ctl.c revision 290778
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 290778 2015-11-13 19:27:38Z mav $"); 47 48#include <sys/param.h> 49#include <sys/systm.h> 50#include <sys/ctype.h> 51#include <sys/kernel.h> 52#include <sys/types.h> 53#include <sys/kthread.h> 54#include <sys/bio.h> 55#include <sys/fcntl.h> 56#include <sys/lock.h> 57#include <sys/module.h> 58#include <sys/mutex.h> 59#include <sys/condvar.h> 60#include <sys/malloc.h> 61#include <sys/conf.h> 62#include <sys/ioccom.h> 63#include <sys/queue.h> 64#include <sys/sbuf.h> 65#include <sys/smp.h> 66#include <sys/endian.h> 67#include <sys/sysctl.h> 68#include <vm/uma.h> 69 70#include <cam/cam.h> 71#include <cam/scsi/scsi_all.h> 72#include <cam/scsi/scsi_cd.h> 73#include <cam/scsi/scsi_da.h> 74#include <cam/ctl/ctl_io.h> 75#include <cam/ctl/ctl.h> 76#include <cam/ctl/ctl_frontend.h> 77#include <cam/ctl/ctl_util.h> 78#include <cam/ctl/ctl_backend.h> 79#include <cam/ctl/ctl_ioctl.h> 80#include <cam/ctl/ctl_ha.h> 81#include <cam/ctl/ctl_private.h> 82#include <cam/ctl/ctl_debug.h> 83#include <cam/ctl/ctl_scsi_all.h> 84#include <cam/ctl/ctl_error.h> 85 86struct ctl_softc *control_softc = NULL; 87 88/* 89 * Template mode pages. 90 */ 91 92/* 93 * Note that these are default values only. The actual values will be 94 * filled in when the user does a mode sense. 95 */ 96const static struct copan_debugconf_subpage debugconf_page_default = { 97 DBGCNF_PAGE_CODE | SMPH_SPF, /* page_code */ 98 DBGCNF_SUBPAGE_CODE, /* subpage */ 99 {(sizeof(struct copan_debugconf_subpage) - 4) >> 8, 100 (sizeof(struct copan_debugconf_subpage) - 4) >> 0}, /* page_length */ 101 DBGCNF_VERSION, /* page_version */ 102 {CTL_TIME_IO_DEFAULT_SECS>>8, 103 CTL_TIME_IO_DEFAULT_SECS>>0}, /* ctl_time_io_secs */ 104}; 105 106const static struct copan_debugconf_subpage debugconf_page_changeable = { 107 DBGCNF_PAGE_CODE | SMPH_SPF, /* page_code */ 108 DBGCNF_SUBPAGE_CODE, /* subpage */ 109 {(sizeof(struct copan_debugconf_subpage) - 4) >> 8, 110 (sizeof(struct copan_debugconf_subpage) - 4) >> 0}, /* page_length */ 111 0, /* page_version */ 112 {0xff,0xff}, /* ctl_time_io_secs */ 113}; 114 115const static struct scsi_da_rw_recovery_page rw_er_page_default = { 116 /*page_code*/SMS_RW_ERROR_RECOVERY_PAGE, 117 /*page_length*/sizeof(struct scsi_da_rw_recovery_page) - 2, 118 /*byte3*/SMS_RWER_AWRE|SMS_RWER_ARRE, 119 /*read_retry_count*/0, 120 /*correction_span*/0, 121 /*head_offset_count*/0, 122 /*data_strobe_offset_cnt*/0, 123 /*byte8*/SMS_RWER_LBPERE, 124 /*write_retry_count*/0, 125 /*reserved2*/0, 126 /*recovery_time_limit*/{0, 0}, 127}; 128 129const static struct scsi_da_rw_recovery_page rw_er_page_changeable = { 130 /*page_code*/SMS_RW_ERROR_RECOVERY_PAGE, 131 /*page_length*/sizeof(struct scsi_da_rw_recovery_page) - 2, 132 /*byte3*/0, 133 /*read_retry_count*/0, 134 /*correction_span*/0, 135 /*head_offset_count*/0, 136 /*data_strobe_offset_cnt*/0, 137 /*byte8*/0, 138 /*write_retry_count*/0, 139 /*reserved2*/0, 140 /*recovery_time_limit*/{0, 0}, 141}; 142 143const static struct scsi_format_page format_page_default = { 144 /*page_code*/SMS_FORMAT_DEVICE_PAGE, 145 /*page_length*/sizeof(struct scsi_format_page) - 2, 146 /*tracks_per_zone*/ {0, 0}, 147 /*alt_sectors_per_zone*/ {0, 0}, 148 /*alt_tracks_per_zone*/ {0, 0}, 149 /*alt_tracks_per_lun*/ {0, 0}, 150 /*sectors_per_track*/ {(CTL_DEFAULT_SECTORS_PER_TRACK >> 8) & 0xff, 151 CTL_DEFAULT_SECTORS_PER_TRACK & 0xff}, 152 /*bytes_per_sector*/ {0, 0}, 153 /*interleave*/ {0, 0}, 154 /*track_skew*/ {0, 0}, 155 /*cylinder_skew*/ {0, 0}, 156 /*flags*/ SFP_HSEC, 157 /*reserved*/ {0, 0, 0} 158}; 159 160const static struct scsi_format_page format_page_changeable = { 161 /*page_code*/SMS_FORMAT_DEVICE_PAGE, 162 /*page_length*/sizeof(struct scsi_format_page) - 2, 163 /*tracks_per_zone*/ {0, 0}, 164 /*alt_sectors_per_zone*/ {0, 0}, 165 /*alt_tracks_per_zone*/ {0, 0}, 166 /*alt_tracks_per_lun*/ {0, 0}, 167 /*sectors_per_track*/ {0, 0}, 168 /*bytes_per_sector*/ {0, 0}, 169 /*interleave*/ {0, 0}, 170 /*track_skew*/ {0, 0}, 171 /*cylinder_skew*/ {0, 0}, 172 /*flags*/ 0, 173 /*reserved*/ {0, 0, 0} 174}; 175 176const static struct scsi_rigid_disk_page rigid_disk_page_default = { 177 /*page_code*/SMS_RIGID_DISK_PAGE, 178 /*page_length*/sizeof(struct scsi_rigid_disk_page) - 2, 179 /*cylinders*/ {0, 0, 0}, 180 /*heads*/ CTL_DEFAULT_HEADS, 181 /*start_write_precomp*/ {0, 0, 0}, 182 /*start_reduced_current*/ {0, 0, 0}, 183 /*step_rate*/ {0, 0}, 184 /*landing_zone_cylinder*/ {0, 0, 0}, 185 /*rpl*/ SRDP_RPL_DISABLED, 186 /*rotational_offset*/ 0, 187 /*reserved1*/ 0, 188 /*rotation_rate*/ {(CTL_DEFAULT_ROTATION_RATE >> 8) & 0xff, 189 CTL_DEFAULT_ROTATION_RATE & 0xff}, 190 /*reserved2*/ {0, 0} 191}; 192 193const static struct scsi_rigid_disk_page rigid_disk_page_changeable = { 194 /*page_code*/SMS_RIGID_DISK_PAGE, 195 /*page_length*/sizeof(struct scsi_rigid_disk_page) - 2, 196 /*cylinders*/ {0, 0, 0}, 197 /*heads*/ 0, 198 /*start_write_precomp*/ {0, 0, 0}, 199 /*start_reduced_current*/ {0, 0, 0}, 200 /*step_rate*/ {0, 0}, 201 /*landing_zone_cylinder*/ {0, 0, 0}, 202 /*rpl*/ 0, 203 /*rotational_offset*/ 0, 204 /*reserved1*/ 0, 205 /*rotation_rate*/ {0, 0}, 206 /*reserved2*/ {0, 0} 207}; 208 209const static struct scsi_caching_page caching_page_default = { 210 /*page_code*/SMS_CACHING_PAGE, 211 /*page_length*/sizeof(struct scsi_caching_page) - 2, 212 /*flags1*/ SCP_DISC | SCP_WCE, 213 /*ret_priority*/ 0, 214 /*disable_pf_transfer_len*/ {0xff, 0xff}, 215 /*min_prefetch*/ {0, 0}, 216 /*max_prefetch*/ {0xff, 0xff}, 217 /*max_pf_ceiling*/ {0xff, 0xff}, 218 /*flags2*/ 0, 219 /*cache_segments*/ 0, 220 /*cache_seg_size*/ {0, 0}, 221 /*reserved*/ 0, 222 /*non_cache_seg_size*/ {0, 0, 0} 223}; 224 225const static struct scsi_caching_page caching_page_changeable = { 226 /*page_code*/SMS_CACHING_PAGE, 227 /*page_length*/sizeof(struct scsi_caching_page) - 2, 228 /*flags1*/ SCP_WCE | SCP_RCD, 229 /*ret_priority*/ 0, 230 /*disable_pf_transfer_len*/ {0, 0}, 231 /*min_prefetch*/ {0, 0}, 232 /*max_prefetch*/ {0, 0}, 233 /*max_pf_ceiling*/ {0, 0}, 234 /*flags2*/ 0, 235 /*cache_segments*/ 0, 236 /*cache_seg_size*/ {0, 0}, 237 /*reserved*/ 0, 238 /*non_cache_seg_size*/ {0, 0, 0} 239}; 240 241const static struct scsi_control_page control_page_default = { 242 /*page_code*/SMS_CONTROL_MODE_PAGE, 243 /*page_length*/sizeof(struct scsi_control_page) - 2, 244 /*rlec*/0, 245 /*queue_flags*/SCP_QUEUE_ALG_RESTRICTED, 246 /*eca_and_aen*/0, 247 /*flags4*/SCP_TAS, 248 /*aen_holdoff_period*/{0, 0}, 249 /*busy_timeout_period*/{0, 0}, 250 /*extended_selftest_completion_time*/{0, 0} 251}; 252 253const static struct scsi_control_page control_page_changeable = { 254 /*page_code*/SMS_CONTROL_MODE_PAGE, 255 /*page_length*/sizeof(struct scsi_control_page) - 2, 256 /*rlec*/SCP_DSENSE, 257 /*queue_flags*/SCP_QUEUE_ALG_MASK, 258 /*eca_and_aen*/SCP_SWP, 259 /*flags4*/0, 260 /*aen_holdoff_period*/{0, 0}, 261 /*busy_timeout_period*/{0, 0}, 262 /*extended_selftest_completion_time*/{0, 0} 263}; 264 265#define CTL_CEM_LEN (sizeof(struct scsi_control_ext_page) - 4) 266 267const static struct scsi_control_ext_page control_ext_page_default = { 268 /*page_code*/SMS_CONTROL_MODE_PAGE | SMPH_SPF, 269 /*subpage_code*/0x01, 270 /*page_length*/{CTL_CEM_LEN >> 8, CTL_CEM_LEN}, 271 /*flags*/0, 272 /*prio*/0, 273 /*max_sense*/0 274}; 275 276const static struct scsi_control_ext_page control_ext_page_changeable = { 277 /*page_code*/SMS_CONTROL_MODE_PAGE | SMPH_SPF, 278 /*subpage_code*/0x01, 279 /*page_length*/{CTL_CEM_LEN >> 8, CTL_CEM_LEN}, 280 /*flags*/0, 281 /*prio*/0, 282 /*max_sense*/0 283}; 284 285const static struct scsi_info_exceptions_page ie_page_default = { 286 /*page_code*/SMS_INFO_EXCEPTIONS_PAGE, 287 /*page_length*/sizeof(struct scsi_info_exceptions_page) - 2, 288 /*info_flags*/SIEP_FLAGS_DEXCPT, 289 /*mrie*/0, 290 /*interval_timer*/{0, 0, 0, 0}, 291 /*report_count*/{0, 0, 0, 0} 292}; 293 294const static struct scsi_info_exceptions_page ie_page_changeable = { 295 /*page_code*/SMS_INFO_EXCEPTIONS_PAGE, 296 /*page_length*/sizeof(struct scsi_info_exceptions_page) - 2, 297 /*info_flags*/0, 298 /*mrie*/0, 299 /*interval_timer*/{0, 0, 0, 0}, 300 /*report_count*/{0, 0, 0, 0} 301}; 302 303#define CTL_LBPM_LEN (sizeof(struct ctl_logical_block_provisioning_page) - 4) 304 305const static struct ctl_logical_block_provisioning_page lbp_page_default = {{ 306 /*page_code*/SMS_INFO_EXCEPTIONS_PAGE | SMPH_SPF, 307 /*subpage_code*/0x02, 308 /*page_length*/{CTL_LBPM_LEN >> 8, CTL_LBPM_LEN}, 309 /*flags*/0, 310 /*reserved*/{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}, 311 /*descr*/{}}, 312 {{/*flags*/0, 313 /*resource*/0x01, 314 /*reserved*/{0, 0}, 315 /*count*/{0, 0, 0, 0}}, 316 {/*flags*/0, 317 /*resource*/0x02, 318 /*reserved*/{0, 0}, 319 /*count*/{0, 0, 0, 0}}, 320 {/*flags*/0, 321 /*resource*/0xf1, 322 /*reserved*/{0, 0}, 323 /*count*/{0, 0, 0, 0}}, 324 {/*flags*/0, 325 /*resource*/0xf2, 326 /*reserved*/{0, 0}, 327 /*count*/{0, 0, 0, 0}} 328 } 329}; 330 331const static struct ctl_logical_block_provisioning_page lbp_page_changeable = {{ 332 /*page_code*/SMS_INFO_EXCEPTIONS_PAGE | SMPH_SPF, 333 /*subpage_code*/0x02, 334 /*page_length*/{CTL_LBPM_LEN >> 8, CTL_LBPM_LEN}, 335 /*flags*/0, 336 /*reserved*/{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}, 337 /*descr*/{}}, 338 {{/*flags*/0, 339 /*resource*/0, 340 /*reserved*/{0, 0}, 341 /*count*/{0, 0, 0, 0}}, 342 {/*flags*/0, 343 /*resource*/0, 344 /*reserved*/{0, 0}, 345 /*count*/{0, 0, 0, 0}}, 346 {/*flags*/0, 347 /*resource*/0, 348 /*reserved*/{0, 0}, 349 /*count*/{0, 0, 0, 0}}, 350 {/*flags*/0, 351 /*resource*/0, 352 /*reserved*/{0, 0}, 353 /*count*/{0, 0, 0, 0}} 354 } 355}; 356 357const static struct scsi_cddvd_capabilities_page cddvd_page_default = { 358 /*page_code*/SMS_CDDVD_CAPS_PAGE, 359 /*page_length*/sizeof(struct scsi_cddvd_capabilities_page) - 2, 360 /*caps1*/0x3f, 361 /*caps2*/0x00, 362 /*caps3*/0xf0, 363 /*caps4*/0x00, 364 /*caps5*/0x29, 365 /*caps6*/0x00, 366 /*obsolete*/{0, 0}, 367 /*nvol_levels*/{0, 0}, 368 /*buffer_size*/{8, 0}, 369 /*obsolete2*/{0, 0}, 370 /*reserved*/0, 371 /*digital*/0, 372 /*obsolete3*/0, 373 /*copy_management*/0, 374 /*reserved2*/0, 375 /*rotation_control*/0, 376 /*cur_write_speed*/0, 377 /*num_speed_descr*/0, 378}; 379 380const static struct scsi_cddvd_capabilities_page cddvd_page_changeable = { 381 /*page_code*/SMS_CDDVD_CAPS_PAGE, 382 /*page_length*/sizeof(struct scsi_cddvd_capabilities_page) - 2, 383 /*caps1*/0, 384 /*caps2*/0, 385 /*caps3*/0, 386 /*caps4*/0, 387 /*caps5*/0, 388 /*caps6*/0, 389 /*obsolete*/{0, 0}, 390 /*nvol_levels*/{0, 0}, 391 /*buffer_size*/{0, 0}, 392 /*obsolete2*/{0, 0}, 393 /*reserved*/0, 394 /*digital*/0, 395 /*obsolete3*/0, 396 /*copy_management*/0, 397 /*reserved2*/0, 398 /*rotation_control*/0, 399 /*cur_write_speed*/0, 400 /*num_speed_descr*/0, 401}; 402 403SYSCTL_NODE(_kern_cam, OID_AUTO, ctl, CTLFLAG_RD, 0, "CAM Target Layer"); 404static int worker_threads = -1; 405TUNABLE_INT("kern.cam.ctl.worker_threads", &worker_threads); 406SYSCTL_INT(_kern_cam_ctl, OID_AUTO, worker_threads, CTLFLAG_RDTUN, 407 &worker_threads, 1, "Number of worker threads"); 408static int ctl_debug = CTL_DEBUG_NONE; 409TUNABLE_INT("kern.cam.ctl.debug", &ctl_debug); 410SYSCTL_INT(_kern_cam_ctl, OID_AUTO, debug, CTLFLAG_RWTUN, 411 &ctl_debug, 0, "Enabled debug flags"); 412 413/* 414 * Supported pages (0x00), Serial number (0x80), Device ID (0x83), 415 * Extended INQUIRY Data (0x86), Mode Page Policy (0x87), 416 * SCSI Ports (0x88), Third-party Copy (0x8F), Block limits (0xB0), 417 * Block Device Characteristics (0xB1) and Logical Block Provisioning (0xB2) 418 */ 419#define SCSI_EVPD_NUM_SUPPORTED_PAGES 10 420 421static void ctl_isc_event_handler(ctl_ha_channel chanel, ctl_ha_event event, 422 int param); 423static void ctl_copy_sense_data(union ctl_ha_msg *src, union ctl_io *dest); 424static void ctl_copy_sense_data_back(union ctl_io *src, union ctl_ha_msg *dest); 425static int ctl_init(void); 426void ctl_shutdown(void); 427static int ctl_open(struct cdev *dev, int flags, int fmt, struct thread *td); 428static int ctl_close(struct cdev *dev, int flags, int fmt, struct thread *td); 429static int ctl_serialize_other_sc_cmd(struct ctl_scsiio *ctsio); 430static void ctl_ioctl_fill_ooa(struct ctl_lun *lun, uint32_t *cur_fill_num, 431 struct ctl_ooa *ooa_hdr, 432 struct ctl_ooa_entry *kern_entries); 433static int ctl_ioctl(struct cdev *dev, u_long cmd, caddr_t addr, int flag, 434 struct thread *td); 435static int ctl_alloc_lun(struct ctl_softc *ctl_softc, struct ctl_lun *lun, 436 struct ctl_be_lun *be_lun); 437static int ctl_free_lun(struct ctl_lun *lun); 438static void ctl_create_lun(struct ctl_be_lun *be_lun); 439static struct ctl_port * ctl_io_port(struct ctl_io_hdr *io_hdr); 440 441static int ctl_do_mode_select(union ctl_io *io); 442static int ctl_pro_preempt(struct ctl_softc *softc, struct ctl_lun *lun, 443 uint64_t res_key, uint64_t sa_res_key, 444 uint8_t type, uint32_t residx, 445 struct ctl_scsiio *ctsio, 446 struct scsi_per_res_out *cdb, 447 struct scsi_per_res_out_parms* param); 448static void ctl_pro_preempt_other(struct ctl_lun *lun, 449 union ctl_ha_msg *msg); 450static void ctl_hndl_per_res_out_on_other_sc(union ctl_ha_msg *msg); 451static int ctl_inquiry_evpd_supported(struct ctl_scsiio *ctsio, int alloc_len); 452static int ctl_inquiry_evpd_serial(struct ctl_scsiio *ctsio, int alloc_len); 453static int ctl_inquiry_evpd_devid(struct ctl_scsiio *ctsio, int alloc_len); 454static int ctl_inquiry_evpd_eid(struct ctl_scsiio *ctsio, int alloc_len); 455static int ctl_inquiry_evpd_mpp(struct ctl_scsiio *ctsio, int alloc_len); 456static int ctl_inquiry_evpd_scsi_ports(struct ctl_scsiio *ctsio, 457 int alloc_len); 458static int ctl_inquiry_evpd_block_limits(struct ctl_scsiio *ctsio, 459 int alloc_len); 460static int ctl_inquiry_evpd_bdc(struct ctl_scsiio *ctsio, int alloc_len); 461static int ctl_inquiry_evpd_lbp(struct ctl_scsiio *ctsio, int alloc_len); 462static int ctl_inquiry_evpd(struct ctl_scsiio *ctsio); 463static int ctl_inquiry_std(struct ctl_scsiio *ctsio); 464static int ctl_get_lba_len(union ctl_io *io, uint64_t *lba, uint64_t *len); 465static ctl_action ctl_extent_check(union ctl_io *io1, union ctl_io *io2, 466 bool seq); 467static ctl_action ctl_extent_check_seq(union ctl_io *io1, union ctl_io *io2); 468static ctl_action ctl_check_for_blockage(struct ctl_lun *lun, 469 union ctl_io *pending_io, union ctl_io *ooa_io); 470static ctl_action ctl_check_ooa(struct ctl_lun *lun, union ctl_io *pending_io, 471 union ctl_io *starting_io); 472static int ctl_check_blocked(struct ctl_lun *lun); 473static int ctl_scsiio_lun_check(struct ctl_lun *lun, 474 const struct ctl_cmd_entry *entry, 475 struct ctl_scsiio *ctsio); 476static void ctl_failover_lun(union ctl_io *io); 477static int ctl_scsiio_precheck(struct ctl_softc *ctl_softc, 478 struct ctl_scsiio *ctsio); 479static int ctl_scsiio(struct ctl_scsiio *ctsio); 480 481static int ctl_bus_reset(struct ctl_softc *ctl_softc, union ctl_io *io); 482static int ctl_target_reset(struct ctl_softc *ctl_softc, union ctl_io *io, 483 ctl_ua_type ua_type); 484static int ctl_do_lun_reset(struct ctl_lun *lun, union ctl_io *io, 485 ctl_ua_type ua_type); 486static int ctl_lun_reset(struct ctl_softc *ctl_softc, union ctl_io *io); 487static int ctl_abort_task(union ctl_io *io); 488static int ctl_abort_task_set(union ctl_io *io); 489static int ctl_query_task(union ctl_io *io, int task_set); 490static int ctl_i_t_nexus_reset(union ctl_io *io); 491static int ctl_query_async_event(union ctl_io *io); 492static void ctl_run_task(union ctl_io *io); 493#ifdef CTL_IO_DELAY 494static void ctl_datamove_timer_wakeup(void *arg); 495static void ctl_done_timer_wakeup(void *arg); 496#endif /* CTL_IO_DELAY */ 497 498static void ctl_send_datamove_done(union ctl_io *io, int have_lock); 499static void ctl_datamove_remote_write_cb(struct ctl_ha_dt_req *rq); 500static int ctl_datamove_remote_dm_write_cb(union ctl_io *io); 501static void ctl_datamove_remote_write(union ctl_io *io); 502static int ctl_datamove_remote_dm_read_cb(union ctl_io *io); 503static void ctl_datamove_remote_read_cb(struct ctl_ha_dt_req *rq); 504static int ctl_datamove_remote_sgl_setup(union ctl_io *io); 505static int ctl_datamove_remote_xfer(union ctl_io *io, unsigned command, 506 ctl_ha_dt_cb callback); 507static void ctl_datamove_remote_read(union ctl_io *io); 508static void ctl_datamove_remote(union ctl_io *io); 509static void ctl_process_done(union ctl_io *io); 510static void ctl_lun_thread(void *arg); 511static void ctl_thresh_thread(void *arg); 512static void ctl_work_thread(void *arg); 513static void ctl_enqueue_incoming(union ctl_io *io); 514static void ctl_enqueue_rtr(union ctl_io *io); 515static void ctl_enqueue_done(union ctl_io *io); 516static void ctl_enqueue_isc(union ctl_io *io); 517static const struct ctl_cmd_entry * 518 ctl_get_cmd_entry(struct ctl_scsiio *ctsio, int *sa); 519static const struct ctl_cmd_entry * 520 ctl_validate_command(struct ctl_scsiio *ctsio); 521static int ctl_cmd_applicable(uint8_t lun_type, 522 const struct ctl_cmd_entry *entry); 523 524static uint64_t ctl_get_prkey(struct ctl_lun *lun, uint32_t residx); 525static void ctl_clr_prkey(struct ctl_lun *lun, uint32_t residx); 526static void ctl_alloc_prkey(struct ctl_lun *lun, uint32_t residx); 527static void ctl_set_prkey(struct ctl_lun *lun, uint32_t residx, uint64_t key); 528 529/* 530 * Load the serialization table. This isn't very pretty, but is probably 531 * the easiest way to do it. 532 */ 533#include "ctl_ser_table.c" 534 535/* 536 * We only need to define open, close and ioctl routines for this driver. 537 */ 538static struct cdevsw ctl_cdevsw = { 539 .d_version = D_VERSION, 540 .d_flags = 0, 541 .d_open = ctl_open, 542 .d_close = ctl_close, 543 .d_ioctl = ctl_ioctl, 544 .d_name = "ctl", 545}; 546 547 548MALLOC_DEFINE(M_CTL, "ctlmem", "Memory used for CTL"); 549 550static int ctl_module_event_handler(module_t, int /*modeventtype_t*/, void *); 551 552static moduledata_t ctl_moduledata = { 553 "ctl", 554 ctl_module_event_handler, 555 NULL 556}; 557 558DECLARE_MODULE(ctl, ctl_moduledata, SI_SUB_CONFIGURE, SI_ORDER_THIRD); 559MODULE_VERSION(ctl, 1); 560 561static struct ctl_frontend ha_frontend = 562{ 563 .name = "ha", 564}; 565 566static void 567ctl_ha_datamove(union ctl_io *io) 568{ 569 struct ctl_lun *lun; 570 struct ctl_sg_entry *sgl; 571 union ctl_ha_msg msg; 572 uint32_t sg_entries_sent; 573 int do_sg_copy, i, j; 574 575 lun = (struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 576 memset(&msg.dt, 0, sizeof(msg.dt)); 577 msg.hdr.msg_type = CTL_MSG_DATAMOVE; 578 msg.hdr.original_sc = io->io_hdr.original_sc; 579 msg.hdr.serializing_sc = io; 580 msg.hdr.nexus = io->io_hdr.nexus; 581 msg.hdr.status = io->io_hdr.status; 582 msg.dt.flags = io->io_hdr.flags; 583 584 /* 585 * We convert everything into a S/G list here. We can't 586 * pass by reference, only by value between controllers. 587 * So we can't pass a pointer to the S/G list, only as many 588 * S/G entries as we can fit in here. If it's possible for 589 * us to get more than CTL_HA_MAX_SG_ENTRIES S/G entries, 590 * then we need to break this up into multiple transfers. 591 */ 592 if (io->scsiio.kern_sg_entries == 0) { 593 msg.dt.kern_sg_entries = 1; 594#if 0 595 if (io->io_hdr.flags & CTL_FLAG_BUS_ADDR) { 596 msg.dt.sg_list[0].addr = io->scsiio.kern_data_ptr; 597 } else { 598 /* XXX KDM use busdma here! */ 599 msg.dt.sg_list[0].addr = 600 (void *)vtophys(io->scsiio.kern_data_ptr); 601 } 602#else 603 KASSERT((io->io_hdr.flags & CTL_FLAG_BUS_ADDR) == 0, 604 ("HA does not support BUS_ADDR")); 605 msg.dt.sg_list[0].addr = io->scsiio.kern_data_ptr; 606#endif 607 msg.dt.sg_list[0].len = io->scsiio.kern_data_len; 608 do_sg_copy = 0; 609 } else { 610 msg.dt.kern_sg_entries = io->scsiio.kern_sg_entries; 611 do_sg_copy = 1; 612 } 613 614 msg.dt.kern_data_len = io->scsiio.kern_data_len; 615 msg.dt.kern_total_len = io->scsiio.kern_total_len; 616 msg.dt.kern_data_resid = io->scsiio.kern_data_resid; 617 msg.dt.kern_rel_offset = io->scsiio.kern_rel_offset; 618 msg.dt.sg_sequence = 0; 619 620 /* 621 * Loop until we've sent all of the S/G entries. On the 622 * other end, we'll recompose these S/G entries into one 623 * contiguous list before processing. 624 */ 625 for (sg_entries_sent = 0; sg_entries_sent < msg.dt.kern_sg_entries; 626 msg.dt.sg_sequence++) { 627 msg.dt.cur_sg_entries = MIN((sizeof(msg.dt.sg_list) / 628 sizeof(msg.dt.sg_list[0])), 629 msg.dt.kern_sg_entries - sg_entries_sent); 630 if (do_sg_copy != 0) { 631 sgl = (struct ctl_sg_entry *)io->scsiio.kern_data_ptr; 632 for (i = sg_entries_sent, j = 0; 633 i < msg.dt.cur_sg_entries; i++, j++) { 634#if 0 635 if (io->io_hdr.flags & CTL_FLAG_BUS_ADDR) { 636 msg.dt.sg_list[j].addr = sgl[i].addr; 637 } else { 638 /* XXX KDM use busdma here! */ 639 msg.dt.sg_list[j].addr = 640 (void *)vtophys(sgl[i].addr); 641 } 642#else 643 KASSERT((io->io_hdr.flags & 644 CTL_FLAG_BUS_ADDR) == 0, 645 ("HA does not support BUS_ADDR")); 646 msg.dt.sg_list[j].addr = sgl[i].addr; 647#endif 648 msg.dt.sg_list[j].len = sgl[i].len; 649 } 650 } 651 652 sg_entries_sent += msg.dt.cur_sg_entries; 653 msg.dt.sg_last = (sg_entries_sent >= msg.dt.kern_sg_entries); 654 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, 655 sizeof(msg.dt) - sizeof(msg.dt.sg_list) + 656 sizeof(struct ctl_sg_entry) * msg.dt.cur_sg_entries, 657 M_WAITOK) > CTL_HA_STATUS_SUCCESS) { 658 io->io_hdr.port_status = 31341; 659 io->scsiio.be_move_done(io); 660 return; 661 } 662 msg.dt.sent_sg_entries = sg_entries_sent; 663 } 664 665 /* 666 * Officially handover the request from us to peer. 667 * If failover has just happened, then we must return error. 668 * If failover happen just after, then it is not our problem. 669 */ 670 if (lun) 671 mtx_lock(&lun->lun_lock); 672 if (io->io_hdr.flags & CTL_FLAG_FAILOVER) { 673 if (lun) 674 mtx_unlock(&lun->lun_lock); 675 io->io_hdr.port_status = 31342; 676 io->scsiio.be_move_done(io); 677 return; 678 } 679 io->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 680 io->io_hdr.flags |= CTL_FLAG_DMA_INPROG; 681 if (lun) 682 mtx_unlock(&lun->lun_lock); 683} 684 685static void 686ctl_ha_done(union ctl_io *io) 687{ 688 union ctl_ha_msg msg; 689 690 if (io->io_hdr.io_type == CTL_IO_SCSI) { 691 memset(&msg, 0, sizeof(msg)); 692 msg.hdr.msg_type = CTL_MSG_FINISH_IO; 693 msg.hdr.original_sc = io->io_hdr.original_sc; 694 msg.hdr.nexus = io->io_hdr.nexus; 695 msg.hdr.status = io->io_hdr.status; 696 msg.scsi.scsi_status = io->scsiio.scsi_status; 697 msg.scsi.tag_num = io->scsiio.tag_num; 698 msg.scsi.tag_type = io->scsiio.tag_type; 699 msg.scsi.sense_len = io->scsiio.sense_len; 700 msg.scsi.sense_residual = io->scsiio.sense_residual; 701 msg.scsi.residual = io->scsiio.residual; 702 memcpy(&msg.scsi.sense_data, &io->scsiio.sense_data, 703 io->scsiio.sense_len); 704 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, 705 sizeof(msg.scsi) - sizeof(msg.scsi.sense_data) + 706 msg.scsi.sense_len, M_WAITOK); 707 } 708 ctl_free_io(io); 709} 710 711static void 712ctl_isc_handler_finish_xfer(struct ctl_softc *ctl_softc, 713 union ctl_ha_msg *msg_info) 714{ 715 struct ctl_scsiio *ctsio; 716 717 if (msg_info->hdr.original_sc == NULL) { 718 printf("%s: original_sc == NULL!\n", __func__); 719 /* XXX KDM now what? */ 720 return; 721 } 722 723 ctsio = &msg_info->hdr.original_sc->scsiio; 724 ctsio->io_hdr.flags |= CTL_FLAG_IO_ACTIVE; 725 ctsio->io_hdr.msg_type = CTL_MSG_FINISH_IO; 726 ctsio->io_hdr.status = msg_info->hdr.status; 727 ctsio->scsi_status = msg_info->scsi.scsi_status; 728 ctsio->sense_len = msg_info->scsi.sense_len; 729 ctsio->sense_residual = msg_info->scsi.sense_residual; 730 ctsio->residual = msg_info->scsi.residual; 731 memcpy(&ctsio->sense_data, &msg_info->scsi.sense_data, 732 msg_info->scsi.sense_len); 733 ctl_enqueue_isc((union ctl_io *)ctsio); 734} 735 736static void 737ctl_isc_handler_finish_ser_only(struct ctl_softc *ctl_softc, 738 union ctl_ha_msg *msg_info) 739{ 740 struct ctl_scsiio *ctsio; 741 742 if (msg_info->hdr.serializing_sc == NULL) { 743 printf("%s: serializing_sc == NULL!\n", __func__); 744 /* XXX KDM now what? */ 745 return; 746 } 747 748 ctsio = &msg_info->hdr.serializing_sc->scsiio; 749 ctsio->io_hdr.msg_type = CTL_MSG_FINISH_IO; 750 ctl_enqueue_isc((union ctl_io *)ctsio); 751} 752 753void 754ctl_isc_announce_lun(struct ctl_lun *lun) 755{ 756 struct ctl_softc *softc = lun->ctl_softc; 757 union ctl_ha_msg *msg; 758 struct ctl_ha_msg_lun_pr_key pr_key; 759 int i, k; 760 761 if (softc->ha_link != CTL_HA_LINK_ONLINE) 762 return; 763 mtx_lock(&lun->lun_lock); 764 i = sizeof(msg->lun); 765 if (lun->lun_devid) 766 i += lun->lun_devid->len; 767 i += sizeof(pr_key) * lun->pr_key_count; 768alloc: 769 mtx_unlock(&lun->lun_lock); 770 msg = malloc(i, M_CTL, M_WAITOK); 771 mtx_lock(&lun->lun_lock); 772 k = sizeof(msg->lun); 773 if (lun->lun_devid) 774 k += lun->lun_devid->len; 775 k += sizeof(pr_key) * lun->pr_key_count; 776 if (i < k) { 777 free(msg, M_CTL); 778 i = k; 779 goto alloc; 780 } 781 bzero(&msg->lun, sizeof(msg->lun)); 782 msg->hdr.msg_type = CTL_MSG_LUN_SYNC; 783 msg->hdr.nexus.targ_lun = lun->lun; 784 msg->hdr.nexus.targ_mapped_lun = lun->lun; 785 msg->lun.flags = lun->flags; 786 msg->lun.pr_generation = lun->pr_generation; 787 msg->lun.pr_res_idx = lun->pr_res_idx; 788 msg->lun.pr_res_type = lun->pr_res_type; 789 msg->lun.pr_key_count = lun->pr_key_count; 790 i = 0; 791 if (lun->lun_devid) { 792 msg->lun.lun_devid_len = lun->lun_devid->len; 793 memcpy(&msg->lun.data[i], lun->lun_devid->data, 794 msg->lun.lun_devid_len); 795 i += msg->lun.lun_devid_len; 796 } 797 for (k = 0; k < CTL_MAX_INITIATORS; k++) { 798 if ((pr_key.pr_key = ctl_get_prkey(lun, k)) == 0) 799 continue; 800 pr_key.pr_iid = k; 801 memcpy(&msg->lun.data[i], &pr_key, sizeof(pr_key)); 802 i += sizeof(pr_key); 803 } 804 mtx_unlock(&lun->lun_lock); 805 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg->port, sizeof(msg->port) + i, 806 M_WAITOK); 807 free(msg, M_CTL); 808 809 if (lun->flags & CTL_LUN_PRIMARY_SC) { 810 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 811 ctl_isc_announce_mode(lun, -1, 812 lun->mode_pages.index[i].page_code & SMPH_PC_MASK, 813 lun->mode_pages.index[i].subpage); 814 } 815 } 816} 817 818void 819ctl_isc_announce_port(struct ctl_port *port) 820{ 821 struct ctl_softc *softc = port->ctl_softc; 822 union ctl_ha_msg *msg; 823 int i; 824 825 if (port->targ_port < softc->port_min || 826 port->targ_port >= softc->port_max || 827 softc->ha_link != CTL_HA_LINK_ONLINE) 828 return; 829 i = sizeof(msg->port) + strlen(port->port_name) + 1; 830 if (port->lun_map) 831 i += sizeof(uint32_t) * CTL_MAX_LUNS; 832 if (port->port_devid) 833 i += port->port_devid->len; 834 if (port->target_devid) 835 i += port->target_devid->len; 836 if (port->init_devid) 837 i += port->init_devid->len; 838 msg = malloc(i, M_CTL, M_WAITOK); 839 bzero(&msg->port, sizeof(msg->port)); 840 msg->hdr.msg_type = CTL_MSG_PORT_SYNC; 841 msg->hdr.nexus.targ_port = port->targ_port; 842 msg->port.port_type = port->port_type; 843 msg->port.physical_port = port->physical_port; 844 msg->port.virtual_port = port->virtual_port; 845 msg->port.status = port->status; 846 i = 0; 847 msg->port.name_len = sprintf(&msg->port.data[i], 848 "%d:%s", softc->ha_id, port->port_name) + 1; 849 i += msg->port.name_len; 850 if (port->lun_map) { 851 msg->port.lun_map_len = sizeof(uint32_t) * CTL_MAX_LUNS; 852 memcpy(&msg->port.data[i], port->lun_map, 853 msg->port.lun_map_len); 854 i += msg->port.lun_map_len; 855 } 856 if (port->port_devid) { 857 msg->port.port_devid_len = port->port_devid->len; 858 memcpy(&msg->port.data[i], port->port_devid->data, 859 msg->port.port_devid_len); 860 i += msg->port.port_devid_len; 861 } 862 if (port->target_devid) { 863 msg->port.target_devid_len = port->target_devid->len; 864 memcpy(&msg->port.data[i], port->target_devid->data, 865 msg->port.target_devid_len); 866 i += msg->port.target_devid_len; 867 } 868 if (port->init_devid) { 869 msg->port.init_devid_len = port->init_devid->len; 870 memcpy(&msg->port.data[i], port->init_devid->data, 871 msg->port.init_devid_len); 872 i += msg->port.init_devid_len; 873 } 874 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg->port, sizeof(msg->port) + i, 875 M_WAITOK); 876 free(msg, M_CTL); 877} 878 879void 880ctl_isc_announce_iid(struct ctl_port *port, int iid) 881{ 882 struct ctl_softc *softc = port->ctl_softc; 883 union ctl_ha_msg *msg; 884 int i, l; 885 886 if (port->targ_port < softc->port_min || 887 port->targ_port >= softc->port_max || 888 softc->ha_link != CTL_HA_LINK_ONLINE) 889 return; 890 mtx_lock(&softc->ctl_lock); 891 i = sizeof(msg->iid); 892 l = 0; 893 if (port->wwpn_iid[iid].name) 894 l = strlen(port->wwpn_iid[iid].name) + 1; 895 i += l; 896 msg = malloc(i, M_CTL, M_NOWAIT); 897 if (msg == NULL) { 898 mtx_unlock(&softc->ctl_lock); 899 return; 900 } 901 bzero(&msg->iid, sizeof(msg->iid)); 902 msg->hdr.msg_type = CTL_MSG_IID_SYNC; 903 msg->hdr.nexus.targ_port = port->targ_port; 904 msg->hdr.nexus.initid = iid; 905 msg->iid.in_use = port->wwpn_iid[iid].in_use; 906 msg->iid.name_len = l; 907 msg->iid.wwpn = port->wwpn_iid[iid].wwpn; 908 if (port->wwpn_iid[iid].name) 909 strlcpy(msg->iid.data, port->wwpn_iid[iid].name, l); 910 mtx_unlock(&softc->ctl_lock); 911 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg->iid, i, M_NOWAIT); 912 free(msg, M_CTL); 913} 914 915void 916ctl_isc_announce_mode(struct ctl_lun *lun, uint32_t initidx, 917 uint8_t page, uint8_t subpage) 918{ 919 struct ctl_softc *softc = lun->ctl_softc; 920 union ctl_ha_msg msg; 921 int i; 922 923 if (softc->ha_link != CTL_HA_LINK_ONLINE) 924 return; 925 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 926 if ((lun->mode_pages.index[i].page_code & SMPH_PC_MASK) == 927 page && lun->mode_pages.index[i].subpage == subpage) 928 break; 929 } 930 if (i == CTL_NUM_MODE_PAGES) 931 return; 932 933 /* Don't try to replicate pages not present on this device. */ 934 if (lun->mode_pages.index[i].page_data == NULL) 935 return; 936 937 bzero(&msg.mode, sizeof(msg.mode)); 938 msg.hdr.msg_type = CTL_MSG_MODE_SYNC; 939 msg.hdr.nexus.targ_port = initidx / CTL_MAX_INIT_PER_PORT; 940 msg.hdr.nexus.initid = initidx % CTL_MAX_INIT_PER_PORT; 941 msg.hdr.nexus.targ_lun = lun->lun; 942 msg.hdr.nexus.targ_mapped_lun = lun->lun; 943 msg.mode.page_code = page; 944 msg.mode.subpage = subpage; 945 msg.mode.page_len = lun->mode_pages.index[i].page_len; 946 memcpy(msg.mode.data, lun->mode_pages.index[i].page_data, 947 msg.mode.page_len); 948 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg.mode, sizeof(msg.mode), 949 M_WAITOK); 950} 951 952static void 953ctl_isc_ha_link_up(struct ctl_softc *softc) 954{ 955 struct ctl_port *port; 956 struct ctl_lun *lun; 957 union ctl_ha_msg msg; 958 int i; 959 960 /* Announce this node parameters to peer for validation. */ 961 msg.login.msg_type = CTL_MSG_LOGIN; 962 msg.login.version = CTL_HA_VERSION; 963 msg.login.ha_mode = softc->ha_mode; 964 msg.login.ha_id = softc->ha_id; 965 msg.login.max_luns = CTL_MAX_LUNS; 966 msg.login.max_ports = CTL_MAX_PORTS; 967 msg.login.max_init_per_port = CTL_MAX_INIT_PER_PORT; 968 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg.login, sizeof(msg.login), 969 M_WAITOK); 970 971 STAILQ_FOREACH(port, &softc->port_list, links) { 972 ctl_isc_announce_port(port); 973 for (i = 0; i < CTL_MAX_INIT_PER_PORT; i++) { 974 if (port->wwpn_iid[i].in_use) 975 ctl_isc_announce_iid(port, i); 976 } 977 } 978 STAILQ_FOREACH(lun, &softc->lun_list, links) 979 ctl_isc_announce_lun(lun); 980} 981 982static void 983ctl_isc_ha_link_down(struct ctl_softc *softc) 984{ 985 struct ctl_port *port; 986 struct ctl_lun *lun; 987 union ctl_io *io; 988 int i; 989 990 mtx_lock(&softc->ctl_lock); 991 STAILQ_FOREACH(lun, &softc->lun_list, links) { 992 mtx_lock(&lun->lun_lock); 993 if (lun->flags & CTL_LUN_PEER_SC_PRIMARY) { 994 lun->flags &= ~CTL_LUN_PEER_SC_PRIMARY; 995 ctl_est_ua_all(lun, -1, CTL_UA_ASYM_ACC_CHANGE); 996 } 997 mtx_unlock(&lun->lun_lock); 998 999 mtx_unlock(&softc->ctl_lock); 1000 io = ctl_alloc_io(softc->othersc_pool); 1001 mtx_lock(&softc->ctl_lock); 1002 ctl_zero_io(io); 1003 io->io_hdr.msg_type = CTL_MSG_FAILOVER; 1004 io->io_hdr.nexus.targ_mapped_lun = lun->lun; 1005 ctl_enqueue_isc(io); 1006 } 1007 1008 STAILQ_FOREACH(port, &softc->port_list, links) { 1009 if (port->targ_port >= softc->port_min && 1010 port->targ_port < softc->port_max) 1011 continue; 1012 port->status &= ~CTL_PORT_STATUS_ONLINE; 1013 for (i = 0; i < CTL_MAX_INIT_PER_PORT; i++) { 1014 port->wwpn_iid[i].in_use = 0; 1015 free(port->wwpn_iid[i].name, M_CTL); 1016 port->wwpn_iid[i].name = NULL; 1017 } 1018 } 1019 mtx_unlock(&softc->ctl_lock); 1020} 1021 1022static void 1023ctl_isc_ua(struct ctl_softc *softc, union ctl_ha_msg *msg, int len) 1024{ 1025 struct ctl_lun *lun; 1026 uint32_t iid = ctl_get_initindex(&msg->hdr.nexus); 1027 1028 mtx_lock(&softc->ctl_lock); 1029 if (msg->hdr.nexus.targ_lun < CTL_MAX_LUNS && 1030 (lun = softc->ctl_luns[msg->hdr.nexus.targ_mapped_lun]) != NULL) { 1031 mtx_lock(&lun->lun_lock); 1032 mtx_unlock(&softc->ctl_lock); 1033 if (msg->ua.ua_type == CTL_UA_THIN_PROV_THRES && 1034 msg->ua.ua_set) 1035 memcpy(lun->ua_tpt_info, msg->ua.ua_info, 8); 1036 if (msg->ua.ua_all) { 1037 if (msg->ua.ua_set) 1038 ctl_est_ua_all(lun, iid, msg->ua.ua_type); 1039 else 1040 ctl_clr_ua_all(lun, iid, msg->ua.ua_type); 1041 } else { 1042 if (msg->ua.ua_set) 1043 ctl_est_ua(lun, iid, msg->ua.ua_type); 1044 else 1045 ctl_clr_ua(lun, iid, msg->ua.ua_type); 1046 } 1047 mtx_unlock(&lun->lun_lock); 1048 } else 1049 mtx_unlock(&softc->ctl_lock); 1050} 1051 1052static void 1053ctl_isc_lun_sync(struct ctl_softc *softc, union ctl_ha_msg *msg, int len) 1054{ 1055 struct ctl_lun *lun; 1056 struct ctl_ha_msg_lun_pr_key pr_key; 1057 int i, k; 1058 ctl_lun_flags oflags; 1059 uint32_t targ_lun; 1060 1061 targ_lun = msg->hdr.nexus.targ_mapped_lun; 1062 mtx_lock(&softc->ctl_lock); 1063 if ((targ_lun >= CTL_MAX_LUNS) || 1064 ((lun = softc->ctl_luns[targ_lun]) == NULL)) { 1065 mtx_unlock(&softc->ctl_lock); 1066 return; 1067 } 1068 mtx_lock(&lun->lun_lock); 1069 mtx_unlock(&softc->ctl_lock); 1070 if (lun->flags & CTL_LUN_DISABLED) { 1071 mtx_unlock(&lun->lun_lock); 1072 return; 1073 } 1074 i = (lun->lun_devid != NULL) ? lun->lun_devid->len : 0; 1075 if (msg->lun.lun_devid_len != i || (i > 0 && 1076 memcmp(&msg->lun.data[0], lun->lun_devid->data, i) != 0)) { 1077 mtx_unlock(&lun->lun_lock); 1078 printf("%s: Received conflicting HA LUN %d\n", 1079 __func__, msg->hdr.nexus.targ_lun); 1080 return; 1081 } else { 1082 /* Record whether peer is primary. */ 1083 oflags = lun->flags; 1084 if ((msg->lun.flags & CTL_LUN_PRIMARY_SC) && 1085 (msg->lun.flags & CTL_LUN_DISABLED) == 0) 1086 lun->flags |= CTL_LUN_PEER_SC_PRIMARY; 1087 else 1088 lun->flags &= ~CTL_LUN_PEER_SC_PRIMARY; 1089 if (oflags != lun->flags) 1090 ctl_est_ua_all(lun, -1, CTL_UA_ASYM_ACC_CHANGE); 1091 1092 /* If peer is primary and we are not -- use data */ 1093 if ((lun->flags & CTL_LUN_PRIMARY_SC) == 0 && 1094 (lun->flags & CTL_LUN_PEER_SC_PRIMARY)) { 1095 lun->pr_generation = msg->lun.pr_generation; 1096 lun->pr_res_idx = msg->lun.pr_res_idx; 1097 lun->pr_res_type = msg->lun.pr_res_type; 1098 lun->pr_key_count = msg->lun.pr_key_count; 1099 for (k = 0; k < CTL_MAX_INITIATORS; k++) 1100 ctl_clr_prkey(lun, k); 1101 for (k = 0; k < msg->lun.pr_key_count; k++) { 1102 memcpy(&pr_key, &msg->lun.data[i], 1103 sizeof(pr_key)); 1104 ctl_alloc_prkey(lun, pr_key.pr_iid); 1105 ctl_set_prkey(lun, pr_key.pr_iid, 1106 pr_key.pr_key); 1107 i += sizeof(pr_key); 1108 } 1109 } 1110 1111 mtx_unlock(&lun->lun_lock); 1112 CTL_DEBUG_PRINT(("%s: Known LUN %d, peer is %s\n", 1113 __func__, msg->hdr.nexus.targ_lun, 1114 (msg->lun.flags & CTL_LUN_PRIMARY_SC) ? 1115 "primary" : "secondary")); 1116 1117 /* If we are primary but peer doesn't know -- notify */ 1118 if ((lun->flags & CTL_LUN_PRIMARY_SC) && 1119 (msg->lun.flags & CTL_LUN_PEER_SC_PRIMARY) == 0) 1120 ctl_isc_announce_lun(lun); 1121 } 1122} 1123 1124static void 1125ctl_isc_port_sync(struct ctl_softc *softc, union ctl_ha_msg *msg, int len) 1126{ 1127 struct ctl_port *port; 1128 struct ctl_lun *lun; 1129 int i, new; 1130 1131 port = softc->ctl_ports[msg->hdr.nexus.targ_port]; 1132 if (port == NULL) { 1133 CTL_DEBUG_PRINT(("%s: New port %d\n", __func__, 1134 msg->hdr.nexus.targ_port)); 1135 new = 1; 1136 port = malloc(sizeof(*port), M_CTL, M_WAITOK | M_ZERO); 1137 port->frontend = &ha_frontend; 1138 port->targ_port = msg->hdr.nexus.targ_port; 1139 port->fe_datamove = ctl_ha_datamove; 1140 port->fe_done = ctl_ha_done; 1141 } else if (port->frontend == &ha_frontend) { 1142 CTL_DEBUG_PRINT(("%s: Updated port %d\n", __func__, 1143 msg->hdr.nexus.targ_port)); 1144 new = 0; 1145 } else { 1146 printf("%s: Received conflicting HA port %d\n", 1147 __func__, msg->hdr.nexus.targ_port); 1148 return; 1149 } 1150 port->port_type = msg->port.port_type; 1151 port->physical_port = msg->port.physical_port; 1152 port->virtual_port = msg->port.virtual_port; 1153 port->status = msg->port.status; 1154 i = 0; 1155 free(port->port_name, M_CTL); 1156 port->port_name = strndup(&msg->port.data[i], msg->port.name_len, 1157 M_CTL); 1158 i += msg->port.name_len; 1159 if (msg->port.lun_map_len != 0) { 1160 if (port->lun_map == NULL) 1161 port->lun_map = malloc(sizeof(uint32_t) * CTL_MAX_LUNS, 1162 M_CTL, M_WAITOK); 1163 memcpy(port->lun_map, &msg->port.data[i], 1164 sizeof(uint32_t) * CTL_MAX_LUNS); 1165 i += msg->port.lun_map_len; 1166 } else { 1167 free(port->lun_map, M_CTL); 1168 port->lun_map = NULL; 1169 } 1170 if (msg->port.port_devid_len != 0) { 1171 if (port->port_devid == NULL || 1172 port->port_devid->len != msg->port.port_devid_len) { 1173 free(port->port_devid, M_CTL); 1174 port->port_devid = malloc(sizeof(struct ctl_devid) + 1175 msg->port.port_devid_len, M_CTL, M_WAITOK); 1176 } 1177 memcpy(port->port_devid->data, &msg->port.data[i], 1178 msg->port.port_devid_len); 1179 port->port_devid->len = msg->port.port_devid_len; 1180 i += msg->port.port_devid_len; 1181 } else { 1182 free(port->port_devid, M_CTL); 1183 port->port_devid = NULL; 1184 } 1185 if (msg->port.target_devid_len != 0) { 1186 if (port->target_devid == NULL || 1187 port->target_devid->len != msg->port.target_devid_len) { 1188 free(port->target_devid, M_CTL); 1189 port->target_devid = malloc(sizeof(struct ctl_devid) + 1190 msg->port.target_devid_len, M_CTL, M_WAITOK); 1191 } 1192 memcpy(port->target_devid->data, &msg->port.data[i], 1193 msg->port.target_devid_len); 1194 port->target_devid->len = msg->port.target_devid_len; 1195 i += msg->port.target_devid_len; 1196 } else { 1197 free(port->target_devid, M_CTL); 1198 port->target_devid = NULL; 1199 } 1200 if (msg->port.init_devid_len != 0) { 1201 if (port->init_devid == NULL || 1202 port->init_devid->len != msg->port.init_devid_len) { 1203 free(port->init_devid, M_CTL); 1204 port->init_devid = malloc(sizeof(struct ctl_devid) + 1205 msg->port.init_devid_len, M_CTL, M_WAITOK); 1206 } 1207 memcpy(port->init_devid->data, &msg->port.data[i], 1208 msg->port.init_devid_len); 1209 port->init_devid->len = msg->port.init_devid_len; 1210 i += msg->port.init_devid_len; 1211 } else { 1212 free(port->init_devid, M_CTL); 1213 port->init_devid = NULL; 1214 } 1215 if (new) { 1216 if (ctl_port_register(port) != 0) { 1217 printf("%s: ctl_port_register() failed with error\n", 1218 __func__); 1219 } 1220 } 1221 mtx_lock(&softc->ctl_lock); 1222 STAILQ_FOREACH(lun, &softc->lun_list, links) { 1223 if (ctl_lun_map_to_port(port, lun->lun) >= CTL_MAX_LUNS) 1224 continue; 1225 mtx_lock(&lun->lun_lock); 1226 ctl_est_ua_all(lun, -1, CTL_UA_INQ_CHANGE); 1227 mtx_unlock(&lun->lun_lock); 1228 } 1229 mtx_unlock(&softc->ctl_lock); 1230} 1231 1232static void 1233ctl_isc_iid_sync(struct ctl_softc *softc, union ctl_ha_msg *msg, int len) 1234{ 1235 struct ctl_port *port; 1236 int iid; 1237 1238 port = softc->ctl_ports[msg->hdr.nexus.targ_port]; 1239 if (port == NULL) { 1240 printf("%s: Received IID for unknown port %d\n", 1241 __func__, msg->hdr.nexus.targ_port); 1242 return; 1243 } 1244 iid = msg->hdr.nexus.initid; 1245 port->wwpn_iid[iid].in_use = msg->iid.in_use; 1246 port->wwpn_iid[iid].wwpn = msg->iid.wwpn; 1247 free(port->wwpn_iid[iid].name, M_CTL); 1248 if (msg->iid.name_len) { 1249 port->wwpn_iid[iid].name = strndup(&msg->iid.data[0], 1250 msg->iid.name_len, M_CTL); 1251 } else 1252 port->wwpn_iid[iid].name = NULL; 1253} 1254 1255static void 1256ctl_isc_login(struct ctl_softc *softc, union ctl_ha_msg *msg, int len) 1257{ 1258 1259 if (msg->login.version != CTL_HA_VERSION) { 1260 printf("CTL HA peers have different versions %d != %d\n", 1261 msg->login.version, CTL_HA_VERSION); 1262 ctl_ha_msg_abort(CTL_HA_CHAN_CTL); 1263 return; 1264 } 1265 if (msg->login.ha_mode != softc->ha_mode) { 1266 printf("CTL HA peers have different ha_mode %d != %d\n", 1267 msg->login.ha_mode, softc->ha_mode); 1268 ctl_ha_msg_abort(CTL_HA_CHAN_CTL); 1269 return; 1270 } 1271 if (msg->login.ha_id == softc->ha_id) { 1272 printf("CTL HA peers have same ha_id %d\n", msg->login.ha_id); 1273 ctl_ha_msg_abort(CTL_HA_CHAN_CTL); 1274 return; 1275 } 1276 if (msg->login.max_luns != CTL_MAX_LUNS || 1277 msg->login.max_ports != CTL_MAX_PORTS || 1278 msg->login.max_init_per_port != CTL_MAX_INIT_PER_PORT) { 1279 printf("CTL HA peers have different limits\n"); 1280 ctl_ha_msg_abort(CTL_HA_CHAN_CTL); 1281 return; 1282 } 1283} 1284 1285static void 1286ctl_isc_mode_sync(struct ctl_softc *softc, union ctl_ha_msg *msg, int len) 1287{ 1288 struct ctl_lun *lun; 1289 int i; 1290 uint32_t initidx, targ_lun; 1291 1292 targ_lun = msg->hdr.nexus.targ_mapped_lun; 1293 mtx_lock(&softc->ctl_lock); 1294 if ((targ_lun >= CTL_MAX_LUNS) || 1295 ((lun = softc->ctl_luns[targ_lun]) == NULL)) { 1296 mtx_unlock(&softc->ctl_lock); 1297 return; 1298 } 1299 mtx_lock(&lun->lun_lock); 1300 mtx_unlock(&softc->ctl_lock); 1301 if (lun->flags & CTL_LUN_DISABLED) { 1302 mtx_unlock(&lun->lun_lock); 1303 return; 1304 } 1305 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 1306 if ((lun->mode_pages.index[i].page_code & SMPH_PC_MASK) == 1307 msg->mode.page_code && 1308 lun->mode_pages.index[i].subpage == msg->mode.subpage) 1309 break; 1310 } 1311 if (i == CTL_NUM_MODE_PAGES) { 1312 mtx_unlock(&lun->lun_lock); 1313 return; 1314 } 1315 memcpy(lun->mode_pages.index[i].page_data, msg->mode.data, 1316 lun->mode_pages.index[i].page_len); 1317 initidx = ctl_get_initindex(&msg->hdr.nexus); 1318 if (initidx != -1) 1319 ctl_est_ua_all(lun, initidx, CTL_UA_MODE_CHANGE); 1320 mtx_unlock(&lun->lun_lock); 1321} 1322 1323/* 1324 * ISC (Inter Shelf Communication) event handler. Events from the HA 1325 * subsystem come in here. 1326 */ 1327static void 1328ctl_isc_event_handler(ctl_ha_channel channel, ctl_ha_event event, int param) 1329{ 1330 struct ctl_softc *softc = control_softc; 1331 union ctl_io *io; 1332 struct ctl_prio *presio; 1333 ctl_ha_status isc_status; 1334 1335 CTL_DEBUG_PRINT(("CTL: Isc Msg event %d\n", event)); 1336 if (event == CTL_HA_EVT_MSG_RECV) { 1337 union ctl_ha_msg *msg, msgbuf; 1338 1339 if (param > sizeof(msgbuf)) 1340 msg = malloc(param, M_CTL, M_WAITOK); 1341 else 1342 msg = &msgbuf; 1343 isc_status = ctl_ha_msg_recv(CTL_HA_CHAN_CTL, msg, param, 1344 M_WAITOK); 1345 if (isc_status != CTL_HA_STATUS_SUCCESS) { 1346 printf("%s: Error receiving message: %d\n", 1347 __func__, isc_status); 1348 if (msg != &msgbuf) 1349 free(msg, M_CTL); 1350 return; 1351 } 1352 1353 CTL_DEBUG_PRINT(("CTL: msg_type %d\n", msg->msg_type)); 1354 switch (msg->hdr.msg_type) { 1355 case CTL_MSG_SERIALIZE: 1356 io = ctl_alloc_io(softc->othersc_pool); 1357 ctl_zero_io(io); 1358 // populate ctsio from msg 1359 io->io_hdr.io_type = CTL_IO_SCSI; 1360 io->io_hdr.msg_type = CTL_MSG_SERIALIZE; 1361 io->io_hdr.original_sc = msg->hdr.original_sc; 1362 io->io_hdr.flags |= CTL_FLAG_FROM_OTHER_SC | 1363 CTL_FLAG_IO_ACTIVE; 1364 /* 1365 * If we're in serialization-only mode, we don't 1366 * want to go through full done processing. Thus 1367 * the COPY flag. 1368 * 1369 * XXX KDM add another flag that is more specific. 1370 */ 1371 if (softc->ha_mode != CTL_HA_MODE_XFER) 1372 io->io_hdr.flags |= CTL_FLAG_INT_COPY; 1373 io->io_hdr.nexus = msg->hdr.nexus; 1374#if 0 1375 printf("port %u, iid %u, lun %u\n", 1376 io->io_hdr.nexus.targ_port, 1377 io->io_hdr.nexus.initid, 1378 io->io_hdr.nexus.targ_lun); 1379#endif 1380 io->scsiio.tag_num = msg->scsi.tag_num; 1381 io->scsiio.tag_type = msg->scsi.tag_type; 1382#ifdef CTL_TIME_IO 1383 io->io_hdr.start_time = time_uptime; 1384 getbinuptime(&io->io_hdr.start_bt); 1385#endif /* CTL_TIME_IO */ 1386 io->scsiio.cdb_len = msg->scsi.cdb_len; 1387 memcpy(io->scsiio.cdb, msg->scsi.cdb, 1388 CTL_MAX_CDBLEN); 1389 if (softc->ha_mode == CTL_HA_MODE_XFER) { 1390 const struct ctl_cmd_entry *entry; 1391 1392 entry = ctl_get_cmd_entry(&io->scsiio, NULL); 1393 io->io_hdr.flags &= ~CTL_FLAG_DATA_MASK; 1394 io->io_hdr.flags |= 1395 entry->flags & CTL_FLAG_DATA_MASK; 1396 } 1397 ctl_enqueue_isc(io); 1398 break; 1399 1400 /* Performed on the Originating SC, XFER mode only */ 1401 case CTL_MSG_DATAMOVE: { 1402 struct ctl_sg_entry *sgl; 1403 int i, j; 1404 1405 io = msg->hdr.original_sc; 1406 if (io == NULL) { 1407 printf("%s: original_sc == NULL!\n", __func__); 1408 /* XXX KDM do something here */ 1409 break; 1410 } 1411 io->io_hdr.msg_type = CTL_MSG_DATAMOVE; 1412 io->io_hdr.flags |= CTL_FLAG_IO_ACTIVE; 1413 /* 1414 * Keep track of this, we need to send it back over 1415 * when the datamove is complete. 1416 */ 1417 io->io_hdr.serializing_sc = msg->hdr.serializing_sc; 1418 if (msg->hdr.status == CTL_SUCCESS) 1419 io->io_hdr.status = msg->hdr.status; 1420 1421 if (msg->dt.sg_sequence == 0) { 1422#ifdef CTL_TIME_IO 1423 getbinuptime(&io->io_hdr.dma_start_bt); 1424#endif 1425 i = msg->dt.kern_sg_entries + 1426 msg->dt.kern_data_len / 1427 CTL_HA_DATAMOVE_SEGMENT + 1; 1428 sgl = malloc(sizeof(*sgl) * i, M_CTL, 1429 M_WAITOK | M_ZERO); 1430 io->io_hdr.remote_sglist = sgl; 1431 io->io_hdr.local_sglist = 1432 &sgl[msg->dt.kern_sg_entries]; 1433 1434 io->scsiio.kern_data_ptr = (uint8_t *)sgl; 1435 1436 io->scsiio.kern_sg_entries = 1437 msg->dt.kern_sg_entries; 1438 io->scsiio.rem_sg_entries = 1439 msg->dt.kern_sg_entries; 1440 io->scsiio.kern_data_len = 1441 msg->dt.kern_data_len; 1442 io->scsiio.kern_total_len = 1443 msg->dt.kern_total_len; 1444 io->scsiio.kern_data_resid = 1445 msg->dt.kern_data_resid; 1446 io->scsiio.kern_rel_offset = 1447 msg->dt.kern_rel_offset; 1448 io->io_hdr.flags &= ~CTL_FLAG_BUS_ADDR; 1449 io->io_hdr.flags |= msg->dt.flags & 1450 CTL_FLAG_BUS_ADDR; 1451 } else 1452 sgl = (struct ctl_sg_entry *) 1453 io->scsiio.kern_data_ptr; 1454 1455 for (i = msg->dt.sent_sg_entries, j = 0; 1456 i < (msg->dt.sent_sg_entries + 1457 msg->dt.cur_sg_entries); i++, j++) { 1458 sgl[i].addr = msg->dt.sg_list[j].addr; 1459 sgl[i].len = msg->dt.sg_list[j].len; 1460 1461#if 0 1462 printf("%s: DATAMOVE: %p,%lu j=%d, i=%d\n", 1463 __func__, sgl[i].addr, sgl[i].len, j, i); 1464#endif 1465 } 1466 1467 /* 1468 * If this is the last piece of the I/O, we've got 1469 * the full S/G list. Queue processing in the thread. 1470 * Otherwise wait for the next piece. 1471 */ 1472 if (msg->dt.sg_last != 0) 1473 ctl_enqueue_isc(io); 1474 break; 1475 } 1476 /* Performed on the Serializing (primary) SC, XFER mode only */ 1477 case CTL_MSG_DATAMOVE_DONE: { 1478 if (msg->hdr.serializing_sc == NULL) { 1479 printf("%s: serializing_sc == NULL!\n", 1480 __func__); 1481 /* XXX KDM now what? */ 1482 break; 1483 } 1484 /* 1485 * We grab the sense information here in case 1486 * there was a failure, so we can return status 1487 * back to the initiator. 1488 */ 1489 io = msg->hdr.serializing_sc; 1490 io->io_hdr.msg_type = CTL_MSG_DATAMOVE_DONE; 1491 io->io_hdr.flags &= ~CTL_FLAG_DMA_INPROG; 1492 io->io_hdr.flags |= CTL_FLAG_IO_ACTIVE; 1493 io->io_hdr.port_status = msg->scsi.fetd_status; 1494 io->scsiio.residual = msg->scsi.residual; 1495 if (msg->hdr.status != CTL_STATUS_NONE) { 1496 io->io_hdr.status = msg->hdr.status; 1497 io->scsiio.scsi_status = msg->scsi.scsi_status; 1498 io->scsiio.sense_len = msg->scsi.sense_len; 1499 io->scsiio.sense_residual =msg->scsi.sense_residual; 1500 memcpy(&io->scsiio.sense_data, 1501 &msg->scsi.sense_data, 1502 msg->scsi.sense_len); 1503 if (msg->hdr.status == CTL_SUCCESS) 1504 io->io_hdr.flags |= CTL_FLAG_STATUS_SENT; 1505 } 1506 ctl_enqueue_isc(io); 1507 break; 1508 } 1509 1510 /* Preformed on Originating SC, SER_ONLY mode */ 1511 case CTL_MSG_R2R: 1512 io = msg->hdr.original_sc; 1513 if (io == NULL) { 1514 printf("%s: original_sc == NULL!\n", 1515 __func__); 1516 break; 1517 } 1518 io->io_hdr.flags |= CTL_FLAG_IO_ACTIVE; 1519 io->io_hdr.msg_type = CTL_MSG_R2R; 1520 io->io_hdr.serializing_sc = msg->hdr.serializing_sc; 1521 ctl_enqueue_isc(io); 1522 break; 1523 1524 /* 1525 * Performed on Serializing(i.e. primary SC) SC in SER_ONLY 1526 * mode. 1527 * Performed on the Originating (i.e. secondary) SC in XFER 1528 * mode 1529 */ 1530 case CTL_MSG_FINISH_IO: 1531 if (softc->ha_mode == CTL_HA_MODE_XFER) 1532 ctl_isc_handler_finish_xfer(softc, msg); 1533 else 1534 ctl_isc_handler_finish_ser_only(softc, msg); 1535 break; 1536 1537 /* Preformed on Originating SC */ 1538 case CTL_MSG_BAD_JUJU: 1539 io = msg->hdr.original_sc; 1540 if (io == NULL) { 1541 printf("%s: Bad JUJU!, original_sc is NULL!\n", 1542 __func__); 1543 break; 1544 } 1545 ctl_copy_sense_data(msg, io); 1546 /* 1547 * IO should have already been cleaned up on other 1548 * SC so clear this flag so we won't send a message 1549 * back to finish the IO there. 1550 */ 1551 io->io_hdr.flags &= ~CTL_FLAG_SENT_2OTHER_SC; 1552 io->io_hdr.flags |= CTL_FLAG_IO_ACTIVE; 1553 1554 /* io = msg->hdr.serializing_sc; */ 1555 io->io_hdr.msg_type = CTL_MSG_BAD_JUJU; 1556 ctl_enqueue_isc(io); 1557 break; 1558 1559 /* Handle resets sent from the other side */ 1560 case CTL_MSG_MANAGE_TASKS: { 1561 struct ctl_taskio *taskio; 1562 taskio = (struct ctl_taskio *)ctl_alloc_io( 1563 softc->othersc_pool); 1564 ctl_zero_io((union ctl_io *)taskio); 1565 taskio->io_hdr.io_type = CTL_IO_TASK; 1566 taskio->io_hdr.flags |= CTL_FLAG_FROM_OTHER_SC; 1567 taskio->io_hdr.nexus = msg->hdr.nexus; 1568 taskio->task_action = msg->task.task_action; 1569 taskio->tag_num = msg->task.tag_num; 1570 taskio->tag_type = msg->task.tag_type; 1571#ifdef CTL_TIME_IO 1572 taskio->io_hdr.start_time = time_uptime; 1573 getbinuptime(&taskio->io_hdr.start_bt); 1574#endif /* CTL_TIME_IO */ 1575 ctl_run_task((union ctl_io *)taskio); 1576 break; 1577 } 1578 /* Persistent Reserve action which needs attention */ 1579 case CTL_MSG_PERS_ACTION: 1580 presio = (struct ctl_prio *)ctl_alloc_io( 1581 softc->othersc_pool); 1582 ctl_zero_io((union ctl_io *)presio); 1583 presio->io_hdr.msg_type = CTL_MSG_PERS_ACTION; 1584 presio->io_hdr.flags |= CTL_FLAG_FROM_OTHER_SC; 1585 presio->io_hdr.nexus = msg->hdr.nexus; 1586 presio->pr_msg = msg->pr; 1587 ctl_enqueue_isc((union ctl_io *)presio); 1588 break; 1589 case CTL_MSG_UA: 1590 ctl_isc_ua(softc, msg, param); 1591 break; 1592 case CTL_MSG_PORT_SYNC: 1593 ctl_isc_port_sync(softc, msg, param); 1594 break; 1595 case CTL_MSG_LUN_SYNC: 1596 ctl_isc_lun_sync(softc, msg, param); 1597 break; 1598 case CTL_MSG_IID_SYNC: 1599 ctl_isc_iid_sync(softc, msg, param); 1600 break; 1601 case CTL_MSG_LOGIN: 1602 ctl_isc_login(softc, msg, param); 1603 break; 1604 case CTL_MSG_MODE_SYNC: 1605 ctl_isc_mode_sync(softc, msg, param); 1606 break; 1607 default: 1608 printf("Received HA message of unknown type %d\n", 1609 msg->hdr.msg_type); 1610 ctl_ha_msg_abort(CTL_HA_CHAN_CTL); 1611 break; 1612 } 1613 if (msg != &msgbuf) 1614 free(msg, M_CTL); 1615 } else if (event == CTL_HA_EVT_LINK_CHANGE) { 1616 printf("CTL: HA link status changed from %d to %d\n", 1617 softc->ha_link, param); 1618 if (param == softc->ha_link) 1619 return; 1620 if (softc->ha_link == CTL_HA_LINK_ONLINE) { 1621 softc->ha_link = param; 1622 ctl_isc_ha_link_down(softc); 1623 } else { 1624 softc->ha_link = param; 1625 if (softc->ha_link == CTL_HA_LINK_ONLINE) 1626 ctl_isc_ha_link_up(softc); 1627 } 1628 return; 1629 } else { 1630 printf("ctl_isc_event_handler: Unknown event %d\n", event); 1631 return; 1632 } 1633} 1634 1635static void 1636ctl_copy_sense_data(union ctl_ha_msg *src, union ctl_io *dest) 1637{ 1638 1639 memcpy(&dest->scsiio.sense_data, &src->scsi.sense_data, 1640 src->scsi.sense_len); 1641 dest->scsiio.scsi_status = src->scsi.scsi_status; 1642 dest->scsiio.sense_len = src->scsi.sense_len; 1643 dest->io_hdr.status = src->hdr.status; 1644} 1645 1646static void 1647ctl_copy_sense_data_back(union ctl_io *src, union ctl_ha_msg *dest) 1648{ 1649 1650 memcpy(&dest->scsi.sense_data, &src->scsiio.sense_data, 1651 src->scsiio.sense_len); 1652 dest->scsi.scsi_status = src->scsiio.scsi_status; 1653 dest->scsi.sense_len = src->scsiio.sense_len; 1654 dest->hdr.status = src->io_hdr.status; 1655} 1656 1657void 1658ctl_est_ua(struct ctl_lun *lun, uint32_t initidx, ctl_ua_type ua) 1659{ 1660 struct ctl_softc *softc = lun->ctl_softc; 1661 ctl_ua_type *pu; 1662 1663 if (initidx < softc->init_min || initidx >= softc->init_max) 1664 return; 1665 mtx_assert(&lun->lun_lock, MA_OWNED); 1666 pu = lun->pending_ua[initidx / CTL_MAX_INIT_PER_PORT]; 1667 if (pu == NULL) 1668 return; 1669 pu[initidx % CTL_MAX_INIT_PER_PORT] |= ua; 1670} 1671 1672void 1673ctl_est_ua_port(struct ctl_lun *lun, int port, uint32_t except, ctl_ua_type ua) 1674{ 1675 int i; 1676 1677 mtx_assert(&lun->lun_lock, MA_OWNED); 1678 if (lun->pending_ua[port] == NULL) 1679 return; 1680 for (i = 0; i < CTL_MAX_INIT_PER_PORT; i++) { 1681 if (port * CTL_MAX_INIT_PER_PORT + i == except) 1682 continue; 1683 lun->pending_ua[port][i] |= ua; 1684 } 1685} 1686 1687void 1688ctl_est_ua_all(struct ctl_lun *lun, uint32_t except, ctl_ua_type ua) 1689{ 1690 struct ctl_softc *softc = lun->ctl_softc; 1691 int i; 1692 1693 mtx_assert(&lun->lun_lock, MA_OWNED); 1694 for (i = softc->port_min; i < softc->port_max; i++) 1695 ctl_est_ua_port(lun, i, except, ua); 1696} 1697 1698void 1699ctl_clr_ua(struct ctl_lun *lun, uint32_t initidx, ctl_ua_type ua) 1700{ 1701 struct ctl_softc *softc = lun->ctl_softc; 1702 ctl_ua_type *pu; 1703 1704 if (initidx < softc->init_min || initidx >= softc->init_max) 1705 return; 1706 mtx_assert(&lun->lun_lock, MA_OWNED); 1707 pu = lun->pending_ua[initidx / CTL_MAX_INIT_PER_PORT]; 1708 if (pu == NULL) 1709 return; 1710 pu[initidx % CTL_MAX_INIT_PER_PORT] &= ~ua; 1711} 1712 1713void 1714ctl_clr_ua_all(struct ctl_lun *lun, uint32_t except, ctl_ua_type ua) 1715{ 1716 struct ctl_softc *softc = lun->ctl_softc; 1717 int i, j; 1718 1719 mtx_assert(&lun->lun_lock, MA_OWNED); 1720 for (i = softc->port_min; i < softc->port_max; i++) { 1721 if (lun->pending_ua[i] == NULL) 1722 continue; 1723 for (j = 0; j < CTL_MAX_INIT_PER_PORT; j++) { 1724 if (i * CTL_MAX_INIT_PER_PORT + j == except) 1725 continue; 1726 lun->pending_ua[i][j] &= ~ua; 1727 } 1728 } 1729} 1730 1731void 1732ctl_clr_ua_allluns(struct ctl_softc *ctl_softc, uint32_t initidx, 1733 ctl_ua_type ua_type) 1734{ 1735 struct ctl_lun *lun; 1736 1737 mtx_assert(&ctl_softc->ctl_lock, MA_OWNED); 1738 STAILQ_FOREACH(lun, &ctl_softc->lun_list, links) { 1739 mtx_lock(&lun->lun_lock); 1740 ctl_clr_ua(lun, initidx, ua_type); 1741 mtx_unlock(&lun->lun_lock); 1742 } 1743} 1744 1745static int 1746ctl_ha_role_sysctl(SYSCTL_HANDLER_ARGS) 1747{ 1748 struct ctl_softc *softc = (struct ctl_softc *)arg1; 1749 struct ctl_lun *lun; 1750 struct ctl_lun_req ireq; 1751 int error, value; 1752 1753 value = (softc->flags & CTL_FLAG_ACTIVE_SHELF) ? 0 : 1; 1754 error = sysctl_handle_int(oidp, &value, 0, req); 1755 if ((error != 0) || (req->newptr == NULL)) 1756 return (error); 1757 1758 mtx_lock(&softc->ctl_lock); 1759 if (value == 0) 1760 softc->flags |= CTL_FLAG_ACTIVE_SHELF; 1761 else 1762 softc->flags &= ~CTL_FLAG_ACTIVE_SHELF; 1763 STAILQ_FOREACH(lun, &softc->lun_list, links) { 1764 mtx_unlock(&softc->ctl_lock); 1765 bzero(&ireq, sizeof(ireq)); 1766 ireq.reqtype = CTL_LUNREQ_MODIFY; 1767 ireq.reqdata.modify.lun_id = lun->lun; 1768 lun->backend->ioctl(NULL, CTL_LUN_REQ, (caddr_t)&ireq, 0, 1769 curthread); 1770 if (ireq.status != CTL_LUN_OK) { 1771 printf("%s: CTL_LUNREQ_MODIFY returned %d '%s'\n", 1772 __func__, ireq.status, ireq.error_str); 1773 } 1774 mtx_lock(&softc->ctl_lock); 1775 } 1776 mtx_unlock(&softc->ctl_lock); 1777 return (0); 1778} 1779 1780static int 1781ctl_init(void) 1782{ 1783 struct ctl_softc *softc; 1784 void *other_pool; 1785 int i, error; 1786 1787 softc = control_softc = malloc(sizeof(*control_softc), M_DEVBUF, 1788 M_WAITOK | M_ZERO); 1789 1790 softc->dev = make_dev(&ctl_cdevsw, 0, UID_ROOT, GID_OPERATOR, 0600, 1791 "cam/ctl"); 1792 softc->dev->si_drv1 = softc; 1793 1794 sysctl_ctx_init(&softc->sysctl_ctx); 1795 softc->sysctl_tree = SYSCTL_ADD_NODE(&softc->sysctl_ctx, 1796 SYSCTL_STATIC_CHILDREN(_kern_cam), OID_AUTO, "ctl", 1797 CTLFLAG_RD, 0, "CAM Target Layer"); 1798 1799 if (softc->sysctl_tree == NULL) { 1800 printf("%s: unable to allocate sysctl tree\n", __func__); 1801 destroy_dev(softc->dev); 1802 free(control_softc, M_DEVBUF); 1803 control_softc = NULL; 1804 return (ENOMEM); 1805 } 1806 1807 mtx_init(&softc->ctl_lock, "CTL mutex", NULL, MTX_DEF); 1808 softc->io_zone = uma_zcreate("CTL IO", sizeof(union ctl_io), 1809 NULL, NULL, NULL, NULL, UMA_ALIGN_PTR, 0); 1810 softc->flags = 0; 1811 1812 SYSCTL_ADD_INT(&softc->sysctl_ctx, SYSCTL_CHILDREN(softc->sysctl_tree), 1813 OID_AUTO, "ha_mode", CTLFLAG_RDTUN, (int *)&softc->ha_mode, 0, 1814 "HA mode (0 - act/stby, 1 - serialize only, 2 - xfer)"); 1815 1816 /* 1817 * In Copan's HA scheme, the "master" and "slave" roles are 1818 * figured out through the slot the controller is in. Although it 1819 * is an active/active system, someone has to be in charge. 1820 */ 1821 SYSCTL_ADD_INT(&softc->sysctl_ctx, SYSCTL_CHILDREN(softc->sysctl_tree), 1822 OID_AUTO, "ha_id", CTLFLAG_RDTUN, &softc->ha_id, 0, 1823 "HA head ID (0 - no HA)"); 1824 if (softc->ha_id == 0 || softc->ha_id > NUM_TARGET_PORT_GROUPS) { 1825 softc->flags |= CTL_FLAG_ACTIVE_SHELF; 1826 softc->is_single = 1; 1827 softc->port_cnt = CTL_MAX_PORTS; 1828 softc->port_min = 0; 1829 } else { 1830 softc->port_cnt = CTL_MAX_PORTS / NUM_TARGET_PORT_GROUPS; 1831 softc->port_min = (softc->ha_id - 1) * softc->port_cnt; 1832 } 1833 softc->port_max = softc->port_min + softc->port_cnt; 1834 softc->init_min = softc->port_min * CTL_MAX_INIT_PER_PORT; 1835 softc->init_max = softc->port_max * CTL_MAX_INIT_PER_PORT; 1836 1837 SYSCTL_ADD_INT(&softc->sysctl_ctx, SYSCTL_CHILDREN(softc->sysctl_tree), 1838 OID_AUTO, "ha_link", CTLFLAG_RD, (int *)&softc->ha_link, 0, 1839 "HA link state (0 - offline, 1 - unknown, 2 - online)"); 1840 1841 STAILQ_INIT(&softc->lun_list); 1842 STAILQ_INIT(&softc->pending_lun_queue); 1843 STAILQ_INIT(&softc->fe_list); 1844 STAILQ_INIT(&softc->port_list); 1845 STAILQ_INIT(&softc->be_list); 1846 ctl_tpc_init(softc); 1847 1848 if (ctl_pool_create(softc, "othersc", CTL_POOL_ENTRIES_OTHER_SC, 1849 &other_pool) != 0) 1850 { 1851 printf("ctl: can't allocate %d entry other SC pool, " 1852 "exiting\n", CTL_POOL_ENTRIES_OTHER_SC); 1853 return (ENOMEM); 1854 } 1855 softc->othersc_pool = other_pool; 1856 1857 if (worker_threads <= 0) 1858 worker_threads = max(1, mp_ncpus / 4); 1859 if (worker_threads > CTL_MAX_THREADS) 1860 worker_threads = CTL_MAX_THREADS; 1861 1862 for (i = 0; i < worker_threads; i++) { 1863 struct ctl_thread *thr = &softc->threads[i]; 1864 1865 mtx_init(&thr->queue_lock, "CTL queue mutex", NULL, MTX_DEF); 1866 thr->ctl_softc = softc; 1867 STAILQ_INIT(&thr->incoming_queue); 1868 STAILQ_INIT(&thr->rtr_queue); 1869 STAILQ_INIT(&thr->done_queue); 1870 STAILQ_INIT(&thr->isc_queue); 1871 1872 error = kproc_kthread_add(ctl_work_thread, thr, 1873 &softc->ctl_proc, &thr->thread, 0, 0, "ctl", "work%d", i); 1874 if (error != 0) { 1875 printf("error creating CTL work thread!\n"); 1876 ctl_pool_free(other_pool); 1877 return (error); 1878 } 1879 } 1880 error = kproc_kthread_add(ctl_lun_thread, softc, 1881 &softc->ctl_proc, NULL, 0, 0, "ctl", "lun"); 1882 if (error != 0) { 1883 printf("error creating CTL lun thread!\n"); 1884 ctl_pool_free(other_pool); 1885 return (error); 1886 } 1887 error = kproc_kthread_add(ctl_thresh_thread, softc, 1888 &softc->ctl_proc, NULL, 0, 0, "ctl", "thresh"); 1889 if (error != 0) { 1890 printf("error creating CTL threshold thread!\n"); 1891 ctl_pool_free(other_pool); 1892 return (error); 1893 } 1894 1895 SYSCTL_ADD_PROC(&softc->sysctl_ctx,SYSCTL_CHILDREN(softc->sysctl_tree), 1896 OID_AUTO, "ha_role", CTLTYPE_INT | CTLFLAG_RWTUN, 1897 softc, 0, ctl_ha_role_sysctl, "I", "HA role for this head"); 1898 1899 if (softc->is_single == 0) { 1900 ctl_frontend_register(&ha_frontend); 1901 if (ctl_ha_msg_init(softc) != CTL_HA_STATUS_SUCCESS) { 1902 printf("ctl_init: ctl_ha_msg_init failed.\n"); 1903 softc->is_single = 1; 1904 } else 1905 if (ctl_ha_msg_register(CTL_HA_CHAN_CTL, ctl_isc_event_handler) 1906 != CTL_HA_STATUS_SUCCESS) { 1907 printf("ctl_init: ctl_ha_msg_register failed.\n"); 1908 softc->is_single = 1; 1909 } 1910 } 1911 return (0); 1912} 1913 1914void 1915ctl_shutdown(void) 1916{ 1917 struct ctl_softc *softc = control_softc; 1918 struct ctl_lun *lun, *next_lun; 1919 1920 if (softc->is_single == 0) { 1921 ctl_ha_msg_shutdown(softc); 1922 if (ctl_ha_msg_deregister(CTL_HA_CHAN_CTL) 1923 != CTL_HA_STATUS_SUCCESS) 1924 printf("%s: ctl_ha_msg_deregister failed.\n", __func__); 1925 if (ctl_ha_msg_destroy(softc) != CTL_HA_STATUS_SUCCESS) 1926 printf("%s: ctl_ha_msg_destroy failed.\n", __func__); 1927 ctl_frontend_deregister(&ha_frontend); 1928 } 1929 1930 mtx_lock(&softc->ctl_lock); 1931 1932 STAILQ_FOREACH_SAFE(lun, &softc->lun_list, links, next_lun) 1933 ctl_free_lun(lun); 1934 1935 mtx_unlock(&softc->ctl_lock); 1936 1937#if 0 1938 ctl_shutdown_thread(softc->work_thread); 1939 mtx_destroy(&softc->queue_lock); 1940#endif 1941 1942 ctl_tpc_shutdown(softc); 1943 uma_zdestroy(softc->io_zone); 1944 mtx_destroy(&softc->ctl_lock); 1945 1946 destroy_dev(softc->dev); 1947 1948 sysctl_ctx_free(&softc->sysctl_ctx); 1949 1950 free(control_softc, M_DEVBUF); 1951 control_softc = NULL; 1952} 1953 1954static int 1955ctl_module_event_handler(module_t mod, int what, void *arg) 1956{ 1957 1958 switch (what) { 1959 case MOD_LOAD: 1960 return (ctl_init()); 1961 case MOD_UNLOAD: 1962 return (EBUSY); 1963 default: 1964 return (EOPNOTSUPP); 1965 } 1966} 1967 1968/* 1969 * XXX KDM should we do some access checks here? Bump a reference count to 1970 * prevent a CTL module from being unloaded while someone has it open? 1971 */ 1972static int 1973ctl_open(struct cdev *dev, int flags, int fmt, struct thread *td) 1974{ 1975 return (0); 1976} 1977 1978static int 1979ctl_close(struct cdev *dev, int flags, int fmt, struct thread *td) 1980{ 1981 return (0); 1982} 1983 1984/* 1985 * Remove an initiator by port number and initiator ID. 1986 * Returns 0 for success, -1 for failure. 1987 */ 1988int 1989ctl_remove_initiator(struct ctl_port *port, int iid) 1990{ 1991 struct ctl_softc *softc = port->ctl_softc; 1992 1993 mtx_assert(&softc->ctl_lock, MA_NOTOWNED); 1994 1995 if (iid > CTL_MAX_INIT_PER_PORT) { 1996 printf("%s: initiator ID %u > maximun %u!\n", 1997 __func__, iid, CTL_MAX_INIT_PER_PORT); 1998 return (-1); 1999 } 2000 2001 mtx_lock(&softc->ctl_lock); 2002 port->wwpn_iid[iid].in_use--; 2003 port->wwpn_iid[iid].last_use = time_uptime; 2004 mtx_unlock(&softc->ctl_lock); 2005 ctl_isc_announce_iid(port, iid); 2006 2007 return (0); 2008} 2009 2010/* 2011 * Add an initiator to the initiator map. 2012 * Returns iid for success, < 0 for failure. 2013 */ 2014int 2015ctl_add_initiator(struct ctl_port *port, int iid, uint64_t wwpn, char *name) 2016{ 2017 struct ctl_softc *softc = port->ctl_softc; 2018 time_t best_time; 2019 int i, best; 2020 2021 mtx_assert(&softc->ctl_lock, MA_NOTOWNED); 2022 2023 if (iid >= CTL_MAX_INIT_PER_PORT) { 2024 printf("%s: WWPN %#jx initiator ID %u > maximum %u!\n", 2025 __func__, wwpn, iid, CTL_MAX_INIT_PER_PORT); 2026 free(name, M_CTL); 2027 return (-1); 2028 } 2029 2030 mtx_lock(&softc->ctl_lock); 2031 2032 if (iid < 0 && (wwpn != 0 || name != NULL)) { 2033 for (i = 0; i < CTL_MAX_INIT_PER_PORT; i++) { 2034 if (wwpn != 0 && wwpn == port->wwpn_iid[i].wwpn) { 2035 iid = i; 2036 break; 2037 } 2038 if (name != NULL && port->wwpn_iid[i].name != NULL && 2039 strcmp(name, port->wwpn_iid[i].name) == 0) { 2040 iid = i; 2041 break; 2042 } 2043 } 2044 } 2045 2046 if (iid < 0) { 2047 for (i = 0; i < CTL_MAX_INIT_PER_PORT; i++) { 2048 if (port->wwpn_iid[i].in_use == 0 && 2049 port->wwpn_iid[i].wwpn == 0 && 2050 port->wwpn_iid[i].name == NULL) { 2051 iid = i; 2052 break; 2053 } 2054 } 2055 } 2056 2057 if (iid < 0) { 2058 best = -1; 2059 best_time = INT32_MAX; 2060 for (i = 0; i < CTL_MAX_INIT_PER_PORT; i++) { 2061 if (port->wwpn_iid[i].in_use == 0) { 2062 if (port->wwpn_iid[i].last_use < best_time) { 2063 best = i; 2064 best_time = port->wwpn_iid[i].last_use; 2065 } 2066 } 2067 } 2068 iid = best; 2069 } 2070 2071 if (iid < 0) { 2072 mtx_unlock(&softc->ctl_lock); 2073 free(name, M_CTL); 2074 return (-2); 2075 } 2076 2077 if (port->wwpn_iid[iid].in_use > 0 && (wwpn != 0 || name != NULL)) { 2078 /* 2079 * This is not an error yet. 2080 */ 2081 if (wwpn != 0 && wwpn == port->wwpn_iid[iid].wwpn) { 2082#if 0 2083 printf("%s: port %d iid %u WWPN %#jx arrived" 2084 " again\n", __func__, port->targ_port, 2085 iid, (uintmax_t)wwpn); 2086#endif 2087 goto take; 2088 } 2089 if (name != NULL && port->wwpn_iid[iid].name != NULL && 2090 strcmp(name, port->wwpn_iid[iid].name) == 0) { 2091#if 0 2092 printf("%s: port %d iid %u name '%s' arrived" 2093 " again\n", __func__, port->targ_port, 2094 iid, name); 2095#endif 2096 goto take; 2097 } 2098 2099 /* 2100 * This is an error, but what do we do about it? The 2101 * driver is telling us we have a new WWPN for this 2102 * initiator ID, so we pretty much need to use it. 2103 */ 2104 printf("%s: port %d iid %u WWPN %#jx '%s' arrived," 2105 " but WWPN %#jx '%s' is still at that address\n", 2106 __func__, port->targ_port, iid, wwpn, name, 2107 (uintmax_t)port->wwpn_iid[iid].wwpn, 2108 port->wwpn_iid[iid].name); 2109 2110 /* 2111 * XXX KDM clear have_ca and ua_pending on each LUN for 2112 * this initiator. 2113 */ 2114 } 2115take: 2116 free(port->wwpn_iid[iid].name, M_CTL); 2117 port->wwpn_iid[iid].name = name; 2118 port->wwpn_iid[iid].wwpn = wwpn; 2119 port->wwpn_iid[iid].in_use++; 2120 mtx_unlock(&softc->ctl_lock); 2121 ctl_isc_announce_iid(port, iid); 2122 2123 return (iid); 2124} 2125 2126static int 2127ctl_create_iid(struct ctl_port *port, int iid, uint8_t *buf) 2128{ 2129 int len; 2130 2131 switch (port->port_type) { 2132 case CTL_PORT_FC: 2133 { 2134 struct scsi_transportid_fcp *id = 2135 (struct scsi_transportid_fcp *)buf; 2136 if (port->wwpn_iid[iid].wwpn == 0) 2137 return (0); 2138 memset(id, 0, sizeof(*id)); 2139 id->format_protocol = SCSI_PROTO_FC; 2140 scsi_u64to8b(port->wwpn_iid[iid].wwpn, id->n_port_name); 2141 return (sizeof(*id)); 2142 } 2143 case CTL_PORT_ISCSI: 2144 { 2145 struct scsi_transportid_iscsi_port *id = 2146 (struct scsi_transportid_iscsi_port *)buf; 2147 if (port->wwpn_iid[iid].name == NULL) 2148 return (0); 2149 memset(id, 0, 256); 2150 id->format_protocol = SCSI_TRN_ISCSI_FORMAT_PORT | 2151 SCSI_PROTO_ISCSI; 2152 len = strlcpy(id->iscsi_name, port->wwpn_iid[iid].name, 252) + 1; 2153 len = roundup2(min(len, 252), 4); 2154 scsi_ulto2b(len, id->additional_length); 2155 return (sizeof(*id) + len); 2156 } 2157 case CTL_PORT_SAS: 2158 { 2159 struct scsi_transportid_sas *id = 2160 (struct scsi_transportid_sas *)buf; 2161 if (port->wwpn_iid[iid].wwpn == 0) 2162 return (0); 2163 memset(id, 0, sizeof(*id)); 2164 id->format_protocol = SCSI_PROTO_SAS; 2165 scsi_u64to8b(port->wwpn_iid[iid].wwpn, id->sas_address); 2166 return (sizeof(*id)); 2167 } 2168 default: 2169 { 2170 struct scsi_transportid_spi *id = 2171 (struct scsi_transportid_spi *)buf; 2172 memset(id, 0, sizeof(*id)); 2173 id->format_protocol = SCSI_PROTO_SPI; 2174 scsi_ulto2b(iid, id->scsi_addr); 2175 scsi_ulto2b(port->targ_port, id->rel_trgt_port_id); 2176 return (sizeof(*id)); 2177 } 2178 } 2179} 2180 2181/* 2182 * Serialize a command that went down the "wrong" side, and so was sent to 2183 * this controller for execution. The logic is a little different than the 2184 * standard case in ctl_scsiio_precheck(). Errors in this case need to get 2185 * sent back to the other side, but in the success case, we execute the 2186 * command on this side (XFER mode) or tell the other side to execute it 2187 * (SER_ONLY mode). 2188 */ 2189static int 2190ctl_serialize_other_sc_cmd(struct ctl_scsiio *ctsio) 2191{ 2192 struct ctl_softc *softc = control_softc; 2193 union ctl_ha_msg msg_info; 2194 struct ctl_port *port; 2195 struct ctl_lun *lun; 2196 const struct ctl_cmd_entry *entry; 2197 int retval = 0; 2198 uint32_t targ_lun; 2199 2200 targ_lun = ctsio->io_hdr.nexus.targ_mapped_lun; 2201 mtx_lock(&softc->ctl_lock); 2202 2203 /* Make sure that we know about this port. */ 2204 port = ctl_io_port(&ctsio->io_hdr); 2205 if (port == NULL || (port->status & CTL_PORT_STATUS_ONLINE) == 0) { 2206 ctl_set_internal_failure(ctsio, /*sks_valid*/ 0, 2207 /*retry_count*/ 1); 2208 goto badjuju; 2209 } 2210 2211 /* Make sure that we know about this LUN. */ 2212 if ((targ_lun < CTL_MAX_LUNS) && 2213 ((lun = softc->ctl_luns[targ_lun]) != NULL)) { 2214 mtx_lock(&lun->lun_lock); 2215 mtx_unlock(&softc->ctl_lock); 2216 /* 2217 * If the LUN is invalid, pretend that it doesn't exist. 2218 * It will go away as soon as all pending I/O has been 2219 * completed. 2220 */ 2221 if (lun->flags & CTL_LUN_DISABLED) { 2222 mtx_unlock(&lun->lun_lock); 2223 lun = NULL; 2224 } 2225 } else { 2226 mtx_unlock(&softc->ctl_lock); 2227 lun = NULL; 2228 } 2229 if (lun == NULL) { 2230 /* 2231 * The other node would not send this request to us unless 2232 * received announce that we are primary node for this LUN. 2233 * If this LUN does not exist now, it is probably result of 2234 * a race, so respond to initiator in the most opaque way. 2235 */ 2236 ctl_set_busy(ctsio); 2237 goto badjuju; 2238 } 2239 2240 entry = ctl_get_cmd_entry(ctsio, NULL); 2241 if (ctl_scsiio_lun_check(lun, entry, ctsio) != 0) { 2242 mtx_unlock(&lun->lun_lock); 2243 goto badjuju; 2244 } 2245 2246 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr = lun; 2247 ctsio->io_hdr.ctl_private[CTL_PRIV_BACKEND_LUN].ptr = lun->be_lun; 2248 2249 /* 2250 * Every I/O goes into the OOA queue for a 2251 * particular LUN, and stays there until completion. 2252 */ 2253#ifdef CTL_TIME_IO 2254 if (TAILQ_EMPTY(&lun->ooa_queue)) 2255 lun->idle_time += getsbinuptime() - lun->last_busy; 2256#endif 2257 TAILQ_INSERT_TAIL(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 2258 2259 switch (ctl_check_ooa(lun, (union ctl_io *)ctsio, 2260 (union ctl_io *)TAILQ_PREV(&ctsio->io_hdr, ctl_ooaq, 2261 ooa_links))) { 2262 case CTL_ACTION_BLOCK: 2263 ctsio->io_hdr.flags |= CTL_FLAG_BLOCKED; 2264 TAILQ_INSERT_TAIL(&lun->blocked_queue, &ctsio->io_hdr, 2265 blocked_links); 2266 mtx_unlock(&lun->lun_lock); 2267 break; 2268 case CTL_ACTION_PASS: 2269 case CTL_ACTION_SKIP: 2270 if (softc->ha_mode == CTL_HA_MODE_XFER) { 2271 ctsio->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 2272 ctl_enqueue_rtr((union ctl_io *)ctsio); 2273 mtx_unlock(&lun->lun_lock); 2274 } else { 2275 ctsio->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 2276 mtx_unlock(&lun->lun_lock); 2277 2278 /* send msg back to other side */ 2279 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 2280 msg_info.hdr.serializing_sc = (union ctl_io *)ctsio; 2281 msg_info.hdr.msg_type = CTL_MSG_R2R; 2282 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 2283 sizeof(msg_info.hdr), M_WAITOK); 2284 } 2285 break; 2286 case CTL_ACTION_OVERLAP: 2287 TAILQ_REMOVE(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 2288 mtx_unlock(&lun->lun_lock); 2289 ctl_set_overlapped_cmd(ctsio); 2290 goto badjuju; 2291 case CTL_ACTION_OVERLAP_TAG: 2292 TAILQ_REMOVE(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 2293 mtx_unlock(&lun->lun_lock); 2294 ctl_set_overlapped_tag(ctsio, ctsio->tag_num); 2295 goto badjuju; 2296 case CTL_ACTION_ERROR: 2297 default: 2298 TAILQ_REMOVE(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 2299 mtx_unlock(&lun->lun_lock); 2300 2301 ctl_set_internal_failure(ctsio, /*sks_valid*/ 0, 2302 /*retry_count*/ 0); 2303badjuju: 2304 ctl_copy_sense_data_back((union ctl_io *)ctsio, &msg_info); 2305 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 2306 msg_info.hdr.serializing_sc = NULL; 2307 msg_info.hdr.msg_type = CTL_MSG_BAD_JUJU; 2308 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 2309 sizeof(msg_info.scsi), M_WAITOK); 2310 retval = 1; 2311 break; 2312 } 2313 return (retval); 2314} 2315 2316/* 2317 * Returns 0 for success, errno for failure. 2318 */ 2319static void 2320ctl_ioctl_fill_ooa(struct ctl_lun *lun, uint32_t *cur_fill_num, 2321 struct ctl_ooa *ooa_hdr, struct ctl_ooa_entry *kern_entries) 2322{ 2323 union ctl_io *io; 2324 2325 mtx_lock(&lun->lun_lock); 2326 for (io = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); (io != NULL); 2327 (*cur_fill_num)++, io = (union ctl_io *)TAILQ_NEXT(&io->io_hdr, 2328 ooa_links)) { 2329 struct ctl_ooa_entry *entry; 2330 2331 /* 2332 * If we've got more than we can fit, just count the 2333 * remaining entries. 2334 */ 2335 if (*cur_fill_num >= ooa_hdr->alloc_num) 2336 continue; 2337 2338 entry = &kern_entries[*cur_fill_num]; 2339 2340 entry->tag_num = io->scsiio.tag_num; 2341 entry->lun_num = lun->lun; 2342#ifdef CTL_TIME_IO 2343 entry->start_bt = io->io_hdr.start_bt; 2344#endif 2345 bcopy(io->scsiio.cdb, entry->cdb, io->scsiio.cdb_len); 2346 entry->cdb_len = io->scsiio.cdb_len; 2347 if (io->io_hdr.flags & CTL_FLAG_BLOCKED) 2348 entry->cmd_flags |= CTL_OOACMD_FLAG_BLOCKED; 2349 2350 if (io->io_hdr.flags & CTL_FLAG_DMA_INPROG) 2351 entry->cmd_flags |= CTL_OOACMD_FLAG_DMA; 2352 2353 if (io->io_hdr.flags & CTL_FLAG_ABORT) 2354 entry->cmd_flags |= CTL_OOACMD_FLAG_ABORT; 2355 2356 if (io->io_hdr.flags & CTL_FLAG_IS_WAS_ON_RTR) 2357 entry->cmd_flags |= CTL_OOACMD_FLAG_RTR; 2358 2359 if (io->io_hdr.flags & CTL_FLAG_DMA_QUEUED) 2360 entry->cmd_flags |= CTL_OOACMD_FLAG_DMA_QUEUED; 2361 } 2362 mtx_unlock(&lun->lun_lock); 2363} 2364 2365static void * 2366ctl_copyin_alloc(void *user_addr, int len, char *error_str, 2367 size_t error_str_len) 2368{ 2369 void *kptr; 2370 2371 kptr = malloc(len, M_CTL, M_WAITOK | M_ZERO); 2372 2373 if (copyin(user_addr, kptr, len) != 0) { 2374 snprintf(error_str, error_str_len, "Error copying %d bytes " 2375 "from user address %p to kernel address %p", len, 2376 user_addr, kptr); 2377 free(kptr, M_CTL); 2378 return (NULL); 2379 } 2380 2381 return (kptr); 2382} 2383 2384static void 2385ctl_free_args(int num_args, struct ctl_be_arg *args) 2386{ 2387 int i; 2388 2389 if (args == NULL) 2390 return; 2391 2392 for (i = 0; i < num_args; i++) { 2393 free(args[i].kname, M_CTL); 2394 free(args[i].kvalue, M_CTL); 2395 } 2396 2397 free(args, M_CTL); 2398} 2399 2400static struct ctl_be_arg * 2401ctl_copyin_args(int num_args, struct ctl_be_arg *uargs, 2402 char *error_str, size_t error_str_len) 2403{ 2404 struct ctl_be_arg *args; 2405 int i; 2406 2407 args = ctl_copyin_alloc(uargs, num_args * sizeof(*args), 2408 error_str, error_str_len); 2409 2410 if (args == NULL) 2411 goto bailout; 2412 2413 for (i = 0; i < num_args; i++) { 2414 args[i].kname = NULL; 2415 args[i].kvalue = NULL; 2416 } 2417 2418 for (i = 0; i < num_args; i++) { 2419 uint8_t *tmpptr; 2420 2421 args[i].kname = ctl_copyin_alloc(args[i].name, 2422 args[i].namelen, error_str, error_str_len); 2423 if (args[i].kname == NULL) 2424 goto bailout; 2425 2426 if (args[i].kname[args[i].namelen - 1] != '\0') { 2427 snprintf(error_str, error_str_len, "Argument %d " 2428 "name is not NUL-terminated", i); 2429 goto bailout; 2430 } 2431 2432 if (args[i].flags & CTL_BEARG_RD) { 2433 tmpptr = ctl_copyin_alloc(args[i].value, 2434 args[i].vallen, error_str, error_str_len); 2435 if (tmpptr == NULL) 2436 goto bailout; 2437 if ((args[i].flags & CTL_BEARG_ASCII) 2438 && (tmpptr[args[i].vallen - 1] != '\0')) { 2439 snprintf(error_str, error_str_len, "Argument " 2440 "%d value is not NUL-terminated", i); 2441 goto bailout; 2442 } 2443 args[i].kvalue = tmpptr; 2444 } else { 2445 args[i].kvalue = malloc(args[i].vallen, 2446 M_CTL, M_WAITOK | M_ZERO); 2447 } 2448 } 2449 2450 return (args); 2451bailout: 2452 2453 ctl_free_args(num_args, args); 2454 2455 return (NULL); 2456} 2457 2458static void 2459ctl_copyout_args(int num_args, struct ctl_be_arg *args) 2460{ 2461 int i; 2462 2463 for (i = 0; i < num_args; i++) { 2464 if (args[i].flags & CTL_BEARG_WR) 2465 copyout(args[i].kvalue, args[i].value, args[i].vallen); 2466 } 2467} 2468 2469/* 2470 * Escape characters that are illegal or not recommended in XML. 2471 */ 2472int 2473ctl_sbuf_printf_esc(struct sbuf *sb, char *str, int size) 2474{ 2475 char *end = str + size; 2476 int retval; 2477 2478 retval = 0; 2479 2480 for (; *str && str < end; str++) { 2481 switch (*str) { 2482 case '&': 2483 retval = sbuf_printf(sb, "&"); 2484 break; 2485 case '>': 2486 retval = sbuf_printf(sb, ">"); 2487 break; 2488 case '<': 2489 retval = sbuf_printf(sb, "<"); 2490 break; 2491 default: 2492 retval = sbuf_putc(sb, *str); 2493 break; 2494 } 2495 2496 if (retval != 0) 2497 break; 2498 2499 } 2500 2501 return (retval); 2502} 2503 2504static void 2505ctl_id_sbuf(struct ctl_devid *id, struct sbuf *sb) 2506{ 2507 struct scsi_vpd_id_descriptor *desc; 2508 int i; 2509 2510 if (id == NULL || id->len < 4) 2511 return; 2512 desc = (struct scsi_vpd_id_descriptor *)id->data; 2513 switch (desc->id_type & SVPD_ID_TYPE_MASK) { 2514 case SVPD_ID_TYPE_T10: 2515 sbuf_printf(sb, "t10."); 2516 break; 2517 case SVPD_ID_TYPE_EUI64: 2518 sbuf_printf(sb, "eui."); 2519 break; 2520 case SVPD_ID_TYPE_NAA: 2521 sbuf_printf(sb, "naa."); 2522 break; 2523 case SVPD_ID_TYPE_SCSI_NAME: 2524 break; 2525 } 2526 switch (desc->proto_codeset & SVPD_ID_CODESET_MASK) { 2527 case SVPD_ID_CODESET_BINARY: 2528 for (i = 0; i < desc->length; i++) 2529 sbuf_printf(sb, "%02x", desc->identifier[i]); 2530 break; 2531 case SVPD_ID_CODESET_ASCII: 2532 sbuf_printf(sb, "%.*s", (int)desc->length, 2533 (char *)desc->identifier); 2534 break; 2535 case SVPD_ID_CODESET_UTF8: 2536 sbuf_printf(sb, "%s", (char *)desc->identifier); 2537 break; 2538 } 2539} 2540 2541static int 2542ctl_ioctl(struct cdev *dev, u_long cmd, caddr_t addr, int flag, 2543 struct thread *td) 2544{ 2545 struct ctl_softc *softc = dev->si_drv1; 2546 struct ctl_lun *lun; 2547 int retval; 2548 2549 retval = 0; 2550 2551 switch (cmd) { 2552 case CTL_IO: 2553 retval = ctl_ioctl_io(dev, cmd, addr, flag, td); 2554 break; 2555 case CTL_ENABLE_PORT: 2556 case CTL_DISABLE_PORT: 2557 case CTL_SET_PORT_WWNS: { 2558 struct ctl_port *port; 2559 struct ctl_port_entry *entry; 2560 2561 entry = (struct ctl_port_entry *)addr; 2562 2563 mtx_lock(&softc->ctl_lock); 2564 STAILQ_FOREACH(port, &softc->port_list, links) { 2565 int action, done; 2566 2567 if (port->targ_port < softc->port_min || 2568 port->targ_port >= softc->port_max) 2569 continue; 2570 2571 action = 0; 2572 done = 0; 2573 if ((entry->port_type == CTL_PORT_NONE) 2574 && (entry->targ_port == port->targ_port)) { 2575 /* 2576 * If the user only wants to enable or 2577 * disable or set WWNs on a specific port, 2578 * do the operation and we're done. 2579 */ 2580 action = 1; 2581 done = 1; 2582 } else if (entry->port_type & port->port_type) { 2583 /* 2584 * Compare the user's type mask with the 2585 * particular frontend type to see if we 2586 * have a match. 2587 */ 2588 action = 1; 2589 done = 0; 2590 2591 /* 2592 * Make sure the user isn't trying to set 2593 * WWNs on multiple ports at the same time. 2594 */ 2595 if (cmd == CTL_SET_PORT_WWNS) { 2596 printf("%s: Can't set WWNs on " 2597 "multiple ports\n", __func__); 2598 retval = EINVAL; 2599 break; 2600 } 2601 } 2602 if (action == 0) 2603 continue; 2604 2605 /* 2606 * XXX KDM we have to drop the lock here, because 2607 * the online/offline operations can potentially 2608 * block. We need to reference count the frontends 2609 * so they can't go away, 2610 */ 2611 if (cmd == CTL_ENABLE_PORT) { 2612 mtx_unlock(&softc->ctl_lock); 2613 ctl_port_online(port); 2614 mtx_lock(&softc->ctl_lock); 2615 } else if (cmd == CTL_DISABLE_PORT) { 2616 mtx_unlock(&softc->ctl_lock); 2617 ctl_port_offline(port); 2618 mtx_lock(&softc->ctl_lock); 2619 } else if (cmd == CTL_SET_PORT_WWNS) { 2620 ctl_port_set_wwns(port, 2621 (entry->flags & CTL_PORT_WWNN_VALID) ? 2622 1 : 0, entry->wwnn, 2623 (entry->flags & CTL_PORT_WWPN_VALID) ? 2624 1 : 0, entry->wwpn); 2625 } 2626 if (done != 0) 2627 break; 2628 } 2629 mtx_unlock(&softc->ctl_lock); 2630 break; 2631 } 2632 case CTL_GET_OOA: { 2633 struct ctl_ooa *ooa_hdr; 2634 struct ctl_ooa_entry *entries; 2635 uint32_t cur_fill_num; 2636 2637 ooa_hdr = (struct ctl_ooa *)addr; 2638 2639 if ((ooa_hdr->alloc_len == 0) 2640 || (ooa_hdr->alloc_num == 0)) { 2641 printf("%s: CTL_GET_OOA: alloc len %u and alloc num %u " 2642 "must be non-zero\n", __func__, 2643 ooa_hdr->alloc_len, ooa_hdr->alloc_num); 2644 retval = EINVAL; 2645 break; 2646 } 2647 2648 if (ooa_hdr->alloc_len != (ooa_hdr->alloc_num * 2649 sizeof(struct ctl_ooa_entry))) { 2650 printf("%s: CTL_GET_OOA: alloc len %u must be alloc " 2651 "num %d * sizeof(struct ctl_ooa_entry) %zd\n", 2652 __func__, ooa_hdr->alloc_len, 2653 ooa_hdr->alloc_num,sizeof(struct ctl_ooa_entry)); 2654 retval = EINVAL; 2655 break; 2656 } 2657 2658 entries = malloc(ooa_hdr->alloc_len, M_CTL, M_WAITOK | M_ZERO); 2659 if (entries == NULL) { 2660 printf("%s: could not allocate %d bytes for OOA " 2661 "dump\n", __func__, ooa_hdr->alloc_len); 2662 retval = ENOMEM; 2663 break; 2664 } 2665 2666 mtx_lock(&softc->ctl_lock); 2667 if (((ooa_hdr->flags & CTL_OOA_FLAG_ALL_LUNS) == 0) 2668 && ((ooa_hdr->lun_num >= CTL_MAX_LUNS) 2669 || (softc->ctl_luns[ooa_hdr->lun_num] == NULL))) { 2670 mtx_unlock(&softc->ctl_lock); 2671 free(entries, M_CTL); 2672 printf("%s: CTL_GET_OOA: invalid LUN %ju\n", 2673 __func__, (uintmax_t)ooa_hdr->lun_num); 2674 retval = EINVAL; 2675 break; 2676 } 2677 2678 cur_fill_num = 0; 2679 2680 if (ooa_hdr->flags & CTL_OOA_FLAG_ALL_LUNS) { 2681 STAILQ_FOREACH(lun, &softc->lun_list, links) { 2682 ctl_ioctl_fill_ooa(lun, &cur_fill_num, 2683 ooa_hdr, entries); 2684 } 2685 } else { 2686 lun = softc->ctl_luns[ooa_hdr->lun_num]; 2687 ctl_ioctl_fill_ooa(lun, &cur_fill_num, ooa_hdr, 2688 entries); 2689 } 2690 mtx_unlock(&softc->ctl_lock); 2691 2692 ooa_hdr->fill_num = min(cur_fill_num, ooa_hdr->alloc_num); 2693 ooa_hdr->fill_len = ooa_hdr->fill_num * 2694 sizeof(struct ctl_ooa_entry); 2695 retval = copyout(entries, ooa_hdr->entries, ooa_hdr->fill_len); 2696 if (retval != 0) { 2697 printf("%s: error copying out %d bytes for OOA dump\n", 2698 __func__, ooa_hdr->fill_len); 2699 } 2700 2701 getbinuptime(&ooa_hdr->cur_bt); 2702 2703 if (cur_fill_num > ooa_hdr->alloc_num) { 2704 ooa_hdr->dropped_num = cur_fill_num -ooa_hdr->alloc_num; 2705 ooa_hdr->status = CTL_OOA_NEED_MORE_SPACE; 2706 } else { 2707 ooa_hdr->dropped_num = 0; 2708 ooa_hdr->status = CTL_OOA_OK; 2709 } 2710 2711 free(entries, M_CTL); 2712 break; 2713 } 2714 case CTL_DELAY_IO: { 2715 struct ctl_io_delay_info *delay_info; 2716 2717 delay_info = (struct ctl_io_delay_info *)addr; 2718 2719#ifdef CTL_IO_DELAY 2720 mtx_lock(&softc->ctl_lock); 2721 2722 if ((delay_info->lun_id >= CTL_MAX_LUNS) 2723 || (softc->ctl_luns[delay_info->lun_id] == NULL)) { 2724 delay_info->status = CTL_DELAY_STATUS_INVALID_LUN; 2725 } else { 2726 lun = softc->ctl_luns[delay_info->lun_id]; 2727 mtx_lock(&lun->lun_lock); 2728 2729 delay_info->status = CTL_DELAY_STATUS_OK; 2730 2731 switch (delay_info->delay_type) { 2732 case CTL_DELAY_TYPE_CONT: 2733 break; 2734 case CTL_DELAY_TYPE_ONESHOT: 2735 break; 2736 default: 2737 delay_info->status = 2738 CTL_DELAY_STATUS_INVALID_TYPE; 2739 break; 2740 } 2741 2742 switch (delay_info->delay_loc) { 2743 case CTL_DELAY_LOC_DATAMOVE: 2744 lun->delay_info.datamove_type = 2745 delay_info->delay_type; 2746 lun->delay_info.datamove_delay = 2747 delay_info->delay_secs; 2748 break; 2749 case CTL_DELAY_LOC_DONE: 2750 lun->delay_info.done_type = 2751 delay_info->delay_type; 2752 lun->delay_info.done_delay = 2753 delay_info->delay_secs; 2754 break; 2755 default: 2756 delay_info->status = 2757 CTL_DELAY_STATUS_INVALID_LOC; 2758 break; 2759 } 2760 mtx_unlock(&lun->lun_lock); 2761 } 2762 2763 mtx_unlock(&softc->ctl_lock); 2764#else 2765 delay_info->status = CTL_DELAY_STATUS_NOT_IMPLEMENTED; 2766#endif /* CTL_IO_DELAY */ 2767 break; 2768 } 2769 case CTL_GETSTATS: { 2770 struct ctl_stats *stats; 2771 int i; 2772 2773 stats = (struct ctl_stats *)addr; 2774 2775 if ((sizeof(struct ctl_lun_io_stats) * softc->num_luns) > 2776 stats->alloc_len) { 2777 stats->status = CTL_SS_NEED_MORE_SPACE; 2778 stats->num_luns = softc->num_luns; 2779 break; 2780 } 2781 /* 2782 * XXX KDM no locking here. If the LUN list changes, 2783 * things can blow up. 2784 */ 2785 i = 0; 2786 STAILQ_FOREACH(lun, &softc->lun_list, links) { 2787 retval = copyout(&lun->stats, &stats->lun_stats[i++], 2788 sizeof(lun->stats)); 2789 if (retval != 0) 2790 break; 2791 } 2792 stats->num_luns = softc->num_luns; 2793 stats->fill_len = sizeof(struct ctl_lun_io_stats) * 2794 softc->num_luns; 2795 stats->status = CTL_SS_OK; 2796#ifdef CTL_TIME_IO 2797 stats->flags = CTL_STATS_FLAG_TIME_VALID; 2798#else 2799 stats->flags = CTL_STATS_FLAG_NONE; 2800#endif 2801 getnanouptime(&stats->timestamp); 2802 break; 2803 } 2804 case CTL_ERROR_INJECT: { 2805 struct ctl_error_desc *err_desc, *new_err_desc; 2806 2807 err_desc = (struct ctl_error_desc *)addr; 2808 2809 new_err_desc = malloc(sizeof(*new_err_desc), M_CTL, 2810 M_WAITOK | M_ZERO); 2811 bcopy(err_desc, new_err_desc, sizeof(*new_err_desc)); 2812 2813 mtx_lock(&softc->ctl_lock); 2814 lun = softc->ctl_luns[err_desc->lun_id]; 2815 if (lun == NULL) { 2816 mtx_unlock(&softc->ctl_lock); 2817 free(new_err_desc, M_CTL); 2818 printf("%s: CTL_ERROR_INJECT: invalid LUN %ju\n", 2819 __func__, (uintmax_t)err_desc->lun_id); 2820 retval = EINVAL; 2821 break; 2822 } 2823 mtx_lock(&lun->lun_lock); 2824 mtx_unlock(&softc->ctl_lock); 2825 2826 /* 2827 * We could do some checking here to verify the validity 2828 * of the request, but given the complexity of error 2829 * injection requests, the checking logic would be fairly 2830 * complex. 2831 * 2832 * For now, if the request is invalid, it just won't get 2833 * executed and might get deleted. 2834 */ 2835 STAILQ_INSERT_TAIL(&lun->error_list, new_err_desc, links); 2836 2837 /* 2838 * XXX KDM check to make sure the serial number is unique, 2839 * in case we somehow manage to wrap. That shouldn't 2840 * happen for a very long time, but it's the right thing to 2841 * do. 2842 */ 2843 new_err_desc->serial = lun->error_serial; 2844 err_desc->serial = lun->error_serial; 2845 lun->error_serial++; 2846 2847 mtx_unlock(&lun->lun_lock); 2848 break; 2849 } 2850 case CTL_ERROR_INJECT_DELETE: { 2851 struct ctl_error_desc *delete_desc, *desc, *desc2; 2852 int delete_done; 2853 2854 delete_desc = (struct ctl_error_desc *)addr; 2855 delete_done = 0; 2856 2857 mtx_lock(&softc->ctl_lock); 2858 lun = softc->ctl_luns[delete_desc->lun_id]; 2859 if (lun == NULL) { 2860 mtx_unlock(&softc->ctl_lock); 2861 printf("%s: CTL_ERROR_INJECT_DELETE: invalid LUN %ju\n", 2862 __func__, (uintmax_t)delete_desc->lun_id); 2863 retval = EINVAL; 2864 break; 2865 } 2866 mtx_lock(&lun->lun_lock); 2867 mtx_unlock(&softc->ctl_lock); 2868 STAILQ_FOREACH_SAFE(desc, &lun->error_list, links, desc2) { 2869 if (desc->serial != delete_desc->serial) 2870 continue; 2871 2872 STAILQ_REMOVE(&lun->error_list, desc, ctl_error_desc, 2873 links); 2874 free(desc, M_CTL); 2875 delete_done = 1; 2876 } 2877 mtx_unlock(&lun->lun_lock); 2878 if (delete_done == 0) { 2879 printf("%s: CTL_ERROR_INJECT_DELETE: can't find " 2880 "error serial %ju on LUN %u\n", __func__, 2881 delete_desc->serial, delete_desc->lun_id); 2882 retval = EINVAL; 2883 break; 2884 } 2885 break; 2886 } 2887 case CTL_DUMP_STRUCTS: { 2888 int i, j, k; 2889 struct ctl_port *port; 2890 struct ctl_frontend *fe; 2891 2892 mtx_lock(&softc->ctl_lock); 2893 printf("CTL Persistent Reservation information start:\n"); 2894 for (i = 0; i < CTL_MAX_LUNS; i++) { 2895 lun = softc->ctl_luns[i]; 2896 2897 if ((lun == NULL) 2898 || ((lun->flags & CTL_LUN_DISABLED) != 0)) 2899 continue; 2900 2901 for (j = 0; j < CTL_MAX_PORTS; j++) { 2902 if (lun->pr_keys[j] == NULL) 2903 continue; 2904 for (k = 0; k < CTL_MAX_INIT_PER_PORT; k++){ 2905 if (lun->pr_keys[j][k] == 0) 2906 continue; 2907 printf(" LUN %d port %d iid %d key " 2908 "%#jx\n", i, j, k, 2909 (uintmax_t)lun->pr_keys[j][k]); 2910 } 2911 } 2912 } 2913 printf("CTL Persistent Reservation information end\n"); 2914 printf("CTL Ports:\n"); 2915 STAILQ_FOREACH(port, &softc->port_list, links) { 2916 printf(" Port %d '%s' Frontend '%s' Type %u pp %d vp %d WWNN " 2917 "%#jx WWPN %#jx\n", port->targ_port, port->port_name, 2918 port->frontend->name, port->port_type, 2919 port->physical_port, port->virtual_port, 2920 (uintmax_t)port->wwnn, (uintmax_t)port->wwpn); 2921 for (j = 0; j < CTL_MAX_INIT_PER_PORT; j++) { 2922 if (port->wwpn_iid[j].in_use == 0 && 2923 port->wwpn_iid[j].wwpn == 0 && 2924 port->wwpn_iid[j].name == NULL) 2925 continue; 2926 2927 printf(" iid %u use %d WWPN %#jx '%s'\n", 2928 j, port->wwpn_iid[j].in_use, 2929 (uintmax_t)port->wwpn_iid[j].wwpn, 2930 port->wwpn_iid[j].name); 2931 } 2932 } 2933 printf("CTL Port information end\n"); 2934 mtx_unlock(&softc->ctl_lock); 2935 /* 2936 * XXX KDM calling this without a lock. We'd likely want 2937 * to drop the lock before calling the frontend's dump 2938 * routine anyway. 2939 */ 2940 printf("CTL Frontends:\n"); 2941 STAILQ_FOREACH(fe, &softc->fe_list, links) { 2942 printf(" Frontend '%s'\n", fe->name); 2943 if (fe->fe_dump != NULL) 2944 fe->fe_dump(); 2945 } 2946 printf("CTL Frontend information end\n"); 2947 break; 2948 } 2949 case CTL_LUN_REQ: { 2950 struct ctl_lun_req *lun_req; 2951 struct ctl_backend_driver *backend; 2952 2953 lun_req = (struct ctl_lun_req *)addr; 2954 2955 backend = ctl_backend_find(lun_req->backend); 2956 if (backend == NULL) { 2957 lun_req->status = CTL_LUN_ERROR; 2958 snprintf(lun_req->error_str, 2959 sizeof(lun_req->error_str), 2960 "Backend \"%s\" not found.", 2961 lun_req->backend); 2962 break; 2963 } 2964 if (lun_req->num_be_args > 0) { 2965 lun_req->kern_be_args = ctl_copyin_args( 2966 lun_req->num_be_args, 2967 lun_req->be_args, 2968 lun_req->error_str, 2969 sizeof(lun_req->error_str)); 2970 if (lun_req->kern_be_args == NULL) { 2971 lun_req->status = CTL_LUN_ERROR; 2972 break; 2973 } 2974 } 2975 2976 retval = backend->ioctl(dev, cmd, addr, flag, td); 2977 2978 if (lun_req->num_be_args > 0) { 2979 ctl_copyout_args(lun_req->num_be_args, 2980 lun_req->kern_be_args); 2981 ctl_free_args(lun_req->num_be_args, 2982 lun_req->kern_be_args); 2983 } 2984 break; 2985 } 2986 case CTL_LUN_LIST: { 2987 struct sbuf *sb; 2988 struct ctl_lun_list *list; 2989 struct ctl_option *opt; 2990 2991 list = (struct ctl_lun_list *)addr; 2992 2993 /* 2994 * Allocate a fixed length sbuf here, based on the length 2995 * of the user's buffer. We could allocate an auto-extending 2996 * buffer, and then tell the user how much larger our 2997 * amount of data is than his buffer, but that presents 2998 * some problems: 2999 * 3000 * 1. The sbuf(9) routines use a blocking malloc, and so 3001 * we can't hold a lock while calling them with an 3002 * auto-extending buffer. 3003 * 3004 * 2. There is not currently a LUN reference counting 3005 * mechanism, outside of outstanding transactions on 3006 * the LUN's OOA queue. So a LUN could go away on us 3007 * while we're getting the LUN number, backend-specific 3008 * information, etc. Thus, given the way things 3009 * currently work, we need to hold the CTL lock while 3010 * grabbing LUN information. 3011 * 3012 * So, from the user's standpoint, the best thing to do is 3013 * allocate what he thinks is a reasonable buffer length, 3014 * and then if he gets a CTL_LUN_LIST_NEED_MORE_SPACE error, 3015 * double the buffer length and try again. (And repeat 3016 * that until he succeeds.) 3017 */ 3018 sb = sbuf_new(NULL, NULL, list->alloc_len, SBUF_FIXEDLEN); 3019 if (sb == NULL) { 3020 list->status = CTL_LUN_LIST_ERROR; 3021 snprintf(list->error_str, sizeof(list->error_str), 3022 "Unable to allocate %d bytes for LUN list", 3023 list->alloc_len); 3024 break; 3025 } 3026 3027 sbuf_printf(sb, "<ctllunlist>\n"); 3028 3029 mtx_lock(&softc->ctl_lock); 3030 STAILQ_FOREACH(lun, &softc->lun_list, links) { 3031 mtx_lock(&lun->lun_lock); 3032 retval = sbuf_printf(sb, "<lun id=\"%ju\">\n", 3033 (uintmax_t)lun->lun); 3034 3035 /* 3036 * Bail out as soon as we see that we've overfilled 3037 * the buffer. 3038 */ 3039 if (retval != 0) 3040 break; 3041 3042 retval = sbuf_printf(sb, "\t<backend_type>%s" 3043 "</backend_type>\n", 3044 (lun->backend == NULL) ? "none" : 3045 lun->backend->name); 3046 3047 if (retval != 0) 3048 break; 3049 3050 retval = sbuf_printf(sb, "\t<lun_type>%d</lun_type>\n", 3051 lun->be_lun->lun_type); 3052 3053 if (retval != 0) 3054 break; 3055 3056 if (lun->backend == NULL) { 3057 retval = sbuf_printf(sb, "</lun>\n"); 3058 if (retval != 0) 3059 break; 3060 continue; 3061 } 3062 3063 retval = sbuf_printf(sb, "\t<size>%ju</size>\n", 3064 (lun->be_lun->maxlba > 0) ? 3065 lun->be_lun->maxlba + 1 : 0); 3066 3067 if (retval != 0) 3068 break; 3069 3070 retval = sbuf_printf(sb, "\t<blocksize>%u</blocksize>\n", 3071 lun->be_lun->blocksize); 3072 3073 if (retval != 0) 3074 break; 3075 3076 retval = sbuf_printf(sb, "\t<serial_number>"); 3077 3078 if (retval != 0) 3079 break; 3080 3081 retval = ctl_sbuf_printf_esc(sb, 3082 lun->be_lun->serial_num, 3083 sizeof(lun->be_lun->serial_num)); 3084 3085 if (retval != 0) 3086 break; 3087 3088 retval = sbuf_printf(sb, "</serial_number>\n"); 3089 3090 if (retval != 0) 3091 break; 3092 3093 retval = sbuf_printf(sb, "\t<device_id>"); 3094 3095 if (retval != 0) 3096 break; 3097 3098 retval = ctl_sbuf_printf_esc(sb, 3099 lun->be_lun->device_id, 3100 sizeof(lun->be_lun->device_id)); 3101 3102 if (retval != 0) 3103 break; 3104 3105 retval = sbuf_printf(sb, "</device_id>\n"); 3106 3107 if (retval != 0) 3108 break; 3109 3110 if (lun->backend->lun_info != NULL) { 3111 retval = lun->backend->lun_info(lun->be_lun->be_lun, sb); 3112 if (retval != 0) 3113 break; 3114 } 3115 STAILQ_FOREACH(opt, &lun->be_lun->options, links) { 3116 retval = sbuf_printf(sb, "\t<%s>%s</%s>\n", 3117 opt->name, opt->value, opt->name); 3118 if (retval != 0) 3119 break; 3120 } 3121 3122 retval = sbuf_printf(sb, "</lun>\n"); 3123 3124 if (retval != 0) 3125 break; 3126 mtx_unlock(&lun->lun_lock); 3127 } 3128 if (lun != NULL) 3129 mtx_unlock(&lun->lun_lock); 3130 mtx_unlock(&softc->ctl_lock); 3131 3132 if ((retval != 0) 3133 || ((retval = sbuf_printf(sb, "</ctllunlist>\n")) != 0)) { 3134 retval = 0; 3135 sbuf_delete(sb); 3136 list->status = CTL_LUN_LIST_NEED_MORE_SPACE; 3137 snprintf(list->error_str, sizeof(list->error_str), 3138 "Out of space, %d bytes is too small", 3139 list->alloc_len); 3140 break; 3141 } 3142 3143 sbuf_finish(sb); 3144 3145 retval = copyout(sbuf_data(sb), list->lun_xml, 3146 sbuf_len(sb) + 1); 3147 3148 list->fill_len = sbuf_len(sb) + 1; 3149 list->status = CTL_LUN_LIST_OK; 3150 sbuf_delete(sb); 3151 break; 3152 } 3153 case CTL_ISCSI: { 3154 struct ctl_iscsi *ci; 3155 struct ctl_frontend *fe; 3156 3157 ci = (struct ctl_iscsi *)addr; 3158 3159 fe = ctl_frontend_find("iscsi"); 3160 if (fe == NULL) { 3161 ci->status = CTL_ISCSI_ERROR; 3162 snprintf(ci->error_str, sizeof(ci->error_str), 3163 "Frontend \"iscsi\" not found."); 3164 break; 3165 } 3166 3167 retval = fe->ioctl(dev, cmd, addr, flag, td); 3168 break; 3169 } 3170 case CTL_PORT_REQ: { 3171 struct ctl_req *req; 3172 struct ctl_frontend *fe; 3173 3174 req = (struct ctl_req *)addr; 3175 3176 fe = ctl_frontend_find(req->driver); 3177 if (fe == NULL) { 3178 req->status = CTL_LUN_ERROR; 3179 snprintf(req->error_str, sizeof(req->error_str), 3180 "Frontend \"%s\" not found.", req->driver); 3181 break; 3182 } 3183 if (req->num_args > 0) { 3184 req->kern_args = ctl_copyin_args(req->num_args, 3185 req->args, req->error_str, sizeof(req->error_str)); 3186 if (req->kern_args == NULL) { 3187 req->status = CTL_LUN_ERROR; 3188 break; 3189 } 3190 } 3191 3192 if (fe->ioctl) 3193 retval = fe->ioctl(dev, cmd, addr, flag, td); 3194 else 3195 retval = ENODEV; 3196 3197 if (req->num_args > 0) { 3198 ctl_copyout_args(req->num_args, req->kern_args); 3199 ctl_free_args(req->num_args, req->kern_args); 3200 } 3201 break; 3202 } 3203 case CTL_PORT_LIST: { 3204 struct sbuf *sb; 3205 struct ctl_port *port; 3206 struct ctl_lun_list *list; 3207 struct ctl_option *opt; 3208 int j; 3209 uint32_t plun; 3210 3211 list = (struct ctl_lun_list *)addr; 3212 3213 sb = sbuf_new(NULL, NULL, list->alloc_len, SBUF_FIXEDLEN); 3214 if (sb == NULL) { 3215 list->status = CTL_LUN_LIST_ERROR; 3216 snprintf(list->error_str, sizeof(list->error_str), 3217 "Unable to allocate %d bytes for LUN list", 3218 list->alloc_len); 3219 break; 3220 } 3221 3222 sbuf_printf(sb, "<ctlportlist>\n"); 3223 3224 mtx_lock(&softc->ctl_lock); 3225 STAILQ_FOREACH(port, &softc->port_list, links) { 3226 retval = sbuf_printf(sb, "<targ_port id=\"%ju\">\n", 3227 (uintmax_t)port->targ_port); 3228 3229 /* 3230 * Bail out as soon as we see that we've overfilled 3231 * the buffer. 3232 */ 3233 if (retval != 0) 3234 break; 3235 3236 retval = sbuf_printf(sb, "\t<frontend_type>%s" 3237 "</frontend_type>\n", port->frontend->name); 3238 if (retval != 0) 3239 break; 3240 3241 retval = sbuf_printf(sb, "\t<port_type>%d</port_type>\n", 3242 port->port_type); 3243 if (retval != 0) 3244 break; 3245 3246 retval = sbuf_printf(sb, "\t<online>%s</online>\n", 3247 (port->status & CTL_PORT_STATUS_ONLINE) ? "YES" : "NO"); 3248 if (retval != 0) 3249 break; 3250 3251 retval = sbuf_printf(sb, "\t<port_name>%s</port_name>\n", 3252 port->port_name); 3253 if (retval != 0) 3254 break; 3255 3256 retval = sbuf_printf(sb, "\t<physical_port>%d</physical_port>\n", 3257 port->physical_port); 3258 if (retval != 0) 3259 break; 3260 3261 retval = sbuf_printf(sb, "\t<virtual_port>%d</virtual_port>\n", 3262 port->virtual_port); 3263 if (retval != 0) 3264 break; 3265 3266 if (port->target_devid != NULL) { 3267 sbuf_printf(sb, "\t<target>"); 3268 ctl_id_sbuf(port->target_devid, sb); 3269 sbuf_printf(sb, "</target>\n"); 3270 } 3271 3272 if (port->port_devid != NULL) { 3273 sbuf_printf(sb, "\t<port>"); 3274 ctl_id_sbuf(port->port_devid, sb); 3275 sbuf_printf(sb, "</port>\n"); 3276 } 3277 3278 if (port->port_info != NULL) { 3279 retval = port->port_info(port->onoff_arg, sb); 3280 if (retval != 0) 3281 break; 3282 } 3283 STAILQ_FOREACH(opt, &port->options, links) { 3284 retval = sbuf_printf(sb, "\t<%s>%s</%s>\n", 3285 opt->name, opt->value, opt->name); 3286 if (retval != 0) 3287 break; 3288 } 3289 3290 if (port->lun_map != NULL) { 3291 sbuf_printf(sb, "\t<lun_map>on</lun_map>\n"); 3292 for (j = 0; j < CTL_MAX_LUNS; j++) { 3293 plun = ctl_lun_map_from_port(port, j); 3294 if (plun >= CTL_MAX_LUNS) 3295 continue; 3296 sbuf_printf(sb, 3297 "\t<lun id=\"%u\">%u</lun>\n", 3298 j, plun); 3299 } 3300 } 3301 3302 for (j = 0; j < CTL_MAX_INIT_PER_PORT; j++) { 3303 if (port->wwpn_iid[j].in_use == 0 || 3304 (port->wwpn_iid[j].wwpn == 0 && 3305 port->wwpn_iid[j].name == NULL)) 3306 continue; 3307 3308 if (port->wwpn_iid[j].name != NULL) 3309 retval = sbuf_printf(sb, 3310 "\t<initiator id=\"%u\">%s</initiator>\n", 3311 j, port->wwpn_iid[j].name); 3312 else 3313 retval = sbuf_printf(sb, 3314 "\t<initiator id=\"%u\">naa.%08jx</initiator>\n", 3315 j, port->wwpn_iid[j].wwpn); 3316 if (retval != 0) 3317 break; 3318 } 3319 if (retval != 0) 3320 break; 3321 3322 retval = sbuf_printf(sb, "</targ_port>\n"); 3323 if (retval != 0) 3324 break; 3325 } 3326 mtx_unlock(&softc->ctl_lock); 3327 3328 if ((retval != 0) 3329 || ((retval = sbuf_printf(sb, "</ctlportlist>\n")) != 0)) { 3330 retval = 0; 3331 sbuf_delete(sb); 3332 list->status = CTL_LUN_LIST_NEED_MORE_SPACE; 3333 snprintf(list->error_str, sizeof(list->error_str), 3334 "Out of space, %d bytes is too small", 3335 list->alloc_len); 3336 break; 3337 } 3338 3339 sbuf_finish(sb); 3340 3341 retval = copyout(sbuf_data(sb), list->lun_xml, 3342 sbuf_len(sb) + 1); 3343 3344 list->fill_len = sbuf_len(sb) + 1; 3345 list->status = CTL_LUN_LIST_OK; 3346 sbuf_delete(sb); 3347 break; 3348 } 3349 case CTL_LUN_MAP: { 3350 struct ctl_lun_map *lm = (struct ctl_lun_map *)addr; 3351 struct ctl_port *port; 3352 3353 mtx_lock(&softc->ctl_lock); 3354 if (lm->port < softc->port_min || 3355 lm->port >= softc->port_max || 3356 (port = softc->ctl_ports[lm->port]) == NULL) { 3357 mtx_unlock(&softc->ctl_lock); 3358 return (ENXIO); 3359 } 3360 if (port->status & CTL_PORT_STATUS_ONLINE) { 3361 STAILQ_FOREACH(lun, &softc->lun_list, links) { 3362 if (ctl_lun_map_to_port(port, lun->lun) >= 3363 CTL_MAX_LUNS) 3364 continue; 3365 mtx_lock(&lun->lun_lock); 3366 ctl_est_ua_port(lun, lm->port, -1, 3367 CTL_UA_LUN_CHANGE); 3368 mtx_unlock(&lun->lun_lock); 3369 } 3370 } 3371 mtx_unlock(&softc->ctl_lock); // XXX: port_enable sleeps 3372 if (lm->plun < CTL_MAX_LUNS) { 3373 if (lm->lun == UINT32_MAX) 3374 retval = ctl_lun_map_unset(port, lm->plun); 3375 else if (lm->lun < CTL_MAX_LUNS && 3376 softc->ctl_luns[lm->lun] != NULL) 3377 retval = ctl_lun_map_set(port, lm->plun, lm->lun); 3378 else 3379 return (ENXIO); 3380 } else if (lm->plun == UINT32_MAX) { 3381 if (lm->lun == UINT32_MAX) 3382 retval = ctl_lun_map_deinit(port); 3383 else 3384 retval = ctl_lun_map_init(port); 3385 } else 3386 return (ENXIO); 3387 if (port->status & CTL_PORT_STATUS_ONLINE) 3388 ctl_isc_announce_port(port); 3389 break; 3390 } 3391 default: { 3392 /* XXX KDM should we fix this? */ 3393#if 0 3394 struct ctl_backend_driver *backend; 3395 unsigned int type; 3396 int found; 3397 3398 found = 0; 3399 3400 /* 3401 * We encode the backend type as the ioctl type for backend 3402 * ioctls. So parse it out here, and then search for a 3403 * backend of this type. 3404 */ 3405 type = _IOC_TYPE(cmd); 3406 3407 STAILQ_FOREACH(backend, &softc->be_list, links) { 3408 if (backend->type == type) { 3409 found = 1; 3410 break; 3411 } 3412 } 3413 if (found == 0) { 3414 printf("ctl: unknown ioctl command %#lx or backend " 3415 "%d\n", cmd, type); 3416 retval = EINVAL; 3417 break; 3418 } 3419 retval = backend->ioctl(dev, cmd, addr, flag, td); 3420#endif 3421 retval = ENOTTY; 3422 break; 3423 } 3424 } 3425 return (retval); 3426} 3427 3428uint32_t 3429ctl_get_initindex(struct ctl_nexus *nexus) 3430{ 3431 return (nexus->initid + (nexus->targ_port * CTL_MAX_INIT_PER_PORT)); 3432} 3433 3434int 3435ctl_lun_map_init(struct ctl_port *port) 3436{ 3437 struct ctl_softc *softc = port->ctl_softc; 3438 struct ctl_lun *lun; 3439 uint32_t i; 3440 3441 if (port->lun_map == NULL) 3442 port->lun_map = malloc(sizeof(uint32_t) * CTL_MAX_LUNS, 3443 M_CTL, M_NOWAIT); 3444 if (port->lun_map == NULL) 3445 return (ENOMEM); 3446 for (i = 0; i < CTL_MAX_LUNS; i++) 3447 port->lun_map[i] = UINT32_MAX; 3448 if (port->status & CTL_PORT_STATUS_ONLINE) { 3449 if (port->lun_disable != NULL) { 3450 STAILQ_FOREACH(lun, &softc->lun_list, links) 3451 port->lun_disable(port->targ_lun_arg, lun->lun); 3452 } 3453 ctl_isc_announce_port(port); 3454 } 3455 return (0); 3456} 3457 3458int 3459ctl_lun_map_deinit(struct ctl_port *port) 3460{ 3461 struct ctl_softc *softc = port->ctl_softc; 3462 struct ctl_lun *lun; 3463 3464 if (port->lun_map == NULL) 3465 return (0); 3466 free(port->lun_map, M_CTL); 3467 port->lun_map = NULL; 3468 if (port->status & CTL_PORT_STATUS_ONLINE) { 3469 if (port->lun_enable != NULL) { 3470 STAILQ_FOREACH(lun, &softc->lun_list, links) 3471 port->lun_enable(port->targ_lun_arg, lun->lun); 3472 } 3473 ctl_isc_announce_port(port); 3474 } 3475 return (0); 3476} 3477 3478int 3479ctl_lun_map_set(struct ctl_port *port, uint32_t plun, uint32_t glun) 3480{ 3481 int status; 3482 uint32_t old; 3483 3484 if (port->lun_map == NULL) { 3485 status = ctl_lun_map_init(port); 3486 if (status != 0) 3487 return (status); 3488 } 3489 old = port->lun_map[plun]; 3490 port->lun_map[plun] = glun; 3491 if ((port->status & CTL_PORT_STATUS_ONLINE) && old >= CTL_MAX_LUNS) { 3492 if (port->lun_enable != NULL) 3493 port->lun_enable(port->targ_lun_arg, plun); 3494 ctl_isc_announce_port(port); 3495 } 3496 return (0); 3497} 3498 3499int 3500ctl_lun_map_unset(struct ctl_port *port, uint32_t plun) 3501{ 3502 uint32_t old; 3503 3504 if (port->lun_map == NULL) 3505 return (0); 3506 old = port->lun_map[plun]; 3507 port->lun_map[plun] = UINT32_MAX; 3508 if ((port->status & CTL_PORT_STATUS_ONLINE) && old < CTL_MAX_LUNS) { 3509 if (port->lun_disable != NULL) 3510 port->lun_disable(port->targ_lun_arg, plun); 3511 ctl_isc_announce_port(port); 3512 } 3513 return (0); 3514} 3515 3516uint32_t 3517ctl_lun_map_from_port(struct ctl_port *port, uint32_t lun_id) 3518{ 3519 3520 if (port == NULL) 3521 return (UINT32_MAX); 3522 if (port->lun_map == NULL || lun_id >= CTL_MAX_LUNS) 3523 return (lun_id); 3524 return (port->lun_map[lun_id]); 3525} 3526 3527uint32_t 3528ctl_lun_map_to_port(struct ctl_port *port, uint32_t lun_id) 3529{ 3530 uint32_t i; 3531 3532 if (port == NULL) 3533 return (UINT32_MAX); 3534 if (port->lun_map == NULL) 3535 return (lun_id); 3536 for (i = 0; i < CTL_MAX_LUNS; i++) { 3537 if (port->lun_map[i] == lun_id) 3538 return (i); 3539 } 3540 return (UINT32_MAX); 3541} 3542 3543uint32_t 3544ctl_decode_lun(uint64_t encoded) 3545{ 3546 uint8_t lun[8]; 3547 uint32_t result = 0xffffffff; 3548 3549 be64enc(lun, encoded); 3550 switch (lun[0] & RPL_LUNDATA_ATYP_MASK) { 3551 case RPL_LUNDATA_ATYP_PERIPH: 3552 if ((lun[0] & 0x3f) == 0 && lun[2] == 0 && lun[3] == 0 && 3553 lun[4] == 0 && lun[5] == 0 && lun[6] == 0 && lun[7] == 0) 3554 result = lun[1]; 3555 break; 3556 case RPL_LUNDATA_ATYP_FLAT: 3557 if (lun[2] == 0 && lun[3] == 0 && lun[4] == 0 && lun[5] == 0 && 3558 lun[6] == 0 && lun[7] == 0) 3559 result = ((lun[0] & 0x3f) << 8) + lun[1]; 3560 break; 3561 case RPL_LUNDATA_ATYP_EXTLUN: 3562 switch (lun[0] & RPL_LUNDATA_EXT_EAM_MASK) { 3563 case 0x02: 3564 switch (lun[0] & RPL_LUNDATA_EXT_LEN_MASK) { 3565 case 0x00: 3566 result = lun[1]; 3567 break; 3568 case 0x10: 3569 result = (lun[1] << 16) + (lun[2] << 8) + 3570 lun[3]; 3571 break; 3572 case 0x20: 3573 if (lun[1] == 0 && lun[6] == 0 && lun[7] == 0) 3574 result = (lun[2] << 24) + 3575 (lun[3] << 16) + (lun[4] << 8) + 3576 lun[5]; 3577 break; 3578 } 3579 break; 3580 case RPL_LUNDATA_EXT_EAM_NOT_SPEC: 3581 result = 0xffffffff; 3582 break; 3583 } 3584 break; 3585 } 3586 return (result); 3587} 3588 3589uint64_t 3590ctl_encode_lun(uint32_t decoded) 3591{ 3592 uint64_t l = decoded; 3593 3594 if (l <= 0xff) 3595 return (((uint64_t)RPL_LUNDATA_ATYP_PERIPH << 56) | (l << 48)); 3596 if (l <= 0x3fff) 3597 return (((uint64_t)RPL_LUNDATA_ATYP_FLAT << 56) | (l << 48)); 3598 if (l <= 0xffffff) 3599 return (((uint64_t)(RPL_LUNDATA_ATYP_EXTLUN | 0x12) << 56) | 3600 (l << 32)); 3601 return ((((uint64_t)RPL_LUNDATA_ATYP_EXTLUN | 0x22) << 56) | (l << 16)); 3602} 3603 3604static struct ctl_port * 3605ctl_io_port(struct ctl_io_hdr *io_hdr) 3606{ 3607 3608 return (control_softc->ctl_ports[io_hdr->nexus.targ_port]); 3609} 3610 3611int 3612ctl_ffz(uint32_t *mask, uint32_t first, uint32_t last) 3613{ 3614 int i; 3615 3616 for (i = first; i < last; i++) { 3617 if ((mask[i / 32] & (1 << (i % 32))) == 0) 3618 return (i); 3619 } 3620 return (-1); 3621} 3622 3623int 3624ctl_set_mask(uint32_t *mask, uint32_t bit) 3625{ 3626 uint32_t chunk, piece; 3627 3628 chunk = bit >> 5; 3629 piece = bit % (sizeof(uint32_t) * 8); 3630 3631 if ((mask[chunk] & (1 << piece)) != 0) 3632 return (-1); 3633 else 3634 mask[chunk] |= (1 << piece); 3635 3636 return (0); 3637} 3638 3639int 3640ctl_clear_mask(uint32_t *mask, uint32_t bit) 3641{ 3642 uint32_t chunk, piece; 3643 3644 chunk = bit >> 5; 3645 piece = bit % (sizeof(uint32_t) * 8); 3646 3647 if ((mask[chunk] & (1 << piece)) == 0) 3648 return (-1); 3649 else 3650 mask[chunk] &= ~(1 << piece); 3651 3652 return (0); 3653} 3654 3655int 3656ctl_is_set(uint32_t *mask, uint32_t bit) 3657{ 3658 uint32_t chunk, piece; 3659 3660 chunk = bit >> 5; 3661 piece = bit % (sizeof(uint32_t) * 8); 3662 3663 if ((mask[chunk] & (1 << piece)) == 0) 3664 return (0); 3665 else 3666 return (1); 3667} 3668 3669static uint64_t 3670ctl_get_prkey(struct ctl_lun *lun, uint32_t residx) 3671{ 3672 uint64_t *t; 3673 3674 t = lun->pr_keys[residx/CTL_MAX_INIT_PER_PORT]; 3675 if (t == NULL) 3676 return (0); 3677 return (t[residx % CTL_MAX_INIT_PER_PORT]); 3678} 3679 3680static void 3681ctl_clr_prkey(struct ctl_lun *lun, uint32_t residx) 3682{ 3683 uint64_t *t; 3684 3685 t = lun->pr_keys[residx/CTL_MAX_INIT_PER_PORT]; 3686 if (t == NULL) 3687 return; 3688 t[residx % CTL_MAX_INIT_PER_PORT] = 0; 3689} 3690 3691static void 3692ctl_alloc_prkey(struct ctl_lun *lun, uint32_t residx) 3693{ 3694 uint64_t *p; 3695 u_int i; 3696 3697 i = residx/CTL_MAX_INIT_PER_PORT; 3698 if (lun->pr_keys[i] != NULL) 3699 return; 3700 mtx_unlock(&lun->lun_lock); 3701 p = malloc(sizeof(uint64_t) * CTL_MAX_INIT_PER_PORT, M_CTL, 3702 M_WAITOK | M_ZERO); 3703 mtx_lock(&lun->lun_lock); 3704 if (lun->pr_keys[i] == NULL) 3705 lun->pr_keys[i] = p; 3706 else 3707 free(p, M_CTL); 3708} 3709 3710static void 3711ctl_set_prkey(struct ctl_lun *lun, uint32_t residx, uint64_t key) 3712{ 3713 uint64_t *t; 3714 3715 t = lun->pr_keys[residx/CTL_MAX_INIT_PER_PORT]; 3716 KASSERT(t != NULL, ("prkey %d is not allocated", residx)); 3717 t[residx % CTL_MAX_INIT_PER_PORT] = key; 3718} 3719 3720/* 3721 * ctl_softc, pool_name, total_ctl_io are passed in. 3722 * npool is passed out. 3723 */ 3724int 3725ctl_pool_create(struct ctl_softc *ctl_softc, const char *pool_name, 3726 uint32_t total_ctl_io, void **npool) 3727{ 3728#ifdef IO_POOLS 3729 struct ctl_io_pool *pool; 3730 3731 pool = (struct ctl_io_pool *)malloc(sizeof(*pool), M_CTL, 3732 M_NOWAIT | M_ZERO); 3733 if (pool == NULL) 3734 return (ENOMEM); 3735 3736 snprintf(pool->name, sizeof(pool->name), "CTL IO %s", pool_name); 3737 pool->ctl_softc = ctl_softc; 3738 pool->zone = uma_zsecond_create(pool->name, NULL, 3739 NULL, NULL, NULL, ctl_softc->io_zone); 3740 /* uma_prealloc(pool->zone, total_ctl_io); */ 3741 3742 *npool = pool; 3743#else 3744 *npool = ctl_softc->io_zone; 3745#endif 3746 return (0); 3747} 3748 3749void 3750ctl_pool_free(struct ctl_io_pool *pool) 3751{ 3752 3753 if (pool == NULL) 3754 return; 3755 3756#ifdef IO_POOLS 3757 uma_zdestroy(pool->zone); 3758 free(pool, M_CTL); 3759#endif 3760} 3761 3762union ctl_io * 3763ctl_alloc_io(void *pool_ref) 3764{ 3765 union ctl_io *io; 3766#ifdef IO_POOLS 3767 struct ctl_io_pool *pool = (struct ctl_io_pool *)pool_ref; 3768 3769 io = uma_zalloc(pool->zone, M_WAITOK); 3770#else 3771 io = uma_zalloc((uma_zone_t)pool_ref, M_WAITOK); 3772#endif 3773 if (io != NULL) 3774 io->io_hdr.pool = pool_ref; 3775 return (io); 3776} 3777 3778union ctl_io * 3779ctl_alloc_io_nowait(void *pool_ref) 3780{ 3781 union ctl_io *io; 3782#ifdef IO_POOLS 3783 struct ctl_io_pool *pool = (struct ctl_io_pool *)pool_ref; 3784 3785 io = uma_zalloc(pool->zone, M_NOWAIT); 3786#else 3787 io = uma_zalloc((uma_zone_t)pool_ref, M_NOWAIT); 3788#endif 3789 if (io != NULL) 3790 io->io_hdr.pool = pool_ref; 3791 return (io); 3792} 3793 3794void 3795ctl_free_io(union ctl_io *io) 3796{ 3797#ifdef IO_POOLS 3798 struct ctl_io_pool *pool; 3799#endif 3800 3801 if (io == NULL) 3802 return; 3803 3804#ifdef IO_POOLS 3805 pool = (struct ctl_io_pool *)io->io_hdr.pool; 3806 uma_zfree(pool->zone, io); 3807#else 3808 uma_zfree((uma_zone_t)io->io_hdr.pool, io); 3809#endif 3810} 3811 3812void 3813ctl_zero_io(union ctl_io *io) 3814{ 3815 void *pool_ref; 3816 3817 if (io == NULL) 3818 return; 3819 3820 /* 3821 * May need to preserve linked list pointers at some point too. 3822 */ 3823 pool_ref = io->io_hdr.pool; 3824 memset(io, 0, sizeof(*io)); 3825 io->io_hdr.pool = pool_ref; 3826} 3827 3828int 3829ctl_expand_number(const char *buf, uint64_t *num) 3830{ 3831 char *endptr; 3832 uint64_t number; 3833 unsigned shift; 3834 3835 number = strtoq(buf, &endptr, 0); 3836 3837 switch (tolower((unsigned char)*endptr)) { 3838 case 'e': 3839 shift = 60; 3840 break; 3841 case 'p': 3842 shift = 50; 3843 break; 3844 case 't': 3845 shift = 40; 3846 break; 3847 case 'g': 3848 shift = 30; 3849 break; 3850 case 'm': 3851 shift = 20; 3852 break; 3853 case 'k': 3854 shift = 10; 3855 break; 3856 case 'b': 3857 case '\0': /* No unit. */ 3858 *num = number; 3859 return (0); 3860 default: 3861 /* Unrecognized unit. */ 3862 return (-1); 3863 } 3864 3865 if ((number << shift) >> shift != number) { 3866 /* Overflow */ 3867 return (-1); 3868 } 3869 *num = number << shift; 3870 return (0); 3871} 3872 3873 3874/* 3875 * This routine could be used in the future to load default and/or saved 3876 * mode page parameters for a particuar lun. 3877 */ 3878static int 3879ctl_init_page_index(struct ctl_lun *lun) 3880{ 3881 int i, page_code; 3882 struct ctl_page_index *page_index; 3883 const char *value; 3884 uint64_t ival; 3885 3886 memcpy(&lun->mode_pages.index, page_index_template, 3887 sizeof(page_index_template)); 3888 3889 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 3890 3891 page_index = &lun->mode_pages.index[i]; 3892 if (lun->be_lun->lun_type == T_DIRECT && 3893 (page_index->page_flags & CTL_PAGE_FLAG_DIRECT) == 0) 3894 continue; 3895 if (lun->be_lun->lun_type == T_PROCESSOR && 3896 (page_index->page_flags & CTL_PAGE_FLAG_PROC) == 0) 3897 continue; 3898 if (lun->be_lun->lun_type == T_CDROM && 3899 (page_index->page_flags & CTL_PAGE_FLAG_CDROM) == 0) 3900 continue; 3901 3902 page_code = page_index->page_code & SMPH_PC_MASK; 3903 switch (page_code) { 3904 case SMS_RW_ERROR_RECOVERY_PAGE: { 3905 KASSERT(page_index->subpage == SMS_SUBPAGE_PAGE_0, 3906 ("subpage %#x for page %#x is incorrect!", 3907 page_index->subpage, page_code)); 3908 memcpy(&lun->mode_pages.rw_er_page[CTL_PAGE_CURRENT], 3909 &rw_er_page_default, 3910 sizeof(rw_er_page_default)); 3911 memcpy(&lun->mode_pages.rw_er_page[CTL_PAGE_CHANGEABLE], 3912 &rw_er_page_changeable, 3913 sizeof(rw_er_page_changeable)); 3914 memcpy(&lun->mode_pages.rw_er_page[CTL_PAGE_DEFAULT], 3915 &rw_er_page_default, 3916 sizeof(rw_er_page_default)); 3917 memcpy(&lun->mode_pages.rw_er_page[CTL_PAGE_SAVED], 3918 &rw_er_page_default, 3919 sizeof(rw_er_page_default)); 3920 page_index->page_data = 3921 (uint8_t *)lun->mode_pages.rw_er_page; 3922 break; 3923 } 3924 case SMS_FORMAT_DEVICE_PAGE: { 3925 struct scsi_format_page *format_page; 3926 3927 KASSERT(page_index->subpage == SMS_SUBPAGE_PAGE_0, 3928 ("subpage %#x for page %#x is incorrect!", 3929 page_index->subpage, page_code)); 3930 3931 /* 3932 * Sectors per track are set above. Bytes per 3933 * sector need to be set here on a per-LUN basis. 3934 */ 3935 memcpy(&lun->mode_pages.format_page[CTL_PAGE_CURRENT], 3936 &format_page_default, 3937 sizeof(format_page_default)); 3938 memcpy(&lun->mode_pages.format_page[ 3939 CTL_PAGE_CHANGEABLE], &format_page_changeable, 3940 sizeof(format_page_changeable)); 3941 memcpy(&lun->mode_pages.format_page[CTL_PAGE_DEFAULT], 3942 &format_page_default, 3943 sizeof(format_page_default)); 3944 memcpy(&lun->mode_pages.format_page[CTL_PAGE_SAVED], 3945 &format_page_default, 3946 sizeof(format_page_default)); 3947 3948 format_page = &lun->mode_pages.format_page[ 3949 CTL_PAGE_CURRENT]; 3950 scsi_ulto2b(lun->be_lun->blocksize, 3951 format_page->bytes_per_sector); 3952 3953 format_page = &lun->mode_pages.format_page[ 3954 CTL_PAGE_DEFAULT]; 3955 scsi_ulto2b(lun->be_lun->blocksize, 3956 format_page->bytes_per_sector); 3957 3958 format_page = &lun->mode_pages.format_page[ 3959 CTL_PAGE_SAVED]; 3960 scsi_ulto2b(lun->be_lun->blocksize, 3961 format_page->bytes_per_sector); 3962 3963 page_index->page_data = 3964 (uint8_t *)lun->mode_pages.format_page; 3965 break; 3966 } 3967 case SMS_RIGID_DISK_PAGE: { 3968 struct scsi_rigid_disk_page *rigid_disk_page; 3969 uint32_t sectors_per_cylinder; 3970 uint64_t cylinders; 3971#ifndef __XSCALE__ 3972 int shift; 3973#endif /* !__XSCALE__ */ 3974 3975 KASSERT(page_index->subpage == SMS_SUBPAGE_PAGE_0, 3976 ("subpage %#x for page %#x is incorrect!", 3977 page_index->subpage, page_code)); 3978 3979 /* 3980 * Rotation rate and sectors per track are set 3981 * above. We calculate the cylinders here based on 3982 * capacity. Due to the number of heads and 3983 * sectors per track we're using, smaller arrays 3984 * may turn out to have 0 cylinders. Linux and 3985 * FreeBSD don't pay attention to these mode pages 3986 * to figure out capacity, but Solaris does. It 3987 * seems to deal with 0 cylinders just fine, and 3988 * works out a fake geometry based on the capacity. 3989 */ 3990 memcpy(&lun->mode_pages.rigid_disk_page[ 3991 CTL_PAGE_DEFAULT], &rigid_disk_page_default, 3992 sizeof(rigid_disk_page_default)); 3993 memcpy(&lun->mode_pages.rigid_disk_page[ 3994 CTL_PAGE_CHANGEABLE],&rigid_disk_page_changeable, 3995 sizeof(rigid_disk_page_changeable)); 3996 3997 sectors_per_cylinder = CTL_DEFAULT_SECTORS_PER_TRACK * 3998 CTL_DEFAULT_HEADS; 3999 4000 /* 4001 * The divide method here will be more accurate, 4002 * probably, but results in floating point being 4003 * used in the kernel on i386 (__udivdi3()). On the 4004 * XScale, though, __udivdi3() is implemented in 4005 * software. 4006 * 4007 * The shift method for cylinder calculation is 4008 * accurate if sectors_per_cylinder is a power of 4009 * 2. Otherwise it might be slightly off -- you 4010 * might have a bit of a truncation problem. 4011 */ 4012#ifdef __XSCALE__ 4013 cylinders = (lun->be_lun->maxlba + 1) / 4014 sectors_per_cylinder; 4015#else 4016 for (shift = 31; shift > 0; shift--) { 4017 if (sectors_per_cylinder & (1 << shift)) 4018 break; 4019 } 4020 cylinders = (lun->be_lun->maxlba + 1) >> shift; 4021#endif 4022 4023 /* 4024 * We've basically got 3 bytes, or 24 bits for the 4025 * cylinder size in the mode page. If we're over, 4026 * just round down to 2^24. 4027 */ 4028 if (cylinders > 0xffffff) 4029 cylinders = 0xffffff; 4030 4031 rigid_disk_page = &lun->mode_pages.rigid_disk_page[ 4032 CTL_PAGE_DEFAULT]; 4033 scsi_ulto3b(cylinders, rigid_disk_page->cylinders); 4034 4035 if ((value = ctl_get_opt(&lun->be_lun->options, 4036 "rpm")) != NULL) { 4037 scsi_ulto2b(strtol(value, NULL, 0), 4038 rigid_disk_page->rotation_rate); 4039 } 4040 4041 memcpy(&lun->mode_pages.rigid_disk_page[CTL_PAGE_CURRENT], 4042 &lun->mode_pages.rigid_disk_page[CTL_PAGE_DEFAULT], 4043 sizeof(rigid_disk_page_default)); 4044 memcpy(&lun->mode_pages.rigid_disk_page[CTL_PAGE_SAVED], 4045 &lun->mode_pages.rigid_disk_page[CTL_PAGE_DEFAULT], 4046 sizeof(rigid_disk_page_default)); 4047 4048 page_index->page_data = 4049 (uint8_t *)lun->mode_pages.rigid_disk_page; 4050 break; 4051 } 4052 case SMS_CACHING_PAGE: { 4053 struct scsi_caching_page *caching_page; 4054 4055 KASSERT(page_index->subpage == SMS_SUBPAGE_PAGE_0, 4056 ("subpage %#x for page %#x is incorrect!", 4057 page_index->subpage, page_code)); 4058 memcpy(&lun->mode_pages.caching_page[CTL_PAGE_DEFAULT], 4059 &caching_page_default, 4060 sizeof(caching_page_default)); 4061 memcpy(&lun->mode_pages.caching_page[ 4062 CTL_PAGE_CHANGEABLE], &caching_page_changeable, 4063 sizeof(caching_page_changeable)); 4064 memcpy(&lun->mode_pages.caching_page[CTL_PAGE_SAVED], 4065 &caching_page_default, 4066 sizeof(caching_page_default)); 4067 caching_page = &lun->mode_pages.caching_page[ 4068 CTL_PAGE_SAVED]; 4069 value = ctl_get_opt(&lun->be_lun->options, "writecache"); 4070 if (value != NULL && strcmp(value, "off") == 0) 4071 caching_page->flags1 &= ~SCP_WCE; 4072 value = ctl_get_opt(&lun->be_lun->options, "readcache"); 4073 if (value != NULL && strcmp(value, "off") == 0) 4074 caching_page->flags1 |= SCP_RCD; 4075 memcpy(&lun->mode_pages.caching_page[CTL_PAGE_CURRENT], 4076 &lun->mode_pages.caching_page[CTL_PAGE_SAVED], 4077 sizeof(caching_page_default)); 4078 page_index->page_data = 4079 (uint8_t *)lun->mode_pages.caching_page; 4080 break; 4081 } 4082 case SMS_CONTROL_MODE_PAGE: { 4083 switch (page_index->subpage) { 4084 case SMS_SUBPAGE_PAGE_0: { 4085 struct scsi_control_page *control_page; 4086 4087 memcpy(&lun->mode_pages.control_page[ 4088 CTL_PAGE_DEFAULT], 4089 &control_page_default, 4090 sizeof(control_page_default)); 4091 memcpy(&lun->mode_pages.control_page[ 4092 CTL_PAGE_CHANGEABLE], 4093 &control_page_changeable, 4094 sizeof(control_page_changeable)); 4095 memcpy(&lun->mode_pages.control_page[ 4096 CTL_PAGE_SAVED], 4097 &control_page_default, 4098 sizeof(control_page_default)); 4099 control_page = &lun->mode_pages.control_page[ 4100 CTL_PAGE_SAVED]; 4101 value = ctl_get_opt(&lun->be_lun->options, 4102 "reordering"); 4103 if (value != NULL && 4104 strcmp(value, "unrestricted") == 0) { 4105 control_page->queue_flags &= 4106 ~SCP_QUEUE_ALG_MASK; 4107 control_page->queue_flags |= 4108 SCP_QUEUE_ALG_UNRESTRICTED; 4109 } 4110 memcpy(&lun->mode_pages.control_page[ 4111 CTL_PAGE_CURRENT], 4112 &lun->mode_pages.control_page[ 4113 CTL_PAGE_SAVED], 4114 sizeof(control_page_default)); 4115 page_index->page_data = 4116 (uint8_t *)lun->mode_pages.control_page; 4117 break; 4118 } 4119 case 0x01: 4120 memcpy(&lun->mode_pages.control_ext_page[ 4121 CTL_PAGE_DEFAULT], 4122 &control_ext_page_default, 4123 sizeof(control_ext_page_default)); 4124 memcpy(&lun->mode_pages.control_ext_page[ 4125 CTL_PAGE_CHANGEABLE], 4126 &control_ext_page_changeable, 4127 sizeof(control_ext_page_changeable)); 4128 memcpy(&lun->mode_pages.control_ext_page[ 4129 CTL_PAGE_SAVED], 4130 &control_ext_page_default, 4131 sizeof(control_ext_page_default)); 4132 memcpy(&lun->mode_pages.control_ext_page[ 4133 CTL_PAGE_CURRENT], 4134 &lun->mode_pages.control_ext_page[ 4135 CTL_PAGE_SAVED], 4136 sizeof(control_ext_page_default)); 4137 page_index->page_data = 4138 (uint8_t *)lun->mode_pages.control_ext_page; 4139 break; 4140 default: 4141 panic("subpage %#x for page %#x is incorrect!", 4142 page_index->subpage, page_code); 4143 } 4144 break; 4145 } 4146 case SMS_INFO_EXCEPTIONS_PAGE: { 4147 switch (page_index->subpage) { 4148 case SMS_SUBPAGE_PAGE_0: 4149 memcpy(&lun->mode_pages.ie_page[CTL_PAGE_CURRENT], 4150 &ie_page_default, 4151 sizeof(ie_page_default)); 4152 memcpy(&lun->mode_pages.ie_page[ 4153 CTL_PAGE_CHANGEABLE], &ie_page_changeable, 4154 sizeof(ie_page_changeable)); 4155 memcpy(&lun->mode_pages.ie_page[CTL_PAGE_DEFAULT], 4156 &ie_page_default, 4157 sizeof(ie_page_default)); 4158 memcpy(&lun->mode_pages.ie_page[CTL_PAGE_SAVED], 4159 &ie_page_default, 4160 sizeof(ie_page_default)); 4161 page_index->page_data = 4162 (uint8_t *)lun->mode_pages.ie_page; 4163 break; 4164 case 0x02: { 4165 struct ctl_logical_block_provisioning_page *page; 4166 4167 memcpy(&lun->mode_pages.lbp_page[CTL_PAGE_DEFAULT], 4168 &lbp_page_default, 4169 sizeof(lbp_page_default)); 4170 memcpy(&lun->mode_pages.lbp_page[ 4171 CTL_PAGE_CHANGEABLE], &lbp_page_changeable, 4172 sizeof(lbp_page_changeable)); 4173 memcpy(&lun->mode_pages.lbp_page[CTL_PAGE_SAVED], 4174 &lbp_page_default, 4175 sizeof(lbp_page_default)); 4176 page = &lun->mode_pages.lbp_page[CTL_PAGE_SAVED]; 4177 value = ctl_get_opt(&lun->be_lun->options, 4178 "avail-threshold"); 4179 if (value != NULL && 4180 ctl_expand_number(value, &ival) == 0) { 4181 page->descr[0].flags |= SLBPPD_ENABLED | 4182 SLBPPD_ARMING_DEC; 4183 if (lun->be_lun->blocksize) 4184 ival /= lun->be_lun->blocksize; 4185 else 4186 ival /= 512; 4187 scsi_ulto4b(ival >> CTL_LBP_EXPONENT, 4188 page->descr[0].count); 4189 } 4190 value = ctl_get_opt(&lun->be_lun->options, 4191 "used-threshold"); 4192 if (value != NULL && 4193 ctl_expand_number(value, &ival) == 0) { 4194 page->descr[1].flags |= SLBPPD_ENABLED | 4195 SLBPPD_ARMING_INC; 4196 if (lun->be_lun->blocksize) 4197 ival /= lun->be_lun->blocksize; 4198 else 4199 ival /= 512; 4200 scsi_ulto4b(ival >> CTL_LBP_EXPONENT, 4201 page->descr[1].count); 4202 } 4203 value = ctl_get_opt(&lun->be_lun->options, 4204 "pool-avail-threshold"); 4205 if (value != NULL && 4206 ctl_expand_number(value, &ival) == 0) { 4207 page->descr[2].flags |= SLBPPD_ENABLED | 4208 SLBPPD_ARMING_DEC; 4209 if (lun->be_lun->blocksize) 4210 ival /= lun->be_lun->blocksize; 4211 else 4212 ival /= 512; 4213 scsi_ulto4b(ival >> CTL_LBP_EXPONENT, 4214 page->descr[2].count); 4215 } 4216 value = ctl_get_opt(&lun->be_lun->options, 4217 "pool-used-threshold"); 4218 if (value != NULL && 4219 ctl_expand_number(value, &ival) == 0) { 4220 page->descr[3].flags |= SLBPPD_ENABLED | 4221 SLBPPD_ARMING_INC; 4222 if (lun->be_lun->blocksize) 4223 ival /= lun->be_lun->blocksize; 4224 else 4225 ival /= 512; 4226 scsi_ulto4b(ival >> CTL_LBP_EXPONENT, 4227 page->descr[3].count); 4228 } 4229 memcpy(&lun->mode_pages.lbp_page[CTL_PAGE_CURRENT], 4230 &lun->mode_pages.lbp_page[CTL_PAGE_SAVED], 4231 sizeof(lbp_page_default)); 4232 page_index->page_data = 4233 (uint8_t *)lun->mode_pages.lbp_page; 4234 break; 4235 } 4236 default: 4237 panic("subpage %#x for page %#x is incorrect!", 4238 page_index->subpage, page_code); 4239 } 4240 break; 4241 } 4242 case SMS_CDDVD_CAPS_PAGE:{ 4243 KASSERT(page_index->subpage == SMS_SUBPAGE_PAGE_0, 4244 ("subpage %#x for page %#x is incorrect!", 4245 page_index->subpage, page_code)); 4246 memcpy(&lun->mode_pages.cddvd_page[CTL_PAGE_DEFAULT], 4247 &cddvd_page_default, 4248 sizeof(cddvd_page_default)); 4249 memcpy(&lun->mode_pages.cddvd_page[ 4250 CTL_PAGE_CHANGEABLE], &cddvd_page_changeable, 4251 sizeof(cddvd_page_changeable)); 4252 memcpy(&lun->mode_pages.cddvd_page[CTL_PAGE_SAVED], 4253 &cddvd_page_default, 4254 sizeof(cddvd_page_default)); 4255 memcpy(&lun->mode_pages.cddvd_page[CTL_PAGE_CURRENT], 4256 &lun->mode_pages.cddvd_page[CTL_PAGE_SAVED], 4257 sizeof(cddvd_page_default)); 4258 page_index->page_data = 4259 (uint8_t *)lun->mode_pages.cddvd_page; 4260 break; 4261 } 4262 case SMS_VENDOR_SPECIFIC_PAGE:{ 4263 switch (page_index->subpage) { 4264 case DBGCNF_SUBPAGE_CODE: { 4265 memcpy(&lun->mode_pages.debugconf_subpage[ 4266 CTL_PAGE_CURRENT], 4267 &debugconf_page_default, 4268 sizeof(debugconf_page_default)); 4269 memcpy(&lun->mode_pages.debugconf_subpage[ 4270 CTL_PAGE_CHANGEABLE], 4271 &debugconf_page_changeable, 4272 sizeof(debugconf_page_changeable)); 4273 memcpy(&lun->mode_pages.debugconf_subpage[ 4274 CTL_PAGE_DEFAULT], 4275 &debugconf_page_default, 4276 sizeof(debugconf_page_default)); 4277 memcpy(&lun->mode_pages.debugconf_subpage[ 4278 CTL_PAGE_SAVED], 4279 &debugconf_page_default, 4280 sizeof(debugconf_page_default)); 4281 page_index->page_data = 4282 (uint8_t *)lun->mode_pages.debugconf_subpage; 4283 break; 4284 } 4285 default: 4286 panic("subpage %#x for page %#x is incorrect!", 4287 page_index->subpage, page_code); 4288 } 4289 break; 4290 } 4291 default: 4292 panic("invalid page code value %#x", page_code); 4293 } 4294 } 4295 4296 return (CTL_RETVAL_COMPLETE); 4297} 4298 4299static int 4300ctl_init_log_page_index(struct ctl_lun *lun) 4301{ 4302 struct ctl_page_index *page_index; 4303 int i, j, k, prev; 4304 4305 memcpy(&lun->log_pages.index, log_page_index_template, 4306 sizeof(log_page_index_template)); 4307 4308 prev = -1; 4309 for (i = 0, j = 0, k = 0; i < CTL_NUM_LOG_PAGES; i++) { 4310 4311 page_index = &lun->log_pages.index[i]; 4312 if (lun->be_lun->lun_type == T_DIRECT && 4313 (page_index->page_flags & CTL_PAGE_FLAG_DIRECT) == 0) 4314 continue; 4315 if (lun->be_lun->lun_type == T_PROCESSOR && 4316 (page_index->page_flags & CTL_PAGE_FLAG_PROC) == 0) 4317 continue; 4318 if (lun->be_lun->lun_type == T_CDROM && 4319 (page_index->page_flags & CTL_PAGE_FLAG_CDROM) == 0) 4320 continue; 4321 4322 if (page_index->page_code == SLS_LOGICAL_BLOCK_PROVISIONING && 4323 lun->backend->lun_attr == NULL) 4324 continue; 4325 4326 if (page_index->page_code != prev) { 4327 lun->log_pages.pages_page[j] = page_index->page_code; 4328 prev = page_index->page_code; 4329 j++; 4330 } 4331 lun->log_pages.subpages_page[k*2] = page_index->page_code; 4332 lun->log_pages.subpages_page[k*2+1] = page_index->subpage; 4333 k++; 4334 } 4335 lun->log_pages.index[0].page_data = &lun->log_pages.pages_page[0]; 4336 lun->log_pages.index[0].page_len = j; 4337 lun->log_pages.index[1].page_data = &lun->log_pages.subpages_page[0]; 4338 lun->log_pages.index[1].page_len = k * 2; 4339 lun->log_pages.index[2].page_data = &lun->log_pages.lbp_page[0]; 4340 lun->log_pages.index[2].page_len = 12*CTL_NUM_LBP_PARAMS; 4341 lun->log_pages.index[3].page_data = (uint8_t *)&lun->log_pages.stat_page; 4342 lun->log_pages.index[3].page_len = sizeof(lun->log_pages.stat_page); 4343 4344 return (CTL_RETVAL_COMPLETE); 4345} 4346 4347static int 4348hex2bin(const char *str, uint8_t *buf, int buf_size) 4349{ 4350 int i; 4351 u_char c; 4352 4353 memset(buf, 0, buf_size); 4354 while (isspace(str[0])) 4355 str++; 4356 if (str[0] == '0' && (str[1] == 'x' || str[1] == 'X')) 4357 str += 2; 4358 buf_size *= 2; 4359 for (i = 0; str[i] != 0 && i < buf_size; i++) { 4360 c = str[i]; 4361 if (isdigit(c)) 4362 c -= '0'; 4363 else if (isalpha(c)) 4364 c -= isupper(c) ? 'A' - 10 : 'a' - 10; 4365 else 4366 break; 4367 if (c >= 16) 4368 break; 4369 if ((i & 1) == 0) 4370 buf[i / 2] |= (c << 4); 4371 else 4372 buf[i / 2] |= c; 4373 } 4374 return ((i + 1) / 2); 4375} 4376 4377/* 4378 * LUN allocation. 4379 * 4380 * Requirements: 4381 * - caller allocates and zeros LUN storage, or passes in a NULL LUN if he 4382 * wants us to allocate the LUN and he can block. 4383 * - ctl_softc is always set 4384 * - be_lun is set if the LUN has a backend (needed for disk LUNs) 4385 * 4386 * Returns 0 for success, non-zero (errno) for failure. 4387 */ 4388static int 4389ctl_alloc_lun(struct ctl_softc *ctl_softc, struct ctl_lun *ctl_lun, 4390 struct ctl_be_lun *const be_lun) 4391{ 4392 struct ctl_lun *nlun, *lun; 4393 struct scsi_vpd_id_descriptor *desc; 4394 struct scsi_vpd_id_t10 *t10id; 4395 const char *eui, *naa, *scsiname, *vendor, *value; 4396 int lun_number, i, lun_malloced; 4397 int devidlen, idlen1, idlen2 = 0, len; 4398 4399 if (be_lun == NULL) 4400 return (EINVAL); 4401 4402 /* 4403 * We currently only support Direct Access or Processor LUN types. 4404 */ 4405 switch (be_lun->lun_type) { 4406 case T_DIRECT: 4407 case T_PROCESSOR: 4408 case T_CDROM: 4409 break; 4410 case T_SEQUENTIAL: 4411 case T_CHANGER: 4412 default: 4413 be_lun->lun_config_status(be_lun->be_lun, 4414 CTL_LUN_CONFIG_FAILURE); 4415 break; 4416 } 4417 if (ctl_lun == NULL) { 4418 lun = malloc(sizeof(*lun), M_CTL, M_WAITOK); 4419 lun_malloced = 1; 4420 } else { 4421 lun_malloced = 0; 4422 lun = ctl_lun; 4423 } 4424 4425 memset(lun, 0, sizeof(*lun)); 4426 if (lun_malloced) 4427 lun->flags = CTL_LUN_MALLOCED; 4428 4429 /* Generate LUN ID. */ 4430 devidlen = max(CTL_DEVID_MIN_LEN, 4431 strnlen(be_lun->device_id, CTL_DEVID_LEN)); 4432 idlen1 = sizeof(*t10id) + devidlen; 4433 len = sizeof(struct scsi_vpd_id_descriptor) + idlen1; 4434 scsiname = ctl_get_opt(&be_lun->options, "scsiname"); 4435 if (scsiname != NULL) { 4436 idlen2 = roundup2(strlen(scsiname) + 1, 4); 4437 len += sizeof(struct scsi_vpd_id_descriptor) + idlen2; 4438 } 4439 eui = ctl_get_opt(&be_lun->options, "eui"); 4440 if (eui != NULL) { 4441 len += sizeof(struct scsi_vpd_id_descriptor) + 16; 4442 } 4443 naa = ctl_get_opt(&be_lun->options, "naa"); 4444 if (naa != NULL) { 4445 len += sizeof(struct scsi_vpd_id_descriptor) + 16; 4446 } 4447 lun->lun_devid = malloc(sizeof(struct ctl_devid) + len, 4448 M_CTL, M_WAITOK | M_ZERO); 4449 desc = (struct scsi_vpd_id_descriptor *)lun->lun_devid->data; 4450 desc->proto_codeset = SVPD_ID_CODESET_ASCII; 4451 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | SVPD_ID_TYPE_T10; 4452 desc->length = idlen1; 4453 t10id = (struct scsi_vpd_id_t10 *)&desc->identifier[0]; 4454 memset(t10id->vendor, ' ', sizeof(t10id->vendor)); 4455 if ((vendor = ctl_get_opt(&be_lun->options, "vendor")) == NULL) { 4456 strncpy((char *)t10id->vendor, CTL_VENDOR, sizeof(t10id->vendor)); 4457 } else { 4458 strncpy(t10id->vendor, vendor, 4459 min(sizeof(t10id->vendor), strlen(vendor))); 4460 } 4461 strncpy((char *)t10id->vendor_spec_id, 4462 (char *)be_lun->device_id, devidlen); 4463 if (scsiname != NULL) { 4464 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 4465 desc->length); 4466 desc->proto_codeset = SVPD_ID_CODESET_UTF8; 4467 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | 4468 SVPD_ID_TYPE_SCSI_NAME; 4469 desc->length = idlen2; 4470 strlcpy(desc->identifier, scsiname, idlen2); 4471 } 4472 if (eui != NULL) { 4473 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 4474 desc->length); 4475 desc->proto_codeset = SVPD_ID_CODESET_BINARY; 4476 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | 4477 SVPD_ID_TYPE_EUI64; 4478 desc->length = hex2bin(eui, desc->identifier, 16); 4479 desc->length = desc->length > 12 ? 16 : 4480 (desc->length > 8 ? 12 : 8); 4481 len -= 16 - desc->length; 4482 } 4483 if (naa != NULL) { 4484 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 4485 desc->length); 4486 desc->proto_codeset = SVPD_ID_CODESET_BINARY; 4487 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | 4488 SVPD_ID_TYPE_NAA; 4489 desc->length = hex2bin(naa, desc->identifier, 16); 4490 desc->length = desc->length > 8 ? 16 : 8; 4491 len -= 16 - desc->length; 4492 } 4493 lun->lun_devid->len = len; 4494 4495 mtx_lock(&ctl_softc->ctl_lock); 4496 /* 4497 * See if the caller requested a particular LUN number. If so, see 4498 * if it is available. Otherwise, allocate the first available LUN. 4499 */ 4500 if (be_lun->flags & CTL_LUN_FLAG_ID_REQ) { 4501 if ((be_lun->req_lun_id > (CTL_MAX_LUNS - 1)) 4502 || (ctl_is_set(ctl_softc->ctl_lun_mask, be_lun->req_lun_id))) { 4503 mtx_unlock(&ctl_softc->ctl_lock); 4504 if (be_lun->req_lun_id > (CTL_MAX_LUNS - 1)) { 4505 printf("ctl: requested LUN ID %d is higher " 4506 "than CTL_MAX_LUNS - 1 (%d)\n", 4507 be_lun->req_lun_id, CTL_MAX_LUNS - 1); 4508 } else { 4509 /* 4510 * XXX KDM return an error, or just assign 4511 * another LUN ID in this case?? 4512 */ 4513 printf("ctl: requested LUN ID %d is already " 4514 "in use\n", be_lun->req_lun_id); 4515 } 4516 if (lun->flags & CTL_LUN_MALLOCED) 4517 free(lun, M_CTL); 4518 be_lun->lun_config_status(be_lun->be_lun, 4519 CTL_LUN_CONFIG_FAILURE); 4520 return (ENOSPC); 4521 } 4522 lun_number = be_lun->req_lun_id; 4523 } else { 4524 lun_number = ctl_ffz(ctl_softc->ctl_lun_mask, 0, CTL_MAX_LUNS); 4525 if (lun_number == -1) { 4526 mtx_unlock(&ctl_softc->ctl_lock); 4527 printf("ctl: can't allocate LUN, out of LUNs\n"); 4528 if (lun->flags & CTL_LUN_MALLOCED) 4529 free(lun, M_CTL); 4530 be_lun->lun_config_status(be_lun->be_lun, 4531 CTL_LUN_CONFIG_FAILURE); 4532 return (ENOSPC); 4533 } 4534 } 4535 ctl_set_mask(ctl_softc->ctl_lun_mask, lun_number); 4536 4537 mtx_init(&lun->lun_lock, "CTL LUN", NULL, MTX_DEF); 4538 lun->lun = lun_number; 4539 lun->be_lun = be_lun; 4540 /* 4541 * The processor LUN is always enabled. Disk LUNs come on line 4542 * disabled, and must be enabled by the backend. 4543 */ 4544 lun->flags |= CTL_LUN_DISABLED; 4545 lun->backend = be_lun->be; 4546 be_lun->ctl_lun = lun; 4547 be_lun->lun_id = lun_number; 4548 atomic_add_int(&be_lun->be->num_luns, 1); 4549 if (be_lun->flags & CTL_LUN_FLAG_EJECTED) 4550 lun->flags |= CTL_LUN_EJECTED; 4551 if (be_lun->flags & CTL_LUN_FLAG_NO_MEDIA) 4552 lun->flags |= CTL_LUN_NO_MEDIA; 4553 if (be_lun->flags & CTL_LUN_FLAG_STOPPED) 4554 lun->flags |= CTL_LUN_STOPPED; 4555 4556 if (be_lun->flags & CTL_LUN_FLAG_PRIMARY) 4557 lun->flags |= CTL_LUN_PRIMARY_SC; 4558 4559 value = ctl_get_opt(&be_lun->options, "removable"); 4560 if (value != NULL) { 4561 if (strcmp(value, "on") == 0) 4562 lun->flags |= CTL_LUN_REMOVABLE; 4563 } else if (be_lun->lun_type == T_CDROM) 4564 lun->flags |= CTL_LUN_REMOVABLE; 4565 4566 lun->ctl_softc = ctl_softc; 4567#ifdef CTL_TIME_IO 4568 lun->last_busy = getsbinuptime(); 4569#endif 4570 TAILQ_INIT(&lun->ooa_queue); 4571 TAILQ_INIT(&lun->blocked_queue); 4572 STAILQ_INIT(&lun->error_list); 4573 ctl_tpc_lun_init(lun); 4574 4575 /* 4576 * Initialize the mode and log page index. 4577 */ 4578 ctl_init_page_index(lun); 4579 ctl_init_log_page_index(lun); 4580 4581 /* 4582 * Now, before we insert this lun on the lun list, set the lun 4583 * inventory changed UA for all other luns. 4584 */ 4585 STAILQ_FOREACH(nlun, &ctl_softc->lun_list, links) { 4586 mtx_lock(&nlun->lun_lock); 4587 ctl_est_ua_all(nlun, -1, CTL_UA_LUN_CHANGE); 4588 mtx_unlock(&nlun->lun_lock); 4589 } 4590 4591 STAILQ_INSERT_TAIL(&ctl_softc->lun_list, lun, links); 4592 4593 ctl_softc->ctl_luns[lun_number] = lun; 4594 4595 ctl_softc->num_luns++; 4596 4597 /* Setup statistics gathering */ 4598 lun->stats.device_type = be_lun->lun_type; 4599 lun->stats.lun_number = lun_number; 4600 lun->stats.blocksize = be_lun->blocksize; 4601 if (be_lun->blocksize == 0) 4602 lun->stats.flags = CTL_LUN_STATS_NO_BLOCKSIZE; 4603 for (i = 0;i < CTL_MAX_PORTS;i++) 4604 lun->stats.ports[i].targ_port = i; 4605 4606 mtx_unlock(&ctl_softc->ctl_lock); 4607 4608 lun->be_lun->lun_config_status(lun->be_lun->be_lun, CTL_LUN_CONFIG_OK); 4609 return (0); 4610} 4611 4612/* 4613 * Delete a LUN. 4614 * Assumptions: 4615 * - LUN has already been marked invalid and any pending I/O has been taken 4616 * care of. 4617 */ 4618static int 4619ctl_free_lun(struct ctl_lun *lun) 4620{ 4621 struct ctl_softc *softc; 4622 struct ctl_lun *nlun; 4623 int i; 4624 4625 softc = lun->ctl_softc; 4626 4627 mtx_assert(&softc->ctl_lock, MA_OWNED); 4628 4629 STAILQ_REMOVE(&softc->lun_list, lun, ctl_lun, links); 4630 4631 ctl_clear_mask(softc->ctl_lun_mask, lun->lun); 4632 4633 softc->ctl_luns[lun->lun] = NULL; 4634 4635 if (!TAILQ_EMPTY(&lun->ooa_queue)) 4636 panic("Freeing a LUN %p with outstanding I/O!!\n", lun); 4637 4638 softc->num_luns--; 4639 4640 /* 4641 * Tell the backend to free resources, if this LUN has a backend. 4642 */ 4643 atomic_subtract_int(&lun->be_lun->be->num_luns, 1); 4644 lun->be_lun->lun_shutdown(lun->be_lun->be_lun); 4645 4646 ctl_tpc_lun_shutdown(lun); 4647 mtx_destroy(&lun->lun_lock); 4648 free(lun->lun_devid, M_CTL); 4649 for (i = 0; i < CTL_MAX_PORTS; i++) 4650 free(lun->pending_ua[i], M_CTL); 4651 for (i = 0; i < CTL_MAX_PORTS; i++) 4652 free(lun->pr_keys[i], M_CTL); 4653 free(lun->write_buffer, M_CTL); 4654 if (lun->flags & CTL_LUN_MALLOCED) 4655 free(lun, M_CTL); 4656 4657 STAILQ_FOREACH(nlun, &softc->lun_list, links) { 4658 mtx_lock(&nlun->lun_lock); 4659 ctl_est_ua_all(nlun, -1, CTL_UA_LUN_CHANGE); 4660 mtx_unlock(&nlun->lun_lock); 4661 } 4662 4663 return (0); 4664} 4665 4666static void 4667ctl_create_lun(struct ctl_be_lun *be_lun) 4668{ 4669 4670 /* 4671 * ctl_alloc_lun() should handle all potential failure cases. 4672 */ 4673 ctl_alloc_lun(control_softc, NULL, be_lun); 4674} 4675 4676int 4677ctl_add_lun(struct ctl_be_lun *be_lun) 4678{ 4679 struct ctl_softc *softc = control_softc; 4680 4681 mtx_lock(&softc->ctl_lock); 4682 STAILQ_INSERT_TAIL(&softc->pending_lun_queue, be_lun, links); 4683 mtx_unlock(&softc->ctl_lock); 4684 wakeup(&softc->pending_lun_queue); 4685 4686 return (0); 4687} 4688 4689int 4690ctl_enable_lun(struct ctl_be_lun *be_lun) 4691{ 4692 struct ctl_softc *softc; 4693 struct ctl_port *port, *nport; 4694 struct ctl_lun *lun; 4695 int retval; 4696 4697 lun = (struct ctl_lun *)be_lun->ctl_lun; 4698 softc = lun->ctl_softc; 4699 4700 mtx_lock(&softc->ctl_lock); 4701 mtx_lock(&lun->lun_lock); 4702 if ((lun->flags & CTL_LUN_DISABLED) == 0) { 4703 /* 4704 * eh? Why did we get called if the LUN is already 4705 * enabled? 4706 */ 4707 mtx_unlock(&lun->lun_lock); 4708 mtx_unlock(&softc->ctl_lock); 4709 return (0); 4710 } 4711 lun->flags &= ~CTL_LUN_DISABLED; 4712 mtx_unlock(&lun->lun_lock); 4713 4714 STAILQ_FOREACH_SAFE(port, &softc->port_list, links, nport) { 4715 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0 || 4716 port->lun_map != NULL || port->lun_enable == NULL) 4717 continue; 4718 4719 /* 4720 * Drop the lock while we call the FETD's enable routine. 4721 * This can lead to a callback into CTL (at least in the 4722 * case of the internal initiator frontend. 4723 */ 4724 mtx_unlock(&softc->ctl_lock); 4725 retval = port->lun_enable(port->targ_lun_arg, lun->lun); 4726 mtx_lock(&softc->ctl_lock); 4727 if (retval != 0) { 4728 printf("%s: FETD %s port %d returned error " 4729 "%d for lun_enable on lun %jd\n", 4730 __func__, port->port_name, port->targ_port, 4731 retval, (intmax_t)lun->lun); 4732 } 4733 } 4734 4735 mtx_unlock(&softc->ctl_lock); 4736 ctl_isc_announce_lun(lun); 4737 4738 return (0); 4739} 4740 4741int 4742ctl_disable_lun(struct ctl_be_lun *be_lun) 4743{ 4744 struct ctl_softc *softc; 4745 struct ctl_port *port; 4746 struct ctl_lun *lun; 4747 int retval; 4748 4749 lun = (struct ctl_lun *)be_lun->ctl_lun; 4750 softc = lun->ctl_softc; 4751 4752 mtx_lock(&softc->ctl_lock); 4753 mtx_lock(&lun->lun_lock); 4754 if (lun->flags & CTL_LUN_DISABLED) { 4755 mtx_unlock(&lun->lun_lock); 4756 mtx_unlock(&softc->ctl_lock); 4757 return (0); 4758 } 4759 lun->flags |= CTL_LUN_DISABLED; 4760 mtx_unlock(&lun->lun_lock); 4761 4762 STAILQ_FOREACH(port, &softc->port_list, links) { 4763 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0 || 4764 port->lun_map != NULL || port->lun_disable == NULL) 4765 continue; 4766 4767 /* 4768 * Drop the lock before we call the frontend's disable 4769 * routine, to avoid lock order reversals. 4770 * 4771 * XXX KDM what happens if the frontend list changes while 4772 * we're traversing it? It's unlikely, but should be handled. 4773 */ 4774 mtx_unlock(&softc->ctl_lock); 4775 retval = port->lun_disable(port->targ_lun_arg, lun->lun); 4776 mtx_lock(&softc->ctl_lock); 4777 if (retval != 0) { 4778 printf("%s: FETD %s port %d returned error " 4779 "%d for lun_disable on lun %jd\n", 4780 __func__, port->port_name, port->targ_port, 4781 retval, (intmax_t)lun->lun); 4782 } 4783 } 4784 4785 mtx_unlock(&softc->ctl_lock); 4786 ctl_isc_announce_lun(lun); 4787 4788 return (0); 4789} 4790 4791int 4792ctl_start_lun(struct ctl_be_lun *be_lun) 4793{ 4794 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 4795 4796 mtx_lock(&lun->lun_lock); 4797 lun->flags &= ~CTL_LUN_STOPPED; 4798 mtx_unlock(&lun->lun_lock); 4799 return (0); 4800} 4801 4802int 4803ctl_stop_lun(struct ctl_be_lun *be_lun) 4804{ 4805 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 4806 4807 mtx_lock(&lun->lun_lock); 4808 lun->flags |= CTL_LUN_STOPPED; 4809 mtx_unlock(&lun->lun_lock); 4810 return (0); 4811} 4812 4813int 4814ctl_lun_no_media(struct ctl_be_lun *be_lun) 4815{ 4816 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 4817 4818 mtx_lock(&lun->lun_lock); 4819 lun->flags |= CTL_LUN_NO_MEDIA; 4820 mtx_unlock(&lun->lun_lock); 4821 return (0); 4822} 4823 4824int 4825ctl_lun_has_media(struct ctl_be_lun *be_lun) 4826{ 4827 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 4828 union ctl_ha_msg msg; 4829 4830 mtx_lock(&lun->lun_lock); 4831 lun->flags &= ~(CTL_LUN_NO_MEDIA | CTL_LUN_EJECTED); 4832 if (lun->flags & CTL_LUN_REMOVABLE) 4833 ctl_est_ua_all(lun, -1, CTL_UA_MEDIUM_CHANGE); 4834 mtx_unlock(&lun->lun_lock); 4835 if ((lun->flags & CTL_LUN_REMOVABLE) && 4836 lun->ctl_softc->ha_mode == CTL_HA_MODE_XFER) { 4837 bzero(&msg.ua, sizeof(msg.ua)); 4838 msg.hdr.msg_type = CTL_MSG_UA; 4839 msg.hdr.nexus.initid = -1; 4840 msg.hdr.nexus.targ_port = -1; 4841 msg.hdr.nexus.targ_lun = lun->lun; 4842 msg.hdr.nexus.targ_mapped_lun = lun->lun; 4843 msg.ua.ua_all = 1; 4844 msg.ua.ua_set = 1; 4845 msg.ua.ua_type = CTL_UA_MEDIUM_CHANGE; 4846 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, sizeof(msg.ua), 4847 M_WAITOK); 4848 } 4849 return (0); 4850} 4851 4852int 4853ctl_lun_ejected(struct ctl_be_lun *be_lun) 4854{ 4855 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 4856 4857 mtx_lock(&lun->lun_lock); 4858 lun->flags |= CTL_LUN_EJECTED; 4859 mtx_unlock(&lun->lun_lock); 4860 return (0); 4861} 4862 4863int 4864ctl_lun_primary(struct ctl_be_lun *be_lun) 4865{ 4866 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 4867 4868 mtx_lock(&lun->lun_lock); 4869 lun->flags |= CTL_LUN_PRIMARY_SC; 4870 ctl_est_ua_all(lun, -1, CTL_UA_ASYM_ACC_CHANGE); 4871 mtx_unlock(&lun->lun_lock); 4872 ctl_isc_announce_lun(lun); 4873 return (0); 4874} 4875 4876int 4877ctl_lun_secondary(struct ctl_be_lun *be_lun) 4878{ 4879 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 4880 4881 mtx_lock(&lun->lun_lock); 4882 lun->flags &= ~CTL_LUN_PRIMARY_SC; 4883 ctl_est_ua_all(lun, -1, CTL_UA_ASYM_ACC_CHANGE); 4884 mtx_unlock(&lun->lun_lock); 4885 ctl_isc_announce_lun(lun); 4886 return (0); 4887} 4888 4889int 4890ctl_invalidate_lun(struct ctl_be_lun *be_lun) 4891{ 4892 struct ctl_softc *softc; 4893 struct ctl_lun *lun; 4894 4895 lun = (struct ctl_lun *)be_lun->ctl_lun; 4896 softc = lun->ctl_softc; 4897 4898 mtx_lock(&lun->lun_lock); 4899 4900 /* 4901 * The LUN needs to be disabled before it can be marked invalid. 4902 */ 4903 if ((lun->flags & CTL_LUN_DISABLED) == 0) { 4904 mtx_unlock(&lun->lun_lock); 4905 return (-1); 4906 } 4907 /* 4908 * Mark the LUN invalid. 4909 */ 4910 lun->flags |= CTL_LUN_INVALID; 4911 4912 /* 4913 * If there is nothing in the OOA queue, go ahead and free the LUN. 4914 * If we have something in the OOA queue, we'll free it when the 4915 * last I/O completes. 4916 */ 4917 if (TAILQ_EMPTY(&lun->ooa_queue)) { 4918 mtx_unlock(&lun->lun_lock); 4919 mtx_lock(&softc->ctl_lock); 4920 ctl_free_lun(lun); 4921 mtx_unlock(&softc->ctl_lock); 4922 } else 4923 mtx_unlock(&lun->lun_lock); 4924 4925 return (0); 4926} 4927 4928void 4929ctl_lun_capacity_changed(struct ctl_be_lun *be_lun) 4930{ 4931 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 4932 union ctl_ha_msg msg; 4933 4934 mtx_lock(&lun->lun_lock); 4935 ctl_est_ua_all(lun, -1, CTL_UA_CAPACITY_CHANGE); 4936 mtx_unlock(&lun->lun_lock); 4937 if (lun->ctl_softc->ha_mode == CTL_HA_MODE_XFER) { 4938 /* Send msg to other side. */ 4939 bzero(&msg.ua, sizeof(msg.ua)); 4940 msg.hdr.msg_type = CTL_MSG_UA; 4941 msg.hdr.nexus.initid = -1; 4942 msg.hdr.nexus.targ_port = -1; 4943 msg.hdr.nexus.targ_lun = lun->lun; 4944 msg.hdr.nexus.targ_mapped_lun = lun->lun; 4945 msg.ua.ua_all = 1; 4946 msg.ua.ua_set = 1; 4947 msg.ua.ua_type = CTL_UA_CAPACITY_CHANGE; 4948 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, sizeof(msg.ua), 4949 M_WAITOK); 4950 } 4951} 4952 4953/* 4954 * Backend "memory move is complete" callback for requests that never 4955 * make it down to say RAIDCore's configuration code. 4956 */ 4957int 4958ctl_config_move_done(union ctl_io *io) 4959{ 4960 int retval; 4961 4962 CTL_DEBUG_PRINT(("ctl_config_move_done\n")); 4963 KASSERT(io->io_hdr.io_type == CTL_IO_SCSI, 4964 ("Config I/O type isn't CTL_IO_SCSI (%d)!", io->io_hdr.io_type)); 4965 4966 if ((io->io_hdr.port_status != 0) && 4967 ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE || 4968 (io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS)) { 4969 /* 4970 * For hardware error sense keys, the sense key 4971 * specific value is defined to be a retry count, 4972 * but we use it to pass back an internal FETD 4973 * error code. XXX KDM Hopefully the FETD is only 4974 * using 16 bits for an error code, since that's 4975 * all the space we have in the sks field. 4976 */ 4977 ctl_set_internal_failure(&io->scsiio, 4978 /*sks_valid*/ 1, 4979 /*retry_count*/ 4980 io->io_hdr.port_status); 4981 } 4982 4983 if (ctl_debug & CTL_DEBUG_CDB_DATA) 4984 ctl_data_print(io); 4985 if (((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_IN) || 4986 ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE && 4987 (io->io_hdr.status & CTL_STATUS_MASK) != CTL_SUCCESS) || 4988 ((io->io_hdr.flags & CTL_FLAG_ABORT) != 0)) { 4989 /* 4990 * XXX KDM just assuming a single pointer here, and not a 4991 * S/G list. If we start using S/G lists for config data, 4992 * we'll need to know how to clean them up here as well. 4993 */ 4994 if (io->io_hdr.flags & CTL_FLAG_ALLOCATED) 4995 free(io->scsiio.kern_data_ptr, M_CTL); 4996 ctl_done(io); 4997 retval = CTL_RETVAL_COMPLETE; 4998 } else { 4999 /* 5000 * XXX KDM now we need to continue data movement. Some 5001 * options: 5002 * - call ctl_scsiio() again? We don't do this for data 5003 * writes, because for those at least we know ahead of 5004 * time where the write will go and how long it is. For 5005 * config writes, though, that information is largely 5006 * contained within the write itself, thus we need to 5007 * parse out the data again. 5008 * 5009 * - Call some other function once the data is in? 5010 */ 5011 5012 /* 5013 * XXX KDM call ctl_scsiio() again for now, and check flag 5014 * bits to see whether we're allocated or not. 5015 */ 5016 retval = ctl_scsiio(&io->scsiio); 5017 } 5018 return (retval); 5019} 5020 5021/* 5022 * This gets called by a backend driver when it is done with a 5023 * data_submit method. 5024 */ 5025void 5026ctl_data_submit_done(union ctl_io *io) 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 there is an error, though, we don't want to keep processing. 5034 * Instead, just send status back to the initiator. 5035 */ 5036 if ((io->io_hdr.flags & CTL_FLAG_IO_CONT) && 5037 (io->io_hdr.flags & CTL_FLAG_ABORT) == 0 && 5038 ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE || 5039 (io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS)) { 5040 io->scsiio.io_cont(io); 5041 return; 5042 } 5043 ctl_done(io); 5044} 5045 5046/* 5047 * This gets called by a backend driver when it is done with a 5048 * configuration write. 5049 */ 5050void 5051ctl_config_write_done(union ctl_io *io) 5052{ 5053 uint8_t *buf; 5054 5055 /* 5056 * If the IO_CONT flag is set, we need to call the supplied 5057 * function to continue processing the I/O, instead of completing 5058 * the I/O just yet. 5059 * 5060 * If there is an error, though, we don't want to keep processing. 5061 * Instead, just send status back to the initiator. 5062 */ 5063 if ((io->io_hdr.flags & CTL_FLAG_IO_CONT) && 5064 (io->io_hdr.flags & CTL_FLAG_ABORT) == 0 && 5065 ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE || 5066 (io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS)) { 5067 io->scsiio.io_cont(io); 5068 return; 5069 } 5070 /* 5071 * Since a configuration write can be done for commands that actually 5072 * have data allocated, like write buffer, and commands that have 5073 * no data, like start/stop unit, we need to check here. 5074 */ 5075 if (io->io_hdr.flags & CTL_FLAG_ALLOCATED) 5076 buf = io->scsiio.kern_data_ptr; 5077 else 5078 buf = NULL; 5079 ctl_done(io); 5080 if (buf) 5081 free(buf, M_CTL); 5082} 5083 5084void 5085ctl_config_read_done(union ctl_io *io) 5086{ 5087 uint8_t *buf; 5088 5089 /* 5090 * If there is some error -- we are done, skip data transfer. 5091 */ 5092 if ((io->io_hdr.flags & CTL_FLAG_ABORT) != 0 || 5093 ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE && 5094 (io->io_hdr.status & CTL_STATUS_MASK) != CTL_SUCCESS)) { 5095 if (io->io_hdr.flags & CTL_FLAG_ALLOCATED) 5096 buf = io->scsiio.kern_data_ptr; 5097 else 5098 buf = NULL; 5099 ctl_done(io); 5100 if (buf) 5101 free(buf, M_CTL); 5102 return; 5103 } 5104 5105 /* 5106 * If the IO_CONT flag is set, we need to call the supplied 5107 * function to continue processing the I/O, instead of completing 5108 * the I/O just yet. 5109 */ 5110 if (io->io_hdr.flags & CTL_FLAG_IO_CONT) { 5111 io->scsiio.io_cont(io); 5112 return; 5113 } 5114 5115 ctl_datamove(io); 5116} 5117 5118/* 5119 * SCSI release command. 5120 */ 5121int 5122ctl_scsi_release(struct ctl_scsiio *ctsio) 5123{ 5124 struct ctl_lun *lun; 5125 uint32_t residx; 5126 5127 CTL_DEBUG_PRINT(("ctl_scsi_release\n")); 5128 5129 residx = ctl_get_initindex(&ctsio->io_hdr.nexus); 5130 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5131 5132 /* 5133 * XXX KDM right now, we only support LUN reservation. We don't 5134 * support 3rd party reservations, or extent reservations, which 5135 * might actually need the parameter list. If we've gotten this 5136 * far, we've got a LUN reservation. Anything else got kicked out 5137 * above. So, according to SPC, ignore the length. 5138 */ 5139 5140 mtx_lock(&lun->lun_lock); 5141 5142 /* 5143 * According to SPC, it is not an error for an intiator to attempt 5144 * to release a reservation on a LUN that isn't reserved, or that 5145 * is reserved by another initiator. The reservation can only be 5146 * released, though, by the initiator who made it or by one of 5147 * several reset type events. 5148 */ 5149 if ((lun->flags & CTL_LUN_RESERVED) && (lun->res_idx == residx)) 5150 lun->flags &= ~CTL_LUN_RESERVED; 5151 5152 mtx_unlock(&lun->lun_lock); 5153 5154 ctl_set_success(ctsio); 5155 ctl_done((union ctl_io *)ctsio); 5156 return (CTL_RETVAL_COMPLETE); 5157} 5158 5159int 5160ctl_scsi_reserve(struct ctl_scsiio *ctsio) 5161{ 5162 struct ctl_lun *lun; 5163 uint32_t residx; 5164 5165 CTL_DEBUG_PRINT(("ctl_reserve\n")); 5166 5167 residx = ctl_get_initindex(&ctsio->io_hdr.nexus); 5168 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5169 5170 /* 5171 * XXX KDM right now, we only support LUN reservation. We don't 5172 * support 3rd party reservations, or extent reservations, which 5173 * might actually need the parameter list. If we've gotten this 5174 * far, we've got a LUN reservation. Anything else got kicked out 5175 * above. So, according to SPC, ignore the length. 5176 */ 5177 5178 mtx_lock(&lun->lun_lock); 5179 if ((lun->flags & CTL_LUN_RESERVED) && (lun->res_idx != residx)) { 5180 ctl_set_reservation_conflict(ctsio); 5181 goto bailout; 5182 } 5183 5184 /* SPC-3 exceptions to SPC-2 RESERVE and RELEASE behavior. */ 5185 if (lun->flags & CTL_LUN_PR_RESERVED) { 5186 ctl_set_success(ctsio); 5187 goto bailout; 5188 } 5189 5190 lun->flags |= CTL_LUN_RESERVED; 5191 lun->res_idx = residx; 5192 ctl_set_success(ctsio); 5193 5194bailout: 5195 mtx_unlock(&lun->lun_lock); 5196 ctl_done((union ctl_io *)ctsio); 5197 return (CTL_RETVAL_COMPLETE); 5198} 5199 5200int 5201ctl_start_stop(struct ctl_scsiio *ctsio) 5202{ 5203 struct scsi_start_stop_unit *cdb; 5204 struct ctl_lun *lun; 5205 int retval; 5206 5207 CTL_DEBUG_PRINT(("ctl_start_stop\n")); 5208 5209 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5210 cdb = (struct scsi_start_stop_unit *)ctsio->cdb; 5211 5212 if ((cdb->how & SSS_PC_MASK) == 0) { 5213 if ((lun->flags & CTL_LUN_PR_RESERVED) && 5214 (cdb->how & SSS_START) == 0) { 5215 uint32_t residx; 5216 5217 residx = ctl_get_initindex(&ctsio->io_hdr.nexus); 5218 if (ctl_get_prkey(lun, residx) == 0 || 5219 (lun->pr_res_idx != residx && lun->pr_res_type < 4)) { 5220 5221 ctl_set_reservation_conflict(ctsio); 5222 ctl_done((union ctl_io *)ctsio); 5223 return (CTL_RETVAL_COMPLETE); 5224 } 5225 } 5226 5227 if ((cdb->how & SSS_LOEJ) && 5228 (lun->flags & CTL_LUN_REMOVABLE) == 0) { 5229 ctl_set_invalid_field(ctsio, 5230 /*sks_valid*/ 1, 5231 /*command*/ 1, 5232 /*field*/ 4, 5233 /*bit_valid*/ 1, 5234 /*bit*/ 1); 5235 ctl_done((union ctl_io *)ctsio); 5236 return (CTL_RETVAL_COMPLETE); 5237 } 5238 5239 if ((cdb->how & SSS_START) == 0 && (cdb->how & SSS_LOEJ) && 5240 lun->prevent_count > 0) { 5241 /* "Medium removal prevented" */ 5242 ctl_set_sense(ctsio, /*current_error*/ 1, 5243 /*sense_key*/(lun->flags & CTL_LUN_NO_MEDIA) ? 5244 SSD_KEY_NOT_READY : SSD_KEY_ILLEGAL_REQUEST, 5245 /*asc*/ 0x53, /*ascq*/ 0x02, SSD_ELEM_NONE); 5246 ctl_done((union ctl_io *)ctsio); 5247 return (CTL_RETVAL_COMPLETE); 5248 } 5249 } 5250 5251 retval = lun->backend->config_write((union ctl_io *)ctsio); 5252 return (retval); 5253} 5254 5255int 5256ctl_prevent_allow(struct ctl_scsiio *ctsio) 5257{ 5258 struct ctl_lun *lun; 5259 struct scsi_prevent *cdb; 5260 int retval; 5261 uint32_t initidx; 5262 5263 CTL_DEBUG_PRINT(("ctl_prevent_allow\n")); 5264 5265 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5266 cdb = (struct scsi_prevent *)ctsio->cdb; 5267 5268 if ((lun->flags & CTL_LUN_REMOVABLE) == 0) { 5269 ctl_set_invalid_opcode(ctsio); 5270 ctl_done((union ctl_io *)ctsio); 5271 return (CTL_RETVAL_COMPLETE); 5272 } 5273 5274 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 5275 mtx_lock(&lun->lun_lock); 5276 if ((cdb->how & PR_PREVENT) && 5277 ctl_is_set(lun->prevent, initidx) == 0) { 5278 ctl_set_mask(lun->prevent, initidx); 5279 lun->prevent_count++; 5280 } else if ((cdb->how & PR_PREVENT) == 0 && 5281 ctl_is_set(lun->prevent, initidx)) { 5282 ctl_clear_mask(lun->prevent, initidx); 5283 lun->prevent_count--; 5284 } 5285 mtx_unlock(&lun->lun_lock); 5286 retval = lun->backend->config_write((union ctl_io *)ctsio); 5287 return (retval); 5288} 5289 5290/* 5291 * We support the SYNCHRONIZE CACHE command (10 and 16 byte versions), but 5292 * we don't really do anything with the LBA and length fields if the user 5293 * passes them in. Instead we'll just flush out the cache for the entire 5294 * LUN. 5295 */ 5296int 5297ctl_sync_cache(struct ctl_scsiio *ctsio) 5298{ 5299 struct ctl_lun *lun; 5300 struct ctl_softc *softc; 5301 struct ctl_lba_len_flags *lbalen; 5302 uint64_t starting_lba; 5303 uint32_t block_count; 5304 int retval; 5305 uint8_t byte2; 5306 5307 CTL_DEBUG_PRINT(("ctl_sync_cache\n")); 5308 5309 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5310 softc = lun->ctl_softc; 5311 retval = 0; 5312 5313 switch (ctsio->cdb[0]) { 5314 case SYNCHRONIZE_CACHE: { 5315 struct scsi_sync_cache *cdb; 5316 cdb = (struct scsi_sync_cache *)ctsio->cdb; 5317 5318 starting_lba = scsi_4btoul(cdb->begin_lba); 5319 block_count = scsi_2btoul(cdb->lb_count); 5320 byte2 = cdb->byte2; 5321 break; 5322 } 5323 case SYNCHRONIZE_CACHE_16: { 5324 struct scsi_sync_cache_16 *cdb; 5325 cdb = (struct scsi_sync_cache_16 *)ctsio->cdb; 5326 5327 starting_lba = scsi_8btou64(cdb->begin_lba); 5328 block_count = scsi_4btoul(cdb->lb_count); 5329 byte2 = cdb->byte2; 5330 break; 5331 } 5332 default: 5333 ctl_set_invalid_opcode(ctsio); 5334 ctl_done((union ctl_io *)ctsio); 5335 goto bailout; 5336 break; /* NOTREACHED */ 5337 } 5338 5339 /* 5340 * We check the LBA and length, but don't do anything with them. 5341 * A SYNCHRONIZE CACHE will cause the entire cache for this lun to 5342 * get flushed. This check will just help satisfy anyone who wants 5343 * to see an error for an out of range LBA. 5344 */ 5345 if ((starting_lba + block_count) > (lun->be_lun->maxlba + 1)) { 5346 ctl_set_lba_out_of_range(ctsio); 5347 ctl_done((union ctl_io *)ctsio); 5348 goto bailout; 5349 } 5350 5351 lbalen = (struct ctl_lba_len_flags *)&ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 5352 lbalen->lba = starting_lba; 5353 lbalen->len = block_count; 5354 lbalen->flags = byte2; 5355 retval = lun->backend->config_write((union ctl_io *)ctsio); 5356 5357bailout: 5358 return (retval); 5359} 5360 5361int 5362ctl_format(struct ctl_scsiio *ctsio) 5363{ 5364 struct scsi_format *cdb; 5365 struct ctl_lun *lun; 5366 int length, defect_list_len; 5367 5368 CTL_DEBUG_PRINT(("ctl_format\n")); 5369 5370 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5371 5372 cdb = (struct scsi_format *)ctsio->cdb; 5373 5374 length = 0; 5375 if (cdb->byte2 & SF_FMTDATA) { 5376 if (cdb->byte2 & SF_LONGLIST) 5377 length = sizeof(struct scsi_format_header_long); 5378 else 5379 length = sizeof(struct scsi_format_header_short); 5380 } 5381 5382 if (((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) 5383 && (length > 0)) { 5384 ctsio->kern_data_ptr = malloc(length, M_CTL, M_WAITOK); 5385 ctsio->kern_data_len = length; 5386 ctsio->kern_total_len = length; 5387 ctsio->kern_data_resid = 0; 5388 ctsio->kern_rel_offset = 0; 5389 ctsio->kern_sg_entries = 0; 5390 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5391 ctsio->be_move_done = ctl_config_move_done; 5392 ctl_datamove((union ctl_io *)ctsio); 5393 5394 return (CTL_RETVAL_COMPLETE); 5395 } 5396 5397 defect_list_len = 0; 5398 5399 if (cdb->byte2 & SF_FMTDATA) { 5400 if (cdb->byte2 & SF_LONGLIST) { 5401 struct scsi_format_header_long *header; 5402 5403 header = (struct scsi_format_header_long *) 5404 ctsio->kern_data_ptr; 5405 5406 defect_list_len = scsi_4btoul(header->defect_list_len); 5407 if (defect_list_len != 0) { 5408 ctl_set_invalid_field(ctsio, 5409 /*sks_valid*/ 1, 5410 /*command*/ 0, 5411 /*field*/ 2, 5412 /*bit_valid*/ 0, 5413 /*bit*/ 0); 5414 goto bailout; 5415 } 5416 } else { 5417 struct scsi_format_header_short *header; 5418 5419 header = (struct scsi_format_header_short *) 5420 ctsio->kern_data_ptr; 5421 5422 defect_list_len = scsi_2btoul(header->defect_list_len); 5423 if (defect_list_len != 0) { 5424 ctl_set_invalid_field(ctsio, 5425 /*sks_valid*/ 1, 5426 /*command*/ 0, 5427 /*field*/ 2, 5428 /*bit_valid*/ 0, 5429 /*bit*/ 0); 5430 goto bailout; 5431 } 5432 } 5433 } 5434 5435 ctl_set_success(ctsio); 5436bailout: 5437 5438 if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) { 5439 free(ctsio->kern_data_ptr, M_CTL); 5440 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED; 5441 } 5442 5443 ctl_done((union ctl_io *)ctsio); 5444 return (CTL_RETVAL_COMPLETE); 5445} 5446 5447int 5448ctl_read_buffer(struct ctl_scsiio *ctsio) 5449{ 5450 struct ctl_lun *lun; 5451 uint64_t buffer_offset; 5452 uint32_t len; 5453 uint8_t byte2; 5454 static uint8_t descr[4]; 5455 static uint8_t echo_descr[4] = { 0 }; 5456 5457 CTL_DEBUG_PRINT(("ctl_read_buffer\n")); 5458 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5459 switch (ctsio->cdb[0]) { 5460 case READ_BUFFER: { 5461 struct scsi_read_buffer *cdb; 5462 5463 cdb = (struct scsi_read_buffer *)ctsio->cdb; 5464 buffer_offset = scsi_3btoul(cdb->offset); 5465 len = scsi_3btoul(cdb->length); 5466 byte2 = cdb->byte2; 5467 break; 5468 } 5469 case READ_BUFFER_16: { 5470 struct scsi_read_buffer_16 *cdb; 5471 5472 cdb = (struct scsi_read_buffer_16 *)ctsio->cdb; 5473 buffer_offset = scsi_8btou64(cdb->offset); 5474 len = scsi_4btoul(cdb->length); 5475 byte2 = cdb->byte2; 5476 break; 5477 } 5478 default: /* This shouldn't happen. */ 5479 ctl_set_invalid_opcode(ctsio); 5480 ctl_done((union ctl_io *)ctsio); 5481 return (CTL_RETVAL_COMPLETE); 5482 } 5483 5484 if ((byte2 & RWB_MODE) != RWB_MODE_DATA && 5485 (byte2 & RWB_MODE) != RWB_MODE_ECHO_DESCR && 5486 (byte2 & RWB_MODE) != RWB_MODE_DESCR) { 5487 ctl_set_invalid_field(ctsio, 5488 /*sks_valid*/ 1, 5489 /*command*/ 1, 5490 /*field*/ 1, 5491 /*bit_valid*/ 1, 5492 /*bit*/ 4); 5493 ctl_done((union ctl_io *)ctsio); 5494 return (CTL_RETVAL_COMPLETE); 5495 } 5496 5497 if (buffer_offset > CTL_WRITE_BUFFER_SIZE || 5498 buffer_offset + len > CTL_WRITE_BUFFER_SIZE) { 5499 ctl_set_invalid_field(ctsio, 5500 /*sks_valid*/ 1, 5501 /*command*/ 1, 5502 /*field*/ 6, 5503 /*bit_valid*/ 0, 5504 /*bit*/ 0); 5505 ctl_done((union ctl_io *)ctsio); 5506 return (CTL_RETVAL_COMPLETE); 5507 } 5508 5509 if ((byte2 & RWB_MODE) == RWB_MODE_DESCR) { 5510 descr[0] = 0; 5511 scsi_ulto3b(CTL_WRITE_BUFFER_SIZE, &descr[1]); 5512 ctsio->kern_data_ptr = descr; 5513 len = min(len, sizeof(descr)); 5514 } else if ((byte2 & RWB_MODE) == RWB_MODE_ECHO_DESCR) { 5515 ctsio->kern_data_ptr = echo_descr; 5516 len = min(len, sizeof(echo_descr)); 5517 } else { 5518 if (lun->write_buffer == NULL) { 5519 lun->write_buffer = malloc(CTL_WRITE_BUFFER_SIZE, 5520 M_CTL, M_WAITOK); 5521 } 5522 ctsio->kern_data_ptr = lun->write_buffer + buffer_offset; 5523 } 5524 ctsio->kern_data_len = len; 5525 ctsio->kern_total_len = len; 5526 ctsio->kern_data_resid = 0; 5527 ctsio->kern_rel_offset = 0; 5528 ctsio->kern_sg_entries = 0; 5529 ctl_set_success(ctsio); 5530 ctsio->be_move_done = ctl_config_move_done; 5531 ctl_datamove((union ctl_io *)ctsio); 5532 return (CTL_RETVAL_COMPLETE); 5533} 5534 5535int 5536ctl_write_buffer(struct ctl_scsiio *ctsio) 5537{ 5538 struct scsi_write_buffer *cdb; 5539 struct ctl_lun *lun; 5540 int buffer_offset, len; 5541 5542 CTL_DEBUG_PRINT(("ctl_write_buffer\n")); 5543 5544 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5545 cdb = (struct scsi_write_buffer *)ctsio->cdb; 5546 5547 if ((cdb->byte2 & RWB_MODE) != RWB_MODE_DATA) { 5548 ctl_set_invalid_field(ctsio, 5549 /*sks_valid*/ 1, 5550 /*command*/ 1, 5551 /*field*/ 1, 5552 /*bit_valid*/ 1, 5553 /*bit*/ 4); 5554 ctl_done((union ctl_io *)ctsio); 5555 return (CTL_RETVAL_COMPLETE); 5556 } 5557 5558 len = scsi_3btoul(cdb->length); 5559 buffer_offset = scsi_3btoul(cdb->offset); 5560 5561 if (buffer_offset + len > CTL_WRITE_BUFFER_SIZE) { 5562 ctl_set_invalid_field(ctsio, 5563 /*sks_valid*/ 1, 5564 /*command*/ 1, 5565 /*field*/ 6, 5566 /*bit_valid*/ 0, 5567 /*bit*/ 0); 5568 ctl_done((union ctl_io *)ctsio); 5569 return (CTL_RETVAL_COMPLETE); 5570 } 5571 5572 /* 5573 * If we've got a kernel request that hasn't been malloced yet, 5574 * malloc it and tell the caller the data buffer is here. 5575 */ 5576 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 5577 if (lun->write_buffer == NULL) { 5578 lun->write_buffer = malloc(CTL_WRITE_BUFFER_SIZE, 5579 M_CTL, M_WAITOK); 5580 } 5581 ctsio->kern_data_ptr = lun->write_buffer + buffer_offset; 5582 ctsio->kern_data_len = len; 5583 ctsio->kern_total_len = len; 5584 ctsio->kern_data_resid = 0; 5585 ctsio->kern_rel_offset = 0; 5586 ctsio->kern_sg_entries = 0; 5587 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5588 ctsio->be_move_done = ctl_config_move_done; 5589 ctl_datamove((union ctl_io *)ctsio); 5590 5591 return (CTL_RETVAL_COMPLETE); 5592 } 5593 5594 ctl_set_success(ctsio); 5595 ctl_done((union ctl_io *)ctsio); 5596 return (CTL_RETVAL_COMPLETE); 5597} 5598 5599int 5600ctl_write_same(struct ctl_scsiio *ctsio) 5601{ 5602 struct ctl_lun *lun; 5603 struct ctl_lba_len_flags *lbalen; 5604 uint64_t lba; 5605 uint32_t num_blocks; 5606 int len, retval; 5607 uint8_t byte2; 5608 5609 CTL_DEBUG_PRINT(("ctl_write_same\n")); 5610 5611 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5612 5613 switch (ctsio->cdb[0]) { 5614 case WRITE_SAME_10: { 5615 struct scsi_write_same_10 *cdb; 5616 5617 cdb = (struct scsi_write_same_10 *)ctsio->cdb; 5618 5619 lba = scsi_4btoul(cdb->addr); 5620 num_blocks = scsi_2btoul(cdb->length); 5621 byte2 = cdb->byte2; 5622 break; 5623 } 5624 case WRITE_SAME_16: { 5625 struct scsi_write_same_16 *cdb; 5626 5627 cdb = (struct scsi_write_same_16 *)ctsio->cdb; 5628 5629 lba = scsi_8btou64(cdb->addr); 5630 num_blocks = scsi_4btoul(cdb->length); 5631 byte2 = cdb->byte2; 5632 break; 5633 } 5634 default: 5635 /* 5636 * We got a command we don't support. This shouldn't 5637 * happen, commands should be filtered out above us. 5638 */ 5639 ctl_set_invalid_opcode(ctsio); 5640 ctl_done((union ctl_io *)ctsio); 5641 5642 return (CTL_RETVAL_COMPLETE); 5643 break; /* NOTREACHED */ 5644 } 5645 5646 /* ANCHOR flag can be used only together with UNMAP */ 5647 if ((byte2 & SWS_UNMAP) == 0 && (byte2 & SWS_ANCHOR) != 0) { 5648 ctl_set_invalid_field(ctsio, /*sks_valid*/ 1, 5649 /*command*/ 1, /*field*/ 1, /*bit_valid*/ 1, /*bit*/ 0); 5650 ctl_done((union ctl_io *)ctsio); 5651 return (CTL_RETVAL_COMPLETE); 5652 } 5653 5654 /* 5655 * The first check is to make sure we're in bounds, the second 5656 * check is to catch wrap-around problems. If the lba + num blocks 5657 * is less than the lba, then we've wrapped around and the block 5658 * range is invalid anyway. 5659 */ 5660 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 5661 || ((lba + num_blocks) < lba)) { 5662 ctl_set_lba_out_of_range(ctsio); 5663 ctl_done((union ctl_io *)ctsio); 5664 return (CTL_RETVAL_COMPLETE); 5665 } 5666 5667 /* Zero number of blocks means "to the last logical block" */ 5668 if (num_blocks == 0) { 5669 if ((lun->be_lun->maxlba + 1) - lba > UINT32_MAX) { 5670 ctl_set_invalid_field(ctsio, 5671 /*sks_valid*/ 0, 5672 /*command*/ 1, 5673 /*field*/ 0, 5674 /*bit_valid*/ 0, 5675 /*bit*/ 0); 5676 ctl_done((union ctl_io *)ctsio); 5677 return (CTL_RETVAL_COMPLETE); 5678 } 5679 num_blocks = (lun->be_lun->maxlba + 1) - lba; 5680 } 5681 5682 len = lun->be_lun->blocksize; 5683 5684 /* 5685 * If we've got a kernel request that hasn't been malloced yet, 5686 * malloc it and tell the caller the data buffer is here. 5687 */ 5688 if ((byte2 & SWS_NDOB) == 0 && 5689 (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 5690 ctsio->kern_data_ptr = malloc(len, M_CTL, M_WAITOK);; 5691 ctsio->kern_data_len = len; 5692 ctsio->kern_total_len = len; 5693 ctsio->kern_data_resid = 0; 5694 ctsio->kern_rel_offset = 0; 5695 ctsio->kern_sg_entries = 0; 5696 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5697 ctsio->be_move_done = ctl_config_move_done; 5698 ctl_datamove((union ctl_io *)ctsio); 5699 5700 return (CTL_RETVAL_COMPLETE); 5701 } 5702 5703 lbalen = (struct ctl_lba_len_flags *)&ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 5704 lbalen->lba = lba; 5705 lbalen->len = num_blocks; 5706 lbalen->flags = byte2; 5707 retval = lun->backend->config_write((union ctl_io *)ctsio); 5708 5709 return (retval); 5710} 5711 5712int 5713ctl_unmap(struct ctl_scsiio *ctsio) 5714{ 5715 struct ctl_lun *lun; 5716 struct scsi_unmap *cdb; 5717 struct ctl_ptr_len_flags *ptrlen; 5718 struct scsi_unmap_header *hdr; 5719 struct scsi_unmap_desc *buf, *end, *endnz, *range; 5720 uint64_t lba; 5721 uint32_t num_blocks; 5722 int len, retval; 5723 uint8_t byte2; 5724 5725 CTL_DEBUG_PRINT(("ctl_unmap\n")); 5726 5727 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5728 cdb = (struct scsi_unmap *)ctsio->cdb; 5729 5730 len = scsi_2btoul(cdb->length); 5731 byte2 = cdb->byte2; 5732 5733 /* 5734 * If we've got a kernel request that hasn't been malloced yet, 5735 * malloc it and tell the caller the data buffer is here. 5736 */ 5737 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 5738 ctsio->kern_data_ptr = malloc(len, M_CTL, M_WAITOK);; 5739 ctsio->kern_data_len = len; 5740 ctsio->kern_total_len = len; 5741 ctsio->kern_data_resid = 0; 5742 ctsio->kern_rel_offset = 0; 5743 ctsio->kern_sg_entries = 0; 5744 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5745 ctsio->be_move_done = ctl_config_move_done; 5746 ctl_datamove((union ctl_io *)ctsio); 5747 5748 return (CTL_RETVAL_COMPLETE); 5749 } 5750 5751 len = ctsio->kern_total_len - ctsio->kern_data_resid; 5752 hdr = (struct scsi_unmap_header *)ctsio->kern_data_ptr; 5753 if (len < sizeof (*hdr) || 5754 len < (scsi_2btoul(hdr->length) + sizeof(hdr->length)) || 5755 len < (scsi_2btoul(hdr->desc_length) + sizeof (*hdr)) || 5756 scsi_2btoul(hdr->desc_length) % sizeof(*buf) != 0) { 5757 ctl_set_invalid_field(ctsio, 5758 /*sks_valid*/ 0, 5759 /*command*/ 0, 5760 /*field*/ 0, 5761 /*bit_valid*/ 0, 5762 /*bit*/ 0); 5763 goto done; 5764 } 5765 len = scsi_2btoul(hdr->desc_length); 5766 buf = (struct scsi_unmap_desc *)(hdr + 1); 5767 end = buf + len / sizeof(*buf); 5768 5769 endnz = buf; 5770 for (range = buf; range < end; range++) { 5771 lba = scsi_8btou64(range->lba); 5772 num_blocks = scsi_4btoul(range->length); 5773 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 5774 || ((lba + num_blocks) < lba)) { 5775 ctl_set_lba_out_of_range(ctsio); 5776 ctl_done((union ctl_io *)ctsio); 5777 return (CTL_RETVAL_COMPLETE); 5778 } 5779 if (num_blocks != 0) 5780 endnz = range + 1; 5781 } 5782 5783 /* 5784 * Block backend can not handle zero last range. 5785 * Filter it out and return if there is nothing left. 5786 */ 5787 len = (uint8_t *)endnz - (uint8_t *)buf; 5788 if (len == 0) { 5789 ctl_set_success(ctsio); 5790 goto done; 5791 } 5792 5793 mtx_lock(&lun->lun_lock); 5794 ptrlen = (struct ctl_ptr_len_flags *) 5795 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 5796 ptrlen->ptr = (void *)buf; 5797 ptrlen->len = len; 5798 ptrlen->flags = byte2; 5799 ctl_check_blocked(lun); 5800 mtx_unlock(&lun->lun_lock); 5801 5802 retval = lun->backend->config_write((union ctl_io *)ctsio); 5803 return (retval); 5804 5805done: 5806 if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) { 5807 free(ctsio->kern_data_ptr, M_CTL); 5808 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED; 5809 } 5810 ctl_done((union ctl_io *)ctsio); 5811 return (CTL_RETVAL_COMPLETE); 5812} 5813 5814/* 5815 * Note that this function currently doesn't actually do anything inside 5816 * CTL to enforce things if the DQue bit is turned on. 5817 * 5818 * Also note that this function can't be used in the default case, because 5819 * the DQue bit isn't set in the changeable mask for the control mode page 5820 * anyway. This is just here as an example for how to implement a page 5821 * handler, and a placeholder in case we want to allow the user to turn 5822 * tagged queueing on and off. 5823 * 5824 * The D_SENSE bit handling is functional, however, and will turn 5825 * descriptor sense on and off for a given LUN. 5826 */ 5827int 5828ctl_control_page_handler(struct ctl_scsiio *ctsio, 5829 struct ctl_page_index *page_index, uint8_t *page_ptr) 5830{ 5831 struct scsi_control_page *current_cp, *saved_cp, *user_cp; 5832 struct ctl_lun *lun; 5833 int set_ua; 5834 uint32_t initidx; 5835 5836 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5837 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 5838 set_ua = 0; 5839 5840 user_cp = (struct scsi_control_page *)page_ptr; 5841 current_cp = (struct scsi_control_page *) 5842 (page_index->page_data + (page_index->page_len * 5843 CTL_PAGE_CURRENT)); 5844 saved_cp = (struct scsi_control_page *) 5845 (page_index->page_data + (page_index->page_len * 5846 CTL_PAGE_SAVED)); 5847 5848 mtx_lock(&lun->lun_lock); 5849 if (((current_cp->rlec & SCP_DSENSE) == 0) 5850 && ((user_cp->rlec & SCP_DSENSE) != 0)) { 5851 /* 5852 * Descriptor sense is currently turned off and the user 5853 * wants to turn it on. 5854 */ 5855 current_cp->rlec |= SCP_DSENSE; 5856 saved_cp->rlec |= SCP_DSENSE; 5857 lun->flags |= CTL_LUN_SENSE_DESC; 5858 set_ua = 1; 5859 } else if (((current_cp->rlec & SCP_DSENSE) != 0) 5860 && ((user_cp->rlec & SCP_DSENSE) == 0)) { 5861 /* 5862 * Descriptor sense is currently turned on, and the user 5863 * wants to turn it off. 5864 */ 5865 current_cp->rlec &= ~SCP_DSENSE; 5866 saved_cp->rlec &= ~SCP_DSENSE; 5867 lun->flags &= ~CTL_LUN_SENSE_DESC; 5868 set_ua = 1; 5869 } 5870 if ((current_cp->queue_flags & SCP_QUEUE_ALG_MASK) != 5871 (user_cp->queue_flags & SCP_QUEUE_ALG_MASK)) { 5872 current_cp->queue_flags &= ~SCP_QUEUE_ALG_MASK; 5873 current_cp->queue_flags |= user_cp->queue_flags & SCP_QUEUE_ALG_MASK; 5874 saved_cp->queue_flags &= ~SCP_QUEUE_ALG_MASK; 5875 saved_cp->queue_flags |= user_cp->queue_flags & SCP_QUEUE_ALG_MASK; 5876 set_ua = 1; 5877 } 5878 if ((current_cp->eca_and_aen & SCP_SWP) != 5879 (user_cp->eca_and_aen & SCP_SWP)) { 5880 current_cp->eca_and_aen &= ~SCP_SWP; 5881 current_cp->eca_and_aen |= user_cp->eca_and_aen & SCP_SWP; 5882 saved_cp->eca_and_aen &= ~SCP_SWP; 5883 saved_cp->eca_and_aen |= user_cp->eca_and_aen & SCP_SWP; 5884 set_ua = 1; 5885 } 5886 if (set_ua != 0) 5887 ctl_est_ua_all(lun, initidx, CTL_UA_MODE_CHANGE); 5888 mtx_unlock(&lun->lun_lock); 5889 if (set_ua) { 5890 ctl_isc_announce_mode(lun, 5891 ctl_get_initindex(&ctsio->io_hdr.nexus), 5892 page_index->page_code, page_index->subpage); 5893 } 5894 return (0); 5895} 5896 5897int 5898ctl_caching_sp_handler(struct ctl_scsiio *ctsio, 5899 struct ctl_page_index *page_index, uint8_t *page_ptr) 5900{ 5901 struct scsi_caching_page *current_cp, *saved_cp, *user_cp; 5902 struct ctl_lun *lun; 5903 int set_ua; 5904 uint32_t initidx; 5905 5906 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5907 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 5908 set_ua = 0; 5909 5910 user_cp = (struct scsi_caching_page *)page_ptr; 5911 current_cp = (struct scsi_caching_page *) 5912 (page_index->page_data + (page_index->page_len * 5913 CTL_PAGE_CURRENT)); 5914 saved_cp = (struct scsi_caching_page *) 5915 (page_index->page_data + (page_index->page_len * 5916 CTL_PAGE_SAVED)); 5917 5918 mtx_lock(&lun->lun_lock); 5919 if ((current_cp->flags1 & (SCP_WCE | SCP_RCD)) != 5920 (user_cp->flags1 & (SCP_WCE | SCP_RCD))) { 5921 current_cp->flags1 &= ~(SCP_WCE | SCP_RCD); 5922 current_cp->flags1 |= user_cp->flags1 & (SCP_WCE | SCP_RCD); 5923 saved_cp->flags1 &= ~(SCP_WCE | SCP_RCD); 5924 saved_cp->flags1 |= user_cp->flags1 & (SCP_WCE | SCP_RCD); 5925 set_ua = 1; 5926 } 5927 if (set_ua != 0) 5928 ctl_est_ua_all(lun, initidx, CTL_UA_MODE_CHANGE); 5929 mtx_unlock(&lun->lun_lock); 5930 if (set_ua) { 5931 ctl_isc_announce_mode(lun, 5932 ctl_get_initindex(&ctsio->io_hdr.nexus), 5933 page_index->page_code, page_index->subpage); 5934 } 5935 return (0); 5936} 5937 5938int 5939ctl_debugconf_sp_select_handler(struct ctl_scsiio *ctsio, 5940 struct ctl_page_index *page_index, 5941 uint8_t *page_ptr) 5942{ 5943 uint8_t *c; 5944 int i; 5945 5946 c = ((struct copan_debugconf_subpage *)page_ptr)->ctl_time_io_secs; 5947 ctl_time_io_secs = 5948 (c[0] << 8) | 5949 (c[1] << 0) | 5950 0; 5951 CTL_DEBUG_PRINT(("set ctl_time_io_secs to %d\n", ctl_time_io_secs)); 5952 printf("set ctl_time_io_secs to %d\n", ctl_time_io_secs); 5953 printf("page data:"); 5954 for (i=0; i<8; i++) 5955 printf(" %.2x",page_ptr[i]); 5956 printf("\n"); 5957 return (0); 5958} 5959 5960int 5961ctl_debugconf_sp_sense_handler(struct ctl_scsiio *ctsio, 5962 struct ctl_page_index *page_index, 5963 int pc) 5964{ 5965 struct copan_debugconf_subpage *page; 5966 5967 page = (struct copan_debugconf_subpage *)page_index->page_data + 5968 (page_index->page_len * pc); 5969 5970 switch (pc) { 5971 case SMS_PAGE_CTRL_CHANGEABLE >> 6: 5972 case SMS_PAGE_CTRL_DEFAULT >> 6: 5973 case SMS_PAGE_CTRL_SAVED >> 6: 5974 /* 5975 * We don't update the changable or default bits for this page. 5976 */ 5977 break; 5978 case SMS_PAGE_CTRL_CURRENT >> 6: 5979 page->ctl_time_io_secs[0] = ctl_time_io_secs >> 8; 5980 page->ctl_time_io_secs[1] = ctl_time_io_secs >> 0; 5981 break; 5982 default: 5983 break; 5984 } 5985 return (0); 5986} 5987 5988 5989static int 5990ctl_do_mode_select(union ctl_io *io) 5991{ 5992 struct scsi_mode_page_header *page_header; 5993 struct ctl_page_index *page_index; 5994 struct ctl_scsiio *ctsio; 5995 int page_len, page_len_offset, page_len_size; 5996 union ctl_modepage_info *modepage_info; 5997 struct ctl_lun *lun; 5998 int *len_left, *len_used; 5999 int retval, i; 6000 6001 ctsio = &io->scsiio; 6002 page_index = NULL; 6003 page_len = 0; 6004 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6005 6006 modepage_info = (union ctl_modepage_info *) 6007 ctsio->io_hdr.ctl_private[CTL_PRIV_MODEPAGE].bytes; 6008 len_left = &modepage_info->header.len_left; 6009 len_used = &modepage_info->header.len_used; 6010 6011do_next_page: 6012 6013 page_header = (struct scsi_mode_page_header *) 6014 (ctsio->kern_data_ptr + *len_used); 6015 6016 if (*len_left == 0) { 6017 free(ctsio->kern_data_ptr, M_CTL); 6018 ctl_set_success(ctsio); 6019 ctl_done((union ctl_io *)ctsio); 6020 return (CTL_RETVAL_COMPLETE); 6021 } else if (*len_left < sizeof(struct scsi_mode_page_header)) { 6022 6023 free(ctsio->kern_data_ptr, M_CTL); 6024 ctl_set_param_len_error(ctsio); 6025 ctl_done((union ctl_io *)ctsio); 6026 return (CTL_RETVAL_COMPLETE); 6027 6028 } else if ((page_header->page_code & SMPH_SPF) 6029 && (*len_left < sizeof(struct scsi_mode_page_header_sp))) { 6030 6031 free(ctsio->kern_data_ptr, M_CTL); 6032 ctl_set_param_len_error(ctsio); 6033 ctl_done((union ctl_io *)ctsio); 6034 return (CTL_RETVAL_COMPLETE); 6035 } 6036 6037 6038 /* 6039 * XXX KDM should we do something with the block descriptor? 6040 */ 6041 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6042 page_index = &lun->mode_pages.index[i]; 6043 if (lun->be_lun->lun_type == T_DIRECT && 6044 (page_index->page_flags & CTL_PAGE_FLAG_DIRECT) == 0) 6045 continue; 6046 if (lun->be_lun->lun_type == T_PROCESSOR && 6047 (page_index->page_flags & CTL_PAGE_FLAG_PROC) == 0) 6048 continue; 6049 if (lun->be_lun->lun_type == T_CDROM && 6050 (page_index->page_flags & CTL_PAGE_FLAG_CDROM) == 0) 6051 continue; 6052 6053 if ((page_index->page_code & SMPH_PC_MASK) != 6054 (page_header->page_code & SMPH_PC_MASK)) 6055 continue; 6056 6057 /* 6058 * If neither page has a subpage code, then we've got a 6059 * match. 6060 */ 6061 if (((page_index->page_code & SMPH_SPF) == 0) 6062 && ((page_header->page_code & SMPH_SPF) == 0)) { 6063 page_len = page_header->page_length; 6064 break; 6065 } 6066 6067 /* 6068 * If both pages have subpages, then the subpage numbers 6069 * have to match. 6070 */ 6071 if ((page_index->page_code & SMPH_SPF) 6072 && (page_header->page_code & SMPH_SPF)) { 6073 struct scsi_mode_page_header_sp *sph; 6074 6075 sph = (struct scsi_mode_page_header_sp *)page_header; 6076 if (page_index->subpage == sph->subpage) { 6077 page_len = scsi_2btoul(sph->page_length); 6078 break; 6079 } 6080 } 6081 } 6082 6083 /* 6084 * If we couldn't find the page, or if we don't have a mode select 6085 * handler for it, send back an error to the user. 6086 */ 6087 if ((i >= CTL_NUM_MODE_PAGES) 6088 || (page_index->select_handler == NULL)) { 6089 ctl_set_invalid_field(ctsio, 6090 /*sks_valid*/ 1, 6091 /*command*/ 0, 6092 /*field*/ *len_used, 6093 /*bit_valid*/ 0, 6094 /*bit*/ 0); 6095 free(ctsio->kern_data_ptr, M_CTL); 6096 ctl_done((union ctl_io *)ctsio); 6097 return (CTL_RETVAL_COMPLETE); 6098 } 6099 6100 if (page_index->page_code & SMPH_SPF) { 6101 page_len_offset = 2; 6102 page_len_size = 2; 6103 } else { 6104 page_len_size = 1; 6105 page_len_offset = 1; 6106 } 6107 6108 /* 6109 * If the length the initiator gives us isn't the one we specify in 6110 * the mode page header, or if they didn't specify enough data in 6111 * the CDB to avoid truncating this page, kick out the request. 6112 */ 6113 if ((page_len != (page_index->page_len - page_len_offset - 6114 page_len_size)) 6115 || (*len_left < page_index->page_len)) { 6116 6117 6118 ctl_set_invalid_field(ctsio, 6119 /*sks_valid*/ 1, 6120 /*command*/ 0, 6121 /*field*/ *len_used + page_len_offset, 6122 /*bit_valid*/ 0, 6123 /*bit*/ 0); 6124 free(ctsio->kern_data_ptr, M_CTL); 6125 ctl_done((union ctl_io *)ctsio); 6126 return (CTL_RETVAL_COMPLETE); 6127 } 6128 6129 /* 6130 * Run through the mode page, checking to make sure that the bits 6131 * the user changed are actually legal for him to change. 6132 */ 6133 for (i = 0; i < page_index->page_len; i++) { 6134 uint8_t *user_byte, *change_mask, *current_byte; 6135 int bad_bit; 6136 int j; 6137 6138 user_byte = (uint8_t *)page_header + i; 6139 change_mask = page_index->page_data + 6140 (page_index->page_len * CTL_PAGE_CHANGEABLE) + i; 6141 current_byte = page_index->page_data + 6142 (page_index->page_len * CTL_PAGE_CURRENT) + i; 6143 6144 /* 6145 * Check to see whether the user set any bits in this byte 6146 * that he is not allowed to set. 6147 */ 6148 if ((*user_byte & ~(*change_mask)) == 6149 (*current_byte & ~(*change_mask))) 6150 continue; 6151 6152 /* 6153 * Go through bit by bit to determine which one is illegal. 6154 */ 6155 bad_bit = 0; 6156 for (j = 7; j >= 0; j--) { 6157 if ((((1 << i) & ~(*change_mask)) & *user_byte) != 6158 (((1 << i) & ~(*change_mask)) & *current_byte)) { 6159 bad_bit = i; 6160 break; 6161 } 6162 } 6163 ctl_set_invalid_field(ctsio, 6164 /*sks_valid*/ 1, 6165 /*command*/ 0, 6166 /*field*/ *len_used + i, 6167 /*bit_valid*/ 1, 6168 /*bit*/ bad_bit); 6169 free(ctsio->kern_data_ptr, M_CTL); 6170 ctl_done((union ctl_io *)ctsio); 6171 return (CTL_RETVAL_COMPLETE); 6172 } 6173 6174 /* 6175 * Decrement these before we call the page handler, since we may 6176 * end up getting called back one way or another before the handler 6177 * returns to this context. 6178 */ 6179 *len_left -= page_index->page_len; 6180 *len_used += page_index->page_len; 6181 6182 retval = page_index->select_handler(ctsio, page_index, 6183 (uint8_t *)page_header); 6184 6185 /* 6186 * If the page handler returns CTL_RETVAL_QUEUED, then we need to 6187 * wait until this queued command completes to finish processing 6188 * the mode page. If it returns anything other than 6189 * CTL_RETVAL_COMPLETE (e.g. CTL_RETVAL_ERROR), then it should have 6190 * already set the sense information, freed the data pointer, and 6191 * completed the io for us. 6192 */ 6193 if (retval != CTL_RETVAL_COMPLETE) 6194 goto bailout_no_done; 6195 6196 /* 6197 * If the initiator sent us more than one page, parse the next one. 6198 */ 6199 if (*len_left > 0) 6200 goto do_next_page; 6201 6202 ctl_set_success(ctsio); 6203 free(ctsio->kern_data_ptr, M_CTL); 6204 ctl_done((union ctl_io *)ctsio); 6205 6206bailout_no_done: 6207 6208 return (CTL_RETVAL_COMPLETE); 6209 6210} 6211 6212int 6213ctl_mode_select(struct ctl_scsiio *ctsio) 6214{ 6215 int param_len, pf, sp; 6216 int header_size, bd_len; 6217 union ctl_modepage_info *modepage_info; 6218 6219 switch (ctsio->cdb[0]) { 6220 case MODE_SELECT_6: { 6221 struct scsi_mode_select_6 *cdb; 6222 6223 cdb = (struct scsi_mode_select_6 *)ctsio->cdb; 6224 6225 pf = (cdb->byte2 & SMS_PF) ? 1 : 0; 6226 sp = (cdb->byte2 & SMS_SP) ? 1 : 0; 6227 param_len = cdb->length; 6228 header_size = sizeof(struct scsi_mode_header_6); 6229 break; 6230 } 6231 case MODE_SELECT_10: { 6232 struct scsi_mode_select_10 *cdb; 6233 6234 cdb = (struct scsi_mode_select_10 *)ctsio->cdb; 6235 6236 pf = (cdb->byte2 & SMS_PF) ? 1 : 0; 6237 sp = (cdb->byte2 & SMS_SP) ? 1 : 0; 6238 param_len = scsi_2btoul(cdb->length); 6239 header_size = sizeof(struct scsi_mode_header_10); 6240 break; 6241 } 6242 default: 6243 ctl_set_invalid_opcode(ctsio); 6244 ctl_done((union ctl_io *)ctsio); 6245 return (CTL_RETVAL_COMPLETE); 6246 } 6247 6248 /* 6249 * From SPC-3: 6250 * "A parameter list length of zero indicates that the Data-Out Buffer 6251 * shall be empty. This condition shall not be considered as an error." 6252 */ 6253 if (param_len == 0) { 6254 ctl_set_success(ctsio); 6255 ctl_done((union ctl_io *)ctsio); 6256 return (CTL_RETVAL_COMPLETE); 6257 } 6258 6259 /* 6260 * Since we'll hit this the first time through, prior to 6261 * allocation, we don't need to free a data buffer here. 6262 */ 6263 if (param_len < header_size) { 6264 ctl_set_param_len_error(ctsio); 6265 ctl_done((union ctl_io *)ctsio); 6266 return (CTL_RETVAL_COMPLETE); 6267 } 6268 6269 /* 6270 * Allocate the data buffer and grab the user's data. In theory, 6271 * we shouldn't have to sanity check the parameter list length here 6272 * because the maximum size is 64K. We should be able to malloc 6273 * that much without too many problems. 6274 */ 6275 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 6276 ctsio->kern_data_ptr = malloc(param_len, M_CTL, M_WAITOK); 6277 ctsio->kern_data_len = param_len; 6278 ctsio->kern_total_len = param_len; 6279 ctsio->kern_data_resid = 0; 6280 ctsio->kern_rel_offset = 0; 6281 ctsio->kern_sg_entries = 0; 6282 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6283 ctsio->be_move_done = ctl_config_move_done; 6284 ctl_datamove((union ctl_io *)ctsio); 6285 6286 return (CTL_RETVAL_COMPLETE); 6287 } 6288 6289 switch (ctsio->cdb[0]) { 6290 case MODE_SELECT_6: { 6291 struct scsi_mode_header_6 *mh6; 6292 6293 mh6 = (struct scsi_mode_header_6 *)ctsio->kern_data_ptr; 6294 bd_len = mh6->blk_desc_len; 6295 break; 6296 } 6297 case MODE_SELECT_10: { 6298 struct scsi_mode_header_10 *mh10; 6299 6300 mh10 = (struct scsi_mode_header_10 *)ctsio->kern_data_ptr; 6301 bd_len = scsi_2btoul(mh10->blk_desc_len); 6302 break; 6303 } 6304 default: 6305 panic("%s: Invalid CDB type %#x", __func__, ctsio->cdb[0]); 6306 } 6307 6308 if (param_len < (header_size + bd_len)) { 6309 free(ctsio->kern_data_ptr, M_CTL); 6310 ctl_set_param_len_error(ctsio); 6311 ctl_done((union ctl_io *)ctsio); 6312 return (CTL_RETVAL_COMPLETE); 6313 } 6314 6315 /* 6316 * Set the IO_CONT flag, so that if this I/O gets passed to 6317 * ctl_config_write_done(), it'll get passed back to 6318 * ctl_do_mode_select() for further processing, or completion if 6319 * we're all done. 6320 */ 6321 ctsio->io_hdr.flags |= CTL_FLAG_IO_CONT; 6322 ctsio->io_cont = ctl_do_mode_select; 6323 6324 modepage_info = (union ctl_modepage_info *) 6325 ctsio->io_hdr.ctl_private[CTL_PRIV_MODEPAGE].bytes; 6326 memset(modepage_info, 0, sizeof(*modepage_info)); 6327 modepage_info->header.len_left = param_len - header_size - bd_len; 6328 modepage_info->header.len_used = header_size + bd_len; 6329 6330 return (ctl_do_mode_select((union ctl_io *)ctsio)); 6331} 6332 6333int 6334ctl_mode_sense(struct ctl_scsiio *ctsio) 6335{ 6336 struct ctl_lun *lun; 6337 int pc, page_code, dbd, llba, subpage; 6338 int alloc_len, page_len, header_len, total_len; 6339 struct scsi_mode_block_descr *block_desc; 6340 struct ctl_page_index *page_index; 6341 6342 dbd = 0; 6343 llba = 0; 6344 block_desc = NULL; 6345 6346 CTL_DEBUG_PRINT(("ctl_mode_sense\n")); 6347 6348 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6349 switch (ctsio->cdb[0]) { 6350 case MODE_SENSE_6: { 6351 struct scsi_mode_sense_6 *cdb; 6352 6353 cdb = (struct scsi_mode_sense_6 *)ctsio->cdb; 6354 6355 header_len = sizeof(struct scsi_mode_hdr_6); 6356 if (cdb->byte2 & SMS_DBD) 6357 dbd = 1; 6358 else 6359 header_len += sizeof(struct scsi_mode_block_descr); 6360 6361 pc = (cdb->page & SMS_PAGE_CTRL_MASK) >> 6; 6362 page_code = cdb->page & SMS_PAGE_CODE; 6363 subpage = cdb->subpage; 6364 alloc_len = cdb->length; 6365 break; 6366 } 6367 case MODE_SENSE_10: { 6368 struct scsi_mode_sense_10 *cdb; 6369 6370 cdb = (struct scsi_mode_sense_10 *)ctsio->cdb; 6371 6372 header_len = sizeof(struct scsi_mode_hdr_10); 6373 6374 if (cdb->byte2 & SMS_DBD) 6375 dbd = 1; 6376 else 6377 header_len += sizeof(struct scsi_mode_block_descr); 6378 if (cdb->byte2 & SMS10_LLBAA) 6379 llba = 1; 6380 pc = (cdb->page & SMS_PAGE_CTRL_MASK) >> 6; 6381 page_code = cdb->page & SMS_PAGE_CODE; 6382 subpage = cdb->subpage; 6383 alloc_len = scsi_2btoul(cdb->length); 6384 break; 6385 } 6386 default: 6387 ctl_set_invalid_opcode(ctsio); 6388 ctl_done((union ctl_io *)ctsio); 6389 return (CTL_RETVAL_COMPLETE); 6390 break; /* NOTREACHED */ 6391 } 6392 6393 /* 6394 * We have to make a first pass through to calculate the size of 6395 * the pages that match the user's query. Then we allocate enough 6396 * memory to hold it, and actually copy the data into the buffer. 6397 */ 6398 switch (page_code) { 6399 case SMS_ALL_PAGES_PAGE: { 6400 int i; 6401 6402 page_len = 0; 6403 6404 /* 6405 * At the moment, values other than 0 and 0xff here are 6406 * reserved according to SPC-3. 6407 */ 6408 if ((subpage != SMS_SUBPAGE_PAGE_0) 6409 && (subpage != SMS_SUBPAGE_ALL)) { 6410 ctl_set_invalid_field(ctsio, 6411 /*sks_valid*/ 1, 6412 /*command*/ 1, 6413 /*field*/ 3, 6414 /*bit_valid*/ 0, 6415 /*bit*/ 0); 6416 ctl_done((union ctl_io *)ctsio); 6417 return (CTL_RETVAL_COMPLETE); 6418 } 6419 6420 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6421 page_index = &lun->mode_pages.index[i]; 6422 6423 /* Make sure the page is supported for this dev type */ 6424 if (lun->be_lun->lun_type == T_DIRECT && 6425 (page_index->page_flags & CTL_PAGE_FLAG_DIRECT) == 0) 6426 continue; 6427 if (lun->be_lun->lun_type == T_PROCESSOR && 6428 (page_index->page_flags & CTL_PAGE_FLAG_PROC) == 0) 6429 continue; 6430 if (lun->be_lun->lun_type == T_CDROM && 6431 (page_index->page_flags & CTL_PAGE_FLAG_CDROM) == 0) 6432 continue; 6433 6434 /* 6435 * We don't use this subpage if the user didn't 6436 * request all subpages. 6437 */ 6438 if ((page_index->subpage != 0) 6439 && (subpage == SMS_SUBPAGE_PAGE_0)) 6440 continue; 6441 6442#if 0 6443 printf("found page %#x len %d\n", 6444 page_index->page_code & SMPH_PC_MASK, 6445 page_index->page_len); 6446#endif 6447 page_len += page_index->page_len; 6448 } 6449 break; 6450 } 6451 default: { 6452 int i; 6453 6454 page_len = 0; 6455 6456 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6457 page_index = &lun->mode_pages.index[i]; 6458 6459 /* Make sure the page is supported for this dev type */ 6460 if (lun->be_lun->lun_type == T_DIRECT && 6461 (page_index->page_flags & CTL_PAGE_FLAG_DIRECT) == 0) 6462 continue; 6463 if (lun->be_lun->lun_type == T_PROCESSOR && 6464 (page_index->page_flags & CTL_PAGE_FLAG_PROC) == 0) 6465 continue; 6466 if (lun->be_lun->lun_type == T_CDROM && 6467 (page_index->page_flags & CTL_PAGE_FLAG_CDROM) == 0) 6468 continue; 6469 6470 /* Look for the right page code */ 6471 if ((page_index->page_code & SMPH_PC_MASK) != page_code) 6472 continue; 6473 6474 /* Look for the right subpage or the subpage wildcard*/ 6475 if ((page_index->subpage != subpage) 6476 && (subpage != SMS_SUBPAGE_ALL)) 6477 continue; 6478 6479#if 0 6480 printf("found page %#x len %d\n", 6481 page_index->page_code & SMPH_PC_MASK, 6482 page_index->page_len); 6483#endif 6484 6485 page_len += page_index->page_len; 6486 } 6487 6488 if (page_len == 0) { 6489 ctl_set_invalid_field(ctsio, 6490 /*sks_valid*/ 1, 6491 /*command*/ 1, 6492 /*field*/ 2, 6493 /*bit_valid*/ 1, 6494 /*bit*/ 5); 6495 ctl_done((union ctl_io *)ctsio); 6496 return (CTL_RETVAL_COMPLETE); 6497 } 6498 break; 6499 } 6500 } 6501 6502 total_len = header_len + page_len; 6503#if 0 6504 printf("header_len = %d, page_len = %d, total_len = %d\n", 6505 header_len, page_len, total_len); 6506#endif 6507 6508 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 6509 ctsio->kern_sg_entries = 0; 6510 ctsio->kern_data_resid = 0; 6511 ctsio->kern_rel_offset = 0; 6512 if (total_len < alloc_len) { 6513 ctsio->residual = alloc_len - total_len; 6514 ctsio->kern_data_len = total_len; 6515 ctsio->kern_total_len = total_len; 6516 } else { 6517 ctsio->residual = 0; 6518 ctsio->kern_data_len = alloc_len; 6519 ctsio->kern_total_len = alloc_len; 6520 } 6521 6522 switch (ctsio->cdb[0]) { 6523 case MODE_SENSE_6: { 6524 struct scsi_mode_hdr_6 *header; 6525 6526 header = (struct scsi_mode_hdr_6 *)ctsio->kern_data_ptr; 6527 6528 header->datalen = MIN(total_len - 1, 254); 6529 if (lun->be_lun->lun_type == T_DIRECT) { 6530 header->dev_specific = 0x10; /* DPOFUA */ 6531 if ((lun->be_lun->flags & CTL_LUN_FLAG_READONLY) || 6532 (lun->mode_pages.control_page[CTL_PAGE_CURRENT] 6533 .eca_and_aen & SCP_SWP) != 0) 6534 header->dev_specific |= 0x80; /* WP */ 6535 } 6536 if (dbd) 6537 header->block_descr_len = 0; 6538 else 6539 header->block_descr_len = 6540 sizeof(struct scsi_mode_block_descr); 6541 block_desc = (struct scsi_mode_block_descr *)&header[1]; 6542 break; 6543 } 6544 case MODE_SENSE_10: { 6545 struct scsi_mode_hdr_10 *header; 6546 int datalen; 6547 6548 header = (struct scsi_mode_hdr_10 *)ctsio->kern_data_ptr; 6549 6550 datalen = MIN(total_len - 2, 65533); 6551 scsi_ulto2b(datalen, header->datalen); 6552 if (lun->be_lun->lun_type == T_DIRECT) { 6553 header->dev_specific = 0x10; /* DPOFUA */ 6554 if ((lun->be_lun->flags & CTL_LUN_FLAG_READONLY) || 6555 (lun->mode_pages.control_page[CTL_PAGE_CURRENT] 6556 .eca_and_aen & SCP_SWP) != 0) 6557 header->dev_specific |= 0x80; /* WP */ 6558 } 6559 if (dbd) 6560 scsi_ulto2b(0, header->block_descr_len); 6561 else 6562 scsi_ulto2b(sizeof(struct scsi_mode_block_descr), 6563 header->block_descr_len); 6564 block_desc = (struct scsi_mode_block_descr *)&header[1]; 6565 break; 6566 } 6567 default: 6568 panic("%s: Invalid CDB type %#x", __func__, ctsio->cdb[0]); 6569 } 6570 6571 /* 6572 * If we've got a disk, use its blocksize in the block 6573 * descriptor. Otherwise, just set it to 0. 6574 */ 6575 if (dbd == 0) { 6576 if (lun->be_lun->lun_type == T_DIRECT) 6577 scsi_ulto3b(lun->be_lun->blocksize, 6578 block_desc->block_len); 6579 else 6580 scsi_ulto3b(0, block_desc->block_len); 6581 } 6582 6583 switch (page_code) { 6584 case SMS_ALL_PAGES_PAGE: { 6585 int i, data_used; 6586 6587 data_used = header_len; 6588 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6589 struct ctl_page_index *page_index; 6590 6591 page_index = &lun->mode_pages.index[i]; 6592 if (lun->be_lun->lun_type == T_DIRECT && 6593 (page_index->page_flags & CTL_PAGE_FLAG_DIRECT) == 0) 6594 continue; 6595 if (lun->be_lun->lun_type == T_PROCESSOR && 6596 (page_index->page_flags & CTL_PAGE_FLAG_PROC) == 0) 6597 continue; 6598 if (lun->be_lun->lun_type == T_CDROM && 6599 (page_index->page_flags & CTL_PAGE_FLAG_CDROM) == 0) 6600 continue; 6601 6602 /* 6603 * We don't use this subpage if the user didn't 6604 * request all subpages. We already checked (above) 6605 * to make sure the user only specified a subpage 6606 * of 0 or 0xff in the SMS_ALL_PAGES_PAGE case. 6607 */ 6608 if ((page_index->subpage != 0) 6609 && (subpage == SMS_SUBPAGE_PAGE_0)) 6610 continue; 6611 6612 /* 6613 * Call the handler, if it exists, to update the 6614 * page to the latest values. 6615 */ 6616 if (page_index->sense_handler != NULL) 6617 page_index->sense_handler(ctsio, page_index,pc); 6618 6619 memcpy(ctsio->kern_data_ptr + data_used, 6620 page_index->page_data + 6621 (page_index->page_len * pc), 6622 page_index->page_len); 6623 data_used += page_index->page_len; 6624 } 6625 break; 6626 } 6627 default: { 6628 int i, data_used; 6629 6630 data_used = header_len; 6631 6632 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6633 struct ctl_page_index *page_index; 6634 6635 page_index = &lun->mode_pages.index[i]; 6636 6637 /* Look for the right page code */ 6638 if ((page_index->page_code & SMPH_PC_MASK) != page_code) 6639 continue; 6640 6641 /* Look for the right subpage or the subpage wildcard*/ 6642 if ((page_index->subpage != subpage) 6643 && (subpage != SMS_SUBPAGE_ALL)) 6644 continue; 6645 6646 /* Make sure the page is supported for this dev type */ 6647 if (lun->be_lun->lun_type == T_DIRECT && 6648 (page_index->page_flags & CTL_PAGE_FLAG_DIRECT) == 0) 6649 continue; 6650 if (lun->be_lun->lun_type == T_PROCESSOR && 6651 (page_index->page_flags & CTL_PAGE_FLAG_PROC) == 0) 6652 continue; 6653 if (lun->be_lun->lun_type == T_CDROM && 6654 (page_index->page_flags & CTL_PAGE_FLAG_CDROM) == 0) 6655 continue; 6656 6657 /* 6658 * Call the handler, if it exists, to update the 6659 * page to the latest values. 6660 */ 6661 if (page_index->sense_handler != NULL) 6662 page_index->sense_handler(ctsio, page_index,pc); 6663 6664 memcpy(ctsio->kern_data_ptr + data_used, 6665 page_index->page_data + 6666 (page_index->page_len * pc), 6667 page_index->page_len); 6668 data_used += page_index->page_len; 6669 } 6670 break; 6671 } 6672 } 6673 6674 ctl_set_success(ctsio); 6675 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6676 ctsio->be_move_done = ctl_config_move_done; 6677 ctl_datamove((union ctl_io *)ctsio); 6678 return (CTL_RETVAL_COMPLETE); 6679} 6680 6681int 6682ctl_lbp_log_sense_handler(struct ctl_scsiio *ctsio, 6683 struct ctl_page_index *page_index, 6684 int pc) 6685{ 6686 struct ctl_lun *lun; 6687 struct scsi_log_param_header *phdr; 6688 uint8_t *data; 6689 uint64_t val; 6690 6691 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6692 data = page_index->page_data; 6693 6694 if (lun->backend->lun_attr != NULL && 6695 (val = lun->backend->lun_attr(lun->be_lun->be_lun, "blocksavail")) 6696 != UINT64_MAX) { 6697 phdr = (struct scsi_log_param_header *)data; 6698 scsi_ulto2b(0x0001, phdr->param_code); 6699 phdr->param_control = SLP_LBIN | SLP_LP; 6700 phdr->param_len = 8; 6701 data = (uint8_t *)(phdr + 1); 6702 scsi_ulto4b(val >> CTL_LBP_EXPONENT, data); 6703 data[4] = 0x02; /* per-pool */ 6704 data += phdr->param_len; 6705 } 6706 6707 if (lun->backend->lun_attr != NULL && 6708 (val = lun->backend->lun_attr(lun->be_lun->be_lun, "blocksused")) 6709 != UINT64_MAX) { 6710 phdr = (struct scsi_log_param_header *)data; 6711 scsi_ulto2b(0x0002, phdr->param_code); 6712 phdr->param_control = SLP_LBIN | SLP_LP; 6713 phdr->param_len = 8; 6714 data = (uint8_t *)(phdr + 1); 6715 scsi_ulto4b(val >> CTL_LBP_EXPONENT, data); 6716 data[4] = 0x01; /* per-LUN */ 6717 data += phdr->param_len; 6718 } 6719 6720 if (lun->backend->lun_attr != NULL && 6721 (val = lun->backend->lun_attr(lun->be_lun->be_lun, "poolblocksavail")) 6722 != UINT64_MAX) { 6723 phdr = (struct scsi_log_param_header *)data; 6724 scsi_ulto2b(0x00f1, phdr->param_code); 6725 phdr->param_control = SLP_LBIN | SLP_LP; 6726 phdr->param_len = 8; 6727 data = (uint8_t *)(phdr + 1); 6728 scsi_ulto4b(val >> CTL_LBP_EXPONENT, data); 6729 data[4] = 0x02; /* per-pool */ 6730 data += phdr->param_len; 6731 } 6732 6733 if (lun->backend->lun_attr != NULL && 6734 (val = lun->backend->lun_attr(lun->be_lun->be_lun, "poolblocksused")) 6735 != UINT64_MAX) { 6736 phdr = (struct scsi_log_param_header *)data; 6737 scsi_ulto2b(0x00f2, phdr->param_code); 6738 phdr->param_control = SLP_LBIN | SLP_LP; 6739 phdr->param_len = 8; 6740 data = (uint8_t *)(phdr + 1); 6741 scsi_ulto4b(val >> CTL_LBP_EXPONENT, data); 6742 data[4] = 0x02; /* per-pool */ 6743 data += phdr->param_len; 6744 } 6745 6746 page_index->page_len = data - page_index->page_data; 6747 return (0); 6748} 6749 6750int 6751ctl_sap_log_sense_handler(struct ctl_scsiio *ctsio, 6752 struct ctl_page_index *page_index, 6753 int pc) 6754{ 6755 struct ctl_lun *lun; 6756 struct stat_page *data; 6757 uint64_t rn, wn, rb, wb; 6758 struct bintime rt, wt; 6759 int i; 6760 6761 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6762 data = (struct stat_page *)page_index->page_data; 6763 6764 scsi_ulto2b(SLP_SAP, data->sap.hdr.param_code); 6765 data->sap.hdr.param_control = SLP_LBIN; 6766 data->sap.hdr.param_len = sizeof(struct scsi_log_stat_and_perf) - 6767 sizeof(struct scsi_log_param_header); 6768 rn = wn = rb = wb = 0; 6769 bintime_clear(&rt); 6770 bintime_clear(&wt); 6771 for (i = 0; i < CTL_MAX_PORTS; i++) { 6772 rn += lun->stats.ports[i].operations[CTL_STATS_READ]; 6773 wn += lun->stats.ports[i].operations[CTL_STATS_WRITE]; 6774 rb += lun->stats.ports[i].bytes[CTL_STATS_READ]; 6775 wb += lun->stats.ports[i].bytes[CTL_STATS_WRITE]; 6776 bintime_add(&rt, &lun->stats.ports[i].time[CTL_STATS_READ]); 6777 bintime_add(&wt, &lun->stats.ports[i].time[CTL_STATS_WRITE]); 6778 } 6779 scsi_u64to8b(rn, data->sap.read_num); 6780 scsi_u64to8b(wn, data->sap.write_num); 6781 if (lun->stats.blocksize > 0) { 6782 scsi_u64to8b(wb / lun->stats.blocksize, 6783 data->sap.recvieved_lba); 6784 scsi_u64to8b(rb / lun->stats.blocksize, 6785 data->sap.transmitted_lba); 6786 } 6787 scsi_u64to8b((uint64_t)rt.sec * 1000 + rt.frac / (UINT64_MAX / 1000), 6788 data->sap.read_int); 6789 scsi_u64to8b((uint64_t)wt.sec * 1000 + wt.frac / (UINT64_MAX / 1000), 6790 data->sap.write_int); 6791 scsi_u64to8b(0, data->sap.weighted_num); 6792 scsi_u64to8b(0, data->sap.weighted_int); 6793 scsi_ulto2b(SLP_IT, data->it.hdr.param_code); 6794 data->it.hdr.param_control = SLP_LBIN; 6795 data->it.hdr.param_len = sizeof(struct scsi_log_idle_time) - 6796 sizeof(struct scsi_log_param_header); 6797#ifdef CTL_TIME_IO 6798 scsi_u64to8b(lun->idle_time / SBT_1MS, data->it.idle_int); 6799#endif 6800 scsi_ulto2b(SLP_TI, data->ti.hdr.param_code); 6801 data->it.hdr.param_control = SLP_LBIN; 6802 data->ti.hdr.param_len = sizeof(struct scsi_log_time_interval) - 6803 sizeof(struct scsi_log_param_header); 6804 scsi_ulto4b(3, data->ti.exponent); 6805 scsi_ulto4b(1, data->ti.integer); 6806 6807 page_index->page_len = sizeof(*data); 6808 return (0); 6809} 6810 6811int 6812ctl_log_sense(struct ctl_scsiio *ctsio) 6813{ 6814 struct ctl_lun *lun; 6815 int i, pc, page_code, subpage; 6816 int alloc_len, total_len; 6817 struct ctl_page_index *page_index; 6818 struct scsi_log_sense *cdb; 6819 struct scsi_log_header *header; 6820 6821 CTL_DEBUG_PRINT(("ctl_log_sense\n")); 6822 6823 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6824 cdb = (struct scsi_log_sense *)ctsio->cdb; 6825 pc = (cdb->page & SLS_PAGE_CTRL_MASK) >> 6; 6826 page_code = cdb->page & SLS_PAGE_CODE; 6827 subpage = cdb->subpage; 6828 alloc_len = scsi_2btoul(cdb->length); 6829 6830 page_index = NULL; 6831 for (i = 0; i < CTL_NUM_LOG_PAGES; i++) { 6832 page_index = &lun->log_pages.index[i]; 6833 6834 /* Look for the right page code */ 6835 if ((page_index->page_code & SL_PAGE_CODE) != page_code) 6836 continue; 6837 6838 /* Look for the right subpage or the subpage wildcard*/ 6839 if (page_index->subpage != subpage) 6840 continue; 6841 6842 break; 6843 } 6844 if (i >= CTL_NUM_LOG_PAGES) { 6845 ctl_set_invalid_field(ctsio, 6846 /*sks_valid*/ 1, 6847 /*command*/ 1, 6848 /*field*/ 2, 6849 /*bit_valid*/ 0, 6850 /*bit*/ 0); 6851 ctl_done((union ctl_io *)ctsio); 6852 return (CTL_RETVAL_COMPLETE); 6853 } 6854 6855 total_len = sizeof(struct scsi_log_header) + page_index->page_len; 6856 6857 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 6858 ctsio->kern_sg_entries = 0; 6859 ctsio->kern_data_resid = 0; 6860 ctsio->kern_rel_offset = 0; 6861 if (total_len < alloc_len) { 6862 ctsio->residual = alloc_len - total_len; 6863 ctsio->kern_data_len = total_len; 6864 ctsio->kern_total_len = total_len; 6865 } else { 6866 ctsio->residual = 0; 6867 ctsio->kern_data_len = alloc_len; 6868 ctsio->kern_total_len = alloc_len; 6869 } 6870 6871 header = (struct scsi_log_header *)ctsio->kern_data_ptr; 6872 header->page = page_index->page_code; 6873 if (page_index->subpage) { 6874 header->page |= SL_SPF; 6875 header->subpage = page_index->subpage; 6876 } 6877 scsi_ulto2b(page_index->page_len, header->datalen); 6878 6879 /* 6880 * Call the handler, if it exists, to update the 6881 * page to the latest values. 6882 */ 6883 if (page_index->sense_handler != NULL) 6884 page_index->sense_handler(ctsio, page_index, pc); 6885 6886 memcpy(header + 1, page_index->page_data, page_index->page_len); 6887 6888 ctl_set_success(ctsio); 6889 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6890 ctsio->be_move_done = ctl_config_move_done; 6891 ctl_datamove((union ctl_io *)ctsio); 6892 return (CTL_RETVAL_COMPLETE); 6893} 6894 6895int 6896ctl_read_capacity(struct ctl_scsiio *ctsio) 6897{ 6898 struct scsi_read_capacity *cdb; 6899 struct scsi_read_capacity_data *data; 6900 struct ctl_lun *lun; 6901 uint32_t lba; 6902 6903 CTL_DEBUG_PRINT(("ctl_read_capacity\n")); 6904 6905 cdb = (struct scsi_read_capacity *)ctsio->cdb; 6906 6907 lba = scsi_4btoul(cdb->addr); 6908 if (((cdb->pmi & SRC_PMI) == 0) 6909 && (lba != 0)) { 6910 ctl_set_invalid_field(/*ctsio*/ ctsio, 6911 /*sks_valid*/ 1, 6912 /*command*/ 1, 6913 /*field*/ 2, 6914 /*bit_valid*/ 0, 6915 /*bit*/ 0); 6916 ctl_done((union ctl_io *)ctsio); 6917 return (CTL_RETVAL_COMPLETE); 6918 } 6919 6920 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6921 6922 ctsio->kern_data_ptr = malloc(sizeof(*data), M_CTL, M_WAITOK | M_ZERO); 6923 data = (struct scsi_read_capacity_data *)ctsio->kern_data_ptr; 6924 ctsio->residual = 0; 6925 ctsio->kern_data_len = sizeof(*data); 6926 ctsio->kern_total_len = sizeof(*data); 6927 ctsio->kern_data_resid = 0; 6928 ctsio->kern_rel_offset = 0; 6929 ctsio->kern_sg_entries = 0; 6930 6931 /* 6932 * If the maximum LBA is greater than 0xfffffffe, the user must 6933 * issue a SERVICE ACTION IN (16) command, with the read capacity 6934 * serivce action set. 6935 */ 6936 if (lun->be_lun->maxlba > 0xfffffffe) 6937 scsi_ulto4b(0xffffffff, data->addr); 6938 else 6939 scsi_ulto4b(lun->be_lun->maxlba, data->addr); 6940 6941 /* 6942 * XXX KDM this may not be 512 bytes... 6943 */ 6944 scsi_ulto4b(lun->be_lun->blocksize, data->length); 6945 6946 ctl_set_success(ctsio); 6947 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6948 ctsio->be_move_done = ctl_config_move_done; 6949 ctl_datamove((union ctl_io *)ctsio); 6950 return (CTL_RETVAL_COMPLETE); 6951} 6952 6953int 6954ctl_read_capacity_16(struct ctl_scsiio *ctsio) 6955{ 6956 struct scsi_read_capacity_16 *cdb; 6957 struct scsi_read_capacity_data_long *data; 6958 struct ctl_lun *lun; 6959 uint64_t lba; 6960 uint32_t alloc_len; 6961 6962 CTL_DEBUG_PRINT(("ctl_read_capacity_16\n")); 6963 6964 cdb = (struct scsi_read_capacity_16 *)ctsio->cdb; 6965 6966 alloc_len = scsi_4btoul(cdb->alloc_len); 6967 lba = scsi_8btou64(cdb->addr); 6968 6969 if ((cdb->reladr & SRC16_PMI) 6970 && (lba != 0)) { 6971 ctl_set_invalid_field(/*ctsio*/ ctsio, 6972 /*sks_valid*/ 1, 6973 /*command*/ 1, 6974 /*field*/ 2, 6975 /*bit_valid*/ 0, 6976 /*bit*/ 0); 6977 ctl_done((union ctl_io *)ctsio); 6978 return (CTL_RETVAL_COMPLETE); 6979 } 6980 6981 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6982 6983 ctsio->kern_data_ptr = malloc(sizeof(*data), M_CTL, M_WAITOK | M_ZERO); 6984 data = (struct scsi_read_capacity_data_long *)ctsio->kern_data_ptr; 6985 6986 if (sizeof(*data) < alloc_len) { 6987 ctsio->residual = alloc_len - sizeof(*data); 6988 ctsio->kern_data_len = sizeof(*data); 6989 ctsio->kern_total_len = sizeof(*data); 6990 } else { 6991 ctsio->residual = 0; 6992 ctsio->kern_data_len = alloc_len; 6993 ctsio->kern_total_len = alloc_len; 6994 } 6995 ctsio->kern_data_resid = 0; 6996 ctsio->kern_rel_offset = 0; 6997 ctsio->kern_sg_entries = 0; 6998 6999 scsi_u64to8b(lun->be_lun->maxlba, data->addr); 7000 /* XXX KDM this may not be 512 bytes... */ 7001 scsi_ulto4b(lun->be_lun->blocksize, data->length); 7002 data->prot_lbppbe = lun->be_lun->pblockexp & SRC16_LBPPBE; 7003 scsi_ulto2b(lun->be_lun->pblockoff & SRC16_LALBA_A, data->lalba_lbp); 7004 if (lun->be_lun->flags & CTL_LUN_FLAG_UNMAP) 7005 data->lalba_lbp[0] |= SRC16_LBPME | SRC16_LBPRZ; 7006 7007 ctl_set_success(ctsio); 7008 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7009 ctsio->be_move_done = ctl_config_move_done; 7010 ctl_datamove((union ctl_io *)ctsio); 7011 return (CTL_RETVAL_COMPLETE); 7012} 7013 7014int 7015ctl_get_lba_status(struct ctl_scsiio *ctsio) 7016{ 7017 struct scsi_get_lba_status *cdb; 7018 struct scsi_get_lba_status_data *data; 7019 struct ctl_lun *lun; 7020 struct ctl_lba_len_flags *lbalen; 7021 uint64_t lba; 7022 uint32_t alloc_len, total_len; 7023 int retval; 7024 7025 CTL_DEBUG_PRINT(("ctl_get_lba_status\n")); 7026 7027 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7028 cdb = (struct scsi_get_lba_status *)ctsio->cdb; 7029 lba = scsi_8btou64(cdb->addr); 7030 alloc_len = scsi_4btoul(cdb->alloc_len); 7031 7032 if (lba > lun->be_lun->maxlba) { 7033 ctl_set_lba_out_of_range(ctsio); 7034 ctl_done((union ctl_io *)ctsio); 7035 return (CTL_RETVAL_COMPLETE); 7036 } 7037 7038 total_len = sizeof(*data) + sizeof(data->descr[0]); 7039 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7040 data = (struct scsi_get_lba_status_data *)ctsio->kern_data_ptr; 7041 7042 if (total_len < alloc_len) { 7043 ctsio->residual = alloc_len - total_len; 7044 ctsio->kern_data_len = total_len; 7045 ctsio->kern_total_len = total_len; 7046 } else { 7047 ctsio->residual = 0; 7048 ctsio->kern_data_len = alloc_len; 7049 ctsio->kern_total_len = alloc_len; 7050 } 7051 ctsio->kern_data_resid = 0; 7052 ctsio->kern_rel_offset = 0; 7053 ctsio->kern_sg_entries = 0; 7054 7055 /* Fill dummy data in case backend can't tell anything. */ 7056 scsi_ulto4b(4 + sizeof(data->descr[0]), data->length); 7057 scsi_u64to8b(lba, data->descr[0].addr); 7058 scsi_ulto4b(MIN(UINT32_MAX, lun->be_lun->maxlba + 1 - lba), 7059 data->descr[0].length); 7060 data->descr[0].status = 0; /* Mapped or unknown. */ 7061 7062 ctl_set_success(ctsio); 7063 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7064 ctsio->be_move_done = ctl_config_move_done; 7065 7066 lbalen = (struct ctl_lba_len_flags *)&ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 7067 lbalen->lba = lba; 7068 lbalen->len = total_len; 7069 lbalen->flags = 0; 7070 retval = lun->backend->config_read((union ctl_io *)ctsio); 7071 return (CTL_RETVAL_COMPLETE); 7072} 7073 7074int 7075ctl_read_defect(struct ctl_scsiio *ctsio) 7076{ 7077 struct scsi_read_defect_data_10 *ccb10; 7078 struct scsi_read_defect_data_12 *ccb12; 7079 struct scsi_read_defect_data_hdr_10 *data10; 7080 struct scsi_read_defect_data_hdr_12 *data12; 7081 uint32_t alloc_len, data_len; 7082 uint8_t format; 7083 7084 CTL_DEBUG_PRINT(("ctl_read_defect\n")); 7085 7086 if (ctsio->cdb[0] == READ_DEFECT_DATA_10) { 7087 ccb10 = (struct scsi_read_defect_data_10 *)&ctsio->cdb; 7088 format = ccb10->format; 7089 alloc_len = scsi_2btoul(ccb10->alloc_length); 7090 data_len = sizeof(*data10); 7091 } else { 7092 ccb12 = (struct scsi_read_defect_data_12 *)&ctsio->cdb; 7093 format = ccb12->format; 7094 alloc_len = scsi_4btoul(ccb12->alloc_length); 7095 data_len = sizeof(*data12); 7096 } 7097 if (alloc_len == 0) { 7098 ctl_set_success(ctsio); 7099 ctl_done((union ctl_io *)ctsio); 7100 return (CTL_RETVAL_COMPLETE); 7101 } 7102 7103 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 7104 if (data_len < alloc_len) { 7105 ctsio->residual = alloc_len - data_len; 7106 ctsio->kern_data_len = data_len; 7107 ctsio->kern_total_len = data_len; 7108 } else { 7109 ctsio->residual = 0; 7110 ctsio->kern_data_len = alloc_len; 7111 ctsio->kern_total_len = alloc_len; 7112 } 7113 ctsio->kern_data_resid = 0; 7114 ctsio->kern_rel_offset = 0; 7115 ctsio->kern_sg_entries = 0; 7116 7117 if (ctsio->cdb[0] == READ_DEFECT_DATA_10) { 7118 data10 = (struct scsi_read_defect_data_hdr_10 *) 7119 ctsio->kern_data_ptr; 7120 data10->format = format; 7121 scsi_ulto2b(0, data10->length); 7122 } else { 7123 data12 = (struct scsi_read_defect_data_hdr_12 *) 7124 ctsio->kern_data_ptr; 7125 data12->format = format; 7126 scsi_ulto2b(0, data12->generation); 7127 scsi_ulto4b(0, data12->length); 7128 } 7129 7130 ctl_set_success(ctsio); 7131 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7132 ctsio->be_move_done = ctl_config_move_done; 7133 ctl_datamove((union ctl_io *)ctsio); 7134 return (CTL_RETVAL_COMPLETE); 7135} 7136 7137int 7138ctl_report_tagret_port_groups(struct ctl_scsiio *ctsio) 7139{ 7140 struct scsi_maintenance_in *cdb; 7141 int retval; 7142 int alloc_len, ext, total_len = 0, g, pc, pg, gs, os; 7143 int num_target_port_groups, num_target_ports; 7144 struct ctl_lun *lun; 7145 struct ctl_softc *softc; 7146 struct ctl_port *port; 7147 struct scsi_target_group_data *rtg_ptr; 7148 struct scsi_target_group_data_extended *rtg_ext_ptr; 7149 struct scsi_target_port_group_descriptor *tpg_desc; 7150 7151 CTL_DEBUG_PRINT(("ctl_report_tagret_port_groups\n")); 7152 7153 cdb = (struct scsi_maintenance_in *)ctsio->cdb; 7154 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7155 softc = lun->ctl_softc; 7156 7157 retval = CTL_RETVAL_COMPLETE; 7158 7159 switch (cdb->byte2 & STG_PDF_MASK) { 7160 case STG_PDF_LENGTH: 7161 ext = 0; 7162 break; 7163 case STG_PDF_EXTENDED: 7164 ext = 1; 7165 break; 7166 default: 7167 ctl_set_invalid_field(/*ctsio*/ ctsio, 7168 /*sks_valid*/ 1, 7169 /*command*/ 1, 7170 /*field*/ 2, 7171 /*bit_valid*/ 1, 7172 /*bit*/ 5); 7173 ctl_done((union ctl_io *)ctsio); 7174 return(retval); 7175 } 7176 7177 if (softc->is_single) 7178 num_target_port_groups = 1; 7179 else 7180 num_target_port_groups = NUM_TARGET_PORT_GROUPS; 7181 num_target_ports = 0; 7182 mtx_lock(&softc->ctl_lock); 7183 STAILQ_FOREACH(port, &softc->port_list, links) { 7184 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 7185 continue; 7186 if (ctl_lun_map_to_port(port, lun->lun) >= CTL_MAX_LUNS) 7187 continue; 7188 num_target_ports++; 7189 } 7190 mtx_unlock(&softc->ctl_lock); 7191 7192 if (ext) 7193 total_len = sizeof(struct scsi_target_group_data_extended); 7194 else 7195 total_len = sizeof(struct scsi_target_group_data); 7196 total_len += sizeof(struct scsi_target_port_group_descriptor) * 7197 num_target_port_groups + 7198 sizeof(struct scsi_target_port_descriptor) * num_target_ports; 7199 7200 alloc_len = scsi_4btoul(cdb->length); 7201 7202 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7203 7204 ctsio->kern_sg_entries = 0; 7205 7206 if (total_len < alloc_len) { 7207 ctsio->residual = alloc_len - total_len; 7208 ctsio->kern_data_len = total_len; 7209 ctsio->kern_total_len = total_len; 7210 } else { 7211 ctsio->residual = 0; 7212 ctsio->kern_data_len = alloc_len; 7213 ctsio->kern_total_len = alloc_len; 7214 } 7215 ctsio->kern_data_resid = 0; 7216 ctsio->kern_rel_offset = 0; 7217 7218 if (ext) { 7219 rtg_ext_ptr = (struct scsi_target_group_data_extended *) 7220 ctsio->kern_data_ptr; 7221 scsi_ulto4b(total_len - 4, rtg_ext_ptr->length); 7222 rtg_ext_ptr->format_type = 0x10; 7223 rtg_ext_ptr->implicit_transition_time = 0; 7224 tpg_desc = &rtg_ext_ptr->groups[0]; 7225 } else { 7226 rtg_ptr = (struct scsi_target_group_data *) 7227 ctsio->kern_data_ptr; 7228 scsi_ulto4b(total_len - 4, rtg_ptr->length); 7229 tpg_desc = &rtg_ptr->groups[0]; 7230 } 7231 7232 mtx_lock(&softc->ctl_lock); 7233 pg = softc->port_min / softc->port_cnt; 7234 if (softc->ha_link == CTL_HA_LINK_OFFLINE) 7235 gs = TPG_ASYMMETRIC_ACCESS_UNAVAILABLE; 7236 else if (softc->ha_link == CTL_HA_LINK_UNKNOWN) 7237 gs = TPG_ASYMMETRIC_ACCESS_TRANSITIONING; 7238 else if (softc->ha_mode == CTL_HA_MODE_ACT_STBY) 7239 gs = TPG_ASYMMETRIC_ACCESS_STANDBY; 7240 else 7241 gs = TPG_ASYMMETRIC_ACCESS_NONOPTIMIZED; 7242 if (lun->flags & CTL_LUN_PRIMARY_SC) { 7243 os = gs; 7244 gs = TPG_ASYMMETRIC_ACCESS_OPTIMIZED; 7245 } else 7246 os = TPG_ASYMMETRIC_ACCESS_OPTIMIZED; 7247 for (g = 0; g < num_target_port_groups; g++) { 7248 tpg_desc->pref_state = (g == pg) ? gs : os; 7249 tpg_desc->support = TPG_AO_SUP | TPG_AN_SUP | TPG_S_SUP | 7250 TPG_U_SUP | TPG_T_SUP; 7251 scsi_ulto2b(g + 1, tpg_desc->target_port_group); 7252 tpg_desc->status = TPG_IMPLICIT; 7253 pc = 0; 7254 STAILQ_FOREACH(port, &softc->port_list, links) { 7255 if (port->targ_port < g * softc->port_cnt || 7256 port->targ_port >= (g + 1) * softc->port_cnt) 7257 continue; 7258 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 7259 continue; 7260 if (ctl_lun_map_to_port(port, lun->lun) >= CTL_MAX_LUNS) 7261 continue; 7262 scsi_ulto2b(port->targ_port, tpg_desc->descriptors[pc]. 7263 relative_target_port_identifier); 7264 pc++; 7265 } 7266 tpg_desc->target_port_count = pc; 7267 tpg_desc = (struct scsi_target_port_group_descriptor *) 7268 &tpg_desc->descriptors[pc]; 7269 } 7270 mtx_unlock(&softc->ctl_lock); 7271 7272 ctl_set_success(ctsio); 7273 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7274 ctsio->be_move_done = ctl_config_move_done; 7275 ctl_datamove((union ctl_io *)ctsio); 7276 return(retval); 7277} 7278 7279int 7280ctl_report_supported_opcodes(struct ctl_scsiio *ctsio) 7281{ 7282 struct ctl_lun *lun; 7283 struct scsi_report_supported_opcodes *cdb; 7284 const struct ctl_cmd_entry *entry, *sentry; 7285 struct scsi_report_supported_opcodes_all *all; 7286 struct scsi_report_supported_opcodes_descr *descr; 7287 struct scsi_report_supported_opcodes_one *one; 7288 int retval; 7289 int alloc_len, total_len; 7290 int opcode, service_action, i, j, num; 7291 7292 CTL_DEBUG_PRINT(("ctl_report_supported_opcodes\n")); 7293 7294 cdb = (struct scsi_report_supported_opcodes *)ctsio->cdb; 7295 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7296 7297 retval = CTL_RETVAL_COMPLETE; 7298 7299 opcode = cdb->requested_opcode; 7300 service_action = scsi_2btoul(cdb->requested_service_action); 7301 switch (cdb->options & RSO_OPTIONS_MASK) { 7302 case RSO_OPTIONS_ALL: 7303 num = 0; 7304 for (i = 0; i < 256; i++) { 7305 entry = &ctl_cmd_table[i]; 7306 if (entry->flags & CTL_CMD_FLAG_SA5) { 7307 for (j = 0; j < 32; j++) { 7308 sentry = &((const struct ctl_cmd_entry *) 7309 entry->execute)[j]; 7310 if (ctl_cmd_applicable( 7311 lun->be_lun->lun_type, sentry)) 7312 num++; 7313 } 7314 } else { 7315 if (ctl_cmd_applicable(lun->be_lun->lun_type, 7316 entry)) 7317 num++; 7318 } 7319 } 7320 total_len = sizeof(struct scsi_report_supported_opcodes_all) + 7321 num * sizeof(struct scsi_report_supported_opcodes_descr); 7322 break; 7323 case RSO_OPTIONS_OC: 7324 if (ctl_cmd_table[opcode].flags & CTL_CMD_FLAG_SA5) { 7325 ctl_set_invalid_field(/*ctsio*/ ctsio, 7326 /*sks_valid*/ 1, 7327 /*command*/ 1, 7328 /*field*/ 2, 7329 /*bit_valid*/ 1, 7330 /*bit*/ 2); 7331 ctl_done((union ctl_io *)ctsio); 7332 return (CTL_RETVAL_COMPLETE); 7333 } 7334 total_len = sizeof(struct scsi_report_supported_opcodes_one) + 32; 7335 break; 7336 case RSO_OPTIONS_OC_SA: 7337 if ((ctl_cmd_table[opcode].flags & CTL_CMD_FLAG_SA5) == 0 || 7338 service_action >= 32) { 7339 ctl_set_invalid_field(/*ctsio*/ ctsio, 7340 /*sks_valid*/ 1, 7341 /*command*/ 1, 7342 /*field*/ 2, 7343 /*bit_valid*/ 1, 7344 /*bit*/ 2); 7345 ctl_done((union ctl_io *)ctsio); 7346 return (CTL_RETVAL_COMPLETE); 7347 } 7348 total_len = sizeof(struct scsi_report_supported_opcodes_one) + 32; 7349 break; 7350 default: 7351 ctl_set_invalid_field(/*ctsio*/ ctsio, 7352 /*sks_valid*/ 1, 7353 /*command*/ 1, 7354 /*field*/ 2, 7355 /*bit_valid*/ 1, 7356 /*bit*/ 2); 7357 ctl_done((union ctl_io *)ctsio); 7358 return (CTL_RETVAL_COMPLETE); 7359 } 7360 7361 alloc_len = scsi_4btoul(cdb->length); 7362 7363 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7364 7365 ctsio->kern_sg_entries = 0; 7366 7367 if (total_len < alloc_len) { 7368 ctsio->residual = alloc_len - total_len; 7369 ctsio->kern_data_len = total_len; 7370 ctsio->kern_total_len = total_len; 7371 } else { 7372 ctsio->residual = 0; 7373 ctsio->kern_data_len = alloc_len; 7374 ctsio->kern_total_len = alloc_len; 7375 } 7376 ctsio->kern_data_resid = 0; 7377 ctsio->kern_rel_offset = 0; 7378 7379 switch (cdb->options & RSO_OPTIONS_MASK) { 7380 case RSO_OPTIONS_ALL: 7381 all = (struct scsi_report_supported_opcodes_all *) 7382 ctsio->kern_data_ptr; 7383 num = 0; 7384 for (i = 0; i < 256; i++) { 7385 entry = &ctl_cmd_table[i]; 7386 if (entry->flags & CTL_CMD_FLAG_SA5) { 7387 for (j = 0; j < 32; j++) { 7388 sentry = &((const struct ctl_cmd_entry *) 7389 entry->execute)[j]; 7390 if (!ctl_cmd_applicable( 7391 lun->be_lun->lun_type, sentry)) 7392 continue; 7393 descr = &all->descr[num++]; 7394 descr->opcode = i; 7395 scsi_ulto2b(j, descr->service_action); 7396 descr->flags = RSO_SERVACTV; 7397 scsi_ulto2b(sentry->length, 7398 descr->cdb_length); 7399 } 7400 } else { 7401 if (!ctl_cmd_applicable(lun->be_lun->lun_type, 7402 entry)) 7403 continue; 7404 descr = &all->descr[num++]; 7405 descr->opcode = i; 7406 scsi_ulto2b(0, descr->service_action); 7407 descr->flags = 0; 7408 scsi_ulto2b(entry->length, descr->cdb_length); 7409 } 7410 } 7411 scsi_ulto4b( 7412 num * sizeof(struct scsi_report_supported_opcodes_descr), 7413 all->length); 7414 break; 7415 case RSO_OPTIONS_OC: 7416 one = (struct scsi_report_supported_opcodes_one *) 7417 ctsio->kern_data_ptr; 7418 entry = &ctl_cmd_table[opcode]; 7419 goto fill_one; 7420 case RSO_OPTIONS_OC_SA: 7421 one = (struct scsi_report_supported_opcodes_one *) 7422 ctsio->kern_data_ptr; 7423 entry = &ctl_cmd_table[opcode]; 7424 entry = &((const struct ctl_cmd_entry *) 7425 entry->execute)[service_action]; 7426fill_one: 7427 if (ctl_cmd_applicable(lun->be_lun->lun_type, entry)) { 7428 one->support = 3; 7429 scsi_ulto2b(entry->length, one->cdb_length); 7430 one->cdb_usage[0] = opcode; 7431 memcpy(&one->cdb_usage[1], entry->usage, 7432 entry->length - 1); 7433 } else 7434 one->support = 1; 7435 break; 7436 } 7437 7438 ctl_set_success(ctsio); 7439 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7440 ctsio->be_move_done = ctl_config_move_done; 7441 ctl_datamove((union ctl_io *)ctsio); 7442 return(retval); 7443} 7444 7445int 7446ctl_report_supported_tmf(struct ctl_scsiio *ctsio) 7447{ 7448 struct scsi_report_supported_tmf *cdb; 7449 struct scsi_report_supported_tmf_data *data; 7450 int retval; 7451 int alloc_len, total_len; 7452 7453 CTL_DEBUG_PRINT(("ctl_report_supported_tmf\n")); 7454 7455 cdb = (struct scsi_report_supported_tmf *)ctsio->cdb; 7456 7457 retval = CTL_RETVAL_COMPLETE; 7458 7459 total_len = sizeof(struct scsi_report_supported_tmf_data); 7460 alloc_len = scsi_4btoul(cdb->length); 7461 7462 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7463 7464 ctsio->kern_sg_entries = 0; 7465 7466 if (total_len < alloc_len) { 7467 ctsio->residual = alloc_len - total_len; 7468 ctsio->kern_data_len = total_len; 7469 ctsio->kern_total_len = total_len; 7470 } else { 7471 ctsio->residual = 0; 7472 ctsio->kern_data_len = alloc_len; 7473 ctsio->kern_total_len = alloc_len; 7474 } 7475 ctsio->kern_data_resid = 0; 7476 ctsio->kern_rel_offset = 0; 7477 7478 data = (struct scsi_report_supported_tmf_data *)ctsio->kern_data_ptr; 7479 data->byte1 |= RST_ATS | RST_ATSS | RST_CTSS | RST_LURS | RST_QTS | 7480 RST_TRS; 7481 data->byte2 |= RST_QAES | RST_QTSS | RST_ITNRS; 7482 7483 ctl_set_success(ctsio); 7484 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7485 ctsio->be_move_done = ctl_config_move_done; 7486 ctl_datamove((union ctl_io *)ctsio); 7487 return (retval); 7488} 7489 7490int 7491ctl_report_timestamp(struct ctl_scsiio *ctsio) 7492{ 7493 struct scsi_report_timestamp *cdb; 7494 struct scsi_report_timestamp_data *data; 7495 struct timeval tv; 7496 int64_t timestamp; 7497 int retval; 7498 int alloc_len, total_len; 7499 7500 CTL_DEBUG_PRINT(("ctl_report_timestamp\n")); 7501 7502 cdb = (struct scsi_report_timestamp *)ctsio->cdb; 7503 7504 retval = CTL_RETVAL_COMPLETE; 7505 7506 total_len = sizeof(struct scsi_report_timestamp_data); 7507 alloc_len = scsi_4btoul(cdb->length); 7508 7509 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7510 7511 ctsio->kern_sg_entries = 0; 7512 7513 if (total_len < alloc_len) { 7514 ctsio->residual = alloc_len - total_len; 7515 ctsio->kern_data_len = total_len; 7516 ctsio->kern_total_len = total_len; 7517 } else { 7518 ctsio->residual = 0; 7519 ctsio->kern_data_len = alloc_len; 7520 ctsio->kern_total_len = alloc_len; 7521 } 7522 ctsio->kern_data_resid = 0; 7523 ctsio->kern_rel_offset = 0; 7524 7525 data = (struct scsi_report_timestamp_data *)ctsio->kern_data_ptr; 7526 scsi_ulto2b(sizeof(*data) - 2, data->length); 7527 data->origin = RTS_ORIG_OUTSIDE; 7528 getmicrotime(&tv); 7529 timestamp = (int64_t)tv.tv_sec * 1000 + tv.tv_usec / 1000; 7530 scsi_ulto4b(timestamp >> 16, data->timestamp); 7531 scsi_ulto2b(timestamp & 0xffff, &data->timestamp[4]); 7532 7533 ctl_set_success(ctsio); 7534 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7535 ctsio->be_move_done = ctl_config_move_done; 7536 ctl_datamove((union ctl_io *)ctsio); 7537 return (retval); 7538} 7539 7540int 7541ctl_persistent_reserve_in(struct ctl_scsiio *ctsio) 7542{ 7543 struct scsi_per_res_in *cdb; 7544 int alloc_len, total_len = 0; 7545 /* struct scsi_per_res_in_rsrv in_data; */ 7546 struct ctl_lun *lun; 7547 struct ctl_softc *softc; 7548 uint64_t key; 7549 7550 CTL_DEBUG_PRINT(("ctl_persistent_reserve_in\n")); 7551 7552 cdb = (struct scsi_per_res_in *)ctsio->cdb; 7553 7554 alloc_len = scsi_2btoul(cdb->length); 7555 7556 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7557 softc = lun->ctl_softc; 7558 7559retry: 7560 mtx_lock(&lun->lun_lock); 7561 switch (cdb->action) { 7562 case SPRI_RK: /* read keys */ 7563 total_len = sizeof(struct scsi_per_res_in_keys) + 7564 lun->pr_key_count * 7565 sizeof(struct scsi_per_res_key); 7566 break; 7567 case SPRI_RR: /* read reservation */ 7568 if (lun->flags & CTL_LUN_PR_RESERVED) 7569 total_len = sizeof(struct scsi_per_res_in_rsrv); 7570 else 7571 total_len = sizeof(struct scsi_per_res_in_header); 7572 break; 7573 case SPRI_RC: /* report capabilities */ 7574 total_len = sizeof(struct scsi_per_res_cap); 7575 break; 7576 case SPRI_RS: /* read full status */ 7577 total_len = sizeof(struct scsi_per_res_in_header) + 7578 (sizeof(struct scsi_per_res_in_full_desc) + 256) * 7579 lun->pr_key_count; 7580 break; 7581 default: 7582 panic("%s: Invalid PR type %#x", __func__, cdb->action); 7583 } 7584 mtx_unlock(&lun->lun_lock); 7585 7586 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7587 7588 if (total_len < alloc_len) { 7589 ctsio->residual = alloc_len - total_len; 7590 ctsio->kern_data_len = total_len; 7591 ctsio->kern_total_len = total_len; 7592 } else { 7593 ctsio->residual = 0; 7594 ctsio->kern_data_len = alloc_len; 7595 ctsio->kern_total_len = alloc_len; 7596 } 7597 7598 ctsio->kern_data_resid = 0; 7599 ctsio->kern_rel_offset = 0; 7600 ctsio->kern_sg_entries = 0; 7601 7602 mtx_lock(&lun->lun_lock); 7603 switch (cdb->action) { 7604 case SPRI_RK: { // read keys 7605 struct scsi_per_res_in_keys *res_keys; 7606 int i, key_count; 7607 7608 res_keys = (struct scsi_per_res_in_keys*)ctsio->kern_data_ptr; 7609 7610 /* 7611 * We had to drop the lock to allocate our buffer, which 7612 * leaves time for someone to come in with another 7613 * persistent reservation. (That is unlikely, though, 7614 * since this should be the only persistent reservation 7615 * command active right now.) 7616 */ 7617 if (total_len != (sizeof(struct scsi_per_res_in_keys) + 7618 (lun->pr_key_count * 7619 sizeof(struct scsi_per_res_key)))){ 7620 mtx_unlock(&lun->lun_lock); 7621 free(ctsio->kern_data_ptr, M_CTL); 7622 printf("%s: reservation length changed, retrying\n", 7623 __func__); 7624 goto retry; 7625 } 7626 7627 scsi_ulto4b(lun->pr_generation, res_keys->header.generation); 7628 7629 scsi_ulto4b(sizeof(struct scsi_per_res_key) * 7630 lun->pr_key_count, res_keys->header.length); 7631 7632 for (i = 0, key_count = 0; i < CTL_MAX_INITIATORS; i++) { 7633 if ((key = ctl_get_prkey(lun, i)) == 0) 7634 continue; 7635 7636 /* 7637 * We used lun->pr_key_count to calculate the 7638 * size to allocate. If it turns out the number of 7639 * initiators with the registered flag set is 7640 * larger than that (i.e. they haven't been kept in 7641 * sync), we've got a problem. 7642 */ 7643 if (key_count >= lun->pr_key_count) { 7644 key_count++; 7645 continue; 7646 } 7647 scsi_u64to8b(key, res_keys->keys[key_count].key); 7648 key_count++; 7649 } 7650 break; 7651 } 7652 case SPRI_RR: { // read reservation 7653 struct scsi_per_res_in_rsrv *res; 7654 int tmp_len, header_only; 7655 7656 res = (struct scsi_per_res_in_rsrv *)ctsio->kern_data_ptr; 7657 7658 scsi_ulto4b(lun->pr_generation, res->header.generation); 7659 7660 if (lun->flags & CTL_LUN_PR_RESERVED) 7661 { 7662 tmp_len = sizeof(struct scsi_per_res_in_rsrv); 7663 scsi_ulto4b(sizeof(struct scsi_per_res_in_rsrv_data), 7664 res->header.length); 7665 header_only = 0; 7666 } else { 7667 tmp_len = sizeof(struct scsi_per_res_in_header); 7668 scsi_ulto4b(0, res->header.length); 7669 header_only = 1; 7670 } 7671 7672 /* 7673 * We had to drop the lock to allocate our buffer, which 7674 * leaves time for someone to come in with another 7675 * persistent reservation. (That is unlikely, though, 7676 * since this should be the only persistent reservation 7677 * command active right now.) 7678 */ 7679 if (tmp_len != total_len) { 7680 mtx_unlock(&lun->lun_lock); 7681 free(ctsio->kern_data_ptr, M_CTL); 7682 printf("%s: reservation status changed, retrying\n", 7683 __func__); 7684 goto retry; 7685 } 7686 7687 /* 7688 * No reservation held, so we're done. 7689 */ 7690 if (header_only != 0) 7691 break; 7692 7693 /* 7694 * If the registration is an All Registrants type, the key 7695 * is 0, since it doesn't really matter. 7696 */ 7697 if (lun->pr_res_idx != CTL_PR_ALL_REGISTRANTS) { 7698 scsi_u64to8b(ctl_get_prkey(lun, lun->pr_res_idx), 7699 res->data.reservation); 7700 } 7701 res->data.scopetype = lun->pr_res_type; 7702 break; 7703 } 7704 case SPRI_RC: //report capabilities 7705 { 7706 struct scsi_per_res_cap *res_cap; 7707 uint16_t type_mask; 7708 7709 res_cap = (struct scsi_per_res_cap *)ctsio->kern_data_ptr; 7710 scsi_ulto2b(sizeof(*res_cap), res_cap->length); 7711 res_cap->flags1 = SPRI_CRH; 7712 res_cap->flags2 = SPRI_TMV | SPRI_ALLOW_5; 7713 type_mask = SPRI_TM_WR_EX_AR | 7714 SPRI_TM_EX_AC_RO | 7715 SPRI_TM_WR_EX_RO | 7716 SPRI_TM_EX_AC | 7717 SPRI_TM_WR_EX | 7718 SPRI_TM_EX_AC_AR; 7719 scsi_ulto2b(type_mask, res_cap->type_mask); 7720 break; 7721 } 7722 case SPRI_RS: { // read full status 7723 struct scsi_per_res_in_full *res_status; 7724 struct scsi_per_res_in_full_desc *res_desc; 7725 struct ctl_port *port; 7726 int i, len; 7727 7728 res_status = (struct scsi_per_res_in_full*)ctsio->kern_data_ptr; 7729 7730 /* 7731 * We had to drop the lock to allocate our buffer, which 7732 * leaves time for someone to come in with another 7733 * persistent reservation. (That is unlikely, though, 7734 * since this should be the only persistent reservation 7735 * command active right now.) 7736 */ 7737 if (total_len < (sizeof(struct scsi_per_res_in_header) + 7738 (sizeof(struct scsi_per_res_in_full_desc) + 256) * 7739 lun->pr_key_count)){ 7740 mtx_unlock(&lun->lun_lock); 7741 free(ctsio->kern_data_ptr, M_CTL); 7742 printf("%s: reservation length changed, retrying\n", 7743 __func__); 7744 goto retry; 7745 } 7746 7747 scsi_ulto4b(lun->pr_generation, res_status->header.generation); 7748 7749 res_desc = &res_status->desc[0]; 7750 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 7751 if ((key = ctl_get_prkey(lun, i)) == 0) 7752 continue; 7753 7754 scsi_u64to8b(key, res_desc->res_key.key); 7755 if ((lun->flags & CTL_LUN_PR_RESERVED) && 7756 (lun->pr_res_idx == i || 7757 lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS)) { 7758 res_desc->flags = SPRI_FULL_R_HOLDER; 7759 res_desc->scopetype = lun->pr_res_type; 7760 } 7761 scsi_ulto2b(i / CTL_MAX_INIT_PER_PORT, 7762 res_desc->rel_trgt_port_id); 7763 len = 0; 7764 port = softc->ctl_ports[i / CTL_MAX_INIT_PER_PORT]; 7765 if (port != NULL) 7766 len = ctl_create_iid(port, 7767 i % CTL_MAX_INIT_PER_PORT, 7768 res_desc->transport_id); 7769 scsi_ulto4b(len, res_desc->additional_length); 7770 res_desc = (struct scsi_per_res_in_full_desc *) 7771 &res_desc->transport_id[len]; 7772 } 7773 scsi_ulto4b((uint8_t *)res_desc - (uint8_t *)&res_status->desc[0], 7774 res_status->header.length); 7775 break; 7776 } 7777 default: 7778 panic("%s: Invalid PR type %#x", __func__, cdb->action); 7779 } 7780 mtx_unlock(&lun->lun_lock); 7781 7782 ctl_set_success(ctsio); 7783 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7784 ctsio->be_move_done = ctl_config_move_done; 7785 ctl_datamove((union ctl_io *)ctsio); 7786 return (CTL_RETVAL_COMPLETE); 7787} 7788 7789/* 7790 * Returns 0 if ctl_persistent_reserve_out() should continue, non-zero if 7791 * it should return. 7792 */ 7793static int 7794ctl_pro_preempt(struct ctl_softc *softc, struct ctl_lun *lun, uint64_t res_key, 7795 uint64_t sa_res_key, uint8_t type, uint32_t residx, 7796 struct ctl_scsiio *ctsio, struct scsi_per_res_out *cdb, 7797 struct scsi_per_res_out_parms* param) 7798{ 7799 union ctl_ha_msg persis_io; 7800 int i; 7801 7802 mtx_lock(&lun->lun_lock); 7803 if (sa_res_key == 0) { 7804 if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS) { 7805 /* validate scope and type */ 7806 if ((cdb->scope_type & SPR_SCOPE_MASK) != 7807 SPR_LU_SCOPE) { 7808 mtx_unlock(&lun->lun_lock); 7809 ctl_set_invalid_field(/*ctsio*/ ctsio, 7810 /*sks_valid*/ 1, 7811 /*command*/ 1, 7812 /*field*/ 2, 7813 /*bit_valid*/ 1, 7814 /*bit*/ 4); 7815 ctl_done((union ctl_io *)ctsio); 7816 return (1); 7817 } 7818 7819 if (type>8 || type==2 || type==4 || type==0) { 7820 mtx_unlock(&lun->lun_lock); 7821 ctl_set_invalid_field(/*ctsio*/ ctsio, 7822 /*sks_valid*/ 1, 7823 /*command*/ 1, 7824 /*field*/ 2, 7825 /*bit_valid*/ 1, 7826 /*bit*/ 0); 7827 ctl_done((union ctl_io *)ctsio); 7828 return (1); 7829 } 7830 7831 /* 7832 * Unregister everybody else and build UA for 7833 * them 7834 */ 7835 for(i = 0; i < CTL_MAX_INITIATORS; i++) { 7836 if (i == residx || ctl_get_prkey(lun, i) == 0) 7837 continue; 7838 7839 ctl_clr_prkey(lun, i); 7840 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 7841 } 7842 lun->pr_key_count = 1; 7843 lun->pr_res_type = type; 7844 if (lun->pr_res_type != SPR_TYPE_WR_EX_AR && 7845 lun->pr_res_type != SPR_TYPE_EX_AC_AR) 7846 lun->pr_res_idx = residx; 7847 lun->pr_generation++; 7848 mtx_unlock(&lun->lun_lock); 7849 7850 /* send msg to other side */ 7851 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 7852 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 7853 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 7854 persis_io.pr.pr_info.residx = lun->pr_res_idx; 7855 persis_io.pr.pr_info.res_type = type; 7856 memcpy(persis_io.pr.pr_info.sa_res_key, 7857 param->serv_act_res_key, 7858 sizeof(param->serv_act_res_key)); 7859 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 7860 sizeof(persis_io.pr), M_WAITOK); 7861 } else { 7862 /* not all registrants */ 7863 mtx_unlock(&lun->lun_lock); 7864 free(ctsio->kern_data_ptr, M_CTL); 7865 ctl_set_invalid_field(ctsio, 7866 /*sks_valid*/ 1, 7867 /*command*/ 0, 7868 /*field*/ 8, 7869 /*bit_valid*/ 0, 7870 /*bit*/ 0); 7871 ctl_done((union ctl_io *)ctsio); 7872 return (1); 7873 } 7874 } else if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS 7875 || !(lun->flags & CTL_LUN_PR_RESERVED)) { 7876 int found = 0; 7877 7878 if (res_key == sa_res_key) { 7879 /* special case */ 7880 /* 7881 * The spec implies this is not good but doesn't 7882 * say what to do. There are two choices either 7883 * generate a res conflict or check condition 7884 * with illegal field in parameter data. Since 7885 * that is what is done when the sa_res_key is 7886 * zero I'll take that approach since this has 7887 * to do with the sa_res_key. 7888 */ 7889 mtx_unlock(&lun->lun_lock); 7890 free(ctsio->kern_data_ptr, M_CTL); 7891 ctl_set_invalid_field(ctsio, 7892 /*sks_valid*/ 1, 7893 /*command*/ 0, 7894 /*field*/ 8, 7895 /*bit_valid*/ 0, 7896 /*bit*/ 0); 7897 ctl_done((union ctl_io *)ctsio); 7898 return (1); 7899 } 7900 7901 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 7902 if (ctl_get_prkey(lun, i) != sa_res_key) 7903 continue; 7904 7905 found = 1; 7906 ctl_clr_prkey(lun, i); 7907 lun->pr_key_count--; 7908 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 7909 } 7910 if (!found) { 7911 mtx_unlock(&lun->lun_lock); 7912 free(ctsio->kern_data_ptr, M_CTL); 7913 ctl_set_reservation_conflict(ctsio); 7914 ctl_done((union ctl_io *)ctsio); 7915 return (CTL_RETVAL_COMPLETE); 7916 } 7917 lun->pr_generation++; 7918 mtx_unlock(&lun->lun_lock); 7919 7920 /* send msg to other side */ 7921 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 7922 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 7923 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 7924 persis_io.pr.pr_info.residx = lun->pr_res_idx; 7925 persis_io.pr.pr_info.res_type = type; 7926 memcpy(persis_io.pr.pr_info.sa_res_key, 7927 param->serv_act_res_key, 7928 sizeof(param->serv_act_res_key)); 7929 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 7930 sizeof(persis_io.pr), M_WAITOK); 7931 } else { 7932 /* Reserved but not all registrants */ 7933 /* sa_res_key is res holder */ 7934 if (sa_res_key == ctl_get_prkey(lun, lun->pr_res_idx)) { 7935 /* validate scope and type */ 7936 if ((cdb->scope_type & SPR_SCOPE_MASK) != 7937 SPR_LU_SCOPE) { 7938 mtx_unlock(&lun->lun_lock); 7939 ctl_set_invalid_field(/*ctsio*/ ctsio, 7940 /*sks_valid*/ 1, 7941 /*command*/ 1, 7942 /*field*/ 2, 7943 /*bit_valid*/ 1, 7944 /*bit*/ 4); 7945 ctl_done((union ctl_io *)ctsio); 7946 return (1); 7947 } 7948 7949 if (type>8 || type==2 || type==4 || type==0) { 7950 mtx_unlock(&lun->lun_lock); 7951 ctl_set_invalid_field(/*ctsio*/ ctsio, 7952 /*sks_valid*/ 1, 7953 /*command*/ 1, 7954 /*field*/ 2, 7955 /*bit_valid*/ 1, 7956 /*bit*/ 0); 7957 ctl_done((union ctl_io *)ctsio); 7958 return (1); 7959 } 7960 7961 /* 7962 * Do the following: 7963 * if sa_res_key != res_key remove all 7964 * registrants w/sa_res_key and generate UA 7965 * for these registrants(Registrations 7966 * Preempted) if it wasn't an exclusive 7967 * reservation generate UA(Reservations 7968 * Preempted) for all other registered nexuses 7969 * if the type has changed. Establish the new 7970 * reservation and holder. If res_key and 7971 * sa_res_key are the same do the above 7972 * except don't unregister the res holder. 7973 */ 7974 7975 for(i = 0; i < CTL_MAX_INITIATORS; i++) { 7976 if (i == residx || ctl_get_prkey(lun, i) == 0) 7977 continue; 7978 7979 if (sa_res_key == ctl_get_prkey(lun, i)) { 7980 ctl_clr_prkey(lun, i); 7981 lun->pr_key_count--; 7982 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 7983 } else if (type != lun->pr_res_type && 7984 (lun->pr_res_type == SPR_TYPE_WR_EX_RO || 7985 lun->pr_res_type == SPR_TYPE_EX_AC_RO)) { 7986 ctl_est_ua(lun, i, CTL_UA_RES_RELEASE); 7987 } 7988 } 7989 lun->pr_res_type = type; 7990 if (lun->pr_res_type != SPR_TYPE_WR_EX_AR && 7991 lun->pr_res_type != SPR_TYPE_EX_AC_AR) 7992 lun->pr_res_idx = residx; 7993 else 7994 lun->pr_res_idx = CTL_PR_ALL_REGISTRANTS; 7995 lun->pr_generation++; 7996 mtx_unlock(&lun->lun_lock); 7997 7998 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 7999 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8000 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 8001 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8002 persis_io.pr.pr_info.res_type = type; 8003 memcpy(persis_io.pr.pr_info.sa_res_key, 8004 param->serv_act_res_key, 8005 sizeof(param->serv_act_res_key)); 8006 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8007 sizeof(persis_io.pr), M_WAITOK); 8008 } else { 8009 /* 8010 * sa_res_key is not the res holder just 8011 * remove registrants 8012 */ 8013 int found=0; 8014 8015 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 8016 if (sa_res_key != ctl_get_prkey(lun, i)) 8017 continue; 8018 8019 found = 1; 8020 ctl_clr_prkey(lun, i); 8021 lun->pr_key_count--; 8022 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 8023 } 8024 8025 if (!found) { 8026 mtx_unlock(&lun->lun_lock); 8027 free(ctsio->kern_data_ptr, M_CTL); 8028 ctl_set_reservation_conflict(ctsio); 8029 ctl_done((union ctl_io *)ctsio); 8030 return (1); 8031 } 8032 lun->pr_generation++; 8033 mtx_unlock(&lun->lun_lock); 8034 8035 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8036 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8037 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 8038 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8039 persis_io.pr.pr_info.res_type = type; 8040 memcpy(persis_io.pr.pr_info.sa_res_key, 8041 param->serv_act_res_key, 8042 sizeof(param->serv_act_res_key)); 8043 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8044 sizeof(persis_io.pr), M_WAITOK); 8045 } 8046 } 8047 return (0); 8048} 8049 8050static void 8051ctl_pro_preempt_other(struct ctl_lun *lun, union ctl_ha_msg *msg) 8052{ 8053 uint64_t sa_res_key; 8054 int i; 8055 8056 sa_res_key = scsi_8btou64(msg->pr.pr_info.sa_res_key); 8057 8058 if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS 8059 || lun->pr_res_idx == CTL_PR_NO_RESERVATION 8060 || sa_res_key != ctl_get_prkey(lun, lun->pr_res_idx)) { 8061 if (sa_res_key == 0) { 8062 /* 8063 * Unregister everybody else and build UA for 8064 * them 8065 */ 8066 for(i = 0; i < CTL_MAX_INITIATORS; i++) { 8067 if (i == msg->pr.pr_info.residx || 8068 ctl_get_prkey(lun, i) == 0) 8069 continue; 8070 8071 ctl_clr_prkey(lun, i); 8072 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 8073 } 8074 8075 lun->pr_key_count = 1; 8076 lun->pr_res_type = msg->pr.pr_info.res_type; 8077 if (lun->pr_res_type != SPR_TYPE_WR_EX_AR && 8078 lun->pr_res_type != SPR_TYPE_EX_AC_AR) 8079 lun->pr_res_idx = msg->pr.pr_info.residx; 8080 } else { 8081 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 8082 if (sa_res_key == ctl_get_prkey(lun, i)) 8083 continue; 8084 8085 ctl_clr_prkey(lun, i); 8086 lun->pr_key_count--; 8087 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 8088 } 8089 } 8090 } else { 8091 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 8092 if (i == msg->pr.pr_info.residx || 8093 ctl_get_prkey(lun, i) == 0) 8094 continue; 8095 8096 if (sa_res_key == ctl_get_prkey(lun, i)) { 8097 ctl_clr_prkey(lun, i); 8098 lun->pr_key_count--; 8099 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 8100 } else if (msg->pr.pr_info.res_type != lun->pr_res_type 8101 && (lun->pr_res_type == SPR_TYPE_WR_EX_RO || 8102 lun->pr_res_type == SPR_TYPE_EX_AC_RO)) { 8103 ctl_est_ua(lun, i, CTL_UA_RES_RELEASE); 8104 } 8105 } 8106 lun->pr_res_type = msg->pr.pr_info.res_type; 8107 if (lun->pr_res_type != SPR_TYPE_WR_EX_AR && 8108 lun->pr_res_type != SPR_TYPE_EX_AC_AR) 8109 lun->pr_res_idx = msg->pr.pr_info.residx; 8110 else 8111 lun->pr_res_idx = CTL_PR_ALL_REGISTRANTS; 8112 } 8113 lun->pr_generation++; 8114 8115} 8116 8117 8118int 8119ctl_persistent_reserve_out(struct ctl_scsiio *ctsio) 8120{ 8121 int retval; 8122 u_int32_t param_len; 8123 struct scsi_per_res_out *cdb; 8124 struct ctl_lun *lun; 8125 struct scsi_per_res_out_parms* param; 8126 struct ctl_softc *softc; 8127 uint32_t residx; 8128 uint64_t res_key, sa_res_key, key; 8129 uint8_t type; 8130 union ctl_ha_msg persis_io; 8131 int i; 8132 8133 CTL_DEBUG_PRINT(("ctl_persistent_reserve_out\n")); 8134 8135 retval = CTL_RETVAL_COMPLETE; 8136 8137 cdb = (struct scsi_per_res_out *)ctsio->cdb; 8138 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 8139 softc = lun->ctl_softc; 8140 8141 /* 8142 * We only support whole-LUN scope. The scope & type are ignored for 8143 * register, register and ignore existing key and clear. 8144 * We sometimes ignore scope and type on preempts too!! 8145 * Verify reservation type here as well. 8146 */ 8147 type = cdb->scope_type & SPR_TYPE_MASK; 8148 if ((cdb->action == SPRO_RESERVE) 8149 || (cdb->action == SPRO_RELEASE)) { 8150 if ((cdb->scope_type & SPR_SCOPE_MASK) != SPR_LU_SCOPE) { 8151 ctl_set_invalid_field(/*ctsio*/ ctsio, 8152 /*sks_valid*/ 1, 8153 /*command*/ 1, 8154 /*field*/ 2, 8155 /*bit_valid*/ 1, 8156 /*bit*/ 4); 8157 ctl_done((union ctl_io *)ctsio); 8158 return (CTL_RETVAL_COMPLETE); 8159 } 8160 8161 if (type>8 || type==2 || type==4 || type==0) { 8162 ctl_set_invalid_field(/*ctsio*/ ctsio, 8163 /*sks_valid*/ 1, 8164 /*command*/ 1, 8165 /*field*/ 2, 8166 /*bit_valid*/ 1, 8167 /*bit*/ 0); 8168 ctl_done((union ctl_io *)ctsio); 8169 return (CTL_RETVAL_COMPLETE); 8170 } 8171 } 8172 8173 param_len = scsi_4btoul(cdb->length); 8174 8175 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 8176 ctsio->kern_data_ptr = malloc(param_len, M_CTL, M_WAITOK); 8177 ctsio->kern_data_len = param_len; 8178 ctsio->kern_total_len = param_len; 8179 ctsio->kern_data_resid = 0; 8180 ctsio->kern_rel_offset = 0; 8181 ctsio->kern_sg_entries = 0; 8182 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 8183 ctsio->be_move_done = ctl_config_move_done; 8184 ctl_datamove((union ctl_io *)ctsio); 8185 8186 return (CTL_RETVAL_COMPLETE); 8187 } 8188 8189 param = (struct scsi_per_res_out_parms *)ctsio->kern_data_ptr; 8190 8191 residx = ctl_get_initindex(&ctsio->io_hdr.nexus); 8192 res_key = scsi_8btou64(param->res_key.key); 8193 sa_res_key = scsi_8btou64(param->serv_act_res_key); 8194 8195 /* 8196 * Validate the reservation key here except for SPRO_REG_IGNO 8197 * This must be done for all other service actions 8198 */ 8199 if ((cdb->action & SPRO_ACTION_MASK) != SPRO_REG_IGNO) { 8200 mtx_lock(&lun->lun_lock); 8201 if ((key = ctl_get_prkey(lun, residx)) != 0) { 8202 if (res_key != key) { 8203 /* 8204 * The current key passed in doesn't match 8205 * the one the initiator previously 8206 * registered. 8207 */ 8208 mtx_unlock(&lun->lun_lock); 8209 free(ctsio->kern_data_ptr, M_CTL); 8210 ctl_set_reservation_conflict(ctsio); 8211 ctl_done((union ctl_io *)ctsio); 8212 return (CTL_RETVAL_COMPLETE); 8213 } 8214 } else if ((cdb->action & SPRO_ACTION_MASK) != SPRO_REGISTER) { 8215 /* 8216 * We are not registered 8217 */ 8218 mtx_unlock(&lun->lun_lock); 8219 free(ctsio->kern_data_ptr, M_CTL); 8220 ctl_set_reservation_conflict(ctsio); 8221 ctl_done((union ctl_io *)ctsio); 8222 return (CTL_RETVAL_COMPLETE); 8223 } else if (res_key != 0) { 8224 /* 8225 * We are not registered and trying to register but 8226 * the register key isn't zero. 8227 */ 8228 mtx_unlock(&lun->lun_lock); 8229 free(ctsio->kern_data_ptr, M_CTL); 8230 ctl_set_reservation_conflict(ctsio); 8231 ctl_done((union ctl_io *)ctsio); 8232 return (CTL_RETVAL_COMPLETE); 8233 } 8234 mtx_unlock(&lun->lun_lock); 8235 } 8236 8237 switch (cdb->action & SPRO_ACTION_MASK) { 8238 case SPRO_REGISTER: 8239 case SPRO_REG_IGNO: { 8240 8241#if 0 8242 printf("Registration received\n"); 8243#endif 8244 8245 /* 8246 * We don't support any of these options, as we report in 8247 * the read capabilities request (see 8248 * ctl_persistent_reserve_in(), above). 8249 */ 8250 if ((param->flags & SPR_SPEC_I_PT) 8251 || (param->flags & SPR_ALL_TG_PT) 8252 || (param->flags & SPR_APTPL)) { 8253 int bit_ptr; 8254 8255 if (param->flags & SPR_APTPL) 8256 bit_ptr = 0; 8257 else if (param->flags & SPR_ALL_TG_PT) 8258 bit_ptr = 2; 8259 else /* SPR_SPEC_I_PT */ 8260 bit_ptr = 3; 8261 8262 free(ctsio->kern_data_ptr, M_CTL); 8263 ctl_set_invalid_field(ctsio, 8264 /*sks_valid*/ 1, 8265 /*command*/ 0, 8266 /*field*/ 20, 8267 /*bit_valid*/ 1, 8268 /*bit*/ bit_ptr); 8269 ctl_done((union ctl_io *)ctsio); 8270 return (CTL_RETVAL_COMPLETE); 8271 } 8272 8273 mtx_lock(&lun->lun_lock); 8274 8275 /* 8276 * The initiator wants to clear the 8277 * key/unregister. 8278 */ 8279 if (sa_res_key == 0) { 8280 if ((res_key == 0 8281 && (cdb->action & SPRO_ACTION_MASK) == SPRO_REGISTER) 8282 || ((cdb->action & SPRO_ACTION_MASK) == SPRO_REG_IGNO 8283 && ctl_get_prkey(lun, residx) == 0)) { 8284 mtx_unlock(&lun->lun_lock); 8285 goto done; 8286 } 8287 8288 ctl_clr_prkey(lun, residx); 8289 lun->pr_key_count--; 8290 8291 if (residx == lun->pr_res_idx) { 8292 lun->flags &= ~CTL_LUN_PR_RESERVED; 8293 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8294 8295 if ((lun->pr_res_type == SPR_TYPE_WR_EX_RO || 8296 lun->pr_res_type == SPR_TYPE_EX_AC_RO) && 8297 lun->pr_key_count) { 8298 /* 8299 * If the reservation is a registrants 8300 * only type we need to generate a UA 8301 * for other registered inits. The 8302 * sense code should be RESERVATIONS 8303 * RELEASED 8304 */ 8305 8306 for (i = softc->init_min; i < softc->init_max; i++){ 8307 if (ctl_get_prkey(lun, i) == 0) 8308 continue; 8309 ctl_est_ua(lun, i, 8310 CTL_UA_RES_RELEASE); 8311 } 8312 } 8313 lun->pr_res_type = 0; 8314 } else if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS) { 8315 if (lun->pr_key_count==0) { 8316 lun->flags &= ~CTL_LUN_PR_RESERVED; 8317 lun->pr_res_type = 0; 8318 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8319 } 8320 } 8321 lun->pr_generation++; 8322 mtx_unlock(&lun->lun_lock); 8323 8324 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8325 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8326 persis_io.pr.pr_info.action = CTL_PR_UNREG_KEY; 8327 persis_io.pr.pr_info.residx = residx; 8328 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8329 sizeof(persis_io.pr), M_WAITOK); 8330 } else /* sa_res_key != 0 */ { 8331 8332 /* 8333 * If we aren't registered currently then increment 8334 * the key count and set the registered flag. 8335 */ 8336 ctl_alloc_prkey(lun, residx); 8337 if (ctl_get_prkey(lun, residx) == 0) 8338 lun->pr_key_count++; 8339 ctl_set_prkey(lun, residx, sa_res_key); 8340 lun->pr_generation++; 8341 mtx_unlock(&lun->lun_lock); 8342 8343 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8344 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8345 persis_io.pr.pr_info.action = CTL_PR_REG_KEY; 8346 persis_io.pr.pr_info.residx = residx; 8347 memcpy(persis_io.pr.pr_info.sa_res_key, 8348 param->serv_act_res_key, 8349 sizeof(param->serv_act_res_key)); 8350 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8351 sizeof(persis_io.pr), M_WAITOK); 8352 } 8353 8354 break; 8355 } 8356 case SPRO_RESERVE: 8357#if 0 8358 printf("Reserve executed type %d\n", type); 8359#endif 8360 mtx_lock(&lun->lun_lock); 8361 if (lun->flags & CTL_LUN_PR_RESERVED) { 8362 /* 8363 * if this isn't the reservation holder and it's 8364 * not a "all registrants" type or if the type is 8365 * different then we have a conflict 8366 */ 8367 if ((lun->pr_res_idx != residx 8368 && lun->pr_res_idx != CTL_PR_ALL_REGISTRANTS) 8369 || lun->pr_res_type != type) { 8370 mtx_unlock(&lun->lun_lock); 8371 free(ctsio->kern_data_ptr, M_CTL); 8372 ctl_set_reservation_conflict(ctsio); 8373 ctl_done((union ctl_io *)ctsio); 8374 return (CTL_RETVAL_COMPLETE); 8375 } 8376 mtx_unlock(&lun->lun_lock); 8377 } else /* create a reservation */ { 8378 /* 8379 * If it's not an "all registrants" type record 8380 * reservation holder 8381 */ 8382 if (type != SPR_TYPE_WR_EX_AR 8383 && type != SPR_TYPE_EX_AC_AR) 8384 lun->pr_res_idx = residx; /* Res holder */ 8385 else 8386 lun->pr_res_idx = CTL_PR_ALL_REGISTRANTS; 8387 8388 lun->flags |= CTL_LUN_PR_RESERVED; 8389 lun->pr_res_type = type; 8390 8391 mtx_unlock(&lun->lun_lock); 8392 8393 /* send msg to other side */ 8394 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8395 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8396 persis_io.pr.pr_info.action = CTL_PR_RESERVE; 8397 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8398 persis_io.pr.pr_info.res_type = type; 8399 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8400 sizeof(persis_io.pr), M_WAITOK); 8401 } 8402 break; 8403 8404 case SPRO_RELEASE: 8405 mtx_lock(&lun->lun_lock); 8406 if ((lun->flags & CTL_LUN_PR_RESERVED) == 0) { 8407 /* No reservation exists return good status */ 8408 mtx_unlock(&lun->lun_lock); 8409 goto done; 8410 } 8411 /* 8412 * Is this nexus a reservation holder? 8413 */ 8414 if (lun->pr_res_idx != residx 8415 && lun->pr_res_idx != CTL_PR_ALL_REGISTRANTS) { 8416 /* 8417 * not a res holder return good status but 8418 * do nothing 8419 */ 8420 mtx_unlock(&lun->lun_lock); 8421 goto done; 8422 } 8423 8424 if (lun->pr_res_type != type) { 8425 mtx_unlock(&lun->lun_lock); 8426 free(ctsio->kern_data_ptr, M_CTL); 8427 ctl_set_illegal_pr_release(ctsio); 8428 ctl_done((union ctl_io *)ctsio); 8429 return (CTL_RETVAL_COMPLETE); 8430 } 8431 8432 /* okay to release */ 8433 lun->flags &= ~CTL_LUN_PR_RESERVED; 8434 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8435 lun->pr_res_type = 0; 8436 8437 /* 8438 * if this isn't an exclusive access 8439 * res generate UA for all other 8440 * registrants. 8441 */ 8442 if (type != SPR_TYPE_EX_AC 8443 && type != SPR_TYPE_WR_EX) { 8444 for (i = softc->init_min; i < softc->init_max; i++) { 8445 if (i == residx || ctl_get_prkey(lun, i) == 0) 8446 continue; 8447 ctl_est_ua(lun, i, CTL_UA_RES_RELEASE); 8448 } 8449 } 8450 mtx_unlock(&lun->lun_lock); 8451 8452 /* Send msg to other side */ 8453 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8454 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8455 persis_io.pr.pr_info.action = CTL_PR_RELEASE; 8456 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8457 sizeof(persis_io.pr), M_WAITOK); 8458 break; 8459 8460 case SPRO_CLEAR: 8461 /* send msg to other side */ 8462 8463 mtx_lock(&lun->lun_lock); 8464 lun->flags &= ~CTL_LUN_PR_RESERVED; 8465 lun->pr_res_type = 0; 8466 lun->pr_key_count = 0; 8467 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8468 8469 ctl_clr_prkey(lun, residx); 8470 for (i = 0; i < CTL_MAX_INITIATORS; i++) 8471 if (ctl_get_prkey(lun, i) != 0) { 8472 ctl_clr_prkey(lun, i); 8473 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 8474 } 8475 lun->pr_generation++; 8476 mtx_unlock(&lun->lun_lock); 8477 8478 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8479 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8480 persis_io.pr.pr_info.action = CTL_PR_CLEAR; 8481 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8482 sizeof(persis_io.pr), M_WAITOK); 8483 break; 8484 8485 case SPRO_PREEMPT: 8486 case SPRO_PRE_ABO: { 8487 int nretval; 8488 8489 nretval = ctl_pro_preempt(softc, lun, res_key, sa_res_key, type, 8490 residx, ctsio, cdb, param); 8491 if (nretval != 0) 8492 return (CTL_RETVAL_COMPLETE); 8493 break; 8494 } 8495 default: 8496 panic("%s: Invalid PR type %#x", __func__, cdb->action); 8497 } 8498 8499done: 8500 free(ctsio->kern_data_ptr, M_CTL); 8501 ctl_set_success(ctsio); 8502 ctl_done((union ctl_io *)ctsio); 8503 8504 return (retval); 8505} 8506 8507/* 8508 * This routine is for handling a message from the other SC pertaining to 8509 * persistent reserve out. All the error checking will have been done 8510 * so only perorming the action need be done here to keep the two 8511 * in sync. 8512 */ 8513static void 8514ctl_hndl_per_res_out_on_other_sc(union ctl_ha_msg *msg) 8515{ 8516 struct ctl_softc *softc = control_softc; 8517 struct ctl_lun *lun; 8518 int i; 8519 uint32_t residx, targ_lun; 8520 8521 targ_lun = msg->hdr.nexus.targ_mapped_lun; 8522 mtx_lock(&softc->ctl_lock); 8523 if ((targ_lun >= CTL_MAX_LUNS) || 8524 ((lun = softc->ctl_luns[targ_lun]) == NULL)) { 8525 mtx_unlock(&softc->ctl_lock); 8526 return; 8527 } 8528 mtx_lock(&lun->lun_lock); 8529 mtx_unlock(&softc->ctl_lock); 8530 if (lun->flags & CTL_LUN_DISABLED) { 8531 mtx_unlock(&lun->lun_lock); 8532 return; 8533 } 8534 residx = ctl_get_initindex(&msg->hdr.nexus); 8535 switch(msg->pr.pr_info.action) { 8536 case CTL_PR_REG_KEY: 8537 ctl_alloc_prkey(lun, msg->pr.pr_info.residx); 8538 if (ctl_get_prkey(lun, msg->pr.pr_info.residx) == 0) 8539 lun->pr_key_count++; 8540 ctl_set_prkey(lun, msg->pr.pr_info.residx, 8541 scsi_8btou64(msg->pr.pr_info.sa_res_key)); 8542 lun->pr_generation++; 8543 break; 8544 8545 case CTL_PR_UNREG_KEY: 8546 ctl_clr_prkey(lun, msg->pr.pr_info.residx); 8547 lun->pr_key_count--; 8548 8549 /* XXX Need to see if the reservation has been released */ 8550 /* if so do we need to generate UA? */ 8551 if (msg->pr.pr_info.residx == lun->pr_res_idx) { 8552 lun->flags &= ~CTL_LUN_PR_RESERVED; 8553 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8554 8555 if ((lun->pr_res_type == SPR_TYPE_WR_EX_RO || 8556 lun->pr_res_type == SPR_TYPE_EX_AC_RO) && 8557 lun->pr_key_count) { 8558 /* 8559 * If the reservation is a registrants 8560 * only type we need to generate a UA 8561 * for other registered inits. The 8562 * sense code should be RESERVATIONS 8563 * RELEASED 8564 */ 8565 8566 for (i = softc->init_min; i < softc->init_max; i++) { 8567 if (ctl_get_prkey(lun, i) == 0) 8568 continue; 8569 8570 ctl_est_ua(lun, i, CTL_UA_RES_RELEASE); 8571 } 8572 } 8573 lun->pr_res_type = 0; 8574 } else if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS) { 8575 if (lun->pr_key_count==0) { 8576 lun->flags &= ~CTL_LUN_PR_RESERVED; 8577 lun->pr_res_type = 0; 8578 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8579 } 8580 } 8581 lun->pr_generation++; 8582 break; 8583 8584 case CTL_PR_RESERVE: 8585 lun->flags |= CTL_LUN_PR_RESERVED; 8586 lun->pr_res_type = msg->pr.pr_info.res_type; 8587 lun->pr_res_idx = msg->pr.pr_info.residx; 8588 8589 break; 8590 8591 case CTL_PR_RELEASE: 8592 /* 8593 * if this isn't an exclusive access res generate UA for all 8594 * other registrants. 8595 */ 8596 if (lun->pr_res_type != SPR_TYPE_EX_AC && 8597 lun->pr_res_type != SPR_TYPE_WR_EX) { 8598 for (i = softc->init_min; i < softc->init_max; i++) 8599 if (i == residx || ctl_get_prkey(lun, i) == 0) 8600 continue; 8601 ctl_est_ua(lun, i, CTL_UA_RES_RELEASE); 8602 } 8603 8604 lun->flags &= ~CTL_LUN_PR_RESERVED; 8605 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8606 lun->pr_res_type = 0; 8607 break; 8608 8609 case CTL_PR_PREEMPT: 8610 ctl_pro_preempt_other(lun, msg); 8611 break; 8612 case CTL_PR_CLEAR: 8613 lun->flags &= ~CTL_LUN_PR_RESERVED; 8614 lun->pr_res_type = 0; 8615 lun->pr_key_count = 0; 8616 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8617 8618 for (i=0; i < CTL_MAX_INITIATORS; i++) { 8619 if (ctl_get_prkey(lun, i) == 0) 8620 continue; 8621 ctl_clr_prkey(lun, i); 8622 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 8623 } 8624 lun->pr_generation++; 8625 break; 8626 } 8627 8628 mtx_unlock(&lun->lun_lock); 8629} 8630 8631int 8632ctl_read_write(struct ctl_scsiio *ctsio) 8633{ 8634 struct ctl_lun *lun; 8635 struct ctl_lba_len_flags *lbalen; 8636 uint64_t lba; 8637 uint32_t num_blocks; 8638 int flags, retval; 8639 int isread; 8640 8641 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 8642 8643 CTL_DEBUG_PRINT(("ctl_read_write: command: %#x\n", ctsio->cdb[0])); 8644 8645 flags = 0; 8646 isread = ctsio->cdb[0] == READ_6 || ctsio->cdb[0] == READ_10 8647 || ctsio->cdb[0] == READ_12 || ctsio->cdb[0] == READ_16; 8648 switch (ctsio->cdb[0]) { 8649 case READ_6: 8650 case WRITE_6: { 8651 struct scsi_rw_6 *cdb; 8652 8653 cdb = (struct scsi_rw_6 *)ctsio->cdb; 8654 8655 lba = scsi_3btoul(cdb->addr); 8656 /* only 5 bits are valid in the most significant address byte */ 8657 lba &= 0x1fffff; 8658 num_blocks = cdb->length; 8659 /* 8660 * This is correct according to SBC-2. 8661 */ 8662 if (num_blocks == 0) 8663 num_blocks = 256; 8664 break; 8665 } 8666 case READ_10: 8667 case WRITE_10: { 8668 struct scsi_rw_10 *cdb; 8669 8670 cdb = (struct scsi_rw_10 *)ctsio->cdb; 8671 if (cdb->byte2 & SRW10_FUA) 8672 flags |= CTL_LLF_FUA; 8673 if (cdb->byte2 & SRW10_DPO) 8674 flags |= CTL_LLF_DPO; 8675 lba = scsi_4btoul(cdb->addr); 8676 num_blocks = scsi_2btoul(cdb->length); 8677 break; 8678 } 8679 case WRITE_VERIFY_10: { 8680 struct scsi_write_verify_10 *cdb; 8681 8682 cdb = (struct scsi_write_verify_10 *)ctsio->cdb; 8683 flags |= CTL_LLF_FUA; 8684 if (cdb->byte2 & SWV_DPO) 8685 flags |= CTL_LLF_DPO; 8686 lba = scsi_4btoul(cdb->addr); 8687 num_blocks = scsi_2btoul(cdb->length); 8688 break; 8689 } 8690 case READ_12: 8691 case WRITE_12: { 8692 struct scsi_rw_12 *cdb; 8693 8694 cdb = (struct scsi_rw_12 *)ctsio->cdb; 8695 if (cdb->byte2 & SRW12_FUA) 8696 flags |= CTL_LLF_FUA; 8697 if (cdb->byte2 & SRW12_DPO) 8698 flags |= CTL_LLF_DPO; 8699 lba = scsi_4btoul(cdb->addr); 8700 num_blocks = scsi_4btoul(cdb->length); 8701 break; 8702 } 8703 case WRITE_VERIFY_12: { 8704 struct scsi_write_verify_12 *cdb; 8705 8706 cdb = (struct scsi_write_verify_12 *)ctsio->cdb; 8707 flags |= CTL_LLF_FUA; 8708 if (cdb->byte2 & SWV_DPO) 8709 flags |= CTL_LLF_DPO; 8710 lba = scsi_4btoul(cdb->addr); 8711 num_blocks = scsi_4btoul(cdb->length); 8712 break; 8713 } 8714 case READ_16: 8715 case WRITE_16: { 8716 struct scsi_rw_16 *cdb; 8717 8718 cdb = (struct scsi_rw_16 *)ctsio->cdb; 8719 if (cdb->byte2 & SRW12_FUA) 8720 flags |= CTL_LLF_FUA; 8721 if (cdb->byte2 & SRW12_DPO) 8722 flags |= CTL_LLF_DPO; 8723 lba = scsi_8btou64(cdb->addr); 8724 num_blocks = scsi_4btoul(cdb->length); 8725 break; 8726 } 8727 case WRITE_ATOMIC_16: { 8728 struct scsi_write_atomic_16 *cdb; 8729 8730 if (lun->be_lun->atomicblock == 0) { 8731 ctl_set_invalid_opcode(ctsio); 8732 ctl_done((union ctl_io *)ctsio); 8733 return (CTL_RETVAL_COMPLETE); 8734 } 8735 8736 cdb = (struct scsi_write_atomic_16 *)ctsio->cdb; 8737 if (cdb->byte2 & SRW12_FUA) 8738 flags |= CTL_LLF_FUA; 8739 if (cdb->byte2 & SRW12_DPO) 8740 flags |= CTL_LLF_DPO; 8741 lba = scsi_8btou64(cdb->addr); 8742 num_blocks = scsi_2btoul(cdb->length); 8743 if (num_blocks > lun->be_lun->atomicblock) { 8744 ctl_set_invalid_field(ctsio, /*sks_valid*/ 1, 8745 /*command*/ 1, /*field*/ 12, /*bit_valid*/ 0, 8746 /*bit*/ 0); 8747 ctl_done((union ctl_io *)ctsio); 8748 return (CTL_RETVAL_COMPLETE); 8749 } 8750 break; 8751 } 8752 case WRITE_VERIFY_16: { 8753 struct scsi_write_verify_16 *cdb; 8754 8755 cdb = (struct scsi_write_verify_16 *)ctsio->cdb; 8756 flags |= CTL_LLF_FUA; 8757 if (cdb->byte2 & SWV_DPO) 8758 flags |= CTL_LLF_DPO; 8759 lba = scsi_8btou64(cdb->addr); 8760 num_blocks = scsi_4btoul(cdb->length); 8761 break; 8762 } 8763 default: 8764 /* 8765 * We got a command we don't support. This shouldn't 8766 * happen, commands should be filtered out above us. 8767 */ 8768 ctl_set_invalid_opcode(ctsio); 8769 ctl_done((union ctl_io *)ctsio); 8770 8771 return (CTL_RETVAL_COMPLETE); 8772 break; /* NOTREACHED */ 8773 } 8774 8775 /* 8776 * The first check is to make sure we're in bounds, the second 8777 * check is to catch wrap-around problems. If the lba + num blocks 8778 * is less than the lba, then we've wrapped around and the block 8779 * range is invalid anyway. 8780 */ 8781 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 8782 || ((lba + num_blocks) < lba)) { 8783 ctl_set_lba_out_of_range(ctsio); 8784 ctl_done((union ctl_io *)ctsio); 8785 return (CTL_RETVAL_COMPLETE); 8786 } 8787 8788 /* 8789 * According to SBC-3, a transfer length of 0 is not an error. 8790 * Note that this cannot happen with WRITE(6) or READ(6), since 0 8791 * translates to 256 blocks for those commands. 8792 */ 8793 if (num_blocks == 0) { 8794 ctl_set_success(ctsio); 8795 ctl_done((union ctl_io *)ctsio); 8796 return (CTL_RETVAL_COMPLETE); 8797 } 8798 8799 /* Set FUA and/or DPO if caches are disabled. */ 8800 if (isread) { 8801 if ((lun->mode_pages.caching_page[CTL_PAGE_CURRENT].flags1 & 8802 SCP_RCD) != 0) 8803 flags |= CTL_LLF_FUA | CTL_LLF_DPO; 8804 } else { 8805 if ((lun->mode_pages.caching_page[CTL_PAGE_CURRENT].flags1 & 8806 SCP_WCE) == 0) 8807 flags |= CTL_LLF_FUA; 8808 } 8809 8810 lbalen = (struct ctl_lba_len_flags *) 8811 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 8812 lbalen->lba = lba; 8813 lbalen->len = num_blocks; 8814 lbalen->flags = (isread ? CTL_LLF_READ : CTL_LLF_WRITE) | flags; 8815 8816 ctsio->kern_total_len = num_blocks * lun->be_lun->blocksize; 8817 ctsio->kern_rel_offset = 0; 8818 8819 CTL_DEBUG_PRINT(("ctl_read_write: calling data_submit()\n")); 8820 8821 retval = lun->backend->data_submit((union ctl_io *)ctsio); 8822 return (retval); 8823} 8824 8825static int 8826ctl_cnw_cont(union ctl_io *io) 8827{ 8828 struct ctl_scsiio *ctsio; 8829 struct ctl_lun *lun; 8830 struct ctl_lba_len_flags *lbalen; 8831 int retval; 8832 8833 ctsio = &io->scsiio; 8834 ctsio->io_hdr.status = CTL_STATUS_NONE; 8835 ctsio->io_hdr.flags &= ~CTL_FLAG_IO_CONT; 8836 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 8837 lbalen = (struct ctl_lba_len_flags *) 8838 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 8839 lbalen->flags &= ~CTL_LLF_COMPARE; 8840 lbalen->flags |= CTL_LLF_WRITE; 8841 8842 CTL_DEBUG_PRINT(("ctl_cnw_cont: calling data_submit()\n")); 8843 retval = lun->backend->data_submit((union ctl_io *)ctsio); 8844 return (retval); 8845} 8846 8847int 8848ctl_cnw(struct ctl_scsiio *ctsio) 8849{ 8850 struct ctl_lun *lun; 8851 struct ctl_lba_len_flags *lbalen; 8852 uint64_t lba; 8853 uint32_t num_blocks; 8854 int flags, retval; 8855 8856 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 8857 8858 CTL_DEBUG_PRINT(("ctl_cnw: command: %#x\n", ctsio->cdb[0])); 8859 8860 flags = 0; 8861 switch (ctsio->cdb[0]) { 8862 case COMPARE_AND_WRITE: { 8863 struct scsi_compare_and_write *cdb; 8864 8865 cdb = (struct scsi_compare_and_write *)ctsio->cdb; 8866 if (cdb->byte2 & SRW10_FUA) 8867 flags |= CTL_LLF_FUA; 8868 if (cdb->byte2 & SRW10_DPO) 8869 flags |= CTL_LLF_DPO; 8870 lba = scsi_8btou64(cdb->addr); 8871 num_blocks = cdb->length; 8872 break; 8873 } 8874 default: 8875 /* 8876 * We got a command we don't support. This shouldn't 8877 * happen, commands should be filtered out above us. 8878 */ 8879 ctl_set_invalid_opcode(ctsio); 8880 ctl_done((union ctl_io *)ctsio); 8881 8882 return (CTL_RETVAL_COMPLETE); 8883 break; /* NOTREACHED */ 8884 } 8885 8886 /* 8887 * The first check is to make sure we're in bounds, the second 8888 * check is to catch wrap-around problems. If the lba + num blocks 8889 * is less than the lba, then we've wrapped around and the block 8890 * range is invalid anyway. 8891 */ 8892 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 8893 || ((lba + num_blocks) < lba)) { 8894 ctl_set_lba_out_of_range(ctsio); 8895 ctl_done((union ctl_io *)ctsio); 8896 return (CTL_RETVAL_COMPLETE); 8897 } 8898 8899 /* 8900 * According to SBC-3, a transfer length of 0 is not an error. 8901 */ 8902 if (num_blocks == 0) { 8903 ctl_set_success(ctsio); 8904 ctl_done((union ctl_io *)ctsio); 8905 return (CTL_RETVAL_COMPLETE); 8906 } 8907 8908 /* Set FUA if write cache is disabled. */ 8909 if ((lun->mode_pages.caching_page[CTL_PAGE_CURRENT].flags1 & 8910 SCP_WCE) == 0) 8911 flags |= CTL_LLF_FUA; 8912 8913 ctsio->kern_total_len = 2 * num_blocks * lun->be_lun->blocksize; 8914 ctsio->kern_rel_offset = 0; 8915 8916 /* 8917 * Set the IO_CONT flag, so that if this I/O gets passed to 8918 * ctl_data_submit_done(), it'll get passed back to 8919 * ctl_ctl_cnw_cont() for further processing. 8920 */ 8921 ctsio->io_hdr.flags |= CTL_FLAG_IO_CONT; 8922 ctsio->io_cont = ctl_cnw_cont; 8923 8924 lbalen = (struct ctl_lba_len_flags *) 8925 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 8926 lbalen->lba = lba; 8927 lbalen->len = num_blocks; 8928 lbalen->flags = CTL_LLF_COMPARE | flags; 8929 8930 CTL_DEBUG_PRINT(("ctl_cnw: calling data_submit()\n")); 8931 retval = lun->backend->data_submit((union ctl_io *)ctsio); 8932 return (retval); 8933} 8934 8935int 8936ctl_verify(struct ctl_scsiio *ctsio) 8937{ 8938 struct ctl_lun *lun; 8939 struct ctl_lba_len_flags *lbalen; 8940 uint64_t lba; 8941 uint32_t num_blocks; 8942 int bytchk, flags; 8943 int retval; 8944 8945 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 8946 8947 CTL_DEBUG_PRINT(("ctl_verify: command: %#x\n", ctsio->cdb[0])); 8948 8949 bytchk = 0; 8950 flags = CTL_LLF_FUA; 8951 switch (ctsio->cdb[0]) { 8952 case VERIFY_10: { 8953 struct scsi_verify_10 *cdb; 8954 8955 cdb = (struct scsi_verify_10 *)ctsio->cdb; 8956 if (cdb->byte2 & SVFY_BYTCHK) 8957 bytchk = 1; 8958 if (cdb->byte2 & SVFY_DPO) 8959 flags |= CTL_LLF_DPO; 8960 lba = scsi_4btoul(cdb->addr); 8961 num_blocks = scsi_2btoul(cdb->length); 8962 break; 8963 } 8964 case VERIFY_12: { 8965 struct scsi_verify_12 *cdb; 8966 8967 cdb = (struct scsi_verify_12 *)ctsio->cdb; 8968 if (cdb->byte2 & SVFY_BYTCHK) 8969 bytchk = 1; 8970 if (cdb->byte2 & SVFY_DPO) 8971 flags |= CTL_LLF_DPO; 8972 lba = scsi_4btoul(cdb->addr); 8973 num_blocks = scsi_4btoul(cdb->length); 8974 break; 8975 } 8976 case VERIFY_16: { 8977 struct scsi_rw_16 *cdb; 8978 8979 cdb = (struct scsi_rw_16 *)ctsio->cdb; 8980 if (cdb->byte2 & SVFY_BYTCHK) 8981 bytchk = 1; 8982 if (cdb->byte2 & SVFY_DPO) 8983 flags |= CTL_LLF_DPO; 8984 lba = scsi_8btou64(cdb->addr); 8985 num_blocks = scsi_4btoul(cdb->length); 8986 break; 8987 } 8988 default: 8989 /* 8990 * We got a command we don't support. This shouldn't 8991 * happen, commands should be filtered out above us. 8992 */ 8993 ctl_set_invalid_opcode(ctsio); 8994 ctl_done((union ctl_io *)ctsio); 8995 return (CTL_RETVAL_COMPLETE); 8996 } 8997 8998 /* 8999 * The first check is to make sure we're in bounds, the second 9000 * check is to catch wrap-around problems. If the lba + num blocks 9001 * is less than the lba, then we've wrapped around and the block 9002 * range is invalid anyway. 9003 */ 9004 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 9005 || ((lba + num_blocks) < lba)) { 9006 ctl_set_lba_out_of_range(ctsio); 9007 ctl_done((union ctl_io *)ctsio); 9008 return (CTL_RETVAL_COMPLETE); 9009 } 9010 9011 /* 9012 * According to SBC-3, a transfer length of 0 is not an error. 9013 */ 9014 if (num_blocks == 0) { 9015 ctl_set_success(ctsio); 9016 ctl_done((union ctl_io *)ctsio); 9017 return (CTL_RETVAL_COMPLETE); 9018 } 9019 9020 lbalen = (struct ctl_lba_len_flags *) 9021 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 9022 lbalen->lba = lba; 9023 lbalen->len = num_blocks; 9024 if (bytchk) { 9025 lbalen->flags = CTL_LLF_COMPARE | flags; 9026 ctsio->kern_total_len = num_blocks * lun->be_lun->blocksize; 9027 } else { 9028 lbalen->flags = CTL_LLF_VERIFY | flags; 9029 ctsio->kern_total_len = 0; 9030 } 9031 ctsio->kern_rel_offset = 0; 9032 9033 CTL_DEBUG_PRINT(("ctl_verify: calling data_submit()\n")); 9034 retval = lun->backend->data_submit((union ctl_io *)ctsio); 9035 return (retval); 9036} 9037 9038int 9039ctl_report_luns(struct ctl_scsiio *ctsio) 9040{ 9041 struct ctl_softc *softc; 9042 struct scsi_report_luns *cdb; 9043 struct scsi_report_luns_data *lun_data; 9044 struct ctl_lun *lun, *request_lun; 9045 struct ctl_port *port; 9046 int num_luns, retval; 9047 uint32_t alloc_len, lun_datalen; 9048 int num_filled; 9049 uint32_t initidx, targ_lun_id, lun_id; 9050 9051 retval = CTL_RETVAL_COMPLETE; 9052 cdb = (struct scsi_report_luns *)ctsio->cdb; 9053 port = ctl_io_port(&ctsio->io_hdr); 9054 softc = port->ctl_softc; 9055 9056 CTL_DEBUG_PRINT(("ctl_report_luns\n")); 9057 9058 mtx_lock(&softc->ctl_lock); 9059 num_luns = 0; 9060 for (targ_lun_id = 0; targ_lun_id < CTL_MAX_LUNS; targ_lun_id++) { 9061 if (ctl_lun_map_from_port(port, targ_lun_id) < CTL_MAX_LUNS) 9062 num_luns++; 9063 } 9064 mtx_unlock(&softc->ctl_lock); 9065 9066 switch (cdb->select_report) { 9067 case RPL_REPORT_DEFAULT: 9068 case RPL_REPORT_ALL: 9069 case RPL_REPORT_NONSUBSID: 9070 break; 9071 case RPL_REPORT_WELLKNOWN: 9072 case RPL_REPORT_ADMIN: 9073 case RPL_REPORT_CONGLOM: 9074 num_luns = 0; 9075 break; 9076 default: 9077 ctl_set_invalid_field(ctsio, 9078 /*sks_valid*/ 1, 9079 /*command*/ 1, 9080 /*field*/ 2, 9081 /*bit_valid*/ 0, 9082 /*bit*/ 0); 9083 ctl_done((union ctl_io *)ctsio); 9084 return (retval); 9085 break; /* NOTREACHED */ 9086 } 9087 9088 alloc_len = scsi_4btoul(cdb->length); 9089 /* 9090 * The initiator has to allocate at least 16 bytes for this request, 9091 * so he can at least get the header and the first LUN. Otherwise 9092 * we reject the request (per SPC-3 rev 14, section 6.21). 9093 */ 9094 if (alloc_len < (sizeof(struct scsi_report_luns_data) + 9095 sizeof(struct scsi_report_luns_lundata))) { 9096 ctl_set_invalid_field(ctsio, 9097 /*sks_valid*/ 1, 9098 /*command*/ 1, 9099 /*field*/ 6, 9100 /*bit_valid*/ 0, 9101 /*bit*/ 0); 9102 ctl_done((union ctl_io *)ctsio); 9103 return (retval); 9104 } 9105 9106 request_lun = (struct ctl_lun *) 9107 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9108 9109 lun_datalen = sizeof(*lun_data) + 9110 (num_luns * sizeof(struct scsi_report_luns_lundata)); 9111 9112 ctsio->kern_data_ptr = malloc(lun_datalen, M_CTL, M_WAITOK | M_ZERO); 9113 lun_data = (struct scsi_report_luns_data *)ctsio->kern_data_ptr; 9114 ctsio->kern_sg_entries = 0; 9115 9116 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 9117 9118 mtx_lock(&softc->ctl_lock); 9119 for (targ_lun_id = 0, num_filled = 0; targ_lun_id < CTL_MAX_LUNS && num_filled < num_luns; targ_lun_id++) { 9120 lun_id = ctl_lun_map_from_port(port, targ_lun_id); 9121 if (lun_id >= CTL_MAX_LUNS) 9122 continue; 9123 lun = softc->ctl_luns[lun_id]; 9124 if (lun == NULL) 9125 continue; 9126 9127 be64enc(lun_data->luns[num_filled++].lundata, 9128 ctl_encode_lun(targ_lun_id)); 9129 9130 /* 9131 * According to SPC-3, rev 14 section 6.21: 9132 * 9133 * "The execution of a REPORT LUNS command to any valid and 9134 * installed logical unit shall clear the REPORTED LUNS DATA 9135 * HAS CHANGED unit attention condition for all logical 9136 * units of that target with respect to the requesting 9137 * initiator. A valid and installed logical unit is one 9138 * having a PERIPHERAL QUALIFIER of 000b in the standard 9139 * INQUIRY data (see 6.4.2)." 9140 * 9141 * If request_lun is NULL, the LUN this report luns command 9142 * was issued to is either disabled or doesn't exist. In that 9143 * case, we shouldn't clear any pending lun change unit 9144 * attention. 9145 */ 9146 if (request_lun != NULL) { 9147 mtx_lock(&lun->lun_lock); 9148 ctl_clr_ua(lun, initidx, CTL_UA_LUN_CHANGE); 9149 mtx_unlock(&lun->lun_lock); 9150 } 9151 } 9152 mtx_unlock(&softc->ctl_lock); 9153 9154 /* 9155 * It's quite possible that we've returned fewer LUNs than we allocated 9156 * space for. Trim it. 9157 */ 9158 lun_datalen = sizeof(*lun_data) + 9159 (num_filled * sizeof(struct scsi_report_luns_lundata)); 9160 9161 if (lun_datalen < alloc_len) { 9162 ctsio->residual = alloc_len - lun_datalen; 9163 ctsio->kern_data_len = lun_datalen; 9164 ctsio->kern_total_len = lun_datalen; 9165 } else { 9166 ctsio->residual = 0; 9167 ctsio->kern_data_len = alloc_len; 9168 ctsio->kern_total_len = alloc_len; 9169 } 9170 ctsio->kern_data_resid = 0; 9171 ctsio->kern_rel_offset = 0; 9172 ctsio->kern_sg_entries = 0; 9173 9174 /* 9175 * We set this to the actual data length, regardless of how much 9176 * space we actually have to return results. If the user looks at 9177 * this value, he'll know whether or not he allocated enough space 9178 * and reissue the command if necessary. We don't support well 9179 * known logical units, so if the user asks for that, return none. 9180 */ 9181 scsi_ulto4b(lun_datalen - 8, lun_data->length); 9182 9183 /* 9184 * We can only return SCSI_STATUS_CHECK_COND when we can't satisfy 9185 * this request. 9186 */ 9187 ctl_set_success(ctsio); 9188 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9189 ctsio->be_move_done = ctl_config_move_done; 9190 ctl_datamove((union ctl_io *)ctsio); 9191 return (retval); 9192} 9193 9194int 9195ctl_request_sense(struct ctl_scsiio *ctsio) 9196{ 9197 struct scsi_request_sense *cdb; 9198 struct scsi_sense_data *sense_ptr; 9199 struct ctl_softc *ctl_softc; 9200 struct ctl_lun *lun; 9201 uint32_t initidx; 9202 int have_error; 9203 scsi_sense_data_type sense_format; 9204 ctl_ua_type ua_type; 9205 9206 cdb = (struct scsi_request_sense *)ctsio->cdb; 9207 9208 ctl_softc = control_softc; 9209 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9210 9211 CTL_DEBUG_PRINT(("ctl_request_sense\n")); 9212 9213 /* 9214 * Determine which sense format the user wants. 9215 */ 9216 if (cdb->byte2 & SRS_DESC) 9217 sense_format = SSD_TYPE_DESC; 9218 else 9219 sense_format = SSD_TYPE_FIXED; 9220 9221 ctsio->kern_data_ptr = malloc(sizeof(*sense_ptr), M_CTL, M_WAITOK); 9222 sense_ptr = (struct scsi_sense_data *)ctsio->kern_data_ptr; 9223 ctsio->kern_sg_entries = 0; 9224 9225 /* 9226 * struct scsi_sense_data, which is currently set to 256 bytes, is 9227 * larger than the largest allowed value for the length field in the 9228 * REQUEST SENSE CDB, which is 252 bytes as of SPC-4. 9229 */ 9230 ctsio->residual = 0; 9231 ctsio->kern_data_len = cdb->length; 9232 ctsio->kern_total_len = cdb->length; 9233 9234 ctsio->kern_data_resid = 0; 9235 ctsio->kern_rel_offset = 0; 9236 ctsio->kern_sg_entries = 0; 9237 9238 /* 9239 * If we don't have a LUN, we don't have any pending sense. 9240 */ 9241 if (lun == NULL) 9242 goto no_sense; 9243 9244 have_error = 0; 9245 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 9246 /* 9247 * Check for pending sense, and then for pending unit attentions. 9248 * Pending sense gets returned first, then pending unit attentions. 9249 */ 9250 mtx_lock(&lun->lun_lock); 9251#ifdef CTL_WITH_CA 9252 if (ctl_is_set(lun->have_ca, initidx)) { 9253 scsi_sense_data_type stored_format; 9254 9255 /* 9256 * Check to see which sense format was used for the stored 9257 * sense data. 9258 */ 9259 stored_format = scsi_sense_type(&lun->pending_sense[initidx]); 9260 9261 /* 9262 * If the user requested a different sense format than the 9263 * one we stored, then we need to convert it to the other 9264 * format. If we're going from descriptor to fixed format 9265 * sense data, we may lose things in translation, depending 9266 * on what options were used. 9267 * 9268 * If the stored format is SSD_TYPE_NONE (i.e. invalid), 9269 * for some reason we'll just copy it out as-is. 9270 */ 9271 if ((stored_format == SSD_TYPE_FIXED) 9272 && (sense_format == SSD_TYPE_DESC)) 9273 ctl_sense_to_desc((struct scsi_sense_data_fixed *) 9274 &lun->pending_sense[initidx], 9275 (struct scsi_sense_data_desc *)sense_ptr); 9276 else if ((stored_format == SSD_TYPE_DESC) 9277 && (sense_format == SSD_TYPE_FIXED)) 9278 ctl_sense_to_fixed((struct scsi_sense_data_desc *) 9279 &lun->pending_sense[initidx], 9280 (struct scsi_sense_data_fixed *)sense_ptr); 9281 else 9282 memcpy(sense_ptr, &lun->pending_sense[initidx], 9283 MIN(sizeof(*sense_ptr), 9284 sizeof(lun->pending_sense[initidx]))); 9285 9286 ctl_clear_mask(lun->have_ca, initidx); 9287 have_error = 1; 9288 } else 9289#endif 9290 { 9291 ua_type = ctl_build_ua(lun, initidx, sense_ptr, sense_format); 9292 if (ua_type != CTL_UA_NONE) 9293 have_error = 1; 9294 if (ua_type == CTL_UA_LUN_CHANGE) { 9295 mtx_unlock(&lun->lun_lock); 9296 mtx_lock(&ctl_softc->ctl_lock); 9297 ctl_clr_ua_allluns(ctl_softc, initidx, ua_type); 9298 mtx_unlock(&ctl_softc->ctl_lock); 9299 mtx_lock(&lun->lun_lock); 9300 } 9301 9302 } 9303 mtx_unlock(&lun->lun_lock); 9304 9305 /* 9306 * We already have a pending error, return it. 9307 */ 9308 if (have_error != 0) { 9309 /* 9310 * We report the SCSI status as OK, since the status of the 9311 * request sense command itself is OK. 9312 * We report 0 for the sense length, because we aren't doing 9313 * autosense in this case. We're reporting sense as 9314 * parameter data. 9315 */ 9316 ctl_set_success(ctsio); 9317 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9318 ctsio->be_move_done = ctl_config_move_done; 9319 ctl_datamove((union ctl_io *)ctsio); 9320 return (CTL_RETVAL_COMPLETE); 9321 } 9322 9323no_sense: 9324 9325 /* 9326 * No sense information to report, so we report that everything is 9327 * okay. 9328 */ 9329 ctl_set_sense_data(sense_ptr, 9330 lun, 9331 sense_format, 9332 /*current_error*/ 1, 9333 /*sense_key*/ SSD_KEY_NO_SENSE, 9334 /*asc*/ 0x00, 9335 /*ascq*/ 0x00, 9336 SSD_ELEM_NONE); 9337 9338 /* 9339 * We report 0 for the sense length, because we aren't doing 9340 * autosense in this case. We're reporting sense as parameter data. 9341 */ 9342 ctl_set_success(ctsio); 9343 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9344 ctsio->be_move_done = ctl_config_move_done; 9345 ctl_datamove((union ctl_io *)ctsio); 9346 return (CTL_RETVAL_COMPLETE); 9347} 9348 9349int 9350ctl_tur(struct ctl_scsiio *ctsio) 9351{ 9352 9353 CTL_DEBUG_PRINT(("ctl_tur\n")); 9354 9355 ctl_set_success(ctsio); 9356 ctl_done((union ctl_io *)ctsio); 9357 9358 return (CTL_RETVAL_COMPLETE); 9359} 9360 9361/* 9362 * SCSI VPD page 0x00, the Supported VPD Pages page. 9363 */ 9364static int 9365ctl_inquiry_evpd_supported(struct ctl_scsiio *ctsio, int alloc_len) 9366{ 9367 struct scsi_vpd_supported_pages *pages; 9368 int sup_page_size; 9369 struct ctl_lun *lun; 9370 int p; 9371 9372 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9373 9374 sup_page_size = sizeof(struct scsi_vpd_supported_pages) * 9375 SCSI_EVPD_NUM_SUPPORTED_PAGES; 9376 ctsio->kern_data_ptr = malloc(sup_page_size, M_CTL, M_WAITOK | M_ZERO); 9377 pages = (struct scsi_vpd_supported_pages *)ctsio->kern_data_ptr; 9378 ctsio->kern_sg_entries = 0; 9379 9380 if (sup_page_size < alloc_len) { 9381 ctsio->residual = alloc_len - sup_page_size; 9382 ctsio->kern_data_len = sup_page_size; 9383 ctsio->kern_total_len = sup_page_size; 9384 } else { 9385 ctsio->residual = 0; 9386 ctsio->kern_data_len = alloc_len; 9387 ctsio->kern_total_len = alloc_len; 9388 } 9389 ctsio->kern_data_resid = 0; 9390 ctsio->kern_rel_offset = 0; 9391 ctsio->kern_sg_entries = 0; 9392 9393 /* 9394 * The control device is always connected. The disk device, on the 9395 * other hand, may not be online all the time. Need to change this 9396 * to figure out whether the disk device is actually online or not. 9397 */ 9398 if (lun != NULL) 9399 pages->device = (SID_QUAL_LU_CONNECTED << 5) | 9400 lun->be_lun->lun_type; 9401 else 9402 pages->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9403 9404 p = 0; 9405 /* Supported VPD pages */ 9406 pages->page_list[p++] = SVPD_SUPPORTED_PAGES; 9407 /* Serial Number */ 9408 pages->page_list[p++] = SVPD_UNIT_SERIAL_NUMBER; 9409 /* Device Identification */ 9410 pages->page_list[p++] = SVPD_DEVICE_ID; 9411 /* Extended INQUIRY Data */ 9412 pages->page_list[p++] = SVPD_EXTENDED_INQUIRY_DATA; 9413 /* Mode Page Policy */ 9414 pages->page_list[p++] = SVPD_MODE_PAGE_POLICY; 9415 /* SCSI Ports */ 9416 pages->page_list[p++] = SVPD_SCSI_PORTS; 9417 /* Third-party Copy */ 9418 pages->page_list[p++] = SVPD_SCSI_TPC; 9419 if (lun != NULL && lun->be_lun->lun_type == T_DIRECT) { 9420 /* Block limits */ 9421 pages->page_list[p++] = SVPD_BLOCK_LIMITS; 9422 /* Block Device Characteristics */ 9423 pages->page_list[p++] = SVPD_BDC; 9424 /* Logical Block Provisioning */ 9425 pages->page_list[p++] = SVPD_LBP; 9426 } 9427 pages->length = p; 9428 9429 ctl_set_success(ctsio); 9430 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9431 ctsio->be_move_done = ctl_config_move_done; 9432 ctl_datamove((union ctl_io *)ctsio); 9433 return (CTL_RETVAL_COMPLETE); 9434} 9435 9436/* 9437 * SCSI VPD page 0x80, the Unit Serial Number page. 9438 */ 9439static int 9440ctl_inquiry_evpd_serial(struct ctl_scsiio *ctsio, int alloc_len) 9441{ 9442 struct scsi_vpd_unit_serial_number *sn_ptr; 9443 struct ctl_lun *lun; 9444 int data_len; 9445 9446 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9447 9448 data_len = 4 + CTL_SN_LEN; 9449 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9450 sn_ptr = (struct scsi_vpd_unit_serial_number *)ctsio->kern_data_ptr; 9451 if (data_len < alloc_len) { 9452 ctsio->residual = alloc_len - data_len; 9453 ctsio->kern_data_len = data_len; 9454 ctsio->kern_total_len = data_len; 9455 } else { 9456 ctsio->residual = 0; 9457 ctsio->kern_data_len = alloc_len; 9458 ctsio->kern_total_len = alloc_len; 9459 } 9460 ctsio->kern_data_resid = 0; 9461 ctsio->kern_rel_offset = 0; 9462 ctsio->kern_sg_entries = 0; 9463 9464 /* 9465 * The control device is always connected. The disk device, on the 9466 * other hand, may not be online all the time. Need to change this 9467 * to figure out whether the disk device is actually online or not. 9468 */ 9469 if (lun != NULL) 9470 sn_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9471 lun->be_lun->lun_type; 9472 else 9473 sn_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9474 9475 sn_ptr->page_code = SVPD_UNIT_SERIAL_NUMBER; 9476 sn_ptr->length = CTL_SN_LEN; 9477 /* 9478 * If we don't have a LUN, we just leave the serial number as 9479 * all spaces. 9480 */ 9481 if (lun != NULL) { 9482 strncpy((char *)sn_ptr->serial_num, 9483 (char *)lun->be_lun->serial_num, CTL_SN_LEN); 9484 } else 9485 memset(sn_ptr->serial_num, 0x20, CTL_SN_LEN); 9486 9487 ctl_set_success(ctsio); 9488 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9489 ctsio->be_move_done = ctl_config_move_done; 9490 ctl_datamove((union ctl_io *)ctsio); 9491 return (CTL_RETVAL_COMPLETE); 9492} 9493 9494 9495/* 9496 * SCSI VPD page 0x86, the Extended INQUIRY Data page. 9497 */ 9498static int 9499ctl_inquiry_evpd_eid(struct ctl_scsiio *ctsio, int alloc_len) 9500{ 9501 struct scsi_vpd_extended_inquiry_data *eid_ptr; 9502 struct ctl_lun *lun; 9503 int data_len; 9504 9505 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9506 9507 data_len = sizeof(struct scsi_vpd_extended_inquiry_data); 9508 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9509 eid_ptr = (struct scsi_vpd_extended_inquiry_data *)ctsio->kern_data_ptr; 9510 ctsio->kern_sg_entries = 0; 9511 9512 if (data_len < alloc_len) { 9513 ctsio->residual = alloc_len - data_len; 9514 ctsio->kern_data_len = data_len; 9515 ctsio->kern_total_len = data_len; 9516 } else { 9517 ctsio->residual = 0; 9518 ctsio->kern_data_len = alloc_len; 9519 ctsio->kern_total_len = alloc_len; 9520 } 9521 ctsio->kern_data_resid = 0; 9522 ctsio->kern_rel_offset = 0; 9523 ctsio->kern_sg_entries = 0; 9524 9525 /* 9526 * The control device is always connected. The disk device, on the 9527 * other hand, may not be online all the time. 9528 */ 9529 if (lun != NULL) 9530 eid_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9531 lun->be_lun->lun_type; 9532 else 9533 eid_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9534 eid_ptr->page_code = SVPD_EXTENDED_INQUIRY_DATA; 9535 scsi_ulto2b(data_len - 4, eid_ptr->page_length); 9536 /* 9537 * We support head of queue, ordered and simple tags. 9538 */ 9539 eid_ptr->flags2 = SVPD_EID_HEADSUP | SVPD_EID_ORDSUP | SVPD_EID_SIMPSUP; 9540 /* 9541 * Volatile cache supported. 9542 */ 9543 eid_ptr->flags3 = SVPD_EID_V_SUP; 9544 9545 /* 9546 * This means that we clear the REPORTED LUNS DATA HAS CHANGED unit 9547 * attention for a particular IT nexus on all LUNs once we report 9548 * it to that nexus once. This bit is required as of SPC-4. 9549 */ 9550 eid_ptr->flags4 = SVPD_EID_LUICLT; 9551 9552 /* 9553 * XXX KDM in order to correctly answer this, we would need 9554 * information from the SIM to determine how much sense data it 9555 * can send. So this would really be a path inquiry field, most 9556 * likely. This can be set to a maximum of 252 according to SPC-4, 9557 * but the hardware may or may not be able to support that much. 9558 * 0 just means that the maximum sense data length is not reported. 9559 */ 9560 eid_ptr->max_sense_length = 0; 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 9569static int 9570ctl_inquiry_evpd_mpp(struct ctl_scsiio *ctsio, int alloc_len) 9571{ 9572 struct scsi_vpd_mode_page_policy *mpp_ptr; 9573 struct ctl_lun *lun; 9574 int data_len; 9575 9576 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9577 9578 data_len = sizeof(struct scsi_vpd_mode_page_policy) + 9579 sizeof(struct scsi_vpd_mode_page_policy_descr); 9580 9581 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9582 mpp_ptr = (struct scsi_vpd_mode_page_policy *)ctsio->kern_data_ptr; 9583 ctsio->kern_sg_entries = 0; 9584 9585 if (data_len < alloc_len) { 9586 ctsio->residual = alloc_len - data_len; 9587 ctsio->kern_data_len = data_len; 9588 ctsio->kern_total_len = data_len; 9589 } else { 9590 ctsio->residual = 0; 9591 ctsio->kern_data_len = alloc_len; 9592 ctsio->kern_total_len = alloc_len; 9593 } 9594 ctsio->kern_data_resid = 0; 9595 ctsio->kern_rel_offset = 0; 9596 ctsio->kern_sg_entries = 0; 9597 9598 /* 9599 * The control device is always connected. The disk device, on the 9600 * other hand, may not be online all the time. 9601 */ 9602 if (lun != NULL) 9603 mpp_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9604 lun->be_lun->lun_type; 9605 else 9606 mpp_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9607 mpp_ptr->page_code = SVPD_MODE_PAGE_POLICY; 9608 scsi_ulto2b(data_len - 4, mpp_ptr->page_length); 9609 mpp_ptr->descr[0].page_code = 0x3f; 9610 mpp_ptr->descr[0].subpage_code = 0xff; 9611 mpp_ptr->descr[0].policy = SVPD_MPP_SHARED; 9612 9613 ctl_set_success(ctsio); 9614 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9615 ctsio->be_move_done = ctl_config_move_done; 9616 ctl_datamove((union ctl_io *)ctsio); 9617 return (CTL_RETVAL_COMPLETE); 9618} 9619 9620/* 9621 * SCSI VPD page 0x83, the Device Identification page. 9622 */ 9623static int 9624ctl_inquiry_evpd_devid(struct ctl_scsiio *ctsio, int alloc_len) 9625{ 9626 struct scsi_vpd_device_id *devid_ptr; 9627 struct scsi_vpd_id_descriptor *desc; 9628 struct ctl_softc *softc; 9629 struct ctl_lun *lun; 9630 struct ctl_port *port; 9631 int data_len; 9632 uint8_t proto; 9633 9634 softc = control_softc; 9635 9636 port = ctl_io_port(&ctsio->io_hdr); 9637 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9638 9639 data_len = sizeof(struct scsi_vpd_device_id) + 9640 sizeof(struct scsi_vpd_id_descriptor) + 9641 sizeof(struct scsi_vpd_id_rel_trgt_port_id) + 9642 sizeof(struct scsi_vpd_id_descriptor) + 9643 sizeof(struct scsi_vpd_id_trgt_port_grp_id); 9644 if (lun && lun->lun_devid) 9645 data_len += lun->lun_devid->len; 9646 if (port && port->port_devid) 9647 data_len += port->port_devid->len; 9648 if (port && port->target_devid) 9649 data_len += port->target_devid->len; 9650 9651 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9652 devid_ptr = (struct scsi_vpd_device_id *)ctsio->kern_data_ptr; 9653 ctsio->kern_sg_entries = 0; 9654 9655 if (data_len < alloc_len) { 9656 ctsio->residual = alloc_len - data_len; 9657 ctsio->kern_data_len = data_len; 9658 ctsio->kern_total_len = data_len; 9659 } else { 9660 ctsio->residual = 0; 9661 ctsio->kern_data_len = alloc_len; 9662 ctsio->kern_total_len = alloc_len; 9663 } 9664 ctsio->kern_data_resid = 0; 9665 ctsio->kern_rel_offset = 0; 9666 ctsio->kern_sg_entries = 0; 9667 9668 /* 9669 * The control device is always connected. The disk device, on the 9670 * other hand, may not be online all the time. 9671 */ 9672 if (lun != NULL) 9673 devid_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9674 lun->be_lun->lun_type; 9675 else 9676 devid_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9677 devid_ptr->page_code = SVPD_DEVICE_ID; 9678 scsi_ulto2b(data_len - 4, devid_ptr->length); 9679 9680 if (port && port->port_type == CTL_PORT_FC) 9681 proto = SCSI_PROTO_FC << 4; 9682 else if (port && port->port_type == CTL_PORT_ISCSI) 9683 proto = SCSI_PROTO_ISCSI << 4; 9684 else 9685 proto = SCSI_PROTO_SPI << 4; 9686 desc = (struct scsi_vpd_id_descriptor *)devid_ptr->desc_list; 9687 9688 /* 9689 * We're using a LUN association here. i.e., this device ID is a 9690 * per-LUN identifier. 9691 */ 9692 if (lun && lun->lun_devid) { 9693 memcpy(desc, lun->lun_devid->data, lun->lun_devid->len); 9694 desc = (struct scsi_vpd_id_descriptor *)((uint8_t *)desc + 9695 lun->lun_devid->len); 9696 } 9697 9698 /* 9699 * This is for the WWPN which is a port association. 9700 */ 9701 if (port && port->port_devid) { 9702 memcpy(desc, port->port_devid->data, port->port_devid->len); 9703 desc = (struct scsi_vpd_id_descriptor *)((uint8_t *)desc + 9704 port->port_devid->len); 9705 } 9706 9707 /* 9708 * This is for the Relative Target Port(type 4h) identifier 9709 */ 9710 desc->proto_codeset = proto | SVPD_ID_CODESET_BINARY; 9711 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_PORT | 9712 SVPD_ID_TYPE_RELTARG; 9713 desc->length = 4; 9714 scsi_ulto2b(ctsio->io_hdr.nexus.targ_port, &desc->identifier[2]); 9715 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 9716 sizeof(struct scsi_vpd_id_rel_trgt_port_id)); 9717 9718 /* 9719 * This is for the Target Port Group(type 5h) identifier 9720 */ 9721 desc->proto_codeset = proto | SVPD_ID_CODESET_BINARY; 9722 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_PORT | 9723 SVPD_ID_TYPE_TPORTGRP; 9724 desc->length = 4; 9725 scsi_ulto2b(ctsio->io_hdr.nexus.targ_port / softc->port_cnt + 1, 9726 &desc->identifier[2]); 9727 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 9728 sizeof(struct scsi_vpd_id_trgt_port_grp_id)); 9729 9730 /* 9731 * This is for the Target identifier 9732 */ 9733 if (port && port->target_devid) { 9734 memcpy(desc, port->target_devid->data, port->target_devid->len); 9735 } 9736 9737 ctl_set_success(ctsio); 9738 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9739 ctsio->be_move_done = ctl_config_move_done; 9740 ctl_datamove((union ctl_io *)ctsio); 9741 return (CTL_RETVAL_COMPLETE); 9742} 9743 9744static int 9745ctl_inquiry_evpd_scsi_ports(struct ctl_scsiio *ctsio, int alloc_len) 9746{ 9747 struct ctl_softc *softc = control_softc; 9748 struct scsi_vpd_scsi_ports *sp; 9749 struct scsi_vpd_port_designation *pd; 9750 struct scsi_vpd_port_designation_cont *pdc; 9751 struct ctl_lun *lun; 9752 struct ctl_port *port; 9753 int data_len, num_target_ports, iid_len, id_len; 9754 9755 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9756 9757 num_target_ports = 0; 9758 iid_len = 0; 9759 id_len = 0; 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 num_target_ports++; 9768 if (port->init_devid) 9769 iid_len += port->init_devid->len; 9770 if (port->port_devid) 9771 id_len += port->port_devid->len; 9772 } 9773 mtx_unlock(&softc->ctl_lock); 9774 9775 data_len = sizeof(struct scsi_vpd_scsi_ports) + 9776 num_target_ports * (sizeof(struct scsi_vpd_port_designation) + 9777 sizeof(struct scsi_vpd_port_designation_cont)) + iid_len + id_len; 9778 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9779 sp = (struct scsi_vpd_scsi_ports *)ctsio->kern_data_ptr; 9780 ctsio->kern_sg_entries = 0; 9781 9782 if (data_len < alloc_len) { 9783 ctsio->residual = alloc_len - data_len; 9784 ctsio->kern_data_len = data_len; 9785 ctsio->kern_total_len = data_len; 9786 } else { 9787 ctsio->residual = 0; 9788 ctsio->kern_data_len = alloc_len; 9789 ctsio->kern_total_len = alloc_len; 9790 } 9791 ctsio->kern_data_resid = 0; 9792 ctsio->kern_rel_offset = 0; 9793 ctsio->kern_sg_entries = 0; 9794 9795 /* 9796 * The control device is always connected. The disk device, on the 9797 * other hand, may not be online all the time. Need to change this 9798 * to figure out whether the disk device is actually online or not. 9799 */ 9800 if (lun != NULL) 9801 sp->device = (SID_QUAL_LU_CONNECTED << 5) | 9802 lun->be_lun->lun_type; 9803 else 9804 sp->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9805 9806 sp->page_code = SVPD_SCSI_PORTS; 9807 scsi_ulto2b(data_len - sizeof(struct scsi_vpd_scsi_ports), 9808 sp->page_length); 9809 pd = &sp->design[0]; 9810 9811 mtx_lock(&softc->ctl_lock); 9812 STAILQ_FOREACH(port, &softc->port_list, links) { 9813 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 9814 continue; 9815 if (lun != NULL && 9816 ctl_lun_map_to_port(port, lun->lun) >= CTL_MAX_LUNS) 9817 continue; 9818 scsi_ulto2b(port->targ_port, pd->relative_port_id); 9819 if (port->init_devid) { 9820 iid_len = port->init_devid->len; 9821 memcpy(pd->initiator_transportid, 9822 port->init_devid->data, port->init_devid->len); 9823 } else 9824 iid_len = 0; 9825 scsi_ulto2b(iid_len, pd->initiator_transportid_length); 9826 pdc = (struct scsi_vpd_port_designation_cont *) 9827 (&pd->initiator_transportid[iid_len]); 9828 if (port->port_devid) { 9829 id_len = port->port_devid->len; 9830 memcpy(pdc->target_port_descriptors, 9831 port->port_devid->data, port->port_devid->len); 9832 } else 9833 id_len = 0; 9834 scsi_ulto2b(id_len, pdc->target_port_descriptors_length); 9835 pd = (struct scsi_vpd_port_designation *) 9836 ((uint8_t *)pdc->target_port_descriptors + id_len); 9837 } 9838 mtx_unlock(&softc->ctl_lock); 9839 9840 ctl_set_success(ctsio); 9841 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9842 ctsio->be_move_done = ctl_config_move_done; 9843 ctl_datamove((union ctl_io *)ctsio); 9844 return (CTL_RETVAL_COMPLETE); 9845} 9846 9847static int 9848ctl_inquiry_evpd_block_limits(struct ctl_scsiio *ctsio, int alloc_len) 9849{ 9850 struct scsi_vpd_block_limits *bl_ptr; 9851 struct ctl_lun *lun; 9852 9853 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9854 9855 ctsio->kern_data_ptr = malloc(sizeof(*bl_ptr), M_CTL, M_WAITOK | M_ZERO); 9856 bl_ptr = (struct scsi_vpd_block_limits *)ctsio->kern_data_ptr; 9857 ctsio->kern_sg_entries = 0; 9858 9859 if (sizeof(*bl_ptr) < alloc_len) { 9860 ctsio->residual = alloc_len - sizeof(*bl_ptr); 9861 ctsio->kern_data_len = sizeof(*bl_ptr); 9862 ctsio->kern_total_len = sizeof(*bl_ptr); 9863 } else { 9864 ctsio->residual = 0; 9865 ctsio->kern_data_len = alloc_len; 9866 ctsio->kern_total_len = alloc_len; 9867 } 9868 ctsio->kern_data_resid = 0; 9869 ctsio->kern_rel_offset = 0; 9870 ctsio->kern_sg_entries = 0; 9871 9872 /* 9873 * The control device is always connected. The disk device, on the 9874 * other hand, may not be online all the time. Need to change this 9875 * to figure out whether the disk device is actually online or not. 9876 */ 9877 if (lun != NULL) 9878 bl_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9879 lun->be_lun->lun_type; 9880 else 9881 bl_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9882 9883 bl_ptr->page_code = SVPD_BLOCK_LIMITS; 9884 scsi_ulto2b(sizeof(*bl_ptr) - 4, bl_ptr->page_length); 9885 bl_ptr->max_cmp_write_len = 0xff; 9886 scsi_ulto4b(0xffffffff, bl_ptr->max_txfer_len); 9887 if (lun != NULL) { 9888 scsi_ulto4b(lun->be_lun->opttxferlen, bl_ptr->opt_txfer_len); 9889 if (lun->be_lun->flags & CTL_LUN_FLAG_UNMAP) { 9890 scsi_ulto4b(0xffffffff, bl_ptr->max_unmap_lba_cnt); 9891 scsi_ulto4b(0xffffffff, bl_ptr->max_unmap_blk_cnt); 9892 if (lun->be_lun->ublockexp != 0) { 9893 scsi_ulto4b((1 << lun->be_lun->ublockexp), 9894 bl_ptr->opt_unmap_grain); 9895 scsi_ulto4b(0x80000000 | lun->be_lun->ublockoff, 9896 bl_ptr->unmap_grain_align); 9897 } 9898 } 9899 scsi_ulto4b(lun->be_lun->atomicblock, 9900 bl_ptr->max_atomic_transfer_length); 9901 scsi_ulto4b(0, bl_ptr->atomic_alignment); 9902 scsi_ulto4b(0, bl_ptr->atomic_transfer_length_granularity); 9903 scsi_ulto4b(0, bl_ptr->max_atomic_transfer_length_with_atomic_boundary); 9904 scsi_ulto4b(0, bl_ptr->max_atomic_boundary_size); 9905 } 9906 scsi_u64to8b(UINT64_MAX, bl_ptr->max_write_same_length); 9907 9908 ctl_set_success(ctsio); 9909 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9910 ctsio->be_move_done = ctl_config_move_done; 9911 ctl_datamove((union ctl_io *)ctsio); 9912 return (CTL_RETVAL_COMPLETE); 9913} 9914 9915static int 9916ctl_inquiry_evpd_bdc(struct ctl_scsiio *ctsio, int alloc_len) 9917{ 9918 struct scsi_vpd_block_device_characteristics *bdc_ptr; 9919 struct ctl_lun *lun; 9920 const char *value; 9921 u_int i; 9922 9923 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9924 9925 ctsio->kern_data_ptr = malloc(sizeof(*bdc_ptr), M_CTL, M_WAITOK | M_ZERO); 9926 bdc_ptr = (struct scsi_vpd_block_device_characteristics *)ctsio->kern_data_ptr; 9927 ctsio->kern_sg_entries = 0; 9928 9929 if (sizeof(*bdc_ptr) < alloc_len) { 9930 ctsio->residual = alloc_len - sizeof(*bdc_ptr); 9931 ctsio->kern_data_len = sizeof(*bdc_ptr); 9932 ctsio->kern_total_len = sizeof(*bdc_ptr); 9933 } else { 9934 ctsio->residual = 0; 9935 ctsio->kern_data_len = alloc_len; 9936 ctsio->kern_total_len = alloc_len; 9937 } 9938 ctsio->kern_data_resid = 0; 9939 ctsio->kern_rel_offset = 0; 9940 ctsio->kern_sg_entries = 0; 9941 9942 /* 9943 * The control device is always connected. The disk device, on the 9944 * other hand, may not be online all the time. Need to change this 9945 * to figure out whether the disk device is actually online or not. 9946 */ 9947 if (lun != NULL) 9948 bdc_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9949 lun->be_lun->lun_type; 9950 else 9951 bdc_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9952 bdc_ptr->page_code = SVPD_BDC; 9953 scsi_ulto2b(sizeof(*bdc_ptr) - 4, bdc_ptr->page_length); 9954 if (lun != NULL && 9955 (value = ctl_get_opt(&lun->be_lun->options, "rpm")) != NULL) 9956 i = strtol(value, NULL, 0); 9957 else 9958 i = CTL_DEFAULT_ROTATION_RATE; 9959 scsi_ulto2b(i, bdc_ptr->medium_rotation_rate); 9960 if (lun != NULL && 9961 (value = ctl_get_opt(&lun->be_lun->options, "formfactor")) != NULL) 9962 i = strtol(value, NULL, 0); 9963 else 9964 i = 0; 9965 bdc_ptr->wab_wac_ff = (i & 0x0f); 9966 bdc_ptr->flags = SVPD_FUAB | SVPD_VBULS; 9967 9968 ctl_set_success(ctsio); 9969 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9970 ctsio->be_move_done = ctl_config_move_done; 9971 ctl_datamove((union ctl_io *)ctsio); 9972 return (CTL_RETVAL_COMPLETE); 9973} 9974 9975static int 9976ctl_inquiry_evpd_lbp(struct ctl_scsiio *ctsio, int alloc_len) 9977{ 9978 struct scsi_vpd_logical_block_prov *lbp_ptr; 9979 struct ctl_lun *lun; 9980 9981 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9982 9983 ctsio->kern_data_ptr = malloc(sizeof(*lbp_ptr), M_CTL, M_WAITOK | M_ZERO); 9984 lbp_ptr = (struct scsi_vpd_logical_block_prov *)ctsio->kern_data_ptr; 9985 ctsio->kern_sg_entries = 0; 9986 9987 if (sizeof(*lbp_ptr) < alloc_len) { 9988 ctsio->residual = alloc_len - sizeof(*lbp_ptr); 9989 ctsio->kern_data_len = sizeof(*lbp_ptr); 9990 ctsio->kern_total_len = sizeof(*lbp_ptr); 9991 } else { 9992 ctsio->residual = 0; 9993 ctsio->kern_data_len = alloc_len; 9994 ctsio->kern_total_len = alloc_len; 9995 } 9996 ctsio->kern_data_resid = 0; 9997 ctsio->kern_rel_offset = 0; 9998 ctsio->kern_sg_entries = 0; 9999 10000 /* 10001 * The control device is always connected. The disk device, on the 10002 * other hand, may not be online all the time. Need to change this 10003 * to figure out whether the disk device is actually online or not. 10004 */ 10005 if (lun != NULL) 10006 lbp_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10007 lun->be_lun->lun_type; 10008 else 10009 lbp_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10010 10011 lbp_ptr->page_code = SVPD_LBP; 10012 scsi_ulto2b(sizeof(*lbp_ptr) - 4, lbp_ptr->page_length); 10013 lbp_ptr->threshold_exponent = CTL_LBP_EXPONENT; 10014 if (lun != NULL && lun->be_lun->flags & CTL_LUN_FLAG_UNMAP) { 10015 lbp_ptr->flags = SVPD_LBP_UNMAP | SVPD_LBP_WS16 | 10016 SVPD_LBP_WS10 | SVPD_LBP_RZ | SVPD_LBP_ANC_SUP; 10017 lbp_ptr->prov_type = SVPD_LBP_THIN; 10018 } 10019 10020 ctl_set_success(ctsio); 10021 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10022 ctsio->be_move_done = ctl_config_move_done; 10023 ctl_datamove((union ctl_io *)ctsio); 10024 return (CTL_RETVAL_COMPLETE); 10025} 10026 10027/* 10028 * INQUIRY with the EVPD bit set. 10029 */ 10030static int 10031ctl_inquiry_evpd(struct ctl_scsiio *ctsio) 10032{ 10033 struct ctl_lun *lun; 10034 struct scsi_inquiry *cdb; 10035 int alloc_len, retval; 10036 10037 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10038 cdb = (struct scsi_inquiry *)ctsio->cdb; 10039 alloc_len = scsi_2btoul(cdb->length); 10040 10041 switch (cdb->page_code) { 10042 case SVPD_SUPPORTED_PAGES: 10043 retval = ctl_inquiry_evpd_supported(ctsio, alloc_len); 10044 break; 10045 case SVPD_UNIT_SERIAL_NUMBER: 10046 retval = ctl_inquiry_evpd_serial(ctsio, alloc_len); 10047 break; 10048 case SVPD_DEVICE_ID: 10049 retval = ctl_inquiry_evpd_devid(ctsio, alloc_len); 10050 break; 10051 case SVPD_EXTENDED_INQUIRY_DATA: 10052 retval = ctl_inquiry_evpd_eid(ctsio, alloc_len); 10053 break; 10054 case SVPD_MODE_PAGE_POLICY: 10055 retval = ctl_inquiry_evpd_mpp(ctsio, alloc_len); 10056 break; 10057 case SVPD_SCSI_PORTS: 10058 retval = ctl_inquiry_evpd_scsi_ports(ctsio, alloc_len); 10059 break; 10060 case SVPD_SCSI_TPC: 10061 retval = ctl_inquiry_evpd_tpc(ctsio, alloc_len); 10062 break; 10063 case SVPD_BLOCK_LIMITS: 10064 if (lun == NULL || lun->be_lun->lun_type != T_DIRECT) 10065 goto err; 10066 retval = ctl_inquiry_evpd_block_limits(ctsio, alloc_len); 10067 break; 10068 case SVPD_BDC: 10069 if (lun == NULL || lun->be_lun->lun_type != T_DIRECT) 10070 goto err; 10071 retval = ctl_inquiry_evpd_bdc(ctsio, alloc_len); 10072 break; 10073 case SVPD_LBP: 10074 if (lun == NULL || lun->be_lun->lun_type != T_DIRECT) 10075 goto err; 10076 retval = ctl_inquiry_evpd_lbp(ctsio, alloc_len); 10077 break; 10078 default: 10079err: 10080 ctl_set_invalid_field(ctsio, 10081 /*sks_valid*/ 1, 10082 /*command*/ 1, 10083 /*field*/ 2, 10084 /*bit_valid*/ 0, 10085 /*bit*/ 0); 10086 ctl_done((union ctl_io *)ctsio); 10087 retval = CTL_RETVAL_COMPLETE; 10088 break; 10089 } 10090 10091 return (retval); 10092} 10093 10094/* 10095 * Standard INQUIRY data. 10096 */ 10097static int 10098ctl_inquiry_std(struct ctl_scsiio *ctsio) 10099{ 10100 struct scsi_inquiry_data *inq_ptr; 10101 struct scsi_inquiry *cdb; 10102 struct ctl_softc *softc = control_softc; 10103 struct ctl_port *port; 10104 struct ctl_lun *lun; 10105 char *val; 10106 uint32_t alloc_len, data_len; 10107 ctl_port_type port_type; 10108 10109 port = ctl_io_port(&ctsio->io_hdr); 10110 port_type = port->port_type; 10111 if (port_type == CTL_PORT_IOCTL || port_type == CTL_PORT_INTERNAL) 10112 port_type = CTL_PORT_SCSI; 10113 10114 lun = ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10115 cdb = (struct scsi_inquiry *)ctsio->cdb; 10116 alloc_len = scsi_2btoul(cdb->length); 10117 10118 /* 10119 * We malloc the full inquiry data size here and fill it 10120 * in. If the user only asks for less, we'll give him 10121 * that much. 10122 */ 10123 data_len = offsetof(struct scsi_inquiry_data, vendor_specific1); 10124 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 10125 inq_ptr = (struct scsi_inquiry_data *)ctsio->kern_data_ptr; 10126 ctsio->kern_sg_entries = 0; 10127 ctsio->kern_data_resid = 0; 10128 ctsio->kern_rel_offset = 0; 10129 10130 if (data_len < alloc_len) { 10131 ctsio->residual = alloc_len - data_len; 10132 ctsio->kern_data_len = data_len; 10133 ctsio->kern_total_len = data_len; 10134 } else { 10135 ctsio->residual = 0; 10136 ctsio->kern_data_len = alloc_len; 10137 ctsio->kern_total_len = alloc_len; 10138 } 10139 10140 if (lun != NULL) { 10141 if ((lun->flags & CTL_LUN_PRIMARY_SC) || 10142 softc->ha_link >= CTL_HA_LINK_UNKNOWN) { 10143 inq_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10144 lun->be_lun->lun_type; 10145 } else { 10146 inq_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | 10147 lun->be_lun->lun_type; 10148 } 10149 if (lun->flags & CTL_LUN_REMOVABLE) 10150 inq_ptr->dev_qual2 |= SID_RMB; 10151 } else 10152 inq_ptr->device = (SID_QUAL_BAD_LU << 5) | T_NODEVICE; 10153 10154 /* RMB in byte 2 is 0 */ 10155 inq_ptr->version = SCSI_REV_SPC4; 10156 10157 /* 10158 * According to SAM-3, even if a device only supports a single 10159 * level of LUN addressing, it should still set the HISUP bit: 10160 * 10161 * 4.9.1 Logical unit numbers overview 10162 * 10163 * All logical unit number formats described in this standard are 10164 * hierarchical in structure even when only a single level in that 10165 * hierarchy is used. The HISUP bit shall be set to one in the 10166 * standard INQUIRY data (see SPC-2) when any logical unit number 10167 * format described in this standard is used. Non-hierarchical 10168 * formats are outside the scope of this standard. 10169 * 10170 * Therefore we set the HiSup bit here. 10171 * 10172 * The reponse format is 2, per SPC-3. 10173 */ 10174 inq_ptr->response_format = SID_HiSup | 2; 10175 10176 inq_ptr->additional_length = data_len - 10177 (offsetof(struct scsi_inquiry_data, additional_length) + 1); 10178 CTL_DEBUG_PRINT(("additional_length = %d\n", 10179 inq_ptr->additional_length)); 10180 10181 inq_ptr->spc3_flags = SPC3_SID_3PC | SPC3_SID_TPGS_IMPLICIT; 10182 if (port_type == CTL_PORT_SCSI) 10183 inq_ptr->spc2_flags = SPC2_SID_ADDR16; 10184 inq_ptr->spc2_flags |= SPC2_SID_MultiP; 10185 inq_ptr->flags = SID_CmdQue; 10186 if (port_type == CTL_PORT_SCSI) 10187 inq_ptr->flags |= SID_WBus16 | SID_Sync; 10188 10189 /* 10190 * Per SPC-3, unused bytes in ASCII strings are filled with spaces. 10191 * We have 8 bytes for the vendor name, and 16 bytes for the device 10192 * name and 4 bytes for the revision. 10193 */ 10194 if (lun == NULL || (val = ctl_get_opt(&lun->be_lun->options, 10195 "vendor")) == NULL) { 10196 strncpy(inq_ptr->vendor, CTL_VENDOR, sizeof(inq_ptr->vendor)); 10197 } else { 10198 memset(inq_ptr->vendor, ' ', sizeof(inq_ptr->vendor)); 10199 strncpy(inq_ptr->vendor, val, 10200 min(sizeof(inq_ptr->vendor), strlen(val))); 10201 } 10202 if (lun == NULL) { 10203 strncpy(inq_ptr->product, CTL_DIRECT_PRODUCT, 10204 sizeof(inq_ptr->product)); 10205 } else if ((val = ctl_get_opt(&lun->be_lun->options, "product")) == NULL) { 10206 switch (lun->be_lun->lun_type) { 10207 case T_DIRECT: 10208 strncpy(inq_ptr->product, CTL_DIRECT_PRODUCT, 10209 sizeof(inq_ptr->product)); 10210 break; 10211 case T_PROCESSOR: 10212 strncpy(inq_ptr->product, CTL_PROCESSOR_PRODUCT, 10213 sizeof(inq_ptr->product)); 10214 break; 10215 case T_CDROM: 10216 strncpy(inq_ptr->product, CTL_CDROM_PRODUCT, 10217 sizeof(inq_ptr->product)); 10218 break; 10219 default: 10220 strncpy(inq_ptr->product, CTL_UNKNOWN_PRODUCT, 10221 sizeof(inq_ptr->product)); 10222 break; 10223 } 10224 } else { 10225 memset(inq_ptr->product, ' ', sizeof(inq_ptr->product)); 10226 strncpy(inq_ptr->product, val, 10227 min(sizeof(inq_ptr->product), strlen(val))); 10228 } 10229 10230 /* 10231 * XXX make this a macro somewhere so it automatically gets 10232 * incremented when we make changes. 10233 */ 10234 if (lun == NULL || (val = ctl_get_opt(&lun->be_lun->options, 10235 "revision")) == NULL) { 10236 strncpy(inq_ptr->revision, "0001", sizeof(inq_ptr->revision)); 10237 } else { 10238 memset(inq_ptr->revision, ' ', sizeof(inq_ptr->revision)); 10239 strncpy(inq_ptr->revision, val, 10240 min(sizeof(inq_ptr->revision), strlen(val))); 10241 } 10242 10243 /* 10244 * For parallel SCSI, we support double transition and single 10245 * transition clocking. We also support QAS (Quick Arbitration 10246 * and Selection) and Information Unit transfers on both the 10247 * control and array devices. 10248 */ 10249 if (port_type == CTL_PORT_SCSI) 10250 inq_ptr->spi3data = SID_SPI_CLOCK_DT_ST | SID_SPI_QAS | 10251 SID_SPI_IUS; 10252 10253 /* SAM-5 (no version claimed) */ 10254 scsi_ulto2b(0x00A0, inq_ptr->version1); 10255 /* SPC-4 (no version claimed) */ 10256 scsi_ulto2b(0x0460, inq_ptr->version2); 10257 if (port_type == CTL_PORT_FC) { 10258 /* FCP-2 ANSI INCITS.350:2003 */ 10259 scsi_ulto2b(0x0917, inq_ptr->version3); 10260 } else if (port_type == CTL_PORT_SCSI) { 10261 /* SPI-4 ANSI INCITS.362:200x */ 10262 scsi_ulto2b(0x0B56, inq_ptr->version3); 10263 } else if (port_type == CTL_PORT_ISCSI) { 10264 /* iSCSI (no version claimed) */ 10265 scsi_ulto2b(0x0960, inq_ptr->version3); 10266 } else if (port_type == CTL_PORT_SAS) { 10267 /* SAS (no version claimed) */ 10268 scsi_ulto2b(0x0BE0, inq_ptr->version3); 10269 } 10270 10271 if (lun == NULL) { 10272 /* SBC-4 (no version claimed) */ 10273 scsi_ulto2b(0x0600, inq_ptr->version4); 10274 } else { 10275 switch (lun->be_lun->lun_type) { 10276 case T_DIRECT: 10277 /* SBC-4 (no version claimed) */ 10278 scsi_ulto2b(0x0600, inq_ptr->version4); 10279 break; 10280 case T_PROCESSOR: 10281 break; 10282 case T_CDROM: 10283 /* MMC-6 (no version claimed) */ 10284 scsi_ulto2b(0x04E0, inq_ptr->version4); 10285 break; 10286 default: 10287 break; 10288 } 10289 } 10290 10291 ctl_set_success(ctsio); 10292 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10293 ctsio->be_move_done = ctl_config_move_done; 10294 ctl_datamove((union ctl_io *)ctsio); 10295 return (CTL_RETVAL_COMPLETE); 10296} 10297 10298int 10299ctl_inquiry(struct ctl_scsiio *ctsio) 10300{ 10301 struct scsi_inquiry *cdb; 10302 int retval; 10303 10304 CTL_DEBUG_PRINT(("ctl_inquiry\n")); 10305 10306 cdb = (struct scsi_inquiry *)ctsio->cdb; 10307 if (cdb->byte2 & SI_EVPD) 10308 retval = ctl_inquiry_evpd(ctsio); 10309 else if (cdb->page_code == 0) 10310 retval = ctl_inquiry_std(ctsio); 10311 else { 10312 ctl_set_invalid_field(ctsio, 10313 /*sks_valid*/ 1, 10314 /*command*/ 1, 10315 /*field*/ 2, 10316 /*bit_valid*/ 0, 10317 /*bit*/ 0); 10318 ctl_done((union ctl_io *)ctsio); 10319 return (CTL_RETVAL_COMPLETE); 10320 } 10321 10322 return (retval); 10323} 10324 10325int 10326ctl_get_config(struct ctl_scsiio *ctsio) 10327{ 10328 struct scsi_get_config_header *hdr; 10329 struct scsi_get_config_feature *feature; 10330 struct scsi_get_config *cdb; 10331 struct ctl_lun *lun; 10332 uint32_t alloc_len, data_len; 10333 int rt, starting; 10334 10335 lun = ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10336 cdb = (struct scsi_get_config *)ctsio->cdb; 10337 rt = (cdb->rt & SGC_RT_MASK); 10338 starting = scsi_2btoul(cdb->starting_feature); 10339 alloc_len = scsi_2btoul(cdb->length); 10340 10341 data_len = sizeof(struct scsi_get_config_header) + 10342 sizeof(struct scsi_get_config_feature) + 8 + 10343 sizeof(struct scsi_get_config_feature) + 8 + 10344 sizeof(struct scsi_get_config_feature) + 4 + 10345 sizeof(struct scsi_get_config_feature) + 4 + 10346 sizeof(struct scsi_get_config_feature) + 8 + 10347 sizeof(struct scsi_get_config_feature) + 10348 sizeof(struct scsi_get_config_feature) + 4 + 10349 sizeof(struct scsi_get_config_feature) + 4 + 10350 sizeof(struct scsi_get_config_feature) + 4 + 10351 sizeof(struct scsi_get_config_feature) + 4 + 10352 sizeof(struct scsi_get_config_feature) + 4 + 10353 sizeof(struct scsi_get_config_feature) + 4; 10354 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 10355 ctsio->kern_sg_entries = 0; 10356 ctsio->kern_data_resid = 0; 10357 ctsio->kern_rel_offset = 0; 10358 10359 hdr = (struct scsi_get_config_header *)ctsio->kern_data_ptr; 10360 if (lun->flags & CTL_LUN_NO_MEDIA) 10361 scsi_ulto2b(0x0000, hdr->current_profile); 10362 else 10363 scsi_ulto2b(0x0010, hdr->current_profile); 10364 feature = (struct scsi_get_config_feature *)(hdr + 1); 10365 10366 if (starting > 0x003b) 10367 goto done; 10368 if (starting > 0x003a) 10369 goto f3b; 10370 if (starting > 0x002b) 10371 goto f3a; 10372 if (starting > 0x002a) 10373 goto f2b; 10374 if (starting > 0x001f) 10375 goto f2a; 10376 if (starting > 0x001e) 10377 goto f1f; 10378 if (starting > 0x001d) 10379 goto f1e; 10380 if (starting > 0x0010) 10381 goto f1d; 10382 if (starting > 0x0003) 10383 goto f10; 10384 if (starting > 0x0002) 10385 goto f3; 10386 if (starting > 0x0001) 10387 goto f2; 10388 if (starting > 0x0000) 10389 goto f1; 10390 10391 /* Profile List */ 10392 scsi_ulto2b(0x0000, feature->feature_code); 10393 feature->flags = SGC_F_PERSISTENT | SGC_F_CURRENT; 10394 feature->add_length = 8; 10395 scsi_ulto2b(0x0008, &feature->feature_data[0]); /* CD-ROM */ 10396 feature->feature_data[2] = 0x00; 10397 scsi_ulto2b(0x0010, &feature->feature_data[4]); /* DVD-ROM */ 10398 feature->feature_data[6] = 0x01; 10399 feature = (struct scsi_get_config_feature *) 10400 &feature->feature_data[feature->add_length]; 10401 10402f1: /* Core */ 10403 scsi_ulto2b(0x0001, feature->feature_code); 10404 feature->flags = 0x08 | SGC_F_PERSISTENT | SGC_F_CURRENT; 10405 feature->add_length = 8; 10406 scsi_ulto4b(0x00000000, &feature->feature_data[0]); 10407 feature->feature_data[4] = 0x03; 10408 feature = (struct scsi_get_config_feature *) 10409 &feature->feature_data[feature->add_length]; 10410 10411f2: /* Morphing */ 10412 scsi_ulto2b(0x0002, feature->feature_code); 10413 feature->flags = 0x04 | SGC_F_PERSISTENT | SGC_F_CURRENT; 10414 feature->add_length = 4; 10415 feature->feature_data[0] = 0x02; 10416 feature = (struct scsi_get_config_feature *) 10417 &feature->feature_data[feature->add_length]; 10418 10419f3: /* Removable Medium */ 10420 scsi_ulto2b(0x0003, feature->feature_code); 10421 feature->flags = 0x04 | SGC_F_PERSISTENT | SGC_F_CURRENT; 10422 feature->add_length = 4; 10423 feature->feature_data[0] = 0x39; 10424 feature = (struct scsi_get_config_feature *) 10425 &feature->feature_data[feature->add_length]; 10426 10427 if (rt == SGC_RT_CURRENT && (lun->flags & CTL_LUN_NO_MEDIA)) 10428 goto done; 10429 10430f10: /* Random Read */ 10431 scsi_ulto2b(0x0010, feature->feature_code); 10432 feature->flags = 0x00; 10433 if ((lun->flags & CTL_LUN_NO_MEDIA) == 0) 10434 feature->flags |= SGC_F_CURRENT; 10435 feature->add_length = 8; 10436 scsi_ulto4b(lun->be_lun->blocksize, &feature->feature_data[0]); 10437 scsi_ulto2b(1, &feature->feature_data[4]); 10438 feature->feature_data[6] = 0x00; 10439 feature = (struct scsi_get_config_feature *) 10440 &feature->feature_data[feature->add_length]; 10441 10442f1d: /* Multi-Read */ 10443 scsi_ulto2b(0x001D, 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 = 0; 10448 feature = (struct scsi_get_config_feature *) 10449 &feature->feature_data[feature->add_length]; 10450 10451f1e: /* CD Read */ 10452 scsi_ulto2b(0x001E, feature->feature_code); 10453 feature->flags = 0x00; 10454 if ((lun->flags & CTL_LUN_NO_MEDIA) == 0) 10455 feature->flags |= SGC_F_CURRENT; 10456 feature->add_length = 4; 10457 feature->feature_data[0] = 0x00; 10458 feature = (struct scsi_get_config_feature *) 10459 &feature->feature_data[feature->add_length]; 10460 10461f1f: /* DVD Read */ 10462 scsi_ulto2b(0x001F, feature->feature_code); 10463 feature->flags = 0x08; 10464 if ((lun->flags & CTL_LUN_NO_MEDIA) == 0) 10465 feature->flags |= SGC_F_CURRENT; 10466 feature->add_length = 4; 10467 feature->feature_data[0] = 0x01; 10468 feature->feature_data[2] = 0x03; 10469 feature = (struct scsi_get_config_feature *) 10470 &feature->feature_data[feature->add_length]; 10471 10472f2a: /* DVD+RW */ 10473 scsi_ulto2b(0x002A, feature->feature_code); 10474 feature->flags = 0x04; 10475 if ((lun->flags & CTL_LUN_NO_MEDIA) == 0) 10476 feature->flags |= SGC_F_CURRENT; 10477 feature->add_length = 4; 10478 feature->feature_data[0] = 0x00; 10479 feature->feature_data[1] = 0x00; 10480 feature = (struct scsi_get_config_feature *) 10481 &feature->feature_data[feature->add_length]; 10482 10483f2b: /* DVD+R */ 10484 scsi_ulto2b(0x002B, feature->feature_code); 10485 feature->flags = 0x00; 10486 if ((lun->flags & CTL_LUN_NO_MEDIA) == 0) 10487 feature->flags |= SGC_F_CURRENT; 10488 feature->add_length = 4; 10489 feature->feature_data[0] = 0x00; 10490 feature = (struct scsi_get_config_feature *) 10491 &feature->feature_data[feature->add_length]; 10492 10493f3a: /* DVD+RW Dual Layer */ 10494 scsi_ulto2b(0x003A, feature->feature_code); 10495 feature->flags = 0x00; 10496 if ((lun->flags & CTL_LUN_NO_MEDIA) == 0) 10497 feature->flags |= SGC_F_CURRENT; 10498 feature->add_length = 4; 10499 feature->feature_data[0] = 0x00; 10500 feature->feature_data[1] = 0x00; 10501 feature = (struct scsi_get_config_feature *) 10502 &feature->feature_data[feature->add_length]; 10503 10504f3b: /* DVD+R Dual Layer */ 10505 scsi_ulto2b(0x003B, feature->feature_code); 10506 feature->flags = 0x00; 10507 if ((lun->flags & CTL_LUN_NO_MEDIA) == 0) 10508 feature->flags |= SGC_F_CURRENT; 10509 feature->add_length = 4; 10510 feature->feature_data[0] = 0x00; 10511 feature = (struct scsi_get_config_feature *) 10512 &feature->feature_data[feature->add_length]; 10513 10514done: 10515 data_len = (uint8_t *)feature - (uint8_t *)hdr; 10516 if (rt == SGC_RT_SPECIFIC && data_len > 4) { 10517 feature = (struct scsi_get_config_feature *)(hdr + 1); 10518 if (scsi_2btoul(feature->feature_code) == starting) 10519 feature = (struct scsi_get_config_feature *) 10520 &feature->feature_data[feature->add_length]; 10521 data_len = (uint8_t *)feature - (uint8_t *)hdr; 10522 } 10523 scsi_ulto4b(data_len - 4, hdr->data_length); 10524 if (data_len < alloc_len) { 10525 ctsio->residual = alloc_len - data_len; 10526 ctsio->kern_data_len = data_len; 10527 ctsio->kern_total_len = data_len; 10528 } else { 10529 ctsio->residual = 0; 10530 ctsio->kern_data_len = alloc_len; 10531 ctsio->kern_total_len = alloc_len; 10532 } 10533 10534 ctl_set_success(ctsio); 10535 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10536 ctsio->be_move_done = ctl_config_move_done; 10537 ctl_datamove((union ctl_io *)ctsio); 10538 return (CTL_RETVAL_COMPLETE); 10539} 10540 10541int 10542ctl_get_event_status(struct ctl_scsiio *ctsio) 10543{ 10544 struct scsi_get_event_status_header *hdr; 10545 struct scsi_get_event_status *cdb; 10546 struct ctl_lun *lun; 10547 uint32_t alloc_len, data_len; 10548 int notif_class; 10549 10550 lun = ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10551 cdb = (struct scsi_get_event_status *)ctsio->cdb; 10552 if ((cdb->byte2 & SGESN_POLLED) == 0) { 10553 ctl_set_invalid_field(ctsio, /*sks_valid*/ 1, /*command*/ 1, 10554 /*field*/ 1, /*bit_valid*/ 1, /*bit*/ 0); 10555 ctl_done((union ctl_io *)ctsio); 10556 return (CTL_RETVAL_COMPLETE); 10557 } 10558 notif_class = cdb->notif_class; 10559 alloc_len = scsi_2btoul(cdb->length); 10560 10561 data_len = sizeof(struct scsi_get_event_status_header); 10562 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 10563 ctsio->kern_sg_entries = 0; 10564 ctsio->kern_data_resid = 0; 10565 ctsio->kern_rel_offset = 0; 10566 10567 if (data_len < alloc_len) { 10568 ctsio->residual = alloc_len - data_len; 10569 ctsio->kern_data_len = data_len; 10570 ctsio->kern_total_len = data_len; 10571 } else { 10572 ctsio->residual = 0; 10573 ctsio->kern_data_len = alloc_len; 10574 ctsio->kern_total_len = alloc_len; 10575 } 10576 10577 hdr = (struct scsi_get_event_status_header *)ctsio->kern_data_ptr; 10578 scsi_ulto2b(0, hdr->descr_length); 10579 hdr->nea_class = SGESN_NEA; 10580 hdr->supported_class = 0; 10581 10582 ctl_set_success(ctsio); 10583 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10584 ctsio->be_move_done = ctl_config_move_done; 10585 ctl_datamove((union ctl_io *)ctsio); 10586 return (CTL_RETVAL_COMPLETE); 10587} 10588 10589int 10590ctl_mechanism_status(struct ctl_scsiio *ctsio) 10591{ 10592 struct scsi_mechanism_status_header *hdr; 10593 struct scsi_mechanism_status *cdb; 10594 struct ctl_lun *lun; 10595 uint32_t alloc_len, data_len; 10596 10597 lun = ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10598 cdb = (struct scsi_mechanism_status *)ctsio->cdb; 10599 alloc_len = scsi_2btoul(cdb->length); 10600 10601 data_len = sizeof(struct scsi_mechanism_status_header); 10602 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 10603 ctsio->kern_sg_entries = 0; 10604 ctsio->kern_data_resid = 0; 10605 ctsio->kern_rel_offset = 0; 10606 10607 if (data_len < alloc_len) { 10608 ctsio->residual = alloc_len - data_len; 10609 ctsio->kern_data_len = data_len; 10610 ctsio->kern_total_len = data_len; 10611 } else { 10612 ctsio->residual = 0; 10613 ctsio->kern_data_len = alloc_len; 10614 ctsio->kern_total_len = alloc_len; 10615 } 10616 10617 hdr = (struct scsi_mechanism_status_header *)ctsio->kern_data_ptr; 10618 hdr->state1 = 0x00; 10619 hdr->state2 = 0xe0; 10620 scsi_ulto3b(0, hdr->lba); 10621 hdr->slots_num = 0; 10622 scsi_ulto2b(0, hdr->slots_length); 10623 10624 ctl_set_success(ctsio); 10625 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10626 ctsio->be_move_done = ctl_config_move_done; 10627 ctl_datamove((union ctl_io *)ctsio); 10628 return (CTL_RETVAL_COMPLETE); 10629} 10630 10631static void 10632ctl_ultomsf(uint32_t lba, uint8_t *buf) 10633{ 10634 10635 lba += 150; 10636 buf[0] = 0; 10637 buf[1] = bin2bcd((lba / 75) / 60); 10638 buf[2] = bin2bcd((lba / 75) % 60); 10639 buf[3] = bin2bcd(lba % 75); 10640} 10641 10642int 10643ctl_read_toc(struct ctl_scsiio *ctsio) 10644{ 10645 struct scsi_read_toc_hdr *hdr; 10646 struct scsi_read_toc_type01_descr *descr; 10647 struct scsi_read_toc *cdb; 10648 struct ctl_lun *lun; 10649 uint32_t alloc_len, data_len; 10650 int format, msf; 10651 10652 lun = ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10653 cdb = (struct scsi_read_toc *)ctsio->cdb; 10654 msf = (cdb->byte2 & CD_MSF) != 0; 10655 format = cdb->format; 10656 alloc_len = scsi_2btoul(cdb->data_len); 10657 10658 data_len = sizeof(struct scsi_read_toc_hdr); 10659 if (format == 0) 10660 data_len += 2 * sizeof(struct scsi_read_toc_type01_descr); 10661 else 10662 data_len += sizeof(struct scsi_read_toc_type01_descr); 10663 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 10664 ctsio->kern_sg_entries = 0; 10665 ctsio->kern_data_resid = 0; 10666 ctsio->kern_rel_offset = 0; 10667 10668 if (data_len < alloc_len) { 10669 ctsio->residual = alloc_len - data_len; 10670 ctsio->kern_data_len = data_len; 10671 ctsio->kern_total_len = data_len; 10672 } else { 10673 ctsio->residual = 0; 10674 ctsio->kern_data_len = alloc_len; 10675 ctsio->kern_total_len = alloc_len; 10676 } 10677 10678 hdr = (struct scsi_read_toc_hdr *)ctsio->kern_data_ptr; 10679 if (format == 0) { 10680 scsi_ulto2b(0x12, hdr->data_length); 10681 hdr->first = 1; 10682 hdr->last = 1; 10683 descr = (struct scsi_read_toc_type01_descr *)(hdr + 1); 10684 descr->addr_ctl = 0x14; 10685 descr->track_number = 1; 10686 if (msf) 10687 ctl_ultomsf(0, descr->track_start); 10688 else 10689 scsi_ulto4b(0, descr->track_start); 10690 descr++; 10691 descr->addr_ctl = 0x14; 10692 descr->track_number = 0xaa; 10693 if (msf) 10694 ctl_ultomsf(lun->be_lun->maxlba+1, descr->track_start); 10695 else 10696 scsi_ulto4b(lun->be_lun->maxlba+1, descr->track_start); 10697 } else { 10698 scsi_ulto2b(0x0a, hdr->data_length); 10699 hdr->first = 1; 10700 hdr->last = 1; 10701 descr = (struct scsi_read_toc_type01_descr *)(hdr + 1); 10702 descr->addr_ctl = 0x14; 10703 descr->track_number = 1; 10704 if (msf) 10705 ctl_ultomsf(0, descr->track_start); 10706 else 10707 scsi_ulto4b(0, descr->track_start); 10708 } 10709 10710 ctl_set_success(ctsio); 10711 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10712 ctsio->be_move_done = ctl_config_move_done; 10713 ctl_datamove((union ctl_io *)ctsio); 10714 return (CTL_RETVAL_COMPLETE); 10715} 10716 10717/* 10718 * For known CDB types, parse the LBA and length. 10719 */ 10720static int 10721ctl_get_lba_len(union ctl_io *io, uint64_t *lba, uint64_t *len) 10722{ 10723 if (io->io_hdr.io_type != CTL_IO_SCSI) 10724 return (1); 10725 10726 switch (io->scsiio.cdb[0]) { 10727 case COMPARE_AND_WRITE: { 10728 struct scsi_compare_and_write *cdb; 10729 10730 cdb = (struct scsi_compare_and_write *)io->scsiio.cdb; 10731 10732 *lba = scsi_8btou64(cdb->addr); 10733 *len = cdb->length; 10734 break; 10735 } 10736 case READ_6: 10737 case WRITE_6: { 10738 struct scsi_rw_6 *cdb; 10739 10740 cdb = (struct scsi_rw_6 *)io->scsiio.cdb; 10741 10742 *lba = scsi_3btoul(cdb->addr); 10743 /* only 5 bits are valid in the most significant address byte */ 10744 *lba &= 0x1fffff; 10745 *len = cdb->length; 10746 break; 10747 } 10748 case READ_10: 10749 case WRITE_10: { 10750 struct scsi_rw_10 *cdb; 10751 10752 cdb = (struct scsi_rw_10 *)io->scsiio.cdb; 10753 10754 *lba = scsi_4btoul(cdb->addr); 10755 *len = scsi_2btoul(cdb->length); 10756 break; 10757 } 10758 case WRITE_VERIFY_10: { 10759 struct scsi_write_verify_10 *cdb; 10760 10761 cdb = (struct scsi_write_verify_10 *)io->scsiio.cdb; 10762 10763 *lba = scsi_4btoul(cdb->addr); 10764 *len = scsi_2btoul(cdb->length); 10765 break; 10766 } 10767 case READ_12: 10768 case WRITE_12: { 10769 struct scsi_rw_12 *cdb; 10770 10771 cdb = (struct scsi_rw_12 *)io->scsiio.cdb; 10772 10773 *lba = scsi_4btoul(cdb->addr); 10774 *len = scsi_4btoul(cdb->length); 10775 break; 10776 } 10777 case WRITE_VERIFY_12: { 10778 struct scsi_write_verify_12 *cdb; 10779 10780 cdb = (struct scsi_write_verify_12 *)io->scsiio.cdb; 10781 10782 *lba = scsi_4btoul(cdb->addr); 10783 *len = scsi_4btoul(cdb->length); 10784 break; 10785 } 10786 case READ_16: 10787 case WRITE_16: { 10788 struct scsi_rw_16 *cdb; 10789 10790 cdb = (struct scsi_rw_16 *)io->scsiio.cdb; 10791 10792 *lba = scsi_8btou64(cdb->addr); 10793 *len = scsi_4btoul(cdb->length); 10794 break; 10795 } 10796 case WRITE_ATOMIC_16: { 10797 struct scsi_write_atomic_16 *cdb; 10798 10799 cdb = (struct scsi_write_atomic_16 *)io->scsiio.cdb; 10800 10801 *lba = scsi_8btou64(cdb->addr); 10802 *len = scsi_2btoul(cdb->length); 10803 break; 10804 } 10805 case WRITE_VERIFY_16: { 10806 struct scsi_write_verify_16 *cdb; 10807 10808 cdb = (struct scsi_write_verify_16 *)io->scsiio.cdb; 10809 10810 *lba = scsi_8btou64(cdb->addr); 10811 *len = scsi_4btoul(cdb->length); 10812 break; 10813 } 10814 case WRITE_SAME_10: { 10815 struct scsi_write_same_10 *cdb; 10816 10817 cdb = (struct scsi_write_same_10 *)io->scsiio.cdb; 10818 10819 *lba = scsi_4btoul(cdb->addr); 10820 *len = scsi_2btoul(cdb->length); 10821 break; 10822 } 10823 case WRITE_SAME_16: { 10824 struct scsi_write_same_16 *cdb; 10825 10826 cdb = (struct scsi_write_same_16 *)io->scsiio.cdb; 10827 10828 *lba = scsi_8btou64(cdb->addr); 10829 *len = scsi_4btoul(cdb->length); 10830 break; 10831 } 10832 case VERIFY_10: { 10833 struct scsi_verify_10 *cdb; 10834 10835 cdb = (struct scsi_verify_10 *)io->scsiio.cdb; 10836 10837 *lba = scsi_4btoul(cdb->addr); 10838 *len = scsi_2btoul(cdb->length); 10839 break; 10840 } 10841 case VERIFY_12: { 10842 struct scsi_verify_12 *cdb; 10843 10844 cdb = (struct scsi_verify_12 *)io->scsiio.cdb; 10845 10846 *lba = scsi_4btoul(cdb->addr); 10847 *len = scsi_4btoul(cdb->length); 10848 break; 10849 } 10850 case VERIFY_16: { 10851 struct scsi_verify_16 *cdb; 10852 10853 cdb = (struct scsi_verify_16 *)io->scsiio.cdb; 10854 10855 *lba = scsi_8btou64(cdb->addr); 10856 *len = scsi_4btoul(cdb->length); 10857 break; 10858 } 10859 case UNMAP: { 10860 *lba = 0; 10861 *len = UINT64_MAX; 10862 break; 10863 } 10864 case SERVICE_ACTION_IN: { /* GET LBA STATUS */ 10865 struct scsi_get_lba_status *cdb; 10866 10867 cdb = (struct scsi_get_lba_status *)io->scsiio.cdb; 10868 *lba = scsi_8btou64(cdb->addr); 10869 *len = UINT32_MAX; 10870 break; 10871 } 10872 default: 10873 return (1); 10874 break; /* NOTREACHED */ 10875 } 10876 10877 return (0); 10878} 10879 10880static ctl_action 10881ctl_extent_check_lba(uint64_t lba1, uint64_t len1, uint64_t lba2, uint64_t len2, 10882 bool seq) 10883{ 10884 uint64_t endlba1, endlba2; 10885 10886 endlba1 = lba1 + len1 - (seq ? 0 : 1); 10887 endlba2 = lba2 + len2 - 1; 10888 10889 if ((endlba1 < lba2) || (endlba2 < lba1)) 10890 return (CTL_ACTION_PASS); 10891 else 10892 return (CTL_ACTION_BLOCK); 10893} 10894 10895static int 10896ctl_extent_check_unmap(union ctl_io *io, uint64_t lba2, uint64_t len2) 10897{ 10898 struct ctl_ptr_len_flags *ptrlen; 10899 struct scsi_unmap_desc *buf, *end, *range; 10900 uint64_t lba; 10901 uint32_t len; 10902 10903 /* If not UNMAP -- go other way. */ 10904 if (io->io_hdr.io_type != CTL_IO_SCSI || 10905 io->scsiio.cdb[0] != UNMAP) 10906 return (CTL_ACTION_ERROR); 10907 10908 /* If UNMAP without data -- block and wait for data. */ 10909 ptrlen = (struct ctl_ptr_len_flags *) 10910 &io->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 10911 if ((io->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0 || 10912 ptrlen->ptr == NULL) 10913 return (CTL_ACTION_BLOCK); 10914 10915 /* UNMAP with data -- check for collision. */ 10916 buf = (struct scsi_unmap_desc *)ptrlen->ptr; 10917 end = buf + ptrlen->len / sizeof(*buf); 10918 for (range = buf; range < end; range++) { 10919 lba = scsi_8btou64(range->lba); 10920 len = scsi_4btoul(range->length); 10921 if ((lba < lba2 + len2) && (lba + len > lba2)) 10922 return (CTL_ACTION_BLOCK); 10923 } 10924 return (CTL_ACTION_PASS); 10925} 10926 10927static ctl_action 10928ctl_extent_check(union ctl_io *io1, union ctl_io *io2, bool seq) 10929{ 10930 uint64_t lba1, lba2; 10931 uint64_t len1, len2; 10932 int retval; 10933 10934 if (ctl_get_lba_len(io2, &lba2, &len2) != 0) 10935 return (CTL_ACTION_ERROR); 10936 10937 retval = ctl_extent_check_unmap(io1, lba2, len2); 10938 if (retval != CTL_ACTION_ERROR) 10939 return (retval); 10940 10941 if (ctl_get_lba_len(io1, &lba1, &len1) != 0) 10942 return (CTL_ACTION_ERROR); 10943 10944 if (io1->io_hdr.flags & CTL_FLAG_SERSEQ_DONE) 10945 seq = FALSE; 10946 return (ctl_extent_check_lba(lba1, len1, lba2, len2, seq)); 10947} 10948 10949static ctl_action 10950ctl_extent_check_seq(union ctl_io *io1, union ctl_io *io2) 10951{ 10952 uint64_t lba1, lba2; 10953 uint64_t len1, len2; 10954 10955 if (io1->io_hdr.flags & CTL_FLAG_SERSEQ_DONE) 10956 return (CTL_ACTION_PASS); 10957 if (ctl_get_lba_len(io1, &lba1, &len1) != 0) 10958 return (CTL_ACTION_ERROR); 10959 if (ctl_get_lba_len(io2, &lba2, &len2) != 0) 10960 return (CTL_ACTION_ERROR); 10961 10962 if (lba1 + len1 == lba2) 10963 return (CTL_ACTION_BLOCK); 10964 return (CTL_ACTION_PASS); 10965} 10966 10967static ctl_action 10968ctl_check_for_blockage(struct ctl_lun *lun, union ctl_io *pending_io, 10969 union ctl_io *ooa_io) 10970{ 10971 const struct ctl_cmd_entry *pending_entry, *ooa_entry; 10972 const ctl_serialize_action *serialize_row; 10973 10974 /* 10975 * The initiator attempted multiple untagged commands at the same 10976 * time. Can't do that. 10977 */ 10978 if ((pending_io->scsiio.tag_type == CTL_TAG_UNTAGGED) 10979 && (ooa_io->scsiio.tag_type == CTL_TAG_UNTAGGED) 10980 && ((pending_io->io_hdr.nexus.targ_port == 10981 ooa_io->io_hdr.nexus.targ_port) 10982 && (pending_io->io_hdr.nexus.initid == 10983 ooa_io->io_hdr.nexus.initid)) 10984 && ((ooa_io->io_hdr.flags & (CTL_FLAG_ABORT | 10985 CTL_FLAG_STATUS_SENT)) == 0)) 10986 return (CTL_ACTION_OVERLAP); 10987 10988 /* 10989 * The initiator attempted to send multiple tagged commands with 10990 * the same ID. (It's fine if different initiators have the same 10991 * tag ID.) 10992 * 10993 * Even if all of those conditions are true, we don't kill the I/O 10994 * if the command ahead of us has been aborted. We won't end up 10995 * sending it to the FETD, and it's perfectly legal to resend a 10996 * command with the same tag number as long as the previous 10997 * instance of this tag number has been aborted somehow. 10998 */ 10999 if ((pending_io->scsiio.tag_type != CTL_TAG_UNTAGGED) 11000 && (ooa_io->scsiio.tag_type != CTL_TAG_UNTAGGED) 11001 && (pending_io->scsiio.tag_num == ooa_io->scsiio.tag_num) 11002 && ((pending_io->io_hdr.nexus.targ_port == 11003 ooa_io->io_hdr.nexus.targ_port) 11004 && (pending_io->io_hdr.nexus.initid == 11005 ooa_io->io_hdr.nexus.initid)) 11006 && ((ooa_io->io_hdr.flags & (CTL_FLAG_ABORT | 11007 CTL_FLAG_STATUS_SENT)) == 0)) 11008 return (CTL_ACTION_OVERLAP_TAG); 11009 11010 /* 11011 * If we get a head of queue tag, SAM-3 says that we should 11012 * immediately execute it. 11013 * 11014 * What happens if this command would normally block for some other 11015 * reason? e.g. a request sense with a head of queue tag 11016 * immediately after a write. Normally that would block, but this 11017 * will result in its getting executed immediately... 11018 * 11019 * We currently return "pass" instead of "skip", so we'll end up 11020 * going through the rest of the queue to check for overlapped tags. 11021 * 11022 * XXX KDM check for other types of blockage first?? 11023 */ 11024 if (pending_io->scsiio.tag_type == CTL_TAG_HEAD_OF_QUEUE) 11025 return (CTL_ACTION_PASS); 11026 11027 /* 11028 * Ordered tags have to block until all items ahead of them 11029 * have completed. If we get called with an ordered tag, we always 11030 * block, if something else is ahead of us in the queue. 11031 */ 11032 if (pending_io->scsiio.tag_type == CTL_TAG_ORDERED) 11033 return (CTL_ACTION_BLOCK); 11034 11035 /* 11036 * Simple tags get blocked until all head of queue and ordered tags 11037 * ahead of them have completed. I'm lumping untagged commands in 11038 * with simple tags here. XXX KDM is that the right thing to do? 11039 */ 11040 if (((pending_io->scsiio.tag_type == CTL_TAG_UNTAGGED) 11041 || (pending_io->scsiio.tag_type == CTL_TAG_SIMPLE)) 11042 && ((ooa_io->scsiio.tag_type == CTL_TAG_HEAD_OF_QUEUE) 11043 || (ooa_io->scsiio.tag_type == CTL_TAG_ORDERED))) 11044 return (CTL_ACTION_BLOCK); 11045 11046 pending_entry = ctl_get_cmd_entry(&pending_io->scsiio, NULL); 11047 KASSERT(pending_entry->seridx < CTL_SERIDX_COUNT, 11048 ("%s: Invalid seridx %d for pending CDB %02x %02x @ %p", 11049 __func__, pending_entry->seridx, pending_io->scsiio.cdb[0], 11050 pending_io->scsiio.cdb[1], pending_io)); 11051 ooa_entry = ctl_get_cmd_entry(&ooa_io->scsiio, NULL); 11052 KASSERT(ooa_entry->seridx < CTL_SERIDX_COUNT, 11053 ("%s: Invalid seridx %d for ooa CDB %02x %02x @ %p", 11054 __func__, ooa_entry->seridx, ooa_io->scsiio.cdb[0], 11055 ooa_io->scsiio.cdb[1], ooa_io)); 11056 11057 serialize_row = ctl_serialize_table[ooa_entry->seridx]; 11058 11059 switch (serialize_row[pending_entry->seridx]) { 11060 case CTL_SER_BLOCK: 11061 return (CTL_ACTION_BLOCK); 11062 case CTL_SER_EXTENT: 11063 return (ctl_extent_check(ooa_io, pending_io, 11064 (lun->be_lun && lun->be_lun->serseq == CTL_LUN_SERSEQ_ON))); 11065 case CTL_SER_EXTENTOPT: 11066 if ((lun->mode_pages.control_page[CTL_PAGE_CURRENT].queue_flags 11067 & SCP_QUEUE_ALG_MASK) != SCP_QUEUE_ALG_UNRESTRICTED) 11068 return (ctl_extent_check(ooa_io, pending_io, 11069 (lun->be_lun && 11070 lun->be_lun->serseq == CTL_LUN_SERSEQ_ON))); 11071 return (CTL_ACTION_PASS); 11072 case CTL_SER_EXTENTSEQ: 11073 if (lun->be_lun && lun->be_lun->serseq != CTL_LUN_SERSEQ_OFF) 11074 return (ctl_extent_check_seq(ooa_io, pending_io)); 11075 return (CTL_ACTION_PASS); 11076 case CTL_SER_PASS: 11077 return (CTL_ACTION_PASS); 11078 case CTL_SER_BLOCKOPT: 11079 if ((lun->mode_pages.control_page[CTL_PAGE_CURRENT].queue_flags 11080 & SCP_QUEUE_ALG_MASK) != SCP_QUEUE_ALG_UNRESTRICTED) 11081 return (CTL_ACTION_BLOCK); 11082 return (CTL_ACTION_PASS); 11083 case CTL_SER_SKIP: 11084 return (CTL_ACTION_SKIP); 11085 default: 11086 panic("%s: Invalid serialization value %d for %d => %d", 11087 __func__, serialize_row[pending_entry->seridx], 11088 pending_entry->seridx, ooa_entry->seridx); 11089 } 11090 11091 return (CTL_ACTION_ERROR); 11092} 11093 11094/* 11095 * Check for blockage or overlaps against the OOA (Order Of Arrival) queue. 11096 * Assumptions: 11097 * - pending_io is generally either incoming, or on the blocked queue 11098 * - starting I/O is the I/O we want to start the check with. 11099 */ 11100static ctl_action 11101ctl_check_ooa(struct ctl_lun *lun, union ctl_io *pending_io, 11102 union ctl_io *starting_io) 11103{ 11104 union ctl_io *ooa_io; 11105 ctl_action action; 11106 11107 mtx_assert(&lun->lun_lock, MA_OWNED); 11108 11109 /* 11110 * Run back along the OOA queue, starting with the current 11111 * blocked I/O and going through every I/O before it on the 11112 * queue. If starting_io is NULL, we'll just end up returning 11113 * CTL_ACTION_PASS. 11114 */ 11115 for (ooa_io = starting_io; ooa_io != NULL; 11116 ooa_io = (union ctl_io *)TAILQ_PREV(&ooa_io->io_hdr, ctl_ooaq, 11117 ooa_links)){ 11118 11119 /* 11120 * This routine just checks to see whether 11121 * cur_blocked is blocked by ooa_io, which is ahead 11122 * of it in the queue. It doesn't queue/dequeue 11123 * cur_blocked. 11124 */ 11125 action = ctl_check_for_blockage(lun, pending_io, ooa_io); 11126 switch (action) { 11127 case CTL_ACTION_BLOCK: 11128 case CTL_ACTION_OVERLAP: 11129 case CTL_ACTION_OVERLAP_TAG: 11130 case CTL_ACTION_SKIP: 11131 case CTL_ACTION_ERROR: 11132 return (action); 11133 break; /* NOTREACHED */ 11134 case CTL_ACTION_PASS: 11135 break; 11136 default: 11137 panic("%s: Invalid action %d\n", __func__, action); 11138 } 11139 } 11140 11141 return (CTL_ACTION_PASS); 11142} 11143 11144/* 11145 * Assumptions: 11146 * - An I/O has just completed, and has been removed from the per-LUN OOA 11147 * queue, so some items on the blocked queue may now be unblocked. 11148 */ 11149static int 11150ctl_check_blocked(struct ctl_lun *lun) 11151{ 11152 struct ctl_softc *softc = lun->ctl_softc; 11153 union ctl_io *cur_blocked, *next_blocked; 11154 11155 mtx_assert(&lun->lun_lock, MA_OWNED); 11156 11157 /* 11158 * Run forward from the head of the blocked queue, checking each 11159 * entry against the I/Os prior to it on the OOA queue to see if 11160 * there is still any blockage. 11161 * 11162 * We cannot use the TAILQ_FOREACH() macro, because it can't deal 11163 * with our removing a variable on it while it is traversing the 11164 * list. 11165 */ 11166 for (cur_blocked = (union ctl_io *)TAILQ_FIRST(&lun->blocked_queue); 11167 cur_blocked != NULL; cur_blocked = next_blocked) { 11168 union ctl_io *prev_ooa; 11169 ctl_action action; 11170 11171 next_blocked = (union ctl_io *)TAILQ_NEXT(&cur_blocked->io_hdr, 11172 blocked_links); 11173 11174 prev_ooa = (union ctl_io *)TAILQ_PREV(&cur_blocked->io_hdr, 11175 ctl_ooaq, ooa_links); 11176 11177 /* 11178 * If cur_blocked happens to be the first item in the OOA 11179 * queue now, prev_ooa will be NULL, and the action 11180 * returned will just be CTL_ACTION_PASS. 11181 */ 11182 action = ctl_check_ooa(lun, cur_blocked, prev_ooa); 11183 11184 switch (action) { 11185 case CTL_ACTION_BLOCK: 11186 /* Nothing to do here, still blocked */ 11187 break; 11188 case CTL_ACTION_OVERLAP: 11189 case CTL_ACTION_OVERLAP_TAG: 11190 /* 11191 * This shouldn't happen! In theory we've already 11192 * checked this command for overlap... 11193 */ 11194 break; 11195 case CTL_ACTION_PASS: 11196 case CTL_ACTION_SKIP: { 11197 const struct ctl_cmd_entry *entry; 11198 11199 /* 11200 * The skip case shouldn't happen, this transaction 11201 * should have never made it onto the blocked queue. 11202 */ 11203 /* 11204 * This I/O is no longer blocked, we can remove it 11205 * from the blocked queue. Since this is a TAILQ 11206 * (doubly linked list), we can do O(1) removals 11207 * from any place on the list. 11208 */ 11209 TAILQ_REMOVE(&lun->blocked_queue, &cur_blocked->io_hdr, 11210 blocked_links); 11211 cur_blocked->io_hdr.flags &= ~CTL_FLAG_BLOCKED; 11212 11213 if ((softc->ha_mode != CTL_HA_MODE_XFER) && 11214 (cur_blocked->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)){ 11215 /* 11216 * Need to send IO back to original side to 11217 * run 11218 */ 11219 union ctl_ha_msg msg_info; 11220 11221 cur_blocked->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 11222 msg_info.hdr.original_sc = 11223 cur_blocked->io_hdr.original_sc; 11224 msg_info.hdr.serializing_sc = cur_blocked; 11225 msg_info.hdr.msg_type = CTL_MSG_R2R; 11226 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 11227 sizeof(msg_info.hdr), M_NOWAIT); 11228 break; 11229 } 11230 entry = ctl_get_cmd_entry(&cur_blocked->scsiio, NULL); 11231 11232 /* 11233 * Check this I/O for LUN state changes that may 11234 * have happened while this command was blocked. 11235 * The LUN state may have been changed by a command 11236 * ahead of us in the queue, so we need to re-check 11237 * for any states that can be caused by SCSI 11238 * commands. 11239 */ 11240 if (ctl_scsiio_lun_check(lun, entry, 11241 &cur_blocked->scsiio) == 0) { 11242 cur_blocked->io_hdr.flags |= 11243 CTL_FLAG_IS_WAS_ON_RTR; 11244 ctl_enqueue_rtr(cur_blocked); 11245 } else 11246 ctl_done(cur_blocked); 11247 break; 11248 } 11249 default: 11250 /* 11251 * This probably shouldn't happen -- we shouldn't 11252 * get CTL_ACTION_ERROR, or anything else. 11253 */ 11254 break; 11255 } 11256 } 11257 11258 return (CTL_RETVAL_COMPLETE); 11259} 11260 11261/* 11262 * This routine (with one exception) checks LUN flags that can be set by 11263 * commands ahead of us in the OOA queue. These flags have to be checked 11264 * when a command initially comes in, and when we pull a command off the 11265 * blocked queue and are preparing to execute it. The reason we have to 11266 * check these flags for commands on the blocked queue is that the LUN 11267 * state may have been changed by a command ahead of us while we're on the 11268 * blocked queue. 11269 * 11270 * Ordering is somewhat important with these checks, so please pay 11271 * careful attention to the placement of any new checks. 11272 */ 11273static int 11274ctl_scsiio_lun_check(struct ctl_lun *lun, 11275 const struct ctl_cmd_entry *entry, struct ctl_scsiio *ctsio) 11276{ 11277 struct ctl_softc *softc = lun->ctl_softc; 11278 int retval; 11279 uint32_t residx; 11280 11281 retval = 0; 11282 11283 mtx_assert(&lun->lun_lock, MA_OWNED); 11284 11285 /* 11286 * If this shelf is a secondary shelf controller, we may have to 11287 * reject some commands disallowed by HA mode and link state. 11288 */ 11289 if ((lun->flags & CTL_LUN_PRIMARY_SC) == 0) { 11290 if (softc->ha_link == CTL_HA_LINK_OFFLINE && 11291 (entry->flags & CTL_CMD_FLAG_OK_ON_UNAVAIL) == 0) { 11292 ctl_set_lun_unavail(ctsio); 11293 retval = 1; 11294 goto bailout; 11295 } 11296 if ((lun->flags & CTL_LUN_PEER_SC_PRIMARY) == 0 && 11297 (entry->flags & CTL_CMD_FLAG_OK_ON_UNAVAIL) == 0) { 11298 ctl_set_lun_transit(ctsio); 11299 retval = 1; 11300 goto bailout; 11301 } 11302 if (softc->ha_mode == CTL_HA_MODE_ACT_STBY && 11303 (entry->flags & CTL_CMD_FLAG_OK_ON_STANDBY) == 0) { 11304 ctl_set_lun_standby(ctsio); 11305 retval = 1; 11306 goto bailout; 11307 } 11308 11309 /* The rest of checks are only done on executing side */ 11310 if (softc->ha_mode == CTL_HA_MODE_XFER) 11311 goto bailout; 11312 } 11313 11314 if (entry->pattern & CTL_LUN_PAT_WRITE) { 11315 if (lun->be_lun && 11316 lun->be_lun->flags & CTL_LUN_FLAG_READONLY) { 11317 ctl_set_hw_write_protected(ctsio); 11318 retval = 1; 11319 goto bailout; 11320 } 11321 if ((lun->mode_pages.control_page[CTL_PAGE_CURRENT] 11322 .eca_and_aen & SCP_SWP) != 0) { 11323 ctl_set_sense(ctsio, /*current_error*/ 1, 11324 /*sense_key*/ SSD_KEY_DATA_PROTECT, 11325 /*asc*/ 0x27, /*ascq*/ 0x02, SSD_ELEM_NONE); 11326 retval = 1; 11327 goto bailout; 11328 } 11329 } 11330 11331 /* 11332 * Check for a reservation conflict. If this command isn't allowed 11333 * even on reserved LUNs, and if this initiator isn't the one who 11334 * reserved us, reject the command with a reservation conflict. 11335 */ 11336 residx = ctl_get_initindex(&ctsio->io_hdr.nexus); 11337 if ((lun->flags & CTL_LUN_RESERVED) 11338 && ((entry->flags & CTL_CMD_FLAG_ALLOW_ON_RESV) == 0)) { 11339 if (lun->res_idx != residx) { 11340 ctl_set_reservation_conflict(ctsio); 11341 retval = 1; 11342 goto bailout; 11343 } 11344 } 11345 11346 if ((lun->flags & CTL_LUN_PR_RESERVED) == 0 || 11347 (entry->flags & CTL_CMD_FLAG_ALLOW_ON_PR_RESV)) { 11348 /* No reservation or command is allowed. */; 11349 } else if ((entry->flags & CTL_CMD_FLAG_ALLOW_ON_PR_WRESV) && 11350 (lun->pr_res_type == SPR_TYPE_WR_EX || 11351 lun->pr_res_type == SPR_TYPE_WR_EX_RO || 11352 lun->pr_res_type == SPR_TYPE_WR_EX_AR)) { 11353 /* The command is allowed for Write Exclusive resv. */; 11354 } else { 11355 /* 11356 * if we aren't registered or it's a res holder type 11357 * reservation and this isn't the res holder then set a 11358 * conflict. 11359 */ 11360 if (ctl_get_prkey(lun, residx) == 0 || 11361 (residx != lun->pr_res_idx && lun->pr_res_type < 4)) { 11362 ctl_set_reservation_conflict(ctsio); 11363 retval = 1; 11364 goto bailout; 11365 } 11366 } 11367 11368 if ((entry->flags & CTL_CMD_FLAG_OK_ON_NO_MEDIA) == 0) { 11369 if (lun->flags & CTL_LUN_EJECTED) 11370 ctl_set_lun_ejected(ctsio); 11371 else if (lun->flags & CTL_LUN_NO_MEDIA) { 11372 if (lun->flags & CTL_LUN_REMOVABLE) 11373 ctl_set_lun_no_media(ctsio); 11374 else 11375 ctl_set_lun_int_reqd(ctsio); 11376 } else if (lun->flags & CTL_LUN_STOPPED) 11377 ctl_set_lun_stopped(ctsio); 11378 else 11379 goto bailout; 11380 retval = 1; 11381 goto bailout; 11382 } 11383 11384bailout: 11385 return (retval); 11386} 11387 11388static void 11389ctl_failover_io(union ctl_io *io, int have_lock) 11390{ 11391 ctl_set_busy(&io->scsiio); 11392 ctl_done(io); 11393} 11394 11395static void 11396ctl_failover_lun(union ctl_io *rio) 11397{ 11398 struct ctl_softc *softc = control_softc; 11399 struct ctl_lun *lun; 11400 struct ctl_io_hdr *io, *next_io; 11401 uint32_t targ_lun; 11402 11403 targ_lun = rio->io_hdr.nexus.targ_mapped_lun; 11404 CTL_DEBUG_PRINT(("FAILOVER for lun %ju\n", targ_lun)); 11405 11406 /* Find and lock the LUN. */ 11407 mtx_lock(&softc->ctl_lock); 11408 if ((targ_lun < CTL_MAX_LUNS) && 11409 ((lun = softc->ctl_luns[targ_lun]) != NULL)) { 11410 mtx_lock(&lun->lun_lock); 11411 mtx_unlock(&softc->ctl_lock); 11412 if (lun->flags & CTL_LUN_DISABLED) { 11413 mtx_unlock(&lun->lun_lock); 11414 return; 11415 } 11416 } else { 11417 mtx_unlock(&softc->ctl_lock); 11418 return; 11419 } 11420 11421 if (softc->ha_mode == CTL_HA_MODE_XFER) { 11422 TAILQ_FOREACH_SAFE(io, &lun->ooa_queue, ooa_links, next_io) { 11423 /* We are master */ 11424 if (io->flags & CTL_FLAG_FROM_OTHER_SC) { 11425 if (io->flags & CTL_FLAG_IO_ACTIVE) { 11426 io->flags |= CTL_FLAG_ABORT; 11427 io->flags |= CTL_FLAG_FAILOVER; 11428 } else { /* This can be only due to DATAMOVE */ 11429 io->msg_type = CTL_MSG_DATAMOVE_DONE; 11430 io->flags &= ~CTL_FLAG_DMA_INPROG; 11431 io->flags |= CTL_FLAG_IO_ACTIVE; 11432 io->port_status = 31340; 11433 ctl_enqueue_isc((union ctl_io *)io); 11434 } 11435 } 11436 /* We are slave */ 11437 if (io->flags & CTL_FLAG_SENT_2OTHER_SC) { 11438 io->flags &= ~CTL_FLAG_SENT_2OTHER_SC; 11439 if (io->flags & CTL_FLAG_IO_ACTIVE) { 11440 io->flags |= CTL_FLAG_FAILOVER; 11441 } else { 11442 ctl_set_busy(&((union ctl_io *)io)-> 11443 scsiio); 11444 ctl_done((union ctl_io *)io); 11445 } 11446 } 11447 } 11448 } else { /* SERIALIZE modes */ 11449 TAILQ_FOREACH_SAFE(io, &lun->blocked_queue, blocked_links, 11450 next_io) { 11451 /* We are master */ 11452 if (io->flags & CTL_FLAG_FROM_OTHER_SC) { 11453 TAILQ_REMOVE(&lun->blocked_queue, io, 11454 blocked_links); 11455 io->flags &= ~CTL_FLAG_BLOCKED; 11456 TAILQ_REMOVE(&lun->ooa_queue, io, ooa_links); 11457 ctl_free_io((union ctl_io *)io); 11458 } 11459 } 11460 TAILQ_FOREACH_SAFE(io, &lun->ooa_queue, ooa_links, next_io) { 11461 /* We are master */ 11462 if (io->flags & CTL_FLAG_FROM_OTHER_SC) { 11463 TAILQ_REMOVE(&lun->ooa_queue, io, ooa_links); 11464 ctl_free_io((union ctl_io *)io); 11465 } 11466 /* We are slave */ 11467 if (io->flags & CTL_FLAG_SENT_2OTHER_SC) { 11468 io->flags &= ~CTL_FLAG_SENT_2OTHER_SC; 11469 if (!(io->flags & CTL_FLAG_IO_ACTIVE)) { 11470 ctl_set_busy(&((union ctl_io *)io)-> 11471 scsiio); 11472 ctl_done((union ctl_io *)io); 11473 } 11474 } 11475 } 11476 ctl_check_blocked(lun); 11477 } 11478 mtx_unlock(&lun->lun_lock); 11479} 11480 11481static int 11482ctl_scsiio_precheck(struct ctl_softc *softc, struct ctl_scsiio *ctsio) 11483{ 11484 struct ctl_lun *lun; 11485 const struct ctl_cmd_entry *entry; 11486 uint32_t initidx, targ_lun; 11487 int retval; 11488 11489 retval = 0; 11490 11491 lun = NULL; 11492 11493 targ_lun = ctsio->io_hdr.nexus.targ_mapped_lun; 11494 if ((targ_lun < CTL_MAX_LUNS) 11495 && ((lun = softc->ctl_luns[targ_lun]) != NULL)) { 11496 /* 11497 * If the LUN is invalid, pretend that it doesn't exist. 11498 * It will go away as soon as all pending I/O has been 11499 * completed. 11500 */ 11501 mtx_lock(&lun->lun_lock); 11502 if (lun->flags & CTL_LUN_DISABLED) { 11503 mtx_unlock(&lun->lun_lock); 11504 lun = NULL; 11505 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr = NULL; 11506 ctsio->io_hdr.ctl_private[CTL_PRIV_BACKEND_LUN].ptr = NULL; 11507 } else { 11508 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr = lun; 11509 ctsio->io_hdr.ctl_private[CTL_PRIV_BACKEND_LUN].ptr = 11510 lun->be_lun; 11511 11512 /* 11513 * Every I/O goes into the OOA queue for a 11514 * particular LUN, and stays there until completion. 11515 */ 11516#ifdef CTL_TIME_IO 11517 if (TAILQ_EMPTY(&lun->ooa_queue)) { 11518 lun->idle_time += getsbinuptime() - 11519 lun->last_busy; 11520 } 11521#endif 11522 TAILQ_INSERT_TAIL(&lun->ooa_queue, &ctsio->io_hdr, 11523 ooa_links); 11524 } 11525 } else { 11526 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr = NULL; 11527 ctsio->io_hdr.ctl_private[CTL_PRIV_BACKEND_LUN].ptr = NULL; 11528 } 11529 11530 /* Get command entry and return error if it is unsuppotyed. */ 11531 entry = ctl_validate_command(ctsio); 11532 if (entry == NULL) { 11533 if (lun) 11534 mtx_unlock(&lun->lun_lock); 11535 return (retval); 11536 } 11537 11538 ctsio->io_hdr.flags &= ~CTL_FLAG_DATA_MASK; 11539 ctsio->io_hdr.flags |= entry->flags & CTL_FLAG_DATA_MASK; 11540 11541 /* 11542 * Check to see whether we can send this command to LUNs that don't 11543 * exist. This should pretty much only be the case for inquiry 11544 * and request sense. Further checks, below, really require having 11545 * a LUN, so we can't really check the command anymore. Just put 11546 * it on the rtr queue. 11547 */ 11548 if (lun == NULL) { 11549 if (entry->flags & CTL_CMD_FLAG_OK_ON_NO_LUN) { 11550 ctsio->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 11551 ctl_enqueue_rtr((union ctl_io *)ctsio); 11552 return (retval); 11553 } 11554 11555 ctl_set_unsupported_lun(ctsio); 11556 ctl_done((union ctl_io *)ctsio); 11557 CTL_DEBUG_PRINT(("ctl_scsiio_precheck: bailing out due to invalid LUN\n")); 11558 return (retval); 11559 } else { 11560 /* 11561 * Make sure we support this particular command on this LUN. 11562 * e.g., we don't support writes to the control LUN. 11563 */ 11564 if (!ctl_cmd_applicable(lun->be_lun->lun_type, entry)) { 11565 mtx_unlock(&lun->lun_lock); 11566 ctl_set_invalid_opcode(ctsio); 11567 ctl_done((union ctl_io *)ctsio); 11568 return (retval); 11569 } 11570 } 11571 11572 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 11573 11574#ifdef CTL_WITH_CA 11575 /* 11576 * If we've got a request sense, it'll clear the contingent 11577 * allegiance condition. Otherwise, if we have a CA condition for 11578 * this initiator, clear it, because it sent down a command other 11579 * than request sense. 11580 */ 11581 if ((ctsio->cdb[0] != REQUEST_SENSE) 11582 && (ctl_is_set(lun->have_ca, initidx))) 11583 ctl_clear_mask(lun->have_ca, initidx); 11584#endif 11585 11586 /* 11587 * If the command has this flag set, it handles its own unit 11588 * attention reporting, we shouldn't do anything. Otherwise we 11589 * check for any pending unit attentions, and send them back to the 11590 * initiator. We only do this when a command initially comes in, 11591 * not when we pull it off the blocked queue. 11592 * 11593 * According to SAM-3, section 5.3.2, the order that things get 11594 * presented back to the host is basically unit attentions caused 11595 * by some sort of reset event, busy status, reservation conflicts 11596 * or task set full, and finally any other status. 11597 * 11598 * One issue here is that some of the unit attentions we report 11599 * don't fall into the "reset" category (e.g. "reported luns data 11600 * has changed"). So reporting it here, before the reservation 11601 * check, may be technically wrong. I guess the only thing to do 11602 * would be to check for and report the reset events here, and then 11603 * check for the other unit attention types after we check for a 11604 * reservation conflict. 11605 * 11606 * XXX KDM need to fix this 11607 */ 11608 if ((entry->flags & CTL_CMD_FLAG_NO_SENSE) == 0) { 11609 ctl_ua_type ua_type; 11610 11611 ua_type = ctl_build_ua(lun, initidx, &ctsio->sense_data, 11612 SSD_TYPE_NONE); 11613 if (ua_type != CTL_UA_NONE) { 11614 mtx_unlock(&lun->lun_lock); 11615 ctsio->scsi_status = SCSI_STATUS_CHECK_COND; 11616 ctsio->io_hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 11617 ctsio->sense_len = SSD_FULL_SIZE; 11618 ctl_done((union ctl_io *)ctsio); 11619 return (retval); 11620 } 11621 } 11622 11623 11624 if (ctl_scsiio_lun_check(lun, entry, ctsio) != 0) { 11625 mtx_unlock(&lun->lun_lock); 11626 ctl_done((union ctl_io *)ctsio); 11627 return (retval); 11628 } 11629 11630 /* 11631 * XXX CHD this is where we want to send IO to other side if 11632 * this LUN is secondary on this SC. We will need to make a copy 11633 * of the IO and flag the IO on this side as SENT_2OTHER and the flag 11634 * the copy we send as FROM_OTHER. 11635 * We also need to stuff the address of the original IO so we can 11636 * find it easily. Something similar will need be done on the other 11637 * side so when we are done we can find the copy. 11638 */ 11639 if ((lun->flags & CTL_LUN_PRIMARY_SC) == 0 && 11640 (lun->flags & CTL_LUN_PEER_SC_PRIMARY) != 0 && 11641 (entry->flags & CTL_CMD_FLAG_RUN_HERE) == 0) { 11642 union ctl_ha_msg msg_info; 11643 int isc_retval; 11644 11645 ctsio->io_hdr.flags |= CTL_FLAG_SENT_2OTHER_SC; 11646 ctsio->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 11647 mtx_unlock(&lun->lun_lock); 11648 11649 msg_info.hdr.msg_type = CTL_MSG_SERIALIZE; 11650 msg_info.hdr.original_sc = (union ctl_io *)ctsio; 11651 msg_info.hdr.serializing_sc = NULL; 11652 msg_info.hdr.nexus = ctsio->io_hdr.nexus; 11653 msg_info.scsi.tag_num = ctsio->tag_num; 11654 msg_info.scsi.tag_type = ctsio->tag_type; 11655 msg_info.scsi.cdb_len = ctsio->cdb_len; 11656 memcpy(msg_info.scsi.cdb, ctsio->cdb, CTL_MAX_CDBLEN); 11657 11658 if ((isc_retval = ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 11659 sizeof(msg_info.scsi) - sizeof(msg_info.scsi.sense_data), 11660 M_WAITOK)) > CTL_HA_STATUS_SUCCESS) { 11661 ctl_set_busy(ctsio); 11662 ctl_done((union ctl_io *)ctsio); 11663 return (retval); 11664 } 11665 return (retval); 11666 } 11667 11668 switch (ctl_check_ooa(lun, (union ctl_io *)ctsio, 11669 (union ctl_io *)TAILQ_PREV(&ctsio->io_hdr, 11670 ctl_ooaq, ooa_links))) { 11671 case CTL_ACTION_BLOCK: 11672 ctsio->io_hdr.flags |= CTL_FLAG_BLOCKED; 11673 TAILQ_INSERT_TAIL(&lun->blocked_queue, &ctsio->io_hdr, 11674 blocked_links); 11675 mtx_unlock(&lun->lun_lock); 11676 return (retval); 11677 case CTL_ACTION_PASS: 11678 case CTL_ACTION_SKIP: 11679 ctsio->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 11680 mtx_unlock(&lun->lun_lock); 11681 ctl_enqueue_rtr((union ctl_io *)ctsio); 11682 break; 11683 case CTL_ACTION_OVERLAP: 11684 mtx_unlock(&lun->lun_lock); 11685 ctl_set_overlapped_cmd(ctsio); 11686 ctl_done((union ctl_io *)ctsio); 11687 break; 11688 case CTL_ACTION_OVERLAP_TAG: 11689 mtx_unlock(&lun->lun_lock); 11690 ctl_set_overlapped_tag(ctsio, ctsio->tag_num & 0xff); 11691 ctl_done((union ctl_io *)ctsio); 11692 break; 11693 case CTL_ACTION_ERROR: 11694 default: 11695 mtx_unlock(&lun->lun_lock); 11696 ctl_set_internal_failure(ctsio, 11697 /*sks_valid*/ 0, 11698 /*retry_count*/ 0); 11699 ctl_done((union ctl_io *)ctsio); 11700 break; 11701 } 11702 return (retval); 11703} 11704 11705const struct ctl_cmd_entry * 11706ctl_get_cmd_entry(struct ctl_scsiio *ctsio, int *sa) 11707{ 11708 const struct ctl_cmd_entry *entry; 11709 int service_action; 11710 11711 entry = &ctl_cmd_table[ctsio->cdb[0]]; 11712 if (sa) 11713 *sa = ((entry->flags & CTL_CMD_FLAG_SA5) != 0); 11714 if (entry->flags & CTL_CMD_FLAG_SA5) { 11715 service_action = ctsio->cdb[1] & SERVICE_ACTION_MASK; 11716 entry = &((const struct ctl_cmd_entry *) 11717 entry->execute)[service_action]; 11718 } 11719 return (entry); 11720} 11721 11722const struct ctl_cmd_entry * 11723ctl_validate_command(struct ctl_scsiio *ctsio) 11724{ 11725 const struct ctl_cmd_entry *entry; 11726 int i, sa; 11727 uint8_t diff; 11728 11729 entry = ctl_get_cmd_entry(ctsio, &sa); 11730 if (entry->execute == NULL) { 11731 if (sa) 11732 ctl_set_invalid_field(ctsio, 11733 /*sks_valid*/ 1, 11734 /*command*/ 1, 11735 /*field*/ 1, 11736 /*bit_valid*/ 1, 11737 /*bit*/ 4); 11738 else 11739 ctl_set_invalid_opcode(ctsio); 11740 ctl_done((union ctl_io *)ctsio); 11741 return (NULL); 11742 } 11743 KASSERT(entry->length > 0, 11744 ("Not defined length for command 0x%02x/0x%02x", 11745 ctsio->cdb[0], ctsio->cdb[1])); 11746 for (i = 1; i < entry->length; i++) { 11747 diff = ctsio->cdb[i] & ~entry->usage[i - 1]; 11748 if (diff == 0) 11749 continue; 11750 ctl_set_invalid_field(ctsio, 11751 /*sks_valid*/ 1, 11752 /*command*/ 1, 11753 /*field*/ i, 11754 /*bit_valid*/ 1, 11755 /*bit*/ fls(diff) - 1); 11756 ctl_done((union ctl_io *)ctsio); 11757 return (NULL); 11758 } 11759 return (entry); 11760} 11761 11762static int 11763ctl_cmd_applicable(uint8_t lun_type, const struct ctl_cmd_entry *entry) 11764{ 11765 11766 switch (lun_type) { 11767 case T_DIRECT: 11768 if ((entry->flags & CTL_CMD_FLAG_OK_ON_DIRECT) == 0) 11769 return (0); 11770 break; 11771 case T_PROCESSOR: 11772 if ((entry->flags & CTL_CMD_FLAG_OK_ON_PROC) == 0) 11773 return (0); 11774 break; 11775 case T_CDROM: 11776 if ((entry->flags & CTL_CMD_FLAG_OK_ON_CDROM) == 0) 11777 return (0); 11778 break; 11779 default: 11780 return (0); 11781 } 11782 return (1); 11783} 11784 11785static int 11786ctl_scsiio(struct ctl_scsiio *ctsio) 11787{ 11788 int retval; 11789 const struct ctl_cmd_entry *entry; 11790 11791 retval = CTL_RETVAL_COMPLETE; 11792 11793 CTL_DEBUG_PRINT(("ctl_scsiio cdb[0]=%02X\n", ctsio->cdb[0])); 11794 11795 entry = ctl_get_cmd_entry(ctsio, NULL); 11796 11797 /* 11798 * If this I/O has been aborted, just send it straight to 11799 * ctl_done() without executing it. 11800 */ 11801 if (ctsio->io_hdr.flags & CTL_FLAG_ABORT) { 11802 ctl_done((union ctl_io *)ctsio); 11803 goto bailout; 11804 } 11805 11806 /* 11807 * All the checks should have been handled by ctl_scsiio_precheck(). 11808 * We should be clear now to just execute the I/O. 11809 */ 11810 retval = entry->execute(ctsio); 11811 11812bailout: 11813 return (retval); 11814} 11815 11816/* 11817 * Since we only implement one target right now, a bus reset simply resets 11818 * our single target. 11819 */ 11820static int 11821ctl_bus_reset(struct ctl_softc *softc, union ctl_io *io) 11822{ 11823 return(ctl_target_reset(softc, io, CTL_UA_BUS_RESET)); 11824} 11825 11826static int 11827ctl_target_reset(struct ctl_softc *softc, union ctl_io *io, 11828 ctl_ua_type ua_type) 11829{ 11830 struct ctl_port *port; 11831 struct ctl_lun *lun; 11832 int retval; 11833 11834 if (!(io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)) { 11835 union ctl_ha_msg msg_info; 11836 11837 msg_info.hdr.nexus = io->io_hdr.nexus; 11838 if (ua_type==CTL_UA_TARG_RESET) 11839 msg_info.task.task_action = CTL_TASK_TARGET_RESET; 11840 else 11841 msg_info.task.task_action = CTL_TASK_BUS_RESET; 11842 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 11843 msg_info.hdr.original_sc = NULL; 11844 msg_info.hdr.serializing_sc = NULL; 11845 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 11846 sizeof(msg_info.task), M_WAITOK); 11847 } 11848 retval = 0; 11849 11850 mtx_lock(&softc->ctl_lock); 11851 port = ctl_io_port(&io->io_hdr); 11852 STAILQ_FOREACH(lun, &softc->lun_list, links) { 11853 if (port != NULL && 11854 ctl_lun_map_to_port(port, lun->lun) >= CTL_MAX_LUNS) 11855 continue; 11856 retval += ctl_do_lun_reset(lun, io, ua_type); 11857 } 11858 mtx_unlock(&softc->ctl_lock); 11859 io->taskio.task_status = CTL_TASK_FUNCTION_COMPLETE; 11860 return (retval); 11861} 11862 11863/* 11864 * The LUN should always be set. The I/O is optional, and is used to 11865 * distinguish between I/Os sent by this initiator, and by other 11866 * initiators. We set unit attention for initiators other than this one. 11867 * SAM-3 is vague on this point. It does say that a unit attention should 11868 * be established for other initiators when a LUN is reset (see section 11869 * 5.7.3), but it doesn't specifically say that the unit attention should 11870 * be established for this particular initiator when a LUN is reset. Here 11871 * is the relevant text, from SAM-3 rev 8: 11872 * 11873 * 5.7.2 When a SCSI initiator port aborts its own tasks 11874 * 11875 * When a SCSI initiator port causes its own task(s) to be aborted, no 11876 * notification that the task(s) have been aborted shall be returned to 11877 * the SCSI initiator port other than the completion response for the 11878 * command or task management function action that caused the task(s) to 11879 * be aborted and notification(s) associated with related effects of the 11880 * action (e.g., a reset unit attention condition). 11881 * 11882 * XXX KDM for now, we're setting unit attention for all initiators. 11883 */ 11884static int 11885ctl_do_lun_reset(struct ctl_lun *lun, union ctl_io *io, ctl_ua_type ua_type) 11886{ 11887 union ctl_io *xio; 11888#if 0 11889 uint32_t initidx; 11890#endif 11891 int i; 11892 11893 mtx_lock(&lun->lun_lock); 11894 /* 11895 * Run through the OOA queue and abort each I/O. 11896 */ 11897 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 11898 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 11899 xio->io_hdr.flags |= CTL_FLAG_ABORT | CTL_FLAG_ABORT_STATUS; 11900 } 11901 11902 /* 11903 * This version sets unit attention for every 11904 */ 11905#if 0 11906 initidx = ctl_get_initindex(&io->io_hdr.nexus); 11907 ctl_est_ua_all(lun, initidx, ua_type); 11908#else 11909 ctl_est_ua_all(lun, -1, ua_type); 11910#endif 11911 11912 /* 11913 * A reset (any kind, really) clears reservations established with 11914 * RESERVE/RELEASE. It does not clear reservations established 11915 * with PERSISTENT RESERVE OUT, but we don't support that at the 11916 * moment anyway. See SPC-2, section 5.6. SPC-3 doesn't address 11917 * reservations made with the RESERVE/RELEASE commands, because 11918 * those commands are obsolete in SPC-3. 11919 */ 11920 lun->flags &= ~CTL_LUN_RESERVED; 11921 11922#ifdef CTL_WITH_CA 11923 for (i = 0; i < CTL_MAX_INITIATORS; i++) 11924 ctl_clear_mask(lun->have_ca, i); 11925#endif 11926 lun->prevent_count = 0; 11927 for (i = 0; i < CTL_MAX_INITIATORS; i++) 11928 ctl_clear_mask(lun->prevent, i); 11929 mtx_unlock(&lun->lun_lock); 11930 11931 return (0); 11932} 11933 11934static int 11935ctl_lun_reset(struct ctl_softc *softc, union ctl_io *io) 11936{ 11937 struct ctl_lun *lun; 11938 uint32_t targ_lun; 11939 int retval; 11940 11941 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 11942 mtx_lock(&softc->ctl_lock); 11943 if ((targ_lun >= CTL_MAX_LUNS) || 11944 (lun = softc->ctl_luns[targ_lun]) == NULL) { 11945 mtx_unlock(&softc->ctl_lock); 11946 io->taskio.task_status = CTL_TASK_LUN_DOES_NOT_EXIST; 11947 return (1); 11948 } 11949 retval = ctl_do_lun_reset(lun, io, CTL_UA_LUN_RESET); 11950 mtx_unlock(&softc->ctl_lock); 11951 io->taskio.task_status = CTL_TASK_FUNCTION_COMPLETE; 11952 11953 if ((io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) == 0) { 11954 union ctl_ha_msg msg_info; 11955 11956 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 11957 msg_info.hdr.nexus = io->io_hdr.nexus; 11958 msg_info.task.task_action = CTL_TASK_LUN_RESET; 11959 msg_info.hdr.original_sc = NULL; 11960 msg_info.hdr.serializing_sc = NULL; 11961 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 11962 sizeof(msg_info.task), M_WAITOK); 11963 } 11964 return (retval); 11965} 11966 11967static void 11968ctl_abort_tasks_lun(struct ctl_lun *lun, uint32_t targ_port, uint32_t init_id, 11969 int other_sc) 11970{ 11971 union ctl_io *xio; 11972 11973 mtx_assert(&lun->lun_lock, MA_OWNED); 11974 11975 /* 11976 * Run through the OOA queue and attempt to find the given I/O. 11977 * The target port, initiator ID, tag type and tag number have to 11978 * match the values that we got from the initiator. If we have an 11979 * untagged command to abort, simply abort the first untagged command 11980 * we come to. We only allow one untagged command at a time of course. 11981 */ 11982 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 11983 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 11984 11985 if ((targ_port == UINT32_MAX || 11986 targ_port == xio->io_hdr.nexus.targ_port) && 11987 (init_id == UINT32_MAX || 11988 init_id == xio->io_hdr.nexus.initid)) { 11989 if (targ_port != xio->io_hdr.nexus.targ_port || 11990 init_id != xio->io_hdr.nexus.initid) 11991 xio->io_hdr.flags |= CTL_FLAG_ABORT_STATUS; 11992 xio->io_hdr.flags |= CTL_FLAG_ABORT; 11993 if (!other_sc && !(lun->flags & CTL_LUN_PRIMARY_SC)) { 11994 union ctl_ha_msg msg_info; 11995 11996 msg_info.hdr.nexus = xio->io_hdr.nexus; 11997 msg_info.task.task_action = CTL_TASK_ABORT_TASK; 11998 msg_info.task.tag_num = xio->scsiio.tag_num; 11999 msg_info.task.tag_type = xio->scsiio.tag_type; 12000 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 12001 msg_info.hdr.original_sc = NULL; 12002 msg_info.hdr.serializing_sc = NULL; 12003 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 12004 sizeof(msg_info.task), M_NOWAIT); 12005 } 12006 } 12007 } 12008} 12009 12010static int 12011ctl_abort_task_set(union ctl_io *io) 12012{ 12013 struct ctl_softc *softc = control_softc; 12014 struct ctl_lun *lun; 12015 uint32_t targ_lun; 12016 12017 /* 12018 * Look up the LUN. 12019 */ 12020 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12021 mtx_lock(&softc->ctl_lock); 12022 if ((targ_lun >= CTL_MAX_LUNS) || 12023 (lun = softc->ctl_luns[targ_lun]) == NULL) { 12024 mtx_unlock(&softc->ctl_lock); 12025 io->taskio.task_status = CTL_TASK_LUN_DOES_NOT_EXIST; 12026 return (1); 12027 } 12028 12029 mtx_lock(&lun->lun_lock); 12030 mtx_unlock(&softc->ctl_lock); 12031 if (io->taskio.task_action == CTL_TASK_ABORT_TASK_SET) { 12032 ctl_abort_tasks_lun(lun, io->io_hdr.nexus.targ_port, 12033 io->io_hdr.nexus.initid, 12034 (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) != 0); 12035 } else { /* CTL_TASK_CLEAR_TASK_SET */ 12036 ctl_abort_tasks_lun(lun, UINT32_MAX, UINT32_MAX, 12037 (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) != 0); 12038 } 12039 mtx_unlock(&lun->lun_lock); 12040 io->taskio.task_status = CTL_TASK_FUNCTION_COMPLETE; 12041 return (0); 12042} 12043 12044static int 12045ctl_i_t_nexus_reset(union ctl_io *io) 12046{ 12047 struct ctl_softc *softc = control_softc; 12048 struct ctl_lun *lun; 12049 uint32_t initidx; 12050 12051 if (!(io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)) { 12052 union ctl_ha_msg msg_info; 12053 12054 msg_info.hdr.nexus = io->io_hdr.nexus; 12055 msg_info.task.task_action = CTL_TASK_I_T_NEXUS_RESET; 12056 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 12057 msg_info.hdr.original_sc = NULL; 12058 msg_info.hdr.serializing_sc = NULL; 12059 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 12060 sizeof(msg_info.task), M_WAITOK); 12061 } 12062 12063 initidx = ctl_get_initindex(&io->io_hdr.nexus); 12064 mtx_lock(&softc->ctl_lock); 12065 STAILQ_FOREACH(lun, &softc->lun_list, links) { 12066 mtx_lock(&lun->lun_lock); 12067 ctl_abort_tasks_lun(lun, io->io_hdr.nexus.targ_port, 12068 io->io_hdr.nexus.initid, 1); 12069#ifdef CTL_WITH_CA 12070 ctl_clear_mask(lun->have_ca, initidx); 12071#endif 12072 if ((lun->flags & CTL_LUN_RESERVED) && (lun->res_idx == initidx)) 12073 lun->flags &= ~CTL_LUN_RESERVED; 12074 if (ctl_is_set(lun->prevent, initidx)) { 12075 ctl_clear_mask(lun->prevent, initidx); 12076 lun->prevent_count--; 12077 } 12078 ctl_est_ua(lun, initidx, CTL_UA_I_T_NEXUS_LOSS); 12079 mtx_unlock(&lun->lun_lock); 12080 } 12081 mtx_unlock(&softc->ctl_lock); 12082 io->taskio.task_status = CTL_TASK_FUNCTION_COMPLETE; 12083 return (0); 12084} 12085 12086static int 12087ctl_abort_task(union ctl_io *io) 12088{ 12089 union ctl_io *xio; 12090 struct ctl_lun *lun; 12091 struct ctl_softc *softc; 12092#if 0 12093 struct sbuf sb; 12094 char printbuf[128]; 12095#endif 12096 int found; 12097 uint32_t targ_lun; 12098 12099 softc = control_softc; 12100 found = 0; 12101 12102 /* 12103 * Look up the LUN. 12104 */ 12105 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12106 mtx_lock(&softc->ctl_lock); 12107 if ((targ_lun >= CTL_MAX_LUNS) || 12108 (lun = softc->ctl_luns[targ_lun]) == NULL) { 12109 mtx_unlock(&softc->ctl_lock); 12110 io->taskio.task_status = CTL_TASK_LUN_DOES_NOT_EXIST; 12111 return (1); 12112 } 12113 12114#if 0 12115 printf("ctl_abort_task: called for lun %lld, tag %d type %d\n", 12116 lun->lun, io->taskio.tag_num, io->taskio.tag_type); 12117#endif 12118 12119 mtx_lock(&lun->lun_lock); 12120 mtx_unlock(&softc->ctl_lock); 12121 /* 12122 * Run through the OOA queue and attempt to find the given I/O. 12123 * The target port, initiator ID, tag type and tag number have to 12124 * match the values that we got from the initiator. If we have an 12125 * untagged command to abort, simply abort the first untagged command 12126 * we come to. We only allow one untagged command at a time of course. 12127 */ 12128 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 12129 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 12130#if 0 12131 sbuf_new(&sb, printbuf, sizeof(printbuf), SBUF_FIXEDLEN); 12132 12133 sbuf_printf(&sb, "LUN %lld tag %d type %d%s%s%s%s: ", 12134 lun->lun, xio->scsiio.tag_num, 12135 xio->scsiio.tag_type, 12136 (xio->io_hdr.blocked_links.tqe_prev 12137 == NULL) ? "" : " BLOCKED", 12138 (xio->io_hdr.flags & 12139 CTL_FLAG_DMA_INPROG) ? " DMA" : "", 12140 (xio->io_hdr.flags & 12141 CTL_FLAG_ABORT) ? " ABORT" : "", 12142 (xio->io_hdr.flags & 12143 CTL_FLAG_IS_WAS_ON_RTR ? " RTR" : "")); 12144 ctl_scsi_command_string(&xio->scsiio, NULL, &sb); 12145 sbuf_finish(&sb); 12146 printf("%s\n", sbuf_data(&sb)); 12147#endif 12148 12149 if ((xio->io_hdr.nexus.targ_port != io->io_hdr.nexus.targ_port) 12150 || (xio->io_hdr.nexus.initid != io->io_hdr.nexus.initid) 12151 || (xio->io_hdr.flags & CTL_FLAG_ABORT)) 12152 continue; 12153 12154 /* 12155 * If the abort says that the task is untagged, the 12156 * task in the queue must be untagged. Otherwise, 12157 * we just check to see whether the tag numbers 12158 * match. This is because the QLogic firmware 12159 * doesn't pass back the tag type in an abort 12160 * request. 12161 */ 12162#if 0 12163 if (((xio->scsiio.tag_type == CTL_TAG_UNTAGGED) 12164 && (io->taskio.tag_type == CTL_TAG_UNTAGGED)) 12165 || (xio->scsiio.tag_num == io->taskio.tag_num)) 12166#endif 12167 /* 12168 * XXX KDM we've got problems with FC, because it 12169 * doesn't send down a tag type with aborts. So we 12170 * can only really go by the tag number... 12171 * This may cause problems with parallel SCSI. 12172 * Need to figure that out!! 12173 */ 12174 if (xio->scsiio.tag_num == io->taskio.tag_num) { 12175 xio->io_hdr.flags |= CTL_FLAG_ABORT; 12176 found = 1; 12177 if ((io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) == 0 && 12178 !(lun->flags & CTL_LUN_PRIMARY_SC)) { 12179 union ctl_ha_msg msg_info; 12180 12181 msg_info.hdr.nexus = io->io_hdr.nexus; 12182 msg_info.task.task_action = CTL_TASK_ABORT_TASK; 12183 msg_info.task.tag_num = io->taskio.tag_num; 12184 msg_info.task.tag_type = io->taskio.tag_type; 12185 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 12186 msg_info.hdr.original_sc = NULL; 12187 msg_info.hdr.serializing_sc = NULL; 12188#if 0 12189 printf("Sent Abort to other side\n"); 12190#endif 12191 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 12192 sizeof(msg_info.task), M_NOWAIT); 12193 } 12194#if 0 12195 printf("ctl_abort_task: found I/O to abort\n"); 12196#endif 12197 } 12198 } 12199 mtx_unlock(&lun->lun_lock); 12200 12201 if (found == 0) { 12202 /* 12203 * This isn't really an error. It's entirely possible for 12204 * the abort and command completion to cross on the wire. 12205 * This is more of an informative/diagnostic error. 12206 */ 12207#if 0 12208 printf("ctl_abort_task: ABORT sent for nonexistent I/O: " 12209 "%u:%u:%u tag %d type %d\n", 12210 io->io_hdr.nexus.initid, 12211 io->io_hdr.nexus.targ_port, 12212 io->io_hdr.nexus.targ_lun, io->taskio.tag_num, 12213 io->taskio.tag_type); 12214#endif 12215 } 12216 io->taskio.task_status = CTL_TASK_FUNCTION_COMPLETE; 12217 return (0); 12218} 12219 12220static int 12221ctl_query_task(union ctl_io *io, int task_set) 12222{ 12223 union ctl_io *xio; 12224 struct ctl_lun *lun; 12225 struct ctl_softc *softc; 12226 int found = 0; 12227 uint32_t targ_lun; 12228 12229 softc = control_softc; 12230 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12231 mtx_lock(&softc->ctl_lock); 12232 if ((targ_lun >= CTL_MAX_LUNS) || 12233 (lun = softc->ctl_luns[targ_lun]) == NULL) { 12234 mtx_unlock(&softc->ctl_lock); 12235 io->taskio.task_status = CTL_TASK_LUN_DOES_NOT_EXIST; 12236 return (1); 12237 } 12238 mtx_lock(&lun->lun_lock); 12239 mtx_unlock(&softc->ctl_lock); 12240 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 12241 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 12242 12243 if ((xio->io_hdr.nexus.targ_port != io->io_hdr.nexus.targ_port) 12244 || (xio->io_hdr.nexus.initid != io->io_hdr.nexus.initid) 12245 || (xio->io_hdr.flags & CTL_FLAG_ABORT)) 12246 continue; 12247 12248 if (task_set || xio->scsiio.tag_num == io->taskio.tag_num) { 12249 found = 1; 12250 break; 12251 } 12252 } 12253 mtx_unlock(&lun->lun_lock); 12254 if (found) 12255 io->taskio.task_status = CTL_TASK_FUNCTION_SUCCEEDED; 12256 else 12257 io->taskio.task_status = CTL_TASK_FUNCTION_COMPLETE; 12258 return (0); 12259} 12260 12261static int 12262ctl_query_async_event(union ctl_io *io) 12263{ 12264 struct ctl_lun *lun; 12265 struct ctl_softc *softc; 12266 ctl_ua_type ua; 12267 uint32_t targ_lun, initidx; 12268 12269 softc = control_softc; 12270 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12271 mtx_lock(&softc->ctl_lock); 12272 if ((targ_lun >= CTL_MAX_LUNS) || 12273 (lun = softc->ctl_luns[targ_lun]) == NULL) { 12274 mtx_unlock(&softc->ctl_lock); 12275 io->taskio.task_status = CTL_TASK_LUN_DOES_NOT_EXIST; 12276 return (1); 12277 } 12278 mtx_lock(&lun->lun_lock); 12279 mtx_unlock(&softc->ctl_lock); 12280 initidx = ctl_get_initindex(&io->io_hdr.nexus); 12281 ua = ctl_build_qae(lun, initidx, io->taskio.task_resp); 12282 mtx_unlock(&lun->lun_lock); 12283 if (ua != CTL_UA_NONE) 12284 io->taskio.task_status = CTL_TASK_FUNCTION_SUCCEEDED; 12285 else 12286 io->taskio.task_status = CTL_TASK_FUNCTION_COMPLETE; 12287 return (0); 12288} 12289 12290static void 12291ctl_run_task(union ctl_io *io) 12292{ 12293 struct ctl_softc *softc = control_softc; 12294 int retval = 1; 12295 12296 CTL_DEBUG_PRINT(("ctl_run_task\n")); 12297 KASSERT(io->io_hdr.io_type == CTL_IO_TASK, 12298 ("ctl_run_task: Unextected io_type %d\n", io->io_hdr.io_type)); 12299 io->taskio.task_status = CTL_TASK_FUNCTION_NOT_SUPPORTED; 12300 bzero(io->taskio.task_resp, sizeof(io->taskio.task_resp)); 12301 switch (io->taskio.task_action) { 12302 case CTL_TASK_ABORT_TASK: 12303 retval = ctl_abort_task(io); 12304 break; 12305 case CTL_TASK_ABORT_TASK_SET: 12306 case CTL_TASK_CLEAR_TASK_SET: 12307 retval = ctl_abort_task_set(io); 12308 break; 12309 case CTL_TASK_CLEAR_ACA: 12310 break; 12311 case CTL_TASK_I_T_NEXUS_RESET: 12312 retval = ctl_i_t_nexus_reset(io); 12313 break; 12314 case CTL_TASK_LUN_RESET: 12315 retval = ctl_lun_reset(softc, io); 12316 break; 12317 case CTL_TASK_TARGET_RESET: 12318 retval = ctl_target_reset(softc, io, CTL_UA_TARG_RESET); 12319 break; 12320 case CTL_TASK_BUS_RESET: 12321 retval = ctl_bus_reset(softc, io); 12322 break; 12323 case CTL_TASK_PORT_LOGIN: 12324 break; 12325 case CTL_TASK_PORT_LOGOUT: 12326 break; 12327 case CTL_TASK_QUERY_TASK: 12328 retval = ctl_query_task(io, 0); 12329 break; 12330 case CTL_TASK_QUERY_TASK_SET: 12331 retval = ctl_query_task(io, 1); 12332 break; 12333 case CTL_TASK_QUERY_ASYNC_EVENT: 12334 retval = ctl_query_async_event(io); 12335 break; 12336 default: 12337 printf("%s: got unknown task management event %d\n", 12338 __func__, io->taskio.task_action); 12339 break; 12340 } 12341 if (retval == 0) 12342 io->io_hdr.status = CTL_SUCCESS; 12343 else 12344 io->io_hdr.status = CTL_ERROR; 12345 ctl_done(io); 12346} 12347 12348/* 12349 * For HA operation. Handle commands that come in from the other 12350 * controller. 12351 */ 12352static void 12353ctl_handle_isc(union ctl_io *io) 12354{ 12355 int free_io; 12356 struct ctl_lun *lun; 12357 struct ctl_softc *softc = control_softc; 12358 uint32_t targ_lun; 12359 12360 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12361 lun = softc->ctl_luns[targ_lun]; 12362 12363 switch (io->io_hdr.msg_type) { 12364 case CTL_MSG_SERIALIZE: 12365 free_io = ctl_serialize_other_sc_cmd(&io->scsiio); 12366 break; 12367 case CTL_MSG_R2R: { 12368 const struct ctl_cmd_entry *entry; 12369 12370 /* 12371 * This is only used in SER_ONLY mode. 12372 */ 12373 free_io = 0; 12374 entry = ctl_get_cmd_entry(&io->scsiio, NULL); 12375 mtx_lock(&lun->lun_lock); 12376 if (ctl_scsiio_lun_check(lun, 12377 entry, (struct ctl_scsiio *)io) != 0) { 12378 mtx_unlock(&lun->lun_lock); 12379 ctl_done(io); 12380 break; 12381 } 12382 io->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 12383 mtx_unlock(&lun->lun_lock); 12384 ctl_enqueue_rtr(io); 12385 break; 12386 } 12387 case CTL_MSG_FINISH_IO: 12388 if (softc->ha_mode == CTL_HA_MODE_XFER) { 12389 free_io = 0; 12390 ctl_done(io); 12391 } else { 12392 free_io = 1; 12393 mtx_lock(&lun->lun_lock); 12394 TAILQ_REMOVE(&lun->ooa_queue, &io->io_hdr, 12395 ooa_links); 12396 ctl_check_blocked(lun); 12397 mtx_unlock(&lun->lun_lock); 12398 } 12399 break; 12400 case CTL_MSG_PERS_ACTION: 12401 ctl_hndl_per_res_out_on_other_sc( 12402 (union ctl_ha_msg *)&io->presio.pr_msg); 12403 free_io = 1; 12404 break; 12405 case CTL_MSG_BAD_JUJU: 12406 free_io = 0; 12407 ctl_done(io); 12408 break; 12409 case CTL_MSG_DATAMOVE: 12410 /* Only used in XFER mode */ 12411 free_io = 0; 12412 ctl_datamove_remote(io); 12413 break; 12414 case CTL_MSG_DATAMOVE_DONE: 12415 /* Only used in XFER mode */ 12416 free_io = 0; 12417 io->scsiio.be_move_done(io); 12418 break; 12419 case CTL_MSG_FAILOVER: 12420 ctl_failover_lun(io); 12421 free_io = 1; 12422 break; 12423 default: 12424 free_io = 1; 12425 printf("%s: Invalid message type %d\n", 12426 __func__, io->io_hdr.msg_type); 12427 break; 12428 } 12429 if (free_io) 12430 ctl_free_io(io); 12431 12432} 12433 12434 12435/* 12436 * Returns the match type in the case of a match, or CTL_LUN_PAT_NONE if 12437 * there is no match. 12438 */ 12439static ctl_lun_error_pattern 12440ctl_cmd_pattern_match(struct ctl_scsiio *ctsio, struct ctl_error_desc *desc) 12441{ 12442 const struct ctl_cmd_entry *entry; 12443 ctl_lun_error_pattern filtered_pattern, pattern; 12444 12445 pattern = desc->error_pattern; 12446 12447 /* 12448 * XXX KDM we need more data passed into this function to match a 12449 * custom pattern, and we actually need to implement custom pattern 12450 * matching. 12451 */ 12452 if (pattern & CTL_LUN_PAT_CMD) 12453 return (CTL_LUN_PAT_CMD); 12454 12455 if ((pattern & CTL_LUN_PAT_MASK) == CTL_LUN_PAT_ANY) 12456 return (CTL_LUN_PAT_ANY); 12457 12458 entry = ctl_get_cmd_entry(ctsio, NULL); 12459 12460 filtered_pattern = entry->pattern & pattern; 12461 12462 /* 12463 * If the user requested specific flags in the pattern (e.g. 12464 * CTL_LUN_PAT_RANGE), make sure the command supports all of those 12465 * flags. 12466 * 12467 * If the user did not specify any flags, it doesn't matter whether 12468 * or not the command supports the flags. 12469 */ 12470 if ((filtered_pattern & ~CTL_LUN_PAT_MASK) != 12471 (pattern & ~CTL_LUN_PAT_MASK)) 12472 return (CTL_LUN_PAT_NONE); 12473 12474 /* 12475 * If the user asked for a range check, see if the requested LBA 12476 * range overlaps with this command's LBA range. 12477 */ 12478 if (filtered_pattern & CTL_LUN_PAT_RANGE) { 12479 uint64_t lba1; 12480 uint64_t len1; 12481 ctl_action action; 12482 int retval; 12483 12484 retval = ctl_get_lba_len((union ctl_io *)ctsio, &lba1, &len1); 12485 if (retval != 0) 12486 return (CTL_LUN_PAT_NONE); 12487 12488 action = ctl_extent_check_lba(lba1, len1, desc->lba_range.lba, 12489 desc->lba_range.len, FALSE); 12490 /* 12491 * A "pass" means that the LBA ranges don't overlap, so 12492 * this doesn't match the user's range criteria. 12493 */ 12494 if (action == CTL_ACTION_PASS) 12495 return (CTL_LUN_PAT_NONE); 12496 } 12497 12498 return (filtered_pattern); 12499} 12500 12501static void 12502ctl_inject_error(struct ctl_lun *lun, union ctl_io *io) 12503{ 12504 struct ctl_error_desc *desc, *desc2; 12505 12506 mtx_assert(&lun->lun_lock, MA_OWNED); 12507 12508 STAILQ_FOREACH_SAFE(desc, &lun->error_list, links, desc2) { 12509 ctl_lun_error_pattern pattern; 12510 /* 12511 * Check to see whether this particular command matches 12512 * the pattern in the descriptor. 12513 */ 12514 pattern = ctl_cmd_pattern_match(&io->scsiio, desc); 12515 if ((pattern & CTL_LUN_PAT_MASK) == CTL_LUN_PAT_NONE) 12516 continue; 12517 12518 switch (desc->lun_error & CTL_LUN_INJ_TYPE) { 12519 case CTL_LUN_INJ_ABORTED: 12520 ctl_set_aborted(&io->scsiio); 12521 break; 12522 case CTL_LUN_INJ_MEDIUM_ERR: 12523 ctl_set_medium_error(&io->scsiio, 12524 (io->io_hdr.flags & CTL_FLAG_DATA_MASK) != 12525 CTL_FLAG_DATA_OUT); 12526 break; 12527 case CTL_LUN_INJ_UA: 12528 /* 29h/00h POWER ON, RESET, OR BUS DEVICE RESET 12529 * OCCURRED */ 12530 ctl_set_ua(&io->scsiio, 0x29, 0x00); 12531 break; 12532 case CTL_LUN_INJ_CUSTOM: 12533 /* 12534 * We're assuming the user knows what he is doing. 12535 * Just copy the sense information without doing 12536 * checks. 12537 */ 12538 bcopy(&desc->custom_sense, &io->scsiio.sense_data, 12539 MIN(sizeof(desc->custom_sense), 12540 sizeof(io->scsiio.sense_data))); 12541 io->scsiio.scsi_status = SCSI_STATUS_CHECK_COND; 12542 io->scsiio.sense_len = SSD_FULL_SIZE; 12543 io->io_hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 12544 break; 12545 case CTL_LUN_INJ_NONE: 12546 default: 12547 /* 12548 * If this is an error injection type we don't know 12549 * about, clear the continuous flag (if it is set) 12550 * so it will get deleted below. 12551 */ 12552 desc->lun_error &= ~CTL_LUN_INJ_CONTINUOUS; 12553 break; 12554 } 12555 /* 12556 * By default, each error injection action is a one-shot 12557 */ 12558 if (desc->lun_error & CTL_LUN_INJ_CONTINUOUS) 12559 continue; 12560 12561 STAILQ_REMOVE(&lun->error_list, desc, ctl_error_desc, links); 12562 12563 free(desc, M_CTL); 12564 } 12565} 12566 12567#ifdef CTL_IO_DELAY 12568static void 12569ctl_datamove_timer_wakeup(void *arg) 12570{ 12571 union ctl_io *io; 12572 12573 io = (union ctl_io *)arg; 12574 12575 ctl_datamove(io); 12576} 12577#endif /* CTL_IO_DELAY */ 12578 12579void 12580ctl_datamove(union ctl_io *io) 12581{ 12582 struct ctl_lun *lun; 12583 void (*fe_datamove)(union ctl_io *io); 12584 12585 mtx_assert(&control_softc->ctl_lock, MA_NOTOWNED); 12586 12587 CTL_DEBUG_PRINT(("ctl_datamove\n")); 12588 12589 lun = (struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 12590#ifdef CTL_TIME_IO 12591 if ((time_uptime - io->io_hdr.start_time) > ctl_time_io_secs) { 12592 char str[256]; 12593 char path_str[64]; 12594 struct sbuf sb; 12595 12596 ctl_scsi_path_string(io, path_str, sizeof(path_str)); 12597 sbuf_new(&sb, str, sizeof(str), SBUF_FIXEDLEN); 12598 12599 sbuf_cat(&sb, path_str); 12600 switch (io->io_hdr.io_type) { 12601 case CTL_IO_SCSI: 12602 ctl_scsi_command_string(&io->scsiio, NULL, &sb); 12603 sbuf_printf(&sb, "\n"); 12604 sbuf_cat(&sb, path_str); 12605 sbuf_printf(&sb, "Tag: 0x%04x, type %d\n", 12606 io->scsiio.tag_num, io->scsiio.tag_type); 12607 break; 12608 case CTL_IO_TASK: 12609 sbuf_printf(&sb, "Task I/O type: %d, Tag: 0x%04x, " 12610 "Tag Type: %d\n", io->taskio.task_action, 12611 io->taskio.tag_num, io->taskio.tag_type); 12612 break; 12613 default: 12614 panic("%s: Invalid CTL I/O type %d\n", 12615 __func__, io->io_hdr.io_type); 12616 } 12617 sbuf_cat(&sb, path_str); 12618 sbuf_printf(&sb, "ctl_datamove: %jd seconds\n", 12619 (intmax_t)time_uptime - io->io_hdr.start_time); 12620 sbuf_finish(&sb); 12621 printf("%s", sbuf_data(&sb)); 12622 } 12623#endif /* CTL_TIME_IO */ 12624 12625#ifdef CTL_IO_DELAY 12626 if (io->io_hdr.flags & CTL_FLAG_DELAY_DONE) { 12627 io->io_hdr.flags &= ~CTL_FLAG_DELAY_DONE; 12628 } else { 12629 if ((lun != NULL) 12630 && (lun->delay_info.datamove_delay > 0)) { 12631 12632 callout_init(&io->io_hdr.delay_callout, /*mpsafe*/ 1); 12633 io->io_hdr.flags |= CTL_FLAG_DELAY_DONE; 12634 callout_reset(&io->io_hdr.delay_callout, 12635 lun->delay_info.datamove_delay * hz, 12636 ctl_datamove_timer_wakeup, io); 12637 if (lun->delay_info.datamove_type == 12638 CTL_DELAY_TYPE_ONESHOT) 12639 lun->delay_info.datamove_delay = 0; 12640 return; 12641 } 12642 } 12643#endif 12644 12645 /* 12646 * This command has been aborted. Set the port status, so we fail 12647 * the data move. 12648 */ 12649 if (io->io_hdr.flags & CTL_FLAG_ABORT) { 12650 printf("ctl_datamove: tag 0x%04x on (%u:%u:%u) aborted\n", 12651 io->scsiio.tag_num, io->io_hdr.nexus.initid, 12652 io->io_hdr.nexus.targ_port, 12653 io->io_hdr.nexus.targ_lun); 12654 io->io_hdr.port_status = 31337; 12655 /* 12656 * Note that the backend, in this case, will get the 12657 * callback in its context. In other cases it may get 12658 * called in the frontend's interrupt thread context. 12659 */ 12660 io->scsiio.be_move_done(io); 12661 return; 12662 } 12663 12664 /* Don't confuse frontend with zero length data move. */ 12665 if (io->scsiio.kern_data_len == 0) { 12666 io->scsiio.be_move_done(io); 12667 return; 12668 } 12669 12670 fe_datamove = ctl_io_port(&io->io_hdr)->fe_datamove; 12671 fe_datamove(io); 12672} 12673 12674static void 12675ctl_send_datamove_done(union ctl_io *io, int have_lock) 12676{ 12677 union ctl_ha_msg msg; 12678#ifdef CTL_TIME_IO 12679 struct bintime cur_bt; 12680#endif 12681 12682 memset(&msg, 0, sizeof(msg)); 12683 msg.hdr.msg_type = CTL_MSG_DATAMOVE_DONE; 12684 msg.hdr.original_sc = io; 12685 msg.hdr.serializing_sc = io->io_hdr.serializing_sc; 12686 msg.hdr.nexus = io->io_hdr.nexus; 12687 msg.hdr.status = io->io_hdr.status; 12688 msg.scsi.tag_num = io->scsiio.tag_num; 12689 msg.scsi.tag_type = io->scsiio.tag_type; 12690 msg.scsi.scsi_status = io->scsiio.scsi_status; 12691 memcpy(&msg.scsi.sense_data, &io->scsiio.sense_data, 12692 io->scsiio.sense_len); 12693 msg.scsi.sense_len = io->scsiio.sense_len; 12694 msg.scsi.sense_residual = io->scsiio.sense_residual; 12695 msg.scsi.fetd_status = io->io_hdr.port_status; 12696 msg.scsi.residual = io->scsiio.residual; 12697 io->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 12698 if (io->io_hdr.flags & CTL_FLAG_FAILOVER) { 12699 ctl_failover_io(io, /*have_lock*/ have_lock); 12700 return; 12701 } 12702 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, 12703 sizeof(msg.scsi) - sizeof(msg.scsi.sense_data) + 12704 msg.scsi.sense_len, M_WAITOK); 12705 12706#ifdef CTL_TIME_IO 12707 getbinuptime(&cur_bt); 12708 bintime_sub(&cur_bt, &io->io_hdr.dma_start_bt); 12709 bintime_add(&io->io_hdr.dma_bt, &cur_bt); 12710#endif 12711 io->io_hdr.num_dmas++; 12712} 12713 12714/* 12715 * The DMA to the remote side is done, now we need to tell the other side 12716 * we're done so it can continue with its data movement. 12717 */ 12718static void 12719ctl_datamove_remote_write_cb(struct ctl_ha_dt_req *rq) 12720{ 12721 union ctl_io *io; 12722 int i; 12723 12724 io = rq->context; 12725 12726 if (rq->ret != CTL_HA_STATUS_SUCCESS) { 12727 printf("%s: ISC DMA write failed with error %d", __func__, 12728 rq->ret); 12729 ctl_set_internal_failure(&io->scsiio, 12730 /*sks_valid*/ 1, 12731 /*retry_count*/ rq->ret); 12732 } 12733 12734 ctl_dt_req_free(rq); 12735 12736 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 12737 free(io->io_hdr.local_sglist[i].addr, M_CTL); 12738 free(io->io_hdr.remote_sglist, M_CTL); 12739 io->io_hdr.remote_sglist = NULL; 12740 io->io_hdr.local_sglist = NULL; 12741 12742 /* 12743 * The data is in local and remote memory, so now we need to send 12744 * status (good or back) back to the other side. 12745 */ 12746 ctl_send_datamove_done(io, /*have_lock*/ 0); 12747} 12748 12749/* 12750 * We've moved the data from the host/controller into local memory. Now we 12751 * need to push it over to the remote controller's memory. 12752 */ 12753static int 12754ctl_datamove_remote_dm_write_cb(union ctl_io *io) 12755{ 12756 int retval; 12757 12758 retval = ctl_datamove_remote_xfer(io, CTL_HA_DT_CMD_WRITE, 12759 ctl_datamove_remote_write_cb); 12760 return (retval); 12761} 12762 12763static void 12764ctl_datamove_remote_write(union ctl_io *io) 12765{ 12766 int retval; 12767 void (*fe_datamove)(union ctl_io *io); 12768 12769 /* 12770 * - Get the data from the host/HBA into local memory. 12771 * - DMA memory from the local controller to the remote controller. 12772 * - Send status back to the remote controller. 12773 */ 12774 12775 retval = ctl_datamove_remote_sgl_setup(io); 12776 if (retval != 0) 12777 return; 12778 12779 /* Switch the pointer over so the FETD knows what to do */ 12780 io->scsiio.kern_data_ptr = (uint8_t *)io->io_hdr.local_sglist; 12781 12782 /* 12783 * Use a custom move done callback, since we need to send completion 12784 * back to the other controller, not to the backend on this side. 12785 */ 12786 io->scsiio.be_move_done = ctl_datamove_remote_dm_write_cb; 12787 12788 fe_datamove = ctl_io_port(&io->io_hdr)->fe_datamove; 12789 fe_datamove(io); 12790} 12791 12792static int 12793ctl_datamove_remote_dm_read_cb(union ctl_io *io) 12794{ 12795#if 0 12796 char str[256]; 12797 char path_str[64]; 12798 struct sbuf sb; 12799#endif 12800 int i; 12801 12802 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 12803 free(io->io_hdr.local_sglist[i].addr, M_CTL); 12804 free(io->io_hdr.remote_sglist, M_CTL); 12805 io->io_hdr.remote_sglist = NULL; 12806 io->io_hdr.local_sglist = NULL; 12807 12808#if 0 12809 scsi_path_string(io, path_str, sizeof(path_str)); 12810 sbuf_new(&sb, str, sizeof(str), SBUF_FIXEDLEN); 12811 sbuf_cat(&sb, path_str); 12812 scsi_command_string(&io->scsiio, NULL, &sb); 12813 sbuf_printf(&sb, "\n"); 12814 sbuf_cat(&sb, path_str); 12815 sbuf_printf(&sb, "Tag: 0x%04x, type %d\n", 12816 io->scsiio.tag_num, io->scsiio.tag_type); 12817 sbuf_cat(&sb, path_str); 12818 sbuf_printf(&sb, "%s: flags %#x, status %#x\n", __func__, 12819 io->io_hdr.flags, io->io_hdr.status); 12820 sbuf_finish(&sb); 12821 printk("%s", sbuf_data(&sb)); 12822#endif 12823 12824 12825 /* 12826 * The read is done, now we need to send status (good or bad) back 12827 * to the other side. 12828 */ 12829 ctl_send_datamove_done(io, /*have_lock*/ 0); 12830 12831 return (0); 12832} 12833 12834static void 12835ctl_datamove_remote_read_cb(struct ctl_ha_dt_req *rq) 12836{ 12837 union ctl_io *io; 12838 void (*fe_datamove)(union ctl_io *io); 12839 12840 io = rq->context; 12841 12842 if (rq->ret != CTL_HA_STATUS_SUCCESS) { 12843 printf("%s: ISC DMA read failed with error %d\n", __func__, 12844 rq->ret); 12845 ctl_set_internal_failure(&io->scsiio, 12846 /*sks_valid*/ 1, 12847 /*retry_count*/ rq->ret); 12848 } 12849 12850 ctl_dt_req_free(rq); 12851 12852 /* Switch the pointer over so the FETD knows what to do */ 12853 io->scsiio.kern_data_ptr = (uint8_t *)io->io_hdr.local_sglist; 12854 12855 /* 12856 * Use a custom move done callback, since we need to send completion 12857 * back to the other controller, not to the backend on this side. 12858 */ 12859 io->scsiio.be_move_done = ctl_datamove_remote_dm_read_cb; 12860 12861 /* XXX KDM add checks like the ones in ctl_datamove? */ 12862 12863 fe_datamove = ctl_io_port(&io->io_hdr)->fe_datamove; 12864 fe_datamove(io); 12865} 12866 12867static int 12868ctl_datamove_remote_sgl_setup(union ctl_io *io) 12869{ 12870 struct ctl_sg_entry *local_sglist; 12871 uint32_t len_to_go; 12872 int retval; 12873 int i; 12874 12875 retval = 0; 12876 local_sglist = io->io_hdr.local_sglist; 12877 len_to_go = io->scsiio.kern_data_len; 12878 12879 /* 12880 * The difficult thing here is that the size of the various 12881 * S/G segments may be different than the size from the 12882 * remote controller. That'll make it harder when DMAing 12883 * the data back to the other side. 12884 */ 12885 for (i = 0; len_to_go > 0; i++) { 12886 local_sglist[i].len = MIN(len_to_go, CTL_HA_DATAMOVE_SEGMENT); 12887 local_sglist[i].addr = 12888 malloc(local_sglist[i].len, M_CTL, M_WAITOK); 12889 12890 len_to_go -= local_sglist[i].len; 12891 } 12892 /* 12893 * Reset the number of S/G entries accordingly. The original 12894 * number of S/G entries is available in rem_sg_entries. 12895 */ 12896 io->scsiio.kern_sg_entries = i; 12897 12898#if 0 12899 printf("%s: kern_sg_entries = %d\n", __func__, 12900 io->scsiio.kern_sg_entries); 12901 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 12902 printf("%s: sg[%d] = %p, %lu\n", __func__, i, 12903 local_sglist[i].addr, local_sglist[i].len); 12904#endif 12905 12906 return (retval); 12907} 12908 12909static int 12910ctl_datamove_remote_xfer(union ctl_io *io, unsigned command, 12911 ctl_ha_dt_cb callback) 12912{ 12913 struct ctl_ha_dt_req *rq; 12914 struct ctl_sg_entry *remote_sglist, *local_sglist; 12915 uint32_t local_used, remote_used, total_used; 12916 int i, j, isc_ret; 12917 12918 rq = ctl_dt_req_alloc(); 12919 12920 /* 12921 * If we failed to allocate the request, and if the DMA didn't fail 12922 * anyway, set busy status. This is just a resource allocation 12923 * failure. 12924 */ 12925 if ((rq == NULL) 12926 && ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE && 12927 (io->io_hdr.status & CTL_STATUS_MASK) != CTL_SUCCESS)) 12928 ctl_set_busy(&io->scsiio); 12929 12930 if ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE && 12931 (io->io_hdr.status & CTL_STATUS_MASK) != CTL_SUCCESS) { 12932 12933 if (rq != NULL) 12934 ctl_dt_req_free(rq); 12935 12936 /* 12937 * The data move failed. We need to return status back 12938 * to the other controller. No point in trying to DMA 12939 * data to the remote controller. 12940 */ 12941 12942 ctl_send_datamove_done(io, /*have_lock*/ 0); 12943 12944 return (1); 12945 } 12946 12947 local_sglist = io->io_hdr.local_sglist; 12948 remote_sglist = io->io_hdr.remote_sglist; 12949 local_used = 0; 12950 remote_used = 0; 12951 total_used = 0; 12952 12953 /* 12954 * Pull/push the data over the wire from/to the other controller. 12955 * This takes into account the possibility that the local and 12956 * remote sglists may not be identical in terms of the size of 12957 * the elements and the number of elements. 12958 * 12959 * One fundamental assumption here is that the length allocated for 12960 * both the local and remote sglists is identical. Otherwise, we've 12961 * essentially got a coding error of some sort. 12962 */ 12963 isc_ret = CTL_HA_STATUS_SUCCESS; 12964 for (i = 0, j = 0; total_used < io->scsiio.kern_data_len; ) { 12965 uint32_t cur_len; 12966 uint8_t *tmp_ptr; 12967 12968 rq->command = command; 12969 rq->context = io; 12970 12971 /* 12972 * Both pointers should be aligned. But it is possible 12973 * that the allocation length is not. They should both 12974 * also have enough slack left over at the end, though, 12975 * to round up to the next 8 byte boundary. 12976 */ 12977 cur_len = MIN(local_sglist[i].len - local_used, 12978 remote_sglist[j].len - remote_used); 12979 rq->size = cur_len; 12980 12981 tmp_ptr = (uint8_t *)local_sglist[i].addr; 12982 tmp_ptr += local_used; 12983 12984#if 0 12985 /* Use physical addresses when talking to ISC hardware */ 12986 if ((io->io_hdr.flags & CTL_FLAG_BUS_ADDR) == 0) { 12987 /* XXX KDM use busdma */ 12988 rq->local = vtophys(tmp_ptr); 12989 } else 12990 rq->local = tmp_ptr; 12991#else 12992 KASSERT((io->io_hdr.flags & CTL_FLAG_BUS_ADDR) == 0, 12993 ("HA does not support BUS_ADDR")); 12994 rq->local = tmp_ptr; 12995#endif 12996 12997 tmp_ptr = (uint8_t *)remote_sglist[j].addr; 12998 tmp_ptr += remote_used; 12999 rq->remote = tmp_ptr; 13000 13001 rq->callback = NULL; 13002 13003 local_used += cur_len; 13004 if (local_used >= local_sglist[i].len) { 13005 i++; 13006 local_used = 0; 13007 } 13008 13009 remote_used += cur_len; 13010 if (remote_used >= remote_sglist[j].len) { 13011 j++; 13012 remote_used = 0; 13013 } 13014 total_used += cur_len; 13015 13016 if (total_used >= io->scsiio.kern_data_len) 13017 rq->callback = callback; 13018 13019#if 0 13020 printf("%s: %s: local %p remote %p size %d\n", __func__, 13021 (command == CTL_HA_DT_CMD_WRITE) ? "WRITE" : "READ", 13022 rq->local, rq->remote, rq->size); 13023#endif 13024 13025 isc_ret = ctl_dt_single(rq); 13026 if (isc_ret > CTL_HA_STATUS_SUCCESS) 13027 break; 13028 } 13029 if (isc_ret != CTL_HA_STATUS_WAIT) { 13030 rq->ret = isc_ret; 13031 callback(rq); 13032 } 13033 13034 return (0); 13035} 13036 13037static void 13038ctl_datamove_remote_read(union ctl_io *io) 13039{ 13040 int retval; 13041 int i; 13042 13043 /* 13044 * This will send an error to the other controller in the case of a 13045 * failure. 13046 */ 13047 retval = ctl_datamove_remote_sgl_setup(io); 13048 if (retval != 0) 13049 return; 13050 13051 retval = ctl_datamove_remote_xfer(io, CTL_HA_DT_CMD_READ, 13052 ctl_datamove_remote_read_cb); 13053 if (retval != 0) { 13054 /* 13055 * Make sure we free memory if there was an error.. The 13056 * ctl_datamove_remote_xfer() function will send the 13057 * datamove done message, or call the callback with an 13058 * error if there is a problem. 13059 */ 13060 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 13061 free(io->io_hdr.local_sglist[i].addr, M_CTL); 13062 free(io->io_hdr.remote_sglist, M_CTL); 13063 io->io_hdr.remote_sglist = NULL; 13064 io->io_hdr.local_sglist = NULL; 13065 } 13066} 13067 13068/* 13069 * Process a datamove request from the other controller. This is used for 13070 * XFER mode only, not SER_ONLY mode. For writes, we DMA into local memory 13071 * first. Once that is complete, the data gets DMAed into the remote 13072 * controller's memory. For reads, we DMA from the remote controller's 13073 * memory into our memory first, and then move it out to the FETD. 13074 */ 13075static void 13076ctl_datamove_remote(union ctl_io *io) 13077{ 13078 13079 mtx_assert(&control_softc->ctl_lock, MA_NOTOWNED); 13080 13081 if (io->io_hdr.flags & CTL_FLAG_FAILOVER) { 13082 ctl_failover_io(io, /*have_lock*/ 0); 13083 return; 13084 } 13085 13086 /* 13087 * Note that we look for an aborted I/O here, but don't do some of 13088 * the other checks that ctl_datamove() normally does. 13089 * We don't need to run the datamove delay code, since that should 13090 * have been done if need be on the other controller. 13091 */ 13092 if (io->io_hdr.flags & CTL_FLAG_ABORT) { 13093 printf("%s: tag 0x%04x on (%u:%u:%u) aborted\n", __func__, 13094 io->scsiio.tag_num, io->io_hdr.nexus.initid, 13095 io->io_hdr.nexus.targ_port, 13096 io->io_hdr.nexus.targ_lun); 13097 io->io_hdr.port_status = 31338; 13098 ctl_send_datamove_done(io, /*have_lock*/ 0); 13099 return; 13100 } 13101 13102 if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_OUT) 13103 ctl_datamove_remote_write(io); 13104 else if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_IN) 13105 ctl_datamove_remote_read(io); 13106 else { 13107 io->io_hdr.port_status = 31339; 13108 ctl_send_datamove_done(io, /*have_lock*/ 0); 13109 } 13110} 13111 13112static void 13113ctl_process_done(union ctl_io *io) 13114{ 13115 struct ctl_lun *lun; 13116 struct ctl_softc *softc = control_softc; 13117 void (*fe_done)(union ctl_io *io); 13118 union ctl_ha_msg msg; 13119 uint32_t targ_port = io->io_hdr.nexus.targ_port; 13120 13121 CTL_DEBUG_PRINT(("ctl_process_done\n")); 13122 fe_done = softc->ctl_ports[targ_port]->fe_done; 13123 13124#ifdef CTL_TIME_IO 13125 if ((time_uptime - io->io_hdr.start_time) > ctl_time_io_secs) { 13126 char str[256]; 13127 char path_str[64]; 13128 struct sbuf sb; 13129 13130 ctl_scsi_path_string(io, path_str, sizeof(path_str)); 13131 sbuf_new(&sb, str, sizeof(str), SBUF_FIXEDLEN); 13132 13133 sbuf_cat(&sb, path_str); 13134 switch (io->io_hdr.io_type) { 13135 case CTL_IO_SCSI: 13136 ctl_scsi_command_string(&io->scsiio, NULL, &sb); 13137 sbuf_printf(&sb, "\n"); 13138 sbuf_cat(&sb, path_str); 13139 sbuf_printf(&sb, "Tag: 0x%04x, type %d\n", 13140 io->scsiio.tag_num, io->scsiio.tag_type); 13141 break; 13142 case CTL_IO_TASK: 13143 sbuf_printf(&sb, "Task I/O type: %d, Tag: 0x%04x, " 13144 "Tag Type: %d\n", io->taskio.task_action, 13145 io->taskio.tag_num, io->taskio.tag_type); 13146 break; 13147 default: 13148 panic("%s: Invalid CTL I/O type %d\n", 13149 __func__, io->io_hdr.io_type); 13150 } 13151 sbuf_cat(&sb, path_str); 13152 sbuf_printf(&sb, "ctl_process_done: %jd seconds\n", 13153 (intmax_t)time_uptime - io->io_hdr.start_time); 13154 sbuf_finish(&sb); 13155 printf("%s", sbuf_data(&sb)); 13156 } 13157#endif /* CTL_TIME_IO */ 13158 13159 switch (io->io_hdr.io_type) { 13160 case CTL_IO_SCSI: 13161 break; 13162 case CTL_IO_TASK: 13163 if (ctl_debug & CTL_DEBUG_INFO) 13164 ctl_io_error_print(io, NULL); 13165 fe_done(io); 13166 return; 13167 default: 13168 panic("%s: Invalid CTL I/O type %d\n", 13169 __func__, io->io_hdr.io_type); 13170 } 13171 13172 lun = (struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 13173 if (lun == NULL) { 13174 CTL_DEBUG_PRINT(("NULL LUN for lun %d\n", 13175 io->io_hdr.nexus.targ_mapped_lun)); 13176 goto bailout; 13177 } 13178 13179 mtx_lock(&lun->lun_lock); 13180 13181 /* 13182 * Check to see if we have any errors to inject here. We only 13183 * inject errors for commands that don't already have errors set. 13184 */ 13185 if (!STAILQ_EMPTY(&lun->error_list) && 13186 ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS) && 13187 ((io->io_hdr.flags & CTL_FLAG_STATUS_SENT) == 0)) 13188 ctl_inject_error(lun, io); 13189 13190 /* 13191 * XXX KDM how do we treat commands that aren't completed 13192 * successfully? 13193 * 13194 * XXX KDM should we also track I/O latency? 13195 */ 13196 if ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS && 13197 io->io_hdr.io_type == CTL_IO_SCSI) { 13198#ifdef CTL_TIME_IO 13199 struct bintime cur_bt; 13200#endif 13201 int type; 13202 13203 if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == 13204 CTL_FLAG_DATA_IN) 13205 type = CTL_STATS_READ; 13206 else if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == 13207 CTL_FLAG_DATA_OUT) 13208 type = CTL_STATS_WRITE; 13209 else 13210 type = CTL_STATS_NO_IO; 13211 13212 lun->stats.ports[targ_port].bytes[type] += 13213 io->scsiio.kern_total_len; 13214 lun->stats.ports[targ_port].operations[type]++; 13215#ifdef CTL_TIME_IO 13216 bintime_add(&lun->stats.ports[targ_port].dma_time[type], 13217 &io->io_hdr.dma_bt); 13218 getbinuptime(&cur_bt); 13219 bintime_sub(&cur_bt, &io->io_hdr.start_bt); 13220 bintime_add(&lun->stats.ports[targ_port].time[type], &cur_bt); 13221#endif 13222 lun->stats.ports[targ_port].num_dmas[type] += 13223 io->io_hdr.num_dmas; 13224 } 13225 13226 /* 13227 * Remove this from the OOA queue. 13228 */ 13229 TAILQ_REMOVE(&lun->ooa_queue, &io->io_hdr, ooa_links); 13230#ifdef CTL_TIME_IO 13231 if (TAILQ_EMPTY(&lun->ooa_queue)) 13232 lun->last_busy = getsbinuptime(); 13233#endif 13234 13235 /* 13236 * Run through the blocked queue on this LUN and see if anything 13237 * has become unblocked, now that this transaction is done. 13238 */ 13239 ctl_check_blocked(lun); 13240 13241 /* 13242 * If the LUN has been invalidated, free it if there is nothing 13243 * left on its OOA queue. 13244 */ 13245 if ((lun->flags & CTL_LUN_INVALID) 13246 && TAILQ_EMPTY(&lun->ooa_queue)) { 13247 mtx_unlock(&lun->lun_lock); 13248 mtx_lock(&softc->ctl_lock); 13249 ctl_free_lun(lun); 13250 mtx_unlock(&softc->ctl_lock); 13251 } else 13252 mtx_unlock(&lun->lun_lock); 13253 13254bailout: 13255 13256 /* 13257 * If this command has been aborted, make sure we set the status 13258 * properly. The FETD is responsible for freeing the I/O and doing 13259 * whatever it needs to do to clean up its state. 13260 */ 13261 if (io->io_hdr.flags & CTL_FLAG_ABORT) 13262 ctl_set_task_aborted(&io->scsiio); 13263 13264 /* 13265 * If enabled, print command error status. 13266 */ 13267 if ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_SUCCESS && 13268 (ctl_debug & CTL_DEBUG_INFO) != 0) 13269 ctl_io_error_print(io, NULL); 13270 13271 /* 13272 * Tell the FETD or the other shelf controller we're done with this 13273 * command. Note that only SCSI commands get to this point. Task 13274 * management commands are completed above. 13275 */ 13276 if ((softc->ha_mode != CTL_HA_MODE_XFER) && 13277 (io->io_hdr.flags & CTL_FLAG_SENT_2OTHER_SC)) { 13278 memset(&msg, 0, sizeof(msg)); 13279 msg.hdr.msg_type = CTL_MSG_FINISH_IO; 13280 msg.hdr.serializing_sc = io->io_hdr.serializing_sc; 13281 msg.hdr.nexus = io->io_hdr.nexus; 13282 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, 13283 sizeof(msg.scsi) - sizeof(msg.scsi.sense_data), 13284 M_WAITOK); 13285 } 13286 13287 fe_done(io); 13288} 13289 13290#ifdef CTL_WITH_CA 13291/* 13292 * Front end should call this if it doesn't do autosense. When the request 13293 * sense comes back in from the initiator, we'll dequeue this and send it. 13294 */ 13295int 13296ctl_queue_sense(union ctl_io *io) 13297{ 13298 struct ctl_lun *lun; 13299 struct ctl_port *port; 13300 struct ctl_softc *softc; 13301 uint32_t initidx, targ_lun; 13302 13303 softc = control_softc; 13304 13305 CTL_DEBUG_PRINT(("ctl_queue_sense\n")); 13306 13307 /* 13308 * LUN lookup will likely move to the ctl_work_thread() once we 13309 * have our new queueing infrastructure (that doesn't put things on 13310 * a per-LUN queue initially). That is so that we can handle 13311 * things like an INQUIRY to a LUN that we don't have enabled. We 13312 * can't deal with that right now. 13313 */ 13314 mtx_lock(&softc->ctl_lock); 13315 13316 /* 13317 * If we don't have a LUN for this, just toss the sense 13318 * information. 13319 */ 13320 port = ctl_io_port(&ctsio->io_hdr); 13321 targ_lun = ctl_lun_map_from_port(port, io->io_hdr.nexus.targ_lun); 13322 if ((targ_lun < CTL_MAX_LUNS) 13323 && (softc->ctl_luns[targ_lun] != NULL)) 13324 lun = softc->ctl_luns[targ_lun]; 13325 else 13326 goto bailout; 13327 13328 initidx = ctl_get_initindex(&io->io_hdr.nexus); 13329 13330 mtx_lock(&lun->lun_lock); 13331 /* 13332 * Already have CA set for this LUN...toss the sense information. 13333 */ 13334 if (ctl_is_set(lun->have_ca, initidx)) { 13335 mtx_unlock(&lun->lun_lock); 13336 goto bailout; 13337 } 13338 13339 memcpy(&lun->pending_sense[initidx], &io->scsiio.sense_data, 13340 MIN(sizeof(lun->pending_sense[initidx]), 13341 sizeof(io->scsiio.sense_data))); 13342 ctl_set_mask(lun->have_ca, initidx); 13343 mtx_unlock(&lun->lun_lock); 13344 13345bailout: 13346 mtx_unlock(&softc->ctl_lock); 13347 13348 ctl_free_io(io); 13349 13350 return (CTL_RETVAL_COMPLETE); 13351} 13352#endif 13353 13354/* 13355 * Primary command inlet from frontend ports. All SCSI and task I/O 13356 * requests must go through this function. 13357 */ 13358int 13359ctl_queue(union ctl_io *io) 13360{ 13361 struct ctl_port *port; 13362 13363 CTL_DEBUG_PRINT(("ctl_queue cdb[0]=%02X\n", io->scsiio.cdb[0])); 13364 13365#ifdef CTL_TIME_IO 13366 io->io_hdr.start_time = time_uptime; 13367 getbinuptime(&io->io_hdr.start_bt); 13368#endif /* CTL_TIME_IO */ 13369 13370 /* Map FE-specific LUN ID into global one. */ 13371 port = ctl_io_port(&io->io_hdr); 13372 io->io_hdr.nexus.targ_mapped_lun = 13373 ctl_lun_map_from_port(port, io->io_hdr.nexus.targ_lun); 13374 13375 switch (io->io_hdr.io_type) { 13376 case CTL_IO_SCSI: 13377 case CTL_IO_TASK: 13378 if (ctl_debug & CTL_DEBUG_CDB) 13379 ctl_io_print(io); 13380 ctl_enqueue_incoming(io); 13381 break; 13382 default: 13383 printf("ctl_queue: unknown I/O type %d\n", io->io_hdr.io_type); 13384 return (EINVAL); 13385 } 13386 13387 return (CTL_RETVAL_COMPLETE); 13388} 13389 13390#ifdef CTL_IO_DELAY 13391static void 13392ctl_done_timer_wakeup(void *arg) 13393{ 13394 union ctl_io *io; 13395 13396 io = (union ctl_io *)arg; 13397 ctl_done(io); 13398} 13399#endif /* CTL_IO_DELAY */ 13400 13401void 13402ctl_serseq_done(union ctl_io *io) 13403{ 13404 struct ctl_lun *lun; 13405 13406 lun = (struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 13407 if (lun->be_lun == NULL || 13408 lun->be_lun->serseq == CTL_LUN_SERSEQ_OFF) 13409 return; 13410 mtx_lock(&lun->lun_lock); 13411 io->io_hdr.flags |= CTL_FLAG_SERSEQ_DONE; 13412 ctl_check_blocked(lun); 13413 mtx_unlock(&lun->lun_lock); 13414} 13415 13416void 13417ctl_done(union ctl_io *io) 13418{ 13419 13420 /* 13421 * Enable this to catch duplicate completion issues. 13422 */ 13423#if 0 13424 if (io->io_hdr.flags & CTL_FLAG_ALREADY_DONE) { 13425 printf("%s: type %d msg %d cdb %x iptl: " 13426 "%u:%u:%u tag 0x%04x " 13427 "flag %#x status %x\n", 13428 __func__, 13429 io->io_hdr.io_type, 13430 io->io_hdr.msg_type, 13431 io->scsiio.cdb[0], 13432 io->io_hdr.nexus.initid, 13433 io->io_hdr.nexus.targ_port, 13434 io->io_hdr.nexus.targ_lun, 13435 (io->io_hdr.io_type == 13436 CTL_IO_TASK) ? 13437 io->taskio.tag_num : 13438 io->scsiio.tag_num, 13439 io->io_hdr.flags, 13440 io->io_hdr.status); 13441 } else 13442 io->io_hdr.flags |= CTL_FLAG_ALREADY_DONE; 13443#endif 13444 13445 /* 13446 * This is an internal copy of an I/O, and should not go through 13447 * the normal done processing logic. 13448 */ 13449 if (io->io_hdr.flags & CTL_FLAG_INT_COPY) 13450 return; 13451 13452#ifdef CTL_IO_DELAY 13453 if (io->io_hdr.flags & CTL_FLAG_DELAY_DONE) { 13454 struct ctl_lun *lun; 13455 13456 lun =(struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 13457 13458 io->io_hdr.flags &= ~CTL_FLAG_DELAY_DONE; 13459 } else { 13460 struct ctl_lun *lun; 13461 13462 lun =(struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 13463 13464 if ((lun != NULL) 13465 && (lun->delay_info.done_delay > 0)) { 13466 13467 callout_init(&io->io_hdr.delay_callout, /*mpsafe*/ 1); 13468 io->io_hdr.flags |= CTL_FLAG_DELAY_DONE; 13469 callout_reset(&io->io_hdr.delay_callout, 13470 lun->delay_info.done_delay * hz, 13471 ctl_done_timer_wakeup, io); 13472 if (lun->delay_info.done_type == CTL_DELAY_TYPE_ONESHOT) 13473 lun->delay_info.done_delay = 0; 13474 return; 13475 } 13476 } 13477#endif /* CTL_IO_DELAY */ 13478 13479 ctl_enqueue_done(io); 13480} 13481 13482static void 13483ctl_work_thread(void *arg) 13484{ 13485 struct ctl_thread *thr = (struct ctl_thread *)arg; 13486 struct ctl_softc *softc = thr->ctl_softc; 13487 union ctl_io *io; 13488 int retval; 13489 13490 CTL_DEBUG_PRINT(("ctl_work_thread starting\n")); 13491 13492 for (;;) { 13493 /* 13494 * We handle the queues in this order: 13495 * - ISC 13496 * - done queue (to free up resources, unblock other commands) 13497 * - RtR queue 13498 * - incoming queue 13499 * 13500 * If those queues are empty, we break out of the loop and 13501 * go to sleep. 13502 */ 13503 mtx_lock(&thr->queue_lock); 13504 io = (union ctl_io *)STAILQ_FIRST(&thr->isc_queue); 13505 if (io != NULL) { 13506 STAILQ_REMOVE_HEAD(&thr->isc_queue, links); 13507 mtx_unlock(&thr->queue_lock); 13508 ctl_handle_isc(io); 13509 continue; 13510 } 13511 io = (union ctl_io *)STAILQ_FIRST(&thr->done_queue); 13512 if (io != NULL) { 13513 STAILQ_REMOVE_HEAD(&thr->done_queue, links); 13514 /* clear any blocked commands, call fe_done */ 13515 mtx_unlock(&thr->queue_lock); 13516 ctl_process_done(io); 13517 continue; 13518 } 13519 io = (union ctl_io *)STAILQ_FIRST(&thr->incoming_queue); 13520 if (io != NULL) { 13521 STAILQ_REMOVE_HEAD(&thr->incoming_queue, links); 13522 mtx_unlock(&thr->queue_lock); 13523 if (io->io_hdr.io_type == CTL_IO_TASK) 13524 ctl_run_task(io); 13525 else 13526 ctl_scsiio_precheck(softc, &io->scsiio); 13527 continue; 13528 } 13529 io = (union ctl_io *)STAILQ_FIRST(&thr->rtr_queue); 13530 if (io != NULL) { 13531 STAILQ_REMOVE_HEAD(&thr->rtr_queue, links); 13532 mtx_unlock(&thr->queue_lock); 13533 retval = ctl_scsiio(&io->scsiio); 13534 if (retval != CTL_RETVAL_COMPLETE) 13535 CTL_DEBUG_PRINT(("ctl_scsiio failed\n")); 13536 continue; 13537 } 13538 13539 /* Sleep until we have something to do. */ 13540 mtx_sleep(thr, &thr->queue_lock, PDROP | PRIBIO, "-", 0); 13541 } 13542} 13543 13544static void 13545ctl_lun_thread(void *arg) 13546{ 13547 struct ctl_softc *softc = (struct ctl_softc *)arg; 13548 struct ctl_be_lun *be_lun; 13549 13550 CTL_DEBUG_PRINT(("ctl_lun_thread starting\n")); 13551 13552 for (;;) { 13553 mtx_lock(&softc->ctl_lock); 13554 be_lun = STAILQ_FIRST(&softc->pending_lun_queue); 13555 if (be_lun != NULL) { 13556 STAILQ_REMOVE_HEAD(&softc->pending_lun_queue, links); 13557 mtx_unlock(&softc->ctl_lock); 13558 ctl_create_lun(be_lun); 13559 continue; 13560 } 13561 13562 /* Sleep until we have something to do. */ 13563 mtx_sleep(&softc->pending_lun_queue, &softc->ctl_lock, 13564 PDROP | PRIBIO, "-", 0); 13565 } 13566} 13567 13568static void 13569ctl_thresh_thread(void *arg) 13570{ 13571 struct ctl_softc *softc = (struct ctl_softc *)arg; 13572 struct ctl_lun *lun; 13573 struct scsi_da_rw_recovery_page *rwpage; 13574 struct ctl_logical_block_provisioning_page *page; 13575 const char *attr; 13576 union ctl_ha_msg msg; 13577 uint64_t thres, val; 13578 int i, e, set; 13579 13580 CTL_DEBUG_PRINT(("ctl_thresh_thread starting\n")); 13581 13582 for (;;) { 13583 mtx_lock(&softc->ctl_lock); 13584 STAILQ_FOREACH(lun, &softc->lun_list, links) { 13585 if ((lun->flags & CTL_LUN_DISABLED) || 13586 (lun->flags & CTL_LUN_NO_MEDIA) || 13587 lun->backend->lun_attr == NULL) 13588 continue; 13589 if ((lun->flags & CTL_LUN_PRIMARY_SC) == 0 && 13590 softc->ha_mode == CTL_HA_MODE_XFER) 13591 continue; 13592 rwpage = &lun->mode_pages.rw_er_page[CTL_PAGE_CURRENT]; 13593 if ((rwpage->byte8 & SMS_RWER_LBPERE) == 0) 13594 continue; 13595 e = 0; 13596 page = &lun->mode_pages.lbp_page[CTL_PAGE_CURRENT]; 13597 for (i = 0; i < CTL_NUM_LBP_THRESH; i++) { 13598 if ((page->descr[i].flags & SLBPPD_ENABLED) == 0) 13599 continue; 13600 thres = scsi_4btoul(page->descr[i].count); 13601 thres <<= CTL_LBP_EXPONENT; 13602 switch (page->descr[i].resource) { 13603 case 0x01: 13604 attr = "blocksavail"; 13605 break; 13606 case 0x02: 13607 attr = "blocksused"; 13608 break; 13609 case 0xf1: 13610 attr = "poolblocksavail"; 13611 break; 13612 case 0xf2: 13613 attr = "poolblocksused"; 13614 break; 13615 default: 13616 continue; 13617 } 13618 mtx_unlock(&softc->ctl_lock); // XXX 13619 val = lun->backend->lun_attr( 13620 lun->be_lun->be_lun, attr); 13621 mtx_lock(&softc->ctl_lock); 13622 if (val == UINT64_MAX) 13623 continue; 13624 if ((page->descr[i].flags & SLBPPD_ARMING_MASK) 13625 == SLBPPD_ARMING_INC) 13626 e = (val >= thres); 13627 else 13628 e = (val <= thres); 13629 if (e) 13630 break; 13631 } 13632 mtx_lock(&lun->lun_lock); 13633 if (e) { 13634 scsi_u64to8b((uint8_t *)&page->descr[i] - 13635 (uint8_t *)page, lun->ua_tpt_info); 13636 if (lun->lasttpt == 0 || 13637 time_uptime - lun->lasttpt >= CTL_LBP_UA_PERIOD) { 13638 lun->lasttpt = time_uptime; 13639 ctl_est_ua_all(lun, -1, CTL_UA_THIN_PROV_THRES); 13640 set = 1; 13641 } else 13642 set = 0; 13643 } else { 13644 lun->lasttpt = 0; 13645 ctl_clr_ua_all(lun, -1, CTL_UA_THIN_PROV_THRES); 13646 set = -1; 13647 } 13648 mtx_unlock(&lun->lun_lock); 13649 if (set != 0 && 13650 lun->ctl_softc->ha_mode == CTL_HA_MODE_XFER) { 13651 /* Send msg to other side. */ 13652 bzero(&msg.ua, sizeof(msg.ua)); 13653 msg.hdr.msg_type = CTL_MSG_UA; 13654 msg.hdr.nexus.initid = -1; 13655 msg.hdr.nexus.targ_port = -1; 13656 msg.hdr.nexus.targ_lun = lun->lun; 13657 msg.hdr.nexus.targ_mapped_lun = lun->lun; 13658 msg.ua.ua_all = 1; 13659 msg.ua.ua_set = (set > 0); 13660 msg.ua.ua_type = CTL_UA_THIN_PROV_THRES; 13661 memcpy(msg.ua.ua_info, lun->ua_tpt_info, 8); 13662 mtx_unlock(&softc->ctl_lock); // XXX 13663 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, 13664 sizeof(msg.ua), M_WAITOK); 13665 mtx_lock(&softc->ctl_lock); 13666 } 13667 } 13668 mtx_unlock(&softc->ctl_lock); 13669 pause("-", CTL_LBP_PERIOD * hz); 13670 } 13671} 13672 13673static void 13674ctl_enqueue_incoming(union ctl_io *io) 13675{ 13676 struct ctl_softc *softc = control_softc; 13677 struct ctl_thread *thr; 13678 u_int idx; 13679 13680 idx = (io->io_hdr.nexus.targ_port * 127 + 13681 io->io_hdr.nexus.initid) % worker_threads; 13682 thr = &softc->threads[idx]; 13683 mtx_lock(&thr->queue_lock); 13684 STAILQ_INSERT_TAIL(&thr->incoming_queue, &io->io_hdr, links); 13685 mtx_unlock(&thr->queue_lock); 13686 wakeup(thr); 13687} 13688 13689static void 13690ctl_enqueue_rtr(union ctl_io *io) 13691{ 13692 struct ctl_softc *softc = control_softc; 13693 struct ctl_thread *thr; 13694 13695 thr = &softc->threads[io->io_hdr.nexus.targ_mapped_lun % worker_threads]; 13696 mtx_lock(&thr->queue_lock); 13697 STAILQ_INSERT_TAIL(&thr->rtr_queue, &io->io_hdr, links); 13698 mtx_unlock(&thr->queue_lock); 13699 wakeup(thr); 13700} 13701 13702static void 13703ctl_enqueue_done(union ctl_io *io) 13704{ 13705 struct ctl_softc *softc = control_softc; 13706 struct ctl_thread *thr; 13707 13708 thr = &softc->threads[io->io_hdr.nexus.targ_mapped_lun % worker_threads]; 13709 mtx_lock(&thr->queue_lock); 13710 STAILQ_INSERT_TAIL(&thr->done_queue, &io->io_hdr, links); 13711 mtx_unlock(&thr->queue_lock); 13712 wakeup(thr); 13713} 13714 13715static void 13716ctl_enqueue_isc(union ctl_io *io) 13717{ 13718 struct ctl_softc *softc = control_softc; 13719 struct ctl_thread *thr; 13720 13721 thr = &softc->threads[io->io_hdr.nexus.targ_mapped_lun % worker_threads]; 13722 mtx_lock(&thr->queue_lock); 13723 STAILQ_INSERT_TAIL(&thr->isc_queue, &io->io_hdr, links); 13724 mtx_unlock(&thr->queue_lock); 13725 wakeup(thr); 13726} 13727 13728/* 13729 * vim: ts=8 13730 */ 13731