ctl.c revision 288812
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 288812 2015-10-05 11:38:51Z 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->PRGeneration; 787 msg->lun.pr_res_idx = lun->pr_res_idx; 788 msg->lun.pr_res_type = lun->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 bzero(&msg.mode, sizeof(msg.mode)); 933 msg.hdr.msg_type = CTL_MSG_MODE_SYNC; 934 msg.hdr.nexus.targ_port = initidx / CTL_MAX_INIT_PER_PORT; 935 msg.hdr.nexus.initid = initidx % CTL_MAX_INIT_PER_PORT; 936 msg.hdr.nexus.targ_lun = lun->lun; 937 msg.hdr.nexus.targ_mapped_lun = lun->lun; 938 msg.mode.page_code = page; 939 msg.mode.subpage = subpage; 940 msg.mode.page_len = lun->mode_pages.index[i].page_len; 941 memcpy(msg.mode.data, lun->mode_pages.index[i].page_data, 942 msg.mode.page_len); 943 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg.mode, sizeof(msg.mode), 944 M_WAITOK); 945} 946 947static void 948ctl_isc_ha_link_up(struct ctl_softc *softc) 949{ 950 struct ctl_port *port; 951 struct ctl_lun *lun; 952 union ctl_ha_msg msg; 953 int i; 954 955 /* Announce this node parameters to peer for validation. */ 956 msg.login.msg_type = CTL_MSG_LOGIN; 957 msg.login.version = CTL_HA_VERSION; 958 msg.login.ha_mode = softc->ha_mode; 959 msg.login.ha_id = softc->ha_id; 960 msg.login.max_luns = CTL_MAX_LUNS; 961 msg.login.max_ports = CTL_MAX_PORTS; 962 msg.login.max_init_per_port = CTL_MAX_INIT_PER_PORT; 963 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg.login, sizeof(msg.login), 964 M_WAITOK); 965 966 STAILQ_FOREACH(port, &softc->port_list, links) { 967 ctl_isc_announce_port(port); 968 for (i = 0; i < CTL_MAX_INIT_PER_PORT; i++) { 969 if (port->wwpn_iid[i].in_use) 970 ctl_isc_announce_iid(port, i); 971 } 972 } 973 STAILQ_FOREACH(lun, &softc->lun_list, links) 974 ctl_isc_announce_lun(lun); 975} 976 977static void 978ctl_isc_ha_link_down(struct ctl_softc *softc) 979{ 980 struct ctl_port *port; 981 struct ctl_lun *lun; 982 union ctl_io *io; 983 int i; 984 985 mtx_lock(&softc->ctl_lock); 986 STAILQ_FOREACH(lun, &softc->lun_list, links) { 987 mtx_lock(&lun->lun_lock); 988 if (lun->flags & CTL_LUN_PEER_SC_PRIMARY) { 989 lun->flags &= ~CTL_LUN_PEER_SC_PRIMARY; 990 ctl_est_ua_all(lun, -1, CTL_UA_ASYM_ACC_CHANGE); 991 } 992 mtx_unlock(&lun->lun_lock); 993 994 mtx_unlock(&softc->ctl_lock); 995 io = ctl_alloc_io(softc->othersc_pool); 996 mtx_lock(&softc->ctl_lock); 997 ctl_zero_io(io); 998 io->io_hdr.msg_type = CTL_MSG_FAILOVER; 999 io->io_hdr.nexus.targ_mapped_lun = lun->lun; 1000 ctl_enqueue_isc(io); 1001 } 1002 1003 STAILQ_FOREACH(port, &softc->port_list, links) { 1004 if (port->targ_port >= softc->port_min && 1005 port->targ_port < softc->port_max) 1006 continue; 1007 port->status &= ~CTL_PORT_STATUS_ONLINE; 1008 for (i = 0; i < CTL_MAX_INIT_PER_PORT; i++) { 1009 port->wwpn_iid[i].in_use = 0; 1010 free(port->wwpn_iid[i].name, M_CTL); 1011 port->wwpn_iid[i].name = NULL; 1012 } 1013 } 1014 mtx_unlock(&softc->ctl_lock); 1015} 1016 1017static void 1018ctl_isc_ua(struct ctl_softc *softc, union ctl_ha_msg *msg, int len) 1019{ 1020 struct ctl_lun *lun; 1021 uint32_t iid = ctl_get_initindex(&msg->hdr.nexus); 1022 1023 mtx_lock(&softc->ctl_lock); 1024 if (msg->hdr.nexus.targ_lun < CTL_MAX_LUNS && 1025 (lun = softc->ctl_luns[msg->hdr.nexus.targ_mapped_lun]) != NULL) { 1026 mtx_lock(&lun->lun_lock); 1027 mtx_unlock(&softc->ctl_lock); 1028 if (msg->ua.ua_type == CTL_UA_THIN_PROV_THRES && 1029 msg->ua.ua_set) 1030 memcpy(lun->ua_tpt_info, msg->ua.ua_info, 8); 1031 if (msg->ua.ua_all) { 1032 if (msg->ua.ua_set) 1033 ctl_est_ua_all(lun, iid, msg->ua.ua_type); 1034 else 1035 ctl_clr_ua_all(lun, iid, msg->ua.ua_type); 1036 } else { 1037 if (msg->ua.ua_set) 1038 ctl_est_ua(lun, iid, msg->ua.ua_type); 1039 else 1040 ctl_clr_ua(lun, iid, msg->ua.ua_type); 1041 } 1042 mtx_unlock(&lun->lun_lock); 1043 } else 1044 mtx_unlock(&softc->ctl_lock); 1045} 1046 1047static void 1048ctl_isc_lun_sync(struct ctl_softc *softc, union ctl_ha_msg *msg, int len) 1049{ 1050 struct ctl_lun *lun; 1051 struct ctl_ha_msg_lun_pr_key pr_key; 1052 int i, k; 1053 ctl_lun_flags oflags; 1054 uint32_t targ_lun; 1055 1056 targ_lun = msg->hdr.nexus.targ_mapped_lun; 1057 mtx_lock(&softc->ctl_lock); 1058 if ((targ_lun >= CTL_MAX_LUNS) || 1059 ((lun = softc->ctl_luns[targ_lun]) == NULL)) { 1060 mtx_unlock(&softc->ctl_lock); 1061 return; 1062 } 1063 mtx_lock(&lun->lun_lock); 1064 mtx_unlock(&softc->ctl_lock); 1065 if (lun->flags & CTL_LUN_DISABLED) { 1066 mtx_unlock(&lun->lun_lock); 1067 return; 1068 } 1069 i = (lun->lun_devid != NULL) ? lun->lun_devid->len : 0; 1070 if (msg->lun.lun_devid_len != i || (i > 0 && 1071 memcmp(&msg->lun.data[0], lun->lun_devid->data, i) != 0)) { 1072 mtx_unlock(&lun->lun_lock); 1073 printf("%s: Received conflicting HA LUN %d\n", 1074 __func__, msg->hdr.nexus.targ_lun); 1075 return; 1076 } else { 1077 /* Record whether peer is primary. */ 1078 oflags = lun->flags; 1079 if ((msg->lun.flags & CTL_LUN_PRIMARY_SC) && 1080 (msg->lun.flags & CTL_LUN_DISABLED) == 0) 1081 lun->flags |= CTL_LUN_PEER_SC_PRIMARY; 1082 else 1083 lun->flags &= ~CTL_LUN_PEER_SC_PRIMARY; 1084 if (oflags != lun->flags) 1085 ctl_est_ua_all(lun, -1, CTL_UA_ASYM_ACC_CHANGE); 1086 1087 /* If peer is primary and we are not -- use data */ 1088 if ((lun->flags & CTL_LUN_PRIMARY_SC) == 0 && 1089 (lun->flags & CTL_LUN_PEER_SC_PRIMARY)) { 1090 lun->PRGeneration = msg->lun.pr_generation; 1091 lun->pr_res_idx = msg->lun.pr_res_idx; 1092 lun->res_type = msg->lun.pr_res_type; 1093 lun->pr_key_count = msg->lun.pr_key_count; 1094 for (k = 0; k < CTL_MAX_INITIATORS; k++) 1095 ctl_clr_prkey(lun, k); 1096 for (k = 0; k < msg->lun.pr_key_count; k++) { 1097 memcpy(&pr_key, &msg->lun.data[i], 1098 sizeof(pr_key)); 1099 ctl_alloc_prkey(lun, pr_key.pr_iid); 1100 ctl_set_prkey(lun, pr_key.pr_iid, 1101 pr_key.pr_key); 1102 i += sizeof(pr_key); 1103 } 1104 } 1105 1106 mtx_unlock(&lun->lun_lock); 1107 CTL_DEBUG_PRINT(("%s: Known LUN %d, peer is %s\n", 1108 __func__, msg->hdr.nexus.targ_lun, 1109 (msg->lun.flags & CTL_LUN_PRIMARY_SC) ? 1110 "primary" : "secondary")); 1111 1112 /* If we are primary but peer doesn't know -- notify */ 1113 if ((lun->flags & CTL_LUN_PRIMARY_SC) && 1114 (msg->lun.flags & CTL_LUN_PEER_SC_PRIMARY) == 0) 1115 ctl_isc_announce_lun(lun); 1116 } 1117} 1118 1119static void 1120ctl_isc_port_sync(struct ctl_softc *softc, union ctl_ha_msg *msg, int len) 1121{ 1122 struct ctl_port *port; 1123 struct ctl_lun *lun; 1124 int i, new; 1125 1126 port = softc->ctl_ports[msg->hdr.nexus.targ_port]; 1127 if (port == NULL) { 1128 CTL_DEBUG_PRINT(("%s: New port %d\n", __func__, 1129 msg->hdr.nexus.targ_port)); 1130 new = 1; 1131 port = malloc(sizeof(*port), M_CTL, M_WAITOK | M_ZERO); 1132 port->frontend = &ha_frontend; 1133 port->targ_port = msg->hdr.nexus.targ_port; 1134 port->fe_datamove = ctl_ha_datamove; 1135 port->fe_done = ctl_ha_done; 1136 } else if (port->frontend == &ha_frontend) { 1137 CTL_DEBUG_PRINT(("%s: Updated port %d\n", __func__, 1138 msg->hdr.nexus.targ_port)); 1139 new = 0; 1140 } else { 1141 printf("%s: Received conflicting HA port %d\n", 1142 __func__, msg->hdr.nexus.targ_port); 1143 return; 1144 } 1145 port->port_type = msg->port.port_type; 1146 port->physical_port = msg->port.physical_port; 1147 port->virtual_port = msg->port.virtual_port; 1148 port->status = msg->port.status; 1149 i = 0; 1150 free(port->port_name, M_CTL); 1151 port->port_name = strndup(&msg->port.data[i], msg->port.name_len, 1152 M_CTL); 1153 i += msg->port.name_len; 1154 if (msg->port.lun_map_len != 0) { 1155 if (port->lun_map == NULL) 1156 port->lun_map = malloc(sizeof(uint32_t) * CTL_MAX_LUNS, 1157 M_CTL, M_WAITOK); 1158 memcpy(port->lun_map, &msg->port.data[i], 1159 sizeof(uint32_t) * CTL_MAX_LUNS); 1160 i += msg->port.lun_map_len; 1161 } else { 1162 free(port->lun_map, M_CTL); 1163 port->lun_map = NULL; 1164 } 1165 if (msg->port.port_devid_len != 0) { 1166 if (port->port_devid == NULL || 1167 port->port_devid->len != msg->port.port_devid_len) { 1168 free(port->port_devid, M_CTL); 1169 port->port_devid = malloc(sizeof(struct ctl_devid) + 1170 msg->port.port_devid_len, M_CTL, M_WAITOK); 1171 } 1172 memcpy(port->port_devid->data, &msg->port.data[i], 1173 msg->port.port_devid_len); 1174 port->port_devid->len = msg->port.port_devid_len; 1175 i += msg->port.port_devid_len; 1176 } else { 1177 free(port->port_devid, M_CTL); 1178 port->port_devid = NULL; 1179 } 1180 if (msg->port.target_devid_len != 0) { 1181 if (port->target_devid == NULL || 1182 port->target_devid->len != msg->port.target_devid_len) { 1183 free(port->target_devid, M_CTL); 1184 port->target_devid = malloc(sizeof(struct ctl_devid) + 1185 msg->port.target_devid_len, M_CTL, M_WAITOK); 1186 } 1187 memcpy(port->target_devid->data, &msg->port.data[i], 1188 msg->port.target_devid_len); 1189 port->target_devid->len = msg->port.target_devid_len; 1190 i += msg->port.target_devid_len; 1191 } else { 1192 free(port->target_devid, M_CTL); 1193 port->target_devid = NULL; 1194 } 1195 if (msg->port.init_devid_len != 0) { 1196 if (port->init_devid == NULL || 1197 port->init_devid->len != msg->port.init_devid_len) { 1198 free(port->init_devid, M_CTL); 1199 port->init_devid = malloc(sizeof(struct ctl_devid) + 1200 msg->port.init_devid_len, M_CTL, M_WAITOK); 1201 } 1202 memcpy(port->init_devid->data, &msg->port.data[i], 1203 msg->port.init_devid_len); 1204 port->init_devid->len = msg->port.init_devid_len; 1205 i += msg->port.init_devid_len; 1206 } else { 1207 free(port->init_devid, M_CTL); 1208 port->init_devid = NULL; 1209 } 1210 if (new) { 1211 if (ctl_port_register(port) != 0) { 1212 printf("%s: ctl_port_register() failed with error\n", 1213 __func__); 1214 } 1215 } 1216 mtx_lock(&softc->ctl_lock); 1217 STAILQ_FOREACH(lun, &softc->lun_list, links) { 1218 if (ctl_lun_map_to_port(port, lun->lun) >= CTL_MAX_LUNS) 1219 continue; 1220 mtx_lock(&lun->lun_lock); 1221 ctl_est_ua_all(lun, -1, CTL_UA_INQ_CHANGE); 1222 mtx_unlock(&lun->lun_lock); 1223 } 1224 mtx_unlock(&softc->ctl_lock); 1225} 1226 1227static void 1228ctl_isc_iid_sync(struct ctl_softc *softc, union ctl_ha_msg *msg, int len) 1229{ 1230 struct ctl_port *port; 1231 int iid; 1232 1233 port = softc->ctl_ports[msg->hdr.nexus.targ_port]; 1234 if (port == NULL) { 1235 printf("%s: Received IID for unknown port %d\n", 1236 __func__, msg->hdr.nexus.targ_port); 1237 return; 1238 } 1239 iid = msg->hdr.nexus.initid; 1240 port->wwpn_iid[iid].in_use = msg->iid.in_use; 1241 port->wwpn_iid[iid].wwpn = msg->iid.wwpn; 1242 free(port->wwpn_iid[iid].name, M_CTL); 1243 if (msg->iid.name_len) { 1244 port->wwpn_iid[iid].name = strndup(&msg->iid.data[0], 1245 msg->iid.name_len, M_CTL); 1246 } else 1247 port->wwpn_iid[iid].name = NULL; 1248} 1249 1250static void 1251ctl_isc_login(struct ctl_softc *softc, union ctl_ha_msg *msg, int len) 1252{ 1253 1254 if (msg->login.version != CTL_HA_VERSION) { 1255 printf("CTL HA peers have different versions %d != %d\n", 1256 msg->login.version, CTL_HA_VERSION); 1257 ctl_ha_msg_abort(CTL_HA_CHAN_CTL); 1258 return; 1259 } 1260 if (msg->login.ha_mode != softc->ha_mode) { 1261 printf("CTL HA peers have different ha_mode %d != %d\n", 1262 msg->login.ha_mode, softc->ha_mode); 1263 ctl_ha_msg_abort(CTL_HA_CHAN_CTL); 1264 return; 1265 } 1266 if (msg->login.ha_id == softc->ha_id) { 1267 printf("CTL HA peers have same ha_id %d\n", msg->login.ha_id); 1268 ctl_ha_msg_abort(CTL_HA_CHAN_CTL); 1269 return; 1270 } 1271 if (msg->login.max_luns != CTL_MAX_LUNS || 1272 msg->login.max_ports != CTL_MAX_PORTS || 1273 msg->login.max_init_per_port != CTL_MAX_INIT_PER_PORT) { 1274 printf("CTL HA peers have different limits\n"); 1275 ctl_ha_msg_abort(CTL_HA_CHAN_CTL); 1276 return; 1277 } 1278} 1279 1280static void 1281ctl_isc_mode_sync(struct ctl_softc *softc, union ctl_ha_msg *msg, int len) 1282{ 1283 struct ctl_lun *lun; 1284 int i; 1285 uint32_t initidx, targ_lun; 1286 1287 targ_lun = msg->hdr.nexus.targ_mapped_lun; 1288 mtx_lock(&softc->ctl_lock); 1289 if ((targ_lun >= CTL_MAX_LUNS) || 1290 ((lun = softc->ctl_luns[targ_lun]) == NULL)) { 1291 mtx_unlock(&softc->ctl_lock); 1292 return; 1293 } 1294 mtx_lock(&lun->lun_lock); 1295 mtx_unlock(&softc->ctl_lock); 1296 if (lun->flags & CTL_LUN_DISABLED) { 1297 mtx_unlock(&lun->lun_lock); 1298 return; 1299 } 1300 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 1301 if ((lun->mode_pages.index[i].page_code & SMPH_PC_MASK) == 1302 msg->mode.page_code && 1303 lun->mode_pages.index[i].subpage == msg->mode.subpage) 1304 break; 1305 } 1306 if (i == CTL_NUM_MODE_PAGES) { 1307 mtx_unlock(&lun->lun_lock); 1308 return; 1309 } 1310 memcpy(lun->mode_pages.index[i].page_data, msg->mode.data, 1311 lun->mode_pages.index[i].page_len); 1312 initidx = ctl_get_initindex(&msg->hdr.nexus); 1313 if (initidx != -1) 1314 ctl_est_ua_all(lun, initidx, CTL_UA_MODE_CHANGE); 1315 mtx_unlock(&lun->lun_lock); 1316} 1317 1318/* 1319 * ISC (Inter Shelf Communication) event handler. Events from the HA 1320 * subsystem come in here. 1321 */ 1322static void 1323ctl_isc_event_handler(ctl_ha_channel channel, ctl_ha_event event, int param) 1324{ 1325 struct ctl_softc *softc = control_softc; 1326 union ctl_io *io; 1327 struct ctl_prio *presio; 1328 ctl_ha_status isc_status; 1329 1330 CTL_DEBUG_PRINT(("CTL: Isc Msg event %d\n", event)); 1331 if (event == CTL_HA_EVT_MSG_RECV) { 1332 union ctl_ha_msg *msg, msgbuf; 1333 1334 if (param > sizeof(msgbuf)) 1335 msg = malloc(param, M_CTL, M_WAITOK); 1336 else 1337 msg = &msgbuf; 1338 isc_status = ctl_ha_msg_recv(CTL_HA_CHAN_CTL, msg, param, 1339 M_WAITOK); 1340 if (isc_status != CTL_HA_STATUS_SUCCESS) { 1341 printf("%s: Error receiving message: %d\n", 1342 __func__, isc_status); 1343 if (msg != &msgbuf) 1344 free(msg, M_CTL); 1345 return; 1346 } 1347 1348 CTL_DEBUG_PRINT(("CTL: msg_type %d\n", msg->msg_type)); 1349 switch (msg->hdr.msg_type) { 1350 case CTL_MSG_SERIALIZE: 1351 io = ctl_alloc_io(softc->othersc_pool); 1352 ctl_zero_io(io); 1353 // populate ctsio from msg 1354 io->io_hdr.io_type = CTL_IO_SCSI; 1355 io->io_hdr.msg_type = CTL_MSG_SERIALIZE; 1356 io->io_hdr.original_sc = msg->hdr.original_sc; 1357 io->io_hdr.flags |= CTL_FLAG_FROM_OTHER_SC | 1358 CTL_FLAG_IO_ACTIVE; 1359 /* 1360 * If we're in serialization-only mode, we don't 1361 * want to go through full done processing. Thus 1362 * the COPY flag. 1363 * 1364 * XXX KDM add another flag that is more specific. 1365 */ 1366 if (softc->ha_mode != CTL_HA_MODE_XFER) 1367 io->io_hdr.flags |= CTL_FLAG_INT_COPY; 1368 io->io_hdr.nexus = msg->hdr.nexus; 1369#if 0 1370 printf("port %u, iid %u, lun %u\n", 1371 io->io_hdr.nexus.targ_port, 1372 io->io_hdr.nexus.initid, 1373 io->io_hdr.nexus.targ_lun); 1374#endif 1375 io->scsiio.tag_num = msg->scsi.tag_num; 1376 io->scsiio.tag_type = msg->scsi.tag_type; 1377#ifdef CTL_TIME_IO 1378 io->io_hdr.start_time = time_uptime; 1379 getbinuptime(&io->io_hdr.start_bt); 1380#endif /* CTL_TIME_IO */ 1381 io->scsiio.cdb_len = msg->scsi.cdb_len; 1382 memcpy(io->scsiio.cdb, msg->scsi.cdb, 1383 CTL_MAX_CDBLEN); 1384 if (softc->ha_mode == CTL_HA_MODE_XFER) { 1385 const struct ctl_cmd_entry *entry; 1386 1387 entry = ctl_get_cmd_entry(&io->scsiio, NULL); 1388 io->io_hdr.flags &= ~CTL_FLAG_DATA_MASK; 1389 io->io_hdr.flags |= 1390 entry->flags & CTL_FLAG_DATA_MASK; 1391 } 1392 ctl_enqueue_isc(io); 1393 break; 1394 1395 /* Performed on the Originating SC, XFER mode only */ 1396 case CTL_MSG_DATAMOVE: { 1397 struct ctl_sg_entry *sgl; 1398 int i, j; 1399 1400 io = msg->hdr.original_sc; 1401 if (io == NULL) { 1402 printf("%s: original_sc == NULL!\n", __func__); 1403 /* XXX KDM do something here */ 1404 break; 1405 } 1406 io->io_hdr.msg_type = CTL_MSG_DATAMOVE; 1407 io->io_hdr.flags |= CTL_FLAG_IO_ACTIVE; 1408 /* 1409 * Keep track of this, we need to send it back over 1410 * when the datamove is complete. 1411 */ 1412 io->io_hdr.serializing_sc = msg->hdr.serializing_sc; 1413 if (msg->hdr.status == CTL_SUCCESS) 1414 io->io_hdr.status = msg->hdr.status; 1415 1416 if (msg->dt.sg_sequence == 0) { 1417#ifdef CTL_TIME_IO 1418 getbinuptime(&io->io_hdr.dma_start_bt); 1419#endif 1420 i = msg->dt.kern_sg_entries + 1421 msg->dt.kern_data_len / 1422 CTL_HA_DATAMOVE_SEGMENT + 1; 1423 sgl = malloc(sizeof(*sgl) * i, M_CTL, 1424 M_WAITOK | M_ZERO); 1425 io->io_hdr.remote_sglist = sgl; 1426 io->io_hdr.local_sglist = 1427 &sgl[msg->dt.kern_sg_entries]; 1428 1429 io->scsiio.kern_data_ptr = (uint8_t *)sgl; 1430 1431 io->scsiio.kern_sg_entries = 1432 msg->dt.kern_sg_entries; 1433 io->scsiio.rem_sg_entries = 1434 msg->dt.kern_sg_entries; 1435 io->scsiio.kern_data_len = 1436 msg->dt.kern_data_len; 1437 io->scsiio.kern_total_len = 1438 msg->dt.kern_total_len; 1439 io->scsiio.kern_data_resid = 1440 msg->dt.kern_data_resid; 1441 io->scsiio.kern_rel_offset = 1442 msg->dt.kern_rel_offset; 1443 io->io_hdr.flags &= ~CTL_FLAG_BUS_ADDR; 1444 io->io_hdr.flags |= msg->dt.flags & 1445 CTL_FLAG_BUS_ADDR; 1446 } else 1447 sgl = (struct ctl_sg_entry *) 1448 io->scsiio.kern_data_ptr; 1449 1450 for (i = msg->dt.sent_sg_entries, j = 0; 1451 i < (msg->dt.sent_sg_entries + 1452 msg->dt.cur_sg_entries); i++, j++) { 1453 sgl[i].addr = msg->dt.sg_list[j].addr; 1454 sgl[i].len = msg->dt.sg_list[j].len; 1455 1456#if 0 1457 printf("%s: DATAMOVE: %p,%lu j=%d, i=%d\n", 1458 __func__, sgl[i].addr, sgl[i].len, j, i); 1459#endif 1460 } 1461 1462 /* 1463 * If this is the last piece of the I/O, we've got 1464 * the full S/G list. Queue processing in the thread. 1465 * Otherwise wait for the next piece. 1466 */ 1467 if (msg->dt.sg_last != 0) 1468 ctl_enqueue_isc(io); 1469 break; 1470 } 1471 /* Performed on the Serializing (primary) SC, XFER mode only */ 1472 case CTL_MSG_DATAMOVE_DONE: { 1473 if (msg->hdr.serializing_sc == NULL) { 1474 printf("%s: serializing_sc == NULL!\n", 1475 __func__); 1476 /* XXX KDM now what? */ 1477 break; 1478 } 1479 /* 1480 * We grab the sense information here in case 1481 * there was a failure, so we can return status 1482 * back to the initiator. 1483 */ 1484 io = msg->hdr.serializing_sc; 1485 io->io_hdr.msg_type = CTL_MSG_DATAMOVE_DONE; 1486 io->io_hdr.flags &= ~CTL_FLAG_DMA_INPROG; 1487 io->io_hdr.flags |= CTL_FLAG_IO_ACTIVE; 1488 io->io_hdr.port_status = msg->scsi.fetd_status; 1489 io->scsiio.residual = msg->scsi.residual; 1490 if (msg->hdr.status != CTL_STATUS_NONE) { 1491 io->io_hdr.status = msg->hdr.status; 1492 io->scsiio.scsi_status = msg->scsi.scsi_status; 1493 io->scsiio.sense_len = msg->scsi.sense_len; 1494 io->scsiio.sense_residual =msg->scsi.sense_residual; 1495 memcpy(&io->scsiio.sense_data, 1496 &msg->scsi.sense_data, 1497 msg->scsi.sense_len); 1498 if (msg->hdr.status == CTL_SUCCESS) 1499 io->io_hdr.flags |= CTL_FLAG_STATUS_SENT; 1500 } 1501 ctl_enqueue_isc(io); 1502 break; 1503 } 1504 1505 /* Preformed on Originating SC, SER_ONLY mode */ 1506 case CTL_MSG_R2R: 1507 io = msg->hdr.original_sc; 1508 if (io == NULL) { 1509 printf("%s: original_sc == NULL!\n", 1510 __func__); 1511 break; 1512 } 1513 io->io_hdr.flags |= CTL_FLAG_IO_ACTIVE; 1514 io->io_hdr.msg_type = CTL_MSG_R2R; 1515 io->io_hdr.serializing_sc = msg->hdr.serializing_sc; 1516 ctl_enqueue_isc(io); 1517 break; 1518 1519 /* 1520 * Performed on Serializing(i.e. primary SC) SC in SER_ONLY 1521 * mode. 1522 * Performed on the Originating (i.e. secondary) SC in XFER 1523 * mode 1524 */ 1525 case CTL_MSG_FINISH_IO: 1526 if (softc->ha_mode == CTL_HA_MODE_XFER) 1527 ctl_isc_handler_finish_xfer(softc, msg); 1528 else 1529 ctl_isc_handler_finish_ser_only(softc, msg); 1530 break; 1531 1532 /* Preformed on Originating SC */ 1533 case CTL_MSG_BAD_JUJU: 1534 io = msg->hdr.original_sc; 1535 if (io == NULL) { 1536 printf("%s: Bad JUJU!, original_sc is NULL!\n", 1537 __func__); 1538 break; 1539 } 1540 ctl_copy_sense_data(msg, io); 1541 /* 1542 * IO should have already been cleaned up on other 1543 * SC so clear this flag so we won't send a message 1544 * back to finish the IO there. 1545 */ 1546 io->io_hdr.flags &= ~CTL_FLAG_SENT_2OTHER_SC; 1547 io->io_hdr.flags |= CTL_FLAG_IO_ACTIVE; 1548 1549 /* io = msg->hdr.serializing_sc; */ 1550 io->io_hdr.msg_type = CTL_MSG_BAD_JUJU; 1551 ctl_enqueue_isc(io); 1552 break; 1553 1554 /* Handle resets sent from the other side */ 1555 case CTL_MSG_MANAGE_TASKS: { 1556 struct ctl_taskio *taskio; 1557 taskio = (struct ctl_taskio *)ctl_alloc_io( 1558 softc->othersc_pool); 1559 ctl_zero_io((union ctl_io *)taskio); 1560 taskio->io_hdr.io_type = CTL_IO_TASK; 1561 taskio->io_hdr.flags |= CTL_FLAG_FROM_OTHER_SC; 1562 taskio->io_hdr.nexus = msg->hdr.nexus; 1563 taskio->task_action = msg->task.task_action; 1564 taskio->tag_num = msg->task.tag_num; 1565 taskio->tag_type = msg->task.tag_type; 1566#ifdef CTL_TIME_IO 1567 taskio->io_hdr.start_time = time_uptime; 1568 getbinuptime(&taskio->io_hdr.start_bt); 1569#endif /* CTL_TIME_IO */ 1570 ctl_run_task((union ctl_io *)taskio); 1571 break; 1572 } 1573 /* Persistent Reserve action which needs attention */ 1574 case CTL_MSG_PERS_ACTION: 1575 presio = (struct ctl_prio *)ctl_alloc_io( 1576 softc->othersc_pool); 1577 ctl_zero_io((union ctl_io *)presio); 1578 presio->io_hdr.msg_type = CTL_MSG_PERS_ACTION; 1579 presio->io_hdr.flags |= CTL_FLAG_FROM_OTHER_SC; 1580 presio->io_hdr.nexus = msg->hdr.nexus; 1581 presio->pr_msg = msg->pr; 1582 ctl_enqueue_isc((union ctl_io *)presio); 1583 break; 1584 case CTL_MSG_UA: 1585 ctl_isc_ua(softc, msg, param); 1586 break; 1587 case CTL_MSG_PORT_SYNC: 1588 ctl_isc_port_sync(softc, msg, param); 1589 break; 1590 case CTL_MSG_LUN_SYNC: 1591 ctl_isc_lun_sync(softc, msg, param); 1592 break; 1593 case CTL_MSG_IID_SYNC: 1594 ctl_isc_iid_sync(softc, msg, param); 1595 break; 1596 case CTL_MSG_LOGIN: 1597 ctl_isc_login(softc, msg, param); 1598 break; 1599 case CTL_MSG_MODE_SYNC: 1600 ctl_isc_mode_sync(softc, msg, param); 1601 break; 1602 default: 1603 printf("Received HA message of unknown type %d\n", 1604 msg->hdr.msg_type); 1605 ctl_ha_msg_abort(CTL_HA_CHAN_CTL); 1606 break; 1607 } 1608 if (msg != &msgbuf) 1609 free(msg, M_CTL); 1610 } else if (event == CTL_HA_EVT_LINK_CHANGE) { 1611 printf("CTL: HA link status changed from %d to %d\n", 1612 softc->ha_link, param); 1613 if (param == softc->ha_link) 1614 return; 1615 if (softc->ha_link == CTL_HA_LINK_ONLINE) { 1616 softc->ha_link = param; 1617 ctl_isc_ha_link_down(softc); 1618 } else { 1619 softc->ha_link = param; 1620 if (softc->ha_link == CTL_HA_LINK_ONLINE) 1621 ctl_isc_ha_link_up(softc); 1622 } 1623 return; 1624 } else { 1625 printf("ctl_isc_event_handler: Unknown event %d\n", event); 1626 return; 1627 } 1628} 1629 1630static void 1631ctl_copy_sense_data(union ctl_ha_msg *src, union ctl_io *dest) 1632{ 1633 1634 memcpy(&dest->scsiio.sense_data, &src->scsi.sense_data, 1635 src->scsi.sense_len); 1636 dest->scsiio.scsi_status = src->scsi.scsi_status; 1637 dest->scsiio.sense_len = src->scsi.sense_len; 1638 dest->io_hdr.status = src->hdr.status; 1639} 1640 1641static void 1642ctl_copy_sense_data_back(union ctl_io *src, union ctl_ha_msg *dest) 1643{ 1644 1645 memcpy(&dest->scsi.sense_data, &src->scsiio.sense_data, 1646 src->scsiio.sense_len); 1647 dest->scsi.scsi_status = src->scsiio.scsi_status; 1648 dest->scsi.sense_len = src->scsiio.sense_len; 1649 dest->hdr.status = src->io_hdr.status; 1650} 1651 1652void 1653ctl_est_ua(struct ctl_lun *lun, uint32_t initidx, ctl_ua_type ua) 1654{ 1655 struct ctl_softc *softc = lun->ctl_softc; 1656 ctl_ua_type *pu; 1657 1658 if (initidx < softc->init_min || initidx >= softc->init_max) 1659 return; 1660 mtx_assert(&lun->lun_lock, MA_OWNED); 1661 pu = lun->pending_ua[initidx / CTL_MAX_INIT_PER_PORT]; 1662 if (pu == NULL) 1663 return; 1664 pu[initidx % CTL_MAX_INIT_PER_PORT] |= ua; 1665} 1666 1667void 1668ctl_est_ua_port(struct ctl_lun *lun, int port, uint32_t except, ctl_ua_type ua) 1669{ 1670 int i; 1671 1672 mtx_assert(&lun->lun_lock, MA_OWNED); 1673 if (lun->pending_ua[port] == NULL) 1674 return; 1675 for (i = 0; i < CTL_MAX_INIT_PER_PORT; i++) { 1676 if (port * CTL_MAX_INIT_PER_PORT + i == except) 1677 continue; 1678 lun->pending_ua[port][i] |= ua; 1679 } 1680} 1681 1682void 1683ctl_est_ua_all(struct ctl_lun *lun, uint32_t except, ctl_ua_type ua) 1684{ 1685 struct ctl_softc *softc = lun->ctl_softc; 1686 int i; 1687 1688 mtx_assert(&lun->lun_lock, MA_OWNED); 1689 for (i = softc->port_min; i < softc->port_max; i++) 1690 ctl_est_ua_port(lun, i, except, ua); 1691} 1692 1693void 1694ctl_clr_ua(struct ctl_lun *lun, uint32_t initidx, ctl_ua_type ua) 1695{ 1696 struct ctl_softc *softc = lun->ctl_softc; 1697 ctl_ua_type *pu; 1698 1699 if (initidx < softc->init_min || initidx >= softc->init_max) 1700 return; 1701 mtx_assert(&lun->lun_lock, MA_OWNED); 1702 pu = lun->pending_ua[initidx / CTL_MAX_INIT_PER_PORT]; 1703 if (pu == NULL) 1704 return; 1705 pu[initidx % CTL_MAX_INIT_PER_PORT] &= ~ua; 1706} 1707 1708void 1709ctl_clr_ua_all(struct ctl_lun *lun, uint32_t except, ctl_ua_type ua) 1710{ 1711 struct ctl_softc *softc = lun->ctl_softc; 1712 int i, j; 1713 1714 mtx_assert(&lun->lun_lock, MA_OWNED); 1715 for (i = softc->port_min; i < softc->port_max; i++) { 1716 if (lun->pending_ua[i] == NULL) 1717 continue; 1718 for (j = 0; j < CTL_MAX_INIT_PER_PORT; j++) { 1719 if (i * CTL_MAX_INIT_PER_PORT + j == except) 1720 continue; 1721 lun->pending_ua[i][j] &= ~ua; 1722 } 1723 } 1724} 1725 1726void 1727ctl_clr_ua_allluns(struct ctl_softc *ctl_softc, uint32_t initidx, 1728 ctl_ua_type ua_type) 1729{ 1730 struct ctl_lun *lun; 1731 1732 mtx_assert(&ctl_softc->ctl_lock, MA_OWNED); 1733 STAILQ_FOREACH(lun, &ctl_softc->lun_list, links) { 1734 mtx_lock(&lun->lun_lock); 1735 ctl_clr_ua(lun, initidx, ua_type); 1736 mtx_unlock(&lun->lun_lock); 1737 } 1738} 1739 1740static int 1741ctl_ha_role_sysctl(SYSCTL_HANDLER_ARGS) 1742{ 1743 struct ctl_softc *softc = (struct ctl_softc *)arg1; 1744 struct ctl_lun *lun; 1745 struct ctl_lun_req ireq; 1746 int error, value; 1747 1748 value = (softc->flags & CTL_FLAG_ACTIVE_SHELF) ? 0 : 1; 1749 error = sysctl_handle_int(oidp, &value, 0, req); 1750 if ((error != 0) || (req->newptr == NULL)) 1751 return (error); 1752 1753 mtx_lock(&softc->ctl_lock); 1754 if (value == 0) 1755 softc->flags |= CTL_FLAG_ACTIVE_SHELF; 1756 else 1757 softc->flags &= ~CTL_FLAG_ACTIVE_SHELF; 1758 STAILQ_FOREACH(lun, &softc->lun_list, links) { 1759 mtx_unlock(&softc->ctl_lock); 1760 bzero(&ireq, sizeof(ireq)); 1761 ireq.reqtype = CTL_LUNREQ_MODIFY; 1762 ireq.reqdata.modify.lun_id = lun->lun; 1763 lun->backend->ioctl(NULL, CTL_LUN_REQ, (caddr_t)&ireq, 0, 1764 curthread); 1765 if (ireq.status != CTL_LUN_OK) { 1766 printf("%s: CTL_LUNREQ_MODIFY returned %d '%s'\n", 1767 __func__, ireq.status, ireq.error_str); 1768 } 1769 mtx_lock(&softc->ctl_lock); 1770 } 1771 mtx_unlock(&softc->ctl_lock); 1772 return (0); 1773} 1774 1775static int 1776ctl_init(void) 1777{ 1778 struct ctl_softc *softc; 1779 void *other_pool; 1780 int i, error; 1781 1782 softc = control_softc = malloc(sizeof(*control_softc), M_DEVBUF, 1783 M_WAITOK | M_ZERO); 1784 1785 softc->dev = make_dev(&ctl_cdevsw, 0, UID_ROOT, GID_OPERATOR, 0600, 1786 "cam/ctl"); 1787 softc->dev->si_drv1 = softc; 1788 1789 sysctl_ctx_init(&softc->sysctl_ctx); 1790 softc->sysctl_tree = SYSCTL_ADD_NODE(&softc->sysctl_ctx, 1791 SYSCTL_STATIC_CHILDREN(_kern_cam), OID_AUTO, "ctl", 1792 CTLFLAG_RD, 0, "CAM Target Layer"); 1793 1794 if (softc->sysctl_tree == NULL) { 1795 printf("%s: unable to allocate sysctl tree\n", __func__); 1796 destroy_dev(softc->dev); 1797 free(control_softc, M_DEVBUF); 1798 control_softc = NULL; 1799 return (ENOMEM); 1800 } 1801 1802 mtx_init(&softc->ctl_lock, "CTL mutex", NULL, MTX_DEF); 1803 softc->io_zone = uma_zcreate("CTL IO", sizeof(union ctl_io), 1804 NULL, NULL, NULL, NULL, UMA_ALIGN_PTR, 0); 1805 softc->flags = 0; 1806 1807 SYSCTL_ADD_INT(&softc->sysctl_ctx, SYSCTL_CHILDREN(softc->sysctl_tree), 1808 OID_AUTO, "ha_mode", CTLFLAG_RDTUN, (int *)&softc->ha_mode, 0, 1809 "HA mode (0 - act/stby, 1 - serialize only, 2 - xfer)"); 1810 1811 /* 1812 * In Copan's HA scheme, the "master" and "slave" roles are 1813 * figured out through the slot the controller is in. Although it 1814 * is an active/active system, someone has to be in charge. 1815 */ 1816 SYSCTL_ADD_INT(&softc->sysctl_ctx, SYSCTL_CHILDREN(softc->sysctl_tree), 1817 OID_AUTO, "ha_id", CTLFLAG_RDTUN, &softc->ha_id, 0, 1818 "HA head ID (0 - no HA)"); 1819 if (softc->ha_id == 0 || softc->ha_id > NUM_TARGET_PORT_GROUPS) { 1820 softc->flags |= CTL_FLAG_ACTIVE_SHELF; 1821 softc->is_single = 1; 1822 softc->port_cnt = CTL_MAX_PORTS; 1823 softc->port_min = 0; 1824 } else { 1825 softc->port_cnt = CTL_MAX_PORTS / NUM_TARGET_PORT_GROUPS; 1826 softc->port_min = (softc->ha_id - 1) * softc->port_cnt; 1827 } 1828 softc->port_max = softc->port_min + softc->port_cnt; 1829 softc->init_min = softc->port_min * CTL_MAX_INIT_PER_PORT; 1830 softc->init_max = softc->port_max * CTL_MAX_INIT_PER_PORT; 1831 1832 SYSCTL_ADD_INT(&softc->sysctl_ctx, SYSCTL_CHILDREN(softc->sysctl_tree), 1833 OID_AUTO, "ha_link", CTLFLAG_RD, (int *)&softc->ha_link, 0, 1834 "HA link state (0 - offline, 1 - unknown, 2 - online)"); 1835 1836 STAILQ_INIT(&softc->lun_list); 1837 STAILQ_INIT(&softc->pending_lun_queue); 1838 STAILQ_INIT(&softc->fe_list); 1839 STAILQ_INIT(&softc->port_list); 1840 STAILQ_INIT(&softc->be_list); 1841 ctl_tpc_init(softc); 1842 1843 if (ctl_pool_create(softc, "othersc", CTL_POOL_ENTRIES_OTHER_SC, 1844 &other_pool) != 0) 1845 { 1846 printf("ctl: can't allocate %d entry other SC pool, " 1847 "exiting\n", CTL_POOL_ENTRIES_OTHER_SC); 1848 return (ENOMEM); 1849 } 1850 softc->othersc_pool = other_pool; 1851 1852 if (worker_threads <= 0) 1853 worker_threads = max(1, mp_ncpus / 4); 1854 if (worker_threads > CTL_MAX_THREADS) 1855 worker_threads = CTL_MAX_THREADS; 1856 1857 for (i = 0; i < worker_threads; i++) { 1858 struct ctl_thread *thr = &softc->threads[i]; 1859 1860 mtx_init(&thr->queue_lock, "CTL queue mutex", NULL, MTX_DEF); 1861 thr->ctl_softc = softc; 1862 STAILQ_INIT(&thr->incoming_queue); 1863 STAILQ_INIT(&thr->rtr_queue); 1864 STAILQ_INIT(&thr->done_queue); 1865 STAILQ_INIT(&thr->isc_queue); 1866 1867 error = kproc_kthread_add(ctl_work_thread, thr, 1868 &softc->ctl_proc, &thr->thread, 0, 0, "ctl", "work%d", i); 1869 if (error != 0) { 1870 printf("error creating CTL work thread!\n"); 1871 ctl_pool_free(other_pool); 1872 return (error); 1873 } 1874 } 1875 error = kproc_kthread_add(ctl_lun_thread, softc, 1876 &softc->ctl_proc, NULL, 0, 0, "ctl", "lun"); 1877 if (error != 0) { 1878 printf("error creating CTL lun thread!\n"); 1879 ctl_pool_free(other_pool); 1880 return (error); 1881 } 1882 error = kproc_kthread_add(ctl_thresh_thread, softc, 1883 &softc->ctl_proc, NULL, 0, 0, "ctl", "thresh"); 1884 if (error != 0) { 1885 printf("error creating CTL threshold thread!\n"); 1886 ctl_pool_free(other_pool); 1887 return (error); 1888 } 1889 1890 SYSCTL_ADD_PROC(&softc->sysctl_ctx,SYSCTL_CHILDREN(softc->sysctl_tree), 1891 OID_AUTO, "ha_role", CTLTYPE_INT | CTLFLAG_RWTUN, 1892 softc, 0, ctl_ha_role_sysctl, "I", "HA role for this head"); 1893 1894 if (softc->is_single == 0) { 1895 ctl_frontend_register(&ha_frontend); 1896 if (ctl_ha_msg_init(softc) != CTL_HA_STATUS_SUCCESS) { 1897 printf("ctl_init: ctl_ha_msg_init failed.\n"); 1898 softc->is_single = 1; 1899 } else 1900 if (ctl_ha_msg_register(CTL_HA_CHAN_CTL, ctl_isc_event_handler) 1901 != CTL_HA_STATUS_SUCCESS) { 1902 printf("ctl_init: ctl_ha_msg_register failed.\n"); 1903 softc->is_single = 1; 1904 } 1905 } 1906 return (0); 1907} 1908 1909void 1910ctl_shutdown(void) 1911{ 1912 struct ctl_softc *softc = control_softc; 1913 struct ctl_lun *lun, *next_lun; 1914 1915 if (softc->is_single == 0) { 1916 ctl_ha_msg_shutdown(softc); 1917 if (ctl_ha_msg_deregister(CTL_HA_CHAN_CTL) 1918 != CTL_HA_STATUS_SUCCESS) 1919 printf("%s: ctl_ha_msg_deregister failed.\n", __func__); 1920 if (ctl_ha_msg_destroy(softc) != CTL_HA_STATUS_SUCCESS) 1921 printf("%s: ctl_ha_msg_destroy failed.\n", __func__); 1922 ctl_frontend_deregister(&ha_frontend); 1923 } 1924 1925 mtx_lock(&softc->ctl_lock); 1926 1927 /* 1928 * Free up each LUN. 1929 */ 1930 for (lun = STAILQ_FIRST(&softc->lun_list); lun != NULL; lun = next_lun){ 1931 next_lun = STAILQ_NEXT(lun, links); 1932 ctl_free_lun(lun); 1933 } 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 for (i = 0, lun = STAILQ_FIRST(&softc->lun_list); lun != NULL; 2786 i++, lun = STAILQ_NEXT(lun, 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; 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 switch (page_index->page_code & SMPH_PC_MASK) { 3842 case SMS_RW_ERROR_RECOVERY_PAGE: { 3843 if (page_index->subpage != SMS_SUBPAGE_PAGE_0) 3844 panic("subpage is incorrect!"); 3845 memcpy(&lun->mode_pages.rw_er_page[CTL_PAGE_CURRENT], 3846 &rw_er_page_default, 3847 sizeof(rw_er_page_default)); 3848 memcpy(&lun->mode_pages.rw_er_page[CTL_PAGE_CHANGEABLE], 3849 &rw_er_page_changeable, 3850 sizeof(rw_er_page_changeable)); 3851 memcpy(&lun->mode_pages.rw_er_page[CTL_PAGE_DEFAULT], 3852 &rw_er_page_default, 3853 sizeof(rw_er_page_default)); 3854 memcpy(&lun->mode_pages.rw_er_page[CTL_PAGE_SAVED], 3855 &rw_er_page_default, 3856 sizeof(rw_er_page_default)); 3857 page_index->page_data = 3858 (uint8_t *)lun->mode_pages.rw_er_page; 3859 break; 3860 } 3861 case SMS_FORMAT_DEVICE_PAGE: { 3862 struct scsi_format_page *format_page; 3863 3864 if (page_index->subpage != SMS_SUBPAGE_PAGE_0) 3865 panic("subpage is incorrect!"); 3866 3867 /* 3868 * Sectors per track are set above. Bytes per 3869 * sector need to be set here on a per-LUN basis. 3870 */ 3871 memcpy(&lun->mode_pages.format_page[CTL_PAGE_CURRENT], 3872 &format_page_default, 3873 sizeof(format_page_default)); 3874 memcpy(&lun->mode_pages.format_page[ 3875 CTL_PAGE_CHANGEABLE], &format_page_changeable, 3876 sizeof(format_page_changeable)); 3877 memcpy(&lun->mode_pages.format_page[CTL_PAGE_DEFAULT], 3878 &format_page_default, 3879 sizeof(format_page_default)); 3880 memcpy(&lun->mode_pages.format_page[CTL_PAGE_SAVED], 3881 &format_page_default, 3882 sizeof(format_page_default)); 3883 3884 format_page = &lun->mode_pages.format_page[ 3885 CTL_PAGE_CURRENT]; 3886 scsi_ulto2b(lun->be_lun->blocksize, 3887 format_page->bytes_per_sector); 3888 3889 format_page = &lun->mode_pages.format_page[ 3890 CTL_PAGE_DEFAULT]; 3891 scsi_ulto2b(lun->be_lun->blocksize, 3892 format_page->bytes_per_sector); 3893 3894 format_page = &lun->mode_pages.format_page[ 3895 CTL_PAGE_SAVED]; 3896 scsi_ulto2b(lun->be_lun->blocksize, 3897 format_page->bytes_per_sector); 3898 3899 page_index->page_data = 3900 (uint8_t *)lun->mode_pages.format_page; 3901 break; 3902 } 3903 case SMS_RIGID_DISK_PAGE: { 3904 struct scsi_rigid_disk_page *rigid_disk_page; 3905 uint32_t sectors_per_cylinder; 3906 uint64_t cylinders; 3907#ifndef __XSCALE__ 3908 int shift; 3909#endif /* !__XSCALE__ */ 3910 3911 if (page_index->subpage != SMS_SUBPAGE_PAGE_0) 3912 panic("invalid subpage value %d", 3913 page_index->subpage); 3914 3915 /* 3916 * Rotation rate and sectors per track are set 3917 * above. We calculate the cylinders here based on 3918 * capacity. Due to the number of heads and 3919 * sectors per track we're using, smaller arrays 3920 * may turn out to have 0 cylinders. Linux and 3921 * FreeBSD don't pay attention to these mode pages 3922 * to figure out capacity, but Solaris does. It 3923 * seems to deal with 0 cylinders just fine, and 3924 * works out a fake geometry based on the capacity. 3925 */ 3926 memcpy(&lun->mode_pages.rigid_disk_page[ 3927 CTL_PAGE_DEFAULT], &rigid_disk_page_default, 3928 sizeof(rigid_disk_page_default)); 3929 memcpy(&lun->mode_pages.rigid_disk_page[ 3930 CTL_PAGE_CHANGEABLE],&rigid_disk_page_changeable, 3931 sizeof(rigid_disk_page_changeable)); 3932 3933 sectors_per_cylinder = CTL_DEFAULT_SECTORS_PER_TRACK * 3934 CTL_DEFAULT_HEADS; 3935 3936 /* 3937 * The divide method here will be more accurate, 3938 * probably, but results in floating point being 3939 * used in the kernel on i386 (__udivdi3()). On the 3940 * XScale, though, __udivdi3() is implemented in 3941 * software. 3942 * 3943 * The shift method for cylinder calculation is 3944 * accurate if sectors_per_cylinder is a power of 3945 * 2. Otherwise it might be slightly off -- you 3946 * might have a bit of a truncation problem. 3947 */ 3948#ifdef __XSCALE__ 3949 cylinders = (lun->be_lun->maxlba + 1) / 3950 sectors_per_cylinder; 3951#else 3952 for (shift = 31; shift > 0; shift--) { 3953 if (sectors_per_cylinder & (1 << shift)) 3954 break; 3955 } 3956 cylinders = (lun->be_lun->maxlba + 1) >> shift; 3957#endif 3958 3959 /* 3960 * We've basically got 3 bytes, or 24 bits for the 3961 * cylinder size in the mode page. If we're over, 3962 * just round down to 2^24. 3963 */ 3964 if (cylinders > 0xffffff) 3965 cylinders = 0xffffff; 3966 3967 rigid_disk_page = &lun->mode_pages.rigid_disk_page[ 3968 CTL_PAGE_DEFAULT]; 3969 scsi_ulto3b(cylinders, rigid_disk_page->cylinders); 3970 3971 if ((value = ctl_get_opt(&lun->be_lun->options, 3972 "rpm")) != NULL) { 3973 scsi_ulto2b(strtol(value, NULL, 0), 3974 rigid_disk_page->rotation_rate); 3975 } 3976 3977 memcpy(&lun->mode_pages.rigid_disk_page[CTL_PAGE_CURRENT], 3978 &lun->mode_pages.rigid_disk_page[CTL_PAGE_DEFAULT], 3979 sizeof(rigid_disk_page_default)); 3980 memcpy(&lun->mode_pages.rigid_disk_page[CTL_PAGE_SAVED], 3981 &lun->mode_pages.rigid_disk_page[CTL_PAGE_DEFAULT], 3982 sizeof(rigid_disk_page_default)); 3983 3984 page_index->page_data = 3985 (uint8_t *)lun->mode_pages.rigid_disk_page; 3986 break; 3987 } 3988 case SMS_CACHING_PAGE: { 3989 struct scsi_caching_page *caching_page; 3990 3991 if (page_index->subpage != SMS_SUBPAGE_PAGE_0) 3992 panic("invalid subpage value %d", 3993 page_index->subpage); 3994 memcpy(&lun->mode_pages.caching_page[CTL_PAGE_DEFAULT], 3995 &caching_page_default, 3996 sizeof(caching_page_default)); 3997 memcpy(&lun->mode_pages.caching_page[ 3998 CTL_PAGE_CHANGEABLE], &caching_page_changeable, 3999 sizeof(caching_page_changeable)); 4000 memcpy(&lun->mode_pages.caching_page[CTL_PAGE_SAVED], 4001 &caching_page_default, 4002 sizeof(caching_page_default)); 4003 caching_page = &lun->mode_pages.caching_page[ 4004 CTL_PAGE_SAVED]; 4005 value = ctl_get_opt(&lun->be_lun->options, "writecache"); 4006 if (value != NULL && strcmp(value, "off") == 0) 4007 caching_page->flags1 &= ~SCP_WCE; 4008 value = ctl_get_opt(&lun->be_lun->options, "readcache"); 4009 if (value != NULL && strcmp(value, "off") == 0) 4010 caching_page->flags1 |= SCP_RCD; 4011 memcpy(&lun->mode_pages.caching_page[CTL_PAGE_CURRENT], 4012 &lun->mode_pages.caching_page[CTL_PAGE_SAVED], 4013 sizeof(caching_page_default)); 4014 page_index->page_data = 4015 (uint8_t *)lun->mode_pages.caching_page; 4016 break; 4017 } 4018 case SMS_CONTROL_MODE_PAGE: { 4019 switch (page_index->subpage) { 4020 case SMS_SUBPAGE_PAGE_0: { 4021 struct scsi_control_page *control_page; 4022 4023 memcpy(&lun->mode_pages.control_page[ 4024 CTL_PAGE_DEFAULT], 4025 &control_page_default, 4026 sizeof(control_page_default)); 4027 memcpy(&lun->mode_pages.control_page[ 4028 CTL_PAGE_CHANGEABLE], 4029 &control_page_changeable, 4030 sizeof(control_page_changeable)); 4031 memcpy(&lun->mode_pages.control_page[ 4032 CTL_PAGE_SAVED], 4033 &control_page_default, 4034 sizeof(control_page_default)); 4035 control_page = &lun->mode_pages.control_page[ 4036 CTL_PAGE_SAVED]; 4037 value = ctl_get_opt(&lun->be_lun->options, 4038 "reordering"); 4039 if (value != NULL && 4040 strcmp(value, "unrestricted") == 0) { 4041 control_page->queue_flags &= 4042 ~SCP_QUEUE_ALG_MASK; 4043 control_page->queue_flags |= 4044 SCP_QUEUE_ALG_UNRESTRICTED; 4045 } 4046 memcpy(&lun->mode_pages.control_page[ 4047 CTL_PAGE_CURRENT], 4048 &lun->mode_pages.control_page[ 4049 CTL_PAGE_SAVED], 4050 sizeof(control_page_default)); 4051 page_index->page_data = 4052 (uint8_t *)lun->mode_pages.control_page; 4053 break; 4054 } 4055 case 0x01: 4056 memcpy(&lun->mode_pages.control_ext_page[ 4057 CTL_PAGE_DEFAULT], 4058 &control_ext_page_default, 4059 sizeof(control_ext_page_default)); 4060 memcpy(&lun->mode_pages.control_ext_page[ 4061 CTL_PAGE_CHANGEABLE], 4062 &control_ext_page_changeable, 4063 sizeof(control_ext_page_changeable)); 4064 memcpy(&lun->mode_pages.control_ext_page[ 4065 CTL_PAGE_SAVED], 4066 &control_ext_page_default, 4067 sizeof(control_ext_page_default)); 4068 memcpy(&lun->mode_pages.control_ext_page[ 4069 CTL_PAGE_CURRENT], 4070 &lun->mode_pages.control_ext_page[ 4071 CTL_PAGE_SAVED], 4072 sizeof(control_ext_page_default)); 4073 page_index->page_data = 4074 (uint8_t *)lun->mode_pages.control_ext_page; 4075 break; 4076 } 4077 break; 4078 } 4079 case SMS_INFO_EXCEPTIONS_PAGE: { 4080 switch (page_index->subpage) { 4081 case SMS_SUBPAGE_PAGE_0: 4082 memcpy(&lun->mode_pages.ie_page[CTL_PAGE_CURRENT], 4083 &ie_page_default, 4084 sizeof(ie_page_default)); 4085 memcpy(&lun->mode_pages.ie_page[ 4086 CTL_PAGE_CHANGEABLE], &ie_page_changeable, 4087 sizeof(ie_page_changeable)); 4088 memcpy(&lun->mode_pages.ie_page[CTL_PAGE_DEFAULT], 4089 &ie_page_default, 4090 sizeof(ie_page_default)); 4091 memcpy(&lun->mode_pages.ie_page[CTL_PAGE_SAVED], 4092 &ie_page_default, 4093 sizeof(ie_page_default)); 4094 page_index->page_data = 4095 (uint8_t *)lun->mode_pages.ie_page; 4096 break; 4097 case 0x02: { 4098 struct ctl_logical_block_provisioning_page *page; 4099 4100 memcpy(&lun->mode_pages.lbp_page[CTL_PAGE_DEFAULT], 4101 &lbp_page_default, 4102 sizeof(lbp_page_default)); 4103 memcpy(&lun->mode_pages.lbp_page[ 4104 CTL_PAGE_CHANGEABLE], &lbp_page_changeable, 4105 sizeof(lbp_page_changeable)); 4106 memcpy(&lun->mode_pages.lbp_page[CTL_PAGE_SAVED], 4107 &lbp_page_default, 4108 sizeof(lbp_page_default)); 4109 page = &lun->mode_pages.lbp_page[CTL_PAGE_SAVED]; 4110 value = ctl_get_opt(&lun->be_lun->options, 4111 "avail-threshold"); 4112 if (value != NULL && 4113 ctl_expand_number(value, &ival) == 0) { 4114 page->descr[0].flags |= SLBPPD_ENABLED | 4115 SLBPPD_ARMING_DEC; 4116 if (lun->be_lun->blocksize) 4117 ival /= lun->be_lun->blocksize; 4118 else 4119 ival /= 512; 4120 scsi_ulto4b(ival >> CTL_LBP_EXPONENT, 4121 page->descr[0].count); 4122 } 4123 value = ctl_get_opt(&lun->be_lun->options, 4124 "used-threshold"); 4125 if (value != NULL && 4126 ctl_expand_number(value, &ival) == 0) { 4127 page->descr[1].flags |= SLBPPD_ENABLED | 4128 SLBPPD_ARMING_INC; 4129 if (lun->be_lun->blocksize) 4130 ival /= lun->be_lun->blocksize; 4131 else 4132 ival /= 512; 4133 scsi_ulto4b(ival >> CTL_LBP_EXPONENT, 4134 page->descr[1].count); 4135 } 4136 value = ctl_get_opt(&lun->be_lun->options, 4137 "pool-avail-threshold"); 4138 if (value != NULL && 4139 ctl_expand_number(value, &ival) == 0) { 4140 page->descr[2].flags |= SLBPPD_ENABLED | 4141 SLBPPD_ARMING_DEC; 4142 if (lun->be_lun->blocksize) 4143 ival /= lun->be_lun->blocksize; 4144 else 4145 ival /= 512; 4146 scsi_ulto4b(ival >> CTL_LBP_EXPONENT, 4147 page->descr[2].count); 4148 } 4149 value = ctl_get_opt(&lun->be_lun->options, 4150 "pool-used-threshold"); 4151 if (value != NULL && 4152 ctl_expand_number(value, &ival) == 0) { 4153 page->descr[3].flags |= SLBPPD_ENABLED | 4154 SLBPPD_ARMING_INC; 4155 if (lun->be_lun->blocksize) 4156 ival /= lun->be_lun->blocksize; 4157 else 4158 ival /= 512; 4159 scsi_ulto4b(ival >> CTL_LBP_EXPONENT, 4160 page->descr[3].count); 4161 } 4162 memcpy(&lun->mode_pages.lbp_page[CTL_PAGE_CURRENT], 4163 &lun->mode_pages.lbp_page[CTL_PAGE_SAVED], 4164 sizeof(lbp_page_default)); 4165 page_index->page_data = 4166 (uint8_t *)lun->mode_pages.lbp_page; 4167 }} 4168 break; 4169 } 4170 case SMS_CDDVD_CAPS_PAGE:{ 4171 memcpy(&lun->mode_pages.cddvd_page[CTL_PAGE_DEFAULT], 4172 &cddvd_page_default, 4173 sizeof(cddvd_page_default)); 4174 memcpy(&lun->mode_pages.cddvd_page[ 4175 CTL_PAGE_CHANGEABLE], &cddvd_page_changeable, 4176 sizeof(cddvd_page_changeable)); 4177 memcpy(&lun->mode_pages.cddvd_page[CTL_PAGE_SAVED], 4178 &cddvd_page_default, 4179 sizeof(cddvd_page_default)); 4180 memcpy(&lun->mode_pages.cddvd_page[CTL_PAGE_CURRENT], 4181 &lun->mode_pages.cddvd_page[CTL_PAGE_SAVED], 4182 sizeof(cddvd_page_default)); 4183 page_index->page_data = 4184 (uint8_t *)lun->mode_pages.cddvd_page; 4185 break; 4186 } 4187 case SMS_VENDOR_SPECIFIC_PAGE:{ 4188 switch (page_index->subpage) { 4189 case DBGCNF_SUBPAGE_CODE: { 4190 memcpy(&lun->mode_pages.debugconf_subpage[ 4191 CTL_PAGE_CURRENT], 4192 &debugconf_page_default, 4193 sizeof(debugconf_page_default)); 4194 memcpy(&lun->mode_pages.debugconf_subpage[ 4195 CTL_PAGE_CHANGEABLE], 4196 &debugconf_page_changeable, 4197 sizeof(debugconf_page_changeable)); 4198 memcpy(&lun->mode_pages.debugconf_subpage[ 4199 CTL_PAGE_DEFAULT], 4200 &debugconf_page_default, 4201 sizeof(debugconf_page_default)); 4202 memcpy(&lun->mode_pages.debugconf_subpage[ 4203 CTL_PAGE_SAVED], 4204 &debugconf_page_default, 4205 sizeof(debugconf_page_default)); 4206 page_index->page_data = 4207 (uint8_t *)lun->mode_pages.debugconf_subpage; 4208 break; 4209 } 4210 default: 4211 panic("invalid subpage value %d", 4212 page_index->subpage); 4213 break; 4214 } 4215 break; 4216 } 4217 default: 4218 panic("invalid page value %d", 4219 page_index->page_code & SMPH_PC_MASK); 4220 break; 4221 } 4222 } 4223 4224 return (CTL_RETVAL_COMPLETE); 4225} 4226 4227static int 4228ctl_init_log_page_index(struct ctl_lun *lun) 4229{ 4230 struct ctl_page_index *page_index; 4231 int i, j, k, prev; 4232 4233 memcpy(&lun->log_pages.index, log_page_index_template, 4234 sizeof(log_page_index_template)); 4235 4236 prev = -1; 4237 for (i = 0, j = 0, k = 0; i < CTL_NUM_LOG_PAGES; i++) { 4238 4239 page_index = &lun->log_pages.index[i]; 4240 if (lun->be_lun->lun_type == T_DIRECT && 4241 (page_index->page_flags & CTL_PAGE_FLAG_DIRECT) == 0) 4242 continue; 4243 if (lun->be_lun->lun_type == T_PROCESSOR && 4244 (page_index->page_flags & CTL_PAGE_FLAG_PROC) == 0) 4245 continue; 4246 if (lun->be_lun->lun_type == T_CDROM && 4247 (page_index->page_flags & CTL_PAGE_FLAG_CDROM) == 0) 4248 continue; 4249 4250 if (page_index->page_code == SLS_LOGICAL_BLOCK_PROVISIONING && 4251 lun->backend->lun_attr == NULL) 4252 continue; 4253 4254 if (page_index->page_code != prev) { 4255 lun->log_pages.pages_page[j] = page_index->page_code; 4256 prev = page_index->page_code; 4257 j++; 4258 } 4259 lun->log_pages.subpages_page[k*2] = page_index->page_code; 4260 lun->log_pages.subpages_page[k*2+1] = page_index->subpage; 4261 k++; 4262 } 4263 lun->log_pages.index[0].page_data = &lun->log_pages.pages_page[0]; 4264 lun->log_pages.index[0].page_len = j; 4265 lun->log_pages.index[1].page_data = &lun->log_pages.subpages_page[0]; 4266 lun->log_pages.index[1].page_len = k * 2; 4267 lun->log_pages.index[2].page_data = &lun->log_pages.lbp_page[0]; 4268 lun->log_pages.index[2].page_len = 12*CTL_NUM_LBP_PARAMS; 4269 lun->log_pages.index[3].page_data = (uint8_t *)&lun->log_pages.stat_page; 4270 lun->log_pages.index[3].page_len = sizeof(lun->log_pages.stat_page); 4271 4272 return (CTL_RETVAL_COMPLETE); 4273} 4274 4275static int 4276hex2bin(const char *str, uint8_t *buf, int buf_size) 4277{ 4278 int i; 4279 u_char c; 4280 4281 memset(buf, 0, buf_size); 4282 while (isspace(str[0])) 4283 str++; 4284 if (str[0] == '0' && (str[1] == 'x' || str[1] == 'X')) 4285 str += 2; 4286 buf_size *= 2; 4287 for (i = 0; str[i] != 0 && i < buf_size; i++) { 4288 c = str[i]; 4289 if (isdigit(c)) 4290 c -= '0'; 4291 else if (isalpha(c)) 4292 c -= isupper(c) ? 'A' - 10 : 'a' - 10; 4293 else 4294 break; 4295 if (c >= 16) 4296 break; 4297 if ((i & 1) == 0) 4298 buf[i / 2] |= (c << 4); 4299 else 4300 buf[i / 2] |= c; 4301 } 4302 return ((i + 1) / 2); 4303} 4304 4305/* 4306 * LUN allocation. 4307 * 4308 * Requirements: 4309 * - caller allocates and zeros LUN storage, or passes in a NULL LUN if he 4310 * wants us to allocate the LUN and he can block. 4311 * - ctl_softc is always set 4312 * - be_lun is set if the LUN has a backend (needed for disk LUNs) 4313 * 4314 * Returns 0 for success, non-zero (errno) for failure. 4315 */ 4316static int 4317ctl_alloc_lun(struct ctl_softc *ctl_softc, struct ctl_lun *ctl_lun, 4318 struct ctl_be_lun *const be_lun) 4319{ 4320 struct ctl_lun *nlun, *lun; 4321 struct scsi_vpd_id_descriptor *desc; 4322 struct scsi_vpd_id_t10 *t10id; 4323 const char *eui, *naa, *scsiname, *vendor, *value; 4324 int lun_number, i, lun_malloced; 4325 int devidlen, idlen1, idlen2 = 0, len; 4326 4327 if (be_lun == NULL) 4328 return (EINVAL); 4329 4330 /* 4331 * We currently only support Direct Access or Processor LUN types. 4332 */ 4333 switch (be_lun->lun_type) { 4334 case T_DIRECT: 4335 case T_PROCESSOR: 4336 case T_CDROM: 4337 break; 4338 case T_SEQUENTIAL: 4339 case T_CHANGER: 4340 default: 4341 be_lun->lun_config_status(be_lun->be_lun, 4342 CTL_LUN_CONFIG_FAILURE); 4343 break; 4344 } 4345 if (ctl_lun == NULL) { 4346 lun = malloc(sizeof(*lun), M_CTL, M_WAITOK); 4347 lun_malloced = 1; 4348 } else { 4349 lun_malloced = 0; 4350 lun = ctl_lun; 4351 } 4352 4353 memset(lun, 0, sizeof(*lun)); 4354 if (lun_malloced) 4355 lun->flags = CTL_LUN_MALLOCED; 4356 4357 /* Generate LUN ID. */ 4358 devidlen = max(CTL_DEVID_MIN_LEN, 4359 strnlen(be_lun->device_id, CTL_DEVID_LEN)); 4360 idlen1 = sizeof(*t10id) + devidlen; 4361 len = sizeof(struct scsi_vpd_id_descriptor) + idlen1; 4362 scsiname = ctl_get_opt(&be_lun->options, "scsiname"); 4363 if (scsiname != NULL) { 4364 idlen2 = roundup2(strlen(scsiname) + 1, 4); 4365 len += sizeof(struct scsi_vpd_id_descriptor) + idlen2; 4366 } 4367 eui = ctl_get_opt(&be_lun->options, "eui"); 4368 if (eui != NULL) { 4369 len += sizeof(struct scsi_vpd_id_descriptor) + 16; 4370 } 4371 naa = ctl_get_opt(&be_lun->options, "naa"); 4372 if (naa != NULL) { 4373 len += sizeof(struct scsi_vpd_id_descriptor) + 16; 4374 } 4375 lun->lun_devid = malloc(sizeof(struct ctl_devid) + len, 4376 M_CTL, M_WAITOK | M_ZERO); 4377 desc = (struct scsi_vpd_id_descriptor *)lun->lun_devid->data; 4378 desc->proto_codeset = SVPD_ID_CODESET_ASCII; 4379 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | SVPD_ID_TYPE_T10; 4380 desc->length = idlen1; 4381 t10id = (struct scsi_vpd_id_t10 *)&desc->identifier[0]; 4382 memset(t10id->vendor, ' ', sizeof(t10id->vendor)); 4383 if ((vendor = ctl_get_opt(&be_lun->options, "vendor")) == NULL) { 4384 strncpy((char *)t10id->vendor, CTL_VENDOR, sizeof(t10id->vendor)); 4385 } else { 4386 strncpy(t10id->vendor, vendor, 4387 min(sizeof(t10id->vendor), strlen(vendor))); 4388 } 4389 strncpy((char *)t10id->vendor_spec_id, 4390 (char *)be_lun->device_id, devidlen); 4391 if (scsiname != NULL) { 4392 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 4393 desc->length); 4394 desc->proto_codeset = SVPD_ID_CODESET_UTF8; 4395 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | 4396 SVPD_ID_TYPE_SCSI_NAME; 4397 desc->length = idlen2; 4398 strlcpy(desc->identifier, scsiname, idlen2); 4399 } 4400 if (eui != NULL) { 4401 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 4402 desc->length); 4403 desc->proto_codeset = SVPD_ID_CODESET_BINARY; 4404 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | 4405 SVPD_ID_TYPE_EUI64; 4406 desc->length = hex2bin(eui, desc->identifier, 16); 4407 desc->length = desc->length > 12 ? 16 : 4408 (desc->length > 8 ? 12 : 8); 4409 len -= 16 - desc->length; 4410 } 4411 if (naa != 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_NAA; 4417 desc->length = hex2bin(naa, desc->identifier, 16); 4418 desc->length = desc->length > 8 ? 16 : 8; 4419 len -= 16 - desc->length; 4420 } 4421 lun->lun_devid->len = len; 4422 4423 mtx_lock(&ctl_softc->ctl_lock); 4424 /* 4425 * See if the caller requested a particular LUN number. If so, see 4426 * if it is available. Otherwise, allocate the first available LUN. 4427 */ 4428 if (be_lun->flags & CTL_LUN_FLAG_ID_REQ) { 4429 if ((be_lun->req_lun_id > (CTL_MAX_LUNS - 1)) 4430 || (ctl_is_set(ctl_softc->ctl_lun_mask, be_lun->req_lun_id))) { 4431 mtx_unlock(&ctl_softc->ctl_lock); 4432 if (be_lun->req_lun_id > (CTL_MAX_LUNS - 1)) { 4433 printf("ctl: requested LUN ID %d is higher " 4434 "than CTL_MAX_LUNS - 1 (%d)\n", 4435 be_lun->req_lun_id, CTL_MAX_LUNS - 1); 4436 } else { 4437 /* 4438 * XXX KDM return an error, or just assign 4439 * another LUN ID in this case?? 4440 */ 4441 printf("ctl: requested LUN ID %d is already " 4442 "in use\n", be_lun->req_lun_id); 4443 } 4444 if (lun->flags & CTL_LUN_MALLOCED) 4445 free(lun, M_CTL); 4446 be_lun->lun_config_status(be_lun->be_lun, 4447 CTL_LUN_CONFIG_FAILURE); 4448 return (ENOSPC); 4449 } 4450 lun_number = be_lun->req_lun_id; 4451 } else { 4452 lun_number = ctl_ffz(ctl_softc->ctl_lun_mask, 0, CTL_MAX_LUNS); 4453 if (lun_number == -1) { 4454 mtx_unlock(&ctl_softc->ctl_lock); 4455 printf("ctl: can't allocate LUN, out of LUNs\n"); 4456 if (lun->flags & CTL_LUN_MALLOCED) 4457 free(lun, M_CTL); 4458 be_lun->lun_config_status(be_lun->be_lun, 4459 CTL_LUN_CONFIG_FAILURE); 4460 return (ENOSPC); 4461 } 4462 } 4463 ctl_set_mask(ctl_softc->ctl_lun_mask, lun_number); 4464 4465 mtx_init(&lun->lun_lock, "CTL LUN", NULL, MTX_DEF); 4466 lun->lun = lun_number; 4467 lun->be_lun = be_lun; 4468 /* 4469 * The processor LUN is always enabled. Disk LUNs come on line 4470 * disabled, and must be enabled by the backend. 4471 */ 4472 lun->flags |= CTL_LUN_DISABLED; 4473 lun->backend = be_lun->be; 4474 be_lun->ctl_lun = lun; 4475 be_lun->lun_id = lun_number; 4476 atomic_add_int(&be_lun->be->num_luns, 1); 4477 if (be_lun->flags & CTL_LUN_FLAG_EJECTED) 4478 lun->flags |= CTL_LUN_EJECTED; 4479 if (be_lun->flags & CTL_LUN_FLAG_NO_MEDIA) 4480 lun->flags |= CTL_LUN_NO_MEDIA; 4481 if (be_lun->flags & CTL_LUN_FLAG_STOPPED) 4482 lun->flags |= CTL_LUN_STOPPED; 4483 4484 if (be_lun->flags & CTL_LUN_FLAG_PRIMARY) 4485 lun->flags |= CTL_LUN_PRIMARY_SC; 4486 4487 value = ctl_get_opt(&be_lun->options, "removable"); 4488 if (value != NULL) { 4489 if (strcmp(value, "on") == 0) 4490 lun->flags |= CTL_LUN_REMOVABLE; 4491 } else if (be_lun->lun_type == T_CDROM) 4492 lun->flags |= CTL_LUN_REMOVABLE; 4493 4494 lun->ctl_softc = ctl_softc; 4495#ifdef CTL_TIME_IO 4496 lun->last_busy = getsbinuptime(); 4497#endif 4498 TAILQ_INIT(&lun->ooa_queue); 4499 TAILQ_INIT(&lun->blocked_queue); 4500 STAILQ_INIT(&lun->error_list); 4501 ctl_tpc_lun_init(lun); 4502 4503 /* 4504 * Initialize the mode and log page index. 4505 */ 4506 ctl_init_page_index(lun); 4507 ctl_init_log_page_index(lun); 4508 4509 /* 4510 * Now, before we insert this lun on the lun list, set the lun 4511 * inventory changed UA for all other luns. 4512 */ 4513 STAILQ_FOREACH(nlun, &ctl_softc->lun_list, links) { 4514 mtx_lock(&nlun->lun_lock); 4515 ctl_est_ua_all(nlun, -1, CTL_UA_LUN_CHANGE); 4516 mtx_unlock(&nlun->lun_lock); 4517 } 4518 4519 STAILQ_INSERT_TAIL(&ctl_softc->lun_list, lun, links); 4520 4521 ctl_softc->ctl_luns[lun_number] = lun; 4522 4523 ctl_softc->num_luns++; 4524 4525 /* Setup statistics gathering */ 4526 lun->stats.device_type = be_lun->lun_type; 4527 lun->stats.lun_number = lun_number; 4528 lun->stats.blocksize = be_lun->blocksize; 4529 if (be_lun->blocksize == 0) 4530 lun->stats.flags = CTL_LUN_STATS_NO_BLOCKSIZE; 4531 for (i = 0;i < CTL_MAX_PORTS;i++) 4532 lun->stats.ports[i].targ_port = i; 4533 4534 mtx_unlock(&ctl_softc->ctl_lock); 4535 4536 lun->be_lun->lun_config_status(lun->be_lun->be_lun, CTL_LUN_CONFIG_OK); 4537 return (0); 4538} 4539 4540/* 4541 * Delete a LUN. 4542 * Assumptions: 4543 * - LUN has already been marked invalid and any pending I/O has been taken 4544 * care of. 4545 */ 4546static int 4547ctl_free_lun(struct ctl_lun *lun) 4548{ 4549 struct ctl_softc *softc; 4550 struct ctl_lun *nlun; 4551 int i; 4552 4553 softc = lun->ctl_softc; 4554 4555 mtx_assert(&softc->ctl_lock, MA_OWNED); 4556 4557 STAILQ_REMOVE(&softc->lun_list, lun, ctl_lun, links); 4558 4559 ctl_clear_mask(softc->ctl_lun_mask, lun->lun); 4560 4561 softc->ctl_luns[lun->lun] = NULL; 4562 4563 if (!TAILQ_EMPTY(&lun->ooa_queue)) 4564 panic("Freeing a LUN %p with outstanding I/O!!\n", lun); 4565 4566 softc->num_luns--; 4567 4568 /* 4569 * Tell the backend to free resources, if this LUN has a backend. 4570 */ 4571 atomic_subtract_int(&lun->be_lun->be->num_luns, 1); 4572 lun->be_lun->lun_shutdown(lun->be_lun->be_lun); 4573 4574 ctl_tpc_lun_shutdown(lun); 4575 mtx_destroy(&lun->lun_lock); 4576 free(lun->lun_devid, M_CTL); 4577 for (i = 0; i < CTL_MAX_PORTS; i++) 4578 free(lun->pending_ua[i], M_CTL); 4579 for (i = 0; i < CTL_MAX_PORTS; i++) 4580 free(lun->pr_keys[i], M_CTL); 4581 free(lun->write_buffer, M_CTL); 4582 if (lun->flags & CTL_LUN_MALLOCED) 4583 free(lun, M_CTL); 4584 4585 STAILQ_FOREACH(nlun, &softc->lun_list, links) { 4586 mtx_lock(&nlun->lun_lock); 4587 ctl_est_ua_all(nlun, -1, CTL_UA_LUN_CHANGE); 4588 mtx_unlock(&nlun->lun_lock); 4589 } 4590 4591 return (0); 4592} 4593 4594static void 4595ctl_create_lun(struct ctl_be_lun *be_lun) 4596{ 4597 4598 /* 4599 * ctl_alloc_lun() should handle all potential failure cases. 4600 */ 4601 ctl_alloc_lun(control_softc, NULL, be_lun); 4602} 4603 4604int 4605ctl_add_lun(struct ctl_be_lun *be_lun) 4606{ 4607 struct ctl_softc *softc = control_softc; 4608 4609 mtx_lock(&softc->ctl_lock); 4610 STAILQ_INSERT_TAIL(&softc->pending_lun_queue, be_lun, links); 4611 mtx_unlock(&softc->ctl_lock); 4612 wakeup(&softc->pending_lun_queue); 4613 4614 return (0); 4615} 4616 4617int 4618ctl_enable_lun(struct ctl_be_lun *be_lun) 4619{ 4620 struct ctl_softc *softc; 4621 struct ctl_port *port, *nport; 4622 struct ctl_lun *lun; 4623 int retval; 4624 4625 lun = (struct ctl_lun *)be_lun->ctl_lun; 4626 softc = lun->ctl_softc; 4627 4628 mtx_lock(&softc->ctl_lock); 4629 mtx_lock(&lun->lun_lock); 4630 if ((lun->flags & CTL_LUN_DISABLED) == 0) { 4631 /* 4632 * eh? Why did we get called if the LUN is already 4633 * enabled? 4634 */ 4635 mtx_unlock(&lun->lun_lock); 4636 mtx_unlock(&softc->ctl_lock); 4637 return (0); 4638 } 4639 lun->flags &= ~CTL_LUN_DISABLED; 4640 mtx_unlock(&lun->lun_lock); 4641 4642 for (port = STAILQ_FIRST(&softc->port_list); port != NULL; port = nport) { 4643 nport = STAILQ_NEXT(port, links); 4644 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0 || 4645 port->lun_map != NULL || port->lun_enable == NULL) 4646 continue; 4647 4648 /* 4649 * Drop the lock while we call the FETD's enable routine. 4650 * This can lead to a callback into CTL (at least in the 4651 * case of the internal initiator frontend. 4652 */ 4653 mtx_unlock(&softc->ctl_lock); 4654 retval = port->lun_enable(port->targ_lun_arg, lun->lun); 4655 mtx_lock(&softc->ctl_lock); 4656 if (retval != 0) { 4657 printf("%s: FETD %s port %d returned error " 4658 "%d for lun_enable on lun %jd\n", 4659 __func__, port->port_name, port->targ_port, 4660 retval, (intmax_t)lun->lun); 4661 } 4662 } 4663 4664 mtx_unlock(&softc->ctl_lock); 4665 ctl_isc_announce_lun(lun); 4666 4667 return (0); 4668} 4669 4670int 4671ctl_disable_lun(struct ctl_be_lun *be_lun) 4672{ 4673 struct ctl_softc *softc; 4674 struct ctl_port *port; 4675 struct ctl_lun *lun; 4676 int retval; 4677 4678 lun = (struct ctl_lun *)be_lun->ctl_lun; 4679 softc = lun->ctl_softc; 4680 4681 mtx_lock(&softc->ctl_lock); 4682 mtx_lock(&lun->lun_lock); 4683 if (lun->flags & CTL_LUN_DISABLED) { 4684 mtx_unlock(&lun->lun_lock); 4685 mtx_unlock(&softc->ctl_lock); 4686 return (0); 4687 } 4688 lun->flags |= CTL_LUN_DISABLED; 4689 mtx_unlock(&lun->lun_lock); 4690 4691 STAILQ_FOREACH(port, &softc->port_list, links) { 4692 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0 || 4693 port->lun_map != NULL || port->lun_disable == NULL) 4694 continue; 4695 4696 /* 4697 * Drop the lock before we call the frontend's disable 4698 * routine, to avoid lock order reversals. 4699 * 4700 * XXX KDM what happens if the frontend list changes while 4701 * we're traversing it? It's unlikely, but should be handled. 4702 */ 4703 mtx_unlock(&softc->ctl_lock); 4704 retval = port->lun_disable(port->targ_lun_arg, lun->lun); 4705 mtx_lock(&softc->ctl_lock); 4706 if (retval != 0) { 4707 printf("%s: FETD %s port %d returned error " 4708 "%d for lun_disable on lun %jd\n", 4709 __func__, port->port_name, port->targ_port, 4710 retval, (intmax_t)lun->lun); 4711 } 4712 } 4713 4714 mtx_unlock(&softc->ctl_lock); 4715 ctl_isc_announce_lun(lun); 4716 4717 return (0); 4718} 4719 4720int 4721ctl_start_lun(struct ctl_be_lun *be_lun) 4722{ 4723 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 4724 4725 mtx_lock(&lun->lun_lock); 4726 lun->flags &= ~CTL_LUN_STOPPED; 4727 mtx_unlock(&lun->lun_lock); 4728 return (0); 4729} 4730 4731int 4732ctl_stop_lun(struct ctl_be_lun *be_lun) 4733{ 4734 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 4735 4736 mtx_lock(&lun->lun_lock); 4737 lun->flags |= CTL_LUN_STOPPED; 4738 mtx_unlock(&lun->lun_lock); 4739 return (0); 4740} 4741 4742int 4743ctl_lun_no_media(struct ctl_be_lun *be_lun) 4744{ 4745 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 4746 4747 mtx_lock(&lun->lun_lock); 4748 lun->flags |= CTL_LUN_NO_MEDIA; 4749 mtx_unlock(&lun->lun_lock); 4750 return (0); 4751} 4752 4753int 4754ctl_lun_has_media(struct ctl_be_lun *be_lun) 4755{ 4756 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 4757 union ctl_ha_msg msg; 4758 4759 mtx_lock(&lun->lun_lock); 4760 lun->flags &= ~(CTL_LUN_NO_MEDIA | CTL_LUN_EJECTED); 4761 if (lun->flags & CTL_LUN_REMOVABLE) 4762 ctl_est_ua_all(lun, -1, CTL_UA_MEDIUM_CHANGE); 4763 mtx_unlock(&lun->lun_lock); 4764 if ((lun->flags & CTL_LUN_REMOVABLE) && 4765 lun->ctl_softc->ha_mode == CTL_HA_MODE_XFER) { 4766 bzero(&msg.ua, sizeof(msg.ua)); 4767 msg.hdr.msg_type = CTL_MSG_UA; 4768 msg.hdr.nexus.initid = -1; 4769 msg.hdr.nexus.targ_port = -1; 4770 msg.hdr.nexus.targ_lun = lun->lun; 4771 msg.hdr.nexus.targ_mapped_lun = lun->lun; 4772 msg.ua.ua_all = 1; 4773 msg.ua.ua_set = 1; 4774 msg.ua.ua_type = CTL_UA_MEDIUM_CHANGE; 4775 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, sizeof(msg.ua), 4776 M_WAITOK); 4777 } 4778 return (0); 4779} 4780 4781int 4782ctl_lun_ejected(struct ctl_be_lun *be_lun) 4783{ 4784 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 4785 4786 mtx_lock(&lun->lun_lock); 4787 lun->flags |= CTL_LUN_EJECTED; 4788 mtx_unlock(&lun->lun_lock); 4789 return (0); 4790} 4791 4792int 4793ctl_lun_primary(struct ctl_be_lun *be_lun) 4794{ 4795 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 4796 4797 mtx_lock(&lun->lun_lock); 4798 lun->flags |= CTL_LUN_PRIMARY_SC; 4799 ctl_est_ua_all(lun, -1, CTL_UA_ASYM_ACC_CHANGE); 4800 mtx_unlock(&lun->lun_lock); 4801 ctl_isc_announce_lun(lun); 4802 return (0); 4803} 4804 4805int 4806ctl_lun_secondary(struct ctl_be_lun *be_lun) 4807{ 4808 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 4809 4810 mtx_lock(&lun->lun_lock); 4811 lun->flags &= ~CTL_LUN_PRIMARY_SC; 4812 ctl_est_ua_all(lun, -1, CTL_UA_ASYM_ACC_CHANGE); 4813 mtx_unlock(&lun->lun_lock); 4814 ctl_isc_announce_lun(lun); 4815 return (0); 4816} 4817 4818int 4819ctl_invalidate_lun(struct ctl_be_lun *be_lun) 4820{ 4821 struct ctl_softc *softc; 4822 struct ctl_lun *lun; 4823 4824 lun = (struct ctl_lun *)be_lun->ctl_lun; 4825 softc = lun->ctl_softc; 4826 4827 mtx_lock(&lun->lun_lock); 4828 4829 /* 4830 * The LUN needs to be disabled before it can be marked invalid. 4831 */ 4832 if ((lun->flags & CTL_LUN_DISABLED) == 0) { 4833 mtx_unlock(&lun->lun_lock); 4834 return (-1); 4835 } 4836 /* 4837 * Mark the LUN invalid. 4838 */ 4839 lun->flags |= CTL_LUN_INVALID; 4840 4841 /* 4842 * If there is nothing in the OOA queue, go ahead and free the LUN. 4843 * If we have something in the OOA queue, we'll free it when the 4844 * last I/O completes. 4845 */ 4846 if (TAILQ_EMPTY(&lun->ooa_queue)) { 4847 mtx_unlock(&lun->lun_lock); 4848 mtx_lock(&softc->ctl_lock); 4849 ctl_free_lun(lun); 4850 mtx_unlock(&softc->ctl_lock); 4851 } else 4852 mtx_unlock(&lun->lun_lock); 4853 4854 return (0); 4855} 4856 4857void 4858ctl_lun_capacity_changed(struct ctl_be_lun *be_lun) 4859{ 4860 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 4861 union ctl_ha_msg msg; 4862 4863 mtx_lock(&lun->lun_lock); 4864 ctl_est_ua_all(lun, -1, CTL_UA_CAPACITY_CHANGE); 4865 mtx_unlock(&lun->lun_lock); 4866 if (lun->ctl_softc->ha_mode == CTL_HA_MODE_XFER) { 4867 /* Send msg to other side. */ 4868 bzero(&msg.ua, sizeof(msg.ua)); 4869 msg.hdr.msg_type = CTL_MSG_UA; 4870 msg.hdr.nexus.initid = -1; 4871 msg.hdr.nexus.targ_port = -1; 4872 msg.hdr.nexus.targ_lun = lun->lun; 4873 msg.hdr.nexus.targ_mapped_lun = lun->lun; 4874 msg.ua.ua_all = 1; 4875 msg.ua.ua_set = 1; 4876 msg.ua.ua_type = CTL_UA_CAPACITY_CHANGE; 4877 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, sizeof(msg.ua), 4878 M_WAITOK); 4879 } 4880} 4881 4882/* 4883 * Backend "memory move is complete" callback for requests that never 4884 * make it down to say RAIDCore's configuration code. 4885 */ 4886int 4887ctl_config_move_done(union ctl_io *io) 4888{ 4889 int retval; 4890 4891 CTL_DEBUG_PRINT(("ctl_config_move_done\n")); 4892 KASSERT(io->io_hdr.io_type == CTL_IO_SCSI, 4893 ("Config I/O type isn't CTL_IO_SCSI (%d)!", io->io_hdr.io_type)); 4894 4895 if ((io->io_hdr.port_status != 0) && 4896 ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE || 4897 (io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS)) { 4898 /* 4899 * For hardware error sense keys, the sense key 4900 * specific value is defined to be a retry count, 4901 * but we use it to pass back an internal FETD 4902 * error code. XXX KDM Hopefully the FETD is only 4903 * using 16 bits for an error code, since that's 4904 * all the space we have in the sks field. 4905 */ 4906 ctl_set_internal_failure(&io->scsiio, 4907 /*sks_valid*/ 1, 4908 /*retry_count*/ 4909 io->io_hdr.port_status); 4910 } 4911 4912 if (ctl_debug & CTL_DEBUG_CDB_DATA) 4913 ctl_data_print(io); 4914 if (((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_IN) || 4915 ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE && 4916 (io->io_hdr.status & CTL_STATUS_MASK) != CTL_SUCCESS) || 4917 ((io->io_hdr.flags & CTL_FLAG_ABORT) != 0)) { 4918 /* 4919 * XXX KDM just assuming a single pointer here, and not a 4920 * S/G list. If we start using S/G lists for config data, 4921 * we'll need to know how to clean them up here as well. 4922 */ 4923 if (io->io_hdr.flags & CTL_FLAG_ALLOCATED) 4924 free(io->scsiio.kern_data_ptr, M_CTL); 4925 ctl_done(io); 4926 retval = CTL_RETVAL_COMPLETE; 4927 } else { 4928 /* 4929 * XXX KDM now we need to continue data movement. Some 4930 * options: 4931 * - call ctl_scsiio() again? We don't do this for data 4932 * writes, because for those at least we know ahead of 4933 * time where the write will go and how long it is. For 4934 * config writes, though, that information is largely 4935 * contained within the write itself, thus we need to 4936 * parse out the data again. 4937 * 4938 * - Call some other function once the data is in? 4939 */ 4940 4941 /* 4942 * XXX KDM call ctl_scsiio() again for now, and check flag 4943 * bits to see whether we're allocated or not. 4944 */ 4945 retval = ctl_scsiio(&io->scsiio); 4946 } 4947 return (retval); 4948} 4949 4950/* 4951 * This gets called by a backend driver when it is done with a 4952 * data_submit method. 4953 */ 4954void 4955ctl_data_submit_done(union ctl_io *io) 4956{ 4957 /* 4958 * If the IO_CONT flag is set, we need to call the supplied 4959 * function to continue processing the I/O, instead of completing 4960 * the I/O just yet. 4961 * 4962 * If there is an error, though, we don't want to keep processing. 4963 * Instead, just send status back to the initiator. 4964 */ 4965 if ((io->io_hdr.flags & CTL_FLAG_IO_CONT) && 4966 (io->io_hdr.flags & CTL_FLAG_ABORT) == 0 && 4967 ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE || 4968 (io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS)) { 4969 io->scsiio.io_cont(io); 4970 return; 4971 } 4972 ctl_done(io); 4973} 4974 4975/* 4976 * This gets called by a backend driver when it is done with a 4977 * configuration write. 4978 */ 4979void 4980ctl_config_write_done(union ctl_io *io) 4981{ 4982 uint8_t *buf; 4983 4984 /* 4985 * If the IO_CONT flag is set, we need to call the supplied 4986 * function to continue processing the I/O, instead of completing 4987 * the I/O just yet. 4988 * 4989 * If there is an error, though, we don't want to keep processing. 4990 * Instead, just send status back to the initiator. 4991 */ 4992 if ((io->io_hdr.flags & CTL_FLAG_IO_CONT) && 4993 (io->io_hdr.flags & CTL_FLAG_ABORT) == 0 && 4994 ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE || 4995 (io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS)) { 4996 io->scsiio.io_cont(io); 4997 return; 4998 } 4999 /* 5000 * Since a configuration write can be done for commands that actually 5001 * have data allocated, like write buffer, and commands that have 5002 * no data, like start/stop unit, we need to check here. 5003 */ 5004 if (io->io_hdr.flags & CTL_FLAG_ALLOCATED) 5005 buf = io->scsiio.kern_data_ptr; 5006 else 5007 buf = NULL; 5008 ctl_done(io); 5009 if (buf) 5010 free(buf, M_CTL); 5011} 5012 5013void 5014ctl_config_read_done(union ctl_io *io) 5015{ 5016 uint8_t *buf; 5017 5018 /* 5019 * If there is some error -- we are done, skip data transfer. 5020 */ 5021 if ((io->io_hdr.flags & CTL_FLAG_ABORT) != 0 || 5022 ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE && 5023 (io->io_hdr.status & CTL_STATUS_MASK) != CTL_SUCCESS)) { 5024 if (io->io_hdr.flags & CTL_FLAG_ALLOCATED) 5025 buf = io->scsiio.kern_data_ptr; 5026 else 5027 buf = NULL; 5028 ctl_done(io); 5029 if (buf) 5030 free(buf, M_CTL); 5031 return; 5032 } 5033 5034 /* 5035 * If the IO_CONT flag is set, we need to call the supplied 5036 * function to continue processing the I/O, instead of completing 5037 * the I/O just yet. 5038 */ 5039 if (io->io_hdr.flags & CTL_FLAG_IO_CONT) { 5040 io->scsiio.io_cont(io); 5041 return; 5042 } 5043 5044 ctl_datamove(io); 5045} 5046 5047/* 5048 * SCSI release command. 5049 */ 5050int 5051ctl_scsi_release(struct ctl_scsiio *ctsio) 5052{ 5053 struct ctl_lun *lun; 5054 uint32_t residx; 5055 5056 CTL_DEBUG_PRINT(("ctl_scsi_release\n")); 5057 5058 residx = ctl_get_initindex(&ctsio->io_hdr.nexus); 5059 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5060 5061 /* 5062 * XXX KDM right now, we only support LUN reservation. We don't 5063 * support 3rd party reservations, or extent reservations, which 5064 * might actually need the parameter list. If we've gotten this 5065 * far, we've got a LUN reservation. Anything else got kicked out 5066 * above. So, according to SPC, ignore the length. 5067 */ 5068 5069 mtx_lock(&lun->lun_lock); 5070 5071 /* 5072 * According to SPC, it is not an error for an intiator to attempt 5073 * to release a reservation on a LUN that isn't reserved, or that 5074 * is reserved by another initiator. The reservation can only be 5075 * released, though, by the initiator who made it or by one of 5076 * several reset type events. 5077 */ 5078 if ((lun->flags & CTL_LUN_RESERVED) && (lun->res_idx == residx)) 5079 lun->flags &= ~CTL_LUN_RESERVED; 5080 5081 mtx_unlock(&lun->lun_lock); 5082 5083 ctl_set_success(ctsio); 5084 ctl_done((union ctl_io *)ctsio); 5085 return (CTL_RETVAL_COMPLETE); 5086} 5087 5088int 5089ctl_scsi_reserve(struct ctl_scsiio *ctsio) 5090{ 5091 struct ctl_lun *lun; 5092 uint32_t residx; 5093 5094 CTL_DEBUG_PRINT(("ctl_reserve\n")); 5095 5096 residx = ctl_get_initindex(&ctsio->io_hdr.nexus); 5097 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5098 5099 /* 5100 * XXX KDM right now, we only support LUN reservation. We don't 5101 * support 3rd party reservations, or extent reservations, which 5102 * might actually need the parameter list. If we've gotten this 5103 * far, we've got a LUN reservation. Anything else got kicked out 5104 * above. So, according to SPC, ignore the length. 5105 */ 5106 5107 mtx_lock(&lun->lun_lock); 5108 if ((lun->flags & CTL_LUN_RESERVED) && (lun->res_idx != residx)) { 5109 ctl_set_reservation_conflict(ctsio); 5110 goto bailout; 5111 } 5112 lun->flags |= CTL_LUN_RESERVED; 5113 lun->res_idx = residx; 5114 ctl_set_success(ctsio); 5115 5116bailout: 5117 mtx_unlock(&lun->lun_lock); 5118 ctl_done((union ctl_io *)ctsio); 5119 return (CTL_RETVAL_COMPLETE); 5120} 5121 5122int 5123ctl_start_stop(struct ctl_scsiio *ctsio) 5124{ 5125 struct scsi_start_stop_unit *cdb; 5126 struct ctl_lun *lun; 5127 int retval; 5128 5129 CTL_DEBUG_PRINT(("ctl_start_stop\n")); 5130 5131 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5132 cdb = (struct scsi_start_stop_unit *)ctsio->cdb; 5133 5134 if ((lun->flags & CTL_LUN_PR_RESERVED) 5135 && ((cdb->how & SSS_START)==0)) { 5136 uint32_t residx; 5137 5138 residx = ctl_get_initindex(&ctsio->io_hdr.nexus); 5139 if (ctl_get_prkey(lun, residx) == 0 5140 || (lun->pr_res_idx!=residx && lun->res_type < 4)) { 5141 5142 ctl_set_reservation_conflict(ctsio); 5143 ctl_done((union ctl_io *)ctsio); 5144 return (CTL_RETVAL_COMPLETE); 5145 } 5146 } 5147 5148 if ((cdb->how & SSS_LOEJ) && 5149 (lun->flags & CTL_LUN_REMOVABLE) == 0) { 5150 ctl_set_invalid_field(ctsio, 5151 /*sks_valid*/ 1, 5152 /*command*/ 1, 5153 /*field*/ 4, 5154 /*bit_valid*/ 1, 5155 /*bit*/ 1); 5156 ctl_done((union ctl_io *)ctsio); 5157 return (CTL_RETVAL_COMPLETE); 5158 } 5159 5160 retval = lun->backend->config_write((union ctl_io *)ctsio); 5161 return (retval); 5162} 5163 5164int 5165ctl_prevent_allow(struct ctl_scsiio *ctsio) 5166{ 5167 struct ctl_lun *lun; 5168 int retval; 5169 5170 CTL_DEBUG_PRINT(("ctl_prevent_allow\n")); 5171 5172 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5173 5174 if ((lun->flags & CTL_LUN_REMOVABLE) == 0) { 5175 ctl_set_invalid_opcode(ctsio); 5176 ctl_done((union ctl_io *)ctsio); 5177 return (CTL_RETVAL_COMPLETE); 5178 } 5179 5180 retval = lun->backend->config_write((union ctl_io *)ctsio); 5181 return (retval); 5182} 5183 5184/* 5185 * We support the SYNCHRONIZE CACHE command (10 and 16 byte versions), but 5186 * we don't really do anything with the LBA and length fields if the user 5187 * passes them in. Instead we'll just flush out the cache for the entire 5188 * LUN. 5189 */ 5190int 5191ctl_sync_cache(struct ctl_scsiio *ctsio) 5192{ 5193 struct ctl_lun *lun; 5194 struct ctl_softc *softc; 5195 struct ctl_lba_len_flags *lbalen; 5196 uint64_t starting_lba; 5197 uint32_t block_count; 5198 int retval; 5199 uint8_t byte2; 5200 5201 CTL_DEBUG_PRINT(("ctl_sync_cache\n")); 5202 5203 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5204 softc = lun->ctl_softc; 5205 retval = 0; 5206 5207 switch (ctsio->cdb[0]) { 5208 case SYNCHRONIZE_CACHE: { 5209 struct scsi_sync_cache *cdb; 5210 cdb = (struct scsi_sync_cache *)ctsio->cdb; 5211 5212 starting_lba = scsi_4btoul(cdb->begin_lba); 5213 block_count = scsi_2btoul(cdb->lb_count); 5214 byte2 = cdb->byte2; 5215 break; 5216 } 5217 case SYNCHRONIZE_CACHE_16: { 5218 struct scsi_sync_cache_16 *cdb; 5219 cdb = (struct scsi_sync_cache_16 *)ctsio->cdb; 5220 5221 starting_lba = scsi_8btou64(cdb->begin_lba); 5222 block_count = scsi_4btoul(cdb->lb_count); 5223 byte2 = cdb->byte2; 5224 break; 5225 } 5226 default: 5227 ctl_set_invalid_opcode(ctsio); 5228 ctl_done((union ctl_io *)ctsio); 5229 goto bailout; 5230 break; /* NOTREACHED */ 5231 } 5232 5233 /* 5234 * We check the LBA and length, but don't do anything with them. 5235 * A SYNCHRONIZE CACHE will cause the entire cache for this lun to 5236 * get flushed. This check will just help satisfy anyone who wants 5237 * to see an error for an out of range LBA. 5238 */ 5239 if ((starting_lba + block_count) > (lun->be_lun->maxlba + 1)) { 5240 ctl_set_lba_out_of_range(ctsio); 5241 ctl_done((union ctl_io *)ctsio); 5242 goto bailout; 5243 } 5244 5245 lbalen = (struct ctl_lba_len_flags *)&ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 5246 lbalen->lba = starting_lba; 5247 lbalen->len = block_count; 5248 lbalen->flags = byte2; 5249 retval = lun->backend->config_write((union ctl_io *)ctsio); 5250 5251bailout: 5252 return (retval); 5253} 5254 5255int 5256ctl_format(struct ctl_scsiio *ctsio) 5257{ 5258 struct scsi_format *cdb; 5259 struct ctl_lun *lun; 5260 int length, defect_list_len; 5261 5262 CTL_DEBUG_PRINT(("ctl_format\n")); 5263 5264 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5265 5266 cdb = (struct scsi_format *)ctsio->cdb; 5267 5268 length = 0; 5269 if (cdb->byte2 & SF_FMTDATA) { 5270 if (cdb->byte2 & SF_LONGLIST) 5271 length = sizeof(struct scsi_format_header_long); 5272 else 5273 length = sizeof(struct scsi_format_header_short); 5274 } 5275 5276 if (((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) 5277 && (length > 0)) { 5278 ctsio->kern_data_ptr = malloc(length, M_CTL, M_WAITOK); 5279 ctsio->kern_data_len = length; 5280 ctsio->kern_total_len = length; 5281 ctsio->kern_data_resid = 0; 5282 ctsio->kern_rel_offset = 0; 5283 ctsio->kern_sg_entries = 0; 5284 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5285 ctsio->be_move_done = ctl_config_move_done; 5286 ctl_datamove((union ctl_io *)ctsio); 5287 5288 return (CTL_RETVAL_COMPLETE); 5289 } 5290 5291 defect_list_len = 0; 5292 5293 if (cdb->byte2 & SF_FMTDATA) { 5294 if (cdb->byte2 & SF_LONGLIST) { 5295 struct scsi_format_header_long *header; 5296 5297 header = (struct scsi_format_header_long *) 5298 ctsio->kern_data_ptr; 5299 5300 defect_list_len = scsi_4btoul(header->defect_list_len); 5301 if (defect_list_len != 0) { 5302 ctl_set_invalid_field(ctsio, 5303 /*sks_valid*/ 1, 5304 /*command*/ 0, 5305 /*field*/ 2, 5306 /*bit_valid*/ 0, 5307 /*bit*/ 0); 5308 goto bailout; 5309 } 5310 } else { 5311 struct scsi_format_header_short *header; 5312 5313 header = (struct scsi_format_header_short *) 5314 ctsio->kern_data_ptr; 5315 5316 defect_list_len = scsi_2btoul(header->defect_list_len); 5317 if (defect_list_len != 0) { 5318 ctl_set_invalid_field(ctsio, 5319 /*sks_valid*/ 1, 5320 /*command*/ 0, 5321 /*field*/ 2, 5322 /*bit_valid*/ 0, 5323 /*bit*/ 0); 5324 goto bailout; 5325 } 5326 } 5327 } 5328 5329 ctl_set_success(ctsio); 5330bailout: 5331 5332 if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) { 5333 free(ctsio->kern_data_ptr, M_CTL); 5334 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED; 5335 } 5336 5337 ctl_done((union ctl_io *)ctsio); 5338 return (CTL_RETVAL_COMPLETE); 5339} 5340 5341int 5342ctl_read_buffer(struct ctl_scsiio *ctsio) 5343{ 5344 struct ctl_lun *lun; 5345 uint64_t buffer_offset; 5346 uint32_t len; 5347 uint8_t byte2; 5348 static uint8_t descr[4]; 5349 static uint8_t echo_descr[4] = { 0 }; 5350 5351 CTL_DEBUG_PRINT(("ctl_read_buffer\n")); 5352 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5353 switch (ctsio->cdb[0]) { 5354 case READ_BUFFER: { 5355 struct scsi_read_buffer *cdb; 5356 5357 cdb = (struct scsi_read_buffer *)ctsio->cdb; 5358 buffer_offset = scsi_3btoul(cdb->offset); 5359 len = scsi_3btoul(cdb->length); 5360 byte2 = cdb->byte2; 5361 break; 5362 } 5363 case READ_BUFFER_16: { 5364 struct scsi_read_buffer_16 *cdb; 5365 5366 cdb = (struct scsi_read_buffer_16 *)ctsio->cdb; 5367 buffer_offset = scsi_8btou64(cdb->offset); 5368 len = scsi_4btoul(cdb->length); 5369 byte2 = cdb->byte2; 5370 break; 5371 } 5372 default: /* This shouldn't happen. */ 5373 ctl_set_invalid_opcode(ctsio); 5374 ctl_done((union ctl_io *)ctsio); 5375 return (CTL_RETVAL_COMPLETE); 5376 } 5377 5378 if ((byte2 & RWB_MODE) != RWB_MODE_DATA && 5379 (byte2 & RWB_MODE) != RWB_MODE_ECHO_DESCR && 5380 (byte2 & RWB_MODE) != RWB_MODE_DESCR) { 5381 ctl_set_invalid_field(ctsio, 5382 /*sks_valid*/ 1, 5383 /*command*/ 1, 5384 /*field*/ 1, 5385 /*bit_valid*/ 1, 5386 /*bit*/ 4); 5387 ctl_done((union ctl_io *)ctsio); 5388 return (CTL_RETVAL_COMPLETE); 5389 } 5390 5391 if (buffer_offset > CTL_WRITE_BUFFER_SIZE || 5392 buffer_offset + len > CTL_WRITE_BUFFER_SIZE) { 5393 ctl_set_invalid_field(ctsio, 5394 /*sks_valid*/ 1, 5395 /*command*/ 1, 5396 /*field*/ 6, 5397 /*bit_valid*/ 0, 5398 /*bit*/ 0); 5399 ctl_done((union ctl_io *)ctsio); 5400 return (CTL_RETVAL_COMPLETE); 5401 } 5402 5403 if ((byte2 & RWB_MODE) == RWB_MODE_DESCR) { 5404 descr[0] = 0; 5405 scsi_ulto3b(CTL_WRITE_BUFFER_SIZE, &descr[1]); 5406 ctsio->kern_data_ptr = descr; 5407 len = min(len, sizeof(descr)); 5408 } else if ((byte2 & RWB_MODE) == RWB_MODE_ECHO_DESCR) { 5409 ctsio->kern_data_ptr = echo_descr; 5410 len = min(len, sizeof(echo_descr)); 5411 } else { 5412 if (lun->write_buffer == NULL) { 5413 lun->write_buffer = malloc(CTL_WRITE_BUFFER_SIZE, 5414 M_CTL, M_WAITOK); 5415 } 5416 ctsio->kern_data_ptr = lun->write_buffer + buffer_offset; 5417 } 5418 ctsio->kern_data_len = len; 5419 ctsio->kern_total_len = len; 5420 ctsio->kern_data_resid = 0; 5421 ctsio->kern_rel_offset = 0; 5422 ctsio->kern_sg_entries = 0; 5423 ctl_set_success(ctsio); 5424 ctsio->be_move_done = ctl_config_move_done; 5425 ctl_datamove((union ctl_io *)ctsio); 5426 return (CTL_RETVAL_COMPLETE); 5427} 5428 5429int 5430ctl_write_buffer(struct ctl_scsiio *ctsio) 5431{ 5432 struct scsi_write_buffer *cdb; 5433 struct ctl_lun *lun; 5434 int buffer_offset, len; 5435 5436 CTL_DEBUG_PRINT(("ctl_write_buffer\n")); 5437 5438 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5439 cdb = (struct scsi_write_buffer *)ctsio->cdb; 5440 5441 if ((cdb->byte2 & RWB_MODE) != RWB_MODE_DATA) { 5442 ctl_set_invalid_field(ctsio, 5443 /*sks_valid*/ 1, 5444 /*command*/ 1, 5445 /*field*/ 1, 5446 /*bit_valid*/ 1, 5447 /*bit*/ 4); 5448 ctl_done((union ctl_io *)ctsio); 5449 return (CTL_RETVAL_COMPLETE); 5450 } 5451 5452 len = scsi_3btoul(cdb->length); 5453 buffer_offset = scsi_3btoul(cdb->offset); 5454 5455 if (buffer_offset + len > CTL_WRITE_BUFFER_SIZE) { 5456 ctl_set_invalid_field(ctsio, 5457 /*sks_valid*/ 1, 5458 /*command*/ 1, 5459 /*field*/ 6, 5460 /*bit_valid*/ 0, 5461 /*bit*/ 0); 5462 ctl_done((union ctl_io *)ctsio); 5463 return (CTL_RETVAL_COMPLETE); 5464 } 5465 5466 /* 5467 * If we've got a kernel request that hasn't been malloced yet, 5468 * malloc it and tell the caller the data buffer is here. 5469 */ 5470 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 5471 if (lun->write_buffer == NULL) { 5472 lun->write_buffer = malloc(CTL_WRITE_BUFFER_SIZE, 5473 M_CTL, M_WAITOK); 5474 } 5475 ctsio->kern_data_ptr = lun->write_buffer + buffer_offset; 5476 ctsio->kern_data_len = len; 5477 ctsio->kern_total_len = len; 5478 ctsio->kern_data_resid = 0; 5479 ctsio->kern_rel_offset = 0; 5480 ctsio->kern_sg_entries = 0; 5481 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5482 ctsio->be_move_done = ctl_config_move_done; 5483 ctl_datamove((union ctl_io *)ctsio); 5484 5485 return (CTL_RETVAL_COMPLETE); 5486 } 5487 5488 ctl_set_success(ctsio); 5489 ctl_done((union ctl_io *)ctsio); 5490 return (CTL_RETVAL_COMPLETE); 5491} 5492 5493int 5494ctl_write_same(struct ctl_scsiio *ctsio) 5495{ 5496 struct ctl_lun *lun; 5497 struct ctl_lba_len_flags *lbalen; 5498 uint64_t lba; 5499 uint32_t num_blocks; 5500 int len, retval; 5501 uint8_t byte2; 5502 5503 CTL_DEBUG_PRINT(("ctl_write_same\n")); 5504 5505 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5506 5507 switch (ctsio->cdb[0]) { 5508 case WRITE_SAME_10: { 5509 struct scsi_write_same_10 *cdb; 5510 5511 cdb = (struct scsi_write_same_10 *)ctsio->cdb; 5512 5513 lba = scsi_4btoul(cdb->addr); 5514 num_blocks = scsi_2btoul(cdb->length); 5515 byte2 = cdb->byte2; 5516 break; 5517 } 5518 case WRITE_SAME_16: { 5519 struct scsi_write_same_16 *cdb; 5520 5521 cdb = (struct scsi_write_same_16 *)ctsio->cdb; 5522 5523 lba = scsi_8btou64(cdb->addr); 5524 num_blocks = scsi_4btoul(cdb->length); 5525 byte2 = cdb->byte2; 5526 break; 5527 } 5528 default: 5529 /* 5530 * We got a command we don't support. This shouldn't 5531 * happen, commands should be filtered out above us. 5532 */ 5533 ctl_set_invalid_opcode(ctsio); 5534 ctl_done((union ctl_io *)ctsio); 5535 5536 return (CTL_RETVAL_COMPLETE); 5537 break; /* NOTREACHED */ 5538 } 5539 5540 /* ANCHOR flag can be used only together with UNMAP */ 5541 if ((byte2 & SWS_UNMAP) == 0 && (byte2 & SWS_ANCHOR) != 0) { 5542 ctl_set_invalid_field(ctsio, /*sks_valid*/ 1, 5543 /*command*/ 1, /*field*/ 1, /*bit_valid*/ 1, /*bit*/ 0); 5544 ctl_done((union ctl_io *)ctsio); 5545 return (CTL_RETVAL_COMPLETE); 5546 } 5547 5548 /* 5549 * The first check is to make sure we're in bounds, the second 5550 * check is to catch wrap-around problems. If the lba + num blocks 5551 * is less than the lba, then we've wrapped around and the block 5552 * range is invalid anyway. 5553 */ 5554 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 5555 || ((lba + num_blocks) < lba)) { 5556 ctl_set_lba_out_of_range(ctsio); 5557 ctl_done((union ctl_io *)ctsio); 5558 return (CTL_RETVAL_COMPLETE); 5559 } 5560 5561 /* Zero number of blocks means "to the last logical block" */ 5562 if (num_blocks == 0) { 5563 if ((lun->be_lun->maxlba + 1) - lba > UINT32_MAX) { 5564 ctl_set_invalid_field(ctsio, 5565 /*sks_valid*/ 0, 5566 /*command*/ 1, 5567 /*field*/ 0, 5568 /*bit_valid*/ 0, 5569 /*bit*/ 0); 5570 ctl_done((union ctl_io *)ctsio); 5571 return (CTL_RETVAL_COMPLETE); 5572 } 5573 num_blocks = (lun->be_lun->maxlba + 1) - lba; 5574 } 5575 5576 len = lun->be_lun->blocksize; 5577 5578 /* 5579 * If we've got a kernel request that hasn't been malloced yet, 5580 * malloc it and tell the caller the data buffer is here. 5581 */ 5582 if ((byte2 & SWS_NDOB) == 0 && 5583 (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 5584 ctsio->kern_data_ptr = malloc(len, M_CTL, M_WAITOK);; 5585 ctsio->kern_data_len = len; 5586 ctsio->kern_total_len = len; 5587 ctsio->kern_data_resid = 0; 5588 ctsio->kern_rel_offset = 0; 5589 ctsio->kern_sg_entries = 0; 5590 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5591 ctsio->be_move_done = ctl_config_move_done; 5592 ctl_datamove((union ctl_io *)ctsio); 5593 5594 return (CTL_RETVAL_COMPLETE); 5595 } 5596 5597 lbalen = (struct ctl_lba_len_flags *)&ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 5598 lbalen->lba = lba; 5599 lbalen->len = num_blocks; 5600 lbalen->flags = byte2; 5601 retval = lun->backend->config_write((union ctl_io *)ctsio); 5602 5603 return (retval); 5604} 5605 5606int 5607ctl_unmap(struct ctl_scsiio *ctsio) 5608{ 5609 struct ctl_lun *lun; 5610 struct scsi_unmap *cdb; 5611 struct ctl_ptr_len_flags *ptrlen; 5612 struct scsi_unmap_header *hdr; 5613 struct scsi_unmap_desc *buf, *end, *endnz, *range; 5614 uint64_t lba; 5615 uint32_t num_blocks; 5616 int len, retval; 5617 uint8_t byte2; 5618 5619 CTL_DEBUG_PRINT(("ctl_unmap\n")); 5620 5621 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5622 cdb = (struct scsi_unmap *)ctsio->cdb; 5623 5624 len = scsi_2btoul(cdb->length); 5625 byte2 = cdb->byte2; 5626 5627 /* 5628 * If we've got a kernel request that hasn't been malloced yet, 5629 * malloc it and tell the caller the data buffer is here. 5630 */ 5631 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 5632 ctsio->kern_data_ptr = malloc(len, M_CTL, M_WAITOK);; 5633 ctsio->kern_data_len = len; 5634 ctsio->kern_total_len = len; 5635 ctsio->kern_data_resid = 0; 5636 ctsio->kern_rel_offset = 0; 5637 ctsio->kern_sg_entries = 0; 5638 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5639 ctsio->be_move_done = ctl_config_move_done; 5640 ctl_datamove((union ctl_io *)ctsio); 5641 5642 return (CTL_RETVAL_COMPLETE); 5643 } 5644 5645 len = ctsio->kern_total_len - ctsio->kern_data_resid; 5646 hdr = (struct scsi_unmap_header *)ctsio->kern_data_ptr; 5647 if (len < sizeof (*hdr) || 5648 len < (scsi_2btoul(hdr->length) + sizeof(hdr->length)) || 5649 len < (scsi_2btoul(hdr->desc_length) + sizeof (*hdr)) || 5650 scsi_2btoul(hdr->desc_length) % sizeof(*buf) != 0) { 5651 ctl_set_invalid_field(ctsio, 5652 /*sks_valid*/ 0, 5653 /*command*/ 0, 5654 /*field*/ 0, 5655 /*bit_valid*/ 0, 5656 /*bit*/ 0); 5657 goto done; 5658 } 5659 len = scsi_2btoul(hdr->desc_length); 5660 buf = (struct scsi_unmap_desc *)(hdr + 1); 5661 end = buf + len / sizeof(*buf); 5662 5663 endnz = buf; 5664 for (range = buf; range < end; range++) { 5665 lba = scsi_8btou64(range->lba); 5666 num_blocks = scsi_4btoul(range->length); 5667 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 5668 || ((lba + num_blocks) < lba)) { 5669 ctl_set_lba_out_of_range(ctsio); 5670 ctl_done((union ctl_io *)ctsio); 5671 return (CTL_RETVAL_COMPLETE); 5672 } 5673 if (num_blocks != 0) 5674 endnz = range + 1; 5675 } 5676 5677 /* 5678 * Block backend can not handle zero last range. 5679 * Filter it out and return if there is nothing left. 5680 */ 5681 len = (uint8_t *)endnz - (uint8_t *)buf; 5682 if (len == 0) { 5683 ctl_set_success(ctsio); 5684 goto done; 5685 } 5686 5687 mtx_lock(&lun->lun_lock); 5688 ptrlen = (struct ctl_ptr_len_flags *) 5689 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 5690 ptrlen->ptr = (void *)buf; 5691 ptrlen->len = len; 5692 ptrlen->flags = byte2; 5693 ctl_check_blocked(lun); 5694 mtx_unlock(&lun->lun_lock); 5695 5696 retval = lun->backend->config_write((union ctl_io *)ctsio); 5697 return (retval); 5698 5699done: 5700 if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) { 5701 free(ctsio->kern_data_ptr, M_CTL); 5702 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED; 5703 } 5704 ctl_done((union ctl_io *)ctsio); 5705 return (CTL_RETVAL_COMPLETE); 5706} 5707 5708/* 5709 * Note that this function currently doesn't actually do anything inside 5710 * CTL to enforce things if the DQue bit is turned on. 5711 * 5712 * Also note that this function can't be used in the default case, because 5713 * the DQue bit isn't set in the changeable mask for the control mode page 5714 * anyway. This is just here as an example for how to implement a page 5715 * handler, and a placeholder in case we want to allow the user to turn 5716 * tagged queueing on and off. 5717 * 5718 * The D_SENSE bit handling is functional, however, and will turn 5719 * descriptor sense on and off for a given LUN. 5720 */ 5721int 5722ctl_control_page_handler(struct ctl_scsiio *ctsio, 5723 struct ctl_page_index *page_index, uint8_t *page_ptr) 5724{ 5725 struct scsi_control_page *current_cp, *saved_cp, *user_cp; 5726 struct ctl_lun *lun; 5727 int set_ua; 5728 uint32_t initidx; 5729 5730 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5731 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 5732 set_ua = 0; 5733 5734 user_cp = (struct scsi_control_page *)page_ptr; 5735 current_cp = (struct scsi_control_page *) 5736 (page_index->page_data + (page_index->page_len * 5737 CTL_PAGE_CURRENT)); 5738 saved_cp = (struct scsi_control_page *) 5739 (page_index->page_data + (page_index->page_len * 5740 CTL_PAGE_SAVED)); 5741 5742 mtx_lock(&lun->lun_lock); 5743 if (((current_cp->rlec & SCP_DSENSE) == 0) 5744 && ((user_cp->rlec & SCP_DSENSE) != 0)) { 5745 /* 5746 * Descriptor sense is currently turned off and the user 5747 * wants to turn it on. 5748 */ 5749 current_cp->rlec |= SCP_DSENSE; 5750 saved_cp->rlec |= SCP_DSENSE; 5751 lun->flags |= CTL_LUN_SENSE_DESC; 5752 set_ua = 1; 5753 } else if (((current_cp->rlec & SCP_DSENSE) != 0) 5754 && ((user_cp->rlec & SCP_DSENSE) == 0)) { 5755 /* 5756 * Descriptor sense is currently turned on, and the user 5757 * wants to turn it off. 5758 */ 5759 current_cp->rlec &= ~SCP_DSENSE; 5760 saved_cp->rlec &= ~SCP_DSENSE; 5761 lun->flags &= ~CTL_LUN_SENSE_DESC; 5762 set_ua = 1; 5763 } 5764 if ((current_cp->queue_flags & SCP_QUEUE_ALG_MASK) != 5765 (user_cp->queue_flags & SCP_QUEUE_ALG_MASK)) { 5766 current_cp->queue_flags &= ~SCP_QUEUE_ALG_MASK; 5767 current_cp->queue_flags |= user_cp->queue_flags & SCP_QUEUE_ALG_MASK; 5768 saved_cp->queue_flags &= ~SCP_QUEUE_ALG_MASK; 5769 saved_cp->queue_flags |= user_cp->queue_flags & SCP_QUEUE_ALG_MASK; 5770 set_ua = 1; 5771 } 5772 if ((current_cp->eca_and_aen & SCP_SWP) != 5773 (user_cp->eca_and_aen & SCP_SWP)) { 5774 current_cp->eca_and_aen &= ~SCP_SWP; 5775 current_cp->eca_and_aen |= user_cp->eca_and_aen & SCP_SWP; 5776 saved_cp->eca_and_aen &= ~SCP_SWP; 5777 saved_cp->eca_and_aen |= user_cp->eca_and_aen & SCP_SWP; 5778 set_ua = 1; 5779 } 5780 if (set_ua != 0) 5781 ctl_est_ua_all(lun, initidx, CTL_UA_MODE_CHANGE); 5782 mtx_unlock(&lun->lun_lock); 5783 if (set_ua) { 5784 ctl_isc_announce_mode(lun, 5785 ctl_get_initindex(&ctsio->io_hdr.nexus), 5786 page_index->page_code, page_index->subpage); 5787 } 5788 return (0); 5789} 5790 5791int 5792ctl_caching_sp_handler(struct ctl_scsiio *ctsio, 5793 struct ctl_page_index *page_index, uint8_t *page_ptr) 5794{ 5795 struct scsi_caching_page *current_cp, *saved_cp, *user_cp; 5796 struct ctl_lun *lun; 5797 int set_ua; 5798 uint32_t initidx; 5799 5800 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5801 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 5802 set_ua = 0; 5803 5804 user_cp = (struct scsi_caching_page *)page_ptr; 5805 current_cp = (struct scsi_caching_page *) 5806 (page_index->page_data + (page_index->page_len * 5807 CTL_PAGE_CURRENT)); 5808 saved_cp = (struct scsi_caching_page *) 5809 (page_index->page_data + (page_index->page_len * 5810 CTL_PAGE_SAVED)); 5811 5812 mtx_lock(&lun->lun_lock); 5813 if ((current_cp->flags1 & (SCP_WCE | SCP_RCD)) != 5814 (user_cp->flags1 & (SCP_WCE | SCP_RCD))) { 5815 current_cp->flags1 &= ~(SCP_WCE | SCP_RCD); 5816 current_cp->flags1 |= user_cp->flags1 & (SCP_WCE | SCP_RCD); 5817 saved_cp->flags1 &= ~(SCP_WCE | SCP_RCD); 5818 saved_cp->flags1 |= user_cp->flags1 & (SCP_WCE | SCP_RCD); 5819 set_ua = 1; 5820 } 5821 if (set_ua != 0) 5822 ctl_est_ua_all(lun, initidx, CTL_UA_MODE_CHANGE); 5823 mtx_unlock(&lun->lun_lock); 5824 if (set_ua) { 5825 ctl_isc_announce_mode(lun, 5826 ctl_get_initindex(&ctsio->io_hdr.nexus), 5827 page_index->page_code, page_index->subpage); 5828 } 5829 return (0); 5830} 5831 5832int 5833ctl_debugconf_sp_select_handler(struct ctl_scsiio *ctsio, 5834 struct ctl_page_index *page_index, 5835 uint8_t *page_ptr) 5836{ 5837 uint8_t *c; 5838 int i; 5839 5840 c = ((struct copan_debugconf_subpage *)page_ptr)->ctl_time_io_secs; 5841 ctl_time_io_secs = 5842 (c[0] << 8) | 5843 (c[1] << 0) | 5844 0; 5845 CTL_DEBUG_PRINT(("set ctl_time_io_secs to %d\n", ctl_time_io_secs)); 5846 printf("set ctl_time_io_secs to %d\n", ctl_time_io_secs); 5847 printf("page data:"); 5848 for (i=0; i<8; i++) 5849 printf(" %.2x",page_ptr[i]); 5850 printf("\n"); 5851 return (0); 5852} 5853 5854int 5855ctl_debugconf_sp_sense_handler(struct ctl_scsiio *ctsio, 5856 struct ctl_page_index *page_index, 5857 int pc) 5858{ 5859 struct copan_debugconf_subpage *page; 5860 5861 page = (struct copan_debugconf_subpage *)page_index->page_data + 5862 (page_index->page_len * pc); 5863 5864 switch (pc) { 5865 case SMS_PAGE_CTRL_CHANGEABLE >> 6: 5866 case SMS_PAGE_CTRL_DEFAULT >> 6: 5867 case SMS_PAGE_CTRL_SAVED >> 6: 5868 /* 5869 * We don't update the changable or default bits for this page. 5870 */ 5871 break; 5872 case SMS_PAGE_CTRL_CURRENT >> 6: 5873 page->ctl_time_io_secs[0] = ctl_time_io_secs >> 8; 5874 page->ctl_time_io_secs[1] = ctl_time_io_secs >> 0; 5875 break; 5876 default: 5877 break; 5878 } 5879 return (0); 5880} 5881 5882 5883static int 5884ctl_do_mode_select(union ctl_io *io) 5885{ 5886 struct scsi_mode_page_header *page_header; 5887 struct ctl_page_index *page_index; 5888 struct ctl_scsiio *ctsio; 5889 int page_len, page_len_offset, page_len_size; 5890 union ctl_modepage_info *modepage_info; 5891 struct ctl_lun *lun; 5892 int *len_left, *len_used; 5893 int retval, i; 5894 5895 ctsio = &io->scsiio; 5896 page_index = NULL; 5897 page_len = 0; 5898 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5899 5900 modepage_info = (union ctl_modepage_info *) 5901 ctsio->io_hdr.ctl_private[CTL_PRIV_MODEPAGE].bytes; 5902 len_left = &modepage_info->header.len_left; 5903 len_used = &modepage_info->header.len_used; 5904 5905do_next_page: 5906 5907 page_header = (struct scsi_mode_page_header *) 5908 (ctsio->kern_data_ptr + *len_used); 5909 5910 if (*len_left == 0) { 5911 free(ctsio->kern_data_ptr, M_CTL); 5912 ctl_set_success(ctsio); 5913 ctl_done((union ctl_io *)ctsio); 5914 return (CTL_RETVAL_COMPLETE); 5915 } else if (*len_left < sizeof(struct scsi_mode_page_header)) { 5916 5917 free(ctsio->kern_data_ptr, M_CTL); 5918 ctl_set_param_len_error(ctsio); 5919 ctl_done((union ctl_io *)ctsio); 5920 return (CTL_RETVAL_COMPLETE); 5921 5922 } else if ((page_header->page_code & SMPH_SPF) 5923 && (*len_left < sizeof(struct scsi_mode_page_header_sp))) { 5924 5925 free(ctsio->kern_data_ptr, M_CTL); 5926 ctl_set_param_len_error(ctsio); 5927 ctl_done((union ctl_io *)ctsio); 5928 return (CTL_RETVAL_COMPLETE); 5929 } 5930 5931 5932 /* 5933 * XXX KDM should we do something with the block descriptor? 5934 */ 5935 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 5936 page_index = &lun->mode_pages.index[i]; 5937 if (lun->be_lun->lun_type == T_DIRECT && 5938 (page_index->page_flags & CTL_PAGE_FLAG_DIRECT) == 0) 5939 continue; 5940 if (lun->be_lun->lun_type == T_PROCESSOR && 5941 (page_index->page_flags & CTL_PAGE_FLAG_PROC) == 0) 5942 continue; 5943 if (lun->be_lun->lun_type == T_CDROM && 5944 (page_index->page_flags & CTL_PAGE_FLAG_CDROM) == 0) 5945 continue; 5946 5947 if ((page_index->page_code & SMPH_PC_MASK) != 5948 (page_header->page_code & SMPH_PC_MASK)) 5949 continue; 5950 5951 /* 5952 * If neither page has a subpage code, then we've got a 5953 * match. 5954 */ 5955 if (((page_index->page_code & SMPH_SPF) == 0) 5956 && ((page_header->page_code & SMPH_SPF) == 0)) { 5957 page_len = page_header->page_length; 5958 break; 5959 } 5960 5961 /* 5962 * If both pages have subpages, then the subpage numbers 5963 * have to match. 5964 */ 5965 if ((page_index->page_code & SMPH_SPF) 5966 && (page_header->page_code & SMPH_SPF)) { 5967 struct scsi_mode_page_header_sp *sph; 5968 5969 sph = (struct scsi_mode_page_header_sp *)page_header; 5970 if (page_index->subpage == sph->subpage) { 5971 page_len = scsi_2btoul(sph->page_length); 5972 break; 5973 } 5974 } 5975 } 5976 5977 /* 5978 * If we couldn't find the page, or if we don't have a mode select 5979 * handler for it, send back an error to the user. 5980 */ 5981 if ((i >= CTL_NUM_MODE_PAGES) 5982 || (page_index->select_handler == NULL)) { 5983 ctl_set_invalid_field(ctsio, 5984 /*sks_valid*/ 1, 5985 /*command*/ 0, 5986 /*field*/ *len_used, 5987 /*bit_valid*/ 0, 5988 /*bit*/ 0); 5989 free(ctsio->kern_data_ptr, M_CTL); 5990 ctl_done((union ctl_io *)ctsio); 5991 return (CTL_RETVAL_COMPLETE); 5992 } 5993 5994 if (page_index->page_code & SMPH_SPF) { 5995 page_len_offset = 2; 5996 page_len_size = 2; 5997 } else { 5998 page_len_size = 1; 5999 page_len_offset = 1; 6000 } 6001 6002 /* 6003 * If the length the initiator gives us isn't the one we specify in 6004 * the mode page header, or if they didn't specify enough data in 6005 * the CDB to avoid truncating this page, kick out the request. 6006 */ 6007 if ((page_len != (page_index->page_len - page_len_offset - 6008 page_len_size)) 6009 || (*len_left < page_index->page_len)) { 6010 6011 6012 ctl_set_invalid_field(ctsio, 6013 /*sks_valid*/ 1, 6014 /*command*/ 0, 6015 /*field*/ *len_used + page_len_offset, 6016 /*bit_valid*/ 0, 6017 /*bit*/ 0); 6018 free(ctsio->kern_data_ptr, M_CTL); 6019 ctl_done((union ctl_io *)ctsio); 6020 return (CTL_RETVAL_COMPLETE); 6021 } 6022 6023 /* 6024 * Run through the mode page, checking to make sure that the bits 6025 * the user changed are actually legal for him to change. 6026 */ 6027 for (i = 0; i < page_index->page_len; i++) { 6028 uint8_t *user_byte, *change_mask, *current_byte; 6029 int bad_bit; 6030 int j; 6031 6032 user_byte = (uint8_t *)page_header + i; 6033 change_mask = page_index->page_data + 6034 (page_index->page_len * CTL_PAGE_CHANGEABLE) + i; 6035 current_byte = page_index->page_data + 6036 (page_index->page_len * CTL_PAGE_CURRENT) + i; 6037 6038 /* 6039 * Check to see whether the user set any bits in this byte 6040 * that he is not allowed to set. 6041 */ 6042 if ((*user_byte & ~(*change_mask)) == 6043 (*current_byte & ~(*change_mask))) 6044 continue; 6045 6046 /* 6047 * Go through bit by bit to determine which one is illegal. 6048 */ 6049 bad_bit = 0; 6050 for (j = 7; j >= 0; j--) { 6051 if ((((1 << i) & ~(*change_mask)) & *user_byte) != 6052 (((1 << i) & ~(*change_mask)) & *current_byte)) { 6053 bad_bit = i; 6054 break; 6055 } 6056 } 6057 ctl_set_invalid_field(ctsio, 6058 /*sks_valid*/ 1, 6059 /*command*/ 0, 6060 /*field*/ *len_used + i, 6061 /*bit_valid*/ 1, 6062 /*bit*/ bad_bit); 6063 free(ctsio->kern_data_ptr, M_CTL); 6064 ctl_done((union ctl_io *)ctsio); 6065 return (CTL_RETVAL_COMPLETE); 6066 } 6067 6068 /* 6069 * Decrement these before we call the page handler, since we may 6070 * end up getting called back one way or another before the handler 6071 * returns to this context. 6072 */ 6073 *len_left -= page_index->page_len; 6074 *len_used += page_index->page_len; 6075 6076 retval = page_index->select_handler(ctsio, page_index, 6077 (uint8_t *)page_header); 6078 6079 /* 6080 * If the page handler returns CTL_RETVAL_QUEUED, then we need to 6081 * wait until this queued command completes to finish processing 6082 * the mode page. If it returns anything other than 6083 * CTL_RETVAL_COMPLETE (e.g. CTL_RETVAL_ERROR), then it should have 6084 * already set the sense information, freed the data pointer, and 6085 * completed the io for us. 6086 */ 6087 if (retval != CTL_RETVAL_COMPLETE) 6088 goto bailout_no_done; 6089 6090 /* 6091 * If the initiator sent us more than one page, parse the next one. 6092 */ 6093 if (*len_left > 0) 6094 goto do_next_page; 6095 6096 ctl_set_success(ctsio); 6097 free(ctsio->kern_data_ptr, M_CTL); 6098 ctl_done((union ctl_io *)ctsio); 6099 6100bailout_no_done: 6101 6102 return (CTL_RETVAL_COMPLETE); 6103 6104} 6105 6106int 6107ctl_mode_select(struct ctl_scsiio *ctsio) 6108{ 6109 int param_len, pf, sp; 6110 int header_size, bd_len; 6111 union ctl_modepage_info *modepage_info; 6112 6113 switch (ctsio->cdb[0]) { 6114 case MODE_SELECT_6: { 6115 struct scsi_mode_select_6 *cdb; 6116 6117 cdb = (struct scsi_mode_select_6 *)ctsio->cdb; 6118 6119 pf = (cdb->byte2 & SMS_PF) ? 1 : 0; 6120 sp = (cdb->byte2 & SMS_SP) ? 1 : 0; 6121 param_len = cdb->length; 6122 header_size = sizeof(struct scsi_mode_header_6); 6123 break; 6124 } 6125 case MODE_SELECT_10: { 6126 struct scsi_mode_select_10 *cdb; 6127 6128 cdb = (struct scsi_mode_select_10 *)ctsio->cdb; 6129 6130 pf = (cdb->byte2 & SMS_PF) ? 1 : 0; 6131 sp = (cdb->byte2 & SMS_SP) ? 1 : 0; 6132 param_len = scsi_2btoul(cdb->length); 6133 header_size = sizeof(struct scsi_mode_header_10); 6134 break; 6135 } 6136 default: 6137 ctl_set_invalid_opcode(ctsio); 6138 ctl_done((union ctl_io *)ctsio); 6139 return (CTL_RETVAL_COMPLETE); 6140 } 6141 6142 /* 6143 * From SPC-3: 6144 * "A parameter list length of zero indicates that the Data-Out Buffer 6145 * shall be empty. This condition shall not be considered as an error." 6146 */ 6147 if (param_len == 0) { 6148 ctl_set_success(ctsio); 6149 ctl_done((union ctl_io *)ctsio); 6150 return (CTL_RETVAL_COMPLETE); 6151 } 6152 6153 /* 6154 * Since we'll hit this the first time through, prior to 6155 * allocation, we don't need to free a data buffer here. 6156 */ 6157 if (param_len < header_size) { 6158 ctl_set_param_len_error(ctsio); 6159 ctl_done((union ctl_io *)ctsio); 6160 return (CTL_RETVAL_COMPLETE); 6161 } 6162 6163 /* 6164 * Allocate the data buffer and grab the user's data. In theory, 6165 * we shouldn't have to sanity check the parameter list length here 6166 * because the maximum size is 64K. We should be able to malloc 6167 * that much without too many problems. 6168 */ 6169 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 6170 ctsio->kern_data_ptr = malloc(param_len, M_CTL, M_WAITOK); 6171 ctsio->kern_data_len = param_len; 6172 ctsio->kern_total_len = param_len; 6173 ctsio->kern_data_resid = 0; 6174 ctsio->kern_rel_offset = 0; 6175 ctsio->kern_sg_entries = 0; 6176 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6177 ctsio->be_move_done = ctl_config_move_done; 6178 ctl_datamove((union ctl_io *)ctsio); 6179 6180 return (CTL_RETVAL_COMPLETE); 6181 } 6182 6183 switch (ctsio->cdb[0]) { 6184 case MODE_SELECT_6: { 6185 struct scsi_mode_header_6 *mh6; 6186 6187 mh6 = (struct scsi_mode_header_6 *)ctsio->kern_data_ptr; 6188 bd_len = mh6->blk_desc_len; 6189 break; 6190 } 6191 case MODE_SELECT_10: { 6192 struct scsi_mode_header_10 *mh10; 6193 6194 mh10 = (struct scsi_mode_header_10 *)ctsio->kern_data_ptr; 6195 bd_len = scsi_2btoul(mh10->blk_desc_len); 6196 break; 6197 } 6198 default: 6199 panic("Invalid CDB type %#x", ctsio->cdb[0]); 6200 break; 6201 } 6202 6203 if (param_len < (header_size + bd_len)) { 6204 free(ctsio->kern_data_ptr, M_CTL); 6205 ctl_set_param_len_error(ctsio); 6206 ctl_done((union ctl_io *)ctsio); 6207 return (CTL_RETVAL_COMPLETE); 6208 } 6209 6210 /* 6211 * Set the IO_CONT flag, so that if this I/O gets passed to 6212 * ctl_config_write_done(), it'll get passed back to 6213 * ctl_do_mode_select() for further processing, or completion if 6214 * we're all done. 6215 */ 6216 ctsio->io_hdr.flags |= CTL_FLAG_IO_CONT; 6217 ctsio->io_cont = ctl_do_mode_select; 6218 6219 modepage_info = (union ctl_modepage_info *) 6220 ctsio->io_hdr.ctl_private[CTL_PRIV_MODEPAGE].bytes; 6221 memset(modepage_info, 0, sizeof(*modepage_info)); 6222 modepage_info->header.len_left = param_len - header_size - bd_len; 6223 modepage_info->header.len_used = header_size + bd_len; 6224 6225 return (ctl_do_mode_select((union ctl_io *)ctsio)); 6226} 6227 6228int 6229ctl_mode_sense(struct ctl_scsiio *ctsio) 6230{ 6231 struct ctl_lun *lun; 6232 int pc, page_code, dbd, llba, subpage; 6233 int alloc_len, page_len, header_len, total_len; 6234 struct scsi_mode_block_descr *block_desc; 6235 struct ctl_page_index *page_index; 6236 6237 dbd = 0; 6238 llba = 0; 6239 block_desc = NULL; 6240 6241 CTL_DEBUG_PRINT(("ctl_mode_sense\n")); 6242 6243 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6244 switch (ctsio->cdb[0]) { 6245 case MODE_SENSE_6: { 6246 struct scsi_mode_sense_6 *cdb; 6247 6248 cdb = (struct scsi_mode_sense_6 *)ctsio->cdb; 6249 6250 header_len = sizeof(struct scsi_mode_hdr_6); 6251 if (cdb->byte2 & SMS_DBD) 6252 dbd = 1; 6253 else 6254 header_len += sizeof(struct scsi_mode_block_descr); 6255 6256 pc = (cdb->page & SMS_PAGE_CTRL_MASK) >> 6; 6257 page_code = cdb->page & SMS_PAGE_CODE; 6258 subpage = cdb->subpage; 6259 alloc_len = cdb->length; 6260 break; 6261 } 6262 case MODE_SENSE_10: { 6263 struct scsi_mode_sense_10 *cdb; 6264 6265 cdb = (struct scsi_mode_sense_10 *)ctsio->cdb; 6266 6267 header_len = sizeof(struct scsi_mode_hdr_10); 6268 6269 if (cdb->byte2 & SMS_DBD) 6270 dbd = 1; 6271 else 6272 header_len += sizeof(struct scsi_mode_block_descr); 6273 if (cdb->byte2 & SMS10_LLBAA) 6274 llba = 1; 6275 pc = (cdb->page & SMS_PAGE_CTRL_MASK) >> 6; 6276 page_code = cdb->page & SMS_PAGE_CODE; 6277 subpage = cdb->subpage; 6278 alloc_len = scsi_2btoul(cdb->length); 6279 break; 6280 } 6281 default: 6282 ctl_set_invalid_opcode(ctsio); 6283 ctl_done((union ctl_io *)ctsio); 6284 return (CTL_RETVAL_COMPLETE); 6285 break; /* NOTREACHED */ 6286 } 6287 6288 /* 6289 * We have to make a first pass through to calculate the size of 6290 * the pages that match the user's query. Then we allocate enough 6291 * memory to hold it, and actually copy the data into the buffer. 6292 */ 6293 switch (page_code) { 6294 case SMS_ALL_PAGES_PAGE: { 6295 int i; 6296 6297 page_len = 0; 6298 6299 /* 6300 * At the moment, values other than 0 and 0xff here are 6301 * reserved according to SPC-3. 6302 */ 6303 if ((subpage != SMS_SUBPAGE_PAGE_0) 6304 && (subpage != SMS_SUBPAGE_ALL)) { 6305 ctl_set_invalid_field(ctsio, 6306 /*sks_valid*/ 1, 6307 /*command*/ 1, 6308 /*field*/ 3, 6309 /*bit_valid*/ 0, 6310 /*bit*/ 0); 6311 ctl_done((union ctl_io *)ctsio); 6312 return (CTL_RETVAL_COMPLETE); 6313 } 6314 6315 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6316 page_index = &lun->mode_pages.index[i]; 6317 6318 /* Make sure the page is supported for this dev type */ 6319 if (lun->be_lun->lun_type == T_DIRECT && 6320 (page_index->page_flags & CTL_PAGE_FLAG_DIRECT) == 0) 6321 continue; 6322 if (lun->be_lun->lun_type == T_PROCESSOR && 6323 (page_index->page_flags & CTL_PAGE_FLAG_PROC) == 0) 6324 continue; 6325 if (lun->be_lun->lun_type == T_CDROM && 6326 (page_index->page_flags & CTL_PAGE_FLAG_CDROM) == 0) 6327 continue; 6328 6329 /* 6330 * We don't use this subpage if the user didn't 6331 * request all subpages. 6332 */ 6333 if ((page_index->subpage != 0) 6334 && (subpage == SMS_SUBPAGE_PAGE_0)) 6335 continue; 6336 6337#if 0 6338 printf("found page %#x len %d\n", 6339 page_index->page_code & SMPH_PC_MASK, 6340 page_index->page_len); 6341#endif 6342 page_len += page_index->page_len; 6343 } 6344 break; 6345 } 6346 default: { 6347 int i; 6348 6349 page_len = 0; 6350 6351 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6352 page_index = &lun->mode_pages.index[i]; 6353 6354 /* Make sure the page is supported for this dev type */ 6355 if (lun->be_lun->lun_type == T_DIRECT && 6356 (page_index->page_flags & CTL_PAGE_FLAG_DIRECT) == 0) 6357 continue; 6358 if (lun->be_lun->lun_type == T_PROCESSOR && 6359 (page_index->page_flags & CTL_PAGE_FLAG_PROC) == 0) 6360 continue; 6361 if (lun->be_lun->lun_type == T_CDROM && 6362 (page_index->page_flags & CTL_PAGE_FLAG_CDROM) == 0) 6363 continue; 6364 6365 /* Look for the right page code */ 6366 if ((page_index->page_code & SMPH_PC_MASK) != page_code) 6367 continue; 6368 6369 /* Look for the right subpage or the subpage wildcard*/ 6370 if ((page_index->subpage != subpage) 6371 && (subpage != SMS_SUBPAGE_ALL)) 6372 continue; 6373 6374#if 0 6375 printf("found page %#x len %d\n", 6376 page_index->page_code & SMPH_PC_MASK, 6377 page_index->page_len); 6378#endif 6379 6380 page_len += page_index->page_len; 6381 } 6382 6383 if (page_len == 0) { 6384 ctl_set_invalid_field(ctsio, 6385 /*sks_valid*/ 1, 6386 /*command*/ 1, 6387 /*field*/ 2, 6388 /*bit_valid*/ 1, 6389 /*bit*/ 5); 6390 ctl_done((union ctl_io *)ctsio); 6391 return (CTL_RETVAL_COMPLETE); 6392 } 6393 break; 6394 } 6395 } 6396 6397 total_len = header_len + page_len; 6398#if 0 6399 printf("header_len = %d, page_len = %d, total_len = %d\n", 6400 header_len, page_len, total_len); 6401#endif 6402 6403 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 6404 ctsio->kern_sg_entries = 0; 6405 ctsio->kern_data_resid = 0; 6406 ctsio->kern_rel_offset = 0; 6407 if (total_len < alloc_len) { 6408 ctsio->residual = alloc_len - total_len; 6409 ctsio->kern_data_len = total_len; 6410 ctsio->kern_total_len = total_len; 6411 } else { 6412 ctsio->residual = 0; 6413 ctsio->kern_data_len = alloc_len; 6414 ctsio->kern_total_len = alloc_len; 6415 } 6416 6417 switch (ctsio->cdb[0]) { 6418 case MODE_SENSE_6: { 6419 struct scsi_mode_hdr_6 *header; 6420 6421 header = (struct scsi_mode_hdr_6 *)ctsio->kern_data_ptr; 6422 6423 header->datalen = MIN(total_len - 1, 254); 6424 if (lun->be_lun->lun_type == T_DIRECT) { 6425 header->dev_specific = 0x10; /* DPOFUA */ 6426 if ((lun->be_lun->flags & CTL_LUN_FLAG_READONLY) || 6427 (lun->mode_pages.control_page[CTL_PAGE_CURRENT] 6428 .eca_and_aen & SCP_SWP) != 0) 6429 header->dev_specific |= 0x80; /* WP */ 6430 } 6431 if (dbd) 6432 header->block_descr_len = 0; 6433 else 6434 header->block_descr_len = 6435 sizeof(struct scsi_mode_block_descr); 6436 block_desc = (struct scsi_mode_block_descr *)&header[1]; 6437 break; 6438 } 6439 case MODE_SENSE_10: { 6440 struct scsi_mode_hdr_10 *header; 6441 int datalen; 6442 6443 header = (struct scsi_mode_hdr_10 *)ctsio->kern_data_ptr; 6444 6445 datalen = MIN(total_len - 2, 65533); 6446 scsi_ulto2b(datalen, header->datalen); 6447 if (lun->be_lun->lun_type == T_DIRECT) { 6448 header->dev_specific = 0x10; /* DPOFUA */ 6449 if ((lun->be_lun->flags & CTL_LUN_FLAG_READONLY) || 6450 (lun->mode_pages.control_page[CTL_PAGE_CURRENT] 6451 .eca_and_aen & SCP_SWP) != 0) 6452 header->dev_specific |= 0x80; /* WP */ 6453 } 6454 if (dbd) 6455 scsi_ulto2b(0, header->block_descr_len); 6456 else 6457 scsi_ulto2b(sizeof(struct scsi_mode_block_descr), 6458 header->block_descr_len); 6459 block_desc = (struct scsi_mode_block_descr *)&header[1]; 6460 break; 6461 } 6462 default: 6463 panic("invalid CDB type %#x", ctsio->cdb[0]); 6464 break; /* NOTREACHED */ 6465 } 6466 6467 /* 6468 * If we've got a disk, use its blocksize in the block 6469 * descriptor. Otherwise, just set it to 0. 6470 */ 6471 if (dbd == 0) { 6472 if (lun->be_lun->lun_type == T_DIRECT) 6473 scsi_ulto3b(lun->be_lun->blocksize, 6474 block_desc->block_len); 6475 else 6476 scsi_ulto3b(0, block_desc->block_len); 6477 } 6478 6479 switch (page_code) { 6480 case SMS_ALL_PAGES_PAGE: { 6481 int i, data_used; 6482 6483 data_used = header_len; 6484 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6485 struct ctl_page_index *page_index; 6486 6487 page_index = &lun->mode_pages.index[i]; 6488 if (lun->be_lun->lun_type == T_DIRECT && 6489 (page_index->page_flags & CTL_PAGE_FLAG_DIRECT) == 0) 6490 continue; 6491 if (lun->be_lun->lun_type == T_PROCESSOR && 6492 (page_index->page_flags & CTL_PAGE_FLAG_PROC) == 0) 6493 continue; 6494 if (lun->be_lun->lun_type == T_CDROM && 6495 (page_index->page_flags & CTL_PAGE_FLAG_CDROM) == 0) 6496 continue; 6497 6498 /* 6499 * We don't use this subpage if the user didn't 6500 * request all subpages. We already checked (above) 6501 * to make sure the user only specified a subpage 6502 * of 0 or 0xff in the SMS_ALL_PAGES_PAGE case. 6503 */ 6504 if ((page_index->subpage != 0) 6505 && (subpage == SMS_SUBPAGE_PAGE_0)) 6506 continue; 6507 6508 /* 6509 * Call the handler, if it exists, to update the 6510 * page to the latest values. 6511 */ 6512 if (page_index->sense_handler != NULL) 6513 page_index->sense_handler(ctsio, page_index,pc); 6514 6515 memcpy(ctsio->kern_data_ptr + data_used, 6516 page_index->page_data + 6517 (page_index->page_len * pc), 6518 page_index->page_len); 6519 data_used += page_index->page_len; 6520 } 6521 break; 6522 } 6523 default: { 6524 int i, data_used; 6525 6526 data_used = header_len; 6527 6528 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6529 struct ctl_page_index *page_index; 6530 6531 page_index = &lun->mode_pages.index[i]; 6532 6533 /* Look for the right page code */ 6534 if ((page_index->page_code & SMPH_PC_MASK) != page_code) 6535 continue; 6536 6537 /* Look for the right subpage or the subpage wildcard*/ 6538 if ((page_index->subpage != subpage) 6539 && (subpage != SMS_SUBPAGE_ALL)) 6540 continue; 6541 6542 /* Make sure the page is supported for this dev type */ 6543 if (lun->be_lun->lun_type == T_DIRECT && 6544 (page_index->page_flags & CTL_PAGE_FLAG_DIRECT) == 0) 6545 continue; 6546 if (lun->be_lun->lun_type == T_PROCESSOR && 6547 (page_index->page_flags & CTL_PAGE_FLAG_PROC) == 0) 6548 continue; 6549 if (lun->be_lun->lun_type == T_CDROM && 6550 (page_index->page_flags & CTL_PAGE_FLAG_CDROM) == 0) 6551 continue; 6552 6553 /* 6554 * Call the handler, if it exists, to update the 6555 * page to the latest values. 6556 */ 6557 if (page_index->sense_handler != NULL) 6558 page_index->sense_handler(ctsio, page_index,pc); 6559 6560 memcpy(ctsio->kern_data_ptr + data_used, 6561 page_index->page_data + 6562 (page_index->page_len * pc), 6563 page_index->page_len); 6564 data_used += page_index->page_len; 6565 } 6566 break; 6567 } 6568 } 6569 6570 ctl_set_success(ctsio); 6571 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6572 ctsio->be_move_done = ctl_config_move_done; 6573 ctl_datamove((union ctl_io *)ctsio); 6574 return (CTL_RETVAL_COMPLETE); 6575} 6576 6577int 6578ctl_lbp_log_sense_handler(struct ctl_scsiio *ctsio, 6579 struct ctl_page_index *page_index, 6580 int pc) 6581{ 6582 struct ctl_lun *lun; 6583 struct scsi_log_param_header *phdr; 6584 uint8_t *data; 6585 uint64_t val; 6586 6587 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6588 data = page_index->page_data; 6589 6590 if (lun->backend->lun_attr != NULL && 6591 (val = lun->backend->lun_attr(lun->be_lun->be_lun, "blocksavail")) 6592 != UINT64_MAX) { 6593 phdr = (struct scsi_log_param_header *)data; 6594 scsi_ulto2b(0x0001, phdr->param_code); 6595 phdr->param_control = SLP_LBIN | SLP_LP; 6596 phdr->param_len = 8; 6597 data = (uint8_t *)(phdr + 1); 6598 scsi_ulto4b(val >> CTL_LBP_EXPONENT, data); 6599 data[4] = 0x02; /* per-pool */ 6600 data += phdr->param_len; 6601 } 6602 6603 if (lun->backend->lun_attr != NULL && 6604 (val = lun->backend->lun_attr(lun->be_lun->be_lun, "blocksused")) 6605 != UINT64_MAX) { 6606 phdr = (struct scsi_log_param_header *)data; 6607 scsi_ulto2b(0x0002, phdr->param_code); 6608 phdr->param_control = SLP_LBIN | SLP_LP; 6609 phdr->param_len = 8; 6610 data = (uint8_t *)(phdr + 1); 6611 scsi_ulto4b(val >> CTL_LBP_EXPONENT, data); 6612 data[4] = 0x01; /* per-LUN */ 6613 data += phdr->param_len; 6614 } 6615 6616 if (lun->backend->lun_attr != NULL && 6617 (val = lun->backend->lun_attr(lun->be_lun->be_lun, "poolblocksavail")) 6618 != UINT64_MAX) { 6619 phdr = (struct scsi_log_param_header *)data; 6620 scsi_ulto2b(0x00f1, phdr->param_code); 6621 phdr->param_control = SLP_LBIN | SLP_LP; 6622 phdr->param_len = 8; 6623 data = (uint8_t *)(phdr + 1); 6624 scsi_ulto4b(val >> CTL_LBP_EXPONENT, data); 6625 data[4] = 0x02; /* per-pool */ 6626 data += phdr->param_len; 6627 } 6628 6629 if (lun->backend->lun_attr != NULL && 6630 (val = lun->backend->lun_attr(lun->be_lun->be_lun, "poolblocksused")) 6631 != UINT64_MAX) { 6632 phdr = (struct scsi_log_param_header *)data; 6633 scsi_ulto2b(0x00f2, phdr->param_code); 6634 phdr->param_control = SLP_LBIN | SLP_LP; 6635 phdr->param_len = 8; 6636 data = (uint8_t *)(phdr + 1); 6637 scsi_ulto4b(val >> CTL_LBP_EXPONENT, data); 6638 data[4] = 0x02; /* per-pool */ 6639 data += phdr->param_len; 6640 } 6641 6642 page_index->page_len = data - page_index->page_data; 6643 return (0); 6644} 6645 6646int 6647ctl_sap_log_sense_handler(struct ctl_scsiio *ctsio, 6648 struct ctl_page_index *page_index, 6649 int pc) 6650{ 6651 struct ctl_lun *lun; 6652 struct stat_page *data; 6653 uint64_t rn, wn, rb, wb; 6654 struct bintime rt, wt; 6655 int i; 6656 6657 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6658 data = (struct stat_page *)page_index->page_data; 6659 6660 scsi_ulto2b(SLP_SAP, data->sap.hdr.param_code); 6661 data->sap.hdr.param_control = SLP_LBIN; 6662 data->sap.hdr.param_len = sizeof(struct scsi_log_stat_and_perf) - 6663 sizeof(struct scsi_log_param_header); 6664 rn = wn = rb = wb = 0; 6665 bintime_clear(&rt); 6666 bintime_clear(&wt); 6667 for (i = 0; i < CTL_MAX_PORTS; i++) { 6668 rn += lun->stats.ports[i].operations[CTL_STATS_READ]; 6669 wn += lun->stats.ports[i].operations[CTL_STATS_WRITE]; 6670 rb += lun->stats.ports[i].bytes[CTL_STATS_READ]; 6671 wb += lun->stats.ports[i].bytes[CTL_STATS_WRITE]; 6672 bintime_add(&rt, &lun->stats.ports[i].time[CTL_STATS_READ]); 6673 bintime_add(&wt, &lun->stats.ports[i].time[CTL_STATS_WRITE]); 6674 } 6675 scsi_u64to8b(rn, data->sap.read_num); 6676 scsi_u64to8b(wn, data->sap.write_num); 6677 if (lun->stats.blocksize > 0) { 6678 scsi_u64to8b(wb / lun->stats.blocksize, 6679 data->sap.recvieved_lba); 6680 scsi_u64to8b(rb / lun->stats.blocksize, 6681 data->sap.transmitted_lba); 6682 } 6683 scsi_u64to8b((uint64_t)rt.sec * 1000 + rt.frac / (UINT64_MAX / 1000), 6684 data->sap.read_int); 6685 scsi_u64to8b((uint64_t)wt.sec * 1000 + wt.frac / (UINT64_MAX / 1000), 6686 data->sap.write_int); 6687 scsi_u64to8b(0, data->sap.weighted_num); 6688 scsi_u64to8b(0, data->sap.weighted_int); 6689 scsi_ulto2b(SLP_IT, data->it.hdr.param_code); 6690 data->it.hdr.param_control = SLP_LBIN; 6691 data->it.hdr.param_len = sizeof(struct scsi_log_idle_time) - 6692 sizeof(struct scsi_log_param_header); 6693#ifdef CTL_TIME_IO 6694 scsi_u64to8b(lun->idle_time / SBT_1MS, data->it.idle_int); 6695#endif 6696 scsi_ulto2b(SLP_TI, data->ti.hdr.param_code); 6697 data->it.hdr.param_control = SLP_LBIN; 6698 data->ti.hdr.param_len = sizeof(struct scsi_log_time_interval) - 6699 sizeof(struct scsi_log_param_header); 6700 scsi_ulto4b(3, data->ti.exponent); 6701 scsi_ulto4b(1, data->ti.integer); 6702 6703 page_index->page_len = sizeof(*data); 6704 return (0); 6705} 6706 6707int 6708ctl_log_sense(struct ctl_scsiio *ctsio) 6709{ 6710 struct ctl_lun *lun; 6711 int i, pc, page_code, subpage; 6712 int alloc_len, total_len; 6713 struct ctl_page_index *page_index; 6714 struct scsi_log_sense *cdb; 6715 struct scsi_log_header *header; 6716 6717 CTL_DEBUG_PRINT(("ctl_log_sense\n")); 6718 6719 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6720 cdb = (struct scsi_log_sense *)ctsio->cdb; 6721 pc = (cdb->page & SLS_PAGE_CTRL_MASK) >> 6; 6722 page_code = cdb->page & SLS_PAGE_CODE; 6723 subpage = cdb->subpage; 6724 alloc_len = scsi_2btoul(cdb->length); 6725 6726 page_index = NULL; 6727 for (i = 0; i < CTL_NUM_LOG_PAGES; i++) { 6728 page_index = &lun->log_pages.index[i]; 6729 6730 /* Look for the right page code */ 6731 if ((page_index->page_code & SL_PAGE_CODE) != page_code) 6732 continue; 6733 6734 /* Look for the right subpage or the subpage wildcard*/ 6735 if (page_index->subpage != subpage) 6736 continue; 6737 6738 break; 6739 } 6740 if (i >= CTL_NUM_LOG_PAGES) { 6741 ctl_set_invalid_field(ctsio, 6742 /*sks_valid*/ 1, 6743 /*command*/ 1, 6744 /*field*/ 2, 6745 /*bit_valid*/ 0, 6746 /*bit*/ 0); 6747 ctl_done((union ctl_io *)ctsio); 6748 return (CTL_RETVAL_COMPLETE); 6749 } 6750 6751 total_len = sizeof(struct scsi_log_header) + page_index->page_len; 6752 6753 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 6754 ctsio->kern_sg_entries = 0; 6755 ctsio->kern_data_resid = 0; 6756 ctsio->kern_rel_offset = 0; 6757 if (total_len < alloc_len) { 6758 ctsio->residual = alloc_len - total_len; 6759 ctsio->kern_data_len = total_len; 6760 ctsio->kern_total_len = total_len; 6761 } else { 6762 ctsio->residual = 0; 6763 ctsio->kern_data_len = alloc_len; 6764 ctsio->kern_total_len = alloc_len; 6765 } 6766 6767 header = (struct scsi_log_header *)ctsio->kern_data_ptr; 6768 header->page = page_index->page_code; 6769 if (page_index->subpage) { 6770 header->page |= SL_SPF; 6771 header->subpage = page_index->subpage; 6772 } 6773 scsi_ulto2b(page_index->page_len, header->datalen); 6774 6775 /* 6776 * Call the handler, if it exists, to update the 6777 * page to the latest values. 6778 */ 6779 if (page_index->sense_handler != NULL) 6780 page_index->sense_handler(ctsio, page_index, pc); 6781 6782 memcpy(header + 1, page_index->page_data, page_index->page_len); 6783 6784 ctl_set_success(ctsio); 6785 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6786 ctsio->be_move_done = ctl_config_move_done; 6787 ctl_datamove((union ctl_io *)ctsio); 6788 return (CTL_RETVAL_COMPLETE); 6789} 6790 6791int 6792ctl_read_capacity(struct ctl_scsiio *ctsio) 6793{ 6794 struct scsi_read_capacity *cdb; 6795 struct scsi_read_capacity_data *data; 6796 struct ctl_lun *lun; 6797 uint32_t lba; 6798 6799 CTL_DEBUG_PRINT(("ctl_read_capacity\n")); 6800 6801 cdb = (struct scsi_read_capacity *)ctsio->cdb; 6802 6803 lba = scsi_4btoul(cdb->addr); 6804 if (((cdb->pmi & SRC_PMI) == 0) 6805 && (lba != 0)) { 6806 ctl_set_invalid_field(/*ctsio*/ ctsio, 6807 /*sks_valid*/ 1, 6808 /*command*/ 1, 6809 /*field*/ 2, 6810 /*bit_valid*/ 0, 6811 /*bit*/ 0); 6812 ctl_done((union ctl_io *)ctsio); 6813 return (CTL_RETVAL_COMPLETE); 6814 } 6815 6816 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6817 6818 ctsio->kern_data_ptr = malloc(sizeof(*data), M_CTL, M_WAITOK | M_ZERO); 6819 data = (struct scsi_read_capacity_data *)ctsio->kern_data_ptr; 6820 ctsio->residual = 0; 6821 ctsio->kern_data_len = sizeof(*data); 6822 ctsio->kern_total_len = sizeof(*data); 6823 ctsio->kern_data_resid = 0; 6824 ctsio->kern_rel_offset = 0; 6825 ctsio->kern_sg_entries = 0; 6826 6827 /* 6828 * If the maximum LBA is greater than 0xfffffffe, the user must 6829 * issue a SERVICE ACTION IN (16) command, with the read capacity 6830 * serivce action set. 6831 */ 6832 if (lun->be_lun->maxlba > 0xfffffffe) 6833 scsi_ulto4b(0xffffffff, data->addr); 6834 else 6835 scsi_ulto4b(lun->be_lun->maxlba, data->addr); 6836 6837 /* 6838 * XXX KDM this may not be 512 bytes... 6839 */ 6840 scsi_ulto4b(lun->be_lun->blocksize, data->length); 6841 6842 ctl_set_success(ctsio); 6843 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6844 ctsio->be_move_done = ctl_config_move_done; 6845 ctl_datamove((union ctl_io *)ctsio); 6846 return (CTL_RETVAL_COMPLETE); 6847} 6848 6849int 6850ctl_read_capacity_16(struct ctl_scsiio *ctsio) 6851{ 6852 struct scsi_read_capacity_16 *cdb; 6853 struct scsi_read_capacity_data_long *data; 6854 struct ctl_lun *lun; 6855 uint64_t lba; 6856 uint32_t alloc_len; 6857 6858 CTL_DEBUG_PRINT(("ctl_read_capacity_16\n")); 6859 6860 cdb = (struct scsi_read_capacity_16 *)ctsio->cdb; 6861 6862 alloc_len = scsi_4btoul(cdb->alloc_len); 6863 lba = scsi_8btou64(cdb->addr); 6864 6865 if ((cdb->reladr & SRC16_PMI) 6866 && (lba != 0)) { 6867 ctl_set_invalid_field(/*ctsio*/ ctsio, 6868 /*sks_valid*/ 1, 6869 /*command*/ 1, 6870 /*field*/ 2, 6871 /*bit_valid*/ 0, 6872 /*bit*/ 0); 6873 ctl_done((union ctl_io *)ctsio); 6874 return (CTL_RETVAL_COMPLETE); 6875 } 6876 6877 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6878 6879 ctsio->kern_data_ptr = malloc(sizeof(*data), M_CTL, M_WAITOK | M_ZERO); 6880 data = (struct scsi_read_capacity_data_long *)ctsio->kern_data_ptr; 6881 6882 if (sizeof(*data) < alloc_len) { 6883 ctsio->residual = alloc_len - sizeof(*data); 6884 ctsio->kern_data_len = sizeof(*data); 6885 ctsio->kern_total_len = sizeof(*data); 6886 } else { 6887 ctsio->residual = 0; 6888 ctsio->kern_data_len = alloc_len; 6889 ctsio->kern_total_len = alloc_len; 6890 } 6891 ctsio->kern_data_resid = 0; 6892 ctsio->kern_rel_offset = 0; 6893 ctsio->kern_sg_entries = 0; 6894 6895 scsi_u64to8b(lun->be_lun->maxlba, data->addr); 6896 /* XXX KDM this may not be 512 bytes... */ 6897 scsi_ulto4b(lun->be_lun->blocksize, data->length); 6898 data->prot_lbppbe = lun->be_lun->pblockexp & SRC16_LBPPBE; 6899 scsi_ulto2b(lun->be_lun->pblockoff & SRC16_LALBA_A, data->lalba_lbp); 6900 if (lun->be_lun->flags & CTL_LUN_FLAG_UNMAP) 6901 data->lalba_lbp[0] |= SRC16_LBPME | SRC16_LBPRZ; 6902 6903 ctl_set_success(ctsio); 6904 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6905 ctsio->be_move_done = ctl_config_move_done; 6906 ctl_datamove((union ctl_io *)ctsio); 6907 return (CTL_RETVAL_COMPLETE); 6908} 6909 6910int 6911ctl_get_lba_status(struct ctl_scsiio *ctsio) 6912{ 6913 struct scsi_get_lba_status *cdb; 6914 struct scsi_get_lba_status_data *data; 6915 struct ctl_lun *lun; 6916 struct ctl_lba_len_flags *lbalen; 6917 uint64_t lba; 6918 uint32_t alloc_len, total_len; 6919 int retval; 6920 6921 CTL_DEBUG_PRINT(("ctl_get_lba_status\n")); 6922 6923 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6924 cdb = (struct scsi_get_lba_status *)ctsio->cdb; 6925 lba = scsi_8btou64(cdb->addr); 6926 alloc_len = scsi_4btoul(cdb->alloc_len); 6927 6928 if (lba > lun->be_lun->maxlba) { 6929 ctl_set_lba_out_of_range(ctsio); 6930 ctl_done((union ctl_io *)ctsio); 6931 return (CTL_RETVAL_COMPLETE); 6932 } 6933 6934 total_len = sizeof(*data) + sizeof(data->descr[0]); 6935 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 6936 data = (struct scsi_get_lba_status_data *)ctsio->kern_data_ptr; 6937 6938 if (total_len < alloc_len) { 6939 ctsio->residual = alloc_len - total_len; 6940 ctsio->kern_data_len = total_len; 6941 ctsio->kern_total_len = total_len; 6942 } else { 6943 ctsio->residual = 0; 6944 ctsio->kern_data_len = alloc_len; 6945 ctsio->kern_total_len = alloc_len; 6946 } 6947 ctsio->kern_data_resid = 0; 6948 ctsio->kern_rel_offset = 0; 6949 ctsio->kern_sg_entries = 0; 6950 6951 /* Fill dummy data in case backend can't tell anything. */ 6952 scsi_ulto4b(4 + sizeof(data->descr[0]), data->length); 6953 scsi_u64to8b(lba, data->descr[0].addr); 6954 scsi_ulto4b(MIN(UINT32_MAX, lun->be_lun->maxlba + 1 - lba), 6955 data->descr[0].length); 6956 data->descr[0].status = 0; /* Mapped or unknown. */ 6957 6958 ctl_set_success(ctsio); 6959 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6960 ctsio->be_move_done = ctl_config_move_done; 6961 6962 lbalen = (struct ctl_lba_len_flags *)&ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 6963 lbalen->lba = lba; 6964 lbalen->len = total_len; 6965 lbalen->flags = 0; 6966 retval = lun->backend->config_read((union ctl_io *)ctsio); 6967 return (CTL_RETVAL_COMPLETE); 6968} 6969 6970int 6971ctl_read_defect(struct ctl_scsiio *ctsio) 6972{ 6973 struct scsi_read_defect_data_10 *ccb10; 6974 struct scsi_read_defect_data_12 *ccb12; 6975 struct scsi_read_defect_data_hdr_10 *data10; 6976 struct scsi_read_defect_data_hdr_12 *data12; 6977 uint32_t alloc_len, data_len; 6978 uint8_t format; 6979 6980 CTL_DEBUG_PRINT(("ctl_read_defect\n")); 6981 6982 if (ctsio->cdb[0] == READ_DEFECT_DATA_10) { 6983 ccb10 = (struct scsi_read_defect_data_10 *)&ctsio->cdb; 6984 format = ccb10->format; 6985 alloc_len = scsi_2btoul(ccb10->alloc_length); 6986 data_len = sizeof(*data10); 6987 } else { 6988 ccb12 = (struct scsi_read_defect_data_12 *)&ctsio->cdb; 6989 format = ccb12->format; 6990 alloc_len = scsi_4btoul(ccb12->alloc_length); 6991 data_len = sizeof(*data12); 6992 } 6993 if (alloc_len == 0) { 6994 ctl_set_success(ctsio); 6995 ctl_done((union ctl_io *)ctsio); 6996 return (CTL_RETVAL_COMPLETE); 6997 } 6998 6999 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 7000 if (data_len < alloc_len) { 7001 ctsio->residual = alloc_len - data_len; 7002 ctsio->kern_data_len = data_len; 7003 ctsio->kern_total_len = data_len; 7004 } else { 7005 ctsio->residual = 0; 7006 ctsio->kern_data_len = alloc_len; 7007 ctsio->kern_total_len = alloc_len; 7008 } 7009 ctsio->kern_data_resid = 0; 7010 ctsio->kern_rel_offset = 0; 7011 ctsio->kern_sg_entries = 0; 7012 7013 if (ctsio->cdb[0] == READ_DEFECT_DATA_10) { 7014 data10 = (struct scsi_read_defect_data_hdr_10 *) 7015 ctsio->kern_data_ptr; 7016 data10->format = format; 7017 scsi_ulto2b(0, data10->length); 7018 } else { 7019 data12 = (struct scsi_read_defect_data_hdr_12 *) 7020 ctsio->kern_data_ptr; 7021 data12->format = format; 7022 scsi_ulto2b(0, data12->generation); 7023 scsi_ulto4b(0, data12->length); 7024 } 7025 7026 ctl_set_success(ctsio); 7027 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7028 ctsio->be_move_done = ctl_config_move_done; 7029 ctl_datamove((union ctl_io *)ctsio); 7030 return (CTL_RETVAL_COMPLETE); 7031} 7032 7033int 7034ctl_report_tagret_port_groups(struct ctl_scsiio *ctsio) 7035{ 7036 struct scsi_maintenance_in *cdb; 7037 int retval; 7038 int alloc_len, ext, total_len = 0, g, pc, pg, gs, os; 7039 int num_target_port_groups, num_target_ports; 7040 struct ctl_lun *lun; 7041 struct ctl_softc *softc; 7042 struct ctl_port *port; 7043 struct scsi_target_group_data *rtg_ptr; 7044 struct scsi_target_group_data_extended *rtg_ext_ptr; 7045 struct scsi_target_port_group_descriptor *tpg_desc; 7046 7047 CTL_DEBUG_PRINT(("ctl_report_tagret_port_groups\n")); 7048 7049 cdb = (struct scsi_maintenance_in *)ctsio->cdb; 7050 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7051 softc = lun->ctl_softc; 7052 7053 retval = CTL_RETVAL_COMPLETE; 7054 7055 switch (cdb->byte2 & STG_PDF_MASK) { 7056 case STG_PDF_LENGTH: 7057 ext = 0; 7058 break; 7059 case STG_PDF_EXTENDED: 7060 ext = 1; 7061 break; 7062 default: 7063 ctl_set_invalid_field(/*ctsio*/ ctsio, 7064 /*sks_valid*/ 1, 7065 /*command*/ 1, 7066 /*field*/ 2, 7067 /*bit_valid*/ 1, 7068 /*bit*/ 5); 7069 ctl_done((union ctl_io *)ctsio); 7070 return(retval); 7071 } 7072 7073 if (softc->is_single) 7074 num_target_port_groups = 1; 7075 else 7076 num_target_port_groups = NUM_TARGET_PORT_GROUPS; 7077 num_target_ports = 0; 7078 mtx_lock(&softc->ctl_lock); 7079 STAILQ_FOREACH(port, &softc->port_list, links) { 7080 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 7081 continue; 7082 if (ctl_lun_map_to_port(port, lun->lun) >= CTL_MAX_LUNS) 7083 continue; 7084 num_target_ports++; 7085 } 7086 mtx_unlock(&softc->ctl_lock); 7087 7088 if (ext) 7089 total_len = sizeof(struct scsi_target_group_data_extended); 7090 else 7091 total_len = sizeof(struct scsi_target_group_data); 7092 total_len += sizeof(struct scsi_target_port_group_descriptor) * 7093 num_target_port_groups + 7094 sizeof(struct scsi_target_port_descriptor) * num_target_ports; 7095 7096 alloc_len = scsi_4btoul(cdb->length); 7097 7098 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7099 7100 ctsio->kern_sg_entries = 0; 7101 7102 if (total_len < alloc_len) { 7103 ctsio->residual = alloc_len - total_len; 7104 ctsio->kern_data_len = total_len; 7105 ctsio->kern_total_len = total_len; 7106 } else { 7107 ctsio->residual = 0; 7108 ctsio->kern_data_len = alloc_len; 7109 ctsio->kern_total_len = alloc_len; 7110 } 7111 ctsio->kern_data_resid = 0; 7112 ctsio->kern_rel_offset = 0; 7113 7114 if (ext) { 7115 rtg_ext_ptr = (struct scsi_target_group_data_extended *) 7116 ctsio->kern_data_ptr; 7117 scsi_ulto4b(total_len - 4, rtg_ext_ptr->length); 7118 rtg_ext_ptr->format_type = 0x10; 7119 rtg_ext_ptr->implicit_transition_time = 0; 7120 tpg_desc = &rtg_ext_ptr->groups[0]; 7121 } else { 7122 rtg_ptr = (struct scsi_target_group_data *) 7123 ctsio->kern_data_ptr; 7124 scsi_ulto4b(total_len - 4, rtg_ptr->length); 7125 tpg_desc = &rtg_ptr->groups[0]; 7126 } 7127 7128 mtx_lock(&softc->ctl_lock); 7129 pg = softc->port_min / softc->port_cnt; 7130 if (softc->ha_link == CTL_HA_LINK_OFFLINE) 7131 gs = TPG_ASYMMETRIC_ACCESS_UNAVAILABLE; 7132 else if (softc->ha_link == CTL_HA_LINK_UNKNOWN) 7133 gs = TPG_ASYMMETRIC_ACCESS_TRANSITIONING; 7134 else if (softc->ha_mode == CTL_HA_MODE_ACT_STBY) 7135 gs = TPG_ASYMMETRIC_ACCESS_STANDBY; 7136 else 7137 gs = TPG_ASYMMETRIC_ACCESS_NONOPTIMIZED; 7138 if (lun->flags & CTL_LUN_PRIMARY_SC) { 7139 os = gs; 7140 gs = TPG_ASYMMETRIC_ACCESS_OPTIMIZED; 7141 } else 7142 os = TPG_ASYMMETRIC_ACCESS_OPTIMIZED; 7143 for (g = 0; g < num_target_port_groups; g++) { 7144 tpg_desc->pref_state = (g == pg) ? gs : os; 7145 tpg_desc->support = TPG_AO_SUP | TPG_AN_SUP | TPG_S_SUP | 7146 TPG_U_SUP | TPG_T_SUP; 7147 scsi_ulto2b(g + 1, tpg_desc->target_port_group); 7148 tpg_desc->status = TPG_IMPLICIT; 7149 pc = 0; 7150 STAILQ_FOREACH(port, &softc->port_list, links) { 7151 if (port->targ_port < g * softc->port_cnt || 7152 port->targ_port >= (g + 1) * softc->port_cnt) 7153 continue; 7154 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 7155 continue; 7156 if (ctl_lun_map_to_port(port, lun->lun) >= CTL_MAX_LUNS) 7157 continue; 7158 scsi_ulto2b(port->targ_port, tpg_desc->descriptors[pc]. 7159 relative_target_port_identifier); 7160 pc++; 7161 } 7162 tpg_desc->target_port_count = pc; 7163 tpg_desc = (struct scsi_target_port_group_descriptor *) 7164 &tpg_desc->descriptors[pc]; 7165 } 7166 mtx_unlock(&softc->ctl_lock); 7167 7168 ctl_set_success(ctsio); 7169 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7170 ctsio->be_move_done = ctl_config_move_done; 7171 ctl_datamove((union ctl_io *)ctsio); 7172 return(retval); 7173} 7174 7175int 7176ctl_report_supported_opcodes(struct ctl_scsiio *ctsio) 7177{ 7178 struct ctl_lun *lun; 7179 struct scsi_report_supported_opcodes *cdb; 7180 const struct ctl_cmd_entry *entry, *sentry; 7181 struct scsi_report_supported_opcodes_all *all; 7182 struct scsi_report_supported_opcodes_descr *descr; 7183 struct scsi_report_supported_opcodes_one *one; 7184 int retval; 7185 int alloc_len, total_len; 7186 int opcode, service_action, i, j, num; 7187 7188 CTL_DEBUG_PRINT(("ctl_report_supported_opcodes\n")); 7189 7190 cdb = (struct scsi_report_supported_opcodes *)ctsio->cdb; 7191 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7192 7193 retval = CTL_RETVAL_COMPLETE; 7194 7195 opcode = cdb->requested_opcode; 7196 service_action = scsi_2btoul(cdb->requested_service_action); 7197 switch (cdb->options & RSO_OPTIONS_MASK) { 7198 case RSO_OPTIONS_ALL: 7199 num = 0; 7200 for (i = 0; i < 256; i++) { 7201 entry = &ctl_cmd_table[i]; 7202 if (entry->flags & CTL_CMD_FLAG_SA5) { 7203 for (j = 0; j < 32; j++) { 7204 sentry = &((const struct ctl_cmd_entry *) 7205 entry->execute)[j]; 7206 if (ctl_cmd_applicable( 7207 lun->be_lun->lun_type, sentry)) 7208 num++; 7209 } 7210 } else { 7211 if (ctl_cmd_applicable(lun->be_lun->lun_type, 7212 entry)) 7213 num++; 7214 } 7215 } 7216 total_len = sizeof(struct scsi_report_supported_opcodes_all) + 7217 num * sizeof(struct scsi_report_supported_opcodes_descr); 7218 break; 7219 case RSO_OPTIONS_OC: 7220 if (ctl_cmd_table[opcode].flags & CTL_CMD_FLAG_SA5) { 7221 ctl_set_invalid_field(/*ctsio*/ ctsio, 7222 /*sks_valid*/ 1, 7223 /*command*/ 1, 7224 /*field*/ 2, 7225 /*bit_valid*/ 1, 7226 /*bit*/ 2); 7227 ctl_done((union ctl_io *)ctsio); 7228 return (CTL_RETVAL_COMPLETE); 7229 } 7230 total_len = sizeof(struct scsi_report_supported_opcodes_one) + 32; 7231 break; 7232 case RSO_OPTIONS_OC_SA: 7233 if ((ctl_cmd_table[opcode].flags & CTL_CMD_FLAG_SA5) == 0 || 7234 service_action >= 32) { 7235 ctl_set_invalid_field(/*ctsio*/ ctsio, 7236 /*sks_valid*/ 1, 7237 /*command*/ 1, 7238 /*field*/ 2, 7239 /*bit_valid*/ 1, 7240 /*bit*/ 2); 7241 ctl_done((union ctl_io *)ctsio); 7242 return (CTL_RETVAL_COMPLETE); 7243 } 7244 total_len = sizeof(struct scsi_report_supported_opcodes_one) + 32; 7245 break; 7246 default: 7247 ctl_set_invalid_field(/*ctsio*/ ctsio, 7248 /*sks_valid*/ 1, 7249 /*command*/ 1, 7250 /*field*/ 2, 7251 /*bit_valid*/ 1, 7252 /*bit*/ 2); 7253 ctl_done((union ctl_io *)ctsio); 7254 return (CTL_RETVAL_COMPLETE); 7255 } 7256 7257 alloc_len = scsi_4btoul(cdb->length); 7258 7259 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7260 7261 ctsio->kern_sg_entries = 0; 7262 7263 if (total_len < alloc_len) { 7264 ctsio->residual = alloc_len - total_len; 7265 ctsio->kern_data_len = total_len; 7266 ctsio->kern_total_len = total_len; 7267 } else { 7268 ctsio->residual = 0; 7269 ctsio->kern_data_len = alloc_len; 7270 ctsio->kern_total_len = alloc_len; 7271 } 7272 ctsio->kern_data_resid = 0; 7273 ctsio->kern_rel_offset = 0; 7274 7275 switch (cdb->options & RSO_OPTIONS_MASK) { 7276 case RSO_OPTIONS_ALL: 7277 all = (struct scsi_report_supported_opcodes_all *) 7278 ctsio->kern_data_ptr; 7279 num = 0; 7280 for (i = 0; i < 256; i++) { 7281 entry = &ctl_cmd_table[i]; 7282 if (entry->flags & CTL_CMD_FLAG_SA5) { 7283 for (j = 0; j < 32; j++) { 7284 sentry = &((const struct ctl_cmd_entry *) 7285 entry->execute)[j]; 7286 if (!ctl_cmd_applicable( 7287 lun->be_lun->lun_type, sentry)) 7288 continue; 7289 descr = &all->descr[num++]; 7290 descr->opcode = i; 7291 scsi_ulto2b(j, descr->service_action); 7292 descr->flags = RSO_SERVACTV; 7293 scsi_ulto2b(sentry->length, 7294 descr->cdb_length); 7295 } 7296 } else { 7297 if (!ctl_cmd_applicable(lun->be_lun->lun_type, 7298 entry)) 7299 continue; 7300 descr = &all->descr[num++]; 7301 descr->opcode = i; 7302 scsi_ulto2b(0, descr->service_action); 7303 descr->flags = 0; 7304 scsi_ulto2b(entry->length, descr->cdb_length); 7305 } 7306 } 7307 scsi_ulto4b( 7308 num * sizeof(struct scsi_report_supported_opcodes_descr), 7309 all->length); 7310 break; 7311 case RSO_OPTIONS_OC: 7312 one = (struct scsi_report_supported_opcodes_one *) 7313 ctsio->kern_data_ptr; 7314 entry = &ctl_cmd_table[opcode]; 7315 goto fill_one; 7316 case RSO_OPTIONS_OC_SA: 7317 one = (struct scsi_report_supported_opcodes_one *) 7318 ctsio->kern_data_ptr; 7319 entry = &ctl_cmd_table[opcode]; 7320 entry = &((const struct ctl_cmd_entry *) 7321 entry->execute)[service_action]; 7322fill_one: 7323 if (ctl_cmd_applicable(lun->be_lun->lun_type, entry)) { 7324 one->support = 3; 7325 scsi_ulto2b(entry->length, one->cdb_length); 7326 one->cdb_usage[0] = opcode; 7327 memcpy(&one->cdb_usage[1], entry->usage, 7328 entry->length - 1); 7329 } else 7330 one->support = 1; 7331 break; 7332 } 7333 7334 ctl_set_success(ctsio); 7335 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7336 ctsio->be_move_done = ctl_config_move_done; 7337 ctl_datamove((union ctl_io *)ctsio); 7338 return(retval); 7339} 7340 7341int 7342ctl_report_supported_tmf(struct ctl_scsiio *ctsio) 7343{ 7344 struct scsi_report_supported_tmf *cdb; 7345 struct scsi_report_supported_tmf_data *data; 7346 int retval; 7347 int alloc_len, total_len; 7348 7349 CTL_DEBUG_PRINT(("ctl_report_supported_tmf\n")); 7350 7351 cdb = (struct scsi_report_supported_tmf *)ctsio->cdb; 7352 7353 retval = CTL_RETVAL_COMPLETE; 7354 7355 total_len = sizeof(struct scsi_report_supported_tmf_data); 7356 alloc_len = scsi_4btoul(cdb->length); 7357 7358 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7359 7360 ctsio->kern_sg_entries = 0; 7361 7362 if (total_len < alloc_len) { 7363 ctsio->residual = alloc_len - total_len; 7364 ctsio->kern_data_len = total_len; 7365 ctsio->kern_total_len = total_len; 7366 } else { 7367 ctsio->residual = 0; 7368 ctsio->kern_data_len = alloc_len; 7369 ctsio->kern_total_len = alloc_len; 7370 } 7371 ctsio->kern_data_resid = 0; 7372 ctsio->kern_rel_offset = 0; 7373 7374 data = (struct scsi_report_supported_tmf_data *)ctsio->kern_data_ptr; 7375 data->byte1 |= RST_ATS | RST_ATSS | RST_CTSS | RST_LURS | RST_QTS | 7376 RST_TRS; 7377 data->byte2 |= RST_QAES | RST_QTSS | RST_ITNRS; 7378 7379 ctl_set_success(ctsio); 7380 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7381 ctsio->be_move_done = ctl_config_move_done; 7382 ctl_datamove((union ctl_io *)ctsio); 7383 return (retval); 7384} 7385 7386int 7387ctl_report_timestamp(struct ctl_scsiio *ctsio) 7388{ 7389 struct scsi_report_timestamp *cdb; 7390 struct scsi_report_timestamp_data *data; 7391 struct timeval tv; 7392 int64_t timestamp; 7393 int retval; 7394 int alloc_len, total_len; 7395 7396 CTL_DEBUG_PRINT(("ctl_report_timestamp\n")); 7397 7398 cdb = (struct scsi_report_timestamp *)ctsio->cdb; 7399 7400 retval = CTL_RETVAL_COMPLETE; 7401 7402 total_len = sizeof(struct scsi_report_timestamp_data); 7403 alloc_len = scsi_4btoul(cdb->length); 7404 7405 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7406 7407 ctsio->kern_sg_entries = 0; 7408 7409 if (total_len < alloc_len) { 7410 ctsio->residual = alloc_len - total_len; 7411 ctsio->kern_data_len = total_len; 7412 ctsio->kern_total_len = total_len; 7413 } else { 7414 ctsio->residual = 0; 7415 ctsio->kern_data_len = alloc_len; 7416 ctsio->kern_total_len = alloc_len; 7417 } 7418 ctsio->kern_data_resid = 0; 7419 ctsio->kern_rel_offset = 0; 7420 7421 data = (struct scsi_report_timestamp_data *)ctsio->kern_data_ptr; 7422 scsi_ulto2b(sizeof(*data) - 2, data->length); 7423 data->origin = RTS_ORIG_OUTSIDE; 7424 getmicrotime(&tv); 7425 timestamp = (int64_t)tv.tv_sec * 1000 + tv.tv_usec / 1000; 7426 scsi_ulto4b(timestamp >> 16, data->timestamp); 7427 scsi_ulto2b(timestamp & 0xffff, &data->timestamp[4]); 7428 7429 ctl_set_success(ctsio); 7430 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7431 ctsio->be_move_done = ctl_config_move_done; 7432 ctl_datamove((union ctl_io *)ctsio); 7433 return (retval); 7434} 7435 7436int 7437ctl_persistent_reserve_in(struct ctl_scsiio *ctsio) 7438{ 7439 struct scsi_per_res_in *cdb; 7440 int alloc_len, total_len = 0; 7441 /* struct scsi_per_res_in_rsrv in_data; */ 7442 struct ctl_lun *lun; 7443 struct ctl_softc *softc; 7444 uint64_t key; 7445 7446 CTL_DEBUG_PRINT(("ctl_persistent_reserve_in\n")); 7447 7448 cdb = (struct scsi_per_res_in *)ctsio->cdb; 7449 7450 alloc_len = scsi_2btoul(cdb->length); 7451 7452 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7453 softc = lun->ctl_softc; 7454 7455retry: 7456 mtx_lock(&lun->lun_lock); 7457 switch (cdb->action) { 7458 case SPRI_RK: /* read keys */ 7459 total_len = sizeof(struct scsi_per_res_in_keys) + 7460 lun->pr_key_count * 7461 sizeof(struct scsi_per_res_key); 7462 break; 7463 case SPRI_RR: /* read reservation */ 7464 if (lun->flags & CTL_LUN_PR_RESERVED) 7465 total_len = sizeof(struct scsi_per_res_in_rsrv); 7466 else 7467 total_len = sizeof(struct scsi_per_res_in_header); 7468 break; 7469 case SPRI_RC: /* report capabilities */ 7470 total_len = sizeof(struct scsi_per_res_cap); 7471 break; 7472 case SPRI_RS: /* read full status */ 7473 total_len = sizeof(struct scsi_per_res_in_header) + 7474 (sizeof(struct scsi_per_res_in_full_desc) + 256) * 7475 lun->pr_key_count; 7476 break; 7477 default: 7478 panic("Invalid PR type %x", cdb->action); 7479 } 7480 mtx_unlock(&lun->lun_lock); 7481 7482 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7483 7484 if (total_len < alloc_len) { 7485 ctsio->residual = alloc_len - total_len; 7486 ctsio->kern_data_len = total_len; 7487 ctsio->kern_total_len = total_len; 7488 } else { 7489 ctsio->residual = 0; 7490 ctsio->kern_data_len = alloc_len; 7491 ctsio->kern_total_len = alloc_len; 7492 } 7493 7494 ctsio->kern_data_resid = 0; 7495 ctsio->kern_rel_offset = 0; 7496 ctsio->kern_sg_entries = 0; 7497 7498 mtx_lock(&lun->lun_lock); 7499 switch (cdb->action) { 7500 case SPRI_RK: { // read keys 7501 struct scsi_per_res_in_keys *res_keys; 7502 int i, key_count; 7503 7504 res_keys = (struct scsi_per_res_in_keys*)ctsio->kern_data_ptr; 7505 7506 /* 7507 * We had to drop the lock to allocate our buffer, which 7508 * leaves time for someone to come in with another 7509 * persistent reservation. (That is unlikely, though, 7510 * since this should be the only persistent reservation 7511 * command active right now.) 7512 */ 7513 if (total_len != (sizeof(struct scsi_per_res_in_keys) + 7514 (lun->pr_key_count * 7515 sizeof(struct scsi_per_res_key)))){ 7516 mtx_unlock(&lun->lun_lock); 7517 free(ctsio->kern_data_ptr, M_CTL); 7518 printf("%s: reservation length changed, retrying\n", 7519 __func__); 7520 goto retry; 7521 } 7522 7523 scsi_ulto4b(lun->PRGeneration, res_keys->header.generation); 7524 7525 scsi_ulto4b(sizeof(struct scsi_per_res_key) * 7526 lun->pr_key_count, res_keys->header.length); 7527 7528 for (i = 0, key_count = 0; i < CTL_MAX_INITIATORS; i++) { 7529 if ((key = ctl_get_prkey(lun, i)) == 0) 7530 continue; 7531 7532 /* 7533 * We used lun->pr_key_count to calculate the 7534 * size to allocate. If it turns out the number of 7535 * initiators with the registered flag set is 7536 * larger than that (i.e. they haven't been kept in 7537 * sync), we've got a problem. 7538 */ 7539 if (key_count >= lun->pr_key_count) { 7540 key_count++; 7541 continue; 7542 } 7543 scsi_u64to8b(key, res_keys->keys[key_count].key); 7544 key_count++; 7545 } 7546 break; 7547 } 7548 case SPRI_RR: { // read reservation 7549 struct scsi_per_res_in_rsrv *res; 7550 int tmp_len, header_only; 7551 7552 res = (struct scsi_per_res_in_rsrv *)ctsio->kern_data_ptr; 7553 7554 scsi_ulto4b(lun->PRGeneration, res->header.generation); 7555 7556 if (lun->flags & CTL_LUN_PR_RESERVED) 7557 { 7558 tmp_len = sizeof(struct scsi_per_res_in_rsrv); 7559 scsi_ulto4b(sizeof(struct scsi_per_res_in_rsrv_data), 7560 res->header.length); 7561 header_only = 0; 7562 } else { 7563 tmp_len = sizeof(struct scsi_per_res_in_header); 7564 scsi_ulto4b(0, res->header.length); 7565 header_only = 1; 7566 } 7567 7568 /* 7569 * We had to drop the lock to allocate our buffer, which 7570 * leaves time for someone to come in with another 7571 * persistent reservation. (That is unlikely, though, 7572 * since this should be the only persistent reservation 7573 * command active right now.) 7574 */ 7575 if (tmp_len != total_len) { 7576 mtx_unlock(&lun->lun_lock); 7577 free(ctsio->kern_data_ptr, M_CTL); 7578 printf("%s: reservation status changed, retrying\n", 7579 __func__); 7580 goto retry; 7581 } 7582 7583 /* 7584 * No reservation held, so we're done. 7585 */ 7586 if (header_only != 0) 7587 break; 7588 7589 /* 7590 * If the registration is an All Registrants type, the key 7591 * is 0, since it doesn't really matter. 7592 */ 7593 if (lun->pr_res_idx != CTL_PR_ALL_REGISTRANTS) { 7594 scsi_u64to8b(ctl_get_prkey(lun, lun->pr_res_idx), 7595 res->data.reservation); 7596 } 7597 res->data.scopetype = lun->res_type; 7598 break; 7599 } 7600 case SPRI_RC: //report capabilities 7601 { 7602 struct scsi_per_res_cap *res_cap; 7603 uint16_t type_mask; 7604 7605 res_cap = (struct scsi_per_res_cap *)ctsio->kern_data_ptr; 7606 scsi_ulto2b(sizeof(*res_cap), res_cap->length); 7607 res_cap->flags2 |= SPRI_TMV | SPRI_ALLOW_5; 7608 type_mask = SPRI_TM_WR_EX_AR | 7609 SPRI_TM_EX_AC_RO | 7610 SPRI_TM_WR_EX_RO | 7611 SPRI_TM_EX_AC | 7612 SPRI_TM_WR_EX | 7613 SPRI_TM_EX_AC_AR; 7614 scsi_ulto2b(type_mask, res_cap->type_mask); 7615 break; 7616 } 7617 case SPRI_RS: { // read full status 7618 struct scsi_per_res_in_full *res_status; 7619 struct scsi_per_res_in_full_desc *res_desc; 7620 struct ctl_port *port; 7621 int i, len; 7622 7623 res_status = (struct scsi_per_res_in_full*)ctsio->kern_data_ptr; 7624 7625 /* 7626 * We had to drop the lock to allocate our buffer, which 7627 * leaves time for someone to come in with another 7628 * persistent reservation. (That is unlikely, though, 7629 * since this should be the only persistent reservation 7630 * command active right now.) 7631 */ 7632 if (total_len < (sizeof(struct scsi_per_res_in_header) + 7633 (sizeof(struct scsi_per_res_in_full_desc) + 256) * 7634 lun->pr_key_count)){ 7635 mtx_unlock(&lun->lun_lock); 7636 free(ctsio->kern_data_ptr, M_CTL); 7637 printf("%s: reservation length changed, retrying\n", 7638 __func__); 7639 goto retry; 7640 } 7641 7642 scsi_ulto4b(lun->PRGeneration, res_status->header.generation); 7643 7644 res_desc = &res_status->desc[0]; 7645 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 7646 if ((key = ctl_get_prkey(lun, i)) == 0) 7647 continue; 7648 7649 scsi_u64to8b(key, res_desc->res_key.key); 7650 if ((lun->flags & CTL_LUN_PR_RESERVED) && 7651 (lun->pr_res_idx == i || 7652 lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS)) { 7653 res_desc->flags = SPRI_FULL_R_HOLDER; 7654 res_desc->scopetype = lun->res_type; 7655 } 7656 scsi_ulto2b(i / CTL_MAX_INIT_PER_PORT, 7657 res_desc->rel_trgt_port_id); 7658 len = 0; 7659 port = softc->ctl_ports[i / CTL_MAX_INIT_PER_PORT]; 7660 if (port != NULL) 7661 len = ctl_create_iid(port, 7662 i % CTL_MAX_INIT_PER_PORT, 7663 res_desc->transport_id); 7664 scsi_ulto4b(len, res_desc->additional_length); 7665 res_desc = (struct scsi_per_res_in_full_desc *) 7666 &res_desc->transport_id[len]; 7667 } 7668 scsi_ulto4b((uint8_t *)res_desc - (uint8_t *)&res_status->desc[0], 7669 res_status->header.length); 7670 break; 7671 } 7672 default: 7673 /* 7674 * This is a bug, because we just checked for this above, 7675 * and should have returned an error. 7676 */ 7677 panic("Invalid PR type %x", cdb->action); 7678 break; /* NOTREACHED */ 7679 } 7680 mtx_unlock(&lun->lun_lock); 7681 7682 ctl_set_success(ctsio); 7683 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7684 ctsio->be_move_done = ctl_config_move_done; 7685 ctl_datamove((union ctl_io *)ctsio); 7686 return (CTL_RETVAL_COMPLETE); 7687} 7688 7689/* 7690 * Returns 0 if ctl_persistent_reserve_out() should continue, non-zero if 7691 * it should return. 7692 */ 7693static int 7694ctl_pro_preempt(struct ctl_softc *softc, struct ctl_lun *lun, uint64_t res_key, 7695 uint64_t sa_res_key, uint8_t type, uint32_t residx, 7696 struct ctl_scsiio *ctsio, struct scsi_per_res_out *cdb, 7697 struct scsi_per_res_out_parms* param) 7698{ 7699 union ctl_ha_msg persis_io; 7700 int i; 7701 7702 mtx_lock(&lun->lun_lock); 7703 if (sa_res_key == 0) { 7704 if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS) { 7705 /* validate scope and type */ 7706 if ((cdb->scope_type & SPR_SCOPE_MASK) != 7707 SPR_LU_SCOPE) { 7708 mtx_unlock(&lun->lun_lock); 7709 ctl_set_invalid_field(/*ctsio*/ ctsio, 7710 /*sks_valid*/ 1, 7711 /*command*/ 1, 7712 /*field*/ 2, 7713 /*bit_valid*/ 1, 7714 /*bit*/ 4); 7715 ctl_done((union ctl_io *)ctsio); 7716 return (1); 7717 } 7718 7719 if (type>8 || type==2 || type==4 || type==0) { 7720 mtx_unlock(&lun->lun_lock); 7721 ctl_set_invalid_field(/*ctsio*/ ctsio, 7722 /*sks_valid*/ 1, 7723 /*command*/ 1, 7724 /*field*/ 2, 7725 /*bit_valid*/ 1, 7726 /*bit*/ 0); 7727 ctl_done((union ctl_io *)ctsio); 7728 return (1); 7729 } 7730 7731 /* 7732 * Unregister everybody else and build UA for 7733 * them 7734 */ 7735 for(i = 0; i < CTL_MAX_INITIATORS; i++) { 7736 if (i == residx || ctl_get_prkey(lun, i) == 0) 7737 continue; 7738 7739 ctl_clr_prkey(lun, i); 7740 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 7741 } 7742 lun->pr_key_count = 1; 7743 lun->res_type = type; 7744 if (lun->res_type != SPR_TYPE_WR_EX_AR 7745 && lun->res_type != SPR_TYPE_EX_AC_AR) 7746 lun->pr_res_idx = residx; 7747 lun->PRGeneration++; 7748 mtx_unlock(&lun->lun_lock); 7749 7750 /* send msg to other side */ 7751 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 7752 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 7753 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 7754 persis_io.pr.pr_info.residx = lun->pr_res_idx; 7755 persis_io.pr.pr_info.res_type = type; 7756 memcpy(persis_io.pr.pr_info.sa_res_key, 7757 param->serv_act_res_key, 7758 sizeof(param->serv_act_res_key)); 7759 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 7760 sizeof(persis_io.pr), M_WAITOK); 7761 } else { 7762 /* not all registrants */ 7763 mtx_unlock(&lun->lun_lock); 7764 free(ctsio->kern_data_ptr, M_CTL); 7765 ctl_set_invalid_field(ctsio, 7766 /*sks_valid*/ 1, 7767 /*command*/ 0, 7768 /*field*/ 8, 7769 /*bit_valid*/ 0, 7770 /*bit*/ 0); 7771 ctl_done((union ctl_io *)ctsio); 7772 return (1); 7773 } 7774 } else if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS 7775 || !(lun->flags & CTL_LUN_PR_RESERVED)) { 7776 int found = 0; 7777 7778 if (res_key == sa_res_key) { 7779 /* special case */ 7780 /* 7781 * The spec implies this is not good but doesn't 7782 * say what to do. There are two choices either 7783 * generate a res conflict or check condition 7784 * with illegal field in parameter data. Since 7785 * that is what is done when the sa_res_key is 7786 * zero I'll take that approach since this has 7787 * to do with the sa_res_key. 7788 */ 7789 mtx_unlock(&lun->lun_lock); 7790 free(ctsio->kern_data_ptr, M_CTL); 7791 ctl_set_invalid_field(ctsio, 7792 /*sks_valid*/ 1, 7793 /*command*/ 0, 7794 /*field*/ 8, 7795 /*bit_valid*/ 0, 7796 /*bit*/ 0); 7797 ctl_done((union ctl_io *)ctsio); 7798 return (1); 7799 } 7800 7801 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 7802 if (ctl_get_prkey(lun, i) != sa_res_key) 7803 continue; 7804 7805 found = 1; 7806 ctl_clr_prkey(lun, i); 7807 lun->pr_key_count--; 7808 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 7809 } 7810 if (!found) { 7811 mtx_unlock(&lun->lun_lock); 7812 free(ctsio->kern_data_ptr, M_CTL); 7813 ctl_set_reservation_conflict(ctsio); 7814 ctl_done((union ctl_io *)ctsio); 7815 return (CTL_RETVAL_COMPLETE); 7816 } 7817 lun->PRGeneration++; 7818 mtx_unlock(&lun->lun_lock); 7819 7820 /* send msg to other side */ 7821 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 7822 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 7823 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 7824 persis_io.pr.pr_info.residx = lun->pr_res_idx; 7825 persis_io.pr.pr_info.res_type = type; 7826 memcpy(persis_io.pr.pr_info.sa_res_key, 7827 param->serv_act_res_key, 7828 sizeof(param->serv_act_res_key)); 7829 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 7830 sizeof(persis_io.pr), M_WAITOK); 7831 } else { 7832 /* Reserved but not all registrants */ 7833 /* sa_res_key is res holder */ 7834 if (sa_res_key == ctl_get_prkey(lun, lun->pr_res_idx)) { 7835 /* validate scope and type */ 7836 if ((cdb->scope_type & SPR_SCOPE_MASK) != 7837 SPR_LU_SCOPE) { 7838 mtx_unlock(&lun->lun_lock); 7839 ctl_set_invalid_field(/*ctsio*/ ctsio, 7840 /*sks_valid*/ 1, 7841 /*command*/ 1, 7842 /*field*/ 2, 7843 /*bit_valid*/ 1, 7844 /*bit*/ 4); 7845 ctl_done((union ctl_io *)ctsio); 7846 return (1); 7847 } 7848 7849 if (type>8 || type==2 || type==4 || type==0) { 7850 mtx_unlock(&lun->lun_lock); 7851 ctl_set_invalid_field(/*ctsio*/ ctsio, 7852 /*sks_valid*/ 1, 7853 /*command*/ 1, 7854 /*field*/ 2, 7855 /*bit_valid*/ 1, 7856 /*bit*/ 0); 7857 ctl_done((union ctl_io *)ctsio); 7858 return (1); 7859 } 7860 7861 /* 7862 * Do the following: 7863 * if sa_res_key != res_key remove all 7864 * registrants w/sa_res_key and generate UA 7865 * for these registrants(Registrations 7866 * Preempted) if it wasn't an exclusive 7867 * reservation generate UA(Reservations 7868 * Preempted) for all other registered nexuses 7869 * if the type has changed. Establish the new 7870 * reservation and holder. If res_key and 7871 * sa_res_key are the same do the above 7872 * except don't unregister the res holder. 7873 */ 7874 7875 for(i = 0; i < CTL_MAX_INITIATORS; i++) { 7876 if (i == residx || ctl_get_prkey(lun, i) == 0) 7877 continue; 7878 7879 if (sa_res_key == ctl_get_prkey(lun, i)) { 7880 ctl_clr_prkey(lun, i); 7881 lun->pr_key_count--; 7882 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 7883 } else if (type != lun->res_type 7884 && (lun->res_type == SPR_TYPE_WR_EX_RO 7885 || lun->res_type ==SPR_TYPE_EX_AC_RO)){ 7886 ctl_est_ua(lun, i, CTL_UA_RES_RELEASE); 7887 } 7888 } 7889 lun->res_type = type; 7890 if (lun->res_type != SPR_TYPE_WR_EX_AR 7891 && lun->res_type != SPR_TYPE_EX_AC_AR) 7892 lun->pr_res_idx = residx; 7893 else 7894 lun->pr_res_idx = CTL_PR_ALL_REGISTRANTS; 7895 lun->PRGeneration++; 7896 mtx_unlock(&lun->lun_lock); 7897 7898 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 7899 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 7900 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 7901 persis_io.pr.pr_info.residx = lun->pr_res_idx; 7902 persis_io.pr.pr_info.res_type = type; 7903 memcpy(persis_io.pr.pr_info.sa_res_key, 7904 param->serv_act_res_key, 7905 sizeof(param->serv_act_res_key)); 7906 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 7907 sizeof(persis_io.pr), M_WAITOK); 7908 } else { 7909 /* 7910 * sa_res_key is not the res holder just 7911 * remove registrants 7912 */ 7913 int found=0; 7914 7915 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 7916 if (sa_res_key != ctl_get_prkey(lun, i)) 7917 continue; 7918 7919 found = 1; 7920 ctl_clr_prkey(lun, i); 7921 lun->pr_key_count--; 7922 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 7923 } 7924 7925 if (!found) { 7926 mtx_unlock(&lun->lun_lock); 7927 free(ctsio->kern_data_ptr, M_CTL); 7928 ctl_set_reservation_conflict(ctsio); 7929 ctl_done((union ctl_io *)ctsio); 7930 return (1); 7931 } 7932 lun->PRGeneration++; 7933 mtx_unlock(&lun->lun_lock); 7934 7935 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 7936 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 7937 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 7938 persis_io.pr.pr_info.residx = lun->pr_res_idx; 7939 persis_io.pr.pr_info.res_type = type; 7940 memcpy(persis_io.pr.pr_info.sa_res_key, 7941 param->serv_act_res_key, 7942 sizeof(param->serv_act_res_key)); 7943 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 7944 sizeof(persis_io.pr), M_WAITOK); 7945 } 7946 } 7947 return (0); 7948} 7949 7950static void 7951ctl_pro_preempt_other(struct ctl_lun *lun, union ctl_ha_msg *msg) 7952{ 7953 uint64_t sa_res_key; 7954 int i; 7955 7956 sa_res_key = scsi_8btou64(msg->pr.pr_info.sa_res_key); 7957 7958 if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS 7959 || lun->pr_res_idx == CTL_PR_NO_RESERVATION 7960 || sa_res_key != ctl_get_prkey(lun, lun->pr_res_idx)) { 7961 if (sa_res_key == 0) { 7962 /* 7963 * Unregister everybody else and build UA for 7964 * them 7965 */ 7966 for(i = 0; i < CTL_MAX_INITIATORS; i++) { 7967 if (i == msg->pr.pr_info.residx || 7968 ctl_get_prkey(lun, i) == 0) 7969 continue; 7970 7971 ctl_clr_prkey(lun, i); 7972 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 7973 } 7974 7975 lun->pr_key_count = 1; 7976 lun->res_type = msg->pr.pr_info.res_type; 7977 if (lun->res_type != SPR_TYPE_WR_EX_AR 7978 && lun->res_type != SPR_TYPE_EX_AC_AR) 7979 lun->pr_res_idx = msg->pr.pr_info.residx; 7980 } else { 7981 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 7982 if (sa_res_key == ctl_get_prkey(lun, i)) 7983 continue; 7984 7985 ctl_clr_prkey(lun, i); 7986 lun->pr_key_count--; 7987 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 7988 } 7989 } 7990 } else { 7991 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 7992 if (i == msg->pr.pr_info.residx || 7993 ctl_get_prkey(lun, i) == 0) 7994 continue; 7995 7996 if (sa_res_key == ctl_get_prkey(lun, i)) { 7997 ctl_clr_prkey(lun, i); 7998 lun->pr_key_count--; 7999 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 8000 } else if (msg->pr.pr_info.res_type != lun->res_type 8001 && (lun->res_type == SPR_TYPE_WR_EX_RO 8002 || lun->res_type == SPR_TYPE_EX_AC_RO)) { 8003 ctl_est_ua(lun, i, CTL_UA_RES_RELEASE); 8004 } 8005 } 8006 lun->res_type = msg->pr.pr_info.res_type; 8007 if (lun->res_type != SPR_TYPE_WR_EX_AR 8008 && lun->res_type != SPR_TYPE_EX_AC_AR) 8009 lun->pr_res_idx = msg->pr.pr_info.residx; 8010 else 8011 lun->pr_res_idx = CTL_PR_ALL_REGISTRANTS; 8012 } 8013 lun->PRGeneration++; 8014 8015} 8016 8017 8018int 8019ctl_persistent_reserve_out(struct ctl_scsiio *ctsio) 8020{ 8021 int retval; 8022 u_int32_t param_len; 8023 struct scsi_per_res_out *cdb; 8024 struct ctl_lun *lun; 8025 struct scsi_per_res_out_parms* param; 8026 struct ctl_softc *softc; 8027 uint32_t residx; 8028 uint64_t res_key, sa_res_key, key; 8029 uint8_t type; 8030 union ctl_ha_msg persis_io; 8031 int i; 8032 8033 CTL_DEBUG_PRINT(("ctl_persistent_reserve_out\n")); 8034 8035 retval = CTL_RETVAL_COMPLETE; 8036 8037 cdb = (struct scsi_per_res_out *)ctsio->cdb; 8038 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 8039 softc = lun->ctl_softc; 8040 8041 /* 8042 * We only support whole-LUN scope. The scope & type are ignored for 8043 * register, register and ignore existing key and clear. 8044 * We sometimes ignore scope and type on preempts too!! 8045 * Verify reservation type here as well. 8046 */ 8047 type = cdb->scope_type & SPR_TYPE_MASK; 8048 if ((cdb->action == SPRO_RESERVE) 8049 || (cdb->action == SPRO_RELEASE)) { 8050 if ((cdb->scope_type & SPR_SCOPE_MASK) != SPR_LU_SCOPE) { 8051 ctl_set_invalid_field(/*ctsio*/ ctsio, 8052 /*sks_valid*/ 1, 8053 /*command*/ 1, 8054 /*field*/ 2, 8055 /*bit_valid*/ 1, 8056 /*bit*/ 4); 8057 ctl_done((union ctl_io *)ctsio); 8058 return (CTL_RETVAL_COMPLETE); 8059 } 8060 8061 if (type>8 || type==2 || type==4 || type==0) { 8062 ctl_set_invalid_field(/*ctsio*/ ctsio, 8063 /*sks_valid*/ 1, 8064 /*command*/ 1, 8065 /*field*/ 2, 8066 /*bit_valid*/ 1, 8067 /*bit*/ 0); 8068 ctl_done((union ctl_io *)ctsio); 8069 return (CTL_RETVAL_COMPLETE); 8070 } 8071 } 8072 8073 param_len = scsi_4btoul(cdb->length); 8074 8075 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 8076 ctsio->kern_data_ptr = malloc(param_len, M_CTL, M_WAITOK); 8077 ctsio->kern_data_len = param_len; 8078 ctsio->kern_total_len = param_len; 8079 ctsio->kern_data_resid = 0; 8080 ctsio->kern_rel_offset = 0; 8081 ctsio->kern_sg_entries = 0; 8082 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 8083 ctsio->be_move_done = ctl_config_move_done; 8084 ctl_datamove((union ctl_io *)ctsio); 8085 8086 return (CTL_RETVAL_COMPLETE); 8087 } 8088 8089 param = (struct scsi_per_res_out_parms *)ctsio->kern_data_ptr; 8090 8091 residx = ctl_get_initindex(&ctsio->io_hdr.nexus); 8092 res_key = scsi_8btou64(param->res_key.key); 8093 sa_res_key = scsi_8btou64(param->serv_act_res_key); 8094 8095 /* 8096 * Validate the reservation key here except for SPRO_REG_IGNO 8097 * This must be done for all other service actions 8098 */ 8099 if ((cdb->action & SPRO_ACTION_MASK) != SPRO_REG_IGNO) { 8100 mtx_lock(&lun->lun_lock); 8101 if ((key = ctl_get_prkey(lun, residx)) != 0) { 8102 if (res_key != key) { 8103 /* 8104 * The current key passed in doesn't match 8105 * the one the initiator previously 8106 * registered. 8107 */ 8108 mtx_unlock(&lun->lun_lock); 8109 free(ctsio->kern_data_ptr, M_CTL); 8110 ctl_set_reservation_conflict(ctsio); 8111 ctl_done((union ctl_io *)ctsio); 8112 return (CTL_RETVAL_COMPLETE); 8113 } 8114 } else if ((cdb->action & SPRO_ACTION_MASK) != SPRO_REGISTER) { 8115 /* 8116 * We are not registered 8117 */ 8118 mtx_unlock(&lun->lun_lock); 8119 free(ctsio->kern_data_ptr, M_CTL); 8120 ctl_set_reservation_conflict(ctsio); 8121 ctl_done((union ctl_io *)ctsio); 8122 return (CTL_RETVAL_COMPLETE); 8123 } else if (res_key != 0) { 8124 /* 8125 * We are not registered and trying to register but 8126 * the register key isn't zero. 8127 */ 8128 mtx_unlock(&lun->lun_lock); 8129 free(ctsio->kern_data_ptr, M_CTL); 8130 ctl_set_reservation_conflict(ctsio); 8131 ctl_done((union ctl_io *)ctsio); 8132 return (CTL_RETVAL_COMPLETE); 8133 } 8134 mtx_unlock(&lun->lun_lock); 8135 } 8136 8137 switch (cdb->action & SPRO_ACTION_MASK) { 8138 case SPRO_REGISTER: 8139 case SPRO_REG_IGNO: { 8140 8141#if 0 8142 printf("Registration received\n"); 8143#endif 8144 8145 /* 8146 * We don't support any of these options, as we report in 8147 * the read capabilities request (see 8148 * ctl_persistent_reserve_in(), above). 8149 */ 8150 if ((param->flags & SPR_SPEC_I_PT) 8151 || (param->flags & SPR_ALL_TG_PT) 8152 || (param->flags & SPR_APTPL)) { 8153 int bit_ptr; 8154 8155 if (param->flags & SPR_APTPL) 8156 bit_ptr = 0; 8157 else if (param->flags & SPR_ALL_TG_PT) 8158 bit_ptr = 2; 8159 else /* SPR_SPEC_I_PT */ 8160 bit_ptr = 3; 8161 8162 free(ctsio->kern_data_ptr, M_CTL); 8163 ctl_set_invalid_field(ctsio, 8164 /*sks_valid*/ 1, 8165 /*command*/ 0, 8166 /*field*/ 20, 8167 /*bit_valid*/ 1, 8168 /*bit*/ bit_ptr); 8169 ctl_done((union ctl_io *)ctsio); 8170 return (CTL_RETVAL_COMPLETE); 8171 } 8172 8173 mtx_lock(&lun->lun_lock); 8174 8175 /* 8176 * The initiator wants to clear the 8177 * key/unregister. 8178 */ 8179 if (sa_res_key == 0) { 8180 if ((res_key == 0 8181 && (cdb->action & SPRO_ACTION_MASK) == SPRO_REGISTER) 8182 || ((cdb->action & SPRO_ACTION_MASK) == SPRO_REG_IGNO 8183 && ctl_get_prkey(lun, residx) == 0)) { 8184 mtx_unlock(&lun->lun_lock); 8185 goto done; 8186 } 8187 8188 ctl_clr_prkey(lun, residx); 8189 lun->pr_key_count--; 8190 8191 if (residx == lun->pr_res_idx) { 8192 lun->flags &= ~CTL_LUN_PR_RESERVED; 8193 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8194 8195 if ((lun->res_type == SPR_TYPE_WR_EX_RO 8196 || lun->res_type == SPR_TYPE_EX_AC_RO) 8197 && lun->pr_key_count) { 8198 /* 8199 * If the reservation is a registrants 8200 * only type we need to generate a UA 8201 * for other registered inits. The 8202 * sense code should be RESERVATIONS 8203 * RELEASED 8204 */ 8205 8206 for (i = softc->init_min; i < softc->init_max; i++){ 8207 if (ctl_get_prkey(lun, i) == 0) 8208 continue; 8209 ctl_est_ua(lun, i, 8210 CTL_UA_RES_RELEASE); 8211 } 8212 } 8213 lun->res_type = 0; 8214 } else if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS) { 8215 if (lun->pr_key_count==0) { 8216 lun->flags &= ~CTL_LUN_PR_RESERVED; 8217 lun->res_type = 0; 8218 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8219 } 8220 } 8221 lun->PRGeneration++; 8222 mtx_unlock(&lun->lun_lock); 8223 8224 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8225 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8226 persis_io.pr.pr_info.action = CTL_PR_UNREG_KEY; 8227 persis_io.pr.pr_info.residx = residx; 8228 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8229 sizeof(persis_io.pr), M_WAITOK); 8230 } else /* sa_res_key != 0 */ { 8231 8232 /* 8233 * If we aren't registered currently then increment 8234 * the key count and set the registered flag. 8235 */ 8236 ctl_alloc_prkey(lun, residx); 8237 if (ctl_get_prkey(lun, residx) == 0) 8238 lun->pr_key_count++; 8239 ctl_set_prkey(lun, residx, sa_res_key); 8240 lun->PRGeneration++; 8241 mtx_unlock(&lun->lun_lock); 8242 8243 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8244 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8245 persis_io.pr.pr_info.action = CTL_PR_REG_KEY; 8246 persis_io.pr.pr_info.residx = residx; 8247 memcpy(persis_io.pr.pr_info.sa_res_key, 8248 param->serv_act_res_key, 8249 sizeof(param->serv_act_res_key)); 8250 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8251 sizeof(persis_io.pr), M_WAITOK); 8252 } 8253 8254 break; 8255 } 8256 case SPRO_RESERVE: 8257#if 0 8258 printf("Reserve executed type %d\n", type); 8259#endif 8260 mtx_lock(&lun->lun_lock); 8261 if (lun->flags & CTL_LUN_PR_RESERVED) { 8262 /* 8263 * if this isn't the reservation holder and it's 8264 * not a "all registrants" type or if the type is 8265 * different then we have a conflict 8266 */ 8267 if ((lun->pr_res_idx != residx 8268 && lun->pr_res_idx != CTL_PR_ALL_REGISTRANTS) 8269 || lun->res_type != type) { 8270 mtx_unlock(&lun->lun_lock); 8271 free(ctsio->kern_data_ptr, M_CTL); 8272 ctl_set_reservation_conflict(ctsio); 8273 ctl_done((union ctl_io *)ctsio); 8274 return (CTL_RETVAL_COMPLETE); 8275 } 8276 mtx_unlock(&lun->lun_lock); 8277 } else /* create a reservation */ { 8278 /* 8279 * If it's not an "all registrants" type record 8280 * reservation holder 8281 */ 8282 if (type != SPR_TYPE_WR_EX_AR 8283 && type != SPR_TYPE_EX_AC_AR) 8284 lun->pr_res_idx = residx; /* Res holder */ 8285 else 8286 lun->pr_res_idx = CTL_PR_ALL_REGISTRANTS; 8287 8288 lun->flags |= CTL_LUN_PR_RESERVED; 8289 lun->res_type = type; 8290 8291 mtx_unlock(&lun->lun_lock); 8292 8293 /* send msg to other side */ 8294 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8295 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8296 persis_io.pr.pr_info.action = CTL_PR_RESERVE; 8297 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8298 persis_io.pr.pr_info.res_type = type; 8299 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8300 sizeof(persis_io.pr), M_WAITOK); 8301 } 8302 break; 8303 8304 case SPRO_RELEASE: 8305 mtx_lock(&lun->lun_lock); 8306 if ((lun->flags & CTL_LUN_PR_RESERVED) == 0) { 8307 /* No reservation exists return good status */ 8308 mtx_unlock(&lun->lun_lock); 8309 goto done; 8310 } 8311 /* 8312 * Is this nexus a reservation holder? 8313 */ 8314 if (lun->pr_res_idx != residx 8315 && lun->pr_res_idx != CTL_PR_ALL_REGISTRANTS) { 8316 /* 8317 * not a res holder return good status but 8318 * do nothing 8319 */ 8320 mtx_unlock(&lun->lun_lock); 8321 goto done; 8322 } 8323 8324 if (lun->res_type != type) { 8325 mtx_unlock(&lun->lun_lock); 8326 free(ctsio->kern_data_ptr, M_CTL); 8327 ctl_set_illegal_pr_release(ctsio); 8328 ctl_done((union ctl_io *)ctsio); 8329 return (CTL_RETVAL_COMPLETE); 8330 } 8331 8332 /* okay to release */ 8333 lun->flags &= ~CTL_LUN_PR_RESERVED; 8334 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8335 lun->res_type = 0; 8336 8337 /* 8338 * if this isn't an exclusive access 8339 * res generate UA for all other 8340 * registrants. 8341 */ 8342 if (type != SPR_TYPE_EX_AC 8343 && type != SPR_TYPE_WR_EX) { 8344 for (i = softc->init_min; i < softc->init_max; i++) { 8345 if (i == residx || ctl_get_prkey(lun, i) == 0) 8346 continue; 8347 ctl_est_ua(lun, i, CTL_UA_RES_RELEASE); 8348 } 8349 } 8350 mtx_unlock(&lun->lun_lock); 8351 8352 /* Send msg to other side */ 8353 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8354 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8355 persis_io.pr.pr_info.action = CTL_PR_RELEASE; 8356 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8357 sizeof(persis_io.pr), M_WAITOK); 8358 break; 8359 8360 case SPRO_CLEAR: 8361 /* send msg to other side */ 8362 8363 mtx_lock(&lun->lun_lock); 8364 lun->flags &= ~CTL_LUN_PR_RESERVED; 8365 lun->res_type = 0; 8366 lun->pr_key_count = 0; 8367 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8368 8369 ctl_clr_prkey(lun, residx); 8370 for (i = 0; i < CTL_MAX_INITIATORS; i++) 8371 if (ctl_get_prkey(lun, i) != 0) { 8372 ctl_clr_prkey(lun, i); 8373 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 8374 } 8375 lun->PRGeneration++; 8376 mtx_unlock(&lun->lun_lock); 8377 8378 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8379 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8380 persis_io.pr.pr_info.action = CTL_PR_CLEAR; 8381 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8382 sizeof(persis_io.pr), M_WAITOK); 8383 break; 8384 8385 case SPRO_PREEMPT: 8386 case SPRO_PRE_ABO: { 8387 int nretval; 8388 8389 nretval = ctl_pro_preempt(softc, lun, res_key, sa_res_key, type, 8390 residx, ctsio, cdb, param); 8391 if (nretval != 0) 8392 return (CTL_RETVAL_COMPLETE); 8393 break; 8394 } 8395 default: 8396 panic("Invalid PR type %x", cdb->action); 8397 } 8398 8399done: 8400 free(ctsio->kern_data_ptr, M_CTL); 8401 ctl_set_success(ctsio); 8402 ctl_done((union ctl_io *)ctsio); 8403 8404 return (retval); 8405} 8406 8407/* 8408 * This routine is for handling a message from the other SC pertaining to 8409 * persistent reserve out. All the error checking will have been done 8410 * so only perorming the action need be done here to keep the two 8411 * in sync. 8412 */ 8413static void 8414ctl_hndl_per_res_out_on_other_sc(union ctl_ha_msg *msg) 8415{ 8416 struct ctl_softc *softc = control_softc; 8417 struct ctl_lun *lun; 8418 int i; 8419 uint32_t residx, targ_lun; 8420 8421 targ_lun = msg->hdr.nexus.targ_mapped_lun; 8422 mtx_lock(&softc->ctl_lock); 8423 if ((targ_lun >= CTL_MAX_LUNS) || 8424 ((lun = softc->ctl_luns[targ_lun]) == NULL)) { 8425 mtx_unlock(&softc->ctl_lock); 8426 return; 8427 } 8428 mtx_lock(&lun->lun_lock); 8429 mtx_unlock(&softc->ctl_lock); 8430 if (lun->flags & CTL_LUN_DISABLED) { 8431 mtx_unlock(&lun->lun_lock); 8432 return; 8433 } 8434 residx = ctl_get_initindex(&msg->hdr.nexus); 8435 switch(msg->pr.pr_info.action) { 8436 case CTL_PR_REG_KEY: 8437 ctl_alloc_prkey(lun, msg->pr.pr_info.residx); 8438 if (ctl_get_prkey(lun, msg->pr.pr_info.residx) == 0) 8439 lun->pr_key_count++; 8440 ctl_set_prkey(lun, msg->pr.pr_info.residx, 8441 scsi_8btou64(msg->pr.pr_info.sa_res_key)); 8442 lun->PRGeneration++; 8443 break; 8444 8445 case CTL_PR_UNREG_KEY: 8446 ctl_clr_prkey(lun, msg->pr.pr_info.residx); 8447 lun->pr_key_count--; 8448 8449 /* XXX Need to see if the reservation has been released */ 8450 /* if so do we need to generate UA? */ 8451 if (msg->pr.pr_info.residx == lun->pr_res_idx) { 8452 lun->flags &= ~CTL_LUN_PR_RESERVED; 8453 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8454 8455 if ((lun->res_type == SPR_TYPE_WR_EX_RO 8456 || lun->res_type == SPR_TYPE_EX_AC_RO) 8457 && lun->pr_key_count) { 8458 /* 8459 * If the reservation is a registrants 8460 * only type we need to generate a UA 8461 * for other registered inits. The 8462 * sense code should be RESERVATIONS 8463 * RELEASED 8464 */ 8465 8466 for (i = softc->init_min; i < softc->init_max; i++) { 8467 if (ctl_get_prkey(lun, i) == 0) 8468 continue; 8469 8470 ctl_est_ua(lun, i, CTL_UA_RES_RELEASE); 8471 } 8472 } 8473 lun->res_type = 0; 8474 } else if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS) { 8475 if (lun->pr_key_count==0) { 8476 lun->flags &= ~CTL_LUN_PR_RESERVED; 8477 lun->res_type = 0; 8478 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8479 } 8480 } 8481 lun->PRGeneration++; 8482 break; 8483 8484 case CTL_PR_RESERVE: 8485 lun->flags |= CTL_LUN_PR_RESERVED; 8486 lun->res_type = msg->pr.pr_info.res_type; 8487 lun->pr_res_idx = msg->pr.pr_info.residx; 8488 8489 break; 8490 8491 case CTL_PR_RELEASE: 8492 /* 8493 * if this isn't an exclusive access res generate UA for all 8494 * other registrants. 8495 */ 8496 if (lun->res_type != SPR_TYPE_EX_AC 8497 && lun->res_type != SPR_TYPE_WR_EX) { 8498 for (i = softc->init_min; i < softc->init_max; i++) 8499 if (i == residx || ctl_get_prkey(lun, i) == 0) 8500 continue; 8501 ctl_est_ua(lun, i, CTL_UA_RES_RELEASE); 8502 } 8503 8504 lun->flags &= ~CTL_LUN_PR_RESERVED; 8505 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8506 lun->res_type = 0; 8507 break; 8508 8509 case CTL_PR_PREEMPT: 8510 ctl_pro_preempt_other(lun, msg); 8511 break; 8512 case CTL_PR_CLEAR: 8513 lun->flags &= ~CTL_LUN_PR_RESERVED; 8514 lun->res_type = 0; 8515 lun->pr_key_count = 0; 8516 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8517 8518 for (i=0; i < CTL_MAX_INITIATORS; i++) { 8519 if (ctl_get_prkey(lun, i) == 0) 8520 continue; 8521 ctl_clr_prkey(lun, i); 8522 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 8523 } 8524 lun->PRGeneration++; 8525 break; 8526 } 8527 8528 mtx_unlock(&lun->lun_lock); 8529} 8530 8531int 8532ctl_read_write(struct ctl_scsiio *ctsio) 8533{ 8534 struct ctl_lun *lun; 8535 struct ctl_lba_len_flags *lbalen; 8536 uint64_t lba; 8537 uint32_t num_blocks; 8538 int flags, retval; 8539 int isread; 8540 8541 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 8542 8543 CTL_DEBUG_PRINT(("ctl_read_write: command: %#x\n", ctsio->cdb[0])); 8544 8545 flags = 0; 8546 isread = ctsio->cdb[0] == READ_6 || ctsio->cdb[0] == READ_10 8547 || ctsio->cdb[0] == READ_12 || ctsio->cdb[0] == READ_16; 8548 switch (ctsio->cdb[0]) { 8549 case READ_6: 8550 case WRITE_6: { 8551 struct scsi_rw_6 *cdb; 8552 8553 cdb = (struct scsi_rw_6 *)ctsio->cdb; 8554 8555 lba = scsi_3btoul(cdb->addr); 8556 /* only 5 bits are valid in the most significant address byte */ 8557 lba &= 0x1fffff; 8558 num_blocks = cdb->length; 8559 /* 8560 * This is correct according to SBC-2. 8561 */ 8562 if (num_blocks == 0) 8563 num_blocks = 256; 8564 break; 8565 } 8566 case READ_10: 8567 case WRITE_10: { 8568 struct scsi_rw_10 *cdb; 8569 8570 cdb = (struct scsi_rw_10 *)ctsio->cdb; 8571 if (cdb->byte2 & SRW10_FUA) 8572 flags |= CTL_LLF_FUA; 8573 if (cdb->byte2 & SRW10_DPO) 8574 flags |= CTL_LLF_DPO; 8575 lba = scsi_4btoul(cdb->addr); 8576 num_blocks = scsi_2btoul(cdb->length); 8577 break; 8578 } 8579 case WRITE_VERIFY_10: { 8580 struct scsi_write_verify_10 *cdb; 8581 8582 cdb = (struct scsi_write_verify_10 *)ctsio->cdb; 8583 flags |= CTL_LLF_FUA; 8584 if (cdb->byte2 & SWV_DPO) 8585 flags |= CTL_LLF_DPO; 8586 lba = scsi_4btoul(cdb->addr); 8587 num_blocks = scsi_2btoul(cdb->length); 8588 break; 8589 } 8590 case READ_12: 8591 case WRITE_12: { 8592 struct scsi_rw_12 *cdb; 8593 8594 cdb = (struct scsi_rw_12 *)ctsio->cdb; 8595 if (cdb->byte2 & SRW12_FUA) 8596 flags |= CTL_LLF_FUA; 8597 if (cdb->byte2 & SRW12_DPO) 8598 flags |= CTL_LLF_DPO; 8599 lba = scsi_4btoul(cdb->addr); 8600 num_blocks = scsi_4btoul(cdb->length); 8601 break; 8602 } 8603 case WRITE_VERIFY_12: { 8604 struct scsi_write_verify_12 *cdb; 8605 8606 cdb = (struct scsi_write_verify_12 *)ctsio->cdb; 8607 flags |= CTL_LLF_FUA; 8608 if (cdb->byte2 & SWV_DPO) 8609 flags |= CTL_LLF_DPO; 8610 lba = scsi_4btoul(cdb->addr); 8611 num_blocks = scsi_4btoul(cdb->length); 8612 break; 8613 } 8614 case READ_16: 8615 case WRITE_16: { 8616 struct scsi_rw_16 *cdb; 8617 8618 cdb = (struct scsi_rw_16 *)ctsio->cdb; 8619 if (cdb->byte2 & SRW12_FUA) 8620 flags |= CTL_LLF_FUA; 8621 if (cdb->byte2 & SRW12_DPO) 8622 flags |= CTL_LLF_DPO; 8623 lba = scsi_8btou64(cdb->addr); 8624 num_blocks = scsi_4btoul(cdb->length); 8625 break; 8626 } 8627 case WRITE_ATOMIC_16: { 8628 struct scsi_write_atomic_16 *cdb; 8629 8630 if (lun->be_lun->atomicblock == 0) { 8631 ctl_set_invalid_opcode(ctsio); 8632 ctl_done((union ctl_io *)ctsio); 8633 return (CTL_RETVAL_COMPLETE); 8634 } 8635 8636 cdb = (struct scsi_write_atomic_16 *)ctsio->cdb; 8637 if (cdb->byte2 & SRW12_FUA) 8638 flags |= CTL_LLF_FUA; 8639 if (cdb->byte2 & SRW12_DPO) 8640 flags |= CTL_LLF_DPO; 8641 lba = scsi_8btou64(cdb->addr); 8642 num_blocks = scsi_2btoul(cdb->length); 8643 if (num_blocks > lun->be_lun->atomicblock) { 8644 ctl_set_invalid_field(ctsio, /*sks_valid*/ 1, 8645 /*command*/ 1, /*field*/ 12, /*bit_valid*/ 0, 8646 /*bit*/ 0); 8647 ctl_done((union ctl_io *)ctsio); 8648 return (CTL_RETVAL_COMPLETE); 8649 } 8650 break; 8651 } 8652 case WRITE_VERIFY_16: { 8653 struct scsi_write_verify_16 *cdb; 8654 8655 cdb = (struct scsi_write_verify_16 *)ctsio->cdb; 8656 flags |= CTL_LLF_FUA; 8657 if (cdb->byte2 & SWV_DPO) 8658 flags |= CTL_LLF_DPO; 8659 lba = scsi_8btou64(cdb->addr); 8660 num_blocks = scsi_4btoul(cdb->length); 8661 break; 8662 } 8663 default: 8664 /* 8665 * We got a command we don't support. This shouldn't 8666 * happen, commands should be filtered out above us. 8667 */ 8668 ctl_set_invalid_opcode(ctsio); 8669 ctl_done((union ctl_io *)ctsio); 8670 8671 return (CTL_RETVAL_COMPLETE); 8672 break; /* NOTREACHED */ 8673 } 8674 8675 /* 8676 * The first check is to make sure we're in bounds, the second 8677 * check is to catch wrap-around problems. If the lba + num blocks 8678 * is less than the lba, then we've wrapped around and the block 8679 * range is invalid anyway. 8680 */ 8681 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 8682 || ((lba + num_blocks) < lba)) { 8683 ctl_set_lba_out_of_range(ctsio); 8684 ctl_done((union ctl_io *)ctsio); 8685 return (CTL_RETVAL_COMPLETE); 8686 } 8687 8688 /* 8689 * According to SBC-3, a transfer length of 0 is not an error. 8690 * Note that this cannot happen with WRITE(6) or READ(6), since 0 8691 * translates to 256 blocks for those commands. 8692 */ 8693 if (num_blocks == 0) { 8694 ctl_set_success(ctsio); 8695 ctl_done((union ctl_io *)ctsio); 8696 return (CTL_RETVAL_COMPLETE); 8697 } 8698 8699 /* Set FUA and/or DPO if caches are disabled. */ 8700 if (isread) { 8701 if ((lun->mode_pages.caching_page[CTL_PAGE_CURRENT].flags1 & 8702 SCP_RCD) != 0) 8703 flags |= CTL_LLF_FUA | CTL_LLF_DPO; 8704 } else { 8705 if ((lun->mode_pages.caching_page[CTL_PAGE_CURRENT].flags1 & 8706 SCP_WCE) == 0) 8707 flags |= CTL_LLF_FUA; 8708 } 8709 8710 lbalen = (struct ctl_lba_len_flags *) 8711 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 8712 lbalen->lba = lba; 8713 lbalen->len = num_blocks; 8714 lbalen->flags = (isread ? CTL_LLF_READ : CTL_LLF_WRITE) | flags; 8715 8716 ctsio->kern_total_len = num_blocks * lun->be_lun->blocksize; 8717 ctsio->kern_rel_offset = 0; 8718 8719 CTL_DEBUG_PRINT(("ctl_read_write: calling data_submit()\n")); 8720 8721 retval = lun->backend->data_submit((union ctl_io *)ctsio); 8722 return (retval); 8723} 8724 8725static int 8726ctl_cnw_cont(union ctl_io *io) 8727{ 8728 struct ctl_scsiio *ctsio; 8729 struct ctl_lun *lun; 8730 struct ctl_lba_len_flags *lbalen; 8731 int retval; 8732 8733 ctsio = &io->scsiio; 8734 ctsio->io_hdr.status = CTL_STATUS_NONE; 8735 ctsio->io_hdr.flags &= ~CTL_FLAG_IO_CONT; 8736 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 8737 lbalen = (struct ctl_lba_len_flags *) 8738 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 8739 lbalen->flags &= ~CTL_LLF_COMPARE; 8740 lbalen->flags |= CTL_LLF_WRITE; 8741 8742 CTL_DEBUG_PRINT(("ctl_cnw_cont: calling data_submit()\n")); 8743 retval = lun->backend->data_submit((union ctl_io *)ctsio); 8744 return (retval); 8745} 8746 8747int 8748ctl_cnw(struct ctl_scsiio *ctsio) 8749{ 8750 struct ctl_lun *lun; 8751 struct ctl_lba_len_flags *lbalen; 8752 uint64_t lba; 8753 uint32_t num_blocks; 8754 int flags, retval; 8755 8756 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 8757 8758 CTL_DEBUG_PRINT(("ctl_cnw: command: %#x\n", ctsio->cdb[0])); 8759 8760 flags = 0; 8761 switch (ctsio->cdb[0]) { 8762 case COMPARE_AND_WRITE: { 8763 struct scsi_compare_and_write *cdb; 8764 8765 cdb = (struct scsi_compare_and_write *)ctsio->cdb; 8766 if (cdb->byte2 & SRW10_FUA) 8767 flags |= CTL_LLF_FUA; 8768 if (cdb->byte2 & SRW10_DPO) 8769 flags |= CTL_LLF_DPO; 8770 lba = scsi_8btou64(cdb->addr); 8771 num_blocks = cdb->length; 8772 break; 8773 } 8774 default: 8775 /* 8776 * We got a command we don't support. This shouldn't 8777 * happen, commands should be filtered out above us. 8778 */ 8779 ctl_set_invalid_opcode(ctsio); 8780 ctl_done((union ctl_io *)ctsio); 8781 8782 return (CTL_RETVAL_COMPLETE); 8783 break; /* NOTREACHED */ 8784 } 8785 8786 /* 8787 * The first check is to make sure we're in bounds, the second 8788 * check is to catch wrap-around problems. If the lba + num blocks 8789 * is less than the lba, then we've wrapped around and the block 8790 * range is invalid anyway. 8791 */ 8792 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 8793 || ((lba + num_blocks) < lba)) { 8794 ctl_set_lba_out_of_range(ctsio); 8795 ctl_done((union ctl_io *)ctsio); 8796 return (CTL_RETVAL_COMPLETE); 8797 } 8798 8799 /* 8800 * According to SBC-3, a transfer length of 0 is not an error. 8801 */ 8802 if (num_blocks == 0) { 8803 ctl_set_success(ctsio); 8804 ctl_done((union ctl_io *)ctsio); 8805 return (CTL_RETVAL_COMPLETE); 8806 } 8807 8808 /* Set FUA if write cache is disabled. */ 8809 if ((lun->mode_pages.caching_page[CTL_PAGE_CURRENT].flags1 & 8810 SCP_WCE) == 0) 8811 flags |= CTL_LLF_FUA; 8812 8813 ctsio->kern_total_len = 2 * num_blocks * lun->be_lun->blocksize; 8814 ctsio->kern_rel_offset = 0; 8815 8816 /* 8817 * Set the IO_CONT flag, so that if this I/O gets passed to 8818 * ctl_data_submit_done(), it'll get passed back to 8819 * ctl_ctl_cnw_cont() for further processing. 8820 */ 8821 ctsio->io_hdr.flags |= CTL_FLAG_IO_CONT; 8822 ctsio->io_cont = ctl_cnw_cont; 8823 8824 lbalen = (struct ctl_lba_len_flags *) 8825 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 8826 lbalen->lba = lba; 8827 lbalen->len = num_blocks; 8828 lbalen->flags = CTL_LLF_COMPARE | flags; 8829 8830 CTL_DEBUG_PRINT(("ctl_cnw: calling data_submit()\n")); 8831 retval = lun->backend->data_submit((union ctl_io *)ctsio); 8832 return (retval); 8833} 8834 8835int 8836ctl_verify(struct ctl_scsiio *ctsio) 8837{ 8838 struct ctl_lun *lun; 8839 struct ctl_lba_len_flags *lbalen; 8840 uint64_t lba; 8841 uint32_t num_blocks; 8842 int bytchk, flags; 8843 int retval; 8844 8845 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 8846 8847 CTL_DEBUG_PRINT(("ctl_verify: command: %#x\n", ctsio->cdb[0])); 8848 8849 bytchk = 0; 8850 flags = CTL_LLF_FUA; 8851 switch (ctsio->cdb[0]) { 8852 case VERIFY_10: { 8853 struct scsi_verify_10 *cdb; 8854 8855 cdb = (struct scsi_verify_10 *)ctsio->cdb; 8856 if (cdb->byte2 & SVFY_BYTCHK) 8857 bytchk = 1; 8858 if (cdb->byte2 & SVFY_DPO) 8859 flags |= CTL_LLF_DPO; 8860 lba = scsi_4btoul(cdb->addr); 8861 num_blocks = scsi_2btoul(cdb->length); 8862 break; 8863 } 8864 case VERIFY_12: { 8865 struct scsi_verify_12 *cdb; 8866 8867 cdb = (struct scsi_verify_12 *)ctsio->cdb; 8868 if (cdb->byte2 & SVFY_BYTCHK) 8869 bytchk = 1; 8870 if (cdb->byte2 & SVFY_DPO) 8871 flags |= CTL_LLF_DPO; 8872 lba = scsi_4btoul(cdb->addr); 8873 num_blocks = scsi_4btoul(cdb->length); 8874 break; 8875 } 8876 case VERIFY_16: { 8877 struct scsi_rw_16 *cdb; 8878 8879 cdb = (struct scsi_rw_16 *)ctsio->cdb; 8880 if (cdb->byte2 & SVFY_BYTCHK) 8881 bytchk = 1; 8882 if (cdb->byte2 & SVFY_DPO) 8883 flags |= CTL_LLF_DPO; 8884 lba = scsi_8btou64(cdb->addr); 8885 num_blocks = scsi_4btoul(cdb->length); 8886 break; 8887 } 8888 default: 8889 /* 8890 * We got a command we don't support. This shouldn't 8891 * happen, commands should be filtered out above us. 8892 */ 8893 ctl_set_invalid_opcode(ctsio); 8894 ctl_done((union ctl_io *)ctsio); 8895 return (CTL_RETVAL_COMPLETE); 8896 } 8897 8898 /* 8899 * The first check is to make sure we're in bounds, the second 8900 * check is to catch wrap-around problems. If the lba + num blocks 8901 * is less than the lba, then we've wrapped around and the block 8902 * range is invalid anyway. 8903 */ 8904 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 8905 || ((lba + num_blocks) < lba)) { 8906 ctl_set_lba_out_of_range(ctsio); 8907 ctl_done((union ctl_io *)ctsio); 8908 return (CTL_RETVAL_COMPLETE); 8909 } 8910 8911 /* 8912 * According to SBC-3, a transfer length of 0 is not an error. 8913 */ 8914 if (num_blocks == 0) { 8915 ctl_set_success(ctsio); 8916 ctl_done((union ctl_io *)ctsio); 8917 return (CTL_RETVAL_COMPLETE); 8918 } 8919 8920 lbalen = (struct ctl_lba_len_flags *) 8921 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 8922 lbalen->lba = lba; 8923 lbalen->len = num_blocks; 8924 if (bytchk) { 8925 lbalen->flags = CTL_LLF_COMPARE | flags; 8926 ctsio->kern_total_len = num_blocks * lun->be_lun->blocksize; 8927 } else { 8928 lbalen->flags = CTL_LLF_VERIFY | flags; 8929 ctsio->kern_total_len = 0; 8930 } 8931 ctsio->kern_rel_offset = 0; 8932 8933 CTL_DEBUG_PRINT(("ctl_verify: calling data_submit()\n")); 8934 retval = lun->backend->data_submit((union ctl_io *)ctsio); 8935 return (retval); 8936} 8937 8938int 8939ctl_report_luns(struct ctl_scsiio *ctsio) 8940{ 8941 struct ctl_softc *softc; 8942 struct scsi_report_luns *cdb; 8943 struct scsi_report_luns_data *lun_data; 8944 struct ctl_lun *lun, *request_lun; 8945 struct ctl_port *port; 8946 int num_luns, retval; 8947 uint32_t alloc_len, lun_datalen; 8948 int num_filled; 8949 uint32_t initidx, targ_lun_id, lun_id; 8950 8951 retval = CTL_RETVAL_COMPLETE; 8952 cdb = (struct scsi_report_luns *)ctsio->cdb; 8953 port = ctl_io_port(&ctsio->io_hdr); 8954 softc = port->ctl_softc; 8955 8956 CTL_DEBUG_PRINT(("ctl_report_luns\n")); 8957 8958 mtx_lock(&softc->ctl_lock); 8959 num_luns = 0; 8960 for (targ_lun_id = 0; targ_lun_id < CTL_MAX_LUNS; targ_lun_id++) { 8961 if (ctl_lun_map_from_port(port, targ_lun_id) < CTL_MAX_LUNS) 8962 num_luns++; 8963 } 8964 mtx_unlock(&softc->ctl_lock); 8965 8966 switch (cdb->select_report) { 8967 case RPL_REPORT_DEFAULT: 8968 case RPL_REPORT_ALL: 8969 case RPL_REPORT_NONSUBSID: 8970 break; 8971 case RPL_REPORT_WELLKNOWN: 8972 case RPL_REPORT_ADMIN: 8973 case RPL_REPORT_CONGLOM: 8974 num_luns = 0; 8975 break; 8976 default: 8977 ctl_set_invalid_field(ctsio, 8978 /*sks_valid*/ 1, 8979 /*command*/ 1, 8980 /*field*/ 2, 8981 /*bit_valid*/ 0, 8982 /*bit*/ 0); 8983 ctl_done((union ctl_io *)ctsio); 8984 return (retval); 8985 break; /* NOTREACHED */ 8986 } 8987 8988 alloc_len = scsi_4btoul(cdb->length); 8989 /* 8990 * The initiator has to allocate at least 16 bytes for this request, 8991 * so he can at least get the header and the first LUN. Otherwise 8992 * we reject the request (per SPC-3 rev 14, section 6.21). 8993 */ 8994 if (alloc_len < (sizeof(struct scsi_report_luns_data) + 8995 sizeof(struct scsi_report_luns_lundata))) { 8996 ctl_set_invalid_field(ctsio, 8997 /*sks_valid*/ 1, 8998 /*command*/ 1, 8999 /*field*/ 6, 9000 /*bit_valid*/ 0, 9001 /*bit*/ 0); 9002 ctl_done((union ctl_io *)ctsio); 9003 return (retval); 9004 } 9005 9006 request_lun = (struct ctl_lun *) 9007 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9008 9009 lun_datalen = sizeof(*lun_data) + 9010 (num_luns * sizeof(struct scsi_report_luns_lundata)); 9011 9012 ctsio->kern_data_ptr = malloc(lun_datalen, M_CTL, M_WAITOK | M_ZERO); 9013 lun_data = (struct scsi_report_luns_data *)ctsio->kern_data_ptr; 9014 ctsio->kern_sg_entries = 0; 9015 9016 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 9017 9018 mtx_lock(&softc->ctl_lock); 9019 for (targ_lun_id = 0, num_filled = 0; targ_lun_id < CTL_MAX_LUNS && num_filled < num_luns; targ_lun_id++) { 9020 lun_id = ctl_lun_map_from_port(port, targ_lun_id); 9021 if (lun_id >= CTL_MAX_LUNS) 9022 continue; 9023 lun = softc->ctl_luns[lun_id]; 9024 if (lun == NULL) 9025 continue; 9026 9027 if (targ_lun_id <= 0xff) { 9028 /* 9029 * Peripheral addressing method, bus number 0. 9030 */ 9031 lun_data->luns[num_filled].lundata[0] = 9032 RPL_LUNDATA_ATYP_PERIPH; 9033 lun_data->luns[num_filled].lundata[1] = targ_lun_id; 9034 num_filled++; 9035 } else if (targ_lun_id <= 0x3fff) { 9036 /* 9037 * Flat addressing method. 9038 */ 9039 lun_data->luns[num_filled].lundata[0] = 9040 RPL_LUNDATA_ATYP_FLAT | (targ_lun_id >> 8); 9041 lun_data->luns[num_filled].lundata[1] = 9042 (targ_lun_id & 0xff); 9043 num_filled++; 9044 } else if (targ_lun_id <= 0xffffff) { 9045 /* 9046 * Extended flat addressing method. 9047 */ 9048 lun_data->luns[num_filled].lundata[0] = 9049 RPL_LUNDATA_ATYP_EXTLUN | 0x12; 9050 scsi_ulto3b(targ_lun_id, 9051 &lun_data->luns[num_filled].lundata[1]); 9052 num_filled++; 9053 } else { 9054 printf("ctl_report_luns: bogus LUN number %jd, " 9055 "skipping\n", (intmax_t)targ_lun_id); 9056 } 9057 /* 9058 * According to SPC-3, rev 14 section 6.21: 9059 * 9060 * "The execution of a REPORT LUNS command to any valid and 9061 * installed logical unit shall clear the REPORTED LUNS DATA 9062 * HAS CHANGED unit attention condition for all logical 9063 * units of that target with respect to the requesting 9064 * initiator. A valid and installed logical unit is one 9065 * having a PERIPHERAL QUALIFIER of 000b in the standard 9066 * INQUIRY data (see 6.4.2)." 9067 * 9068 * If request_lun is NULL, the LUN this report luns command 9069 * was issued to is either disabled or doesn't exist. In that 9070 * case, we shouldn't clear any pending lun change unit 9071 * attention. 9072 */ 9073 if (request_lun != NULL) { 9074 mtx_lock(&lun->lun_lock); 9075 ctl_clr_ua(lun, initidx, CTL_UA_LUN_CHANGE); 9076 mtx_unlock(&lun->lun_lock); 9077 } 9078 } 9079 mtx_unlock(&softc->ctl_lock); 9080 9081 /* 9082 * It's quite possible that we've returned fewer LUNs than we allocated 9083 * space for. Trim it. 9084 */ 9085 lun_datalen = sizeof(*lun_data) + 9086 (num_filled * sizeof(struct scsi_report_luns_lundata)); 9087 9088 if (lun_datalen < alloc_len) { 9089 ctsio->residual = alloc_len - lun_datalen; 9090 ctsio->kern_data_len = lun_datalen; 9091 ctsio->kern_total_len = lun_datalen; 9092 } else { 9093 ctsio->residual = 0; 9094 ctsio->kern_data_len = alloc_len; 9095 ctsio->kern_total_len = alloc_len; 9096 } 9097 ctsio->kern_data_resid = 0; 9098 ctsio->kern_rel_offset = 0; 9099 ctsio->kern_sg_entries = 0; 9100 9101 /* 9102 * We set this to the actual data length, regardless of how much 9103 * space we actually have to return results. If the user looks at 9104 * this value, he'll know whether or not he allocated enough space 9105 * and reissue the command if necessary. We don't support well 9106 * known logical units, so if the user asks for that, return none. 9107 */ 9108 scsi_ulto4b(lun_datalen - 8, lun_data->length); 9109 9110 /* 9111 * We can only return SCSI_STATUS_CHECK_COND when we can't satisfy 9112 * this request. 9113 */ 9114 ctl_set_success(ctsio); 9115 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9116 ctsio->be_move_done = ctl_config_move_done; 9117 ctl_datamove((union ctl_io *)ctsio); 9118 return (retval); 9119} 9120 9121int 9122ctl_request_sense(struct ctl_scsiio *ctsio) 9123{ 9124 struct scsi_request_sense *cdb; 9125 struct scsi_sense_data *sense_ptr; 9126 struct ctl_softc *ctl_softc; 9127 struct ctl_lun *lun; 9128 uint32_t initidx; 9129 int have_error; 9130 scsi_sense_data_type sense_format; 9131 ctl_ua_type ua_type; 9132 9133 cdb = (struct scsi_request_sense *)ctsio->cdb; 9134 9135 ctl_softc = control_softc; 9136 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9137 9138 CTL_DEBUG_PRINT(("ctl_request_sense\n")); 9139 9140 /* 9141 * Determine which sense format the user wants. 9142 */ 9143 if (cdb->byte2 & SRS_DESC) 9144 sense_format = SSD_TYPE_DESC; 9145 else 9146 sense_format = SSD_TYPE_FIXED; 9147 9148 ctsio->kern_data_ptr = malloc(sizeof(*sense_ptr), M_CTL, M_WAITOK); 9149 sense_ptr = (struct scsi_sense_data *)ctsio->kern_data_ptr; 9150 ctsio->kern_sg_entries = 0; 9151 9152 /* 9153 * struct scsi_sense_data, which is currently set to 256 bytes, is 9154 * larger than the largest allowed value for the length field in the 9155 * REQUEST SENSE CDB, which is 252 bytes as of SPC-4. 9156 */ 9157 ctsio->residual = 0; 9158 ctsio->kern_data_len = cdb->length; 9159 ctsio->kern_total_len = cdb->length; 9160 9161 ctsio->kern_data_resid = 0; 9162 ctsio->kern_rel_offset = 0; 9163 ctsio->kern_sg_entries = 0; 9164 9165 /* 9166 * If we don't have a LUN, we don't have any pending sense. 9167 */ 9168 if (lun == NULL) 9169 goto no_sense; 9170 9171 have_error = 0; 9172 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 9173 /* 9174 * Check for pending sense, and then for pending unit attentions. 9175 * Pending sense gets returned first, then pending unit attentions. 9176 */ 9177 mtx_lock(&lun->lun_lock); 9178#ifdef CTL_WITH_CA 9179 if (ctl_is_set(lun->have_ca, initidx)) { 9180 scsi_sense_data_type stored_format; 9181 9182 /* 9183 * Check to see which sense format was used for the stored 9184 * sense data. 9185 */ 9186 stored_format = scsi_sense_type(&lun->pending_sense[initidx]); 9187 9188 /* 9189 * If the user requested a different sense format than the 9190 * one we stored, then we need to convert it to the other 9191 * format. If we're going from descriptor to fixed format 9192 * sense data, we may lose things in translation, depending 9193 * on what options were used. 9194 * 9195 * If the stored format is SSD_TYPE_NONE (i.e. invalid), 9196 * for some reason we'll just copy it out as-is. 9197 */ 9198 if ((stored_format == SSD_TYPE_FIXED) 9199 && (sense_format == SSD_TYPE_DESC)) 9200 ctl_sense_to_desc((struct scsi_sense_data_fixed *) 9201 &lun->pending_sense[initidx], 9202 (struct scsi_sense_data_desc *)sense_ptr); 9203 else if ((stored_format == SSD_TYPE_DESC) 9204 && (sense_format == SSD_TYPE_FIXED)) 9205 ctl_sense_to_fixed((struct scsi_sense_data_desc *) 9206 &lun->pending_sense[initidx], 9207 (struct scsi_sense_data_fixed *)sense_ptr); 9208 else 9209 memcpy(sense_ptr, &lun->pending_sense[initidx], 9210 MIN(sizeof(*sense_ptr), 9211 sizeof(lun->pending_sense[initidx]))); 9212 9213 ctl_clear_mask(lun->have_ca, initidx); 9214 have_error = 1; 9215 } else 9216#endif 9217 { 9218 ua_type = ctl_build_ua(lun, initidx, sense_ptr, sense_format); 9219 if (ua_type != CTL_UA_NONE) 9220 have_error = 1; 9221 if (ua_type == CTL_UA_LUN_CHANGE) { 9222 mtx_unlock(&lun->lun_lock); 9223 mtx_lock(&ctl_softc->ctl_lock); 9224 ctl_clr_ua_allluns(ctl_softc, initidx, ua_type); 9225 mtx_unlock(&ctl_softc->ctl_lock); 9226 mtx_lock(&lun->lun_lock); 9227 } 9228 9229 } 9230 mtx_unlock(&lun->lun_lock); 9231 9232 /* 9233 * We already have a pending error, return it. 9234 */ 9235 if (have_error != 0) { 9236 /* 9237 * We report the SCSI status as OK, since the status of the 9238 * request sense command itself is OK. 9239 * We report 0 for the sense length, because we aren't doing 9240 * autosense in this case. We're reporting sense as 9241 * parameter data. 9242 */ 9243 ctl_set_success(ctsio); 9244 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9245 ctsio->be_move_done = ctl_config_move_done; 9246 ctl_datamove((union ctl_io *)ctsio); 9247 return (CTL_RETVAL_COMPLETE); 9248 } 9249 9250no_sense: 9251 9252 /* 9253 * No sense information to report, so we report that everything is 9254 * okay. 9255 */ 9256 ctl_set_sense_data(sense_ptr, 9257 lun, 9258 sense_format, 9259 /*current_error*/ 1, 9260 /*sense_key*/ SSD_KEY_NO_SENSE, 9261 /*asc*/ 0x00, 9262 /*ascq*/ 0x00, 9263 SSD_ELEM_NONE); 9264 9265 /* 9266 * We report 0 for the sense length, because we aren't doing 9267 * autosense in this case. We're reporting sense as parameter data. 9268 */ 9269 ctl_set_success(ctsio); 9270 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9271 ctsio->be_move_done = ctl_config_move_done; 9272 ctl_datamove((union ctl_io *)ctsio); 9273 return (CTL_RETVAL_COMPLETE); 9274} 9275 9276int 9277ctl_tur(struct ctl_scsiio *ctsio) 9278{ 9279 9280 CTL_DEBUG_PRINT(("ctl_tur\n")); 9281 9282 ctl_set_success(ctsio); 9283 ctl_done((union ctl_io *)ctsio); 9284 9285 return (CTL_RETVAL_COMPLETE); 9286} 9287 9288/* 9289 * SCSI VPD page 0x00, the Supported VPD Pages page. 9290 */ 9291static int 9292ctl_inquiry_evpd_supported(struct ctl_scsiio *ctsio, int alloc_len) 9293{ 9294 struct scsi_vpd_supported_pages *pages; 9295 int sup_page_size; 9296 struct ctl_lun *lun; 9297 int p; 9298 9299 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9300 9301 sup_page_size = sizeof(struct scsi_vpd_supported_pages) * 9302 SCSI_EVPD_NUM_SUPPORTED_PAGES; 9303 ctsio->kern_data_ptr = malloc(sup_page_size, M_CTL, M_WAITOK | M_ZERO); 9304 pages = (struct scsi_vpd_supported_pages *)ctsio->kern_data_ptr; 9305 ctsio->kern_sg_entries = 0; 9306 9307 if (sup_page_size < alloc_len) { 9308 ctsio->residual = alloc_len - sup_page_size; 9309 ctsio->kern_data_len = sup_page_size; 9310 ctsio->kern_total_len = sup_page_size; 9311 } else { 9312 ctsio->residual = 0; 9313 ctsio->kern_data_len = alloc_len; 9314 ctsio->kern_total_len = alloc_len; 9315 } 9316 ctsio->kern_data_resid = 0; 9317 ctsio->kern_rel_offset = 0; 9318 ctsio->kern_sg_entries = 0; 9319 9320 /* 9321 * The control device is always connected. The disk device, on the 9322 * other hand, may not be online all the time. Need to change this 9323 * to figure out whether the disk device is actually online or not. 9324 */ 9325 if (lun != NULL) 9326 pages->device = (SID_QUAL_LU_CONNECTED << 5) | 9327 lun->be_lun->lun_type; 9328 else 9329 pages->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9330 9331 p = 0; 9332 /* Supported VPD pages */ 9333 pages->page_list[p++] = SVPD_SUPPORTED_PAGES; 9334 /* Serial Number */ 9335 pages->page_list[p++] = SVPD_UNIT_SERIAL_NUMBER; 9336 /* Device Identification */ 9337 pages->page_list[p++] = SVPD_DEVICE_ID; 9338 /* Extended INQUIRY Data */ 9339 pages->page_list[p++] = SVPD_EXTENDED_INQUIRY_DATA; 9340 /* Mode Page Policy */ 9341 pages->page_list[p++] = SVPD_MODE_PAGE_POLICY; 9342 /* SCSI Ports */ 9343 pages->page_list[p++] = SVPD_SCSI_PORTS; 9344 /* Third-party Copy */ 9345 pages->page_list[p++] = SVPD_SCSI_TPC; 9346 if (lun != NULL && lun->be_lun->lun_type == T_DIRECT) { 9347 /* Block limits */ 9348 pages->page_list[p++] = SVPD_BLOCK_LIMITS; 9349 /* Block Device Characteristics */ 9350 pages->page_list[p++] = SVPD_BDC; 9351 /* Logical Block Provisioning */ 9352 pages->page_list[p++] = SVPD_LBP; 9353 } 9354 pages->length = p; 9355 9356 ctl_set_success(ctsio); 9357 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9358 ctsio->be_move_done = ctl_config_move_done; 9359 ctl_datamove((union ctl_io *)ctsio); 9360 return (CTL_RETVAL_COMPLETE); 9361} 9362 9363/* 9364 * SCSI VPD page 0x80, the Unit Serial Number page. 9365 */ 9366static int 9367ctl_inquiry_evpd_serial(struct ctl_scsiio *ctsio, int alloc_len) 9368{ 9369 struct scsi_vpd_unit_serial_number *sn_ptr; 9370 struct ctl_lun *lun; 9371 int data_len; 9372 9373 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9374 9375 data_len = 4 + CTL_SN_LEN; 9376 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9377 sn_ptr = (struct scsi_vpd_unit_serial_number *)ctsio->kern_data_ptr; 9378 if (data_len < alloc_len) { 9379 ctsio->residual = alloc_len - data_len; 9380 ctsio->kern_data_len = data_len; 9381 ctsio->kern_total_len = data_len; 9382 } else { 9383 ctsio->residual = 0; 9384 ctsio->kern_data_len = alloc_len; 9385 ctsio->kern_total_len = alloc_len; 9386 } 9387 ctsio->kern_data_resid = 0; 9388 ctsio->kern_rel_offset = 0; 9389 ctsio->kern_sg_entries = 0; 9390 9391 /* 9392 * The control device is always connected. The disk device, on the 9393 * other hand, may not be online all the time. Need to change this 9394 * to figure out whether the disk device is actually online or not. 9395 */ 9396 if (lun != NULL) 9397 sn_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9398 lun->be_lun->lun_type; 9399 else 9400 sn_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9401 9402 sn_ptr->page_code = SVPD_UNIT_SERIAL_NUMBER; 9403 sn_ptr->length = CTL_SN_LEN; 9404 /* 9405 * If we don't have a LUN, we just leave the serial number as 9406 * all spaces. 9407 */ 9408 if (lun != NULL) { 9409 strncpy((char *)sn_ptr->serial_num, 9410 (char *)lun->be_lun->serial_num, CTL_SN_LEN); 9411 } else 9412 memset(sn_ptr->serial_num, 0x20, CTL_SN_LEN); 9413 9414 ctl_set_success(ctsio); 9415 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9416 ctsio->be_move_done = ctl_config_move_done; 9417 ctl_datamove((union ctl_io *)ctsio); 9418 return (CTL_RETVAL_COMPLETE); 9419} 9420 9421 9422/* 9423 * SCSI VPD page 0x86, the Extended INQUIRY Data page. 9424 */ 9425static int 9426ctl_inquiry_evpd_eid(struct ctl_scsiio *ctsio, int alloc_len) 9427{ 9428 struct scsi_vpd_extended_inquiry_data *eid_ptr; 9429 struct ctl_lun *lun; 9430 int data_len; 9431 9432 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9433 9434 data_len = sizeof(struct scsi_vpd_extended_inquiry_data); 9435 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9436 eid_ptr = (struct scsi_vpd_extended_inquiry_data *)ctsio->kern_data_ptr; 9437 ctsio->kern_sg_entries = 0; 9438 9439 if (data_len < alloc_len) { 9440 ctsio->residual = alloc_len - data_len; 9441 ctsio->kern_data_len = data_len; 9442 ctsio->kern_total_len = data_len; 9443 } else { 9444 ctsio->residual = 0; 9445 ctsio->kern_data_len = alloc_len; 9446 ctsio->kern_total_len = alloc_len; 9447 } 9448 ctsio->kern_data_resid = 0; 9449 ctsio->kern_rel_offset = 0; 9450 ctsio->kern_sg_entries = 0; 9451 9452 /* 9453 * The control device is always connected. The disk device, on the 9454 * other hand, may not be online all the time. 9455 */ 9456 if (lun != NULL) 9457 eid_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9458 lun->be_lun->lun_type; 9459 else 9460 eid_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9461 eid_ptr->page_code = SVPD_EXTENDED_INQUIRY_DATA; 9462 scsi_ulto2b(data_len - 4, eid_ptr->page_length); 9463 /* 9464 * We support head of queue, ordered and simple tags. 9465 */ 9466 eid_ptr->flags2 = SVPD_EID_HEADSUP | SVPD_EID_ORDSUP | SVPD_EID_SIMPSUP; 9467 /* 9468 * Volatile cache supported. 9469 */ 9470 eid_ptr->flags3 = SVPD_EID_V_SUP; 9471 9472 /* 9473 * This means that we clear the REPORTED LUNS DATA HAS CHANGED unit 9474 * attention for a particular IT nexus on all LUNs once we report 9475 * it to that nexus once. This bit is required as of SPC-4. 9476 */ 9477 eid_ptr->flags4 = SVPD_EID_LUICLT; 9478 9479 /* 9480 * XXX KDM in order to correctly answer this, we would need 9481 * information from the SIM to determine how much sense data it 9482 * can send. So this would really be a path inquiry field, most 9483 * likely. This can be set to a maximum of 252 according to SPC-4, 9484 * but the hardware may or may not be able to support that much. 9485 * 0 just means that the maximum sense data length is not reported. 9486 */ 9487 eid_ptr->max_sense_length = 0; 9488 9489 ctl_set_success(ctsio); 9490 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9491 ctsio->be_move_done = ctl_config_move_done; 9492 ctl_datamove((union ctl_io *)ctsio); 9493 return (CTL_RETVAL_COMPLETE); 9494} 9495 9496static int 9497ctl_inquiry_evpd_mpp(struct ctl_scsiio *ctsio, int alloc_len) 9498{ 9499 struct scsi_vpd_mode_page_policy *mpp_ptr; 9500 struct ctl_lun *lun; 9501 int data_len; 9502 9503 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9504 9505 data_len = sizeof(struct scsi_vpd_mode_page_policy) + 9506 sizeof(struct scsi_vpd_mode_page_policy_descr); 9507 9508 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9509 mpp_ptr = (struct scsi_vpd_mode_page_policy *)ctsio->kern_data_ptr; 9510 ctsio->kern_sg_entries = 0; 9511 9512 if (data_len < alloc_len) { 9513 ctsio->residual = alloc_len - data_len; 9514 ctsio->kern_data_len = data_len; 9515 ctsio->kern_total_len = data_len; 9516 } else { 9517 ctsio->residual = 0; 9518 ctsio->kern_data_len = alloc_len; 9519 ctsio->kern_total_len = alloc_len; 9520 } 9521 ctsio->kern_data_resid = 0; 9522 ctsio->kern_rel_offset = 0; 9523 ctsio->kern_sg_entries = 0; 9524 9525 /* 9526 * The control device is always connected. The disk device, on the 9527 * other hand, may not be online all the time. 9528 */ 9529 if (lun != NULL) 9530 mpp_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9531 lun->be_lun->lun_type; 9532 else 9533 mpp_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9534 mpp_ptr->page_code = SVPD_MODE_PAGE_POLICY; 9535 scsi_ulto2b(data_len - 4, mpp_ptr->page_length); 9536 mpp_ptr->descr[0].page_code = 0x3f; 9537 mpp_ptr->descr[0].subpage_code = 0xff; 9538 mpp_ptr->descr[0].policy = SVPD_MPP_SHARED; 9539 9540 ctl_set_success(ctsio); 9541 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9542 ctsio->be_move_done = ctl_config_move_done; 9543 ctl_datamove((union ctl_io *)ctsio); 9544 return (CTL_RETVAL_COMPLETE); 9545} 9546 9547/* 9548 * SCSI VPD page 0x83, the Device Identification page. 9549 */ 9550static int 9551ctl_inquiry_evpd_devid(struct ctl_scsiio *ctsio, int alloc_len) 9552{ 9553 struct scsi_vpd_device_id *devid_ptr; 9554 struct scsi_vpd_id_descriptor *desc; 9555 struct ctl_softc *softc; 9556 struct ctl_lun *lun; 9557 struct ctl_port *port; 9558 int data_len; 9559 uint8_t proto; 9560 9561 softc = control_softc; 9562 9563 port = ctl_io_port(&ctsio->io_hdr); 9564 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9565 9566 data_len = sizeof(struct scsi_vpd_device_id) + 9567 sizeof(struct scsi_vpd_id_descriptor) + 9568 sizeof(struct scsi_vpd_id_rel_trgt_port_id) + 9569 sizeof(struct scsi_vpd_id_descriptor) + 9570 sizeof(struct scsi_vpd_id_trgt_port_grp_id); 9571 if (lun && lun->lun_devid) 9572 data_len += lun->lun_devid->len; 9573 if (port && port->port_devid) 9574 data_len += port->port_devid->len; 9575 if (port && port->target_devid) 9576 data_len += port->target_devid->len; 9577 9578 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9579 devid_ptr = (struct scsi_vpd_device_id *)ctsio->kern_data_ptr; 9580 ctsio->kern_sg_entries = 0; 9581 9582 if (data_len < alloc_len) { 9583 ctsio->residual = alloc_len - data_len; 9584 ctsio->kern_data_len = data_len; 9585 ctsio->kern_total_len = data_len; 9586 } else { 9587 ctsio->residual = 0; 9588 ctsio->kern_data_len = alloc_len; 9589 ctsio->kern_total_len = alloc_len; 9590 } 9591 ctsio->kern_data_resid = 0; 9592 ctsio->kern_rel_offset = 0; 9593 ctsio->kern_sg_entries = 0; 9594 9595 /* 9596 * The control device is always connected. The disk device, on the 9597 * other hand, may not be online all the time. 9598 */ 9599 if (lun != NULL) 9600 devid_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9601 lun->be_lun->lun_type; 9602 else 9603 devid_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9604 devid_ptr->page_code = SVPD_DEVICE_ID; 9605 scsi_ulto2b(data_len - 4, devid_ptr->length); 9606 9607 if (port && port->port_type == CTL_PORT_FC) 9608 proto = SCSI_PROTO_FC << 4; 9609 else if (port && port->port_type == CTL_PORT_ISCSI) 9610 proto = SCSI_PROTO_ISCSI << 4; 9611 else 9612 proto = SCSI_PROTO_SPI << 4; 9613 desc = (struct scsi_vpd_id_descriptor *)devid_ptr->desc_list; 9614 9615 /* 9616 * We're using a LUN association here. i.e., this device ID is a 9617 * per-LUN identifier. 9618 */ 9619 if (lun && lun->lun_devid) { 9620 memcpy(desc, lun->lun_devid->data, lun->lun_devid->len); 9621 desc = (struct scsi_vpd_id_descriptor *)((uint8_t *)desc + 9622 lun->lun_devid->len); 9623 } 9624 9625 /* 9626 * This is for the WWPN which is a port association. 9627 */ 9628 if (port && port->port_devid) { 9629 memcpy(desc, port->port_devid->data, port->port_devid->len); 9630 desc = (struct scsi_vpd_id_descriptor *)((uint8_t *)desc + 9631 port->port_devid->len); 9632 } 9633 9634 /* 9635 * This is for the Relative Target Port(type 4h) identifier 9636 */ 9637 desc->proto_codeset = proto | SVPD_ID_CODESET_BINARY; 9638 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_PORT | 9639 SVPD_ID_TYPE_RELTARG; 9640 desc->length = 4; 9641 scsi_ulto2b(ctsio->io_hdr.nexus.targ_port, &desc->identifier[2]); 9642 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 9643 sizeof(struct scsi_vpd_id_rel_trgt_port_id)); 9644 9645 /* 9646 * This is for the Target Port Group(type 5h) identifier 9647 */ 9648 desc->proto_codeset = proto | SVPD_ID_CODESET_BINARY; 9649 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_PORT | 9650 SVPD_ID_TYPE_TPORTGRP; 9651 desc->length = 4; 9652 scsi_ulto2b(ctsio->io_hdr.nexus.targ_port / softc->port_cnt + 1, 9653 &desc->identifier[2]); 9654 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 9655 sizeof(struct scsi_vpd_id_trgt_port_grp_id)); 9656 9657 /* 9658 * This is for the Target identifier 9659 */ 9660 if (port && port->target_devid) { 9661 memcpy(desc, port->target_devid->data, port->target_devid->len); 9662 } 9663 9664 ctl_set_success(ctsio); 9665 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9666 ctsio->be_move_done = ctl_config_move_done; 9667 ctl_datamove((union ctl_io *)ctsio); 9668 return (CTL_RETVAL_COMPLETE); 9669} 9670 9671static int 9672ctl_inquiry_evpd_scsi_ports(struct ctl_scsiio *ctsio, int alloc_len) 9673{ 9674 struct ctl_softc *softc = control_softc; 9675 struct scsi_vpd_scsi_ports *sp; 9676 struct scsi_vpd_port_designation *pd; 9677 struct scsi_vpd_port_designation_cont *pdc; 9678 struct ctl_lun *lun; 9679 struct ctl_port *port; 9680 int data_len, num_target_ports, iid_len, id_len; 9681 9682 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9683 9684 num_target_ports = 0; 9685 iid_len = 0; 9686 id_len = 0; 9687 mtx_lock(&softc->ctl_lock); 9688 STAILQ_FOREACH(port, &softc->port_list, links) { 9689 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 9690 continue; 9691 if (lun != NULL && 9692 ctl_lun_map_to_port(port, lun->lun) >= CTL_MAX_LUNS) 9693 continue; 9694 num_target_ports++; 9695 if (port->init_devid) 9696 iid_len += port->init_devid->len; 9697 if (port->port_devid) 9698 id_len += port->port_devid->len; 9699 } 9700 mtx_unlock(&softc->ctl_lock); 9701 9702 data_len = sizeof(struct scsi_vpd_scsi_ports) + 9703 num_target_ports * (sizeof(struct scsi_vpd_port_designation) + 9704 sizeof(struct scsi_vpd_port_designation_cont)) + iid_len + id_len; 9705 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9706 sp = (struct scsi_vpd_scsi_ports *)ctsio->kern_data_ptr; 9707 ctsio->kern_sg_entries = 0; 9708 9709 if (data_len < alloc_len) { 9710 ctsio->residual = alloc_len - data_len; 9711 ctsio->kern_data_len = data_len; 9712 ctsio->kern_total_len = data_len; 9713 } else { 9714 ctsio->residual = 0; 9715 ctsio->kern_data_len = alloc_len; 9716 ctsio->kern_total_len = alloc_len; 9717 } 9718 ctsio->kern_data_resid = 0; 9719 ctsio->kern_rel_offset = 0; 9720 ctsio->kern_sg_entries = 0; 9721 9722 /* 9723 * The control device is always connected. The disk device, on the 9724 * other hand, may not be online all the time. Need to change this 9725 * to figure out whether the disk device is actually online or not. 9726 */ 9727 if (lun != NULL) 9728 sp->device = (SID_QUAL_LU_CONNECTED << 5) | 9729 lun->be_lun->lun_type; 9730 else 9731 sp->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9732 9733 sp->page_code = SVPD_SCSI_PORTS; 9734 scsi_ulto2b(data_len - sizeof(struct scsi_vpd_scsi_ports), 9735 sp->page_length); 9736 pd = &sp->design[0]; 9737 9738 mtx_lock(&softc->ctl_lock); 9739 STAILQ_FOREACH(port, &softc->port_list, links) { 9740 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 9741 continue; 9742 if (lun != NULL && 9743 ctl_lun_map_to_port(port, lun->lun) >= CTL_MAX_LUNS) 9744 continue; 9745 scsi_ulto2b(port->targ_port, pd->relative_port_id); 9746 if (port->init_devid) { 9747 iid_len = port->init_devid->len; 9748 memcpy(pd->initiator_transportid, 9749 port->init_devid->data, port->init_devid->len); 9750 } else 9751 iid_len = 0; 9752 scsi_ulto2b(iid_len, pd->initiator_transportid_length); 9753 pdc = (struct scsi_vpd_port_designation_cont *) 9754 (&pd->initiator_transportid[iid_len]); 9755 if (port->port_devid) { 9756 id_len = port->port_devid->len; 9757 memcpy(pdc->target_port_descriptors, 9758 port->port_devid->data, port->port_devid->len); 9759 } else 9760 id_len = 0; 9761 scsi_ulto2b(id_len, pdc->target_port_descriptors_length); 9762 pd = (struct scsi_vpd_port_designation *) 9763 ((uint8_t *)pdc->target_port_descriptors + id_len); 9764 } 9765 mtx_unlock(&softc->ctl_lock); 9766 9767 ctl_set_success(ctsio); 9768 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9769 ctsio->be_move_done = ctl_config_move_done; 9770 ctl_datamove((union ctl_io *)ctsio); 9771 return (CTL_RETVAL_COMPLETE); 9772} 9773 9774static int 9775ctl_inquiry_evpd_block_limits(struct ctl_scsiio *ctsio, int alloc_len) 9776{ 9777 struct scsi_vpd_block_limits *bl_ptr; 9778 struct ctl_lun *lun; 9779 9780 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9781 9782 ctsio->kern_data_ptr = malloc(sizeof(*bl_ptr), M_CTL, M_WAITOK | M_ZERO); 9783 bl_ptr = (struct scsi_vpd_block_limits *)ctsio->kern_data_ptr; 9784 ctsio->kern_sg_entries = 0; 9785 9786 if (sizeof(*bl_ptr) < alloc_len) { 9787 ctsio->residual = alloc_len - sizeof(*bl_ptr); 9788 ctsio->kern_data_len = sizeof(*bl_ptr); 9789 ctsio->kern_total_len = sizeof(*bl_ptr); 9790 } else { 9791 ctsio->residual = 0; 9792 ctsio->kern_data_len = alloc_len; 9793 ctsio->kern_total_len = alloc_len; 9794 } 9795 ctsio->kern_data_resid = 0; 9796 ctsio->kern_rel_offset = 0; 9797 ctsio->kern_sg_entries = 0; 9798 9799 /* 9800 * The control device is always connected. The disk device, on the 9801 * other hand, may not be online all the time. Need to change this 9802 * to figure out whether the disk device is actually online or not. 9803 */ 9804 if (lun != NULL) 9805 bl_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9806 lun->be_lun->lun_type; 9807 else 9808 bl_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9809 9810 bl_ptr->page_code = SVPD_BLOCK_LIMITS; 9811 scsi_ulto2b(sizeof(*bl_ptr) - 4, bl_ptr->page_length); 9812 bl_ptr->max_cmp_write_len = 0xff; 9813 scsi_ulto4b(0xffffffff, bl_ptr->max_txfer_len); 9814 if (lun != NULL) { 9815 scsi_ulto4b(lun->be_lun->opttxferlen, bl_ptr->opt_txfer_len); 9816 if (lun->be_lun->flags & CTL_LUN_FLAG_UNMAP) { 9817 scsi_ulto4b(0xffffffff, bl_ptr->max_unmap_lba_cnt); 9818 scsi_ulto4b(0xffffffff, bl_ptr->max_unmap_blk_cnt); 9819 if (lun->be_lun->ublockexp != 0) { 9820 scsi_ulto4b((1 << lun->be_lun->ublockexp), 9821 bl_ptr->opt_unmap_grain); 9822 scsi_ulto4b(0x80000000 | lun->be_lun->ublockoff, 9823 bl_ptr->unmap_grain_align); 9824 } 9825 } 9826 scsi_ulto4b(lun->be_lun->atomicblock, 9827 bl_ptr->max_atomic_transfer_length); 9828 scsi_ulto4b(0, bl_ptr->atomic_alignment); 9829 scsi_ulto4b(0, bl_ptr->atomic_transfer_length_granularity); 9830 scsi_ulto4b(0, bl_ptr->max_atomic_transfer_length_with_atomic_boundary); 9831 scsi_ulto4b(0, bl_ptr->max_atomic_boundary_size); 9832 } 9833 scsi_u64to8b(UINT64_MAX, bl_ptr->max_write_same_length); 9834 9835 ctl_set_success(ctsio); 9836 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9837 ctsio->be_move_done = ctl_config_move_done; 9838 ctl_datamove((union ctl_io *)ctsio); 9839 return (CTL_RETVAL_COMPLETE); 9840} 9841 9842static int 9843ctl_inquiry_evpd_bdc(struct ctl_scsiio *ctsio, int alloc_len) 9844{ 9845 struct scsi_vpd_block_device_characteristics *bdc_ptr; 9846 struct ctl_lun *lun; 9847 const char *value; 9848 u_int i; 9849 9850 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9851 9852 ctsio->kern_data_ptr = malloc(sizeof(*bdc_ptr), M_CTL, M_WAITOK | M_ZERO); 9853 bdc_ptr = (struct scsi_vpd_block_device_characteristics *)ctsio->kern_data_ptr; 9854 ctsio->kern_sg_entries = 0; 9855 9856 if (sizeof(*bdc_ptr) < alloc_len) { 9857 ctsio->residual = alloc_len - sizeof(*bdc_ptr); 9858 ctsio->kern_data_len = sizeof(*bdc_ptr); 9859 ctsio->kern_total_len = sizeof(*bdc_ptr); 9860 } else { 9861 ctsio->residual = 0; 9862 ctsio->kern_data_len = alloc_len; 9863 ctsio->kern_total_len = alloc_len; 9864 } 9865 ctsio->kern_data_resid = 0; 9866 ctsio->kern_rel_offset = 0; 9867 ctsio->kern_sg_entries = 0; 9868 9869 /* 9870 * The control device is always connected. The disk device, on the 9871 * other hand, may not be online all the time. Need to change this 9872 * to figure out whether the disk device is actually online or not. 9873 */ 9874 if (lun != NULL) 9875 bdc_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9876 lun->be_lun->lun_type; 9877 else 9878 bdc_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9879 bdc_ptr->page_code = SVPD_BDC; 9880 scsi_ulto2b(sizeof(*bdc_ptr) - 4, bdc_ptr->page_length); 9881 if (lun != NULL && 9882 (value = ctl_get_opt(&lun->be_lun->options, "rpm")) != NULL) 9883 i = strtol(value, NULL, 0); 9884 else 9885 i = CTL_DEFAULT_ROTATION_RATE; 9886 scsi_ulto2b(i, bdc_ptr->medium_rotation_rate); 9887 if (lun != NULL && 9888 (value = ctl_get_opt(&lun->be_lun->options, "formfactor")) != NULL) 9889 i = strtol(value, NULL, 0); 9890 else 9891 i = 0; 9892 bdc_ptr->wab_wac_ff = (i & 0x0f); 9893 bdc_ptr->flags = SVPD_FUAB | SVPD_VBULS; 9894 9895 ctl_set_success(ctsio); 9896 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9897 ctsio->be_move_done = ctl_config_move_done; 9898 ctl_datamove((union ctl_io *)ctsio); 9899 return (CTL_RETVAL_COMPLETE); 9900} 9901 9902static int 9903ctl_inquiry_evpd_lbp(struct ctl_scsiio *ctsio, int alloc_len) 9904{ 9905 struct scsi_vpd_logical_block_prov *lbp_ptr; 9906 struct ctl_lun *lun; 9907 9908 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9909 9910 ctsio->kern_data_ptr = malloc(sizeof(*lbp_ptr), M_CTL, M_WAITOK | M_ZERO); 9911 lbp_ptr = (struct scsi_vpd_logical_block_prov *)ctsio->kern_data_ptr; 9912 ctsio->kern_sg_entries = 0; 9913 9914 if (sizeof(*lbp_ptr) < alloc_len) { 9915 ctsio->residual = alloc_len - sizeof(*lbp_ptr); 9916 ctsio->kern_data_len = sizeof(*lbp_ptr); 9917 ctsio->kern_total_len = sizeof(*lbp_ptr); 9918 } else { 9919 ctsio->residual = 0; 9920 ctsio->kern_data_len = alloc_len; 9921 ctsio->kern_total_len = alloc_len; 9922 } 9923 ctsio->kern_data_resid = 0; 9924 ctsio->kern_rel_offset = 0; 9925 ctsio->kern_sg_entries = 0; 9926 9927 /* 9928 * The control device is always connected. The disk device, on the 9929 * other hand, may not be online all the time. Need to change this 9930 * to figure out whether the disk device is actually online or not. 9931 */ 9932 if (lun != NULL) 9933 lbp_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9934 lun->be_lun->lun_type; 9935 else 9936 lbp_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9937 9938 lbp_ptr->page_code = SVPD_LBP; 9939 scsi_ulto2b(sizeof(*lbp_ptr) - 4, lbp_ptr->page_length); 9940 lbp_ptr->threshold_exponent = CTL_LBP_EXPONENT; 9941 if (lun != NULL && lun->be_lun->flags & CTL_LUN_FLAG_UNMAP) { 9942 lbp_ptr->flags = SVPD_LBP_UNMAP | SVPD_LBP_WS16 | 9943 SVPD_LBP_WS10 | SVPD_LBP_RZ | SVPD_LBP_ANC_SUP; 9944 lbp_ptr->prov_type = SVPD_LBP_THIN; 9945 } 9946 9947 ctl_set_success(ctsio); 9948 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9949 ctsio->be_move_done = ctl_config_move_done; 9950 ctl_datamove((union ctl_io *)ctsio); 9951 return (CTL_RETVAL_COMPLETE); 9952} 9953 9954/* 9955 * INQUIRY with the EVPD bit set. 9956 */ 9957static int 9958ctl_inquiry_evpd(struct ctl_scsiio *ctsio) 9959{ 9960 struct ctl_lun *lun; 9961 struct scsi_inquiry *cdb; 9962 int alloc_len, retval; 9963 9964 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9965 cdb = (struct scsi_inquiry *)ctsio->cdb; 9966 alloc_len = scsi_2btoul(cdb->length); 9967 9968 switch (cdb->page_code) { 9969 case SVPD_SUPPORTED_PAGES: 9970 retval = ctl_inquiry_evpd_supported(ctsio, alloc_len); 9971 break; 9972 case SVPD_UNIT_SERIAL_NUMBER: 9973 retval = ctl_inquiry_evpd_serial(ctsio, alloc_len); 9974 break; 9975 case SVPD_DEVICE_ID: 9976 retval = ctl_inquiry_evpd_devid(ctsio, alloc_len); 9977 break; 9978 case SVPD_EXTENDED_INQUIRY_DATA: 9979 retval = ctl_inquiry_evpd_eid(ctsio, alloc_len); 9980 break; 9981 case SVPD_MODE_PAGE_POLICY: 9982 retval = ctl_inquiry_evpd_mpp(ctsio, alloc_len); 9983 break; 9984 case SVPD_SCSI_PORTS: 9985 retval = ctl_inquiry_evpd_scsi_ports(ctsio, alloc_len); 9986 break; 9987 case SVPD_SCSI_TPC: 9988 retval = ctl_inquiry_evpd_tpc(ctsio, alloc_len); 9989 break; 9990 case SVPD_BLOCK_LIMITS: 9991 if (lun == NULL || lun->be_lun->lun_type != T_DIRECT) 9992 goto err; 9993 retval = ctl_inquiry_evpd_block_limits(ctsio, alloc_len); 9994 break; 9995 case SVPD_BDC: 9996 if (lun == NULL || lun->be_lun->lun_type != T_DIRECT) 9997 goto err; 9998 retval = ctl_inquiry_evpd_bdc(ctsio, alloc_len); 9999 break; 10000 case SVPD_LBP: 10001 if (lun == NULL || lun->be_lun->lun_type != T_DIRECT) 10002 goto err; 10003 retval = ctl_inquiry_evpd_lbp(ctsio, alloc_len); 10004 break; 10005 default: 10006err: 10007 ctl_set_invalid_field(ctsio, 10008 /*sks_valid*/ 1, 10009 /*command*/ 1, 10010 /*field*/ 2, 10011 /*bit_valid*/ 0, 10012 /*bit*/ 0); 10013 ctl_done((union ctl_io *)ctsio); 10014 retval = CTL_RETVAL_COMPLETE; 10015 break; 10016 } 10017 10018 return (retval); 10019} 10020 10021/* 10022 * Standard INQUIRY data. 10023 */ 10024static int 10025ctl_inquiry_std(struct ctl_scsiio *ctsio) 10026{ 10027 struct scsi_inquiry_data *inq_ptr; 10028 struct scsi_inquiry *cdb; 10029 struct ctl_softc *softc = control_softc; 10030 struct ctl_port *port; 10031 struct ctl_lun *lun; 10032 char *val; 10033 uint32_t alloc_len, data_len; 10034 ctl_port_type port_type; 10035 10036 port = ctl_io_port(&ctsio->io_hdr); 10037 port_type = port->port_type; 10038 if (port_type == CTL_PORT_IOCTL || port_type == CTL_PORT_INTERNAL) 10039 port_type = CTL_PORT_SCSI; 10040 10041 lun = ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10042 cdb = (struct scsi_inquiry *)ctsio->cdb; 10043 alloc_len = scsi_2btoul(cdb->length); 10044 10045 /* 10046 * We malloc the full inquiry data size here and fill it 10047 * in. If the user only asks for less, we'll give him 10048 * that much. 10049 */ 10050 data_len = offsetof(struct scsi_inquiry_data, vendor_specific1); 10051 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 10052 inq_ptr = (struct scsi_inquiry_data *)ctsio->kern_data_ptr; 10053 ctsio->kern_sg_entries = 0; 10054 ctsio->kern_data_resid = 0; 10055 ctsio->kern_rel_offset = 0; 10056 10057 if (data_len < alloc_len) { 10058 ctsio->residual = alloc_len - data_len; 10059 ctsio->kern_data_len = data_len; 10060 ctsio->kern_total_len = data_len; 10061 } else { 10062 ctsio->residual = 0; 10063 ctsio->kern_data_len = alloc_len; 10064 ctsio->kern_total_len = alloc_len; 10065 } 10066 10067 if (lun != NULL) { 10068 if ((lun->flags & CTL_LUN_PRIMARY_SC) || 10069 softc->ha_link >= CTL_HA_LINK_UNKNOWN) { 10070 inq_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10071 lun->be_lun->lun_type; 10072 } else { 10073 inq_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | 10074 lun->be_lun->lun_type; 10075 } 10076 if (lun->flags & CTL_LUN_REMOVABLE) 10077 inq_ptr->dev_qual2 |= SID_RMB; 10078 } else 10079 inq_ptr->device = (SID_QUAL_BAD_LU << 5) | T_NODEVICE; 10080 10081 /* RMB in byte 2 is 0 */ 10082 inq_ptr->version = SCSI_REV_SPC4; 10083 10084 /* 10085 * According to SAM-3, even if a device only supports a single 10086 * level of LUN addressing, it should still set the HISUP bit: 10087 * 10088 * 4.9.1 Logical unit numbers overview 10089 * 10090 * All logical unit number formats described in this standard are 10091 * hierarchical in structure even when only a single level in that 10092 * hierarchy is used. The HISUP bit shall be set to one in the 10093 * standard INQUIRY data (see SPC-2) when any logical unit number 10094 * format described in this standard is used. Non-hierarchical 10095 * formats are outside the scope of this standard. 10096 * 10097 * Therefore we set the HiSup bit here. 10098 * 10099 * The reponse format is 2, per SPC-3. 10100 */ 10101 inq_ptr->response_format = SID_HiSup | 2; 10102 10103 inq_ptr->additional_length = data_len - 10104 (offsetof(struct scsi_inquiry_data, additional_length) + 1); 10105 CTL_DEBUG_PRINT(("additional_length = %d\n", 10106 inq_ptr->additional_length)); 10107 10108 inq_ptr->spc3_flags = SPC3_SID_3PC | SPC3_SID_TPGS_IMPLICIT; 10109 if (port_type == CTL_PORT_SCSI) 10110 inq_ptr->spc2_flags = SPC2_SID_ADDR16; 10111 inq_ptr->spc2_flags |= SPC2_SID_MultiP; 10112 inq_ptr->flags = SID_CmdQue; 10113 if (port_type == CTL_PORT_SCSI) 10114 inq_ptr->flags |= SID_WBus16 | SID_Sync; 10115 10116 /* 10117 * Per SPC-3, unused bytes in ASCII strings are filled with spaces. 10118 * We have 8 bytes for the vendor name, and 16 bytes for the device 10119 * name and 4 bytes for the revision. 10120 */ 10121 if (lun == NULL || (val = ctl_get_opt(&lun->be_lun->options, 10122 "vendor")) == NULL) { 10123 strncpy(inq_ptr->vendor, CTL_VENDOR, sizeof(inq_ptr->vendor)); 10124 } else { 10125 memset(inq_ptr->vendor, ' ', sizeof(inq_ptr->vendor)); 10126 strncpy(inq_ptr->vendor, val, 10127 min(sizeof(inq_ptr->vendor), strlen(val))); 10128 } 10129 if (lun == NULL) { 10130 strncpy(inq_ptr->product, CTL_DIRECT_PRODUCT, 10131 sizeof(inq_ptr->product)); 10132 } else if ((val = ctl_get_opt(&lun->be_lun->options, "product")) == NULL) { 10133 switch (lun->be_lun->lun_type) { 10134 case T_DIRECT: 10135 strncpy(inq_ptr->product, CTL_DIRECT_PRODUCT, 10136 sizeof(inq_ptr->product)); 10137 break; 10138 case T_PROCESSOR: 10139 strncpy(inq_ptr->product, CTL_PROCESSOR_PRODUCT, 10140 sizeof(inq_ptr->product)); 10141 break; 10142 case T_CDROM: 10143 strncpy(inq_ptr->product, CTL_CDROM_PRODUCT, 10144 sizeof(inq_ptr->product)); 10145 break; 10146 default: 10147 strncpy(inq_ptr->product, CTL_UNKNOWN_PRODUCT, 10148 sizeof(inq_ptr->product)); 10149 break; 10150 } 10151 } else { 10152 memset(inq_ptr->product, ' ', sizeof(inq_ptr->product)); 10153 strncpy(inq_ptr->product, val, 10154 min(sizeof(inq_ptr->product), strlen(val))); 10155 } 10156 10157 /* 10158 * XXX make this a macro somewhere so it automatically gets 10159 * incremented when we make changes. 10160 */ 10161 if (lun == NULL || (val = ctl_get_opt(&lun->be_lun->options, 10162 "revision")) == NULL) { 10163 strncpy(inq_ptr->revision, "0001", sizeof(inq_ptr->revision)); 10164 } else { 10165 memset(inq_ptr->revision, ' ', sizeof(inq_ptr->revision)); 10166 strncpy(inq_ptr->revision, val, 10167 min(sizeof(inq_ptr->revision), strlen(val))); 10168 } 10169 10170 /* 10171 * For parallel SCSI, we support double transition and single 10172 * transition clocking. We also support QAS (Quick Arbitration 10173 * and Selection) and Information Unit transfers on both the 10174 * control and array devices. 10175 */ 10176 if (port_type == CTL_PORT_SCSI) 10177 inq_ptr->spi3data = SID_SPI_CLOCK_DT_ST | SID_SPI_QAS | 10178 SID_SPI_IUS; 10179 10180 /* SAM-5 (no version claimed) */ 10181 scsi_ulto2b(0x00A0, inq_ptr->version1); 10182 /* SPC-4 (no version claimed) */ 10183 scsi_ulto2b(0x0460, inq_ptr->version2); 10184 if (port_type == CTL_PORT_FC) { 10185 /* FCP-2 ANSI INCITS.350:2003 */ 10186 scsi_ulto2b(0x0917, inq_ptr->version3); 10187 } else if (port_type == CTL_PORT_SCSI) { 10188 /* SPI-4 ANSI INCITS.362:200x */ 10189 scsi_ulto2b(0x0B56, inq_ptr->version3); 10190 } else if (port_type == CTL_PORT_ISCSI) { 10191 /* iSCSI (no version claimed) */ 10192 scsi_ulto2b(0x0960, inq_ptr->version3); 10193 } else if (port_type == CTL_PORT_SAS) { 10194 /* SAS (no version claimed) */ 10195 scsi_ulto2b(0x0BE0, inq_ptr->version3); 10196 } 10197 10198 if (lun == NULL) { 10199 /* SBC-4 (no version claimed) */ 10200 scsi_ulto2b(0x0600, inq_ptr->version4); 10201 } else { 10202 switch (lun->be_lun->lun_type) { 10203 case T_DIRECT: 10204 /* SBC-4 (no version claimed) */ 10205 scsi_ulto2b(0x0600, inq_ptr->version4); 10206 break; 10207 case T_PROCESSOR: 10208 break; 10209 case T_CDROM: 10210 /* MMC-6 (no version claimed) */ 10211 scsi_ulto2b(0x04E0, inq_ptr->version4); 10212 break; 10213 default: 10214 break; 10215 } 10216 } 10217 10218 ctl_set_success(ctsio); 10219 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10220 ctsio->be_move_done = ctl_config_move_done; 10221 ctl_datamove((union ctl_io *)ctsio); 10222 return (CTL_RETVAL_COMPLETE); 10223} 10224 10225int 10226ctl_inquiry(struct ctl_scsiio *ctsio) 10227{ 10228 struct scsi_inquiry *cdb; 10229 int retval; 10230 10231 CTL_DEBUG_PRINT(("ctl_inquiry\n")); 10232 10233 cdb = (struct scsi_inquiry *)ctsio->cdb; 10234 if (cdb->byte2 & SI_EVPD) 10235 retval = ctl_inquiry_evpd(ctsio); 10236 else if (cdb->page_code == 0) 10237 retval = ctl_inquiry_std(ctsio); 10238 else { 10239 ctl_set_invalid_field(ctsio, 10240 /*sks_valid*/ 1, 10241 /*command*/ 1, 10242 /*field*/ 2, 10243 /*bit_valid*/ 0, 10244 /*bit*/ 0); 10245 ctl_done((union ctl_io *)ctsio); 10246 return (CTL_RETVAL_COMPLETE); 10247 } 10248 10249 return (retval); 10250} 10251 10252int 10253ctl_get_config(struct ctl_scsiio *ctsio) 10254{ 10255 struct scsi_get_config_header *hdr; 10256 struct scsi_get_config_feature *feature; 10257 struct scsi_get_config *cdb; 10258 struct ctl_lun *lun; 10259 uint32_t alloc_len, data_len; 10260 int rt, starting; 10261 10262 lun = ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10263 cdb = (struct scsi_get_config *)ctsio->cdb; 10264 rt = (cdb->rt & SGC_RT_MASK); 10265 starting = scsi_2btoul(cdb->starting_feature); 10266 alloc_len = scsi_2btoul(cdb->length); 10267 10268 data_len = sizeof(struct scsi_get_config_header) + 10269 sizeof(struct scsi_get_config_feature) + 8 + 10270 sizeof(struct scsi_get_config_feature) + 8 + 10271 sizeof(struct scsi_get_config_feature) + 4 + 10272 sizeof(struct scsi_get_config_feature) + 4 + 10273 sizeof(struct scsi_get_config_feature) + 8 + 10274 sizeof(struct scsi_get_config_feature) + 10275 sizeof(struct scsi_get_config_feature) + 4 + 10276 sizeof(struct scsi_get_config_feature) + 4; 10277 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 10278 ctsio->kern_sg_entries = 0; 10279 ctsio->kern_data_resid = 0; 10280 ctsio->kern_rel_offset = 0; 10281 10282 hdr = (struct scsi_get_config_header *)ctsio->kern_data_ptr; 10283 if (lun->flags & CTL_LUN_NO_MEDIA) 10284 scsi_ulto2b(0x0000, hdr->current_profile); 10285 else 10286 scsi_ulto2b(0x0010, hdr->current_profile); 10287 feature = (struct scsi_get_config_feature *)(hdr + 1); 10288 10289 if (starting > 0x001f) 10290 goto done; 10291 if (starting > 0x001e) 10292 goto f1f; 10293 if (starting > 0x001d) 10294 goto f1e; 10295 if (starting > 0x0010) 10296 goto f1d; 10297 if (starting > 0x0003) 10298 goto f10; 10299 if (starting > 0x0002) 10300 goto f3; 10301 if (starting > 0x0001) 10302 goto f2; 10303 if (starting > 0x0000) 10304 goto f1; 10305 10306 /* Profile List */ 10307 scsi_ulto2b(0x0000, feature->feature_code); 10308 feature->flags = SGC_F_PERSISTENT | SGC_F_CURRENT; 10309 feature->add_length = 8; 10310 scsi_ulto2b(0x0008, &feature->feature_data[0]); /* CD-ROM */ 10311 feature->feature_data[2] = 0x00; 10312 scsi_ulto2b(0x0010, &feature->feature_data[4]); /* DVD-ROM */ 10313 feature->feature_data[6] = 0x01; 10314 feature = (struct scsi_get_config_feature *) 10315 &feature->feature_data[feature->add_length]; 10316 10317f1: /* Core */ 10318 scsi_ulto2b(0x0001, feature->feature_code); 10319 feature->flags = 0x08 | SGC_F_PERSISTENT | SGC_F_CURRENT; 10320 feature->add_length = 8; 10321 scsi_ulto4b(0x00000000, &feature->feature_data[0]); 10322 feature->feature_data[4] = 0x03; 10323 feature = (struct scsi_get_config_feature *) 10324 &feature->feature_data[feature->add_length]; 10325 10326f2: /* Morphing */ 10327 scsi_ulto2b(0x0002, feature->feature_code); 10328 feature->flags = 0x04 | SGC_F_PERSISTENT | SGC_F_CURRENT; 10329 feature->add_length = 4; 10330 feature->feature_data[0] = 0x02; 10331 feature = (struct scsi_get_config_feature *) 10332 &feature->feature_data[feature->add_length]; 10333 10334f3: /* Removable Medium */ 10335 scsi_ulto2b(0x0003, feature->feature_code); 10336 feature->flags = 0x04 | SGC_F_PERSISTENT | SGC_F_CURRENT; 10337 feature->add_length = 4; 10338 feature->feature_data[0] = 0x39; 10339 feature = (struct scsi_get_config_feature *) 10340 &feature->feature_data[feature->add_length]; 10341 10342 if (rt == SGC_RT_CURRENT && (lun->flags & CTL_LUN_NO_MEDIA)) 10343 goto done; 10344 10345f10: /* Random Read */ 10346 scsi_ulto2b(0x0010, feature->feature_code); 10347 feature->flags = 0x00; 10348 if ((lun->flags & CTL_LUN_NO_MEDIA) == 0) 10349 feature->flags |= SGC_F_CURRENT; 10350 feature->add_length = 8; 10351 scsi_ulto4b(lun->be_lun->blocksize, &feature->feature_data[0]); 10352 scsi_ulto2b(1, &feature->feature_data[4]); 10353 feature->feature_data[6] = 0x00; 10354 feature = (struct scsi_get_config_feature *) 10355 &feature->feature_data[feature->add_length]; 10356 10357f1d: /* Multi-Read */ 10358 scsi_ulto2b(0x001D, feature->feature_code); 10359 feature->flags = 0x00; 10360 if ((lun->flags & CTL_LUN_NO_MEDIA) == 0) 10361 feature->flags |= SGC_F_CURRENT; 10362 feature->add_length = 0; 10363 feature = (struct scsi_get_config_feature *) 10364 &feature->feature_data[feature->add_length]; 10365 10366f1e: /* CD Read */ 10367 scsi_ulto2b(0x001E, feature->feature_code); 10368 feature->flags = 0x00; 10369 if ((lun->flags & CTL_LUN_NO_MEDIA) == 0) 10370 feature->flags |= SGC_F_CURRENT; 10371 feature->add_length = 4; 10372 feature->feature_data[0] = 0x00; 10373 feature = (struct scsi_get_config_feature *) 10374 &feature->feature_data[feature->add_length]; 10375 10376f1f: /* DVD Read */ 10377 scsi_ulto2b(0x001F, feature->feature_code); 10378 feature->flags = 0x08; 10379 if ((lun->flags & CTL_LUN_NO_MEDIA) == 0) 10380 feature->flags |= SGC_F_CURRENT; 10381 feature->add_length = 4; 10382 feature->feature_data[0] = 0x01; 10383 feature->feature_data[2] = 0x03; 10384 feature = (struct scsi_get_config_feature *) 10385 &feature->feature_data[feature->add_length]; 10386 10387done: 10388 data_len = (uint8_t *)feature - (uint8_t *)hdr; 10389 if (rt == SGC_RT_SPECIFIC && data_len > 4) { 10390 feature = (struct scsi_get_config_feature *)(hdr + 1); 10391 if (scsi_2btoul(feature->feature_code) == starting) 10392 feature = (struct scsi_get_config_feature *) 10393 &feature->feature_data[feature->add_length]; 10394 data_len = (uint8_t *)feature - (uint8_t *)hdr; 10395 } 10396 scsi_ulto4b(data_len - 4, hdr->data_length); 10397 if (data_len < alloc_len) { 10398 ctsio->residual = alloc_len - data_len; 10399 ctsio->kern_data_len = data_len; 10400 ctsio->kern_total_len = data_len; 10401 } else { 10402 ctsio->residual = 0; 10403 ctsio->kern_data_len = alloc_len; 10404 ctsio->kern_total_len = alloc_len; 10405 } 10406 10407 ctl_set_success(ctsio); 10408 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10409 ctsio->be_move_done = ctl_config_move_done; 10410 ctl_datamove((union ctl_io *)ctsio); 10411 return (CTL_RETVAL_COMPLETE); 10412} 10413 10414int 10415ctl_get_event_status(struct ctl_scsiio *ctsio) 10416{ 10417 struct scsi_get_event_status_header *hdr; 10418 struct scsi_get_event_status *cdb; 10419 struct ctl_lun *lun; 10420 uint32_t alloc_len, data_len; 10421 int notif_class; 10422 10423 lun = ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10424 cdb = (struct scsi_get_event_status *)ctsio->cdb; 10425 if ((cdb->byte2 & SGESN_POLLED) == 0) { 10426 ctl_set_invalid_field(ctsio, /*sks_valid*/ 1, /*command*/ 1, 10427 /*field*/ 1, /*bit_valid*/ 1, /*bit*/ 0); 10428 ctl_done((union ctl_io *)ctsio); 10429 return (CTL_RETVAL_COMPLETE); 10430 } 10431 notif_class = cdb->notif_class; 10432 alloc_len = scsi_2btoul(cdb->length); 10433 10434 data_len = sizeof(struct scsi_get_event_status_header); 10435 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 10436 ctsio->kern_sg_entries = 0; 10437 ctsio->kern_data_resid = 0; 10438 ctsio->kern_rel_offset = 0; 10439 10440 if (data_len < alloc_len) { 10441 ctsio->residual = alloc_len - data_len; 10442 ctsio->kern_data_len = data_len; 10443 ctsio->kern_total_len = data_len; 10444 } else { 10445 ctsio->residual = 0; 10446 ctsio->kern_data_len = alloc_len; 10447 ctsio->kern_total_len = alloc_len; 10448 } 10449 10450 hdr = (struct scsi_get_event_status_header *)ctsio->kern_data_ptr; 10451 scsi_ulto2b(0, hdr->descr_length); 10452 hdr->nea_class = SGESN_NEA; 10453 hdr->supported_class = 0; 10454 10455 ctl_set_success(ctsio); 10456 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10457 ctsio->be_move_done = ctl_config_move_done; 10458 ctl_datamove((union ctl_io *)ctsio); 10459 return (CTL_RETVAL_COMPLETE); 10460} 10461 10462int 10463ctl_mechanism_status(struct ctl_scsiio *ctsio) 10464{ 10465 struct scsi_mechanism_status_header *hdr; 10466 struct scsi_mechanism_status *cdb; 10467 struct ctl_lun *lun; 10468 uint32_t alloc_len, data_len; 10469 10470 lun = ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10471 cdb = (struct scsi_mechanism_status *)ctsio->cdb; 10472 alloc_len = scsi_2btoul(cdb->length); 10473 10474 data_len = sizeof(struct scsi_mechanism_status_header); 10475 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 10476 ctsio->kern_sg_entries = 0; 10477 ctsio->kern_data_resid = 0; 10478 ctsio->kern_rel_offset = 0; 10479 10480 if (data_len < alloc_len) { 10481 ctsio->residual = alloc_len - data_len; 10482 ctsio->kern_data_len = data_len; 10483 ctsio->kern_total_len = data_len; 10484 } else { 10485 ctsio->residual = 0; 10486 ctsio->kern_data_len = alloc_len; 10487 ctsio->kern_total_len = alloc_len; 10488 } 10489 10490 hdr = (struct scsi_mechanism_status_header *)ctsio->kern_data_ptr; 10491 hdr->state1 = 0x00; 10492 hdr->state2 = 0xe0; 10493 scsi_ulto3b(0, hdr->lba); 10494 hdr->slots_num = 0; 10495 scsi_ulto2b(0, hdr->slots_length); 10496 10497 ctl_set_success(ctsio); 10498 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10499 ctsio->be_move_done = ctl_config_move_done; 10500 ctl_datamove((union ctl_io *)ctsio); 10501 return (CTL_RETVAL_COMPLETE); 10502} 10503 10504static void 10505ctl_ultomsf(uint32_t lba, uint8_t *buf) 10506{ 10507 10508 lba += 150; 10509 buf[0] = 0; 10510 buf[1] = bin2bcd((lba / 75) / 60); 10511 buf[2] = bin2bcd((lba / 75) % 60); 10512 buf[3] = bin2bcd(lba % 75); 10513} 10514 10515int 10516ctl_read_toc(struct ctl_scsiio *ctsio) 10517{ 10518 struct scsi_read_toc_hdr *hdr; 10519 struct scsi_read_toc_type01_descr *descr; 10520 struct scsi_read_toc *cdb; 10521 struct ctl_lun *lun; 10522 uint32_t alloc_len, data_len; 10523 int format, msf; 10524 10525 lun = ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10526 cdb = (struct scsi_read_toc *)ctsio->cdb; 10527 msf = (cdb->byte2 & CD_MSF) != 0; 10528 format = cdb->format; 10529 alloc_len = scsi_2btoul(cdb->data_len); 10530 10531 data_len = sizeof(struct scsi_read_toc_hdr); 10532 if (format == 0) 10533 data_len += 2 * sizeof(struct scsi_read_toc_type01_descr); 10534 else 10535 data_len += sizeof(struct scsi_read_toc_type01_descr); 10536 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 10537 ctsio->kern_sg_entries = 0; 10538 ctsio->kern_data_resid = 0; 10539 ctsio->kern_rel_offset = 0; 10540 10541 if (data_len < alloc_len) { 10542 ctsio->residual = alloc_len - data_len; 10543 ctsio->kern_data_len = data_len; 10544 ctsio->kern_total_len = data_len; 10545 } else { 10546 ctsio->residual = 0; 10547 ctsio->kern_data_len = alloc_len; 10548 ctsio->kern_total_len = alloc_len; 10549 } 10550 10551 hdr = (struct scsi_read_toc_hdr *)ctsio->kern_data_ptr; 10552 if (format == 0) { 10553 scsi_ulto2b(0x12, hdr->data_length); 10554 hdr->first = 1; 10555 hdr->last = 1; 10556 descr = (struct scsi_read_toc_type01_descr *)(hdr + 1); 10557 descr->addr_ctl = 0x14; 10558 descr->track_number = 1; 10559 if (msf) 10560 ctl_ultomsf(0, descr->track_start); 10561 else 10562 scsi_ulto4b(0, descr->track_start); 10563 descr++; 10564 descr->addr_ctl = 0x14; 10565 descr->track_number = 0xaa; 10566 if (msf) 10567 ctl_ultomsf(lun->be_lun->maxlba+1, descr->track_start); 10568 else 10569 scsi_ulto4b(lun->be_lun->maxlba+1, descr->track_start); 10570 } else { 10571 scsi_ulto2b(0x0a, hdr->data_length); 10572 hdr->first = 1; 10573 hdr->last = 1; 10574 descr = (struct scsi_read_toc_type01_descr *)(hdr + 1); 10575 descr->addr_ctl = 0x14; 10576 descr->track_number = 1; 10577 if (msf) 10578 ctl_ultomsf(0, descr->track_start); 10579 else 10580 scsi_ulto4b(0, descr->track_start); 10581 } 10582 10583 ctl_set_success(ctsio); 10584 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10585 ctsio->be_move_done = ctl_config_move_done; 10586 ctl_datamove((union ctl_io *)ctsio); 10587 return (CTL_RETVAL_COMPLETE); 10588} 10589 10590/* 10591 * For known CDB types, parse the LBA and length. 10592 */ 10593static int 10594ctl_get_lba_len(union ctl_io *io, uint64_t *lba, uint64_t *len) 10595{ 10596 if (io->io_hdr.io_type != CTL_IO_SCSI) 10597 return (1); 10598 10599 switch (io->scsiio.cdb[0]) { 10600 case COMPARE_AND_WRITE: { 10601 struct scsi_compare_and_write *cdb; 10602 10603 cdb = (struct scsi_compare_and_write *)io->scsiio.cdb; 10604 10605 *lba = scsi_8btou64(cdb->addr); 10606 *len = cdb->length; 10607 break; 10608 } 10609 case READ_6: 10610 case WRITE_6: { 10611 struct scsi_rw_6 *cdb; 10612 10613 cdb = (struct scsi_rw_6 *)io->scsiio.cdb; 10614 10615 *lba = scsi_3btoul(cdb->addr); 10616 /* only 5 bits are valid in the most significant address byte */ 10617 *lba &= 0x1fffff; 10618 *len = cdb->length; 10619 break; 10620 } 10621 case READ_10: 10622 case WRITE_10: { 10623 struct scsi_rw_10 *cdb; 10624 10625 cdb = (struct scsi_rw_10 *)io->scsiio.cdb; 10626 10627 *lba = scsi_4btoul(cdb->addr); 10628 *len = scsi_2btoul(cdb->length); 10629 break; 10630 } 10631 case WRITE_VERIFY_10: { 10632 struct scsi_write_verify_10 *cdb; 10633 10634 cdb = (struct scsi_write_verify_10 *)io->scsiio.cdb; 10635 10636 *lba = scsi_4btoul(cdb->addr); 10637 *len = scsi_2btoul(cdb->length); 10638 break; 10639 } 10640 case READ_12: 10641 case WRITE_12: { 10642 struct scsi_rw_12 *cdb; 10643 10644 cdb = (struct scsi_rw_12 *)io->scsiio.cdb; 10645 10646 *lba = scsi_4btoul(cdb->addr); 10647 *len = scsi_4btoul(cdb->length); 10648 break; 10649 } 10650 case WRITE_VERIFY_12: { 10651 struct scsi_write_verify_12 *cdb; 10652 10653 cdb = (struct scsi_write_verify_12 *)io->scsiio.cdb; 10654 10655 *lba = scsi_4btoul(cdb->addr); 10656 *len = scsi_4btoul(cdb->length); 10657 break; 10658 } 10659 case READ_16: 10660 case WRITE_16: { 10661 struct scsi_rw_16 *cdb; 10662 10663 cdb = (struct scsi_rw_16 *)io->scsiio.cdb; 10664 10665 *lba = scsi_8btou64(cdb->addr); 10666 *len = scsi_4btoul(cdb->length); 10667 break; 10668 } 10669 case WRITE_ATOMIC_16: { 10670 struct scsi_write_atomic_16 *cdb; 10671 10672 cdb = (struct scsi_write_atomic_16 *)io->scsiio.cdb; 10673 10674 *lba = scsi_8btou64(cdb->addr); 10675 *len = scsi_2btoul(cdb->length); 10676 break; 10677 } 10678 case WRITE_VERIFY_16: { 10679 struct scsi_write_verify_16 *cdb; 10680 10681 cdb = (struct scsi_write_verify_16 *)io->scsiio.cdb; 10682 10683 *lba = scsi_8btou64(cdb->addr); 10684 *len = scsi_4btoul(cdb->length); 10685 break; 10686 } 10687 case WRITE_SAME_10: { 10688 struct scsi_write_same_10 *cdb; 10689 10690 cdb = (struct scsi_write_same_10 *)io->scsiio.cdb; 10691 10692 *lba = scsi_4btoul(cdb->addr); 10693 *len = scsi_2btoul(cdb->length); 10694 break; 10695 } 10696 case WRITE_SAME_16: { 10697 struct scsi_write_same_16 *cdb; 10698 10699 cdb = (struct scsi_write_same_16 *)io->scsiio.cdb; 10700 10701 *lba = scsi_8btou64(cdb->addr); 10702 *len = scsi_4btoul(cdb->length); 10703 break; 10704 } 10705 case VERIFY_10: { 10706 struct scsi_verify_10 *cdb; 10707 10708 cdb = (struct scsi_verify_10 *)io->scsiio.cdb; 10709 10710 *lba = scsi_4btoul(cdb->addr); 10711 *len = scsi_2btoul(cdb->length); 10712 break; 10713 } 10714 case VERIFY_12: { 10715 struct scsi_verify_12 *cdb; 10716 10717 cdb = (struct scsi_verify_12 *)io->scsiio.cdb; 10718 10719 *lba = scsi_4btoul(cdb->addr); 10720 *len = scsi_4btoul(cdb->length); 10721 break; 10722 } 10723 case VERIFY_16: { 10724 struct scsi_verify_16 *cdb; 10725 10726 cdb = (struct scsi_verify_16 *)io->scsiio.cdb; 10727 10728 *lba = scsi_8btou64(cdb->addr); 10729 *len = scsi_4btoul(cdb->length); 10730 break; 10731 } 10732 case UNMAP: { 10733 *lba = 0; 10734 *len = UINT64_MAX; 10735 break; 10736 } 10737 case SERVICE_ACTION_IN: { /* GET LBA STATUS */ 10738 struct scsi_get_lba_status *cdb; 10739 10740 cdb = (struct scsi_get_lba_status *)io->scsiio.cdb; 10741 *lba = scsi_8btou64(cdb->addr); 10742 *len = UINT32_MAX; 10743 break; 10744 } 10745 default: 10746 return (1); 10747 break; /* NOTREACHED */ 10748 } 10749 10750 return (0); 10751} 10752 10753static ctl_action 10754ctl_extent_check_lba(uint64_t lba1, uint64_t len1, uint64_t lba2, uint64_t len2, 10755 bool seq) 10756{ 10757 uint64_t endlba1, endlba2; 10758 10759 endlba1 = lba1 + len1 - (seq ? 0 : 1); 10760 endlba2 = lba2 + len2 - 1; 10761 10762 if ((endlba1 < lba2) || (endlba2 < lba1)) 10763 return (CTL_ACTION_PASS); 10764 else 10765 return (CTL_ACTION_BLOCK); 10766} 10767 10768static int 10769ctl_extent_check_unmap(union ctl_io *io, uint64_t lba2, uint64_t len2) 10770{ 10771 struct ctl_ptr_len_flags *ptrlen; 10772 struct scsi_unmap_desc *buf, *end, *range; 10773 uint64_t lba; 10774 uint32_t len; 10775 10776 /* If not UNMAP -- go other way. */ 10777 if (io->io_hdr.io_type != CTL_IO_SCSI || 10778 io->scsiio.cdb[0] != UNMAP) 10779 return (CTL_ACTION_ERROR); 10780 10781 /* If UNMAP without data -- block and wait for data. */ 10782 ptrlen = (struct ctl_ptr_len_flags *) 10783 &io->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 10784 if ((io->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0 || 10785 ptrlen->ptr == NULL) 10786 return (CTL_ACTION_BLOCK); 10787 10788 /* UNMAP with data -- check for collision. */ 10789 buf = (struct scsi_unmap_desc *)ptrlen->ptr; 10790 end = buf + ptrlen->len / sizeof(*buf); 10791 for (range = buf; range < end; range++) { 10792 lba = scsi_8btou64(range->lba); 10793 len = scsi_4btoul(range->length); 10794 if ((lba < lba2 + len2) && (lba + len > lba2)) 10795 return (CTL_ACTION_BLOCK); 10796 } 10797 return (CTL_ACTION_PASS); 10798} 10799 10800static ctl_action 10801ctl_extent_check(union ctl_io *io1, union ctl_io *io2, bool seq) 10802{ 10803 uint64_t lba1, lba2; 10804 uint64_t len1, len2; 10805 int retval; 10806 10807 if (ctl_get_lba_len(io2, &lba2, &len2) != 0) 10808 return (CTL_ACTION_ERROR); 10809 10810 retval = ctl_extent_check_unmap(io1, lba2, len2); 10811 if (retval != CTL_ACTION_ERROR) 10812 return (retval); 10813 10814 if (ctl_get_lba_len(io1, &lba1, &len1) != 0) 10815 return (CTL_ACTION_ERROR); 10816 10817 if (io1->io_hdr.flags & CTL_FLAG_SERSEQ_DONE) 10818 seq = FALSE; 10819 return (ctl_extent_check_lba(lba1, len1, lba2, len2, seq)); 10820} 10821 10822static ctl_action 10823ctl_extent_check_seq(union ctl_io *io1, union ctl_io *io2) 10824{ 10825 uint64_t lba1, lba2; 10826 uint64_t len1, len2; 10827 10828 if (io1->io_hdr.flags & CTL_FLAG_SERSEQ_DONE) 10829 return (CTL_ACTION_PASS); 10830 if (ctl_get_lba_len(io1, &lba1, &len1) != 0) 10831 return (CTL_ACTION_ERROR); 10832 if (ctl_get_lba_len(io2, &lba2, &len2) != 0) 10833 return (CTL_ACTION_ERROR); 10834 10835 if (lba1 + len1 == lba2) 10836 return (CTL_ACTION_BLOCK); 10837 return (CTL_ACTION_PASS); 10838} 10839 10840static ctl_action 10841ctl_check_for_blockage(struct ctl_lun *lun, union ctl_io *pending_io, 10842 union ctl_io *ooa_io) 10843{ 10844 const struct ctl_cmd_entry *pending_entry, *ooa_entry; 10845 const ctl_serialize_action *serialize_row; 10846 10847 /* 10848 * The initiator attempted multiple untagged commands at the same 10849 * time. Can't do that. 10850 */ 10851 if ((pending_io->scsiio.tag_type == CTL_TAG_UNTAGGED) 10852 && (ooa_io->scsiio.tag_type == CTL_TAG_UNTAGGED) 10853 && ((pending_io->io_hdr.nexus.targ_port == 10854 ooa_io->io_hdr.nexus.targ_port) 10855 && (pending_io->io_hdr.nexus.initid == 10856 ooa_io->io_hdr.nexus.initid)) 10857 && ((ooa_io->io_hdr.flags & (CTL_FLAG_ABORT | 10858 CTL_FLAG_STATUS_SENT)) == 0)) 10859 return (CTL_ACTION_OVERLAP); 10860 10861 /* 10862 * The initiator attempted to send multiple tagged commands with 10863 * the same ID. (It's fine if different initiators have the same 10864 * tag ID.) 10865 * 10866 * Even if all of those conditions are true, we don't kill the I/O 10867 * if the command ahead of us has been aborted. We won't end up 10868 * sending it to the FETD, and it's perfectly legal to resend a 10869 * command with the same tag number as long as the previous 10870 * instance of this tag number has been aborted somehow. 10871 */ 10872 if ((pending_io->scsiio.tag_type != CTL_TAG_UNTAGGED) 10873 && (ooa_io->scsiio.tag_type != CTL_TAG_UNTAGGED) 10874 && (pending_io->scsiio.tag_num == ooa_io->scsiio.tag_num) 10875 && ((pending_io->io_hdr.nexus.targ_port == 10876 ooa_io->io_hdr.nexus.targ_port) 10877 && (pending_io->io_hdr.nexus.initid == 10878 ooa_io->io_hdr.nexus.initid)) 10879 && ((ooa_io->io_hdr.flags & (CTL_FLAG_ABORT | 10880 CTL_FLAG_STATUS_SENT)) == 0)) 10881 return (CTL_ACTION_OVERLAP_TAG); 10882 10883 /* 10884 * If we get a head of queue tag, SAM-3 says that we should 10885 * immediately execute it. 10886 * 10887 * What happens if this command would normally block for some other 10888 * reason? e.g. a request sense with a head of queue tag 10889 * immediately after a write. Normally that would block, but this 10890 * will result in its getting executed immediately... 10891 * 10892 * We currently return "pass" instead of "skip", so we'll end up 10893 * going through the rest of the queue to check for overlapped tags. 10894 * 10895 * XXX KDM check for other types of blockage first?? 10896 */ 10897 if (pending_io->scsiio.tag_type == CTL_TAG_HEAD_OF_QUEUE) 10898 return (CTL_ACTION_PASS); 10899 10900 /* 10901 * Ordered tags have to block until all items ahead of them 10902 * have completed. If we get called with an ordered tag, we always 10903 * block, if something else is ahead of us in the queue. 10904 */ 10905 if (pending_io->scsiio.tag_type == CTL_TAG_ORDERED) 10906 return (CTL_ACTION_BLOCK); 10907 10908 /* 10909 * Simple tags get blocked until all head of queue and ordered tags 10910 * ahead of them have completed. I'm lumping untagged commands in 10911 * with simple tags here. XXX KDM is that the right thing to do? 10912 */ 10913 if (((pending_io->scsiio.tag_type == CTL_TAG_UNTAGGED) 10914 || (pending_io->scsiio.tag_type == CTL_TAG_SIMPLE)) 10915 && ((ooa_io->scsiio.tag_type == CTL_TAG_HEAD_OF_QUEUE) 10916 || (ooa_io->scsiio.tag_type == CTL_TAG_ORDERED))) 10917 return (CTL_ACTION_BLOCK); 10918 10919 pending_entry = ctl_get_cmd_entry(&pending_io->scsiio, NULL); 10920 ooa_entry = ctl_get_cmd_entry(&ooa_io->scsiio, NULL); 10921 10922 serialize_row = ctl_serialize_table[ooa_entry->seridx]; 10923 10924 switch (serialize_row[pending_entry->seridx]) { 10925 case CTL_SER_BLOCK: 10926 return (CTL_ACTION_BLOCK); 10927 case CTL_SER_EXTENT: 10928 return (ctl_extent_check(ooa_io, pending_io, 10929 (lun->be_lun && lun->be_lun->serseq == CTL_LUN_SERSEQ_ON))); 10930 case CTL_SER_EXTENTOPT: 10931 if ((lun->mode_pages.control_page[CTL_PAGE_CURRENT].queue_flags 10932 & SCP_QUEUE_ALG_MASK) != SCP_QUEUE_ALG_UNRESTRICTED) 10933 return (ctl_extent_check(ooa_io, pending_io, 10934 (lun->be_lun && 10935 lun->be_lun->serseq == CTL_LUN_SERSEQ_ON))); 10936 return (CTL_ACTION_PASS); 10937 case CTL_SER_EXTENTSEQ: 10938 if (lun->be_lun && lun->be_lun->serseq != CTL_LUN_SERSEQ_OFF) 10939 return (ctl_extent_check_seq(ooa_io, pending_io)); 10940 return (CTL_ACTION_PASS); 10941 case CTL_SER_PASS: 10942 return (CTL_ACTION_PASS); 10943 case CTL_SER_BLOCKOPT: 10944 if ((lun->mode_pages.control_page[CTL_PAGE_CURRENT].queue_flags 10945 & SCP_QUEUE_ALG_MASK) != SCP_QUEUE_ALG_UNRESTRICTED) 10946 return (CTL_ACTION_BLOCK); 10947 return (CTL_ACTION_PASS); 10948 case CTL_SER_SKIP: 10949 return (CTL_ACTION_SKIP); 10950 default: 10951 panic("invalid serialization value %d", 10952 serialize_row[pending_entry->seridx]); 10953 } 10954 10955 return (CTL_ACTION_ERROR); 10956} 10957 10958/* 10959 * Check for blockage or overlaps against the OOA (Order Of Arrival) queue. 10960 * Assumptions: 10961 * - pending_io is generally either incoming, or on the blocked queue 10962 * - starting I/O is the I/O we want to start the check with. 10963 */ 10964static ctl_action 10965ctl_check_ooa(struct ctl_lun *lun, union ctl_io *pending_io, 10966 union ctl_io *starting_io) 10967{ 10968 union ctl_io *ooa_io; 10969 ctl_action action; 10970 10971 mtx_assert(&lun->lun_lock, MA_OWNED); 10972 10973 /* 10974 * Run back along the OOA queue, starting with the current 10975 * blocked I/O and going through every I/O before it on the 10976 * queue. If starting_io is NULL, we'll just end up returning 10977 * CTL_ACTION_PASS. 10978 */ 10979 for (ooa_io = starting_io; ooa_io != NULL; 10980 ooa_io = (union ctl_io *)TAILQ_PREV(&ooa_io->io_hdr, ctl_ooaq, 10981 ooa_links)){ 10982 10983 /* 10984 * This routine just checks to see whether 10985 * cur_blocked is blocked by ooa_io, which is ahead 10986 * of it in the queue. It doesn't queue/dequeue 10987 * cur_blocked. 10988 */ 10989 action = ctl_check_for_blockage(lun, pending_io, ooa_io); 10990 switch (action) { 10991 case CTL_ACTION_BLOCK: 10992 case CTL_ACTION_OVERLAP: 10993 case CTL_ACTION_OVERLAP_TAG: 10994 case CTL_ACTION_SKIP: 10995 case CTL_ACTION_ERROR: 10996 return (action); 10997 break; /* NOTREACHED */ 10998 case CTL_ACTION_PASS: 10999 break; 11000 default: 11001 panic("invalid action %d", action); 11002 break; /* NOTREACHED */ 11003 } 11004 } 11005 11006 return (CTL_ACTION_PASS); 11007} 11008 11009/* 11010 * Assumptions: 11011 * - An I/O has just completed, and has been removed from the per-LUN OOA 11012 * queue, so some items on the blocked queue may now be unblocked. 11013 */ 11014static int 11015ctl_check_blocked(struct ctl_lun *lun) 11016{ 11017 struct ctl_softc *softc = lun->ctl_softc; 11018 union ctl_io *cur_blocked, *next_blocked; 11019 11020 mtx_assert(&lun->lun_lock, MA_OWNED); 11021 11022 /* 11023 * Run forward from the head of the blocked queue, checking each 11024 * entry against the I/Os prior to it on the OOA queue to see if 11025 * there is still any blockage. 11026 * 11027 * We cannot use the TAILQ_FOREACH() macro, because it can't deal 11028 * with our removing a variable on it while it is traversing the 11029 * list. 11030 */ 11031 for (cur_blocked = (union ctl_io *)TAILQ_FIRST(&lun->blocked_queue); 11032 cur_blocked != NULL; cur_blocked = next_blocked) { 11033 union ctl_io *prev_ooa; 11034 ctl_action action; 11035 11036 next_blocked = (union ctl_io *)TAILQ_NEXT(&cur_blocked->io_hdr, 11037 blocked_links); 11038 11039 prev_ooa = (union ctl_io *)TAILQ_PREV(&cur_blocked->io_hdr, 11040 ctl_ooaq, ooa_links); 11041 11042 /* 11043 * If cur_blocked happens to be the first item in the OOA 11044 * queue now, prev_ooa will be NULL, and the action 11045 * returned will just be CTL_ACTION_PASS. 11046 */ 11047 action = ctl_check_ooa(lun, cur_blocked, prev_ooa); 11048 11049 switch (action) { 11050 case CTL_ACTION_BLOCK: 11051 /* Nothing to do here, still blocked */ 11052 break; 11053 case CTL_ACTION_OVERLAP: 11054 case CTL_ACTION_OVERLAP_TAG: 11055 /* 11056 * This shouldn't happen! In theory we've already 11057 * checked this command for overlap... 11058 */ 11059 break; 11060 case CTL_ACTION_PASS: 11061 case CTL_ACTION_SKIP: { 11062 const struct ctl_cmd_entry *entry; 11063 11064 /* 11065 * The skip case shouldn't happen, this transaction 11066 * should have never made it onto the blocked queue. 11067 */ 11068 /* 11069 * This I/O is no longer blocked, we can remove it 11070 * from the blocked queue. Since this is a TAILQ 11071 * (doubly linked list), we can do O(1) removals 11072 * from any place on the list. 11073 */ 11074 TAILQ_REMOVE(&lun->blocked_queue, &cur_blocked->io_hdr, 11075 blocked_links); 11076 cur_blocked->io_hdr.flags &= ~CTL_FLAG_BLOCKED; 11077 11078 if ((softc->ha_mode != CTL_HA_MODE_XFER) && 11079 (cur_blocked->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)){ 11080 /* 11081 * Need to send IO back to original side to 11082 * run 11083 */ 11084 union ctl_ha_msg msg_info; 11085 11086 cur_blocked->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 11087 msg_info.hdr.original_sc = 11088 cur_blocked->io_hdr.original_sc; 11089 msg_info.hdr.serializing_sc = cur_blocked; 11090 msg_info.hdr.msg_type = CTL_MSG_R2R; 11091 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 11092 sizeof(msg_info.hdr), M_NOWAIT); 11093 break; 11094 } 11095 entry = ctl_get_cmd_entry(&cur_blocked->scsiio, NULL); 11096 11097 /* 11098 * Check this I/O for LUN state changes that may 11099 * have happened while this command was blocked. 11100 * The LUN state may have been changed by a command 11101 * ahead of us in the queue, so we need to re-check 11102 * for any states that can be caused by SCSI 11103 * commands. 11104 */ 11105 if (ctl_scsiio_lun_check(lun, entry, 11106 &cur_blocked->scsiio) == 0) { 11107 cur_blocked->io_hdr.flags |= 11108 CTL_FLAG_IS_WAS_ON_RTR; 11109 ctl_enqueue_rtr(cur_blocked); 11110 } else 11111 ctl_done(cur_blocked); 11112 break; 11113 } 11114 default: 11115 /* 11116 * This probably shouldn't happen -- we shouldn't 11117 * get CTL_ACTION_ERROR, or anything else. 11118 */ 11119 break; 11120 } 11121 } 11122 11123 return (CTL_RETVAL_COMPLETE); 11124} 11125 11126/* 11127 * This routine (with one exception) checks LUN flags that can be set by 11128 * commands ahead of us in the OOA queue. These flags have to be checked 11129 * when a command initially comes in, and when we pull a command off the 11130 * blocked queue and are preparing to execute it. The reason we have to 11131 * check these flags for commands on the blocked queue is that the LUN 11132 * state may have been changed by a command ahead of us while we're on the 11133 * blocked queue. 11134 * 11135 * Ordering is somewhat important with these checks, so please pay 11136 * careful attention to the placement of any new checks. 11137 */ 11138static int 11139ctl_scsiio_lun_check(struct ctl_lun *lun, 11140 const struct ctl_cmd_entry *entry, struct ctl_scsiio *ctsio) 11141{ 11142 struct ctl_softc *softc = lun->ctl_softc; 11143 int retval; 11144 uint32_t residx; 11145 11146 retval = 0; 11147 11148 mtx_assert(&lun->lun_lock, MA_OWNED); 11149 11150 /* 11151 * If this shelf is a secondary shelf controller, we may have to 11152 * reject some commands disallowed by HA mode and link state. 11153 */ 11154 if ((lun->flags & CTL_LUN_PRIMARY_SC) == 0) { 11155 if (softc->ha_link == CTL_HA_LINK_OFFLINE && 11156 (entry->flags & CTL_CMD_FLAG_OK_ON_UNAVAIL) == 0) { 11157 ctl_set_lun_unavail(ctsio); 11158 retval = 1; 11159 goto bailout; 11160 } 11161 if ((lun->flags & CTL_LUN_PEER_SC_PRIMARY) == 0 && 11162 (entry->flags & CTL_CMD_FLAG_OK_ON_UNAVAIL) == 0) { 11163 ctl_set_lun_transit(ctsio); 11164 retval = 1; 11165 goto bailout; 11166 } 11167 if (softc->ha_mode == CTL_HA_MODE_ACT_STBY && 11168 (entry->flags & CTL_CMD_FLAG_OK_ON_STANDBY) == 0) { 11169 ctl_set_lun_standby(ctsio); 11170 retval = 1; 11171 goto bailout; 11172 } 11173 11174 /* The rest of checks are only done on executing side */ 11175 if (softc->ha_mode == CTL_HA_MODE_XFER) 11176 goto bailout; 11177 } 11178 11179 if (entry->pattern & CTL_LUN_PAT_WRITE) { 11180 if (lun->be_lun && 11181 lun->be_lun->flags & CTL_LUN_FLAG_READONLY) { 11182 ctl_set_hw_write_protected(ctsio); 11183 retval = 1; 11184 goto bailout; 11185 } 11186 if ((lun->mode_pages.control_page[CTL_PAGE_CURRENT] 11187 .eca_and_aen & SCP_SWP) != 0) { 11188 ctl_set_sense(ctsio, /*current_error*/ 1, 11189 /*sense_key*/ SSD_KEY_DATA_PROTECT, 11190 /*asc*/ 0x27, /*ascq*/ 0x02, SSD_ELEM_NONE); 11191 retval = 1; 11192 goto bailout; 11193 } 11194 } 11195 11196 /* 11197 * Check for a reservation conflict. If this command isn't allowed 11198 * even on reserved LUNs, and if this initiator isn't the one who 11199 * reserved us, reject the command with a reservation conflict. 11200 */ 11201 residx = ctl_get_initindex(&ctsio->io_hdr.nexus); 11202 if ((lun->flags & CTL_LUN_RESERVED) 11203 && ((entry->flags & CTL_CMD_FLAG_ALLOW_ON_RESV) == 0)) { 11204 if (lun->res_idx != residx) { 11205 ctl_set_reservation_conflict(ctsio); 11206 retval = 1; 11207 goto bailout; 11208 } 11209 } 11210 11211 if ((lun->flags & CTL_LUN_PR_RESERVED) == 0 || 11212 (entry->flags & CTL_CMD_FLAG_ALLOW_ON_PR_RESV)) { 11213 /* No reservation or command is allowed. */; 11214 } else if ((entry->flags & CTL_CMD_FLAG_ALLOW_ON_PR_WRESV) && 11215 (lun->res_type == SPR_TYPE_WR_EX || 11216 lun->res_type == SPR_TYPE_WR_EX_RO || 11217 lun->res_type == SPR_TYPE_WR_EX_AR)) { 11218 /* The command is allowed for Write Exclusive resv. */; 11219 } else { 11220 /* 11221 * if we aren't registered or it's a res holder type 11222 * reservation and this isn't the res holder then set a 11223 * conflict. 11224 */ 11225 if (ctl_get_prkey(lun, residx) == 0 11226 || (residx != lun->pr_res_idx && lun->res_type < 4)) { 11227 ctl_set_reservation_conflict(ctsio); 11228 retval = 1; 11229 goto bailout; 11230 } 11231 } 11232 11233 if ((entry->flags & CTL_CMD_FLAG_OK_ON_NO_MEDIA) == 0) { 11234 if (lun->flags & CTL_LUN_EJECTED) 11235 ctl_set_lun_ejected(ctsio); 11236 else if (lun->flags & CTL_LUN_NO_MEDIA) { 11237 if (lun->flags & CTL_LUN_REMOVABLE) 11238 ctl_set_lun_no_media(ctsio); 11239 else 11240 ctl_set_lun_int_reqd(ctsio); 11241 } else if (lun->flags & CTL_LUN_STOPPED) 11242 ctl_set_lun_stopped(ctsio); 11243 else 11244 goto bailout; 11245 retval = 1; 11246 goto bailout; 11247 } 11248 11249bailout: 11250 return (retval); 11251} 11252 11253static void 11254ctl_failover_io(union ctl_io *io, int have_lock) 11255{ 11256 ctl_set_busy(&io->scsiio); 11257 ctl_done(io); 11258} 11259 11260static void 11261ctl_failover_lun(union ctl_io *rio) 11262{ 11263 struct ctl_softc *softc = control_softc; 11264 struct ctl_lun *lun; 11265 struct ctl_io_hdr *io, *next_io; 11266 uint32_t targ_lun; 11267 11268 targ_lun = rio->io_hdr.nexus.targ_mapped_lun; 11269 CTL_DEBUG_PRINT(("FAILOVER for lun %ju\n", targ_lun)); 11270 11271 /* Find and lock the LUN. */ 11272 mtx_lock(&softc->ctl_lock); 11273 if ((targ_lun < CTL_MAX_LUNS) && 11274 ((lun = softc->ctl_luns[targ_lun]) != NULL)) { 11275 mtx_lock(&lun->lun_lock); 11276 mtx_unlock(&softc->ctl_lock); 11277 if (lun->flags & CTL_LUN_DISABLED) { 11278 mtx_unlock(&lun->lun_lock); 11279 return; 11280 } 11281 } else { 11282 mtx_unlock(&softc->ctl_lock); 11283 return; 11284 } 11285 11286 if (softc->ha_mode == CTL_HA_MODE_XFER) { 11287 TAILQ_FOREACH_SAFE(io, &lun->ooa_queue, ooa_links, next_io) { 11288 /* We are master */ 11289 if (io->flags & CTL_FLAG_FROM_OTHER_SC) { 11290 if (io->flags & CTL_FLAG_IO_ACTIVE) { 11291 io->flags |= CTL_FLAG_ABORT; 11292 io->flags |= CTL_FLAG_FAILOVER; 11293 } else { /* This can be only due to DATAMOVE */ 11294 io->msg_type = CTL_MSG_DATAMOVE_DONE; 11295 io->flags &= ~CTL_FLAG_DMA_INPROG; 11296 io->flags |= CTL_FLAG_IO_ACTIVE; 11297 io->port_status = 31340; 11298 ctl_enqueue_isc((union ctl_io *)io); 11299 } 11300 } 11301 /* We are slave */ 11302 if (io->flags & CTL_FLAG_SENT_2OTHER_SC) { 11303 io->flags &= ~CTL_FLAG_SENT_2OTHER_SC; 11304 if (io->flags & CTL_FLAG_IO_ACTIVE) { 11305 io->flags |= CTL_FLAG_FAILOVER; 11306 } else { 11307 ctl_set_busy(&((union ctl_io *)io)-> 11308 scsiio); 11309 ctl_done((union ctl_io *)io); 11310 } 11311 } 11312 } 11313 } else { /* SERIALIZE modes */ 11314 TAILQ_FOREACH_SAFE(io, &lun->blocked_queue, blocked_links, 11315 next_io) { 11316 /* We are master */ 11317 if (io->flags & CTL_FLAG_FROM_OTHER_SC) { 11318 TAILQ_REMOVE(&lun->blocked_queue, io, 11319 blocked_links); 11320 io->flags &= ~CTL_FLAG_BLOCKED; 11321 TAILQ_REMOVE(&lun->ooa_queue, io, ooa_links); 11322 ctl_free_io((union ctl_io *)io); 11323 } 11324 } 11325 TAILQ_FOREACH_SAFE(io, &lun->ooa_queue, ooa_links, next_io) { 11326 /* We are master */ 11327 if (io->flags & CTL_FLAG_FROM_OTHER_SC) { 11328 TAILQ_REMOVE(&lun->ooa_queue, io, ooa_links); 11329 ctl_free_io((union ctl_io *)io); 11330 } 11331 /* We are slave */ 11332 if (io->flags & CTL_FLAG_SENT_2OTHER_SC) { 11333 io->flags &= ~CTL_FLAG_SENT_2OTHER_SC; 11334 if (!(io->flags & CTL_FLAG_IO_ACTIVE)) { 11335 ctl_set_busy(&((union ctl_io *)io)-> 11336 scsiio); 11337 ctl_done((union ctl_io *)io); 11338 } 11339 } 11340 } 11341 ctl_check_blocked(lun); 11342 } 11343 mtx_unlock(&lun->lun_lock); 11344} 11345 11346static int 11347ctl_scsiio_precheck(struct ctl_softc *softc, struct ctl_scsiio *ctsio) 11348{ 11349 struct ctl_lun *lun; 11350 const struct ctl_cmd_entry *entry; 11351 uint32_t initidx, targ_lun; 11352 int retval; 11353 11354 retval = 0; 11355 11356 lun = NULL; 11357 11358 targ_lun = ctsio->io_hdr.nexus.targ_mapped_lun; 11359 if ((targ_lun < CTL_MAX_LUNS) 11360 && ((lun = softc->ctl_luns[targ_lun]) != NULL)) { 11361 /* 11362 * If the LUN is invalid, pretend that it doesn't exist. 11363 * It will go away as soon as all pending I/O has been 11364 * completed. 11365 */ 11366 mtx_lock(&lun->lun_lock); 11367 if (lun->flags & CTL_LUN_DISABLED) { 11368 mtx_unlock(&lun->lun_lock); 11369 lun = NULL; 11370 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr = NULL; 11371 ctsio->io_hdr.ctl_private[CTL_PRIV_BACKEND_LUN].ptr = NULL; 11372 } else { 11373 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr = lun; 11374 ctsio->io_hdr.ctl_private[CTL_PRIV_BACKEND_LUN].ptr = 11375 lun->be_lun; 11376 11377 /* 11378 * Every I/O goes into the OOA queue for a 11379 * particular LUN, and stays there until completion. 11380 */ 11381#ifdef CTL_TIME_IO 11382 if (TAILQ_EMPTY(&lun->ooa_queue)) { 11383 lun->idle_time += getsbinuptime() - 11384 lun->last_busy; 11385 } 11386#endif 11387 TAILQ_INSERT_TAIL(&lun->ooa_queue, &ctsio->io_hdr, 11388 ooa_links); 11389 } 11390 } else { 11391 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr = NULL; 11392 ctsio->io_hdr.ctl_private[CTL_PRIV_BACKEND_LUN].ptr = NULL; 11393 } 11394 11395 /* Get command entry and return error if it is unsuppotyed. */ 11396 entry = ctl_validate_command(ctsio); 11397 if (entry == NULL) { 11398 if (lun) 11399 mtx_unlock(&lun->lun_lock); 11400 return (retval); 11401 } 11402 11403 ctsio->io_hdr.flags &= ~CTL_FLAG_DATA_MASK; 11404 ctsio->io_hdr.flags |= entry->flags & CTL_FLAG_DATA_MASK; 11405 11406 /* 11407 * Check to see whether we can send this command to LUNs that don't 11408 * exist. This should pretty much only be the case for inquiry 11409 * and request sense. Further checks, below, really require having 11410 * a LUN, so we can't really check the command anymore. Just put 11411 * it on the rtr queue. 11412 */ 11413 if (lun == NULL) { 11414 if (entry->flags & CTL_CMD_FLAG_OK_ON_NO_LUN) { 11415 ctsio->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 11416 ctl_enqueue_rtr((union ctl_io *)ctsio); 11417 return (retval); 11418 } 11419 11420 ctl_set_unsupported_lun(ctsio); 11421 ctl_done((union ctl_io *)ctsio); 11422 CTL_DEBUG_PRINT(("ctl_scsiio_precheck: bailing out due to invalid LUN\n")); 11423 return (retval); 11424 } else { 11425 /* 11426 * Make sure we support this particular command on this LUN. 11427 * e.g., we don't support writes to the control LUN. 11428 */ 11429 if (!ctl_cmd_applicable(lun->be_lun->lun_type, entry)) { 11430 mtx_unlock(&lun->lun_lock); 11431 ctl_set_invalid_opcode(ctsio); 11432 ctl_done((union ctl_io *)ctsio); 11433 return (retval); 11434 } 11435 } 11436 11437 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 11438 11439#ifdef CTL_WITH_CA 11440 /* 11441 * If we've got a request sense, it'll clear the contingent 11442 * allegiance condition. Otherwise, if we have a CA condition for 11443 * this initiator, clear it, because it sent down a command other 11444 * than request sense. 11445 */ 11446 if ((ctsio->cdb[0] != REQUEST_SENSE) 11447 && (ctl_is_set(lun->have_ca, initidx))) 11448 ctl_clear_mask(lun->have_ca, initidx); 11449#endif 11450 11451 /* 11452 * If the command has this flag set, it handles its own unit 11453 * attention reporting, we shouldn't do anything. Otherwise we 11454 * check for any pending unit attentions, and send them back to the 11455 * initiator. We only do this when a command initially comes in, 11456 * not when we pull it off the blocked queue. 11457 * 11458 * According to SAM-3, section 5.3.2, the order that things get 11459 * presented back to the host is basically unit attentions caused 11460 * by some sort of reset event, busy status, reservation conflicts 11461 * or task set full, and finally any other status. 11462 * 11463 * One issue here is that some of the unit attentions we report 11464 * don't fall into the "reset" category (e.g. "reported luns data 11465 * has changed"). So reporting it here, before the reservation 11466 * check, may be technically wrong. I guess the only thing to do 11467 * would be to check for and report the reset events here, and then 11468 * check for the other unit attention types after we check for a 11469 * reservation conflict. 11470 * 11471 * XXX KDM need to fix this 11472 */ 11473 if ((entry->flags & CTL_CMD_FLAG_NO_SENSE) == 0) { 11474 ctl_ua_type ua_type; 11475 11476 ua_type = ctl_build_ua(lun, initidx, &ctsio->sense_data, 11477 SSD_TYPE_NONE); 11478 if (ua_type != CTL_UA_NONE) { 11479 mtx_unlock(&lun->lun_lock); 11480 ctsio->scsi_status = SCSI_STATUS_CHECK_COND; 11481 ctsio->io_hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 11482 ctsio->sense_len = SSD_FULL_SIZE; 11483 ctl_done((union ctl_io *)ctsio); 11484 return (retval); 11485 } 11486 } 11487 11488 11489 if (ctl_scsiio_lun_check(lun, entry, ctsio) != 0) { 11490 mtx_unlock(&lun->lun_lock); 11491 ctl_done((union ctl_io *)ctsio); 11492 return (retval); 11493 } 11494 11495 /* 11496 * XXX CHD this is where we want to send IO to other side if 11497 * this LUN is secondary on this SC. We will need to make a copy 11498 * of the IO and flag the IO on this side as SENT_2OTHER and the flag 11499 * the copy we send as FROM_OTHER. 11500 * We also need to stuff the address of the original IO so we can 11501 * find it easily. Something similar will need be done on the other 11502 * side so when we are done we can find the copy. 11503 */ 11504 if ((lun->flags & CTL_LUN_PRIMARY_SC) == 0 && 11505 (lun->flags & CTL_LUN_PEER_SC_PRIMARY) != 0 && 11506 (entry->flags & CTL_CMD_FLAG_RUN_HERE) == 0) { 11507 union ctl_ha_msg msg_info; 11508 int isc_retval; 11509 11510 ctsio->io_hdr.flags |= CTL_FLAG_SENT_2OTHER_SC; 11511 ctsio->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 11512 mtx_unlock(&lun->lun_lock); 11513 11514 msg_info.hdr.msg_type = CTL_MSG_SERIALIZE; 11515 msg_info.hdr.original_sc = (union ctl_io *)ctsio; 11516 msg_info.hdr.serializing_sc = NULL; 11517 msg_info.hdr.nexus = ctsio->io_hdr.nexus; 11518 msg_info.scsi.tag_num = ctsio->tag_num; 11519 msg_info.scsi.tag_type = ctsio->tag_type; 11520 msg_info.scsi.cdb_len = ctsio->cdb_len; 11521 memcpy(msg_info.scsi.cdb, ctsio->cdb, CTL_MAX_CDBLEN); 11522 11523 if ((isc_retval = ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 11524 sizeof(msg_info.scsi) - sizeof(msg_info.scsi.sense_data), 11525 M_WAITOK)) > CTL_HA_STATUS_SUCCESS) { 11526 ctl_set_busy(ctsio); 11527 ctl_done((union ctl_io *)ctsio); 11528 return (retval); 11529 } 11530 return (retval); 11531 } 11532 11533 switch (ctl_check_ooa(lun, (union ctl_io *)ctsio, 11534 (union ctl_io *)TAILQ_PREV(&ctsio->io_hdr, 11535 ctl_ooaq, ooa_links))) { 11536 case CTL_ACTION_BLOCK: 11537 ctsio->io_hdr.flags |= CTL_FLAG_BLOCKED; 11538 TAILQ_INSERT_TAIL(&lun->blocked_queue, &ctsio->io_hdr, 11539 blocked_links); 11540 mtx_unlock(&lun->lun_lock); 11541 return (retval); 11542 case CTL_ACTION_PASS: 11543 case CTL_ACTION_SKIP: 11544 ctsio->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 11545 mtx_unlock(&lun->lun_lock); 11546 ctl_enqueue_rtr((union ctl_io *)ctsio); 11547 break; 11548 case CTL_ACTION_OVERLAP: 11549 mtx_unlock(&lun->lun_lock); 11550 ctl_set_overlapped_cmd(ctsio); 11551 ctl_done((union ctl_io *)ctsio); 11552 break; 11553 case CTL_ACTION_OVERLAP_TAG: 11554 mtx_unlock(&lun->lun_lock); 11555 ctl_set_overlapped_tag(ctsio, ctsio->tag_num & 0xff); 11556 ctl_done((union ctl_io *)ctsio); 11557 break; 11558 case CTL_ACTION_ERROR: 11559 default: 11560 mtx_unlock(&lun->lun_lock); 11561 ctl_set_internal_failure(ctsio, 11562 /*sks_valid*/ 0, 11563 /*retry_count*/ 0); 11564 ctl_done((union ctl_io *)ctsio); 11565 break; 11566 } 11567 return (retval); 11568} 11569 11570const struct ctl_cmd_entry * 11571ctl_get_cmd_entry(struct ctl_scsiio *ctsio, int *sa) 11572{ 11573 const struct ctl_cmd_entry *entry; 11574 int service_action; 11575 11576 entry = &ctl_cmd_table[ctsio->cdb[0]]; 11577 if (sa) 11578 *sa = ((entry->flags & CTL_CMD_FLAG_SA5) != 0); 11579 if (entry->flags & CTL_CMD_FLAG_SA5) { 11580 service_action = ctsio->cdb[1] & SERVICE_ACTION_MASK; 11581 entry = &((const struct ctl_cmd_entry *) 11582 entry->execute)[service_action]; 11583 } 11584 return (entry); 11585} 11586 11587const struct ctl_cmd_entry * 11588ctl_validate_command(struct ctl_scsiio *ctsio) 11589{ 11590 const struct ctl_cmd_entry *entry; 11591 int i, sa; 11592 uint8_t diff; 11593 11594 entry = ctl_get_cmd_entry(ctsio, &sa); 11595 if (entry->execute == NULL) { 11596 if (sa) 11597 ctl_set_invalid_field(ctsio, 11598 /*sks_valid*/ 1, 11599 /*command*/ 1, 11600 /*field*/ 1, 11601 /*bit_valid*/ 1, 11602 /*bit*/ 4); 11603 else 11604 ctl_set_invalid_opcode(ctsio); 11605 ctl_done((union ctl_io *)ctsio); 11606 return (NULL); 11607 } 11608 KASSERT(entry->length > 0, 11609 ("Not defined length for command 0x%02x/0x%02x", 11610 ctsio->cdb[0], ctsio->cdb[1])); 11611 for (i = 1; i < entry->length; i++) { 11612 diff = ctsio->cdb[i] & ~entry->usage[i - 1]; 11613 if (diff == 0) 11614 continue; 11615 ctl_set_invalid_field(ctsio, 11616 /*sks_valid*/ 1, 11617 /*command*/ 1, 11618 /*field*/ i, 11619 /*bit_valid*/ 1, 11620 /*bit*/ fls(diff) - 1); 11621 ctl_done((union ctl_io *)ctsio); 11622 return (NULL); 11623 } 11624 return (entry); 11625} 11626 11627static int 11628ctl_cmd_applicable(uint8_t lun_type, const struct ctl_cmd_entry *entry) 11629{ 11630 11631 switch (lun_type) { 11632 case T_DIRECT: 11633 if ((entry->flags & CTL_CMD_FLAG_OK_ON_DIRECT) == 0) 11634 return (0); 11635 break; 11636 case T_PROCESSOR: 11637 if ((entry->flags & CTL_CMD_FLAG_OK_ON_PROC) == 0) 11638 return (0); 11639 break; 11640 case T_CDROM: 11641 if ((entry->flags & CTL_CMD_FLAG_OK_ON_CDROM) == 0) 11642 return (0); 11643 break; 11644 default: 11645 return (0); 11646 } 11647 return (1); 11648} 11649 11650static int 11651ctl_scsiio(struct ctl_scsiio *ctsio) 11652{ 11653 int retval; 11654 const struct ctl_cmd_entry *entry; 11655 11656 retval = CTL_RETVAL_COMPLETE; 11657 11658 CTL_DEBUG_PRINT(("ctl_scsiio cdb[0]=%02X\n", ctsio->cdb[0])); 11659 11660 entry = ctl_get_cmd_entry(ctsio, NULL); 11661 11662 /* 11663 * If this I/O has been aborted, just send it straight to 11664 * ctl_done() without executing it. 11665 */ 11666 if (ctsio->io_hdr.flags & CTL_FLAG_ABORT) { 11667 ctl_done((union ctl_io *)ctsio); 11668 goto bailout; 11669 } 11670 11671 /* 11672 * All the checks should have been handled by ctl_scsiio_precheck(). 11673 * We should be clear now to just execute the I/O. 11674 */ 11675 retval = entry->execute(ctsio); 11676 11677bailout: 11678 return (retval); 11679} 11680 11681/* 11682 * Since we only implement one target right now, a bus reset simply resets 11683 * our single target. 11684 */ 11685static int 11686ctl_bus_reset(struct ctl_softc *softc, union ctl_io *io) 11687{ 11688 return(ctl_target_reset(softc, io, CTL_UA_BUS_RESET)); 11689} 11690 11691static int 11692ctl_target_reset(struct ctl_softc *softc, union ctl_io *io, 11693 ctl_ua_type ua_type) 11694{ 11695 struct ctl_port *port; 11696 struct ctl_lun *lun; 11697 int retval; 11698 11699 if (!(io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)) { 11700 union ctl_ha_msg msg_info; 11701 11702 msg_info.hdr.nexus = io->io_hdr.nexus; 11703 if (ua_type==CTL_UA_TARG_RESET) 11704 msg_info.task.task_action = CTL_TASK_TARGET_RESET; 11705 else 11706 msg_info.task.task_action = CTL_TASK_BUS_RESET; 11707 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 11708 msg_info.hdr.original_sc = NULL; 11709 msg_info.hdr.serializing_sc = NULL; 11710 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 11711 sizeof(msg_info.task), M_WAITOK); 11712 } 11713 retval = 0; 11714 11715 mtx_lock(&softc->ctl_lock); 11716 port = ctl_io_port(&io->io_hdr); 11717 STAILQ_FOREACH(lun, &softc->lun_list, links) { 11718 if (port != NULL && 11719 ctl_lun_map_to_port(port, lun->lun) >= CTL_MAX_LUNS) 11720 continue; 11721 retval += ctl_do_lun_reset(lun, io, ua_type); 11722 } 11723 mtx_unlock(&softc->ctl_lock); 11724 io->taskio.task_status = CTL_TASK_FUNCTION_COMPLETE; 11725 return (retval); 11726} 11727 11728/* 11729 * The LUN should always be set. The I/O is optional, and is used to 11730 * distinguish between I/Os sent by this initiator, and by other 11731 * initiators. We set unit attention for initiators other than this one. 11732 * SAM-3 is vague on this point. It does say that a unit attention should 11733 * be established for other initiators when a LUN is reset (see section 11734 * 5.7.3), but it doesn't specifically say that the unit attention should 11735 * be established for this particular initiator when a LUN is reset. Here 11736 * is the relevant text, from SAM-3 rev 8: 11737 * 11738 * 5.7.2 When a SCSI initiator port aborts its own tasks 11739 * 11740 * When a SCSI initiator port causes its own task(s) to be aborted, no 11741 * notification that the task(s) have been aborted shall be returned to 11742 * the SCSI initiator port other than the completion response for the 11743 * command or task management function action that caused the task(s) to 11744 * be aborted and notification(s) associated with related effects of the 11745 * action (e.g., a reset unit attention condition). 11746 * 11747 * XXX KDM for now, we're setting unit attention for all initiators. 11748 */ 11749static int 11750ctl_do_lun_reset(struct ctl_lun *lun, union ctl_io *io, ctl_ua_type ua_type) 11751{ 11752 union ctl_io *xio; 11753#if 0 11754 uint32_t initidx; 11755#endif 11756#ifdef CTL_WITH_CA 11757 int i; 11758#endif 11759 11760 mtx_lock(&lun->lun_lock); 11761 /* 11762 * Run through the OOA queue and abort each I/O. 11763 */ 11764 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 11765 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 11766 xio->io_hdr.flags |= CTL_FLAG_ABORT | CTL_FLAG_ABORT_STATUS; 11767 } 11768 11769 /* 11770 * This version sets unit attention for every 11771 */ 11772#if 0 11773 initidx = ctl_get_initindex(&io->io_hdr.nexus); 11774 ctl_est_ua_all(lun, initidx, ua_type); 11775#else 11776 ctl_est_ua_all(lun, -1, ua_type); 11777#endif 11778 11779 /* 11780 * A reset (any kind, really) clears reservations established with 11781 * RESERVE/RELEASE. It does not clear reservations established 11782 * with PERSISTENT RESERVE OUT, but we don't support that at the 11783 * moment anyway. See SPC-2, section 5.6. SPC-3 doesn't address 11784 * reservations made with the RESERVE/RELEASE commands, because 11785 * those commands are obsolete in SPC-3. 11786 */ 11787 lun->flags &= ~CTL_LUN_RESERVED; 11788 11789#ifdef CTL_WITH_CA 11790 for (i = 0; i < CTL_MAX_INITIATORS; i++) 11791 ctl_clear_mask(lun->have_ca, i); 11792#endif 11793 mtx_unlock(&lun->lun_lock); 11794 11795 return (0); 11796} 11797 11798static int 11799ctl_lun_reset(struct ctl_softc *softc, union ctl_io *io) 11800{ 11801 struct ctl_lun *lun; 11802 uint32_t targ_lun; 11803 int retval; 11804 11805 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 11806 mtx_lock(&softc->ctl_lock); 11807 if ((targ_lun >= CTL_MAX_LUNS) || 11808 (lun = softc->ctl_luns[targ_lun]) == NULL) { 11809 mtx_unlock(&softc->ctl_lock); 11810 io->taskio.task_status = CTL_TASK_LUN_DOES_NOT_EXIST; 11811 return (1); 11812 } 11813 retval = ctl_do_lun_reset(lun, io, CTL_UA_LUN_RESET); 11814 mtx_unlock(&softc->ctl_lock); 11815 io->taskio.task_status = CTL_TASK_FUNCTION_COMPLETE; 11816 11817 if ((io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) == 0) { 11818 union ctl_ha_msg msg_info; 11819 11820 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 11821 msg_info.hdr.nexus = io->io_hdr.nexus; 11822 msg_info.task.task_action = CTL_TASK_LUN_RESET; 11823 msg_info.hdr.original_sc = NULL; 11824 msg_info.hdr.serializing_sc = NULL; 11825 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 11826 sizeof(msg_info.task), M_WAITOK); 11827 } 11828 return (retval); 11829} 11830 11831static void 11832ctl_abort_tasks_lun(struct ctl_lun *lun, uint32_t targ_port, uint32_t init_id, 11833 int other_sc) 11834{ 11835 union ctl_io *xio; 11836 11837 mtx_assert(&lun->lun_lock, MA_OWNED); 11838 11839 /* 11840 * Run through the OOA queue and attempt to find the given I/O. 11841 * The target port, initiator ID, tag type and tag number have to 11842 * match the values that we got from the initiator. If we have an 11843 * untagged command to abort, simply abort the first untagged command 11844 * we come to. We only allow one untagged command at a time of course. 11845 */ 11846 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 11847 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 11848 11849 if ((targ_port == UINT32_MAX || 11850 targ_port == xio->io_hdr.nexus.targ_port) && 11851 (init_id == UINT32_MAX || 11852 init_id == xio->io_hdr.nexus.initid)) { 11853 if (targ_port != xio->io_hdr.nexus.targ_port || 11854 init_id != xio->io_hdr.nexus.initid) 11855 xio->io_hdr.flags |= CTL_FLAG_ABORT_STATUS; 11856 xio->io_hdr.flags |= CTL_FLAG_ABORT; 11857 if (!other_sc && !(lun->flags & CTL_LUN_PRIMARY_SC)) { 11858 union ctl_ha_msg msg_info; 11859 11860 msg_info.hdr.nexus = xio->io_hdr.nexus; 11861 msg_info.task.task_action = CTL_TASK_ABORT_TASK; 11862 msg_info.task.tag_num = xio->scsiio.tag_num; 11863 msg_info.task.tag_type = xio->scsiio.tag_type; 11864 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 11865 msg_info.hdr.original_sc = NULL; 11866 msg_info.hdr.serializing_sc = NULL; 11867 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 11868 sizeof(msg_info.task), M_NOWAIT); 11869 } 11870 } 11871 } 11872} 11873 11874static int 11875ctl_abort_task_set(union ctl_io *io) 11876{ 11877 struct ctl_softc *softc = control_softc; 11878 struct ctl_lun *lun; 11879 uint32_t targ_lun; 11880 11881 /* 11882 * Look up the LUN. 11883 */ 11884 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 11885 mtx_lock(&softc->ctl_lock); 11886 if ((targ_lun >= CTL_MAX_LUNS) || 11887 (lun = softc->ctl_luns[targ_lun]) == NULL) { 11888 mtx_unlock(&softc->ctl_lock); 11889 io->taskio.task_status = CTL_TASK_LUN_DOES_NOT_EXIST; 11890 return (1); 11891 } 11892 11893 mtx_lock(&lun->lun_lock); 11894 mtx_unlock(&softc->ctl_lock); 11895 if (io->taskio.task_action == CTL_TASK_ABORT_TASK_SET) { 11896 ctl_abort_tasks_lun(lun, io->io_hdr.nexus.targ_port, 11897 io->io_hdr.nexus.initid, 11898 (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) != 0); 11899 } else { /* CTL_TASK_CLEAR_TASK_SET */ 11900 ctl_abort_tasks_lun(lun, UINT32_MAX, UINT32_MAX, 11901 (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) != 0); 11902 } 11903 mtx_unlock(&lun->lun_lock); 11904 io->taskio.task_status = CTL_TASK_FUNCTION_COMPLETE; 11905 return (0); 11906} 11907 11908static int 11909ctl_i_t_nexus_reset(union ctl_io *io) 11910{ 11911 struct ctl_softc *softc = control_softc; 11912 struct ctl_lun *lun; 11913 uint32_t initidx; 11914 11915 if (!(io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)) { 11916 union ctl_ha_msg msg_info; 11917 11918 msg_info.hdr.nexus = io->io_hdr.nexus; 11919 msg_info.task.task_action = CTL_TASK_I_T_NEXUS_RESET; 11920 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 11921 msg_info.hdr.original_sc = NULL; 11922 msg_info.hdr.serializing_sc = NULL; 11923 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 11924 sizeof(msg_info.task), M_WAITOK); 11925 } 11926 11927 initidx = ctl_get_initindex(&io->io_hdr.nexus); 11928 mtx_lock(&softc->ctl_lock); 11929 STAILQ_FOREACH(lun, &softc->lun_list, links) { 11930 mtx_lock(&lun->lun_lock); 11931 ctl_abort_tasks_lun(lun, io->io_hdr.nexus.targ_port, 11932 io->io_hdr.nexus.initid, 1); 11933#ifdef CTL_WITH_CA 11934 ctl_clear_mask(lun->have_ca, initidx); 11935#endif 11936 if ((lun->flags & CTL_LUN_RESERVED) && (lun->res_idx == initidx)) 11937 lun->flags &= ~CTL_LUN_RESERVED; 11938 ctl_est_ua(lun, initidx, CTL_UA_I_T_NEXUS_LOSS); 11939 mtx_unlock(&lun->lun_lock); 11940 } 11941 mtx_unlock(&softc->ctl_lock); 11942 io->taskio.task_status = CTL_TASK_FUNCTION_COMPLETE; 11943 return (0); 11944} 11945 11946static int 11947ctl_abort_task(union ctl_io *io) 11948{ 11949 union ctl_io *xio; 11950 struct ctl_lun *lun; 11951 struct ctl_softc *softc; 11952#if 0 11953 struct sbuf sb; 11954 char printbuf[128]; 11955#endif 11956 int found; 11957 uint32_t targ_lun; 11958 11959 softc = control_softc; 11960 found = 0; 11961 11962 /* 11963 * Look up the LUN. 11964 */ 11965 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 11966 mtx_lock(&softc->ctl_lock); 11967 if ((targ_lun >= CTL_MAX_LUNS) || 11968 (lun = softc->ctl_luns[targ_lun]) == NULL) { 11969 mtx_unlock(&softc->ctl_lock); 11970 io->taskio.task_status = CTL_TASK_LUN_DOES_NOT_EXIST; 11971 return (1); 11972 } 11973 11974#if 0 11975 printf("ctl_abort_task: called for lun %lld, tag %d type %d\n", 11976 lun->lun, io->taskio.tag_num, io->taskio.tag_type); 11977#endif 11978 11979 mtx_lock(&lun->lun_lock); 11980 mtx_unlock(&softc->ctl_lock); 11981 /* 11982 * Run through the OOA queue and attempt to find the given I/O. 11983 * The target port, initiator ID, tag type and tag number have to 11984 * match the values that we got from the initiator. If we have an 11985 * untagged command to abort, simply abort the first untagged command 11986 * we come to. We only allow one untagged command at a time of course. 11987 */ 11988 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 11989 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 11990#if 0 11991 sbuf_new(&sb, printbuf, sizeof(printbuf), SBUF_FIXEDLEN); 11992 11993 sbuf_printf(&sb, "LUN %lld tag %d type %d%s%s%s%s: ", 11994 lun->lun, xio->scsiio.tag_num, 11995 xio->scsiio.tag_type, 11996 (xio->io_hdr.blocked_links.tqe_prev 11997 == NULL) ? "" : " BLOCKED", 11998 (xio->io_hdr.flags & 11999 CTL_FLAG_DMA_INPROG) ? " DMA" : "", 12000 (xio->io_hdr.flags & 12001 CTL_FLAG_ABORT) ? " ABORT" : "", 12002 (xio->io_hdr.flags & 12003 CTL_FLAG_IS_WAS_ON_RTR ? " RTR" : "")); 12004 ctl_scsi_command_string(&xio->scsiio, NULL, &sb); 12005 sbuf_finish(&sb); 12006 printf("%s\n", sbuf_data(&sb)); 12007#endif 12008 12009 if ((xio->io_hdr.nexus.targ_port != io->io_hdr.nexus.targ_port) 12010 || (xio->io_hdr.nexus.initid != io->io_hdr.nexus.initid) 12011 || (xio->io_hdr.flags & CTL_FLAG_ABORT)) 12012 continue; 12013 12014 /* 12015 * If the abort says that the task is untagged, the 12016 * task in the queue must be untagged. Otherwise, 12017 * we just check to see whether the tag numbers 12018 * match. This is because the QLogic firmware 12019 * doesn't pass back the tag type in an abort 12020 * request. 12021 */ 12022#if 0 12023 if (((xio->scsiio.tag_type == CTL_TAG_UNTAGGED) 12024 && (io->taskio.tag_type == CTL_TAG_UNTAGGED)) 12025 || (xio->scsiio.tag_num == io->taskio.tag_num)) 12026#endif 12027 /* 12028 * XXX KDM we've got problems with FC, because it 12029 * doesn't send down a tag type with aborts. So we 12030 * can only really go by the tag number... 12031 * This may cause problems with parallel SCSI. 12032 * Need to figure that out!! 12033 */ 12034 if (xio->scsiio.tag_num == io->taskio.tag_num) { 12035 xio->io_hdr.flags |= CTL_FLAG_ABORT; 12036 found = 1; 12037 if ((io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) == 0 && 12038 !(lun->flags & CTL_LUN_PRIMARY_SC)) { 12039 union ctl_ha_msg msg_info; 12040 12041 msg_info.hdr.nexus = io->io_hdr.nexus; 12042 msg_info.task.task_action = CTL_TASK_ABORT_TASK; 12043 msg_info.task.tag_num = io->taskio.tag_num; 12044 msg_info.task.tag_type = io->taskio.tag_type; 12045 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 12046 msg_info.hdr.original_sc = NULL; 12047 msg_info.hdr.serializing_sc = NULL; 12048#if 0 12049 printf("Sent Abort to other side\n"); 12050#endif 12051 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 12052 sizeof(msg_info.task), M_NOWAIT); 12053 } 12054#if 0 12055 printf("ctl_abort_task: found I/O to abort\n"); 12056#endif 12057 } 12058 } 12059 mtx_unlock(&lun->lun_lock); 12060 12061 if (found == 0) { 12062 /* 12063 * This isn't really an error. It's entirely possible for 12064 * the abort and command completion to cross on the wire. 12065 * This is more of an informative/diagnostic error. 12066 */ 12067#if 0 12068 printf("ctl_abort_task: ABORT sent for nonexistent I/O: " 12069 "%u:%u:%u tag %d type %d\n", 12070 io->io_hdr.nexus.initid, 12071 io->io_hdr.nexus.targ_port, 12072 io->io_hdr.nexus.targ_lun, io->taskio.tag_num, 12073 io->taskio.tag_type); 12074#endif 12075 } 12076 io->taskio.task_status = CTL_TASK_FUNCTION_COMPLETE; 12077 return (0); 12078} 12079 12080static int 12081ctl_query_task(union ctl_io *io, int task_set) 12082{ 12083 union ctl_io *xio; 12084 struct ctl_lun *lun; 12085 struct ctl_softc *softc; 12086 int found = 0; 12087 uint32_t targ_lun; 12088 12089 softc = control_softc; 12090 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12091 mtx_lock(&softc->ctl_lock); 12092 if ((targ_lun >= CTL_MAX_LUNS) || 12093 (lun = softc->ctl_luns[targ_lun]) == NULL) { 12094 mtx_unlock(&softc->ctl_lock); 12095 io->taskio.task_status = CTL_TASK_LUN_DOES_NOT_EXIST; 12096 return (1); 12097 } 12098 mtx_lock(&lun->lun_lock); 12099 mtx_unlock(&softc->ctl_lock); 12100 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 12101 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 12102 12103 if ((xio->io_hdr.nexus.targ_port != io->io_hdr.nexus.targ_port) 12104 || (xio->io_hdr.nexus.initid != io->io_hdr.nexus.initid) 12105 || (xio->io_hdr.flags & CTL_FLAG_ABORT)) 12106 continue; 12107 12108 if (task_set || xio->scsiio.tag_num == io->taskio.tag_num) { 12109 found = 1; 12110 break; 12111 } 12112 } 12113 mtx_unlock(&lun->lun_lock); 12114 if (found) 12115 io->taskio.task_status = CTL_TASK_FUNCTION_SUCCEEDED; 12116 else 12117 io->taskio.task_status = CTL_TASK_FUNCTION_COMPLETE; 12118 return (0); 12119} 12120 12121static int 12122ctl_query_async_event(union ctl_io *io) 12123{ 12124 struct ctl_lun *lun; 12125 struct ctl_softc *softc; 12126 ctl_ua_type ua; 12127 uint32_t targ_lun, initidx; 12128 12129 softc = control_softc; 12130 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12131 mtx_lock(&softc->ctl_lock); 12132 if ((targ_lun >= CTL_MAX_LUNS) || 12133 (lun = softc->ctl_luns[targ_lun]) == NULL) { 12134 mtx_unlock(&softc->ctl_lock); 12135 io->taskio.task_status = CTL_TASK_LUN_DOES_NOT_EXIST; 12136 return (1); 12137 } 12138 mtx_lock(&lun->lun_lock); 12139 mtx_unlock(&softc->ctl_lock); 12140 initidx = ctl_get_initindex(&io->io_hdr.nexus); 12141 ua = ctl_build_qae(lun, initidx, io->taskio.task_resp); 12142 mtx_unlock(&lun->lun_lock); 12143 if (ua != CTL_UA_NONE) 12144 io->taskio.task_status = CTL_TASK_FUNCTION_SUCCEEDED; 12145 else 12146 io->taskio.task_status = CTL_TASK_FUNCTION_COMPLETE; 12147 return (0); 12148} 12149 12150static void 12151ctl_run_task(union ctl_io *io) 12152{ 12153 struct ctl_softc *softc = control_softc; 12154 int retval = 1; 12155 12156 CTL_DEBUG_PRINT(("ctl_run_task\n")); 12157 KASSERT(io->io_hdr.io_type == CTL_IO_TASK, 12158 ("ctl_run_task: Unextected io_type %d\n", io->io_hdr.io_type)); 12159 io->taskio.task_status = CTL_TASK_FUNCTION_NOT_SUPPORTED; 12160 bzero(io->taskio.task_resp, sizeof(io->taskio.task_resp)); 12161 switch (io->taskio.task_action) { 12162 case CTL_TASK_ABORT_TASK: 12163 retval = ctl_abort_task(io); 12164 break; 12165 case CTL_TASK_ABORT_TASK_SET: 12166 case CTL_TASK_CLEAR_TASK_SET: 12167 retval = ctl_abort_task_set(io); 12168 break; 12169 case CTL_TASK_CLEAR_ACA: 12170 break; 12171 case CTL_TASK_I_T_NEXUS_RESET: 12172 retval = ctl_i_t_nexus_reset(io); 12173 break; 12174 case CTL_TASK_LUN_RESET: 12175 retval = ctl_lun_reset(softc, io); 12176 break; 12177 case CTL_TASK_TARGET_RESET: 12178 retval = ctl_target_reset(softc, io, CTL_UA_TARG_RESET); 12179 break; 12180 case CTL_TASK_BUS_RESET: 12181 retval = ctl_bus_reset(softc, io); 12182 break; 12183 case CTL_TASK_PORT_LOGIN: 12184 break; 12185 case CTL_TASK_PORT_LOGOUT: 12186 break; 12187 case CTL_TASK_QUERY_TASK: 12188 retval = ctl_query_task(io, 0); 12189 break; 12190 case CTL_TASK_QUERY_TASK_SET: 12191 retval = ctl_query_task(io, 1); 12192 break; 12193 case CTL_TASK_QUERY_ASYNC_EVENT: 12194 retval = ctl_query_async_event(io); 12195 break; 12196 default: 12197 printf("%s: got unknown task management event %d\n", 12198 __func__, io->taskio.task_action); 12199 break; 12200 } 12201 if (retval == 0) 12202 io->io_hdr.status = CTL_SUCCESS; 12203 else 12204 io->io_hdr.status = CTL_ERROR; 12205 ctl_done(io); 12206} 12207 12208/* 12209 * For HA operation. Handle commands that come in from the other 12210 * controller. 12211 */ 12212static void 12213ctl_handle_isc(union ctl_io *io) 12214{ 12215 int free_io; 12216 struct ctl_lun *lun; 12217 struct ctl_softc *softc = control_softc; 12218 uint32_t targ_lun; 12219 12220 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12221 lun = softc->ctl_luns[targ_lun]; 12222 12223 switch (io->io_hdr.msg_type) { 12224 case CTL_MSG_SERIALIZE: 12225 free_io = ctl_serialize_other_sc_cmd(&io->scsiio); 12226 break; 12227 case CTL_MSG_R2R: { 12228 const struct ctl_cmd_entry *entry; 12229 12230 /* 12231 * This is only used in SER_ONLY mode. 12232 */ 12233 free_io = 0; 12234 entry = ctl_get_cmd_entry(&io->scsiio, NULL); 12235 mtx_lock(&lun->lun_lock); 12236 if (ctl_scsiio_lun_check(lun, 12237 entry, (struct ctl_scsiio *)io) != 0) { 12238 mtx_unlock(&lun->lun_lock); 12239 ctl_done(io); 12240 break; 12241 } 12242 io->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 12243 mtx_unlock(&lun->lun_lock); 12244 ctl_enqueue_rtr(io); 12245 break; 12246 } 12247 case CTL_MSG_FINISH_IO: 12248 if (softc->ha_mode == CTL_HA_MODE_XFER) { 12249 free_io = 0; 12250 ctl_done(io); 12251 } else { 12252 free_io = 1; 12253 mtx_lock(&lun->lun_lock); 12254 TAILQ_REMOVE(&lun->ooa_queue, &io->io_hdr, 12255 ooa_links); 12256 ctl_check_blocked(lun); 12257 mtx_unlock(&lun->lun_lock); 12258 } 12259 break; 12260 case CTL_MSG_PERS_ACTION: 12261 ctl_hndl_per_res_out_on_other_sc( 12262 (union ctl_ha_msg *)&io->presio.pr_msg); 12263 free_io = 1; 12264 break; 12265 case CTL_MSG_BAD_JUJU: 12266 free_io = 0; 12267 ctl_done(io); 12268 break; 12269 case CTL_MSG_DATAMOVE: 12270 /* Only used in XFER mode */ 12271 free_io = 0; 12272 ctl_datamove_remote(io); 12273 break; 12274 case CTL_MSG_DATAMOVE_DONE: 12275 /* Only used in XFER mode */ 12276 free_io = 0; 12277 io->scsiio.be_move_done(io); 12278 break; 12279 case CTL_MSG_FAILOVER: 12280 ctl_failover_lun(io); 12281 free_io = 1; 12282 break; 12283 default: 12284 free_io = 1; 12285 printf("%s: Invalid message type %d\n", 12286 __func__, io->io_hdr.msg_type); 12287 break; 12288 } 12289 if (free_io) 12290 ctl_free_io(io); 12291 12292} 12293 12294 12295/* 12296 * Returns the match type in the case of a match, or CTL_LUN_PAT_NONE if 12297 * there is no match. 12298 */ 12299static ctl_lun_error_pattern 12300ctl_cmd_pattern_match(struct ctl_scsiio *ctsio, struct ctl_error_desc *desc) 12301{ 12302 const struct ctl_cmd_entry *entry; 12303 ctl_lun_error_pattern filtered_pattern, pattern; 12304 12305 pattern = desc->error_pattern; 12306 12307 /* 12308 * XXX KDM we need more data passed into this function to match a 12309 * custom pattern, and we actually need to implement custom pattern 12310 * matching. 12311 */ 12312 if (pattern & CTL_LUN_PAT_CMD) 12313 return (CTL_LUN_PAT_CMD); 12314 12315 if ((pattern & CTL_LUN_PAT_MASK) == CTL_LUN_PAT_ANY) 12316 return (CTL_LUN_PAT_ANY); 12317 12318 entry = ctl_get_cmd_entry(ctsio, NULL); 12319 12320 filtered_pattern = entry->pattern & pattern; 12321 12322 /* 12323 * If the user requested specific flags in the pattern (e.g. 12324 * CTL_LUN_PAT_RANGE), make sure the command supports all of those 12325 * flags. 12326 * 12327 * If the user did not specify any flags, it doesn't matter whether 12328 * or not the command supports the flags. 12329 */ 12330 if ((filtered_pattern & ~CTL_LUN_PAT_MASK) != 12331 (pattern & ~CTL_LUN_PAT_MASK)) 12332 return (CTL_LUN_PAT_NONE); 12333 12334 /* 12335 * If the user asked for a range check, see if the requested LBA 12336 * range overlaps with this command's LBA range. 12337 */ 12338 if (filtered_pattern & CTL_LUN_PAT_RANGE) { 12339 uint64_t lba1; 12340 uint64_t len1; 12341 ctl_action action; 12342 int retval; 12343 12344 retval = ctl_get_lba_len((union ctl_io *)ctsio, &lba1, &len1); 12345 if (retval != 0) 12346 return (CTL_LUN_PAT_NONE); 12347 12348 action = ctl_extent_check_lba(lba1, len1, desc->lba_range.lba, 12349 desc->lba_range.len, FALSE); 12350 /* 12351 * A "pass" means that the LBA ranges don't overlap, so 12352 * this doesn't match the user's range criteria. 12353 */ 12354 if (action == CTL_ACTION_PASS) 12355 return (CTL_LUN_PAT_NONE); 12356 } 12357 12358 return (filtered_pattern); 12359} 12360 12361static void 12362ctl_inject_error(struct ctl_lun *lun, union ctl_io *io) 12363{ 12364 struct ctl_error_desc *desc, *desc2; 12365 12366 mtx_assert(&lun->lun_lock, MA_OWNED); 12367 12368 STAILQ_FOREACH_SAFE(desc, &lun->error_list, links, desc2) { 12369 ctl_lun_error_pattern pattern; 12370 /* 12371 * Check to see whether this particular command matches 12372 * the pattern in the descriptor. 12373 */ 12374 pattern = ctl_cmd_pattern_match(&io->scsiio, desc); 12375 if ((pattern & CTL_LUN_PAT_MASK) == CTL_LUN_PAT_NONE) 12376 continue; 12377 12378 switch (desc->lun_error & CTL_LUN_INJ_TYPE) { 12379 case CTL_LUN_INJ_ABORTED: 12380 ctl_set_aborted(&io->scsiio); 12381 break; 12382 case CTL_LUN_INJ_MEDIUM_ERR: 12383 ctl_set_medium_error(&io->scsiio, 12384 (io->io_hdr.flags & CTL_FLAG_DATA_MASK) != 12385 CTL_FLAG_DATA_OUT); 12386 break; 12387 case CTL_LUN_INJ_UA: 12388 /* 29h/00h POWER ON, RESET, OR BUS DEVICE RESET 12389 * OCCURRED */ 12390 ctl_set_ua(&io->scsiio, 0x29, 0x00); 12391 break; 12392 case CTL_LUN_INJ_CUSTOM: 12393 /* 12394 * We're assuming the user knows what he is doing. 12395 * Just copy the sense information without doing 12396 * checks. 12397 */ 12398 bcopy(&desc->custom_sense, &io->scsiio.sense_data, 12399 MIN(sizeof(desc->custom_sense), 12400 sizeof(io->scsiio.sense_data))); 12401 io->scsiio.scsi_status = SCSI_STATUS_CHECK_COND; 12402 io->scsiio.sense_len = SSD_FULL_SIZE; 12403 io->io_hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 12404 break; 12405 case CTL_LUN_INJ_NONE: 12406 default: 12407 /* 12408 * If this is an error injection type we don't know 12409 * about, clear the continuous flag (if it is set) 12410 * so it will get deleted below. 12411 */ 12412 desc->lun_error &= ~CTL_LUN_INJ_CONTINUOUS; 12413 break; 12414 } 12415 /* 12416 * By default, each error injection action is a one-shot 12417 */ 12418 if (desc->lun_error & CTL_LUN_INJ_CONTINUOUS) 12419 continue; 12420 12421 STAILQ_REMOVE(&lun->error_list, desc, ctl_error_desc, links); 12422 12423 free(desc, M_CTL); 12424 } 12425} 12426 12427#ifdef CTL_IO_DELAY 12428static void 12429ctl_datamove_timer_wakeup(void *arg) 12430{ 12431 union ctl_io *io; 12432 12433 io = (union ctl_io *)arg; 12434 12435 ctl_datamove(io); 12436} 12437#endif /* CTL_IO_DELAY */ 12438 12439void 12440ctl_datamove(union ctl_io *io) 12441{ 12442 struct ctl_lun *lun; 12443 void (*fe_datamove)(union ctl_io *io); 12444 12445 mtx_assert(&control_softc->ctl_lock, MA_NOTOWNED); 12446 12447 CTL_DEBUG_PRINT(("ctl_datamove\n")); 12448 12449 lun = (struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 12450#ifdef CTL_TIME_IO 12451 if ((time_uptime - io->io_hdr.start_time) > ctl_time_io_secs) { 12452 char str[256]; 12453 char path_str[64]; 12454 struct sbuf sb; 12455 12456 ctl_scsi_path_string(io, path_str, sizeof(path_str)); 12457 sbuf_new(&sb, str, sizeof(str), SBUF_FIXEDLEN); 12458 12459 sbuf_cat(&sb, path_str); 12460 switch (io->io_hdr.io_type) { 12461 case CTL_IO_SCSI: 12462 ctl_scsi_command_string(&io->scsiio, NULL, &sb); 12463 sbuf_printf(&sb, "\n"); 12464 sbuf_cat(&sb, path_str); 12465 sbuf_printf(&sb, "Tag: 0x%04x, type %d\n", 12466 io->scsiio.tag_num, io->scsiio.tag_type); 12467 break; 12468 case CTL_IO_TASK: 12469 sbuf_printf(&sb, "Task I/O type: %d, Tag: 0x%04x, " 12470 "Tag Type: %d\n", io->taskio.task_action, 12471 io->taskio.tag_num, io->taskio.tag_type); 12472 break; 12473 default: 12474 printf("Invalid CTL I/O type %d\n", io->io_hdr.io_type); 12475 panic("Invalid CTL I/O type %d\n", io->io_hdr.io_type); 12476 break; 12477 } 12478 sbuf_cat(&sb, path_str); 12479 sbuf_printf(&sb, "ctl_datamove: %jd seconds\n", 12480 (intmax_t)time_uptime - io->io_hdr.start_time); 12481 sbuf_finish(&sb); 12482 printf("%s", sbuf_data(&sb)); 12483 } 12484#endif /* CTL_TIME_IO */ 12485 12486#ifdef CTL_IO_DELAY 12487 if (io->io_hdr.flags & CTL_FLAG_DELAY_DONE) { 12488 io->io_hdr.flags &= ~CTL_FLAG_DELAY_DONE; 12489 } else { 12490 if ((lun != NULL) 12491 && (lun->delay_info.datamove_delay > 0)) { 12492 12493 callout_init(&io->io_hdr.delay_callout, /*mpsafe*/ 1); 12494 io->io_hdr.flags |= CTL_FLAG_DELAY_DONE; 12495 callout_reset(&io->io_hdr.delay_callout, 12496 lun->delay_info.datamove_delay * hz, 12497 ctl_datamove_timer_wakeup, io); 12498 if (lun->delay_info.datamove_type == 12499 CTL_DELAY_TYPE_ONESHOT) 12500 lun->delay_info.datamove_delay = 0; 12501 return; 12502 } 12503 } 12504#endif 12505 12506 /* 12507 * This command has been aborted. Set the port status, so we fail 12508 * the data move. 12509 */ 12510 if (io->io_hdr.flags & CTL_FLAG_ABORT) { 12511 printf("ctl_datamove: tag 0x%04x on (%u:%u:%u) aborted\n", 12512 io->scsiio.tag_num, io->io_hdr.nexus.initid, 12513 io->io_hdr.nexus.targ_port, 12514 io->io_hdr.nexus.targ_lun); 12515 io->io_hdr.port_status = 31337; 12516 /* 12517 * Note that the backend, in this case, will get the 12518 * callback in its context. In other cases it may get 12519 * called in the frontend's interrupt thread context. 12520 */ 12521 io->scsiio.be_move_done(io); 12522 return; 12523 } 12524 12525 /* Don't confuse frontend with zero length data move. */ 12526 if (io->scsiio.kern_data_len == 0) { 12527 io->scsiio.be_move_done(io); 12528 return; 12529 } 12530 12531 fe_datamove = ctl_io_port(&io->io_hdr)->fe_datamove; 12532 fe_datamove(io); 12533} 12534 12535static void 12536ctl_send_datamove_done(union ctl_io *io, int have_lock) 12537{ 12538 union ctl_ha_msg msg; 12539#ifdef CTL_TIME_IO 12540 struct bintime cur_bt; 12541#endif 12542 12543 memset(&msg, 0, sizeof(msg)); 12544 msg.hdr.msg_type = CTL_MSG_DATAMOVE_DONE; 12545 msg.hdr.original_sc = io; 12546 msg.hdr.serializing_sc = io->io_hdr.serializing_sc; 12547 msg.hdr.nexus = io->io_hdr.nexus; 12548 msg.hdr.status = io->io_hdr.status; 12549 msg.scsi.tag_num = io->scsiio.tag_num; 12550 msg.scsi.tag_type = io->scsiio.tag_type; 12551 msg.scsi.scsi_status = io->scsiio.scsi_status; 12552 memcpy(&msg.scsi.sense_data, &io->scsiio.sense_data, 12553 io->scsiio.sense_len); 12554 msg.scsi.sense_len = io->scsiio.sense_len; 12555 msg.scsi.sense_residual = io->scsiio.sense_residual; 12556 msg.scsi.fetd_status = io->io_hdr.port_status; 12557 msg.scsi.residual = io->scsiio.residual; 12558 io->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 12559 if (io->io_hdr.flags & CTL_FLAG_FAILOVER) { 12560 ctl_failover_io(io, /*have_lock*/ have_lock); 12561 return; 12562 } 12563 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, 12564 sizeof(msg.scsi) - sizeof(msg.scsi.sense_data) + 12565 msg.scsi.sense_len, M_WAITOK); 12566 12567#ifdef CTL_TIME_IO 12568 getbinuptime(&cur_bt); 12569 bintime_sub(&cur_bt, &io->io_hdr.dma_start_bt); 12570 bintime_add(&io->io_hdr.dma_bt, &cur_bt); 12571#endif 12572 io->io_hdr.num_dmas++; 12573} 12574 12575/* 12576 * The DMA to the remote side is done, now we need to tell the other side 12577 * we're done so it can continue with its data movement. 12578 */ 12579static void 12580ctl_datamove_remote_write_cb(struct ctl_ha_dt_req *rq) 12581{ 12582 union ctl_io *io; 12583 int i; 12584 12585 io = rq->context; 12586 12587 if (rq->ret != CTL_HA_STATUS_SUCCESS) { 12588 printf("%s: ISC DMA write failed with error %d", __func__, 12589 rq->ret); 12590 ctl_set_internal_failure(&io->scsiio, 12591 /*sks_valid*/ 1, 12592 /*retry_count*/ rq->ret); 12593 } 12594 12595 ctl_dt_req_free(rq); 12596 12597 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 12598 free(io->io_hdr.local_sglist[i].addr, M_CTL); 12599 free(io->io_hdr.remote_sglist, M_CTL); 12600 io->io_hdr.remote_sglist = NULL; 12601 io->io_hdr.local_sglist = NULL; 12602 12603 /* 12604 * The data is in local and remote memory, so now we need to send 12605 * status (good or back) back to the other side. 12606 */ 12607 ctl_send_datamove_done(io, /*have_lock*/ 0); 12608} 12609 12610/* 12611 * We've moved the data from the host/controller into local memory. Now we 12612 * need to push it over to the remote controller's memory. 12613 */ 12614static int 12615ctl_datamove_remote_dm_write_cb(union ctl_io *io) 12616{ 12617 int retval; 12618 12619 retval = ctl_datamove_remote_xfer(io, CTL_HA_DT_CMD_WRITE, 12620 ctl_datamove_remote_write_cb); 12621 return (retval); 12622} 12623 12624static void 12625ctl_datamove_remote_write(union ctl_io *io) 12626{ 12627 int retval; 12628 void (*fe_datamove)(union ctl_io *io); 12629 12630 /* 12631 * - Get the data from the host/HBA into local memory. 12632 * - DMA memory from the local controller to the remote controller. 12633 * - Send status back to the remote controller. 12634 */ 12635 12636 retval = ctl_datamove_remote_sgl_setup(io); 12637 if (retval != 0) 12638 return; 12639 12640 /* Switch the pointer over so the FETD knows what to do */ 12641 io->scsiio.kern_data_ptr = (uint8_t *)io->io_hdr.local_sglist; 12642 12643 /* 12644 * Use a custom move done callback, since we need to send completion 12645 * back to the other controller, not to the backend on this side. 12646 */ 12647 io->scsiio.be_move_done = ctl_datamove_remote_dm_write_cb; 12648 12649 fe_datamove = ctl_io_port(&io->io_hdr)->fe_datamove; 12650 fe_datamove(io); 12651} 12652 12653static int 12654ctl_datamove_remote_dm_read_cb(union ctl_io *io) 12655{ 12656#if 0 12657 char str[256]; 12658 char path_str[64]; 12659 struct sbuf sb; 12660#endif 12661 int i; 12662 12663 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 12664 free(io->io_hdr.local_sglist[i].addr, M_CTL); 12665 free(io->io_hdr.remote_sglist, M_CTL); 12666 io->io_hdr.remote_sglist = NULL; 12667 io->io_hdr.local_sglist = NULL; 12668 12669#if 0 12670 scsi_path_string(io, path_str, sizeof(path_str)); 12671 sbuf_new(&sb, str, sizeof(str), SBUF_FIXEDLEN); 12672 sbuf_cat(&sb, path_str); 12673 scsi_command_string(&io->scsiio, NULL, &sb); 12674 sbuf_printf(&sb, "\n"); 12675 sbuf_cat(&sb, path_str); 12676 sbuf_printf(&sb, "Tag: 0x%04x, type %d\n", 12677 io->scsiio.tag_num, io->scsiio.tag_type); 12678 sbuf_cat(&sb, path_str); 12679 sbuf_printf(&sb, "%s: flags %#x, status %#x\n", __func__, 12680 io->io_hdr.flags, io->io_hdr.status); 12681 sbuf_finish(&sb); 12682 printk("%s", sbuf_data(&sb)); 12683#endif 12684 12685 12686 /* 12687 * The read is done, now we need to send status (good or bad) back 12688 * to the other side. 12689 */ 12690 ctl_send_datamove_done(io, /*have_lock*/ 0); 12691 12692 return (0); 12693} 12694 12695static void 12696ctl_datamove_remote_read_cb(struct ctl_ha_dt_req *rq) 12697{ 12698 union ctl_io *io; 12699 void (*fe_datamove)(union ctl_io *io); 12700 12701 io = rq->context; 12702 12703 if (rq->ret != CTL_HA_STATUS_SUCCESS) { 12704 printf("%s: ISC DMA read failed with error %d\n", __func__, 12705 rq->ret); 12706 ctl_set_internal_failure(&io->scsiio, 12707 /*sks_valid*/ 1, 12708 /*retry_count*/ rq->ret); 12709 } 12710 12711 ctl_dt_req_free(rq); 12712 12713 /* Switch the pointer over so the FETD knows what to do */ 12714 io->scsiio.kern_data_ptr = (uint8_t *)io->io_hdr.local_sglist; 12715 12716 /* 12717 * Use a custom move done callback, since we need to send completion 12718 * back to the other controller, not to the backend on this side. 12719 */ 12720 io->scsiio.be_move_done = ctl_datamove_remote_dm_read_cb; 12721 12722 /* XXX KDM add checks like the ones in ctl_datamove? */ 12723 12724 fe_datamove = ctl_io_port(&io->io_hdr)->fe_datamove; 12725 fe_datamove(io); 12726} 12727 12728static int 12729ctl_datamove_remote_sgl_setup(union ctl_io *io) 12730{ 12731 struct ctl_sg_entry *local_sglist; 12732 uint32_t len_to_go; 12733 int retval; 12734 int i; 12735 12736 retval = 0; 12737 local_sglist = io->io_hdr.local_sglist; 12738 len_to_go = io->scsiio.kern_data_len; 12739 12740 /* 12741 * The difficult thing here is that the size of the various 12742 * S/G segments may be different than the size from the 12743 * remote controller. That'll make it harder when DMAing 12744 * the data back to the other side. 12745 */ 12746 for (i = 0; len_to_go > 0; i++) { 12747 local_sglist[i].len = MIN(len_to_go, CTL_HA_DATAMOVE_SEGMENT); 12748 local_sglist[i].addr = 12749 malloc(local_sglist[i].len, M_CTL, M_WAITOK); 12750 12751 len_to_go -= local_sglist[i].len; 12752 } 12753 /* 12754 * Reset the number of S/G entries accordingly. The original 12755 * number of S/G entries is available in rem_sg_entries. 12756 */ 12757 io->scsiio.kern_sg_entries = i; 12758 12759#if 0 12760 printf("%s: kern_sg_entries = %d\n", __func__, 12761 io->scsiio.kern_sg_entries); 12762 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 12763 printf("%s: sg[%d] = %p, %lu\n", __func__, i, 12764 local_sglist[i].addr, local_sglist[i].len); 12765#endif 12766 12767 return (retval); 12768} 12769 12770static int 12771ctl_datamove_remote_xfer(union ctl_io *io, unsigned command, 12772 ctl_ha_dt_cb callback) 12773{ 12774 struct ctl_ha_dt_req *rq; 12775 struct ctl_sg_entry *remote_sglist, *local_sglist; 12776 uint32_t local_used, remote_used, total_used; 12777 int i, j, isc_ret; 12778 12779 rq = ctl_dt_req_alloc(); 12780 12781 /* 12782 * If we failed to allocate the request, and if the DMA didn't fail 12783 * anyway, set busy status. This is just a resource allocation 12784 * failure. 12785 */ 12786 if ((rq == NULL) 12787 && ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE && 12788 (io->io_hdr.status & CTL_STATUS_MASK) != CTL_SUCCESS)) 12789 ctl_set_busy(&io->scsiio); 12790 12791 if ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE && 12792 (io->io_hdr.status & CTL_STATUS_MASK) != CTL_SUCCESS) { 12793 12794 if (rq != NULL) 12795 ctl_dt_req_free(rq); 12796 12797 /* 12798 * The data move failed. We need to return status back 12799 * to the other controller. No point in trying to DMA 12800 * data to the remote controller. 12801 */ 12802 12803 ctl_send_datamove_done(io, /*have_lock*/ 0); 12804 12805 return (1); 12806 } 12807 12808 local_sglist = io->io_hdr.local_sglist; 12809 remote_sglist = io->io_hdr.remote_sglist; 12810 local_used = 0; 12811 remote_used = 0; 12812 total_used = 0; 12813 12814 /* 12815 * Pull/push the data over the wire from/to the other controller. 12816 * This takes into account the possibility that the local and 12817 * remote sglists may not be identical in terms of the size of 12818 * the elements and the number of elements. 12819 * 12820 * One fundamental assumption here is that the length allocated for 12821 * both the local and remote sglists is identical. Otherwise, we've 12822 * essentially got a coding error of some sort. 12823 */ 12824 isc_ret = CTL_HA_STATUS_SUCCESS; 12825 for (i = 0, j = 0; total_used < io->scsiio.kern_data_len; ) { 12826 uint32_t cur_len; 12827 uint8_t *tmp_ptr; 12828 12829 rq->command = command; 12830 rq->context = io; 12831 12832 /* 12833 * Both pointers should be aligned. But it is possible 12834 * that the allocation length is not. They should both 12835 * also have enough slack left over at the end, though, 12836 * to round up to the next 8 byte boundary. 12837 */ 12838 cur_len = MIN(local_sglist[i].len - local_used, 12839 remote_sglist[j].len - remote_used); 12840 rq->size = cur_len; 12841 12842 tmp_ptr = (uint8_t *)local_sglist[i].addr; 12843 tmp_ptr += local_used; 12844 12845#if 0 12846 /* Use physical addresses when talking to ISC hardware */ 12847 if ((io->io_hdr.flags & CTL_FLAG_BUS_ADDR) == 0) { 12848 /* XXX KDM use busdma */ 12849 rq->local = vtophys(tmp_ptr); 12850 } else 12851 rq->local = tmp_ptr; 12852#else 12853 KASSERT((io->io_hdr.flags & CTL_FLAG_BUS_ADDR) == 0, 12854 ("HA does not support BUS_ADDR")); 12855 rq->local = tmp_ptr; 12856#endif 12857 12858 tmp_ptr = (uint8_t *)remote_sglist[j].addr; 12859 tmp_ptr += remote_used; 12860 rq->remote = tmp_ptr; 12861 12862 rq->callback = NULL; 12863 12864 local_used += cur_len; 12865 if (local_used >= local_sglist[i].len) { 12866 i++; 12867 local_used = 0; 12868 } 12869 12870 remote_used += cur_len; 12871 if (remote_used >= remote_sglist[j].len) { 12872 j++; 12873 remote_used = 0; 12874 } 12875 total_used += cur_len; 12876 12877 if (total_used >= io->scsiio.kern_data_len) 12878 rq->callback = callback; 12879 12880#if 0 12881 printf("%s: %s: local %p remote %p size %d\n", __func__, 12882 (command == CTL_HA_DT_CMD_WRITE) ? "WRITE" : "READ", 12883 rq->local, rq->remote, rq->size); 12884#endif 12885 12886 isc_ret = ctl_dt_single(rq); 12887 if (isc_ret > CTL_HA_STATUS_SUCCESS) 12888 break; 12889 } 12890 if (isc_ret != CTL_HA_STATUS_WAIT) { 12891 rq->ret = isc_ret; 12892 callback(rq); 12893 } 12894 12895 return (0); 12896} 12897 12898static void 12899ctl_datamove_remote_read(union ctl_io *io) 12900{ 12901 int retval; 12902 int i; 12903 12904 /* 12905 * This will send an error to the other controller in the case of a 12906 * failure. 12907 */ 12908 retval = ctl_datamove_remote_sgl_setup(io); 12909 if (retval != 0) 12910 return; 12911 12912 retval = ctl_datamove_remote_xfer(io, CTL_HA_DT_CMD_READ, 12913 ctl_datamove_remote_read_cb); 12914 if (retval != 0) { 12915 /* 12916 * Make sure we free memory if there was an error.. The 12917 * ctl_datamove_remote_xfer() function will send the 12918 * datamove done message, or call the callback with an 12919 * error if there is a problem. 12920 */ 12921 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 12922 free(io->io_hdr.local_sglist[i].addr, M_CTL); 12923 free(io->io_hdr.remote_sglist, M_CTL); 12924 io->io_hdr.remote_sglist = NULL; 12925 io->io_hdr.local_sglist = NULL; 12926 } 12927} 12928 12929/* 12930 * Process a datamove request from the other controller. This is used for 12931 * XFER mode only, not SER_ONLY mode. For writes, we DMA into local memory 12932 * first. Once that is complete, the data gets DMAed into the remote 12933 * controller's memory. For reads, we DMA from the remote controller's 12934 * memory into our memory first, and then move it out to the FETD. 12935 */ 12936static void 12937ctl_datamove_remote(union ctl_io *io) 12938{ 12939 12940 mtx_assert(&control_softc->ctl_lock, MA_NOTOWNED); 12941 12942 if (io->io_hdr.flags & CTL_FLAG_FAILOVER) { 12943 ctl_failover_io(io, /*have_lock*/ 0); 12944 return; 12945 } 12946 12947 /* 12948 * Note that we look for an aborted I/O here, but don't do some of 12949 * the other checks that ctl_datamove() normally does. 12950 * We don't need to run the datamove delay code, since that should 12951 * have been done if need be on the other controller. 12952 */ 12953 if (io->io_hdr.flags & CTL_FLAG_ABORT) { 12954 printf("%s: tag 0x%04x on (%u:%u:%u) aborted\n", __func__, 12955 io->scsiio.tag_num, io->io_hdr.nexus.initid, 12956 io->io_hdr.nexus.targ_port, 12957 io->io_hdr.nexus.targ_lun); 12958 io->io_hdr.port_status = 31338; 12959 ctl_send_datamove_done(io, /*have_lock*/ 0); 12960 return; 12961 } 12962 12963 if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_OUT) 12964 ctl_datamove_remote_write(io); 12965 else if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_IN) 12966 ctl_datamove_remote_read(io); 12967 else { 12968 io->io_hdr.port_status = 31339; 12969 ctl_send_datamove_done(io, /*have_lock*/ 0); 12970 } 12971} 12972 12973static void 12974ctl_process_done(union ctl_io *io) 12975{ 12976 struct ctl_lun *lun; 12977 struct ctl_softc *softc = control_softc; 12978 void (*fe_done)(union ctl_io *io); 12979 union ctl_ha_msg msg; 12980 uint32_t targ_port = io->io_hdr.nexus.targ_port; 12981 12982 CTL_DEBUG_PRINT(("ctl_process_done\n")); 12983 fe_done = softc->ctl_ports[targ_port]->fe_done; 12984 12985#ifdef CTL_TIME_IO 12986 if ((time_uptime - io->io_hdr.start_time) > ctl_time_io_secs) { 12987 char str[256]; 12988 char path_str[64]; 12989 struct sbuf sb; 12990 12991 ctl_scsi_path_string(io, path_str, sizeof(path_str)); 12992 sbuf_new(&sb, str, sizeof(str), SBUF_FIXEDLEN); 12993 12994 sbuf_cat(&sb, path_str); 12995 switch (io->io_hdr.io_type) { 12996 case CTL_IO_SCSI: 12997 ctl_scsi_command_string(&io->scsiio, NULL, &sb); 12998 sbuf_printf(&sb, "\n"); 12999 sbuf_cat(&sb, path_str); 13000 sbuf_printf(&sb, "Tag: 0x%04x, type %d\n", 13001 io->scsiio.tag_num, io->scsiio.tag_type); 13002 break; 13003 case CTL_IO_TASK: 13004 sbuf_printf(&sb, "Task I/O type: %d, Tag: 0x%04x, " 13005 "Tag Type: %d\n", io->taskio.task_action, 13006 io->taskio.tag_num, io->taskio.tag_type); 13007 break; 13008 default: 13009 printf("Invalid CTL I/O type %d\n", io->io_hdr.io_type); 13010 panic("Invalid CTL I/O type %d\n", io->io_hdr.io_type); 13011 break; 13012 } 13013 sbuf_cat(&sb, path_str); 13014 sbuf_printf(&sb, "ctl_process_done: %jd seconds\n", 13015 (intmax_t)time_uptime - io->io_hdr.start_time); 13016 sbuf_finish(&sb); 13017 printf("%s", sbuf_data(&sb)); 13018 } 13019#endif /* CTL_TIME_IO */ 13020 13021 switch (io->io_hdr.io_type) { 13022 case CTL_IO_SCSI: 13023 break; 13024 case CTL_IO_TASK: 13025 if (ctl_debug & CTL_DEBUG_INFO) 13026 ctl_io_error_print(io, NULL); 13027 fe_done(io); 13028 return; 13029 default: 13030 panic("ctl_process_done: invalid io type %d\n", 13031 io->io_hdr.io_type); 13032 break; /* NOTREACHED */ 13033 } 13034 13035 lun = (struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 13036 if (lun == NULL) { 13037 CTL_DEBUG_PRINT(("NULL LUN for lun %d\n", 13038 io->io_hdr.nexus.targ_mapped_lun)); 13039 goto bailout; 13040 } 13041 13042 mtx_lock(&lun->lun_lock); 13043 13044 /* 13045 * Check to see if we have any errors to inject here. We only 13046 * inject errors for commands that don't already have errors set. 13047 */ 13048 if ((STAILQ_FIRST(&lun->error_list) != NULL) && 13049 ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS) && 13050 ((io->io_hdr.flags & CTL_FLAG_STATUS_SENT) == 0)) 13051 ctl_inject_error(lun, io); 13052 13053 /* 13054 * XXX KDM how do we treat commands that aren't completed 13055 * successfully? 13056 * 13057 * XXX KDM should we also track I/O latency? 13058 */ 13059 if ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS && 13060 io->io_hdr.io_type == CTL_IO_SCSI) { 13061#ifdef CTL_TIME_IO 13062 struct bintime cur_bt; 13063#endif 13064 int type; 13065 13066 if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == 13067 CTL_FLAG_DATA_IN) 13068 type = CTL_STATS_READ; 13069 else if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == 13070 CTL_FLAG_DATA_OUT) 13071 type = CTL_STATS_WRITE; 13072 else 13073 type = CTL_STATS_NO_IO; 13074 13075 lun->stats.ports[targ_port].bytes[type] += 13076 io->scsiio.kern_total_len; 13077 lun->stats.ports[targ_port].operations[type]++; 13078#ifdef CTL_TIME_IO 13079 bintime_add(&lun->stats.ports[targ_port].dma_time[type], 13080 &io->io_hdr.dma_bt); 13081 getbinuptime(&cur_bt); 13082 bintime_sub(&cur_bt, &io->io_hdr.start_bt); 13083 bintime_add(&lun->stats.ports[targ_port].time[type], &cur_bt); 13084#endif 13085 lun->stats.ports[targ_port].num_dmas[type] += 13086 io->io_hdr.num_dmas; 13087 } 13088 13089 /* 13090 * Remove this from the OOA queue. 13091 */ 13092 TAILQ_REMOVE(&lun->ooa_queue, &io->io_hdr, ooa_links); 13093#ifdef CTL_TIME_IO 13094 if (TAILQ_EMPTY(&lun->ooa_queue)) 13095 lun->last_busy = getsbinuptime(); 13096#endif 13097 13098 /* 13099 * Run through the blocked queue on this LUN and see if anything 13100 * has become unblocked, now that this transaction is done. 13101 */ 13102 ctl_check_blocked(lun); 13103 13104 /* 13105 * If the LUN has been invalidated, free it if there is nothing 13106 * left on its OOA queue. 13107 */ 13108 if ((lun->flags & CTL_LUN_INVALID) 13109 && TAILQ_EMPTY(&lun->ooa_queue)) { 13110 mtx_unlock(&lun->lun_lock); 13111 mtx_lock(&softc->ctl_lock); 13112 ctl_free_lun(lun); 13113 mtx_unlock(&softc->ctl_lock); 13114 } else 13115 mtx_unlock(&lun->lun_lock); 13116 13117bailout: 13118 13119 /* 13120 * If this command has been aborted, make sure we set the status 13121 * properly. The FETD is responsible for freeing the I/O and doing 13122 * whatever it needs to do to clean up its state. 13123 */ 13124 if (io->io_hdr.flags & CTL_FLAG_ABORT) 13125 ctl_set_task_aborted(&io->scsiio); 13126 13127 /* 13128 * If enabled, print command error status. 13129 */ 13130 if ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_SUCCESS && 13131 (ctl_debug & CTL_DEBUG_INFO) != 0) 13132 ctl_io_error_print(io, NULL); 13133 13134 /* 13135 * Tell the FETD or the other shelf controller we're done with this 13136 * command. Note that only SCSI commands get to this point. Task 13137 * management commands are completed above. 13138 */ 13139 if ((softc->ha_mode != CTL_HA_MODE_XFER) && 13140 (io->io_hdr.flags & CTL_FLAG_SENT_2OTHER_SC)) { 13141 memset(&msg, 0, sizeof(msg)); 13142 msg.hdr.msg_type = CTL_MSG_FINISH_IO; 13143 msg.hdr.serializing_sc = io->io_hdr.serializing_sc; 13144 msg.hdr.nexus = io->io_hdr.nexus; 13145 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, 13146 sizeof(msg.scsi) - sizeof(msg.scsi.sense_data), 13147 M_WAITOK); 13148 } 13149 13150 fe_done(io); 13151} 13152 13153#ifdef CTL_WITH_CA 13154/* 13155 * Front end should call this if it doesn't do autosense. When the request 13156 * sense comes back in from the initiator, we'll dequeue this and send it. 13157 */ 13158int 13159ctl_queue_sense(union ctl_io *io) 13160{ 13161 struct ctl_lun *lun; 13162 struct ctl_port *port; 13163 struct ctl_softc *softc; 13164 uint32_t initidx, targ_lun; 13165 13166 softc = control_softc; 13167 13168 CTL_DEBUG_PRINT(("ctl_queue_sense\n")); 13169 13170 /* 13171 * LUN lookup will likely move to the ctl_work_thread() once we 13172 * have our new queueing infrastructure (that doesn't put things on 13173 * a per-LUN queue initially). That is so that we can handle 13174 * things like an INQUIRY to a LUN that we don't have enabled. We 13175 * can't deal with that right now. 13176 */ 13177 mtx_lock(&softc->ctl_lock); 13178 13179 /* 13180 * If we don't have a LUN for this, just toss the sense 13181 * information. 13182 */ 13183 port = ctl_io_port(&ctsio->io_hdr); 13184 targ_lun = ctl_lun_map_from_port(port, io->io_hdr.nexus.targ_lun); 13185 if ((targ_lun < CTL_MAX_LUNS) 13186 && (softc->ctl_luns[targ_lun] != NULL)) 13187 lun = softc->ctl_luns[targ_lun]; 13188 else 13189 goto bailout; 13190 13191 initidx = ctl_get_initindex(&io->io_hdr.nexus); 13192 13193 mtx_lock(&lun->lun_lock); 13194 /* 13195 * Already have CA set for this LUN...toss the sense information. 13196 */ 13197 if (ctl_is_set(lun->have_ca, initidx)) { 13198 mtx_unlock(&lun->lun_lock); 13199 goto bailout; 13200 } 13201 13202 memcpy(&lun->pending_sense[initidx], &io->scsiio.sense_data, 13203 MIN(sizeof(lun->pending_sense[initidx]), 13204 sizeof(io->scsiio.sense_data))); 13205 ctl_set_mask(lun->have_ca, initidx); 13206 mtx_unlock(&lun->lun_lock); 13207 13208bailout: 13209 mtx_unlock(&softc->ctl_lock); 13210 13211 ctl_free_io(io); 13212 13213 return (CTL_RETVAL_COMPLETE); 13214} 13215#endif 13216 13217/* 13218 * Primary command inlet from frontend ports. All SCSI and task I/O 13219 * requests must go through this function. 13220 */ 13221int 13222ctl_queue(union ctl_io *io) 13223{ 13224 struct ctl_port *port; 13225 13226 CTL_DEBUG_PRINT(("ctl_queue cdb[0]=%02X\n", io->scsiio.cdb[0])); 13227 13228#ifdef CTL_TIME_IO 13229 io->io_hdr.start_time = time_uptime; 13230 getbinuptime(&io->io_hdr.start_bt); 13231#endif /* CTL_TIME_IO */ 13232 13233 /* Map FE-specific LUN ID into global one. */ 13234 port = ctl_io_port(&io->io_hdr); 13235 io->io_hdr.nexus.targ_mapped_lun = 13236 ctl_lun_map_from_port(port, io->io_hdr.nexus.targ_lun); 13237 13238 switch (io->io_hdr.io_type) { 13239 case CTL_IO_SCSI: 13240 case CTL_IO_TASK: 13241 if (ctl_debug & CTL_DEBUG_CDB) 13242 ctl_io_print(io); 13243 ctl_enqueue_incoming(io); 13244 break; 13245 default: 13246 printf("ctl_queue: unknown I/O type %d\n", io->io_hdr.io_type); 13247 return (EINVAL); 13248 } 13249 13250 return (CTL_RETVAL_COMPLETE); 13251} 13252 13253#ifdef CTL_IO_DELAY 13254static void 13255ctl_done_timer_wakeup(void *arg) 13256{ 13257 union ctl_io *io; 13258 13259 io = (union ctl_io *)arg; 13260 ctl_done(io); 13261} 13262#endif /* CTL_IO_DELAY */ 13263 13264void 13265ctl_serseq_done(union ctl_io *io) 13266{ 13267 struct ctl_lun *lun; 13268 13269 lun = (struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 13270 if (lun->be_lun == NULL || 13271 lun->be_lun->serseq == CTL_LUN_SERSEQ_OFF) 13272 return; 13273 mtx_lock(&lun->lun_lock); 13274 io->io_hdr.flags |= CTL_FLAG_SERSEQ_DONE; 13275 ctl_check_blocked(lun); 13276 mtx_unlock(&lun->lun_lock); 13277} 13278 13279void 13280ctl_done(union ctl_io *io) 13281{ 13282 13283 /* 13284 * Enable this to catch duplicate completion issues. 13285 */ 13286#if 0 13287 if (io->io_hdr.flags & CTL_FLAG_ALREADY_DONE) { 13288 printf("%s: type %d msg %d cdb %x iptl: " 13289 "%u:%u:%u tag 0x%04x " 13290 "flag %#x status %x\n", 13291 __func__, 13292 io->io_hdr.io_type, 13293 io->io_hdr.msg_type, 13294 io->scsiio.cdb[0], 13295 io->io_hdr.nexus.initid, 13296 io->io_hdr.nexus.targ_port, 13297 io->io_hdr.nexus.targ_lun, 13298 (io->io_hdr.io_type == 13299 CTL_IO_TASK) ? 13300 io->taskio.tag_num : 13301 io->scsiio.tag_num, 13302 io->io_hdr.flags, 13303 io->io_hdr.status); 13304 } else 13305 io->io_hdr.flags |= CTL_FLAG_ALREADY_DONE; 13306#endif 13307 13308 /* 13309 * This is an internal copy of an I/O, and should not go through 13310 * the normal done processing logic. 13311 */ 13312 if (io->io_hdr.flags & CTL_FLAG_INT_COPY) 13313 return; 13314 13315#ifdef CTL_IO_DELAY 13316 if (io->io_hdr.flags & CTL_FLAG_DELAY_DONE) { 13317 struct ctl_lun *lun; 13318 13319 lun =(struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 13320 13321 io->io_hdr.flags &= ~CTL_FLAG_DELAY_DONE; 13322 } else { 13323 struct ctl_lun *lun; 13324 13325 lun =(struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 13326 13327 if ((lun != NULL) 13328 && (lun->delay_info.done_delay > 0)) { 13329 13330 callout_init(&io->io_hdr.delay_callout, /*mpsafe*/ 1); 13331 io->io_hdr.flags |= CTL_FLAG_DELAY_DONE; 13332 callout_reset(&io->io_hdr.delay_callout, 13333 lun->delay_info.done_delay * hz, 13334 ctl_done_timer_wakeup, io); 13335 if (lun->delay_info.done_type == CTL_DELAY_TYPE_ONESHOT) 13336 lun->delay_info.done_delay = 0; 13337 return; 13338 } 13339 } 13340#endif /* CTL_IO_DELAY */ 13341 13342 ctl_enqueue_done(io); 13343} 13344 13345static void 13346ctl_work_thread(void *arg) 13347{ 13348 struct ctl_thread *thr = (struct ctl_thread *)arg; 13349 struct ctl_softc *softc = thr->ctl_softc; 13350 union ctl_io *io; 13351 int retval; 13352 13353 CTL_DEBUG_PRINT(("ctl_work_thread starting\n")); 13354 13355 for (;;) { 13356 /* 13357 * We handle the queues in this order: 13358 * - ISC 13359 * - done queue (to free up resources, unblock other commands) 13360 * - RtR queue 13361 * - incoming queue 13362 * 13363 * If those queues are empty, we break out of the loop and 13364 * go to sleep. 13365 */ 13366 mtx_lock(&thr->queue_lock); 13367 io = (union ctl_io *)STAILQ_FIRST(&thr->isc_queue); 13368 if (io != NULL) { 13369 STAILQ_REMOVE_HEAD(&thr->isc_queue, links); 13370 mtx_unlock(&thr->queue_lock); 13371 ctl_handle_isc(io); 13372 continue; 13373 } 13374 io = (union ctl_io *)STAILQ_FIRST(&thr->done_queue); 13375 if (io != NULL) { 13376 STAILQ_REMOVE_HEAD(&thr->done_queue, links); 13377 /* clear any blocked commands, call fe_done */ 13378 mtx_unlock(&thr->queue_lock); 13379 ctl_process_done(io); 13380 continue; 13381 } 13382 io = (union ctl_io *)STAILQ_FIRST(&thr->incoming_queue); 13383 if (io != NULL) { 13384 STAILQ_REMOVE_HEAD(&thr->incoming_queue, links); 13385 mtx_unlock(&thr->queue_lock); 13386 if (io->io_hdr.io_type == CTL_IO_TASK) 13387 ctl_run_task(io); 13388 else 13389 ctl_scsiio_precheck(softc, &io->scsiio); 13390 continue; 13391 } 13392 io = (union ctl_io *)STAILQ_FIRST(&thr->rtr_queue); 13393 if (io != NULL) { 13394 STAILQ_REMOVE_HEAD(&thr->rtr_queue, links); 13395 mtx_unlock(&thr->queue_lock); 13396 retval = ctl_scsiio(&io->scsiio); 13397 if (retval != CTL_RETVAL_COMPLETE) 13398 CTL_DEBUG_PRINT(("ctl_scsiio failed\n")); 13399 continue; 13400 } 13401 13402 /* Sleep until we have something to do. */ 13403 mtx_sleep(thr, &thr->queue_lock, PDROP | PRIBIO, "-", 0); 13404 } 13405} 13406 13407static void 13408ctl_lun_thread(void *arg) 13409{ 13410 struct ctl_softc *softc = (struct ctl_softc *)arg; 13411 struct ctl_be_lun *be_lun; 13412 13413 CTL_DEBUG_PRINT(("ctl_lun_thread starting\n")); 13414 13415 for (;;) { 13416 mtx_lock(&softc->ctl_lock); 13417 be_lun = STAILQ_FIRST(&softc->pending_lun_queue); 13418 if (be_lun != NULL) { 13419 STAILQ_REMOVE_HEAD(&softc->pending_lun_queue, links); 13420 mtx_unlock(&softc->ctl_lock); 13421 ctl_create_lun(be_lun); 13422 continue; 13423 } 13424 13425 /* Sleep until we have something to do. */ 13426 mtx_sleep(&softc->pending_lun_queue, &softc->ctl_lock, 13427 PDROP | PRIBIO, "-", 0); 13428 } 13429} 13430 13431static void 13432ctl_thresh_thread(void *arg) 13433{ 13434 struct ctl_softc *softc = (struct ctl_softc *)arg; 13435 struct ctl_lun *lun; 13436 struct scsi_da_rw_recovery_page *rwpage; 13437 struct ctl_logical_block_provisioning_page *page; 13438 const char *attr; 13439 union ctl_ha_msg msg; 13440 uint64_t thres, val; 13441 int i, e, set; 13442 13443 CTL_DEBUG_PRINT(("ctl_thresh_thread starting\n")); 13444 13445 for (;;) { 13446 mtx_lock(&softc->ctl_lock); 13447 STAILQ_FOREACH(lun, &softc->lun_list, links) { 13448 if ((lun->flags & CTL_LUN_DISABLED) || 13449 (lun->flags & CTL_LUN_NO_MEDIA) || 13450 lun->backend->lun_attr == NULL) 13451 continue; 13452 if ((lun->flags & CTL_LUN_PRIMARY_SC) == 0 && 13453 softc->ha_mode == CTL_HA_MODE_XFER) 13454 continue; 13455 rwpage = &lun->mode_pages.rw_er_page[CTL_PAGE_CURRENT]; 13456 if ((rwpage->byte8 & SMS_RWER_LBPERE) == 0) 13457 continue; 13458 e = 0; 13459 page = &lun->mode_pages.lbp_page[CTL_PAGE_CURRENT]; 13460 for (i = 0; i < CTL_NUM_LBP_THRESH; i++) { 13461 if ((page->descr[i].flags & SLBPPD_ENABLED) == 0) 13462 continue; 13463 thres = scsi_4btoul(page->descr[i].count); 13464 thres <<= CTL_LBP_EXPONENT; 13465 switch (page->descr[i].resource) { 13466 case 0x01: 13467 attr = "blocksavail"; 13468 break; 13469 case 0x02: 13470 attr = "blocksused"; 13471 break; 13472 case 0xf1: 13473 attr = "poolblocksavail"; 13474 break; 13475 case 0xf2: 13476 attr = "poolblocksused"; 13477 break; 13478 default: 13479 continue; 13480 } 13481 mtx_unlock(&softc->ctl_lock); // XXX 13482 val = lun->backend->lun_attr( 13483 lun->be_lun->be_lun, attr); 13484 mtx_lock(&softc->ctl_lock); 13485 if (val == UINT64_MAX) 13486 continue; 13487 if ((page->descr[i].flags & SLBPPD_ARMING_MASK) 13488 == SLBPPD_ARMING_INC) 13489 e = (val >= thres); 13490 else 13491 e = (val <= thres); 13492 if (e) 13493 break; 13494 } 13495 mtx_lock(&lun->lun_lock); 13496 if (e) { 13497 scsi_u64to8b((uint8_t *)&page->descr[i] - 13498 (uint8_t *)page, lun->ua_tpt_info); 13499 if (lun->lasttpt == 0 || 13500 time_uptime - lun->lasttpt >= CTL_LBP_UA_PERIOD) { 13501 lun->lasttpt = time_uptime; 13502 ctl_est_ua_all(lun, -1, CTL_UA_THIN_PROV_THRES); 13503 set = 1; 13504 } else 13505 set = 0; 13506 } else { 13507 lun->lasttpt = 0; 13508 ctl_clr_ua_all(lun, -1, CTL_UA_THIN_PROV_THRES); 13509 set = -1; 13510 } 13511 mtx_unlock(&lun->lun_lock); 13512 if (set != 0 && 13513 lun->ctl_softc->ha_mode == CTL_HA_MODE_XFER) { 13514 /* Send msg to other side. */ 13515 bzero(&msg.ua, sizeof(msg.ua)); 13516 msg.hdr.msg_type = CTL_MSG_UA; 13517 msg.hdr.nexus.initid = -1; 13518 msg.hdr.nexus.targ_port = -1; 13519 msg.hdr.nexus.targ_lun = lun->lun; 13520 msg.hdr.nexus.targ_mapped_lun = lun->lun; 13521 msg.ua.ua_all = 1; 13522 msg.ua.ua_set = (set > 0); 13523 msg.ua.ua_type = CTL_UA_THIN_PROV_THRES; 13524 memcpy(msg.ua.ua_info, lun->ua_tpt_info, 8); 13525 mtx_unlock(&softc->ctl_lock); // XXX 13526 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, 13527 sizeof(msg.ua), M_WAITOK); 13528 mtx_lock(&softc->ctl_lock); 13529 } 13530 } 13531 mtx_unlock(&softc->ctl_lock); 13532 pause("-", CTL_LBP_PERIOD * hz); 13533 } 13534} 13535 13536static void 13537ctl_enqueue_incoming(union ctl_io *io) 13538{ 13539 struct ctl_softc *softc = control_softc; 13540 struct ctl_thread *thr; 13541 u_int idx; 13542 13543 idx = (io->io_hdr.nexus.targ_port * 127 + 13544 io->io_hdr.nexus.initid) % worker_threads; 13545 thr = &softc->threads[idx]; 13546 mtx_lock(&thr->queue_lock); 13547 STAILQ_INSERT_TAIL(&thr->incoming_queue, &io->io_hdr, links); 13548 mtx_unlock(&thr->queue_lock); 13549 wakeup(thr); 13550} 13551 13552static void 13553ctl_enqueue_rtr(union ctl_io *io) 13554{ 13555 struct ctl_softc *softc = control_softc; 13556 struct ctl_thread *thr; 13557 13558 thr = &softc->threads[io->io_hdr.nexus.targ_mapped_lun % worker_threads]; 13559 mtx_lock(&thr->queue_lock); 13560 STAILQ_INSERT_TAIL(&thr->rtr_queue, &io->io_hdr, links); 13561 mtx_unlock(&thr->queue_lock); 13562 wakeup(thr); 13563} 13564 13565static void 13566ctl_enqueue_done(union ctl_io *io) 13567{ 13568 struct ctl_softc *softc = control_softc; 13569 struct ctl_thread *thr; 13570 13571 thr = &softc->threads[io->io_hdr.nexus.targ_mapped_lun % worker_threads]; 13572 mtx_lock(&thr->queue_lock); 13573 STAILQ_INSERT_TAIL(&thr->done_queue, &io->io_hdr, links); 13574 mtx_unlock(&thr->queue_lock); 13575 wakeup(thr); 13576} 13577 13578static void 13579ctl_enqueue_isc(union ctl_io *io) 13580{ 13581 struct ctl_softc *softc = control_softc; 13582 struct ctl_thread *thr; 13583 13584 thr = &softc->threads[io->io_hdr.nexus.targ_mapped_lun % worker_threads]; 13585 mtx_lock(&thr->queue_lock); 13586 STAILQ_INSERT_TAIL(&thr->isc_queue, &io->io_hdr, links); 13587 mtx_unlock(&thr->queue_lock); 13588 wakeup(thr); 13589} 13590 13591/* 13592 * vim: ts=8 13593 */ 13594