ctl.c revision 288818
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 288818 2015-10-05 11:46:23Z 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 STAILQ_FOREACH_SAFE(lun, &softc->lun_list, links, next_lun) 1928 ctl_free_lun(lun); 1929 1930 mtx_unlock(&softc->ctl_lock); 1931 1932#if 0 1933 ctl_shutdown_thread(softc->work_thread); 1934 mtx_destroy(&softc->queue_lock); 1935#endif 1936 1937 ctl_tpc_shutdown(softc); 1938 uma_zdestroy(softc->io_zone); 1939 mtx_destroy(&softc->ctl_lock); 1940 1941 destroy_dev(softc->dev); 1942 1943 sysctl_ctx_free(&softc->sysctl_ctx); 1944 1945 free(control_softc, M_DEVBUF); 1946 control_softc = NULL; 1947} 1948 1949static int 1950ctl_module_event_handler(module_t mod, int what, void *arg) 1951{ 1952 1953 switch (what) { 1954 case MOD_LOAD: 1955 return (ctl_init()); 1956 case MOD_UNLOAD: 1957 return (EBUSY); 1958 default: 1959 return (EOPNOTSUPP); 1960 } 1961} 1962 1963/* 1964 * XXX KDM should we do some access checks here? Bump a reference count to 1965 * prevent a CTL module from being unloaded while someone has it open? 1966 */ 1967static int 1968ctl_open(struct cdev *dev, int flags, int fmt, struct thread *td) 1969{ 1970 return (0); 1971} 1972 1973static int 1974ctl_close(struct cdev *dev, int flags, int fmt, struct thread *td) 1975{ 1976 return (0); 1977} 1978 1979/* 1980 * Remove an initiator by port number and initiator ID. 1981 * Returns 0 for success, -1 for failure. 1982 */ 1983int 1984ctl_remove_initiator(struct ctl_port *port, int iid) 1985{ 1986 struct ctl_softc *softc = port->ctl_softc; 1987 1988 mtx_assert(&softc->ctl_lock, MA_NOTOWNED); 1989 1990 if (iid > CTL_MAX_INIT_PER_PORT) { 1991 printf("%s: initiator ID %u > maximun %u!\n", 1992 __func__, iid, CTL_MAX_INIT_PER_PORT); 1993 return (-1); 1994 } 1995 1996 mtx_lock(&softc->ctl_lock); 1997 port->wwpn_iid[iid].in_use--; 1998 port->wwpn_iid[iid].last_use = time_uptime; 1999 mtx_unlock(&softc->ctl_lock); 2000 ctl_isc_announce_iid(port, iid); 2001 2002 return (0); 2003} 2004 2005/* 2006 * Add an initiator to the initiator map. 2007 * Returns iid for success, < 0 for failure. 2008 */ 2009int 2010ctl_add_initiator(struct ctl_port *port, int iid, uint64_t wwpn, char *name) 2011{ 2012 struct ctl_softc *softc = port->ctl_softc; 2013 time_t best_time; 2014 int i, best; 2015 2016 mtx_assert(&softc->ctl_lock, MA_NOTOWNED); 2017 2018 if (iid >= CTL_MAX_INIT_PER_PORT) { 2019 printf("%s: WWPN %#jx initiator ID %u > maximum %u!\n", 2020 __func__, wwpn, iid, CTL_MAX_INIT_PER_PORT); 2021 free(name, M_CTL); 2022 return (-1); 2023 } 2024 2025 mtx_lock(&softc->ctl_lock); 2026 2027 if (iid < 0 && (wwpn != 0 || name != NULL)) { 2028 for (i = 0; i < CTL_MAX_INIT_PER_PORT; i++) { 2029 if (wwpn != 0 && wwpn == port->wwpn_iid[i].wwpn) { 2030 iid = i; 2031 break; 2032 } 2033 if (name != NULL && port->wwpn_iid[i].name != NULL && 2034 strcmp(name, port->wwpn_iid[i].name) == 0) { 2035 iid = i; 2036 break; 2037 } 2038 } 2039 } 2040 2041 if (iid < 0) { 2042 for (i = 0; i < CTL_MAX_INIT_PER_PORT; i++) { 2043 if (port->wwpn_iid[i].in_use == 0 && 2044 port->wwpn_iid[i].wwpn == 0 && 2045 port->wwpn_iid[i].name == NULL) { 2046 iid = i; 2047 break; 2048 } 2049 } 2050 } 2051 2052 if (iid < 0) { 2053 best = -1; 2054 best_time = INT32_MAX; 2055 for (i = 0; i < CTL_MAX_INIT_PER_PORT; i++) { 2056 if (port->wwpn_iid[i].in_use == 0) { 2057 if (port->wwpn_iid[i].last_use < best_time) { 2058 best = i; 2059 best_time = port->wwpn_iid[i].last_use; 2060 } 2061 } 2062 } 2063 iid = best; 2064 } 2065 2066 if (iid < 0) { 2067 mtx_unlock(&softc->ctl_lock); 2068 free(name, M_CTL); 2069 return (-2); 2070 } 2071 2072 if (port->wwpn_iid[iid].in_use > 0 && (wwpn != 0 || name != NULL)) { 2073 /* 2074 * This is not an error yet. 2075 */ 2076 if (wwpn != 0 && wwpn == port->wwpn_iid[iid].wwpn) { 2077#if 0 2078 printf("%s: port %d iid %u WWPN %#jx arrived" 2079 " again\n", __func__, port->targ_port, 2080 iid, (uintmax_t)wwpn); 2081#endif 2082 goto take; 2083 } 2084 if (name != NULL && port->wwpn_iid[iid].name != NULL && 2085 strcmp(name, port->wwpn_iid[iid].name) == 0) { 2086#if 0 2087 printf("%s: port %d iid %u name '%s' arrived" 2088 " again\n", __func__, port->targ_port, 2089 iid, name); 2090#endif 2091 goto take; 2092 } 2093 2094 /* 2095 * This is an error, but what do we do about it? The 2096 * driver is telling us we have a new WWPN for this 2097 * initiator ID, so we pretty much need to use it. 2098 */ 2099 printf("%s: port %d iid %u WWPN %#jx '%s' arrived," 2100 " but WWPN %#jx '%s' is still at that address\n", 2101 __func__, port->targ_port, iid, wwpn, name, 2102 (uintmax_t)port->wwpn_iid[iid].wwpn, 2103 port->wwpn_iid[iid].name); 2104 2105 /* 2106 * XXX KDM clear have_ca and ua_pending on each LUN for 2107 * this initiator. 2108 */ 2109 } 2110take: 2111 free(port->wwpn_iid[iid].name, M_CTL); 2112 port->wwpn_iid[iid].name = name; 2113 port->wwpn_iid[iid].wwpn = wwpn; 2114 port->wwpn_iid[iid].in_use++; 2115 mtx_unlock(&softc->ctl_lock); 2116 ctl_isc_announce_iid(port, iid); 2117 2118 return (iid); 2119} 2120 2121static int 2122ctl_create_iid(struct ctl_port *port, int iid, uint8_t *buf) 2123{ 2124 int len; 2125 2126 switch (port->port_type) { 2127 case CTL_PORT_FC: 2128 { 2129 struct scsi_transportid_fcp *id = 2130 (struct scsi_transportid_fcp *)buf; 2131 if (port->wwpn_iid[iid].wwpn == 0) 2132 return (0); 2133 memset(id, 0, sizeof(*id)); 2134 id->format_protocol = SCSI_PROTO_FC; 2135 scsi_u64to8b(port->wwpn_iid[iid].wwpn, id->n_port_name); 2136 return (sizeof(*id)); 2137 } 2138 case CTL_PORT_ISCSI: 2139 { 2140 struct scsi_transportid_iscsi_port *id = 2141 (struct scsi_transportid_iscsi_port *)buf; 2142 if (port->wwpn_iid[iid].name == NULL) 2143 return (0); 2144 memset(id, 0, 256); 2145 id->format_protocol = SCSI_TRN_ISCSI_FORMAT_PORT | 2146 SCSI_PROTO_ISCSI; 2147 len = strlcpy(id->iscsi_name, port->wwpn_iid[iid].name, 252) + 1; 2148 len = roundup2(min(len, 252), 4); 2149 scsi_ulto2b(len, id->additional_length); 2150 return (sizeof(*id) + len); 2151 } 2152 case CTL_PORT_SAS: 2153 { 2154 struct scsi_transportid_sas *id = 2155 (struct scsi_transportid_sas *)buf; 2156 if (port->wwpn_iid[iid].wwpn == 0) 2157 return (0); 2158 memset(id, 0, sizeof(*id)); 2159 id->format_protocol = SCSI_PROTO_SAS; 2160 scsi_u64to8b(port->wwpn_iid[iid].wwpn, id->sas_address); 2161 return (sizeof(*id)); 2162 } 2163 default: 2164 { 2165 struct scsi_transportid_spi *id = 2166 (struct scsi_transportid_spi *)buf; 2167 memset(id, 0, sizeof(*id)); 2168 id->format_protocol = SCSI_PROTO_SPI; 2169 scsi_ulto2b(iid, id->scsi_addr); 2170 scsi_ulto2b(port->targ_port, id->rel_trgt_port_id); 2171 return (sizeof(*id)); 2172 } 2173 } 2174} 2175 2176/* 2177 * Serialize a command that went down the "wrong" side, and so was sent to 2178 * this controller for execution. The logic is a little different than the 2179 * standard case in ctl_scsiio_precheck(). Errors in this case need to get 2180 * sent back to the other side, but in the success case, we execute the 2181 * command on this side (XFER mode) or tell the other side to execute it 2182 * (SER_ONLY mode). 2183 */ 2184static int 2185ctl_serialize_other_sc_cmd(struct ctl_scsiio *ctsio) 2186{ 2187 struct ctl_softc *softc = control_softc; 2188 union ctl_ha_msg msg_info; 2189 struct ctl_port *port; 2190 struct ctl_lun *lun; 2191 const struct ctl_cmd_entry *entry; 2192 int retval = 0; 2193 uint32_t targ_lun; 2194 2195 targ_lun = ctsio->io_hdr.nexus.targ_mapped_lun; 2196 mtx_lock(&softc->ctl_lock); 2197 2198 /* Make sure that we know about this port. */ 2199 port = ctl_io_port(&ctsio->io_hdr); 2200 if (port == NULL || (port->status & CTL_PORT_STATUS_ONLINE) == 0) { 2201 ctl_set_internal_failure(ctsio, /*sks_valid*/ 0, 2202 /*retry_count*/ 1); 2203 goto badjuju; 2204 } 2205 2206 /* Make sure that we know about this LUN. */ 2207 if ((targ_lun < CTL_MAX_LUNS) && 2208 ((lun = softc->ctl_luns[targ_lun]) != NULL)) { 2209 mtx_lock(&lun->lun_lock); 2210 mtx_unlock(&softc->ctl_lock); 2211 /* 2212 * If the LUN is invalid, pretend that it doesn't exist. 2213 * It will go away as soon as all pending I/O has been 2214 * completed. 2215 */ 2216 if (lun->flags & CTL_LUN_DISABLED) { 2217 mtx_unlock(&lun->lun_lock); 2218 lun = NULL; 2219 } 2220 } else { 2221 mtx_unlock(&softc->ctl_lock); 2222 lun = NULL; 2223 } 2224 if (lun == NULL) { 2225 /* 2226 * The other node would not send this request to us unless 2227 * received announce that we are primary node for this LUN. 2228 * If this LUN does not exist now, it is probably result of 2229 * a race, so respond to initiator in the most opaque way. 2230 */ 2231 ctl_set_busy(ctsio); 2232 goto badjuju; 2233 } 2234 2235 entry = ctl_get_cmd_entry(ctsio, NULL); 2236 if (ctl_scsiio_lun_check(lun, entry, ctsio) != 0) { 2237 mtx_unlock(&lun->lun_lock); 2238 goto badjuju; 2239 } 2240 2241 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr = lun; 2242 ctsio->io_hdr.ctl_private[CTL_PRIV_BACKEND_LUN].ptr = lun->be_lun; 2243 2244 /* 2245 * Every I/O goes into the OOA queue for a 2246 * particular LUN, and stays there until completion. 2247 */ 2248#ifdef CTL_TIME_IO 2249 if (TAILQ_EMPTY(&lun->ooa_queue)) 2250 lun->idle_time += getsbinuptime() - lun->last_busy; 2251#endif 2252 TAILQ_INSERT_TAIL(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 2253 2254 switch (ctl_check_ooa(lun, (union ctl_io *)ctsio, 2255 (union ctl_io *)TAILQ_PREV(&ctsio->io_hdr, ctl_ooaq, 2256 ooa_links))) { 2257 case CTL_ACTION_BLOCK: 2258 ctsio->io_hdr.flags |= CTL_FLAG_BLOCKED; 2259 TAILQ_INSERT_TAIL(&lun->blocked_queue, &ctsio->io_hdr, 2260 blocked_links); 2261 mtx_unlock(&lun->lun_lock); 2262 break; 2263 case CTL_ACTION_PASS: 2264 case CTL_ACTION_SKIP: 2265 if (softc->ha_mode == CTL_HA_MODE_XFER) { 2266 ctsio->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 2267 ctl_enqueue_rtr((union ctl_io *)ctsio); 2268 mtx_unlock(&lun->lun_lock); 2269 } else { 2270 ctsio->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 2271 mtx_unlock(&lun->lun_lock); 2272 2273 /* send msg back to other side */ 2274 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 2275 msg_info.hdr.serializing_sc = (union ctl_io *)ctsio; 2276 msg_info.hdr.msg_type = CTL_MSG_R2R; 2277 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 2278 sizeof(msg_info.hdr), M_WAITOK); 2279 } 2280 break; 2281 case CTL_ACTION_OVERLAP: 2282 TAILQ_REMOVE(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 2283 mtx_unlock(&lun->lun_lock); 2284 ctl_set_overlapped_cmd(ctsio); 2285 goto badjuju; 2286 case CTL_ACTION_OVERLAP_TAG: 2287 TAILQ_REMOVE(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 2288 mtx_unlock(&lun->lun_lock); 2289 ctl_set_overlapped_tag(ctsio, ctsio->tag_num); 2290 goto badjuju; 2291 case CTL_ACTION_ERROR: 2292 default: 2293 TAILQ_REMOVE(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 2294 mtx_unlock(&lun->lun_lock); 2295 2296 ctl_set_internal_failure(ctsio, /*sks_valid*/ 0, 2297 /*retry_count*/ 0); 2298badjuju: 2299 ctl_copy_sense_data_back((union ctl_io *)ctsio, &msg_info); 2300 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 2301 msg_info.hdr.serializing_sc = NULL; 2302 msg_info.hdr.msg_type = CTL_MSG_BAD_JUJU; 2303 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 2304 sizeof(msg_info.scsi), M_WAITOK); 2305 retval = 1; 2306 break; 2307 } 2308 return (retval); 2309} 2310 2311/* 2312 * Returns 0 for success, errno for failure. 2313 */ 2314static void 2315ctl_ioctl_fill_ooa(struct ctl_lun *lun, uint32_t *cur_fill_num, 2316 struct ctl_ooa *ooa_hdr, struct ctl_ooa_entry *kern_entries) 2317{ 2318 union ctl_io *io; 2319 2320 mtx_lock(&lun->lun_lock); 2321 for (io = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); (io != NULL); 2322 (*cur_fill_num)++, io = (union ctl_io *)TAILQ_NEXT(&io->io_hdr, 2323 ooa_links)) { 2324 struct ctl_ooa_entry *entry; 2325 2326 /* 2327 * If we've got more than we can fit, just count the 2328 * remaining entries. 2329 */ 2330 if (*cur_fill_num >= ooa_hdr->alloc_num) 2331 continue; 2332 2333 entry = &kern_entries[*cur_fill_num]; 2334 2335 entry->tag_num = io->scsiio.tag_num; 2336 entry->lun_num = lun->lun; 2337#ifdef CTL_TIME_IO 2338 entry->start_bt = io->io_hdr.start_bt; 2339#endif 2340 bcopy(io->scsiio.cdb, entry->cdb, io->scsiio.cdb_len); 2341 entry->cdb_len = io->scsiio.cdb_len; 2342 if (io->io_hdr.flags & CTL_FLAG_BLOCKED) 2343 entry->cmd_flags |= CTL_OOACMD_FLAG_BLOCKED; 2344 2345 if (io->io_hdr.flags & CTL_FLAG_DMA_INPROG) 2346 entry->cmd_flags |= CTL_OOACMD_FLAG_DMA; 2347 2348 if (io->io_hdr.flags & CTL_FLAG_ABORT) 2349 entry->cmd_flags |= CTL_OOACMD_FLAG_ABORT; 2350 2351 if (io->io_hdr.flags & CTL_FLAG_IS_WAS_ON_RTR) 2352 entry->cmd_flags |= CTL_OOACMD_FLAG_RTR; 2353 2354 if (io->io_hdr.flags & CTL_FLAG_DMA_QUEUED) 2355 entry->cmd_flags |= CTL_OOACMD_FLAG_DMA_QUEUED; 2356 } 2357 mtx_unlock(&lun->lun_lock); 2358} 2359 2360static void * 2361ctl_copyin_alloc(void *user_addr, int len, char *error_str, 2362 size_t error_str_len) 2363{ 2364 void *kptr; 2365 2366 kptr = malloc(len, M_CTL, M_WAITOK | M_ZERO); 2367 2368 if (copyin(user_addr, kptr, len) != 0) { 2369 snprintf(error_str, error_str_len, "Error copying %d bytes " 2370 "from user address %p to kernel address %p", len, 2371 user_addr, kptr); 2372 free(kptr, M_CTL); 2373 return (NULL); 2374 } 2375 2376 return (kptr); 2377} 2378 2379static void 2380ctl_free_args(int num_args, struct ctl_be_arg *args) 2381{ 2382 int i; 2383 2384 if (args == NULL) 2385 return; 2386 2387 for (i = 0; i < num_args; i++) { 2388 free(args[i].kname, M_CTL); 2389 free(args[i].kvalue, M_CTL); 2390 } 2391 2392 free(args, M_CTL); 2393} 2394 2395static struct ctl_be_arg * 2396ctl_copyin_args(int num_args, struct ctl_be_arg *uargs, 2397 char *error_str, size_t error_str_len) 2398{ 2399 struct ctl_be_arg *args; 2400 int i; 2401 2402 args = ctl_copyin_alloc(uargs, num_args * sizeof(*args), 2403 error_str, error_str_len); 2404 2405 if (args == NULL) 2406 goto bailout; 2407 2408 for (i = 0; i < num_args; i++) { 2409 args[i].kname = NULL; 2410 args[i].kvalue = NULL; 2411 } 2412 2413 for (i = 0; i < num_args; i++) { 2414 uint8_t *tmpptr; 2415 2416 args[i].kname = ctl_copyin_alloc(args[i].name, 2417 args[i].namelen, error_str, error_str_len); 2418 if (args[i].kname == NULL) 2419 goto bailout; 2420 2421 if (args[i].kname[args[i].namelen - 1] != '\0') { 2422 snprintf(error_str, error_str_len, "Argument %d " 2423 "name is not NUL-terminated", i); 2424 goto bailout; 2425 } 2426 2427 if (args[i].flags & CTL_BEARG_RD) { 2428 tmpptr = ctl_copyin_alloc(args[i].value, 2429 args[i].vallen, error_str, error_str_len); 2430 if (tmpptr == NULL) 2431 goto bailout; 2432 if ((args[i].flags & CTL_BEARG_ASCII) 2433 && (tmpptr[args[i].vallen - 1] != '\0')) { 2434 snprintf(error_str, error_str_len, "Argument " 2435 "%d value is not NUL-terminated", i); 2436 goto bailout; 2437 } 2438 args[i].kvalue = tmpptr; 2439 } else { 2440 args[i].kvalue = malloc(args[i].vallen, 2441 M_CTL, M_WAITOK | M_ZERO); 2442 } 2443 } 2444 2445 return (args); 2446bailout: 2447 2448 ctl_free_args(num_args, args); 2449 2450 return (NULL); 2451} 2452 2453static void 2454ctl_copyout_args(int num_args, struct ctl_be_arg *args) 2455{ 2456 int i; 2457 2458 for (i = 0; i < num_args; i++) { 2459 if (args[i].flags & CTL_BEARG_WR) 2460 copyout(args[i].kvalue, args[i].value, args[i].vallen); 2461 } 2462} 2463 2464/* 2465 * Escape characters that are illegal or not recommended in XML. 2466 */ 2467int 2468ctl_sbuf_printf_esc(struct sbuf *sb, char *str, int size) 2469{ 2470 char *end = str + size; 2471 int retval; 2472 2473 retval = 0; 2474 2475 for (; *str && str < end; str++) { 2476 switch (*str) { 2477 case '&': 2478 retval = sbuf_printf(sb, "&"); 2479 break; 2480 case '>': 2481 retval = sbuf_printf(sb, ">"); 2482 break; 2483 case '<': 2484 retval = sbuf_printf(sb, "<"); 2485 break; 2486 default: 2487 retval = sbuf_putc(sb, *str); 2488 break; 2489 } 2490 2491 if (retval != 0) 2492 break; 2493 2494 } 2495 2496 return (retval); 2497} 2498 2499static void 2500ctl_id_sbuf(struct ctl_devid *id, struct sbuf *sb) 2501{ 2502 struct scsi_vpd_id_descriptor *desc; 2503 int i; 2504 2505 if (id == NULL || id->len < 4) 2506 return; 2507 desc = (struct scsi_vpd_id_descriptor *)id->data; 2508 switch (desc->id_type & SVPD_ID_TYPE_MASK) { 2509 case SVPD_ID_TYPE_T10: 2510 sbuf_printf(sb, "t10."); 2511 break; 2512 case SVPD_ID_TYPE_EUI64: 2513 sbuf_printf(sb, "eui."); 2514 break; 2515 case SVPD_ID_TYPE_NAA: 2516 sbuf_printf(sb, "naa."); 2517 break; 2518 case SVPD_ID_TYPE_SCSI_NAME: 2519 break; 2520 } 2521 switch (desc->proto_codeset & SVPD_ID_CODESET_MASK) { 2522 case SVPD_ID_CODESET_BINARY: 2523 for (i = 0; i < desc->length; i++) 2524 sbuf_printf(sb, "%02x", desc->identifier[i]); 2525 break; 2526 case SVPD_ID_CODESET_ASCII: 2527 sbuf_printf(sb, "%.*s", (int)desc->length, 2528 (char *)desc->identifier); 2529 break; 2530 case SVPD_ID_CODESET_UTF8: 2531 sbuf_printf(sb, "%s", (char *)desc->identifier); 2532 break; 2533 } 2534} 2535 2536static int 2537ctl_ioctl(struct cdev *dev, u_long cmd, caddr_t addr, int flag, 2538 struct thread *td) 2539{ 2540 struct ctl_softc *softc = dev->si_drv1; 2541 struct ctl_lun *lun; 2542 int retval; 2543 2544 retval = 0; 2545 2546 switch (cmd) { 2547 case CTL_IO: 2548 retval = ctl_ioctl_io(dev, cmd, addr, flag, td); 2549 break; 2550 case CTL_ENABLE_PORT: 2551 case CTL_DISABLE_PORT: 2552 case CTL_SET_PORT_WWNS: { 2553 struct ctl_port *port; 2554 struct ctl_port_entry *entry; 2555 2556 entry = (struct ctl_port_entry *)addr; 2557 2558 mtx_lock(&softc->ctl_lock); 2559 STAILQ_FOREACH(port, &softc->port_list, links) { 2560 int action, done; 2561 2562 if (port->targ_port < softc->port_min || 2563 port->targ_port >= softc->port_max) 2564 continue; 2565 2566 action = 0; 2567 done = 0; 2568 if ((entry->port_type == CTL_PORT_NONE) 2569 && (entry->targ_port == port->targ_port)) { 2570 /* 2571 * If the user only wants to enable or 2572 * disable or set WWNs on a specific port, 2573 * do the operation and we're done. 2574 */ 2575 action = 1; 2576 done = 1; 2577 } else if (entry->port_type & port->port_type) { 2578 /* 2579 * Compare the user's type mask with the 2580 * particular frontend type to see if we 2581 * have a match. 2582 */ 2583 action = 1; 2584 done = 0; 2585 2586 /* 2587 * Make sure the user isn't trying to set 2588 * WWNs on multiple ports at the same time. 2589 */ 2590 if (cmd == CTL_SET_PORT_WWNS) { 2591 printf("%s: Can't set WWNs on " 2592 "multiple ports\n", __func__); 2593 retval = EINVAL; 2594 break; 2595 } 2596 } 2597 if (action == 0) 2598 continue; 2599 2600 /* 2601 * XXX KDM we have to drop the lock here, because 2602 * the online/offline operations can potentially 2603 * block. We need to reference count the frontends 2604 * so they can't go away, 2605 */ 2606 if (cmd == CTL_ENABLE_PORT) { 2607 mtx_unlock(&softc->ctl_lock); 2608 ctl_port_online(port); 2609 mtx_lock(&softc->ctl_lock); 2610 } else if (cmd == CTL_DISABLE_PORT) { 2611 mtx_unlock(&softc->ctl_lock); 2612 ctl_port_offline(port); 2613 mtx_lock(&softc->ctl_lock); 2614 } else if (cmd == CTL_SET_PORT_WWNS) { 2615 ctl_port_set_wwns(port, 2616 (entry->flags & CTL_PORT_WWNN_VALID) ? 2617 1 : 0, entry->wwnn, 2618 (entry->flags & CTL_PORT_WWPN_VALID) ? 2619 1 : 0, entry->wwpn); 2620 } 2621 if (done != 0) 2622 break; 2623 } 2624 mtx_unlock(&softc->ctl_lock); 2625 break; 2626 } 2627 case CTL_GET_OOA: { 2628 struct ctl_ooa *ooa_hdr; 2629 struct ctl_ooa_entry *entries; 2630 uint32_t cur_fill_num; 2631 2632 ooa_hdr = (struct ctl_ooa *)addr; 2633 2634 if ((ooa_hdr->alloc_len == 0) 2635 || (ooa_hdr->alloc_num == 0)) { 2636 printf("%s: CTL_GET_OOA: alloc len %u and alloc num %u " 2637 "must be non-zero\n", __func__, 2638 ooa_hdr->alloc_len, ooa_hdr->alloc_num); 2639 retval = EINVAL; 2640 break; 2641 } 2642 2643 if (ooa_hdr->alloc_len != (ooa_hdr->alloc_num * 2644 sizeof(struct ctl_ooa_entry))) { 2645 printf("%s: CTL_GET_OOA: alloc len %u must be alloc " 2646 "num %d * sizeof(struct ctl_ooa_entry) %zd\n", 2647 __func__, ooa_hdr->alloc_len, 2648 ooa_hdr->alloc_num,sizeof(struct ctl_ooa_entry)); 2649 retval = EINVAL; 2650 break; 2651 } 2652 2653 entries = malloc(ooa_hdr->alloc_len, M_CTL, M_WAITOK | M_ZERO); 2654 if (entries == NULL) { 2655 printf("%s: could not allocate %d bytes for OOA " 2656 "dump\n", __func__, ooa_hdr->alloc_len); 2657 retval = ENOMEM; 2658 break; 2659 } 2660 2661 mtx_lock(&softc->ctl_lock); 2662 if (((ooa_hdr->flags & CTL_OOA_FLAG_ALL_LUNS) == 0) 2663 && ((ooa_hdr->lun_num >= CTL_MAX_LUNS) 2664 || (softc->ctl_luns[ooa_hdr->lun_num] == NULL))) { 2665 mtx_unlock(&softc->ctl_lock); 2666 free(entries, M_CTL); 2667 printf("%s: CTL_GET_OOA: invalid LUN %ju\n", 2668 __func__, (uintmax_t)ooa_hdr->lun_num); 2669 retval = EINVAL; 2670 break; 2671 } 2672 2673 cur_fill_num = 0; 2674 2675 if (ooa_hdr->flags & CTL_OOA_FLAG_ALL_LUNS) { 2676 STAILQ_FOREACH(lun, &softc->lun_list, links) { 2677 ctl_ioctl_fill_ooa(lun, &cur_fill_num, 2678 ooa_hdr, entries); 2679 } 2680 } else { 2681 lun = softc->ctl_luns[ooa_hdr->lun_num]; 2682 ctl_ioctl_fill_ooa(lun, &cur_fill_num, ooa_hdr, 2683 entries); 2684 } 2685 mtx_unlock(&softc->ctl_lock); 2686 2687 ooa_hdr->fill_num = min(cur_fill_num, ooa_hdr->alloc_num); 2688 ooa_hdr->fill_len = ooa_hdr->fill_num * 2689 sizeof(struct ctl_ooa_entry); 2690 retval = copyout(entries, ooa_hdr->entries, ooa_hdr->fill_len); 2691 if (retval != 0) { 2692 printf("%s: error copying out %d bytes for OOA dump\n", 2693 __func__, ooa_hdr->fill_len); 2694 } 2695 2696 getbinuptime(&ooa_hdr->cur_bt); 2697 2698 if (cur_fill_num > ooa_hdr->alloc_num) { 2699 ooa_hdr->dropped_num = cur_fill_num -ooa_hdr->alloc_num; 2700 ooa_hdr->status = CTL_OOA_NEED_MORE_SPACE; 2701 } else { 2702 ooa_hdr->dropped_num = 0; 2703 ooa_hdr->status = CTL_OOA_OK; 2704 } 2705 2706 free(entries, M_CTL); 2707 break; 2708 } 2709 case CTL_DELAY_IO: { 2710 struct ctl_io_delay_info *delay_info; 2711 2712 delay_info = (struct ctl_io_delay_info *)addr; 2713 2714#ifdef CTL_IO_DELAY 2715 mtx_lock(&softc->ctl_lock); 2716 2717 if ((delay_info->lun_id >= CTL_MAX_LUNS) 2718 || (softc->ctl_luns[delay_info->lun_id] == NULL)) { 2719 delay_info->status = CTL_DELAY_STATUS_INVALID_LUN; 2720 } else { 2721 lun = softc->ctl_luns[delay_info->lun_id]; 2722 mtx_lock(&lun->lun_lock); 2723 2724 delay_info->status = CTL_DELAY_STATUS_OK; 2725 2726 switch (delay_info->delay_type) { 2727 case CTL_DELAY_TYPE_CONT: 2728 break; 2729 case CTL_DELAY_TYPE_ONESHOT: 2730 break; 2731 default: 2732 delay_info->status = 2733 CTL_DELAY_STATUS_INVALID_TYPE; 2734 break; 2735 } 2736 2737 switch (delay_info->delay_loc) { 2738 case CTL_DELAY_LOC_DATAMOVE: 2739 lun->delay_info.datamove_type = 2740 delay_info->delay_type; 2741 lun->delay_info.datamove_delay = 2742 delay_info->delay_secs; 2743 break; 2744 case CTL_DELAY_LOC_DONE: 2745 lun->delay_info.done_type = 2746 delay_info->delay_type; 2747 lun->delay_info.done_delay = 2748 delay_info->delay_secs; 2749 break; 2750 default: 2751 delay_info->status = 2752 CTL_DELAY_STATUS_INVALID_LOC; 2753 break; 2754 } 2755 mtx_unlock(&lun->lun_lock); 2756 } 2757 2758 mtx_unlock(&softc->ctl_lock); 2759#else 2760 delay_info->status = CTL_DELAY_STATUS_NOT_IMPLEMENTED; 2761#endif /* CTL_IO_DELAY */ 2762 break; 2763 } 2764 case CTL_GETSTATS: { 2765 struct ctl_stats *stats; 2766 int i; 2767 2768 stats = (struct ctl_stats *)addr; 2769 2770 if ((sizeof(struct ctl_lun_io_stats) * softc->num_luns) > 2771 stats->alloc_len) { 2772 stats->status = CTL_SS_NEED_MORE_SPACE; 2773 stats->num_luns = softc->num_luns; 2774 break; 2775 } 2776 /* 2777 * XXX KDM no locking here. If the LUN list changes, 2778 * things can blow up. 2779 */ 2780 i = 0; 2781 STAILQ_FOREACH(lun, &softc->lun_list, links) { 2782 retval = copyout(&lun->stats, &stats->lun_stats[i++], 2783 sizeof(lun->stats)); 2784 if (retval != 0) 2785 break; 2786 } 2787 stats->num_luns = softc->num_luns; 2788 stats->fill_len = sizeof(struct ctl_lun_io_stats) * 2789 softc->num_luns; 2790 stats->status = CTL_SS_OK; 2791#ifdef CTL_TIME_IO 2792 stats->flags = CTL_STATS_FLAG_TIME_VALID; 2793#else 2794 stats->flags = CTL_STATS_FLAG_NONE; 2795#endif 2796 getnanouptime(&stats->timestamp); 2797 break; 2798 } 2799 case CTL_ERROR_INJECT: { 2800 struct ctl_error_desc *err_desc, *new_err_desc; 2801 2802 err_desc = (struct ctl_error_desc *)addr; 2803 2804 new_err_desc = malloc(sizeof(*new_err_desc), M_CTL, 2805 M_WAITOK | M_ZERO); 2806 bcopy(err_desc, new_err_desc, sizeof(*new_err_desc)); 2807 2808 mtx_lock(&softc->ctl_lock); 2809 lun = softc->ctl_luns[err_desc->lun_id]; 2810 if (lun == NULL) { 2811 mtx_unlock(&softc->ctl_lock); 2812 free(new_err_desc, M_CTL); 2813 printf("%s: CTL_ERROR_INJECT: invalid LUN %ju\n", 2814 __func__, (uintmax_t)err_desc->lun_id); 2815 retval = EINVAL; 2816 break; 2817 } 2818 mtx_lock(&lun->lun_lock); 2819 mtx_unlock(&softc->ctl_lock); 2820 2821 /* 2822 * We could do some checking here to verify the validity 2823 * of the request, but given the complexity of error 2824 * injection requests, the checking logic would be fairly 2825 * complex. 2826 * 2827 * For now, if the request is invalid, it just won't get 2828 * executed and might get deleted. 2829 */ 2830 STAILQ_INSERT_TAIL(&lun->error_list, new_err_desc, links); 2831 2832 /* 2833 * XXX KDM check to make sure the serial number is unique, 2834 * in case we somehow manage to wrap. That shouldn't 2835 * happen for a very long time, but it's the right thing to 2836 * do. 2837 */ 2838 new_err_desc->serial = lun->error_serial; 2839 err_desc->serial = lun->error_serial; 2840 lun->error_serial++; 2841 2842 mtx_unlock(&lun->lun_lock); 2843 break; 2844 } 2845 case CTL_ERROR_INJECT_DELETE: { 2846 struct ctl_error_desc *delete_desc, *desc, *desc2; 2847 int delete_done; 2848 2849 delete_desc = (struct ctl_error_desc *)addr; 2850 delete_done = 0; 2851 2852 mtx_lock(&softc->ctl_lock); 2853 lun = softc->ctl_luns[delete_desc->lun_id]; 2854 if (lun == NULL) { 2855 mtx_unlock(&softc->ctl_lock); 2856 printf("%s: CTL_ERROR_INJECT_DELETE: invalid LUN %ju\n", 2857 __func__, (uintmax_t)delete_desc->lun_id); 2858 retval = EINVAL; 2859 break; 2860 } 2861 mtx_lock(&lun->lun_lock); 2862 mtx_unlock(&softc->ctl_lock); 2863 STAILQ_FOREACH_SAFE(desc, &lun->error_list, links, desc2) { 2864 if (desc->serial != delete_desc->serial) 2865 continue; 2866 2867 STAILQ_REMOVE(&lun->error_list, desc, ctl_error_desc, 2868 links); 2869 free(desc, M_CTL); 2870 delete_done = 1; 2871 } 2872 mtx_unlock(&lun->lun_lock); 2873 if (delete_done == 0) { 2874 printf("%s: CTL_ERROR_INJECT_DELETE: can't find " 2875 "error serial %ju on LUN %u\n", __func__, 2876 delete_desc->serial, delete_desc->lun_id); 2877 retval = EINVAL; 2878 break; 2879 } 2880 break; 2881 } 2882 case CTL_DUMP_STRUCTS: { 2883 int i, j, k; 2884 struct ctl_port *port; 2885 struct ctl_frontend *fe; 2886 2887 mtx_lock(&softc->ctl_lock); 2888 printf("CTL Persistent Reservation information start:\n"); 2889 for (i = 0; i < CTL_MAX_LUNS; i++) { 2890 lun = softc->ctl_luns[i]; 2891 2892 if ((lun == NULL) 2893 || ((lun->flags & CTL_LUN_DISABLED) != 0)) 2894 continue; 2895 2896 for (j = 0; j < CTL_MAX_PORTS; j++) { 2897 if (lun->pr_keys[j] == NULL) 2898 continue; 2899 for (k = 0; k < CTL_MAX_INIT_PER_PORT; k++){ 2900 if (lun->pr_keys[j][k] == 0) 2901 continue; 2902 printf(" LUN %d port %d iid %d key " 2903 "%#jx\n", i, j, k, 2904 (uintmax_t)lun->pr_keys[j][k]); 2905 } 2906 } 2907 } 2908 printf("CTL Persistent Reservation information end\n"); 2909 printf("CTL Ports:\n"); 2910 STAILQ_FOREACH(port, &softc->port_list, links) { 2911 printf(" Port %d '%s' Frontend '%s' Type %u pp %d vp %d WWNN " 2912 "%#jx WWPN %#jx\n", port->targ_port, port->port_name, 2913 port->frontend->name, port->port_type, 2914 port->physical_port, port->virtual_port, 2915 (uintmax_t)port->wwnn, (uintmax_t)port->wwpn); 2916 for (j = 0; j < CTL_MAX_INIT_PER_PORT; j++) { 2917 if (port->wwpn_iid[j].in_use == 0 && 2918 port->wwpn_iid[j].wwpn == 0 && 2919 port->wwpn_iid[j].name == NULL) 2920 continue; 2921 2922 printf(" iid %u use %d WWPN %#jx '%s'\n", 2923 j, port->wwpn_iid[j].in_use, 2924 (uintmax_t)port->wwpn_iid[j].wwpn, 2925 port->wwpn_iid[j].name); 2926 } 2927 } 2928 printf("CTL Port information end\n"); 2929 mtx_unlock(&softc->ctl_lock); 2930 /* 2931 * XXX KDM calling this without a lock. We'd likely want 2932 * to drop the lock before calling the frontend's dump 2933 * routine anyway. 2934 */ 2935 printf("CTL Frontends:\n"); 2936 STAILQ_FOREACH(fe, &softc->fe_list, links) { 2937 printf(" Frontend '%s'\n", fe->name); 2938 if (fe->fe_dump != NULL) 2939 fe->fe_dump(); 2940 } 2941 printf("CTL Frontend information end\n"); 2942 break; 2943 } 2944 case CTL_LUN_REQ: { 2945 struct ctl_lun_req *lun_req; 2946 struct ctl_backend_driver *backend; 2947 2948 lun_req = (struct ctl_lun_req *)addr; 2949 2950 backend = ctl_backend_find(lun_req->backend); 2951 if (backend == NULL) { 2952 lun_req->status = CTL_LUN_ERROR; 2953 snprintf(lun_req->error_str, 2954 sizeof(lun_req->error_str), 2955 "Backend \"%s\" not found.", 2956 lun_req->backend); 2957 break; 2958 } 2959 if (lun_req->num_be_args > 0) { 2960 lun_req->kern_be_args = ctl_copyin_args( 2961 lun_req->num_be_args, 2962 lun_req->be_args, 2963 lun_req->error_str, 2964 sizeof(lun_req->error_str)); 2965 if (lun_req->kern_be_args == NULL) { 2966 lun_req->status = CTL_LUN_ERROR; 2967 break; 2968 } 2969 } 2970 2971 retval = backend->ioctl(dev, cmd, addr, flag, td); 2972 2973 if (lun_req->num_be_args > 0) { 2974 ctl_copyout_args(lun_req->num_be_args, 2975 lun_req->kern_be_args); 2976 ctl_free_args(lun_req->num_be_args, 2977 lun_req->kern_be_args); 2978 } 2979 break; 2980 } 2981 case CTL_LUN_LIST: { 2982 struct sbuf *sb; 2983 struct ctl_lun_list *list; 2984 struct ctl_option *opt; 2985 2986 list = (struct ctl_lun_list *)addr; 2987 2988 /* 2989 * Allocate a fixed length sbuf here, based on the length 2990 * of the user's buffer. We could allocate an auto-extending 2991 * buffer, and then tell the user how much larger our 2992 * amount of data is than his buffer, but that presents 2993 * some problems: 2994 * 2995 * 1. The sbuf(9) routines use a blocking malloc, and so 2996 * we can't hold a lock while calling them with an 2997 * auto-extending buffer. 2998 * 2999 * 2. There is not currently a LUN reference counting 3000 * mechanism, outside of outstanding transactions on 3001 * the LUN's OOA queue. So a LUN could go away on us 3002 * while we're getting the LUN number, backend-specific 3003 * information, etc. Thus, given the way things 3004 * currently work, we need to hold the CTL lock while 3005 * grabbing LUN information. 3006 * 3007 * So, from the user's standpoint, the best thing to do is 3008 * allocate what he thinks is a reasonable buffer length, 3009 * and then if he gets a CTL_LUN_LIST_NEED_MORE_SPACE error, 3010 * double the buffer length and try again. (And repeat 3011 * that until he succeeds.) 3012 */ 3013 sb = sbuf_new(NULL, NULL, list->alloc_len, SBUF_FIXEDLEN); 3014 if (sb == NULL) { 3015 list->status = CTL_LUN_LIST_ERROR; 3016 snprintf(list->error_str, sizeof(list->error_str), 3017 "Unable to allocate %d bytes for LUN list", 3018 list->alloc_len); 3019 break; 3020 } 3021 3022 sbuf_printf(sb, "<ctllunlist>\n"); 3023 3024 mtx_lock(&softc->ctl_lock); 3025 STAILQ_FOREACH(lun, &softc->lun_list, links) { 3026 mtx_lock(&lun->lun_lock); 3027 retval = sbuf_printf(sb, "<lun id=\"%ju\">\n", 3028 (uintmax_t)lun->lun); 3029 3030 /* 3031 * Bail out as soon as we see that we've overfilled 3032 * the buffer. 3033 */ 3034 if (retval != 0) 3035 break; 3036 3037 retval = sbuf_printf(sb, "\t<backend_type>%s" 3038 "</backend_type>\n", 3039 (lun->backend == NULL) ? "none" : 3040 lun->backend->name); 3041 3042 if (retval != 0) 3043 break; 3044 3045 retval = sbuf_printf(sb, "\t<lun_type>%d</lun_type>\n", 3046 lun->be_lun->lun_type); 3047 3048 if (retval != 0) 3049 break; 3050 3051 if (lun->backend == NULL) { 3052 retval = sbuf_printf(sb, "</lun>\n"); 3053 if (retval != 0) 3054 break; 3055 continue; 3056 } 3057 3058 retval = sbuf_printf(sb, "\t<size>%ju</size>\n", 3059 (lun->be_lun->maxlba > 0) ? 3060 lun->be_lun->maxlba + 1 : 0); 3061 3062 if (retval != 0) 3063 break; 3064 3065 retval = sbuf_printf(sb, "\t<blocksize>%u</blocksize>\n", 3066 lun->be_lun->blocksize); 3067 3068 if (retval != 0) 3069 break; 3070 3071 retval = sbuf_printf(sb, "\t<serial_number>"); 3072 3073 if (retval != 0) 3074 break; 3075 3076 retval = ctl_sbuf_printf_esc(sb, 3077 lun->be_lun->serial_num, 3078 sizeof(lun->be_lun->serial_num)); 3079 3080 if (retval != 0) 3081 break; 3082 3083 retval = sbuf_printf(sb, "</serial_number>\n"); 3084 3085 if (retval != 0) 3086 break; 3087 3088 retval = sbuf_printf(sb, "\t<device_id>"); 3089 3090 if (retval != 0) 3091 break; 3092 3093 retval = ctl_sbuf_printf_esc(sb, 3094 lun->be_lun->device_id, 3095 sizeof(lun->be_lun->device_id)); 3096 3097 if (retval != 0) 3098 break; 3099 3100 retval = sbuf_printf(sb, "</device_id>\n"); 3101 3102 if (retval != 0) 3103 break; 3104 3105 if (lun->backend->lun_info != NULL) { 3106 retval = lun->backend->lun_info(lun->be_lun->be_lun, sb); 3107 if (retval != 0) 3108 break; 3109 } 3110 STAILQ_FOREACH(opt, &lun->be_lun->options, links) { 3111 retval = sbuf_printf(sb, "\t<%s>%s</%s>\n", 3112 opt->name, opt->value, opt->name); 3113 if (retval != 0) 3114 break; 3115 } 3116 3117 retval = sbuf_printf(sb, "</lun>\n"); 3118 3119 if (retval != 0) 3120 break; 3121 mtx_unlock(&lun->lun_lock); 3122 } 3123 if (lun != NULL) 3124 mtx_unlock(&lun->lun_lock); 3125 mtx_unlock(&softc->ctl_lock); 3126 3127 if ((retval != 0) 3128 || ((retval = sbuf_printf(sb, "</ctllunlist>\n")) != 0)) { 3129 retval = 0; 3130 sbuf_delete(sb); 3131 list->status = CTL_LUN_LIST_NEED_MORE_SPACE; 3132 snprintf(list->error_str, sizeof(list->error_str), 3133 "Out of space, %d bytes is too small", 3134 list->alloc_len); 3135 break; 3136 } 3137 3138 sbuf_finish(sb); 3139 3140 retval = copyout(sbuf_data(sb), list->lun_xml, 3141 sbuf_len(sb) + 1); 3142 3143 list->fill_len = sbuf_len(sb) + 1; 3144 list->status = CTL_LUN_LIST_OK; 3145 sbuf_delete(sb); 3146 break; 3147 } 3148 case CTL_ISCSI: { 3149 struct ctl_iscsi *ci; 3150 struct ctl_frontend *fe; 3151 3152 ci = (struct ctl_iscsi *)addr; 3153 3154 fe = ctl_frontend_find("iscsi"); 3155 if (fe == NULL) { 3156 ci->status = CTL_ISCSI_ERROR; 3157 snprintf(ci->error_str, sizeof(ci->error_str), 3158 "Frontend \"iscsi\" not found."); 3159 break; 3160 } 3161 3162 retval = fe->ioctl(dev, cmd, addr, flag, td); 3163 break; 3164 } 3165 case CTL_PORT_REQ: { 3166 struct ctl_req *req; 3167 struct ctl_frontend *fe; 3168 3169 req = (struct ctl_req *)addr; 3170 3171 fe = ctl_frontend_find(req->driver); 3172 if (fe == NULL) { 3173 req->status = CTL_LUN_ERROR; 3174 snprintf(req->error_str, sizeof(req->error_str), 3175 "Frontend \"%s\" not found.", req->driver); 3176 break; 3177 } 3178 if (req->num_args > 0) { 3179 req->kern_args = ctl_copyin_args(req->num_args, 3180 req->args, req->error_str, sizeof(req->error_str)); 3181 if (req->kern_args == NULL) { 3182 req->status = CTL_LUN_ERROR; 3183 break; 3184 } 3185 } 3186 3187 if (fe->ioctl) 3188 retval = fe->ioctl(dev, cmd, addr, flag, td); 3189 else 3190 retval = ENODEV; 3191 3192 if (req->num_args > 0) { 3193 ctl_copyout_args(req->num_args, req->kern_args); 3194 ctl_free_args(req->num_args, req->kern_args); 3195 } 3196 break; 3197 } 3198 case CTL_PORT_LIST: { 3199 struct sbuf *sb; 3200 struct ctl_port *port; 3201 struct ctl_lun_list *list; 3202 struct ctl_option *opt; 3203 int j; 3204 uint32_t plun; 3205 3206 list = (struct ctl_lun_list *)addr; 3207 3208 sb = sbuf_new(NULL, NULL, list->alloc_len, SBUF_FIXEDLEN); 3209 if (sb == NULL) { 3210 list->status = CTL_LUN_LIST_ERROR; 3211 snprintf(list->error_str, sizeof(list->error_str), 3212 "Unable to allocate %d bytes for LUN list", 3213 list->alloc_len); 3214 break; 3215 } 3216 3217 sbuf_printf(sb, "<ctlportlist>\n"); 3218 3219 mtx_lock(&softc->ctl_lock); 3220 STAILQ_FOREACH(port, &softc->port_list, links) { 3221 retval = sbuf_printf(sb, "<targ_port id=\"%ju\">\n", 3222 (uintmax_t)port->targ_port); 3223 3224 /* 3225 * Bail out as soon as we see that we've overfilled 3226 * the buffer. 3227 */ 3228 if (retval != 0) 3229 break; 3230 3231 retval = sbuf_printf(sb, "\t<frontend_type>%s" 3232 "</frontend_type>\n", port->frontend->name); 3233 if (retval != 0) 3234 break; 3235 3236 retval = sbuf_printf(sb, "\t<port_type>%d</port_type>\n", 3237 port->port_type); 3238 if (retval != 0) 3239 break; 3240 3241 retval = sbuf_printf(sb, "\t<online>%s</online>\n", 3242 (port->status & CTL_PORT_STATUS_ONLINE) ? "YES" : "NO"); 3243 if (retval != 0) 3244 break; 3245 3246 retval = sbuf_printf(sb, "\t<port_name>%s</port_name>\n", 3247 port->port_name); 3248 if (retval != 0) 3249 break; 3250 3251 retval = sbuf_printf(sb, "\t<physical_port>%d</physical_port>\n", 3252 port->physical_port); 3253 if (retval != 0) 3254 break; 3255 3256 retval = sbuf_printf(sb, "\t<virtual_port>%d</virtual_port>\n", 3257 port->virtual_port); 3258 if (retval != 0) 3259 break; 3260 3261 if (port->target_devid != NULL) { 3262 sbuf_printf(sb, "\t<target>"); 3263 ctl_id_sbuf(port->target_devid, sb); 3264 sbuf_printf(sb, "</target>\n"); 3265 } 3266 3267 if (port->port_devid != NULL) { 3268 sbuf_printf(sb, "\t<port>"); 3269 ctl_id_sbuf(port->port_devid, sb); 3270 sbuf_printf(sb, "</port>\n"); 3271 } 3272 3273 if (port->port_info != NULL) { 3274 retval = port->port_info(port->onoff_arg, sb); 3275 if (retval != 0) 3276 break; 3277 } 3278 STAILQ_FOREACH(opt, &port->options, links) { 3279 retval = sbuf_printf(sb, "\t<%s>%s</%s>\n", 3280 opt->name, opt->value, opt->name); 3281 if (retval != 0) 3282 break; 3283 } 3284 3285 if (port->lun_map != NULL) { 3286 sbuf_printf(sb, "\t<lun_map>on</lun_map>\n"); 3287 for (j = 0; j < CTL_MAX_LUNS; j++) { 3288 plun = ctl_lun_map_from_port(port, j); 3289 if (plun >= CTL_MAX_LUNS) 3290 continue; 3291 sbuf_printf(sb, 3292 "\t<lun id=\"%u\">%u</lun>\n", 3293 j, plun); 3294 } 3295 } 3296 3297 for (j = 0; j < CTL_MAX_INIT_PER_PORT; j++) { 3298 if (port->wwpn_iid[j].in_use == 0 || 3299 (port->wwpn_iid[j].wwpn == 0 && 3300 port->wwpn_iid[j].name == NULL)) 3301 continue; 3302 3303 if (port->wwpn_iid[j].name != NULL) 3304 retval = sbuf_printf(sb, 3305 "\t<initiator id=\"%u\">%s</initiator>\n", 3306 j, port->wwpn_iid[j].name); 3307 else 3308 retval = sbuf_printf(sb, 3309 "\t<initiator id=\"%u\">naa.%08jx</initiator>\n", 3310 j, port->wwpn_iid[j].wwpn); 3311 if (retval != 0) 3312 break; 3313 } 3314 if (retval != 0) 3315 break; 3316 3317 retval = sbuf_printf(sb, "</targ_port>\n"); 3318 if (retval != 0) 3319 break; 3320 } 3321 mtx_unlock(&softc->ctl_lock); 3322 3323 if ((retval != 0) 3324 || ((retval = sbuf_printf(sb, "</ctlportlist>\n")) != 0)) { 3325 retval = 0; 3326 sbuf_delete(sb); 3327 list->status = CTL_LUN_LIST_NEED_MORE_SPACE; 3328 snprintf(list->error_str, sizeof(list->error_str), 3329 "Out of space, %d bytes is too small", 3330 list->alloc_len); 3331 break; 3332 } 3333 3334 sbuf_finish(sb); 3335 3336 retval = copyout(sbuf_data(sb), list->lun_xml, 3337 sbuf_len(sb) + 1); 3338 3339 list->fill_len = sbuf_len(sb) + 1; 3340 list->status = CTL_LUN_LIST_OK; 3341 sbuf_delete(sb); 3342 break; 3343 } 3344 case CTL_LUN_MAP: { 3345 struct ctl_lun_map *lm = (struct ctl_lun_map *)addr; 3346 struct ctl_port *port; 3347 3348 mtx_lock(&softc->ctl_lock); 3349 if (lm->port < softc->port_min || 3350 lm->port >= softc->port_max || 3351 (port = softc->ctl_ports[lm->port]) == NULL) { 3352 mtx_unlock(&softc->ctl_lock); 3353 return (ENXIO); 3354 } 3355 if (port->status & CTL_PORT_STATUS_ONLINE) { 3356 STAILQ_FOREACH(lun, &softc->lun_list, links) { 3357 if (ctl_lun_map_to_port(port, lun->lun) >= 3358 CTL_MAX_LUNS) 3359 continue; 3360 mtx_lock(&lun->lun_lock); 3361 ctl_est_ua_port(lun, lm->port, -1, 3362 CTL_UA_LUN_CHANGE); 3363 mtx_unlock(&lun->lun_lock); 3364 } 3365 } 3366 mtx_unlock(&softc->ctl_lock); // XXX: port_enable sleeps 3367 if (lm->plun < CTL_MAX_LUNS) { 3368 if (lm->lun == UINT32_MAX) 3369 retval = ctl_lun_map_unset(port, lm->plun); 3370 else if (lm->lun < CTL_MAX_LUNS && 3371 softc->ctl_luns[lm->lun] != NULL) 3372 retval = ctl_lun_map_set(port, lm->plun, lm->lun); 3373 else 3374 return (ENXIO); 3375 } else if (lm->plun == UINT32_MAX) { 3376 if (lm->lun == UINT32_MAX) 3377 retval = ctl_lun_map_deinit(port); 3378 else 3379 retval = ctl_lun_map_init(port); 3380 } else 3381 return (ENXIO); 3382 if (port->status & CTL_PORT_STATUS_ONLINE) 3383 ctl_isc_announce_port(port); 3384 break; 3385 } 3386 default: { 3387 /* XXX KDM should we fix this? */ 3388#if 0 3389 struct ctl_backend_driver *backend; 3390 unsigned int type; 3391 int found; 3392 3393 found = 0; 3394 3395 /* 3396 * We encode the backend type as the ioctl type for backend 3397 * ioctls. So parse it out here, and then search for a 3398 * backend of this type. 3399 */ 3400 type = _IOC_TYPE(cmd); 3401 3402 STAILQ_FOREACH(backend, &softc->be_list, links) { 3403 if (backend->type == type) { 3404 found = 1; 3405 break; 3406 } 3407 } 3408 if (found == 0) { 3409 printf("ctl: unknown ioctl command %#lx or backend " 3410 "%d\n", cmd, type); 3411 retval = EINVAL; 3412 break; 3413 } 3414 retval = backend->ioctl(dev, cmd, addr, flag, td); 3415#endif 3416 retval = ENOTTY; 3417 break; 3418 } 3419 } 3420 return (retval); 3421} 3422 3423uint32_t 3424ctl_get_initindex(struct ctl_nexus *nexus) 3425{ 3426 return (nexus->initid + (nexus->targ_port * CTL_MAX_INIT_PER_PORT)); 3427} 3428 3429int 3430ctl_lun_map_init(struct ctl_port *port) 3431{ 3432 struct ctl_softc *softc = port->ctl_softc; 3433 struct ctl_lun *lun; 3434 uint32_t i; 3435 3436 if (port->lun_map == NULL) 3437 port->lun_map = malloc(sizeof(uint32_t) * CTL_MAX_LUNS, 3438 M_CTL, M_NOWAIT); 3439 if (port->lun_map == NULL) 3440 return (ENOMEM); 3441 for (i = 0; i < CTL_MAX_LUNS; i++) 3442 port->lun_map[i] = UINT32_MAX; 3443 if (port->status & CTL_PORT_STATUS_ONLINE) { 3444 if (port->lun_disable != NULL) { 3445 STAILQ_FOREACH(lun, &softc->lun_list, links) 3446 port->lun_disable(port->targ_lun_arg, lun->lun); 3447 } 3448 ctl_isc_announce_port(port); 3449 } 3450 return (0); 3451} 3452 3453int 3454ctl_lun_map_deinit(struct ctl_port *port) 3455{ 3456 struct ctl_softc *softc = port->ctl_softc; 3457 struct ctl_lun *lun; 3458 3459 if (port->lun_map == NULL) 3460 return (0); 3461 free(port->lun_map, M_CTL); 3462 port->lun_map = NULL; 3463 if (port->status & CTL_PORT_STATUS_ONLINE) { 3464 if (port->lun_enable != NULL) { 3465 STAILQ_FOREACH(lun, &softc->lun_list, links) 3466 port->lun_enable(port->targ_lun_arg, lun->lun); 3467 } 3468 ctl_isc_announce_port(port); 3469 } 3470 return (0); 3471} 3472 3473int 3474ctl_lun_map_set(struct ctl_port *port, uint32_t plun, uint32_t glun) 3475{ 3476 int status; 3477 uint32_t old; 3478 3479 if (port->lun_map == NULL) { 3480 status = ctl_lun_map_init(port); 3481 if (status != 0) 3482 return (status); 3483 } 3484 old = port->lun_map[plun]; 3485 port->lun_map[plun] = glun; 3486 if ((port->status & CTL_PORT_STATUS_ONLINE) && old >= CTL_MAX_LUNS) { 3487 if (port->lun_enable != NULL) 3488 port->lun_enable(port->targ_lun_arg, plun); 3489 ctl_isc_announce_port(port); 3490 } 3491 return (0); 3492} 3493 3494int 3495ctl_lun_map_unset(struct ctl_port *port, uint32_t plun) 3496{ 3497 uint32_t old; 3498 3499 if (port->lun_map == NULL) 3500 return (0); 3501 old = port->lun_map[plun]; 3502 port->lun_map[plun] = UINT32_MAX; 3503 if ((port->status & CTL_PORT_STATUS_ONLINE) && old < CTL_MAX_LUNS) { 3504 if (port->lun_disable != NULL) 3505 port->lun_disable(port->targ_lun_arg, plun); 3506 ctl_isc_announce_port(port); 3507 } 3508 return (0); 3509} 3510 3511uint32_t 3512ctl_lun_map_from_port(struct ctl_port *port, uint32_t lun_id) 3513{ 3514 3515 if (port == NULL) 3516 return (UINT32_MAX); 3517 if (port->lun_map == NULL || lun_id >= CTL_MAX_LUNS) 3518 return (lun_id); 3519 return (port->lun_map[lun_id]); 3520} 3521 3522uint32_t 3523ctl_lun_map_to_port(struct ctl_port *port, uint32_t lun_id) 3524{ 3525 uint32_t i; 3526 3527 if (port == NULL) 3528 return (UINT32_MAX); 3529 if (port->lun_map == NULL) 3530 return (lun_id); 3531 for (i = 0; i < CTL_MAX_LUNS; i++) { 3532 if (port->lun_map[i] == lun_id) 3533 return (i); 3534 } 3535 return (UINT32_MAX); 3536} 3537 3538static struct ctl_port * 3539ctl_io_port(struct ctl_io_hdr *io_hdr) 3540{ 3541 3542 return (control_softc->ctl_ports[io_hdr->nexus.targ_port]); 3543} 3544 3545int 3546ctl_ffz(uint32_t *mask, uint32_t first, uint32_t last) 3547{ 3548 int i; 3549 3550 for (i = first; i < last; i++) { 3551 if ((mask[i / 32] & (1 << (i % 32))) == 0) 3552 return (i); 3553 } 3554 return (-1); 3555} 3556 3557int 3558ctl_set_mask(uint32_t *mask, uint32_t bit) 3559{ 3560 uint32_t chunk, piece; 3561 3562 chunk = bit >> 5; 3563 piece = bit % (sizeof(uint32_t) * 8); 3564 3565 if ((mask[chunk] & (1 << piece)) != 0) 3566 return (-1); 3567 else 3568 mask[chunk] |= (1 << piece); 3569 3570 return (0); 3571} 3572 3573int 3574ctl_clear_mask(uint32_t *mask, uint32_t bit) 3575{ 3576 uint32_t chunk, piece; 3577 3578 chunk = bit >> 5; 3579 piece = bit % (sizeof(uint32_t) * 8); 3580 3581 if ((mask[chunk] & (1 << piece)) == 0) 3582 return (-1); 3583 else 3584 mask[chunk] &= ~(1 << piece); 3585 3586 return (0); 3587} 3588 3589int 3590ctl_is_set(uint32_t *mask, uint32_t bit) 3591{ 3592 uint32_t chunk, piece; 3593 3594 chunk = bit >> 5; 3595 piece = bit % (sizeof(uint32_t) * 8); 3596 3597 if ((mask[chunk] & (1 << piece)) == 0) 3598 return (0); 3599 else 3600 return (1); 3601} 3602 3603static uint64_t 3604ctl_get_prkey(struct ctl_lun *lun, uint32_t residx) 3605{ 3606 uint64_t *t; 3607 3608 t = lun->pr_keys[residx/CTL_MAX_INIT_PER_PORT]; 3609 if (t == NULL) 3610 return (0); 3611 return (t[residx % CTL_MAX_INIT_PER_PORT]); 3612} 3613 3614static void 3615ctl_clr_prkey(struct ctl_lun *lun, uint32_t residx) 3616{ 3617 uint64_t *t; 3618 3619 t = lun->pr_keys[residx/CTL_MAX_INIT_PER_PORT]; 3620 if (t == NULL) 3621 return; 3622 t[residx % CTL_MAX_INIT_PER_PORT] = 0; 3623} 3624 3625static void 3626ctl_alloc_prkey(struct ctl_lun *lun, uint32_t residx) 3627{ 3628 uint64_t *p; 3629 u_int i; 3630 3631 i = residx/CTL_MAX_INIT_PER_PORT; 3632 if (lun->pr_keys[i] != NULL) 3633 return; 3634 mtx_unlock(&lun->lun_lock); 3635 p = malloc(sizeof(uint64_t) * CTL_MAX_INIT_PER_PORT, M_CTL, 3636 M_WAITOK | M_ZERO); 3637 mtx_lock(&lun->lun_lock); 3638 if (lun->pr_keys[i] == NULL) 3639 lun->pr_keys[i] = p; 3640 else 3641 free(p, M_CTL); 3642} 3643 3644static void 3645ctl_set_prkey(struct ctl_lun *lun, uint32_t residx, uint64_t key) 3646{ 3647 uint64_t *t; 3648 3649 t = lun->pr_keys[residx/CTL_MAX_INIT_PER_PORT]; 3650 KASSERT(t != NULL, ("prkey %d is not allocated", residx)); 3651 t[residx % CTL_MAX_INIT_PER_PORT] = key; 3652} 3653 3654/* 3655 * ctl_softc, pool_name, total_ctl_io are passed in. 3656 * npool is passed out. 3657 */ 3658int 3659ctl_pool_create(struct ctl_softc *ctl_softc, const char *pool_name, 3660 uint32_t total_ctl_io, void **npool) 3661{ 3662#ifdef IO_POOLS 3663 struct ctl_io_pool *pool; 3664 3665 pool = (struct ctl_io_pool *)malloc(sizeof(*pool), M_CTL, 3666 M_NOWAIT | M_ZERO); 3667 if (pool == NULL) 3668 return (ENOMEM); 3669 3670 snprintf(pool->name, sizeof(pool->name), "CTL IO %s", pool_name); 3671 pool->ctl_softc = ctl_softc; 3672 pool->zone = uma_zsecond_create(pool->name, NULL, 3673 NULL, NULL, NULL, ctl_softc->io_zone); 3674 /* uma_prealloc(pool->zone, total_ctl_io); */ 3675 3676 *npool = pool; 3677#else 3678 *npool = ctl_softc->io_zone; 3679#endif 3680 return (0); 3681} 3682 3683void 3684ctl_pool_free(struct ctl_io_pool *pool) 3685{ 3686 3687 if (pool == NULL) 3688 return; 3689 3690#ifdef IO_POOLS 3691 uma_zdestroy(pool->zone); 3692 free(pool, M_CTL); 3693#endif 3694} 3695 3696union ctl_io * 3697ctl_alloc_io(void *pool_ref) 3698{ 3699 union ctl_io *io; 3700#ifdef IO_POOLS 3701 struct ctl_io_pool *pool = (struct ctl_io_pool *)pool_ref; 3702 3703 io = uma_zalloc(pool->zone, M_WAITOK); 3704#else 3705 io = uma_zalloc((uma_zone_t)pool_ref, M_WAITOK); 3706#endif 3707 if (io != NULL) 3708 io->io_hdr.pool = pool_ref; 3709 return (io); 3710} 3711 3712union ctl_io * 3713ctl_alloc_io_nowait(void *pool_ref) 3714{ 3715 union ctl_io *io; 3716#ifdef IO_POOLS 3717 struct ctl_io_pool *pool = (struct ctl_io_pool *)pool_ref; 3718 3719 io = uma_zalloc(pool->zone, M_NOWAIT); 3720#else 3721 io = uma_zalloc((uma_zone_t)pool_ref, M_NOWAIT); 3722#endif 3723 if (io != NULL) 3724 io->io_hdr.pool = pool_ref; 3725 return (io); 3726} 3727 3728void 3729ctl_free_io(union ctl_io *io) 3730{ 3731#ifdef IO_POOLS 3732 struct ctl_io_pool *pool; 3733#endif 3734 3735 if (io == NULL) 3736 return; 3737 3738#ifdef IO_POOLS 3739 pool = (struct ctl_io_pool *)io->io_hdr.pool; 3740 uma_zfree(pool->zone, io); 3741#else 3742 uma_zfree((uma_zone_t)io->io_hdr.pool, io); 3743#endif 3744} 3745 3746void 3747ctl_zero_io(union ctl_io *io) 3748{ 3749 void *pool_ref; 3750 3751 if (io == NULL) 3752 return; 3753 3754 /* 3755 * May need to preserve linked list pointers at some point too. 3756 */ 3757 pool_ref = io->io_hdr.pool; 3758 memset(io, 0, sizeof(*io)); 3759 io->io_hdr.pool = pool_ref; 3760} 3761 3762int 3763ctl_expand_number(const char *buf, uint64_t *num) 3764{ 3765 char *endptr; 3766 uint64_t number; 3767 unsigned shift; 3768 3769 number = strtoq(buf, &endptr, 0); 3770 3771 switch (tolower((unsigned char)*endptr)) { 3772 case 'e': 3773 shift = 60; 3774 break; 3775 case 'p': 3776 shift = 50; 3777 break; 3778 case 't': 3779 shift = 40; 3780 break; 3781 case 'g': 3782 shift = 30; 3783 break; 3784 case 'm': 3785 shift = 20; 3786 break; 3787 case 'k': 3788 shift = 10; 3789 break; 3790 case 'b': 3791 case '\0': /* No unit. */ 3792 *num = number; 3793 return (0); 3794 default: 3795 /* Unrecognized unit. */ 3796 return (-1); 3797 } 3798 3799 if ((number << shift) >> shift != number) { 3800 /* Overflow */ 3801 return (-1); 3802 } 3803 *num = number << shift; 3804 return (0); 3805} 3806 3807 3808/* 3809 * This routine could be used in the future to load default and/or saved 3810 * mode page parameters for a particuar lun. 3811 */ 3812static int 3813ctl_init_page_index(struct ctl_lun *lun) 3814{ 3815 int i; 3816 struct ctl_page_index *page_index; 3817 const char *value; 3818 uint64_t ival; 3819 3820 memcpy(&lun->mode_pages.index, page_index_template, 3821 sizeof(page_index_template)); 3822 3823 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 3824 3825 page_index = &lun->mode_pages.index[i]; 3826 if (lun->be_lun->lun_type == T_DIRECT && 3827 (page_index->page_flags & CTL_PAGE_FLAG_DIRECT) == 0) 3828 continue; 3829 if (lun->be_lun->lun_type == T_PROCESSOR && 3830 (page_index->page_flags & CTL_PAGE_FLAG_PROC) == 0) 3831 continue; 3832 if (lun->be_lun->lun_type == T_CDROM && 3833 (page_index->page_flags & CTL_PAGE_FLAG_CDROM) == 0) 3834 continue; 3835 3836 switch (page_index->page_code & SMPH_PC_MASK) { 3837 case SMS_RW_ERROR_RECOVERY_PAGE: { 3838 if (page_index->subpage != SMS_SUBPAGE_PAGE_0) 3839 panic("subpage is incorrect!"); 3840 memcpy(&lun->mode_pages.rw_er_page[CTL_PAGE_CURRENT], 3841 &rw_er_page_default, 3842 sizeof(rw_er_page_default)); 3843 memcpy(&lun->mode_pages.rw_er_page[CTL_PAGE_CHANGEABLE], 3844 &rw_er_page_changeable, 3845 sizeof(rw_er_page_changeable)); 3846 memcpy(&lun->mode_pages.rw_er_page[CTL_PAGE_DEFAULT], 3847 &rw_er_page_default, 3848 sizeof(rw_er_page_default)); 3849 memcpy(&lun->mode_pages.rw_er_page[CTL_PAGE_SAVED], 3850 &rw_er_page_default, 3851 sizeof(rw_er_page_default)); 3852 page_index->page_data = 3853 (uint8_t *)lun->mode_pages.rw_er_page; 3854 break; 3855 } 3856 case SMS_FORMAT_DEVICE_PAGE: { 3857 struct scsi_format_page *format_page; 3858 3859 if (page_index->subpage != SMS_SUBPAGE_PAGE_0) 3860 panic("subpage is incorrect!"); 3861 3862 /* 3863 * Sectors per track are set above. Bytes per 3864 * sector need to be set here on a per-LUN basis. 3865 */ 3866 memcpy(&lun->mode_pages.format_page[CTL_PAGE_CURRENT], 3867 &format_page_default, 3868 sizeof(format_page_default)); 3869 memcpy(&lun->mode_pages.format_page[ 3870 CTL_PAGE_CHANGEABLE], &format_page_changeable, 3871 sizeof(format_page_changeable)); 3872 memcpy(&lun->mode_pages.format_page[CTL_PAGE_DEFAULT], 3873 &format_page_default, 3874 sizeof(format_page_default)); 3875 memcpy(&lun->mode_pages.format_page[CTL_PAGE_SAVED], 3876 &format_page_default, 3877 sizeof(format_page_default)); 3878 3879 format_page = &lun->mode_pages.format_page[ 3880 CTL_PAGE_CURRENT]; 3881 scsi_ulto2b(lun->be_lun->blocksize, 3882 format_page->bytes_per_sector); 3883 3884 format_page = &lun->mode_pages.format_page[ 3885 CTL_PAGE_DEFAULT]; 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_SAVED]; 3891 scsi_ulto2b(lun->be_lun->blocksize, 3892 format_page->bytes_per_sector); 3893 3894 page_index->page_data = 3895 (uint8_t *)lun->mode_pages.format_page; 3896 break; 3897 } 3898 case SMS_RIGID_DISK_PAGE: { 3899 struct scsi_rigid_disk_page *rigid_disk_page; 3900 uint32_t sectors_per_cylinder; 3901 uint64_t cylinders; 3902#ifndef __XSCALE__ 3903 int shift; 3904#endif /* !__XSCALE__ */ 3905 3906 if (page_index->subpage != SMS_SUBPAGE_PAGE_0) 3907 panic("invalid subpage value %d", 3908 page_index->subpage); 3909 3910 /* 3911 * Rotation rate and sectors per track are set 3912 * above. We calculate the cylinders here based on 3913 * capacity. Due to the number of heads and 3914 * sectors per track we're using, smaller arrays 3915 * may turn out to have 0 cylinders. Linux and 3916 * FreeBSD don't pay attention to these mode pages 3917 * to figure out capacity, but Solaris does. It 3918 * seems to deal with 0 cylinders just fine, and 3919 * works out a fake geometry based on the capacity. 3920 */ 3921 memcpy(&lun->mode_pages.rigid_disk_page[ 3922 CTL_PAGE_DEFAULT], &rigid_disk_page_default, 3923 sizeof(rigid_disk_page_default)); 3924 memcpy(&lun->mode_pages.rigid_disk_page[ 3925 CTL_PAGE_CHANGEABLE],&rigid_disk_page_changeable, 3926 sizeof(rigid_disk_page_changeable)); 3927 3928 sectors_per_cylinder = CTL_DEFAULT_SECTORS_PER_TRACK * 3929 CTL_DEFAULT_HEADS; 3930 3931 /* 3932 * The divide method here will be more accurate, 3933 * probably, but results in floating point being 3934 * used in the kernel on i386 (__udivdi3()). On the 3935 * XScale, though, __udivdi3() is implemented in 3936 * software. 3937 * 3938 * The shift method for cylinder calculation is 3939 * accurate if sectors_per_cylinder is a power of 3940 * 2. Otherwise it might be slightly off -- you 3941 * might have a bit of a truncation problem. 3942 */ 3943#ifdef __XSCALE__ 3944 cylinders = (lun->be_lun->maxlba + 1) / 3945 sectors_per_cylinder; 3946#else 3947 for (shift = 31; shift > 0; shift--) { 3948 if (sectors_per_cylinder & (1 << shift)) 3949 break; 3950 } 3951 cylinders = (lun->be_lun->maxlba + 1) >> shift; 3952#endif 3953 3954 /* 3955 * We've basically got 3 bytes, or 24 bits for the 3956 * cylinder size in the mode page. If we're over, 3957 * just round down to 2^24. 3958 */ 3959 if (cylinders > 0xffffff) 3960 cylinders = 0xffffff; 3961 3962 rigid_disk_page = &lun->mode_pages.rigid_disk_page[ 3963 CTL_PAGE_DEFAULT]; 3964 scsi_ulto3b(cylinders, rigid_disk_page->cylinders); 3965 3966 if ((value = ctl_get_opt(&lun->be_lun->options, 3967 "rpm")) != NULL) { 3968 scsi_ulto2b(strtol(value, NULL, 0), 3969 rigid_disk_page->rotation_rate); 3970 } 3971 3972 memcpy(&lun->mode_pages.rigid_disk_page[CTL_PAGE_CURRENT], 3973 &lun->mode_pages.rigid_disk_page[CTL_PAGE_DEFAULT], 3974 sizeof(rigid_disk_page_default)); 3975 memcpy(&lun->mode_pages.rigid_disk_page[CTL_PAGE_SAVED], 3976 &lun->mode_pages.rigid_disk_page[CTL_PAGE_DEFAULT], 3977 sizeof(rigid_disk_page_default)); 3978 3979 page_index->page_data = 3980 (uint8_t *)lun->mode_pages.rigid_disk_page; 3981 break; 3982 } 3983 case SMS_CACHING_PAGE: { 3984 struct scsi_caching_page *caching_page; 3985 3986 if (page_index->subpage != SMS_SUBPAGE_PAGE_0) 3987 panic("invalid subpage value %d", 3988 page_index->subpage); 3989 memcpy(&lun->mode_pages.caching_page[CTL_PAGE_DEFAULT], 3990 &caching_page_default, 3991 sizeof(caching_page_default)); 3992 memcpy(&lun->mode_pages.caching_page[ 3993 CTL_PAGE_CHANGEABLE], &caching_page_changeable, 3994 sizeof(caching_page_changeable)); 3995 memcpy(&lun->mode_pages.caching_page[CTL_PAGE_SAVED], 3996 &caching_page_default, 3997 sizeof(caching_page_default)); 3998 caching_page = &lun->mode_pages.caching_page[ 3999 CTL_PAGE_SAVED]; 4000 value = ctl_get_opt(&lun->be_lun->options, "writecache"); 4001 if (value != NULL && strcmp(value, "off") == 0) 4002 caching_page->flags1 &= ~SCP_WCE; 4003 value = ctl_get_opt(&lun->be_lun->options, "readcache"); 4004 if (value != NULL && strcmp(value, "off") == 0) 4005 caching_page->flags1 |= SCP_RCD; 4006 memcpy(&lun->mode_pages.caching_page[CTL_PAGE_CURRENT], 4007 &lun->mode_pages.caching_page[CTL_PAGE_SAVED], 4008 sizeof(caching_page_default)); 4009 page_index->page_data = 4010 (uint8_t *)lun->mode_pages.caching_page; 4011 break; 4012 } 4013 case SMS_CONTROL_MODE_PAGE: { 4014 switch (page_index->subpage) { 4015 case SMS_SUBPAGE_PAGE_0: { 4016 struct scsi_control_page *control_page; 4017 4018 memcpy(&lun->mode_pages.control_page[ 4019 CTL_PAGE_DEFAULT], 4020 &control_page_default, 4021 sizeof(control_page_default)); 4022 memcpy(&lun->mode_pages.control_page[ 4023 CTL_PAGE_CHANGEABLE], 4024 &control_page_changeable, 4025 sizeof(control_page_changeable)); 4026 memcpy(&lun->mode_pages.control_page[ 4027 CTL_PAGE_SAVED], 4028 &control_page_default, 4029 sizeof(control_page_default)); 4030 control_page = &lun->mode_pages.control_page[ 4031 CTL_PAGE_SAVED]; 4032 value = ctl_get_opt(&lun->be_lun->options, 4033 "reordering"); 4034 if (value != NULL && 4035 strcmp(value, "unrestricted") == 0) { 4036 control_page->queue_flags &= 4037 ~SCP_QUEUE_ALG_MASK; 4038 control_page->queue_flags |= 4039 SCP_QUEUE_ALG_UNRESTRICTED; 4040 } 4041 memcpy(&lun->mode_pages.control_page[ 4042 CTL_PAGE_CURRENT], 4043 &lun->mode_pages.control_page[ 4044 CTL_PAGE_SAVED], 4045 sizeof(control_page_default)); 4046 page_index->page_data = 4047 (uint8_t *)lun->mode_pages.control_page; 4048 break; 4049 } 4050 case 0x01: 4051 memcpy(&lun->mode_pages.control_ext_page[ 4052 CTL_PAGE_DEFAULT], 4053 &control_ext_page_default, 4054 sizeof(control_ext_page_default)); 4055 memcpy(&lun->mode_pages.control_ext_page[ 4056 CTL_PAGE_CHANGEABLE], 4057 &control_ext_page_changeable, 4058 sizeof(control_ext_page_changeable)); 4059 memcpy(&lun->mode_pages.control_ext_page[ 4060 CTL_PAGE_SAVED], 4061 &control_ext_page_default, 4062 sizeof(control_ext_page_default)); 4063 memcpy(&lun->mode_pages.control_ext_page[ 4064 CTL_PAGE_CURRENT], 4065 &lun->mode_pages.control_ext_page[ 4066 CTL_PAGE_SAVED], 4067 sizeof(control_ext_page_default)); 4068 page_index->page_data = 4069 (uint8_t *)lun->mode_pages.control_ext_page; 4070 break; 4071 } 4072 break; 4073 } 4074 case SMS_INFO_EXCEPTIONS_PAGE: { 4075 switch (page_index->subpage) { 4076 case SMS_SUBPAGE_PAGE_0: 4077 memcpy(&lun->mode_pages.ie_page[CTL_PAGE_CURRENT], 4078 &ie_page_default, 4079 sizeof(ie_page_default)); 4080 memcpy(&lun->mode_pages.ie_page[ 4081 CTL_PAGE_CHANGEABLE], &ie_page_changeable, 4082 sizeof(ie_page_changeable)); 4083 memcpy(&lun->mode_pages.ie_page[CTL_PAGE_DEFAULT], 4084 &ie_page_default, 4085 sizeof(ie_page_default)); 4086 memcpy(&lun->mode_pages.ie_page[CTL_PAGE_SAVED], 4087 &ie_page_default, 4088 sizeof(ie_page_default)); 4089 page_index->page_data = 4090 (uint8_t *)lun->mode_pages.ie_page; 4091 break; 4092 case 0x02: { 4093 struct ctl_logical_block_provisioning_page *page; 4094 4095 memcpy(&lun->mode_pages.lbp_page[CTL_PAGE_DEFAULT], 4096 &lbp_page_default, 4097 sizeof(lbp_page_default)); 4098 memcpy(&lun->mode_pages.lbp_page[ 4099 CTL_PAGE_CHANGEABLE], &lbp_page_changeable, 4100 sizeof(lbp_page_changeable)); 4101 memcpy(&lun->mode_pages.lbp_page[CTL_PAGE_SAVED], 4102 &lbp_page_default, 4103 sizeof(lbp_page_default)); 4104 page = &lun->mode_pages.lbp_page[CTL_PAGE_SAVED]; 4105 value = ctl_get_opt(&lun->be_lun->options, 4106 "avail-threshold"); 4107 if (value != NULL && 4108 ctl_expand_number(value, &ival) == 0) { 4109 page->descr[0].flags |= SLBPPD_ENABLED | 4110 SLBPPD_ARMING_DEC; 4111 if (lun->be_lun->blocksize) 4112 ival /= lun->be_lun->blocksize; 4113 else 4114 ival /= 512; 4115 scsi_ulto4b(ival >> CTL_LBP_EXPONENT, 4116 page->descr[0].count); 4117 } 4118 value = ctl_get_opt(&lun->be_lun->options, 4119 "used-threshold"); 4120 if (value != NULL && 4121 ctl_expand_number(value, &ival) == 0) { 4122 page->descr[1].flags |= SLBPPD_ENABLED | 4123 SLBPPD_ARMING_INC; 4124 if (lun->be_lun->blocksize) 4125 ival /= lun->be_lun->blocksize; 4126 else 4127 ival /= 512; 4128 scsi_ulto4b(ival >> CTL_LBP_EXPONENT, 4129 page->descr[1].count); 4130 } 4131 value = ctl_get_opt(&lun->be_lun->options, 4132 "pool-avail-threshold"); 4133 if (value != NULL && 4134 ctl_expand_number(value, &ival) == 0) { 4135 page->descr[2].flags |= SLBPPD_ENABLED | 4136 SLBPPD_ARMING_DEC; 4137 if (lun->be_lun->blocksize) 4138 ival /= lun->be_lun->blocksize; 4139 else 4140 ival /= 512; 4141 scsi_ulto4b(ival >> CTL_LBP_EXPONENT, 4142 page->descr[2].count); 4143 } 4144 value = ctl_get_opt(&lun->be_lun->options, 4145 "pool-used-threshold"); 4146 if (value != NULL && 4147 ctl_expand_number(value, &ival) == 0) { 4148 page->descr[3].flags |= SLBPPD_ENABLED | 4149 SLBPPD_ARMING_INC; 4150 if (lun->be_lun->blocksize) 4151 ival /= lun->be_lun->blocksize; 4152 else 4153 ival /= 512; 4154 scsi_ulto4b(ival >> CTL_LBP_EXPONENT, 4155 page->descr[3].count); 4156 } 4157 memcpy(&lun->mode_pages.lbp_page[CTL_PAGE_CURRENT], 4158 &lun->mode_pages.lbp_page[CTL_PAGE_SAVED], 4159 sizeof(lbp_page_default)); 4160 page_index->page_data = 4161 (uint8_t *)lun->mode_pages.lbp_page; 4162 }} 4163 break; 4164 } 4165 case SMS_CDDVD_CAPS_PAGE:{ 4166 memcpy(&lun->mode_pages.cddvd_page[CTL_PAGE_DEFAULT], 4167 &cddvd_page_default, 4168 sizeof(cddvd_page_default)); 4169 memcpy(&lun->mode_pages.cddvd_page[ 4170 CTL_PAGE_CHANGEABLE], &cddvd_page_changeable, 4171 sizeof(cddvd_page_changeable)); 4172 memcpy(&lun->mode_pages.cddvd_page[CTL_PAGE_SAVED], 4173 &cddvd_page_default, 4174 sizeof(cddvd_page_default)); 4175 memcpy(&lun->mode_pages.cddvd_page[CTL_PAGE_CURRENT], 4176 &lun->mode_pages.cddvd_page[CTL_PAGE_SAVED], 4177 sizeof(cddvd_page_default)); 4178 page_index->page_data = 4179 (uint8_t *)lun->mode_pages.cddvd_page; 4180 break; 4181 } 4182 case SMS_VENDOR_SPECIFIC_PAGE:{ 4183 switch (page_index->subpage) { 4184 case DBGCNF_SUBPAGE_CODE: { 4185 memcpy(&lun->mode_pages.debugconf_subpage[ 4186 CTL_PAGE_CURRENT], 4187 &debugconf_page_default, 4188 sizeof(debugconf_page_default)); 4189 memcpy(&lun->mode_pages.debugconf_subpage[ 4190 CTL_PAGE_CHANGEABLE], 4191 &debugconf_page_changeable, 4192 sizeof(debugconf_page_changeable)); 4193 memcpy(&lun->mode_pages.debugconf_subpage[ 4194 CTL_PAGE_DEFAULT], 4195 &debugconf_page_default, 4196 sizeof(debugconf_page_default)); 4197 memcpy(&lun->mode_pages.debugconf_subpage[ 4198 CTL_PAGE_SAVED], 4199 &debugconf_page_default, 4200 sizeof(debugconf_page_default)); 4201 page_index->page_data = 4202 (uint8_t *)lun->mode_pages.debugconf_subpage; 4203 break; 4204 } 4205 default: 4206 panic("invalid subpage value %d", 4207 page_index->subpage); 4208 break; 4209 } 4210 break; 4211 } 4212 default: 4213 panic("invalid page value %d", 4214 page_index->page_code & SMPH_PC_MASK); 4215 break; 4216 } 4217 } 4218 4219 return (CTL_RETVAL_COMPLETE); 4220} 4221 4222static int 4223ctl_init_log_page_index(struct ctl_lun *lun) 4224{ 4225 struct ctl_page_index *page_index; 4226 int i, j, k, prev; 4227 4228 memcpy(&lun->log_pages.index, log_page_index_template, 4229 sizeof(log_page_index_template)); 4230 4231 prev = -1; 4232 for (i = 0, j = 0, k = 0; i < CTL_NUM_LOG_PAGES; i++) { 4233 4234 page_index = &lun->log_pages.index[i]; 4235 if (lun->be_lun->lun_type == T_DIRECT && 4236 (page_index->page_flags & CTL_PAGE_FLAG_DIRECT) == 0) 4237 continue; 4238 if (lun->be_lun->lun_type == T_PROCESSOR && 4239 (page_index->page_flags & CTL_PAGE_FLAG_PROC) == 0) 4240 continue; 4241 if (lun->be_lun->lun_type == T_CDROM && 4242 (page_index->page_flags & CTL_PAGE_FLAG_CDROM) == 0) 4243 continue; 4244 4245 if (page_index->page_code == SLS_LOGICAL_BLOCK_PROVISIONING && 4246 lun->backend->lun_attr == NULL) 4247 continue; 4248 4249 if (page_index->page_code != prev) { 4250 lun->log_pages.pages_page[j] = page_index->page_code; 4251 prev = page_index->page_code; 4252 j++; 4253 } 4254 lun->log_pages.subpages_page[k*2] = page_index->page_code; 4255 lun->log_pages.subpages_page[k*2+1] = page_index->subpage; 4256 k++; 4257 } 4258 lun->log_pages.index[0].page_data = &lun->log_pages.pages_page[0]; 4259 lun->log_pages.index[0].page_len = j; 4260 lun->log_pages.index[1].page_data = &lun->log_pages.subpages_page[0]; 4261 lun->log_pages.index[1].page_len = k * 2; 4262 lun->log_pages.index[2].page_data = &lun->log_pages.lbp_page[0]; 4263 lun->log_pages.index[2].page_len = 12*CTL_NUM_LBP_PARAMS; 4264 lun->log_pages.index[3].page_data = (uint8_t *)&lun->log_pages.stat_page; 4265 lun->log_pages.index[3].page_len = sizeof(lun->log_pages.stat_page); 4266 4267 return (CTL_RETVAL_COMPLETE); 4268} 4269 4270static int 4271hex2bin(const char *str, uint8_t *buf, int buf_size) 4272{ 4273 int i; 4274 u_char c; 4275 4276 memset(buf, 0, buf_size); 4277 while (isspace(str[0])) 4278 str++; 4279 if (str[0] == '0' && (str[1] == 'x' || str[1] == 'X')) 4280 str += 2; 4281 buf_size *= 2; 4282 for (i = 0; str[i] != 0 && i < buf_size; i++) { 4283 c = str[i]; 4284 if (isdigit(c)) 4285 c -= '0'; 4286 else if (isalpha(c)) 4287 c -= isupper(c) ? 'A' - 10 : 'a' - 10; 4288 else 4289 break; 4290 if (c >= 16) 4291 break; 4292 if ((i & 1) == 0) 4293 buf[i / 2] |= (c << 4); 4294 else 4295 buf[i / 2] |= c; 4296 } 4297 return ((i + 1) / 2); 4298} 4299 4300/* 4301 * LUN allocation. 4302 * 4303 * Requirements: 4304 * - caller allocates and zeros LUN storage, or passes in a NULL LUN if he 4305 * wants us to allocate the LUN and he can block. 4306 * - ctl_softc is always set 4307 * - be_lun is set if the LUN has a backend (needed for disk LUNs) 4308 * 4309 * Returns 0 for success, non-zero (errno) for failure. 4310 */ 4311static int 4312ctl_alloc_lun(struct ctl_softc *ctl_softc, struct ctl_lun *ctl_lun, 4313 struct ctl_be_lun *const be_lun) 4314{ 4315 struct ctl_lun *nlun, *lun; 4316 struct scsi_vpd_id_descriptor *desc; 4317 struct scsi_vpd_id_t10 *t10id; 4318 const char *eui, *naa, *scsiname, *vendor, *value; 4319 int lun_number, i, lun_malloced; 4320 int devidlen, idlen1, idlen2 = 0, len; 4321 4322 if (be_lun == NULL) 4323 return (EINVAL); 4324 4325 /* 4326 * We currently only support Direct Access or Processor LUN types. 4327 */ 4328 switch (be_lun->lun_type) { 4329 case T_DIRECT: 4330 case T_PROCESSOR: 4331 case T_CDROM: 4332 break; 4333 case T_SEQUENTIAL: 4334 case T_CHANGER: 4335 default: 4336 be_lun->lun_config_status(be_lun->be_lun, 4337 CTL_LUN_CONFIG_FAILURE); 4338 break; 4339 } 4340 if (ctl_lun == NULL) { 4341 lun = malloc(sizeof(*lun), M_CTL, M_WAITOK); 4342 lun_malloced = 1; 4343 } else { 4344 lun_malloced = 0; 4345 lun = ctl_lun; 4346 } 4347 4348 memset(lun, 0, sizeof(*lun)); 4349 if (lun_malloced) 4350 lun->flags = CTL_LUN_MALLOCED; 4351 4352 /* Generate LUN ID. */ 4353 devidlen = max(CTL_DEVID_MIN_LEN, 4354 strnlen(be_lun->device_id, CTL_DEVID_LEN)); 4355 idlen1 = sizeof(*t10id) + devidlen; 4356 len = sizeof(struct scsi_vpd_id_descriptor) + idlen1; 4357 scsiname = ctl_get_opt(&be_lun->options, "scsiname"); 4358 if (scsiname != NULL) { 4359 idlen2 = roundup2(strlen(scsiname) + 1, 4); 4360 len += sizeof(struct scsi_vpd_id_descriptor) + idlen2; 4361 } 4362 eui = ctl_get_opt(&be_lun->options, "eui"); 4363 if (eui != NULL) { 4364 len += sizeof(struct scsi_vpd_id_descriptor) + 16; 4365 } 4366 naa = ctl_get_opt(&be_lun->options, "naa"); 4367 if (naa != NULL) { 4368 len += sizeof(struct scsi_vpd_id_descriptor) + 16; 4369 } 4370 lun->lun_devid = malloc(sizeof(struct ctl_devid) + len, 4371 M_CTL, M_WAITOK | M_ZERO); 4372 desc = (struct scsi_vpd_id_descriptor *)lun->lun_devid->data; 4373 desc->proto_codeset = SVPD_ID_CODESET_ASCII; 4374 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | SVPD_ID_TYPE_T10; 4375 desc->length = idlen1; 4376 t10id = (struct scsi_vpd_id_t10 *)&desc->identifier[0]; 4377 memset(t10id->vendor, ' ', sizeof(t10id->vendor)); 4378 if ((vendor = ctl_get_opt(&be_lun->options, "vendor")) == NULL) { 4379 strncpy((char *)t10id->vendor, CTL_VENDOR, sizeof(t10id->vendor)); 4380 } else { 4381 strncpy(t10id->vendor, vendor, 4382 min(sizeof(t10id->vendor), strlen(vendor))); 4383 } 4384 strncpy((char *)t10id->vendor_spec_id, 4385 (char *)be_lun->device_id, devidlen); 4386 if (scsiname != NULL) { 4387 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 4388 desc->length); 4389 desc->proto_codeset = SVPD_ID_CODESET_UTF8; 4390 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | 4391 SVPD_ID_TYPE_SCSI_NAME; 4392 desc->length = idlen2; 4393 strlcpy(desc->identifier, scsiname, idlen2); 4394 } 4395 if (eui != NULL) { 4396 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 4397 desc->length); 4398 desc->proto_codeset = SVPD_ID_CODESET_BINARY; 4399 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | 4400 SVPD_ID_TYPE_EUI64; 4401 desc->length = hex2bin(eui, desc->identifier, 16); 4402 desc->length = desc->length > 12 ? 16 : 4403 (desc->length > 8 ? 12 : 8); 4404 len -= 16 - desc->length; 4405 } 4406 if (naa != NULL) { 4407 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 4408 desc->length); 4409 desc->proto_codeset = SVPD_ID_CODESET_BINARY; 4410 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | 4411 SVPD_ID_TYPE_NAA; 4412 desc->length = hex2bin(naa, desc->identifier, 16); 4413 desc->length = desc->length > 8 ? 16 : 8; 4414 len -= 16 - desc->length; 4415 } 4416 lun->lun_devid->len = len; 4417 4418 mtx_lock(&ctl_softc->ctl_lock); 4419 /* 4420 * See if the caller requested a particular LUN number. If so, see 4421 * if it is available. Otherwise, allocate the first available LUN. 4422 */ 4423 if (be_lun->flags & CTL_LUN_FLAG_ID_REQ) { 4424 if ((be_lun->req_lun_id > (CTL_MAX_LUNS - 1)) 4425 || (ctl_is_set(ctl_softc->ctl_lun_mask, be_lun->req_lun_id))) { 4426 mtx_unlock(&ctl_softc->ctl_lock); 4427 if (be_lun->req_lun_id > (CTL_MAX_LUNS - 1)) { 4428 printf("ctl: requested LUN ID %d is higher " 4429 "than CTL_MAX_LUNS - 1 (%d)\n", 4430 be_lun->req_lun_id, CTL_MAX_LUNS - 1); 4431 } else { 4432 /* 4433 * XXX KDM return an error, or just assign 4434 * another LUN ID in this case?? 4435 */ 4436 printf("ctl: requested LUN ID %d is already " 4437 "in use\n", be_lun->req_lun_id); 4438 } 4439 if (lun->flags & CTL_LUN_MALLOCED) 4440 free(lun, M_CTL); 4441 be_lun->lun_config_status(be_lun->be_lun, 4442 CTL_LUN_CONFIG_FAILURE); 4443 return (ENOSPC); 4444 } 4445 lun_number = be_lun->req_lun_id; 4446 } else { 4447 lun_number = ctl_ffz(ctl_softc->ctl_lun_mask, 0, CTL_MAX_LUNS); 4448 if (lun_number == -1) { 4449 mtx_unlock(&ctl_softc->ctl_lock); 4450 printf("ctl: can't allocate LUN, out of LUNs\n"); 4451 if (lun->flags & CTL_LUN_MALLOCED) 4452 free(lun, M_CTL); 4453 be_lun->lun_config_status(be_lun->be_lun, 4454 CTL_LUN_CONFIG_FAILURE); 4455 return (ENOSPC); 4456 } 4457 } 4458 ctl_set_mask(ctl_softc->ctl_lun_mask, lun_number); 4459 4460 mtx_init(&lun->lun_lock, "CTL LUN", NULL, MTX_DEF); 4461 lun->lun = lun_number; 4462 lun->be_lun = be_lun; 4463 /* 4464 * The processor LUN is always enabled. Disk LUNs come on line 4465 * disabled, and must be enabled by the backend. 4466 */ 4467 lun->flags |= CTL_LUN_DISABLED; 4468 lun->backend = be_lun->be; 4469 be_lun->ctl_lun = lun; 4470 be_lun->lun_id = lun_number; 4471 atomic_add_int(&be_lun->be->num_luns, 1); 4472 if (be_lun->flags & CTL_LUN_FLAG_EJECTED) 4473 lun->flags |= CTL_LUN_EJECTED; 4474 if (be_lun->flags & CTL_LUN_FLAG_NO_MEDIA) 4475 lun->flags |= CTL_LUN_NO_MEDIA; 4476 if (be_lun->flags & CTL_LUN_FLAG_STOPPED) 4477 lun->flags |= CTL_LUN_STOPPED; 4478 4479 if (be_lun->flags & CTL_LUN_FLAG_PRIMARY) 4480 lun->flags |= CTL_LUN_PRIMARY_SC; 4481 4482 value = ctl_get_opt(&be_lun->options, "removable"); 4483 if (value != NULL) { 4484 if (strcmp(value, "on") == 0) 4485 lun->flags |= CTL_LUN_REMOVABLE; 4486 } else if (be_lun->lun_type == T_CDROM) 4487 lun->flags |= CTL_LUN_REMOVABLE; 4488 4489 lun->ctl_softc = ctl_softc; 4490#ifdef CTL_TIME_IO 4491 lun->last_busy = getsbinuptime(); 4492#endif 4493 TAILQ_INIT(&lun->ooa_queue); 4494 TAILQ_INIT(&lun->blocked_queue); 4495 STAILQ_INIT(&lun->error_list); 4496 ctl_tpc_lun_init(lun); 4497 4498 /* 4499 * Initialize the mode and log page index. 4500 */ 4501 ctl_init_page_index(lun); 4502 ctl_init_log_page_index(lun); 4503 4504 /* 4505 * Now, before we insert this lun on the lun list, set the lun 4506 * inventory changed UA for all other luns. 4507 */ 4508 STAILQ_FOREACH(nlun, &ctl_softc->lun_list, links) { 4509 mtx_lock(&nlun->lun_lock); 4510 ctl_est_ua_all(nlun, -1, CTL_UA_LUN_CHANGE); 4511 mtx_unlock(&nlun->lun_lock); 4512 } 4513 4514 STAILQ_INSERT_TAIL(&ctl_softc->lun_list, lun, links); 4515 4516 ctl_softc->ctl_luns[lun_number] = lun; 4517 4518 ctl_softc->num_luns++; 4519 4520 /* Setup statistics gathering */ 4521 lun->stats.device_type = be_lun->lun_type; 4522 lun->stats.lun_number = lun_number; 4523 lun->stats.blocksize = be_lun->blocksize; 4524 if (be_lun->blocksize == 0) 4525 lun->stats.flags = CTL_LUN_STATS_NO_BLOCKSIZE; 4526 for (i = 0;i < CTL_MAX_PORTS;i++) 4527 lun->stats.ports[i].targ_port = i; 4528 4529 mtx_unlock(&ctl_softc->ctl_lock); 4530 4531 lun->be_lun->lun_config_status(lun->be_lun->be_lun, CTL_LUN_CONFIG_OK); 4532 return (0); 4533} 4534 4535/* 4536 * Delete a LUN. 4537 * Assumptions: 4538 * - LUN has already been marked invalid and any pending I/O has been taken 4539 * care of. 4540 */ 4541static int 4542ctl_free_lun(struct ctl_lun *lun) 4543{ 4544 struct ctl_softc *softc; 4545 struct ctl_lun *nlun; 4546 int i; 4547 4548 softc = lun->ctl_softc; 4549 4550 mtx_assert(&softc->ctl_lock, MA_OWNED); 4551 4552 STAILQ_REMOVE(&softc->lun_list, lun, ctl_lun, links); 4553 4554 ctl_clear_mask(softc->ctl_lun_mask, lun->lun); 4555 4556 softc->ctl_luns[lun->lun] = NULL; 4557 4558 if (!TAILQ_EMPTY(&lun->ooa_queue)) 4559 panic("Freeing a LUN %p with outstanding I/O!!\n", lun); 4560 4561 softc->num_luns--; 4562 4563 /* 4564 * Tell the backend to free resources, if this LUN has a backend. 4565 */ 4566 atomic_subtract_int(&lun->be_lun->be->num_luns, 1); 4567 lun->be_lun->lun_shutdown(lun->be_lun->be_lun); 4568 4569 ctl_tpc_lun_shutdown(lun); 4570 mtx_destroy(&lun->lun_lock); 4571 free(lun->lun_devid, M_CTL); 4572 for (i = 0; i < CTL_MAX_PORTS; i++) 4573 free(lun->pending_ua[i], M_CTL); 4574 for (i = 0; i < CTL_MAX_PORTS; i++) 4575 free(lun->pr_keys[i], M_CTL); 4576 free(lun->write_buffer, M_CTL); 4577 if (lun->flags & CTL_LUN_MALLOCED) 4578 free(lun, M_CTL); 4579 4580 STAILQ_FOREACH(nlun, &softc->lun_list, links) { 4581 mtx_lock(&nlun->lun_lock); 4582 ctl_est_ua_all(nlun, -1, CTL_UA_LUN_CHANGE); 4583 mtx_unlock(&nlun->lun_lock); 4584 } 4585 4586 return (0); 4587} 4588 4589static void 4590ctl_create_lun(struct ctl_be_lun *be_lun) 4591{ 4592 4593 /* 4594 * ctl_alloc_lun() should handle all potential failure cases. 4595 */ 4596 ctl_alloc_lun(control_softc, NULL, be_lun); 4597} 4598 4599int 4600ctl_add_lun(struct ctl_be_lun *be_lun) 4601{ 4602 struct ctl_softc *softc = control_softc; 4603 4604 mtx_lock(&softc->ctl_lock); 4605 STAILQ_INSERT_TAIL(&softc->pending_lun_queue, be_lun, links); 4606 mtx_unlock(&softc->ctl_lock); 4607 wakeup(&softc->pending_lun_queue); 4608 4609 return (0); 4610} 4611 4612int 4613ctl_enable_lun(struct ctl_be_lun *be_lun) 4614{ 4615 struct ctl_softc *softc; 4616 struct ctl_port *port, *nport; 4617 struct ctl_lun *lun; 4618 int retval; 4619 4620 lun = (struct ctl_lun *)be_lun->ctl_lun; 4621 softc = lun->ctl_softc; 4622 4623 mtx_lock(&softc->ctl_lock); 4624 mtx_lock(&lun->lun_lock); 4625 if ((lun->flags & CTL_LUN_DISABLED) == 0) { 4626 /* 4627 * eh? Why did we get called if the LUN is already 4628 * enabled? 4629 */ 4630 mtx_unlock(&lun->lun_lock); 4631 mtx_unlock(&softc->ctl_lock); 4632 return (0); 4633 } 4634 lun->flags &= ~CTL_LUN_DISABLED; 4635 mtx_unlock(&lun->lun_lock); 4636 4637 STAILQ_FOREACH_SAFE(port, &softc->port_list, links, nport) { 4638 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0 || 4639 port->lun_map != NULL || port->lun_enable == NULL) 4640 continue; 4641 4642 /* 4643 * Drop the lock while we call the FETD's enable routine. 4644 * This can lead to a callback into CTL (at least in the 4645 * case of the internal initiator frontend. 4646 */ 4647 mtx_unlock(&softc->ctl_lock); 4648 retval = port->lun_enable(port->targ_lun_arg, lun->lun); 4649 mtx_lock(&softc->ctl_lock); 4650 if (retval != 0) { 4651 printf("%s: FETD %s port %d returned error " 4652 "%d for lun_enable on lun %jd\n", 4653 __func__, port->port_name, port->targ_port, 4654 retval, (intmax_t)lun->lun); 4655 } 4656 } 4657 4658 mtx_unlock(&softc->ctl_lock); 4659 ctl_isc_announce_lun(lun); 4660 4661 return (0); 4662} 4663 4664int 4665ctl_disable_lun(struct ctl_be_lun *be_lun) 4666{ 4667 struct ctl_softc *softc; 4668 struct ctl_port *port; 4669 struct ctl_lun *lun; 4670 int retval; 4671 4672 lun = (struct ctl_lun *)be_lun->ctl_lun; 4673 softc = lun->ctl_softc; 4674 4675 mtx_lock(&softc->ctl_lock); 4676 mtx_lock(&lun->lun_lock); 4677 if (lun->flags & CTL_LUN_DISABLED) { 4678 mtx_unlock(&lun->lun_lock); 4679 mtx_unlock(&softc->ctl_lock); 4680 return (0); 4681 } 4682 lun->flags |= CTL_LUN_DISABLED; 4683 mtx_unlock(&lun->lun_lock); 4684 4685 STAILQ_FOREACH(port, &softc->port_list, links) { 4686 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0 || 4687 port->lun_map != NULL || port->lun_disable == NULL) 4688 continue; 4689 4690 /* 4691 * Drop the lock before we call the frontend's disable 4692 * routine, to avoid lock order reversals. 4693 * 4694 * XXX KDM what happens if the frontend list changes while 4695 * we're traversing it? It's unlikely, but should be handled. 4696 */ 4697 mtx_unlock(&softc->ctl_lock); 4698 retval = port->lun_disable(port->targ_lun_arg, lun->lun); 4699 mtx_lock(&softc->ctl_lock); 4700 if (retval != 0) { 4701 printf("%s: FETD %s port %d returned error " 4702 "%d for lun_disable on lun %jd\n", 4703 __func__, port->port_name, port->targ_port, 4704 retval, (intmax_t)lun->lun); 4705 } 4706 } 4707 4708 mtx_unlock(&softc->ctl_lock); 4709 ctl_isc_announce_lun(lun); 4710 4711 return (0); 4712} 4713 4714int 4715ctl_start_lun(struct ctl_be_lun *be_lun) 4716{ 4717 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 4718 4719 mtx_lock(&lun->lun_lock); 4720 lun->flags &= ~CTL_LUN_STOPPED; 4721 mtx_unlock(&lun->lun_lock); 4722 return (0); 4723} 4724 4725int 4726ctl_stop_lun(struct ctl_be_lun *be_lun) 4727{ 4728 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 4729 4730 mtx_lock(&lun->lun_lock); 4731 lun->flags |= CTL_LUN_STOPPED; 4732 mtx_unlock(&lun->lun_lock); 4733 return (0); 4734} 4735 4736int 4737ctl_lun_no_media(struct ctl_be_lun *be_lun) 4738{ 4739 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 4740 4741 mtx_lock(&lun->lun_lock); 4742 lun->flags |= CTL_LUN_NO_MEDIA; 4743 mtx_unlock(&lun->lun_lock); 4744 return (0); 4745} 4746 4747int 4748ctl_lun_has_media(struct ctl_be_lun *be_lun) 4749{ 4750 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 4751 union ctl_ha_msg msg; 4752 4753 mtx_lock(&lun->lun_lock); 4754 lun->flags &= ~(CTL_LUN_NO_MEDIA | CTL_LUN_EJECTED); 4755 if (lun->flags & CTL_LUN_REMOVABLE) 4756 ctl_est_ua_all(lun, -1, CTL_UA_MEDIUM_CHANGE); 4757 mtx_unlock(&lun->lun_lock); 4758 if ((lun->flags & CTL_LUN_REMOVABLE) && 4759 lun->ctl_softc->ha_mode == CTL_HA_MODE_XFER) { 4760 bzero(&msg.ua, sizeof(msg.ua)); 4761 msg.hdr.msg_type = CTL_MSG_UA; 4762 msg.hdr.nexus.initid = -1; 4763 msg.hdr.nexus.targ_port = -1; 4764 msg.hdr.nexus.targ_lun = lun->lun; 4765 msg.hdr.nexus.targ_mapped_lun = lun->lun; 4766 msg.ua.ua_all = 1; 4767 msg.ua.ua_set = 1; 4768 msg.ua.ua_type = CTL_UA_MEDIUM_CHANGE; 4769 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, sizeof(msg.ua), 4770 M_WAITOK); 4771 } 4772 return (0); 4773} 4774 4775int 4776ctl_lun_ejected(struct ctl_be_lun *be_lun) 4777{ 4778 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 4779 4780 mtx_lock(&lun->lun_lock); 4781 lun->flags |= CTL_LUN_EJECTED; 4782 mtx_unlock(&lun->lun_lock); 4783 return (0); 4784} 4785 4786int 4787ctl_lun_primary(struct ctl_be_lun *be_lun) 4788{ 4789 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 4790 4791 mtx_lock(&lun->lun_lock); 4792 lun->flags |= CTL_LUN_PRIMARY_SC; 4793 ctl_est_ua_all(lun, -1, CTL_UA_ASYM_ACC_CHANGE); 4794 mtx_unlock(&lun->lun_lock); 4795 ctl_isc_announce_lun(lun); 4796 return (0); 4797} 4798 4799int 4800ctl_lun_secondary(struct ctl_be_lun *be_lun) 4801{ 4802 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 4803 4804 mtx_lock(&lun->lun_lock); 4805 lun->flags &= ~CTL_LUN_PRIMARY_SC; 4806 ctl_est_ua_all(lun, -1, CTL_UA_ASYM_ACC_CHANGE); 4807 mtx_unlock(&lun->lun_lock); 4808 ctl_isc_announce_lun(lun); 4809 return (0); 4810} 4811 4812int 4813ctl_invalidate_lun(struct ctl_be_lun *be_lun) 4814{ 4815 struct ctl_softc *softc; 4816 struct ctl_lun *lun; 4817 4818 lun = (struct ctl_lun *)be_lun->ctl_lun; 4819 softc = lun->ctl_softc; 4820 4821 mtx_lock(&lun->lun_lock); 4822 4823 /* 4824 * The LUN needs to be disabled before it can be marked invalid. 4825 */ 4826 if ((lun->flags & CTL_LUN_DISABLED) == 0) { 4827 mtx_unlock(&lun->lun_lock); 4828 return (-1); 4829 } 4830 /* 4831 * Mark the LUN invalid. 4832 */ 4833 lun->flags |= CTL_LUN_INVALID; 4834 4835 /* 4836 * If there is nothing in the OOA queue, go ahead and free the LUN. 4837 * If we have something in the OOA queue, we'll free it when the 4838 * last I/O completes. 4839 */ 4840 if (TAILQ_EMPTY(&lun->ooa_queue)) { 4841 mtx_unlock(&lun->lun_lock); 4842 mtx_lock(&softc->ctl_lock); 4843 ctl_free_lun(lun); 4844 mtx_unlock(&softc->ctl_lock); 4845 } else 4846 mtx_unlock(&lun->lun_lock); 4847 4848 return (0); 4849} 4850 4851void 4852ctl_lun_capacity_changed(struct ctl_be_lun *be_lun) 4853{ 4854 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 4855 union ctl_ha_msg msg; 4856 4857 mtx_lock(&lun->lun_lock); 4858 ctl_est_ua_all(lun, -1, CTL_UA_CAPACITY_CHANGE); 4859 mtx_unlock(&lun->lun_lock); 4860 if (lun->ctl_softc->ha_mode == CTL_HA_MODE_XFER) { 4861 /* Send msg to other side. */ 4862 bzero(&msg.ua, sizeof(msg.ua)); 4863 msg.hdr.msg_type = CTL_MSG_UA; 4864 msg.hdr.nexus.initid = -1; 4865 msg.hdr.nexus.targ_port = -1; 4866 msg.hdr.nexus.targ_lun = lun->lun; 4867 msg.hdr.nexus.targ_mapped_lun = lun->lun; 4868 msg.ua.ua_all = 1; 4869 msg.ua.ua_set = 1; 4870 msg.ua.ua_type = CTL_UA_CAPACITY_CHANGE; 4871 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, sizeof(msg.ua), 4872 M_WAITOK); 4873 } 4874} 4875 4876/* 4877 * Backend "memory move is complete" callback for requests that never 4878 * make it down to say RAIDCore's configuration code. 4879 */ 4880int 4881ctl_config_move_done(union ctl_io *io) 4882{ 4883 int retval; 4884 4885 CTL_DEBUG_PRINT(("ctl_config_move_done\n")); 4886 KASSERT(io->io_hdr.io_type == CTL_IO_SCSI, 4887 ("Config I/O type isn't CTL_IO_SCSI (%d)!", io->io_hdr.io_type)); 4888 4889 if ((io->io_hdr.port_status != 0) && 4890 ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE || 4891 (io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS)) { 4892 /* 4893 * For hardware error sense keys, the sense key 4894 * specific value is defined to be a retry count, 4895 * but we use it to pass back an internal FETD 4896 * error code. XXX KDM Hopefully the FETD is only 4897 * using 16 bits for an error code, since that's 4898 * all the space we have in the sks field. 4899 */ 4900 ctl_set_internal_failure(&io->scsiio, 4901 /*sks_valid*/ 1, 4902 /*retry_count*/ 4903 io->io_hdr.port_status); 4904 } 4905 4906 if (ctl_debug & CTL_DEBUG_CDB_DATA) 4907 ctl_data_print(io); 4908 if (((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_IN) || 4909 ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE && 4910 (io->io_hdr.status & CTL_STATUS_MASK) != CTL_SUCCESS) || 4911 ((io->io_hdr.flags & CTL_FLAG_ABORT) != 0)) { 4912 /* 4913 * XXX KDM just assuming a single pointer here, and not a 4914 * S/G list. If we start using S/G lists for config data, 4915 * we'll need to know how to clean them up here as well. 4916 */ 4917 if (io->io_hdr.flags & CTL_FLAG_ALLOCATED) 4918 free(io->scsiio.kern_data_ptr, M_CTL); 4919 ctl_done(io); 4920 retval = CTL_RETVAL_COMPLETE; 4921 } else { 4922 /* 4923 * XXX KDM now we need to continue data movement. Some 4924 * options: 4925 * - call ctl_scsiio() again? We don't do this for data 4926 * writes, because for those at least we know ahead of 4927 * time where the write will go and how long it is. For 4928 * config writes, though, that information is largely 4929 * contained within the write itself, thus we need to 4930 * parse out the data again. 4931 * 4932 * - Call some other function once the data is in? 4933 */ 4934 4935 /* 4936 * XXX KDM call ctl_scsiio() again for now, and check flag 4937 * bits to see whether we're allocated or not. 4938 */ 4939 retval = ctl_scsiio(&io->scsiio); 4940 } 4941 return (retval); 4942} 4943 4944/* 4945 * This gets called by a backend driver when it is done with a 4946 * data_submit method. 4947 */ 4948void 4949ctl_data_submit_done(union ctl_io *io) 4950{ 4951 /* 4952 * If the IO_CONT flag is set, we need to call the supplied 4953 * function to continue processing the I/O, instead of completing 4954 * the I/O just yet. 4955 * 4956 * If there is an error, though, we don't want to keep processing. 4957 * Instead, just send status back to the initiator. 4958 */ 4959 if ((io->io_hdr.flags & CTL_FLAG_IO_CONT) && 4960 (io->io_hdr.flags & CTL_FLAG_ABORT) == 0 && 4961 ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE || 4962 (io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS)) { 4963 io->scsiio.io_cont(io); 4964 return; 4965 } 4966 ctl_done(io); 4967} 4968 4969/* 4970 * This gets called by a backend driver when it is done with a 4971 * configuration write. 4972 */ 4973void 4974ctl_config_write_done(union ctl_io *io) 4975{ 4976 uint8_t *buf; 4977 4978 /* 4979 * If the IO_CONT flag is set, we need to call the supplied 4980 * function to continue processing the I/O, instead of completing 4981 * the I/O just yet. 4982 * 4983 * If there is an error, though, we don't want to keep processing. 4984 * Instead, just send status back to the initiator. 4985 */ 4986 if ((io->io_hdr.flags & CTL_FLAG_IO_CONT) && 4987 (io->io_hdr.flags & CTL_FLAG_ABORT) == 0 && 4988 ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE || 4989 (io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS)) { 4990 io->scsiio.io_cont(io); 4991 return; 4992 } 4993 /* 4994 * Since a configuration write can be done for commands that actually 4995 * have data allocated, like write buffer, and commands that have 4996 * no data, like start/stop unit, we need to check here. 4997 */ 4998 if (io->io_hdr.flags & CTL_FLAG_ALLOCATED) 4999 buf = io->scsiio.kern_data_ptr; 5000 else 5001 buf = NULL; 5002 ctl_done(io); 5003 if (buf) 5004 free(buf, M_CTL); 5005} 5006 5007void 5008ctl_config_read_done(union ctl_io *io) 5009{ 5010 uint8_t *buf; 5011 5012 /* 5013 * If there is some error -- we are done, skip data transfer. 5014 */ 5015 if ((io->io_hdr.flags & CTL_FLAG_ABORT) != 0 || 5016 ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE && 5017 (io->io_hdr.status & CTL_STATUS_MASK) != CTL_SUCCESS)) { 5018 if (io->io_hdr.flags & CTL_FLAG_ALLOCATED) 5019 buf = io->scsiio.kern_data_ptr; 5020 else 5021 buf = NULL; 5022 ctl_done(io); 5023 if (buf) 5024 free(buf, M_CTL); 5025 return; 5026 } 5027 5028 /* 5029 * If the IO_CONT flag is set, we need to call the supplied 5030 * function to continue processing the I/O, instead of completing 5031 * the I/O just yet. 5032 */ 5033 if (io->io_hdr.flags & CTL_FLAG_IO_CONT) { 5034 io->scsiio.io_cont(io); 5035 return; 5036 } 5037 5038 ctl_datamove(io); 5039} 5040 5041/* 5042 * SCSI release command. 5043 */ 5044int 5045ctl_scsi_release(struct ctl_scsiio *ctsio) 5046{ 5047 struct ctl_lun *lun; 5048 uint32_t residx; 5049 5050 CTL_DEBUG_PRINT(("ctl_scsi_release\n")); 5051 5052 residx = ctl_get_initindex(&ctsio->io_hdr.nexus); 5053 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5054 5055 /* 5056 * XXX KDM right now, we only support LUN reservation. We don't 5057 * support 3rd party reservations, or extent reservations, which 5058 * might actually need the parameter list. If we've gotten this 5059 * far, we've got a LUN reservation. Anything else got kicked out 5060 * above. So, according to SPC, ignore the length. 5061 */ 5062 5063 mtx_lock(&lun->lun_lock); 5064 5065 /* 5066 * According to SPC, it is not an error for an intiator to attempt 5067 * to release a reservation on a LUN that isn't reserved, or that 5068 * is reserved by another initiator. The reservation can only be 5069 * released, though, by the initiator who made it or by one of 5070 * several reset type events. 5071 */ 5072 if ((lun->flags & CTL_LUN_RESERVED) && (lun->res_idx == residx)) 5073 lun->flags &= ~CTL_LUN_RESERVED; 5074 5075 mtx_unlock(&lun->lun_lock); 5076 5077 ctl_set_success(ctsio); 5078 ctl_done((union ctl_io *)ctsio); 5079 return (CTL_RETVAL_COMPLETE); 5080} 5081 5082int 5083ctl_scsi_reserve(struct ctl_scsiio *ctsio) 5084{ 5085 struct ctl_lun *lun; 5086 uint32_t residx; 5087 5088 CTL_DEBUG_PRINT(("ctl_reserve\n")); 5089 5090 residx = ctl_get_initindex(&ctsio->io_hdr.nexus); 5091 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5092 5093 /* 5094 * XXX KDM right now, we only support LUN reservation. We don't 5095 * support 3rd party reservations, or extent reservations, which 5096 * might actually need the parameter list. If we've gotten this 5097 * far, we've got a LUN reservation. Anything else got kicked out 5098 * above. So, according to SPC, ignore the length. 5099 */ 5100 5101 mtx_lock(&lun->lun_lock); 5102 if ((lun->flags & CTL_LUN_RESERVED) && (lun->res_idx != residx)) { 5103 ctl_set_reservation_conflict(ctsio); 5104 goto bailout; 5105 } 5106 lun->flags |= CTL_LUN_RESERVED; 5107 lun->res_idx = residx; 5108 ctl_set_success(ctsio); 5109 5110bailout: 5111 mtx_unlock(&lun->lun_lock); 5112 ctl_done((union ctl_io *)ctsio); 5113 return (CTL_RETVAL_COMPLETE); 5114} 5115 5116int 5117ctl_start_stop(struct ctl_scsiio *ctsio) 5118{ 5119 struct scsi_start_stop_unit *cdb; 5120 struct ctl_lun *lun; 5121 int retval; 5122 5123 CTL_DEBUG_PRINT(("ctl_start_stop\n")); 5124 5125 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5126 cdb = (struct scsi_start_stop_unit *)ctsio->cdb; 5127 5128 if ((cdb->how & SSS_PC_MASK) == 0) { 5129 if ((lun->flags & CTL_LUN_PR_RESERVED) && 5130 (cdb->how & SSS_START) == 0) { 5131 uint32_t residx; 5132 5133 residx = ctl_get_initindex(&ctsio->io_hdr.nexus); 5134 if (ctl_get_prkey(lun, residx) == 0 || 5135 (lun->pr_res_idx != residx && lun->res_type < 4)) { 5136 5137 ctl_set_reservation_conflict(ctsio); 5138 ctl_done((union ctl_io *)ctsio); 5139 return (CTL_RETVAL_COMPLETE); 5140 } 5141 } 5142 5143 if ((cdb->how & SSS_LOEJ) && 5144 (lun->flags & CTL_LUN_REMOVABLE) == 0) { 5145 ctl_set_invalid_field(ctsio, 5146 /*sks_valid*/ 1, 5147 /*command*/ 1, 5148 /*field*/ 4, 5149 /*bit_valid*/ 1, 5150 /*bit*/ 1); 5151 ctl_done((union ctl_io *)ctsio); 5152 return (CTL_RETVAL_COMPLETE); 5153 } 5154 5155 if ((cdb->how & SSS_START) == 0 && (cdb->how & SSS_LOEJ) && 5156 lun->prevent_count > 0) { 5157 /* "Medium removal prevented" */ 5158 ctl_set_sense(ctsio, /*current_error*/ 1, 5159 /*sense_key*/(lun->flags & CTL_LUN_NO_MEDIA) ? 5160 SSD_KEY_NOT_READY : SSD_KEY_ILLEGAL_REQUEST, 5161 /*asc*/ 0x53, /*ascq*/ 0x02, SSD_ELEM_NONE); 5162 ctl_done((union ctl_io *)ctsio); 5163 return (CTL_RETVAL_COMPLETE); 5164 } 5165 } 5166 5167 retval = lun->backend->config_write((union ctl_io *)ctsio); 5168 return (retval); 5169} 5170 5171int 5172ctl_prevent_allow(struct ctl_scsiio *ctsio) 5173{ 5174 struct ctl_lun *lun; 5175 struct scsi_prevent *cdb; 5176 int retval; 5177 uint32_t initidx; 5178 5179 CTL_DEBUG_PRINT(("ctl_prevent_allow\n")); 5180 5181 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5182 cdb = (struct scsi_prevent *)ctsio->cdb; 5183 5184 if ((lun->flags & CTL_LUN_REMOVABLE) == 0) { 5185 ctl_set_invalid_opcode(ctsio); 5186 ctl_done((union ctl_io *)ctsio); 5187 return (CTL_RETVAL_COMPLETE); 5188 } 5189 5190 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 5191 mtx_lock(&lun->lun_lock); 5192 if ((cdb->how & PR_PREVENT) && 5193 ctl_is_set(lun->prevent, initidx) == 0) { 5194 ctl_set_mask(lun->prevent, initidx); 5195 lun->prevent_count++; 5196 } else if ((cdb->how & PR_PREVENT) == 0 && 5197 ctl_is_set(lun->prevent, initidx)) { 5198 ctl_clear_mask(lun->prevent, initidx); 5199 lun->prevent_count--; 5200 } 5201 mtx_unlock(&lun->lun_lock); 5202 retval = lun->backend->config_write((union ctl_io *)ctsio); 5203 return (retval); 5204} 5205 5206/* 5207 * We support the SYNCHRONIZE CACHE command (10 and 16 byte versions), but 5208 * we don't really do anything with the LBA and length fields if the user 5209 * passes them in. Instead we'll just flush out the cache for the entire 5210 * LUN. 5211 */ 5212int 5213ctl_sync_cache(struct ctl_scsiio *ctsio) 5214{ 5215 struct ctl_lun *lun; 5216 struct ctl_softc *softc; 5217 struct ctl_lba_len_flags *lbalen; 5218 uint64_t starting_lba; 5219 uint32_t block_count; 5220 int retval; 5221 uint8_t byte2; 5222 5223 CTL_DEBUG_PRINT(("ctl_sync_cache\n")); 5224 5225 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5226 softc = lun->ctl_softc; 5227 retval = 0; 5228 5229 switch (ctsio->cdb[0]) { 5230 case SYNCHRONIZE_CACHE: { 5231 struct scsi_sync_cache *cdb; 5232 cdb = (struct scsi_sync_cache *)ctsio->cdb; 5233 5234 starting_lba = scsi_4btoul(cdb->begin_lba); 5235 block_count = scsi_2btoul(cdb->lb_count); 5236 byte2 = cdb->byte2; 5237 break; 5238 } 5239 case SYNCHRONIZE_CACHE_16: { 5240 struct scsi_sync_cache_16 *cdb; 5241 cdb = (struct scsi_sync_cache_16 *)ctsio->cdb; 5242 5243 starting_lba = scsi_8btou64(cdb->begin_lba); 5244 block_count = scsi_4btoul(cdb->lb_count); 5245 byte2 = cdb->byte2; 5246 break; 5247 } 5248 default: 5249 ctl_set_invalid_opcode(ctsio); 5250 ctl_done((union ctl_io *)ctsio); 5251 goto bailout; 5252 break; /* NOTREACHED */ 5253 } 5254 5255 /* 5256 * We check the LBA and length, but don't do anything with them. 5257 * A SYNCHRONIZE CACHE will cause the entire cache for this lun to 5258 * get flushed. This check will just help satisfy anyone who wants 5259 * to see an error for an out of range LBA. 5260 */ 5261 if ((starting_lba + block_count) > (lun->be_lun->maxlba + 1)) { 5262 ctl_set_lba_out_of_range(ctsio); 5263 ctl_done((union ctl_io *)ctsio); 5264 goto bailout; 5265 } 5266 5267 lbalen = (struct ctl_lba_len_flags *)&ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 5268 lbalen->lba = starting_lba; 5269 lbalen->len = block_count; 5270 lbalen->flags = byte2; 5271 retval = lun->backend->config_write((union ctl_io *)ctsio); 5272 5273bailout: 5274 return (retval); 5275} 5276 5277int 5278ctl_format(struct ctl_scsiio *ctsio) 5279{ 5280 struct scsi_format *cdb; 5281 struct ctl_lun *lun; 5282 int length, defect_list_len; 5283 5284 CTL_DEBUG_PRINT(("ctl_format\n")); 5285 5286 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5287 5288 cdb = (struct scsi_format *)ctsio->cdb; 5289 5290 length = 0; 5291 if (cdb->byte2 & SF_FMTDATA) { 5292 if (cdb->byte2 & SF_LONGLIST) 5293 length = sizeof(struct scsi_format_header_long); 5294 else 5295 length = sizeof(struct scsi_format_header_short); 5296 } 5297 5298 if (((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) 5299 && (length > 0)) { 5300 ctsio->kern_data_ptr = malloc(length, M_CTL, M_WAITOK); 5301 ctsio->kern_data_len = length; 5302 ctsio->kern_total_len = length; 5303 ctsio->kern_data_resid = 0; 5304 ctsio->kern_rel_offset = 0; 5305 ctsio->kern_sg_entries = 0; 5306 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5307 ctsio->be_move_done = ctl_config_move_done; 5308 ctl_datamove((union ctl_io *)ctsio); 5309 5310 return (CTL_RETVAL_COMPLETE); 5311 } 5312 5313 defect_list_len = 0; 5314 5315 if (cdb->byte2 & SF_FMTDATA) { 5316 if (cdb->byte2 & SF_LONGLIST) { 5317 struct scsi_format_header_long *header; 5318 5319 header = (struct scsi_format_header_long *) 5320 ctsio->kern_data_ptr; 5321 5322 defect_list_len = scsi_4btoul(header->defect_list_len); 5323 if (defect_list_len != 0) { 5324 ctl_set_invalid_field(ctsio, 5325 /*sks_valid*/ 1, 5326 /*command*/ 0, 5327 /*field*/ 2, 5328 /*bit_valid*/ 0, 5329 /*bit*/ 0); 5330 goto bailout; 5331 } 5332 } else { 5333 struct scsi_format_header_short *header; 5334 5335 header = (struct scsi_format_header_short *) 5336 ctsio->kern_data_ptr; 5337 5338 defect_list_len = scsi_2btoul(header->defect_list_len); 5339 if (defect_list_len != 0) { 5340 ctl_set_invalid_field(ctsio, 5341 /*sks_valid*/ 1, 5342 /*command*/ 0, 5343 /*field*/ 2, 5344 /*bit_valid*/ 0, 5345 /*bit*/ 0); 5346 goto bailout; 5347 } 5348 } 5349 } 5350 5351 ctl_set_success(ctsio); 5352bailout: 5353 5354 if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) { 5355 free(ctsio->kern_data_ptr, M_CTL); 5356 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED; 5357 } 5358 5359 ctl_done((union ctl_io *)ctsio); 5360 return (CTL_RETVAL_COMPLETE); 5361} 5362 5363int 5364ctl_read_buffer(struct ctl_scsiio *ctsio) 5365{ 5366 struct ctl_lun *lun; 5367 uint64_t buffer_offset; 5368 uint32_t len; 5369 uint8_t byte2; 5370 static uint8_t descr[4]; 5371 static uint8_t echo_descr[4] = { 0 }; 5372 5373 CTL_DEBUG_PRINT(("ctl_read_buffer\n")); 5374 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5375 switch (ctsio->cdb[0]) { 5376 case READ_BUFFER: { 5377 struct scsi_read_buffer *cdb; 5378 5379 cdb = (struct scsi_read_buffer *)ctsio->cdb; 5380 buffer_offset = scsi_3btoul(cdb->offset); 5381 len = scsi_3btoul(cdb->length); 5382 byte2 = cdb->byte2; 5383 break; 5384 } 5385 case READ_BUFFER_16: { 5386 struct scsi_read_buffer_16 *cdb; 5387 5388 cdb = (struct scsi_read_buffer_16 *)ctsio->cdb; 5389 buffer_offset = scsi_8btou64(cdb->offset); 5390 len = scsi_4btoul(cdb->length); 5391 byte2 = cdb->byte2; 5392 break; 5393 } 5394 default: /* This shouldn't happen. */ 5395 ctl_set_invalid_opcode(ctsio); 5396 ctl_done((union ctl_io *)ctsio); 5397 return (CTL_RETVAL_COMPLETE); 5398 } 5399 5400 if ((byte2 & RWB_MODE) != RWB_MODE_DATA && 5401 (byte2 & RWB_MODE) != RWB_MODE_ECHO_DESCR && 5402 (byte2 & RWB_MODE) != RWB_MODE_DESCR) { 5403 ctl_set_invalid_field(ctsio, 5404 /*sks_valid*/ 1, 5405 /*command*/ 1, 5406 /*field*/ 1, 5407 /*bit_valid*/ 1, 5408 /*bit*/ 4); 5409 ctl_done((union ctl_io *)ctsio); 5410 return (CTL_RETVAL_COMPLETE); 5411 } 5412 5413 if (buffer_offset > CTL_WRITE_BUFFER_SIZE || 5414 buffer_offset + len > CTL_WRITE_BUFFER_SIZE) { 5415 ctl_set_invalid_field(ctsio, 5416 /*sks_valid*/ 1, 5417 /*command*/ 1, 5418 /*field*/ 6, 5419 /*bit_valid*/ 0, 5420 /*bit*/ 0); 5421 ctl_done((union ctl_io *)ctsio); 5422 return (CTL_RETVAL_COMPLETE); 5423 } 5424 5425 if ((byte2 & RWB_MODE) == RWB_MODE_DESCR) { 5426 descr[0] = 0; 5427 scsi_ulto3b(CTL_WRITE_BUFFER_SIZE, &descr[1]); 5428 ctsio->kern_data_ptr = descr; 5429 len = min(len, sizeof(descr)); 5430 } else if ((byte2 & RWB_MODE) == RWB_MODE_ECHO_DESCR) { 5431 ctsio->kern_data_ptr = echo_descr; 5432 len = min(len, sizeof(echo_descr)); 5433 } else { 5434 if (lun->write_buffer == NULL) { 5435 lun->write_buffer = malloc(CTL_WRITE_BUFFER_SIZE, 5436 M_CTL, M_WAITOK); 5437 } 5438 ctsio->kern_data_ptr = lun->write_buffer + buffer_offset; 5439 } 5440 ctsio->kern_data_len = len; 5441 ctsio->kern_total_len = len; 5442 ctsio->kern_data_resid = 0; 5443 ctsio->kern_rel_offset = 0; 5444 ctsio->kern_sg_entries = 0; 5445 ctl_set_success(ctsio); 5446 ctsio->be_move_done = ctl_config_move_done; 5447 ctl_datamove((union ctl_io *)ctsio); 5448 return (CTL_RETVAL_COMPLETE); 5449} 5450 5451int 5452ctl_write_buffer(struct ctl_scsiio *ctsio) 5453{ 5454 struct scsi_write_buffer *cdb; 5455 struct ctl_lun *lun; 5456 int buffer_offset, len; 5457 5458 CTL_DEBUG_PRINT(("ctl_write_buffer\n")); 5459 5460 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5461 cdb = (struct scsi_write_buffer *)ctsio->cdb; 5462 5463 if ((cdb->byte2 & RWB_MODE) != RWB_MODE_DATA) { 5464 ctl_set_invalid_field(ctsio, 5465 /*sks_valid*/ 1, 5466 /*command*/ 1, 5467 /*field*/ 1, 5468 /*bit_valid*/ 1, 5469 /*bit*/ 4); 5470 ctl_done((union ctl_io *)ctsio); 5471 return (CTL_RETVAL_COMPLETE); 5472 } 5473 5474 len = scsi_3btoul(cdb->length); 5475 buffer_offset = scsi_3btoul(cdb->offset); 5476 5477 if (buffer_offset + len > CTL_WRITE_BUFFER_SIZE) { 5478 ctl_set_invalid_field(ctsio, 5479 /*sks_valid*/ 1, 5480 /*command*/ 1, 5481 /*field*/ 6, 5482 /*bit_valid*/ 0, 5483 /*bit*/ 0); 5484 ctl_done((union ctl_io *)ctsio); 5485 return (CTL_RETVAL_COMPLETE); 5486 } 5487 5488 /* 5489 * If we've got a kernel request that hasn't been malloced yet, 5490 * malloc it and tell the caller the data buffer is here. 5491 */ 5492 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 5493 if (lun->write_buffer == NULL) { 5494 lun->write_buffer = malloc(CTL_WRITE_BUFFER_SIZE, 5495 M_CTL, M_WAITOK); 5496 } 5497 ctsio->kern_data_ptr = lun->write_buffer + buffer_offset; 5498 ctsio->kern_data_len = len; 5499 ctsio->kern_total_len = len; 5500 ctsio->kern_data_resid = 0; 5501 ctsio->kern_rel_offset = 0; 5502 ctsio->kern_sg_entries = 0; 5503 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5504 ctsio->be_move_done = ctl_config_move_done; 5505 ctl_datamove((union ctl_io *)ctsio); 5506 5507 return (CTL_RETVAL_COMPLETE); 5508 } 5509 5510 ctl_set_success(ctsio); 5511 ctl_done((union ctl_io *)ctsio); 5512 return (CTL_RETVAL_COMPLETE); 5513} 5514 5515int 5516ctl_write_same(struct ctl_scsiio *ctsio) 5517{ 5518 struct ctl_lun *lun; 5519 struct ctl_lba_len_flags *lbalen; 5520 uint64_t lba; 5521 uint32_t num_blocks; 5522 int len, retval; 5523 uint8_t byte2; 5524 5525 CTL_DEBUG_PRINT(("ctl_write_same\n")); 5526 5527 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5528 5529 switch (ctsio->cdb[0]) { 5530 case WRITE_SAME_10: { 5531 struct scsi_write_same_10 *cdb; 5532 5533 cdb = (struct scsi_write_same_10 *)ctsio->cdb; 5534 5535 lba = scsi_4btoul(cdb->addr); 5536 num_blocks = scsi_2btoul(cdb->length); 5537 byte2 = cdb->byte2; 5538 break; 5539 } 5540 case WRITE_SAME_16: { 5541 struct scsi_write_same_16 *cdb; 5542 5543 cdb = (struct scsi_write_same_16 *)ctsio->cdb; 5544 5545 lba = scsi_8btou64(cdb->addr); 5546 num_blocks = scsi_4btoul(cdb->length); 5547 byte2 = cdb->byte2; 5548 break; 5549 } 5550 default: 5551 /* 5552 * We got a command we don't support. This shouldn't 5553 * happen, commands should be filtered out above us. 5554 */ 5555 ctl_set_invalid_opcode(ctsio); 5556 ctl_done((union ctl_io *)ctsio); 5557 5558 return (CTL_RETVAL_COMPLETE); 5559 break; /* NOTREACHED */ 5560 } 5561 5562 /* ANCHOR flag can be used only together with UNMAP */ 5563 if ((byte2 & SWS_UNMAP) == 0 && (byte2 & SWS_ANCHOR) != 0) { 5564 ctl_set_invalid_field(ctsio, /*sks_valid*/ 1, 5565 /*command*/ 1, /*field*/ 1, /*bit_valid*/ 1, /*bit*/ 0); 5566 ctl_done((union ctl_io *)ctsio); 5567 return (CTL_RETVAL_COMPLETE); 5568 } 5569 5570 /* 5571 * The first check is to make sure we're in bounds, the second 5572 * check is to catch wrap-around problems. If the lba + num blocks 5573 * is less than the lba, then we've wrapped around and the block 5574 * range is invalid anyway. 5575 */ 5576 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 5577 || ((lba + num_blocks) < lba)) { 5578 ctl_set_lba_out_of_range(ctsio); 5579 ctl_done((union ctl_io *)ctsio); 5580 return (CTL_RETVAL_COMPLETE); 5581 } 5582 5583 /* Zero number of blocks means "to the last logical block" */ 5584 if (num_blocks == 0) { 5585 if ((lun->be_lun->maxlba + 1) - lba > UINT32_MAX) { 5586 ctl_set_invalid_field(ctsio, 5587 /*sks_valid*/ 0, 5588 /*command*/ 1, 5589 /*field*/ 0, 5590 /*bit_valid*/ 0, 5591 /*bit*/ 0); 5592 ctl_done((union ctl_io *)ctsio); 5593 return (CTL_RETVAL_COMPLETE); 5594 } 5595 num_blocks = (lun->be_lun->maxlba + 1) - lba; 5596 } 5597 5598 len = lun->be_lun->blocksize; 5599 5600 /* 5601 * If we've got a kernel request that hasn't been malloced yet, 5602 * malloc it and tell the caller the data buffer is here. 5603 */ 5604 if ((byte2 & SWS_NDOB) == 0 && 5605 (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 5606 ctsio->kern_data_ptr = malloc(len, M_CTL, M_WAITOK);; 5607 ctsio->kern_data_len = len; 5608 ctsio->kern_total_len = len; 5609 ctsio->kern_data_resid = 0; 5610 ctsio->kern_rel_offset = 0; 5611 ctsio->kern_sg_entries = 0; 5612 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5613 ctsio->be_move_done = ctl_config_move_done; 5614 ctl_datamove((union ctl_io *)ctsio); 5615 5616 return (CTL_RETVAL_COMPLETE); 5617 } 5618 5619 lbalen = (struct ctl_lba_len_flags *)&ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 5620 lbalen->lba = lba; 5621 lbalen->len = num_blocks; 5622 lbalen->flags = byte2; 5623 retval = lun->backend->config_write((union ctl_io *)ctsio); 5624 5625 return (retval); 5626} 5627 5628int 5629ctl_unmap(struct ctl_scsiio *ctsio) 5630{ 5631 struct ctl_lun *lun; 5632 struct scsi_unmap *cdb; 5633 struct ctl_ptr_len_flags *ptrlen; 5634 struct scsi_unmap_header *hdr; 5635 struct scsi_unmap_desc *buf, *end, *endnz, *range; 5636 uint64_t lba; 5637 uint32_t num_blocks; 5638 int len, retval; 5639 uint8_t byte2; 5640 5641 CTL_DEBUG_PRINT(("ctl_unmap\n")); 5642 5643 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5644 cdb = (struct scsi_unmap *)ctsio->cdb; 5645 5646 len = scsi_2btoul(cdb->length); 5647 byte2 = cdb->byte2; 5648 5649 /* 5650 * If we've got a kernel request that hasn't been malloced yet, 5651 * malloc it and tell the caller the data buffer is here. 5652 */ 5653 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 5654 ctsio->kern_data_ptr = malloc(len, M_CTL, M_WAITOK);; 5655 ctsio->kern_data_len = len; 5656 ctsio->kern_total_len = len; 5657 ctsio->kern_data_resid = 0; 5658 ctsio->kern_rel_offset = 0; 5659 ctsio->kern_sg_entries = 0; 5660 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5661 ctsio->be_move_done = ctl_config_move_done; 5662 ctl_datamove((union ctl_io *)ctsio); 5663 5664 return (CTL_RETVAL_COMPLETE); 5665 } 5666 5667 len = ctsio->kern_total_len - ctsio->kern_data_resid; 5668 hdr = (struct scsi_unmap_header *)ctsio->kern_data_ptr; 5669 if (len < sizeof (*hdr) || 5670 len < (scsi_2btoul(hdr->length) + sizeof(hdr->length)) || 5671 len < (scsi_2btoul(hdr->desc_length) + sizeof (*hdr)) || 5672 scsi_2btoul(hdr->desc_length) % sizeof(*buf) != 0) { 5673 ctl_set_invalid_field(ctsio, 5674 /*sks_valid*/ 0, 5675 /*command*/ 0, 5676 /*field*/ 0, 5677 /*bit_valid*/ 0, 5678 /*bit*/ 0); 5679 goto done; 5680 } 5681 len = scsi_2btoul(hdr->desc_length); 5682 buf = (struct scsi_unmap_desc *)(hdr + 1); 5683 end = buf + len / sizeof(*buf); 5684 5685 endnz = buf; 5686 for (range = buf; range < end; range++) { 5687 lba = scsi_8btou64(range->lba); 5688 num_blocks = scsi_4btoul(range->length); 5689 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 5690 || ((lba + num_blocks) < lba)) { 5691 ctl_set_lba_out_of_range(ctsio); 5692 ctl_done((union ctl_io *)ctsio); 5693 return (CTL_RETVAL_COMPLETE); 5694 } 5695 if (num_blocks != 0) 5696 endnz = range + 1; 5697 } 5698 5699 /* 5700 * Block backend can not handle zero last range. 5701 * Filter it out and return if there is nothing left. 5702 */ 5703 len = (uint8_t *)endnz - (uint8_t *)buf; 5704 if (len == 0) { 5705 ctl_set_success(ctsio); 5706 goto done; 5707 } 5708 5709 mtx_lock(&lun->lun_lock); 5710 ptrlen = (struct ctl_ptr_len_flags *) 5711 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 5712 ptrlen->ptr = (void *)buf; 5713 ptrlen->len = len; 5714 ptrlen->flags = byte2; 5715 ctl_check_blocked(lun); 5716 mtx_unlock(&lun->lun_lock); 5717 5718 retval = lun->backend->config_write((union ctl_io *)ctsio); 5719 return (retval); 5720 5721done: 5722 if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) { 5723 free(ctsio->kern_data_ptr, M_CTL); 5724 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED; 5725 } 5726 ctl_done((union ctl_io *)ctsio); 5727 return (CTL_RETVAL_COMPLETE); 5728} 5729 5730/* 5731 * Note that this function currently doesn't actually do anything inside 5732 * CTL to enforce things if the DQue bit is turned on. 5733 * 5734 * Also note that this function can't be used in the default case, because 5735 * the DQue bit isn't set in the changeable mask for the control mode page 5736 * anyway. This is just here as an example for how to implement a page 5737 * handler, and a placeholder in case we want to allow the user to turn 5738 * tagged queueing on and off. 5739 * 5740 * The D_SENSE bit handling is functional, however, and will turn 5741 * descriptor sense on and off for a given LUN. 5742 */ 5743int 5744ctl_control_page_handler(struct ctl_scsiio *ctsio, 5745 struct ctl_page_index *page_index, uint8_t *page_ptr) 5746{ 5747 struct scsi_control_page *current_cp, *saved_cp, *user_cp; 5748 struct ctl_lun *lun; 5749 int set_ua; 5750 uint32_t initidx; 5751 5752 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5753 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 5754 set_ua = 0; 5755 5756 user_cp = (struct scsi_control_page *)page_ptr; 5757 current_cp = (struct scsi_control_page *) 5758 (page_index->page_data + (page_index->page_len * 5759 CTL_PAGE_CURRENT)); 5760 saved_cp = (struct scsi_control_page *) 5761 (page_index->page_data + (page_index->page_len * 5762 CTL_PAGE_SAVED)); 5763 5764 mtx_lock(&lun->lun_lock); 5765 if (((current_cp->rlec & SCP_DSENSE) == 0) 5766 && ((user_cp->rlec & SCP_DSENSE) != 0)) { 5767 /* 5768 * Descriptor sense is currently turned off and the user 5769 * wants to turn it on. 5770 */ 5771 current_cp->rlec |= SCP_DSENSE; 5772 saved_cp->rlec |= SCP_DSENSE; 5773 lun->flags |= CTL_LUN_SENSE_DESC; 5774 set_ua = 1; 5775 } else if (((current_cp->rlec & SCP_DSENSE) != 0) 5776 && ((user_cp->rlec & SCP_DSENSE) == 0)) { 5777 /* 5778 * Descriptor sense is currently turned on, and the user 5779 * wants to turn it off. 5780 */ 5781 current_cp->rlec &= ~SCP_DSENSE; 5782 saved_cp->rlec &= ~SCP_DSENSE; 5783 lun->flags &= ~CTL_LUN_SENSE_DESC; 5784 set_ua = 1; 5785 } 5786 if ((current_cp->queue_flags & SCP_QUEUE_ALG_MASK) != 5787 (user_cp->queue_flags & SCP_QUEUE_ALG_MASK)) { 5788 current_cp->queue_flags &= ~SCP_QUEUE_ALG_MASK; 5789 current_cp->queue_flags |= user_cp->queue_flags & SCP_QUEUE_ALG_MASK; 5790 saved_cp->queue_flags &= ~SCP_QUEUE_ALG_MASK; 5791 saved_cp->queue_flags |= user_cp->queue_flags & SCP_QUEUE_ALG_MASK; 5792 set_ua = 1; 5793 } 5794 if ((current_cp->eca_and_aen & SCP_SWP) != 5795 (user_cp->eca_and_aen & SCP_SWP)) { 5796 current_cp->eca_and_aen &= ~SCP_SWP; 5797 current_cp->eca_and_aen |= user_cp->eca_and_aen & SCP_SWP; 5798 saved_cp->eca_and_aen &= ~SCP_SWP; 5799 saved_cp->eca_and_aen |= user_cp->eca_and_aen & SCP_SWP; 5800 set_ua = 1; 5801 } 5802 if (set_ua != 0) 5803 ctl_est_ua_all(lun, initidx, CTL_UA_MODE_CHANGE); 5804 mtx_unlock(&lun->lun_lock); 5805 if (set_ua) { 5806 ctl_isc_announce_mode(lun, 5807 ctl_get_initindex(&ctsio->io_hdr.nexus), 5808 page_index->page_code, page_index->subpage); 5809 } 5810 return (0); 5811} 5812 5813int 5814ctl_caching_sp_handler(struct ctl_scsiio *ctsio, 5815 struct ctl_page_index *page_index, uint8_t *page_ptr) 5816{ 5817 struct scsi_caching_page *current_cp, *saved_cp, *user_cp; 5818 struct ctl_lun *lun; 5819 int set_ua; 5820 uint32_t initidx; 5821 5822 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5823 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 5824 set_ua = 0; 5825 5826 user_cp = (struct scsi_caching_page *)page_ptr; 5827 current_cp = (struct scsi_caching_page *) 5828 (page_index->page_data + (page_index->page_len * 5829 CTL_PAGE_CURRENT)); 5830 saved_cp = (struct scsi_caching_page *) 5831 (page_index->page_data + (page_index->page_len * 5832 CTL_PAGE_SAVED)); 5833 5834 mtx_lock(&lun->lun_lock); 5835 if ((current_cp->flags1 & (SCP_WCE | SCP_RCD)) != 5836 (user_cp->flags1 & (SCP_WCE | SCP_RCD))) { 5837 current_cp->flags1 &= ~(SCP_WCE | SCP_RCD); 5838 current_cp->flags1 |= user_cp->flags1 & (SCP_WCE | SCP_RCD); 5839 saved_cp->flags1 &= ~(SCP_WCE | SCP_RCD); 5840 saved_cp->flags1 |= user_cp->flags1 & (SCP_WCE | SCP_RCD); 5841 set_ua = 1; 5842 } 5843 if (set_ua != 0) 5844 ctl_est_ua_all(lun, initidx, CTL_UA_MODE_CHANGE); 5845 mtx_unlock(&lun->lun_lock); 5846 if (set_ua) { 5847 ctl_isc_announce_mode(lun, 5848 ctl_get_initindex(&ctsio->io_hdr.nexus), 5849 page_index->page_code, page_index->subpage); 5850 } 5851 return (0); 5852} 5853 5854int 5855ctl_debugconf_sp_select_handler(struct ctl_scsiio *ctsio, 5856 struct ctl_page_index *page_index, 5857 uint8_t *page_ptr) 5858{ 5859 uint8_t *c; 5860 int i; 5861 5862 c = ((struct copan_debugconf_subpage *)page_ptr)->ctl_time_io_secs; 5863 ctl_time_io_secs = 5864 (c[0] << 8) | 5865 (c[1] << 0) | 5866 0; 5867 CTL_DEBUG_PRINT(("set ctl_time_io_secs to %d\n", ctl_time_io_secs)); 5868 printf("set ctl_time_io_secs to %d\n", ctl_time_io_secs); 5869 printf("page data:"); 5870 for (i=0; i<8; i++) 5871 printf(" %.2x",page_ptr[i]); 5872 printf("\n"); 5873 return (0); 5874} 5875 5876int 5877ctl_debugconf_sp_sense_handler(struct ctl_scsiio *ctsio, 5878 struct ctl_page_index *page_index, 5879 int pc) 5880{ 5881 struct copan_debugconf_subpage *page; 5882 5883 page = (struct copan_debugconf_subpage *)page_index->page_data + 5884 (page_index->page_len * pc); 5885 5886 switch (pc) { 5887 case SMS_PAGE_CTRL_CHANGEABLE >> 6: 5888 case SMS_PAGE_CTRL_DEFAULT >> 6: 5889 case SMS_PAGE_CTRL_SAVED >> 6: 5890 /* 5891 * We don't update the changable or default bits for this page. 5892 */ 5893 break; 5894 case SMS_PAGE_CTRL_CURRENT >> 6: 5895 page->ctl_time_io_secs[0] = ctl_time_io_secs >> 8; 5896 page->ctl_time_io_secs[1] = ctl_time_io_secs >> 0; 5897 break; 5898 default: 5899 break; 5900 } 5901 return (0); 5902} 5903 5904 5905static int 5906ctl_do_mode_select(union ctl_io *io) 5907{ 5908 struct scsi_mode_page_header *page_header; 5909 struct ctl_page_index *page_index; 5910 struct ctl_scsiio *ctsio; 5911 int page_len, page_len_offset, page_len_size; 5912 union ctl_modepage_info *modepage_info; 5913 struct ctl_lun *lun; 5914 int *len_left, *len_used; 5915 int retval, i; 5916 5917 ctsio = &io->scsiio; 5918 page_index = NULL; 5919 page_len = 0; 5920 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5921 5922 modepage_info = (union ctl_modepage_info *) 5923 ctsio->io_hdr.ctl_private[CTL_PRIV_MODEPAGE].bytes; 5924 len_left = &modepage_info->header.len_left; 5925 len_used = &modepage_info->header.len_used; 5926 5927do_next_page: 5928 5929 page_header = (struct scsi_mode_page_header *) 5930 (ctsio->kern_data_ptr + *len_used); 5931 5932 if (*len_left == 0) { 5933 free(ctsio->kern_data_ptr, M_CTL); 5934 ctl_set_success(ctsio); 5935 ctl_done((union ctl_io *)ctsio); 5936 return (CTL_RETVAL_COMPLETE); 5937 } else if (*len_left < sizeof(struct scsi_mode_page_header)) { 5938 5939 free(ctsio->kern_data_ptr, M_CTL); 5940 ctl_set_param_len_error(ctsio); 5941 ctl_done((union ctl_io *)ctsio); 5942 return (CTL_RETVAL_COMPLETE); 5943 5944 } else if ((page_header->page_code & SMPH_SPF) 5945 && (*len_left < sizeof(struct scsi_mode_page_header_sp))) { 5946 5947 free(ctsio->kern_data_ptr, M_CTL); 5948 ctl_set_param_len_error(ctsio); 5949 ctl_done((union ctl_io *)ctsio); 5950 return (CTL_RETVAL_COMPLETE); 5951 } 5952 5953 5954 /* 5955 * XXX KDM should we do something with the block descriptor? 5956 */ 5957 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 5958 page_index = &lun->mode_pages.index[i]; 5959 if (lun->be_lun->lun_type == T_DIRECT && 5960 (page_index->page_flags & CTL_PAGE_FLAG_DIRECT) == 0) 5961 continue; 5962 if (lun->be_lun->lun_type == T_PROCESSOR && 5963 (page_index->page_flags & CTL_PAGE_FLAG_PROC) == 0) 5964 continue; 5965 if (lun->be_lun->lun_type == T_CDROM && 5966 (page_index->page_flags & CTL_PAGE_FLAG_CDROM) == 0) 5967 continue; 5968 5969 if ((page_index->page_code & SMPH_PC_MASK) != 5970 (page_header->page_code & SMPH_PC_MASK)) 5971 continue; 5972 5973 /* 5974 * If neither page has a subpage code, then we've got a 5975 * match. 5976 */ 5977 if (((page_index->page_code & SMPH_SPF) == 0) 5978 && ((page_header->page_code & SMPH_SPF) == 0)) { 5979 page_len = page_header->page_length; 5980 break; 5981 } 5982 5983 /* 5984 * If both pages have subpages, then the subpage numbers 5985 * have to match. 5986 */ 5987 if ((page_index->page_code & SMPH_SPF) 5988 && (page_header->page_code & SMPH_SPF)) { 5989 struct scsi_mode_page_header_sp *sph; 5990 5991 sph = (struct scsi_mode_page_header_sp *)page_header; 5992 if (page_index->subpage == sph->subpage) { 5993 page_len = scsi_2btoul(sph->page_length); 5994 break; 5995 } 5996 } 5997 } 5998 5999 /* 6000 * If we couldn't find the page, or if we don't have a mode select 6001 * handler for it, send back an error to the user. 6002 */ 6003 if ((i >= CTL_NUM_MODE_PAGES) 6004 || (page_index->select_handler == NULL)) { 6005 ctl_set_invalid_field(ctsio, 6006 /*sks_valid*/ 1, 6007 /*command*/ 0, 6008 /*field*/ *len_used, 6009 /*bit_valid*/ 0, 6010 /*bit*/ 0); 6011 free(ctsio->kern_data_ptr, M_CTL); 6012 ctl_done((union ctl_io *)ctsio); 6013 return (CTL_RETVAL_COMPLETE); 6014 } 6015 6016 if (page_index->page_code & SMPH_SPF) { 6017 page_len_offset = 2; 6018 page_len_size = 2; 6019 } else { 6020 page_len_size = 1; 6021 page_len_offset = 1; 6022 } 6023 6024 /* 6025 * If the length the initiator gives us isn't the one we specify in 6026 * the mode page header, or if they didn't specify enough data in 6027 * the CDB to avoid truncating this page, kick out the request. 6028 */ 6029 if ((page_len != (page_index->page_len - page_len_offset - 6030 page_len_size)) 6031 || (*len_left < page_index->page_len)) { 6032 6033 6034 ctl_set_invalid_field(ctsio, 6035 /*sks_valid*/ 1, 6036 /*command*/ 0, 6037 /*field*/ *len_used + page_len_offset, 6038 /*bit_valid*/ 0, 6039 /*bit*/ 0); 6040 free(ctsio->kern_data_ptr, M_CTL); 6041 ctl_done((union ctl_io *)ctsio); 6042 return (CTL_RETVAL_COMPLETE); 6043 } 6044 6045 /* 6046 * Run through the mode page, checking to make sure that the bits 6047 * the user changed are actually legal for him to change. 6048 */ 6049 for (i = 0; i < page_index->page_len; i++) { 6050 uint8_t *user_byte, *change_mask, *current_byte; 6051 int bad_bit; 6052 int j; 6053 6054 user_byte = (uint8_t *)page_header + i; 6055 change_mask = page_index->page_data + 6056 (page_index->page_len * CTL_PAGE_CHANGEABLE) + i; 6057 current_byte = page_index->page_data + 6058 (page_index->page_len * CTL_PAGE_CURRENT) + i; 6059 6060 /* 6061 * Check to see whether the user set any bits in this byte 6062 * that he is not allowed to set. 6063 */ 6064 if ((*user_byte & ~(*change_mask)) == 6065 (*current_byte & ~(*change_mask))) 6066 continue; 6067 6068 /* 6069 * Go through bit by bit to determine which one is illegal. 6070 */ 6071 bad_bit = 0; 6072 for (j = 7; j >= 0; j--) { 6073 if ((((1 << i) & ~(*change_mask)) & *user_byte) != 6074 (((1 << i) & ~(*change_mask)) & *current_byte)) { 6075 bad_bit = i; 6076 break; 6077 } 6078 } 6079 ctl_set_invalid_field(ctsio, 6080 /*sks_valid*/ 1, 6081 /*command*/ 0, 6082 /*field*/ *len_used + i, 6083 /*bit_valid*/ 1, 6084 /*bit*/ bad_bit); 6085 free(ctsio->kern_data_ptr, M_CTL); 6086 ctl_done((union ctl_io *)ctsio); 6087 return (CTL_RETVAL_COMPLETE); 6088 } 6089 6090 /* 6091 * Decrement these before we call the page handler, since we may 6092 * end up getting called back one way or another before the handler 6093 * returns to this context. 6094 */ 6095 *len_left -= page_index->page_len; 6096 *len_used += page_index->page_len; 6097 6098 retval = page_index->select_handler(ctsio, page_index, 6099 (uint8_t *)page_header); 6100 6101 /* 6102 * If the page handler returns CTL_RETVAL_QUEUED, then we need to 6103 * wait until this queued command completes to finish processing 6104 * the mode page. If it returns anything other than 6105 * CTL_RETVAL_COMPLETE (e.g. CTL_RETVAL_ERROR), then it should have 6106 * already set the sense information, freed the data pointer, and 6107 * completed the io for us. 6108 */ 6109 if (retval != CTL_RETVAL_COMPLETE) 6110 goto bailout_no_done; 6111 6112 /* 6113 * If the initiator sent us more than one page, parse the next one. 6114 */ 6115 if (*len_left > 0) 6116 goto do_next_page; 6117 6118 ctl_set_success(ctsio); 6119 free(ctsio->kern_data_ptr, M_CTL); 6120 ctl_done((union ctl_io *)ctsio); 6121 6122bailout_no_done: 6123 6124 return (CTL_RETVAL_COMPLETE); 6125 6126} 6127 6128int 6129ctl_mode_select(struct ctl_scsiio *ctsio) 6130{ 6131 int param_len, pf, sp; 6132 int header_size, bd_len; 6133 union ctl_modepage_info *modepage_info; 6134 6135 switch (ctsio->cdb[0]) { 6136 case MODE_SELECT_6: { 6137 struct scsi_mode_select_6 *cdb; 6138 6139 cdb = (struct scsi_mode_select_6 *)ctsio->cdb; 6140 6141 pf = (cdb->byte2 & SMS_PF) ? 1 : 0; 6142 sp = (cdb->byte2 & SMS_SP) ? 1 : 0; 6143 param_len = cdb->length; 6144 header_size = sizeof(struct scsi_mode_header_6); 6145 break; 6146 } 6147 case MODE_SELECT_10: { 6148 struct scsi_mode_select_10 *cdb; 6149 6150 cdb = (struct scsi_mode_select_10 *)ctsio->cdb; 6151 6152 pf = (cdb->byte2 & SMS_PF) ? 1 : 0; 6153 sp = (cdb->byte2 & SMS_SP) ? 1 : 0; 6154 param_len = scsi_2btoul(cdb->length); 6155 header_size = sizeof(struct scsi_mode_header_10); 6156 break; 6157 } 6158 default: 6159 ctl_set_invalid_opcode(ctsio); 6160 ctl_done((union ctl_io *)ctsio); 6161 return (CTL_RETVAL_COMPLETE); 6162 } 6163 6164 /* 6165 * From SPC-3: 6166 * "A parameter list length of zero indicates that the Data-Out Buffer 6167 * shall be empty. This condition shall not be considered as an error." 6168 */ 6169 if (param_len == 0) { 6170 ctl_set_success(ctsio); 6171 ctl_done((union ctl_io *)ctsio); 6172 return (CTL_RETVAL_COMPLETE); 6173 } 6174 6175 /* 6176 * Since we'll hit this the first time through, prior to 6177 * allocation, we don't need to free a data buffer here. 6178 */ 6179 if (param_len < header_size) { 6180 ctl_set_param_len_error(ctsio); 6181 ctl_done((union ctl_io *)ctsio); 6182 return (CTL_RETVAL_COMPLETE); 6183 } 6184 6185 /* 6186 * Allocate the data buffer and grab the user's data. In theory, 6187 * we shouldn't have to sanity check the parameter list length here 6188 * because the maximum size is 64K. We should be able to malloc 6189 * that much without too many problems. 6190 */ 6191 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 6192 ctsio->kern_data_ptr = malloc(param_len, M_CTL, M_WAITOK); 6193 ctsio->kern_data_len = param_len; 6194 ctsio->kern_total_len = param_len; 6195 ctsio->kern_data_resid = 0; 6196 ctsio->kern_rel_offset = 0; 6197 ctsio->kern_sg_entries = 0; 6198 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6199 ctsio->be_move_done = ctl_config_move_done; 6200 ctl_datamove((union ctl_io *)ctsio); 6201 6202 return (CTL_RETVAL_COMPLETE); 6203 } 6204 6205 switch (ctsio->cdb[0]) { 6206 case MODE_SELECT_6: { 6207 struct scsi_mode_header_6 *mh6; 6208 6209 mh6 = (struct scsi_mode_header_6 *)ctsio->kern_data_ptr; 6210 bd_len = mh6->blk_desc_len; 6211 break; 6212 } 6213 case MODE_SELECT_10: { 6214 struct scsi_mode_header_10 *mh10; 6215 6216 mh10 = (struct scsi_mode_header_10 *)ctsio->kern_data_ptr; 6217 bd_len = scsi_2btoul(mh10->blk_desc_len); 6218 break; 6219 } 6220 default: 6221 panic("Invalid CDB type %#x", ctsio->cdb[0]); 6222 break; 6223 } 6224 6225 if (param_len < (header_size + bd_len)) { 6226 free(ctsio->kern_data_ptr, M_CTL); 6227 ctl_set_param_len_error(ctsio); 6228 ctl_done((union ctl_io *)ctsio); 6229 return (CTL_RETVAL_COMPLETE); 6230 } 6231 6232 /* 6233 * Set the IO_CONT flag, so that if this I/O gets passed to 6234 * ctl_config_write_done(), it'll get passed back to 6235 * ctl_do_mode_select() for further processing, or completion if 6236 * we're all done. 6237 */ 6238 ctsio->io_hdr.flags |= CTL_FLAG_IO_CONT; 6239 ctsio->io_cont = ctl_do_mode_select; 6240 6241 modepage_info = (union ctl_modepage_info *) 6242 ctsio->io_hdr.ctl_private[CTL_PRIV_MODEPAGE].bytes; 6243 memset(modepage_info, 0, sizeof(*modepage_info)); 6244 modepage_info->header.len_left = param_len - header_size - bd_len; 6245 modepage_info->header.len_used = header_size + bd_len; 6246 6247 return (ctl_do_mode_select((union ctl_io *)ctsio)); 6248} 6249 6250int 6251ctl_mode_sense(struct ctl_scsiio *ctsio) 6252{ 6253 struct ctl_lun *lun; 6254 int pc, page_code, dbd, llba, subpage; 6255 int alloc_len, page_len, header_len, total_len; 6256 struct scsi_mode_block_descr *block_desc; 6257 struct ctl_page_index *page_index; 6258 6259 dbd = 0; 6260 llba = 0; 6261 block_desc = NULL; 6262 6263 CTL_DEBUG_PRINT(("ctl_mode_sense\n")); 6264 6265 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6266 switch (ctsio->cdb[0]) { 6267 case MODE_SENSE_6: { 6268 struct scsi_mode_sense_6 *cdb; 6269 6270 cdb = (struct scsi_mode_sense_6 *)ctsio->cdb; 6271 6272 header_len = sizeof(struct scsi_mode_hdr_6); 6273 if (cdb->byte2 & SMS_DBD) 6274 dbd = 1; 6275 else 6276 header_len += sizeof(struct scsi_mode_block_descr); 6277 6278 pc = (cdb->page & SMS_PAGE_CTRL_MASK) >> 6; 6279 page_code = cdb->page & SMS_PAGE_CODE; 6280 subpage = cdb->subpage; 6281 alloc_len = cdb->length; 6282 break; 6283 } 6284 case MODE_SENSE_10: { 6285 struct scsi_mode_sense_10 *cdb; 6286 6287 cdb = (struct scsi_mode_sense_10 *)ctsio->cdb; 6288 6289 header_len = sizeof(struct scsi_mode_hdr_10); 6290 6291 if (cdb->byte2 & SMS_DBD) 6292 dbd = 1; 6293 else 6294 header_len += sizeof(struct scsi_mode_block_descr); 6295 if (cdb->byte2 & SMS10_LLBAA) 6296 llba = 1; 6297 pc = (cdb->page & SMS_PAGE_CTRL_MASK) >> 6; 6298 page_code = cdb->page & SMS_PAGE_CODE; 6299 subpage = cdb->subpage; 6300 alloc_len = scsi_2btoul(cdb->length); 6301 break; 6302 } 6303 default: 6304 ctl_set_invalid_opcode(ctsio); 6305 ctl_done((union ctl_io *)ctsio); 6306 return (CTL_RETVAL_COMPLETE); 6307 break; /* NOTREACHED */ 6308 } 6309 6310 /* 6311 * We have to make a first pass through to calculate the size of 6312 * the pages that match the user's query. Then we allocate enough 6313 * memory to hold it, and actually copy the data into the buffer. 6314 */ 6315 switch (page_code) { 6316 case SMS_ALL_PAGES_PAGE: { 6317 int i; 6318 6319 page_len = 0; 6320 6321 /* 6322 * At the moment, values other than 0 and 0xff here are 6323 * reserved according to SPC-3. 6324 */ 6325 if ((subpage != SMS_SUBPAGE_PAGE_0) 6326 && (subpage != SMS_SUBPAGE_ALL)) { 6327 ctl_set_invalid_field(ctsio, 6328 /*sks_valid*/ 1, 6329 /*command*/ 1, 6330 /*field*/ 3, 6331 /*bit_valid*/ 0, 6332 /*bit*/ 0); 6333 ctl_done((union ctl_io *)ctsio); 6334 return (CTL_RETVAL_COMPLETE); 6335 } 6336 6337 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6338 page_index = &lun->mode_pages.index[i]; 6339 6340 /* Make sure the page is supported for this dev type */ 6341 if (lun->be_lun->lun_type == T_DIRECT && 6342 (page_index->page_flags & CTL_PAGE_FLAG_DIRECT) == 0) 6343 continue; 6344 if (lun->be_lun->lun_type == T_PROCESSOR && 6345 (page_index->page_flags & CTL_PAGE_FLAG_PROC) == 0) 6346 continue; 6347 if (lun->be_lun->lun_type == T_CDROM && 6348 (page_index->page_flags & CTL_PAGE_FLAG_CDROM) == 0) 6349 continue; 6350 6351 /* 6352 * We don't use this subpage if the user didn't 6353 * request all subpages. 6354 */ 6355 if ((page_index->subpage != 0) 6356 && (subpage == SMS_SUBPAGE_PAGE_0)) 6357 continue; 6358 6359#if 0 6360 printf("found page %#x len %d\n", 6361 page_index->page_code & SMPH_PC_MASK, 6362 page_index->page_len); 6363#endif 6364 page_len += page_index->page_len; 6365 } 6366 break; 6367 } 6368 default: { 6369 int i; 6370 6371 page_len = 0; 6372 6373 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6374 page_index = &lun->mode_pages.index[i]; 6375 6376 /* Make sure the page is supported for this dev type */ 6377 if (lun->be_lun->lun_type == T_DIRECT && 6378 (page_index->page_flags & CTL_PAGE_FLAG_DIRECT) == 0) 6379 continue; 6380 if (lun->be_lun->lun_type == T_PROCESSOR && 6381 (page_index->page_flags & CTL_PAGE_FLAG_PROC) == 0) 6382 continue; 6383 if (lun->be_lun->lun_type == T_CDROM && 6384 (page_index->page_flags & CTL_PAGE_FLAG_CDROM) == 0) 6385 continue; 6386 6387 /* Look for the right page code */ 6388 if ((page_index->page_code & SMPH_PC_MASK) != page_code) 6389 continue; 6390 6391 /* Look for the right subpage or the subpage wildcard*/ 6392 if ((page_index->subpage != subpage) 6393 && (subpage != SMS_SUBPAGE_ALL)) 6394 continue; 6395 6396#if 0 6397 printf("found page %#x len %d\n", 6398 page_index->page_code & SMPH_PC_MASK, 6399 page_index->page_len); 6400#endif 6401 6402 page_len += page_index->page_len; 6403 } 6404 6405 if (page_len == 0) { 6406 ctl_set_invalid_field(ctsio, 6407 /*sks_valid*/ 1, 6408 /*command*/ 1, 6409 /*field*/ 2, 6410 /*bit_valid*/ 1, 6411 /*bit*/ 5); 6412 ctl_done((union ctl_io *)ctsio); 6413 return (CTL_RETVAL_COMPLETE); 6414 } 6415 break; 6416 } 6417 } 6418 6419 total_len = header_len + page_len; 6420#if 0 6421 printf("header_len = %d, page_len = %d, total_len = %d\n", 6422 header_len, page_len, total_len); 6423#endif 6424 6425 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 6426 ctsio->kern_sg_entries = 0; 6427 ctsio->kern_data_resid = 0; 6428 ctsio->kern_rel_offset = 0; 6429 if (total_len < alloc_len) { 6430 ctsio->residual = alloc_len - total_len; 6431 ctsio->kern_data_len = total_len; 6432 ctsio->kern_total_len = total_len; 6433 } else { 6434 ctsio->residual = 0; 6435 ctsio->kern_data_len = alloc_len; 6436 ctsio->kern_total_len = alloc_len; 6437 } 6438 6439 switch (ctsio->cdb[0]) { 6440 case MODE_SENSE_6: { 6441 struct scsi_mode_hdr_6 *header; 6442 6443 header = (struct scsi_mode_hdr_6 *)ctsio->kern_data_ptr; 6444 6445 header->datalen = MIN(total_len - 1, 254); 6446 if (lun->be_lun->lun_type == T_DIRECT) { 6447 header->dev_specific = 0x10; /* DPOFUA */ 6448 if ((lun->be_lun->flags & CTL_LUN_FLAG_READONLY) || 6449 (lun->mode_pages.control_page[CTL_PAGE_CURRENT] 6450 .eca_and_aen & SCP_SWP) != 0) 6451 header->dev_specific |= 0x80; /* WP */ 6452 } 6453 if (dbd) 6454 header->block_descr_len = 0; 6455 else 6456 header->block_descr_len = 6457 sizeof(struct scsi_mode_block_descr); 6458 block_desc = (struct scsi_mode_block_descr *)&header[1]; 6459 break; 6460 } 6461 case MODE_SENSE_10: { 6462 struct scsi_mode_hdr_10 *header; 6463 int datalen; 6464 6465 header = (struct scsi_mode_hdr_10 *)ctsio->kern_data_ptr; 6466 6467 datalen = MIN(total_len - 2, 65533); 6468 scsi_ulto2b(datalen, header->datalen); 6469 if (lun->be_lun->lun_type == T_DIRECT) { 6470 header->dev_specific = 0x10; /* DPOFUA */ 6471 if ((lun->be_lun->flags & CTL_LUN_FLAG_READONLY) || 6472 (lun->mode_pages.control_page[CTL_PAGE_CURRENT] 6473 .eca_and_aen & SCP_SWP) != 0) 6474 header->dev_specific |= 0x80; /* WP */ 6475 } 6476 if (dbd) 6477 scsi_ulto2b(0, header->block_descr_len); 6478 else 6479 scsi_ulto2b(sizeof(struct scsi_mode_block_descr), 6480 header->block_descr_len); 6481 block_desc = (struct scsi_mode_block_descr *)&header[1]; 6482 break; 6483 } 6484 default: 6485 panic("invalid CDB type %#x", ctsio->cdb[0]); 6486 break; /* NOTREACHED */ 6487 } 6488 6489 /* 6490 * If we've got a disk, use its blocksize in the block 6491 * descriptor. Otherwise, just set it to 0. 6492 */ 6493 if (dbd == 0) { 6494 if (lun->be_lun->lun_type == T_DIRECT) 6495 scsi_ulto3b(lun->be_lun->blocksize, 6496 block_desc->block_len); 6497 else 6498 scsi_ulto3b(0, block_desc->block_len); 6499 } 6500 6501 switch (page_code) { 6502 case SMS_ALL_PAGES_PAGE: { 6503 int i, data_used; 6504 6505 data_used = header_len; 6506 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6507 struct ctl_page_index *page_index; 6508 6509 page_index = &lun->mode_pages.index[i]; 6510 if (lun->be_lun->lun_type == T_DIRECT && 6511 (page_index->page_flags & CTL_PAGE_FLAG_DIRECT) == 0) 6512 continue; 6513 if (lun->be_lun->lun_type == T_PROCESSOR && 6514 (page_index->page_flags & CTL_PAGE_FLAG_PROC) == 0) 6515 continue; 6516 if (lun->be_lun->lun_type == T_CDROM && 6517 (page_index->page_flags & CTL_PAGE_FLAG_CDROM) == 0) 6518 continue; 6519 6520 /* 6521 * We don't use this subpage if the user didn't 6522 * request all subpages. We already checked (above) 6523 * to make sure the user only specified a subpage 6524 * of 0 or 0xff in the SMS_ALL_PAGES_PAGE case. 6525 */ 6526 if ((page_index->subpage != 0) 6527 && (subpage == SMS_SUBPAGE_PAGE_0)) 6528 continue; 6529 6530 /* 6531 * Call the handler, if it exists, to update the 6532 * page to the latest values. 6533 */ 6534 if (page_index->sense_handler != NULL) 6535 page_index->sense_handler(ctsio, page_index,pc); 6536 6537 memcpy(ctsio->kern_data_ptr + data_used, 6538 page_index->page_data + 6539 (page_index->page_len * pc), 6540 page_index->page_len); 6541 data_used += page_index->page_len; 6542 } 6543 break; 6544 } 6545 default: { 6546 int i, data_used; 6547 6548 data_used = header_len; 6549 6550 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6551 struct ctl_page_index *page_index; 6552 6553 page_index = &lun->mode_pages.index[i]; 6554 6555 /* Look for the right page code */ 6556 if ((page_index->page_code & SMPH_PC_MASK) != page_code) 6557 continue; 6558 6559 /* Look for the right subpage or the subpage wildcard*/ 6560 if ((page_index->subpage != subpage) 6561 && (subpage != SMS_SUBPAGE_ALL)) 6562 continue; 6563 6564 /* Make sure the page is supported for this dev type */ 6565 if (lun->be_lun->lun_type == T_DIRECT && 6566 (page_index->page_flags & CTL_PAGE_FLAG_DIRECT) == 0) 6567 continue; 6568 if (lun->be_lun->lun_type == T_PROCESSOR && 6569 (page_index->page_flags & CTL_PAGE_FLAG_PROC) == 0) 6570 continue; 6571 if (lun->be_lun->lun_type == T_CDROM && 6572 (page_index->page_flags & CTL_PAGE_FLAG_CDROM) == 0) 6573 continue; 6574 6575 /* 6576 * Call the handler, if it exists, to update the 6577 * page to the latest values. 6578 */ 6579 if (page_index->sense_handler != NULL) 6580 page_index->sense_handler(ctsio, page_index,pc); 6581 6582 memcpy(ctsio->kern_data_ptr + data_used, 6583 page_index->page_data + 6584 (page_index->page_len * pc), 6585 page_index->page_len); 6586 data_used += page_index->page_len; 6587 } 6588 break; 6589 } 6590 } 6591 6592 ctl_set_success(ctsio); 6593 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6594 ctsio->be_move_done = ctl_config_move_done; 6595 ctl_datamove((union ctl_io *)ctsio); 6596 return (CTL_RETVAL_COMPLETE); 6597} 6598 6599int 6600ctl_lbp_log_sense_handler(struct ctl_scsiio *ctsio, 6601 struct ctl_page_index *page_index, 6602 int pc) 6603{ 6604 struct ctl_lun *lun; 6605 struct scsi_log_param_header *phdr; 6606 uint8_t *data; 6607 uint64_t val; 6608 6609 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6610 data = page_index->page_data; 6611 6612 if (lun->backend->lun_attr != NULL && 6613 (val = lun->backend->lun_attr(lun->be_lun->be_lun, "blocksavail")) 6614 != UINT64_MAX) { 6615 phdr = (struct scsi_log_param_header *)data; 6616 scsi_ulto2b(0x0001, phdr->param_code); 6617 phdr->param_control = SLP_LBIN | SLP_LP; 6618 phdr->param_len = 8; 6619 data = (uint8_t *)(phdr + 1); 6620 scsi_ulto4b(val >> CTL_LBP_EXPONENT, data); 6621 data[4] = 0x02; /* per-pool */ 6622 data += phdr->param_len; 6623 } 6624 6625 if (lun->backend->lun_attr != NULL && 6626 (val = lun->backend->lun_attr(lun->be_lun->be_lun, "blocksused")) 6627 != UINT64_MAX) { 6628 phdr = (struct scsi_log_param_header *)data; 6629 scsi_ulto2b(0x0002, phdr->param_code); 6630 phdr->param_control = SLP_LBIN | SLP_LP; 6631 phdr->param_len = 8; 6632 data = (uint8_t *)(phdr + 1); 6633 scsi_ulto4b(val >> CTL_LBP_EXPONENT, data); 6634 data[4] = 0x01; /* per-LUN */ 6635 data += phdr->param_len; 6636 } 6637 6638 if (lun->backend->lun_attr != NULL && 6639 (val = lun->backend->lun_attr(lun->be_lun->be_lun, "poolblocksavail")) 6640 != UINT64_MAX) { 6641 phdr = (struct scsi_log_param_header *)data; 6642 scsi_ulto2b(0x00f1, phdr->param_code); 6643 phdr->param_control = SLP_LBIN | SLP_LP; 6644 phdr->param_len = 8; 6645 data = (uint8_t *)(phdr + 1); 6646 scsi_ulto4b(val >> CTL_LBP_EXPONENT, data); 6647 data[4] = 0x02; /* per-pool */ 6648 data += phdr->param_len; 6649 } 6650 6651 if (lun->backend->lun_attr != NULL && 6652 (val = lun->backend->lun_attr(lun->be_lun->be_lun, "poolblocksused")) 6653 != UINT64_MAX) { 6654 phdr = (struct scsi_log_param_header *)data; 6655 scsi_ulto2b(0x00f2, phdr->param_code); 6656 phdr->param_control = SLP_LBIN | SLP_LP; 6657 phdr->param_len = 8; 6658 data = (uint8_t *)(phdr + 1); 6659 scsi_ulto4b(val >> CTL_LBP_EXPONENT, data); 6660 data[4] = 0x02; /* per-pool */ 6661 data += phdr->param_len; 6662 } 6663 6664 page_index->page_len = data - page_index->page_data; 6665 return (0); 6666} 6667 6668int 6669ctl_sap_log_sense_handler(struct ctl_scsiio *ctsio, 6670 struct ctl_page_index *page_index, 6671 int pc) 6672{ 6673 struct ctl_lun *lun; 6674 struct stat_page *data; 6675 uint64_t rn, wn, rb, wb; 6676 struct bintime rt, wt; 6677 int i; 6678 6679 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6680 data = (struct stat_page *)page_index->page_data; 6681 6682 scsi_ulto2b(SLP_SAP, data->sap.hdr.param_code); 6683 data->sap.hdr.param_control = SLP_LBIN; 6684 data->sap.hdr.param_len = sizeof(struct scsi_log_stat_and_perf) - 6685 sizeof(struct scsi_log_param_header); 6686 rn = wn = rb = wb = 0; 6687 bintime_clear(&rt); 6688 bintime_clear(&wt); 6689 for (i = 0; i < CTL_MAX_PORTS; i++) { 6690 rn += lun->stats.ports[i].operations[CTL_STATS_READ]; 6691 wn += lun->stats.ports[i].operations[CTL_STATS_WRITE]; 6692 rb += lun->stats.ports[i].bytes[CTL_STATS_READ]; 6693 wb += lun->stats.ports[i].bytes[CTL_STATS_WRITE]; 6694 bintime_add(&rt, &lun->stats.ports[i].time[CTL_STATS_READ]); 6695 bintime_add(&wt, &lun->stats.ports[i].time[CTL_STATS_WRITE]); 6696 } 6697 scsi_u64to8b(rn, data->sap.read_num); 6698 scsi_u64to8b(wn, data->sap.write_num); 6699 if (lun->stats.blocksize > 0) { 6700 scsi_u64to8b(wb / lun->stats.blocksize, 6701 data->sap.recvieved_lba); 6702 scsi_u64to8b(rb / lun->stats.blocksize, 6703 data->sap.transmitted_lba); 6704 } 6705 scsi_u64to8b((uint64_t)rt.sec * 1000 + rt.frac / (UINT64_MAX / 1000), 6706 data->sap.read_int); 6707 scsi_u64to8b((uint64_t)wt.sec * 1000 + wt.frac / (UINT64_MAX / 1000), 6708 data->sap.write_int); 6709 scsi_u64to8b(0, data->sap.weighted_num); 6710 scsi_u64to8b(0, data->sap.weighted_int); 6711 scsi_ulto2b(SLP_IT, data->it.hdr.param_code); 6712 data->it.hdr.param_control = SLP_LBIN; 6713 data->it.hdr.param_len = sizeof(struct scsi_log_idle_time) - 6714 sizeof(struct scsi_log_param_header); 6715#ifdef CTL_TIME_IO 6716 scsi_u64to8b(lun->idle_time / SBT_1MS, data->it.idle_int); 6717#endif 6718 scsi_ulto2b(SLP_TI, data->ti.hdr.param_code); 6719 data->it.hdr.param_control = SLP_LBIN; 6720 data->ti.hdr.param_len = sizeof(struct scsi_log_time_interval) - 6721 sizeof(struct scsi_log_param_header); 6722 scsi_ulto4b(3, data->ti.exponent); 6723 scsi_ulto4b(1, data->ti.integer); 6724 6725 page_index->page_len = sizeof(*data); 6726 return (0); 6727} 6728 6729int 6730ctl_log_sense(struct ctl_scsiio *ctsio) 6731{ 6732 struct ctl_lun *lun; 6733 int i, pc, page_code, subpage; 6734 int alloc_len, total_len; 6735 struct ctl_page_index *page_index; 6736 struct scsi_log_sense *cdb; 6737 struct scsi_log_header *header; 6738 6739 CTL_DEBUG_PRINT(("ctl_log_sense\n")); 6740 6741 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6742 cdb = (struct scsi_log_sense *)ctsio->cdb; 6743 pc = (cdb->page & SLS_PAGE_CTRL_MASK) >> 6; 6744 page_code = cdb->page & SLS_PAGE_CODE; 6745 subpage = cdb->subpage; 6746 alloc_len = scsi_2btoul(cdb->length); 6747 6748 page_index = NULL; 6749 for (i = 0; i < CTL_NUM_LOG_PAGES; i++) { 6750 page_index = &lun->log_pages.index[i]; 6751 6752 /* Look for the right page code */ 6753 if ((page_index->page_code & SL_PAGE_CODE) != page_code) 6754 continue; 6755 6756 /* Look for the right subpage or the subpage wildcard*/ 6757 if (page_index->subpage != subpage) 6758 continue; 6759 6760 break; 6761 } 6762 if (i >= CTL_NUM_LOG_PAGES) { 6763 ctl_set_invalid_field(ctsio, 6764 /*sks_valid*/ 1, 6765 /*command*/ 1, 6766 /*field*/ 2, 6767 /*bit_valid*/ 0, 6768 /*bit*/ 0); 6769 ctl_done((union ctl_io *)ctsio); 6770 return (CTL_RETVAL_COMPLETE); 6771 } 6772 6773 total_len = sizeof(struct scsi_log_header) + page_index->page_len; 6774 6775 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 6776 ctsio->kern_sg_entries = 0; 6777 ctsio->kern_data_resid = 0; 6778 ctsio->kern_rel_offset = 0; 6779 if (total_len < alloc_len) { 6780 ctsio->residual = alloc_len - total_len; 6781 ctsio->kern_data_len = total_len; 6782 ctsio->kern_total_len = total_len; 6783 } else { 6784 ctsio->residual = 0; 6785 ctsio->kern_data_len = alloc_len; 6786 ctsio->kern_total_len = alloc_len; 6787 } 6788 6789 header = (struct scsi_log_header *)ctsio->kern_data_ptr; 6790 header->page = page_index->page_code; 6791 if (page_index->subpage) { 6792 header->page |= SL_SPF; 6793 header->subpage = page_index->subpage; 6794 } 6795 scsi_ulto2b(page_index->page_len, header->datalen); 6796 6797 /* 6798 * Call the handler, if it exists, to update the 6799 * page to the latest values. 6800 */ 6801 if (page_index->sense_handler != NULL) 6802 page_index->sense_handler(ctsio, page_index, pc); 6803 6804 memcpy(header + 1, page_index->page_data, page_index->page_len); 6805 6806 ctl_set_success(ctsio); 6807 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6808 ctsio->be_move_done = ctl_config_move_done; 6809 ctl_datamove((union ctl_io *)ctsio); 6810 return (CTL_RETVAL_COMPLETE); 6811} 6812 6813int 6814ctl_read_capacity(struct ctl_scsiio *ctsio) 6815{ 6816 struct scsi_read_capacity *cdb; 6817 struct scsi_read_capacity_data *data; 6818 struct ctl_lun *lun; 6819 uint32_t lba; 6820 6821 CTL_DEBUG_PRINT(("ctl_read_capacity\n")); 6822 6823 cdb = (struct scsi_read_capacity *)ctsio->cdb; 6824 6825 lba = scsi_4btoul(cdb->addr); 6826 if (((cdb->pmi & SRC_PMI) == 0) 6827 && (lba != 0)) { 6828 ctl_set_invalid_field(/*ctsio*/ ctsio, 6829 /*sks_valid*/ 1, 6830 /*command*/ 1, 6831 /*field*/ 2, 6832 /*bit_valid*/ 0, 6833 /*bit*/ 0); 6834 ctl_done((union ctl_io *)ctsio); 6835 return (CTL_RETVAL_COMPLETE); 6836 } 6837 6838 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6839 6840 ctsio->kern_data_ptr = malloc(sizeof(*data), M_CTL, M_WAITOK | M_ZERO); 6841 data = (struct scsi_read_capacity_data *)ctsio->kern_data_ptr; 6842 ctsio->residual = 0; 6843 ctsio->kern_data_len = sizeof(*data); 6844 ctsio->kern_total_len = sizeof(*data); 6845 ctsio->kern_data_resid = 0; 6846 ctsio->kern_rel_offset = 0; 6847 ctsio->kern_sg_entries = 0; 6848 6849 /* 6850 * If the maximum LBA is greater than 0xfffffffe, the user must 6851 * issue a SERVICE ACTION IN (16) command, with the read capacity 6852 * serivce action set. 6853 */ 6854 if (lun->be_lun->maxlba > 0xfffffffe) 6855 scsi_ulto4b(0xffffffff, data->addr); 6856 else 6857 scsi_ulto4b(lun->be_lun->maxlba, data->addr); 6858 6859 /* 6860 * XXX KDM this may not be 512 bytes... 6861 */ 6862 scsi_ulto4b(lun->be_lun->blocksize, data->length); 6863 6864 ctl_set_success(ctsio); 6865 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6866 ctsio->be_move_done = ctl_config_move_done; 6867 ctl_datamove((union ctl_io *)ctsio); 6868 return (CTL_RETVAL_COMPLETE); 6869} 6870 6871int 6872ctl_read_capacity_16(struct ctl_scsiio *ctsio) 6873{ 6874 struct scsi_read_capacity_16 *cdb; 6875 struct scsi_read_capacity_data_long *data; 6876 struct ctl_lun *lun; 6877 uint64_t lba; 6878 uint32_t alloc_len; 6879 6880 CTL_DEBUG_PRINT(("ctl_read_capacity_16\n")); 6881 6882 cdb = (struct scsi_read_capacity_16 *)ctsio->cdb; 6883 6884 alloc_len = scsi_4btoul(cdb->alloc_len); 6885 lba = scsi_8btou64(cdb->addr); 6886 6887 if ((cdb->reladr & SRC16_PMI) 6888 && (lba != 0)) { 6889 ctl_set_invalid_field(/*ctsio*/ ctsio, 6890 /*sks_valid*/ 1, 6891 /*command*/ 1, 6892 /*field*/ 2, 6893 /*bit_valid*/ 0, 6894 /*bit*/ 0); 6895 ctl_done((union ctl_io *)ctsio); 6896 return (CTL_RETVAL_COMPLETE); 6897 } 6898 6899 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6900 6901 ctsio->kern_data_ptr = malloc(sizeof(*data), M_CTL, M_WAITOK | M_ZERO); 6902 data = (struct scsi_read_capacity_data_long *)ctsio->kern_data_ptr; 6903 6904 if (sizeof(*data) < alloc_len) { 6905 ctsio->residual = alloc_len - sizeof(*data); 6906 ctsio->kern_data_len = sizeof(*data); 6907 ctsio->kern_total_len = sizeof(*data); 6908 } else { 6909 ctsio->residual = 0; 6910 ctsio->kern_data_len = alloc_len; 6911 ctsio->kern_total_len = alloc_len; 6912 } 6913 ctsio->kern_data_resid = 0; 6914 ctsio->kern_rel_offset = 0; 6915 ctsio->kern_sg_entries = 0; 6916 6917 scsi_u64to8b(lun->be_lun->maxlba, data->addr); 6918 /* XXX KDM this may not be 512 bytes... */ 6919 scsi_ulto4b(lun->be_lun->blocksize, data->length); 6920 data->prot_lbppbe = lun->be_lun->pblockexp & SRC16_LBPPBE; 6921 scsi_ulto2b(lun->be_lun->pblockoff & SRC16_LALBA_A, data->lalba_lbp); 6922 if (lun->be_lun->flags & CTL_LUN_FLAG_UNMAP) 6923 data->lalba_lbp[0] |= SRC16_LBPME | SRC16_LBPRZ; 6924 6925 ctl_set_success(ctsio); 6926 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6927 ctsio->be_move_done = ctl_config_move_done; 6928 ctl_datamove((union ctl_io *)ctsio); 6929 return (CTL_RETVAL_COMPLETE); 6930} 6931 6932int 6933ctl_get_lba_status(struct ctl_scsiio *ctsio) 6934{ 6935 struct scsi_get_lba_status *cdb; 6936 struct scsi_get_lba_status_data *data; 6937 struct ctl_lun *lun; 6938 struct ctl_lba_len_flags *lbalen; 6939 uint64_t lba; 6940 uint32_t alloc_len, total_len; 6941 int retval; 6942 6943 CTL_DEBUG_PRINT(("ctl_get_lba_status\n")); 6944 6945 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6946 cdb = (struct scsi_get_lba_status *)ctsio->cdb; 6947 lba = scsi_8btou64(cdb->addr); 6948 alloc_len = scsi_4btoul(cdb->alloc_len); 6949 6950 if (lba > lun->be_lun->maxlba) { 6951 ctl_set_lba_out_of_range(ctsio); 6952 ctl_done((union ctl_io *)ctsio); 6953 return (CTL_RETVAL_COMPLETE); 6954 } 6955 6956 total_len = sizeof(*data) + sizeof(data->descr[0]); 6957 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 6958 data = (struct scsi_get_lba_status_data *)ctsio->kern_data_ptr; 6959 6960 if (total_len < alloc_len) { 6961 ctsio->residual = alloc_len - total_len; 6962 ctsio->kern_data_len = total_len; 6963 ctsio->kern_total_len = total_len; 6964 } else { 6965 ctsio->residual = 0; 6966 ctsio->kern_data_len = alloc_len; 6967 ctsio->kern_total_len = alloc_len; 6968 } 6969 ctsio->kern_data_resid = 0; 6970 ctsio->kern_rel_offset = 0; 6971 ctsio->kern_sg_entries = 0; 6972 6973 /* Fill dummy data in case backend can't tell anything. */ 6974 scsi_ulto4b(4 + sizeof(data->descr[0]), data->length); 6975 scsi_u64to8b(lba, data->descr[0].addr); 6976 scsi_ulto4b(MIN(UINT32_MAX, lun->be_lun->maxlba + 1 - lba), 6977 data->descr[0].length); 6978 data->descr[0].status = 0; /* Mapped or unknown. */ 6979 6980 ctl_set_success(ctsio); 6981 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6982 ctsio->be_move_done = ctl_config_move_done; 6983 6984 lbalen = (struct ctl_lba_len_flags *)&ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 6985 lbalen->lba = lba; 6986 lbalen->len = total_len; 6987 lbalen->flags = 0; 6988 retval = lun->backend->config_read((union ctl_io *)ctsio); 6989 return (CTL_RETVAL_COMPLETE); 6990} 6991 6992int 6993ctl_read_defect(struct ctl_scsiio *ctsio) 6994{ 6995 struct scsi_read_defect_data_10 *ccb10; 6996 struct scsi_read_defect_data_12 *ccb12; 6997 struct scsi_read_defect_data_hdr_10 *data10; 6998 struct scsi_read_defect_data_hdr_12 *data12; 6999 uint32_t alloc_len, data_len; 7000 uint8_t format; 7001 7002 CTL_DEBUG_PRINT(("ctl_read_defect\n")); 7003 7004 if (ctsio->cdb[0] == READ_DEFECT_DATA_10) { 7005 ccb10 = (struct scsi_read_defect_data_10 *)&ctsio->cdb; 7006 format = ccb10->format; 7007 alloc_len = scsi_2btoul(ccb10->alloc_length); 7008 data_len = sizeof(*data10); 7009 } else { 7010 ccb12 = (struct scsi_read_defect_data_12 *)&ctsio->cdb; 7011 format = ccb12->format; 7012 alloc_len = scsi_4btoul(ccb12->alloc_length); 7013 data_len = sizeof(*data12); 7014 } 7015 if (alloc_len == 0) { 7016 ctl_set_success(ctsio); 7017 ctl_done((union ctl_io *)ctsio); 7018 return (CTL_RETVAL_COMPLETE); 7019 } 7020 7021 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 7022 if (data_len < alloc_len) { 7023 ctsio->residual = alloc_len - data_len; 7024 ctsio->kern_data_len = data_len; 7025 ctsio->kern_total_len = data_len; 7026 } else { 7027 ctsio->residual = 0; 7028 ctsio->kern_data_len = alloc_len; 7029 ctsio->kern_total_len = alloc_len; 7030 } 7031 ctsio->kern_data_resid = 0; 7032 ctsio->kern_rel_offset = 0; 7033 ctsio->kern_sg_entries = 0; 7034 7035 if (ctsio->cdb[0] == READ_DEFECT_DATA_10) { 7036 data10 = (struct scsi_read_defect_data_hdr_10 *) 7037 ctsio->kern_data_ptr; 7038 data10->format = format; 7039 scsi_ulto2b(0, data10->length); 7040 } else { 7041 data12 = (struct scsi_read_defect_data_hdr_12 *) 7042 ctsio->kern_data_ptr; 7043 data12->format = format; 7044 scsi_ulto2b(0, data12->generation); 7045 scsi_ulto4b(0, data12->length); 7046 } 7047 7048 ctl_set_success(ctsio); 7049 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7050 ctsio->be_move_done = ctl_config_move_done; 7051 ctl_datamove((union ctl_io *)ctsio); 7052 return (CTL_RETVAL_COMPLETE); 7053} 7054 7055int 7056ctl_report_tagret_port_groups(struct ctl_scsiio *ctsio) 7057{ 7058 struct scsi_maintenance_in *cdb; 7059 int retval; 7060 int alloc_len, ext, total_len = 0, g, pc, pg, gs, os; 7061 int num_target_port_groups, num_target_ports; 7062 struct ctl_lun *lun; 7063 struct ctl_softc *softc; 7064 struct ctl_port *port; 7065 struct scsi_target_group_data *rtg_ptr; 7066 struct scsi_target_group_data_extended *rtg_ext_ptr; 7067 struct scsi_target_port_group_descriptor *tpg_desc; 7068 7069 CTL_DEBUG_PRINT(("ctl_report_tagret_port_groups\n")); 7070 7071 cdb = (struct scsi_maintenance_in *)ctsio->cdb; 7072 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7073 softc = lun->ctl_softc; 7074 7075 retval = CTL_RETVAL_COMPLETE; 7076 7077 switch (cdb->byte2 & STG_PDF_MASK) { 7078 case STG_PDF_LENGTH: 7079 ext = 0; 7080 break; 7081 case STG_PDF_EXTENDED: 7082 ext = 1; 7083 break; 7084 default: 7085 ctl_set_invalid_field(/*ctsio*/ ctsio, 7086 /*sks_valid*/ 1, 7087 /*command*/ 1, 7088 /*field*/ 2, 7089 /*bit_valid*/ 1, 7090 /*bit*/ 5); 7091 ctl_done((union ctl_io *)ctsio); 7092 return(retval); 7093 } 7094 7095 if (softc->is_single) 7096 num_target_port_groups = 1; 7097 else 7098 num_target_port_groups = NUM_TARGET_PORT_GROUPS; 7099 num_target_ports = 0; 7100 mtx_lock(&softc->ctl_lock); 7101 STAILQ_FOREACH(port, &softc->port_list, links) { 7102 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 7103 continue; 7104 if (ctl_lun_map_to_port(port, lun->lun) >= CTL_MAX_LUNS) 7105 continue; 7106 num_target_ports++; 7107 } 7108 mtx_unlock(&softc->ctl_lock); 7109 7110 if (ext) 7111 total_len = sizeof(struct scsi_target_group_data_extended); 7112 else 7113 total_len = sizeof(struct scsi_target_group_data); 7114 total_len += sizeof(struct scsi_target_port_group_descriptor) * 7115 num_target_port_groups + 7116 sizeof(struct scsi_target_port_descriptor) * num_target_ports; 7117 7118 alloc_len = scsi_4btoul(cdb->length); 7119 7120 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7121 7122 ctsio->kern_sg_entries = 0; 7123 7124 if (total_len < alloc_len) { 7125 ctsio->residual = alloc_len - total_len; 7126 ctsio->kern_data_len = total_len; 7127 ctsio->kern_total_len = total_len; 7128 } else { 7129 ctsio->residual = 0; 7130 ctsio->kern_data_len = alloc_len; 7131 ctsio->kern_total_len = alloc_len; 7132 } 7133 ctsio->kern_data_resid = 0; 7134 ctsio->kern_rel_offset = 0; 7135 7136 if (ext) { 7137 rtg_ext_ptr = (struct scsi_target_group_data_extended *) 7138 ctsio->kern_data_ptr; 7139 scsi_ulto4b(total_len - 4, rtg_ext_ptr->length); 7140 rtg_ext_ptr->format_type = 0x10; 7141 rtg_ext_ptr->implicit_transition_time = 0; 7142 tpg_desc = &rtg_ext_ptr->groups[0]; 7143 } else { 7144 rtg_ptr = (struct scsi_target_group_data *) 7145 ctsio->kern_data_ptr; 7146 scsi_ulto4b(total_len - 4, rtg_ptr->length); 7147 tpg_desc = &rtg_ptr->groups[0]; 7148 } 7149 7150 mtx_lock(&softc->ctl_lock); 7151 pg = softc->port_min / softc->port_cnt; 7152 if (softc->ha_link == CTL_HA_LINK_OFFLINE) 7153 gs = TPG_ASYMMETRIC_ACCESS_UNAVAILABLE; 7154 else if (softc->ha_link == CTL_HA_LINK_UNKNOWN) 7155 gs = TPG_ASYMMETRIC_ACCESS_TRANSITIONING; 7156 else if (softc->ha_mode == CTL_HA_MODE_ACT_STBY) 7157 gs = TPG_ASYMMETRIC_ACCESS_STANDBY; 7158 else 7159 gs = TPG_ASYMMETRIC_ACCESS_NONOPTIMIZED; 7160 if (lun->flags & CTL_LUN_PRIMARY_SC) { 7161 os = gs; 7162 gs = TPG_ASYMMETRIC_ACCESS_OPTIMIZED; 7163 } else 7164 os = TPG_ASYMMETRIC_ACCESS_OPTIMIZED; 7165 for (g = 0; g < num_target_port_groups; g++) { 7166 tpg_desc->pref_state = (g == pg) ? gs : os; 7167 tpg_desc->support = TPG_AO_SUP | TPG_AN_SUP | TPG_S_SUP | 7168 TPG_U_SUP | TPG_T_SUP; 7169 scsi_ulto2b(g + 1, tpg_desc->target_port_group); 7170 tpg_desc->status = TPG_IMPLICIT; 7171 pc = 0; 7172 STAILQ_FOREACH(port, &softc->port_list, links) { 7173 if (port->targ_port < g * softc->port_cnt || 7174 port->targ_port >= (g + 1) * softc->port_cnt) 7175 continue; 7176 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 7177 continue; 7178 if (ctl_lun_map_to_port(port, lun->lun) >= CTL_MAX_LUNS) 7179 continue; 7180 scsi_ulto2b(port->targ_port, tpg_desc->descriptors[pc]. 7181 relative_target_port_identifier); 7182 pc++; 7183 } 7184 tpg_desc->target_port_count = pc; 7185 tpg_desc = (struct scsi_target_port_group_descriptor *) 7186 &tpg_desc->descriptors[pc]; 7187 } 7188 mtx_unlock(&softc->ctl_lock); 7189 7190 ctl_set_success(ctsio); 7191 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7192 ctsio->be_move_done = ctl_config_move_done; 7193 ctl_datamove((union ctl_io *)ctsio); 7194 return(retval); 7195} 7196 7197int 7198ctl_report_supported_opcodes(struct ctl_scsiio *ctsio) 7199{ 7200 struct ctl_lun *lun; 7201 struct scsi_report_supported_opcodes *cdb; 7202 const struct ctl_cmd_entry *entry, *sentry; 7203 struct scsi_report_supported_opcodes_all *all; 7204 struct scsi_report_supported_opcodes_descr *descr; 7205 struct scsi_report_supported_opcodes_one *one; 7206 int retval; 7207 int alloc_len, total_len; 7208 int opcode, service_action, i, j, num; 7209 7210 CTL_DEBUG_PRINT(("ctl_report_supported_opcodes\n")); 7211 7212 cdb = (struct scsi_report_supported_opcodes *)ctsio->cdb; 7213 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7214 7215 retval = CTL_RETVAL_COMPLETE; 7216 7217 opcode = cdb->requested_opcode; 7218 service_action = scsi_2btoul(cdb->requested_service_action); 7219 switch (cdb->options & RSO_OPTIONS_MASK) { 7220 case RSO_OPTIONS_ALL: 7221 num = 0; 7222 for (i = 0; i < 256; i++) { 7223 entry = &ctl_cmd_table[i]; 7224 if (entry->flags & CTL_CMD_FLAG_SA5) { 7225 for (j = 0; j < 32; j++) { 7226 sentry = &((const struct ctl_cmd_entry *) 7227 entry->execute)[j]; 7228 if (ctl_cmd_applicable( 7229 lun->be_lun->lun_type, sentry)) 7230 num++; 7231 } 7232 } else { 7233 if (ctl_cmd_applicable(lun->be_lun->lun_type, 7234 entry)) 7235 num++; 7236 } 7237 } 7238 total_len = sizeof(struct scsi_report_supported_opcodes_all) + 7239 num * sizeof(struct scsi_report_supported_opcodes_descr); 7240 break; 7241 case RSO_OPTIONS_OC: 7242 if (ctl_cmd_table[opcode].flags & CTL_CMD_FLAG_SA5) { 7243 ctl_set_invalid_field(/*ctsio*/ ctsio, 7244 /*sks_valid*/ 1, 7245 /*command*/ 1, 7246 /*field*/ 2, 7247 /*bit_valid*/ 1, 7248 /*bit*/ 2); 7249 ctl_done((union ctl_io *)ctsio); 7250 return (CTL_RETVAL_COMPLETE); 7251 } 7252 total_len = sizeof(struct scsi_report_supported_opcodes_one) + 32; 7253 break; 7254 case RSO_OPTIONS_OC_SA: 7255 if ((ctl_cmd_table[opcode].flags & CTL_CMD_FLAG_SA5) == 0 || 7256 service_action >= 32) { 7257 ctl_set_invalid_field(/*ctsio*/ ctsio, 7258 /*sks_valid*/ 1, 7259 /*command*/ 1, 7260 /*field*/ 2, 7261 /*bit_valid*/ 1, 7262 /*bit*/ 2); 7263 ctl_done((union ctl_io *)ctsio); 7264 return (CTL_RETVAL_COMPLETE); 7265 } 7266 total_len = sizeof(struct scsi_report_supported_opcodes_one) + 32; 7267 break; 7268 default: 7269 ctl_set_invalid_field(/*ctsio*/ ctsio, 7270 /*sks_valid*/ 1, 7271 /*command*/ 1, 7272 /*field*/ 2, 7273 /*bit_valid*/ 1, 7274 /*bit*/ 2); 7275 ctl_done((union ctl_io *)ctsio); 7276 return (CTL_RETVAL_COMPLETE); 7277 } 7278 7279 alloc_len = scsi_4btoul(cdb->length); 7280 7281 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7282 7283 ctsio->kern_sg_entries = 0; 7284 7285 if (total_len < alloc_len) { 7286 ctsio->residual = alloc_len - total_len; 7287 ctsio->kern_data_len = total_len; 7288 ctsio->kern_total_len = total_len; 7289 } else { 7290 ctsio->residual = 0; 7291 ctsio->kern_data_len = alloc_len; 7292 ctsio->kern_total_len = alloc_len; 7293 } 7294 ctsio->kern_data_resid = 0; 7295 ctsio->kern_rel_offset = 0; 7296 7297 switch (cdb->options & RSO_OPTIONS_MASK) { 7298 case RSO_OPTIONS_ALL: 7299 all = (struct scsi_report_supported_opcodes_all *) 7300 ctsio->kern_data_ptr; 7301 num = 0; 7302 for (i = 0; i < 256; i++) { 7303 entry = &ctl_cmd_table[i]; 7304 if (entry->flags & CTL_CMD_FLAG_SA5) { 7305 for (j = 0; j < 32; j++) { 7306 sentry = &((const struct ctl_cmd_entry *) 7307 entry->execute)[j]; 7308 if (!ctl_cmd_applicable( 7309 lun->be_lun->lun_type, sentry)) 7310 continue; 7311 descr = &all->descr[num++]; 7312 descr->opcode = i; 7313 scsi_ulto2b(j, descr->service_action); 7314 descr->flags = RSO_SERVACTV; 7315 scsi_ulto2b(sentry->length, 7316 descr->cdb_length); 7317 } 7318 } else { 7319 if (!ctl_cmd_applicable(lun->be_lun->lun_type, 7320 entry)) 7321 continue; 7322 descr = &all->descr[num++]; 7323 descr->opcode = i; 7324 scsi_ulto2b(0, descr->service_action); 7325 descr->flags = 0; 7326 scsi_ulto2b(entry->length, descr->cdb_length); 7327 } 7328 } 7329 scsi_ulto4b( 7330 num * sizeof(struct scsi_report_supported_opcodes_descr), 7331 all->length); 7332 break; 7333 case RSO_OPTIONS_OC: 7334 one = (struct scsi_report_supported_opcodes_one *) 7335 ctsio->kern_data_ptr; 7336 entry = &ctl_cmd_table[opcode]; 7337 goto fill_one; 7338 case RSO_OPTIONS_OC_SA: 7339 one = (struct scsi_report_supported_opcodes_one *) 7340 ctsio->kern_data_ptr; 7341 entry = &ctl_cmd_table[opcode]; 7342 entry = &((const struct ctl_cmd_entry *) 7343 entry->execute)[service_action]; 7344fill_one: 7345 if (ctl_cmd_applicable(lun->be_lun->lun_type, entry)) { 7346 one->support = 3; 7347 scsi_ulto2b(entry->length, one->cdb_length); 7348 one->cdb_usage[0] = opcode; 7349 memcpy(&one->cdb_usage[1], entry->usage, 7350 entry->length - 1); 7351 } else 7352 one->support = 1; 7353 break; 7354 } 7355 7356 ctl_set_success(ctsio); 7357 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7358 ctsio->be_move_done = ctl_config_move_done; 7359 ctl_datamove((union ctl_io *)ctsio); 7360 return(retval); 7361} 7362 7363int 7364ctl_report_supported_tmf(struct ctl_scsiio *ctsio) 7365{ 7366 struct scsi_report_supported_tmf *cdb; 7367 struct scsi_report_supported_tmf_data *data; 7368 int retval; 7369 int alloc_len, total_len; 7370 7371 CTL_DEBUG_PRINT(("ctl_report_supported_tmf\n")); 7372 7373 cdb = (struct scsi_report_supported_tmf *)ctsio->cdb; 7374 7375 retval = CTL_RETVAL_COMPLETE; 7376 7377 total_len = sizeof(struct scsi_report_supported_tmf_data); 7378 alloc_len = scsi_4btoul(cdb->length); 7379 7380 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7381 7382 ctsio->kern_sg_entries = 0; 7383 7384 if (total_len < alloc_len) { 7385 ctsio->residual = alloc_len - total_len; 7386 ctsio->kern_data_len = total_len; 7387 ctsio->kern_total_len = total_len; 7388 } else { 7389 ctsio->residual = 0; 7390 ctsio->kern_data_len = alloc_len; 7391 ctsio->kern_total_len = alloc_len; 7392 } 7393 ctsio->kern_data_resid = 0; 7394 ctsio->kern_rel_offset = 0; 7395 7396 data = (struct scsi_report_supported_tmf_data *)ctsio->kern_data_ptr; 7397 data->byte1 |= RST_ATS | RST_ATSS | RST_CTSS | RST_LURS | RST_QTS | 7398 RST_TRS; 7399 data->byte2 |= RST_QAES | RST_QTSS | RST_ITNRS; 7400 7401 ctl_set_success(ctsio); 7402 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7403 ctsio->be_move_done = ctl_config_move_done; 7404 ctl_datamove((union ctl_io *)ctsio); 7405 return (retval); 7406} 7407 7408int 7409ctl_report_timestamp(struct ctl_scsiio *ctsio) 7410{ 7411 struct scsi_report_timestamp *cdb; 7412 struct scsi_report_timestamp_data *data; 7413 struct timeval tv; 7414 int64_t timestamp; 7415 int retval; 7416 int alloc_len, total_len; 7417 7418 CTL_DEBUG_PRINT(("ctl_report_timestamp\n")); 7419 7420 cdb = (struct scsi_report_timestamp *)ctsio->cdb; 7421 7422 retval = CTL_RETVAL_COMPLETE; 7423 7424 total_len = sizeof(struct scsi_report_timestamp_data); 7425 alloc_len = scsi_4btoul(cdb->length); 7426 7427 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7428 7429 ctsio->kern_sg_entries = 0; 7430 7431 if (total_len < alloc_len) { 7432 ctsio->residual = alloc_len - total_len; 7433 ctsio->kern_data_len = total_len; 7434 ctsio->kern_total_len = total_len; 7435 } else { 7436 ctsio->residual = 0; 7437 ctsio->kern_data_len = alloc_len; 7438 ctsio->kern_total_len = alloc_len; 7439 } 7440 ctsio->kern_data_resid = 0; 7441 ctsio->kern_rel_offset = 0; 7442 7443 data = (struct scsi_report_timestamp_data *)ctsio->kern_data_ptr; 7444 scsi_ulto2b(sizeof(*data) - 2, data->length); 7445 data->origin = RTS_ORIG_OUTSIDE; 7446 getmicrotime(&tv); 7447 timestamp = (int64_t)tv.tv_sec * 1000 + tv.tv_usec / 1000; 7448 scsi_ulto4b(timestamp >> 16, data->timestamp); 7449 scsi_ulto2b(timestamp & 0xffff, &data->timestamp[4]); 7450 7451 ctl_set_success(ctsio); 7452 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7453 ctsio->be_move_done = ctl_config_move_done; 7454 ctl_datamove((union ctl_io *)ctsio); 7455 return (retval); 7456} 7457 7458int 7459ctl_persistent_reserve_in(struct ctl_scsiio *ctsio) 7460{ 7461 struct scsi_per_res_in *cdb; 7462 int alloc_len, total_len = 0; 7463 /* struct scsi_per_res_in_rsrv in_data; */ 7464 struct ctl_lun *lun; 7465 struct ctl_softc *softc; 7466 uint64_t key; 7467 7468 CTL_DEBUG_PRINT(("ctl_persistent_reserve_in\n")); 7469 7470 cdb = (struct scsi_per_res_in *)ctsio->cdb; 7471 7472 alloc_len = scsi_2btoul(cdb->length); 7473 7474 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7475 softc = lun->ctl_softc; 7476 7477retry: 7478 mtx_lock(&lun->lun_lock); 7479 switch (cdb->action) { 7480 case SPRI_RK: /* read keys */ 7481 total_len = sizeof(struct scsi_per_res_in_keys) + 7482 lun->pr_key_count * 7483 sizeof(struct scsi_per_res_key); 7484 break; 7485 case SPRI_RR: /* read reservation */ 7486 if (lun->flags & CTL_LUN_PR_RESERVED) 7487 total_len = sizeof(struct scsi_per_res_in_rsrv); 7488 else 7489 total_len = sizeof(struct scsi_per_res_in_header); 7490 break; 7491 case SPRI_RC: /* report capabilities */ 7492 total_len = sizeof(struct scsi_per_res_cap); 7493 break; 7494 case SPRI_RS: /* read full status */ 7495 total_len = sizeof(struct scsi_per_res_in_header) + 7496 (sizeof(struct scsi_per_res_in_full_desc) + 256) * 7497 lun->pr_key_count; 7498 break; 7499 default: 7500 panic("Invalid PR type %x", cdb->action); 7501 } 7502 mtx_unlock(&lun->lun_lock); 7503 7504 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7505 7506 if (total_len < alloc_len) { 7507 ctsio->residual = alloc_len - total_len; 7508 ctsio->kern_data_len = total_len; 7509 ctsio->kern_total_len = total_len; 7510 } else { 7511 ctsio->residual = 0; 7512 ctsio->kern_data_len = alloc_len; 7513 ctsio->kern_total_len = alloc_len; 7514 } 7515 7516 ctsio->kern_data_resid = 0; 7517 ctsio->kern_rel_offset = 0; 7518 ctsio->kern_sg_entries = 0; 7519 7520 mtx_lock(&lun->lun_lock); 7521 switch (cdb->action) { 7522 case SPRI_RK: { // read keys 7523 struct scsi_per_res_in_keys *res_keys; 7524 int i, key_count; 7525 7526 res_keys = (struct scsi_per_res_in_keys*)ctsio->kern_data_ptr; 7527 7528 /* 7529 * We had to drop the lock to allocate our buffer, which 7530 * leaves time for someone to come in with another 7531 * persistent reservation. (That is unlikely, though, 7532 * since this should be the only persistent reservation 7533 * command active right now.) 7534 */ 7535 if (total_len != (sizeof(struct scsi_per_res_in_keys) + 7536 (lun->pr_key_count * 7537 sizeof(struct scsi_per_res_key)))){ 7538 mtx_unlock(&lun->lun_lock); 7539 free(ctsio->kern_data_ptr, M_CTL); 7540 printf("%s: reservation length changed, retrying\n", 7541 __func__); 7542 goto retry; 7543 } 7544 7545 scsi_ulto4b(lun->PRGeneration, res_keys->header.generation); 7546 7547 scsi_ulto4b(sizeof(struct scsi_per_res_key) * 7548 lun->pr_key_count, res_keys->header.length); 7549 7550 for (i = 0, key_count = 0; i < CTL_MAX_INITIATORS; i++) { 7551 if ((key = ctl_get_prkey(lun, i)) == 0) 7552 continue; 7553 7554 /* 7555 * We used lun->pr_key_count to calculate the 7556 * size to allocate. If it turns out the number of 7557 * initiators with the registered flag set is 7558 * larger than that (i.e. they haven't been kept in 7559 * sync), we've got a problem. 7560 */ 7561 if (key_count >= lun->pr_key_count) { 7562 key_count++; 7563 continue; 7564 } 7565 scsi_u64to8b(key, res_keys->keys[key_count].key); 7566 key_count++; 7567 } 7568 break; 7569 } 7570 case SPRI_RR: { // read reservation 7571 struct scsi_per_res_in_rsrv *res; 7572 int tmp_len, header_only; 7573 7574 res = (struct scsi_per_res_in_rsrv *)ctsio->kern_data_ptr; 7575 7576 scsi_ulto4b(lun->PRGeneration, res->header.generation); 7577 7578 if (lun->flags & CTL_LUN_PR_RESERVED) 7579 { 7580 tmp_len = sizeof(struct scsi_per_res_in_rsrv); 7581 scsi_ulto4b(sizeof(struct scsi_per_res_in_rsrv_data), 7582 res->header.length); 7583 header_only = 0; 7584 } else { 7585 tmp_len = sizeof(struct scsi_per_res_in_header); 7586 scsi_ulto4b(0, res->header.length); 7587 header_only = 1; 7588 } 7589 7590 /* 7591 * We had to drop the lock to allocate our buffer, which 7592 * leaves time for someone to come in with another 7593 * persistent reservation. (That is unlikely, though, 7594 * since this should be the only persistent reservation 7595 * command active right now.) 7596 */ 7597 if (tmp_len != total_len) { 7598 mtx_unlock(&lun->lun_lock); 7599 free(ctsio->kern_data_ptr, M_CTL); 7600 printf("%s: reservation status changed, retrying\n", 7601 __func__); 7602 goto retry; 7603 } 7604 7605 /* 7606 * No reservation held, so we're done. 7607 */ 7608 if (header_only != 0) 7609 break; 7610 7611 /* 7612 * If the registration is an All Registrants type, the key 7613 * is 0, since it doesn't really matter. 7614 */ 7615 if (lun->pr_res_idx != CTL_PR_ALL_REGISTRANTS) { 7616 scsi_u64to8b(ctl_get_prkey(lun, lun->pr_res_idx), 7617 res->data.reservation); 7618 } 7619 res->data.scopetype = lun->res_type; 7620 break; 7621 } 7622 case SPRI_RC: //report capabilities 7623 { 7624 struct scsi_per_res_cap *res_cap; 7625 uint16_t type_mask; 7626 7627 res_cap = (struct scsi_per_res_cap *)ctsio->kern_data_ptr; 7628 scsi_ulto2b(sizeof(*res_cap), res_cap->length); 7629 res_cap->flags2 |= SPRI_TMV | SPRI_ALLOW_5; 7630 type_mask = SPRI_TM_WR_EX_AR | 7631 SPRI_TM_EX_AC_RO | 7632 SPRI_TM_WR_EX_RO | 7633 SPRI_TM_EX_AC | 7634 SPRI_TM_WR_EX | 7635 SPRI_TM_EX_AC_AR; 7636 scsi_ulto2b(type_mask, res_cap->type_mask); 7637 break; 7638 } 7639 case SPRI_RS: { // read full status 7640 struct scsi_per_res_in_full *res_status; 7641 struct scsi_per_res_in_full_desc *res_desc; 7642 struct ctl_port *port; 7643 int i, len; 7644 7645 res_status = (struct scsi_per_res_in_full*)ctsio->kern_data_ptr; 7646 7647 /* 7648 * We had to drop the lock to allocate our buffer, which 7649 * leaves time for someone to come in with another 7650 * persistent reservation. (That is unlikely, though, 7651 * since this should be the only persistent reservation 7652 * command active right now.) 7653 */ 7654 if (total_len < (sizeof(struct scsi_per_res_in_header) + 7655 (sizeof(struct scsi_per_res_in_full_desc) + 256) * 7656 lun->pr_key_count)){ 7657 mtx_unlock(&lun->lun_lock); 7658 free(ctsio->kern_data_ptr, M_CTL); 7659 printf("%s: reservation length changed, retrying\n", 7660 __func__); 7661 goto retry; 7662 } 7663 7664 scsi_ulto4b(lun->PRGeneration, res_status->header.generation); 7665 7666 res_desc = &res_status->desc[0]; 7667 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 7668 if ((key = ctl_get_prkey(lun, i)) == 0) 7669 continue; 7670 7671 scsi_u64to8b(key, res_desc->res_key.key); 7672 if ((lun->flags & CTL_LUN_PR_RESERVED) && 7673 (lun->pr_res_idx == i || 7674 lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS)) { 7675 res_desc->flags = SPRI_FULL_R_HOLDER; 7676 res_desc->scopetype = lun->res_type; 7677 } 7678 scsi_ulto2b(i / CTL_MAX_INIT_PER_PORT, 7679 res_desc->rel_trgt_port_id); 7680 len = 0; 7681 port = softc->ctl_ports[i / CTL_MAX_INIT_PER_PORT]; 7682 if (port != NULL) 7683 len = ctl_create_iid(port, 7684 i % CTL_MAX_INIT_PER_PORT, 7685 res_desc->transport_id); 7686 scsi_ulto4b(len, res_desc->additional_length); 7687 res_desc = (struct scsi_per_res_in_full_desc *) 7688 &res_desc->transport_id[len]; 7689 } 7690 scsi_ulto4b((uint8_t *)res_desc - (uint8_t *)&res_status->desc[0], 7691 res_status->header.length); 7692 break; 7693 } 7694 default: 7695 /* 7696 * This is a bug, because we just checked for this above, 7697 * and should have returned an error. 7698 */ 7699 panic("Invalid PR type %x", cdb->action); 7700 break; /* NOTREACHED */ 7701 } 7702 mtx_unlock(&lun->lun_lock); 7703 7704 ctl_set_success(ctsio); 7705 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7706 ctsio->be_move_done = ctl_config_move_done; 7707 ctl_datamove((union ctl_io *)ctsio); 7708 return (CTL_RETVAL_COMPLETE); 7709} 7710 7711/* 7712 * Returns 0 if ctl_persistent_reserve_out() should continue, non-zero if 7713 * it should return. 7714 */ 7715static int 7716ctl_pro_preempt(struct ctl_softc *softc, struct ctl_lun *lun, uint64_t res_key, 7717 uint64_t sa_res_key, uint8_t type, uint32_t residx, 7718 struct ctl_scsiio *ctsio, struct scsi_per_res_out *cdb, 7719 struct scsi_per_res_out_parms* param) 7720{ 7721 union ctl_ha_msg persis_io; 7722 int i; 7723 7724 mtx_lock(&lun->lun_lock); 7725 if (sa_res_key == 0) { 7726 if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS) { 7727 /* validate scope and type */ 7728 if ((cdb->scope_type & SPR_SCOPE_MASK) != 7729 SPR_LU_SCOPE) { 7730 mtx_unlock(&lun->lun_lock); 7731 ctl_set_invalid_field(/*ctsio*/ ctsio, 7732 /*sks_valid*/ 1, 7733 /*command*/ 1, 7734 /*field*/ 2, 7735 /*bit_valid*/ 1, 7736 /*bit*/ 4); 7737 ctl_done((union ctl_io *)ctsio); 7738 return (1); 7739 } 7740 7741 if (type>8 || type==2 || type==4 || type==0) { 7742 mtx_unlock(&lun->lun_lock); 7743 ctl_set_invalid_field(/*ctsio*/ ctsio, 7744 /*sks_valid*/ 1, 7745 /*command*/ 1, 7746 /*field*/ 2, 7747 /*bit_valid*/ 1, 7748 /*bit*/ 0); 7749 ctl_done((union ctl_io *)ctsio); 7750 return (1); 7751 } 7752 7753 /* 7754 * Unregister everybody else and build UA for 7755 * them 7756 */ 7757 for(i = 0; i < CTL_MAX_INITIATORS; i++) { 7758 if (i == residx || ctl_get_prkey(lun, i) == 0) 7759 continue; 7760 7761 ctl_clr_prkey(lun, i); 7762 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 7763 } 7764 lun->pr_key_count = 1; 7765 lun->res_type = type; 7766 if (lun->res_type != SPR_TYPE_WR_EX_AR 7767 && lun->res_type != SPR_TYPE_EX_AC_AR) 7768 lun->pr_res_idx = residx; 7769 lun->PRGeneration++; 7770 mtx_unlock(&lun->lun_lock); 7771 7772 /* send msg to other side */ 7773 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 7774 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 7775 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 7776 persis_io.pr.pr_info.residx = lun->pr_res_idx; 7777 persis_io.pr.pr_info.res_type = type; 7778 memcpy(persis_io.pr.pr_info.sa_res_key, 7779 param->serv_act_res_key, 7780 sizeof(param->serv_act_res_key)); 7781 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 7782 sizeof(persis_io.pr), M_WAITOK); 7783 } else { 7784 /* not all registrants */ 7785 mtx_unlock(&lun->lun_lock); 7786 free(ctsio->kern_data_ptr, M_CTL); 7787 ctl_set_invalid_field(ctsio, 7788 /*sks_valid*/ 1, 7789 /*command*/ 0, 7790 /*field*/ 8, 7791 /*bit_valid*/ 0, 7792 /*bit*/ 0); 7793 ctl_done((union ctl_io *)ctsio); 7794 return (1); 7795 } 7796 } else if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS 7797 || !(lun->flags & CTL_LUN_PR_RESERVED)) { 7798 int found = 0; 7799 7800 if (res_key == sa_res_key) { 7801 /* special case */ 7802 /* 7803 * The spec implies this is not good but doesn't 7804 * say what to do. There are two choices either 7805 * generate a res conflict or check condition 7806 * with illegal field in parameter data. Since 7807 * that is what is done when the sa_res_key is 7808 * zero I'll take that approach since this has 7809 * to do with the sa_res_key. 7810 */ 7811 mtx_unlock(&lun->lun_lock); 7812 free(ctsio->kern_data_ptr, M_CTL); 7813 ctl_set_invalid_field(ctsio, 7814 /*sks_valid*/ 1, 7815 /*command*/ 0, 7816 /*field*/ 8, 7817 /*bit_valid*/ 0, 7818 /*bit*/ 0); 7819 ctl_done((union ctl_io *)ctsio); 7820 return (1); 7821 } 7822 7823 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 7824 if (ctl_get_prkey(lun, i) != sa_res_key) 7825 continue; 7826 7827 found = 1; 7828 ctl_clr_prkey(lun, i); 7829 lun->pr_key_count--; 7830 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 7831 } 7832 if (!found) { 7833 mtx_unlock(&lun->lun_lock); 7834 free(ctsio->kern_data_ptr, M_CTL); 7835 ctl_set_reservation_conflict(ctsio); 7836 ctl_done((union ctl_io *)ctsio); 7837 return (CTL_RETVAL_COMPLETE); 7838 } 7839 lun->PRGeneration++; 7840 mtx_unlock(&lun->lun_lock); 7841 7842 /* send msg to other side */ 7843 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 7844 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 7845 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 7846 persis_io.pr.pr_info.residx = lun->pr_res_idx; 7847 persis_io.pr.pr_info.res_type = type; 7848 memcpy(persis_io.pr.pr_info.sa_res_key, 7849 param->serv_act_res_key, 7850 sizeof(param->serv_act_res_key)); 7851 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 7852 sizeof(persis_io.pr), M_WAITOK); 7853 } else { 7854 /* Reserved but not all registrants */ 7855 /* sa_res_key is res holder */ 7856 if (sa_res_key == ctl_get_prkey(lun, lun->pr_res_idx)) { 7857 /* validate scope and type */ 7858 if ((cdb->scope_type & SPR_SCOPE_MASK) != 7859 SPR_LU_SCOPE) { 7860 mtx_unlock(&lun->lun_lock); 7861 ctl_set_invalid_field(/*ctsio*/ ctsio, 7862 /*sks_valid*/ 1, 7863 /*command*/ 1, 7864 /*field*/ 2, 7865 /*bit_valid*/ 1, 7866 /*bit*/ 4); 7867 ctl_done((union ctl_io *)ctsio); 7868 return (1); 7869 } 7870 7871 if (type>8 || type==2 || type==4 || type==0) { 7872 mtx_unlock(&lun->lun_lock); 7873 ctl_set_invalid_field(/*ctsio*/ ctsio, 7874 /*sks_valid*/ 1, 7875 /*command*/ 1, 7876 /*field*/ 2, 7877 /*bit_valid*/ 1, 7878 /*bit*/ 0); 7879 ctl_done((union ctl_io *)ctsio); 7880 return (1); 7881 } 7882 7883 /* 7884 * Do the following: 7885 * if sa_res_key != res_key remove all 7886 * registrants w/sa_res_key and generate UA 7887 * for these registrants(Registrations 7888 * Preempted) if it wasn't an exclusive 7889 * reservation generate UA(Reservations 7890 * Preempted) for all other registered nexuses 7891 * if the type has changed. Establish the new 7892 * reservation and holder. If res_key and 7893 * sa_res_key are the same do the above 7894 * except don't unregister the res holder. 7895 */ 7896 7897 for(i = 0; i < CTL_MAX_INITIATORS; i++) { 7898 if (i == residx || ctl_get_prkey(lun, i) == 0) 7899 continue; 7900 7901 if (sa_res_key == ctl_get_prkey(lun, i)) { 7902 ctl_clr_prkey(lun, i); 7903 lun->pr_key_count--; 7904 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 7905 } else if (type != lun->res_type 7906 && (lun->res_type == SPR_TYPE_WR_EX_RO 7907 || lun->res_type ==SPR_TYPE_EX_AC_RO)){ 7908 ctl_est_ua(lun, i, CTL_UA_RES_RELEASE); 7909 } 7910 } 7911 lun->res_type = type; 7912 if (lun->res_type != SPR_TYPE_WR_EX_AR 7913 && lun->res_type != SPR_TYPE_EX_AC_AR) 7914 lun->pr_res_idx = residx; 7915 else 7916 lun->pr_res_idx = CTL_PR_ALL_REGISTRANTS; 7917 lun->PRGeneration++; 7918 mtx_unlock(&lun->lun_lock); 7919 7920 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 7921 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 7922 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 7923 persis_io.pr.pr_info.residx = lun->pr_res_idx; 7924 persis_io.pr.pr_info.res_type = type; 7925 memcpy(persis_io.pr.pr_info.sa_res_key, 7926 param->serv_act_res_key, 7927 sizeof(param->serv_act_res_key)); 7928 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 7929 sizeof(persis_io.pr), M_WAITOK); 7930 } else { 7931 /* 7932 * sa_res_key is not the res holder just 7933 * remove registrants 7934 */ 7935 int found=0; 7936 7937 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 7938 if (sa_res_key != ctl_get_prkey(lun, i)) 7939 continue; 7940 7941 found = 1; 7942 ctl_clr_prkey(lun, i); 7943 lun->pr_key_count--; 7944 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 7945 } 7946 7947 if (!found) { 7948 mtx_unlock(&lun->lun_lock); 7949 free(ctsio->kern_data_ptr, M_CTL); 7950 ctl_set_reservation_conflict(ctsio); 7951 ctl_done((union ctl_io *)ctsio); 7952 return (1); 7953 } 7954 lun->PRGeneration++; 7955 mtx_unlock(&lun->lun_lock); 7956 7957 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 7958 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 7959 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 7960 persis_io.pr.pr_info.residx = lun->pr_res_idx; 7961 persis_io.pr.pr_info.res_type = type; 7962 memcpy(persis_io.pr.pr_info.sa_res_key, 7963 param->serv_act_res_key, 7964 sizeof(param->serv_act_res_key)); 7965 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 7966 sizeof(persis_io.pr), M_WAITOK); 7967 } 7968 } 7969 return (0); 7970} 7971 7972static void 7973ctl_pro_preempt_other(struct ctl_lun *lun, union ctl_ha_msg *msg) 7974{ 7975 uint64_t sa_res_key; 7976 int i; 7977 7978 sa_res_key = scsi_8btou64(msg->pr.pr_info.sa_res_key); 7979 7980 if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS 7981 || lun->pr_res_idx == CTL_PR_NO_RESERVATION 7982 || sa_res_key != ctl_get_prkey(lun, lun->pr_res_idx)) { 7983 if (sa_res_key == 0) { 7984 /* 7985 * Unregister everybody else and build UA for 7986 * them 7987 */ 7988 for(i = 0; i < CTL_MAX_INITIATORS; i++) { 7989 if (i == msg->pr.pr_info.residx || 7990 ctl_get_prkey(lun, i) == 0) 7991 continue; 7992 7993 ctl_clr_prkey(lun, i); 7994 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 7995 } 7996 7997 lun->pr_key_count = 1; 7998 lun->res_type = msg->pr.pr_info.res_type; 7999 if (lun->res_type != SPR_TYPE_WR_EX_AR 8000 && lun->res_type != SPR_TYPE_EX_AC_AR) 8001 lun->pr_res_idx = msg->pr.pr_info.residx; 8002 } else { 8003 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 8004 if (sa_res_key == ctl_get_prkey(lun, i)) 8005 continue; 8006 8007 ctl_clr_prkey(lun, i); 8008 lun->pr_key_count--; 8009 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 8010 } 8011 } 8012 } else { 8013 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 8014 if (i == msg->pr.pr_info.residx || 8015 ctl_get_prkey(lun, i) == 0) 8016 continue; 8017 8018 if (sa_res_key == ctl_get_prkey(lun, i)) { 8019 ctl_clr_prkey(lun, i); 8020 lun->pr_key_count--; 8021 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 8022 } else if (msg->pr.pr_info.res_type != lun->res_type 8023 && (lun->res_type == SPR_TYPE_WR_EX_RO 8024 || lun->res_type == SPR_TYPE_EX_AC_RO)) { 8025 ctl_est_ua(lun, i, CTL_UA_RES_RELEASE); 8026 } 8027 } 8028 lun->res_type = msg->pr.pr_info.res_type; 8029 if (lun->res_type != SPR_TYPE_WR_EX_AR 8030 && lun->res_type != SPR_TYPE_EX_AC_AR) 8031 lun->pr_res_idx = msg->pr.pr_info.residx; 8032 else 8033 lun->pr_res_idx = CTL_PR_ALL_REGISTRANTS; 8034 } 8035 lun->PRGeneration++; 8036 8037} 8038 8039 8040int 8041ctl_persistent_reserve_out(struct ctl_scsiio *ctsio) 8042{ 8043 int retval; 8044 u_int32_t param_len; 8045 struct scsi_per_res_out *cdb; 8046 struct ctl_lun *lun; 8047 struct scsi_per_res_out_parms* param; 8048 struct ctl_softc *softc; 8049 uint32_t residx; 8050 uint64_t res_key, sa_res_key, key; 8051 uint8_t type; 8052 union ctl_ha_msg persis_io; 8053 int i; 8054 8055 CTL_DEBUG_PRINT(("ctl_persistent_reserve_out\n")); 8056 8057 retval = CTL_RETVAL_COMPLETE; 8058 8059 cdb = (struct scsi_per_res_out *)ctsio->cdb; 8060 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 8061 softc = lun->ctl_softc; 8062 8063 /* 8064 * We only support whole-LUN scope. The scope & type are ignored for 8065 * register, register and ignore existing key and clear. 8066 * We sometimes ignore scope and type on preempts too!! 8067 * Verify reservation type here as well. 8068 */ 8069 type = cdb->scope_type & SPR_TYPE_MASK; 8070 if ((cdb->action == SPRO_RESERVE) 8071 || (cdb->action == SPRO_RELEASE)) { 8072 if ((cdb->scope_type & SPR_SCOPE_MASK) != SPR_LU_SCOPE) { 8073 ctl_set_invalid_field(/*ctsio*/ ctsio, 8074 /*sks_valid*/ 1, 8075 /*command*/ 1, 8076 /*field*/ 2, 8077 /*bit_valid*/ 1, 8078 /*bit*/ 4); 8079 ctl_done((union ctl_io *)ctsio); 8080 return (CTL_RETVAL_COMPLETE); 8081 } 8082 8083 if (type>8 || type==2 || type==4 || type==0) { 8084 ctl_set_invalid_field(/*ctsio*/ ctsio, 8085 /*sks_valid*/ 1, 8086 /*command*/ 1, 8087 /*field*/ 2, 8088 /*bit_valid*/ 1, 8089 /*bit*/ 0); 8090 ctl_done((union ctl_io *)ctsio); 8091 return (CTL_RETVAL_COMPLETE); 8092 } 8093 } 8094 8095 param_len = scsi_4btoul(cdb->length); 8096 8097 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 8098 ctsio->kern_data_ptr = malloc(param_len, M_CTL, M_WAITOK); 8099 ctsio->kern_data_len = param_len; 8100 ctsio->kern_total_len = param_len; 8101 ctsio->kern_data_resid = 0; 8102 ctsio->kern_rel_offset = 0; 8103 ctsio->kern_sg_entries = 0; 8104 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 8105 ctsio->be_move_done = ctl_config_move_done; 8106 ctl_datamove((union ctl_io *)ctsio); 8107 8108 return (CTL_RETVAL_COMPLETE); 8109 } 8110 8111 param = (struct scsi_per_res_out_parms *)ctsio->kern_data_ptr; 8112 8113 residx = ctl_get_initindex(&ctsio->io_hdr.nexus); 8114 res_key = scsi_8btou64(param->res_key.key); 8115 sa_res_key = scsi_8btou64(param->serv_act_res_key); 8116 8117 /* 8118 * Validate the reservation key here except for SPRO_REG_IGNO 8119 * This must be done for all other service actions 8120 */ 8121 if ((cdb->action & SPRO_ACTION_MASK) != SPRO_REG_IGNO) { 8122 mtx_lock(&lun->lun_lock); 8123 if ((key = ctl_get_prkey(lun, residx)) != 0) { 8124 if (res_key != key) { 8125 /* 8126 * The current key passed in doesn't match 8127 * the one the initiator previously 8128 * registered. 8129 */ 8130 mtx_unlock(&lun->lun_lock); 8131 free(ctsio->kern_data_ptr, M_CTL); 8132 ctl_set_reservation_conflict(ctsio); 8133 ctl_done((union ctl_io *)ctsio); 8134 return (CTL_RETVAL_COMPLETE); 8135 } 8136 } else if ((cdb->action & SPRO_ACTION_MASK) != SPRO_REGISTER) { 8137 /* 8138 * We are not registered 8139 */ 8140 mtx_unlock(&lun->lun_lock); 8141 free(ctsio->kern_data_ptr, M_CTL); 8142 ctl_set_reservation_conflict(ctsio); 8143 ctl_done((union ctl_io *)ctsio); 8144 return (CTL_RETVAL_COMPLETE); 8145 } else if (res_key != 0) { 8146 /* 8147 * We are not registered and trying to register but 8148 * the register key isn't zero. 8149 */ 8150 mtx_unlock(&lun->lun_lock); 8151 free(ctsio->kern_data_ptr, M_CTL); 8152 ctl_set_reservation_conflict(ctsio); 8153 ctl_done((union ctl_io *)ctsio); 8154 return (CTL_RETVAL_COMPLETE); 8155 } 8156 mtx_unlock(&lun->lun_lock); 8157 } 8158 8159 switch (cdb->action & SPRO_ACTION_MASK) { 8160 case SPRO_REGISTER: 8161 case SPRO_REG_IGNO: { 8162 8163#if 0 8164 printf("Registration received\n"); 8165#endif 8166 8167 /* 8168 * We don't support any of these options, as we report in 8169 * the read capabilities request (see 8170 * ctl_persistent_reserve_in(), above). 8171 */ 8172 if ((param->flags & SPR_SPEC_I_PT) 8173 || (param->flags & SPR_ALL_TG_PT) 8174 || (param->flags & SPR_APTPL)) { 8175 int bit_ptr; 8176 8177 if (param->flags & SPR_APTPL) 8178 bit_ptr = 0; 8179 else if (param->flags & SPR_ALL_TG_PT) 8180 bit_ptr = 2; 8181 else /* SPR_SPEC_I_PT */ 8182 bit_ptr = 3; 8183 8184 free(ctsio->kern_data_ptr, M_CTL); 8185 ctl_set_invalid_field(ctsio, 8186 /*sks_valid*/ 1, 8187 /*command*/ 0, 8188 /*field*/ 20, 8189 /*bit_valid*/ 1, 8190 /*bit*/ bit_ptr); 8191 ctl_done((union ctl_io *)ctsio); 8192 return (CTL_RETVAL_COMPLETE); 8193 } 8194 8195 mtx_lock(&lun->lun_lock); 8196 8197 /* 8198 * The initiator wants to clear the 8199 * key/unregister. 8200 */ 8201 if (sa_res_key == 0) { 8202 if ((res_key == 0 8203 && (cdb->action & SPRO_ACTION_MASK) == SPRO_REGISTER) 8204 || ((cdb->action & SPRO_ACTION_MASK) == SPRO_REG_IGNO 8205 && ctl_get_prkey(lun, residx) == 0)) { 8206 mtx_unlock(&lun->lun_lock); 8207 goto done; 8208 } 8209 8210 ctl_clr_prkey(lun, residx); 8211 lun->pr_key_count--; 8212 8213 if (residx == lun->pr_res_idx) { 8214 lun->flags &= ~CTL_LUN_PR_RESERVED; 8215 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8216 8217 if ((lun->res_type == SPR_TYPE_WR_EX_RO 8218 || lun->res_type == SPR_TYPE_EX_AC_RO) 8219 && lun->pr_key_count) { 8220 /* 8221 * If the reservation is a registrants 8222 * only type we need to generate a UA 8223 * for other registered inits. The 8224 * sense code should be RESERVATIONS 8225 * RELEASED 8226 */ 8227 8228 for (i = softc->init_min; i < softc->init_max; i++){ 8229 if (ctl_get_prkey(lun, i) == 0) 8230 continue; 8231 ctl_est_ua(lun, i, 8232 CTL_UA_RES_RELEASE); 8233 } 8234 } 8235 lun->res_type = 0; 8236 } else if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS) { 8237 if (lun->pr_key_count==0) { 8238 lun->flags &= ~CTL_LUN_PR_RESERVED; 8239 lun->res_type = 0; 8240 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8241 } 8242 } 8243 lun->PRGeneration++; 8244 mtx_unlock(&lun->lun_lock); 8245 8246 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8247 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8248 persis_io.pr.pr_info.action = CTL_PR_UNREG_KEY; 8249 persis_io.pr.pr_info.residx = residx; 8250 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8251 sizeof(persis_io.pr), M_WAITOK); 8252 } else /* sa_res_key != 0 */ { 8253 8254 /* 8255 * If we aren't registered currently then increment 8256 * the key count and set the registered flag. 8257 */ 8258 ctl_alloc_prkey(lun, residx); 8259 if (ctl_get_prkey(lun, residx) == 0) 8260 lun->pr_key_count++; 8261 ctl_set_prkey(lun, residx, sa_res_key); 8262 lun->PRGeneration++; 8263 mtx_unlock(&lun->lun_lock); 8264 8265 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8266 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8267 persis_io.pr.pr_info.action = CTL_PR_REG_KEY; 8268 persis_io.pr.pr_info.residx = residx; 8269 memcpy(persis_io.pr.pr_info.sa_res_key, 8270 param->serv_act_res_key, 8271 sizeof(param->serv_act_res_key)); 8272 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8273 sizeof(persis_io.pr), M_WAITOK); 8274 } 8275 8276 break; 8277 } 8278 case SPRO_RESERVE: 8279#if 0 8280 printf("Reserve executed type %d\n", type); 8281#endif 8282 mtx_lock(&lun->lun_lock); 8283 if (lun->flags & CTL_LUN_PR_RESERVED) { 8284 /* 8285 * if this isn't the reservation holder and it's 8286 * not a "all registrants" type or if the type is 8287 * different then we have a conflict 8288 */ 8289 if ((lun->pr_res_idx != residx 8290 && lun->pr_res_idx != CTL_PR_ALL_REGISTRANTS) 8291 || lun->res_type != type) { 8292 mtx_unlock(&lun->lun_lock); 8293 free(ctsio->kern_data_ptr, M_CTL); 8294 ctl_set_reservation_conflict(ctsio); 8295 ctl_done((union ctl_io *)ctsio); 8296 return (CTL_RETVAL_COMPLETE); 8297 } 8298 mtx_unlock(&lun->lun_lock); 8299 } else /* create a reservation */ { 8300 /* 8301 * If it's not an "all registrants" type record 8302 * reservation holder 8303 */ 8304 if (type != SPR_TYPE_WR_EX_AR 8305 && type != SPR_TYPE_EX_AC_AR) 8306 lun->pr_res_idx = residx; /* Res holder */ 8307 else 8308 lun->pr_res_idx = CTL_PR_ALL_REGISTRANTS; 8309 8310 lun->flags |= CTL_LUN_PR_RESERVED; 8311 lun->res_type = type; 8312 8313 mtx_unlock(&lun->lun_lock); 8314 8315 /* send msg to other side */ 8316 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8317 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8318 persis_io.pr.pr_info.action = CTL_PR_RESERVE; 8319 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8320 persis_io.pr.pr_info.res_type = type; 8321 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8322 sizeof(persis_io.pr), M_WAITOK); 8323 } 8324 break; 8325 8326 case SPRO_RELEASE: 8327 mtx_lock(&lun->lun_lock); 8328 if ((lun->flags & CTL_LUN_PR_RESERVED) == 0) { 8329 /* No reservation exists return good status */ 8330 mtx_unlock(&lun->lun_lock); 8331 goto done; 8332 } 8333 /* 8334 * Is this nexus a reservation holder? 8335 */ 8336 if (lun->pr_res_idx != residx 8337 && lun->pr_res_idx != CTL_PR_ALL_REGISTRANTS) { 8338 /* 8339 * not a res holder return good status but 8340 * do nothing 8341 */ 8342 mtx_unlock(&lun->lun_lock); 8343 goto done; 8344 } 8345 8346 if (lun->res_type != type) { 8347 mtx_unlock(&lun->lun_lock); 8348 free(ctsio->kern_data_ptr, M_CTL); 8349 ctl_set_illegal_pr_release(ctsio); 8350 ctl_done((union ctl_io *)ctsio); 8351 return (CTL_RETVAL_COMPLETE); 8352 } 8353 8354 /* okay to release */ 8355 lun->flags &= ~CTL_LUN_PR_RESERVED; 8356 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8357 lun->res_type = 0; 8358 8359 /* 8360 * if this isn't an exclusive access 8361 * res generate UA for all other 8362 * registrants. 8363 */ 8364 if (type != SPR_TYPE_EX_AC 8365 && type != SPR_TYPE_WR_EX) { 8366 for (i = softc->init_min; i < softc->init_max; i++) { 8367 if (i == residx || ctl_get_prkey(lun, i) == 0) 8368 continue; 8369 ctl_est_ua(lun, i, CTL_UA_RES_RELEASE); 8370 } 8371 } 8372 mtx_unlock(&lun->lun_lock); 8373 8374 /* Send msg to other side */ 8375 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8376 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8377 persis_io.pr.pr_info.action = CTL_PR_RELEASE; 8378 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8379 sizeof(persis_io.pr), M_WAITOK); 8380 break; 8381 8382 case SPRO_CLEAR: 8383 /* send msg to other side */ 8384 8385 mtx_lock(&lun->lun_lock); 8386 lun->flags &= ~CTL_LUN_PR_RESERVED; 8387 lun->res_type = 0; 8388 lun->pr_key_count = 0; 8389 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8390 8391 ctl_clr_prkey(lun, residx); 8392 for (i = 0; i < CTL_MAX_INITIATORS; i++) 8393 if (ctl_get_prkey(lun, i) != 0) { 8394 ctl_clr_prkey(lun, i); 8395 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 8396 } 8397 lun->PRGeneration++; 8398 mtx_unlock(&lun->lun_lock); 8399 8400 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8401 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8402 persis_io.pr.pr_info.action = CTL_PR_CLEAR; 8403 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8404 sizeof(persis_io.pr), M_WAITOK); 8405 break; 8406 8407 case SPRO_PREEMPT: 8408 case SPRO_PRE_ABO: { 8409 int nretval; 8410 8411 nretval = ctl_pro_preempt(softc, lun, res_key, sa_res_key, type, 8412 residx, ctsio, cdb, param); 8413 if (nretval != 0) 8414 return (CTL_RETVAL_COMPLETE); 8415 break; 8416 } 8417 default: 8418 panic("Invalid PR type %x", cdb->action); 8419 } 8420 8421done: 8422 free(ctsio->kern_data_ptr, M_CTL); 8423 ctl_set_success(ctsio); 8424 ctl_done((union ctl_io *)ctsio); 8425 8426 return (retval); 8427} 8428 8429/* 8430 * This routine is for handling a message from the other SC pertaining to 8431 * persistent reserve out. All the error checking will have been done 8432 * so only perorming the action need be done here to keep the two 8433 * in sync. 8434 */ 8435static void 8436ctl_hndl_per_res_out_on_other_sc(union ctl_ha_msg *msg) 8437{ 8438 struct ctl_softc *softc = control_softc; 8439 struct ctl_lun *lun; 8440 int i; 8441 uint32_t residx, targ_lun; 8442 8443 targ_lun = msg->hdr.nexus.targ_mapped_lun; 8444 mtx_lock(&softc->ctl_lock); 8445 if ((targ_lun >= CTL_MAX_LUNS) || 8446 ((lun = softc->ctl_luns[targ_lun]) == NULL)) { 8447 mtx_unlock(&softc->ctl_lock); 8448 return; 8449 } 8450 mtx_lock(&lun->lun_lock); 8451 mtx_unlock(&softc->ctl_lock); 8452 if (lun->flags & CTL_LUN_DISABLED) { 8453 mtx_unlock(&lun->lun_lock); 8454 return; 8455 } 8456 residx = ctl_get_initindex(&msg->hdr.nexus); 8457 switch(msg->pr.pr_info.action) { 8458 case CTL_PR_REG_KEY: 8459 ctl_alloc_prkey(lun, msg->pr.pr_info.residx); 8460 if (ctl_get_prkey(lun, msg->pr.pr_info.residx) == 0) 8461 lun->pr_key_count++; 8462 ctl_set_prkey(lun, msg->pr.pr_info.residx, 8463 scsi_8btou64(msg->pr.pr_info.sa_res_key)); 8464 lun->PRGeneration++; 8465 break; 8466 8467 case CTL_PR_UNREG_KEY: 8468 ctl_clr_prkey(lun, msg->pr.pr_info.residx); 8469 lun->pr_key_count--; 8470 8471 /* XXX Need to see if the reservation has been released */ 8472 /* if so do we need to generate UA? */ 8473 if (msg->pr.pr_info.residx == lun->pr_res_idx) { 8474 lun->flags &= ~CTL_LUN_PR_RESERVED; 8475 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8476 8477 if ((lun->res_type == SPR_TYPE_WR_EX_RO 8478 || lun->res_type == SPR_TYPE_EX_AC_RO) 8479 && lun->pr_key_count) { 8480 /* 8481 * If the reservation is a registrants 8482 * only type we need to generate a UA 8483 * for other registered inits. The 8484 * sense code should be RESERVATIONS 8485 * RELEASED 8486 */ 8487 8488 for (i = softc->init_min; i < softc->init_max; i++) { 8489 if (ctl_get_prkey(lun, i) == 0) 8490 continue; 8491 8492 ctl_est_ua(lun, i, CTL_UA_RES_RELEASE); 8493 } 8494 } 8495 lun->res_type = 0; 8496 } else if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS) { 8497 if (lun->pr_key_count==0) { 8498 lun->flags &= ~CTL_LUN_PR_RESERVED; 8499 lun->res_type = 0; 8500 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8501 } 8502 } 8503 lun->PRGeneration++; 8504 break; 8505 8506 case CTL_PR_RESERVE: 8507 lun->flags |= CTL_LUN_PR_RESERVED; 8508 lun->res_type = msg->pr.pr_info.res_type; 8509 lun->pr_res_idx = msg->pr.pr_info.residx; 8510 8511 break; 8512 8513 case CTL_PR_RELEASE: 8514 /* 8515 * if this isn't an exclusive access res generate UA for all 8516 * other registrants. 8517 */ 8518 if (lun->res_type != SPR_TYPE_EX_AC 8519 && lun->res_type != SPR_TYPE_WR_EX) { 8520 for (i = softc->init_min; i < softc->init_max; i++) 8521 if (i == residx || ctl_get_prkey(lun, i) == 0) 8522 continue; 8523 ctl_est_ua(lun, i, CTL_UA_RES_RELEASE); 8524 } 8525 8526 lun->flags &= ~CTL_LUN_PR_RESERVED; 8527 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8528 lun->res_type = 0; 8529 break; 8530 8531 case CTL_PR_PREEMPT: 8532 ctl_pro_preempt_other(lun, msg); 8533 break; 8534 case CTL_PR_CLEAR: 8535 lun->flags &= ~CTL_LUN_PR_RESERVED; 8536 lun->res_type = 0; 8537 lun->pr_key_count = 0; 8538 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8539 8540 for (i=0; i < CTL_MAX_INITIATORS; i++) { 8541 if (ctl_get_prkey(lun, i) == 0) 8542 continue; 8543 ctl_clr_prkey(lun, i); 8544 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 8545 } 8546 lun->PRGeneration++; 8547 break; 8548 } 8549 8550 mtx_unlock(&lun->lun_lock); 8551} 8552 8553int 8554ctl_read_write(struct ctl_scsiio *ctsio) 8555{ 8556 struct ctl_lun *lun; 8557 struct ctl_lba_len_flags *lbalen; 8558 uint64_t lba; 8559 uint32_t num_blocks; 8560 int flags, retval; 8561 int isread; 8562 8563 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 8564 8565 CTL_DEBUG_PRINT(("ctl_read_write: command: %#x\n", ctsio->cdb[0])); 8566 8567 flags = 0; 8568 isread = ctsio->cdb[0] == READ_6 || ctsio->cdb[0] == READ_10 8569 || ctsio->cdb[0] == READ_12 || ctsio->cdb[0] == READ_16; 8570 switch (ctsio->cdb[0]) { 8571 case READ_6: 8572 case WRITE_6: { 8573 struct scsi_rw_6 *cdb; 8574 8575 cdb = (struct scsi_rw_6 *)ctsio->cdb; 8576 8577 lba = scsi_3btoul(cdb->addr); 8578 /* only 5 bits are valid in the most significant address byte */ 8579 lba &= 0x1fffff; 8580 num_blocks = cdb->length; 8581 /* 8582 * This is correct according to SBC-2. 8583 */ 8584 if (num_blocks == 0) 8585 num_blocks = 256; 8586 break; 8587 } 8588 case READ_10: 8589 case WRITE_10: { 8590 struct scsi_rw_10 *cdb; 8591 8592 cdb = (struct scsi_rw_10 *)ctsio->cdb; 8593 if (cdb->byte2 & SRW10_FUA) 8594 flags |= CTL_LLF_FUA; 8595 if (cdb->byte2 & SRW10_DPO) 8596 flags |= CTL_LLF_DPO; 8597 lba = scsi_4btoul(cdb->addr); 8598 num_blocks = scsi_2btoul(cdb->length); 8599 break; 8600 } 8601 case WRITE_VERIFY_10: { 8602 struct scsi_write_verify_10 *cdb; 8603 8604 cdb = (struct scsi_write_verify_10 *)ctsio->cdb; 8605 flags |= CTL_LLF_FUA; 8606 if (cdb->byte2 & SWV_DPO) 8607 flags |= CTL_LLF_DPO; 8608 lba = scsi_4btoul(cdb->addr); 8609 num_blocks = scsi_2btoul(cdb->length); 8610 break; 8611 } 8612 case READ_12: 8613 case WRITE_12: { 8614 struct scsi_rw_12 *cdb; 8615 8616 cdb = (struct scsi_rw_12 *)ctsio->cdb; 8617 if (cdb->byte2 & SRW12_FUA) 8618 flags |= CTL_LLF_FUA; 8619 if (cdb->byte2 & SRW12_DPO) 8620 flags |= CTL_LLF_DPO; 8621 lba = scsi_4btoul(cdb->addr); 8622 num_blocks = scsi_4btoul(cdb->length); 8623 break; 8624 } 8625 case WRITE_VERIFY_12: { 8626 struct scsi_write_verify_12 *cdb; 8627 8628 cdb = (struct scsi_write_verify_12 *)ctsio->cdb; 8629 flags |= CTL_LLF_FUA; 8630 if (cdb->byte2 & SWV_DPO) 8631 flags |= CTL_LLF_DPO; 8632 lba = scsi_4btoul(cdb->addr); 8633 num_blocks = scsi_4btoul(cdb->length); 8634 break; 8635 } 8636 case READ_16: 8637 case WRITE_16: { 8638 struct scsi_rw_16 *cdb; 8639 8640 cdb = (struct scsi_rw_16 *)ctsio->cdb; 8641 if (cdb->byte2 & SRW12_FUA) 8642 flags |= CTL_LLF_FUA; 8643 if (cdb->byte2 & SRW12_DPO) 8644 flags |= CTL_LLF_DPO; 8645 lba = scsi_8btou64(cdb->addr); 8646 num_blocks = scsi_4btoul(cdb->length); 8647 break; 8648 } 8649 case WRITE_ATOMIC_16: { 8650 struct scsi_write_atomic_16 *cdb; 8651 8652 if (lun->be_lun->atomicblock == 0) { 8653 ctl_set_invalid_opcode(ctsio); 8654 ctl_done((union ctl_io *)ctsio); 8655 return (CTL_RETVAL_COMPLETE); 8656 } 8657 8658 cdb = (struct scsi_write_atomic_16 *)ctsio->cdb; 8659 if (cdb->byte2 & SRW12_FUA) 8660 flags |= CTL_LLF_FUA; 8661 if (cdb->byte2 & SRW12_DPO) 8662 flags |= CTL_LLF_DPO; 8663 lba = scsi_8btou64(cdb->addr); 8664 num_blocks = scsi_2btoul(cdb->length); 8665 if (num_blocks > lun->be_lun->atomicblock) { 8666 ctl_set_invalid_field(ctsio, /*sks_valid*/ 1, 8667 /*command*/ 1, /*field*/ 12, /*bit_valid*/ 0, 8668 /*bit*/ 0); 8669 ctl_done((union ctl_io *)ctsio); 8670 return (CTL_RETVAL_COMPLETE); 8671 } 8672 break; 8673 } 8674 case WRITE_VERIFY_16: { 8675 struct scsi_write_verify_16 *cdb; 8676 8677 cdb = (struct scsi_write_verify_16 *)ctsio->cdb; 8678 flags |= CTL_LLF_FUA; 8679 if (cdb->byte2 & SWV_DPO) 8680 flags |= CTL_LLF_DPO; 8681 lba = scsi_8btou64(cdb->addr); 8682 num_blocks = scsi_4btoul(cdb->length); 8683 break; 8684 } 8685 default: 8686 /* 8687 * We got a command we don't support. This shouldn't 8688 * happen, commands should be filtered out above us. 8689 */ 8690 ctl_set_invalid_opcode(ctsio); 8691 ctl_done((union ctl_io *)ctsio); 8692 8693 return (CTL_RETVAL_COMPLETE); 8694 break; /* NOTREACHED */ 8695 } 8696 8697 /* 8698 * The first check is to make sure we're in bounds, the second 8699 * check is to catch wrap-around problems. If the lba + num blocks 8700 * is less than the lba, then we've wrapped around and the block 8701 * range is invalid anyway. 8702 */ 8703 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 8704 || ((lba + num_blocks) < lba)) { 8705 ctl_set_lba_out_of_range(ctsio); 8706 ctl_done((union ctl_io *)ctsio); 8707 return (CTL_RETVAL_COMPLETE); 8708 } 8709 8710 /* 8711 * According to SBC-3, a transfer length of 0 is not an error. 8712 * Note that this cannot happen with WRITE(6) or READ(6), since 0 8713 * translates to 256 blocks for those commands. 8714 */ 8715 if (num_blocks == 0) { 8716 ctl_set_success(ctsio); 8717 ctl_done((union ctl_io *)ctsio); 8718 return (CTL_RETVAL_COMPLETE); 8719 } 8720 8721 /* Set FUA and/or DPO if caches are disabled. */ 8722 if (isread) { 8723 if ((lun->mode_pages.caching_page[CTL_PAGE_CURRENT].flags1 & 8724 SCP_RCD) != 0) 8725 flags |= CTL_LLF_FUA | CTL_LLF_DPO; 8726 } else { 8727 if ((lun->mode_pages.caching_page[CTL_PAGE_CURRENT].flags1 & 8728 SCP_WCE) == 0) 8729 flags |= CTL_LLF_FUA; 8730 } 8731 8732 lbalen = (struct ctl_lba_len_flags *) 8733 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 8734 lbalen->lba = lba; 8735 lbalen->len = num_blocks; 8736 lbalen->flags = (isread ? CTL_LLF_READ : CTL_LLF_WRITE) | flags; 8737 8738 ctsio->kern_total_len = num_blocks * lun->be_lun->blocksize; 8739 ctsio->kern_rel_offset = 0; 8740 8741 CTL_DEBUG_PRINT(("ctl_read_write: calling data_submit()\n")); 8742 8743 retval = lun->backend->data_submit((union ctl_io *)ctsio); 8744 return (retval); 8745} 8746 8747static int 8748ctl_cnw_cont(union ctl_io *io) 8749{ 8750 struct ctl_scsiio *ctsio; 8751 struct ctl_lun *lun; 8752 struct ctl_lba_len_flags *lbalen; 8753 int retval; 8754 8755 ctsio = &io->scsiio; 8756 ctsio->io_hdr.status = CTL_STATUS_NONE; 8757 ctsio->io_hdr.flags &= ~CTL_FLAG_IO_CONT; 8758 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 8759 lbalen = (struct ctl_lba_len_flags *) 8760 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 8761 lbalen->flags &= ~CTL_LLF_COMPARE; 8762 lbalen->flags |= CTL_LLF_WRITE; 8763 8764 CTL_DEBUG_PRINT(("ctl_cnw_cont: calling data_submit()\n")); 8765 retval = lun->backend->data_submit((union ctl_io *)ctsio); 8766 return (retval); 8767} 8768 8769int 8770ctl_cnw(struct ctl_scsiio *ctsio) 8771{ 8772 struct ctl_lun *lun; 8773 struct ctl_lba_len_flags *lbalen; 8774 uint64_t lba; 8775 uint32_t num_blocks; 8776 int flags, retval; 8777 8778 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 8779 8780 CTL_DEBUG_PRINT(("ctl_cnw: command: %#x\n", ctsio->cdb[0])); 8781 8782 flags = 0; 8783 switch (ctsio->cdb[0]) { 8784 case COMPARE_AND_WRITE: { 8785 struct scsi_compare_and_write *cdb; 8786 8787 cdb = (struct scsi_compare_and_write *)ctsio->cdb; 8788 if (cdb->byte2 & SRW10_FUA) 8789 flags |= CTL_LLF_FUA; 8790 if (cdb->byte2 & SRW10_DPO) 8791 flags |= CTL_LLF_DPO; 8792 lba = scsi_8btou64(cdb->addr); 8793 num_blocks = cdb->length; 8794 break; 8795 } 8796 default: 8797 /* 8798 * We got a command we don't support. This shouldn't 8799 * happen, commands should be filtered out above us. 8800 */ 8801 ctl_set_invalid_opcode(ctsio); 8802 ctl_done((union ctl_io *)ctsio); 8803 8804 return (CTL_RETVAL_COMPLETE); 8805 break; /* NOTREACHED */ 8806 } 8807 8808 /* 8809 * The first check is to make sure we're in bounds, the second 8810 * check is to catch wrap-around problems. If the lba + num blocks 8811 * is less than the lba, then we've wrapped around and the block 8812 * range is invalid anyway. 8813 */ 8814 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 8815 || ((lba + num_blocks) < lba)) { 8816 ctl_set_lba_out_of_range(ctsio); 8817 ctl_done((union ctl_io *)ctsio); 8818 return (CTL_RETVAL_COMPLETE); 8819 } 8820 8821 /* 8822 * According to SBC-3, a transfer length of 0 is not an error. 8823 */ 8824 if (num_blocks == 0) { 8825 ctl_set_success(ctsio); 8826 ctl_done((union ctl_io *)ctsio); 8827 return (CTL_RETVAL_COMPLETE); 8828 } 8829 8830 /* Set FUA if write cache is disabled. */ 8831 if ((lun->mode_pages.caching_page[CTL_PAGE_CURRENT].flags1 & 8832 SCP_WCE) == 0) 8833 flags |= CTL_LLF_FUA; 8834 8835 ctsio->kern_total_len = 2 * num_blocks * lun->be_lun->blocksize; 8836 ctsio->kern_rel_offset = 0; 8837 8838 /* 8839 * Set the IO_CONT flag, so that if this I/O gets passed to 8840 * ctl_data_submit_done(), it'll get passed back to 8841 * ctl_ctl_cnw_cont() for further processing. 8842 */ 8843 ctsio->io_hdr.flags |= CTL_FLAG_IO_CONT; 8844 ctsio->io_cont = ctl_cnw_cont; 8845 8846 lbalen = (struct ctl_lba_len_flags *) 8847 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 8848 lbalen->lba = lba; 8849 lbalen->len = num_blocks; 8850 lbalen->flags = CTL_LLF_COMPARE | flags; 8851 8852 CTL_DEBUG_PRINT(("ctl_cnw: calling data_submit()\n")); 8853 retval = lun->backend->data_submit((union ctl_io *)ctsio); 8854 return (retval); 8855} 8856 8857int 8858ctl_verify(struct ctl_scsiio *ctsio) 8859{ 8860 struct ctl_lun *lun; 8861 struct ctl_lba_len_flags *lbalen; 8862 uint64_t lba; 8863 uint32_t num_blocks; 8864 int bytchk, flags; 8865 int retval; 8866 8867 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 8868 8869 CTL_DEBUG_PRINT(("ctl_verify: command: %#x\n", ctsio->cdb[0])); 8870 8871 bytchk = 0; 8872 flags = CTL_LLF_FUA; 8873 switch (ctsio->cdb[0]) { 8874 case VERIFY_10: { 8875 struct scsi_verify_10 *cdb; 8876 8877 cdb = (struct scsi_verify_10 *)ctsio->cdb; 8878 if (cdb->byte2 & SVFY_BYTCHK) 8879 bytchk = 1; 8880 if (cdb->byte2 & SVFY_DPO) 8881 flags |= CTL_LLF_DPO; 8882 lba = scsi_4btoul(cdb->addr); 8883 num_blocks = scsi_2btoul(cdb->length); 8884 break; 8885 } 8886 case VERIFY_12: { 8887 struct scsi_verify_12 *cdb; 8888 8889 cdb = (struct scsi_verify_12 *)ctsio->cdb; 8890 if (cdb->byte2 & SVFY_BYTCHK) 8891 bytchk = 1; 8892 if (cdb->byte2 & SVFY_DPO) 8893 flags |= CTL_LLF_DPO; 8894 lba = scsi_4btoul(cdb->addr); 8895 num_blocks = scsi_4btoul(cdb->length); 8896 break; 8897 } 8898 case VERIFY_16: { 8899 struct scsi_rw_16 *cdb; 8900 8901 cdb = (struct scsi_rw_16 *)ctsio->cdb; 8902 if (cdb->byte2 & SVFY_BYTCHK) 8903 bytchk = 1; 8904 if (cdb->byte2 & SVFY_DPO) 8905 flags |= CTL_LLF_DPO; 8906 lba = scsi_8btou64(cdb->addr); 8907 num_blocks = scsi_4btoul(cdb->length); 8908 break; 8909 } 8910 default: 8911 /* 8912 * We got a command we don't support. This shouldn't 8913 * happen, commands should be filtered out above us. 8914 */ 8915 ctl_set_invalid_opcode(ctsio); 8916 ctl_done((union ctl_io *)ctsio); 8917 return (CTL_RETVAL_COMPLETE); 8918 } 8919 8920 /* 8921 * The first check is to make sure we're in bounds, the second 8922 * check is to catch wrap-around problems. If the lba + num blocks 8923 * is less than the lba, then we've wrapped around and the block 8924 * range is invalid anyway. 8925 */ 8926 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 8927 || ((lba + num_blocks) < lba)) { 8928 ctl_set_lba_out_of_range(ctsio); 8929 ctl_done((union ctl_io *)ctsio); 8930 return (CTL_RETVAL_COMPLETE); 8931 } 8932 8933 /* 8934 * According to SBC-3, a transfer length of 0 is not an error. 8935 */ 8936 if (num_blocks == 0) { 8937 ctl_set_success(ctsio); 8938 ctl_done((union ctl_io *)ctsio); 8939 return (CTL_RETVAL_COMPLETE); 8940 } 8941 8942 lbalen = (struct ctl_lba_len_flags *) 8943 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 8944 lbalen->lba = lba; 8945 lbalen->len = num_blocks; 8946 if (bytchk) { 8947 lbalen->flags = CTL_LLF_COMPARE | flags; 8948 ctsio->kern_total_len = num_blocks * lun->be_lun->blocksize; 8949 } else { 8950 lbalen->flags = CTL_LLF_VERIFY | flags; 8951 ctsio->kern_total_len = 0; 8952 } 8953 ctsio->kern_rel_offset = 0; 8954 8955 CTL_DEBUG_PRINT(("ctl_verify: calling data_submit()\n")); 8956 retval = lun->backend->data_submit((union ctl_io *)ctsio); 8957 return (retval); 8958} 8959 8960int 8961ctl_report_luns(struct ctl_scsiio *ctsio) 8962{ 8963 struct ctl_softc *softc; 8964 struct scsi_report_luns *cdb; 8965 struct scsi_report_luns_data *lun_data; 8966 struct ctl_lun *lun, *request_lun; 8967 struct ctl_port *port; 8968 int num_luns, retval; 8969 uint32_t alloc_len, lun_datalen; 8970 int num_filled; 8971 uint32_t initidx, targ_lun_id, lun_id; 8972 8973 retval = CTL_RETVAL_COMPLETE; 8974 cdb = (struct scsi_report_luns *)ctsio->cdb; 8975 port = ctl_io_port(&ctsio->io_hdr); 8976 softc = port->ctl_softc; 8977 8978 CTL_DEBUG_PRINT(("ctl_report_luns\n")); 8979 8980 mtx_lock(&softc->ctl_lock); 8981 num_luns = 0; 8982 for (targ_lun_id = 0; targ_lun_id < CTL_MAX_LUNS; targ_lun_id++) { 8983 if (ctl_lun_map_from_port(port, targ_lun_id) < CTL_MAX_LUNS) 8984 num_luns++; 8985 } 8986 mtx_unlock(&softc->ctl_lock); 8987 8988 switch (cdb->select_report) { 8989 case RPL_REPORT_DEFAULT: 8990 case RPL_REPORT_ALL: 8991 case RPL_REPORT_NONSUBSID: 8992 break; 8993 case RPL_REPORT_WELLKNOWN: 8994 case RPL_REPORT_ADMIN: 8995 case RPL_REPORT_CONGLOM: 8996 num_luns = 0; 8997 break; 8998 default: 8999 ctl_set_invalid_field(ctsio, 9000 /*sks_valid*/ 1, 9001 /*command*/ 1, 9002 /*field*/ 2, 9003 /*bit_valid*/ 0, 9004 /*bit*/ 0); 9005 ctl_done((union ctl_io *)ctsio); 9006 return (retval); 9007 break; /* NOTREACHED */ 9008 } 9009 9010 alloc_len = scsi_4btoul(cdb->length); 9011 /* 9012 * The initiator has to allocate at least 16 bytes for this request, 9013 * so he can at least get the header and the first LUN. Otherwise 9014 * we reject the request (per SPC-3 rev 14, section 6.21). 9015 */ 9016 if (alloc_len < (sizeof(struct scsi_report_luns_data) + 9017 sizeof(struct scsi_report_luns_lundata))) { 9018 ctl_set_invalid_field(ctsio, 9019 /*sks_valid*/ 1, 9020 /*command*/ 1, 9021 /*field*/ 6, 9022 /*bit_valid*/ 0, 9023 /*bit*/ 0); 9024 ctl_done((union ctl_io *)ctsio); 9025 return (retval); 9026 } 9027 9028 request_lun = (struct ctl_lun *) 9029 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9030 9031 lun_datalen = sizeof(*lun_data) + 9032 (num_luns * sizeof(struct scsi_report_luns_lundata)); 9033 9034 ctsio->kern_data_ptr = malloc(lun_datalen, M_CTL, M_WAITOK | M_ZERO); 9035 lun_data = (struct scsi_report_luns_data *)ctsio->kern_data_ptr; 9036 ctsio->kern_sg_entries = 0; 9037 9038 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 9039 9040 mtx_lock(&softc->ctl_lock); 9041 for (targ_lun_id = 0, num_filled = 0; targ_lun_id < CTL_MAX_LUNS && num_filled < num_luns; targ_lun_id++) { 9042 lun_id = ctl_lun_map_from_port(port, targ_lun_id); 9043 if (lun_id >= CTL_MAX_LUNS) 9044 continue; 9045 lun = softc->ctl_luns[lun_id]; 9046 if (lun == NULL) 9047 continue; 9048 9049 if (targ_lun_id <= 0xff) { 9050 /* 9051 * Peripheral addressing method, bus number 0. 9052 */ 9053 lun_data->luns[num_filled].lundata[0] = 9054 RPL_LUNDATA_ATYP_PERIPH; 9055 lun_data->luns[num_filled].lundata[1] = targ_lun_id; 9056 num_filled++; 9057 } else if (targ_lun_id <= 0x3fff) { 9058 /* 9059 * Flat addressing method. 9060 */ 9061 lun_data->luns[num_filled].lundata[0] = 9062 RPL_LUNDATA_ATYP_FLAT | (targ_lun_id >> 8); 9063 lun_data->luns[num_filled].lundata[1] = 9064 (targ_lun_id & 0xff); 9065 num_filled++; 9066 } else if (targ_lun_id <= 0xffffff) { 9067 /* 9068 * Extended flat addressing method. 9069 */ 9070 lun_data->luns[num_filled].lundata[0] = 9071 RPL_LUNDATA_ATYP_EXTLUN | 0x12; 9072 scsi_ulto3b(targ_lun_id, 9073 &lun_data->luns[num_filled].lundata[1]); 9074 num_filled++; 9075 } else { 9076 printf("ctl_report_luns: bogus LUN number %jd, " 9077 "skipping\n", (intmax_t)targ_lun_id); 9078 } 9079 /* 9080 * According to SPC-3, rev 14 section 6.21: 9081 * 9082 * "The execution of a REPORT LUNS command to any valid and 9083 * installed logical unit shall clear the REPORTED LUNS DATA 9084 * HAS CHANGED unit attention condition for all logical 9085 * units of that target with respect to the requesting 9086 * initiator. A valid and installed logical unit is one 9087 * having a PERIPHERAL QUALIFIER of 000b in the standard 9088 * INQUIRY data (see 6.4.2)." 9089 * 9090 * If request_lun is NULL, the LUN this report luns command 9091 * was issued to is either disabled or doesn't exist. In that 9092 * case, we shouldn't clear any pending lun change unit 9093 * attention. 9094 */ 9095 if (request_lun != NULL) { 9096 mtx_lock(&lun->lun_lock); 9097 ctl_clr_ua(lun, initidx, CTL_UA_LUN_CHANGE); 9098 mtx_unlock(&lun->lun_lock); 9099 } 9100 } 9101 mtx_unlock(&softc->ctl_lock); 9102 9103 /* 9104 * It's quite possible that we've returned fewer LUNs than we allocated 9105 * space for. Trim it. 9106 */ 9107 lun_datalen = sizeof(*lun_data) + 9108 (num_filled * sizeof(struct scsi_report_luns_lundata)); 9109 9110 if (lun_datalen < alloc_len) { 9111 ctsio->residual = alloc_len - lun_datalen; 9112 ctsio->kern_data_len = lun_datalen; 9113 ctsio->kern_total_len = lun_datalen; 9114 } else { 9115 ctsio->residual = 0; 9116 ctsio->kern_data_len = alloc_len; 9117 ctsio->kern_total_len = alloc_len; 9118 } 9119 ctsio->kern_data_resid = 0; 9120 ctsio->kern_rel_offset = 0; 9121 ctsio->kern_sg_entries = 0; 9122 9123 /* 9124 * We set this to the actual data length, regardless of how much 9125 * space we actually have to return results. If the user looks at 9126 * this value, he'll know whether or not he allocated enough space 9127 * and reissue the command if necessary. We don't support well 9128 * known logical units, so if the user asks for that, return none. 9129 */ 9130 scsi_ulto4b(lun_datalen - 8, lun_data->length); 9131 9132 /* 9133 * We can only return SCSI_STATUS_CHECK_COND when we can't satisfy 9134 * this request. 9135 */ 9136 ctl_set_success(ctsio); 9137 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9138 ctsio->be_move_done = ctl_config_move_done; 9139 ctl_datamove((union ctl_io *)ctsio); 9140 return (retval); 9141} 9142 9143int 9144ctl_request_sense(struct ctl_scsiio *ctsio) 9145{ 9146 struct scsi_request_sense *cdb; 9147 struct scsi_sense_data *sense_ptr; 9148 struct ctl_softc *ctl_softc; 9149 struct ctl_lun *lun; 9150 uint32_t initidx; 9151 int have_error; 9152 scsi_sense_data_type sense_format; 9153 ctl_ua_type ua_type; 9154 9155 cdb = (struct scsi_request_sense *)ctsio->cdb; 9156 9157 ctl_softc = control_softc; 9158 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9159 9160 CTL_DEBUG_PRINT(("ctl_request_sense\n")); 9161 9162 /* 9163 * Determine which sense format the user wants. 9164 */ 9165 if (cdb->byte2 & SRS_DESC) 9166 sense_format = SSD_TYPE_DESC; 9167 else 9168 sense_format = SSD_TYPE_FIXED; 9169 9170 ctsio->kern_data_ptr = malloc(sizeof(*sense_ptr), M_CTL, M_WAITOK); 9171 sense_ptr = (struct scsi_sense_data *)ctsio->kern_data_ptr; 9172 ctsio->kern_sg_entries = 0; 9173 9174 /* 9175 * struct scsi_sense_data, which is currently set to 256 bytes, is 9176 * larger than the largest allowed value for the length field in the 9177 * REQUEST SENSE CDB, which is 252 bytes as of SPC-4. 9178 */ 9179 ctsio->residual = 0; 9180 ctsio->kern_data_len = cdb->length; 9181 ctsio->kern_total_len = cdb->length; 9182 9183 ctsio->kern_data_resid = 0; 9184 ctsio->kern_rel_offset = 0; 9185 ctsio->kern_sg_entries = 0; 9186 9187 /* 9188 * If we don't have a LUN, we don't have any pending sense. 9189 */ 9190 if (lun == NULL) 9191 goto no_sense; 9192 9193 have_error = 0; 9194 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 9195 /* 9196 * Check for pending sense, and then for pending unit attentions. 9197 * Pending sense gets returned first, then pending unit attentions. 9198 */ 9199 mtx_lock(&lun->lun_lock); 9200#ifdef CTL_WITH_CA 9201 if (ctl_is_set(lun->have_ca, initidx)) { 9202 scsi_sense_data_type stored_format; 9203 9204 /* 9205 * Check to see which sense format was used for the stored 9206 * sense data. 9207 */ 9208 stored_format = scsi_sense_type(&lun->pending_sense[initidx]); 9209 9210 /* 9211 * If the user requested a different sense format than the 9212 * one we stored, then we need to convert it to the other 9213 * format. If we're going from descriptor to fixed format 9214 * sense data, we may lose things in translation, depending 9215 * on what options were used. 9216 * 9217 * If the stored format is SSD_TYPE_NONE (i.e. invalid), 9218 * for some reason we'll just copy it out as-is. 9219 */ 9220 if ((stored_format == SSD_TYPE_FIXED) 9221 && (sense_format == SSD_TYPE_DESC)) 9222 ctl_sense_to_desc((struct scsi_sense_data_fixed *) 9223 &lun->pending_sense[initidx], 9224 (struct scsi_sense_data_desc *)sense_ptr); 9225 else if ((stored_format == SSD_TYPE_DESC) 9226 && (sense_format == SSD_TYPE_FIXED)) 9227 ctl_sense_to_fixed((struct scsi_sense_data_desc *) 9228 &lun->pending_sense[initidx], 9229 (struct scsi_sense_data_fixed *)sense_ptr); 9230 else 9231 memcpy(sense_ptr, &lun->pending_sense[initidx], 9232 MIN(sizeof(*sense_ptr), 9233 sizeof(lun->pending_sense[initidx]))); 9234 9235 ctl_clear_mask(lun->have_ca, initidx); 9236 have_error = 1; 9237 } else 9238#endif 9239 { 9240 ua_type = ctl_build_ua(lun, initidx, sense_ptr, sense_format); 9241 if (ua_type != CTL_UA_NONE) 9242 have_error = 1; 9243 if (ua_type == CTL_UA_LUN_CHANGE) { 9244 mtx_unlock(&lun->lun_lock); 9245 mtx_lock(&ctl_softc->ctl_lock); 9246 ctl_clr_ua_allluns(ctl_softc, initidx, ua_type); 9247 mtx_unlock(&ctl_softc->ctl_lock); 9248 mtx_lock(&lun->lun_lock); 9249 } 9250 9251 } 9252 mtx_unlock(&lun->lun_lock); 9253 9254 /* 9255 * We already have a pending error, return it. 9256 */ 9257 if (have_error != 0) { 9258 /* 9259 * We report the SCSI status as OK, since the status of the 9260 * request sense command itself is OK. 9261 * We report 0 for the sense length, because we aren't doing 9262 * autosense in this case. We're reporting sense as 9263 * parameter data. 9264 */ 9265 ctl_set_success(ctsio); 9266 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9267 ctsio->be_move_done = ctl_config_move_done; 9268 ctl_datamove((union ctl_io *)ctsio); 9269 return (CTL_RETVAL_COMPLETE); 9270 } 9271 9272no_sense: 9273 9274 /* 9275 * No sense information to report, so we report that everything is 9276 * okay. 9277 */ 9278 ctl_set_sense_data(sense_ptr, 9279 lun, 9280 sense_format, 9281 /*current_error*/ 1, 9282 /*sense_key*/ SSD_KEY_NO_SENSE, 9283 /*asc*/ 0x00, 9284 /*ascq*/ 0x00, 9285 SSD_ELEM_NONE); 9286 9287 /* 9288 * We report 0 for the sense length, because we aren't doing 9289 * autosense in this case. We're reporting sense as parameter data. 9290 */ 9291 ctl_set_success(ctsio); 9292 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9293 ctsio->be_move_done = ctl_config_move_done; 9294 ctl_datamove((union ctl_io *)ctsio); 9295 return (CTL_RETVAL_COMPLETE); 9296} 9297 9298int 9299ctl_tur(struct ctl_scsiio *ctsio) 9300{ 9301 9302 CTL_DEBUG_PRINT(("ctl_tur\n")); 9303 9304 ctl_set_success(ctsio); 9305 ctl_done((union ctl_io *)ctsio); 9306 9307 return (CTL_RETVAL_COMPLETE); 9308} 9309 9310/* 9311 * SCSI VPD page 0x00, the Supported VPD Pages page. 9312 */ 9313static int 9314ctl_inquiry_evpd_supported(struct ctl_scsiio *ctsio, int alloc_len) 9315{ 9316 struct scsi_vpd_supported_pages *pages; 9317 int sup_page_size; 9318 struct ctl_lun *lun; 9319 int p; 9320 9321 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9322 9323 sup_page_size = sizeof(struct scsi_vpd_supported_pages) * 9324 SCSI_EVPD_NUM_SUPPORTED_PAGES; 9325 ctsio->kern_data_ptr = malloc(sup_page_size, M_CTL, M_WAITOK | M_ZERO); 9326 pages = (struct scsi_vpd_supported_pages *)ctsio->kern_data_ptr; 9327 ctsio->kern_sg_entries = 0; 9328 9329 if (sup_page_size < alloc_len) { 9330 ctsio->residual = alloc_len - sup_page_size; 9331 ctsio->kern_data_len = sup_page_size; 9332 ctsio->kern_total_len = sup_page_size; 9333 } else { 9334 ctsio->residual = 0; 9335 ctsio->kern_data_len = alloc_len; 9336 ctsio->kern_total_len = alloc_len; 9337 } 9338 ctsio->kern_data_resid = 0; 9339 ctsio->kern_rel_offset = 0; 9340 ctsio->kern_sg_entries = 0; 9341 9342 /* 9343 * The control device is always connected. The disk device, on the 9344 * other hand, may not be online all the time. Need to change this 9345 * to figure out whether the disk device is actually online or not. 9346 */ 9347 if (lun != NULL) 9348 pages->device = (SID_QUAL_LU_CONNECTED << 5) | 9349 lun->be_lun->lun_type; 9350 else 9351 pages->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9352 9353 p = 0; 9354 /* Supported VPD pages */ 9355 pages->page_list[p++] = SVPD_SUPPORTED_PAGES; 9356 /* Serial Number */ 9357 pages->page_list[p++] = SVPD_UNIT_SERIAL_NUMBER; 9358 /* Device Identification */ 9359 pages->page_list[p++] = SVPD_DEVICE_ID; 9360 /* Extended INQUIRY Data */ 9361 pages->page_list[p++] = SVPD_EXTENDED_INQUIRY_DATA; 9362 /* Mode Page Policy */ 9363 pages->page_list[p++] = SVPD_MODE_PAGE_POLICY; 9364 /* SCSI Ports */ 9365 pages->page_list[p++] = SVPD_SCSI_PORTS; 9366 /* Third-party Copy */ 9367 pages->page_list[p++] = SVPD_SCSI_TPC; 9368 if (lun != NULL && lun->be_lun->lun_type == T_DIRECT) { 9369 /* Block limits */ 9370 pages->page_list[p++] = SVPD_BLOCK_LIMITS; 9371 /* Block Device Characteristics */ 9372 pages->page_list[p++] = SVPD_BDC; 9373 /* Logical Block Provisioning */ 9374 pages->page_list[p++] = SVPD_LBP; 9375 } 9376 pages->length = p; 9377 9378 ctl_set_success(ctsio); 9379 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9380 ctsio->be_move_done = ctl_config_move_done; 9381 ctl_datamove((union ctl_io *)ctsio); 9382 return (CTL_RETVAL_COMPLETE); 9383} 9384 9385/* 9386 * SCSI VPD page 0x80, the Unit Serial Number page. 9387 */ 9388static int 9389ctl_inquiry_evpd_serial(struct ctl_scsiio *ctsio, int alloc_len) 9390{ 9391 struct scsi_vpd_unit_serial_number *sn_ptr; 9392 struct ctl_lun *lun; 9393 int data_len; 9394 9395 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9396 9397 data_len = 4 + CTL_SN_LEN; 9398 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9399 sn_ptr = (struct scsi_vpd_unit_serial_number *)ctsio->kern_data_ptr; 9400 if (data_len < alloc_len) { 9401 ctsio->residual = alloc_len - data_len; 9402 ctsio->kern_data_len = data_len; 9403 ctsio->kern_total_len = data_len; 9404 } else { 9405 ctsio->residual = 0; 9406 ctsio->kern_data_len = alloc_len; 9407 ctsio->kern_total_len = alloc_len; 9408 } 9409 ctsio->kern_data_resid = 0; 9410 ctsio->kern_rel_offset = 0; 9411 ctsio->kern_sg_entries = 0; 9412 9413 /* 9414 * The control device is always connected. The disk device, on the 9415 * other hand, may not be online all the time. Need to change this 9416 * to figure out whether the disk device is actually online or not. 9417 */ 9418 if (lun != NULL) 9419 sn_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9420 lun->be_lun->lun_type; 9421 else 9422 sn_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9423 9424 sn_ptr->page_code = SVPD_UNIT_SERIAL_NUMBER; 9425 sn_ptr->length = CTL_SN_LEN; 9426 /* 9427 * If we don't have a LUN, we just leave the serial number as 9428 * all spaces. 9429 */ 9430 if (lun != NULL) { 9431 strncpy((char *)sn_ptr->serial_num, 9432 (char *)lun->be_lun->serial_num, CTL_SN_LEN); 9433 } else 9434 memset(sn_ptr->serial_num, 0x20, CTL_SN_LEN); 9435 9436 ctl_set_success(ctsio); 9437 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9438 ctsio->be_move_done = ctl_config_move_done; 9439 ctl_datamove((union ctl_io *)ctsio); 9440 return (CTL_RETVAL_COMPLETE); 9441} 9442 9443 9444/* 9445 * SCSI VPD page 0x86, the Extended INQUIRY Data page. 9446 */ 9447static int 9448ctl_inquiry_evpd_eid(struct ctl_scsiio *ctsio, int alloc_len) 9449{ 9450 struct scsi_vpd_extended_inquiry_data *eid_ptr; 9451 struct ctl_lun *lun; 9452 int data_len; 9453 9454 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9455 9456 data_len = sizeof(struct scsi_vpd_extended_inquiry_data); 9457 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9458 eid_ptr = (struct scsi_vpd_extended_inquiry_data *)ctsio->kern_data_ptr; 9459 ctsio->kern_sg_entries = 0; 9460 9461 if (data_len < alloc_len) { 9462 ctsio->residual = alloc_len - data_len; 9463 ctsio->kern_data_len = data_len; 9464 ctsio->kern_total_len = data_len; 9465 } else { 9466 ctsio->residual = 0; 9467 ctsio->kern_data_len = alloc_len; 9468 ctsio->kern_total_len = alloc_len; 9469 } 9470 ctsio->kern_data_resid = 0; 9471 ctsio->kern_rel_offset = 0; 9472 ctsio->kern_sg_entries = 0; 9473 9474 /* 9475 * The control device is always connected. The disk device, on the 9476 * other hand, may not be online all the time. 9477 */ 9478 if (lun != NULL) 9479 eid_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9480 lun->be_lun->lun_type; 9481 else 9482 eid_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9483 eid_ptr->page_code = SVPD_EXTENDED_INQUIRY_DATA; 9484 scsi_ulto2b(data_len - 4, eid_ptr->page_length); 9485 /* 9486 * We support head of queue, ordered and simple tags. 9487 */ 9488 eid_ptr->flags2 = SVPD_EID_HEADSUP | SVPD_EID_ORDSUP | SVPD_EID_SIMPSUP; 9489 /* 9490 * Volatile cache supported. 9491 */ 9492 eid_ptr->flags3 = SVPD_EID_V_SUP; 9493 9494 /* 9495 * This means that we clear the REPORTED LUNS DATA HAS CHANGED unit 9496 * attention for a particular IT nexus on all LUNs once we report 9497 * it to that nexus once. This bit is required as of SPC-4. 9498 */ 9499 eid_ptr->flags4 = SVPD_EID_LUICLT; 9500 9501 /* 9502 * XXX KDM in order to correctly answer this, we would need 9503 * information from the SIM to determine how much sense data it 9504 * can send. So this would really be a path inquiry field, most 9505 * likely. This can be set to a maximum of 252 according to SPC-4, 9506 * but the hardware may or may not be able to support that much. 9507 * 0 just means that the maximum sense data length is not reported. 9508 */ 9509 eid_ptr->max_sense_length = 0; 9510 9511 ctl_set_success(ctsio); 9512 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9513 ctsio->be_move_done = ctl_config_move_done; 9514 ctl_datamove((union ctl_io *)ctsio); 9515 return (CTL_RETVAL_COMPLETE); 9516} 9517 9518static int 9519ctl_inquiry_evpd_mpp(struct ctl_scsiio *ctsio, int alloc_len) 9520{ 9521 struct scsi_vpd_mode_page_policy *mpp_ptr; 9522 struct ctl_lun *lun; 9523 int data_len; 9524 9525 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9526 9527 data_len = sizeof(struct scsi_vpd_mode_page_policy) + 9528 sizeof(struct scsi_vpd_mode_page_policy_descr); 9529 9530 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9531 mpp_ptr = (struct scsi_vpd_mode_page_policy *)ctsio->kern_data_ptr; 9532 ctsio->kern_sg_entries = 0; 9533 9534 if (data_len < alloc_len) { 9535 ctsio->residual = alloc_len - data_len; 9536 ctsio->kern_data_len = data_len; 9537 ctsio->kern_total_len = data_len; 9538 } else { 9539 ctsio->residual = 0; 9540 ctsio->kern_data_len = alloc_len; 9541 ctsio->kern_total_len = alloc_len; 9542 } 9543 ctsio->kern_data_resid = 0; 9544 ctsio->kern_rel_offset = 0; 9545 ctsio->kern_sg_entries = 0; 9546 9547 /* 9548 * The control device is always connected. The disk device, on the 9549 * other hand, may not be online all the time. 9550 */ 9551 if (lun != NULL) 9552 mpp_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9553 lun->be_lun->lun_type; 9554 else 9555 mpp_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9556 mpp_ptr->page_code = SVPD_MODE_PAGE_POLICY; 9557 scsi_ulto2b(data_len - 4, mpp_ptr->page_length); 9558 mpp_ptr->descr[0].page_code = 0x3f; 9559 mpp_ptr->descr[0].subpage_code = 0xff; 9560 mpp_ptr->descr[0].policy = SVPD_MPP_SHARED; 9561 9562 ctl_set_success(ctsio); 9563 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9564 ctsio->be_move_done = ctl_config_move_done; 9565 ctl_datamove((union ctl_io *)ctsio); 9566 return (CTL_RETVAL_COMPLETE); 9567} 9568 9569/* 9570 * SCSI VPD page 0x83, the Device Identification page. 9571 */ 9572static int 9573ctl_inquiry_evpd_devid(struct ctl_scsiio *ctsio, int alloc_len) 9574{ 9575 struct scsi_vpd_device_id *devid_ptr; 9576 struct scsi_vpd_id_descriptor *desc; 9577 struct ctl_softc *softc; 9578 struct ctl_lun *lun; 9579 struct ctl_port *port; 9580 int data_len; 9581 uint8_t proto; 9582 9583 softc = control_softc; 9584 9585 port = ctl_io_port(&ctsio->io_hdr); 9586 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9587 9588 data_len = sizeof(struct scsi_vpd_device_id) + 9589 sizeof(struct scsi_vpd_id_descriptor) + 9590 sizeof(struct scsi_vpd_id_rel_trgt_port_id) + 9591 sizeof(struct scsi_vpd_id_descriptor) + 9592 sizeof(struct scsi_vpd_id_trgt_port_grp_id); 9593 if (lun && lun->lun_devid) 9594 data_len += lun->lun_devid->len; 9595 if (port && port->port_devid) 9596 data_len += port->port_devid->len; 9597 if (port && port->target_devid) 9598 data_len += port->target_devid->len; 9599 9600 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9601 devid_ptr = (struct scsi_vpd_device_id *)ctsio->kern_data_ptr; 9602 ctsio->kern_sg_entries = 0; 9603 9604 if (data_len < alloc_len) { 9605 ctsio->residual = alloc_len - data_len; 9606 ctsio->kern_data_len = data_len; 9607 ctsio->kern_total_len = data_len; 9608 } else { 9609 ctsio->residual = 0; 9610 ctsio->kern_data_len = alloc_len; 9611 ctsio->kern_total_len = alloc_len; 9612 } 9613 ctsio->kern_data_resid = 0; 9614 ctsio->kern_rel_offset = 0; 9615 ctsio->kern_sg_entries = 0; 9616 9617 /* 9618 * The control device is always connected. The disk device, on the 9619 * other hand, may not be online all the time. 9620 */ 9621 if (lun != NULL) 9622 devid_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9623 lun->be_lun->lun_type; 9624 else 9625 devid_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9626 devid_ptr->page_code = SVPD_DEVICE_ID; 9627 scsi_ulto2b(data_len - 4, devid_ptr->length); 9628 9629 if (port && port->port_type == CTL_PORT_FC) 9630 proto = SCSI_PROTO_FC << 4; 9631 else if (port && port->port_type == CTL_PORT_ISCSI) 9632 proto = SCSI_PROTO_ISCSI << 4; 9633 else 9634 proto = SCSI_PROTO_SPI << 4; 9635 desc = (struct scsi_vpd_id_descriptor *)devid_ptr->desc_list; 9636 9637 /* 9638 * We're using a LUN association here. i.e., this device ID is a 9639 * per-LUN identifier. 9640 */ 9641 if (lun && lun->lun_devid) { 9642 memcpy(desc, lun->lun_devid->data, lun->lun_devid->len); 9643 desc = (struct scsi_vpd_id_descriptor *)((uint8_t *)desc + 9644 lun->lun_devid->len); 9645 } 9646 9647 /* 9648 * This is for the WWPN which is a port association. 9649 */ 9650 if (port && port->port_devid) { 9651 memcpy(desc, port->port_devid->data, port->port_devid->len); 9652 desc = (struct scsi_vpd_id_descriptor *)((uint8_t *)desc + 9653 port->port_devid->len); 9654 } 9655 9656 /* 9657 * This is for the Relative Target Port(type 4h) identifier 9658 */ 9659 desc->proto_codeset = proto | SVPD_ID_CODESET_BINARY; 9660 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_PORT | 9661 SVPD_ID_TYPE_RELTARG; 9662 desc->length = 4; 9663 scsi_ulto2b(ctsio->io_hdr.nexus.targ_port, &desc->identifier[2]); 9664 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 9665 sizeof(struct scsi_vpd_id_rel_trgt_port_id)); 9666 9667 /* 9668 * This is for the Target Port Group(type 5h) identifier 9669 */ 9670 desc->proto_codeset = proto | SVPD_ID_CODESET_BINARY; 9671 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_PORT | 9672 SVPD_ID_TYPE_TPORTGRP; 9673 desc->length = 4; 9674 scsi_ulto2b(ctsio->io_hdr.nexus.targ_port / softc->port_cnt + 1, 9675 &desc->identifier[2]); 9676 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 9677 sizeof(struct scsi_vpd_id_trgt_port_grp_id)); 9678 9679 /* 9680 * This is for the Target identifier 9681 */ 9682 if (port && port->target_devid) { 9683 memcpy(desc, port->target_devid->data, port->target_devid->len); 9684 } 9685 9686 ctl_set_success(ctsio); 9687 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9688 ctsio->be_move_done = ctl_config_move_done; 9689 ctl_datamove((union ctl_io *)ctsio); 9690 return (CTL_RETVAL_COMPLETE); 9691} 9692 9693static int 9694ctl_inquiry_evpd_scsi_ports(struct ctl_scsiio *ctsio, int alloc_len) 9695{ 9696 struct ctl_softc *softc = control_softc; 9697 struct scsi_vpd_scsi_ports *sp; 9698 struct scsi_vpd_port_designation *pd; 9699 struct scsi_vpd_port_designation_cont *pdc; 9700 struct ctl_lun *lun; 9701 struct ctl_port *port; 9702 int data_len, num_target_ports, iid_len, id_len; 9703 9704 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9705 9706 num_target_ports = 0; 9707 iid_len = 0; 9708 id_len = 0; 9709 mtx_lock(&softc->ctl_lock); 9710 STAILQ_FOREACH(port, &softc->port_list, links) { 9711 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 9712 continue; 9713 if (lun != NULL && 9714 ctl_lun_map_to_port(port, lun->lun) >= CTL_MAX_LUNS) 9715 continue; 9716 num_target_ports++; 9717 if (port->init_devid) 9718 iid_len += port->init_devid->len; 9719 if (port->port_devid) 9720 id_len += port->port_devid->len; 9721 } 9722 mtx_unlock(&softc->ctl_lock); 9723 9724 data_len = sizeof(struct scsi_vpd_scsi_ports) + 9725 num_target_ports * (sizeof(struct scsi_vpd_port_designation) + 9726 sizeof(struct scsi_vpd_port_designation_cont)) + iid_len + id_len; 9727 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9728 sp = (struct scsi_vpd_scsi_ports *)ctsio->kern_data_ptr; 9729 ctsio->kern_sg_entries = 0; 9730 9731 if (data_len < alloc_len) { 9732 ctsio->residual = alloc_len - data_len; 9733 ctsio->kern_data_len = data_len; 9734 ctsio->kern_total_len = data_len; 9735 } else { 9736 ctsio->residual = 0; 9737 ctsio->kern_data_len = alloc_len; 9738 ctsio->kern_total_len = alloc_len; 9739 } 9740 ctsio->kern_data_resid = 0; 9741 ctsio->kern_rel_offset = 0; 9742 ctsio->kern_sg_entries = 0; 9743 9744 /* 9745 * The control device is always connected. The disk device, on the 9746 * other hand, may not be online all the time. Need to change this 9747 * to figure out whether the disk device is actually online or not. 9748 */ 9749 if (lun != NULL) 9750 sp->device = (SID_QUAL_LU_CONNECTED << 5) | 9751 lun->be_lun->lun_type; 9752 else 9753 sp->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9754 9755 sp->page_code = SVPD_SCSI_PORTS; 9756 scsi_ulto2b(data_len - sizeof(struct scsi_vpd_scsi_ports), 9757 sp->page_length); 9758 pd = &sp->design[0]; 9759 9760 mtx_lock(&softc->ctl_lock); 9761 STAILQ_FOREACH(port, &softc->port_list, links) { 9762 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 9763 continue; 9764 if (lun != NULL && 9765 ctl_lun_map_to_port(port, lun->lun) >= CTL_MAX_LUNS) 9766 continue; 9767 scsi_ulto2b(port->targ_port, pd->relative_port_id); 9768 if (port->init_devid) { 9769 iid_len = port->init_devid->len; 9770 memcpy(pd->initiator_transportid, 9771 port->init_devid->data, port->init_devid->len); 9772 } else 9773 iid_len = 0; 9774 scsi_ulto2b(iid_len, pd->initiator_transportid_length); 9775 pdc = (struct scsi_vpd_port_designation_cont *) 9776 (&pd->initiator_transportid[iid_len]); 9777 if (port->port_devid) { 9778 id_len = port->port_devid->len; 9779 memcpy(pdc->target_port_descriptors, 9780 port->port_devid->data, port->port_devid->len); 9781 } else 9782 id_len = 0; 9783 scsi_ulto2b(id_len, pdc->target_port_descriptors_length); 9784 pd = (struct scsi_vpd_port_designation *) 9785 ((uint8_t *)pdc->target_port_descriptors + id_len); 9786 } 9787 mtx_unlock(&softc->ctl_lock); 9788 9789 ctl_set_success(ctsio); 9790 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9791 ctsio->be_move_done = ctl_config_move_done; 9792 ctl_datamove((union ctl_io *)ctsio); 9793 return (CTL_RETVAL_COMPLETE); 9794} 9795 9796static int 9797ctl_inquiry_evpd_block_limits(struct ctl_scsiio *ctsio, int alloc_len) 9798{ 9799 struct scsi_vpd_block_limits *bl_ptr; 9800 struct ctl_lun *lun; 9801 9802 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9803 9804 ctsio->kern_data_ptr = malloc(sizeof(*bl_ptr), M_CTL, M_WAITOK | M_ZERO); 9805 bl_ptr = (struct scsi_vpd_block_limits *)ctsio->kern_data_ptr; 9806 ctsio->kern_sg_entries = 0; 9807 9808 if (sizeof(*bl_ptr) < alloc_len) { 9809 ctsio->residual = alloc_len - sizeof(*bl_ptr); 9810 ctsio->kern_data_len = sizeof(*bl_ptr); 9811 ctsio->kern_total_len = sizeof(*bl_ptr); 9812 } else { 9813 ctsio->residual = 0; 9814 ctsio->kern_data_len = alloc_len; 9815 ctsio->kern_total_len = alloc_len; 9816 } 9817 ctsio->kern_data_resid = 0; 9818 ctsio->kern_rel_offset = 0; 9819 ctsio->kern_sg_entries = 0; 9820 9821 /* 9822 * The control device is always connected. The disk device, on the 9823 * other hand, may not be online all the time. Need to change this 9824 * to figure out whether the disk device is actually online or not. 9825 */ 9826 if (lun != NULL) 9827 bl_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9828 lun->be_lun->lun_type; 9829 else 9830 bl_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9831 9832 bl_ptr->page_code = SVPD_BLOCK_LIMITS; 9833 scsi_ulto2b(sizeof(*bl_ptr) - 4, bl_ptr->page_length); 9834 bl_ptr->max_cmp_write_len = 0xff; 9835 scsi_ulto4b(0xffffffff, bl_ptr->max_txfer_len); 9836 if (lun != NULL) { 9837 scsi_ulto4b(lun->be_lun->opttxferlen, bl_ptr->opt_txfer_len); 9838 if (lun->be_lun->flags & CTL_LUN_FLAG_UNMAP) { 9839 scsi_ulto4b(0xffffffff, bl_ptr->max_unmap_lba_cnt); 9840 scsi_ulto4b(0xffffffff, bl_ptr->max_unmap_blk_cnt); 9841 if (lun->be_lun->ublockexp != 0) { 9842 scsi_ulto4b((1 << lun->be_lun->ublockexp), 9843 bl_ptr->opt_unmap_grain); 9844 scsi_ulto4b(0x80000000 | lun->be_lun->ublockoff, 9845 bl_ptr->unmap_grain_align); 9846 } 9847 } 9848 scsi_ulto4b(lun->be_lun->atomicblock, 9849 bl_ptr->max_atomic_transfer_length); 9850 scsi_ulto4b(0, bl_ptr->atomic_alignment); 9851 scsi_ulto4b(0, bl_ptr->atomic_transfer_length_granularity); 9852 scsi_ulto4b(0, bl_ptr->max_atomic_transfer_length_with_atomic_boundary); 9853 scsi_ulto4b(0, bl_ptr->max_atomic_boundary_size); 9854 } 9855 scsi_u64to8b(UINT64_MAX, bl_ptr->max_write_same_length); 9856 9857 ctl_set_success(ctsio); 9858 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9859 ctsio->be_move_done = ctl_config_move_done; 9860 ctl_datamove((union ctl_io *)ctsio); 9861 return (CTL_RETVAL_COMPLETE); 9862} 9863 9864static int 9865ctl_inquiry_evpd_bdc(struct ctl_scsiio *ctsio, int alloc_len) 9866{ 9867 struct scsi_vpd_block_device_characteristics *bdc_ptr; 9868 struct ctl_lun *lun; 9869 const char *value; 9870 u_int i; 9871 9872 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9873 9874 ctsio->kern_data_ptr = malloc(sizeof(*bdc_ptr), M_CTL, M_WAITOK | M_ZERO); 9875 bdc_ptr = (struct scsi_vpd_block_device_characteristics *)ctsio->kern_data_ptr; 9876 ctsio->kern_sg_entries = 0; 9877 9878 if (sizeof(*bdc_ptr) < alloc_len) { 9879 ctsio->residual = alloc_len - sizeof(*bdc_ptr); 9880 ctsio->kern_data_len = sizeof(*bdc_ptr); 9881 ctsio->kern_total_len = sizeof(*bdc_ptr); 9882 } else { 9883 ctsio->residual = 0; 9884 ctsio->kern_data_len = alloc_len; 9885 ctsio->kern_total_len = alloc_len; 9886 } 9887 ctsio->kern_data_resid = 0; 9888 ctsio->kern_rel_offset = 0; 9889 ctsio->kern_sg_entries = 0; 9890 9891 /* 9892 * The control device is always connected. The disk device, on the 9893 * other hand, may not be online all the time. Need to change this 9894 * to figure out whether the disk device is actually online or not. 9895 */ 9896 if (lun != NULL) 9897 bdc_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9898 lun->be_lun->lun_type; 9899 else 9900 bdc_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9901 bdc_ptr->page_code = SVPD_BDC; 9902 scsi_ulto2b(sizeof(*bdc_ptr) - 4, bdc_ptr->page_length); 9903 if (lun != NULL && 9904 (value = ctl_get_opt(&lun->be_lun->options, "rpm")) != NULL) 9905 i = strtol(value, NULL, 0); 9906 else 9907 i = CTL_DEFAULT_ROTATION_RATE; 9908 scsi_ulto2b(i, bdc_ptr->medium_rotation_rate); 9909 if (lun != NULL && 9910 (value = ctl_get_opt(&lun->be_lun->options, "formfactor")) != NULL) 9911 i = strtol(value, NULL, 0); 9912 else 9913 i = 0; 9914 bdc_ptr->wab_wac_ff = (i & 0x0f); 9915 bdc_ptr->flags = SVPD_FUAB | SVPD_VBULS; 9916 9917 ctl_set_success(ctsio); 9918 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9919 ctsio->be_move_done = ctl_config_move_done; 9920 ctl_datamove((union ctl_io *)ctsio); 9921 return (CTL_RETVAL_COMPLETE); 9922} 9923 9924static int 9925ctl_inquiry_evpd_lbp(struct ctl_scsiio *ctsio, int alloc_len) 9926{ 9927 struct scsi_vpd_logical_block_prov *lbp_ptr; 9928 struct ctl_lun *lun; 9929 9930 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9931 9932 ctsio->kern_data_ptr = malloc(sizeof(*lbp_ptr), M_CTL, M_WAITOK | M_ZERO); 9933 lbp_ptr = (struct scsi_vpd_logical_block_prov *)ctsio->kern_data_ptr; 9934 ctsio->kern_sg_entries = 0; 9935 9936 if (sizeof(*lbp_ptr) < alloc_len) { 9937 ctsio->residual = alloc_len - sizeof(*lbp_ptr); 9938 ctsio->kern_data_len = sizeof(*lbp_ptr); 9939 ctsio->kern_total_len = sizeof(*lbp_ptr); 9940 } else { 9941 ctsio->residual = 0; 9942 ctsio->kern_data_len = alloc_len; 9943 ctsio->kern_total_len = alloc_len; 9944 } 9945 ctsio->kern_data_resid = 0; 9946 ctsio->kern_rel_offset = 0; 9947 ctsio->kern_sg_entries = 0; 9948 9949 /* 9950 * The control device is always connected. The disk device, on the 9951 * other hand, may not be online all the time. Need to change this 9952 * to figure out whether the disk device is actually online or not. 9953 */ 9954 if (lun != NULL) 9955 lbp_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9956 lun->be_lun->lun_type; 9957 else 9958 lbp_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9959 9960 lbp_ptr->page_code = SVPD_LBP; 9961 scsi_ulto2b(sizeof(*lbp_ptr) - 4, lbp_ptr->page_length); 9962 lbp_ptr->threshold_exponent = CTL_LBP_EXPONENT; 9963 if (lun != NULL && lun->be_lun->flags & CTL_LUN_FLAG_UNMAP) { 9964 lbp_ptr->flags = SVPD_LBP_UNMAP | SVPD_LBP_WS16 | 9965 SVPD_LBP_WS10 | SVPD_LBP_RZ | SVPD_LBP_ANC_SUP; 9966 lbp_ptr->prov_type = SVPD_LBP_THIN; 9967 } 9968 9969 ctl_set_success(ctsio); 9970 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9971 ctsio->be_move_done = ctl_config_move_done; 9972 ctl_datamove((union ctl_io *)ctsio); 9973 return (CTL_RETVAL_COMPLETE); 9974} 9975 9976/* 9977 * INQUIRY with the EVPD bit set. 9978 */ 9979static int 9980ctl_inquiry_evpd(struct ctl_scsiio *ctsio) 9981{ 9982 struct ctl_lun *lun; 9983 struct scsi_inquiry *cdb; 9984 int alloc_len, retval; 9985 9986 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9987 cdb = (struct scsi_inquiry *)ctsio->cdb; 9988 alloc_len = scsi_2btoul(cdb->length); 9989 9990 switch (cdb->page_code) { 9991 case SVPD_SUPPORTED_PAGES: 9992 retval = ctl_inquiry_evpd_supported(ctsio, alloc_len); 9993 break; 9994 case SVPD_UNIT_SERIAL_NUMBER: 9995 retval = ctl_inquiry_evpd_serial(ctsio, alloc_len); 9996 break; 9997 case SVPD_DEVICE_ID: 9998 retval = ctl_inquiry_evpd_devid(ctsio, alloc_len); 9999 break; 10000 case SVPD_EXTENDED_INQUIRY_DATA: 10001 retval = ctl_inquiry_evpd_eid(ctsio, alloc_len); 10002 break; 10003 case SVPD_MODE_PAGE_POLICY: 10004 retval = ctl_inquiry_evpd_mpp(ctsio, alloc_len); 10005 break; 10006 case SVPD_SCSI_PORTS: 10007 retval = ctl_inquiry_evpd_scsi_ports(ctsio, alloc_len); 10008 break; 10009 case SVPD_SCSI_TPC: 10010 retval = ctl_inquiry_evpd_tpc(ctsio, alloc_len); 10011 break; 10012 case SVPD_BLOCK_LIMITS: 10013 if (lun == NULL || lun->be_lun->lun_type != T_DIRECT) 10014 goto err; 10015 retval = ctl_inquiry_evpd_block_limits(ctsio, alloc_len); 10016 break; 10017 case SVPD_BDC: 10018 if (lun == NULL || lun->be_lun->lun_type != T_DIRECT) 10019 goto err; 10020 retval = ctl_inquiry_evpd_bdc(ctsio, alloc_len); 10021 break; 10022 case SVPD_LBP: 10023 if (lun == NULL || lun->be_lun->lun_type != T_DIRECT) 10024 goto err; 10025 retval = ctl_inquiry_evpd_lbp(ctsio, alloc_len); 10026 break; 10027 default: 10028err: 10029 ctl_set_invalid_field(ctsio, 10030 /*sks_valid*/ 1, 10031 /*command*/ 1, 10032 /*field*/ 2, 10033 /*bit_valid*/ 0, 10034 /*bit*/ 0); 10035 ctl_done((union ctl_io *)ctsio); 10036 retval = CTL_RETVAL_COMPLETE; 10037 break; 10038 } 10039 10040 return (retval); 10041} 10042 10043/* 10044 * Standard INQUIRY data. 10045 */ 10046static int 10047ctl_inquiry_std(struct ctl_scsiio *ctsio) 10048{ 10049 struct scsi_inquiry_data *inq_ptr; 10050 struct scsi_inquiry *cdb; 10051 struct ctl_softc *softc = control_softc; 10052 struct ctl_port *port; 10053 struct ctl_lun *lun; 10054 char *val; 10055 uint32_t alloc_len, data_len; 10056 ctl_port_type port_type; 10057 10058 port = ctl_io_port(&ctsio->io_hdr); 10059 port_type = port->port_type; 10060 if (port_type == CTL_PORT_IOCTL || port_type == CTL_PORT_INTERNAL) 10061 port_type = CTL_PORT_SCSI; 10062 10063 lun = ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10064 cdb = (struct scsi_inquiry *)ctsio->cdb; 10065 alloc_len = scsi_2btoul(cdb->length); 10066 10067 /* 10068 * We malloc the full inquiry data size here and fill it 10069 * in. If the user only asks for less, we'll give him 10070 * that much. 10071 */ 10072 data_len = offsetof(struct scsi_inquiry_data, vendor_specific1); 10073 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 10074 inq_ptr = (struct scsi_inquiry_data *)ctsio->kern_data_ptr; 10075 ctsio->kern_sg_entries = 0; 10076 ctsio->kern_data_resid = 0; 10077 ctsio->kern_rel_offset = 0; 10078 10079 if (data_len < alloc_len) { 10080 ctsio->residual = alloc_len - data_len; 10081 ctsio->kern_data_len = data_len; 10082 ctsio->kern_total_len = data_len; 10083 } else { 10084 ctsio->residual = 0; 10085 ctsio->kern_data_len = alloc_len; 10086 ctsio->kern_total_len = alloc_len; 10087 } 10088 10089 if (lun != NULL) { 10090 if ((lun->flags & CTL_LUN_PRIMARY_SC) || 10091 softc->ha_link >= CTL_HA_LINK_UNKNOWN) { 10092 inq_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10093 lun->be_lun->lun_type; 10094 } else { 10095 inq_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | 10096 lun->be_lun->lun_type; 10097 } 10098 if (lun->flags & CTL_LUN_REMOVABLE) 10099 inq_ptr->dev_qual2 |= SID_RMB; 10100 } else 10101 inq_ptr->device = (SID_QUAL_BAD_LU << 5) | T_NODEVICE; 10102 10103 /* RMB in byte 2 is 0 */ 10104 inq_ptr->version = SCSI_REV_SPC4; 10105 10106 /* 10107 * According to SAM-3, even if a device only supports a single 10108 * level of LUN addressing, it should still set the HISUP bit: 10109 * 10110 * 4.9.1 Logical unit numbers overview 10111 * 10112 * All logical unit number formats described in this standard are 10113 * hierarchical in structure even when only a single level in that 10114 * hierarchy is used. The HISUP bit shall be set to one in the 10115 * standard INQUIRY data (see SPC-2) when any logical unit number 10116 * format described in this standard is used. Non-hierarchical 10117 * formats are outside the scope of this standard. 10118 * 10119 * Therefore we set the HiSup bit here. 10120 * 10121 * The reponse format is 2, per SPC-3. 10122 */ 10123 inq_ptr->response_format = SID_HiSup | 2; 10124 10125 inq_ptr->additional_length = data_len - 10126 (offsetof(struct scsi_inquiry_data, additional_length) + 1); 10127 CTL_DEBUG_PRINT(("additional_length = %d\n", 10128 inq_ptr->additional_length)); 10129 10130 inq_ptr->spc3_flags = SPC3_SID_3PC | SPC3_SID_TPGS_IMPLICIT; 10131 if (port_type == CTL_PORT_SCSI) 10132 inq_ptr->spc2_flags = SPC2_SID_ADDR16; 10133 inq_ptr->spc2_flags |= SPC2_SID_MultiP; 10134 inq_ptr->flags = SID_CmdQue; 10135 if (port_type == CTL_PORT_SCSI) 10136 inq_ptr->flags |= SID_WBus16 | SID_Sync; 10137 10138 /* 10139 * Per SPC-3, unused bytes in ASCII strings are filled with spaces. 10140 * We have 8 bytes for the vendor name, and 16 bytes for the device 10141 * name and 4 bytes for the revision. 10142 */ 10143 if (lun == NULL || (val = ctl_get_opt(&lun->be_lun->options, 10144 "vendor")) == NULL) { 10145 strncpy(inq_ptr->vendor, CTL_VENDOR, sizeof(inq_ptr->vendor)); 10146 } else { 10147 memset(inq_ptr->vendor, ' ', sizeof(inq_ptr->vendor)); 10148 strncpy(inq_ptr->vendor, val, 10149 min(sizeof(inq_ptr->vendor), strlen(val))); 10150 } 10151 if (lun == NULL) { 10152 strncpy(inq_ptr->product, CTL_DIRECT_PRODUCT, 10153 sizeof(inq_ptr->product)); 10154 } else if ((val = ctl_get_opt(&lun->be_lun->options, "product")) == NULL) { 10155 switch (lun->be_lun->lun_type) { 10156 case T_DIRECT: 10157 strncpy(inq_ptr->product, CTL_DIRECT_PRODUCT, 10158 sizeof(inq_ptr->product)); 10159 break; 10160 case T_PROCESSOR: 10161 strncpy(inq_ptr->product, CTL_PROCESSOR_PRODUCT, 10162 sizeof(inq_ptr->product)); 10163 break; 10164 case T_CDROM: 10165 strncpy(inq_ptr->product, CTL_CDROM_PRODUCT, 10166 sizeof(inq_ptr->product)); 10167 break; 10168 default: 10169 strncpy(inq_ptr->product, CTL_UNKNOWN_PRODUCT, 10170 sizeof(inq_ptr->product)); 10171 break; 10172 } 10173 } else { 10174 memset(inq_ptr->product, ' ', sizeof(inq_ptr->product)); 10175 strncpy(inq_ptr->product, val, 10176 min(sizeof(inq_ptr->product), strlen(val))); 10177 } 10178 10179 /* 10180 * XXX make this a macro somewhere so it automatically gets 10181 * incremented when we make changes. 10182 */ 10183 if (lun == NULL || (val = ctl_get_opt(&lun->be_lun->options, 10184 "revision")) == NULL) { 10185 strncpy(inq_ptr->revision, "0001", sizeof(inq_ptr->revision)); 10186 } else { 10187 memset(inq_ptr->revision, ' ', sizeof(inq_ptr->revision)); 10188 strncpy(inq_ptr->revision, val, 10189 min(sizeof(inq_ptr->revision), strlen(val))); 10190 } 10191 10192 /* 10193 * For parallel SCSI, we support double transition and single 10194 * transition clocking. We also support QAS (Quick Arbitration 10195 * and Selection) and Information Unit transfers on both the 10196 * control and array devices. 10197 */ 10198 if (port_type == CTL_PORT_SCSI) 10199 inq_ptr->spi3data = SID_SPI_CLOCK_DT_ST | SID_SPI_QAS | 10200 SID_SPI_IUS; 10201 10202 /* SAM-5 (no version claimed) */ 10203 scsi_ulto2b(0x00A0, inq_ptr->version1); 10204 /* SPC-4 (no version claimed) */ 10205 scsi_ulto2b(0x0460, inq_ptr->version2); 10206 if (port_type == CTL_PORT_FC) { 10207 /* FCP-2 ANSI INCITS.350:2003 */ 10208 scsi_ulto2b(0x0917, inq_ptr->version3); 10209 } else if (port_type == CTL_PORT_SCSI) { 10210 /* SPI-4 ANSI INCITS.362:200x */ 10211 scsi_ulto2b(0x0B56, inq_ptr->version3); 10212 } else if (port_type == CTL_PORT_ISCSI) { 10213 /* iSCSI (no version claimed) */ 10214 scsi_ulto2b(0x0960, inq_ptr->version3); 10215 } else if (port_type == CTL_PORT_SAS) { 10216 /* SAS (no version claimed) */ 10217 scsi_ulto2b(0x0BE0, inq_ptr->version3); 10218 } 10219 10220 if (lun == NULL) { 10221 /* SBC-4 (no version claimed) */ 10222 scsi_ulto2b(0x0600, inq_ptr->version4); 10223 } else { 10224 switch (lun->be_lun->lun_type) { 10225 case T_DIRECT: 10226 /* SBC-4 (no version claimed) */ 10227 scsi_ulto2b(0x0600, inq_ptr->version4); 10228 break; 10229 case T_PROCESSOR: 10230 break; 10231 case T_CDROM: 10232 /* MMC-6 (no version claimed) */ 10233 scsi_ulto2b(0x04E0, inq_ptr->version4); 10234 break; 10235 default: 10236 break; 10237 } 10238 } 10239 10240 ctl_set_success(ctsio); 10241 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10242 ctsio->be_move_done = ctl_config_move_done; 10243 ctl_datamove((union ctl_io *)ctsio); 10244 return (CTL_RETVAL_COMPLETE); 10245} 10246 10247int 10248ctl_inquiry(struct ctl_scsiio *ctsio) 10249{ 10250 struct scsi_inquiry *cdb; 10251 int retval; 10252 10253 CTL_DEBUG_PRINT(("ctl_inquiry\n")); 10254 10255 cdb = (struct scsi_inquiry *)ctsio->cdb; 10256 if (cdb->byte2 & SI_EVPD) 10257 retval = ctl_inquiry_evpd(ctsio); 10258 else if (cdb->page_code == 0) 10259 retval = ctl_inquiry_std(ctsio); 10260 else { 10261 ctl_set_invalid_field(ctsio, 10262 /*sks_valid*/ 1, 10263 /*command*/ 1, 10264 /*field*/ 2, 10265 /*bit_valid*/ 0, 10266 /*bit*/ 0); 10267 ctl_done((union ctl_io *)ctsio); 10268 return (CTL_RETVAL_COMPLETE); 10269 } 10270 10271 return (retval); 10272} 10273 10274int 10275ctl_get_config(struct ctl_scsiio *ctsio) 10276{ 10277 struct scsi_get_config_header *hdr; 10278 struct scsi_get_config_feature *feature; 10279 struct scsi_get_config *cdb; 10280 struct ctl_lun *lun; 10281 uint32_t alloc_len, data_len; 10282 int rt, starting; 10283 10284 lun = ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10285 cdb = (struct scsi_get_config *)ctsio->cdb; 10286 rt = (cdb->rt & SGC_RT_MASK); 10287 starting = scsi_2btoul(cdb->starting_feature); 10288 alloc_len = scsi_2btoul(cdb->length); 10289 10290 data_len = sizeof(struct scsi_get_config_header) + 10291 sizeof(struct scsi_get_config_feature) + 8 + 10292 sizeof(struct scsi_get_config_feature) + 8 + 10293 sizeof(struct scsi_get_config_feature) + 4 + 10294 sizeof(struct scsi_get_config_feature) + 4 + 10295 sizeof(struct scsi_get_config_feature) + 8 + 10296 sizeof(struct scsi_get_config_feature) + 10297 sizeof(struct scsi_get_config_feature) + 4 + 10298 sizeof(struct scsi_get_config_feature) + 4 + 10299 sizeof(struct scsi_get_config_feature) + 4 + 10300 sizeof(struct scsi_get_config_feature) + 4 + 10301 sizeof(struct scsi_get_config_feature) + 4 + 10302 sizeof(struct scsi_get_config_feature) + 4; 10303 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 10304 ctsio->kern_sg_entries = 0; 10305 ctsio->kern_data_resid = 0; 10306 ctsio->kern_rel_offset = 0; 10307 10308 hdr = (struct scsi_get_config_header *)ctsio->kern_data_ptr; 10309 if (lun->flags & CTL_LUN_NO_MEDIA) 10310 scsi_ulto2b(0x0000, hdr->current_profile); 10311 else 10312 scsi_ulto2b(0x0010, hdr->current_profile); 10313 feature = (struct scsi_get_config_feature *)(hdr + 1); 10314 10315 if (starting > 0x003b) 10316 goto done; 10317 if (starting > 0x003a) 10318 goto f3b; 10319 if (starting > 0x002b) 10320 goto f3a; 10321 if (starting > 0x002a) 10322 goto f2b; 10323 if (starting > 0x001f) 10324 goto f2a; 10325 if (starting > 0x001e) 10326 goto f1f; 10327 if (starting > 0x001d) 10328 goto f1e; 10329 if (starting > 0x0010) 10330 goto f1d; 10331 if (starting > 0x0003) 10332 goto f10; 10333 if (starting > 0x0002) 10334 goto f3; 10335 if (starting > 0x0001) 10336 goto f2; 10337 if (starting > 0x0000) 10338 goto f1; 10339 10340 /* Profile List */ 10341 scsi_ulto2b(0x0000, feature->feature_code); 10342 feature->flags = SGC_F_PERSISTENT | SGC_F_CURRENT; 10343 feature->add_length = 8; 10344 scsi_ulto2b(0x0008, &feature->feature_data[0]); /* CD-ROM */ 10345 feature->feature_data[2] = 0x00; 10346 scsi_ulto2b(0x0010, &feature->feature_data[4]); /* DVD-ROM */ 10347 feature->feature_data[6] = 0x01; 10348 feature = (struct scsi_get_config_feature *) 10349 &feature->feature_data[feature->add_length]; 10350 10351f1: /* Core */ 10352 scsi_ulto2b(0x0001, feature->feature_code); 10353 feature->flags = 0x08 | SGC_F_PERSISTENT | SGC_F_CURRENT; 10354 feature->add_length = 8; 10355 scsi_ulto4b(0x00000000, &feature->feature_data[0]); 10356 feature->feature_data[4] = 0x03; 10357 feature = (struct scsi_get_config_feature *) 10358 &feature->feature_data[feature->add_length]; 10359 10360f2: /* Morphing */ 10361 scsi_ulto2b(0x0002, feature->feature_code); 10362 feature->flags = 0x04 | SGC_F_PERSISTENT | SGC_F_CURRENT; 10363 feature->add_length = 4; 10364 feature->feature_data[0] = 0x02; 10365 feature = (struct scsi_get_config_feature *) 10366 &feature->feature_data[feature->add_length]; 10367 10368f3: /* Removable Medium */ 10369 scsi_ulto2b(0x0003, feature->feature_code); 10370 feature->flags = 0x04 | SGC_F_PERSISTENT | SGC_F_CURRENT; 10371 feature->add_length = 4; 10372 feature->feature_data[0] = 0x39; 10373 feature = (struct scsi_get_config_feature *) 10374 &feature->feature_data[feature->add_length]; 10375 10376 if (rt == SGC_RT_CURRENT && (lun->flags & CTL_LUN_NO_MEDIA)) 10377 goto done; 10378 10379f10: /* Random Read */ 10380 scsi_ulto2b(0x0010, feature->feature_code); 10381 feature->flags = 0x00; 10382 if ((lun->flags & CTL_LUN_NO_MEDIA) == 0) 10383 feature->flags |= SGC_F_CURRENT; 10384 feature->add_length = 8; 10385 scsi_ulto4b(lun->be_lun->blocksize, &feature->feature_data[0]); 10386 scsi_ulto2b(1, &feature->feature_data[4]); 10387 feature->feature_data[6] = 0x00; 10388 feature = (struct scsi_get_config_feature *) 10389 &feature->feature_data[feature->add_length]; 10390 10391f1d: /* Multi-Read */ 10392 scsi_ulto2b(0x001D, feature->feature_code); 10393 feature->flags = 0x00; 10394 if ((lun->flags & CTL_LUN_NO_MEDIA) == 0) 10395 feature->flags |= SGC_F_CURRENT; 10396 feature->add_length = 0; 10397 feature = (struct scsi_get_config_feature *) 10398 &feature->feature_data[feature->add_length]; 10399 10400f1e: /* CD Read */ 10401 scsi_ulto2b(0x001E, feature->feature_code); 10402 feature->flags = 0x00; 10403 if ((lun->flags & CTL_LUN_NO_MEDIA) == 0) 10404 feature->flags |= SGC_F_CURRENT; 10405 feature->add_length = 4; 10406 feature->feature_data[0] = 0x00; 10407 feature = (struct scsi_get_config_feature *) 10408 &feature->feature_data[feature->add_length]; 10409 10410f1f: /* DVD Read */ 10411 scsi_ulto2b(0x001F, feature->feature_code); 10412 feature->flags = 0x08; 10413 if ((lun->flags & CTL_LUN_NO_MEDIA) == 0) 10414 feature->flags |= SGC_F_CURRENT; 10415 feature->add_length = 4; 10416 feature->feature_data[0] = 0x01; 10417 feature->feature_data[2] = 0x03; 10418 feature = (struct scsi_get_config_feature *) 10419 &feature->feature_data[feature->add_length]; 10420 10421f2a: /* DVD+RW */ 10422 scsi_ulto2b(0x002A, feature->feature_code); 10423 feature->flags = 0x04; 10424 if ((lun->flags & CTL_LUN_NO_MEDIA) == 0) 10425 feature->flags |= SGC_F_CURRENT; 10426 feature->add_length = 4; 10427 feature->feature_data[0] = 0x00; 10428 feature->feature_data[1] = 0x00; 10429 feature = (struct scsi_get_config_feature *) 10430 &feature->feature_data[feature->add_length]; 10431 10432f2b: /* DVD+R */ 10433 scsi_ulto2b(0x002B, feature->feature_code); 10434 feature->flags = 0x00; 10435 if ((lun->flags & CTL_LUN_NO_MEDIA) == 0) 10436 feature->flags |= SGC_F_CURRENT; 10437 feature->add_length = 4; 10438 feature->feature_data[0] = 0x00; 10439 feature = (struct scsi_get_config_feature *) 10440 &feature->feature_data[feature->add_length]; 10441 10442f3a: /* DVD+RW Dual Layer */ 10443 scsi_ulto2b(0x003A, feature->feature_code); 10444 feature->flags = 0x00; 10445 if ((lun->flags & CTL_LUN_NO_MEDIA) == 0) 10446 feature->flags |= SGC_F_CURRENT; 10447 feature->add_length = 4; 10448 feature->feature_data[0] = 0x00; 10449 feature->feature_data[1] = 0x00; 10450 feature = (struct scsi_get_config_feature *) 10451 &feature->feature_data[feature->add_length]; 10452 10453f3b: /* DVD+R Dual Layer */ 10454 scsi_ulto2b(0x003B, feature->feature_code); 10455 feature->flags = 0x00; 10456 if ((lun->flags & CTL_LUN_NO_MEDIA) == 0) 10457 feature->flags |= SGC_F_CURRENT; 10458 feature->add_length = 4; 10459 feature->feature_data[0] = 0x00; 10460 feature = (struct scsi_get_config_feature *) 10461 &feature->feature_data[feature->add_length]; 10462 10463done: 10464 data_len = (uint8_t *)feature - (uint8_t *)hdr; 10465 if (rt == SGC_RT_SPECIFIC && data_len > 4) { 10466 feature = (struct scsi_get_config_feature *)(hdr + 1); 10467 if (scsi_2btoul(feature->feature_code) == starting) 10468 feature = (struct scsi_get_config_feature *) 10469 &feature->feature_data[feature->add_length]; 10470 data_len = (uint8_t *)feature - (uint8_t *)hdr; 10471 } 10472 scsi_ulto4b(data_len - 4, hdr->data_length); 10473 if (data_len < alloc_len) { 10474 ctsio->residual = alloc_len - data_len; 10475 ctsio->kern_data_len = data_len; 10476 ctsio->kern_total_len = data_len; 10477 } else { 10478 ctsio->residual = 0; 10479 ctsio->kern_data_len = alloc_len; 10480 ctsio->kern_total_len = alloc_len; 10481 } 10482 10483 ctl_set_success(ctsio); 10484 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10485 ctsio->be_move_done = ctl_config_move_done; 10486 ctl_datamove((union ctl_io *)ctsio); 10487 return (CTL_RETVAL_COMPLETE); 10488} 10489 10490int 10491ctl_get_event_status(struct ctl_scsiio *ctsio) 10492{ 10493 struct scsi_get_event_status_header *hdr; 10494 struct scsi_get_event_status *cdb; 10495 struct ctl_lun *lun; 10496 uint32_t alloc_len, data_len; 10497 int notif_class; 10498 10499 lun = ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10500 cdb = (struct scsi_get_event_status *)ctsio->cdb; 10501 if ((cdb->byte2 & SGESN_POLLED) == 0) { 10502 ctl_set_invalid_field(ctsio, /*sks_valid*/ 1, /*command*/ 1, 10503 /*field*/ 1, /*bit_valid*/ 1, /*bit*/ 0); 10504 ctl_done((union ctl_io *)ctsio); 10505 return (CTL_RETVAL_COMPLETE); 10506 } 10507 notif_class = cdb->notif_class; 10508 alloc_len = scsi_2btoul(cdb->length); 10509 10510 data_len = sizeof(struct scsi_get_event_status_header); 10511 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 10512 ctsio->kern_sg_entries = 0; 10513 ctsio->kern_data_resid = 0; 10514 ctsio->kern_rel_offset = 0; 10515 10516 if (data_len < alloc_len) { 10517 ctsio->residual = alloc_len - data_len; 10518 ctsio->kern_data_len = data_len; 10519 ctsio->kern_total_len = data_len; 10520 } else { 10521 ctsio->residual = 0; 10522 ctsio->kern_data_len = alloc_len; 10523 ctsio->kern_total_len = alloc_len; 10524 } 10525 10526 hdr = (struct scsi_get_event_status_header *)ctsio->kern_data_ptr; 10527 scsi_ulto2b(0, hdr->descr_length); 10528 hdr->nea_class = SGESN_NEA; 10529 hdr->supported_class = 0; 10530 10531 ctl_set_success(ctsio); 10532 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10533 ctsio->be_move_done = ctl_config_move_done; 10534 ctl_datamove((union ctl_io *)ctsio); 10535 return (CTL_RETVAL_COMPLETE); 10536} 10537 10538int 10539ctl_mechanism_status(struct ctl_scsiio *ctsio) 10540{ 10541 struct scsi_mechanism_status_header *hdr; 10542 struct scsi_mechanism_status *cdb; 10543 struct ctl_lun *lun; 10544 uint32_t alloc_len, data_len; 10545 10546 lun = ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10547 cdb = (struct scsi_mechanism_status *)ctsio->cdb; 10548 alloc_len = scsi_2btoul(cdb->length); 10549 10550 data_len = sizeof(struct scsi_mechanism_status_header); 10551 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 10552 ctsio->kern_sg_entries = 0; 10553 ctsio->kern_data_resid = 0; 10554 ctsio->kern_rel_offset = 0; 10555 10556 if (data_len < alloc_len) { 10557 ctsio->residual = alloc_len - data_len; 10558 ctsio->kern_data_len = data_len; 10559 ctsio->kern_total_len = data_len; 10560 } else { 10561 ctsio->residual = 0; 10562 ctsio->kern_data_len = alloc_len; 10563 ctsio->kern_total_len = alloc_len; 10564 } 10565 10566 hdr = (struct scsi_mechanism_status_header *)ctsio->kern_data_ptr; 10567 hdr->state1 = 0x00; 10568 hdr->state2 = 0xe0; 10569 scsi_ulto3b(0, hdr->lba); 10570 hdr->slots_num = 0; 10571 scsi_ulto2b(0, hdr->slots_length); 10572 10573 ctl_set_success(ctsio); 10574 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10575 ctsio->be_move_done = ctl_config_move_done; 10576 ctl_datamove((union ctl_io *)ctsio); 10577 return (CTL_RETVAL_COMPLETE); 10578} 10579 10580static void 10581ctl_ultomsf(uint32_t lba, uint8_t *buf) 10582{ 10583 10584 lba += 150; 10585 buf[0] = 0; 10586 buf[1] = bin2bcd((lba / 75) / 60); 10587 buf[2] = bin2bcd((lba / 75) % 60); 10588 buf[3] = bin2bcd(lba % 75); 10589} 10590 10591int 10592ctl_read_toc(struct ctl_scsiio *ctsio) 10593{ 10594 struct scsi_read_toc_hdr *hdr; 10595 struct scsi_read_toc_type01_descr *descr; 10596 struct scsi_read_toc *cdb; 10597 struct ctl_lun *lun; 10598 uint32_t alloc_len, data_len; 10599 int format, msf; 10600 10601 lun = ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10602 cdb = (struct scsi_read_toc *)ctsio->cdb; 10603 msf = (cdb->byte2 & CD_MSF) != 0; 10604 format = cdb->format; 10605 alloc_len = scsi_2btoul(cdb->data_len); 10606 10607 data_len = sizeof(struct scsi_read_toc_hdr); 10608 if (format == 0) 10609 data_len += 2 * sizeof(struct scsi_read_toc_type01_descr); 10610 else 10611 data_len += sizeof(struct scsi_read_toc_type01_descr); 10612 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 10613 ctsio->kern_sg_entries = 0; 10614 ctsio->kern_data_resid = 0; 10615 ctsio->kern_rel_offset = 0; 10616 10617 if (data_len < alloc_len) { 10618 ctsio->residual = alloc_len - data_len; 10619 ctsio->kern_data_len = data_len; 10620 ctsio->kern_total_len = data_len; 10621 } else { 10622 ctsio->residual = 0; 10623 ctsio->kern_data_len = alloc_len; 10624 ctsio->kern_total_len = alloc_len; 10625 } 10626 10627 hdr = (struct scsi_read_toc_hdr *)ctsio->kern_data_ptr; 10628 if (format == 0) { 10629 scsi_ulto2b(0x12, hdr->data_length); 10630 hdr->first = 1; 10631 hdr->last = 1; 10632 descr = (struct scsi_read_toc_type01_descr *)(hdr + 1); 10633 descr->addr_ctl = 0x14; 10634 descr->track_number = 1; 10635 if (msf) 10636 ctl_ultomsf(0, descr->track_start); 10637 else 10638 scsi_ulto4b(0, descr->track_start); 10639 descr++; 10640 descr->addr_ctl = 0x14; 10641 descr->track_number = 0xaa; 10642 if (msf) 10643 ctl_ultomsf(lun->be_lun->maxlba+1, descr->track_start); 10644 else 10645 scsi_ulto4b(lun->be_lun->maxlba+1, descr->track_start); 10646 } else { 10647 scsi_ulto2b(0x0a, hdr->data_length); 10648 hdr->first = 1; 10649 hdr->last = 1; 10650 descr = (struct scsi_read_toc_type01_descr *)(hdr + 1); 10651 descr->addr_ctl = 0x14; 10652 descr->track_number = 1; 10653 if (msf) 10654 ctl_ultomsf(0, descr->track_start); 10655 else 10656 scsi_ulto4b(0, descr->track_start); 10657 } 10658 10659 ctl_set_success(ctsio); 10660 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10661 ctsio->be_move_done = ctl_config_move_done; 10662 ctl_datamove((union ctl_io *)ctsio); 10663 return (CTL_RETVAL_COMPLETE); 10664} 10665 10666/* 10667 * For known CDB types, parse the LBA and length. 10668 */ 10669static int 10670ctl_get_lba_len(union ctl_io *io, uint64_t *lba, uint64_t *len) 10671{ 10672 if (io->io_hdr.io_type != CTL_IO_SCSI) 10673 return (1); 10674 10675 switch (io->scsiio.cdb[0]) { 10676 case COMPARE_AND_WRITE: { 10677 struct scsi_compare_and_write *cdb; 10678 10679 cdb = (struct scsi_compare_and_write *)io->scsiio.cdb; 10680 10681 *lba = scsi_8btou64(cdb->addr); 10682 *len = cdb->length; 10683 break; 10684 } 10685 case READ_6: 10686 case WRITE_6: { 10687 struct scsi_rw_6 *cdb; 10688 10689 cdb = (struct scsi_rw_6 *)io->scsiio.cdb; 10690 10691 *lba = scsi_3btoul(cdb->addr); 10692 /* only 5 bits are valid in the most significant address byte */ 10693 *lba &= 0x1fffff; 10694 *len = cdb->length; 10695 break; 10696 } 10697 case READ_10: 10698 case WRITE_10: { 10699 struct scsi_rw_10 *cdb; 10700 10701 cdb = (struct scsi_rw_10 *)io->scsiio.cdb; 10702 10703 *lba = scsi_4btoul(cdb->addr); 10704 *len = scsi_2btoul(cdb->length); 10705 break; 10706 } 10707 case WRITE_VERIFY_10: { 10708 struct scsi_write_verify_10 *cdb; 10709 10710 cdb = (struct scsi_write_verify_10 *)io->scsiio.cdb; 10711 10712 *lba = scsi_4btoul(cdb->addr); 10713 *len = scsi_2btoul(cdb->length); 10714 break; 10715 } 10716 case READ_12: 10717 case WRITE_12: { 10718 struct scsi_rw_12 *cdb; 10719 10720 cdb = (struct scsi_rw_12 *)io->scsiio.cdb; 10721 10722 *lba = scsi_4btoul(cdb->addr); 10723 *len = scsi_4btoul(cdb->length); 10724 break; 10725 } 10726 case WRITE_VERIFY_12: { 10727 struct scsi_write_verify_12 *cdb; 10728 10729 cdb = (struct scsi_write_verify_12 *)io->scsiio.cdb; 10730 10731 *lba = scsi_4btoul(cdb->addr); 10732 *len = scsi_4btoul(cdb->length); 10733 break; 10734 } 10735 case READ_16: 10736 case WRITE_16: { 10737 struct scsi_rw_16 *cdb; 10738 10739 cdb = (struct scsi_rw_16 *)io->scsiio.cdb; 10740 10741 *lba = scsi_8btou64(cdb->addr); 10742 *len = scsi_4btoul(cdb->length); 10743 break; 10744 } 10745 case WRITE_ATOMIC_16: { 10746 struct scsi_write_atomic_16 *cdb; 10747 10748 cdb = (struct scsi_write_atomic_16 *)io->scsiio.cdb; 10749 10750 *lba = scsi_8btou64(cdb->addr); 10751 *len = scsi_2btoul(cdb->length); 10752 break; 10753 } 10754 case WRITE_VERIFY_16: { 10755 struct scsi_write_verify_16 *cdb; 10756 10757 cdb = (struct scsi_write_verify_16 *)io->scsiio.cdb; 10758 10759 *lba = scsi_8btou64(cdb->addr); 10760 *len = scsi_4btoul(cdb->length); 10761 break; 10762 } 10763 case WRITE_SAME_10: { 10764 struct scsi_write_same_10 *cdb; 10765 10766 cdb = (struct scsi_write_same_10 *)io->scsiio.cdb; 10767 10768 *lba = scsi_4btoul(cdb->addr); 10769 *len = scsi_2btoul(cdb->length); 10770 break; 10771 } 10772 case WRITE_SAME_16: { 10773 struct scsi_write_same_16 *cdb; 10774 10775 cdb = (struct scsi_write_same_16 *)io->scsiio.cdb; 10776 10777 *lba = scsi_8btou64(cdb->addr); 10778 *len = scsi_4btoul(cdb->length); 10779 break; 10780 } 10781 case VERIFY_10: { 10782 struct scsi_verify_10 *cdb; 10783 10784 cdb = (struct scsi_verify_10 *)io->scsiio.cdb; 10785 10786 *lba = scsi_4btoul(cdb->addr); 10787 *len = scsi_2btoul(cdb->length); 10788 break; 10789 } 10790 case VERIFY_12: { 10791 struct scsi_verify_12 *cdb; 10792 10793 cdb = (struct scsi_verify_12 *)io->scsiio.cdb; 10794 10795 *lba = scsi_4btoul(cdb->addr); 10796 *len = scsi_4btoul(cdb->length); 10797 break; 10798 } 10799 case VERIFY_16: { 10800 struct scsi_verify_16 *cdb; 10801 10802 cdb = (struct scsi_verify_16 *)io->scsiio.cdb; 10803 10804 *lba = scsi_8btou64(cdb->addr); 10805 *len = scsi_4btoul(cdb->length); 10806 break; 10807 } 10808 case UNMAP: { 10809 *lba = 0; 10810 *len = UINT64_MAX; 10811 break; 10812 } 10813 case SERVICE_ACTION_IN: { /* GET LBA STATUS */ 10814 struct scsi_get_lba_status *cdb; 10815 10816 cdb = (struct scsi_get_lba_status *)io->scsiio.cdb; 10817 *lba = scsi_8btou64(cdb->addr); 10818 *len = UINT32_MAX; 10819 break; 10820 } 10821 default: 10822 return (1); 10823 break; /* NOTREACHED */ 10824 } 10825 10826 return (0); 10827} 10828 10829static ctl_action 10830ctl_extent_check_lba(uint64_t lba1, uint64_t len1, uint64_t lba2, uint64_t len2, 10831 bool seq) 10832{ 10833 uint64_t endlba1, endlba2; 10834 10835 endlba1 = lba1 + len1 - (seq ? 0 : 1); 10836 endlba2 = lba2 + len2 - 1; 10837 10838 if ((endlba1 < lba2) || (endlba2 < lba1)) 10839 return (CTL_ACTION_PASS); 10840 else 10841 return (CTL_ACTION_BLOCK); 10842} 10843 10844static int 10845ctl_extent_check_unmap(union ctl_io *io, uint64_t lba2, uint64_t len2) 10846{ 10847 struct ctl_ptr_len_flags *ptrlen; 10848 struct scsi_unmap_desc *buf, *end, *range; 10849 uint64_t lba; 10850 uint32_t len; 10851 10852 /* If not UNMAP -- go other way. */ 10853 if (io->io_hdr.io_type != CTL_IO_SCSI || 10854 io->scsiio.cdb[0] != UNMAP) 10855 return (CTL_ACTION_ERROR); 10856 10857 /* If UNMAP without data -- block and wait for data. */ 10858 ptrlen = (struct ctl_ptr_len_flags *) 10859 &io->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 10860 if ((io->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0 || 10861 ptrlen->ptr == NULL) 10862 return (CTL_ACTION_BLOCK); 10863 10864 /* UNMAP with data -- check for collision. */ 10865 buf = (struct scsi_unmap_desc *)ptrlen->ptr; 10866 end = buf + ptrlen->len / sizeof(*buf); 10867 for (range = buf; range < end; range++) { 10868 lba = scsi_8btou64(range->lba); 10869 len = scsi_4btoul(range->length); 10870 if ((lba < lba2 + len2) && (lba + len > lba2)) 10871 return (CTL_ACTION_BLOCK); 10872 } 10873 return (CTL_ACTION_PASS); 10874} 10875 10876static ctl_action 10877ctl_extent_check(union ctl_io *io1, union ctl_io *io2, bool seq) 10878{ 10879 uint64_t lba1, lba2; 10880 uint64_t len1, len2; 10881 int retval; 10882 10883 if (ctl_get_lba_len(io2, &lba2, &len2) != 0) 10884 return (CTL_ACTION_ERROR); 10885 10886 retval = ctl_extent_check_unmap(io1, lba2, len2); 10887 if (retval != CTL_ACTION_ERROR) 10888 return (retval); 10889 10890 if (ctl_get_lba_len(io1, &lba1, &len1) != 0) 10891 return (CTL_ACTION_ERROR); 10892 10893 if (io1->io_hdr.flags & CTL_FLAG_SERSEQ_DONE) 10894 seq = FALSE; 10895 return (ctl_extent_check_lba(lba1, len1, lba2, len2, seq)); 10896} 10897 10898static ctl_action 10899ctl_extent_check_seq(union ctl_io *io1, union ctl_io *io2) 10900{ 10901 uint64_t lba1, lba2; 10902 uint64_t len1, len2; 10903 10904 if (io1->io_hdr.flags & CTL_FLAG_SERSEQ_DONE) 10905 return (CTL_ACTION_PASS); 10906 if (ctl_get_lba_len(io1, &lba1, &len1) != 0) 10907 return (CTL_ACTION_ERROR); 10908 if (ctl_get_lba_len(io2, &lba2, &len2) != 0) 10909 return (CTL_ACTION_ERROR); 10910 10911 if (lba1 + len1 == lba2) 10912 return (CTL_ACTION_BLOCK); 10913 return (CTL_ACTION_PASS); 10914} 10915 10916static ctl_action 10917ctl_check_for_blockage(struct ctl_lun *lun, union ctl_io *pending_io, 10918 union ctl_io *ooa_io) 10919{ 10920 const struct ctl_cmd_entry *pending_entry, *ooa_entry; 10921 const ctl_serialize_action *serialize_row; 10922 10923 /* 10924 * The initiator attempted multiple untagged commands at the same 10925 * time. Can't do that. 10926 */ 10927 if ((pending_io->scsiio.tag_type == CTL_TAG_UNTAGGED) 10928 && (ooa_io->scsiio.tag_type == CTL_TAG_UNTAGGED) 10929 && ((pending_io->io_hdr.nexus.targ_port == 10930 ooa_io->io_hdr.nexus.targ_port) 10931 && (pending_io->io_hdr.nexus.initid == 10932 ooa_io->io_hdr.nexus.initid)) 10933 && ((ooa_io->io_hdr.flags & (CTL_FLAG_ABORT | 10934 CTL_FLAG_STATUS_SENT)) == 0)) 10935 return (CTL_ACTION_OVERLAP); 10936 10937 /* 10938 * The initiator attempted to send multiple tagged commands with 10939 * the same ID. (It's fine if different initiators have the same 10940 * tag ID.) 10941 * 10942 * Even if all of those conditions are true, we don't kill the I/O 10943 * if the command ahead of us has been aborted. We won't end up 10944 * sending it to the FETD, and it's perfectly legal to resend a 10945 * command with the same tag number as long as the previous 10946 * instance of this tag number has been aborted somehow. 10947 */ 10948 if ((pending_io->scsiio.tag_type != CTL_TAG_UNTAGGED) 10949 && (ooa_io->scsiio.tag_type != CTL_TAG_UNTAGGED) 10950 && (pending_io->scsiio.tag_num == ooa_io->scsiio.tag_num) 10951 && ((pending_io->io_hdr.nexus.targ_port == 10952 ooa_io->io_hdr.nexus.targ_port) 10953 && (pending_io->io_hdr.nexus.initid == 10954 ooa_io->io_hdr.nexus.initid)) 10955 && ((ooa_io->io_hdr.flags & (CTL_FLAG_ABORT | 10956 CTL_FLAG_STATUS_SENT)) == 0)) 10957 return (CTL_ACTION_OVERLAP_TAG); 10958 10959 /* 10960 * If we get a head of queue tag, SAM-3 says that we should 10961 * immediately execute it. 10962 * 10963 * What happens if this command would normally block for some other 10964 * reason? e.g. a request sense with a head of queue tag 10965 * immediately after a write. Normally that would block, but this 10966 * will result in its getting executed immediately... 10967 * 10968 * We currently return "pass" instead of "skip", so we'll end up 10969 * going through the rest of the queue to check for overlapped tags. 10970 * 10971 * XXX KDM check for other types of blockage first?? 10972 */ 10973 if (pending_io->scsiio.tag_type == CTL_TAG_HEAD_OF_QUEUE) 10974 return (CTL_ACTION_PASS); 10975 10976 /* 10977 * Ordered tags have to block until all items ahead of them 10978 * have completed. If we get called with an ordered tag, we always 10979 * block, if something else is ahead of us in the queue. 10980 */ 10981 if (pending_io->scsiio.tag_type == CTL_TAG_ORDERED) 10982 return (CTL_ACTION_BLOCK); 10983 10984 /* 10985 * Simple tags get blocked until all head of queue and ordered tags 10986 * ahead of them have completed. I'm lumping untagged commands in 10987 * with simple tags here. XXX KDM is that the right thing to do? 10988 */ 10989 if (((pending_io->scsiio.tag_type == CTL_TAG_UNTAGGED) 10990 || (pending_io->scsiio.tag_type == CTL_TAG_SIMPLE)) 10991 && ((ooa_io->scsiio.tag_type == CTL_TAG_HEAD_OF_QUEUE) 10992 || (ooa_io->scsiio.tag_type == CTL_TAG_ORDERED))) 10993 return (CTL_ACTION_BLOCK); 10994 10995 pending_entry = ctl_get_cmd_entry(&pending_io->scsiio, NULL); 10996 ooa_entry = ctl_get_cmd_entry(&ooa_io->scsiio, NULL); 10997 10998 serialize_row = ctl_serialize_table[ooa_entry->seridx]; 10999 11000 switch (serialize_row[pending_entry->seridx]) { 11001 case CTL_SER_BLOCK: 11002 return (CTL_ACTION_BLOCK); 11003 case CTL_SER_EXTENT: 11004 return (ctl_extent_check(ooa_io, pending_io, 11005 (lun->be_lun && lun->be_lun->serseq == CTL_LUN_SERSEQ_ON))); 11006 case CTL_SER_EXTENTOPT: 11007 if ((lun->mode_pages.control_page[CTL_PAGE_CURRENT].queue_flags 11008 & SCP_QUEUE_ALG_MASK) != SCP_QUEUE_ALG_UNRESTRICTED) 11009 return (ctl_extent_check(ooa_io, pending_io, 11010 (lun->be_lun && 11011 lun->be_lun->serseq == CTL_LUN_SERSEQ_ON))); 11012 return (CTL_ACTION_PASS); 11013 case CTL_SER_EXTENTSEQ: 11014 if (lun->be_lun && lun->be_lun->serseq != CTL_LUN_SERSEQ_OFF) 11015 return (ctl_extent_check_seq(ooa_io, pending_io)); 11016 return (CTL_ACTION_PASS); 11017 case CTL_SER_PASS: 11018 return (CTL_ACTION_PASS); 11019 case CTL_SER_BLOCKOPT: 11020 if ((lun->mode_pages.control_page[CTL_PAGE_CURRENT].queue_flags 11021 & SCP_QUEUE_ALG_MASK) != SCP_QUEUE_ALG_UNRESTRICTED) 11022 return (CTL_ACTION_BLOCK); 11023 return (CTL_ACTION_PASS); 11024 case CTL_SER_SKIP: 11025 return (CTL_ACTION_SKIP); 11026 default: 11027 panic("invalid serialization value %d", 11028 serialize_row[pending_entry->seridx]); 11029 } 11030 11031 return (CTL_ACTION_ERROR); 11032} 11033 11034/* 11035 * Check for blockage or overlaps against the OOA (Order Of Arrival) queue. 11036 * Assumptions: 11037 * - pending_io is generally either incoming, or on the blocked queue 11038 * - starting I/O is the I/O we want to start the check with. 11039 */ 11040static ctl_action 11041ctl_check_ooa(struct ctl_lun *lun, union ctl_io *pending_io, 11042 union ctl_io *starting_io) 11043{ 11044 union ctl_io *ooa_io; 11045 ctl_action action; 11046 11047 mtx_assert(&lun->lun_lock, MA_OWNED); 11048 11049 /* 11050 * Run back along the OOA queue, starting with the current 11051 * blocked I/O and going through every I/O before it on the 11052 * queue. If starting_io is NULL, we'll just end up returning 11053 * CTL_ACTION_PASS. 11054 */ 11055 for (ooa_io = starting_io; ooa_io != NULL; 11056 ooa_io = (union ctl_io *)TAILQ_PREV(&ooa_io->io_hdr, ctl_ooaq, 11057 ooa_links)){ 11058 11059 /* 11060 * This routine just checks to see whether 11061 * cur_blocked is blocked by ooa_io, which is ahead 11062 * of it in the queue. It doesn't queue/dequeue 11063 * cur_blocked. 11064 */ 11065 action = ctl_check_for_blockage(lun, pending_io, ooa_io); 11066 switch (action) { 11067 case CTL_ACTION_BLOCK: 11068 case CTL_ACTION_OVERLAP: 11069 case CTL_ACTION_OVERLAP_TAG: 11070 case CTL_ACTION_SKIP: 11071 case CTL_ACTION_ERROR: 11072 return (action); 11073 break; /* NOTREACHED */ 11074 case CTL_ACTION_PASS: 11075 break; 11076 default: 11077 panic("invalid action %d", action); 11078 break; /* NOTREACHED */ 11079 } 11080 } 11081 11082 return (CTL_ACTION_PASS); 11083} 11084 11085/* 11086 * Assumptions: 11087 * - An I/O has just completed, and has been removed from the per-LUN OOA 11088 * queue, so some items on the blocked queue may now be unblocked. 11089 */ 11090static int 11091ctl_check_blocked(struct ctl_lun *lun) 11092{ 11093 struct ctl_softc *softc = lun->ctl_softc; 11094 union ctl_io *cur_blocked, *next_blocked; 11095 11096 mtx_assert(&lun->lun_lock, MA_OWNED); 11097 11098 /* 11099 * Run forward from the head of the blocked queue, checking each 11100 * entry against the I/Os prior to it on the OOA queue to see if 11101 * there is still any blockage. 11102 * 11103 * We cannot use the TAILQ_FOREACH() macro, because it can't deal 11104 * with our removing a variable on it while it is traversing the 11105 * list. 11106 */ 11107 for (cur_blocked = (union ctl_io *)TAILQ_FIRST(&lun->blocked_queue); 11108 cur_blocked != NULL; cur_blocked = next_blocked) { 11109 union ctl_io *prev_ooa; 11110 ctl_action action; 11111 11112 next_blocked = (union ctl_io *)TAILQ_NEXT(&cur_blocked->io_hdr, 11113 blocked_links); 11114 11115 prev_ooa = (union ctl_io *)TAILQ_PREV(&cur_blocked->io_hdr, 11116 ctl_ooaq, ooa_links); 11117 11118 /* 11119 * If cur_blocked happens to be the first item in the OOA 11120 * queue now, prev_ooa will be NULL, and the action 11121 * returned will just be CTL_ACTION_PASS. 11122 */ 11123 action = ctl_check_ooa(lun, cur_blocked, prev_ooa); 11124 11125 switch (action) { 11126 case CTL_ACTION_BLOCK: 11127 /* Nothing to do here, still blocked */ 11128 break; 11129 case CTL_ACTION_OVERLAP: 11130 case CTL_ACTION_OVERLAP_TAG: 11131 /* 11132 * This shouldn't happen! In theory we've already 11133 * checked this command for overlap... 11134 */ 11135 break; 11136 case CTL_ACTION_PASS: 11137 case CTL_ACTION_SKIP: { 11138 const struct ctl_cmd_entry *entry; 11139 11140 /* 11141 * The skip case shouldn't happen, this transaction 11142 * should have never made it onto the blocked queue. 11143 */ 11144 /* 11145 * This I/O is no longer blocked, we can remove it 11146 * from the blocked queue. Since this is a TAILQ 11147 * (doubly linked list), we can do O(1) removals 11148 * from any place on the list. 11149 */ 11150 TAILQ_REMOVE(&lun->blocked_queue, &cur_blocked->io_hdr, 11151 blocked_links); 11152 cur_blocked->io_hdr.flags &= ~CTL_FLAG_BLOCKED; 11153 11154 if ((softc->ha_mode != CTL_HA_MODE_XFER) && 11155 (cur_blocked->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)){ 11156 /* 11157 * Need to send IO back to original side to 11158 * run 11159 */ 11160 union ctl_ha_msg msg_info; 11161 11162 cur_blocked->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 11163 msg_info.hdr.original_sc = 11164 cur_blocked->io_hdr.original_sc; 11165 msg_info.hdr.serializing_sc = cur_blocked; 11166 msg_info.hdr.msg_type = CTL_MSG_R2R; 11167 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 11168 sizeof(msg_info.hdr), M_NOWAIT); 11169 break; 11170 } 11171 entry = ctl_get_cmd_entry(&cur_blocked->scsiio, NULL); 11172 11173 /* 11174 * Check this I/O for LUN state changes that may 11175 * have happened while this command was blocked. 11176 * The LUN state may have been changed by a command 11177 * ahead of us in the queue, so we need to re-check 11178 * for any states that can be caused by SCSI 11179 * commands. 11180 */ 11181 if (ctl_scsiio_lun_check(lun, entry, 11182 &cur_blocked->scsiio) == 0) { 11183 cur_blocked->io_hdr.flags |= 11184 CTL_FLAG_IS_WAS_ON_RTR; 11185 ctl_enqueue_rtr(cur_blocked); 11186 } else 11187 ctl_done(cur_blocked); 11188 break; 11189 } 11190 default: 11191 /* 11192 * This probably shouldn't happen -- we shouldn't 11193 * get CTL_ACTION_ERROR, or anything else. 11194 */ 11195 break; 11196 } 11197 } 11198 11199 return (CTL_RETVAL_COMPLETE); 11200} 11201 11202/* 11203 * This routine (with one exception) checks LUN flags that can be set by 11204 * commands ahead of us in the OOA queue. These flags have to be checked 11205 * when a command initially comes in, and when we pull a command off the 11206 * blocked queue and are preparing to execute it. The reason we have to 11207 * check these flags for commands on the blocked queue is that the LUN 11208 * state may have been changed by a command ahead of us while we're on the 11209 * blocked queue. 11210 * 11211 * Ordering is somewhat important with these checks, so please pay 11212 * careful attention to the placement of any new checks. 11213 */ 11214static int 11215ctl_scsiio_lun_check(struct ctl_lun *lun, 11216 const struct ctl_cmd_entry *entry, struct ctl_scsiio *ctsio) 11217{ 11218 struct ctl_softc *softc = lun->ctl_softc; 11219 int retval; 11220 uint32_t residx; 11221 11222 retval = 0; 11223 11224 mtx_assert(&lun->lun_lock, MA_OWNED); 11225 11226 /* 11227 * If this shelf is a secondary shelf controller, we may have to 11228 * reject some commands disallowed by HA mode and link state. 11229 */ 11230 if ((lun->flags & CTL_LUN_PRIMARY_SC) == 0) { 11231 if (softc->ha_link == CTL_HA_LINK_OFFLINE && 11232 (entry->flags & CTL_CMD_FLAG_OK_ON_UNAVAIL) == 0) { 11233 ctl_set_lun_unavail(ctsio); 11234 retval = 1; 11235 goto bailout; 11236 } 11237 if ((lun->flags & CTL_LUN_PEER_SC_PRIMARY) == 0 && 11238 (entry->flags & CTL_CMD_FLAG_OK_ON_UNAVAIL) == 0) { 11239 ctl_set_lun_transit(ctsio); 11240 retval = 1; 11241 goto bailout; 11242 } 11243 if (softc->ha_mode == CTL_HA_MODE_ACT_STBY && 11244 (entry->flags & CTL_CMD_FLAG_OK_ON_STANDBY) == 0) { 11245 ctl_set_lun_standby(ctsio); 11246 retval = 1; 11247 goto bailout; 11248 } 11249 11250 /* The rest of checks are only done on executing side */ 11251 if (softc->ha_mode == CTL_HA_MODE_XFER) 11252 goto bailout; 11253 } 11254 11255 if (entry->pattern & CTL_LUN_PAT_WRITE) { 11256 if (lun->be_lun && 11257 lun->be_lun->flags & CTL_LUN_FLAG_READONLY) { 11258 ctl_set_hw_write_protected(ctsio); 11259 retval = 1; 11260 goto bailout; 11261 } 11262 if ((lun->mode_pages.control_page[CTL_PAGE_CURRENT] 11263 .eca_and_aen & SCP_SWP) != 0) { 11264 ctl_set_sense(ctsio, /*current_error*/ 1, 11265 /*sense_key*/ SSD_KEY_DATA_PROTECT, 11266 /*asc*/ 0x27, /*ascq*/ 0x02, SSD_ELEM_NONE); 11267 retval = 1; 11268 goto bailout; 11269 } 11270 } 11271 11272 /* 11273 * Check for a reservation conflict. If this command isn't allowed 11274 * even on reserved LUNs, and if this initiator isn't the one who 11275 * reserved us, reject the command with a reservation conflict. 11276 */ 11277 residx = ctl_get_initindex(&ctsio->io_hdr.nexus); 11278 if ((lun->flags & CTL_LUN_RESERVED) 11279 && ((entry->flags & CTL_CMD_FLAG_ALLOW_ON_RESV) == 0)) { 11280 if (lun->res_idx != residx) { 11281 ctl_set_reservation_conflict(ctsio); 11282 retval = 1; 11283 goto bailout; 11284 } 11285 } 11286 11287 if ((lun->flags & CTL_LUN_PR_RESERVED) == 0 || 11288 (entry->flags & CTL_CMD_FLAG_ALLOW_ON_PR_RESV)) { 11289 /* No reservation or command is allowed. */; 11290 } else if ((entry->flags & CTL_CMD_FLAG_ALLOW_ON_PR_WRESV) && 11291 (lun->res_type == SPR_TYPE_WR_EX || 11292 lun->res_type == SPR_TYPE_WR_EX_RO || 11293 lun->res_type == SPR_TYPE_WR_EX_AR)) { 11294 /* The command is allowed for Write Exclusive resv. */; 11295 } else { 11296 /* 11297 * if we aren't registered or it's a res holder type 11298 * reservation and this isn't the res holder then set a 11299 * conflict. 11300 */ 11301 if (ctl_get_prkey(lun, residx) == 0 11302 || (residx != lun->pr_res_idx && lun->res_type < 4)) { 11303 ctl_set_reservation_conflict(ctsio); 11304 retval = 1; 11305 goto bailout; 11306 } 11307 } 11308 11309 if ((entry->flags & CTL_CMD_FLAG_OK_ON_NO_MEDIA) == 0) { 11310 if (lun->flags & CTL_LUN_EJECTED) 11311 ctl_set_lun_ejected(ctsio); 11312 else if (lun->flags & CTL_LUN_NO_MEDIA) { 11313 if (lun->flags & CTL_LUN_REMOVABLE) 11314 ctl_set_lun_no_media(ctsio); 11315 else 11316 ctl_set_lun_int_reqd(ctsio); 11317 } else if (lun->flags & CTL_LUN_STOPPED) 11318 ctl_set_lun_stopped(ctsio); 11319 else 11320 goto bailout; 11321 retval = 1; 11322 goto bailout; 11323 } 11324 11325bailout: 11326 return (retval); 11327} 11328 11329static void 11330ctl_failover_io(union ctl_io *io, int have_lock) 11331{ 11332 ctl_set_busy(&io->scsiio); 11333 ctl_done(io); 11334} 11335 11336static void 11337ctl_failover_lun(union ctl_io *rio) 11338{ 11339 struct ctl_softc *softc = control_softc; 11340 struct ctl_lun *lun; 11341 struct ctl_io_hdr *io, *next_io; 11342 uint32_t targ_lun; 11343 11344 targ_lun = rio->io_hdr.nexus.targ_mapped_lun; 11345 CTL_DEBUG_PRINT(("FAILOVER for lun %ju\n", targ_lun)); 11346 11347 /* Find and lock the LUN. */ 11348 mtx_lock(&softc->ctl_lock); 11349 if ((targ_lun < CTL_MAX_LUNS) && 11350 ((lun = softc->ctl_luns[targ_lun]) != NULL)) { 11351 mtx_lock(&lun->lun_lock); 11352 mtx_unlock(&softc->ctl_lock); 11353 if (lun->flags & CTL_LUN_DISABLED) { 11354 mtx_unlock(&lun->lun_lock); 11355 return; 11356 } 11357 } else { 11358 mtx_unlock(&softc->ctl_lock); 11359 return; 11360 } 11361 11362 if (softc->ha_mode == CTL_HA_MODE_XFER) { 11363 TAILQ_FOREACH_SAFE(io, &lun->ooa_queue, ooa_links, next_io) { 11364 /* We are master */ 11365 if (io->flags & CTL_FLAG_FROM_OTHER_SC) { 11366 if (io->flags & CTL_FLAG_IO_ACTIVE) { 11367 io->flags |= CTL_FLAG_ABORT; 11368 io->flags |= CTL_FLAG_FAILOVER; 11369 } else { /* This can be only due to DATAMOVE */ 11370 io->msg_type = CTL_MSG_DATAMOVE_DONE; 11371 io->flags &= ~CTL_FLAG_DMA_INPROG; 11372 io->flags |= CTL_FLAG_IO_ACTIVE; 11373 io->port_status = 31340; 11374 ctl_enqueue_isc((union ctl_io *)io); 11375 } 11376 } 11377 /* We are slave */ 11378 if (io->flags & CTL_FLAG_SENT_2OTHER_SC) { 11379 io->flags &= ~CTL_FLAG_SENT_2OTHER_SC; 11380 if (io->flags & CTL_FLAG_IO_ACTIVE) { 11381 io->flags |= CTL_FLAG_FAILOVER; 11382 } else { 11383 ctl_set_busy(&((union ctl_io *)io)-> 11384 scsiio); 11385 ctl_done((union ctl_io *)io); 11386 } 11387 } 11388 } 11389 } else { /* SERIALIZE modes */ 11390 TAILQ_FOREACH_SAFE(io, &lun->blocked_queue, blocked_links, 11391 next_io) { 11392 /* We are master */ 11393 if (io->flags & CTL_FLAG_FROM_OTHER_SC) { 11394 TAILQ_REMOVE(&lun->blocked_queue, io, 11395 blocked_links); 11396 io->flags &= ~CTL_FLAG_BLOCKED; 11397 TAILQ_REMOVE(&lun->ooa_queue, io, ooa_links); 11398 ctl_free_io((union ctl_io *)io); 11399 } 11400 } 11401 TAILQ_FOREACH_SAFE(io, &lun->ooa_queue, ooa_links, next_io) { 11402 /* We are master */ 11403 if (io->flags & CTL_FLAG_FROM_OTHER_SC) { 11404 TAILQ_REMOVE(&lun->ooa_queue, io, ooa_links); 11405 ctl_free_io((union ctl_io *)io); 11406 } 11407 /* We are slave */ 11408 if (io->flags & CTL_FLAG_SENT_2OTHER_SC) { 11409 io->flags &= ~CTL_FLAG_SENT_2OTHER_SC; 11410 if (!(io->flags & CTL_FLAG_IO_ACTIVE)) { 11411 ctl_set_busy(&((union ctl_io *)io)-> 11412 scsiio); 11413 ctl_done((union ctl_io *)io); 11414 } 11415 } 11416 } 11417 ctl_check_blocked(lun); 11418 } 11419 mtx_unlock(&lun->lun_lock); 11420} 11421 11422static int 11423ctl_scsiio_precheck(struct ctl_softc *softc, struct ctl_scsiio *ctsio) 11424{ 11425 struct ctl_lun *lun; 11426 const struct ctl_cmd_entry *entry; 11427 uint32_t initidx, targ_lun; 11428 int retval; 11429 11430 retval = 0; 11431 11432 lun = NULL; 11433 11434 targ_lun = ctsio->io_hdr.nexus.targ_mapped_lun; 11435 if ((targ_lun < CTL_MAX_LUNS) 11436 && ((lun = softc->ctl_luns[targ_lun]) != NULL)) { 11437 /* 11438 * If the LUN is invalid, pretend that it doesn't exist. 11439 * It will go away as soon as all pending I/O has been 11440 * completed. 11441 */ 11442 mtx_lock(&lun->lun_lock); 11443 if (lun->flags & CTL_LUN_DISABLED) { 11444 mtx_unlock(&lun->lun_lock); 11445 lun = NULL; 11446 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr = NULL; 11447 ctsio->io_hdr.ctl_private[CTL_PRIV_BACKEND_LUN].ptr = NULL; 11448 } else { 11449 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr = lun; 11450 ctsio->io_hdr.ctl_private[CTL_PRIV_BACKEND_LUN].ptr = 11451 lun->be_lun; 11452 11453 /* 11454 * Every I/O goes into the OOA queue for a 11455 * particular LUN, and stays there until completion. 11456 */ 11457#ifdef CTL_TIME_IO 11458 if (TAILQ_EMPTY(&lun->ooa_queue)) { 11459 lun->idle_time += getsbinuptime() - 11460 lun->last_busy; 11461 } 11462#endif 11463 TAILQ_INSERT_TAIL(&lun->ooa_queue, &ctsio->io_hdr, 11464 ooa_links); 11465 } 11466 } else { 11467 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr = NULL; 11468 ctsio->io_hdr.ctl_private[CTL_PRIV_BACKEND_LUN].ptr = NULL; 11469 } 11470 11471 /* Get command entry and return error if it is unsuppotyed. */ 11472 entry = ctl_validate_command(ctsio); 11473 if (entry == NULL) { 11474 if (lun) 11475 mtx_unlock(&lun->lun_lock); 11476 return (retval); 11477 } 11478 11479 ctsio->io_hdr.flags &= ~CTL_FLAG_DATA_MASK; 11480 ctsio->io_hdr.flags |= entry->flags & CTL_FLAG_DATA_MASK; 11481 11482 /* 11483 * Check to see whether we can send this command to LUNs that don't 11484 * exist. This should pretty much only be the case for inquiry 11485 * and request sense. Further checks, below, really require having 11486 * a LUN, so we can't really check the command anymore. Just put 11487 * it on the rtr queue. 11488 */ 11489 if (lun == NULL) { 11490 if (entry->flags & CTL_CMD_FLAG_OK_ON_NO_LUN) { 11491 ctsio->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 11492 ctl_enqueue_rtr((union ctl_io *)ctsio); 11493 return (retval); 11494 } 11495 11496 ctl_set_unsupported_lun(ctsio); 11497 ctl_done((union ctl_io *)ctsio); 11498 CTL_DEBUG_PRINT(("ctl_scsiio_precheck: bailing out due to invalid LUN\n")); 11499 return (retval); 11500 } else { 11501 /* 11502 * Make sure we support this particular command on this LUN. 11503 * e.g., we don't support writes to the control LUN. 11504 */ 11505 if (!ctl_cmd_applicable(lun->be_lun->lun_type, entry)) { 11506 mtx_unlock(&lun->lun_lock); 11507 ctl_set_invalid_opcode(ctsio); 11508 ctl_done((union ctl_io *)ctsio); 11509 return (retval); 11510 } 11511 } 11512 11513 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 11514 11515#ifdef CTL_WITH_CA 11516 /* 11517 * If we've got a request sense, it'll clear the contingent 11518 * allegiance condition. Otherwise, if we have a CA condition for 11519 * this initiator, clear it, because it sent down a command other 11520 * than request sense. 11521 */ 11522 if ((ctsio->cdb[0] != REQUEST_SENSE) 11523 && (ctl_is_set(lun->have_ca, initidx))) 11524 ctl_clear_mask(lun->have_ca, initidx); 11525#endif 11526 11527 /* 11528 * If the command has this flag set, it handles its own unit 11529 * attention reporting, we shouldn't do anything. Otherwise we 11530 * check for any pending unit attentions, and send them back to the 11531 * initiator. We only do this when a command initially comes in, 11532 * not when we pull it off the blocked queue. 11533 * 11534 * According to SAM-3, section 5.3.2, the order that things get 11535 * presented back to the host is basically unit attentions caused 11536 * by some sort of reset event, busy status, reservation conflicts 11537 * or task set full, and finally any other status. 11538 * 11539 * One issue here is that some of the unit attentions we report 11540 * don't fall into the "reset" category (e.g. "reported luns data 11541 * has changed"). So reporting it here, before the reservation 11542 * check, may be technically wrong. I guess the only thing to do 11543 * would be to check for and report the reset events here, and then 11544 * check for the other unit attention types after we check for a 11545 * reservation conflict. 11546 * 11547 * XXX KDM need to fix this 11548 */ 11549 if ((entry->flags & CTL_CMD_FLAG_NO_SENSE) == 0) { 11550 ctl_ua_type ua_type; 11551 11552 ua_type = ctl_build_ua(lun, initidx, &ctsio->sense_data, 11553 SSD_TYPE_NONE); 11554 if (ua_type != CTL_UA_NONE) { 11555 mtx_unlock(&lun->lun_lock); 11556 ctsio->scsi_status = SCSI_STATUS_CHECK_COND; 11557 ctsio->io_hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 11558 ctsio->sense_len = SSD_FULL_SIZE; 11559 ctl_done((union ctl_io *)ctsio); 11560 return (retval); 11561 } 11562 } 11563 11564 11565 if (ctl_scsiio_lun_check(lun, entry, ctsio) != 0) { 11566 mtx_unlock(&lun->lun_lock); 11567 ctl_done((union ctl_io *)ctsio); 11568 return (retval); 11569 } 11570 11571 /* 11572 * XXX CHD this is where we want to send IO to other side if 11573 * this LUN is secondary on this SC. We will need to make a copy 11574 * of the IO and flag the IO on this side as SENT_2OTHER and the flag 11575 * the copy we send as FROM_OTHER. 11576 * We also need to stuff the address of the original IO so we can 11577 * find it easily. Something similar will need be done on the other 11578 * side so when we are done we can find the copy. 11579 */ 11580 if ((lun->flags & CTL_LUN_PRIMARY_SC) == 0 && 11581 (lun->flags & CTL_LUN_PEER_SC_PRIMARY) != 0 && 11582 (entry->flags & CTL_CMD_FLAG_RUN_HERE) == 0) { 11583 union ctl_ha_msg msg_info; 11584 int isc_retval; 11585 11586 ctsio->io_hdr.flags |= CTL_FLAG_SENT_2OTHER_SC; 11587 ctsio->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 11588 mtx_unlock(&lun->lun_lock); 11589 11590 msg_info.hdr.msg_type = CTL_MSG_SERIALIZE; 11591 msg_info.hdr.original_sc = (union ctl_io *)ctsio; 11592 msg_info.hdr.serializing_sc = NULL; 11593 msg_info.hdr.nexus = ctsio->io_hdr.nexus; 11594 msg_info.scsi.tag_num = ctsio->tag_num; 11595 msg_info.scsi.tag_type = ctsio->tag_type; 11596 msg_info.scsi.cdb_len = ctsio->cdb_len; 11597 memcpy(msg_info.scsi.cdb, ctsio->cdb, CTL_MAX_CDBLEN); 11598 11599 if ((isc_retval = ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 11600 sizeof(msg_info.scsi) - sizeof(msg_info.scsi.sense_data), 11601 M_WAITOK)) > CTL_HA_STATUS_SUCCESS) { 11602 ctl_set_busy(ctsio); 11603 ctl_done((union ctl_io *)ctsio); 11604 return (retval); 11605 } 11606 return (retval); 11607 } 11608 11609 switch (ctl_check_ooa(lun, (union ctl_io *)ctsio, 11610 (union ctl_io *)TAILQ_PREV(&ctsio->io_hdr, 11611 ctl_ooaq, ooa_links))) { 11612 case CTL_ACTION_BLOCK: 11613 ctsio->io_hdr.flags |= CTL_FLAG_BLOCKED; 11614 TAILQ_INSERT_TAIL(&lun->blocked_queue, &ctsio->io_hdr, 11615 blocked_links); 11616 mtx_unlock(&lun->lun_lock); 11617 return (retval); 11618 case CTL_ACTION_PASS: 11619 case CTL_ACTION_SKIP: 11620 ctsio->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 11621 mtx_unlock(&lun->lun_lock); 11622 ctl_enqueue_rtr((union ctl_io *)ctsio); 11623 break; 11624 case CTL_ACTION_OVERLAP: 11625 mtx_unlock(&lun->lun_lock); 11626 ctl_set_overlapped_cmd(ctsio); 11627 ctl_done((union ctl_io *)ctsio); 11628 break; 11629 case CTL_ACTION_OVERLAP_TAG: 11630 mtx_unlock(&lun->lun_lock); 11631 ctl_set_overlapped_tag(ctsio, ctsio->tag_num & 0xff); 11632 ctl_done((union ctl_io *)ctsio); 11633 break; 11634 case CTL_ACTION_ERROR: 11635 default: 11636 mtx_unlock(&lun->lun_lock); 11637 ctl_set_internal_failure(ctsio, 11638 /*sks_valid*/ 0, 11639 /*retry_count*/ 0); 11640 ctl_done((union ctl_io *)ctsio); 11641 break; 11642 } 11643 return (retval); 11644} 11645 11646const struct ctl_cmd_entry * 11647ctl_get_cmd_entry(struct ctl_scsiio *ctsio, int *sa) 11648{ 11649 const struct ctl_cmd_entry *entry; 11650 int service_action; 11651 11652 entry = &ctl_cmd_table[ctsio->cdb[0]]; 11653 if (sa) 11654 *sa = ((entry->flags & CTL_CMD_FLAG_SA5) != 0); 11655 if (entry->flags & CTL_CMD_FLAG_SA5) { 11656 service_action = ctsio->cdb[1] & SERVICE_ACTION_MASK; 11657 entry = &((const struct ctl_cmd_entry *) 11658 entry->execute)[service_action]; 11659 } 11660 return (entry); 11661} 11662 11663const struct ctl_cmd_entry * 11664ctl_validate_command(struct ctl_scsiio *ctsio) 11665{ 11666 const struct ctl_cmd_entry *entry; 11667 int i, sa; 11668 uint8_t diff; 11669 11670 entry = ctl_get_cmd_entry(ctsio, &sa); 11671 if (entry->execute == NULL) { 11672 if (sa) 11673 ctl_set_invalid_field(ctsio, 11674 /*sks_valid*/ 1, 11675 /*command*/ 1, 11676 /*field*/ 1, 11677 /*bit_valid*/ 1, 11678 /*bit*/ 4); 11679 else 11680 ctl_set_invalid_opcode(ctsio); 11681 ctl_done((union ctl_io *)ctsio); 11682 return (NULL); 11683 } 11684 KASSERT(entry->length > 0, 11685 ("Not defined length for command 0x%02x/0x%02x", 11686 ctsio->cdb[0], ctsio->cdb[1])); 11687 for (i = 1; i < entry->length; i++) { 11688 diff = ctsio->cdb[i] & ~entry->usage[i - 1]; 11689 if (diff == 0) 11690 continue; 11691 ctl_set_invalid_field(ctsio, 11692 /*sks_valid*/ 1, 11693 /*command*/ 1, 11694 /*field*/ i, 11695 /*bit_valid*/ 1, 11696 /*bit*/ fls(diff) - 1); 11697 ctl_done((union ctl_io *)ctsio); 11698 return (NULL); 11699 } 11700 return (entry); 11701} 11702 11703static int 11704ctl_cmd_applicable(uint8_t lun_type, const struct ctl_cmd_entry *entry) 11705{ 11706 11707 switch (lun_type) { 11708 case T_DIRECT: 11709 if ((entry->flags & CTL_CMD_FLAG_OK_ON_DIRECT) == 0) 11710 return (0); 11711 break; 11712 case T_PROCESSOR: 11713 if ((entry->flags & CTL_CMD_FLAG_OK_ON_PROC) == 0) 11714 return (0); 11715 break; 11716 case T_CDROM: 11717 if ((entry->flags & CTL_CMD_FLAG_OK_ON_CDROM) == 0) 11718 return (0); 11719 break; 11720 default: 11721 return (0); 11722 } 11723 return (1); 11724} 11725 11726static int 11727ctl_scsiio(struct ctl_scsiio *ctsio) 11728{ 11729 int retval; 11730 const struct ctl_cmd_entry *entry; 11731 11732 retval = CTL_RETVAL_COMPLETE; 11733 11734 CTL_DEBUG_PRINT(("ctl_scsiio cdb[0]=%02X\n", ctsio->cdb[0])); 11735 11736 entry = ctl_get_cmd_entry(ctsio, NULL); 11737 11738 /* 11739 * If this I/O has been aborted, just send it straight to 11740 * ctl_done() without executing it. 11741 */ 11742 if (ctsio->io_hdr.flags & CTL_FLAG_ABORT) { 11743 ctl_done((union ctl_io *)ctsio); 11744 goto bailout; 11745 } 11746 11747 /* 11748 * All the checks should have been handled by ctl_scsiio_precheck(). 11749 * We should be clear now to just execute the I/O. 11750 */ 11751 retval = entry->execute(ctsio); 11752 11753bailout: 11754 return (retval); 11755} 11756 11757/* 11758 * Since we only implement one target right now, a bus reset simply resets 11759 * our single target. 11760 */ 11761static int 11762ctl_bus_reset(struct ctl_softc *softc, union ctl_io *io) 11763{ 11764 return(ctl_target_reset(softc, io, CTL_UA_BUS_RESET)); 11765} 11766 11767static int 11768ctl_target_reset(struct ctl_softc *softc, union ctl_io *io, 11769 ctl_ua_type ua_type) 11770{ 11771 struct ctl_port *port; 11772 struct ctl_lun *lun; 11773 int retval; 11774 11775 if (!(io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)) { 11776 union ctl_ha_msg msg_info; 11777 11778 msg_info.hdr.nexus = io->io_hdr.nexus; 11779 if (ua_type==CTL_UA_TARG_RESET) 11780 msg_info.task.task_action = CTL_TASK_TARGET_RESET; 11781 else 11782 msg_info.task.task_action = CTL_TASK_BUS_RESET; 11783 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 11784 msg_info.hdr.original_sc = NULL; 11785 msg_info.hdr.serializing_sc = NULL; 11786 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 11787 sizeof(msg_info.task), M_WAITOK); 11788 } 11789 retval = 0; 11790 11791 mtx_lock(&softc->ctl_lock); 11792 port = ctl_io_port(&io->io_hdr); 11793 STAILQ_FOREACH(lun, &softc->lun_list, links) { 11794 if (port != NULL && 11795 ctl_lun_map_to_port(port, lun->lun) >= CTL_MAX_LUNS) 11796 continue; 11797 retval += ctl_do_lun_reset(lun, io, ua_type); 11798 } 11799 mtx_unlock(&softc->ctl_lock); 11800 io->taskio.task_status = CTL_TASK_FUNCTION_COMPLETE; 11801 return (retval); 11802} 11803 11804/* 11805 * The LUN should always be set. The I/O is optional, and is used to 11806 * distinguish between I/Os sent by this initiator, and by other 11807 * initiators. We set unit attention for initiators other than this one. 11808 * SAM-3 is vague on this point. It does say that a unit attention should 11809 * be established for other initiators when a LUN is reset (see section 11810 * 5.7.3), but it doesn't specifically say that the unit attention should 11811 * be established for this particular initiator when a LUN is reset. Here 11812 * is the relevant text, from SAM-3 rev 8: 11813 * 11814 * 5.7.2 When a SCSI initiator port aborts its own tasks 11815 * 11816 * When a SCSI initiator port causes its own task(s) to be aborted, no 11817 * notification that the task(s) have been aborted shall be returned to 11818 * the SCSI initiator port other than the completion response for the 11819 * command or task management function action that caused the task(s) to 11820 * be aborted and notification(s) associated with related effects of the 11821 * action (e.g., a reset unit attention condition). 11822 * 11823 * XXX KDM for now, we're setting unit attention for all initiators. 11824 */ 11825static int 11826ctl_do_lun_reset(struct ctl_lun *lun, union ctl_io *io, ctl_ua_type ua_type) 11827{ 11828 union ctl_io *xio; 11829#if 0 11830 uint32_t initidx; 11831#endif 11832 int i; 11833 11834 mtx_lock(&lun->lun_lock); 11835 /* 11836 * Run through the OOA queue and abort each I/O. 11837 */ 11838 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 11839 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 11840 xio->io_hdr.flags |= CTL_FLAG_ABORT | CTL_FLAG_ABORT_STATUS; 11841 } 11842 11843 /* 11844 * This version sets unit attention for every 11845 */ 11846#if 0 11847 initidx = ctl_get_initindex(&io->io_hdr.nexus); 11848 ctl_est_ua_all(lun, initidx, ua_type); 11849#else 11850 ctl_est_ua_all(lun, -1, ua_type); 11851#endif 11852 11853 /* 11854 * A reset (any kind, really) clears reservations established with 11855 * RESERVE/RELEASE. It does not clear reservations established 11856 * with PERSISTENT RESERVE OUT, but we don't support that at the 11857 * moment anyway. See SPC-2, section 5.6. SPC-3 doesn't address 11858 * reservations made with the RESERVE/RELEASE commands, because 11859 * those commands are obsolete in SPC-3. 11860 */ 11861 lun->flags &= ~CTL_LUN_RESERVED; 11862 11863#ifdef CTL_WITH_CA 11864 for (i = 0; i < CTL_MAX_INITIATORS; i++) 11865 ctl_clear_mask(lun->have_ca, i); 11866#endif 11867 lun->prevent_count = 0; 11868 for (i = 0; i < CTL_MAX_INITIATORS; i++) 11869 ctl_clear_mask(lun->prevent, i); 11870 mtx_unlock(&lun->lun_lock); 11871 11872 return (0); 11873} 11874 11875static int 11876ctl_lun_reset(struct ctl_softc *softc, union ctl_io *io) 11877{ 11878 struct ctl_lun *lun; 11879 uint32_t targ_lun; 11880 int retval; 11881 11882 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 11883 mtx_lock(&softc->ctl_lock); 11884 if ((targ_lun >= CTL_MAX_LUNS) || 11885 (lun = softc->ctl_luns[targ_lun]) == NULL) { 11886 mtx_unlock(&softc->ctl_lock); 11887 io->taskio.task_status = CTL_TASK_LUN_DOES_NOT_EXIST; 11888 return (1); 11889 } 11890 retval = ctl_do_lun_reset(lun, io, CTL_UA_LUN_RESET); 11891 mtx_unlock(&softc->ctl_lock); 11892 io->taskio.task_status = CTL_TASK_FUNCTION_COMPLETE; 11893 11894 if ((io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) == 0) { 11895 union ctl_ha_msg msg_info; 11896 11897 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 11898 msg_info.hdr.nexus = io->io_hdr.nexus; 11899 msg_info.task.task_action = CTL_TASK_LUN_RESET; 11900 msg_info.hdr.original_sc = NULL; 11901 msg_info.hdr.serializing_sc = NULL; 11902 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 11903 sizeof(msg_info.task), M_WAITOK); 11904 } 11905 return (retval); 11906} 11907 11908static void 11909ctl_abort_tasks_lun(struct ctl_lun *lun, uint32_t targ_port, uint32_t init_id, 11910 int other_sc) 11911{ 11912 union ctl_io *xio; 11913 11914 mtx_assert(&lun->lun_lock, MA_OWNED); 11915 11916 /* 11917 * Run through the OOA queue and attempt to find the given I/O. 11918 * The target port, initiator ID, tag type and tag number have to 11919 * match the values that we got from the initiator. If we have an 11920 * untagged command to abort, simply abort the first untagged command 11921 * we come to. We only allow one untagged command at a time of course. 11922 */ 11923 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 11924 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 11925 11926 if ((targ_port == UINT32_MAX || 11927 targ_port == xio->io_hdr.nexus.targ_port) && 11928 (init_id == UINT32_MAX || 11929 init_id == xio->io_hdr.nexus.initid)) { 11930 if (targ_port != xio->io_hdr.nexus.targ_port || 11931 init_id != xio->io_hdr.nexus.initid) 11932 xio->io_hdr.flags |= CTL_FLAG_ABORT_STATUS; 11933 xio->io_hdr.flags |= CTL_FLAG_ABORT; 11934 if (!other_sc && !(lun->flags & CTL_LUN_PRIMARY_SC)) { 11935 union ctl_ha_msg msg_info; 11936 11937 msg_info.hdr.nexus = xio->io_hdr.nexus; 11938 msg_info.task.task_action = CTL_TASK_ABORT_TASK; 11939 msg_info.task.tag_num = xio->scsiio.tag_num; 11940 msg_info.task.tag_type = xio->scsiio.tag_type; 11941 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 11942 msg_info.hdr.original_sc = NULL; 11943 msg_info.hdr.serializing_sc = NULL; 11944 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 11945 sizeof(msg_info.task), M_NOWAIT); 11946 } 11947 } 11948 } 11949} 11950 11951static int 11952ctl_abort_task_set(union ctl_io *io) 11953{ 11954 struct ctl_softc *softc = control_softc; 11955 struct ctl_lun *lun; 11956 uint32_t targ_lun; 11957 11958 /* 11959 * Look up the LUN. 11960 */ 11961 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 11962 mtx_lock(&softc->ctl_lock); 11963 if ((targ_lun >= CTL_MAX_LUNS) || 11964 (lun = softc->ctl_luns[targ_lun]) == NULL) { 11965 mtx_unlock(&softc->ctl_lock); 11966 io->taskio.task_status = CTL_TASK_LUN_DOES_NOT_EXIST; 11967 return (1); 11968 } 11969 11970 mtx_lock(&lun->lun_lock); 11971 mtx_unlock(&softc->ctl_lock); 11972 if (io->taskio.task_action == CTL_TASK_ABORT_TASK_SET) { 11973 ctl_abort_tasks_lun(lun, io->io_hdr.nexus.targ_port, 11974 io->io_hdr.nexus.initid, 11975 (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) != 0); 11976 } else { /* CTL_TASK_CLEAR_TASK_SET */ 11977 ctl_abort_tasks_lun(lun, UINT32_MAX, UINT32_MAX, 11978 (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) != 0); 11979 } 11980 mtx_unlock(&lun->lun_lock); 11981 io->taskio.task_status = CTL_TASK_FUNCTION_COMPLETE; 11982 return (0); 11983} 11984 11985static int 11986ctl_i_t_nexus_reset(union ctl_io *io) 11987{ 11988 struct ctl_softc *softc = control_softc; 11989 struct ctl_lun *lun; 11990 uint32_t initidx; 11991 11992 if (!(io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)) { 11993 union ctl_ha_msg msg_info; 11994 11995 msg_info.hdr.nexus = io->io_hdr.nexus; 11996 msg_info.task.task_action = CTL_TASK_I_T_NEXUS_RESET; 11997 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 11998 msg_info.hdr.original_sc = NULL; 11999 msg_info.hdr.serializing_sc = NULL; 12000 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 12001 sizeof(msg_info.task), M_WAITOK); 12002 } 12003 12004 initidx = ctl_get_initindex(&io->io_hdr.nexus); 12005 mtx_lock(&softc->ctl_lock); 12006 STAILQ_FOREACH(lun, &softc->lun_list, links) { 12007 mtx_lock(&lun->lun_lock); 12008 ctl_abort_tasks_lun(lun, io->io_hdr.nexus.targ_port, 12009 io->io_hdr.nexus.initid, 1); 12010#ifdef CTL_WITH_CA 12011 ctl_clear_mask(lun->have_ca, initidx); 12012#endif 12013 if ((lun->flags & CTL_LUN_RESERVED) && (lun->res_idx == initidx)) 12014 lun->flags &= ~CTL_LUN_RESERVED; 12015 if (ctl_is_set(lun->prevent, initidx)) { 12016 ctl_clear_mask(lun->prevent, initidx); 12017 lun->prevent_count--; 12018 } 12019 ctl_est_ua(lun, initidx, CTL_UA_I_T_NEXUS_LOSS); 12020 mtx_unlock(&lun->lun_lock); 12021 } 12022 mtx_unlock(&softc->ctl_lock); 12023 io->taskio.task_status = CTL_TASK_FUNCTION_COMPLETE; 12024 return (0); 12025} 12026 12027static int 12028ctl_abort_task(union ctl_io *io) 12029{ 12030 union ctl_io *xio; 12031 struct ctl_lun *lun; 12032 struct ctl_softc *softc; 12033#if 0 12034 struct sbuf sb; 12035 char printbuf[128]; 12036#endif 12037 int found; 12038 uint32_t targ_lun; 12039 12040 softc = control_softc; 12041 found = 0; 12042 12043 /* 12044 * Look up the LUN. 12045 */ 12046 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12047 mtx_lock(&softc->ctl_lock); 12048 if ((targ_lun >= CTL_MAX_LUNS) || 12049 (lun = softc->ctl_luns[targ_lun]) == NULL) { 12050 mtx_unlock(&softc->ctl_lock); 12051 io->taskio.task_status = CTL_TASK_LUN_DOES_NOT_EXIST; 12052 return (1); 12053 } 12054 12055#if 0 12056 printf("ctl_abort_task: called for lun %lld, tag %d type %d\n", 12057 lun->lun, io->taskio.tag_num, io->taskio.tag_type); 12058#endif 12059 12060 mtx_lock(&lun->lun_lock); 12061 mtx_unlock(&softc->ctl_lock); 12062 /* 12063 * Run through the OOA queue and attempt to find the given I/O. 12064 * The target port, initiator ID, tag type and tag number have to 12065 * match the values that we got from the initiator. If we have an 12066 * untagged command to abort, simply abort the first untagged command 12067 * we come to. We only allow one untagged command at a time of course. 12068 */ 12069 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 12070 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 12071#if 0 12072 sbuf_new(&sb, printbuf, sizeof(printbuf), SBUF_FIXEDLEN); 12073 12074 sbuf_printf(&sb, "LUN %lld tag %d type %d%s%s%s%s: ", 12075 lun->lun, xio->scsiio.tag_num, 12076 xio->scsiio.tag_type, 12077 (xio->io_hdr.blocked_links.tqe_prev 12078 == NULL) ? "" : " BLOCKED", 12079 (xio->io_hdr.flags & 12080 CTL_FLAG_DMA_INPROG) ? " DMA" : "", 12081 (xio->io_hdr.flags & 12082 CTL_FLAG_ABORT) ? " ABORT" : "", 12083 (xio->io_hdr.flags & 12084 CTL_FLAG_IS_WAS_ON_RTR ? " RTR" : "")); 12085 ctl_scsi_command_string(&xio->scsiio, NULL, &sb); 12086 sbuf_finish(&sb); 12087 printf("%s\n", sbuf_data(&sb)); 12088#endif 12089 12090 if ((xio->io_hdr.nexus.targ_port != io->io_hdr.nexus.targ_port) 12091 || (xio->io_hdr.nexus.initid != io->io_hdr.nexus.initid) 12092 || (xio->io_hdr.flags & CTL_FLAG_ABORT)) 12093 continue; 12094 12095 /* 12096 * If the abort says that the task is untagged, the 12097 * task in the queue must be untagged. Otherwise, 12098 * we just check to see whether the tag numbers 12099 * match. This is because the QLogic firmware 12100 * doesn't pass back the tag type in an abort 12101 * request. 12102 */ 12103#if 0 12104 if (((xio->scsiio.tag_type == CTL_TAG_UNTAGGED) 12105 && (io->taskio.tag_type == CTL_TAG_UNTAGGED)) 12106 || (xio->scsiio.tag_num == io->taskio.tag_num)) 12107#endif 12108 /* 12109 * XXX KDM we've got problems with FC, because it 12110 * doesn't send down a tag type with aborts. So we 12111 * can only really go by the tag number... 12112 * This may cause problems with parallel SCSI. 12113 * Need to figure that out!! 12114 */ 12115 if (xio->scsiio.tag_num == io->taskio.tag_num) { 12116 xio->io_hdr.flags |= CTL_FLAG_ABORT; 12117 found = 1; 12118 if ((io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) == 0 && 12119 !(lun->flags & CTL_LUN_PRIMARY_SC)) { 12120 union ctl_ha_msg msg_info; 12121 12122 msg_info.hdr.nexus = io->io_hdr.nexus; 12123 msg_info.task.task_action = CTL_TASK_ABORT_TASK; 12124 msg_info.task.tag_num = io->taskio.tag_num; 12125 msg_info.task.tag_type = io->taskio.tag_type; 12126 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 12127 msg_info.hdr.original_sc = NULL; 12128 msg_info.hdr.serializing_sc = NULL; 12129#if 0 12130 printf("Sent Abort to other side\n"); 12131#endif 12132 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 12133 sizeof(msg_info.task), M_NOWAIT); 12134 } 12135#if 0 12136 printf("ctl_abort_task: found I/O to abort\n"); 12137#endif 12138 } 12139 } 12140 mtx_unlock(&lun->lun_lock); 12141 12142 if (found == 0) { 12143 /* 12144 * This isn't really an error. It's entirely possible for 12145 * the abort and command completion to cross on the wire. 12146 * This is more of an informative/diagnostic error. 12147 */ 12148#if 0 12149 printf("ctl_abort_task: ABORT sent for nonexistent I/O: " 12150 "%u:%u:%u tag %d type %d\n", 12151 io->io_hdr.nexus.initid, 12152 io->io_hdr.nexus.targ_port, 12153 io->io_hdr.nexus.targ_lun, io->taskio.tag_num, 12154 io->taskio.tag_type); 12155#endif 12156 } 12157 io->taskio.task_status = CTL_TASK_FUNCTION_COMPLETE; 12158 return (0); 12159} 12160 12161static int 12162ctl_query_task(union ctl_io *io, int task_set) 12163{ 12164 union ctl_io *xio; 12165 struct ctl_lun *lun; 12166 struct ctl_softc *softc; 12167 int found = 0; 12168 uint32_t targ_lun; 12169 12170 softc = control_softc; 12171 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12172 mtx_lock(&softc->ctl_lock); 12173 if ((targ_lun >= CTL_MAX_LUNS) || 12174 (lun = softc->ctl_luns[targ_lun]) == NULL) { 12175 mtx_unlock(&softc->ctl_lock); 12176 io->taskio.task_status = CTL_TASK_LUN_DOES_NOT_EXIST; 12177 return (1); 12178 } 12179 mtx_lock(&lun->lun_lock); 12180 mtx_unlock(&softc->ctl_lock); 12181 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 12182 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 12183 12184 if ((xio->io_hdr.nexus.targ_port != io->io_hdr.nexus.targ_port) 12185 || (xio->io_hdr.nexus.initid != io->io_hdr.nexus.initid) 12186 || (xio->io_hdr.flags & CTL_FLAG_ABORT)) 12187 continue; 12188 12189 if (task_set || xio->scsiio.tag_num == io->taskio.tag_num) { 12190 found = 1; 12191 break; 12192 } 12193 } 12194 mtx_unlock(&lun->lun_lock); 12195 if (found) 12196 io->taskio.task_status = CTL_TASK_FUNCTION_SUCCEEDED; 12197 else 12198 io->taskio.task_status = CTL_TASK_FUNCTION_COMPLETE; 12199 return (0); 12200} 12201 12202static int 12203ctl_query_async_event(union ctl_io *io) 12204{ 12205 struct ctl_lun *lun; 12206 struct ctl_softc *softc; 12207 ctl_ua_type ua; 12208 uint32_t targ_lun, initidx; 12209 12210 softc = control_softc; 12211 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12212 mtx_lock(&softc->ctl_lock); 12213 if ((targ_lun >= CTL_MAX_LUNS) || 12214 (lun = softc->ctl_luns[targ_lun]) == NULL) { 12215 mtx_unlock(&softc->ctl_lock); 12216 io->taskio.task_status = CTL_TASK_LUN_DOES_NOT_EXIST; 12217 return (1); 12218 } 12219 mtx_lock(&lun->lun_lock); 12220 mtx_unlock(&softc->ctl_lock); 12221 initidx = ctl_get_initindex(&io->io_hdr.nexus); 12222 ua = ctl_build_qae(lun, initidx, io->taskio.task_resp); 12223 mtx_unlock(&lun->lun_lock); 12224 if (ua != CTL_UA_NONE) 12225 io->taskio.task_status = CTL_TASK_FUNCTION_SUCCEEDED; 12226 else 12227 io->taskio.task_status = CTL_TASK_FUNCTION_COMPLETE; 12228 return (0); 12229} 12230 12231static void 12232ctl_run_task(union ctl_io *io) 12233{ 12234 struct ctl_softc *softc = control_softc; 12235 int retval = 1; 12236 12237 CTL_DEBUG_PRINT(("ctl_run_task\n")); 12238 KASSERT(io->io_hdr.io_type == CTL_IO_TASK, 12239 ("ctl_run_task: Unextected io_type %d\n", io->io_hdr.io_type)); 12240 io->taskio.task_status = CTL_TASK_FUNCTION_NOT_SUPPORTED; 12241 bzero(io->taskio.task_resp, sizeof(io->taskio.task_resp)); 12242 switch (io->taskio.task_action) { 12243 case CTL_TASK_ABORT_TASK: 12244 retval = ctl_abort_task(io); 12245 break; 12246 case CTL_TASK_ABORT_TASK_SET: 12247 case CTL_TASK_CLEAR_TASK_SET: 12248 retval = ctl_abort_task_set(io); 12249 break; 12250 case CTL_TASK_CLEAR_ACA: 12251 break; 12252 case CTL_TASK_I_T_NEXUS_RESET: 12253 retval = ctl_i_t_nexus_reset(io); 12254 break; 12255 case CTL_TASK_LUN_RESET: 12256 retval = ctl_lun_reset(softc, io); 12257 break; 12258 case CTL_TASK_TARGET_RESET: 12259 retval = ctl_target_reset(softc, io, CTL_UA_TARG_RESET); 12260 break; 12261 case CTL_TASK_BUS_RESET: 12262 retval = ctl_bus_reset(softc, io); 12263 break; 12264 case CTL_TASK_PORT_LOGIN: 12265 break; 12266 case CTL_TASK_PORT_LOGOUT: 12267 break; 12268 case CTL_TASK_QUERY_TASK: 12269 retval = ctl_query_task(io, 0); 12270 break; 12271 case CTL_TASK_QUERY_TASK_SET: 12272 retval = ctl_query_task(io, 1); 12273 break; 12274 case CTL_TASK_QUERY_ASYNC_EVENT: 12275 retval = ctl_query_async_event(io); 12276 break; 12277 default: 12278 printf("%s: got unknown task management event %d\n", 12279 __func__, io->taskio.task_action); 12280 break; 12281 } 12282 if (retval == 0) 12283 io->io_hdr.status = CTL_SUCCESS; 12284 else 12285 io->io_hdr.status = CTL_ERROR; 12286 ctl_done(io); 12287} 12288 12289/* 12290 * For HA operation. Handle commands that come in from the other 12291 * controller. 12292 */ 12293static void 12294ctl_handle_isc(union ctl_io *io) 12295{ 12296 int free_io; 12297 struct ctl_lun *lun; 12298 struct ctl_softc *softc = control_softc; 12299 uint32_t targ_lun; 12300 12301 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12302 lun = softc->ctl_luns[targ_lun]; 12303 12304 switch (io->io_hdr.msg_type) { 12305 case CTL_MSG_SERIALIZE: 12306 free_io = ctl_serialize_other_sc_cmd(&io->scsiio); 12307 break; 12308 case CTL_MSG_R2R: { 12309 const struct ctl_cmd_entry *entry; 12310 12311 /* 12312 * This is only used in SER_ONLY mode. 12313 */ 12314 free_io = 0; 12315 entry = ctl_get_cmd_entry(&io->scsiio, NULL); 12316 mtx_lock(&lun->lun_lock); 12317 if (ctl_scsiio_lun_check(lun, 12318 entry, (struct ctl_scsiio *)io) != 0) { 12319 mtx_unlock(&lun->lun_lock); 12320 ctl_done(io); 12321 break; 12322 } 12323 io->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 12324 mtx_unlock(&lun->lun_lock); 12325 ctl_enqueue_rtr(io); 12326 break; 12327 } 12328 case CTL_MSG_FINISH_IO: 12329 if (softc->ha_mode == CTL_HA_MODE_XFER) { 12330 free_io = 0; 12331 ctl_done(io); 12332 } else { 12333 free_io = 1; 12334 mtx_lock(&lun->lun_lock); 12335 TAILQ_REMOVE(&lun->ooa_queue, &io->io_hdr, 12336 ooa_links); 12337 ctl_check_blocked(lun); 12338 mtx_unlock(&lun->lun_lock); 12339 } 12340 break; 12341 case CTL_MSG_PERS_ACTION: 12342 ctl_hndl_per_res_out_on_other_sc( 12343 (union ctl_ha_msg *)&io->presio.pr_msg); 12344 free_io = 1; 12345 break; 12346 case CTL_MSG_BAD_JUJU: 12347 free_io = 0; 12348 ctl_done(io); 12349 break; 12350 case CTL_MSG_DATAMOVE: 12351 /* Only used in XFER mode */ 12352 free_io = 0; 12353 ctl_datamove_remote(io); 12354 break; 12355 case CTL_MSG_DATAMOVE_DONE: 12356 /* Only used in XFER mode */ 12357 free_io = 0; 12358 io->scsiio.be_move_done(io); 12359 break; 12360 case CTL_MSG_FAILOVER: 12361 ctl_failover_lun(io); 12362 free_io = 1; 12363 break; 12364 default: 12365 free_io = 1; 12366 printf("%s: Invalid message type %d\n", 12367 __func__, io->io_hdr.msg_type); 12368 break; 12369 } 12370 if (free_io) 12371 ctl_free_io(io); 12372 12373} 12374 12375 12376/* 12377 * Returns the match type in the case of a match, or CTL_LUN_PAT_NONE if 12378 * there is no match. 12379 */ 12380static ctl_lun_error_pattern 12381ctl_cmd_pattern_match(struct ctl_scsiio *ctsio, struct ctl_error_desc *desc) 12382{ 12383 const struct ctl_cmd_entry *entry; 12384 ctl_lun_error_pattern filtered_pattern, pattern; 12385 12386 pattern = desc->error_pattern; 12387 12388 /* 12389 * XXX KDM we need more data passed into this function to match a 12390 * custom pattern, and we actually need to implement custom pattern 12391 * matching. 12392 */ 12393 if (pattern & CTL_LUN_PAT_CMD) 12394 return (CTL_LUN_PAT_CMD); 12395 12396 if ((pattern & CTL_LUN_PAT_MASK) == CTL_LUN_PAT_ANY) 12397 return (CTL_LUN_PAT_ANY); 12398 12399 entry = ctl_get_cmd_entry(ctsio, NULL); 12400 12401 filtered_pattern = entry->pattern & pattern; 12402 12403 /* 12404 * If the user requested specific flags in the pattern (e.g. 12405 * CTL_LUN_PAT_RANGE), make sure the command supports all of those 12406 * flags. 12407 * 12408 * If the user did not specify any flags, it doesn't matter whether 12409 * or not the command supports the flags. 12410 */ 12411 if ((filtered_pattern & ~CTL_LUN_PAT_MASK) != 12412 (pattern & ~CTL_LUN_PAT_MASK)) 12413 return (CTL_LUN_PAT_NONE); 12414 12415 /* 12416 * If the user asked for a range check, see if the requested LBA 12417 * range overlaps with this command's LBA range. 12418 */ 12419 if (filtered_pattern & CTL_LUN_PAT_RANGE) { 12420 uint64_t lba1; 12421 uint64_t len1; 12422 ctl_action action; 12423 int retval; 12424 12425 retval = ctl_get_lba_len((union ctl_io *)ctsio, &lba1, &len1); 12426 if (retval != 0) 12427 return (CTL_LUN_PAT_NONE); 12428 12429 action = ctl_extent_check_lba(lba1, len1, desc->lba_range.lba, 12430 desc->lba_range.len, FALSE); 12431 /* 12432 * A "pass" means that the LBA ranges don't overlap, so 12433 * this doesn't match the user's range criteria. 12434 */ 12435 if (action == CTL_ACTION_PASS) 12436 return (CTL_LUN_PAT_NONE); 12437 } 12438 12439 return (filtered_pattern); 12440} 12441 12442static void 12443ctl_inject_error(struct ctl_lun *lun, union ctl_io *io) 12444{ 12445 struct ctl_error_desc *desc, *desc2; 12446 12447 mtx_assert(&lun->lun_lock, MA_OWNED); 12448 12449 STAILQ_FOREACH_SAFE(desc, &lun->error_list, links, desc2) { 12450 ctl_lun_error_pattern pattern; 12451 /* 12452 * Check to see whether this particular command matches 12453 * the pattern in the descriptor. 12454 */ 12455 pattern = ctl_cmd_pattern_match(&io->scsiio, desc); 12456 if ((pattern & CTL_LUN_PAT_MASK) == CTL_LUN_PAT_NONE) 12457 continue; 12458 12459 switch (desc->lun_error & CTL_LUN_INJ_TYPE) { 12460 case CTL_LUN_INJ_ABORTED: 12461 ctl_set_aborted(&io->scsiio); 12462 break; 12463 case CTL_LUN_INJ_MEDIUM_ERR: 12464 ctl_set_medium_error(&io->scsiio, 12465 (io->io_hdr.flags & CTL_FLAG_DATA_MASK) != 12466 CTL_FLAG_DATA_OUT); 12467 break; 12468 case CTL_LUN_INJ_UA: 12469 /* 29h/00h POWER ON, RESET, OR BUS DEVICE RESET 12470 * OCCURRED */ 12471 ctl_set_ua(&io->scsiio, 0x29, 0x00); 12472 break; 12473 case CTL_LUN_INJ_CUSTOM: 12474 /* 12475 * We're assuming the user knows what he is doing. 12476 * Just copy the sense information without doing 12477 * checks. 12478 */ 12479 bcopy(&desc->custom_sense, &io->scsiio.sense_data, 12480 MIN(sizeof(desc->custom_sense), 12481 sizeof(io->scsiio.sense_data))); 12482 io->scsiio.scsi_status = SCSI_STATUS_CHECK_COND; 12483 io->scsiio.sense_len = SSD_FULL_SIZE; 12484 io->io_hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 12485 break; 12486 case CTL_LUN_INJ_NONE: 12487 default: 12488 /* 12489 * If this is an error injection type we don't know 12490 * about, clear the continuous flag (if it is set) 12491 * so it will get deleted below. 12492 */ 12493 desc->lun_error &= ~CTL_LUN_INJ_CONTINUOUS; 12494 break; 12495 } 12496 /* 12497 * By default, each error injection action is a one-shot 12498 */ 12499 if (desc->lun_error & CTL_LUN_INJ_CONTINUOUS) 12500 continue; 12501 12502 STAILQ_REMOVE(&lun->error_list, desc, ctl_error_desc, links); 12503 12504 free(desc, M_CTL); 12505 } 12506} 12507 12508#ifdef CTL_IO_DELAY 12509static void 12510ctl_datamove_timer_wakeup(void *arg) 12511{ 12512 union ctl_io *io; 12513 12514 io = (union ctl_io *)arg; 12515 12516 ctl_datamove(io); 12517} 12518#endif /* CTL_IO_DELAY */ 12519 12520void 12521ctl_datamove(union ctl_io *io) 12522{ 12523 struct ctl_lun *lun; 12524 void (*fe_datamove)(union ctl_io *io); 12525 12526 mtx_assert(&control_softc->ctl_lock, MA_NOTOWNED); 12527 12528 CTL_DEBUG_PRINT(("ctl_datamove\n")); 12529 12530 lun = (struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 12531#ifdef CTL_TIME_IO 12532 if ((time_uptime - io->io_hdr.start_time) > ctl_time_io_secs) { 12533 char str[256]; 12534 char path_str[64]; 12535 struct sbuf sb; 12536 12537 ctl_scsi_path_string(io, path_str, sizeof(path_str)); 12538 sbuf_new(&sb, str, sizeof(str), SBUF_FIXEDLEN); 12539 12540 sbuf_cat(&sb, path_str); 12541 switch (io->io_hdr.io_type) { 12542 case CTL_IO_SCSI: 12543 ctl_scsi_command_string(&io->scsiio, NULL, &sb); 12544 sbuf_printf(&sb, "\n"); 12545 sbuf_cat(&sb, path_str); 12546 sbuf_printf(&sb, "Tag: 0x%04x, type %d\n", 12547 io->scsiio.tag_num, io->scsiio.tag_type); 12548 break; 12549 case CTL_IO_TASK: 12550 sbuf_printf(&sb, "Task I/O type: %d, Tag: 0x%04x, " 12551 "Tag Type: %d\n", io->taskio.task_action, 12552 io->taskio.tag_num, io->taskio.tag_type); 12553 break; 12554 default: 12555 printf("Invalid CTL I/O type %d\n", io->io_hdr.io_type); 12556 panic("Invalid CTL I/O type %d\n", io->io_hdr.io_type); 12557 break; 12558 } 12559 sbuf_cat(&sb, path_str); 12560 sbuf_printf(&sb, "ctl_datamove: %jd seconds\n", 12561 (intmax_t)time_uptime - io->io_hdr.start_time); 12562 sbuf_finish(&sb); 12563 printf("%s", sbuf_data(&sb)); 12564 } 12565#endif /* CTL_TIME_IO */ 12566 12567#ifdef CTL_IO_DELAY 12568 if (io->io_hdr.flags & CTL_FLAG_DELAY_DONE) { 12569 io->io_hdr.flags &= ~CTL_FLAG_DELAY_DONE; 12570 } else { 12571 if ((lun != NULL) 12572 && (lun->delay_info.datamove_delay > 0)) { 12573 12574 callout_init(&io->io_hdr.delay_callout, /*mpsafe*/ 1); 12575 io->io_hdr.flags |= CTL_FLAG_DELAY_DONE; 12576 callout_reset(&io->io_hdr.delay_callout, 12577 lun->delay_info.datamove_delay * hz, 12578 ctl_datamove_timer_wakeup, io); 12579 if (lun->delay_info.datamove_type == 12580 CTL_DELAY_TYPE_ONESHOT) 12581 lun->delay_info.datamove_delay = 0; 12582 return; 12583 } 12584 } 12585#endif 12586 12587 /* 12588 * This command has been aborted. Set the port status, so we fail 12589 * the data move. 12590 */ 12591 if (io->io_hdr.flags & CTL_FLAG_ABORT) { 12592 printf("ctl_datamove: tag 0x%04x on (%u:%u:%u) aborted\n", 12593 io->scsiio.tag_num, io->io_hdr.nexus.initid, 12594 io->io_hdr.nexus.targ_port, 12595 io->io_hdr.nexus.targ_lun); 12596 io->io_hdr.port_status = 31337; 12597 /* 12598 * Note that the backend, in this case, will get the 12599 * callback in its context. In other cases it may get 12600 * called in the frontend's interrupt thread context. 12601 */ 12602 io->scsiio.be_move_done(io); 12603 return; 12604 } 12605 12606 /* Don't confuse frontend with zero length data move. */ 12607 if (io->scsiio.kern_data_len == 0) { 12608 io->scsiio.be_move_done(io); 12609 return; 12610 } 12611 12612 fe_datamove = ctl_io_port(&io->io_hdr)->fe_datamove; 12613 fe_datamove(io); 12614} 12615 12616static void 12617ctl_send_datamove_done(union ctl_io *io, int have_lock) 12618{ 12619 union ctl_ha_msg msg; 12620#ifdef CTL_TIME_IO 12621 struct bintime cur_bt; 12622#endif 12623 12624 memset(&msg, 0, sizeof(msg)); 12625 msg.hdr.msg_type = CTL_MSG_DATAMOVE_DONE; 12626 msg.hdr.original_sc = io; 12627 msg.hdr.serializing_sc = io->io_hdr.serializing_sc; 12628 msg.hdr.nexus = io->io_hdr.nexus; 12629 msg.hdr.status = io->io_hdr.status; 12630 msg.scsi.tag_num = io->scsiio.tag_num; 12631 msg.scsi.tag_type = io->scsiio.tag_type; 12632 msg.scsi.scsi_status = io->scsiio.scsi_status; 12633 memcpy(&msg.scsi.sense_data, &io->scsiio.sense_data, 12634 io->scsiio.sense_len); 12635 msg.scsi.sense_len = io->scsiio.sense_len; 12636 msg.scsi.sense_residual = io->scsiio.sense_residual; 12637 msg.scsi.fetd_status = io->io_hdr.port_status; 12638 msg.scsi.residual = io->scsiio.residual; 12639 io->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 12640 if (io->io_hdr.flags & CTL_FLAG_FAILOVER) { 12641 ctl_failover_io(io, /*have_lock*/ have_lock); 12642 return; 12643 } 12644 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, 12645 sizeof(msg.scsi) - sizeof(msg.scsi.sense_data) + 12646 msg.scsi.sense_len, M_WAITOK); 12647 12648#ifdef CTL_TIME_IO 12649 getbinuptime(&cur_bt); 12650 bintime_sub(&cur_bt, &io->io_hdr.dma_start_bt); 12651 bintime_add(&io->io_hdr.dma_bt, &cur_bt); 12652#endif 12653 io->io_hdr.num_dmas++; 12654} 12655 12656/* 12657 * The DMA to the remote side is done, now we need to tell the other side 12658 * we're done so it can continue with its data movement. 12659 */ 12660static void 12661ctl_datamove_remote_write_cb(struct ctl_ha_dt_req *rq) 12662{ 12663 union ctl_io *io; 12664 int i; 12665 12666 io = rq->context; 12667 12668 if (rq->ret != CTL_HA_STATUS_SUCCESS) { 12669 printf("%s: ISC DMA write failed with error %d", __func__, 12670 rq->ret); 12671 ctl_set_internal_failure(&io->scsiio, 12672 /*sks_valid*/ 1, 12673 /*retry_count*/ rq->ret); 12674 } 12675 12676 ctl_dt_req_free(rq); 12677 12678 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 12679 free(io->io_hdr.local_sglist[i].addr, M_CTL); 12680 free(io->io_hdr.remote_sglist, M_CTL); 12681 io->io_hdr.remote_sglist = NULL; 12682 io->io_hdr.local_sglist = NULL; 12683 12684 /* 12685 * The data is in local and remote memory, so now we need to send 12686 * status (good or back) back to the other side. 12687 */ 12688 ctl_send_datamove_done(io, /*have_lock*/ 0); 12689} 12690 12691/* 12692 * We've moved the data from the host/controller into local memory. Now we 12693 * need to push it over to the remote controller's memory. 12694 */ 12695static int 12696ctl_datamove_remote_dm_write_cb(union ctl_io *io) 12697{ 12698 int retval; 12699 12700 retval = ctl_datamove_remote_xfer(io, CTL_HA_DT_CMD_WRITE, 12701 ctl_datamove_remote_write_cb); 12702 return (retval); 12703} 12704 12705static void 12706ctl_datamove_remote_write(union ctl_io *io) 12707{ 12708 int retval; 12709 void (*fe_datamove)(union ctl_io *io); 12710 12711 /* 12712 * - Get the data from the host/HBA into local memory. 12713 * - DMA memory from the local controller to the remote controller. 12714 * - Send status back to the remote controller. 12715 */ 12716 12717 retval = ctl_datamove_remote_sgl_setup(io); 12718 if (retval != 0) 12719 return; 12720 12721 /* Switch the pointer over so the FETD knows what to do */ 12722 io->scsiio.kern_data_ptr = (uint8_t *)io->io_hdr.local_sglist; 12723 12724 /* 12725 * Use a custom move done callback, since we need to send completion 12726 * back to the other controller, not to the backend on this side. 12727 */ 12728 io->scsiio.be_move_done = ctl_datamove_remote_dm_write_cb; 12729 12730 fe_datamove = ctl_io_port(&io->io_hdr)->fe_datamove; 12731 fe_datamove(io); 12732} 12733 12734static int 12735ctl_datamove_remote_dm_read_cb(union ctl_io *io) 12736{ 12737#if 0 12738 char str[256]; 12739 char path_str[64]; 12740 struct sbuf sb; 12741#endif 12742 int i; 12743 12744 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 12745 free(io->io_hdr.local_sglist[i].addr, M_CTL); 12746 free(io->io_hdr.remote_sglist, M_CTL); 12747 io->io_hdr.remote_sglist = NULL; 12748 io->io_hdr.local_sglist = NULL; 12749 12750#if 0 12751 scsi_path_string(io, path_str, sizeof(path_str)); 12752 sbuf_new(&sb, str, sizeof(str), SBUF_FIXEDLEN); 12753 sbuf_cat(&sb, path_str); 12754 scsi_command_string(&io->scsiio, NULL, &sb); 12755 sbuf_printf(&sb, "\n"); 12756 sbuf_cat(&sb, path_str); 12757 sbuf_printf(&sb, "Tag: 0x%04x, type %d\n", 12758 io->scsiio.tag_num, io->scsiio.tag_type); 12759 sbuf_cat(&sb, path_str); 12760 sbuf_printf(&sb, "%s: flags %#x, status %#x\n", __func__, 12761 io->io_hdr.flags, io->io_hdr.status); 12762 sbuf_finish(&sb); 12763 printk("%s", sbuf_data(&sb)); 12764#endif 12765 12766 12767 /* 12768 * The read is done, now we need to send status (good or bad) back 12769 * to the other side. 12770 */ 12771 ctl_send_datamove_done(io, /*have_lock*/ 0); 12772 12773 return (0); 12774} 12775 12776static void 12777ctl_datamove_remote_read_cb(struct ctl_ha_dt_req *rq) 12778{ 12779 union ctl_io *io; 12780 void (*fe_datamove)(union ctl_io *io); 12781 12782 io = rq->context; 12783 12784 if (rq->ret != CTL_HA_STATUS_SUCCESS) { 12785 printf("%s: ISC DMA read failed with error %d\n", __func__, 12786 rq->ret); 12787 ctl_set_internal_failure(&io->scsiio, 12788 /*sks_valid*/ 1, 12789 /*retry_count*/ rq->ret); 12790 } 12791 12792 ctl_dt_req_free(rq); 12793 12794 /* Switch the pointer over so the FETD knows what to do */ 12795 io->scsiio.kern_data_ptr = (uint8_t *)io->io_hdr.local_sglist; 12796 12797 /* 12798 * Use a custom move done callback, since we need to send completion 12799 * back to the other controller, not to the backend on this side. 12800 */ 12801 io->scsiio.be_move_done = ctl_datamove_remote_dm_read_cb; 12802 12803 /* XXX KDM add checks like the ones in ctl_datamove? */ 12804 12805 fe_datamove = ctl_io_port(&io->io_hdr)->fe_datamove; 12806 fe_datamove(io); 12807} 12808 12809static int 12810ctl_datamove_remote_sgl_setup(union ctl_io *io) 12811{ 12812 struct ctl_sg_entry *local_sglist; 12813 uint32_t len_to_go; 12814 int retval; 12815 int i; 12816 12817 retval = 0; 12818 local_sglist = io->io_hdr.local_sglist; 12819 len_to_go = io->scsiio.kern_data_len; 12820 12821 /* 12822 * The difficult thing here is that the size of the various 12823 * S/G segments may be different than the size from the 12824 * remote controller. That'll make it harder when DMAing 12825 * the data back to the other side. 12826 */ 12827 for (i = 0; len_to_go > 0; i++) { 12828 local_sglist[i].len = MIN(len_to_go, CTL_HA_DATAMOVE_SEGMENT); 12829 local_sglist[i].addr = 12830 malloc(local_sglist[i].len, M_CTL, M_WAITOK); 12831 12832 len_to_go -= local_sglist[i].len; 12833 } 12834 /* 12835 * Reset the number of S/G entries accordingly. The original 12836 * number of S/G entries is available in rem_sg_entries. 12837 */ 12838 io->scsiio.kern_sg_entries = i; 12839 12840#if 0 12841 printf("%s: kern_sg_entries = %d\n", __func__, 12842 io->scsiio.kern_sg_entries); 12843 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 12844 printf("%s: sg[%d] = %p, %lu\n", __func__, i, 12845 local_sglist[i].addr, local_sglist[i].len); 12846#endif 12847 12848 return (retval); 12849} 12850 12851static int 12852ctl_datamove_remote_xfer(union ctl_io *io, unsigned command, 12853 ctl_ha_dt_cb callback) 12854{ 12855 struct ctl_ha_dt_req *rq; 12856 struct ctl_sg_entry *remote_sglist, *local_sglist; 12857 uint32_t local_used, remote_used, total_used; 12858 int i, j, isc_ret; 12859 12860 rq = ctl_dt_req_alloc(); 12861 12862 /* 12863 * If we failed to allocate the request, and if the DMA didn't fail 12864 * anyway, set busy status. This is just a resource allocation 12865 * failure. 12866 */ 12867 if ((rq == NULL) 12868 && ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE && 12869 (io->io_hdr.status & CTL_STATUS_MASK) != CTL_SUCCESS)) 12870 ctl_set_busy(&io->scsiio); 12871 12872 if ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE && 12873 (io->io_hdr.status & CTL_STATUS_MASK) != CTL_SUCCESS) { 12874 12875 if (rq != NULL) 12876 ctl_dt_req_free(rq); 12877 12878 /* 12879 * The data move failed. We need to return status back 12880 * to the other controller. No point in trying to DMA 12881 * data to the remote controller. 12882 */ 12883 12884 ctl_send_datamove_done(io, /*have_lock*/ 0); 12885 12886 return (1); 12887 } 12888 12889 local_sglist = io->io_hdr.local_sglist; 12890 remote_sglist = io->io_hdr.remote_sglist; 12891 local_used = 0; 12892 remote_used = 0; 12893 total_used = 0; 12894 12895 /* 12896 * Pull/push the data over the wire from/to the other controller. 12897 * This takes into account the possibility that the local and 12898 * remote sglists may not be identical in terms of the size of 12899 * the elements and the number of elements. 12900 * 12901 * One fundamental assumption here is that the length allocated for 12902 * both the local and remote sglists is identical. Otherwise, we've 12903 * essentially got a coding error of some sort. 12904 */ 12905 isc_ret = CTL_HA_STATUS_SUCCESS; 12906 for (i = 0, j = 0; total_used < io->scsiio.kern_data_len; ) { 12907 uint32_t cur_len; 12908 uint8_t *tmp_ptr; 12909 12910 rq->command = command; 12911 rq->context = io; 12912 12913 /* 12914 * Both pointers should be aligned. But it is possible 12915 * that the allocation length is not. They should both 12916 * also have enough slack left over at the end, though, 12917 * to round up to the next 8 byte boundary. 12918 */ 12919 cur_len = MIN(local_sglist[i].len - local_used, 12920 remote_sglist[j].len - remote_used); 12921 rq->size = cur_len; 12922 12923 tmp_ptr = (uint8_t *)local_sglist[i].addr; 12924 tmp_ptr += local_used; 12925 12926#if 0 12927 /* Use physical addresses when talking to ISC hardware */ 12928 if ((io->io_hdr.flags & CTL_FLAG_BUS_ADDR) == 0) { 12929 /* XXX KDM use busdma */ 12930 rq->local = vtophys(tmp_ptr); 12931 } else 12932 rq->local = tmp_ptr; 12933#else 12934 KASSERT((io->io_hdr.flags & CTL_FLAG_BUS_ADDR) == 0, 12935 ("HA does not support BUS_ADDR")); 12936 rq->local = tmp_ptr; 12937#endif 12938 12939 tmp_ptr = (uint8_t *)remote_sglist[j].addr; 12940 tmp_ptr += remote_used; 12941 rq->remote = tmp_ptr; 12942 12943 rq->callback = NULL; 12944 12945 local_used += cur_len; 12946 if (local_used >= local_sglist[i].len) { 12947 i++; 12948 local_used = 0; 12949 } 12950 12951 remote_used += cur_len; 12952 if (remote_used >= remote_sglist[j].len) { 12953 j++; 12954 remote_used = 0; 12955 } 12956 total_used += cur_len; 12957 12958 if (total_used >= io->scsiio.kern_data_len) 12959 rq->callback = callback; 12960 12961#if 0 12962 printf("%s: %s: local %p remote %p size %d\n", __func__, 12963 (command == CTL_HA_DT_CMD_WRITE) ? "WRITE" : "READ", 12964 rq->local, rq->remote, rq->size); 12965#endif 12966 12967 isc_ret = ctl_dt_single(rq); 12968 if (isc_ret > CTL_HA_STATUS_SUCCESS) 12969 break; 12970 } 12971 if (isc_ret != CTL_HA_STATUS_WAIT) { 12972 rq->ret = isc_ret; 12973 callback(rq); 12974 } 12975 12976 return (0); 12977} 12978 12979static void 12980ctl_datamove_remote_read(union ctl_io *io) 12981{ 12982 int retval; 12983 int i; 12984 12985 /* 12986 * This will send an error to the other controller in the case of a 12987 * failure. 12988 */ 12989 retval = ctl_datamove_remote_sgl_setup(io); 12990 if (retval != 0) 12991 return; 12992 12993 retval = ctl_datamove_remote_xfer(io, CTL_HA_DT_CMD_READ, 12994 ctl_datamove_remote_read_cb); 12995 if (retval != 0) { 12996 /* 12997 * Make sure we free memory if there was an error.. The 12998 * ctl_datamove_remote_xfer() function will send the 12999 * datamove done message, or call the callback with an 13000 * error if there is a problem. 13001 */ 13002 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 13003 free(io->io_hdr.local_sglist[i].addr, M_CTL); 13004 free(io->io_hdr.remote_sglist, M_CTL); 13005 io->io_hdr.remote_sglist = NULL; 13006 io->io_hdr.local_sglist = NULL; 13007 } 13008} 13009 13010/* 13011 * Process a datamove request from the other controller. This is used for 13012 * XFER mode only, not SER_ONLY mode. For writes, we DMA into local memory 13013 * first. Once that is complete, the data gets DMAed into the remote 13014 * controller's memory. For reads, we DMA from the remote controller's 13015 * memory into our memory first, and then move it out to the FETD. 13016 */ 13017static void 13018ctl_datamove_remote(union ctl_io *io) 13019{ 13020 13021 mtx_assert(&control_softc->ctl_lock, MA_NOTOWNED); 13022 13023 if (io->io_hdr.flags & CTL_FLAG_FAILOVER) { 13024 ctl_failover_io(io, /*have_lock*/ 0); 13025 return; 13026 } 13027 13028 /* 13029 * Note that we look for an aborted I/O here, but don't do some of 13030 * the other checks that ctl_datamove() normally does. 13031 * We don't need to run the datamove delay code, since that should 13032 * have been done if need be on the other controller. 13033 */ 13034 if (io->io_hdr.flags & CTL_FLAG_ABORT) { 13035 printf("%s: tag 0x%04x on (%u:%u:%u) aborted\n", __func__, 13036 io->scsiio.tag_num, io->io_hdr.nexus.initid, 13037 io->io_hdr.nexus.targ_port, 13038 io->io_hdr.nexus.targ_lun); 13039 io->io_hdr.port_status = 31338; 13040 ctl_send_datamove_done(io, /*have_lock*/ 0); 13041 return; 13042 } 13043 13044 if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_OUT) 13045 ctl_datamove_remote_write(io); 13046 else if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_IN) 13047 ctl_datamove_remote_read(io); 13048 else { 13049 io->io_hdr.port_status = 31339; 13050 ctl_send_datamove_done(io, /*have_lock*/ 0); 13051 } 13052} 13053 13054static void 13055ctl_process_done(union ctl_io *io) 13056{ 13057 struct ctl_lun *lun; 13058 struct ctl_softc *softc = control_softc; 13059 void (*fe_done)(union ctl_io *io); 13060 union ctl_ha_msg msg; 13061 uint32_t targ_port = io->io_hdr.nexus.targ_port; 13062 13063 CTL_DEBUG_PRINT(("ctl_process_done\n")); 13064 fe_done = softc->ctl_ports[targ_port]->fe_done; 13065 13066#ifdef CTL_TIME_IO 13067 if ((time_uptime - io->io_hdr.start_time) > ctl_time_io_secs) { 13068 char str[256]; 13069 char path_str[64]; 13070 struct sbuf sb; 13071 13072 ctl_scsi_path_string(io, path_str, sizeof(path_str)); 13073 sbuf_new(&sb, str, sizeof(str), SBUF_FIXEDLEN); 13074 13075 sbuf_cat(&sb, path_str); 13076 switch (io->io_hdr.io_type) { 13077 case CTL_IO_SCSI: 13078 ctl_scsi_command_string(&io->scsiio, NULL, &sb); 13079 sbuf_printf(&sb, "\n"); 13080 sbuf_cat(&sb, path_str); 13081 sbuf_printf(&sb, "Tag: 0x%04x, type %d\n", 13082 io->scsiio.tag_num, io->scsiio.tag_type); 13083 break; 13084 case CTL_IO_TASK: 13085 sbuf_printf(&sb, "Task I/O type: %d, Tag: 0x%04x, " 13086 "Tag Type: %d\n", io->taskio.task_action, 13087 io->taskio.tag_num, io->taskio.tag_type); 13088 break; 13089 default: 13090 printf("Invalid CTL I/O type %d\n", io->io_hdr.io_type); 13091 panic("Invalid CTL I/O type %d\n", io->io_hdr.io_type); 13092 break; 13093 } 13094 sbuf_cat(&sb, path_str); 13095 sbuf_printf(&sb, "ctl_process_done: %jd seconds\n", 13096 (intmax_t)time_uptime - io->io_hdr.start_time); 13097 sbuf_finish(&sb); 13098 printf("%s", sbuf_data(&sb)); 13099 } 13100#endif /* CTL_TIME_IO */ 13101 13102 switch (io->io_hdr.io_type) { 13103 case CTL_IO_SCSI: 13104 break; 13105 case CTL_IO_TASK: 13106 if (ctl_debug & CTL_DEBUG_INFO) 13107 ctl_io_error_print(io, NULL); 13108 fe_done(io); 13109 return; 13110 default: 13111 panic("ctl_process_done: invalid io type %d\n", 13112 io->io_hdr.io_type); 13113 break; /* NOTREACHED */ 13114 } 13115 13116 lun = (struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 13117 if (lun == NULL) { 13118 CTL_DEBUG_PRINT(("NULL LUN for lun %d\n", 13119 io->io_hdr.nexus.targ_mapped_lun)); 13120 goto bailout; 13121 } 13122 13123 mtx_lock(&lun->lun_lock); 13124 13125 /* 13126 * Check to see if we have any errors to inject here. We only 13127 * inject errors for commands that don't already have errors set. 13128 */ 13129 if (!STAILQ_EMPTY(&lun->error_list) && 13130 ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS) && 13131 ((io->io_hdr.flags & CTL_FLAG_STATUS_SENT) == 0)) 13132 ctl_inject_error(lun, io); 13133 13134 /* 13135 * XXX KDM how do we treat commands that aren't completed 13136 * successfully? 13137 * 13138 * XXX KDM should we also track I/O latency? 13139 */ 13140 if ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS && 13141 io->io_hdr.io_type == CTL_IO_SCSI) { 13142#ifdef CTL_TIME_IO 13143 struct bintime cur_bt; 13144#endif 13145 int type; 13146 13147 if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == 13148 CTL_FLAG_DATA_IN) 13149 type = CTL_STATS_READ; 13150 else if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == 13151 CTL_FLAG_DATA_OUT) 13152 type = CTL_STATS_WRITE; 13153 else 13154 type = CTL_STATS_NO_IO; 13155 13156 lun->stats.ports[targ_port].bytes[type] += 13157 io->scsiio.kern_total_len; 13158 lun->stats.ports[targ_port].operations[type]++; 13159#ifdef CTL_TIME_IO 13160 bintime_add(&lun->stats.ports[targ_port].dma_time[type], 13161 &io->io_hdr.dma_bt); 13162 getbinuptime(&cur_bt); 13163 bintime_sub(&cur_bt, &io->io_hdr.start_bt); 13164 bintime_add(&lun->stats.ports[targ_port].time[type], &cur_bt); 13165#endif 13166 lun->stats.ports[targ_port].num_dmas[type] += 13167 io->io_hdr.num_dmas; 13168 } 13169 13170 /* 13171 * Remove this from the OOA queue. 13172 */ 13173 TAILQ_REMOVE(&lun->ooa_queue, &io->io_hdr, ooa_links); 13174#ifdef CTL_TIME_IO 13175 if (TAILQ_EMPTY(&lun->ooa_queue)) 13176 lun->last_busy = getsbinuptime(); 13177#endif 13178 13179 /* 13180 * Run through the blocked queue on this LUN and see if anything 13181 * has become unblocked, now that this transaction is done. 13182 */ 13183 ctl_check_blocked(lun); 13184 13185 /* 13186 * If the LUN has been invalidated, free it if there is nothing 13187 * left on its OOA queue. 13188 */ 13189 if ((lun->flags & CTL_LUN_INVALID) 13190 && TAILQ_EMPTY(&lun->ooa_queue)) { 13191 mtx_unlock(&lun->lun_lock); 13192 mtx_lock(&softc->ctl_lock); 13193 ctl_free_lun(lun); 13194 mtx_unlock(&softc->ctl_lock); 13195 } else 13196 mtx_unlock(&lun->lun_lock); 13197 13198bailout: 13199 13200 /* 13201 * If this command has been aborted, make sure we set the status 13202 * properly. The FETD is responsible for freeing the I/O and doing 13203 * whatever it needs to do to clean up its state. 13204 */ 13205 if (io->io_hdr.flags & CTL_FLAG_ABORT) 13206 ctl_set_task_aborted(&io->scsiio); 13207 13208 /* 13209 * If enabled, print command error status. 13210 */ 13211 if ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_SUCCESS && 13212 (ctl_debug & CTL_DEBUG_INFO) != 0) 13213 ctl_io_error_print(io, NULL); 13214 13215 /* 13216 * Tell the FETD or the other shelf controller we're done with this 13217 * command. Note that only SCSI commands get to this point. Task 13218 * management commands are completed above. 13219 */ 13220 if ((softc->ha_mode != CTL_HA_MODE_XFER) && 13221 (io->io_hdr.flags & CTL_FLAG_SENT_2OTHER_SC)) { 13222 memset(&msg, 0, sizeof(msg)); 13223 msg.hdr.msg_type = CTL_MSG_FINISH_IO; 13224 msg.hdr.serializing_sc = io->io_hdr.serializing_sc; 13225 msg.hdr.nexus = io->io_hdr.nexus; 13226 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, 13227 sizeof(msg.scsi) - sizeof(msg.scsi.sense_data), 13228 M_WAITOK); 13229 } 13230 13231 fe_done(io); 13232} 13233 13234#ifdef CTL_WITH_CA 13235/* 13236 * Front end should call this if it doesn't do autosense. When the request 13237 * sense comes back in from the initiator, we'll dequeue this and send it. 13238 */ 13239int 13240ctl_queue_sense(union ctl_io *io) 13241{ 13242 struct ctl_lun *lun; 13243 struct ctl_port *port; 13244 struct ctl_softc *softc; 13245 uint32_t initidx, targ_lun; 13246 13247 softc = control_softc; 13248 13249 CTL_DEBUG_PRINT(("ctl_queue_sense\n")); 13250 13251 /* 13252 * LUN lookup will likely move to the ctl_work_thread() once we 13253 * have our new queueing infrastructure (that doesn't put things on 13254 * a per-LUN queue initially). That is so that we can handle 13255 * things like an INQUIRY to a LUN that we don't have enabled. We 13256 * can't deal with that right now. 13257 */ 13258 mtx_lock(&softc->ctl_lock); 13259 13260 /* 13261 * If we don't have a LUN for this, just toss the sense 13262 * information. 13263 */ 13264 port = ctl_io_port(&ctsio->io_hdr); 13265 targ_lun = ctl_lun_map_from_port(port, io->io_hdr.nexus.targ_lun); 13266 if ((targ_lun < CTL_MAX_LUNS) 13267 && (softc->ctl_luns[targ_lun] != NULL)) 13268 lun = softc->ctl_luns[targ_lun]; 13269 else 13270 goto bailout; 13271 13272 initidx = ctl_get_initindex(&io->io_hdr.nexus); 13273 13274 mtx_lock(&lun->lun_lock); 13275 /* 13276 * Already have CA set for this LUN...toss the sense information. 13277 */ 13278 if (ctl_is_set(lun->have_ca, initidx)) { 13279 mtx_unlock(&lun->lun_lock); 13280 goto bailout; 13281 } 13282 13283 memcpy(&lun->pending_sense[initidx], &io->scsiio.sense_data, 13284 MIN(sizeof(lun->pending_sense[initidx]), 13285 sizeof(io->scsiio.sense_data))); 13286 ctl_set_mask(lun->have_ca, initidx); 13287 mtx_unlock(&lun->lun_lock); 13288 13289bailout: 13290 mtx_unlock(&softc->ctl_lock); 13291 13292 ctl_free_io(io); 13293 13294 return (CTL_RETVAL_COMPLETE); 13295} 13296#endif 13297 13298/* 13299 * Primary command inlet from frontend ports. All SCSI and task I/O 13300 * requests must go through this function. 13301 */ 13302int 13303ctl_queue(union ctl_io *io) 13304{ 13305 struct ctl_port *port; 13306 13307 CTL_DEBUG_PRINT(("ctl_queue cdb[0]=%02X\n", io->scsiio.cdb[0])); 13308 13309#ifdef CTL_TIME_IO 13310 io->io_hdr.start_time = time_uptime; 13311 getbinuptime(&io->io_hdr.start_bt); 13312#endif /* CTL_TIME_IO */ 13313 13314 /* Map FE-specific LUN ID into global one. */ 13315 port = ctl_io_port(&io->io_hdr); 13316 io->io_hdr.nexus.targ_mapped_lun = 13317 ctl_lun_map_from_port(port, io->io_hdr.nexus.targ_lun); 13318 13319 switch (io->io_hdr.io_type) { 13320 case CTL_IO_SCSI: 13321 case CTL_IO_TASK: 13322 if (ctl_debug & CTL_DEBUG_CDB) 13323 ctl_io_print(io); 13324 ctl_enqueue_incoming(io); 13325 break; 13326 default: 13327 printf("ctl_queue: unknown I/O type %d\n", io->io_hdr.io_type); 13328 return (EINVAL); 13329 } 13330 13331 return (CTL_RETVAL_COMPLETE); 13332} 13333 13334#ifdef CTL_IO_DELAY 13335static void 13336ctl_done_timer_wakeup(void *arg) 13337{ 13338 union ctl_io *io; 13339 13340 io = (union ctl_io *)arg; 13341 ctl_done(io); 13342} 13343#endif /* CTL_IO_DELAY */ 13344 13345void 13346ctl_serseq_done(union ctl_io *io) 13347{ 13348 struct ctl_lun *lun; 13349 13350 lun = (struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 13351 if (lun->be_lun == NULL || 13352 lun->be_lun->serseq == CTL_LUN_SERSEQ_OFF) 13353 return; 13354 mtx_lock(&lun->lun_lock); 13355 io->io_hdr.flags |= CTL_FLAG_SERSEQ_DONE; 13356 ctl_check_blocked(lun); 13357 mtx_unlock(&lun->lun_lock); 13358} 13359 13360void 13361ctl_done(union ctl_io *io) 13362{ 13363 13364 /* 13365 * Enable this to catch duplicate completion issues. 13366 */ 13367#if 0 13368 if (io->io_hdr.flags & CTL_FLAG_ALREADY_DONE) { 13369 printf("%s: type %d msg %d cdb %x iptl: " 13370 "%u:%u:%u tag 0x%04x " 13371 "flag %#x status %x\n", 13372 __func__, 13373 io->io_hdr.io_type, 13374 io->io_hdr.msg_type, 13375 io->scsiio.cdb[0], 13376 io->io_hdr.nexus.initid, 13377 io->io_hdr.nexus.targ_port, 13378 io->io_hdr.nexus.targ_lun, 13379 (io->io_hdr.io_type == 13380 CTL_IO_TASK) ? 13381 io->taskio.tag_num : 13382 io->scsiio.tag_num, 13383 io->io_hdr.flags, 13384 io->io_hdr.status); 13385 } else 13386 io->io_hdr.flags |= CTL_FLAG_ALREADY_DONE; 13387#endif 13388 13389 /* 13390 * This is an internal copy of an I/O, and should not go through 13391 * the normal done processing logic. 13392 */ 13393 if (io->io_hdr.flags & CTL_FLAG_INT_COPY) 13394 return; 13395 13396#ifdef CTL_IO_DELAY 13397 if (io->io_hdr.flags & CTL_FLAG_DELAY_DONE) { 13398 struct ctl_lun *lun; 13399 13400 lun =(struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 13401 13402 io->io_hdr.flags &= ~CTL_FLAG_DELAY_DONE; 13403 } else { 13404 struct ctl_lun *lun; 13405 13406 lun =(struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 13407 13408 if ((lun != NULL) 13409 && (lun->delay_info.done_delay > 0)) { 13410 13411 callout_init(&io->io_hdr.delay_callout, /*mpsafe*/ 1); 13412 io->io_hdr.flags |= CTL_FLAG_DELAY_DONE; 13413 callout_reset(&io->io_hdr.delay_callout, 13414 lun->delay_info.done_delay * hz, 13415 ctl_done_timer_wakeup, io); 13416 if (lun->delay_info.done_type == CTL_DELAY_TYPE_ONESHOT) 13417 lun->delay_info.done_delay = 0; 13418 return; 13419 } 13420 } 13421#endif /* CTL_IO_DELAY */ 13422 13423 ctl_enqueue_done(io); 13424} 13425 13426static void 13427ctl_work_thread(void *arg) 13428{ 13429 struct ctl_thread *thr = (struct ctl_thread *)arg; 13430 struct ctl_softc *softc = thr->ctl_softc; 13431 union ctl_io *io; 13432 int retval; 13433 13434 CTL_DEBUG_PRINT(("ctl_work_thread starting\n")); 13435 13436 for (;;) { 13437 /* 13438 * We handle the queues in this order: 13439 * - ISC 13440 * - done queue (to free up resources, unblock other commands) 13441 * - RtR queue 13442 * - incoming queue 13443 * 13444 * If those queues are empty, we break out of the loop and 13445 * go to sleep. 13446 */ 13447 mtx_lock(&thr->queue_lock); 13448 io = (union ctl_io *)STAILQ_FIRST(&thr->isc_queue); 13449 if (io != NULL) { 13450 STAILQ_REMOVE_HEAD(&thr->isc_queue, links); 13451 mtx_unlock(&thr->queue_lock); 13452 ctl_handle_isc(io); 13453 continue; 13454 } 13455 io = (union ctl_io *)STAILQ_FIRST(&thr->done_queue); 13456 if (io != NULL) { 13457 STAILQ_REMOVE_HEAD(&thr->done_queue, links); 13458 /* clear any blocked commands, call fe_done */ 13459 mtx_unlock(&thr->queue_lock); 13460 ctl_process_done(io); 13461 continue; 13462 } 13463 io = (union ctl_io *)STAILQ_FIRST(&thr->incoming_queue); 13464 if (io != NULL) { 13465 STAILQ_REMOVE_HEAD(&thr->incoming_queue, links); 13466 mtx_unlock(&thr->queue_lock); 13467 if (io->io_hdr.io_type == CTL_IO_TASK) 13468 ctl_run_task(io); 13469 else 13470 ctl_scsiio_precheck(softc, &io->scsiio); 13471 continue; 13472 } 13473 io = (union ctl_io *)STAILQ_FIRST(&thr->rtr_queue); 13474 if (io != NULL) { 13475 STAILQ_REMOVE_HEAD(&thr->rtr_queue, links); 13476 mtx_unlock(&thr->queue_lock); 13477 retval = ctl_scsiio(&io->scsiio); 13478 if (retval != CTL_RETVAL_COMPLETE) 13479 CTL_DEBUG_PRINT(("ctl_scsiio failed\n")); 13480 continue; 13481 } 13482 13483 /* Sleep until we have something to do. */ 13484 mtx_sleep(thr, &thr->queue_lock, PDROP | PRIBIO, "-", 0); 13485 } 13486} 13487 13488static void 13489ctl_lun_thread(void *arg) 13490{ 13491 struct ctl_softc *softc = (struct ctl_softc *)arg; 13492 struct ctl_be_lun *be_lun; 13493 13494 CTL_DEBUG_PRINT(("ctl_lun_thread starting\n")); 13495 13496 for (;;) { 13497 mtx_lock(&softc->ctl_lock); 13498 be_lun = STAILQ_FIRST(&softc->pending_lun_queue); 13499 if (be_lun != NULL) { 13500 STAILQ_REMOVE_HEAD(&softc->pending_lun_queue, links); 13501 mtx_unlock(&softc->ctl_lock); 13502 ctl_create_lun(be_lun); 13503 continue; 13504 } 13505 13506 /* Sleep until we have something to do. */ 13507 mtx_sleep(&softc->pending_lun_queue, &softc->ctl_lock, 13508 PDROP | PRIBIO, "-", 0); 13509 } 13510} 13511 13512static void 13513ctl_thresh_thread(void *arg) 13514{ 13515 struct ctl_softc *softc = (struct ctl_softc *)arg; 13516 struct ctl_lun *lun; 13517 struct scsi_da_rw_recovery_page *rwpage; 13518 struct ctl_logical_block_provisioning_page *page; 13519 const char *attr; 13520 union ctl_ha_msg msg; 13521 uint64_t thres, val; 13522 int i, e, set; 13523 13524 CTL_DEBUG_PRINT(("ctl_thresh_thread starting\n")); 13525 13526 for (;;) { 13527 mtx_lock(&softc->ctl_lock); 13528 STAILQ_FOREACH(lun, &softc->lun_list, links) { 13529 if ((lun->flags & CTL_LUN_DISABLED) || 13530 (lun->flags & CTL_LUN_NO_MEDIA) || 13531 lun->backend->lun_attr == NULL) 13532 continue; 13533 if ((lun->flags & CTL_LUN_PRIMARY_SC) == 0 && 13534 softc->ha_mode == CTL_HA_MODE_XFER) 13535 continue; 13536 rwpage = &lun->mode_pages.rw_er_page[CTL_PAGE_CURRENT]; 13537 if ((rwpage->byte8 & SMS_RWER_LBPERE) == 0) 13538 continue; 13539 e = 0; 13540 page = &lun->mode_pages.lbp_page[CTL_PAGE_CURRENT]; 13541 for (i = 0; i < CTL_NUM_LBP_THRESH; i++) { 13542 if ((page->descr[i].flags & SLBPPD_ENABLED) == 0) 13543 continue; 13544 thres = scsi_4btoul(page->descr[i].count); 13545 thres <<= CTL_LBP_EXPONENT; 13546 switch (page->descr[i].resource) { 13547 case 0x01: 13548 attr = "blocksavail"; 13549 break; 13550 case 0x02: 13551 attr = "blocksused"; 13552 break; 13553 case 0xf1: 13554 attr = "poolblocksavail"; 13555 break; 13556 case 0xf2: 13557 attr = "poolblocksused"; 13558 break; 13559 default: 13560 continue; 13561 } 13562 mtx_unlock(&softc->ctl_lock); // XXX 13563 val = lun->backend->lun_attr( 13564 lun->be_lun->be_lun, attr); 13565 mtx_lock(&softc->ctl_lock); 13566 if (val == UINT64_MAX) 13567 continue; 13568 if ((page->descr[i].flags & SLBPPD_ARMING_MASK) 13569 == SLBPPD_ARMING_INC) 13570 e = (val >= thres); 13571 else 13572 e = (val <= thres); 13573 if (e) 13574 break; 13575 } 13576 mtx_lock(&lun->lun_lock); 13577 if (e) { 13578 scsi_u64to8b((uint8_t *)&page->descr[i] - 13579 (uint8_t *)page, lun->ua_tpt_info); 13580 if (lun->lasttpt == 0 || 13581 time_uptime - lun->lasttpt >= CTL_LBP_UA_PERIOD) { 13582 lun->lasttpt = time_uptime; 13583 ctl_est_ua_all(lun, -1, CTL_UA_THIN_PROV_THRES); 13584 set = 1; 13585 } else 13586 set = 0; 13587 } else { 13588 lun->lasttpt = 0; 13589 ctl_clr_ua_all(lun, -1, CTL_UA_THIN_PROV_THRES); 13590 set = -1; 13591 } 13592 mtx_unlock(&lun->lun_lock); 13593 if (set != 0 && 13594 lun->ctl_softc->ha_mode == CTL_HA_MODE_XFER) { 13595 /* Send msg to other side. */ 13596 bzero(&msg.ua, sizeof(msg.ua)); 13597 msg.hdr.msg_type = CTL_MSG_UA; 13598 msg.hdr.nexus.initid = -1; 13599 msg.hdr.nexus.targ_port = -1; 13600 msg.hdr.nexus.targ_lun = lun->lun; 13601 msg.hdr.nexus.targ_mapped_lun = lun->lun; 13602 msg.ua.ua_all = 1; 13603 msg.ua.ua_set = (set > 0); 13604 msg.ua.ua_type = CTL_UA_THIN_PROV_THRES; 13605 memcpy(msg.ua.ua_info, lun->ua_tpt_info, 8); 13606 mtx_unlock(&softc->ctl_lock); // XXX 13607 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, 13608 sizeof(msg.ua), M_WAITOK); 13609 mtx_lock(&softc->ctl_lock); 13610 } 13611 } 13612 mtx_unlock(&softc->ctl_lock); 13613 pause("-", CTL_LBP_PERIOD * hz); 13614 } 13615} 13616 13617static void 13618ctl_enqueue_incoming(union ctl_io *io) 13619{ 13620 struct ctl_softc *softc = control_softc; 13621 struct ctl_thread *thr; 13622 u_int idx; 13623 13624 idx = (io->io_hdr.nexus.targ_port * 127 + 13625 io->io_hdr.nexus.initid) % worker_threads; 13626 thr = &softc->threads[idx]; 13627 mtx_lock(&thr->queue_lock); 13628 STAILQ_INSERT_TAIL(&thr->incoming_queue, &io->io_hdr, links); 13629 mtx_unlock(&thr->queue_lock); 13630 wakeup(thr); 13631} 13632 13633static void 13634ctl_enqueue_rtr(union ctl_io *io) 13635{ 13636 struct ctl_softc *softc = control_softc; 13637 struct ctl_thread *thr; 13638 13639 thr = &softc->threads[io->io_hdr.nexus.targ_mapped_lun % worker_threads]; 13640 mtx_lock(&thr->queue_lock); 13641 STAILQ_INSERT_TAIL(&thr->rtr_queue, &io->io_hdr, links); 13642 mtx_unlock(&thr->queue_lock); 13643 wakeup(thr); 13644} 13645 13646static void 13647ctl_enqueue_done(union ctl_io *io) 13648{ 13649 struct ctl_softc *softc = control_softc; 13650 struct ctl_thread *thr; 13651 13652 thr = &softc->threads[io->io_hdr.nexus.targ_mapped_lun % worker_threads]; 13653 mtx_lock(&thr->queue_lock); 13654 STAILQ_INSERT_TAIL(&thr->done_queue, &io->io_hdr, links); 13655 mtx_unlock(&thr->queue_lock); 13656 wakeup(thr); 13657} 13658 13659static void 13660ctl_enqueue_isc(union ctl_io *io) 13661{ 13662 struct ctl_softc *softc = control_softc; 13663 struct ctl_thread *thr; 13664 13665 thr = &softc->threads[io->io_hdr.nexus.targ_mapped_lun % worker_threads]; 13666 mtx_lock(&thr->queue_lock); 13667 STAILQ_INSERT_TAIL(&thr->isc_queue, &io->io_hdr, links); 13668 mtx_unlock(&thr->queue_lock); 13669 wakeup(thr); 13670} 13671 13672/* 13673 * vim: ts=8 13674 */ 13675