ctl.c revision 288765
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 288765 2015-10-05 09:26:52Z 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 264const static struct scsi_info_exceptions_page ie_page_default = { 265 /*page_code*/SMS_INFO_EXCEPTIONS_PAGE, 266 /*page_length*/sizeof(struct scsi_info_exceptions_page) - 2, 267 /*info_flags*/SIEP_FLAGS_DEXCPT, 268 /*mrie*/0, 269 /*interval_timer*/{0, 0, 0, 0}, 270 /*report_count*/{0, 0, 0, 0} 271}; 272 273const static struct scsi_info_exceptions_page ie_page_changeable = { 274 /*page_code*/SMS_INFO_EXCEPTIONS_PAGE, 275 /*page_length*/sizeof(struct scsi_info_exceptions_page) - 2, 276 /*info_flags*/0, 277 /*mrie*/0, 278 /*interval_timer*/{0, 0, 0, 0}, 279 /*report_count*/{0, 0, 0, 0} 280}; 281 282#define CTL_LBPM_LEN (sizeof(struct ctl_logical_block_provisioning_page) - 4) 283 284const static struct ctl_logical_block_provisioning_page lbp_page_default = {{ 285 /*page_code*/SMS_INFO_EXCEPTIONS_PAGE | SMPH_SPF, 286 /*subpage_code*/0x02, 287 /*page_length*/{CTL_LBPM_LEN >> 8, CTL_LBPM_LEN}, 288 /*flags*/0, 289 /*reserved*/{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}, 290 /*descr*/{}}, 291 {{/*flags*/0, 292 /*resource*/0x01, 293 /*reserved*/{0, 0}, 294 /*count*/{0, 0, 0, 0}}, 295 {/*flags*/0, 296 /*resource*/0x02, 297 /*reserved*/{0, 0}, 298 /*count*/{0, 0, 0, 0}}, 299 {/*flags*/0, 300 /*resource*/0xf1, 301 /*reserved*/{0, 0}, 302 /*count*/{0, 0, 0, 0}}, 303 {/*flags*/0, 304 /*resource*/0xf2, 305 /*reserved*/{0, 0}, 306 /*count*/{0, 0, 0, 0}} 307 } 308}; 309 310const static struct ctl_logical_block_provisioning_page lbp_page_changeable = {{ 311 /*page_code*/SMS_INFO_EXCEPTIONS_PAGE | SMPH_SPF, 312 /*subpage_code*/0x02, 313 /*page_length*/{CTL_LBPM_LEN >> 8, CTL_LBPM_LEN}, 314 /*flags*/0, 315 /*reserved*/{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}, 316 /*descr*/{}}, 317 {{/*flags*/0, 318 /*resource*/0, 319 /*reserved*/{0, 0}, 320 /*count*/{0, 0, 0, 0}}, 321 {/*flags*/0, 322 /*resource*/0, 323 /*reserved*/{0, 0}, 324 /*count*/{0, 0, 0, 0}}, 325 {/*flags*/0, 326 /*resource*/0, 327 /*reserved*/{0, 0}, 328 /*count*/{0, 0, 0, 0}}, 329 {/*flags*/0, 330 /*resource*/0, 331 /*reserved*/{0, 0}, 332 /*count*/{0, 0, 0, 0}} 333 } 334}; 335 336SYSCTL_NODE(_kern_cam, OID_AUTO, ctl, CTLFLAG_RD, 0, "CAM Target Layer"); 337static int worker_threads = -1; 338TUNABLE_INT("kern.cam.ctl.worker_threads", &worker_threads); 339SYSCTL_INT(_kern_cam_ctl, OID_AUTO, worker_threads, CTLFLAG_RDTUN, 340 &worker_threads, 1, "Number of worker threads"); 341static int ctl_debug = CTL_DEBUG_NONE; 342TUNABLE_INT("kern.cam.ctl.debug", &ctl_debug); 343SYSCTL_INT(_kern_cam_ctl, OID_AUTO, debug, CTLFLAG_RWTUN, 344 &ctl_debug, 0, "Enabled debug flags"); 345 346/* 347 * Supported pages (0x00), Serial number (0x80), Device ID (0x83), 348 * Extended INQUIRY Data (0x86), Mode Page Policy (0x87), 349 * SCSI Ports (0x88), Third-party Copy (0x8F), Block limits (0xB0), 350 * Block Device Characteristics (0xB1) and Logical Block Provisioning (0xB2) 351 */ 352#define SCSI_EVPD_NUM_SUPPORTED_PAGES 10 353 354static void ctl_isc_event_handler(ctl_ha_channel chanel, ctl_ha_event event, 355 int param); 356static void ctl_copy_sense_data(union ctl_ha_msg *src, union ctl_io *dest); 357static void ctl_copy_sense_data_back(union ctl_io *src, union ctl_ha_msg *dest); 358static int ctl_init(void); 359void ctl_shutdown(void); 360static int ctl_open(struct cdev *dev, int flags, int fmt, struct thread *td); 361static int ctl_close(struct cdev *dev, int flags, int fmt, struct thread *td); 362static int ctl_serialize_other_sc_cmd(struct ctl_scsiio *ctsio); 363static int ctl_ioctl_fill_ooa(struct ctl_lun *lun, uint32_t *cur_fill_num, 364 struct ctl_ooa *ooa_hdr, 365 struct ctl_ooa_entry *kern_entries); 366static int ctl_ioctl(struct cdev *dev, u_long cmd, caddr_t addr, int flag, 367 struct thread *td); 368static int ctl_alloc_lun(struct ctl_softc *ctl_softc, struct ctl_lun *lun, 369 struct ctl_be_lun *be_lun); 370static int ctl_free_lun(struct ctl_lun *lun); 371static void ctl_create_lun(struct ctl_be_lun *be_lun); 372static struct ctl_port * ctl_io_port(struct ctl_io_hdr *io_hdr); 373 374static int ctl_do_mode_select(union ctl_io *io); 375static int ctl_pro_preempt(struct ctl_softc *softc, struct ctl_lun *lun, 376 uint64_t res_key, uint64_t sa_res_key, 377 uint8_t type, uint32_t residx, 378 struct ctl_scsiio *ctsio, 379 struct scsi_per_res_out *cdb, 380 struct scsi_per_res_out_parms* param); 381static void ctl_pro_preempt_other(struct ctl_lun *lun, 382 union ctl_ha_msg *msg); 383static void ctl_hndl_per_res_out_on_other_sc(union ctl_ha_msg *msg); 384static int ctl_inquiry_evpd_supported(struct ctl_scsiio *ctsio, int alloc_len); 385static int ctl_inquiry_evpd_serial(struct ctl_scsiio *ctsio, int alloc_len); 386static int ctl_inquiry_evpd_devid(struct ctl_scsiio *ctsio, int alloc_len); 387static int ctl_inquiry_evpd_eid(struct ctl_scsiio *ctsio, int alloc_len); 388static int ctl_inquiry_evpd_mpp(struct ctl_scsiio *ctsio, int alloc_len); 389static int ctl_inquiry_evpd_scsi_ports(struct ctl_scsiio *ctsio, 390 int alloc_len); 391static int ctl_inquiry_evpd_block_limits(struct ctl_scsiio *ctsio, 392 int alloc_len); 393static int ctl_inquiry_evpd_bdc(struct ctl_scsiio *ctsio, int alloc_len); 394static int ctl_inquiry_evpd_lbp(struct ctl_scsiio *ctsio, int alloc_len); 395static int ctl_inquiry_evpd(struct ctl_scsiio *ctsio); 396static int ctl_inquiry_std(struct ctl_scsiio *ctsio); 397static int ctl_get_lba_len(union ctl_io *io, uint64_t *lba, uint64_t *len); 398static ctl_action ctl_extent_check(union ctl_io *io1, union ctl_io *io2, 399 bool seq); 400static ctl_action ctl_extent_check_seq(union ctl_io *io1, union ctl_io *io2); 401static ctl_action ctl_check_for_blockage(struct ctl_lun *lun, 402 union ctl_io *pending_io, union ctl_io *ooa_io); 403static ctl_action ctl_check_ooa(struct ctl_lun *lun, union ctl_io *pending_io, 404 union ctl_io *starting_io); 405static int ctl_check_blocked(struct ctl_lun *lun); 406static int ctl_scsiio_lun_check(struct ctl_lun *lun, 407 const struct ctl_cmd_entry *entry, 408 struct ctl_scsiio *ctsio); 409static void ctl_failover_lun(struct ctl_lun *lun); 410static int ctl_scsiio_precheck(struct ctl_softc *ctl_softc, 411 struct ctl_scsiio *ctsio); 412static int ctl_scsiio(struct ctl_scsiio *ctsio); 413 414static int ctl_bus_reset(struct ctl_softc *ctl_softc, union ctl_io *io); 415static int ctl_target_reset(struct ctl_softc *ctl_softc, union ctl_io *io, 416 ctl_ua_type ua_type); 417static int ctl_do_lun_reset(struct ctl_lun *lun, union ctl_io *io, 418 ctl_ua_type ua_type); 419static int ctl_lun_reset(struct ctl_softc *ctl_softc, union ctl_io *io); 420static int ctl_abort_task(union ctl_io *io); 421static int ctl_abort_task_set(union ctl_io *io); 422static int ctl_query_task(union ctl_io *io, int task_set); 423static int ctl_i_t_nexus_reset(union ctl_io *io); 424static int ctl_query_async_event(union ctl_io *io); 425static void ctl_run_task(union ctl_io *io); 426#ifdef CTL_IO_DELAY 427static void ctl_datamove_timer_wakeup(void *arg); 428static void ctl_done_timer_wakeup(void *arg); 429#endif /* CTL_IO_DELAY */ 430 431static void ctl_send_datamove_done(union ctl_io *io, int have_lock); 432static void ctl_datamove_remote_write_cb(struct ctl_ha_dt_req *rq); 433static int ctl_datamove_remote_dm_write_cb(union ctl_io *io); 434static void ctl_datamove_remote_write(union ctl_io *io); 435static int ctl_datamove_remote_dm_read_cb(union ctl_io *io); 436static void ctl_datamove_remote_read_cb(struct ctl_ha_dt_req *rq); 437static int ctl_datamove_remote_sgl_setup(union ctl_io *io); 438static int ctl_datamove_remote_xfer(union ctl_io *io, unsigned command, 439 ctl_ha_dt_cb callback); 440static void ctl_datamove_remote_read(union ctl_io *io); 441static void ctl_datamove_remote(union ctl_io *io); 442static int ctl_process_done(union ctl_io *io); 443static void ctl_lun_thread(void *arg); 444static void ctl_thresh_thread(void *arg); 445static void ctl_work_thread(void *arg); 446static void ctl_enqueue_incoming(union ctl_io *io); 447static void ctl_enqueue_rtr(union ctl_io *io); 448static void ctl_enqueue_done(union ctl_io *io); 449static void ctl_enqueue_isc(union ctl_io *io); 450static const struct ctl_cmd_entry * 451 ctl_get_cmd_entry(struct ctl_scsiio *ctsio, int *sa); 452static const struct ctl_cmd_entry * 453 ctl_validate_command(struct ctl_scsiio *ctsio); 454static int ctl_cmd_applicable(uint8_t lun_type, 455 const struct ctl_cmd_entry *entry); 456 457static uint64_t ctl_get_prkey(struct ctl_lun *lun, uint32_t residx); 458static void ctl_clr_prkey(struct ctl_lun *lun, uint32_t residx); 459static void ctl_alloc_prkey(struct ctl_lun *lun, uint32_t residx); 460static void ctl_set_prkey(struct ctl_lun *lun, uint32_t residx, uint64_t key); 461 462/* 463 * Load the serialization table. This isn't very pretty, but is probably 464 * the easiest way to do it. 465 */ 466#include "ctl_ser_table.c" 467 468/* 469 * We only need to define open, close and ioctl routines for this driver. 470 */ 471static struct cdevsw ctl_cdevsw = { 472 .d_version = D_VERSION, 473 .d_flags = 0, 474 .d_open = ctl_open, 475 .d_close = ctl_close, 476 .d_ioctl = ctl_ioctl, 477 .d_name = "ctl", 478}; 479 480 481MALLOC_DEFINE(M_CTL, "ctlmem", "Memory used for CTL"); 482 483static int ctl_module_event_handler(module_t, int /*modeventtype_t*/, void *); 484 485static moduledata_t ctl_moduledata = { 486 "ctl", 487 ctl_module_event_handler, 488 NULL 489}; 490 491DECLARE_MODULE(ctl, ctl_moduledata, SI_SUB_CONFIGURE, SI_ORDER_THIRD); 492MODULE_VERSION(ctl, 1); 493 494static struct ctl_frontend ha_frontend = 495{ 496 .name = "ha", 497}; 498 499static void 500ctl_isc_handler_finish_xfer(struct ctl_softc *ctl_softc, 501 union ctl_ha_msg *msg_info) 502{ 503 struct ctl_scsiio *ctsio; 504 505 if (msg_info->hdr.original_sc == NULL) { 506 printf("%s: original_sc == NULL!\n", __func__); 507 /* XXX KDM now what? */ 508 return; 509 } 510 511 ctsio = &msg_info->hdr.original_sc->scsiio; 512 ctsio->io_hdr.flags |= CTL_FLAG_IO_ACTIVE; 513 ctsio->io_hdr.msg_type = CTL_MSG_FINISH_IO; 514 ctsio->io_hdr.status = msg_info->hdr.status; 515 ctsio->scsi_status = msg_info->scsi.scsi_status; 516 ctsio->sense_len = msg_info->scsi.sense_len; 517 ctsio->sense_residual = msg_info->scsi.sense_residual; 518 ctsio->residual = msg_info->scsi.residual; 519 memcpy(&ctsio->sense_data, &msg_info->scsi.sense_data, 520 msg_info->scsi.sense_len); 521 ctl_enqueue_isc((union ctl_io *)ctsio); 522} 523 524static void 525ctl_isc_handler_finish_ser_only(struct ctl_softc *ctl_softc, 526 union ctl_ha_msg *msg_info) 527{ 528 struct ctl_scsiio *ctsio; 529 530 if (msg_info->hdr.serializing_sc == NULL) { 531 printf("%s: serializing_sc == NULL!\n", __func__); 532 /* XXX KDM now what? */ 533 return; 534 } 535 536 ctsio = &msg_info->hdr.serializing_sc->scsiio; 537 ctsio->io_hdr.msg_type = CTL_MSG_FINISH_IO; 538 ctl_enqueue_isc((union ctl_io *)ctsio); 539} 540 541void 542ctl_isc_announce_lun(struct ctl_lun *lun) 543{ 544 struct ctl_softc *softc = lun->ctl_softc; 545 union ctl_ha_msg *msg; 546 struct ctl_ha_msg_lun_pr_key pr_key; 547 int i, k; 548 549 if (softc->ha_link != CTL_HA_LINK_ONLINE) 550 return; 551 mtx_lock(&lun->lun_lock); 552 i = sizeof(msg->lun); 553 if (lun->lun_devid) 554 i += lun->lun_devid->len; 555 i += sizeof(pr_key) * lun->pr_key_count; 556alloc: 557 mtx_unlock(&lun->lun_lock); 558 msg = malloc(i, M_CTL, M_WAITOK); 559 mtx_lock(&lun->lun_lock); 560 k = sizeof(msg->lun); 561 if (lun->lun_devid) 562 k += lun->lun_devid->len; 563 k += sizeof(pr_key) * lun->pr_key_count; 564 if (i < k) { 565 free(msg, M_CTL); 566 i = k; 567 goto alloc; 568 } 569 bzero(&msg->lun, sizeof(msg->lun)); 570 msg->hdr.msg_type = CTL_MSG_LUN_SYNC; 571 msg->hdr.nexus.targ_lun = lun->lun; 572 msg->hdr.nexus.targ_mapped_lun = lun->lun; 573 msg->lun.flags = lun->flags; 574 msg->lun.pr_generation = lun->PRGeneration; 575 msg->lun.pr_res_idx = lun->pr_res_idx; 576 msg->lun.pr_res_type = lun->res_type; 577 msg->lun.pr_key_count = lun->pr_key_count; 578 i = 0; 579 if (lun->lun_devid) { 580 msg->lun.lun_devid_len = lun->lun_devid->len; 581 memcpy(&msg->lun.data[i], lun->lun_devid->data, 582 msg->lun.lun_devid_len); 583 i += msg->lun.lun_devid_len; 584 } 585 for (k = 0; k < CTL_MAX_INITIATORS; k++) { 586 if ((pr_key.pr_key = ctl_get_prkey(lun, k)) == 0) 587 continue; 588 pr_key.pr_iid = k; 589 memcpy(&msg->lun.data[i], &pr_key, sizeof(pr_key)); 590 i += sizeof(pr_key); 591 } 592 mtx_unlock(&lun->lun_lock); 593 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg->port, sizeof(msg->port) + i, 594 M_WAITOK); 595 free(msg, M_CTL); 596} 597 598void 599ctl_isc_announce_port(struct ctl_port *port) 600{ 601 struct ctl_softc *softc = control_softc; 602 union ctl_ha_msg *msg; 603 int i; 604 605 if (port->targ_port < softc->port_min || 606 port->targ_port >= softc->port_max || 607 softc->ha_link != CTL_HA_LINK_ONLINE) 608 return; 609 i = sizeof(msg->port) + strlen(port->port_name) + 1; 610 if (port->lun_map) 611 i += sizeof(uint32_t) * CTL_MAX_LUNS; 612 if (port->port_devid) 613 i += port->port_devid->len; 614 if (port->target_devid) 615 i += port->target_devid->len; 616 msg = malloc(i, M_CTL, M_WAITOK); 617 bzero(&msg->port, sizeof(msg->port)); 618 msg->hdr.msg_type = CTL_MSG_PORT_SYNC; 619 msg->hdr.nexus.targ_port = port->targ_port; 620 msg->port.port_type = port->port_type; 621 msg->port.physical_port = port->physical_port; 622 msg->port.virtual_port = port->virtual_port; 623 msg->port.status = port->status; 624 i = 0; 625 msg->port.name_len = sprintf(&msg->port.data[i], 626 "%d:%s", softc->ha_id, port->port_name) + 1; 627 i += msg->port.name_len; 628 if (port->lun_map) { 629 msg->port.lun_map_len = sizeof(uint32_t) * CTL_MAX_LUNS; 630 memcpy(&msg->port.data[i], port->lun_map, 631 msg->port.lun_map_len); 632 i += msg->port.lun_map_len; 633 } 634 if (port->port_devid) { 635 msg->port.port_devid_len = port->port_devid->len; 636 memcpy(&msg->port.data[i], port->port_devid->data, 637 msg->port.port_devid_len); 638 i += msg->port.port_devid_len; 639 } 640 if (port->target_devid) { 641 msg->port.target_devid_len = port->target_devid->len; 642 memcpy(&msg->port.data[i], port->target_devid->data, 643 msg->port.target_devid_len); 644 i += msg->port.target_devid_len; 645 } 646 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg->port, sizeof(msg->port) + i, 647 M_WAITOK); 648 free(msg, M_CTL); 649} 650 651static void 652ctl_isc_ha_link_up(struct ctl_softc *softc) 653{ 654 struct ctl_port *port; 655 struct ctl_lun *lun; 656 657 STAILQ_FOREACH(port, &softc->port_list, links) 658 ctl_isc_announce_port(port); 659 STAILQ_FOREACH(lun, &softc->lun_list, links) 660 ctl_isc_announce_lun(lun); 661} 662 663static void 664ctl_isc_ha_link_down(struct ctl_softc *softc) 665{ 666 struct ctl_port *port; 667 struct ctl_lun *lun; 668 union ctl_io *io; 669 670 mtx_lock(&softc->ctl_lock); 671 STAILQ_FOREACH(lun, &softc->lun_list, links) { 672 mtx_lock(&lun->lun_lock); 673 if (lun->flags & CTL_LUN_PEER_SC_PRIMARY) { 674 lun->flags &= ~CTL_LUN_PEER_SC_PRIMARY; 675 ctl_est_ua_all(lun, -1, CTL_UA_ASYM_ACC_CHANGE); 676 } 677 mtx_unlock(&lun->lun_lock); 678 679 mtx_unlock(&softc->ctl_lock); 680 io = ctl_alloc_io(softc->othersc_pool); 681 mtx_lock(&softc->ctl_lock); 682 ctl_zero_io(io); 683 io->io_hdr.msg_type = CTL_MSG_FAILOVER; 684 io->io_hdr.nexus.targ_mapped_lun = lun->lun; 685 ctl_enqueue_isc(io); 686 } 687 688 STAILQ_FOREACH(port, &softc->port_list, links) { 689 if (port->targ_port >= softc->port_min && 690 port->targ_port < softc->port_max) 691 continue; 692 port->status &= ~CTL_PORT_STATUS_ONLINE; 693 } 694 mtx_unlock(&softc->ctl_lock); 695} 696 697static void 698ctl_isc_ua(struct ctl_softc *softc, union ctl_ha_msg *msg, int len) 699{ 700 struct ctl_lun *lun; 701 uint32_t iid = ctl_get_initindex(&msg->hdr.nexus); 702 703 mtx_lock(&softc->ctl_lock); 704 if (msg->hdr.nexus.targ_lun < CTL_MAX_LUNS && 705 (lun = softc->ctl_luns[msg->hdr.nexus.targ_mapped_lun]) != NULL) { 706 mtx_lock(&lun->lun_lock); 707 mtx_unlock(&softc->ctl_lock); 708 if (msg->ua.ua_all) { 709 if (msg->ua.ua_set) 710 ctl_est_ua_all(lun, iid, msg->ua.ua_type); 711 else 712 ctl_clr_ua_all(lun, iid, msg->ua.ua_type); 713 } else { 714 if (msg->ua.ua_set) 715 ctl_est_ua(lun, iid, msg->ua.ua_type); 716 else 717 ctl_clr_ua(lun, iid, msg->ua.ua_type); 718 } 719 mtx_unlock(&lun->lun_lock); 720 } else 721 mtx_unlock(&softc->ctl_lock); 722} 723 724static void 725ctl_isc_lun_sync(struct ctl_softc *softc, union ctl_ha_msg *msg, int len) 726{ 727 struct ctl_lun *lun; 728 struct ctl_ha_msg_lun_pr_key pr_key; 729 int i, k; 730 ctl_lun_flags oflags; 731 uint32_t targ_lun; 732 733 targ_lun = msg->hdr.nexus.targ_mapped_lun; 734 mtx_lock(&softc->ctl_lock); 735 if ((targ_lun >= CTL_MAX_LUNS) || 736 ((lun = softc->ctl_luns[targ_lun]) == NULL)) { 737 mtx_unlock(&softc->ctl_lock); 738 return; 739 } 740 mtx_lock(&lun->lun_lock); 741 mtx_unlock(&softc->ctl_lock); 742 if (lun->flags & CTL_LUN_DISABLED) { 743 mtx_unlock(&lun->lun_lock); 744 return; 745 } 746 i = (lun->lun_devid != NULL) ? lun->lun_devid->len : 0; 747 if (msg->lun.lun_devid_len != i || (i > 0 && 748 memcmp(&msg->lun.data[0], lun->lun_devid->data, i) != 0)) { 749 mtx_unlock(&lun->lun_lock); 750 printf("%s: Received conflicting HA LUN %d\n", 751 __func__, msg->hdr.nexus.targ_lun); 752 return; 753 } else { 754 /* Record whether peer is primary. */ 755 oflags = lun->flags; 756 if ((msg->lun.flags & CTL_LUN_PRIMARY_SC) && 757 (msg->lun.flags & CTL_LUN_DISABLED) == 0) 758 lun->flags |= CTL_LUN_PEER_SC_PRIMARY; 759 else 760 lun->flags &= ~CTL_LUN_PEER_SC_PRIMARY; 761 if (oflags != lun->flags) 762 ctl_est_ua_all(lun, -1, CTL_UA_ASYM_ACC_CHANGE); 763 764 /* If peer is primary and we are not -- use data */ 765 if ((lun->flags & CTL_LUN_PRIMARY_SC) == 0 && 766 (lun->flags & CTL_LUN_PEER_SC_PRIMARY)) { 767 lun->PRGeneration = msg->lun.pr_generation; 768 lun->pr_res_idx = msg->lun.pr_res_idx; 769 lun->res_type = msg->lun.pr_res_type; 770 lun->pr_key_count = msg->lun.pr_key_count; 771 for (k = 0; k < CTL_MAX_INITIATORS; k++) 772 ctl_clr_prkey(lun, k); 773 for (k = 0; k < msg->lun.pr_key_count; k++) { 774 memcpy(&pr_key, &msg->lun.data[i], 775 sizeof(pr_key)); 776 ctl_alloc_prkey(lun, pr_key.pr_iid); 777 ctl_set_prkey(lun, pr_key.pr_iid, 778 pr_key.pr_key); 779 i += sizeof(pr_key); 780 } 781 } 782 783 mtx_unlock(&lun->lun_lock); 784 CTL_DEBUG_PRINT(("%s: Known LUN %d, peer is %s\n", 785 __func__, msg->hdr.nexus.targ_lun, 786 (msg->lun.flags & CTL_LUN_PRIMARY_SC) ? 787 "primary" : "secondary")); 788 789 /* If we are primary but peer doesn't know -- notify */ 790 if ((lun->flags & CTL_LUN_PRIMARY_SC) && 791 (msg->lun.flags & CTL_LUN_PEER_SC_PRIMARY) == 0) 792 ctl_isc_announce_lun(lun); 793 } 794} 795 796static void 797ctl_isc_port_sync(struct ctl_softc *softc, union ctl_ha_msg *msg, int len) 798{ 799 struct ctl_port *port; 800 struct ctl_lun *lun; 801 int i, new; 802 803 port = softc->ctl_ports[msg->hdr.nexus.targ_port]; 804 if (port == NULL) { 805 CTL_DEBUG_PRINT(("%s: New port %d\n", __func__, 806 msg->hdr.nexus.targ_port)); 807 new = 1; 808 port = malloc(sizeof(*port), M_CTL, M_WAITOK | M_ZERO); 809 port->frontend = &ha_frontend; 810 port->targ_port = msg->hdr.nexus.targ_port; 811 } else if (port->frontend == &ha_frontend) { 812 CTL_DEBUG_PRINT(("%s: Updated port %d\n", __func__, 813 msg->hdr.nexus.targ_port)); 814 new = 0; 815 } else { 816 printf("%s: Received conflicting HA port %d\n", 817 __func__, msg->hdr.nexus.targ_port); 818 return; 819 } 820 port->port_type = msg->port.port_type; 821 port->physical_port = msg->port.physical_port; 822 port->virtual_port = msg->port.virtual_port; 823 port->status = msg->port.status; 824 i = 0; 825 free(port->port_name, M_CTL); 826 port->port_name = strndup(&msg->port.data[i], msg->port.name_len, 827 M_CTL); 828 i += msg->port.name_len; 829 if (msg->port.lun_map_len != 0) { 830 if (port->lun_map == NULL) 831 port->lun_map = malloc(sizeof(uint32_t) * CTL_MAX_LUNS, 832 M_CTL, M_WAITOK); 833 memcpy(port->lun_map, &msg->port.data[i], 834 sizeof(uint32_t) * CTL_MAX_LUNS); 835 i += msg->port.lun_map_len; 836 } else { 837 free(port->lun_map, M_CTL); 838 port->lun_map = NULL; 839 } 840 if (msg->port.port_devid_len != 0) { 841 if (port->port_devid == NULL || 842 port->port_devid->len != msg->port.port_devid_len) { 843 free(port->port_devid, M_CTL); 844 port->port_devid = malloc(sizeof(struct ctl_devid) + 845 msg->port.port_devid_len, M_CTL, M_WAITOK); 846 } 847 memcpy(port->port_devid->data, &msg->port.data[i], 848 msg->port.port_devid_len); 849 port->port_devid->len = msg->port.port_devid_len; 850 i += msg->port.port_devid_len; 851 } else { 852 free(port->port_devid, M_CTL); 853 port->port_devid = NULL; 854 } 855 if (msg->port.target_devid_len != 0) { 856 if (port->target_devid == NULL || 857 port->target_devid->len != msg->port.target_devid_len) { 858 free(port->target_devid, M_CTL); 859 port->target_devid = malloc(sizeof(struct ctl_devid) + 860 msg->port.target_devid_len, M_CTL, M_WAITOK); 861 } 862 memcpy(port->target_devid->data, &msg->port.data[i], 863 msg->port.target_devid_len); 864 port->target_devid->len = msg->port.target_devid_len; 865 i += msg->port.target_devid_len; 866 } else { 867 free(port->port_devid, M_CTL); 868 port->port_devid = NULL; 869 } 870 if (new) { 871 if (ctl_port_register(port) != 0) { 872 printf("%s: ctl_port_register() failed with error\n", 873 __func__); 874 } 875 } 876 mtx_lock(&softc->ctl_lock); 877 STAILQ_FOREACH(lun, &softc->lun_list, links) { 878 if (ctl_lun_map_to_port(port, lun->lun) >= CTL_MAX_LUNS) 879 continue; 880 mtx_lock(&lun->lun_lock); 881 ctl_est_ua_all(lun, -1, CTL_UA_INQ_CHANGE); 882 mtx_unlock(&lun->lun_lock); 883 } 884 mtx_unlock(&softc->ctl_lock); 885} 886 887/* 888 * ISC (Inter Shelf Communication) event handler. Events from the HA 889 * subsystem come in here. 890 */ 891static void 892ctl_isc_event_handler(ctl_ha_channel channel, ctl_ha_event event, int param) 893{ 894 struct ctl_softc *softc; 895 union ctl_io *io; 896 struct ctl_prio *presio; 897 ctl_ha_status isc_status; 898 899 softc = control_softc; 900 CTL_DEBUG_PRINT(("CTL: Isc Msg event %d\n", event)); 901 if (event == CTL_HA_EVT_MSG_RECV) { 902 union ctl_ha_msg *msg, msgbuf; 903 904 if (param > sizeof(msgbuf)) 905 msg = malloc(param, M_CTL, M_WAITOK); 906 else 907 msg = &msgbuf; 908 isc_status = ctl_ha_msg_recv(CTL_HA_CHAN_CTL, msg, param, 909 M_WAITOK); 910 if (isc_status != CTL_HA_STATUS_SUCCESS) { 911 printf("%s: Error receiving message: %d\n", 912 __func__, isc_status); 913 if (msg != &msgbuf) 914 free(msg, M_CTL); 915 return; 916 } 917 918 CTL_DEBUG_PRINT(("CTL: msg_type %d\n", msg->msg_type)); 919 switch (msg->hdr.msg_type) { 920 case CTL_MSG_SERIALIZE: 921 io = ctl_alloc_io(softc->othersc_pool); 922 ctl_zero_io(io); 923 // populate ctsio from msg 924 io->io_hdr.io_type = CTL_IO_SCSI; 925 io->io_hdr.msg_type = CTL_MSG_SERIALIZE; 926 io->io_hdr.original_sc = msg->hdr.original_sc; 927 io->io_hdr.flags |= CTL_FLAG_FROM_OTHER_SC | 928 CTL_FLAG_IO_ACTIVE; 929 /* 930 * If we're in serialization-only mode, we don't 931 * want to go through full done processing. Thus 932 * the COPY flag. 933 * 934 * XXX KDM add another flag that is more specific. 935 */ 936 if (softc->ha_mode != CTL_HA_MODE_XFER) 937 io->io_hdr.flags |= CTL_FLAG_INT_COPY; 938 io->io_hdr.nexus = msg->hdr.nexus; 939#if 0 940 printf("port %u, iid %u, lun %u\n", 941 io->io_hdr.nexus.targ_port, 942 io->io_hdr.nexus.initid, 943 io->io_hdr.nexus.targ_lun); 944#endif 945 io->scsiio.tag_num = msg->scsi.tag_num; 946 io->scsiio.tag_type = msg->scsi.tag_type; 947#ifdef CTL_TIME_IO 948 io->io_hdr.start_time = time_uptime; 949 getbintime(&io->io_hdr.start_bt); 950#endif /* CTL_TIME_IO */ 951 io->scsiio.cdb_len = msg->scsi.cdb_len; 952 memcpy(io->scsiio.cdb, msg->scsi.cdb, 953 CTL_MAX_CDBLEN); 954 if (softc->ha_mode == CTL_HA_MODE_XFER) { 955 const struct ctl_cmd_entry *entry; 956 957 entry = ctl_get_cmd_entry(&io->scsiio, NULL); 958 io->io_hdr.flags &= ~CTL_FLAG_DATA_MASK; 959 io->io_hdr.flags |= 960 entry->flags & CTL_FLAG_DATA_MASK; 961 } 962 ctl_enqueue_isc(io); 963 break; 964 965 /* Performed on the Originating SC, XFER mode only */ 966 case CTL_MSG_DATAMOVE: { 967 struct ctl_sg_entry *sgl; 968 int i, j; 969 970 io = msg->hdr.original_sc; 971 if (io == NULL) { 972 printf("%s: original_sc == NULL!\n", __func__); 973 /* XXX KDM do something here */ 974 break; 975 } 976 io->io_hdr.msg_type = CTL_MSG_DATAMOVE; 977 io->io_hdr.flags |= CTL_FLAG_IO_ACTIVE; 978 /* 979 * Keep track of this, we need to send it back over 980 * when the datamove is complete. 981 */ 982 io->io_hdr.serializing_sc = msg->hdr.serializing_sc; 983 if (msg->hdr.status == CTL_SUCCESS) 984 io->io_hdr.status = msg->hdr.status; 985 986 if (msg->dt.sg_sequence == 0) { 987 i = msg->dt.kern_sg_entries + 988 io->scsiio.kern_data_len / 989 CTL_HA_DATAMOVE_SEGMENT + 1; 990 sgl = malloc(sizeof(*sgl) * i, M_CTL, 991 M_WAITOK | M_ZERO); 992 io->io_hdr.remote_sglist = sgl; 993 io->io_hdr.local_sglist = 994 &sgl[msg->dt.kern_sg_entries]; 995 996 io->scsiio.kern_data_ptr = (uint8_t *)sgl; 997 998 io->scsiio.kern_sg_entries = 999 msg->dt.kern_sg_entries; 1000 io->scsiio.rem_sg_entries = 1001 msg->dt.kern_sg_entries; 1002 io->scsiio.kern_data_len = 1003 msg->dt.kern_data_len; 1004 io->scsiio.kern_total_len = 1005 msg->dt.kern_total_len; 1006 io->scsiio.kern_data_resid = 1007 msg->dt.kern_data_resid; 1008 io->scsiio.kern_rel_offset = 1009 msg->dt.kern_rel_offset; 1010 io->io_hdr.flags &= ~CTL_FLAG_BUS_ADDR; 1011 io->io_hdr.flags |= msg->dt.flags & 1012 CTL_FLAG_BUS_ADDR; 1013 } else 1014 sgl = (struct ctl_sg_entry *) 1015 io->scsiio.kern_data_ptr; 1016 1017 for (i = msg->dt.sent_sg_entries, j = 0; 1018 i < (msg->dt.sent_sg_entries + 1019 msg->dt.cur_sg_entries); i++, j++) { 1020 sgl[i].addr = msg->dt.sg_list[j].addr; 1021 sgl[i].len = msg->dt.sg_list[j].len; 1022 1023#if 0 1024 printf("%s: L: %p,%d -> %p,%d j=%d, i=%d\n", 1025 __func__, 1026 msg->dt.sg_list[j].addr, 1027 msg->dt.sg_list[j].len, 1028 sgl[i].addr, sgl[i].len, j, i); 1029#endif 1030 } 1031 1032 /* 1033 * If this is the last piece of the I/O, we've got 1034 * the full S/G list. Queue processing in the thread. 1035 * Otherwise wait for the next piece. 1036 */ 1037 if (msg->dt.sg_last != 0) 1038 ctl_enqueue_isc(io); 1039 break; 1040 } 1041 /* Performed on the Serializing (primary) SC, XFER mode only */ 1042 case CTL_MSG_DATAMOVE_DONE: { 1043 if (msg->hdr.serializing_sc == NULL) { 1044 printf("%s: serializing_sc == NULL!\n", 1045 __func__); 1046 /* XXX KDM now what? */ 1047 break; 1048 } 1049 /* 1050 * We grab the sense information here in case 1051 * there was a failure, so we can return status 1052 * back to the initiator. 1053 */ 1054 io = msg->hdr.serializing_sc; 1055 io->io_hdr.msg_type = CTL_MSG_DATAMOVE_DONE; 1056 io->io_hdr.flags |= CTL_FLAG_IO_ACTIVE; 1057 io->io_hdr.port_status = msg->scsi.fetd_status; 1058 io->scsiio.residual = msg->scsi.residual; 1059 if (msg->hdr.status != CTL_STATUS_NONE) { 1060 io->io_hdr.status = msg->hdr.status; 1061 io->scsiio.scsi_status = msg->scsi.scsi_status; 1062 io->scsiio.sense_len = msg->scsi.sense_len; 1063 io->scsiio.sense_residual =msg->scsi.sense_residual; 1064 memcpy(&io->scsiio.sense_data, 1065 &msg->scsi.sense_data, 1066 msg->scsi.sense_len); 1067 if (msg->hdr.status == CTL_SUCCESS) 1068 io->io_hdr.flags |= CTL_FLAG_STATUS_SENT; 1069 } 1070 ctl_enqueue_isc(io); 1071 break; 1072 } 1073 1074 /* Preformed on Originating SC, SER_ONLY mode */ 1075 case CTL_MSG_R2R: 1076 io = msg->hdr.original_sc; 1077 if (io == NULL) { 1078 printf("%s: original_sc == NULL!\n", 1079 __func__); 1080 break; 1081 } 1082 io->io_hdr.flags |= CTL_FLAG_IO_ACTIVE; 1083 io->io_hdr.msg_type = CTL_MSG_R2R; 1084 io->io_hdr.serializing_sc = msg->hdr.serializing_sc; 1085 ctl_enqueue_isc(io); 1086 break; 1087 1088 /* 1089 * Performed on Serializing(i.e. primary SC) SC in SER_ONLY 1090 * mode. 1091 * Performed on the Originating (i.e. secondary) SC in XFER 1092 * mode 1093 */ 1094 case CTL_MSG_FINISH_IO: 1095 if (softc->ha_mode == CTL_HA_MODE_XFER) 1096 ctl_isc_handler_finish_xfer(softc, msg); 1097 else 1098 ctl_isc_handler_finish_ser_only(softc, msg); 1099 break; 1100 1101 /* Preformed on Originating SC */ 1102 case CTL_MSG_BAD_JUJU: 1103 io = msg->hdr.original_sc; 1104 if (io == NULL) { 1105 printf("%s: Bad JUJU!, original_sc is NULL!\n", 1106 __func__); 1107 break; 1108 } 1109 ctl_copy_sense_data(msg, io); 1110 /* 1111 * IO should have already been cleaned up on other 1112 * SC so clear this flag so we won't send a message 1113 * back to finish the IO there. 1114 */ 1115 io->io_hdr.flags &= ~CTL_FLAG_SENT_2OTHER_SC; 1116 io->io_hdr.flags |= CTL_FLAG_IO_ACTIVE; 1117 1118 /* io = msg->hdr.serializing_sc; */ 1119 io->io_hdr.msg_type = CTL_MSG_BAD_JUJU; 1120 ctl_enqueue_isc(io); 1121 break; 1122 1123 /* Handle resets sent from the other side */ 1124 case CTL_MSG_MANAGE_TASKS: { 1125 struct ctl_taskio *taskio; 1126 taskio = (struct ctl_taskio *)ctl_alloc_io( 1127 softc->othersc_pool); 1128 ctl_zero_io((union ctl_io *)taskio); 1129 taskio->io_hdr.io_type = CTL_IO_TASK; 1130 taskio->io_hdr.flags |= CTL_FLAG_FROM_OTHER_SC; 1131 taskio->io_hdr.nexus = msg->hdr.nexus; 1132 taskio->task_action = msg->task.task_action; 1133 taskio->tag_num = msg->task.tag_num; 1134 taskio->tag_type = msg->task.tag_type; 1135#ifdef CTL_TIME_IO 1136 taskio->io_hdr.start_time = time_uptime; 1137 getbintime(&taskio->io_hdr.start_bt); 1138#endif /* CTL_TIME_IO */ 1139 ctl_run_task((union ctl_io *)taskio); 1140 break; 1141 } 1142 /* Persistent Reserve action which needs attention */ 1143 case CTL_MSG_PERS_ACTION: 1144 presio = (struct ctl_prio *)ctl_alloc_io( 1145 softc->othersc_pool); 1146 ctl_zero_io((union ctl_io *)presio); 1147 presio->io_hdr.msg_type = CTL_MSG_PERS_ACTION; 1148 presio->io_hdr.flags |= CTL_FLAG_FROM_OTHER_SC; 1149 presio->io_hdr.nexus = msg->hdr.nexus; 1150 presio->pr_msg = msg->pr; 1151 ctl_enqueue_isc((union ctl_io *)presio); 1152 break; 1153 case CTL_MSG_UA: 1154 ctl_isc_ua(softc, msg, param); 1155 break; 1156 case CTL_MSG_PORT_SYNC: 1157 ctl_isc_port_sync(softc, msg, param); 1158 break; 1159 case CTL_MSG_LUN_SYNC: 1160 ctl_isc_lun_sync(softc, msg, param); 1161 break; 1162 default: 1163 printf("Received HA message of unknown type %d\n", 1164 msg->hdr.msg_type); 1165 break; 1166 } 1167 if (msg != &msgbuf) 1168 free(msg, M_CTL); 1169 } else if (event == CTL_HA_EVT_LINK_CHANGE) { 1170 printf("CTL: HA link status changed from %d to %d\n", 1171 softc->ha_link, param); 1172 if (param == softc->ha_link) 1173 return; 1174 if (softc->ha_link == CTL_HA_LINK_ONLINE) { 1175 softc->ha_link = param; 1176 ctl_isc_ha_link_down(softc); 1177 } else { 1178 softc->ha_link = param; 1179 if (softc->ha_link == CTL_HA_LINK_ONLINE) 1180 ctl_isc_ha_link_up(softc); 1181 } 1182 return; 1183 } else { 1184 printf("ctl_isc_event_handler: Unknown event %d\n", event); 1185 return; 1186 } 1187} 1188 1189static void 1190ctl_copy_sense_data(union ctl_ha_msg *src, union ctl_io *dest) 1191{ 1192 1193 memcpy(&dest->scsiio.sense_data, &src->scsi.sense_data, 1194 src->scsi.sense_len); 1195 dest->scsiio.scsi_status = src->scsi.scsi_status; 1196 dest->scsiio.sense_len = src->scsi.sense_len; 1197 dest->io_hdr.status = src->hdr.status; 1198} 1199 1200static void 1201ctl_copy_sense_data_back(union ctl_io *src, union ctl_ha_msg *dest) 1202{ 1203 1204 memcpy(&dest->scsi.sense_data, &src->scsiio.sense_data, 1205 src->scsiio.sense_len); 1206 dest->scsi.scsi_status = src->scsiio.scsi_status; 1207 dest->scsi.sense_len = src->scsiio.sense_len; 1208 dest->hdr.status = src->io_hdr.status; 1209} 1210 1211void 1212ctl_est_ua(struct ctl_lun *lun, uint32_t initidx, ctl_ua_type ua) 1213{ 1214 struct ctl_softc *softc = lun->ctl_softc; 1215 ctl_ua_type *pu; 1216 1217 if (initidx < softc->init_min || initidx >= softc->init_max) 1218 return; 1219 mtx_assert(&lun->lun_lock, MA_OWNED); 1220 pu = lun->pending_ua[initidx / CTL_MAX_INIT_PER_PORT]; 1221 if (pu == NULL) 1222 return; 1223 pu[initidx % CTL_MAX_INIT_PER_PORT] |= ua; 1224} 1225 1226void 1227ctl_est_ua_port(struct ctl_lun *lun, int port, uint32_t except, ctl_ua_type ua) 1228{ 1229 int i; 1230 1231 mtx_assert(&lun->lun_lock, MA_OWNED); 1232 if (lun->pending_ua[port] == NULL) 1233 return; 1234 for (i = 0; i < CTL_MAX_INIT_PER_PORT; i++) { 1235 if (port * CTL_MAX_INIT_PER_PORT + i == except) 1236 continue; 1237 lun->pending_ua[port][i] |= ua; 1238 } 1239} 1240 1241void 1242ctl_est_ua_all(struct ctl_lun *lun, uint32_t except, ctl_ua_type ua) 1243{ 1244 struct ctl_softc *softc = lun->ctl_softc; 1245 int i; 1246 1247 mtx_assert(&lun->lun_lock, MA_OWNED); 1248 for (i = softc->port_min; i < softc->port_max; i++) 1249 ctl_est_ua_port(lun, i, except, ua); 1250} 1251 1252void 1253ctl_clr_ua(struct ctl_lun *lun, uint32_t initidx, ctl_ua_type ua) 1254{ 1255 struct ctl_softc *softc = lun->ctl_softc; 1256 ctl_ua_type *pu; 1257 1258 if (initidx < softc->init_min || initidx >= softc->init_max) 1259 return; 1260 mtx_assert(&lun->lun_lock, MA_OWNED); 1261 pu = lun->pending_ua[initidx / CTL_MAX_INIT_PER_PORT]; 1262 if (pu == NULL) 1263 return; 1264 pu[initidx % CTL_MAX_INIT_PER_PORT] &= ~ua; 1265} 1266 1267void 1268ctl_clr_ua_all(struct ctl_lun *lun, uint32_t except, ctl_ua_type ua) 1269{ 1270 struct ctl_softc *softc = lun->ctl_softc; 1271 int i, j; 1272 1273 mtx_assert(&lun->lun_lock, MA_OWNED); 1274 for (i = softc->port_min; i < softc->port_max; i++) { 1275 if (lun->pending_ua[i] == NULL) 1276 continue; 1277 for (j = 0; j < CTL_MAX_INIT_PER_PORT; j++) { 1278 if (i * CTL_MAX_INIT_PER_PORT + j == except) 1279 continue; 1280 lun->pending_ua[i][j] &= ~ua; 1281 } 1282 } 1283} 1284 1285void 1286ctl_clr_ua_allluns(struct ctl_softc *ctl_softc, uint32_t initidx, 1287 ctl_ua_type ua_type) 1288{ 1289 struct ctl_lun *lun; 1290 1291 mtx_assert(&ctl_softc->ctl_lock, MA_OWNED); 1292 STAILQ_FOREACH(lun, &ctl_softc->lun_list, links) { 1293 mtx_lock(&lun->lun_lock); 1294 ctl_clr_ua(lun, initidx, ua_type); 1295 mtx_unlock(&lun->lun_lock); 1296 } 1297} 1298 1299static int 1300ctl_ha_role_sysctl(SYSCTL_HANDLER_ARGS) 1301{ 1302 struct ctl_softc *softc = (struct ctl_softc *)arg1; 1303 struct ctl_lun *lun; 1304 struct ctl_lun_req ireq; 1305 int error, value; 1306 1307 value = (softc->flags & CTL_FLAG_ACTIVE_SHELF) ? 0 : 1; 1308 error = sysctl_handle_int(oidp, &value, 0, req); 1309 if ((error != 0) || (req->newptr == NULL)) 1310 return (error); 1311 1312 mtx_lock(&softc->ctl_lock); 1313 if (value == 0) 1314 softc->flags |= CTL_FLAG_ACTIVE_SHELF; 1315 else 1316 softc->flags &= ~CTL_FLAG_ACTIVE_SHELF; 1317 STAILQ_FOREACH(lun, &softc->lun_list, links) { 1318 mtx_unlock(&softc->ctl_lock); 1319 bzero(&ireq, sizeof(ireq)); 1320 ireq.reqtype = CTL_LUNREQ_MODIFY; 1321 ireq.reqdata.modify.lun_id = lun->lun; 1322 lun->backend->ioctl(NULL, CTL_LUN_REQ, (caddr_t)&ireq, 0, 1323 curthread); 1324 if (ireq.status != CTL_LUN_OK) { 1325 printf("%s: CTL_LUNREQ_MODIFY returned %d '%s'\n", 1326 __func__, ireq.status, ireq.error_str); 1327 } 1328 mtx_lock(&softc->ctl_lock); 1329 } 1330 mtx_unlock(&softc->ctl_lock); 1331 return (0); 1332} 1333 1334static int 1335ctl_init(void) 1336{ 1337 struct ctl_softc *softc; 1338 void *other_pool; 1339 int i, error, retval; 1340 1341 retval = 0; 1342 control_softc = malloc(sizeof(*control_softc), M_DEVBUF, 1343 M_WAITOK | M_ZERO); 1344 softc = control_softc; 1345 1346 softc->dev = make_dev(&ctl_cdevsw, 0, UID_ROOT, GID_OPERATOR, 0600, 1347 "cam/ctl"); 1348 1349 softc->dev->si_drv1 = softc; 1350 1351 sysctl_ctx_init(&softc->sysctl_ctx); 1352 softc->sysctl_tree = SYSCTL_ADD_NODE(&softc->sysctl_ctx, 1353 SYSCTL_STATIC_CHILDREN(_kern_cam), OID_AUTO, "ctl", 1354 CTLFLAG_RD, 0, "CAM Target Layer"); 1355 1356 if (softc->sysctl_tree == NULL) { 1357 printf("%s: unable to allocate sysctl tree\n", __func__); 1358 destroy_dev(softc->dev); 1359 free(control_softc, M_DEVBUF); 1360 control_softc = NULL; 1361 return (ENOMEM); 1362 } 1363 1364 mtx_init(&softc->ctl_lock, "CTL mutex", NULL, MTX_DEF); 1365 softc->io_zone = uma_zcreate("CTL IO", sizeof(union ctl_io), 1366 NULL, NULL, NULL, NULL, UMA_ALIGN_PTR, 0); 1367 softc->open_count = 0; 1368 1369 /* 1370 * Default to actually sending a SYNCHRONIZE CACHE command down to 1371 * the drive. 1372 */ 1373 softc->flags = CTL_FLAG_REAL_SYNC; 1374 1375 SYSCTL_ADD_INT(&softc->sysctl_ctx, SYSCTL_CHILDREN(softc->sysctl_tree), 1376 OID_AUTO, "ha_mode", CTLFLAG_RDTUN, (int *)&softc->ha_mode, 0, 1377 "HA mode (0 - act/stby, 1 - serialize only, 2 - xfer)"); 1378 1379 /* 1380 * In Copan's HA scheme, the "master" and "slave" roles are 1381 * figured out through the slot the controller is in. Although it 1382 * is an active/active system, someone has to be in charge. 1383 */ 1384 SYSCTL_ADD_INT(&softc->sysctl_ctx, SYSCTL_CHILDREN(softc->sysctl_tree), 1385 OID_AUTO, "ha_id", CTLFLAG_RDTUN, &softc->ha_id, 0, 1386 "HA head ID (0 - no HA)"); 1387 if (softc->ha_id == 0 || softc->ha_id > NUM_TARGET_PORT_GROUPS) { 1388 softc->flags |= CTL_FLAG_ACTIVE_SHELF; 1389 softc->is_single = 1; 1390 softc->port_cnt = CTL_MAX_PORTS; 1391 softc->port_min = 0; 1392 } else { 1393 softc->port_cnt = CTL_MAX_PORTS / NUM_TARGET_PORT_GROUPS; 1394 softc->port_min = (softc->ha_id - 1) * softc->port_cnt; 1395 } 1396 softc->port_max = softc->port_min + softc->port_cnt; 1397 softc->init_min = softc->port_min * CTL_MAX_INIT_PER_PORT; 1398 softc->init_max = softc->port_max * CTL_MAX_INIT_PER_PORT; 1399 1400 SYSCTL_ADD_INT(&softc->sysctl_ctx, SYSCTL_CHILDREN(softc->sysctl_tree), 1401 OID_AUTO, "ha_link", CTLFLAG_RD, (int *)&softc->ha_link, 0, 1402 "HA link state (0 - offline, 1 - unknown, 2 - online)"); 1403 1404 STAILQ_INIT(&softc->lun_list); 1405 STAILQ_INIT(&softc->pending_lun_queue); 1406 STAILQ_INIT(&softc->fe_list); 1407 STAILQ_INIT(&softc->port_list); 1408 STAILQ_INIT(&softc->be_list); 1409 ctl_tpc_init(softc); 1410 1411 if (ctl_pool_create(softc, "othersc", CTL_POOL_ENTRIES_OTHER_SC, 1412 &other_pool) != 0) 1413 { 1414 printf("ctl: can't allocate %d entry other SC pool, " 1415 "exiting\n", CTL_POOL_ENTRIES_OTHER_SC); 1416 return (ENOMEM); 1417 } 1418 softc->othersc_pool = other_pool; 1419 1420 if (worker_threads <= 0) 1421 worker_threads = max(1, mp_ncpus / 4); 1422 if (worker_threads > CTL_MAX_THREADS) 1423 worker_threads = CTL_MAX_THREADS; 1424 1425 for (i = 0; i < worker_threads; i++) { 1426 struct ctl_thread *thr = &softc->threads[i]; 1427 1428 mtx_init(&thr->queue_lock, "CTL queue mutex", NULL, MTX_DEF); 1429 thr->ctl_softc = softc; 1430 STAILQ_INIT(&thr->incoming_queue); 1431 STAILQ_INIT(&thr->rtr_queue); 1432 STAILQ_INIT(&thr->done_queue); 1433 STAILQ_INIT(&thr->isc_queue); 1434 1435 error = kproc_kthread_add(ctl_work_thread, thr, 1436 &softc->ctl_proc, &thr->thread, 0, 0, "ctl", "work%d", i); 1437 if (error != 0) { 1438 printf("error creating CTL work thread!\n"); 1439 ctl_pool_free(other_pool); 1440 return (error); 1441 } 1442 } 1443 error = kproc_kthread_add(ctl_lun_thread, softc, 1444 &softc->ctl_proc, NULL, 0, 0, "ctl", "lun"); 1445 if (error != 0) { 1446 printf("error creating CTL lun thread!\n"); 1447 ctl_pool_free(other_pool); 1448 return (error); 1449 } 1450 error = kproc_kthread_add(ctl_thresh_thread, softc, 1451 &softc->ctl_proc, NULL, 0, 0, "ctl", "thresh"); 1452 if (error != 0) { 1453 printf("error creating CTL threshold thread!\n"); 1454 ctl_pool_free(other_pool); 1455 return (error); 1456 } 1457 1458 SYSCTL_ADD_PROC(&softc->sysctl_ctx,SYSCTL_CHILDREN(softc->sysctl_tree), 1459 OID_AUTO, "ha_role", CTLTYPE_INT | CTLFLAG_RWTUN, 1460 softc, 0, ctl_ha_role_sysctl, "I", "HA role for this head"); 1461 1462 if (softc->is_single == 0) { 1463 ctl_frontend_register(&ha_frontend); 1464 if (ctl_ha_msg_init(softc) != CTL_HA_STATUS_SUCCESS) { 1465 printf("ctl_init: ctl_ha_msg_init failed.\n"); 1466 softc->is_single = 1; 1467 } else 1468 if (ctl_ha_msg_register(CTL_HA_CHAN_CTL, ctl_isc_event_handler) 1469 != CTL_HA_STATUS_SUCCESS) { 1470 printf("ctl_init: ctl_ha_msg_register failed.\n"); 1471 softc->is_single = 1; 1472 } 1473 } 1474 return (0); 1475} 1476 1477void 1478ctl_shutdown(void) 1479{ 1480 struct ctl_softc *softc; 1481 struct ctl_lun *lun, *next_lun; 1482 1483 softc = (struct ctl_softc *)control_softc; 1484 1485 if (softc->is_single == 0) { 1486 if (ctl_ha_msg_deregister(CTL_HA_CHAN_CTL) 1487 != CTL_HA_STATUS_SUCCESS) { 1488 printf("ctl_shutdown: ctl_ha_msg_deregister failed.\n"); 1489 } 1490 if (ctl_ha_msg_shutdown(softc) != CTL_HA_STATUS_SUCCESS) { 1491 printf("ctl_shutdown: ctl_ha_msg_shutdown failed.\n"); 1492 } 1493 ctl_frontend_deregister(&ha_frontend); 1494 } 1495 1496 mtx_lock(&softc->ctl_lock); 1497 1498 /* 1499 * Free up each LUN. 1500 */ 1501 for (lun = STAILQ_FIRST(&softc->lun_list); lun != NULL; lun = next_lun){ 1502 next_lun = STAILQ_NEXT(lun, links); 1503 ctl_free_lun(lun); 1504 } 1505 1506 mtx_unlock(&softc->ctl_lock); 1507 1508#if 0 1509 ctl_shutdown_thread(softc->work_thread); 1510 mtx_destroy(&softc->queue_lock); 1511#endif 1512 1513 ctl_tpc_shutdown(softc); 1514 uma_zdestroy(softc->io_zone); 1515 mtx_destroy(&softc->ctl_lock); 1516 1517 destroy_dev(softc->dev); 1518 1519 sysctl_ctx_free(&softc->sysctl_ctx); 1520 1521 free(control_softc, M_DEVBUF); 1522 control_softc = NULL; 1523} 1524 1525static int 1526ctl_module_event_handler(module_t mod, int what, void *arg) 1527{ 1528 1529 switch (what) { 1530 case MOD_LOAD: 1531 return (ctl_init()); 1532 case MOD_UNLOAD: 1533 return (EBUSY); 1534 default: 1535 return (EOPNOTSUPP); 1536 } 1537} 1538 1539/* 1540 * XXX KDM should we do some access checks here? Bump a reference count to 1541 * prevent a CTL module from being unloaded while someone has it open? 1542 */ 1543static int 1544ctl_open(struct cdev *dev, int flags, int fmt, struct thread *td) 1545{ 1546 return (0); 1547} 1548 1549static int 1550ctl_close(struct cdev *dev, int flags, int fmt, struct thread *td) 1551{ 1552 return (0); 1553} 1554 1555/* 1556 * Remove an initiator by port number and initiator ID. 1557 * Returns 0 for success, -1 for failure. 1558 */ 1559int 1560ctl_remove_initiator(struct ctl_port *port, int iid) 1561{ 1562 struct ctl_softc *softc = control_softc; 1563 1564 mtx_assert(&softc->ctl_lock, MA_NOTOWNED); 1565 1566 if (iid > CTL_MAX_INIT_PER_PORT) { 1567 printf("%s: initiator ID %u > maximun %u!\n", 1568 __func__, iid, CTL_MAX_INIT_PER_PORT); 1569 return (-1); 1570 } 1571 1572 mtx_lock(&softc->ctl_lock); 1573 port->wwpn_iid[iid].in_use--; 1574 port->wwpn_iid[iid].last_use = time_uptime; 1575 mtx_unlock(&softc->ctl_lock); 1576 1577 return (0); 1578} 1579 1580/* 1581 * Add an initiator to the initiator map. 1582 * Returns iid for success, < 0 for failure. 1583 */ 1584int 1585ctl_add_initiator(struct ctl_port *port, int iid, uint64_t wwpn, char *name) 1586{ 1587 struct ctl_softc *softc = control_softc; 1588 time_t best_time; 1589 int i, best; 1590 1591 mtx_assert(&softc->ctl_lock, MA_NOTOWNED); 1592 1593 if (iid >= CTL_MAX_INIT_PER_PORT) { 1594 printf("%s: WWPN %#jx initiator ID %u > maximum %u!\n", 1595 __func__, wwpn, iid, CTL_MAX_INIT_PER_PORT); 1596 free(name, M_CTL); 1597 return (-1); 1598 } 1599 1600 mtx_lock(&softc->ctl_lock); 1601 1602 if (iid < 0 && (wwpn != 0 || name != NULL)) { 1603 for (i = 0; i < CTL_MAX_INIT_PER_PORT; i++) { 1604 if (wwpn != 0 && wwpn == port->wwpn_iid[i].wwpn) { 1605 iid = i; 1606 break; 1607 } 1608 if (name != NULL && port->wwpn_iid[i].name != NULL && 1609 strcmp(name, port->wwpn_iid[i].name) == 0) { 1610 iid = i; 1611 break; 1612 } 1613 } 1614 } 1615 1616 if (iid < 0) { 1617 for (i = 0; i < CTL_MAX_INIT_PER_PORT; i++) { 1618 if (port->wwpn_iid[i].in_use == 0 && 1619 port->wwpn_iid[i].wwpn == 0 && 1620 port->wwpn_iid[i].name == NULL) { 1621 iid = i; 1622 break; 1623 } 1624 } 1625 } 1626 1627 if (iid < 0) { 1628 best = -1; 1629 best_time = INT32_MAX; 1630 for (i = 0; i < CTL_MAX_INIT_PER_PORT; i++) { 1631 if (port->wwpn_iid[i].in_use == 0) { 1632 if (port->wwpn_iid[i].last_use < best_time) { 1633 best = i; 1634 best_time = port->wwpn_iid[i].last_use; 1635 } 1636 } 1637 } 1638 iid = best; 1639 } 1640 1641 if (iid < 0) { 1642 mtx_unlock(&softc->ctl_lock); 1643 free(name, M_CTL); 1644 return (-2); 1645 } 1646 1647 if (port->wwpn_iid[iid].in_use > 0 && (wwpn != 0 || name != NULL)) { 1648 /* 1649 * This is not an error yet. 1650 */ 1651 if (wwpn != 0 && wwpn == port->wwpn_iid[iid].wwpn) { 1652#if 0 1653 printf("%s: port %d iid %u WWPN %#jx arrived" 1654 " again\n", __func__, port->targ_port, 1655 iid, (uintmax_t)wwpn); 1656#endif 1657 goto take; 1658 } 1659 if (name != NULL && port->wwpn_iid[iid].name != NULL && 1660 strcmp(name, port->wwpn_iid[iid].name) == 0) { 1661#if 0 1662 printf("%s: port %d iid %u name '%s' arrived" 1663 " again\n", __func__, port->targ_port, 1664 iid, name); 1665#endif 1666 goto take; 1667 } 1668 1669 /* 1670 * This is an error, but what do we do about it? The 1671 * driver is telling us we have a new WWPN for this 1672 * initiator ID, so we pretty much need to use it. 1673 */ 1674 printf("%s: port %d iid %u WWPN %#jx '%s' arrived," 1675 " but WWPN %#jx '%s' is still at that address\n", 1676 __func__, port->targ_port, iid, wwpn, name, 1677 (uintmax_t)port->wwpn_iid[iid].wwpn, 1678 port->wwpn_iid[iid].name); 1679 1680 /* 1681 * XXX KDM clear have_ca and ua_pending on each LUN for 1682 * this initiator. 1683 */ 1684 } 1685take: 1686 free(port->wwpn_iid[iid].name, M_CTL); 1687 port->wwpn_iid[iid].name = name; 1688 port->wwpn_iid[iid].wwpn = wwpn; 1689 port->wwpn_iid[iid].in_use++; 1690 mtx_unlock(&softc->ctl_lock); 1691 1692 return (iid); 1693} 1694 1695static int 1696ctl_create_iid(struct ctl_port *port, int iid, uint8_t *buf) 1697{ 1698 int len; 1699 1700 switch (port->port_type) { 1701 case CTL_PORT_FC: 1702 { 1703 struct scsi_transportid_fcp *id = 1704 (struct scsi_transportid_fcp *)buf; 1705 if (port->wwpn_iid[iid].wwpn == 0) 1706 return (0); 1707 memset(id, 0, sizeof(*id)); 1708 id->format_protocol = SCSI_PROTO_FC; 1709 scsi_u64to8b(port->wwpn_iid[iid].wwpn, id->n_port_name); 1710 return (sizeof(*id)); 1711 } 1712 case CTL_PORT_ISCSI: 1713 { 1714 struct scsi_transportid_iscsi_port *id = 1715 (struct scsi_transportid_iscsi_port *)buf; 1716 if (port->wwpn_iid[iid].name == NULL) 1717 return (0); 1718 memset(id, 0, 256); 1719 id->format_protocol = SCSI_TRN_ISCSI_FORMAT_PORT | 1720 SCSI_PROTO_ISCSI; 1721 len = strlcpy(id->iscsi_name, port->wwpn_iid[iid].name, 252) + 1; 1722 len = roundup2(min(len, 252), 4); 1723 scsi_ulto2b(len, id->additional_length); 1724 return (sizeof(*id) + len); 1725 } 1726 case CTL_PORT_SAS: 1727 { 1728 struct scsi_transportid_sas *id = 1729 (struct scsi_transportid_sas *)buf; 1730 if (port->wwpn_iid[iid].wwpn == 0) 1731 return (0); 1732 memset(id, 0, sizeof(*id)); 1733 id->format_protocol = SCSI_PROTO_SAS; 1734 scsi_u64to8b(port->wwpn_iid[iid].wwpn, id->sas_address); 1735 return (sizeof(*id)); 1736 } 1737 default: 1738 { 1739 struct scsi_transportid_spi *id = 1740 (struct scsi_transportid_spi *)buf; 1741 memset(id, 0, sizeof(*id)); 1742 id->format_protocol = SCSI_PROTO_SPI; 1743 scsi_ulto2b(iid, id->scsi_addr); 1744 scsi_ulto2b(port->targ_port, id->rel_trgt_port_id); 1745 return (sizeof(*id)); 1746 } 1747 } 1748} 1749 1750/* 1751 * Serialize a command that went down the "wrong" side, and so was sent to 1752 * this controller for execution. The logic is a little different than the 1753 * standard case in ctl_scsiio_precheck(). Errors in this case need to get 1754 * sent back to the other side, but in the success case, we execute the 1755 * command on this side (XFER mode) or tell the other side to execute it 1756 * (SER_ONLY mode). 1757 */ 1758static int 1759ctl_serialize_other_sc_cmd(struct ctl_scsiio *ctsio) 1760{ 1761 struct ctl_softc *softc; 1762 union ctl_ha_msg msg_info; 1763 struct ctl_lun *lun; 1764 const struct ctl_cmd_entry *entry; 1765 int retval = 0; 1766 uint32_t targ_lun; 1767 1768 softc = control_softc; 1769 1770 targ_lun = ctsio->io_hdr.nexus.targ_mapped_lun; 1771 mtx_lock(&softc->ctl_lock); 1772 if ((targ_lun < CTL_MAX_LUNS) && 1773 ((lun = softc->ctl_luns[targ_lun]) != NULL)) { 1774 mtx_lock(&lun->lun_lock); 1775 mtx_unlock(&softc->ctl_lock); 1776 /* 1777 * If the LUN is invalid, pretend that it doesn't exist. 1778 * It will go away as soon as all pending I/O has been 1779 * completed. 1780 */ 1781 if (lun->flags & CTL_LUN_DISABLED) { 1782 mtx_unlock(&lun->lun_lock); 1783 lun = NULL; 1784 } 1785 } else { 1786 mtx_unlock(&softc->ctl_lock); 1787 lun = NULL; 1788 } 1789 if (lun == NULL) { 1790 /* 1791 * The other node would not send this request to us unless 1792 * received announce that we are primary node for this LUN. 1793 * If this LUN does not exist now, it is probably result of 1794 * a race, so respond to initiator in the most opaque way. 1795 */ 1796 ctl_set_busy(ctsio); 1797 ctl_copy_sense_data_back((union ctl_io *)ctsio, &msg_info); 1798 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 1799 msg_info.hdr.serializing_sc = NULL; 1800 msg_info.hdr.msg_type = CTL_MSG_BAD_JUJU; 1801 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 1802 sizeof(msg_info.scsi), M_WAITOK); 1803 return(1); 1804 } 1805 1806 entry = ctl_get_cmd_entry(ctsio, NULL); 1807 if (ctl_scsiio_lun_check(lun, entry, ctsio) != 0) { 1808 mtx_unlock(&lun->lun_lock); 1809 ctl_copy_sense_data_back((union ctl_io *)ctsio, &msg_info); 1810 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 1811 msg_info.hdr.serializing_sc = NULL; 1812 msg_info.hdr.msg_type = CTL_MSG_BAD_JUJU; 1813 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 1814 sizeof(msg_info.scsi), M_WAITOK); 1815 return(1); 1816 } 1817 1818 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr = lun; 1819 ctsio->io_hdr.ctl_private[CTL_PRIV_BACKEND_LUN].ptr = lun->be_lun; 1820 1821 /* 1822 * Every I/O goes into the OOA queue for a 1823 * particular LUN, and stays there until completion. 1824 */ 1825#ifdef CTL_TIME_IO 1826 if (TAILQ_EMPTY(&lun->ooa_queue)) 1827 lun->idle_time += getsbinuptime() - lun->last_busy; 1828#endif 1829 TAILQ_INSERT_TAIL(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 1830 1831 switch (ctl_check_ooa(lun, (union ctl_io *)ctsio, 1832 (union ctl_io *)TAILQ_PREV(&ctsio->io_hdr, ctl_ooaq, 1833 ooa_links))) { 1834 case CTL_ACTION_BLOCK: 1835 ctsio->io_hdr.flags |= CTL_FLAG_BLOCKED; 1836 TAILQ_INSERT_TAIL(&lun->blocked_queue, &ctsio->io_hdr, 1837 blocked_links); 1838 mtx_unlock(&lun->lun_lock); 1839 break; 1840 case CTL_ACTION_PASS: 1841 case CTL_ACTION_SKIP: 1842 if (softc->ha_mode == CTL_HA_MODE_XFER) { 1843 ctsio->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 1844 ctl_enqueue_rtr((union ctl_io *)ctsio); 1845 mtx_unlock(&lun->lun_lock); 1846 } else { 1847 ctsio->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 1848 mtx_unlock(&lun->lun_lock); 1849 1850 /* send msg back to other side */ 1851 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 1852 msg_info.hdr.serializing_sc = (union ctl_io *)ctsio; 1853 msg_info.hdr.msg_type = CTL_MSG_R2R; 1854 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 1855 sizeof(msg_info.hdr), M_WAITOK); 1856 } 1857 break; 1858 case CTL_ACTION_OVERLAP: 1859 TAILQ_REMOVE(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 1860 mtx_unlock(&lun->lun_lock); 1861 retval = 1; 1862 1863 ctl_set_overlapped_cmd(ctsio); 1864 ctl_copy_sense_data_back((union ctl_io *)ctsio, &msg_info); 1865 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 1866 msg_info.hdr.serializing_sc = NULL; 1867 msg_info.hdr.msg_type = CTL_MSG_BAD_JUJU; 1868 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 1869 sizeof(msg_info.scsi), M_WAITOK); 1870 break; 1871 case CTL_ACTION_OVERLAP_TAG: 1872 TAILQ_REMOVE(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 1873 mtx_unlock(&lun->lun_lock); 1874 retval = 1; 1875 ctl_set_overlapped_tag(ctsio, ctsio->tag_num); 1876 ctl_copy_sense_data_back((union ctl_io *)ctsio, &msg_info); 1877 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 1878 msg_info.hdr.serializing_sc = NULL; 1879 msg_info.hdr.msg_type = CTL_MSG_BAD_JUJU; 1880 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 1881 sizeof(msg_info.scsi), M_WAITOK); 1882 break; 1883 case CTL_ACTION_ERROR: 1884 default: 1885 TAILQ_REMOVE(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 1886 mtx_unlock(&lun->lun_lock); 1887 retval = 1; 1888 1889 ctl_set_internal_failure(ctsio, /*sks_valid*/ 0, 1890 /*retry_count*/ 0); 1891 ctl_copy_sense_data_back((union ctl_io *)ctsio, &msg_info); 1892 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 1893 msg_info.hdr.serializing_sc = NULL; 1894 msg_info.hdr.msg_type = CTL_MSG_BAD_JUJU; 1895 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 1896 sizeof(msg_info.scsi), M_WAITOK); 1897 break; 1898 } 1899 return (retval); 1900} 1901 1902/* 1903 * Returns 0 for success, errno for failure. 1904 */ 1905static int 1906ctl_ioctl_fill_ooa(struct ctl_lun *lun, uint32_t *cur_fill_num, 1907 struct ctl_ooa *ooa_hdr, struct ctl_ooa_entry *kern_entries) 1908{ 1909 union ctl_io *io; 1910 int retval; 1911 1912 retval = 0; 1913 1914 mtx_lock(&lun->lun_lock); 1915 for (io = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); (io != NULL); 1916 (*cur_fill_num)++, io = (union ctl_io *)TAILQ_NEXT(&io->io_hdr, 1917 ooa_links)) { 1918 struct ctl_ooa_entry *entry; 1919 1920 /* 1921 * If we've got more than we can fit, just count the 1922 * remaining entries. 1923 */ 1924 if (*cur_fill_num >= ooa_hdr->alloc_num) 1925 continue; 1926 1927 entry = &kern_entries[*cur_fill_num]; 1928 1929 entry->tag_num = io->scsiio.tag_num; 1930 entry->lun_num = lun->lun; 1931#ifdef CTL_TIME_IO 1932 entry->start_bt = io->io_hdr.start_bt; 1933#endif 1934 bcopy(io->scsiio.cdb, entry->cdb, io->scsiio.cdb_len); 1935 entry->cdb_len = io->scsiio.cdb_len; 1936 if (io->io_hdr.flags & CTL_FLAG_BLOCKED) 1937 entry->cmd_flags |= CTL_OOACMD_FLAG_BLOCKED; 1938 1939 if (io->io_hdr.flags & CTL_FLAG_DMA_INPROG) 1940 entry->cmd_flags |= CTL_OOACMD_FLAG_DMA; 1941 1942 if (io->io_hdr.flags & CTL_FLAG_ABORT) 1943 entry->cmd_flags |= CTL_OOACMD_FLAG_ABORT; 1944 1945 if (io->io_hdr.flags & CTL_FLAG_IS_WAS_ON_RTR) 1946 entry->cmd_flags |= CTL_OOACMD_FLAG_RTR; 1947 1948 if (io->io_hdr.flags & CTL_FLAG_DMA_QUEUED) 1949 entry->cmd_flags |= CTL_OOACMD_FLAG_DMA_QUEUED; 1950 } 1951 mtx_unlock(&lun->lun_lock); 1952 1953 return (retval); 1954} 1955 1956static void * 1957ctl_copyin_alloc(void *user_addr, int len, char *error_str, 1958 size_t error_str_len) 1959{ 1960 void *kptr; 1961 1962 kptr = malloc(len, M_CTL, M_WAITOK | M_ZERO); 1963 1964 if (copyin(user_addr, kptr, len) != 0) { 1965 snprintf(error_str, error_str_len, "Error copying %d bytes " 1966 "from user address %p to kernel address %p", len, 1967 user_addr, kptr); 1968 free(kptr, M_CTL); 1969 return (NULL); 1970 } 1971 1972 return (kptr); 1973} 1974 1975static void 1976ctl_free_args(int num_args, struct ctl_be_arg *args) 1977{ 1978 int i; 1979 1980 if (args == NULL) 1981 return; 1982 1983 for (i = 0; i < num_args; i++) { 1984 free(args[i].kname, M_CTL); 1985 free(args[i].kvalue, M_CTL); 1986 } 1987 1988 free(args, M_CTL); 1989} 1990 1991static struct ctl_be_arg * 1992ctl_copyin_args(int num_args, struct ctl_be_arg *uargs, 1993 char *error_str, size_t error_str_len) 1994{ 1995 struct ctl_be_arg *args; 1996 int i; 1997 1998 args = ctl_copyin_alloc(uargs, num_args * sizeof(*args), 1999 error_str, error_str_len); 2000 2001 if (args == NULL) 2002 goto bailout; 2003 2004 for (i = 0; i < num_args; i++) { 2005 args[i].kname = NULL; 2006 args[i].kvalue = NULL; 2007 } 2008 2009 for (i = 0; i < num_args; i++) { 2010 uint8_t *tmpptr; 2011 2012 args[i].kname = ctl_copyin_alloc(args[i].name, 2013 args[i].namelen, error_str, error_str_len); 2014 if (args[i].kname == NULL) 2015 goto bailout; 2016 2017 if (args[i].kname[args[i].namelen - 1] != '\0') { 2018 snprintf(error_str, error_str_len, "Argument %d " 2019 "name is not NUL-terminated", i); 2020 goto bailout; 2021 } 2022 2023 if (args[i].flags & CTL_BEARG_RD) { 2024 tmpptr = ctl_copyin_alloc(args[i].value, 2025 args[i].vallen, error_str, error_str_len); 2026 if (tmpptr == NULL) 2027 goto bailout; 2028 if ((args[i].flags & CTL_BEARG_ASCII) 2029 && (tmpptr[args[i].vallen - 1] != '\0')) { 2030 snprintf(error_str, error_str_len, "Argument " 2031 "%d value is not NUL-terminated", i); 2032 goto bailout; 2033 } 2034 args[i].kvalue = tmpptr; 2035 } else { 2036 args[i].kvalue = malloc(args[i].vallen, 2037 M_CTL, M_WAITOK | M_ZERO); 2038 } 2039 } 2040 2041 return (args); 2042bailout: 2043 2044 ctl_free_args(num_args, args); 2045 2046 return (NULL); 2047} 2048 2049static void 2050ctl_copyout_args(int num_args, struct ctl_be_arg *args) 2051{ 2052 int i; 2053 2054 for (i = 0; i < num_args; i++) { 2055 if (args[i].flags & CTL_BEARG_WR) 2056 copyout(args[i].kvalue, args[i].value, args[i].vallen); 2057 } 2058} 2059 2060/* 2061 * Escape characters that are illegal or not recommended in XML. 2062 */ 2063int 2064ctl_sbuf_printf_esc(struct sbuf *sb, char *str, int size) 2065{ 2066 char *end = str + size; 2067 int retval; 2068 2069 retval = 0; 2070 2071 for (; *str && str < end; str++) { 2072 switch (*str) { 2073 case '&': 2074 retval = sbuf_printf(sb, "&"); 2075 break; 2076 case '>': 2077 retval = sbuf_printf(sb, ">"); 2078 break; 2079 case '<': 2080 retval = sbuf_printf(sb, "<"); 2081 break; 2082 default: 2083 retval = sbuf_putc(sb, *str); 2084 break; 2085 } 2086 2087 if (retval != 0) 2088 break; 2089 2090 } 2091 2092 return (retval); 2093} 2094 2095static void 2096ctl_id_sbuf(struct ctl_devid *id, struct sbuf *sb) 2097{ 2098 struct scsi_vpd_id_descriptor *desc; 2099 int i; 2100 2101 if (id == NULL || id->len < 4) 2102 return; 2103 desc = (struct scsi_vpd_id_descriptor *)id->data; 2104 switch (desc->id_type & SVPD_ID_TYPE_MASK) { 2105 case SVPD_ID_TYPE_T10: 2106 sbuf_printf(sb, "t10."); 2107 break; 2108 case SVPD_ID_TYPE_EUI64: 2109 sbuf_printf(sb, "eui."); 2110 break; 2111 case SVPD_ID_TYPE_NAA: 2112 sbuf_printf(sb, "naa."); 2113 break; 2114 case SVPD_ID_TYPE_SCSI_NAME: 2115 break; 2116 } 2117 switch (desc->proto_codeset & SVPD_ID_CODESET_MASK) { 2118 case SVPD_ID_CODESET_BINARY: 2119 for (i = 0; i < desc->length; i++) 2120 sbuf_printf(sb, "%02x", desc->identifier[i]); 2121 break; 2122 case SVPD_ID_CODESET_ASCII: 2123 sbuf_printf(sb, "%.*s", (int)desc->length, 2124 (char *)desc->identifier); 2125 break; 2126 case SVPD_ID_CODESET_UTF8: 2127 sbuf_printf(sb, "%s", (char *)desc->identifier); 2128 break; 2129 } 2130} 2131 2132static int 2133ctl_ioctl(struct cdev *dev, u_long cmd, caddr_t addr, int flag, 2134 struct thread *td) 2135{ 2136 struct ctl_softc *softc; 2137 struct ctl_lun *lun; 2138 int retval; 2139 2140 softc = control_softc; 2141 2142 retval = 0; 2143 2144 switch (cmd) { 2145 case CTL_IO: 2146 retval = ctl_ioctl_io(dev, cmd, addr, flag, td); 2147 break; 2148 case CTL_ENABLE_PORT: 2149 case CTL_DISABLE_PORT: 2150 case CTL_SET_PORT_WWNS: { 2151 struct ctl_port *port; 2152 struct ctl_port_entry *entry; 2153 2154 entry = (struct ctl_port_entry *)addr; 2155 2156 mtx_lock(&softc->ctl_lock); 2157 STAILQ_FOREACH(port, &softc->port_list, links) { 2158 int action, done; 2159 2160 if (port->targ_port < softc->port_min || 2161 port->targ_port >= softc->port_max) 2162 continue; 2163 2164 action = 0; 2165 done = 0; 2166 if ((entry->port_type == CTL_PORT_NONE) 2167 && (entry->targ_port == port->targ_port)) { 2168 /* 2169 * If the user only wants to enable or 2170 * disable or set WWNs on a specific port, 2171 * do the operation and we're done. 2172 */ 2173 action = 1; 2174 done = 1; 2175 } else if (entry->port_type & port->port_type) { 2176 /* 2177 * Compare the user's type mask with the 2178 * particular frontend type to see if we 2179 * have a match. 2180 */ 2181 action = 1; 2182 done = 0; 2183 2184 /* 2185 * Make sure the user isn't trying to set 2186 * WWNs on multiple ports at the same time. 2187 */ 2188 if (cmd == CTL_SET_PORT_WWNS) { 2189 printf("%s: Can't set WWNs on " 2190 "multiple ports\n", __func__); 2191 retval = EINVAL; 2192 break; 2193 } 2194 } 2195 if (action == 0) 2196 continue; 2197 2198 /* 2199 * XXX KDM we have to drop the lock here, because 2200 * the online/offline operations can potentially 2201 * block. We need to reference count the frontends 2202 * so they can't go away, 2203 */ 2204 if (cmd == CTL_ENABLE_PORT) { 2205 mtx_unlock(&softc->ctl_lock); 2206 ctl_port_online(port); 2207 mtx_lock(&softc->ctl_lock); 2208 } else if (cmd == CTL_DISABLE_PORT) { 2209 mtx_unlock(&softc->ctl_lock); 2210 ctl_port_offline(port); 2211 mtx_lock(&softc->ctl_lock); 2212 } else if (cmd == CTL_SET_PORT_WWNS) { 2213 ctl_port_set_wwns(port, 2214 (entry->flags & CTL_PORT_WWNN_VALID) ? 2215 1 : 0, entry->wwnn, 2216 (entry->flags & CTL_PORT_WWPN_VALID) ? 2217 1 : 0, entry->wwpn); 2218 } 2219 if (done != 0) 2220 break; 2221 } 2222 mtx_unlock(&softc->ctl_lock); 2223 break; 2224 } 2225 case CTL_GET_PORT_LIST: { 2226 struct ctl_port *port; 2227 struct ctl_port_list *list; 2228 int i; 2229 2230 list = (struct ctl_port_list *)addr; 2231 2232 if (list->alloc_len != (list->alloc_num * 2233 sizeof(struct ctl_port_entry))) { 2234 printf("%s: CTL_GET_PORT_LIST: alloc_len %u != " 2235 "alloc_num %u * sizeof(struct ctl_port_entry) " 2236 "%zu\n", __func__, list->alloc_len, 2237 list->alloc_num, sizeof(struct ctl_port_entry)); 2238 retval = EINVAL; 2239 break; 2240 } 2241 list->fill_len = 0; 2242 list->fill_num = 0; 2243 list->dropped_num = 0; 2244 i = 0; 2245 mtx_lock(&softc->ctl_lock); 2246 STAILQ_FOREACH(port, &softc->port_list, links) { 2247 struct ctl_port_entry entry, *list_entry; 2248 2249 if (list->fill_num >= list->alloc_num) { 2250 list->dropped_num++; 2251 continue; 2252 } 2253 2254 entry.port_type = port->port_type; 2255 strlcpy(entry.port_name, port->port_name, 2256 sizeof(entry.port_name)); 2257 entry.targ_port = port->targ_port; 2258 entry.physical_port = port->physical_port; 2259 entry.virtual_port = port->virtual_port; 2260 entry.wwnn = port->wwnn; 2261 entry.wwpn = port->wwpn; 2262 if (port->status & CTL_PORT_STATUS_ONLINE) 2263 entry.online = 1; 2264 else 2265 entry.online = 0; 2266 2267 list_entry = &list->entries[i]; 2268 2269 retval = copyout(&entry, list_entry, sizeof(entry)); 2270 if (retval != 0) { 2271 printf("%s: CTL_GET_PORT_LIST: copyout " 2272 "returned %d\n", __func__, retval); 2273 break; 2274 } 2275 i++; 2276 list->fill_num++; 2277 list->fill_len += sizeof(entry); 2278 } 2279 mtx_unlock(&softc->ctl_lock); 2280 2281 /* 2282 * If this is non-zero, we had a copyout fault, so there's 2283 * probably no point in attempting to set the status inside 2284 * the structure. 2285 */ 2286 if (retval != 0) 2287 break; 2288 2289 if (list->dropped_num > 0) 2290 list->status = CTL_PORT_LIST_NEED_MORE_SPACE; 2291 else 2292 list->status = CTL_PORT_LIST_OK; 2293 break; 2294 } 2295 case CTL_DUMP_OOA: { 2296 union ctl_io *io; 2297 char printbuf[128]; 2298 struct sbuf sb; 2299 2300 mtx_lock(&softc->ctl_lock); 2301 printf("Dumping OOA queues:\n"); 2302 STAILQ_FOREACH(lun, &softc->lun_list, links) { 2303 mtx_lock(&lun->lun_lock); 2304 for (io = (union ctl_io *)TAILQ_FIRST( 2305 &lun->ooa_queue); io != NULL; 2306 io = (union ctl_io *)TAILQ_NEXT(&io->io_hdr, 2307 ooa_links)) { 2308 sbuf_new(&sb, printbuf, sizeof(printbuf), 2309 SBUF_FIXEDLEN); 2310 sbuf_printf(&sb, "LUN %jd tag 0x%04x%s%s%s%s: ", 2311 (intmax_t)lun->lun, 2312 io->scsiio.tag_num, 2313 (io->io_hdr.flags & 2314 CTL_FLAG_BLOCKED) ? "" : " BLOCKED", 2315 (io->io_hdr.flags & 2316 CTL_FLAG_DMA_INPROG) ? " DMA" : "", 2317 (io->io_hdr.flags & 2318 CTL_FLAG_ABORT) ? " ABORT" : "", 2319 (io->io_hdr.flags & 2320 CTL_FLAG_IS_WAS_ON_RTR) ? " RTR" : ""); 2321 ctl_scsi_command_string(&io->scsiio, NULL, &sb); 2322 sbuf_finish(&sb); 2323 printf("%s\n", sbuf_data(&sb)); 2324 } 2325 mtx_unlock(&lun->lun_lock); 2326 } 2327 printf("OOA queues dump done\n"); 2328 mtx_unlock(&softc->ctl_lock); 2329 break; 2330 } 2331 case CTL_GET_OOA: { 2332 struct ctl_ooa *ooa_hdr; 2333 struct ctl_ooa_entry *entries; 2334 uint32_t cur_fill_num; 2335 2336 ooa_hdr = (struct ctl_ooa *)addr; 2337 2338 if ((ooa_hdr->alloc_len == 0) 2339 || (ooa_hdr->alloc_num == 0)) { 2340 printf("%s: CTL_GET_OOA: alloc len %u and alloc num %u " 2341 "must be non-zero\n", __func__, 2342 ooa_hdr->alloc_len, ooa_hdr->alloc_num); 2343 retval = EINVAL; 2344 break; 2345 } 2346 2347 if (ooa_hdr->alloc_len != (ooa_hdr->alloc_num * 2348 sizeof(struct ctl_ooa_entry))) { 2349 printf("%s: CTL_GET_OOA: alloc len %u must be alloc " 2350 "num %d * sizeof(struct ctl_ooa_entry) %zd\n", 2351 __func__, ooa_hdr->alloc_len, 2352 ooa_hdr->alloc_num,sizeof(struct ctl_ooa_entry)); 2353 retval = EINVAL; 2354 break; 2355 } 2356 2357 entries = malloc(ooa_hdr->alloc_len, M_CTL, M_WAITOK | M_ZERO); 2358 if (entries == NULL) { 2359 printf("%s: could not allocate %d bytes for OOA " 2360 "dump\n", __func__, ooa_hdr->alloc_len); 2361 retval = ENOMEM; 2362 break; 2363 } 2364 2365 mtx_lock(&softc->ctl_lock); 2366 if (((ooa_hdr->flags & CTL_OOA_FLAG_ALL_LUNS) == 0) 2367 && ((ooa_hdr->lun_num >= CTL_MAX_LUNS) 2368 || (softc->ctl_luns[ooa_hdr->lun_num] == NULL))) { 2369 mtx_unlock(&softc->ctl_lock); 2370 free(entries, M_CTL); 2371 printf("%s: CTL_GET_OOA: invalid LUN %ju\n", 2372 __func__, (uintmax_t)ooa_hdr->lun_num); 2373 retval = EINVAL; 2374 break; 2375 } 2376 2377 cur_fill_num = 0; 2378 2379 if (ooa_hdr->flags & CTL_OOA_FLAG_ALL_LUNS) { 2380 STAILQ_FOREACH(lun, &softc->lun_list, links) { 2381 retval = ctl_ioctl_fill_ooa(lun, &cur_fill_num, 2382 ooa_hdr, entries); 2383 if (retval != 0) 2384 break; 2385 } 2386 if (retval != 0) { 2387 mtx_unlock(&softc->ctl_lock); 2388 free(entries, M_CTL); 2389 break; 2390 } 2391 } else { 2392 lun = softc->ctl_luns[ooa_hdr->lun_num]; 2393 2394 retval = ctl_ioctl_fill_ooa(lun, &cur_fill_num,ooa_hdr, 2395 entries); 2396 } 2397 mtx_unlock(&softc->ctl_lock); 2398 2399 ooa_hdr->fill_num = min(cur_fill_num, ooa_hdr->alloc_num); 2400 ooa_hdr->fill_len = ooa_hdr->fill_num * 2401 sizeof(struct ctl_ooa_entry); 2402 retval = copyout(entries, ooa_hdr->entries, ooa_hdr->fill_len); 2403 if (retval != 0) { 2404 printf("%s: error copying out %d bytes for OOA dump\n", 2405 __func__, ooa_hdr->fill_len); 2406 } 2407 2408 getbintime(&ooa_hdr->cur_bt); 2409 2410 if (cur_fill_num > ooa_hdr->alloc_num) { 2411 ooa_hdr->dropped_num = cur_fill_num -ooa_hdr->alloc_num; 2412 ooa_hdr->status = CTL_OOA_NEED_MORE_SPACE; 2413 } else { 2414 ooa_hdr->dropped_num = 0; 2415 ooa_hdr->status = CTL_OOA_OK; 2416 } 2417 2418 free(entries, M_CTL); 2419 break; 2420 } 2421 case CTL_CHECK_OOA: { 2422 union ctl_io *io; 2423 struct ctl_ooa_info *ooa_info; 2424 2425 2426 ooa_info = (struct ctl_ooa_info *)addr; 2427 2428 if (ooa_info->lun_id >= CTL_MAX_LUNS) { 2429 ooa_info->status = CTL_OOA_INVALID_LUN; 2430 break; 2431 } 2432 mtx_lock(&softc->ctl_lock); 2433 lun = softc->ctl_luns[ooa_info->lun_id]; 2434 if (lun == NULL) { 2435 mtx_unlock(&softc->ctl_lock); 2436 ooa_info->status = CTL_OOA_INVALID_LUN; 2437 break; 2438 } 2439 mtx_lock(&lun->lun_lock); 2440 mtx_unlock(&softc->ctl_lock); 2441 ooa_info->num_entries = 0; 2442 for (io = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); 2443 io != NULL; io = (union ctl_io *)TAILQ_NEXT( 2444 &io->io_hdr, ooa_links)) { 2445 ooa_info->num_entries++; 2446 } 2447 mtx_unlock(&lun->lun_lock); 2448 2449 ooa_info->status = CTL_OOA_SUCCESS; 2450 2451 break; 2452 } 2453 case CTL_DELAY_IO: { 2454 struct ctl_io_delay_info *delay_info; 2455 2456 delay_info = (struct ctl_io_delay_info *)addr; 2457 2458#ifdef CTL_IO_DELAY 2459 mtx_lock(&softc->ctl_lock); 2460 2461 if ((delay_info->lun_id >= CTL_MAX_LUNS) 2462 || (softc->ctl_luns[delay_info->lun_id] == NULL)) { 2463 delay_info->status = CTL_DELAY_STATUS_INVALID_LUN; 2464 } else { 2465 lun = softc->ctl_luns[delay_info->lun_id]; 2466 mtx_lock(&lun->lun_lock); 2467 2468 delay_info->status = CTL_DELAY_STATUS_OK; 2469 2470 switch (delay_info->delay_type) { 2471 case CTL_DELAY_TYPE_CONT: 2472 break; 2473 case CTL_DELAY_TYPE_ONESHOT: 2474 break; 2475 default: 2476 delay_info->status = 2477 CTL_DELAY_STATUS_INVALID_TYPE; 2478 break; 2479 } 2480 2481 switch (delay_info->delay_loc) { 2482 case CTL_DELAY_LOC_DATAMOVE: 2483 lun->delay_info.datamove_type = 2484 delay_info->delay_type; 2485 lun->delay_info.datamove_delay = 2486 delay_info->delay_secs; 2487 break; 2488 case CTL_DELAY_LOC_DONE: 2489 lun->delay_info.done_type = 2490 delay_info->delay_type; 2491 lun->delay_info.done_delay = 2492 delay_info->delay_secs; 2493 break; 2494 default: 2495 delay_info->status = 2496 CTL_DELAY_STATUS_INVALID_LOC; 2497 break; 2498 } 2499 mtx_unlock(&lun->lun_lock); 2500 } 2501 2502 mtx_unlock(&softc->ctl_lock); 2503#else 2504 delay_info->status = CTL_DELAY_STATUS_NOT_IMPLEMENTED; 2505#endif /* CTL_IO_DELAY */ 2506 break; 2507 } 2508 case CTL_REALSYNC_SET: { 2509 int *syncstate; 2510 2511 syncstate = (int *)addr; 2512 2513 mtx_lock(&softc->ctl_lock); 2514 switch (*syncstate) { 2515 case 0: 2516 softc->flags &= ~CTL_FLAG_REAL_SYNC; 2517 break; 2518 case 1: 2519 softc->flags |= CTL_FLAG_REAL_SYNC; 2520 break; 2521 default: 2522 retval = EINVAL; 2523 break; 2524 } 2525 mtx_unlock(&softc->ctl_lock); 2526 break; 2527 } 2528 case CTL_REALSYNC_GET: { 2529 int *syncstate; 2530 2531 syncstate = (int*)addr; 2532 2533 mtx_lock(&softc->ctl_lock); 2534 if (softc->flags & CTL_FLAG_REAL_SYNC) 2535 *syncstate = 1; 2536 else 2537 *syncstate = 0; 2538 mtx_unlock(&softc->ctl_lock); 2539 2540 break; 2541 } 2542 case CTL_SETSYNC: 2543 case CTL_GETSYNC: { 2544 struct ctl_sync_info *sync_info; 2545 2546 sync_info = (struct ctl_sync_info *)addr; 2547 2548 mtx_lock(&softc->ctl_lock); 2549 lun = softc->ctl_luns[sync_info->lun_id]; 2550 if (lun == NULL) { 2551 mtx_unlock(&softc->ctl_lock); 2552 sync_info->status = CTL_GS_SYNC_NO_LUN; 2553 break; 2554 } 2555 /* 2556 * Get or set the sync interval. We're not bounds checking 2557 * in the set case, hopefully the user won't do something 2558 * silly. 2559 */ 2560 mtx_lock(&lun->lun_lock); 2561 mtx_unlock(&softc->ctl_lock); 2562 if (cmd == CTL_GETSYNC) 2563 sync_info->sync_interval = lun->sync_interval; 2564 else 2565 lun->sync_interval = sync_info->sync_interval; 2566 mtx_unlock(&lun->lun_lock); 2567 2568 sync_info->status = CTL_GS_SYNC_OK; 2569 2570 break; 2571 } 2572 case CTL_GETSTATS: { 2573 struct ctl_stats *stats; 2574 int i; 2575 2576 stats = (struct ctl_stats *)addr; 2577 2578 if ((sizeof(struct ctl_lun_io_stats) * softc->num_luns) > 2579 stats->alloc_len) { 2580 stats->status = CTL_SS_NEED_MORE_SPACE; 2581 stats->num_luns = softc->num_luns; 2582 break; 2583 } 2584 /* 2585 * XXX KDM no locking here. If the LUN list changes, 2586 * things can blow up. 2587 */ 2588 for (i = 0, lun = STAILQ_FIRST(&softc->lun_list); lun != NULL; 2589 i++, lun = STAILQ_NEXT(lun, links)) { 2590 retval = copyout(&lun->stats, &stats->lun_stats[i], 2591 sizeof(lun->stats)); 2592 if (retval != 0) 2593 break; 2594 } 2595 stats->num_luns = softc->num_luns; 2596 stats->fill_len = sizeof(struct ctl_lun_io_stats) * 2597 softc->num_luns; 2598 stats->status = CTL_SS_OK; 2599#ifdef CTL_TIME_IO 2600 stats->flags = CTL_STATS_FLAG_TIME_VALID; 2601#else 2602 stats->flags = CTL_STATS_FLAG_NONE; 2603#endif 2604 getnanouptime(&stats->timestamp); 2605 break; 2606 } 2607 case CTL_ERROR_INJECT: { 2608 struct ctl_error_desc *err_desc, *new_err_desc; 2609 2610 err_desc = (struct ctl_error_desc *)addr; 2611 2612 new_err_desc = malloc(sizeof(*new_err_desc), M_CTL, 2613 M_WAITOK | M_ZERO); 2614 bcopy(err_desc, new_err_desc, sizeof(*new_err_desc)); 2615 2616 mtx_lock(&softc->ctl_lock); 2617 lun = softc->ctl_luns[err_desc->lun_id]; 2618 if (lun == NULL) { 2619 mtx_unlock(&softc->ctl_lock); 2620 free(new_err_desc, M_CTL); 2621 printf("%s: CTL_ERROR_INJECT: invalid LUN %ju\n", 2622 __func__, (uintmax_t)err_desc->lun_id); 2623 retval = EINVAL; 2624 break; 2625 } 2626 mtx_lock(&lun->lun_lock); 2627 mtx_unlock(&softc->ctl_lock); 2628 2629 /* 2630 * We could do some checking here to verify the validity 2631 * of the request, but given the complexity of error 2632 * injection requests, the checking logic would be fairly 2633 * complex. 2634 * 2635 * For now, if the request is invalid, it just won't get 2636 * executed and might get deleted. 2637 */ 2638 STAILQ_INSERT_TAIL(&lun->error_list, new_err_desc, links); 2639 2640 /* 2641 * XXX KDM check to make sure the serial number is unique, 2642 * in case we somehow manage to wrap. That shouldn't 2643 * happen for a very long time, but it's the right thing to 2644 * do. 2645 */ 2646 new_err_desc->serial = lun->error_serial; 2647 err_desc->serial = lun->error_serial; 2648 lun->error_serial++; 2649 2650 mtx_unlock(&lun->lun_lock); 2651 break; 2652 } 2653 case CTL_ERROR_INJECT_DELETE: { 2654 struct ctl_error_desc *delete_desc, *desc, *desc2; 2655 int delete_done; 2656 2657 delete_desc = (struct ctl_error_desc *)addr; 2658 delete_done = 0; 2659 2660 mtx_lock(&softc->ctl_lock); 2661 lun = softc->ctl_luns[delete_desc->lun_id]; 2662 if (lun == NULL) { 2663 mtx_unlock(&softc->ctl_lock); 2664 printf("%s: CTL_ERROR_INJECT_DELETE: invalid LUN %ju\n", 2665 __func__, (uintmax_t)delete_desc->lun_id); 2666 retval = EINVAL; 2667 break; 2668 } 2669 mtx_lock(&lun->lun_lock); 2670 mtx_unlock(&softc->ctl_lock); 2671 STAILQ_FOREACH_SAFE(desc, &lun->error_list, links, desc2) { 2672 if (desc->serial != delete_desc->serial) 2673 continue; 2674 2675 STAILQ_REMOVE(&lun->error_list, desc, ctl_error_desc, 2676 links); 2677 free(desc, M_CTL); 2678 delete_done = 1; 2679 } 2680 mtx_unlock(&lun->lun_lock); 2681 if (delete_done == 0) { 2682 printf("%s: CTL_ERROR_INJECT_DELETE: can't find " 2683 "error serial %ju on LUN %u\n", __func__, 2684 delete_desc->serial, delete_desc->lun_id); 2685 retval = EINVAL; 2686 break; 2687 } 2688 break; 2689 } 2690 case CTL_DUMP_STRUCTS: { 2691 int i, j, k; 2692 struct ctl_port *port; 2693 struct ctl_frontend *fe; 2694 2695 mtx_lock(&softc->ctl_lock); 2696 printf("CTL Persistent Reservation information start:\n"); 2697 for (i = 0; i < CTL_MAX_LUNS; i++) { 2698 lun = softc->ctl_luns[i]; 2699 2700 if ((lun == NULL) 2701 || ((lun->flags & CTL_LUN_DISABLED) != 0)) 2702 continue; 2703 2704 for (j = 0; j < CTL_MAX_PORTS; j++) { 2705 if (lun->pr_keys[j] == NULL) 2706 continue; 2707 for (k = 0; k < CTL_MAX_INIT_PER_PORT; k++){ 2708 if (lun->pr_keys[j][k] == 0) 2709 continue; 2710 printf(" LUN %d port %d iid %d key " 2711 "%#jx\n", i, j, k, 2712 (uintmax_t)lun->pr_keys[j][k]); 2713 } 2714 } 2715 } 2716 printf("CTL Persistent Reservation information end\n"); 2717 printf("CTL Ports:\n"); 2718 STAILQ_FOREACH(port, &softc->port_list, links) { 2719 printf(" Port %d '%s' Frontend '%s' Type %u pp %d vp %d WWNN " 2720 "%#jx WWPN %#jx\n", port->targ_port, port->port_name, 2721 port->frontend->name, port->port_type, 2722 port->physical_port, port->virtual_port, 2723 (uintmax_t)port->wwnn, (uintmax_t)port->wwpn); 2724 for (j = 0; j < CTL_MAX_INIT_PER_PORT; j++) { 2725 if (port->wwpn_iid[j].in_use == 0 && 2726 port->wwpn_iid[j].wwpn == 0 && 2727 port->wwpn_iid[j].name == NULL) 2728 continue; 2729 2730 printf(" iid %u use %d WWPN %#jx '%s'\n", 2731 j, port->wwpn_iid[j].in_use, 2732 (uintmax_t)port->wwpn_iid[j].wwpn, 2733 port->wwpn_iid[j].name); 2734 } 2735 } 2736 printf("CTL Port information end\n"); 2737 mtx_unlock(&softc->ctl_lock); 2738 /* 2739 * XXX KDM calling this without a lock. We'd likely want 2740 * to drop the lock before calling the frontend's dump 2741 * routine anyway. 2742 */ 2743 printf("CTL Frontends:\n"); 2744 STAILQ_FOREACH(fe, &softc->fe_list, links) { 2745 printf(" Frontend '%s'\n", fe->name); 2746 if (fe->fe_dump != NULL) 2747 fe->fe_dump(); 2748 } 2749 printf("CTL Frontend information end\n"); 2750 break; 2751 } 2752 case CTL_LUN_REQ: { 2753 struct ctl_lun_req *lun_req; 2754 struct ctl_backend_driver *backend; 2755 2756 lun_req = (struct ctl_lun_req *)addr; 2757 2758 backend = ctl_backend_find(lun_req->backend); 2759 if (backend == NULL) { 2760 lun_req->status = CTL_LUN_ERROR; 2761 snprintf(lun_req->error_str, 2762 sizeof(lun_req->error_str), 2763 "Backend \"%s\" not found.", 2764 lun_req->backend); 2765 break; 2766 } 2767 if (lun_req->num_be_args > 0) { 2768 lun_req->kern_be_args = ctl_copyin_args( 2769 lun_req->num_be_args, 2770 lun_req->be_args, 2771 lun_req->error_str, 2772 sizeof(lun_req->error_str)); 2773 if (lun_req->kern_be_args == NULL) { 2774 lun_req->status = CTL_LUN_ERROR; 2775 break; 2776 } 2777 } 2778 2779 retval = backend->ioctl(dev, cmd, addr, flag, td); 2780 2781 if (lun_req->num_be_args > 0) { 2782 ctl_copyout_args(lun_req->num_be_args, 2783 lun_req->kern_be_args); 2784 ctl_free_args(lun_req->num_be_args, 2785 lun_req->kern_be_args); 2786 } 2787 break; 2788 } 2789 case CTL_LUN_LIST: { 2790 struct sbuf *sb; 2791 struct ctl_lun_list *list; 2792 struct ctl_option *opt; 2793 2794 list = (struct ctl_lun_list *)addr; 2795 2796 /* 2797 * Allocate a fixed length sbuf here, based on the length 2798 * of the user's buffer. We could allocate an auto-extending 2799 * buffer, and then tell the user how much larger our 2800 * amount of data is than his buffer, but that presents 2801 * some problems: 2802 * 2803 * 1. The sbuf(9) routines use a blocking malloc, and so 2804 * we can't hold a lock while calling them with an 2805 * auto-extending buffer. 2806 * 2807 * 2. There is not currently a LUN reference counting 2808 * mechanism, outside of outstanding transactions on 2809 * the LUN's OOA queue. So a LUN could go away on us 2810 * while we're getting the LUN number, backend-specific 2811 * information, etc. Thus, given the way things 2812 * currently work, we need to hold the CTL lock while 2813 * grabbing LUN information. 2814 * 2815 * So, from the user's standpoint, the best thing to do is 2816 * allocate what he thinks is a reasonable buffer length, 2817 * and then if he gets a CTL_LUN_LIST_NEED_MORE_SPACE error, 2818 * double the buffer length and try again. (And repeat 2819 * that until he succeeds.) 2820 */ 2821 sb = sbuf_new(NULL, NULL, list->alloc_len, SBUF_FIXEDLEN); 2822 if (sb == NULL) { 2823 list->status = CTL_LUN_LIST_ERROR; 2824 snprintf(list->error_str, sizeof(list->error_str), 2825 "Unable to allocate %d bytes for LUN list", 2826 list->alloc_len); 2827 break; 2828 } 2829 2830 sbuf_printf(sb, "<ctllunlist>\n"); 2831 2832 mtx_lock(&softc->ctl_lock); 2833 STAILQ_FOREACH(lun, &softc->lun_list, links) { 2834 mtx_lock(&lun->lun_lock); 2835 retval = sbuf_printf(sb, "<lun id=\"%ju\">\n", 2836 (uintmax_t)lun->lun); 2837 2838 /* 2839 * Bail out as soon as we see that we've overfilled 2840 * the buffer. 2841 */ 2842 if (retval != 0) 2843 break; 2844 2845 retval = sbuf_printf(sb, "\t<backend_type>%s" 2846 "</backend_type>\n", 2847 (lun->backend == NULL) ? "none" : 2848 lun->backend->name); 2849 2850 if (retval != 0) 2851 break; 2852 2853 retval = sbuf_printf(sb, "\t<lun_type>%d</lun_type>\n", 2854 lun->be_lun->lun_type); 2855 2856 if (retval != 0) 2857 break; 2858 2859 if (lun->backend == NULL) { 2860 retval = sbuf_printf(sb, "</lun>\n"); 2861 if (retval != 0) 2862 break; 2863 continue; 2864 } 2865 2866 retval = sbuf_printf(sb, "\t<size>%ju</size>\n", 2867 (lun->be_lun->maxlba > 0) ? 2868 lun->be_lun->maxlba + 1 : 0); 2869 2870 if (retval != 0) 2871 break; 2872 2873 retval = sbuf_printf(sb, "\t<blocksize>%u</blocksize>\n", 2874 lun->be_lun->blocksize); 2875 2876 if (retval != 0) 2877 break; 2878 2879 retval = sbuf_printf(sb, "\t<serial_number>"); 2880 2881 if (retval != 0) 2882 break; 2883 2884 retval = ctl_sbuf_printf_esc(sb, 2885 lun->be_lun->serial_num, 2886 sizeof(lun->be_lun->serial_num)); 2887 2888 if (retval != 0) 2889 break; 2890 2891 retval = sbuf_printf(sb, "</serial_number>\n"); 2892 2893 if (retval != 0) 2894 break; 2895 2896 retval = sbuf_printf(sb, "\t<device_id>"); 2897 2898 if (retval != 0) 2899 break; 2900 2901 retval = ctl_sbuf_printf_esc(sb, 2902 lun->be_lun->device_id, 2903 sizeof(lun->be_lun->device_id)); 2904 2905 if (retval != 0) 2906 break; 2907 2908 retval = sbuf_printf(sb, "</device_id>\n"); 2909 2910 if (retval != 0) 2911 break; 2912 2913 if (lun->backend->lun_info != NULL) { 2914 retval = lun->backend->lun_info(lun->be_lun->be_lun, sb); 2915 if (retval != 0) 2916 break; 2917 } 2918 STAILQ_FOREACH(opt, &lun->be_lun->options, links) { 2919 retval = sbuf_printf(sb, "\t<%s>%s</%s>\n", 2920 opt->name, opt->value, opt->name); 2921 if (retval != 0) 2922 break; 2923 } 2924 2925 retval = sbuf_printf(sb, "</lun>\n"); 2926 2927 if (retval != 0) 2928 break; 2929 mtx_unlock(&lun->lun_lock); 2930 } 2931 if (lun != NULL) 2932 mtx_unlock(&lun->lun_lock); 2933 mtx_unlock(&softc->ctl_lock); 2934 2935 if ((retval != 0) 2936 || ((retval = sbuf_printf(sb, "</ctllunlist>\n")) != 0)) { 2937 retval = 0; 2938 sbuf_delete(sb); 2939 list->status = CTL_LUN_LIST_NEED_MORE_SPACE; 2940 snprintf(list->error_str, sizeof(list->error_str), 2941 "Out of space, %d bytes is too small", 2942 list->alloc_len); 2943 break; 2944 } 2945 2946 sbuf_finish(sb); 2947 2948 retval = copyout(sbuf_data(sb), list->lun_xml, 2949 sbuf_len(sb) + 1); 2950 2951 list->fill_len = sbuf_len(sb) + 1; 2952 list->status = CTL_LUN_LIST_OK; 2953 sbuf_delete(sb); 2954 break; 2955 } 2956 case CTL_ISCSI: { 2957 struct ctl_iscsi *ci; 2958 struct ctl_frontend *fe; 2959 2960 ci = (struct ctl_iscsi *)addr; 2961 2962 fe = ctl_frontend_find("iscsi"); 2963 if (fe == NULL) { 2964 ci->status = CTL_ISCSI_ERROR; 2965 snprintf(ci->error_str, sizeof(ci->error_str), 2966 "Frontend \"iscsi\" not found."); 2967 break; 2968 } 2969 2970 retval = fe->ioctl(dev, cmd, addr, flag, td); 2971 break; 2972 } 2973 case CTL_PORT_REQ: { 2974 struct ctl_req *req; 2975 struct ctl_frontend *fe; 2976 2977 req = (struct ctl_req *)addr; 2978 2979 fe = ctl_frontend_find(req->driver); 2980 if (fe == NULL) { 2981 req->status = CTL_LUN_ERROR; 2982 snprintf(req->error_str, sizeof(req->error_str), 2983 "Frontend \"%s\" not found.", req->driver); 2984 break; 2985 } 2986 if (req->num_args > 0) { 2987 req->kern_args = ctl_copyin_args(req->num_args, 2988 req->args, req->error_str, sizeof(req->error_str)); 2989 if (req->kern_args == NULL) { 2990 req->status = CTL_LUN_ERROR; 2991 break; 2992 } 2993 } 2994 2995 if (fe->ioctl) 2996 retval = fe->ioctl(dev, cmd, addr, flag, td); 2997 else 2998 retval = ENODEV; 2999 3000 if (req->num_args > 0) { 3001 ctl_copyout_args(req->num_args, req->kern_args); 3002 ctl_free_args(req->num_args, req->kern_args); 3003 } 3004 break; 3005 } 3006 case CTL_PORT_LIST: { 3007 struct sbuf *sb; 3008 struct ctl_port *port; 3009 struct ctl_lun_list *list; 3010 struct ctl_option *opt; 3011 int j; 3012 uint32_t plun; 3013 3014 list = (struct ctl_lun_list *)addr; 3015 3016 sb = sbuf_new(NULL, NULL, list->alloc_len, SBUF_FIXEDLEN); 3017 if (sb == NULL) { 3018 list->status = CTL_LUN_LIST_ERROR; 3019 snprintf(list->error_str, sizeof(list->error_str), 3020 "Unable to allocate %d bytes for LUN list", 3021 list->alloc_len); 3022 break; 3023 } 3024 3025 sbuf_printf(sb, "<ctlportlist>\n"); 3026 3027 mtx_lock(&softc->ctl_lock); 3028 STAILQ_FOREACH(port, &softc->port_list, links) { 3029 retval = sbuf_printf(sb, "<targ_port id=\"%ju\">\n", 3030 (uintmax_t)port->targ_port); 3031 3032 /* 3033 * Bail out as soon as we see that we've overfilled 3034 * the buffer. 3035 */ 3036 if (retval != 0) 3037 break; 3038 3039 retval = sbuf_printf(sb, "\t<frontend_type>%s" 3040 "</frontend_type>\n", port->frontend->name); 3041 if (retval != 0) 3042 break; 3043 3044 retval = sbuf_printf(sb, "\t<port_type>%d</port_type>\n", 3045 port->port_type); 3046 if (retval != 0) 3047 break; 3048 3049 retval = sbuf_printf(sb, "\t<online>%s</online>\n", 3050 (port->status & CTL_PORT_STATUS_ONLINE) ? "YES" : "NO"); 3051 if (retval != 0) 3052 break; 3053 3054 retval = sbuf_printf(sb, "\t<port_name>%s</port_name>\n", 3055 port->port_name); 3056 if (retval != 0) 3057 break; 3058 3059 retval = sbuf_printf(sb, "\t<physical_port>%d</physical_port>\n", 3060 port->physical_port); 3061 if (retval != 0) 3062 break; 3063 3064 retval = sbuf_printf(sb, "\t<virtual_port>%d</virtual_port>\n", 3065 port->virtual_port); 3066 if (retval != 0) 3067 break; 3068 3069 if (port->target_devid != NULL) { 3070 sbuf_printf(sb, "\t<target>"); 3071 ctl_id_sbuf(port->target_devid, sb); 3072 sbuf_printf(sb, "</target>\n"); 3073 } 3074 3075 if (port->port_devid != NULL) { 3076 sbuf_printf(sb, "\t<port>"); 3077 ctl_id_sbuf(port->port_devid, sb); 3078 sbuf_printf(sb, "</port>\n"); 3079 } 3080 3081 if (port->port_info != NULL) { 3082 retval = port->port_info(port->onoff_arg, sb); 3083 if (retval != 0) 3084 break; 3085 } 3086 STAILQ_FOREACH(opt, &port->options, links) { 3087 retval = sbuf_printf(sb, "\t<%s>%s</%s>\n", 3088 opt->name, opt->value, opt->name); 3089 if (retval != 0) 3090 break; 3091 } 3092 3093 if (port->lun_map != NULL) { 3094 sbuf_printf(sb, "\t<lun_map>on</lun_map>\n"); 3095 for (j = 0; j < CTL_MAX_LUNS; j++) { 3096 plun = ctl_lun_map_from_port(port, j); 3097 if (plun >= CTL_MAX_LUNS) 3098 continue; 3099 sbuf_printf(sb, 3100 "\t<lun id=\"%u\">%u</lun>\n", 3101 j, plun); 3102 } 3103 } 3104 3105 for (j = 0; j < CTL_MAX_INIT_PER_PORT; j++) { 3106 if (port->wwpn_iid[j].in_use == 0 || 3107 (port->wwpn_iid[j].wwpn == 0 && 3108 port->wwpn_iid[j].name == NULL)) 3109 continue; 3110 3111 if (port->wwpn_iid[j].name != NULL) 3112 retval = sbuf_printf(sb, 3113 "\t<initiator id=\"%u\">%s</initiator>\n", 3114 j, port->wwpn_iid[j].name); 3115 else 3116 retval = sbuf_printf(sb, 3117 "\t<initiator id=\"%u\">naa.%08jx</initiator>\n", 3118 j, port->wwpn_iid[j].wwpn); 3119 if (retval != 0) 3120 break; 3121 } 3122 if (retval != 0) 3123 break; 3124 3125 retval = sbuf_printf(sb, "</targ_port>\n"); 3126 if (retval != 0) 3127 break; 3128 } 3129 mtx_unlock(&softc->ctl_lock); 3130 3131 if ((retval != 0) 3132 || ((retval = sbuf_printf(sb, "</ctlportlist>\n")) != 0)) { 3133 retval = 0; 3134 sbuf_delete(sb); 3135 list->status = CTL_LUN_LIST_NEED_MORE_SPACE; 3136 snprintf(list->error_str, sizeof(list->error_str), 3137 "Out of space, %d bytes is too small", 3138 list->alloc_len); 3139 break; 3140 } 3141 3142 sbuf_finish(sb); 3143 3144 retval = copyout(sbuf_data(sb), list->lun_xml, 3145 sbuf_len(sb) + 1); 3146 3147 list->fill_len = sbuf_len(sb) + 1; 3148 list->status = CTL_LUN_LIST_OK; 3149 sbuf_delete(sb); 3150 break; 3151 } 3152 case CTL_LUN_MAP: { 3153 struct ctl_lun_map *lm = (struct ctl_lun_map *)addr; 3154 struct ctl_port *port; 3155 3156 mtx_lock(&softc->ctl_lock); 3157 if (lm->port < softc->port_min || 3158 lm->port >= softc->port_max || 3159 (port = softc->ctl_ports[lm->port]) == NULL) { 3160 mtx_unlock(&softc->ctl_lock); 3161 return (ENXIO); 3162 } 3163 if (port->status & CTL_PORT_STATUS_ONLINE) { 3164 STAILQ_FOREACH(lun, &softc->lun_list, links) { 3165 if (ctl_lun_map_to_port(port, lun->lun) >= 3166 CTL_MAX_LUNS) 3167 continue; 3168 mtx_lock(&lun->lun_lock); 3169 ctl_est_ua_port(lun, lm->port, -1, 3170 CTL_UA_LUN_CHANGE); 3171 mtx_unlock(&lun->lun_lock); 3172 } 3173 } 3174 mtx_unlock(&softc->ctl_lock); // XXX: port_enable sleeps 3175 if (lm->plun < CTL_MAX_LUNS) { 3176 if (lm->lun == UINT32_MAX) 3177 retval = ctl_lun_map_unset(port, lm->plun); 3178 else if (lm->lun < CTL_MAX_LUNS && 3179 softc->ctl_luns[lm->lun] != NULL) 3180 retval = ctl_lun_map_set(port, lm->plun, lm->lun); 3181 else 3182 return (ENXIO); 3183 } else if (lm->plun == UINT32_MAX) { 3184 if (lm->lun == UINT32_MAX) 3185 retval = ctl_lun_map_deinit(port); 3186 else 3187 retval = ctl_lun_map_init(port); 3188 } else 3189 return (ENXIO); 3190 if (port->status & CTL_PORT_STATUS_ONLINE) 3191 ctl_isc_announce_port(port); 3192 break; 3193 } 3194 default: { 3195 /* XXX KDM should we fix this? */ 3196#if 0 3197 struct ctl_backend_driver *backend; 3198 unsigned int type; 3199 int found; 3200 3201 found = 0; 3202 3203 /* 3204 * We encode the backend type as the ioctl type for backend 3205 * ioctls. So parse it out here, and then search for a 3206 * backend of this type. 3207 */ 3208 type = _IOC_TYPE(cmd); 3209 3210 STAILQ_FOREACH(backend, &softc->be_list, links) { 3211 if (backend->type == type) { 3212 found = 1; 3213 break; 3214 } 3215 } 3216 if (found == 0) { 3217 printf("ctl: unknown ioctl command %#lx or backend " 3218 "%d\n", cmd, type); 3219 retval = EINVAL; 3220 break; 3221 } 3222 retval = backend->ioctl(dev, cmd, addr, flag, td); 3223#endif 3224 retval = ENOTTY; 3225 break; 3226 } 3227 } 3228 return (retval); 3229} 3230 3231uint32_t 3232ctl_get_initindex(struct ctl_nexus *nexus) 3233{ 3234 return (nexus->initid + (nexus->targ_port * CTL_MAX_INIT_PER_PORT)); 3235} 3236 3237int 3238ctl_lun_map_init(struct ctl_port *port) 3239{ 3240 struct ctl_softc *softc = control_softc; 3241 struct ctl_lun *lun; 3242 uint32_t i; 3243 3244 if (port->lun_map == NULL) 3245 port->lun_map = malloc(sizeof(uint32_t) * CTL_MAX_LUNS, 3246 M_CTL, M_NOWAIT); 3247 if (port->lun_map == NULL) 3248 return (ENOMEM); 3249 for (i = 0; i < CTL_MAX_LUNS; i++) 3250 port->lun_map[i] = UINT32_MAX; 3251 if (port->status & CTL_PORT_STATUS_ONLINE) { 3252 if (port->lun_disable != NULL) { 3253 STAILQ_FOREACH(lun, &softc->lun_list, links) 3254 port->lun_disable(port->targ_lun_arg, lun->lun); 3255 } 3256 ctl_isc_announce_port(port); 3257 } 3258 return (0); 3259} 3260 3261int 3262ctl_lun_map_deinit(struct ctl_port *port) 3263{ 3264 struct ctl_softc *softc = control_softc; 3265 struct ctl_lun *lun; 3266 3267 if (port->lun_map == NULL) 3268 return (0); 3269 free(port->lun_map, M_CTL); 3270 port->lun_map = NULL; 3271 if (port->status & CTL_PORT_STATUS_ONLINE) { 3272 if (port->lun_enable != NULL) { 3273 STAILQ_FOREACH(lun, &softc->lun_list, links) 3274 port->lun_enable(port->targ_lun_arg, lun->lun); 3275 } 3276 ctl_isc_announce_port(port); 3277 } 3278 return (0); 3279} 3280 3281int 3282ctl_lun_map_set(struct ctl_port *port, uint32_t plun, uint32_t glun) 3283{ 3284 int status; 3285 uint32_t old; 3286 3287 if (port->lun_map == NULL) { 3288 status = ctl_lun_map_init(port); 3289 if (status != 0) 3290 return (status); 3291 } 3292 old = port->lun_map[plun]; 3293 port->lun_map[plun] = glun; 3294 if ((port->status & CTL_PORT_STATUS_ONLINE) && old >= CTL_MAX_LUNS) { 3295 if (port->lun_enable != NULL) 3296 port->lun_enable(port->targ_lun_arg, plun); 3297 ctl_isc_announce_port(port); 3298 } 3299 return (0); 3300} 3301 3302int 3303ctl_lun_map_unset(struct ctl_port *port, uint32_t plun) 3304{ 3305 uint32_t old; 3306 3307 if (port->lun_map == NULL) 3308 return (0); 3309 old = port->lun_map[plun]; 3310 port->lun_map[plun] = UINT32_MAX; 3311 if ((port->status & CTL_PORT_STATUS_ONLINE) && old < CTL_MAX_LUNS) { 3312 if (port->lun_disable != NULL) 3313 port->lun_disable(port->targ_lun_arg, plun); 3314 ctl_isc_announce_port(port); 3315 } 3316 return (0); 3317} 3318 3319uint32_t 3320ctl_lun_map_from_port(struct ctl_port *port, uint32_t lun_id) 3321{ 3322 3323 if (port == NULL) 3324 return (UINT32_MAX); 3325 if (port->lun_map == NULL || lun_id >= CTL_MAX_LUNS) 3326 return (lun_id); 3327 return (port->lun_map[lun_id]); 3328} 3329 3330uint32_t 3331ctl_lun_map_to_port(struct ctl_port *port, uint32_t lun_id) 3332{ 3333 uint32_t i; 3334 3335 if (port == NULL) 3336 return (UINT32_MAX); 3337 if (port->lun_map == NULL) 3338 return (lun_id); 3339 for (i = 0; i < CTL_MAX_LUNS; i++) { 3340 if (port->lun_map[i] == lun_id) 3341 return (i); 3342 } 3343 return (UINT32_MAX); 3344} 3345 3346static struct ctl_port * 3347ctl_io_port(struct ctl_io_hdr *io_hdr) 3348{ 3349 3350 return (control_softc->ctl_ports[io_hdr->nexus.targ_port]); 3351} 3352 3353int 3354ctl_ffz(uint32_t *mask, uint32_t first, uint32_t last) 3355{ 3356 int i; 3357 3358 for (i = first; i < last; i++) { 3359 if ((mask[i / 32] & (1 << (i % 32))) == 0) 3360 return (i); 3361 } 3362 return (-1); 3363} 3364 3365int 3366ctl_set_mask(uint32_t *mask, uint32_t bit) 3367{ 3368 uint32_t chunk, piece; 3369 3370 chunk = bit >> 5; 3371 piece = bit % (sizeof(uint32_t) * 8); 3372 3373 if ((mask[chunk] & (1 << piece)) != 0) 3374 return (-1); 3375 else 3376 mask[chunk] |= (1 << piece); 3377 3378 return (0); 3379} 3380 3381int 3382ctl_clear_mask(uint32_t *mask, uint32_t bit) 3383{ 3384 uint32_t chunk, piece; 3385 3386 chunk = bit >> 5; 3387 piece = bit % (sizeof(uint32_t) * 8); 3388 3389 if ((mask[chunk] & (1 << piece)) == 0) 3390 return (-1); 3391 else 3392 mask[chunk] &= ~(1 << piece); 3393 3394 return (0); 3395} 3396 3397int 3398ctl_is_set(uint32_t *mask, uint32_t bit) 3399{ 3400 uint32_t chunk, piece; 3401 3402 chunk = bit >> 5; 3403 piece = bit % (sizeof(uint32_t) * 8); 3404 3405 if ((mask[chunk] & (1 << piece)) == 0) 3406 return (0); 3407 else 3408 return (1); 3409} 3410 3411static uint64_t 3412ctl_get_prkey(struct ctl_lun *lun, uint32_t residx) 3413{ 3414 uint64_t *t; 3415 3416 t = lun->pr_keys[residx/CTL_MAX_INIT_PER_PORT]; 3417 if (t == NULL) 3418 return (0); 3419 return (t[residx % CTL_MAX_INIT_PER_PORT]); 3420} 3421 3422static void 3423ctl_clr_prkey(struct ctl_lun *lun, uint32_t residx) 3424{ 3425 uint64_t *t; 3426 3427 t = lun->pr_keys[residx/CTL_MAX_INIT_PER_PORT]; 3428 if (t == NULL) 3429 return; 3430 t[residx % CTL_MAX_INIT_PER_PORT] = 0; 3431} 3432 3433static void 3434ctl_alloc_prkey(struct ctl_lun *lun, uint32_t residx) 3435{ 3436 uint64_t *p; 3437 u_int i; 3438 3439 i = residx/CTL_MAX_INIT_PER_PORT; 3440 if (lun->pr_keys[i] != NULL) 3441 return; 3442 mtx_unlock(&lun->lun_lock); 3443 p = malloc(sizeof(uint64_t) * CTL_MAX_INIT_PER_PORT, M_CTL, 3444 M_WAITOK | M_ZERO); 3445 mtx_lock(&lun->lun_lock); 3446 if (lun->pr_keys[i] == NULL) 3447 lun->pr_keys[i] = p; 3448 else 3449 free(p, M_CTL); 3450} 3451 3452static void 3453ctl_set_prkey(struct ctl_lun *lun, uint32_t residx, uint64_t key) 3454{ 3455 uint64_t *t; 3456 3457 t = lun->pr_keys[residx/CTL_MAX_INIT_PER_PORT]; 3458 KASSERT(t != NULL, ("prkey %d is not allocated", residx)); 3459 t[residx % CTL_MAX_INIT_PER_PORT] = key; 3460} 3461 3462/* 3463 * ctl_softc, pool_name, total_ctl_io are passed in. 3464 * npool is passed out. 3465 */ 3466int 3467ctl_pool_create(struct ctl_softc *ctl_softc, const char *pool_name, 3468 uint32_t total_ctl_io, void **npool) 3469{ 3470#ifdef IO_POOLS 3471 struct ctl_io_pool *pool; 3472 3473 pool = (struct ctl_io_pool *)malloc(sizeof(*pool), M_CTL, 3474 M_NOWAIT | M_ZERO); 3475 if (pool == NULL) 3476 return (ENOMEM); 3477 3478 snprintf(pool->name, sizeof(pool->name), "CTL IO %s", pool_name); 3479 pool->ctl_softc = ctl_softc; 3480 pool->zone = uma_zsecond_create(pool->name, NULL, 3481 NULL, NULL, NULL, ctl_softc->io_zone); 3482 /* uma_prealloc(pool->zone, total_ctl_io); */ 3483 3484 *npool = pool; 3485#else 3486 *npool = ctl_softc->io_zone; 3487#endif 3488 return (0); 3489} 3490 3491void 3492ctl_pool_free(struct ctl_io_pool *pool) 3493{ 3494 3495 if (pool == NULL) 3496 return; 3497 3498#ifdef IO_POOLS 3499 uma_zdestroy(pool->zone); 3500 free(pool, M_CTL); 3501#endif 3502} 3503 3504union ctl_io * 3505ctl_alloc_io(void *pool_ref) 3506{ 3507 union ctl_io *io; 3508#ifdef IO_POOLS 3509 struct ctl_io_pool *pool = (struct ctl_io_pool *)pool_ref; 3510 3511 io = uma_zalloc(pool->zone, M_WAITOK); 3512#else 3513 io = uma_zalloc((uma_zone_t)pool_ref, M_WAITOK); 3514#endif 3515 if (io != NULL) 3516 io->io_hdr.pool = pool_ref; 3517 return (io); 3518} 3519 3520union ctl_io * 3521ctl_alloc_io_nowait(void *pool_ref) 3522{ 3523 union ctl_io *io; 3524#ifdef IO_POOLS 3525 struct ctl_io_pool *pool = (struct ctl_io_pool *)pool_ref; 3526 3527 io = uma_zalloc(pool->zone, M_NOWAIT); 3528#else 3529 io = uma_zalloc((uma_zone_t)pool_ref, M_NOWAIT); 3530#endif 3531 if (io != NULL) 3532 io->io_hdr.pool = pool_ref; 3533 return (io); 3534} 3535 3536void 3537ctl_free_io(union ctl_io *io) 3538{ 3539#ifdef IO_POOLS 3540 struct ctl_io_pool *pool; 3541#endif 3542 3543 if (io == NULL) 3544 return; 3545 3546#ifdef IO_POOLS 3547 pool = (struct ctl_io_pool *)io->io_hdr.pool; 3548 uma_zfree(pool->zone, io); 3549#else 3550 uma_zfree((uma_zone_t)io->io_hdr.pool, io); 3551#endif 3552} 3553 3554void 3555ctl_zero_io(union ctl_io *io) 3556{ 3557 void *pool_ref; 3558 3559 if (io == NULL) 3560 return; 3561 3562 /* 3563 * May need to preserve linked list pointers at some point too. 3564 */ 3565 pool_ref = io->io_hdr.pool; 3566 memset(io, 0, sizeof(*io)); 3567 io->io_hdr.pool = pool_ref; 3568} 3569 3570/* 3571 * This routine is currently used for internal copies of ctl_ios that need 3572 * to persist for some reason after we've already returned status to the 3573 * FETD. (Thus the flag set.) 3574 * 3575 * XXX XXX 3576 * Note that this makes a blind copy of all fields in the ctl_io, except 3577 * for the pool reference. This includes any memory that has been 3578 * allocated! That memory will no longer be valid after done has been 3579 * called, so this would be VERY DANGEROUS for command that actually does 3580 * any reads or writes. Right now (11/7/2005), this is only used for immediate 3581 * start and stop commands, which don't transfer any data, so this is not a 3582 * problem. If it is used for anything else, the caller would also need to 3583 * allocate data buffer space and this routine would need to be modified to 3584 * copy the data buffer(s) as well. 3585 */ 3586void 3587ctl_copy_io(union ctl_io *src, union ctl_io *dest) 3588{ 3589 void *pool_ref; 3590 3591 if ((src == NULL) 3592 || (dest == NULL)) 3593 return; 3594 3595 /* 3596 * May need to preserve linked list pointers at some point too. 3597 */ 3598 pool_ref = dest->io_hdr.pool; 3599 3600 memcpy(dest, src, MIN(sizeof(*src), sizeof(*dest))); 3601 3602 dest->io_hdr.pool = pool_ref; 3603 /* 3604 * We need to know that this is an internal copy, and doesn't need 3605 * to get passed back to the FETD that allocated it. 3606 */ 3607 dest->io_hdr.flags |= CTL_FLAG_INT_COPY; 3608} 3609 3610int 3611ctl_expand_number(const char *buf, uint64_t *num) 3612{ 3613 char *endptr; 3614 uint64_t number; 3615 unsigned shift; 3616 3617 number = strtoq(buf, &endptr, 0); 3618 3619 switch (tolower((unsigned char)*endptr)) { 3620 case 'e': 3621 shift = 60; 3622 break; 3623 case 'p': 3624 shift = 50; 3625 break; 3626 case 't': 3627 shift = 40; 3628 break; 3629 case 'g': 3630 shift = 30; 3631 break; 3632 case 'm': 3633 shift = 20; 3634 break; 3635 case 'k': 3636 shift = 10; 3637 break; 3638 case 'b': 3639 case '\0': /* No unit. */ 3640 *num = number; 3641 return (0); 3642 default: 3643 /* Unrecognized unit. */ 3644 return (-1); 3645 } 3646 3647 if ((number << shift) >> shift != number) { 3648 /* Overflow */ 3649 return (-1); 3650 } 3651 *num = number << shift; 3652 return (0); 3653} 3654 3655 3656/* 3657 * This routine could be used in the future to load default and/or saved 3658 * mode page parameters for a particuar lun. 3659 */ 3660static int 3661ctl_init_page_index(struct ctl_lun *lun) 3662{ 3663 int i; 3664 struct ctl_page_index *page_index; 3665 const char *value; 3666 uint64_t ival; 3667 3668 memcpy(&lun->mode_pages.index, page_index_template, 3669 sizeof(page_index_template)); 3670 3671 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 3672 3673 page_index = &lun->mode_pages.index[i]; 3674 /* 3675 * If this is a disk-only mode page, there's no point in 3676 * setting it up. For some pages, we have to have some 3677 * basic information about the disk in order to calculate the 3678 * mode page data. 3679 */ 3680 if ((lun->be_lun->lun_type != T_DIRECT) 3681 && (page_index->page_flags & CTL_PAGE_FLAG_DISK_ONLY)) 3682 continue; 3683 3684 switch (page_index->page_code & SMPH_PC_MASK) { 3685 case SMS_RW_ERROR_RECOVERY_PAGE: { 3686 if (page_index->subpage != SMS_SUBPAGE_PAGE_0) 3687 panic("subpage is incorrect!"); 3688 memcpy(&lun->mode_pages.rw_er_page[CTL_PAGE_CURRENT], 3689 &rw_er_page_default, 3690 sizeof(rw_er_page_default)); 3691 memcpy(&lun->mode_pages.rw_er_page[CTL_PAGE_CHANGEABLE], 3692 &rw_er_page_changeable, 3693 sizeof(rw_er_page_changeable)); 3694 memcpy(&lun->mode_pages.rw_er_page[CTL_PAGE_DEFAULT], 3695 &rw_er_page_default, 3696 sizeof(rw_er_page_default)); 3697 memcpy(&lun->mode_pages.rw_er_page[CTL_PAGE_SAVED], 3698 &rw_er_page_default, 3699 sizeof(rw_er_page_default)); 3700 page_index->page_data = 3701 (uint8_t *)lun->mode_pages.rw_er_page; 3702 break; 3703 } 3704 case SMS_FORMAT_DEVICE_PAGE: { 3705 struct scsi_format_page *format_page; 3706 3707 if (page_index->subpage != SMS_SUBPAGE_PAGE_0) 3708 panic("subpage is incorrect!"); 3709 3710 /* 3711 * Sectors per track are set above. Bytes per 3712 * sector need to be set here on a per-LUN basis. 3713 */ 3714 memcpy(&lun->mode_pages.format_page[CTL_PAGE_CURRENT], 3715 &format_page_default, 3716 sizeof(format_page_default)); 3717 memcpy(&lun->mode_pages.format_page[ 3718 CTL_PAGE_CHANGEABLE], &format_page_changeable, 3719 sizeof(format_page_changeable)); 3720 memcpy(&lun->mode_pages.format_page[CTL_PAGE_DEFAULT], 3721 &format_page_default, 3722 sizeof(format_page_default)); 3723 memcpy(&lun->mode_pages.format_page[CTL_PAGE_SAVED], 3724 &format_page_default, 3725 sizeof(format_page_default)); 3726 3727 format_page = &lun->mode_pages.format_page[ 3728 CTL_PAGE_CURRENT]; 3729 scsi_ulto2b(lun->be_lun->blocksize, 3730 format_page->bytes_per_sector); 3731 3732 format_page = &lun->mode_pages.format_page[ 3733 CTL_PAGE_DEFAULT]; 3734 scsi_ulto2b(lun->be_lun->blocksize, 3735 format_page->bytes_per_sector); 3736 3737 format_page = &lun->mode_pages.format_page[ 3738 CTL_PAGE_SAVED]; 3739 scsi_ulto2b(lun->be_lun->blocksize, 3740 format_page->bytes_per_sector); 3741 3742 page_index->page_data = 3743 (uint8_t *)lun->mode_pages.format_page; 3744 break; 3745 } 3746 case SMS_RIGID_DISK_PAGE: { 3747 struct scsi_rigid_disk_page *rigid_disk_page; 3748 uint32_t sectors_per_cylinder; 3749 uint64_t cylinders; 3750#ifndef __XSCALE__ 3751 int shift; 3752#endif /* !__XSCALE__ */ 3753 3754 if (page_index->subpage != SMS_SUBPAGE_PAGE_0) 3755 panic("invalid subpage value %d", 3756 page_index->subpage); 3757 3758 /* 3759 * Rotation rate and sectors per track are set 3760 * above. We calculate the cylinders here based on 3761 * capacity. Due to the number of heads and 3762 * sectors per track we're using, smaller arrays 3763 * may turn out to have 0 cylinders. Linux and 3764 * FreeBSD don't pay attention to these mode pages 3765 * to figure out capacity, but Solaris does. It 3766 * seems to deal with 0 cylinders just fine, and 3767 * works out a fake geometry based on the capacity. 3768 */ 3769 memcpy(&lun->mode_pages.rigid_disk_page[ 3770 CTL_PAGE_DEFAULT], &rigid_disk_page_default, 3771 sizeof(rigid_disk_page_default)); 3772 memcpy(&lun->mode_pages.rigid_disk_page[ 3773 CTL_PAGE_CHANGEABLE],&rigid_disk_page_changeable, 3774 sizeof(rigid_disk_page_changeable)); 3775 3776 sectors_per_cylinder = CTL_DEFAULT_SECTORS_PER_TRACK * 3777 CTL_DEFAULT_HEADS; 3778 3779 /* 3780 * The divide method here will be more accurate, 3781 * probably, but results in floating point being 3782 * used in the kernel on i386 (__udivdi3()). On the 3783 * XScale, though, __udivdi3() is implemented in 3784 * software. 3785 * 3786 * The shift method for cylinder calculation is 3787 * accurate if sectors_per_cylinder is a power of 3788 * 2. Otherwise it might be slightly off -- you 3789 * might have a bit of a truncation problem. 3790 */ 3791#ifdef __XSCALE__ 3792 cylinders = (lun->be_lun->maxlba + 1) / 3793 sectors_per_cylinder; 3794#else 3795 for (shift = 31; shift > 0; shift--) { 3796 if (sectors_per_cylinder & (1 << shift)) 3797 break; 3798 } 3799 cylinders = (lun->be_lun->maxlba + 1) >> shift; 3800#endif 3801 3802 /* 3803 * We've basically got 3 bytes, or 24 bits for the 3804 * cylinder size in the mode page. If we're over, 3805 * just round down to 2^24. 3806 */ 3807 if (cylinders > 0xffffff) 3808 cylinders = 0xffffff; 3809 3810 rigid_disk_page = &lun->mode_pages.rigid_disk_page[ 3811 CTL_PAGE_DEFAULT]; 3812 scsi_ulto3b(cylinders, rigid_disk_page->cylinders); 3813 3814 if ((value = ctl_get_opt(&lun->be_lun->options, 3815 "rpm")) != NULL) { 3816 scsi_ulto2b(strtol(value, NULL, 0), 3817 rigid_disk_page->rotation_rate); 3818 } 3819 3820 memcpy(&lun->mode_pages.rigid_disk_page[CTL_PAGE_CURRENT], 3821 &lun->mode_pages.rigid_disk_page[CTL_PAGE_DEFAULT], 3822 sizeof(rigid_disk_page_default)); 3823 memcpy(&lun->mode_pages.rigid_disk_page[CTL_PAGE_SAVED], 3824 &lun->mode_pages.rigid_disk_page[CTL_PAGE_DEFAULT], 3825 sizeof(rigid_disk_page_default)); 3826 3827 page_index->page_data = 3828 (uint8_t *)lun->mode_pages.rigid_disk_page; 3829 break; 3830 } 3831 case SMS_CACHING_PAGE: { 3832 struct scsi_caching_page *caching_page; 3833 3834 if (page_index->subpage != SMS_SUBPAGE_PAGE_0) 3835 panic("invalid subpage value %d", 3836 page_index->subpage); 3837 memcpy(&lun->mode_pages.caching_page[CTL_PAGE_DEFAULT], 3838 &caching_page_default, 3839 sizeof(caching_page_default)); 3840 memcpy(&lun->mode_pages.caching_page[ 3841 CTL_PAGE_CHANGEABLE], &caching_page_changeable, 3842 sizeof(caching_page_changeable)); 3843 memcpy(&lun->mode_pages.caching_page[CTL_PAGE_SAVED], 3844 &caching_page_default, 3845 sizeof(caching_page_default)); 3846 caching_page = &lun->mode_pages.caching_page[ 3847 CTL_PAGE_SAVED]; 3848 value = ctl_get_opt(&lun->be_lun->options, "writecache"); 3849 if (value != NULL && strcmp(value, "off") == 0) 3850 caching_page->flags1 &= ~SCP_WCE; 3851 value = ctl_get_opt(&lun->be_lun->options, "readcache"); 3852 if (value != NULL && strcmp(value, "off") == 0) 3853 caching_page->flags1 |= SCP_RCD; 3854 memcpy(&lun->mode_pages.caching_page[CTL_PAGE_CURRENT], 3855 &lun->mode_pages.caching_page[CTL_PAGE_SAVED], 3856 sizeof(caching_page_default)); 3857 page_index->page_data = 3858 (uint8_t *)lun->mode_pages.caching_page; 3859 break; 3860 } 3861 case SMS_CONTROL_MODE_PAGE: { 3862 struct scsi_control_page *control_page; 3863 3864 if (page_index->subpage != SMS_SUBPAGE_PAGE_0) 3865 panic("invalid subpage value %d", 3866 page_index->subpage); 3867 3868 memcpy(&lun->mode_pages.control_page[CTL_PAGE_DEFAULT], 3869 &control_page_default, 3870 sizeof(control_page_default)); 3871 memcpy(&lun->mode_pages.control_page[ 3872 CTL_PAGE_CHANGEABLE], &control_page_changeable, 3873 sizeof(control_page_changeable)); 3874 memcpy(&lun->mode_pages.control_page[CTL_PAGE_SAVED], 3875 &control_page_default, 3876 sizeof(control_page_default)); 3877 control_page = &lun->mode_pages.control_page[ 3878 CTL_PAGE_SAVED]; 3879 value = ctl_get_opt(&lun->be_lun->options, "reordering"); 3880 if (value != NULL && strcmp(value, "unrestricted") == 0) { 3881 control_page->queue_flags &= ~SCP_QUEUE_ALG_MASK; 3882 control_page->queue_flags |= SCP_QUEUE_ALG_UNRESTRICTED; 3883 } 3884 memcpy(&lun->mode_pages.control_page[CTL_PAGE_CURRENT], 3885 &lun->mode_pages.control_page[CTL_PAGE_SAVED], 3886 sizeof(control_page_default)); 3887 page_index->page_data = 3888 (uint8_t *)lun->mode_pages.control_page; 3889 break; 3890 3891 } 3892 case SMS_INFO_EXCEPTIONS_PAGE: { 3893 switch (page_index->subpage) { 3894 case SMS_SUBPAGE_PAGE_0: 3895 memcpy(&lun->mode_pages.ie_page[CTL_PAGE_CURRENT], 3896 &ie_page_default, 3897 sizeof(ie_page_default)); 3898 memcpy(&lun->mode_pages.ie_page[ 3899 CTL_PAGE_CHANGEABLE], &ie_page_changeable, 3900 sizeof(ie_page_changeable)); 3901 memcpy(&lun->mode_pages.ie_page[CTL_PAGE_DEFAULT], 3902 &ie_page_default, 3903 sizeof(ie_page_default)); 3904 memcpy(&lun->mode_pages.ie_page[CTL_PAGE_SAVED], 3905 &ie_page_default, 3906 sizeof(ie_page_default)); 3907 page_index->page_data = 3908 (uint8_t *)lun->mode_pages.ie_page; 3909 break; 3910 case 0x02: { 3911 struct ctl_logical_block_provisioning_page *page; 3912 3913 memcpy(&lun->mode_pages.lbp_page[CTL_PAGE_DEFAULT], 3914 &lbp_page_default, 3915 sizeof(lbp_page_default)); 3916 memcpy(&lun->mode_pages.lbp_page[ 3917 CTL_PAGE_CHANGEABLE], &lbp_page_changeable, 3918 sizeof(lbp_page_changeable)); 3919 memcpy(&lun->mode_pages.lbp_page[CTL_PAGE_SAVED], 3920 &lbp_page_default, 3921 sizeof(lbp_page_default)); 3922 page = &lun->mode_pages.lbp_page[CTL_PAGE_SAVED]; 3923 value = ctl_get_opt(&lun->be_lun->options, 3924 "avail-threshold"); 3925 if (value != NULL && 3926 ctl_expand_number(value, &ival) == 0) { 3927 page->descr[0].flags |= SLBPPD_ENABLED | 3928 SLBPPD_ARMING_DEC; 3929 if (lun->be_lun->blocksize) 3930 ival /= lun->be_lun->blocksize; 3931 else 3932 ival /= 512; 3933 scsi_ulto4b(ival >> CTL_LBP_EXPONENT, 3934 page->descr[0].count); 3935 } 3936 value = ctl_get_opt(&lun->be_lun->options, 3937 "used-threshold"); 3938 if (value != NULL && 3939 ctl_expand_number(value, &ival) == 0) { 3940 page->descr[1].flags |= SLBPPD_ENABLED | 3941 SLBPPD_ARMING_INC; 3942 if (lun->be_lun->blocksize) 3943 ival /= lun->be_lun->blocksize; 3944 else 3945 ival /= 512; 3946 scsi_ulto4b(ival >> CTL_LBP_EXPONENT, 3947 page->descr[1].count); 3948 } 3949 value = ctl_get_opt(&lun->be_lun->options, 3950 "pool-avail-threshold"); 3951 if (value != NULL && 3952 ctl_expand_number(value, &ival) == 0) { 3953 page->descr[2].flags |= SLBPPD_ENABLED | 3954 SLBPPD_ARMING_DEC; 3955 if (lun->be_lun->blocksize) 3956 ival /= lun->be_lun->blocksize; 3957 else 3958 ival /= 512; 3959 scsi_ulto4b(ival >> CTL_LBP_EXPONENT, 3960 page->descr[2].count); 3961 } 3962 value = ctl_get_opt(&lun->be_lun->options, 3963 "pool-used-threshold"); 3964 if (value != NULL && 3965 ctl_expand_number(value, &ival) == 0) { 3966 page->descr[3].flags |= SLBPPD_ENABLED | 3967 SLBPPD_ARMING_INC; 3968 if (lun->be_lun->blocksize) 3969 ival /= lun->be_lun->blocksize; 3970 else 3971 ival /= 512; 3972 scsi_ulto4b(ival >> CTL_LBP_EXPONENT, 3973 page->descr[3].count); 3974 } 3975 memcpy(&lun->mode_pages.lbp_page[CTL_PAGE_CURRENT], 3976 &lun->mode_pages.lbp_page[CTL_PAGE_SAVED], 3977 sizeof(lbp_page_default)); 3978 page_index->page_data = 3979 (uint8_t *)lun->mode_pages.lbp_page; 3980 }} 3981 break; 3982 } 3983 case SMS_VENDOR_SPECIFIC_PAGE:{ 3984 switch (page_index->subpage) { 3985 case DBGCNF_SUBPAGE_CODE: { 3986 struct copan_debugconf_subpage *current_page, 3987 *saved_page; 3988 3989 memcpy(&lun->mode_pages.debugconf_subpage[ 3990 CTL_PAGE_CURRENT], 3991 &debugconf_page_default, 3992 sizeof(debugconf_page_default)); 3993 memcpy(&lun->mode_pages.debugconf_subpage[ 3994 CTL_PAGE_CHANGEABLE], 3995 &debugconf_page_changeable, 3996 sizeof(debugconf_page_changeable)); 3997 memcpy(&lun->mode_pages.debugconf_subpage[ 3998 CTL_PAGE_DEFAULT], 3999 &debugconf_page_default, 4000 sizeof(debugconf_page_default)); 4001 memcpy(&lun->mode_pages.debugconf_subpage[ 4002 CTL_PAGE_SAVED], 4003 &debugconf_page_default, 4004 sizeof(debugconf_page_default)); 4005 page_index->page_data = 4006 (uint8_t *)lun->mode_pages.debugconf_subpage; 4007 4008 current_page = (struct copan_debugconf_subpage *) 4009 (page_index->page_data + 4010 (page_index->page_len * 4011 CTL_PAGE_CURRENT)); 4012 saved_page = (struct copan_debugconf_subpage *) 4013 (page_index->page_data + 4014 (page_index->page_len * 4015 CTL_PAGE_SAVED)); 4016 break; 4017 } 4018 default: 4019 panic("invalid subpage value %d", 4020 page_index->subpage); 4021 break; 4022 } 4023 break; 4024 } 4025 default: 4026 panic("invalid page value %d", 4027 page_index->page_code & SMPH_PC_MASK); 4028 break; 4029 } 4030 } 4031 4032 return (CTL_RETVAL_COMPLETE); 4033} 4034 4035static int 4036ctl_init_log_page_index(struct ctl_lun *lun) 4037{ 4038 struct ctl_page_index *page_index; 4039 int i, j, k, prev; 4040 4041 memcpy(&lun->log_pages.index, log_page_index_template, 4042 sizeof(log_page_index_template)); 4043 4044 prev = -1; 4045 for (i = 0, j = 0, k = 0; i < CTL_NUM_LOG_PAGES; i++) { 4046 4047 page_index = &lun->log_pages.index[i]; 4048 /* 4049 * If this is a disk-only mode page, there's no point in 4050 * setting it up. For some pages, we have to have some 4051 * basic information about the disk in order to calculate the 4052 * mode page data. 4053 */ 4054 if ((lun->be_lun->lun_type != T_DIRECT) 4055 && (page_index->page_flags & CTL_PAGE_FLAG_DISK_ONLY)) 4056 continue; 4057 4058 if (page_index->page_code == SLS_LOGICAL_BLOCK_PROVISIONING && 4059 lun->backend->lun_attr == NULL) 4060 continue; 4061 4062 if (page_index->page_code != prev) { 4063 lun->log_pages.pages_page[j] = page_index->page_code; 4064 prev = page_index->page_code; 4065 j++; 4066 } 4067 lun->log_pages.subpages_page[k*2] = page_index->page_code; 4068 lun->log_pages.subpages_page[k*2+1] = page_index->subpage; 4069 k++; 4070 } 4071 lun->log_pages.index[0].page_data = &lun->log_pages.pages_page[0]; 4072 lun->log_pages.index[0].page_len = j; 4073 lun->log_pages.index[1].page_data = &lun->log_pages.subpages_page[0]; 4074 lun->log_pages.index[1].page_len = k * 2; 4075 lun->log_pages.index[2].page_data = &lun->log_pages.lbp_page[0]; 4076 lun->log_pages.index[2].page_len = 12*CTL_NUM_LBP_PARAMS; 4077 lun->log_pages.index[3].page_data = (uint8_t *)&lun->log_pages.stat_page; 4078 lun->log_pages.index[3].page_len = sizeof(lun->log_pages.stat_page); 4079 4080 return (CTL_RETVAL_COMPLETE); 4081} 4082 4083static int 4084hex2bin(const char *str, uint8_t *buf, int buf_size) 4085{ 4086 int i; 4087 u_char c; 4088 4089 memset(buf, 0, buf_size); 4090 while (isspace(str[0])) 4091 str++; 4092 if (str[0] == '0' && (str[1] == 'x' || str[1] == 'X')) 4093 str += 2; 4094 buf_size *= 2; 4095 for (i = 0; str[i] != 0 && i < buf_size; i++) { 4096 c = str[i]; 4097 if (isdigit(c)) 4098 c -= '0'; 4099 else if (isalpha(c)) 4100 c -= isupper(c) ? 'A' - 10 : 'a' - 10; 4101 else 4102 break; 4103 if (c >= 16) 4104 break; 4105 if ((i & 1) == 0) 4106 buf[i / 2] |= (c << 4); 4107 else 4108 buf[i / 2] |= c; 4109 } 4110 return ((i + 1) / 2); 4111} 4112 4113/* 4114 * LUN allocation. 4115 * 4116 * Requirements: 4117 * - caller allocates and zeros LUN storage, or passes in a NULL LUN if he 4118 * wants us to allocate the LUN and he can block. 4119 * - ctl_softc is always set 4120 * - be_lun is set if the LUN has a backend (needed for disk LUNs) 4121 * 4122 * Returns 0 for success, non-zero (errno) for failure. 4123 */ 4124static int 4125ctl_alloc_lun(struct ctl_softc *ctl_softc, struct ctl_lun *ctl_lun, 4126 struct ctl_be_lun *const be_lun) 4127{ 4128 struct ctl_lun *nlun, *lun; 4129 struct scsi_vpd_id_descriptor *desc; 4130 struct scsi_vpd_id_t10 *t10id; 4131 const char *eui, *naa, *scsiname, *vendor; 4132 int lun_number, i, lun_malloced; 4133 int devidlen, idlen1, idlen2 = 0, len; 4134 4135 if (be_lun == NULL) 4136 return (EINVAL); 4137 4138 /* 4139 * We currently only support Direct Access or Processor LUN types. 4140 */ 4141 switch (be_lun->lun_type) { 4142 case T_DIRECT: 4143 break; 4144 case T_PROCESSOR: 4145 break; 4146 case T_SEQUENTIAL: 4147 case T_CHANGER: 4148 default: 4149 be_lun->lun_config_status(be_lun->be_lun, 4150 CTL_LUN_CONFIG_FAILURE); 4151 break; 4152 } 4153 if (ctl_lun == NULL) { 4154 lun = malloc(sizeof(*lun), M_CTL, M_WAITOK); 4155 lun_malloced = 1; 4156 } else { 4157 lun_malloced = 0; 4158 lun = ctl_lun; 4159 } 4160 4161 memset(lun, 0, sizeof(*lun)); 4162 if (lun_malloced) 4163 lun->flags = CTL_LUN_MALLOCED; 4164 4165 /* Generate LUN ID. */ 4166 devidlen = max(CTL_DEVID_MIN_LEN, 4167 strnlen(be_lun->device_id, CTL_DEVID_LEN)); 4168 idlen1 = sizeof(*t10id) + devidlen; 4169 len = sizeof(struct scsi_vpd_id_descriptor) + idlen1; 4170 scsiname = ctl_get_opt(&be_lun->options, "scsiname"); 4171 if (scsiname != NULL) { 4172 idlen2 = roundup2(strlen(scsiname) + 1, 4); 4173 len += sizeof(struct scsi_vpd_id_descriptor) + idlen2; 4174 } 4175 eui = ctl_get_opt(&be_lun->options, "eui"); 4176 if (eui != NULL) { 4177 len += sizeof(struct scsi_vpd_id_descriptor) + 16; 4178 } 4179 naa = ctl_get_opt(&be_lun->options, "naa"); 4180 if (naa != NULL) { 4181 len += sizeof(struct scsi_vpd_id_descriptor) + 16; 4182 } 4183 lun->lun_devid = malloc(sizeof(struct ctl_devid) + len, 4184 M_CTL, M_WAITOK | M_ZERO); 4185 desc = (struct scsi_vpd_id_descriptor *)lun->lun_devid->data; 4186 desc->proto_codeset = SVPD_ID_CODESET_ASCII; 4187 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | SVPD_ID_TYPE_T10; 4188 desc->length = idlen1; 4189 t10id = (struct scsi_vpd_id_t10 *)&desc->identifier[0]; 4190 memset(t10id->vendor, ' ', sizeof(t10id->vendor)); 4191 if ((vendor = ctl_get_opt(&be_lun->options, "vendor")) == NULL) { 4192 strncpy((char *)t10id->vendor, CTL_VENDOR, sizeof(t10id->vendor)); 4193 } else { 4194 strncpy(t10id->vendor, vendor, 4195 min(sizeof(t10id->vendor), strlen(vendor))); 4196 } 4197 strncpy((char *)t10id->vendor_spec_id, 4198 (char *)be_lun->device_id, devidlen); 4199 if (scsiname != NULL) { 4200 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 4201 desc->length); 4202 desc->proto_codeset = SVPD_ID_CODESET_UTF8; 4203 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | 4204 SVPD_ID_TYPE_SCSI_NAME; 4205 desc->length = idlen2; 4206 strlcpy(desc->identifier, scsiname, idlen2); 4207 } 4208 if (eui != NULL) { 4209 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 4210 desc->length); 4211 desc->proto_codeset = SVPD_ID_CODESET_BINARY; 4212 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | 4213 SVPD_ID_TYPE_EUI64; 4214 desc->length = hex2bin(eui, desc->identifier, 16); 4215 desc->length = desc->length > 12 ? 16 : 4216 (desc->length > 8 ? 12 : 8); 4217 len -= 16 - desc->length; 4218 } 4219 if (naa != NULL) { 4220 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 4221 desc->length); 4222 desc->proto_codeset = SVPD_ID_CODESET_BINARY; 4223 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | 4224 SVPD_ID_TYPE_NAA; 4225 desc->length = hex2bin(naa, desc->identifier, 16); 4226 desc->length = desc->length > 8 ? 16 : 8; 4227 len -= 16 - desc->length; 4228 } 4229 lun->lun_devid->len = len; 4230 4231 mtx_lock(&ctl_softc->ctl_lock); 4232 /* 4233 * See if the caller requested a particular LUN number. If so, see 4234 * if it is available. Otherwise, allocate the first available LUN. 4235 */ 4236 if (be_lun->flags & CTL_LUN_FLAG_ID_REQ) { 4237 if ((be_lun->req_lun_id > (CTL_MAX_LUNS - 1)) 4238 || (ctl_is_set(ctl_softc->ctl_lun_mask, be_lun->req_lun_id))) { 4239 mtx_unlock(&ctl_softc->ctl_lock); 4240 if (be_lun->req_lun_id > (CTL_MAX_LUNS - 1)) { 4241 printf("ctl: requested LUN ID %d is higher " 4242 "than CTL_MAX_LUNS - 1 (%d)\n", 4243 be_lun->req_lun_id, CTL_MAX_LUNS - 1); 4244 } else { 4245 /* 4246 * XXX KDM return an error, or just assign 4247 * another LUN ID in this case?? 4248 */ 4249 printf("ctl: requested LUN ID %d is already " 4250 "in use\n", be_lun->req_lun_id); 4251 } 4252 if (lun->flags & CTL_LUN_MALLOCED) 4253 free(lun, M_CTL); 4254 be_lun->lun_config_status(be_lun->be_lun, 4255 CTL_LUN_CONFIG_FAILURE); 4256 return (ENOSPC); 4257 } 4258 lun_number = be_lun->req_lun_id; 4259 } else { 4260 lun_number = ctl_ffz(ctl_softc->ctl_lun_mask, 0, CTL_MAX_LUNS); 4261 if (lun_number == -1) { 4262 mtx_unlock(&ctl_softc->ctl_lock); 4263 printf("ctl: can't allocate LUN, out of LUNs\n"); 4264 if (lun->flags & CTL_LUN_MALLOCED) 4265 free(lun, M_CTL); 4266 be_lun->lun_config_status(be_lun->be_lun, 4267 CTL_LUN_CONFIG_FAILURE); 4268 return (ENOSPC); 4269 } 4270 } 4271 ctl_set_mask(ctl_softc->ctl_lun_mask, lun_number); 4272 4273 mtx_init(&lun->lun_lock, "CTL LUN", NULL, MTX_DEF); 4274 lun->lun = lun_number; 4275 lun->be_lun = be_lun; 4276 /* 4277 * The processor LUN is always enabled. Disk LUNs come on line 4278 * disabled, and must be enabled by the backend. 4279 */ 4280 lun->flags |= CTL_LUN_DISABLED; 4281 lun->backend = be_lun->be; 4282 be_lun->ctl_lun = lun; 4283 be_lun->lun_id = lun_number; 4284 atomic_add_int(&be_lun->be->num_luns, 1); 4285 if (be_lun->flags & CTL_LUN_FLAG_OFFLINE) 4286 lun->flags |= CTL_LUN_OFFLINE; 4287 4288 if (be_lun->flags & CTL_LUN_FLAG_POWERED_OFF) 4289 lun->flags |= CTL_LUN_STOPPED; 4290 4291 if (be_lun->flags & CTL_LUN_FLAG_INOPERABLE) 4292 lun->flags |= CTL_LUN_INOPERABLE; 4293 4294 if (be_lun->flags & CTL_LUN_FLAG_PRIMARY) 4295 lun->flags |= CTL_LUN_PRIMARY_SC; 4296 4297 lun->ctl_softc = ctl_softc; 4298#ifdef CTL_TIME_IO 4299 lun->last_busy = getsbinuptime(); 4300#endif 4301 TAILQ_INIT(&lun->ooa_queue); 4302 TAILQ_INIT(&lun->blocked_queue); 4303 STAILQ_INIT(&lun->error_list); 4304 ctl_tpc_lun_init(lun); 4305 4306 /* 4307 * Initialize the mode and log page index. 4308 */ 4309 ctl_init_page_index(lun); 4310 ctl_init_log_page_index(lun); 4311 4312 /* 4313 * Now, before we insert this lun on the lun list, set the lun 4314 * inventory changed UA for all other luns. 4315 */ 4316 STAILQ_FOREACH(nlun, &ctl_softc->lun_list, links) { 4317 mtx_lock(&nlun->lun_lock); 4318 ctl_est_ua_all(nlun, -1, CTL_UA_LUN_CHANGE); 4319 mtx_unlock(&nlun->lun_lock); 4320 } 4321 4322 STAILQ_INSERT_TAIL(&ctl_softc->lun_list, lun, links); 4323 4324 ctl_softc->ctl_luns[lun_number] = lun; 4325 4326 ctl_softc->num_luns++; 4327 4328 /* Setup statistics gathering */ 4329 lun->stats.device_type = be_lun->lun_type; 4330 lun->stats.lun_number = lun_number; 4331 if (lun->stats.device_type == T_DIRECT) 4332 lun->stats.blocksize = be_lun->blocksize; 4333 else 4334 lun->stats.flags = CTL_LUN_STATS_NO_BLOCKSIZE; 4335 for (i = 0;i < CTL_MAX_PORTS;i++) 4336 lun->stats.ports[i].targ_port = i; 4337 4338 mtx_unlock(&ctl_softc->ctl_lock); 4339 4340 lun->be_lun->lun_config_status(lun->be_lun->be_lun, CTL_LUN_CONFIG_OK); 4341 return (0); 4342} 4343 4344/* 4345 * Delete a LUN. 4346 * Assumptions: 4347 * - LUN has already been marked invalid and any pending I/O has been taken 4348 * care of. 4349 */ 4350static int 4351ctl_free_lun(struct ctl_lun *lun) 4352{ 4353 struct ctl_softc *softc; 4354 struct ctl_lun *nlun; 4355 int i; 4356 4357 softc = lun->ctl_softc; 4358 4359 mtx_assert(&softc->ctl_lock, MA_OWNED); 4360 4361 STAILQ_REMOVE(&softc->lun_list, lun, ctl_lun, links); 4362 4363 ctl_clear_mask(softc->ctl_lun_mask, lun->lun); 4364 4365 softc->ctl_luns[lun->lun] = NULL; 4366 4367 if (!TAILQ_EMPTY(&lun->ooa_queue)) 4368 panic("Freeing a LUN %p with outstanding I/O!!\n", lun); 4369 4370 softc->num_luns--; 4371 4372 /* 4373 * Tell the backend to free resources, if this LUN has a backend. 4374 */ 4375 atomic_subtract_int(&lun->be_lun->be->num_luns, 1); 4376 lun->be_lun->lun_shutdown(lun->be_lun->be_lun); 4377 4378 ctl_tpc_lun_shutdown(lun); 4379 mtx_destroy(&lun->lun_lock); 4380 free(lun->lun_devid, M_CTL); 4381 for (i = 0; i < CTL_MAX_PORTS; i++) 4382 free(lun->pending_ua[i], M_CTL); 4383 for (i = 0; i < CTL_MAX_PORTS; i++) 4384 free(lun->pr_keys[i], M_CTL); 4385 free(lun->write_buffer, M_CTL); 4386 if (lun->flags & CTL_LUN_MALLOCED) 4387 free(lun, M_CTL); 4388 4389 STAILQ_FOREACH(nlun, &softc->lun_list, links) { 4390 mtx_lock(&nlun->lun_lock); 4391 ctl_est_ua_all(nlun, -1, CTL_UA_LUN_CHANGE); 4392 mtx_unlock(&nlun->lun_lock); 4393 } 4394 4395 return (0); 4396} 4397 4398static void 4399ctl_create_lun(struct ctl_be_lun *be_lun) 4400{ 4401 struct ctl_softc *softc; 4402 4403 softc = control_softc; 4404 4405 /* 4406 * ctl_alloc_lun() should handle all potential failure cases. 4407 */ 4408 ctl_alloc_lun(softc, NULL, be_lun); 4409} 4410 4411int 4412ctl_add_lun(struct ctl_be_lun *be_lun) 4413{ 4414 struct ctl_softc *softc = control_softc; 4415 4416 mtx_lock(&softc->ctl_lock); 4417 STAILQ_INSERT_TAIL(&softc->pending_lun_queue, be_lun, links); 4418 mtx_unlock(&softc->ctl_lock); 4419 wakeup(&softc->pending_lun_queue); 4420 4421 return (0); 4422} 4423 4424int 4425ctl_enable_lun(struct ctl_be_lun *be_lun) 4426{ 4427 struct ctl_softc *softc; 4428 struct ctl_port *port, *nport; 4429 struct ctl_lun *lun; 4430 int retval; 4431 4432 lun = (struct ctl_lun *)be_lun->ctl_lun; 4433 softc = lun->ctl_softc; 4434 4435 mtx_lock(&softc->ctl_lock); 4436 mtx_lock(&lun->lun_lock); 4437 if ((lun->flags & CTL_LUN_DISABLED) == 0) { 4438 /* 4439 * eh? Why did we get called if the LUN is already 4440 * enabled? 4441 */ 4442 mtx_unlock(&lun->lun_lock); 4443 mtx_unlock(&softc->ctl_lock); 4444 return (0); 4445 } 4446 lun->flags &= ~CTL_LUN_DISABLED; 4447 mtx_unlock(&lun->lun_lock); 4448 4449 for (port = STAILQ_FIRST(&softc->port_list); port != NULL; port = nport) { 4450 nport = STAILQ_NEXT(port, links); 4451 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0 || 4452 port->lun_map != NULL || port->lun_enable == NULL) 4453 continue; 4454 4455 /* 4456 * Drop the lock while we call the FETD's enable routine. 4457 * This can lead to a callback into CTL (at least in the 4458 * case of the internal initiator frontend. 4459 */ 4460 mtx_unlock(&softc->ctl_lock); 4461 retval = port->lun_enable(port->targ_lun_arg, lun->lun); 4462 mtx_lock(&softc->ctl_lock); 4463 if (retval != 0) { 4464 printf("%s: FETD %s port %d returned error " 4465 "%d for lun_enable on lun %jd\n", 4466 __func__, port->port_name, port->targ_port, 4467 retval, (intmax_t)lun->lun); 4468 } 4469 } 4470 4471 mtx_unlock(&softc->ctl_lock); 4472 ctl_isc_announce_lun(lun); 4473 4474 return (0); 4475} 4476 4477int 4478ctl_disable_lun(struct ctl_be_lun *be_lun) 4479{ 4480 struct ctl_softc *softc; 4481 struct ctl_port *port; 4482 struct ctl_lun *lun; 4483 int retval; 4484 4485 lun = (struct ctl_lun *)be_lun->ctl_lun; 4486 softc = lun->ctl_softc; 4487 4488 mtx_lock(&softc->ctl_lock); 4489 mtx_lock(&lun->lun_lock); 4490 if (lun->flags & CTL_LUN_DISABLED) { 4491 mtx_unlock(&lun->lun_lock); 4492 mtx_unlock(&softc->ctl_lock); 4493 return (0); 4494 } 4495 lun->flags |= CTL_LUN_DISABLED; 4496 mtx_unlock(&lun->lun_lock); 4497 4498 STAILQ_FOREACH(port, &softc->port_list, links) { 4499 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0 || 4500 port->lun_map != NULL || port->lun_disable == NULL) 4501 continue; 4502 4503 /* 4504 * Drop the lock before we call the frontend's disable 4505 * routine, to avoid lock order reversals. 4506 * 4507 * XXX KDM what happens if the frontend list changes while 4508 * we're traversing it? It's unlikely, but should be handled. 4509 */ 4510 mtx_unlock(&softc->ctl_lock); 4511 retval = port->lun_disable(port->targ_lun_arg, lun->lun); 4512 mtx_lock(&softc->ctl_lock); 4513 if (retval != 0) { 4514 printf("%s: FETD %s port %d returned error " 4515 "%d for lun_disable on lun %jd\n", 4516 __func__, port->port_name, port->targ_port, 4517 retval, (intmax_t)lun->lun); 4518 } 4519 } 4520 4521 mtx_unlock(&softc->ctl_lock); 4522 ctl_isc_announce_lun(lun); 4523 4524 return (0); 4525} 4526 4527int 4528ctl_start_lun(struct ctl_be_lun *be_lun) 4529{ 4530 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 4531 4532 mtx_lock(&lun->lun_lock); 4533 lun->flags &= ~CTL_LUN_STOPPED; 4534 mtx_unlock(&lun->lun_lock); 4535 return (0); 4536} 4537 4538int 4539ctl_stop_lun(struct ctl_be_lun *be_lun) 4540{ 4541 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 4542 4543 mtx_lock(&lun->lun_lock); 4544 lun->flags |= CTL_LUN_STOPPED; 4545 mtx_unlock(&lun->lun_lock); 4546 return (0); 4547} 4548 4549int 4550ctl_lun_offline(struct ctl_be_lun *be_lun) 4551{ 4552 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 4553 4554 mtx_lock(&lun->lun_lock); 4555 lun->flags |= CTL_LUN_OFFLINE; 4556 mtx_unlock(&lun->lun_lock); 4557 return (0); 4558} 4559 4560int 4561ctl_lun_online(struct ctl_be_lun *be_lun) 4562{ 4563 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 4564 4565 mtx_lock(&lun->lun_lock); 4566 lun->flags &= ~CTL_LUN_OFFLINE; 4567 mtx_unlock(&lun->lun_lock); 4568 return (0); 4569} 4570 4571int 4572ctl_lun_primary(struct ctl_be_lun *be_lun) 4573{ 4574 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 4575 4576 mtx_lock(&lun->lun_lock); 4577 lun->flags |= CTL_LUN_PRIMARY_SC; 4578 ctl_est_ua_all(lun, -1, CTL_UA_ASYM_ACC_CHANGE); 4579 mtx_unlock(&lun->lun_lock); 4580 ctl_isc_announce_lun(lun); 4581 return (0); 4582} 4583 4584int 4585ctl_lun_secondary(struct ctl_be_lun *be_lun) 4586{ 4587 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 4588 4589 mtx_lock(&lun->lun_lock); 4590 lun->flags &= ~CTL_LUN_PRIMARY_SC; 4591 ctl_est_ua_all(lun, -1, CTL_UA_ASYM_ACC_CHANGE); 4592 mtx_unlock(&lun->lun_lock); 4593 ctl_isc_announce_lun(lun); 4594 return (0); 4595} 4596 4597int 4598ctl_invalidate_lun(struct ctl_be_lun *be_lun) 4599{ 4600 struct ctl_softc *softc; 4601 struct ctl_lun *lun; 4602 4603 lun = (struct ctl_lun *)be_lun->ctl_lun; 4604 softc = lun->ctl_softc; 4605 4606 mtx_lock(&lun->lun_lock); 4607 4608 /* 4609 * The LUN needs to be disabled before it can be marked invalid. 4610 */ 4611 if ((lun->flags & CTL_LUN_DISABLED) == 0) { 4612 mtx_unlock(&lun->lun_lock); 4613 return (-1); 4614 } 4615 /* 4616 * Mark the LUN invalid. 4617 */ 4618 lun->flags |= CTL_LUN_INVALID; 4619 4620 /* 4621 * If there is nothing in the OOA queue, go ahead and free the LUN. 4622 * If we have something in the OOA queue, we'll free it when the 4623 * last I/O completes. 4624 */ 4625 if (TAILQ_EMPTY(&lun->ooa_queue)) { 4626 mtx_unlock(&lun->lun_lock); 4627 mtx_lock(&softc->ctl_lock); 4628 ctl_free_lun(lun); 4629 mtx_unlock(&softc->ctl_lock); 4630 } else 4631 mtx_unlock(&lun->lun_lock); 4632 4633 return (0); 4634} 4635 4636int 4637ctl_lun_inoperable(struct ctl_be_lun *be_lun) 4638{ 4639 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 4640 4641 mtx_lock(&lun->lun_lock); 4642 lun->flags |= CTL_LUN_INOPERABLE; 4643 mtx_unlock(&lun->lun_lock); 4644 return (0); 4645} 4646 4647int 4648ctl_lun_operable(struct ctl_be_lun *be_lun) 4649{ 4650 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 4651 4652 mtx_lock(&lun->lun_lock); 4653 lun->flags &= ~CTL_LUN_INOPERABLE; 4654 mtx_unlock(&lun->lun_lock); 4655 return (0); 4656} 4657 4658void 4659ctl_lun_capacity_changed(struct ctl_be_lun *be_lun) 4660{ 4661 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 4662 union ctl_ha_msg msg; 4663 4664 mtx_lock(&lun->lun_lock); 4665 ctl_est_ua_all(lun, -1, CTL_UA_CAPACITY_CHANGED); 4666 mtx_unlock(&lun->lun_lock); 4667 if (lun->ctl_softc->ha_mode == CTL_HA_MODE_XFER) { 4668 /* Send msg to other side. */ 4669 bzero(&msg.ua, sizeof(msg.ua)); 4670 msg.hdr.msg_type = CTL_MSG_UA; 4671 msg.hdr.nexus.initid = -1; 4672 msg.hdr.nexus.targ_port = -1; 4673 msg.hdr.nexus.targ_lun = lun->lun; 4674 msg.hdr.nexus.targ_mapped_lun = lun->lun; 4675 msg.ua.ua_all = 1; 4676 msg.ua.ua_set = 1; 4677 msg.ua.ua_type = CTL_UA_CAPACITY_CHANGED; 4678 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, sizeof(msg.ua), 4679 M_WAITOK); 4680 } 4681} 4682 4683/* 4684 * Backend "memory move is complete" callback for requests that never 4685 * make it down to say RAIDCore's configuration code. 4686 */ 4687int 4688ctl_config_move_done(union ctl_io *io) 4689{ 4690 int retval; 4691 4692 CTL_DEBUG_PRINT(("ctl_config_move_done\n")); 4693 KASSERT(io->io_hdr.io_type == CTL_IO_SCSI, 4694 ("Config I/O type isn't CTL_IO_SCSI (%d)!", io->io_hdr.io_type)); 4695 4696 if ((io->io_hdr.port_status != 0) && 4697 ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE || 4698 (io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS)) { 4699 /* 4700 * For hardware error sense keys, the sense key 4701 * specific value is defined to be a retry count, 4702 * but we use it to pass back an internal FETD 4703 * error code. XXX KDM Hopefully the FETD is only 4704 * using 16 bits for an error code, since that's 4705 * all the space we have in the sks field. 4706 */ 4707 ctl_set_internal_failure(&io->scsiio, 4708 /*sks_valid*/ 1, 4709 /*retry_count*/ 4710 io->io_hdr.port_status); 4711 } 4712 4713 if (ctl_debug & CTL_DEBUG_CDB_DATA) 4714 ctl_data_print(io); 4715 if (((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_IN) || 4716 ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE && 4717 (io->io_hdr.status & CTL_STATUS_MASK) != CTL_SUCCESS) || 4718 ((io->io_hdr.flags & CTL_FLAG_ABORT) != 0)) { 4719 /* 4720 * XXX KDM just assuming a single pointer here, and not a 4721 * S/G list. If we start using S/G lists for config data, 4722 * we'll need to know how to clean them up here as well. 4723 */ 4724 if (io->io_hdr.flags & CTL_FLAG_ALLOCATED) 4725 free(io->scsiio.kern_data_ptr, M_CTL); 4726 ctl_done(io); 4727 retval = CTL_RETVAL_COMPLETE; 4728 } else { 4729 /* 4730 * XXX KDM now we need to continue data movement. Some 4731 * options: 4732 * - call ctl_scsiio() again? We don't do this for data 4733 * writes, because for those at least we know ahead of 4734 * time where the write will go and how long it is. For 4735 * config writes, though, that information is largely 4736 * contained within the write itself, thus we need to 4737 * parse out the data again. 4738 * 4739 * - Call some other function once the data is in? 4740 */ 4741 4742 /* 4743 * XXX KDM call ctl_scsiio() again for now, and check flag 4744 * bits to see whether we're allocated or not. 4745 */ 4746 retval = ctl_scsiio(&io->scsiio); 4747 } 4748 return (retval); 4749} 4750 4751/* 4752 * This gets called by a backend driver when it is done with a 4753 * data_submit method. 4754 */ 4755void 4756ctl_data_submit_done(union ctl_io *io) 4757{ 4758 /* 4759 * If the IO_CONT flag is set, we need to call the supplied 4760 * function to continue processing the I/O, instead of completing 4761 * the I/O just yet. 4762 * 4763 * If there is an error, though, we don't want to keep processing. 4764 * Instead, just send status back to the initiator. 4765 */ 4766 if ((io->io_hdr.flags & CTL_FLAG_IO_CONT) && 4767 (io->io_hdr.flags & CTL_FLAG_ABORT) == 0 && 4768 ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE || 4769 (io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS)) { 4770 io->scsiio.io_cont(io); 4771 return; 4772 } 4773 ctl_done(io); 4774} 4775 4776/* 4777 * This gets called by a backend driver when it is done with a 4778 * configuration write. 4779 */ 4780void 4781ctl_config_write_done(union ctl_io *io) 4782{ 4783 uint8_t *buf; 4784 4785 /* 4786 * If the IO_CONT flag is set, we need to call the supplied 4787 * function to continue processing the I/O, instead of completing 4788 * the I/O just yet. 4789 * 4790 * If there is an error, though, we don't want to keep processing. 4791 * Instead, just send status back to the initiator. 4792 */ 4793 if ((io->io_hdr.flags & CTL_FLAG_IO_CONT) && 4794 (io->io_hdr.flags & CTL_FLAG_ABORT) == 0 && 4795 ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE || 4796 (io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS)) { 4797 io->scsiio.io_cont(io); 4798 return; 4799 } 4800 /* 4801 * Since a configuration write can be done for commands that actually 4802 * have data allocated, like write buffer, and commands that have 4803 * no data, like start/stop unit, we need to check here. 4804 */ 4805 if (io->io_hdr.flags & CTL_FLAG_ALLOCATED) 4806 buf = io->scsiio.kern_data_ptr; 4807 else 4808 buf = NULL; 4809 ctl_done(io); 4810 if (buf) 4811 free(buf, M_CTL); 4812} 4813 4814void 4815ctl_config_read_done(union ctl_io *io) 4816{ 4817 uint8_t *buf; 4818 4819 /* 4820 * If there is some error -- we are done, skip data transfer. 4821 */ 4822 if ((io->io_hdr.flags & CTL_FLAG_ABORT) != 0 || 4823 ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE && 4824 (io->io_hdr.status & CTL_STATUS_MASK) != CTL_SUCCESS)) { 4825 if (io->io_hdr.flags & CTL_FLAG_ALLOCATED) 4826 buf = io->scsiio.kern_data_ptr; 4827 else 4828 buf = NULL; 4829 ctl_done(io); 4830 if (buf) 4831 free(buf, M_CTL); 4832 return; 4833 } 4834 4835 /* 4836 * If the IO_CONT flag is set, we need to call the supplied 4837 * function to continue processing the I/O, instead of completing 4838 * the I/O just yet. 4839 */ 4840 if (io->io_hdr.flags & CTL_FLAG_IO_CONT) { 4841 io->scsiio.io_cont(io); 4842 return; 4843 } 4844 4845 ctl_datamove(io); 4846} 4847 4848/* 4849 * SCSI release command. 4850 */ 4851int 4852ctl_scsi_release(struct ctl_scsiio *ctsio) 4853{ 4854 int length, longid, thirdparty_id, resv_id; 4855 struct ctl_lun *lun; 4856 uint32_t residx; 4857 4858 length = 0; 4859 resv_id = 0; 4860 4861 CTL_DEBUG_PRINT(("ctl_scsi_release\n")); 4862 4863 residx = ctl_get_initindex(&ctsio->io_hdr.nexus); 4864 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 4865 4866 switch (ctsio->cdb[0]) { 4867 case RELEASE_10: { 4868 struct scsi_release_10 *cdb; 4869 4870 cdb = (struct scsi_release_10 *)ctsio->cdb; 4871 4872 if (cdb->byte2 & SR10_LONGID) 4873 longid = 1; 4874 else 4875 thirdparty_id = cdb->thirdparty_id; 4876 4877 resv_id = cdb->resv_id; 4878 length = scsi_2btoul(cdb->length); 4879 break; 4880 } 4881 } 4882 4883 4884 /* 4885 * XXX KDM right now, we only support LUN reservation. We don't 4886 * support 3rd party reservations, or extent reservations, which 4887 * might actually need the parameter list. If we've gotten this 4888 * far, we've got a LUN reservation. Anything else got kicked out 4889 * above. So, according to SPC, ignore the length. 4890 */ 4891 length = 0; 4892 4893 if (((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) 4894 && (length > 0)) { 4895 ctsio->kern_data_ptr = malloc(length, M_CTL, M_WAITOK); 4896 ctsio->kern_data_len = length; 4897 ctsio->kern_total_len = length; 4898 ctsio->kern_data_resid = 0; 4899 ctsio->kern_rel_offset = 0; 4900 ctsio->kern_sg_entries = 0; 4901 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 4902 ctsio->be_move_done = ctl_config_move_done; 4903 ctl_datamove((union ctl_io *)ctsio); 4904 4905 return (CTL_RETVAL_COMPLETE); 4906 } 4907 4908 if (length > 0) 4909 thirdparty_id = scsi_8btou64(ctsio->kern_data_ptr); 4910 4911 mtx_lock(&lun->lun_lock); 4912 4913 /* 4914 * According to SPC, it is not an error for an intiator to attempt 4915 * to release a reservation on a LUN that isn't reserved, or that 4916 * is reserved by another initiator. The reservation can only be 4917 * released, though, by the initiator who made it or by one of 4918 * several reset type events. 4919 */ 4920 if ((lun->flags & CTL_LUN_RESERVED) && (lun->res_idx == residx)) 4921 lun->flags &= ~CTL_LUN_RESERVED; 4922 4923 mtx_unlock(&lun->lun_lock); 4924 4925 if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) { 4926 free(ctsio->kern_data_ptr, M_CTL); 4927 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED; 4928 } 4929 4930 ctl_set_success(ctsio); 4931 ctl_done((union ctl_io *)ctsio); 4932 return (CTL_RETVAL_COMPLETE); 4933} 4934 4935int 4936ctl_scsi_reserve(struct ctl_scsiio *ctsio) 4937{ 4938 int extent, thirdparty, longid; 4939 int resv_id, length; 4940 uint64_t thirdparty_id; 4941 struct ctl_lun *lun; 4942 uint32_t residx; 4943 4944 extent = 0; 4945 thirdparty = 0; 4946 longid = 0; 4947 resv_id = 0; 4948 length = 0; 4949 thirdparty_id = 0; 4950 4951 CTL_DEBUG_PRINT(("ctl_reserve\n")); 4952 4953 residx = ctl_get_initindex(&ctsio->io_hdr.nexus); 4954 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 4955 4956 switch (ctsio->cdb[0]) { 4957 case RESERVE_10: { 4958 struct scsi_reserve_10 *cdb; 4959 4960 cdb = (struct scsi_reserve_10 *)ctsio->cdb; 4961 4962 if (cdb->byte2 & SR10_LONGID) 4963 longid = 1; 4964 else 4965 thirdparty_id = cdb->thirdparty_id; 4966 4967 resv_id = cdb->resv_id; 4968 length = scsi_2btoul(cdb->length); 4969 break; 4970 } 4971 } 4972 4973 /* 4974 * XXX KDM right now, we only support LUN reservation. We don't 4975 * support 3rd party reservations, or extent reservations, which 4976 * might actually need the parameter list. If we've gotten this 4977 * far, we've got a LUN reservation. Anything else got kicked out 4978 * above. So, according to SPC, ignore the length. 4979 */ 4980 length = 0; 4981 4982 if (((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) 4983 && (length > 0)) { 4984 ctsio->kern_data_ptr = malloc(length, M_CTL, M_WAITOK); 4985 ctsio->kern_data_len = length; 4986 ctsio->kern_total_len = length; 4987 ctsio->kern_data_resid = 0; 4988 ctsio->kern_rel_offset = 0; 4989 ctsio->kern_sg_entries = 0; 4990 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 4991 ctsio->be_move_done = ctl_config_move_done; 4992 ctl_datamove((union ctl_io *)ctsio); 4993 4994 return (CTL_RETVAL_COMPLETE); 4995 } 4996 4997 if (length > 0) 4998 thirdparty_id = scsi_8btou64(ctsio->kern_data_ptr); 4999 5000 mtx_lock(&lun->lun_lock); 5001 if ((lun->flags & CTL_LUN_RESERVED) && (lun->res_idx != residx)) { 5002 ctl_set_reservation_conflict(ctsio); 5003 goto bailout; 5004 } 5005 5006 lun->flags |= CTL_LUN_RESERVED; 5007 lun->res_idx = residx; 5008 5009 ctl_set_success(ctsio); 5010 5011bailout: 5012 mtx_unlock(&lun->lun_lock); 5013 5014 if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) { 5015 free(ctsio->kern_data_ptr, M_CTL); 5016 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED; 5017 } 5018 5019 ctl_done((union ctl_io *)ctsio); 5020 return (CTL_RETVAL_COMPLETE); 5021} 5022 5023int 5024ctl_start_stop(struct ctl_scsiio *ctsio) 5025{ 5026 struct scsi_start_stop_unit *cdb; 5027 struct ctl_lun *lun; 5028 int retval; 5029 5030 CTL_DEBUG_PRINT(("ctl_start_stop\n")); 5031 5032 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5033 retval = 0; 5034 5035 cdb = (struct scsi_start_stop_unit *)ctsio->cdb; 5036 5037 /* 5038 * XXX KDM 5039 * We don't support the immediate bit on a stop unit. In order to 5040 * do that, we would need to code up a way to know that a stop is 5041 * pending, and hold off any new commands until it completes, one 5042 * way or another. Then we could accept or reject those commands 5043 * depending on its status. We would almost need to do the reverse 5044 * of what we do below for an immediate start -- return the copy of 5045 * the ctl_io to the FETD with status to send to the host (and to 5046 * free the copy!) and then free the original I/O once the stop 5047 * actually completes. That way, the OOA queue mechanism can work 5048 * to block commands that shouldn't proceed. Another alternative 5049 * would be to put the copy in the queue in place of the original, 5050 * and return the original back to the caller. That could be 5051 * slightly safer.. 5052 */ 5053 if ((cdb->byte2 & SSS_IMMED) 5054 && ((cdb->how & SSS_START) == 0)) { 5055 ctl_set_invalid_field(ctsio, 5056 /*sks_valid*/ 1, 5057 /*command*/ 1, 5058 /*field*/ 1, 5059 /*bit_valid*/ 1, 5060 /*bit*/ 0); 5061 ctl_done((union ctl_io *)ctsio); 5062 return (CTL_RETVAL_COMPLETE); 5063 } 5064 5065 if ((lun->flags & CTL_LUN_PR_RESERVED) 5066 && ((cdb->how & SSS_START)==0)) { 5067 uint32_t residx; 5068 5069 residx = ctl_get_initindex(&ctsio->io_hdr.nexus); 5070 if (ctl_get_prkey(lun, residx) == 0 5071 || (lun->pr_res_idx!=residx && lun->res_type < 4)) { 5072 5073 ctl_set_reservation_conflict(ctsio); 5074 ctl_done((union ctl_io *)ctsio); 5075 return (CTL_RETVAL_COMPLETE); 5076 } 5077 } 5078 5079 /* 5080 * If there is no backend on this device, we can't start or stop 5081 * it. In theory we shouldn't get any start/stop commands in the 5082 * first place at this level if the LUN doesn't have a backend. 5083 * That should get stopped by the command decode code. 5084 */ 5085 if (lun->backend == NULL) { 5086 ctl_set_invalid_opcode(ctsio); 5087 ctl_done((union ctl_io *)ctsio); 5088 return (CTL_RETVAL_COMPLETE); 5089 } 5090 5091 /* 5092 * XXX KDM Copan-specific offline behavior. 5093 * Figure out a reasonable way to port this? 5094 */ 5095#ifdef NEEDTOPORT 5096 mtx_lock(&lun->lun_lock); 5097 5098 if (((cdb->byte2 & SSS_ONOFFLINE) == 0) 5099 && (lun->flags & CTL_LUN_OFFLINE)) { 5100 /* 5101 * If the LUN is offline, and the on/offline bit isn't set, 5102 * reject the start or stop. Otherwise, let it through. 5103 */ 5104 mtx_unlock(&lun->lun_lock); 5105 ctl_set_lun_not_ready(ctsio); 5106 ctl_done((union ctl_io *)ctsio); 5107 } else { 5108 mtx_unlock(&lun->lun_lock); 5109#endif /* NEEDTOPORT */ 5110 /* 5111 * This could be a start or a stop when we're online, 5112 * or a stop/offline or start/online. A start or stop when 5113 * we're offline is covered in the case above. 5114 */ 5115 /* 5116 * In the non-immediate case, we send the request to 5117 * the backend and return status to the user when 5118 * it is done. 5119 * 5120 * In the immediate case, we allocate a new ctl_io 5121 * to hold a copy of the request, and send that to 5122 * the backend. We then set good status on the 5123 * user's request and return it immediately. 5124 */ 5125 if (cdb->byte2 & SSS_IMMED) { 5126 union ctl_io *new_io; 5127 5128 new_io = ctl_alloc_io(ctsio->io_hdr.pool); 5129 ctl_copy_io((union ctl_io *)ctsio, new_io); 5130 retval = lun->backend->config_write(new_io); 5131 ctl_set_success(ctsio); 5132 ctl_done((union ctl_io *)ctsio); 5133 } else { 5134 retval = lun->backend->config_write( 5135 (union ctl_io *)ctsio); 5136 } 5137#ifdef NEEDTOPORT 5138 } 5139#endif 5140 return (retval); 5141} 5142 5143/* 5144 * We support the SYNCHRONIZE CACHE command (10 and 16 byte versions), but 5145 * we don't really do anything with the LBA and length fields if the user 5146 * passes them in. Instead we'll just flush out the cache for the entire 5147 * LUN. 5148 */ 5149int 5150ctl_sync_cache(struct ctl_scsiio *ctsio) 5151{ 5152 struct ctl_lun *lun; 5153 struct ctl_softc *softc; 5154 struct ctl_lba_len_flags *lbalen; 5155 uint64_t starting_lba; 5156 uint32_t block_count; 5157 int retval; 5158 uint8_t byte2; 5159 5160 CTL_DEBUG_PRINT(("ctl_sync_cache\n")); 5161 5162 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5163 softc = lun->ctl_softc; 5164 retval = 0; 5165 5166 switch (ctsio->cdb[0]) { 5167 case SYNCHRONIZE_CACHE: { 5168 struct scsi_sync_cache *cdb; 5169 cdb = (struct scsi_sync_cache *)ctsio->cdb; 5170 5171 starting_lba = scsi_4btoul(cdb->begin_lba); 5172 block_count = scsi_2btoul(cdb->lb_count); 5173 byte2 = cdb->byte2; 5174 break; 5175 } 5176 case SYNCHRONIZE_CACHE_16: { 5177 struct scsi_sync_cache_16 *cdb; 5178 cdb = (struct scsi_sync_cache_16 *)ctsio->cdb; 5179 5180 starting_lba = scsi_8btou64(cdb->begin_lba); 5181 block_count = scsi_4btoul(cdb->lb_count); 5182 byte2 = cdb->byte2; 5183 break; 5184 } 5185 default: 5186 ctl_set_invalid_opcode(ctsio); 5187 ctl_done((union ctl_io *)ctsio); 5188 goto bailout; 5189 break; /* NOTREACHED */ 5190 } 5191 5192 /* 5193 * We check the LBA and length, but don't do anything with them. 5194 * A SYNCHRONIZE CACHE will cause the entire cache for this lun to 5195 * get flushed. This check will just help satisfy anyone who wants 5196 * to see an error for an out of range LBA. 5197 */ 5198 if ((starting_lba + block_count) > (lun->be_lun->maxlba + 1)) { 5199 ctl_set_lba_out_of_range(ctsio); 5200 ctl_done((union ctl_io *)ctsio); 5201 goto bailout; 5202 } 5203 5204 /* 5205 * If this LUN has no backend, we can't flush the cache anyway. 5206 */ 5207 if (lun->backend == NULL) { 5208 ctl_set_invalid_opcode(ctsio); 5209 ctl_done((union ctl_io *)ctsio); 5210 goto bailout; 5211 } 5212 5213 lbalen = (struct ctl_lba_len_flags *)&ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 5214 lbalen->lba = starting_lba; 5215 lbalen->len = block_count; 5216 lbalen->flags = byte2; 5217 5218 /* 5219 * Check to see whether we're configured to send the SYNCHRONIZE 5220 * CACHE command directly to the back end. 5221 */ 5222 mtx_lock(&lun->lun_lock); 5223 if ((softc->flags & CTL_FLAG_REAL_SYNC) 5224 && (++(lun->sync_count) >= lun->sync_interval)) { 5225 lun->sync_count = 0; 5226 mtx_unlock(&lun->lun_lock); 5227 retval = lun->backend->config_write((union ctl_io *)ctsio); 5228 } else { 5229 mtx_unlock(&lun->lun_lock); 5230 ctl_set_success(ctsio); 5231 ctl_done((union ctl_io *)ctsio); 5232 } 5233 5234bailout: 5235 5236 return (retval); 5237} 5238 5239int 5240ctl_format(struct ctl_scsiio *ctsio) 5241{ 5242 struct scsi_format *cdb; 5243 struct ctl_lun *lun; 5244 int length, defect_list_len; 5245 5246 CTL_DEBUG_PRINT(("ctl_format\n")); 5247 5248 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5249 5250 cdb = (struct scsi_format *)ctsio->cdb; 5251 5252 length = 0; 5253 if (cdb->byte2 & SF_FMTDATA) { 5254 if (cdb->byte2 & SF_LONGLIST) 5255 length = sizeof(struct scsi_format_header_long); 5256 else 5257 length = sizeof(struct scsi_format_header_short); 5258 } 5259 5260 if (((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) 5261 && (length > 0)) { 5262 ctsio->kern_data_ptr = malloc(length, M_CTL, M_WAITOK); 5263 ctsio->kern_data_len = length; 5264 ctsio->kern_total_len = length; 5265 ctsio->kern_data_resid = 0; 5266 ctsio->kern_rel_offset = 0; 5267 ctsio->kern_sg_entries = 0; 5268 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5269 ctsio->be_move_done = ctl_config_move_done; 5270 ctl_datamove((union ctl_io *)ctsio); 5271 5272 return (CTL_RETVAL_COMPLETE); 5273 } 5274 5275 defect_list_len = 0; 5276 5277 if (cdb->byte2 & SF_FMTDATA) { 5278 if (cdb->byte2 & SF_LONGLIST) { 5279 struct scsi_format_header_long *header; 5280 5281 header = (struct scsi_format_header_long *) 5282 ctsio->kern_data_ptr; 5283 5284 defect_list_len = scsi_4btoul(header->defect_list_len); 5285 if (defect_list_len != 0) { 5286 ctl_set_invalid_field(ctsio, 5287 /*sks_valid*/ 1, 5288 /*command*/ 0, 5289 /*field*/ 2, 5290 /*bit_valid*/ 0, 5291 /*bit*/ 0); 5292 goto bailout; 5293 } 5294 } else { 5295 struct scsi_format_header_short *header; 5296 5297 header = (struct scsi_format_header_short *) 5298 ctsio->kern_data_ptr; 5299 5300 defect_list_len = scsi_2btoul(header->defect_list_len); 5301 if (defect_list_len != 0) { 5302 ctl_set_invalid_field(ctsio, 5303 /*sks_valid*/ 1, 5304 /*command*/ 0, 5305 /*field*/ 2, 5306 /*bit_valid*/ 0, 5307 /*bit*/ 0); 5308 goto bailout; 5309 } 5310 } 5311 } 5312 5313 /* 5314 * The format command will clear out the "Medium format corrupted" 5315 * status if set by the configuration code. That status is really 5316 * just a way to notify the host that we have lost the media, and 5317 * get them to issue a command that will basically make them think 5318 * they're blowing away the media. 5319 */ 5320 mtx_lock(&lun->lun_lock); 5321 lun->flags &= ~CTL_LUN_INOPERABLE; 5322 mtx_unlock(&lun->lun_lock); 5323 5324 ctl_set_success(ctsio); 5325bailout: 5326 5327 if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) { 5328 free(ctsio->kern_data_ptr, M_CTL); 5329 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED; 5330 } 5331 5332 ctl_done((union ctl_io *)ctsio); 5333 return (CTL_RETVAL_COMPLETE); 5334} 5335 5336int 5337ctl_read_buffer(struct ctl_scsiio *ctsio) 5338{ 5339 struct scsi_read_buffer *cdb; 5340 struct ctl_lun *lun; 5341 int buffer_offset, len; 5342 static uint8_t descr[4]; 5343 static uint8_t echo_descr[4] = { 0 }; 5344 5345 CTL_DEBUG_PRINT(("ctl_read_buffer\n")); 5346 5347 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5348 cdb = (struct scsi_read_buffer *)ctsio->cdb; 5349 5350 if ((cdb->byte2 & RWB_MODE) != RWB_MODE_DATA && 5351 (cdb->byte2 & RWB_MODE) != RWB_MODE_ECHO_DESCR && 5352 (cdb->byte2 & RWB_MODE) != RWB_MODE_DESCR) { 5353 ctl_set_invalid_field(ctsio, 5354 /*sks_valid*/ 1, 5355 /*command*/ 1, 5356 /*field*/ 1, 5357 /*bit_valid*/ 1, 5358 /*bit*/ 4); 5359 ctl_done((union ctl_io *)ctsio); 5360 return (CTL_RETVAL_COMPLETE); 5361 } 5362 5363 len = scsi_3btoul(cdb->length); 5364 buffer_offset = scsi_3btoul(cdb->offset); 5365 5366 if (buffer_offset + len > CTL_WRITE_BUFFER_SIZE) { 5367 ctl_set_invalid_field(ctsio, 5368 /*sks_valid*/ 1, 5369 /*command*/ 1, 5370 /*field*/ 6, 5371 /*bit_valid*/ 0, 5372 /*bit*/ 0); 5373 ctl_done((union ctl_io *)ctsio); 5374 return (CTL_RETVAL_COMPLETE); 5375 } 5376 5377 if ((cdb->byte2 & RWB_MODE) == RWB_MODE_DESCR) { 5378 descr[0] = 0; 5379 scsi_ulto3b(CTL_WRITE_BUFFER_SIZE, &descr[1]); 5380 ctsio->kern_data_ptr = descr; 5381 len = min(len, sizeof(descr)); 5382 } else if ((cdb->byte2 & RWB_MODE) == RWB_MODE_ECHO_DESCR) { 5383 ctsio->kern_data_ptr = echo_descr; 5384 len = min(len, sizeof(echo_descr)); 5385 } else { 5386 if (lun->write_buffer == NULL) { 5387 lun->write_buffer = malloc(CTL_WRITE_BUFFER_SIZE, 5388 M_CTL, M_WAITOK); 5389 } 5390 ctsio->kern_data_ptr = lun->write_buffer + buffer_offset; 5391 } 5392 ctsio->kern_data_len = len; 5393 ctsio->kern_total_len = len; 5394 ctsio->kern_data_resid = 0; 5395 ctsio->kern_rel_offset = 0; 5396 ctsio->kern_sg_entries = 0; 5397 ctl_set_success(ctsio); 5398 ctsio->be_move_done = ctl_config_move_done; 5399 ctl_datamove((union ctl_io *)ctsio); 5400 return (CTL_RETVAL_COMPLETE); 5401} 5402 5403int 5404ctl_write_buffer(struct ctl_scsiio *ctsio) 5405{ 5406 struct scsi_write_buffer *cdb; 5407 struct ctl_lun *lun; 5408 int buffer_offset, len; 5409 5410 CTL_DEBUG_PRINT(("ctl_write_buffer\n")); 5411 5412 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5413 cdb = (struct scsi_write_buffer *)ctsio->cdb; 5414 5415 if ((cdb->byte2 & RWB_MODE) != RWB_MODE_DATA) { 5416 ctl_set_invalid_field(ctsio, 5417 /*sks_valid*/ 1, 5418 /*command*/ 1, 5419 /*field*/ 1, 5420 /*bit_valid*/ 1, 5421 /*bit*/ 4); 5422 ctl_done((union ctl_io *)ctsio); 5423 return (CTL_RETVAL_COMPLETE); 5424 } 5425 5426 len = scsi_3btoul(cdb->length); 5427 buffer_offset = scsi_3btoul(cdb->offset); 5428 5429 if (buffer_offset + len > CTL_WRITE_BUFFER_SIZE) { 5430 ctl_set_invalid_field(ctsio, 5431 /*sks_valid*/ 1, 5432 /*command*/ 1, 5433 /*field*/ 6, 5434 /*bit_valid*/ 0, 5435 /*bit*/ 0); 5436 ctl_done((union ctl_io *)ctsio); 5437 return (CTL_RETVAL_COMPLETE); 5438 } 5439 5440 /* 5441 * If we've got a kernel request that hasn't been malloced yet, 5442 * malloc it and tell the caller the data buffer is here. 5443 */ 5444 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 5445 if (lun->write_buffer == NULL) { 5446 lun->write_buffer = malloc(CTL_WRITE_BUFFER_SIZE, 5447 M_CTL, M_WAITOK); 5448 } 5449 ctsio->kern_data_ptr = lun->write_buffer + buffer_offset; 5450 ctsio->kern_data_len = len; 5451 ctsio->kern_total_len = len; 5452 ctsio->kern_data_resid = 0; 5453 ctsio->kern_rel_offset = 0; 5454 ctsio->kern_sg_entries = 0; 5455 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5456 ctsio->be_move_done = ctl_config_move_done; 5457 ctl_datamove((union ctl_io *)ctsio); 5458 5459 return (CTL_RETVAL_COMPLETE); 5460 } 5461 5462 ctl_set_success(ctsio); 5463 ctl_done((union ctl_io *)ctsio); 5464 return (CTL_RETVAL_COMPLETE); 5465} 5466 5467int 5468ctl_write_same(struct ctl_scsiio *ctsio) 5469{ 5470 struct ctl_lun *lun; 5471 struct ctl_lba_len_flags *lbalen; 5472 uint64_t lba; 5473 uint32_t num_blocks; 5474 int len, retval; 5475 uint8_t byte2; 5476 5477 retval = CTL_RETVAL_COMPLETE; 5478 5479 CTL_DEBUG_PRINT(("ctl_write_same\n")); 5480 5481 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5482 5483 switch (ctsio->cdb[0]) { 5484 case WRITE_SAME_10: { 5485 struct scsi_write_same_10 *cdb; 5486 5487 cdb = (struct scsi_write_same_10 *)ctsio->cdb; 5488 5489 lba = scsi_4btoul(cdb->addr); 5490 num_blocks = scsi_2btoul(cdb->length); 5491 byte2 = cdb->byte2; 5492 break; 5493 } 5494 case WRITE_SAME_16: { 5495 struct scsi_write_same_16 *cdb; 5496 5497 cdb = (struct scsi_write_same_16 *)ctsio->cdb; 5498 5499 lba = scsi_8btou64(cdb->addr); 5500 num_blocks = scsi_4btoul(cdb->length); 5501 byte2 = cdb->byte2; 5502 break; 5503 } 5504 default: 5505 /* 5506 * We got a command we don't support. This shouldn't 5507 * happen, commands should be filtered out above us. 5508 */ 5509 ctl_set_invalid_opcode(ctsio); 5510 ctl_done((union ctl_io *)ctsio); 5511 5512 return (CTL_RETVAL_COMPLETE); 5513 break; /* NOTREACHED */ 5514 } 5515 5516 /* NDOB and ANCHOR flags can be used only together with UNMAP */ 5517 if ((byte2 & SWS_UNMAP) == 0 && 5518 (byte2 & (SWS_NDOB | SWS_ANCHOR)) != 0) { 5519 ctl_set_invalid_field(ctsio, /*sks_valid*/ 1, 5520 /*command*/ 1, /*field*/ 1, /*bit_valid*/ 1, /*bit*/ 0); 5521 ctl_done((union ctl_io *)ctsio); 5522 return (CTL_RETVAL_COMPLETE); 5523 } 5524 5525 /* 5526 * The first check is to make sure we're in bounds, the second 5527 * check is to catch wrap-around problems. If the lba + num blocks 5528 * is less than the lba, then we've wrapped around and the block 5529 * range is invalid anyway. 5530 */ 5531 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 5532 || ((lba + num_blocks) < lba)) { 5533 ctl_set_lba_out_of_range(ctsio); 5534 ctl_done((union ctl_io *)ctsio); 5535 return (CTL_RETVAL_COMPLETE); 5536 } 5537 5538 /* Zero number of blocks means "to the last logical block" */ 5539 if (num_blocks == 0) { 5540 if ((lun->be_lun->maxlba + 1) - lba > UINT32_MAX) { 5541 ctl_set_invalid_field(ctsio, 5542 /*sks_valid*/ 0, 5543 /*command*/ 1, 5544 /*field*/ 0, 5545 /*bit_valid*/ 0, 5546 /*bit*/ 0); 5547 ctl_done((union ctl_io *)ctsio); 5548 return (CTL_RETVAL_COMPLETE); 5549 } 5550 num_blocks = (lun->be_lun->maxlba + 1) - lba; 5551 } 5552 5553 len = lun->be_lun->blocksize; 5554 5555 /* 5556 * If we've got a kernel request that hasn't been malloced yet, 5557 * malloc it and tell the caller the data buffer is here. 5558 */ 5559 if ((byte2 & SWS_NDOB) == 0 && 5560 (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 5561 ctsio->kern_data_ptr = malloc(len, M_CTL, M_WAITOK);; 5562 ctsio->kern_data_len = len; 5563 ctsio->kern_total_len = len; 5564 ctsio->kern_data_resid = 0; 5565 ctsio->kern_rel_offset = 0; 5566 ctsio->kern_sg_entries = 0; 5567 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5568 ctsio->be_move_done = ctl_config_move_done; 5569 ctl_datamove((union ctl_io *)ctsio); 5570 5571 return (CTL_RETVAL_COMPLETE); 5572 } 5573 5574 lbalen = (struct ctl_lba_len_flags *)&ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 5575 lbalen->lba = lba; 5576 lbalen->len = num_blocks; 5577 lbalen->flags = byte2; 5578 retval = lun->backend->config_write((union ctl_io *)ctsio); 5579 5580 return (retval); 5581} 5582 5583int 5584ctl_unmap(struct ctl_scsiio *ctsio) 5585{ 5586 struct ctl_lun *lun; 5587 struct scsi_unmap *cdb; 5588 struct ctl_ptr_len_flags *ptrlen; 5589 struct scsi_unmap_header *hdr; 5590 struct scsi_unmap_desc *buf, *end, *endnz, *range; 5591 uint64_t lba; 5592 uint32_t num_blocks; 5593 int len, retval; 5594 uint8_t byte2; 5595 5596 retval = CTL_RETVAL_COMPLETE; 5597 5598 CTL_DEBUG_PRINT(("ctl_unmap\n")); 5599 5600 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5601 cdb = (struct scsi_unmap *)ctsio->cdb; 5602 5603 len = scsi_2btoul(cdb->length); 5604 byte2 = cdb->byte2; 5605 5606 /* 5607 * If we've got a kernel request that hasn't been malloced yet, 5608 * malloc it and tell the caller the data buffer is here. 5609 */ 5610 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 5611 ctsio->kern_data_ptr = malloc(len, M_CTL, M_WAITOK);; 5612 ctsio->kern_data_len = len; 5613 ctsio->kern_total_len = len; 5614 ctsio->kern_data_resid = 0; 5615 ctsio->kern_rel_offset = 0; 5616 ctsio->kern_sg_entries = 0; 5617 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5618 ctsio->be_move_done = ctl_config_move_done; 5619 ctl_datamove((union ctl_io *)ctsio); 5620 5621 return (CTL_RETVAL_COMPLETE); 5622 } 5623 5624 len = ctsio->kern_total_len - ctsio->kern_data_resid; 5625 hdr = (struct scsi_unmap_header *)ctsio->kern_data_ptr; 5626 if (len < sizeof (*hdr) || 5627 len < (scsi_2btoul(hdr->length) + sizeof(hdr->length)) || 5628 len < (scsi_2btoul(hdr->desc_length) + sizeof (*hdr)) || 5629 scsi_2btoul(hdr->desc_length) % sizeof(*buf) != 0) { 5630 ctl_set_invalid_field(ctsio, 5631 /*sks_valid*/ 0, 5632 /*command*/ 0, 5633 /*field*/ 0, 5634 /*bit_valid*/ 0, 5635 /*bit*/ 0); 5636 goto done; 5637 } 5638 len = scsi_2btoul(hdr->desc_length); 5639 buf = (struct scsi_unmap_desc *)(hdr + 1); 5640 end = buf + len / sizeof(*buf); 5641 5642 endnz = buf; 5643 for (range = buf; range < end; range++) { 5644 lba = scsi_8btou64(range->lba); 5645 num_blocks = scsi_4btoul(range->length); 5646 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 5647 || ((lba + num_blocks) < lba)) { 5648 ctl_set_lba_out_of_range(ctsio); 5649 ctl_done((union ctl_io *)ctsio); 5650 return (CTL_RETVAL_COMPLETE); 5651 } 5652 if (num_blocks != 0) 5653 endnz = range + 1; 5654 } 5655 5656 /* 5657 * Block backend can not handle zero last range. 5658 * Filter it out and return if there is nothing left. 5659 */ 5660 len = (uint8_t *)endnz - (uint8_t *)buf; 5661 if (len == 0) { 5662 ctl_set_success(ctsio); 5663 goto done; 5664 } 5665 5666 mtx_lock(&lun->lun_lock); 5667 ptrlen = (struct ctl_ptr_len_flags *) 5668 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 5669 ptrlen->ptr = (void *)buf; 5670 ptrlen->len = len; 5671 ptrlen->flags = byte2; 5672 ctl_check_blocked(lun); 5673 mtx_unlock(&lun->lun_lock); 5674 5675 retval = lun->backend->config_write((union ctl_io *)ctsio); 5676 return (retval); 5677 5678done: 5679 if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) { 5680 free(ctsio->kern_data_ptr, M_CTL); 5681 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED; 5682 } 5683 ctl_done((union ctl_io *)ctsio); 5684 return (CTL_RETVAL_COMPLETE); 5685} 5686 5687/* 5688 * Note that this function currently doesn't actually do anything inside 5689 * CTL to enforce things if the DQue bit is turned on. 5690 * 5691 * Also note that this function can't be used in the default case, because 5692 * the DQue bit isn't set in the changeable mask for the control mode page 5693 * anyway. This is just here as an example for how to implement a page 5694 * handler, and a placeholder in case we want to allow the user to turn 5695 * tagged queueing on and off. 5696 * 5697 * The D_SENSE bit handling is functional, however, and will turn 5698 * descriptor sense on and off for a given LUN. 5699 */ 5700int 5701ctl_control_page_handler(struct ctl_scsiio *ctsio, 5702 struct ctl_page_index *page_index, uint8_t *page_ptr) 5703{ 5704 struct scsi_control_page *current_cp, *saved_cp, *user_cp; 5705 struct ctl_lun *lun; 5706 int set_ua; 5707 uint32_t initidx; 5708 5709 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5710 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 5711 set_ua = 0; 5712 5713 user_cp = (struct scsi_control_page *)page_ptr; 5714 current_cp = (struct scsi_control_page *) 5715 (page_index->page_data + (page_index->page_len * 5716 CTL_PAGE_CURRENT)); 5717 saved_cp = (struct scsi_control_page *) 5718 (page_index->page_data + (page_index->page_len * 5719 CTL_PAGE_SAVED)); 5720 5721 mtx_lock(&lun->lun_lock); 5722 if (((current_cp->rlec & SCP_DSENSE) == 0) 5723 && ((user_cp->rlec & SCP_DSENSE) != 0)) { 5724 /* 5725 * Descriptor sense is currently turned off and the user 5726 * wants to turn it on. 5727 */ 5728 current_cp->rlec |= SCP_DSENSE; 5729 saved_cp->rlec |= SCP_DSENSE; 5730 lun->flags |= CTL_LUN_SENSE_DESC; 5731 set_ua = 1; 5732 } else if (((current_cp->rlec & SCP_DSENSE) != 0) 5733 && ((user_cp->rlec & SCP_DSENSE) == 0)) { 5734 /* 5735 * Descriptor sense is currently turned on, and the user 5736 * wants to turn it off. 5737 */ 5738 current_cp->rlec &= ~SCP_DSENSE; 5739 saved_cp->rlec &= ~SCP_DSENSE; 5740 lun->flags &= ~CTL_LUN_SENSE_DESC; 5741 set_ua = 1; 5742 } 5743 if ((current_cp->queue_flags & SCP_QUEUE_ALG_MASK) != 5744 (user_cp->queue_flags & SCP_QUEUE_ALG_MASK)) { 5745 current_cp->queue_flags &= ~SCP_QUEUE_ALG_MASK; 5746 current_cp->queue_flags |= user_cp->queue_flags & SCP_QUEUE_ALG_MASK; 5747 saved_cp->queue_flags &= ~SCP_QUEUE_ALG_MASK; 5748 saved_cp->queue_flags |= user_cp->queue_flags & SCP_QUEUE_ALG_MASK; 5749 set_ua = 1; 5750 } 5751 if ((current_cp->eca_and_aen & SCP_SWP) != 5752 (user_cp->eca_and_aen & SCP_SWP)) { 5753 current_cp->eca_and_aen &= ~SCP_SWP; 5754 current_cp->eca_and_aen |= user_cp->eca_and_aen & SCP_SWP; 5755 saved_cp->eca_and_aen &= ~SCP_SWP; 5756 saved_cp->eca_and_aen |= user_cp->eca_and_aen & SCP_SWP; 5757 set_ua = 1; 5758 } 5759 if (set_ua != 0) 5760 ctl_est_ua_all(lun, initidx, CTL_UA_MODE_CHANGE); 5761 mtx_unlock(&lun->lun_lock); 5762 5763 return (0); 5764} 5765 5766int 5767ctl_caching_sp_handler(struct ctl_scsiio *ctsio, 5768 struct ctl_page_index *page_index, uint8_t *page_ptr) 5769{ 5770 struct scsi_caching_page *current_cp, *saved_cp, *user_cp; 5771 struct ctl_lun *lun; 5772 int set_ua; 5773 uint32_t initidx; 5774 5775 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5776 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 5777 set_ua = 0; 5778 5779 user_cp = (struct scsi_caching_page *)page_ptr; 5780 current_cp = (struct scsi_caching_page *) 5781 (page_index->page_data + (page_index->page_len * 5782 CTL_PAGE_CURRENT)); 5783 saved_cp = (struct scsi_caching_page *) 5784 (page_index->page_data + (page_index->page_len * 5785 CTL_PAGE_SAVED)); 5786 5787 mtx_lock(&lun->lun_lock); 5788 if ((current_cp->flags1 & (SCP_WCE | SCP_RCD)) != 5789 (user_cp->flags1 & (SCP_WCE | SCP_RCD))) { 5790 current_cp->flags1 &= ~(SCP_WCE | SCP_RCD); 5791 current_cp->flags1 |= user_cp->flags1 & (SCP_WCE | SCP_RCD); 5792 saved_cp->flags1 &= ~(SCP_WCE | SCP_RCD); 5793 saved_cp->flags1 |= user_cp->flags1 & (SCP_WCE | SCP_RCD); 5794 set_ua = 1; 5795 } 5796 if (set_ua != 0) 5797 ctl_est_ua_all(lun, initidx, CTL_UA_MODE_CHANGE); 5798 mtx_unlock(&lun->lun_lock); 5799 5800 return (0); 5801} 5802 5803int 5804ctl_debugconf_sp_select_handler(struct ctl_scsiio *ctsio, 5805 struct ctl_page_index *page_index, 5806 uint8_t *page_ptr) 5807{ 5808 uint8_t *c; 5809 int i; 5810 5811 c = ((struct copan_debugconf_subpage *)page_ptr)->ctl_time_io_secs; 5812 ctl_time_io_secs = 5813 (c[0] << 8) | 5814 (c[1] << 0) | 5815 0; 5816 CTL_DEBUG_PRINT(("set ctl_time_io_secs to %d\n", ctl_time_io_secs)); 5817 printf("set ctl_time_io_secs to %d\n", ctl_time_io_secs); 5818 printf("page data:"); 5819 for (i=0; i<8; i++) 5820 printf(" %.2x",page_ptr[i]); 5821 printf("\n"); 5822 return (0); 5823} 5824 5825int 5826ctl_debugconf_sp_sense_handler(struct ctl_scsiio *ctsio, 5827 struct ctl_page_index *page_index, 5828 int pc) 5829{ 5830 struct copan_debugconf_subpage *page; 5831 5832 page = (struct copan_debugconf_subpage *)page_index->page_data + 5833 (page_index->page_len * pc); 5834 5835 switch (pc) { 5836 case SMS_PAGE_CTRL_CHANGEABLE >> 6: 5837 case SMS_PAGE_CTRL_DEFAULT >> 6: 5838 case SMS_PAGE_CTRL_SAVED >> 6: 5839 /* 5840 * We don't update the changable or default bits for this page. 5841 */ 5842 break; 5843 case SMS_PAGE_CTRL_CURRENT >> 6: 5844 page->ctl_time_io_secs[0] = ctl_time_io_secs >> 8; 5845 page->ctl_time_io_secs[1] = ctl_time_io_secs >> 0; 5846 break; 5847 default: 5848#ifdef NEEDTOPORT 5849 EPRINT(0, "Invalid PC %d!!", pc); 5850#endif /* NEEDTOPORT */ 5851 break; 5852 } 5853 return (0); 5854} 5855 5856 5857static int 5858ctl_do_mode_select(union ctl_io *io) 5859{ 5860 struct scsi_mode_page_header *page_header; 5861 struct ctl_page_index *page_index; 5862 struct ctl_scsiio *ctsio; 5863 int control_dev, page_len; 5864 int page_len_offset, page_len_size; 5865 union ctl_modepage_info *modepage_info; 5866 struct ctl_lun *lun; 5867 int *len_left, *len_used; 5868 int retval, i; 5869 5870 ctsio = &io->scsiio; 5871 page_index = NULL; 5872 page_len = 0; 5873 retval = CTL_RETVAL_COMPLETE; 5874 5875 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5876 5877 if (lun->be_lun->lun_type != T_DIRECT) 5878 control_dev = 1; 5879 else 5880 control_dev = 0; 5881 5882 modepage_info = (union ctl_modepage_info *) 5883 ctsio->io_hdr.ctl_private[CTL_PRIV_MODEPAGE].bytes; 5884 len_left = &modepage_info->header.len_left; 5885 len_used = &modepage_info->header.len_used; 5886 5887do_next_page: 5888 5889 page_header = (struct scsi_mode_page_header *) 5890 (ctsio->kern_data_ptr + *len_used); 5891 5892 if (*len_left == 0) { 5893 free(ctsio->kern_data_ptr, M_CTL); 5894 ctl_set_success(ctsio); 5895 ctl_done((union ctl_io *)ctsio); 5896 return (CTL_RETVAL_COMPLETE); 5897 } else if (*len_left < sizeof(struct scsi_mode_page_header)) { 5898 5899 free(ctsio->kern_data_ptr, M_CTL); 5900 ctl_set_param_len_error(ctsio); 5901 ctl_done((union ctl_io *)ctsio); 5902 return (CTL_RETVAL_COMPLETE); 5903 5904 } else if ((page_header->page_code & SMPH_SPF) 5905 && (*len_left < sizeof(struct scsi_mode_page_header_sp))) { 5906 5907 free(ctsio->kern_data_ptr, M_CTL); 5908 ctl_set_param_len_error(ctsio); 5909 ctl_done((union ctl_io *)ctsio); 5910 return (CTL_RETVAL_COMPLETE); 5911 } 5912 5913 5914 /* 5915 * XXX KDM should we do something with the block descriptor? 5916 */ 5917 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 5918 5919 if ((control_dev != 0) 5920 && (lun->mode_pages.index[i].page_flags & 5921 CTL_PAGE_FLAG_DISK_ONLY)) 5922 continue; 5923 5924 if ((lun->mode_pages.index[i].page_code & SMPH_PC_MASK) != 5925 (page_header->page_code & SMPH_PC_MASK)) 5926 continue; 5927 5928 /* 5929 * If neither page has a subpage code, then we've got a 5930 * match. 5931 */ 5932 if (((lun->mode_pages.index[i].page_code & SMPH_SPF) == 0) 5933 && ((page_header->page_code & SMPH_SPF) == 0)) { 5934 page_index = &lun->mode_pages.index[i]; 5935 page_len = page_header->page_length; 5936 break; 5937 } 5938 5939 /* 5940 * If both pages have subpages, then the subpage numbers 5941 * have to match. 5942 */ 5943 if ((lun->mode_pages.index[i].page_code & SMPH_SPF) 5944 && (page_header->page_code & SMPH_SPF)) { 5945 struct scsi_mode_page_header_sp *sph; 5946 5947 sph = (struct scsi_mode_page_header_sp *)page_header; 5948 5949 if (lun->mode_pages.index[i].subpage == 5950 sph->subpage) { 5951 page_index = &lun->mode_pages.index[i]; 5952 page_len = scsi_2btoul(sph->page_length); 5953 break; 5954 } 5955 } 5956 } 5957 5958 /* 5959 * If we couldn't find the page, or if we don't have a mode select 5960 * handler for it, send back an error to the user. 5961 */ 5962 if ((page_index == NULL) 5963 || (page_index->select_handler == NULL)) { 5964 ctl_set_invalid_field(ctsio, 5965 /*sks_valid*/ 1, 5966 /*command*/ 0, 5967 /*field*/ *len_used, 5968 /*bit_valid*/ 0, 5969 /*bit*/ 0); 5970 free(ctsio->kern_data_ptr, M_CTL); 5971 ctl_done((union ctl_io *)ctsio); 5972 return (CTL_RETVAL_COMPLETE); 5973 } 5974 5975 if (page_index->page_code & SMPH_SPF) { 5976 page_len_offset = 2; 5977 page_len_size = 2; 5978 } else { 5979 page_len_size = 1; 5980 page_len_offset = 1; 5981 } 5982 5983 /* 5984 * If the length the initiator gives us isn't the one we specify in 5985 * the mode page header, or if they didn't specify enough data in 5986 * the CDB to avoid truncating this page, kick out the request. 5987 */ 5988 if ((page_len != (page_index->page_len - page_len_offset - 5989 page_len_size)) 5990 || (*len_left < page_index->page_len)) { 5991 5992 5993 ctl_set_invalid_field(ctsio, 5994 /*sks_valid*/ 1, 5995 /*command*/ 0, 5996 /*field*/ *len_used + page_len_offset, 5997 /*bit_valid*/ 0, 5998 /*bit*/ 0); 5999 free(ctsio->kern_data_ptr, M_CTL); 6000 ctl_done((union ctl_io *)ctsio); 6001 return (CTL_RETVAL_COMPLETE); 6002 } 6003 6004 /* 6005 * Run through the mode page, checking to make sure that the bits 6006 * the user changed are actually legal for him to change. 6007 */ 6008 for (i = 0; i < page_index->page_len; i++) { 6009 uint8_t *user_byte, *change_mask, *current_byte; 6010 int bad_bit; 6011 int j; 6012 6013 user_byte = (uint8_t *)page_header + i; 6014 change_mask = page_index->page_data + 6015 (page_index->page_len * CTL_PAGE_CHANGEABLE) + i; 6016 current_byte = page_index->page_data + 6017 (page_index->page_len * CTL_PAGE_CURRENT) + i; 6018 6019 /* 6020 * Check to see whether the user set any bits in this byte 6021 * that he is not allowed to set. 6022 */ 6023 if ((*user_byte & ~(*change_mask)) == 6024 (*current_byte & ~(*change_mask))) 6025 continue; 6026 6027 /* 6028 * Go through bit by bit to determine which one is illegal. 6029 */ 6030 bad_bit = 0; 6031 for (j = 7; j >= 0; j--) { 6032 if ((((1 << i) & ~(*change_mask)) & *user_byte) != 6033 (((1 << i) & ~(*change_mask)) & *current_byte)) { 6034 bad_bit = i; 6035 break; 6036 } 6037 } 6038 ctl_set_invalid_field(ctsio, 6039 /*sks_valid*/ 1, 6040 /*command*/ 0, 6041 /*field*/ *len_used + i, 6042 /*bit_valid*/ 1, 6043 /*bit*/ bad_bit); 6044 free(ctsio->kern_data_ptr, M_CTL); 6045 ctl_done((union ctl_io *)ctsio); 6046 return (CTL_RETVAL_COMPLETE); 6047 } 6048 6049 /* 6050 * Decrement these before we call the page handler, since we may 6051 * end up getting called back one way or another before the handler 6052 * returns to this context. 6053 */ 6054 *len_left -= page_index->page_len; 6055 *len_used += page_index->page_len; 6056 6057 retval = page_index->select_handler(ctsio, page_index, 6058 (uint8_t *)page_header); 6059 6060 /* 6061 * If the page handler returns CTL_RETVAL_QUEUED, then we need to 6062 * wait until this queued command completes to finish processing 6063 * the mode page. If it returns anything other than 6064 * CTL_RETVAL_COMPLETE (e.g. CTL_RETVAL_ERROR), then it should have 6065 * already set the sense information, freed the data pointer, and 6066 * completed the io for us. 6067 */ 6068 if (retval != CTL_RETVAL_COMPLETE) 6069 goto bailout_no_done; 6070 6071 /* 6072 * If the initiator sent us more than one page, parse the next one. 6073 */ 6074 if (*len_left > 0) 6075 goto do_next_page; 6076 6077 ctl_set_success(ctsio); 6078 free(ctsio->kern_data_ptr, M_CTL); 6079 ctl_done((union ctl_io *)ctsio); 6080 6081bailout_no_done: 6082 6083 return (CTL_RETVAL_COMPLETE); 6084 6085} 6086 6087int 6088ctl_mode_select(struct ctl_scsiio *ctsio) 6089{ 6090 int param_len, pf, sp; 6091 int header_size, bd_len; 6092 int len_left, len_used; 6093 struct ctl_page_index *page_index; 6094 struct ctl_lun *lun; 6095 int control_dev, page_len; 6096 union ctl_modepage_info *modepage_info; 6097 int retval; 6098 6099 pf = 0; 6100 sp = 0; 6101 page_len = 0; 6102 len_used = 0; 6103 len_left = 0; 6104 retval = 0; 6105 bd_len = 0; 6106 page_index = NULL; 6107 6108 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6109 6110 if (lun->be_lun->lun_type != T_DIRECT) 6111 control_dev = 1; 6112 else 6113 control_dev = 0; 6114 6115 switch (ctsio->cdb[0]) { 6116 case MODE_SELECT_6: { 6117 struct scsi_mode_select_6 *cdb; 6118 6119 cdb = (struct scsi_mode_select_6 *)ctsio->cdb; 6120 6121 pf = (cdb->byte2 & SMS_PF) ? 1 : 0; 6122 sp = (cdb->byte2 & SMS_SP) ? 1 : 0; 6123 6124 param_len = cdb->length; 6125 header_size = sizeof(struct scsi_mode_header_6); 6126 break; 6127 } 6128 case MODE_SELECT_10: { 6129 struct scsi_mode_select_10 *cdb; 6130 6131 cdb = (struct scsi_mode_select_10 *)ctsio->cdb; 6132 6133 pf = (cdb->byte2 & SMS_PF) ? 1 : 0; 6134 sp = (cdb->byte2 & SMS_SP) ? 1 : 0; 6135 6136 param_len = scsi_2btoul(cdb->length); 6137 header_size = sizeof(struct scsi_mode_header_10); 6138 break; 6139 } 6140 default: 6141 ctl_set_invalid_opcode(ctsio); 6142 ctl_done((union ctl_io *)ctsio); 6143 return (CTL_RETVAL_COMPLETE); 6144 break; /* NOTREACHED */ 6145 } 6146 6147 /* 6148 * From SPC-3: 6149 * "A parameter list length of zero indicates that the Data-Out Buffer 6150 * shall be empty. This condition shall not be considered as an error." 6151 */ 6152 if (param_len == 0) { 6153 ctl_set_success(ctsio); 6154 ctl_done((union ctl_io *)ctsio); 6155 return (CTL_RETVAL_COMPLETE); 6156 } 6157 6158 /* 6159 * Since we'll hit this the first time through, prior to 6160 * allocation, we don't need to free a data buffer here. 6161 */ 6162 if (param_len < header_size) { 6163 ctl_set_param_len_error(ctsio); 6164 ctl_done((union ctl_io *)ctsio); 6165 return (CTL_RETVAL_COMPLETE); 6166 } 6167 6168 /* 6169 * Allocate the data buffer and grab the user's data. In theory, 6170 * we shouldn't have to sanity check the parameter list length here 6171 * because the maximum size is 64K. We should be able to malloc 6172 * that much without too many problems. 6173 */ 6174 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 6175 ctsio->kern_data_ptr = malloc(param_len, M_CTL, M_WAITOK); 6176 ctsio->kern_data_len = param_len; 6177 ctsio->kern_total_len = param_len; 6178 ctsio->kern_data_resid = 0; 6179 ctsio->kern_rel_offset = 0; 6180 ctsio->kern_sg_entries = 0; 6181 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6182 ctsio->be_move_done = ctl_config_move_done; 6183 ctl_datamove((union ctl_io *)ctsio); 6184 6185 return (CTL_RETVAL_COMPLETE); 6186 } 6187 6188 switch (ctsio->cdb[0]) { 6189 case MODE_SELECT_6: { 6190 struct scsi_mode_header_6 *mh6; 6191 6192 mh6 = (struct scsi_mode_header_6 *)ctsio->kern_data_ptr; 6193 bd_len = mh6->blk_desc_len; 6194 break; 6195 } 6196 case MODE_SELECT_10: { 6197 struct scsi_mode_header_10 *mh10; 6198 6199 mh10 = (struct scsi_mode_header_10 *)ctsio->kern_data_ptr; 6200 bd_len = scsi_2btoul(mh10->blk_desc_len); 6201 break; 6202 } 6203 default: 6204 panic("Invalid CDB type %#x", ctsio->cdb[0]); 6205 break; 6206 } 6207 6208 if (param_len < (header_size + bd_len)) { 6209 free(ctsio->kern_data_ptr, M_CTL); 6210 ctl_set_param_len_error(ctsio); 6211 ctl_done((union ctl_io *)ctsio); 6212 return (CTL_RETVAL_COMPLETE); 6213 } 6214 6215 /* 6216 * Set the IO_CONT flag, so that if this I/O gets passed to 6217 * ctl_config_write_done(), it'll get passed back to 6218 * ctl_do_mode_select() for further processing, or completion if 6219 * we're all done. 6220 */ 6221 ctsio->io_hdr.flags |= CTL_FLAG_IO_CONT; 6222 ctsio->io_cont = ctl_do_mode_select; 6223 6224 modepage_info = (union ctl_modepage_info *) 6225 ctsio->io_hdr.ctl_private[CTL_PRIV_MODEPAGE].bytes; 6226 6227 memset(modepage_info, 0, sizeof(*modepage_info)); 6228 6229 len_left = param_len - header_size - bd_len; 6230 len_used = header_size + bd_len; 6231 6232 modepage_info->header.len_left = len_left; 6233 modepage_info->header.len_used = len_used; 6234 6235 return (ctl_do_mode_select((union ctl_io *)ctsio)); 6236} 6237 6238int 6239ctl_mode_sense(struct ctl_scsiio *ctsio) 6240{ 6241 struct ctl_lun *lun; 6242 int pc, page_code, dbd, llba, subpage; 6243 int alloc_len, page_len, header_len, total_len; 6244 struct scsi_mode_block_descr *block_desc; 6245 struct ctl_page_index *page_index; 6246 int control_dev; 6247 6248 dbd = 0; 6249 llba = 0; 6250 block_desc = NULL; 6251 page_index = NULL; 6252 6253 CTL_DEBUG_PRINT(("ctl_mode_sense\n")); 6254 6255 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6256 6257 if (lun->be_lun->lun_type != T_DIRECT) 6258 control_dev = 1; 6259 else 6260 control_dev = 0; 6261 6262 switch (ctsio->cdb[0]) { 6263 case MODE_SENSE_6: { 6264 struct scsi_mode_sense_6 *cdb; 6265 6266 cdb = (struct scsi_mode_sense_6 *)ctsio->cdb; 6267 6268 header_len = sizeof(struct scsi_mode_hdr_6); 6269 if (cdb->byte2 & SMS_DBD) 6270 dbd = 1; 6271 else 6272 header_len += sizeof(struct scsi_mode_block_descr); 6273 6274 pc = (cdb->page & SMS_PAGE_CTRL_MASK) >> 6; 6275 page_code = cdb->page & SMS_PAGE_CODE; 6276 subpage = cdb->subpage; 6277 alloc_len = cdb->length; 6278 break; 6279 } 6280 case MODE_SENSE_10: { 6281 struct scsi_mode_sense_10 *cdb; 6282 6283 cdb = (struct scsi_mode_sense_10 *)ctsio->cdb; 6284 6285 header_len = sizeof(struct scsi_mode_hdr_10); 6286 6287 if (cdb->byte2 & SMS_DBD) 6288 dbd = 1; 6289 else 6290 header_len += sizeof(struct scsi_mode_block_descr); 6291 if (cdb->byte2 & SMS10_LLBAA) 6292 llba = 1; 6293 pc = (cdb->page & SMS_PAGE_CTRL_MASK) >> 6; 6294 page_code = cdb->page & SMS_PAGE_CODE; 6295 subpage = cdb->subpage; 6296 alloc_len = scsi_2btoul(cdb->length); 6297 break; 6298 } 6299 default: 6300 ctl_set_invalid_opcode(ctsio); 6301 ctl_done((union ctl_io *)ctsio); 6302 return (CTL_RETVAL_COMPLETE); 6303 break; /* NOTREACHED */ 6304 } 6305 6306 /* 6307 * We have to make a first pass through to calculate the size of 6308 * the pages that match the user's query. Then we allocate enough 6309 * memory to hold it, and actually copy the data into the buffer. 6310 */ 6311 switch (page_code) { 6312 case SMS_ALL_PAGES_PAGE: { 6313 int i; 6314 6315 page_len = 0; 6316 6317 /* 6318 * At the moment, values other than 0 and 0xff here are 6319 * reserved according to SPC-3. 6320 */ 6321 if ((subpage != SMS_SUBPAGE_PAGE_0) 6322 && (subpage != SMS_SUBPAGE_ALL)) { 6323 ctl_set_invalid_field(ctsio, 6324 /*sks_valid*/ 1, 6325 /*command*/ 1, 6326 /*field*/ 3, 6327 /*bit_valid*/ 0, 6328 /*bit*/ 0); 6329 ctl_done((union ctl_io *)ctsio); 6330 return (CTL_RETVAL_COMPLETE); 6331 } 6332 6333 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6334 if ((control_dev != 0) 6335 && (lun->mode_pages.index[i].page_flags & 6336 CTL_PAGE_FLAG_DISK_ONLY)) 6337 continue; 6338 6339 /* 6340 * We don't use this subpage if the user didn't 6341 * request all subpages. 6342 */ 6343 if ((lun->mode_pages.index[i].subpage != 0) 6344 && (subpage == SMS_SUBPAGE_PAGE_0)) 6345 continue; 6346 6347#if 0 6348 printf("found page %#x len %d\n", 6349 lun->mode_pages.index[i].page_code & 6350 SMPH_PC_MASK, 6351 lun->mode_pages.index[i].page_len); 6352#endif 6353 page_len += lun->mode_pages.index[i].page_len; 6354 } 6355 break; 6356 } 6357 default: { 6358 int i; 6359 6360 page_len = 0; 6361 6362 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6363 /* Look for the right page code */ 6364 if ((lun->mode_pages.index[i].page_code & 6365 SMPH_PC_MASK) != page_code) 6366 continue; 6367 6368 /* Look for the right subpage or the subpage wildcard*/ 6369 if ((lun->mode_pages.index[i].subpage != subpage) 6370 && (subpage != SMS_SUBPAGE_ALL)) 6371 continue; 6372 6373 /* Make sure the page is supported for this dev type */ 6374 if ((control_dev != 0) 6375 && (lun->mode_pages.index[i].page_flags & 6376 CTL_PAGE_FLAG_DISK_ONLY)) 6377 continue; 6378 6379#if 0 6380 printf("found page %#x len %d\n", 6381 lun->mode_pages.index[i].page_code & 6382 SMPH_PC_MASK, 6383 lun->mode_pages.index[i].page_len); 6384#endif 6385 6386 page_len += lun->mode_pages.index[i].page_len; 6387 } 6388 6389 if (page_len == 0) { 6390 ctl_set_invalid_field(ctsio, 6391 /*sks_valid*/ 1, 6392 /*command*/ 1, 6393 /*field*/ 2, 6394 /*bit_valid*/ 1, 6395 /*bit*/ 5); 6396 ctl_done((union ctl_io *)ctsio); 6397 return (CTL_RETVAL_COMPLETE); 6398 } 6399 break; 6400 } 6401 } 6402 6403 total_len = header_len + page_len; 6404#if 0 6405 printf("header_len = %d, page_len = %d, total_len = %d\n", 6406 header_len, page_len, total_len); 6407#endif 6408 6409 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 6410 ctsio->kern_sg_entries = 0; 6411 ctsio->kern_data_resid = 0; 6412 ctsio->kern_rel_offset = 0; 6413 if (total_len < alloc_len) { 6414 ctsio->residual = alloc_len - total_len; 6415 ctsio->kern_data_len = total_len; 6416 ctsio->kern_total_len = total_len; 6417 } else { 6418 ctsio->residual = 0; 6419 ctsio->kern_data_len = alloc_len; 6420 ctsio->kern_total_len = alloc_len; 6421 } 6422 6423 switch (ctsio->cdb[0]) { 6424 case MODE_SENSE_6: { 6425 struct scsi_mode_hdr_6 *header; 6426 6427 header = (struct scsi_mode_hdr_6 *)ctsio->kern_data_ptr; 6428 6429 header->datalen = MIN(total_len - 1, 254); 6430 if (control_dev == 0) { 6431 header->dev_specific = 0x10; /* DPOFUA */ 6432 if ((lun->be_lun->flags & CTL_LUN_FLAG_READONLY) || 6433 (lun->mode_pages.control_page[CTL_PAGE_CURRENT] 6434 .eca_and_aen & SCP_SWP) != 0) 6435 header->dev_specific |= 0x80; /* WP */ 6436 } 6437 if (dbd) 6438 header->block_descr_len = 0; 6439 else 6440 header->block_descr_len = 6441 sizeof(struct scsi_mode_block_descr); 6442 block_desc = (struct scsi_mode_block_descr *)&header[1]; 6443 break; 6444 } 6445 case MODE_SENSE_10: { 6446 struct scsi_mode_hdr_10 *header; 6447 int datalen; 6448 6449 header = (struct scsi_mode_hdr_10 *)ctsio->kern_data_ptr; 6450 6451 datalen = MIN(total_len - 2, 65533); 6452 scsi_ulto2b(datalen, header->datalen); 6453 if (control_dev == 0) { 6454 header->dev_specific = 0x10; /* DPOFUA */ 6455 if ((lun->be_lun->flags & CTL_LUN_FLAG_READONLY) || 6456 (lun->mode_pages.control_page[CTL_PAGE_CURRENT] 6457 .eca_and_aen & SCP_SWP) != 0) 6458 header->dev_specific |= 0x80; /* WP */ 6459 } 6460 if (dbd) 6461 scsi_ulto2b(0, header->block_descr_len); 6462 else 6463 scsi_ulto2b(sizeof(struct scsi_mode_block_descr), 6464 header->block_descr_len); 6465 block_desc = (struct scsi_mode_block_descr *)&header[1]; 6466 break; 6467 } 6468 default: 6469 panic("invalid CDB type %#x", ctsio->cdb[0]); 6470 break; /* NOTREACHED */ 6471 } 6472 6473 /* 6474 * If we've got a disk, use its blocksize in the block 6475 * descriptor. Otherwise, just set it to 0. 6476 */ 6477 if (dbd == 0) { 6478 if (control_dev == 0) 6479 scsi_ulto3b(lun->be_lun->blocksize, 6480 block_desc->block_len); 6481 else 6482 scsi_ulto3b(0, block_desc->block_len); 6483 } 6484 6485 switch (page_code) { 6486 case SMS_ALL_PAGES_PAGE: { 6487 int i, data_used; 6488 6489 data_used = header_len; 6490 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6491 struct ctl_page_index *page_index; 6492 6493 page_index = &lun->mode_pages.index[i]; 6494 6495 if ((control_dev != 0) 6496 && (page_index->page_flags & 6497 CTL_PAGE_FLAG_DISK_ONLY)) 6498 continue; 6499 6500 /* 6501 * We don't use this subpage if the user didn't 6502 * request all subpages. We already checked (above) 6503 * to make sure the user only specified a subpage 6504 * of 0 or 0xff in the SMS_ALL_PAGES_PAGE case. 6505 */ 6506 if ((page_index->subpage != 0) 6507 && (subpage == SMS_SUBPAGE_PAGE_0)) 6508 continue; 6509 6510 /* 6511 * Call the handler, if it exists, to update the 6512 * page to the latest values. 6513 */ 6514 if (page_index->sense_handler != NULL) 6515 page_index->sense_handler(ctsio, page_index,pc); 6516 6517 memcpy(ctsio->kern_data_ptr + data_used, 6518 page_index->page_data + 6519 (page_index->page_len * pc), 6520 page_index->page_len); 6521 data_used += page_index->page_len; 6522 } 6523 break; 6524 } 6525 default: { 6526 int i, data_used; 6527 6528 data_used = header_len; 6529 6530 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6531 struct ctl_page_index *page_index; 6532 6533 page_index = &lun->mode_pages.index[i]; 6534 6535 /* Look for the right page code */ 6536 if ((page_index->page_code & SMPH_PC_MASK) != page_code) 6537 continue; 6538 6539 /* Look for the right subpage or the subpage wildcard*/ 6540 if ((page_index->subpage != subpage) 6541 && (subpage != SMS_SUBPAGE_ALL)) 6542 continue; 6543 6544 /* Make sure the page is supported for this dev type */ 6545 if ((control_dev != 0) 6546 && (page_index->page_flags & 6547 CTL_PAGE_FLAG_DISK_ONLY)) 6548 continue; 6549 6550 /* 6551 * Call the handler, if it exists, to update the 6552 * page to the latest values. 6553 */ 6554 if (page_index->sense_handler != NULL) 6555 page_index->sense_handler(ctsio, page_index,pc); 6556 6557 memcpy(ctsio->kern_data_ptr + data_used, 6558 page_index->page_data + 6559 (page_index->page_len * pc), 6560 page_index->page_len); 6561 data_used += page_index->page_len; 6562 } 6563 break; 6564 } 6565 } 6566 6567 ctl_set_success(ctsio); 6568 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6569 ctsio->be_move_done = ctl_config_move_done; 6570 ctl_datamove((union ctl_io *)ctsio); 6571 return (CTL_RETVAL_COMPLETE); 6572} 6573 6574int 6575ctl_lbp_log_sense_handler(struct ctl_scsiio *ctsio, 6576 struct ctl_page_index *page_index, 6577 int pc) 6578{ 6579 struct ctl_lun *lun; 6580 struct scsi_log_param_header *phdr; 6581 uint8_t *data; 6582 uint64_t val; 6583 6584 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6585 data = page_index->page_data; 6586 6587 if (lun->backend->lun_attr != NULL && 6588 (val = lun->backend->lun_attr(lun->be_lun->be_lun, "blocksavail")) 6589 != UINT64_MAX) { 6590 phdr = (struct scsi_log_param_header *)data; 6591 scsi_ulto2b(0x0001, phdr->param_code); 6592 phdr->param_control = SLP_LBIN | SLP_LP; 6593 phdr->param_len = 8; 6594 data = (uint8_t *)(phdr + 1); 6595 scsi_ulto4b(val >> CTL_LBP_EXPONENT, data); 6596 data[4] = 0x02; /* per-pool */ 6597 data += phdr->param_len; 6598 } 6599 6600 if (lun->backend->lun_attr != NULL && 6601 (val = lun->backend->lun_attr(lun->be_lun->be_lun, "blocksused")) 6602 != UINT64_MAX) { 6603 phdr = (struct scsi_log_param_header *)data; 6604 scsi_ulto2b(0x0002, phdr->param_code); 6605 phdr->param_control = SLP_LBIN | SLP_LP; 6606 phdr->param_len = 8; 6607 data = (uint8_t *)(phdr + 1); 6608 scsi_ulto4b(val >> CTL_LBP_EXPONENT, data); 6609 data[4] = 0x01; /* per-LUN */ 6610 data += phdr->param_len; 6611 } 6612 6613 if (lun->backend->lun_attr != NULL && 6614 (val = lun->backend->lun_attr(lun->be_lun->be_lun, "poolblocksavail")) 6615 != UINT64_MAX) { 6616 phdr = (struct scsi_log_param_header *)data; 6617 scsi_ulto2b(0x00f1, phdr->param_code); 6618 phdr->param_control = SLP_LBIN | SLP_LP; 6619 phdr->param_len = 8; 6620 data = (uint8_t *)(phdr + 1); 6621 scsi_ulto4b(val >> CTL_LBP_EXPONENT, data); 6622 data[4] = 0x02; /* per-pool */ 6623 data += phdr->param_len; 6624 } 6625 6626 if (lun->backend->lun_attr != NULL && 6627 (val = lun->backend->lun_attr(lun->be_lun->be_lun, "poolblocksused")) 6628 != UINT64_MAX) { 6629 phdr = (struct scsi_log_param_header *)data; 6630 scsi_ulto2b(0x00f2, phdr->param_code); 6631 phdr->param_control = SLP_LBIN | SLP_LP; 6632 phdr->param_len = 8; 6633 data = (uint8_t *)(phdr + 1); 6634 scsi_ulto4b(val >> CTL_LBP_EXPONENT, data); 6635 data[4] = 0x02; /* per-pool */ 6636 data += phdr->param_len; 6637 } 6638 6639 page_index->page_len = data - page_index->page_data; 6640 return (0); 6641} 6642 6643int 6644ctl_sap_log_sense_handler(struct ctl_scsiio *ctsio, 6645 struct ctl_page_index *page_index, 6646 int pc) 6647{ 6648 struct ctl_lun *lun; 6649 struct stat_page *data; 6650 uint64_t rn, wn, rb, wb; 6651 struct bintime rt, wt; 6652 int i; 6653 6654 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6655 data = (struct stat_page *)page_index->page_data; 6656 6657 scsi_ulto2b(SLP_SAP, data->sap.hdr.param_code); 6658 data->sap.hdr.param_control = SLP_LBIN; 6659 data->sap.hdr.param_len = sizeof(struct scsi_log_stat_and_perf) - 6660 sizeof(struct scsi_log_param_header); 6661 rn = wn = rb = wb = 0; 6662 bintime_clear(&rt); 6663 bintime_clear(&wt); 6664 for (i = 0; i < CTL_MAX_PORTS; i++) { 6665 rn += lun->stats.ports[i].operations[CTL_STATS_READ]; 6666 wn += lun->stats.ports[i].operations[CTL_STATS_WRITE]; 6667 rb += lun->stats.ports[i].bytes[CTL_STATS_READ]; 6668 wb += lun->stats.ports[i].bytes[CTL_STATS_WRITE]; 6669 bintime_add(&rt, &lun->stats.ports[i].time[CTL_STATS_READ]); 6670 bintime_add(&wt, &lun->stats.ports[i].time[CTL_STATS_WRITE]); 6671 } 6672 scsi_u64to8b(rn, data->sap.read_num); 6673 scsi_u64to8b(wn, data->sap.write_num); 6674 if (lun->stats.blocksize > 0) { 6675 scsi_u64to8b(wb / lun->stats.blocksize, 6676 data->sap.recvieved_lba); 6677 scsi_u64to8b(rb / lun->stats.blocksize, 6678 data->sap.transmitted_lba); 6679 } 6680 scsi_u64to8b((uint64_t)rt.sec * 1000 + rt.frac / (UINT64_MAX / 1000), 6681 data->sap.read_int); 6682 scsi_u64to8b((uint64_t)wt.sec * 1000 + wt.frac / (UINT64_MAX / 1000), 6683 data->sap.write_int); 6684 scsi_u64to8b(0, data->sap.weighted_num); 6685 scsi_u64to8b(0, data->sap.weighted_int); 6686 scsi_ulto2b(SLP_IT, data->it.hdr.param_code); 6687 data->it.hdr.param_control = SLP_LBIN; 6688 data->it.hdr.param_len = sizeof(struct scsi_log_idle_time) - 6689 sizeof(struct scsi_log_param_header); 6690#ifdef CTL_TIME_IO 6691 scsi_u64to8b(lun->idle_time / SBT_1MS, data->it.idle_int); 6692#endif 6693 scsi_ulto2b(SLP_TI, data->ti.hdr.param_code); 6694 data->it.hdr.param_control = SLP_LBIN; 6695 data->ti.hdr.param_len = sizeof(struct scsi_log_time_interval) - 6696 sizeof(struct scsi_log_param_header); 6697 scsi_ulto4b(3, data->ti.exponent); 6698 scsi_ulto4b(1, data->ti.integer); 6699 6700 page_index->page_len = sizeof(*data); 6701 return (0); 6702} 6703 6704int 6705ctl_log_sense(struct ctl_scsiio *ctsio) 6706{ 6707 struct ctl_lun *lun; 6708 int i, pc, page_code, subpage; 6709 int alloc_len, total_len; 6710 struct ctl_page_index *page_index; 6711 struct scsi_log_sense *cdb; 6712 struct scsi_log_header *header; 6713 6714 CTL_DEBUG_PRINT(("ctl_log_sense\n")); 6715 6716 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6717 cdb = (struct scsi_log_sense *)ctsio->cdb; 6718 pc = (cdb->page & SLS_PAGE_CTRL_MASK) >> 6; 6719 page_code = cdb->page & SLS_PAGE_CODE; 6720 subpage = cdb->subpage; 6721 alloc_len = scsi_2btoul(cdb->length); 6722 6723 page_index = NULL; 6724 for (i = 0; i < CTL_NUM_LOG_PAGES; i++) { 6725 page_index = &lun->log_pages.index[i]; 6726 6727 /* Look for the right page code */ 6728 if ((page_index->page_code & SL_PAGE_CODE) != page_code) 6729 continue; 6730 6731 /* Look for the right subpage or the subpage wildcard*/ 6732 if (page_index->subpage != subpage) 6733 continue; 6734 6735 break; 6736 } 6737 if (i >= CTL_NUM_LOG_PAGES) { 6738 ctl_set_invalid_field(ctsio, 6739 /*sks_valid*/ 1, 6740 /*command*/ 1, 6741 /*field*/ 2, 6742 /*bit_valid*/ 0, 6743 /*bit*/ 0); 6744 ctl_done((union ctl_io *)ctsio); 6745 return (CTL_RETVAL_COMPLETE); 6746 } 6747 6748 total_len = sizeof(struct scsi_log_header) + page_index->page_len; 6749 6750 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 6751 ctsio->kern_sg_entries = 0; 6752 ctsio->kern_data_resid = 0; 6753 ctsio->kern_rel_offset = 0; 6754 if (total_len < alloc_len) { 6755 ctsio->residual = alloc_len - total_len; 6756 ctsio->kern_data_len = total_len; 6757 ctsio->kern_total_len = total_len; 6758 } else { 6759 ctsio->residual = 0; 6760 ctsio->kern_data_len = alloc_len; 6761 ctsio->kern_total_len = alloc_len; 6762 } 6763 6764 header = (struct scsi_log_header *)ctsio->kern_data_ptr; 6765 header->page = page_index->page_code; 6766 if (page_index->subpage) { 6767 header->page |= SL_SPF; 6768 header->subpage = page_index->subpage; 6769 } 6770 scsi_ulto2b(page_index->page_len, header->datalen); 6771 6772 /* 6773 * Call the handler, if it exists, to update the 6774 * page to the latest values. 6775 */ 6776 if (page_index->sense_handler != NULL) 6777 page_index->sense_handler(ctsio, page_index, pc); 6778 6779 memcpy(header + 1, page_index->page_data, page_index->page_len); 6780 6781 ctl_set_success(ctsio); 6782 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6783 ctsio->be_move_done = ctl_config_move_done; 6784 ctl_datamove((union ctl_io *)ctsio); 6785 return (CTL_RETVAL_COMPLETE); 6786} 6787 6788int 6789ctl_read_capacity(struct ctl_scsiio *ctsio) 6790{ 6791 struct scsi_read_capacity *cdb; 6792 struct scsi_read_capacity_data *data; 6793 struct ctl_lun *lun; 6794 uint32_t lba; 6795 6796 CTL_DEBUG_PRINT(("ctl_read_capacity\n")); 6797 6798 cdb = (struct scsi_read_capacity *)ctsio->cdb; 6799 6800 lba = scsi_4btoul(cdb->addr); 6801 if (((cdb->pmi & SRC_PMI) == 0) 6802 && (lba != 0)) { 6803 ctl_set_invalid_field(/*ctsio*/ ctsio, 6804 /*sks_valid*/ 1, 6805 /*command*/ 1, 6806 /*field*/ 2, 6807 /*bit_valid*/ 0, 6808 /*bit*/ 0); 6809 ctl_done((union ctl_io *)ctsio); 6810 return (CTL_RETVAL_COMPLETE); 6811 } 6812 6813 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6814 6815 ctsio->kern_data_ptr = malloc(sizeof(*data), M_CTL, M_WAITOK | M_ZERO); 6816 data = (struct scsi_read_capacity_data *)ctsio->kern_data_ptr; 6817 ctsio->residual = 0; 6818 ctsio->kern_data_len = sizeof(*data); 6819 ctsio->kern_total_len = sizeof(*data); 6820 ctsio->kern_data_resid = 0; 6821 ctsio->kern_rel_offset = 0; 6822 ctsio->kern_sg_entries = 0; 6823 6824 /* 6825 * If the maximum LBA is greater than 0xfffffffe, the user must 6826 * issue a SERVICE ACTION IN (16) command, with the read capacity 6827 * serivce action set. 6828 */ 6829 if (lun->be_lun->maxlba > 0xfffffffe) 6830 scsi_ulto4b(0xffffffff, data->addr); 6831 else 6832 scsi_ulto4b(lun->be_lun->maxlba, data->addr); 6833 6834 /* 6835 * XXX KDM this may not be 512 bytes... 6836 */ 6837 scsi_ulto4b(lun->be_lun->blocksize, data->length); 6838 6839 ctl_set_success(ctsio); 6840 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6841 ctsio->be_move_done = ctl_config_move_done; 6842 ctl_datamove((union ctl_io *)ctsio); 6843 return (CTL_RETVAL_COMPLETE); 6844} 6845 6846int 6847ctl_read_capacity_16(struct ctl_scsiio *ctsio) 6848{ 6849 struct scsi_read_capacity_16 *cdb; 6850 struct scsi_read_capacity_data_long *data; 6851 struct ctl_lun *lun; 6852 uint64_t lba; 6853 uint32_t alloc_len; 6854 6855 CTL_DEBUG_PRINT(("ctl_read_capacity_16\n")); 6856 6857 cdb = (struct scsi_read_capacity_16 *)ctsio->cdb; 6858 6859 alloc_len = scsi_4btoul(cdb->alloc_len); 6860 lba = scsi_8btou64(cdb->addr); 6861 6862 if ((cdb->reladr & SRC16_PMI) 6863 && (lba != 0)) { 6864 ctl_set_invalid_field(/*ctsio*/ ctsio, 6865 /*sks_valid*/ 1, 6866 /*command*/ 1, 6867 /*field*/ 2, 6868 /*bit_valid*/ 0, 6869 /*bit*/ 0); 6870 ctl_done((union ctl_io *)ctsio); 6871 return (CTL_RETVAL_COMPLETE); 6872 } 6873 6874 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6875 6876 ctsio->kern_data_ptr = malloc(sizeof(*data), M_CTL, M_WAITOK | M_ZERO); 6877 data = (struct scsi_read_capacity_data_long *)ctsio->kern_data_ptr; 6878 6879 if (sizeof(*data) < alloc_len) { 6880 ctsio->residual = alloc_len - sizeof(*data); 6881 ctsio->kern_data_len = sizeof(*data); 6882 ctsio->kern_total_len = sizeof(*data); 6883 } else { 6884 ctsio->residual = 0; 6885 ctsio->kern_data_len = alloc_len; 6886 ctsio->kern_total_len = alloc_len; 6887 } 6888 ctsio->kern_data_resid = 0; 6889 ctsio->kern_rel_offset = 0; 6890 ctsio->kern_sg_entries = 0; 6891 6892 scsi_u64to8b(lun->be_lun->maxlba, data->addr); 6893 /* XXX KDM this may not be 512 bytes... */ 6894 scsi_ulto4b(lun->be_lun->blocksize, data->length); 6895 data->prot_lbppbe = lun->be_lun->pblockexp & SRC16_LBPPBE; 6896 scsi_ulto2b(lun->be_lun->pblockoff & SRC16_LALBA_A, data->lalba_lbp); 6897 if (lun->be_lun->flags & CTL_LUN_FLAG_UNMAP) 6898 data->lalba_lbp[0] |= SRC16_LBPME | SRC16_LBPRZ; 6899 6900 ctl_set_success(ctsio); 6901 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6902 ctsio->be_move_done = ctl_config_move_done; 6903 ctl_datamove((union ctl_io *)ctsio); 6904 return (CTL_RETVAL_COMPLETE); 6905} 6906 6907int 6908ctl_get_lba_status(struct ctl_scsiio *ctsio) 6909{ 6910 struct scsi_get_lba_status *cdb; 6911 struct scsi_get_lba_status_data *data; 6912 struct ctl_lun *lun; 6913 struct ctl_lba_len_flags *lbalen; 6914 uint64_t lba; 6915 uint32_t alloc_len, total_len; 6916 int retval; 6917 6918 CTL_DEBUG_PRINT(("ctl_get_lba_status\n")); 6919 6920 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6921 cdb = (struct scsi_get_lba_status *)ctsio->cdb; 6922 lba = scsi_8btou64(cdb->addr); 6923 alloc_len = scsi_4btoul(cdb->alloc_len); 6924 6925 if (lba > lun->be_lun->maxlba) { 6926 ctl_set_lba_out_of_range(ctsio); 6927 ctl_done((union ctl_io *)ctsio); 6928 return (CTL_RETVAL_COMPLETE); 6929 } 6930 6931 total_len = sizeof(*data) + sizeof(data->descr[0]); 6932 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 6933 data = (struct scsi_get_lba_status_data *)ctsio->kern_data_ptr; 6934 6935 if (total_len < alloc_len) { 6936 ctsio->residual = alloc_len - total_len; 6937 ctsio->kern_data_len = total_len; 6938 ctsio->kern_total_len = total_len; 6939 } else { 6940 ctsio->residual = 0; 6941 ctsio->kern_data_len = alloc_len; 6942 ctsio->kern_total_len = alloc_len; 6943 } 6944 ctsio->kern_data_resid = 0; 6945 ctsio->kern_rel_offset = 0; 6946 ctsio->kern_sg_entries = 0; 6947 6948 /* Fill dummy data in case backend can't tell anything. */ 6949 scsi_ulto4b(4 + sizeof(data->descr[0]), data->length); 6950 scsi_u64to8b(lba, data->descr[0].addr); 6951 scsi_ulto4b(MIN(UINT32_MAX, lun->be_lun->maxlba + 1 - lba), 6952 data->descr[0].length); 6953 data->descr[0].status = 0; /* Mapped or unknown. */ 6954 6955 ctl_set_success(ctsio); 6956 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6957 ctsio->be_move_done = ctl_config_move_done; 6958 6959 lbalen = (struct ctl_lba_len_flags *)&ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 6960 lbalen->lba = lba; 6961 lbalen->len = total_len; 6962 lbalen->flags = 0; 6963 retval = lun->backend->config_read((union ctl_io *)ctsio); 6964 return (CTL_RETVAL_COMPLETE); 6965} 6966 6967int 6968ctl_read_defect(struct ctl_scsiio *ctsio) 6969{ 6970 struct scsi_read_defect_data_10 *ccb10; 6971 struct scsi_read_defect_data_12 *ccb12; 6972 struct scsi_read_defect_data_hdr_10 *data10; 6973 struct scsi_read_defect_data_hdr_12 *data12; 6974 uint32_t alloc_len, data_len; 6975 uint8_t format; 6976 6977 CTL_DEBUG_PRINT(("ctl_read_defect\n")); 6978 6979 if (ctsio->cdb[0] == READ_DEFECT_DATA_10) { 6980 ccb10 = (struct scsi_read_defect_data_10 *)&ctsio->cdb; 6981 format = ccb10->format; 6982 alloc_len = scsi_2btoul(ccb10->alloc_length); 6983 data_len = sizeof(*data10); 6984 } else { 6985 ccb12 = (struct scsi_read_defect_data_12 *)&ctsio->cdb; 6986 format = ccb12->format; 6987 alloc_len = scsi_4btoul(ccb12->alloc_length); 6988 data_len = sizeof(*data12); 6989 } 6990 if (alloc_len == 0) { 6991 ctl_set_success(ctsio); 6992 ctl_done((union ctl_io *)ctsio); 6993 return (CTL_RETVAL_COMPLETE); 6994 } 6995 6996 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 6997 if (data_len < alloc_len) { 6998 ctsio->residual = alloc_len - data_len; 6999 ctsio->kern_data_len = data_len; 7000 ctsio->kern_total_len = data_len; 7001 } else { 7002 ctsio->residual = 0; 7003 ctsio->kern_data_len = alloc_len; 7004 ctsio->kern_total_len = alloc_len; 7005 } 7006 ctsio->kern_data_resid = 0; 7007 ctsio->kern_rel_offset = 0; 7008 ctsio->kern_sg_entries = 0; 7009 7010 if (ctsio->cdb[0] == READ_DEFECT_DATA_10) { 7011 data10 = (struct scsi_read_defect_data_hdr_10 *) 7012 ctsio->kern_data_ptr; 7013 data10->format = format; 7014 scsi_ulto2b(0, data10->length); 7015 } else { 7016 data12 = (struct scsi_read_defect_data_hdr_12 *) 7017 ctsio->kern_data_ptr; 7018 data12->format = format; 7019 scsi_ulto2b(0, data12->generation); 7020 scsi_ulto4b(0, data12->length); 7021 } 7022 7023 ctl_set_success(ctsio); 7024 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7025 ctsio->be_move_done = ctl_config_move_done; 7026 ctl_datamove((union ctl_io *)ctsio); 7027 return (CTL_RETVAL_COMPLETE); 7028} 7029 7030int 7031ctl_report_tagret_port_groups(struct ctl_scsiio *ctsio) 7032{ 7033 struct scsi_maintenance_in *cdb; 7034 int retval; 7035 int alloc_len, ext, total_len = 0, g, pc, pg, gs, os; 7036 int num_target_port_groups, num_target_ports; 7037 struct ctl_lun *lun; 7038 struct ctl_softc *softc; 7039 struct ctl_port *port; 7040 struct scsi_target_group_data *rtg_ptr; 7041 struct scsi_target_group_data_extended *rtg_ext_ptr; 7042 struct scsi_target_port_group_descriptor *tpg_desc; 7043 7044 CTL_DEBUG_PRINT(("ctl_report_tagret_port_groups\n")); 7045 7046 cdb = (struct scsi_maintenance_in *)ctsio->cdb; 7047 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7048 softc = lun->ctl_softc; 7049 7050 retval = CTL_RETVAL_COMPLETE; 7051 7052 switch (cdb->byte2 & STG_PDF_MASK) { 7053 case STG_PDF_LENGTH: 7054 ext = 0; 7055 break; 7056 case STG_PDF_EXTENDED: 7057 ext = 1; 7058 break; 7059 default: 7060 ctl_set_invalid_field(/*ctsio*/ ctsio, 7061 /*sks_valid*/ 1, 7062 /*command*/ 1, 7063 /*field*/ 2, 7064 /*bit_valid*/ 1, 7065 /*bit*/ 5); 7066 ctl_done((union ctl_io *)ctsio); 7067 return(retval); 7068 } 7069 7070 if (softc->is_single) 7071 num_target_port_groups = 1; 7072 else 7073 num_target_port_groups = NUM_TARGET_PORT_GROUPS; 7074 num_target_ports = 0; 7075 mtx_lock(&softc->ctl_lock); 7076 STAILQ_FOREACH(port, &softc->port_list, links) { 7077 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 7078 continue; 7079 if (ctl_lun_map_to_port(port, lun->lun) >= CTL_MAX_LUNS) 7080 continue; 7081 num_target_ports++; 7082 } 7083 mtx_unlock(&softc->ctl_lock); 7084 7085 if (ext) 7086 total_len = sizeof(struct scsi_target_group_data_extended); 7087 else 7088 total_len = sizeof(struct scsi_target_group_data); 7089 total_len += sizeof(struct scsi_target_port_group_descriptor) * 7090 num_target_port_groups + 7091 sizeof(struct scsi_target_port_descriptor) * num_target_ports; 7092 7093 alloc_len = scsi_4btoul(cdb->length); 7094 7095 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7096 7097 ctsio->kern_sg_entries = 0; 7098 7099 if (total_len < alloc_len) { 7100 ctsio->residual = alloc_len - total_len; 7101 ctsio->kern_data_len = total_len; 7102 ctsio->kern_total_len = total_len; 7103 } else { 7104 ctsio->residual = 0; 7105 ctsio->kern_data_len = alloc_len; 7106 ctsio->kern_total_len = alloc_len; 7107 } 7108 ctsio->kern_data_resid = 0; 7109 ctsio->kern_rel_offset = 0; 7110 7111 if (ext) { 7112 rtg_ext_ptr = (struct scsi_target_group_data_extended *) 7113 ctsio->kern_data_ptr; 7114 scsi_ulto4b(total_len - 4, rtg_ext_ptr->length); 7115 rtg_ext_ptr->format_type = 0x10; 7116 rtg_ext_ptr->implicit_transition_time = 0; 7117 tpg_desc = &rtg_ext_ptr->groups[0]; 7118 } else { 7119 rtg_ptr = (struct scsi_target_group_data *) 7120 ctsio->kern_data_ptr; 7121 scsi_ulto4b(total_len - 4, rtg_ptr->length); 7122 tpg_desc = &rtg_ptr->groups[0]; 7123 } 7124 7125 mtx_lock(&softc->ctl_lock); 7126 pg = softc->port_min / softc->port_cnt; 7127 if (softc->ha_link == CTL_HA_LINK_OFFLINE) 7128 gs = TPG_ASYMMETRIC_ACCESS_UNAVAILABLE; 7129 else if (softc->ha_link == CTL_HA_LINK_UNKNOWN) 7130 gs = TPG_ASYMMETRIC_ACCESS_TRANSITIONING; 7131 else if (softc->ha_mode == CTL_HA_MODE_ACT_STBY) 7132 gs = TPG_ASYMMETRIC_ACCESS_STANDBY; 7133 else 7134 gs = TPG_ASYMMETRIC_ACCESS_NONOPTIMIZED; 7135 if (lun->flags & CTL_LUN_PRIMARY_SC) { 7136 os = gs; 7137 gs = TPG_ASYMMETRIC_ACCESS_OPTIMIZED; 7138 } else 7139 os = TPG_ASYMMETRIC_ACCESS_OPTIMIZED; 7140 for (g = 0; g < num_target_port_groups; g++) { 7141 tpg_desc->pref_state = (g == pg) ? gs : os; 7142 tpg_desc->support = TPG_AO_SUP | TPG_AN_SUP | TPG_S_SUP | 7143 TPG_U_SUP | TPG_T_SUP; 7144 scsi_ulto2b(g + 1, tpg_desc->target_port_group); 7145 tpg_desc->status = TPG_IMPLICIT; 7146 pc = 0; 7147 STAILQ_FOREACH(port, &softc->port_list, links) { 7148 if (port->targ_port < g * softc->port_cnt || 7149 port->targ_port >= (g + 1) * softc->port_cnt) 7150 continue; 7151 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 7152 continue; 7153 if (ctl_lun_map_to_port(port, lun->lun) >= CTL_MAX_LUNS) 7154 continue; 7155 scsi_ulto2b(port->targ_port, tpg_desc->descriptors[pc]. 7156 relative_target_port_identifier); 7157 pc++; 7158 } 7159 tpg_desc->target_port_count = pc; 7160 tpg_desc = (struct scsi_target_port_group_descriptor *) 7161 &tpg_desc->descriptors[pc]; 7162 } 7163 mtx_unlock(&softc->ctl_lock); 7164 7165 ctl_set_success(ctsio); 7166 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7167 ctsio->be_move_done = ctl_config_move_done; 7168 ctl_datamove((union ctl_io *)ctsio); 7169 return(retval); 7170} 7171 7172int 7173ctl_report_supported_opcodes(struct ctl_scsiio *ctsio) 7174{ 7175 struct ctl_lun *lun; 7176 struct scsi_report_supported_opcodes *cdb; 7177 const struct ctl_cmd_entry *entry, *sentry; 7178 struct scsi_report_supported_opcodes_all *all; 7179 struct scsi_report_supported_opcodes_descr *descr; 7180 struct scsi_report_supported_opcodes_one *one; 7181 int retval; 7182 int alloc_len, total_len; 7183 int opcode, service_action, i, j, num; 7184 7185 CTL_DEBUG_PRINT(("ctl_report_supported_opcodes\n")); 7186 7187 cdb = (struct scsi_report_supported_opcodes *)ctsio->cdb; 7188 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7189 7190 retval = CTL_RETVAL_COMPLETE; 7191 7192 opcode = cdb->requested_opcode; 7193 service_action = scsi_2btoul(cdb->requested_service_action); 7194 switch (cdb->options & RSO_OPTIONS_MASK) { 7195 case RSO_OPTIONS_ALL: 7196 num = 0; 7197 for (i = 0; i < 256; i++) { 7198 entry = &ctl_cmd_table[i]; 7199 if (entry->flags & CTL_CMD_FLAG_SA5) { 7200 for (j = 0; j < 32; j++) { 7201 sentry = &((const struct ctl_cmd_entry *) 7202 entry->execute)[j]; 7203 if (ctl_cmd_applicable( 7204 lun->be_lun->lun_type, sentry)) 7205 num++; 7206 } 7207 } else { 7208 if (ctl_cmd_applicable(lun->be_lun->lun_type, 7209 entry)) 7210 num++; 7211 } 7212 } 7213 total_len = sizeof(struct scsi_report_supported_opcodes_all) + 7214 num * sizeof(struct scsi_report_supported_opcodes_descr); 7215 break; 7216 case RSO_OPTIONS_OC: 7217 if (ctl_cmd_table[opcode].flags & CTL_CMD_FLAG_SA5) { 7218 ctl_set_invalid_field(/*ctsio*/ ctsio, 7219 /*sks_valid*/ 1, 7220 /*command*/ 1, 7221 /*field*/ 2, 7222 /*bit_valid*/ 1, 7223 /*bit*/ 2); 7224 ctl_done((union ctl_io *)ctsio); 7225 return (CTL_RETVAL_COMPLETE); 7226 } 7227 total_len = sizeof(struct scsi_report_supported_opcodes_one) + 32; 7228 break; 7229 case RSO_OPTIONS_OC_SA: 7230 if ((ctl_cmd_table[opcode].flags & CTL_CMD_FLAG_SA5) == 0 || 7231 service_action >= 32) { 7232 ctl_set_invalid_field(/*ctsio*/ ctsio, 7233 /*sks_valid*/ 1, 7234 /*command*/ 1, 7235 /*field*/ 2, 7236 /*bit_valid*/ 1, 7237 /*bit*/ 2); 7238 ctl_done((union ctl_io *)ctsio); 7239 return (CTL_RETVAL_COMPLETE); 7240 } 7241 total_len = sizeof(struct scsi_report_supported_opcodes_one) + 32; 7242 break; 7243 default: 7244 ctl_set_invalid_field(/*ctsio*/ ctsio, 7245 /*sks_valid*/ 1, 7246 /*command*/ 1, 7247 /*field*/ 2, 7248 /*bit_valid*/ 1, 7249 /*bit*/ 2); 7250 ctl_done((union ctl_io *)ctsio); 7251 return (CTL_RETVAL_COMPLETE); 7252 } 7253 7254 alloc_len = scsi_4btoul(cdb->length); 7255 7256 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7257 7258 ctsio->kern_sg_entries = 0; 7259 7260 if (total_len < alloc_len) { 7261 ctsio->residual = alloc_len - total_len; 7262 ctsio->kern_data_len = total_len; 7263 ctsio->kern_total_len = total_len; 7264 } else { 7265 ctsio->residual = 0; 7266 ctsio->kern_data_len = alloc_len; 7267 ctsio->kern_total_len = alloc_len; 7268 } 7269 ctsio->kern_data_resid = 0; 7270 ctsio->kern_rel_offset = 0; 7271 7272 switch (cdb->options & RSO_OPTIONS_MASK) { 7273 case RSO_OPTIONS_ALL: 7274 all = (struct scsi_report_supported_opcodes_all *) 7275 ctsio->kern_data_ptr; 7276 num = 0; 7277 for (i = 0; i < 256; i++) { 7278 entry = &ctl_cmd_table[i]; 7279 if (entry->flags & CTL_CMD_FLAG_SA5) { 7280 for (j = 0; j < 32; j++) { 7281 sentry = &((const struct ctl_cmd_entry *) 7282 entry->execute)[j]; 7283 if (!ctl_cmd_applicable( 7284 lun->be_lun->lun_type, sentry)) 7285 continue; 7286 descr = &all->descr[num++]; 7287 descr->opcode = i; 7288 scsi_ulto2b(j, descr->service_action); 7289 descr->flags = RSO_SERVACTV; 7290 scsi_ulto2b(sentry->length, 7291 descr->cdb_length); 7292 } 7293 } else { 7294 if (!ctl_cmd_applicable(lun->be_lun->lun_type, 7295 entry)) 7296 continue; 7297 descr = &all->descr[num++]; 7298 descr->opcode = i; 7299 scsi_ulto2b(0, descr->service_action); 7300 descr->flags = 0; 7301 scsi_ulto2b(entry->length, descr->cdb_length); 7302 } 7303 } 7304 scsi_ulto4b( 7305 num * sizeof(struct scsi_report_supported_opcodes_descr), 7306 all->length); 7307 break; 7308 case RSO_OPTIONS_OC: 7309 one = (struct scsi_report_supported_opcodes_one *) 7310 ctsio->kern_data_ptr; 7311 entry = &ctl_cmd_table[opcode]; 7312 goto fill_one; 7313 case RSO_OPTIONS_OC_SA: 7314 one = (struct scsi_report_supported_opcodes_one *) 7315 ctsio->kern_data_ptr; 7316 entry = &ctl_cmd_table[opcode]; 7317 entry = &((const struct ctl_cmd_entry *) 7318 entry->execute)[service_action]; 7319fill_one: 7320 if (ctl_cmd_applicable(lun->be_lun->lun_type, entry)) { 7321 one->support = 3; 7322 scsi_ulto2b(entry->length, one->cdb_length); 7323 one->cdb_usage[0] = opcode; 7324 memcpy(&one->cdb_usage[1], entry->usage, 7325 entry->length - 1); 7326 } else 7327 one->support = 1; 7328 break; 7329 } 7330 7331 ctl_set_success(ctsio); 7332 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7333 ctsio->be_move_done = ctl_config_move_done; 7334 ctl_datamove((union ctl_io *)ctsio); 7335 return(retval); 7336} 7337 7338int 7339ctl_report_supported_tmf(struct ctl_scsiio *ctsio) 7340{ 7341 struct scsi_report_supported_tmf *cdb; 7342 struct scsi_report_supported_tmf_data *data; 7343 int retval; 7344 int alloc_len, total_len; 7345 7346 CTL_DEBUG_PRINT(("ctl_report_supported_tmf\n")); 7347 7348 cdb = (struct scsi_report_supported_tmf *)ctsio->cdb; 7349 7350 retval = CTL_RETVAL_COMPLETE; 7351 7352 total_len = sizeof(struct scsi_report_supported_tmf_data); 7353 alloc_len = scsi_4btoul(cdb->length); 7354 7355 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7356 7357 ctsio->kern_sg_entries = 0; 7358 7359 if (total_len < alloc_len) { 7360 ctsio->residual = alloc_len - total_len; 7361 ctsio->kern_data_len = total_len; 7362 ctsio->kern_total_len = total_len; 7363 } else { 7364 ctsio->residual = 0; 7365 ctsio->kern_data_len = alloc_len; 7366 ctsio->kern_total_len = alloc_len; 7367 } 7368 ctsio->kern_data_resid = 0; 7369 ctsio->kern_rel_offset = 0; 7370 7371 data = (struct scsi_report_supported_tmf_data *)ctsio->kern_data_ptr; 7372 data->byte1 |= RST_ATS | RST_ATSS | RST_CTSS | RST_LURS | RST_QTS | 7373 RST_TRS; 7374 data->byte2 |= RST_QAES | RST_QTSS | RST_ITNRS; 7375 7376 ctl_set_success(ctsio); 7377 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7378 ctsio->be_move_done = ctl_config_move_done; 7379 ctl_datamove((union ctl_io *)ctsio); 7380 return (retval); 7381} 7382 7383int 7384ctl_report_timestamp(struct ctl_scsiio *ctsio) 7385{ 7386 struct scsi_report_timestamp *cdb; 7387 struct scsi_report_timestamp_data *data; 7388 struct timeval tv; 7389 int64_t timestamp; 7390 int retval; 7391 int alloc_len, total_len; 7392 7393 CTL_DEBUG_PRINT(("ctl_report_timestamp\n")); 7394 7395 cdb = (struct scsi_report_timestamp *)ctsio->cdb; 7396 7397 retval = CTL_RETVAL_COMPLETE; 7398 7399 total_len = sizeof(struct scsi_report_timestamp_data); 7400 alloc_len = scsi_4btoul(cdb->length); 7401 7402 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7403 7404 ctsio->kern_sg_entries = 0; 7405 7406 if (total_len < alloc_len) { 7407 ctsio->residual = alloc_len - total_len; 7408 ctsio->kern_data_len = total_len; 7409 ctsio->kern_total_len = total_len; 7410 } else { 7411 ctsio->residual = 0; 7412 ctsio->kern_data_len = alloc_len; 7413 ctsio->kern_total_len = alloc_len; 7414 } 7415 ctsio->kern_data_resid = 0; 7416 ctsio->kern_rel_offset = 0; 7417 7418 data = (struct scsi_report_timestamp_data *)ctsio->kern_data_ptr; 7419 scsi_ulto2b(sizeof(*data) - 2, data->length); 7420 data->origin = RTS_ORIG_OUTSIDE; 7421 getmicrotime(&tv); 7422 timestamp = (int64_t)tv.tv_sec * 1000 + tv.tv_usec / 1000; 7423 scsi_ulto4b(timestamp >> 16, data->timestamp); 7424 scsi_ulto2b(timestamp & 0xffff, &data->timestamp[4]); 7425 7426 ctl_set_success(ctsio); 7427 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7428 ctsio->be_move_done = ctl_config_move_done; 7429 ctl_datamove((union ctl_io *)ctsio); 7430 return (retval); 7431} 7432 7433int 7434ctl_persistent_reserve_in(struct ctl_scsiio *ctsio) 7435{ 7436 struct scsi_per_res_in *cdb; 7437 int alloc_len, total_len = 0; 7438 /* struct scsi_per_res_in_rsrv in_data; */ 7439 struct ctl_lun *lun; 7440 struct ctl_softc *softc; 7441 uint64_t key; 7442 7443 CTL_DEBUG_PRINT(("ctl_persistent_reserve_in\n")); 7444 7445 cdb = (struct scsi_per_res_in *)ctsio->cdb; 7446 7447 alloc_len = scsi_2btoul(cdb->length); 7448 7449 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7450 softc = lun->ctl_softc; 7451 7452retry: 7453 mtx_lock(&lun->lun_lock); 7454 switch (cdb->action) { 7455 case SPRI_RK: /* read keys */ 7456 total_len = sizeof(struct scsi_per_res_in_keys) + 7457 lun->pr_key_count * 7458 sizeof(struct scsi_per_res_key); 7459 break; 7460 case SPRI_RR: /* read reservation */ 7461 if (lun->flags & CTL_LUN_PR_RESERVED) 7462 total_len = sizeof(struct scsi_per_res_in_rsrv); 7463 else 7464 total_len = sizeof(struct scsi_per_res_in_header); 7465 break; 7466 case SPRI_RC: /* report capabilities */ 7467 total_len = sizeof(struct scsi_per_res_cap); 7468 break; 7469 case SPRI_RS: /* read full status */ 7470 total_len = sizeof(struct scsi_per_res_in_header) + 7471 (sizeof(struct scsi_per_res_in_full_desc) + 256) * 7472 lun->pr_key_count; 7473 break; 7474 default: 7475 panic("Invalid PR type %x", cdb->action); 7476 } 7477 mtx_unlock(&lun->lun_lock); 7478 7479 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7480 7481 if (total_len < alloc_len) { 7482 ctsio->residual = alloc_len - total_len; 7483 ctsio->kern_data_len = total_len; 7484 ctsio->kern_total_len = total_len; 7485 } else { 7486 ctsio->residual = 0; 7487 ctsio->kern_data_len = alloc_len; 7488 ctsio->kern_total_len = alloc_len; 7489 } 7490 7491 ctsio->kern_data_resid = 0; 7492 ctsio->kern_rel_offset = 0; 7493 ctsio->kern_sg_entries = 0; 7494 7495 mtx_lock(&lun->lun_lock); 7496 switch (cdb->action) { 7497 case SPRI_RK: { // read keys 7498 struct scsi_per_res_in_keys *res_keys; 7499 int i, key_count; 7500 7501 res_keys = (struct scsi_per_res_in_keys*)ctsio->kern_data_ptr; 7502 7503 /* 7504 * We had to drop the lock to allocate our buffer, which 7505 * leaves time for someone to come in with another 7506 * persistent reservation. (That is unlikely, though, 7507 * since this should be the only persistent reservation 7508 * command active right now.) 7509 */ 7510 if (total_len != (sizeof(struct scsi_per_res_in_keys) + 7511 (lun->pr_key_count * 7512 sizeof(struct scsi_per_res_key)))){ 7513 mtx_unlock(&lun->lun_lock); 7514 free(ctsio->kern_data_ptr, M_CTL); 7515 printf("%s: reservation length changed, retrying\n", 7516 __func__); 7517 goto retry; 7518 } 7519 7520 scsi_ulto4b(lun->PRGeneration, res_keys->header.generation); 7521 7522 scsi_ulto4b(sizeof(struct scsi_per_res_key) * 7523 lun->pr_key_count, res_keys->header.length); 7524 7525 for (i = 0, key_count = 0; i < CTL_MAX_INITIATORS; i++) { 7526 if ((key = ctl_get_prkey(lun, i)) == 0) 7527 continue; 7528 7529 /* 7530 * We used lun->pr_key_count to calculate the 7531 * size to allocate. If it turns out the number of 7532 * initiators with the registered flag set is 7533 * larger than that (i.e. they haven't been kept in 7534 * sync), we've got a problem. 7535 */ 7536 if (key_count >= lun->pr_key_count) { 7537#ifdef NEEDTOPORT 7538 csevent_log(CSC_CTL | CSC_SHELF_SW | 7539 CTL_PR_ERROR, 7540 csevent_LogType_Fault, 7541 csevent_AlertLevel_Yellow, 7542 csevent_FRU_ShelfController, 7543 csevent_FRU_Firmware, 7544 csevent_FRU_Unknown, 7545 "registered keys %d >= key " 7546 "count %d", key_count, 7547 lun->pr_key_count); 7548#endif 7549 key_count++; 7550 continue; 7551 } 7552 scsi_u64to8b(key, res_keys->keys[key_count].key); 7553 key_count++; 7554 } 7555 break; 7556 } 7557 case SPRI_RR: { // read reservation 7558 struct scsi_per_res_in_rsrv *res; 7559 int tmp_len, header_only; 7560 7561 res = (struct scsi_per_res_in_rsrv *)ctsio->kern_data_ptr; 7562 7563 scsi_ulto4b(lun->PRGeneration, res->header.generation); 7564 7565 if (lun->flags & CTL_LUN_PR_RESERVED) 7566 { 7567 tmp_len = sizeof(struct scsi_per_res_in_rsrv); 7568 scsi_ulto4b(sizeof(struct scsi_per_res_in_rsrv_data), 7569 res->header.length); 7570 header_only = 0; 7571 } else { 7572 tmp_len = sizeof(struct scsi_per_res_in_header); 7573 scsi_ulto4b(0, res->header.length); 7574 header_only = 1; 7575 } 7576 7577 /* 7578 * We had to drop the lock to allocate our buffer, which 7579 * leaves time for someone to come in with another 7580 * persistent reservation. (That is unlikely, though, 7581 * since this should be the only persistent reservation 7582 * command active right now.) 7583 */ 7584 if (tmp_len != total_len) { 7585 mtx_unlock(&lun->lun_lock); 7586 free(ctsio->kern_data_ptr, M_CTL); 7587 printf("%s: reservation status changed, retrying\n", 7588 __func__); 7589 goto retry; 7590 } 7591 7592 /* 7593 * No reservation held, so we're done. 7594 */ 7595 if (header_only != 0) 7596 break; 7597 7598 /* 7599 * If the registration is an All Registrants type, the key 7600 * is 0, since it doesn't really matter. 7601 */ 7602 if (lun->pr_res_idx != CTL_PR_ALL_REGISTRANTS) { 7603 scsi_u64to8b(ctl_get_prkey(lun, lun->pr_res_idx), 7604 res->data.reservation); 7605 } 7606 res->data.scopetype = lun->res_type; 7607 break; 7608 } 7609 case SPRI_RC: //report capabilities 7610 { 7611 struct scsi_per_res_cap *res_cap; 7612 uint16_t type_mask; 7613 7614 res_cap = (struct scsi_per_res_cap *)ctsio->kern_data_ptr; 7615 scsi_ulto2b(sizeof(*res_cap), res_cap->length); 7616 res_cap->flags2 |= SPRI_TMV | SPRI_ALLOW_5; 7617 type_mask = SPRI_TM_WR_EX_AR | 7618 SPRI_TM_EX_AC_RO | 7619 SPRI_TM_WR_EX_RO | 7620 SPRI_TM_EX_AC | 7621 SPRI_TM_WR_EX | 7622 SPRI_TM_EX_AC_AR; 7623 scsi_ulto2b(type_mask, res_cap->type_mask); 7624 break; 7625 } 7626 case SPRI_RS: { // read full status 7627 struct scsi_per_res_in_full *res_status; 7628 struct scsi_per_res_in_full_desc *res_desc; 7629 struct ctl_port *port; 7630 int i, len; 7631 7632 res_status = (struct scsi_per_res_in_full*)ctsio->kern_data_ptr; 7633 7634 /* 7635 * We had to drop the lock to allocate our buffer, which 7636 * leaves time for someone to come in with another 7637 * persistent reservation. (That is unlikely, though, 7638 * since this should be the only persistent reservation 7639 * command active right now.) 7640 */ 7641 if (total_len < (sizeof(struct scsi_per_res_in_header) + 7642 (sizeof(struct scsi_per_res_in_full_desc) + 256) * 7643 lun->pr_key_count)){ 7644 mtx_unlock(&lun->lun_lock); 7645 free(ctsio->kern_data_ptr, M_CTL); 7646 printf("%s: reservation length changed, retrying\n", 7647 __func__); 7648 goto retry; 7649 } 7650 7651 scsi_ulto4b(lun->PRGeneration, res_status->header.generation); 7652 7653 res_desc = &res_status->desc[0]; 7654 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 7655 if ((key = ctl_get_prkey(lun, i)) == 0) 7656 continue; 7657 7658 scsi_u64to8b(key, res_desc->res_key.key); 7659 if ((lun->flags & CTL_LUN_PR_RESERVED) && 7660 (lun->pr_res_idx == i || 7661 lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS)) { 7662 res_desc->flags = SPRI_FULL_R_HOLDER; 7663 res_desc->scopetype = lun->res_type; 7664 } 7665 scsi_ulto2b(i / CTL_MAX_INIT_PER_PORT, 7666 res_desc->rel_trgt_port_id); 7667 len = 0; 7668 port = softc->ctl_ports[i / CTL_MAX_INIT_PER_PORT]; 7669 if (port != NULL) 7670 len = ctl_create_iid(port, 7671 i % CTL_MAX_INIT_PER_PORT, 7672 res_desc->transport_id); 7673 scsi_ulto4b(len, res_desc->additional_length); 7674 res_desc = (struct scsi_per_res_in_full_desc *) 7675 &res_desc->transport_id[len]; 7676 } 7677 scsi_ulto4b((uint8_t *)res_desc - (uint8_t *)&res_status->desc[0], 7678 res_status->header.length); 7679 break; 7680 } 7681 default: 7682 /* 7683 * This is a bug, because we just checked for this above, 7684 * and should have returned an error. 7685 */ 7686 panic("Invalid PR type %x", cdb->action); 7687 break; /* NOTREACHED */ 7688 } 7689 mtx_unlock(&lun->lun_lock); 7690 7691 ctl_set_success(ctsio); 7692 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7693 ctsio->be_move_done = ctl_config_move_done; 7694 ctl_datamove((union ctl_io *)ctsio); 7695 return (CTL_RETVAL_COMPLETE); 7696} 7697 7698/* 7699 * Returns 0 if ctl_persistent_reserve_out() should continue, non-zero if 7700 * it should return. 7701 */ 7702static int 7703ctl_pro_preempt(struct ctl_softc *softc, struct ctl_lun *lun, uint64_t res_key, 7704 uint64_t sa_res_key, uint8_t type, uint32_t residx, 7705 struct ctl_scsiio *ctsio, struct scsi_per_res_out *cdb, 7706 struct scsi_per_res_out_parms* param) 7707{ 7708 union ctl_ha_msg persis_io; 7709 int i; 7710 7711 mtx_lock(&lun->lun_lock); 7712 if (sa_res_key == 0) { 7713 if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS) { 7714 /* validate scope and type */ 7715 if ((cdb->scope_type & SPR_SCOPE_MASK) != 7716 SPR_LU_SCOPE) { 7717 mtx_unlock(&lun->lun_lock); 7718 ctl_set_invalid_field(/*ctsio*/ ctsio, 7719 /*sks_valid*/ 1, 7720 /*command*/ 1, 7721 /*field*/ 2, 7722 /*bit_valid*/ 1, 7723 /*bit*/ 4); 7724 ctl_done((union ctl_io *)ctsio); 7725 return (1); 7726 } 7727 7728 if (type>8 || type==2 || type==4 || type==0) { 7729 mtx_unlock(&lun->lun_lock); 7730 ctl_set_invalid_field(/*ctsio*/ ctsio, 7731 /*sks_valid*/ 1, 7732 /*command*/ 1, 7733 /*field*/ 2, 7734 /*bit_valid*/ 1, 7735 /*bit*/ 0); 7736 ctl_done((union ctl_io *)ctsio); 7737 return (1); 7738 } 7739 7740 /* 7741 * Unregister everybody else and build UA for 7742 * them 7743 */ 7744 for(i = 0; i < CTL_MAX_INITIATORS; i++) { 7745 if (i == residx || ctl_get_prkey(lun, i) == 0) 7746 continue; 7747 7748 ctl_clr_prkey(lun, i); 7749 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 7750 } 7751 lun->pr_key_count = 1; 7752 lun->res_type = type; 7753 if (lun->res_type != SPR_TYPE_WR_EX_AR 7754 && lun->res_type != SPR_TYPE_EX_AC_AR) 7755 lun->pr_res_idx = residx; 7756 lun->PRGeneration++; 7757 mtx_unlock(&lun->lun_lock); 7758 7759 /* send msg to other side */ 7760 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 7761 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 7762 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 7763 persis_io.pr.pr_info.residx = lun->pr_res_idx; 7764 persis_io.pr.pr_info.res_type = type; 7765 memcpy(persis_io.pr.pr_info.sa_res_key, 7766 param->serv_act_res_key, 7767 sizeof(param->serv_act_res_key)); 7768 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 7769 sizeof(persis_io.pr), M_WAITOK); 7770 } else { 7771 /* not all registrants */ 7772 mtx_unlock(&lun->lun_lock); 7773 free(ctsio->kern_data_ptr, M_CTL); 7774 ctl_set_invalid_field(ctsio, 7775 /*sks_valid*/ 1, 7776 /*command*/ 0, 7777 /*field*/ 8, 7778 /*bit_valid*/ 0, 7779 /*bit*/ 0); 7780 ctl_done((union ctl_io *)ctsio); 7781 return (1); 7782 } 7783 } else if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS 7784 || !(lun->flags & CTL_LUN_PR_RESERVED)) { 7785 int found = 0; 7786 7787 if (res_key == sa_res_key) { 7788 /* special case */ 7789 /* 7790 * The spec implies this is not good but doesn't 7791 * say what to do. There are two choices either 7792 * generate a res conflict or check condition 7793 * with illegal field in parameter data. Since 7794 * that is what is done when the sa_res_key is 7795 * zero I'll take that approach since this has 7796 * to do with the sa_res_key. 7797 */ 7798 mtx_unlock(&lun->lun_lock); 7799 free(ctsio->kern_data_ptr, M_CTL); 7800 ctl_set_invalid_field(ctsio, 7801 /*sks_valid*/ 1, 7802 /*command*/ 0, 7803 /*field*/ 8, 7804 /*bit_valid*/ 0, 7805 /*bit*/ 0); 7806 ctl_done((union ctl_io *)ctsio); 7807 return (1); 7808 } 7809 7810 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 7811 if (ctl_get_prkey(lun, i) != sa_res_key) 7812 continue; 7813 7814 found = 1; 7815 ctl_clr_prkey(lun, i); 7816 lun->pr_key_count--; 7817 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 7818 } 7819 if (!found) { 7820 mtx_unlock(&lun->lun_lock); 7821 free(ctsio->kern_data_ptr, M_CTL); 7822 ctl_set_reservation_conflict(ctsio); 7823 ctl_done((union ctl_io *)ctsio); 7824 return (CTL_RETVAL_COMPLETE); 7825 } 7826 lun->PRGeneration++; 7827 mtx_unlock(&lun->lun_lock); 7828 7829 /* send msg to other side */ 7830 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 7831 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 7832 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 7833 persis_io.pr.pr_info.residx = lun->pr_res_idx; 7834 persis_io.pr.pr_info.res_type = type; 7835 memcpy(persis_io.pr.pr_info.sa_res_key, 7836 param->serv_act_res_key, 7837 sizeof(param->serv_act_res_key)); 7838 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 7839 sizeof(persis_io.pr), M_WAITOK); 7840 } else { 7841 /* Reserved but not all registrants */ 7842 /* sa_res_key is res holder */ 7843 if (sa_res_key == ctl_get_prkey(lun, lun->pr_res_idx)) { 7844 /* validate scope and type */ 7845 if ((cdb->scope_type & SPR_SCOPE_MASK) != 7846 SPR_LU_SCOPE) { 7847 mtx_unlock(&lun->lun_lock); 7848 ctl_set_invalid_field(/*ctsio*/ ctsio, 7849 /*sks_valid*/ 1, 7850 /*command*/ 1, 7851 /*field*/ 2, 7852 /*bit_valid*/ 1, 7853 /*bit*/ 4); 7854 ctl_done((union ctl_io *)ctsio); 7855 return (1); 7856 } 7857 7858 if (type>8 || type==2 || type==4 || type==0) { 7859 mtx_unlock(&lun->lun_lock); 7860 ctl_set_invalid_field(/*ctsio*/ ctsio, 7861 /*sks_valid*/ 1, 7862 /*command*/ 1, 7863 /*field*/ 2, 7864 /*bit_valid*/ 1, 7865 /*bit*/ 0); 7866 ctl_done((union ctl_io *)ctsio); 7867 return (1); 7868 } 7869 7870 /* 7871 * Do the following: 7872 * if sa_res_key != res_key remove all 7873 * registrants w/sa_res_key and generate UA 7874 * for these registrants(Registrations 7875 * Preempted) if it wasn't an exclusive 7876 * reservation generate UA(Reservations 7877 * Preempted) for all other registered nexuses 7878 * if the type has changed. Establish the new 7879 * reservation and holder. If res_key and 7880 * sa_res_key are the same do the above 7881 * except don't unregister the res holder. 7882 */ 7883 7884 for(i = 0; i < CTL_MAX_INITIATORS; i++) { 7885 if (i == residx || ctl_get_prkey(lun, i) == 0) 7886 continue; 7887 7888 if (sa_res_key == ctl_get_prkey(lun, i)) { 7889 ctl_clr_prkey(lun, i); 7890 lun->pr_key_count--; 7891 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 7892 } else if (type != lun->res_type 7893 && (lun->res_type == SPR_TYPE_WR_EX_RO 7894 || lun->res_type ==SPR_TYPE_EX_AC_RO)){ 7895 ctl_est_ua(lun, i, CTL_UA_RES_RELEASE); 7896 } 7897 } 7898 lun->res_type = type; 7899 if (lun->res_type != SPR_TYPE_WR_EX_AR 7900 && lun->res_type != SPR_TYPE_EX_AC_AR) 7901 lun->pr_res_idx = residx; 7902 else 7903 lun->pr_res_idx = CTL_PR_ALL_REGISTRANTS; 7904 lun->PRGeneration++; 7905 mtx_unlock(&lun->lun_lock); 7906 7907 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 7908 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 7909 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 7910 persis_io.pr.pr_info.residx = lun->pr_res_idx; 7911 persis_io.pr.pr_info.res_type = type; 7912 memcpy(persis_io.pr.pr_info.sa_res_key, 7913 param->serv_act_res_key, 7914 sizeof(param->serv_act_res_key)); 7915 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 7916 sizeof(persis_io.pr), M_WAITOK); 7917 } else { 7918 /* 7919 * sa_res_key is not the res holder just 7920 * remove registrants 7921 */ 7922 int found=0; 7923 7924 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 7925 if (sa_res_key != ctl_get_prkey(lun, i)) 7926 continue; 7927 7928 found = 1; 7929 ctl_clr_prkey(lun, i); 7930 lun->pr_key_count--; 7931 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 7932 } 7933 7934 if (!found) { 7935 mtx_unlock(&lun->lun_lock); 7936 free(ctsio->kern_data_ptr, M_CTL); 7937 ctl_set_reservation_conflict(ctsio); 7938 ctl_done((union ctl_io *)ctsio); 7939 return (1); 7940 } 7941 lun->PRGeneration++; 7942 mtx_unlock(&lun->lun_lock); 7943 7944 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 7945 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 7946 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 7947 persis_io.pr.pr_info.residx = lun->pr_res_idx; 7948 persis_io.pr.pr_info.res_type = type; 7949 memcpy(persis_io.pr.pr_info.sa_res_key, 7950 param->serv_act_res_key, 7951 sizeof(param->serv_act_res_key)); 7952 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 7953 sizeof(persis_io.pr), M_WAITOK); 7954 } 7955 } 7956 return (0); 7957} 7958 7959static void 7960ctl_pro_preempt_other(struct ctl_lun *lun, union ctl_ha_msg *msg) 7961{ 7962 uint64_t sa_res_key; 7963 int i; 7964 7965 sa_res_key = scsi_8btou64(msg->pr.pr_info.sa_res_key); 7966 7967 if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS 7968 || lun->pr_res_idx == CTL_PR_NO_RESERVATION 7969 || sa_res_key != ctl_get_prkey(lun, lun->pr_res_idx)) { 7970 if (sa_res_key == 0) { 7971 /* 7972 * Unregister everybody else and build UA for 7973 * them 7974 */ 7975 for(i = 0; i < CTL_MAX_INITIATORS; i++) { 7976 if (i == msg->pr.pr_info.residx || 7977 ctl_get_prkey(lun, i) == 0) 7978 continue; 7979 7980 ctl_clr_prkey(lun, i); 7981 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 7982 } 7983 7984 lun->pr_key_count = 1; 7985 lun->res_type = msg->pr.pr_info.res_type; 7986 if (lun->res_type != SPR_TYPE_WR_EX_AR 7987 && lun->res_type != SPR_TYPE_EX_AC_AR) 7988 lun->pr_res_idx = msg->pr.pr_info.residx; 7989 } else { 7990 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 7991 if (sa_res_key == ctl_get_prkey(lun, i)) 7992 continue; 7993 7994 ctl_clr_prkey(lun, i); 7995 lun->pr_key_count--; 7996 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 7997 } 7998 } 7999 } else { 8000 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 8001 if (i == msg->pr.pr_info.residx || 8002 ctl_get_prkey(lun, i) == 0) 8003 continue; 8004 8005 if (sa_res_key == ctl_get_prkey(lun, i)) { 8006 ctl_clr_prkey(lun, i); 8007 lun->pr_key_count--; 8008 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 8009 } else if (msg->pr.pr_info.res_type != lun->res_type 8010 && (lun->res_type == SPR_TYPE_WR_EX_RO 8011 || lun->res_type == SPR_TYPE_EX_AC_RO)) { 8012 ctl_est_ua(lun, i, CTL_UA_RES_RELEASE); 8013 } 8014 } 8015 lun->res_type = msg->pr.pr_info.res_type; 8016 if (lun->res_type != SPR_TYPE_WR_EX_AR 8017 && lun->res_type != SPR_TYPE_EX_AC_AR) 8018 lun->pr_res_idx = msg->pr.pr_info.residx; 8019 else 8020 lun->pr_res_idx = CTL_PR_ALL_REGISTRANTS; 8021 } 8022 lun->PRGeneration++; 8023 8024} 8025 8026 8027int 8028ctl_persistent_reserve_out(struct ctl_scsiio *ctsio) 8029{ 8030 int retval; 8031 u_int32_t param_len; 8032 struct scsi_per_res_out *cdb; 8033 struct ctl_lun *lun; 8034 struct scsi_per_res_out_parms* param; 8035 struct ctl_softc *softc; 8036 uint32_t residx; 8037 uint64_t res_key, sa_res_key, key; 8038 uint8_t type; 8039 union ctl_ha_msg persis_io; 8040 int i; 8041 8042 CTL_DEBUG_PRINT(("ctl_persistent_reserve_out\n")); 8043 8044 retval = CTL_RETVAL_COMPLETE; 8045 8046 cdb = (struct scsi_per_res_out *)ctsio->cdb; 8047 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 8048 softc = lun->ctl_softc; 8049 8050 /* 8051 * We only support whole-LUN scope. The scope & type are ignored for 8052 * register, register and ignore existing key and clear. 8053 * We sometimes ignore scope and type on preempts too!! 8054 * Verify reservation type here as well. 8055 */ 8056 type = cdb->scope_type & SPR_TYPE_MASK; 8057 if ((cdb->action == SPRO_RESERVE) 8058 || (cdb->action == SPRO_RELEASE)) { 8059 if ((cdb->scope_type & SPR_SCOPE_MASK) != SPR_LU_SCOPE) { 8060 ctl_set_invalid_field(/*ctsio*/ ctsio, 8061 /*sks_valid*/ 1, 8062 /*command*/ 1, 8063 /*field*/ 2, 8064 /*bit_valid*/ 1, 8065 /*bit*/ 4); 8066 ctl_done((union ctl_io *)ctsio); 8067 return (CTL_RETVAL_COMPLETE); 8068 } 8069 8070 if (type>8 || type==2 || type==4 || type==0) { 8071 ctl_set_invalid_field(/*ctsio*/ ctsio, 8072 /*sks_valid*/ 1, 8073 /*command*/ 1, 8074 /*field*/ 2, 8075 /*bit_valid*/ 1, 8076 /*bit*/ 0); 8077 ctl_done((union ctl_io *)ctsio); 8078 return (CTL_RETVAL_COMPLETE); 8079 } 8080 } 8081 8082 param_len = scsi_4btoul(cdb->length); 8083 8084 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 8085 ctsio->kern_data_ptr = malloc(param_len, M_CTL, M_WAITOK); 8086 ctsio->kern_data_len = param_len; 8087 ctsio->kern_total_len = param_len; 8088 ctsio->kern_data_resid = 0; 8089 ctsio->kern_rel_offset = 0; 8090 ctsio->kern_sg_entries = 0; 8091 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 8092 ctsio->be_move_done = ctl_config_move_done; 8093 ctl_datamove((union ctl_io *)ctsio); 8094 8095 return (CTL_RETVAL_COMPLETE); 8096 } 8097 8098 param = (struct scsi_per_res_out_parms *)ctsio->kern_data_ptr; 8099 8100 residx = ctl_get_initindex(&ctsio->io_hdr.nexus); 8101 res_key = scsi_8btou64(param->res_key.key); 8102 sa_res_key = scsi_8btou64(param->serv_act_res_key); 8103 8104 /* 8105 * Validate the reservation key here except for SPRO_REG_IGNO 8106 * This must be done for all other service actions 8107 */ 8108 if ((cdb->action & SPRO_ACTION_MASK) != SPRO_REG_IGNO) { 8109 mtx_lock(&lun->lun_lock); 8110 if ((key = ctl_get_prkey(lun, residx)) != 0) { 8111 if (res_key != key) { 8112 /* 8113 * The current key passed in doesn't match 8114 * the one the initiator previously 8115 * registered. 8116 */ 8117 mtx_unlock(&lun->lun_lock); 8118 free(ctsio->kern_data_ptr, M_CTL); 8119 ctl_set_reservation_conflict(ctsio); 8120 ctl_done((union ctl_io *)ctsio); 8121 return (CTL_RETVAL_COMPLETE); 8122 } 8123 } else if ((cdb->action & SPRO_ACTION_MASK) != SPRO_REGISTER) { 8124 /* 8125 * We are not registered 8126 */ 8127 mtx_unlock(&lun->lun_lock); 8128 free(ctsio->kern_data_ptr, M_CTL); 8129 ctl_set_reservation_conflict(ctsio); 8130 ctl_done((union ctl_io *)ctsio); 8131 return (CTL_RETVAL_COMPLETE); 8132 } else if (res_key != 0) { 8133 /* 8134 * We are not registered and trying to register but 8135 * the register key isn't zero. 8136 */ 8137 mtx_unlock(&lun->lun_lock); 8138 free(ctsio->kern_data_ptr, M_CTL); 8139 ctl_set_reservation_conflict(ctsio); 8140 ctl_done((union ctl_io *)ctsio); 8141 return (CTL_RETVAL_COMPLETE); 8142 } 8143 mtx_unlock(&lun->lun_lock); 8144 } 8145 8146 switch (cdb->action & SPRO_ACTION_MASK) { 8147 case SPRO_REGISTER: 8148 case SPRO_REG_IGNO: { 8149 8150#if 0 8151 printf("Registration received\n"); 8152#endif 8153 8154 /* 8155 * We don't support any of these options, as we report in 8156 * the read capabilities request (see 8157 * ctl_persistent_reserve_in(), above). 8158 */ 8159 if ((param->flags & SPR_SPEC_I_PT) 8160 || (param->flags & SPR_ALL_TG_PT) 8161 || (param->flags & SPR_APTPL)) { 8162 int bit_ptr; 8163 8164 if (param->flags & SPR_APTPL) 8165 bit_ptr = 0; 8166 else if (param->flags & SPR_ALL_TG_PT) 8167 bit_ptr = 2; 8168 else /* SPR_SPEC_I_PT */ 8169 bit_ptr = 3; 8170 8171 free(ctsio->kern_data_ptr, M_CTL); 8172 ctl_set_invalid_field(ctsio, 8173 /*sks_valid*/ 1, 8174 /*command*/ 0, 8175 /*field*/ 20, 8176 /*bit_valid*/ 1, 8177 /*bit*/ bit_ptr); 8178 ctl_done((union ctl_io *)ctsio); 8179 return (CTL_RETVAL_COMPLETE); 8180 } 8181 8182 mtx_lock(&lun->lun_lock); 8183 8184 /* 8185 * The initiator wants to clear the 8186 * key/unregister. 8187 */ 8188 if (sa_res_key == 0) { 8189 if ((res_key == 0 8190 && (cdb->action & SPRO_ACTION_MASK) == SPRO_REGISTER) 8191 || ((cdb->action & SPRO_ACTION_MASK) == SPRO_REG_IGNO 8192 && ctl_get_prkey(lun, residx) == 0)) { 8193 mtx_unlock(&lun->lun_lock); 8194 goto done; 8195 } 8196 8197 ctl_clr_prkey(lun, residx); 8198 lun->pr_key_count--; 8199 8200 if (residx == lun->pr_res_idx) { 8201 lun->flags &= ~CTL_LUN_PR_RESERVED; 8202 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8203 8204 if ((lun->res_type == SPR_TYPE_WR_EX_RO 8205 || lun->res_type == SPR_TYPE_EX_AC_RO) 8206 && lun->pr_key_count) { 8207 /* 8208 * If the reservation is a registrants 8209 * only type we need to generate a UA 8210 * for other registered inits. The 8211 * sense code should be RESERVATIONS 8212 * RELEASED 8213 */ 8214 8215 for (i = softc->init_min; i < softc->init_max; i++){ 8216 if (ctl_get_prkey(lun, i) == 0) 8217 continue; 8218 ctl_est_ua(lun, i, 8219 CTL_UA_RES_RELEASE); 8220 } 8221 } 8222 lun->res_type = 0; 8223 } else if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS) { 8224 if (lun->pr_key_count==0) { 8225 lun->flags &= ~CTL_LUN_PR_RESERVED; 8226 lun->res_type = 0; 8227 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8228 } 8229 } 8230 lun->PRGeneration++; 8231 mtx_unlock(&lun->lun_lock); 8232 8233 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8234 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8235 persis_io.pr.pr_info.action = CTL_PR_UNREG_KEY; 8236 persis_io.pr.pr_info.residx = residx; 8237 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8238 sizeof(persis_io.pr), M_WAITOK); 8239 } else /* sa_res_key != 0 */ { 8240 8241 /* 8242 * If we aren't registered currently then increment 8243 * the key count and set the registered flag. 8244 */ 8245 ctl_alloc_prkey(lun, residx); 8246 if (ctl_get_prkey(lun, residx) == 0) 8247 lun->pr_key_count++; 8248 ctl_set_prkey(lun, residx, sa_res_key); 8249 lun->PRGeneration++; 8250 mtx_unlock(&lun->lun_lock); 8251 8252 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8253 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8254 persis_io.pr.pr_info.action = CTL_PR_REG_KEY; 8255 persis_io.pr.pr_info.residx = residx; 8256 memcpy(persis_io.pr.pr_info.sa_res_key, 8257 param->serv_act_res_key, 8258 sizeof(param->serv_act_res_key)); 8259 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8260 sizeof(persis_io.pr), M_WAITOK); 8261 } 8262 8263 break; 8264 } 8265 case SPRO_RESERVE: 8266#if 0 8267 printf("Reserve executed type %d\n", type); 8268#endif 8269 mtx_lock(&lun->lun_lock); 8270 if (lun->flags & CTL_LUN_PR_RESERVED) { 8271 /* 8272 * if this isn't the reservation holder and it's 8273 * not a "all registrants" type or if the type is 8274 * different then we have a conflict 8275 */ 8276 if ((lun->pr_res_idx != residx 8277 && lun->pr_res_idx != CTL_PR_ALL_REGISTRANTS) 8278 || lun->res_type != type) { 8279 mtx_unlock(&lun->lun_lock); 8280 free(ctsio->kern_data_ptr, M_CTL); 8281 ctl_set_reservation_conflict(ctsio); 8282 ctl_done((union ctl_io *)ctsio); 8283 return (CTL_RETVAL_COMPLETE); 8284 } 8285 mtx_unlock(&lun->lun_lock); 8286 } else /* create a reservation */ { 8287 /* 8288 * If it's not an "all registrants" type record 8289 * reservation holder 8290 */ 8291 if (type != SPR_TYPE_WR_EX_AR 8292 && type != SPR_TYPE_EX_AC_AR) 8293 lun->pr_res_idx = residx; /* Res holder */ 8294 else 8295 lun->pr_res_idx = CTL_PR_ALL_REGISTRANTS; 8296 8297 lun->flags |= CTL_LUN_PR_RESERVED; 8298 lun->res_type = type; 8299 8300 mtx_unlock(&lun->lun_lock); 8301 8302 /* send msg to other side */ 8303 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8304 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8305 persis_io.pr.pr_info.action = CTL_PR_RESERVE; 8306 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8307 persis_io.pr.pr_info.res_type = type; 8308 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8309 sizeof(persis_io.pr), M_WAITOK); 8310 } 8311 break; 8312 8313 case SPRO_RELEASE: 8314 mtx_lock(&lun->lun_lock); 8315 if ((lun->flags & CTL_LUN_PR_RESERVED) == 0) { 8316 /* No reservation exists return good status */ 8317 mtx_unlock(&lun->lun_lock); 8318 goto done; 8319 } 8320 /* 8321 * Is this nexus a reservation holder? 8322 */ 8323 if (lun->pr_res_idx != residx 8324 && lun->pr_res_idx != CTL_PR_ALL_REGISTRANTS) { 8325 /* 8326 * not a res holder return good status but 8327 * do nothing 8328 */ 8329 mtx_unlock(&lun->lun_lock); 8330 goto done; 8331 } 8332 8333 if (lun->res_type != type) { 8334 mtx_unlock(&lun->lun_lock); 8335 free(ctsio->kern_data_ptr, M_CTL); 8336 ctl_set_illegal_pr_release(ctsio); 8337 ctl_done((union ctl_io *)ctsio); 8338 return (CTL_RETVAL_COMPLETE); 8339 } 8340 8341 /* okay to release */ 8342 lun->flags &= ~CTL_LUN_PR_RESERVED; 8343 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8344 lun->res_type = 0; 8345 8346 /* 8347 * if this isn't an exclusive access 8348 * res generate UA for all other 8349 * registrants. 8350 */ 8351 if (type != SPR_TYPE_EX_AC 8352 && type != SPR_TYPE_WR_EX) { 8353 for (i = softc->init_min; i < softc->init_max; i++) { 8354 if (i == residx || ctl_get_prkey(lun, i) == 0) 8355 continue; 8356 ctl_est_ua(lun, i, CTL_UA_RES_RELEASE); 8357 } 8358 } 8359 mtx_unlock(&lun->lun_lock); 8360 8361 /* Send msg to other side */ 8362 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8363 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8364 persis_io.pr.pr_info.action = CTL_PR_RELEASE; 8365 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8366 sizeof(persis_io.pr), M_WAITOK); 8367 break; 8368 8369 case SPRO_CLEAR: 8370 /* send msg to other side */ 8371 8372 mtx_lock(&lun->lun_lock); 8373 lun->flags &= ~CTL_LUN_PR_RESERVED; 8374 lun->res_type = 0; 8375 lun->pr_key_count = 0; 8376 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8377 8378 ctl_clr_prkey(lun, residx); 8379 for (i = 0; i < CTL_MAX_INITIATORS; i++) 8380 if (ctl_get_prkey(lun, i) != 0) { 8381 ctl_clr_prkey(lun, i); 8382 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 8383 } 8384 lun->PRGeneration++; 8385 mtx_unlock(&lun->lun_lock); 8386 8387 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8388 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8389 persis_io.pr.pr_info.action = CTL_PR_CLEAR; 8390 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8391 sizeof(persis_io.pr), M_WAITOK); 8392 break; 8393 8394 case SPRO_PREEMPT: 8395 case SPRO_PRE_ABO: { 8396 int nretval; 8397 8398 nretval = ctl_pro_preempt(softc, lun, res_key, sa_res_key, type, 8399 residx, ctsio, cdb, param); 8400 if (nretval != 0) 8401 return (CTL_RETVAL_COMPLETE); 8402 break; 8403 } 8404 default: 8405 panic("Invalid PR type %x", cdb->action); 8406 } 8407 8408done: 8409 free(ctsio->kern_data_ptr, M_CTL); 8410 ctl_set_success(ctsio); 8411 ctl_done((union ctl_io *)ctsio); 8412 8413 return (retval); 8414} 8415 8416/* 8417 * This routine is for handling a message from the other SC pertaining to 8418 * persistent reserve out. All the error checking will have been done 8419 * so only perorming the action need be done here to keep the two 8420 * in sync. 8421 */ 8422static void 8423ctl_hndl_per_res_out_on_other_sc(union ctl_ha_msg *msg) 8424{ 8425 struct ctl_lun *lun; 8426 struct ctl_softc *softc; 8427 int i; 8428 uint32_t residx, targ_lun; 8429 8430 softc = control_softc; 8431 targ_lun = msg->hdr.nexus.targ_mapped_lun; 8432 mtx_lock(&softc->ctl_lock); 8433 if ((targ_lun >= CTL_MAX_LUNS) || 8434 ((lun = softc->ctl_luns[targ_lun]) == NULL)) { 8435 mtx_unlock(&softc->ctl_lock); 8436 return; 8437 } 8438 mtx_lock(&lun->lun_lock); 8439 mtx_unlock(&softc->ctl_lock); 8440 if (lun->flags & CTL_LUN_DISABLED) { 8441 mtx_unlock(&lun->lun_lock); 8442 return; 8443 } 8444 residx = ctl_get_initindex(&msg->hdr.nexus); 8445 switch(msg->pr.pr_info.action) { 8446 case CTL_PR_REG_KEY: 8447 ctl_alloc_prkey(lun, msg->pr.pr_info.residx); 8448 if (ctl_get_prkey(lun, msg->pr.pr_info.residx) == 0) 8449 lun->pr_key_count++; 8450 ctl_set_prkey(lun, msg->pr.pr_info.residx, 8451 scsi_8btou64(msg->pr.pr_info.sa_res_key)); 8452 lun->PRGeneration++; 8453 break; 8454 8455 case CTL_PR_UNREG_KEY: 8456 ctl_clr_prkey(lun, msg->pr.pr_info.residx); 8457 lun->pr_key_count--; 8458 8459 /* XXX Need to see if the reservation has been released */ 8460 /* if so do we need to generate UA? */ 8461 if (msg->pr.pr_info.residx == lun->pr_res_idx) { 8462 lun->flags &= ~CTL_LUN_PR_RESERVED; 8463 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8464 8465 if ((lun->res_type == SPR_TYPE_WR_EX_RO 8466 || lun->res_type == SPR_TYPE_EX_AC_RO) 8467 && lun->pr_key_count) { 8468 /* 8469 * If the reservation is a registrants 8470 * only type we need to generate a UA 8471 * for other registered inits. The 8472 * sense code should be RESERVATIONS 8473 * RELEASED 8474 */ 8475 8476 for (i = softc->init_min; i < softc->init_max; i++) { 8477 if (ctl_get_prkey(lun, i) == 0) 8478 continue; 8479 8480 ctl_est_ua(lun, i, CTL_UA_RES_RELEASE); 8481 } 8482 } 8483 lun->res_type = 0; 8484 } else if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS) { 8485 if (lun->pr_key_count==0) { 8486 lun->flags &= ~CTL_LUN_PR_RESERVED; 8487 lun->res_type = 0; 8488 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8489 } 8490 } 8491 lun->PRGeneration++; 8492 break; 8493 8494 case CTL_PR_RESERVE: 8495 lun->flags |= CTL_LUN_PR_RESERVED; 8496 lun->res_type = msg->pr.pr_info.res_type; 8497 lun->pr_res_idx = msg->pr.pr_info.residx; 8498 8499 break; 8500 8501 case CTL_PR_RELEASE: 8502 /* 8503 * if this isn't an exclusive access res generate UA for all 8504 * other registrants. 8505 */ 8506 if (lun->res_type != SPR_TYPE_EX_AC 8507 && lun->res_type != SPR_TYPE_WR_EX) { 8508 for (i = softc->init_min; i < softc->init_max; i++) 8509 if (i == residx || ctl_get_prkey(lun, i) == 0) 8510 continue; 8511 ctl_est_ua(lun, i, CTL_UA_RES_RELEASE); 8512 } 8513 8514 lun->flags &= ~CTL_LUN_PR_RESERVED; 8515 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8516 lun->res_type = 0; 8517 break; 8518 8519 case CTL_PR_PREEMPT: 8520 ctl_pro_preempt_other(lun, msg); 8521 break; 8522 case CTL_PR_CLEAR: 8523 lun->flags &= ~CTL_LUN_PR_RESERVED; 8524 lun->res_type = 0; 8525 lun->pr_key_count = 0; 8526 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8527 8528 for (i=0; i < CTL_MAX_INITIATORS; i++) { 8529 if (ctl_get_prkey(lun, i) == 0) 8530 continue; 8531 ctl_clr_prkey(lun, i); 8532 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 8533 } 8534 lun->PRGeneration++; 8535 break; 8536 } 8537 8538 mtx_unlock(&lun->lun_lock); 8539} 8540 8541int 8542ctl_read_write(struct ctl_scsiio *ctsio) 8543{ 8544 struct ctl_lun *lun; 8545 struct ctl_lba_len_flags *lbalen; 8546 uint64_t lba; 8547 uint32_t num_blocks; 8548 int flags, retval; 8549 int isread; 8550 8551 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 8552 8553 CTL_DEBUG_PRINT(("ctl_read_write: command: %#x\n", ctsio->cdb[0])); 8554 8555 flags = 0; 8556 retval = CTL_RETVAL_COMPLETE; 8557 8558 isread = ctsio->cdb[0] == READ_6 || ctsio->cdb[0] == READ_10 8559 || ctsio->cdb[0] == READ_12 || ctsio->cdb[0] == READ_16; 8560 switch (ctsio->cdb[0]) { 8561 case READ_6: 8562 case WRITE_6: { 8563 struct scsi_rw_6 *cdb; 8564 8565 cdb = (struct scsi_rw_6 *)ctsio->cdb; 8566 8567 lba = scsi_3btoul(cdb->addr); 8568 /* only 5 bits are valid in the most significant address byte */ 8569 lba &= 0x1fffff; 8570 num_blocks = cdb->length; 8571 /* 8572 * This is correct according to SBC-2. 8573 */ 8574 if (num_blocks == 0) 8575 num_blocks = 256; 8576 break; 8577 } 8578 case READ_10: 8579 case WRITE_10: { 8580 struct scsi_rw_10 *cdb; 8581 8582 cdb = (struct scsi_rw_10 *)ctsio->cdb; 8583 if (cdb->byte2 & SRW10_FUA) 8584 flags |= CTL_LLF_FUA; 8585 if (cdb->byte2 & SRW10_DPO) 8586 flags |= CTL_LLF_DPO; 8587 lba = scsi_4btoul(cdb->addr); 8588 num_blocks = scsi_2btoul(cdb->length); 8589 break; 8590 } 8591 case WRITE_VERIFY_10: { 8592 struct scsi_write_verify_10 *cdb; 8593 8594 cdb = (struct scsi_write_verify_10 *)ctsio->cdb; 8595 flags |= CTL_LLF_FUA; 8596 if (cdb->byte2 & SWV_DPO) 8597 flags |= CTL_LLF_DPO; 8598 lba = scsi_4btoul(cdb->addr); 8599 num_blocks = scsi_2btoul(cdb->length); 8600 break; 8601 } 8602 case READ_12: 8603 case WRITE_12: { 8604 struct scsi_rw_12 *cdb; 8605 8606 cdb = (struct scsi_rw_12 *)ctsio->cdb; 8607 if (cdb->byte2 & SRW12_FUA) 8608 flags |= CTL_LLF_FUA; 8609 if (cdb->byte2 & SRW12_DPO) 8610 flags |= CTL_LLF_DPO; 8611 lba = scsi_4btoul(cdb->addr); 8612 num_blocks = scsi_4btoul(cdb->length); 8613 break; 8614 } 8615 case WRITE_VERIFY_12: { 8616 struct scsi_write_verify_12 *cdb; 8617 8618 cdb = (struct scsi_write_verify_12 *)ctsio->cdb; 8619 flags |= CTL_LLF_FUA; 8620 if (cdb->byte2 & SWV_DPO) 8621 flags |= CTL_LLF_DPO; 8622 lba = scsi_4btoul(cdb->addr); 8623 num_blocks = scsi_4btoul(cdb->length); 8624 break; 8625 } 8626 case READ_16: 8627 case WRITE_16: { 8628 struct scsi_rw_16 *cdb; 8629 8630 cdb = (struct scsi_rw_16 *)ctsio->cdb; 8631 if (cdb->byte2 & SRW12_FUA) 8632 flags |= CTL_LLF_FUA; 8633 if (cdb->byte2 & SRW12_DPO) 8634 flags |= CTL_LLF_DPO; 8635 lba = scsi_8btou64(cdb->addr); 8636 num_blocks = scsi_4btoul(cdb->length); 8637 break; 8638 } 8639 case WRITE_ATOMIC_16: { 8640 struct scsi_rw_16 *cdb; 8641 8642 if (lun->be_lun->atomicblock == 0) { 8643 ctl_set_invalid_opcode(ctsio); 8644 ctl_done((union ctl_io *)ctsio); 8645 return (CTL_RETVAL_COMPLETE); 8646 } 8647 8648 cdb = (struct scsi_rw_16 *)ctsio->cdb; 8649 if (cdb->byte2 & SRW12_FUA) 8650 flags |= CTL_LLF_FUA; 8651 if (cdb->byte2 & SRW12_DPO) 8652 flags |= CTL_LLF_DPO; 8653 lba = scsi_8btou64(cdb->addr); 8654 num_blocks = scsi_4btoul(cdb->length); 8655 if (num_blocks > lun->be_lun->atomicblock) { 8656 ctl_set_invalid_field(ctsio, /*sks_valid*/ 1, 8657 /*command*/ 1, /*field*/ 12, /*bit_valid*/ 0, 8658 /*bit*/ 0); 8659 ctl_done((union ctl_io *)ctsio); 8660 return (CTL_RETVAL_COMPLETE); 8661 } 8662 break; 8663 } 8664 case WRITE_VERIFY_16: { 8665 struct scsi_write_verify_16 *cdb; 8666 8667 cdb = (struct scsi_write_verify_16 *)ctsio->cdb; 8668 flags |= CTL_LLF_FUA; 8669 if (cdb->byte2 & SWV_DPO) 8670 flags |= CTL_LLF_DPO; 8671 lba = scsi_8btou64(cdb->addr); 8672 num_blocks = scsi_4btoul(cdb->length); 8673 break; 8674 } 8675 default: 8676 /* 8677 * We got a command we don't support. This shouldn't 8678 * happen, commands should be filtered out above us. 8679 */ 8680 ctl_set_invalid_opcode(ctsio); 8681 ctl_done((union ctl_io *)ctsio); 8682 8683 return (CTL_RETVAL_COMPLETE); 8684 break; /* NOTREACHED */ 8685 } 8686 8687 /* 8688 * The first check is to make sure we're in bounds, the second 8689 * check is to catch wrap-around problems. If the lba + num blocks 8690 * is less than the lba, then we've wrapped around and the block 8691 * range is invalid anyway. 8692 */ 8693 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 8694 || ((lba + num_blocks) < lba)) { 8695 ctl_set_lba_out_of_range(ctsio); 8696 ctl_done((union ctl_io *)ctsio); 8697 return (CTL_RETVAL_COMPLETE); 8698 } 8699 8700 /* 8701 * According to SBC-3, a transfer length of 0 is not an error. 8702 * Note that this cannot happen with WRITE(6) or READ(6), since 0 8703 * translates to 256 blocks for those commands. 8704 */ 8705 if (num_blocks == 0) { 8706 ctl_set_success(ctsio); 8707 ctl_done((union ctl_io *)ctsio); 8708 return (CTL_RETVAL_COMPLETE); 8709 } 8710 8711 /* Set FUA and/or DPO if caches are disabled. */ 8712 if (isread) { 8713 if ((lun->mode_pages.caching_page[CTL_PAGE_CURRENT].flags1 & 8714 SCP_RCD) != 0) 8715 flags |= CTL_LLF_FUA | CTL_LLF_DPO; 8716 } else { 8717 if ((lun->mode_pages.caching_page[CTL_PAGE_CURRENT].flags1 & 8718 SCP_WCE) == 0) 8719 flags |= CTL_LLF_FUA; 8720 } 8721 8722 lbalen = (struct ctl_lba_len_flags *) 8723 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 8724 lbalen->lba = lba; 8725 lbalen->len = num_blocks; 8726 lbalen->flags = (isread ? CTL_LLF_READ : CTL_LLF_WRITE) | flags; 8727 8728 ctsio->kern_total_len = num_blocks * lun->be_lun->blocksize; 8729 ctsio->kern_rel_offset = 0; 8730 8731 CTL_DEBUG_PRINT(("ctl_read_write: calling data_submit()\n")); 8732 8733 retval = lun->backend->data_submit((union ctl_io *)ctsio); 8734 8735 return (retval); 8736} 8737 8738static int 8739ctl_cnw_cont(union ctl_io *io) 8740{ 8741 struct ctl_scsiio *ctsio; 8742 struct ctl_lun *lun; 8743 struct ctl_lba_len_flags *lbalen; 8744 int retval; 8745 8746 ctsio = &io->scsiio; 8747 ctsio->io_hdr.status = CTL_STATUS_NONE; 8748 ctsio->io_hdr.flags &= ~CTL_FLAG_IO_CONT; 8749 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 8750 lbalen = (struct ctl_lba_len_flags *) 8751 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 8752 lbalen->flags &= ~CTL_LLF_COMPARE; 8753 lbalen->flags |= CTL_LLF_WRITE; 8754 8755 CTL_DEBUG_PRINT(("ctl_cnw_cont: calling data_submit()\n")); 8756 retval = lun->backend->data_submit((union ctl_io *)ctsio); 8757 return (retval); 8758} 8759 8760int 8761ctl_cnw(struct ctl_scsiio *ctsio) 8762{ 8763 struct ctl_lun *lun; 8764 struct ctl_lba_len_flags *lbalen; 8765 uint64_t lba; 8766 uint32_t num_blocks; 8767 int flags, retval; 8768 8769 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 8770 8771 CTL_DEBUG_PRINT(("ctl_cnw: command: %#x\n", ctsio->cdb[0])); 8772 8773 flags = 0; 8774 retval = CTL_RETVAL_COMPLETE; 8775 8776 switch (ctsio->cdb[0]) { 8777 case COMPARE_AND_WRITE: { 8778 struct scsi_compare_and_write *cdb; 8779 8780 cdb = (struct scsi_compare_and_write *)ctsio->cdb; 8781 if (cdb->byte2 & SRW10_FUA) 8782 flags |= CTL_LLF_FUA; 8783 if (cdb->byte2 & SRW10_DPO) 8784 flags |= CTL_LLF_DPO; 8785 lba = scsi_8btou64(cdb->addr); 8786 num_blocks = cdb->length; 8787 break; 8788 } 8789 default: 8790 /* 8791 * We got a command we don't support. This shouldn't 8792 * happen, commands should be filtered out above us. 8793 */ 8794 ctl_set_invalid_opcode(ctsio); 8795 ctl_done((union ctl_io *)ctsio); 8796 8797 return (CTL_RETVAL_COMPLETE); 8798 break; /* NOTREACHED */ 8799 } 8800 8801 /* 8802 * The first check is to make sure we're in bounds, the second 8803 * check is to catch wrap-around problems. If the lba + num blocks 8804 * is less than the lba, then we've wrapped around and the block 8805 * range is invalid anyway. 8806 */ 8807 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 8808 || ((lba + num_blocks) < lba)) { 8809 ctl_set_lba_out_of_range(ctsio); 8810 ctl_done((union ctl_io *)ctsio); 8811 return (CTL_RETVAL_COMPLETE); 8812 } 8813 8814 /* 8815 * According to SBC-3, a transfer length of 0 is not an error. 8816 */ 8817 if (num_blocks == 0) { 8818 ctl_set_success(ctsio); 8819 ctl_done((union ctl_io *)ctsio); 8820 return (CTL_RETVAL_COMPLETE); 8821 } 8822 8823 /* Set FUA if write cache is disabled. */ 8824 if ((lun->mode_pages.caching_page[CTL_PAGE_CURRENT].flags1 & 8825 SCP_WCE) == 0) 8826 flags |= CTL_LLF_FUA; 8827 8828 ctsio->kern_total_len = 2 * num_blocks * lun->be_lun->blocksize; 8829 ctsio->kern_rel_offset = 0; 8830 8831 /* 8832 * Set the IO_CONT flag, so that if this I/O gets passed to 8833 * ctl_data_submit_done(), it'll get passed back to 8834 * ctl_ctl_cnw_cont() for further processing. 8835 */ 8836 ctsio->io_hdr.flags |= CTL_FLAG_IO_CONT; 8837 ctsio->io_cont = ctl_cnw_cont; 8838 8839 lbalen = (struct ctl_lba_len_flags *) 8840 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 8841 lbalen->lba = lba; 8842 lbalen->len = num_blocks; 8843 lbalen->flags = CTL_LLF_COMPARE | flags; 8844 8845 CTL_DEBUG_PRINT(("ctl_cnw: calling data_submit()\n")); 8846 retval = lun->backend->data_submit((union ctl_io *)ctsio); 8847 return (retval); 8848} 8849 8850int 8851ctl_verify(struct ctl_scsiio *ctsio) 8852{ 8853 struct ctl_lun *lun; 8854 struct ctl_lba_len_flags *lbalen; 8855 uint64_t lba; 8856 uint32_t num_blocks; 8857 int bytchk, flags; 8858 int retval; 8859 8860 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 8861 8862 CTL_DEBUG_PRINT(("ctl_verify: command: %#x\n", ctsio->cdb[0])); 8863 8864 bytchk = 0; 8865 flags = CTL_LLF_FUA; 8866 retval = CTL_RETVAL_COMPLETE; 8867 8868 switch (ctsio->cdb[0]) { 8869 case VERIFY_10: { 8870 struct scsi_verify_10 *cdb; 8871 8872 cdb = (struct scsi_verify_10 *)ctsio->cdb; 8873 if (cdb->byte2 & SVFY_BYTCHK) 8874 bytchk = 1; 8875 if (cdb->byte2 & SVFY_DPO) 8876 flags |= CTL_LLF_DPO; 8877 lba = scsi_4btoul(cdb->addr); 8878 num_blocks = scsi_2btoul(cdb->length); 8879 break; 8880 } 8881 case VERIFY_12: { 8882 struct scsi_verify_12 *cdb; 8883 8884 cdb = (struct scsi_verify_12 *)ctsio->cdb; 8885 if (cdb->byte2 & SVFY_BYTCHK) 8886 bytchk = 1; 8887 if (cdb->byte2 & SVFY_DPO) 8888 flags |= CTL_LLF_DPO; 8889 lba = scsi_4btoul(cdb->addr); 8890 num_blocks = scsi_4btoul(cdb->length); 8891 break; 8892 } 8893 case VERIFY_16: { 8894 struct scsi_rw_16 *cdb; 8895 8896 cdb = (struct scsi_rw_16 *)ctsio->cdb; 8897 if (cdb->byte2 & SVFY_BYTCHK) 8898 bytchk = 1; 8899 if (cdb->byte2 & SVFY_DPO) 8900 flags |= CTL_LLF_DPO; 8901 lba = scsi_8btou64(cdb->addr); 8902 num_blocks = scsi_4btoul(cdb->length); 8903 break; 8904 } 8905 default: 8906 /* 8907 * We got a command we don't support. This shouldn't 8908 * happen, commands should be filtered out above us. 8909 */ 8910 ctl_set_invalid_opcode(ctsio); 8911 ctl_done((union ctl_io *)ctsio); 8912 return (CTL_RETVAL_COMPLETE); 8913 } 8914 8915 /* 8916 * The first check is to make sure we're in bounds, the second 8917 * check is to catch wrap-around problems. If the lba + num blocks 8918 * is less than the lba, then we've wrapped around and the block 8919 * range is invalid anyway. 8920 */ 8921 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 8922 || ((lba + num_blocks) < lba)) { 8923 ctl_set_lba_out_of_range(ctsio); 8924 ctl_done((union ctl_io *)ctsio); 8925 return (CTL_RETVAL_COMPLETE); 8926 } 8927 8928 /* 8929 * According to SBC-3, a transfer length of 0 is not an error. 8930 */ 8931 if (num_blocks == 0) { 8932 ctl_set_success(ctsio); 8933 ctl_done((union ctl_io *)ctsio); 8934 return (CTL_RETVAL_COMPLETE); 8935 } 8936 8937 lbalen = (struct ctl_lba_len_flags *) 8938 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 8939 lbalen->lba = lba; 8940 lbalen->len = num_blocks; 8941 if (bytchk) { 8942 lbalen->flags = CTL_LLF_COMPARE | flags; 8943 ctsio->kern_total_len = num_blocks * lun->be_lun->blocksize; 8944 } else { 8945 lbalen->flags = CTL_LLF_VERIFY | flags; 8946 ctsio->kern_total_len = 0; 8947 } 8948 ctsio->kern_rel_offset = 0; 8949 8950 CTL_DEBUG_PRINT(("ctl_verify: calling data_submit()\n")); 8951 retval = lun->backend->data_submit((union ctl_io *)ctsio); 8952 return (retval); 8953} 8954 8955int 8956ctl_report_luns(struct ctl_scsiio *ctsio) 8957{ 8958 struct ctl_softc *softc = control_softc; 8959 struct scsi_report_luns *cdb; 8960 struct scsi_report_luns_data *lun_data; 8961 struct ctl_lun *lun, *request_lun; 8962 struct ctl_port *port; 8963 int num_luns, retval; 8964 uint32_t alloc_len, lun_datalen; 8965 int num_filled, well_known; 8966 uint32_t initidx, targ_lun_id, lun_id; 8967 8968 retval = CTL_RETVAL_COMPLETE; 8969 well_known = 0; 8970 8971 cdb = (struct scsi_report_luns *)ctsio->cdb; 8972 port = ctl_io_port(&ctsio->io_hdr); 8973 8974 CTL_DEBUG_PRINT(("ctl_report_luns\n")); 8975 8976 mtx_lock(&softc->ctl_lock); 8977 num_luns = 0; 8978 for (targ_lun_id = 0; targ_lun_id < CTL_MAX_LUNS; targ_lun_id++) { 8979 if (ctl_lun_map_from_port(port, targ_lun_id) < CTL_MAX_LUNS) 8980 num_luns++; 8981 } 8982 mtx_unlock(&softc->ctl_lock); 8983 8984 switch (cdb->select_report) { 8985 case RPL_REPORT_DEFAULT: 8986 case RPL_REPORT_ALL: 8987 break; 8988 case RPL_REPORT_WELLKNOWN: 8989 well_known = 1; 8990 num_luns = 0; 8991 break; 8992 default: 8993 ctl_set_invalid_field(ctsio, 8994 /*sks_valid*/ 1, 8995 /*command*/ 1, 8996 /*field*/ 2, 8997 /*bit_valid*/ 0, 8998 /*bit*/ 0); 8999 ctl_done((union ctl_io *)ctsio); 9000 return (retval); 9001 break; /* NOTREACHED */ 9002 } 9003 9004 alloc_len = scsi_4btoul(cdb->length); 9005 /* 9006 * The initiator has to allocate at least 16 bytes for this request, 9007 * so he can at least get the header and the first LUN. Otherwise 9008 * we reject the request (per SPC-3 rev 14, section 6.21). 9009 */ 9010 if (alloc_len < (sizeof(struct scsi_report_luns_data) + 9011 sizeof(struct scsi_report_luns_lundata))) { 9012 ctl_set_invalid_field(ctsio, 9013 /*sks_valid*/ 1, 9014 /*command*/ 1, 9015 /*field*/ 6, 9016 /*bit_valid*/ 0, 9017 /*bit*/ 0); 9018 ctl_done((union ctl_io *)ctsio); 9019 return (retval); 9020 } 9021 9022 request_lun = (struct ctl_lun *) 9023 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9024 9025 lun_datalen = sizeof(*lun_data) + 9026 (num_luns * sizeof(struct scsi_report_luns_lundata)); 9027 9028 ctsio->kern_data_ptr = malloc(lun_datalen, M_CTL, M_WAITOK | M_ZERO); 9029 lun_data = (struct scsi_report_luns_data *)ctsio->kern_data_ptr; 9030 ctsio->kern_sg_entries = 0; 9031 9032 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 9033 9034 mtx_lock(&softc->ctl_lock); 9035 for (targ_lun_id = 0, num_filled = 0; targ_lun_id < CTL_MAX_LUNS && num_filled < num_luns; targ_lun_id++) { 9036 lun_id = ctl_lun_map_from_port(port, targ_lun_id); 9037 if (lun_id >= CTL_MAX_LUNS) 9038 continue; 9039 lun = softc->ctl_luns[lun_id]; 9040 if (lun == NULL) 9041 continue; 9042 9043 if (targ_lun_id <= 0xff) { 9044 /* 9045 * Peripheral addressing method, bus number 0. 9046 */ 9047 lun_data->luns[num_filled].lundata[0] = 9048 RPL_LUNDATA_ATYP_PERIPH; 9049 lun_data->luns[num_filled].lundata[1] = targ_lun_id; 9050 num_filled++; 9051 } else if (targ_lun_id <= 0x3fff) { 9052 /* 9053 * Flat addressing method. 9054 */ 9055 lun_data->luns[num_filled].lundata[0] = 9056 RPL_LUNDATA_ATYP_FLAT | (targ_lun_id >> 8); 9057 lun_data->luns[num_filled].lundata[1] = 9058 (targ_lun_id & 0xff); 9059 num_filled++; 9060 } else if (targ_lun_id <= 0xffffff) { 9061 /* 9062 * Extended flat addressing method. 9063 */ 9064 lun_data->luns[num_filled].lundata[0] = 9065 RPL_LUNDATA_ATYP_EXTLUN | 0x12; 9066 scsi_ulto3b(targ_lun_id, 9067 &lun_data->luns[num_filled].lundata[1]); 9068 num_filled++; 9069 } else { 9070 printf("ctl_report_luns: bogus LUN number %jd, " 9071 "skipping\n", (intmax_t)targ_lun_id); 9072 } 9073 /* 9074 * According to SPC-3, rev 14 section 6.21: 9075 * 9076 * "The execution of a REPORT LUNS command to any valid and 9077 * installed logical unit shall clear the REPORTED LUNS DATA 9078 * HAS CHANGED unit attention condition for all logical 9079 * units of that target with respect to the requesting 9080 * initiator. A valid and installed logical unit is one 9081 * having a PERIPHERAL QUALIFIER of 000b in the standard 9082 * INQUIRY data (see 6.4.2)." 9083 * 9084 * If request_lun is NULL, the LUN this report luns command 9085 * was issued to is either disabled or doesn't exist. In that 9086 * case, we shouldn't clear any pending lun change unit 9087 * attention. 9088 */ 9089 if (request_lun != NULL) { 9090 mtx_lock(&lun->lun_lock); 9091 ctl_clr_ua(lun, initidx, CTL_UA_LUN_CHANGE); 9092 mtx_unlock(&lun->lun_lock); 9093 } 9094 } 9095 mtx_unlock(&softc->ctl_lock); 9096 9097 /* 9098 * It's quite possible that we've returned fewer LUNs than we allocated 9099 * space for. Trim it. 9100 */ 9101 lun_datalen = sizeof(*lun_data) + 9102 (num_filled * sizeof(struct scsi_report_luns_lundata)); 9103 9104 if (lun_datalen < alloc_len) { 9105 ctsio->residual = alloc_len - lun_datalen; 9106 ctsio->kern_data_len = lun_datalen; 9107 ctsio->kern_total_len = lun_datalen; 9108 } else { 9109 ctsio->residual = 0; 9110 ctsio->kern_data_len = alloc_len; 9111 ctsio->kern_total_len = alloc_len; 9112 } 9113 ctsio->kern_data_resid = 0; 9114 ctsio->kern_rel_offset = 0; 9115 ctsio->kern_sg_entries = 0; 9116 9117 /* 9118 * We set this to the actual data length, regardless of how much 9119 * space we actually have to return results. If the user looks at 9120 * this value, he'll know whether or not he allocated enough space 9121 * and reissue the command if necessary. We don't support well 9122 * known logical units, so if the user asks for that, return none. 9123 */ 9124 scsi_ulto4b(lun_datalen - 8, lun_data->length); 9125 9126 /* 9127 * We can only return SCSI_STATUS_CHECK_COND when we can't satisfy 9128 * this request. 9129 */ 9130 ctl_set_success(ctsio); 9131 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9132 ctsio->be_move_done = ctl_config_move_done; 9133 ctl_datamove((union ctl_io *)ctsio); 9134 return (retval); 9135} 9136 9137int 9138ctl_request_sense(struct ctl_scsiio *ctsio) 9139{ 9140 struct scsi_request_sense *cdb; 9141 struct scsi_sense_data *sense_ptr; 9142 struct ctl_softc *ctl_softc; 9143 struct ctl_lun *lun; 9144 uint32_t initidx; 9145 int have_error; 9146 scsi_sense_data_type sense_format; 9147 ctl_ua_type ua_type; 9148 9149 cdb = (struct scsi_request_sense *)ctsio->cdb; 9150 9151 ctl_softc = control_softc; 9152 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9153 9154 CTL_DEBUG_PRINT(("ctl_request_sense\n")); 9155 9156 /* 9157 * Determine which sense format the user wants. 9158 */ 9159 if (cdb->byte2 & SRS_DESC) 9160 sense_format = SSD_TYPE_DESC; 9161 else 9162 sense_format = SSD_TYPE_FIXED; 9163 9164 ctsio->kern_data_ptr = malloc(sizeof(*sense_ptr), M_CTL, M_WAITOK); 9165 sense_ptr = (struct scsi_sense_data *)ctsio->kern_data_ptr; 9166 ctsio->kern_sg_entries = 0; 9167 9168 /* 9169 * struct scsi_sense_data, which is currently set to 256 bytes, is 9170 * larger than the largest allowed value for the length field in the 9171 * REQUEST SENSE CDB, which is 252 bytes as of SPC-4. 9172 */ 9173 ctsio->residual = 0; 9174 ctsio->kern_data_len = cdb->length; 9175 ctsio->kern_total_len = cdb->length; 9176 9177 ctsio->kern_data_resid = 0; 9178 ctsio->kern_rel_offset = 0; 9179 ctsio->kern_sg_entries = 0; 9180 9181 /* 9182 * If we don't have a LUN, we don't have any pending sense. 9183 */ 9184 if (lun == NULL) 9185 goto no_sense; 9186 9187 have_error = 0; 9188 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 9189 /* 9190 * Check for pending sense, and then for pending unit attentions. 9191 * Pending sense gets returned first, then pending unit attentions. 9192 */ 9193 mtx_lock(&lun->lun_lock); 9194#ifdef CTL_WITH_CA 9195 if (ctl_is_set(lun->have_ca, initidx)) { 9196 scsi_sense_data_type stored_format; 9197 9198 /* 9199 * Check to see which sense format was used for the stored 9200 * sense data. 9201 */ 9202 stored_format = scsi_sense_type(&lun->pending_sense[initidx]); 9203 9204 /* 9205 * If the user requested a different sense format than the 9206 * one we stored, then we need to convert it to the other 9207 * format. If we're going from descriptor to fixed format 9208 * sense data, we may lose things in translation, depending 9209 * on what options were used. 9210 * 9211 * If the stored format is SSD_TYPE_NONE (i.e. invalid), 9212 * for some reason we'll just copy it out as-is. 9213 */ 9214 if ((stored_format == SSD_TYPE_FIXED) 9215 && (sense_format == SSD_TYPE_DESC)) 9216 ctl_sense_to_desc((struct scsi_sense_data_fixed *) 9217 &lun->pending_sense[initidx], 9218 (struct scsi_sense_data_desc *)sense_ptr); 9219 else if ((stored_format == SSD_TYPE_DESC) 9220 && (sense_format == SSD_TYPE_FIXED)) 9221 ctl_sense_to_fixed((struct scsi_sense_data_desc *) 9222 &lun->pending_sense[initidx], 9223 (struct scsi_sense_data_fixed *)sense_ptr); 9224 else 9225 memcpy(sense_ptr, &lun->pending_sense[initidx], 9226 MIN(sizeof(*sense_ptr), 9227 sizeof(lun->pending_sense[initidx]))); 9228 9229 ctl_clear_mask(lun->have_ca, initidx); 9230 have_error = 1; 9231 } else 9232#endif 9233 { 9234 ua_type = ctl_build_ua(lun, initidx, sense_ptr, sense_format); 9235 if (ua_type != CTL_UA_NONE) 9236 have_error = 1; 9237 if (ua_type == CTL_UA_LUN_CHANGE) { 9238 mtx_unlock(&lun->lun_lock); 9239 mtx_lock(&ctl_softc->ctl_lock); 9240 ctl_clr_ua_allluns(ctl_softc, initidx, ua_type); 9241 mtx_unlock(&ctl_softc->ctl_lock); 9242 mtx_lock(&lun->lun_lock); 9243 } 9244 9245 } 9246 mtx_unlock(&lun->lun_lock); 9247 9248 /* 9249 * We already have a pending error, return it. 9250 */ 9251 if (have_error != 0) { 9252 /* 9253 * We report the SCSI status as OK, since the status of the 9254 * request sense command itself is OK. 9255 * We report 0 for the sense length, because we aren't doing 9256 * autosense in this case. We're reporting sense as 9257 * parameter data. 9258 */ 9259 ctl_set_success(ctsio); 9260 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9261 ctsio->be_move_done = ctl_config_move_done; 9262 ctl_datamove((union ctl_io *)ctsio); 9263 return (CTL_RETVAL_COMPLETE); 9264 } 9265 9266no_sense: 9267 9268 /* 9269 * No sense information to report, so we report that everything is 9270 * okay. 9271 */ 9272 ctl_set_sense_data(sense_ptr, 9273 lun, 9274 sense_format, 9275 /*current_error*/ 1, 9276 /*sense_key*/ SSD_KEY_NO_SENSE, 9277 /*asc*/ 0x00, 9278 /*ascq*/ 0x00, 9279 SSD_ELEM_NONE); 9280 9281 /* 9282 * We report 0 for the sense length, because we aren't doing 9283 * autosense in this case. We're reporting sense as parameter data. 9284 */ 9285 ctl_set_success(ctsio); 9286 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9287 ctsio->be_move_done = ctl_config_move_done; 9288 ctl_datamove((union ctl_io *)ctsio); 9289 return (CTL_RETVAL_COMPLETE); 9290} 9291 9292int 9293ctl_tur(struct ctl_scsiio *ctsio) 9294{ 9295 9296 CTL_DEBUG_PRINT(("ctl_tur\n")); 9297 9298 ctl_set_success(ctsio); 9299 ctl_done((union ctl_io *)ctsio); 9300 9301 return (CTL_RETVAL_COMPLETE); 9302} 9303 9304/* 9305 * SCSI VPD page 0x00, the Supported VPD Pages page. 9306 */ 9307static int 9308ctl_inquiry_evpd_supported(struct ctl_scsiio *ctsio, int alloc_len) 9309{ 9310 struct scsi_vpd_supported_pages *pages; 9311 int sup_page_size; 9312 struct ctl_lun *lun; 9313 int p; 9314 9315 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9316 9317 sup_page_size = sizeof(struct scsi_vpd_supported_pages) * 9318 SCSI_EVPD_NUM_SUPPORTED_PAGES; 9319 ctsio->kern_data_ptr = malloc(sup_page_size, M_CTL, M_WAITOK | M_ZERO); 9320 pages = (struct scsi_vpd_supported_pages *)ctsio->kern_data_ptr; 9321 ctsio->kern_sg_entries = 0; 9322 9323 if (sup_page_size < alloc_len) { 9324 ctsio->residual = alloc_len - sup_page_size; 9325 ctsio->kern_data_len = sup_page_size; 9326 ctsio->kern_total_len = sup_page_size; 9327 } else { 9328 ctsio->residual = 0; 9329 ctsio->kern_data_len = alloc_len; 9330 ctsio->kern_total_len = alloc_len; 9331 } 9332 ctsio->kern_data_resid = 0; 9333 ctsio->kern_rel_offset = 0; 9334 ctsio->kern_sg_entries = 0; 9335 9336 /* 9337 * The control device is always connected. The disk device, on the 9338 * other hand, may not be online all the time. Need to change this 9339 * to figure out whether the disk device is actually online or not. 9340 */ 9341 if (lun != NULL) 9342 pages->device = (SID_QUAL_LU_CONNECTED << 5) | 9343 lun->be_lun->lun_type; 9344 else 9345 pages->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9346 9347 p = 0; 9348 /* Supported VPD pages */ 9349 pages->page_list[p++] = SVPD_SUPPORTED_PAGES; 9350 /* Serial Number */ 9351 pages->page_list[p++] = SVPD_UNIT_SERIAL_NUMBER; 9352 /* Device Identification */ 9353 pages->page_list[p++] = SVPD_DEVICE_ID; 9354 /* Extended INQUIRY Data */ 9355 pages->page_list[p++] = SVPD_EXTENDED_INQUIRY_DATA; 9356 /* Mode Page Policy */ 9357 pages->page_list[p++] = SVPD_MODE_PAGE_POLICY; 9358 /* SCSI Ports */ 9359 pages->page_list[p++] = SVPD_SCSI_PORTS; 9360 /* Third-party Copy */ 9361 pages->page_list[p++] = SVPD_SCSI_TPC; 9362 if (lun != NULL && lun->be_lun->lun_type == T_DIRECT) { 9363 /* Block limits */ 9364 pages->page_list[p++] = SVPD_BLOCK_LIMITS; 9365 /* Block Device Characteristics */ 9366 pages->page_list[p++] = SVPD_BDC; 9367 /* Logical Block Provisioning */ 9368 pages->page_list[p++] = SVPD_LBP; 9369 } 9370 pages->length = p; 9371 9372 ctl_set_success(ctsio); 9373 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9374 ctsio->be_move_done = ctl_config_move_done; 9375 ctl_datamove((union ctl_io *)ctsio); 9376 return (CTL_RETVAL_COMPLETE); 9377} 9378 9379/* 9380 * SCSI VPD page 0x80, the Unit Serial Number page. 9381 */ 9382static int 9383ctl_inquiry_evpd_serial(struct ctl_scsiio *ctsio, int alloc_len) 9384{ 9385 struct scsi_vpd_unit_serial_number *sn_ptr; 9386 struct ctl_lun *lun; 9387 int data_len; 9388 9389 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9390 9391 data_len = 4 + CTL_SN_LEN; 9392 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9393 sn_ptr = (struct scsi_vpd_unit_serial_number *)ctsio->kern_data_ptr; 9394 if (data_len < alloc_len) { 9395 ctsio->residual = alloc_len - data_len; 9396 ctsio->kern_data_len = data_len; 9397 ctsio->kern_total_len = data_len; 9398 } else { 9399 ctsio->residual = 0; 9400 ctsio->kern_data_len = alloc_len; 9401 ctsio->kern_total_len = alloc_len; 9402 } 9403 ctsio->kern_data_resid = 0; 9404 ctsio->kern_rel_offset = 0; 9405 ctsio->kern_sg_entries = 0; 9406 9407 /* 9408 * The control device is always connected. The disk device, on the 9409 * other hand, may not be online all the time. Need to change this 9410 * to figure out whether the disk device is actually online or not. 9411 */ 9412 if (lun != NULL) 9413 sn_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9414 lun->be_lun->lun_type; 9415 else 9416 sn_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9417 9418 sn_ptr->page_code = SVPD_UNIT_SERIAL_NUMBER; 9419 sn_ptr->length = CTL_SN_LEN; 9420 /* 9421 * If we don't have a LUN, we just leave the serial number as 9422 * all spaces. 9423 */ 9424 if (lun != NULL) { 9425 strncpy((char *)sn_ptr->serial_num, 9426 (char *)lun->be_lun->serial_num, CTL_SN_LEN); 9427 } else 9428 memset(sn_ptr->serial_num, 0x20, CTL_SN_LEN); 9429 9430 ctl_set_success(ctsio); 9431 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9432 ctsio->be_move_done = ctl_config_move_done; 9433 ctl_datamove((union ctl_io *)ctsio); 9434 return (CTL_RETVAL_COMPLETE); 9435} 9436 9437 9438/* 9439 * SCSI VPD page 0x86, the Extended INQUIRY Data page. 9440 */ 9441static int 9442ctl_inquiry_evpd_eid(struct ctl_scsiio *ctsio, int alloc_len) 9443{ 9444 struct scsi_vpd_extended_inquiry_data *eid_ptr; 9445 struct ctl_lun *lun; 9446 int data_len; 9447 9448 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9449 9450 data_len = sizeof(struct scsi_vpd_extended_inquiry_data); 9451 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9452 eid_ptr = (struct scsi_vpd_extended_inquiry_data *)ctsio->kern_data_ptr; 9453 ctsio->kern_sg_entries = 0; 9454 9455 if (data_len < alloc_len) { 9456 ctsio->residual = alloc_len - data_len; 9457 ctsio->kern_data_len = data_len; 9458 ctsio->kern_total_len = data_len; 9459 } else { 9460 ctsio->residual = 0; 9461 ctsio->kern_data_len = alloc_len; 9462 ctsio->kern_total_len = alloc_len; 9463 } 9464 ctsio->kern_data_resid = 0; 9465 ctsio->kern_rel_offset = 0; 9466 ctsio->kern_sg_entries = 0; 9467 9468 /* 9469 * The control device is always connected. The disk device, on the 9470 * other hand, may not be online all the time. 9471 */ 9472 if (lun != NULL) 9473 eid_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9474 lun->be_lun->lun_type; 9475 else 9476 eid_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9477 eid_ptr->page_code = SVPD_EXTENDED_INQUIRY_DATA; 9478 scsi_ulto2b(data_len - 4, eid_ptr->page_length); 9479 /* 9480 * We support head of queue, ordered and simple tags. 9481 */ 9482 eid_ptr->flags2 = SVPD_EID_HEADSUP | SVPD_EID_ORDSUP | SVPD_EID_SIMPSUP; 9483 /* 9484 * Volatile cache supported. 9485 */ 9486 eid_ptr->flags3 = SVPD_EID_V_SUP; 9487 9488 /* 9489 * This means that we clear the REPORTED LUNS DATA HAS CHANGED unit 9490 * attention for a particular IT nexus on all LUNs once we report 9491 * it to that nexus once. This bit is required as of SPC-4. 9492 */ 9493 eid_ptr->flags4 = SVPD_EID_LUICLT; 9494 9495 /* 9496 * XXX KDM in order to correctly answer this, we would need 9497 * information from the SIM to determine how much sense data it 9498 * can send. So this would really be a path inquiry field, most 9499 * likely. This can be set to a maximum of 252 according to SPC-4, 9500 * but the hardware may or may not be able to support that much. 9501 * 0 just means that the maximum sense data length is not reported. 9502 */ 9503 eid_ptr->max_sense_length = 0; 9504 9505 ctl_set_success(ctsio); 9506 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9507 ctsio->be_move_done = ctl_config_move_done; 9508 ctl_datamove((union ctl_io *)ctsio); 9509 return (CTL_RETVAL_COMPLETE); 9510} 9511 9512static int 9513ctl_inquiry_evpd_mpp(struct ctl_scsiio *ctsio, int alloc_len) 9514{ 9515 struct scsi_vpd_mode_page_policy *mpp_ptr; 9516 struct ctl_lun *lun; 9517 int data_len; 9518 9519 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9520 9521 data_len = sizeof(struct scsi_vpd_mode_page_policy) + 9522 sizeof(struct scsi_vpd_mode_page_policy_descr); 9523 9524 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9525 mpp_ptr = (struct scsi_vpd_mode_page_policy *)ctsio->kern_data_ptr; 9526 ctsio->kern_sg_entries = 0; 9527 9528 if (data_len < alloc_len) { 9529 ctsio->residual = alloc_len - data_len; 9530 ctsio->kern_data_len = data_len; 9531 ctsio->kern_total_len = data_len; 9532 } else { 9533 ctsio->residual = 0; 9534 ctsio->kern_data_len = alloc_len; 9535 ctsio->kern_total_len = alloc_len; 9536 } 9537 ctsio->kern_data_resid = 0; 9538 ctsio->kern_rel_offset = 0; 9539 ctsio->kern_sg_entries = 0; 9540 9541 /* 9542 * The control device is always connected. The disk device, on the 9543 * other hand, may not be online all the time. 9544 */ 9545 if (lun != NULL) 9546 mpp_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9547 lun->be_lun->lun_type; 9548 else 9549 mpp_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9550 mpp_ptr->page_code = SVPD_MODE_PAGE_POLICY; 9551 scsi_ulto2b(data_len - 4, mpp_ptr->page_length); 9552 mpp_ptr->descr[0].page_code = 0x3f; 9553 mpp_ptr->descr[0].subpage_code = 0xff; 9554 mpp_ptr->descr[0].policy = SVPD_MPP_SHARED; 9555 9556 ctl_set_success(ctsio); 9557 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9558 ctsio->be_move_done = ctl_config_move_done; 9559 ctl_datamove((union ctl_io *)ctsio); 9560 return (CTL_RETVAL_COMPLETE); 9561} 9562 9563/* 9564 * SCSI VPD page 0x83, the Device Identification page. 9565 */ 9566static int 9567ctl_inquiry_evpd_devid(struct ctl_scsiio *ctsio, int alloc_len) 9568{ 9569 struct scsi_vpd_device_id *devid_ptr; 9570 struct scsi_vpd_id_descriptor *desc; 9571 struct ctl_softc *softc; 9572 struct ctl_lun *lun; 9573 struct ctl_port *port; 9574 int data_len; 9575 uint8_t proto; 9576 9577 softc = control_softc; 9578 9579 port = ctl_io_port(&ctsio->io_hdr); 9580 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9581 9582 data_len = sizeof(struct scsi_vpd_device_id) + 9583 sizeof(struct scsi_vpd_id_descriptor) + 9584 sizeof(struct scsi_vpd_id_rel_trgt_port_id) + 9585 sizeof(struct scsi_vpd_id_descriptor) + 9586 sizeof(struct scsi_vpd_id_trgt_port_grp_id); 9587 if (lun && lun->lun_devid) 9588 data_len += lun->lun_devid->len; 9589 if (port && port->port_devid) 9590 data_len += port->port_devid->len; 9591 if (port && port->target_devid) 9592 data_len += port->target_devid->len; 9593 9594 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9595 devid_ptr = (struct scsi_vpd_device_id *)ctsio->kern_data_ptr; 9596 ctsio->kern_sg_entries = 0; 9597 9598 if (data_len < alloc_len) { 9599 ctsio->residual = alloc_len - data_len; 9600 ctsio->kern_data_len = data_len; 9601 ctsio->kern_total_len = data_len; 9602 } else { 9603 ctsio->residual = 0; 9604 ctsio->kern_data_len = alloc_len; 9605 ctsio->kern_total_len = alloc_len; 9606 } 9607 ctsio->kern_data_resid = 0; 9608 ctsio->kern_rel_offset = 0; 9609 ctsio->kern_sg_entries = 0; 9610 9611 /* 9612 * The control device is always connected. The disk device, on the 9613 * other hand, may not be online all the time. 9614 */ 9615 if (lun != NULL) 9616 devid_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9617 lun->be_lun->lun_type; 9618 else 9619 devid_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9620 devid_ptr->page_code = SVPD_DEVICE_ID; 9621 scsi_ulto2b(data_len - 4, devid_ptr->length); 9622 9623 if (port && port->port_type == CTL_PORT_FC) 9624 proto = SCSI_PROTO_FC << 4; 9625 else if (port && port->port_type == CTL_PORT_ISCSI) 9626 proto = SCSI_PROTO_ISCSI << 4; 9627 else 9628 proto = SCSI_PROTO_SPI << 4; 9629 desc = (struct scsi_vpd_id_descriptor *)devid_ptr->desc_list; 9630 9631 /* 9632 * We're using a LUN association here. i.e., this device ID is a 9633 * per-LUN identifier. 9634 */ 9635 if (lun && lun->lun_devid) { 9636 memcpy(desc, lun->lun_devid->data, lun->lun_devid->len); 9637 desc = (struct scsi_vpd_id_descriptor *)((uint8_t *)desc + 9638 lun->lun_devid->len); 9639 } 9640 9641 /* 9642 * This is for the WWPN which is a port association. 9643 */ 9644 if (port && port->port_devid) { 9645 memcpy(desc, port->port_devid->data, port->port_devid->len); 9646 desc = (struct scsi_vpd_id_descriptor *)((uint8_t *)desc + 9647 port->port_devid->len); 9648 } 9649 9650 /* 9651 * This is for the Relative Target Port(type 4h) identifier 9652 */ 9653 desc->proto_codeset = proto | SVPD_ID_CODESET_BINARY; 9654 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_PORT | 9655 SVPD_ID_TYPE_RELTARG; 9656 desc->length = 4; 9657 scsi_ulto2b(ctsio->io_hdr.nexus.targ_port, &desc->identifier[2]); 9658 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 9659 sizeof(struct scsi_vpd_id_rel_trgt_port_id)); 9660 9661 /* 9662 * This is for the Target Port Group(type 5h) identifier 9663 */ 9664 desc->proto_codeset = proto | SVPD_ID_CODESET_BINARY; 9665 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_PORT | 9666 SVPD_ID_TYPE_TPORTGRP; 9667 desc->length = 4; 9668 scsi_ulto2b(ctsio->io_hdr.nexus.targ_port / softc->port_cnt + 1, 9669 &desc->identifier[2]); 9670 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 9671 sizeof(struct scsi_vpd_id_trgt_port_grp_id)); 9672 9673 /* 9674 * This is for the Target identifier 9675 */ 9676 if (port && port->target_devid) { 9677 memcpy(desc, port->target_devid->data, port->target_devid->len); 9678 } 9679 9680 ctl_set_success(ctsio); 9681 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9682 ctsio->be_move_done = ctl_config_move_done; 9683 ctl_datamove((union ctl_io *)ctsio); 9684 return (CTL_RETVAL_COMPLETE); 9685} 9686 9687static int 9688ctl_inquiry_evpd_scsi_ports(struct ctl_scsiio *ctsio, int alloc_len) 9689{ 9690 struct ctl_softc *softc = control_softc; 9691 struct scsi_vpd_scsi_ports *sp; 9692 struct scsi_vpd_port_designation *pd; 9693 struct scsi_vpd_port_designation_cont *pdc; 9694 struct ctl_lun *lun; 9695 struct ctl_port *port; 9696 int data_len, num_target_ports, iid_len, id_len; 9697 9698 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9699 9700 num_target_ports = 0; 9701 iid_len = 0; 9702 id_len = 0; 9703 mtx_lock(&softc->ctl_lock); 9704 STAILQ_FOREACH(port, &softc->port_list, links) { 9705 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 9706 continue; 9707 if (lun != NULL && 9708 ctl_lun_map_to_port(port, lun->lun) >= CTL_MAX_LUNS) 9709 continue; 9710 num_target_ports++; 9711 if (port->init_devid) 9712 iid_len += port->init_devid->len; 9713 if (port->port_devid) 9714 id_len += port->port_devid->len; 9715 } 9716 mtx_unlock(&softc->ctl_lock); 9717 9718 data_len = sizeof(struct scsi_vpd_scsi_ports) + 9719 num_target_ports * (sizeof(struct scsi_vpd_port_designation) + 9720 sizeof(struct scsi_vpd_port_designation_cont)) + iid_len + id_len; 9721 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9722 sp = (struct scsi_vpd_scsi_ports *)ctsio->kern_data_ptr; 9723 ctsio->kern_sg_entries = 0; 9724 9725 if (data_len < alloc_len) { 9726 ctsio->residual = alloc_len - data_len; 9727 ctsio->kern_data_len = data_len; 9728 ctsio->kern_total_len = data_len; 9729 } else { 9730 ctsio->residual = 0; 9731 ctsio->kern_data_len = alloc_len; 9732 ctsio->kern_total_len = alloc_len; 9733 } 9734 ctsio->kern_data_resid = 0; 9735 ctsio->kern_rel_offset = 0; 9736 ctsio->kern_sg_entries = 0; 9737 9738 /* 9739 * The control device is always connected. The disk device, on the 9740 * other hand, may not be online all the time. Need to change this 9741 * to figure out whether the disk device is actually online or not. 9742 */ 9743 if (lun != NULL) 9744 sp->device = (SID_QUAL_LU_CONNECTED << 5) | 9745 lun->be_lun->lun_type; 9746 else 9747 sp->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9748 9749 sp->page_code = SVPD_SCSI_PORTS; 9750 scsi_ulto2b(data_len - sizeof(struct scsi_vpd_scsi_ports), 9751 sp->page_length); 9752 pd = &sp->design[0]; 9753 9754 mtx_lock(&softc->ctl_lock); 9755 STAILQ_FOREACH(port, &softc->port_list, links) { 9756 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 9757 continue; 9758 if (lun != NULL && 9759 ctl_lun_map_to_port(port, lun->lun) >= CTL_MAX_LUNS) 9760 continue; 9761 scsi_ulto2b(port->targ_port, pd->relative_port_id); 9762 if (port->init_devid) { 9763 iid_len = port->init_devid->len; 9764 memcpy(pd->initiator_transportid, 9765 port->init_devid->data, port->init_devid->len); 9766 } else 9767 iid_len = 0; 9768 scsi_ulto2b(iid_len, pd->initiator_transportid_length); 9769 pdc = (struct scsi_vpd_port_designation_cont *) 9770 (&pd->initiator_transportid[iid_len]); 9771 if (port->port_devid) { 9772 id_len = port->port_devid->len; 9773 memcpy(pdc->target_port_descriptors, 9774 port->port_devid->data, port->port_devid->len); 9775 } else 9776 id_len = 0; 9777 scsi_ulto2b(id_len, pdc->target_port_descriptors_length); 9778 pd = (struct scsi_vpd_port_designation *) 9779 ((uint8_t *)pdc->target_port_descriptors + id_len); 9780 } 9781 mtx_unlock(&softc->ctl_lock); 9782 9783 ctl_set_success(ctsio); 9784 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9785 ctsio->be_move_done = ctl_config_move_done; 9786 ctl_datamove((union ctl_io *)ctsio); 9787 return (CTL_RETVAL_COMPLETE); 9788} 9789 9790static int 9791ctl_inquiry_evpd_block_limits(struct ctl_scsiio *ctsio, int alloc_len) 9792{ 9793 struct scsi_vpd_block_limits *bl_ptr; 9794 struct ctl_lun *lun; 9795 int bs; 9796 9797 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9798 9799 ctsio->kern_data_ptr = malloc(sizeof(*bl_ptr), M_CTL, M_WAITOK | M_ZERO); 9800 bl_ptr = (struct scsi_vpd_block_limits *)ctsio->kern_data_ptr; 9801 ctsio->kern_sg_entries = 0; 9802 9803 if (sizeof(*bl_ptr) < alloc_len) { 9804 ctsio->residual = alloc_len - sizeof(*bl_ptr); 9805 ctsio->kern_data_len = sizeof(*bl_ptr); 9806 ctsio->kern_total_len = sizeof(*bl_ptr); 9807 } else { 9808 ctsio->residual = 0; 9809 ctsio->kern_data_len = alloc_len; 9810 ctsio->kern_total_len = alloc_len; 9811 } 9812 ctsio->kern_data_resid = 0; 9813 ctsio->kern_rel_offset = 0; 9814 ctsio->kern_sg_entries = 0; 9815 9816 /* 9817 * The control device is always connected. The disk device, on the 9818 * other hand, may not be online all the time. Need to change this 9819 * to figure out whether the disk device is actually online or not. 9820 */ 9821 if (lun != NULL) 9822 bl_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9823 lun->be_lun->lun_type; 9824 else 9825 bl_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9826 9827 bl_ptr->page_code = SVPD_BLOCK_LIMITS; 9828 scsi_ulto2b(sizeof(*bl_ptr) - 4, bl_ptr->page_length); 9829 bl_ptr->max_cmp_write_len = 0xff; 9830 scsi_ulto4b(0xffffffff, bl_ptr->max_txfer_len); 9831 if (lun != NULL) { 9832 bs = lun->be_lun->blocksize; 9833 scsi_ulto4b(lun->be_lun->opttxferlen, bl_ptr->opt_txfer_len); 9834 if (lun->be_lun->flags & CTL_LUN_FLAG_UNMAP) { 9835 scsi_ulto4b(0xffffffff, bl_ptr->max_unmap_lba_cnt); 9836 scsi_ulto4b(0xffffffff, bl_ptr->max_unmap_blk_cnt); 9837 if (lun->be_lun->ublockexp != 0) { 9838 scsi_ulto4b((1 << lun->be_lun->ublockexp), 9839 bl_ptr->opt_unmap_grain); 9840 scsi_ulto4b(0x80000000 | lun->be_lun->ublockoff, 9841 bl_ptr->unmap_grain_align); 9842 } 9843 } 9844 scsi_ulto4b(lun->be_lun->atomicblock, 9845 bl_ptr->max_atomic_transfer_length); 9846 scsi_ulto4b(0, bl_ptr->atomic_alignment); 9847 scsi_ulto4b(0, bl_ptr->atomic_transfer_length_granularity); 9848 } 9849 scsi_u64to8b(UINT64_MAX, bl_ptr->max_write_same_length); 9850 9851 ctl_set_success(ctsio); 9852 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9853 ctsio->be_move_done = ctl_config_move_done; 9854 ctl_datamove((union ctl_io *)ctsio); 9855 return (CTL_RETVAL_COMPLETE); 9856} 9857 9858static int 9859ctl_inquiry_evpd_bdc(struct ctl_scsiio *ctsio, int alloc_len) 9860{ 9861 struct scsi_vpd_block_device_characteristics *bdc_ptr; 9862 struct ctl_lun *lun; 9863 const char *value; 9864 u_int i; 9865 9866 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9867 9868 ctsio->kern_data_ptr = malloc(sizeof(*bdc_ptr), M_CTL, M_WAITOK | M_ZERO); 9869 bdc_ptr = (struct scsi_vpd_block_device_characteristics *)ctsio->kern_data_ptr; 9870 ctsio->kern_sg_entries = 0; 9871 9872 if (sizeof(*bdc_ptr) < alloc_len) { 9873 ctsio->residual = alloc_len - sizeof(*bdc_ptr); 9874 ctsio->kern_data_len = sizeof(*bdc_ptr); 9875 ctsio->kern_total_len = sizeof(*bdc_ptr); 9876 } else { 9877 ctsio->residual = 0; 9878 ctsio->kern_data_len = alloc_len; 9879 ctsio->kern_total_len = alloc_len; 9880 } 9881 ctsio->kern_data_resid = 0; 9882 ctsio->kern_rel_offset = 0; 9883 ctsio->kern_sg_entries = 0; 9884 9885 /* 9886 * The control device is always connected. The disk device, on the 9887 * other hand, may not be online all the time. Need to change this 9888 * to figure out whether the disk device is actually online or not. 9889 */ 9890 if (lun != NULL) 9891 bdc_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9892 lun->be_lun->lun_type; 9893 else 9894 bdc_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9895 bdc_ptr->page_code = SVPD_BDC; 9896 scsi_ulto2b(sizeof(*bdc_ptr) - 4, bdc_ptr->page_length); 9897 if (lun != NULL && 9898 (value = ctl_get_opt(&lun->be_lun->options, "rpm")) != NULL) 9899 i = strtol(value, NULL, 0); 9900 else 9901 i = CTL_DEFAULT_ROTATION_RATE; 9902 scsi_ulto2b(i, bdc_ptr->medium_rotation_rate); 9903 if (lun != NULL && 9904 (value = ctl_get_opt(&lun->be_lun->options, "formfactor")) != NULL) 9905 i = strtol(value, NULL, 0); 9906 else 9907 i = 0; 9908 bdc_ptr->wab_wac_ff = (i & 0x0f); 9909 bdc_ptr->flags = SVPD_FUAB | SVPD_VBULS; 9910 9911 ctl_set_success(ctsio); 9912 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9913 ctsio->be_move_done = ctl_config_move_done; 9914 ctl_datamove((union ctl_io *)ctsio); 9915 return (CTL_RETVAL_COMPLETE); 9916} 9917 9918static int 9919ctl_inquiry_evpd_lbp(struct ctl_scsiio *ctsio, int alloc_len) 9920{ 9921 struct scsi_vpd_logical_block_prov *lbp_ptr; 9922 struct ctl_lun *lun; 9923 9924 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9925 9926 ctsio->kern_data_ptr = malloc(sizeof(*lbp_ptr), M_CTL, M_WAITOK | M_ZERO); 9927 lbp_ptr = (struct scsi_vpd_logical_block_prov *)ctsio->kern_data_ptr; 9928 ctsio->kern_sg_entries = 0; 9929 9930 if (sizeof(*lbp_ptr) < alloc_len) { 9931 ctsio->residual = alloc_len - sizeof(*lbp_ptr); 9932 ctsio->kern_data_len = sizeof(*lbp_ptr); 9933 ctsio->kern_total_len = sizeof(*lbp_ptr); 9934 } else { 9935 ctsio->residual = 0; 9936 ctsio->kern_data_len = alloc_len; 9937 ctsio->kern_total_len = alloc_len; 9938 } 9939 ctsio->kern_data_resid = 0; 9940 ctsio->kern_rel_offset = 0; 9941 ctsio->kern_sg_entries = 0; 9942 9943 /* 9944 * The control device is always connected. The disk device, on the 9945 * other hand, may not be online all the time. Need to change this 9946 * to figure out whether the disk device is actually online or not. 9947 */ 9948 if (lun != NULL) 9949 lbp_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9950 lun->be_lun->lun_type; 9951 else 9952 lbp_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9953 9954 lbp_ptr->page_code = SVPD_LBP; 9955 scsi_ulto2b(sizeof(*lbp_ptr) - 4, lbp_ptr->page_length); 9956 lbp_ptr->threshold_exponent = CTL_LBP_EXPONENT; 9957 if (lun != NULL && lun->be_lun->flags & CTL_LUN_FLAG_UNMAP) { 9958 lbp_ptr->flags = SVPD_LBP_UNMAP | SVPD_LBP_WS16 | 9959 SVPD_LBP_WS10 | SVPD_LBP_RZ | SVPD_LBP_ANC_SUP; 9960 lbp_ptr->prov_type = SVPD_LBP_THIN; 9961 } 9962 9963 ctl_set_success(ctsio); 9964 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9965 ctsio->be_move_done = ctl_config_move_done; 9966 ctl_datamove((union ctl_io *)ctsio); 9967 return (CTL_RETVAL_COMPLETE); 9968} 9969 9970/* 9971 * INQUIRY with the EVPD bit set. 9972 */ 9973static int 9974ctl_inquiry_evpd(struct ctl_scsiio *ctsio) 9975{ 9976 struct ctl_lun *lun; 9977 struct scsi_inquiry *cdb; 9978 int alloc_len, retval; 9979 9980 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9981 cdb = (struct scsi_inquiry *)ctsio->cdb; 9982 alloc_len = scsi_2btoul(cdb->length); 9983 9984 switch (cdb->page_code) { 9985 case SVPD_SUPPORTED_PAGES: 9986 retval = ctl_inquiry_evpd_supported(ctsio, alloc_len); 9987 break; 9988 case SVPD_UNIT_SERIAL_NUMBER: 9989 retval = ctl_inquiry_evpd_serial(ctsio, alloc_len); 9990 break; 9991 case SVPD_DEVICE_ID: 9992 retval = ctl_inquiry_evpd_devid(ctsio, alloc_len); 9993 break; 9994 case SVPD_EXTENDED_INQUIRY_DATA: 9995 retval = ctl_inquiry_evpd_eid(ctsio, alloc_len); 9996 break; 9997 case SVPD_MODE_PAGE_POLICY: 9998 retval = ctl_inquiry_evpd_mpp(ctsio, alloc_len); 9999 break; 10000 case SVPD_SCSI_PORTS: 10001 retval = ctl_inquiry_evpd_scsi_ports(ctsio, alloc_len); 10002 break; 10003 case SVPD_SCSI_TPC: 10004 retval = ctl_inquiry_evpd_tpc(ctsio, alloc_len); 10005 break; 10006 case SVPD_BLOCK_LIMITS: 10007 if (lun == NULL || lun->be_lun->lun_type != T_DIRECT) 10008 goto err; 10009 retval = ctl_inquiry_evpd_block_limits(ctsio, alloc_len); 10010 break; 10011 case SVPD_BDC: 10012 if (lun == NULL || lun->be_lun->lun_type != T_DIRECT) 10013 goto err; 10014 retval = ctl_inquiry_evpd_bdc(ctsio, alloc_len); 10015 break; 10016 case SVPD_LBP: 10017 if (lun == NULL || lun->be_lun->lun_type != T_DIRECT) 10018 goto err; 10019 retval = ctl_inquiry_evpd_lbp(ctsio, alloc_len); 10020 break; 10021 default: 10022err: 10023 ctl_set_invalid_field(ctsio, 10024 /*sks_valid*/ 1, 10025 /*command*/ 1, 10026 /*field*/ 2, 10027 /*bit_valid*/ 0, 10028 /*bit*/ 0); 10029 ctl_done((union ctl_io *)ctsio); 10030 retval = CTL_RETVAL_COMPLETE; 10031 break; 10032 } 10033 10034 return (retval); 10035} 10036 10037/* 10038 * Standard INQUIRY data. 10039 */ 10040static int 10041ctl_inquiry_std(struct ctl_scsiio *ctsio) 10042{ 10043 struct scsi_inquiry_data *inq_ptr; 10044 struct scsi_inquiry *cdb; 10045 struct ctl_softc *softc; 10046 struct ctl_port *port; 10047 struct ctl_lun *lun; 10048 char *val; 10049 uint32_t alloc_len, data_len; 10050 ctl_port_type port_type; 10051 10052 softc = control_softc; 10053 10054 /* 10055 * Figure out whether we're talking to a Fibre Channel port or not. 10056 * We treat the ioctl front end, and any SCSI adapters, as packetized 10057 * SCSI front ends. 10058 */ 10059 port = ctl_io_port(&ctsio->io_hdr); 10060 if (port != NULL) 10061 port_type = port->port_type; 10062 else 10063 port_type = CTL_PORT_SCSI; 10064 if (port_type == CTL_PORT_IOCTL || port_type == CTL_PORT_INTERNAL) 10065 port_type = CTL_PORT_SCSI; 10066 10067 lun = ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10068 cdb = (struct scsi_inquiry *)ctsio->cdb; 10069 alloc_len = scsi_2btoul(cdb->length); 10070 10071 /* 10072 * We malloc the full inquiry data size here and fill it 10073 * in. If the user only asks for less, we'll give him 10074 * that much. 10075 */ 10076 data_len = offsetof(struct scsi_inquiry_data, vendor_specific1); 10077 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 10078 inq_ptr = (struct scsi_inquiry_data *)ctsio->kern_data_ptr; 10079 ctsio->kern_sg_entries = 0; 10080 ctsio->kern_data_resid = 0; 10081 ctsio->kern_rel_offset = 0; 10082 10083 if (data_len < alloc_len) { 10084 ctsio->residual = alloc_len - data_len; 10085 ctsio->kern_data_len = data_len; 10086 ctsio->kern_total_len = data_len; 10087 } else { 10088 ctsio->residual = 0; 10089 ctsio->kern_data_len = alloc_len; 10090 ctsio->kern_total_len = alloc_len; 10091 } 10092 10093 if (lun != NULL) { 10094 if ((lun->flags & CTL_LUN_PRIMARY_SC) || 10095 softc->ha_link >= CTL_HA_LINK_UNKNOWN) { 10096 inq_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10097 lun->be_lun->lun_type; 10098 } else { 10099 inq_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | 10100 lun->be_lun->lun_type; 10101 } 10102 } else 10103 inq_ptr->device = (SID_QUAL_BAD_LU << 5) | T_NODEVICE; 10104 10105 /* RMB in byte 2 is 0 */ 10106 inq_ptr->version = SCSI_REV_SPC4; 10107 10108 /* 10109 * According to SAM-3, even if a device only supports a single 10110 * level of LUN addressing, it should still set the HISUP bit: 10111 * 10112 * 4.9.1 Logical unit numbers overview 10113 * 10114 * All logical unit number formats described in this standard are 10115 * hierarchical in structure even when only a single level in that 10116 * hierarchy is used. The HISUP bit shall be set to one in the 10117 * standard INQUIRY data (see SPC-2) when any logical unit number 10118 * format described in this standard is used. Non-hierarchical 10119 * formats are outside the scope of this standard. 10120 * 10121 * Therefore we set the HiSup bit here. 10122 * 10123 * The reponse format is 2, per SPC-3. 10124 */ 10125 inq_ptr->response_format = SID_HiSup | 2; 10126 10127 inq_ptr->additional_length = data_len - 10128 (offsetof(struct scsi_inquiry_data, additional_length) + 1); 10129 CTL_DEBUG_PRINT(("additional_length = %d\n", 10130 inq_ptr->additional_length)); 10131 10132 inq_ptr->spc3_flags = SPC3_SID_3PC | SPC3_SID_TPGS_IMPLICIT; 10133 /* 16 bit addressing */ 10134 if (port_type == CTL_PORT_SCSI) 10135 inq_ptr->spc2_flags = SPC2_SID_ADDR16; 10136 /* XXX set the SID_MultiP bit here if we're actually going to 10137 respond on multiple ports */ 10138 inq_ptr->spc2_flags |= SPC2_SID_MultiP; 10139 10140 /* 16 bit data bus, synchronous transfers */ 10141 if (port_type == CTL_PORT_SCSI) 10142 inq_ptr->flags = SID_WBus16 | SID_Sync; 10143 /* 10144 * XXX KDM do we want to support tagged queueing on the control 10145 * device at all? 10146 */ 10147 if ((lun == NULL) 10148 || (lun->be_lun->lun_type != T_PROCESSOR)) 10149 inq_ptr->flags |= SID_CmdQue; 10150 /* 10151 * Per SPC-3, unused bytes in ASCII strings are filled with spaces. 10152 * We have 8 bytes for the vendor name, and 16 bytes for the device 10153 * name and 4 bytes for the revision. 10154 */ 10155 if (lun == NULL || (val = ctl_get_opt(&lun->be_lun->options, 10156 "vendor")) == NULL) { 10157 strncpy(inq_ptr->vendor, CTL_VENDOR, sizeof(inq_ptr->vendor)); 10158 } else { 10159 memset(inq_ptr->vendor, ' ', sizeof(inq_ptr->vendor)); 10160 strncpy(inq_ptr->vendor, val, 10161 min(sizeof(inq_ptr->vendor), strlen(val))); 10162 } 10163 if (lun == NULL) { 10164 strncpy(inq_ptr->product, CTL_DIRECT_PRODUCT, 10165 sizeof(inq_ptr->product)); 10166 } else if ((val = ctl_get_opt(&lun->be_lun->options, "product")) == NULL) { 10167 switch (lun->be_lun->lun_type) { 10168 case T_DIRECT: 10169 strncpy(inq_ptr->product, CTL_DIRECT_PRODUCT, 10170 sizeof(inq_ptr->product)); 10171 break; 10172 case T_PROCESSOR: 10173 strncpy(inq_ptr->product, CTL_PROCESSOR_PRODUCT, 10174 sizeof(inq_ptr->product)); 10175 break; 10176 default: 10177 strncpy(inq_ptr->product, CTL_UNKNOWN_PRODUCT, 10178 sizeof(inq_ptr->product)); 10179 break; 10180 } 10181 } else { 10182 memset(inq_ptr->product, ' ', sizeof(inq_ptr->product)); 10183 strncpy(inq_ptr->product, val, 10184 min(sizeof(inq_ptr->product), strlen(val))); 10185 } 10186 10187 /* 10188 * XXX make this a macro somewhere so it automatically gets 10189 * incremented when we make changes. 10190 */ 10191 if (lun == NULL || (val = ctl_get_opt(&lun->be_lun->options, 10192 "revision")) == NULL) { 10193 strncpy(inq_ptr->revision, "0001", sizeof(inq_ptr->revision)); 10194 } else { 10195 memset(inq_ptr->revision, ' ', sizeof(inq_ptr->revision)); 10196 strncpy(inq_ptr->revision, val, 10197 min(sizeof(inq_ptr->revision), strlen(val))); 10198 } 10199 10200 /* 10201 * For parallel SCSI, we support double transition and single 10202 * transition clocking. We also support QAS (Quick Arbitration 10203 * and Selection) and Information Unit transfers on both the 10204 * control and array devices. 10205 */ 10206 if (port_type == CTL_PORT_SCSI) 10207 inq_ptr->spi3data = SID_SPI_CLOCK_DT_ST | SID_SPI_QAS | 10208 SID_SPI_IUS; 10209 10210 /* SAM-5 (no version claimed) */ 10211 scsi_ulto2b(0x00A0, inq_ptr->version1); 10212 /* SPC-4 (no version claimed) */ 10213 scsi_ulto2b(0x0460, inq_ptr->version2); 10214 if (port_type == CTL_PORT_FC) { 10215 /* FCP-2 ANSI INCITS.350:2003 */ 10216 scsi_ulto2b(0x0917, inq_ptr->version3); 10217 } else if (port_type == CTL_PORT_SCSI) { 10218 /* SPI-4 ANSI INCITS.362:200x */ 10219 scsi_ulto2b(0x0B56, inq_ptr->version3); 10220 } else if (port_type == CTL_PORT_ISCSI) { 10221 /* iSCSI (no version claimed) */ 10222 scsi_ulto2b(0x0960, inq_ptr->version3); 10223 } else if (port_type == CTL_PORT_SAS) { 10224 /* SAS (no version claimed) */ 10225 scsi_ulto2b(0x0BE0, inq_ptr->version3); 10226 } 10227 10228 if (lun == NULL) { 10229 /* SBC-4 (no version claimed) */ 10230 scsi_ulto2b(0x0600, inq_ptr->version4); 10231 } else { 10232 switch (lun->be_lun->lun_type) { 10233 case T_DIRECT: 10234 /* SBC-4 (no version claimed) */ 10235 scsi_ulto2b(0x0600, inq_ptr->version4); 10236 break; 10237 case T_PROCESSOR: 10238 default: 10239 break; 10240 } 10241 } 10242 10243 ctl_set_success(ctsio); 10244 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10245 ctsio->be_move_done = ctl_config_move_done; 10246 ctl_datamove((union ctl_io *)ctsio); 10247 return (CTL_RETVAL_COMPLETE); 10248} 10249 10250int 10251ctl_inquiry(struct ctl_scsiio *ctsio) 10252{ 10253 struct scsi_inquiry *cdb; 10254 int retval; 10255 10256 CTL_DEBUG_PRINT(("ctl_inquiry\n")); 10257 10258 cdb = (struct scsi_inquiry *)ctsio->cdb; 10259 if (cdb->byte2 & SI_EVPD) 10260 retval = ctl_inquiry_evpd(ctsio); 10261 else if (cdb->page_code == 0) 10262 retval = ctl_inquiry_std(ctsio); 10263 else { 10264 ctl_set_invalid_field(ctsio, 10265 /*sks_valid*/ 1, 10266 /*command*/ 1, 10267 /*field*/ 2, 10268 /*bit_valid*/ 0, 10269 /*bit*/ 0); 10270 ctl_done((union ctl_io *)ctsio); 10271 return (CTL_RETVAL_COMPLETE); 10272 } 10273 10274 return (retval); 10275} 10276 10277/* 10278 * For known CDB types, parse the LBA and length. 10279 */ 10280static int 10281ctl_get_lba_len(union ctl_io *io, uint64_t *lba, uint64_t *len) 10282{ 10283 if (io->io_hdr.io_type != CTL_IO_SCSI) 10284 return (1); 10285 10286 switch (io->scsiio.cdb[0]) { 10287 case COMPARE_AND_WRITE: { 10288 struct scsi_compare_and_write *cdb; 10289 10290 cdb = (struct scsi_compare_and_write *)io->scsiio.cdb; 10291 10292 *lba = scsi_8btou64(cdb->addr); 10293 *len = cdb->length; 10294 break; 10295 } 10296 case READ_6: 10297 case WRITE_6: { 10298 struct scsi_rw_6 *cdb; 10299 10300 cdb = (struct scsi_rw_6 *)io->scsiio.cdb; 10301 10302 *lba = scsi_3btoul(cdb->addr); 10303 /* only 5 bits are valid in the most significant address byte */ 10304 *lba &= 0x1fffff; 10305 *len = cdb->length; 10306 break; 10307 } 10308 case READ_10: 10309 case WRITE_10: { 10310 struct scsi_rw_10 *cdb; 10311 10312 cdb = (struct scsi_rw_10 *)io->scsiio.cdb; 10313 10314 *lba = scsi_4btoul(cdb->addr); 10315 *len = scsi_2btoul(cdb->length); 10316 break; 10317 } 10318 case WRITE_VERIFY_10: { 10319 struct scsi_write_verify_10 *cdb; 10320 10321 cdb = (struct scsi_write_verify_10 *)io->scsiio.cdb; 10322 10323 *lba = scsi_4btoul(cdb->addr); 10324 *len = scsi_2btoul(cdb->length); 10325 break; 10326 } 10327 case READ_12: 10328 case WRITE_12: { 10329 struct scsi_rw_12 *cdb; 10330 10331 cdb = (struct scsi_rw_12 *)io->scsiio.cdb; 10332 10333 *lba = scsi_4btoul(cdb->addr); 10334 *len = scsi_4btoul(cdb->length); 10335 break; 10336 } 10337 case WRITE_VERIFY_12: { 10338 struct scsi_write_verify_12 *cdb; 10339 10340 cdb = (struct scsi_write_verify_12 *)io->scsiio.cdb; 10341 10342 *lba = scsi_4btoul(cdb->addr); 10343 *len = scsi_4btoul(cdb->length); 10344 break; 10345 } 10346 case READ_16: 10347 case WRITE_16: 10348 case WRITE_ATOMIC_16: { 10349 struct scsi_rw_16 *cdb; 10350 10351 cdb = (struct scsi_rw_16 *)io->scsiio.cdb; 10352 10353 *lba = scsi_8btou64(cdb->addr); 10354 *len = scsi_4btoul(cdb->length); 10355 break; 10356 } 10357 case WRITE_VERIFY_16: { 10358 struct scsi_write_verify_16 *cdb; 10359 10360 cdb = (struct scsi_write_verify_16 *)io->scsiio.cdb; 10361 10362 *lba = scsi_8btou64(cdb->addr); 10363 *len = scsi_4btoul(cdb->length); 10364 break; 10365 } 10366 case WRITE_SAME_10: { 10367 struct scsi_write_same_10 *cdb; 10368 10369 cdb = (struct scsi_write_same_10 *)io->scsiio.cdb; 10370 10371 *lba = scsi_4btoul(cdb->addr); 10372 *len = scsi_2btoul(cdb->length); 10373 break; 10374 } 10375 case WRITE_SAME_16: { 10376 struct scsi_write_same_16 *cdb; 10377 10378 cdb = (struct scsi_write_same_16 *)io->scsiio.cdb; 10379 10380 *lba = scsi_8btou64(cdb->addr); 10381 *len = scsi_4btoul(cdb->length); 10382 break; 10383 } 10384 case VERIFY_10: { 10385 struct scsi_verify_10 *cdb; 10386 10387 cdb = (struct scsi_verify_10 *)io->scsiio.cdb; 10388 10389 *lba = scsi_4btoul(cdb->addr); 10390 *len = scsi_2btoul(cdb->length); 10391 break; 10392 } 10393 case VERIFY_12: { 10394 struct scsi_verify_12 *cdb; 10395 10396 cdb = (struct scsi_verify_12 *)io->scsiio.cdb; 10397 10398 *lba = scsi_4btoul(cdb->addr); 10399 *len = scsi_4btoul(cdb->length); 10400 break; 10401 } 10402 case VERIFY_16: { 10403 struct scsi_verify_16 *cdb; 10404 10405 cdb = (struct scsi_verify_16 *)io->scsiio.cdb; 10406 10407 *lba = scsi_8btou64(cdb->addr); 10408 *len = scsi_4btoul(cdb->length); 10409 break; 10410 } 10411 case UNMAP: { 10412 *lba = 0; 10413 *len = UINT64_MAX; 10414 break; 10415 } 10416 case SERVICE_ACTION_IN: { /* GET LBA STATUS */ 10417 struct scsi_get_lba_status *cdb; 10418 10419 cdb = (struct scsi_get_lba_status *)io->scsiio.cdb; 10420 *lba = scsi_8btou64(cdb->addr); 10421 *len = UINT32_MAX; 10422 break; 10423 } 10424 default: 10425 return (1); 10426 break; /* NOTREACHED */ 10427 } 10428 10429 return (0); 10430} 10431 10432static ctl_action 10433ctl_extent_check_lba(uint64_t lba1, uint64_t len1, uint64_t lba2, uint64_t len2, 10434 bool seq) 10435{ 10436 uint64_t endlba1, endlba2; 10437 10438 endlba1 = lba1 + len1 - (seq ? 0 : 1); 10439 endlba2 = lba2 + len2 - 1; 10440 10441 if ((endlba1 < lba2) || (endlba2 < lba1)) 10442 return (CTL_ACTION_PASS); 10443 else 10444 return (CTL_ACTION_BLOCK); 10445} 10446 10447static int 10448ctl_extent_check_unmap(union ctl_io *io, uint64_t lba2, uint64_t len2) 10449{ 10450 struct ctl_ptr_len_flags *ptrlen; 10451 struct scsi_unmap_desc *buf, *end, *range; 10452 uint64_t lba; 10453 uint32_t len; 10454 10455 /* If not UNMAP -- go other way. */ 10456 if (io->io_hdr.io_type != CTL_IO_SCSI || 10457 io->scsiio.cdb[0] != UNMAP) 10458 return (CTL_ACTION_ERROR); 10459 10460 /* If UNMAP without data -- block and wait for data. */ 10461 ptrlen = (struct ctl_ptr_len_flags *) 10462 &io->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 10463 if ((io->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0 || 10464 ptrlen->ptr == NULL) 10465 return (CTL_ACTION_BLOCK); 10466 10467 /* UNMAP with data -- check for collision. */ 10468 buf = (struct scsi_unmap_desc *)ptrlen->ptr; 10469 end = buf + ptrlen->len / sizeof(*buf); 10470 for (range = buf; range < end; range++) { 10471 lba = scsi_8btou64(range->lba); 10472 len = scsi_4btoul(range->length); 10473 if ((lba < lba2 + len2) && (lba + len > lba2)) 10474 return (CTL_ACTION_BLOCK); 10475 } 10476 return (CTL_ACTION_PASS); 10477} 10478 10479static ctl_action 10480ctl_extent_check(union ctl_io *io1, union ctl_io *io2, bool seq) 10481{ 10482 uint64_t lba1, lba2; 10483 uint64_t len1, len2; 10484 int retval; 10485 10486 if (ctl_get_lba_len(io2, &lba2, &len2) != 0) 10487 return (CTL_ACTION_ERROR); 10488 10489 retval = ctl_extent_check_unmap(io1, lba2, len2); 10490 if (retval != CTL_ACTION_ERROR) 10491 return (retval); 10492 10493 if (ctl_get_lba_len(io1, &lba1, &len1) != 0) 10494 return (CTL_ACTION_ERROR); 10495 10496 return (ctl_extent_check_lba(lba1, len1, lba2, len2, seq)); 10497} 10498 10499static ctl_action 10500ctl_extent_check_seq(union ctl_io *io1, union ctl_io *io2) 10501{ 10502 uint64_t lba1, lba2; 10503 uint64_t len1, len2; 10504 10505 if (ctl_get_lba_len(io1, &lba1, &len1) != 0) 10506 return (CTL_ACTION_ERROR); 10507 if (ctl_get_lba_len(io2, &lba2, &len2) != 0) 10508 return (CTL_ACTION_ERROR); 10509 10510 if (lba1 + len1 == lba2) 10511 return (CTL_ACTION_BLOCK); 10512 return (CTL_ACTION_PASS); 10513} 10514 10515static ctl_action 10516ctl_check_for_blockage(struct ctl_lun *lun, union ctl_io *pending_io, 10517 union ctl_io *ooa_io) 10518{ 10519 const struct ctl_cmd_entry *pending_entry, *ooa_entry; 10520 ctl_serialize_action *serialize_row; 10521 10522 /* 10523 * The initiator attempted multiple untagged commands at the same 10524 * time. Can't do that. 10525 */ 10526 if ((pending_io->scsiio.tag_type == CTL_TAG_UNTAGGED) 10527 && (ooa_io->scsiio.tag_type == CTL_TAG_UNTAGGED) 10528 && ((pending_io->io_hdr.nexus.targ_port == 10529 ooa_io->io_hdr.nexus.targ_port) 10530 && (pending_io->io_hdr.nexus.initid == 10531 ooa_io->io_hdr.nexus.initid)) 10532 && ((ooa_io->io_hdr.flags & (CTL_FLAG_ABORT | 10533 CTL_FLAG_STATUS_SENT)) == 0)) 10534 return (CTL_ACTION_OVERLAP); 10535 10536 /* 10537 * The initiator attempted to send multiple tagged commands with 10538 * the same ID. (It's fine if different initiators have the same 10539 * tag ID.) 10540 * 10541 * Even if all of those conditions are true, we don't kill the I/O 10542 * if the command ahead of us has been aborted. We won't end up 10543 * sending it to the FETD, and it's perfectly legal to resend a 10544 * command with the same tag number as long as the previous 10545 * instance of this tag number has been aborted somehow. 10546 */ 10547 if ((pending_io->scsiio.tag_type != CTL_TAG_UNTAGGED) 10548 && (ooa_io->scsiio.tag_type != CTL_TAG_UNTAGGED) 10549 && (pending_io->scsiio.tag_num == ooa_io->scsiio.tag_num) 10550 && ((pending_io->io_hdr.nexus.targ_port == 10551 ooa_io->io_hdr.nexus.targ_port) 10552 && (pending_io->io_hdr.nexus.initid == 10553 ooa_io->io_hdr.nexus.initid)) 10554 && ((ooa_io->io_hdr.flags & (CTL_FLAG_ABORT | 10555 CTL_FLAG_STATUS_SENT)) == 0)) 10556 return (CTL_ACTION_OVERLAP_TAG); 10557 10558 /* 10559 * If we get a head of queue tag, SAM-3 says that we should 10560 * immediately execute it. 10561 * 10562 * What happens if this command would normally block for some other 10563 * reason? e.g. a request sense with a head of queue tag 10564 * immediately after a write. Normally that would block, but this 10565 * will result in its getting executed immediately... 10566 * 10567 * We currently return "pass" instead of "skip", so we'll end up 10568 * going through the rest of the queue to check for overlapped tags. 10569 * 10570 * XXX KDM check for other types of blockage first?? 10571 */ 10572 if (pending_io->scsiio.tag_type == CTL_TAG_HEAD_OF_QUEUE) 10573 return (CTL_ACTION_PASS); 10574 10575 /* 10576 * Ordered tags have to block until all items ahead of them 10577 * have completed. If we get called with an ordered tag, we always 10578 * block, if something else is ahead of us in the queue. 10579 */ 10580 if (pending_io->scsiio.tag_type == CTL_TAG_ORDERED) 10581 return (CTL_ACTION_BLOCK); 10582 10583 /* 10584 * Simple tags get blocked until all head of queue and ordered tags 10585 * ahead of them have completed. I'm lumping untagged commands in 10586 * with simple tags here. XXX KDM is that the right thing to do? 10587 */ 10588 if (((pending_io->scsiio.tag_type == CTL_TAG_UNTAGGED) 10589 || (pending_io->scsiio.tag_type == CTL_TAG_SIMPLE)) 10590 && ((ooa_io->scsiio.tag_type == CTL_TAG_HEAD_OF_QUEUE) 10591 || (ooa_io->scsiio.tag_type == CTL_TAG_ORDERED))) 10592 return (CTL_ACTION_BLOCK); 10593 10594 pending_entry = ctl_get_cmd_entry(&pending_io->scsiio, NULL); 10595 ooa_entry = ctl_get_cmd_entry(&ooa_io->scsiio, NULL); 10596 10597 serialize_row = ctl_serialize_table[ooa_entry->seridx]; 10598 10599 switch (serialize_row[pending_entry->seridx]) { 10600 case CTL_SER_BLOCK: 10601 return (CTL_ACTION_BLOCK); 10602 case CTL_SER_EXTENT: 10603 return (ctl_extent_check(ooa_io, pending_io, 10604 (lun->be_lun && lun->be_lun->serseq == CTL_LUN_SERSEQ_ON))); 10605 case CTL_SER_EXTENTOPT: 10606 if ((lun->mode_pages.control_page[CTL_PAGE_CURRENT].queue_flags 10607 & SCP_QUEUE_ALG_MASK) != SCP_QUEUE_ALG_UNRESTRICTED) 10608 return (ctl_extent_check(ooa_io, pending_io, 10609 (lun->be_lun && 10610 lun->be_lun->serseq == CTL_LUN_SERSEQ_ON))); 10611 return (CTL_ACTION_PASS); 10612 case CTL_SER_EXTENTSEQ: 10613 if (lun->be_lun && lun->be_lun->serseq != CTL_LUN_SERSEQ_OFF) 10614 return (ctl_extent_check_seq(ooa_io, pending_io)); 10615 return (CTL_ACTION_PASS); 10616 case CTL_SER_PASS: 10617 return (CTL_ACTION_PASS); 10618 case CTL_SER_BLOCKOPT: 10619 if ((lun->mode_pages.control_page[CTL_PAGE_CURRENT].queue_flags 10620 & SCP_QUEUE_ALG_MASK) != SCP_QUEUE_ALG_UNRESTRICTED) 10621 return (CTL_ACTION_BLOCK); 10622 return (CTL_ACTION_PASS); 10623 case CTL_SER_SKIP: 10624 return (CTL_ACTION_SKIP); 10625 default: 10626 panic("invalid serialization value %d", 10627 serialize_row[pending_entry->seridx]); 10628 } 10629 10630 return (CTL_ACTION_ERROR); 10631} 10632 10633/* 10634 * Check for blockage or overlaps against the OOA (Order Of Arrival) queue. 10635 * Assumptions: 10636 * - pending_io is generally either incoming, or on the blocked queue 10637 * - starting I/O is the I/O we want to start the check with. 10638 */ 10639static ctl_action 10640ctl_check_ooa(struct ctl_lun *lun, union ctl_io *pending_io, 10641 union ctl_io *starting_io) 10642{ 10643 union ctl_io *ooa_io; 10644 ctl_action action; 10645 10646 mtx_assert(&lun->lun_lock, MA_OWNED); 10647 10648 /* 10649 * Run back along the OOA queue, starting with the current 10650 * blocked I/O and going through every I/O before it on the 10651 * queue. If starting_io is NULL, we'll just end up returning 10652 * CTL_ACTION_PASS. 10653 */ 10654 for (ooa_io = starting_io; ooa_io != NULL; 10655 ooa_io = (union ctl_io *)TAILQ_PREV(&ooa_io->io_hdr, ctl_ooaq, 10656 ooa_links)){ 10657 10658 /* 10659 * This routine just checks to see whether 10660 * cur_blocked is blocked by ooa_io, which is ahead 10661 * of it in the queue. It doesn't queue/dequeue 10662 * cur_blocked. 10663 */ 10664 action = ctl_check_for_blockage(lun, pending_io, ooa_io); 10665 switch (action) { 10666 case CTL_ACTION_BLOCK: 10667 case CTL_ACTION_OVERLAP: 10668 case CTL_ACTION_OVERLAP_TAG: 10669 case CTL_ACTION_SKIP: 10670 case CTL_ACTION_ERROR: 10671 return (action); 10672 break; /* NOTREACHED */ 10673 case CTL_ACTION_PASS: 10674 break; 10675 default: 10676 panic("invalid action %d", action); 10677 break; /* NOTREACHED */ 10678 } 10679 } 10680 10681 return (CTL_ACTION_PASS); 10682} 10683 10684/* 10685 * Assumptions: 10686 * - An I/O has just completed, and has been removed from the per-LUN OOA 10687 * queue, so some items on the blocked queue may now be unblocked. 10688 */ 10689static int 10690ctl_check_blocked(struct ctl_lun *lun) 10691{ 10692 struct ctl_softc *softc = lun->ctl_softc; 10693 union ctl_io *cur_blocked, *next_blocked; 10694 10695 mtx_assert(&lun->lun_lock, MA_OWNED); 10696 10697 /* 10698 * Run forward from the head of the blocked queue, checking each 10699 * entry against the I/Os prior to it on the OOA queue to see if 10700 * there is still any blockage. 10701 * 10702 * We cannot use the TAILQ_FOREACH() macro, because it can't deal 10703 * with our removing a variable on it while it is traversing the 10704 * list. 10705 */ 10706 for (cur_blocked = (union ctl_io *)TAILQ_FIRST(&lun->blocked_queue); 10707 cur_blocked != NULL; cur_blocked = next_blocked) { 10708 union ctl_io *prev_ooa; 10709 ctl_action action; 10710 10711 next_blocked = (union ctl_io *)TAILQ_NEXT(&cur_blocked->io_hdr, 10712 blocked_links); 10713 10714 prev_ooa = (union ctl_io *)TAILQ_PREV(&cur_blocked->io_hdr, 10715 ctl_ooaq, ooa_links); 10716 10717 /* 10718 * If cur_blocked happens to be the first item in the OOA 10719 * queue now, prev_ooa will be NULL, and the action 10720 * returned will just be CTL_ACTION_PASS. 10721 */ 10722 action = ctl_check_ooa(lun, cur_blocked, prev_ooa); 10723 10724 switch (action) { 10725 case CTL_ACTION_BLOCK: 10726 /* Nothing to do here, still blocked */ 10727 break; 10728 case CTL_ACTION_OVERLAP: 10729 case CTL_ACTION_OVERLAP_TAG: 10730 /* 10731 * This shouldn't happen! In theory we've already 10732 * checked this command for overlap... 10733 */ 10734 break; 10735 case CTL_ACTION_PASS: 10736 case CTL_ACTION_SKIP: { 10737 const struct ctl_cmd_entry *entry; 10738 10739 /* 10740 * The skip case shouldn't happen, this transaction 10741 * should have never made it onto the blocked queue. 10742 */ 10743 /* 10744 * This I/O is no longer blocked, we can remove it 10745 * from the blocked queue. Since this is a TAILQ 10746 * (doubly linked list), we can do O(1) removals 10747 * from any place on the list. 10748 */ 10749 TAILQ_REMOVE(&lun->blocked_queue, &cur_blocked->io_hdr, 10750 blocked_links); 10751 cur_blocked->io_hdr.flags &= ~CTL_FLAG_BLOCKED; 10752 10753 if ((softc->ha_mode != CTL_HA_MODE_XFER) && 10754 (cur_blocked->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)){ 10755 /* 10756 * Need to send IO back to original side to 10757 * run 10758 */ 10759 union ctl_ha_msg msg_info; 10760 10761 cur_blocked->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 10762 msg_info.hdr.original_sc = 10763 cur_blocked->io_hdr.original_sc; 10764 msg_info.hdr.serializing_sc = cur_blocked; 10765 msg_info.hdr.msg_type = CTL_MSG_R2R; 10766 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 10767 sizeof(msg_info.hdr), M_NOWAIT); 10768 break; 10769 } 10770 entry = ctl_get_cmd_entry(&cur_blocked->scsiio, NULL); 10771 10772 /* 10773 * Check this I/O for LUN state changes that may 10774 * have happened while this command was blocked. 10775 * The LUN state may have been changed by a command 10776 * ahead of us in the queue, so we need to re-check 10777 * for any states that can be caused by SCSI 10778 * commands. 10779 */ 10780 if (ctl_scsiio_lun_check(lun, entry, 10781 &cur_blocked->scsiio) == 0) { 10782 cur_blocked->io_hdr.flags |= 10783 CTL_FLAG_IS_WAS_ON_RTR; 10784 ctl_enqueue_rtr(cur_blocked); 10785 } else 10786 ctl_done(cur_blocked); 10787 break; 10788 } 10789 default: 10790 /* 10791 * This probably shouldn't happen -- we shouldn't 10792 * get CTL_ACTION_ERROR, or anything else. 10793 */ 10794 break; 10795 } 10796 } 10797 10798 return (CTL_RETVAL_COMPLETE); 10799} 10800 10801/* 10802 * This routine (with one exception) checks LUN flags that can be set by 10803 * commands ahead of us in the OOA queue. These flags have to be checked 10804 * when a command initially comes in, and when we pull a command off the 10805 * blocked queue and are preparing to execute it. The reason we have to 10806 * check these flags for commands on the blocked queue is that the LUN 10807 * state may have been changed by a command ahead of us while we're on the 10808 * blocked queue. 10809 * 10810 * Ordering is somewhat important with these checks, so please pay 10811 * careful attention to the placement of any new checks. 10812 */ 10813static int 10814ctl_scsiio_lun_check(struct ctl_lun *lun, 10815 const struct ctl_cmd_entry *entry, struct ctl_scsiio *ctsio) 10816{ 10817 struct ctl_softc *softc = lun->ctl_softc; 10818 int retval; 10819 uint32_t residx; 10820 10821 retval = 0; 10822 10823 mtx_assert(&lun->lun_lock, MA_OWNED); 10824 10825 /* 10826 * If this shelf is a secondary shelf controller, we may have to 10827 * reject some commands disallowed by HA mode and link state. 10828 */ 10829 if ((lun->flags & CTL_LUN_PRIMARY_SC) == 0) { 10830 if (softc->ha_link == CTL_HA_LINK_OFFLINE && 10831 (entry->flags & CTL_CMD_FLAG_OK_ON_UNAVAIL) == 0) { 10832 ctl_set_lun_unavail(ctsio); 10833 retval = 1; 10834 goto bailout; 10835 } 10836 if ((lun->flags & CTL_LUN_PEER_SC_PRIMARY) == 0 && 10837 (entry->flags & CTL_CMD_FLAG_OK_ON_UNAVAIL) == 0) { 10838 ctl_set_lun_transit(ctsio); 10839 retval = 1; 10840 goto bailout; 10841 } 10842 if (softc->ha_mode == CTL_HA_MODE_ACT_STBY && 10843 (entry->flags & CTL_CMD_FLAG_OK_ON_STANDBY) == 0) { 10844 ctl_set_lun_standby(ctsio); 10845 retval = 1; 10846 goto bailout; 10847 } 10848 10849 /* The rest of checks are only done on executing side */ 10850 if (softc->ha_mode == CTL_HA_MODE_XFER) 10851 goto bailout; 10852 } 10853 10854 if (entry->pattern & CTL_LUN_PAT_WRITE) { 10855 if (lun->be_lun && 10856 lun->be_lun->flags & CTL_LUN_FLAG_READONLY) { 10857 ctl_set_hw_write_protected(ctsio); 10858 retval = 1; 10859 goto bailout; 10860 } 10861 if ((lun->mode_pages.control_page[CTL_PAGE_CURRENT] 10862 .eca_and_aen & SCP_SWP) != 0) { 10863 ctl_set_sense(ctsio, /*current_error*/ 1, 10864 /*sense_key*/ SSD_KEY_DATA_PROTECT, 10865 /*asc*/ 0x27, /*ascq*/ 0x02, SSD_ELEM_NONE); 10866 retval = 1; 10867 goto bailout; 10868 } 10869 } 10870 10871 /* 10872 * Check for a reservation conflict. If this command isn't allowed 10873 * even on reserved LUNs, and if this initiator isn't the one who 10874 * reserved us, reject the command with a reservation conflict. 10875 */ 10876 residx = ctl_get_initindex(&ctsio->io_hdr.nexus); 10877 if ((lun->flags & CTL_LUN_RESERVED) 10878 && ((entry->flags & CTL_CMD_FLAG_ALLOW_ON_RESV) == 0)) { 10879 if (lun->res_idx != residx) { 10880 ctl_set_reservation_conflict(ctsio); 10881 retval = 1; 10882 goto bailout; 10883 } 10884 } 10885 10886 if ((lun->flags & CTL_LUN_PR_RESERVED) == 0 || 10887 (entry->flags & CTL_CMD_FLAG_ALLOW_ON_PR_RESV)) { 10888 /* No reservation or command is allowed. */; 10889 } else if ((entry->flags & CTL_CMD_FLAG_ALLOW_ON_PR_WRESV) && 10890 (lun->res_type == SPR_TYPE_WR_EX || 10891 lun->res_type == SPR_TYPE_WR_EX_RO || 10892 lun->res_type == SPR_TYPE_WR_EX_AR)) { 10893 /* The command is allowed for Write Exclusive resv. */; 10894 } else { 10895 /* 10896 * if we aren't registered or it's a res holder type 10897 * reservation and this isn't the res holder then set a 10898 * conflict. 10899 */ 10900 if (ctl_get_prkey(lun, residx) == 0 10901 || (residx != lun->pr_res_idx && lun->res_type < 4)) { 10902 ctl_set_reservation_conflict(ctsio); 10903 retval = 1; 10904 goto bailout; 10905 } 10906 } 10907 10908 if ((lun->flags & CTL_LUN_OFFLINE) 10909 && ((entry->flags & CTL_CMD_FLAG_OK_ON_STANDBY) == 0)) { 10910 ctl_set_lun_not_ready(ctsio); 10911 retval = 1; 10912 goto bailout; 10913 } 10914 10915 if ((lun->flags & CTL_LUN_STOPPED) 10916 && ((entry->flags & CTL_CMD_FLAG_OK_ON_STOPPED) == 0)) { 10917 /* "Logical unit not ready, initializing cmd. required" */ 10918 ctl_set_lun_stopped(ctsio); 10919 retval = 1; 10920 goto bailout; 10921 } 10922 10923 if ((lun->flags & CTL_LUN_INOPERABLE) 10924 && ((entry->flags & CTL_CMD_FLAG_OK_ON_INOPERABLE) == 0)) { 10925 /* "Medium format corrupted" */ 10926 ctl_set_medium_format_corrupted(ctsio); 10927 retval = 1; 10928 goto bailout; 10929 } 10930 10931bailout: 10932 return (retval); 10933} 10934 10935static void 10936ctl_failover_io(union ctl_io *io, int have_lock) 10937{ 10938 ctl_set_busy(&io->scsiio); 10939 ctl_done(io); 10940} 10941 10942static void 10943ctl_failover_lun(struct ctl_lun *lun) 10944{ 10945 struct ctl_softc *softc = lun->ctl_softc; 10946 struct ctl_io_hdr *io, *next_io; 10947 10948 CTL_DEBUG_PRINT(("FAILOVER for lun %ju\n", lun->lun)); 10949 if (softc->ha_mode == CTL_HA_MODE_XFER) { 10950 TAILQ_FOREACH_SAFE(io, &lun->ooa_queue, ooa_links, next_io) { 10951 /* We are master */ 10952 if (io->flags & CTL_FLAG_FROM_OTHER_SC) { 10953 if (io->flags & CTL_FLAG_IO_ACTIVE) { 10954 io->flags |= CTL_FLAG_ABORT; 10955 io->flags |= CTL_FLAG_FAILOVER; 10956 } else { /* This can be only due to DATAMOVE */ 10957 io->msg_type = CTL_MSG_DATAMOVE_DONE; 10958 io->flags |= CTL_FLAG_IO_ACTIVE; 10959 io->port_status = 31340; 10960 ctl_enqueue_isc((union ctl_io *)io); 10961 } 10962 } 10963 /* We are slave */ 10964 if (io->flags & CTL_FLAG_SENT_2OTHER_SC) { 10965 io->flags &= ~CTL_FLAG_SENT_2OTHER_SC; 10966 if (io->flags & CTL_FLAG_IO_ACTIVE) { 10967 io->flags |= CTL_FLAG_FAILOVER; 10968 } else { 10969 ctl_set_busy(&((union ctl_io *)io)-> 10970 scsiio); 10971 ctl_done((union ctl_io *)io); 10972 } 10973 } 10974 } 10975 } else { /* SERIALIZE modes */ 10976 TAILQ_FOREACH_SAFE(io, &lun->blocked_queue, blocked_links, 10977 next_io) { 10978 /* We are master */ 10979 if (io->flags & CTL_FLAG_FROM_OTHER_SC) { 10980 TAILQ_REMOVE(&lun->blocked_queue, io, 10981 blocked_links); 10982 io->flags &= ~CTL_FLAG_BLOCKED; 10983 TAILQ_REMOVE(&lun->ooa_queue, io, ooa_links); 10984 ctl_free_io((union ctl_io *)io); 10985 } 10986 } 10987 TAILQ_FOREACH_SAFE(io, &lun->ooa_queue, ooa_links, next_io) { 10988 /* We are master */ 10989 if (io->flags & CTL_FLAG_FROM_OTHER_SC) { 10990 TAILQ_REMOVE(&lun->ooa_queue, io, ooa_links); 10991 ctl_free_io((union ctl_io *)io); 10992 } 10993 /* We are slave */ 10994 if (io->flags & CTL_FLAG_SENT_2OTHER_SC) { 10995 io->flags &= ~CTL_FLAG_SENT_2OTHER_SC; 10996 if (!(io->flags & CTL_FLAG_IO_ACTIVE)) { 10997 ctl_set_busy(&((union ctl_io *)io)-> 10998 scsiio); 10999 ctl_done((union ctl_io *)io); 11000 } 11001 } 11002 } 11003 ctl_check_blocked(lun); 11004 } 11005} 11006 11007static int 11008ctl_scsiio_precheck(struct ctl_softc *softc, struct ctl_scsiio *ctsio) 11009{ 11010 struct ctl_lun *lun; 11011 const struct ctl_cmd_entry *entry; 11012 uint32_t initidx, targ_lun; 11013 int retval; 11014 11015 retval = 0; 11016 11017 lun = NULL; 11018 11019 targ_lun = ctsio->io_hdr.nexus.targ_mapped_lun; 11020 if ((targ_lun < CTL_MAX_LUNS) 11021 && ((lun = softc->ctl_luns[targ_lun]) != NULL)) { 11022 /* 11023 * If the LUN is invalid, pretend that it doesn't exist. 11024 * It will go away as soon as all pending I/O has been 11025 * completed. 11026 */ 11027 mtx_lock(&lun->lun_lock); 11028 if (lun->flags & CTL_LUN_DISABLED) { 11029 mtx_unlock(&lun->lun_lock); 11030 lun = NULL; 11031 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr = NULL; 11032 ctsio->io_hdr.ctl_private[CTL_PRIV_BACKEND_LUN].ptr = NULL; 11033 } else { 11034 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr = lun; 11035 ctsio->io_hdr.ctl_private[CTL_PRIV_BACKEND_LUN].ptr = 11036 lun->be_lun; 11037 11038 /* 11039 * Every I/O goes into the OOA queue for a 11040 * particular LUN, and stays there until completion. 11041 */ 11042#ifdef CTL_TIME_IO 11043 if (TAILQ_EMPTY(&lun->ooa_queue)) { 11044 lun->idle_time += getsbinuptime() - 11045 lun->last_busy; 11046 } 11047#endif 11048 TAILQ_INSERT_TAIL(&lun->ooa_queue, &ctsio->io_hdr, 11049 ooa_links); 11050 } 11051 } else { 11052 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr = NULL; 11053 ctsio->io_hdr.ctl_private[CTL_PRIV_BACKEND_LUN].ptr = NULL; 11054 } 11055 11056 /* Get command entry and return error if it is unsuppotyed. */ 11057 entry = ctl_validate_command(ctsio); 11058 if (entry == NULL) { 11059 if (lun) 11060 mtx_unlock(&lun->lun_lock); 11061 return (retval); 11062 } 11063 11064 ctsio->io_hdr.flags &= ~CTL_FLAG_DATA_MASK; 11065 ctsio->io_hdr.flags |= entry->flags & CTL_FLAG_DATA_MASK; 11066 11067 /* 11068 * Check to see whether we can send this command to LUNs that don't 11069 * exist. This should pretty much only be the case for inquiry 11070 * and request sense. Further checks, below, really require having 11071 * a LUN, so we can't really check the command anymore. Just put 11072 * it on the rtr queue. 11073 */ 11074 if (lun == NULL) { 11075 if (entry->flags & CTL_CMD_FLAG_OK_ON_ALL_LUNS) { 11076 ctsio->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 11077 ctl_enqueue_rtr((union ctl_io *)ctsio); 11078 return (retval); 11079 } 11080 11081 ctl_set_unsupported_lun(ctsio); 11082 ctl_done((union ctl_io *)ctsio); 11083 CTL_DEBUG_PRINT(("ctl_scsiio_precheck: bailing out due to invalid LUN\n")); 11084 return (retval); 11085 } else { 11086 /* 11087 * Make sure we support this particular command on this LUN. 11088 * e.g., we don't support writes to the control LUN. 11089 */ 11090 if (!ctl_cmd_applicable(lun->be_lun->lun_type, entry)) { 11091 mtx_unlock(&lun->lun_lock); 11092 ctl_set_invalid_opcode(ctsio); 11093 ctl_done((union ctl_io *)ctsio); 11094 return (retval); 11095 } 11096 } 11097 11098 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 11099 11100#ifdef CTL_WITH_CA 11101 /* 11102 * If we've got a request sense, it'll clear the contingent 11103 * allegiance condition. Otherwise, if we have a CA condition for 11104 * this initiator, clear it, because it sent down a command other 11105 * than request sense. 11106 */ 11107 if ((ctsio->cdb[0] != REQUEST_SENSE) 11108 && (ctl_is_set(lun->have_ca, initidx))) 11109 ctl_clear_mask(lun->have_ca, initidx); 11110#endif 11111 11112 /* 11113 * If the command has this flag set, it handles its own unit 11114 * attention reporting, we shouldn't do anything. Otherwise we 11115 * check for any pending unit attentions, and send them back to the 11116 * initiator. We only do this when a command initially comes in, 11117 * not when we pull it off the blocked queue. 11118 * 11119 * According to SAM-3, section 5.3.2, the order that things get 11120 * presented back to the host is basically unit attentions caused 11121 * by some sort of reset event, busy status, reservation conflicts 11122 * or task set full, and finally any other status. 11123 * 11124 * One issue here is that some of the unit attentions we report 11125 * don't fall into the "reset" category (e.g. "reported luns data 11126 * has changed"). So reporting it here, before the reservation 11127 * check, may be technically wrong. I guess the only thing to do 11128 * would be to check for and report the reset events here, and then 11129 * check for the other unit attention types after we check for a 11130 * reservation conflict. 11131 * 11132 * XXX KDM need to fix this 11133 */ 11134 if ((entry->flags & CTL_CMD_FLAG_NO_SENSE) == 0) { 11135 ctl_ua_type ua_type; 11136 scsi_sense_data_type sense_format; 11137 11138 if (lun->flags & CTL_LUN_SENSE_DESC) 11139 sense_format = SSD_TYPE_DESC; 11140 else 11141 sense_format = SSD_TYPE_FIXED; 11142 11143 ua_type = ctl_build_ua(lun, initidx, &ctsio->sense_data, 11144 sense_format); 11145 if (ua_type != CTL_UA_NONE) { 11146 mtx_unlock(&lun->lun_lock); 11147 ctsio->scsi_status = SCSI_STATUS_CHECK_COND; 11148 ctsio->io_hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 11149 ctsio->sense_len = SSD_FULL_SIZE; 11150 ctl_done((union ctl_io *)ctsio); 11151 return (retval); 11152 } 11153 } 11154 11155 11156 if (ctl_scsiio_lun_check(lun, entry, ctsio) != 0) { 11157 mtx_unlock(&lun->lun_lock); 11158 ctl_done((union ctl_io *)ctsio); 11159 return (retval); 11160 } 11161 11162 /* 11163 * XXX CHD this is where we want to send IO to other side if 11164 * this LUN is secondary on this SC. We will need to make a copy 11165 * of the IO and flag the IO on this side as SENT_2OTHER and the flag 11166 * the copy we send as FROM_OTHER. 11167 * We also need to stuff the address of the original IO so we can 11168 * find it easily. Something similar will need be done on the other 11169 * side so when we are done we can find the copy. 11170 */ 11171 if ((lun->flags & CTL_LUN_PRIMARY_SC) == 0 && 11172 (lun->flags & CTL_LUN_PEER_SC_PRIMARY) != 0) { 11173 union ctl_ha_msg msg_info; 11174 int isc_retval; 11175 11176 ctsio->io_hdr.flags |= CTL_FLAG_SENT_2OTHER_SC; 11177 ctsio->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 11178 mtx_unlock(&lun->lun_lock); 11179 11180 msg_info.hdr.msg_type = CTL_MSG_SERIALIZE; 11181 msg_info.hdr.original_sc = (union ctl_io *)ctsio; 11182 msg_info.hdr.serializing_sc = NULL; 11183 msg_info.hdr.nexus = ctsio->io_hdr.nexus; 11184 msg_info.scsi.tag_num = ctsio->tag_num; 11185 msg_info.scsi.tag_type = ctsio->tag_type; 11186 msg_info.scsi.cdb_len = ctsio->cdb_len; 11187 memcpy(msg_info.scsi.cdb, ctsio->cdb, CTL_MAX_CDBLEN); 11188 11189 if ((isc_retval = ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 11190 sizeof(msg_info.scsi) - sizeof(msg_info.scsi.sense_data), 11191 M_WAITOK)) > CTL_HA_STATUS_SUCCESS) { 11192 ctl_set_busy(ctsio); 11193 ctl_done((union ctl_io *)ctsio); 11194 return (retval); 11195 } 11196 return (retval); 11197 } 11198 11199 switch (ctl_check_ooa(lun, (union ctl_io *)ctsio, 11200 (union ctl_io *)TAILQ_PREV(&ctsio->io_hdr, 11201 ctl_ooaq, ooa_links))) { 11202 case CTL_ACTION_BLOCK: 11203 ctsio->io_hdr.flags |= CTL_FLAG_BLOCKED; 11204 TAILQ_INSERT_TAIL(&lun->blocked_queue, &ctsio->io_hdr, 11205 blocked_links); 11206 mtx_unlock(&lun->lun_lock); 11207 return (retval); 11208 case CTL_ACTION_PASS: 11209 case CTL_ACTION_SKIP: 11210 ctsio->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 11211 mtx_unlock(&lun->lun_lock); 11212 ctl_enqueue_rtr((union ctl_io *)ctsio); 11213 break; 11214 case CTL_ACTION_OVERLAP: 11215 mtx_unlock(&lun->lun_lock); 11216 ctl_set_overlapped_cmd(ctsio); 11217 ctl_done((union ctl_io *)ctsio); 11218 break; 11219 case CTL_ACTION_OVERLAP_TAG: 11220 mtx_unlock(&lun->lun_lock); 11221 ctl_set_overlapped_tag(ctsio, ctsio->tag_num & 0xff); 11222 ctl_done((union ctl_io *)ctsio); 11223 break; 11224 case CTL_ACTION_ERROR: 11225 default: 11226 mtx_unlock(&lun->lun_lock); 11227 ctl_set_internal_failure(ctsio, 11228 /*sks_valid*/ 0, 11229 /*retry_count*/ 0); 11230 ctl_done((union ctl_io *)ctsio); 11231 break; 11232 } 11233 return (retval); 11234} 11235 11236const struct ctl_cmd_entry * 11237ctl_get_cmd_entry(struct ctl_scsiio *ctsio, int *sa) 11238{ 11239 const struct ctl_cmd_entry *entry; 11240 int service_action; 11241 11242 entry = &ctl_cmd_table[ctsio->cdb[0]]; 11243 if (sa) 11244 *sa = ((entry->flags & CTL_CMD_FLAG_SA5) != 0); 11245 if (entry->flags & CTL_CMD_FLAG_SA5) { 11246 service_action = ctsio->cdb[1] & SERVICE_ACTION_MASK; 11247 entry = &((const struct ctl_cmd_entry *) 11248 entry->execute)[service_action]; 11249 } 11250 return (entry); 11251} 11252 11253const struct ctl_cmd_entry * 11254ctl_validate_command(struct ctl_scsiio *ctsio) 11255{ 11256 const struct ctl_cmd_entry *entry; 11257 int i, sa; 11258 uint8_t diff; 11259 11260 entry = ctl_get_cmd_entry(ctsio, &sa); 11261 if (entry->execute == NULL) { 11262 if (sa) 11263 ctl_set_invalid_field(ctsio, 11264 /*sks_valid*/ 1, 11265 /*command*/ 1, 11266 /*field*/ 1, 11267 /*bit_valid*/ 1, 11268 /*bit*/ 4); 11269 else 11270 ctl_set_invalid_opcode(ctsio); 11271 ctl_done((union ctl_io *)ctsio); 11272 return (NULL); 11273 } 11274 KASSERT(entry->length > 0, 11275 ("Not defined length for command 0x%02x/0x%02x", 11276 ctsio->cdb[0], ctsio->cdb[1])); 11277 for (i = 1; i < entry->length; i++) { 11278 diff = ctsio->cdb[i] & ~entry->usage[i - 1]; 11279 if (diff == 0) 11280 continue; 11281 ctl_set_invalid_field(ctsio, 11282 /*sks_valid*/ 1, 11283 /*command*/ 1, 11284 /*field*/ i, 11285 /*bit_valid*/ 1, 11286 /*bit*/ fls(diff) - 1); 11287 ctl_done((union ctl_io *)ctsio); 11288 return (NULL); 11289 } 11290 return (entry); 11291} 11292 11293static int 11294ctl_cmd_applicable(uint8_t lun_type, const struct ctl_cmd_entry *entry) 11295{ 11296 11297 switch (lun_type) { 11298 case T_PROCESSOR: 11299 if (((entry->flags & CTL_CMD_FLAG_OK_ON_PROC) == 0) && 11300 ((entry->flags & CTL_CMD_FLAG_OK_ON_ALL_LUNS) == 0)) 11301 return (0); 11302 break; 11303 case T_DIRECT: 11304 if (((entry->flags & CTL_CMD_FLAG_OK_ON_SLUN) == 0) && 11305 ((entry->flags & CTL_CMD_FLAG_OK_ON_ALL_LUNS) == 0)) 11306 return (0); 11307 break; 11308 default: 11309 return (0); 11310 } 11311 return (1); 11312} 11313 11314static int 11315ctl_scsiio(struct ctl_scsiio *ctsio) 11316{ 11317 int retval; 11318 const struct ctl_cmd_entry *entry; 11319 11320 retval = CTL_RETVAL_COMPLETE; 11321 11322 CTL_DEBUG_PRINT(("ctl_scsiio cdb[0]=%02X\n", ctsio->cdb[0])); 11323 11324 entry = ctl_get_cmd_entry(ctsio, NULL); 11325 11326 /* 11327 * If this I/O has been aborted, just send it straight to 11328 * ctl_done() without executing it. 11329 */ 11330 if (ctsio->io_hdr.flags & CTL_FLAG_ABORT) { 11331 ctl_done((union ctl_io *)ctsio); 11332 goto bailout; 11333 } 11334 11335 /* 11336 * All the checks should have been handled by ctl_scsiio_precheck(). 11337 * We should be clear now to just execute the I/O. 11338 */ 11339 retval = entry->execute(ctsio); 11340 11341bailout: 11342 return (retval); 11343} 11344 11345/* 11346 * Since we only implement one target right now, a bus reset simply resets 11347 * our single target. 11348 */ 11349static int 11350ctl_bus_reset(struct ctl_softc *softc, union ctl_io *io) 11351{ 11352 return(ctl_target_reset(softc, io, CTL_UA_BUS_RESET)); 11353} 11354 11355static int 11356ctl_target_reset(struct ctl_softc *softc, union ctl_io *io, 11357 ctl_ua_type ua_type) 11358{ 11359 struct ctl_port *port; 11360 struct ctl_lun *lun; 11361 int retval; 11362 11363 if (!(io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)) { 11364 union ctl_ha_msg msg_info; 11365 11366 msg_info.hdr.nexus = io->io_hdr.nexus; 11367 if (ua_type==CTL_UA_TARG_RESET) 11368 msg_info.task.task_action = CTL_TASK_TARGET_RESET; 11369 else 11370 msg_info.task.task_action = CTL_TASK_BUS_RESET; 11371 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 11372 msg_info.hdr.original_sc = NULL; 11373 msg_info.hdr.serializing_sc = NULL; 11374 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 11375 sizeof(msg_info.task), M_WAITOK); 11376 } 11377 retval = 0; 11378 11379 mtx_lock(&softc->ctl_lock); 11380 port = softc->ctl_ports[io->io_hdr.nexus.targ_port]; 11381 STAILQ_FOREACH(lun, &softc->lun_list, links) { 11382 if (port != NULL && 11383 ctl_lun_map_to_port(port, lun->lun) >= CTL_MAX_LUNS) 11384 continue; 11385 retval += ctl_do_lun_reset(lun, io, ua_type); 11386 } 11387 mtx_unlock(&softc->ctl_lock); 11388 io->taskio.task_status = CTL_TASK_FUNCTION_COMPLETE; 11389 return (retval); 11390} 11391 11392/* 11393 * The LUN should always be set. The I/O is optional, and is used to 11394 * distinguish between I/Os sent by this initiator, and by other 11395 * initiators. We set unit attention for initiators other than this one. 11396 * SAM-3 is vague on this point. It does say that a unit attention should 11397 * be established for other initiators when a LUN is reset (see section 11398 * 5.7.3), but it doesn't specifically say that the unit attention should 11399 * be established for this particular initiator when a LUN is reset. Here 11400 * is the relevant text, from SAM-3 rev 8: 11401 * 11402 * 5.7.2 When a SCSI initiator port aborts its own tasks 11403 * 11404 * When a SCSI initiator port causes its own task(s) to be aborted, no 11405 * notification that the task(s) have been aborted shall be returned to 11406 * the SCSI initiator port other than the completion response for the 11407 * command or task management function action that caused the task(s) to 11408 * be aborted and notification(s) associated with related effects of the 11409 * action (e.g., a reset unit attention condition). 11410 * 11411 * XXX KDM for now, we're setting unit attention for all initiators. 11412 */ 11413static int 11414ctl_do_lun_reset(struct ctl_lun *lun, union ctl_io *io, ctl_ua_type ua_type) 11415{ 11416 union ctl_io *xio; 11417#if 0 11418 uint32_t initidx; 11419#endif 11420#ifdef CTL_WITH_CA 11421 int i; 11422#endif 11423 11424 mtx_lock(&lun->lun_lock); 11425 /* 11426 * Run through the OOA queue and abort each I/O. 11427 */ 11428 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 11429 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 11430 xio->io_hdr.flags |= CTL_FLAG_ABORT | CTL_FLAG_ABORT_STATUS; 11431 } 11432 11433 /* 11434 * This version sets unit attention for every 11435 */ 11436#if 0 11437 initidx = ctl_get_initindex(&io->io_hdr.nexus); 11438 ctl_est_ua_all(lun, initidx, ua_type); 11439#else 11440 ctl_est_ua_all(lun, -1, ua_type); 11441#endif 11442 11443 /* 11444 * A reset (any kind, really) clears reservations established with 11445 * RESERVE/RELEASE. It does not clear reservations established 11446 * with PERSISTENT RESERVE OUT, but we don't support that at the 11447 * moment anyway. See SPC-2, section 5.6. SPC-3 doesn't address 11448 * reservations made with the RESERVE/RELEASE commands, because 11449 * those commands are obsolete in SPC-3. 11450 */ 11451 lun->flags &= ~CTL_LUN_RESERVED; 11452 11453#ifdef CTL_WITH_CA 11454 for (i = 0; i < CTL_MAX_INITIATORS; i++) 11455 ctl_clear_mask(lun->have_ca, i); 11456#endif 11457 mtx_unlock(&lun->lun_lock); 11458 11459 return (0); 11460} 11461 11462static int 11463ctl_lun_reset(struct ctl_softc *softc, union ctl_io *io) 11464{ 11465 struct ctl_lun *lun; 11466 uint32_t targ_lun; 11467 int retval; 11468 11469 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 11470 mtx_lock(&softc->ctl_lock); 11471 if ((targ_lun >= CTL_MAX_LUNS) || 11472 (lun = softc->ctl_luns[targ_lun]) == NULL) { 11473 mtx_unlock(&softc->ctl_lock); 11474 io->taskio.task_status = CTL_TASK_LUN_DOES_NOT_EXIST; 11475 return (1); 11476 } 11477 retval = ctl_do_lun_reset(lun, io, CTL_UA_LUN_RESET); 11478 mtx_unlock(&softc->ctl_lock); 11479 io->taskio.task_status = CTL_TASK_FUNCTION_COMPLETE; 11480 11481 if ((io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) == 0) { 11482 union ctl_ha_msg msg_info; 11483 11484 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 11485 msg_info.hdr.nexus = io->io_hdr.nexus; 11486 msg_info.task.task_action = CTL_TASK_LUN_RESET; 11487 msg_info.hdr.original_sc = NULL; 11488 msg_info.hdr.serializing_sc = NULL; 11489 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 11490 sizeof(msg_info.task), M_WAITOK); 11491 } 11492 return (retval); 11493} 11494 11495static void 11496ctl_abort_tasks_lun(struct ctl_lun *lun, uint32_t targ_port, uint32_t init_id, 11497 int other_sc) 11498{ 11499 union ctl_io *xio; 11500 11501 mtx_assert(&lun->lun_lock, MA_OWNED); 11502 11503 /* 11504 * Run through the OOA queue and attempt to find the given I/O. 11505 * The target port, initiator ID, tag type and tag number have to 11506 * match the values that we got from the initiator. If we have an 11507 * untagged command to abort, simply abort the first untagged command 11508 * we come to. We only allow one untagged command at a time of course. 11509 */ 11510 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 11511 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 11512 11513 if ((targ_port == UINT32_MAX || 11514 targ_port == xio->io_hdr.nexus.targ_port) && 11515 (init_id == UINT32_MAX || 11516 init_id == xio->io_hdr.nexus.initid)) { 11517 if (targ_port != xio->io_hdr.nexus.targ_port || 11518 init_id != xio->io_hdr.nexus.initid) 11519 xio->io_hdr.flags |= CTL_FLAG_ABORT_STATUS; 11520 xio->io_hdr.flags |= CTL_FLAG_ABORT; 11521 if (!other_sc && !(lun->flags & CTL_LUN_PRIMARY_SC)) { 11522 union ctl_ha_msg msg_info; 11523 11524 msg_info.hdr.nexus = xio->io_hdr.nexus; 11525 msg_info.task.task_action = CTL_TASK_ABORT_TASK; 11526 msg_info.task.tag_num = xio->scsiio.tag_num; 11527 msg_info.task.tag_type = xio->scsiio.tag_type; 11528 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 11529 msg_info.hdr.original_sc = NULL; 11530 msg_info.hdr.serializing_sc = NULL; 11531 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 11532 sizeof(msg_info.task), M_NOWAIT); 11533 } 11534 } 11535 } 11536} 11537 11538static int 11539ctl_abort_task_set(union ctl_io *io) 11540{ 11541 struct ctl_softc *softc = control_softc; 11542 struct ctl_lun *lun; 11543 uint32_t targ_lun; 11544 11545 /* 11546 * Look up the LUN. 11547 */ 11548 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 11549 mtx_lock(&softc->ctl_lock); 11550 if ((targ_lun >= CTL_MAX_LUNS) || 11551 (lun = softc->ctl_luns[targ_lun]) == NULL) { 11552 mtx_unlock(&softc->ctl_lock); 11553 io->taskio.task_status = CTL_TASK_LUN_DOES_NOT_EXIST; 11554 return (1); 11555 } 11556 11557 mtx_lock(&lun->lun_lock); 11558 mtx_unlock(&softc->ctl_lock); 11559 if (io->taskio.task_action == CTL_TASK_ABORT_TASK_SET) { 11560 ctl_abort_tasks_lun(lun, io->io_hdr.nexus.targ_port, 11561 io->io_hdr.nexus.initid, 11562 (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) != 0); 11563 } else { /* CTL_TASK_CLEAR_TASK_SET */ 11564 ctl_abort_tasks_lun(lun, UINT32_MAX, UINT32_MAX, 11565 (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) != 0); 11566 } 11567 mtx_unlock(&lun->lun_lock); 11568 io->taskio.task_status = CTL_TASK_FUNCTION_COMPLETE; 11569 return (0); 11570} 11571 11572static int 11573ctl_i_t_nexus_reset(union ctl_io *io) 11574{ 11575 struct ctl_softc *softc = control_softc; 11576 struct ctl_lun *lun; 11577 uint32_t initidx; 11578 11579 if (!(io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)) { 11580 union ctl_ha_msg msg_info; 11581 11582 msg_info.hdr.nexus = io->io_hdr.nexus; 11583 msg_info.task.task_action = CTL_TASK_I_T_NEXUS_RESET; 11584 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 11585 msg_info.hdr.original_sc = NULL; 11586 msg_info.hdr.serializing_sc = NULL; 11587 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 11588 sizeof(msg_info.task), M_WAITOK); 11589 } 11590 11591 initidx = ctl_get_initindex(&io->io_hdr.nexus); 11592 mtx_lock(&softc->ctl_lock); 11593 STAILQ_FOREACH(lun, &softc->lun_list, links) { 11594 mtx_lock(&lun->lun_lock); 11595 ctl_abort_tasks_lun(lun, io->io_hdr.nexus.targ_port, 11596 io->io_hdr.nexus.initid, 1); 11597#ifdef CTL_WITH_CA 11598 ctl_clear_mask(lun->have_ca, initidx); 11599#endif 11600 if ((lun->flags & CTL_LUN_RESERVED) && (lun->res_idx == initidx)) 11601 lun->flags &= ~CTL_LUN_RESERVED; 11602 ctl_est_ua(lun, initidx, CTL_UA_I_T_NEXUS_LOSS); 11603 mtx_unlock(&lun->lun_lock); 11604 } 11605 mtx_unlock(&softc->ctl_lock); 11606 io->taskio.task_status = CTL_TASK_FUNCTION_COMPLETE; 11607 return (0); 11608} 11609 11610static int 11611ctl_abort_task(union ctl_io *io) 11612{ 11613 union ctl_io *xio; 11614 struct ctl_lun *lun; 11615 struct ctl_softc *softc; 11616#if 0 11617 struct sbuf sb; 11618 char printbuf[128]; 11619#endif 11620 int found; 11621 uint32_t targ_lun; 11622 11623 softc = control_softc; 11624 found = 0; 11625 11626 /* 11627 * Look up the LUN. 11628 */ 11629 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 11630 mtx_lock(&softc->ctl_lock); 11631 if ((targ_lun >= CTL_MAX_LUNS) || 11632 (lun = softc->ctl_luns[targ_lun]) == NULL) { 11633 mtx_unlock(&softc->ctl_lock); 11634 io->taskio.task_status = CTL_TASK_LUN_DOES_NOT_EXIST; 11635 return (1); 11636 } 11637 11638#if 0 11639 printf("ctl_abort_task: called for lun %lld, tag %d type %d\n", 11640 lun->lun, io->taskio.tag_num, io->taskio.tag_type); 11641#endif 11642 11643 mtx_lock(&lun->lun_lock); 11644 mtx_unlock(&softc->ctl_lock); 11645 /* 11646 * Run through the OOA queue and attempt to find the given I/O. 11647 * The target port, initiator ID, tag type and tag number have to 11648 * match the values that we got from the initiator. If we have an 11649 * untagged command to abort, simply abort the first untagged command 11650 * we come to. We only allow one untagged command at a time of course. 11651 */ 11652 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 11653 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 11654#if 0 11655 sbuf_new(&sb, printbuf, sizeof(printbuf), SBUF_FIXEDLEN); 11656 11657 sbuf_printf(&sb, "LUN %lld tag %d type %d%s%s%s%s: ", 11658 lun->lun, xio->scsiio.tag_num, 11659 xio->scsiio.tag_type, 11660 (xio->io_hdr.blocked_links.tqe_prev 11661 == NULL) ? "" : " BLOCKED", 11662 (xio->io_hdr.flags & 11663 CTL_FLAG_DMA_INPROG) ? " DMA" : "", 11664 (xio->io_hdr.flags & 11665 CTL_FLAG_ABORT) ? " ABORT" : "", 11666 (xio->io_hdr.flags & 11667 CTL_FLAG_IS_WAS_ON_RTR ? " RTR" : "")); 11668 ctl_scsi_command_string(&xio->scsiio, NULL, &sb); 11669 sbuf_finish(&sb); 11670 printf("%s\n", sbuf_data(&sb)); 11671#endif 11672 11673 if ((xio->io_hdr.nexus.targ_port != io->io_hdr.nexus.targ_port) 11674 || (xio->io_hdr.nexus.initid != io->io_hdr.nexus.initid) 11675 || (xio->io_hdr.flags & CTL_FLAG_ABORT)) 11676 continue; 11677 11678 /* 11679 * If the abort says that the task is untagged, the 11680 * task in the queue must be untagged. Otherwise, 11681 * we just check to see whether the tag numbers 11682 * match. This is because the QLogic firmware 11683 * doesn't pass back the tag type in an abort 11684 * request. 11685 */ 11686#if 0 11687 if (((xio->scsiio.tag_type == CTL_TAG_UNTAGGED) 11688 && (io->taskio.tag_type == CTL_TAG_UNTAGGED)) 11689 || (xio->scsiio.tag_num == io->taskio.tag_num)) 11690#endif 11691 /* 11692 * XXX KDM we've got problems with FC, because it 11693 * doesn't send down a tag type with aborts. So we 11694 * can only really go by the tag number... 11695 * This may cause problems with parallel SCSI. 11696 * Need to figure that out!! 11697 */ 11698 if (xio->scsiio.tag_num == io->taskio.tag_num) { 11699 xio->io_hdr.flags |= CTL_FLAG_ABORT; 11700 found = 1; 11701 if ((io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) == 0 && 11702 !(lun->flags & CTL_LUN_PRIMARY_SC)) { 11703 union ctl_ha_msg msg_info; 11704 11705 msg_info.hdr.nexus = io->io_hdr.nexus; 11706 msg_info.task.task_action = CTL_TASK_ABORT_TASK; 11707 msg_info.task.tag_num = io->taskio.tag_num; 11708 msg_info.task.tag_type = io->taskio.tag_type; 11709 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 11710 msg_info.hdr.original_sc = NULL; 11711 msg_info.hdr.serializing_sc = NULL; 11712#if 0 11713 printf("Sent Abort to other side\n"); 11714#endif 11715 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 11716 sizeof(msg_info.task), M_NOWAIT); 11717 } 11718#if 0 11719 printf("ctl_abort_task: found I/O to abort\n"); 11720#endif 11721 } 11722 } 11723 mtx_unlock(&lun->lun_lock); 11724 11725 if (found == 0) { 11726 /* 11727 * This isn't really an error. It's entirely possible for 11728 * the abort and command completion to cross on the wire. 11729 * This is more of an informative/diagnostic error. 11730 */ 11731#if 0 11732 printf("ctl_abort_task: ABORT sent for nonexistent I/O: " 11733 "%u:%u:%u tag %d type %d\n", 11734 io->io_hdr.nexus.initid, 11735 io->io_hdr.nexus.targ_port, 11736 io->io_hdr.nexus.targ_lun, io->taskio.tag_num, 11737 io->taskio.tag_type); 11738#endif 11739 } 11740 io->taskio.task_status = CTL_TASK_FUNCTION_COMPLETE; 11741 return (0); 11742} 11743 11744static int 11745ctl_query_task(union ctl_io *io, int task_set) 11746{ 11747 union ctl_io *xio; 11748 struct ctl_lun *lun; 11749 struct ctl_softc *softc; 11750 int found = 0; 11751 uint32_t targ_lun; 11752 11753 softc = control_softc; 11754 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 11755 mtx_lock(&softc->ctl_lock); 11756 if ((targ_lun >= CTL_MAX_LUNS) || 11757 (lun = softc->ctl_luns[targ_lun]) == NULL) { 11758 mtx_unlock(&softc->ctl_lock); 11759 io->taskio.task_status = CTL_TASK_LUN_DOES_NOT_EXIST; 11760 return (1); 11761 } 11762 mtx_lock(&lun->lun_lock); 11763 mtx_unlock(&softc->ctl_lock); 11764 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 11765 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 11766 11767 if ((xio->io_hdr.nexus.targ_port != io->io_hdr.nexus.targ_port) 11768 || (xio->io_hdr.nexus.initid != io->io_hdr.nexus.initid) 11769 || (xio->io_hdr.flags & CTL_FLAG_ABORT)) 11770 continue; 11771 11772 if (task_set || xio->scsiio.tag_num == io->taskio.tag_num) { 11773 found = 1; 11774 break; 11775 } 11776 } 11777 mtx_unlock(&lun->lun_lock); 11778 if (found) 11779 io->taskio.task_status = CTL_TASK_FUNCTION_SUCCEEDED; 11780 else 11781 io->taskio.task_status = CTL_TASK_FUNCTION_COMPLETE; 11782 return (0); 11783} 11784 11785static int 11786ctl_query_async_event(union ctl_io *io) 11787{ 11788 struct ctl_lun *lun; 11789 struct ctl_softc *softc; 11790 ctl_ua_type ua; 11791 uint32_t targ_lun, initidx; 11792 11793 softc = control_softc; 11794 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 11795 mtx_lock(&softc->ctl_lock); 11796 if ((targ_lun >= CTL_MAX_LUNS) || 11797 (lun = softc->ctl_luns[targ_lun]) == NULL) { 11798 mtx_unlock(&softc->ctl_lock); 11799 io->taskio.task_status = CTL_TASK_LUN_DOES_NOT_EXIST; 11800 return (1); 11801 } 11802 mtx_lock(&lun->lun_lock); 11803 mtx_unlock(&softc->ctl_lock); 11804 initidx = ctl_get_initindex(&io->io_hdr.nexus); 11805 ua = ctl_build_qae(lun, initidx, io->taskio.task_resp); 11806 mtx_unlock(&lun->lun_lock); 11807 if (ua != CTL_UA_NONE) 11808 io->taskio.task_status = CTL_TASK_FUNCTION_SUCCEEDED; 11809 else 11810 io->taskio.task_status = CTL_TASK_FUNCTION_COMPLETE; 11811 return (0); 11812} 11813 11814static void 11815ctl_run_task(union ctl_io *io) 11816{ 11817 struct ctl_softc *softc = control_softc; 11818 int retval = 1; 11819 11820 CTL_DEBUG_PRINT(("ctl_run_task\n")); 11821 KASSERT(io->io_hdr.io_type == CTL_IO_TASK, 11822 ("ctl_run_task: Unextected io_type %d\n", io->io_hdr.io_type)); 11823 io->taskio.task_status = CTL_TASK_FUNCTION_NOT_SUPPORTED; 11824 bzero(io->taskio.task_resp, sizeof(io->taskio.task_resp)); 11825 switch (io->taskio.task_action) { 11826 case CTL_TASK_ABORT_TASK: 11827 retval = ctl_abort_task(io); 11828 break; 11829 case CTL_TASK_ABORT_TASK_SET: 11830 case CTL_TASK_CLEAR_TASK_SET: 11831 retval = ctl_abort_task_set(io); 11832 break; 11833 case CTL_TASK_CLEAR_ACA: 11834 break; 11835 case CTL_TASK_I_T_NEXUS_RESET: 11836 retval = ctl_i_t_nexus_reset(io); 11837 break; 11838 case CTL_TASK_LUN_RESET: 11839 retval = ctl_lun_reset(softc, io); 11840 break; 11841 case CTL_TASK_TARGET_RESET: 11842 retval = ctl_target_reset(softc, io, CTL_UA_TARG_RESET); 11843 break; 11844 case CTL_TASK_BUS_RESET: 11845 retval = ctl_bus_reset(softc, io); 11846 break; 11847 case CTL_TASK_PORT_LOGIN: 11848 break; 11849 case CTL_TASK_PORT_LOGOUT: 11850 break; 11851 case CTL_TASK_QUERY_TASK: 11852 retval = ctl_query_task(io, 0); 11853 break; 11854 case CTL_TASK_QUERY_TASK_SET: 11855 retval = ctl_query_task(io, 1); 11856 break; 11857 case CTL_TASK_QUERY_ASYNC_EVENT: 11858 retval = ctl_query_async_event(io); 11859 break; 11860 default: 11861 printf("%s: got unknown task management event %d\n", 11862 __func__, io->taskio.task_action); 11863 break; 11864 } 11865 if (retval == 0) 11866 io->io_hdr.status = CTL_SUCCESS; 11867 else 11868 io->io_hdr.status = CTL_ERROR; 11869 ctl_done(io); 11870} 11871 11872/* 11873 * For HA operation. Handle commands that come in from the other 11874 * controller. 11875 */ 11876static void 11877ctl_handle_isc(union ctl_io *io) 11878{ 11879 int free_io; 11880 struct ctl_lun *lun; 11881 struct ctl_softc *softc; 11882 uint32_t targ_lun; 11883 11884 softc = control_softc; 11885 11886 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 11887 lun = softc->ctl_luns[targ_lun]; 11888 11889 switch (io->io_hdr.msg_type) { 11890 case CTL_MSG_SERIALIZE: 11891 free_io = ctl_serialize_other_sc_cmd(&io->scsiio); 11892 break; 11893 case CTL_MSG_R2R: { 11894 const struct ctl_cmd_entry *entry; 11895 11896 /* 11897 * This is only used in SER_ONLY mode. 11898 */ 11899 free_io = 0; 11900 entry = ctl_get_cmd_entry(&io->scsiio, NULL); 11901 mtx_lock(&lun->lun_lock); 11902 if (ctl_scsiio_lun_check(lun, 11903 entry, (struct ctl_scsiio *)io) != 0) { 11904 mtx_unlock(&lun->lun_lock); 11905 ctl_done(io); 11906 break; 11907 } 11908 io->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 11909 mtx_unlock(&lun->lun_lock); 11910 ctl_enqueue_rtr(io); 11911 break; 11912 } 11913 case CTL_MSG_FINISH_IO: 11914 if (softc->ha_mode == CTL_HA_MODE_XFER) { 11915 free_io = 0; 11916 ctl_done(io); 11917 } else { 11918 free_io = 1; 11919 mtx_lock(&lun->lun_lock); 11920 TAILQ_REMOVE(&lun->ooa_queue, &io->io_hdr, 11921 ooa_links); 11922 ctl_check_blocked(lun); 11923 mtx_unlock(&lun->lun_lock); 11924 } 11925 break; 11926 case CTL_MSG_PERS_ACTION: 11927 ctl_hndl_per_res_out_on_other_sc( 11928 (union ctl_ha_msg *)&io->presio.pr_msg); 11929 free_io = 1; 11930 break; 11931 case CTL_MSG_BAD_JUJU: 11932 free_io = 0; 11933 ctl_done(io); 11934 break; 11935 case CTL_MSG_DATAMOVE: 11936 /* Only used in XFER mode */ 11937 free_io = 0; 11938 ctl_datamove_remote(io); 11939 break; 11940 case CTL_MSG_DATAMOVE_DONE: 11941 /* Only used in XFER mode */ 11942 free_io = 0; 11943 io->scsiio.be_move_done(io); 11944 break; 11945 case CTL_MSG_FAILOVER: 11946 mtx_lock(&lun->lun_lock); 11947 ctl_failover_lun(lun); 11948 mtx_unlock(&lun->lun_lock); 11949 free_io = 1; 11950 break; 11951 default: 11952 free_io = 1; 11953 printf("%s: Invalid message type %d\n", 11954 __func__, io->io_hdr.msg_type); 11955 break; 11956 } 11957 if (free_io) 11958 ctl_free_io(io); 11959 11960} 11961 11962 11963/* 11964 * Returns the match type in the case of a match, or CTL_LUN_PAT_NONE if 11965 * there is no match. 11966 */ 11967static ctl_lun_error_pattern 11968ctl_cmd_pattern_match(struct ctl_scsiio *ctsio, struct ctl_error_desc *desc) 11969{ 11970 const struct ctl_cmd_entry *entry; 11971 ctl_lun_error_pattern filtered_pattern, pattern; 11972 11973 pattern = desc->error_pattern; 11974 11975 /* 11976 * XXX KDM we need more data passed into this function to match a 11977 * custom pattern, and we actually need to implement custom pattern 11978 * matching. 11979 */ 11980 if (pattern & CTL_LUN_PAT_CMD) 11981 return (CTL_LUN_PAT_CMD); 11982 11983 if ((pattern & CTL_LUN_PAT_MASK) == CTL_LUN_PAT_ANY) 11984 return (CTL_LUN_PAT_ANY); 11985 11986 entry = ctl_get_cmd_entry(ctsio, NULL); 11987 11988 filtered_pattern = entry->pattern & pattern; 11989 11990 /* 11991 * If the user requested specific flags in the pattern (e.g. 11992 * CTL_LUN_PAT_RANGE), make sure the command supports all of those 11993 * flags. 11994 * 11995 * If the user did not specify any flags, it doesn't matter whether 11996 * or not the command supports the flags. 11997 */ 11998 if ((filtered_pattern & ~CTL_LUN_PAT_MASK) != 11999 (pattern & ~CTL_LUN_PAT_MASK)) 12000 return (CTL_LUN_PAT_NONE); 12001 12002 /* 12003 * If the user asked for a range check, see if the requested LBA 12004 * range overlaps with this command's LBA range. 12005 */ 12006 if (filtered_pattern & CTL_LUN_PAT_RANGE) { 12007 uint64_t lba1; 12008 uint64_t len1; 12009 ctl_action action; 12010 int retval; 12011 12012 retval = ctl_get_lba_len((union ctl_io *)ctsio, &lba1, &len1); 12013 if (retval != 0) 12014 return (CTL_LUN_PAT_NONE); 12015 12016 action = ctl_extent_check_lba(lba1, len1, desc->lba_range.lba, 12017 desc->lba_range.len, FALSE); 12018 /* 12019 * A "pass" means that the LBA ranges don't overlap, so 12020 * this doesn't match the user's range criteria. 12021 */ 12022 if (action == CTL_ACTION_PASS) 12023 return (CTL_LUN_PAT_NONE); 12024 } 12025 12026 return (filtered_pattern); 12027} 12028 12029static void 12030ctl_inject_error(struct ctl_lun *lun, union ctl_io *io) 12031{ 12032 struct ctl_error_desc *desc, *desc2; 12033 12034 mtx_assert(&lun->lun_lock, MA_OWNED); 12035 12036 STAILQ_FOREACH_SAFE(desc, &lun->error_list, links, desc2) { 12037 ctl_lun_error_pattern pattern; 12038 /* 12039 * Check to see whether this particular command matches 12040 * the pattern in the descriptor. 12041 */ 12042 pattern = ctl_cmd_pattern_match(&io->scsiio, desc); 12043 if ((pattern & CTL_LUN_PAT_MASK) == CTL_LUN_PAT_NONE) 12044 continue; 12045 12046 switch (desc->lun_error & CTL_LUN_INJ_TYPE) { 12047 case CTL_LUN_INJ_ABORTED: 12048 ctl_set_aborted(&io->scsiio); 12049 break; 12050 case CTL_LUN_INJ_MEDIUM_ERR: 12051 ctl_set_medium_error(&io->scsiio, 12052 (io->io_hdr.flags & CTL_FLAG_DATA_MASK) != 12053 CTL_FLAG_DATA_OUT); 12054 break; 12055 case CTL_LUN_INJ_UA: 12056 /* 29h/00h POWER ON, RESET, OR BUS DEVICE RESET 12057 * OCCURRED */ 12058 ctl_set_ua(&io->scsiio, 0x29, 0x00); 12059 break; 12060 case CTL_LUN_INJ_CUSTOM: 12061 /* 12062 * We're assuming the user knows what he is doing. 12063 * Just copy the sense information without doing 12064 * checks. 12065 */ 12066 bcopy(&desc->custom_sense, &io->scsiio.sense_data, 12067 MIN(sizeof(desc->custom_sense), 12068 sizeof(io->scsiio.sense_data))); 12069 io->scsiio.scsi_status = SCSI_STATUS_CHECK_COND; 12070 io->scsiio.sense_len = SSD_FULL_SIZE; 12071 io->io_hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 12072 break; 12073 case CTL_LUN_INJ_NONE: 12074 default: 12075 /* 12076 * If this is an error injection type we don't know 12077 * about, clear the continuous flag (if it is set) 12078 * so it will get deleted below. 12079 */ 12080 desc->lun_error &= ~CTL_LUN_INJ_CONTINUOUS; 12081 break; 12082 } 12083 /* 12084 * By default, each error injection action is a one-shot 12085 */ 12086 if (desc->lun_error & CTL_LUN_INJ_CONTINUOUS) 12087 continue; 12088 12089 STAILQ_REMOVE(&lun->error_list, desc, ctl_error_desc, links); 12090 12091 free(desc, M_CTL); 12092 } 12093} 12094 12095#ifdef CTL_IO_DELAY 12096static void 12097ctl_datamove_timer_wakeup(void *arg) 12098{ 12099 union ctl_io *io; 12100 12101 io = (union ctl_io *)arg; 12102 12103 ctl_datamove(io); 12104} 12105#endif /* CTL_IO_DELAY */ 12106 12107void 12108ctl_datamove(union ctl_io *io) 12109{ 12110 struct ctl_lun *lun; 12111 void (*fe_datamove)(union ctl_io *io); 12112 12113 mtx_assert(&control_softc->ctl_lock, MA_NOTOWNED); 12114 12115 CTL_DEBUG_PRINT(("ctl_datamove\n")); 12116 12117 lun = (struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 12118#ifdef CTL_TIME_IO 12119 if ((time_uptime - io->io_hdr.start_time) > ctl_time_io_secs) { 12120 char str[256]; 12121 char path_str[64]; 12122 struct sbuf sb; 12123 12124 ctl_scsi_path_string(io, path_str, sizeof(path_str)); 12125 sbuf_new(&sb, str, sizeof(str), SBUF_FIXEDLEN); 12126 12127 sbuf_cat(&sb, path_str); 12128 switch (io->io_hdr.io_type) { 12129 case CTL_IO_SCSI: 12130 ctl_scsi_command_string(&io->scsiio, NULL, &sb); 12131 sbuf_printf(&sb, "\n"); 12132 sbuf_cat(&sb, path_str); 12133 sbuf_printf(&sb, "Tag: 0x%04x, type %d\n", 12134 io->scsiio.tag_num, io->scsiio.tag_type); 12135 break; 12136 case CTL_IO_TASK: 12137 sbuf_printf(&sb, "Task I/O type: %d, Tag: 0x%04x, " 12138 "Tag Type: %d\n", io->taskio.task_action, 12139 io->taskio.tag_num, io->taskio.tag_type); 12140 break; 12141 default: 12142 printf("Invalid CTL I/O type %d\n", io->io_hdr.io_type); 12143 panic("Invalid CTL I/O type %d\n", io->io_hdr.io_type); 12144 break; 12145 } 12146 sbuf_cat(&sb, path_str); 12147 sbuf_printf(&sb, "ctl_datamove: %jd seconds\n", 12148 (intmax_t)time_uptime - io->io_hdr.start_time); 12149 sbuf_finish(&sb); 12150 printf("%s", sbuf_data(&sb)); 12151 } 12152#endif /* CTL_TIME_IO */ 12153 12154#ifdef CTL_IO_DELAY 12155 if (io->io_hdr.flags & CTL_FLAG_DELAY_DONE) { 12156 io->io_hdr.flags &= ~CTL_FLAG_DELAY_DONE; 12157 } else { 12158 if ((lun != NULL) 12159 && (lun->delay_info.datamove_delay > 0)) { 12160 12161 callout_init(&io->io_hdr.delay_callout, /*mpsafe*/ 1); 12162 io->io_hdr.flags |= CTL_FLAG_DELAY_DONE; 12163 callout_reset(&io->io_hdr.delay_callout, 12164 lun->delay_info.datamove_delay * hz, 12165 ctl_datamove_timer_wakeup, io); 12166 if (lun->delay_info.datamove_type == 12167 CTL_DELAY_TYPE_ONESHOT) 12168 lun->delay_info.datamove_delay = 0; 12169 return; 12170 } 12171 } 12172#endif 12173 12174 /* 12175 * This command has been aborted. Set the port status, so we fail 12176 * the data move. 12177 */ 12178 if (io->io_hdr.flags & CTL_FLAG_ABORT) { 12179 printf("ctl_datamove: tag 0x%04x on (%u:%u:%u) aborted\n", 12180 io->scsiio.tag_num, io->io_hdr.nexus.initid, 12181 io->io_hdr.nexus.targ_port, 12182 io->io_hdr.nexus.targ_lun); 12183 io->io_hdr.port_status = 31337; 12184 /* 12185 * Note that the backend, in this case, will get the 12186 * callback in its context. In other cases it may get 12187 * called in the frontend's interrupt thread context. 12188 */ 12189 io->scsiio.be_move_done(io); 12190 return; 12191 } 12192 12193 /* Don't confuse frontend with zero length data move. */ 12194 if (io->scsiio.kern_data_len == 0) { 12195 io->scsiio.be_move_done(io); 12196 return; 12197 } 12198 12199 /* 12200 * If we're in XFER mode and this I/O is from the other shelf 12201 * controller, we need to send the DMA to the other side to 12202 * actually transfer the data to/from the host. In serialize only 12203 * mode the transfer happens below CTL and ctl_datamove() is only 12204 * called on the machine that originally received the I/O. 12205 */ 12206 if ((control_softc->ha_mode == CTL_HA_MODE_XFER) 12207 && (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)) { 12208 union ctl_ha_msg msg; 12209 uint32_t sg_entries_sent; 12210 int do_sg_copy; 12211 int i; 12212 12213 memset(&msg, 0, sizeof(msg)); 12214 msg.hdr.msg_type = CTL_MSG_DATAMOVE; 12215 msg.hdr.original_sc = io->io_hdr.original_sc; 12216 msg.hdr.serializing_sc = io; 12217 msg.hdr.nexus = io->io_hdr.nexus; 12218 msg.hdr.status = io->io_hdr.status; 12219 msg.dt.flags = io->io_hdr.flags; 12220 /* 12221 * We convert everything into a S/G list here. We can't 12222 * pass by reference, only by value between controllers. 12223 * So we can't pass a pointer to the S/G list, only as many 12224 * S/G entries as we can fit in here. If it's possible for 12225 * us to get more than CTL_HA_MAX_SG_ENTRIES S/G entries, 12226 * then we need to break this up into multiple transfers. 12227 */ 12228 if (io->scsiio.kern_sg_entries == 0) { 12229 msg.dt.kern_sg_entries = 1; 12230#if 0 12231 /* 12232 * Convert to a physical address if this is a 12233 * virtual address. 12234 */ 12235 if (io->io_hdr.flags & CTL_FLAG_BUS_ADDR) { 12236 msg.dt.sg_list[0].addr = 12237 io->scsiio.kern_data_ptr; 12238 } else { 12239 /* 12240 * XXX KDM use busdma here! 12241 */ 12242 msg.dt.sg_list[0].addr = (void *) 12243 vtophys(io->scsiio.kern_data_ptr); 12244 } 12245#else 12246 KASSERT((io->io_hdr.flags & CTL_FLAG_BUS_ADDR) == 0, 12247 ("HA does not support BUS_ADDR")); 12248 msg.dt.sg_list[0].addr = io->scsiio.kern_data_ptr; 12249#endif 12250 12251 msg.dt.sg_list[0].len = io->scsiio.kern_data_len; 12252 do_sg_copy = 0; 12253 } else { 12254 msg.dt.kern_sg_entries = io->scsiio.kern_sg_entries; 12255 do_sg_copy = 1; 12256 } 12257 12258 msg.dt.kern_data_len = io->scsiio.kern_data_len; 12259 msg.dt.kern_total_len = io->scsiio.kern_total_len; 12260 msg.dt.kern_data_resid = io->scsiio.kern_data_resid; 12261 msg.dt.kern_rel_offset = io->scsiio.kern_rel_offset; 12262 msg.dt.sg_sequence = 0; 12263 12264 /* 12265 * Loop until we've sent all of the S/G entries. On the 12266 * other end, we'll recompose these S/G entries into one 12267 * contiguous list before passing it to the 12268 */ 12269 for (sg_entries_sent = 0; sg_entries_sent < 12270 msg.dt.kern_sg_entries; msg.dt.sg_sequence++) { 12271 msg.dt.cur_sg_entries = MIN((sizeof(msg.dt.sg_list)/ 12272 sizeof(msg.dt.sg_list[0])), 12273 msg.dt.kern_sg_entries - sg_entries_sent); 12274 12275 if (do_sg_copy != 0) { 12276 struct ctl_sg_entry *sgl; 12277 int j; 12278 12279 sgl = (struct ctl_sg_entry *) 12280 io->scsiio.kern_data_ptr; 12281 /* 12282 * If this is in cached memory, flush the cache 12283 * before we send the DMA request to the other 12284 * controller. We want to do this in either 12285 * the * read or the write case. The read 12286 * case is straightforward. In the write 12287 * case, we want to make sure nothing is 12288 * in the local cache that could overwrite 12289 * the DMAed data. 12290 */ 12291 12292 for (i = sg_entries_sent, j = 0; 12293 i < msg.dt.cur_sg_entries; i++, j++) { 12294#if 0 12295 if ((io->io_hdr.flags & 12296 CTL_FLAG_BUS_ADDR) == 0) { 12297 /* 12298 * XXX KDM use busdma. 12299 */ 12300 msg.dt.sg_list[j].addr =(void *) 12301 vtophys(sgl[i].addr); 12302 } else { 12303 msg.dt.sg_list[j].addr = 12304 sgl[i].addr; 12305 } 12306#else 12307 KASSERT((io->io_hdr.flags & 12308 CTL_FLAG_BUS_ADDR) == 0, 12309 ("HA does not support BUS_ADDR")); 12310 msg.dt.sg_list[j].addr = sgl[i].addr; 12311#endif 12312 msg.dt.sg_list[j].len = sgl[i].len; 12313 } 12314 } 12315 12316 sg_entries_sent += msg.dt.cur_sg_entries; 12317 if (sg_entries_sent >= msg.dt.kern_sg_entries) 12318 msg.dt.sg_last = 1; 12319 else 12320 msg.dt.sg_last = 0; 12321 12322 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, 12323 sizeof(msg.dt) - sizeof(msg.dt.sg_list) + 12324 sizeof(struct ctl_sg_entry)*msg.dt.cur_sg_entries, 12325 M_WAITOK) > CTL_HA_STATUS_SUCCESS) { 12326 io->io_hdr.port_status = 31341; 12327 io->scsiio.be_move_done(io); 12328 return; 12329 } 12330 12331 msg.dt.sent_sg_entries = sg_entries_sent; 12332 } 12333 12334 /* 12335 * Officially handover the request from us to peer. 12336 * If failover has just happened, then we must return error. 12337 * If failover happen just after, then it is not our problem. 12338 */ 12339 if (lun) 12340 mtx_lock(&lun->lun_lock); 12341 if (io->io_hdr.flags & CTL_FLAG_FAILOVER) { 12342 if (lun) 12343 mtx_unlock(&lun->lun_lock); 12344 io->io_hdr.port_status = 31342; 12345 io->scsiio.be_move_done(io); 12346 return; 12347 } 12348 io->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 12349 if (lun) 12350 mtx_unlock(&lun->lun_lock); 12351 } else { 12352 12353 /* 12354 * Lookup the fe_datamove() function for this particular 12355 * front end. 12356 */ 12357 fe_datamove = ctl_io_port(&io->io_hdr)->fe_datamove; 12358 12359 fe_datamove(io); 12360 } 12361} 12362 12363static void 12364ctl_send_datamove_done(union ctl_io *io, int have_lock) 12365{ 12366 union ctl_ha_msg msg; 12367 12368 memset(&msg, 0, sizeof(msg)); 12369 12370 msg.hdr.msg_type = CTL_MSG_DATAMOVE_DONE; 12371 msg.hdr.original_sc = io; 12372 msg.hdr.serializing_sc = io->io_hdr.serializing_sc; 12373 msg.hdr.nexus = io->io_hdr.nexus; 12374 msg.hdr.status = io->io_hdr.status; 12375 msg.scsi.tag_num = io->scsiio.tag_num; 12376 msg.scsi.tag_type = io->scsiio.tag_type; 12377 msg.scsi.scsi_status = io->scsiio.scsi_status; 12378 memcpy(&msg.scsi.sense_data, &io->scsiio.sense_data, 12379 io->scsiio.sense_len); 12380 msg.scsi.sense_len = io->scsiio.sense_len; 12381 msg.scsi.sense_residual = io->scsiio.sense_residual; 12382 msg.scsi.fetd_status = io->io_hdr.port_status; 12383 msg.scsi.residual = io->scsiio.residual; 12384 io->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 12385 12386 if (io->io_hdr.flags & CTL_FLAG_FAILOVER) { 12387 ctl_failover_io(io, /*have_lock*/ have_lock); 12388 return; 12389 } 12390 12391 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, 12392 sizeof(msg.scsi) - sizeof(msg.scsi.sense_data) + 12393 msg.scsi.sense_len, M_WAITOK); 12394} 12395 12396/* 12397 * The DMA to the remote side is done, now we need to tell the other side 12398 * we're done so it can continue with its data movement. 12399 */ 12400static void 12401ctl_datamove_remote_write_cb(struct ctl_ha_dt_req *rq) 12402{ 12403 union ctl_io *io; 12404 int i; 12405 12406 io = rq->context; 12407 12408 if (rq->ret != CTL_HA_STATUS_SUCCESS) { 12409 printf("%s: ISC DMA write failed with error %d", __func__, 12410 rq->ret); 12411 ctl_set_internal_failure(&io->scsiio, 12412 /*sks_valid*/ 1, 12413 /*retry_count*/ rq->ret); 12414 } 12415 12416 ctl_dt_req_free(rq); 12417 12418 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 12419 free(io->io_hdr.local_sglist[i].addr, M_CTL); 12420 free(io->io_hdr.remote_sglist, M_CTL); 12421 io->io_hdr.remote_sglist = NULL; 12422 io->io_hdr.local_sglist = NULL; 12423 12424 /* 12425 * The data is in local and remote memory, so now we need to send 12426 * status (good or back) back to the other side. 12427 */ 12428 ctl_send_datamove_done(io, /*have_lock*/ 0); 12429} 12430 12431/* 12432 * We've moved the data from the host/controller into local memory. Now we 12433 * need to push it over to the remote controller's memory. 12434 */ 12435static int 12436ctl_datamove_remote_dm_write_cb(union ctl_io *io) 12437{ 12438 int retval; 12439 12440 retval = 0; 12441 12442 retval = ctl_datamove_remote_xfer(io, CTL_HA_DT_CMD_WRITE, 12443 ctl_datamove_remote_write_cb); 12444 12445 return (retval); 12446} 12447 12448static void 12449ctl_datamove_remote_write(union ctl_io *io) 12450{ 12451 int retval; 12452 void (*fe_datamove)(union ctl_io *io); 12453 12454 /* 12455 * - Get the data from the host/HBA into local memory. 12456 * - DMA memory from the local controller to the remote controller. 12457 * - Send status back to the remote controller. 12458 */ 12459 12460 retval = ctl_datamove_remote_sgl_setup(io); 12461 if (retval != 0) 12462 return; 12463 12464 /* Switch the pointer over so the FETD knows what to do */ 12465 io->scsiio.kern_data_ptr = (uint8_t *)io->io_hdr.local_sglist; 12466 12467 /* 12468 * Use a custom move done callback, since we need to send completion 12469 * back to the other controller, not to the backend on this side. 12470 */ 12471 io->scsiio.be_move_done = ctl_datamove_remote_dm_write_cb; 12472 12473 fe_datamove = ctl_io_port(&io->io_hdr)->fe_datamove; 12474 12475 fe_datamove(io); 12476 12477 return; 12478 12479} 12480 12481static int 12482ctl_datamove_remote_dm_read_cb(union ctl_io *io) 12483{ 12484#if 0 12485 char str[256]; 12486 char path_str[64]; 12487 struct sbuf sb; 12488#endif 12489 int i; 12490 12491 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 12492 free(io->io_hdr.local_sglist[i].addr, M_CTL); 12493 free(io->io_hdr.remote_sglist, M_CTL); 12494 io->io_hdr.remote_sglist = NULL; 12495 io->io_hdr.local_sglist = NULL; 12496 12497#if 0 12498 scsi_path_string(io, path_str, sizeof(path_str)); 12499 sbuf_new(&sb, str, sizeof(str), SBUF_FIXEDLEN); 12500 sbuf_cat(&sb, path_str); 12501 scsi_command_string(&io->scsiio, NULL, &sb); 12502 sbuf_printf(&sb, "\n"); 12503 sbuf_cat(&sb, path_str); 12504 sbuf_printf(&sb, "Tag: 0x%04x, type %d\n", 12505 io->scsiio.tag_num, io->scsiio.tag_type); 12506 sbuf_cat(&sb, path_str); 12507 sbuf_printf(&sb, "%s: flags %#x, status %#x\n", __func__, 12508 io->io_hdr.flags, io->io_hdr.status); 12509 sbuf_finish(&sb); 12510 printk("%s", sbuf_data(&sb)); 12511#endif 12512 12513 12514 /* 12515 * The read is done, now we need to send status (good or bad) back 12516 * to the other side. 12517 */ 12518 ctl_send_datamove_done(io, /*have_lock*/ 0); 12519 12520 return (0); 12521} 12522 12523static void 12524ctl_datamove_remote_read_cb(struct ctl_ha_dt_req *rq) 12525{ 12526 union ctl_io *io; 12527 void (*fe_datamove)(union ctl_io *io); 12528 12529 io = rq->context; 12530 12531 if (rq->ret != CTL_HA_STATUS_SUCCESS) { 12532 printf("%s: ISC DMA read failed with error %d\n", __func__, 12533 rq->ret); 12534 ctl_set_internal_failure(&io->scsiio, 12535 /*sks_valid*/ 1, 12536 /*retry_count*/ rq->ret); 12537 } 12538 12539 ctl_dt_req_free(rq); 12540 12541 /* Switch the pointer over so the FETD knows what to do */ 12542 io->scsiio.kern_data_ptr = (uint8_t *)io->io_hdr.local_sglist; 12543 12544 /* 12545 * Use a custom move done callback, since we need to send completion 12546 * back to the other controller, not to the backend on this side. 12547 */ 12548 io->scsiio.be_move_done = ctl_datamove_remote_dm_read_cb; 12549 12550 /* XXX KDM add checks like the ones in ctl_datamove? */ 12551 12552 fe_datamove = ctl_io_port(&io->io_hdr)->fe_datamove; 12553 12554 fe_datamove(io); 12555} 12556 12557static int 12558ctl_datamove_remote_sgl_setup(union ctl_io *io) 12559{ 12560 struct ctl_sg_entry *local_sglist, *remote_sglist; 12561 struct ctl_softc *softc; 12562 uint32_t len_to_go; 12563 int retval; 12564 int i; 12565 12566 retval = 0; 12567 softc = control_softc; 12568 local_sglist = io->io_hdr.local_sglist; 12569 remote_sglist = io->io_hdr.remote_sglist; 12570 len_to_go = io->scsiio.kern_data_len; 12571 12572 /* 12573 * The difficult thing here is that the size of the various 12574 * S/G segments may be different than the size from the 12575 * remote controller. That'll make it harder when DMAing 12576 * the data back to the other side. 12577 */ 12578 for (i = 0; len_to_go > 0; i++) { 12579 local_sglist[i].len = MIN(len_to_go, CTL_HA_DATAMOVE_SEGMENT); 12580 local_sglist[i].addr = 12581 malloc(local_sglist[i].len, M_CTL, M_WAITOK); 12582 12583 len_to_go -= local_sglist[i].len; 12584 } 12585 /* 12586 * Reset the number of S/G entries accordingly. The original 12587 * number of S/G entries is available in rem_sg_entries. 12588 */ 12589 io->scsiio.kern_sg_entries = i; 12590 12591#if 0 12592 printf("%s: kern_sg_entries = %d\n", __func__, 12593 io->scsiio.kern_sg_entries); 12594 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 12595 printf("%s: sg[%d] = %p, %d\n", __func__, i, 12596 local_sglist[i].addr, local_sglist[i].len); 12597#endif 12598 12599 return (retval); 12600} 12601 12602static int 12603ctl_datamove_remote_xfer(union ctl_io *io, unsigned command, 12604 ctl_ha_dt_cb callback) 12605{ 12606 struct ctl_ha_dt_req *rq; 12607 struct ctl_sg_entry *remote_sglist, *local_sglist; 12608 uint32_t local_used, remote_used, total_used; 12609 int i, j, isc_ret; 12610 12611 rq = ctl_dt_req_alloc(); 12612 12613 /* 12614 * If we failed to allocate the request, and if the DMA didn't fail 12615 * anyway, set busy status. This is just a resource allocation 12616 * failure. 12617 */ 12618 if ((rq == NULL) 12619 && ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE && 12620 (io->io_hdr.status & CTL_STATUS_MASK) != CTL_SUCCESS)) 12621 ctl_set_busy(&io->scsiio); 12622 12623 if ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE && 12624 (io->io_hdr.status & CTL_STATUS_MASK) != CTL_SUCCESS) { 12625 12626 if (rq != NULL) 12627 ctl_dt_req_free(rq); 12628 12629 /* 12630 * The data move failed. We need to return status back 12631 * to the other controller. No point in trying to DMA 12632 * data to the remote controller. 12633 */ 12634 12635 ctl_send_datamove_done(io, /*have_lock*/ 0); 12636 12637 return (1); 12638 } 12639 12640 local_sglist = io->io_hdr.local_sglist; 12641 remote_sglist = io->io_hdr.remote_sglist; 12642 local_used = 0; 12643 remote_used = 0; 12644 total_used = 0; 12645 12646 /* 12647 * Pull/push the data over the wire from/to the other controller. 12648 * This takes into account the possibility that the local and 12649 * remote sglists may not be identical in terms of the size of 12650 * the elements and the number of elements. 12651 * 12652 * One fundamental assumption here is that the length allocated for 12653 * both the local and remote sglists is identical. Otherwise, we've 12654 * essentially got a coding error of some sort. 12655 */ 12656 isc_ret = CTL_HA_STATUS_SUCCESS; 12657 for (i = 0, j = 0; total_used < io->scsiio.kern_data_len; ) { 12658 uint32_t cur_len; 12659 uint8_t *tmp_ptr; 12660 12661 rq->command = command; 12662 rq->context = io; 12663 12664 /* 12665 * Both pointers should be aligned. But it is possible 12666 * that the allocation length is not. They should both 12667 * also have enough slack left over at the end, though, 12668 * to round up to the next 8 byte boundary. 12669 */ 12670 cur_len = MIN(local_sglist[i].len - local_used, 12671 remote_sglist[j].len - remote_used); 12672 rq->size = cur_len; 12673 12674 tmp_ptr = (uint8_t *)local_sglist[i].addr; 12675 tmp_ptr += local_used; 12676 12677#if 0 12678 /* Use physical addresses when talking to ISC hardware */ 12679 if ((io->io_hdr.flags & CTL_FLAG_BUS_ADDR) == 0) { 12680 /* XXX KDM use busdma */ 12681 rq->local = vtophys(tmp_ptr); 12682 } else 12683 rq->local = tmp_ptr; 12684#else 12685 KASSERT((io->io_hdr.flags & CTL_FLAG_BUS_ADDR) == 0, 12686 ("HA does not support BUS_ADDR")); 12687 rq->local = tmp_ptr; 12688#endif 12689 12690 tmp_ptr = (uint8_t *)remote_sglist[j].addr; 12691 tmp_ptr += remote_used; 12692 rq->remote = tmp_ptr; 12693 12694 rq->callback = NULL; 12695 12696 local_used += cur_len; 12697 if (local_used >= local_sglist[i].len) { 12698 i++; 12699 local_used = 0; 12700 } 12701 12702 remote_used += cur_len; 12703 if (remote_used >= remote_sglist[j].len) { 12704 j++; 12705 remote_used = 0; 12706 } 12707 total_used += cur_len; 12708 12709 if (total_used >= io->scsiio.kern_data_len) 12710 rq->callback = callback; 12711 12712#if 0 12713 printf("%s: %s: local %#x remote %#x size %d\n", __func__, 12714 (command == CTL_HA_DT_CMD_WRITE) ? "WRITE" : "READ", 12715 rq->local, rq->remote, rq->size); 12716#endif 12717 12718 isc_ret = ctl_dt_single(rq); 12719 if (isc_ret > CTL_HA_STATUS_SUCCESS) 12720 break; 12721 } 12722 if (isc_ret != CTL_HA_STATUS_WAIT) { 12723 rq->ret = isc_ret; 12724 callback(rq); 12725 } 12726 12727 return (0); 12728} 12729 12730static void 12731ctl_datamove_remote_read(union ctl_io *io) 12732{ 12733 int retval; 12734 int i; 12735 12736 /* 12737 * This will send an error to the other controller in the case of a 12738 * failure. 12739 */ 12740 retval = ctl_datamove_remote_sgl_setup(io); 12741 if (retval != 0) 12742 return; 12743 12744 retval = ctl_datamove_remote_xfer(io, CTL_HA_DT_CMD_READ, 12745 ctl_datamove_remote_read_cb); 12746 if (retval != 0) { 12747 /* 12748 * Make sure we free memory if there was an error.. The 12749 * ctl_datamove_remote_xfer() function will send the 12750 * datamove done message, or call the callback with an 12751 * error if there is a problem. 12752 */ 12753 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 12754 free(io->io_hdr.local_sglist[i].addr, M_CTL); 12755 free(io->io_hdr.remote_sglist, M_CTL); 12756 io->io_hdr.remote_sglist = NULL; 12757 io->io_hdr.local_sglist = NULL; 12758 } 12759 12760 return; 12761} 12762 12763/* 12764 * Process a datamove request from the other controller. This is used for 12765 * XFER mode only, not SER_ONLY mode. For writes, we DMA into local memory 12766 * first. Once that is complete, the data gets DMAed into the remote 12767 * controller's memory. For reads, we DMA from the remote controller's 12768 * memory into our memory first, and then move it out to the FETD. 12769 */ 12770static void 12771ctl_datamove_remote(union ctl_io *io) 12772{ 12773 12774 mtx_assert(&control_softc->ctl_lock, MA_NOTOWNED); 12775 12776 if (io->io_hdr.flags & CTL_FLAG_FAILOVER) { 12777 ctl_failover_io(io, /*have_lock*/ 0); 12778 return; 12779 } 12780 12781 /* 12782 * Note that we look for an aborted I/O here, but don't do some of 12783 * the other checks that ctl_datamove() normally does. 12784 * We don't need to run the datamove delay code, since that should 12785 * have been done if need be on the other controller. 12786 */ 12787 if (io->io_hdr.flags & CTL_FLAG_ABORT) { 12788 printf("%s: tag 0x%04x on (%u:%u:%u) aborted\n", __func__, 12789 io->scsiio.tag_num, io->io_hdr.nexus.initid, 12790 io->io_hdr.nexus.targ_port, 12791 io->io_hdr.nexus.targ_lun); 12792 io->io_hdr.port_status = 31338; 12793 ctl_send_datamove_done(io, /*have_lock*/ 0); 12794 return; 12795 } 12796 12797 if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_OUT) 12798 ctl_datamove_remote_write(io); 12799 else if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_IN) 12800 ctl_datamove_remote_read(io); 12801 else { 12802 io->io_hdr.port_status = 31339; 12803 ctl_send_datamove_done(io, /*have_lock*/ 0); 12804 } 12805} 12806 12807static int 12808ctl_process_done(union ctl_io *io) 12809{ 12810 struct ctl_lun *lun; 12811 struct ctl_softc *softc = control_softc; 12812 void (*fe_done)(union ctl_io *io); 12813 union ctl_ha_msg msg; 12814 uint32_t targ_port = io->io_hdr.nexus.targ_port; 12815 12816 CTL_DEBUG_PRINT(("ctl_process_done\n")); 12817 12818 if ((io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) == 0) 12819 fe_done = softc->ctl_ports[targ_port]->fe_done; 12820 else 12821 fe_done = NULL; 12822 12823#ifdef CTL_TIME_IO 12824 if ((time_uptime - io->io_hdr.start_time) > ctl_time_io_secs) { 12825 char str[256]; 12826 char path_str[64]; 12827 struct sbuf sb; 12828 12829 ctl_scsi_path_string(io, path_str, sizeof(path_str)); 12830 sbuf_new(&sb, str, sizeof(str), SBUF_FIXEDLEN); 12831 12832 sbuf_cat(&sb, path_str); 12833 switch (io->io_hdr.io_type) { 12834 case CTL_IO_SCSI: 12835 ctl_scsi_command_string(&io->scsiio, NULL, &sb); 12836 sbuf_printf(&sb, "\n"); 12837 sbuf_cat(&sb, path_str); 12838 sbuf_printf(&sb, "Tag: 0x%04x, type %d\n", 12839 io->scsiio.tag_num, io->scsiio.tag_type); 12840 break; 12841 case CTL_IO_TASK: 12842 sbuf_printf(&sb, "Task I/O type: %d, Tag: 0x%04x, " 12843 "Tag Type: %d\n", io->taskio.task_action, 12844 io->taskio.tag_num, io->taskio.tag_type); 12845 break; 12846 default: 12847 printf("Invalid CTL I/O type %d\n", io->io_hdr.io_type); 12848 panic("Invalid CTL I/O type %d\n", io->io_hdr.io_type); 12849 break; 12850 } 12851 sbuf_cat(&sb, path_str); 12852 sbuf_printf(&sb, "ctl_process_done: %jd seconds\n", 12853 (intmax_t)time_uptime - io->io_hdr.start_time); 12854 sbuf_finish(&sb); 12855 printf("%s", sbuf_data(&sb)); 12856 } 12857#endif /* CTL_TIME_IO */ 12858 12859 switch (io->io_hdr.io_type) { 12860 case CTL_IO_SCSI: 12861 break; 12862 case CTL_IO_TASK: 12863 if (ctl_debug & CTL_DEBUG_INFO) 12864 ctl_io_error_print(io, NULL); 12865 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) 12866 ctl_free_io(io); 12867 else 12868 fe_done(io); 12869 return (CTL_RETVAL_COMPLETE); 12870 default: 12871 panic("ctl_process_done: invalid io type %d\n", 12872 io->io_hdr.io_type); 12873 break; /* NOTREACHED */ 12874 } 12875 12876 lun = (struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 12877 if (lun == NULL) { 12878 CTL_DEBUG_PRINT(("NULL LUN for lun %d\n", 12879 io->io_hdr.nexus.targ_mapped_lun)); 12880 goto bailout; 12881 } 12882 12883 mtx_lock(&lun->lun_lock); 12884 12885 /* 12886 * Check to see if we have any errors to inject here. We only 12887 * inject errors for commands that don't already have errors set. 12888 */ 12889 if ((STAILQ_FIRST(&lun->error_list) != NULL) && 12890 ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS) && 12891 ((io->io_hdr.flags & CTL_FLAG_STATUS_SENT) == 0)) 12892 ctl_inject_error(lun, io); 12893 12894 /* 12895 * XXX KDM how do we treat commands that aren't completed 12896 * successfully? 12897 * 12898 * XXX KDM should we also track I/O latency? 12899 */ 12900 if ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS && 12901 io->io_hdr.io_type == CTL_IO_SCSI) { 12902#ifdef CTL_TIME_IO 12903 struct bintime cur_bt; 12904#endif 12905 int type; 12906 12907 if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == 12908 CTL_FLAG_DATA_IN) 12909 type = CTL_STATS_READ; 12910 else if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == 12911 CTL_FLAG_DATA_OUT) 12912 type = CTL_STATS_WRITE; 12913 else 12914 type = CTL_STATS_NO_IO; 12915 12916 lun->stats.ports[targ_port].bytes[type] += 12917 io->scsiio.kern_total_len; 12918 lun->stats.ports[targ_port].operations[type]++; 12919#ifdef CTL_TIME_IO 12920 bintime_add(&lun->stats.ports[targ_port].dma_time[type], 12921 &io->io_hdr.dma_bt); 12922 lun->stats.ports[targ_port].num_dmas[type] += 12923 io->io_hdr.num_dmas; 12924 getbintime(&cur_bt); 12925 bintime_sub(&cur_bt, &io->io_hdr.start_bt); 12926 bintime_add(&lun->stats.ports[targ_port].time[type], &cur_bt); 12927#endif 12928 } 12929 12930 /* 12931 * Remove this from the OOA queue. 12932 */ 12933 TAILQ_REMOVE(&lun->ooa_queue, &io->io_hdr, ooa_links); 12934#ifdef CTL_TIME_IO 12935 if (TAILQ_EMPTY(&lun->ooa_queue)) 12936 lun->last_busy = getsbinuptime(); 12937#endif 12938 12939 /* 12940 * Run through the blocked queue on this LUN and see if anything 12941 * has become unblocked, now that this transaction is done. 12942 */ 12943 ctl_check_blocked(lun); 12944 12945 /* 12946 * If the LUN has been invalidated, free it if there is nothing 12947 * left on its OOA queue. 12948 */ 12949 if ((lun->flags & CTL_LUN_INVALID) 12950 && TAILQ_EMPTY(&lun->ooa_queue)) { 12951 mtx_unlock(&lun->lun_lock); 12952 mtx_lock(&softc->ctl_lock); 12953 ctl_free_lun(lun); 12954 mtx_unlock(&softc->ctl_lock); 12955 } else 12956 mtx_unlock(&lun->lun_lock); 12957 12958bailout: 12959 12960 /* 12961 * If this command has been aborted, make sure we set the status 12962 * properly. The FETD is responsible for freeing the I/O and doing 12963 * whatever it needs to do to clean up its state. 12964 */ 12965 if (io->io_hdr.flags & CTL_FLAG_ABORT) 12966 ctl_set_task_aborted(&io->scsiio); 12967 12968 /* 12969 * If enabled, print command error status. 12970 */ 12971 if ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_SUCCESS && 12972 (ctl_debug & CTL_DEBUG_INFO) != 0) 12973 ctl_io_error_print(io, NULL); 12974 12975 /* 12976 * Tell the FETD or the other shelf controller we're done with this 12977 * command. Note that only SCSI commands get to this point. Task 12978 * management commands are completed above. 12979 */ 12980 if ((softc->ha_mode != CTL_HA_MODE_XFER) && 12981 (io->io_hdr.flags & CTL_FLAG_SENT_2OTHER_SC)) { 12982 memset(&msg, 0, sizeof(msg)); 12983 msg.hdr.msg_type = CTL_MSG_FINISH_IO; 12984 msg.hdr.serializing_sc = io->io_hdr.serializing_sc; 12985 msg.hdr.nexus = io->io_hdr.nexus; 12986 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, 12987 sizeof(msg.scsi) - sizeof(msg.scsi.sense_data), 12988 M_WAITOK); 12989 } 12990 if ((softc->ha_mode == CTL_HA_MODE_XFER) 12991 && (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)) { 12992 memset(&msg, 0, sizeof(msg)); 12993 msg.hdr.msg_type = CTL_MSG_FINISH_IO; 12994 msg.hdr.original_sc = io->io_hdr.original_sc; 12995 msg.hdr.nexus = io->io_hdr.nexus; 12996 msg.hdr.status = io->io_hdr.status; 12997 msg.scsi.scsi_status = io->scsiio.scsi_status; 12998 msg.scsi.tag_num = io->scsiio.tag_num; 12999 msg.scsi.tag_type = io->scsiio.tag_type; 13000 msg.scsi.sense_len = io->scsiio.sense_len; 13001 msg.scsi.sense_residual = io->scsiio.sense_residual; 13002 msg.scsi.residual = io->scsiio.residual; 13003 memcpy(&msg.scsi.sense_data, &io->scsiio.sense_data, 13004 io->scsiio.sense_len); 13005 13006 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, 13007 sizeof(msg.scsi) - sizeof(msg.scsi.sense_data) + 13008 msg.scsi.sense_len, M_WAITOK); 13009 ctl_free_io(io); 13010 } else 13011 fe_done(io); 13012 13013 return (CTL_RETVAL_COMPLETE); 13014} 13015 13016#ifdef CTL_WITH_CA 13017/* 13018 * Front end should call this if it doesn't do autosense. When the request 13019 * sense comes back in from the initiator, we'll dequeue this and send it. 13020 */ 13021int 13022ctl_queue_sense(union ctl_io *io) 13023{ 13024 struct ctl_lun *lun; 13025 struct ctl_port *port; 13026 struct ctl_softc *softc; 13027 uint32_t initidx, targ_lun; 13028 13029 softc = control_softc; 13030 13031 CTL_DEBUG_PRINT(("ctl_queue_sense\n")); 13032 13033 /* 13034 * LUN lookup will likely move to the ctl_work_thread() once we 13035 * have our new queueing infrastructure (that doesn't put things on 13036 * a per-LUN queue initially). That is so that we can handle 13037 * things like an INQUIRY to a LUN that we don't have enabled. We 13038 * can't deal with that right now. 13039 */ 13040 mtx_lock(&softc->ctl_lock); 13041 13042 /* 13043 * If we don't have a LUN for this, just toss the sense 13044 * information. 13045 */ 13046 port = ctl_io_port(&ctsio->io_hdr); 13047 targ_lun = ctl_lun_map_from_port(port, io->io_hdr.nexus.targ_lun); 13048 if ((targ_lun < CTL_MAX_LUNS) 13049 && (softc->ctl_luns[targ_lun] != NULL)) 13050 lun = softc->ctl_luns[targ_lun]; 13051 else 13052 goto bailout; 13053 13054 initidx = ctl_get_initindex(&io->io_hdr.nexus); 13055 13056 mtx_lock(&lun->lun_lock); 13057 /* 13058 * Already have CA set for this LUN...toss the sense information. 13059 */ 13060 if (ctl_is_set(lun->have_ca, initidx)) { 13061 mtx_unlock(&lun->lun_lock); 13062 goto bailout; 13063 } 13064 13065 memcpy(&lun->pending_sense[initidx], &io->scsiio.sense_data, 13066 MIN(sizeof(lun->pending_sense[initidx]), 13067 sizeof(io->scsiio.sense_data))); 13068 ctl_set_mask(lun->have_ca, initidx); 13069 mtx_unlock(&lun->lun_lock); 13070 13071bailout: 13072 mtx_unlock(&softc->ctl_lock); 13073 13074 ctl_free_io(io); 13075 13076 return (CTL_RETVAL_COMPLETE); 13077} 13078#endif 13079 13080/* 13081 * Primary command inlet from frontend ports. All SCSI and task I/O 13082 * requests must go through this function. 13083 */ 13084int 13085ctl_queue(union ctl_io *io) 13086{ 13087 struct ctl_port *port; 13088 13089 CTL_DEBUG_PRINT(("ctl_queue cdb[0]=%02X\n", io->scsiio.cdb[0])); 13090 13091#ifdef CTL_TIME_IO 13092 io->io_hdr.start_time = time_uptime; 13093 getbintime(&io->io_hdr.start_bt); 13094#endif /* CTL_TIME_IO */ 13095 13096 /* Map FE-specific LUN ID into global one. */ 13097 port = ctl_io_port(&io->io_hdr); 13098 io->io_hdr.nexus.targ_mapped_lun = 13099 ctl_lun_map_from_port(port, io->io_hdr.nexus.targ_lun); 13100 13101 switch (io->io_hdr.io_type) { 13102 case CTL_IO_SCSI: 13103 case CTL_IO_TASK: 13104 if (ctl_debug & CTL_DEBUG_CDB) 13105 ctl_io_print(io); 13106 ctl_enqueue_incoming(io); 13107 break; 13108 default: 13109 printf("ctl_queue: unknown I/O type %d\n", io->io_hdr.io_type); 13110 return (EINVAL); 13111 } 13112 13113 return (CTL_RETVAL_COMPLETE); 13114} 13115 13116#ifdef CTL_IO_DELAY 13117static void 13118ctl_done_timer_wakeup(void *arg) 13119{ 13120 union ctl_io *io; 13121 13122 io = (union ctl_io *)arg; 13123 ctl_done(io); 13124} 13125#endif /* CTL_IO_DELAY */ 13126 13127void 13128ctl_done(union ctl_io *io) 13129{ 13130 13131 /* 13132 * Enable this to catch duplicate completion issues. 13133 */ 13134#if 0 13135 if (io->io_hdr.flags & CTL_FLAG_ALREADY_DONE) { 13136 printf("%s: type %d msg %d cdb %x iptl: " 13137 "%u:%u:%u tag 0x%04x " 13138 "flag %#x status %x\n", 13139 __func__, 13140 io->io_hdr.io_type, 13141 io->io_hdr.msg_type, 13142 io->scsiio.cdb[0], 13143 io->io_hdr.nexus.initid, 13144 io->io_hdr.nexus.targ_port, 13145 io->io_hdr.nexus.targ_lun, 13146 (io->io_hdr.io_type == 13147 CTL_IO_TASK) ? 13148 io->taskio.tag_num : 13149 io->scsiio.tag_num, 13150 io->io_hdr.flags, 13151 io->io_hdr.status); 13152 } else 13153 io->io_hdr.flags |= CTL_FLAG_ALREADY_DONE; 13154#endif 13155 13156 /* 13157 * This is an internal copy of an I/O, and should not go through 13158 * the normal done processing logic. 13159 */ 13160 if (io->io_hdr.flags & CTL_FLAG_INT_COPY) 13161 return; 13162 13163#ifdef CTL_IO_DELAY 13164 if (io->io_hdr.flags & CTL_FLAG_DELAY_DONE) { 13165 struct ctl_lun *lun; 13166 13167 lun =(struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 13168 13169 io->io_hdr.flags &= ~CTL_FLAG_DELAY_DONE; 13170 } else { 13171 struct ctl_lun *lun; 13172 13173 lun =(struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 13174 13175 if ((lun != NULL) 13176 && (lun->delay_info.done_delay > 0)) { 13177 13178 callout_init(&io->io_hdr.delay_callout, /*mpsafe*/ 1); 13179 io->io_hdr.flags |= CTL_FLAG_DELAY_DONE; 13180 callout_reset(&io->io_hdr.delay_callout, 13181 lun->delay_info.done_delay * hz, 13182 ctl_done_timer_wakeup, io); 13183 if (lun->delay_info.done_type == CTL_DELAY_TYPE_ONESHOT) 13184 lun->delay_info.done_delay = 0; 13185 return; 13186 } 13187 } 13188#endif /* CTL_IO_DELAY */ 13189 13190 ctl_enqueue_done(io); 13191} 13192 13193static void 13194ctl_work_thread(void *arg) 13195{ 13196 struct ctl_thread *thr = (struct ctl_thread *)arg; 13197 struct ctl_softc *softc = thr->ctl_softc; 13198 union ctl_io *io; 13199 int retval; 13200 13201 CTL_DEBUG_PRINT(("ctl_work_thread starting\n")); 13202 13203 for (;;) { 13204 retval = 0; 13205 13206 /* 13207 * We handle the queues in this order: 13208 * - ISC 13209 * - done queue (to free up resources, unblock other commands) 13210 * - RtR queue 13211 * - incoming queue 13212 * 13213 * If those queues are empty, we break out of the loop and 13214 * go to sleep. 13215 */ 13216 mtx_lock(&thr->queue_lock); 13217 io = (union ctl_io *)STAILQ_FIRST(&thr->isc_queue); 13218 if (io != NULL) { 13219 STAILQ_REMOVE_HEAD(&thr->isc_queue, links); 13220 mtx_unlock(&thr->queue_lock); 13221 ctl_handle_isc(io); 13222 continue; 13223 } 13224 io = (union ctl_io *)STAILQ_FIRST(&thr->done_queue); 13225 if (io != NULL) { 13226 STAILQ_REMOVE_HEAD(&thr->done_queue, links); 13227 /* clear any blocked commands, call fe_done */ 13228 mtx_unlock(&thr->queue_lock); 13229 retval = ctl_process_done(io); 13230 continue; 13231 } 13232 io = (union ctl_io *)STAILQ_FIRST(&thr->incoming_queue); 13233 if (io != NULL) { 13234 STAILQ_REMOVE_HEAD(&thr->incoming_queue, links); 13235 mtx_unlock(&thr->queue_lock); 13236 if (io->io_hdr.io_type == CTL_IO_TASK) 13237 ctl_run_task(io); 13238 else 13239 ctl_scsiio_precheck(softc, &io->scsiio); 13240 continue; 13241 } 13242 io = (union ctl_io *)STAILQ_FIRST(&thr->rtr_queue); 13243 if (io != NULL) { 13244 STAILQ_REMOVE_HEAD(&thr->rtr_queue, links); 13245 mtx_unlock(&thr->queue_lock); 13246 retval = ctl_scsiio(&io->scsiio); 13247 if (retval != CTL_RETVAL_COMPLETE) 13248 CTL_DEBUG_PRINT(("ctl_scsiio failed\n")); 13249 continue; 13250 } 13251 13252 /* Sleep until we have something to do. */ 13253 mtx_sleep(thr, &thr->queue_lock, PDROP | PRIBIO, "-", 0); 13254 } 13255} 13256 13257static void 13258ctl_lun_thread(void *arg) 13259{ 13260 struct ctl_softc *softc = (struct ctl_softc *)arg; 13261 struct ctl_be_lun *be_lun; 13262 int retval; 13263 13264 CTL_DEBUG_PRINT(("ctl_lun_thread starting\n")); 13265 13266 for (;;) { 13267 retval = 0; 13268 mtx_lock(&softc->ctl_lock); 13269 be_lun = STAILQ_FIRST(&softc->pending_lun_queue); 13270 if (be_lun != NULL) { 13271 STAILQ_REMOVE_HEAD(&softc->pending_lun_queue, links); 13272 mtx_unlock(&softc->ctl_lock); 13273 ctl_create_lun(be_lun); 13274 continue; 13275 } 13276 13277 /* Sleep until we have something to do. */ 13278 mtx_sleep(&softc->pending_lun_queue, &softc->ctl_lock, 13279 PDROP | PRIBIO, "-", 0); 13280 } 13281} 13282 13283static void 13284ctl_thresh_thread(void *arg) 13285{ 13286 struct ctl_softc *softc = (struct ctl_softc *)arg; 13287 struct ctl_lun *lun; 13288 struct ctl_be_lun *be_lun; 13289 struct scsi_da_rw_recovery_page *rwpage; 13290 struct ctl_logical_block_provisioning_page *page; 13291 const char *attr; 13292 union ctl_ha_msg msg; 13293 uint64_t thres, val; 13294 int i, e, set; 13295 13296 CTL_DEBUG_PRINT(("ctl_thresh_thread starting\n")); 13297 13298 for (;;) { 13299 mtx_lock(&softc->ctl_lock); 13300 STAILQ_FOREACH(lun, &softc->lun_list, links) { 13301 be_lun = lun->be_lun; 13302 if ((lun->flags & CTL_LUN_DISABLED) || 13303 (lun->flags & CTL_LUN_OFFLINE) || 13304 lun->backend->lun_attr == NULL) 13305 continue; 13306 if ((lun->flags & CTL_LUN_PRIMARY_SC) == 0 && 13307 softc->ha_mode == CTL_HA_MODE_XFER) 13308 continue; 13309 rwpage = &lun->mode_pages.rw_er_page[CTL_PAGE_CURRENT]; 13310 if ((rwpage->byte8 & SMS_RWER_LBPERE) == 0) 13311 continue; 13312 e = 0; 13313 page = &lun->mode_pages.lbp_page[CTL_PAGE_CURRENT]; 13314 for (i = 0; i < CTL_NUM_LBP_THRESH; i++) { 13315 if ((page->descr[i].flags & SLBPPD_ENABLED) == 0) 13316 continue; 13317 thres = scsi_4btoul(page->descr[i].count); 13318 thres <<= CTL_LBP_EXPONENT; 13319 switch (page->descr[i].resource) { 13320 case 0x01: 13321 attr = "blocksavail"; 13322 break; 13323 case 0x02: 13324 attr = "blocksused"; 13325 break; 13326 case 0xf1: 13327 attr = "poolblocksavail"; 13328 break; 13329 case 0xf2: 13330 attr = "poolblocksused"; 13331 break; 13332 default: 13333 continue; 13334 } 13335 mtx_unlock(&softc->ctl_lock); // XXX 13336 val = lun->backend->lun_attr( 13337 lun->be_lun->be_lun, attr); 13338 mtx_lock(&softc->ctl_lock); 13339 if (val == UINT64_MAX) 13340 continue; 13341 if ((page->descr[i].flags & SLBPPD_ARMING_MASK) 13342 == SLBPPD_ARMING_INC) 13343 e |= (val >= thres); 13344 else 13345 e |= (val <= thres); 13346 } 13347 mtx_lock(&lun->lun_lock); 13348 if (e) { 13349 if (lun->lasttpt == 0 || 13350 time_uptime - lun->lasttpt >= CTL_LBP_UA_PERIOD) { 13351 lun->lasttpt = time_uptime; 13352 ctl_est_ua_all(lun, -1, CTL_UA_THIN_PROV_THRES); 13353 set = 1; 13354 } else 13355 set = 0; 13356 } else { 13357 lun->lasttpt = 0; 13358 ctl_clr_ua_all(lun, -1, CTL_UA_THIN_PROV_THRES); 13359 set = -1; 13360 } 13361 mtx_unlock(&lun->lun_lock); 13362 if (set != 0 && 13363 lun->ctl_softc->ha_mode == CTL_HA_MODE_XFER) { 13364 /* Send msg to other side. */ 13365 bzero(&msg.ua, sizeof(msg.ua)); 13366 msg.hdr.msg_type = CTL_MSG_UA; 13367 msg.hdr.nexus.initid = -1; 13368 msg.hdr.nexus.targ_port = -1; 13369 msg.hdr.nexus.targ_lun = lun->lun; 13370 msg.hdr.nexus.targ_mapped_lun = lun->lun; 13371 msg.ua.ua_all = 1; 13372 msg.ua.ua_set = (set > 0); 13373 msg.ua.ua_type = CTL_UA_THIN_PROV_THRES; 13374 mtx_unlock(&softc->ctl_lock); // XXX 13375 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, 13376 sizeof(msg.ua), M_WAITOK); 13377 mtx_lock(&softc->ctl_lock); 13378 } 13379 } 13380 mtx_unlock(&softc->ctl_lock); 13381 pause("-", CTL_LBP_PERIOD * hz); 13382 } 13383} 13384 13385static void 13386ctl_enqueue_incoming(union ctl_io *io) 13387{ 13388 struct ctl_softc *softc = control_softc; 13389 struct ctl_thread *thr; 13390 u_int idx; 13391 13392 idx = (io->io_hdr.nexus.targ_port * 127 + 13393 io->io_hdr.nexus.initid) % worker_threads; 13394 thr = &softc->threads[idx]; 13395 mtx_lock(&thr->queue_lock); 13396 STAILQ_INSERT_TAIL(&thr->incoming_queue, &io->io_hdr, links); 13397 mtx_unlock(&thr->queue_lock); 13398 wakeup(thr); 13399} 13400 13401static void 13402ctl_enqueue_rtr(union ctl_io *io) 13403{ 13404 struct ctl_softc *softc = control_softc; 13405 struct ctl_thread *thr; 13406 13407 thr = &softc->threads[io->io_hdr.nexus.targ_mapped_lun % worker_threads]; 13408 mtx_lock(&thr->queue_lock); 13409 STAILQ_INSERT_TAIL(&thr->rtr_queue, &io->io_hdr, links); 13410 mtx_unlock(&thr->queue_lock); 13411 wakeup(thr); 13412} 13413 13414static void 13415ctl_enqueue_done(union ctl_io *io) 13416{ 13417 struct ctl_softc *softc = control_softc; 13418 struct ctl_thread *thr; 13419 13420 thr = &softc->threads[io->io_hdr.nexus.targ_mapped_lun % worker_threads]; 13421 mtx_lock(&thr->queue_lock); 13422 STAILQ_INSERT_TAIL(&thr->done_queue, &io->io_hdr, links); 13423 mtx_unlock(&thr->queue_lock); 13424 wakeup(thr); 13425} 13426 13427static void 13428ctl_enqueue_isc(union ctl_io *io) 13429{ 13430 struct ctl_softc *softc = control_softc; 13431 struct ctl_thread *thr; 13432 13433 thr = &softc->threads[io->io_hdr.nexus.targ_mapped_lun % worker_threads]; 13434 mtx_lock(&thr->queue_lock); 13435 STAILQ_INSERT_TAIL(&thr->isc_queue, &io->io_hdr, links); 13436 mtx_unlock(&thr->queue_lock); 13437 wakeup(thr); 13438} 13439 13440/* 13441 * vim: ts=8 13442 */ 13443