ctl.c revision 288795
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 288795 2015-10-05 10:58:41Z 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_da.h> 73#include <cam/ctl/ctl_io.h> 74#include <cam/ctl/ctl.h> 75#include <cam/ctl/ctl_frontend.h> 76#include <cam/ctl/ctl_util.h> 77#include <cam/ctl/ctl_backend.h> 78#include <cam/ctl/ctl_ioctl.h> 79#include <cam/ctl/ctl_ha.h> 80#include <cam/ctl/ctl_private.h> 81#include <cam/ctl/ctl_debug.h> 82#include <cam/ctl/ctl_scsi_all.h> 83#include <cam/ctl/ctl_error.h> 84 85struct ctl_softc *control_softc = NULL; 86 87/* 88 * Template mode pages. 89 */ 90 91/* 92 * Note that these are default values only. The actual values will be 93 * filled in when the user does a mode sense. 94 */ 95const static struct copan_debugconf_subpage debugconf_page_default = { 96 DBGCNF_PAGE_CODE | SMPH_SPF, /* page_code */ 97 DBGCNF_SUBPAGE_CODE, /* subpage */ 98 {(sizeof(struct copan_debugconf_subpage) - 4) >> 8, 99 (sizeof(struct copan_debugconf_subpage) - 4) >> 0}, /* page_length */ 100 DBGCNF_VERSION, /* page_version */ 101 {CTL_TIME_IO_DEFAULT_SECS>>8, 102 CTL_TIME_IO_DEFAULT_SECS>>0}, /* ctl_time_io_secs */ 103}; 104 105const static struct copan_debugconf_subpage debugconf_page_changeable = { 106 DBGCNF_PAGE_CODE | SMPH_SPF, /* page_code */ 107 DBGCNF_SUBPAGE_CODE, /* subpage */ 108 {(sizeof(struct copan_debugconf_subpage) - 4) >> 8, 109 (sizeof(struct copan_debugconf_subpage) - 4) >> 0}, /* page_length */ 110 0, /* page_version */ 111 {0xff,0xff}, /* ctl_time_io_secs */ 112}; 113 114const static struct scsi_da_rw_recovery_page rw_er_page_default = { 115 /*page_code*/SMS_RW_ERROR_RECOVERY_PAGE, 116 /*page_length*/sizeof(struct scsi_da_rw_recovery_page) - 2, 117 /*byte3*/SMS_RWER_AWRE|SMS_RWER_ARRE, 118 /*read_retry_count*/0, 119 /*correction_span*/0, 120 /*head_offset_count*/0, 121 /*data_strobe_offset_cnt*/0, 122 /*byte8*/SMS_RWER_LBPERE, 123 /*write_retry_count*/0, 124 /*reserved2*/0, 125 /*recovery_time_limit*/{0, 0}, 126}; 127 128const static struct scsi_da_rw_recovery_page rw_er_page_changeable = { 129 /*page_code*/SMS_RW_ERROR_RECOVERY_PAGE, 130 /*page_length*/sizeof(struct scsi_da_rw_recovery_page) - 2, 131 /*byte3*/0, 132 /*read_retry_count*/0, 133 /*correction_span*/0, 134 /*head_offset_count*/0, 135 /*data_strobe_offset_cnt*/0, 136 /*byte8*/0, 137 /*write_retry_count*/0, 138 /*reserved2*/0, 139 /*recovery_time_limit*/{0, 0}, 140}; 141 142const static struct scsi_format_page format_page_default = { 143 /*page_code*/SMS_FORMAT_DEVICE_PAGE, 144 /*page_length*/sizeof(struct scsi_format_page) - 2, 145 /*tracks_per_zone*/ {0, 0}, 146 /*alt_sectors_per_zone*/ {0, 0}, 147 /*alt_tracks_per_zone*/ {0, 0}, 148 /*alt_tracks_per_lun*/ {0, 0}, 149 /*sectors_per_track*/ {(CTL_DEFAULT_SECTORS_PER_TRACK >> 8) & 0xff, 150 CTL_DEFAULT_SECTORS_PER_TRACK & 0xff}, 151 /*bytes_per_sector*/ {0, 0}, 152 /*interleave*/ {0, 0}, 153 /*track_skew*/ {0, 0}, 154 /*cylinder_skew*/ {0, 0}, 155 /*flags*/ SFP_HSEC, 156 /*reserved*/ {0, 0, 0} 157}; 158 159const static struct scsi_format_page format_page_changeable = { 160 /*page_code*/SMS_FORMAT_DEVICE_PAGE, 161 /*page_length*/sizeof(struct scsi_format_page) - 2, 162 /*tracks_per_zone*/ {0, 0}, 163 /*alt_sectors_per_zone*/ {0, 0}, 164 /*alt_tracks_per_zone*/ {0, 0}, 165 /*alt_tracks_per_lun*/ {0, 0}, 166 /*sectors_per_track*/ {0, 0}, 167 /*bytes_per_sector*/ {0, 0}, 168 /*interleave*/ {0, 0}, 169 /*track_skew*/ {0, 0}, 170 /*cylinder_skew*/ {0, 0}, 171 /*flags*/ 0, 172 /*reserved*/ {0, 0, 0} 173}; 174 175const static struct scsi_rigid_disk_page rigid_disk_page_default = { 176 /*page_code*/SMS_RIGID_DISK_PAGE, 177 /*page_length*/sizeof(struct scsi_rigid_disk_page) - 2, 178 /*cylinders*/ {0, 0, 0}, 179 /*heads*/ CTL_DEFAULT_HEADS, 180 /*start_write_precomp*/ {0, 0, 0}, 181 /*start_reduced_current*/ {0, 0, 0}, 182 /*step_rate*/ {0, 0}, 183 /*landing_zone_cylinder*/ {0, 0, 0}, 184 /*rpl*/ SRDP_RPL_DISABLED, 185 /*rotational_offset*/ 0, 186 /*reserved1*/ 0, 187 /*rotation_rate*/ {(CTL_DEFAULT_ROTATION_RATE >> 8) & 0xff, 188 CTL_DEFAULT_ROTATION_RATE & 0xff}, 189 /*reserved2*/ {0, 0} 190}; 191 192const static struct scsi_rigid_disk_page rigid_disk_page_changeable = { 193 /*page_code*/SMS_RIGID_DISK_PAGE, 194 /*page_length*/sizeof(struct scsi_rigid_disk_page) - 2, 195 /*cylinders*/ {0, 0, 0}, 196 /*heads*/ 0, 197 /*start_write_precomp*/ {0, 0, 0}, 198 /*start_reduced_current*/ {0, 0, 0}, 199 /*step_rate*/ {0, 0}, 200 /*landing_zone_cylinder*/ {0, 0, 0}, 201 /*rpl*/ 0, 202 /*rotational_offset*/ 0, 203 /*reserved1*/ 0, 204 /*rotation_rate*/ {0, 0}, 205 /*reserved2*/ {0, 0} 206}; 207 208const static struct scsi_caching_page caching_page_default = { 209 /*page_code*/SMS_CACHING_PAGE, 210 /*page_length*/sizeof(struct scsi_caching_page) - 2, 211 /*flags1*/ SCP_DISC | SCP_WCE, 212 /*ret_priority*/ 0, 213 /*disable_pf_transfer_len*/ {0xff, 0xff}, 214 /*min_prefetch*/ {0, 0}, 215 /*max_prefetch*/ {0xff, 0xff}, 216 /*max_pf_ceiling*/ {0xff, 0xff}, 217 /*flags2*/ 0, 218 /*cache_segments*/ 0, 219 /*cache_seg_size*/ {0, 0}, 220 /*reserved*/ 0, 221 /*non_cache_seg_size*/ {0, 0, 0} 222}; 223 224const static struct scsi_caching_page caching_page_changeable = { 225 /*page_code*/SMS_CACHING_PAGE, 226 /*page_length*/sizeof(struct scsi_caching_page) - 2, 227 /*flags1*/ SCP_WCE | SCP_RCD, 228 /*ret_priority*/ 0, 229 /*disable_pf_transfer_len*/ {0, 0}, 230 /*min_prefetch*/ {0, 0}, 231 /*max_prefetch*/ {0, 0}, 232 /*max_pf_ceiling*/ {0, 0}, 233 /*flags2*/ 0, 234 /*cache_segments*/ 0, 235 /*cache_seg_size*/ {0, 0}, 236 /*reserved*/ 0, 237 /*non_cache_seg_size*/ {0, 0, 0} 238}; 239 240const static struct scsi_control_page control_page_default = { 241 /*page_code*/SMS_CONTROL_MODE_PAGE, 242 /*page_length*/sizeof(struct scsi_control_page) - 2, 243 /*rlec*/0, 244 /*queue_flags*/SCP_QUEUE_ALG_RESTRICTED, 245 /*eca_and_aen*/0, 246 /*flags4*/SCP_TAS, 247 /*aen_holdoff_period*/{0, 0}, 248 /*busy_timeout_period*/{0, 0}, 249 /*extended_selftest_completion_time*/{0, 0} 250}; 251 252const static struct scsi_control_page control_page_changeable = { 253 /*page_code*/SMS_CONTROL_MODE_PAGE, 254 /*page_length*/sizeof(struct scsi_control_page) - 2, 255 /*rlec*/SCP_DSENSE, 256 /*queue_flags*/SCP_QUEUE_ALG_MASK, 257 /*eca_and_aen*/SCP_SWP, 258 /*flags4*/0, 259 /*aen_holdoff_period*/{0, 0}, 260 /*busy_timeout_period*/{0, 0}, 261 /*extended_selftest_completion_time*/{0, 0} 262}; 263 264#define CTL_CEM_LEN (sizeof(struct scsi_control_ext_page) - 4) 265 266const static struct scsi_control_ext_page control_ext_page_default = { 267 /*page_code*/SMS_CONTROL_MODE_PAGE | SMPH_SPF, 268 /*subpage_code*/0x01, 269 /*page_length*/{CTL_CEM_LEN >> 8, CTL_CEM_LEN}, 270 /*flags*/0, 271 /*prio*/0, 272 /*max_sense*/0 273}; 274 275const static struct scsi_control_ext_page control_ext_page_changeable = { 276 /*page_code*/SMS_CONTROL_MODE_PAGE | SMPH_SPF, 277 /*subpage_code*/0x01, 278 /*page_length*/{CTL_CEM_LEN >> 8, CTL_CEM_LEN}, 279 /*flags*/0, 280 /*prio*/0, 281 /*max_sense*/0 282}; 283 284const static struct scsi_info_exceptions_page ie_page_default = { 285 /*page_code*/SMS_INFO_EXCEPTIONS_PAGE, 286 /*page_length*/sizeof(struct scsi_info_exceptions_page) - 2, 287 /*info_flags*/SIEP_FLAGS_DEXCPT, 288 /*mrie*/0, 289 /*interval_timer*/{0, 0, 0, 0}, 290 /*report_count*/{0, 0, 0, 0} 291}; 292 293const static struct scsi_info_exceptions_page ie_page_changeable = { 294 /*page_code*/SMS_INFO_EXCEPTIONS_PAGE, 295 /*page_length*/sizeof(struct scsi_info_exceptions_page) - 2, 296 /*info_flags*/0, 297 /*mrie*/0, 298 /*interval_timer*/{0, 0, 0, 0}, 299 /*report_count*/{0, 0, 0, 0} 300}; 301 302#define CTL_LBPM_LEN (sizeof(struct ctl_logical_block_provisioning_page) - 4) 303 304const static struct ctl_logical_block_provisioning_page lbp_page_default = {{ 305 /*page_code*/SMS_INFO_EXCEPTIONS_PAGE | SMPH_SPF, 306 /*subpage_code*/0x02, 307 /*page_length*/{CTL_LBPM_LEN >> 8, CTL_LBPM_LEN}, 308 /*flags*/0, 309 /*reserved*/{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}, 310 /*descr*/{}}, 311 {{/*flags*/0, 312 /*resource*/0x01, 313 /*reserved*/{0, 0}, 314 /*count*/{0, 0, 0, 0}}, 315 {/*flags*/0, 316 /*resource*/0x02, 317 /*reserved*/{0, 0}, 318 /*count*/{0, 0, 0, 0}}, 319 {/*flags*/0, 320 /*resource*/0xf1, 321 /*reserved*/{0, 0}, 322 /*count*/{0, 0, 0, 0}}, 323 {/*flags*/0, 324 /*resource*/0xf2, 325 /*reserved*/{0, 0}, 326 /*count*/{0, 0, 0, 0}} 327 } 328}; 329 330const static struct ctl_logical_block_provisioning_page lbp_page_changeable = {{ 331 /*page_code*/SMS_INFO_EXCEPTIONS_PAGE | SMPH_SPF, 332 /*subpage_code*/0x02, 333 /*page_length*/{CTL_LBPM_LEN >> 8, CTL_LBPM_LEN}, 334 /*flags*/0, 335 /*reserved*/{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}, 336 /*descr*/{}}, 337 {{/*flags*/0, 338 /*resource*/0, 339 /*reserved*/{0, 0}, 340 /*count*/{0, 0, 0, 0}}, 341 {/*flags*/0, 342 /*resource*/0, 343 /*reserved*/{0, 0}, 344 /*count*/{0, 0, 0, 0}}, 345 {/*flags*/0, 346 /*resource*/0, 347 /*reserved*/{0, 0}, 348 /*count*/{0, 0, 0, 0}}, 349 {/*flags*/0, 350 /*resource*/0, 351 /*reserved*/{0, 0}, 352 /*count*/{0, 0, 0, 0}} 353 } 354}; 355 356SYSCTL_NODE(_kern_cam, OID_AUTO, ctl, CTLFLAG_RD, 0, "CAM Target Layer"); 357static int worker_threads = -1; 358TUNABLE_INT("kern.cam.ctl.worker_threads", &worker_threads); 359SYSCTL_INT(_kern_cam_ctl, OID_AUTO, worker_threads, CTLFLAG_RDTUN, 360 &worker_threads, 1, "Number of worker threads"); 361static int ctl_debug = CTL_DEBUG_NONE; 362TUNABLE_INT("kern.cam.ctl.debug", &ctl_debug); 363SYSCTL_INT(_kern_cam_ctl, OID_AUTO, debug, CTLFLAG_RWTUN, 364 &ctl_debug, 0, "Enabled debug flags"); 365 366/* 367 * Supported pages (0x00), Serial number (0x80), Device ID (0x83), 368 * Extended INQUIRY Data (0x86), Mode Page Policy (0x87), 369 * SCSI Ports (0x88), Third-party Copy (0x8F), Block limits (0xB0), 370 * Block Device Characteristics (0xB1) and Logical Block Provisioning (0xB2) 371 */ 372#define SCSI_EVPD_NUM_SUPPORTED_PAGES 10 373 374static void ctl_isc_event_handler(ctl_ha_channel chanel, ctl_ha_event event, 375 int param); 376static void ctl_copy_sense_data(union ctl_ha_msg *src, union ctl_io *dest); 377static void ctl_copy_sense_data_back(union ctl_io *src, union ctl_ha_msg *dest); 378static int ctl_init(void); 379void ctl_shutdown(void); 380static int ctl_open(struct cdev *dev, int flags, int fmt, struct thread *td); 381static int ctl_close(struct cdev *dev, int flags, int fmt, struct thread *td); 382static int ctl_serialize_other_sc_cmd(struct ctl_scsiio *ctsio); 383static int ctl_ioctl_fill_ooa(struct ctl_lun *lun, uint32_t *cur_fill_num, 384 struct ctl_ooa *ooa_hdr, 385 struct ctl_ooa_entry *kern_entries); 386static int ctl_ioctl(struct cdev *dev, u_long cmd, caddr_t addr, int flag, 387 struct thread *td); 388static int ctl_alloc_lun(struct ctl_softc *ctl_softc, struct ctl_lun *lun, 389 struct ctl_be_lun *be_lun); 390static int ctl_free_lun(struct ctl_lun *lun); 391static void ctl_create_lun(struct ctl_be_lun *be_lun); 392static struct ctl_port * ctl_io_port(struct ctl_io_hdr *io_hdr); 393 394static int ctl_do_mode_select(union ctl_io *io); 395static int ctl_pro_preempt(struct ctl_softc *softc, struct ctl_lun *lun, 396 uint64_t res_key, uint64_t sa_res_key, 397 uint8_t type, uint32_t residx, 398 struct ctl_scsiio *ctsio, 399 struct scsi_per_res_out *cdb, 400 struct scsi_per_res_out_parms* param); 401static void ctl_pro_preempt_other(struct ctl_lun *lun, 402 union ctl_ha_msg *msg); 403static void ctl_hndl_per_res_out_on_other_sc(union ctl_ha_msg *msg); 404static int ctl_inquiry_evpd_supported(struct ctl_scsiio *ctsio, int alloc_len); 405static int ctl_inquiry_evpd_serial(struct ctl_scsiio *ctsio, int alloc_len); 406static int ctl_inquiry_evpd_devid(struct ctl_scsiio *ctsio, int alloc_len); 407static int ctl_inquiry_evpd_eid(struct ctl_scsiio *ctsio, int alloc_len); 408static int ctl_inquiry_evpd_mpp(struct ctl_scsiio *ctsio, int alloc_len); 409static int ctl_inquiry_evpd_scsi_ports(struct ctl_scsiio *ctsio, 410 int alloc_len); 411static int ctl_inquiry_evpd_block_limits(struct ctl_scsiio *ctsio, 412 int alloc_len); 413static int ctl_inquiry_evpd_bdc(struct ctl_scsiio *ctsio, int alloc_len); 414static int ctl_inquiry_evpd_lbp(struct ctl_scsiio *ctsio, int alloc_len); 415static int ctl_inquiry_evpd(struct ctl_scsiio *ctsio); 416static int ctl_inquiry_std(struct ctl_scsiio *ctsio); 417static int ctl_get_lba_len(union ctl_io *io, uint64_t *lba, uint64_t *len); 418static ctl_action ctl_extent_check(union ctl_io *io1, union ctl_io *io2, 419 bool seq); 420static ctl_action ctl_extent_check_seq(union ctl_io *io1, union ctl_io *io2); 421static ctl_action ctl_check_for_blockage(struct ctl_lun *lun, 422 union ctl_io *pending_io, union ctl_io *ooa_io); 423static ctl_action ctl_check_ooa(struct ctl_lun *lun, union ctl_io *pending_io, 424 union ctl_io *starting_io); 425static int ctl_check_blocked(struct ctl_lun *lun); 426static int ctl_scsiio_lun_check(struct ctl_lun *lun, 427 const struct ctl_cmd_entry *entry, 428 struct ctl_scsiio *ctsio); 429static void ctl_failover_lun(struct ctl_lun *lun); 430static int ctl_scsiio_precheck(struct ctl_softc *ctl_softc, 431 struct ctl_scsiio *ctsio); 432static int ctl_scsiio(struct ctl_scsiio *ctsio); 433 434static int ctl_bus_reset(struct ctl_softc *ctl_softc, union ctl_io *io); 435static int ctl_target_reset(struct ctl_softc *ctl_softc, union ctl_io *io, 436 ctl_ua_type ua_type); 437static int ctl_do_lun_reset(struct ctl_lun *lun, union ctl_io *io, 438 ctl_ua_type ua_type); 439static int ctl_lun_reset(struct ctl_softc *ctl_softc, union ctl_io *io); 440static int ctl_abort_task(union ctl_io *io); 441static int ctl_abort_task_set(union ctl_io *io); 442static int ctl_query_task(union ctl_io *io, int task_set); 443static int ctl_i_t_nexus_reset(union ctl_io *io); 444static int ctl_query_async_event(union ctl_io *io); 445static void ctl_run_task(union ctl_io *io); 446#ifdef CTL_IO_DELAY 447static void ctl_datamove_timer_wakeup(void *arg); 448static void ctl_done_timer_wakeup(void *arg); 449#endif /* CTL_IO_DELAY */ 450 451static void ctl_send_datamove_done(union ctl_io *io, int have_lock); 452static void ctl_datamove_remote_write_cb(struct ctl_ha_dt_req *rq); 453static int ctl_datamove_remote_dm_write_cb(union ctl_io *io); 454static void ctl_datamove_remote_write(union ctl_io *io); 455static int ctl_datamove_remote_dm_read_cb(union ctl_io *io); 456static void ctl_datamove_remote_read_cb(struct ctl_ha_dt_req *rq); 457static int ctl_datamove_remote_sgl_setup(union ctl_io *io); 458static int ctl_datamove_remote_xfer(union ctl_io *io, unsigned command, 459 ctl_ha_dt_cb callback); 460static void ctl_datamove_remote_read(union ctl_io *io); 461static void ctl_datamove_remote(union ctl_io *io); 462static int ctl_process_done(union ctl_io *io); 463static void ctl_lun_thread(void *arg); 464static void ctl_thresh_thread(void *arg); 465static void ctl_work_thread(void *arg); 466static void ctl_enqueue_incoming(union ctl_io *io); 467static void ctl_enqueue_rtr(union ctl_io *io); 468static void ctl_enqueue_done(union ctl_io *io); 469static void ctl_enqueue_isc(union ctl_io *io); 470static const struct ctl_cmd_entry * 471 ctl_get_cmd_entry(struct ctl_scsiio *ctsio, int *sa); 472static const struct ctl_cmd_entry * 473 ctl_validate_command(struct ctl_scsiio *ctsio); 474static int ctl_cmd_applicable(uint8_t lun_type, 475 const struct ctl_cmd_entry *entry); 476 477static uint64_t ctl_get_prkey(struct ctl_lun *lun, uint32_t residx); 478static void ctl_clr_prkey(struct ctl_lun *lun, uint32_t residx); 479static void ctl_alloc_prkey(struct ctl_lun *lun, uint32_t residx); 480static void ctl_set_prkey(struct ctl_lun *lun, uint32_t residx, uint64_t key); 481 482/* 483 * Load the serialization table. This isn't very pretty, but is probably 484 * the easiest way to do it. 485 */ 486#include "ctl_ser_table.c" 487 488/* 489 * We only need to define open, close and ioctl routines for this driver. 490 */ 491static struct cdevsw ctl_cdevsw = { 492 .d_version = D_VERSION, 493 .d_flags = 0, 494 .d_open = ctl_open, 495 .d_close = ctl_close, 496 .d_ioctl = ctl_ioctl, 497 .d_name = "ctl", 498}; 499 500 501MALLOC_DEFINE(M_CTL, "ctlmem", "Memory used for CTL"); 502 503static int ctl_module_event_handler(module_t, int /*modeventtype_t*/, void *); 504 505static moduledata_t ctl_moduledata = { 506 "ctl", 507 ctl_module_event_handler, 508 NULL 509}; 510 511DECLARE_MODULE(ctl, ctl_moduledata, SI_SUB_CONFIGURE, SI_ORDER_THIRD); 512MODULE_VERSION(ctl, 1); 513 514static struct ctl_frontend ha_frontend = 515{ 516 .name = "ha", 517}; 518 519static void 520ctl_isc_handler_finish_xfer(struct ctl_softc *ctl_softc, 521 union ctl_ha_msg *msg_info) 522{ 523 struct ctl_scsiio *ctsio; 524 525 if (msg_info->hdr.original_sc == NULL) { 526 printf("%s: original_sc == NULL!\n", __func__); 527 /* XXX KDM now what? */ 528 return; 529 } 530 531 ctsio = &msg_info->hdr.original_sc->scsiio; 532 ctsio->io_hdr.flags |= CTL_FLAG_IO_ACTIVE; 533 ctsio->io_hdr.msg_type = CTL_MSG_FINISH_IO; 534 ctsio->io_hdr.status = msg_info->hdr.status; 535 ctsio->scsi_status = msg_info->scsi.scsi_status; 536 ctsio->sense_len = msg_info->scsi.sense_len; 537 ctsio->sense_residual = msg_info->scsi.sense_residual; 538 ctsio->residual = msg_info->scsi.residual; 539 memcpy(&ctsio->sense_data, &msg_info->scsi.sense_data, 540 msg_info->scsi.sense_len); 541 ctl_enqueue_isc((union ctl_io *)ctsio); 542} 543 544static void 545ctl_isc_handler_finish_ser_only(struct ctl_softc *ctl_softc, 546 union ctl_ha_msg *msg_info) 547{ 548 struct ctl_scsiio *ctsio; 549 550 if (msg_info->hdr.serializing_sc == NULL) { 551 printf("%s: serializing_sc == NULL!\n", __func__); 552 /* XXX KDM now what? */ 553 return; 554 } 555 556 ctsio = &msg_info->hdr.serializing_sc->scsiio; 557 ctsio->io_hdr.msg_type = CTL_MSG_FINISH_IO; 558 ctl_enqueue_isc((union ctl_io *)ctsio); 559} 560 561void 562ctl_isc_announce_lun(struct ctl_lun *lun) 563{ 564 struct ctl_softc *softc = lun->ctl_softc; 565 union ctl_ha_msg *msg; 566 struct ctl_ha_msg_lun_pr_key pr_key; 567 int i, k; 568 569 if (softc->ha_link != CTL_HA_LINK_ONLINE) 570 return; 571 mtx_lock(&lun->lun_lock); 572 i = sizeof(msg->lun); 573 if (lun->lun_devid) 574 i += lun->lun_devid->len; 575 i += sizeof(pr_key) * lun->pr_key_count; 576alloc: 577 mtx_unlock(&lun->lun_lock); 578 msg = malloc(i, M_CTL, M_WAITOK); 579 mtx_lock(&lun->lun_lock); 580 k = sizeof(msg->lun); 581 if (lun->lun_devid) 582 k += lun->lun_devid->len; 583 k += sizeof(pr_key) * lun->pr_key_count; 584 if (i < k) { 585 free(msg, M_CTL); 586 i = k; 587 goto alloc; 588 } 589 bzero(&msg->lun, sizeof(msg->lun)); 590 msg->hdr.msg_type = CTL_MSG_LUN_SYNC; 591 msg->hdr.nexus.targ_lun = lun->lun; 592 msg->hdr.nexus.targ_mapped_lun = lun->lun; 593 msg->lun.flags = lun->flags; 594 msg->lun.pr_generation = lun->PRGeneration; 595 msg->lun.pr_res_idx = lun->pr_res_idx; 596 msg->lun.pr_res_type = lun->res_type; 597 msg->lun.pr_key_count = lun->pr_key_count; 598 i = 0; 599 if (lun->lun_devid) { 600 msg->lun.lun_devid_len = lun->lun_devid->len; 601 memcpy(&msg->lun.data[i], lun->lun_devid->data, 602 msg->lun.lun_devid_len); 603 i += msg->lun.lun_devid_len; 604 } 605 for (k = 0; k < CTL_MAX_INITIATORS; k++) { 606 if ((pr_key.pr_key = ctl_get_prkey(lun, k)) == 0) 607 continue; 608 pr_key.pr_iid = k; 609 memcpy(&msg->lun.data[i], &pr_key, sizeof(pr_key)); 610 i += sizeof(pr_key); 611 } 612 mtx_unlock(&lun->lun_lock); 613 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg->port, sizeof(msg->port) + i, 614 M_WAITOK); 615 free(msg, M_CTL); 616 617 if (lun->flags & CTL_LUN_PRIMARY_SC) { 618 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 619 ctl_isc_announce_mode(lun, -1, 620 lun->mode_pages.index[i].page_code & SMPH_PC_MASK, 621 lun->mode_pages.index[i].subpage); 622 } 623 } 624} 625 626void 627ctl_isc_announce_port(struct ctl_port *port) 628{ 629 struct ctl_softc *softc = port->ctl_softc; 630 union ctl_ha_msg *msg; 631 int i; 632 633 if (port->targ_port < softc->port_min || 634 port->targ_port >= softc->port_max || 635 softc->ha_link != CTL_HA_LINK_ONLINE) 636 return; 637 i = sizeof(msg->port) + strlen(port->port_name) + 1; 638 if (port->lun_map) 639 i += sizeof(uint32_t) * CTL_MAX_LUNS; 640 if (port->port_devid) 641 i += port->port_devid->len; 642 if (port->target_devid) 643 i += port->target_devid->len; 644 if (port->init_devid) 645 i += port->init_devid->len; 646 msg = malloc(i, M_CTL, M_WAITOK); 647 bzero(&msg->port, sizeof(msg->port)); 648 msg->hdr.msg_type = CTL_MSG_PORT_SYNC; 649 msg->hdr.nexus.targ_port = port->targ_port; 650 msg->port.port_type = port->port_type; 651 msg->port.physical_port = port->physical_port; 652 msg->port.virtual_port = port->virtual_port; 653 msg->port.status = port->status; 654 i = 0; 655 msg->port.name_len = sprintf(&msg->port.data[i], 656 "%d:%s", softc->ha_id, port->port_name) + 1; 657 i += msg->port.name_len; 658 if (port->lun_map) { 659 msg->port.lun_map_len = sizeof(uint32_t) * CTL_MAX_LUNS; 660 memcpy(&msg->port.data[i], port->lun_map, 661 msg->port.lun_map_len); 662 i += msg->port.lun_map_len; 663 } 664 if (port->port_devid) { 665 msg->port.port_devid_len = port->port_devid->len; 666 memcpy(&msg->port.data[i], port->port_devid->data, 667 msg->port.port_devid_len); 668 i += msg->port.port_devid_len; 669 } 670 if (port->target_devid) { 671 msg->port.target_devid_len = port->target_devid->len; 672 memcpy(&msg->port.data[i], port->target_devid->data, 673 msg->port.target_devid_len); 674 i += msg->port.target_devid_len; 675 } 676 if (port->init_devid) { 677 msg->port.init_devid_len = port->init_devid->len; 678 memcpy(&msg->port.data[i], port->init_devid->data, 679 msg->port.init_devid_len); 680 i += msg->port.init_devid_len; 681 } 682 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg->port, sizeof(msg->port) + i, 683 M_WAITOK); 684 free(msg, M_CTL); 685} 686 687void 688ctl_isc_announce_iid(struct ctl_port *port, int iid) 689{ 690 struct ctl_softc *softc = port->ctl_softc; 691 union ctl_ha_msg *msg; 692 int i, l; 693 694 if (port->targ_port < softc->port_min || 695 port->targ_port >= softc->port_max || 696 softc->ha_link != CTL_HA_LINK_ONLINE) 697 return; 698 mtx_lock(&softc->ctl_lock); 699 i = sizeof(msg->iid); 700 l = 0; 701 if (port->wwpn_iid[iid].name) 702 l = strlen(port->wwpn_iid[iid].name) + 1; 703 i += l; 704 msg = malloc(i, M_CTL, M_NOWAIT); 705 if (msg == NULL) { 706 mtx_unlock(&softc->ctl_lock); 707 return; 708 } 709 bzero(&msg->iid, sizeof(msg->iid)); 710 msg->hdr.msg_type = CTL_MSG_IID_SYNC; 711 msg->hdr.nexus.targ_port = port->targ_port; 712 msg->hdr.nexus.initid = iid; 713 msg->iid.in_use = port->wwpn_iid[iid].in_use; 714 msg->iid.name_len = l; 715 msg->iid.wwpn = port->wwpn_iid[iid].wwpn; 716 if (port->wwpn_iid[iid].name) 717 strlcpy(msg->iid.data, port->wwpn_iid[iid].name, l); 718 mtx_unlock(&softc->ctl_lock); 719 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg->iid, i, M_NOWAIT); 720 free(msg, M_CTL); 721} 722 723void 724ctl_isc_announce_mode(struct ctl_lun *lun, uint32_t initidx, 725 uint8_t page, uint8_t subpage) 726{ 727 struct ctl_softc *softc = lun->ctl_softc; 728 union ctl_ha_msg msg; 729 int i; 730 731 if (softc->ha_link != CTL_HA_LINK_ONLINE) 732 return; 733 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 734 if ((lun->mode_pages.index[i].page_code & SMPH_PC_MASK) == 735 page && lun->mode_pages.index[i].subpage == subpage) 736 break; 737 } 738 if (i == CTL_NUM_MODE_PAGES) 739 return; 740 bzero(&msg.mode, sizeof(msg.mode)); 741 msg.hdr.msg_type = CTL_MSG_MODE_SYNC; 742 msg.hdr.nexus.targ_port = initidx / CTL_MAX_INIT_PER_PORT; 743 msg.hdr.nexus.initid = initidx % CTL_MAX_INIT_PER_PORT; 744 msg.hdr.nexus.targ_lun = lun->lun; 745 msg.hdr.nexus.targ_mapped_lun = lun->lun; 746 msg.mode.page_code = page; 747 msg.mode.subpage = subpage; 748 msg.mode.page_len = lun->mode_pages.index[i].page_len; 749 memcpy(msg.mode.data, lun->mode_pages.index[i].page_data, 750 msg.mode.page_len); 751 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg.mode, sizeof(msg.mode), 752 M_WAITOK); 753} 754 755static void 756ctl_isc_ha_link_up(struct ctl_softc *softc) 757{ 758 struct ctl_port *port; 759 struct ctl_lun *lun; 760 union ctl_ha_msg msg; 761 int i; 762 763 /* Announce this node parameters to peer for validation. */ 764 msg.login.msg_type = CTL_MSG_LOGIN; 765 msg.login.version = CTL_HA_VERSION; 766 msg.login.ha_mode = softc->ha_mode; 767 msg.login.ha_id = softc->ha_id; 768 msg.login.max_luns = CTL_MAX_LUNS; 769 msg.login.max_ports = CTL_MAX_PORTS; 770 msg.login.max_init_per_port = CTL_MAX_INIT_PER_PORT; 771 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg.login, sizeof(msg.login), 772 M_WAITOK); 773 774 STAILQ_FOREACH(port, &softc->port_list, links) { 775 ctl_isc_announce_port(port); 776 for (i = 0; i < CTL_MAX_INIT_PER_PORT; i++) { 777 if (port->wwpn_iid[i].in_use) 778 ctl_isc_announce_iid(port, i); 779 } 780 } 781 STAILQ_FOREACH(lun, &softc->lun_list, links) 782 ctl_isc_announce_lun(lun); 783} 784 785static void 786ctl_isc_ha_link_down(struct ctl_softc *softc) 787{ 788 struct ctl_port *port; 789 struct ctl_lun *lun; 790 union ctl_io *io; 791 int i; 792 793 mtx_lock(&softc->ctl_lock); 794 STAILQ_FOREACH(lun, &softc->lun_list, links) { 795 mtx_lock(&lun->lun_lock); 796 if (lun->flags & CTL_LUN_PEER_SC_PRIMARY) { 797 lun->flags &= ~CTL_LUN_PEER_SC_PRIMARY; 798 ctl_est_ua_all(lun, -1, CTL_UA_ASYM_ACC_CHANGE); 799 } 800 mtx_unlock(&lun->lun_lock); 801 802 mtx_unlock(&softc->ctl_lock); 803 io = ctl_alloc_io(softc->othersc_pool); 804 mtx_lock(&softc->ctl_lock); 805 ctl_zero_io(io); 806 io->io_hdr.msg_type = CTL_MSG_FAILOVER; 807 io->io_hdr.nexus.targ_mapped_lun = lun->lun; 808 ctl_enqueue_isc(io); 809 } 810 811 STAILQ_FOREACH(port, &softc->port_list, links) { 812 if (port->targ_port >= softc->port_min && 813 port->targ_port < softc->port_max) 814 continue; 815 port->status &= ~CTL_PORT_STATUS_ONLINE; 816 for (i = 0; i < CTL_MAX_INIT_PER_PORT; i++) { 817 port->wwpn_iid[i].in_use = 0; 818 free(port->wwpn_iid[i].name, M_CTL); 819 port->wwpn_iid[i].name = NULL; 820 } 821 } 822 mtx_unlock(&softc->ctl_lock); 823} 824 825static void 826ctl_isc_ua(struct ctl_softc *softc, union ctl_ha_msg *msg, int len) 827{ 828 struct ctl_lun *lun; 829 uint32_t iid = ctl_get_initindex(&msg->hdr.nexus); 830 831 mtx_lock(&softc->ctl_lock); 832 if (msg->hdr.nexus.targ_lun < CTL_MAX_LUNS && 833 (lun = softc->ctl_luns[msg->hdr.nexus.targ_mapped_lun]) != NULL) { 834 mtx_lock(&lun->lun_lock); 835 mtx_unlock(&softc->ctl_lock); 836 if (msg->ua.ua_type == CTL_UA_THIN_PROV_THRES && 837 msg->ua.ua_set) 838 memcpy(lun->ua_tpt_info, msg->ua.ua_info, 8); 839 if (msg->ua.ua_all) { 840 if (msg->ua.ua_set) 841 ctl_est_ua_all(lun, iid, msg->ua.ua_type); 842 else 843 ctl_clr_ua_all(lun, iid, msg->ua.ua_type); 844 } else { 845 if (msg->ua.ua_set) 846 ctl_est_ua(lun, iid, msg->ua.ua_type); 847 else 848 ctl_clr_ua(lun, iid, msg->ua.ua_type); 849 } 850 mtx_unlock(&lun->lun_lock); 851 } else 852 mtx_unlock(&softc->ctl_lock); 853} 854 855static void 856ctl_isc_lun_sync(struct ctl_softc *softc, union ctl_ha_msg *msg, int len) 857{ 858 struct ctl_lun *lun; 859 struct ctl_ha_msg_lun_pr_key pr_key; 860 int i, k; 861 ctl_lun_flags oflags; 862 uint32_t targ_lun; 863 864 targ_lun = msg->hdr.nexus.targ_mapped_lun; 865 mtx_lock(&softc->ctl_lock); 866 if ((targ_lun >= CTL_MAX_LUNS) || 867 ((lun = softc->ctl_luns[targ_lun]) == NULL)) { 868 mtx_unlock(&softc->ctl_lock); 869 return; 870 } 871 mtx_lock(&lun->lun_lock); 872 mtx_unlock(&softc->ctl_lock); 873 if (lun->flags & CTL_LUN_DISABLED) { 874 mtx_unlock(&lun->lun_lock); 875 return; 876 } 877 i = (lun->lun_devid != NULL) ? lun->lun_devid->len : 0; 878 if (msg->lun.lun_devid_len != i || (i > 0 && 879 memcmp(&msg->lun.data[0], lun->lun_devid->data, i) != 0)) { 880 mtx_unlock(&lun->lun_lock); 881 printf("%s: Received conflicting HA LUN %d\n", 882 __func__, msg->hdr.nexus.targ_lun); 883 return; 884 } else { 885 /* Record whether peer is primary. */ 886 oflags = lun->flags; 887 if ((msg->lun.flags & CTL_LUN_PRIMARY_SC) && 888 (msg->lun.flags & CTL_LUN_DISABLED) == 0) 889 lun->flags |= CTL_LUN_PEER_SC_PRIMARY; 890 else 891 lun->flags &= ~CTL_LUN_PEER_SC_PRIMARY; 892 if (oflags != lun->flags) 893 ctl_est_ua_all(lun, -1, CTL_UA_ASYM_ACC_CHANGE); 894 895 /* If peer is primary and we are not -- use data */ 896 if ((lun->flags & CTL_LUN_PRIMARY_SC) == 0 && 897 (lun->flags & CTL_LUN_PEER_SC_PRIMARY)) { 898 lun->PRGeneration = msg->lun.pr_generation; 899 lun->pr_res_idx = msg->lun.pr_res_idx; 900 lun->res_type = msg->lun.pr_res_type; 901 lun->pr_key_count = msg->lun.pr_key_count; 902 for (k = 0; k < CTL_MAX_INITIATORS; k++) 903 ctl_clr_prkey(lun, k); 904 for (k = 0; k < msg->lun.pr_key_count; k++) { 905 memcpy(&pr_key, &msg->lun.data[i], 906 sizeof(pr_key)); 907 ctl_alloc_prkey(lun, pr_key.pr_iid); 908 ctl_set_prkey(lun, pr_key.pr_iid, 909 pr_key.pr_key); 910 i += sizeof(pr_key); 911 } 912 } 913 914 mtx_unlock(&lun->lun_lock); 915 CTL_DEBUG_PRINT(("%s: Known LUN %d, peer is %s\n", 916 __func__, msg->hdr.nexus.targ_lun, 917 (msg->lun.flags & CTL_LUN_PRIMARY_SC) ? 918 "primary" : "secondary")); 919 920 /* If we are primary but peer doesn't know -- notify */ 921 if ((lun->flags & CTL_LUN_PRIMARY_SC) && 922 (msg->lun.flags & CTL_LUN_PEER_SC_PRIMARY) == 0) 923 ctl_isc_announce_lun(lun); 924 } 925} 926 927static void 928ctl_isc_port_sync(struct ctl_softc *softc, union ctl_ha_msg *msg, int len) 929{ 930 struct ctl_port *port; 931 struct ctl_lun *lun; 932 int i, new; 933 934 port = softc->ctl_ports[msg->hdr.nexus.targ_port]; 935 if (port == NULL) { 936 CTL_DEBUG_PRINT(("%s: New port %d\n", __func__, 937 msg->hdr.nexus.targ_port)); 938 new = 1; 939 port = malloc(sizeof(*port), M_CTL, M_WAITOK | M_ZERO); 940 port->frontend = &ha_frontend; 941 port->targ_port = msg->hdr.nexus.targ_port; 942 } else if (port->frontend == &ha_frontend) { 943 CTL_DEBUG_PRINT(("%s: Updated port %d\n", __func__, 944 msg->hdr.nexus.targ_port)); 945 new = 0; 946 } else { 947 printf("%s: Received conflicting HA port %d\n", 948 __func__, msg->hdr.nexus.targ_port); 949 return; 950 } 951 port->port_type = msg->port.port_type; 952 port->physical_port = msg->port.physical_port; 953 port->virtual_port = msg->port.virtual_port; 954 port->status = msg->port.status; 955 i = 0; 956 free(port->port_name, M_CTL); 957 port->port_name = strndup(&msg->port.data[i], msg->port.name_len, 958 M_CTL); 959 i += msg->port.name_len; 960 if (msg->port.lun_map_len != 0) { 961 if (port->lun_map == NULL) 962 port->lun_map = malloc(sizeof(uint32_t) * CTL_MAX_LUNS, 963 M_CTL, M_WAITOK); 964 memcpy(port->lun_map, &msg->port.data[i], 965 sizeof(uint32_t) * CTL_MAX_LUNS); 966 i += msg->port.lun_map_len; 967 } else { 968 free(port->lun_map, M_CTL); 969 port->lun_map = NULL; 970 } 971 if (msg->port.port_devid_len != 0) { 972 if (port->port_devid == NULL || 973 port->port_devid->len != msg->port.port_devid_len) { 974 free(port->port_devid, M_CTL); 975 port->port_devid = malloc(sizeof(struct ctl_devid) + 976 msg->port.port_devid_len, M_CTL, M_WAITOK); 977 } 978 memcpy(port->port_devid->data, &msg->port.data[i], 979 msg->port.port_devid_len); 980 port->port_devid->len = msg->port.port_devid_len; 981 i += msg->port.port_devid_len; 982 } else { 983 free(port->port_devid, M_CTL); 984 port->port_devid = NULL; 985 } 986 if (msg->port.target_devid_len != 0) { 987 if (port->target_devid == NULL || 988 port->target_devid->len != msg->port.target_devid_len) { 989 free(port->target_devid, M_CTL); 990 port->target_devid = malloc(sizeof(struct ctl_devid) + 991 msg->port.target_devid_len, M_CTL, M_WAITOK); 992 } 993 memcpy(port->target_devid->data, &msg->port.data[i], 994 msg->port.target_devid_len); 995 port->target_devid->len = msg->port.target_devid_len; 996 i += msg->port.target_devid_len; 997 } else { 998 free(port->target_devid, M_CTL); 999 port->target_devid = NULL; 1000 } 1001 if (msg->port.init_devid_len != 0) { 1002 if (port->init_devid == NULL || 1003 port->init_devid->len != msg->port.init_devid_len) { 1004 free(port->init_devid, M_CTL); 1005 port->init_devid = malloc(sizeof(struct ctl_devid) + 1006 msg->port.init_devid_len, M_CTL, M_WAITOK); 1007 } 1008 memcpy(port->init_devid->data, &msg->port.data[i], 1009 msg->port.init_devid_len); 1010 port->init_devid->len = msg->port.init_devid_len; 1011 i += msg->port.init_devid_len; 1012 } else { 1013 free(port->init_devid, M_CTL); 1014 port->init_devid = NULL; 1015 } 1016 if (new) { 1017 if (ctl_port_register(port) != 0) { 1018 printf("%s: ctl_port_register() failed with error\n", 1019 __func__); 1020 } 1021 } 1022 mtx_lock(&softc->ctl_lock); 1023 STAILQ_FOREACH(lun, &softc->lun_list, links) { 1024 if (ctl_lun_map_to_port(port, lun->lun) >= CTL_MAX_LUNS) 1025 continue; 1026 mtx_lock(&lun->lun_lock); 1027 ctl_est_ua_all(lun, -1, CTL_UA_INQ_CHANGE); 1028 mtx_unlock(&lun->lun_lock); 1029 } 1030 mtx_unlock(&softc->ctl_lock); 1031} 1032 1033static void 1034ctl_isc_iid_sync(struct ctl_softc *softc, union ctl_ha_msg *msg, int len) 1035{ 1036 struct ctl_port *port; 1037 int iid; 1038 1039 port = softc->ctl_ports[msg->hdr.nexus.targ_port]; 1040 if (port == NULL) { 1041 printf("%s: Received IID for unknown port %d\n", 1042 __func__, msg->hdr.nexus.targ_port); 1043 return; 1044 } 1045 iid = msg->hdr.nexus.initid; 1046 port->wwpn_iid[iid].in_use = msg->iid.in_use; 1047 port->wwpn_iid[iid].wwpn = msg->iid.wwpn; 1048 free(port->wwpn_iid[iid].name, M_CTL); 1049 if (msg->iid.name_len) { 1050 port->wwpn_iid[iid].name = strndup(&msg->iid.data[0], 1051 msg->iid.name_len, M_CTL); 1052 } else 1053 port->wwpn_iid[iid].name = NULL; 1054} 1055 1056static void 1057ctl_isc_login(struct ctl_softc *softc, union ctl_ha_msg *msg, int len) 1058{ 1059 1060 if (msg->login.version != CTL_HA_VERSION) { 1061 printf("CTL HA peers have different versions %d != %d\n", 1062 msg->login.version, CTL_HA_VERSION); 1063 ctl_ha_msg_abort(CTL_HA_CHAN_CTL); 1064 return; 1065 } 1066 if (msg->login.ha_mode != softc->ha_mode) { 1067 printf("CTL HA peers have different ha_mode %d != %d\n", 1068 msg->login.ha_mode, softc->ha_mode); 1069 ctl_ha_msg_abort(CTL_HA_CHAN_CTL); 1070 return; 1071 } 1072 if (msg->login.ha_id == softc->ha_id) { 1073 printf("CTL HA peers have same ha_id %d\n", msg->login.ha_id); 1074 ctl_ha_msg_abort(CTL_HA_CHAN_CTL); 1075 return; 1076 } 1077 if (msg->login.max_luns != CTL_MAX_LUNS || 1078 msg->login.max_ports != CTL_MAX_PORTS || 1079 msg->login.max_init_per_port != CTL_MAX_INIT_PER_PORT) { 1080 printf("CTL HA peers have different limits\n"); 1081 ctl_ha_msg_abort(CTL_HA_CHAN_CTL); 1082 return; 1083 } 1084} 1085 1086static void 1087ctl_isc_mode_sync(struct ctl_softc *softc, union ctl_ha_msg *msg, int len) 1088{ 1089 struct ctl_lun *lun; 1090 int i; 1091 uint32_t initidx, targ_lun; 1092 1093 targ_lun = msg->hdr.nexus.targ_mapped_lun; 1094 mtx_lock(&softc->ctl_lock); 1095 if ((targ_lun >= CTL_MAX_LUNS) || 1096 ((lun = softc->ctl_luns[targ_lun]) == NULL)) { 1097 mtx_unlock(&softc->ctl_lock); 1098 return; 1099 } 1100 mtx_lock(&lun->lun_lock); 1101 mtx_unlock(&softc->ctl_lock); 1102 if (lun->flags & CTL_LUN_DISABLED) { 1103 mtx_unlock(&lun->lun_lock); 1104 return; 1105 } 1106 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 1107 if ((lun->mode_pages.index[i].page_code & SMPH_PC_MASK) == 1108 msg->mode.page_code && 1109 lun->mode_pages.index[i].subpage == msg->mode.subpage) 1110 break; 1111 } 1112 if (i == CTL_NUM_MODE_PAGES) { 1113 mtx_unlock(&lun->lun_lock); 1114 return; 1115 } 1116 memcpy(lun->mode_pages.index[i].page_data, msg->mode.data, 1117 lun->mode_pages.index[i].page_len); 1118 initidx = ctl_get_initindex(&msg->hdr.nexus); 1119 if (initidx != -1) 1120 ctl_est_ua_all(lun, initidx, CTL_UA_MODE_CHANGE); 1121 mtx_unlock(&lun->lun_lock); 1122} 1123 1124/* 1125 * ISC (Inter Shelf Communication) event handler. Events from the HA 1126 * subsystem come in here. 1127 */ 1128static void 1129ctl_isc_event_handler(ctl_ha_channel channel, ctl_ha_event event, int param) 1130{ 1131 struct ctl_softc *softc = control_softc; 1132 union ctl_io *io; 1133 struct ctl_prio *presio; 1134 ctl_ha_status isc_status; 1135 1136 CTL_DEBUG_PRINT(("CTL: Isc Msg event %d\n", event)); 1137 if (event == CTL_HA_EVT_MSG_RECV) { 1138 union ctl_ha_msg *msg, msgbuf; 1139 1140 if (param > sizeof(msgbuf)) 1141 msg = malloc(param, M_CTL, M_WAITOK); 1142 else 1143 msg = &msgbuf; 1144 isc_status = ctl_ha_msg_recv(CTL_HA_CHAN_CTL, msg, param, 1145 M_WAITOK); 1146 if (isc_status != CTL_HA_STATUS_SUCCESS) { 1147 printf("%s: Error receiving message: %d\n", 1148 __func__, isc_status); 1149 if (msg != &msgbuf) 1150 free(msg, M_CTL); 1151 return; 1152 } 1153 1154 CTL_DEBUG_PRINT(("CTL: msg_type %d\n", msg->msg_type)); 1155 switch (msg->hdr.msg_type) { 1156 case CTL_MSG_SERIALIZE: 1157 io = ctl_alloc_io(softc->othersc_pool); 1158 ctl_zero_io(io); 1159 // populate ctsio from msg 1160 io->io_hdr.io_type = CTL_IO_SCSI; 1161 io->io_hdr.msg_type = CTL_MSG_SERIALIZE; 1162 io->io_hdr.original_sc = msg->hdr.original_sc; 1163 io->io_hdr.flags |= CTL_FLAG_FROM_OTHER_SC | 1164 CTL_FLAG_IO_ACTIVE; 1165 /* 1166 * If we're in serialization-only mode, we don't 1167 * want to go through full done processing. Thus 1168 * the COPY flag. 1169 * 1170 * XXX KDM add another flag that is more specific. 1171 */ 1172 if (softc->ha_mode != CTL_HA_MODE_XFER) 1173 io->io_hdr.flags |= CTL_FLAG_INT_COPY; 1174 io->io_hdr.nexus = msg->hdr.nexus; 1175#if 0 1176 printf("port %u, iid %u, lun %u\n", 1177 io->io_hdr.nexus.targ_port, 1178 io->io_hdr.nexus.initid, 1179 io->io_hdr.nexus.targ_lun); 1180#endif 1181 io->scsiio.tag_num = msg->scsi.tag_num; 1182 io->scsiio.tag_type = msg->scsi.tag_type; 1183#ifdef CTL_TIME_IO 1184 io->io_hdr.start_time = time_uptime; 1185 getbintime(&io->io_hdr.start_bt); 1186#endif /* CTL_TIME_IO */ 1187 io->scsiio.cdb_len = msg->scsi.cdb_len; 1188 memcpy(io->scsiio.cdb, msg->scsi.cdb, 1189 CTL_MAX_CDBLEN); 1190 if (softc->ha_mode == CTL_HA_MODE_XFER) { 1191 const struct ctl_cmd_entry *entry; 1192 1193 entry = ctl_get_cmd_entry(&io->scsiio, NULL); 1194 io->io_hdr.flags &= ~CTL_FLAG_DATA_MASK; 1195 io->io_hdr.flags |= 1196 entry->flags & CTL_FLAG_DATA_MASK; 1197 } 1198 ctl_enqueue_isc(io); 1199 break; 1200 1201 /* Performed on the Originating SC, XFER mode only */ 1202 case CTL_MSG_DATAMOVE: { 1203 struct ctl_sg_entry *sgl; 1204 int i, j; 1205 1206 io = msg->hdr.original_sc; 1207 if (io == NULL) { 1208 printf("%s: original_sc == NULL!\n", __func__); 1209 /* XXX KDM do something here */ 1210 break; 1211 } 1212 io->io_hdr.msg_type = CTL_MSG_DATAMOVE; 1213 io->io_hdr.flags |= CTL_FLAG_IO_ACTIVE; 1214 /* 1215 * Keep track of this, we need to send it back over 1216 * when the datamove is complete. 1217 */ 1218 io->io_hdr.serializing_sc = msg->hdr.serializing_sc; 1219 if (msg->hdr.status == CTL_SUCCESS) 1220 io->io_hdr.status = msg->hdr.status; 1221 1222 if (msg->dt.sg_sequence == 0) { 1223 i = msg->dt.kern_sg_entries + 1224 msg->dt.kern_data_len / 1225 CTL_HA_DATAMOVE_SEGMENT + 1; 1226 sgl = malloc(sizeof(*sgl) * i, M_CTL, 1227 M_WAITOK | M_ZERO); 1228 io->io_hdr.remote_sglist = sgl; 1229 io->io_hdr.local_sglist = 1230 &sgl[msg->dt.kern_sg_entries]; 1231 1232 io->scsiio.kern_data_ptr = (uint8_t *)sgl; 1233 1234 io->scsiio.kern_sg_entries = 1235 msg->dt.kern_sg_entries; 1236 io->scsiio.rem_sg_entries = 1237 msg->dt.kern_sg_entries; 1238 io->scsiio.kern_data_len = 1239 msg->dt.kern_data_len; 1240 io->scsiio.kern_total_len = 1241 msg->dt.kern_total_len; 1242 io->scsiio.kern_data_resid = 1243 msg->dt.kern_data_resid; 1244 io->scsiio.kern_rel_offset = 1245 msg->dt.kern_rel_offset; 1246 io->io_hdr.flags &= ~CTL_FLAG_BUS_ADDR; 1247 io->io_hdr.flags |= msg->dt.flags & 1248 CTL_FLAG_BUS_ADDR; 1249 } else 1250 sgl = (struct ctl_sg_entry *) 1251 io->scsiio.kern_data_ptr; 1252 1253 for (i = msg->dt.sent_sg_entries, j = 0; 1254 i < (msg->dt.sent_sg_entries + 1255 msg->dt.cur_sg_entries); i++, j++) { 1256 sgl[i].addr = msg->dt.sg_list[j].addr; 1257 sgl[i].len = msg->dt.sg_list[j].len; 1258 1259#if 0 1260 printf("%s: DATAMOVE: %p,%lu j=%d, i=%d\n", 1261 __func__, sgl[i].addr, sgl[i].len, j, i); 1262#endif 1263 } 1264 1265 /* 1266 * If this is the last piece of the I/O, we've got 1267 * the full S/G list. Queue processing in the thread. 1268 * Otherwise wait for the next piece. 1269 */ 1270 if (msg->dt.sg_last != 0) 1271 ctl_enqueue_isc(io); 1272 break; 1273 } 1274 /* Performed on the Serializing (primary) SC, XFER mode only */ 1275 case CTL_MSG_DATAMOVE_DONE: { 1276 if (msg->hdr.serializing_sc == NULL) { 1277 printf("%s: serializing_sc == NULL!\n", 1278 __func__); 1279 /* XXX KDM now what? */ 1280 break; 1281 } 1282 /* 1283 * We grab the sense information here in case 1284 * there was a failure, so we can return status 1285 * back to the initiator. 1286 */ 1287 io = msg->hdr.serializing_sc; 1288 io->io_hdr.msg_type = CTL_MSG_DATAMOVE_DONE; 1289 io->io_hdr.flags &= ~CTL_FLAG_DMA_INPROG; 1290 io->io_hdr.flags |= CTL_FLAG_IO_ACTIVE; 1291 io->io_hdr.port_status = msg->scsi.fetd_status; 1292 io->scsiio.residual = msg->scsi.residual; 1293 if (msg->hdr.status != CTL_STATUS_NONE) { 1294 io->io_hdr.status = msg->hdr.status; 1295 io->scsiio.scsi_status = msg->scsi.scsi_status; 1296 io->scsiio.sense_len = msg->scsi.sense_len; 1297 io->scsiio.sense_residual =msg->scsi.sense_residual; 1298 memcpy(&io->scsiio.sense_data, 1299 &msg->scsi.sense_data, 1300 msg->scsi.sense_len); 1301 if (msg->hdr.status == CTL_SUCCESS) 1302 io->io_hdr.flags |= CTL_FLAG_STATUS_SENT; 1303 } 1304 ctl_enqueue_isc(io); 1305 break; 1306 } 1307 1308 /* Preformed on Originating SC, SER_ONLY mode */ 1309 case CTL_MSG_R2R: 1310 io = msg->hdr.original_sc; 1311 if (io == NULL) { 1312 printf("%s: original_sc == NULL!\n", 1313 __func__); 1314 break; 1315 } 1316 io->io_hdr.flags |= CTL_FLAG_IO_ACTIVE; 1317 io->io_hdr.msg_type = CTL_MSG_R2R; 1318 io->io_hdr.serializing_sc = msg->hdr.serializing_sc; 1319 ctl_enqueue_isc(io); 1320 break; 1321 1322 /* 1323 * Performed on Serializing(i.e. primary SC) SC in SER_ONLY 1324 * mode. 1325 * Performed on the Originating (i.e. secondary) SC in XFER 1326 * mode 1327 */ 1328 case CTL_MSG_FINISH_IO: 1329 if (softc->ha_mode == CTL_HA_MODE_XFER) 1330 ctl_isc_handler_finish_xfer(softc, msg); 1331 else 1332 ctl_isc_handler_finish_ser_only(softc, msg); 1333 break; 1334 1335 /* Preformed on Originating SC */ 1336 case CTL_MSG_BAD_JUJU: 1337 io = msg->hdr.original_sc; 1338 if (io == NULL) { 1339 printf("%s: Bad JUJU!, original_sc is NULL!\n", 1340 __func__); 1341 break; 1342 } 1343 ctl_copy_sense_data(msg, io); 1344 /* 1345 * IO should have already been cleaned up on other 1346 * SC so clear this flag so we won't send a message 1347 * back to finish the IO there. 1348 */ 1349 io->io_hdr.flags &= ~CTL_FLAG_SENT_2OTHER_SC; 1350 io->io_hdr.flags |= CTL_FLAG_IO_ACTIVE; 1351 1352 /* io = msg->hdr.serializing_sc; */ 1353 io->io_hdr.msg_type = CTL_MSG_BAD_JUJU; 1354 ctl_enqueue_isc(io); 1355 break; 1356 1357 /* Handle resets sent from the other side */ 1358 case CTL_MSG_MANAGE_TASKS: { 1359 struct ctl_taskio *taskio; 1360 taskio = (struct ctl_taskio *)ctl_alloc_io( 1361 softc->othersc_pool); 1362 ctl_zero_io((union ctl_io *)taskio); 1363 taskio->io_hdr.io_type = CTL_IO_TASK; 1364 taskio->io_hdr.flags |= CTL_FLAG_FROM_OTHER_SC; 1365 taskio->io_hdr.nexus = msg->hdr.nexus; 1366 taskio->task_action = msg->task.task_action; 1367 taskio->tag_num = msg->task.tag_num; 1368 taskio->tag_type = msg->task.tag_type; 1369#ifdef CTL_TIME_IO 1370 taskio->io_hdr.start_time = time_uptime; 1371 getbintime(&taskio->io_hdr.start_bt); 1372#endif /* CTL_TIME_IO */ 1373 ctl_run_task((union ctl_io *)taskio); 1374 break; 1375 } 1376 /* Persistent Reserve action which needs attention */ 1377 case CTL_MSG_PERS_ACTION: 1378 presio = (struct ctl_prio *)ctl_alloc_io( 1379 softc->othersc_pool); 1380 ctl_zero_io((union ctl_io *)presio); 1381 presio->io_hdr.msg_type = CTL_MSG_PERS_ACTION; 1382 presio->io_hdr.flags |= CTL_FLAG_FROM_OTHER_SC; 1383 presio->io_hdr.nexus = msg->hdr.nexus; 1384 presio->pr_msg = msg->pr; 1385 ctl_enqueue_isc((union ctl_io *)presio); 1386 break; 1387 case CTL_MSG_UA: 1388 ctl_isc_ua(softc, msg, param); 1389 break; 1390 case CTL_MSG_PORT_SYNC: 1391 ctl_isc_port_sync(softc, msg, param); 1392 break; 1393 case CTL_MSG_LUN_SYNC: 1394 ctl_isc_lun_sync(softc, msg, param); 1395 break; 1396 case CTL_MSG_IID_SYNC: 1397 ctl_isc_iid_sync(softc, msg, param); 1398 break; 1399 case CTL_MSG_LOGIN: 1400 ctl_isc_login(softc, msg, param); 1401 break; 1402 case CTL_MSG_MODE_SYNC: 1403 ctl_isc_mode_sync(softc, msg, param); 1404 break; 1405 default: 1406 printf("Received HA message of unknown type %d\n", 1407 msg->hdr.msg_type); 1408 ctl_ha_msg_abort(CTL_HA_CHAN_CTL); 1409 break; 1410 } 1411 if (msg != &msgbuf) 1412 free(msg, M_CTL); 1413 } else if (event == CTL_HA_EVT_LINK_CHANGE) { 1414 printf("CTL: HA link status changed from %d to %d\n", 1415 softc->ha_link, param); 1416 if (param == softc->ha_link) 1417 return; 1418 if (softc->ha_link == CTL_HA_LINK_ONLINE) { 1419 softc->ha_link = param; 1420 ctl_isc_ha_link_down(softc); 1421 } else { 1422 softc->ha_link = param; 1423 if (softc->ha_link == CTL_HA_LINK_ONLINE) 1424 ctl_isc_ha_link_up(softc); 1425 } 1426 return; 1427 } else { 1428 printf("ctl_isc_event_handler: Unknown event %d\n", event); 1429 return; 1430 } 1431} 1432 1433static void 1434ctl_copy_sense_data(union ctl_ha_msg *src, union ctl_io *dest) 1435{ 1436 1437 memcpy(&dest->scsiio.sense_data, &src->scsi.sense_data, 1438 src->scsi.sense_len); 1439 dest->scsiio.scsi_status = src->scsi.scsi_status; 1440 dest->scsiio.sense_len = src->scsi.sense_len; 1441 dest->io_hdr.status = src->hdr.status; 1442} 1443 1444static void 1445ctl_copy_sense_data_back(union ctl_io *src, union ctl_ha_msg *dest) 1446{ 1447 1448 memcpy(&dest->scsi.sense_data, &src->scsiio.sense_data, 1449 src->scsiio.sense_len); 1450 dest->scsi.scsi_status = src->scsiio.scsi_status; 1451 dest->scsi.sense_len = src->scsiio.sense_len; 1452 dest->hdr.status = src->io_hdr.status; 1453} 1454 1455void 1456ctl_est_ua(struct ctl_lun *lun, uint32_t initidx, ctl_ua_type ua) 1457{ 1458 struct ctl_softc *softc = lun->ctl_softc; 1459 ctl_ua_type *pu; 1460 1461 if (initidx < softc->init_min || initidx >= softc->init_max) 1462 return; 1463 mtx_assert(&lun->lun_lock, MA_OWNED); 1464 pu = lun->pending_ua[initidx / CTL_MAX_INIT_PER_PORT]; 1465 if (pu == NULL) 1466 return; 1467 pu[initidx % CTL_MAX_INIT_PER_PORT] |= ua; 1468} 1469 1470void 1471ctl_est_ua_port(struct ctl_lun *lun, int port, uint32_t except, ctl_ua_type ua) 1472{ 1473 int i; 1474 1475 mtx_assert(&lun->lun_lock, MA_OWNED); 1476 if (lun->pending_ua[port] == NULL) 1477 return; 1478 for (i = 0; i < CTL_MAX_INIT_PER_PORT; i++) { 1479 if (port * CTL_MAX_INIT_PER_PORT + i == except) 1480 continue; 1481 lun->pending_ua[port][i] |= ua; 1482 } 1483} 1484 1485void 1486ctl_est_ua_all(struct ctl_lun *lun, uint32_t except, ctl_ua_type ua) 1487{ 1488 struct ctl_softc *softc = lun->ctl_softc; 1489 int i; 1490 1491 mtx_assert(&lun->lun_lock, MA_OWNED); 1492 for (i = softc->port_min; i < softc->port_max; i++) 1493 ctl_est_ua_port(lun, i, except, ua); 1494} 1495 1496void 1497ctl_clr_ua(struct ctl_lun *lun, uint32_t initidx, ctl_ua_type ua) 1498{ 1499 struct ctl_softc *softc = lun->ctl_softc; 1500 ctl_ua_type *pu; 1501 1502 if (initidx < softc->init_min || initidx >= softc->init_max) 1503 return; 1504 mtx_assert(&lun->lun_lock, MA_OWNED); 1505 pu = lun->pending_ua[initidx / CTL_MAX_INIT_PER_PORT]; 1506 if (pu == NULL) 1507 return; 1508 pu[initidx % CTL_MAX_INIT_PER_PORT] &= ~ua; 1509} 1510 1511void 1512ctl_clr_ua_all(struct ctl_lun *lun, uint32_t except, ctl_ua_type ua) 1513{ 1514 struct ctl_softc *softc = lun->ctl_softc; 1515 int i, j; 1516 1517 mtx_assert(&lun->lun_lock, MA_OWNED); 1518 for (i = softc->port_min; i < softc->port_max; i++) { 1519 if (lun->pending_ua[i] == NULL) 1520 continue; 1521 for (j = 0; j < CTL_MAX_INIT_PER_PORT; j++) { 1522 if (i * CTL_MAX_INIT_PER_PORT + j == except) 1523 continue; 1524 lun->pending_ua[i][j] &= ~ua; 1525 } 1526 } 1527} 1528 1529void 1530ctl_clr_ua_allluns(struct ctl_softc *ctl_softc, uint32_t initidx, 1531 ctl_ua_type ua_type) 1532{ 1533 struct ctl_lun *lun; 1534 1535 mtx_assert(&ctl_softc->ctl_lock, MA_OWNED); 1536 STAILQ_FOREACH(lun, &ctl_softc->lun_list, links) { 1537 mtx_lock(&lun->lun_lock); 1538 ctl_clr_ua(lun, initidx, ua_type); 1539 mtx_unlock(&lun->lun_lock); 1540 } 1541} 1542 1543static int 1544ctl_ha_role_sysctl(SYSCTL_HANDLER_ARGS) 1545{ 1546 struct ctl_softc *softc = (struct ctl_softc *)arg1; 1547 struct ctl_lun *lun; 1548 struct ctl_lun_req ireq; 1549 int error, value; 1550 1551 value = (softc->flags & CTL_FLAG_ACTIVE_SHELF) ? 0 : 1; 1552 error = sysctl_handle_int(oidp, &value, 0, req); 1553 if ((error != 0) || (req->newptr == NULL)) 1554 return (error); 1555 1556 mtx_lock(&softc->ctl_lock); 1557 if (value == 0) 1558 softc->flags |= CTL_FLAG_ACTIVE_SHELF; 1559 else 1560 softc->flags &= ~CTL_FLAG_ACTIVE_SHELF; 1561 STAILQ_FOREACH(lun, &softc->lun_list, links) { 1562 mtx_unlock(&softc->ctl_lock); 1563 bzero(&ireq, sizeof(ireq)); 1564 ireq.reqtype = CTL_LUNREQ_MODIFY; 1565 ireq.reqdata.modify.lun_id = lun->lun; 1566 lun->backend->ioctl(NULL, CTL_LUN_REQ, (caddr_t)&ireq, 0, 1567 curthread); 1568 if (ireq.status != CTL_LUN_OK) { 1569 printf("%s: CTL_LUNREQ_MODIFY returned %d '%s'\n", 1570 __func__, ireq.status, ireq.error_str); 1571 } 1572 mtx_lock(&softc->ctl_lock); 1573 } 1574 mtx_unlock(&softc->ctl_lock); 1575 return (0); 1576} 1577 1578static int 1579ctl_init(void) 1580{ 1581 struct ctl_softc *softc; 1582 void *other_pool; 1583 int i, error, retval; 1584 1585 retval = 0; 1586 softc = control_softc = malloc(sizeof(*control_softc), M_DEVBUF, 1587 M_WAITOK | M_ZERO); 1588 1589 softc->dev = make_dev(&ctl_cdevsw, 0, UID_ROOT, GID_OPERATOR, 0600, 1590 "cam/ctl"); 1591 softc->dev->si_drv1 = softc; 1592 1593 sysctl_ctx_init(&softc->sysctl_ctx); 1594 softc->sysctl_tree = SYSCTL_ADD_NODE(&softc->sysctl_ctx, 1595 SYSCTL_STATIC_CHILDREN(_kern_cam), OID_AUTO, "ctl", 1596 CTLFLAG_RD, 0, "CAM Target Layer"); 1597 1598 if (softc->sysctl_tree == NULL) { 1599 printf("%s: unable to allocate sysctl tree\n", __func__); 1600 destroy_dev(softc->dev); 1601 free(control_softc, M_DEVBUF); 1602 control_softc = NULL; 1603 return (ENOMEM); 1604 } 1605 1606 mtx_init(&softc->ctl_lock, "CTL mutex", NULL, MTX_DEF); 1607 softc->io_zone = uma_zcreate("CTL IO", sizeof(union ctl_io), 1608 NULL, NULL, NULL, NULL, UMA_ALIGN_PTR, 0); 1609 softc->open_count = 0; 1610 1611 /* 1612 * Default to actually sending a SYNCHRONIZE CACHE command down to 1613 * the drive. 1614 */ 1615 softc->flags = CTL_FLAG_REAL_SYNC; 1616 1617 SYSCTL_ADD_INT(&softc->sysctl_ctx, SYSCTL_CHILDREN(softc->sysctl_tree), 1618 OID_AUTO, "ha_mode", CTLFLAG_RDTUN, (int *)&softc->ha_mode, 0, 1619 "HA mode (0 - act/stby, 1 - serialize only, 2 - xfer)"); 1620 1621 /* 1622 * In Copan's HA scheme, the "master" and "slave" roles are 1623 * figured out through the slot the controller is in. Although it 1624 * is an active/active system, someone has to be in charge. 1625 */ 1626 SYSCTL_ADD_INT(&softc->sysctl_ctx, SYSCTL_CHILDREN(softc->sysctl_tree), 1627 OID_AUTO, "ha_id", CTLFLAG_RDTUN, &softc->ha_id, 0, 1628 "HA head ID (0 - no HA)"); 1629 if (softc->ha_id == 0 || softc->ha_id > NUM_TARGET_PORT_GROUPS) { 1630 softc->flags |= CTL_FLAG_ACTIVE_SHELF; 1631 softc->is_single = 1; 1632 softc->port_cnt = CTL_MAX_PORTS; 1633 softc->port_min = 0; 1634 } else { 1635 softc->port_cnt = CTL_MAX_PORTS / NUM_TARGET_PORT_GROUPS; 1636 softc->port_min = (softc->ha_id - 1) * softc->port_cnt; 1637 } 1638 softc->port_max = softc->port_min + softc->port_cnt; 1639 softc->init_min = softc->port_min * CTL_MAX_INIT_PER_PORT; 1640 softc->init_max = softc->port_max * CTL_MAX_INIT_PER_PORT; 1641 1642 SYSCTL_ADD_INT(&softc->sysctl_ctx, SYSCTL_CHILDREN(softc->sysctl_tree), 1643 OID_AUTO, "ha_link", CTLFLAG_RD, (int *)&softc->ha_link, 0, 1644 "HA link state (0 - offline, 1 - unknown, 2 - online)"); 1645 1646 STAILQ_INIT(&softc->lun_list); 1647 STAILQ_INIT(&softc->pending_lun_queue); 1648 STAILQ_INIT(&softc->fe_list); 1649 STAILQ_INIT(&softc->port_list); 1650 STAILQ_INIT(&softc->be_list); 1651 ctl_tpc_init(softc); 1652 1653 if (ctl_pool_create(softc, "othersc", CTL_POOL_ENTRIES_OTHER_SC, 1654 &other_pool) != 0) 1655 { 1656 printf("ctl: can't allocate %d entry other SC pool, " 1657 "exiting\n", CTL_POOL_ENTRIES_OTHER_SC); 1658 return (ENOMEM); 1659 } 1660 softc->othersc_pool = other_pool; 1661 1662 if (worker_threads <= 0) 1663 worker_threads = max(1, mp_ncpus / 4); 1664 if (worker_threads > CTL_MAX_THREADS) 1665 worker_threads = CTL_MAX_THREADS; 1666 1667 for (i = 0; i < worker_threads; i++) { 1668 struct ctl_thread *thr = &softc->threads[i]; 1669 1670 mtx_init(&thr->queue_lock, "CTL queue mutex", NULL, MTX_DEF); 1671 thr->ctl_softc = softc; 1672 STAILQ_INIT(&thr->incoming_queue); 1673 STAILQ_INIT(&thr->rtr_queue); 1674 STAILQ_INIT(&thr->done_queue); 1675 STAILQ_INIT(&thr->isc_queue); 1676 1677 error = kproc_kthread_add(ctl_work_thread, thr, 1678 &softc->ctl_proc, &thr->thread, 0, 0, "ctl", "work%d", i); 1679 if (error != 0) { 1680 printf("error creating CTL work thread!\n"); 1681 ctl_pool_free(other_pool); 1682 return (error); 1683 } 1684 } 1685 error = kproc_kthread_add(ctl_lun_thread, softc, 1686 &softc->ctl_proc, NULL, 0, 0, "ctl", "lun"); 1687 if (error != 0) { 1688 printf("error creating CTL lun thread!\n"); 1689 ctl_pool_free(other_pool); 1690 return (error); 1691 } 1692 error = kproc_kthread_add(ctl_thresh_thread, softc, 1693 &softc->ctl_proc, NULL, 0, 0, "ctl", "thresh"); 1694 if (error != 0) { 1695 printf("error creating CTL threshold thread!\n"); 1696 ctl_pool_free(other_pool); 1697 return (error); 1698 } 1699 1700 SYSCTL_ADD_PROC(&softc->sysctl_ctx,SYSCTL_CHILDREN(softc->sysctl_tree), 1701 OID_AUTO, "ha_role", CTLTYPE_INT | CTLFLAG_RWTUN, 1702 softc, 0, ctl_ha_role_sysctl, "I", "HA role for this head"); 1703 1704 if (softc->is_single == 0) { 1705 ctl_frontend_register(&ha_frontend); 1706 if (ctl_ha_msg_init(softc) != CTL_HA_STATUS_SUCCESS) { 1707 printf("ctl_init: ctl_ha_msg_init failed.\n"); 1708 softc->is_single = 1; 1709 } else 1710 if (ctl_ha_msg_register(CTL_HA_CHAN_CTL, ctl_isc_event_handler) 1711 != CTL_HA_STATUS_SUCCESS) { 1712 printf("ctl_init: ctl_ha_msg_register failed.\n"); 1713 softc->is_single = 1; 1714 } 1715 } 1716 return (0); 1717} 1718 1719void 1720ctl_shutdown(void) 1721{ 1722 struct ctl_softc *softc = control_softc; 1723 struct ctl_lun *lun, *next_lun; 1724 1725 if (softc->is_single == 0) { 1726 ctl_ha_msg_shutdown(softc); 1727 if (ctl_ha_msg_deregister(CTL_HA_CHAN_CTL) 1728 != CTL_HA_STATUS_SUCCESS) 1729 printf("%s: ctl_ha_msg_deregister failed.\n", __func__); 1730 if (ctl_ha_msg_destroy(softc) != CTL_HA_STATUS_SUCCESS) 1731 printf("%s: ctl_ha_msg_destroy failed.\n", __func__); 1732 ctl_frontend_deregister(&ha_frontend); 1733 } 1734 1735 mtx_lock(&softc->ctl_lock); 1736 1737 /* 1738 * Free up each LUN. 1739 */ 1740 for (lun = STAILQ_FIRST(&softc->lun_list); lun != NULL; lun = next_lun){ 1741 next_lun = STAILQ_NEXT(lun, links); 1742 ctl_free_lun(lun); 1743 } 1744 1745 mtx_unlock(&softc->ctl_lock); 1746 1747#if 0 1748 ctl_shutdown_thread(softc->work_thread); 1749 mtx_destroy(&softc->queue_lock); 1750#endif 1751 1752 ctl_tpc_shutdown(softc); 1753 uma_zdestroy(softc->io_zone); 1754 mtx_destroy(&softc->ctl_lock); 1755 1756 destroy_dev(softc->dev); 1757 1758 sysctl_ctx_free(&softc->sysctl_ctx); 1759 1760 free(control_softc, M_DEVBUF); 1761 control_softc = NULL; 1762} 1763 1764static int 1765ctl_module_event_handler(module_t mod, int what, void *arg) 1766{ 1767 1768 switch (what) { 1769 case MOD_LOAD: 1770 return (ctl_init()); 1771 case MOD_UNLOAD: 1772 return (EBUSY); 1773 default: 1774 return (EOPNOTSUPP); 1775 } 1776} 1777 1778/* 1779 * XXX KDM should we do some access checks here? Bump a reference count to 1780 * prevent a CTL module from being unloaded while someone has it open? 1781 */ 1782static int 1783ctl_open(struct cdev *dev, int flags, int fmt, struct thread *td) 1784{ 1785 return (0); 1786} 1787 1788static int 1789ctl_close(struct cdev *dev, int flags, int fmt, struct thread *td) 1790{ 1791 return (0); 1792} 1793 1794/* 1795 * Remove an initiator by port number and initiator ID. 1796 * Returns 0 for success, -1 for failure. 1797 */ 1798int 1799ctl_remove_initiator(struct ctl_port *port, int iid) 1800{ 1801 struct ctl_softc *softc = port->ctl_softc; 1802 1803 mtx_assert(&softc->ctl_lock, MA_NOTOWNED); 1804 1805 if (iid > CTL_MAX_INIT_PER_PORT) { 1806 printf("%s: initiator ID %u > maximun %u!\n", 1807 __func__, iid, CTL_MAX_INIT_PER_PORT); 1808 return (-1); 1809 } 1810 1811 mtx_lock(&softc->ctl_lock); 1812 port->wwpn_iid[iid].in_use--; 1813 port->wwpn_iid[iid].last_use = time_uptime; 1814 mtx_unlock(&softc->ctl_lock); 1815 ctl_isc_announce_iid(port, iid); 1816 1817 return (0); 1818} 1819 1820/* 1821 * Add an initiator to the initiator map. 1822 * Returns iid for success, < 0 for failure. 1823 */ 1824int 1825ctl_add_initiator(struct ctl_port *port, int iid, uint64_t wwpn, char *name) 1826{ 1827 struct ctl_softc *softc = port->ctl_softc; 1828 time_t best_time; 1829 int i, best; 1830 1831 mtx_assert(&softc->ctl_lock, MA_NOTOWNED); 1832 1833 if (iid >= CTL_MAX_INIT_PER_PORT) { 1834 printf("%s: WWPN %#jx initiator ID %u > maximum %u!\n", 1835 __func__, wwpn, iid, CTL_MAX_INIT_PER_PORT); 1836 free(name, M_CTL); 1837 return (-1); 1838 } 1839 1840 mtx_lock(&softc->ctl_lock); 1841 1842 if (iid < 0 && (wwpn != 0 || name != NULL)) { 1843 for (i = 0; i < CTL_MAX_INIT_PER_PORT; i++) { 1844 if (wwpn != 0 && wwpn == port->wwpn_iid[i].wwpn) { 1845 iid = i; 1846 break; 1847 } 1848 if (name != NULL && port->wwpn_iid[i].name != NULL && 1849 strcmp(name, port->wwpn_iid[i].name) == 0) { 1850 iid = i; 1851 break; 1852 } 1853 } 1854 } 1855 1856 if (iid < 0) { 1857 for (i = 0; i < CTL_MAX_INIT_PER_PORT; i++) { 1858 if (port->wwpn_iid[i].in_use == 0 && 1859 port->wwpn_iid[i].wwpn == 0 && 1860 port->wwpn_iid[i].name == NULL) { 1861 iid = i; 1862 break; 1863 } 1864 } 1865 } 1866 1867 if (iid < 0) { 1868 best = -1; 1869 best_time = INT32_MAX; 1870 for (i = 0; i < CTL_MAX_INIT_PER_PORT; i++) { 1871 if (port->wwpn_iid[i].in_use == 0) { 1872 if (port->wwpn_iid[i].last_use < best_time) { 1873 best = i; 1874 best_time = port->wwpn_iid[i].last_use; 1875 } 1876 } 1877 } 1878 iid = best; 1879 } 1880 1881 if (iid < 0) { 1882 mtx_unlock(&softc->ctl_lock); 1883 free(name, M_CTL); 1884 return (-2); 1885 } 1886 1887 if (port->wwpn_iid[iid].in_use > 0 && (wwpn != 0 || name != NULL)) { 1888 /* 1889 * This is not an error yet. 1890 */ 1891 if (wwpn != 0 && wwpn == port->wwpn_iid[iid].wwpn) { 1892#if 0 1893 printf("%s: port %d iid %u WWPN %#jx arrived" 1894 " again\n", __func__, port->targ_port, 1895 iid, (uintmax_t)wwpn); 1896#endif 1897 goto take; 1898 } 1899 if (name != NULL && port->wwpn_iid[iid].name != NULL && 1900 strcmp(name, port->wwpn_iid[iid].name) == 0) { 1901#if 0 1902 printf("%s: port %d iid %u name '%s' arrived" 1903 " again\n", __func__, port->targ_port, 1904 iid, name); 1905#endif 1906 goto take; 1907 } 1908 1909 /* 1910 * This is an error, but what do we do about it? The 1911 * driver is telling us we have a new WWPN for this 1912 * initiator ID, so we pretty much need to use it. 1913 */ 1914 printf("%s: port %d iid %u WWPN %#jx '%s' arrived," 1915 " but WWPN %#jx '%s' is still at that address\n", 1916 __func__, port->targ_port, iid, wwpn, name, 1917 (uintmax_t)port->wwpn_iid[iid].wwpn, 1918 port->wwpn_iid[iid].name); 1919 1920 /* 1921 * XXX KDM clear have_ca and ua_pending on each LUN for 1922 * this initiator. 1923 */ 1924 } 1925take: 1926 free(port->wwpn_iid[iid].name, M_CTL); 1927 port->wwpn_iid[iid].name = name; 1928 port->wwpn_iid[iid].wwpn = wwpn; 1929 port->wwpn_iid[iid].in_use++; 1930 mtx_unlock(&softc->ctl_lock); 1931 ctl_isc_announce_iid(port, iid); 1932 1933 return (iid); 1934} 1935 1936static int 1937ctl_create_iid(struct ctl_port *port, int iid, uint8_t *buf) 1938{ 1939 int len; 1940 1941 switch (port->port_type) { 1942 case CTL_PORT_FC: 1943 { 1944 struct scsi_transportid_fcp *id = 1945 (struct scsi_transportid_fcp *)buf; 1946 if (port->wwpn_iid[iid].wwpn == 0) 1947 return (0); 1948 memset(id, 0, sizeof(*id)); 1949 id->format_protocol = SCSI_PROTO_FC; 1950 scsi_u64to8b(port->wwpn_iid[iid].wwpn, id->n_port_name); 1951 return (sizeof(*id)); 1952 } 1953 case CTL_PORT_ISCSI: 1954 { 1955 struct scsi_transportid_iscsi_port *id = 1956 (struct scsi_transportid_iscsi_port *)buf; 1957 if (port->wwpn_iid[iid].name == NULL) 1958 return (0); 1959 memset(id, 0, 256); 1960 id->format_protocol = SCSI_TRN_ISCSI_FORMAT_PORT | 1961 SCSI_PROTO_ISCSI; 1962 len = strlcpy(id->iscsi_name, port->wwpn_iid[iid].name, 252) + 1; 1963 len = roundup2(min(len, 252), 4); 1964 scsi_ulto2b(len, id->additional_length); 1965 return (sizeof(*id) + len); 1966 } 1967 case CTL_PORT_SAS: 1968 { 1969 struct scsi_transportid_sas *id = 1970 (struct scsi_transportid_sas *)buf; 1971 if (port->wwpn_iid[iid].wwpn == 0) 1972 return (0); 1973 memset(id, 0, sizeof(*id)); 1974 id->format_protocol = SCSI_PROTO_SAS; 1975 scsi_u64to8b(port->wwpn_iid[iid].wwpn, id->sas_address); 1976 return (sizeof(*id)); 1977 } 1978 default: 1979 { 1980 struct scsi_transportid_spi *id = 1981 (struct scsi_transportid_spi *)buf; 1982 memset(id, 0, sizeof(*id)); 1983 id->format_protocol = SCSI_PROTO_SPI; 1984 scsi_ulto2b(iid, id->scsi_addr); 1985 scsi_ulto2b(port->targ_port, id->rel_trgt_port_id); 1986 return (sizeof(*id)); 1987 } 1988 } 1989} 1990 1991/* 1992 * Serialize a command that went down the "wrong" side, and so was sent to 1993 * this controller for execution. The logic is a little different than the 1994 * standard case in ctl_scsiio_precheck(). Errors in this case need to get 1995 * sent back to the other side, but in the success case, we execute the 1996 * command on this side (XFER mode) or tell the other side to execute it 1997 * (SER_ONLY mode). 1998 */ 1999static int 2000ctl_serialize_other_sc_cmd(struct ctl_scsiio *ctsio) 2001{ 2002 struct ctl_softc *softc = control_softc; 2003 union ctl_ha_msg msg_info; 2004 struct ctl_lun *lun; 2005 const struct ctl_cmd_entry *entry; 2006 int retval = 0; 2007 uint32_t targ_lun; 2008 2009 targ_lun = ctsio->io_hdr.nexus.targ_mapped_lun; 2010 mtx_lock(&softc->ctl_lock); 2011 if ((targ_lun < CTL_MAX_LUNS) && 2012 ((lun = softc->ctl_luns[targ_lun]) != NULL)) { 2013 mtx_lock(&lun->lun_lock); 2014 mtx_unlock(&softc->ctl_lock); 2015 /* 2016 * If the LUN is invalid, pretend that it doesn't exist. 2017 * It will go away as soon as all pending I/O has been 2018 * completed. 2019 */ 2020 if (lun->flags & CTL_LUN_DISABLED) { 2021 mtx_unlock(&lun->lun_lock); 2022 lun = NULL; 2023 } 2024 } else { 2025 mtx_unlock(&softc->ctl_lock); 2026 lun = NULL; 2027 } 2028 if (lun == NULL) { 2029 /* 2030 * The other node would not send this request to us unless 2031 * received announce that we are primary node for this LUN. 2032 * If this LUN does not exist now, it is probably result of 2033 * a race, so respond to initiator in the most opaque way. 2034 */ 2035 ctl_set_busy(ctsio); 2036 ctl_copy_sense_data_back((union ctl_io *)ctsio, &msg_info); 2037 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 2038 msg_info.hdr.serializing_sc = NULL; 2039 msg_info.hdr.msg_type = CTL_MSG_BAD_JUJU; 2040 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 2041 sizeof(msg_info.scsi), M_WAITOK); 2042 return(1); 2043 } 2044 2045 entry = ctl_get_cmd_entry(ctsio, NULL); 2046 if (ctl_scsiio_lun_check(lun, entry, ctsio) != 0) { 2047 mtx_unlock(&lun->lun_lock); 2048 ctl_copy_sense_data_back((union ctl_io *)ctsio, &msg_info); 2049 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 2050 msg_info.hdr.serializing_sc = NULL; 2051 msg_info.hdr.msg_type = CTL_MSG_BAD_JUJU; 2052 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 2053 sizeof(msg_info.scsi), M_WAITOK); 2054 return(1); 2055 } 2056 2057 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr = lun; 2058 ctsio->io_hdr.ctl_private[CTL_PRIV_BACKEND_LUN].ptr = lun->be_lun; 2059 2060 /* 2061 * Every I/O goes into the OOA queue for a 2062 * particular LUN, and stays there until completion. 2063 */ 2064#ifdef CTL_TIME_IO 2065 if (TAILQ_EMPTY(&lun->ooa_queue)) 2066 lun->idle_time += getsbinuptime() - lun->last_busy; 2067#endif 2068 TAILQ_INSERT_TAIL(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 2069 2070 switch (ctl_check_ooa(lun, (union ctl_io *)ctsio, 2071 (union ctl_io *)TAILQ_PREV(&ctsio->io_hdr, ctl_ooaq, 2072 ooa_links))) { 2073 case CTL_ACTION_BLOCK: 2074 ctsio->io_hdr.flags |= CTL_FLAG_BLOCKED; 2075 TAILQ_INSERT_TAIL(&lun->blocked_queue, &ctsio->io_hdr, 2076 blocked_links); 2077 mtx_unlock(&lun->lun_lock); 2078 break; 2079 case CTL_ACTION_PASS: 2080 case CTL_ACTION_SKIP: 2081 if (softc->ha_mode == CTL_HA_MODE_XFER) { 2082 ctsio->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 2083 ctl_enqueue_rtr((union ctl_io *)ctsio); 2084 mtx_unlock(&lun->lun_lock); 2085 } else { 2086 ctsio->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 2087 mtx_unlock(&lun->lun_lock); 2088 2089 /* send msg back to other side */ 2090 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 2091 msg_info.hdr.serializing_sc = (union ctl_io *)ctsio; 2092 msg_info.hdr.msg_type = CTL_MSG_R2R; 2093 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 2094 sizeof(msg_info.hdr), M_WAITOK); 2095 } 2096 break; 2097 case CTL_ACTION_OVERLAP: 2098 TAILQ_REMOVE(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 2099 mtx_unlock(&lun->lun_lock); 2100 retval = 1; 2101 2102 ctl_set_overlapped_cmd(ctsio); 2103 ctl_copy_sense_data_back((union ctl_io *)ctsio, &msg_info); 2104 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 2105 msg_info.hdr.serializing_sc = NULL; 2106 msg_info.hdr.msg_type = CTL_MSG_BAD_JUJU; 2107 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 2108 sizeof(msg_info.scsi), M_WAITOK); 2109 break; 2110 case CTL_ACTION_OVERLAP_TAG: 2111 TAILQ_REMOVE(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 2112 mtx_unlock(&lun->lun_lock); 2113 retval = 1; 2114 ctl_set_overlapped_tag(ctsio, ctsio->tag_num); 2115 ctl_copy_sense_data_back((union ctl_io *)ctsio, &msg_info); 2116 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 2117 msg_info.hdr.serializing_sc = NULL; 2118 msg_info.hdr.msg_type = CTL_MSG_BAD_JUJU; 2119 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 2120 sizeof(msg_info.scsi), M_WAITOK); 2121 break; 2122 case CTL_ACTION_ERROR: 2123 default: 2124 TAILQ_REMOVE(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 2125 mtx_unlock(&lun->lun_lock); 2126 retval = 1; 2127 2128 ctl_set_internal_failure(ctsio, /*sks_valid*/ 0, 2129 /*retry_count*/ 0); 2130 ctl_copy_sense_data_back((union ctl_io *)ctsio, &msg_info); 2131 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 2132 msg_info.hdr.serializing_sc = NULL; 2133 msg_info.hdr.msg_type = CTL_MSG_BAD_JUJU; 2134 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 2135 sizeof(msg_info.scsi), M_WAITOK); 2136 break; 2137 } 2138 return (retval); 2139} 2140 2141/* 2142 * Returns 0 for success, errno for failure. 2143 */ 2144static int 2145ctl_ioctl_fill_ooa(struct ctl_lun *lun, uint32_t *cur_fill_num, 2146 struct ctl_ooa *ooa_hdr, struct ctl_ooa_entry *kern_entries) 2147{ 2148 union ctl_io *io; 2149 int retval; 2150 2151 retval = 0; 2152 2153 mtx_lock(&lun->lun_lock); 2154 for (io = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); (io != NULL); 2155 (*cur_fill_num)++, io = (union ctl_io *)TAILQ_NEXT(&io->io_hdr, 2156 ooa_links)) { 2157 struct ctl_ooa_entry *entry; 2158 2159 /* 2160 * If we've got more than we can fit, just count the 2161 * remaining entries. 2162 */ 2163 if (*cur_fill_num >= ooa_hdr->alloc_num) 2164 continue; 2165 2166 entry = &kern_entries[*cur_fill_num]; 2167 2168 entry->tag_num = io->scsiio.tag_num; 2169 entry->lun_num = lun->lun; 2170#ifdef CTL_TIME_IO 2171 entry->start_bt = io->io_hdr.start_bt; 2172#endif 2173 bcopy(io->scsiio.cdb, entry->cdb, io->scsiio.cdb_len); 2174 entry->cdb_len = io->scsiio.cdb_len; 2175 if (io->io_hdr.flags & CTL_FLAG_BLOCKED) 2176 entry->cmd_flags |= CTL_OOACMD_FLAG_BLOCKED; 2177 2178 if (io->io_hdr.flags & CTL_FLAG_DMA_INPROG) 2179 entry->cmd_flags |= CTL_OOACMD_FLAG_DMA; 2180 2181 if (io->io_hdr.flags & CTL_FLAG_ABORT) 2182 entry->cmd_flags |= CTL_OOACMD_FLAG_ABORT; 2183 2184 if (io->io_hdr.flags & CTL_FLAG_IS_WAS_ON_RTR) 2185 entry->cmd_flags |= CTL_OOACMD_FLAG_RTR; 2186 2187 if (io->io_hdr.flags & CTL_FLAG_DMA_QUEUED) 2188 entry->cmd_flags |= CTL_OOACMD_FLAG_DMA_QUEUED; 2189 } 2190 mtx_unlock(&lun->lun_lock); 2191 2192 return (retval); 2193} 2194 2195static void * 2196ctl_copyin_alloc(void *user_addr, int len, char *error_str, 2197 size_t error_str_len) 2198{ 2199 void *kptr; 2200 2201 kptr = malloc(len, M_CTL, M_WAITOK | M_ZERO); 2202 2203 if (copyin(user_addr, kptr, len) != 0) { 2204 snprintf(error_str, error_str_len, "Error copying %d bytes " 2205 "from user address %p to kernel address %p", len, 2206 user_addr, kptr); 2207 free(kptr, M_CTL); 2208 return (NULL); 2209 } 2210 2211 return (kptr); 2212} 2213 2214static void 2215ctl_free_args(int num_args, struct ctl_be_arg *args) 2216{ 2217 int i; 2218 2219 if (args == NULL) 2220 return; 2221 2222 for (i = 0; i < num_args; i++) { 2223 free(args[i].kname, M_CTL); 2224 free(args[i].kvalue, M_CTL); 2225 } 2226 2227 free(args, M_CTL); 2228} 2229 2230static struct ctl_be_arg * 2231ctl_copyin_args(int num_args, struct ctl_be_arg *uargs, 2232 char *error_str, size_t error_str_len) 2233{ 2234 struct ctl_be_arg *args; 2235 int i; 2236 2237 args = ctl_copyin_alloc(uargs, num_args * sizeof(*args), 2238 error_str, error_str_len); 2239 2240 if (args == NULL) 2241 goto bailout; 2242 2243 for (i = 0; i < num_args; i++) { 2244 args[i].kname = NULL; 2245 args[i].kvalue = NULL; 2246 } 2247 2248 for (i = 0; i < num_args; i++) { 2249 uint8_t *tmpptr; 2250 2251 args[i].kname = ctl_copyin_alloc(args[i].name, 2252 args[i].namelen, error_str, error_str_len); 2253 if (args[i].kname == NULL) 2254 goto bailout; 2255 2256 if (args[i].kname[args[i].namelen - 1] != '\0') { 2257 snprintf(error_str, error_str_len, "Argument %d " 2258 "name is not NUL-terminated", i); 2259 goto bailout; 2260 } 2261 2262 if (args[i].flags & CTL_BEARG_RD) { 2263 tmpptr = ctl_copyin_alloc(args[i].value, 2264 args[i].vallen, error_str, error_str_len); 2265 if (tmpptr == NULL) 2266 goto bailout; 2267 if ((args[i].flags & CTL_BEARG_ASCII) 2268 && (tmpptr[args[i].vallen - 1] != '\0')) { 2269 snprintf(error_str, error_str_len, "Argument " 2270 "%d value is not NUL-terminated", i); 2271 goto bailout; 2272 } 2273 args[i].kvalue = tmpptr; 2274 } else { 2275 args[i].kvalue = malloc(args[i].vallen, 2276 M_CTL, M_WAITOK | M_ZERO); 2277 } 2278 } 2279 2280 return (args); 2281bailout: 2282 2283 ctl_free_args(num_args, args); 2284 2285 return (NULL); 2286} 2287 2288static void 2289ctl_copyout_args(int num_args, struct ctl_be_arg *args) 2290{ 2291 int i; 2292 2293 for (i = 0; i < num_args; i++) { 2294 if (args[i].flags & CTL_BEARG_WR) 2295 copyout(args[i].kvalue, args[i].value, args[i].vallen); 2296 } 2297} 2298 2299/* 2300 * Escape characters that are illegal or not recommended in XML. 2301 */ 2302int 2303ctl_sbuf_printf_esc(struct sbuf *sb, char *str, int size) 2304{ 2305 char *end = str + size; 2306 int retval; 2307 2308 retval = 0; 2309 2310 for (; *str && str < end; str++) { 2311 switch (*str) { 2312 case '&': 2313 retval = sbuf_printf(sb, "&"); 2314 break; 2315 case '>': 2316 retval = sbuf_printf(sb, ">"); 2317 break; 2318 case '<': 2319 retval = sbuf_printf(sb, "<"); 2320 break; 2321 default: 2322 retval = sbuf_putc(sb, *str); 2323 break; 2324 } 2325 2326 if (retval != 0) 2327 break; 2328 2329 } 2330 2331 return (retval); 2332} 2333 2334static void 2335ctl_id_sbuf(struct ctl_devid *id, struct sbuf *sb) 2336{ 2337 struct scsi_vpd_id_descriptor *desc; 2338 int i; 2339 2340 if (id == NULL || id->len < 4) 2341 return; 2342 desc = (struct scsi_vpd_id_descriptor *)id->data; 2343 switch (desc->id_type & SVPD_ID_TYPE_MASK) { 2344 case SVPD_ID_TYPE_T10: 2345 sbuf_printf(sb, "t10."); 2346 break; 2347 case SVPD_ID_TYPE_EUI64: 2348 sbuf_printf(sb, "eui."); 2349 break; 2350 case SVPD_ID_TYPE_NAA: 2351 sbuf_printf(sb, "naa."); 2352 break; 2353 case SVPD_ID_TYPE_SCSI_NAME: 2354 break; 2355 } 2356 switch (desc->proto_codeset & SVPD_ID_CODESET_MASK) { 2357 case SVPD_ID_CODESET_BINARY: 2358 for (i = 0; i < desc->length; i++) 2359 sbuf_printf(sb, "%02x", desc->identifier[i]); 2360 break; 2361 case SVPD_ID_CODESET_ASCII: 2362 sbuf_printf(sb, "%.*s", (int)desc->length, 2363 (char *)desc->identifier); 2364 break; 2365 case SVPD_ID_CODESET_UTF8: 2366 sbuf_printf(sb, "%s", (char *)desc->identifier); 2367 break; 2368 } 2369} 2370 2371static int 2372ctl_ioctl(struct cdev *dev, u_long cmd, caddr_t addr, int flag, 2373 struct thread *td) 2374{ 2375 struct ctl_softc *softc = dev->si_drv1; 2376 struct ctl_lun *lun; 2377 int retval; 2378 2379 retval = 0; 2380 2381 switch (cmd) { 2382 case CTL_IO: 2383 retval = ctl_ioctl_io(dev, cmd, addr, flag, td); 2384 break; 2385 case CTL_ENABLE_PORT: 2386 case CTL_DISABLE_PORT: 2387 case CTL_SET_PORT_WWNS: { 2388 struct ctl_port *port; 2389 struct ctl_port_entry *entry; 2390 2391 entry = (struct ctl_port_entry *)addr; 2392 2393 mtx_lock(&softc->ctl_lock); 2394 STAILQ_FOREACH(port, &softc->port_list, links) { 2395 int action, done; 2396 2397 if (port->targ_port < softc->port_min || 2398 port->targ_port >= softc->port_max) 2399 continue; 2400 2401 action = 0; 2402 done = 0; 2403 if ((entry->port_type == CTL_PORT_NONE) 2404 && (entry->targ_port == port->targ_port)) { 2405 /* 2406 * If the user only wants to enable or 2407 * disable or set WWNs on a specific port, 2408 * do the operation and we're done. 2409 */ 2410 action = 1; 2411 done = 1; 2412 } else if (entry->port_type & port->port_type) { 2413 /* 2414 * Compare the user's type mask with the 2415 * particular frontend type to see if we 2416 * have a match. 2417 */ 2418 action = 1; 2419 done = 0; 2420 2421 /* 2422 * Make sure the user isn't trying to set 2423 * WWNs on multiple ports at the same time. 2424 */ 2425 if (cmd == CTL_SET_PORT_WWNS) { 2426 printf("%s: Can't set WWNs on " 2427 "multiple ports\n", __func__); 2428 retval = EINVAL; 2429 break; 2430 } 2431 } 2432 if (action == 0) 2433 continue; 2434 2435 /* 2436 * XXX KDM we have to drop the lock here, because 2437 * the online/offline operations can potentially 2438 * block. We need to reference count the frontends 2439 * so they can't go away, 2440 */ 2441 if (cmd == CTL_ENABLE_PORT) { 2442 mtx_unlock(&softc->ctl_lock); 2443 ctl_port_online(port); 2444 mtx_lock(&softc->ctl_lock); 2445 } else if (cmd == CTL_DISABLE_PORT) { 2446 mtx_unlock(&softc->ctl_lock); 2447 ctl_port_offline(port); 2448 mtx_lock(&softc->ctl_lock); 2449 } else if (cmd == CTL_SET_PORT_WWNS) { 2450 ctl_port_set_wwns(port, 2451 (entry->flags & CTL_PORT_WWNN_VALID) ? 2452 1 : 0, entry->wwnn, 2453 (entry->flags & CTL_PORT_WWPN_VALID) ? 2454 1 : 0, entry->wwpn); 2455 } 2456 if (done != 0) 2457 break; 2458 } 2459 mtx_unlock(&softc->ctl_lock); 2460 break; 2461 } 2462 case CTL_GET_PORT_LIST: { 2463 struct ctl_port *port; 2464 struct ctl_port_list *list; 2465 int i; 2466 2467 list = (struct ctl_port_list *)addr; 2468 2469 if (list->alloc_len != (list->alloc_num * 2470 sizeof(struct ctl_port_entry))) { 2471 printf("%s: CTL_GET_PORT_LIST: alloc_len %u != " 2472 "alloc_num %u * sizeof(struct ctl_port_entry) " 2473 "%zu\n", __func__, list->alloc_len, 2474 list->alloc_num, sizeof(struct ctl_port_entry)); 2475 retval = EINVAL; 2476 break; 2477 } 2478 list->fill_len = 0; 2479 list->fill_num = 0; 2480 list->dropped_num = 0; 2481 i = 0; 2482 mtx_lock(&softc->ctl_lock); 2483 STAILQ_FOREACH(port, &softc->port_list, links) { 2484 struct ctl_port_entry entry, *list_entry; 2485 2486 if (list->fill_num >= list->alloc_num) { 2487 list->dropped_num++; 2488 continue; 2489 } 2490 2491 entry.port_type = port->port_type; 2492 strlcpy(entry.port_name, port->port_name, 2493 sizeof(entry.port_name)); 2494 entry.targ_port = port->targ_port; 2495 entry.physical_port = port->physical_port; 2496 entry.virtual_port = port->virtual_port; 2497 entry.wwnn = port->wwnn; 2498 entry.wwpn = port->wwpn; 2499 if (port->status & CTL_PORT_STATUS_ONLINE) 2500 entry.online = 1; 2501 else 2502 entry.online = 0; 2503 2504 list_entry = &list->entries[i]; 2505 2506 retval = copyout(&entry, list_entry, sizeof(entry)); 2507 if (retval != 0) { 2508 printf("%s: CTL_GET_PORT_LIST: copyout " 2509 "returned %d\n", __func__, retval); 2510 break; 2511 } 2512 i++; 2513 list->fill_num++; 2514 list->fill_len += sizeof(entry); 2515 } 2516 mtx_unlock(&softc->ctl_lock); 2517 2518 /* 2519 * If this is non-zero, we had a copyout fault, so there's 2520 * probably no point in attempting to set the status inside 2521 * the structure. 2522 */ 2523 if (retval != 0) 2524 break; 2525 2526 if (list->dropped_num > 0) 2527 list->status = CTL_PORT_LIST_NEED_MORE_SPACE; 2528 else 2529 list->status = CTL_PORT_LIST_OK; 2530 break; 2531 } 2532 case CTL_DUMP_OOA: { 2533 union ctl_io *io; 2534 char printbuf[128]; 2535 struct sbuf sb; 2536 2537 mtx_lock(&softc->ctl_lock); 2538 printf("Dumping OOA queues:\n"); 2539 STAILQ_FOREACH(lun, &softc->lun_list, links) { 2540 mtx_lock(&lun->lun_lock); 2541 for (io = (union ctl_io *)TAILQ_FIRST( 2542 &lun->ooa_queue); io != NULL; 2543 io = (union ctl_io *)TAILQ_NEXT(&io->io_hdr, 2544 ooa_links)) { 2545 sbuf_new(&sb, printbuf, sizeof(printbuf), 2546 SBUF_FIXEDLEN); 2547 sbuf_printf(&sb, "LUN %jd tag 0x%04x%s%s%s%s: ", 2548 (intmax_t)lun->lun, 2549 io->scsiio.tag_num, 2550 (io->io_hdr.flags & 2551 CTL_FLAG_BLOCKED) ? "" : " BLOCKED", 2552 (io->io_hdr.flags & 2553 CTL_FLAG_DMA_INPROG) ? " DMA" : "", 2554 (io->io_hdr.flags & 2555 CTL_FLAG_ABORT) ? " ABORT" : "", 2556 (io->io_hdr.flags & 2557 CTL_FLAG_IS_WAS_ON_RTR) ? " RTR" : ""); 2558 ctl_scsi_command_string(&io->scsiio, NULL, &sb); 2559 sbuf_finish(&sb); 2560 printf("%s\n", sbuf_data(&sb)); 2561 } 2562 mtx_unlock(&lun->lun_lock); 2563 } 2564 printf("OOA queues dump done\n"); 2565 mtx_unlock(&softc->ctl_lock); 2566 break; 2567 } 2568 case CTL_GET_OOA: { 2569 struct ctl_ooa *ooa_hdr; 2570 struct ctl_ooa_entry *entries; 2571 uint32_t cur_fill_num; 2572 2573 ooa_hdr = (struct ctl_ooa *)addr; 2574 2575 if ((ooa_hdr->alloc_len == 0) 2576 || (ooa_hdr->alloc_num == 0)) { 2577 printf("%s: CTL_GET_OOA: alloc len %u and alloc num %u " 2578 "must be non-zero\n", __func__, 2579 ooa_hdr->alloc_len, ooa_hdr->alloc_num); 2580 retval = EINVAL; 2581 break; 2582 } 2583 2584 if (ooa_hdr->alloc_len != (ooa_hdr->alloc_num * 2585 sizeof(struct ctl_ooa_entry))) { 2586 printf("%s: CTL_GET_OOA: alloc len %u must be alloc " 2587 "num %d * sizeof(struct ctl_ooa_entry) %zd\n", 2588 __func__, ooa_hdr->alloc_len, 2589 ooa_hdr->alloc_num,sizeof(struct ctl_ooa_entry)); 2590 retval = EINVAL; 2591 break; 2592 } 2593 2594 entries = malloc(ooa_hdr->alloc_len, M_CTL, M_WAITOK | M_ZERO); 2595 if (entries == NULL) { 2596 printf("%s: could not allocate %d bytes for OOA " 2597 "dump\n", __func__, ooa_hdr->alloc_len); 2598 retval = ENOMEM; 2599 break; 2600 } 2601 2602 mtx_lock(&softc->ctl_lock); 2603 if (((ooa_hdr->flags & CTL_OOA_FLAG_ALL_LUNS) == 0) 2604 && ((ooa_hdr->lun_num >= CTL_MAX_LUNS) 2605 || (softc->ctl_luns[ooa_hdr->lun_num] == NULL))) { 2606 mtx_unlock(&softc->ctl_lock); 2607 free(entries, M_CTL); 2608 printf("%s: CTL_GET_OOA: invalid LUN %ju\n", 2609 __func__, (uintmax_t)ooa_hdr->lun_num); 2610 retval = EINVAL; 2611 break; 2612 } 2613 2614 cur_fill_num = 0; 2615 2616 if (ooa_hdr->flags & CTL_OOA_FLAG_ALL_LUNS) { 2617 STAILQ_FOREACH(lun, &softc->lun_list, links) { 2618 retval = ctl_ioctl_fill_ooa(lun, &cur_fill_num, 2619 ooa_hdr, entries); 2620 if (retval != 0) 2621 break; 2622 } 2623 if (retval != 0) { 2624 mtx_unlock(&softc->ctl_lock); 2625 free(entries, M_CTL); 2626 break; 2627 } 2628 } else { 2629 lun = softc->ctl_luns[ooa_hdr->lun_num]; 2630 2631 retval = ctl_ioctl_fill_ooa(lun, &cur_fill_num,ooa_hdr, 2632 entries); 2633 } 2634 mtx_unlock(&softc->ctl_lock); 2635 2636 ooa_hdr->fill_num = min(cur_fill_num, ooa_hdr->alloc_num); 2637 ooa_hdr->fill_len = ooa_hdr->fill_num * 2638 sizeof(struct ctl_ooa_entry); 2639 retval = copyout(entries, ooa_hdr->entries, ooa_hdr->fill_len); 2640 if (retval != 0) { 2641 printf("%s: error copying out %d bytes for OOA dump\n", 2642 __func__, ooa_hdr->fill_len); 2643 } 2644 2645 getbintime(&ooa_hdr->cur_bt); 2646 2647 if (cur_fill_num > ooa_hdr->alloc_num) { 2648 ooa_hdr->dropped_num = cur_fill_num -ooa_hdr->alloc_num; 2649 ooa_hdr->status = CTL_OOA_NEED_MORE_SPACE; 2650 } else { 2651 ooa_hdr->dropped_num = 0; 2652 ooa_hdr->status = CTL_OOA_OK; 2653 } 2654 2655 free(entries, M_CTL); 2656 break; 2657 } 2658 case CTL_CHECK_OOA: { 2659 union ctl_io *io; 2660 struct ctl_ooa_info *ooa_info; 2661 2662 2663 ooa_info = (struct ctl_ooa_info *)addr; 2664 2665 if (ooa_info->lun_id >= CTL_MAX_LUNS) { 2666 ooa_info->status = CTL_OOA_INVALID_LUN; 2667 break; 2668 } 2669 mtx_lock(&softc->ctl_lock); 2670 lun = softc->ctl_luns[ooa_info->lun_id]; 2671 if (lun == NULL) { 2672 mtx_unlock(&softc->ctl_lock); 2673 ooa_info->status = CTL_OOA_INVALID_LUN; 2674 break; 2675 } 2676 mtx_lock(&lun->lun_lock); 2677 mtx_unlock(&softc->ctl_lock); 2678 ooa_info->num_entries = 0; 2679 for (io = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); 2680 io != NULL; io = (union ctl_io *)TAILQ_NEXT( 2681 &io->io_hdr, ooa_links)) { 2682 ooa_info->num_entries++; 2683 } 2684 mtx_unlock(&lun->lun_lock); 2685 2686 ooa_info->status = CTL_OOA_SUCCESS; 2687 2688 break; 2689 } 2690 case CTL_DELAY_IO: { 2691 struct ctl_io_delay_info *delay_info; 2692 2693 delay_info = (struct ctl_io_delay_info *)addr; 2694 2695#ifdef CTL_IO_DELAY 2696 mtx_lock(&softc->ctl_lock); 2697 2698 if ((delay_info->lun_id >= CTL_MAX_LUNS) 2699 || (softc->ctl_luns[delay_info->lun_id] == NULL)) { 2700 delay_info->status = CTL_DELAY_STATUS_INVALID_LUN; 2701 } else { 2702 lun = softc->ctl_luns[delay_info->lun_id]; 2703 mtx_lock(&lun->lun_lock); 2704 2705 delay_info->status = CTL_DELAY_STATUS_OK; 2706 2707 switch (delay_info->delay_type) { 2708 case CTL_DELAY_TYPE_CONT: 2709 break; 2710 case CTL_DELAY_TYPE_ONESHOT: 2711 break; 2712 default: 2713 delay_info->status = 2714 CTL_DELAY_STATUS_INVALID_TYPE; 2715 break; 2716 } 2717 2718 switch (delay_info->delay_loc) { 2719 case CTL_DELAY_LOC_DATAMOVE: 2720 lun->delay_info.datamove_type = 2721 delay_info->delay_type; 2722 lun->delay_info.datamove_delay = 2723 delay_info->delay_secs; 2724 break; 2725 case CTL_DELAY_LOC_DONE: 2726 lun->delay_info.done_type = 2727 delay_info->delay_type; 2728 lun->delay_info.done_delay = 2729 delay_info->delay_secs; 2730 break; 2731 default: 2732 delay_info->status = 2733 CTL_DELAY_STATUS_INVALID_LOC; 2734 break; 2735 } 2736 mtx_unlock(&lun->lun_lock); 2737 } 2738 2739 mtx_unlock(&softc->ctl_lock); 2740#else 2741 delay_info->status = CTL_DELAY_STATUS_NOT_IMPLEMENTED; 2742#endif /* CTL_IO_DELAY */ 2743 break; 2744 } 2745 case CTL_REALSYNC_SET: { 2746 int *syncstate; 2747 2748 syncstate = (int *)addr; 2749 2750 mtx_lock(&softc->ctl_lock); 2751 switch (*syncstate) { 2752 case 0: 2753 softc->flags &= ~CTL_FLAG_REAL_SYNC; 2754 break; 2755 case 1: 2756 softc->flags |= CTL_FLAG_REAL_SYNC; 2757 break; 2758 default: 2759 retval = EINVAL; 2760 break; 2761 } 2762 mtx_unlock(&softc->ctl_lock); 2763 break; 2764 } 2765 case CTL_REALSYNC_GET: { 2766 int *syncstate; 2767 2768 syncstate = (int*)addr; 2769 2770 mtx_lock(&softc->ctl_lock); 2771 if (softc->flags & CTL_FLAG_REAL_SYNC) 2772 *syncstate = 1; 2773 else 2774 *syncstate = 0; 2775 mtx_unlock(&softc->ctl_lock); 2776 2777 break; 2778 } 2779 case CTL_SETSYNC: 2780 case CTL_GETSYNC: { 2781 struct ctl_sync_info *sync_info; 2782 2783 sync_info = (struct ctl_sync_info *)addr; 2784 2785 mtx_lock(&softc->ctl_lock); 2786 lun = softc->ctl_luns[sync_info->lun_id]; 2787 if (lun == NULL) { 2788 mtx_unlock(&softc->ctl_lock); 2789 sync_info->status = CTL_GS_SYNC_NO_LUN; 2790 break; 2791 } 2792 /* 2793 * Get or set the sync interval. We're not bounds checking 2794 * in the set case, hopefully the user won't do something 2795 * silly. 2796 */ 2797 mtx_lock(&lun->lun_lock); 2798 mtx_unlock(&softc->ctl_lock); 2799 if (cmd == CTL_GETSYNC) 2800 sync_info->sync_interval = lun->sync_interval; 2801 else 2802 lun->sync_interval = sync_info->sync_interval; 2803 mtx_unlock(&lun->lun_lock); 2804 2805 sync_info->status = CTL_GS_SYNC_OK; 2806 2807 break; 2808 } 2809 case CTL_GETSTATS: { 2810 struct ctl_stats *stats; 2811 int i; 2812 2813 stats = (struct ctl_stats *)addr; 2814 2815 if ((sizeof(struct ctl_lun_io_stats) * softc->num_luns) > 2816 stats->alloc_len) { 2817 stats->status = CTL_SS_NEED_MORE_SPACE; 2818 stats->num_luns = softc->num_luns; 2819 break; 2820 } 2821 /* 2822 * XXX KDM no locking here. If the LUN list changes, 2823 * things can blow up. 2824 */ 2825 for (i = 0, lun = STAILQ_FIRST(&softc->lun_list); lun != NULL; 2826 i++, lun = STAILQ_NEXT(lun, links)) { 2827 retval = copyout(&lun->stats, &stats->lun_stats[i], 2828 sizeof(lun->stats)); 2829 if (retval != 0) 2830 break; 2831 } 2832 stats->num_luns = softc->num_luns; 2833 stats->fill_len = sizeof(struct ctl_lun_io_stats) * 2834 softc->num_luns; 2835 stats->status = CTL_SS_OK; 2836#ifdef CTL_TIME_IO 2837 stats->flags = CTL_STATS_FLAG_TIME_VALID; 2838#else 2839 stats->flags = CTL_STATS_FLAG_NONE; 2840#endif 2841 getnanouptime(&stats->timestamp); 2842 break; 2843 } 2844 case CTL_ERROR_INJECT: { 2845 struct ctl_error_desc *err_desc, *new_err_desc; 2846 2847 err_desc = (struct ctl_error_desc *)addr; 2848 2849 new_err_desc = malloc(sizeof(*new_err_desc), M_CTL, 2850 M_WAITOK | M_ZERO); 2851 bcopy(err_desc, new_err_desc, sizeof(*new_err_desc)); 2852 2853 mtx_lock(&softc->ctl_lock); 2854 lun = softc->ctl_luns[err_desc->lun_id]; 2855 if (lun == NULL) { 2856 mtx_unlock(&softc->ctl_lock); 2857 free(new_err_desc, M_CTL); 2858 printf("%s: CTL_ERROR_INJECT: invalid LUN %ju\n", 2859 __func__, (uintmax_t)err_desc->lun_id); 2860 retval = EINVAL; 2861 break; 2862 } 2863 mtx_lock(&lun->lun_lock); 2864 mtx_unlock(&softc->ctl_lock); 2865 2866 /* 2867 * We could do some checking here to verify the validity 2868 * of the request, but given the complexity of error 2869 * injection requests, the checking logic would be fairly 2870 * complex. 2871 * 2872 * For now, if the request is invalid, it just won't get 2873 * executed and might get deleted. 2874 */ 2875 STAILQ_INSERT_TAIL(&lun->error_list, new_err_desc, links); 2876 2877 /* 2878 * XXX KDM check to make sure the serial number is unique, 2879 * in case we somehow manage to wrap. That shouldn't 2880 * happen for a very long time, but it's the right thing to 2881 * do. 2882 */ 2883 new_err_desc->serial = lun->error_serial; 2884 err_desc->serial = lun->error_serial; 2885 lun->error_serial++; 2886 2887 mtx_unlock(&lun->lun_lock); 2888 break; 2889 } 2890 case CTL_ERROR_INJECT_DELETE: { 2891 struct ctl_error_desc *delete_desc, *desc, *desc2; 2892 int delete_done; 2893 2894 delete_desc = (struct ctl_error_desc *)addr; 2895 delete_done = 0; 2896 2897 mtx_lock(&softc->ctl_lock); 2898 lun = softc->ctl_luns[delete_desc->lun_id]; 2899 if (lun == NULL) { 2900 mtx_unlock(&softc->ctl_lock); 2901 printf("%s: CTL_ERROR_INJECT_DELETE: invalid LUN %ju\n", 2902 __func__, (uintmax_t)delete_desc->lun_id); 2903 retval = EINVAL; 2904 break; 2905 } 2906 mtx_lock(&lun->lun_lock); 2907 mtx_unlock(&softc->ctl_lock); 2908 STAILQ_FOREACH_SAFE(desc, &lun->error_list, links, desc2) { 2909 if (desc->serial != delete_desc->serial) 2910 continue; 2911 2912 STAILQ_REMOVE(&lun->error_list, desc, ctl_error_desc, 2913 links); 2914 free(desc, M_CTL); 2915 delete_done = 1; 2916 } 2917 mtx_unlock(&lun->lun_lock); 2918 if (delete_done == 0) { 2919 printf("%s: CTL_ERROR_INJECT_DELETE: can't find " 2920 "error serial %ju on LUN %u\n", __func__, 2921 delete_desc->serial, delete_desc->lun_id); 2922 retval = EINVAL; 2923 break; 2924 } 2925 break; 2926 } 2927 case CTL_DUMP_STRUCTS: { 2928 int i, j, k; 2929 struct ctl_port *port; 2930 struct ctl_frontend *fe; 2931 2932 mtx_lock(&softc->ctl_lock); 2933 printf("CTL Persistent Reservation information start:\n"); 2934 for (i = 0; i < CTL_MAX_LUNS; i++) { 2935 lun = softc->ctl_luns[i]; 2936 2937 if ((lun == NULL) 2938 || ((lun->flags & CTL_LUN_DISABLED) != 0)) 2939 continue; 2940 2941 for (j = 0; j < CTL_MAX_PORTS; j++) { 2942 if (lun->pr_keys[j] == NULL) 2943 continue; 2944 for (k = 0; k < CTL_MAX_INIT_PER_PORT; k++){ 2945 if (lun->pr_keys[j][k] == 0) 2946 continue; 2947 printf(" LUN %d port %d iid %d key " 2948 "%#jx\n", i, j, k, 2949 (uintmax_t)lun->pr_keys[j][k]); 2950 } 2951 } 2952 } 2953 printf("CTL Persistent Reservation information end\n"); 2954 printf("CTL Ports:\n"); 2955 STAILQ_FOREACH(port, &softc->port_list, links) { 2956 printf(" Port %d '%s' Frontend '%s' Type %u pp %d vp %d WWNN " 2957 "%#jx WWPN %#jx\n", port->targ_port, port->port_name, 2958 port->frontend->name, port->port_type, 2959 port->physical_port, port->virtual_port, 2960 (uintmax_t)port->wwnn, (uintmax_t)port->wwpn); 2961 for (j = 0; j < CTL_MAX_INIT_PER_PORT; j++) { 2962 if (port->wwpn_iid[j].in_use == 0 && 2963 port->wwpn_iid[j].wwpn == 0 && 2964 port->wwpn_iid[j].name == NULL) 2965 continue; 2966 2967 printf(" iid %u use %d WWPN %#jx '%s'\n", 2968 j, port->wwpn_iid[j].in_use, 2969 (uintmax_t)port->wwpn_iid[j].wwpn, 2970 port->wwpn_iid[j].name); 2971 } 2972 } 2973 printf("CTL Port information end\n"); 2974 mtx_unlock(&softc->ctl_lock); 2975 /* 2976 * XXX KDM calling this without a lock. We'd likely want 2977 * to drop the lock before calling the frontend's dump 2978 * routine anyway. 2979 */ 2980 printf("CTL Frontends:\n"); 2981 STAILQ_FOREACH(fe, &softc->fe_list, links) { 2982 printf(" Frontend '%s'\n", fe->name); 2983 if (fe->fe_dump != NULL) 2984 fe->fe_dump(); 2985 } 2986 printf("CTL Frontend information end\n"); 2987 break; 2988 } 2989 case CTL_LUN_REQ: { 2990 struct ctl_lun_req *lun_req; 2991 struct ctl_backend_driver *backend; 2992 2993 lun_req = (struct ctl_lun_req *)addr; 2994 2995 backend = ctl_backend_find(lun_req->backend); 2996 if (backend == NULL) { 2997 lun_req->status = CTL_LUN_ERROR; 2998 snprintf(lun_req->error_str, 2999 sizeof(lun_req->error_str), 3000 "Backend \"%s\" not found.", 3001 lun_req->backend); 3002 break; 3003 } 3004 if (lun_req->num_be_args > 0) { 3005 lun_req->kern_be_args = ctl_copyin_args( 3006 lun_req->num_be_args, 3007 lun_req->be_args, 3008 lun_req->error_str, 3009 sizeof(lun_req->error_str)); 3010 if (lun_req->kern_be_args == NULL) { 3011 lun_req->status = CTL_LUN_ERROR; 3012 break; 3013 } 3014 } 3015 3016 retval = backend->ioctl(dev, cmd, addr, flag, td); 3017 3018 if (lun_req->num_be_args > 0) { 3019 ctl_copyout_args(lun_req->num_be_args, 3020 lun_req->kern_be_args); 3021 ctl_free_args(lun_req->num_be_args, 3022 lun_req->kern_be_args); 3023 } 3024 break; 3025 } 3026 case CTL_LUN_LIST: { 3027 struct sbuf *sb; 3028 struct ctl_lun_list *list; 3029 struct ctl_option *opt; 3030 3031 list = (struct ctl_lun_list *)addr; 3032 3033 /* 3034 * Allocate a fixed length sbuf here, based on the length 3035 * of the user's buffer. We could allocate an auto-extending 3036 * buffer, and then tell the user how much larger our 3037 * amount of data is than his buffer, but that presents 3038 * some problems: 3039 * 3040 * 1. The sbuf(9) routines use a blocking malloc, and so 3041 * we can't hold a lock while calling them with an 3042 * auto-extending buffer. 3043 * 3044 * 2. There is not currently a LUN reference counting 3045 * mechanism, outside of outstanding transactions on 3046 * the LUN's OOA queue. So a LUN could go away on us 3047 * while we're getting the LUN number, backend-specific 3048 * information, etc. Thus, given the way things 3049 * currently work, we need to hold the CTL lock while 3050 * grabbing LUN information. 3051 * 3052 * So, from the user's standpoint, the best thing to do is 3053 * allocate what he thinks is a reasonable buffer length, 3054 * and then if he gets a CTL_LUN_LIST_NEED_MORE_SPACE error, 3055 * double the buffer length and try again. (And repeat 3056 * that until he succeeds.) 3057 */ 3058 sb = sbuf_new(NULL, NULL, list->alloc_len, SBUF_FIXEDLEN); 3059 if (sb == NULL) { 3060 list->status = CTL_LUN_LIST_ERROR; 3061 snprintf(list->error_str, sizeof(list->error_str), 3062 "Unable to allocate %d bytes for LUN list", 3063 list->alloc_len); 3064 break; 3065 } 3066 3067 sbuf_printf(sb, "<ctllunlist>\n"); 3068 3069 mtx_lock(&softc->ctl_lock); 3070 STAILQ_FOREACH(lun, &softc->lun_list, links) { 3071 mtx_lock(&lun->lun_lock); 3072 retval = sbuf_printf(sb, "<lun id=\"%ju\">\n", 3073 (uintmax_t)lun->lun); 3074 3075 /* 3076 * Bail out as soon as we see that we've overfilled 3077 * the buffer. 3078 */ 3079 if (retval != 0) 3080 break; 3081 3082 retval = sbuf_printf(sb, "\t<backend_type>%s" 3083 "</backend_type>\n", 3084 (lun->backend == NULL) ? "none" : 3085 lun->backend->name); 3086 3087 if (retval != 0) 3088 break; 3089 3090 retval = sbuf_printf(sb, "\t<lun_type>%d</lun_type>\n", 3091 lun->be_lun->lun_type); 3092 3093 if (retval != 0) 3094 break; 3095 3096 if (lun->backend == NULL) { 3097 retval = sbuf_printf(sb, "</lun>\n"); 3098 if (retval != 0) 3099 break; 3100 continue; 3101 } 3102 3103 retval = sbuf_printf(sb, "\t<size>%ju</size>\n", 3104 (lun->be_lun->maxlba > 0) ? 3105 lun->be_lun->maxlba + 1 : 0); 3106 3107 if (retval != 0) 3108 break; 3109 3110 retval = sbuf_printf(sb, "\t<blocksize>%u</blocksize>\n", 3111 lun->be_lun->blocksize); 3112 3113 if (retval != 0) 3114 break; 3115 3116 retval = sbuf_printf(sb, "\t<serial_number>"); 3117 3118 if (retval != 0) 3119 break; 3120 3121 retval = ctl_sbuf_printf_esc(sb, 3122 lun->be_lun->serial_num, 3123 sizeof(lun->be_lun->serial_num)); 3124 3125 if (retval != 0) 3126 break; 3127 3128 retval = sbuf_printf(sb, "</serial_number>\n"); 3129 3130 if (retval != 0) 3131 break; 3132 3133 retval = sbuf_printf(sb, "\t<device_id>"); 3134 3135 if (retval != 0) 3136 break; 3137 3138 retval = ctl_sbuf_printf_esc(sb, 3139 lun->be_lun->device_id, 3140 sizeof(lun->be_lun->device_id)); 3141 3142 if (retval != 0) 3143 break; 3144 3145 retval = sbuf_printf(sb, "</device_id>\n"); 3146 3147 if (retval != 0) 3148 break; 3149 3150 if (lun->backend->lun_info != NULL) { 3151 retval = lun->backend->lun_info(lun->be_lun->be_lun, sb); 3152 if (retval != 0) 3153 break; 3154 } 3155 STAILQ_FOREACH(opt, &lun->be_lun->options, links) { 3156 retval = sbuf_printf(sb, "\t<%s>%s</%s>\n", 3157 opt->name, opt->value, opt->name); 3158 if (retval != 0) 3159 break; 3160 } 3161 3162 retval = sbuf_printf(sb, "</lun>\n"); 3163 3164 if (retval != 0) 3165 break; 3166 mtx_unlock(&lun->lun_lock); 3167 } 3168 if (lun != NULL) 3169 mtx_unlock(&lun->lun_lock); 3170 mtx_unlock(&softc->ctl_lock); 3171 3172 if ((retval != 0) 3173 || ((retval = sbuf_printf(sb, "</ctllunlist>\n")) != 0)) { 3174 retval = 0; 3175 sbuf_delete(sb); 3176 list->status = CTL_LUN_LIST_NEED_MORE_SPACE; 3177 snprintf(list->error_str, sizeof(list->error_str), 3178 "Out of space, %d bytes is too small", 3179 list->alloc_len); 3180 break; 3181 } 3182 3183 sbuf_finish(sb); 3184 3185 retval = copyout(sbuf_data(sb), list->lun_xml, 3186 sbuf_len(sb) + 1); 3187 3188 list->fill_len = sbuf_len(sb) + 1; 3189 list->status = CTL_LUN_LIST_OK; 3190 sbuf_delete(sb); 3191 break; 3192 } 3193 case CTL_ISCSI: { 3194 struct ctl_iscsi *ci; 3195 struct ctl_frontend *fe; 3196 3197 ci = (struct ctl_iscsi *)addr; 3198 3199 fe = ctl_frontend_find("iscsi"); 3200 if (fe == NULL) { 3201 ci->status = CTL_ISCSI_ERROR; 3202 snprintf(ci->error_str, sizeof(ci->error_str), 3203 "Frontend \"iscsi\" not found."); 3204 break; 3205 } 3206 3207 retval = fe->ioctl(dev, cmd, addr, flag, td); 3208 break; 3209 } 3210 case CTL_PORT_REQ: { 3211 struct ctl_req *req; 3212 struct ctl_frontend *fe; 3213 3214 req = (struct ctl_req *)addr; 3215 3216 fe = ctl_frontend_find(req->driver); 3217 if (fe == NULL) { 3218 req->status = CTL_LUN_ERROR; 3219 snprintf(req->error_str, sizeof(req->error_str), 3220 "Frontend \"%s\" not found.", req->driver); 3221 break; 3222 } 3223 if (req->num_args > 0) { 3224 req->kern_args = ctl_copyin_args(req->num_args, 3225 req->args, req->error_str, sizeof(req->error_str)); 3226 if (req->kern_args == NULL) { 3227 req->status = CTL_LUN_ERROR; 3228 break; 3229 } 3230 } 3231 3232 if (fe->ioctl) 3233 retval = fe->ioctl(dev, cmd, addr, flag, td); 3234 else 3235 retval = ENODEV; 3236 3237 if (req->num_args > 0) { 3238 ctl_copyout_args(req->num_args, req->kern_args); 3239 ctl_free_args(req->num_args, req->kern_args); 3240 } 3241 break; 3242 } 3243 case CTL_PORT_LIST: { 3244 struct sbuf *sb; 3245 struct ctl_port *port; 3246 struct ctl_lun_list *list; 3247 struct ctl_option *opt; 3248 int j; 3249 uint32_t plun; 3250 3251 list = (struct ctl_lun_list *)addr; 3252 3253 sb = sbuf_new(NULL, NULL, list->alloc_len, SBUF_FIXEDLEN); 3254 if (sb == NULL) { 3255 list->status = CTL_LUN_LIST_ERROR; 3256 snprintf(list->error_str, sizeof(list->error_str), 3257 "Unable to allocate %d bytes for LUN list", 3258 list->alloc_len); 3259 break; 3260 } 3261 3262 sbuf_printf(sb, "<ctlportlist>\n"); 3263 3264 mtx_lock(&softc->ctl_lock); 3265 STAILQ_FOREACH(port, &softc->port_list, links) { 3266 retval = sbuf_printf(sb, "<targ_port id=\"%ju\">\n", 3267 (uintmax_t)port->targ_port); 3268 3269 /* 3270 * Bail out as soon as we see that we've overfilled 3271 * the buffer. 3272 */ 3273 if (retval != 0) 3274 break; 3275 3276 retval = sbuf_printf(sb, "\t<frontend_type>%s" 3277 "</frontend_type>\n", port->frontend->name); 3278 if (retval != 0) 3279 break; 3280 3281 retval = sbuf_printf(sb, "\t<port_type>%d</port_type>\n", 3282 port->port_type); 3283 if (retval != 0) 3284 break; 3285 3286 retval = sbuf_printf(sb, "\t<online>%s</online>\n", 3287 (port->status & CTL_PORT_STATUS_ONLINE) ? "YES" : "NO"); 3288 if (retval != 0) 3289 break; 3290 3291 retval = sbuf_printf(sb, "\t<port_name>%s</port_name>\n", 3292 port->port_name); 3293 if (retval != 0) 3294 break; 3295 3296 retval = sbuf_printf(sb, "\t<physical_port>%d</physical_port>\n", 3297 port->physical_port); 3298 if (retval != 0) 3299 break; 3300 3301 retval = sbuf_printf(sb, "\t<virtual_port>%d</virtual_port>\n", 3302 port->virtual_port); 3303 if (retval != 0) 3304 break; 3305 3306 if (port->target_devid != NULL) { 3307 sbuf_printf(sb, "\t<target>"); 3308 ctl_id_sbuf(port->target_devid, sb); 3309 sbuf_printf(sb, "</target>\n"); 3310 } 3311 3312 if (port->port_devid != NULL) { 3313 sbuf_printf(sb, "\t<port>"); 3314 ctl_id_sbuf(port->port_devid, sb); 3315 sbuf_printf(sb, "</port>\n"); 3316 } 3317 3318 if (port->port_info != NULL) { 3319 retval = port->port_info(port->onoff_arg, sb); 3320 if (retval != 0) 3321 break; 3322 } 3323 STAILQ_FOREACH(opt, &port->options, links) { 3324 retval = sbuf_printf(sb, "\t<%s>%s</%s>\n", 3325 opt->name, opt->value, opt->name); 3326 if (retval != 0) 3327 break; 3328 } 3329 3330 if (port->lun_map != NULL) { 3331 sbuf_printf(sb, "\t<lun_map>on</lun_map>\n"); 3332 for (j = 0; j < CTL_MAX_LUNS; j++) { 3333 plun = ctl_lun_map_from_port(port, j); 3334 if (plun >= CTL_MAX_LUNS) 3335 continue; 3336 sbuf_printf(sb, 3337 "\t<lun id=\"%u\">%u</lun>\n", 3338 j, plun); 3339 } 3340 } 3341 3342 for (j = 0; j < CTL_MAX_INIT_PER_PORT; j++) { 3343 if (port->wwpn_iid[j].in_use == 0 || 3344 (port->wwpn_iid[j].wwpn == 0 && 3345 port->wwpn_iid[j].name == NULL)) 3346 continue; 3347 3348 if (port->wwpn_iid[j].name != NULL) 3349 retval = sbuf_printf(sb, 3350 "\t<initiator id=\"%u\">%s</initiator>\n", 3351 j, port->wwpn_iid[j].name); 3352 else 3353 retval = sbuf_printf(sb, 3354 "\t<initiator id=\"%u\">naa.%08jx</initiator>\n", 3355 j, port->wwpn_iid[j].wwpn); 3356 if (retval != 0) 3357 break; 3358 } 3359 if (retval != 0) 3360 break; 3361 3362 retval = sbuf_printf(sb, "</targ_port>\n"); 3363 if (retval != 0) 3364 break; 3365 } 3366 mtx_unlock(&softc->ctl_lock); 3367 3368 if ((retval != 0) 3369 || ((retval = sbuf_printf(sb, "</ctlportlist>\n")) != 0)) { 3370 retval = 0; 3371 sbuf_delete(sb); 3372 list->status = CTL_LUN_LIST_NEED_MORE_SPACE; 3373 snprintf(list->error_str, sizeof(list->error_str), 3374 "Out of space, %d bytes is too small", 3375 list->alloc_len); 3376 break; 3377 } 3378 3379 sbuf_finish(sb); 3380 3381 retval = copyout(sbuf_data(sb), list->lun_xml, 3382 sbuf_len(sb) + 1); 3383 3384 list->fill_len = sbuf_len(sb) + 1; 3385 list->status = CTL_LUN_LIST_OK; 3386 sbuf_delete(sb); 3387 break; 3388 } 3389 case CTL_LUN_MAP: { 3390 struct ctl_lun_map *lm = (struct ctl_lun_map *)addr; 3391 struct ctl_port *port; 3392 3393 mtx_lock(&softc->ctl_lock); 3394 if (lm->port < softc->port_min || 3395 lm->port >= softc->port_max || 3396 (port = softc->ctl_ports[lm->port]) == NULL) { 3397 mtx_unlock(&softc->ctl_lock); 3398 return (ENXIO); 3399 } 3400 if (port->status & CTL_PORT_STATUS_ONLINE) { 3401 STAILQ_FOREACH(lun, &softc->lun_list, links) { 3402 if (ctl_lun_map_to_port(port, lun->lun) >= 3403 CTL_MAX_LUNS) 3404 continue; 3405 mtx_lock(&lun->lun_lock); 3406 ctl_est_ua_port(lun, lm->port, -1, 3407 CTL_UA_LUN_CHANGE); 3408 mtx_unlock(&lun->lun_lock); 3409 } 3410 } 3411 mtx_unlock(&softc->ctl_lock); // XXX: port_enable sleeps 3412 if (lm->plun < CTL_MAX_LUNS) { 3413 if (lm->lun == UINT32_MAX) 3414 retval = ctl_lun_map_unset(port, lm->plun); 3415 else if (lm->lun < CTL_MAX_LUNS && 3416 softc->ctl_luns[lm->lun] != NULL) 3417 retval = ctl_lun_map_set(port, lm->plun, lm->lun); 3418 else 3419 return (ENXIO); 3420 } else if (lm->plun == UINT32_MAX) { 3421 if (lm->lun == UINT32_MAX) 3422 retval = ctl_lun_map_deinit(port); 3423 else 3424 retval = ctl_lun_map_init(port); 3425 } else 3426 return (ENXIO); 3427 if (port->status & CTL_PORT_STATUS_ONLINE) 3428 ctl_isc_announce_port(port); 3429 break; 3430 } 3431 default: { 3432 /* XXX KDM should we fix this? */ 3433#if 0 3434 struct ctl_backend_driver *backend; 3435 unsigned int type; 3436 int found; 3437 3438 found = 0; 3439 3440 /* 3441 * We encode the backend type as the ioctl type for backend 3442 * ioctls. So parse it out here, and then search for a 3443 * backend of this type. 3444 */ 3445 type = _IOC_TYPE(cmd); 3446 3447 STAILQ_FOREACH(backend, &softc->be_list, links) { 3448 if (backend->type == type) { 3449 found = 1; 3450 break; 3451 } 3452 } 3453 if (found == 0) { 3454 printf("ctl: unknown ioctl command %#lx or backend " 3455 "%d\n", cmd, type); 3456 retval = EINVAL; 3457 break; 3458 } 3459 retval = backend->ioctl(dev, cmd, addr, flag, td); 3460#endif 3461 retval = ENOTTY; 3462 break; 3463 } 3464 } 3465 return (retval); 3466} 3467 3468uint32_t 3469ctl_get_initindex(struct ctl_nexus *nexus) 3470{ 3471 return (nexus->initid + (nexus->targ_port * CTL_MAX_INIT_PER_PORT)); 3472} 3473 3474int 3475ctl_lun_map_init(struct ctl_port *port) 3476{ 3477 struct ctl_softc *softc = port->ctl_softc; 3478 struct ctl_lun *lun; 3479 uint32_t i; 3480 3481 if (port->lun_map == NULL) 3482 port->lun_map = malloc(sizeof(uint32_t) * CTL_MAX_LUNS, 3483 M_CTL, M_NOWAIT); 3484 if (port->lun_map == NULL) 3485 return (ENOMEM); 3486 for (i = 0; i < CTL_MAX_LUNS; i++) 3487 port->lun_map[i] = UINT32_MAX; 3488 if (port->status & CTL_PORT_STATUS_ONLINE) { 3489 if (port->lun_disable != NULL) { 3490 STAILQ_FOREACH(lun, &softc->lun_list, links) 3491 port->lun_disable(port->targ_lun_arg, lun->lun); 3492 } 3493 ctl_isc_announce_port(port); 3494 } 3495 return (0); 3496} 3497 3498int 3499ctl_lun_map_deinit(struct ctl_port *port) 3500{ 3501 struct ctl_softc *softc = port->ctl_softc; 3502 struct ctl_lun *lun; 3503 3504 if (port->lun_map == NULL) 3505 return (0); 3506 free(port->lun_map, M_CTL); 3507 port->lun_map = NULL; 3508 if (port->status & CTL_PORT_STATUS_ONLINE) { 3509 if (port->lun_enable != NULL) { 3510 STAILQ_FOREACH(lun, &softc->lun_list, links) 3511 port->lun_enable(port->targ_lun_arg, lun->lun); 3512 } 3513 ctl_isc_announce_port(port); 3514 } 3515 return (0); 3516} 3517 3518int 3519ctl_lun_map_set(struct ctl_port *port, uint32_t plun, uint32_t glun) 3520{ 3521 int status; 3522 uint32_t old; 3523 3524 if (port->lun_map == NULL) { 3525 status = ctl_lun_map_init(port); 3526 if (status != 0) 3527 return (status); 3528 } 3529 old = port->lun_map[plun]; 3530 port->lun_map[plun] = glun; 3531 if ((port->status & CTL_PORT_STATUS_ONLINE) && old >= CTL_MAX_LUNS) { 3532 if (port->lun_enable != NULL) 3533 port->lun_enable(port->targ_lun_arg, plun); 3534 ctl_isc_announce_port(port); 3535 } 3536 return (0); 3537} 3538 3539int 3540ctl_lun_map_unset(struct ctl_port *port, uint32_t plun) 3541{ 3542 uint32_t old; 3543 3544 if (port->lun_map == NULL) 3545 return (0); 3546 old = port->lun_map[plun]; 3547 port->lun_map[plun] = UINT32_MAX; 3548 if ((port->status & CTL_PORT_STATUS_ONLINE) && old < CTL_MAX_LUNS) { 3549 if (port->lun_disable != NULL) 3550 port->lun_disable(port->targ_lun_arg, plun); 3551 ctl_isc_announce_port(port); 3552 } 3553 return (0); 3554} 3555 3556uint32_t 3557ctl_lun_map_from_port(struct ctl_port *port, uint32_t lun_id) 3558{ 3559 3560 if (port == NULL) 3561 return (UINT32_MAX); 3562 if (port->lun_map == NULL || lun_id >= CTL_MAX_LUNS) 3563 return (lun_id); 3564 return (port->lun_map[lun_id]); 3565} 3566 3567uint32_t 3568ctl_lun_map_to_port(struct ctl_port *port, uint32_t lun_id) 3569{ 3570 uint32_t i; 3571 3572 if (port == NULL) 3573 return (UINT32_MAX); 3574 if (port->lun_map == NULL) 3575 return (lun_id); 3576 for (i = 0; i < CTL_MAX_LUNS; i++) { 3577 if (port->lun_map[i] == lun_id) 3578 return (i); 3579 } 3580 return (UINT32_MAX); 3581} 3582 3583static struct ctl_port * 3584ctl_io_port(struct ctl_io_hdr *io_hdr) 3585{ 3586 3587 return (control_softc->ctl_ports[io_hdr->nexus.targ_port]); 3588} 3589 3590int 3591ctl_ffz(uint32_t *mask, uint32_t first, uint32_t last) 3592{ 3593 int i; 3594 3595 for (i = first; i < last; i++) { 3596 if ((mask[i / 32] & (1 << (i % 32))) == 0) 3597 return (i); 3598 } 3599 return (-1); 3600} 3601 3602int 3603ctl_set_mask(uint32_t *mask, uint32_t bit) 3604{ 3605 uint32_t chunk, piece; 3606 3607 chunk = bit >> 5; 3608 piece = bit % (sizeof(uint32_t) * 8); 3609 3610 if ((mask[chunk] & (1 << piece)) != 0) 3611 return (-1); 3612 else 3613 mask[chunk] |= (1 << piece); 3614 3615 return (0); 3616} 3617 3618int 3619ctl_clear_mask(uint32_t *mask, uint32_t bit) 3620{ 3621 uint32_t chunk, piece; 3622 3623 chunk = bit >> 5; 3624 piece = bit % (sizeof(uint32_t) * 8); 3625 3626 if ((mask[chunk] & (1 << piece)) == 0) 3627 return (-1); 3628 else 3629 mask[chunk] &= ~(1 << piece); 3630 3631 return (0); 3632} 3633 3634int 3635ctl_is_set(uint32_t *mask, uint32_t bit) 3636{ 3637 uint32_t chunk, piece; 3638 3639 chunk = bit >> 5; 3640 piece = bit % (sizeof(uint32_t) * 8); 3641 3642 if ((mask[chunk] & (1 << piece)) == 0) 3643 return (0); 3644 else 3645 return (1); 3646} 3647 3648static uint64_t 3649ctl_get_prkey(struct ctl_lun *lun, uint32_t residx) 3650{ 3651 uint64_t *t; 3652 3653 t = lun->pr_keys[residx/CTL_MAX_INIT_PER_PORT]; 3654 if (t == NULL) 3655 return (0); 3656 return (t[residx % CTL_MAX_INIT_PER_PORT]); 3657} 3658 3659static void 3660ctl_clr_prkey(struct ctl_lun *lun, uint32_t residx) 3661{ 3662 uint64_t *t; 3663 3664 t = lun->pr_keys[residx/CTL_MAX_INIT_PER_PORT]; 3665 if (t == NULL) 3666 return; 3667 t[residx % CTL_MAX_INIT_PER_PORT] = 0; 3668} 3669 3670static void 3671ctl_alloc_prkey(struct ctl_lun *lun, uint32_t residx) 3672{ 3673 uint64_t *p; 3674 u_int i; 3675 3676 i = residx/CTL_MAX_INIT_PER_PORT; 3677 if (lun->pr_keys[i] != NULL) 3678 return; 3679 mtx_unlock(&lun->lun_lock); 3680 p = malloc(sizeof(uint64_t) * CTL_MAX_INIT_PER_PORT, M_CTL, 3681 M_WAITOK | M_ZERO); 3682 mtx_lock(&lun->lun_lock); 3683 if (lun->pr_keys[i] == NULL) 3684 lun->pr_keys[i] = p; 3685 else 3686 free(p, M_CTL); 3687} 3688 3689static void 3690ctl_set_prkey(struct ctl_lun *lun, uint32_t residx, uint64_t key) 3691{ 3692 uint64_t *t; 3693 3694 t = lun->pr_keys[residx/CTL_MAX_INIT_PER_PORT]; 3695 KASSERT(t != NULL, ("prkey %d is not allocated", residx)); 3696 t[residx % CTL_MAX_INIT_PER_PORT] = key; 3697} 3698 3699/* 3700 * ctl_softc, pool_name, total_ctl_io are passed in. 3701 * npool is passed out. 3702 */ 3703int 3704ctl_pool_create(struct ctl_softc *ctl_softc, const char *pool_name, 3705 uint32_t total_ctl_io, void **npool) 3706{ 3707#ifdef IO_POOLS 3708 struct ctl_io_pool *pool; 3709 3710 pool = (struct ctl_io_pool *)malloc(sizeof(*pool), M_CTL, 3711 M_NOWAIT | M_ZERO); 3712 if (pool == NULL) 3713 return (ENOMEM); 3714 3715 snprintf(pool->name, sizeof(pool->name), "CTL IO %s", pool_name); 3716 pool->ctl_softc = ctl_softc; 3717 pool->zone = uma_zsecond_create(pool->name, NULL, 3718 NULL, NULL, NULL, ctl_softc->io_zone); 3719 /* uma_prealloc(pool->zone, total_ctl_io); */ 3720 3721 *npool = pool; 3722#else 3723 *npool = ctl_softc->io_zone; 3724#endif 3725 return (0); 3726} 3727 3728void 3729ctl_pool_free(struct ctl_io_pool *pool) 3730{ 3731 3732 if (pool == NULL) 3733 return; 3734 3735#ifdef IO_POOLS 3736 uma_zdestroy(pool->zone); 3737 free(pool, M_CTL); 3738#endif 3739} 3740 3741union ctl_io * 3742ctl_alloc_io(void *pool_ref) 3743{ 3744 union ctl_io *io; 3745#ifdef IO_POOLS 3746 struct ctl_io_pool *pool = (struct ctl_io_pool *)pool_ref; 3747 3748 io = uma_zalloc(pool->zone, M_WAITOK); 3749#else 3750 io = uma_zalloc((uma_zone_t)pool_ref, M_WAITOK); 3751#endif 3752 if (io != NULL) 3753 io->io_hdr.pool = pool_ref; 3754 return (io); 3755} 3756 3757union ctl_io * 3758ctl_alloc_io_nowait(void *pool_ref) 3759{ 3760 union ctl_io *io; 3761#ifdef IO_POOLS 3762 struct ctl_io_pool *pool = (struct ctl_io_pool *)pool_ref; 3763 3764 io = uma_zalloc(pool->zone, M_NOWAIT); 3765#else 3766 io = uma_zalloc((uma_zone_t)pool_ref, M_NOWAIT); 3767#endif 3768 if (io != NULL) 3769 io->io_hdr.pool = pool_ref; 3770 return (io); 3771} 3772 3773void 3774ctl_free_io(union ctl_io *io) 3775{ 3776#ifdef IO_POOLS 3777 struct ctl_io_pool *pool; 3778#endif 3779 3780 if (io == NULL) 3781 return; 3782 3783#ifdef IO_POOLS 3784 pool = (struct ctl_io_pool *)io->io_hdr.pool; 3785 uma_zfree(pool->zone, io); 3786#else 3787 uma_zfree((uma_zone_t)io->io_hdr.pool, io); 3788#endif 3789} 3790 3791void 3792ctl_zero_io(union ctl_io *io) 3793{ 3794 void *pool_ref; 3795 3796 if (io == NULL) 3797 return; 3798 3799 /* 3800 * May need to preserve linked list pointers at some point too. 3801 */ 3802 pool_ref = io->io_hdr.pool; 3803 memset(io, 0, sizeof(*io)); 3804 io->io_hdr.pool = pool_ref; 3805} 3806 3807/* 3808 * This routine is currently used for internal copies of ctl_ios that need 3809 * to persist for some reason after we've already returned status to the 3810 * FETD. (Thus the flag set.) 3811 * 3812 * XXX XXX 3813 * Note that this makes a blind copy of all fields in the ctl_io, except 3814 * for the pool reference. This includes any memory that has been 3815 * allocated! That memory will no longer be valid after done has been 3816 * called, so this would be VERY DANGEROUS for command that actually does 3817 * any reads or writes. Right now (11/7/2005), this is only used for immediate 3818 * start and stop commands, which don't transfer any data, so this is not a 3819 * problem. If it is used for anything else, the caller would also need to 3820 * allocate data buffer space and this routine would need to be modified to 3821 * copy the data buffer(s) as well. 3822 */ 3823void 3824ctl_copy_io(union ctl_io *src, union ctl_io *dest) 3825{ 3826 void *pool_ref; 3827 3828 if ((src == NULL) 3829 || (dest == NULL)) 3830 return; 3831 3832 /* 3833 * May need to preserve linked list pointers at some point too. 3834 */ 3835 pool_ref = dest->io_hdr.pool; 3836 3837 memcpy(dest, src, MIN(sizeof(*src), sizeof(*dest))); 3838 3839 dest->io_hdr.pool = pool_ref; 3840 /* 3841 * We need to know that this is an internal copy, and doesn't need 3842 * to get passed back to the FETD that allocated it. 3843 */ 3844 dest->io_hdr.flags |= CTL_FLAG_INT_COPY; 3845} 3846 3847int 3848ctl_expand_number(const char *buf, uint64_t *num) 3849{ 3850 char *endptr; 3851 uint64_t number; 3852 unsigned shift; 3853 3854 number = strtoq(buf, &endptr, 0); 3855 3856 switch (tolower((unsigned char)*endptr)) { 3857 case 'e': 3858 shift = 60; 3859 break; 3860 case 'p': 3861 shift = 50; 3862 break; 3863 case 't': 3864 shift = 40; 3865 break; 3866 case 'g': 3867 shift = 30; 3868 break; 3869 case 'm': 3870 shift = 20; 3871 break; 3872 case 'k': 3873 shift = 10; 3874 break; 3875 case 'b': 3876 case '\0': /* No unit. */ 3877 *num = number; 3878 return (0); 3879 default: 3880 /* Unrecognized unit. */ 3881 return (-1); 3882 } 3883 3884 if ((number << shift) >> shift != number) { 3885 /* Overflow */ 3886 return (-1); 3887 } 3888 *num = number << shift; 3889 return (0); 3890} 3891 3892 3893/* 3894 * This routine could be used in the future to load default and/or saved 3895 * mode page parameters for a particuar lun. 3896 */ 3897static int 3898ctl_init_page_index(struct ctl_lun *lun) 3899{ 3900 int i; 3901 struct ctl_page_index *page_index; 3902 const char *value; 3903 uint64_t ival; 3904 3905 memcpy(&lun->mode_pages.index, page_index_template, 3906 sizeof(page_index_template)); 3907 3908 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 3909 3910 page_index = &lun->mode_pages.index[i]; 3911 /* 3912 * If this is a disk-only mode page, there's no point in 3913 * setting it up. For some pages, we have to have some 3914 * basic information about the disk in order to calculate the 3915 * mode page data. 3916 */ 3917 if ((lun->be_lun->lun_type != T_DIRECT) 3918 && (page_index->page_flags & CTL_PAGE_FLAG_DISK_ONLY)) 3919 continue; 3920 3921 switch (page_index->page_code & SMPH_PC_MASK) { 3922 case SMS_RW_ERROR_RECOVERY_PAGE: { 3923 if (page_index->subpage != SMS_SUBPAGE_PAGE_0) 3924 panic("subpage is incorrect!"); 3925 memcpy(&lun->mode_pages.rw_er_page[CTL_PAGE_CURRENT], 3926 &rw_er_page_default, 3927 sizeof(rw_er_page_default)); 3928 memcpy(&lun->mode_pages.rw_er_page[CTL_PAGE_CHANGEABLE], 3929 &rw_er_page_changeable, 3930 sizeof(rw_er_page_changeable)); 3931 memcpy(&lun->mode_pages.rw_er_page[CTL_PAGE_DEFAULT], 3932 &rw_er_page_default, 3933 sizeof(rw_er_page_default)); 3934 memcpy(&lun->mode_pages.rw_er_page[CTL_PAGE_SAVED], 3935 &rw_er_page_default, 3936 sizeof(rw_er_page_default)); 3937 page_index->page_data = 3938 (uint8_t *)lun->mode_pages.rw_er_page; 3939 break; 3940 } 3941 case SMS_FORMAT_DEVICE_PAGE: { 3942 struct scsi_format_page *format_page; 3943 3944 if (page_index->subpage != SMS_SUBPAGE_PAGE_0) 3945 panic("subpage is incorrect!"); 3946 3947 /* 3948 * Sectors per track are set above. Bytes per 3949 * sector need to be set here on a per-LUN basis. 3950 */ 3951 memcpy(&lun->mode_pages.format_page[CTL_PAGE_CURRENT], 3952 &format_page_default, 3953 sizeof(format_page_default)); 3954 memcpy(&lun->mode_pages.format_page[ 3955 CTL_PAGE_CHANGEABLE], &format_page_changeable, 3956 sizeof(format_page_changeable)); 3957 memcpy(&lun->mode_pages.format_page[CTL_PAGE_DEFAULT], 3958 &format_page_default, 3959 sizeof(format_page_default)); 3960 memcpy(&lun->mode_pages.format_page[CTL_PAGE_SAVED], 3961 &format_page_default, 3962 sizeof(format_page_default)); 3963 3964 format_page = &lun->mode_pages.format_page[ 3965 CTL_PAGE_CURRENT]; 3966 scsi_ulto2b(lun->be_lun->blocksize, 3967 format_page->bytes_per_sector); 3968 3969 format_page = &lun->mode_pages.format_page[ 3970 CTL_PAGE_DEFAULT]; 3971 scsi_ulto2b(lun->be_lun->blocksize, 3972 format_page->bytes_per_sector); 3973 3974 format_page = &lun->mode_pages.format_page[ 3975 CTL_PAGE_SAVED]; 3976 scsi_ulto2b(lun->be_lun->blocksize, 3977 format_page->bytes_per_sector); 3978 3979 page_index->page_data = 3980 (uint8_t *)lun->mode_pages.format_page; 3981 break; 3982 } 3983 case SMS_RIGID_DISK_PAGE: { 3984 struct scsi_rigid_disk_page *rigid_disk_page; 3985 uint32_t sectors_per_cylinder; 3986 uint64_t cylinders; 3987#ifndef __XSCALE__ 3988 int shift; 3989#endif /* !__XSCALE__ */ 3990 3991 if (page_index->subpage != SMS_SUBPAGE_PAGE_0) 3992 panic("invalid subpage value %d", 3993 page_index->subpage); 3994 3995 /* 3996 * Rotation rate and sectors per track are set 3997 * above. We calculate the cylinders here based on 3998 * capacity. Due to the number of heads and 3999 * sectors per track we're using, smaller arrays 4000 * may turn out to have 0 cylinders. Linux and 4001 * FreeBSD don't pay attention to these mode pages 4002 * to figure out capacity, but Solaris does. It 4003 * seems to deal with 0 cylinders just fine, and 4004 * works out a fake geometry based on the capacity. 4005 */ 4006 memcpy(&lun->mode_pages.rigid_disk_page[ 4007 CTL_PAGE_DEFAULT], &rigid_disk_page_default, 4008 sizeof(rigid_disk_page_default)); 4009 memcpy(&lun->mode_pages.rigid_disk_page[ 4010 CTL_PAGE_CHANGEABLE],&rigid_disk_page_changeable, 4011 sizeof(rigid_disk_page_changeable)); 4012 4013 sectors_per_cylinder = CTL_DEFAULT_SECTORS_PER_TRACK * 4014 CTL_DEFAULT_HEADS; 4015 4016 /* 4017 * The divide method here will be more accurate, 4018 * probably, but results in floating point being 4019 * used in the kernel on i386 (__udivdi3()). On the 4020 * XScale, though, __udivdi3() is implemented in 4021 * software. 4022 * 4023 * The shift method for cylinder calculation is 4024 * accurate if sectors_per_cylinder is a power of 4025 * 2. Otherwise it might be slightly off -- you 4026 * might have a bit of a truncation problem. 4027 */ 4028#ifdef __XSCALE__ 4029 cylinders = (lun->be_lun->maxlba + 1) / 4030 sectors_per_cylinder; 4031#else 4032 for (shift = 31; shift > 0; shift--) { 4033 if (sectors_per_cylinder & (1 << shift)) 4034 break; 4035 } 4036 cylinders = (lun->be_lun->maxlba + 1) >> shift; 4037#endif 4038 4039 /* 4040 * We've basically got 3 bytes, or 24 bits for the 4041 * cylinder size in the mode page. If we're over, 4042 * just round down to 2^24. 4043 */ 4044 if (cylinders > 0xffffff) 4045 cylinders = 0xffffff; 4046 4047 rigid_disk_page = &lun->mode_pages.rigid_disk_page[ 4048 CTL_PAGE_DEFAULT]; 4049 scsi_ulto3b(cylinders, rigid_disk_page->cylinders); 4050 4051 if ((value = ctl_get_opt(&lun->be_lun->options, 4052 "rpm")) != NULL) { 4053 scsi_ulto2b(strtol(value, NULL, 0), 4054 rigid_disk_page->rotation_rate); 4055 } 4056 4057 memcpy(&lun->mode_pages.rigid_disk_page[CTL_PAGE_CURRENT], 4058 &lun->mode_pages.rigid_disk_page[CTL_PAGE_DEFAULT], 4059 sizeof(rigid_disk_page_default)); 4060 memcpy(&lun->mode_pages.rigid_disk_page[CTL_PAGE_SAVED], 4061 &lun->mode_pages.rigid_disk_page[CTL_PAGE_DEFAULT], 4062 sizeof(rigid_disk_page_default)); 4063 4064 page_index->page_data = 4065 (uint8_t *)lun->mode_pages.rigid_disk_page; 4066 break; 4067 } 4068 case SMS_CACHING_PAGE: { 4069 struct scsi_caching_page *caching_page; 4070 4071 if (page_index->subpage != SMS_SUBPAGE_PAGE_0) 4072 panic("invalid subpage value %d", 4073 page_index->subpage); 4074 memcpy(&lun->mode_pages.caching_page[CTL_PAGE_DEFAULT], 4075 &caching_page_default, 4076 sizeof(caching_page_default)); 4077 memcpy(&lun->mode_pages.caching_page[ 4078 CTL_PAGE_CHANGEABLE], &caching_page_changeable, 4079 sizeof(caching_page_changeable)); 4080 memcpy(&lun->mode_pages.caching_page[CTL_PAGE_SAVED], 4081 &caching_page_default, 4082 sizeof(caching_page_default)); 4083 caching_page = &lun->mode_pages.caching_page[ 4084 CTL_PAGE_SAVED]; 4085 value = ctl_get_opt(&lun->be_lun->options, "writecache"); 4086 if (value != NULL && strcmp(value, "off") == 0) 4087 caching_page->flags1 &= ~SCP_WCE; 4088 value = ctl_get_opt(&lun->be_lun->options, "readcache"); 4089 if (value != NULL && strcmp(value, "off") == 0) 4090 caching_page->flags1 |= SCP_RCD; 4091 memcpy(&lun->mode_pages.caching_page[CTL_PAGE_CURRENT], 4092 &lun->mode_pages.caching_page[CTL_PAGE_SAVED], 4093 sizeof(caching_page_default)); 4094 page_index->page_data = 4095 (uint8_t *)lun->mode_pages.caching_page; 4096 break; 4097 } 4098 case SMS_CONTROL_MODE_PAGE: { 4099 switch (page_index->subpage) { 4100 case SMS_SUBPAGE_PAGE_0: { 4101 struct scsi_control_page *control_page; 4102 4103 memcpy(&lun->mode_pages.control_page[ 4104 CTL_PAGE_DEFAULT], 4105 &control_page_default, 4106 sizeof(control_page_default)); 4107 memcpy(&lun->mode_pages.control_page[ 4108 CTL_PAGE_CHANGEABLE], 4109 &control_page_changeable, 4110 sizeof(control_page_changeable)); 4111 memcpy(&lun->mode_pages.control_page[ 4112 CTL_PAGE_SAVED], 4113 &control_page_default, 4114 sizeof(control_page_default)); 4115 control_page = &lun->mode_pages.control_page[ 4116 CTL_PAGE_SAVED]; 4117 value = ctl_get_opt(&lun->be_lun->options, 4118 "reordering"); 4119 if (value != NULL && 4120 strcmp(value, "unrestricted") == 0) { 4121 control_page->queue_flags &= 4122 ~SCP_QUEUE_ALG_MASK; 4123 control_page->queue_flags |= 4124 SCP_QUEUE_ALG_UNRESTRICTED; 4125 } 4126 memcpy(&lun->mode_pages.control_page[ 4127 CTL_PAGE_CURRENT], 4128 &lun->mode_pages.control_page[ 4129 CTL_PAGE_SAVED], 4130 sizeof(control_page_default)); 4131 page_index->page_data = 4132 (uint8_t *)lun->mode_pages.control_page; 4133 break; 4134 } 4135 case 0x01: 4136 memcpy(&lun->mode_pages.control_ext_page[ 4137 CTL_PAGE_DEFAULT], 4138 &control_ext_page_default, 4139 sizeof(control_ext_page_default)); 4140 memcpy(&lun->mode_pages.control_ext_page[ 4141 CTL_PAGE_CHANGEABLE], 4142 &control_ext_page_changeable, 4143 sizeof(control_ext_page_changeable)); 4144 memcpy(&lun->mode_pages.control_ext_page[ 4145 CTL_PAGE_SAVED], 4146 &control_ext_page_default, 4147 sizeof(control_ext_page_default)); 4148 memcpy(&lun->mode_pages.control_ext_page[ 4149 CTL_PAGE_CURRENT], 4150 &lun->mode_pages.control_ext_page[ 4151 CTL_PAGE_SAVED], 4152 sizeof(control_ext_page_default)); 4153 page_index->page_data = 4154 (uint8_t *)lun->mode_pages.control_ext_page; 4155 break; 4156 } 4157 break; 4158 } 4159 case SMS_INFO_EXCEPTIONS_PAGE: { 4160 switch (page_index->subpage) { 4161 case SMS_SUBPAGE_PAGE_0: 4162 memcpy(&lun->mode_pages.ie_page[CTL_PAGE_CURRENT], 4163 &ie_page_default, 4164 sizeof(ie_page_default)); 4165 memcpy(&lun->mode_pages.ie_page[ 4166 CTL_PAGE_CHANGEABLE], &ie_page_changeable, 4167 sizeof(ie_page_changeable)); 4168 memcpy(&lun->mode_pages.ie_page[CTL_PAGE_DEFAULT], 4169 &ie_page_default, 4170 sizeof(ie_page_default)); 4171 memcpy(&lun->mode_pages.ie_page[CTL_PAGE_SAVED], 4172 &ie_page_default, 4173 sizeof(ie_page_default)); 4174 page_index->page_data = 4175 (uint8_t *)lun->mode_pages.ie_page; 4176 break; 4177 case 0x02: { 4178 struct ctl_logical_block_provisioning_page *page; 4179 4180 memcpy(&lun->mode_pages.lbp_page[CTL_PAGE_DEFAULT], 4181 &lbp_page_default, 4182 sizeof(lbp_page_default)); 4183 memcpy(&lun->mode_pages.lbp_page[ 4184 CTL_PAGE_CHANGEABLE], &lbp_page_changeable, 4185 sizeof(lbp_page_changeable)); 4186 memcpy(&lun->mode_pages.lbp_page[CTL_PAGE_SAVED], 4187 &lbp_page_default, 4188 sizeof(lbp_page_default)); 4189 page = &lun->mode_pages.lbp_page[CTL_PAGE_SAVED]; 4190 value = ctl_get_opt(&lun->be_lun->options, 4191 "avail-threshold"); 4192 if (value != NULL && 4193 ctl_expand_number(value, &ival) == 0) { 4194 page->descr[0].flags |= SLBPPD_ENABLED | 4195 SLBPPD_ARMING_DEC; 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[0].count); 4202 } 4203 value = ctl_get_opt(&lun->be_lun->options, 4204 "used-threshold"); 4205 if (value != NULL && 4206 ctl_expand_number(value, &ival) == 0) { 4207 page->descr[1].flags |= SLBPPD_ENABLED | 4208 SLBPPD_ARMING_INC; 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[1].count); 4215 } 4216 value = ctl_get_opt(&lun->be_lun->options, 4217 "pool-avail-threshold"); 4218 if (value != NULL && 4219 ctl_expand_number(value, &ival) == 0) { 4220 page->descr[2].flags |= SLBPPD_ENABLED | 4221 SLBPPD_ARMING_DEC; 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[2].count); 4228 } 4229 value = ctl_get_opt(&lun->be_lun->options, 4230 "pool-used-threshold"); 4231 if (value != NULL && 4232 ctl_expand_number(value, &ival) == 0) { 4233 page->descr[3].flags |= SLBPPD_ENABLED | 4234 SLBPPD_ARMING_INC; 4235 if (lun->be_lun->blocksize) 4236 ival /= lun->be_lun->blocksize; 4237 else 4238 ival /= 512; 4239 scsi_ulto4b(ival >> CTL_LBP_EXPONENT, 4240 page->descr[3].count); 4241 } 4242 memcpy(&lun->mode_pages.lbp_page[CTL_PAGE_CURRENT], 4243 &lun->mode_pages.lbp_page[CTL_PAGE_SAVED], 4244 sizeof(lbp_page_default)); 4245 page_index->page_data = 4246 (uint8_t *)lun->mode_pages.lbp_page; 4247 }} 4248 break; 4249 } 4250 case SMS_VENDOR_SPECIFIC_PAGE:{ 4251 switch (page_index->subpage) { 4252 case DBGCNF_SUBPAGE_CODE: { 4253 struct copan_debugconf_subpage *current_page, 4254 *saved_page; 4255 4256 memcpy(&lun->mode_pages.debugconf_subpage[ 4257 CTL_PAGE_CURRENT], 4258 &debugconf_page_default, 4259 sizeof(debugconf_page_default)); 4260 memcpy(&lun->mode_pages.debugconf_subpage[ 4261 CTL_PAGE_CHANGEABLE], 4262 &debugconf_page_changeable, 4263 sizeof(debugconf_page_changeable)); 4264 memcpy(&lun->mode_pages.debugconf_subpage[ 4265 CTL_PAGE_DEFAULT], 4266 &debugconf_page_default, 4267 sizeof(debugconf_page_default)); 4268 memcpy(&lun->mode_pages.debugconf_subpage[ 4269 CTL_PAGE_SAVED], 4270 &debugconf_page_default, 4271 sizeof(debugconf_page_default)); 4272 page_index->page_data = 4273 (uint8_t *)lun->mode_pages.debugconf_subpage; 4274 4275 current_page = (struct copan_debugconf_subpage *) 4276 (page_index->page_data + 4277 (page_index->page_len * 4278 CTL_PAGE_CURRENT)); 4279 saved_page = (struct copan_debugconf_subpage *) 4280 (page_index->page_data + 4281 (page_index->page_len * 4282 CTL_PAGE_SAVED)); 4283 break; 4284 } 4285 default: 4286 panic("invalid subpage value %d", 4287 page_index->subpage); 4288 break; 4289 } 4290 break; 4291 } 4292 default: 4293 panic("invalid page value %d", 4294 page_index->page_code & SMPH_PC_MASK); 4295 break; 4296 } 4297 } 4298 4299 return (CTL_RETVAL_COMPLETE); 4300} 4301 4302static int 4303ctl_init_log_page_index(struct ctl_lun *lun) 4304{ 4305 struct ctl_page_index *page_index; 4306 int i, j, k, prev; 4307 4308 memcpy(&lun->log_pages.index, log_page_index_template, 4309 sizeof(log_page_index_template)); 4310 4311 prev = -1; 4312 for (i = 0, j = 0, k = 0; i < CTL_NUM_LOG_PAGES; i++) { 4313 4314 page_index = &lun->log_pages.index[i]; 4315 /* 4316 * If this is a disk-only mode page, there's no point in 4317 * setting it up. For some pages, we have to have some 4318 * basic information about the disk in order to calculate the 4319 * mode page data. 4320 */ 4321 if ((lun->be_lun->lun_type != T_DIRECT) 4322 && (page_index->page_flags & CTL_PAGE_FLAG_DISK_ONLY)) 4323 continue; 4324 4325 if (page_index->page_code == SLS_LOGICAL_BLOCK_PROVISIONING && 4326 lun->backend->lun_attr == NULL) 4327 continue; 4328 4329 if (page_index->page_code != prev) { 4330 lun->log_pages.pages_page[j] = page_index->page_code; 4331 prev = page_index->page_code; 4332 j++; 4333 } 4334 lun->log_pages.subpages_page[k*2] = page_index->page_code; 4335 lun->log_pages.subpages_page[k*2+1] = page_index->subpage; 4336 k++; 4337 } 4338 lun->log_pages.index[0].page_data = &lun->log_pages.pages_page[0]; 4339 lun->log_pages.index[0].page_len = j; 4340 lun->log_pages.index[1].page_data = &lun->log_pages.subpages_page[0]; 4341 lun->log_pages.index[1].page_len = k * 2; 4342 lun->log_pages.index[2].page_data = &lun->log_pages.lbp_page[0]; 4343 lun->log_pages.index[2].page_len = 12*CTL_NUM_LBP_PARAMS; 4344 lun->log_pages.index[3].page_data = (uint8_t *)&lun->log_pages.stat_page; 4345 lun->log_pages.index[3].page_len = sizeof(lun->log_pages.stat_page); 4346 4347 return (CTL_RETVAL_COMPLETE); 4348} 4349 4350static int 4351hex2bin(const char *str, uint8_t *buf, int buf_size) 4352{ 4353 int i; 4354 u_char c; 4355 4356 memset(buf, 0, buf_size); 4357 while (isspace(str[0])) 4358 str++; 4359 if (str[0] == '0' && (str[1] == 'x' || str[1] == 'X')) 4360 str += 2; 4361 buf_size *= 2; 4362 for (i = 0; str[i] != 0 && i < buf_size; i++) { 4363 c = str[i]; 4364 if (isdigit(c)) 4365 c -= '0'; 4366 else if (isalpha(c)) 4367 c -= isupper(c) ? 'A' - 10 : 'a' - 10; 4368 else 4369 break; 4370 if (c >= 16) 4371 break; 4372 if ((i & 1) == 0) 4373 buf[i / 2] |= (c << 4); 4374 else 4375 buf[i / 2] |= c; 4376 } 4377 return ((i + 1) / 2); 4378} 4379 4380/* 4381 * LUN allocation. 4382 * 4383 * Requirements: 4384 * - caller allocates and zeros LUN storage, or passes in a NULL LUN if he 4385 * wants us to allocate the LUN and he can block. 4386 * - ctl_softc is always set 4387 * - be_lun is set if the LUN has a backend (needed for disk LUNs) 4388 * 4389 * Returns 0 for success, non-zero (errno) for failure. 4390 */ 4391static int 4392ctl_alloc_lun(struct ctl_softc *ctl_softc, struct ctl_lun *ctl_lun, 4393 struct ctl_be_lun *const be_lun) 4394{ 4395 struct ctl_lun *nlun, *lun; 4396 struct scsi_vpd_id_descriptor *desc; 4397 struct scsi_vpd_id_t10 *t10id; 4398 const char *eui, *naa, *scsiname, *vendor; 4399 int lun_number, i, lun_malloced; 4400 int devidlen, idlen1, idlen2 = 0, len; 4401 4402 if (be_lun == NULL) 4403 return (EINVAL); 4404 4405 /* 4406 * We currently only support Direct Access or Processor LUN types. 4407 */ 4408 switch (be_lun->lun_type) { 4409 case T_DIRECT: 4410 break; 4411 case T_PROCESSOR: 4412 break; 4413 case T_SEQUENTIAL: 4414 case T_CHANGER: 4415 default: 4416 be_lun->lun_config_status(be_lun->be_lun, 4417 CTL_LUN_CONFIG_FAILURE); 4418 break; 4419 } 4420 if (ctl_lun == NULL) { 4421 lun = malloc(sizeof(*lun), M_CTL, M_WAITOK); 4422 lun_malloced = 1; 4423 } else { 4424 lun_malloced = 0; 4425 lun = ctl_lun; 4426 } 4427 4428 memset(lun, 0, sizeof(*lun)); 4429 if (lun_malloced) 4430 lun->flags = CTL_LUN_MALLOCED; 4431 4432 /* Generate LUN ID. */ 4433 devidlen = max(CTL_DEVID_MIN_LEN, 4434 strnlen(be_lun->device_id, CTL_DEVID_LEN)); 4435 idlen1 = sizeof(*t10id) + devidlen; 4436 len = sizeof(struct scsi_vpd_id_descriptor) + idlen1; 4437 scsiname = ctl_get_opt(&be_lun->options, "scsiname"); 4438 if (scsiname != NULL) { 4439 idlen2 = roundup2(strlen(scsiname) + 1, 4); 4440 len += sizeof(struct scsi_vpd_id_descriptor) + idlen2; 4441 } 4442 eui = ctl_get_opt(&be_lun->options, "eui"); 4443 if (eui != NULL) { 4444 len += sizeof(struct scsi_vpd_id_descriptor) + 16; 4445 } 4446 naa = ctl_get_opt(&be_lun->options, "naa"); 4447 if (naa != NULL) { 4448 len += sizeof(struct scsi_vpd_id_descriptor) + 16; 4449 } 4450 lun->lun_devid = malloc(sizeof(struct ctl_devid) + len, 4451 M_CTL, M_WAITOK | M_ZERO); 4452 desc = (struct scsi_vpd_id_descriptor *)lun->lun_devid->data; 4453 desc->proto_codeset = SVPD_ID_CODESET_ASCII; 4454 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | SVPD_ID_TYPE_T10; 4455 desc->length = idlen1; 4456 t10id = (struct scsi_vpd_id_t10 *)&desc->identifier[0]; 4457 memset(t10id->vendor, ' ', sizeof(t10id->vendor)); 4458 if ((vendor = ctl_get_opt(&be_lun->options, "vendor")) == NULL) { 4459 strncpy((char *)t10id->vendor, CTL_VENDOR, sizeof(t10id->vendor)); 4460 } else { 4461 strncpy(t10id->vendor, vendor, 4462 min(sizeof(t10id->vendor), strlen(vendor))); 4463 } 4464 strncpy((char *)t10id->vendor_spec_id, 4465 (char *)be_lun->device_id, devidlen); 4466 if (scsiname != NULL) { 4467 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 4468 desc->length); 4469 desc->proto_codeset = SVPD_ID_CODESET_UTF8; 4470 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | 4471 SVPD_ID_TYPE_SCSI_NAME; 4472 desc->length = idlen2; 4473 strlcpy(desc->identifier, scsiname, idlen2); 4474 } 4475 if (eui != NULL) { 4476 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 4477 desc->length); 4478 desc->proto_codeset = SVPD_ID_CODESET_BINARY; 4479 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | 4480 SVPD_ID_TYPE_EUI64; 4481 desc->length = hex2bin(eui, desc->identifier, 16); 4482 desc->length = desc->length > 12 ? 16 : 4483 (desc->length > 8 ? 12 : 8); 4484 len -= 16 - desc->length; 4485 } 4486 if (naa != NULL) { 4487 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 4488 desc->length); 4489 desc->proto_codeset = SVPD_ID_CODESET_BINARY; 4490 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | 4491 SVPD_ID_TYPE_NAA; 4492 desc->length = hex2bin(naa, desc->identifier, 16); 4493 desc->length = desc->length > 8 ? 16 : 8; 4494 len -= 16 - desc->length; 4495 } 4496 lun->lun_devid->len = len; 4497 4498 mtx_lock(&ctl_softc->ctl_lock); 4499 /* 4500 * See if the caller requested a particular LUN number. If so, see 4501 * if it is available. Otherwise, allocate the first available LUN. 4502 */ 4503 if (be_lun->flags & CTL_LUN_FLAG_ID_REQ) { 4504 if ((be_lun->req_lun_id > (CTL_MAX_LUNS - 1)) 4505 || (ctl_is_set(ctl_softc->ctl_lun_mask, be_lun->req_lun_id))) { 4506 mtx_unlock(&ctl_softc->ctl_lock); 4507 if (be_lun->req_lun_id > (CTL_MAX_LUNS - 1)) { 4508 printf("ctl: requested LUN ID %d is higher " 4509 "than CTL_MAX_LUNS - 1 (%d)\n", 4510 be_lun->req_lun_id, CTL_MAX_LUNS - 1); 4511 } else { 4512 /* 4513 * XXX KDM return an error, or just assign 4514 * another LUN ID in this case?? 4515 */ 4516 printf("ctl: requested LUN ID %d is already " 4517 "in use\n", be_lun->req_lun_id); 4518 } 4519 if (lun->flags & CTL_LUN_MALLOCED) 4520 free(lun, M_CTL); 4521 be_lun->lun_config_status(be_lun->be_lun, 4522 CTL_LUN_CONFIG_FAILURE); 4523 return (ENOSPC); 4524 } 4525 lun_number = be_lun->req_lun_id; 4526 } else { 4527 lun_number = ctl_ffz(ctl_softc->ctl_lun_mask, 0, CTL_MAX_LUNS); 4528 if (lun_number == -1) { 4529 mtx_unlock(&ctl_softc->ctl_lock); 4530 printf("ctl: can't allocate LUN, out of LUNs\n"); 4531 if (lun->flags & CTL_LUN_MALLOCED) 4532 free(lun, M_CTL); 4533 be_lun->lun_config_status(be_lun->be_lun, 4534 CTL_LUN_CONFIG_FAILURE); 4535 return (ENOSPC); 4536 } 4537 } 4538 ctl_set_mask(ctl_softc->ctl_lun_mask, lun_number); 4539 4540 mtx_init(&lun->lun_lock, "CTL LUN", NULL, MTX_DEF); 4541 lun->lun = lun_number; 4542 lun->be_lun = be_lun; 4543 /* 4544 * The processor LUN is always enabled. Disk LUNs come on line 4545 * disabled, and must be enabled by the backend. 4546 */ 4547 lun->flags |= CTL_LUN_DISABLED; 4548 lun->backend = be_lun->be; 4549 be_lun->ctl_lun = lun; 4550 be_lun->lun_id = lun_number; 4551 atomic_add_int(&be_lun->be->num_luns, 1); 4552 if (be_lun->flags & CTL_LUN_FLAG_OFFLINE) 4553 lun->flags |= CTL_LUN_OFFLINE; 4554 4555 if (be_lun->flags & CTL_LUN_FLAG_POWERED_OFF) 4556 lun->flags |= CTL_LUN_STOPPED; 4557 4558 if (be_lun->flags & CTL_LUN_FLAG_INOPERABLE) 4559 lun->flags |= CTL_LUN_INOPERABLE; 4560 4561 if (be_lun->flags & CTL_LUN_FLAG_PRIMARY) 4562 lun->flags |= CTL_LUN_PRIMARY_SC; 4563 4564 lun->ctl_softc = ctl_softc; 4565#ifdef CTL_TIME_IO 4566 lun->last_busy = getsbinuptime(); 4567#endif 4568 TAILQ_INIT(&lun->ooa_queue); 4569 TAILQ_INIT(&lun->blocked_queue); 4570 STAILQ_INIT(&lun->error_list); 4571 ctl_tpc_lun_init(lun); 4572 4573 /* 4574 * Initialize the mode and log page index. 4575 */ 4576 ctl_init_page_index(lun); 4577 ctl_init_log_page_index(lun); 4578 4579 /* 4580 * Now, before we insert this lun on the lun list, set the lun 4581 * inventory changed UA for all other luns. 4582 */ 4583 STAILQ_FOREACH(nlun, &ctl_softc->lun_list, links) { 4584 mtx_lock(&nlun->lun_lock); 4585 ctl_est_ua_all(nlun, -1, CTL_UA_LUN_CHANGE); 4586 mtx_unlock(&nlun->lun_lock); 4587 } 4588 4589 STAILQ_INSERT_TAIL(&ctl_softc->lun_list, lun, links); 4590 4591 ctl_softc->ctl_luns[lun_number] = lun; 4592 4593 ctl_softc->num_luns++; 4594 4595 /* Setup statistics gathering */ 4596 lun->stats.device_type = be_lun->lun_type; 4597 lun->stats.lun_number = lun_number; 4598 if (lun->stats.device_type == T_DIRECT) 4599 lun->stats.blocksize = be_lun->blocksize; 4600 else 4601 lun->stats.flags = CTL_LUN_STATS_NO_BLOCKSIZE; 4602 for (i = 0;i < CTL_MAX_PORTS;i++) 4603 lun->stats.ports[i].targ_port = i; 4604 4605 mtx_unlock(&ctl_softc->ctl_lock); 4606 4607 lun->be_lun->lun_config_status(lun->be_lun->be_lun, CTL_LUN_CONFIG_OK); 4608 return (0); 4609} 4610 4611/* 4612 * Delete a LUN. 4613 * Assumptions: 4614 * - LUN has already been marked invalid and any pending I/O has been taken 4615 * care of. 4616 */ 4617static int 4618ctl_free_lun(struct ctl_lun *lun) 4619{ 4620 struct ctl_softc *softc; 4621 struct ctl_lun *nlun; 4622 int i; 4623 4624 softc = lun->ctl_softc; 4625 4626 mtx_assert(&softc->ctl_lock, MA_OWNED); 4627 4628 STAILQ_REMOVE(&softc->lun_list, lun, ctl_lun, links); 4629 4630 ctl_clear_mask(softc->ctl_lun_mask, lun->lun); 4631 4632 softc->ctl_luns[lun->lun] = NULL; 4633 4634 if (!TAILQ_EMPTY(&lun->ooa_queue)) 4635 panic("Freeing a LUN %p with outstanding I/O!!\n", lun); 4636 4637 softc->num_luns--; 4638 4639 /* 4640 * Tell the backend to free resources, if this LUN has a backend. 4641 */ 4642 atomic_subtract_int(&lun->be_lun->be->num_luns, 1); 4643 lun->be_lun->lun_shutdown(lun->be_lun->be_lun); 4644 4645 ctl_tpc_lun_shutdown(lun); 4646 mtx_destroy(&lun->lun_lock); 4647 free(lun->lun_devid, M_CTL); 4648 for (i = 0; i < CTL_MAX_PORTS; i++) 4649 free(lun->pending_ua[i], M_CTL); 4650 for (i = 0; i < CTL_MAX_PORTS; i++) 4651 free(lun->pr_keys[i], M_CTL); 4652 free(lun->write_buffer, M_CTL); 4653 if (lun->flags & CTL_LUN_MALLOCED) 4654 free(lun, M_CTL); 4655 4656 STAILQ_FOREACH(nlun, &softc->lun_list, links) { 4657 mtx_lock(&nlun->lun_lock); 4658 ctl_est_ua_all(nlun, -1, CTL_UA_LUN_CHANGE); 4659 mtx_unlock(&nlun->lun_lock); 4660 } 4661 4662 return (0); 4663} 4664 4665static void 4666ctl_create_lun(struct ctl_be_lun *be_lun) 4667{ 4668 4669 /* 4670 * ctl_alloc_lun() should handle all potential failure cases. 4671 */ 4672 ctl_alloc_lun(control_softc, NULL, be_lun); 4673} 4674 4675int 4676ctl_add_lun(struct ctl_be_lun *be_lun) 4677{ 4678 struct ctl_softc *softc = control_softc; 4679 4680 mtx_lock(&softc->ctl_lock); 4681 STAILQ_INSERT_TAIL(&softc->pending_lun_queue, be_lun, links); 4682 mtx_unlock(&softc->ctl_lock); 4683 wakeup(&softc->pending_lun_queue); 4684 4685 return (0); 4686} 4687 4688int 4689ctl_enable_lun(struct ctl_be_lun *be_lun) 4690{ 4691 struct ctl_softc *softc; 4692 struct ctl_port *port, *nport; 4693 struct ctl_lun *lun; 4694 int retval; 4695 4696 lun = (struct ctl_lun *)be_lun->ctl_lun; 4697 softc = lun->ctl_softc; 4698 4699 mtx_lock(&softc->ctl_lock); 4700 mtx_lock(&lun->lun_lock); 4701 if ((lun->flags & CTL_LUN_DISABLED) == 0) { 4702 /* 4703 * eh? Why did we get called if the LUN is already 4704 * enabled? 4705 */ 4706 mtx_unlock(&lun->lun_lock); 4707 mtx_unlock(&softc->ctl_lock); 4708 return (0); 4709 } 4710 lun->flags &= ~CTL_LUN_DISABLED; 4711 mtx_unlock(&lun->lun_lock); 4712 4713 for (port = STAILQ_FIRST(&softc->port_list); port != NULL; port = nport) { 4714 nport = STAILQ_NEXT(port, links); 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_offline(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_OFFLINE; 4820 mtx_unlock(&lun->lun_lock); 4821 return (0); 4822} 4823 4824int 4825ctl_lun_online(struct ctl_be_lun *be_lun) 4826{ 4827 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 4828 4829 mtx_lock(&lun->lun_lock); 4830 lun->flags &= ~CTL_LUN_OFFLINE; 4831 mtx_unlock(&lun->lun_lock); 4832 return (0); 4833} 4834 4835int 4836ctl_lun_primary(struct ctl_be_lun *be_lun) 4837{ 4838 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 4839 4840 mtx_lock(&lun->lun_lock); 4841 lun->flags |= CTL_LUN_PRIMARY_SC; 4842 ctl_est_ua_all(lun, -1, CTL_UA_ASYM_ACC_CHANGE); 4843 mtx_unlock(&lun->lun_lock); 4844 ctl_isc_announce_lun(lun); 4845 return (0); 4846} 4847 4848int 4849ctl_lun_secondary(struct ctl_be_lun *be_lun) 4850{ 4851 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 4852 4853 mtx_lock(&lun->lun_lock); 4854 lun->flags &= ~CTL_LUN_PRIMARY_SC; 4855 ctl_est_ua_all(lun, -1, CTL_UA_ASYM_ACC_CHANGE); 4856 mtx_unlock(&lun->lun_lock); 4857 ctl_isc_announce_lun(lun); 4858 return (0); 4859} 4860 4861int 4862ctl_invalidate_lun(struct ctl_be_lun *be_lun) 4863{ 4864 struct ctl_softc *softc; 4865 struct ctl_lun *lun; 4866 4867 lun = (struct ctl_lun *)be_lun->ctl_lun; 4868 softc = lun->ctl_softc; 4869 4870 mtx_lock(&lun->lun_lock); 4871 4872 /* 4873 * The LUN needs to be disabled before it can be marked invalid. 4874 */ 4875 if ((lun->flags & CTL_LUN_DISABLED) == 0) { 4876 mtx_unlock(&lun->lun_lock); 4877 return (-1); 4878 } 4879 /* 4880 * Mark the LUN invalid. 4881 */ 4882 lun->flags |= CTL_LUN_INVALID; 4883 4884 /* 4885 * If there is nothing in the OOA queue, go ahead and free the LUN. 4886 * If we have something in the OOA queue, we'll free it when the 4887 * last I/O completes. 4888 */ 4889 if (TAILQ_EMPTY(&lun->ooa_queue)) { 4890 mtx_unlock(&lun->lun_lock); 4891 mtx_lock(&softc->ctl_lock); 4892 ctl_free_lun(lun); 4893 mtx_unlock(&softc->ctl_lock); 4894 } else 4895 mtx_unlock(&lun->lun_lock); 4896 4897 return (0); 4898} 4899 4900int 4901ctl_lun_inoperable(struct ctl_be_lun *be_lun) 4902{ 4903 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 4904 4905 mtx_lock(&lun->lun_lock); 4906 lun->flags |= CTL_LUN_INOPERABLE; 4907 mtx_unlock(&lun->lun_lock); 4908 return (0); 4909} 4910 4911int 4912ctl_lun_operable(struct ctl_be_lun *be_lun) 4913{ 4914 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 4915 4916 mtx_lock(&lun->lun_lock); 4917 lun->flags &= ~CTL_LUN_INOPERABLE; 4918 mtx_unlock(&lun->lun_lock); 4919 return (0); 4920} 4921 4922void 4923ctl_lun_capacity_changed(struct ctl_be_lun *be_lun) 4924{ 4925 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 4926 union ctl_ha_msg msg; 4927 4928 mtx_lock(&lun->lun_lock); 4929 ctl_est_ua_all(lun, -1, CTL_UA_CAPACITY_CHANGED); 4930 mtx_unlock(&lun->lun_lock); 4931 if (lun->ctl_softc->ha_mode == CTL_HA_MODE_XFER) { 4932 /* Send msg to other side. */ 4933 bzero(&msg.ua, sizeof(msg.ua)); 4934 msg.hdr.msg_type = CTL_MSG_UA; 4935 msg.hdr.nexus.initid = -1; 4936 msg.hdr.nexus.targ_port = -1; 4937 msg.hdr.nexus.targ_lun = lun->lun; 4938 msg.hdr.nexus.targ_mapped_lun = lun->lun; 4939 msg.ua.ua_all = 1; 4940 msg.ua.ua_set = 1; 4941 msg.ua.ua_type = CTL_UA_CAPACITY_CHANGED; 4942 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, sizeof(msg.ua), 4943 M_WAITOK); 4944 } 4945} 4946 4947/* 4948 * Backend "memory move is complete" callback for requests that never 4949 * make it down to say RAIDCore's configuration code. 4950 */ 4951int 4952ctl_config_move_done(union ctl_io *io) 4953{ 4954 int retval; 4955 4956 CTL_DEBUG_PRINT(("ctl_config_move_done\n")); 4957 KASSERT(io->io_hdr.io_type == CTL_IO_SCSI, 4958 ("Config I/O type isn't CTL_IO_SCSI (%d)!", io->io_hdr.io_type)); 4959 4960 if ((io->io_hdr.port_status != 0) && 4961 ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE || 4962 (io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS)) { 4963 /* 4964 * For hardware error sense keys, the sense key 4965 * specific value is defined to be a retry count, 4966 * but we use it to pass back an internal FETD 4967 * error code. XXX KDM Hopefully the FETD is only 4968 * using 16 bits for an error code, since that's 4969 * all the space we have in the sks field. 4970 */ 4971 ctl_set_internal_failure(&io->scsiio, 4972 /*sks_valid*/ 1, 4973 /*retry_count*/ 4974 io->io_hdr.port_status); 4975 } 4976 4977 if (ctl_debug & CTL_DEBUG_CDB_DATA) 4978 ctl_data_print(io); 4979 if (((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_IN) || 4980 ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE && 4981 (io->io_hdr.status & CTL_STATUS_MASK) != CTL_SUCCESS) || 4982 ((io->io_hdr.flags & CTL_FLAG_ABORT) != 0)) { 4983 /* 4984 * XXX KDM just assuming a single pointer here, and not a 4985 * S/G list. If we start using S/G lists for config data, 4986 * we'll need to know how to clean them up here as well. 4987 */ 4988 if (io->io_hdr.flags & CTL_FLAG_ALLOCATED) 4989 free(io->scsiio.kern_data_ptr, M_CTL); 4990 ctl_done(io); 4991 retval = CTL_RETVAL_COMPLETE; 4992 } else { 4993 /* 4994 * XXX KDM now we need to continue data movement. Some 4995 * options: 4996 * - call ctl_scsiio() again? We don't do this for data 4997 * writes, because for those at least we know ahead of 4998 * time where the write will go and how long it is. For 4999 * config writes, though, that information is largely 5000 * contained within the write itself, thus we need to 5001 * parse out the data again. 5002 * 5003 * - Call some other function once the data is in? 5004 */ 5005 5006 /* 5007 * XXX KDM call ctl_scsiio() again for now, and check flag 5008 * bits to see whether we're allocated or not. 5009 */ 5010 retval = ctl_scsiio(&io->scsiio); 5011 } 5012 return (retval); 5013} 5014 5015/* 5016 * This gets called by a backend driver when it is done with a 5017 * data_submit method. 5018 */ 5019void 5020ctl_data_submit_done(union ctl_io *io) 5021{ 5022 /* 5023 * If the IO_CONT flag is set, we need to call the supplied 5024 * function to continue processing the I/O, instead of completing 5025 * the I/O just yet. 5026 * 5027 * If there is an error, though, we don't want to keep processing. 5028 * Instead, just send status back to the initiator. 5029 */ 5030 if ((io->io_hdr.flags & CTL_FLAG_IO_CONT) && 5031 (io->io_hdr.flags & CTL_FLAG_ABORT) == 0 && 5032 ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE || 5033 (io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS)) { 5034 io->scsiio.io_cont(io); 5035 return; 5036 } 5037 ctl_done(io); 5038} 5039 5040/* 5041 * This gets called by a backend driver when it is done with a 5042 * configuration write. 5043 */ 5044void 5045ctl_config_write_done(union ctl_io *io) 5046{ 5047 uint8_t *buf; 5048 5049 /* 5050 * If the IO_CONT flag is set, we need to call the supplied 5051 * function to continue processing the I/O, instead of completing 5052 * the I/O just yet. 5053 * 5054 * If there is an error, though, we don't want to keep processing. 5055 * Instead, just send status back to the initiator. 5056 */ 5057 if ((io->io_hdr.flags & CTL_FLAG_IO_CONT) && 5058 (io->io_hdr.flags & CTL_FLAG_ABORT) == 0 && 5059 ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE || 5060 (io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS)) { 5061 io->scsiio.io_cont(io); 5062 return; 5063 } 5064 /* 5065 * Since a configuration write can be done for commands that actually 5066 * have data allocated, like write buffer, and commands that have 5067 * no data, like start/stop unit, we need to check here. 5068 */ 5069 if (io->io_hdr.flags & CTL_FLAG_ALLOCATED) 5070 buf = io->scsiio.kern_data_ptr; 5071 else 5072 buf = NULL; 5073 ctl_done(io); 5074 if (buf) 5075 free(buf, M_CTL); 5076} 5077 5078void 5079ctl_config_read_done(union ctl_io *io) 5080{ 5081 uint8_t *buf; 5082 5083 /* 5084 * If there is some error -- we are done, skip data transfer. 5085 */ 5086 if ((io->io_hdr.flags & CTL_FLAG_ABORT) != 0 || 5087 ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE && 5088 (io->io_hdr.status & CTL_STATUS_MASK) != CTL_SUCCESS)) { 5089 if (io->io_hdr.flags & CTL_FLAG_ALLOCATED) 5090 buf = io->scsiio.kern_data_ptr; 5091 else 5092 buf = NULL; 5093 ctl_done(io); 5094 if (buf) 5095 free(buf, M_CTL); 5096 return; 5097 } 5098 5099 /* 5100 * If the IO_CONT flag is set, we need to call the supplied 5101 * function to continue processing the I/O, instead of completing 5102 * the I/O just yet. 5103 */ 5104 if (io->io_hdr.flags & CTL_FLAG_IO_CONT) { 5105 io->scsiio.io_cont(io); 5106 return; 5107 } 5108 5109 ctl_datamove(io); 5110} 5111 5112/* 5113 * SCSI release command. 5114 */ 5115int 5116ctl_scsi_release(struct ctl_scsiio *ctsio) 5117{ 5118 int length, longid, thirdparty_id, resv_id; 5119 struct ctl_lun *lun; 5120 uint32_t residx; 5121 5122 length = 0; 5123 resv_id = 0; 5124 5125 CTL_DEBUG_PRINT(("ctl_scsi_release\n")); 5126 5127 residx = ctl_get_initindex(&ctsio->io_hdr.nexus); 5128 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5129 5130 switch (ctsio->cdb[0]) { 5131 case RELEASE_10: { 5132 struct scsi_release_10 *cdb; 5133 5134 cdb = (struct scsi_release_10 *)ctsio->cdb; 5135 5136 if (cdb->byte2 & SR10_LONGID) 5137 longid = 1; 5138 else 5139 thirdparty_id = cdb->thirdparty_id; 5140 5141 resv_id = cdb->resv_id; 5142 length = scsi_2btoul(cdb->length); 5143 break; 5144 } 5145 } 5146 5147 5148 /* 5149 * XXX KDM right now, we only support LUN reservation. We don't 5150 * support 3rd party reservations, or extent reservations, which 5151 * might actually need the parameter list. If we've gotten this 5152 * far, we've got a LUN reservation. Anything else got kicked out 5153 * above. So, according to SPC, ignore the length. 5154 */ 5155 length = 0; 5156 5157 if (((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) 5158 && (length > 0)) { 5159 ctsio->kern_data_ptr = malloc(length, M_CTL, M_WAITOK); 5160 ctsio->kern_data_len = length; 5161 ctsio->kern_total_len = length; 5162 ctsio->kern_data_resid = 0; 5163 ctsio->kern_rel_offset = 0; 5164 ctsio->kern_sg_entries = 0; 5165 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5166 ctsio->be_move_done = ctl_config_move_done; 5167 ctl_datamove((union ctl_io *)ctsio); 5168 5169 return (CTL_RETVAL_COMPLETE); 5170 } 5171 5172 if (length > 0) 5173 thirdparty_id = scsi_8btou64(ctsio->kern_data_ptr); 5174 5175 mtx_lock(&lun->lun_lock); 5176 5177 /* 5178 * According to SPC, it is not an error for an intiator to attempt 5179 * to release a reservation on a LUN that isn't reserved, or that 5180 * is reserved by another initiator. The reservation can only be 5181 * released, though, by the initiator who made it or by one of 5182 * several reset type events. 5183 */ 5184 if ((lun->flags & CTL_LUN_RESERVED) && (lun->res_idx == residx)) 5185 lun->flags &= ~CTL_LUN_RESERVED; 5186 5187 mtx_unlock(&lun->lun_lock); 5188 5189 if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) { 5190 free(ctsio->kern_data_ptr, M_CTL); 5191 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED; 5192 } 5193 5194 ctl_set_success(ctsio); 5195 ctl_done((union ctl_io *)ctsio); 5196 return (CTL_RETVAL_COMPLETE); 5197} 5198 5199int 5200ctl_scsi_reserve(struct ctl_scsiio *ctsio) 5201{ 5202 int extent, thirdparty, longid; 5203 int resv_id, length; 5204 uint64_t thirdparty_id; 5205 struct ctl_lun *lun; 5206 uint32_t residx; 5207 5208 extent = 0; 5209 thirdparty = 0; 5210 longid = 0; 5211 resv_id = 0; 5212 length = 0; 5213 thirdparty_id = 0; 5214 5215 CTL_DEBUG_PRINT(("ctl_reserve\n")); 5216 5217 residx = ctl_get_initindex(&ctsio->io_hdr.nexus); 5218 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5219 5220 switch (ctsio->cdb[0]) { 5221 case RESERVE_10: { 5222 struct scsi_reserve_10 *cdb; 5223 5224 cdb = (struct scsi_reserve_10 *)ctsio->cdb; 5225 5226 if (cdb->byte2 & SR10_LONGID) 5227 longid = 1; 5228 else 5229 thirdparty_id = cdb->thirdparty_id; 5230 5231 resv_id = cdb->resv_id; 5232 length = scsi_2btoul(cdb->length); 5233 break; 5234 } 5235 } 5236 5237 /* 5238 * XXX KDM right now, we only support LUN reservation. We don't 5239 * support 3rd party reservations, or extent reservations, which 5240 * might actually need the parameter list. If we've gotten this 5241 * far, we've got a LUN reservation. Anything else got kicked out 5242 * above. So, according to SPC, ignore the length. 5243 */ 5244 length = 0; 5245 5246 if (((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) 5247 && (length > 0)) { 5248 ctsio->kern_data_ptr = malloc(length, M_CTL, M_WAITOK); 5249 ctsio->kern_data_len = length; 5250 ctsio->kern_total_len = length; 5251 ctsio->kern_data_resid = 0; 5252 ctsio->kern_rel_offset = 0; 5253 ctsio->kern_sg_entries = 0; 5254 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5255 ctsio->be_move_done = ctl_config_move_done; 5256 ctl_datamove((union ctl_io *)ctsio); 5257 5258 return (CTL_RETVAL_COMPLETE); 5259 } 5260 5261 if (length > 0) 5262 thirdparty_id = scsi_8btou64(ctsio->kern_data_ptr); 5263 5264 mtx_lock(&lun->lun_lock); 5265 if ((lun->flags & CTL_LUN_RESERVED) && (lun->res_idx != residx)) { 5266 ctl_set_reservation_conflict(ctsio); 5267 goto bailout; 5268 } 5269 5270 lun->flags |= CTL_LUN_RESERVED; 5271 lun->res_idx = residx; 5272 5273 ctl_set_success(ctsio); 5274 5275bailout: 5276 mtx_unlock(&lun->lun_lock); 5277 5278 if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) { 5279 free(ctsio->kern_data_ptr, M_CTL); 5280 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED; 5281 } 5282 5283 ctl_done((union ctl_io *)ctsio); 5284 return (CTL_RETVAL_COMPLETE); 5285} 5286 5287int 5288ctl_start_stop(struct ctl_scsiio *ctsio) 5289{ 5290 struct scsi_start_stop_unit *cdb; 5291 struct ctl_lun *lun; 5292 int retval; 5293 5294 CTL_DEBUG_PRINT(("ctl_start_stop\n")); 5295 5296 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5297 retval = 0; 5298 5299 cdb = (struct scsi_start_stop_unit *)ctsio->cdb; 5300 5301 /* 5302 * XXX KDM 5303 * We don't support the immediate bit on a stop unit. In order to 5304 * do that, we would need to code up a way to know that a stop is 5305 * pending, and hold off any new commands until it completes, one 5306 * way or another. Then we could accept or reject those commands 5307 * depending on its status. We would almost need to do the reverse 5308 * of what we do below for an immediate start -- return the copy of 5309 * the ctl_io to the FETD with status to send to the host (and to 5310 * free the copy!) and then free the original I/O once the stop 5311 * actually completes. That way, the OOA queue mechanism can work 5312 * to block commands that shouldn't proceed. Another alternative 5313 * would be to put the copy in the queue in place of the original, 5314 * and return the original back to the caller. That could be 5315 * slightly safer.. 5316 */ 5317 if ((cdb->byte2 & SSS_IMMED) 5318 && ((cdb->how & SSS_START) == 0)) { 5319 ctl_set_invalid_field(ctsio, 5320 /*sks_valid*/ 1, 5321 /*command*/ 1, 5322 /*field*/ 1, 5323 /*bit_valid*/ 1, 5324 /*bit*/ 0); 5325 ctl_done((union ctl_io *)ctsio); 5326 return (CTL_RETVAL_COMPLETE); 5327 } 5328 5329 if ((lun->flags & CTL_LUN_PR_RESERVED) 5330 && ((cdb->how & SSS_START)==0)) { 5331 uint32_t residx; 5332 5333 residx = ctl_get_initindex(&ctsio->io_hdr.nexus); 5334 if (ctl_get_prkey(lun, residx) == 0 5335 || (lun->pr_res_idx!=residx && lun->res_type < 4)) { 5336 5337 ctl_set_reservation_conflict(ctsio); 5338 ctl_done((union ctl_io *)ctsio); 5339 return (CTL_RETVAL_COMPLETE); 5340 } 5341 } 5342 5343 /* 5344 * If there is no backend on this device, we can't start or stop 5345 * it. In theory we shouldn't get any start/stop commands in the 5346 * first place at this level if the LUN doesn't have a backend. 5347 * That should get stopped by the command decode code. 5348 */ 5349 if (lun->backend == NULL) { 5350 ctl_set_invalid_opcode(ctsio); 5351 ctl_done((union ctl_io *)ctsio); 5352 return (CTL_RETVAL_COMPLETE); 5353 } 5354 5355 /* 5356 * XXX KDM Copan-specific offline behavior. 5357 * Figure out a reasonable way to port this? 5358 */ 5359#ifdef NEEDTOPORT 5360 mtx_lock(&lun->lun_lock); 5361 5362 if (((cdb->byte2 & SSS_ONOFFLINE) == 0) 5363 && (lun->flags & CTL_LUN_OFFLINE)) { 5364 /* 5365 * If the LUN is offline, and the on/offline bit isn't set, 5366 * reject the start or stop. Otherwise, let it through. 5367 */ 5368 mtx_unlock(&lun->lun_lock); 5369 ctl_set_lun_not_ready(ctsio); 5370 ctl_done((union ctl_io *)ctsio); 5371 } else { 5372 mtx_unlock(&lun->lun_lock); 5373#endif /* NEEDTOPORT */ 5374 /* 5375 * This could be a start or a stop when we're online, 5376 * or a stop/offline or start/online. A start or stop when 5377 * we're offline is covered in the case above. 5378 */ 5379 /* 5380 * In the non-immediate case, we send the request to 5381 * the backend and return status to the user when 5382 * it is done. 5383 * 5384 * In the immediate case, we allocate a new ctl_io 5385 * to hold a copy of the request, and send that to 5386 * the backend. We then set good status on the 5387 * user's request and return it immediately. 5388 */ 5389 if (cdb->byte2 & SSS_IMMED) { 5390 union ctl_io *new_io; 5391 5392 new_io = ctl_alloc_io(ctsio->io_hdr.pool); 5393 ctl_copy_io((union ctl_io *)ctsio, new_io); 5394 retval = lun->backend->config_write(new_io); 5395 ctl_set_success(ctsio); 5396 ctl_done((union ctl_io *)ctsio); 5397 } else { 5398 retval = lun->backend->config_write( 5399 (union ctl_io *)ctsio); 5400 } 5401#ifdef NEEDTOPORT 5402 } 5403#endif 5404 return (retval); 5405} 5406 5407/* 5408 * We support the SYNCHRONIZE CACHE command (10 and 16 byte versions), but 5409 * we don't really do anything with the LBA and length fields if the user 5410 * passes them in. Instead we'll just flush out the cache for the entire 5411 * LUN. 5412 */ 5413int 5414ctl_sync_cache(struct ctl_scsiio *ctsio) 5415{ 5416 struct ctl_lun *lun; 5417 struct ctl_softc *softc; 5418 struct ctl_lba_len_flags *lbalen; 5419 uint64_t starting_lba; 5420 uint32_t block_count; 5421 int retval; 5422 uint8_t byte2; 5423 5424 CTL_DEBUG_PRINT(("ctl_sync_cache\n")); 5425 5426 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5427 softc = lun->ctl_softc; 5428 retval = 0; 5429 5430 switch (ctsio->cdb[0]) { 5431 case SYNCHRONIZE_CACHE: { 5432 struct scsi_sync_cache *cdb; 5433 cdb = (struct scsi_sync_cache *)ctsio->cdb; 5434 5435 starting_lba = scsi_4btoul(cdb->begin_lba); 5436 block_count = scsi_2btoul(cdb->lb_count); 5437 byte2 = cdb->byte2; 5438 break; 5439 } 5440 case SYNCHRONIZE_CACHE_16: { 5441 struct scsi_sync_cache_16 *cdb; 5442 cdb = (struct scsi_sync_cache_16 *)ctsio->cdb; 5443 5444 starting_lba = scsi_8btou64(cdb->begin_lba); 5445 block_count = scsi_4btoul(cdb->lb_count); 5446 byte2 = cdb->byte2; 5447 break; 5448 } 5449 default: 5450 ctl_set_invalid_opcode(ctsio); 5451 ctl_done((union ctl_io *)ctsio); 5452 goto bailout; 5453 break; /* NOTREACHED */ 5454 } 5455 5456 /* 5457 * We check the LBA and length, but don't do anything with them. 5458 * A SYNCHRONIZE CACHE will cause the entire cache for this lun to 5459 * get flushed. This check will just help satisfy anyone who wants 5460 * to see an error for an out of range LBA. 5461 */ 5462 if ((starting_lba + block_count) > (lun->be_lun->maxlba + 1)) { 5463 ctl_set_lba_out_of_range(ctsio); 5464 ctl_done((union ctl_io *)ctsio); 5465 goto bailout; 5466 } 5467 5468 /* 5469 * If this LUN has no backend, we can't flush the cache anyway. 5470 */ 5471 if (lun->backend == NULL) { 5472 ctl_set_invalid_opcode(ctsio); 5473 ctl_done((union ctl_io *)ctsio); 5474 goto bailout; 5475 } 5476 5477 lbalen = (struct ctl_lba_len_flags *)&ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 5478 lbalen->lba = starting_lba; 5479 lbalen->len = block_count; 5480 lbalen->flags = byte2; 5481 5482 /* 5483 * Check to see whether we're configured to send the SYNCHRONIZE 5484 * CACHE command directly to the back end. 5485 */ 5486 mtx_lock(&lun->lun_lock); 5487 if ((softc->flags & CTL_FLAG_REAL_SYNC) 5488 && (++(lun->sync_count) >= lun->sync_interval)) { 5489 lun->sync_count = 0; 5490 mtx_unlock(&lun->lun_lock); 5491 retval = lun->backend->config_write((union ctl_io *)ctsio); 5492 } else { 5493 mtx_unlock(&lun->lun_lock); 5494 ctl_set_success(ctsio); 5495 ctl_done((union ctl_io *)ctsio); 5496 } 5497 5498bailout: 5499 5500 return (retval); 5501} 5502 5503int 5504ctl_format(struct ctl_scsiio *ctsio) 5505{ 5506 struct scsi_format *cdb; 5507 struct ctl_lun *lun; 5508 int length, defect_list_len; 5509 5510 CTL_DEBUG_PRINT(("ctl_format\n")); 5511 5512 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5513 5514 cdb = (struct scsi_format *)ctsio->cdb; 5515 5516 length = 0; 5517 if (cdb->byte2 & SF_FMTDATA) { 5518 if (cdb->byte2 & SF_LONGLIST) 5519 length = sizeof(struct scsi_format_header_long); 5520 else 5521 length = sizeof(struct scsi_format_header_short); 5522 } 5523 5524 if (((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) 5525 && (length > 0)) { 5526 ctsio->kern_data_ptr = malloc(length, M_CTL, M_WAITOK); 5527 ctsio->kern_data_len = length; 5528 ctsio->kern_total_len = length; 5529 ctsio->kern_data_resid = 0; 5530 ctsio->kern_rel_offset = 0; 5531 ctsio->kern_sg_entries = 0; 5532 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5533 ctsio->be_move_done = ctl_config_move_done; 5534 ctl_datamove((union ctl_io *)ctsio); 5535 5536 return (CTL_RETVAL_COMPLETE); 5537 } 5538 5539 defect_list_len = 0; 5540 5541 if (cdb->byte2 & SF_FMTDATA) { 5542 if (cdb->byte2 & SF_LONGLIST) { 5543 struct scsi_format_header_long *header; 5544 5545 header = (struct scsi_format_header_long *) 5546 ctsio->kern_data_ptr; 5547 5548 defect_list_len = scsi_4btoul(header->defect_list_len); 5549 if (defect_list_len != 0) { 5550 ctl_set_invalid_field(ctsio, 5551 /*sks_valid*/ 1, 5552 /*command*/ 0, 5553 /*field*/ 2, 5554 /*bit_valid*/ 0, 5555 /*bit*/ 0); 5556 goto bailout; 5557 } 5558 } else { 5559 struct scsi_format_header_short *header; 5560 5561 header = (struct scsi_format_header_short *) 5562 ctsio->kern_data_ptr; 5563 5564 defect_list_len = scsi_2btoul(header->defect_list_len); 5565 if (defect_list_len != 0) { 5566 ctl_set_invalid_field(ctsio, 5567 /*sks_valid*/ 1, 5568 /*command*/ 0, 5569 /*field*/ 2, 5570 /*bit_valid*/ 0, 5571 /*bit*/ 0); 5572 goto bailout; 5573 } 5574 } 5575 } 5576 5577 /* 5578 * The format command will clear out the "Medium format corrupted" 5579 * status if set by the configuration code. That status is really 5580 * just a way to notify the host that we have lost the media, and 5581 * get them to issue a command that will basically make them think 5582 * they're blowing away the media. 5583 */ 5584 mtx_lock(&lun->lun_lock); 5585 lun->flags &= ~CTL_LUN_INOPERABLE; 5586 mtx_unlock(&lun->lun_lock); 5587 5588 ctl_set_success(ctsio); 5589bailout: 5590 5591 if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) { 5592 free(ctsio->kern_data_ptr, M_CTL); 5593 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED; 5594 } 5595 5596 ctl_done((union ctl_io *)ctsio); 5597 return (CTL_RETVAL_COMPLETE); 5598} 5599 5600int 5601ctl_read_buffer(struct ctl_scsiio *ctsio) 5602{ 5603 struct ctl_lun *lun; 5604 uint64_t buffer_offset; 5605 uint32_t len; 5606 uint8_t byte2; 5607 static uint8_t descr[4]; 5608 static uint8_t echo_descr[4] = { 0 }; 5609 5610 CTL_DEBUG_PRINT(("ctl_read_buffer\n")); 5611 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5612 switch (ctsio->cdb[0]) { 5613 case READ_BUFFER: { 5614 struct scsi_read_buffer *cdb; 5615 5616 cdb = (struct scsi_read_buffer *)ctsio->cdb; 5617 buffer_offset = scsi_3btoul(cdb->offset); 5618 len = scsi_3btoul(cdb->length); 5619 byte2 = cdb->byte2; 5620 break; 5621 } 5622 case READ_BUFFER_16: { 5623 struct scsi_read_buffer_16 *cdb; 5624 5625 cdb = (struct scsi_read_buffer_16 *)ctsio->cdb; 5626 buffer_offset = scsi_8btou64(cdb->offset); 5627 len = scsi_4btoul(cdb->length); 5628 byte2 = cdb->byte2; 5629 break; 5630 } 5631 default: /* This shouldn't happen. */ 5632 ctl_set_invalid_opcode(ctsio); 5633 ctl_done((union ctl_io *)ctsio); 5634 return (CTL_RETVAL_COMPLETE); 5635 } 5636 5637 if ((byte2 & RWB_MODE) != RWB_MODE_DATA && 5638 (byte2 & RWB_MODE) != RWB_MODE_ECHO_DESCR && 5639 (byte2 & RWB_MODE) != RWB_MODE_DESCR) { 5640 ctl_set_invalid_field(ctsio, 5641 /*sks_valid*/ 1, 5642 /*command*/ 1, 5643 /*field*/ 1, 5644 /*bit_valid*/ 1, 5645 /*bit*/ 4); 5646 ctl_done((union ctl_io *)ctsio); 5647 return (CTL_RETVAL_COMPLETE); 5648 } 5649 5650 if (buffer_offset > CTL_WRITE_BUFFER_SIZE || 5651 buffer_offset + len > CTL_WRITE_BUFFER_SIZE) { 5652 ctl_set_invalid_field(ctsio, 5653 /*sks_valid*/ 1, 5654 /*command*/ 1, 5655 /*field*/ 6, 5656 /*bit_valid*/ 0, 5657 /*bit*/ 0); 5658 ctl_done((union ctl_io *)ctsio); 5659 return (CTL_RETVAL_COMPLETE); 5660 } 5661 5662 if ((byte2 & RWB_MODE) == RWB_MODE_DESCR) { 5663 descr[0] = 0; 5664 scsi_ulto3b(CTL_WRITE_BUFFER_SIZE, &descr[1]); 5665 ctsio->kern_data_ptr = descr; 5666 len = min(len, sizeof(descr)); 5667 } else if ((byte2 & RWB_MODE) == RWB_MODE_ECHO_DESCR) { 5668 ctsio->kern_data_ptr = echo_descr; 5669 len = min(len, sizeof(echo_descr)); 5670 } else { 5671 if (lun->write_buffer == NULL) { 5672 lun->write_buffer = malloc(CTL_WRITE_BUFFER_SIZE, 5673 M_CTL, M_WAITOK); 5674 } 5675 ctsio->kern_data_ptr = lun->write_buffer + buffer_offset; 5676 } 5677 ctsio->kern_data_len = len; 5678 ctsio->kern_total_len = len; 5679 ctsio->kern_data_resid = 0; 5680 ctsio->kern_rel_offset = 0; 5681 ctsio->kern_sg_entries = 0; 5682 ctl_set_success(ctsio); 5683 ctsio->be_move_done = ctl_config_move_done; 5684 ctl_datamove((union ctl_io *)ctsio); 5685 return (CTL_RETVAL_COMPLETE); 5686} 5687 5688int 5689ctl_write_buffer(struct ctl_scsiio *ctsio) 5690{ 5691 struct scsi_write_buffer *cdb; 5692 struct ctl_lun *lun; 5693 int buffer_offset, len; 5694 5695 CTL_DEBUG_PRINT(("ctl_write_buffer\n")); 5696 5697 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5698 cdb = (struct scsi_write_buffer *)ctsio->cdb; 5699 5700 if ((cdb->byte2 & RWB_MODE) != RWB_MODE_DATA) { 5701 ctl_set_invalid_field(ctsio, 5702 /*sks_valid*/ 1, 5703 /*command*/ 1, 5704 /*field*/ 1, 5705 /*bit_valid*/ 1, 5706 /*bit*/ 4); 5707 ctl_done((union ctl_io *)ctsio); 5708 return (CTL_RETVAL_COMPLETE); 5709 } 5710 5711 len = scsi_3btoul(cdb->length); 5712 buffer_offset = scsi_3btoul(cdb->offset); 5713 5714 if (buffer_offset + len > CTL_WRITE_BUFFER_SIZE) { 5715 ctl_set_invalid_field(ctsio, 5716 /*sks_valid*/ 1, 5717 /*command*/ 1, 5718 /*field*/ 6, 5719 /*bit_valid*/ 0, 5720 /*bit*/ 0); 5721 ctl_done((union ctl_io *)ctsio); 5722 return (CTL_RETVAL_COMPLETE); 5723 } 5724 5725 /* 5726 * If we've got a kernel request that hasn't been malloced yet, 5727 * malloc it and tell the caller the data buffer is here. 5728 */ 5729 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 5730 if (lun->write_buffer == NULL) { 5731 lun->write_buffer = malloc(CTL_WRITE_BUFFER_SIZE, 5732 M_CTL, M_WAITOK); 5733 } 5734 ctsio->kern_data_ptr = lun->write_buffer + buffer_offset; 5735 ctsio->kern_data_len = len; 5736 ctsio->kern_total_len = len; 5737 ctsio->kern_data_resid = 0; 5738 ctsio->kern_rel_offset = 0; 5739 ctsio->kern_sg_entries = 0; 5740 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5741 ctsio->be_move_done = ctl_config_move_done; 5742 ctl_datamove((union ctl_io *)ctsio); 5743 5744 return (CTL_RETVAL_COMPLETE); 5745 } 5746 5747 ctl_set_success(ctsio); 5748 ctl_done((union ctl_io *)ctsio); 5749 return (CTL_RETVAL_COMPLETE); 5750} 5751 5752int 5753ctl_write_same(struct ctl_scsiio *ctsio) 5754{ 5755 struct ctl_lun *lun; 5756 struct ctl_lba_len_flags *lbalen; 5757 uint64_t lba; 5758 uint32_t num_blocks; 5759 int len, retval; 5760 uint8_t byte2; 5761 5762 retval = CTL_RETVAL_COMPLETE; 5763 5764 CTL_DEBUG_PRINT(("ctl_write_same\n")); 5765 5766 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5767 5768 switch (ctsio->cdb[0]) { 5769 case WRITE_SAME_10: { 5770 struct scsi_write_same_10 *cdb; 5771 5772 cdb = (struct scsi_write_same_10 *)ctsio->cdb; 5773 5774 lba = scsi_4btoul(cdb->addr); 5775 num_blocks = scsi_2btoul(cdb->length); 5776 byte2 = cdb->byte2; 5777 break; 5778 } 5779 case WRITE_SAME_16: { 5780 struct scsi_write_same_16 *cdb; 5781 5782 cdb = (struct scsi_write_same_16 *)ctsio->cdb; 5783 5784 lba = scsi_8btou64(cdb->addr); 5785 num_blocks = scsi_4btoul(cdb->length); 5786 byte2 = cdb->byte2; 5787 break; 5788 } 5789 default: 5790 /* 5791 * We got a command we don't support. This shouldn't 5792 * happen, commands should be filtered out above us. 5793 */ 5794 ctl_set_invalid_opcode(ctsio); 5795 ctl_done((union ctl_io *)ctsio); 5796 5797 return (CTL_RETVAL_COMPLETE); 5798 break; /* NOTREACHED */ 5799 } 5800 5801 /* ANCHOR flag can be used only together with UNMAP */ 5802 if ((byte2 & SWS_UNMAP) == 0 && (byte2 & SWS_ANCHOR) != 0) { 5803 ctl_set_invalid_field(ctsio, /*sks_valid*/ 1, 5804 /*command*/ 1, /*field*/ 1, /*bit_valid*/ 1, /*bit*/ 0); 5805 ctl_done((union ctl_io *)ctsio); 5806 return (CTL_RETVAL_COMPLETE); 5807 } 5808 5809 /* 5810 * The first check is to make sure we're in bounds, the second 5811 * check is to catch wrap-around problems. If the lba + num blocks 5812 * is less than the lba, then we've wrapped around and the block 5813 * range is invalid anyway. 5814 */ 5815 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 5816 || ((lba + num_blocks) < lba)) { 5817 ctl_set_lba_out_of_range(ctsio); 5818 ctl_done((union ctl_io *)ctsio); 5819 return (CTL_RETVAL_COMPLETE); 5820 } 5821 5822 /* Zero number of blocks means "to the last logical block" */ 5823 if (num_blocks == 0) { 5824 if ((lun->be_lun->maxlba + 1) - lba > UINT32_MAX) { 5825 ctl_set_invalid_field(ctsio, 5826 /*sks_valid*/ 0, 5827 /*command*/ 1, 5828 /*field*/ 0, 5829 /*bit_valid*/ 0, 5830 /*bit*/ 0); 5831 ctl_done((union ctl_io *)ctsio); 5832 return (CTL_RETVAL_COMPLETE); 5833 } 5834 num_blocks = (lun->be_lun->maxlba + 1) - lba; 5835 } 5836 5837 len = lun->be_lun->blocksize; 5838 5839 /* 5840 * If we've got a kernel request that hasn't been malloced yet, 5841 * malloc it and tell the caller the data buffer is here. 5842 */ 5843 if ((byte2 & SWS_NDOB) == 0 && 5844 (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 5845 ctsio->kern_data_ptr = malloc(len, M_CTL, M_WAITOK);; 5846 ctsio->kern_data_len = len; 5847 ctsio->kern_total_len = len; 5848 ctsio->kern_data_resid = 0; 5849 ctsio->kern_rel_offset = 0; 5850 ctsio->kern_sg_entries = 0; 5851 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5852 ctsio->be_move_done = ctl_config_move_done; 5853 ctl_datamove((union ctl_io *)ctsio); 5854 5855 return (CTL_RETVAL_COMPLETE); 5856 } 5857 5858 lbalen = (struct ctl_lba_len_flags *)&ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 5859 lbalen->lba = lba; 5860 lbalen->len = num_blocks; 5861 lbalen->flags = byte2; 5862 retval = lun->backend->config_write((union ctl_io *)ctsio); 5863 5864 return (retval); 5865} 5866 5867int 5868ctl_unmap(struct ctl_scsiio *ctsio) 5869{ 5870 struct ctl_lun *lun; 5871 struct scsi_unmap *cdb; 5872 struct ctl_ptr_len_flags *ptrlen; 5873 struct scsi_unmap_header *hdr; 5874 struct scsi_unmap_desc *buf, *end, *endnz, *range; 5875 uint64_t lba; 5876 uint32_t num_blocks; 5877 int len, retval; 5878 uint8_t byte2; 5879 5880 retval = CTL_RETVAL_COMPLETE; 5881 5882 CTL_DEBUG_PRINT(("ctl_unmap\n")); 5883 5884 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5885 cdb = (struct scsi_unmap *)ctsio->cdb; 5886 5887 len = scsi_2btoul(cdb->length); 5888 byte2 = cdb->byte2; 5889 5890 /* 5891 * If we've got a kernel request that hasn't been malloced yet, 5892 * malloc it and tell the caller the data buffer is here. 5893 */ 5894 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 5895 ctsio->kern_data_ptr = malloc(len, M_CTL, M_WAITOK);; 5896 ctsio->kern_data_len = len; 5897 ctsio->kern_total_len = len; 5898 ctsio->kern_data_resid = 0; 5899 ctsio->kern_rel_offset = 0; 5900 ctsio->kern_sg_entries = 0; 5901 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5902 ctsio->be_move_done = ctl_config_move_done; 5903 ctl_datamove((union ctl_io *)ctsio); 5904 5905 return (CTL_RETVAL_COMPLETE); 5906 } 5907 5908 len = ctsio->kern_total_len - ctsio->kern_data_resid; 5909 hdr = (struct scsi_unmap_header *)ctsio->kern_data_ptr; 5910 if (len < sizeof (*hdr) || 5911 len < (scsi_2btoul(hdr->length) + sizeof(hdr->length)) || 5912 len < (scsi_2btoul(hdr->desc_length) + sizeof (*hdr)) || 5913 scsi_2btoul(hdr->desc_length) % sizeof(*buf) != 0) { 5914 ctl_set_invalid_field(ctsio, 5915 /*sks_valid*/ 0, 5916 /*command*/ 0, 5917 /*field*/ 0, 5918 /*bit_valid*/ 0, 5919 /*bit*/ 0); 5920 goto done; 5921 } 5922 len = scsi_2btoul(hdr->desc_length); 5923 buf = (struct scsi_unmap_desc *)(hdr + 1); 5924 end = buf + len / sizeof(*buf); 5925 5926 endnz = buf; 5927 for (range = buf; range < end; range++) { 5928 lba = scsi_8btou64(range->lba); 5929 num_blocks = scsi_4btoul(range->length); 5930 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 5931 || ((lba + num_blocks) < lba)) { 5932 ctl_set_lba_out_of_range(ctsio); 5933 ctl_done((union ctl_io *)ctsio); 5934 return (CTL_RETVAL_COMPLETE); 5935 } 5936 if (num_blocks != 0) 5937 endnz = range + 1; 5938 } 5939 5940 /* 5941 * Block backend can not handle zero last range. 5942 * Filter it out and return if there is nothing left. 5943 */ 5944 len = (uint8_t *)endnz - (uint8_t *)buf; 5945 if (len == 0) { 5946 ctl_set_success(ctsio); 5947 goto done; 5948 } 5949 5950 mtx_lock(&lun->lun_lock); 5951 ptrlen = (struct ctl_ptr_len_flags *) 5952 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 5953 ptrlen->ptr = (void *)buf; 5954 ptrlen->len = len; 5955 ptrlen->flags = byte2; 5956 ctl_check_blocked(lun); 5957 mtx_unlock(&lun->lun_lock); 5958 5959 retval = lun->backend->config_write((union ctl_io *)ctsio); 5960 return (retval); 5961 5962done: 5963 if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) { 5964 free(ctsio->kern_data_ptr, M_CTL); 5965 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED; 5966 } 5967 ctl_done((union ctl_io *)ctsio); 5968 return (CTL_RETVAL_COMPLETE); 5969} 5970 5971/* 5972 * Note that this function currently doesn't actually do anything inside 5973 * CTL to enforce things if the DQue bit is turned on. 5974 * 5975 * Also note that this function can't be used in the default case, because 5976 * the DQue bit isn't set in the changeable mask for the control mode page 5977 * anyway. This is just here as an example for how to implement a page 5978 * handler, and a placeholder in case we want to allow the user to turn 5979 * tagged queueing on and off. 5980 * 5981 * The D_SENSE bit handling is functional, however, and will turn 5982 * descriptor sense on and off for a given LUN. 5983 */ 5984int 5985ctl_control_page_handler(struct ctl_scsiio *ctsio, 5986 struct ctl_page_index *page_index, uint8_t *page_ptr) 5987{ 5988 struct scsi_control_page *current_cp, *saved_cp, *user_cp; 5989 struct ctl_lun *lun; 5990 int set_ua; 5991 uint32_t initidx; 5992 5993 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5994 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 5995 set_ua = 0; 5996 5997 user_cp = (struct scsi_control_page *)page_ptr; 5998 current_cp = (struct scsi_control_page *) 5999 (page_index->page_data + (page_index->page_len * 6000 CTL_PAGE_CURRENT)); 6001 saved_cp = (struct scsi_control_page *) 6002 (page_index->page_data + (page_index->page_len * 6003 CTL_PAGE_SAVED)); 6004 6005 mtx_lock(&lun->lun_lock); 6006 if (((current_cp->rlec & SCP_DSENSE) == 0) 6007 && ((user_cp->rlec & SCP_DSENSE) != 0)) { 6008 /* 6009 * Descriptor sense is currently turned off and the user 6010 * wants to turn it on. 6011 */ 6012 current_cp->rlec |= SCP_DSENSE; 6013 saved_cp->rlec |= SCP_DSENSE; 6014 lun->flags |= CTL_LUN_SENSE_DESC; 6015 set_ua = 1; 6016 } else if (((current_cp->rlec & SCP_DSENSE) != 0) 6017 && ((user_cp->rlec & SCP_DSENSE) == 0)) { 6018 /* 6019 * Descriptor sense is currently turned on, and the user 6020 * wants to turn it off. 6021 */ 6022 current_cp->rlec &= ~SCP_DSENSE; 6023 saved_cp->rlec &= ~SCP_DSENSE; 6024 lun->flags &= ~CTL_LUN_SENSE_DESC; 6025 set_ua = 1; 6026 } 6027 if ((current_cp->queue_flags & SCP_QUEUE_ALG_MASK) != 6028 (user_cp->queue_flags & SCP_QUEUE_ALG_MASK)) { 6029 current_cp->queue_flags &= ~SCP_QUEUE_ALG_MASK; 6030 current_cp->queue_flags |= user_cp->queue_flags & SCP_QUEUE_ALG_MASK; 6031 saved_cp->queue_flags &= ~SCP_QUEUE_ALG_MASK; 6032 saved_cp->queue_flags |= user_cp->queue_flags & SCP_QUEUE_ALG_MASK; 6033 set_ua = 1; 6034 } 6035 if ((current_cp->eca_and_aen & SCP_SWP) != 6036 (user_cp->eca_and_aen & SCP_SWP)) { 6037 current_cp->eca_and_aen &= ~SCP_SWP; 6038 current_cp->eca_and_aen |= user_cp->eca_and_aen & SCP_SWP; 6039 saved_cp->eca_and_aen &= ~SCP_SWP; 6040 saved_cp->eca_and_aen |= user_cp->eca_and_aen & SCP_SWP; 6041 set_ua = 1; 6042 } 6043 if (set_ua != 0) 6044 ctl_est_ua_all(lun, initidx, CTL_UA_MODE_CHANGE); 6045 mtx_unlock(&lun->lun_lock); 6046 if (set_ua) { 6047 ctl_isc_announce_mode(lun, 6048 ctl_get_initindex(&ctsio->io_hdr.nexus), 6049 page_index->page_code, page_index->subpage); 6050 } 6051 return (0); 6052} 6053 6054int 6055ctl_caching_sp_handler(struct ctl_scsiio *ctsio, 6056 struct ctl_page_index *page_index, uint8_t *page_ptr) 6057{ 6058 struct scsi_caching_page *current_cp, *saved_cp, *user_cp; 6059 struct ctl_lun *lun; 6060 int set_ua; 6061 uint32_t initidx; 6062 6063 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6064 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 6065 set_ua = 0; 6066 6067 user_cp = (struct scsi_caching_page *)page_ptr; 6068 current_cp = (struct scsi_caching_page *) 6069 (page_index->page_data + (page_index->page_len * 6070 CTL_PAGE_CURRENT)); 6071 saved_cp = (struct scsi_caching_page *) 6072 (page_index->page_data + (page_index->page_len * 6073 CTL_PAGE_SAVED)); 6074 6075 mtx_lock(&lun->lun_lock); 6076 if ((current_cp->flags1 & (SCP_WCE | SCP_RCD)) != 6077 (user_cp->flags1 & (SCP_WCE | SCP_RCD))) { 6078 current_cp->flags1 &= ~(SCP_WCE | SCP_RCD); 6079 current_cp->flags1 |= user_cp->flags1 & (SCP_WCE | SCP_RCD); 6080 saved_cp->flags1 &= ~(SCP_WCE | SCP_RCD); 6081 saved_cp->flags1 |= user_cp->flags1 & (SCP_WCE | SCP_RCD); 6082 set_ua = 1; 6083 } 6084 if (set_ua != 0) 6085 ctl_est_ua_all(lun, initidx, CTL_UA_MODE_CHANGE); 6086 mtx_unlock(&lun->lun_lock); 6087 if (set_ua) { 6088 ctl_isc_announce_mode(lun, 6089 ctl_get_initindex(&ctsio->io_hdr.nexus), 6090 page_index->page_code, page_index->subpage); 6091 } 6092 return (0); 6093} 6094 6095int 6096ctl_debugconf_sp_select_handler(struct ctl_scsiio *ctsio, 6097 struct ctl_page_index *page_index, 6098 uint8_t *page_ptr) 6099{ 6100 uint8_t *c; 6101 int i; 6102 6103 c = ((struct copan_debugconf_subpage *)page_ptr)->ctl_time_io_secs; 6104 ctl_time_io_secs = 6105 (c[0] << 8) | 6106 (c[1] << 0) | 6107 0; 6108 CTL_DEBUG_PRINT(("set ctl_time_io_secs to %d\n", ctl_time_io_secs)); 6109 printf("set ctl_time_io_secs to %d\n", ctl_time_io_secs); 6110 printf("page data:"); 6111 for (i=0; i<8; i++) 6112 printf(" %.2x",page_ptr[i]); 6113 printf("\n"); 6114 return (0); 6115} 6116 6117int 6118ctl_debugconf_sp_sense_handler(struct ctl_scsiio *ctsio, 6119 struct ctl_page_index *page_index, 6120 int pc) 6121{ 6122 struct copan_debugconf_subpage *page; 6123 6124 page = (struct copan_debugconf_subpage *)page_index->page_data + 6125 (page_index->page_len * pc); 6126 6127 switch (pc) { 6128 case SMS_PAGE_CTRL_CHANGEABLE >> 6: 6129 case SMS_PAGE_CTRL_DEFAULT >> 6: 6130 case SMS_PAGE_CTRL_SAVED >> 6: 6131 /* 6132 * We don't update the changable or default bits for this page. 6133 */ 6134 break; 6135 case SMS_PAGE_CTRL_CURRENT >> 6: 6136 page->ctl_time_io_secs[0] = ctl_time_io_secs >> 8; 6137 page->ctl_time_io_secs[1] = ctl_time_io_secs >> 0; 6138 break; 6139 default: 6140#ifdef NEEDTOPORT 6141 EPRINT(0, "Invalid PC %d!!", pc); 6142#endif /* NEEDTOPORT */ 6143 break; 6144 } 6145 return (0); 6146} 6147 6148 6149static int 6150ctl_do_mode_select(union ctl_io *io) 6151{ 6152 struct scsi_mode_page_header *page_header; 6153 struct ctl_page_index *page_index; 6154 struct ctl_scsiio *ctsio; 6155 int control_dev, page_len; 6156 int page_len_offset, page_len_size; 6157 union ctl_modepage_info *modepage_info; 6158 struct ctl_lun *lun; 6159 int *len_left, *len_used; 6160 int retval, i; 6161 6162 ctsio = &io->scsiio; 6163 page_index = NULL; 6164 page_len = 0; 6165 retval = CTL_RETVAL_COMPLETE; 6166 6167 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6168 6169 if (lun->be_lun->lun_type != T_DIRECT) 6170 control_dev = 1; 6171 else 6172 control_dev = 0; 6173 6174 modepage_info = (union ctl_modepage_info *) 6175 ctsio->io_hdr.ctl_private[CTL_PRIV_MODEPAGE].bytes; 6176 len_left = &modepage_info->header.len_left; 6177 len_used = &modepage_info->header.len_used; 6178 6179do_next_page: 6180 6181 page_header = (struct scsi_mode_page_header *) 6182 (ctsio->kern_data_ptr + *len_used); 6183 6184 if (*len_left == 0) { 6185 free(ctsio->kern_data_ptr, M_CTL); 6186 ctl_set_success(ctsio); 6187 ctl_done((union ctl_io *)ctsio); 6188 return (CTL_RETVAL_COMPLETE); 6189 } else if (*len_left < sizeof(struct scsi_mode_page_header)) { 6190 6191 free(ctsio->kern_data_ptr, M_CTL); 6192 ctl_set_param_len_error(ctsio); 6193 ctl_done((union ctl_io *)ctsio); 6194 return (CTL_RETVAL_COMPLETE); 6195 6196 } else if ((page_header->page_code & SMPH_SPF) 6197 && (*len_left < sizeof(struct scsi_mode_page_header_sp))) { 6198 6199 free(ctsio->kern_data_ptr, M_CTL); 6200 ctl_set_param_len_error(ctsio); 6201 ctl_done((union ctl_io *)ctsio); 6202 return (CTL_RETVAL_COMPLETE); 6203 } 6204 6205 6206 /* 6207 * XXX KDM should we do something with the block descriptor? 6208 */ 6209 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6210 6211 if ((control_dev != 0) 6212 && (lun->mode_pages.index[i].page_flags & 6213 CTL_PAGE_FLAG_DISK_ONLY)) 6214 continue; 6215 6216 if ((lun->mode_pages.index[i].page_code & SMPH_PC_MASK) != 6217 (page_header->page_code & SMPH_PC_MASK)) 6218 continue; 6219 6220 /* 6221 * If neither page has a subpage code, then we've got a 6222 * match. 6223 */ 6224 if (((lun->mode_pages.index[i].page_code & SMPH_SPF) == 0) 6225 && ((page_header->page_code & SMPH_SPF) == 0)) { 6226 page_index = &lun->mode_pages.index[i]; 6227 page_len = page_header->page_length; 6228 break; 6229 } 6230 6231 /* 6232 * If both pages have subpages, then the subpage numbers 6233 * have to match. 6234 */ 6235 if ((lun->mode_pages.index[i].page_code & SMPH_SPF) 6236 && (page_header->page_code & SMPH_SPF)) { 6237 struct scsi_mode_page_header_sp *sph; 6238 6239 sph = (struct scsi_mode_page_header_sp *)page_header; 6240 6241 if (lun->mode_pages.index[i].subpage == 6242 sph->subpage) { 6243 page_index = &lun->mode_pages.index[i]; 6244 page_len = scsi_2btoul(sph->page_length); 6245 break; 6246 } 6247 } 6248 } 6249 6250 /* 6251 * If we couldn't find the page, or if we don't have a mode select 6252 * handler for it, send back an error to the user. 6253 */ 6254 if ((page_index == NULL) 6255 || (page_index->select_handler == NULL)) { 6256 ctl_set_invalid_field(ctsio, 6257 /*sks_valid*/ 1, 6258 /*command*/ 0, 6259 /*field*/ *len_used, 6260 /*bit_valid*/ 0, 6261 /*bit*/ 0); 6262 free(ctsio->kern_data_ptr, M_CTL); 6263 ctl_done((union ctl_io *)ctsio); 6264 return (CTL_RETVAL_COMPLETE); 6265 } 6266 6267 if (page_index->page_code & SMPH_SPF) { 6268 page_len_offset = 2; 6269 page_len_size = 2; 6270 } else { 6271 page_len_size = 1; 6272 page_len_offset = 1; 6273 } 6274 6275 /* 6276 * If the length the initiator gives us isn't the one we specify in 6277 * the mode page header, or if they didn't specify enough data in 6278 * the CDB to avoid truncating this page, kick out the request. 6279 */ 6280 if ((page_len != (page_index->page_len - page_len_offset - 6281 page_len_size)) 6282 || (*len_left < page_index->page_len)) { 6283 6284 6285 ctl_set_invalid_field(ctsio, 6286 /*sks_valid*/ 1, 6287 /*command*/ 0, 6288 /*field*/ *len_used + page_len_offset, 6289 /*bit_valid*/ 0, 6290 /*bit*/ 0); 6291 free(ctsio->kern_data_ptr, M_CTL); 6292 ctl_done((union ctl_io *)ctsio); 6293 return (CTL_RETVAL_COMPLETE); 6294 } 6295 6296 /* 6297 * Run through the mode page, checking to make sure that the bits 6298 * the user changed are actually legal for him to change. 6299 */ 6300 for (i = 0; i < page_index->page_len; i++) { 6301 uint8_t *user_byte, *change_mask, *current_byte; 6302 int bad_bit; 6303 int j; 6304 6305 user_byte = (uint8_t *)page_header + i; 6306 change_mask = page_index->page_data + 6307 (page_index->page_len * CTL_PAGE_CHANGEABLE) + i; 6308 current_byte = page_index->page_data + 6309 (page_index->page_len * CTL_PAGE_CURRENT) + i; 6310 6311 /* 6312 * Check to see whether the user set any bits in this byte 6313 * that he is not allowed to set. 6314 */ 6315 if ((*user_byte & ~(*change_mask)) == 6316 (*current_byte & ~(*change_mask))) 6317 continue; 6318 6319 /* 6320 * Go through bit by bit to determine which one is illegal. 6321 */ 6322 bad_bit = 0; 6323 for (j = 7; j >= 0; j--) { 6324 if ((((1 << i) & ~(*change_mask)) & *user_byte) != 6325 (((1 << i) & ~(*change_mask)) & *current_byte)) { 6326 bad_bit = i; 6327 break; 6328 } 6329 } 6330 ctl_set_invalid_field(ctsio, 6331 /*sks_valid*/ 1, 6332 /*command*/ 0, 6333 /*field*/ *len_used + i, 6334 /*bit_valid*/ 1, 6335 /*bit*/ bad_bit); 6336 free(ctsio->kern_data_ptr, M_CTL); 6337 ctl_done((union ctl_io *)ctsio); 6338 return (CTL_RETVAL_COMPLETE); 6339 } 6340 6341 /* 6342 * Decrement these before we call the page handler, since we may 6343 * end up getting called back one way or another before the handler 6344 * returns to this context. 6345 */ 6346 *len_left -= page_index->page_len; 6347 *len_used += page_index->page_len; 6348 6349 retval = page_index->select_handler(ctsio, page_index, 6350 (uint8_t *)page_header); 6351 6352 /* 6353 * If the page handler returns CTL_RETVAL_QUEUED, then we need to 6354 * wait until this queued command completes to finish processing 6355 * the mode page. If it returns anything other than 6356 * CTL_RETVAL_COMPLETE (e.g. CTL_RETVAL_ERROR), then it should have 6357 * already set the sense information, freed the data pointer, and 6358 * completed the io for us. 6359 */ 6360 if (retval != CTL_RETVAL_COMPLETE) 6361 goto bailout_no_done; 6362 6363 /* 6364 * If the initiator sent us more than one page, parse the next one. 6365 */ 6366 if (*len_left > 0) 6367 goto do_next_page; 6368 6369 ctl_set_success(ctsio); 6370 free(ctsio->kern_data_ptr, M_CTL); 6371 ctl_done((union ctl_io *)ctsio); 6372 6373bailout_no_done: 6374 6375 return (CTL_RETVAL_COMPLETE); 6376 6377} 6378 6379int 6380ctl_mode_select(struct ctl_scsiio *ctsio) 6381{ 6382 int param_len, pf, sp; 6383 int header_size, bd_len; 6384 int len_left, len_used; 6385 struct ctl_page_index *page_index; 6386 struct ctl_lun *lun; 6387 int control_dev, page_len; 6388 union ctl_modepage_info *modepage_info; 6389 int retval; 6390 6391 pf = 0; 6392 sp = 0; 6393 page_len = 0; 6394 len_used = 0; 6395 len_left = 0; 6396 retval = 0; 6397 bd_len = 0; 6398 page_index = NULL; 6399 6400 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6401 6402 if (lun->be_lun->lun_type != T_DIRECT) 6403 control_dev = 1; 6404 else 6405 control_dev = 0; 6406 6407 switch (ctsio->cdb[0]) { 6408 case MODE_SELECT_6: { 6409 struct scsi_mode_select_6 *cdb; 6410 6411 cdb = (struct scsi_mode_select_6 *)ctsio->cdb; 6412 6413 pf = (cdb->byte2 & SMS_PF) ? 1 : 0; 6414 sp = (cdb->byte2 & SMS_SP) ? 1 : 0; 6415 6416 param_len = cdb->length; 6417 header_size = sizeof(struct scsi_mode_header_6); 6418 break; 6419 } 6420 case MODE_SELECT_10: { 6421 struct scsi_mode_select_10 *cdb; 6422 6423 cdb = (struct scsi_mode_select_10 *)ctsio->cdb; 6424 6425 pf = (cdb->byte2 & SMS_PF) ? 1 : 0; 6426 sp = (cdb->byte2 & SMS_SP) ? 1 : 0; 6427 6428 param_len = scsi_2btoul(cdb->length); 6429 header_size = sizeof(struct scsi_mode_header_10); 6430 break; 6431 } 6432 default: 6433 ctl_set_invalid_opcode(ctsio); 6434 ctl_done((union ctl_io *)ctsio); 6435 return (CTL_RETVAL_COMPLETE); 6436 break; /* NOTREACHED */ 6437 } 6438 6439 /* 6440 * From SPC-3: 6441 * "A parameter list length of zero indicates that the Data-Out Buffer 6442 * shall be empty. This condition shall not be considered as an error." 6443 */ 6444 if (param_len == 0) { 6445 ctl_set_success(ctsio); 6446 ctl_done((union ctl_io *)ctsio); 6447 return (CTL_RETVAL_COMPLETE); 6448 } 6449 6450 /* 6451 * Since we'll hit this the first time through, prior to 6452 * allocation, we don't need to free a data buffer here. 6453 */ 6454 if (param_len < header_size) { 6455 ctl_set_param_len_error(ctsio); 6456 ctl_done((union ctl_io *)ctsio); 6457 return (CTL_RETVAL_COMPLETE); 6458 } 6459 6460 /* 6461 * Allocate the data buffer and grab the user's data. In theory, 6462 * we shouldn't have to sanity check the parameter list length here 6463 * because the maximum size is 64K. We should be able to malloc 6464 * that much without too many problems. 6465 */ 6466 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 6467 ctsio->kern_data_ptr = malloc(param_len, M_CTL, M_WAITOK); 6468 ctsio->kern_data_len = param_len; 6469 ctsio->kern_total_len = param_len; 6470 ctsio->kern_data_resid = 0; 6471 ctsio->kern_rel_offset = 0; 6472 ctsio->kern_sg_entries = 0; 6473 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6474 ctsio->be_move_done = ctl_config_move_done; 6475 ctl_datamove((union ctl_io *)ctsio); 6476 6477 return (CTL_RETVAL_COMPLETE); 6478 } 6479 6480 switch (ctsio->cdb[0]) { 6481 case MODE_SELECT_6: { 6482 struct scsi_mode_header_6 *mh6; 6483 6484 mh6 = (struct scsi_mode_header_6 *)ctsio->kern_data_ptr; 6485 bd_len = mh6->blk_desc_len; 6486 break; 6487 } 6488 case MODE_SELECT_10: { 6489 struct scsi_mode_header_10 *mh10; 6490 6491 mh10 = (struct scsi_mode_header_10 *)ctsio->kern_data_ptr; 6492 bd_len = scsi_2btoul(mh10->blk_desc_len); 6493 break; 6494 } 6495 default: 6496 panic("Invalid CDB type %#x", ctsio->cdb[0]); 6497 break; 6498 } 6499 6500 if (param_len < (header_size + bd_len)) { 6501 free(ctsio->kern_data_ptr, M_CTL); 6502 ctl_set_param_len_error(ctsio); 6503 ctl_done((union ctl_io *)ctsio); 6504 return (CTL_RETVAL_COMPLETE); 6505 } 6506 6507 /* 6508 * Set the IO_CONT flag, so that if this I/O gets passed to 6509 * ctl_config_write_done(), it'll get passed back to 6510 * ctl_do_mode_select() for further processing, or completion if 6511 * we're all done. 6512 */ 6513 ctsio->io_hdr.flags |= CTL_FLAG_IO_CONT; 6514 ctsio->io_cont = ctl_do_mode_select; 6515 6516 modepage_info = (union ctl_modepage_info *) 6517 ctsio->io_hdr.ctl_private[CTL_PRIV_MODEPAGE].bytes; 6518 6519 memset(modepage_info, 0, sizeof(*modepage_info)); 6520 6521 len_left = param_len - header_size - bd_len; 6522 len_used = header_size + bd_len; 6523 6524 modepage_info->header.len_left = len_left; 6525 modepage_info->header.len_used = len_used; 6526 6527 return (ctl_do_mode_select((union ctl_io *)ctsio)); 6528} 6529 6530int 6531ctl_mode_sense(struct ctl_scsiio *ctsio) 6532{ 6533 struct ctl_lun *lun; 6534 int pc, page_code, dbd, llba, subpage; 6535 int alloc_len, page_len, header_len, total_len; 6536 struct scsi_mode_block_descr *block_desc; 6537 struct ctl_page_index *page_index; 6538 int control_dev; 6539 6540 dbd = 0; 6541 llba = 0; 6542 block_desc = NULL; 6543 page_index = NULL; 6544 6545 CTL_DEBUG_PRINT(("ctl_mode_sense\n")); 6546 6547 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6548 6549 if (lun->be_lun->lun_type != T_DIRECT) 6550 control_dev = 1; 6551 else 6552 control_dev = 0; 6553 6554 switch (ctsio->cdb[0]) { 6555 case MODE_SENSE_6: { 6556 struct scsi_mode_sense_6 *cdb; 6557 6558 cdb = (struct scsi_mode_sense_6 *)ctsio->cdb; 6559 6560 header_len = sizeof(struct scsi_mode_hdr_6); 6561 if (cdb->byte2 & SMS_DBD) 6562 dbd = 1; 6563 else 6564 header_len += sizeof(struct scsi_mode_block_descr); 6565 6566 pc = (cdb->page & SMS_PAGE_CTRL_MASK) >> 6; 6567 page_code = cdb->page & SMS_PAGE_CODE; 6568 subpage = cdb->subpage; 6569 alloc_len = cdb->length; 6570 break; 6571 } 6572 case MODE_SENSE_10: { 6573 struct scsi_mode_sense_10 *cdb; 6574 6575 cdb = (struct scsi_mode_sense_10 *)ctsio->cdb; 6576 6577 header_len = sizeof(struct scsi_mode_hdr_10); 6578 6579 if (cdb->byte2 & SMS_DBD) 6580 dbd = 1; 6581 else 6582 header_len += sizeof(struct scsi_mode_block_descr); 6583 if (cdb->byte2 & SMS10_LLBAA) 6584 llba = 1; 6585 pc = (cdb->page & SMS_PAGE_CTRL_MASK) >> 6; 6586 page_code = cdb->page & SMS_PAGE_CODE; 6587 subpage = cdb->subpage; 6588 alloc_len = scsi_2btoul(cdb->length); 6589 break; 6590 } 6591 default: 6592 ctl_set_invalid_opcode(ctsio); 6593 ctl_done((union ctl_io *)ctsio); 6594 return (CTL_RETVAL_COMPLETE); 6595 break; /* NOTREACHED */ 6596 } 6597 6598 /* 6599 * We have to make a first pass through to calculate the size of 6600 * the pages that match the user's query. Then we allocate enough 6601 * memory to hold it, and actually copy the data into the buffer. 6602 */ 6603 switch (page_code) { 6604 case SMS_ALL_PAGES_PAGE: { 6605 int i; 6606 6607 page_len = 0; 6608 6609 /* 6610 * At the moment, values other than 0 and 0xff here are 6611 * reserved according to SPC-3. 6612 */ 6613 if ((subpage != SMS_SUBPAGE_PAGE_0) 6614 && (subpage != SMS_SUBPAGE_ALL)) { 6615 ctl_set_invalid_field(ctsio, 6616 /*sks_valid*/ 1, 6617 /*command*/ 1, 6618 /*field*/ 3, 6619 /*bit_valid*/ 0, 6620 /*bit*/ 0); 6621 ctl_done((union ctl_io *)ctsio); 6622 return (CTL_RETVAL_COMPLETE); 6623 } 6624 6625 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6626 if ((control_dev != 0) 6627 && (lun->mode_pages.index[i].page_flags & 6628 CTL_PAGE_FLAG_DISK_ONLY)) 6629 continue; 6630 6631 /* 6632 * We don't use this subpage if the user didn't 6633 * request all subpages. 6634 */ 6635 if ((lun->mode_pages.index[i].subpage != 0) 6636 && (subpage == SMS_SUBPAGE_PAGE_0)) 6637 continue; 6638 6639#if 0 6640 printf("found page %#x len %d\n", 6641 lun->mode_pages.index[i].page_code & 6642 SMPH_PC_MASK, 6643 lun->mode_pages.index[i].page_len); 6644#endif 6645 page_len += lun->mode_pages.index[i].page_len; 6646 } 6647 break; 6648 } 6649 default: { 6650 int i; 6651 6652 page_len = 0; 6653 6654 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6655 /* Look for the right page code */ 6656 if ((lun->mode_pages.index[i].page_code & 6657 SMPH_PC_MASK) != page_code) 6658 continue; 6659 6660 /* Look for the right subpage or the subpage wildcard*/ 6661 if ((lun->mode_pages.index[i].subpage != subpage) 6662 && (subpage != SMS_SUBPAGE_ALL)) 6663 continue; 6664 6665 /* Make sure the page is supported for this dev type */ 6666 if ((control_dev != 0) 6667 && (lun->mode_pages.index[i].page_flags & 6668 CTL_PAGE_FLAG_DISK_ONLY)) 6669 continue; 6670 6671#if 0 6672 printf("found page %#x len %d\n", 6673 lun->mode_pages.index[i].page_code & 6674 SMPH_PC_MASK, 6675 lun->mode_pages.index[i].page_len); 6676#endif 6677 6678 page_len += lun->mode_pages.index[i].page_len; 6679 } 6680 6681 if (page_len == 0) { 6682 ctl_set_invalid_field(ctsio, 6683 /*sks_valid*/ 1, 6684 /*command*/ 1, 6685 /*field*/ 2, 6686 /*bit_valid*/ 1, 6687 /*bit*/ 5); 6688 ctl_done((union ctl_io *)ctsio); 6689 return (CTL_RETVAL_COMPLETE); 6690 } 6691 break; 6692 } 6693 } 6694 6695 total_len = header_len + page_len; 6696#if 0 6697 printf("header_len = %d, page_len = %d, total_len = %d\n", 6698 header_len, page_len, total_len); 6699#endif 6700 6701 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 6702 ctsio->kern_sg_entries = 0; 6703 ctsio->kern_data_resid = 0; 6704 ctsio->kern_rel_offset = 0; 6705 if (total_len < alloc_len) { 6706 ctsio->residual = alloc_len - total_len; 6707 ctsio->kern_data_len = total_len; 6708 ctsio->kern_total_len = total_len; 6709 } else { 6710 ctsio->residual = 0; 6711 ctsio->kern_data_len = alloc_len; 6712 ctsio->kern_total_len = alloc_len; 6713 } 6714 6715 switch (ctsio->cdb[0]) { 6716 case MODE_SENSE_6: { 6717 struct scsi_mode_hdr_6 *header; 6718 6719 header = (struct scsi_mode_hdr_6 *)ctsio->kern_data_ptr; 6720 6721 header->datalen = MIN(total_len - 1, 254); 6722 if (control_dev == 0) { 6723 header->dev_specific = 0x10; /* DPOFUA */ 6724 if ((lun->be_lun->flags & CTL_LUN_FLAG_READONLY) || 6725 (lun->mode_pages.control_page[CTL_PAGE_CURRENT] 6726 .eca_and_aen & SCP_SWP) != 0) 6727 header->dev_specific |= 0x80; /* WP */ 6728 } 6729 if (dbd) 6730 header->block_descr_len = 0; 6731 else 6732 header->block_descr_len = 6733 sizeof(struct scsi_mode_block_descr); 6734 block_desc = (struct scsi_mode_block_descr *)&header[1]; 6735 break; 6736 } 6737 case MODE_SENSE_10: { 6738 struct scsi_mode_hdr_10 *header; 6739 int datalen; 6740 6741 header = (struct scsi_mode_hdr_10 *)ctsio->kern_data_ptr; 6742 6743 datalen = MIN(total_len - 2, 65533); 6744 scsi_ulto2b(datalen, header->datalen); 6745 if (control_dev == 0) { 6746 header->dev_specific = 0x10; /* DPOFUA */ 6747 if ((lun->be_lun->flags & CTL_LUN_FLAG_READONLY) || 6748 (lun->mode_pages.control_page[CTL_PAGE_CURRENT] 6749 .eca_and_aen & SCP_SWP) != 0) 6750 header->dev_specific |= 0x80; /* WP */ 6751 } 6752 if (dbd) 6753 scsi_ulto2b(0, header->block_descr_len); 6754 else 6755 scsi_ulto2b(sizeof(struct scsi_mode_block_descr), 6756 header->block_descr_len); 6757 block_desc = (struct scsi_mode_block_descr *)&header[1]; 6758 break; 6759 } 6760 default: 6761 panic("invalid CDB type %#x", ctsio->cdb[0]); 6762 break; /* NOTREACHED */ 6763 } 6764 6765 /* 6766 * If we've got a disk, use its blocksize in the block 6767 * descriptor. Otherwise, just set it to 0. 6768 */ 6769 if (dbd == 0) { 6770 if (control_dev == 0) 6771 scsi_ulto3b(lun->be_lun->blocksize, 6772 block_desc->block_len); 6773 else 6774 scsi_ulto3b(0, block_desc->block_len); 6775 } 6776 6777 switch (page_code) { 6778 case SMS_ALL_PAGES_PAGE: { 6779 int i, data_used; 6780 6781 data_used = header_len; 6782 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6783 struct ctl_page_index *page_index; 6784 6785 page_index = &lun->mode_pages.index[i]; 6786 6787 if ((control_dev != 0) 6788 && (page_index->page_flags & 6789 CTL_PAGE_FLAG_DISK_ONLY)) 6790 continue; 6791 6792 /* 6793 * We don't use this subpage if the user didn't 6794 * request all subpages. We already checked (above) 6795 * to make sure the user only specified a subpage 6796 * of 0 or 0xff in the SMS_ALL_PAGES_PAGE case. 6797 */ 6798 if ((page_index->subpage != 0) 6799 && (subpage == SMS_SUBPAGE_PAGE_0)) 6800 continue; 6801 6802 /* 6803 * Call the handler, if it exists, to update the 6804 * page to the latest values. 6805 */ 6806 if (page_index->sense_handler != NULL) 6807 page_index->sense_handler(ctsio, page_index,pc); 6808 6809 memcpy(ctsio->kern_data_ptr + data_used, 6810 page_index->page_data + 6811 (page_index->page_len * pc), 6812 page_index->page_len); 6813 data_used += page_index->page_len; 6814 } 6815 break; 6816 } 6817 default: { 6818 int i, data_used; 6819 6820 data_used = header_len; 6821 6822 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6823 struct ctl_page_index *page_index; 6824 6825 page_index = &lun->mode_pages.index[i]; 6826 6827 /* Look for the right page code */ 6828 if ((page_index->page_code & SMPH_PC_MASK) != page_code) 6829 continue; 6830 6831 /* Look for the right subpage or the subpage wildcard*/ 6832 if ((page_index->subpage != subpage) 6833 && (subpage != SMS_SUBPAGE_ALL)) 6834 continue; 6835 6836 /* Make sure the page is supported for this dev type */ 6837 if ((control_dev != 0) 6838 && (page_index->page_flags & 6839 CTL_PAGE_FLAG_DISK_ONLY)) 6840 continue; 6841 6842 /* 6843 * Call the handler, if it exists, to update the 6844 * page to the latest values. 6845 */ 6846 if (page_index->sense_handler != NULL) 6847 page_index->sense_handler(ctsio, page_index,pc); 6848 6849 memcpy(ctsio->kern_data_ptr + data_used, 6850 page_index->page_data + 6851 (page_index->page_len * pc), 6852 page_index->page_len); 6853 data_used += page_index->page_len; 6854 } 6855 break; 6856 } 6857 } 6858 6859 ctl_set_success(ctsio); 6860 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6861 ctsio->be_move_done = ctl_config_move_done; 6862 ctl_datamove((union ctl_io *)ctsio); 6863 return (CTL_RETVAL_COMPLETE); 6864} 6865 6866int 6867ctl_lbp_log_sense_handler(struct ctl_scsiio *ctsio, 6868 struct ctl_page_index *page_index, 6869 int pc) 6870{ 6871 struct ctl_lun *lun; 6872 struct scsi_log_param_header *phdr; 6873 uint8_t *data; 6874 uint64_t val; 6875 6876 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6877 data = page_index->page_data; 6878 6879 if (lun->backend->lun_attr != NULL && 6880 (val = lun->backend->lun_attr(lun->be_lun->be_lun, "blocksavail")) 6881 != UINT64_MAX) { 6882 phdr = (struct scsi_log_param_header *)data; 6883 scsi_ulto2b(0x0001, phdr->param_code); 6884 phdr->param_control = SLP_LBIN | SLP_LP; 6885 phdr->param_len = 8; 6886 data = (uint8_t *)(phdr + 1); 6887 scsi_ulto4b(val >> CTL_LBP_EXPONENT, data); 6888 data[4] = 0x02; /* per-pool */ 6889 data += phdr->param_len; 6890 } 6891 6892 if (lun->backend->lun_attr != NULL && 6893 (val = lun->backend->lun_attr(lun->be_lun->be_lun, "blocksused")) 6894 != UINT64_MAX) { 6895 phdr = (struct scsi_log_param_header *)data; 6896 scsi_ulto2b(0x0002, phdr->param_code); 6897 phdr->param_control = SLP_LBIN | SLP_LP; 6898 phdr->param_len = 8; 6899 data = (uint8_t *)(phdr + 1); 6900 scsi_ulto4b(val >> CTL_LBP_EXPONENT, data); 6901 data[4] = 0x01; /* per-LUN */ 6902 data += phdr->param_len; 6903 } 6904 6905 if (lun->backend->lun_attr != NULL && 6906 (val = lun->backend->lun_attr(lun->be_lun->be_lun, "poolblocksavail")) 6907 != UINT64_MAX) { 6908 phdr = (struct scsi_log_param_header *)data; 6909 scsi_ulto2b(0x00f1, phdr->param_code); 6910 phdr->param_control = SLP_LBIN | SLP_LP; 6911 phdr->param_len = 8; 6912 data = (uint8_t *)(phdr + 1); 6913 scsi_ulto4b(val >> CTL_LBP_EXPONENT, data); 6914 data[4] = 0x02; /* per-pool */ 6915 data += phdr->param_len; 6916 } 6917 6918 if (lun->backend->lun_attr != NULL && 6919 (val = lun->backend->lun_attr(lun->be_lun->be_lun, "poolblocksused")) 6920 != UINT64_MAX) { 6921 phdr = (struct scsi_log_param_header *)data; 6922 scsi_ulto2b(0x00f2, phdr->param_code); 6923 phdr->param_control = SLP_LBIN | SLP_LP; 6924 phdr->param_len = 8; 6925 data = (uint8_t *)(phdr + 1); 6926 scsi_ulto4b(val >> CTL_LBP_EXPONENT, data); 6927 data[4] = 0x02; /* per-pool */ 6928 data += phdr->param_len; 6929 } 6930 6931 page_index->page_len = data - page_index->page_data; 6932 return (0); 6933} 6934 6935int 6936ctl_sap_log_sense_handler(struct ctl_scsiio *ctsio, 6937 struct ctl_page_index *page_index, 6938 int pc) 6939{ 6940 struct ctl_lun *lun; 6941 struct stat_page *data; 6942 uint64_t rn, wn, rb, wb; 6943 struct bintime rt, wt; 6944 int i; 6945 6946 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6947 data = (struct stat_page *)page_index->page_data; 6948 6949 scsi_ulto2b(SLP_SAP, data->sap.hdr.param_code); 6950 data->sap.hdr.param_control = SLP_LBIN; 6951 data->sap.hdr.param_len = sizeof(struct scsi_log_stat_and_perf) - 6952 sizeof(struct scsi_log_param_header); 6953 rn = wn = rb = wb = 0; 6954 bintime_clear(&rt); 6955 bintime_clear(&wt); 6956 for (i = 0; i < CTL_MAX_PORTS; i++) { 6957 rn += lun->stats.ports[i].operations[CTL_STATS_READ]; 6958 wn += lun->stats.ports[i].operations[CTL_STATS_WRITE]; 6959 rb += lun->stats.ports[i].bytes[CTL_STATS_READ]; 6960 wb += lun->stats.ports[i].bytes[CTL_STATS_WRITE]; 6961 bintime_add(&rt, &lun->stats.ports[i].time[CTL_STATS_READ]); 6962 bintime_add(&wt, &lun->stats.ports[i].time[CTL_STATS_WRITE]); 6963 } 6964 scsi_u64to8b(rn, data->sap.read_num); 6965 scsi_u64to8b(wn, data->sap.write_num); 6966 if (lun->stats.blocksize > 0) { 6967 scsi_u64to8b(wb / lun->stats.blocksize, 6968 data->sap.recvieved_lba); 6969 scsi_u64to8b(rb / lun->stats.blocksize, 6970 data->sap.transmitted_lba); 6971 } 6972 scsi_u64to8b((uint64_t)rt.sec * 1000 + rt.frac / (UINT64_MAX / 1000), 6973 data->sap.read_int); 6974 scsi_u64to8b((uint64_t)wt.sec * 1000 + wt.frac / (UINT64_MAX / 1000), 6975 data->sap.write_int); 6976 scsi_u64to8b(0, data->sap.weighted_num); 6977 scsi_u64to8b(0, data->sap.weighted_int); 6978 scsi_ulto2b(SLP_IT, data->it.hdr.param_code); 6979 data->it.hdr.param_control = SLP_LBIN; 6980 data->it.hdr.param_len = sizeof(struct scsi_log_idle_time) - 6981 sizeof(struct scsi_log_param_header); 6982#ifdef CTL_TIME_IO 6983 scsi_u64to8b(lun->idle_time / SBT_1MS, data->it.idle_int); 6984#endif 6985 scsi_ulto2b(SLP_TI, data->ti.hdr.param_code); 6986 data->it.hdr.param_control = SLP_LBIN; 6987 data->ti.hdr.param_len = sizeof(struct scsi_log_time_interval) - 6988 sizeof(struct scsi_log_param_header); 6989 scsi_ulto4b(3, data->ti.exponent); 6990 scsi_ulto4b(1, data->ti.integer); 6991 6992 page_index->page_len = sizeof(*data); 6993 return (0); 6994} 6995 6996int 6997ctl_log_sense(struct ctl_scsiio *ctsio) 6998{ 6999 struct ctl_lun *lun; 7000 int i, pc, page_code, subpage; 7001 int alloc_len, total_len; 7002 struct ctl_page_index *page_index; 7003 struct scsi_log_sense *cdb; 7004 struct scsi_log_header *header; 7005 7006 CTL_DEBUG_PRINT(("ctl_log_sense\n")); 7007 7008 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7009 cdb = (struct scsi_log_sense *)ctsio->cdb; 7010 pc = (cdb->page & SLS_PAGE_CTRL_MASK) >> 6; 7011 page_code = cdb->page & SLS_PAGE_CODE; 7012 subpage = cdb->subpage; 7013 alloc_len = scsi_2btoul(cdb->length); 7014 7015 page_index = NULL; 7016 for (i = 0; i < CTL_NUM_LOG_PAGES; i++) { 7017 page_index = &lun->log_pages.index[i]; 7018 7019 /* Look for the right page code */ 7020 if ((page_index->page_code & SL_PAGE_CODE) != page_code) 7021 continue; 7022 7023 /* Look for the right subpage or the subpage wildcard*/ 7024 if (page_index->subpage != subpage) 7025 continue; 7026 7027 break; 7028 } 7029 if (i >= CTL_NUM_LOG_PAGES) { 7030 ctl_set_invalid_field(ctsio, 7031 /*sks_valid*/ 1, 7032 /*command*/ 1, 7033 /*field*/ 2, 7034 /*bit_valid*/ 0, 7035 /*bit*/ 0); 7036 ctl_done((union ctl_io *)ctsio); 7037 return (CTL_RETVAL_COMPLETE); 7038 } 7039 7040 total_len = sizeof(struct scsi_log_header) + page_index->page_len; 7041 7042 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7043 ctsio->kern_sg_entries = 0; 7044 ctsio->kern_data_resid = 0; 7045 ctsio->kern_rel_offset = 0; 7046 if (total_len < alloc_len) { 7047 ctsio->residual = alloc_len - total_len; 7048 ctsio->kern_data_len = total_len; 7049 ctsio->kern_total_len = total_len; 7050 } else { 7051 ctsio->residual = 0; 7052 ctsio->kern_data_len = alloc_len; 7053 ctsio->kern_total_len = alloc_len; 7054 } 7055 7056 header = (struct scsi_log_header *)ctsio->kern_data_ptr; 7057 header->page = page_index->page_code; 7058 if (page_index->subpage) { 7059 header->page |= SL_SPF; 7060 header->subpage = page_index->subpage; 7061 } 7062 scsi_ulto2b(page_index->page_len, header->datalen); 7063 7064 /* 7065 * Call the handler, if it exists, to update the 7066 * page to the latest values. 7067 */ 7068 if (page_index->sense_handler != NULL) 7069 page_index->sense_handler(ctsio, page_index, pc); 7070 7071 memcpy(header + 1, page_index->page_data, page_index->page_len); 7072 7073 ctl_set_success(ctsio); 7074 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7075 ctsio->be_move_done = ctl_config_move_done; 7076 ctl_datamove((union ctl_io *)ctsio); 7077 return (CTL_RETVAL_COMPLETE); 7078} 7079 7080int 7081ctl_read_capacity(struct ctl_scsiio *ctsio) 7082{ 7083 struct scsi_read_capacity *cdb; 7084 struct scsi_read_capacity_data *data; 7085 struct ctl_lun *lun; 7086 uint32_t lba; 7087 7088 CTL_DEBUG_PRINT(("ctl_read_capacity\n")); 7089 7090 cdb = (struct scsi_read_capacity *)ctsio->cdb; 7091 7092 lba = scsi_4btoul(cdb->addr); 7093 if (((cdb->pmi & SRC_PMI) == 0) 7094 && (lba != 0)) { 7095 ctl_set_invalid_field(/*ctsio*/ ctsio, 7096 /*sks_valid*/ 1, 7097 /*command*/ 1, 7098 /*field*/ 2, 7099 /*bit_valid*/ 0, 7100 /*bit*/ 0); 7101 ctl_done((union ctl_io *)ctsio); 7102 return (CTL_RETVAL_COMPLETE); 7103 } 7104 7105 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7106 7107 ctsio->kern_data_ptr = malloc(sizeof(*data), M_CTL, M_WAITOK | M_ZERO); 7108 data = (struct scsi_read_capacity_data *)ctsio->kern_data_ptr; 7109 ctsio->residual = 0; 7110 ctsio->kern_data_len = sizeof(*data); 7111 ctsio->kern_total_len = sizeof(*data); 7112 ctsio->kern_data_resid = 0; 7113 ctsio->kern_rel_offset = 0; 7114 ctsio->kern_sg_entries = 0; 7115 7116 /* 7117 * If the maximum LBA is greater than 0xfffffffe, the user must 7118 * issue a SERVICE ACTION IN (16) command, with the read capacity 7119 * serivce action set. 7120 */ 7121 if (lun->be_lun->maxlba > 0xfffffffe) 7122 scsi_ulto4b(0xffffffff, data->addr); 7123 else 7124 scsi_ulto4b(lun->be_lun->maxlba, data->addr); 7125 7126 /* 7127 * XXX KDM this may not be 512 bytes... 7128 */ 7129 scsi_ulto4b(lun->be_lun->blocksize, data->length); 7130 7131 ctl_set_success(ctsio); 7132 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7133 ctsio->be_move_done = ctl_config_move_done; 7134 ctl_datamove((union ctl_io *)ctsio); 7135 return (CTL_RETVAL_COMPLETE); 7136} 7137 7138int 7139ctl_read_capacity_16(struct ctl_scsiio *ctsio) 7140{ 7141 struct scsi_read_capacity_16 *cdb; 7142 struct scsi_read_capacity_data_long *data; 7143 struct ctl_lun *lun; 7144 uint64_t lba; 7145 uint32_t alloc_len; 7146 7147 CTL_DEBUG_PRINT(("ctl_read_capacity_16\n")); 7148 7149 cdb = (struct scsi_read_capacity_16 *)ctsio->cdb; 7150 7151 alloc_len = scsi_4btoul(cdb->alloc_len); 7152 lba = scsi_8btou64(cdb->addr); 7153 7154 if ((cdb->reladr & SRC16_PMI) 7155 && (lba != 0)) { 7156 ctl_set_invalid_field(/*ctsio*/ ctsio, 7157 /*sks_valid*/ 1, 7158 /*command*/ 1, 7159 /*field*/ 2, 7160 /*bit_valid*/ 0, 7161 /*bit*/ 0); 7162 ctl_done((union ctl_io *)ctsio); 7163 return (CTL_RETVAL_COMPLETE); 7164 } 7165 7166 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7167 7168 ctsio->kern_data_ptr = malloc(sizeof(*data), M_CTL, M_WAITOK | M_ZERO); 7169 data = (struct scsi_read_capacity_data_long *)ctsio->kern_data_ptr; 7170 7171 if (sizeof(*data) < alloc_len) { 7172 ctsio->residual = alloc_len - sizeof(*data); 7173 ctsio->kern_data_len = sizeof(*data); 7174 ctsio->kern_total_len = sizeof(*data); 7175 } else { 7176 ctsio->residual = 0; 7177 ctsio->kern_data_len = alloc_len; 7178 ctsio->kern_total_len = alloc_len; 7179 } 7180 ctsio->kern_data_resid = 0; 7181 ctsio->kern_rel_offset = 0; 7182 ctsio->kern_sg_entries = 0; 7183 7184 scsi_u64to8b(lun->be_lun->maxlba, data->addr); 7185 /* XXX KDM this may not be 512 bytes... */ 7186 scsi_ulto4b(lun->be_lun->blocksize, data->length); 7187 data->prot_lbppbe = lun->be_lun->pblockexp & SRC16_LBPPBE; 7188 scsi_ulto2b(lun->be_lun->pblockoff & SRC16_LALBA_A, data->lalba_lbp); 7189 if (lun->be_lun->flags & CTL_LUN_FLAG_UNMAP) 7190 data->lalba_lbp[0] |= SRC16_LBPME | SRC16_LBPRZ; 7191 7192 ctl_set_success(ctsio); 7193 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7194 ctsio->be_move_done = ctl_config_move_done; 7195 ctl_datamove((union ctl_io *)ctsio); 7196 return (CTL_RETVAL_COMPLETE); 7197} 7198 7199int 7200ctl_get_lba_status(struct ctl_scsiio *ctsio) 7201{ 7202 struct scsi_get_lba_status *cdb; 7203 struct scsi_get_lba_status_data *data; 7204 struct ctl_lun *lun; 7205 struct ctl_lba_len_flags *lbalen; 7206 uint64_t lba; 7207 uint32_t alloc_len, total_len; 7208 int retval; 7209 7210 CTL_DEBUG_PRINT(("ctl_get_lba_status\n")); 7211 7212 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7213 cdb = (struct scsi_get_lba_status *)ctsio->cdb; 7214 lba = scsi_8btou64(cdb->addr); 7215 alloc_len = scsi_4btoul(cdb->alloc_len); 7216 7217 if (lba > lun->be_lun->maxlba) { 7218 ctl_set_lba_out_of_range(ctsio); 7219 ctl_done((union ctl_io *)ctsio); 7220 return (CTL_RETVAL_COMPLETE); 7221 } 7222 7223 total_len = sizeof(*data) + sizeof(data->descr[0]); 7224 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7225 data = (struct scsi_get_lba_status_data *)ctsio->kern_data_ptr; 7226 7227 if (total_len < alloc_len) { 7228 ctsio->residual = alloc_len - total_len; 7229 ctsio->kern_data_len = total_len; 7230 ctsio->kern_total_len = total_len; 7231 } else { 7232 ctsio->residual = 0; 7233 ctsio->kern_data_len = alloc_len; 7234 ctsio->kern_total_len = alloc_len; 7235 } 7236 ctsio->kern_data_resid = 0; 7237 ctsio->kern_rel_offset = 0; 7238 ctsio->kern_sg_entries = 0; 7239 7240 /* Fill dummy data in case backend can't tell anything. */ 7241 scsi_ulto4b(4 + sizeof(data->descr[0]), data->length); 7242 scsi_u64to8b(lba, data->descr[0].addr); 7243 scsi_ulto4b(MIN(UINT32_MAX, lun->be_lun->maxlba + 1 - lba), 7244 data->descr[0].length); 7245 data->descr[0].status = 0; /* Mapped or unknown. */ 7246 7247 ctl_set_success(ctsio); 7248 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7249 ctsio->be_move_done = ctl_config_move_done; 7250 7251 lbalen = (struct ctl_lba_len_flags *)&ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 7252 lbalen->lba = lba; 7253 lbalen->len = total_len; 7254 lbalen->flags = 0; 7255 retval = lun->backend->config_read((union ctl_io *)ctsio); 7256 return (CTL_RETVAL_COMPLETE); 7257} 7258 7259int 7260ctl_read_defect(struct ctl_scsiio *ctsio) 7261{ 7262 struct scsi_read_defect_data_10 *ccb10; 7263 struct scsi_read_defect_data_12 *ccb12; 7264 struct scsi_read_defect_data_hdr_10 *data10; 7265 struct scsi_read_defect_data_hdr_12 *data12; 7266 uint32_t alloc_len, data_len; 7267 uint8_t format; 7268 7269 CTL_DEBUG_PRINT(("ctl_read_defect\n")); 7270 7271 if (ctsio->cdb[0] == READ_DEFECT_DATA_10) { 7272 ccb10 = (struct scsi_read_defect_data_10 *)&ctsio->cdb; 7273 format = ccb10->format; 7274 alloc_len = scsi_2btoul(ccb10->alloc_length); 7275 data_len = sizeof(*data10); 7276 } else { 7277 ccb12 = (struct scsi_read_defect_data_12 *)&ctsio->cdb; 7278 format = ccb12->format; 7279 alloc_len = scsi_4btoul(ccb12->alloc_length); 7280 data_len = sizeof(*data12); 7281 } 7282 if (alloc_len == 0) { 7283 ctl_set_success(ctsio); 7284 ctl_done((union ctl_io *)ctsio); 7285 return (CTL_RETVAL_COMPLETE); 7286 } 7287 7288 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 7289 if (data_len < alloc_len) { 7290 ctsio->residual = alloc_len - data_len; 7291 ctsio->kern_data_len = data_len; 7292 ctsio->kern_total_len = data_len; 7293 } else { 7294 ctsio->residual = 0; 7295 ctsio->kern_data_len = alloc_len; 7296 ctsio->kern_total_len = alloc_len; 7297 } 7298 ctsio->kern_data_resid = 0; 7299 ctsio->kern_rel_offset = 0; 7300 ctsio->kern_sg_entries = 0; 7301 7302 if (ctsio->cdb[0] == READ_DEFECT_DATA_10) { 7303 data10 = (struct scsi_read_defect_data_hdr_10 *) 7304 ctsio->kern_data_ptr; 7305 data10->format = format; 7306 scsi_ulto2b(0, data10->length); 7307 } else { 7308 data12 = (struct scsi_read_defect_data_hdr_12 *) 7309 ctsio->kern_data_ptr; 7310 data12->format = format; 7311 scsi_ulto2b(0, data12->generation); 7312 scsi_ulto4b(0, data12->length); 7313 } 7314 7315 ctl_set_success(ctsio); 7316 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7317 ctsio->be_move_done = ctl_config_move_done; 7318 ctl_datamove((union ctl_io *)ctsio); 7319 return (CTL_RETVAL_COMPLETE); 7320} 7321 7322int 7323ctl_report_tagret_port_groups(struct ctl_scsiio *ctsio) 7324{ 7325 struct scsi_maintenance_in *cdb; 7326 int retval; 7327 int alloc_len, ext, total_len = 0, g, pc, pg, gs, os; 7328 int num_target_port_groups, num_target_ports; 7329 struct ctl_lun *lun; 7330 struct ctl_softc *softc; 7331 struct ctl_port *port; 7332 struct scsi_target_group_data *rtg_ptr; 7333 struct scsi_target_group_data_extended *rtg_ext_ptr; 7334 struct scsi_target_port_group_descriptor *tpg_desc; 7335 7336 CTL_DEBUG_PRINT(("ctl_report_tagret_port_groups\n")); 7337 7338 cdb = (struct scsi_maintenance_in *)ctsio->cdb; 7339 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7340 softc = lun->ctl_softc; 7341 7342 retval = CTL_RETVAL_COMPLETE; 7343 7344 switch (cdb->byte2 & STG_PDF_MASK) { 7345 case STG_PDF_LENGTH: 7346 ext = 0; 7347 break; 7348 case STG_PDF_EXTENDED: 7349 ext = 1; 7350 break; 7351 default: 7352 ctl_set_invalid_field(/*ctsio*/ ctsio, 7353 /*sks_valid*/ 1, 7354 /*command*/ 1, 7355 /*field*/ 2, 7356 /*bit_valid*/ 1, 7357 /*bit*/ 5); 7358 ctl_done((union ctl_io *)ctsio); 7359 return(retval); 7360 } 7361 7362 if (softc->is_single) 7363 num_target_port_groups = 1; 7364 else 7365 num_target_port_groups = NUM_TARGET_PORT_GROUPS; 7366 num_target_ports = 0; 7367 mtx_lock(&softc->ctl_lock); 7368 STAILQ_FOREACH(port, &softc->port_list, links) { 7369 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 7370 continue; 7371 if (ctl_lun_map_to_port(port, lun->lun) >= CTL_MAX_LUNS) 7372 continue; 7373 num_target_ports++; 7374 } 7375 mtx_unlock(&softc->ctl_lock); 7376 7377 if (ext) 7378 total_len = sizeof(struct scsi_target_group_data_extended); 7379 else 7380 total_len = sizeof(struct scsi_target_group_data); 7381 total_len += sizeof(struct scsi_target_port_group_descriptor) * 7382 num_target_port_groups + 7383 sizeof(struct scsi_target_port_descriptor) * num_target_ports; 7384 7385 alloc_len = scsi_4btoul(cdb->length); 7386 7387 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7388 7389 ctsio->kern_sg_entries = 0; 7390 7391 if (total_len < alloc_len) { 7392 ctsio->residual = alloc_len - total_len; 7393 ctsio->kern_data_len = total_len; 7394 ctsio->kern_total_len = total_len; 7395 } else { 7396 ctsio->residual = 0; 7397 ctsio->kern_data_len = alloc_len; 7398 ctsio->kern_total_len = alloc_len; 7399 } 7400 ctsio->kern_data_resid = 0; 7401 ctsio->kern_rel_offset = 0; 7402 7403 if (ext) { 7404 rtg_ext_ptr = (struct scsi_target_group_data_extended *) 7405 ctsio->kern_data_ptr; 7406 scsi_ulto4b(total_len - 4, rtg_ext_ptr->length); 7407 rtg_ext_ptr->format_type = 0x10; 7408 rtg_ext_ptr->implicit_transition_time = 0; 7409 tpg_desc = &rtg_ext_ptr->groups[0]; 7410 } else { 7411 rtg_ptr = (struct scsi_target_group_data *) 7412 ctsio->kern_data_ptr; 7413 scsi_ulto4b(total_len - 4, rtg_ptr->length); 7414 tpg_desc = &rtg_ptr->groups[0]; 7415 } 7416 7417 mtx_lock(&softc->ctl_lock); 7418 pg = softc->port_min / softc->port_cnt; 7419 if (softc->ha_link == CTL_HA_LINK_OFFLINE) 7420 gs = TPG_ASYMMETRIC_ACCESS_UNAVAILABLE; 7421 else if (softc->ha_link == CTL_HA_LINK_UNKNOWN) 7422 gs = TPG_ASYMMETRIC_ACCESS_TRANSITIONING; 7423 else if (softc->ha_mode == CTL_HA_MODE_ACT_STBY) 7424 gs = TPG_ASYMMETRIC_ACCESS_STANDBY; 7425 else 7426 gs = TPG_ASYMMETRIC_ACCESS_NONOPTIMIZED; 7427 if (lun->flags & CTL_LUN_PRIMARY_SC) { 7428 os = gs; 7429 gs = TPG_ASYMMETRIC_ACCESS_OPTIMIZED; 7430 } else 7431 os = TPG_ASYMMETRIC_ACCESS_OPTIMIZED; 7432 for (g = 0; g < num_target_port_groups; g++) { 7433 tpg_desc->pref_state = (g == pg) ? gs : os; 7434 tpg_desc->support = TPG_AO_SUP | TPG_AN_SUP | TPG_S_SUP | 7435 TPG_U_SUP | TPG_T_SUP; 7436 scsi_ulto2b(g + 1, tpg_desc->target_port_group); 7437 tpg_desc->status = TPG_IMPLICIT; 7438 pc = 0; 7439 STAILQ_FOREACH(port, &softc->port_list, links) { 7440 if (port->targ_port < g * softc->port_cnt || 7441 port->targ_port >= (g + 1) * softc->port_cnt) 7442 continue; 7443 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 7444 continue; 7445 if (ctl_lun_map_to_port(port, lun->lun) >= CTL_MAX_LUNS) 7446 continue; 7447 scsi_ulto2b(port->targ_port, tpg_desc->descriptors[pc]. 7448 relative_target_port_identifier); 7449 pc++; 7450 } 7451 tpg_desc->target_port_count = pc; 7452 tpg_desc = (struct scsi_target_port_group_descriptor *) 7453 &tpg_desc->descriptors[pc]; 7454 } 7455 mtx_unlock(&softc->ctl_lock); 7456 7457 ctl_set_success(ctsio); 7458 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7459 ctsio->be_move_done = ctl_config_move_done; 7460 ctl_datamove((union ctl_io *)ctsio); 7461 return(retval); 7462} 7463 7464int 7465ctl_report_supported_opcodes(struct ctl_scsiio *ctsio) 7466{ 7467 struct ctl_lun *lun; 7468 struct scsi_report_supported_opcodes *cdb; 7469 const struct ctl_cmd_entry *entry, *sentry; 7470 struct scsi_report_supported_opcodes_all *all; 7471 struct scsi_report_supported_opcodes_descr *descr; 7472 struct scsi_report_supported_opcodes_one *one; 7473 int retval; 7474 int alloc_len, total_len; 7475 int opcode, service_action, i, j, num; 7476 7477 CTL_DEBUG_PRINT(("ctl_report_supported_opcodes\n")); 7478 7479 cdb = (struct scsi_report_supported_opcodes *)ctsio->cdb; 7480 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7481 7482 retval = CTL_RETVAL_COMPLETE; 7483 7484 opcode = cdb->requested_opcode; 7485 service_action = scsi_2btoul(cdb->requested_service_action); 7486 switch (cdb->options & RSO_OPTIONS_MASK) { 7487 case RSO_OPTIONS_ALL: 7488 num = 0; 7489 for (i = 0; i < 256; i++) { 7490 entry = &ctl_cmd_table[i]; 7491 if (entry->flags & CTL_CMD_FLAG_SA5) { 7492 for (j = 0; j < 32; j++) { 7493 sentry = &((const struct ctl_cmd_entry *) 7494 entry->execute)[j]; 7495 if (ctl_cmd_applicable( 7496 lun->be_lun->lun_type, sentry)) 7497 num++; 7498 } 7499 } else { 7500 if (ctl_cmd_applicable(lun->be_lun->lun_type, 7501 entry)) 7502 num++; 7503 } 7504 } 7505 total_len = sizeof(struct scsi_report_supported_opcodes_all) + 7506 num * sizeof(struct scsi_report_supported_opcodes_descr); 7507 break; 7508 case RSO_OPTIONS_OC: 7509 if (ctl_cmd_table[opcode].flags & CTL_CMD_FLAG_SA5) { 7510 ctl_set_invalid_field(/*ctsio*/ ctsio, 7511 /*sks_valid*/ 1, 7512 /*command*/ 1, 7513 /*field*/ 2, 7514 /*bit_valid*/ 1, 7515 /*bit*/ 2); 7516 ctl_done((union ctl_io *)ctsio); 7517 return (CTL_RETVAL_COMPLETE); 7518 } 7519 total_len = sizeof(struct scsi_report_supported_opcodes_one) + 32; 7520 break; 7521 case RSO_OPTIONS_OC_SA: 7522 if ((ctl_cmd_table[opcode].flags & CTL_CMD_FLAG_SA5) == 0 || 7523 service_action >= 32) { 7524 ctl_set_invalid_field(/*ctsio*/ ctsio, 7525 /*sks_valid*/ 1, 7526 /*command*/ 1, 7527 /*field*/ 2, 7528 /*bit_valid*/ 1, 7529 /*bit*/ 2); 7530 ctl_done((union ctl_io *)ctsio); 7531 return (CTL_RETVAL_COMPLETE); 7532 } 7533 total_len = sizeof(struct scsi_report_supported_opcodes_one) + 32; 7534 break; 7535 default: 7536 ctl_set_invalid_field(/*ctsio*/ ctsio, 7537 /*sks_valid*/ 1, 7538 /*command*/ 1, 7539 /*field*/ 2, 7540 /*bit_valid*/ 1, 7541 /*bit*/ 2); 7542 ctl_done((union ctl_io *)ctsio); 7543 return (CTL_RETVAL_COMPLETE); 7544 } 7545 7546 alloc_len = scsi_4btoul(cdb->length); 7547 7548 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7549 7550 ctsio->kern_sg_entries = 0; 7551 7552 if (total_len < alloc_len) { 7553 ctsio->residual = alloc_len - total_len; 7554 ctsio->kern_data_len = total_len; 7555 ctsio->kern_total_len = total_len; 7556 } else { 7557 ctsio->residual = 0; 7558 ctsio->kern_data_len = alloc_len; 7559 ctsio->kern_total_len = alloc_len; 7560 } 7561 ctsio->kern_data_resid = 0; 7562 ctsio->kern_rel_offset = 0; 7563 7564 switch (cdb->options & RSO_OPTIONS_MASK) { 7565 case RSO_OPTIONS_ALL: 7566 all = (struct scsi_report_supported_opcodes_all *) 7567 ctsio->kern_data_ptr; 7568 num = 0; 7569 for (i = 0; i < 256; i++) { 7570 entry = &ctl_cmd_table[i]; 7571 if (entry->flags & CTL_CMD_FLAG_SA5) { 7572 for (j = 0; j < 32; j++) { 7573 sentry = &((const struct ctl_cmd_entry *) 7574 entry->execute)[j]; 7575 if (!ctl_cmd_applicable( 7576 lun->be_lun->lun_type, sentry)) 7577 continue; 7578 descr = &all->descr[num++]; 7579 descr->opcode = i; 7580 scsi_ulto2b(j, descr->service_action); 7581 descr->flags = RSO_SERVACTV; 7582 scsi_ulto2b(sentry->length, 7583 descr->cdb_length); 7584 } 7585 } else { 7586 if (!ctl_cmd_applicable(lun->be_lun->lun_type, 7587 entry)) 7588 continue; 7589 descr = &all->descr[num++]; 7590 descr->opcode = i; 7591 scsi_ulto2b(0, descr->service_action); 7592 descr->flags = 0; 7593 scsi_ulto2b(entry->length, descr->cdb_length); 7594 } 7595 } 7596 scsi_ulto4b( 7597 num * sizeof(struct scsi_report_supported_opcodes_descr), 7598 all->length); 7599 break; 7600 case RSO_OPTIONS_OC: 7601 one = (struct scsi_report_supported_opcodes_one *) 7602 ctsio->kern_data_ptr; 7603 entry = &ctl_cmd_table[opcode]; 7604 goto fill_one; 7605 case RSO_OPTIONS_OC_SA: 7606 one = (struct scsi_report_supported_opcodes_one *) 7607 ctsio->kern_data_ptr; 7608 entry = &ctl_cmd_table[opcode]; 7609 entry = &((const struct ctl_cmd_entry *) 7610 entry->execute)[service_action]; 7611fill_one: 7612 if (ctl_cmd_applicable(lun->be_lun->lun_type, entry)) { 7613 one->support = 3; 7614 scsi_ulto2b(entry->length, one->cdb_length); 7615 one->cdb_usage[0] = opcode; 7616 memcpy(&one->cdb_usage[1], entry->usage, 7617 entry->length - 1); 7618 } else 7619 one->support = 1; 7620 break; 7621 } 7622 7623 ctl_set_success(ctsio); 7624 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7625 ctsio->be_move_done = ctl_config_move_done; 7626 ctl_datamove((union ctl_io *)ctsio); 7627 return(retval); 7628} 7629 7630int 7631ctl_report_supported_tmf(struct ctl_scsiio *ctsio) 7632{ 7633 struct scsi_report_supported_tmf *cdb; 7634 struct scsi_report_supported_tmf_data *data; 7635 int retval; 7636 int alloc_len, total_len; 7637 7638 CTL_DEBUG_PRINT(("ctl_report_supported_tmf\n")); 7639 7640 cdb = (struct scsi_report_supported_tmf *)ctsio->cdb; 7641 7642 retval = CTL_RETVAL_COMPLETE; 7643 7644 total_len = sizeof(struct scsi_report_supported_tmf_data); 7645 alloc_len = scsi_4btoul(cdb->length); 7646 7647 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7648 7649 ctsio->kern_sg_entries = 0; 7650 7651 if (total_len < alloc_len) { 7652 ctsio->residual = alloc_len - total_len; 7653 ctsio->kern_data_len = total_len; 7654 ctsio->kern_total_len = total_len; 7655 } else { 7656 ctsio->residual = 0; 7657 ctsio->kern_data_len = alloc_len; 7658 ctsio->kern_total_len = alloc_len; 7659 } 7660 ctsio->kern_data_resid = 0; 7661 ctsio->kern_rel_offset = 0; 7662 7663 data = (struct scsi_report_supported_tmf_data *)ctsio->kern_data_ptr; 7664 data->byte1 |= RST_ATS | RST_ATSS | RST_CTSS | RST_LURS | RST_QTS | 7665 RST_TRS; 7666 data->byte2 |= RST_QAES | RST_QTSS | RST_ITNRS; 7667 7668 ctl_set_success(ctsio); 7669 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7670 ctsio->be_move_done = ctl_config_move_done; 7671 ctl_datamove((union ctl_io *)ctsio); 7672 return (retval); 7673} 7674 7675int 7676ctl_report_timestamp(struct ctl_scsiio *ctsio) 7677{ 7678 struct scsi_report_timestamp *cdb; 7679 struct scsi_report_timestamp_data *data; 7680 struct timeval tv; 7681 int64_t timestamp; 7682 int retval; 7683 int alloc_len, total_len; 7684 7685 CTL_DEBUG_PRINT(("ctl_report_timestamp\n")); 7686 7687 cdb = (struct scsi_report_timestamp *)ctsio->cdb; 7688 7689 retval = CTL_RETVAL_COMPLETE; 7690 7691 total_len = sizeof(struct scsi_report_timestamp_data); 7692 alloc_len = scsi_4btoul(cdb->length); 7693 7694 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7695 7696 ctsio->kern_sg_entries = 0; 7697 7698 if (total_len < alloc_len) { 7699 ctsio->residual = alloc_len - total_len; 7700 ctsio->kern_data_len = total_len; 7701 ctsio->kern_total_len = total_len; 7702 } else { 7703 ctsio->residual = 0; 7704 ctsio->kern_data_len = alloc_len; 7705 ctsio->kern_total_len = alloc_len; 7706 } 7707 ctsio->kern_data_resid = 0; 7708 ctsio->kern_rel_offset = 0; 7709 7710 data = (struct scsi_report_timestamp_data *)ctsio->kern_data_ptr; 7711 scsi_ulto2b(sizeof(*data) - 2, data->length); 7712 data->origin = RTS_ORIG_OUTSIDE; 7713 getmicrotime(&tv); 7714 timestamp = (int64_t)tv.tv_sec * 1000 + tv.tv_usec / 1000; 7715 scsi_ulto4b(timestamp >> 16, data->timestamp); 7716 scsi_ulto2b(timestamp & 0xffff, &data->timestamp[4]); 7717 7718 ctl_set_success(ctsio); 7719 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7720 ctsio->be_move_done = ctl_config_move_done; 7721 ctl_datamove((union ctl_io *)ctsio); 7722 return (retval); 7723} 7724 7725int 7726ctl_persistent_reserve_in(struct ctl_scsiio *ctsio) 7727{ 7728 struct scsi_per_res_in *cdb; 7729 int alloc_len, total_len = 0; 7730 /* struct scsi_per_res_in_rsrv in_data; */ 7731 struct ctl_lun *lun; 7732 struct ctl_softc *softc; 7733 uint64_t key; 7734 7735 CTL_DEBUG_PRINT(("ctl_persistent_reserve_in\n")); 7736 7737 cdb = (struct scsi_per_res_in *)ctsio->cdb; 7738 7739 alloc_len = scsi_2btoul(cdb->length); 7740 7741 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7742 softc = lun->ctl_softc; 7743 7744retry: 7745 mtx_lock(&lun->lun_lock); 7746 switch (cdb->action) { 7747 case SPRI_RK: /* read keys */ 7748 total_len = sizeof(struct scsi_per_res_in_keys) + 7749 lun->pr_key_count * 7750 sizeof(struct scsi_per_res_key); 7751 break; 7752 case SPRI_RR: /* read reservation */ 7753 if (lun->flags & CTL_LUN_PR_RESERVED) 7754 total_len = sizeof(struct scsi_per_res_in_rsrv); 7755 else 7756 total_len = sizeof(struct scsi_per_res_in_header); 7757 break; 7758 case SPRI_RC: /* report capabilities */ 7759 total_len = sizeof(struct scsi_per_res_cap); 7760 break; 7761 case SPRI_RS: /* read full status */ 7762 total_len = sizeof(struct scsi_per_res_in_header) + 7763 (sizeof(struct scsi_per_res_in_full_desc) + 256) * 7764 lun->pr_key_count; 7765 break; 7766 default: 7767 panic("Invalid PR type %x", cdb->action); 7768 } 7769 mtx_unlock(&lun->lun_lock); 7770 7771 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7772 7773 if (total_len < alloc_len) { 7774 ctsio->residual = alloc_len - total_len; 7775 ctsio->kern_data_len = total_len; 7776 ctsio->kern_total_len = total_len; 7777 } else { 7778 ctsio->residual = 0; 7779 ctsio->kern_data_len = alloc_len; 7780 ctsio->kern_total_len = alloc_len; 7781 } 7782 7783 ctsio->kern_data_resid = 0; 7784 ctsio->kern_rel_offset = 0; 7785 ctsio->kern_sg_entries = 0; 7786 7787 mtx_lock(&lun->lun_lock); 7788 switch (cdb->action) { 7789 case SPRI_RK: { // read keys 7790 struct scsi_per_res_in_keys *res_keys; 7791 int i, key_count; 7792 7793 res_keys = (struct scsi_per_res_in_keys*)ctsio->kern_data_ptr; 7794 7795 /* 7796 * We had to drop the lock to allocate our buffer, which 7797 * leaves time for someone to come in with another 7798 * persistent reservation. (That is unlikely, though, 7799 * since this should be the only persistent reservation 7800 * command active right now.) 7801 */ 7802 if (total_len != (sizeof(struct scsi_per_res_in_keys) + 7803 (lun->pr_key_count * 7804 sizeof(struct scsi_per_res_key)))){ 7805 mtx_unlock(&lun->lun_lock); 7806 free(ctsio->kern_data_ptr, M_CTL); 7807 printf("%s: reservation length changed, retrying\n", 7808 __func__); 7809 goto retry; 7810 } 7811 7812 scsi_ulto4b(lun->PRGeneration, res_keys->header.generation); 7813 7814 scsi_ulto4b(sizeof(struct scsi_per_res_key) * 7815 lun->pr_key_count, res_keys->header.length); 7816 7817 for (i = 0, key_count = 0; i < CTL_MAX_INITIATORS; i++) { 7818 if ((key = ctl_get_prkey(lun, i)) == 0) 7819 continue; 7820 7821 /* 7822 * We used lun->pr_key_count to calculate the 7823 * size to allocate. If it turns out the number of 7824 * initiators with the registered flag set is 7825 * larger than that (i.e. they haven't been kept in 7826 * sync), we've got a problem. 7827 */ 7828 if (key_count >= lun->pr_key_count) { 7829#ifdef NEEDTOPORT 7830 csevent_log(CSC_CTL | CSC_SHELF_SW | 7831 CTL_PR_ERROR, 7832 csevent_LogType_Fault, 7833 csevent_AlertLevel_Yellow, 7834 csevent_FRU_ShelfController, 7835 csevent_FRU_Firmware, 7836 csevent_FRU_Unknown, 7837 "registered keys %d >= key " 7838 "count %d", key_count, 7839 lun->pr_key_count); 7840#endif 7841 key_count++; 7842 continue; 7843 } 7844 scsi_u64to8b(key, res_keys->keys[key_count].key); 7845 key_count++; 7846 } 7847 break; 7848 } 7849 case SPRI_RR: { // read reservation 7850 struct scsi_per_res_in_rsrv *res; 7851 int tmp_len, header_only; 7852 7853 res = (struct scsi_per_res_in_rsrv *)ctsio->kern_data_ptr; 7854 7855 scsi_ulto4b(lun->PRGeneration, res->header.generation); 7856 7857 if (lun->flags & CTL_LUN_PR_RESERVED) 7858 { 7859 tmp_len = sizeof(struct scsi_per_res_in_rsrv); 7860 scsi_ulto4b(sizeof(struct scsi_per_res_in_rsrv_data), 7861 res->header.length); 7862 header_only = 0; 7863 } else { 7864 tmp_len = sizeof(struct scsi_per_res_in_header); 7865 scsi_ulto4b(0, res->header.length); 7866 header_only = 1; 7867 } 7868 7869 /* 7870 * We had to drop the lock to allocate our buffer, which 7871 * leaves time for someone to come in with another 7872 * persistent reservation. (That is unlikely, though, 7873 * since this should be the only persistent reservation 7874 * command active right now.) 7875 */ 7876 if (tmp_len != total_len) { 7877 mtx_unlock(&lun->lun_lock); 7878 free(ctsio->kern_data_ptr, M_CTL); 7879 printf("%s: reservation status changed, retrying\n", 7880 __func__); 7881 goto retry; 7882 } 7883 7884 /* 7885 * No reservation held, so we're done. 7886 */ 7887 if (header_only != 0) 7888 break; 7889 7890 /* 7891 * If the registration is an All Registrants type, the key 7892 * is 0, since it doesn't really matter. 7893 */ 7894 if (lun->pr_res_idx != CTL_PR_ALL_REGISTRANTS) { 7895 scsi_u64to8b(ctl_get_prkey(lun, lun->pr_res_idx), 7896 res->data.reservation); 7897 } 7898 res->data.scopetype = lun->res_type; 7899 break; 7900 } 7901 case SPRI_RC: //report capabilities 7902 { 7903 struct scsi_per_res_cap *res_cap; 7904 uint16_t type_mask; 7905 7906 res_cap = (struct scsi_per_res_cap *)ctsio->kern_data_ptr; 7907 scsi_ulto2b(sizeof(*res_cap), res_cap->length); 7908 res_cap->flags2 |= SPRI_TMV | SPRI_ALLOW_5; 7909 type_mask = SPRI_TM_WR_EX_AR | 7910 SPRI_TM_EX_AC_RO | 7911 SPRI_TM_WR_EX_RO | 7912 SPRI_TM_EX_AC | 7913 SPRI_TM_WR_EX | 7914 SPRI_TM_EX_AC_AR; 7915 scsi_ulto2b(type_mask, res_cap->type_mask); 7916 break; 7917 } 7918 case SPRI_RS: { // read full status 7919 struct scsi_per_res_in_full *res_status; 7920 struct scsi_per_res_in_full_desc *res_desc; 7921 struct ctl_port *port; 7922 int i, len; 7923 7924 res_status = (struct scsi_per_res_in_full*)ctsio->kern_data_ptr; 7925 7926 /* 7927 * We had to drop the lock to allocate our buffer, which 7928 * leaves time for someone to come in with another 7929 * persistent reservation. (That is unlikely, though, 7930 * since this should be the only persistent reservation 7931 * command active right now.) 7932 */ 7933 if (total_len < (sizeof(struct scsi_per_res_in_header) + 7934 (sizeof(struct scsi_per_res_in_full_desc) + 256) * 7935 lun->pr_key_count)){ 7936 mtx_unlock(&lun->lun_lock); 7937 free(ctsio->kern_data_ptr, M_CTL); 7938 printf("%s: reservation length changed, retrying\n", 7939 __func__); 7940 goto retry; 7941 } 7942 7943 scsi_ulto4b(lun->PRGeneration, res_status->header.generation); 7944 7945 res_desc = &res_status->desc[0]; 7946 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 7947 if ((key = ctl_get_prkey(lun, i)) == 0) 7948 continue; 7949 7950 scsi_u64to8b(key, res_desc->res_key.key); 7951 if ((lun->flags & CTL_LUN_PR_RESERVED) && 7952 (lun->pr_res_idx == i || 7953 lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS)) { 7954 res_desc->flags = SPRI_FULL_R_HOLDER; 7955 res_desc->scopetype = lun->res_type; 7956 } 7957 scsi_ulto2b(i / CTL_MAX_INIT_PER_PORT, 7958 res_desc->rel_trgt_port_id); 7959 len = 0; 7960 port = softc->ctl_ports[i / CTL_MAX_INIT_PER_PORT]; 7961 if (port != NULL) 7962 len = ctl_create_iid(port, 7963 i % CTL_MAX_INIT_PER_PORT, 7964 res_desc->transport_id); 7965 scsi_ulto4b(len, res_desc->additional_length); 7966 res_desc = (struct scsi_per_res_in_full_desc *) 7967 &res_desc->transport_id[len]; 7968 } 7969 scsi_ulto4b((uint8_t *)res_desc - (uint8_t *)&res_status->desc[0], 7970 res_status->header.length); 7971 break; 7972 } 7973 default: 7974 /* 7975 * This is a bug, because we just checked for this above, 7976 * and should have returned an error. 7977 */ 7978 panic("Invalid PR type %x", cdb->action); 7979 break; /* NOTREACHED */ 7980 } 7981 mtx_unlock(&lun->lun_lock); 7982 7983 ctl_set_success(ctsio); 7984 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7985 ctsio->be_move_done = ctl_config_move_done; 7986 ctl_datamove((union ctl_io *)ctsio); 7987 return (CTL_RETVAL_COMPLETE); 7988} 7989 7990/* 7991 * Returns 0 if ctl_persistent_reserve_out() should continue, non-zero if 7992 * it should return. 7993 */ 7994static int 7995ctl_pro_preempt(struct ctl_softc *softc, struct ctl_lun *lun, uint64_t res_key, 7996 uint64_t sa_res_key, uint8_t type, uint32_t residx, 7997 struct ctl_scsiio *ctsio, struct scsi_per_res_out *cdb, 7998 struct scsi_per_res_out_parms* param) 7999{ 8000 union ctl_ha_msg persis_io; 8001 int i; 8002 8003 mtx_lock(&lun->lun_lock); 8004 if (sa_res_key == 0) { 8005 if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS) { 8006 /* validate scope and type */ 8007 if ((cdb->scope_type & SPR_SCOPE_MASK) != 8008 SPR_LU_SCOPE) { 8009 mtx_unlock(&lun->lun_lock); 8010 ctl_set_invalid_field(/*ctsio*/ ctsio, 8011 /*sks_valid*/ 1, 8012 /*command*/ 1, 8013 /*field*/ 2, 8014 /*bit_valid*/ 1, 8015 /*bit*/ 4); 8016 ctl_done((union ctl_io *)ctsio); 8017 return (1); 8018 } 8019 8020 if (type>8 || type==2 || type==4 || type==0) { 8021 mtx_unlock(&lun->lun_lock); 8022 ctl_set_invalid_field(/*ctsio*/ ctsio, 8023 /*sks_valid*/ 1, 8024 /*command*/ 1, 8025 /*field*/ 2, 8026 /*bit_valid*/ 1, 8027 /*bit*/ 0); 8028 ctl_done((union ctl_io *)ctsio); 8029 return (1); 8030 } 8031 8032 /* 8033 * Unregister everybody else and build UA for 8034 * them 8035 */ 8036 for(i = 0; i < CTL_MAX_INITIATORS; i++) { 8037 if (i == residx || ctl_get_prkey(lun, i) == 0) 8038 continue; 8039 8040 ctl_clr_prkey(lun, i); 8041 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 8042 } 8043 lun->pr_key_count = 1; 8044 lun->res_type = type; 8045 if (lun->res_type != SPR_TYPE_WR_EX_AR 8046 && lun->res_type != SPR_TYPE_EX_AC_AR) 8047 lun->pr_res_idx = residx; 8048 lun->PRGeneration++; 8049 mtx_unlock(&lun->lun_lock); 8050 8051 /* send msg to other side */ 8052 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8053 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8054 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 8055 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8056 persis_io.pr.pr_info.res_type = type; 8057 memcpy(persis_io.pr.pr_info.sa_res_key, 8058 param->serv_act_res_key, 8059 sizeof(param->serv_act_res_key)); 8060 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8061 sizeof(persis_io.pr), M_WAITOK); 8062 } else { 8063 /* not all registrants */ 8064 mtx_unlock(&lun->lun_lock); 8065 free(ctsio->kern_data_ptr, M_CTL); 8066 ctl_set_invalid_field(ctsio, 8067 /*sks_valid*/ 1, 8068 /*command*/ 0, 8069 /*field*/ 8, 8070 /*bit_valid*/ 0, 8071 /*bit*/ 0); 8072 ctl_done((union ctl_io *)ctsio); 8073 return (1); 8074 } 8075 } else if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS 8076 || !(lun->flags & CTL_LUN_PR_RESERVED)) { 8077 int found = 0; 8078 8079 if (res_key == sa_res_key) { 8080 /* special case */ 8081 /* 8082 * The spec implies this is not good but doesn't 8083 * say what to do. There are two choices either 8084 * generate a res conflict or check condition 8085 * with illegal field in parameter data. Since 8086 * that is what is done when the sa_res_key is 8087 * zero I'll take that approach since this has 8088 * to do with the sa_res_key. 8089 */ 8090 mtx_unlock(&lun->lun_lock); 8091 free(ctsio->kern_data_ptr, M_CTL); 8092 ctl_set_invalid_field(ctsio, 8093 /*sks_valid*/ 1, 8094 /*command*/ 0, 8095 /*field*/ 8, 8096 /*bit_valid*/ 0, 8097 /*bit*/ 0); 8098 ctl_done((union ctl_io *)ctsio); 8099 return (1); 8100 } 8101 8102 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 8103 if (ctl_get_prkey(lun, i) != sa_res_key) 8104 continue; 8105 8106 found = 1; 8107 ctl_clr_prkey(lun, i); 8108 lun->pr_key_count--; 8109 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 8110 } 8111 if (!found) { 8112 mtx_unlock(&lun->lun_lock); 8113 free(ctsio->kern_data_ptr, M_CTL); 8114 ctl_set_reservation_conflict(ctsio); 8115 ctl_done((union ctl_io *)ctsio); 8116 return (CTL_RETVAL_COMPLETE); 8117 } 8118 lun->PRGeneration++; 8119 mtx_unlock(&lun->lun_lock); 8120 8121 /* send msg to other side */ 8122 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8123 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8124 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 8125 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8126 persis_io.pr.pr_info.res_type = type; 8127 memcpy(persis_io.pr.pr_info.sa_res_key, 8128 param->serv_act_res_key, 8129 sizeof(param->serv_act_res_key)); 8130 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8131 sizeof(persis_io.pr), M_WAITOK); 8132 } else { 8133 /* Reserved but not all registrants */ 8134 /* sa_res_key is res holder */ 8135 if (sa_res_key == ctl_get_prkey(lun, lun->pr_res_idx)) { 8136 /* validate scope and type */ 8137 if ((cdb->scope_type & SPR_SCOPE_MASK) != 8138 SPR_LU_SCOPE) { 8139 mtx_unlock(&lun->lun_lock); 8140 ctl_set_invalid_field(/*ctsio*/ ctsio, 8141 /*sks_valid*/ 1, 8142 /*command*/ 1, 8143 /*field*/ 2, 8144 /*bit_valid*/ 1, 8145 /*bit*/ 4); 8146 ctl_done((union ctl_io *)ctsio); 8147 return (1); 8148 } 8149 8150 if (type>8 || type==2 || type==4 || type==0) { 8151 mtx_unlock(&lun->lun_lock); 8152 ctl_set_invalid_field(/*ctsio*/ ctsio, 8153 /*sks_valid*/ 1, 8154 /*command*/ 1, 8155 /*field*/ 2, 8156 /*bit_valid*/ 1, 8157 /*bit*/ 0); 8158 ctl_done((union ctl_io *)ctsio); 8159 return (1); 8160 } 8161 8162 /* 8163 * Do the following: 8164 * if sa_res_key != res_key remove all 8165 * registrants w/sa_res_key and generate UA 8166 * for these registrants(Registrations 8167 * Preempted) if it wasn't an exclusive 8168 * reservation generate UA(Reservations 8169 * Preempted) for all other registered nexuses 8170 * if the type has changed. Establish the new 8171 * reservation and holder. If res_key and 8172 * sa_res_key are the same do the above 8173 * except don't unregister the res holder. 8174 */ 8175 8176 for(i = 0; i < CTL_MAX_INITIATORS; i++) { 8177 if (i == residx || ctl_get_prkey(lun, i) == 0) 8178 continue; 8179 8180 if (sa_res_key == ctl_get_prkey(lun, i)) { 8181 ctl_clr_prkey(lun, i); 8182 lun->pr_key_count--; 8183 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 8184 } else if (type != lun->res_type 8185 && (lun->res_type == SPR_TYPE_WR_EX_RO 8186 || lun->res_type ==SPR_TYPE_EX_AC_RO)){ 8187 ctl_est_ua(lun, i, CTL_UA_RES_RELEASE); 8188 } 8189 } 8190 lun->res_type = type; 8191 if (lun->res_type != SPR_TYPE_WR_EX_AR 8192 && lun->res_type != SPR_TYPE_EX_AC_AR) 8193 lun->pr_res_idx = residx; 8194 else 8195 lun->pr_res_idx = CTL_PR_ALL_REGISTRANTS; 8196 lun->PRGeneration++; 8197 mtx_unlock(&lun->lun_lock); 8198 8199 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8200 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8201 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 8202 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8203 persis_io.pr.pr_info.res_type = type; 8204 memcpy(persis_io.pr.pr_info.sa_res_key, 8205 param->serv_act_res_key, 8206 sizeof(param->serv_act_res_key)); 8207 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8208 sizeof(persis_io.pr), M_WAITOK); 8209 } else { 8210 /* 8211 * sa_res_key is not the res holder just 8212 * remove registrants 8213 */ 8214 int found=0; 8215 8216 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 8217 if (sa_res_key != ctl_get_prkey(lun, i)) 8218 continue; 8219 8220 found = 1; 8221 ctl_clr_prkey(lun, i); 8222 lun->pr_key_count--; 8223 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 8224 } 8225 8226 if (!found) { 8227 mtx_unlock(&lun->lun_lock); 8228 free(ctsio->kern_data_ptr, M_CTL); 8229 ctl_set_reservation_conflict(ctsio); 8230 ctl_done((union ctl_io *)ctsio); 8231 return (1); 8232 } 8233 lun->PRGeneration++; 8234 mtx_unlock(&lun->lun_lock); 8235 8236 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8237 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8238 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 8239 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8240 persis_io.pr.pr_info.res_type = type; 8241 memcpy(persis_io.pr.pr_info.sa_res_key, 8242 param->serv_act_res_key, 8243 sizeof(param->serv_act_res_key)); 8244 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8245 sizeof(persis_io.pr), M_WAITOK); 8246 } 8247 } 8248 return (0); 8249} 8250 8251static void 8252ctl_pro_preempt_other(struct ctl_lun *lun, union ctl_ha_msg *msg) 8253{ 8254 uint64_t sa_res_key; 8255 int i; 8256 8257 sa_res_key = scsi_8btou64(msg->pr.pr_info.sa_res_key); 8258 8259 if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS 8260 || lun->pr_res_idx == CTL_PR_NO_RESERVATION 8261 || sa_res_key != ctl_get_prkey(lun, lun->pr_res_idx)) { 8262 if (sa_res_key == 0) { 8263 /* 8264 * Unregister everybody else and build UA for 8265 * them 8266 */ 8267 for(i = 0; i < CTL_MAX_INITIATORS; i++) { 8268 if (i == msg->pr.pr_info.residx || 8269 ctl_get_prkey(lun, i) == 0) 8270 continue; 8271 8272 ctl_clr_prkey(lun, i); 8273 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 8274 } 8275 8276 lun->pr_key_count = 1; 8277 lun->res_type = msg->pr.pr_info.res_type; 8278 if (lun->res_type != SPR_TYPE_WR_EX_AR 8279 && lun->res_type != SPR_TYPE_EX_AC_AR) 8280 lun->pr_res_idx = msg->pr.pr_info.residx; 8281 } else { 8282 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 8283 if (sa_res_key == ctl_get_prkey(lun, i)) 8284 continue; 8285 8286 ctl_clr_prkey(lun, i); 8287 lun->pr_key_count--; 8288 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 8289 } 8290 } 8291 } else { 8292 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 8293 if (i == msg->pr.pr_info.residx || 8294 ctl_get_prkey(lun, i) == 0) 8295 continue; 8296 8297 if (sa_res_key == ctl_get_prkey(lun, i)) { 8298 ctl_clr_prkey(lun, i); 8299 lun->pr_key_count--; 8300 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 8301 } else if (msg->pr.pr_info.res_type != lun->res_type 8302 && (lun->res_type == SPR_TYPE_WR_EX_RO 8303 || lun->res_type == SPR_TYPE_EX_AC_RO)) { 8304 ctl_est_ua(lun, i, CTL_UA_RES_RELEASE); 8305 } 8306 } 8307 lun->res_type = msg->pr.pr_info.res_type; 8308 if (lun->res_type != SPR_TYPE_WR_EX_AR 8309 && lun->res_type != SPR_TYPE_EX_AC_AR) 8310 lun->pr_res_idx = msg->pr.pr_info.residx; 8311 else 8312 lun->pr_res_idx = CTL_PR_ALL_REGISTRANTS; 8313 } 8314 lun->PRGeneration++; 8315 8316} 8317 8318 8319int 8320ctl_persistent_reserve_out(struct ctl_scsiio *ctsio) 8321{ 8322 int retval; 8323 u_int32_t param_len; 8324 struct scsi_per_res_out *cdb; 8325 struct ctl_lun *lun; 8326 struct scsi_per_res_out_parms* param; 8327 struct ctl_softc *softc; 8328 uint32_t residx; 8329 uint64_t res_key, sa_res_key, key; 8330 uint8_t type; 8331 union ctl_ha_msg persis_io; 8332 int i; 8333 8334 CTL_DEBUG_PRINT(("ctl_persistent_reserve_out\n")); 8335 8336 retval = CTL_RETVAL_COMPLETE; 8337 8338 cdb = (struct scsi_per_res_out *)ctsio->cdb; 8339 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 8340 softc = lun->ctl_softc; 8341 8342 /* 8343 * We only support whole-LUN scope. The scope & type are ignored for 8344 * register, register and ignore existing key and clear. 8345 * We sometimes ignore scope and type on preempts too!! 8346 * Verify reservation type here as well. 8347 */ 8348 type = cdb->scope_type & SPR_TYPE_MASK; 8349 if ((cdb->action == SPRO_RESERVE) 8350 || (cdb->action == SPRO_RELEASE)) { 8351 if ((cdb->scope_type & SPR_SCOPE_MASK) != SPR_LU_SCOPE) { 8352 ctl_set_invalid_field(/*ctsio*/ ctsio, 8353 /*sks_valid*/ 1, 8354 /*command*/ 1, 8355 /*field*/ 2, 8356 /*bit_valid*/ 1, 8357 /*bit*/ 4); 8358 ctl_done((union ctl_io *)ctsio); 8359 return (CTL_RETVAL_COMPLETE); 8360 } 8361 8362 if (type>8 || type==2 || type==4 || type==0) { 8363 ctl_set_invalid_field(/*ctsio*/ ctsio, 8364 /*sks_valid*/ 1, 8365 /*command*/ 1, 8366 /*field*/ 2, 8367 /*bit_valid*/ 1, 8368 /*bit*/ 0); 8369 ctl_done((union ctl_io *)ctsio); 8370 return (CTL_RETVAL_COMPLETE); 8371 } 8372 } 8373 8374 param_len = scsi_4btoul(cdb->length); 8375 8376 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 8377 ctsio->kern_data_ptr = malloc(param_len, M_CTL, M_WAITOK); 8378 ctsio->kern_data_len = param_len; 8379 ctsio->kern_total_len = param_len; 8380 ctsio->kern_data_resid = 0; 8381 ctsio->kern_rel_offset = 0; 8382 ctsio->kern_sg_entries = 0; 8383 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 8384 ctsio->be_move_done = ctl_config_move_done; 8385 ctl_datamove((union ctl_io *)ctsio); 8386 8387 return (CTL_RETVAL_COMPLETE); 8388 } 8389 8390 param = (struct scsi_per_res_out_parms *)ctsio->kern_data_ptr; 8391 8392 residx = ctl_get_initindex(&ctsio->io_hdr.nexus); 8393 res_key = scsi_8btou64(param->res_key.key); 8394 sa_res_key = scsi_8btou64(param->serv_act_res_key); 8395 8396 /* 8397 * Validate the reservation key here except for SPRO_REG_IGNO 8398 * This must be done for all other service actions 8399 */ 8400 if ((cdb->action & SPRO_ACTION_MASK) != SPRO_REG_IGNO) { 8401 mtx_lock(&lun->lun_lock); 8402 if ((key = ctl_get_prkey(lun, residx)) != 0) { 8403 if (res_key != key) { 8404 /* 8405 * The current key passed in doesn't match 8406 * the one the initiator previously 8407 * registered. 8408 */ 8409 mtx_unlock(&lun->lun_lock); 8410 free(ctsio->kern_data_ptr, M_CTL); 8411 ctl_set_reservation_conflict(ctsio); 8412 ctl_done((union ctl_io *)ctsio); 8413 return (CTL_RETVAL_COMPLETE); 8414 } 8415 } else if ((cdb->action & SPRO_ACTION_MASK) != SPRO_REGISTER) { 8416 /* 8417 * We are not registered 8418 */ 8419 mtx_unlock(&lun->lun_lock); 8420 free(ctsio->kern_data_ptr, M_CTL); 8421 ctl_set_reservation_conflict(ctsio); 8422 ctl_done((union ctl_io *)ctsio); 8423 return (CTL_RETVAL_COMPLETE); 8424 } else if (res_key != 0) { 8425 /* 8426 * We are not registered and trying to register but 8427 * the register key isn't zero. 8428 */ 8429 mtx_unlock(&lun->lun_lock); 8430 free(ctsio->kern_data_ptr, M_CTL); 8431 ctl_set_reservation_conflict(ctsio); 8432 ctl_done((union ctl_io *)ctsio); 8433 return (CTL_RETVAL_COMPLETE); 8434 } 8435 mtx_unlock(&lun->lun_lock); 8436 } 8437 8438 switch (cdb->action & SPRO_ACTION_MASK) { 8439 case SPRO_REGISTER: 8440 case SPRO_REG_IGNO: { 8441 8442#if 0 8443 printf("Registration received\n"); 8444#endif 8445 8446 /* 8447 * We don't support any of these options, as we report in 8448 * the read capabilities request (see 8449 * ctl_persistent_reserve_in(), above). 8450 */ 8451 if ((param->flags & SPR_SPEC_I_PT) 8452 || (param->flags & SPR_ALL_TG_PT) 8453 || (param->flags & SPR_APTPL)) { 8454 int bit_ptr; 8455 8456 if (param->flags & SPR_APTPL) 8457 bit_ptr = 0; 8458 else if (param->flags & SPR_ALL_TG_PT) 8459 bit_ptr = 2; 8460 else /* SPR_SPEC_I_PT */ 8461 bit_ptr = 3; 8462 8463 free(ctsio->kern_data_ptr, M_CTL); 8464 ctl_set_invalid_field(ctsio, 8465 /*sks_valid*/ 1, 8466 /*command*/ 0, 8467 /*field*/ 20, 8468 /*bit_valid*/ 1, 8469 /*bit*/ bit_ptr); 8470 ctl_done((union ctl_io *)ctsio); 8471 return (CTL_RETVAL_COMPLETE); 8472 } 8473 8474 mtx_lock(&lun->lun_lock); 8475 8476 /* 8477 * The initiator wants to clear the 8478 * key/unregister. 8479 */ 8480 if (sa_res_key == 0) { 8481 if ((res_key == 0 8482 && (cdb->action & SPRO_ACTION_MASK) == SPRO_REGISTER) 8483 || ((cdb->action & SPRO_ACTION_MASK) == SPRO_REG_IGNO 8484 && ctl_get_prkey(lun, residx) == 0)) { 8485 mtx_unlock(&lun->lun_lock); 8486 goto done; 8487 } 8488 8489 ctl_clr_prkey(lun, residx); 8490 lun->pr_key_count--; 8491 8492 if (residx == lun->pr_res_idx) { 8493 lun->flags &= ~CTL_LUN_PR_RESERVED; 8494 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8495 8496 if ((lun->res_type == SPR_TYPE_WR_EX_RO 8497 || lun->res_type == SPR_TYPE_EX_AC_RO) 8498 && lun->pr_key_count) { 8499 /* 8500 * If the reservation is a registrants 8501 * only type we need to generate a UA 8502 * for other registered inits. The 8503 * sense code should be RESERVATIONS 8504 * RELEASED 8505 */ 8506 8507 for (i = softc->init_min; i < softc->init_max; i++){ 8508 if (ctl_get_prkey(lun, i) == 0) 8509 continue; 8510 ctl_est_ua(lun, i, 8511 CTL_UA_RES_RELEASE); 8512 } 8513 } 8514 lun->res_type = 0; 8515 } else if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS) { 8516 if (lun->pr_key_count==0) { 8517 lun->flags &= ~CTL_LUN_PR_RESERVED; 8518 lun->res_type = 0; 8519 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8520 } 8521 } 8522 lun->PRGeneration++; 8523 mtx_unlock(&lun->lun_lock); 8524 8525 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8526 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8527 persis_io.pr.pr_info.action = CTL_PR_UNREG_KEY; 8528 persis_io.pr.pr_info.residx = residx; 8529 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8530 sizeof(persis_io.pr), M_WAITOK); 8531 } else /* sa_res_key != 0 */ { 8532 8533 /* 8534 * If we aren't registered currently then increment 8535 * the key count and set the registered flag. 8536 */ 8537 ctl_alloc_prkey(lun, residx); 8538 if (ctl_get_prkey(lun, residx) == 0) 8539 lun->pr_key_count++; 8540 ctl_set_prkey(lun, residx, sa_res_key); 8541 lun->PRGeneration++; 8542 mtx_unlock(&lun->lun_lock); 8543 8544 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8545 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8546 persis_io.pr.pr_info.action = CTL_PR_REG_KEY; 8547 persis_io.pr.pr_info.residx = residx; 8548 memcpy(persis_io.pr.pr_info.sa_res_key, 8549 param->serv_act_res_key, 8550 sizeof(param->serv_act_res_key)); 8551 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8552 sizeof(persis_io.pr), M_WAITOK); 8553 } 8554 8555 break; 8556 } 8557 case SPRO_RESERVE: 8558#if 0 8559 printf("Reserve executed type %d\n", type); 8560#endif 8561 mtx_lock(&lun->lun_lock); 8562 if (lun->flags & CTL_LUN_PR_RESERVED) { 8563 /* 8564 * if this isn't the reservation holder and it's 8565 * not a "all registrants" type or if the type is 8566 * different then we have a conflict 8567 */ 8568 if ((lun->pr_res_idx != residx 8569 && lun->pr_res_idx != CTL_PR_ALL_REGISTRANTS) 8570 || lun->res_type != type) { 8571 mtx_unlock(&lun->lun_lock); 8572 free(ctsio->kern_data_ptr, M_CTL); 8573 ctl_set_reservation_conflict(ctsio); 8574 ctl_done((union ctl_io *)ctsio); 8575 return (CTL_RETVAL_COMPLETE); 8576 } 8577 mtx_unlock(&lun->lun_lock); 8578 } else /* create a reservation */ { 8579 /* 8580 * If it's not an "all registrants" type record 8581 * reservation holder 8582 */ 8583 if (type != SPR_TYPE_WR_EX_AR 8584 && type != SPR_TYPE_EX_AC_AR) 8585 lun->pr_res_idx = residx; /* Res holder */ 8586 else 8587 lun->pr_res_idx = CTL_PR_ALL_REGISTRANTS; 8588 8589 lun->flags |= CTL_LUN_PR_RESERVED; 8590 lun->res_type = type; 8591 8592 mtx_unlock(&lun->lun_lock); 8593 8594 /* send msg to other side */ 8595 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8596 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8597 persis_io.pr.pr_info.action = CTL_PR_RESERVE; 8598 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8599 persis_io.pr.pr_info.res_type = type; 8600 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8601 sizeof(persis_io.pr), M_WAITOK); 8602 } 8603 break; 8604 8605 case SPRO_RELEASE: 8606 mtx_lock(&lun->lun_lock); 8607 if ((lun->flags & CTL_LUN_PR_RESERVED) == 0) { 8608 /* No reservation exists return good status */ 8609 mtx_unlock(&lun->lun_lock); 8610 goto done; 8611 } 8612 /* 8613 * Is this nexus a reservation holder? 8614 */ 8615 if (lun->pr_res_idx != residx 8616 && lun->pr_res_idx != CTL_PR_ALL_REGISTRANTS) { 8617 /* 8618 * not a res holder return good status but 8619 * do nothing 8620 */ 8621 mtx_unlock(&lun->lun_lock); 8622 goto done; 8623 } 8624 8625 if (lun->res_type != type) { 8626 mtx_unlock(&lun->lun_lock); 8627 free(ctsio->kern_data_ptr, M_CTL); 8628 ctl_set_illegal_pr_release(ctsio); 8629 ctl_done((union ctl_io *)ctsio); 8630 return (CTL_RETVAL_COMPLETE); 8631 } 8632 8633 /* okay to release */ 8634 lun->flags &= ~CTL_LUN_PR_RESERVED; 8635 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8636 lun->res_type = 0; 8637 8638 /* 8639 * if this isn't an exclusive access 8640 * res generate UA for all other 8641 * registrants. 8642 */ 8643 if (type != SPR_TYPE_EX_AC 8644 && type != SPR_TYPE_WR_EX) { 8645 for (i = softc->init_min; i < softc->init_max; i++) { 8646 if (i == residx || ctl_get_prkey(lun, i) == 0) 8647 continue; 8648 ctl_est_ua(lun, i, CTL_UA_RES_RELEASE); 8649 } 8650 } 8651 mtx_unlock(&lun->lun_lock); 8652 8653 /* Send msg to other side */ 8654 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8655 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8656 persis_io.pr.pr_info.action = CTL_PR_RELEASE; 8657 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8658 sizeof(persis_io.pr), M_WAITOK); 8659 break; 8660 8661 case SPRO_CLEAR: 8662 /* send msg to other side */ 8663 8664 mtx_lock(&lun->lun_lock); 8665 lun->flags &= ~CTL_LUN_PR_RESERVED; 8666 lun->res_type = 0; 8667 lun->pr_key_count = 0; 8668 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8669 8670 ctl_clr_prkey(lun, residx); 8671 for (i = 0; i < CTL_MAX_INITIATORS; i++) 8672 if (ctl_get_prkey(lun, i) != 0) { 8673 ctl_clr_prkey(lun, i); 8674 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 8675 } 8676 lun->PRGeneration++; 8677 mtx_unlock(&lun->lun_lock); 8678 8679 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8680 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8681 persis_io.pr.pr_info.action = CTL_PR_CLEAR; 8682 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8683 sizeof(persis_io.pr), M_WAITOK); 8684 break; 8685 8686 case SPRO_PREEMPT: 8687 case SPRO_PRE_ABO: { 8688 int nretval; 8689 8690 nretval = ctl_pro_preempt(softc, lun, res_key, sa_res_key, type, 8691 residx, ctsio, cdb, param); 8692 if (nretval != 0) 8693 return (CTL_RETVAL_COMPLETE); 8694 break; 8695 } 8696 default: 8697 panic("Invalid PR type %x", cdb->action); 8698 } 8699 8700done: 8701 free(ctsio->kern_data_ptr, M_CTL); 8702 ctl_set_success(ctsio); 8703 ctl_done((union ctl_io *)ctsio); 8704 8705 return (retval); 8706} 8707 8708/* 8709 * This routine is for handling a message from the other SC pertaining to 8710 * persistent reserve out. All the error checking will have been done 8711 * so only perorming the action need be done here to keep the two 8712 * in sync. 8713 */ 8714static void 8715ctl_hndl_per_res_out_on_other_sc(union ctl_ha_msg *msg) 8716{ 8717 struct ctl_softc *softc = control_softc; 8718 struct ctl_lun *lun; 8719 int i; 8720 uint32_t residx, targ_lun; 8721 8722 targ_lun = msg->hdr.nexus.targ_mapped_lun; 8723 mtx_lock(&softc->ctl_lock); 8724 if ((targ_lun >= CTL_MAX_LUNS) || 8725 ((lun = softc->ctl_luns[targ_lun]) == NULL)) { 8726 mtx_unlock(&softc->ctl_lock); 8727 return; 8728 } 8729 mtx_lock(&lun->lun_lock); 8730 mtx_unlock(&softc->ctl_lock); 8731 if (lun->flags & CTL_LUN_DISABLED) { 8732 mtx_unlock(&lun->lun_lock); 8733 return; 8734 } 8735 residx = ctl_get_initindex(&msg->hdr.nexus); 8736 switch(msg->pr.pr_info.action) { 8737 case CTL_PR_REG_KEY: 8738 ctl_alloc_prkey(lun, msg->pr.pr_info.residx); 8739 if (ctl_get_prkey(lun, msg->pr.pr_info.residx) == 0) 8740 lun->pr_key_count++; 8741 ctl_set_prkey(lun, msg->pr.pr_info.residx, 8742 scsi_8btou64(msg->pr.pr_info.sa_res_key)); 8743 lun->PRGeneration++; 8744 break; 8745 8746 case CTL_PR_UNREG_KEY: 8747 ctl_clr_prkey(lun, msg->pr.pr_info.residx); 8748 lun->pr_key_count--; 8749 8750 /* XXX Need to see if the reservation has been released */ 8751 /* if so do we need to generate UA? */ 8752 if (msg->pr.pr_info.residx == lun->pr_res_idx) { 8753 lun->flags &= ~CTL_LUN_PR_RESERVED; 8754 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8755 8756 if ((lun->res_type == SPR_TYPE_WR_EX_RO 8757 || lun->res_type == SPR_TYPE_EX_AC_RO) 8758 && lun->pr_key_count) { 8759 /* 8760 * If the reservation is a registrants 8761 * only type we need to generate a UA 8762 * for other registered inits. The 8763 * sense code should be RESERVATIONS 8764 * RELEASED 8765 */ 8766 8767 for (i = softc->init_min; i < softc->init_max; i++) { 8768 if (ctl_get_prkey(lun, i) == 0) 8769 continue; 8770 8771 ctl_est_ua(lun, i, CTL_UA_RES_RELEASE); 8772 } 8773 } 8774 lun->res_type = 0; 8775 } else if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS) { 8776 if (lun->pr_key_count==0) { 8777 lun->flags &= ~CTL_LUN_PR_RESERVED; 8778 lun->res_type = 0; 8779 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8780 } 8781 } 8782 lun->PRGeneration++; 8783 break; 8784 8785 case CTL_PR_RESERVE: 8786 lun->flags |= CTL_LUN_PR_RESERVED; 8787 lun->res_type = msg->pr.pr_info.res_type; 8788 lun->pr_res_idx = msg->pr.pr_info.residx; 8789 8790 break; 8791 8792 case CTL_PR_RELEASE: 8793 /* 8794 * if this isn't an exclusive access res generate UA for all 8795 * other registrants. 8796 */ 8797 if (lun->res_type != SPR_TYPE_EX_AC 8798 && lun->res_type != SPR_TYPE_WR_EX) { 8799 for (i = softc->init_min; i < softc->init_max; i++) 8800 if (i == residx || ctl_get_prkey(lun, i) == 0) 8801 continue; 8802 ctl_est_ua(lun, i, CTL_UA_RES_RELEASE); 8803 } 8804 8805 lun->flags &= ~CTL_LUN_PR_RESERVED; 8806 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8807 lun->res_type = 0; 8808 break; 8809 8810 case CTL_PR_PREEMPT: 8811 ctl_pro_preempt_other(lun, msg); 8812 break; 8813 case CTL_PR_CLEAR: 8814 lun->flags &= ~CTL_LUN_PR_RESERVED; 8815 lun->res_type = 0; 8816 lun->pr_key_count = 0; 8817 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8818 8819 for (i=0; i < CTL_MAX_INITIATORS; i++) { 8820 if (ctl_get_prkey(lun, i) == 0) 8821 continue; 8822 ctl_clr_prkey(lun, i); 8823 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 8824 } 8825 lun->PRGeneration++; 8826 break; 8827 } 8828 8829 mtx_unlock(&lun->lun_lock); 8830} 8831 8832int 8833ctl_read_write(struct ctl_scsiio *ctsio) 8834{ 8835 struct ctl_lun *lun; 8836 struct ctl_lba_len_flags *lbalen; 8837 uint64_t lba; 8838 uint32_t num_blocks; 8839 int flags, retval; 8840 int isread; 8841 8842 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 8843 8844 CTL_DEBUG_PRINT(("ctl_read_write: command: %#x\n", ctsio->cdb[0])); 8845 8846 flags = 0; 8847 retval = CTL_RETVAL_COMPLETE; 8848 8849 isread = ctsio->cdb[0] == READ_6 || ctsio->cdb[0] == READ_10 8850 || ctsio->cdb[0] == READ_12 || ctsio->cdb[0] == READ_16; 8851 switch (ctsio->cdb[0]) { 8852 case READ_6: 8853 case WRITE_6: { 8854 struct scsi_rw_6 *cdb; 8855 8856 cdb = (struct scsi_rw_6 *)ctsio->cdb; 8857 8858 lba = scsi_3btoul(cdb->addr); 8859 /* only 5 bits are valid in the most significant address byte */ 8860 lba &= 0x1fffff; 8861 num_blocks = cdb->length; 8862 /* 8863 * This is correct according to SBC-2. 8864 */ 8865 if (num_blocks == 0) 8866 num_blocks = 256; 8867 break; 8868 } 8869 case READ_10: 8870 case WRITE_10: { 8871 struct scsi_rw_10 *cdb; 8872 8873 cdb = (struct scsi_rw_10 *)ctsio->cdb; 8874 if (cdb->byte2 & SRW10_FUA) 8875 flags |= CTL_LLF_FUA; 8876 if (cdb->byte2 & SRW10_DPO) 8877 flags |= CTL_LLF_DPO; 8878 lba = scsi_4btoul(cdb->addr); 8879 num_blocks = scsi_2btoul(cdb->length); 8880 break; 8881 } 8882 case WRITE_VERIFY_10: { 8883 struct scsi_write_verify_10 *cdb; 8884 8885 cdb = (struct scsi_write_verify_10 *)ctsio->cdb; 8886 flags |= CTL_LLF_FUA; 8887 if (cdb->byte2 & SWV_DPO) 8888 flags |= CTL_LLF_DPO; 8889 lba = scsi_4btoul(cdb->addr); 8890 num_blocks = scsi_2btoul(cdb->length); 8891 break; 8892 } 8893 case READ_12: 8894 case WRITE_12: { 8895 struct scsi_rw_12 *cdb; 8896 8897 cdb = (struct scsi_rw_12 *)ctsio->cdb; 8898 if (cdb->byte2 & SRW12_FUA) 8899 flags |= CTL_LLF_FUA; 8900 if (cdb->byte2 & SRW12_DPO) 8901 flags |= CTL_LLF_DPO; 8902 lba = scsi_4btoul(cdb->addr); 8903 num_blocks = scsi_4btoul(cdb->length); 8904 break; 8905 } 8906 case WRITE_VERIFY_12: { 8907 struct scsi_write_verify_12 *cdb; 8908 8909 cdb = (struct scsi_write_verify_12 *)ctsio->cdb; 8910 flags |= CTL_LLF_FUA; 8911 if (cdb->byte2 & SWV_DPO) 8912 flags |= CTL_LLF_DPO; 8913 lba = scsi_4btoul(cdb->addr); 8914 num_blocks = scsi_4btoul(cdb->length); 8915 break; 8916 } 8917 case READ_16: 8918 case WRITE_16: { 8919 struct scsi_rw_16 *cdb; 8920 8921 cdb = (struct scsi_rw_16 *)ctsio->cdb; 8922 if (cdb->byte2 & SRW12_FUA) 8923 flags |= CTL_LLF_FUA; 8924 if (cdb->byte2 & SRW12_DPO) 8925 flags |= CTL_LLF_DPO; 8926 lba = scsi_8btou64(cdb->addr); 8927 num_blocks = scsi_4btoul(cdb->length); 8928 break; 8929 } 8930 case WRITE_ATOMIC_16: { 8931 struct scsi_write_atomic_16 *cdb; 8932 8933 if (lun->be_lun->atomicblock == 0) { 8934 ctl_set_invalid_opcode(ctsio); 8935 ctl_done((union ctl_io *)ctsio); 8936 return (CTL_RETVAL_COMPLETE); 8937 } 8938 8939 cdb = (struct scsi_write_atomic_16 *)ctsio->cdb; 8940 if (cdb->byte2 & SRW12_FUA) 8941 flags |= CTL_LLF_FUA; 8942 if (cdb->byte2 & SRW12_DPO) 8943 flags |= CTL_LLF_DPO; 8944 lba = scsi_8btou64(cdb->addr); 8945 num_blocks = scsi_2btoul(cdb->length); 8946 if (num_blocks > lun->be_lun->atomicblock) { 8947 ctl_set_invalid_field(ctsio, /*sks_valid*/ 1, 8948 /*command*/ 1, /*field*/ 12, /*bit_valid*/ 0, 8949 /*bit*/ 0); 8950 ctl_done((union ctl_io *)ctsio); 8951 return (CTL_RETVAL_COMPLETE); 8952 } 8953 break; 8954 } 8955 case WRITE_VERIFY_16: { 8956 struct scsi_write_verify_16 *cdb; 8957 8958 cdb = (struct scsi_write_verify_16 *)ctsio->cdb; 8959 flags |= CTL_LLF_FUA; 8960 if (cdb->byte2 & SWV_DPO) 8961 flags |= CTL_LLF_DPO; 8962 lba = scsi_8btou64(cdb->addr); 8963 num_blocks = scsi_4btoul(cdb->length); 8964 break; 8965 } 8966 default: 8967 /* 8968 * We got a command we don't support. This shouldn't 8969 * happen, commands should be filtered out above us. 8970 */ 8971 ctl_set_invalid_opcode(ctsio); 8972 ctl_done((union ctl_io *)ctsio); 8973 8974 return (CTL_RETVAL_COMPLETE); 8975 break; /* NOTREACHED */ 8976 } 8977 8978 /* 8979 * The first check is to make sure we're in bounds, the second 8980 * check is to catch wrap-around problems. If the lba + num blocks 8981 * is less than the lba, then we've wrapped around and the block 8982 * range is invalid anyway. 8983 */ 8984 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 8985 || ((lba + num_blocks) < lba)) { 8986 ctl_set_lba_out_of_range(ctsio); 8987 ctl_done((union ctl_io *)ctsio); 8988 return (CTL_RETVAL_COMPLETE); 8989 } 8990 8991 /* 8992 * According to SBC-3, a transfer length of 0 is not an error. 8993 * Note that this cannot happen with WRITE(6) or READ(6), since 0 8994 * translates to 256 blocks for those commands. 8995 */ 8996 if (num_blocks == 0) { 8997 ctl_set_success(ctsio); 8998 ctl_done((union ctl_io *)ctsio); 8999 return (CTL_RETVAL_COMPLETE); 9000 } 9001 9002 /* Set FUA and/or DPO if caches are disabled. */ 9003 if (isread) { 9004 if ((lun->mode_pages.caching_page[CTL_PAGE_CURRENT].flags1 & 9005 SCP_RCD) != 0) 9006 flags |= CTL_LLF_FUA | CTL_LLF_DPO; 9007 } else { 9008 if ((lun->mode_pages.caching_page[CTL_PAGE_CURRENT].flags1 & 9009 SCP_WCE) == 0) 9010 flags |= CTL_LLF_FUA; 9011 } 9012 9013 lbalen = (struct ctl_lba_len_flags *) 9014 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 9015 lbalen->lba = lba; 9016 lbalen->len = num_blocks; 9017 lbalen->flags = (isread ? CTL_LLF_READ : CTL_LLF_WRITE) | flags; 9018 9019 ctsio->kern_total_len = num_blocks * lun->be_lun->blocksize; 9020 ctsio->kern_rel_offset = 0; 9021 9022 CTL_DEBUG_PRINT(("ctl_read_write: calling data_submit()\n")); 9023 9024 retval = lun->backend->data_submit((union ctl_io *)ctsio); 9025 9026 return (retval); 9027} 9028 9029static int 9030ctl_cnw_cont(union ctl_io *io) 9031{ 9032 struct ctl_scsiio *ctsio; 9033 struct ctl_lun *lun; 9034 struct ctl_lba_len_flags *lbalen; 9035 int retval; 9036 9037 ctsio = &io->scsiio; 9038 ctsio->io_hdr.status = CTL_STATUS_NONE; 9039 ctsio->io_hdr.flags &= ~CTL_FLAG_IO_CONT; 9040 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9041 lbalen = (struct ctl_lba_len_flags *) 9042 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 9043 lbalen->flags &= ~CTL_LLF_COMPARE; 9044 lbalen->flags |= CTL_LLF_WRITE; 9045 9046 CTL_DEBUG_PRINT(("ctl_cnw_cont: calling data_submit()\n")); 9047 retval = lun->backend->data_submit((union ctl_io *)ctsio); 9048 return (retval); 9049} 9050 9051int 9052ctl_cnw(struct ctl_scsiio *ctsio) 9053{ 9054 struct ctl_lun *lun; 9055 struct ctl_lba_len_flags *lbalen; 9056 uint64_t lba; 9057 uint32_t num_blocks; 9058 int flags, retval; 9059 9060 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9061 9062 CTL_DEBUG_PRINT(("ctl_cnw: command: %#x\n", ctsio->cdb[0])); 9063 9064 flags = 0; 9065 retval = CTL_RETVAL_COMPLETE; 9066 9067 switch (ctsio->cdb[0]) { 9068 case COMPARE_AND_WRITE: { 9069 struct scsi_compare_and_write *cdb; 9070 9071 cdb = (struct scsi_compare_and_write *)ctsio->cdb; 9072 if (cdb->byte2 & SRW10_FUA) 9073 flags |= CTL_LLF_FUA; 9074 if (cdb->byte2 & SRW10_DPO) 9075 flags |= CTL_LLF_DPO; 9076 lba = scsi_8btou64(cdb->addr); 9077 num_blocks = cdb->length; 9078 break; 9079 } 9080 default: 9081 /* 9082 * We got a command we don't support. This shouldn't 9083 * happen, commands should be filtered out above us. 9084 */ 9085 ctl_set_invalid_opcode(ctsio); 9086 ctl_done((union ctl_io *)ctsio); 9087 9088 return (CTL_RETVAL_COMPLETE); 9089 break; /* NOTREACHED */ 9090 } 9091 9092 /* 9093 * The first check is to make sure we're in bounds, the second 9094 * check is to catch wrap-around problems. If the lba + num blocks 9095 * is less than the lba, then we've wrapped around and the block 9096 * range is invalid anyway. 9097 */ 9098 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 9099 || ((lba + num_blocks) < lba)) { 9100 ctl_set_lba_out_of_range(ctsio); 9101 ctl_done((union ctl_io *)ctsio); 9102 return (CTL_RETVAL_COMPLETE); 9103 } 9104 9105 /* 9106 * According to SBC-3, a transfer length of 0 is not an error. 9107 */ 9108 if (num_blocks == 0) { 9109 ctl_set_success(ctsio); 9110 ctl_done((union ctl_io *)ctsio); 9111 return (CTL_RETVAL_COMPLETE); 9112 } 9113 9114 /* Set FUA if write cache is disabled. */ 9115 if ((lun->mode_pages.caching_page[CTL_PAGE_CURRENT].flags1 & 9116 SCP_WCE) == 0) 9117 flags |= CTL_LLF_FUA; 9118 9119 ctsio->kern_total_len = 2 * num_blocks * lun->be_lun->blocksize; 9120 ctsio->kern_rel_offset = 0; 9121 9122 /* 9123 * Set the IO_CONT flag, so that if this I/O gets passed to 9124 * ctl_data_submit_done(), it'll get passed back to 9125 * ctl_ctl_cnw_cont() for further processing. 9126 */ 9127 ctsio->io_hdr.flags |= CTL_FLAG_IO_CONT; 9128 ctsio->io_cont = ctl_cnw_cont; 9129 9130 lbalen = (struct ctl_lba_len_flags *) 9131 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 9132 lbalen->lba = lba; 9133 lbalen->len = num_blocks; 9134 lbalen->flags = CTL_LLF_COMPARE | flags; 9135 9136 CTL_DEBUG_PRINT(("ctl_cnw: calling data_submit()\n")); 9137 retval = lun->backend->data_submit((union ctl_io *)ctsio); 9138 return (retval); 9139} 9140 9141int 9142ctl_verify(struct ctl_scsiio *ctsio) 9143{ 9144 struct ctl_lun *lun; 9145 struct ctl_lba_len_flags *lbalen; 9146 uint64_t lba; 9147 uint32_t num_blocks; 9148 int bytchk, flags; 9149 int retval; 9150 9151 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9152 9153 CTL_DEBUG_PRINT(("ctl_verify: command: %#x\n", ctsio->cdb[0])); 9154 9155 bytchk = 0; 9156 flags = CTL_LLF_FUA; 9157 retval = CTL_RETVAL_COMPLETE; 9158 9159 switch (ctsio->cdb[0]) { 9160 case VERIFY_10: { 9161 struct scsi_verify_10 *cdb; 9162 9163 cdb = (struct scsi_verify_10 *)ctsio->cdb; 9164 if (cdb->byte2 & SVFY_BYTCHK) 9165 bytchk = 1; 9166 if (cdb->byte2 & SVFY_DPO) 9167 flags |= CTL_LLF_DPO; 9168 lba = scsi_4btoul(cdb->addr); 9169 num_blocks = scsi_2btoul(cdb->length); 9170 break; 9171 } 9172 case VERIFY_12: { 9173 struct scsi_verify_12 *cdb; 9174 9175 cdb = (struct scsi_verify_12 *)ctsio->cdb; 9176 if (cdb->byte2 & SVFY_BYTCHK) 9177 bytchk = 1; 9178 if (cdb->byte2 & SVFY_DPO) 9179 flags |= CTL_LLF_DPO; 9180 lba = scsi_4btoul(cdb->addr); 9181 num_blocks = scsi_4btoul(cdb->length); 9182 break; 9183 } 9184 case VERIFY_16: { 9185 struct scsi_rw_16 *cdb; 9186 9187 cdb = (struct scsi_rw_16 *)ctsio->cdb; 9188 if (cdb->byte2 & SVFY_BYTCHK) 9189 bytchk = 1; 9190 if (cdb->byte2 & SVFY_DPO) 9191 flags |= CTL_LLF_DPO; 9192 lba = scsi_8btou64(cdb->addr); 9193 num_blocks = scsi_4btoul(cdb->length); 9194 break; 9195 } 9196 default: 9197 /* 9198 * We got a command we don't support. This shouldn't 9199 * happen, commands should be filtered out above us. 9200 */ 9201 ctl_set_invalid_opcode(ctsio); 9202 ctl_done((union ctl_io *)ctsio); 9203 return (CTL_RETVAL_COMPLETE); 9204 } 9205 9206 /* 9207 * The first check is to make sure we're in bounds, the second 9208 * check is to catch wrap-around problems. If the lba + num blocks 9209 * is less than the lba, then we've wrapped around and the block 9210 * range is invalid anyway. 9211 */ 9212 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 9213 || ((lba + num_blocks) < lba)) { 9214 ctl_set_lba_out_of_range(ctsio); 9215 ctl_done((union ctl_io *)ctsio); 9216 return (CTL_RETVAL_COMPLETE); 9217 } 9218 9219 /* 9220 * According to SBC-3, a transfer length of 0 is not an error. 9221 */ 9222 if (num_blocks == 0) { 9223 ctl_set_success(ctsio); 9224 ctl_done((union ctl_io *)ctsio); 9225 return (CTL_RETVAL_COMPLETE); 9226 } 9227 9228 lbalen = (struct ctl_lba_len_flags *) 9229 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 9230 lbalen->lba = lba; 9231 lbalen->len = num_blocks; 9232 if (bytchk) { 9233 lbalen->flags = CTL_LLF_COMPARE | flags; 9234 ctsio->kern_total_len = num_blocks * lun->be_lun->blocksize; 9235 } else { 9236 lbalen->flags = CTL_LLF_VERIFY | flags; 9237 ctsio->kern_total_len = 0; 9238 } 9239 ctsio->kern_rel_offset = 0; 9240 9241 CTL_DEBUG_PRINT(("ctl_verify: calling data_submit()\n")); 9242 retval = lun->backend->data_submit((union ctl_io *)ctsio); 9243 return (retval); 9244} 9245 9246int 9247ctl_report_luns(struct ctl_scsiio *ctsio) 9248{ 9249 struct ctl_softc *softc; 9250 struct scsi_report_luns *cdb; 9251 struct scsi_report_luns_data *lun_data; 9252 struct ctl_lun *lun, *request_lun; 9253 struct ctl_port *port; 9254 int num_luns, retval; 9255 uint32_t alloc_len, lun_datalen; 9256 int num_filled; 9257 uint32_t initidx, targ_lun_id, lun_id; 9258 9259 retval = CTL_RETVAL_COMPLETE; 9260 cdb = (struct scsi_report_luns *)ctsio->cdb; 9261 port = ctl_io_port(&ctsio->io_hdr); 9262 softc = port->ctl_softc; 9263 9264 CTL_DEBUG_PRINT(("ctl_report_luns\n")); 9265 9266 mtx_lock(&softc->ctl_lock); 9267 num_luns = 0; 9268 for (targ_lun_id = 0; targ_lun_id < CTL_MAX_LUNS; targ_lun_id++) { 9269 if (ctl_lun_map_from_port(port, targ_lun_id) < CTL_MAX_LUNS) 9270 num_luns++; 9271 } 9272 mtx_unlock(&softc->ctl_lock); 9273 9274 switch (cdb->select_report) { 9275 case RPL_REPORT_DEFAULT: 9276 case RPL_REPORT_ALL: 9277 case RPL_REPORT_NONSUBSID: 9278 break; 9279 case RPL_REPORT_WELLKNOWN: 9280 case RPL_REPORT_ADMIN: 9281 case RPL_REPORT_CONGLOM: 9282 num_luns = 0; 9283 break; 9284 default: 9285 ctl_set_invalid_field(ctsio, 9286 /*sks_valid*/ 1, 9287 /*command*/ 1, 9288 /*field*/ 2, 9289 /*bit_valid*/ 0, 9290 /*bit*/ 0); 9291 ctl_done((union ctl_io *)ctsio); 9292 return (retval); 9293 break; /* NOTREACHED */ 9294 } 9295 9296 alloc_len = scsi_4btoul(cdb->length); 9297 /* 9298 * The initiator has to allocate at least 16 bytes for this request, 9299 * so he can at least get the header and the first LUN. Otherwise 9300 * we reject the request (per SPC-3 rev 14, section 6.21). 9301 */ 9302 if (alloc_len < (sizeof(struct scsi_report_luns_data) + 9303 sizeof(struct scsi_report_luns_lundata))) { 9304 ctl_set_invalid_field(ctsio, 9305 /*sks_valid*/ 1, 9306 /*command*/ 1, 9307 /*field*/ 6, 9308 /*bit_valid*/ 0, 9309 /*bit*/ 0); 9310 ctl_done((union ctl_io *)ctsio); 9311 return (retval); 9312 } 9313 9314 request_lun = (struct ctl_lun *) 9315 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9316 9317 lun_datalen = sizeof(*lun_data) + 9318 (num_luns * sizeof(struct scsi_report_luns_lundata)); 9319 9320 ctsio->kern_data_ptr = malloc(lun_datalen, M_CTL, M_WAITOK | M_ZERO); 9321 lun_data = (struct scsi_report_luns_data *)ctsio->kern_data_ptr; 9322 ctsio->kern_sg_entries = 0; 9323 9324 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 9325 9326 mtx_lock(&softc->ctl_lock); 9327 for (targ_lun_id = 0, num_filled = 0; targ_lun_id < CTL_MAX_LUNS && num_filled < num_luns; targ_lun_id++) { 9328 lun_id = ctl_lun_map_from_port(port, targ_lun_id); 9329 if (lun_id >= CTL_MAX_LUNS) 9330 continue; 9331 lun = softc->ctl_luns[lun_id]; 9332 if (lun == NULL) 9333 continue; 9334 9335 if (targ_lun_id <= 0xff) { 9336 /* 9337 * Peripheral addressing method, bus number 0. 9338 */ 9339 lun_data->luns[num_filled].lundata[0] = 9340 RPL_LUNDATA_ATYP_PERIPH; 9341 lun_data->luns[num_filled].lundata[1] = targ_lun_id; 9342 num_filled++; 9343 } else if (targ_lun_id <= 0x3fff) { 9344 /* 9345 * Flat addressing method. 9346 */ 9347 lun_data->luns[num_filled].lundata[0] = 9348 RPL_LUNDATA_ATYP_FLAT | (targ_lun_id >> 8); 9349 lun_data->luns[num_filled].lundata[1] = 9350 (targ_lun_id & 0xff); 9351 num_filled++; 9352 } else if (targ_lun_id <= 0xffffff) { 9353 /* 9354 * Extended flat addressing method. 9355 */ 9356 lun_data->luns[num_filled].lundata[0] = 9357 RPL_LUNDATA_ATYP_EXTLUN | 0x12; 9358 scsi_ulto3b(targ_lun_id, 9359 &lun_data->luns[num_filled].lundata[1]); 9360 num_filled++; 9361 } else { 9362 printf("ctl_report_luns: bogus LUN number %jd, " 9363 "skipping\n", (intmax_t)targ_lun_id); 9364 } 9365 /* 9366 * According to SPC-3, rev 14 section 6.21: 9367 * 9368 * "The execution of a REPORT LUNS command to any valid and 9369 * installed logical unit shall clear the REPORTED LUNS DATA 9370 * HAS CHANGED unit attention condition for all logical 9371 * units of that target with respect to the requesting 9372 * initiator. A valid and installed logical unit is one 9373 * having a PERIPHERAL QUALIFIER of 000b in the standard 9374 * INQUIRY data (see 6.4.2)." 9375 * 9376 * If request_lun is NULL, the LUN this report luns command 9377 * was issued to is either disabled or doesn't exist. In that 9378 * case, we shouldn't clear any pending lun change unit 9379 * attention. 9380 */ 9381 if (request_lun != NULL) { 9382 mtx_lock(&lun->lun_lock); 9383 ctl_clr_ua(lun, initidx, CTL_UA_LUN_CHANGE); 9384 mtx_unlock(&lun->lun_lock); 9385 } 9386 } 9387 mtx_unlock(&softc->ctl_lock); 9388 9389 /* 9390 * It's quite possible that we've returned fewer LUNs than we allocated 9391 * space for. Trim it. 9392 */ 9393 lun_datalen = sizeof(*lun_data) + 9394 (num_filled * sizeof(struct scsi_report_luns_lundata)); 9395 9396 if (lun_datalen < alloc_len) { 9397 ctsio->residual = alloc_len - lun_datalen; 9398 ctsio->kern_data_len = lun_datalen; 9399 ctsio->kern_total_len = lun_datalen; 9400 } else { 9401 ctsio->residual = 0; 9402 ctsio->kern_data_len = alloc_len; 9403 ctsio->kern_total_len = alloc_len; 9404 } 9405 ctsio->kern_data_resid = 0; 9406 ctsio->kern_rel_offset = 0; 9407 ctsio->kern_sg_entries = 0; 9408 9409 /* 9410 * We set this to the actual data length, regardless of how much 9411 * space we actually have to return results. If the user looks at 9412 * this value, he'll know whether or not he allocated enough space 9413 * and reissue the command if necessary. We don't support well 9414 * known logical units, so if the user asks for that, return none. 9415 */ 9416 scsi_ulto4b(lun_datalen - 8, lun_data->length); 9417 9418 /* 9419 * We can only return SCSI_STATUS_CHECK_COND when we can't satisfy 9420 * this request. 9421 */ 9422 ctl_set_success(ctsio); 9423 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9424 ctsio->be_move_done = ctl_config_move_done; 9425 ctl_datamove((union ctl_io *)ctsio); 9426 return (retval); 9427} 9428 9429int 9430ctl_request_sense(struct ctl_scsiio *ctsio) 9431{ 9432 struct scsi_request_sense *cdb; 9433 struct scsi_sense_data *sense_ptr; 9434 struct ctl_softc *ctl_softc; 9435 struct ctl_lun *lun; 9436 uint32_t initidx; 9437 int have_error; 9438 scsi_sense_data_type sense_format; 9439 ctl_ua_type ua_type; 9440 9441 cdb = (struct scsi_request_sense *)ctsio->cdb; 9442 9443 ctl_softc = control_softc; 9444 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9445 9446 CTL_DEBUG_PRINT(("ctl_request_sense\n")); 9447 9448 /* 9449 * Determine which sense format the user wants. 9450 */ 9451 if (cdb->byte2 & SRS_DESC) 9452 sense_format = SSD_TYPE_DESC; 9453 else 9454 sense_format = SSD_TYPE_FIXED; 9455 9456 ctsio->kern_data_ptr = malloc(sizeof(*sense_ptr), M_CTL, M_WAITOK); 9457 sense_ptr = (struct scsi_sense_data *)ctsio->kern_data_ptr; 9458 ctsio->kern_sg_entries = 0; 9459 9460 /* 9461 * struct scsi_sense_data, which is currently set to 256 bytes, is 9462 * larger than the largest allowed value for the length field in the 9463 * REQUEST SENSE CDB, which is 252 bytes as of SPC-4. 9464 */ 9465 ctsio->residual = 0; 9466 ctsio->kern_data_len = cdb->length; 9467 ctsio->kern_total_len = cdb->length; 9468 9469 ctsio->kern_data_resid = 0; 9470 ctsio->kern_rel_offset = 0; 9471 ctsio->kern_sg_entries = 0; 9472 9473 /* 9474 * If we don't have a LUN, we don't have any pending sense. 9475 */ 9476 if (lun == NULL) 9477 goto no_sense; 9478 9479 have_error = 0; 9480 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 9481 /* 9482 * Check for pending sense, and then for pending unit attentions. 9483 * Pending sense gets returned first, then pending unit attentions. 9484 */ 9485 mtx_lock(&lun->lun_lock); 9486#ifdef CTL_WITH_CA 9487 if (ctl_is_set(lun->have_ca, initidx)) { 9488 scsi_sense_data_type stored_format; 9489 9490 /* 9491 * Check to see which sense format was used for the stored 9492 * sense data. 9493 */ 9494 stored_format = scsi_sense_type(&lun->pending_sense[initidx]); 9495 9496 /* 9497 * If the user requested a different sense format than the 9498 * one we stored, then we need to convert it to the other 9499 * format. If we're going from descriptor to fixed format 9500 * sense data, we may lose things in translation, depending 9501 * on what options were used. 9502 * 9503 * If the stored format is SSD_TYPE_NONE (i.e. invalid), 9504 * for some reason we'll just copy it out as-is. 9505 */ 9506 if ((stored_format == SSD_TYPE_FIXED) 9507 && (sense_format == SSD_TYPE_DESC)) 9508 ctl_sense_to_desc((struct scsi_sense_data_fixed *) 9509 &lun->pending_sense[initidx], 9510 (struct scsi_sense_data_desc *)sense_ptr); 9511 else if ((stored_format == SSD_TYPE_DESC) 9512 && (sense_format == SSD_TYPE_FIXED)) 9513 ctl_sense_to_fixed((struct scsi_sense_data_desc *) 9514 &lun->pending_sense[initidx], 9515 (struct scsi_sense_data_fixed *)sense_ptr); 9516 else 9517 memcpy(sense_ptr, &lun->pending_sense[initidx], 9518 MIN(sizeof(*sense_ptr), 9519 sizeof(lun->pending_sense[initidx]))); 9520 9521 ctl_clear_mask(lun->have_ca, initidx); 9522 have_error = 1; 9523 } else 9524#endif 9525 { 9526 ua_type = ctl_build_ua(lun, initidx, sense_ptr, sense_format); 9527 if (ua_type != CTL_UA_NONE) 9528 have_error = 1; 9529 if (ua_type == CTL_UA_LUN_CHANGE) { 9530 mtx_unlock(&lun->lun_lock); 9531 mtx_lock(&ctl_softc->ctl_lock); 9532 ctl_clr_ua_allluns(ctl_softc, initidx, ua_type); 9533 mtx_unlock(&ctl_softc->ctl_lock); 9534 mtx_lock(&lun->lun_lock); 9535 } 9536 9537 } 9538 mtx_unlock(&lun->lun_lock); 9539 9540 /* 9541 * We already have a pending error, return it. 9542 */ 9543 if (have_error != 0) { 9544 /* 9545 * We report the SCSI status as OK, since the status of the 9546 * request sense command itself is OK. 9547 * We report 0 for the sense length, because we aren't doing 9548 * autosense in this case. We're reporting sense as 9549 * parameter data. 9550 */ 9551 ctl_set_success(ctsio); 9552 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9553 ctsio->be_move_done = ctl_config_move_done; 9554 ctl_datamove((union ctl_io *)ctsio); 9555 return (CTL_RETVAL_COMPLETE); 9556 } 9557 9558no_sense: 9559 9560 /* 9561 * No sense information to report, so we report that everything is 9562 * okay. 9563 */ 9564 ctl_set_sense_data(sense_ptr, 9565 lun, 9566 sense_format, 9567 /*current_error*/ 1, 9568 /*sense_key*/ SSD_KEY_NO_SENSE, 9569 /*asc*/ 0x00, 9570 /*ascq*/ 0x00, 9571 SSD_ELEM_NONE); 9572 9573 /* 9574 * We report 0 for the sense length, because we aren't doing 9575 * autosense in this case. We're reporting sense as parameter data. 9576 */ 9577 ctl_set_success(ctsio); 9578 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9579 ctsio->be_move_done = ctl_config_move_done; 9580 ctl_datamove((union ctl_io *)ctsio); 9581 return (CTL_RETVAL_COMPLETE); 9582} 9583 9584int 9585ctl_tur(struct ctl_scsiio *ctsio) 9586{ 9587 9588 CTL_DEBUG_PRINT(("ctl_tur\n")); 9589 9590 ctl_set_success(ctsio); 9591 ctl_done((union ctl_io *)ctsio); 9592 9593 return (CTL_RETVAL_COMPLETE); 9594} 9595 9596/* 9597 * SCSI VPD page 0x00, the Supported VPD Pages page. 9598 */ 9599static int 9600ctl_inquiry_evpd_supported(struct ctl_scsiio *ctsio, int alloc_len) 9601{ 9602 struct scsi_vpd_supported_pages *pages; 9603 int sup_page_size; 9604 struct ctl_lun *lun; 9605 int p; 9606 9607 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9608 9609 sup_page_size = sizeof(struct scsi_vpd_supported_pages) * 9610 SCSI_EVPD_NUM_SUPPORTED_PAGES; 9611 ctsio->kern_data_ptr = malloc(sup_page_size, M_CTL, M_WAITOK | M_ZERO); 9612 pages = (struct scsi_vpd_supported_pages *)ctsio->kern_data_ptr; 9613 ctsio->kern_sg_entries = 0; 9614 9615 if (sup_page_size < alloc_len) { 9616 ctsio->residual = alloc_len - sup_page_size; 9617 ctsio->kern_data_len = sup_page_size; 9618 ctsio->kern_total_len = sup_page_size; 9619 } else { 9620 ctsio->residual = 0; 9621 ctsio->kern_data_len = alloc_len; 9622 ctsio->kern_total_len = alloc_len; 9623 } 9624 ctsio->kern_data_resid = 0; 9625 ctsio->kern_rel_offset = 0; 9626 ctsio->kern_sg_entries = 0; 9627 9628 /* 9629 * The control device is always connected. The disk device, on the 9630 * other hand, may not be online all the time. Need to change this 9631 * to figure out whether the disk device is actually online or not. 9632 */ 9633 if (lun != NULL) 9634 pages->device = (SID_QUAL_LU_CONNECTED << 5) | 9635 lun->be_lun->lun_type; 9636 else 9637 pages->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9638 9639 p = 0; 9640 /* Supported VPD pages */ 9641 pages->page_list[p++] = SVPD_SUPPORTED_PAGES; 9642 /* Serial Number */ 9643 pages->page_list[p++] = SVPD_UNIT_SERIAL_NUMBER; 9644 /* Device Identification */ 9645 pages->page_list[p++] = SVPD_DEVICE_ID; 9646 /* Extended INQUIRY Data */ 9647 pages->page_list[p++] = SVPD_EXTENDED_INQUIRY_DATA; 9648 /* Mode Page Policy */ 9649 pages->page_list[p++] = SVPD_MODE_PAGE_POLICY; 9650 /* SCSI Ports */ 9651 pages->page_list[p++] = SVPD_SCSI_PORTS; 9652 /* Third-party Copy */ 9653 pages->page_list[p++] = SVPD_SCSI_TPC; 9654 if (lun != NULL && lun->be_lun->lun_type == T_DIRECT) { 9655 /* Block limits */ 9656 pages->page_list[p++] = SVPD_BLOCK_LIMITS; 9657 /* Block Device Characteristics */ 9658 pages->page_list[p++] = SVPD_BDC; 9659 /* Logical Block Provisioning */ 9660 pages->page_list[p++] = SVPD_LBP; 9661 } 9662 pages->length = p; 9663 9664 ctl_set_success(ctsio); 9665 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9666 ctsio->be_move_done = ctl_config_move_done; 9667 ctl_datamove((union ctl_io *)ctsio); 9668 return (CTL_RETVAL_COMPLETE); 9669} 9670 9671/* 9672 * SCSI VPD page 0x80, the Unit Serial Number page. 9673 */ 9674static int 9675ctl_inquiry_evpd_serial(struct ctl_scsiio *ctsio, int alloc_len) 9676{ 9677 struct scsi_vpd_unit_serial_number *sn_ptr; 9678 struct ctl_lun *lun; 9679 int data_len; 9680 9681 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9682 9683 data_len = 4 + CTL_SN_LEN; 9684 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9685 sn_ptr = (struct scsi_vpd_unit_serial_number *)ctsio->kern_data_ptr; 9686 if (data_len < alloc_len) { 9687 ctsio->residual = alloc_len - data_len; 9688 ctsio->kern_data_len = data_len; 9689 ctsio->kern_total_len = data_len; 9690 } else { 9691 ctsio->residual = 0; 9692 ctsio->kern_data_len = alloc_len; 9693 ctsio->kern_total_len = alloc_len; 9694 } 9695 ctsio->kern_data_resid = 0; 9696 ctsio->kern_rel_offset = 0; 9697 ctsio->kern_sg_entries = 0; 9698 9699 /* 9700 * The control device is always connected. The disk device, on the 9701 * other hand, may not be online all the time. Need to change this 9702 * to figure out whether the disk device is actually online or not. 9703 */ 9704 if (lun != NULL) 9705 sn_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9706 lun->be_lun->lun_type; 9707 else 9708 sn_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9709 9710 sn_ptr->page_code = SVPD_UNIT_SERIAL_NUMBER; 9711 sn_ptr->length = CTL_SN_LEN; 9712 /* 9713 * If we don't have a LUN, we just leave the serial number as 9714 * all spaces. 9715 */ 9716 if (lun != NULL) { 9717 strncpy((char *)sn_ptr->serial_num, 9718 (char *)lun->be_lun->serial_num, CTL_SN_LEN); 9719 } else 9720 memset(sn_ptr->serial_num, 0x20, CTL_SN_LEN); 9721 9722 ctl_set_success(ctsio); 9723 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9724 ctsio->be_move_done = ctl_config_move_done; 9725 ctl_datamove((union ctl_io *)ctsio); 9726 return (CTL_RETVAL_COMPLETE); 9727} 9728 9729 9730/* 9731 * SCSI VPD page 0x86, the Extended INQUIRY Data page. 9732 */ 9733static int 9734ctl_inquiry_evpd_eid(struct ctl_scsiio *ctsio, int alloc_len) 9735{ 9736 struct scsi_vpd_extended_inquiry_data *eid_ptr; 9737 struct ctl_lun *lun; 9738 int data_len; 9739 9740 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9741 9742 data_len = sizeof(struct scsi_vpd_extended_inquiry_data); 9743 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9744 eid_ptr = (struct scsi_vpd_extended_inquiry_data *)ctsio->kern_data_ptr; 9745 ctsio->kern_sg_entries = 0; 9746 9747 if (data_len < alloc_len) { 9748 ctsio->residual = alloc_len - data_len; 9749 ctsio->kern_data_len = data_len; 9750 ctsio->kern_total_len = data_len; 9751 } else { 9752 ctsio->residual = 0; 9753 ctsio->kern_data_len = alloc_len; 9754 ctsio->kern_total_len = alloc_len; 9755 } 9756 ctsio->kern_data_resid = 0; 9757 ctsio->kern_rel_offset = 0; 9758 ctsio->kern_sg_entries = 0; 9759 9760 /* 9761 * The control device is always connected. The disk device, on the 9762 * other hand, may not be online all the time. 9763 */ 9764 if (lun != NULL) 9765 eid_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9766 lun->be_lun->lun_type; 9767 else 9768 eid_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9769 eid_ptr->page_code = SVPD_EXTENDED_INQUIRY_DATA; 9770 scsi_ulto2b(data_len - 4, eid_ptr->page_length); 9771 /* 9772 * We support head of queue, ordered and simple tags. 9773 */ 9774 eid_ptr->flags2 = SVPD_EID_HEADSUP | SVPD_EID_ORDSUP | SVPD_EID_SIMPSUP; 9775 /* 9776 * Volatile cache supported. 9777 */ 9778 eid_ptr->flags3 = SVPD_EID_V_SUP; 9779 9780 /* 9781 * This means that we clear the REPORTED LUNS DATA HAS CHANGED unit 9782 * attention for a particular IT nexus on all LUNs once we report 9783 * it to that nexus once. This bit is required as of SPC-4. 9784 */ 9785 eid_ptr->flags4 = SVPD_EID_LUICLT; 9786 9787 /* 9788 * XXX KDM in order to correctly answer this, we would need 9789 * information from the SIM to determine how much sense data it 9790 * can send. So this would really be a path inquiry field, most 9791 * likely. This can be set to a maximum of 252 according to SPC-4, 9792 * but the hardware may or may not be able to support that much. 9793 * 0 just means that the maximum sense data length is not reported. 9794 */ 9795 eid_ptr->max_sense_length = 0; 9796 9797 ctl_set_success(ctsio); 9798 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9799 ctsio->be_move_done = ctl_config_move_done; 9800 ctl_datamove((union ctl_io *)ctsio); 9801 return (CTL_RETVAL_COMPLETE); 9802} 9803 9804static int 9805ctl_inquiry_evpd_mpp(struct ctl_scsiio *ctsio, int alloc_len) 9806{ 9807 struct scsi_vpd_mode_page_policy *mpp_ptr; 9808 struct ctl_lun *lun; 9809 int data_len; 9810 9811 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9812 9813 data_len = sizeof(struct scsi_vpd_mode_page_policy) + 9814 sizeof(struct scsi_vpd_mode_page_policy_descr); 9815 9816 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9817 mpp_ptr = (struct scsi_vpd_mode_page_policy *)ctsio->kern_data_ptr; 9818 ctsio->kern_sg_entries = 0; 9819 9820 if (data_len < alloc_len) { 9821 ctsio->residual = alloc_len - data_len; 9822 ctsio->kern_data_len = data_len; 9823 ctsio->kern_total_len = data_len; 9824 } else { 9825 ctsio->residual = 0; 9826 ctsio->kern_data_len = alloc_len; 9827 ctsio->kern_total_len = alloc_len; 9828 } 9829 ctsio->kern_data_resid = 0; 9830 ctsio->kern_rel_offset = 0; 9831 ctsio->kern_sg_entries = 0; 9832 9833 /* 9834 * The control device is always connected. The disk device, on the 9835 * other hand, may not be online all the time. 9836 */ 9837 if (lun != NULL) 9838 mpp_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9839 lun->be_lun->lun_type; 9840 else 9841 mpp_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9842 mpp_ptr->page_code = SVPD_MODE_PAGE_POLICY; 9843 scsi_ulto2b(data_len - 4, mpp_ptr->page_length); 9844 mpp_ptr->descr[0].page_code = 0x3f; 9845 mpp_ptr->descr[0].subpage_code = 0xff; 9846 mpp_ptr->descr[0].policy = SVPD_MPP_SHARED; 9847 9848 ctl_set_success(ctsio); 9849 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9850 ctsio->be_move_done = ctl_config_move_done; 9851 ctl_datamove((union ctl_io *)ctsio); 9852 return (CTL_RETVAL_COMPLETE); 9853} 9854 9855/* 9856 * SCSI VPD page 0x83, the Device Identification page. 9857 */ 9858static int 9859ctl_inquiry_evpd_devid(struct ctl_scsiio *ctsio, int alloc_len) 9860{ 9861 struct scsi_vpd_device_id *devid_ptr; 9862 struct scsi_vpd_id_descriptor *desc; 9863 struct ctl_softc *softc; 9864 struct ctl_lun *lun; 9865 struct ctl_port *port; 9866 int data_len; 9867 uint8_t proto; 9868 9869 softc = control_softc; 9870 9871 port = ctl_io_port(&ctsio->io_hdr); 9872 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9873 9874 data_len = sizeof(struct scsi_vpd_device_id) + 9875 sizeof(struct scsi_vpd_id_descriptor) + 9876 sizeof(struct scsi_vpd_id_rel_trgt_port_id) + 9877 sizeof(struct scsi_vpd_id_descriptor) + 9878 sizeof(struct scsi_vpd_id_trgt_port_grp_id); 9879 if (lun && lun->lun_devid) 9880 data_len += lun->lun_devid->len; 9881 if (port && port->port_devid) 9882 data_len += port->port_devid->len; 9883 if (port && port->target_devid) 9884 data_len += port->target_devid->len; 9885 9886 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9887 devid_ptr = (struct scsi_vpd_device_id *)ctsio->kern_data_ptr; 9888 ctsio->kern_sg_entries = 0; 9889 9890 if (data_len < alloc_len) { 9891 ctsio->residual = alloc_len - data_len; 9892 ctsio->kern_data_len = data_len; 9893 ctsio->kern_total_len = data_len; 9894 } else { 9895 ctsio->residual = 0; 9896 ctsio->kern_data_len = alloc_len; 9897 ctsio->kern_total_len = alloc_len; 9898 } 9899 ctsio->kern_data_resid = 0; 9900 ctsio->kern_rel_offset = 0; 9901 ctsio->kern_sg_entries = 0; 9902 9903 /* 9904 * The control device is always connected. The disk device, on the 9905 * other hand, may not be online all the time. 9906 */ 9907 if (lun != NULL) 9908 devid_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9909 lun->be_lun->lun_type; 9910 else 9911 devid_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9912 devid_ptr->page_code = SVPD_DEVICE_ID; 9913 scsi_ulto2b(data_len - 4, devid_ptr->length); 9914 9915 if (port && port->port_type == CTL_PORT_FC) 9916 proto = SCSI_PROTO_FC << 4; 9917 else if (port && port->port_type == CTL_PORT_ISCSI) 9918 proto = SCSI_PROTO_ISCSI << 4; 9919 else 9920 proto = SCSI_PROTO_SPI << 4; 9921 desc = (struct scsi_vpd_id_descriptor *)devid_ptr->desc_list; 9922 9923 /* 9924 * We're using a LUN association here. i.e., this device ID is a 9925 * per-LUN identifier. 9926 */ 9927 if (lun && lun->lun_devid) { 9928 memcpy(desc, lun->lun_devid->data, lun->lun_devid->len); 9929 desc = (struct scsi_vpd_id_descriptor *)((uint8_t *)desc + 9930 lun->lun_devid->len); 9931 } 9932 9933 /* 9934 * This is for the WWPN which is a port association. 9935 */ 9936 if (port && port->port_devid) { 9937 memcpy(desc, port->port_devid->data, port->port_devid->len); 9938 desc = (struct scsi_vpd_id_descriptor *)((uint8_t *)desc + 9939 port->port_devid->len); 9940 } 9941 9942 /* 9943 * This is for the Relative Target Port(type 4h) identifier 9944 */ 9945 desc->proto_codeset = proto | SVPD_ID_CODESET_BINARY; 9946 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_PORT | 9947 SVPD_ID_TYPE_RELTARG; 9948 desc->length = 4; 9949 scsi_ulto2b(ctsio->io_hdr.nexus.targ_port, &desc->identifier[2]); 9950 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 9951 sizeof(struct scsi_vpd_id_rel_trgt_port_id)); 9952 9953 /* 9954 * This is for the Target Port Group(type 5h) identifier 9955 */ 9956 desc->proto_codeset = proto | SVPD_ID_CODESET_BINARY; 9957 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_PORT | 9958 SVPD_ID_TYPE_TPORTGRP; 9959 desc->length = 4; 9960 scsi_ulto2b(ctsio->io_hdr.nexus.targ_port / softc->port_cnt + 1, 9961 &desc->identifier[2]); 9962 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 9963 sizeof(struct scsi_vpd_id_trgt_port_grp_id)); 9964 9965 /* 9966 * This is for the Target identifier 9967 */ 9968 if (port && port->target_devid) { 9969 memcpy(desc, port->target_devid->data, port->target_devid->len); 9970 } 9971 9972 ctl_set_success(ctsio); 9973 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9974 ctsio->be_move_done = ctl_config_move_done; 9975 ctl_datamove((union ctl_io *)ctsio); 9976 return (CTL_RETVAL_COMPLETE); 9977} 9978 9979static int 9980ctl_inquiry_evpd_scsi_ports(struct ctl_scsiio *ctsio, int alloc_len) 9981{ 9982 struct ctl_softc *softc = control_softc; 9983 struct scsi_vpd_scsi_ports *sp; 9984 struct scsi_vpd_port_designation *pd; 9985 struct scsi_vpd_port_designation_cont *pdc; 9986 struct ctl_lun *lun; 9987 struct ctl_port *port; 9988 int data_len, num_target_ports, iid_len, id_len; 9989 9990 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9991 9992 num_target_ports = 0; 9993 iid_len = 0; 9994 id_len = 0; 9995 mtx_lock(&softc->ctl_lock); 9996 STAILQ_FOREACH(port, &softc->port_list, links) { 9997 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 9998 continue; 9999 if (lun != NULL && 10000 ctl_lun_map_to_port(port, lun->lun) >= CTL_MAX_LUNS) 10001 continue; 10002 num_target_ports++; 10003 if (port->init_devid) 10004 iid_len += port->init_devid->len; 10005 if (port->port_devid) 10006 id_len += port->port_devid->len; 10007 } 10008 mtx_unlock(&softc->ctl_lock); 10009 10010 data_len = sizeof(struct scsi_vpd_scsi_ports) + 10011 num_target_ports * (sizeof(struct scsi_vpd_port_designation) + 10012 sizeof(struct scsi_vpd_port_designation_cont)) + iid_len + id_len; 10013 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 10014 sp = (struct scsi_vpd_scsi_ports *)ctsio->kern_data_ptr; 10015 ctsio->kern_sg_entries = 0; 10016 10017 if (data_len < alloc_len) { 10018 ctsio->residual = alloc_len - data_len; 10019 ctsio->kern_data_len = data_len; 10020 ctsio->kern_total_len = data_len; 10021 } else { 10022 ctsio->residual = 0; 10023 ctsio->kern_data_len = alloc_len; 10024 ctsio->kern_total_len = alloc_len; 10025 } 10026 ctsio->kern_data_resid = 0; 10027 ctsio->kern_rel_offset = 0; 10028 ctsio->kern_sg_entries = 0; 10029 10030 /* 10031 * The control device is always connected. The disk device, on the 10032 * other hand, may not be online all the time. Need to change this 10033 * to figure out whether the disk device is actually online or not. 10034 */ 10035 if (lun != NULL) 10036 sp->device = (SID_QUAL_LU_CONNECTED << 5) | 10037 lun->be_lun->lun_type; 10038 else 10039 sp->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10040 10041 sp->page_code = SVPD_SCSI_PORTS; 10042 scsi_ulto2b(data_len - sizeof(struct scsi_vpd_scsi_ports), 10043 sp->page_length); 10044 pd = &sp->design[0]; 10045 10046 mtx_lock(&softc->ctl_lock); 10047 STAILQ_FOREACH(port, &softc->port_list, links) { 10048 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 10049 continue; 10050 if (lun != NULL && 10051 ctl_lun_map_to_port(port, lun->lun) >= CTL_MAX_LUNS) 10052 continue; 10053 scsi_ulto2b(port->targ_port, pd->relative_port_id); 10054 if (port->init_devid) { 10055 iid_len = port->init_devid->len; 10056 memcpy(pd->initiator_transportid, 10057 port->init_devid->data, port->init_devid->len); 10058 } else 10059 iid_len = 0; 10060 scsi_ulto2b(iid_len, pd->initiator_transportid_length); 10061 pdc = (struct scsi_vpd_port_designation_cont *) 10062 (&pd->initiator_transportid[iid_len]); 10063 if (port->port_devid) { 10064 id_len = port->port_devid->len; 10065 memcpy(pdc->target_port_descriptors, 10066 port->port_devid->data, port->port_devid->len); 10067 } else 10068 id_len = 0; 10069 scsi_ulto2b(id_len, pdc->target_port_descriptors_length); 10070 pd = (struct scsi_vpd_port_designation *) 10071 ((uint8_t *)pdc->target_port_descriptors + id_len); 10072 } 10073 mtx_unlock(&softc->ctl_lock); 10074 10075 ctl_set_success(ctsio); 10076 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10077 ctsio->be_move_done = ctl_config_move_done; 10078 ctl_datamove((union ctl_io *)ctsio); 10079 return (CTL_RETVAL_COMPLETE); 10080} 10081 10082static int 10083ctl_inquiry_evpd_block_limits(struct ctl_scsiio *ctsio, int alloc_len) 10084{ 10085 struct scsi_vpd_block_limits *bl_ptr; 10086 struct ctl_lun *lun; 10087 int bs; 10088 10089 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10090 10091 ctsio->kern_data_ptr = malloc(sizeof(*bl_ptr), M_CTL, M_WAITOK | M_ZERO); 10092 bl_ptr = (struct scsi_vpd_block_limits *)ctsio->kern_data_ptr; 10093 ctsio->kern_sg_entries = 0; 10094 10095 if (sizeof(*bl_ptr) < alloc_len) { 10096 ctsio->residual = alloc_len - sizeof(*bl_ptr); 10097 ctsio->kern_data_len = sizeof(*bl_ptr); 10098 ctsio->kern_total_len = sizeof(*bl_ptr); 10099 } else { 10100 ctsio->residual = 0; 10101 ctsio->kern_data_len = alloc_len; 10102 ctsio->kern_total_len = alloc_len; 10103 } 10104 ctsio->kern_data_resid = 0; 10105 ctsio->kern_rel_offset = 0; 10106 ctsio->kern_sg_entries = 0; 10107 10108 /* 10109 * The control device is always connected. The disk device, on the 10110 * other hand, may not be online all the time. Need to change this 10111 * to figure out whether the disk device is actually online or not. 10112 */ 10113 if (lun != NULL) 10114 bl_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10115 lun->be_lun->lun_type; 10116 else 10117 bl_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10118 10119 bl_ptr->page_code = SVPD_BLOCK_LIMITS; 10120 scsi_ulto2b(sizeof(*bl_ptr) - 4, bl_ptr->page_length); 10121 bl_ptr->max_cmp_write_len = 0xff; 10122 scsi_ulto4b(0xffffffff, bl_ptr->max_txfer_len); 10123 if (lun != NULL) { 10124 bs = lun->be_lun->blocksize; 10125 scsi_ulto4b(lun->be_lun->opttxferlen, bl_ptr->opt_txfer_len); 10126 if (lun->be_lun->flags & CTL_LUN_FLAG_UNMAP) { 10127 scsi_ulto4b(0xffffffff, bl_ptr->max_unmap_lba_cnt); 10128 scsi_ulto4b(0xffffffff, bl_ptr->max_unmap_blk_cnt); 10129 if (lun->be_lun->ublockexp != 0) { 10130 scsi_ulto4b((1 << lun->be_lun->ublockexp), 10131 bl_ptr->opt_unmap_grain); 10132 scsi_ulto4b(0x80000000 | lun->be_lun->ublockoff, 10133 bl_ptr->unmap_grain_align); 10134 } 10135 } 10136 scsi_ulto4b(lun->be_lun->atomicblock, 10137 bl_ptr->max_atomic_transfer_length); 10138 scsi_ulto4b(0, bl_ptr->atomic_alignment); 10139 scsi_ulto4b(0, bl_ptr->atomic_transfer_length_granularity); 10140 scsi_ulto4b(0, bl_ptr->max_atomic_transfer_length_with_atomic_boundary); 10141 scsi_ulto4b(0, bl_ptr->max_atomic_boundary_size); 10142 } 10143 scsi_u64to8b(UINT64_MAX, bl_ptr->max_write_same_length); 10144 10145 ctl_set_success(ctsio); 10146 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10147 ctsio->be_move_done = ctl_config_move_done; 10148 ctl_datamove((union ctl_io *)ctsio); 10149 return (CTL_RETVAL_COMPLETE); 10150} 10151 10152static int 10153ctl_inquiry_evpd_bdc(struct ctl_scsiio *ctsio, int alloc_len) 10154{ 10155 struct scsi_vpd_block_device_characteristics *bdc_ptr; 10156 struct ctl_lun *lun; 10157 const char *value; 10158 u_int i; 10159 10160 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10161 10162 ctsio->kern_data_ptr = malloc(sizeof(*bdc_ptr), M_CTL, M_WAITOK | M_ZERO); 10163 bdc_ptr = (struct scsi_vpd_block_device_characteristics *)ctsio->kern_data_ptr; 10164 ctsio->kern_sg_entries = 0; 10165 10166 if (sizeof(*bdc_ptr) < alloc_len) { 10167 ctsio->residual = alloc_len - sizeof(*bdc_ptr); 10168 ctsio->kern_data_len = sizeof(*bdc_ptr); 10169 ctsio->kern_total_len = sizeof(*bdc_ptr); 10170 } else { 10171 ctsio->residual = 0; 10172 ctsio->kern_data_len = alloc_len; 10173 ctsio->kern_total_len = alloc_len; 10174 } 10175 ctsio->kern_data_resid = 0; 10176 ctsio->kern_rel_offset = 0; 10177 ctsio->kern_sg_entries = 0; 10178 10179 /* 10180 * The control device is always connected. The disk device, on the 10181 * other hand, may not be online all the time. Need to change this 10182 * to figure out whether the disk device is actually online or not. 10183 */ 10184 if (lun != NULL) 10185 bdc_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10186 lun->be_lun->lun_type; 10187 else 10188 bdc_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10189 bdc_ptr->page_code = SVPD_BDC; 10190 scsi_ulto2b(sizeof(*bdc_ptr) - 4, bdc_ptr->page_length); 10191 if (lun != NULL && 10192 (value = ctl_get_opt(&lun->be_lun->options, "rpm")) != NULL) 10193 i = strtol(value, NULL, 0); 10194 else 10195 i = CTL_DEFAULT_ROTATION_RATE; 10196 scsi_ulto2b(i, bdc_ptr->medium_rotation_rate); 10197 if (lun != NULL && 10198 (value = ctl_get_opt(&lun->be_lun->options, "formfactor")) != NULL) 10199 i = strtol(value, NULL, 0); 10200 else 10201 i = 0; 10202 bdc_ptr->wab_wac_ff = (i & 0x0f); 10203 bdc_ptr->flags = SVPD_FUAB | SVPD_VBULS; 10204 10205 ctl_set_success(ctsio); 10206 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10207 ctsio->be_move_done = ctl_config_move_done; 10208 ctl_datamove((union ctl_io *)ctsio); 10209 return (CTL_RETVAL_COMPLETE); 10210} 10211 10212static int 10213ctl_inquiry_evpd_lbp(struct ctl_scsiio *ctsio, int alloc_len) 10214{ 10215 struct scsi_vpd_logical_block_prov *lbp_ptr; 10216 struct ctl_lun *lun; 10217 10218 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10219 10220 ctsio->kern_data_ptr = malloc(sizeof(*lbp_ptr), M_CTL, M_WAITOK | M_ZERO); 10221 lbp_ptr = (struct scsi_vpd_logical_block_prov *)ctsio->kern_data_ptr; 10222 ctsio->kern_sg_entries = 0; 10223 10224 if (sizeof(*lbp_ptr) < alloc_len) { 10225 ctsio->residual = alloc_len - sizeof(*lbp_ptr); 10226 ctsio->kern_data_len = sizeof(*lbp_ptr); 10227 ctsio->kern_total_len = sizeof(*lbp_ptr); 10228 } else { 10229 ctsio->residual = 0; 10230 ctsio->kern_data_len = alloc_len; 10231 ctsio->kern_total_len = alloc_len; 10232 } 10233 ctsio->kern_data_resid = 0; 10234 ctsio->kern_rel_offset = 0; 10235 ctsio->kern_sg_entries = 0; 10236 10237 /* 10238 * The control device is always connected. The disk device, on the 10239 * other hand, may not be online all the time. Need to change this 10240 * to figure out whether the disk device is actually online or not. 10241 */ 10242 if (lun != NULL) 10243 lbp_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10244 lun->be_lun->lun_type; 10245 else 10246 lbp_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10247 10248 lbp_ptr->page_code = SVPD_LBP; 10249 scsi_ulto2b(sizeof(*lbp_ptr) - 4, lbp_ptr->page_length); 10250 lbp_ptr->threshold_exponent = CTL_LBP_EXPONENT; 10251 if (lun != NULL && lun->be_lun->flags & CTL_LUN_FLAG_UNMAP) { 10252 lbp_ptr->flags = SVPD_LBP_UNMAP | SVPD_LBP_WS16 | 10253 SVPD_LBP_WS10 | SVPD_LBP_RZ | SVPD_LBP_ANC_SUP; 10254 lbp_ptr->prov_type = SVPD_LBP_THIN; 10255 } 10256 10257 ctl_set_success(ctsio); 10258 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10259 ctsio->be_move_done = ctl_config_move_done; 10260 ctl_datamove((union ctl_io *)ctsio); 10261 return (CTL_RETVAL_COMPLETE); 10262} 10263 10264/* 10265 * INQUIRY with the EVPD bit set. 10266 */ 10267static int 10268ctl_inquiry_evpd(struct ctl_scsiio *ctsio) 10269{ 10270 struct ctl_lun *lun; 10271 struct scsi_inquiry *cdb; 10272 int alloc_len, retval; 10273 10274 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10275 cdb = (struct scsi_inquiry *)ctsio->cdb; 10276 alloc_len = scsi_2btoul(cdb->length); 10277 10278 switch (cdb->page_code) { 10279 case SVPD_SUPPORTED_PAGES: 10280 retval = ctl_inquiry_evpd_supported(ctsio, alloc_len); 10281 break; 10282 case SVPD_UNIT_SERIAL_NUMBER: 10283 retval = ctl_inquiry_evpd_serial(ctsio, alloc_len); 10284 break; 10285 case SVPD_DEVICE_ID: 10286 retval = ctl_inquiry_evpd_devid(ctsio, alloc_len); 10287 break; 10288 case SVPD_EXTENDED_INQUIRY_DATA: 10289 retval = ctl_inquiry_evpd_eid(ctsio, alloc_len); 10290 break; 10291 case SVPD_MODE_PAGE_POLICY: 10292 retval = ctl_inquiry_evpd_mpp(ctsio, alloc_len); 10293 break; 10294 case SVPD_SCSI_PORTS: 10295 retval = ctl_inquiry_evpd_scsi_ports(ctsio, alloc_len); 10296 break; 10297 case SVPD_SCSI_TPC: 10298 retval = ctl_inquiry_evpd_tpc(ctsio, alloc_len); 10299 break; 10300 case SVPD_BLOCK_LIMITS: 10301 if (lun == NULL || lun->be_lun->lun_type != T_DIRECT) 10302 goto err; 10303 retval = ctl_inquiry_evpd_block_limits(ctsio, alloc_len); 10304 break; 10305 case SVPD_BDC: 10306 if (lun == NULL || lun->be_lun->lun_type != T_DIRECT) 10307 goto err; 10308 retval = ctl_inquiry_evpd_bdc(ctsio, alloc_len); 10309 break; 10310 case SVPD_LBP: 10311 if (lun == NULL || lun->be_lun->lun_type != T_DIRECT) 10312 goto err; 10313 retval = ctl_inquiry_evpd_lbp(ctsio, alloc_len); 10314 break; 10315 default: 10316err: 10317 ctl_set_invalid_field(ctsio, 10318 /*sks_valid*/ 1, 10319 /*command*/ 1, 10320 /*field*/ 2, 10321 /*bit_valid*/ 0, 10322 /*bit*/ 0); 10323 ctl_done((union ctl_io *)ctsio); 10324 retval = CTL_RETVAL_COMPLETE; 10325 break; 10326 } 10327 10328 return (retval); 10329} 10330 10331/* 10332 * Standard INQUIRY data. 10333 */ 10334static int 10335ctl_inquiry_std(struct ctl_scsiio *ctsio) 10336{ 10337 struct scsi_inquiry_data *inq_ptr; 10338 struct scsi_inquiry *cdb; 10339 struct ctl_softc *softc = control_softc; 10340 struct ctl_port *port; 10341 struct ctl_lun *lun; 10342 char *val; 10343 uint32_t alloc_len, data_len; 10344 ctl_port_type port_type; 10345 10346 /* 10347 * Figure out whether we're talking to a Fibre Channel port or not. 10348 * We treat the ioctl front end, and any SCSI adapters, as packetized 10349 * SCSI front ends. 10350 */ 10351 port = ctl_io_port(&ctsio->io_hdr); 10352 if (port != NULL) 10353 port_type = port->port_type; 10354 else 10355 port_type = CTL_PORT_SCSI; 10356 if (port_type == CTL_PORT_IOCTL || port_type == CTL_PORT_INTERNAL) 10357 port_type = CTL_PORT_SCSI; 10358 10359 lun = ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10360 cdb = (struct scsi_inquiry *)ctsio->cdb; 10361 alloc_len = scsi_2btoul(cdb->length); 10362 10363 /* 10364 * We malloc the full inquiry data size here and fill it 10365 * in. If the user only asks for less, we'll give him 10366 * that much. 10367 */ 10368 data_len = offsetof(struct scsi_inquiry_data, vendor_specific1); 10369 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 10370 inq_ptr = (struct scsi_inquiry_data *)ctsio->kern_data_ptr; 10371 ctsio->kern_sg_entries = 0; 10372 ctsio->kern_data_resid = 0; 10373 ctsio->kern_rel_offset = 0; 10374 10375 if (data_len < alloc_len) { 10376 ctsio->residual = alloc_len - data_len; 10377 ctsio->kern_data_len = data_len; 10378 ctsio->kern_total_len = data_len; 10379 } else { 10380 ctsio->residual = 0; 10381 ctsio->kern_data_len = alloc_len; 10382 ctsio->kern_total_len = alloc_len; 10383 } 10384 10385 if (lun != NULL) { 10386 if ((lun->flags & CTL_LUN_PRIMARY_SC) || 10387 softc->ha_link >= CTL_HA_LINK_UNKNOWN) { 10388 inq_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10389 lun->be_lun->lun_type; 10390 } else { 10391 inq_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | 10392 lun->be_lun->lun_type; 10393 } 10394 } else 10395 inq_ptr->device = (SID_QUAL_BAD_LU << 5) | T_NODEVICE; 10396 10397 /* RMB in byte 2 is 0 */ 10398 inq_ptr->version = SCSI_REV_SPC4; 10399 10400 /* 10401 * According to SAM-3, even if a device only supports a single 10402 * level of LUN addressing, it should still set the HISUP bit: 10403 * 10404 * 4.9.1 Logical unit numbers overview 10405 * 10406 * All logical unit number formats described in this standard are 10407 * hierarchical in structure even when only a single level in that 10408 * hierarchy is used. The HISUP bit shall be set to one in the 10409 * standard INQUIRY data (see SPC-2) when any logical unit number 10410 * format described in this standard is used. Non-hierarchical 10411 * formats are outside the scope of this standard. 10412 * 10413 * Therefore we set the HiSup bit here. 10414 * 10415 * The reponse format is 2, per SPC-3. 10416 */ 10417 inq_ptr->response_format = SID_HiSup | 2; 10418 10419 inq_ptr->additional_length = data_len - 10420 (offsetof(struct scsi_inquiry_data, additional_length) + 1); 10421 CTL_DEBUG_PRINT(("additional_length = %d\n", 10422 inq_ptr->additional_length)); 10423 10424 inq_ptr->spc3_flags = SPC3_SID_3PC | SPC3_SID_TPGS_IMPLICIT; 10425 /* 16 bit addressing */ 10426 if (port_type == CTL_PORT_SCSI) 10427 inq_ptr->spc2_flags = SPC2_SID_ADDR16; 10428 /* XXX set the SID_MultiP bit here if we're actually going to 10429 respond on multiple ports */ 10430 inq_ptr->spc2_flags |= SPC2_SID_MultiP; 10431 10432 /* 16 bit data bus, synchronous transfers */ 10433 if (port_type == CTL_PORT_SCSI) 10434 inq_ptr->flags = SID_WBus16 | SID_Sync; 10435 /* 10436 * XXX KDM do we want to support tagged queueing on the control 10437 * device at all? 10438 */ 10439 if ((lun == NULL) 10440 || (lun->be_lun->lun_type != T_PROCESSOR)) 10441 inq_ptr->flags |= SID_CmdQue; 10442 /* 10443 * Per SPC-3, unused bytes in ASCII strings are filled with spaces. 10444 * We have 8 bytes for the vendor name, and 16 bytes for the device 10445 * name and 4 bytes for the revision. 10446 */ 10447 if (lun == NULL || (val = ctl_get_opt(&lun->be_lun->options, 10448 "vendor")) == NULL) { 10449 strncpy(inq_ptr->vendor, CTL_VENDOR, sizeof(inq_ptr->vendor)); 10450 } else { 10451 memset(inq_ptr->vendor, ' ', sizeof(inq_ptr->vendor)); 10452 strncpy(inq_ptr->vendor, val, 10453 min(sizeof(inq_ptr->vendor), strlen(val))); 10454 } 10455 if (lun == NULL) { 10456 strncpy(inq_ptr->product, CTL_DIRECT_PRODUCT, 10457 sizeof(inq_ptr->product)); 10458 } else if ((val = ctl_get_opt(&lun->be_lun->options, "product")) == NULL) { 10459 switch (lun->be_lun->lun_type) { 10460 case T_DIRECT: 10461 strncpy(inq_ptr->product, CTL_DIRECT_PRODUCT, 10462 sizeof(inq_ptr->product)); 10463 break; 10464 case T_PROCESSOR: 10465 strncpy(inq_ptr->product, CTL_PROCESSOR_PRODUCT, 10466 sizeof(inq_ptr->product)); 10467 break; 10468 default: 10469 strncpy(inq_ptr->product, CTL_UNKNOWN_PRODUCT, 10470 sizeof(inq_ptr->product)); 10471 break; 10472 } 10473 } else { 10474 memset(inq_ptr->product, ' ', sizeof(inq_ptr->product)); 10475 strncpy(inq_ptr->product, val, 10476 min(sizeof(inq_ptr->product), strlen(val))); 10477 } 10478 10479 /* 10480 * XXX make this a macro somewhere so it automatically gets 10481 * incremented when we make changes. 10482 */ 10483 if (lun == NULL || (val = ctl_get_opt(&lun->be_lun->options, 10484 "revision")) == NULL) { 10485 strncpy(inq_ptr->revision, "0001", sizeof(inq_ptr->revision)); 10486 } else { 10487 memset(inq_ptr->revision, ' ', sizeof(inq_ptr->revision)); 10488 strncpy(inq_ptr->revision, val, 10489 min(sizeof(inq_ptr->revision), strlen(val))); 10490 } 10491 10492 /* 10493 * For parallel SCSI, we support double transition and single 10494 * transition clocking. We also support QAS (Quick Arbitration 10495 * and Selection) and Information Unit transfers on both the 10496 * control and array devices. 10497 */ 10498 if (port_type == CTL_PORT_SCSI) 10499 inq_ptr->spi3data = SID_SPI_CLOCK_DT_ST | SID_SPI_QAS | 10500 SID_SPI_IUS; 10501 10502 /* SAM-5 (no version claimed) */ 10503 scsi_ulto2b(0x00A0, inq_ptr->version1); 10504 /* SPC-4 (no version claimed) */ 10505 scsi_ulto2b(0x0460, inq_ptr->version2); 10506 if (port_type == CTL_PORT_FC) { 10507 /* FCP-2 ANSI INCITS.350:2003 */ 10508 scsi_ulto2b(0x0917, inq_ptr->version3); 10509 } else if (port_type == CTL_PORT_SCSI) { 10510 /* SPI-4 ANSI INCITS.362:200x */ 10511 scsi_ulto2b(0x0B56, inq_ptr->version3); 10512 } else if (port_type == CTL_PORT_ISCSI) { 10513 /* iSCSI (no version claimed) */ 10514 scsi_ulto2b(0x0960, inq_ptr->version3); 10515 } else if (port_type == CTL_PORT_SAS) { 10516 /* SAS (no version claimed) */ 10517 scsi_ulto2b(0x0BE0, inq_ptr->version3); 10518 } 10519 10520 if (lun == NULL) { 10521 /* SBC-4 (no version claimed) */ 10522 scsi_ulto2b(0x0600, inq_ptr->version4); 10523 } else { 10524 switch (lun->be_lun->lun_type) { 10525 case T_DIRECT: 10526 /* SBC-4 (no version claimed) */ 10527 scsi_ulto2b(0x0600, inq_ptr->version4); 10528 break; 10529 case T_PROCESSOR: 10530 default: 10531 break; 10532 } 10533 } 10534 10535 ctl_set_success(ctsio); 10536 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10537 ctsio->be_move_done = ctl_config_move_done; 10538 ctl_datamove((union ctl_io *)ctsio); 10539 return (CTL_RETVAL_COMPLETE); 10540} 10541 10542int 10543ctl_inquiry(struct ctl_scsiio *ctsio) 10544{ 10545 struct scsi_inquiry *cdb; 10546 int retval; 10547 10548 CTL_DEBUG_PRINT(("ctl_inquiry\n")); 10549 10550 cdb = (struct scsi_inquiry *)ctsio->cdb; 10551 if (cdb->byte2 & SI_EVPD) 10552 retval = ctl_inquiry_evpd(ctsio); 10553 else if (cdb->page_code == 0) 10554 retval = ctl_inquiry_std(ctsio); 10555 else { 10556 ctl_set_invalid_field(ctsio, 10557 /*sks_valid*/ 1, 10558 /*command*/ 1, 10559 /*field*/ 2, 10560 /*bit_valid*/ 0, 10561 /*bit*/ 0); 10562 ctl_done((union ctl_io *)ctsio); 10563 return (CTL_RETVAL_COMPLETE); 10564 } 10565 10566 return (retval); 10567} 10568 10569/* 10570 * For known CDB types, parse the LBA and length. 10571 */ 10572static int 10573ctl_get_lba_len(union ctl_io *io, uint64_t *lba, uint64_t *len) 10574{ 10575 if (io->io_hdr.io_type != CTL_IO_SCSI) 10576 return (1); 10577 10578 switch (io->scsiio.cdb[0]) { 10579 case COMPARE_AND_WRITE: { 10580 struct scsi_compare_and_write *cdb; 10581 10582 cdb = (struct scsi_compare_and_write *)io->scsiio.cdb; 10583 10584 *lba = scsi_8btou64(cdb->addr); 10585 *len = cdb->length; 10586 break; 10587 } 10588 case READ_6: 10589 case WRITE_6: { 10590 struct scsi_rw_6 *cdb; 10591 10592 cdb = (struct scsi_rw_6 *)io->scsiio.cdb; 10593 10594 *lba = scsi_3btoul(cdb->addr); 10595 /* only 5 bits are valid in the most significant address byte */ 10596 *lba &= 0x1fffff; 10597 *len = cdb->length; 10598 break; 10599 } 10600 case READ_10: 10601 case WRITE_10: { 10602 struct scsi_rw_10 *cdb; 10603 10604 cdb = (struct scsi_rw_10 *)io->scsiio.cdb; 10605 10606 *lba = scsi_4btoul(cdb->addr); 10607 *len = scsi_2btoul(cdb->length); 10608 break; 10609 } 10610 case WRITE_VERIFY_10: { 10611 struct scsi_write_verify_10 *cdb; 10612 10613 cdb = (struct scsi_write_verify_10 *)io->scsiio.cdb; 10614 10615 *lba = scsi_4btoul(cdb->addr); 10616 *len = scsi_2btoul(cdb->length); 10617 break; 10618 } 10619 case READ_12: 10620 case WRITE_12: { 10621 struct scsi_rw_12 *cdb; 10622 10623 cdb = (struct scsi_rw_12 *)io->scsiio.cdb; 10624 10625 *lba = scsi_4btoul(cdb->addr); 10626 *len = scsi_4btoul(cdb->length); 10627 break; 10628 } 10629 case WRITE_VERIFY_12: { 10630 struct scsi_write_verify_12 *cdb; 10631 10632 cdb = (struct scsi_write_verify_12 *)io->scsiio.cdb; 10633 10634 *lba = scsi_4btoul(cdb->addr); 10635 *len = scsi_4btoul(cdb->length); 10636 break; 10637 } 10638 case READ_16: 10639 case WRITE_16: { 10640 struct scsi_rw_16 *cdb; 10641 10642 cdb = (struct scsi_rw_16 *)io->scsiio.cdb; 10643 10644 *lba = scsi_8btou64(cdb->addr); 10645 *len = scsi_4btoul(cdb->length); 10646 break; 10647 } 10648 case WRITE_ATOMIC_16: { 10649 struct scsi_write_atomic_16 *cdb; 10650 10651 cdb = (struct scsi_write_atomic_16 *)io->scsiio.cdb; 10652 10653 *lba = scsi_8btou64(cdb->addr); 10654 *len = scsi_2btoul(cdb->length); 10655 break; 10656 } 10657 case WRITE_VERIFY_16: { 10658 struct scsi_write_verify_16 *cdb; 10659 10660 cdb = (struct scsi_write_verify_16 *)io->scsiio.cdb; 10661 10662 *lba = scsi_8btou64(cdb->addr); 10663 *len = scsi_4btoul(cdb->length); 10664 break; 10665 } 10666 case WRITE_SAME_10: { 10667 struct scsi_write_same_10 *cdb; 10668 10669 cdb = (struct scsi_write_same_10 *)io->scsiio.cdb; 10670 10671 *lba = scsi_4btoul(cdb->addr); 10672 *len = scsi_2btoul(cdb->length); 10673 break; 10674 } 10675 case WRITE_SAME_16: { 10676 struct scsi_write_same_16 *cdb; 10677 10678 cdb = (struct scsi_write_same_16 *)io->scsiio.cdb; 10679 10680 *lba = scsi_8btou64(cdb->addr); 10681 *len = scsi_4btoul(cdb->length); 10682 break; 10683 } 10684 case VERIFY_10: { 10685 struct scsi_verify_10 *cdb; 10686 10687 cdb = (struct scsi_verify_10 *)io->scsiio.cdb; 10688 10689 *lba = scsi_4btoul(cdb->addr); 10690 *len = scsi_2btoul(cdb->length); 10691 break; 10692 } 10693 case VERIFY_12: { 10694 struct scsi_verify_12 *cdb; 10695 10696 cdb = (struct scsi_verify_12 *)io->scsiio.cdb; 10697 10698 *lba = scsi_4btoul(cdb->addr); 10699 *len = scsi_4btoul(cdb->length); 10700 break; 10701 } 10702 case VERIFY_16: { 10703 struct scsi_verify_16 *cdb; 10704 10705 cdb = (struct scsi_verify_16 *)io->scsiio.cdb; 10706 10707 *lba = scsi_8btou64(cdb->addr); 10708 *len = scsi_4btoul(cdb->length); 10709 break; 10710 } 10711 case UNMAP: { 10712 *lba = 0; 10713 *len = UINT64_MAX; 10714 break; 10715 } 10716 case SERVICE_ACTION_IN: { /* GET LBA STATUS */ 10717 struct scsi_get_lba_status *cdb; 10718 10719 cdb = (struct scsi_get_lba_status *)io->scsiio.cdb; 10720 *lba = scsi_8btou64(cdb->addr); 10721 *len = UINT32_MAX; 10722 break; 10723 } 10724 default: 10725 return (1); 10726 break; /* NOTREACHED */ 10727 } 10728 10729 return (0); 10730} 10731 10732static ctl_action 10733ctl_extent_check_lba(uint64_t lba1, uint64_t len1, uint64_t lba2, uint64_t len2, 10734 bool seq) 10735{ 10736 uint64_t endlba1, endlba2; 10737 10738 endlba1 = lba1 + len1 - (seq ? 0 : 1); 10739 endlba2 = lba2 + len2 - 1; 10740 10741 if ((endlba1 < lba2) || (endlba2 < lba1)) 10742 return (CTL_ACTION_PASS); 10743 else 10744 return (CTL_ACTION_BLOCK); 10745} 10746 10747static int 10748ctl_extent_check_unmap(union ctl_io *io, uint64_t lba2, uint64_t len2) 10749{ 10750 struct ctl_ptr_len_flags *ptrlen; 10751 struct scsi_unmap_desc *buf, *end, *range; 10752 uint64_t lba; 10753 uint32_t len; 10754 10755 /* If not UNMAP -- go other way. */ 10756 if (io->io_hdr.io_type != CTL_IO_SCSI || 10757 io->scsiio.cdb[0] != UNMAP) 10758 return (CTL_ACTION_ERROR); 10759 10760 /* If UNMAP without data -- block and wait for data. */ 10761 ptrlen = (struct ctl_ptr_len_flags *) 10762 &io->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 10763 if ((io->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0 || 10764 ptrlen->ptr == NULL) 10765 return (CTL_ACTION_BLOCK); 10766 10767 /* UNMAP with data -- check for collision. */ 10768 buf = (struct scsi_unmap_desc *)ptrlen->ptr; 10769 end = buf + ptrlen->len / sizeof(*buf); 10770 for (range = buf; range < end; range++) { 10771 lba = scsi_8btou64(range->lba); 10772 len = scsi_4btoul(range->length); 10773 if ((lba < lba2 + len2) && (lba + len > lba2)) 10774 return (CTL_ACTION_BLOCK); 10775 } 10776 return (CTL_ACTION_PASS); 10777} 10778 10779static ctl_action 10780ctl_extent_check(union ctl_io *io1, union ctl_io *io2, bool seq) 10781{ 10782 uint64_t lba1, lba2; 10783 uint64_t len1, len2; 10784 int retval; 10785 10786 if (ctl_get_lba_len(io2, &lba2, &len2) != 0) 10787 return (CTL_ACTION_ERROR); 10788 10789 retval = ctl_extent_check_unmap(io1, lba2, len2); 10790 if (retval != CTL_ACTION_ERROR) 10791 return (retval); 10792 10793 if (ctl_get_lba_len(io1, &lba1, &len1) != 0) 10794 return (CTL_ACTION_ERROR); 10795 10796 if (io1->io_hdr.flags & CTL_FLAG_SERSEQ_DONE) 10797 seq = FALSE; 10798 return (ctl_extent_check_lba(lba1, len1, lba2, len2, seq)); 10799} 10800 10801static ctl_action 10802ctl_extent_check_seq(union ctl_io *io1, union ctl_io *io2) 10803{ 10804 uint64_t lba1, lba2; 10805 uint64_t len1, len2; 10806 10807 if (io1->io_hdr.flags & CTL_FLAG_SERSEQ_DONE) 10808 return (CTL_ACTION_PASS); 10809 if (ctl_get_lba_len(io1, &lba1, &len1) != 0) 10810 return (CTL_ACTION_ERROR); 10811 if (ctl_get_lba_len(io2, &lba2, &len2) != 0) 10812 return (CTL_ACTION_ERROR); 10813 10814 if (lba1 + len1 == lba2) 10815 return (CTL_ACTION_BLOCK); 10816 return (CTL_ACTION_PASS); 10817} 10818 10819static ctl_action 10820ctl_check_for_blockage(struct ctl_lun *lun, union ctl_io *pending_io, 10821 union ctl_io *ooa_io) 10822{ 10823 const struct ctl_cmd_entry *pending_entry, *ooa_entry; 10824 ctl_serialize_action *serialize_row; 10825 10826 /* 10827 * The initiator attempted multiple untagged commands at the same 10828 * time. Can't do that. 10829 */ 10830 if ((pending_io->scsiio.tag_type == CTL_TAG_UNTAGGED) 10831 && (ooa_io->scsiio.tag_type == CTL_TAG_UNTAGGED) 10832 && ((pending_io->io_hdr.nexus.targ_port == 10833 ooa_io->io_hdr.nexus.targ_port) 10834 && (pending_io->io_hdr.nexus.initid == 10835 ooa_io->io_hdr.nexus.initid)) 10836 && ((ooa_io->io_hdr.flags & (CTL_FLAG_ABORT | 10837 CTL_FLAG_STATUS_SENT)) == 0)) 10838 return (CTL_ACTION_OVERLAP); 10839 10840 /* 10841 * The initiator attempted to send multiple tagged commands with 10842 * the same ID. (It's fine if different initiators have the same 10843 * tag ID.) 10844 * 10845 * Even if all of those conditions are true, we don't kill the I/O 10846 * if the command ahead of us has been aborted. We won't end up 10847 * sending it to the FETD, and it's perfectly legal to resend a 10848 * command with the same tag number as long as the previous 10849 * instance of this tag number has been aborted somehow. 10850 */ 10851 if ((pending_io->scsiio.tag_type != CTL_TAG_UNTAGGED) 10852 && (ooa_io->scsiio.tag_type != CTL_TAG_UNTAGGED) 10853 && (pending_io->scsiio.tag_num == ooa_io->scsiio.tag_num) 10854 && ((pending_io->io_hdr.nexus.targ_port == 10855 ooa_io->io_hdr.nexus.targ_port) 10856 && (pending_io->io_hdr.nexus.initid == 10857 ooa_io->io_hdr.nexus.initid)) 10858 && ((ooa_io->io_hdr.flags & (CTL_FLAG_ABORT | 10859 CTL_FLAG_STATUS_SENT)) == 0)) 10860 return (CTL_ACTION_OVERLAP_TAG); 10861 10862 /* 10863 * If we get a head of queue tag, SAM-3 says that we should 10864 * immediately execute it. 10865 * 10866 * What happens if this command would normally block for some other 10867 * reason? e.g. a request sense with a head of queue tag 10868 * immediately after a write. Normally that would block, but this 10869 * will result in its getting executed immediately... 10870 * 10871 * We currently return "pass" instead of "skip", so we'll end up 10872 * going through the rest of the queue to check for overlapped tags. 10873 * 10874 * XXX KDM check for other types of blockage first?? 10875 */ 10876 if (pending_io->scsiio.tag_type == CTL_TAG_HEAD_OF_QUEUE) 10877 return (CTL_ACTION_PASS); 10878 10879 /* 10880 * Ordered tags have to block until all items ahead of them 10881 * have completed. If we get called with an ordered tag, we always 10882 * block, if something else is ahead of us in the queue. 10883 */ 10884 if (pending_io->scsiio.tag_type == CTL_TAG_ORDERED) 10885 return (CTL_ACTION_BLOCK); 10886 10887 /* 10888 * Simple tags get blocked until all head of queue and ordered tags 10889 * ahead of them have completed. I'm lumping untagged commands in 10890 * with simple tags here. XXX KDM is that the right thing to do? 10891 */ 10892 if (((pending_io->scsiio.tag_type == CTL_TAG_UNTAGGED) 10893 || (pending_io->scsiio.tag_type == CTL_TAG_SIMPLE)) 10894 && ((ooa_io->scsiio.tag_type == CTL_TAG_HEAD_OF_QUEUE) 10895 || (ooa_io->scsiio.tag_type == CTL_TAG_ORDERED))) 10896 return (CTL_ACTION_BLOCK); 10897 10898 pending_entry = ctl_get_cmd_entry(&pending_io->scsiio, NULL); 10899 ooa_entry = ctl_get_cmd_entry(&ooa_io->scsiio, NULL); 10900 10901 serialize_row = ctl_serialize_table[ooa_entry->seridx]; 10902 10903 switch (serialize_row[pending_entry->seridx]) { 10904 case CTL_SER_BLOCK: 10905 return (CTL_ACTION_BLOCK); 10906 case CTL_SER_EXTENT: 10907 return (ctl_extent_check(ooa_io, pending_io, 10908 (lun->be_lun && lun->be_lun->serseq == CTL_LUN_SERSEQ_ON))); 10909 case CTL_SER_EXTENTOPT: 10910 if ((lun->mode_pages.control_page[CTL_PAGE_CURRENT].queue_flags 10911 & SCP_QUEUE_ALG_MASK) != SCP_QUEUE_ALG_UNRESTRICTED) 10912 return (ctl_extent_check(ooa_io, pending_io, 10913 (lun->be_lun && 10914 lun->be_lun->serseq == CTL_LUN_SERSEQ_ON))); 10915 return (CTL_ACTION_PASS); 10916 case CTL_SER_EXTENTSEQ: 10917 if (lun->be_lun && lun->be_lun->serseq != CTL_LUN_SERSEQ_OFF) 10918 return (ctl_extent_check_seq(ooa_io, pending_io)); 10919 return (CTL_ACTION_PASS); 10920 case CTL_SER_PASS: 10921 return (CTL_ACTION_PASS); 10922 case CTL_SER_BLOCKOPT: 10923 if ((lun->mode_pages.control_page[CTL_PAGE_CURRENT].queue_flags 10924 & SCP_QUEUE_ALG_MASK) != SCP_QUEUE_ALG_UNRESTRICTED) 10925 return (CTL_ACTION_BLOCK); 10926 return (CTL_ACTION_PASS); 10927 case CTL_SER_SKIP: 10928 return (CTL_ACTION_SKIP); 10929 default: 10930 panic("invalid serialization value %d", 10931 serialize_row[pending_entry->seridx]); 10932 } 10933 10934 return (CTL_ACTION_ERROR); 10935} 10936 10937/* 10938 * Check for blockage or overlaps against the OOA (Order Of Arrival) queue. 10939 * Assumptions: 10940 * - pending_io is generally either incoming, or on the blocked queue 10941 * - starting I/O is the I/O we want to start the check with. 10942 */ 10943static ctl_action 10944ctl_check_ooa(struct ctl_lun *lun, union ctl_io *pending_io, 10945 union ctl_io *starting_io) 10946{ 10947 union ctl_io *ooa_io; 10948 ctl_action action; 10949 10950 mtx_assert(&lun->lun_lock, MA_OWNED); 10951 10952 /* 10953 * Run back along the OOA queue, starting with the current 10954 * blocked I/O and going through every I/O before it on the 10955 * queue. If starting_io is NULL, we'll just end up returning 10956 * CTL_ACTION_PASS. 10957 */ 10958 for (ooa_io = starting_io; ooa_io != NULL; 10959 ooa_io = (union ctl_io *)TAILQ_PREV(&ooa_io->io_hdr, ctl_ooaq, 10960 ooa_links)){ 10961 10962 /* 10963 * This routine just checks to see whether 10964 * cur_blocked is blocked by ooa_io, which is ahead 10965 * of it in the queue. It doesn't queue/dequeue 10966 * cur_blocked. 10967 */ 10968 action = ctl_check_for_blockage(lun, pending_io, ooa_io); 10969 switch (action) { 10970 case CTL_ACTION_BLOCK: 10971 case CTL_ACTION_OVERLAP: 10972 case CTL_ACTION_OVERLAP_TAG: 10973 case CTL_ACTION_SKIP: 10974 case CTL_ACTION_ERROR: 10975 return (action); 10976 break; /* NOTREACHED */ 10977 case CTL_ACTION_PASS: 10978 break; 10979 default: 10980 panic("invalid action %d", action); 10981 break; /* NOTREACHED */ 10982 } 10983 } 10984 10985 return (CTL_ACTION_PASS); 10986} 10987 10988/* 10989 * Assumptions: 10990 * - An I/O has just completed, and has been removed from the per-LUN OOA 10991 * queue, so some items on the blocked queue may now be unblocked. 10992 */ 10993static int 10994ctl_check_blocked(struct ctl_lun *lun) 10995{ 10996 struct ctl_softc *softc = lun->ctl_softc; 10997 union ctl_io *cur_blocked, *next_blocked; 10998 10999 mtx_assert(&lun->lun_lock, MA_OWNED); 11000 11001 /* 11002 * Run forward from the head of the blocked queue, checking each 11003 * entry against the I/Os prior to it on the OOA queue to see if 11004 * there is still any blockage. 11005 * 11006 * We cannot use the TAILQ_FOREACH() macro, because it can't deal 11007 * with our removing a variable on it while it is traversing the 11008 * list. 11009 */ 11010 for (cur_blocked = (union ctl_io *)TAILQ_FIRST(&lun->blocked_queue); 11011 cur_blocked != NULL; cur_blocked = next_blocked) { 11012 union ctl_io *prev_ooa; 11013 ctl_action action; 11014 11015 next_blocked = (union ctl_io *)TAILQ_NEXT(&cur_blocked->io_hdr, 11016 blocked_links); 11017 11018 prev_ooa = (union ctl_io *)TAILQ_PREV(&cur_blocked->io_hdr, 11019 ctl_ooaq, ooa_links); 11020 11021 /* 11022 * If cur_blocked happens to be the first item in the OOA 11023 * queue now, prev_ooa will be NULL, and the action 11024 * returned will just be CTL_ACTION_PASS. 11025 */ 11026 action = ctl_check_ooa(lun, cur_blocked, prev_ooa); 11027 11028 switch (action) { 11029 case CTL_ACTION_BLOCK: 11030 /* Nothing to do here, still blocked */ 11031 break; 11032 case CTL_ACTION_OVERLAP: 11033 case CTL_ACTION_OVERLAP_TAG: 11034 /* 11035 * This shouldn't happen! In theory we've already 11036 * checked this command for overlap... 11037 */ 11038 break; 11039 case CTL_ACTION_PASS: 11040 case CTL_ACTION_SKIP: { 11041 const struct ctl_cmd_entry *entry; 11042 11043 /* 11044 * The skip case shouldn't happen, this transaction 11045 * should have never made it onto the blocked queue. 11046 */ 11047 /* 11048 * This I/O is no longer blocked, we can remove it 11049 * from the blocked queue. Since this is a TAILQ 11050 * (doubly linked list), we can do O(1) removals 11051 * from any place on the list. 11052 */ 11053 TAILQ_REMOVE(&lun->blocked_queue, &cur_blocked->io_hdr, 11054 blocked_links); 11055 cur_blocked->io_hdr.flags &= ~CTL_FLAG_BLOCKED; 11056 11057 if ((softc->ha_mode != CTL_HA_MODE_XFER) && 11058 (cur_blocked->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)){ 11059 /* 11060 * Need to send IO back to original side to 11061 * run 11062 */ 11063 union ctl_ha_msg msg_info; 11064 11065 cur_blocked->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 11066 msg_info.hdr.original_sc = 11067 cur_blocked->io_hdr.original_sc; 11068 msg_info.hdr.serializing_sc = cur_blocked; 11069 msg_info.hdr.msg_type = CTL_MSG_R2R; 11070 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 11071 sizeof(msg_info.hdr), M_NOWAIT); 11072 break; 11073 } 11074 entry = ctl_get_cmd_entry(&cur_blocked->scsiio, NULL); 11075 11076 /* 11077 * Check this I/O for LUN state changes that may 11078 * have happened while this command was blocked. 11079 * The LUN state may have been changed by a command 11080 * ahead of us in the queue, so we need to re-check 11081 * for any states that can be caused by SCSI 11082 * commands. 11083 */ 11084 if (ctl_scsiio_lun_check(lun, entry, 11085 &cur_blocked->scsiio) == 0) { 11086 cur_blocked->io_hdr.flags |= 11087 CTL_FLAG_IS_WAS_ON_RTR; 11088 ctl_enqueue_rtr(cur_blocked); 11089 } else 11090 ctl_done(cur_blocked); 11091 break; 11092 } 11093 default: 11094 /* 11095 * This probably shouldn't happen -- we shouldn't 11096 * get CTL_ACTION_ERROR, or anything else. 11097 */ 11098 break; 11099 } 11100 } 11101 11102 return (CTL_RETVAL_COMPLETE); 11103} 11104 11105/* 11106 * This routine (with one exception) checks LUN flags that can be set by 11107 * commands ahead of us in the OOA queue. These flags have to be checked 11108 * when a command initially comes in, and when we pull a command off the 11109 * blocked queue and are preparing to execute it. The reason we have to 11110 * check these flags for commands on the blocked queue is that the LUN 11111 * state may have been changed by a command ahead of us while we're on the 11112 * blocked queue. 11113 * 11114 * Ordering is somewhat important with these checks, so please pay 11115 * careful attention to the placement of any new checks. 11116 */ 11117static int 11118ctl_scsiio_lun_check(struct ctl_lun *lun, 11119 const struct ctl_cmd_entry *entry, struct ctl_scsiio *ctsio) 11120{ 11121 struct ctl_softc *softc = lun->ctl_softc; 11122 int retval; 11123 uint32_t residx; 11124 11125 retval = 0; 11126 11127 mtx_assert(&lun->lun_lock, MA_OWNED); 11128 11129 /* 11130 * If this shelf is a secondary shelf controller, we may have to 11131 * reject some commands disallowed by HA mode and link state. 11132 */ 11133 if ((lun->flags & CTL_LUN_PRIMARY_SC) == 0) { 11134 if (softc->ha_link == CTL_HA_LINK_OFFLINE && 11135 (entry->flags & CTL_CMD_FLAG_OK_ON_UNAVAIL) == 0) { 11136 ctl_set_lun_unavail(ctsio); 11137 retval = 1; 11138 goto bailout; 11139 } 11140 if ((lun->flags & CTL_LUN_PEER_SC_PRIMARY) == 0 && 11141 (entry->flags & CTL_CMD_FLAG_OK_ON_UNAVAIL) == 0) { 11142 ctl_set_lun_transit(ctsio); 11143 retval = 1; 11144 goto bailout; 11145 } 11146 if (softc->ha_mode == CTL_HA_MODE_ACT_STBY && 11147 (entry->flags & CTL_CMD_FLAG_OK_ON_STANDBY) == 0) { 11148 ctl_set_lun_standby(ctsio); 11149 retval = 1; 11150 goto bailout; 11151 } 11152 11153 /* The rest of checks are only done on executing side */ 11154 if (softc->ha_mode == CTL_HA_MODE_XFER) 11155 goto bailout; 11156 } 11157 11158 if (entry->pattern & CTL_LUN_PAT_WRITE) { 11159 if (lun->be_lun && 11160 lun->be_lun->flags & CTL_LUN_FLAG_READONLY) { 11161 ctl_set_hw_write_protected(ctsio); 11162 retval = 1; 11163 goto bailout; 11164 } 11165 if ((lun->mode_pages.control_page[CTL_PAGE_CURRENT] 11166 .eca_and_aen & SCP_SWP) != 0) { 11167 ctl_set_sense(ctsio, /*current_error*/ 1, 11168 /*sense_key*/ SSD_KEY_DATA_PROTECT, 11169 /*asc*/ 0x27, /*ascq*/ 0x02, SSD_ELEM_NONE); 11170 retval = 1; 11171 goto bailout; 11172 } 11173 } 11174 11175 /* 11176 * Check for a reservation conflict. If this command isn't allowed 11177 * even on reserved LUNs, and if this initiator isn't the one who 11178 * reserved us, reject the command with a reservation conflict. 11179 */ 11180 residx = ctl_get_initindex(&ctsio->io_hdr.nexus); 11181 if ((lun->flags & CTL_LUN_RESERVED) 11182 && ((entry->flags & CTL_CMD_FLAG_ALLOW_ON_RESV) == 0)) { 11183 if (lun->res_idx != residx) { 11184 ctl_set_reservation_conflict(ctsio); 11185 retval = 1; 11186 goto bailout; 11187 } 11188 } 11189 11190 if ((lun->flags & CTL_LUN_PR_RESERVED) == 0 || 11191 (entry->flags & CTL_CMD_FLAG_ALLOW_ON_PR_RESV)) { 11192 /* No reservation or command is allowed. */; 11193 } else if ((entry->flags & CTL_CMD_FLAG_ALLOW_ON_PR_WRESV) && 11194 (lun->res_type == SPR_TYPE_WR_EX || 11195 lun->res_type == SPR_TYPE_WR_EX_RO || 11196 lun->res_type == SPR_TYPE_WR_EX_AR)) { 11197 /* The command is allowed for Write Exclusive resv. */; 11198 } else { 11199 /* 11200 * if we aren't registered or it's a res holder type 11201 * reservation and this isn't the res holder then set a 11202 * conflict. 11203 */ 11204 if (ctl_get_prkey(lun, residx) == 0 11205 || (residx != lun->pr_res_idx && lun->res_type < 4)) { 11206 ctl_set_reservation_conflict(ctsio); 11207 retval = 1; 11208 goto bailout; 11209 } 11210 } 11211 11212 if ((lun->flags & CTL_LUN_OFFLINE) 11213 && ((entry->flags & CTL_CMD_FLAG_OK_ON_STANDBY) == 0)) { 11214 ctl_set_lun_not_ready(ctsio); 11215 retval = 1; 11216 goto bailout; 11217 } 11218 11219 if ((lun->flags & CTL_LUN_STOPPED) 11220 && ((entry->flags & CTL_CMD_FLAG_OK_ON_STOPPED) == 0)) { 11221 /* "Logical unit not ready, initializing cmd. required" */ 11222 ctl_set_lun_stopped(ctsio); 11223 retval = 1; 11224 goto bailout; 11225 } 11226 11227 if ((lun->flags & CTL_LUN_INOPERABLE) 11228 && ((entry->flags & CTL_CMD_FLAG_OK_ON_INOPERABLE) == 0)) { 11229 /* "Medium format corrupted" */ 11230 ctl_set_medium_format_corrupted(ctsio); 11231 retval = 1; 11232 goto bailout; 11233 } 11234 11235bailout: 11236 return (retval); 11237} 11238 11239static void 11240ctl_failover_io(union ctl_io *io, int have_lock) 11241{ 11242 ctl_set_busy(&io->scsiio); 11243 ctl_done(io); 11244} 11245 11246static void 11247ctl_failover_lun(struct ctl_lun *lun) 11248{ 11249 struct ctl_softc *softc = lun->ctl_softc; 11250 struct ctl_io_hdr *io, *next_io; 11251 11252 CTL_DEBUG_PRINT(("FAILOVER for lun %ju\n", lun->lun)); 11253 if (softc->ha_mode == CTL_HA_MODE_XFER) { 11254 TAILQ_FOREACH_SAFE(io, &lun->ooa_queue, ooa_links, next_io) { 11255 /* We are master */ 11256 if (io->flags & CTL_FLAG_FROM_OTHER_SC) { 11257 if (io->flags & CTL_FLAG_IO_ACTIVE) { 11258 io->flags |= CTL_FLAG_ABORT; 11259 io->flags |= CTL_FLAG_FAILOVER; 11260 } else { /* This can be only due to DATAMOVE */ 11261 io->msg_type = CTL_MSG_DATAMOVE_DONE; 11262 io->flags &= ~CTL_FLAG_DMA_INPROG; 11263 io->flags |= CTL_FLAG_IO_ACTIVE; 11264 io->port_status = 31340; 11265 ctl_enqueue_isc((union ctl_io *)io); 11266 } 11267 } 11268 /* We are slave */ 11269 if (io->flags & CTL_FLAG_SENT_2OTHER_SC) { 11270 io->flags &= ~CTL_FLAG_SENT_2OTHER_SC; 11271 if (io->flags & CTL_FLAG_IO_ACTIVE) { 11272 io->flags |= CTL_FLAG_FAILOVER; 11273 } else { 11274 ctl_set_busy(&((union ctl_io *)io)-> 11275 scsiio); 11276 ctl_done((union ctl_io *)io); 11277 } 11278 } 11279 } 11280 } else { /* SERIALIZE modes */ 11281 TAILQ_FOREACH_SAFE(io, &lun->blocked_queue, blocked_links, 11282 next_io) { 11283 /* We are master */ 11284 if (io->flags & CTL_FLAG_FROM_OTHER_SC) { 11285 TAILQ_REMOVE(&lun->blocked_queue, io, 11286 blocked_links); 11287 io->flags &= ~CTL_FLAG_BLOCKED; 11288 TAILQ_REMOVE(&lun->ooa_queue, io, ooa_links); 11289 ctl_free_io((union ctl_io *)io); 11290 } 11291 } 11292 TAILQ_FOREACH_SAFE(io, &lun->ooa_queue, ooa_links, next_io) { 11293 /* We are master */ 11294 if (io->flags & CTL_FLAG_FROM_OTHER_SC) { 11295 TAILQ_REMOVE(&lun->ooa_queue, io, ooa_links); 11296 ctl_free_io((union ctl_io *)io); 11297 } 11298 /* We are slave */ 11299 if (io->flags & CTL_FLAG_SENT_2OTHER_SC) { 11300 io->flags &= ~CTL_FLAG_SENT_2OTHER_SC; 11301 if (!(io->flags & CTL_FLAG_IO_ACTIVE)) { 11302 ctl_set_busy(&((union ctl_io *)io)-> 11303 scsiio); 11304 ctl_done((union ctl_io *)io); 11305 } 11306 } 11307 } 11308 ctl_check_blocked(lun); 11309 } 11310} 11311 11312static int 11313ctl_scsiio_precheck(struct ctl_softc *softc, struct ctl_scsiio *ctsio) 11314{ 11315 struct ctl_lun *lun; 11316 const struct ctl_cmd_entry *entry; 11317 uint32_t initidx, targ_lun; 11318 int retval; 11319 11320 retval = 0; 11321 11322 lun = NULL; 11323 11324 targ_lun = ctsio->io_hdr.nexus.targ_mapped_lun; 11325 if ((targ_lun < CTL_MAX_LUNS) 11326 && ((lun = softc->ctl_luns[targ_lun]) != NULL)) { 11327 /* 11328 * If the LUN is invalid, pretend that it doesn't exist. 11329 * It will go away as soon as all pending I/O has been 11330 * completed. 11331 */ 11332 mtx_lock(&lun->lun_lock); 11333 if (lun->flags & CTL_LUN_DISABLED) { 11334 mtx_unlock(&lun->lun_lock); 11335 lun = NULL; 11336 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr = NULL; 11337 ctsio->io_hdr.ctl_private[CTL_PRIV_BACKEND_LUN].ptr = NULL; 11338 } else { 11339 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr = lun; 11340 ctsio->io_hdr.ctl_private[CTL_PRIV_BACKEND_LUN].ptr = 11341 lun->be_lun; 11342 11343 /* 11344 * Every I/O goes into the OOA queue for a 11345 * particular LUN, and stays there until completion. 11346 */ 11347#ifdef CTL_TIME_IO 11348 if (TAILQ_EMPTY(&lun->ooa_queue)) { 11349 lun->idle_time += getsbinuptime() - 11350 lun->last_busy; 11351 } 11352#endif 11353 TAILQ_INSERT_TAIL(&lun->ooa_queue, &ctsio->io_hdr, 11354 ooa_links); 11355 } 11356 } else { 11357 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr = NULL; 11358 ctsio->io_hdr.ctl_private[CTL_PRIV_BACKEND_LUN].ptr = NULL; 11359 } 11360 11361 /* Get command entry and return error if it is unsuppotyed. */ 11362 entry = ctl_validate_command(ctsio); 11363 if (entry == NULL) { 11364 if (lun) 11365 mtx_unlock(&lun->lun_lock); 11366 return (retval); 11367 } 11368 11369 ctsio->io_hdr.flags &= ~CTL_FLAG_DATA_MASK; 11370 ctsio->io_hdr.flags |= entry->flags & CTL_FLAG_DATA_MASK; 11371 11372 /* 11373 * Check to see whether we can send this command to LUNs that don't 11374 * exist. This should pretty much only be the case for inquiry 11375 * and request sense. Further checks, below, really require having 11376 * a LUN, so we can't really check the command anymore. Just put 11377 * it on the rtr queue. 11378 */ 11379 if (lun == NULL) { 11380 if (entry->flags & CTL_CMD_FLAG_OK_ON_NO_LUN) { 11381 ctsio->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 11382 ctl_enqueue_rtr((union ctl_io *)ctsio); 11383 return (retval); 11384 } 11385 11386 ctl_set_unsupported_lun(ctsio); 11387 ctl_done((union ctl_io *)ctsio); 11388 CTL_DEBUG_PRINT(("ctl_scsiio_precheck: bailing out due to invalid LUN\n")); 11389 return (retval); 11390 } else { 11391 /* 11392 * Make sure we support this particular command on this LUN. 11393 * e.g., we don't support writes to the control LUN. 11394 */ 11395 if (!ctl_cmd_applicable(lun->be_lun->lun_type, entry)) { 11396 mtx_unlock(&lun->lun_lock); 11397 ctl_set_invalid_opcode(ctsio); 11398 ctl_done((union ctl_io *)ctsio); 11399 return (retval); 11400 } 11401 } 11402 11403 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 11404 11405#ifdef CTL_WITH_CA 11406 /* 11407 * If we've got a request sense, it'll clear the contingent 11408 * allegiance condition. Otherwise, if we have a CA condition for 11409 * this initiator, clear it, because it sent down a command other 11410 * than request sense. 11411 */ 11412 if ((ctsio->cdb[0] != REQUEST_SENSE) 11413 && (ctl_is_set(lun->have_ca, initidx))) 11414 ctl_clear_mask(lun->have_ca, initidx); 11415#endif 11416 11417 /* 11418 * If the command has this flag set, it handles its own unit 11419 * attention reporting, we shouldn't do anything. Otherwise we 11420 * check for any pending unit attentions, and send them back to the 11421 * initiator. We only do this when a command initially comes in, 11422 * not when we pull it off the blocked queue. 11423 * 11424 * According to SAM-3, section 5.3.2, the order that things get 11425 * presented back to the host is basically unit attentions caused 11426 * by some sort of reset event, busy status, reservation conflicts 11427 * or task set full, and finally any other status. 11428 * 11429 * One issue here is that some of the unit attentions we report 11430 * don't fall into the "reset" category (e.g. "reported luns data 11431 * has changed"). So reporting it here, before the reservation 11432 * check, may be technically wrong. I guess the only thing to do 11433 * would be to check for and report the reset events here, and then 11434 * check for the other unit attention types after we check for a 11435 * reservation conflict. 11436 * 11437 * XXX KDM need to fix this 11438 */ 11439 if ((entry->flags & CTL_CMD_FLAG_NO_SENSE) == 0) { 11440 ctl_ua_type ua_type; 11441 11442 ua_type = ctl_build_ua(lun, initidx, &ctsio->sense_data, 11443 SSD_TYPE_NONE); 11444 if (ua_type != CTL_UA_NONE) { 11445 mtx_unlock(&lun->lun_lock); 11446 ctsio->scsi_status = SCSI_STATUS_CHECK_COND; 11447 ctsio->io_hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 11448 ctsio->sense_len = SSD_FULL_SIZE; 11449 ctl_done((union ctl_io *)ctsio); 11450 return (retval); 11451 } 11452 } 11453 11454 11455 if (ctl_scsiio_lun_check(lun, entry, ctsio) != 0) { 11456 mtx_unlock(&lun->lun_lock); 11457 ctl_done((union ctl_io *)ctsio); 11458 return (retval); 11459 } 11460 11461 /* 11462 * XXX CHD this is where we want to send IO to other side if 11463 * this LUN is secondary on this SC. We will need to make a copy 11464 * of the IO and flag the IO on this side as SENT_2OTHER and the flag 11465 * the copy we send as FROM_OTHER. 11466 * We also need to stuff the address of the original IO so we can 11467 * find it easily. Something similar will need be done on the other 11468 * side so when we are done we can find the copy. 11469 */ 11470 if ((lun->flags & CTL_LUN_PRIMARY_SC) == 0 && 11471 (lun->flags & CTL_LUN_PEER_SC_PRIMARY) != 0 && 11472 (entry->flags & CTL_CMD_FLAG_RUN_HERE) == 0) { 11473 union ctl_ha_msg msg_info; 11474 int isc_retval; 11475 11476 ctsio->io_hdr.flags |= CTL_FLAG_SENT_2OTHER_SC; 11477 ctsio->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 11478 mtx_unlock(&lun->lun_lock); 11479 11480 msg_info.hdr.msg_type = CTL_MSG_SERIALIZE; 11481 msg_info.hdr.original_sc = (union ctl_io *)ctsio; 11482 msg_info.hdr.serializing_sc = NULL; 11483 msg_info.hdr.nexus = ctsio->io_hdr.nexus; 11484 msg_info.scsi.tag_num = ctsio->tag_num; 11485 msg_info.scsi.tag_type = ctsio->tag_type; 11486 msg_info.scsi.cdb_len = ctsio->cdb_len; 11487 memcpy(msg_info.scsi.cdb, ctsio->cdb, CTL_MAX_CDBLEN); 11488 11489 if ((isc_retval = ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 11490 sizeof(msg_info.scsi) - sizeof(msg_info.scsi.sense_data), 11491 M_WAITOK)) > CTL_HA_STATUS_SUCCESS) { 11492 ctl_set_busy(ctsio); 11493 ctl_done((union ctl_io *)ctsio); 11494 return (retval); 11495 } 11496 return (retval); 11497 } 11498 11499 switch (ctl_check_ooa(lun, (union ctl_io *)ctsio, 11500 (union ctl_io *)TAILQ_PREV(&ctsio->io_hdr, 11501 ctl_ooaq, ooa_links))) { 11502 case CTL_ACTION_BLOCK: 11503 ctsio->io_hdr.flags |= CTL_FLAG_BLOCKED; 11504 TAILQ_INSERT_TAIL(&lun->blocked_queue, &ctsio->io_hdr, 11505 blocked_links); 11506 mtx_unlock(&lun->lun_lock); 11507 return (retval); 11508 case CTL_ACTION_PASS: 11509 case CTL_ACTION_SKIP: 11510 ctsio->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 11511 mtx_unlock(&lun->lun_lock); 11512 ctl_enqueue_rtr((union ctl_io *)ctsio); 11513 break; 11514 case CTL_ACTION_OVERLAP: 11515 mtx_unlock(&lun->lun_lock); 11516 ctl_set_overlapped_cmd(ctsio); 11517 ctl_done((union ctl_io *)ctsio); 11518 break; 11519 case CTL_ACTION_OVERLAP_TAG: 11520 mtx_unlock(&lun->lun_lock); 11521 ctl_set_overlapped_tag(ctsio, ctsio->tag_num & 0xff); 11522 ctl_done((union ctl_io *)ctsio); 11523 break; 11524 case CTL_ACTION_ERROR: 11525 default: 11526 mtx_unlock(&lun->lun_lock); 11527 ctl_set_internal_failure(ctsio, 11528 /*sks_valid*/ 0, 11529 /*retry_count*/ 0); 11530 ctl_done((union ctl_io *)ctsio); 11531 break; 11532 } 11533 return (retval); 11534} 11535 11536const struct ctl_cmd_entry * 11537ctl_get_cmd_entry(struct ctl_scsiio *ctsio, int *sa) 11538{ 11539 const struct ctl_cmd_entry *entry; 11540 int service_action; 11541 11542 entry = &ctl_cmd_table[ctsio->cdb[0]]; 11543 if (sa) 11544 *sa = ((entry->flags & CTL_CMD_FLAG_SA5) != 0); 11545 if (entry->flags & CTL_CMD_FLAG_SA5) { 11546 service_action = ctsio->cdb[1] & SERVICE_ACTION_MASK; 11547 entry = &((const struct ctl_cmd_entry *) 11548 entry->execute)[service_action]; 11549 } 11550 return (entry); 11551} 11552 11553const struct ctl_cmd_entry * 11554ctl_validate_command(struct ctl_scsiio *ctsio) 11555{ 11556 const struct ctl_cmd_entry *entry; 11557 int i, sa; 11558 uint8_t diff; 11559 11560 entry = ctl_get_cmd_entry(ctsio, &sa); 11561 if (entry->execute == NULL) { 11562 if (sa) 11563 ctl_set_invalid_field(ctsio, 11564 /*sks_valid*/ 1, 11565 /*command*/ 1, 11566 /*field*/ 1, 11567 /*bit_valid*/ 1, 11568 /*bit*/ 4); 11569 else 11570 ctl_set_invalid_opcode(ctsio); 11571 ctl_done((union ctl_io *)ctsio); 11572 return (NULL); 11573 } 11574 KASSERT(entry->length > 0, 11575 ("Not defined length for command 0x%02x/0x%02x", 11576 ctsio->cdb[0], ctsio->cdb[1])); 11577 for (i = 1; i < entry->length; i++) { 11578 diff = ctsio->cdb[i] & ~entry->usage[i - 1]; 11579 if (diff == 0) 11580 continue; 11581 ctl_set_invalid_field(ctsio, 11582 /*sks_valid*/ 1, 11583 /*command*/ 1, 11584 /*field*/ i, 11585 /*bit_valid*/ 1, 11586 /*bit*/ fls(diff) - 1); 11587 ctl_done((union ctl_io *)ctsio); 11588 return (NULL); 11589 } 11590 return (entry); 11591} 11592 11593static int 11594ctl_cmd_applicable(uint8_t lun_type, const struct ctl_cmd_entry *entry) 11595{ 11596 11597 switch (lun_type) { 11598 case T_PROCESSOR: 11599 if ((entry->flags & CTL_CMD_FLAG_OK_ON_PROC) == 0) 11600 return (0); 11601 break; 11602 case T_DIRECT: 11603 if ((entry->flags & CTL_CMD_FLAG_OK_ON_SLUN) == 0) 11604 return (0); 11605 break; 11606 default: 11607 return (0); 11608 } 11609 return (1); 11610} 11611 11612static int 11613ctl_scsiio(struct ctl_scsiio *ctsio) 11614{ 11615 int retval; 11616 const struct ctl_cmd_entry *entry; 11617 11618 retval = CTL_RETVAL_COMPLETE; 11619 11620 CTL_DEBUG_PRINT(("ctl_scsiio cdb[0]=%02X\n", ctsio->cdb[0])); 11621 11622 entry = ctl_get_cmd_entry(ctsio, NULL); 11623 11624 /* 11625 * If this I/O has been aborted, just send it straight to 11626 * ctl_done() without executing it. 11627 */ 11628 if (ctsio->io_hdr.flags & CTL_FLAG_ABORT) { 11629 ctl_done((union ctl_io *)ctsio); 11630 goto bailout; 11631 } 11632 11633 /* 11634 * All the checks should have been handled by ctl_scsiio_precheck(). 11635 * We should be clear now to just execute the I/O. 11636 */ 11637 retval = entry->execute(ctsio); 11638 11639bailout: 11640 return (retval); 11641} 11642 11643/* 11644 * Since we only implement one target right now, a bus reset simply resets 11645 * our single target. 11646 */ 11647static int 11648ctl_bus_reset(struct ctl_softc *softc, union ctl_io *io) 11649{ 11650 return(ctl_target_reset(softc, io, CTL_UA_BUS_RESET)); 11651} 11652 11653static int 11654ctl_target_reset(struct ctl_softc *softc, union ctl_io *io, 11655 ctl_ua_type ua_type) 11656{ 11657 struct ctl_port *port; 11658 struct ctl_lun *lun; 11659 int retval; 11660 11661 if (!(io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)) { 11662 union ctl_ha_msg msg_info; 11663 11664 msg_info.hdr.nexus = io->io_hdr.nexus; 11665 if (ua_type==CTL_UA_TARG_RESET) 11666 msg_info.task.task_action = CTL_TASK_TARGET_RESET; 11667 else 11668 msg_info.task.task_action = CTL_TASK_BUS_RESET; 11669 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 11670 msg_info.hdr.original_sc = NULL; 11671 msg_info.hdr.serializing_sc = NULL; 11672 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 11673 sizeof(msg_info.task), M_WAITOK); 11674 } 11675 retval = 0; 11676 11677 mtx_lock(&softc->ctl_lock); 11678 port = softc->ctl_ports[io->io_hdr.nexus.targ_port]; 11679 STAILQ_FOREACH(lun, &softc->lun_list, links) { 11680 if (port != NULL && 11681 ctl_lun_map_to_port(port, lun->lun) >= CTL_MAX_LUNS) 11682 continue; 11683 retval += ctl_do_lun_reset(lun, io, ua_type); 11684 } 11685 mtx_unlock(&softc->ctl_lock); 11686 io->taskio.task_status = CTL_TASK_FUNCTION_COMPLETE; 11687 return (retval); 11688} 11689 11690/* 11691 * The LUN should always be set. The I/O is optional, and is used to 11692 * distinguish between I/Os sent by this initiator, and by other 11693 * initiators. We set unit attention for initiators other than this one. 11694 * SAM-3 is vague on this point. It does say that a unit attention should 11695 * be established for other initiators when a LUN is reset (see section 11696 * 5.7.3), but it doesn't specifically say that the unit attention should 11697 * be established for this particular initiator when a LUN is reset. Here 11698 * is the relevant text, from SAM-3 rev 8: 11699 * 11700 * 5.7.2 When a SCSI initiator port aborts its own tasks 11701 * 11702 * When a SCSI initiator port causes its own task(s) to be aborted, no 11703 * notification that the task(s) have been aborted shall be returned to 11704 * the SCSI initiator port other than the completion response for the 11705 * command or task management function action that caused the task(s) to 11706 * be aborted and notification(s) associated with related effects of the 11707 * action (e.g., a reset unit attention condition). 11708 * 11709 * XXX KDM for now, we're setting unit attention for all initiators. 11710 */ 11711static int 11712ctl_do_lun_reset(struct ctl_lun *lun, union ctl_io *io, ctl_ua_type ua_type) 11713{ 11714 union ctl_io *xio; 11715#if 0 11716 uint32_t initidx; 11717#endif 11718#ifdef CTL_WITH_CA 11719 int i; 11720#endif 11721 11722 mtx_lock(&lun->lun_lock); 11723 /* 11724 * Run through the OOA queue and abort each I/O. 11725 */ 11726 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 11727 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 11728 xio->io_hdr.flags |= CTL_FLAG_ABORT | CTL_FLAG_ABORT_STATUS; 11729 } 11730 11731 /* 11732 * This version sets unit attention for every 11733 */ 11734#if 0 11735 initidx = ctl_get_initindex(&io->io_hdr.nexus); 11736 ctl_est_ua_all(lun, initidx, ua_type); 11737#else 11738 ctl_est_ua_all(lun, -1, ua_type); 11739#endif 11740 11741 /* 11742 * A reset (any kind, really) clears reservations established with 11743 * RESERVE/RELEASE. It does not clear reservations established 11744 * with PERSISTENT RESERVE OUT, but we don't support that at the 11745 * moment anyway. See SPC-2, section 5.6. SPC-3 doesn't address 11746 * reservations made with the RESERVE/RELEASE commands, because 11747 * those commands are obsolete in SPC-3. 11748 */ 11749 lun->flags &= ~CTL_LUN_RESERVED; 11750 11751#ifdef CTL_WITH_CA 11752 for (i = 0; i < CTL_MAX_INITIATORS; i++) 11753 ctl_clear_mask(lun->have_ca, i); 11754#endif 11755 mtx_unlock(&lun->lun_lock); 11756 11757 return (0); 11758} 11759 11760static int 11761ctl_lun_reset(struct ctl_softc *softc, union ctl_io *io) 11762{ 11763 struct ctl_lun *lun; 11764 uint32_t targ_lun; 11765 int retval; 11766 11767 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 11768 mtx_lock(&softc->ctl_lock); 11769 if ((targ_lun >= CTL_MAX_LUNS) || 11770 (lun = softc->ctl_luns[targ_lun]) == NULL) { 11771 mtx_unlock(&softc->ctl_lock); 11772 io->taskio.task_status = CTL_TASK_LUN_DOES_NOT_EXIST; 11773 return (1); 11774 } 11775 retval = ctl_do_lun_reset(lun, io, CTL_UA_LUN_RESET); 11776 mtx_unlock(&softc->ctl_lock); 11777 io->taskio.task_status = CTL_TASK_FUNCTION_COMPLETE; 11778 11779 if ((io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) == 0) { 11780 union ctl_ha_msg msg_info; 11781 11782 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 11783 msg_info.hdr.nexus = io->io_hdr.nexus; 11784 msg_info.task.task_action = CTL_TASK_LUN_RESET; 11785 msg_info.hdr.original_sc = NULL; 11786 msg_info.hdr.serializing_sc = NULL; 11787 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 11788 sizeof(msg_info.task), M_WAITOK); 11789 } 11790 return (retval); 11791} 11792 11793static void 11794ctl_abort_tasks_lun(struct ctl_lun *lun, uint32_t targ_port, uint32_t init_id, 11795 int other_sc) 11796{ 11797 union ctl_io *xio; 11798 11799 mtx_assert(&lun->lun_lock, MA_OWNED); 11800 11801 /* 11802 * Run through the OOA queue and attempt to find the given I/O. 11803 * The target port, initiator ID, tag type and tag number have to 11804 * match the values that we got from the initiator. If we have an 11805 * untagged command to abort, simply abort the first untagged command 11806 * we come to. We only allow one untagged command at a time of course. 11807 */ 11808 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 11809 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 11810 11811 if ((targ_port == UINT32_MAX || 11812 targ_port == xio->io_hdr.nexus.targ_port) && 11813 (init_id == UINT32_MAX || 11814 init_id == xio->io_hdr.nexus.initid)) { 11815 if (targ_port != xio->io_hdr.nexus.targ_port || 11816 init_id != xio->io_hdr.nexus.initid) 11817 xio->io_hdr.flags |= CTL_FLAG_ABORT_STATUS; 11818 xio->io_hdr.flags |= CTL_FLAG_ABORT; 11819 if (!other_sc && !(lun->flags & CTL_LUN_PRIMARY_SC)) { 11820 union ctl_ha_msg msg_info; 11821 11822 msg_info.hdr.nexus = xio->io_hdr.nexus; 11823 msg_info.task.task_action = CTL_TASK_ABORT_TASK; 11824 msg_info.task.tag_num = xio->scsiio.tag_num; 11825 msg_info.task.tag_type = xio->scsiio.tag_type; 11826 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 11827 msg_info.hdr.original_sc = NULL; 11828 msg_info.hdr.serializing_sc = NULL; 11829 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 11830 sizeof(msg_info.task), M_NOWAIT); 11831 } 11832 } 11833 } 11834} 11835 11836static int 11837ctl_abort_task_set(union ctl_io *io) 11838{ 11839 struct ctl_softc *softc = control_softc; 11840 struct ctl_lun *lun; 11841 uint32_t targ_lun; 11842 11843 /* 11844 * Look up the LUN. 11845 */ 11846 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 11847 mtx_lock(&softc->ctl_lock); 11848 if ((targ_lun >= CTL_MAX_LUNS) || 11849 (lun = softc->ctl_luns[targ_lun]) == NULL) { 11850 mtx_unlock(&softc->ctl_lock); 11851 io->taskio.task_status = CTL_TASK_LUN_DOES_NOT_EXIST; 11852 return (1); 11853 } 11854 11855 mtx_lock(&lun->lun_lock); 11856 mtx_unlock(&softc->ctl_lock); 11857 if (io->taskio.task_action == CTL_TASK_ABORT_TASK_SET) { 11858 ctl_abort_tasks_lun(lun, io->io_hdr.nexus.targ_port, 11859 io->io_hdr.nexus.initid, 11860 (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) != 0); 11861 } else { /* CTL_TASK_CLEAR_TASK_SET */ 11862 ctl_abort_tasks_lun(lun, UINT32_MAX, UINT32_MAX, 11863 (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) != 0); 11864 } 11865 mtx_unlock(&lun->lun_lock); 11866 io->taskio.task_status = CTL_TASK_FUNCTION_COMPLETE; 11867 return (0); 11868} 11869 11870static int 11871ctl_i_t_nexus_reset(union ctl_io *io) 11872{ 11873 struct ctl_softc *softc = control_softc; 11874 struct ctl_lun *lun; 11875 uint32_t initidx; 11876 11877 if (!(io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)) { 11878 union ctl_ha_msg msg_info; 11879 11880 msg_info.hdr.nexus = io->io_hdr.nexus; 11881 msg_info.task.task_action = CTL_TASK_I_T_NEXUS_RESET; 11882 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 11883 msg_info.hdr.original_sc = NULL; 11884 msg_info.hdr.serializing_sc = NULL; 11885 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 11886 sizeof(msg_info.task), M_WAITOK); 11887 } 11888 11889 initidx = ctl_get_initindex(&io->io_hdr.nexus); 11890 mtx_lock(&softc->ctl_lock); 11891 STAILQ_FOREACH(lun, &softc->lun_list, links) { 11892 mtx_lock(&lun->lun_lock); 11893 ctl_abort_tasks_lun(lun, io->io_hdr.nexus.targ_port, 11894 io->io_hdr.nexus.initid, 1); 11895#ifdef CTL_WITH_CA 11896 ctl_clear_mask(lun->have_ca, initidx); 11897#endif 11898 if ((lun->flags & CTL_LUN_RESERVED) && (lun->res_idx == initidx)) 11899 lun->flags &= ~CTL_LUN_RESERVED; 11900 ctl_est_ua(lun, initidx, CTL_UA_I_T_NEXUS_LOSS); 11901 mtx_unlock(&lun->lun_lock); 11902 } 11903 mtx_unlock(&softc->ctl_lock); 11904 io->taskio.task_status = CTL_TASK_FUNCTION_COMPLETE; 11905 return (0); 11906} 11907 11908static int 11909ctl_abort_task(union ctl_io *io) 11910{ 11911 union ctl_io *xio; 11912 struct ctl_lun *lun; 11913 struct ctl_softc *softc; 11914#if 0 11915 struct sbuf sb; 11916 char printbuf[128]; 11917#endif 11918 int found; 11919 uint32_t targ_lun; 11920 11921 softc = control_softc; 11922 found = 0; 11923 11924 /* 11925 * Look up the LUN. 11926 */ 11927 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 11928 mtx_lock(&softc->ctl_lock); 11929 if ((targ_lun >= CTL_MAX_LUNS) || 11930 (lun = softc->ctl_luns[targ_lun]) == NULL) { 11931 mtx_unlock(&softc->ctl_lock); 11932 io->taskio.task_status = CTL_TASK_LUN_DOES_NOT_EXIST; 11933 return (1); 11934 } 11935 11936#if 0 11937 printf("ctl_abort_task: called for lun %lld, tag %d type %d\n", 11938 lun->lun, io->taskio.tag_num, io->taskio.tag_type); 11939#endif 11940 11941 mtx_lock(&lun->lun_lock); 11942 mtx_unlock(&softc->ctl_lock); 11943 /* 11944 * Run through the OOA queue and attempt to find the given I/O. 11945 * The target port, initiator ID, tag type and tag number have to 11946 * match the values that we got from the initiator. If we have an 11947 * untagged command to abort, simply abort the first untagged command 11948 * we come to. We only allow one untagged command at a time of course. 11949 */ 11950 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 11951 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 11952#if 0 11953 sbuf_new(&sb, printbuf, sizeof(printbuf), SBUF_FIXEDLEN); 11954 11955 sbuf_printf(&sb, "LUN %lld tag %d type %d%s%s%s%s: ", 11956 lun->lun, xio->scsiio.tag_num, 11957 xio->scsiio.tag_type, 11958 (xio->io_hdr.blocked_links.tqe_prev 11959 == NULL) ? "" : " BLOCKED", 11960 (xio->io_hdr.flags & 11961 CTL_FLAG_DMA_INPROG) ? " DMA" : "", 11962 (xio->io_hdr.flags & 11963 CTL_FLAG_ABORT) ? " ABORT" : "", 11964 (xio->io_hdr.flags & 11965 CTL_FLAG_IS_WAS_ON_RTR ? " RTR" : "")); 11966 ctl_scsi_command_string(&xio->scsiio, NULL, &sb); 11967 sbuf_finish(&sb); 11968 printf("%s\n", sbuf_data(&sb)); 11969#endif 11970 11971 if ((xio->io_hdr.nexus.targ_port != io->io_hdr.nexus.targ_port) 11972 || (xio->io_hdr.nexus.initid != io->io_hdr.nexus.initid) 11973 || (xio->io_hdr.flags & CTL_FLAG_ABORT)) 11974 continue; 11975 11976 /* 11977 * If the abort says that the task is untagged, the 11978 * task in the queue must be untagged. Otherwise, 11979 * we just check to see whether the tag numbers 11980 * match. This is because the QLogic firmware 11981 * doesn't pass back the tag type in an abort 11982 * request. 11983 */ 11984#if 0 11985 if (((xio->scsiio.tag_type == CTL_TAG_UNTAGGED) 11986 && (io->taskio.tag_type == CTL_TAG_UNTAGGED)) 11987 || (xio->scsiio.tag_num == io->taskio.tag_num)) 11988#endif 11989 /* 11990 * XXX KDM we've got problems with FC, because it 11991 * doesn't send down a tag type with aborts. So we 11992 * can only really go by the tag number... 11993 * This may cause problems with parallel SCSI. 11994 * Need to figure that out!! 11995 */ 11996 if (xio->scsiio.tag_num == io->taskio.tag_num) { 11997 xio->io_hdr.flags |= CTL_FLAG_ABORT; 11998 found = 1; 11999 if ((io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) == 0 && 12000 !(lun->flags & CTL_LUN_PRIMARY_SC)) { 12001 union ctl_ha_msg msg_info; 12002 12003 msg_info.hdr.nexus = io->io_hdr.nexus; 12004 msg_info.task.task_action = CTL_TASK_ABORT_TASK; 12005 msg_info.task.tag_num = io->taskio.tag_num; 12006 msg_info.task.tag_type = io->taskio.tag_type; 12007 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 12008 msg_info.hdr.original_sc = NULL; 12009 msg_info.hdr.serializing_sc = NULL; 12010#if 0 12011 printf("Sent Abort to other side\n"); 12012#endif 12013 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 12014 sizeof(msg_info.task), M_NOWAIT); 12015 } 12016#if 0 12017 printf("ctl_abort_task: found I/O to abort\n"); 12018#endif 12019 } 12020 } 12021 mtx_unlock(&lun->lun_lock); 12022 12023 if (found == 0) { 12024 /* 12025 * This isn't really an error. It's entirely possible for 12026 * the abort and command completion to cross on the wire. 12027 * This is more of an informative/diagnostic error. 12028 */ 12029#if 0 12030 printf("ctl_abort_task: ABORT sent for nonexistent I/O: " 12031 "%u:%u:%u tag %d type %d\n", 12032 io->io_hdr.nexus.initid, 12033 io->io_hdr.nexus.targ_port, 12034 io->io_hdr.nexus.targ_lun, io->taskio.tag_num, 12035 io->taskio.tag_type); 12036#endif 12037 } 12038 io->taskio.task_status = CTL_TASK_FUNCTION_COMPLETE; 12039 return (0); 12040} 12041 12042static int 12043ctl_query_task(union ctl_io *io, int task_set) 12044{ 12045 union ctl_io *xio; 12046 struct ctl_lun *lun; 12047 struct ctl_softc *softc; 12048 int found = 0; 12049 uint32_t targ_lun; 12050 12051 softc = control_softc; 12052 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12053 mtx_lock(&softc->ctl_lock); 12054 if ((targ_lun >= CTL_MAX_LUNS) || 12055 (lun = softc->ctl_luns[targ_lun]) == NULL) { 12056 mtx_unlock(&softc->ctl_lock); 12057 io->taskio.task_status = CTL_TASK_LUN_DOES_NOT_EXIST; 12058 return (1); 12059 } 12060 mtx_lock(&lun->lun_lock); 12061 mtx_unlock(&softc->ctl_lock); 12062 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 12063 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 12064 12065 if ((xio->io_hdr.nexus.targ_port != io->io_hdr.nexus.targ_port) 12066 || (xio->io_hdr.nexus.initid != io->io_hdr.nexus.initid) 12067 || (xio->io_hdr.flags & CTL_FLAG_ABORT)) 12068 continue; 12069 12070 if (task_set || xio->scsiio.tag_num == io->taskio.tag_num) { 12071 found = 1; 12072 break; 12073 } 12074 } 12075 mtx_unlock(&lun->lun_lock); 12076 if (found) 12077 io->taskio.task_status = CTL_TASK_FUNCTION_SUCCEEDED; 12078 else 12079 io->taskio.task_status = CTL_TASK_FUNCTION_COMPLETE; 12080 return (0); 12081} 12082 12083static int 12084ctl_query_async_event(union ctl_io *io) 12085{ 12086 struct ctl_lun *lun; 12087 struct ctl_softc *softc; 12088 ctl_ua_type ua; 12089 uint32_t targ_lun, initidx; 12090 12091 softc = control_softc; 12092 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12093 mtx_lock(&softc->ctl_lock); 12094 if ((targ_lun >= CTL_MAX_LUNS) || 12095 (lun = softc->ctl_luns[targ_lun]) == NULL) { 12096 mtx_unlock(&softc->ctl_lock); 12097 io->taskio.task_status = CTL_TASK_LUN_DOES_NOT_EXIST; 12098 return (1); 12099 } 12100 mtx_lock(&lun->lun_lock); 12101 mtx_unlock(&softc->ctl_lock); 12102 initidx = ctl_get_initindex(&io->io_hdr.nexus); 12103 ua = ctl_build_qae(lun, initidx, io->taskio.task_resp); 12104 mtx_unlock(&lun->lun_lock); 12105 if (ua != CTL_UA_NONE) 12106 io->taskio.task_status = CTL_TASK_FUNCTION_SUCCEEDED; 12107 else 12108 io->taskio.task_status = CTL_TASK_FUNCTION_COMPLETE; 12109 return (0); 12110} 12111 12112static void 12113ctl_run_task(union ctl_io *io) 12114{ 12115 struct ctl_softc *softc = control_softc; 12116 int retval = 1; 12117 12118 CTL_DEBUG_PRINT(("ctl_run_task\n")); 12119 KASSERT(io->io_hdr.io_type == CTL_IO_TASK, 12120 ("ctl_run_task: Unextected io_type %d\n", io->io_hdr.io_type)); 12121 io->taskio.task_status = CTL_TASK_FUNCTION_NOT_SUPPORTED; 12122 bzero(io->taskio.task_resp, sizeof(io->taskio.task_resp)); 12123 switch (io->taskio.task_action) { 12124 case CTL_TASK_ABORT_TASK: 12125 retval = ctl_abort_task(io); 12126 break; 12127 case CTL_TASK_ABORT_TASK_SET: 12128 case CTL_TASK_CLEAR_TASK_SET: 12129 retval = ctl_abort_task_set(io); 12130 break; 12131 case CTL_TASK_CLEAR_ACA: 12132 break; 12133 case CTL_TASK_I_T_NEXUS_RESET: 12134 retval = ctl_i_t_nexus_reset(io); 12135 break; 12136 case CTL_TASK_LUN_RESET: 12137 retval = ctl_lun_reset(softc, io); 12138 break; 12139 case CTL_TASK_TARGET_RESET: 12140 retval = ctl_target_reset(softc, io, CTL_UA_TARG_RESET); 12141 break; 12142 case CTL_TASK_BUS_RESET: 12143 retval = ctl_bus_reset(softc, io); 12144 break; 12145 case CTL_TASK_PORT_LOGIN: 12146 break; 12147 case CTL_TASK_PORT_LOGOUT: 12148 break; 12149 case CTL_TASK_QUERY_TASK: 12150 retval = ctl_query_task(io, 0); 12151 break; 12152 case CTL_TASK_QUERY_TASK_SET: 12153 retval = ctl_query_task(io, 1); 12154 break; 12155 case CTL_TASK_QUERY_ASYNC_EVENT: 12156 retval = ctl_query_async_event(io); 12157 break; 12158 default: 12159 printf("%s: got unknown task management event %d\n", 12160 __func__, io->taskio.task_action); 12161 break; 12162 } 12163 if (retval == 0) 12164 io->io_hdr.status = CTL_SUCCESS; 12165 else 12166 io->io_hdr.status = CTL_ERROR; 12167 ctl_done(io); 12168} 12169 12170/* 12171 * For HA operation. Handle commands that come in from the other 12172 * controller. 12173 */ 12174static void 12175ctl_handle_isc(union ctl_io *io) 12176{ 12177 int free_io; 12178 struct ctl_lun *lun; 12179 struct ctl_softc *softc = control_softc; 12180 uint32_t targ_lun; 12181 12182 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12183 lun = softc->ctl_luns[targ_lun]; 12184 12185 switch (io->io_hdr.msg_type) { 12186 case CTL_MSG_SERIALIZE: 12187 free_io = ctl_serialize_other_sc_cmd(&io->scsiio); 12188 break; 12189 case CTL_MSG_R2R: { 12190 const struct ctl_cmd_entry *entry; 12191 12192 /* 12193 * This is only used in SER_ONLY mode. 12194 */ 12195 free_io = 0; 12196 entry = ctl_get_cmd_entry(&io->scsiio, NULL); 12197 mtx_lock(&lun->lun_lock); 12198 if (ctl_scsiio_lun_check(lun, 12199 entry, (struct ctl_scsiio *)io) != 0) { 12200 mtx_unlock(&lun->lun_lock); 12201 ctl_done(io); 12202 break; 12203 } 12204 io->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 12205 mtx_unlock(&lun->lun_lock); 12206 ctl_enqueue_rtr(io); 12207 break; 12208 } 12209 case CTL_MSG_FINISH_IO: 12210 if (softc->ha_mode == CTL_HA_MODE_XFER) { 12211 free_io = 0; 12212 ctl_done(io); 12213 } else { 12214 free_io = 1; 12215 mtx_lock(&lun->lun_lock); 12216 TAILQ_REMOVE(&lun->ooa_queue, &io->io_hdr, 12217 ooa_links); 12218 ctl_check_blocked(lun); 12219 mtx_unlock(&lun->lun_lock); 12220 } 12221 break; 12222 case CTL_MSG_PERS_ACTION: 12223 ctl_hndl_per_res_out_on_other_sc( 12224 (union ctl_ha_msg *)&io->presio.pr_msg); 12225 free_io = 1; 12226 break; 12227 case CTL_MSG_BAD_JUJU: 12228 free_io = 0; 12229 ctl_done(io); 12230 break; 12231 case CTL_MSG_DATAMOVE: 12232 /* Only used in XFER mode */ 12233 free_io = 0; 12234 ctl_datamove_remote(io); 12235 break; 12236 case CTL_MSG_DATAMOVE_DONE: 12237 /* Only used in XFER mode */ 12238 free_io = 0; 12239 io->scsiio.be_move_done(io); 12240 break; 12241 case CTL_MSG_FAILOVER: 12242 mtx_lock(&lun->lun_lock); 12243 ctl_failover_lun(lun); 12244 mtx_unlock(&lun->lun_lock); 12245 free_io = 1; 12246 break; 12247 default: 12248 free_io = 1; 12249 printf("%s: Invalid message type %d\n", 12250 __func__, io->io_hdr.msg_type); 12251 break; 12252 } 12253 if (free_io) 12254 ctl_free_io(io); 12255 12256} 12257 12258 12259/* 12260 * Returns the match type in the case of a match, or CTL_LUN_PAT_NONE if 12261 * there is no match. 12262 */ 12263static ctl_lun_error_pattern 12264ctl_cmd_pattern_match(struct ctl_scsiio *ctsio, struct ctl_error_desc *desc) 12265{ 12266 const struct ctl_cmd_entry *entry; 12267 ctl_lun_error_pattern filtered_pattern, pattern; 12268 12269 pattern = desc->error_pattern; 12270 12271 /* 12272 * XXX KDM we need more data passed into this function to match a 12273 * custom pattern, and we actually need to implement custom pattern 12274 * matching. 12275 */ 12276 if (pattern & CTL_LUN_PAT_CMD) 12277 return (CTL_LUN_PAT_CMD); 12278 12279 if ((pattern & CTL_LUN_PAT_MASK) == CTL_LUN_PAT_ANY) 12280 return (CTL_LUN_PAT_ANY); 12281 12282 entry = ctl_get_cmd_entry(ctsio, NULL); 12283 12284 filtered_pattern = entry->pattern & pattern; 12285 12286 /* 12287 * If the user requested specific flags in the pattern (e.g. 12288 * CTL_LUN_PAT_RANGE), make sure the command supports all of those 12289 * flags. 12290 * 12291 * If the user did not specify any flags, it doesn't matter whether 12292 * or not the command supports the flags. 12293 */ 12294 if ((filtered_pattern & ~CTL_LUN_PAT_MASK) != 12295 (pattern & ~CTL_LUN_PAT_MASK)) 12296 return (CTL_LUN_PAT_NONE); 12297 12298 /* 12299 * If the user asked for a range check, see if the requested LBA 12300 * range overlaps with this command's LBA range. 12301 */ 12302 if (filtered_pattern & CTL_LUN_PAT_RANGE) { 12303 uint64_t lba1; 12304 uint64_t len1; 12305 ctl_action action; 12306 int retval; 12307 12308 retval = ctl_get_lba_len((union ctl_io *)ctsio, &lba1, &len1); 12309 if (retval != 0) 12310 return (CTL_LUN_PAT_NONE); 12311 12312 action = ctl_extent_check_lba(lba1, len1, desc->lba_range.lba, 12313 desc->lba_range.len, FALSE); 12314 /* 12315 * A "pass" means that the LBA ranges don't overlap, so 12316 * this doesn't match the user's range criteria. 12317 */ 12318 if (action == CTL_ACTION_PASS) 12319 return (CTL_LUN_PAT_NONE); 12320 } 12321 12322 return (filtered_pattern); 12323} 12324 12325static void 12326ctl_inject_error(struct ctl_lun *lun, union ctl_io *io) 12327{ 12328 struct ctl_error_desc *desc, *desc2; 12329 12330 mtx_assert(&lun->lun_lock, MA_OWNED); 12331 12332 STAILQ_FOREACH_SAFE(desc, &lun->error_list, links, desc2) { 12333 ctl_lun_error_pattern pattern; 12334 /* 12335 * Check to see whether this particular command matches 12336 * the pattern in the descriptor. 12337 */ 12338 pattern = ctl_cmd_pattern_match(&io->scsiio, desc); 12339 if ((pattern & CTL_LUN_PAT_MASK) == CTL_LUN_PAT_NONE) 12340 continue; 12341 12342 switch (desc->lun_error & CTL_LUN_INJ_TYPE) { 12343 case CTL_LUN_INJ_ABORTED: 12344 ctl_set_aborted(&io->scsiio); 12345 break; 12346 case CTL_LUN_INJ_MEDIUM_ERR: 12347 ctl_set_medium_error(&io->scsiio, 12348 (io->io_hdr.flags & CTL_FLAG_DATA_MASK) != 12349 CTL_FLAG_DATA_OUT); 12350 break; 12351 case CTL_LUN_INJ_UA: 12352 /* 29h/00h POWER ON, RESET, OR BUS DEVICE RESET 12353 * OCCURRED */ 12354 ctl_set_ua(&io->scsiio, 0x29, 0x00); 12355 break; 12356 case CTL_LUN_INJ_CUSTOM: 12357 /* 12358 * We're assuming the user knows what he is doing. 12359 * Just copy the sense information without doing 12360 * checks. 12361 */ 12362 bcopy(&desc->custom_sense, &io->scsiio.sense_data, 12363 MIN(sizeof(desc->custom_sense), 12364 sizeof(io->scsiio.sense_data))); 12365 io->scsiio.scsi_status = SCSI_STATUS_CHECK_COND; 12366 io->scsiio.sense_len = SSD_FULL_SIZE; 12367 io->io_hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 12368 break; 12369 case CTL_LUN_INJ_NONE: 12370 default: 12371 /* 12372 * If this is an error injection type we don't know 12373 * about, clear the continuous flag (if it is set) 12374 * so it will get deleted below. 12375 */ 12376 desc->lun_error &= ~CTL_LUN_INJ_CONTINUOUS; 12377 break; 12378 } 12379 /* 12380 * By default, each error injection action is a one-shot 12381 */ 12382 if (desc->lun_error & CTL_LUN_INJ_CONTINUOUS) 12383 continue; 12384 12385 STAILQ_REMOVE(&lun->error_list, desc, ctl_error_desc, links); 12386 12387 free(desc, M_CTL); 12388 } 12389} 12390 12391#ifdef CTL_IO_DELAY 12392static void 12393ctl_datamove_timer_wakeup(void *arg) 12394{ 12395 union ctl_io *io; 12396 12397 io = (union ctl_io *)arg; 12398 12399 ctl_datamove(io); 12400} 12401#endif /* CTL_IO_DELAY */ 12402 12403void 12404ctl_datamove(union ctl_io *io) 12405{ 12406 struct ctl_lun *lun; 12407 void (*fe_datamove)(union ctl_io *io); 12408 12409 mtx_assert(&control_softc->ctl_lock, MA_NOTOWNED); 12410 12411 CTL_DEBUG_PRINT(("ctl_datamove\n")); 12412 12413 lun = (struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 12414#ifdef CTL_TIME_IO 12415 if ((time_uptime - io->io_hdr.start_time) > ctl_time_io_secs) { 12416 char str[256]; 12417 char path_str[64]; 12418 struct sbuf sb; 12419 12420 ctl_scsi_path_string(io, path_str, sizeof(path_str)); 12421 sbuf_new(&sb, str, sizeof(str), SBUF_FIXEDLEN); 12422 12423 sbuf_cat(&sb, path_str); 12424 switch (io->io_hdr.io_type) { 12425 case CTL_IO_SCSI: 12426 ctl_scsi_command_string(&io->scsiio, NULL, &sb); 12427 sbuf_printf(&sb, "\n"); 12428 sbuf_cat(&sb, path_str); 12429 sbuf_printf(&sb, "Tag: 0x%04x, type %d\n", 12430 io->scsiio.tag_num, io->scsiio.tag_type); 12431 break; 12432 case CTL_IO_TASK: 12433 sbuf_printf(&sb, "Task I/O type: %d, Tag: 0x%04x, " 12434 "Tag Type: %d\n", io->taskio.task_action, 12435 io->taskio.tag_num, io->taskio.tag_type); 12436 break; 12437 default: 12438 printf("Invalid CTL I/O type %d\n", io->io_hdr.io_type); 12439 panic("Invalid CTL I/O type %d\n", io->io_hdr.io_type); 12440 break; 12441 } 12442 sbuf_cat(&sb, path_str); 12443 sbuf_printf(&sb, "ctl_datamove: %jd seconds\n", 12444 (intmax_t)time_uptime - io->io_hdr.start_time); 12445 sbuf_finish(&sb); 12446 printf("%s", sbuf_data(&sb)); 12447 } 12448#endif /* CTL_TIME_IO */ 12449 12450#ifdef CTL_IO_DELAY 12451 if (io->io_hdr.flags & CTL_FLAG_DELAY_DONE) { 12452 io->io_hdr.flags &= ~CTL_FLAG_DELAY_DONE; 12453 } else { 12454 if ((lun != NULL) 12455 && (lun->delay_info.datamove_delay > 0)) { 12456 12457 callout_init(&io->io_hdr.delay_callout, /*mpsafe*/ 1); 12458 io->io_hdr.flags |= CTL_FLAG_DELAY_DONE; 12459 callout_reset(&io->io_hdr.delay_callout, 12460 lun->delay_info.datamove_delay * hz, 12461 ctl_datamove_timer_wakeup, io); 12462 if (lun->delay_info.datamove_type == 12463 CTL_DELAY_TYPE_ONESHOT) 12464 lun->delay_info.datamove_delay = 0; 12465 return; 12466 } 12467 } 12468#endif 12469 12470 /* 12471 * This command has been aborted. Set the port status, so we fail 12472 * the data move. 12473 */ 12474 if (io->io_hdr.flags & CTL_FLAG_ABORT) { 12475 printf("ctl_datamove: tag 0x%04x on (%u:%u:%u) aborted\n", 12476 io->scsiio.tag_num, io->io_hdr.nexus.initid, 12477 io->io_hdr.nexus.targ_port, 12478 io->io_hdr.nexus.targ_lun); 12479 io->io_hdr.port_status = 31337; 12480 /* 12481 * Note that the backend, in this case, will get the 12482 * callback in its context. In other cases it may get 12483 * called in the frontend's interrupt thread context. 12484 */ 12485 io->scsiio.be_move_done(io); 12486 return; 12487 } 12488 12489 /* Don't confuse frontend with zero length data move. */ 12490 if (io->scsiio.kern_data_len == 0) { 12491 io->scsiio.be_move_done(io); 12492 return; 12493 } 12494 12495 /* 12496 * If we're in XFER mode and this I/O is from the other shelf 12497 * controller, we need to send the DMA to the other side to 12498 * actually transfer the data to/from the host. In serialize only 12499 * mode the transfer happens below CTL and ctl_datamove() is only 12500 * called on the machine that originally received the I/O. 12501 */ 12502 if ((control_softc->ha_mode == CTL_HA_MODE_XFER) 12503 && (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)) { 12504 union ctl_ha_msg msg; 12505 uint32_t sg_entries_sent; 12506 int do_sg_copy; 12507 int i; 12508 12509 memset(&msg, 0, sizeof(msg)); 12510 msg.hdr.msg_type = CTL_MSG_DATAMOVE; 12511 msg.hdr.original_sc = io->io_hdr.original_sc; 12512 msg.hdr.serializing_sc = io; 12513 msg.hdr.nexus = io->io_hdr.nexus; 12514 msg.hdr.status = io->io_hdr.status; 12515 msg.dt.flags = io->io_hdr.flags; 12516 /* 12517 * We convert everything into a S/G list here. We can't 12518 * pass by reference, only by value between controllers. 12519 * So we can't pass a pointer to the S/G list, only as many 12520 * S/G entries as we can fit in here. If it's possible for 12521 * us to get more than CTL_HA_MAX_SG_ENTRIES S/G entries, 12522 * then we need to break this up into multiple transfers. 12523 */ 12524 if (io->scsiio.kern_sg_entries == 0) { 12525 msg.dt.kern_sg_entries = 1; 12526#if 0 12527 /* 12528 * Convert to a physical address if this is a 12529 * virtual address. 12530 */ 12531 if (io->io_hdr.flags & CTL_FLAG_BUS_ADDR) { 12532 msg.dt.sg_list[0].addr = 12533 io->scsiio.kern_data_ptr; 12534 } else { 12535 /* 12536 * XXX KDM use busdma here! 12537 */ 12538 msg.dt.sg_list[0].addr = (void *) 12539 vtophys(io->scsiio.kern_data_ptr); 12540 } 12541#else 12542 KASSERT((io->io_hdr.flags & CTL_FLAG_BUS_ADDR) == 0, 12543 ("HA does not support BUS_ADDR")); 12544 msg.dt.sg_list[0].addr = io->scsiio.kern_data_ptr; 12545#endif 12546 12547 msg.dt.sg_list[0].len = io->scsiio.kern_data_len; 12548 do_sg_copy = 0; 12549 } else { 12550 msg.dt.kern_sg_entries = io->scsiio.kern_sg_entries; 12551 do_sg_copy = 1; 12552 } 12553 12554 msg.dt.kern_data_len = io->scsiio.kern_data_len; 12555 msg.dt.kern_total_len = io->scsiio.kern_total_len; 12556 msg.dt.kern_data_resid = io->scsiio.kern_data_resid; 12557 msg.dt.kern_rel_offset = io->scsiio.kern_rel_offset; 12558 msg.dt.sg_sequence = 0; 12559 12560 /* 12561 * Loop until we've sent all of the S/G entries. On the 12562 * other end, we'll recompose these S/G entries into one 12563 * contiguous list before passing it to the 12564 */ 12565 for (sg_entries_sent = 0; sg_entries_sent < 12566 msg.dt.kern_sg_entries; msg.dt.sg_sequence++) { 12567 msg.dt.cur_sg_entries = MIN((sizeof(msg.dt.sg_list)/ 12568 sizeof(msg.dt.sg_list[0])), 12569 msg.dt.kern_sg_entries - sg_entries_sent); 12570 12571 if (do_sg_copy != 0) { 12572 struct ctl_sg_entry *sgl; 12573 int j; 12574 12575 sgl = (struct ctl_sg_entry *) 12576 io->scsiio.kern_data_ptr; 12577 /* 12578 * If this is in cached memory, flush the cache 12579 * before we send the DMA request to the other 12580 * controller. We want to do this in either 12581 * the * read or the write case. The read 12582 * case is straightforward. In the write 12583 * case, we want to make sure nothing is 12584 * in the local cache that could overwrite 12585 * the DMAed data. 12586 */ 12587 12588 for (i = sg_entries_sent, j = 0; 12589 i < msg.dt.cur_sg_entries; i++, j++) { 12590#if 0 12591 if ((io->io_hdr.flags & 12592 CTL_FLAG_BUS_ADDR) == 0) { 12593 /* 12594 * XXX KDM use busdma. 12595 */ 12596 msg.dt.sg_list[j].addr =(void *) 12597 vtophys(sgl[i].addr); 12598 } else { 12599 msg.dt.sg_list[j].addr = 12600 sgl[i].addr; 12601 } 12602#else 12603 KASSERT((io->io_hdr.flags & 12604 CTL_FLAG_BUS_ADDR) == 0, 12605 ("HA does not support BUS_ADDR")); 12606 msg.dt.sg_list[j].addr = sgl[i].addr; 12607#endif 12608 msg.dt.sg_list[j].len = sgl[i].len; 12609 } 12610 } 12611 12612 sg_entries_sent += msg.dt.cur_sg_entries; 12613 if (sg_entries_sent >= msg.dt.kern_sg_entries) 12614 msg.dt.sg_last = 1; 12615 else 12616 msg.dt.sg_last = 0; 12617 12618 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, 12619 sizeof(msg.dt) - sizeof(msg.dt.sg_list) + 12620 sizeof(struct ctl_sg_entry)*msg.dt.cur_sg_entries, 12621 M_WAITOK) > CTL_HA_STATUS_SUCCESS) { 12622 io->io_hdr.port_status = 31341; 12623 io->scsiio.be_move_done(io); 12624 return; 12625 } 12626 12627 msg.dt.sent_sg_entries = sg_entries_sent; 12628 } 12629 12630 /* 12631 * Officially handover the request from us to peer. 12632 * If failover has just happened, then we must return error. 12633 * If failover happen just after, then it is not our problem. 12634 */ 12635 if (lun) 12636 mtx_lock(&lun->lun_lock); 12637 if (io->io_hdr.flags & CTL_FLAG_FAILOVER) { 12638 if (lun) 12639 mtx_unlock(&lun->lun_lock); 12640 io->io_hdr.port_status = 31342; 12641 io->scsiio.be_move_done(io); 12642 return; 12643 } 12644 io->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 12645 io->io_hdr.flags |= CTL_FLAG_DMA_INPROG; 12646 if (lun) 12647 mtx_unlock(&lun->lun_lock); 12648 } else { 12649 12650 /* 12651 * Lookup the fe_datamove() function for this particular 12652 * front end. 12653 */ 12654 fe_datamove = ctl_io_port(&io->io_hdr)->fe_datamove; 12655 12656 fe_datamove(io); 12657 } 12658} 12659 12660static void 12661ctl_send_datamove_done(union ctl_io *io, int have_lock) 12662{ 12663 union ctl_ha_msg msg; 12664 12665 memset(&msg, 0, sizeof(msg)); 12666 12667 msg.hdr.msg_type = CTL_MSG_DATAMOVE_DONE; 12668 msg.hdr.original_sc = io; 12669 msg.hdr.serializing_sc = io->io_hdr.serializing_sc; 12670 msg.hdr.nexus = io->io_hdr.nexus; 12671 msg.hdr.status = io->io_hdr.status; 12672 msg.scsi.tag_num = io->scsiio.tag_num; 12673 msg.scsi.tag_type = io->scsiio.tag_type; 12674 msg.scsi.scsi_status = io->scsiio.scsi_status; 12675 memcpy(&msg.scsi.sense_data, &io->scsiio.sense_data, 12676 io->scsiio.sense_len); 12677 msg.scsi.sense_len = io->scsiio.sense_len; 12678 msg.scsi.sense_residual = io->scsiio.sense_residual; 12679 msg.scsi.fetd_status = io->io_hdr.port_status; 12680 msg.scsi.residual = io->scsiio.residual; 12681 io->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 12682 12683 if (io->io_hdr.flags & CTL_FLAG_FAILOVER) { 12684 ctl_failover_io(io, /*have_lock*/ have_lock); 12685 return; 12686 } 12687 12688 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, 12689 sizeof(msg.scsi) - sizeof(msg.scsi.sense_data) + 12690 msg.scsi.sense_len, M_WAITOK); 12691} 12692 12693/* 12694 * The DMA to the remote side is done, now we need to tell the other side 12695 * we're done so it can continue with its data movement. 12696 */ 12697static void 12698ctl_datamove_remote_write_cb(struct ctl_ha_dt_req *rq) 12699{ 12700 union ctl_io *io; 12701 int i; 12702 12703 io = rq->context; 12704 12705 if (rq->ret != CTL_HA_STATUS_SUCCESS) { 12706 printf("%s: ISC DMA write failed with error %d", __func__, 12707 rq->ret); 12708 ctl_set_internal_failure(&io->scsiio, 12709 /*sks_valid*/ 1, 12710 /*retry_count*/ rq->ret); 12711 } 12712 12713 ctl_dt_req_free(rq); 12714 12715 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 12716 free(io->io_hdr.local_sglist[i].addr, M_CTL); 12717 free(io->io_hdr.remote_sglist, M_CTL); 12718 io->io_hdr.remote_sglist = NULL; 12719 io->io_hdr.local_sglist = NULL; 12720 12721 /* 12722 * The data is in local and remote memory, so now we need to send 12723 * status (good or back) back to the other side. 12724 */ 12725 ctl_send_datamove_done(io, /*have_lock*/ 0); 12726} 12727 12728/* 12729 * We've moved the data from the host/controller into local memory. Now we 12730 * need to push it over to the remote controller's memory. 12731 */ 12732static int 12733ctl_datamove_remote_dm_write_cb(union ctl_io *io) 12734{ 12735 int retval; 12736 12737 retval = ctl_datamove_remote_xfer(io, CTL_HA_DT_CMD_WRITE, 12738 ctl_datamove_remote_write_cb); 12739 return (retval); 12740} 12741 12742static void 12743ctl_datamove_remote_write(union ctl_io *io) 12744{ 12745 int retval; 12746 void (*fe_datamove)(union ctl_io *io); 12747 12748 /* 12749 * - Get the data from the host/HBA into local memory. 12750 * - DMA memory from the local controller to the remote controller. 12751 * - Send status back to the remote controller. 12752 */ 12753 12754 retval = ctl_datamove_remote_sgl_setup(io); 12755 if (retval != 0) 12756 return; 12757 12758 /* Switch the pointer over so the FETD knows what to do */ 12759 io->scsiio.kern_data_ptr = (uint8_t *)io->io_hdr.local_sglist; 12760 12761 /* 12762 * Use a custom move done callback, since we need to send completion 12763 * back to the other controller, not to the backend on this side. 12764 */ 12765 io->scsiio.be_move_done = ctl_datamove_remote_dm_write_cb; 12766 12767 fe_datamove = ctl_io_port(&io->io_hdr)->fe_datamove; 12768 fe_datamove(io); 12769} 12770 12771static int 12772ctl_datamove_remote_dm_read_cb(union ctl_io *io) 12773{ 12774#if 0 12775 char str[256]; 12776 char path_str[64]; 12777 struct sbuf sb; 12778#endif 12779 int i; 12780 12781 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 12782 free(io->io_hdr.local_sglist[i].addr, M_CTL); 12783 free(io->io_hdr.remote_sglist, M_CTL); 12784 io->io_hdr.remote_sglist = NULL; 12785 io->io_hdr.local_sglist = NULL; 12786 12787#if 0 12788 scsi_path_string(io, path_str, sizeof(path_str)); 12789 sbuf_new(&sb, str, sizeof(str), SBUF_FIXEDLEN); 12790 sbuf_cat(&sb, path_str); 12791 scsi_command_string(&io->scsiio, NULL, &sb); 12792 sbuf_printf(&sb, "\n"); 12793 sbuf_cat(&sb, path_str); 12794 sbuf_printf(&sb, "Tag: 0x%04x, type %d\n", 12795 io->scsiio.tag_num, io->scsiio.tag_type); 12796 sbuf_cat(&sb, path_str); 12797 sbuf_printf(&sb, "%s: flags %#x, status %#x\n", __func__, 12798 io->io_hdr.flags, io->io_hdr.status); 12799 sbuf_finish(&sb); 12800 printk("%s", sbuf_data(&sb)); 12801#endif 12802 12803 12804 /* 12805 * The read is done, now we need to send status (good or bad) back 12806 * to the other side. 12807 */ 12808 ctl_send_datamove_done(io, /*have_lock*/ 0); 12809 12810 return (0); 12811} 12812 12813static void 12814ctl_datamove_remote_read_cb(struct ctl_ha_dt_req *rq) 12815{ 12816 union ctl_io *io; 12817 void (*fe_datamove)(union ctl_io *io); 12818 12819 io = rq->context; 12820 12821 if (rq->ret != CTL_HA_STATUS_SUCCESS) { 12822 printf("%s: ISC DMA read failed with error %d\n", __func__, 12823 rq->ret); 12824 ctl_set_internal_failure(&io->scsiio, 12825 /*sks_valid*/ 1, 12826 /*retry_count*/ rq->ret); 12827 } 12828 12829 ctl_dt_req_free(rq); 12830 12831 /* Switch the pointer over so the FETD knows what to do */ 12832 io->scsiio.kern_data_ptr = (uint8_t *)io->io_hdr.local_sglist; 12833 12834 /* 12835 * Use a custom move done callback, since we need to send completion 12836 * back to the other controller, not to the backend on this side. 12837 */ 12838 io->scsiio.be_move_done = ctl_datamove_remote_dm_read_cb; 12839 12840 /* XXX KDM add checks like the ones in ctl_datamove? */ 12841 12842 fe_datamove = ctl_io_port(&io->io_hdr)->fe_datamove; 12843 fe_datamove(io); 12844} 12845 12846static int 12847ctl_datamove_remote_sgl_setup(union ctl_io *io) 12848{ 12849 struct ctl_sg_entry *local_sglist; 12850 uint32_t len_to_go; 12851 int retval; 12852 int i; 12853 12854 retval = 0; 12855 local_sglist = io->io_hdr.local_sglist; 12856 len_to_go = io->scsiio.kern_data_len; 12857 12858 /* 12859 * The difficult thing here is that the size of the various 12860 * S/G segments may be different than the size from the 12861 * remote controller. That'll make it harder when DMAing 12862 * the data back to the other side. 12863 */ 12864 for (i = 0; len_to_go > 0; i++) { 12865 local_sglist[i].len = MIN(len_to_go, CTL_HA_DATAMOVE_SEGMENT); 12866 local_sglist[i].addr = 12867 malloc(local_sglist[i].len, M_CTL, M_WAITOK); 12868 12869 len_to_go -= local_sglist[i].len; 12870 } 12871 /* 12872 * Reset the number of S/G entries accordingly. The original 12873 * number of S/G entries is available in rem_sg_entries. 12874 */ 12875 io->scsiio.kern_sg_entries = i; 12876 12877#if 0 12878 printf("%s: kern_sg_entries = %d\n", __func__, 12879 io->scsiio.kern_sg_entries); 12880 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 12881 printf("%s: sg[%d] = %p, %lu\n", __func__, i, 12882 local_sglist[i].addr, local_sglist[i].len); 12883#endif 12884 12885 return (retval); 12886} 12887 12888static int 12889ctl_datamove_remote_xfer(union ctl_io *io, unsigned command, 12890 ctl_ha_dt_cb callback) 12891{ 12892 struct ctl_ha_dt_req *rq; 12893 struct ctl_sg_entry *remote_sglist, *local_sglist; 12894 uint32_t local_used, remote_used, total_used; 12895 int i, j, isc_ret; 12896 12897 rq = ctl_dt_req_alloc(); 12898 12899 /* 12900 * If we failed to allocate the request, and if the DMA didn't fail 12901 * anyway, set busy status. This is just a resource allocation 12902 * failure. 12903 */ 12904 if ((rq == NULL) 12905 && ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE && 12906 (io->io_hdr.status & CTL_STATUS_MASK) != CTL_SUCCESS)) 12907 ctl_set_busy(&io->scsiio); 12908 12909 if ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE && 12910 (io->io_hdr.status & CTL_STATUS_MASK) != CTL_SUCCESS) { 12911 12912 if (rq != NULL) 12913 ctl_dt_req_free(rq); 12914 12915 /* 12916 * The data move failed. We need to return status back 12917 * to the other controller. No point in trying to DMA 12918 * data to the remote controller. 12919 */ 12920 12921 ctl_send_datamove_done(io, /*have_lock*/ 0); 12922 12923 return (1); 12924 } 12925 12926 local_sglist = io->io_hdr.local_sglist; 12927 remote_sglist = io->io_hdr.remote_sglist; 12928 local_used = 0; 12929 remote_used = 0; 12930 total_used = 0; 12931 12932 /* 12933 * Pull/push the data over the wire from/to the other controller. 12934 * This takes into account the possibility that the local and 12935 * remote sglists may not be identical in terms of the size of 12936 * the elements and the number of elements. 12937 * 12938 * One fundamental assumption here is that the length allocated for 12939 * both the local and remote sglists is identical. Otherwise, we've 12940 * essentially got a coding error of some sort. 12941 */ 12942 isc_ret = CTL_HA_STATUS_SUCCESS; 12943 for (i = 0, j = 0; total_used < io->scsiio.kern_data_len; ) { 12944 uint32_t cur_len; 12945 uint8_t *tmp_ptr; 12946 12947 rq->command = command; 12948 rq->context = io; 12949 12950 /* 12951 * Both pointers should be aligned. But it is possible 12952 * that the allocation length is not. They should both 12953 * also have enough slack left over at the end, though, 12954 * to round up to the next 8 byte boundary. 12955 */ 12956 cur_len = MIN(local_sglist[i].len - local_used, 12957 remote_sglist[j].len - remote_used); 12958 rq->size = cur_len; 12959 12960 tmp_ptr = (uint8_t *)local_sglist[i].addr; 12961 tmp_ptr += local_used; 12962 12963#if 0 12964 /* Use physical addresses when talking to ISC hardware */ 12965 if ((io->io_hdr.flags & CTL_FLAG_BUS_ADDR) == 0) { 12966 /* XXX KDM use busdma */ 12967 rq->local = vtophys(tmp_ptr); 12968 } else 12969 rq->local = tmp_ptr; 12970#else 12971 KASSERT((io->io_hdr.flags & CTL_FLAG_BUS_ADDR) == 0, 12972 ("HA does not support BUS_ADDR")); 12973 rq->local = tmp_ptr; 12974#endif 12975 12976 tmp_ptr = (uint8_t *)remote_sglist[j].addr; 12977 tmp_ptr += remote_used; 12978 rq->remote = tmp_ptr; 12979 12980 rq->callback = NULL; 12981 12982 local_used += cur_len; 12983 if (local_used >= local_sglist[i].len) { 12984 i++; 12985 local_used = 0; 12986 } 12987 12988 remote_used += cur_len; 12989 if (remote_used >= remote_sglist[j].len) { 12990 j++; 12991 remote_used = 0; 12992 } 12993 total_used += cur_len; 12994 12995 if (total_used >= io->scsiio.kern_data_len) 12996 rq->callback = callback; 12997 12998#if 0 12999 printf("%s: %s: local %p remote %p size %d\n", __func__, 13000 (command == CTL_HA_DT_CMD_WRITE) ? "WRITE" : "READ", 13001 rq->local, rq->remote, rq->size); 13002#endif 13003 13004 isc_ret = ctl_dt_single(rq); 13005 if (isc_ret > CTL_HA_STATUS_SUCCESS) 13006 break; 13007 } 13008 if (isc_ret != CTL_HA_STATUS_WAIT) { 13009 rq->ret = isc_ret; 13010 callback(rq); 13011 } 13012 13013 return (0); 13014} 13015 13016static void 13017ctl_datamove_remote_read(union ctl_io *io) 13018{ 13019 int retval; 13020 int i; 13021 13022 /* 13023 * This will send an error to the other controller in the case of a 13024 * failure. 13025 */ 13026 retval = ctl_datamove_remote_sgl_setup(io); 13027 if (retval != 0) 13028 return; 13029 13030 retval = ctl_datamove_remote_xfer(io, CTL_HA_DT_CMD_READ, 13031 ctl_datamove_remote_read_cb); 13032 if (retval != 0) { 13033 /* 13034 * Make sure we free memory if there was an error.. The 13035 * ctl_datamove_remote_xfer() function will send the 13036 * datamove done message, or call the callback with an 13037 * error if there is a problem. 13038 */ 13039 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 13040 free(io->io_hdr.local_sglist[i].addr, M_CTL); 13041 free(io->io_hdr.remote_sglist, M_CTL); 13042 io->io_hdr.remote_sglist = NULL; 13043 io->io_hdr.local_sglist = NULL; 13044 } 13045} 13046 13047/* 13048 * Process a datamove request from the other controller. This is used for 13049 * XFER mode only, not SER_ONLY mode. For writes, we DMA into local memory 13050 * first. Once that is complete, the data gets DMAed into the remote 13051 * controller's memory. For reads, we DMA from the remote controller's 13052 * memory into our memory first, and then move it out to the FETD. 13053 */ 13054static void 13055ctl_datamove_remote(union ctl_io *io) 13056{ 13057 13058 mtx_assert(&control_softc->ctl_lock, MA_NOTOWNED); 13059 13060 if (io->io_hdr.flags & CTL_FLAG_FAILOVER) { 13061 ctl_failover_io(io, /*have_lock*/ 0); 13062 return; 13063 } 13064 13065 /* 13066 * Note that we look for an aborted I/O here, but don't do some of 13067 * the other checks that ctl_datamove() normally does. 13068 * We don't need to run the datamove delay code, since that should 13069 * have been done if need be on the other controller. 13070 */ 13071 if (io->io_hdr.flags & CTL_FLAG_ABORT) { 13072 printf("%s: tag 0x%04x on (%u:%u:%u) aborted\n", __func__, 13073 io->scsiio.tag_num, io->io_hdr.nexus.initid, 13074 io->io_hdr.nexus.targ_port, 13075 io->io_hdr.nexus.targ_lun); 13076 io->io_hdr.port_status = 31338; 13077 ctl_send_datamove_done(io, /*have_lock*/ 0); 13078 return; 13079 } 13080 13081 if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_OUT) 13082 ctl_datamove_remote_write(io); 13083 else if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_IN) 13084 ctl_datamove_remote_read(io); 13085 else { 13086 io->io_hdr.port_status = 31339; 13087 ctl_send_datamove_done(io, /*have_lock*/ 0); 13088 } 13089} 13090 13091static int 13092ctl_process_done(union ctl_io *io) 13093{ 13094 struct ctl_lun *lun; 13095 struct ctl_softc *softc = control_softc; 13096 void (*fe_done)(union ctl_io *io); 13097 union ctl_ha_msg msg; 13098 uint32_t targ_port = io->io_hdr.nexus.targ_port; 13099 13100 CTL_DEBUG_PRINT(("ctl_process_done\n")); 13101 13102 if ((io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) == 0) 13103 fe_done = softc->ctl_ports[targ_port]->fe_done; 13104 else 13105 fe_done = NULL; 13106 13107#ifdef CTL_TIME_IO 13108 if ((time_uptime - io->io_hdr.start_time) > ctl_time_io_secs) { 13109 char str[256]; 13110 char path_str[64]; 13111 struct sbuf sb; 13112 13113 ctl_scsi_path_string(io, path_str, sizeof(path_str)); 13114 sbuf_new(&sb, str, sizeof(str), SBUF_FIXEDLEN); 13115 13116 sbuf_cat(&sb, path_str); 13117 switch (io->io_hdr.io_type) { 13118 case CTL_IO_SCSI: 13119 ctl_scsi_command_string(&io->scsiio, NULL, &sb); 13120 sbuf_printf(&sb, "\n"); 13121 sbuf_cat(&sb, path_str); 13122 sbuf_printf(&sb, "Tag: 0x%04x, type %d\n", 13123 io->scsiio.tag_num, io->scsiio.tag_type); 13124 break; 13125 case CTL_IO_TASK: 13126 sbuf_printf(&sb, "Task I/O type: %d, Tag: 0x%04x, " 13127 "Tag Type: %d\n", io->taskio.task_action, 13128 io->taskio.tag_num, io->taskio.tag_type); 13129 break; 13130 default: 13131 printf("Invalid CTL I/O type %d\n", io->io_hdr.io_type); 13132 panic("Invalid CTL I/O type %d\n", io->io_hdr.io_type); 13133 break; 13134 } 13135 sbuf_cat(&sb, path_str); 13136 sbuf_printf(&sb, "ctl_process_done: %jd seconds\n", 13137 (intmax_t)time_uptime - io->io_hdr.start_time); 13138 sbuf_finish(&sb); 13139 printf("%s", sbuf_data(&sb)); 13140 } 13141#endif /* CTL_TIME_IO */ 13142 13143 switch (io->io_hdr.io_type) { 13144 case CTL_IO_SCSI: 13145 break; 13146 case CTL_IO_TASK: 13147 if (ctl_debug & CTL_DEBUG_INFO) 13148 ctl_io_error_print(io, NULL); 13149 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) 13150 ctl_free_io(io); 13151 else 13152 fe_done(io); 13153 return (CTL_RETVAL_COMPLETE); 13154 default: 13155 panic("ctl_process_done: invalid io type %d\n", 13156 io->io_hdr.io_type); 13157 break; /* NOTREACHED */ 13158 } 13159 13160 lun = (struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 13161 if (lun == NULL) { 13162 CTL_DEBUG_PRINT(("NULL LUN for lun %d\n", 13163 io->io_hdr.nexus.targ_mapped_lun)); 13164 goto bailout; 13165 } 13166 13167 mtx_lock(&lun->lun_lock); 13168 13169 /* 13170 * Check to see if we have any errors to inject here. We only 13171 * inject errors for commands that don't already have errors set. 13172 */ 13173 if ((STAILQ_FIRST(&lun->error_list) != NULL) && 13174 ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS) && 13175 ((io->io_hdr.flags & CTL_FLAG_STATUS_SENT) == 0)) 13176 ctl_inject_error(lun, io); 13177 13178 /* 13179 * XXX KDM how do we treat commands that aren't completed 13180 * successfully? 13181 * 13182 * XXX KDM should we also track I/O latency? 13183 */ 13184 if ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS && 13185 io->io_hdr.io_type == CTL_IO_SCSI) { 13186#ifdef CTL_TIME_IO 13187 struct bintime cur_bt; 13188#endif 13189 int type; 13190 13191 if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == 13192 CTL_FLAG_DATA_IN) 13193 type = CTL_STATS_READ; 13194 else if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == 13195 CTL_FLAG_DATA_OUT) 13196 type = CTL_STATS_WRITE; 13197 else 13198 type = CTL_STATS_NO_IO; 13199 13200 lun->stats.ports[targ_port].bytes[type] += 13201 io->scsiio.kern_total_len; 13202 lun->stats.ports[targ_port].operations[type]++; 13203#ifdef CTL_TIME_IO 13204 bintime_add(&lun->stats.ports[targ_port].dma_time[type], 13205 &io->io_hdr.dma_bt); 13206 lun->stats.ports[targ_port].num_dmas[type] += 13207 io->io_hdr.num_dmas; 13208 getbintime(&cur_bt); 13209 bintime_sub(&cur_bt, &io->io_hdr.start_bt); 13210 bintime_add(&lun->stats.ports[targ_port].time[type], &cur_bt); 13211#endif 13212 } 13213 13214 /* 13215 * Remove this from the OOA queue. 13216 */ 13217 TAILQ_REMOVE(&lun->ooa_queue, &io->io_hdr, ooa_links); 13218#ifdef CTL_TIME_IO 13219 if (TAILQ_EMPTY(&lun->ooa_queue)) 13220 lun->last_busy = getsbinuptime(); 13221#endif 13222 13223 /* 13224 * Run through the blocked queue on this LUN and see if anything 13225 * has become unblocked, now that this transaction is done. 13226 */ 13227 ctl_check_blocked(lun); 13228 13229 /* 13230 * If the LUN has been invalidated, free it if there is nothing 13231 * left on its OOA queue. 13232 */ 13233 if ((lun->flags & CTL_LUN_INVALID) 13234 && TAILQ_EMPTY(&lun->ooa_queue)) { 13235 mtx_unlock(&lun->lun_lock); 13236 mtx_lock(&softc->ctl_lock); 13237 ctl_free_lun(lun); 13238 mtx_unlock(&softc->ctl_lock); 13239 } else 13240 mtx_unlock(&lun->lun_lock); 13241 13242bailout: 13243 13244 /* 13245 * If this command has been aborted, make sure we set the status 13246 * properly. The FETD is responsible for freeing the I/O and doing 13247 * whatever it needs to do to clean up its state. 13248 */ 13249 if (io->io_hdr.flags & CTL_FLAG_ABORT) 13250 ctl_set_task_aborted(&io->scsiio); 13251 13252 /* 13253 * If enabled, print command error status. 13254 */ 13255 if ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_SUCCESS && 13256 (ctl_debug & CTL_DEBUG_INFO) != 0) 13257 ctl_io_error_print(io, NULL); 13258 13259 /* 13260 * Tell the FETD or the other shelf controller we're done with this 13261 * command. Note that only SCSI commands get to this point. Task 13262 * management commands are completed above. 13263 */ 13264 if ((softc->ha_mode != CTL_HA_MODE_XFER) && 13265 (io->io_hdr.flags & CTL_FLAG_SENT_2OTHER_SC)) { 13266 memset(&msg, 0, sizeof(msg)); 13267 msg.hdr.msg_type = CTL_MSG_FINISH_IO; 13268 msg.hdr.serializing_sc = io->io_hdr.serializing_sc; 13269 msg.hdr.nexus = io->io_hdr.nexus; 13270 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, 13271 sizeof(msg.scsi) - sizeof(msg.scsi.sense_data), 13272 M_WAITOK); 13273 } 13274 if ((softc->ha_mode == CTL_HA_MODE_XFER) 13275 && (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)) { 13276 memset(&msg, 0, sizeof(msg)); 13277 msg.hdr.msg_type = CTL_MSG_FINISH_IO; 13278 msg.hdr.original_sc = io->io_hdr.original_sc; 13279 msg.hdr.nexus = io->io_hdr.nexus; 13280 msg.hdr.status = io->io_hdr.status; 13281 msg.scsi.scsi_status = io->scsiio.scsi_status; 13282 msg.scsi.tag_num = io->scsiio.tag_num; 13283 msg.scsi.tag_type = io->scsiio.tag_type; 13284 msg.scsi.sense_len = io->scsiio.sense_len; 13285 msg.scsi.sense_residual = io->scsiio.sense_residual; 13286 msg.scsi.residual = io->scsiio.residual; 13287 memcpy(&msg.scsi.sense_data, &io->scsiio.sense_data, 13288 io->scsiio.sense_len); 13289 13290 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, 13291 sizeof(msg.scsi) - sizeof(msg.scsi.sense_data) + 13292 msg.scsi.sense_len, M_WAITOK); 13293 ctl_free_io(io); 13294 } else 13295 fe_done(io); 13296 13297 return (CTL_RETVAL_COMPLETE); 13298} 13299 13300#ifdef CTL_WITH_CA 13301/* 13302 * Front end should call this if it doesn't do autosense. When the request 13303 * sense comes back in from the initiator, we'll dequeue this and send it. 13304 */ 13305int 13306ctl_queue_sense(union ctl_io *io) 13307{ 13308 struct ctl_lun *lun; 13309 struct ctl_port *port; 13310 struct ctl_softc *softc; 13311 uint32_t initidx, targ_lun; 13312 13313 softc = control_softc; 13314 13315 CTL_DEBUG_PRINT(("ctl_queue_sense\n")); 13316 13317 /* 13318 * LUN lookup will likely move to the ctl_work_thread() once we 13319 * have our new queueing infrastructure (that doesn't put things on 13320 * a per-LUN queue initially). That is so that we can handle 13321 * things like an INQUIRY to a LUN that we don't have enabled. We 13322 * can't deal with that right now. 13323 */ 13324 mtx_lock(&softc->ctl_lock); 13325 13326 /* 13327 * If we don't have a LUN for this, just toss the sense 13328 * information. 13329 */ 13330 port = ctl_io_port(&ctsio->io_hdr); 13331 targ_lun = ctl_lun_map_from_port(port, io->io_hdr.nexus.targ_lun); 13332 if ((targ_lun < CTL_MAX_LUNS) 13333 && (softc->ctl_luns[targ_lun] != NULL)) 13334 lun = softc->ctl_luns[targ_lun]; 13335 else 13336 goto bailout; 13337 13338 initidx = ctl_get_initindex(&io->io_hdr.nexus); 13339 13340 mtx_lock(&lun->lun_lock); 13341 /* 13342 * Already have CA set for this LUN...toss the sense information. 13343 */ 13344 if (ctl_is_set(lun->have_ca, initidx)) { 13345 mtx_unlock(&lun->lun_lock); 13346 goto bailout; 13347 } 13348 13349 memcpy(&lun->pending_sense[initidx], &io->scsiio.sense_data, 13350 MIN(sizeof(lun->pending_sense[initidx]), 13351 sizeof(io->scsiio.sense_data))); 13352 ctl_set_mask(lun->have_ca, initidx); 13353 mtx_unlock(&lun->lun_lock); 13354 13355bailout: 13356 mtx_unlock(&softc->ctl_lock); 13357 13358 ctl_free_io(io); 13359 13360 return (CTL_RETVAL_COMPLETE); 13361} 13362#endif 13363 13364/* 13365 * Primary command inlet from frontend ports. All SCSI and task I/O 13366 * requests must go through this function. 13367 */ 13368int 13369ctl_queue(union ctl_io *io) 13370{ 13371 struct ctl_port *port; 13372 13373 CTL_DEBUG_PRINT(("ctl_queue cdb[0]=%02X\n", io->scsiio.cdb[0])); 13374 13375#ifdef CTL_TIME_IO 13376 io->io_hdr.start_time = time_uptime; 13377 getbintime(&io->io_hdr.start_bt); 13378#endif /* CTL_TIME_IO */ 13379 13380 /* Map FE-specific LUN ID into global one. */ 13381 port = ctl_io_port(&io->io_hdr); 13382 io->io_hdr.nexus.targ_mapped_lun = 13383 ctl_lun_map_from_port(port, io->io_hdr.nexus.targ_lun); 13384 13385 switch (io->io_hdr.io_type) { 13386 case CTL_IO_SCSI: 13387 case CTL_IO_TASK: 13388 if (ctl_debug & CTL_DEBUG_CDB) 13389 ctl_io_print(io); 13390 ctl_enqueue_incoming(io); 13391 break; 13392 default: 13393 printf("ctl_queue: unknown I/O type %d\n", io->io_hdr.io_type); 13394 return (EINVAL); 13395 } 13396 13397 return (CTL_RETVAL_COMPLETE); 13398} 13399 13400#ifdef CTL_IO_DELAY 13401static void 13402ctl_done_timer_wakeup(void *arg) 13403{ 13404 union ctl_io *io; 13405 13406 io = (union ctl_io *)arg; 13407 ctl_done(io); 13408} 13409#endif /* CTL_IO_DELAY */ 13410 13411void 13412ctl_serseq_done(union ctl_io *io) 13413{ 13414 struct ctl_lun *lun; 13415 13416 lun = (struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 13417 if (lun->be_lun == NULL || 13418 lun->be_lun->serseq == CTL_LUN_SERSEQ_OFF) 13419 return; 13420 mtx_lock(&lun->lun_lock); 13421 io->io_hdr.flags |= CTL_FLAG_SERSEQ_DONE; 13422 ctl_check_blocked(lun); 13423 mtx_unlock(&lun->lun_lock); 13424} 13425 13426void 13427ctl_done(union ctl_io *io) 13428{ 13429 13430 /* 13431 * Enable this to catch duplicate completion issues. 13432 */ 13433#if 0 13434 if (io->io_hdr.flags & CTL_FLAG_ALREADY_DONE) { 13435 printf("%s: type %d msg %d cdb %x iptl: " 13436 "%u:%u:%u tag 0x%04x " 13437 "flag %#x status %x\n", 13438 __func__, 13439 io->io_hdr.io_type, 13440 io->io_hdr.msg_type, 13441 io->scsiio.cdb[0], 13442 io->io_hdr.nexus.initid, 13443 io->io_hdr.nexus.targ_port, 13444 io->io_hdr.nexus.targ_lun, 13445 (io->io_hdr.io_type == 13446 CTL_IO_TASK) ? 13447 io->taskio.tag_num : 13448 io->scsiio.tag_num, 13449 io->io_hdr.flags, 13450 io->io_hdr.status); 13451 } else 13452 io->io_hdr.flags |= CTL_FLAG_ALREADY_DONE; 13453#endif 13454 13455 /* 13456 * This is an internal copy of an I/O, and should not go through 13457 * the normal done processing logic. 13458 */ 13459 if (io->io_hdr.flags & CTL_FLAG_INT_COPY) 13460 return; 13461 13462#ifdef CTL_IO_DELAY 13463 if (io->io_hdr.flags & CTL_FLAG_DELAY_DONE) { 13464 struct ctl_lun *lun; 13465 13466 lun =(struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 13467 13468 io->io_hdr.flags &= ~CTL_FLAG_DELAY_DONE; 13469 } else { 13470 struct ctl_lun *lun; 13471 13472 lun =(struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 13473 13474 if ((lun != NULL) 13475 && (lun->delay_info.done_delay > 0)) { 13476 13477 callout_init(&io->io_hdr.delay_callout, /*mpsafe*/ 1); 13478 io->io_hdr.flags |= CTL_FLAG_DELAY_DONE; 13479 callout_reset(&io->io_hdr.delay_callout, 13480 lun->delay_info.done_delay * hz, 13481 ctl_done_timer_wakeup, io); 13482 if (lun->delay_info.done_type == CTL_DELAY_TYPE_ONESHOT) 13483 lun->delay_info.done_delay = 0; 13484 return; 13485 } 13486 } 13487#endif /* CTL_IO_DELAY */ 13488 13489 ctl_enqueue_done(io); 13490} 13491 13492static void 13493ctl_work_thread(void *arg) 13494{ 13495 struct ctl_thread *thr = (struct ctl_thread *)arg; 13496 struct ctl_softc *softc = thr->ctl_softc; 13497 union ctl_io *io; 13498 int retval; 13499 13500 CTL_DEBUG_PRINT(("ctl_work_thread starting\n")); 13501 13502 for (;;) { 13503 retval = 0; 13504 13505 /* 13506 * We handle the queues in this order: 13507 * - ISC 13508 * - done queue (to free up resources, unblock other commands) 13509 * - RtR queue 13510 * - incoming queue 13511 * 13512 * If those queues are empty, we break out of the loop and 13513 * go to sleep. 13514 */ 13515 mtx_lock(&thr->queue_lock); 13516 io = (union ctl_io *)STAILQ_FIRST(&thr->isc_queue); 13517 if (io != NULL) { 13518 STAILQ_REMOVE_HEAD(&thr->isc_queue, links); 13519 mtx_unlock(&thr->queue_lock); 13520 ctl_handle_isc(io); 13521 continue; 13522 } 13523 io = (union ctl_io *)STAILQ_FIRST(&thr->done_queue); 13524 if (io != NULL) { 13525 STAILQ_REMOVE_HEAD(&thr->done_queue, links); 13526 /* clear any blocked commands, call fe_done */ 13527 mtx_unlock(&thr->queue_lock); 13528 retval = ctl_process_done(io); 13529 continue; 13530 } 13531 io = (union ctl_io *)STAILQ_FIRST(&thr->incoming_queue); 13532 if (io != NULL) { 13533 STAILQ_REMOVE_HEAD(&thr->incoming_queue, links); 13534 mtx_unlock(&thr->queue_lock); 13535 if (io->io_hdr.io_type == CTL_IO_TASK) 13536 ctl_run_task(io); 13537 else 13538 ctl_scsiio_precheck(softc, &io->scsiio); 13539 continue; 13540 } 13541 io = (union ctl_io *)STAILQ_FIRST(&thr->rtr_queue); 13542 if (io != NULL) { 13543 STAILQ_REMOVE_HEAD(&thr->rtr_queue, links); 13544 mtx_unlock(&thr->queue_lock); 13545 retval = ctl_scsiio(&io->scsiio); 13546 if (retval != CTL_RETVAL_COMPLETE) 13547 CTL_DEBUG_PRINT(("ctl_scsiio failed\n")); 13548 continue; 13549 } 13550 13551 /* Sleep until we have something to do. */ 13552 mtx_sleep(thr, &thr->queue_lock, PDROP | PRIBIO, "-", 0); 13553 } 13554} 13555 13556static void 13557ctl_lun_thread(void *arg) 13558{ 13559 struct ctl_softc *softc = (struct ctl_softc *)arg; 13560 struct ctl_be_lun *be_lun; 13561 int retval; 13562 13563 CTL_DEBUG_PRINT(("ctl_lun_thread starting\n")); 13564 13565 for (;;) { 13566 retval = 0; 13567 mtx_lock(&softc->ctl_lock); 13568 be_lun = STAILQ_FIRST(&softc->pending_lun_queue); 13569 if (be_lun != NULL) { 13570 STAILQ_REMOVE_HEAD(&softc->pending_lun_queue, links); 13571 mtx_unlock(&softc->ctl_lock); 13572 ctl_create_lun(be_lun); 13573 continue; 13574 } 13575 13576 /* Sleep until we have something to do. */ 13577 mtx_sleep(&softc->pending_lun_queue, &softc->ctl_lock, 13578 PDROP | PRIBIO, "-", 0); 13579 } 13580} 13581 13582static void 13583ctl_thresh_thread(void *arg) 13584{ 13585 struct ctl_softc *softc = (struct ctl_softc *)arg; 13586 struct ctl_lun *lun; 13587 struct ctl_be_lun *be_lun; 13588 struct scsi_da_rw_recovery_page *rwpage; 13589 struct ctl_logical_block_provisioning_page *page; 13590 const char *attr; 13591 union ctl_ha_msg msg; 13592 uint64_t thres, val; 13593 int i, e, set; 13594 13595 CTL_DEBUG_PRINT(("ctl_thresh_thread starting\n")); 13596 13597 for (;;) { 13598 mtx_lock(&softc->ctl_lock); 13599 STAILQ_FOREACH(lun, &softc->lun_list, links) { 13600 be_lun = lun->be_lun; 13601 if ((lun->flags & CTL_LUN_DISABLED) || 13602 (lun->flags & CTL_LUN_OFFLINE) || 13603 lun->backend->lun_attr == NULL) 13604 continue; 13605 if ((lun->flags & CTL_LUN_PRIMARY_SC) == 0 && 13606 softc->ha_mode == CTL_HA_MODE_XFER) 13607 continue; 13608 rwpage = &lun->mode_pages.rw_er_page[CTL_PAGE_CURRENT]; 13609 if ((rwpage->byte8 & SMS_RWER_LBPERE) == 0) 13610 continue; 13611 e = 0; 13612 page = &lun->mode_pages.lbp_page[CTL_PAGE_CURRENT]; 13613 for (i = 0; i < CTL_NUM_LBP_THRESH; i++) { 13614 if ((page->descr[i].flags & SLBPPD_ENABLED) == 0) 13615 continue; 13616 thres = scsi_4btoul(page->descr[i].count); 13617 thres <<= CTL_LBP_EXPONENT; 13618 switch (page->descr[i].resource) { 13619 case 0x01: 13620 attr = "blocksavail"; 13621 break; 13622 case 0x02: 13623 attr = "blocksused"; 13624 break; 13625 case 0xf1: 13626 attr = "poolblocksavail"; 13627 break; 13628 case 0xf2: 13629 attr = "poolblocksused"; 13630 break; 13631 default: 13632 continue; 13633 } 13634 mtx_unlock(&softc->ctl_lock); // XXX 13635 val = lun->backend->lun_attr( 13636 lun->be_lun->be_lun, attr); 13637 mtx_lock(&softc->ctl_lock); 13638 if (val == UINT64_MAX) 13639 continue; 13640 if ((page->descr[i].flags & SLBPPD_ARMING_MASK) 13641 == SLBPPD_ARMING_INC) 13642 e = (val >= thres); 13643 else 13644 e = (val <= thres); 13645 if (e) 13646 break; 13647 } 13648 mtx_lock(&lun->lun_lock); 13649 if (e) { 13650 scsi_u64to8b((uint8_t *)&page->descr[i] - 13651 (uint8_t *)page, lun->ua_tpt_info); 13652 if (lun->lasttpt == 0 || 13653 time_uptime - lun->lasttpt >= CTL_LBP_UA_PERIOD) { 13654 lun->lasttpt = time_uptime; 13655 ctl_est_ua_all(lun, -1, CTL_UA_THIN_PROV_THRES); 13656 set = 1; 13657 } else 13658 set = 0; 13659 } else { 13660 lun->lasttpt = 0; 13661 ctl_clr_ua_all(lun, -1, CTL_UA_THIN_PROV_THRES); 13662 set = -1; 13663 } 13664 mtx_unlock(&lun->lun_lock); 13665 if (set != 0 && 13666 lun->ctl_softc->ha_mode == CTL_HA_MODE_XFER) { 13667 /* Send msg to other side. */ 13668 bzero(&msg.ua, sizeof(msg.ua)); 13669 msg.hdr.msg_type = CTL_MSG_UA; 13670 msg.hdr.nexus.initid = -1; 13671 msg.hdr.nexus.targ_port = -1; 13672 msg.hdr.nexus.targ_lun = lun->lun; 13673 msg.hdr.nexus.targ_mapped_lun = lun->lun; 13674 msg.ua.ua_all = 1; 13675 msg.ua.ua_set = (set > 0); 13676 msg.ua.ua_type = CTL_UA_THIN_PROV_THRES; 13677 memcpy(msg.ua.ua_info, lun->ua_tpt_info, 8); 13678 mtx_unlock(&softc->ctl_lock); // XXX 13679 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, 13680 sizeof(msg.ua), M_WAITOK); 13681 mtx_lock(&softc->ctl_lock); 13682 } 13683 } 13684 mtx_unlock(&softc->ctl_lock); 13685 pause("-", CTL_LBP_PERIOD * hz); 13686 } 13687} 13688 13689static void 13690ctl_enqueue_incoming(union ctl_io *io) 13691{ 13692 struct ctl_softc *softc = control_softc; 13693 struct ctl_thread *thr; 13694 u_int idx; 13695 13696 idx = (io->io_hdr.nexus.targ_port * 127 + 13697 io->io_hdr.nexus.initid) % worker_threads; 13698 thr = &softc->threads[idx]; 13699 mtx_lock(&thr->queue_lock); 13700 STAILQ_INSERT_TAIL(&thr->incoming_queue, &io->io_hdr, links); 13701 mtx_unlock(&thr->queue_lock); 13702 wakeup(thr); 13703} 13704 13705static void 13706ctl_enqueue_rtr(union ctl_io *io) 13707{ 13708 struct ctl_softc *softc = control_softc; 13709 struct ctl_thread *thr; 13710 13711 thr = &softc->threads[io->io_hdr.nexus.targ_mapped_lun % worker_threads]; 13712 mtx_lock(&thr->queue_lock); 13713 STAILQ_INSERT_TAIL(&thr->rtr_queue, &io->io_hdr, links); 13714 mtx_unlock(&thr->queue_lock); 13715 wakeup(thr); 13716} 13717 13718static void 13719ctl_enqueue_done(union ctl_io *io) 13720{ 13721 struct ctl_softc *softc = control_softc; 13722 struct ctl_thread *thr; 13723 13724 thr = &softc->threads[io->io_hdr.nexus.targ_mapped_lun % worker_threads]; 13725 mtx_lock(&thr->queue_lock); 13726 STAILQ_INSERT_TAIL(&thr->done_queue, &io->io_hdr, links); 13727 mtx_unlock(&thr->queue_lock); 13728 wakeup(thr); 13729} 13730 13731static void 13732ctl_enqueue_isc(union ctl_io *io) 13733{ 13734 struct ctl_softc *softc = control_softc; 13735 struct ctl_thread *thr; 13736 13737 thr = &softc->threads[io->io_hdr.nexus.targ_mapped_lun % worker_threads]; 13738 mtx_lock(&thr->queue_lock); 13739 STAILQ_INSERT_TAIL(&thr->isc_queue, &io->io_hdr, links); 13740 mtx_unlock(&thr->queue_lock); 13741 wakeup(thr); 13742} 13743 13744/* 13745 * vim: ts=8 13746 */ 13747