range. 12537 */ 12538 if (filtered_pattern & CTL_LUN_PAT_RANGE) { 12539 uint64_t lba1; 12540 uint64_t len1; 12541 ctl_action action; 12542 int retval; 12543 12544 retval = ctl_get_lba_len((union ctl_io *)ctsio, &lba1, &len1); 12545 if (retval != 0) 12546 return (CTL_LUN_PAT_NONE); 12547 12548 action = ctl_extent_check_lba(lba1, len1, desc->lba_range.lba, 12549 desc->lba_range.len, FALSE); 12550 /* 12551 * A "pass" means that the LBA ranges don't overlap, so 12552 * this doesn't match the user's range criteria. 12553 */ 12554 if (action == CTL_ACTION_PASS) 12555 return (CTL_LUN_PAT_NONE); 12556 } 12557 12558 return (filtered_pattern); 12559} 12560 12561static void 12562ctl_inject_error(struct ctl_lun *lun, union ctl_io *io) 12563{ 12564 struct ctl_error_desc *desc, *desc2; 12565 12566 mtx_assert(&lun->lun_lock, MA_OWNED); 12567 12568 STAILQ_FOREACH_SAFE(desc, &lun->error_list, links, desc2) { 12569 ctl_lun_error_pattern pattern; 12570 /* 12571 * Check to see whether this particular command matches 12572 * the pattern in the descriptor. 12573 */ 12574 pattern = ctl_cmd_pattern_match(&io->scsiio, desc); 12575 if ((pattern & CTL_LUN_PAT_MASK) == CTL_LUN_PAT_NONE) 12576 continue; 12577 12578 switch (desc->lun_error & CTL_LUN_INJ_TYPE) { 12579 case CTL_LUN_INJ_ABORTED: 12580 ctl_set_aborted(&io->scsiio); 12581 break; 12582 case CTL_LUN_INJ_MEDIUM_ERR: 12583 ctl_set_medium_error(&io->scsiio, 12584 (io->io_hdr.flags & CTL_FLAG_DATA_MASK) != 12585 CTL_FLAG_DATA_OUT); 12586 break; 12587 case CTL_LUN_INJ_UA: 12588 /* 29h/00h POWER ON, RESET, OR BUS DEVICE RESET 12589 * OCCURRED */ 12590 ctl_set_ua(&io->scsiio, 0x29, 0x00); 12591 break; 12592 case CTL_LUN_INJ_CUSTOM: 12593 /* 12594 * We're assuming the user knows what he is doing. 12595 * Just copy the sense information without doing 12596 * checks. 12597 */ 12598 bcopy(&desc->custom_sense, &io->scsiio.sense_data, 12599 MIN(sizeof(desc->custom_sense), 12600 sizeof(io->scsiio.sense_data))); 12601 io->scsiio.scsi_status = SCSI_STATUS_CHECK_COND; 12602 io->scsiio.sense_len = SSD_FULL_SIZE; 12603 io->io_hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 12604 break; 12605 case CTL_LUN_INJ_NONE: 12606 default: 12607 /* 12608 * If this is an error injection type we don't know 12609 * about, clear the continuous flag (if it is set) 12610 * so it will get deleted below. 12611 */ 12612 desc->lun_error &= ~CTL_LUN_INJ_CONTINUOUS; 12613 break; 12614 } 12615 /* 12616 * By default, each error injection action is a one-shot 12617 */ 12618 if (desc->lun_error & CTL_LUN_INJ_CONTINUOUS) 12619 continue; 12620 12621 STAILQ_REMOVE(&lun->error_list, desc, ctl_error_desc, links); 12622 12623 free(desc, M_CTL); 12624 } 12625} 12626 12627#ifdef CTL_IO_DELAY 12628static void 12629ctl_datamove_timer_wakeup(void *arg) 12630{ 12631 union ctl_io *io; 12632 12633 io = (union ctl_io *)arg; 12634 12635 ctl_datamove(io); 12636} 12637#endif /* CTL_IO_DELAY */ 12638 12639void 12640ctl_datamove(union ctl_io *io) 12641{ 12642 struct ctl_lun *lun; 12643 void (*fe_datamove)(union ctl_io *io); 12644 12645 mtx_assert(&control_softc->ctl_lock, MA_NOTOWNED); 12646 12647 CTL_DEBUG_PRINT(("ctl_datamove\n")); 12648 12649 lun = (struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 12650#ifdef CTL_TIME_IO 12651 if ((time_uptime - io->io_hdr.start_time) > ctl_time_io_secs) { 12652 char str[256]; 12653 char path_str[64]; 12654 struct sbuf sb; 12655 12656 ctl_scsi_path_string(io, path_str, sizeof(path_str)); 12657 sbuf_new(&sb, str, sizeof(str), SBUF_FIXEDLEN); 12658 12659 sbuf_cat(&sb, path_str); 12660 switch (io->io_hdr.io_type) { 12661 case CTL_IO_SCSI: 12662 ctl_scsi_command_string(&io->scsiio, NULL, &sb); 12663 sbuf_printf(&sb, "\n"); 12664 sbuf_cat(&sb, path_str); 12665 sbuf_printf(&sb, "Tag: 0x%04x, type %d\n", 12666 io->scsiio.tag_num, io->scsiio.tag_type); 12667 break; 12668 case CTL_IO_TASK: 12669 sbuf_printf(&sb, "Task I/O type: %d, Tag: 0x%04x, " 12670 "Tag Type: %d\n", io->taskio.task_action, 12671 io->taskio.tag_num, io->taskio.tag_type); 12672 break; 12673 default: 12674 panic("%s: Invalid CTL I/O type %d\n", 12675 __func__, io->io_hdr.io_type); 12676 } 12677 sbuf_cat(&sb, path_str); 12678 sbuf_printf(&sb, "ctl_datamove: %jd seconds\n", 12679 (intmax_t)time_uptime - io->io_hdr.start_time); 12680 sbuf_finish(&sb); 12681 printf("%s", sbuf_data(&sb)); 12682 } 12683#endif /* CTL_TIME_IO */ 12684 12685#ifdef CTL_IO_DELAY 12686 if (io->io_hdr.flags & CTL_FLAG_DELAY_DONE) { 12687 io->io_hdr.flags &= ~CTL_FLAG_DELAY_DONE; 12688 } else { 12689 if ((lun != NULL) 12690 && (lun->delay_info.datamove_delay > 0)) { 12691 12692 callout_init(&io->io_hdr.delay_callout, /*mpsafe*/ 1); 12693 io->io_hdr.flags |= CTL_FLAG_DELAY_DONE; 12694 callout_reset(&io->io_hdr.delay_callout, 12695 lun->delay_info.datamove_delay * hz, 12696 ctl_datamove_timer_wakeup, io); 12697 if (lun->delay_info.datamove_type == 12698 CTL_DELAY_TYPE_ONESHOT) 12699 lun->delay_info.datamove_delay = 0; 12700 return; 12701 } 12702 } 12703#endif 12704 12705 /* 12706 * This command has been aborted. Set the port status, so we fail 12707 * the data move. 12708 */ 12709 if (io->io_hdr.flags & CTL_FLAG_ABORT) { 12710 printf("ctl_datamove: tag 0x%04x on (%u:%u:%u) aborted\n", 12711 io->scsiio.tag_num, io->io_hdr.nexus.initid, 12712 io->io_hdr.nexus.targ_port, 12713 io->io_hdr.nexus.targ_lun); 12714 io->io_hdr.port_status = 31337; 12715 /* 12716 * Note that the backend, in this case, will get the 12717 * callback in its context. In other cases it may get 12718 * called in the frontend's interrupt thread context. 12719 */ 12720 io->scsiio.be_move_done(io); 12721 return; 12722 } 12723 12724 /* Don't confuse frontend with zero length data move. */ 12725 if (io->scsiio.kern_data_len == 0) { 12726 io->scsiio.be_move_done(io); 12727 return; 12728 } 12729 12730 fe_datamove = ctl_io_port(&io->io_hdr)->fe_datamove; 12731 fe_datamove(io); 12732} 12733 12734static void 12735ctl_send_datamove_done(union ctl_io *io, int have_lock) 12736{ 12737 union ctl_ha_msg msg; 12738#ifdef CTL_TIME_IO 12739 struct bintime cur_bt; 12740#endif 12741 12742 memset(&msg, 0, sizeof(msg)); 12743 msg.hdr.msg_type = CTL_MSG_DATAMOVE_DONE; 12744 msg.hdr.original_sc = io; 12745 msg.hdr.serializing_sc = io->io_hdr.serializing_sc; 12746 msg.hdr.nexus = io->io_hdr.nexus; 12747 msg.hdr.status = io->io_hdr.status; 12748 msg.scsi.tag_num = io->scsiio.tag_num; 12749 msg.scsi.tag_type = io->scsiio.tag_type; 12750 msg.scsi.scsi_status = io->scsiio.scsi_status; 12751 memcpy(&msg.scsi.sense_data, &io->scsiio.sense_data, 12752 io->scsiio.sense_len); 12753 msg.scsi.sense_len = io->scsiio.sense_len; 12754 msg.scsi.sense_residual = io->scsiio.sense_residual; 12755 msg.scsi.fetd_status = io->io_hdr.port_status; 12756 msg.scsi.residual = io->scsiio.residual; 12757 io->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 12758 if (io->io_hdr.flags & CTL_FLAG_FAILOVER) { 12759 ctl_failover_io(io, /*have_lock*/ have_lock); 12760 return; 12761 } 12762 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, 12763 sizeof(msg.scsi) - sizeof(msg.scsi.sense_data) + 12764 msg.scsi.sense_len, M_WAITOK); 12765 12766#ifdef CTL_TIME_IO 12767 getbinuptime(&cur_bt); 12768 bintime_sub(&cur_bt, &io->io_hdr.dma_start_bt); 12769 bintime_add(&io->io_hdr.dma_bt, &cur_bt); 12770#endif 12771 io->io_hdr.num_dmas++; 12772} 12773 12774/* 12775 * The DMA to the remote side is done, now we need to tell the other side 12776 * we're done so it can continue with its data movement. 12777 */ 12778static void 12779ctl_datamove_remote_write_cb(struct ctl_ha_dt_req *rq) 12780{ 12781 union ctl_io *io; 12782 uint32_t i; 12783 12784 io = rq->context; 12785 12786 if (rq->ret != CTL_HA_STATUS_SUCCESS) { 12787 printf("%s: ISC DMA write failed with error %d", __func__, 12788 rq->ret); 12789 ctl_set_internal_failure(&io->scsiio, 12790 /*sks_valid*/ 1, 12791 /*retry_count*/ rq->ret); 12792 } 12793 12794 ctl_dt_req_free(rq); 12795 12796 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 12797 free(io->io_hdr.local_sglist[i].addr, M_CTL); 12798 free(io->io_hdr.remote_sglist, M_CTL); 12799 io->io_hdr.remote_sglist = NULL; 12800 io->io_hdr.local_sglist = NULL; 12801 12802 /* 12803 * The data is in local and remote memory, so now we need to send 12804 * status (good or back) back to the other side. 12805 */ 12806 ctl_send_datamove_done(io, /*have_lock*/ 0); 12807} 12808 12809/* 12810 * We've moved the data from the host/controller into local memory. Now we 12811 * need to push it over to the remote controller's memory. 12812 */ 12813static int 12814ctl_datamove_remote_dm_write_cb(union ctl_io *io) 12815{ 12816 int retval; 12817 12818 retval = ctl_datamove_remote_xfer(io, CTL_HA_DT_CMD_WRITE, 12819 ctl_datamove_remote_write_cb); 12820 return (retval); 12821} 12822 12823static void 12824ctl_datamove_remote_write(union ctl_io *io) 12825{ 12826 int retval; 12827 void (*fe_datamove)(union ctl_io *io); 12828 12829 /* 12830 * - Get the data from the host/HBA into local memory. 12831 * - DMA memory from the local controller to the remote controller. 12832 * - Send status back to the remote controller. 12833 */ 12834 12835 retval = ctl_datamove_remote_sgl_setup(io); 12836 if (retval != 0) 12837 return; 12838 12839 /* Switch the pointer over so the FETD knows what to do */ 12840 io->scsiio.kern_data_ptr = (uint8_t *)io->io_hdr.local_sglist; 12841 12842 /* 12843 * Use a custom move done callback, since we need to send completion 12844 * back to the other controller, not to the backend on this side. 12845 */ 12846 io->scsiio.be_move_done = ctl_datamove_remote_dm_write_cb; 12847 12848 fe_datamove = ctl_io_port(&io->io_hdr)->fe_datamove; 12849 fe_datamove(io); 12850} 12851 12852static int 12853ctl_datamove_remote_dm_read_cb(union ctl_io *io) 12854{ 12855#if 0 12856 char str[256]; 12857 char path_str[64]; 12858 struct sbuf sb; 12859#endif 12860 uint32_t i; 12861 12862 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 12863 free(io->io_hdr.local_sglist[i].addr, M_CTL); 12864 free(io->io_hdr.remote_sglist, M_CTL); 12865 io->io_hdr.remote_sglist = NULL; 12866 io->io_hdr.local_sglist = NULL; 12867 12868#if 0 12869 scsi_path_string(io, path_str, sizeof(path_str)); 12870 sbuf_new(&sb, str, sizeof(str), SBUF_FIXEDLEN); 12871 sbuf_cat(&sb, path_str); 12872 scsi_command_string(&io->scsiio, NULL, &sb); 12873 sbuf_printf(&sb, "\n"); 12874 sbuf_cat(&sb, path_str); 12875 sbuf_printf(&sb, "Tag: 0x%04x, type %d\n", 12876 io->scsiio.tag_num, io->scsiio.tag_type); 12877 sbuf_cat(&sb, path_str); 12878 sbuf_printf(&sb, "%s: flags %#x, status %#x\n", __func__, 12879 io->io_hdr.flags, io->io_hdr.status); 12880 sbuf_finish(&sb); 12881 printk("%s", sbuf_data(&sb)); 12882#endif 12883 12884 12885 /* 12886 * The read is done, now we need to send status (good or bad) back 12887 * to the other side. 12888 */ 12889 ctl_send_datamove_done(io, /*have_lock*/ 0); 12890 12891 return (0); 12892} 12893 12894static void 12895ctl_datamove_remote_read_cb(struct ctl_ha_dt_req *rq) 12896{ 12897 union ctl_io *io; 12898 void (*fe_datamove)(union ctl_io *io); 12899 12900 io = rq->context; 12901 12902 if (rq->ret != CTL_HA_STATUS_SUCCESS) { 12903 printf("%s: ISC DMA read failed with error %d\n", __func__, 12904 rq->ret); 12905 ctl_set_internal_failure(&io->scsiio, 12906 /*sks_valid*/ 1, 12907 /*retry_count*/ rq->ret); 12908 } 12909 12910 ctl_dt_req_free(rq); 12911 12912 /* Switch the pointer over so the FETD knows what to do */ 12913 io->scsiio.kern_data_ptr = (uint8_t *)io->io_hdr.local_sglist; 12914 12915 /* 12916 * Use a custom move done callback, since we need to send completion 12917 * back to the other controller, not to the backend on this side. 12918 */ 12919 io->scsiio.be_move_done = ctl_datamove_remote_dm_read_cb; 12920 12921 /* XXX KDM add checks like the ones in ctl_datamove? */ 12922 12923 fe_datamove = ctl_io_port(&io->io_hdr)->fe_datamove; 12924 fe_datamove(io); 12925} 12926 12927static int 12928ctl_datamove_remote_sgl_setup(union ctl_io *io) 12929{ 12930 struct ctl_sg_entry *local_sglist; 12931 uint32_t len_to_go; 12932 int retval; 12933 int i; 12934 12935 retval = 0; 12936 local_sglist = io->io_hdr.local_sglist; 12937 len_to_go = io->scsiio.kern_data_len; 12938 12939 /* 12940 * The difficult thing here is that the size of the various 12941 * S/G segments may be different than the size from the 12942 * remote controller. That'll make it harder when DMAing 12943 * the data back to the other side. 12944 */ 12945 for (i = 0; len_to_go > 0; i++) { 12946 local_sglist[i].len = MIN(len_to_go, CTL_HA_DATAMOVE_SEGMENT); 12947 local_sglist[i].addr = 12948 malloc(local_sglist[i].len, M_CTL, M_WAITOK); 12949 12950 len_to_go -= local_sglist[i].len; 12951 } 12952 /* 12953 * Reset the number of S/G entries accordingly. The original 12954 * number of S/G entries is available in rem_sg_entries. 12955 */ 12956 io->scsiio.kern_sg_entries = i; 12957 12958#if 0 12959 printf("%s: kern_sg_entries = %d\n", __func__, 12960 io->scsiio.kern_sg_entries); 12961 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 12962 printf("%s: sg[%d] = %p, %lu\n", __func__, i, 12963 local_sglist[i].addr, local_sglist[i].len); 12964#endif 12965 12966 return (retval); 12967} 12968 12969static int 12970ctl_datamove_remote_xfer(union ctl_io *io, unsigned command, 12971 ctl_ha_dt_cb callback) 12972{ 12973 struct ctl_ha_dt_req *rq; 12974 struct ctl_sg_entry *remote_sglist, *local_sglist; 12975 uint32_t local_used, remote_used, total_used; 12976 int i, j, isc_ret; 12977 12978 rq = ctl_dt_req_alloc(); 12979 12980 /* 12981 * If we failed to allocate the request, and if the DMA didn't fail 12982 * anyway, set busy status. This is just a resource allocation 12983 * failure. 12984 */ 12985 if ((rq == NULL) 12986 && ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE && 12987 (io->io_hdr.status & CTL_STATUS_MASK) != CTL_SUCCESS)) 12988 ctl_set_busy(&io->scsiio); 12989 12990 if ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE && 12991 (io->io_hdr.status & CTL_STATUS_MASK) != CTL_SUCCESS) { 12992 12993 if (rq != NULL) 12994 ctl_dt_req_free(rq); 12995 12996 /* 12997 * The data move failed. We need to return status back 12998 * to the other controller. No point in trying to DMA 12999 * data to the remote controller. 13000 */ 13001 13002 ctl_send_datamove_done(io, /*have_lock*/ 0); 13003 13004 return (1); 13005 } 13006 13007 local_sglist = io->io_hdr.local_sglist; 13008 remote_sglist = io->io_hdr.remote_sglist; 13009 local_used = 0; 13010 remote_used = 0; 13011 total_used = 0; 13012 13013 /* 13014 * Pull/push the data over the wire from/to the other controller. 13015 * This takes into account the possibility that the local and 13016 * remote sglists may not be identical in terms of the size of 13017 * the elements and the number of elements. 13018 * 13019 * One fundamental assumption here is that the length allocated for 13020 * both the local and remote sglists is identical. Otherwise, we've 13021 * essentially got a coding error of some sort. 13022 */ 13023 isc_ret = CTL_HA_STATUS_SUCCESS; 13024 for (i = 0, j = 0; total_used < io->scsiio.kern_data_len; ) { 13025 uint32_t cur_len; 13026 uint8_t *tmp_ptr; 13027 13028 rq->command = command; 13029 rq->context = io; 13030 13031 /* 13032 * Both pointers should be aligned. But it is possible 13033 * that the allocation length is not. They should both 13034 * also have enough slack left over at the end, though, 13035 * to round up to the next 8 byte boundary. 13036 */ 13037 cur_len = MIN(local_sglist[i].len - local_used, 13038 remote_sglist[j].len - remote_used); 13039 rq->size = cur_len; 13040 13041 tmp_ptr = (uint8_t *)local_sglist[i].addr; 13042 tmp_ptr += local_used; 13043 13044#if 0 13045 /* Use physical addresses when talking to ISC hardware */ 13046 if ((io->io_hdr.flags & CTL_FLAG_BUS_ADDR) == 0) { 13047 /* XXX KDM use busdma */ 13048 rq->local = vtophys(tmp_ptr); 13049 } else 13050 rq->local = tmp_ptr; 13051#else 13052 KASSERT((io->io_hdr.flags & CTL_FLAG_BUS_ADDR) == 0, 13053 ("HA does not support BUS_ADDR")); 13054 rq->local = tmp_ptr; 13055#endif 13056 13057 tmp_ptr = (uint8_t *)remote_sglist[j].addr; 13058 tmp_ptr += remote_used; 13059 rq->remote = tmp_ptr; 13060 13061 rq->callback = NULL; 13062 13063 local_used += cur_len; 13064 if (local_used >= local_sglist[i].len) { 13065 i++; 13066 local_used = 0; 13067 } 13068 13069 remote_used += cur_len; 13070 if (remote_used >= remote_sglist[j].len) { 13071 j++; 13072 remote_used = 0; 13073 } 13074 total_used += cur_len; 13075 13076 if (total_used >= io->scsiio.kern_data_len) 13077 rq->callback = callback; 13078 13079#if 0 13080 printf("%s: %s: local %p remote %p size %d\n", __func__, 13081 (command == CTL_HA_DT_CMD_WRITE) ? "WRITE" : "READ", 13082 rq->local, rq->remote, rq->size); 13083#endif 13084 13085 isc_ret = ctl_dt_single(rq); 13086 if (isc_ret > CTL_HA_STATUS_SUCCESS) 13087 break; 13088 } 13089 if (isc_ret != CTL_HA_STATUS_WAIT) { 13090 rq->ret = isc_ret; 13091 callback(rq); 13092 } 13093 13094 return (0); 13095} 13096 13097static void 13098ctl_datamove_remote_read(union ctl_io *io) 13099{ 13100 int retval; 13101 uint32_t i; 13102 13103 /* 13104 * This will send an error to the other controller in the case of a 13105 * failure. 13106 */ 13107 retval = ctl_datamove_remote_sgl_setup(io); 13108 if (retval != 0) 13109 return; 13110 13111 retval = ctl_datamove_remote_xfer(io, CTL_HA_DT_CMD_READ, 13112 ctl_datamove_remote_read_cb); 13113 if (retval != 0) { 13114 /* 13115 * Make sure we free memory if there was an error.. The 13116 * ctl_datamove_remote_xfer() function will send the 13117 * datamove done message, or call the callback with an 13118 * error if there is a problem. 13119 */ 13120 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 13121 free(io->io_hdr.local_sglist[i].addr, M_CTL); 13122 free(io->io_hdr.remote_sglist, M_CTL); 13123 io->io_hdr.remote_sglist = NULL; 13124 io->io_hdr.local_sglist = NULL; 13125 } 13126} 13127 13128/* 13129 * Process a datamove request from the other controller. This is used for 13130 * XFER mode only, not SER_ONLY mode. For writes, we DMA into local memory 13131 * first. Once that is complete, the data gets DMAed into the remote 13132 * controller's memory. For reads, we DMA from the remote controller's 13133 * memory into our memory first, and then move it out to the FETD. 13134 */ 13135static void 13136ctl_datamove_remote(union ctl_io *io) 13137{ 13138 13139 mtx_assert(&control_softc->ctl_lock, MA_NOTOWNED); 13140 13141 if (io->io_hdr.flags & CTL_FLAG_FAILOVER) { 13142 ctl_failover_io(io, /*have_lock*/ 0); 13143 return; 13144 } 13145 13146 /* 13147 * Note that we look for an aborted I/O here, but don't do some of 13148 * the other checks that ctl_datamove() normally does. 13149 * We don't need to run the datamove delay code, since that should 13150 * have been done if need be on the other controller. 13151 */ 13152 if (io->io_hdr.flags & CTL_FLAG_ABORT) { 13153 printf("%s: tag 0x%04x on (%u:%u:%u) aborted\n", __func__, 13154 io->scsiio.tag_num, io->io_hdr.nexus.initid, 13155 io->io_hdr.nexus.targ_port, 13156 io->io_hdr.nexus.targ_lun); 13157 io->io_hdr.port_status = 31338; 13158 ctl_send_datamove_done(io, /*have_lock*/ 0); 13159 return; 13160 } 13161 13162 if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_OUT) 13163 ctl_datamove_remote_write(io); 13164 else if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_IN) 13165 ctl_datamove_remote_read(io); 13166 else { 13167 io->io_hdr.port_status = 31339; 13168 ctl_send_datamove_done(io, /*have_lock*/ 0); 13169 } 13170} 13171 13172static void 13173ctl_process_done(union ctl_io *io) 13174{ 13175 struct ctl_lun *lun; 13176 struct ctl_softc *softc = control_softc; 13177 void (*fe_done)(union ctl_io *io); 13178 union ctl_ha_msg msg; 13179 uint32_t targ_port = io->io_hdr.nexus.targ_port; 13180 13181 CTL_DEBUG_PRINT(("ctl_process_done\n")); 13182 fe_done = softc->ctl_ports[targ_port]->fe_done; 13183 13184#ifdef CTL_TIME_IO 13185 if ((time_uptime - io->io_hdr.start_time) > ctl_time_io_secs) { 13186 char str[256]; 13187 char path_str[64]; 13188 struct sbuf sb; 13189 13190 ctl_scsi_path_string(io, path_str, sizeof(path_str)); 13191 sbuf_new(&sb, str, sizeof(str), SBUF_FIXEDLEN); 13192 13193 sbuf_cat(&sb, path_str); 13194 switch (io->io_hdr.io_type) { 13195 case CTL_IO_SCSI: 13196 ctl_scsi_command_string(&io->scsiio, NULL, &sb); 13197 sbuf_printf(&sb, "\n"); 13198 sbuf_cat(&sb, path_str); 13199 sbuf_printf(&sb, "Tag: 0x%04x, type %d\n", 13200 io->scsiio.tag_num, io->scsiio.tag_type); 13201 break; 13202 case CTL_IO_TASK: 13203 sbuf_printf(&sb, "Task I/O type: %d, Tag: 0x%04x, " 13204 "Tag Type: %d\n", io->taskio.task_action, 13205 io->taskio.tag_num, io->taskio.tag_type); 13206 break; 13207 default: 13208 panic("%s: Invalid CTL I/O type %d\n", 13209 __func__, io->io_hdr.io_type); 13210 } 13211 sbuf_cat(&sb, path_str); 13212 sbuf_printf(&sb, "ctl_process_done: %jd seconds\n", 13213 (intmax_t)time_uptime - io->io_hdr.start_time); 13214 sbuf_finish(&sb); 13215 printf("%s", sbuf_data(&sb)); 13216 } 13217#endif /* CTL_TIME_IO */ 13218 13219 switch (io->io_hdr.io_type) { 13220 case CTL_IO_SCSI: 13221 break; 13222 case CTL_IO_TASK: 13223 if (ctl_debug & CTL_DEBUG_INFO) 13224 ctl_io_error_print(io, NULL); 13225 fe_done(io); 13226 return; 13227 default: 13228 panic("%s: Invalid CTL I/O type %d\n", 13229 __func__, io->io_hdr.io_type); 13230 } 13231 13232 lun = (struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 13233 if (lun == NULL) { 13234 CTL_DEBUG_PRINT(("NULL LUN for lun %d\n", 13235 io->io_hdr.nexus.targ_mapped_lun)); 13236 goto bailout; 13237 } 13238 13239 mtx_lock(&lun->lun_lock); 13240 13241 /* 13242 * Check to see if we have any errors to inject here. We only 13243 * inject errors for commands that don't already have errors set. 13244 */ 13245 if (!STAILQ_EMPTY(&lun->error_list) && 13246 ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS) && 13247 ((io->io_hdr.flags & CTL_FLAG_STATUS_SENT) == 0)) 13248 ctl_inject_error(lun, io); 13249 13250 /* 13251 * XXX KDM how do we treat commands that aren't completed 13252 * successfully? 13253 * 13254 * XXX KDM should we also track I/O latency? 13255 */ 13256 if ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS && 13257 io->io_hdr.io_type == CTL_IO_SCSI) { 13258#ifdef CTL_TIME_IO 13259 struct bintime cur_bt; 13260#endif 13261 int type; 13262 13263 if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == 13264 CTL_FLAG_DATA_IN) 13265 type = CTL_STATS_READ; 13266 else if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == 13267 CTL_FLAG_DATA_OUT) 13268 type = CTL_STATS_WRITE; 13269 else 13270 type = CTL_STATS_NO_IO; 13271 13272 lun->stats.ports[targ_port].bytes[type] += 13273 io->scsiio.kern_total_len; 13274 lun->stats.ports[targ_port].operations[type]++; 13275#ifdef CTL_TIME_IO 13276 bintime_add(&lun->stats.ports[targ_port].dma_time[type], 13277 &io->io_hdr.dma_bt); 13278 getbinuptime(&cur_bt); 13279 bintime_sub(&cur_bt, &io->io_hdr.start_bt); 13280 bintime_add(&lun->stats.ports[targ_port].time[type], &cur_bt); 13281#endif 13282 lun->stats.ports[targ_port].num_dmas[type] += 13283 io->io_hdr.num_dmas; 13284 } 13285 13286 /* 13287 * Remove this from the OOA queue. 13288 */ 13289 TAILQ_REMOVE(&lun->ooa_queue, &io->io_hdr, ooa_links); 13290#ifdef CTL_TIME_IO 13291 if (TAILQ_EMPTY(&lun->ooa_queue)) 13292 lun->last_busy = getsbinuptime(); 13293#endif 13294 13295 /* 13296 * Run through the blocked queue on this LUN and see if anything 13297 * has become unblocked, now that this transaction is done. 13298 */ 13299 ctl_check_blocked(lun); 13300 13301 /* 13302 * If the LUN has been invalidated, free it if there is nothing 13303 * left on its OOA queue. 13304 */ 13305 if ((lun->flags & CTL_LUN_INVALID) 13306 && TAILQ_EMPTY(&lun->ooa_queue)) { 13307 mtx_unlock(&lun->lun_lock); 13308 mtx_lock(&softc->ctl_lock); 13309 ctl_free_lun(lun); 13310 mtx_unlock(&softc->ctl_lock); 13311 } else 13312 mtx_unlock(&lun->lun_lock); 13313 13314bailout: 13315 13316 /* 13317 * If this command has been aborted, make sure we set the status 13318 * properly. The FETD is responsible for freeing the I/O and doing 13319 * whatever it needs to do to clean up its state. 13320 */ 13321 if (io->io_hdr.flags & CTL_FLAG_ABORT) 13322 ctl_set_task_aborted(&io->scsiio); 13323 13324 /* 13325 * If enabled, print command error status. 13326 */ 13327 if ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_SUCCESS && 13328 (ctl_debug & CTL_DEBUG_INFO) != 0) 13329 ctl_io_error_print(io, NULL); 13330 13331 /* 13332 * Tell the FETD or the other shelf controller we're done with this 13333 * command. Note that only SCSI commands get to this point. Task 13334 * management commands are completed above. 13335 */ 13336 if ((softc->ha_mode != CTL_HA_MODE_XFER) && 13337 (io->io_hdr.flags & CTL_FLAG_SENT_2OTHER_SC)) { 13338 memset(&msg, 0, sizeof(msg)); 13339 msg.hdr.msg_type = CTL_MSG_FINISH_IO; 13340 msg.hdr.serializing_sc = io->io_hdr.serializing_sc; 13341 msg.hdr.nexus = io->io_hdr.nexus; 13342 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, 13343 sizeof(msg.scsi) - sizeof(msg.scsi.sense_data), 13344 M_WAITOK); 13345 } 13346 13347 fe_done(io); 13348} 13349 13350#ifdef CTL_WITH_CA 13351/* 13352 * Front end should call this if it doesn't do autosense. When the request 13353 * sense comes back in from the initiator, we'll dequeue this and send it. 13354 */ 13355int 13356ctl_queue_sense(union ctl_io *io) 13357{ 13358 struct ctl_lun *lun; 13359 struct ctl_port *port; 13360 struct ctl_softc *softc; 13361 uint32_t initidx, targ_lun; 13362 13363 softc = control_softc; 13364 13365 CTL_DEBUG_PRINT(("ctl_queue_sense\n")); 13366 13367 /* 13368 * LUN lookup will likely move to the ctl_work_thread() once we 13369 * have our new queueing infrastructure (that doesn't put things on 13370 * a per-LUN queue initially). That is so that we can handle 13371 * things like an INQUIRY to a LUN that we don't have enabled. We 13372 * can't deal with that right now. 13373 */ 13374 mtx_lock(&softc->ctl_lock); 13375 13376 /* 13377 * If we don't have a LUN for this, just toss the sense 13378 * information. 13379 */ 13380 port = ctl_io_port(&ctsio->io_hdr); 13381 targ_lun = ctl_lun_map_from_port(port, io->io_hdr.nexus.targ_lun); 13382 if ((targ_lun < CTL_MAX_LUNS) 13383 && (softc->ctl_luns[targ_lun] != NULL)) 13384 lun = softc->ctl_luns[targ_lun]; 13385 else 13386 goto bailout; 13387 13388 initidx = ctl_get_initindex(&io->io_hdr.nexus); 13389 13390 mtx_lock(&lun->lun_lock); 13391 /* 13392 * Already have CA set for this LUN...toss the sense information. 13393 */ 13394 if (ctl_is_set(lun->have_ca, initidx)) { 13395 mtx_unlock(&lun->lun_lock); 13396 goto bailout; 13397 } 13398 13399 memcpy(&lun->pending_sense[initidx], &io->scsiio.sense_data, 13400 MIN(sizeof(lun->pending_sense[initidx]), 13401 sizeof(io->scsiio.sense_data))); 13402 ctl_set_mask(lun->have_ca, initidx); 13403 mtx_unlock(&lun->lun_lock); 13404 13405bailout: 13406 mtx_unlock(&softc->ctl_lock); 13407 13408 ctl_free_io(io); 13409 13410 return (CTL_RETVAL_COMPLETE); 13411} 13412#endif 13413 13414/* 13415 * Primary command inlet from frontend ports. All SCSI and task I/O 13416 * requests must go through this function. 13417 */ 13418int 13419ctl_queue(union ctl_io *io) 13420{ 13421 struct ctl_port *port; 13422 13423 CTL_DEBUG_PRINT(("ctl_queue cdb[0]=%02X\n", io->scsiio.cdb[0])); 13424 13425#ifdef CTL_TIME_IO 13426 io->io_hdr.start_time = time_uptime; 13427 getbinuptime(&io->io_hdr.start_bt); 13428#endif /* CTL_TIME_IO */ 13429 13430 /* Map FE-specific LUN ID into global one. */ 13431 port = ctl_io_port(&io->io_hdr); 13432 io->io_hdr.nexus.targ_mapped_lun = 13433 ctl_lun_map_from_port(port, io->io_hdr.nexus.targ_lun); 13434 13435 switch (io->io_hdr.io_type) { 13436 case CTL_IO_SCSI: 13437 case CTL_IO_TASK: 13438 if (ctl_debug & CTL_DEBUG_CDB) 13439 ctl_io_print(io); 13440 ctl_enqueue_incoming(io); 13441 break; 13442 default: 13443 printf("ctl_queue: unknown I/O type %d\n", io->io_hdr.io_type); 13444 return (EINVAL); 13445 } 13446 13447 return (CTL_RETVAL_COMPLETE); 13448} 13449 13450#ifdef CTL_IO_DELAY 13451static void 13452ctl_done_timer_wakeup(void *arg) 13453{ 13454 union ctl_io *io; 13455 13456 io = (union ctl_io *)arg; 13457 ctl_done(io); 13458} 13459#endif /* CTL_IO_DELAY */ 13460 13461void 13462ctl_serseq_done(union ctl_io *io) 13463{ 13464 struct ctl_lun *lun; 13465 13466 lun = (struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 13467 if (lun->be_lun == NULL || 13468 lun->be_lun->serseq == CTL_LUN_SERSEQ_OFF) 13469 return; 13470 mtx_lock(&lun->lun_lock); 13471 io->io_hdr.flags |= CTL_FLAG_SERSEQ_DONE; 13472 ctl_check_blocked(lun); 13473 mtx_unlock(&lun->lun_lock); 13474} 13475 13476void 13477ctl_done(union ctl_io *io) 13478{ 13479 13480 /* 13481 * Enable this to catch duplicate completion issues. 13482 */ 13483#if 0 13484 if (io->io_hdr.flags & CTL_FLAG_ALREADY_DONE) { 13485 printf("%s: type %d msg %d cdb %x iptl: " 13486 "%u:%u:%u tag 0x%04x " 13487 "flag %#x status %x\n", 13488 __func__, 13489 io->io_hdr.io_type, 13490 io->io_hdr.msg_type, 13491 io->scsiio.cdb[0], 13492 io->io_hdr.nexus.initid, 13493 io->io_hdr.nexus.targ_port, 13494 io->io_hdr.nexus.targ_lun, 13495 (io->io_hdr.io_type == 13496 CTL_IO_TASK) ? 13497 io->taskio.tag_num : 13498 io->scsiio.tag_num, 13499 io->io_hdr.flags, 13500 io->io_hdr.status); 13501 } else 13502 io->io_hdr.flags |= CTL_FLAG_ALREADY_DONE; 13503#endif 13504 13505 /* 13506 * This is an internal copy of an I/O, and should not go through 13507 * the normal done processing logic. 13508 */ 13509 if (io->io_hdr.flags & CTL_FLAG_INT_COPY) 13510 return; 13511 13512#ifdef CTL_IO_DELAY 13513 if (io->io_hdr.flags & CTL_FLAG_DELAY_DONE) { 13514 struct ctl_lun *lun; 13515 13516 lun =(struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 13517 13518 io->io_hdr.flags &= ~CTL_FLAG_DELAY_DONE; 13519 } else { 13520 struct ctl_lun *lun; 13521 13522 lun =(struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 13523 13524 if ((lun != NULL) 13525 && (lun->delay_info.done_delay > 0)) { 13526 13527 callout_init(&io->io_hdr.delay_callout, /*mpsafe*/ 1); 13528 io->io_hdr.flags |= CTL_FLAG_DELAY_DONE; 13529 callout_reset(&io->io_hdr.delay_callout, 13530 lun->delay_info.done_delay * hz, 13531 ctl_done_timer_wakeup, io); 13532 if (lun->delay_info.done_type == CTL_DELAY_TYPE_ONESHOT) 13533 lun->delay_info.done_delay = 0; 13534 return; 13535 } 13536 } 13537#endif /* CTL_IO_DELAY */ 13538 13539 ctl_enqueue_done(io); 13540} 13541 13542static void 13543ctl_work_thread(void *arg) 13544{ 13545 struct ctl_thread *thr = (struct ctl_thread *)arg; 13546 struct ctl_softc *softc = thr->ctl_softc; 13547 union ctl_io *io; 13548 int retval; 13549 13550 CTL_DEBUG_PRINT(("ctl_work_thread starting\n")); 13551 13552 for (;;) { 13553 /* 13554 * We handle the queues in this order: 13555 * - ISC 13556 * - done queue (to free up resources, unblock other commands) 13557 * - RtR queue 13558 * - incoming queue 13559 * 13560 * If those queues are empty, we break out of the loop and 13561 * go to sleep. 13562 */ 13563 mtx_lock(&thr->queue_lock); 13564 io = (union ctl_io *)STAILQ_FIRST(&thr->isc_queue); 13565 if (io != NULL) { 13566 STAILQ_REMOVE_HEAD(&thr->isc_queue, links); 13567 mtx_unlock(&thr->queue_lock); 13568 ctl_handle_isc(io); 13569 continue; 13570 } 13571 io = (union ctl_io *)STAILQ_FIRST(&thr->done_queue); 13572 if (io != NULL) { 13573 STAILQ_REMOVE_HEAD(&thr->done_queue, links); 13574 /* clear any blocked commands, call fe_done */ 13575 mtx_unlock(&thr->queue_lock); 13576 ctl_process_done(io); 13577 continue; 13578 } 13579 io = (union ctl_io *)STAILQ_FIRST(&thr->incoming_queue); 13580 if (io != NULL) { 13581 STAILQ_REMOVE_HEAD(&thr->incoming_queue, links); 13582 mtx_unlock(&thr->queue_lock); 13583 if (io->io_hdr.io_type == CTL_IO_TASK) 13584 ctl_run_task(io); 13585 else 13586 ctl_scsiio_precheck(softc, &io->scsiio); 13587 continue; 13588 } 13589 io = (union ctl_io *)STAILQ_FIRST(&thr->rtr_queue); 13590 if (io != NULL) { 13591 STAILQ_REMOVE_HEAD(&thr->rtr_queue, links); 13592 mtx_unlock(&thr->queue_lock); 13593 retval = ctl_scsiio(&io->scsiio); 13594 if (retval != CTL_RETVAL_COMPLETE) 13595 CTL_DEBUG_PRINT(("ctl_scsiio failed\n")); 13596 continue; 13597 } 13598 13599 /* Sleep until we have something to do. */ 13600 mtx_sleep(thr, &thr->queue_lock, PDROP | PRIBIO, "-", 0); 13601 } 13602} 13603 13604static void 13605ctl_lun_thread(void *arg) 13606{ 13607 struct ctl_softc *softc = (struct ctl_softc *)arg; 13608 struct ctl_be_lun *be_lun; 13609 13610 CTL_DEBUG_PRINT(("ctl_lun_thread starting\n")); 13611 13612 for (;;) { 13613 mtx_lock(&softc->ctl_lock); 13614 be_lun = STAILQ_FIRST(&softc->pending_lun_queue); 13615 if (be_lun != NULL) { 13616 STAILQ_REMOVE_HEAD(&softc->pending_lun_queue, links); 13617 mtx_unlock(&softc->ctl_lock); 13618 ctl_create_lun(be_lun); 13619 continue; 13620 } 13621 13622 /* Sleep until we have something to do. */ 13623 mtx_sleep(&softc->pending_lun_queue, &softc->ctl_lock, 13624 PDROP | PRIBIO, "-", 0); 13625 } 13626} 13627 13628static void 13629ctl_thresh_thread(void *arg) 13630{ 13631 struct ctl_softc *softc = (struct ctl_softc *)arg; 13632 struct ctl_lun *lun; 13633 struct scsi_da_rw_recovery_page *rwpage; 13634 struct ctl_logical_block_provisioning_page *page; 13635 const char *attr; 13636 union ctl_ha_msg msg; 13637 uint64_t thres, val; 13638 int i, e, set; 13639 13640 CTL_DEBUG_PRINT(("ctl_thresh_thread starting\n")); 13641 13642 for (;;) { 13643 mtx_lock(&softc->ctl_lock); 13644 STAILQ_FOREACH(lun, &softc->lun_list, links) { 13645 if ((lun->flags & CTL_LUN_DISABLED) || 13646 (lun->flags & CTL_LUN_NO_MEDIA) || 13647 lun->backend->lun_attr == NULL) 13648 continue; 13649 if ((lun->flags & CTL_LUN_PRIMARY_SC) == 0 && 13650 softc->ha_mode == CTL_HA_MODE_XFER) 13651 continue; 13652 rwpage = &lun->mode_pages.rw_er_page[CTL_PAGE_CURRENT]; 13653 if ((rwpage->byte8 & SMS_RWER_LBPERE) == 0) 13654 continue; 13655 e = 0; 13656 page = &lun->mode_pages.lbp_page[CTL_PAGE_CURRENT]; 13657 for (i = 0; i < CTL_NUM_LBP_THRESH; i++) { 13658 if ((page->descr[i].flags & SLBPPD_ENABLED) == 0) 13659 continue; 13660 thres = scsi_4btoul(page->descr[i].count); 13661 thres <<= CTL_LBP_EXPONENT; 13662 switch (page->descr[i].resource) { 13663 case 0x01: 13664 attr = "blocksavail"; 13665 break; 13666 case 0x02: 13667 attr = "blocksused"; 13668 break; 13669 case 0xf1: 13670 attr = "poolblocksavail"; 13671 break; 13672 case 0xf2: 13673 attr = "poolblocksused"; 13674 break; 13675 default: 13676 continue; 13677 } 13678 mtx_unlock(&softc->ctl_lock); // XXX 13679 val = lun->backend->lun_attr( 13680 lun->be_lun->be_lun, attr); 13681 mtx_lock(&softc->ctl_lock); 13682 if (val == UINT64_MAX) 13683 continue; 13684 if ((page->descr[i].flags & SLBPPD_ARMING_MASK) 13685 == SLBPPD_ARMING_INC) 13686 e = (val >= thres); 13687 else 13688 e = (val <= thres); 13689 if (e) 13690 break; 13691 } 13692 mtx_lock(&lun->lun_lock); 13693 if (e) { 13694 scsi_u64to8b((uint8_t *)&page->descr[i] - 13695 (uint8_t *)page, lun->ua_tpt_info); 13696 if (lun->lasttpt == 0 || 13697 time_uptime - lun->lasttpt >= CTL_LBP_UA_PERIOD) { 13698 lun->lasttpt = time_uptime; 13699 ctl_est_ua_all(lun, -1, CTL_UA_THIN_PROV_THRES); 13700 set = 1; 13701 } else 13702 set = 0; 13703 } else { 13704 lun->lasttpt = 0; 13705 ctl_clr_ua_all(lun, -1, CTL_UA_THIN_PROV_THRES); 13706 set = -1; 13707 } 13708 mtx_unlock(&lun->lun_lock); 13709 if (set != 0 && 13710 lun->ctl_softc->ha_mode == CTL_HA_MODE_XFER) { 13711 /* Send msg to other side. */ 13712 bzero(&msg.ua, sizeof(msg.ua)); 13713 msg.hdr.msg_type = CTL_MSG_UA; 13714 msg.hdr.nexus.initid = -1; 13715 msg.hdr.nexus.targ_port = -1; 13716 msg.hdr.nexus.targ_lun = lun->lun; 13717 msg.hdr.nexus.targ_mapped_lun = lun->lun; 13718 msg.ua.ua_all = 1; 13719 msg.ua.ua_set = (set > 0); 13720 msg.ua.ua_type = CTL_UA_THIN_PROV_THRES; 13721 memcpy(msg.ua.ua_info, lun->ua_tpt_info, 8); 13722 mtx_unlock(&softc->ctl_lock); // XXX 13723 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, 13724 sizeof(msg.ua), M_WAITOK); 13725 mtx_lock(&softc->ctl_lock); 13726 } 13727 } 13728 mtx_unlock(&softc->ctl_lock); 13729 pause("-", CTL_LBP_PERIOD * hz); 13730 } 13731} 13732 13733static void 13734ctl_enqueue_incoming(union ctl_io *io) 13735{ 13736 struct ctl_softc *softc = control_softc; 13737 struct ctl_thread *thr; 13738 u_int idx; 13739 13740 idx = (io->io_hdr.nexus.targ_port * 127 + 13741 io->io_hdr.nexus.initid) % worker_threads; 13742 thr = &softc->threads[idx]; 13743 mtx_lock(&thr->queue_lock); 13744 STAILQ_INSERT_TAIL(&thr->incoming_queue, &io->io_hdr, links); 13745 mtx_unlock(&thr->queue_lock); 13746 wakeup(thr); 13747} 13748 13749static void 13750ctl_enqueue_rtr(union ctl_io *io) 13751{ 13752 struct ctl_softc *softc = control_softc; 13753 struct ctl_thread *thr; 13754 13755 thr = &softc->threads[io->io_hdr.nexus.targ_mapped_lun % worker_threads]; 13756 mtx_lock(&thr->queue_lock); 13757 STAILQ_INSERT_TAIL(&thr->rtr_queue, &io->io_hdr, links); 13758 mtx_unlock(&thr->queue_lock); 13759 wakeup(thr); 13760} 13761 13762static void 13763ctl_enqueue_done(union ctl_io *io) 13764{ 13765 struct ctl_softc *softc = control_softc; 13766 struct ctl_thread *thr; 13767 13768 thr = &softc->threads[io->io_hdr.nexus.targ_mapped_lun % worker_threads]; 13769 mtx_lock(&thr->queue_lock); 13770 STAILQ_INSERT_TAIL(&thr->done_queue, &io->io_hdr, links); 13771 mtx_unlock(&thr->queue_lock); 13772 wakeup(thr); 13773} 13774 13775static void 13776ctl_enqueue_isc(union ctl_io *io) 13777{ 13778 struct ctl_softc *softc = control_softc; 13779 struct ctl_thread *thr; 13780 13781 thr = &softc->threads[io->io_hdr.nexus.targ_mapped_lun % worker_threads]; 13782 mtx_lock(&thr->queue_lock); 13783 STAILQ_INSERT_TAIL(&thr->isc_queue, &io->io_hdr, links); 13784 mtx_unlock(&thr->queue_lock); 13785 wakeup(thr); 13786} 13787 13788/* 13789 * vim: ts=8 13790 */ 13791