ctl.c revision 290774
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 290774 2015-11-13 19:21:45Z 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 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 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 ctl_softc *softc; 1784 void *other_pool; 1785 int i, error; 1786 1787 softc = control_softc = malloc(sizeof(*control_softc), M_DEVBUF, 1788 M_WAITOK | M_ZERO); 1789 1790 softc->dev = make_dev(&ctl_cdevsw, 0, UID_ROOT, GID_OPERATOR, 0600, 1791 "cam/ctl"); 1792 softc->dev->si_drv1 = softc; 1793 1794 sysctl_ctx_init(&softc->sysctl_ctx); 1795 softc->sysctl_tree = SYSCTL_ADD_NODE(&softc->sysctl_ctx, 1796 SYSCTL_STATIC_CHILDREN(_kern_cam), OID_AUTO, "ctl", 1797 CTLFLAG_RD, 0, "CAM Target Layer"); 1798 1799 if (softc->sysctl_tree == NULL) { 1800 printf("%s: unable to allocate sysctl tree\n", __func__); 1801 destroy_dev(softc->dev); 1802 free(control_softc, M_DEVBUF); 1803 control_softc = NULL; 1804 return (ENOMEM); 1805 } 1806 1807 mtx_init(&softc->ctl_lock, "CTL mutex", NULL, MTX_DEF); 1808 softc->io_zone = uma_zcreate("CTL IO", sizeof(union ctl_io), 1809 NULL, NULL, NULL, NULL, UMA_ALIGN_PTR, 0); 1810 softc->flags = 0; 1811 1812 SYSCTL_ADD_INT(&softc->sysctl_ctx, SYSCTL_CHILDREN(softc->sysctl_tree), 1813 OID_AUTO, "ha_mode", CTLFLAG_RDTUN, (int *)&softc->ha_mode, 0, 1814 "HA mode (0 - act/stby, 1 - serialize only, 2 - xfer)"); 1815 1816 /* 1817 * In Copan's HA scheme, the "master" and "slave" roles are 1818 * figured out through the slot the controller is in. Although it 1819 * is an active/active system, someone has to be in charge. 1820 */ 1821 SYSCTL_ADD_INT(&softc->sysctl_ctx, SYSCTL_CHILDREN(softc->sysctl_tree), 1822 OID_AUTO, "ha_id", CTLFLAG_RDTUN, &softc->ha_id, 0, 1823 "HA head ID (0 - no HA)"); 1824 if (softc->ha_id == 0 || softc->ha_id > NUM_TARGET_PORT_GROUPS) { 1825 softc->flags |= CTL_FLAG_ACTIVE_SHELF; 1826 softc->is_single = 1; 1827 softc->port_cnt = CTL_MAX_PORTS; 1828 softc->port_min = 0; 1829 } else { 1830 softc->port_cnt = CTL_MAX_PORTS / NUM_TARGET_PORT_GROUPS; 1831 softc->port_min = (softc->ha_id - 1) * softc->port_cnt; 1832 } 1833 softc->port_max = softc->port_min + softc->port_cnt; 1834 softc->init_min = softc->port_min * CTL_MAX_INIT_PER_PORT; 1835 softc->init_max = softc->port_max * CTL_MAX_INIT_PER_PORT; 1836 1837 SYSCTL_ADD_INT(&softc->sysctl_ctx, SYSCTL_CHILDREN(softc->sysctl_tree), 1838 OID_AUTO, "ha_link", CTLFLAG_RD, (int *)&softc->ha_link, 0, 1839 "HA link state (0 - offline, 1 - unknown, 2 - online)"); 1840 1841 STAILQ_INIT(&softc->lun_list); 1842 STAILQ_INIT(&softc->pending_lun_queue); 1843 STAILQ_INIT(&softc->fe_list); 1844 STAILQ_INIT(&softc->port_list); 1845 STAILQ_INIT(&softc->be_list); 1846 ctl_tpc_init(softc); 1847 1848 if (ctl_pool_create(softc, "othersc", CTL_POOL_ENTRIES_OTHER_SC, 1849 &other_pool) != 0) 1850 { 1851 printf("ctl: can't allocate %d entry other SC pool, " 1852 "exiting\n", CTL_POOL_ENTRIES_OTHER_SC); 1853 return (ENOMEM); 1854 } 1855 softc->othersc_pool = other_pool; 1856 1857 if (worker_threads <= 0) 1858 worker_threads = max(1, mp_ncpus / 4); 1859 if (worker_threads > CTL_MAX_THREADS) 1860 worker_threads = CTL_MAX_THREADS; 1861 1862 for (i = 0; i < worker_threads; i++) { 1863 struct ctl_thread *thr = &softc->threads[i]; 1864 1865 mtx_init(&thr->queue_lock, "CTL queue mutex", NULL, MTX_DEF); 1866 thr->ctl_softc = softc; 1867 STAILQ_INIT(&thr->incoming_queue); 1868 STAILQ_INIT(&thr->rtr_queue); 1869 STAILQ_INIT(&thr->done_queue); 1870 STAILQ_INIT(&thr->isc_queue); 1871 1872 error = kproc_kthread_add(ctl_work_thread, thr, 1873 &softc->ctl_proc, &thr->thread, 0, 0, "ctl", "work%d", i); 1874 if (error != 0) { 1875 printf("error creating CTL work thread!\n"); 1876 ctl_pool_free(other_pool); 1877 return (error); 1878 } 1879 } 1880 error = kproc_kthread_add(ctl_lun_thread, softc, 1881 &softc->ctl_proc, NULL, 0, 0, "ctl", "lun"); 1882 if (error != 0) { 1883 printf("error creating CTL lun thread!\n"); 1884 ctl_pool_free(other_pool); 1885 return (error); 1886 } 1887 error = kproc_kthread_add(ctl_thresh_thread, softc, 1888 &softc->ctl_proc, NULL, 0, 0, "ctl", "thresh"); 1889 if (error != 0) { 1890 printf("error creating CTL threshold thread!\n"); 1891 ctl_pool_free(other_pool); 1892 return (error); 1893 } 1894 1895 SYSCTL_ADD_PROC(&softc->sysctl_ctx,SYSCTL_CHILDREN(softc->sysctl_tree), 1896 OID_AUTO, "ha_role", CTLTYPE_INT | CTLFLAG_RWTUN, 1897 softc, 0, ctl_ha_role_sysctl, "I", "HA role for this head"); 1898 1899 if (softc->is_single == 0) { 1900 ctl_frontend_register(&ha_frontend); 1901 if (ctl_ha_msg_init(softc) != CTL_HA_STATUS_SUCCESS) { 1902 printf("ctl_init: ctl_ha_msg_init failed.\n"); 1903 softc->is_single = 1; 1904 } else 1905 if (ctl_ha_msg_register(CTL_HA_CHAN_CTL, ctl_isc_event_handler) 1906 != CTL_HA_STATUS_SUCCESS) { 1907 printf("ctl_init: ctl_ha_msg_register failed.\n"); 1908 softc->is_single = 1; 1909 } 1910 } 1911 return (0); 1912} 1913 1914void 1915ctl_shutdown(void) 1916{ 1917 struct ctl_softc *softc = control_softc; 1918 struct ctl_lun *lun, *next_lun; 1919 1920 if (softc->is_single == 0) { 1921 ctl_ha_msg_shutdown(softc); 1922 if (ctl_ha_msg_deregister(CTL_HA_CHAN_CTL) 1923 != CTL_HA_STATUS_SUCCESS) 1924 printf("%s: ctl_ha_msg_deregister failed.\n", __func__); 1925 if (ctl_ha_msg_destroy(softc) != CTL_HA_STATUS_SUCCESS) 1926 printf("%s: ctl_ha_msg_destroy failed.\n", __func__); 1927 ctl_frontend_deregister(&ha_frontend); 1928 } 1929 1930 mtx_lock(&softc->ctl_lock); 1931 1932 STAILQ_FOREACH_SAFE(lun, &softc->lun_list, links, next_lun) 1933 ctl_free_lun(lun); 1934 1935 mtx_unlock(&softc->ctl_lock); 1936 1937#if 0 1938 ctl_shutdown_thread(softc->work_thread); 1939 mtx_destroy(&softc->queue_lock); 1940#endif 1941 1942 ctl_tpc_shutdown(softc); 1943 uma_zdestroy(softc->io_zone); 1944 mtx_destroy(&softc->ctl_lock); 1945 1946 destroy_dev(softc->dev); 1947 1948 sysctl_ctx_free(&softc->sysctl_ctx); 1949 1950 free(control_softc, M_DEVBUF); 1951 control_softc = NULL; 1952} 1953 1954static int 1955ctl_module_event_handler(module_t mod, int what, void *arg) 1956{ 1957 1958 switch (what) { 1959 case MOD_LOAD: 1960 return (ctl_init()); 1961 case MOD_UNLOAD: 1962 return (EBUSY); 1963 default: 1964 return (EOPNOTSUPP); 1965 } 1966} 1967 1968/* 1969 * XXX KDM should we do some access checks here? Bump a reference count to 1970 * prevent a CTL module from being unloaded while someone has it open? 1971 */ 1972static int 1973ctl_open(struct cdev *dev, int flags, int fmt, struct thread *td) 1974{ 1975 return (0); 1976} 1977 1978static int 1979ctl_close(struct cdev *dev, int flags, int fmt, struct thread *td) 1980{ 1981 return (0); 1982} 1983 1984/* 1985 * Remove an initiator by port number and initiator ID. 1986 * Returns 0 for success, -1 for failure. 1987 */ 1988int 1989ctl_remove_initiator(struct ctl_port *port, int iid) 1990{ 1991 struct ctl_softc *softc = port->ctl_softc; 1992 1993 mtx_assert(&softc->ctl_lock, MA_NOTOWNED); 1994 1995 if (iid > CTL_MAX_INIT_PER_PORT) { 1996 printf("%s: initiator ID %u > maximun %u!\n", 1997 __func__, iid, CTL_MAX_INIT_PER_PORT); 1998 return (-1); 1999 } 2000 2001 mtx_lock(&softc->ctl_lock); 2002 port->wwpn_iid[iid].in_use--; 2003 port->wwpn_iid[iid].last_use = time_uptime; 2004 mtx_unlock(&softc->ctl_lock); 2005 ctl_isc_announce_iid(port, iid); 2006 2007 return (0); 2008} 2009 2010/* 2011 * Add an initiator to the initiator map. 2012 * Returns iid for success, < 0 for failure. 2013 */ 2014int 2015ctl_add_initiator(struct ctl_port *port, int iid, uint64_t wwpn, char *name) 2016{ 2017 struct ctl_softc *softc = port->ctl_softc; 2018 time_t best_time; 2019 int i, best; 2020 2021 mtx_assert(&softc->ctl_lock, MA_NOTOWNED); 2022 2023 if (iid >= CTL_MAX_INIT_PER_PORT) { 2024 printf("%s: WWPN %#jx initiator ID %u > maximum %u!\n", 2025 __func__, wwpn, iid, CTL_MAX_INIT_PER_PORT); 2026 free(name, M_CTL); 2027 return (-1); 2028 } 2029 2030 mtx_lock(&softc->ctl_lock); 2031 2032 if (iid < 0 && (wwpn != 0 || name != NULL)) { 2033 for (i = 0; i < CTL_MAX_INIT_PER_PORT; i++) { 2034 if (wwpn != 0 && wwpn == port->wwpn_iid[i].wwpn) { 2035 iid = i; 2036 break; 2037 } 2038 if (name != NULL && port->wwpn_iid[i].name != NULL && 2039 strcmp(name, port->wwpn_iid[i].name) == 0) { 2040 iid = i; 2041 break; 2042 } 2043 } 2044 } 2045 2046 if (iid < 0) { 2047 for (i = 0; i < CTL_MAX_INIT_PER_PORT; i++) { 2048 if (port->wwpn_iid[i].in_use == 0 && 2049 port->wwpn_iid[i].wwpn == 0 && 2050 port->wwpn_iid[i].name == NULL) { 2051 iid = i; 2052 break; 2053 } 2054 } 2055 } 2056 2057 if (iid < 0) { 2058 best = -1; 2059 best_time = INT32_MAX; 2060 for (i = 0; i < CTL_MAX_INIT_PER_PORT; i++) { 2061 if (port->wwpn_iid[i].in_use == 0) { 2062 if (port->wwpn_iid[i].last_use < best_time) { 2063 best = i; 2064 best_time = port->wwpn_iid[i].last_use; 2065 } 2066 } 2067 } 2068 iid = best; 2069 } 2070 2071 if (iid < 0) { 2072 mtx_unlock(&softc->ctl_lock); 2073 free(name, M_CTL); 2074 return (-2); 2075 } 2076 2077 if (port->wwpn_iid[iid].in_use > 0 && (wwpn != 0 || name != NULL)) { 2078 /* 2079 * This is not an error yet. 2080 */ 2081 if (wwpn != 0 && wwpn == port->wwpn_iid[iid].wwpn) { 2082#if 0 2083 printf("%s: port %d iid %u WWPN %#jx arrived" 2084 " again\n", __func__, port->targ_port, 2085 iid, (uintmax_t)wwpn); 2086#endif 2087 goto take; 2088 } 2089 if (name != NULL && port->wwpn_iid[iid].name != NULL && 2090 strcmp(name, port->wwpn_iid[iid].name) == 0) { 2091#if 0 2092 printf("%s: port %d iid %u name '%s' arrived" 2093 " again\n", __func__, port->targ_port, 2094 iid, name); 2095#endif 2096 goto take; 2097 } 2098 2099 /* 2100 * This is an error, but what do we do about it? The 2101 * driver is telling us we have a new WWPN for this 2102 * initiator ID, so we pretty much need to use it. 2103 */ 2104 printf("%s: port %d iid %u WWPN %#jx '%s' arrived," 2105 " but WWPN %#jx '%s' is still at that address\n", 2106 __func__, port->targ_port, iid, wwpn, name, 2107 (uintmax_t)port->wwpn_iid[iid].wwpn, 2108 port->wwpn_iid[iid].name); 2109 2110 /* 2111 * XXX KDM clear have_ca and ua_pending on each LUN for 2112 * this initiator. 2113 */ 2114 } 2115take: 2116 free(port->wwpn_iid[iid].name, M_CTL); 2117 port->wwpn_iid[iid].name = name; 2118 port->wwpn_iid[iid].wwpn = wwpn; 2119 port->wwpn_iid[iid].in_use++; 2120 mtx_unlock(&softc->ctl_lock); 2121 ctl_isc_announce_iid(port, iid); 2122 2123 return (iid); 2124} 2125 2126static int 2127ctl_create_iid(struct ctl_port *port, int iid, uint8_t *buf) 2128{ 2129 int len; 2130 2131 switch (port->port_type) { 2132 case CTL_PORT_FC: 2133 { 2134 struct scsi_transportid_fcp *id = 2135 (struct scsi_transportid_fcp *)buf; 2136 if (port->wwpn_iid[iid].wwpn == 0) 2137 return (0); 2138 memset(id, 0, sizeof(*id)); 2139 id->format_protocol = SCSI_PROTO_FC; 2140 scsi_u64to8b(port->wwpn_iid[iid].wwpn, id->n_port_name); 2141 return (sizeof(*id)); 2142 } 2143 case CTL_PORT_ISCSI: 2144 { 2145 struct scsi_transportid_iscsi_port *id = 2146 (struct scsi_transportid_iscsi_port *)buf; 2147 if (port->wwpn_iid[iid].name == NULL) 2148 return (0); 2149 memset(id, 0, 256); 2150 id->format_protocol = SCSI_TRN_ISCSI_FORMAT_PORT | 2151 SCSI_PROTO_ISCSI; 2152 len = strlcpy(id->iscsi_name, port->wwpn_iid[iid].name, 252) + 1; 2153 len = roundup2(min(len, 252), 4); 2154 scsi_ulto2b(len, id->additional_length); 2155 return (sizeof(*id) + len); 2156 } 2157 case CTL_PORT_SAS: 2158 { 2159 struct scsi_transportid_sas *id = 2160 (struct scsi_transportid_sas *)buf; 2161 if (port->wwpn_iid[iid].wwpn == 0) 2162 return (0); 2163 memset(id, 0, sizeof(*id)); 2164 id->format_protocol = SCSI_PROTO_SAS; 2165 scsi_u64to8b(port->wwpn_iid[iid].wwpn, id->sas_address); 2166 return (sizeof(*id)); 2167 } 2168 default: 2169 { 2170 struct scsi_transportid_spi *id = 2171 (struct scsi_transportid_spi *)buf; 2172 memset(id, 0, sizeof(*id)); 2173 id->format_protocol = SCSI_PROTO_SPI; 2174 scsi_ulto2b(iid, id->scsi_addr); 2175 scsi_ulto2b(port->targ_port, id->rel_trgt_port_id); 2176 return (sizeof(*id)); 2177 } 2178 } 2179} 2180 2181/* 2182 * Serialize a command that went down the "wrong" side, and so was sent to 2183 * this controller for execution. The logic is a little different than the 2184 * standard case in ctl_scsiio_precheck(). Errors in this case need to get 2185 * sent back to the other side, but in the success case, we execute the 2186 * command on this side (XFER mode) or tell the other side to execute it 2187 * (SER_ONLY mode). 2188 */ 2189static int 2190ctl_serialize_other_sc_cmd(struct ctl_scsiio *ctsio) 2191{ 2192 struct ctl_softc *softc = control_softc; 2193 union ctl_ha_msg msg_info; 2194 struct ctl_port *port; 2195 struct ctl_lun *lun; 2196 const struct ctl_cmd_entry *entry; 2197 int retval = 0; 2198 uint32_t targ_lun; 2199 2200 targ_lun = ctsio->io_hdr.nexus.targ_mapped_lun; 2201 mtx_lock(&softc->ctl_lock); 2202 2203 /* Make sure that we know about this port. */ 2204 port = ctl_io_port(&ctsio->io_hdr); 2205 if (port == NULL || (port->status & CTL_PORT_STATUS_ONLINE) == 0) { 2206 ctl_set_internal_failure(ctsio, /*sks_valid*/ 0, 2207 /*retry_count*/ 1); 2208 goto badjuju; 2209 } 2210 2211 /* Make sure that we know about this LUN. */ 2212 if ((targ_lun < CTL_MAX_LUNS) && 2213 ((lun = softc->ctl_luns[targ_lun]) != NULL)) { 2214 mtx_lock(&lun->lun_lock); 2215 mtx_unlock(&softc->ctl_lock); 2216 /* 2217 * If the LUN is invalid, pretend that it doesn't exist. 2218 * It will go away as soon as all pending I/O has been 2219 * completed. 2220 */ 2221 if (lun->flags & CTL_LUN_DISABLED) { 2222 mtx_unlock(&lun->lun_lock); 2223 lun = NULL; 2224 } 2225 } else { 2226 mtx_unlock(&softc->ctl_lock); 2227 lun = NULL; 2228 } 2229 if (lun == NULL) { 2230 /* 2231 * The other node would not send this request to us unless 2232 * received announce that we are primary node for this LUN. 2233 * If this LUN does not exist now, it is probably result of 2234 * a race, so respond to initiator in the most opaque way. 2235 */ 2236 ctl_set_busy(ctsio); 2237 goto badjuju; 2238 } 2239 2240 entry = ctl_get_cmd_entry(ctsio, NULL); 2241 if (ctl_scsiio_lun_check(lun, entry, ctsio) != 0) { 2242 mtx_unlock(&lun->lun_lock); 2243 goto badjuju; 2244 } 2245 2246 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr = lun; 2247 ctsio->io_hdr.ctl_private[CTL_PRIV_BACKEND_LUN].ptr = lun->be_lun; 2248 2249 /* 2250 * Every I/O goes into the OOA queue for a 2251 * particular LUN, and stays there until completion. 2252 */ 2253#ifdef CTL_TIME_IO 2254 if (TAILQ_EMPTY(&lun->ooa_queue)) 2255 lun->idle_time += getsbinuptime() - lun->last_busy; 2256#endif 2257 TAILQ_INSERT_TAIL(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 2258 2259 switch (ctl_check_ooa(lun, (union ctl_io *)ctsio, 2260 (union ctl_io *)TAILQ_PREV(&ctsio->io_hdr, ctl_ooaq, 2261 ooa_links))) { 2262 case CTL_ACTION_BLOCK: 2263 ctsio->io_hdr.flags |= CTL_FLAG_BLOCKED; 2264 TAILQ_INSERT_TAIL(&lun->blocked_queue, &ctsio->io_hdr, 2265 blocked_links); 2266 mtx_unlock(&lun->lun_lock); 2267 break; 2268 case CTL_ACTION_PASS: 2269 case CTL_ACTION_SKIP: 2270 if (softc->ha_mode == CTL_HA_MODE_XFER) { 2271 ctsio->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 2272 ctl_enqueue_rtr((union ctl_io *)ctsio); 2273 mtx_unlock(&lun->lun_lock); 2274 } else { 2275 ctsio->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 2276 mtx_unlock(&lun->lun_lock); 2277 2278 /* send msg back to other side */ 2279 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 2280 msg_info.hdr.serializing_sc = (union ctl_io *)ctsio; 2281 msg_info.hdr.msg_type = CTL_MSG_R2R; 2282 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 2283 sizeof(msg_info.hdr), M_WAITOK); 2284 } 2285 break; 2286 case CTL_ACTION_OVERLAP: 2287 TAILQ_REMOVE(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 2288 mtx_unlock(&lun->lun_lock); 2289 ctl_set_overlapped_cmd(ctsio); 2290 goto badjuju; 2291 case CTL_ACTION_OVERLAP_TAG: 2292 TAILQ_REMOVE(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 2293 mtx_unlock(&lun->lun_lock); 2294 ctl_set_overlapped_tag(ctsio, ctsio->tag_num); 2295 goto badjuju; 2296 case CTL_ACTION_ERROR: 2297 default: 2298 TAILQ_REMOVE(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 2299 mtx_unlock(&lun->lun_lock); 2300 2301 ctl_set_internal_failure(ctsio, /*sks_valid*/ 0, 2302 /*retry_count*/ 0); 2303badjuju: 2304 ctl_copy_sense_data_back((union ctl_io *)ctsio, &msg_info); 2305 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 2306 msg_info.hdr.serializing_sc = NULL; 2307 msg_info.hdr.msg_type = CTL_MSG_BAD_JUJU; 2308 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 2309 sizeof(msg_info.scsi), M_WAITOK); 2310 retval = 1; 2311 break; 2312 } 2313 return (retval); 2314} 2315 2316/* 2317 * Returns 0 for success, errno for failure. 2318 */ 2319static void 2320ctl_ioctl_fill_ooa(struct ctl_lun *lun, uint32_t *cur_fill_num, 2321 struct ctl_ooa *ooa_hdr, struct ctl_ooa_entry *kern_entries) 2322{ 2323 union ctl_io *io; 2324 2325 mtx_lock(&lun->lun_lock); 2326 for (io = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); (io != NULL); 2327 (*cur_fill_num)++, io = (union ctl_io *)TAILQ_NEXT(&io->io_hdr, 2328 ooa_links)) { 2329 struct ctl_ooa_entry *entry; 2330 2331 /* 2332 * If we've got more than we can fit, just count the 2333 * remaining entries. 2334 */ 2335 if (*cur_fill_num >= ooa_hdr->alloc_num) 2336 continue; 2337 2338 entry = &kern_entries[*cur_fill_num]; 2339 2340 entry->tag_num = io->scsiio.tag_num; 2341 entry->lun_num = lun->lun; 2342#ifdef CTL_TIME_IO 2343 entry->start_bt = io->io_hdr.start_bt; 2344#endif 2345 bcopy(io->scsiio.cdb, entry->cdb, io->scsiio.cdb_len); 2346 entry->cdb_len = io->scsiio.cdb_len; 2347 if (io->io_hdr.flags & CTL_FLAG_BLOCKED) 2348 entry->cmd_flags |= CTL_OOACMD_FLAG_BLOCKED; 2349 2350 if (io->io_hdr.flags & CTL_FLAG_DMA_INPROG) 2351 entry->cmd_flags |= CTL_OOACMD_FLAG_DMA; 2352 2353 if (io->io_hdr.flags & CTL_FLAG_ABORT) 2354 entry->cmd_flags |= CTL_OOACMD_FLAG_ABORT; 2355 2356 if (io->io_hdr.flags & CTL_FLAG_IS_WAS_ON_RTR) 2357 entry->cmd_flags |= CTL_OOACMD_FLAG_RTR; 2358 2359 if (io->io_hdr.flags & CTL_FLAG_DMA_QUEUED) 2360 entry->cmd_flags |= CTL_OOACMD_FLAG_DMA_QUEUED; 2361 } 2362 mtx_unlock(&lun->lun_lock); 2363} 2364 2365static void * 2366ctl_copyin_alloc(void *user_addr, int len, char *error_str, 2367 size_t error_str_len) 2368{ 2369 void *kptr; 2370 2371 kptr = malloc(len, M_CTL, M_WAITOK | M_ZERO); 2372 2373 if (copyin(user_addr, kptr, len) != 0) { 2374 snprintf(error_str, error_str_len, "Error copying %d bytes " 2375 "from user address %p to kernel address %p", len, 2376 user_addr, kptr); 2377 free(kptr, M_CTL); 2378 return (NULL); 2379 } 2380 2381 return (kptr); 2382} 2383 2384static void 2385ctl_free_args(int num_args, struct ctl_be_arg *args) 2386{ 2387 int i; 2388 2389 if (args == NULL) 2390 return; 2391 2392 for (i = 0; i < num_args; i++) { 2393 free(args[i].kname, M_CTL); 2394 free(args[i].kvalue, M_CTL); 2395 } 2396 2397 free(args, M_CTL); 2398} 2399 2400static struct ctl_be_arg * 2401ctl_copyin_args(int num_args, struct ctl_be_arg *uargs, 2402 char *error_str, size_t error_str_len) 2403{ 2404 struct ctl_be_arg *args; 2405 int i; 2406 2407 args = ctl_copyin_alloc(uargs, num_args * sizeof(*args), 2408 error_str, error_str_len); 2409 2410 if (args == NULL) 2411 goto bailout; 2412 2413 for (i = 0; i < num_args; i++) { 2414 args[i].kname = NULL; 2415 args[i].kvalue = NULL; 2416 } 2417 2418 for (i = 0; i < num_args; i++) { 2419 uint8_t *tmpptr; 2420 2421 args[i].kname = ctl_copyin_alloc(args[i].name, 2422 args[i].namelen, error_str, error_str_len); 2423 if (args[i].kname == NULL) 2424 goto bailout; 2425 2426 if (args[i].kname[args[i].namelen - 1] != '\0') { 2427 snprintf(error_str, error_str_len, "Argument %d " 2428 "name is not NUL-terminated", i); 2429 goto bailout; 2430 } 2431 2432 if (args[i].flags & CTL_BEARG_RD) { 2433 tmpptr = ctl_copyin_alloc(args[i].value, 2434 args[i].vallen, error_str, error_str_len); 2435 if (tmpptr == NULL) 2436 goto bailout; 2437 if ((args[i].flags & CTL_BEARG_ASCII) 2438 && (tmpptr[args[i].vallen - 1] != '\0')) { 2439 snprintf(error_str, error_str_len, "Argument " 2440 "%d value is not NUL-terminated", i); 2441 goto bailout; 2442 } 2443 args[i].kvalue = tmpptr; 2444 } else { 2445 args[i].kvalue = malloc(args[i].vallen, 2446 M_CTL, M_WAITOK | M_ZERO); 2447 } 2448 } 2449 2450 return (args); 2451bailout: 2452 2453 ctl_free_args(num_args, args); 2454 2455 return (NULL); 2456} 2457 2458static void 2459ctl_copyout_args(int num_args, struct ctl_be_arg *args) 2460{ 2461 int i; 2462 2463 for (i = 0; i < num_args; i++) { 2464 if (args[i].flags & CTL_BEARG_WR) 2465 copyout(args[i].kvalue, args[i].value, args[i].vallen); 2466 } 2467} 2468 2469/* 2470 * Escape characters that are illegal or not recommended in XML. 2471 */ 2472int 2473ctl_sbuf_printf_esc(struct sbuf *sb, char *str, int size) 2474{ 2475 char *end = str + size; 2476 int retval; 2477 2478 retval = 0; 2479 2480 for (; *str && str < end; str++) { 2481 switch (*str) { 2482 case '&': 2483 retval = sbuf_printf(sb, "&"); 2484 break; 2485 case '>': 2486 retval = sbuf_printf(sb, ">"); 2487 break; 2488 case '<': 2489 retval = sbuf_printf(sb, "<"); 2490 break; 2491 default: 2492 retval = sbuf_putc(sb, *str); 2493 break; 2494 } 2495 2496 if (retval != 0) 2497 break; 2498 2499 } 2500 2501 return (retval); 2502} 2503 2504static void 2505ctl_id_sbuf(struct ctl_devid *id, struct sbuf *sb) 2506{ 2507 struct scsi_vpd_id_descriptor *desc; 2508 int i; 2509 2510 if (id == NULL || id->len < 4) 2511 return; 2512 desc = (struct scsi_vpd_id_descriptor *)id->data; 2513 switch (desc->id_type & SVPD_ID_TYPE_MASK) { 2514 case SVPD_ID_TYPE_T10: 2515 sbuf_printf(sb, "t10."); 2516 break; 2517 case SVPD_ID_TYPE_EUI64: 2518 sbuf_printf(sb, "eui."); 2519 break; 2520 case SVPD_ID_TYPE_NAA: 2521 sbuf_printf(sb, "naa."); 2522 break; 2523 case SVPD_ID_TYPE_SCSI_NAME: 2524 break; 2525 } 2526 switch (desc->proto_codeset & SVPD_ID_CODESET_MASK) { 2527 case SVPD_ID_CODESET_BINARY: 2528 for (i = 0; i < desc->length; i++) 2529 sbuf_printf(sb, "%02x", desc->identifier[i]); 2530 break; 2531 case SVPD_ID_CODESET_ASCII: 2532 sbuf_printf(sb, "%.*s", (int)desc->length, 2533 (char *)desc->identifier); 2534 break; 2535 case SVPD_ID_CODESET_UTF8: 2536 sbuf_printf(sb, "%s", (char *)desc->identifier); 2537 break; 2538 } 2539} 2540 2541static int 2542ctl_ioctl(struct cdev *dev, u_long cmd, caddr_t addr, int flag, 2543 struct thread *td) 2544{ 2545 struct ctl_softc *softc = dev->si_drv1; 2546 struct ctl_lun *lun; 2547 int retval; 2548 2549 retval = 0; 2550 2551 switch (cmd) { 2552 case CTL_IO: 2553 retval = ctl_ioctl_io(dev, cmd, addr, flag, td); 2554 break; 2555 case CTL_ENABLE_PORT: 2556 case CTL_DISABLE_PORT: 2557 case CTL_SET_PORT_WWNS: { 2558 struct ctl_port *port; 2559 struct ctl_port_entry *entry; 2560 2561 entry = (struct ctl_port_entry *)addr; 2562 2563 mtx_lock(&softc->ctl_lock); 2564 STAILQ_FOREACH(port, &softc->port_list, links) { 2565 int action, done; 2566 2567 if (port->targ_port < softc->port_min || 2568 port->targ_port >= softc->port_max) 2569 continue; 2570 2571 action = 0; 2572 done = 0; 2573 if ((entry->port_type == CTL_PORT_NONE) 2574 && (entry->targ_port == port->targ_port)) { 2575 /* 2576 * If the user only wants to enable or 2577 * disable or set WWNs on a specific port, 2578 * do the operation and we're done. 2579 */ 2580 action = 1; 2581 done = 1; 2582 } else if (entry->port_type & port->port_type) { 2583 /* 2584 * Compare the user's type mask with the 2585 * particular frontend type to see if we 2586 * have a match. 2587 */ 2588 action = 1; 2589 done = 0; 2590 2591 /* 2592 * Make sure the user isn't trying to set 2593 * WWNs on multiple ports at the same time. 2594 */ 2595 if (cmd == CTL_SET_PORT_WWNS) { 2596 printf("%s: Can't set WWNs on " 2597 "multiple ports\n", __func__); 2598 retval = EINVAL; 2599 break; 2600 } 2601 } 2602 if (action == 0) 2603 continue; 2604 2605 /* 2606 * XXX KDM we have to drop the lock here, because 2607 * the online/offline operations can potentially 2608 * block. We need to reference count the frontends 2609 * so they can't go away, 2610 */ 2611 if (cmd == CTL_ENABLE_PORT) { 2612 mtx_unlock(&softc->ctl_lock); 2613 ctl_port_online(port); 2614 mtx_lock(&softc->ctl_lock); 2615 } else if (cmd == CTL_DISABLE_PORT) { 2616 mtx_unlock(&softc->ctl_lock); 2617 ctl_port_offline(port); 2618 mtx_lock(&softc->ctl_lock); 2619 } else if (cmd == CTL_SET_PORT_WWNS) { 2620 ctl_port_set_wwns(port, 2621 (entry->flags & CTL_PORT_WWNN_VALID) ? 2622 1 : 0, entry->wwnn, 2623 (entry->flags & CTL_PORT_WWPN_VALID) ? 2624 1 : 0, entry->wwpn); 2625 } 2626 if (done != 0) 2627 break; 2628 } 2629 mtx_unlock(&softc->ctl_lock); 2630 break; 2631 } 2632 case CTL_GET_OOA: { 2633 struct ctl_ooa *ooa_hdr; 2634 struct ctl_ooa_entry *entries; 2635 uint32_t cur_fill_num; 2636 2637 ooa_hdr = (struct ctl_ooa *)addr; 2638 2639 if ((ooa_hdr->alloc_len == 0) 2640 || (ooa_hdr->alloc_num == 0)) { 2641 printf("%s: CTL_GET_OOA: alloc len %u and alloc num %u " 2642 "must be non-zero\n", __func__, 2643 ooa_hdr->alloc_len, ooa_hdr->alloc_num); 2644 retval = EINVAL; 2645 break; 2646 } 2647 2648 if (ooa_hdr->alloc_len != (ooa_hdr->alloc_num * 2649 sizeof(struct ctl_ooa_entry))) { 2650 printf("%s: CTL_GET_OOA: alloc len %u must be alloc " 2651 "num %d * sizeof(struct ctl_ooa_entry) %zd\n", 2652 __func__, ooa_hdr->alloc_len, 2653 ooa_hdr->alloc_num,sizeof(struct ctl_ooa_entry)); 2654 retval = EINVAL; 2655 break; 2656 } 2657 2658 entries = malloc(ooa_hdr->alloc_len, M_CTL, M_WAITOK | M_ZERO); 2659 if (entries == NULL) { 2660 printf("%s: could not allocate %d bytes for OOA " 2661 "dump\n", __func__, ooa_hdr->alloc_len); 2662 retval = ENOMEM; 2663 break; 2664 } 2665 2666 mtx_lock(&softc->ctl_lock); 2667 if (((ooa_hdr->flags & CTL_OOA_FLAG_ALL_LUNS) == 0) 2668 && ((ooa_hdr->lun_num >= CTL_MAX_LUNS) 2669 || (softc->ctl_luns[ooa_hdr->lun_num] == NULL))) { 2670 mtx_unlock(&softc->ctl_lock); 2671 free(entries, M_CTL); 2672 printf("%s: CTL_GET_OOA: invalid LUN %ju\n", 2673 __func__, (uintmax_t)ooa_hdr->lun_num); 2674 retval = EINVAL; 2675 break; 2676 } 2677 2678 cur_fill_num = 0; 2679 2680 if (ooa_hdr->flags & CTL_OOA_FLAG_ALL_LUNS) { 2681 STAILQ_FOREACH(lun, &softc->lun_list, links) { 2682 ctl_ioctl_fill_ooa(lun, &cur_fill_num, 2683 ooa_hdr, entries); 2684 } 2685 } else { 2686 lun = softc->ctl_luns[ooa_hdr->lun_num]; 2687 ctl_ioctl_fill_ooa(lun, &cur_fill_num, ooa_hdr, 2688 entries); 2689 } 2690 mtx_unlock(&softc->ctl_lock); 2691 2692 ooa_hdr->fill_num = min(cur_fill_num, ooa_hdr->alloc_num); 2693 ooa_hdr->fill_len = ooa_hdr->fill_num * 2694 sizeof(struct ctl_ooa_entry); 2695 retval = copyout(entries, ooa_hdr->entries, ooa_hdr->fill_len); 2696 if (retval != 0) { 2697 printf("%s: error copying out %d bytes for OOA dump\n", 2698 __func__, ooa_hdr->fill_len); 2699 } 2700 2701 getbinuptime(&ooa_hdr->cur_bt); 2702 2703 if (cur_fill_num > ooa_hdr->alloc_num) { 2704 ooa_hdr->dropped_num = cur_fill_num -ooa_hdr->alloc_num; 2705 ooa_hdr->status = CTL_OOA_NEED_MORE_SPACE; 2706 } else { 2707 ooa_hdr->dropped_num = 0; 2708 ooa_hdr->status = CTL_OOA_OK; 2709 } 2710 2711 free(entries, M_CTL); 2712 break; 2713 } 2714 case CTL_DELAY_IO: { 2715 struct ctl_io_delay_info *delay_info; 2716 2717 delay_info = (struct ctl_io_delay_info *)addr; 2718 2719#ifdef CTL_IO_DELAY 2720 mtx_lock(&softc->ctl_lock); 2721 2722 if ((delay_info->lun_id >= CTL_MAX_LUNS) 2723 || (softc->ctl_luns[delay_info->lun_id] == NULL)) { 2724 delay_info->status = CTL_DELAY_STATUS_INVALID_LUN; 2725 } else { 2726 lun = softc->ctl_luns[delay_info->lun_id]; 2727 mtx_lock(&lun->lun_lock); 2728 2729 delay_info->status = CTL_DELAY_STATUS_OK; 2730 2731 switch (delay_info->delay_type) { 2732 case CTL_DELAY_TYPE_CONT: 2733 break; 2734 case CTL_DELAY_TYPE_ONESHOT: 2735 break; 2736 default: 2737 delay_info->status = 2738 CTL_DELAY_STATUS_INVALID_TYPE; 2739 break; 2740 } 2741 2742 switch (delay_info->delay_loc) { 2743 case CTL_DELAY_LOC_DATAMOVE: 2744 lun->delay_info.datamove_type = 2745 delay_info->delay_type; 2746 lun->delay_info.datamove_delay = 2747 delay_info->delay_secs; 2748 break; 2749 case CTL_DELAY_LOC_DONE: 2750 lun->delay_info.done_type = 2751 delay_info->delay_type; 2752 lun->delay_info.done_delay = 2753 delay_info->delay_secs; 2754 break; 2755 default: 2756 delay_info->status = 2757 CTL_DELAY_STATUS_INVALID_LOC; 2758 break; 2759 } 2760 mtx_unlock(&lun->lun_lock); 2761 } 2762 2763 mtx_unlock(&softc->ctl_lock); 2764#else 2765 delay_info->status = CTL_DELAY_STATUS_NOT_IMPLEMENTED; 2766#endif /* CTL_IO_DELAY */ 2767 break; 2768 } 2769 case CTL_GETSTATS: { 2770 struct ctl_stats *stats; 2771 int i; 2772 2773 stats = (struct ctl_stats *)addr; 2774 2775 if ((sizeof(struct ctl_lun_io_stats) * softc->num_luns) > 2776 stats->alloc_len) { 2777 stats->status = CTL_SS_NEED_MORE_SPACE; 2778 stats->num_luns = softc->num_luns; 2779 break; 2780 } 2781 /* 2782 * XXX KDM no locking here. If the LUN list changes, 2783 * things can blow up. 2784 */ 2785 i = 0; 2786 STAILQ_FOREACH(lun, &softc->lun_list, links) { 2787 retval = copyout(&lun->stats, &stats->lun_stats[i++], 2788 sizeof(lun->stats)); 2789 if (retval != 0) 2790 break; 2791 } 2792 stats->num_luns = softc->num_luns; 2793 stats->fill_len = sizeof(struct ctl_lun_io_stats) * 2794 softc->num_luns; 2795 stats->status = CTL_SS_OK; 2796#ifdef CTL_TIME_IO 2797 stats->flags = CTL_STATS_FLAG_TIME_VALID; 2798#else 2799 stats->flags = CTL_STATS_FLAG_NONE; 2800#endif 2801 getnanouptime(&stats->timestamp); 2802 break; 2803 } 2804 case CTL_ERROR_INJECT: { 2805 struct ctl_error_desc *err_desc, *new_err_desc; 2806 2807 err_desc = (struct ctl_error_desc *)addr; 2808 2809 new_err_desc = malloc(sizeof(*new_err_desc), M_CTL, 2810 M_WAITOK | M_ZERO); 2811 bcopy(err_desc, new_err_desc, sizeof(*new_err_desc)); 2812 2813 mtx_lock(&softc->ctl_lock); 2814 lun = softc->ctl_luns[err_desc->lun_id]; 2815 if (lun == NULL) { 2816 mtx_unlock(&softc->ctl_lock); 2817 free(new_err_desc, M_CTL); 2818 printf("%s: CTL_ERROR_INJECT: invalid LUN %ju\n", 2819 __func__, (uintmax_t)err_desc->lun_id); 2820 retval = EINVAL; 2821 break; 2822 } 2823 mtx_lock(&lun->lun_lock); 2824 mtx_unlock(&softc->ctl_lock); 2825 2826 /* 2827 * We could do some checking here to verify the validity 2828 * of the request, but given the complexity of error 2829 * injection requests, the checking logic would be fairly 2830 * complex. 2831 * 2832 * For now, if the request is invalid, it just won't get 2833 * executed and might get deleted. 2834 */ 2835 STAILQ_INSERT_TAIL(&lun->error_list, new_err_desc, links); 2836 2837 /* 2838 * XXX KDM check to make sure the serial number is unique, 2839 * in case we somehow manage to wrap. That shouldn't 2840 * happen for a very long time, but it's the right thing to 2841 * do. 2842 */ 2843 new_err_desc->serial = lun->error_serial; 2844 err_desc->serial = lun->error_serial; 2845 lun->error_serial++; 2846 2847 mtx_unlock(&lun->lun_lock); 2848 break; 2849 } 2850 case CTL_ERROR_INJECT_DELETE: { 2851 struct ctl_error_desc *delete_desc, *desc, *desc2; 2852 int delete_done; 2853 2854 delete_desc = (struct ctl_error_desc *)addr; 2855 delete_done = 0; 2856 2857 mtx_lock(&softc->ctl_lock); 2858 lun = softc->ctl_luns[delete_desc->lun_id]; 2859 if (lun == NULL) { 2860 mtx_unlock(&softc->ctl_lock); 2861 printf("%s: CTL_ERROR_INJECT_DELETE: invalid LUN %ju\n", 2862 __func__, (uintmax_t)delete_desc->lun_id); 2863 retval = EINVAL; 2864 break; 2865 } 2866 mtx_lock(&lun->lun_lock); 2867 mtx_unlock(&softc->ctl_lock); 2868 STAILQ_FOREACH_SAFE(desc, &lun->error_list, links, desc2) { 2869 if (desc->serial != delete_desc->serial) 2870 continue; 2871 2872 STAILQ_REMOVE(&lun->error_list, desc, ctl_error_desc, 2873 links); 2874 free(desc, M_CTL); 2875 delete_done = 1; 2876 } 2877 mtx_unlock(&lun->lun_lock); 2878 if (delete_done == 0) { 2879 printf("%s: CTL_ERROR_INJECT_DELETE: can't find " 2880 "error serial %ju on LUN %u\n", __func__, 2881 delete_desc->serial, delete_desc->lun_id); 2882 retval = EINVAL; 2883 break; 2884 } 2885 break; 2886 } 2887 case CTL_DUMP_STRUCTS: { 2888 int i, j, k; 2889 struct ctl_port *port; 2890 struct ctl_frontend *fe; 2891 2892 mtx_lock(&softc->ctl_lock); 2893 printf("CTL Persistent Reservation information start:\n"); 2894 for (i = 0; i < CTL_MAX_LUNS; i++) { 2895 lun = softc->ctl_luns[i]; 2896 2897 if ((lun == NULL) 2898 || ((lun->flags & CTL_LUN_DISABLED) != 0)) 2899 continue; 2900 2901 for (j = 0; j < CTL_MAX_PORTS; j++) { 2902 if (lun->pr_keys[j] == NULL) 2903 continue; 2904 for (k = 0; k < CTL_MAX_INIT_PER_PORT; k++){ 2905 if (lun->pr_keys[j][k] == 0) 2906 continue; 2907 printf(" LUN %d port %d iid %d key " 2908 "%#jx\n", i, j, k, 2909 (uintmax_t)lun->pr_keys[j][k]); 2910 } 2911 } 2912 } 2913 printf("CTL Persistent Reservation information end\n"); 2914 printf("CTL Ports:\n"); 2915 STAILQ_FOREACH(port, &softc->port_list, links) { 2916 printf(" Port %d '%s' Frontend '%s' Type %u pp %d vp %d WWNN " 2917 "%#jx WWPN %#jx\n", port->targ_port, port->port_name, 2918 port->frontend->name, port->port_type, 2919 port->physical_port, port->virtual_port, 2920 (uintmax_t)port->wwnn, (uintmax_t)port->wwpn); 2921 for (j = 0; j < CTL_MAX_INIT_PER_PORT; j++) { 2922 if (port->wwpn_iid[j].in_use == 0 && 2923 port->wwpn_iid[j].wwpn == 0 && 2924 port->wwpn_iid[j].name == NULL) 2925 continue; 2926 2927 printf(" iid %u use %d WWPN %#jx '%s'\n", 2928 j, port->wwpn_iid[j].in_use, 2929 (uintmax_t)port->wwpn_iid[j].wwpn, 2930 port->wwpn_iid[j].name); 2931 } 2932 } 2933 printf("CTL Port information end\n"); 2934 mtx_unlock(&softc->ctl_lock); 2935 /* 2936 * XXX KDM calling this without a lock. We'd likely want 2937 * to drop the lock before calling the frontend's dump 2938 * routine anyway. 2939 */ 2940 printf("CTL Frontends:\n"); 2941 STAILQ_FOREACH(fe, &softc->fe_list, links) { 2942 printf(" Frontend '%s'\n", fe->name); 2943 if (fe->fe_dump != NULL) 2944 fe->fe_dump(); 2945 } 2946 printf("CTL Frontend information end\n"); 2947 break; 2948 } 2949 case CTL_LUN_REQ: { 2950 struct ctl_lun_req *lun_req; 2951 struct ctl_backend_driver *backend; 2952 2953 lun_req = (struct ctl_lun_req *)addr; 2954 2955 backend = ctl_backend_find(lun_req->backend); 2956 if (backend == NULL) { 2957 lun_req->status = CTL_LUN_ERROR; 2958 snprintf(lun_req->error_str, 2959 sizeof(lun_req->error_str), 2960 "Backend \"%s\" not found.", 2961 lun_req->backend); 2962 break; 2963 } 2964 if (lun_req->num_be_args > 0) { 2965 lun_req->kern_be_args = ctl_copyin_args( 2966 lun_req->num_be_args, 2967 lun_req->be_args, 2968 lun_req->error_str, 2969 sizeof(lun_req->error_str)); 2970 if (lun_req->kern_be_args == NULL) { 2971 lun_req->status = CTL_LUN_ERROR; 2972 break; 2973 } 2974 } 2975 2976 retval = backend->ioctl(dev, cmd, addr, flag, td); 2977 2978 if (lun_req->num_be_args > 0) { 2979 ctl_copyout_args(lun_req->num_be_args, 2980 lun_req->kern_be_args); 2981 ctl_free_args(lun_req->num_be_args, 2982 lun_req->kern_be_args); 2983 } 2984 break; 2985 } 2986 case CTL_LUN_LIST: { 2987 struct sbuf *sb; 2988 struct ctl_lun_list *list; 2989 struct ctl_option *opt; 2990 2991 list = (struct ctl_lun_list *)addr; 2992 2993 /* 2994 * Allocate a fixed length sbuf here, based on the length 2995 * of the user's buffer. We could allocate an auto-extending 2996 * buffer, and then tell the user how much larger our 2997 * amount of data is than his buffer, but that presents 2998 * some problems: 2999 * 3000 * 1. The sbuf(9) routines use a blocking malloc, and so 3001 * we can't hold a lock while calling them with an 3002 * auto-extending buffer. 3003 * 3004 * 2. There is not currently a LUN reference counting 3005 * mechanism, outside of outstanding transactions on 3006 * the LUN's OOA queue. So a LUN could go away on us 3007 * while we're getting the LUN number, backend-specific 3008 * information, etc. Thus, given the way things 3009 * currently work, we need to hold the CTL lock while 3010 * grabbing LUN information. 3011 * 3012 * So, from the user's standpoint, the best thing to do is 3013 * allocate what he thinks is a reasonable buffer length, 3014 * and then if he gets a CTL_LUN_LIST_NEED_MORE_SPACE error, 3015 * double the buffer length and try again. (And repeat 3016 * that until he succeeds.) 3017 */ 3018 sb = sbuf_new(NULL, NULL, list->alloc_len, SBUF_FIXEDLEN); 3019 if (sb == NULL) { 3020 list->status = CTL_LUN_LIST_ERROR; 3021 snprintf(list->error_str, sizeof(list->error_str), 3022 "Unable to allocate %d bytes for LUN list", 3023 list->alloc_len); 3024 break; 3025 } 3026 3027 sbuf_printf(sb, "<ctllunlist>\n"); 3028 3029 mtx_lock(&softc->ctl_lock); 3030 STAILQ_FOREACH(lun, &softc->lun_list, links) { 3031 mtx_lock(&lun->lun_lock); 3032 retval = sbuf_printf(sb, "<lun id=\"%ju\">\n", 3033 (uintmax_t)lun->lun); 3034 3035 /* 3036 * Bail out as soon as we see that we've overfilled 3037 * the buffer. 3038 */ 3039 if (retval != 0) 3040 break; 3041 3042 retval = sbuf_printf(sb, "\t<backend_type>%s" 3043 "</backend_type>\n", 3044 (lun->backend == NULL) ? "none" : 3045 lun->backend->name); 3046 3047 if (retval != 0) 3048 break; 3049 3050 retval = sbuf_printf(sb, "\t<lun_type>%d</lun_type>\n", 3051 lun->be_lun->lun_type); 3052 3053 if (retval != 0) 3054 break; 3055 3056 if (lun->backend == NULL) { 3057 retval = sbuf_printf(sb, "</lun>\n"); 3058 if (retval != 0) 3059 break; 3060 continue; 3061 } 3062 3063 retval = sbuf_printf(sb, "\t<size>%ju</size>\n", 3064 (lun->be_lun->maxlba > 0) ? 3065 lun->be_lun->maxlba + 1 : 0); 3066 3067 if (retval != 0) 3068 break; 3069 3070 retval = sbuf_printf(sb, "\t<blocksize>%u</blocksize>\n", 3071 lun->be_lun->blocksize); 3072 3073 if (retval != 0) 3074 break; 3075 3076 retval = sbuf_printf(sb, "\t<serial_number>"); 3077 3078 if (retval != 0) 3079 break; 3080 3081 retval = ctl_sbuf_printf_esc(sb, 3082 lun->be_lun->serial_num, 3083 sizeof(lun->be_lun->serial_num)); 3084 3085 if (retval != 0) 3086 break; 3087 3088 retval = sbuf_printf(sb, "</serial_number>\n"); 3089 3090 if (retval != 0) 3091 break; 3092 3093 retval = sbuf_printf(sb, "\t<device_id>"); 3094 3095 if (retval != 0) 3096 break; 3097 3098 retval = ctl_sbuf_printf_esc(sb, 3099 lun->be_lun->device_id, 3100 sizeof(lun->be_lun->device_id)); 3101 3102 if (retval != 0) 3103 break; 3104 3105 retval = sbuf_printf(sb, "</device_id>\n"); 3106 3107 if (retval != 0) 3108 break; 3109 3110 if (lun->backend->lun_info != NULL) { 3111 retval = lun->backend->lun_info(lun->be_lun->be_lun, sb); 3112 if (retval != 0) 3113 break; 3114 } 3115 STAILQ_FOREACH(opt, &lun->be_lun->options, links) { 3116 retval = sbuf_printf(sb, "\t<%s>%s</%s>\n", 3117 opt->name, opt->value, opt->name); 3118 if (retval != 0) 3119 break; 3120 } 3121 3122 retval = sbuf_printf(sb, "</lun>\n"); 3123 3124 if (retval != 0) 3125 break; 3126 mtx_unlock(&lun->lun_lock); 3127 } 3128 if (lun != NULL) 3129 mtx_unlock(&lun->lun_lock); 3130 mtx_unlock(&softc->ctl_lock); 3131 3132 if ((retval != 0) 3133 || ((retval = sbuf_printf(sb, "</ctllunlist>\n")) != 0)) { 3134 retval = 0; 3135 sbuf_delete(sb); 3136 list->status = CTL_LUN_LIST_NEED_MORE_SPACE; 3137 snprintf(list->error_str, sizeof(list->error_str), 3138 "Out of space, %d bytes is too small", 3139 list->alloc_len); 3140 break; 3141 } 3142 3143 sbuf_finish(sb); 3144 3145 retval = copyout(sbuf_data(sb), list->lun_xml, 3146 sbuf_len(sb) + 1); 3147 3148 list->fill_len = sbuf_len(sb) + 1; 3149 list->status = CTL_LUN_LIST_OK; 3150 sbuf_delete(sb); 3151 break; 3152 } 3153 case CTL_ISCSI: { 3154 struct ctl_iscsi *ci; 3155 struct ctl_frontend *fe; 3156 3157 ci = (struct ctl_iscsi *)addr; 3158 3159 fe = ctl_frontend_find("iscsi"); 3160 if (fe == NULL) { 3161 ci->status = CTL_ISCSI_ERROR; 3162 snprintf(ci->error_str, sizeof(ci->error_str), 3163 "Frontend \"iscsi\" not found."); 3164 break; 3165 } 3166 3167 retval = fe->ioctl(dev, cmd, addr, flag, td); 3168 break; 3169 } 3170 case CTL_PORT_REQ: { 3171 struct ctl_req *req; 3172 struct ctl_frontend *fe; 3173 3174 req = (struct ctl_req *)addr; 3175 3176 fe = ctl_frontend_find(req->driver); 3177 if (fe == NULL) { 3178 req->status = CTL_LUN_ERROR; 3179 snprintf(req->error_str, sizeof(req->error_str), 3180 "Frontend \"%s\" not found.", req->driver); 3181 break; 3182 } 3183 if (req->num_args > 0) { 3184 req->kern_args = ctl_copyin_args(req->num_args, 3185 req->args, req->error_str, sizeof(req->error_str)); 3186 if (req->kern_args == NULL) { 3187 req->status = CTL_LUN_ERROR; 3188 break; 3189 } 3190 } 3191 3192 if (fe->ioctl) 3193 retval = fe->ioctl(dev, cmd, addr, flag, td); 3194 else 3195 retval = ENODEV; 3196 3197 if (req->num_args > 0) { 3198 ctl_copyout_args(req->num_args, req->kern_args); 3199 ctl_free_args(req->num_args, req->kern_args); 3200 } 3201 break; 3202 } 3203 case CTL_PORT_LIST: { 3204 struct sbuf *sb; 3205 struct ctl_port *port; 3206 struct ctl_lun_list *list; 3207 struct ctl_option *opt; 3208 int j; 3209 uint32_t plun; 3210 3211 list = (struct ctl_lun_list *)addr; 3212 3213 sb = sbuf_new(NULL, NULL, list->alloc_len, SBUF_FIXEDLEN); 3214 if (sb == NULL) { 3215 list->status = CTL_LUN_LIST_ERROR; 3216 snprintf(list->error_str, sizeof(list->error_str), 3217 "Unable to allocate %d bytes for LUN list", 3218 list->alloc_len); 3219 break; 3220 } 3221 3222 sbuf_printf(sb, "<ctlportlist>\n"); 3223 3224 mtx_lock(&softc->ctl_lock); 3225 STAILQ_FOREACH(port, &softc->port_list, links) { 3226 retval = sbuf_printf(sb, "<targ_port id=\"%ju\">\n", 3227 (uintmax_t)port->targ_port); 3228 3229 /* 3230 * Bail out as soon as we see that we've overfilled 3231 * the buffer. 3232 */ 3233 if (retval != 0) 3234 break; 3235 3236 retval = sbuf_printf(sb, "\t<frontend_type>%s" 3237 "</frontend_type>\n", port->frontend->name); 3238 if (retval != 0) 3239 break; 3240 3241 retval = sbuf_printf(sb, "\t<port_type>%d</port_type>\n", 3242 port->port_type); 3243 if (retval != 0) 3244 break; 3245 3246 retval = sbuf_printf(sb, "\t<online>%s</online>\n", 3247 (port->status & CTL_PORT_STATUS_ONLINE) ? "YES" : "NO"); 3248 if (retval != 0) 3249 break; 3250 3251 retval = sbuf_printf(sb, "\t<port_name>%s</port_name>\n", 3252 port->port_name); 3253 if (retval != 0) 3254 break; 3255 3256 retval = sbuf_printf(sb, "\t<physical_port>%d</physical_port>\n", 3257 port->physical_port); 3258 if (retval != 0) 3259 break; 3260 3261 retval = sbuf_printf(sb, "\t<virtual_port>%d</virtual_port>\n", 3262 port->virtual_port); 3263 if (retval != 0) 3264 break; 3265 3266 if (port->target_devid != NULL) { 3267 sbuf_printf(sb, "\t<target>"); 3268 ctl_id_sbuf(port->target_devid, sb); 3269 sbuf_printf(sb, "</target>\n"); 3270 } 3271 3272 if (port->port_devid != NULL) { 3273 sbuf_printf(sb, "\t<port>"); 3274 ctl_id_sbuf(port->port_devid, sb); 3275 sbuf_printf(sb, "</port>\n"); 3276 } 3277 3278 if (port->port_info != NULL) { 3279 retval = port->port_info(port->onoff_arg, sb); 3280 if (retval != 0) 3281 break; 3282 } 3283 STAILQ_FOREACH(opt, &port->options, links) { 3284 retval = sbuf_printf(sb, "\t<%s>%s</%s>\n", 3285 opt->name, opt->value, opt->name); 3286 if (retval != 0) 3287 break; 3288 } 3289 3290 if (port->lun_map != NULL) { 3291 sbuf_printf(sb, "\t<lun_map>on</lun_map>\n"); 3292 for (j = 0; j < CTL_MAX_LUNS; j++) { 3293 plun = ctl_lun_map_from_port(port, j); 3294 if (plun >= CTL_MAX_LUNS) 3295 continue; 3296 sbuf_printf(sb, 3297 "\t<lun id=\"%u\">%u</lun>\n", 3298 j, plun); 3299 } 3300 } 3301 3302 for (j = 0; j < CTL_MAX_INIT_PER_PORT; j++) { 3303 if (port->wwpn_iid[j].in_use == 0 || 3304 (port->wwpn_iid[j].wwpn == 0 && 3305 port->wwpn_iid[j].name == NULL)) 3306 continue; 3307 3308 if (port->wwpn_iid[j].name != NULL) 3309 retval = sbuf_printf(sb, 3310 "\t<initiator id=\"%u\">%s</initiator>\n", 3311 j, port->wwpn_iid[j].name); 3312 else 3313 retval = sbuf_printf(sb, 3314 "\t<initiator id=\"%u\">naa.%08jx</initiator>\n", 3315 j, port->wwpn_iid[j].wwpn); 3316 if (retval != 0) 3317 break; 3318 } 3319 if (retval != 0) 3320 break; 3321 3322 retval = sbuf_printf(sb, "</targ_port>\n"); 3323 if (retval != 0) 3324 break; 3325 } 3326 mtx_unlock(&softc->ctl_lock); 3327 3328 if ((retval != 0) 3329 || ((retval = sbuf_printf(sb, "</ctlportlist>\n")) != 0)) { 3330 retval = 0; 3331 sbuf_delete(sb); 3332 list->status = CTL_LUN_LIST_NEED_MORE_SPACE; 3333 snprintf(list->error_str, sizeof(list->error_str), 3334 "Out of space, %d bytes is too small", 3335 list->alloc_len); 3336 break; 3337 } 3338 3339 sbuf_finish(sb); 3340 3341 retval = copyout(sbuf_data(sb), list->lun_xml, 3342 sbuf_len(sb) + 1); 3343 3344 list->fill_len = sbuf_len(sb) + 1; 3345 list->status = CTL_LUN_LIST_OK; 3346 sbuf_delete(sb); 3347 break; 3348 } 3349 case CTL_LUN_MAP: { 3350 struct ctl_lun_map *lm = (struct ctl_lun_map *)addr; 3351 struct ctl_port *port; 3352 3353 mtx_lock(&softc->ctl_lock); 3354 if (lm->port < softc->port_min || 3355 lm->port >= softc->port_max || 3356 (port = softc->ctl_ports[lm->port]) == NULL) { 3357 mtx_unlock(&softc->ctl_lock); 3358 return (ENXIO); 3359 } 3360 if (port->status & CTL_PORT_STATUS_ONLINE) { 3361 STAILQ_FOREACH(lun, &softc->lun_list, links) { 3362 if (ctl_lun_map_to_port(port, lun->lun) >= 3363 CTL_MAX_LUNS) 3364 continue; 3365 mtx_lock(&lun->lun_lock); 3366 ctl_est_ua_port(lun, lm->port, -1, 3367 CTL_UA_LUN_CHANGE); 3368 mtx_unlock(&lun->lun_lock); 3369 } 3370 } 3371 mtx_unlock(&softc->ctl_lock); // XXX: port_enable sleeps 3372 if (lm->plun < CTL_MAX_LUNS) { 3373 if (lm->lun == UINT32_MAX) 3374 retval = ctl_lun_map_unset(port, lm->plun); 3375 else if (lm->lun < CTL_MAX_LUNS && 3376 softc->ctl_luns[lm->lun] != NULL) 3377 retval = ctl_lun_map_set(port, lm->plun, lm->lun); 3378 else 3379 return (ENXIO); 3380 } else if (lm->plun == UINT32_MAX) { 3381 if (lm->lun == UINT32_MAX) 3382 retval = ctl_lun_map_deinit(port); 3383 else 3384 retval = ctl_lun_map_init(port); 3385 } else 3386 return (ENXIO); 3387 if (port->status & CTL_PORT_STATUS_ONLINE) 3388 ctl_isc_announce_port(port); 3389 break; 3390 } 3391 default: { 3392 /* XXX KDM should we fix this? */ 3393#if 0 3394 struct ctl_backend_driver *backend; 3395 unsigned int type; 3396 int found; 3397 3398 found = 0; 3399 3400 /* 3401 * We encode the backend type as the ioctl type for backend 3402 * ioctls. So parse it out here, and then search for a 3403 * backend of this type. 3404 */ 3405 type = _IOC_TYPE(cmd); 3406 3407 STAILQ_FOREACH(backend, &softc->be_list, links) { 3408 if (backend->type == type) { 3409 found = 1; 3410 break; 3411 } 3412 } 3413 if (found == 0) { 3414 printf("ctl: unknown ioctl command %#lx or backend " 3415 "%d\n", cmd, type); 3416 retval = EINVAL; 3417 break; 3418 } 3419 retval = backend->ioctl(dev, cmd, addr, flag, td); 3420#endif 3421 retval = ENOTTY; 3422 break; 3423 } 3424 } 3425 return (retval); 3426} 3427 3428uint32_t 3429ctl_get_initindex(struct ctl_nexus *nexus) 3430{ 3431 return (nexus->initid + (nexus->targ_port * CTL_MAX_INIT_PER_PORT)); 3432} 3433 3434int 3435ctl_lun_map_init(struct ctl_port *port) 3436{ 3437 struct ctl_softc *softc = port->ctl_softc; 3438 struct ctl_lun *lun; 3439 uint32_t i; 3440 3441 if (port->lun_map == NULL) 3442 port->lun_map = malloc(sizeof(uint32_t) * CTL_MAX_LUNS, 3443 M_CTL, M_NOWAIT); 3444 if (port->lun_map == NULL) 3445 return (ENOMEM); 3446 for (i = 0; i < CTL_MAX_LUNS; i++) 3447 port->lun_map[i] = UINT32_MAX; 3448 if (port->status & CTL_PORT_STATUS_ONLINE) { 3449 if (port->lun_disable != NULL) { 3450 STAILQ_FOREACH(lun, &softc->lun_list, links) 3451 port->lun_disable(port->targ_lun_arg, lun->lun); 3452 } 3453 ctl_isc_announce_port(port); 3454 } 3455 return (0); 3456} 3457 3458int 3459ctl_lun_map_deinit(struct ctl_port *port) 3460{ 3461 struct ctl_softc *softc = port->ctl_softc; 3462 struct ctl_lun *lun; 3463 3464 if (port->lun_map == NULL) 3465 return (0); 3466 free(port->lun_map, M_CTL); 3467 port->lun_map = NULL; 3468 if (port->status & CTL_PORT_STATUS_ONLINE) { 3469 if (port->lun_enable != NULL) { 3470 STAILQ_FOREACH(lun, &softc->lun_list, links) 3471 port->lun_enable(port->targ_lun_arg, lun->lun); 3472 } 3473 ctl_isc_announce_port(port); 3474 } 3475 return (0); 3476} 3477 3478int 3479ctl_lun_map_set(struct ctl_port *port, uint32_t plun, uint32_t glun) 3480{ 3481 int status; 3482 uint32_t old; 3483 3484 if (port->lun_map == NULL) { 3485 status = ctl_lun_map_init(port); 3486 if (status != 0) 3487 return (status); 3488 } 3489 old = port->lun_map[plun]; 3490 port->lun_map[plun] = glun; 3491 if ((port->status & CTL_PORT_STATUS_ONLINE) && old >= CTL_MAX_LUNS) { 3492 if (port->lun_enable != NULL) 3493 port->lun_enable(port->targ_lun_arg, plun); 3494 ctl_isc_announce_port(port); 3495 } 3496 return (0); 3497} 3498 3499int 3500ctl_lun_map_unset(struct ctl_port *port, uint32_t plun) 3501{ 3502 uint32_t old; 3503 3504 if (port->lun_map == NULL) 3505 return (0); 3506 old = port->lun_map[plun]; 3507 port->lun_map[plun] = UINT32_MAX; 3508 if ((port->status & CTL_PORT_STATUS_ONLINE) && old < CTL_MAX_LUNS) { 3509 if (port->lun_disable != NULL) 3510 port->lun_disable(port->targ_lun_arg, plun); 3511 ctl_isc_announce_port(port); 3512 } 3513 return (0); 3514} 3515 3516uint32_t 3517ctl_lun_map_from_port(struct ctl_port *port, uint32_t lun_id) 3518{ 3519 3520 if (port == NULL) 3521 return (UINT32_MAX); 3522 if (port->lun_map == NULL || lun_id >= CTL_MAX_LUNS) 3523 return (lun_id); 3524 return (port->lun_map[lun_id]); 3525} 3526 3527uint32_t 3528ctl_lun_map_to_port(struct ctl_port *port, uint32_t lun_id) 3529{ 3530 uint32_t i; 3531 3532 if (port == NULL) 3533 return (UINT32_MAX); 3534 if (port->lun_map == NULL) 3535 return (lun_id); 3536 for (i = 0; i < CTL_MAX_LUNS; i++) { 3537 if (port->lun_map[i] == lun_id) 3538 return (i); 3539 } 3540 return (UINT32_MAX); 3541} 3542 3543static struct ctl_port * 3544ctl_io_port(struct ctl_io_hdr *io_hdr) 3545{ 3546 3547 return (control_softc->ctl_ports[io_hdr->nexus.targ_port]); 3548} 3549 3550int 3551ctl_ffz(uint32_t *mask, uint32_t first, uint32_t last) 3552{ 3553 int i; 3554 3555 for (i = first; i < last; i++) { 3556 if ((mask[i / 32] & (1 << (i % 32))) == 0) 3557 return (i); 3558 } 3559 return (-1); 3560} 3561 3562int 3563ctl_set_mask(uint32_t *mask, uint32_t bit) 3564{ 3565 uint32_t chunk, piece; 3566 3567 chunk = bit >> 5; 3568 piece = bit % (sizeof(uint32_t) * 8); 3569 3570 if ((mask[chunk] & (1 << piece)) != 0) 3571 return (-1); 3572 else 3573 mask[chunk] |= (1 << piece); 3574 3575 return (0); 3576} 3577 3578int 3579ctl_clear_mask(uint32_t *mask, uint32_t bit) 3580{ 3581 uint32_t chunk, piece; 3582 3583 chunk = bit >> 5; 3584 piece = bit % (sizeof(uint32_t) * 8); 3585 3586 if ((mask[chunk] & (1 << piece)) == 0) 3587 return (-1); 3588 else 3589 mask[chunk] &= ~(1 << piece); 3590 3591 return (0); 3592} 3593 3594int 3595ctl_is_set(uint32_t *mask, uint32_t bit) 3596{ 3597 uint32_t chunk, piece; 3598 3599 chunk = bit >> 5; 3600 piece = bit % (sizeof(uint32_t) * 8); 3601 3602 if ((mask[chunk] & (1 << piece)) == 0) 3603 return (0); 3604 else 3605 return (1); 3606} 3607 3608static uint64_t 3609ctl_get_prkey(struct ctl_lun *lun, uint32_t residx) 3610{ 3611 uint64_t *t; 3612 3613 t = lun->pr_keys[residx/CTL_MAX_INIT_PER_PORT]; 3614 if (t == NULL) 3615 return (0); 3616 return (t[residx % CTL_MAX_INIT_PER_PORT]); 3617} 3618 3619static void 3620ctl_clr_prkey(struct ctl_lun *lun, uint32_t residx) 3621{ 3622 uint64_t *t; 3623 3624 t = lun->pr_keys[residx/CTL_MAX_INIT_PER_PORT]; 3625 if (t == NULL) 3626 return; 3627 t[residx % CTL_MAX_INIT_PER_PORT] = 0; 3628} 3629 3630static void 3631ctl_alloc_prkey(struct ctl_lun *lun, uint32_t residx) 3632{ 3633 uint64_t *p; 3634 u_int i; 3635 3636 i = residx/CTL_MAX_INIT_PER_PORT; 3637 if (lun->pr_keys[i] != NULL) 3638 return; 3639 mtx_unlock(&lun->lun_lock); 3640 p = malloc(sizeof(uint64_t) * CTL_MAX_INIT_PER_PORT, M_CTL, 3641 M_WAITOK | M_ZERO); 3642 mtx_lock(&lun->lun_lock); 3643 if (lun->pr_keys[i] == NULL) 3644 lun->pr_keys[i] = p; 3645 else 3646 free(p, M_CTL); 3647} 3648 3649static void 3650ctl_set_prkey(struct ctl_lun *lun, uint32_t residx, uint64_t key) 3651{ 3652 uint64_t *t; 3653 3654 t = lun->pr_keys[residx/CTL_MAX_INIT_PER_PORT]; 3655 KASSERT(t != NULL, ("prkey %d is not allocated", residx)); 3656 t[residx % CTL_MAX_INIT_PER_PORT] = key; 3657} 3658 3659/* 3660 * ctl_softc, pool_name, total_ctl_io are passed in. 3661 * npool is passed out. 3662 */ 3663int 3664ctl_pool_create(struct ctl_softc *ctl_softc, const char *pool_name, 3665 uint32_t total_ctl_io, void **npool) 3666{ 3667#ifdef IO_POOLS 3668 struct ctl_io_pool *pool; 3669 3670 pool = (struct ctl_io_pool *)malloc(sizeof(*pool), M_CTL, 3671 M_NOWAIT | M_ZERO); 3672 if (pool == NULL) 3673 return (ENOMEM); 3674 3675 snprintf(pool->name, sizeof(pool->name), "CTL IO %s", pool_name); 3676 pool->ctl_softc = ctl_softc; 3677 pool->zone = uma_zsecond_create(pool->name, NULL, 3678 NULL, NULL, NULL, ctl_softc->io_zone); 3679 /* uma_prealloc(pool->zone, total_ctl_io); */ 3680 3681 *npool = pool; 3682#else 3683 *npool = ctl_softc->io_zone; 3684#endif 3685 return (0); 3686} 3687 3688void 3689ctl_pool_free(struct ctl_io_pool *pool) 3690{ 3691 3692 if (pool == NULL) 3693 return; 3694 3695#ifdef IO_POOLS 3696 uma_zdestroy(pool->zone); 3697 free(pool, M_CTL); 3698#endif 3699} 3700 3701union ctl_io * 3702ctl_alloc_io(void *pool_ref) 3703{ 3704 union ctl_io *io; 3705#ifdef IO_POOLS 3706 struct ctl_io_pool *pool = (struct ctl_io_pool *)pool_ref; 3707 3708 io = uma_zalloc(pool->zone, M_WAITOK); 3709#else 3710 io = uma_zalloc((uma_zone_t)pool_ref, M_WAITOK); 3711#endif 3712 if (io != NULL) 3713 io->io_hdr.pool = pool_ref; 3714 return (io); 3715} 3716 3717union ctl_io * 3718ctl_alloc_io_nowait(void *pool_ref) 3719{ 3720 union ctl_io *io; 3721#ifdef IO_POOLS 3722 struct ctl_io_pool *pool = (struct ctl_io_pool *)pool_ref; 3723 3724 io = uma_zalloc(pool->zone, M_NOWAIT); 3725#else 3726 io = uma_zalloc((uma_zone_t)pool_ref, M_NOWAIT); 3727#endif 3728 if (io != NULL) 3729 io->io_hdr.pool = pool_ref; 3730 return (io); 3731} 3732 3733void 3734ctl_free_io(union ctl_io *io) 3735{ 3736#ifdef IO_POOLS 3737 struct ctl_io_pool *pool; 3738#endif 3739 3740 if (io == NULL) 3741 return; 3742 3743#ifdef IO_POOLS 3744 pool = (struct ctl_io_pool *)io->io_hdr.pool; 3745 uma_zfree(pool->zone, io); 3746#else 3747 uma_zfree((uma_zone_t)io->io_hdr.pool, io); 3748#endif 3749} 3750 3751void 3752ctl_zero_io(union ctl_io *io) 3753{ 3754 void *pool_ref; 3755 3756 if (io == NULL) 3757 return; 3758 3759 /* 3760 * May need to preserve linked list pointers at some point too. 3761 */ 3762 pool_ref = io->io_hdr.pool; 3763 memset(io, 0, sizeof(*io)); 3764 io->io_hdr.pool = pool_ref; 3765} 3766 3767int 3768ctl_expand_number(const char *buf, uint64_t *num) 3769{ 3770 char *endptr; 3771 uint64_t number; 3772 unsigned shift; 3773 3774 number = strtoq(buf, &endptr, 0); 3775 3776 switch (tolower((unsigned char)*endptr)) { 3777 case 'e': 3778 shift = 60; 3779 break; 3780 case 'p': 3781 shift = 50; 3782 break; 3783 case 't': 3784 shift = 40; 3785 break; 3786 case 'g': 3787 shift = 30; 3788 break; 3789 case 'm': 3790 shift = 20; 3791 break; 3792 case 'k': 3793 shift = 10; 3794 break; 3795 case 'b': 3796 case '\0': /* No unit. */ 3797 *num = number; 3798 return (0); 3799 default: 3800 /* Unrecognized unit. */ 3801 return (-1); 3802 } 3803 3804 if ((number << shift) >> shift != number) { 3805 /* Overflow */ 3806 return (-1); 3807 } 3808 *num = number << shift; 3809 return (0); 3810} 3811 3812 3813/* 3814 * This routine could be used in the future to load default and/or saved 3815 * mode page parameters for a particuar lun. 3816 */ 3817static int 3818ctl_init_page_index(struct ctl_lun *lun) 3819{ 3820 int i, page_code; 3821 struct ctl_page_index *page_index; 3822 const char *value; 3823 uint64_t ival; 3824 3825 memcpy(&lun->mode_pages.index, page_index_template, 3826 sizeof(page_index_template)); 3827 3828 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 3829 3830 page_index = &lun->mode_pages.index[i]; 3831 if (lun->be_lun->lun_type == T_DIRECT && 3832 (page_index->page_flags & CTL_PAGE_FLAG_DIRECT) == 0) 3833 continue; 3834 if (lun->be_lun->lun_type == T_PROCESSOR && 3835 (page_index->page_flags & CTL_PAGE_FLAG_PROC) == 0) 3836 continue; 3837 if (lun->be_lun->lun_type == T_CDROM && 3838 (page_index->page_flags & CTL_PAGE_FLAG_CDROM) == 0) 3839 continue; 3840 3841 page_code = page_index->page_code & SMPH_PC_MASK; 3842 switch (page_code) { 3843 case SMS_RW_ERROR_RECOVERY_PAGE: { 3844 KASSERT(page_index->subpage == SMS_SUBPAGE_PAGE_0, 3845 ("subpage %#x for page %#x is incorrect!", 3846 page_index->subpage, page_code)); 3847 memcpy(&lun->mode_pages.rw_er_page[CTL_PAGE_CURRENT], 3848 &rw_er_page_default, 3849 sizeof(rw_er_page_default)); 3850 memcpy(&lun->mode_pages.rw_er_page[CTL_PAGE_CHANGEABLE], 3851 &rw_er_page_changeable, 3852 sizeof(rw_er_page_changeable)); 3853 memcpy(&lun->mode_pages.rw_er_page[CTL_PAGE_DEFAULT], 3854 &rw_er_page_default, 3855 sizeof(rw_er_page_default)); 3856 memcpy(&lun->mode_pages.rw_er_page[CTL_PAGE_SAVED], 3857 &rw_er_page_default, 3858 sizeof(rw_er_page_default)); 3859 page_index->page_data = 3860 (uint8_t *)lun->mode_pages.rw_er_page; 3861 break; 3862 } 3863 case SMS_FORMAT_DEVICE_PAGE: { 3864 struct scsi_format_page *format_page; 3865 3866 KASSERT(page_index->subpage == SMS_SUBPAGE_PAGE_0, 3867 ("subpage %#x for page %#x is incorrect!", 3868 page_index->subpage, page_code)); 3869 3870 /* 3871 * Sectors per track are set above. Bytes per 3872 * sector need to be set here on a per-LUN basis. 3873 */ 3874 memcpy(&lun->mode_pages.format_page[CTL_PAGE_CURRENT], 3875 &format_page_default, 3876 sizeof(format_page_default)); 3877 memcpy(&lun->mode_pages.format_page[ 3878 CTL_PAGE_CHANGEABLE], &format_page_changeable, 3879 sizeof(format_page_changeable)); 3880 memcpy(&lun->mode_pages.format_page[CTL_PAGE_DEFAULT], 3881 &format_page_default, 3882 sizeof(format_page_default)); 3883 memcpy(&lun->mode_pages.format_page[CTL_PAGE_SAVED], 3884 &format_page_default, 3885 sizeof(format_page_default)); 3886 3887 format_page = &lun->mode_pages.format_page[ 3888 CTL_PAGE_CURRENT]; 3889 scsi_ulto2b(lun->be_lun->blocksize, 3890 format_page->bytes_per_sector); 3891 3892 format_page = &lun->mode_pages.format_page[ 3893 CTL_PAGE_DEFAULT]; 3894 scsi_ulto2b(lun->be_lun->blocksize, 3895 format_page->bytes_per_sector); 3896 3897 format_page = &lun->mode_pages.format_page[ 3898 CTL_PAGE_SAVED]; 3899 scsi_ulto2b(lun->be_lun->blocksize, 3900 format_page->bytes_per_sector); 3901 3902 page_index->page_data = 3903 (uint8_t *)lun->mode_pages.format_page; 3904 break; 3905 } 3906 case SMS_RIGID_DISK_PAGE: { 3907 struct scsi_rigid_disk_page *rigid_disk_page; 3908 uint32_t sectors_per_cylinder; 3909 uint64_t cylinders; 3910#ifndef __XSCALE__ 3911 int shift; 3912#endif /* !__XSCALE__ */ 3913 3914 KASSERT(page_index->subpage == SMS_SUBPAGE_PAGE_0, 3915 ("subpage %#x for page %#x is incorrect!", 3916 page_index->subpage, page_code)); 3917 3918 /* 3919 * Rotation rate and sectors per track are set 3920 * above. We calculate the cylinders here based on 3921 * capacity. Due to the number of heads and 3922 * sectors per track we're using, smaller arrays 3923 * may turn out to have 0 cylinders. Linux and 3924 * FreeBSD don't pay attention to these mode pages 3925 * to figure out capacity, but Solaris does. It 3926 * seems to deal with 0 cylinders just fine, and 3927 * works out a fake geometry based on the capacity. 3928 */ 3929 memcpy(&lun->mode_pages.rigid_disk_page[ 3930 CTL_PAGE_DEFAULT], &rigid_disk_page_default, 3931 sizeof(rigid_disk_page_default)); 3932 memcpy(&lun->mode_pages.rigid_disk_page[ 3933 CTL_PAGE_CHANGEABLE],&rigid_disk_page_changeable, 3934 sizeof(rigid_disk_page_changeable)); 3935 3936 sectors_per_cylinder = CTL_DEFAULT_SECTORS_PER_TRACK * 3937 CTL_DEFAULT_HEADS; 3938 3939 /* 3940 * The divide method here will be more accurate, 3941 * probably, but results in floating point being 3942 * used in the kernel on i386 (__udivdi3()). On the 3943 * XScale, though, __udivdi3() is implemented in 3944 * software. 3945 * 3946 * The shift method for cylinder calculation is 3947 * accurate if sectors_per_cylinder is a power of 3948 * 2. Otherwise it might be slightly off -- you 3949 * might have a bit of a truncation problem. 3950 */ 3951#ifdef __XSCALE__ 3952 cylinders = (lun->be_lun->maxlba + 1) / 3953 sectors_per_cylinder; 3954#else 3955 for (shift = 31; shift > 0; shift--) { 3956 if (sectors_per_cylinder & (1 << shift)) 3957 break; 3958 } 3959 cylinders = (lun->be_lun->maxlba + 1) >> shift; 3960#endif 3961 3962 /* 3963 * We've basically got 3 bytes, or 24 bits for the 3964 * cylinder size in the mode page. If we're over, 3965 * just round down to 2^24. 3966 */ 3967 if (cylinders > 0xffffff) 3968 cylinders = 0xffffff; 3969 3970 rigid_disk_page = &lun->mode_pages.rigid_disk_page[ 3971 CTL_PAGE_DEFAULT]; 3972 scsi_ulto3b(cylinders, rigid_disk_page->cylinders); 3973 3974 if ((value = ctl_get_opt(&lun->be_lun->options, 3975 "rpm")) != NULL) { 3976 scsi_ulto2b(strtol(value, NULL, 0), 3977 rigid_disk_page->rotation_rate); 3978 } 3979 3980 memcpy(&lun->mode_pages.rigid_disk_page[CTL_PAGE_CURRENT], 3981 &lun->mode_pages.rigid_disk_page[CTL_PAGE_DEFAULT], 3982 sizeof(rigid_disk_page_default)); 3983 memcpy(&lun->mode_pages.rigid_disk_page[CTL_PAGE_SAVED], 3984 &lun->mode_pages.rigid_disk_page[CTL_PAGE_DEFAULT], 3985 sizeof(rigid_disk_page_default)); 3986 3987 page_index->page_data = 3988 (uint8_t *)lun->mode_pages.rigid_disk_page; 3989 break; 3990 } 3991 case SMS_CACHING_PAGE: { 3992 struct scsi_caching_page *caching_page; 3993 3994 KASSERT(page_index->subpage == SMS_SUBPAGE_PAGE_0, 3995 ("subpage %#x for page %#x is incorrect!", 3996 page_index->subpage, page_code)); 3997 memcpy(&lun->mode_pages.caching_page[CTL_PAGE_DEFAULT], 3998 &caching_page_default, 3999 sizeof(caching_page_default)); 4000 memcpy(&lun->mode_pages.caching_page[ 4001 CTL_PAGE_CHANGEABLE], &caching_page_changeable, 4002 sizeof(caching_page_changeable)); 4003 memcpy(&lun->mode_pages.caching_page[CTL_PAGE_SAVED], 4004 &caching_page_default, 4005 sizeof(caching_page_default)); 4006 caching_page = &lun->mode_pages.caching_page[ 4007 CTL_PAGE_SAVED]; 4008 value = ctl_get_opt(&lun->be_lun->options, "writecache"); 4009 if (value != NULL && strcmp(value, "off") == 0) 4010 caching_page->flags1 &= ~SCP_WCE; 4011 value = ctl_get_opt(&lun->be_lun->options, "readcache"); 4012 if (value != NULL && strcmp(value, "off") == 0) 4013 caching_page->flags1 |= SCP_RCD; 4014 memcpy(&lun->mode_pages.caching_page[CTL_PAGE_CURRENT], 4015 &lun->mode_pages.caching_page[CTL_PAGE_SAVED], 4016 sizeof(caching_page_default)); 4017 page_index->page_data = 4018 (uint8_t *)lun->mode_pages.caching_page; 4019 break; 4020 } 4021 case SMS_CONTROL_MODE_PAGE: { 4022 switch (page_index->subpage) { 4023 case SMS_SUBPAGE_PAGE_0: { 4024 struct scsi_control_page *control_page; 4025 4026 memcpy(&lun->mode_pages.control_page[ 4027 CTL_PAGE_DEFAULT], 4028 &control_page_default, 4029 sizeof(control_page_default)); 4030 memcpy(&lun->mode_pages.control_page[ 4031 CTL_PAGE_CHANGEABLE], 4032 &control_page_changeable, 4033 sizeof(control_page_changeable)); 4034 memcpy(&lun->mode_pages.control_page[ 4035 CTL_PAGE_SAVED], 4036 &control_page_default, 4037 sizeof(control_page_default)); 4038 control_page = &lun->mode_pages.control_page[ 4039 CTL_PAGE_SAVED]; 4040 value = ctl_get_opt(&lun->be_lun->options, 4041 "reordering"); 4042 if (value != NULL && 4043 strcmp(value, "unrestricted") == 0) { 4044 control_page->queue_flags &= 4045 ~SCP_QUEUE_ALG_MASK; 4046 control_page->queue_flags |= 4047 SCP_QUEUE_ALG_UNRESTRICTED; 4048 } 4049 memcpy(&lun->mode_pages.control_page[ 4050 CTL_PAGE_CURRENT], 4051 &lun->mode_pages.control_page[ 4052 CTL_PAGE_SAVED], 4053 sizeof(control_page_default)); 4054 page_index->page_data = 4055 (uint8_t *)lun->mode_pages.control_page; 4056 break; 4057 } 4058 case 0x01: 4059 memcpy(&lun->mode_pages.control_ext_page[ 4060 CTL_PAGE_DEFAULT], 4061 &control_ext_page_default, 4062 sizeof(control_ext_page_default)); 4063 memcpy(&lun->mode_pages.control_ext_page[ 4064 CTL_PAGE_CHANGEABLE], 4065 &control_ext_page_changeable, 4066 sizeof(control_ext_page_changeable)); 4067 memcpy(&lun->mode_pages.control_ext_page[ 4068 CTL_PAGE_SAVED], 4069 &control_ext_page_default, 4070 sizeof(control_ext_page_default)); 4071 memcpy(&lun->mode_pages.control_ext_page[ 4072 CTL_PAGE_CURRENT], 4073 &lun->mode_pages.control_ext_page[ 4074 CTL_PAGE_SAVED], 4075 sizeof(control_ext_page_default)); 4076 page_index->page_data = 4077 (uint8_t *)lun->mode_pages.control_ext_page; 4078 break; 4079 default: 4080 panic("subpage %#x for page %#x is incorrect!", 4081 page_index->subpage, page_code); 4082 } 4083 break; 4084 } 4085 case SMS_INFO_EXCEPTIONS_PAGE: { 4086 switch (page_index->subpage) { 4087 case SMS_SUBPAGE_PAGE_0: 4088 memcpy(&lun->mode_pages.ie_page[CTL_PAGE_CURRENT], 4089 &ie_page_default, 4090 sizeof(ie_page_default)); 4091 memcpy(&lun->mode_pages.ie_page[ 4092 CTL_PAGE_CHANGEABLE], &ie_page_changeable, 4093 sizeof(ie_page_changeable)); 4094 memcpy(&lun->mode_pages.ie_page[CTL_PAGE_DEFAULT], 4095 &ie_page_default, 4096 sizeof(ie_page_default)); 4097 memcpy(&lun->mode_pages.ie_page[CTL_PAGE_SAVED], 4098 &ie_page_default, 4099 sizeof(ie_page_default)); 4100 page_index->page_data = 4101 (uint8_t *)lun->mode_pages.ie_page; 4102 break; 4103 case 0x02: { 4104 struct ctl_logical_block_provisioning_page *page; 4105 4106 memcpy(&lun->mode_pages.lbp_page[CTL_PAGE_DEFAULT], 4107 &lbp_page_default, 4108 sizeof(lbp_page_default)); 4109 memcpy(&lun->mode_pages.lbp_page[ 4110 CTL_PAGE_CHANGEABLE], &lbp_page_changeable, 4111 sizeof(lbp_page_changeable)); 4112 memcpy(&lun->mode_pages.lbp_page[CTL_PAGE_SAVED], 4113 &lbp_page_default, 4114 sizeof(lbp_page_default)); 4115 page = &lun->mode_pages.lbp_page[CTL_PAGE_SAVED]; 4116 value = ctl_get_opt(&lun->be_lun->options, 4117 "avail-threshold"); 4118 if (value != NULL && 4119 ctl_expand_number(value, &ival) == 0) { 4120 page->descr[0].flags |= SLBPPD_ENABLED | 4121 SLBPPD_ARMING_DEC; 4122 if (lun->be_lun->blocksize) 4123 ival /= lun->be_lun->blocksize; 4124 else 4125 ival /= 512; 4126 scsi_ulto4b(ival >> CTL_LBP_EXPONENT, 4127 page->descr[0].count); 4128 } 4129 value = ctl_get_opt(&lun->be_lun->options, 4130 "used-threshold"); 4131 if (value != NULL && 4132 ctl_expand_number(value, &ival) == 0) { 4133 page->descr[1].flags |= SLBPPD_ENABLED | 4134 SLBPPD_ARMING_INC; 4135 if (lun->be_lun->blocksize) 4136 ival /= lun->be_lun->blocksize; 4137 else 4138 ival /= 512; 4139 scsi_ulto4b(ival >> CTL_LBP_EXPONENT, 4140 page->descr[1].count); 4141 } 4142 value = ctl_get_opt(&lun->be_lun->options, 4143 "pool-avail-threshold"); 4144 if (value != NULL && 4145 ctl_expand_number(value, &ival) == 0) { 4146 page->descr[2].flags |= SLBPPD_ENABLED | 4147 SLBPPD_ARMING_DEC; 4148 if (lun->be_lun->blocksize) 4149 ival /= lun->be_lun->blocksize; 4150 else 4151 ival /= 512; 4152 scsi_ulto4b(ival >> CTL_LBP_EXPONENT, 4153 page->descr[2].count); 4154 } 4155 value = ctl_get_opt(&lun->be_lun->options, 4156 "pool-used-threshold"); 4157 if (value != NULL && 4158 ctl_expand_number(value, &ival) == 0) { 4159 page->descr[3].flags |= SLBPPD_ENABLED | 4160 SLBPPD_ARMING_INC; 4161 if (lun->be_lun->blocksize) 4162 ival /= lun->be_lun->blocksize; 4163 else 4164 ival /= 512; 4165 scsi_ulto4b(ival >> CTL_LBP_EXPONENT, 4166 page->descr[3].count); 4167 } 4168 memcpy(&lun->mode_pages.lbp_page[CTL_PAGE_CURRENT], 4169 &lun->mode_pages.lbp_page[CTL_PAGE_SAVED], 4170 sizeof(lbp_page_default)); 4171 page_index->page_data = 4172 (uint8_t *)lun->mode_pages.lbp_page; 4173 break; 4174 } 4175 default: 4176 panic("subpage %#x for page %#x is incorrect!", 4177 page_index->subpage, page_code); 4178 } 4179 break; 4180 } 4181 case SMS_CDDVD_CAPS_PAGE:{ 4182 KASSERT(page_index->subpage == SMS_SUBPAGE_PAGE_0, 4183 ("subpage %#x for page %#x is incorrect!", 4184 page_index->subpage, page_code)); 4185 memcpy(&lun->mode_pages.cddvd_page[CTL_PAGE_DEFAULT], 4186 &cddvd_page_default, 4187 sizeof(cddvd_page_default)); 4188 memcpy(&lun->mode_pages.cddvd_page[ 4189 CTL_PAGE_CHANGEABLE], &cddvd_page_changeable, 4190 sizeof(cddvd_page_changeable)); 4191 memcpy(&lun->mode_pages.cddvd_page[CTL_PAGE_SAVED], 4192 &cddvd_page_default, 4193 sizeof(cddvd_page_default)); 4194 memcpy(&lun->mode_pages.cddvd_page[CTL_PAGE_CURRENT], 4195 &lun->mode_pages.cddvd_page[CTL_PAGE_SAVED], 4196 sizeof(cddvd_page_default)); 4197 page_index->page_data = 4198 (uint8_t *)lun->mode_pages.cddvd_page; 4199 break; 4200 } 4201 case SMS_VENDOR_SPECIFIC_PAGE:{ 4202 switch (page_index->subpage) { 4203 case DBGCNF_SUBPAGE_CODE: { 4204 memcpy(&lun->mode_pages.debugconf_subpage[ 4205 CTL_PAGE_CURRENT], 4206 &debugconf_page_default, 4207 sizeof(debugconf_page_default)); 4208 memcpy(&lun->mode_pages.debugconf_subpage[ 4209 CTL_PAGE_CHANGEABLE], 4210 &debugconf_page_changeable, 4211 sizeof(debugconf_page_changeable)); 4212 memcpy(&lun->mode_pages.debugconf_subpage[ 4213 CTL_PAGE_DEFAULT], 4214 &debugconf_page_default, 4215 sizeof(debugconf_page_default)); 4216 memcpy(&lun->mode_pages.debugconf_subpage[ 4217 CTL_PAGE_SAVED], 4218 &debugconf_page_default, 4219 sizeof(debugconf_page_default)); 4220 page_index->page_data = 4221 (uint8_t *)lun->mode_pages.debugconf_subpage; 4222 break; 4223 } 4224 default: 4225 panic("subpage %#x for page %#x is incorrect!", 4226 page_index->subpage, page_code); 4227 } 4228 break; 4229 } 4230 default: 4231 panic("invalid page code value %#x", page_code); 4232 } 4233 } 4234 4235 return (CTL_RETVAL_COMPLETE); 4236} 4237 4238static int 4239ctl_init_log_page_index(struct ctl_lun *lun) 4240{ 4241 struct ctl_page_index *page_index; 4242 int i, j, k, prev; 4243 4244 memcpy(&lun->log_pages.index, log_page_index_template, 4245 sizeof(log_page_index_template)); 4246 4247 prev = -1; 4248 for (i = 0, j = 0, k = 0; i < CTL_NUM_LOG_PAGES; i++) { 4249 4250 page_index = &lun->log_pages.index[i]; 4251 if (lun->be_lun->lun_type == T_DIRECT && 4252 (page_index->page_flags & CTL_PAGE_FLAG_DIRECT) == 0) 4253 continue; 4254 if (lun->be_lun->lun_type == T_PROCESSOR && 4255 (page_index->page_flags & CTL_PAGE_FLAG_PROC) == 0) 4256 continue; 4257 if (lun->be_lun->lun_type == T_CDROM && 4258 (page_index->page_flags & CTL_PAGE_FLAG_CDROM) == 0) 4259 continue; 4260 4261 if (page_index->page_code == SLS_LOGICAL_BLOCK_PROVISIONING && 4262 lun->backend->lun_attr == NULL) 4263 continue; 4264 4265 if (page_index->page_code != prev) { 4266 lun->log_pages.pages_page[j] = page_index->page_code; 4267 prev = page_index->page_code; 4268 j++; 4269 } 4270 lun->log_pages.subpages_page[k*2] = page_index->page_code; 4271 lun->log_pages.subpages_page[k*2+1] = page_index->subpage; 4272 k++; 4273 } 4274 lun->log_pages.index[0].page_data = &lun->log_pages.pages_page[0]; 4275 lun->log_pages.index[0].page_len = j; 4276 lun->log_pages.index[1].page_data = &lun->log_pages.subpages_page[0]; 4277 lun->log_pages.index[1].page_len = k * 2; 4278 lun->log_pages.index[2].page_data = &lun->log_pages.lbp_page[0]; 4279 lun->log_pages.index[2].page_len = 12*CTL_NUM_LBP_PARAMS; 4280 lun->log_pages.index[3].page_data = (uint8_t *)&lun->log_pages.stat_page; 4281 lun->log_pages.index[3].page_len = sizeof(lun->log_pages.stat_page); 4282 4283 return (CTL_RETVAL_COMPLETE); 4284} 4285 4286static int 4287hex2bin(const char *str, uint8_t *buf, int buf_size) 4288{ 4289 int i; 4290 u_char c; 4291 4292 memset(buf, 0, buf_size); 4293 while (isspace(str[0])) 4294 str++; 4295 if (str[0] == '0' && (str[1] == 'x' || str[1] == 'X')) 4296 str += 2; 4297 buf_size *= 2; 4298 for (i = 0; str[i] != 0 && i < buf_size; i++) { 4299 c = str[i]; 4300 if (isdigit(c)) 4301 c -= '0'; 4302 else if (isalpha(c)) 4303 c -= isupper(c) ? 'A' - 10 : 'a' - 10; 4304 else 4305 break; 4306 if (c >= 16) 4307 break; 4308 if ((i & 1) == 0) 4309 buf[i / 2] |= (c << 4); 4310 else 4311 buf[i / 2] |= c; 4312 } 4313 return ((i + 1) / 2); 4314} 4315 4316/* 4317 * LUN allocation. 4318 * 4319 * Requirements: 4320 * - caller allocates and zeros LUN storage, or passes in a NULL LUN if he 4321 * wants us to allocate the LUN and he can block. 4322 * - ctl_softc is always set 4323 * - be_lun is set if the LUN has a backend (needed for disk LUNs) 4324 * 4325 * Returns 0 for success, non-zero (errno) for failure. 4326 */ 4327static int 4328ctl_alloc_lun(struct ctl_softc *ctl_softc, struct ctl_lun *ctl_lun, 4329 struct ctl_be_lun *const be_lun) 4330{ 4331 struct ctl_lun *nlun, *lun; 4332 struct scsi_vpd_id_descriptor *desc; 4333 struct scsi_vpd_id_t10 *t10id; 4334 const char *eui, *naa, *scsiname, *vendor, *value; 4335 int lun_number, i, lun_malloced; 4336 int devidlen, idlen1, idlen2 = 0, len; 4337 4338 if (be_lun == NULL) 4339 return (EINVAL); 4340 4341 /* 4342 * We currently only support Direct Access or Processor LUN types. 4343 */ 4344 switch (be_lun->lun_type) { 4345 case T_DIRECT: 4346 case T_PROCESSOR: 4347 case T_CDROM: 4348 break; 4349 case T_SEQUENTIAL: 4350 case T_CHANGER: 4351 default: 4352 be_lun->lun_config_status(be_lun->be_lun, 4353 CTL_LUN_CONFIG_FAILURE); 4354 break; 4355 } 4356 if (ctl_lun == NULL) { 4357 lun = malloc(sizeof(*lun), M_CTL, M_WAITOK); 4358 lun_malloced = 1; 4359 } else { 4360 lun_malloced = 0; 4361 lun = ctl_lun; 4362 } 4363 4364 memset(lun, 0, sizeof(*lun)); 4365 if (lun_malloced) 4366 lun->flags = CTL_LUN_MALLOCED; 4367 4368 /* Generate LUN ID. */ 4369 devidlen = max(CTL_DEVID_MIN_LEN, 4370 strnlen(be_lun->device_id, CTL_DEVID_LEN)); 4371 idlen1 = sizeof(*t10id) + devidlen; 4372 len = sizeof(struct scsi_vpd_id_descriptor) + idlen1; 4373 scsiname = ctl_get_opt(&be_lun->options, "scsiname"); 4374 if (scsiname != NULL) { 4375 idlen2 = roundup2(strlen(scsiname) + 1, 4); 4376 len += sizeof(struct scsi_vpd_id_descriptor) + idlen2; 4377 } 4378 eui = ctl_get_opt(&be_lun->options, "eui"); 4379 if (eui != NULL) { 4380 len += sizeof(struct scsi_vpd_id_descriptor) + 16; 4381 } 4382 naa = ctl_get_opt(&be_lun->options, "naa"); 4383 if (naa != NULL) { 4384 len += sizeof(struct scsi_vpd_id_descriptor) + 16; 4385 } 4386 lun->lun_devid = malloc(sizeof(struct ctl_devid) + len, 4387 M_CTL, M_WAITOK | M_ZERO); 4388 desc = (struct scsi_vpd_id_descriptor *)lun->lun_devid->data; 4389 desc->proto_codeset = SVPD_ID_CODESET_ASCII; 4390 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | SVPD_ID_TYPE_T10; 4391 desc->length = idlen1; 4392 t10id = (struct scsi_vpd_id_t10 *)&desc->identifier[0]; 4393 memset(t10id->vendor, ' ', sizeof(t10id->vendor)); 4394 if ((vendor = ctl_get_opt(&be_lun->options, "vendor")) == NULL) { 4395 strncpy((char *)t10id->vendor, CTL_VENDOR, sizeof(t10id->vendor)); 4396 } else { 4397 strncpy(t10id->vendor, vendor, 4398 min(sizeof(t10id->vendor), strlen(vendor))); 4399 } 4400 strncpy((char *)t10id->vendor_spec_id, 4401 (char *)be_lun->device_id, devidlen); 4402 if (scsiname != NULL) { 4403 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 4404 desc->length); 4405 desc->proto_codeset = SVPD_ID_CODESET_UTF8; 4406 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | 4407 SVPD_ID_TYPE_SCSI_NAME; 4408 desc->length = idlen2; 4409 strlcpy(desc->identifier, scsiname, idlen2); 4410 } 4411 if (eui != NULL) { 4412 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 4413 desc->length); 4414 desc->proto_codeset = SVPD_ID_CODESET_BINARY; 4415 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | 4416 SVPD_ID_TYPE_EUI64; 4417 desc->length = hex2bin(eui, desc->identifier, 16); 4418 desc->length = desc->length > 12 ? 16 : 4419 (desc->length > 8 ? 12 : 8); 4420 len -= 16 - desc->length; 4421 } 4422 if (naa != NULL) { 4423 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 4424 desc->length); 4425 desc->proto_codeset = SVPD_ID_CODESET_BINARY; 4426 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | 4427 SVPD_ID_TYPE_NAA; 4428 desc->length = hex2bin(naa, desc->identifier, 16); 4429 desc->length = desc->length > 8 ? 16 : 8; 4430 len -= 16 - desc->length; 4431 } 4432 lun->lun_devid->len = len; 4433 4434 mtx_lock(&ctl_softc->ctl_lock); 4435 /* 4436 * See if the caller requested a particular LUN number. If so, see 4437 * if it is available. Otherwise, allocate the first available LUN. 4438 */ 4439 if (be_lun->flags & CTL_LUN_FLAG_ID_REQ) { 4440 if ((be_lun->req_lun_id > (CTL_MAX_LUNS - 1)) 4441 || (ctl_is_set(ctl_softc->ctl_lun_mask, be_lun->req_lun_id))) { 4442 mtx_unlock(&ctl_softc->ctl_lock); 4443 if (be_lun->req_lun_id > (CTL_MAX_LUNS - 1)) { 4444 printf("ctl: requested LUN ID %d is higher " 4445 "than CTL_MAX_LUNS - 1 (%d)\n", 4446 be_lun->req_lun_id, CTL_MAX_LUNS - 1); 4447 } else { 4448 /* 4449 * XXX KDM return an error, or just assign 4450 * another LUN ID in this case?? 4451 */ 4452 printf("ctl: requested LUN ID %d is already " 4453 "in use\n", be_lun->req_lun_id); 4454 } 4455 if (lun->flags & CTL_LUN_MALLOCED) 4456 free(lun, M_CTL); 4457 be_lun->lun_config_status(be_lun->be_lun, 4458 CTL_LUN_CONFIG_FAILURE); 4459 return (ENOSPC); 4460 } 4461 lun_number = be_lun->req_lun_id; 4462 } else { 4463 lun_number = ctl_ffz(ctl_softc->ctl_lun_mask, 0, CTL_MAX_LUNS); 4464 if (lun_number == -1) { 4465 mtx_unlock(&ctl_softc->ctl_lock); 4466 printf("ctl: can't allocate LUN, out of LUNs\n"); 4467 if (lun->flags & CTL_LUN_MALLOCED) 4468 free(lun, M_CTL); 4469 be_lun->lun_config_status(be_lun->be_lun, 4470 CTL_LUN_CONFIG_FAILURE); 4471 return (ENOSPC); 4472 } 4473 } 4474 ctl_set_mask(ctl_softc->ctl_lun_mask, lun_number); 4475 4476 mtx_init(&lun->lun_lock, "CTL LUN", NULL, MTX_DEF); 4477 lun->lun = lun_number; 4478 lun->be_lun = be_lun; 4479 /* 4480 * The processor LUN is always enabled. Disk LUNs come on line 4481 * disabled, and must be enabled by the backend. 4482 */ 4483 lun->flags |= CTL_LUN_DISABLED; 4484 lun->backend = be_lun->be; 4485 be_lun->ctl_lun = lun; 4486 be_lun->lun_id = lun_number; 4487 atomic_add_int(&be_lun->be->num_luns, 1); 4488 if (be_lun->flags & CTL_LUN_FLAG_EJECTED) 4489 lun->flags |= CTL_LUN_EJECTED; 4490 if (be_lun->flags & CTL_LUN_FLAG_NO_MEDIA) 4491 lun->flags |= CTL_LUN_NO_MEDIA; 4492 if (be_lun->flags & CTL_LUN_FLAG_STOPPED) 4493 lun->flags |= CTL_LUN_STOPPED; 4494 4495 if (be_lun->flags & CTL_LUN_FLAG_PRIMARY) 4496 lun->flags |= CTL_LUN_PRIMARY_SC; 4497 4498 value = ctl_get_opt(&be_lun->options, "removable"); 4499 if (value != NULL) { 4500 if (strcmp(value, "on") == 0) 4501 lun->flags |= CTL_LUN_REMOVABLE; 4502 } else if (be_lun->lun_type == T_CDROM) 4503 lun->flags |= CTL_LUN_REMOVABLE; 4504 4505 lun->ctl_softc = ctl_softc; 4506#ifdef CTL_TIME_IO 4507 lun->last_busy = getsbinuptime(); 4508#endif 4509 TAILQ_INIT(&lun->ooa_queue); 4510 TAILQ_INIT(&lun->blocked_queue); 4511 STAILQ_INIT(&lun->error_list); 4512 ctl_tpc_lun_init(lun); 4513 4514 /* 4515 * Initialize the mode and log page index. 4516 */ 4517 ctl_init_page_index(lun); 4518 ctl_init_log_page_index(lun); 4519 4520 /* 4521 * Now, before we insert this lun on the lun list, set the lun 4522 * inventory changed UA for all other luns. 4523 */ 4524 STAILQ_FOREACH(nlun, &ctl_softc->lun_list, links) { 4525 mtx_lock(&nlun->lun_lock); 4526 ctl_est_ua_all(nlun, -1, CTL_UA_LUN_CHANGE); 4527 mtx_unlock(&nlun->lun_lock); 4528 } 4529 4530 STAILQ_INSERT_TAIL(&ctl_softc->lun_list, lun, links); 4531 4532 ctl_softc->ctl_luns[lun_number] = lun; 4533 4534 ctl_softc->num_luns++; 4535 4536 /* Setup statistics gathering */ 4537 lun->stats.device_type = be_lun->lun_type; 4538 lun->stats.lun_number = lun_number; 4539 lun->stats.blocksize = be_lun->blocksize; 4540 if (be_lun->blocksize == 0) 4541 lun->stats.flags = CTL_LUN_STATS_NO_BLOCKSIZE; 4542 for (i = 0;i < CTL_MAX_PORTS;i++) 4543 lun->stats.ports[i].targ_port = i; 4544 4545 mtx_unlock(&ctl_softc->ctl_lock); 4546 4547 lun->be_lun->lun_config_status(lun->be_lun->be_lun, CTL_LUN_CONFIG_OK); 4548 return (0); 4549} 4550 4551/* 4552 * Delete a LUN. 4553 * Assumptions: 4554 * - LUN has already been marked invalid and any pending I/O has been taken 4555 * care of. 4556 */ 4557static int 4558ctl_free_lun(struct ctl_lun *lun) 4559{ 4560 struct ctl_softc *softc; 4561 struct ctl_lun *nlun; 4562 int i; 4563 4564 softc = lun->ctl_softc; 4565 4566 mtx_assert(&softc->ctl_lock, MA_OWNED); 4567 4568 STAILQ_REMOVE(&softc->lun_list, lun, ctl_lun, links); 4569 4570 ctl_clear_mask(softc->ctl_lun_mask, lun->lun); 4571 4572 softc->ctl_luns[lun->lun] = NULL; 4573 4574 if (!TAILQ_EMPTY(&lun->ooa_queue)) 4575 panic("Freeing a LUN %p with outstanding I/O!!\n", lun); 4576 4577 softc->num_luns--; 4578 4579 /* 4580 * Tell the backend to free resources, if this LUN has a backend. 4581 */ 4582 atomic_subtract_int(&lun->be_lun->be->num_luns, 1); 4583 lun->be_lun->lun_shutdown(lun->be_lun->be_lun); 4584 4585 ctl_tpc_lun_shutdown(lun); 4586 mtx_destroy(&lun->lun_lock); 4587 free(lun->lun_devid, M_CTL); 4588 for (i = 0; i < CTL_MAX_PORTS; i++) 4589 free(lun->pending_ua[i], M_CTL); 4590 for (i = 0; i < CTL_MAX_PORTS; i++) 4591 free(lun->pr_keys[i], M_CTL); 4592 free(lun->write_buffer, M_CTL); 4593 if (lun->flags & CTL_LUN_MALLOCED) 4594 free(lun, M_CTL); 4595 4596 STAILQ_FOREACH(nlun, &softc->lun_list, links) { 4597 mtx_lock(&nlun->lun_lock); 4598 ctl_est_ua_all(nlun, -1, CTL_UA_LUN_CHANGE); 4599 mtx_unlock(&nlun->lun_lock); 4600 } 4601 4602 return (0); 4603} 4604 4605static void 4606ctl_create_lun(struct ctl_be_lun *be_lun) 4607{ 4608 4609 /* 4610 * ctl_alloc_lun() should handle all potential failure cases. 4611 */ 4612 ctl_alloc_lun(control_softc, NULL, be_lun); 4613} 4614 4615int 4616ctl_add_lun(struct ctl_be_lun *be_lun) 4617{ 4618 struct ctl_softc *softc = control_softc; 4619 4620 mtx_lock(&softc->ctl_lock); 4621 STAILQ_INSERT_TAIL(&softc->pending_lun_queue, be_lun, links); 4622 mtx_unlock(&softc->ctl_lock); 4623 wakeup(&softc->pending_lun_queue); 4624 4625 return (0); 4626} 4627 4628int 4629ctl_enable_lun(struct ctl_be_lun *be_lun) 4630{ 4631 struct ctl_softc *softc; 4632 struct ctl_port *port, *nport; 4633 struct ctl_lun *lun; 4634 int retval; 4635 4636 lun = (struct ctl_lun *)be_lun->ctl_lun; 4637 softc = lun->ctl_softc; 4638 4639 mtx_lock(&softc->ctl_lock); 4640 mtx_lock(&lun->lun_lock); 4641 if ((lun->flags & CTL_LUN_DISABLED) == 0) { 4642 /* 4643 * eh? Why did we get called if the LUN is already 4644 * enabled? 4645 */ 4646 mtx_unlock(&lun->lun_lock); 4647 mtx_unlock(&softc->ctl_lock); 4648 return (0); 4649 } 4650 lun->flags &= ~CTL_LUN_DISABLED; 4651 mtx_unlock(&lun->lun_lock); 4652 4653 STAILQ_FOREACH_SAFE(port, &softc->port_list, links, nport) { 4654 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0 || 4655 port->lun_map != NULL || port->lun_enable == NULL) 4656 continue; 4657 4658 /* 4659 * Drop the lock while we call the FETD's enable routine. 4660 * This can lead to a callback into CTL (at least in the 4661 * case of the internal initiator frontend. 4662 */ 4663 mtx_unlock(&softc->ctl_lock); 4664 retval = port->lun_enable(port->targ_lun_arg, lun->lun); 4665 mtx_lock(&softc->ctl_lock); 4666 if (retval != 0) { 4667 printf("%s: FETD %s port %d returned error " 4668 "%d for lun_enable on lun %jd\n", 4669 __func__, port->port_name, port->targ_port, 4670 retval, (intmax_t)lun->lun); 4671 } 4672 } 4673 4674 mtx_unlock(&softc->ctl_lock); 4675 ctl_isc_announce_lun(lun); 4676 4677 return (0); 4678} 4679 4680int 4681ctl_disable_lun(struct ctl_be_lun *be_lun) 4682{ 4683 struct ctl_softc *softc; 4684 struct ctl_port *port; 4685 struct ctl_lun *lun; 4686 int retval; 4687 4688 lun = (struct ctl_lun *)be_lun->ctl_lun; 4689 softc = lun->ctl_softc; 4690 4691 mtx_lock(&softc->ctl_lock); 4692 mtx_lock(&lun->lun_lock); 4693 if (lun->flags & CTL_LUN_DISABLED) { 4694 mtx_unlock(&lun->lun_lock); 4695 mtx_unlock(&softc->ctl_lock); 4696 return (0); 4697 } 4698 lun->flags |= CTL_LUN_DISABLED; 4699 mtx_unlock(&lun->lun_lock); 4700 4701 STAILQ_FOREACH(port, &softc->port_list, links) { 4702 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0 || 4703 port->lun_map != NULL || port->lun_disable == NULL) 4704 continue; 4705 4706 /* 4707 * Drop the lock before we call the frontend's disable 4708 * routine, to avoid lock order reversals. 4709 * 4710 * XXX KDM what happens if the frontend list changes while 4711 * we're traversing it? It's unlikely, but should be handled. 4712 */ 4713 mtx_unlock(&softc->ctl_lock); 4714 retval = port->lun_disable(port->targ_lun_arg, lun->lun); 4715 mtx_lock(&softc->ctl_lock); 4716 if (retval != 0) { 4717 printf("%s: FETD %s port %d returned error " 4718 "%d for lun_disable on lun %jd\n", 4719 __func__, port->port_name, port->targ_port, 4720 retval, (intmax_t)lun->lun); 4721 } 4722 } 4723 4724 mtx_unlock(&softc->ctl_lock); 4725 ctl_isc_announce_lun(lun); 4726 4727 return (0); 4728} 4729 4730int 4731ctl_start_lun(struct ctl_be_lun *be_lun) 4732{ 4733 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 4734 4735 mtx_lock(&lun->lun_lock); 4736 lun->flags &= ~CTL_LUN_STOPPED; 4737 mtx_unlock(&lun->lun_lock); 4738 return (0); 4739} 4740 4741int 4742ctl_stop_lun(struct ctl_be_lun *be_lun) 4743{ 4744 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 4745 4746 mtx_lock(&lun->lun_lock); 4747 lun->flags |= CTL_LUN_STOPPED; 4748 mtx_unlock(&lun->lun_lock); 4749 return (0); 4750} 4751 4752int 4753ctl_lun_no_media(struct ctl_be_lun *be_lun) 4754{ 4755 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 4756 4757 mtx_lock(&lun->lun_lock); 4758 lun->flags |= CTL_LUN_NO_MEDIA; 4759 mtx_unlock(&lun->lun_lock); 4760 return (0); 4761} 4762 4763int 4764ctl_lun_has_media(struct ctl_be_lun *be_lun) 4765{ 4766 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 4767 union ctl_ha_msg msg; 4768 4769 mtx_lock(&lun->lun_lock); 4770 lun->flags &= ~(CTL_LUN_NO_MEDIA | CTL_LUN_EJECTED); 4771 if (lun->flags & CTL_LUN_REMOVABLE) 4772 ctl_est_ua_all(lun, -1, CTL_UA_MEDIUM_CHANGE); 4773 mtx_unlock(&lun->lun_lock); 4774 if ((lun->flags & CTL_LUN_REMOVABLE) && 4775 lun->ctl_softc->ha_mode == CTL_HA_MODE_XFER) { 4776 bzero(&msg.ua, sizeof(msg.ua)); 4777 msg.hdr.msg_type = CTL_MSG_UA; 4778 msg.hdr.nexus.initid = -1; 4779 msg.hdr.nexus.targ_port = -1; 4780 msg.hdr.nexus.targ_lun = lun->lun; 4781 msg.hdr.nexus.targ_mapped_lun = lun->lun; 4782 msg.ua.ua_all = 1; 4783 msg.ua.ua_set = 1; 4784 msg.ua.ua_type = CTL_UA_MEDIUM_CHANGE; 4785 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, sizeof(msg.ua), 4786 M_WAITOK); 4787 } 4788 return (0); 4789} 4790 4791int 4792ctl_lun_ejected(struct ctl_be_lun *be_lun) 4793{ 4794 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 4795 4796 mtx_lock(&lun->lun_lock); 4797 lun->flags |= CTL_LUN_EJECTED; 4798 mtx_unlock(&lun->lun_lock); 4799 return (0); 4800} 4801 4802int 4803ctl_lun_primary(struct ctl_be_lun *be_lun) 4804{ 4805 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 4806 4807 mtx_lock(&lun->lun_lock); 4808 lun->flags |= CTL_LUN_PRIMARY_SC; 4809 ctl_est_ua_all(lun, -1, CTL_UA_ASYM_ACC_CHANGE); 4810 mtx_unlock(&lun->lun_lock); 4811 ctl_isc_announce_lun(lun); 4812 return (0); 4813} 4814 4815int 4816ctl_lun_secondary(struct ctl_be_lun *be_lun) 4817{ 4818 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 4819 4820 mtx_lock(&lun->lun_lock); 4821 lun->flags &= ~CTL_LUN_PRIMARY_SC; 4822 ctl_est_ua_all(lun, -1, CTL_UA_ASYM_ACC_CHANGE); 4823 mtx_unlock(&lun->lun_lock); 4824 ctl_isc_announce_lun(lun); 4825 return (0); 4826} 4827 4828int 4829ctl_invalidate_lun(struct ctl_be_lun *be_lun) 4830{ 4831 struct ctl_softc *softc; 4832 struct ctl_lun *lun; 4833 4834 lun = (struct ctl_lun *)be_lun->ctl_lun; 4835 softc = lun->ctl_softc; 4836 4837 mtx_lock(&lun->lun_lock); 4838 4839 /* 4840 * The LUN needs to be disabled before it can be marked invalid. 4841 */ 4842 if ((lun->flags & CTL_LUN_DISABLED) == 0) { 4843 mtx_unlock(&lun->lun_lock); 4844 return (-1); 4845 } 4846 /* 4847 * Mark the LUN invalid. 4848 */ 4849 lun->flags |= CTL_LUN_INVALID; 4850 4851 /* 4852 * If there is nothing in the OOA queue, go ahead and free the LUN. 4853 * If we have something in the OOA queue, we'll free it when the 4854 * last I/O completes. 4855 */ 4856 if (TAILQ_EMPTY(&lun->ooa_queue)) { 4857 mtx_unlock(&lun->lun_lock); 4858 mtx_lock(&softc->ctl_lock); 4859 ctl_free_lun(lun); 4860 mtx_unlock(&softc->ctl_lock); 4861 } else 4862 mtx_unlock(&lun->lun_lock); 4863 4864 return (0); 4865} 4866 4867void 4868ctl_lun_capacity_changed(struct ctl_be_lun *be_lun) 4869{ 4870 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 4871 union ctl_ha_msg msg; 4872 4873 mtx_lock(&lun->lun_lock); 4874 ctl_est_ua_all(lun, -1, CTL_UA_CAPACITY_CHANGE); 4875 mtx_unlock(&lun->lun_lock); 4876 if (lun->ctl_softc->ha_mode == CTL_HA_MODE_XFER) { 4877 /* Send msg to other side. */ 4878 bzero(&msg.ua, sizeof(msg.ua)); 4879 msg.hdr.msg_type = CTL_MSG_UA; 4880 msg.hdr.nexus.initid = -1; 4881 msg.hdr.nexus.targ_port = -1; 4882 msg.hdr.nexus.targ_lun = lun->lun; 4883 msg.hdr.nexus.targ_mapped_lun = lun->lun; 4884 msg.ua.ua_all = 1; 4885 msg.ua.ua_set = 1; 4886 msg.ua.ua_type = CTL_UA_CAPACITY_CHANGE; 4887 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, sizeof(msg.ua), 4888 M_WAITOK); 4889 } 4890} 4891 4892/* 4893 * Backend "memory move is complete" callback for requests that never 4894 * make it down to say RAIDCore's configuration code. 4895 */ 4896int 4897ctl_config_move_done(union ctl_io *io) 4898{ 4899 int retval; 4900 4901 CTL_DEBUG_PRINT(("ctl_config_move_done\n")); 4902 KASSERT(io->io_hdr.io_type == CTL_IO_SCSI, 4903 ("Config I/O type isn't CTL_IO_SCSI (%d)!", io->io_hdr.io_type)); 4904 4905 if ((io->io_hdr.port_status != 0) && 4906 ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE || 4907 (io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS)) { 4908 /* 4909 * For hardware error sense keys, the sense key 4910 * specific value is defined to be a retry count, 4911 * but we use it to pass back an internal FETD 4912 * error code. XXX KDM Hopefully the FETD is only 4913 * using 16 bits for an error code, since that's 4914 * all the space we have in the sks field. 4915 */ 4916 ctl_set_internal_failure(&io->scsiio, 4917 /*sks_valid*/ 1, 4918 /*retry_count*/ 4919 io->io_hdr.port_status); 4920 } 4921 4922 if (ctl_debug & CTL_DEBUG_CDB_DATA) 4923 ctl_data_print(io); 4924 if (((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_IN) || 4925 ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE && 4926 (io->io_hdr.status & CTL_STATUS_MASK) != CTL_SUCCESS) || 4927 ((io->io_hdr.flags & CTL_FLAG_ABORT) != 0)) { 4928 /* 4929 * XXX KDM just assuming a single pointer here, and not a 4930 * S/G list. If we start using S/G lists for config data, 4931 * we'll need to know how to clean them up here as well. 4932 */ 4933 if (io->io_hdr.flags & CTL_FLAG_ALLOCATED) 4934 free(io->scsiio.kern_data_ptr, M_CTL); 4935 ctl_done(io); 4936 retval = CTL_RETVAL_COMPLETE; 4937 } else { 4938 /* 4939 * XXX KDM now we need to continue data movement. Some 4940 * options: 4941 * - call ctl_scsiio() again? We don't do this for data 4942 * writes, because for those at least we know ahead of 4943 * time where the write will go and how long it is. For 4944 * config writes, though, that information is largely 4945 * contained within the write itself, thus we need to 4946 * parse out the data again. 4947 * 4948 * - Call some other function once the data is in? 4949 */ 4950 4951 /* 4952 * XXX KDM call ctl_scsiio() again for now, and check flag 4953 * bits to see whether we're allocated or not. 4954 */ 4955 retval = ctl_scsiio(&io->scsiio); 4956 } 4957 return (retval); 4958} 4959 4960/* 4961 * This gets called by a backend driver when it is done with a 4962 * data_submit method. 4963 */ 4964void 4965ctl_data_submit_done(union ctl_io *io) 4966{ 4967 /* 4968 * If the IO_CONT flag is set, we need to call the supplied 4969 * function to continue processing the I/O, instead of completing 4970 * the I/O just yet. 4971 * 4972 * If there is an error, though, we don't want to keep processing. 4973 * Instead, just send status back to the initiator. 4974 */ 4975 if ((io->io_hdr.flags & CTL_FLAG_IO_CONT) && 4976 (io->io_hdr.flags & CTL_FLAG_ABORT) == 0 && 4977 ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE || 4978 (io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS)) { 4979 io->scsiio.io_cont(io); 4980 return; 4981 } 4982 ctl_done(io); 4983} 4984 4985/* 4986 * This gets called by a backend driver when it is done with a 4987 * configuration write. 4988 */ 4989void 4990ctl_config_write_done(union ctl_io *io) 4991{ 4992 uint8_t *buf; 4993 4994 /* 4995 * If the IO_CONT flag is set, we need to call the supplied 4996 * function to continue processing the I/O, instead of completing 4997 * the I/O just yet. 4998 * 4999 * If there is an error, though, we don't want to keep processing. 5000 * Instead, just send status back to the initiator. 5001 */ 5002 if ((io->io_hdr.flags & CTL_FLAG_IO_CONT) && 5003 (io->io_hdr.flags & CTL_FLAG_ABORT) == 0 && 5004 ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE || 5005 (io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS)) { 5006 io->scsiio.io_cont(io); 5007 return; 5008 } 5009 /* 5010 * Since a configuration write can be done for commands that actually 5011 * have data allocated, like write buffer, and commands that have 5012 * no data, like start/stop unit, we need to check here. 5013 */ 5014 if (io->io_hdr.flags & CTL_FLAG_ALLOCATED) 5015 buf = io->scsiio.kern_data_ptr; 5016 else 5017 buf = NULL; 5018 ctl_done(io); 5019 if (buf) 5020 free(buf, M_CTL); 5021} 5022 5023void 5024ctl_config_read_done(union ctl_io *io) 5025{ 5026 uint8_t *buf; 5027 5028 /* 5029 * If there is some error -- we are done, skip data transfer. 5030 */ 5031 if ((io->io_hdr.flags & CTL_FLAG_ABORT) != 0 || 5032 ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE && 5033 (io->io_hdr.status & CTL_STATUS_MASK) != CTL_SUCCESS)) { 5034 if (io->io_hdr.flags & CTL_FLAG_ALLOCATED) 5035 buf = io->scsiio.kern_data_ptr; 5036 else 5037 buf = NULL; 5038 ctl_done(io); 5039 if (buf) 5040 free(buf, M_CTL); 5041 return; 5042 } 5043 5044 /* 5045 * If the IO_CONT flag is set, we need to call the supplied 5046 * function to continue processing the I/O, instead of completing 5047 * the I/O just yet. 5048 */ 5049 if (io->io_hdr.flags & CTL_FLAG_IO_CONT) { 5050 io->scsiio.io_cont(io); 5051 return; 5052 } 5053 5054 ctl_datamove(io); 5055} 5056 5057/* 5058 * SCSI release command. 5059 */ 5060int 5061ctl_scsi_release(struct ctl_scsiio *ctsio) 5062{ 5063 struct ctl_lun *lun; 5064 uint32_t residx; 5065 5066 CTL_DEBUG_PRINT(("ctl_scsi_release\n")); 5067 5068 residx = ctl_get_initindex(&ctsio->io_hdr.nexus); 5069 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5070 5071 /* 5072 * XXX KDM right now, we only support LUN reservation. We don't 5073 * support 3rd party reservations, or extent reservations, which 5074 * might actually need the parameter list. If we've gotten this 5075 * far, we've got a LUN reservation. Anything else got kicked out 5076 * above. So, according to SPC, ignore the length. 5077 */ 5078 5079 mtx_lock(&lun->lun_lock); 5080 5081 /* 5082 * According to SPC, it is not an error for an intiator to attempt 5083 * to release a reservation on a LUN that isn't reserved, or that 5084 * is reserved by another initiator. The reservation can only be 5085 * released, though, by the initiator who made it or by one of 5086 * several reset type events. 5087 */ 5088 if ((lun->flags & CTL_LUN_RESERVED) && (lun->res_idx == residx)) 5089 lun->flags &= ~CTL_LUN_RESERVED; 5090 5091 mtx_unlock(&lun->lun_lock); 5092 5093 ctl_set_success(ctsio); 5094 ctl_done((union ctl_io *)ctsio); 5095 return (CTL_RETVAL_COMPLETE); 5096} 5097 5098int 5099ctl_scsi_reserve(struct ctl_scsiio *ctsio) 5100{ 5101 struct ctl_lun *lun; 5102 uint32_t residx; 5103 5104 CTL_DEBUG_PRINT(("ctl_reserve\n")); 5105 5106 residx = ctl_get_initindex(&ctsio->io_hdr.nexus); 5107 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5108 5109 /* 5110 * XXX KDM right now, we only support LUN reservation. We don't 5111 * support 3rd party reservations, or extent reservations, which 5112 * might actually need the parameter list. If we've gotten this 5113 * far, we've got a LUN reservation. Anything else got kicked out 5114 * above. So, according to SPC, ignore the length. 5115 */ 5116 5117 mtx_lock(&lun->lun_lock); 5118 if ((lun->flags & CTL_LUN_RESERVED) && (lun->res_idx != residx)) { 5119 ctl_set_reservation_conflict(ctsio); 5120 goto bailout; 5121 } 5122 5123 /* SPC-3 exceptions to SPC-2 RESERVE and RELEASE behavior. */ 5124 if (lun->flags & CTL_LUN_PR_RESERVED) { 5125 ctl_set_success(ctsio); 5126 goto bailout; 5127 } 5128 5129 lun->flags |= CTL_LUN_RESERVED; 5130 lun->res_idx = residx; 5131 ctl_set_success(ctsio); 5132 5133bailout: 5134 mtx_unlock(&lun->lun_lock); 5135 ctl_done((union ctl_io *)ctsio); 5136 return (CTL_RETVAL_COMPLETE); 5137} 5138 5139int 5140ctl_start_stop(struct ctl_scsiio *ctsio) 5141{ 5142 struct scsi_start_stop_unit *cdb; 5143 struct ctl_lun *lun; 5144 int retval; 5145 5146 CTL_DEBUG_PRINT(("ctl_start_stop\n")); 5147 5148 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5149 cdb = (struct scsi_start_stop_unit *)ctsio->cdb; 5150 5151 if ((cdb->how & SSS_PC_MASK) == 0) { 5152 if ((lun->flags & CTL_LUN_PR_RESERVED) && 5153 (cdb->how & SSS_START) == 0) { 5154 uint32_t residx; 5155 5156 residx = ctl_get_initindex(&ctsio->io_hdr.nexus); 5157 if (ctl_get_prkey(lun, residx) == 0 || 5158 (lun->pr_res_idx != residx && lun->pr_res_type < 4)) { 5159 5160 ctl_set_reservation_conflict(ctsio); 5161 ctl_done((union ctl_io *)ctsio); 5162 return (CTL_RETVAL_COMPLETE); 5163 } 5164 } 5165 5166 if ((cdb->how & SSS_LOEJ) && 5167 (lun->flags & CTL_LUN_REMOVABLE) == 0) { 5168 ctl_set_invalid_field(ctsio, 5169 /*sks_valid*/ 1, 5170 /*command*/ 1, 5171 /*field*/ 4, 5172 /*bit_valid*/ 1, 5173 /*bit*/ 1); 5174 ctl_done((union ctl_io *)ctsio); 5175 return (CTL_RETVAL_COMPLETE); 5176 } 5177 5178 if ((cdb->how & SSS_START) == 0 && (cdb->how & SSS_LOEJ) && 5179 lun->prevent_count > 0) { 5180 /* "Medium removal prevented" */ 5181 ctl_set_sense(ctsio, /*current_error*/ 1, 5182 /*sense_key*/(lun->flags & CTL_LUN_NO_MEDIA) ? 5183 SSD_KEY_NOT_READY : SSD_KEY_ILLEGAL_REQUEST, 5184 /*asc*/ 0x53, /*ascq*/ 0x02, SSD_ELEM_NONE); 5185 ctl_done((union ctl_io *)ctsio); 5186 return (CTL_RETVAL_COMPLETE); 5187 } 5188 } 5189 5190 retval = lun->backend->config_write((union ctl_io *)ctsio); 5191 return (retval); 5192} 5193 5194int 5195ctl_prevent_allow(struct ctl_scsiio *ctsio) 5196{ 5197 struct ctl_lun *lun; 5198 struct scsi_prevent *cdb; 5199 int retval; 5200 uint32_t initidx; 5201 5202 CTL_DEBUG_PRINT(("ctl_prevent_allow\n")); 5203 5204 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5205 cdb = (struct scsi_prevent *)ctsio->cdb; 5206 5207 if ((lun->flags & CTL_LUN_REMOVABLE) == 0) { 5208 ctl_set_invalid_opcode(ctsio); 5209 ctl_done((union ctl_io *)ctsio); 5210 return (CTL_RETVAL_COMPLETE); 5211 } 5212 5213 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 5214 mtx_lock(&lun->lun_lock); 5215 if ((cdb->how & PR_PREVENT) && 5216 ctl_is_set(lun->prevent, initidx) == 0) { 5217 ctl_set_mask(lun->prevent, initidx); 5218 lun->prevent_count++; 5219 } else if ((cdb->how & PR_PREVENT) == 0 && 5220 ctl_is_set(lun->prevent, initidx)) { 5221 ctl_clear_mask(lun->prevent, initidx); 5222 lun->prevent_count--; 5223 } 5224 mtx_unlock(&lun->lun_lock); 5225 retval = lun->backend->config_write((union ctl_io *)ctsio); 5226 return (retval); 5227} 5228 5229/* 5230 * We support the SYNCHRONIZE CACHE command (10 and 16 byte versions), but 5231 * we don't really do anything with the LBA and length fields if the user 5232 * passes them in. Instead we'll just flush out the cache for the entire 5233 * LUN. 5234 */ 5235int 5236ctl_sync_cache(struct ctl_scsiio *ctsio) 5237{ 5238 struct ctl_lun *lun; 5239 struct ctl_softc *softc; 5240 struct ctl_lba_len_flags *lbalen; 5241 uint64_t starting_lba; 5242 uint32_t block_count; 5243 int retval; 5244 uint8_t byte2; 5245 5246 CTL_DEBUG_PRINT(("ctl_sync_cache\n")); 5247 5248 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5249 softc = lun->ctl_softc; 5250 retval = 0; 5251 5252 switch (ctsio->cdb[0]) { 5253 case SYNCHRONIZE_CACHE: { 5254 struct scsi_sync_cache *cdb; 5255 cdb = (struct scsi_sync_cache *)ctsio->cdb; 5256 5257 starting_lba = scsi_4btoul(cdb->begin_lba); 5258 block_count = scsi_2btoul(cdb->lb_count); 5259 byte2 = cdb->byte2; 5260 break; 5261 } 5262 case SYNCHRONIZE_CACHE_16: { 5263 struct scsi_sync_cache_16 *cdb; 5264 cdb = (struct scsi_sync_cache_16 *)ctsio->cdb; 5265 5266 starting_lba = scsi_8btou64(cdb->begin_lba); 5267 block_count = scsi_4btoul(cdb->lb_count); 5268 byte2 = cdb->byte2; 5269 break; 5270 } 5271 default: 5272 ctl_set_invalid_opcode(ctsio); 5273 ctl_done((union ctl_io *)ctsio); 5274 goto bailout; 5275 break; /* NOTREACHED */ 5276 } 5277 5278 /* 5279 * We check the LBA and length, but don't do anything with them. 5280 * A SYNCHRONIZE CACHE will cause the entire cache for this lun to 5281 * get flushed. This check will just help satisfy anyone who wants 5282 * to see an error for an out of range LBA. 5283 */ 5284 if ((starting_lba + block_count) > (lun->be_lun->maxlba + 1)) { 5285 ctl_set_lba_out_of_range(ctsio); 5286 ctl_done((union ctl_io *)ctsio); 5287 goto bailout; 5288 } 5289 5290 lbalen = (struct ctl_lba_len_flags *)&ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 5291 lbalen->lba = starting_lba; 5292 lbalen->len = block_count; 5293 lbalen->flags = byte2; 5294 retval = lun->backend->config_write((union ctl_io *)ctsio); 5295 5296bailout: 5297 return (retval); 5298} 5299 5300int 5301ctl_format(struct ctl_scsiio *ctsio) 5302{ 5303 struct scsi_format *cdb; 5304 struct ctl_lun *lun; 5305 int length, defect_list_len; 5306 5307 CTL_DEBUG_PRINT(("ctl_format\n")); 5308 5309 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5310 5311 cdb = (struct scsi_format *)ctsio->cdb; 5312 5313 length = 0; 5314 if (cdb->byte2 & SF_FMTDATA) { 5315 if (cdb->byte2 & SF_LONGLIST) 5316 length = sizeof(struct scsi_format_header_long); 5317 else 5318 length = sizeof(struct scsi_format_header_short); 5319 } 5320 5321 if (((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) 5322 && (length > 0)) { 5323 ctsio->kern_data_ptr = malloc(length, M_CTL, M_WAITOK); 5324 ctsio->kern_data_len = length; 5325 ctsio->kern_total_len = length; 5326 ctsio->kern_data_resid = 0; 5327 ctsio->kern_rel_offset = 0; 5328 ctsio->kern_sg_entries = 0; 5329 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5330 ctsio->be_move_done = ctl_config_move_done; 5331 ctl_datamove((union ctl_io *)ctsio); 5332 5333 return (CTL_RETVAL_COMPLETE); 5334 } 5335 5336 defect_list_len = 0; 5337 5338 if (cdb->byte2 & SF_FMTDATA) { 5339 if (cdb->byte2 & SF_LONGLIST) { 5340 struct scsi_format_header_long *header; 5341 5342 header = (struct scsi_format_header_long *) 5343 ctsio->kern_data_ptr; 5344 5345 defect_list_len = scsi_4btoul(header->defect_list_len); 5346 if (defect_list_len != 0) { 5347 ctl_set_invalid_field(ctsio, 5348 /*sks_valid*/ 1, 5349 /*command*/ 0, 5350 /*field*/ 2, 5351 /*bit_valid*/ 0, 5352 /*bit*/ 0); 5353 goto bailout; 5354 } 5355 } else { 5356 struct scsi_format_header_short *header; 5357 5358 header = (struct scsi_format_header_short *) 5359 ctsio->kern_data_ptr; 5360 5361 defect_list_len = scsi_2btoul(header->defect_list_len); 5362 if (defect_list_len != 0) { 5363 ctl_set_invalid_field(ctsio, 5364 /*sks_valid*/ 1, 5365 /*command*/ 0, 5366 /*field*/ 2, 5367 /*bit_valid*/ 0, 5368 /*bit*/ 0); 5369 goto bailout; 5370 } 5371 } 5372 } 5373 5374 ctl_set_success(ctsio); 5375bailout: 5376 5377 if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) { 5378 free(ctsio->kern_data_ptr, M_CTL); 5379 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED; 5380 } 5381 5382 ctl_done((union ctl_io *)ctsio); 5383 return (CTL_RETVAL_COMPLETE); 5384} 5385 5386int 5387ctl_read_buffer(struct ctl_scsiio *ctsio) 5388{ 5389 struct ctl_lun *lun; 5390 uint64_t buffer_offset; 5391 uint32_t len; 5392 uint8_t byte2; 5393 static uint8_t descr[4]; 5394 static uint8_t echo_descr[4] = { 0 }; 5395 5396 CTL_DEBUG_PRINT(("ctl_read_buffer\n")); 5397 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5398 switch (ctsio->cdb[0]) { 5399 case READ_BUFFER: { 5400 struct scsi_read_buffer *cdb; 5401 5402 cdb = (struct scsi_read_buffer *)ctsio->cdb; 5403 buffer_offset = scsi_3btoul(cdb->offset); 5404 len = scsi_3btoul(cdb->length); 5405 byte2 = cdb->byte2; 5406 break; 5407 } 5408 case READ_BUFFER_16: { 5409 struct scsi_read_buffer_16 *cdb; 5410 5411 cdb = (struct scsi_read_buffer_16 *)ctsio->cdb; 5412 buffer_offset = scsi_8btou64(cdb->offset); 5413 len = scsi_4btoul(cdb->length); 5414 byte2 = cdb->byte2; 5415 break; 5416 } 5417 default: /* This shouldn't happen. */ 5418 ctl_set_invalid_opcode(ctsio); 5419 ctl_done((union ctl_io *)ctsio); 5420 return (CTL_RETVAL_COMPLETE); 5421 } 5422 5423 if ((byte2 & RWB_MODE) != RWB_MODE_DATA && 5424 (byte2 & RWB_MODE) != RWB_MODE_ECHO_DESCR && 5425 (byte2 & RWB_MODE) != RWB_MODE_DESCR) { 5426 ctl_set_invalid_field(ctsio, 5427 /*sks_valid*/ 1, 5428 /*command*/ 1, 5429 /*field*/ 1, 5430 /*bit_valid*/ 1, 5431 /*bit*/ 4); 5432 ctl_done((union ctl_io *)ctsio); 5433 return (CTL_RETVAL_COMPLETE); 5434 } 5435 5436 if (buffer_offset > CTL_WRITE_BUFFER_SIZE || 5437 buffer_offset + len > CTL_WRITE_BUFFER_SIZE) { 5438 ctl_set_invalid_field(ctsio, 5439 /*sks_valid*/ 1, 5440 /*command*/ 1, 5441 /*field*/ 6, 5442 /*bit_valid*/ 0, 5443 /*bit*/ 0); 5444 ctl_done((union ctl_io *)ctsio); 5445 return (CTL_RETVAL_COMPLETE); 5446 } 5447 5448 if ((byte2 & RWB_MODE) == RWB_MODE_DESCR) { 5449 descr[0] = 0; 5450 scsi_ulto3b(CTL_WRITE_BUFFER_SIZE, &descr[1]); 5451 ctsio->kern_data_ptr = descr; 5452 len = min(len, sizeof(descr)); 5453 } else if ((byte2 & RWB_MODE) == RWB_MODE_ECHO_DESCR) { 5454 ctsio->kern_data_ptr = echo_descr; 5455 len = min(len, sizeof(echo_descr)); 5456 } else { 5457 if (lun->write_buffer == NULL) { 5458 lun->write_buffer = malloc(CTL_WRITE_BUFFER_SIZE, 5459 M_CTL, M_WAITOK); 5460 } 5461 ctsio->kern_data_ptr = lun->write_buffer + buffer_offset; 5462 } 5463 ctsio->kern_data_len = len; 5464 ctsio->kern_total_len = len; 5465 ctsio->kern_data_resid = 0; 5466 ctsio->kern_rel_offset = 0; 5467 ctsio->kern_sg_entries = 0; 5468 ctl_set_success(ctsio); 5469 ctsio->be_move_done = ctl_config_move_done; 5470 ctl_datamove((union ctl_io *)ctsio); 5471 return (CTL_RETVAL_COMPLETE); 5472} 5473 5474int 5475ctl_write_buffer(struct ctl_scsiio *ctsio) 5476{ 5477 struct scsi_write_buffer *cdb; 5478 struct ctl_lun *lun; 5479 int buffer_offset, len; 5480 5481 CTL_DEBUG_PRINT(("ctl_write_buffer\n")); 5482 5483 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5484 cdb = (struct scsi_write_buffer *)ctsio->cdb; 5485 5486 if ((cdb->byte2 & RWB_MODE) != RWB_MODE_DATA) { 5487 ctl_set_invalid_field(ctsio, 5488 /*sks_valid*/ 1, 5489 /*command*/ 1, 5490 /*field*/ 1, 5491 /*bit_valid*/ 1, 5492 /*bit*/ 4); 5493 ctl_done((union ctl_io *)ctsio); 5494 return (CTL_RETVAL_COMPLETE); 5495 } 5496 5497 len = scsi_3btoul(cdb->length); 5498 buffer_offset = scsi_3btoul(cdb->offset); 5499 5500 if (buffer_offset + len > CTL_WRITE_BUFFER_SIZE) { 5501 ctl_set_invalid_field(ctsio, 5502 /*sks_valid*/ 1, 5503 /*command*/ 1, 5504 /*field*/ 6, 5505 /*bit_valid*/ 0, 5506 /*bit*/ 0); 5507 ctl_done((union ctl_io *)ctsio); 5508 return (CTL_RETVAL_COMPLETE); 5509 } 5510 5511 /* 5512 * If we've got a kernel request that hasn't been malloced yet, 5513 * malloc it and tell the caller the data buffer is here. 5514 */ 5515 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 5516 if (lun->write_buffer == NULL) { 5517 lun->write_buffer = malloc(CTL_WRITE_BUFFER_SIZE, 5518 M_CTL, M_WAITOK); 5519 } 5520 ctsio->kern_data_ptr = lun->write_buffer + buffer_offset; 5521 ctsio->kern_data_len = len; 5522 ctsio->kern_total_len = len; 5523 ctsio->kern_data_resid = 0; 5524 ctsio->kern_rel_offset = 0; 5525 ctsio->kern_sg_entries = 0; 5526 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5527 ctsio->be_move_done = ctl_config_move_done; 5528 ctl_datamove((union ctl_io *)ctsio); 5529 5530 return (CTL_RETVAL_COMPLETE); 5531 } 5532 5533 ctl_set_success(ctsio); 5534 ctl_done((union ctl_io *)ctsio); 5535 return (CTL_RETVAL_COMPLETE); 5536} 5537 5538int 5539ctl_write_same(struct ctl_scsiio *ctsio) 5540{ 5541 struct ctl_lun *lun; 5542 struct ctl_lba_len_flags *lbalen; 5543 uint64_t lba; 5544 uint32_t num_blocks; 5545 int len, retval; 5546 uint8_t byte2; 5547 5548 CTL_DEBUG_PRINT(("ctl_write_same\n")); 5549 5550 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5551 5552 switch (ctsio->cdb[0]) { 5553 case WRITE_SAME_10: { 5554 struct scsi_write_same_10 *cdb; 5555 5556 cdb = (struct scsi_write_same_10 *)ctsio->cdb; 5557 5558 lba = scsi_4btoul(cdb->addr); 5559 num_blocks = scsi_2btoul(cdb->length); 5560 byte2 = cdb->byte2; 5561 break; 5562 } 5563 case WRITE_SAME_16: { 5564 struct scsi_write_same_16 *cdb; 5565 5566 cdb = (struct scsi_write_same_16 *)ctsio->cdb; 5567 5568 lba = scsi_8btou64(cdb->addr); 5569 num_blocks = scsi_4btoul(cdb->length); 5570 byte2 = cdb->byte2; 5571 break; 5572 } 5573 default: 5574 /* 5575 * We got a command we don't support. This shouldn't 5576 * happen, commands should be filtered out above us. 5577 */ 5578 ctl_set_invalid_opcode(ctsio); 5579 ctl_done((union ctl_io *)ctsio); 5580 5581 return (CTL_RETVAL_COMPLETE); 5582 break; /* NOTREACHED */ 5583 } 5584 5585 /* ANCHOR flag can be used only together with UNMAP */ 5586 if ((byte2 & SWS_UNMAP) == 0 && (byte2 & SWS_ANCHOR) != 0) { 5587 ctl_set_invalid_field(ctsio, /*sks_valid*/ 1, 5588 /*command*/ 1, /*field*/ 1, /*bit_valid*/ 1, /*bit*/ 0); 5589 ctl_done((union ctl_io *)ctsio); 5590 return (CTL_RETVAL_COMPLETE); 5591 } 5592 5593 /* 5594 * The first check is to make sure we're in bounds, the second 5595 * check is to catch wrap-around problems. If the lba + num blocks 5596 * is less than the lba, then we've wrapped around and the block 5597 * range is invalid anyway. 5598 */ 5599 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 5600 || ((lba + num_blocks) < lba)) { 5601 ctl_set_lba_out_of_range(ctsio); 5602 ctl_done((union ctl_io *)ctsio); 5603 return (CTL_RETVAL_COMPLETE); 5604 } 5605 5606 /* Zero number of blocks means "to the last logical block" */ 5607 if (num_blocks == 0) { 5608 if ((lun->be_lun->maxlba + 1) - lba > UINT32_MAX) { 5609 ctl_set_invalid_field(ctsio, 5610 /*sks_valid*/ 0, 5611 /*command*/ 1, 5612 /*field*/ 0, 5613 /*bit_valid*/ 0, 5614 /*bit*/ 0); 5615 ctl_done((union ctl_io *)ctsio); 5616 return (CTL_RETVAL_COMPLETE); 5617 } 5618 num_blocks = (lun->be_lun->maxlba + 1) - lba; 5619 } 5620 5621 len = lun->be_lun->blocksize; 5622 5623 /* 5624 * If we've got a kernel request that hasn't been malloced yet, 5625 * malloc it and tell the caller the data buffer is here. 5626 */ 5627 if ((byte2 & SWS_NDOB) == 0 && 5628 (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 5629 ctsio->kern_data_ptr = malloc(len, M_CTL, M_WAITOK);; 5630 ctsio->kern_data_len = len; 5631 ctsio->kern_total_len = len; 5632 ctsio->kern_data_resid = 0; 5633 ctsio->kern_rel_offset = 0; 5634 ctsio->kern_sg_entries = 0; 5635 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5636 ctsio->be_move_done = ctl_config_move_done; 5637 ctl_datamove((union ctl_io *)ctsio); 5638 5639 return (CTL_RETVAL_COMPLETE); 5640 } 5641 5642 lbalen = (struct ctl_lba_len_flags *)&ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 5643 lbalen->lba = lba; 5644 lbalen->len = num_blocks; 5645 lbalen->flags = byte2; 5646 retval = lun->backend->config_write((union ctl_io *)ctsio); 5647 5648 return (retval); 5649} 5650 5651int 5652ctl_unmap(struct ctl_scsiio *ctsio) 5653{ 5654 struct ctl_lun *lun; 5655 struct scsi_unmap *cdb; 5656 struct ctl_ptr_len_flags *ptrlen; 5657 struct scsi_unmap_header *hdr; 5658 struct scsi_unmap_desc *buf, *end, *endnz, *range; 5659 uint64_t lba; 5660 uint32_t num_blocks; 5661 int len, retval; 5662 uint8_t byte2; 5663 5664 CTL_DEBUG_PRINT(("ctl_unmap\n")); 5665 5666 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5667 cdb = (struct scsi_unmap *)ctsio->cdb; 5668 5669 len = scsi_2btoul(cdb->length); 5670 byte2 = cdb->byte2; 5671 5672 /* 5673 * If we've got a kernel request that hasn't been malloced yet, 5674 * malloc it and tell the caller the data buffer is here. 5675 */ 5676 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 5677 ctsio->kern_data_ptr = malloc(len, M_CTL, M_WAITOK);; 5678 ctsio->kern_data_len = len; 5679 ctsio->kern_total_len = len; 5680 ctsio->kern_data_resid = 0; 5681 ctsio->kern_rel_offset = 0; 5682 ctsio->kern_sg_entries = 0; 5683 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5684 ctsio->be_move_done = ctl_config_move_done; 5685 ctl_datamove((union ctl_io *)ctsio); 5686 5687 return (CTL_RETVAL_COMPLETE); 5688 } 5689 5690 len = ctsio->kern_total_len - ctsio->kern_data_resid; 5691 hdr = (struct scsi_unmap_header *)ctsio->kern_data_ptr; 5692 if (len < sizeof (*hdr) || 5693 len < (scsi_2btoul(hdr->length) + sizeof(hdr->length)) || 5694 len < (scsi_2btoul(hdr->desc_length) + sizeof (*hdr)) || 5695 scsi_2btoul(hdr->desc_length) % sizeof(*buf) != 0) { 5696 ctl_set_invalid_field(ctsio, 5697 /*sks_valid*/ 0, 5698 /*command*/ 0, 5699 /*field*/ 0, 5700 /*bit_valid*/ 0, 5701 /*bit*/ 0); 5702 goto done; 5703 } 5704 len = scsi_2btoul(hdr->desc_length); 5705 buf = (struct scsi_unmap_desc *)(hdr + 1); 5706 end = buf + len / sizeof(*buf); 5707 5708 endnz = buf; 5709 for (range = buf; range < end; range++) { 5710 lba = scsi_8btou64(range->lba); 5711 num_blocks = scsi_4btoul(range->length); 5712 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 5713 || ((lba + num_blocks) < lba)) { 5714 ctl_set_lba_out_of_range(ctsio); 5715 ctl_done((union ctl_io *)ctsio); 5716 return (CTL_RETVAL_COMPLETE); 5717 } 5718 if (num_blocks != 0) 5719 endnz = range + 1; 5720 } 5721 5722 /* 5723 * Block backend can not handle zero last range. 5724 * Filter it out and return if there is nothing left. 5725 */ 5726 len = (uint8_t *)endnz - (uint8_t *)buf; 5727 if (len == 0) { 5728 ctl_set_success(ctsio); 5729 goto done; 5730 } 5731 5732 mtx_lock(&lun->lun_lock); 5733 ptrlen = (struct ctl_ptr_len_flags *) 5734 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 5735 ptrlen->ptr = (void *)buf; 5736 ptrlen->len = len; 5737 ptrlen->flags = byte2; 5738 ctl_check_blocked(lun); 5739 mtx_unlock(&lun->lun_lock); 5740 5741 retval = lun->backend->config_write((union ctl_io *)ctsio); 5742 return (retval); 5743 5744done: 5745 if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) { 5746 free(ctsio->kern_data_ptr, M_CTL); 5747 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED; 5748 } 5749 ctl_done((union ctl_io *)ctsio); 5750 return (CTL_RETVAL_COMPLETE); 5751} 5752 5753/* 5754 * Note that this function currently doesn't actually do anything inside 5755 * CTL to enforce things if the DQue bit is turned on. 5756 * 5757 * Also note that this function can't be used in the default case, because 5758 * the DQue bit isn't set in the changeable mask for the control mode page 5759 * anyway. This is just here as an example for how to implement a page 5760 * handler, and a placeholder in case we want to allow the user to turn 5761 * tagged queueing on and off. 5762 * 5763 * The D_SENSE bit handling is functional, however, and will turn 5764 * descriptor sense on and off for a given LUN. 5765 */ 5766int 5767ctl_control_page_handler(struct ctl_scsiio *ctsio, 5768 struct ctl_page_index *page_index, uint8_t *page_ptr) 5769{ 5770 struct scsi_control_page *current_cp, *saved_cp, *user_cp; 5771 struct ctl_lun *lun; 5772 int set_ua; 5773 uint32_t initidx; 5774 5775 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5776 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 5777 set_ua = 0; 5778 5779 user_cp = (struct scsi_control_page *)page_ptr; 5780 current_cp = (struct scsi_control_page *) 5781 (page_index->page_data + (page_index->page_len * 5782 CTL_PAGE_CURRENT)); 5783 saved_cp = (struct scsi_control_page *) 5784 (page_index->page_data + (page_index->page_len * 5785 CTL_PAGE_SAVED)); 5786 5787 mtx_lock(&lun->lun_lock); 5788 if (((current_cp->rlec & SCP_DSENSE) == 0) 5789 && ((user_cp->rlec & SCP_DSENSE) != 0)) { 5790 /* 5791 * Descriptor sense is currently turned off and the user 5792 * wants to turn it on. 5793 */ 5794 current_cp->rlec |= SCP_DSENSE; 5795 saved_cp->rlec |= SCP_DSENSE; 5796 lun->flags |= CTL_LUN_SENSE_DESC; 5797 set_ua = 1; 5798 } else if (((current_cp->rlec & SCP_DSENSE) != 0) 5799 && ((user_cp->rlec & SCP_DSENSE) == 0)) { 5800 /* 5801 * Descriptor sense is currently turned on, and the user 5802 * wants to turn it off. 5803 */ 5804 current_cp->rlec &= ~SCP_DSENSE; 5805 saved_cp->rlec &= ~SCP_DSENSE; 5806 lun->flags &= ~CTL_LUN_SENSE_DESC; 5807 set_ua = 1; 5808 } 5809 if ((current_cp->queue_flags & SCP_QUEUE_ALG_MASK) != 5810 (user_cp->queue_flags & SCP_QUEUE_ALG_MASK)) { 5811 current_cp->queue_flags &= ~SCP_QUEUE_ALG_MASK; 5812 current_cp->queue_flags |= user_cp->queue_flags & SCP_QUEUE_ALG_MASK; 5813 saved_cp->queue_flags &= ~SCP_QUEUE_ALG_MASK; 5814 saved_cp->queue_flags |= user_cp->queue_flags & SCP_QUEUE_ALG_MASK; 5815 set_ua = 1; 5816 } 5817 if ((current_cp->eca_and_aen & SCP_SWP) != 5818 (user_cp->eca_and_aen & SCP_SWP)) { 5819 current_cp->eca_and_aen &= ~SCP_SWP; 5820 current_cp->eca_and_aen |= user_cp->eca_and_aen & SCP_SWP; 5821 saved_cp->eca_and_aen &= ~SCP_SWP; 5822 saved_cp->eca_and_aen |= user_cp->eca_and_aen & SCP_SWP; 5823 set_ua = 1; 5824 } 5825 if (set_ua != 0) 5826 ctl_est_ua_all(lun, initidx, CTL_UA_MODE_CHANGE); 5827 mtx_unlock(&lun->lun_lock); 5828 if (set_ua) { 5829 ctl_isc_announce_mode(lun, 5830 ctl_get_initindex(&ctsio->io_hdr.nexus), 5831 page_index->page_code, page_index->subpage); 5832 } 5833 return (0); 5834} 5835 5836int 5837ctl_caching_sp_handler(struct ctl_scsiio *ctsio, 5838 struct ctl_page_index *page_index, uint8_t *page_ptr) 5839{ 5840 struct scsi_caching_page *current_cp, *saved_cp, *user_cp; 5841 struct ctl_lun *lun; 5842 int set_ua; 5843 uint32_t initidx; 5844 5845 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5846 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 5847 set_ua = 0; 5848 5849 user_cp = (struct scsi_caching_page *)page_ptr; 5850 current_cp = (struct scsi_caching_page *) 5851 (page_index->page_data + (page_index->page_len * 5852 CTL_PAGE_CURRENT)); 5853 saved_cp = (struct scsi_caching_page *) 5854 (page_index->page_data + (page_index->page_len * 5855 CTL_PAGE_SAVED)); 5856 5857 mtx_lock(&lun->lun_lock); 5858 if ((current_cp->flags1 & (SCP_WCE | SCP_RCD)) != 5859 (user_cp->flags1 & (SCP_WCE | SCP_RCD))) { 5860 current_cp->flags1 &= ~(SCP_WCE | SCP_RCD); 5861 current_cp->flags1 |= user_cp->flags1 & (SCP_WCE | SCP_RCD); 5862 saved_cp->flags1 &= ~(SCP_WCE | SCP_RCD); 5863 saved_cp->flags1 |= user_cp->flags1 & (SCP_WCE | SCP_RCD); 5864 set_ua = 1; 5865 } 5866 if (set_ua != 0) 5867 ctl_est_ua_all(lun, initidx, CTL_UA_MODE_CHANGE); 5868 mtx_unlock(&lun->lun_lock); 5869 if (set_ua) { 5870 ctl_isc_announce_mode(lun, 5871 ctl_get_initindex(&ctsio->io_hdr.nexus), 5872 page_index->page_code, page_index->subpage); 5873 } 5874 return (0); 5875} 5876 5877int 5878ctl_debugconf_sp_select_handler(struct ctl_scsiio *ctsio, 5879 struct ctl_page_index *page_index, 5880 uint8_t *page_ptr) 5881{ 5882 uint8_t *c; 5883 int i; 5884 5885 c = ((struct copan_debugconf_subpage *)page_ptr)->ctl_time_io_secs; 5886 ctl_time_io_secs = 5887 (c[0] << 8) | 5888 (c[1] << 0) | 5889 0; 5890 CTL_DEBUG_PRINT(("set ctl_time_io_secs to %d\n", ctl_time_io_secs)); 5891 printf("set ctl_time_io_secs to %d\n", ctl_time_io_secs); 5892 printf("page data:"); 5893 for (i=0; i<8; i++) 5894 printf(" %.2x",page_ptr[i]); 5895 printf("\n"); 5896 return (0); 5897} 5898 5899int 5900ctl_debugconf_sp_sense_handler(struct ctl_scsiio *ctsio, 5901 struct ctl_page_index *page_index, 5902 int pc) 5903{ 5904 struct copan_debugconf_subpage *page; 5905 5906 page = (struct copan_debugconf_subpage *)page_index->page_data + 5907 (page_index->page_len * pc); 5908 5909 switch (pc) { 5910 case SMS_PAGE_CTRL_CHANGEABLE >> 6: 5911 case SMS_PAGE_CTRL_DEFAULT >> 6: 5912 case SMS_PAGE_CTRL_SAVED >> 6: 5913 /* 5914 * We don't update the changable or default bits for this page. 5915 */ 5916 break; 5917 case SMS_PAGE_CTRL_CURRENT >> 6: 5918 page->ctl_time_io_secs[0] = ctl_time_io_secs >> 8; 5919 page->ctl_time_io_secs[1] = ctl_time_io_secs >> 0; 5920 break; 5921 default: 5922 break; 5923 } 5924 return (0); 5925} 5926 5927 5928static int 5929ctl_do_mode_select(union ctl_io *io) 5930{ 5931 struct scsi_mode_page_header *page_header; 5932 struct ctl_page_index *page_index; 5933 struct ctl_scsiio *ctsio; 5934 int page_len, page_len_offset, page_len_size; 5935 union ctl_modepage_info *modepage_info; 5936 struct ctl_lun *lun; 5937 int *len_left, *len_used; 5938 int retval, i; 5939 5940 ctsio = &io->scsiio; 5941 page_index = NULL; 5942 page_len = 0; 5943 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5944 5945 modepage_info = (union ctl_modepage_info *) 5946 ctsio->io_hdr.ctl_private[CTL_PRIV_MODEPAGE].bytes; 5947 len_left = &modepage_info->header.len_left; 5948 len_used = &modepage_info->header.len_used; 5949 5950do_next_page: 5951 5952 page_header = (struct scsi_mode_page_header *) 5953 (ctsio->kern_data_ptr + *len_used); 5954 5955 if (*len_left == 0) { 5956 free(ctsio->kern_data_ptr, M_CTL); 5957 ctl_set_success(ctsio); 5958 ctl_done((union ctl_io *)ctsio); 5959 return (CTL_RETVAL_COMPLETE); 5960 } else if (*len_left < sizeof(struct scsi_mode_page_header)) { 5961 5962 free(ctsio->kern_data_ptr, M_CTL); 5963 ctl_set_param_len_error(ctsio); 5964 ctl_done((union ctl_io *)ctsio); 5965 return (CTL_RETVAL_COMPLETE); 5966 5967 } else if ((page_header->page_code & SMPH_SPF) 5968 && (*len_left < sizeof(struct scsi_mode_page_header_sp))) { 5969 5970 free(ctsio->kern_data_ptr, M_CTL); 5971 ctl_set_param_len_error(ctsio); 5972 ctl_done((union ctl_io *)ctsio); 5973 return (CTL_RETVAL_COMPLETE); 5974 } 5975 5976 5977 /* 5978 * XXX KDM should we do something with the block descriptor? 5979 */ 5980 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 5981 page_index = &lun->mode_pages.index[i]; 5982 if (lun->be_lun->lun_type == T_DIRECT && 5983 (page_index->page_flags & CTL_PAGE_FLAG_DIRECT) == 0) 5984 continue; 5985 if (lun->be_lun->lun_type == T_PROCESSOR && 5986 (page_index->page_flags & CTL_PAGE_FLAG_PROC) == 0) 5987 continue; 5988 if (lun->be_lun->lun_type == T_CDROM && 5989 (page_index->page_flags & CTL_PAGE_FLAG_CDROM) == 0) 5990 continue; 5991 5992 if ((page_index->page_code & SMPH_PC_MASK) != 5993 (page_header->page_code & SMPH_PC_MASK)) 5994 continue; 5995 5996 /* 5997 * If neither page has a subpage code, then we've got a 5998 * match. 5999 */ 6000 if (((page_index->page_code & SMPH_SPF) == 0) 6001 && ((page_header->page_code & SMPH_SPF) == 0)) { 6002 page_len = page_header->page_length; 6003 break; 6004 } 6005 6006 /* 6007 * If both pages have subpages, then the subpage numbers 6008 * have to match. 6009 */ 6010 if ((page_index->page_code & SMPH_SPF) 6011 && (page_header->page_code & SMPH_SPF)) { 6012 struct scsi_mode_page_header_sp *sph; 6013 6014 sph = (struct scsi_mode_page_header_sp *)page_header; 6015 if (page_index->subpage == sph->subpage) { 6016 page_len = scsi_2btoul(sph->page_length); 6017 break; 6018 } 6019 } 6020 } 6021 6022 /* 6023 * If we couldn't find the page, or if we don't have a mode select 6024 * handler for it, send back an error to the user. 6025 */ 6026 if ((i >= CTL_NUM_MODE_PAGES) 6027 || (page_index->select_handler == NULL)) { 6028 ctl_set_invalid_field(ctsio, 6029 /*sks_valid*/ 1, 6030 /*command*/ 0, 6031 /*field*/ *len_used, 6032 /*bit_valid*/ 0, 6033 /*bit*/ 0); 6034 free(ctsio->kern_data_ptr, M_CTL); 6035 ctl_done((union ctl_io *)ctsio); 6036 return (CTL_RETVAL_COMPLETE); 6037 } 6038 6039 if (page_index->page_code & SMPH_SPF) { 6040 page_len_offset = 2; 6041 page_len_size = 2; 6042 } else { 6043 page_len_size = 1; 6044 page_len_offset = 1; 6045 } 6046 6047 /* 6048 * If the length the initiator gives us isn't the one we specify in 6049 * the mode page header, or if they didn't specify enough data in 6050 * the CDB to avoid truncating this page, kick out the request. 6051 */ 6052 if ((page_len != (page_index->page_len - page_len_offset - 6053 page_len_size)) 6054 || (*len_left < page_index->page_len)) { 6055 6056 6057 ctl_set_invalid_field(ctsio, 6058 /*sks_valid*/ 1, 6059 /*command*/ 0, 6060 /*field*/ *len_used + page_len_offset, 6061 /*bit_valid*/ 0, 6062 /*bit*/ 0); 6063 free(ctsio->kern_data_ptr, M_CTL); 6064 ctl_done((union ctl_io *)ctsio); 6065 return (CTL_RETVAL_COMPLETE); 6066 } 6067 6068 /* 6069 * Run through the mode page, checking to make sure that the bits 6070 * the user changed are actually legal for him to change. 6071 */ 6072 for (i = 0; i < page_index->page_len; i++) { 6073 uint8_t *user_byte, *change_mask, *current_byte; 6074 int bad_bit; 6075 int j; 6076 6077 user_byte = (uint8_t *)page_header + i; 6078 change_mask = page_index->page_data + 6079 (page_index->page_len * CTL_PAGE_CHANGEABLE) + i; 6080 current_byte = page_index->page_data + 6081 (page_index->page_len * CTL_PAGE_CURRENT) + i; 6082 6083 /* 6084 * Check to see whether the user set any bits in this byte 6085 * that he is not allowed to set. 6086 */ 6087 if ((*user_byte & ~(*change_mask)) == 6088 (*current_byte & ~(*change_mask))) 6089 continue; 6090 6091 /* 6092 * Go through bit by bit to determine which one is illegal. 6093 */ 6094 bad_bit = 0; 6095 for (j = 7; j >= 0; j--) { 6096 if ((((1 << i) & ~(*change_mask)) & *user_byte) != 6097 (((1 << i) & ~(*change_mask)) & *current_byte)) { 6098 bad_bit = i; 6099 break; 6100 } 6101 } 6102 ctl_set_invalid_field(ctsio, 6103 /*sks_valid*/ 1, 6104 /*command*/ 0, 6105 /*field*/ *len_used + i, 6106 /*bit_valid*/ 1, 6107 /*bit*/ bad_bit); 6108 free(ctsio->kern_data_ptr, M_CTL); 6109 ctl_done((union ctl_io *)ctsio); 6110 return (CTL_RETVAL_COMPLETE); 6111 } 6112 6113 /* 6114 * Decrement these before we call the page handler, since we may 6115 * end up getting called back one way or another before the handler 6116 * returns to this context. 6117 */ 6118 *len_left -= page_index->page_len; 6119 *len_used += page_index->page_len; 6120 6121 retval = page_index->select_handler(ctsio, page_index, 6122 (uint8_t *)page_header); 6123 6124 /* 6125 * If the page handler returns CTL_RETVAL_QUEUED, then we need to 6126 * wait until this queued command completes to finish processing 6127 * the mode page. If it returns anything other than 6128 * CTL_RETVAL_COMPLETE (e.g. CTL_RETVAL_ERROR), then it should have 6129 * already set the sense information, freed the data pointer, and 6130 * completed the io for us. 6131 */ 6132 if (retval != CTL_RETVAL_COMPLETE) 6133 goto bailout_no_done; 6134 6135 /* 6136 * If the initiator sent us more than one page, parse the next one. 6137 */ 6138 if (*len_left > 0) 6139 goto do_next_page; 6140 6141 ctl_set_success(ctsio); 6142 free(ctsio->kern_data_ptr, M_CTL); 6143 ctl_done((union ctl_io *)ctsio); 6144 6145bailout_no_done: 6146 6147 return (CTL_RETVAL_COMPLETE); 6148 6149} 6150 6151int 6152ctl_mode_select(struct ctl_scsiio *ctsio) 6153{ 6154 int param_len, pf, sp; 6155 int header_size, bd_len; 6156 union ctl_modepage_info *modepage_info; 6157 6158 switch (ctsio->cdb[0]) { 6159 case MODE_SELECT_6: { 6160 struct scsi_mode_select_6 *cdb; 6161 6162 cdb = (struct scsi_mode_select_6 *)ctsio->cdb; 6163 6164 pf = (cdb->byte2 & SMS_PF) ? 1 : 0; 6165 sp = (cdb->byte2 & SMS_SP) ? 1 : 0; 6166 param_len = cdb->length; 6167 header_size = sizeof(struct scsi_mode_header_6); 6168 break; 6169 } 6170 case MODE_SELECT_10: { 6171 struct scsi_mode_select_10 *cdb; 6172 6173 cdb = (struct scsi_mode_select_10 *)ctsio->cdb; 6174 6175 pf = (cdb->byte2 & SMS_PF) ? 1 : 0; 6176 sp = (cdb->byte2 & SMS_SP) ? 1 : 0; 6177 param_len = scsi_2btoul(cdb->length); 6178 header_size = sizeof(struct scsi_mode_header_10); 6179 break; 6180 } 6181 default: 6182 ctl_set_invalid_opcode(ctsio); 6183 ctl_done((union ctl_io *)ctsio); 6184 return (CTL_RETVAL_COMPLETE); 6185 } 6186 6187 /* 6188 * From SPC-3: 6189 * "A parameter list length of zero indicates that the Data-Out Buffer 6190 * shall be empty. This condition shall not be considered as an error." 6191 */ 6192 if (param_len == 0) { 6193 ctl_set_success(ctsio); 6194 ctl_done((union ctl_io *)ctsio); 6195 return (CTL_RETVAL_COMPLETE); 6196 } 6197 6198 /* 6199 * Since we'll hit this the first time through, prior to 6200 * allocation, we don't need to free a data buffer here. 6201 */ 6202 if (param_len < header_size) { 6203 ctl_set_param_len_error(ctsio); 6204 ctl_done((union ctl_io *)ctsio); 6205 return (CTL_RETVAL_COMPLETE); 6206 } 6207 6208 /* 6209 * Allocate the data buffer and grab the user's data. In theory, 6210 * we shouldn't have to sanity check the parameter list length here 6211 * because the maximum size is 64K. We should be able to malloc 6212 * that much without too many problems. 6213 */ 6214 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 6215 ctsio->kern_data_ptr = malloc(param_len, M_CTL, M_WAITOK); 6216 ctsio->kern_data_len = param_len; 6217 ctsio->kern_total_len = param_len; 6218 ctsio->kern_data_resid = 0; 6219 ctsio->kern_rel_offset = 0; 6220 ctsio->kern_sg_entries = 0; 6221 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6222 ctsio->be_move_done = ctl_config_move_done; 6223 ctl_datamove((union ctl_io *)ctsio); 6224 6225 return (CTL_RETVAL_COMPLETE); 6226 } 6227 6228 switch (ctsio->cdb[0]) { 6229 case MODE_SELECT_6: { 6230 struct scsi_mode_header_6 *mh6; 6231 6232 mh6 = (struct scsi_mode_header_6 *)ctsio->kern_data_ptr; 6233 bd_len = mh6->blk_desc_len; 6234 break; 6235 } 6236 case MODE_SELECT_10: { 6237 struct scsi_mode_header_10 *mh10; 6238 6239 mh10 = (struct scsi_mode_header_10 *)ctsio->kern_data_ptr; 6240 bd_len = scsi_2btoul(mh10->blk_desc_len); 6241 break; 6242 } 6243 default: 6244 panic("%s: Invalid CDB type %#x", __func__, ctsio->cdb[0]); 6245 } 6246 6247 if (param_len < (header_size + bd_len)) { 6248 free(ctsio->kern_data_ptr, M_CTL); 6249 ctl_set_param_len_error(ctsio); 6250 ctl_done((union ctl_io *)ctsio); 6251 return (CTL_RETVAL_COMPLETE); 6252 } 6253 6254 /* 6255 * Set the IO_CONT flag, so that if this I/O gets passed to 6256 * ctl_config_write_done(), it'll get passed back to 6257 * ctl_do_mode_select() for further processing, or completion if 6258 * we're all done. 6259 */ 6260 ctsio->io_hdr.flags |= CTL_FLAG_IO_CONT; 6261 ctsio->io_cont = ctl_do_mode_select; 6262 6263 modepage_info = (union ctl_modepage_info *) 6264 ctsio->io_hdr.ctl_private[CTL_PRIV_MODEPAGE].bytes; 6265 memset(modepage_info, 0, sizeof(*modepage_info)); 6266 modepage_info->header.len_left = param_len - header_size - bd_len; 6267 modepage_info->header.len_used = header_size + bd_len; 6268 6269 return (ctl_do_mode_select((union ctl_io *)ctsio)); 6270} 6271 6272int 6273ctl_mode_sense(struct ctl_scsiio *ctsio) 6274{ 6275 struct ctl_lun *lun; 6276 int pc, page_code, dbd, llba, subpage; 6277 int alloc_len, page_len, header_len, total_len; 6278 struct scsi_mode_block_descr *block_desc; 6279 struct ctl_page_index *page_index; 6280 6281 dbd = 0; 6282 llba = 0; 6283 block_desc = NULL; 6284 6285 CTL_DEBUG_PRINT(("ctl_mode_sense\n")); 6286 6287 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6288 switch (ctsio->cdb[0]) { 6289 case MODE_SENSE_6: { 6290 struct scsi_mode_sense_6 *cdb; 6291 6292 cdb = (struct scsi_mode_sense_6 *)ctsio->cdb; 6293 6294 header_len = sizeof(struct scsi_mode_hdr_6); 6295 if (cdb->byte2 & SMS_DBD) 6296 dbd = 1; 6297 else 6298 header_len += sizeof(struct scsi_mode_block_descr); 6299 6300 pc = (cdb->page & SMS_PAGE_CTRL_MASK) >> 6; 6301 page_code = cdb->page & SMS_PAGE_CODE; 6302 subpage = cdb->subpage; 6303 alloc_len = cdb->length; 6304 break; 6305 } 6306 case MODE_SENSE_10: { 6307 struct scsi_mode_sense_10 *cdb; 6308 6309 cdb = (struct scsi_mode_sense_10 *)ctsio->cdb; 6310 6311 header_len = sizeof(struct scsi_mode_hdr_10); 6312 6313 if (cdb->byte2 & SMS_DBD) 6314 dbd = 1; 6315 else 6316 header_len += sizeof(struct scsi_mode_block_descr); 6317 if (cdb->byte2 & SMS10_LLBAA) 6318 llba = 1; 6319 pc = (cdb->page & SMS_PAGE_CTRL_MASK) >> 6; 6320 page_code = cdb->page & SMS_PAGE_CODE; 6321 subpage = cdb->subpage; 6322 alloc_len = scsi_2btoul(cdb->length); 6323 break; 6324 } 6325 default: 6326 ctl_set_invalid_opcode(ctsio); 6327 ctl_done((union ctl_io *)ctsio); 6328 return (CTL_RETVAL_COMPLETE); 6329 break; /* NOTREACHED */ 6330 } 6331 6332 /* 6333 * We have to make a first pass through to calculate the size of 6334 * the pages that match the user's query. Then we allocate enough 6335 * memory to hold it, and actually copy the data into the buffer. 6336 */ 6337 switch (page_code) { 6338 case SMS_ALL_PAGES_PAGE: { 6339 int i; 6340 6341 page_len = 0; 6342 6343 /* 6344 * At the moment, values other than 0 and 0xff here are 6345 * reserved according to SPC-3. 6346 */ 6347 if ((subpage != SMS_SUBPAGE_PAGE_0) 6348 && (subpage != SMS_SUBPAGE_ALL)) { 6349 ctl_set_invalid_field(ctsio, 6350 /*sks_valid*/ 1, 6351 /*command*/ 1, 6352 /*field*/ 3, 6353 /*bit_valid*/ 0, 6354 /*bit*/ 0); 6355 ctl_done((union ctl_io *)ctsio); 6356 return (CTL_RETVAL_COMPLETE); 6357 } 6358 6359 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6360 page_index = &lun->mode_pages.index[i]; 6361 6362 /* Make sure the page is supported for this dev type */ 6363 if (lun->be_lun->lun_type == T_DIRECT && 6364 (page_index->page_flags & CTL_PAGE_FLAG_DIRECT) == 0) 6365 continue; 6366 if (lun->be_lun->lun_type == T_PROCESSOR && 6367 (page_index->page_flags & CTL_PAGE_FLAG_PROC) == 0) 6368 continue; 6369 if (lun->be_lun->lun_type == T_CDROM && 6370 (page_index->page_flags & CTL_PAGE_FLAG_CDROM) == 0) 6371 continue; 6372 6373 /* 6374 * We don't use this subpage if the user didn't 6375 * request all subpages. 6376 */ 6377 if ((page_index->subpage != 0) 6378 && (subpage == SMS_SUBPAGE_PAGE_0)) 6379 continue; 6380 6381#if 0 6382 printf("found page %#x len %d\n", 6383 page_index->page_code & SMPH_PC_MASK, 6384 page_index->page_len); 6385#endif 6386 page_len += page_index->page_len; 6387 } 6388 break; 6389 } 6390 default: { 6391 int i; 6392 6393 page_len = 0; 6394 6395 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6396 page_index = &lun->mode_pages.index[i]; 6397 6398 /* Make sure the page is supported for this dev type */ 6399 if (lun->be_lun->lun_type == T_DIRECT && 6400 (page_index->page_flags & CTL_PAGE_FLAG_DIRECT) == 0) 6401 continue; 6402 if (lun->be_lun->lun_type == T_PROCESSOR && 6403 (page_index->page_flags & CTL_PAGE_FLAG_PROC) == 0) 6404 continue; 6405 if (lun->be_lun->lun_type == T_CDROM && 6406 (page_index->page_flags & CTL_PAGE_FLAG_CDROM) == 0) 6407 continue; 6408 6409 /* Look for the right page code */ 6410 if ((page_index->page_code & SMPH_PC_MASK) != page_code) 6411 continue; 6412 6413 /* Look for the right subpage or the subpage wildcard*/ 6414 if ((page_index->subpage != subpage) 6415 && (subpage != SMS_SUBPAGE_ALL)) 6416 continue; 6417 6418#if 0 6419 printf("found page %#x len %d\n", 6420 page_index->page_code & SMPH_PC_MASK, 6421 page_index->page_len); 6422#endif 6423 6424 page_len += page_index->page_len; 6425 } 6426 6427 if (page_len == 0) { 6428 ctl_set_invalid_field(ctsio, 6429 /*sks_valid*/ 1, 6430 /*command*/ 1, 6431 /*field*/ 2, 6432 /*bit_valid*/ 1, 6433 /*bit*/ 5); 6434 ctl_done((union ctl_io *)ctsio); 6435 return (CTL_RETVAL_COMPLETE); 6436 } 6437 break; 6438 } 6439 } 6440 6441 total_len = header_len + page_len; 6442#if 0 6443 printf("header_len = %d, page_len = %d, total_len = %d\n", 6444 header_len, page_len, total_len); 6445#endif 6446 6447 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 6448 ctsio->kern_sg_entries = 0; 6449 ctsio->kern_data_resid = 0; 6450 ctsio->kern_rel_offset = 0; 6451 if (total_len < alloc_len) { 6452 ctsio->residual = alloc_len - total_len; 6453 ctsio->kern_data_len = total_len; 6454 ctsio->kern_total_len = total_len; 6455 } else { 6456 ctsio->residual = 0; 6457 ctsio->kern_data_len = alloc_len; 6458 ctsio->kern_total_len = alloc_len; 6459 } 6460 6461 switch (ctsio->cdb[0]) { 6462 case MODE_SENSE_6: { 6463 struct scsi_mode_hdr_6 *header; 6464 6465 header = (struct scsi_mode_hdr_6 *)ctsio->kern_data_ptr; 6466 6467 header->datalen = MIN(total_len - 1, 254); 6468 if (lun->be_lun->lun_type == T_DIRECT) { 6469 header->dev_specific = 0x10; /* DPOFUA */ 6470 if ((lun->be_lun->flags & CTL_LUN_FLAG_READONLY) || 6471 (lun->mode_pages.control_page[CTL_PAGE_CURRENT] 6472 .eca_and_aen & SCP_SWP) != 0) 6473 header->dev_specific |= 0x80; /* WP */ 6474 } 6475 if (dbd) 6476 header->block_descr_len = 0; 6477 else 6478 header->block_descr_len = 6479 sizeof(struct scsi_mode_block_descr); 6480 block_desc = (struct scsi_mode_block_descr *)&header[1]; 6481 break; 6482 } 6483 case MODE_SENSE_10: { 6484 struct scsi_mode_hdr_10 *header; 6485 int datalen; 6486 6487 header = (struct scsi_mode_hdr_10 *)ctsio->kern_data_ptr; 6488 6489 datalen = MIN(total_len - 2, 65533); 6490 scsi_ulto2b(datalen, header->datalen); 6491 if (lun->be_lun->lun_type == T_DIRECT) { 6492 header->dev_specific = 0x10; /* DPOFUA */ 6493 if ((lun->be_lun->flags & CTL_LUN_FLAG_READONLY) || 6494 (lun->mode_pages.control_page[CTL_PAGE_CURRENT] 6495 .eca_and_aen & SCP_SWP) != 0) 6496 header->dev_specific |= 0x80; /* WP */ 6497 } 6498 if (dbd) 6499 scsi_ulto2b(0, header->block_descr_len); 6500 else 6501 scsi_ulto2b(sizeof(struct scsi_mode_block_descr), 6502 header->block_descr_len); 6503 block_desc = (struct scsi_mode_block_descr *)&header[1]; 6504 break; 6505 } 6506 default: 6507 panic("%s: Invalid CDB type %#x", __func__, ctsio->cdb[0]); 6508 } 6509 6510 /* 6511 * If we've got a disk, use its blocksize in the block 6512 * descriptor. Otherwise, just set it to 0. 6513 */ 6514 if (dbd == 0) { 6515 if (lun->be_lun->lun_type == T_DIRECT) 6516 scsi_ulto3b(lun->be_lun->blocksize, 6517 block_desc->block_len); 6518 else 6519 scsi_ulto3b(0, block_desc->block_len); 6520 } 6521 6522 switch (page_code) { 6523 case SMS_ALL_PAGES_PAGE: { 6524 int i, data_used; 6525 6526 data_used = header_len; 6527 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6528 struct ctl_page_index *page_index; 6529 6530 page_index = &lun->mode_pages.index[i]; 6531 if (lun->be_lun->lun_type == T_DIRECT && 6532 (page_index->page_flags & CTL_PAGE_FLAG_DIRECT) == 0) 6533 continue; 6534 if (lun->be_lun->lun_type == T_PROCESSOR && 6535 (page_index->page_flags & CTL_PAGE_FLAG_PROC) == 0) 6536 continue; 6537 if (lun->be_lun->lun_type == T_CDROM && 6538 (page_index->page_flags & CTL_PAGE_FLAG_CDROM) == 0) 6539 continue; 6540 6541 /* 6542 * We don't use this subpage if the user didn't 6543 * request all subpages. We already checked (above) 6544 * to make sure the user only specified a subpage 6545 * of 0 or 0xff in the SMS_ALL_PAGES_PAGE case. 6546 */ 6547 if ((page_index->subpage != 0) 6548 && (subpage == SMS_SUBPAGE_PAGE_0)) 6549 continue; 6550 6551 /* 6552 * Call the handler, if it exists, to update the 6553 * page to the latest values. 6554 */ 6555 if (page_index->sense_handler != NULL) 6556 page_index->sense_handler(ctsio, page_index,pc); 6557 6558 memcpy(ctsio->kern_data_ptr + data_used, 6559 page_index->page_data + 6560 (page_index->page_len * pc), 6561 page_index->page_len); 6562 data_used += page_index->page_len; 6563 } 6564 break; 6565 } 6566 default: { 6567 int i, data_used; 6568 6569 data_used = header_len; 6570 6571 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6572 struct ctl_page_index *page_index; 6573 6574 page_index = &lun->mode_pages.index[i]; 6575 6576 /* Look for the right page code */ 6577 if ((page_index->page_code & SMPH_PC_MASK) != page_code) 6578 continue; 6579 6580 /* Look for the right subpage or the subpage wildcard*/ 6581 if ((page_index->subpage != subpage) 6582 && (subpage != SMS_SUBPAGE_ALL)) 6583 continue; 6584 6585 /* Make sure the page is supported for this dev type */ 6586 if (lun->be_lun->lun_type == T_DIRECT && 6587 (page_index->page_flags & CTL_PAGE_FLAG_DIRECT) == 0) 6588 continue; 6589 if (lun->be_lun->lun_type == T_PROCESSOR && 6590 (page_index->page_flags & CTL_PAGE_FLAG_PROC) == 0) 6591 continue; 6592 if (lun->be_lun->lun_type == T_CDROM && 6593 (page_index->page_flags & CTL_PAGE_FLAG_CDROM) == 0) 6594 continue; 6595 6596 /* 6597 * Call the handler, if it exists, to update the 6598 * page to the latest values. 6599 */ 6600 if (page_index->sense_handler != NULL) 6601 page_index->sense_handler(ctsio, page_index,pc); 6602 6603 memcpy(ctsio->kern_data_ptr + data_used, 6604 page_index->page_data + 6605 (page_index->page_len * pc), 6606 page_index->page_len); 6607 data_used += page_index->page_len; 6608 } 6609 break; 6610 } 6611 } 6612 6613 ctl_set_success(ctsio); 6614 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6615 ctsio->be_move_done = ctl_config_move_done; 6616 ctl_datamove((union ctl_io *)ctsio); 6617 return (CTL_RETVAL_COMPLETE); 6618} 6619 6620int 6621ctl_lbp_log_sense_handler(struct ctl_scsiio *ctsio, 6622 struct ctl_page_index *page_index, 6623 int pc) 6624{ 6625 struct ctl_lun *lun; 6626 struct scsi_log_param_header *phdr; 6627 uint8_t *data; 6628 uint64_t val; 6629 6630 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6631 data = page_index->page_data; 6632 6633 if (lun->backend->lun_attr != NULL && 6634 (val = lun->backend->lun_attr(lun->be_lun->be_lun, "blocksavail")) 6635 != UINT64_MAX) { 6636 phdr = (struct scsi_log_param_header *)data; 6637 scsi_ulto2b(0x0001, phdr->param_code); 6638 phdr->param_control = SLP_LBIN | SLP_LP; 6639 phdr->param_len = 8; 6640 data = (uint8_t *)(phdr + 1); 6641 scsi_ulto4b(val >> CTL_LBP_EXPONENT, data); 6642 data[4] = 0x02; /* per-pool */ 6643 data += phdr->param_len; 6644 } 6645 6646 if (lun->backend->lun_attr != NULL && 6647 (val = lun->backend->lun_attr(lun->be_lun->be_lun, "blocksused")) 6648 != UINT64_MAX) { 6649 phdr = (struct scsi_log_param_header *)data; 6650 scsi_ulto2b(0x0002, phdr->param_code); 6651 phdr->param_control = SLP_LBIN | SLP_LP; 6652 phdr->param_len = 8; 6653 data = (uint8_t *)(phdr + 1); 6654 scsi_ulto4b(val >> CTL_LBP_EXPONENT, data); 6655 data[4] = 0x01; /* per-LUN */ 6656 data += phdr->param_len; 6657 } 6658 6659 if (lun->backend->lun_attr != NULL && 6660 (val = lun->backend->lun_attr(lun->be_lun->be_lun, "poolblocksavail")) 6661 != UINT64_MAX) { 6662 phdr = (struct scsi_log_param_header *)data; 6663 scsi_ulto2b(0x00f1, phdr->param_code); 6664 phdr->param_control = SLP_LBIN | SLP_LP; 6665 phdr->param_len = 8; 6666 data = (uint8_t *)(phdr + 1); 6667 scsi_ulto4b(val >> CTL_LBP_EXPONENT, data); 6668 data[4] = 0x02; /* per-pool */ 6669 data += phdr->param_len; 6670 } 6671 6672 if (lun->backend->lun_attr != NULL && 6673 (val = lun->backend->lun_attr(lun->be_lun->be_lun, "poolblocksused")) 6674 != UINT64_MAX) { 6675 phdr = (struct scsi_log_param_header *)data; 6676 scsi_ulto2b(0x00f2, phdr->param_code); 6677 phdr->param_control = SLP_LBIN | SLP_LP; 6678 phdr->param_len = 8; 6679 data = (uint8_t *)(phdr + 1); 6680 scsi_ulto4b(val >> CTL_LBP_EXPONENT, data); 6681 data[4] = 0x02; /* per-pool */ 6682 data += phdr->param_len; 6683 } 6684 6685 page_index->page_len = data - page_index->page_data; 6686 return (0); 6687} 6688 6689int 6690ctl_sap_log_sense_handler(struct ctl_scsiio *ctsio, 6691 struct ctl_page_index *page_index, 6692 int pc) 6693{ 6694 struct ctl_lun *lun; 6695 struct stat_page *data; 6696 uint64_t rn, wn, rb, wb; 6697 struct bintime rt, wt; 6698 int i; 6699 6700 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6701 data = (struct stat_page *)page_index->page_data; 6702 6703 scsi_ulto2b(SLP_SAP, data->sap.hdr.param_code); 6704 data->sap.hdr.param_control = SLP_LBIN; 6705 data->sap.hdr.param_len = sizeof(struct scsi_log_stat_and_perf) - 6706 sizeof(struct scsi_log_param_header); 6707 rn = wn = rb = wb = 0; 6708 bintime_clear(&rt); 6709 bintime_clear(&wt); 6710 for (i = 0; i < CTL_MAX_PORTS; i++) { 6711 rn += lun->stats.ports[i].operations[CTL_STATS_READ]; 6712 wn += lun->stats.ports[i].operations[CTL_STATS_WRITE]; 6713 rb += lun->stats.ports[i].bytes[CTL_STATS_READ]; 6714 wb += lun->stats.ports[i].bytes[CTL_STATS_WRITE]; 6715 bintime_add(&rt, &lun->stats.ports[i].time[CTL_STATS_READ]); 6716 bintime_add(&wt, &lun->stats.ports[i].time[CTL_STATS_WRITE]); 6717 } 6718 scsi_u64to8b(rn, data->sap.read_num); 6719 scsi_u64to8b(wn, data->sap.write_num); 6720 if (lun->stats.blocksize > 0) { 6721 scsi_u64to8b(wb / lun->stats.blocksize, 6722 data->sap.recvieved_lba); 6723 scsi_u64to8b(rb / lun->stats.blocksize, 6724 data->sap.transmitted_lba); 6725 } 6726 scsi_u64to8b((uint64_t)rt.sec * 1000 + rt.frac / (UINT64_MAX / 1000), 6727 data->sap.read_int); 6728 scsi_u64to8b((uint64_t)wt.sec * 1000 + wt.frac / (UINT64_MAX / 1000), 6729 data->sap.write_int); 6730 scsi_u64to8b(0, data->sap.weighted_num); 6731 scsi_u64to8b(0, data->sap.weighted_int); 6732 scsi_ulto2b(SLP_IT, data->it.hdr.param_code); 6733 data->it.hdr.param_control = SLP_LBIN; 6734 data->it.hdr.param_len = sizeof(struct scsi_log_idle_time) - 6735 sizeof(struct scsi_log_param_header); 6736#ifdef CTL_TIME_IO 6737 scsi_u64to8b(lun->idle_time / SBT_1MS, data->it.idle_int); 6738#endif 6739 scsi_ulto2b(SLP_TI, data->ti.hdr.param_code); 6740 data->it.hdr.param_control = SLP_LBIN; 6741 data->ti.hdr.param_len = sizeof(struct scsi_log_time_interval) - 6742 sizeof(struct scsi_log_param_header); 6743 scsi_ulto4b(3, data->ti.exponent); 6744 scsi_ulto4b(1, data->ti.integer); 6745 6746 page_index->page_len = sizeof(*data); 6747 return (0); 6748} 6749 6750int 6751ctl_log_sense(struct ctl_scsiio *ctsio) 6752{ 6753 struct ctl_lun *lun; 6754 int i, pc, page_code, subpage; 6755 int alloc_len, total_len; 6756 struct ctl_page_index *page_index; 6757 struct scsi_log_sense *cdb; 6758 struct scsi_log_header *header; 6759 6760 CTL_DEBUG_PRINT(("ctl_log_sense\n")); 6761 6762 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6763 cdb = (struct scsi_log_sense *)ctsio->cdb; 6764 pc = (cdb->page & SLS_PAGE_CTRL_MASK) >> 6; 6765 page_code = cdb->page & SLS_PAGE_CODE; 6766 subpage = cdb->subpage; 6767 alloc_len = scsi_2btoul(cdb->length); 6768 6769 page_index = NULL; 6770 for (i = 0; i < CTL_NUM_LOG_PAGES; i++) { 6771 page_index = &lun->log_pages.index[i]; 6772 6773 /* Look for the right page code */ 6774 if ((page_index->page_code & SL_PAGE_CODE) != page_code) 6775 continue; 6776 6777 /* Look for the right subpage or the subpage wildcard*/ 6778 if (page_index->subpage != subpage) 6779 continue; 6780 6781 break; 6782 } 6783 if (i >= CTL_NUM_LOG_PAGES) { 6784 ctl_set_invalid_field(ctsio, 6785 /*sks_valid*/ 1, 6786 /*command*/ 1, 6787 /*field*/ 2, 6788 /*bit_valid*/ 0, 6789 /*bit*/ 0); 6790 ctl_done((union ctl_io *)ctsio); 6791 return (CTL_RETVAL_COMPLETE); 6792 } 6793 6794 total_len = sizeof(struct scsi_log_header) + page_index->page_len; 6795 6796 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 6797 ctsio->kern_sg_entries = 0; 6798 ctsio->kern_data_resid = 0; 6799 ctsio->kern_rel_offset = 0; 6800 if (total_len < alloc_len) { 6801 ctsio->residual = alloc_len - total_len; 6802 ctsio->kern_data_len = total_len; 6803 ctsio->kern_total_len = total_len; 6804 } else { 6805 ctsio->residual = 0; 6806 ctsio->kern_data_len = alloc_len; 6807 ctsio->kern_total_len = alloc_len; 6808 } 6809 6810 header = (struct scsi_log_header *)ctsio->kern_data_ptr; 6811 header->page = page_index->page_code; 6812 if (page_index->subpage) { 6813 header->page |= SL_SPF; 6814 header->subpage = page_index->subpage; 6815 } 6816 scsi_ulto2b(page_index->page_len, header->datalen); 6817 6818 /* 6819 * Call the handler, if it exists, to update the 6820 * page to the latest values. 6821 */ 6822 if (page_index->sense_handler != NULL) 6823 page_index->sense_handler(ctsio, page_index, pc); 6824 6825 memcpy(header + 1, page_index->page_data, page_index->page_len); 6826 6827 ctl_set_success(ctsio); 6828 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6829 ctsio->be_move_done = ctl_config_move_done; 6830 ctl_datamove((union ctl_io *)ctsio); 6831 return (CTL_RETVAL_COMPLETE); 6832} 6833 6834int 6835ctl_read_capacity(struct ctl_scsiio *ctsio) 6836{ 6837 struct scsi_read_capacity *cdb; 6838 struct scsi_read_capacity_data *data; 6839 struct ctl_lun *lun; 6840 uint32_t lba; 6841 6842 CTL_DEBUG_PRINT(("ctl_read_capacity\n")); 6843 6844 cdb = (struct scsi_read_capacity *)ctsio->cdb; 6845 6846 lba = scsi_4btoul(cdb->addr); 6847 if (((cdb->pmi & SRC_PMI) == 0) 6848 && (lba != 0)) { 6849 ctl_set_invalid_field(/*ctsio*/ ctsio, 6850 /*sks_valid*/ 1, 6851 /*command*/ 1, 6852 /*field*/ 2, 6853 /*bit_valid*/ 0, 6854 /*bit*/ 0); 6855 ctl_done((union ctl_io *)ctsio); 6856 return (CTL_RETVAL_COMPLETE); 6857 } 6858 6859 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6860 6861 ctsio->kern_data_ptr = malloc(sizeof(*data), M_CTL, M_WAITOK | M_ZERO); 6862 data = (struct scsi_read_capacity_data *)ctsio->kern_data_ptr; 6863 ctsio->residual = 0; 6864 ctsio->kern_data_len = sizeof(*data); 6865 ctsio->kern_total_len = sizeof(*data); 6866 ctsio->kern_data_resid = 0; 6867 ctsio->kern_rel_offset = 0; 6868 ctsio->kern_sg_entries = 0; 6869 6870 /* 6871 * If the maximum LBA is greater than 0xfffffffe, the user must 6872 * issue a SERVICE ACTION IN (16) command, with the read capacity 6873 * serivce action set. 6874 */ 6875 if (lun->be_lun->maxlba > 0xfffffffe) 6876 scsi_ulto4b(0xffffffff, data->addr); 6877 else 6878 scsi_ulto4b(lun->be_lun->maxlba, data->addr); 6879 6880 /* 6881 * XXX KDM this may not be 512 bytes... 6882 */ 6883 scsi_ulto4b(lun->be_lun->blocksize, data->length); 6884 6885 ctl_set_success(ctsio); 6886 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6887 ctsio->be_move_done = ctl_config_move_done; 6888 ctl_datamove((union ctl_io *)ctsio); 6889 return (CTL_RETVAL_COMPLETE); 6890} 6891 6892int 6893ctl_read_capacity_16(struct ctl_scsiio *ctsio) 6894{ 6895 struct scsi_read_capacity_16 *cdb; 6896 struct scsi_read_capacity_data_long *data; 6897 struct ctl_lun *lun; 6898 uint64_t lba; 6899 uint32_t alloc_len; 6900 6901 CTL_DEBUG_PRINT(("ctl_read_capacity_16\n")); 6902 6903 cdb = (struct scsi_read_capacity_16 *)ctsio->cdb; 6904 6905 alloc_len = scsi_4btoul(cdb->alloc_len); 6906 lba = scsi_8btou64(cdb->addr); 6907 6908 if ((cdb->reladr & SRC16_PMI) 6909 && (lba != 0)) { 6910 ctl_set_invalid_field(/*ctsio*/ ctsio, 6911 /*sks_valid*/ 1, 6912 /*command*/ 1, 6913 /*field*/ 2, 6914 /*bit_valid*/ 0, 6915 /*bit*/ 0); 6916 ctl_done((union ctl_io *)ctsio); 6917 return (CTL_RETVAL_COMPLETE); 6918 } 6919 6920 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6921 6922 ctsio->kern_data_ptr = malloc(sizeof(*data), M_CTL, M_WAITOK | M_ZERO); 6923 data = (struct scsi_read_capacity_data_long *)ctsio->kern_data_ptr; 6924 6925 if (sizeof(*data) < alloc_len) { 6926 ctsio->residual = alloc_len - sizeof(*data); 6927 ctsio->kern_data_len = sizeof(*data); 6928 ctsio->kern_total_len = sizeof(*data); 6929 } else { 6930 ctsio->residual = 0; 6931 ctsio->kern_data_len = alloc_len; 6932 ctsio->kern_total_len = alloc_len; 6933 } 6934 ctsio->kern_data_resid = 0; 6935 ctsio->kern_rel_offset = 0; 6936 ctsio->kern_sg_entries = 0; 6937 6938 scsi_u64to8b(lun->be_lun->maxlba, data->addr); 6939 /* XXX KDM this may not be 512 bytes... */ 6940 scsi_ulto4b(lun->be_lun->blocksize, data->length); 6941 data->prot_lbppbe = lun->be_lun->pblockexp & SRC16_LBPPBE; 6942 scsi_ulto2b(lun->be_lun->pblockoff & SRC16_LALBA_A, data->lalba_lbp); 6943 if (lun->be_lun->flags & CTL_LUN_FLAG_UNMAP) 6944 data->lalba_lbp[0] |= SRC16_LBPME | SRC16_LBPRZ; 6945 6946 ctl_set_success(ctsio); 6947 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6948 ctsio->be_move_done = ctl_config_move_done; 6949 ctl_datamove((union ctl_io *)ctsio); 6950 return (CTL_RETVAL_COMPLETE); 6951} 6952 6953int 6954ctl_get_lba_status(struct ctl_scsiio *ctsio) 6955{ 6956 struct scsi_get_lba_status *cdb; 6957 struct scsi_get_lba_status_data *data; 6958 struct ctl_lun *lun; 6959 struct ctl_lba_len_flags *lbalen; 6960 uint64_t lba; 6961 uint32_t alloc_len, total_len; 6962 int retval; 6963 6964 CTL_DEBUG_PRINT(("ctl_get_lba_status\n")); 6965 6966 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6967 cdb = (struct scsi_get_lba_status *)ctsio->cdb; 6968 lba = scsi_8btou64(cdb->addr); 6969 alloc_len = scsi_4btoul(cdb->alloc_len); 6970 6971 if (lba > lun->be_lun->maxlba) { 6972 ctl_set_lba_out_of_range(ctsio); 6973 ctl_done((union ctl_io *)ctsio); 6974 return (CTL_RETVAL_COMPLETE); 6975 } 6976 6977 total_len = sizeof(*data) + sizeof(data->descr[0]); 6978 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 6979 data = (struct scsi_get_lba_status_data *)ctsio->kern_data_ptr; 6980 6981 if (total_len < alloc_len) { 6982 ctsio->residual = alloc_len - total_len; 6983 ctsio->kern_data_len = total_len; 6984 ctsio->kern_total_len = total_len; 6985 } else { 6986 ctsio->residual = 0; 6987 ctsio->kern_data_len = alloc_len; 6988 ctsio->kern_total_len = alloc_len; 6989 } 6990 ctsio->kern_data_resid = 0; 6991 ctsio->kern_rel_offset = 0; 6992 ctsio->kern_sg_entries = 0; 6993 6994 /* Fill dummy data in case backend can't tell anything. */ 6995 scsi_ulto4b(4 + sizeof(data->descr[0]), data->length); 6996 scsi_u64to8b(lba, data->descr[0].addr); 6997 scsi_ulto4b(MIN(UINT32_MAX, lun->be_lun->maxlba + 1 - lba), 6998 data->descr[0].length); 6999 data->descr[0].status = 0; /* Mapped or unknown. */ 7000 7001 ctl_set_success(ctsio); 7002 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7003 ctsio->be_move_done = ctl_config_move_done; 7004 7005 lbalen = (struct ctl_lba_len_flags *)&ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 7006 lbalen->lba = lba; 7007 lbalen->len = total_len; 7008 lbalen->flags = 0; 7009 retval = lun->backend->config_read((union ctl_io *)ctsio); 7010 return (CTL_RETVAL_COMPLETE); 7011} 7012 7013int 7014ctl_read_defect(struct ctl_scsiio *ctsio) 7015{ 7016 struct scsi_read_defect_data_10 *ccb10; 7017 struct scsi_read_defect_data_12 *ccb12; 7018 struct scsi_read_defect_data_hdr_10 *data10; 7019 struct scsi_read_defect_data_hdr_12 *data12; 7020 uint32_t alloc_len, data_len; 7021 uint8_t format; 7022 7023 CTL_DEBUG_PRINT(("ctl_read_defect\n")); 7024 7025 if (ctsio->cdb[0] == READ_DEFECT_DATA_10) { 7026 ccb10 = (struct scsi_read_defect_data_10 *)&ctsio->cdb; 7027 format = ccb10->format; 7028 alloc_len = scsi_2btoul(ccb10->alloc_length); 7029 data_len = sizeof(*data10); 7030 } else { 7031 ccb12 = (struct scsi_read_defect_data_12 *)&ctsio->cdb; 7032 format = ccb12->format; 7033 alloc_len = scsi_4btoul(ccb12->alloc_length); 7034 data_len = sizeof(*data12); 7035 } 7036 if (alloc_len == 0) { 7037 ctl_set_success(ctsio); 7038 ctl_done((union ctl_io *)ctsio); 7039 return (CTL_RETVAL_COMPLETE); 7040 } 7041 7042 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 7043 if (data_len < alloc_len) { 7044 ctsio->residual = alloc_len - data_len; 7045 ctsio->kern_data_len = data_len; 7046 ctsio->kern_total_len = data_len; 7047 } else { 7048 ctsio->residual = 0; 7049 ctsio->kern_data_len = alloc_len; 7050 ctsio->kern_total_len = alloc_len; 7051 } 7052 ctsio->kern_data_resid = 0; 7053 ctsio->kern_rel_offset = 0; 7054 ctsio->kern_sg_entries = 0; 7055 7056 if (ctsio->cdb[0] == READ_DEFECT_DATA_10) { 7057 data10 = (struct scsi_read_defect_data_hdr_10 *) 7058 ctsio->kern_data_ptr; 7059 data10->format = format; 7060 scsi_ulto2b(0, data10->length); 7061 } else { 7062 data12 = (struct scsi_read_defect_data_hdr_12 *) 7063 ctsio->kern_data_ptr; 7064 data12->format = format; 7065 scsi_ulto2b(0, data12->generation); 7066 scsi_ulto4b(0, data12->length); 7067 } 7068 7069 ctl_set_success(ctsio); 7070 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7071 ctsio->be_move_done = ctl_config_move_done; 7072 ctl_datamove((union ctl_io *)ctsio); 7073 return (CTL_RETVAL_COMPLETE); 7074} 7075 7076int 7077ctl_report_tagret_port_groups(struct ctl_scsiio *ctsio) 7078{ 7079 struct scsi_maintenance_in *cdb; 7080 int retval; 7081 int alloc_len, ext, total_len = 0, g, pc, pg, gs, os; 7082 int num_target_port_groups, num_target_ports; 7083 struct ctl_lun *lun; 7084 struct ctl_softc *softc; 7085 struct ctl_port *port; 7086 struct scsi_target_group_data *rtg_ptr; 7087 struct scsi_target_group_data_extended *rtg_ext_ptr; 7088 struct scsi_target_port_group_descriptor *tpg_desc; 7089 7090 CTL_DEBUG_PRINT(("ctl_report_tagret_port_groups\n")); 7091 7092 cdb = (struct scsi_maintenance_in *)ctsio->cdb; 7093 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7094 softc = lun->ctl_softc; 7095 7096 retval = CTL_RETVAL_COMPLETE; 7097 7098 switch (cdb->byte2 & STG_PDF_MASK) { 7099 case STG_PDF_LENGTH: 7100 ext = 0; 7101 break; 7102 case STG_PDF_EXTENDED: 7103 ext = 1; 7104 break; 7105 default: 7106 ctl_set_invalid_field(/*ctsio*/ ctsio, 7107 /*sks_valid*/ 1, 7108 /*command*/ 1, 7109 /*field*/ 2, 7110 /*bit_valid*/ 1, 7111 /*bit*/ 5); 7112 ctl_done((union ctl_io *)ctsio); 7113 return(retval); 7114 } 7115 7116 if (softc->is_single) 7117 num_target_port_groups = 1; 7118 else 7119 num_target_port_groups = NUM_TARGET_PORT_GROUPS; 7120 num_target_ports = 0; 7121 mtx_lock(&softc->ctl_lock); 7122 STAILQ_FOREACH(port, &softc->port_list, links) { 7123 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 7124 continue; 7125 if (ctl_lun_map_to_port(port, lun->lun) >= CTL_MAX_LUNS) 7126 continue; 7127 num_target_ports++; 7128 } 7129 mtx_unlock(&softc->ctl_lock); 7130 7131 if (ext) 7132 total_len = sizeof(struct scsi_target_group_data_extended); 7133 else 7134 total_len = sizeof(struct scsi_target_group_data); 7135 total_len += sizeof(struct scsi_target_port_group_descriptor) * 7136 num_target_port_groups + 7137 sizeof(struct scsi_target_port_descriptor) * num_target_ports; 7138 7139 alloc_len = scsi_4btoul(cdb->length); 7140 7141 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7142 7143 ctsio->kern_sg_entries = 0; 7144 7145 if (total_len < alloc_len) { 7146 ctsio->residual = alloc_len - total_len; 7147 ctsio->kern_data_len = total_len; 7148 ctsio->kern_total_len = total_len; 7149 } else { 7150 ctsio->residual = 0; 7151 ctsio->kern_data_len = alloc_len; 7152 ctsio->kern_total_len = alloc_len; 7153 } 7154 ctsio->kern_data_resid = 0; 7155 ctsio->kern_rel_offset = 0; 7156 7157 if (ext) { 7158 rtg_ext_ptr = (struct scsi_target_group_data_extended *) 7159 ctsio->kern_data_ptr; 7160 scsi_ulto4b(total_len - 4, rtg_ext_ptr->length); 7161 rtg_ext_ptr->format_type = 0x10; 7162 rtg_ext_ptr->implicit_transition_time = 0; 7163 tpg_desc = &rtg_ext_ptr->groups[0]; 7164 } else { 7165 rtg_ptr = (struct scsi_target_group_data *) 7166 ctsio->kern_data_ptr; 7167 scsi_ulto4b(total_len - 4, rtg_ptr->length); 7168 tpg_desc = &rtg_ptr->groups[0]; 7169 } 7170 7171 mtx_lock(&softc->ctl_lock); 7172 pg = softc->port_min / softc->port_cnt; 7173 if (softc->ha_link == CTL_HA_LINK_OFFLINE) 7174 gs = TPG_ASYMMETRIC_ACCESS_UNAVAILABLE; 7175 else if (softc->ha_link == CTL_HA_LINK_UNKNOWN) 7176 gs = TPG_ASYMMETRIC_ACCESS_TRANSITIONING; 7177 else if (softc->ha_mode == CTL_HA_MODE_ACT_STBY) 7178 gs = TPG_ASYMMETRIC_ACCESS_STANDBY; 7179 else 7180 gs = TPG_ASYMMETRIC_ACCESS_NONOPTIMIZED; 7181 if (lun->flags & CTL_LUN_PRIMARY_SC) { 7182 os = gs; 7183 gs = TPG_ASYMMETRIC_ACCESS_OPTIMIZED; 7184 } else 7185 os = TPG_ASYMMETRIC_ACCESS_OPTIMIZED; 7186 for (g = 0; g < num_target_port_groups; g++) { 7187 tpg_desc->pref_state = (g == pg) ? gs : os; 7188 tpg_desc->support = TPG_AO_SUP | TPG_AN_SUP | TPG_S_SUP | 7189 TPG_U_SUP | TPG_T_SUP; 7190 scsi_ulto2b(g + 1, tpg_desc->target_port_group); 7191 tpg_desc->status = TPG_IMPLICIT; 7192 pc = 0; 7193 STAILQ_FOREACH(port, &softc->port_list, links) { 7194 if (port->targ_port < g * softc->port_cnt || 7195 port->targ_port >= (g + 1) * softc->port_cnt) 7196 continue; 7197 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 7198 continue; 7199 if (ctl_lun_map_to_port(port, lun->lun) >= CTL_MAX_LUNS) 7200 continue; 7201 scsi_ulto2b(port->targ_port, tpg_desc->descriptors[pc]. 7202 relative_target_port_identifier); 7203 pc++; 7204 } 7205 tpg_desc->target_port_count = pc; 7206 tpg_desc = (struct scsi_target_port_group_descriptor *) 7207 &tpg_desc->descriptors[pc]; 7208 } 7209 mtx_unlock(&softc->ctl_lock); 7210 7211 ctl_set_success(ctsio); 7212 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7213 ctsio->be_move_done = ctl_config_move_done; 7214 ctl_datamove((union ctl_io *)ctsio); 7215 return(retval); 7216} 7217 7218int 7219ctl_report_supported_opcodes(struct ctl_scsiio *ctsio) 7220{ 7221 struct ctl_lun *lun; 7222 struct scsi_report_supported_opcodes *cdb; 7223 const struct ctl_cmd_entry *entry, *sentry; 7224 struct scsi_report_supported_opcodes_all *all; 7225 struct scsi_report_supported_opcodes_descr *descr; 7226 struct scsi_report_supported_opcodes_one *one; 7227 int retval; 7228 int alloc_len, total_len; 7229 int opcode, service_action, i, j, num; 7230 7231 CTL_DEBUG_PRINT(("ctl_report_supported_opcodes\n")); 7232 7233 cdb = (struct scsi_report_supported_opcodes *)ctsio->cdb; 7234 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7235 7236 retval = CTL_RETVAL_COMPLETE; 7237 7238 opcode = cdb->requested_opcode; 7239 service_action = scsi_2btoul(cdb->requested_service_action); 7240 switch (cdb->options & RSO_OPTIONS_MASK) { 7241 case RSO_OPTIONS_ALL: 7242 num = 0; 7243 for (i = 0; i < 256; i++) { 7244 entry = &ctl_cmd_table[i]; 7245 if (entry->flags & CTL_CMD_FLAG_SA5) { 7246 for (j = 0; j < 32; j++) { 7247 sentry = &((const struct ctl_cmd_entry *) 7248 entry->execute)[j]; 7249 if (ctl_cmd_applicable( 7250 lun->be_lun->lun_type, sentry)) 7251 num++; 7252 } 7253 } else { 7254 if (ctl_cmd_applicable(lun->be_lun->lun_type, 7255 entry)) 7256 num++; 7257 } 7258 } 7259 total_len = sizeof(struct scsi_report_supported_opcodes_all) + 7260 num * sizeof(struct scsi_report_supported_opcodes_descr); 7261 break; 7262 case RSO_OPTIONS_OC: 7263 if (ctl_cmd_table[opcode].flags & CTL_CMD_FLAG_SA5) { 7264 ctl_set_invalid_field(/*ctsio*/ ctsio, 7265 /*sks_valid*/ 1, 7266 /*command*/ 1, 7267 /*field*/ 2, 7268 /*bit_valid*/ 1, 7269 /*bit*/ 2); 7270 ctl_done((union ctl_io *)ctsio); 7271 return (CTL_RETVAL_COMPLETE); 7272 } 7273 total_len = sizeof(struct scsi_report_supported_opcodes_one) + 32; 7274 break; 7275 case RSO_OPTIONS_OC_SA: 7276 if ((ctl_cmd_table[opcode].flags & CTL_CMD_FLAG_SA5) == 0 || 7277 service_action >= 32) { 7278 ctl_set_invalid_field(/*ctsio*/ ctsio, 7279 /*sks_valid*/ 1, 7280 /*command*/ 1, 7281 /*field*/ 2, 7282 /*bit_valid*/ 1, 7283 /*bit*/ 2); 7284 ctl_done((union ctl_io *)ctsio); 7285 return (CTL_RETVAL_COMPLETE); 7286 } 7287 total_len = sizeof(struct scsi_report_supported_opcodes_one) + 32; 7288 break; 7289 default: 7290 ctl_set_invalid_field(/*ctsio*/ ctsio, 7291 /*sks_valid*/ 1, 7292 /*command*/ 1, 7293 /*field*/ 2, 7294 /*bit_valid*/ 1, 7295 /*bit*/ 2); 7296 ctl_done((union ctl_io *)ctsio); 7297 return (CTL_RETVAL_COMPLETE); 7298 } 7299 7300 alloc_len = scsi_4btoul(cdb->length); 7301 7302 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7303 7304 ctsio->kern_sg_entries = 0; 7305 7306 if (total_len < alloc_len) { 7307 ctsio->residual = alloc_len - total_len; 7308 ctsio->kern_data_len = total_len; 7309 ctsio->kern_total_len = total_len; 7310 } else { 7311 ctsio->residual = 0; 7312 ctsio->kern_data_len = alloc_len; 7313 ctsio->kern_total_len = alloc_len; 7314 } 7315 ctsio->kern_data_resid = 0; 7316 ctsio->kern_rel_offset = 0; 7317 7318 switch (cdb->options & RSO_OPTIONS_MASK) { 7319 case RSO_OPTIONS_ALL: 7320 all = (struct scsi_report_supported_opcodes_all *) 7321 ctsio->kern_data_ptr; 7322 num = 0; 7323 for (i = 0; i < 256; i++) { 7324 entry = &ctl_cmd_table[i]; 7325 if (entry->flags & CTL_CMD_FLAG_SA5) { 7326 for (j = 0; j < 32; j++) { 7327 sentry = &((const struct ctl_cmd_entry *) 7328 entry->execute)[j]; 7329 if (!ctl_cmd_applicable( 7330 lun->be_lun->lun_type, sentry)) 7331 continue; 7332 descr = &all->descr[num++]; 7333 descr->opcode = i; 7334 scsi_ulto2b(j, descr->service_action); 7335 descr->flags = RSO_SERVACTV; 7336 scsi_ulto2b(sentry->length, 7337 descr->cdb_length); 7338 } 7339 } else { 7340 if (!ctl_cmd_applicable(lun->be_lun->lun_type, 7341 entry)) 7342 continue; 7343 descr = &all->descr[num++]; 7344 descr->opcode = i; 7345 scsi_ulto2b(0, descr->service_action); 7346 descr->flags = 0; 7347 scsi_ulto2b(entry->length, descr->cdb_length); 7348 } 7349 } 7350 scsi_ulto4b( 7351 num * sizeof(struct scsi_report_supported_opcodes_descr), 7352 all->length); 7353 break; 7354 case RSO_OPTIONS_OC: 7355 one = (struct scsi_report_supported_opcodes_one *) 7356 ctsio->kern_data_ptr; 7357 entry = &ctl_cmd_table[opcode]; 7358 goto fill_one; 7359 case RSO_OPTIONS_OC_SA: 7360 one = (struct scsi_report_supported_opcodes_one *) 7361 ctsio->kern_data_ptr; 7362 entry = &ctl_cmd_table[opcode]; 7363 entry = &((const struct ctl_cmd_entry *) 7364 entry->execute)[service_action]; 7365fill_one: 7366 if (ctl_cmd_applicable(lun->be_lun->lun_type, entry)) { 7367 one->support = 3; 7368 scsi_ulto2b(entry->length, one->cdb_length); 7369 one->cdb_usage[0] = opcode; 7370 memcpy(&one->cdb_usage[1], entry->usage, 7371 entry->length - 1); 7372 } else 7373 one->support = 1; 7374 break; 7375 } 7376 7377 ctl_set_success(ctsio); 7378 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7379 ctsio->be_move_done = ctl_config_move_done; 7380 ctl_datamove((union ctl_io *)ctsio); 7381 return(retval); 7382} 7383 7384int 7385ctl_report_supported_tmf(struct ctl_scsiio *ctsio) 7386{ 7387 struct scsi_report_supported_tmf *cdb; 7388 struct scsi_report_supported_tmf_data *data; 7389 int retval; 7390 int alloc_len, total_len; 7391 7392 CTL_DEBUG_PRINT(("ctl_report_supported_tmf\n")); 7393 7394 cdb = (struct scsi_report_supported_tmf *)ctsio->cdb; 7395 7396 retval = CTL_RETVAL_COMPLETE; 7397 7398 total_len = sizeof(struct scsi_report_supported_tmf_data); 7399 alloc_len = scsi_4btoul(cdb->length); 7400 7401 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7402 7403 ctsio->kern_sg_entries = 0; 7404 7405 if (total_len < alloc_len) { 7406 ctsio->residual = alloc_len - total_len; 7407 ctsio->kern_data_len = total_len; 7408 ctsio->kern_total_len = total_len; 7409 } else { 7410 ctsio->residual = 0; 7411 ctsio->kern_data_len = alloc_len; 7412 ctsio->kern_total_len = alloc_len; 7413 } 7414 ctsio->kern_data_resid = 0; 7415 ctsio->kern_rel_offset = 0; 7416 7417 data = (struct scsi_report_supported_tmf_data *)ctsio->kern_data_ptr; 7418 data->byte1 |= RST_ATS | RST_ATSS | RST_CTSS | RST_LURS | RST_QTS | 7419 RST_TRS; 7420 data->byte2 |= RST_QAES | RST_QTSS | RST_ITNRS; 7421 7422 ctl_set_success(ctsio); 7423 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7424 ctsio->be_move_done = ctl_config_move_done; 7425 ctl_datamove((union ctl_io *)ctsio); 7426 return (retval); 7427} 7428 7429int 7430ctl_report_timestamp(struct ctl_scsiio *ctsio) 7431{ 7432 struct scsi_report_timestamp *cdb; 7433 struct scsi_report_timestamp_data *data; 7434 struct timeval tv; 7435 int64_t timestamp; 7436 int retval; 7437 int alloc_len, total_len; 7438 7439 CTL_DEBUG_PRINT(("ctl_report_timestamp\n")); 7440 7441 cdb = (struct scsi_report_timestamp *)ctsio->cdb; 7442 7443 retval = CTL_RETVAL_COMPLETE; 7444 7445 total_len = sizeof(struct scsi_report_timestamp_data); 7446 alloc_len = scsi_4btoul(cdb->length); 7447 7448 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7449 7450 ctsio->kern_sg_entries = 0; 7451 7452 if (total_len < alloc_len) { 7453 ctsio->residual = alloc_len - total_len; 7454 ctsio->kern_data_len = total_len; 7455 ctsio->kern_total_len = total_len; 7456 } else { 7457 ctsio->residual = 0; 7458 ctsio->kern_data_len = alloc_len; 7459 ctsio->kern_total_len = alloc_len; 7460 } 7461 ctsio->kern_data_resid = 0; 7462 ctsio->kern_rel_offset = 0; 7463 7464 data = (struct scsi_report_timestamp_data *)ctsio->kern_data_ptr; 7465 scsi_ulto2b(sizeof(*data) - 2, data->length); 7466 data->origin = RTS_ORIG_OUTSIDE; 7467 getmicrotime(&tv); 7468 timestamp = (int64_t)tv.tv_sec * 1000 + tv.tv_usec / 1000; 7469 scsi_ulto4b(timestamp >> 16, data->timestamp); 7470 scsi_ulto2b(timestamp & 0xffff, &data->timestamp[4]); 7471 7472 ctl_set_success(ctsio); 7473 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7474 ctsio->be_move_done = ctl_config_move_done; 7475 ctl_datamove((union ctl_io *)ctsio); 7476 return (retval); 7477} 7478 7479int 7480ctl_persistent_reserve_in(struct ctl_scsiio *ctsio) 7481{ 7482 struct scsi_per_res_in *cdb; 7483 int alloc_len, total_len = 0; 7484 /* struct scsi_per_res_in_rsrv in_data; */ 7485 struct ctl_lun *lun; 7486 struct ctl_softc *softc; 7487 uint64_t key; 7488 7489 CTL_DEBUG_PRINT(("ctl_persistent_reserve_in\n")); 7490 7491 cdb = (struct scsi_per_res_in *)ctsio->cdb; 7492 7493 alloc_len = scsi_2btoul(cdb->length); 7494 7495 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7496 softc = lun->ctl_softc; 7497 7498retry: 7499 mtx_lock(&lun->lun_lock); 7500 switch (cdb->action) { 7501 case SPRI_RK: /* read keys */ 7502 total_len = sizeof(struct scsi_per_res_in_keys) + 7503 lun->pr_key_count * 7504 sizeof(struct scsi_per_res_key); 7505 break; 7506 case SPRI_RR: /* read reservation */ 7507 if (lun->flags & CTL_LUN_PR_RESERVED) 7508 total_len = sizeof(struct scsi_per_res_in_rsrv); 7509 else 7510 total_len = sizeof(struct scsi_per_res_in_header); 7511 break; 7512 case SPRI_RC: /* report capabilities */ 7513 total_len = sizeof(struct scsi_per_res_cap); 7514 break; 7515 case SPRI_RS: /* read full status */ 7516 total_len = sizeof(struct scsi_per_res_in_header) + 7517 (sizeof(struct scsi_per_res_in_full_desc) + 256) * 7518 lun->pr_key_count; 7519 break; 7520 default: 7521 panic("%s: Invalid PR type %#x", __func__, cdb->action); 7522 } 7523 mtx_unlock(&lun->lun_lock); 7524 7525 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7526 7527 if (total_len < alloc_len) { 7528 ctsio->residual = alloc_len - total_len; 7529 ctsio->kern_data_len = total_len; 7530 ctsio->kern_total_len = total_len; 7531 } else { 7532 ctsio->residual = 0; 7533 ctsio->kern_data_len = alloc_len; 7534 ctsio->kern_total_len = alloc_len; 7535 } 7536 7537 ctsio->kern_data_resid = 0; 7538 ctsio->kern_rel_offset = 0; 7539 ctsio->kern_sg_entries = 0; 7540 7541 mtx_lock(&lun->lun_lock); 7542 switch (cdb->action) { 7543 case SPRI_RK: { // read keys 7544 struct scsi_per_res_in_keys *res_keys; 7545 int i, key_count; 7546 7547 res_keys = (struct scsi_per_res_in_keys*)ctsio->kern_data_ptr; 7548 7549 /* 7550 * We had to drop the lock to allocate our buffer, which 7551 * leaves time for someone to come in with another 7552 * persistent reservation. (That is unlikely, though, 7553 * since this should be the only persistent reservation 7554 * command active right now.) 7555 */ 7556 if (total_len != (sizeof(struct scsi_per_res_in_keys) + 7557 (lun->pr_key_count * 7558 sizeof(struct scsi_per_res_key)))){ 7559 mtx_unlock(&lun->lun_lock); 7560 free(ctsio->kern_data_ptr, M_CTL); 7561 printf("%s: reservation length changed, retrying\n", 7562 __func__); 7563 goto retry; 7564 } 7565 7566 scsi_ulto4b(lun->pr_generation, res_keys->header.generation); 7567 7568 scsi_ulto4b(sizeof(struct scsi_per_res_key) * 7569 lun->pr_key_count, res_keys->header.length); 7570 7571 for (i = 0, key_count = 0; i < CTL_MAX_INITIATORS; i++) { 7572 if ((key = ctl_get_prkey(lun, i)) == 0) 7573 continue; 7574 7575 /* 7576 * We used lun->pr_key_count to calculate the 7577 * size to allocate. If it turns out the number of 7578 * initiators with the registered flag set is 7579 * larger than that (i.e. they haven't been kept in 7580 * sync), we've got a problem. 7581 */ 7582 if (key_count >= lun->pr_key_count) { 7583 key_count++; 7584 continue; 7585 } 7586 scsi_u64to8b(key, res_keys->keys[key_count].key); 7587 key_count++; 7588 } 7589 break; 7590 } 7591 case SPRI_RR: { // read reservation 7592 struct scsi_per_res_in_rsrv *res; 7593 int tmp_len, header_only; 7594 7595 res = (struct scsi_per_res_in_rsrv *)ctsio->kern_data_ptr; 7596 7597 scsi_ulto4b(lun->pr_generation, res->header.generation); 7598 7599 if (lun->flags & CTL_LUN_PR_RESERVED) 7600 { 7601 tmp_len = sizeof(struct scsi_per_res_in_rsrv); 7602 scsi_ulto4b(sizeof(struct scsi_per_res_in_rsrv_data), 7603 res->header.length); 7604 header_only = 0; 7605 } else { 7606 tmp_len = sizeof(struct scsi_per_res_in_header); 7607 scsi_ulto4b(0, res->header.length); 7608 header_only = 1; 7609 } 7610 7611 /* 7612 * We had to drop the lock to allocate our buffer, which 7613 * leaves time for someone to come in with another 7614 * persistent reservation. (That is unlikely, though, 7615 * since this should be the only persistent reservation 7616 * command active right now.) 7617 */ 7618 if (tmp_len != total_len) { 7619 mtx_unlock(&lun->lun_lock); 7620 free(ctsio->kern_data_ptr, M_CTL); 7621 printf("%s: reservation status changed, retrying\n", 7622 __func__); 7623 goto retry; 7624 } 7625 7626 /* 7627 * No reservation held, so we're done. 7628 */ 7629 if (header_only != 0) 7630 break; 7631 7632 /* 7633 * If the registration is an All Registrants type, the key 7634 * is 0, since it doesn't really matter. 7635 */ 7636 if (lun->pr_res_idx != CTL_PR_ALL_REGISTRANTS) { 7637 scsi_u64to8b(ctl_get_prkey(lun, lun->pr_res_idx), 7638 res->data.reservation); 7639 } 7640 res->data.scopetype = lun->pr_res_type; 7641 break; 7642 } 7643 case SPRI_RC: //report capabilities 7644 { 7645 struct scsi_per_res_cap *res_cap; 7646 uint16_t type_mask; 7647 7648 res_cap = (struct scsi_per_res_cap *)ctsio->kern_data_ptr; 7649 scsi_ulto2b(sizeof(*res_cap), res_cap->length); 7650 res_cap->flags1 = SPRI_CRH; 7651 res_cap->flags2 = SPRI_TMV | SPRI_ALLOW_5; 7652 type_mask = SPRI_TM_WR_EX_AR | 7653 SPRI_TM_EX_AC_RO | 7654 SPRI_TM_WR_EX_RO | 7655 SPRI_TM_EX_AC | 7656 SPRI_TM_WR_EX | 7657 SPRI_TM_EX_AC_AR; 7658 scsi_ulto2b(type_mask, res_cap->type_mask); 7659 break; 7660 } 7661 case SPRI_RS: { // read full status 7662 struct scsi_per_res_in_full *res_status; 7663 struct scsi_per_res_in_full_desc *res_desc; 7664 struct ctl_port *port; 7665 int i, len; 7666 7667 res_status = (struct scsi_per_res_in_full*)ctsio->kern_data_ptr; 7668 7669 /* 7670 * We had to drop the lock to allocate our buffer, which 7671 * leaves time for someone to come in with another 7672 * persistent reservation. (That is unlikely, though, 7673 * since this should be the only persistent reservation 7674 * command active right now.) 7675 */ 7676 if (total_len < (sizeof(struct scsi_per_res_in_header) + 7677 (sizeof(struct scsi_per_res_in_full_desc) + 256) * 7678 lun->pr_key_count)){ 7679 mtx_unlock(&lun->lun_lock); 7680 free(ctsio->kern_data_ptr, M_CTL); 7681 printf("%s: reservation length changed, retrying\n", 7682 __func__); 7683 goto retry; 7684 } 7685 7686 scsi_ulto4b(lun->pr_generation, res_status->header.generation); 7687 7688 res_desc = &res_status->desc[0]; 7689 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 7690 if ((key = ctl_get_prkey(lun, i)) == 0) 7691 continue; 7692 7693 scsi_u64to8b(key, res_desc->res_key.key); 7694 if ((lun->flags & CTL_LUN_PR_RESERVED) && 7695 (lun->pr_res_idx == i || 7696 lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS)) { 7697 res_desc->flags = SPRI_FULL_R_HOLDER; 7698 res_desc->scopetype = lun->pr_res_type; 7699 } 7700 scsi_ulto2b(i / CTL_MAX_INIT_PER_PORT, 7701 res_desc->rel_trgt_port_id); 7702 len = 0; 7703 port = softc->ctl_ports[i / CTL_MAX_INIT_PER_PORT]; 7704 if (port != NULL) 7705 len = ctl_create_iid(port, 7706 i % CTL_MAX_INIT_PER_PORT, 7707 res_desc->transport_id); 7708 scsi_ulto4b(len, res_desc->additional_length); 7709 res_desc = (struct scsi_per_res_in_full_desc *) 7710 &res_desc->transport_id[len]; 7711 } 7712 scsi_ulto4b((uint8_t *)res_desc - (uint8_t *)&res_status->desc[0], 7713 res_status->header.length); 7714 break; 7715 } 7716 default: 7717 panic("%s: Invalid PR type %#x", __func__, cdb->action); 7718 } 7719 mtx_unlock(&lun->lun_lock); 7720 7721 ctl_set_success(ctsio); 7722 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7723 ctsio->be_move_done = ctl_config_move_done; 7724 ctl_datamove((union ctl_io *)ctsio); 7725 return (CTL_RETVAL_COMPLETE); 7726} 7727 7728/* 7729 * Returns 0 if ctl_persistent_reserve_out() should continue, non-zero if 7730 * it should return. 7731 */ 7732static int 7733ctl_pro_preempt(struct ctl_softc *softc, struct ctl_lun *lun, uint64_t res_key, 7734 uint64_t sa_res_key, uint8_t type, uint32_t residx, 7735 struct ctl_scsiio *ctsio, struct scsi_per_res_out *cdb, 7736 struct scsi_per_res_out_parms* param) 7737{ 7738 union ctl_ha_msg persis_io; 7739 int i; 7740 7741 mtx_lock(&lun->lun_lock); 7742 if (sa_res_key == 0) { 7743 if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS) { 7744 /* validate scope and type */ 7745 if ((cdb->scope_type & SPR_SCOPE_MASK) != 7746 SPR_LU_SCOPE) { 7747 mtx_unlock(&lun->lun_lock); 7748 ctl_set_invalid_field(/*ctsio*/ ctsio, 7749 /*sks_valid*/ 1, 7750 /*command*/ 1, 7751 /*field*/ 2, 7752 /*bit_valid*/ 1, 7753 /*bit*/ 4); 7754 ctl_done((union ctl_io *)ctsio); 7755 return (1); 7756 } 7757 7758 if (type>8 || type==2 || type==4 || type==0) { 7759 mtx_unlock(&lun->lun_lock); 7760 ctl_set_invalid_field(/*ctsio*/ ctsio, 7761 /*sks_valid*/ 1, 7762 /*command*/ 1, 7763 /*field*/ 2, 7764 /*bit_valid*/ 1, 7765 /*bit*/ 0); 7766 ctl_done((union ctl_io *)ctsio); 7767 return (1); 7768 } 7769 7770 /* 7771 * Unregister everybody else and build UA for 7772 * them 7773 */ 7774 for(i = 0; i < CTL_MAX_INITIATORS; i++) { 7775 if (i == residx || ctl_get_prkey(lun, i) == 0) 7776 continue; 7777 7778 ctl_clr_prkey(lun, i); 7779 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 7780 } 7781 lun->pr_key_count = 1; 7782 lun->pr_res_type = type; 7783 if (lun->pr_res_type != SPR_TYPE_WR_EX_AR && 7784 lun->pr_res_type != SPR_TYPE_EX_AC_AR) 7785 lun->pr_res_idx = residx; 7786 lun->pr_generation++; 7787 mtx_unlock(&lun->lun_lock); 7788 7789 /* send msg to other side */ 7790 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 7791 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 7792 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 7793 persis_io.pr.pr_info.residx = lun->pr_res_idx; 7794 persis_io.pr.pr_info.res_type = type; 7795 memcpy(persis_io.pr.pr_info.sa_res_key, 7796 param->serv_act_res_key, 7797 sizeof(param->serv_act_res_key)); 7798 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 7799 sizeof(persis_io.pr), M_WAITOK); 7800 } else { 7801 /* not all registrants */ 7802 mtx_unlock(&lun->lun_lock); 7803 free(ctsio->kern_data_ptr, M_CTL); 7804 ctl_set_invalid_field(ctsio, 7805 /*sks_valid*/ 1, 7806 /*command*/ 0, 7807 /*field*/ 8, 7808 /*bit_valid*/ 0, 7809 /*bit*/ 0); 7810 ctl_done((union ctl_io *)ctsio); 7811 return (1); 7812 } 7813 } else if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS 7814 || !(lun->flags & CTL_LUN_PR_RESERVED)) { 7815 int found = 0; 7816 7817 if (res_key == sa_res_key) { 7818 /* special case */ 7819 /* 7820 * The spec implies this is not good but doesn't 7821 * say what to do. There are two choices either 7822 * generate a res conflict or check condition 7823 * with illegal field in parameter data. Since 7824 * that is what is done when the sa_res_key is 7825 * zero I'll take that approach since this has 7826 * to do with the sa_res_key. 7827 */ 7828 mtx_unlock(&lun->lun_lock); 7829 free(ctsio->kern_data_ptr, M_CTL); 7830 ctl_set_invalid_field(ctsio, 7831 /*sks_valid*/ 1, 7832 /*command*/ 0, 7833 /*field*/ 8, 7834 /*bit_valid*/ 0, 7835 /*bit*/ 0); 7836 ctl_done((union ctl_io *)ctsio); 7837 return (1); 7838 } 7839 7840 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 7841 if (ctl_get_prkey(lun, i) != sa_res_key) 7842 continue; 7843 7844 found = 1; 7845 ctl_clr_prkey(lun, i); 7846 lun->pr_key_count--; 7847 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 7848 } 7849 if (!found) { 7850 mtx_unlock(&lun->lun_lock); 7851 free(ctsio->kern_data_ptr, M_CTL); 7852 ctl_set_reservation_conflict(ctsio); 7853 ctl_done((union ctl_io *)ctsio); 7854 return (CTL_RETVAL_COMPLETE); 7855 } 7856 lun->pr_generation++; 7857 mtx_unlock(&lun->lun_lock); 7858 7859 /* send msg to other side */ 7860 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 7861 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 7862 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 7863 persis_io.pr.pr_info.residx = lun->pr_res_idx; 7864 persis_io.pr.pr_info.res_type = type; 7865 memcpy(persis_io.pr.pr_info.sa_res_key, 7866 param->serv_act_res_key, 7867 sizeof(param->serv_act_res_key)); 7868 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 7869 sizeof(persis_io.pr), M_WAITOK); 7870 } else { 7871 /* Reserved but not all registrants */ 7872 /* sa_res_key is res holder */ 7873 if (sa_res_key == ctl_get_prkey(lun, lun->pr_res_idx)) { 7874 /* validate scope and type */ 7875 if ((cdb->scope_type & SPR_SCOPE_MASK) != 7876 SPR_LU_SCOPE) { 7877 mtx_unlock(&lun->lun_lock); 7878 ctl_set_invalid_field(/*ctsio*/ ctsio, 7879 /*sks_valid*/ 1, 7880 /*command*/ 1, 7881 /*field*/ 2, 7882 /*bit_valid*/ 1, 7883 /*bit*/ 4); 7884 ctl_done((union ctl_io *)ctsio); 7885 return (1); 7886 } 7887 7888 if (type>8 || type==2 || type==4 || type==0) { 7889 mtx_unlock(&lun->lun_lock); 7890 ctl_set_invalid_field(/*ctsio*/ ctsio, 7891 /*sks_valid*/ 1, 7892 /*command*/ 1, 7893 /*field*/ 2, 7894 /*bit_valid*/ 1, 7895 /*bit*/ 0); 7896 ctl_done((union ctl_io *)ctsio); 7897 return (1); 7898 } 7899 7900 /* 7901 * Do the following: 7902 * if sa_res_key != res_key remove all 7903 * registrants w/sa_res_key and generate UA 7904 * for these registrants(Registrations 7905 * Preempted) if it wasn't an exclusive 7906 * reservation generate UA(Reservations 7907 * Preempted) for all other registered nexuses 7908 * if the type has changed. Establish the new 7909 * reservation and holder. If res_key and 7910 * sa_res_key are the same do the above 7911 * except don't unregister the res holder. 7912 */ 7913 7914 for(i = 0; i < CTL_MAX_INITIATORS; i++) { 7915 if (i == residx || ctl_get_prkey(lun, i) == 0) 7916 continue; 7917 7918 if (sa_res_key == ctl_get_prkey(lun, i)) { 7919 ctl_clr_prkey(lun, i); 7920 lun->pr_key_count--; 7921 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 7922 } else if (type != lun->pr_res_type && 7923 (lun->pr_res_type == SPR_TYPE_WR_EX_RO || 7924 lun->pr_res_type == SPR_TYPE_EX_AC_RO)) { 7925 ctl_est_ua(lun, i, CTL_UA_RES_RELEASE); 7926 } 7927 } 7928 lun->pr_res_type = type; 7929 if (lun->pr_res_type != SPR_TYPE_WR_EX_AR && 7930 lun->pr_res_type != SPR_TYPE_EX_AC_AR) 7931 lun->pr_res_idx = residx; 7932 else 7933 lun->pr_res_idx = CTL_PR_ALL_REGISTRANTS; 7934 lun->pr_generation++; 7935 mtx_unlock(&lun->lun_lock); 7936 7937 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 7938 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 7939 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 7940 persis_io.pr.pr_info.residx = lun->pr_res_idx; 7941 persis_io.pr.pr_info.res_type = type; 7942 memcpy(persis_io.pr.pr_info.sa_res_key, 7943 param->serv_act_res_key, 7944 sizeof(param->serv_act_res_key)); 7945 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 7946 sizeof(persis_io.pr), M_WAITOK); 7947 } else { 7948 /* 7949 * sa_res_key is not the res holder just 7950 * remove registrants 7951 */ 7952 int found=0; 7953 7954 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 7955 if (sa_res_key != ctl_get_prkey(lun, i)) 7956 continue; 7957 7958 found = 1; 7959 ctl_clr_prkey(lun, i); 7960 lun->pr_key_count--; 7961 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 7962 } 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 (1); 7970 } 7971 lun->pr_generation++; 7972 mtx_unlock(&lun->lun_lock); 7973 7974 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 7975 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 7976 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 7977 persis_io.pr.pr_info.residx = lun->pr_res_idx; 7978 persis_io.pr.pr_info.res_type = type; 7979 memcpy(persis_io.pr.pr_info.sa_res_key, 7980 param->serv_act_res_key, 7981 sizeof(param->serv_act_res_key)); 7982 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 7983 sizeof(persis_io.pr), M_WAITOK); 7984 } 7985 } 7986 return (0); 7987} 7988 7989static void 7990ctl_pro_preempt_other(struct ctl_lun *lun, union ctl_ha_msg *msg) 7991{ 7992 uint64_t sa_res_key; 7993 int i; 7994 7995 sa_res_key = scsi_8btou64(msg->pr.pr_info.sa_res_key); 7996 7997 if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS 7998 || lun->pr_res_idx == CTL_PR_NO_RESERVATION 7999 || sa_res_key != ctl_get_prkey(lun, lun->pr_res_idx)) { 8000 if (sa_res_key == 0) { 8001 /* 8002 * Unregister everybody else and build UA for 8003 * them 8004 */ 8005 for(i = 0; i < CTL_MAX_INITIATORS; i++) { 8006 if (i == msg->pr.pr_info.residx || 8007 ctl_get_prkey(lun, i) == 0) 8008 continue; 8009 8010 ctl_clr_prkey(lun, i); 8011 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 8012 } 8013 8014 lun->pr_key_count = 1; 8015 lun->pr_res_type = msg->pr.pr_info.res_type; 8016 if (lun->pr_res_type != SPR_TYPE_WR_EX_AR && 8017 lun->pr_res_type != SPR_TYPE_EX_AC_AR) 8018 lun->pr_res_idx = msg->pr.pr_info.residx; 8019 } else { 8020 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 8021 if (sa_res_key == ctl_get_prkey(lun, i)) 8022 continue; 8023 8024 ctl_clr_prkey(lun, i); 8025 lun->pr_key_count--; 8026 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 8027 } 8028 } 8029 } else { 8030 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 8031 if (i == msg->pr.pr_info.residx || 8032 ctl_get_prkey(lun, i) == 0) 8033 continue; 8034 8035 if (sa_res_key == ctl_get_prkey(lun, i)) { 8036 ctl_clr_prkey(lun, i); 8037 lun->pr_key_count--; 8038 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 8039 } else if (msg->pr.pr_info.res_type != lun->pr_res_type 8040 && (lun->pr_res_type == SPR_TYPE_WR_EX_RO || 8041 lun->pr_res_type == SPR_TYPE_EX_AC_RO)) { 8042 ctl_est_ua(lun, i, CTL_UA_RES_RELEASE); 8043 } 8044 } 8045 lun->pr_res_type = msg->pr.pr_info.res_type; 8046 if (lun->pr_res_type != SPR_TYPE_WR_EX_AR && 8047 lun->pr_res_type != SPR_TYPE_EX_AC_AR) 8048 lun->pr_res_idx = msg->pr.pr_info.residx; 8049 else 8050 lun->pr_res_idx = CTL_PR_ALL_REGISTRANTS; 8051 } 8052 lun->pr_generation++; 8053 8054} 8055 8056 8057int 8058ctl_persistent_reserve_out(struct ctl_scsiio *ctsio) 8059{ 8060 int retval; 8061 u_int32_t param_len; 8062 struct scsi_per_res_out *cdb; 8063 struct ctl_lun *lun; 8064 struct scsi_per_res_out_parms* param; 8065 struct ctl_softc *softc; 8066 uint32_t residx; 8067 uint64_t res_key, sa_res_key, key; 8068 uint8_t type; 8069 union ctl_ha_msg persis_io; 8070 int i; 8071 8072 CTL_DEBUG_PRINT(("ctl_persistent_reserve_out\n")); 8073 8074 retval = CTL_RETVAL_COMPLETE; 8075 8076 cdb = (struct scsi_per_res_out *)ctsio->cdb; 8077 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 8078 softc = lun->ctl_softc; 8079 8080 /* 8081 * We only support whole-LUN scope. The scope & type are ignored for 8082 * register, register and ignore existing key and clear. 8083 * We sometimes ignore scope and type on preempts too!! 8084 * Verify reservation type here as well. 8085 */ 8086 type = cdb->scope_type & SPR_TYPE_MASK; 8087 if ((cdb->action == SPRO_RESERVE) 8088 || (cdb->action == SPRO_RELEASE)) { 8089 if ((cdb->scope_type & SPR_SCOPE_MASK) != SPR_LU_SCOPE) { 8090 ctl_set_invalid_field(/*ctsio*/ ctsio, 8091 /*sks_valid*/ 1, 8092 /*command*/ 1, 8093 /*field*/ 2, 8094 /*bit_valid*/ 1, 8095 /*bit*/ 4); 8096 ctl_done((union ctl_io *)ctsio); 8097 return (CTL_RETVAL_COMPLETE); 8098 } 8099 8100 if (type>8 || type==2 || type==4 || type==0) { 8101 ctl_set_invalid_field(/*ctsio*/ ctsio, 8102 /*sks_valid*/ 1, 8103 /*command*/ 1, 8104 /*field*/ 2, 8105 /*bit_valid*/ 1, 8106 /*bit*/ 0); 8107 ctl_done((union ctl_io *)ctsio); 8108 return (CTL_RETVAL_COMPLETE); 8109 } 8110 } 8111 8112 param_len = scsi_4btoul(cdb->length); 8113 8114 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 8115 ctsio->kern_data_ptr = malloc(param_len, M_CTL, M_WAITOK); 8116 ctsio->kern_data_len = param_len; 8117 ctsio->kern_total_len = param_len; 8118 ctsio->kern_data_resid = 0; 8119 ctsio->kern_rel_offset = 0; 8120 ctsio->kern_sg_entries = 0; 8121 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 8122 ctsio->be_move_done = ctl_config_move_done; 8123 ctl_datamove((union ctl_io *)ctsio); 8124 8125 return (CTL_RETVAL_COMPLETE); 8126 } 8127 8128 param = (struct scsi_per_res_out_parms *)ctsio->kern_data_ptr; 8129 8130 residx = ctl_get_initindex(&ctsio->io_hdr.nexus); 8131 res_key = scsi_8btou64(param->res_key.key); 8132 sa_res_key = scsi_8btou64(param->serv_act_res_key); 8133 8134 /* 8135 * Validate the reservation key here except for SPRO_REG_IGNO 8136 * This must be done for all other service actions 8137 */ 8138 if ((cdb->action & SPRO_ACTION_MASK) != SPRO_REG_IGNO) { 8139 mtx_lock(&lun->lun_lock); 8140 if ((key = ctl_get_prkey(lun, residx)) != 0) { 8141 if (res_key != key) { 8142 /* 8143 * The current key passed in doesn't match 8144 * the one the initiator previously 8145 * registered. 8146 */ 8147 mtx_unlock(&lun->lun_lock); 8148 free(ctsio->kern_data_ptr, M_CTL); 8149 ctl_set_reservation_conflict(ctsio); 8150 ctl_done((union ctl_io *)ctsio); 8151 return (CTL_RETVAL_COMPLETE); 8152 } 8153 } else if ((cdb->action & SPRO_ACTION_MASK) != SPRO_REGISTER) { 8154 /* 8155 * We are not registered 8156 */ 8157 mtx_unlock(&lun->lun_lock); 8158 free(ctsio->kern_data_ptr, M_CTL); 8159 ctl_set_reservation_conflict(ctsio); 8160 ctl_done((union ctl_io *)ctsio); 8161 return (CTL_RETVAL_COMPLETE); 8162 } else if (res_key != 0) { 8163 /* 8164 * We are not registered and trying to register but 8165 * the register key isn't zero. 8166 */ 8167 mtx_unlock(&lun->lun_lock); 8168 free(ctsio->kern_data_ptr, M_CTL); 8169 ctl_set_reservation_conflict(ctsio); 8170 ctl_done((union ctl_io *)ctsio); 8171 return (CTL_RETVAL_COMPLETE); 8172 } 8173 mtx_unlock(&lun->lun_lock); 8174 } 8175 8176 switch (cdb->action & SPRO_ACTION_MASK) { 8177 case SPRO_REGISTER: 8178 case SPRO_REG_IGNO: { 8179 8180#if 0 8181 printf("Registration received\n"); 8182#endif 8183 8184 /* 8185 * We don't support any of these options, as we report in 8186 * the read capabilities request (see 8187 * ctl_persistent_reserve_in(), above). 8188 */ 8189 if ((param->flags & SPR_SPEC_I_PT) 8190 || (param->flags & SPR_ALL_TG_PT) 8191 || (param->flags & SPR_APTPL)) { 8192 int bit_ptr; 8193 8194 if (param->flags & SPR_APTPL) 8195 bit_ptr = 0; 8196 else if (param->flags & SPR_ALL_TG_PT) 8197 bit_ptr = 2; 8198 else /* SPR_SPEC_I_PT */ 8199 bit_ptr = 3; 8200 8201 free(ctsio->kern_data_ptr, M_CTL); 8202 ctl_set_invalid_field(ctsio, 8203 /*sks_valid*/ 1, 8204 /*command*/ 0, 8205 /*field*/ 20, 8206 /*bit_valid*/ 1, 8207 /*bit*/ bit_ptr); 8208 ctl_done((union ctl_io *)ctsio); 8209 return (CTL_RETVAL_COMPLETE); 8210 } 8211 8212 mtx_lock(&lun->lun_lock); 8213 8214 /* 8215 * The initiator wants to clear the 8216 * key/unregister. 8217 */ 8218 if (sa_res_key == 0) { 8219 if ((res_key == 0 8220 && (cdb->action & SPRO_ACTION_MASK) == SPRO_REGISTER) 8221 || ((cdb->action & SPRO_ACTION_MASK) == SPRO_REG_IGNO 8222 && ctl_get_prkey(lun, residx) == 0)) { 8223 mtx_unlock(&lun->lun_lock); 8224 goto done; 8225 } 8226 8227 ctl_clr_prkey(lun, residx); 8228 lun->pr_key_count--; 8229 8230 if (residx == lun->pr_res_idx) { 8231 lun->flags &= ~CTL_LUN_PR_RESERVED; 8232 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8233 8234 if ((lun->pr_res_type == SPR_TYPE_WR_EX_RO || 8235 lun->pr_res_type == SPR_TYPE_EX_AC_RO) && 8236 lun->pr_key_count) { 8237 /* 8238 * If the reservation is a registrants 8239 * only type we need to generate a UA 8240 * for other registered inits. The 8241 * sense code should be RESERVATIONS 8242 * RELEASED 8243 */ 8244 8245 for (i = softc->init_min; i < softc->init_max; i++){ 8246 if (ctl_get_prkey(lun, i) == 0) 8247 continue; 8248 ctl_est_ua(lun, i, 8249 CTL_UA_RES_RELEASE); 8250 } 8251 } 8252 lun->pr_res_type = 0; 8253 } else if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS) { 8254 if (lun->pr_key_count==0) { 8255 lun->flags &= ~CTL_LUN_PR_RESERVED; 8256 lun->pr_res_type = 0; 8257 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8258 } 8259 } 8260 lun->pr_generation++; 8261 mtx_unlock(&lun->lun_lock); 8262 8263 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8264 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8265 persis_io.pr.pr_info.action = CTL_PR_UNREG_KEY; 8266 persis_io.pr.pr_info.residx = residx; 8267 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8268 sizeof(persis_io.pr), M_WAITOK); 8269 } else /* sa_res_key != 0 */ { 8270 8271 /* 8272 * If we aren't registered currently then increment 8273 * the key count and set the registered flag. 8274 */ 8275 ctl_alloc_prkey(lun, residx); 8276 if (ctl_get_prkey(lun, residx) == 0) 8277 lun->pr_key_count++; 8278 ctl_set_prkey(lun, residx, sa_res_key); 8279 lun->pr_generation++; 8280 mtx_unlock(&lun->lun_lock); 8281 8282 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8283 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8284 persis_io.pr.pr_info.action = CTL_PR_REG_KEY; 8285 persis_io.pr.pr_info.residx = residx; 8286 memcpy(persis_io.pr.pr_info.sa_res_key, 8287 param->serv_act_res_key, 8288 sizeof(param->serv_act_res_key)); 8289 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8290 sizeof(persis_io.pr), M_WAITOK); 8291 } 8292 8293 break; 8294 } 8295 case SPRO_RESERVE: 8296#if 0 8297 printf("Reserve executed type %d\n", type); 8298#endif 8299 mtx_lock(&lun->lun_lock); 8300 if (lun->flags & CTL_LUN_PR_RESERVED) { 8301 /* 8302 * if this isn't the reservation holder and it's 8303 * not a "all registrants" type or if the type is 8304 * different then we have a conflict 8305 */ 8306 if ((lun->pr_res_idx != residx 8307 && lun->pr_res_idx != CTL_PR_ALL_REGISTRANTS) 8308 || lun->pr_res_type != type) { 8309 mtx_unlock(&lun->lun_lock); 8310 free(ctsio->kern_data_ptr, M_CTL); 8311 ctl_set_reservation_conflict(ctsio); 8312 ctl_done((union ctl_io *)ctsio); 8313 return (CTL_RETVAL_COMPLETE); 8314 } 8315 mtx_unlock(&lun->lun_lock); 8316 } else /* create a reservation */ { 8317 /* 8318 * If it's not an "all registrants" type record 8319 * reservation holder 8320 */ 8321 if (type != SPR_TYPE_WR_EX_AR 8322 && type != SPR_TYPE_EX_AC_AR) 8323 lun->pr_res_idx = residx; /* Res holder */ 8324 else 8325 lun->pr_res_idx = CTL_PR_ALL_REGISTRANTS; 8326 8327 lun->flags |= CTL_LUN_PR_RESERVED; 8328 lun->pr_res_type = type; 8329 8330 mtx_unlock(&lun->lun_lock); 8331 8332 /* send msg to other side */ 8333 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8334 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8335 persis_io.pr.pr_info.action = CTL_PR_RESERVE; 8336 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8337 persis_io.pr.pr_info.res_type = type; 8338 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8339 sizeof(persis_io.pr), M_WAITOK); 8340 } 8341 break; 8342 8343 case SPRO_RELEASE: 8344 mtx_lock(&lun->lun_lock); 8345 if ((lun->flags & CTL_LUN_PR_RESERVED) == 0) { 8346 /* No reservation exists return good status */ 8347 mtx_unlock(&lun->lun_lock); 8348 goto done; 8349 } 8350 /* 8351 * Is this nexus a reservation holder? 8352 */ 8353 if (lun->pr_res_idx != residx 8354 && lun->pr_res_idx != CTL_PR_ALL_REGISTRANTS) { 8355 /* 8356 * not a res holder return good status but 8357 * do nothing 8358 */ 8359 mtx_unlock(&lun->lun_lock); 8360 goto done; 8361 } 8362 8363 if (lun->pr_res_type != type) { 8364 mtx_unlock(&lun->lun_lock); 8365 free(ctsio->kern_data_ptr, M_CTL); 8366 ctl_set_illegal_pr_release(ctsio); 8367 ctl_done((union ctl_io *)ctsio); 8368 return (CTL_RETVAL_COMPLETE); 8369 } 8370 8371 /* okay to release */ 8372 lun->flags &= ~CTL_LUN_PR_RESERVED; 8373 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8374 lun->pr_res_type = 0; 8375 8376 /* 8377 * if this isn't an exclusive access 8378 * res generate UA for all other 8379 * registrants. 8380 */ 8381 if (type != SPR_TYPE_EX_AC 8382 && type != SPR_TYPE_WR_EX) { 8383 for (i = softc->init_min; i < softc->init_max; i++) { 8384 if (i == residx || ctl_get_prkey(lun, i) == 0) 8385 continue; 8386 ctl_est_ua(lun, i, CTL_UA_RES_RELEASE); 8387 } 8388 } 8389 mtx_unlock(&lun->lun_lock); 8390 8391 /* Send msg to other side */ 8392 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8393 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8394 persis_io.pr.pr_info.action = CTL_PR_RELEASE; 8395 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8396 sizeof(persis_io.pr), M_WAITOK); 8397 break; 8398 8399 case SPRO_CLEAR: 8400 /* send msg to other side */ 8401 8402 mtx_lock(&lun->lun_lock); 8403 lun->flags &= ~CTL_LUN_PR_RESERVED; 8404 lun->pr_res_type = 0; 8405 lun->pr_key_count = 0; 8406 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8407 8408 ctl_clr_prkey(lun, residx); 8409 for (i = 0; i < CTL_MAX_INITIATORS; i++) 8410 if (ctl_get_prkey(lun, i) != 0) { 8411 ctl_clr_prkey(lun, i); 8412 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 8413 } 8414 lun->pr_generation++; 8415 mtx_unlock(&lun->lun_lock); 8416 8417 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8418 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8419 persis_io.pr.pr_info.action = CTL_PR_CLEAR; 8420 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8421 sizeof(persis_io.pr), M_WAITOK); 8422 break; 8423 8424 case SPRO_PREEMPT: 8425 case SPRO_PRE_ABO: { 8426 int nretval; 8427 8428 nretval = ctl_pro_preempt(softc, lun, res_key, sa_res_key, type, 8429 residx, ctsio, cdb, param); 8430 if (nretval != 0) 8431 return (CTL_RETVAL_COMPLETE); 8432 break; 8433 } 8434 default: 8435 panic("%s: Invalid PR type %#x", __func__, cdb->action); 8436 } 8437 8438done: 8439 free(ctsio->kern_data_ptr, M_CTL); 8440 ctl_set_success(ctsio); 8441 ctl_done((union ctl_io *)ctsio); 8442 8443 return (retval); 8444} 8445 8446/* 8447 * This routine is for handling a message from the other SC pertaining to 8448 * persistent reserve out. All the error checking will have been done 8449 * so only perorming the action need be done here to keep the two 8450 * in sync. 8451 */ 8452static void 8453ctl_hndl_per_res_out_on_other_sc(union ctl_ha_msg *msg) 8454{ 8455 struct ctl_softc *softc = control_softc; 8456 struct ctl_lun *lun; 8457 int i; 8458 uint32_t residx, targ_lun; 8459 8460 targ_lun = msg->hdr.nexus.targ_mapped_lun; 8461 mtx_lock(&softc->ctl_lock); 8462 if ((targ_lun >= CTL_MAX_LUNS) || 8463 ((lun = softc->ctl_luns[targ_lun]) == NULL)) { 8464 mtx_unlock(&softc->ctl_lock); 8465 return; 8466 } 8467 mtx_lock(&lun->lun_lock); 8468 mtx_unlock(&softc->ctl_lock); 8469 if (lun->flags & CTL_LUN_DISABLED) { 8470 mtx_unlock(&lun->lun_lock); 8471 return; 8472 } 8473 residx = ctl_get_initindex(&msg->hdr.nexus); 8474 switch(msg->pr.pr_info.action) { 8475 case CTL_PR_REG_KEY: 8476 ctl_alloc_prkey(lun, msg->pr.pr_info.residx); 8477 if (ctl_get_prkey(lun, msg->pr.pr_info.residx) == 0) 8478 lun->pr_key_count++; 8479 ctl_set_prkey(lun, msg->pr.pr_info.residx, 8480 scsi_8btou64(msg->pr.pr_info.sa_res_key)); 8481 lun->pr_generation++; 8482 break; 8483 8484 case CTL_PR_UNREG_KEY: 8485 ctl_clr_prkey(lun, msg->pr.pr_info.residx); 8486 lun->pr_key_count--; 8487 8488 /* XXX Need to see if the reservation has been released */ 8489 /* if so do we need to generate UA? */ 8490 if (msg->pr.pr_info.residx == lun->pr_res_idx) { 8491 lun->flags &= ~CTL_LUN_PR_RESERVED; 8492 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8493 8494 if ((lun->pr_res_type == SPR_TYPE_WR_EX_RO || 8495 lun->pr_res_type == SPR_TYPE_EX_AC_RO) && 8496 lun->pr_key_count) { 8497 /* 8498 * If the reservation is a registrants 8499 * only type we need to generate a UA 8500 * for other registered inits. The 8501 * sense code should be RESERVATIONS 8502 * RELEASED 8503 */ 8504 8505 for (i = softc->init_min; i < softc->init_max; i++) { 8506 if (ctl_get_prkey(lun, i) == 0) 8507 continue; 8508 8509 ctl_est_ua(lun, i, CTL_UA_RES_RELEASE); 8510 } 8511 } 8512 lun->pr_res_type = 0; 8513 } else if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS) { 8514 if (lun->pr_key_count==0) { 8515 lun->flags &= ~CTL_LUN_PR_RESERVED; 8516 lun->pr_res_type = 0; 8517 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8518 } 8519 } 8520 lun->pr_generation++; 8521 break; 8522 8523 case CTL_PR_RESERVE: 8524 lun->flags |= CTL_LUN_PR_RESERVED; 8525 lun->pr_res_type = msg->pr.pr_info.res_type; 8526 lun->pr_res_idx = msg->pr.pr_info.residx; 8527 8528 break; 8529 8530 case CTL_PR_RELEASE: 8531 /* 8532 * if this isn't an exclusive access res generate UA for all 8533 * other registrants. 8534 */ 8535 if (lun->pr_res_type != SPR_TYPE_EX_AC && 8536 lun->pr_res_type != SPR_TYPE_WR_EX) { 8537 for (i = softc->init_min; i < softc->init_max; i++) 8538 if (i == residx || ctl_get_prkey(lun, i) == 0) 8539 continue; 8540 ctl_est_ua(lun, i, CTL_UA_RES_RELEASE); 8541 } 8542 8543 lun->flags &= ~CTL_LUN_PR_RESERVED; 8544 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8545 lun->pr_res_type = 0; 8546 break; 8547 8548 case CTL_PR_PREEMPT: 8549 ctl_pro_preempt_other(lun, msg); 8550 break; 8551 case CTL_PR_CLEAR: 8552 lun->flags &= ~CTL_LUN_PR_RESERVED; 8553 lun->pr_res_type = 0; 8554 lun->pr_key_count = 0; 8555 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8556 8557 for (i=0; i < CTL_MAX_INITIATORS; i++) { 8558 if (ctl_get_prkey(lun, i) == 0) 8559 continue; 8560 ctl_clr_prkey(lun, i); 8561 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 8562 } 8563 lun->pr_generation++; 8564 break; 8565 } 8566 8567 mtx_unlock(&lun->lun_lock); 8568} 8569 8570int 8571ctl_read_write(struct ctl_scsiio *ctsio) 8572{ 8573 struct ctl_lun *lun; 8574 struct ctl_lba_len_flags *lbalen; 8575 uint64_t lba; 8576 uint32_t num_blocks; 8577 int flags, retval; 8578 int isread; 8579 8580 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 8581 8582 CTL_DEBUG_PRINT(("ctl_read_write: command: %#x\n", ctsio->cdb[0])); 8583 8584 flags = 0; 8585 isread = ctsio->cdb[0] == READ_6 || ctsio->cdb[0] == READ_10 8586 || ctsio->cdb[0] == READ_12 || ctsio->cdb[0] == READ_16; 8587 switch (ctsio->cdb[0]) { 8588 case READ_6: 8589 case WRITE_6: { 8590 struct scsi_rw_6 *cdb; 8591 8592 cdb = (struct scsi_rw_6 *)ctsio->cdb; 8593 8594 lba = scsi_3btoul(cdb->addr); 8595 /* only 5 bits are valid in the most significant address byte */ 8596 lba &= 0x1fffff; 8597 num_blocks = cdb->length; 8598 /* 8599 * This is correct according to SBC-2. 8600 */ 8601 if (num_blocks == 0) 8602 num_blocks = 256; 8603 break; 8604 } 8605 case READ_10: 8606 case WRITE_10: { 8607 struct scsi_rw_10 *cdb; 8608 8609 cdb = (struct scsi_rw_10 *)ctsio->cdb; 8610 if (cdb->byte2 & SRW10_FUA) 8611 flags |= CTL_LLF_FUA; 8612 if (cdb->byte2 & SRW10_DPO) 8613 flags |= CTL_LLF_DPO; 8614 lba = scsi_4btoul(cdb->addr); 8615 num_blocks = scsi_2btoul(cdb->length); 8616 break; 8617 } 8618 case WRITE_VERIFY_10: { 8619 struct scsi_write_verify_10 *cdb; 8620 8621 cdb = (struct scsi_write_verify_10 *)ctsio->cdb; 8622 flags |= CTL_LLF_FUA; 8623 if (cdb->byte2 & SWV_DPO) 8624 flags |= CTL_LLF_DPO; 8625 lba = scsi_4btoul(cdb->addr); 8626 num_blocks = scsi_2btoul(cdb->length); 8627 break; 8628 } 8629 case READ_12: 8630 case WRITE_12: { 8631 struct scsi_rw_12 *cdb; 8632 8633 cdb = (struct scsi_rw_12 *)ctsio->cdb; 8634 if (cdb->byte2 & SRW12_FUA) 8635 flags |= CTL_LLF_FUA; 8636 if (cdb->byte2 & SRW12_DPO) 8637 flags |= CTL_LLF_DPO; 8638 lba = scsi_4btoul(cdb->addr); 8639 num_blocks = scsi_4btoul(cdb->length); 8640 break; 8641 } 8642 case WRITE_VERIFY_12: { 8643 struct scsi_write_verify_12 *cdb; 8644 8645 cdb = (struct scsi_write_verify_12 *)ctsio->cdb; 8646 flags |= CTL_LLF_FUA; 8647 if (cdb->byte2 & SWV_DPO) 8648 flags |= CTL_LLF_DPO; 8649 lba = scsi_4btoul(cdb->addr); 8650 num_blocks = scsi_4btoul(cdb->length); 8651 break; 8652 } 8653 case READ_16: 8654 case WRITE_16: { 8655 struct scsi_rw_16 *cdb; 8656 8657 cdb = (struct scsi_rw_16 *)ctsio->cdb; 8658 if (cdb->byte2 & SRW12_FUA) 8659 flags |= CTL_LLF_FUA; 8660 if (cdb->byte2 & SRW12_DPO) 8661 flags |= CTL_LLF_DPO; 8662 lba = scsi_8btou64(cdb->addr); 8663 num_blocks = scsi_4btoul(cdb->length); 8664 break; 8665 } 8666 case WRITE_ATOMIC_16: { 8667 struct scsi_write_atomic_16 *cdb; 8668 8669 if (lun->be_lun->atomicblock == 0) { 8670 ctl_set_invalid_opcode(ctsio); 8671 ctl_done((union ctl_io *)ctsio); 8672 return (CTL_RETVAL_COMPLETE); 8673 } 8674 8675 cdb = (struct scsi_write_atomic_16 *)ctsio->cdb; 8676 if (cdb->byte2 & SRW12_FUA) 8677 flags |= CTL_LLF_FUA; 8678 if (cdb->byte2 & SRW12_DPO) 8679 flags |= CTL_LLF_DPO; 8680 lba = scsi_8btou64(cdb->addr); 8681 num_blocks = scsi_2btoul(cdb->length); 8682 if (num_blocks > lun->be_lun->atomicblock) { 8683 ctl_set_invalid_field(ctsio, /*sks_valid*/ 1, 8684 /*command*/ 1, /*field*/ 12, /*bit_valid*/ 0, 8685 /*bit*/ 0); 8686 ctl_done((union ctl_io *)ctsio); 8687 return (CTL_RETVAL_COMPLETE); 8688 } 8689 break; 8690 } 8691 case WRITE_VERIFY_16: { 8692 struct scsi_write_verify_16 *cdb; 8693 8694 cdb = (struct scsi_write_verify_16 *)ctsio->cdb; 8695 flags |= CTL_LLF_FUA; 8696 if (cdb->byte2 & SWV_DPO) 8697 flags |= CTL_LLF_DPO; 8698 lba = scsi_8btou64(cdb->addr); 8699 num_blocks = scsi_4btoul(cdb->length); 8700 break; 8701 } 8702 default: 8703 /* 8704 * We got a command we don't support. This shouldn't 8705 * happen, commands should be filtered out above us. 8706 */ 8707 ctl_set_invalid_opcode(ctsio); 8708 ctl_done((union ctl_io *)ctsio); 8709 8710 return (CTL_RETVAL_COMPLETE); 8711 break; /* NOTREACHED */ 8712 } 8713 8714 /* 8715 * The first check is to make sure we're in bounds, the second 8716 * check is to catch wrap-around problems. If the lba + num blocks 8717 * is less than the lba, then we've wrapped around and the block 8718 * range is invalid anyway. 8719 */ 8720 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 8721 || ((lba + num_blocks) < lba)) { 8722 ctl_set_lba_out_of_range(ctsio); 8723 ctl_done((union ctl_io *)ctsio); 8724 return (CTL_RETVAL_COMPLETE); 8725 } 8726 8727 /* 8728 * According to SBC-3, a transfer length of 0 is not an error. 8729 * Note that this cannot happen with WRITE(6) or READ(6), since 0 8730 * translates to 256 blocks for those commands. 8731 */ 8732 if (num_blocks == 0) { 8733 ctl_set_success(ctsio); 8734 ctl_done((union ctl_io *)ctsio); 8735 return (CTL_RETVAL_COMPLETE); 8736 } 8737 8738 /* Set FUA and/or DPO if caches are disabled. */ 8739 if (isread) { 8740 if ((lun->mode_pages.caching_page[CTL_PAGE_CURRENT].flags1 & 8741 SCP_RCD) != 0) 8742 flags |= CTL_LLF_FUA | CTL_LLF_DPO; 8743 } else { 8744 if ((lun->mode_pages.caching_page[CTL_PAGE_CURRENT].flags1 & 8745 SCP_WCE) == 0) 8746 flags |= CTL_LLF_FUA; 8747 } 8748 8749 lbalen = (struct ctl_lba_len_flags *) 8750 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 8751 lbalen->lba = lba; 8752 lbalen->len = num_blocks; 8753 lbalen->flags = (isread ? CTL_LLF_READ : CTL_LLF_WRITE) | flags; 8754 8755 ctsio->kern_total_len = num_blocks * lun->be_lun->blocksize; 8756 ctsio->kern_rel_offset = 0; 8757 8758 CTL_DEBUG_PRINT(("ctl_read_write: calling data_submit()\n")); 8759 8760 retval = lun->backend->data_submit((union ctl_io *)ctsio); 8761 return (retval); 8762} 8763 8764static int 8765ctl_cnw_cont(union ctl_io *io) 8766{ 8767 struct ctl_scsiio *ctsio; 8768 struct ctl_lun *lun; 8769 struct ctl_lba_len_flags *lbalen; 8770 int retval; 8771 8772 ctsio = &io->scsiio; 8773 ctsio->io_hdr.status = CTL_STATUS_NONE; 8774 ctsio->io_hdr.flags &= ~CTL_FLAG_IO_CONT; 8775 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 8776 lbalen = (struct ctl_lba_len_flags *) 8777 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 8778 lbalen->flags &= ~CTL_LLF_COMPARE; 8779 lbalen->flags |= CTL_LLF_WRITE; 8780 8781 CTL_DEBUG_PRINT(("ctl_cnw_cont: calling data_submit()\n")); 8782 retval = lun->backend->data_submit((union ctl_io *)ctsio); 8783 return (retval); 8784} 8785 8786int 8787ctl_cnw(struct ctl_scsiio *ctsio) 8788{ 8789 struct ctl_lun *lun; 8790 struct ctl_lba_len_flags *lbalen; 8791 uint64_t lba; 8792 uint32_t num_blocks; 8793 int flags, retval; 8794 8795 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 8796 8797 CTL_DEBUG_PRINT(("ctl_cnw: command: %#x\n", ctsio->cdb[0])); 8798 8799 flags = 0; 8800 switch (ctsio->cdb[0]) { 8801 case COMPARE_AND_WRITE: { 8802 struct scsi_compare_and_write *cdb; 8803 8804 cdb = (struct scsi_compare_and_write *)ctsio->cdb; 8805 if (cdb->byte2 & SRW10_FUA) 8806 flags |= CTL_LLF_FUA; 8807 if (cdb->byte2 & SRW10_DPO) 8808 flags |= CTL_LLF_DPO; 8809 lba = scsi_8btou64(cdb->addr); 8810 num_blocks = cdb->length; 8811 break; 8812 } 8813 default: 8814 /* 8815 * We got a command we don't support. This shouldn't 8816 * happen, commands should be filtered out above us. 8817 */ 8818 ctl_set_invalid_opcode(ctsio); 8819 ctl_done((union ctl_io *)ctsio); 8820 8821 return (CTL_RETVAL_COMPLETE); 8822 break; /* NOTREACHED */ 8823 } 8824 8825 /* 8826 * The first check is to make sure we're in bounds, the second 8827 * check is to catch wrap-around problems. If the lba + num blocks 8828 * is less than the lba, then we've wrapped around and the block 8829 * range is invalid anyway. 8830 */ 8831 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 8832 || ((lba + num_blocks) < lba)) { 8833 ctl_set_lba_out_of_range(ctsio); 8834 ctl_done((union ctl_io *)ctsio); 8835 return (CTL_RETVAL_COMPLETE); 8836 } 8837 8838 /* 8839 * According to SBC-3, a transfer length of 0 is not an error. 8840 */ 8841 if (num_blocks == 0) { 8842 ctl_set_success(ctsio); 8843 ctl_done((union ctl_io *)ctsio); 8844 return (CTL_RETVAL_COMPLETE); 8845 } 8846 8847 /* Set FUA if write cache is disabled. */ 8848 if ((lun->mode_pages.caching_page[CTL_PAGE_CURRENT].flags1 & 8849 SCP_WCE) == 0) 8850 flags |= CTL_LLF_FUA; 8851 8852 ctsio->kern_total_len = 2 * num_blocks * lun->be_lun->blocksize; 8853 ctsio->kern_rel_offset = 0; 8854 8855 /* 8856 * Set the IO_CONT flag, so that if this I/O gets passed to 8857 * ctl_data_submit_done(), it'll get passed back to 8858 * ctl_ctl_cnw_cont() for further processing. 8859 */ 8860 ctsio->io_hdr.flags |= CTL_FLAG_IO_CONT; 8861 ctsio->io_cont = ctl_cnw_cont; 8862 8863 lbalen = (struct ctl_lba_len_flags *) 8864 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 8865 lbalen->lba = lba; 8866 lbalen->len = num_blocks; 8867 lbalen->flags = CTL_LLF_COMPARE | flags; 8868 8869 CTL_DEBUG_PRINT(("ctl_cnw: calling data_submit()\n")); 8870 retval = lun->backend->data_submit((union ctl_io *)ctsio); 8871 return (retval); 8872} 8873 8874int 8875ctl_verify(struct ctl_scsiio *ctsio) 8876{ 8877 struct ctl_lun *lun; 8878 struct ctl_lba_len_flags *lbalen; 8879 uint64_t lba; 8880 uint32_t num_blocks; 8881 int bytchk, flags; 8882 int retval; 8883 8884 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 8885 8886 CTL_DEBUG_PRINT(("ctl_verify: command: %#x\n", ctsio->cdb[0])); 8887 8888 bytchk = 0; 8889 flags = CTL_LLF_FUA; 8890 switch (ctsio->cdb[0]) { 8891 case VERIFY_10: { 8892 struct scsi_verify_10 *cdb; 8893 8894 cdb = (struct scsi_verify_10 *)ctsio->cdb; 8895 if (cdb->byte2 & SVFY_BYTCHK) 8896 bytchk = 1; 8897 if (cdb->byte2 & SVFY_DPO) 8898 flags |= CTL_LLF_DPO; 8899 lba = scsi_4btoul(cdb->addr); 8900 num_blocks = scsi_2btoul(cdb->length); 8901 break; 8902 } 8903 case VERIFY_12: { 8904 struct scsi_verify_12 *cdb; 8905 8906 cdb = (struct scsi_verify_12 *)ctsio->cdb; 8907 if (cdb->byte2 & SVFY_BYTCHK) 8908 bytchk = 1; 8909 if (cdb->byte2 & SVFY_DPO) 8910 flags |= CTL_LLF_DPO; 8911 lba = scsi_4btoul(cdb->addr); 8912 num_blocks = scsi_4btoul(cdb->length); 8913 break; 8914 } 8915 case VERIFY_16: { 8916 struct scsi_rw_16 *cdb; 8917 8918 cdb = (struct scsi_rw_16 *)ctsio->cdb; 8919 if (cdb->byte2 & SVFY_BYTCHK) 8920 bytchk = 1; 8921 if (cdb->byte2 & SVFY_DPO) 8922 flags |= CTL_LLF_DPO; 8923 lba = scsi_8btou64(cdb->addr); 8924 num_blocks = scsi_4btoul(cdb->length); 8925 break; 8926 } 8927 default: 8928 /* 8929 * We got a command we don't support. This shouldn't 8930 * happen, commands should be filtered out above us. 8931 */ 8932 ctl_set_invalid_opcode(ctsio); 8933 ctl_done((union ctl_io *)ctsio); 8934 return (CTL_RETVAL_COMPLETE); 8935 } 8936 8937 /* 8938 * The first check is to make sure we're in bounds, the second 8939 * check is to catch wrap-around problems. If the lba + num blocks 8940 * is less than the lba, then we've wrapped around and the block 8941 * range is invalid anyway. 8942 */ 8943 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 8944 || ((lba + num_blocks) < lba)) { 8945 ctl_set_lba_out_of_range(ctsio); 8946 ctl_done((union ctl_io *)ctsio); 8947 return (CTL_RETVAL_COMPLETE); 8948 } 8949 8950 /* 8951 * According to SBC-3, a transfer length of 0 is not an error. 8952 */ 8953 if (num_blocks == 0) { 8954 ctl_set_success(ctsio); 8955 ctl_done((union ctl_io *)ctsio); 8956 return (CTL_RETVAL_COMPLETE); 8957 } 8958 8959 lbalen = (struct ctl_lba_len_flags *) 8960 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 8961 lbalen->lba = lba; 8962 lbalen->len = num_blocks; 8963 if (bytchk) { 8964 lbalen->flags = CTL_LLF_COMPARE | flags; 8965 ctsio->kern_total_len = num_blocks * lun->be_lun->blocksize; 8966 } else { 8967 lbalen->flags = CTL_LLF_VERIFY | flags; 8968 ctsio->kern_total_len = 0; 8969 } 8970 ctsio->kern_rel_offset = 0; 8971 8972 CTL_DEBUG_PRINT(("ctl_verify: calling data_submit()\n")); 8973 retval = lun->backend->data_submit((union ctl_io *)ctsio); 8974 return (retval); 8975} 8976 8977int 8978ctl_report_luns(struct ctl_scsiio *ctsio) 8979{ 8980 struct ctl_softc *softc; 8981 struct scsi_report_luns *cdb; 8982 struct scsi_report_luns_data *lun_data; 8983 struct ctl_lun *lun, *request_lun; 8984 struct ctl_port *port; 8985 int num_luns, retval; 8986 uint32_t alloc_len, lun_datalen; 8987 int num_filled; 8988 uint32_t initidx, targ_lun_id, lun_id; 8989 8990 retval = CTL_RETVAL_COMPLETE; 8991 cdb = (struct scsi_report_luns *)ctsio->cdb; 8992 port = ctl_io_port(&ctsio->io_hdr); 8993 softc = port->ctl_softc; 8994 8995 CTL_DEBUG_PRINT(("ctl_report_luns\n")); 8996 8997 mtx_lock(&softc->ctl_lock); 8998 num_luns = 0; 8999 for (targ_lun_id = 0; targ_lun_id < CTL_MAX_LUNS; targ_lun_id++) { 9000 if (ctl_lun_map_from_port(port, targ_lun_id) < CTL_MAX_LUNS) 9001 num_luns++; 9002 } 9003 mtx_unlock(&softc->ctl_lock); 9004 9005 switch (cdb->select_report) { 9006 case RPL_REPORT_DEFAULT: 9007 case RPL_REPORT_ALL: 9008 case RPL_REPORT_NONSUBSID: 9009 break; 9010 case RPL_REPORT_WELLKNOWN: 9011 case RPL_REPORT_ADMIN: 9012 case RPL_REPORT_CONGLOM: 9013 num_luns = 0; 9014 break; 9015 default: 9016 ctl_set_invalid_field(ctsio, 9017 /*sks_valid*/ 1, 9018 /*command*/ 1, 9019 /*field*/ 2, 9020 /*bit_valid*/ 0, 9021 /*bit*/ 0); 9022 ctl_done((union ctl_io *)ctsio); 9023 return (retval); 9024 break; /* NOTREACHED */ 9025 } 9026 9027 alloc_len = scsi_4btoul(cdb->length); 9028 /* 9029 * The initiator has to allocate at least 16 bytes for this request, 9030 * so he can at least get the header and the first LUN. Otherwise 9031 * we reject the request (per SPC-3 rev 14, section 6.21). 9032 */ 9033 if (alloc_len < (sizeof(struct scsi_report_luns_data) + 9034 sizeof(struct scsi_report_luns_lundata))) { 9035 ctl_set_invalid_field(ctsio, 9036 /*sks_valid*/ 1, 9037 /*command*/ 1, 9038 /*field*/ 6, 9039 /*bit_valid*/ 0, 9040 /*bit*/ 0); 9041 ctl_done((union ctl_io *)ctsio); 9042 return (retval); 9043 } 9044 9045 request_lun = (struct ctl_lun *) 9046 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9047 9048 lun_datalen = sizeof(*lun_data) + 9049 (num_luns * sizeof(struct scsi_report_luns_lundata)); 9050 9051 ctsio->kern_data_ptr = malloc(lun_datalen, M_CTL, M_WAITOK | M_ZERO); 9052 lun_data = (struct scsi_report_luns_data *)ctsio->kern_data_ptr; 9053 ctsio->kern_sg_entries = 0; 9054 9055 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 9056 9057 mtx_lock(&softc->ctl_lock); 9058 for (targ_lun_id = 0, num_filled = 0; targ_lun_id < CTL_MAX_LUNS && num_filled < num_luns; targ_lun_id++) { 9059 lun_id = ctl_lun_map_from_port(port, targ_lun_id); 9060 if (lun_id >= CTL_MAX_LUNS) 9061 continue; 9062 lun = softc->ctl_luns[lun_id]; 9063 if (lun == NULL) 9064 continue; 9065 9066 if (targ_lun_id <= 0xff) { 9067 /* 9068 * Peripheral addressing method, bus number 0. 9069 */ 9070 lun_data->luns[num_filled].lundata[0] = 9071 RPL_LUNDATA_ATYP_PERIPH; 9072 lun_data->luns[num_filled].lundata[1] = targ_lun_id; 9073 num_filled++; 9074 } else if (targ_lun_id <= 0x3fff) { 9075 /* 9076 * Flat addressing method. 9077 */ 9078 lun_data->luns[num_filled].lundata[0] = 9079 RPL_LUNDATA_ATYP_FLAT | (targ_lun_id >> 8); 9080 lun_data->luns[num_filled].lundata[1] = 9081 (targ_lun_id & 0xff); 9082 num_filled++; 9083 } else if (targ_lun_id <= 0xffffff) { 9084 /* 9085 * Extended flat addressing method. 9086 */ 9087 lun_data->luns[num_filled].lundata[0] = 9088 RPL_LUNDATA_ATYP_EXTLUN | 0x12; 9089 scsi_ulto3b(targ_lun_id, 9090 &lun_data->luns[num_filled].lundata[1]); 9091 num_filled++; 9092 } else { 9093 printf("ctl_report_luns: bogus LUN number %jd, " 9094 "skipping\n", (intmax_t)targ_lun_id); 9095 } 9096 /* 9097 * According to SPC-3, rev 14 section 6.21: 9098 * 9099 * "The execution of a REPORT LUNS command to any valid and 9100 * installed logical unit shall clear the REPORTED LUNS DATA 9101 * HAS CHANGED unit attention condition for all logical 9102 * units of that target with respect to the requesting 9103 * initiator. A valid and installed logical unit is one 9104 * having a PERIPHERAL QUALIFIER of 000b in the standard 9105 * INQUIRY data (see 6.4.2)." 9106 * 9107 * If request_lun is NULL, the LUN this report luns command 9108 * was issued to is either disabled or doesn't exist. In that 9109 * case, we shouldn't clear any pending lun change unit 9110 * attention. 9111 */ 9112 if (request_lun != NULL) { 9113 mtx_lock(&lun->lun_lock); 9114 ctl_clr_ua(lun, initidx, CTL_UA_LUN_CHANGE); 9115 mtx_unlock(&lun->lun_lock); 9116 } 9117 } 9118 mtx_unlock(&softc->ctl_lock); 9119 9120 /* 9121 * It's quite possible that we've returned fewer LUNs than we allocated 9122 * space for. Trim it. 9123 */ 9124 lun_datalen = sizeof(*lun_data) + 9125 (num_filled * sizeof(struct scsi_report_luns_lundata)); 9126 9127 if (lun_datalen < alloc_len) { 9128 ctsio->residual = alloc_len - lun_datalen; 9129 ctsio->kern_data_len = lun_datalen; 9130 ctsio->kern_total_len = lun_datalen; 9131 } else { 9132 ctsio->residual = 0; 9133 ctsio->kern_data_len = alloc_len; 9134 ctsio->kern_total_len = alloc_len; 9135 } 9136 ctsio->kern_data_resid = 0; 9137 ctsio->kern_rel_offset = 0; 9138 ctsio->kern_sg_entries = 0; 9139 9140 /* 9141 * We set this to the actual data length, regardless of how much 9142 * space we actually have to return results. If the user looks at 9143 * this value, he'll know whether or not he allocated enough space 9144 * and reissue the command if necessary. We don't support well 9145 * known logical units, so if the user asks for that, return none. 9146 */ 9147 scsi_ulto4b(lun_datalen - 8, lun_data->length); 9148 9149 /* 9150 * We can only return SCSI_STATUS_CHECK_COND when we can't satisfy 9151 * this request. 9152 */ 9153 ctl_set_success(ctsio); 9154 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9155 ctsio->be_move_done = ctl_config_move_done; 9156 ctl_datamove((union ctl_io *)ctsio); 9157 return (retval); 9158} 9159 9160int 9161ctl_request_sense(struct ctl_scsiio *ctsio) 9162{ 9163 struct scsi_request_sense *cdb; 9164 struct scsi_sense_data *sense_ptr; 9165 struct ctl_softc *ctl_softc; 9166 struct ctl_lun *lun; 9167 uint32_t initidx; 9168 int have_error; 9169 scsi_sense_data_type sense_format; 9170 ctl_ua_type ua_type; 9171 9172 cdb = (struct scsi_request_sense *)ctsio->cdb; 9173 9174 ctl_softc = control_softc; 9175 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9176 9177 CTL_DEBUG_PRINT(("ctl_request_sense\n")); 9178 9179 /* 9180 * Determine which sense format the user wants. 9181 */ 9182 if (cdb->byte2 & SRS_DESC) 9183 sense_format = SSD_TYPE_DESC; 9184 else 9185 sense_format = SSD_TYPE_FIXED; 9186 9187 ctsio->kern_data_ptr = malloc(sizeof(*sense_ptr), M_CTL, M_WAITOK); 9188 sense_ptr = (struct scsi_sense_data *)ctsio->kern_data_ptr; 9189 ctsio->kern_sg_entries = 0; 9190 9191 /* 9192 * struct scsi_sense_data, which is currently set to 256 bytes, is 9193 * larger than the largest allowed value for the length field in the 9194 * REQUEST SENSE CDB, which is 252 bytes as of SPC-4. 9195 */ 9196 ctsio->residual = 0; 9197 ctsio->kern_data_len = cdb->length; 9198 ctsio->kern_total_len = cdb->length; 9199 9200 ctsio->kern_data_resid = 0; 9201 ctsio->kern_rel_offset = 0; 9202 ctsio->kern_sg_entries = 0; 9203 9204 /* 9205 * If we don't have a LUN, we don't have any pending sense. 9206 */ 9207 if (lun == NULL) 9208 goto no_sense; 9209 9210 have_error = 0; 9211 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 9212 /* 9213 * Check for pending sense, and then for pending unit attentions. 9214 * Pending sense gets returned first, then pending unit attentions. 9215 */ 9216 mtx_lock(&lun->lun_lock); 9217#ifdef CTL_WITH_CA 9218 if (ctl_is_set(lun->have_ca, initidx)) { 9219 scsi_sense_data_type stored_format; 9220 9221 /* 9222 * Check to see which sense format was used for the stored 9223 * sense data. 9224 */ 9225 stored_format = scsi_sense_type(&lun->pending_sense[initidx]); 9226 9227 /* 9228 * If the user requested a different sense format than the 9229 * one we stored, then we need to convert it to the other 9230 * format. If we're going from descriptor to fixed format 9231 * sense data, we may lose things in translation, depending 9232 * on what options were used. 9233 * 9234 * If the stored format is SSD_TYPE_NONE (i.e. invalid), 9235 * for some reason we'll just copy it out as-is. 9236 */ 9237 if ((stored_format == SSD_TYPE_FIXED) 9238 && (sense_format == SSD_TYPE_DESC)) 9239 ctl_sense_to_desc((struct scsi_sense_data_fixed *) 9240 &lun->pending_sense[initidx], 9241 (struct scsi_sense_data_desc *)sense_ptr); 9242 else if ((stored_format == SSD_TYPE_DESC) 9243 && (sense_format == SSD_TYPE_FIXED)) 9244 ctl_sense_to_fixed((struct scsi_sense_data_desc *) 9245 &lun->pending_sense[initidx], 9246 (struct scsi_sense_data_fixed *)sense_ptr); 9247 else 9248 memcpy(sense_ptr, &lun->pending_sense[initidx], 9249 MIN(sizeof(*sense_ptr), 9250 sizeof(lun->pending_sense[initidx]))); 9251 9252 ctl_clear_mask(lun->have_ca, initidx); 9253 have_error = 1; 9254 } else 9255#endif 9256 { 9257 ua_type = ctl_build_ua(lun, initidx, sense_ptr, sense_format); 9258 if (ua_type != CTL_UA_NONE) 9259 have_error = 1; 9260 if (ua_type == CTL_UA_LUN_CHANGE) { 9261 mtx_unlock(&lun->lun_lock); 9262 mtx_lock(&ctl_softc->ctl_lock); 9263 ctl_clr_ua_allluns(ctl_softc, initidx, ua_type); 9264 mtx_unlock(&ctl_softc->ctl_lock); 9265 mtx_lock(&lun->lun_lock); 9266 } 9267 9268 } 9269 mtx_unlock(&lun->lun_lock); 9270 9271 /* 9272 * We already have a pending error, return it. 9273 */ 9274 if (have_error != 0) { 9275 /* 9276 * We report the SCSI status as OK, since the status of the 9277 * request sense command itself is OK. 9278 * We report 0 for the sense length, because we aren't doing 9279 * autosense in this case. We're reporting sense as 9280 * parameter data. 9281 */ 9282 ctl_set_success(ctsio); 9283 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9284 ctsio->be_move_done = ctl_config_move_done; 9285 ctl_datamove((union ctl_io *)ctsio); 9286 return (CTL_RETVAL_COMPLETE); 9287 } 9288 9289no_sense: 9290 9291 /* 9292 * No sense information to report, so we report that everything is 9293 * okay. 9294 */ 9295 ctl_set_sense_data(sense_ptr, 9296 lun, 9297 sense_format, 9298 /*current_error*/ 1, 9299 /*sense_key*/ SSD_KEY_NO_SENSE, 9300 /*asc*/ 0x00, 9301 /*ascq*/ 0x00, 9302 SSD_ELEM_NONE); 9303 9304 /* 9305 * We report 0 for the sense length, because we aren't doing 9306 * autosense in this case. We're reporting sense as parameter data. 9307 */ 9308 ctl_set_success(ctsio); 9309 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9310 ctsio->be_move_done = ctl_config_move_done; 9311 ctl_datamove((union ctl_io *)ctsio); 9312 return (CTL_RETVAL_COMPLETE); 9313} 9314 9315int 9316ctl_tur(struct ctl_scsiio *ctsio) 9317{ 9318 9319 CTL_DEBUG_PRINT(("ctl_tur\n")); 9320 9321 ctl_set_success(ctsio); 9322 ctl_done((union ctl_io *)ctsio); 9323 9324 return (CTL_RETVAL_COMPLETE); 9325} 9326 9327/* 9328 * SCSI VPD page 0x00, the Supported VPD Pages page. 9329 */ 9330static int 9331ctl_inquiry_evpd_supported(struct ctl_scsiio *ctsio, int alloc_len) 9332{ 9333 struct scsi_vpd_supported_pages *pages; 9334 int sup_page_size; 9335 struct ctl_lun *lun; 9336 int p; 9337 9338 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9339 9340 sup_page_size = sizeof(struct scsi_vpd_supported_pages) * 9341 SCSI_EVPD_NUM_SUPPORTED_PAGES; 9342 ctsio->kern_data_ptr = malloc(sup_page_size, M_CTL, M_WAITOK | M_ZERO); 9343 pages = (struct scsi_vpd_supported_pages *)ctsio->kern_data_ptr; 9344 ctsio->kern_sg_entries = 0; 9345 9346 if (sup_page_size < alloc_len) { 9347 ctsio->residual = alloc_len - sup_page_size; 9348 ctsio->kern_data_len = sup_page_size; 9349 ctsio->kern_total_len = sup_page_size; 9350 } else { 9351 ctsio->residual = 0; 9352 ctsio->kern_data_len = alloc_len; 9353 ctsio->kern_total_len = alloc_len; 9354 } 9355 ctsio->kern_data_resid = 0; 9356 ctsio->kern_rel_offset = 0; 9357 ctsio->kern_sg_entries = 0; 9358 9359 /* 9360 * The control device is always connected. The disk device, on the 9361 * other hand, may not be online all the time. Need to change this 9362 * to figure out whether the disk device is actually online or not. 9363 */ 9364 if (lun != NULL) 9365 pages->device = (SID_QUAL_LU_CONNECTED << 5) | 9366 lun->be_lun->lun_type; 9367 else 9368 pages->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9369 9370 p = 0; 9371 /* Supported VPD pages */ 9372 pages->page_list[p++] = SVPD_SUPPORTED_PAGES; 9373 /* Serial Number */ 9374 pages->page_list[p++] = SVPD_UNIT_SERIAL_NUMBER; 9375 /* Device Identification */ 9376 pages->page_list[p++] = SVPD_DEVICE_ID; 9377 /* Extended INQUIRY Data */ 9378 pages->page_list[p++] = SVPD_EXTENDED_INQUIRY_DATA; 9379 /* Mode Page Policy */ 9380 pages->page_list[p++] = SVPD_MODE_PAGE_POLICY; 9381 /* SCSI Ports */ 9382 pages->page_list[p++] = SVPD_SCSI_PORTS; 9383 /* Third-party Copy */ 9384 pages->page_list[p++] = SVPD_SCSI_TPC; 9385 if (lun != NULL && lun->be_lun->lun_type == T_DIRECT) { 9386 /* Block limits */ 9387 pages->page_list[p++] = SVPD_BLOCK_LIMITS; 9388 /* Block Device Characteristics */ 9389 pages->page_list[p++] = SVPD_BDC; 9390 /* Logical Block Provisioning */ 9391 pages->page_list[p++] = SVPD_LBP; 9392 } 9393 pages->length = p; 9394 9395 ctl_set_success(ctsio); 9396 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9397 ctsio->be_move_done = ctl_config_move_done; 9398 ctl_datamove((union ctl_io *)ctsio); 9399 return (CTL_RETVAL_COMPLETE); 9400} 9401 9402/* 9403 * SCSI VPD page 0x80, the Unit Serial Number page. 9404 */ 9405static int 9406ctl_inquiry_evpd_serial(struct ctl_scsiio *ctsio, int alloc_len) 9407{ 9408 struct scsi_vpd_unit_serial_number *sn_ptr; 9409 struct ctl_lun *lun; 9410 int data_len; 9411 9412 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9413 9414 data_len = 4 + CTL_SN_LEN; 9415 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9416 sn_ptr = (struct scsi_vpd_unit_serial_number *)ctsio->kern_data_ptr; 9417 if (data_len < alloc_len) { 9418 ctsio->residual = alloc_len - data_len; 9419 ctsio->kern_data_len = data_len; 9420 ctsio->kern_total_len = data_len; 9421 } else { 9422 ctsio->residual = 0; 9423 ctsio->kern_data_len = alloc_len; 9424 ctsio->kern_total_len = alloc_len; 9425 } 9426 ctsio->kern_data_resid = 0; 9427 ctsio->kern_rel_offset = 0; 9428 ctsio->kern_sg_entries = 0; 9429 9430 /* 9431 * The control device is always connected. The disk device, on the 9432 * other hand, may not be online all the time. Need to change this 9433 * to figure out whether the disk device is actually online or not. 9434 */ 9435 if (lun != NULL) 9436 sn_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9437 lun->be_lun->lun_type; 9438 else 9439 sn_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9440 9441 sn_ptr->page_code = SVPD_UNIT_SERIAL_NUMBER; 9442 sn_ptr->length = CTL_SN_LEN; 9443 /* 9444 * If we don't have a LUN, we just leave the serial number as 9445 * all spaces. 9446 */ 9447 if (lun != NULL) { 9448 strncpy((char *)sn_ptr->serial_num, 9449 (char *)lun->be_lun->serial_num, CTL_SN_LEN); 9450 } else 9451 memset(sn_ptr->serial_num, 0x20, CTL_SN_LEN); 9452 9453 ctl_set_success(ctsio); 9454 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9455 ctsio->be_move_done = ctl_config_move_done; 9456 ctl_datamove((union ctl_io *)ctsio); 9457 return (CTL_RETVAL_COMPLETE); 9458} 9459 9460 9461/* 9462 * SCSI VPD page 0x86, the Extended INQUIRY Data page. 9463 */ 9464static int 9465ctl_inquiry_evpd_eid(struct ctl_scsiio *ctsio, int alloc_len) 9466{ 9467 struct scsi_vpd_extended_inquiry_data *eid_ptr; 9468 struct ctl_lun *lun; 9469 int data_len; 9470 9471 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9472 9473 data_len = sizeof(struct scsi_vpd_extended_inquiry_data); 9474 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9475 eid_ptr = (struct scsi_vpd_extended_inquiry_data *)ctsio->kern_data_ptr; 9476 ctsio->kern_sg_entries = 0; 9477 9478 if (data_len < alloc_len) { 9479 ctsio->residual = alloc_len - data_len; 9480 ctsio->kern_data_len = data_len; 9481 ctsio->kern_total_len = data_len; 9482 } else { 9483 ctsio->residual = 0; 9484 ctsio->kern_data_len = alloc_len; 9485 ctsio->kern_total_len = alloc_len; 9486 } 9487 ctsio->kern_data_resid = 0; 9488 ctsio->kern_rel_offset = 0; 9489 ctsio->kern_sg_entries = 0; 9490 9491 /* 9492 * The control device is always connected. The disk device, on the 9493 * other hand, may not be online all the time. 9494 */ 9495 if (lun != NULL) 9496 eid_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9497 lun->be_lun->lun_type; 9498 else 9499 eid_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9500 eid_ptr->page_code = SVPD_EXTENDED_INQUIRY_DATA; 9501 scsi_ulto2b(data_len - 4, eid_ptr->page_length); 9502 /* 9503 * We support head of queue, ordered and simple tags. 9504 */ 9505 eid_ptr->flags2 = SVPD_EID_HEADSUP | SVPD_EID_ORDSUP | SVPD_EID_SIMPSUP; 9506 /* 9507 * Volatile cache supported. 9508 */ 9509 eid_ptr->flags3 = SVPD_EID_V_SUP; 9510 9511 /* 9512 * This means that we clear the REPORTED LUNS DATA HAS CHANGED unit 9513 * attention for a particular IT nexus on all LUNs once we report 9514 * it to that nexus once. This bit is required as of SPC-4. 9515 */ 9516 eid_ptr->flags4 = SVPD_EID_LUICLT; 9517 9518 /* 9519 * XXX KDM in order to correctly answer this, we would need 9520 * information from the SIM to determine how much sense data it 9521 * can send. So this would really be a path inquiry field, most 9522 * likely. This can be set to a maximum of 252 according to SPC-4, 9523 * but the hardware may or may not be able to support that much. 9524 * 0 just means that the maximum sense data length is not reported. 9525 */ 9526 eid_ptr->max_sense_length = 0; 9527 9528 ctl_set_success(ctsio); 9529 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9530 ctsio->be_move_done = ctl_config_move_done; 9531 ctl_datamove((union ctl_io *)ctsio); 9532 return (CTL_RETVAL_COMPLETE); 9533} 9534 9535static int 9536ctl_inquiry_evpd_mpp(struct ctl_scsiio *ctsio, int alloc_len) 9537{ 9538 struct scsi_vpd_mode_page_policy *mpp_ptr; 9539 struct ctl_lun *lun; 9540 int data_len; 9541 9542 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9543 9544 data_len = sizeof(struct scsi_vpd_mode_page_policy) + 9545 sizeof(struct scsi_vpd_mode_page_policy_descr); 9546 9547 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9548 mpp_ptr = (struct scsi_vpd_mode_page_policy *)ctsio->kern_data_ptr; 9549 ctsio->kern_sg_entries = 0; 9550 9551 if (data_len < alloc_len) { 9552 ctsio->residual = alloc_len - data_len; 9553 ctsio->kern_data_len = data_len; 9554 ctsio->kern_total_len = data_len; 9555 } else { 9556 ctsio->residual = 0; 9557 ctsio->kern_data_len = alloc_len; 9558 ctsio->kern_total_len = alloc_len; 9559 } 9560 ctsio->kern_data_resid = 0; 9561 ctsio->kern_rel_offset = 0; 9562 ctsio->kern_sg_entries = 0; 9563 9564 /* 9565 * The control device is always connected. The disk device, on the 9566 * other hand, may not be online all the time. 9567 */ 9568 if (lun != NULL) 9569 mpp_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9570 lun->be_lun->lun_type; 9571 else 9572 mpp_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9573 mpp_ptr->page_code = SVPD_MODE_PAGE_POLICY; 9574 scsi_ulto2b(data_len - 4, mpp_ptr->page_length); 9575 mpp_ptr->descr[0].page_code = 0x3f; 9576 mpp_ptr->descr[0].subpage_code = 0xff; 9577 mpp_ptr->descr[0].policy = SVPD_MPP_SHARED; 9578 9579 ctl_set_success(ctsio); 9580 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9581 ctsio->be_move_done = ctl_config_move_done; 9582 ctl_datamove((union ctl_io *)ctsio); 9583 return (CTL_RETVAL_COMPLETE); 9584} 9585 9586/* 9587 * SCSI VPD page 0x83, the Device Identification page. 9588 */ 9589static int 9590ctl_inquiry_evpd_devid(struct ctl_scsiio *ctsio, int alloc_len) 9591{ 9592 struct scsi_vpd_device_id *devid_ptr; 9593 struct scsi_vpd_id_descriptor *desc; 9594 struct ctl_softc *softc; 9595 struct ctl_lun *lun; 9596 struct ctl_port *port; 9597 int data_len; 9598 uint8_t proto; 9599 9600 softc = control_softc; 9601 9602 port = ctl_io_port(&ctsio->io_hdr); 9603 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9604 9605 data_len = sizeof(struct scsi_vpd_device_id) + 9606 sizeof(struct scsi_vpd_id_descriptor) + 9607 sizeof(struct scsi_vpd_id_rel_trgt_port_id) + 9608 sizeof(struct scsi_vpd_id_descriptor) + 9609 sizeof(struct scsi_vpd_id_trgt_port_grp_id); 9610 if (lun && lun->lun_devid) 9611 data_len += lun->lun_devid->len; 9612 if (port && port->port_devid) 9613 data_len += port->port_devid->len; 9614 if (port && port->target_devid) 9615 data_len += port->target_devid->len; 9616 9617 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9618 devid_ptr = (struct scsi_vpd_device_id *)ctsio->kern_data_ptr; 9619 ctsio->kern_sg_entries = 0; 9620 9621 if (data_len < alloc_len) { 9622 ctsio->residual = alloc_len - data_len; 9623 ctsio->kern_data_len = data_len; 9624 ctsio->kern_total_len = data_len; 9625 } else { 9626 ctsio->residual = 0; 9627 ctsio->kern_data_len = alloc_len; 9628 ctsio->kern_total_len = alloc_len; 9629 } 9630 ctsio->kern_data_resid = 0; 9631 ctsio->kern_rel_offset = 0; 9632 ctsio->kern_sg_entries = 0; 9633 9634 /* 9635 * The control device is always connected. The disk device, on the 9636 * other hand, may not be online all the time. 9637 */ 9638 if (lun != NULL) 9639 devid_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9640 lun->be_lun->lun_type; 9641 else 9642 devid_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9643 devid_ptr->page_code = SVPD_DEVICE_ID; 9644 scsi_ulto2b(data_len - 4, devid_ptr->length); 9645 9646 if (port && port->port_type == CTL_PORT_FC) 9647 proto = SCSI_PROTO_FC << 4; 9648 else if (port && port->port_type == CTL_PORT_ISCSI) 9649 proto = SCSI_PROTO_ISCSI << 4; 9650 else 9651 proto = SCSI_PROTO_SPI << 4; 9652 desc = (struct scsi_vpd_id_descriptor *)devid_ptr->desc_list; 9653 9654 /* 9655 * We're using a LUN association here. i.e., this device ID is a 9656 * per-LUN identifier. 9657 */ 9658 if (lun && lun->lun_devid) { 9659 memcpy(desc, lun->lun_devid->data, lun->lun_devid->len); 9660 desc = (struct scsi_vpd_id_descriptor *)((uint8_t *)desc + 9661 lun->lun_devid->len); 9662 } 9663 9664 /* 9665 * This is for the WWPN which is a port association. 9666 */ 9667 if (port && port->port_devid) { 9668 memcpy(desc, port->port_devid->data, port->port_devid->len); 9669 desc = (struct scsi_vpd_id_descriptor *)((uint8_t *)desc + 9670 port->port_devid->len); 9671 } 9672 9673 /* 9674 * This is for the Relative Target Port(type 4h) identifier 9675 */ 9676 desc->proto_codeset = proto | SVPD_ID_CODESET_BINARY; 9677 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_PORT | 9678 SVPD_ID_TYPE_RELTARG; 9679 desc->length = 4; 9680 scsi_ulto2b(ctsio->io_hdr.nexus.targ_port, &desc->identifier[2]); 9681 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 9682 sizeof(struct scsi_vpd_id_rel_trgt_port_id)); 9683 9684 /* 9685 * This is for the Target Port Group(type 5h) identifier 9686 */ 9687 desc->proto_codeset = proto | SVPD_ID_CODESET_BINARY; 9688 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_PORT | 9689 SVPD_ID_TYPE_TPORTGRP; 9690 desc->length = 4; 9691 scsi_ulto2b(ctsio->io_hdr.nexus.targ_port / softc->port_cnt + 1, 9692 &desc->identifier[2]); 9693 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 9694 sizeof(struct scsi_vpd_id_trgt_port_grp_id)); 9695 9696 /* 9697 * This is for the Target identifier 9698 */ 9699 if (port && port->target_devid) { 9700 memcpy(desc, port->target_devid->data, port->target_devid->len); 9701 } 9702 9703 ctl_set_success(ctsio); 9704 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9705 ctsio->be_move_done = ctl_config_move_done; 9706 ctl_datamove((union ctl_io *)ctsio); 9707 return (CTL_RETVAL_COMPLETE); 9708} 9709 9710static int 9711ctl_inquiry_evpd_scsi_ports(struct ctl_scsiio *ctsio, int alloc_len) 9712{ 9713 struct ctl_softc *softc = control_softc; 9714 struct scsi_vpd_scsi_ports *sp; 9715 struct scsi_vpd_port_designation *pd; 9716 struct scsi_vpd_port_designation_cont *pdc; 9717 struct ctl_lun *lun; 9718 struct ctl_port *port; 9719 int data_len, num_target_ports, iid_len, id_len; 9720 9721 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9722 9723 num_target_ports = 0; 9724 iid_len = 0; 9725 id_len = 0; 9726 mtx_lock(&softc->ctl_lock); 9727 STAILQ_FOREACH(port, &softc->port_list, links) { 9728 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 9729 continue; 9730 if (lun != NULL && 9731 ctl_lun_map_to_port(port, lun->lun) >= CTL_MAX_LUNS) 9732 continue; 9733 num_target_ports++; 9734 if (port->init_devid) 9735 iid_len += port->init_devid->len; 9736 if (port->port_devid) 9737 id_len += port->port_devid->len; 9738 } 9739 mtx_unlock(&softc->ctl_lock); 9740 9741 data_len = sizeof(struct scsi_vpd_scsi_ports) + 9742 num_target_ports * (sizeof(struct scsi_vpd_port_designation) + 9743 sizeof(struct scsi_vpd_port_designation_cont)) + iid_len + id_len; 9744 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9745 sp = (struct scsi_vpd_scsi_ports *)ctsio->kern_data_ptr; 9746 ctsio->kern_sg_entries = 0; 9747 9748 if (data_len < alloc_len) { 9749 ctsio->residual = alloc_len - data_len; 9750 ctsio->kern_data_len = data_len; 9751 ctsio->kern_total_len = data_len; 9752 } else { 9753 ctsio->residual = 0; 9754 ctsio->kern_data_len = alloc_len; 9755 ctsio->kern_total_len = alloc_len; 9756 } 9757 ctsio->kern_data_resid = 0; 9758 ctsio->kern_rel_offset = 0; 9759 ctsio->kern_sg_entries = 0; 9760 9761 /* 9762 * The control device is always connected. The disk device, on the 9763 * other hand, may not be online all the time. Need to change this 9764 * to figure out whether the disk device is actually online or not. 9765 */ 9766 if (lun != NULL) 9767 sp->device = (SID_QUAL_LU_CONNECTED << 5) | 9768 lun->be_lun->lun_type; 9769 else 9770 sp->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9771 9772 sp->page_code = SVPD_SCSI_PORTS; 9773 scsi_ulto2b(data_len - sizeof(struct scsi_vpd_scsi_ports), 9774 sp->page_length); 9775 pd = &sp->design[0]; 9776 9777 mtx_lock(&softc->ctl_lock); 9778 STAILQ_FOREACH(port, &softc->port_list, links) { 9779 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 9780 continue; 9781 if (lun != NULL && 9782 ctl_lun_map_to_port(port, lun->lun) >= CTL_MAX_LUNS) 9783 continue; 9784 scsi_ulto2b(port->targ_port, pd->relative_port_id); 9785 if (port->init_devid) { 9786 iid_len = port->init_devid->len; 9787 memcpy(pd->initiator_transportid, 9788 port->init_devid->data, port->init_devid->len); 9789 } else 9790 iid_len = 0; 9791 scsi_ulto2b(iid_len, pd->initiator_transportid_length); 9792 pdc = (struct scsi_vpd_port_designation_cont *) 9793 (&pd->initiator_transportid[iid_len]); 9794 if (port->port_devid) { 9795 id_len = port->port_devid->len; 9796 memcpy(pdc->target_port_descriptors, 9797 port->port_devid->data, port->port_devid->len); 9798 } else 9799 id_len = 0; 9800 scsi_ulto2b(id_len, pdc->target_port_descriptors_length); 9801 pd = (struct scsi_vpd_port_designation *) 9802 ((uint8_t *)pdc->target_port_descriptors + id_len); 9803 } 9804 mtx_unlock(&softc->ctl_lock); 9805 9806 ctl_set_success(ctsio); 9807 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9808 ctsio->be_move_done = ctl_config_move_done; 9809 ctl_datamove((union ctl_io *)ctsio); 9810 return (CTL_RETVAL_COMPLETE); 9811} 9812 9813static int 9814ctl_inquiry_evpd_block_limits(struct ctl_scsiio *ctsio, int alloc_len) 9815{ 9816 struct scsi_vpd_block_limits *bl_ptr; 9817 struct ctl_lun *lun; 9818 9819 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9820 9821 ctsio->kern_data_ptr = malloc(sizeof(*bl_ptr), M_CTL, M_WAITOK | M_ZERO); 9822 bl_ptr = (struct scsi_vpd_block_limits *)ctsio->kern_data_ptr; 9823 ctsio->kern_sg_entries = 0; 9824 9825 if (sizeof(*bl_ptr) < alloc_len) { 9826 ctsio->residual = alloc_len - sizeof(*bl_ptr); 9827 ctsio->kern_data_len = sizeof(*bl_ptr); 9828 ctsio->kern_total_len = sizeof(*bl_ptr); 9829 } else { 9830 ctsio->residual = 0; 9831 ctsio->kern_data_len = alloc_len; 9832 ctsio->kern_total_len = alloc_len; 9833 } 9834 ctsio->kern_data_resid = 0; 9835 ctsio->kern_rel_offset = 0; 9836 ctsio->kern_sg_entries = 0; 9837 9838 /* 9839 * The control device is always connected. The disk device, on the 9840 * other hand, may not be online all the time. Need to change this 9841 * to figure out whether the disk device is actually online or not. 9842 */ 9843 if (lun != NULL) 9844 bl_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9845 lun->be_lun->lun_type; 9846 else 9847 bl_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9848 9849 bl_ptr->page_code = SVPD_BLOCK_LIMITS; 9850 scsi_ulto2b(sizeof(*bl_ptr) - 4, bl_ptr->page_length); 9851 bl_ptr->max_cmp_write_len = 0xff; 9852 scsi_ulto4b(0xffffffff, bl_ptr->max_txfer_len); 9853 if (lun != NULL) { 9854 scsi_ulto4b(lun->be_lun->opttxferlen, bl_ptr->opt_txfer_len); 9855 if (lun->be_lun->flags & CTL_LUN_FLAG_UNMAP) { 9856 scsi_ulto4b(0xffffffff, bl_ptr->max_unmap_lba_cnt); 9857 scsi_ulto4b(0xffffffff, bl_ptr->max_unmap_blk_cnt); 9858 if (lun->be_lun->ublockexp != 0) { 9859 scsi_ulto4b((1 << lun->be_lun->ublockexp), 9860 bl_ptr->opt_unmap_grain); 9861 scsi_ulto4b(0x80000000 | lun->be_lun->ublockoff, 9862 bl_ptr->unmap_grain_align); 9863 } 9864 } 9865 scsi_ulto4b(lun->be_lun->atomicblock, 9866 bl_ptr->max_atomic_transfer_length); 9867 scsi_ulto4b(0, bl_ptr->atomic_alignment); 9868 scsi_ulto4b(0, bl_ptr->atomic_transfer_length_granularity); 9869 scsi_ulto4b(0, bl_ptr->max_atomic_transfer_length_with_atomic_boundary); 9870 scsi_ulto4b(0, bl_ptr->max_atomic_boundary_size); 9871 } 9872 scsi_u64to8b(UINT64_MAX, bl_ptr->max_write_same_length); 9873 9874 ctl_set_success(ctsio); 9875 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9876 ctsio->be_move_done = ctl_config_move_done; 9877 ctl_datamove((union ctl_io *)ctsio); 9878 return (CTL_RETVAL_COMPLETE); 9879} 9880 9881static int 9882ctl_inquiry_evpd_bdc(struct ctl_scsiio *ctsio, int alloc_len) 9883{ 9884 struct scsi_vpd_block_device_characteristics *bdc_ptr; 9885 struct ctl_lun *lun; 9886 const char *value; 9887 u_int i; 9888 9889 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9890 9891 ctsio->kern_data_ptr = malloc(sizeof(*bdc_ptr), M_CTL, M_WAITOK | M_ZERO); 9892 bdc_ptr = (struct scsi_vpd_block_device_characteristics *)ctsio->kern_data_ptr; 9893 ctsio->kern_sg_entries = 0; 9894 9895 if (sizeof(*bdc_ptr) < alloc_len) { 9896 ctsio->residual = alloc_len - sizeof(*bdc_ptr); 9897 ctsio->kern_data_len = sizeof(*bdc_ptr); 9898 ctsio->kern_total_len = sizeof(*bdc_ptr); 9899 } else { 9900 ctsio->residual = 0; 9901 ctsio->kern_data_len = alloc_len; 9902 ctsio->kern_total_len = alloc_len; 9903 } 9904 ctsio->kern_data_resid = 0; 9905 ctsio->kern_rel_offset = 0; 9906 ctsio->kern_sg_entries = 0; 9907 9908 /* 9909 * The control device is always connected. The disk device, on the 9910 * other hand, may not be online all the time. Need to change this 9911 * to figure out whether the disk device is actually online or not. 9912 */ 9913 if (lun != NULL) 9914 bdc_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9915 lun->be_lun->lun_type; 9916 else 9917 bdc_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9918 bdc_ptr->page_code = SVPD_BDC; 9919 scsi_ulto2b(sizeof(*bdc_ptr) - 4, bdc_ptr->page_length); 9920 if (lun != NULL && 9921 (value = ctl_get_opt(&lun->be_lun->options, "rpm")) != NULL) 9922 i = strtol(value, NULL, 0); 9923 else 9924 i = CTL_DEFAULT_ROTATION_RATE; 9925 scsi_ulto2b(i, bdc_ptr->medium_rotation_rate); 9926 if (lun != NULL && 9927 (value = ctl_get_opt(&lun->be_lun->options, "formfactor")) != NULL) 9928 i = strtol(value, NULL, 0); 9929 else 9930 i = 0; 9931 bdc_ptr->wab_wac_ff = (i & 0x0f); 9932 bdc_ptr->flags = SVPD_FUAB | SVPD_VBULS; 9933 9934 ctl_set_success(ctsio); 9935 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9936 ctsio->be_move_done = ctl_config_move_done; 9937 ctl_datamove((union ctl_io *)ctsio); 9938 return (CTL_RETVAL_COMPLETE); 9939} 9940 9941static int 9942ctl_inquiry_evpd_lbp(struct ctl_scsiio *ctsio, int alloc_len) 9943{ 9944 struct scsi_vpd_logical_block_prov *lbp_ptr; 9945 struct ctl_lun *lun; 9946 9947 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9948 9949 ctsio->kern_data_ptr = malloc(sizeof(*lbp_ptr), M_CTL, M_WAITOK | M_ZERO); 9950 lbp_ptr = (struct scsi_vpd_logical_block_prov *)ctsio->kern_data_ptr; 9951 ctsio->kern_sg_entries = 0; 9952 9953 if (sizeof(*lbp_ptr) < alloc_len) { 9954 ctsio->residual = alloc_len - sizeof(*lbp_ptr); 9955 ctsio->kern_data_len = sizeof(*lbp_ptr); 9956 ctsio->kern_total_len = sizeof(*lbp_ptr); 9957 } else { 9958 ctsio->residual = 0; 9959 ctsio->kern_data_len = alloc_len; 9960 ctsio->kern_total_len = alloc_len; 9961 } 9962 ctsio->kern_data_resid = 0; 9963 ctsio->kern_rel_offset = 0; 9964 ctsio->kern_sg_entries = 0; 9965 9966 /* 9967 * The control device is always connected. The disk device, on the 9968 * other hand, may not be online all the time. Need to change this 9969 * to figure out whether the disk device is actually online or not. 9970 */ 9971 if (lun != NULL) 9972 lbp_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9973 lun->be_lun->lun_type; 9974 else 9975 lbp_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9976 9977 lbp_ptr->page_code = SVPD_LBP; 9978 scsi_ulto2b(sizeof(*lbp_ptr) - 4, lbp_ptr->page_length); 9979 lbp_ptr->threshold_exponent = CTL_LBP_EXPONENT; 9980 if (lun != NULL && lun->be_lun->flags & CTL_LUN_FLAG_UNMAP) { 9981 lbp_ptr->flags = SVPD_LBP_UNMAP | SVPD_LBP_WS16 | 9982 SVPD_LBP_WS10 | SVPD_LBP_RZ | SVPD_LBP_ANC_SUP; 9983 lbp_ptr->prov_type = SVPD_LBP_THIN; 9984 } 9985 9986 ctl_set_success(ctsio); 9987 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9988 ctsio->be_move_done = ctl_config_move_done; 9989 ctl_datamove((union ctl_io *)ctsio); 9990 return (CTL_RETVAL_COMPLETE); 9991} 9992 9993/* 9994 * INQUIRY with the EVPD bit set. 9995 */ 9996static int 9997ctl_inquiry_evpd(struct ctl_scsiio *ctsio) 9998{ 9999 struct ctl_lun *lun; 10000 struct scsi_inquiry *cdb; 10001 int alloc_len, retval; 10002 10003 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10004 cdb = (struct scsi_inquiry *)ctsio->cdb; 10005 alloc_len = scsi_2btoul(cdb->length); 10006 10007 switch (cdb->page_code) { 10008 case SVPD_SUPPORTED_PAGES: 10009 retval = ctl_inquiry_evpd_supported(ctsio, alloc_len); 10010 break; 10011 case SVPD_UNIT_SERIAL_NUMBER: 10012 retval = ctl_inquiry_evpd_serial(ctsio, alloc_len); 10013 break; 10014 case SVPD_DEVICE_ID: 10015 retval = ctl_inquiry_evpd_devid(ctsio, alloc_len); 10016 break; 10017 case SVPD_EXTENDED_INQUIRY_DATA: 10018 retval = ctl_inquiry_evpd_eid(ctsio, alloc_len); 10019 break; 10020 case SVPD_MODE_PAGE_POLICY: 10021 retval = ctl_inquiry_evpd_mpp(ctsio, alloc_len); 10022 break; 10023 case SVPD_SCSI_PORTS: 10024 retval = ctl_inquiry_evpd_scsi_ports(ctsio, alloc_len); 10025 break; 10026 case SVPD_SCSI_TPC: 10027 retval = ctl_inquiry_evpd_tpc(ctsio, alloc_len); 10028 break; 10029 case SVPD_BLOCK_LIMITS: 10030 if (lun == NULL || lun->be_lun->lun_type != T_DIRECT) 10031 goto err; 10032 retval = ctl_inquiry_evpd_block_limits(ctsio, alloc_len); 10033 break; 10034 case SVPD_BDC: 10035 if (lun == NULL || lun->be_lun->lun_type != T_DIRECT) 10036 goto err; 10037 retval = ctl_inquiry_evpd_bdc(ctsio, alloc_len); 10038 break; 10039 case SVPD_LBP: 10040 if (lun == NULL || lun->be_lun->lun_type != T_DIRECT) 10041 goto err; 10042 retval = ctl_inquiry_evpd_lbp(ctsio, alloc_len); 10043 break; 10044 default: 10045err: 10046 ctl_set_invalid_field(ctsio, 10047 /*sks_valid*/ 1, 10048 /*command*/ 1, 10049 /*field*/ 2, 10050 /*bit_valid*/ 0, 10051 /*bit*/ 0); 10052 ctl_done((union ctl_io *)ctsio); 10053 retval = CTL_RETVAL_COMPLETE; 10054 break; 10055 } 10056 10057 return (retval); 10058} 10059 10060/* 10061 * Standard INQUIRY data. 10062 */ 10063static int 10064ctl_inquiry_std(struct ctl_scsiio *ctsio) 10065{ 10066 struct scsi_inquiry_data *inq_ptr; 10067 struct scsi_inquiry *cdb; 10068 struct ctl_softc *softc = control_softc; 10069 struct ctl_port *port; 10070 struct ctl_lun *lun; 10071 char *val; 10072 uint32_t alloc_len, data_len; 10073 ctl_port_type port_type; 10074 10075 port = ctl_io_port(&ctsio->io_hdr); 10076 port_type = port->port_type; 10077 if (port_type == CTL_PORT_IOCTL || port_type == CTL_PORT_INTERNAL) 10078 port_type = CTL_PORT_SCSI; 10079 10080 lun = ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10081 cdb = (struct scsi_inquiry *)ctsio->cdb; 10082 alloc_len = scsi_2btoul(cdb->length); 10083 10084 /* 10085 * We malloc the full inquiry data size here and fill it 10086 * in. If the user only asks for less, we'll give him 10087 * that much. 10088 */ 10089 data_len = offsetof(struct scsi_inquiry_data, vendor_specific1); 10090 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 10091 inq_ptr = (struct scsi_inquiry_data *)ctsio->kern_data_ptr; 10092 ctsio->kern_sg_entries = 0; 10093 ctsio->kern_data_resid = 0; 10094 ctsio->kern_rel_offset = 0; 10095 10096 if (data_len < alloc_len) { 10097 ctsio->residual = alloc_len - data_len; 10098 ctsio->kern_data_len = data_len; 10099 ctsio->kern_total_len = data_len; 10100 } else { 10101 ctsio->residual = 0; 10102 ctsio->kern_data_len = alloc_len; 10103 ctsio->kern_total_len = alloc_len; 10104 } 10105 10106 if (lun != NULL) { 10107 if ((lun->flags & CTL_LUN_PRIMARY_SC) || 10108 softc->ha_link >= CTL_HA_LINK_UNKNOWN) { 10109 inq_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10110 lun->be_lun->lun_type; 10111 } else { 10112 inq_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | 10113 lun->be_lun->lun_type; 10114 } 10115 if (lun->flags & CTL_LUN_REMOVABLE) 10116 inq_ptr->dev_qual2 |= SID_RMB; 10117 } else 10118 inq_ptr->device = (SID_QUAL_BAD_LU << 5) | T_NODEVICE; 10119 10120 /* RMB in byte 2 is 0 */ 10121 inq_ptr->version = SCSI_REV_SPC4; 10122 10123 /* 10124 * According to SAM-3, even if a device only supports a single 10125 * level of LUN addressing, it should still set the HISUP bit: 10126 * 10127 * 4.9.1 Logical unit numbers overview 10128 * 10129 * All logical unit number formats described in this standard are 10130 * hierarchical in structure even when only a single level in that 10131 * hierarchy is used. The HISUP bit shall be set to one in the 10132 * standard INQUIRY data (see SPC-2) when any logical unit number 10133 * format described in this standard is used. Non-hierarchical 10134 * formats are outside the scope of this standard. 10135 * 10136 * Therefore we set the HiSup bit here. 10137 * 10138 * The reponse format is 2, per SPC-3. 10139 */ 10140 inq_ptr->response_format = SID_HiSup | 2; 10141 10142 inq_ptr->additional_length = data_len - 10143 (offsetof(struct scsi_inquiry_data, additional_length) + 1); 10144 CTL_DEBUG_PRINT(("additional_length = %d\n", 10145 inq_ptr->additional_length)); 10146 10147 inq_ptr->spc3_flags = SPC3_SID_3PC | SPC3_SID_TPGS_IMPLICIT; 10148 if (port_type == CTL_PORT_SCSI) 10149 inq_ptr->spc2_flags = SPC2_SID_ADDR16; 10150 inq_ptr->spc2_flags |= SPC2_SID_MultiP; 10151 inq_ptr->flags = SID_CmdQue; 10152 if (port_type == CTL_PORT_SCSI) 10153 inq_ptr->flags |= SID_WBus16 | SID_Sync; 10154 10155 /* 10156 * Per SPC-3, unused bytes in ASCII strings are filled with spaces. 10157 * We have 8 bytes for the vendor name, and 16 bytes for the device 10158 * name and 4 bytes for the revision. 10159 */ 10160 if (lun == NULL || (val = ctl_get_opt(&lun->be_lun->options, 10161 "vendor")) == NULL) { 10162 strncpy(inq_ptr->vendor, CTL_VENDOR, sizeof(inq_ptr->vendor)); 10163 } else { 10164 memset(inq_ptr->vendor, ' ', sizeof(inq_ptr->vendor)); 10165 strncpy(inq_ptr->vendor, val, 10166 min(sizeof(inq_ptr->vendor), strlen(val))); 10167 } 10168 if (lun == NULL) { 10169 strncpy(inq_ptr->product, CTL_DIRECT_PRODUCT, 10170 sizeof(inq_ptr->product)); 10171 } else if ((val = ctl_get_opt(&lun->be_lun->options, "product")) == NULL) { 10172 switch (lun->be_lun->lun_type) { 10173 case T_DIRECT: 10174 strncpy(inq_ptr->product, CTL_DIRECT_PRODUCT, 10175 sizeof(inq_ptr->product)); 10176 break; 10177 case T_PROCESSOR: 10178 strncpy(inq_ptr->product, CTL_PROCESSOR_PRODUCT, 10179 sizeof(inq_ptr->product)); 10180 break; 10181 case T_CDROM: 10182 strncpy(inq_ptr->product, CTL_CDROM_PRODUCT, 10183 sizeof(inq_ptr->product)); 10184 break; 10185 default: 10186 strncpy(inq_ptr->product, CTL_UNKNOWN_PRODUCT, 10187 sizeof(inq_ptr->product)); 10188 break; 10189 } 10190 } else { 10191 memset(inq_ptr->product, ' ', sizeof(inq_ptr->product)); 10192 strncpy(inq_ptr->product, val, 10193 min(sizeof(inq_ptr->product), strlen(val))); 10194 } 10195 10196 /* 10197 * XXX make this a macro somewhere so it automatically gets 10198 * incremented when we make changes. 10199 */ 10200 if (lun == NULL || (val = ctl_get_opt(&lun->be_lun->options, 10201 "revision")) == NULL) { 10202 strncpy(inq_ptr->revision, "0001", sizeof(inq_ptr->revision)); 10203 } else { 10204 memset(inq_ptr->revision, ' ', sizeof(inq_ptr->revision)); 10205 strncpy(inq_ptr->revision, val, 10206 min(sizeof(inq_ptr->revision), strlen(val))); 10207 } 10208 10209 /* 10210 * For parallel SCSI, we support double transition and single 10211 * transition clocking. We also support QAS (Quick Arbitration 10212 * and Selection) and Information Unit transfers on both the 10213 * control and array devices. 10214 */ 10215 if (port_type == CTL_PORT_SCSI) 10216 inq_ptr->spi3data = SID_SPI_CLOCK_DT_ST | SID_SPI_QAS | 10217 SID_SPI_IUS; 10218 10219 /* SAM-5 (no version claimed) */ 10220 scsi_ulto2b(0x00A0, inq_ptr->version1); 10221 /* SPC-4 (no version claimed) */ 10222 scsi_ulto2b(0x0460, inq_ptr->version2); 10223 if (port_type == CTL_PORT_FC) { 10224 /* FCP-2 ANSI INCITS.350:2003 */ 10225 scsi_ulto2b(0x0917, inq_ptr->version3); 10226 } else if (port_type == CTL_PORT_SCSI) { 10227 /* SPI-4 ANSI INCITS.362:200x */ 10228 scsi_ulto2b(0x0B56, inq_ptr->version3); 10229 } else if (port_type == CTL_PORT_ISCSI) { 10230 /* iSCSI (no version claimed) */ 10231 scsi_ulto2b(0x0960, inq_ptr->version3); 10232 } else if (port_type == CTL_PORT_SAS) { 10233 /* SAS (no version claimed) */ 10234 scsi_ulto2b(0x0BE0, inq_ptr->version3); 10235 } 10236 10237 if (lun == NULL) { 10238 /* SBC-4 (no version claimed) */ 10239 scsi_ulto2b(0x0600, inq_ptr->version4); 10240 } else { 10241 switch (lun->be_lun->lun_type) { 10242 case T_DIRECT: 10243 /* SBC-4 (no version claimed) */ 10244 scsi_ulto2b(0x0600, inq_ptr->version4); 10245 break; 10246 case T_PROCESSOR: 10247 break; 10248 case T_CDROM: 10249 /* MMC-6 (no version claimed) */ 10250 scsi_ulto2b(0x04E0, inq_ptr->version4); 10251 break; 10252 default: 10253 break; 10254 } 10255 } 10256 10257 ctl_set_success(ctsio); 10258 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10259 ctsio->be_move_done = ctl_config_move_done; 10260 ctl_datamove((union ctl_io *)ctsio); 10261 return (CTL_RETVAL_COMPLETE); 10262} 10263 10264int 10265ctl_inquiry(struct ctl_scsiio *ctsio) 10266{ 10267 struct scsi_inquiry *cdb; 10268 int retval; 10269 10270 CTL_DEBUG_PRINT(("ctl_inquiry\n")); 10271 10272 cdb = (struct scsi_inquiry *)ctsio->cdb; 10273 if (cdb->byte2 & SI_EVPD) 10274 retval = ctl_inquiry_evpd(ctsio); 10275 else if (cdb->page_code == 0) 10276 retval = ctl_inquiry_std(ctsio); 10277 else { 10278 ctl_set_invalid_field(ctsio, 10279 /*sks_valid*/ 1, 10280 /*command*/ 1, 10281 /*field*/ 2, 10282 /*bit_valid*/ 0, 10283 /*bit*/ 0); 10284 ctl_done((union ctl_io *)ctsio); 10285 return (CTL_RETVAL_COMPLETE); 10286 } 10287 10288 return (retval); 10289} 10290 10291int 10292ctl_get_config(struct ctl_scsiio *ctsio) 10293{ 10294 struct scsi_get_config_header *hdr; 10295 struct scsi_get_config_feature *feature; 10296 struct scsi_get_config *cdb; 10297 struct ctl_lun *lun; 10298 uint32_t alloc_len, data_len; 10299 int rt, starting; 10300 10301 lun = ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10302 cdb = (struct scsi_get_config *)ctsio->cdb; 10303 rt = (cdb->rt & SGC_RT_MASK); 10304 starting = scsi_2btoul(cdb->starting_feature); 10305 alloc_len = scsi_2btoul(cdb->length); 10306 10307 data_len = sizeof(struct scsi_get_config_header) + 10308 sizeof(struct scsi_get_config_feature) + 8 + 10309 sizeof(struct scsi_get_config_feature) + 8 + 10310 sizeof(struct scsi_get_config_feature) + 4 + 10311 sizeof(struct scsi_get_config_feature) + 4 + 10312 sizeof(struct scsi_get_config_feature) + 8 + 10313 sizeof(struct scsi_get_config_feature) + 10314 sizeof(struct scsi_get_config_feature) + 4 + 10315 sizeof(struct scsi_get_config_feature) + 4 + 10316 sizeof(struct scsi_get_config_feature) + 4 + 10317 sizeof(struct scsi_get_config_feature) + 4 + 10318 sizeof(struct scsi_get_config_feature) + 4 + 10319 sizeof(struct scsi_get_config_feature) + 4; 10320 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 10321 ctsio->kern_sg_entries = 0; 10322 ctsio->kern_data_resid = 0; 10323 ctsio->kern_rel_offset = 0; 10324 10325 hdr = (struct scsi_get_config_header *)ctsio->kern_data_ptr; 10326 if (lun->flags & CTL_LUN_NO_MEDIA) 10327 scsi_ulto2b(0x0000, hdr->current_profile); 10328 else 10329 scsi_ulto2b(0x0010, hdr->current_profile); 10330 feature = (struct scsi_get_config_feature *)(hdr + 1); 10331 10332 if (starting > 0x003b) 10333 goto done; 10334 if (starting > 0x003a) 10335 goto f3b; 10336 if (starting > 0x002b) 10337 goto f3a; 10338 if (starting > 0x002a) 10339 goto f2b; 10340 if (starting > 0x001f) 10341 goto f2a; 10342 if (starting > 0x001e) 10343 goto f1f; 10344 if (starting > 0x001d) 10345 goto f1e; 10346 if (starting > 0x0010) 10347 goto f1d; 10348 if (starting > 0x0003) 10349 goto f10; 10350 if (starting > 0x0002) 10351 goto f3; 10352 if (starting > 0x0001) 10353 goto f2; 10354 if (starting > 0x0000) 10355 goto f1; 10356 10357 /* Profile List */ 10358 scsi_ulto2b(0x0000, feature->feature_code); 10359 feature->flags = SGC_F_PERSISTENT | SGC_F_CURRENT; 10360 feature->add_length = 8; 10361 scsi_ulto2b(0x0008, &feature->feature_data[0]); /* CD-ROM */ 10362 feature->feature_data[2] = 0x00; 10363 scsi_ulto2b(0x0010, &feature->feature_data[4]); /* DVD-ROM */ 10364 feature->feature_data[6] = 0x01; 10365 feature = (struct scsi_get_config_feature *) 10366 &feature->feature_data[feature->add_length]; 10367 10368f1: /* Core */ 10369 scsi_ulto2b(0x0001, feature->feature_code); 10370 feature->flags = 0x08 | SGC_F_PERSISTENT | SGC_F_CURRENT; 10371 feature->add_length = 8; 10372 scsi_ulto4b(0x00000000, &feature->feature_data[0]); 10373 feature->feature_data[4] = 0x03; 10374 feature = (struct scsi_get_config_feature *) 10375 &feature->feature_data[feature->add_length]; 10376 10377f2: /* Morphing */ 10378 scsi_ulto2b(0x0002, feature->feature_code); 10379 feature->flags = 0x04 | SGC_F_PERSISTENT | SGC_F_CURRENT; 10380 feature->add_length = 4; 10381 feature->feature_data[0] = 0x02; 10382 feature = (struct scsi_get_config_feature *) 10383 &feature->feature_data[feature->add_length]; 10384 10385f3: /* Removable Medium */ 10386 scsi_ulto2b(0x0003, feature->feature_code); 10387 feature->flags = 0x04 | SGC_F_PERSISTENT | SGC_F_CURRENT; 10388 feature->add_length = 4; 10389 feature->feature_data[0] = 0x39; 10390 feature = (struct scsi_get_config_feature *) 10391 &feature->feature_data[feature->add_length]; 10392 10393 if (rt == SGC_RT_CURRENT && (lun->flags & CTL_LUN_NO_MEDIA)) 10394 goto done; 10395 10396f10: /* Random Read */ 10397 scsi_ulto2b(0x0010, feature->feature_code); 10398 feature->flags = 0x00; 10399 if ((lun->flags & CTL_LUN_NO_MEDIA) == 0) 10400 feature->flags |= SGC_F_CURRENT; 10401 feature->add_length = 8; 10402 scsi_ulto4b(lun->be_lun->blocksize, &feature->feature_data[0]); 10403 scsi_ulto2b(1, &feature->feature_data[4]); 10404 feature->feature_data[6] = 0x00; 10405 feature = (struct scsi_get_config_feature *) 10406 &feature->feature_data[feature->add_length]; 10407 10408f1d: /* Multi-Read */ 10409 scsi_ulto2b(0x001D, feature->feature_code); 10410 feature->flags = 0x00; 10411 if ((lun->flags & CTL_LUN_NO_MEDIA) == 0) 10412 feature->flags |= SGC_F_CURRENT; 10413 feature->add_length = 0; 10414 feature = (struct scsi_get_config_feature *) 10415 &feature->feature_data[feature->add_length]; 10416 10417f1e: /* CD Read */ 10418 scsi_ulto2b(0x001E, feature->feature_code); 10419 feature->flags = 0x00; 10420 if ((lun->flags & CTL_LUN_NO_MEDIA) == 0) 10421 feature->flags |= SGC_F_CURRENT; 10422 feature->add_length = 4; 10423 feature->feature_data[0] = 0x00; 10424 feature = (struct scsi_get_config_feature *) 10425 &feature->feature_data[feature->add_length]; 10426 10427f1f: /* DVD Read */ 10428 scsi_ulto2b(0x001F, feature->feature_code); 10429 feature->flags = 0x08; 10430 if ((lun->flags & CTL_LUN_NO_MEDIA) == 0) 10431 feature->flags |= SGC_F_CURRENT; 10432 feature->add_length = 4; 10433 feature->feature_data[0] = 0x01; 10434 feature->feature_data[2] = 0x03; 10435 feature = (struct scsi_get_config_feature *) 10436 &feature->feature_data[feature->add_length]; 10437 10438f2a: /* DVD+RW */ 10439 scsi_ulto2b(0x002A, feature->feature_code); 10440 feature->flags = 0x04; 10441 if ((lun->flags & CTL_LUN_NO_MEDIA) == 0) 10442 feature->flags |= SGC_F_CURRENT; 10443 feature->add_length = 4; 10444 feature->feature_data[0] = 0x00; 10445 feature->feature_data[1] = 0x00; 10446 feature = (struct scsi_get_config_feature *) 10447 &feature->feature_data[feature->add_length]; 10448 10449f2b: /* DVD+R */ 10450 scsi_ulto2b(0x002B, feature->feature_code); 10451 feature->flags = 0x00; 10452 if ((lun->flags & CTL_LUN_NO_MEDIA) == 0) 10453 feature->flags |= SGC_F_CURRENT; 10454 feature->add_length = 4; 10455 feature->feature_data[0] = 0x00; 10456 feature = (struct scsi_get_config_feature *) 10457 &feature->feature_data[feature->add_length]; 10458 10459f3a: /* DVD+RW Dual Layer */ 10460 scsi_ulto2b(0x003A, feature->feature_code); 10461 feature->flags = 0x00; 10462 if ((lun->flags & CTL_LUN_NO_MEDIA) == 0) 10463 feature->flags |= SGC_F_CURRENT; 10464 feature->add_length = 4; 10465 feature->feature_data[0] = 0x00; 10466 feature->feature_data[1] = 0x00; 10467 feature = (struct scsi_get_config_feature *) 10468 &feature->feature_data[feature->add_length]; 10469 10470f3b: /* DVD+R Dual Layer */ 10471 scsi_ulto2b(0x003B, feature->feature_code); 10472 feature->flags = 0x00; 10473 if ((lun->flags & CTL_LUN_NO_MEDIA) == 0) 10474 feature->flags |= SGC_F_CURRENT; 10475 feature->add_length = 4; 10476 feature->feature_data[0] = 0x00; 10477 feature = (struct scsi_get_config_feature *) 10478 &feature->feature_data[feature->add_length]; 10479 10480done: 10481 data_len = (uint8_t *)feature - (uint8_t *)hdr; 10482 if (rt == SGC_RT_SPECIFIC && data_len > 4) { 10483 feature = (struct scsi_get_config_feature *)(hdr + 1); 10484 if (scsi_2btoul(feature->feature_code) == starting) 10485 feature = (struct scsi_get_config_feature *) 10486 &feature->feature_data[feature->add_length]; 10487 data_len = (uint8_t *)feature - (uint8_t *)hdr; 10488 } 10489 scsi_ulto4b(data_len - 4, hdr->data_length); 10490 if (data_len < alloc_len) { 10491 ctsio->residual = alloc_len - data_len; 10492 ctsio->kern_data_len = data_len; 10493 ctsio->kern_total_len = data_len; 10494 } else { 10495 ctsio->residual = 0; 10496 ctsio->kern_data_len = alloc_len; 10497 ctsio->kern_total_len = alloc_len; 10498 } 10499 10500 ctl_set_success(ctsio); 10501 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10502 ctsio->be_move_done = ctl_config_move_done; 10503 ctl_datamove((union ctl_io *)ctsio); 10504 return (CTL_RETVAL_COMPLETE); 10505} 10506 10507int 10508ctl_get_event_status(struct ctl_scsiio *ctsio) 10509{ 10510 struct scsi_get_event_status_header *hdr; 10511 struct scsi_get_event_status *cdb; 10512 struct ctl_lun *lun; 10513 uint32_t alloc_len, data_len; 10514 int notif_class; 10515 10516 lun = ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10517 cdb = (struct scsi_get_event_status *)ctsio->cdb; 10518 if ((cdb->byte2 & SGESN_POLLED) == 0) { 10519 ctl_set_invalid_field(ctsio, /*sks_valid*/ 1, /*command*/ 1, 10520 /*field*/ 1, /*bit_valid*/ 1, /*bit*/ 0); 10521 ctl_done((union ctl_io *)ctsio); 10522 return (CTL_RETVAL_COMPLETE); 10523 } 10524 notif_class = cdb->notif_class; 10525 alloc_len = scsi_2btoul(cdb->length); 10526 10527 data_len = sizeof(struct scsi_get_event_status_header); 10528 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 10529 ctsio->kern_sg_entries = 0; 10530 ctsio->kern_data_resid = 0; 10531 ctsio->kern_rel_offset = 0; 10532 10533 if (data_len < alloc_len) { 10534 ctsio->residual = alloc_len - data_len; 10535 ctsio->kern_data_len = data_len; 10536 ctsio->kern_total_len = data_len; 10537 } else { 10538 ctsio->residual = 0; 10539 ctsio->kern_data_len = alloc_len; 10540 ctsio->kern_total_len = alloc_len; 10541 } 10542 10543 hdr = (struct scsi_get_event_status_header *)ctsio->kern_data_ptr; 10544 scsi_ulto2b(0, hdr->descr_length); 10545 hdr->nea_class = SGESN_NEA; 10546 hdr->supported_class = 0; 10547 10548 ctl_set_success(ctsio); 10549 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10550 ctsio->be_move_done = ctl_config_move_done; 10551 ctl_datamove((union ctl_io *)ctsio); 10552 return (CTL_RETVAL_COMPLETE); 10553} 10554 10555int 10556ctl_mechanism_status(struct ctl_scsiio *ctsio) 10557{ 10558 struct scsi_mechanism_status_header *hdr; 10559 struct scsi_mechanism_status *cdb; 10560 struct ctl_lun *lun; 10561 uint32_t alloc_len, data_len; 10562 10563 lun = ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10564 cdb = (struct scsi_mechanism_status *)ctsio->cdb; 10565 alloc_len = scsi_2btoul(cdb->length); 10566 10567 data_len = sizeof(struct scsi_mechanism_status_header); 10568 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 10569 ctsio->kern_sg_entries = 0; 10570 ctsio->kern_data_resid = 0; 10571 ctsio->kern_rel_offset = 0; 10572 10573 if (data_len < alloc_len) { 10574 ctsio->residual = alloc_len - data_len; 10575 ctsio->kern_data_len = data_len; 10576 ctsio->kern_total_len = data_len; 10577 } else { 10578 ctsio->residual = 0; 10579 ctsio->kern_data_len = alloc_len; 10580 ctsio->kern_total_len = alloc_len; 10581 } 10582 10583 hdr = (struct scsi_mechanism_status_header *)ctsio->kern_data_ptr; 10584 hdr->state1 = 0x00; 10585 hdr->state2 = 0xe0; 10586 scsi_ulto3b(0, hdr->lba); 10587 hdr->slots_num = 0; 10588 scsi_ulto2b(0, hdr->slots_length); 10589 10590 ctl_set_success(ctsio); 10591 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10592 ctsio->be_move_done = ctl_config_move_done; 10593 ctl_datamove((union ctl_io *)ctsio); 10594 return (CTL_RETVAL_COMPLETE); 10595} 10596 10597static void 10598ctl_ultomsf(uint32_t lba, uint8_t *buf) 10599{ 10600 10601 lba += 150; 10602 buf[0] = 0; 10603 buf[1] = bin2bcd((lba / 75) / 60); 10604 buf[2] = bin2bcd((lba / 75) % 60); 10605 buf[3] = bin2bcd(lba % 75); 10606} 10607 10608int 10609ctl_read_toc(struct ctl_scsiio *ctsio) 10610{ 10611 struct scsi_read_toc_hdr *hdr; 10612 struct scsi_read_toc_type01_descr *descr; 10613 struct scsi_read_toc *cdb; 10614 struct ctl_lun *lun; 10615 uint32_t alloc_len, data_len; 10616 int format, msf; 10617 10618 lun = ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10619 cdb = (struct scsi_read_toc *)ctsio->cdb; 10620 msf = (cdb->byte2 & CD_MSF) != 0; 10621 format = cdb->format; 10622 alloc_len = scsi_2btoul(cdb->data_len); 10623 10624 data_len = sizeof(struct scsi_read_toc_hdr); 10625 if (format == 0) 10626 data_len += 2 * sizeof(struct scsi_read_toc_type01_descr); 10627 else 10628 data_len += sizeof(struct scsi_read_toc_type01_descr); 10629 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 10630 ctsio->kern_sg_entries = 0; 10631 ctsio->kern_data_resid = 0; 10632 ctsio->kern_rel_offset = 0; 10633 10634 if (data_len < alloc_len) { 10635 ctsio->residual = alloc_len - data_len; 10636 ctsio->kern_data_len = data_len; 10637 ctsio->kern_total_len = data_len; 10638 } else { 10639 ctsio->residual = 0; 10640 ctsio->kern_data_len = alloc_len; 10641 ctsio->kern_total_len = alloc_len; 10642 } 10643 10644 hdr = (struct scsi_read_toc_hdr *)ctsio->kern_data_ptr; 10645 if (format == 0) { 10646 scsi_ulto2b(0x12, hdr->data_length); 10647 hdr->first = 1; 10648 hdr->last = 1; 10649 descr = (struct scsi_read_toc_type01_descr *)(hdr + 1); 10650 descr->addr_ctl = 0x14; 10651 descr->track_number = 1; 10652 if (msf) 10653 ctl_ultomsf(0, descr->track_start); 10654 else 10655 scsi_ulto4b(0, descr->track_start); 10656 descr++; 10657 descr->addr_ctl = 0x14; 10658 descr->track_number = 0xaa; 10659 if (msf) 10660 ctl_ultomsf(lun->be_lun->maxlba+1, descr->track_start); 10661 else 10662 scsi_ulto4b(lun->be_lun->maxlba+1, descr->track_start); 10663 } else { 10664 scsi_ulto2b(0x0a, hdr->data_length); 10665 hdr->first = 1; 10666 hdr->last = 1; 10667 descr = (struct scsi_read_toc_type01_descr *)(hdr + 1); 10668 descr->addr_ctl = 0x14; 10669 descr->track_number = 1; 10670 if (msf) 10671 ctl_ultomsf(0, descr->track_start); 10672 else 10673 scsi_ulto4b(0, descr->track_start); 10674 } 10675 10676 ctl_set_success(ctsio); 10677 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10678 ctsio->be_move_done = ctl_config_move_done; 10679 ctl_datamove((union ctl_io *)ctsio); 10680 return (CTL_RETVAL_COMPLETE); 10681} 10682 10683/* 10684 * For known CDB types, parse the LBA and length. 10685 */ 10686static int 10687ctl_get_lba_len(union ctl_io *io, uint64_t *lba, uint64_t *len) 10688{ 10689 if (io->io_hdr.io_type != CTL_IO_SCSI) 10690 return (1); 10691 10692 switch (io->scsiio.cdb[0]) { 10693 case COMPARE_AND_WRITE: { 10694 struct scsi_compare_and_write *cdb; 10695 10696 cdb = (struct scsi_compare_and_write *)io->scsiio.cdb; 10697 10698 *lba = scsi_8btou64(cdb->addr); 10699 *len = cdb->length; 10700 break; 10701 } 10702 case READ_6: 10703 case WRITE_6: { 10704 struct scsi_rw_6 *cdb; 10705 10706 cdb = (struct scsi_rw_6 *)io->scsiio.cdb; 10707 10708 *lba = scsi_3btoul(cdb->addr); 10709 /* only 5 bits are valid in the most significant address byte */ 10710 *lba &= 0x1fffff; 10711 *len = cdb->length; 10712 break; 10713 } 10714 case READ_10: 10715 case WRITE_10: { 10716 struct scsi_rw_10 *cdb; 10717 10718 cdb = (struct scsi_rw_10 *)io->scsiio.cdb; 10719 10720 *lba = scsi_4btoul(cdb->addr); 10721 *len = scsi_2btoul(cdb->length); 10722 break; 10723 } 10724 case WRITE_VERIFY_10: { 10725 struct scsi_write_verify_10 *cdb; 10726 10727 cdb = (struct scsi_write_verify_10 *)io->scsiio.cdb; 10728 10729 *lba = scsi_4btoul(cdb->addr); 10730 *len = scsi_2btoul(cdb->length); 10731 break; 10732 } 10733 case READ_12: 10734 case WRITE_12: { 10735 struct scsi_rw_12 *cdb; 10736 10737 cdb = (struct scsi_rw_12 *)io->scsiio.cdb; 10738 10739 *lba = scsi_4btoul(cdb->addr); 10740 *len = scsi_4btoul(cdb->length); 10741 break; 10742 } 10743 case WRITE_VERIFY_12: { 10744 struct scsi_write_verify_12 *cdb; 10745 10746 cdb = (struct scsi_write_verify_12 *)io->scsiio.cdb; 10747 10748 *lba = scsi_4btoul(cdb->addr); 10749 *len = scsi_4btoul(cdb->length); 10750 break; 10751 } 10752 case READ_16: 10753 case WRITE_16: { 10754 struct scsi_rw_16 *cdb; 10755 10756 cdb = (struct scsi_rw_16 *)io->scsiio.cdb; 10757 10758 *lba = scsi_8btou64(cdb->addr); 10759 *len = scsi_4btoul(cdb->length); 10760 break; 10761 } 10762 case WRITE_ATOMIC_16: { 10763 struct scsi_write_atomic_16 *cdb; 10764 10765 cdb = (struct scsi_write_atomic_16 *)io->scsiio.cdb; 10766 10767 *lba = scsi_8btou64(cdb->addr); 10768 *len = scsi_2btoul(cdb->length); 10769 break; 10770 } 10771 case WRITE_VERIFY_16: { 10772 struct scsi_write_verify_16 *cdb; 10773 10774 cdb = (struct scsi_write_verify_16 *)io->scsiio.cdb; 10775 10776 *lba = scsi_8btou64(cdb->addr); 10777 *len = scsi_4btoul(cdb->length); 10778 break; 10779 } 10780 case WRITE_SAME_10: { 10781 struct scsi_write_same_10 *cdb; 10782 10783 cdb = (struct scsi_write_same_10 *)io->scsiio.cdb; 10784 10785 *lba = scsi_4btoul(cdb->addr); 10786 *len = scsi_2btoul(cdb->length); 10787 break; 10788 } 10789 case WRITE_SAME_16: { 10790 struct scsi_write_same_16 *cdb; 10791 10792 cdb = (struct scsi_write_same_16 *)io->scsiio.cdb; 10793 10794 *lba = scsi_8btou64(cdb->addr); 10795 *len = scsi_4btoul(cdb->length); 10796 break; 10797 } 10798 case VERIFY_10: { 10799 struct scsi_verify_10 *cdb; 10800 10801 cdb = (struct scsi_verify_10 *)io->scsiio.cdb; 10802 10803 *lba = scsi_4btoul(cdb->addr); 10804 *len = scsi_2btoul(cdb->length); 10805 break; 10806 } 10807 case VERIFY_12: { 10808 struct scsi_verify_12 *cdb; 10809 10810 cdb = (struct scsi_verify_12 *)io->scsiio.cdb; 10811 10812 *lba = scsi_4btoul(cdb->addr); 10813 *len = scsi_4btoul(cdb->length); 10814 break; 10815 } 10816 case VERIFY_16: { 10817 struct scsi_verify_16 *cdb; 10818 10819 cdb = (struct scsi_verify_16 *)io->scsiio.cdb; 10820 10821 *lba = scsi_8btou64(cdb->addr); 10822 *len = scsi_4btoul(cdb->length); 10823 break; 10824 } 10825 case UNMAP: { 10826 *lba = 0; 10827 *len = UINT64_MAX; 10828 break; 10829 } 10830 case SERVICE_ACTION_IN: { /* GET LBA STATUS */ 10831 struct scsi_get_lba_status *cdb; 10832 10833 cdb = (struct scsi_get_lba_status *)io->scsiio.cdb; 10834 *lba = scsi_8btou64(cdb->addr); 10835 *len = UINT32_MAX; 10836 break; 10837 } 10838 default: 10839 return (1); 10840 break; /* NOTREACHED */ 10841 } 10842 10843 return (0); 10844} 10845 10846static ctl_action 10847ctl_extent_check_lba(uint64_t lba1, uint64_t len1, uint64_t lba2, uint64_t len2, 10848 bool seq) 10849{ 10850 uint64_t endlba1, endlba2; 10851 10852 endlba1 = lba1 + len1 - (seq ? 0 : 1); 10853 endlba2 = lba2 + len2 - 1; 10854 10855 if ((endlba1 < lba2) || (endlba2 < lba1)) 10856 return (CTL_ACTION_PASS); 10857 else 10858 return (CTL_ACTION_BLOCK); 10859} 10860 10861static int 10862ctl_extent_check_unmap(union ctl_io *io, uint64_t lba2, uint64_t len2) 10863{ 10864 struct ctl_ptr_len_flags *ptrlen; 10865 struct scsi_unmap_desc *buf, *end, *range; 10866 uint64_t lba; 10867 uint32_t len; 10868 10869 /* If not UNMAP -- go other way. */ 10870 if (io->io_hdr.io_type != CTL_IO_SCSI || 10871 io->scsiio.cdb[0] != UNMAP) 10872 return (CTL_ACTION_ERROR); 10873 10874 /* If UNMAP without data -- block and wait for data. */ 10875 ptrlen = (struct ctl_ptr_len_flags *) 10876 &io->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 10877 if ((io->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0 || 10878 ptrlen->ptr == NULL) 10879 return (CTL_ACTION_BLOCK); 10880 10881 /* UNMAP with data -- check for collision. */ 10882 buf = (struct scsi_unmap_desc *)ptrlen->ptr; 10883 end = buf + ptrlen->len / sizeof(*buf); 10884 for (range = buf; range < end; range++) { 10885 lba = scsi_8btou64(range->lba); 10886 len = scsi_4btoul(range->length); 10887 if ((lba < lba2 + len2) && (lba + len > lba2)) 10888 return (CTL_ACTION_BLOCK); 10889 } 10890 return (CTL_ACTION_PASS); 10891} 10892 10893static ctl_action 10894ctl_extent_check(union ctl_io *io1, union ctl_io *io2, bool seq) 10895{ 10896 uint64_t lba1, lba2; 10897 uint64_t len1, len2; 10898 int retval; 10899 10900 if (ctl_get_lba_len(io2, &lba2, &len2) != 0) 10901 return (CTL_ACTION_ERROR); 10902 10903 retval = ctl_extent_check_unmap(io1, lba2, len2); 10904 if (retval != CTL_ACTION_ERROR) 10905 return (retval); 10906 10907 if (ctl_get_lba_len(io1, &lba1, &len1) != 0) 10908 return (CTL_ACTION_ERROR); 10909 10910 if (io1->io_hdr.flags & CTL_FLAG_SERSEQ_DONE) 10911 seq = FALSE; 10912 return (ctl_extent_check_lba(lba1, len1, lba2, len2, seq)); 10913} 10914 10915static ctl_action 10916ctl_extent_check_seq(union ctl_io *io1, union ctl_io *io2) 10917{ 10918 uint64_t lba1, lba2; 10919 uint64_t len1, len2; 10920 10921 if (io1->io_hdr.flags & CTL_FLAG_SERSEQ_DONE) 10922 return (CTL_ACTION_PASS); 10923 if (ctl_get_lba_len(io1, &lba1, &len1) != 0) 10924 return (CTL_ACTION_ERROR); 10925 if (ctl_get_lba_len(io2, &lba2, &len2) != 0) 10926 return (CTL_ACTION_ERROR); 10927 10928 if (lba1 + len1 == lba2) 10929 return (CTL_ACTION_BLOCK); 10930 return (CTL_ACTION_PASS); 10931} 10932 10933static ctl_action 10934ctl_check_for_blockage(struct ctl_lun *lun, union ctl_io *pending_io, 10935 union ctl_io *ooa_io) 10936{ 10937 const struct ctl_cmd_entry *pending_entry, *ooa_entry; 10938 const ctl_serialize_action *serialize_row; 10939 10940 /* 10941 * The initiator attempted multiple untagged commands at the same 10942 * time. Can't do that. 10943 */ 10944 if ((pending_io->scsiio.tag_type == CTL_TAG_UNTAGGED) 10945 && (ooa_io->scsiio.tag_type == CTL_TAG_UNTAGGED) 10946 && ((pending_io->io_hdr.nexus.targ_port == 10947 ooa_io->io_hdr.nexus.targ_port) 10948 && (pending_io->io_hdr.nexus.initid == 10949 ooa_io->io_hdr.nexus.initid)) 10950 && ((ooa_io->io_hdr.flags & (CTL_FLAG_ABORT | 10951 CTL_FLAG_STATUS_SENT)) == 0)) 10952 return (CTL_ACTION_OVERLAP); 10953 10954 /* 10955 * The initiator attempted to send multiple tagged commands with 10956 * the same ID. (It's fine if different initiators have the same 10957 * tag ID.) 10958 * 10959 * Even if all of those conditions are true, we don't kill the I/O 10960 * if the command ahead of us has been aborted. We won't end up 10961 * sending it to the FETD, and it's perfectly legal to resend a 10962 * command with the same tag number as long as the previous 10963 * instance of this tag number has been aborted somehow. 10964 */ 10965 if ((pending_io->scsiio.tag_type != CTL_TAG_UNTAGGED) 10966 && (ooa_io->scsiio.tag_type != CTL_TAG_UNTAGGED) 10967 && (pending_io->scsiio.tag_num == ooa_io->scsiio.tag_num) 10968 && ((pending_io->io_hdr.nexus.targ_port == 10969 ooa_io->io_hdr.nexus.targ_port) 10970 && (pending_io->io_hdr.nexus.initid == 10971 ooa_io->io_hdr.nexus.initid)) 10972 && ((ooa_io->io_hdr.flags & (CTL_FLAG_ABORT | 10973 CTL_FLAG_STATUS_SENT)) == 0)) 10974 return (CTL_ACTION_OVERLAP_TAG); 10975 10976 /* 10977 * If we get a head of queue tag, SAM-3 says that we should 10978 * immediately execute it. 10979 * 10980 * What happens if this command would normally block for some other 10981 * reason? e.g. a request sense with a head of queue tag 10982 * immediately after a write. Normally that would block, but this 10983 * will result in its getting executed immediately... 10984 * 10985 * We currently return "pass" instead of "skip", so we'll end up 10986 * going through the rest of the queue to check for overlapped tags. 10987 * 10988 * XXX KDM check for other types of blockage first?? 10989 */ 10990 if (pending_io->scsiio.tag_type == CTL_TAG_HEAD_OF_QUEUE) 10991 return (CTL_ACTION_PASS); 10992 10993 /* 10994 * Ordered tags have to block until all items ahead of them 10995 * have completed. If we get called with an ordered tag, we always 10996 * block, if something else is ahead of us in the queue. 10997 */ 10998 if (pending_io->scsiio.tag_type == CTL_TAG_ORDERED) 10999 return (CTL_ACTION_BLOCK); 11000 11001 /* 11002 * Simple tags get blocked until all head of queue and ordered tags 11003 * ahead of them have completed. I'm lumping untagged commands in 11004 * with simple tags here. XXX KDM is that the right thing to do? 11005 */ 11006 if (((pending_io->scsiio.tag_type == CTL_TAG_UNTAGGED) 11007 || (pending_io->scsiio.tag_type == CTL_TAG_SIMPLE)) 11008 && ((ooa_io->scsiio.tag_type == CTL_TAG_HEAD_OF_QUEUE) 11009 || (ooa_io->scsiio.tag_type == CTL_TAG_ORDERED))) 11010 return (CTL_ACTION_BLOCK); 11011 11012 pending_entry = ctl_get_cmd_entry(&pending_io->scsiio, NULL); 11013 ooa_entry = ctl_get_cmd_entry(&ooa_io->scsiio, NULL); 11014 11015 serialize_row = ctl_serialize_table[ooa_entry->seridx]; 11016 11017 switch (serialize_row[pending_entry->seridx]) { 11018 case CTL_SER_BLOCK: 11019 return (CTL_ACTION_BLOCK); 11020 case CTL_SER_EXTENT: 11021 return (ctl_extent_check(ooa_io, pending_io, 11022 (lun->be_lun && lun->be_lun->serseq == CTL_LUN_SERSEQ_ON))); 11023 case CTL_SER_EXTENTOPT: 11024 if ((lun->mode_pages.control_page[CTL_PAGE_CURRENT].queue_flags 11025 & SCP_QUEUE_ALG_MASK) != SCP_QUEUE_ALG_UNRESTRICTED) 11026 return (ctl_extent_check(ooa_io, pending_io, 11027 (lun->be_lun && 11028 lun->be_lun->serseq == CTL_LUN_SERSEQ_ON))); 11029 return (CTL_ACTION_PASS); 11030 case CTL_SER_EXTENTSEQ: 11031 if (lun->be_lun && lun->be_lun->serseq != CTL_LUN_SERSEQ_OFF) 11032 return (ctl_extent_check_seq(ooa_io, pending_io)); 11033 return (CTL_ACTION_PASS); 11034 case CTL_SER_PASS: 11035 return (CTL_ACTION_PASS); 11036 case CTL_SER_BLOCKOPT: 11037 if ((lun->mode_pages.control_page[CTL_PAGE_CURRENT].queue_flags 11038 & SCP_QUEUE_ALG_MASK) != SCP_QUEUE_ALG_UNRESTRICTED) 11039 return (CTL_ACTION_BLOCK); 11040 return (CTL_ACTION_PASS); 11041 case CTL_SER_SKIP: 11042 return (CTL_ACTION_SKIP); 11043 default: 11044 panic("%s: Invalid serialization value %d for %d => %d", 11045 __func__, serialize_row[pending_entry->seridx], 11046 pending_entry->seridx, ooa_entry->seridx); 11047 } 11048 11049 return (CTL_ACTION_ERROR); 11050} 11051 11052/* 11053 * Check for blockage or overlaps against the OOA (Order Of Arrival) queue. 11054 * Assumptions: 11055 * - pending_io is generally either incoming, or on the blocked queue 11056 * - starting I/O is the I/O we want to start the check with. 11057 */ 11058static ctl_action 11059ctl_check_ooa(struct ctl_lun *lun, union ctl_io *pending_io, 11060 union ctl_io *starting_io) 11061{ 11062 union ctl_io *ooa_io; 11063 ctl_action action; 11064 11065 mtx_assert(&lun->lun_lock, MA_OWNED); 11066 11067 /* 11068 * Run back along the OOA queue, starting with the current 11069 * blocked I/O and going through every I/O before it on the 11070 * queue. If starting_io is NULL, we'll just end up returning 11071 * CTL_ACTION_PASS. 11072 */ 11073 for (ooa_io = starting_io; ooa_io != NULL; 11074 ooa_io = (union ctl_io *)TAILQ_PREV(&ooa_io->io_hdr, ctl_ooaq, 11075 ooa_links)){ 11076 11077 /* 11078 * This routine just checks to see whether 11079 * cur_blocked is blocked by ooa_io, which is ahead 11080 * of it in the queue. It doesn't queue/dequeue 11081 * cur_blocked. 11082 */ 11083 action = ctl_check_for_blockage(lun, pending_io, ooa_io); 11084 switch (action) { 11085 case CTL_ACTION_BLOCK: 11086 case CTL_ACTION_OVERLAP: 11087 case CTL_ACTION_OVERLAP_TAG: 11088 case CTL_ACTION_SKIP: 11089 case CTL_ACTION_ERROR: 11090 return (action); 11091 break; /* NOTREACHED */ 11092 case CTL_ACTION_PASS: 11093 break; 11094 default: 11095 panic("%s: Invalid action %d\n", __func__, action); 11096 } 11097 } 11098 11099 return (CTL_ACTION_PASS); 11100} 11101 11102/* 11103 * Assumptions: 11104 * - An I/O has just completed, and has been removed from the per-LUN OOA 11105 * queue, so some items on the blocked queue may now be unblocked. 11106 */ 11107static int 11108ctl_check_blocked(struct ctl_lun *lun) 11109{ 11110 struct ctl_softc *softc = lun->ctl_softc; 11111 union ctl_io *cur_blocked, *next_blocked; 11112 11113 mtx_assert(&lun->lun_lock, MA_OWNED); 11114 11115 /* 11116 * Run forward from the head of the blocked queue, checking each 11117 * entry against the I/Os prior to it on the OOA queue to see if 11118 * there is still any blockage. 11119 * 11120 * We cannot use the TAILQ_FOREACH() macro, because it can't deal 11121 * with our removing a variable on it while it is traversing the 11122 * list. 11123 */ 11124 for (cur_blocked = (union ctl_io *)TAILQ_FIRST(&lun->blocked_queue); 11125 cur_blocked != NULL; cur_blocked = next_blocked) { 11126 union ctl_io *prev_ooa; 11127 ctl_action action; 11128 11129 next_blocked = (union ctl_io *)TAILQ_NEXT(&cur_blocked->io_hdr, 11130 blocked_links); 11131 11132 prev_ooa = (union ctl_io *)TAILQ_PREV(&cur_blocked->io_hdr, 11133 ctl_ooaq, ooa_links); 11134 11135 /* 11136 * If cur_blocked happens to be the first item in the OOA 11137 * queue now, prev_ooa will be NULL, and the action 11138 * returned will just be CTL_ACTION_PASS. 11139 */ 11140 action = ctl_check_ooa(lun, cur_blocked, prev_ooa); 11141 11142 switch (action) { 11143 case CTL_ACTION_BLOCK: 11144 /* Nothing to do here, still blocked */ 11145 break; 11146 case CTL_ACTION_OVERLAP: 11147 case CTL_ACTION_OVERLAP_TAG: 11148 /* 11149 * This shouldn't happen! In theory we've already 11150 * checked this command for overlap... 11151 */ 11152 break; 11153 case CTL_ACTION_PASS: 11154 case CTL_ACTION_SKIP: { 11155 const struct ctl_cmd_entry *entry; 11156 11157 /* 11158 * The skip case shouldn't happen, this transaction 11159 * should have never made it onto the blocked queue. 11160 */ 11161 /* 11162 * This I/O is no longer blocked, we can remove it 11163 * from the blocked queue. Since this is a TAILQ 11164 * (doubly linked list), we can do O(1) removals 11165 * from any place on the list. 11166 */ 11167 TAILQ_REMOVE(&lun->blocked_queue, &cur_blocked->io_hdr, 11168 blocked_links); 11169 cur_blocked->io_hdr.flags &= ~CTL_FLAG_BLOCKED; 11170 11171 if ((softc->ha_mode != CTL_HA_MODE_XFER) && 11172 (cur_blocked->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)){ 11173 /* 11174 * Need to send IO back to original side to 11175 * run 11176 */ 11177 union ctl_ha_msg msg_info; 11178 11179 cur_blocked->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 11180 msg_info.hdr.original_sc = 11181 cur_blocked->io_hdr.original_sc; 11182 msg_info.hdr.serializing_sc = cur_blocked; 11183 msg_info.hdr.msg_type = CTL_MSG_R2R; 11184 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 11185 sizeof(msg_info.hdr), M_NOWAIT); 11186 break; 11187 } 11188 entry = ctl_get_cmd_entry(&cur_blocked->scsiio, NULL); 11189 11190 /* 11191 * Check this I/O for LUN state changes that may 11192 * have happened while this command was blocked. 11193 * The LUN state may have been changed by a command 11194 * ahead of us in the queue, so we need to re-check 11195 * for any states that can be caused by SCSI 11196 * commands. 11197 */ 11198 if (ctl_scsiio_lun_check(lun, entry, 11199 &cur_blocked->scsiio) == 0) { 11200 cur_blocked->io_hdr.flags |= 11201 CTL_FLAG_IS_WAS_ON_RTR; 11202 ctl_enqueue_rtr(cur_blocked); 11203 } else 11204 ctl_done(cur_blocked); 11205 break; 11206 } 11207 default: 11208 /* 11209 * This probably shouldn't happen -- we shouldn't 11210 * get CTL_ACTION_ERROR, or anything else. 11211 */ 11212 break; 11213 } 11214 } 11215 11216 return (CTL_RETVAL_COMPLETE); 11217} 11218 11219/* 11220 * This routine (with one exception) checks LUN flags that can be set by 11221 * commands ahead of us in the OOA queue. These flags have to be checked 11222 * when a command initially comes in, and when we pull a command off the 11223 * blocked queue and are preparing to execute it. The reason we have to 11224 * check these flags for commands on the blocked queue is that the LUN 11225 * state may have been changed by a command ahead of us while we're on the 11226 * blocked queue. 11227 * 11228 * Ordering is somewhat important with these checks, so please pay 11229 * careful attention to the placement of any new checks. 11230 */ 11231static int 11232ctl_scsiio_lun_check(struct ctl_lun *lun, 11233 const struct ctl_cmd_entry *entry, struct ctl_scsiio *ctsio) 11234{ 11235 struct ctl_softc *softc = lun->ctl_softc; 11236 int retval; 11237 uint32_t residx; 11238 11239 retval = 0; 11240 11241 mtx_assert(&lun->lun_lock, MA_OWNED); 11242 11243 /* 11244 * If this shelf is a secondary shelf controller, we may have to 11245 * reject some commands disallowed by HA mode and link state. 11246 */ 11247 if ((lun->flags & CTL_LUN_PRIMARY_SC) == 0) { 11248 if (softc->ha_link == CTL_HA_LINK_OFFLINE && 11249 (entry->flags & CTL_CMD_FLAG_OK_ON_UNAVAIL) == 0) { 11250 ctl_set_lun_unavail(ctsio); 11251 retval = 1; 11252 goto bailout; 11253 } 11254 if ((lun->flags & CTL_LUN_PEER_SC_PRIMARY) == 0 && 11255 (entry->flags & CTL_CMD_FLAG_OK_ON_UNAVAIL) == 0) { 11256 ctl_set_lun_transit(ctsio); 11257 retval = 1; 11258 goto bailout; 11259 } 11260 if (softc->ha_mode == CTL_HA_MODE_ACT_STBY && 11261 (entry->flags & CTL_CMD_FLAG_OK_ON_STANDBY) == 0) { 11262 ctl_set_lun_standby(ctsio); 11263 retval = 1; 11264 goto bailout; 11265 } 11266 11267 /* The rest of checks are only done on executing side */ 11268 if (softc->ha_mode == CTL_HA_MODE_XFER) 11269 goto bailout; 11270 } 11271 11272 if (entry->pattern & CTL_LUN_PAT_WRITE) { 11273 if (lun->be_lun && 11274 lun->be_lun->flags & CTL_LUN_FLAG_READONLY) { 11275 ctl_set_hw_write_protected(ctsio); 11276 retval = 1; 11277 goto bailout; 11278 } 11279 if ((lun->mode_pages.control_page[CTL_PAGE_CURRENT] 11280 .eca_and_aen & SCP_SWP) != 0) { 11281 ctl_set_sense(ctsio, /*current_error*/ 1, 11282 /*sense_key*/ SSD_KEY_DATA_PROTECT, 11283 /*asc*/ 0x27, /*ascq*/ 0x02, SSD_ELEM_NONE); 11284 retval = 1; 11285 goto bailout; 11286 } 11287 } 11288 11289 /* 11290 * Check for a reservation conflict. If this command isn't allowed 11291 * even on reserved LUNs, and if this initiator isn't the one who 11292 * reserved us, reject the command with a reservation conflict. 11293 */ 11294 residx = ctl_get_initindex(&ctsio->io_hdr.nexus); 11295 if ((lun->flags & CTL_LUN_RESERVED) 11296 && ((entry->flags & CTL_CMD_FLAG_ALLOW_ON_RESV) == 0)) { 11297 if (lun->res_idx != residx) { 11298 ctl_set_reservation_conflict(ctsio); 11299 retval = 1; 11300 goto bailout; 11301 } 11302 } 11303 11304 if ((lun->flags & CTL_LUN_PR_RESERVED) == 0 || 11305 (entry->flags & CTL_CMD_FLAG_ALLOW_ON_PR_RESV)) { 11306 /* No reservation or command is allowed. */; 11307 } else if ((entry->flags & CTL_CMD_FLAG_ALLOW_ON_PR_WRESV) && 11308 (lun->pr_res_type == SPR_TYPE_WR_EX || 11309 lun->pr_res_type == SPR_TYPE_WR_EX_RO || 11310 lun->pr_res_type == SPR_TYPE_WR_EX_AR)) { 11311 /* The command is allowed for Write Exclusive resv. */; 11312 } else { 11313 /* 11314 * if we aren't registered or it's a res holder type 11315 * reservation and this isn't the res holder then set a 11316 * conflict. 11317 */ 11318 if (ctl_get_prkey(lun, residx) == 0 || 11319 (residx != lun->pr_res_idx && lun->pr_res_type < 4)) { 11320 ctl_set_reservation_conflict(ctsio); 11321 retval = 1; 11322 goto bailout; 11323 } 11324 } 11325 11326 if ((entry->flags & CTL_CMD_FLAG_OK_ON_NO_MEDIA) == 0) { 11327 if (lun->flags & CTL_LUN_EJECTED) 11328 ctl_set_lun_ejected(ctsio); 11329 else if (lun->flags & CTL_LUN_NO_MEDIA) { 11330 if (lun->flags & CTL_LUN_REMOVABLE) 11331 ctl_set_lun_no_media(ctsio); 11332 else 11333 ctl_set_lun_int_reqd(ctsio); 11334 } else if (lun->flags & CTL_LUN_STOPPED) 11335 ctl_set_lun_stopped(ctsio); 11336 else 11337 goto bailout; 11338 retval = 1; 11339 goto bailout; 11340 } 11341 11342bailout: 11343 return (retval); 11344} 11345 11346static void 11347ctl_failover_io(union ctl_io *io, int have_lock) 11348{ 11349 ctl_set_busy(&io->scsiio); 11350 ctl_done(io); 11351} 11352 11353static void 11354ctl_failover_lun(union ctl_io *rio) 11355{ 11356 struct ctl_softc *softc = control_softc; 11357 struct ctl_lun *lun; 11358 struct ctl_io_hdr *io, *next_io; 11359 uint32_t targ_lun; 11360 11361 targ_lun = rio->io_hdr.nexus.targ_mapped_lun; 11362 CTL_DEBUG_PRINT(("FAILOVER for lun %ju\n", targ_lun)); 11363 11364 /* Find and lock the LUN. */ 11365 mtx_lock(&softc->ctl_lock); 11366 if ((targ_lun < CTL_MAX_LUNS) && 11367 ((lun = softc->ctl_luns[targ_lun]) != NULL)) { 11368 mtx_lock(&lun->lun_lock); 11369 mtx_unlock(&softc->ctl_lock); 11370 if (lun->flags & CTL_LUN_DISABLED) { 11371 mtx_unlock(&lun->lun_lock); 11372 return; 11373 } 11374 } else { 11375 mtx_unlock(&softc->ctl_lock); 11376 return; 11377 } 11378 11379 if (softc->ha_mode == CTL_HA_MODE_XFER) { 11380 TAILQ_FOREACH_SAFE(io, &lun->ooa_queue, ooa_links, next_io) { 11381 /* We are master */ 11382 if (io->flags & CTL_FLAG_FROM_OTHER_SC) { 11383 if (io->flags & CTL_FLAG_IO_ACTIVE) { 11384 io->flags |= CTL_FLAG_ABORT; 11385 io->flags |= CTL_FLAG_FAILOVER; 11386 } else { /* This can be only due to DATAMOVE */ 11387 io->msg_type = CTL_MSG_DATAMOVE_DONE; 11388 io->flags &= ~CTL_FLAG_DMA_INPROG; 11389 io->flags |= CTL_FLAG_IO_ACTIVE; 11390 io->port_status = 31340; 11391 ctl_enqueue_isc((union ctl_io *)io); 11392 } 11393 } 11394 /* We are slave */ 11395 if (io->flags & CTL_FLAG_SENT_2OTHER_SC) { 11396 io->flags &= ~CTL_FLAG_SENT_2OTHER_SC; 11397 if (io->flags & CTL_FLAG_IO_ACTIVE) { 11398 io->flags |= CTL_FLAG_FAILOVER; 11399 } else { 11400 ctl_set_busy(&((union ctl_io *)io)-> 11401 scsiio); 11402 ctl_done((union ctl_io *)io); 11403 } 11404 } 11405 } 11406 } else { /* SERIALIZE modes */ 11407 TAILQ_FOREACH_SAFE(io, &lun->blocked_queue, blocked_links, 11408 next_io) { 11409 /* We are master */ 11410 if (io->flags & CTL_FLAG_FROM_OTHER_SC) { 11411 TAILQ_REMOVE(&lun->blocked_queue, io, 11412 blocked_links); 11413 io->flags &= ~CTL_FLAG_BLOCKED; 11414 TAILQ_REMOVE(&lun->ooa_queue, io, ooa_links); 11415 ctl_free_io((union ctl_io *)io); 11416 } 11417 } 11418 TAILQ_FOREACH_SAFE(io, &lun->ooa_queue, ooa_links, next_io) { 11419 /* We are master */ 11420 if (io->flags & CTL_FLAG_FROM_OTHER_SC) { 11421 TAILQ_REMOVE(&lun->ooa_queue, io, ooa_links); 11422 ctl_free_io((union ctl_io *)io); 11423 } 11424 /* We are slave */ 11425 if (io->flags & CTL_FLAG_SENT_2OTHER_SC) { 11426 io->flags &= ~CTL_FLAG_SENT_2OTHER_SC; 11427 if (!(io->flags & CTL_FLAG_IO_ACTIVE)) { 11428 ctl_set_busy(&((union ctl_io *)io)-> 11429 scsiio); 11430 ctl_done((union ctl_io *)io); 11431 } 11432 } 11433 } 11434 ctl_check_blocked(lun); 11435 } 11436 mtx_unlock(&lun->lun_lock); 11437} 11438 11439static int 11440ctl_scsiio_precheck(struct ctl_softc *softc, struct ctl_scsiio *ctsio) 11441{ 11442 struct ctl_lun *lun; 11443 const struct ctl_cmd_entry *entry; 11444 uint32_t initidx, targ_lun; 11445 int retval; 11446 11447 retval = 0; 11448 11449 lun = NULL; 11450 11451 targ_lun = ctsio->io_hdr.nexus.targ_mapped_lun; 11452 if ((targ_lun < CTL_MAX_LUNS) 11453 && ((lun = softc->ctl_luns[targ_lun]) != NULL)) { 11454 /* 11455 * If the LUN is invalid, pretend that it doesn't exist. 11456 * It will go away as soon as all pending I/O has been 11457 * completed. 11458 */ 11459 mtx_lock(&lun->lun_lock); 11460 if (lun->flags & CTL_LUN_DISABLED) { 11461 mtx_unlock(&lun->lun_lock); 11462 lun = NULL; 11463 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr = NULL; 11464 ctsio->io_hdr.ctl_private[CTL_PRIV_BACKEND_LUN].ptr = NULL; 11465 } else { 11466 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr = lun; 11467 ctsio->io_hdr.ctl_private[CTL_PRIV_BACKEND_LUN].ptr = 11468 lun->be_lun; 11469 11470 /* 11471 * Every I/O goes into the OOA queue for a 11472 * particular LUN, and stays there until completion. 11473 */ 11474#ifdef CTL_TIME_IO 11475 if (TAILQ_EMPTY(&lun->ooa_queue)) { 11476 lun->idle_time += getsbinuptime() - 11477 lun->last_busy; 11478 } 11479#endif 11480 TAILQ_INSERT_TAIL(&lun->ooa_queue, &ctsio->io_hdr, 11481 ooa_links); 11482 } 11483 } else { 11484 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr = NULL; 11485 ctsio->io_hdr.ctl_private[CTL_PRIV_BACKEND_LUN].ptr = NULL; 11486 } 11487 11488 /* Get command entry and return error if it is unsuppotyed. */ 11489 entry = ctl_validate_command(ctsio); 11490 if (entry == NULL) { 11491 if (lun) 11492 mtx_unlock(&lun->lun_lock); 11493 return (retval); 11494 } 11495 11496 ctsio->io_hdr.flags &= ~CTL_FLAG_DATA_MASK; 11497 ctsio->io_hdr.flags |= entry->flags & CTL_FLAG_DATA_MASK; 11498 11499 /* 11500 * Check to see whether we can send this command to LUNs that don't 11501 * exist. This should pretty much only be the case for inquiry 11502 * and request sense. Further checks, below, really require having 11503 * a LUN, so we can't really check the command anymore. Just put 11504 * it on the rtr queue. 11505 */ 11506 if (lun == NULL) { 11507 if (entry->flags & CTL_CMD_FLAG_OK_ON_NO_LUN) { 11508 ctsio->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 11509 ctl_enqueue_rtr((union ctl_io *)ctsio); 11510 return (retval); 11511 } 11512 11513 ctl_set_unsupported_lun(ctsio); 11514 ctl_done((union ctl_io *)ctsio); 11515 CTL_DEBUG_PRINT(("ctl_scsiio_precheck: bailing out due to invalid LUN\n")); 11516 return (retval); 11517 } else { 11518 /* 11519 * Make sure we support this particular command on this LUN. 11520 * e.g., we don't support writes to the control LUN. 11521 */ 11522 if (!ctl_cmd_applicable(lun->be_lun->lun_type, entry)) { 11523 mtx_unlock(&lun->lun_lock); 11524 ctl_set_invalid_opcode(ctsio); 11525 ctl_done((union ctl_io *)ctsio); 11526 return (retval); 11527 } 11528 } 11529 11530 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 11531 11532#ifdef CTL_WITH_CA 11533 /* 11534 * If we've got a request sense, it'll clear the contingent 11535 * allegiance condition. Otherwise, if we have a CA condition for 11536 * this initiator, clear it, because it sent down a command other 11537 * than request sense. 11538 */ 11539 if ((ctsio->cdb[0] != REQUEST_SENSE) 11540 && (ctl_is_set(lun->have_ca, initidx))) 11541 ctl_clear_mask(lun->have_ca, initidx); 11542#endif 11543 11544 /* 11545 * If the command has this flag set, it handles its own unit 11546 * attention reporting, we shouldn't do anything. Otherwise we 11547 * check for any pending unit attentions, and send them back to the 11548 * initiator. We only do this when a command initially comes in, 11549 * not when we pull it off the blocked queue. 11550 * 11551 * According to SAM-3, section 5.3.2, the order that things get 11552 * presented back to the host is basically unit attentions caused 11553 * by some sort of reset event, busy status, reservation conflicts 11554 * or task set full, and finally any other status. 11555 * 11556 * One issue here is that some of the unit attentions we report 11557 * don't fall into the "reset" category (e.g. "reported luns data 11558 * has changed"). So reporting it here, before the reservation 11559 * check, may be technically wrong. I guess the only thing to do 11560 * would be to check for and report the reset events here, and then 11561 * check for the other unit attention types after we check for a 11562 * reservation conflict. 11563 * 11564 * XXX KDM need to fix this 11565 */ 11566 if ((entry->flags & CTL_CMD_FLAG_NO_SENSE) == 0) { 11567 ctl_ua_type ua_type; 11568 11569 ua_type = ctl_build_ua(lun, initidx, &ctsio->sense_data, 11570 SSD_TYPE_NONE); 11571 if (ua_type != CTL_UA_NONE) { 11572 mtx_unlock(&lun->lun_lock); 11573 ctsio->scsi_status = SCSI_STATUS_CHECK_COND; 11574 ctsio->io_hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 11575 ctsio->sense_len = SSD_FULL_SIZE; 11576 ctl_done((union ctl_io *)ctsio); 11577 return (retval); 11578 } 11579 } 11580 11581 11582 if (ctl_scsiio_lun_check(lun, entry, ctsio) != 0) { 11583 mtx_unlock(&lun->lun_lock); 11584 ctl_done((union ctl_io *)ctsio); 11585 return (retval); 11586 } 11587 11588 /* 11589 * XXX CHD this is where we want to send IO to other side if 11590 * this LUN is secondary on this SC. We will need to make a copy 11591 * of the IO and flag the IO on this side as SENT_2OTHER and the flag 11592 * the copy we send as FROM_OTHER. 11593 * We also need to stuff the address of the original IO so we can 11594 * find it easily. Something similar will need be done on the other 11595 * side so when we are done we can find the copy. 11596 */ 11597 if ((lun->flags & CTL_LUN_PRIMARY_SC) == 0 && 11598 (lun->flags & CTL_LUN_PEER_SC_PRIMARY) != 0 && 11599 (entry->flags & CTL_CMD_FLAG_RUN_HERE) == 0) { 11600 union ctl_ha_msg msg_info; 11601 int isc_retval; 11602 11603 ctsio->io_hdr.flags |= CTL_FLAG_SENT_2OTHER_SC; 11604 ctsio->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 11605 mtx_unlock(&lun->lun_lock); 11606 11607 msg_info.hdr.msg_type = CTL_MSG_SERIALIZE; 11608 msg_info.hdr.original_sc = (union ctl_io *)ctsio; 11609 msg_info.hdr.serializing_sc = NULL; 11610 msg_info.hdr.nexus = ctsio->io_hdr.nexus; 11611 msg_info.scsi.tag_num = ctsio->tag_num; 11612 msg_info.scsi.tag_type = ctsio->tag_type; 11613 msg_info.scsi.cdb_len = ctsio->cdb_len; 11614 memcpy(msg_info.scsi.cdb, ctsio->cdb, CTL_MAX_CDBLEN); 11615 11616 if ((isc_retval = ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 11617 sizeof(msg_info.scsi) - sizeof(msg_info.scsi.sense_data), 11618 M_WAITOK)) > CTL_HA_STATUS_SUCCESS) { 11619 ctl_set_busy(ctsio); 11620 ctl_done((union ctl_io *)ctsio); 11621 return (retval); 11622 } 11623 return (retval); 11624 } 11625 11626 switch (ctl_check_ooa(lun, (union ctl_io *)ctsio, 11627 (union ctl_io *)TAILQ_PREV(&ctsio->io_hdr, 11628 ctl_ooaq, ooa_links))) { 11629 case CTL_ACTION_BLOCK: 11630 ctsio->io_hdr.flags |= CTL_FLAG_BLOCKED; 11631 TAILQ_INSERT_TAIL(&lun->blocked_queue, &ctsio->io_hdr, 11632 blocked_links); 11633 mtx_unlock(&lun->lun_lock); 11634 return (retval); 11635 case CTL_ACTION_PASS: 11636 case CTL_ACTION_SKIP: 11637 ctsio->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 11638 mtx_unlock(&lun->lun_lock); 11639 ctl_enqueue_rtr((union ctl_io *)ctsio); 11640 break; 11641 case CTL_ACTION_OVERLAP: 11642 mtx_unlock(&lun->lun_lock); 11643 ctl_set_overlapped_cmd(ctsio); 11644 ctl_done((union ctl_io *)ctsio); 11645 break; 11646 case CTL_ACTION_OVERLAP_TAG: 11647 mtx_unlock(&lun->lun_lock); 11648 ctl_set_overlapped_tag(ctsio, ctsio->tag_num & 0xff); 11649 ctl_done((union ctl_io *)ctsio); 11650 break; 11651 case CTL_ACTION_ERROR: 11652 default: 11653 mtx_unlock(&lun->lun_lock); 11654 ctl_set_internal_failure(ctsio, 11655 /*sks_valid*/ 0, 11656 /*retry_count*/ 0); 11657 ctl_done((union ctl_io *)ctsio); 11658 break; 11659 } 11660 return (retval); 11661} 11662 11663const struct ctl_cmd_entry * 11664ctl_get_cmd_entry(struct ctl_scsiio *ctsio, int *sa) 11665{ 11666 const struct ctl_cmd_entry *entry; 11667 int service_action; 11668 11669 entry = &ctl_cmd_table[ctsio->cdb[0]]; 11670 if (sa) 11671 *sa = ((entry->flags & CTL_CMD_FLAG_SA5) != 0); 11672 if (entry->flags & CTL_CMD_FLAG_SA5) { 11673 service_action = ctsio->cdb[1] & SERVICE_ACTION_MASK; 11674 entry = &((const struct ctl_cmd_entry *) 11675 entry->execute)[service_action]; 11676 } 11677 return (entry); 11678} 11679 11680const struct ctl_cmd_entry * 11681ctl_validate_command(struct ctl_scsiio *ctsio) 11682{ 11683 const struct ctl_cmd_entry *entry; 11684 int i, sa; 11685 uint8_t diff; 11686 11687 entry = ctl_get_cmd_entry(ctsio, &sa); 11688 if (entry->execute == NULL) { 11689 if (sa) 11690 ctl_set_invalid_field(ctsio, 11691 /*sks_valid*/ 1, 11692 /*command*/ 1, 11693 /*field*/ 1, 11694 /*bit_valid*/ 1, 11695 /*bit*/ 4); 11696 else 11697 ctl_set_invalid_opcode(ctsio); 11698 ctl_done((union ctl_io *)ctsio); 11699 return (NULL); 11700 } 11701 KASSERT(entry->length > 0, 11702 ("Not defined length for command 0x%02x/0x%02x", 11703 ctsio->cdb[0], ctsio->cdb[1])); 11704 for (i = 1; i < entry->length; i++) { 11705 diff = ctsio->cdb[i] & ~entry->usage[i - 1]; 11706 if (diff == 0) 11707 continue; 11708 ctl_set_invalid_field(ctsio, 11709 /*sks_valid*/ 1, 11710 /*command*/ 1, 11711 /*field*/ i, 11712 /*bit_valid*/ 1, 11713 /*bit*/ fls(diff) - 1); 11714 ctl_done((union ctl_io *)ctsio); 11715 return (NULL); 11716 } 11717 return (entry); 11718} 11719 11720static int 11721ctl_cmd_applicable(uint8_t lun_type, const struct ctl_cmd_entry *entry) 11722{ 11723 11724 switch (lun_type) { 11725 case T_DIRECT: 11726 if ((entry->flags & CTL_CMD_FLAG_OK_ON_DIRECT) == 0) 11727 return (0); 11728 break; 11729 case T_PROCESSOR: 11730 if ((entry->flags & CTL_CMD_FLAG_OK_ON_PROC) == 0) 11731 return (0); 11732 break; 11733 case T_CDROM: 11734 if ((entry->flags & CTL_CMD_FLAG_OK_ON_CDROM) == 0) 11735 return (0); 11736 break; 11737 default: 11738 return (0); 11739 } 11740 return (1); 11741} 11742 11743static int 11744ctl_scsiio(struct ctl_scsiio *ctsio) 11745{ 11746 int retval; 11747 const struct ctl_cmd_entry *entry; 11748 11749 retval = CTL_RETVAL_COMPLETE; 11750 11751 CTL_DEBUG_PRINT(("ctl_scsiio cdb[0]=%02X\n", ctsio->cdb[0])); 11752 11753 entry = ctl_get_cmd_entry(ctsio, NULL); 11754 11755 /* 11756 * If this I/O has been aborted, just send it straight to 11757 * ctl_done() without executing it. 11758 */ 11759 if (ctsio->io_hdr.flags & CTL_FLAG_ABORT) { 11760 ctl_done((union ctl_io *)ctsio); 11761 goto bailout; 11762 } 11763 11764 /* 11765 * All the checks should have been handled by ctl_scsiio_precheck(). 11766 * We should be clear now to just execute the I/O. 11767 */ 11768 retval = entry->execute(ctsio); 11769 11770bailout: 11771 return (retval); 11772} 11773 11774/* 11775 * Since we only implement one target right now, a bus reset simply resets 11776 * our single target. 11777 */ 11778static int 11779ctl_bus_reset(struct ctl_softc *softc, union ctl_io *io) 11780{ 11781 return(ctl_target_reset(softc, io, CTL_UA_BUS_RESET)); 11782} 11783 11784static int 11785ctl_target_reset(struct ctl_softc *softc, union ctl_io *io, 11786 ctl_ua_type ua_type) 11787{ 11788 struct ctl_port *port; 11789 struct ctl_lun *lun; 11790 int retval; 11791 11792 if (!(io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)) { 11793 union ctl_ha_msg msg_info; 11794 11795 msg_info.hdr.nexus = io->io_hdr.nexus; 11796 if (ua_type==CTL_UA_TARG_RESET) 11797 msg_info.task.task_action = CTL_TASK_TARGET_RESET; 11798 else 11799 msg_info.task.task_action = CTL_TASK_BUS_RESET; 11800 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 11801 msg_info.hdr.original_sc = NULL; 11802 msg_info.hdr.serializing_sc = NULL; 11803 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 11804 sizeof(msg_info.task), M_WAITOK); 11805 } 11806 retval = 0; 11807 11808 mtx_lock(&softc->ctl_lock); 11809 port = ctl_io_port(&io->io_hdr); 11810 STAILQ_FOREACH(lun, &softc->lun_list, links) { 11811 if (port != NULL && 11812 ctl_lun_map_to_port(port, lun->lun) >= CTL_MAX_LUNS) 11813 continue; 11814 retval += ctl_do_lun_reset(lun, io, ua_type); 11815 } 11816 mtx_unlock(&softc->ctl_lock); 11817 io->taskio.task_status = CTL_TASK_FUNCTION_COMPLETE; 11818 return (retval); 11819} 11820 11821/* 11822 * The LUN should always be set. The I/O is optional, and is used to 11823 * distinguish between I/Os sent by this initiator, and by other 11824 * initiators. We set unit attention for initiators other than this one. 11825 * SAM-3 is vague on this point. It does say that a unit attention should 11826 * be established for other initiators when a LUN is reset (see section 11827 * 5.7.3), but it doesn't specifically say that the unit attention should 11828 * be established for this particular initiator when a LUN is reset. Here 11829 * is the relevant text, from SAM-3 rev 8: 11830 * 11831 * 5.7.2 When a SCSI initiator port aborts its own tasks 11832 * 11833 * When a SCSI initiator port causes its own task(s) to be aborted, no 11834 * notification that the task(s) have been aborted shall be returned to 11835 * the SCSI initiator port other than the completion response for the 11836 * command or task management function action that caused the task(s) to 11837 * be aborted and notification(s) associated with related effects of the 11838 * action (e.g., a reset unit attention condition). 11839 * 11840 * XXX KDM for now, we're setting unit attention for all initiators. 11841 */ 11842static int 11843ctl_do_lun_reset(struct ctl_lun *lun, union ctl_io *io, ctl_ua_type ua_type) 11844{ 11845 union ctl_io *xio; 11846#if 0 11847 uint32_t initidx; 11848#endif 11849 int i; 11850 11851 mtx_lock(&lun->lun_lock); 11852 /* 11853 * Run through the OOA queue and abort each I/O. 11854 */ 11855 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 11856 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 11857 xio->io_hdr.flags |= CTL_FLAG_ABORT | CTL_FLAG_ABORT_STATUS; 11858 } 11859 11860 /* 11861 * This version sets unit attention for every 11862 */ 11863#if 0 11864 initidx = ctl_get_initindex(&io->io_hdr.nexus); 11865 ctl_est_ua_all(lun, initidx, ua_type); 11866#else 11867 ctl_est_ua_all(lun, -1, ua_type); 11868#endif 11869 11870 /* 11871 * A reset (any kind, really) clears reservations established with 11872 * RESERVE/RELEASE. It does not clear reservations established 11873 * with PERSISTENT RESERVE OUT, but we don't support that at the 11874 * moment anyway. See SPC-2, section 5.6. SPC-3 doesn't address 11875 * reservations made with the RESERVE/RELEASE commands, because 11876 * those commands are obsolete in SPC-3. 11877 */ 11878 lun->flags &= ~CTL_LUN_RESERVED; 11879 11880#ifdef CTL_WITH_CA 11881 for (i = 0; i < CTL_MAX_INITIATORS; i++) 11882 ctl_clear_mask(lun->have_ca, i); 11883#endif 11884 lun->prevent_count = 0; 11885 for (i = 0; i < CTL_MAX_INITIATORS; i++) 11886 ctl_clear_mask(lun->prevent, i); 11887 mtx_unlock(&lun->lun_lock); 11888 11889 return (0); 11890} 11891 11892static int 11893ctl_lun_reset(struct ctl_softc *softc, union ctl_io *io) 11894{ 11895 struct ctl_lun *lun; 11896 uint32_t targ_lun; 11897 int retval; 11898 11899 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 11900 mtx_lock(&softc->ctl_lock); 11901 if ((targ_lun >= CTL_MAX_LUNS) || 11902 (lun = softc->ctl_luns[targ_lun]) == NULL) { 11903 mtx_unlock(&softc->ctl_lock); 11904 io->taskio.task_status = CTL_TASK_LUN_DOES_NOT_EXIST; 11905 return (1); 11906 } 11907 retval = ctl_do_lun_reset(lun, io, CTL_UA_LUN_RESET); 11908 mtx_unlock(&softc->ctl_lock); 11909 io->taskio.task_status = CTL_TASK_FUNCTION_COMPLETE; 11910 11911 if ((io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) == 0) { 11912 union ctl_ha_msg msg_info; 11913 11914 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 11915 msg_info.hdr.nexus = io->io_hdr.nexus; 11916 msg_info.task.task_action = CTL_TASK_LUN_RESET; 11917 msg_info.hdr.original_sc = NULL; 11918 msg_info.hdr.serializing_sc = NULL; 11919 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 11920 sizeof(msg_info.task), M_WAITOK); 11921 } 11922 return (retval); 11923} 11924 11925static void 11926ctl_abort_tasks_lun(struct ctl_lun *lun, uint32_t targ_port, uint32_t init_id, 11927 int other_sc) 11928{ 11929 union ctl_io *xio; 11930 11931 mtx_assert(&lun->lun_lock, MA_OWNED); 11932 11933 /* 11934 * Run through the OOA queue and attempt to find the given I/O. 11935 * The target port, initiator ID, tag type and tag number have to 11936 * match the values that we got from the initiator. If we have an 11937 * untagged command to abort, simply abort the first untagged command 11938 * we come to. We only allow one untagged command at a time of course. 11939 */ 11940 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 11941 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 11942 11943 if ((targ_port == UINT32_MAX || 11944 targ_port == xio->io_hdr.nexus.targ_port) && 11945 (init_id == UINT32_MAX || 11946 init_id == xio->io_hdr.nexus.initid)) { 11947 if (targ_port != xio->io_hdr.nexus.targ_port || 11948 init_id != xio->io_hdr.nexus.initid) 11949 xio->io_hdr.flags |= CTL_FLAG_ABORT_STATUS; 11950 xio->io_hdr.flags |= CTL_FLAG_ABORT; 11951 if (!other_sc && !(lun->flags & CTL_LUN_PRIMARY_SC)) { 11952 union ctl_ha_msg msg_info; 11953 11954 msg_info.hdr.nexus = xio->io_hdr.nexus; 11955 msg_info.task.task_action = CTL_TASK_ABORT_TASK; 11956 msg_info.task.tag_num = xio->scsiio.tag_num; 11957 msg_info.task.tag_type = xio->scsiio.tag_type; 11958 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 11959 msg_info.hdr.original_sc = NULL; 11960 msg_info.hdr.serializing_sc = NULL; 11961 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 11962 sizeof(msg_info.task), M_NOWAIT); 11963 } 11964 } 11965 } 11966} 11967 11968static int 11969ctl_abort_task_set(union ctl_io *io) 11970{ 11971 struct ctl_softc *softc = control_softc; 11972 struct ctl_lun *lun; 11973 uint32_t targ_lun; 11974 11975 /* 11976 * Look up the LUN. 11977 */ 11978 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 11979 mtx_lock(&softc->ctl_lock); 11980 if ((targ_lun >= CTL_MAX_LUNS) || 11981 (lun = softc->ctl_luns[targ_lun]) == NULL) { 11982 mtx_unlock(&softc->ctl_lock); 11983 io->taskio.task_status = CTL_TASK_LUN_DOES_NOT_EXIST; 11984 return (1); 11985 } 11986 11987 mtx_lock(&lun->lun_lock); 11988 mtx_unlock(&softc->ctl_lock); 11989 if (io->taskio.task_action == CTL_TASK_ABORT_TASK_SET) { 11990 ctl_abort_tasks_lun(lun, io->io_hdr.nexus.targ_port, 11991 io->io_hdr.nexus.initid, 11992 (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) != 0); 11993 } else { /* CTL_TASK_CLEAR_TASK_SET */ 11994 ctl_abort_tasks_lun(lun, UINT32_MAX, UINT32_MAX, 11995 (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) != 0); 11996 } 11997 mtx_unlock(&lun->lun_lock); 11998 io->taskio.task_status = CTL_TASK_FUNCTION_COMPLETE; 11999 return (0); 12000} 12001 12002static int 12003ctl_i_t_nexus_reset(union ctl_io *io) 12004{ 12005 struct ctl_softc *softc = control_softc; 12006 struct ctl_lun *lun; 12007 uint32_t initidx; 12008 12009 if (!(io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)) { 12010 union ctl_ha_msg msg_info; 12011 12012 msg_info.hdr.nexus = io->io_hdr.nexus; 12013 msg_info.task.task_action = CTL_TASK_I_T_NEXUS_RESET; 12014 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 12015 msg_info.hdr.original_sc = NULL; 12016 msg_info.hdr.serializing_sc = NULL; 12017 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 12018 sizeof(msg_info.task), M_WAITOK); 12019 } 12020 12021 initidx = ctl_get_initindex(&io->io_hdr.nexus); 12022 mtx_lock(&softc->ctl_lock); 12023 STAILQ_FOREACH(lun, &softc->lun_list, links) { 12024 mtx_lock(&lun->lun_lock); 12025 ctl_abort_tasks_lun(lun, io->io_hdr.nexus.targ_port, 12026 io->io_hdr.nexus.initid, 1); 12027#ifdef CTL_WITH_CA 12028 ctl_clear_mask(lun->have_ca, initidx); 12029#endif 12030 if ((lun->flags & CTL_LUN_RESERVED) && (lun->res_idx == initidx)) 12031 lun->flags &= ~CTL_LUN_RESERVED; 12032 if (ctl_is_set(lun->prevent, initidx)) { 12033 ctl_clear_mask(lun->prevent, initidx); 12034 lun->prevent_count--; 12035 } 12036 ctl_est_ua(lun, initidx, CTL_UA_I_T_NEXUS_LOSS); 12037 mtx_unlock(&lun->lun_lock); 12038 } 12039 mtx_unlock(&softc->ctl_lock); 12040 io->taskio.task_status = CTL_TASK_FUNCTION_COMPLETE; 12041 return (0); 12042} 12043 12044static int 12045ctl_abort_task(union ctl_io *io) 12046{ 12047 union ctl_io *xio; 12048 struct ctl_lun *lun; 12049 struct ctl_softc *softc; 12050#if 0 12051 struct sbuf sb; 12052 char printbuf[128]; 12053#endif 12054 int found; 12055 uint32_t targ_lun; 12056 12057 softc = control_softc; 12058 found = 0; 12059 12060 /* 12061 * Look up the LUN. 12062 */ 12063 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12064 mtx_lock(&softc->ctl_lock); 12065 if ((targ_lun >= CTL_MAX_LUNS) || 12066 (lun = softc->ctl_luns[targ_lun]) == NULL) { 12067 mtx_unlock(&softc->ctl_lock); 12068 io->taskio.task_status = CTL_TASK_LUN_DOES_NOT_EXIST; 12069 return (1); 12070 } 12071 12072#if 0 12073 printf("ctl_abort_task: called for lun %lld, tag %d type %d\n", 12074 lun->lun, io->taskio.tag_num, io->taskio.tag_type); 12075#endif 12076 12077 mtx_lock(&lun->lun_lock); 12078 mtx_unlock(&softc->ctl_lock); 12079 /* 12080 * Run through the OOA queue and attempt to find the given I/O. 12081 * The target port, initiator ID, tag type and tag number have to 12082 * match the values that we got from the initiator. If we have an 12083 * untagged command to abort, simply abort the first untagged command 12084 * we come to. We only allow one untagged command at a time of course. 12085 */ 12086 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 12087 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 12088#if 0 12089 sbuf_new(&sb, printbuf, sizeof(printbuf), SBUF_FIXEDLEN); 12090 12091 sbuf_printf(&sb, "LUN %lld tag %d type %d%s%s%s%s: ", 12092 lun->lun, xio->scsiio.tag_num, 12093 xio->scsiio.tag_type, 12094 (xio->io_hdr.blocked_links.tqe_prev 12095 == NULL) ? "" : " BLOCKED", 12096 (xio->io_hdr.flags & 12097 CTL_FLAG_DMA_INPROG) ? " DMA" : "", 12098 (xio->io_hdr.flags & 12099 CTL_FLAG_ABORT) ? " ABORT" : "", 12100 (xio->io_hdr.flags & 12101 CTL_FLAG_IS_WAS_ON_RTR ? " RTR" : "")); 12102 ctl_scsi_command_string(&xio->scsiio, NULL, &sb); 12103 sbuf_finish(&sb); 12104 printf("%s\n", sbuf_data(&sb)); 12105#endif 12106 12107 if ((xio->io_hdr.nexus.targ_port != io->io_hdr.nexus.targ_port) 12108 || (xio->io_hdr.nexus.initid != io->io_hdr.nexus.initid) 12109 || (xio->io_hdr.flags & CTL_FLAG_ABORT)) 12110 continue; 12111 12112 /* 12113 * If the abort says that the task is untagged, the 12114 * task in the queue must be untagged. Otherwise, 12115 * we just check to see whether the tag numbers 12116 * match. This is because the QLogic firmware 12117 * doesn't pass back the tag type in an abort 12118 * request. 12119 */ 12120#if 0 12121 if (((xio->scsiio.tag_type == CTL_TAG_UNTAGGED) 12122 && (io->taskio.tag_type == CTL_TAG_UNTAGGED)) 12123 || (xio->scsiio.tag_num == io->taskio.tag_num)) 12124#endif 12125 /* 12126 * XXX KDM we've got problems with FC, because it 12127 * doesn't send down a tag type with aborts. So we 12128 * can only really go by the tag number... 12129 * This may cause problems with parallel SCSI. 12130 * Need to figure that out!! 12131 */ 12132 if (xio->scsiio.tag_num == io->taskio.tag_num) { 12133 xio->io_hdr.flags |= CTL_FLAG_ABORT; 12134 found = 1; 12135 if ((io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) == 0 && 12136 !(lun->flags & CTL_LUN_PRIMARY_SC)) { 12137 union ctl_ha_msg msg_info; 12138 12139 msg_info.hdr.nexus = io->io_hdr.nexus; 12140 msg_info.task.task_action = CTL_TASK_ABORT_TASK; 12141 msg_info.task.tag_num = io->taskio.tag_num; 12142 msg_info.task.tag_type = io->taskio.tag_type; 12143 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 12144 msg_info.hdr.original_sc = NULL; 12145 msg_info.hdr.serializing_sc = NULL; 12146#if 0 12147 printf("Sent Abort to other side\n"); 12148#endif 12149 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 12150 sizeof(msg_info.task), M_NOWAIT); 12151 } 12152#if 0 12153 printf("ctl_abort_task: found I/O to abort\n"); 12154#endif 12155 } 12156 } 12157 mtx_unlock(&lun->lun_lock); 12158 12159 if (found == 0) { 12160 /* 12161 * This isn't really an error. It's entirely possible for 12162 * the abort and command completion to cross on the wire. 12163 * This is more of an informative/diagnostic error. 12164 */ 12165#if 0 12166 printf("ctl_abort_task: ABORT sent for nonexistent I/O: " 12167 "%u:%u:%u tag %d type %d\n", 12168 io->io_hdr.nexus.initid, 12169 io->io_hdr.nexus.targ_port, 12170 io->io_hdr.nexus.targ_lun, io->taskio.tag_num, 12171 io->taskio.tag_type); 12172#endif 12173 } 12174 io->taskio.task_status = CTL_TASK_FUNCTION_COMPLETE; 12175 return (0); 12176} 12177 12178static int 12179ctl_query_task(union ctl_io *io, int task_set) 12180{ 12181 union ctl_io *xio; 12182 struct ctl_lun *lun; 12183 struct ctl_softc *softc; 12184 int found = 0; 12185 uint32_t targ_lun; 12186 12187 softc = control_softc; 12188 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12189 mtx_lock(&softc->ctl_lock); 12190 if ((targ_lun >= CTL_MAX_LUNS) || 12191 (lun = softc->ctl_luns[targ_lun]) == NULL) { 12192 mtx_unlock(&softc->ctl_lock); 12193 io->taskio.task_status = CTL_TASK_LUN_DOES_NOT_EXIST; 12194 return (1); 12195 } 12196 mtx_lock(&lun->lun_lock); 12197 mtx_unlock(&softc->ctl_lock); 12198 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 12199 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 12200 12201 if ((xio->io_hdr.nexus.targ_port != io->io_hdr.nexus.targ_port) 12202 || (xio->io_hdr.nexus.initid != io->io_hdr.nexus.initid) 12203 || (xio->io_hdr.flags & CTL_FLAG_ABORT)) 12204 continue; 12205 12206 if (task_set || xio->scsiio.tag_num == io->taskio.tag_num) { 12207 found = 1; 12208 break; 12209 } 12210 } 12211 mtx_unlock(&lun->lun_lock); 12212 if (found) 12213 io->taskio.task_status = CTL_TASK_FUNCTION_SUCCEEDED; 12214 else 12215 io->taskio.task_status = CTL_TASK_FUNCTION_COMPLETE; 12216 return (0); 12217} 12218 12219static int 12220ctl_query_async_event(union ctl_io *io) 12221{ 12222 struct ctl_lun *lun; 12223 struct ctl_softc *softc; 12224 ctl_ua_type ua; 12225 uint32_t targ_lun, initidx; 12226 12227 softc = control_softc; 12228 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12229 mtx_lock(&softc->ctl_lock); 12230 if ((targ_lun >= CTL_MAX_LUNS) || 12231 (lun = softc->ctl_luns[targ_lun]) == NULL) { 12232 mtx_unlock(&softc->ctl_lock); 12233 io->taskio.task_status = CTL_TASK_LUN_DOES_NOT_EXIST; 12234 return (1); 12235 } 12236 mtx_lock(&lun->lun_lock); 12237 mtx_unlock(&softc->ctl_lock); 12238 initidx = ctl_get_initindex(&io->io_hdr.nexus); 12239 ua = ctl_build_qae(lun, initidx, io->taskio.task_resp); 12240 mtx_unlock(&lun->lun_lock); 12241 if (ua != CTL_UA_NONE) 12242 io->taskio.task_status = CTL_TASK_FUNCTION_SUCCEEDED; 12243 else 12244 io->taskio.task_status = CTL_TASK_FUNCTION_COMPLETE; 12245 return (0); 12246} 12247 12248static void 12249ctl_run_task(union ctl_io *io) 12250{ 12251 struct ctl_softc *softc = control_softc; 12252 int retval = 1; 12253 12254 CTL_DEBUG_PRINT(("ctl_run_task\n")); 12255 KASSERT(io->io_hdr.io_type == CTL_IO_TASK, 12256 ("ctl_run_task: Unextected io_type %d\n", io->io_hdr.io_type)); 12257 io->taskio.task_status = CTL_TASK_FUNCTION_NOT_SUPPORTED; 12258 bzero(io->taskio.task_resp, sizeof(io->taskio.task_resp)); 12259 switch (io->taskio.task_action) { 12260 case CTL_TASK_ABORT_TASK: 12261 retval = ctl_abort_task(io); 12262 break; 12263 case CTL_TASK_ABORT_TASK_SET: 12264 case CTL_TASK_CLEAR_TASK_SET: 12265 retval = ctl_abort_task_set(io); 12266 break; 12267 case CTL_TASK_CLEAR_ACA: 12268 break; 12269 case CTL_TASK_I_T_NEXUS_RESET: 12270 retval = ctl_i_t_nexus_reset(io); 12271 break; 12272 case CTL_TASK_LUN_RESET: 12273 retval = ctl_lun_reset(softc, io); 12274 break; 12275 case CTL_TASK_TARGET_RESET: 12276 retval = ctl_target_reset(softc, io, CTL_UA_TARG_RESET); 12277 break; 12278 case CTL_TASK_BUS_RESET: 12279 retval = ctl_bus_reset(softc, io); 12280 break; 12281 case CTL_TASK_PORT_LOGIN: 12282 break; 12283 case CTL_TASK_PORT_LOGOUT: 12284 break; 12285 case CTL_TASK_QUERY_TASK: 12286 retval = ctl_query_task(io, 0); 12287 break; 12288 case CTL_TASK_QUERY_TASK_SET: 12289 retval = ctl_query_task(io, 1); 12290 break; 12291 case CTL_TASK_QUERY_ASYNC_EVENT: 12292 retval = ctl_query_async_event(io); 12293 break; 12294 default: 12295 printf("%s: got unknown task management event %d\n", 12296 __func__, io->taskio.task_action); 12297 break; 12298 } 12299 if (retval == 0) 12300 io->io_hdr.status = CTL_SUCCESS; 12301 else 12302 io->io_hdr.status = CTL_ERROR; 12303 ctl_done(io); 12304} 12305 12306/* 12307 * For HA operation. Handle commands that come in from the other 12308 * controller. 12309 */ 12310static void 12311ctl_handle_isc(union ctl_io *io) 12312{ 12313 int free_io; 12314 struct ctl_lun *lun; 12315 struct ctl_softc *softc = control_softc; 12316 uint32_t targ_lun; 12317 12318 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12319 lun = softc->ctl_luns[targ_lun]; 12320 12321 switch (io->io_hdr.msg_type) { 12322 case CTL_MSG_SERIALIZE: 12323 free_io = ctl_serialize_other_sc_cmd(&io->scsiio); 12324 break; 12325 case CTL_MSG_R2R: { 12326 const struct ctl_cmd_entry *entry; 12327 12328 /* 12329 * This is only used in SER_ONLY mode. 12330 */ 12331 free_io = 0; 12332 entry = ctl_get_cmd_entry(&io->scsiio, NULL); 12333 mtx_lock(&lun->lun_lock); 12334 if (ctl_scsiio_lun_check(lun, 12335 entry, (struct ctl_scsiio *)io) != 0) { 12336 mtx_unlock(&lun->lun_lock); 12337 ctl_done(io); 12338 break; 12339 } 12340 io->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 12341 mtx_unlock(&lun->lun_lock); 12342 ctl_enqueue_rtr(io); 12343 break; 12344 } 12345 case CTL_MSG_FINISH_IO: 12346 if (softc->ha_mode == CTL_HA_MODE_XFER) { 12347 free_io = 0; 12348 ctl_done(io); 12349 } else { 12350 free_io = 1; 12351 mtx_lock(&lun->lun_lock); 12352 TAILQ_REMOVE(&lun->ooa_queue, &io->io_hdr, 12353 ooa_links); 12354 ctl_check_blocked(lun); 12355 mtx_unlock(&lun->lun_lock); 12356 } 12357 break; 12358 case CTL_MSG_PERS_ACTION: 12359 ctl_hndl_per_res_out_on_other_sc( 12360 (union ctl_ha_msg *)&io->presio.pr_msg); 12361 free_io = 1; 12362 break; 12363 case CTL_MSG_BAD_JUJU: 12364 free_io = 0; 12365 ctl_done(io); 12366 break; 12367 case CTL_MSG_DATAMOVE: 12368 /* Only used in XFER mode */ 12369 free_io = 0; 12370 ctl_datamove_remote(io); 12371 break; 12372 case CTL_MSG_DATAMOVE_DONE: 12373 /* Only used in XFER mode */ 12374 free_io = 0; 12375 io->scsiio.be_move_done(io); 12376 break; 12377 case CTL_MSG_FAILOVER: 12378 ctl_failover_lun(io); 12379 free_io = 1; 12380 break; 12381 default: 12382 free_io = 1; 12383 printf("%s: Invalid message type %d\n", 12384 __func__, io->io_hdr.msg_type); 12385 break; 12386 } 12387 if (free_io) 12388 ctl_free_io(io); 12389 12390} 12391 12392 12393/* 12394 * Returns the match type in the case of a match, or CTL_LUN_PAT_NONE if 12395 * there is no match. 12396 */ 12397static ctl_lun_error_pattern 12398ctl_cmd_pattern_match(struct ctl_scsiio *ctsio, struct ctl_error_desc *desc) 12399{ 12400 const struct ctl_cmd_entry *entry; 12401 ctl_lun_error_pattern filtered_pattern, pattern; 12402 12403 pattern = desc->error_pattern; 12404 12405 /* 12406 * XXX KDM we need more data passed into this function to match a 12407 * custom pattern, and we actually need to implement custom pattern 12408 * matching. 12409 */ 12410 if (pattern & CTL_LUN_PAT_CMD) 12411 return (CTL_LUN_PAT_CMD); 12412 12413 if ((pattern & CTL_LUN_PAT_MASK) == CTL_LUN_PAT_ANY) 12414 return (CTL_LUN_PAT_ANY); 12415 12416 entry = ctl_get_cmd_entry(ctsio, NULL); 12417 12418 filtered_pattern = entry->pattern & pattern; 12419 12420 /* 12421 * If the user requested specific flags in the pattern (e.g. 12422 * CTL_LUN_PAT_RANGE), make sure the command supports all of those 12423 * flags. 12424 * 12425 * If the user did not specify any flags, it doesn't matter whether 12426 * or not the command supports the flags. 12427 */ 12428 if ((filtered_pattern & ~CTL_LUN_PAT_MASK) != 12429 (pattern & ~CTL_LUN_PAT_MASK)) 12430 return (CTL_LUN_PAT_NONE); 12431 12432 /* 12433 * If the user asked for a range check, see if the requested LBA 12434 * range overlaps with this command's LBA range. 12435 */ 12436 if (filtered_pattern & CTL_LUN_PAT_RANGE) { 12437 uint64_t lba1; 12438 uint64_t len1; 12439 ctl_action action; 12440 int retval; 12441 12442 retval = ctl_get_lba_len((union ctl_io *)ctsio, &lba1, &len1); 12443 if (retval != 0) 12444 return (CTL_LUN_PAT_NONE); 12445 12446 action = ctl_extent_check_lba(lba1, len1, desc->lba_range.lba, 12447 desc->lba_range.len, FALSE); 12448 /* 12449 * A "pass" means that the LBA ranges don't overlap, so 12450 * this doesn't match the user's range criteria. 12451 */ 12452 if (action == CTL_ACTION_PASS) 12453 return (CTL_LUN_PAT_NONE); 12454 } 12455 12456 return (filtered_pattern); 12457} 12458 12459static void 12460ctl_inject_error(struct ctl_lun *lun, union ctl_io *io) 12461{ 12462 struct ctl_error_desc *desc, *desc2; 12463 12464 mtx_assert(&lun->lun_lock, MA_OWNED); 12465 12466 STAILQ_FOREACH_SAFE(desc, &lun->error_list, links, desc2) { 12467 ctl_lun_error_pattern pattern; 12468 /* 12469 * Check to see whether this particular command matches 12470 * the pattern in the descriptor. 12471 */ 12472 pattern = ctl_cmd_pattern_match(&io->scsiio, desc); 12473 if ((pattern & CTL_LUN_PAT_MASK) == CTL_LUN_PAT_NONE) 12474 continue; 12475 12476 switch (desc->lun_error & CTL_LUN_INJ_TYPE) { 12477 case CTL_LUN_INJ_ABORTED: 12478 ctl_set_aborted(&io->scsiio); 12479 break; 12480 case CTL_LUN_INJ_MEDIUM_ERR: 12481 ctl_set_medium_error(&io->scsiio, 12482 (io->io_hdr.flags & CTL_FLAG_DATA_MASK) != 12483 CTL_FLAG_DATA_OUT); 12484 break; 12485 case CTL_LUN_INJ_UA: 12486 /* 29h/00h POWER ON, RESET, OR BUS DEVICE RESET 12487 * OCCURRED */ 12488 ctl_set_ua(&io->scsiio, 0x29, 0x00); 12489 break; 12490 case CTL_LUN_INJ_CUSTOM: 12491 /* 12492 * We're assuming the user knows what he is doing. 12493 * Just copy the sense information without doing 12494 * checks. 12495 */ 12496 bcopy(&desc->custom_sense, &io->scsiio.sense_data, 12497 MIN(sizeof(desc->custom_sense), 12498 sizeof(io->scsiio.sense_data))); 12499 io->scsiio.scsi_status = SCSI_STATUS_CHECK_COND; 12500 io->scsiio.sense_len = SSD_FULL_SIZE; 12501 io->io_hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 12502 break; 12503 case CTL_LUN_INJ_NONE: 12504 default: 12505 /* 12506 * If this is an error injection type we don't know 12507 * about, clear the continuous flag (if it is set) 12508 * so it will get deleted below. 12509 */ 12510 desc->lun_error &= ~CTL_LUN_INJ_CONTINUOUS; 12511 break; 12512 } 12513 /* 12514 * By default, each error injection action is a one-shot 12515 */ 12516 if (desc->lun_error & CTL_LUN_INJ_CONTINUOUS) 12517 continue; 12518 12519 STAILQ_REMOVE(&lun->error_list, desc, ctl_error_desc, links); 12520 12521 free(desc, M_CTL); 12522 } 12523} 12524 12525#ifdef CTL_IO_DELAY 12526static void 12527ctl_datamove_timer_wakeup(void *arg) 12528{ 12529 union ctl_io *io; 12530 12531 io = (union ctl_io *)arg; 12532 12533 ctl_datamove(io); 12534} 12535#endif /* CTL_IO_DELAY */ 12536 12537void 12538ctl_datamove(union ctl_io *io) 12539{ 12540 struct ctl_lun *lun; 12541 void (*fe_datamove)(union ctl_io *io); 12542 12543 mtx_assert(&control_softc->ctl_lock, MA_NOTOWNED); 12544 12545 CTL_DEBUG_PRINT(("ctl_datamove\n")); 12546 12547 lun = (struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 12548#ifdef CTL_TIME_IO 12549 if ((time_uptime - io->io_hdr.start_time) > ctl_time_io_secs) { 12550 char str[256]; 12551 char path_str[64]; 12552 struct sbuf sb; 12553 12554 ctl_scsi_path_string(io, path_str, sizeof(path_str)); 12555 sbuf_new(&sb, str, sizeof(str), SBUF_FIXEDLEN); 12556 12557 sbuf_cat(&sb, path_str); 12558 switch (io->io_hdr.io_type) { 12559 case CTL_IO_SCSI: 12560 ctl_scsi_command_string(&io->scsiio, NULL, &sb); 12561 sbuf_printf(&sb, "\n"); 12562 sbuf_cat(&sb, path_str); 12563 sbuf_printf(&sb, "Tag: 0x%04x, type %d\n", 12564 io->scsiio.tag_num, io->scsiio.tag_type); 12565 break; 12566 case CTL_IO_TASK: 12567 sbuf_printf(&sb, "Task I/O type: %d, Tag: 0x%04x, " 12568 "Tag Type: %d\n", io->taskio.task_action, 12569 io->taskio.tag_num, io->taskio.tag_type); 12570 break; 12571 default: 12572 panic("%s: Invalid CTL I/O type %d\n", 12573 __func__, io->io_hdr.io_type); 12574 } 12575 sbuf_cat(&sb, path_str); 12576 sbuf_printf(&sb, "ctl_datamove: %jd seconds\n", 12577 (intmax_t)time_uptime - io->io_hdr.start_time); 12578 sbuf_finish(&sb); 12579 printf("%s", sbuf_data(&sb)); 12580 } 12581#endif /* CTL_TIME_IO */ 12582 12583#ifdef CTL_IO_DELAY 12584 if (io->io_hdr.flags & CTL_FLAG_DELAY_DONE) { 12585 io->io_hdr.flags &= ~CTL_FLAG_DELAY_DONE; 12586 } else { 12587 if ((lun != NULL) 12588 && (lun->delay_info.datamove_delay > 0)) { 12589 12590 callout_init(&io->io_hdr.delay_callout, /*mpsafe*/ 1); 12591 io->io_hdr.flags |= CTL_FLAG_DELAY_DONE; 12592 callout_reset(&io->io_hdr.delay_callout, 12593 lun->delay_info.datamove_delay * hz, 12594 ctl_datamove_timer_wakeup, io); 12595 if (lun->delay_info.datamove_type == 12596 CTL_DELAY_TYPE_ONESHOT) 12597 lun->delay_info.datamove_delay = 0; 12598 return; 12599 } 12600 } 12601#endif 12602 12603 /* 12604 * This command has been aborted. Set the port status, so we fail 12605 * the data move. 12606 */ 12607 if (io->io_hdr.flags & CTL_FLAG_ABORT) { 12608 printf("ctl_datamove: tag 0x%04x on (%u:%u:%u) aborted\n", 12609 io->scsiio.tag_num, io->io_hdr.nexus.initid, 12610 io->io_hdr.nexus.targ_port, 12611 io->io_hdr.nexus.targ_lun); 12612 io->io_hdr.port_status = 31337; 12613 /* 12614 * Note that the backend, in this case, will get the 12615 * callback in its context. In other cases it may get 12616 * called in the frontend's interrupt thread context. 12617 */ 12618 io->scsiio.be_move_done(io); 12619 return; 12620 } 12621 12622 /* Don't confuse frontend with zero length data move. */ 12623 if (io->scsiio.kern_data_len == 0) { 12624 io->scsiio.be_move_done(io); 12625 return; 12626 } 12627 12628 fe_datamove = ctl_io_port(&io->io_hdr)->fe_datamove; 12629 fe_datamove(io); 12630} 12631 12632static void 12633ctl_send_datamove_done(union ctl_io *io, int have_lock) 12634{ 12635 union ctl_ha_msg msg; 12636#ifdef CTL_TIME_IO 12637 struct bintime cur_bt; 12638#endif 12639 12640 memset(&msg, 0, sizeof(msg)); 12641 msg.hdr.msg_type = CTL_MSG_DATAMOVE_DONE; 12642 msg.hdr.original_sc = io; 12643 msg.hdr.serializing_sc = io->io_hdr.serializing_sc; 12644 msg.hdr.nexus = io->io_hdr.nexus; 12645 msg.hdr.status = io->io_hdr.status; 12646 msg.scsi.tag_num = io->scsiio.tag_num; 12647 msg.scsi.tag_type = io->scsiio.tag_type; 12648 msg.scsi.scsi_status = io->scsiio.scsi_status; 12649 memcpy(&msg.scsi.sense_data, &io->scsiio.sense_data, 12650 io->scsiio.sense_len); 12651 msg.scsi.sense_len = io->scsiio.sense_len; 12652 msg.scsi.sense_residual = io->scsiio.sense_residual; 12653 msg.scsi.fetd_status = io->io_hdr.port_status; 12654 msg.scsi.residual = io->scsiio.residual; 12655 io->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 12656 if (io->io_hdr.flags & CTL_FLAG_FAILOVER) { 12657 ctl_failover_io(io, /*have_lock*/ have_lock); 12658 return; 12659 } 12660 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, 12661 sizeof(msg.scsi) - sizeof(msg.scsi.sense_data) + 12662 msg.scsi.sense_len, M_WAITOK); 12663 12664#ifdef CTL_TIME_IO 12665 getbinuptime(&cur_bt); 12666 bintime_sub(&cur_bt, &io->io_hdr.dma_start_bt); 12667 bintime_add(&io->io_hdr.dma_bt, &cur_bt); 12668#endif 12669 io->io_hdr.num_dmas++; 12670} 12671 12672/* 12673 * The DMA to the remote side is done, now we need to tell the other side 12674 * we're done so it can continue with its data movement. 12675 */ 12676static void 12677ctl_datamove_remote_write_cb(struct ctl_ha_dt_req *rq) 12678{ 12679 union ctl_io *io; 12680 int i; 12681 12682 io = rq->context; 12683 12684 if (rq->ret != CTL_HA_STATUS_SUCCESS) { 12685 printf("%s: ISC DMA write failed with error %d", __func__, 12686 rq->ret); 12687 ctl_set_internal_failure(&io->scsiio, 12688 /*sks_valid*/ 1, 12689 /*retry_count*/ rq->ret); 12690 } 12691 12692 ctl_dt_req_free(rq); 12693 12694 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 12695 free(io->io_hdr.local_sglist[i].addr, M_CTL); 12696 free(io->io_hdr.remote_sglist, M_CTL); 12697 io->io_hdr.remote_sglist = NULL; 12698 io->io_hdr.local_sglist = NULL; 12699 12700 /* 12701 * The data is in local and remote memory, so now we need to send 12702 * status (good or back) back to the other side. 12703 */ 12704 ctl_send_datamove_done(io, /*have_lock*/ 0); 12705} 12706 12707/* 12708 * We've moved the data from the host/controller into local memory. Now we 12709 * need to push it over to the remote controller's memory. 12710 */ 12711static int 12712ctl_datamove_remote_dm_write_cb(union ctl_io *io) 12713{ 12714 int retval; 12715 12716 retval = ctl_datamove_remote_xfer(io, CTL_HA_DT_CMD_WRITE, 12717 ctl_datamove_remote_write_cb); 12718 return (retval); 12719} 12720 12721static void 12722ctl_datamove_remote_write(union ctl_io *io) 12723{ 12724 int retval; 12725 void (*fe_datamove)(union ctl_io *io); 12726 12727 /* 12728 * - Get the data from the host/HBA into local memory. 12729 * - DMA memory from the local controller to the remote controller. 12730 * - Send status back to the remote controller. 12731 */ 12732 12733 retval = ctl_datamove_remote_sgl_setup(io); 12734 if (retval != 0) 12735 return; 12736 12737 /* Switch the pointer over so the FETD knows what to do */ 12738 io->scsiio.kern_data_ptr = (uint8_t *)io->io_hdr.local_sglist; 12739 12740 /* 12741 * Use a custom move done callback, since we need to send completion 12742 * back to the other controller, not to the backend on this side. 12743 */ 12744 io->scsiio.be_move_done = ctl_datamove_remote_dm_write_cb; 12745 12746 fe_datamove = ctl_io_port(&io->io_hdr)->fe_datamove; 12747 fe_datamove(io); 12748} 12749 12750static int 12751ctl_datamove_remote_dm_read_cb(union ctl_io *io) 12752{ 12753#if 0 12754 char str[256]; 12755 char path_str[64]; 12756 struct sbuf sb; 12757#endif 12758 int i; 12759 12760 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 12761 free(io->io_hdr.local_sglist[i].addr, M_CTL); 12762 free(io->io_hdr.remote_sglist, M_CTL); 12763 io->io_hdr.remote_sglist = NULL; 12764 io->io_hdr.local_sglist = NULL; 12765 12766#if 0 12767 scsi_path_string(io, path_str, sizeof(path_str)); 12768 sbuf_new(&sb, str, sizeof(str), SBUF_FIXEDLEN); 12769 sbuf_cat(&sb, path_str); 12770 scsi_command_string(&io->scsiio, NULL, &sb); 12771 sbuf_printf(&sb, "\n"); 12772 sbuf_cat(&sb, path_str); 12773 sbuf_printf(&sb, "Tag: 0x%04x, type %d\n", 12774 io->scsiio.tag_num, io->scsiio.tag_type); 12775 sbuf_cat(&sb, path_str); 12776 sbuf_printf(&sb, "%s: flags %#x, status %#x\n", __func__, 12777 io->io_hdr.flags, io->io_hdr.status); 12778 sbuf_finish(&sb); 12779 printk("%s", sbuf_data(&sb)); 12780#endif 12781 12782 12783 /* 12784 * The read is done, now we need to send status (good or bad) back 12785 * to the other side. 12786 */ 12787 ctl_send_datamove_done(io, /*have_lock*/ 0); 12788 12789 return (0); 12790} 12791 12792static void 12793ctl_datamove_remote_read_cb(struct ctl_ha_dt_req *rq) 12794{ 12795 union ctl_io *io; 12796 void (*fe_datamove)(union ctl_io *io); 12797 12798 io = rq->context; 12799 12800 if (rq->ret != CTL_HA_STATUS_SUCCESS) { 12801 printf("%s: ISC DMA read failed with error %d\n", __func__, 12802 rq->ret); 12803 ctl_set_internal_failure(&io->scsiio, 12804 /*sks_valid*/ 1, 12805 /*retry_count*/ rq->ret); 12806 } 12807 12808 ctl_dt_req_free(rq); 12809 12810 /* Switch the pointer over so the FETD knows what to do */ 12811 io->scsiio.kern_data_ptr = (uint8_t *)io->io_hdr.local_sglist; 12812 12813 /* 12814 * Use a custom move done callback, since we need to send completion 12815 * back to the other controller, not to the backend on this side. 12816 */ 12817 io->scsiio.be_move_done = ctl_datamove_remote_dm_read_cb; 12818 12819 /* XXX KDM add checks like the ones in ctl_datamove? */ 12820 12821 fe_datamove = ctl_io_port(&io->io_hdr)->fe_datamove; 12822 fe_datamove(io); 12823} 12824 12825static int 12826ctl_datamove_remote_sgl_setup(union ctl_io *io) 12827{ 12828 struct ctl_sg_entry *local_sglist; 12829 uint32_t len_to_go; 12830 int retval; 12831 int i; 12832 12833 retval = 0; 12834 local_sglist = io->io_hdr.local_sglist; 12835 len_to_go = io->scsiio.kern_data_len; 12836 12837 /* 12838 * The difficult thing here is that the size of the various 12839 * S/G segments may be different than the size from the 12840 * remote controller. That'll make it harder when DMAing 12841 * the data back to the other side. 12842 */ 12843 for (i = 0; len_to_go > 0; i++) { 12844 local_sglist[i].len = MIN(len_to_go, CTL_HA_DATAMOVE_SEGMENT); 12845 local_sglist[i].addr = 12846 malloc(local_sglist[i].len, M_CTL, M_WAITOK); 12847 12848 len_to_go -= local_sglist[i].len; 12849 } 12850 /* 12851 * Reset the number of S/G entries accordingly. The original 12852 * number of S/G entries is available in rem_sg_entries. 12853 */ 12854 io->scsiio.kern_sg_entries = i; 12855 12856#if 0 12857 printf("%s: kern_sg_entries = %d\n", __func__, 12858 io->scsiio.kern_sg_entries); 12859 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 12860 printf("%s: sg[%d] = %p, %lu\n", __func__, i, 12861 local_sglist[i].addr, local_sglist[i].len); 12862#endif 12863 12864 return (retval); 12865} 12866 12867static int 12868ctl_datamove_remote_xfer(union ctl_io *io, unsigned command, 12869 ctl_ha_dt_cb callback) 12870{ 12871 struct ctl_ha_dt_req *rq; 12872 struct ctl_sg_entry *remote_sglist, *local_sglist; 12873 uint32_t local_used, remote_used, total_used; 12874 int i, j, isc_ret; 12875 12876 rq = ctl_dt_req_alloc(); 12877 12878 /* 12879 * If we failed to allocate the request, and if the DMA didn't fail 12880 * anyway, set busy status. This is just a resource allocation 12881 * failure. 12882 */ 12883 if ((rq == NULL) 12884 && ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE && 12885 (io->io_hdr.status & CTL_STATUS_MASK) != CTL_SUCCESS)) 12886 ctl_set_busy(&io->scsiio); 12887 12888 if ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE && 12889 (io->io_hdr.status & CTL_STATUS_MASK) != CTL_SUCCESS) { 12890 12891 if (rq != NULL) 12892 ctl_dt_req_free(rq); 12893 12894 /* 12895 * The data move failed. We need to return status back 12896 * to the other controller. No point in trying to DMA 12897 * data to the remote controller. 12898 */ 12899 12900 ctl_send_datamove_done(io, /*have_lock*/ 0); 12901 12902 return (1); 12903 } 12904 12905 local_sglist = io->io_hdr.local_sglist; 12906 remote_sglist = io->io_hdr.remote_sglist; 12907 local_used = 0; 12908 remote_used = 0; 12909 total_used = 0; 12910 12911 /* 12912 * Pull/push the data over the wire from/to the other controller. 12913 * This takes into account the possibility that the local and 12914 * remote sglists may not be identical in terms of the size of 12915 * the elements and the number of elements. 12916 * 12917 * One fundamental assumption here is that the length allocated for 12918 * both the local and remote sglists is identical. Otherwise, we've 12919 * essentially got a coding error of some sort. 12920 */ 12921 isc_ret = CTL_HA_STATUS_SUCCESS; 12922 for (i = 0, j = 0; total_used < io->scsiio.kern_data_len; ) { 12923 uint32_t cur_len; 12924 uint8_t *tmp_ptr; 12925 12926 rq->command = command; 12927 rq->context = io; 12928 12929 /* 12930 * Both pointers should be aligned. But it is possible 12931 * that the allocation length is not. They should both 12932 * also have enough slack left over at the end, though, 12933 * to round up to the next 8 byte boundary. 12934 */ 12935 cur_len = MIN(local_sglist[i].len - local_used, 12936 remote_sglist[j].len - remote_used); 12937 rq->size = cur_len; 12938 12939 tmp_ptr = (uint8_t *)local_sglist[i].addr; 12940 tmp_ptr += local_used; 12941 12942#if 0 12943 /* Use physical addresses when talking to ISC hardware */ 12944 if ((io->io_hdr.flags & CTL_FLAG_BUS_ADDR) == 0) { 12945 /* XXX KDM use busdma */ 12946 rq->local = vtophys(tmp_ptr); 12947 } else 12948 rq->local = tmp_ptr; 12949#else 12950 KASSERT((io->io_hdr.flags & CTL_FLAG_BUS_ADDR) == 0, 12951 ("HA does not support BUS_ADDR")); 12952 rq->local = tmp_ptr; 12953#endif 12954 12955 tmp_ptr = (uint8_t *)remote_sglist[j].addr; 12956 tmp_ptr += remote_used; 12957 rq->remote = tmp_ptr; 12958 12959 rq->callback = NULL; 12960 12961 local_used += cur_len; 12962 if (local_used >= local_sglist[i].len) { 12963 i++; 12964 local_used = 0; 12965 } 12966 12967 remote_used += cur_len; 12968 if (remote_used >= remote_sglist[j].len) { 12969 j++; 12970 remote_used = 0; 12971 } 12972 total_used += cur_len; 12973 12974 if (total_used >= io->scsiio.kern_data_len) 12975 rq->callback = callback; 12976 12977#if 0 12978 printf("%s: %s: local %p remote %p size %d\n", __func__, 12979 (command == CTL_HA_DT_CMD_WRITE) ? "WRITE" : "READ", 12980 rq->local, rq->remote, rq->size); 12981#endif 12982 12983 isc_ret = ctl_dt_single(rq); 12984 if (isc_ret > CTL_HA_STATUS_SUCCESS) 12985 break; 12986 } 12987 if (isc_ret != CTL_HA_STATUS_WAIT) { 12988 rq->ret = isc_ret; 12989 callback(rq); 12990 } 12991 12992 return (0); 12993} 12994 12995static void 12996ctl_datamove_remote_read(union ctl_io *io) 12997{ 12998 int retval; 12999 int i; 13000 13001 /* 13002 * This will send an error to the other controller in the case of a 13003 * failure. 13004 */ 13005 retval = ctl_datamove_remote_sgl_setup(io); 13006 if (retval != 0) 13007 return; 13008 13009 retval = ctl_datamove_remote_xfer(io, CTL_HA_DT_CMD_READ, 13010 ctl_datamove_remote_read_cb); 13011 if (retval != 0) { 13012 /* 13013 * Make sure we free memory if there was an error.. The 13014 * ctl_datamove_remote_xfer() function will send the 13015 * datamove done message, or call the callback with an 13016 * error if there is a problem. 13017 */ 13018 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 13019 free(io->io_hdr.local_sglist[i].addr, M_CTL); 13020 free(io->io_hdr.remote_sglist, M_CTL); 13021 io->io_hdr.remote_sglist = NULL; 13022 io->io_hdr.local_sglist = NULL; 13023 } 13024} 13025 13026/* 13027 * Process a datamove request from the other controller. This is used for 13028 * XFER mode only, not SER_ONLY mode. For writes, we DMA into local memory 13029 * first. Once that is complete, the data gets DMAed into the remote 13030 * controller's memory. For reads, we DMA from the remote controller's 13031 * memory into our memory first, and then move it out to the FETD. 13032 */ 13033static void 13034ctl_datamove_remote(union ctl_io *io) 13035{ 13036 13037 mtx_assert(&control_softc->ctl_lock, MA_NOTOWNED); 13038 13039 if (io->io_hdr.flags & CTL_FLAG_FAILOVER) { 13040 ctl_failover_io(io, /*have_lock*/ 0); 13041 return; 13042 } 13043 13044 /* 13045 * Note that we look for an aborted I/O here, but don't do some of 13046 * the other checks that ctl_datamove() normally does. 13047 * We don't need to run the datamove delay code, since that should 13048 * have been done if need be on the other controller. 13049 */ 13050 if (io->io_hdr.flags & CTL_FLAG_ABORT) { 13051 printf("%s: tag 0x%04x on (%u:%u:%u) aborted\n", __func__, 13052 io->scsiio.tag_num, io->io_hdr.nexus.initid, 13053 io->io_hdr.nexus.targ_port, 13054 io->io_hdr.nexus.targ_lun); 13055 io->io_hdr.port_status = 31338; 13056 ctl_send_datamove_done(io, /*have_lock*/ 0); 13057 return; 13058 } 13059 13060 if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_OUT) 13061 ctl_datamove_remote_write(io); 13062 else if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_IN) 13063 ctl_datamove_remote_read(io); 13064 else { 13065 io->io_hdr.port_status = 31339; 13066 ctl_send_datamove_done(io, /*have_lock*/ 0); 13067 } 13068} 13069 13070static void 13071ctl_process_done(union ctl_io *io) 13072{ 13073 struct ctl_lun *lun; 13074 struct ctl_softc *softc = control_softc; 13075 void (*fe_done)(union ctl_io *io); 13076 union ctl_ha_msg msg; 13077 uint32_t targ_port = io->io_hdr.nexus.targ_port; 13078 13079 CTL_DEBUG_PRINT(("ctl_process_done\n")); 13080 fe_done = softc->ctl_ports[targ_port]->fe_done; 13081 13082#ifdef CTL_TIME_IO 13083 if ((time_uptime - io->io_hdr.start_time) > ctl_time_io_secs) { 13084 char str[256]; 13085 char path_str[64]; 13086 struct sbuf sb; 13087 13088 ctl_scsi_path_string(io, path_str, sizeof(path_str)); 13089 sbuf_new(&sb, str, sizeof(str), SBUF_FIXEDLEN); 13090 13091 sbuf_cat(&sb, path_str); 13092 switch (io->io_hdr.io_type) { 13093 case CTL_IO_SCSI: 13094 ctl_scsi_command_string(&io->scsiio, NULL, &sb); 13095 sbuf_printf(&sb, "\n"); 13096 sbuf_cat(&sb, path_str); 13097 sbuf_printf(&sb, "Tag: 0x%04x, type %d\n", 13098 io->scsiio.tag_num, io->scsiio.tag_type); 13099 break; 13100 case CTL_IO_TASK: 13101 sbuf_printf(&sb, "Task I/O type: %d, Tag: 0x%04x, " 13102 "Tag Type: %d\n", io->taskio.task_action, 13103 io->taskio.tag_num, io->taskio.tag_type); 13104 break; 13105 default: 13106 panic("%s: Invalid CTL I/O type %d\n", 13107 __func__, io->io_hdr.io_type); 13108 } 13109 sbuf_cat(&sb, path_str); 13110 sbuf_printf(&sb, "ctl_process_done: %jd seconds\n", 13111 (intmax_t)time_uptime - io->io_hdr.start_time); 13112 sbuf_finish(&sb); 13113 printf("%s", sbuf_data(&sb)); 13114 } 13115#endif /* CTL_TIME_IO */ 13116 13117 switch (io->io_hdr.io_type) { 13118 case CTL_IO_SCSI: 13119 break; 13120 case CTL_IO_TASK: 13121 if (ctl_debug & CTL_DEBUG_INFO) 13122 ctl_io_error_print(io, NULL); 13123 fe_done(io); 13124 return; 13125 default: 13126 panic("%s: Invalid CTL I/O type %d\n", 13127 __func__, io->io_hdr.io_type); 13128 } 13129 13130 lun = (struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 13131 if (lun == NULL) { 13132 CTL_DEBUG_PRINT(("NULL LUN for lun %d\n", 13133 io->io_hdr.nexus.targ_mapped_lun)); 13134 goto bailout; 13135 } 13136 13137 mtx_lock(&lun->lun_lock); 13138 13139 /* 13140 * Check to see if we have any errors to inject here. We only 13141 * inject errors for commands that don't already have errors set. 13142 */ 13143 if (!STAILQ_EMPTY(&lun->error_list) && 13144 ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS) && 13145 ((io->io_hdr.flags & CTL_FLAG_STATUS_SENT) == 0)) 13146 ctl_inject_error(lun, io); 13147 13148 /* 13149 * XXX KDM how do we treat commands that aren't completed 13150 * successfully? 13151 * 13152 * XXX KDM should we also track I/O latency? 13153 */ 13154 if ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS && 13155 io->io_hdr.io_type == CTL_IO_SCSI) { 13156#ifdef CTL_TIME_IO 13157 struct bintime cur_bt; 13158#endif 13159 int type; 13160 13161 if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == 13162 CTL_FLAG_DATA_IN) 13163 type = CTL_STATS_READ; 13164 else if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == 13165 CTL_FLAG_DATA_OUT) 13166 type = CTL_STATS_WRITE; 13167 else 13168 type = CTL_STATS_NO_IO; 13169 13170 lun->stats.ports[targ_port].bytes[type] += 13171 io->scsiio.kern_total_len; 13172 lun->stats.ports[targ_port].operations[type]++; 13173#ifdef CTL_TIME_IO 13174 bintime_add(&lun->stats.ports[targ_port].dma_time[type], 13175 &io->io_hdr.dma_bt); 13176 getbinuptime(&cur_bt); 13177 bintime_sub(&cur_bt, &io->io_hdr.start_bt); 13178 bintime_add(&lun->stats.ports[targ_port].time[type], &cur_bt); 13179#endif 13180 lun->stats.ports[targ_port].num_dmas[type] += 13181 io->io_hdr.num_dmas; 13182 } 13183 13184 /* 13185 * Remove this from the OOA queue. 13186 */ 13187 TAILQ_REMOVE(&lun->ooa_queue, &io->io_hdr, ooa_links); 13188#ifdef CTL_TIME_IO 13189 if (TAILQ_EMPTY(&lun->ooa_queue)) 13190 lun->last_busy = getsbinuptime(); 13191#endif 13192 13193 /* 13194 * Run through the blocked queue on this LUN and see if anything 13195 * has become unblocked, now that this transaction is done. 13196 */ 13197 ctl_check_blocked(lun); 13198 13199 /* 13200 * If the LUN has been invalidated, free it if there is nothing 13201 * left on its OOA queue. 13202 */ 13203 if ((lun->flags & CTL_LUN_INVALID) 13204 && TAILQ_EMPTY(&lun->ooa_queue)) { 13205 mtx_unlock(&lun->lun_lock); 13206 mtx_lock(&softc->ctl_lock); 13207 ctl_free_lun(lun); 13208 mtx_unlock(&softc->ctl_lock); 13209 } else 13210 mtx_unlock(&lun->lun_lock); 13211 13212bailout: 13213 13214 /* 13215 * If this command has been aborted, make sure we set the status 13216 * properly. The FETD is responsible for freeing the I/O and doing 13217 * whatever it needs to do to clean up its state. 13218 */ 13219 if (io->io_hdr.flags & CTL_FLAG_ABORT) 13220 ctl_set_task_aborted(&io->scsiio); 13221 13222 /* 13223 * If enabled, print command error status. 13224 */ 13225 if ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_SUCCESS && 13226 (ctl_debug & CTL_DEBUG_INFO) != 0) 13227 ctl_io_error_print(io, NULL); 13228 13229 /* 13230 * Tell the FETD or the other shelf controller we're done with this 13231 * command. Note that only SCSI commands get to this point. Task 13232 * management commands are completed above. 13233 */ 13234 if ((softc->ha_mode != CTL_HA_MODE_XFER) && 13235 (io->io_hdr.flags & CTL_FLAG_SENT_2OTHER_SC)) { 13236 memset(&msg, 0, sizeof(msg)); 13237 msg.hdr.msg_type = CTL_MSG_FINISH_IO; 13238 msg.hdr.serializing_sc = io->io_hdr.serializing_sc; 13239 msg.hdr.nexus = io->io_hdr.nexus; 13240 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, 13241 sizeof(msg.scsi) - sizeof(msg.scsi.sense_data), 13242 M_WAITOK); 13243 } 13244 13245 fe_done(io); 13246} 13247 13248#ifdef CTL_WITH_CA 13249/* 13250 * Front end should call this if it doesn't do autosense. When the request 13251 * sense comes back in from the initiator, we'll dequeue this and send it. 13252 */ 13253int 13254ctl_queue_sense(union ctl_io *io) 13255{ 13256 struct ctl_lun *lun; 13257 struct ctl_port *port; 13258 struct ctl_softc *softc; 13259 uint32_t initidx, targ_lun; 13260 13261 softc = control_softc; 13262 13263 CTL_DEBUG_PRINT(("ctl_queue_sense\n")); 13264 13265 /* 13266 * LUN lookup will likely move to the ctl_work_thread() once we 13267 * have our new queueing infrastructure (that doesn't put things on 13268 * a per-LUN queue initially). That is so that we can handle 13269 * things like an INQUIRY to a LUN that we don't have enabled. We 13270 * can't deal with that right now. 13271 */ 13272 mtx_lock(&softc->ctl_lock); 13273 13274 /* 13275 * If we don't have a LUN for this, just toss the sense 13276 * information. 13277 */ 13278 port = ctl_io_port(&ctsio->io_hdr); 13279 targ_lun = ctl_lun_map_from_port(port, io->io_hdr.nexus.targ_lun); 13280 if ((targ_lun < CTL_MAX_LUNS) 13281 && (softc->ctl_luns[targ_lun] != NULL)) 13282 lun = softc->ctl_luns[targ_lun]; 13283 else 13284 goto bailout; 13285 13286 initidx = ctl_get_initindex(&io->io_hdr.nexus); 13287 13288 mtx_lock(&lun->lun_lock); 13289 /* 13290 * Already have CA set for this LUN...toss the sense information. 13291 */ 13292 if (ctl_is_set(lun->have_ca, initidx)) { 13293 mtx_unlock(&lun->lun_lock); 13294 goto bailout; 13295 } 13296 13297 memcpy(&lun->pending_sense[initidx], &io->scsiio.sense_data, 13298 MIN(sizeof(lun->pending_sense[initidx]), 13299 sizeof(io->scsiio.sense_data))); 13300 ctl_set_mask(lun->have_ca, initidx); 13301 mtx_unlock(&lun->lun_lock); 13302 13303bailout: 13304 mtx_unlock(&softc->ctl_lock); 13305 13306 ctl_free_io(io); 13307 13308 return (CTL_RETVAL_COMPLETE); 13309} 13310#endif 13311 13312/* 13313 * Primary command inlet from frontend ports. All SCSI and task I/O 13314 * requests must go through this function. 13315 */ 13316int 13317ctl_queue(union ctl_io *io) 13318{ 13319 struct ctl_port *port; 13320 13321 CTL_DEBUG_PRINT(("ctl_queue cdb[0]=%02X\n", io->scsiio.cdb[0])); 13322 13323#ifdef CTL_TIME_IO 13324 io->io_hdr.start_time = time_uptime; 13325 getbinuptime(&io->io_hdr.start_bt); 13326#endif /* CTL_TIME_IO */ 13327 13328 /* Map FE-specific LUN ID into global one. */ 13329 port = ctl_io_port(&io->io_hdr); 13330 io->io_hdr.nexus.targ_mapped_lun = 13331 ctl_lun_map_from_port(port, io->io_hdr.nexus.targ_lun); 13332 13333 switch (io->io_hdr.io_type) { 13334 case CTL_IO_SCSI: 13335 case CTL_IO_TASK: 13336 if (ctl_debug & CTL_DEBUG_CDB) 13337 ctl_io_print(io); 13338 ctl_enqueue_incoming(io); 13339 break; 13340 default: 13341 printf("ctl_queue: unknown I/O type %d\n", io->io_hdr.io_type); 13342 return (EINVAL); 13343 } 13344 13345 return (CTL_RETVAL_COMPLETE); 13346} 13347 13348#ifdef CTL_IO_DELAY 13349static void 13350ctl_done_timer_wakeup(void *arg) 13351{ 13352 union ctl_io *io; 13353 13354 io = (union ctl_io *)arg; 13355 ctl_done(io); 13356} 13357#endif /* CTL_IO_DELAY */ 13358 13359void 13360ctl_serseq_done(union ctl_io *io) 13361{ 13362 struct ctl_lun *lun; 13363 13364 lun = (struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 13365 if (lun->be_lun == NULL || 13366 lun->be_lun->serseq == CTL_LUN_SERSEQ_OFF) 13367 return; 13368 mtx_lock(&lun->lun_lock); 13369 io->io_hdr.flags |= CTL_FLAG_SERSEQ_DONE; 13370 ctl_check_blocked(lun); 13371 mtx_unlock(&lun->lun_lock); 13372} 13373 13374void 13375ctl_done(union ctl_io *io) 13376{ 13377 13378 /* 13379 * Enable this to catch duplicate completion issues. 13380 */ 13381#if 0 13382 if (io->io_hdr.flags & CTL_FLAG_ALREADY_DONE) { 13383 printf("%s: type %d msg %d cdb %x iptl: " 13384 "%u:%u:%u tag 0x%04x " 13385 "flag %#x status %x\n", 13386 __func__, 13387 io->io_hdr.io_type, 13388 io->io_hdr.msg_type, 13389 io->scsiio.cdb[0], 13390 io->io_hdr.nexus.initid, 13391 io->io_hdr.nexus.targ_port, 13392 io->io_hdr.nexus.targ_lun, 13393 (io->io_hdr.io_type == 13394 CTL_IO_TASK) ? 13395 io->taskio.tag_num : 13396 io->scsiio.tag_num, 13397 io->io_hdr.flags, 13398 io->io_hdr.status); 13399 } else 13400 io->io_hdr.flags |= CTL_FLAG_ALREADY_DONE; 13401#endif 13402 13403 /* 13404 * This is an internal copy of an I/O, and should not go through 13405 * the normal done processing logic. 13406 */ 13407 if (io->io_hdr.flags & CTL_FLAG_INT_COPY) 13408 return; 13409 13410#ifdef CTL_IO_DELAY 13411 if (io->io_hdr.flags & CTL_FLAG_DELAY_DONE) { 13412 struct ctl_lun *lun; 13413 13414 lun =(struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 13415 13416 io->io_hdr.flags &= ~CTL_FLAG_DELAY_DONE; 13417 } else { 13418 struct ctl_lun *lun; 13419 13420 lun =(struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 13421 13422 if ((lun != NULL) 13423 && (lun->delay_info.done_delay > 0)) { 13424 13425 callout_init(&io->io_hdr.delay_callout, /*mpsafe*/ 1); 13426 io->io_hdr.flags |= CTL_FLAG_DELAY_DONE; 13427 callout_reset(&io->io_hdr.delay_callout, 13428 lun->delay_info.done_delay * hz, 13429 ctl_done_timer_wakeup, io); 13430 if (lun->delay_info.done_type == CTL_DELAY_TYPE_ONESHOT) 13431 lun->delay_info.done_delay = 0; 13432 return; 13433 } 13434 } 13435#endif /* CTL_IO_DELAY */ 13436 13437 ctl_enqueue_done(io); 13438} 13439 13440static void 13441ctl_work_thread(void *arg) 13442{ 13443 struct ctl_thread *thr = (struct ctl_thread *)arg; 13444 struct ctl_softc *softc = thr->ctl_softc; 13445 union ctl_io *io; 13446 int retval; 13447 13448 CTL_DEBUG_PRINT(("ctl_work_thread starting\n")); 13449 13450 for (;;) { 13451 /* 13452 * We handle the queues in this order: 13453 * - ISC 13454 * - done queue (to free up resources, unblock other commands) 13455 * - RtR queue 13456 * - incoming queue 13457 * 13458 * If those queues are empty, we break out of the loop and 13459 * go to sleep. 13460 */ 13461 mtx_lock(&thr->queue_lock); 13462 io = (union ctl_io *)STAILQ_FIRST(&thr->isc_queue); 13463 if (io != NULL) { 13464 STAILQ_REMOVE_HEAD(&thr->isc_queue, links); 13465 mtx_unlock(&thr->queue_lock); 13466 ctl_handle_isc(io); 13467 continue; 13468 } 13469 io = (union ctl_io *)STAILQ_FIRST(&thr->done_queue); 13470 if (io != NULL) { 13471 STAILQ_REMOVE_HEAD(&thr->done_queue, links); 13472 /* clear any blocked commands, call fe_done */ 13473 mtx_unlock(&thr->queue_lock); 13474 ctl_process_done(io); 13475 continue; 13476 } 13477 io = (union ctl_io *)STAILQ_FIRST(&thr->incoming_queue); 13478 if (io != NULL) { 13479 STAILQ_REMOVE_HEAD(&thr->incoming_queue, links); 13480 mtx_unlock(&thr->queue_lock); 13481 if (io->io_hdr.io_type == CTL_IO_TASK) 13482 ctl_run_task(io); 13483 else 13484 ctl_scsiio_precheck(softc, &io->scsiio); 13485 continue; 13486 } 13487 io = (union ctl_io *)STAILQ_FIRST(&thr->rtr_queue); 13488 if (io != NULL) { 13489 STAILQ_REMOVE_HEAD(&thr->rtr_queue, links); 13490 mtx_unlock(&thr->queue_lock); 13491 retval = ctl_scsiio(&io->scsiio); 13492 if (retval != CTL_RETVAL_COMPLETE) 13493 CTL_DEBUG_PRINT(("ctl_scsiio failed\n")); 13494 continue; 13495 } 13496 13497 /* Sleep until we have something to do. */ 13498 mtx_sleep(thr, &thr->queue_lock, PDROP | PRIBIO, "-", 0); 13499 } 13500} 13501 13502static void 13503ctl_lun_thread(void *arg) 13504{ 13505 struct ctl_softc *softc = (struct ctl_softc *)arg; 13506 struct ctl_be_lun *be_lun; 13507 13508 CTL_DEBUG_PRINT(("ctl_lun_thread starting\n")); 13509 13510 for (;;) { 13511 mtx_lock(&softc->ctl_lock); 13512 be_lun = STAILQ_FIRST(&softc->pending_lun_queue); 13513 if (be_lun != NULL) { 13514 STAILQ_REMOVE_HEAD(&softc->pending_lun_queue, links); 13515 mtx_unlock(&softc->ctl_lock); 13516 ctl_create_lun(be_lun); 13517 continue; 13518 } 13519 13520 /* Sleep until we have something to do. */ 13521 mtx_sleep(&softc->pending_lun_queue, &softc->ctl_lock, 13522 PDROP | PRIBIO, "-", 0); 13523 } 13524} 13525 13526static void 13527ctl_thresh_thread(void *arg) 13528{ 13529 struct ctl_softc *softc = (struct ctl_softc *)arg; 13530 struct ctl_lun *lun; 13531 struct scsi_da_rw_recovery_page *rwpage; 13532 struct ctl_logical_block_provisioning_page *page; 13533 const char *attr; 13534 union ctl_ha_msg msg; 13535 uint64_t thres, val; 13536 int i, e, set; 13537 13538 CTL_DEBUG_PRINT(("ctl_thresh_thread starting\n")); 13539 13540 for (;;) { 13541 mtx_lock(&softc->ctl_lock); 13542 STAILQ_FOREACH(lun, &softc->lun_list, links) { 13543 if ((lun->flags & CTL_LUN_DISABLED) || 13544 (lun->flags & CTL_LUN_NO_MEDIA) || 13545 lun->backend->lun_attr == NULL) 13546 continue; 13547 if ((lun->flags & CTL_LUN_PRIMARY_SC) == 0 && 13548 softc->ha_mode == CTL_HA_MODE_XFER) 13549 continue; 13550 rwpage = &lun->mode_pages.rw_er_page[CTL_PAGE_CURRENT]; 13551 if ((rwpage->byte8 & SMS_RWER_LBPERE) == 0) 13552 continue; 13553 e = 0; 13554 page = &lun->mode_pages.lbp_page[CTL_PAGE_CURRENT]; 13555 for (i = 0; i < CTL_NUM_LBP_THRESH; i++) { 13556 if ((page->descr[i].flags & SLBPPD_ENABLED) == 0) 13557 continue; 13558 thres = scsi_4btoul(page->descr[i].count); 13559 thres <<= CTL_LBP_EXPONENT; 13560 switch (page->descr[i].resource) { 13561 case 0x01: 13562 attr = "blocksavail"; 13563 break; 13564 case 0x02: 13565 attr = "blocksused"; 13566 break; 13567 case 0xf1: 13568 attr = "poolblocksavail"; 13569 break; 13570 case 0xf2: 13571 attr = "poolblocksused"; 13572 break; 13573 default: 13574 continue; 13575 } 13576 mtx_unlock(&softc->ctl_lock); // XXX 13577 val = lun->backend->lun_attr( 13578 lun->be_lun->be_lun, attr); 13579 mtx_lock(&softc->ctl_lock); 13580 if (val == UINT64_MAX) 13581 continue; 13582 if ((page->descr[i].flags & SLBPPD_ARMING_MASK) 13583 == SLBPPD_ARMING_INC) 13584 e = (val >= thres); 13585 else 13586 e = (val <= thres); 13587 if (e) 13588 break; 13589 } 13590 mtx_lock(&lun->lun_lock); 13591 if (e) { 13592 scsi_u64to8b((uint8_t *)&page->descr[i] - 13593 (uint8_t *)page, lun->ua_tpt_info); 13594 if (lun->lasttpt == 0 || 13595 time_uptime - lun->lasttpt >= CTL_LBP_UA_PERIOD) { 13596 lun->lasttpt = time_uptime; 13597 ctl_est_ua_all(lun, -1, CTL_UA_THIN_PROV_THRES); 13598 set = 1; 13599 } else 13600 set = 0; 13601 } else { 13602 lun->lasttpt = 0; 13603 ctl_clr_ua_all(lun, -1, CTL_UA_THIN_PROV_THRES); 13604 set = -1; 13605 } 13606 mtx_unlock(&lun->lun_lock); 13607 if (set != 0 && 13608 lun->ctl_softc->ha_mode == CTL_HA_MODE_XFER) { 13609 /* Send msg to other side. */ 13610 bzero(&msg.ua, sizeof(msg.ua)); 13611 msg.hdr.msg_type = CTL_MSG_UA; 13612 msg.hdr.nexus.initid = -1; 13613 msg.hdr.nexus.targ_port = -1; 13614 msg.hdr.nexus.targ_lun = lun->lun; 13615 msg.hdr.nexus.targ_mapped_lun = lun->lun; 13616 msg.ua.ua_all = 1; 13617 msg.ua.ua_set = (set > 0); 13618 msg.ua.ua_type = CTL_UA_THIN_PROV_THRES; 13619 memcpy(msg.ua.ua_info, lun->ua_tpt_info, 8); 13620 mtx_unlock(&softc->ctl_lock); // XXX 13621 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, 13622 sizeof(msg.ua), M_WAITOK); 13623 mtx_lock(&softc->ctl_lock); 13624 } 13625 } 13626 mtx_unlock(&softc->ctl_lock); 13627 pause("-", CTL_LBP_PERIOD * hz); 13628 } 13629} 13630 13631static void 13632ctl_enqueue_incoming(union ctl_io *io) 13633{ 13634 struct ctl_softc *softc = control_softc; 13635 struct ctl_thread *thr; 13636 u_int idx; 13637 13638 idx = (io->io_hdr.nexus.targ_port * 127 + 13639 io->io_hdr.nexus.initid) % worker_threads; 13640 thr = &softc->threads[idx]; 13641 mtx_lock(&thr->queue_lock); 13642 STAILQ_INSERT_TAIL(&thr->incoming_queue, &io->io_hdr, links); 13643 mtx_unlock(&thr->queue_lock); 13644 wakeup(thr); 13645} 13646 13647static void 13648ctl_enqueue_rtr(union ctl_io *io) 13649{ 13650 struct ctl_softc *softc = control_softc; 13651 struct ctl_thread *thr; 13652 13653 thr = &softc->threads[io->io_hdr.nexus.targ_mapped_lun % worker_threads]; 13654 mtx_lock(&thr->queue_lock); 13655 STAILQ_INSERT_TAIL(&thr->rtr_queue, &io->io_hdr, links); 13656 mtx_unlock(&thr->queue_lock); 13657 wakeup(thr); 13658} 13659 13660static void 13661ctl_enqueue_done(union ctl_io *io) 13662{ 13663 struct ctl_softc *softc = control_softc; 13664 struct ctl_thread *thr; 13665 13666 thr = &softc->threads[io->io_hdr.nexus.targ_mapped_lun % worker_threads]; 13667 mtx_lock(&thr->queue_lock); 13668 STAILQ_INSERT_TAIL(&thr->done_queue, &io->io_hdr, links); 13669 mtx_unlock(&thr->queue_lock); 13670 wakeup(thr); 13671} 13672 13673static void 13674ctl_enqueue_isc(union ctl_io *io) 13675{ 13676 struct ctl_softc *softc = control_softc; 13677 struct ctl_thread *thr; 13678 13679 thr = &softc->threads[io->io_hdr.nexus.targ_mapped_lun % worker_threads]; 13680 mtx_lock(&thr->queue_lock); 13681 STAILQ_INSERT_TAIL(&thr->isc_queue, &io->io_hdr, links); 13682 mtx_unlock(&thr->queue_lock); 13683 wakeup(thr); 13684} 13685 13686/* 13687 * vim: ts=8 13688 */ 13689