ctl.c revision 288165
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: head/sys/cam/ctl/ctl.c 288165 2015-09-24 07:16:34Z mav $"); 47 48#include <sys/param.h> 49#include <sys/systm.h> 50#include <sys/ctype.h> 51#include <sys/kernel.h> 52#include <sys/types.h> 53#include <sys/kthread.h> 54#include <sys/bio.h> 55#include <sys/fcntl.h> 56#include <sys/lock.h> 57#include <sys/module.h> 58#include <sys/mutex.h> 59#include <sys/condvar.h> 60#include <sys/malloc.h> 61#include <sys/conf.h> 62#include <sys/ioccom.h> 63#include <sys/queue.h> 64#include <sys/sbuf.h> 65#include <sys/smp.h> 66#include <sys/endian.h> 67#include <sys/sysctl.h> 68#include <vm/uma.h> 69 70#include <cam/cam.h> 71#include <cam/scsi/scsi_all.h> 72#include <cam/scsi/scsi_da.h> 73#include <cam/ctl/ctl_io.h> 74#include <cam/ctl/ctl.h> 75#include <cam/ctl/ctl_frontend.h> 76#include <cam/ctl/ctl_util.h> 77#include <cam/ctl/ctl_backend.h> 78#include <cam/ctl/ctl_ioctl.h> 79#include <cam/ctl/ctl_ha.h> 80#include <cam/ctl/ctl_private.h> 81#include <cam/ctl/ctl_debug.h> 82#include <cam/ctl/ctl_scsi_all.h> 83#include <cam/ctl/ctl_error.h> 84 85struct ctl_softc *control_softc = NULL; 86 87/* 88 * Template mode pages. 89 */ 90 91/* 92 * Note that these are default values only. The actual values will be 93 * filled in when the user does a mode sense. 94 */ 95const static struct copan_debugconf_subpage debugconf_page_default = { 96 DBGCNF_PAGE_CODE | SMPH_SPF, /* page_code */ 97 DBGCNF_SUBPAGE_CODE, /* subpage */ 98 {(sizeof(struct copan_debugconf_subpage) - 4) >> 8, 99 (sizeof(struct copan_debugconf_subpage) - 4) >> 0}, /* page_length */ 100 DBGCNF_VERSION, /* page_version */ 101 {CTL_TIME_IO_DEFAULT_SECS>>8, 102 CTL_TIME_IO_DEFAULT_SECS>>0}, /* ctl_time_io_secs */ 103}; 104 105const static struct copan_debugconf_subpage debugconf_page_changeable = { 106 DBGCNF_PAGE_CODE | SMPH_SPF, /* page_code */ 107 DBGCNF_SUBPAGE_CODE, /* subpage */ 108 {(sizeof(struct copan_debugconf_subpage) - 4) >> 8, 109 (sizeof(struct copan_debugconf_subpage) - 4) >> 0}, /* page_length */ 110 0, /* page_version */ 111 {0xff,0xff}, /* ctl_time_io_secs */ 112}; 113 114const static struct scsi_da_rw_recovery_page rw_er_page_default = { 115 /*page_code*/SMS_RW_ERROR_RECOVERY_PAGE, 116 /*page_length*/sizeof(struct scsi_da_rw_recovery_page) - 2, 117 /*byte3*/SMS_RWER_AWRE|SMS_RWER_ARRE, 118 /*read_retry_count*/0, 119 /*correction_span*/0, 120 /*head_offset_count*/0, 121 /*data_strobe_offset_cnt*/0, 122 /*byte8*/SMS_RWER_LBPERE, 123 /*write_retry_count*/0, 124 /*reserved2*/0, 125 /*recovery_time_limit*/{0, 0}, 126}; 127 128const static struct scsi_da_rw_recovery_page rw_er_page_changeable = { 129 /*page_code*/SMS_RW_ERROR_RECOVERY_PAGE, 130 /*page_length*/sizeof(struct scsi_da_rw_recovery_page) - 2, 131 /*byte3*/0, 132 /*read_retry_count*/0, 133 /*correction_span*/0, 134 /*head_offset_count*/0, 135 /*data_strobe_offset_cnt*/0, 136 /*byte8*/0, 137 /*write_retry_count*/0, 138 /*reserved2*/0, 139 /*recovery_time_limit*/{0, 0}, 140}; 141 142const static struct scsi_format_page format_page_default = { 143 /*page_code*/SMS_FORMAT_DEVICE_PAGE, 144 /*page_length*/sizeof(struct scsi_format_page) - 2, 145 /*tracks_per_zone*/ {0, 0}, 146 /*alt_sectors_per_zone*/ {0, 0}, 147 /*alt_tracks_per_zone*/ {0, 0}, 148 /*alt_tracks_per_lun*/ {0, 0}, 149 /*sectors_per_track*/ {(CTL_DEFAULT_SECTORS_PER_TRACK >> 8) & 0xff, 150 CTL_DEFAULT_SECTORS_PER_TRACK & 0xff}, 151 /*bytes_per_sector*/ {0, 0}, 152 /*interleave*/ {0, 0}, 153 /*track_skew*/ {0, 0}, 154 /*cylinder_skew*/ {0, 0}, 155 /*flags*/ SFP_HSEC, 156 /*reserved*/ {0, 0, 0} 157}; 158 159const static struct scsi_format_page format_page_changeable = { 160 /*page_code*/SMS_FORMAT_DEVICE_PAGE, 161 /*page_length*/sizeof(struct scsi_format_page) - 2, 162 /*tracks_per_zone*/ {0, 0}, 163 /*alt_sectors_per_zone*/ {0, 0}, 164 /*alt_tracks_per_zone*/ {0, 0}, 165 /*alt_tracks_per_lun*/ {0, 0}, 166 /*sectors_per_track*/ {0, 0}, 167 /*bytes_per_sector*/ {0, 0}, 168 /*interleave*/ {0, 0}, 169 /*track_skew*/ {0, 0}, 170 /*cylinder_skew*/ {0, 0}, 171 /*flags*/ 0, 172 /*reserved*/ {0, 0, 0} 173}; 174 175const static struct scsi_rigid_disk_page rigid_disk_page_default = { 176 /*page_code*/SMS_RIGID_DISK_PAGE, 177 /*page_length*/sizeof(struct scsi_rigid_disk_page) - 2, 178 /*cylinders*/ {0, 0, 0}, 179 /*heads*/ CTL_DEFAULT_HEADS, 180 /*start_write_precomp*/ {0, 0, 0}, 181 /*start_reduced_current*/ {0, 0, 0}, 182 /*step_rate*/ {0, 0}, 183 /*landing_zone_cylinder*/ {0, 0, 0}, 184 /*rpl*/ SRDP_RPL_DISABLED, 185 /*rotational_offset*/ 0, 186 /*reserved1*/ 0, 187 /*rotation_rate*/ {(CTL_DEFAULT_ROTATION_RATE >> 8) & 0xff, 188 CTL_DEFAULT_ROTATION_RATE & 0xff}, 189 /*reserved2*/ {0, 0} 190}; 191 192const static struct scsi_rigid_disk_page rigid_disk_page_changeable = { 193 /*page_code*/SMS_RIGID_DISK_PAGE, 194 /*page_length*/sizeof(struct scsi_rigid_disk_page) - 2, 195 /*cylinders*/ {0, 0, 0}, 196 /*heads*/ 0, 197 /*start_write_precomp*/ {0, 0, 0}, 198 /*start_reduced_current*/ {0, 0, 0}, 199 /*step_rate*/ {0, 0}, 200 /*landing_zone_cylinder*/ {0, 0, 0}, 201 /*rpl*/ 0, 202 /*rotational_offset*/ 0, 203 /*reserved1*/ 0, 204 /*rotation_rate*/ {0, 0}, 205 /*reserved2*/ {0, 0} 206}; 207 208const static struct scsi_caching_page caching_page_default = { 209 /*page_code*/SMS_CACHING_PAGE, 210 /*page_length*/sizeof(struct scsi_caching_page) - 2, 211 /*flags1*/ SCP_DISC | SCP_WCE, 212 /*ret_priority*/ 0, 213 /*disable_pf_transfer_len*/ {0xff, 0xff}, 214 /*min_prefetch*/ {0, 0}, 215 /*max_prefetch*/ {0xff, 0xff}, 216 /*max_pf_ceiling*/ {0xff, 0xff}, 217 /*flags2*/ 0, 218 /*cache_segments*/ 0, 219 /*cache_seg_size*/ {0, 0}, 220 /*reserved*/ 0, 221 /*non_cache_seg_size*/ {0, 0, 0} 222}; 223 224const static struct scsi_caching_page caching_page_changeable = { 225 /*page_code*/SMS_CACHING_PAGE, 226 /*page_length*/sizeof(struct scsi_caching_page) - 2, 227 /*flags1*/ SCP_WCE | SCP_RCD, 228 /*ret_priority*/ 0, 229 /*disable_pf_transfer_len*/ {0, 0}, 230 /*min_prefetch*/ {0, 0}, 231 /*max_prefetch*/ {0, 0}, 232 /*max_pf_ceiling*/ {0, 0}, 233 /*flags2*/ 0, 234 /*cache_segments*/ 0, 235 /*cache_seg_size*/ {0, 0}, 236 /*reserved*/ 0, 237 /*non_cache_seg_size*/ {0, 0, 0} 238}; 239 240const static struct scsi_control_page control_page_default = { 241 /*page_code*/SMS_CONTROL_MODE_PAGE, 242 /*page_length*/sizeof(struct scsi_control_page) - 2, 243 /*rlec*/0, 244 /*queue_flags*/SCP_QUEUE_ALG_RESTRICTED, 245 /*eca_and_aen*/0, 246 /*flags4*/SCP_TAS, 247 /*aen_holdoff_period*/{0, 0}, 248 /*busy_timeout_period*/{0, 0}, 249 /*extended_selftest_completion_time*/{0, 0} 250}; 251 252const static struct scsi_control_page control_page_changeable = { 253 /*page_code*/SMS_CONTROL_MODE_PAGE, 254 /*page_length*/sizeof(struct scsi_control_page) - 2, 255 /*rlec*/SCP_DSENSE, 256 /*queue_flags*/SCP_QUEUE_ALG_MASK, 257 /*eca_and_aen*/SCP_SWP, 258 /*flags4*/0, 259 /*aen_holdoff_period*/{0, 0}, 260 /*busy_timeout_period*/{0, 0}, 261 /*extended_selftest_completion_time*/{0, 0} 262}; 263 264#define CTL_CEM_LEN (sizeof(struct scsi_control_ext_page) - 4) 265 266const static struct scsi_control_ext_page control_ext_page_default = { 267 /*page_code*/SMS_CONTROL_MODE_PAGE | SMPH_SPF, 268 /*subpage_code*/0x01, 269 /*page_length*/{CTL_CEM_LEN >> 8, CTL_CEM_LEN}, 270 /*flags*/0, 271 /*prio*/0, 272 /*max_sense*/0 273}; 274 275const static struct scsi_control_ext_page control_ext_page_changeable = { 276 /*page_code*/SMS_CONTROL_MODE_PAGE | SMPH_SPF, 277 /*subpage_code*/0x01, 278 /*page_length*/{CTL_CEM_LEN >> 8, CTL_CEM_LEN}, 279 /*flags*/0, 280 /*prio*/0, 281 /*max_sense*/0 282}; 283 284const static struct scsi_info_exceptions_page ie_page_default = { 285 /*page_code*/SMS_INFO_EXCEPTIONS_PAGE, 286 /*page_length*/sizeof(struct scsi_info_exceptions_page) - 2, 287 /*info_flags*/SIEP_FLAGS_DEXCPT, 288 /*mrie*/0, 289 /*interval_timer*/{0, 0, 0, 0}, 290 /*report_count*/{0, 0, 0, 0} 291}; 292 293const static struct scsi_info_exceptions_page ie_page_changeable = { 294 /*page_code*/SMS_INFO_EXCEPTIONS_PAGE, 295 /*page_length*/sizeof(struct scsi_info_exceptions_page) - 2, 296 /*info_flags*/0, 297 /*mrie*/0, 298 /*interval_timer*/{0, 0, 0, 0}, 299 /*report_count*/{0, 0, 0, 0} 300}; 301 302#define CTL_LBPM_LEN (sizeof(struct ctl_logical_block_provisioning_page) - 4) 303 304const static struct ctl_logical_block_provisioning_page lbp_page_default = {{ 305 /*page_code*/SMS_INFO_EXCEPTIONS_PAGE | SMPH_SPF, 306 /*subpage_code*/0x02, 307 /*page_length*/{CTL_LBPM_LEN >> 8, CTL_LBPM_LEN}, 308 /*flags*/0, 309 /*reserved*/{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}, 310 /*descr*/{}}, 311 {{/*flags*/0, 312 /*resource*/0x01, 313 /*reserved*/{0, 0}, 314 /*count*/{0, 0, 0, 0}}, 315 {/*flags*/0, 316 /*resource*/0x02, 317 /*reserved*/{0, 0}, 318 /*count*/{0, 0, 0, 0}}, 319 {/*flags*/0, 320 /*resource*/0xf1, 321 /*reserved*/{0, 0}, 322 /*count*/{0, 0, 0, 0}}, 323 {/*flags*/0, 324 /*resource*/0xf2, 325 /*reserved*/{0, 0}, 326 /*count*/{0, 0, 0, 0}} 327 } 328}; 329 330const static struct ctl_logical_block_provisioning_page lbp_page_changeable = {{ 331 /*page_code*/SMS_INFO_EXCEPTIONS_PAGE | SMPH_SPF, 332 /*subpage_code*/0x02, 333 /*page_length*/{CTL_LBPM_LEN >> 8, CTL_LBPM_LEN}, 334 /*flags*/0, 335 /*reserved*/{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}, 336 /*descr*/{}}, 337 {{/*flags*/0, 338 /*resource*/0, 339 /*reserved*/{0, 0}, 340 /*count*/{0, 0, 0, 0}}, 341 {/*flags*/0, 342 /*resource*/0, 343 /*reserved*/{0, 0}, 344 /*count*/{0, 0, 0, 0}}, 345 {/*flags*/0, 346 /*resource*/0, 347 /*reserved*/{0, 0}, 348 /*count*/{0, 0, 0, 0}}, 349 {/*flags*/0, 350 /*resource*/0, 351 /*reserved*/{0, 0}, 352 /*count*/{0, 0, 0, 0}} 353 } 354}; 355 356SYSCTL_NODE(_kern_cam, OID_AUTO, ctl, CTLFLAG_RD, 0, "CAM Target Layer"); 357static int worker_threads = -1; 358SYSCTL_INT(_kern_cam_ctl, OID_AUTO, worker_threads, CTLFLAG_RDTUN, 359 &worker_threads, 1, "Number of worker threads"); 360static int ctl_debug = CTL_DEBUG_NONE; 361SYSCTL_INT(_kern_cam_ctl, OID_AUTO, debug, CTLFLAG_RWTUN, 362 &ctl_debug, 0, "Enabled debug flags"); 363 364/* 365 * Supported pages (0x00), Serial number (0x80), Device ID (0x83), 366 * Extended INQUIRY Data (0x86), Mode Page Policy (0x87), 367 * SCSI Ports (0x88), Third-party Copy (0x8F), Block limits (0xB0), 368 * Block Device Characteristics (0xB1) and Logical Block Provisioning (0xB2) 369 */ 370#define SCSI_EVPD_NUM_SUPPORTED_PAGES 10 371 372static void ctl_isc_event_handler(ctl_ha_channel chanel, ctl_ha_event event, 373 int param); 374static void ctl_copy_sense_data(union ctl_ha_msg *src, union ctl_io *dest); 375static void ctl_copy_sense_data_back(union ctl_io *src, union ctl_ha_msg *dest); 376static int ctl_init(void); 377void ctl_shutdown(void); 378static int ctl_open(struct cdev *dev, int flags, int fmt, struct thread *td); 379static int ctl_close(struct cdev *dev, int flags, int fmt, struct thread *td); 380static int ctl_serialize_other_sc_cmd(struct ctl_scsiio *ctsio); 381static int ctl_ioctl_fill_ooa(struct ctl_lun *lun, uint32_t *cur_fill_num, 382 struct ctl_ooa *ooa_hdr, 383 struct ctl_ooa_entry *kern_entries); 384static int ctl_ioctl(struct cdev *dev, u_long cmd, caddr_t addr, int flag, 385 struct thread *td); 386static int ctl_alloc_lun(struct ctl_softc *ctl_softc, struct ctl_lun *lun, 387 struct ctl_be_lun *be_lun); 388static int ctl_free_lun(struct ctl_lun *lun); 389static void ctl_create_lun(struct ctl_be_lun *be_lun); 390static struct ctl_port * ctl_io_port(struct ctl_io_hdr *io_hdr); 391 392static int ctl_do_mode_select(union ctl_io *io); 393static int ctl_pro_preempt(struct ctl_softc *softc, struct ctl_lun *lun, 394 uint64_t res_key, uint64_t sa_res_key, 395 uint8_t type, uint32_t residx, 396 struct ctl_scsiio *ctsio, 397 struct scsi_per_res_out *cdb, 398 struct scsi_per_res_out_parms* param); 399static void ctl_pro_preempt_other(struct ctl_lun *lun, 400 union ctl_ha_msg *msg); 401static void ctl_hndl_per_res_out_on_other_sc(union ctl_ha_msg *msg); 402static int ctl_inquiry_evpd_supported(struct ctl_scsiio *ctsio, int alloc_len); 403static int ctl_inquiry_evpd_serial(struct ctl_scsiio *ctsio, int alloc_len); 404static int ctl_inquiry_evpd_devid(struct ctl_scsiio *ctsio, int alloc_len); 405static int ctl_inquiry_evpd_eid(struct ctl_scsiio *ctsio, int alloc_len); 406static int ctl_inquiry_evpd_mpp(struct ctl_scsiio *ctsio, int alloc_len); 407static int ctl_inquiry_evpd_scsi_ports(struct ctl_scsiio *ctsio, 408 int alloc_len); 409static int ctl_inquiry_evpd_block_limits(struct ctl_scsiio *ctsio, 410 int alloc_len); 411static int ctl_inquiry_evpd_bdc(struct ctl_scsiio *ctsio, int alloc_len); 412static int ctl_inquiry_evpd_lbp(struct ctl_scsiio *ctsio, int alloc_len); 413static int ctl_inquiry_evpd(struct ctl_scsiio *ctsio); 414static int ctl_inquiry_std(struct ctl_scsiio *ctsio); 415static int ctl_get_lba_len(union ctl_io *io, uint64_t *lba, uint64_t *len); 416static ctl_action ctl_extent_check(union ctl_io *io1, union ctl_io *io2, 417 bool seq); 418static ctl_action ctl_extent_check_seq(union ctl_io *io1, union ctl_io *io2); 419static ctl_action ctl_check_for_blockage(struct ctl_lun *lun, 420 union ctl_io *pending_io, union ctl_io *ooa_io); 421static ctl_action ctl_check_ooa(struct ctl_lun *lun, union ctl_io *pending_io, 422 union ctl_io *starting_io); 423static int ctl_check_blocked(struct ctl_lun *lun); 424static int ctl_scsiio_lun_check(struct ctl_lun *lun, 425 const struct ctl_cmd_entry *entry, 426 struct ctl_scsiio *ctsio); 427static void ctl_failover_lun(struct ctl_lun *lun); 428static int ctl_scsiio_precheck(struct ctl_softc *ctl_softc, 429 struct ctl_scsiio *ctsio); 430static int ctl_scsiio(struct ctl_scsiio *ctsio); 431 432static int ctl_bus_reset(struct ctl_softc *ctl_softc, union ctl_io *io); 433static int ctl_target_reset(struct ctl_softc *ctl_softc, union ctl_io *io, 434 ctl_ua_type ua_type); 435static int ctl_do_lun_reset(struct ctl_lun *lun, union ctl_io *io, 436 ctl_ua_type ua_type); 437static int ctl_lun_reset(struct ctl_softc *ctl_softc, union ctl_io *io); 438static int ctl_abort_task(union ctl_io *io); 439static int ctl_abort_task_set(union ctl_io *io); 440static int ctl_query_task(union ctl_io *io, int task_set); 441static int ctl_i_t_nexus_reset(union ctl_io *io); 442static int ctl_query_async_event(union ctl_io *io); 443static void ctl_run_task(union ctl_io *io); 444#ifdef CTL_IO_DELAY 445static void ctl_datamove_timer_wakeup(void *arg); 446static void ctl_done_timer_wakeup(void *arg); 447#endif /* CTL_IO_DELAY */ 448 449static void ctl_send_datamove_done(union ctl_io *io, int have_lock); 450static void ctl_datamove_remote_write_cb(struct ctl_ha_dt_req *rq); 451static int ctl_datamove_remote_dm_write_cb(union ctl_io *io); 452static void ctl_datamove_remote_write(union ctl_io *io); 453static int ctl_datamove_remote_dm_read_cb(union ctl_io *io); 454static void ctl_datamove_remote_read_cb(struct ctl_ha_dt_req *rq); 455static int ctl_datamove_remote_sgl_setup(union ctl_io *io); 456static int ctl_datamove_remote_xfer(union ctl_io *io, unsigned command, 457 ctl_ha_dt_cb callback); 458static void ctl_datamove_remote_read(union ctl_io *io); 459static void ctl_datamove_remote(union ctl_io *io); 460static int ctl_process_done(union ctl_io *io); 461static void ctl_lun_thread(void *arg); 462static void ctl_thresh_thread(void *arg); 463static void ctl_work_thread(void *arg); 464static void ctl_enqueue_incoming(union ctl_io *io); 465static void ctl_enqueue_rtr(union ctl_io *io); 466static void ctl_enqueue_done(union ctl_io *io); 467static void ctl_enqueue_isc(union ctl_io *io); 468static const struct ctl_cmd_entry * 469 ctl_get_cmd_entry(struct ctl_scsiio *ctsio, int *sa); 470static const struct ctl_cmd_entry * 471 ctl_validate_command(struct ctl_scsiio *ctsio); 472static int ctl_cmd_applicable(uint8_t lun_type, 473 const struct ctl_cmd_entry *entry); 474 475static uint64_t ctl_get_prkey(struct ctl_lun *lun, uint32_t residx); 476static void ctl_clr_prkey(struct ctl_lun *lun, uint32_t residx); 477static void ctl_alloc_prkey(struct ctl_lun *lun, uint32_t residx); 478static void ctl_set_prkey(struct ctl_lun *lun, uint32_t residx, uint64_t key); 479 480/* 481 * Load the serialization table. This isn't very pretty, but is probably 482 * the easiest way to do it. 483 */ 484#include "ctl_ser_table.c" 485 486/* 487 * We only need to define open, close and ioctl routines for this driver. 488 */ 489static struct cdevsw ctl_cdevsw = { 490 .d_version = D_VERSION, 491 .d_flags = 0, 492 .d_open = ctl_open, 493 .d_close = ctl_close, 494 .d_ioctl = ctl_ioctl, 495 .d_name = "ctl", 496}; 497 498 499MALLOC_DEFINE(M_CTL, "ctlmem", "Memory used for CTL"); 500 501static int ctl_module_event_handler(module_t, int /*modeventtype_t*/, void *); 502 503static moduledata_t ctl_moduledata = { 504 "ctl", 505 ctl_module_event_handler, 506 NULL 507}; 508 509DECLARE_MODULE(ctl, ctl_moduledata, SI_SUB_CONFIGURE, SI_ORDER_THIRD); 510MODULE_VERSION(ctl, 1); 511 512static struct ctl_frontend ha_frontend = 513{ 514 .name = "ha", 515}; 516 517static void 518ctl_isc_handler_finish_xfer(struct ctl_softc *ctl_softc, 519 union ctl_ha_msg *msg_info) 520{ 521 struct ctl_scsiio *ctsio; 522 523 if (msg_info->hdr.original_sc == NULL) { 524 printf("%s: original_sc == NULL!\n", __func__); 525 /* XXX KDM now what? */ 526 return; 527 } 528 529 ctsio = &msg_info->hdr.original_sc->scsiio; 530 ctsio->io_hdr.flags |= CTL_FLAG_IO_ACTIVE; 531 ctsio->io_hdr.msg_type = CTL_MSG_FINISH_IO; 532 ctsio->io_hdr.status = msg_info->hdr.status; 533 ctsio->scsi_status = msg_info->scsi.scsi_status; 534 ctsio->sense_len = msg_info->scsi.sense_len; 535 ctsio->sense_residual = msg_info->scsi.sense_residual; 536 ctsio->residual = msg_info->scsi.residual; 537 memcpy(&ctsio->sense_data, &msg_info->scsi.sense_data, 538 msg_info->scsi.sense_len); 539 ctl_enqueue_isc((union ctl_io *)ctsio); 540} 541 542static void 543ctl_isc_handler_finish_ser_only(struct ctl_softc *ctl_softc, 544 union ctl_ha_msg *msg_info) 545{ 546 struct ctl_scsiio *ctsio; 547 548 if (msg_info->hdr.serializing_sc == NULL) { 549 printf("%s: serializing_sc == NULL!\n", __func__); 550 /* XXX KDM now what? */ 551 return; 552 } 553 554 ctsio = &msg_info->hdr.serializing_sc->scsiio; 555 ctsio->io_hdr.msg_type = CTL_MSG_FINISH_IO; 556 ctl_enqueue_isc((union ctl_io *)ctsio); 557} 558 559void 560ctl_isc_announce_lun(struct ctl_lun *lun) 561{ 562 struct ctl_softc *softc = lun->ctl_softc; 563 union ctl_ha_msg *msg; 564 struct ctl_ha_msg_lun_pr_key pr_key; 565 int i, k; 566 567 if (softc->ha_link != CTL_HA_LINK_ONLINE) 568 return; 569 mtx_lock(&lun->lun_lock); 570 i = sizeof(msg->lun); 571 if (lun->lun_devid) 572 i += lun->lun_devid->len; 573 i += sizeof(pr_key) * lun->pr_key_count; 574alloc: 575 mtx_unlock(&lun->lun_lock); 576 msg = malloc(i, M_CTL, M_WAITOK); 577 mtx_lock(&lun->lun_lock); 578 k = sizeof(msg->lun); 579 if (lun->lun_devid) 580 k += lun->lun_devid->len; 581 k += sizeof(pr_key) * lun->pr_key_count; 582 if (i < k) { 583 free(msg, M_CTL); 584 i = k; 585 goto alloc; 586 } 587 bzero(&msg->lun, sizeof(msg->lun)); 588 msg->hdr.msg_type = CTL_MSG_LUN_SYNC; 589 msg->hdr.nexus.targ_lun = lun->lun; 590 msg->hdr.nexus.targ_mapped_lun = lun->lun; 591 msg->lun.flags = lun->flags; 592 msg->lun.pr_generation = lun->PRGeneration; 593 msg->lun.pr_res_idx = lun->pr_res_idx; 594 msg->lun.pr_res_type = lun->res_type; 595 msg->lun.pr_key_count = lun->pr_key_count; 596 i = 0; 597 if (lun->lun_devid) { 598 msg->lun.lun_devid_len = lun->lun_devid->len; 599 memcpy(&msg->lun.data[i], lun->lun_devid->data, 600 msg->lun.lun_devid_len); 601 i += msg->lun.lun_devid_len; 602 } 603 for (k = 0; k < CTL_MAX_INITIATORS; k++) { 604 if ((pr_key.pr_key = ctl_get_prkey(lun, k)) == 0) 605 continue; 606 pr_key.pr_iid = k; 607 memcpy(&msg->lun.data[i], &pr_key, sizeof(pr_key)); 608 i += sizeof(pr_key); 609 } 610 mtx_unlock(&lun->lun_lock); 611 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg->port, sizeof(msg->port) + i, 612 M_WAITOK); 613 free(msg, M_CTL); 614 615 if (lun->flags & CTL_LUN_PRIMARY_SC) { 616 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 617 ctl_isc_announce_mode(lun, -1, 618 lun->mode_pages.index[i].page_code & SMPH_PC_MASK, 619 lun->mode_pages.index[i].subpage); 620 } 621 } 622} 623 624void 625ctl_isc_announce_port(struct ctl_port *port) 626{ 627 struct ctl_softc *softc = control_softc; 628 union ctl_ha_msg *msg; 629 int i; 630 631 if (port->targ_port < softc->port_min || 632 port->targ_port >= softc->port_max || 633 softc->ha_link != CTL_HA_LINK_ONLINE) 634 return; 635 i = sizeof(msg->port) + strlen(port->port_name) + 1; 636 if (port->lun_map) 637 i += sizeof(uint32_t) * CTL_MAX_LUNS; 638 if (port->port_devid) 639 i += port->port_devid->len; 640 if (port->target_devid) 641 i += port->target_devid->len; 642 if (port->init_devid) 643 i += port->init_devid->len; 644 msg = malloc(i, M_CTL, M_WAITOK); 645 bzero(&msg->port, sizeof(msg->port)); 646 msg->hdr.msg_type = CTL_MSG_PORT_SYNC; 647 msg->hdr.nexus.targ_port = port->targ_port; 648 msg->port.port_type = port->port_type; 649 msg->port.physical_port = port->physical_port; 650 msg->port.virtual_port = port->virtual_port; 651 msg->port.status = port->status; 652 i = 0; 653 msg->port.name_len = sprintf(&msg->port.data[i], 654 "%d:%s", softc->ha_id, port->port_name) + 1; 655 i += msg->port.name_len; 656 if (port->lun_map) { 657 msg->port.lun_map_len = sizeof(uint32_t) * CTL_MAX_LUNS; 658 memcpy(&msg->port.data[i], port->lun_map, 659 msg->port.lun_map_len); 660 i += msg->port.lun_map_len; 661 } 662 if (port->port_devid) { 663 msg->port.port_devid_len = port->port_devid->len; 664 memcpy(&msg->port.data[i], port->port_devid->data, 665 msg->port.port_devid_len); 666 i += msg->port.port_devid_len; 667 } 668 if (port->target_devid) { 669 msg->port.target_devid_len = port->target_devid->len; 670 memcpy(&msg->port.data[i], port->target_devid->data, 671 msg->port.target_devid_len); 672 i += msg->port.target_devid_len; 673 } 674 if (port->init_devid) { 675 msg->port.init_devid_len = port->init_devid->len; 676 memcpy(&msg->port.data[i], port->init_devid->data, 677 msg->port.init_devid_len); 678 i += msg->port.init_devid_len; 679 } 680 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg->port, sizeof(msg->port) + i, 681 M_WAITOK); 682 free(msg, M_CTL); 683} 684 685void 686ctl_isc_announce_iid(struct ctl_port *port, int iid) 687{ 688 struct ctl_softc *softc = control_softc; 689 union ctl_ha_msg *msg; 690 int i, l; 691 692 if (port->targ_port < softc->port_min || 693 port->targ_port >= softc->port_max || 694 softc->ha_link != CTL_HA_LINK_ONLINE) 695 return; 696 mtx_lock(&softc->ctl_lock); 697 i = sizeof(msg->iid); 698 l = 0; 699 if (port->wwpn_iid[iid].name) 700 l = strlen(port->wwpn_iid[iid].name) + 1; 701 i += l; 702 msg = malloc(i, M_CTL, M_NOWAIT); 703 if (msg == NULL) { 704 mtx_unlock(&softc->ctl_lock); 705 return; 706 } 707 bzero(&msg->iid, sizeof(msg->iid)); 708 msg->hdr.msg_type = CTL_MSG_IID_SYNC; 709 msg->hdr.nexus.targ_port = port->targ_port; 710 msg->hdr.nexus.initid = iid; 711 msg->iid.in_use = port->wwpn_iid[iid].in_use; 712 msg->iid.name_len = l; 713 msg->iid.wwpn = port->wwpn_iid[iid].wwpn; 714 if (port->wwpn_iid[iid].name) 715 strlcpy(msg->iid.data, port->wwpn_iid[iid].name, l); 716 mtx_unlock(&softc->ctl_lock); 717 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg->iid, i, M_NOWAIT); 718 free(msg, M_CTL); 719} 720 721void 722ctl_isc_announce_mode(struct ctl_lun *lun, uint32_t initidx, 723 uint8_t page, uint8_t subpage) 724{ 725 struct ctl_softc *softc = lun->ctl_softc; 726 union ctl_ha_msg msg; 727 int i; 728 729 if (softc->ha_link != CTL_HA_LINK_ONLINE) 730 return; 731 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 732 if ((lun->mode_pages.index[i].page_code & SMPH_PC_MASK) == 733 page && lun->mode_pages.index[i].subpage == subpage) 734 break; 735 } 736 if (i == CTL_NUM_MODE_PAGES) 737 return; 738 bzero(&msg.mode, sizeof(msg.mode)); 739 msg.hdr.msg_type = CTL_MSG_MODE_SYNC; 740 msg.hdr.nexus.targ_port = initidx / CTL_MAX_INIT_PER_PORT; 741 msg.hdr.nexus.initid = initidx % CTL_MAX_INIT_PER_PORT; 742 msg.hdr.nexus.targ_lun = lun->lun; 743 msg.hdr.nexus.targ_mapped_lun = lun->lun; 744 msg.mode.page_code = page; 745 msg.mode.subpage = subpage; 746 msg.mode.page_len = lun->mode_pages.index[i].page_len; 747 memcpy(msg.mode.data, lun->mode_pages.index[i].page_data, 748 msg.mode.page_len); 749 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg.mode, sizeof(msg.mode), 750 M_WAITOK); 751} 752 753static void 754ctl_isc_ha_link_up(struct ctl_softc *softc) 755{ 756 struct ctl_port *port; 757 struct ctl_lun *lun; 758 union ctl_ha_msg msg; 759 int i; 760 761 /* Announce this node parameters to peer for validation. */ 762 msg.login.msg_type = CTL_MSG_LOGIN; 763 msg.login.version = CTL_HA_VERSION; 764 msg.login.ha_mode = softc->ha_mode; 765 msg.login.ha_id = softc->ha_id; 766 msg.login.max_luns = CTL_MAX_LUNS; 767 msg.login.max_ports = CTL_MAX_PORTS; 768 msg.login.max_init_per_port = CTL_MAX_INIT_PER_PORT; 769 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg.login, sizeof(msg.login), 770 M_WAITOK); 771 772 STAILQ_FOREACH(port, &softc->port_list, links) { 773 ctl_isc_announce_port(port); 774 for (i = 0; i < CTL_MAX_INIT_PER_PORT; i++) { 775 if (port->wwpn_iid[i].in_use) 776 ctl_isc_announce_iid(port, i); 777 } 778 } 779 STAILQ_FOREACH(lun, &softc->lun_list, links) 780 ctl_isc_announce_lun(lun); 781} 782 783static void 784ctl_isc_ha_link_down(struct ctl_softc *softc) 785{ 786 struct ctl_port *port; 787 struct ctl_lun *lun; 788 union ctl_io *io; 789 int i; 790 791 mtx_lock(&softc->ctl_lock); 792 STAILQ_FOREACH(lun, &softc->lun_list, links) { 793 mtx_lock(&lun->lun_lock); 794 if (lun->flags & CTL_LUN_PEER_SC_PRIMARY) { 795 lun->flags &= ~CTL_LUN_PEER_SC_PRIMARY; 796 ctl_est_ua_all(lun, -1, CTL_UA_ASYM_ACC_CHANGE); 797 } 798 mtx_unlock(&lun->lun_lock); 799 800 mtx_unlock(&softc->ctl_lock); 801 io = ctl_alloc_io(softc->othersc_pool); 802 mtx_lock(&softc->ctl_lock); 803 ctl_zero_io(io); 804 io->io_hdr.msg_type = CTL_MSG_FAILOVER; 805 io->io_hdr.nexus.targ_mapped_lun = lun->lun; 806 ctl_enqueue_isc(io); 807 } 808 809 STAILQ_FOREACH(port, &softc->port_list, links) { 810 if (port->targ_port >= softc->port_min && 811 port->targ_port < softc->port_max) 812 continue; 813 port->status &= ~CTL_PORT_STATUS_ONLINE; 814 for (i = 0; i < CTL_MAX_INIT_PER_PORT; i++) { 815 port->wwpn_iid[i].in_use = 0; 816 free(port->wwpn_iid[i].name, M_CTL); 817 port->wwpn_iid[i].name = NULL; 818 } 819 } 820 mtx_unlock(&softc->ctl_lock); 821} 822 823static void 824ctl_isc_ua(struct ctl_softc *softc, union ctl_ha_msg *msg, int len) 825{ 826 struct ctl_lun *lun; 827 uint32_t iid = ctl_get_initindex(&msg->hdr.nexus); 828 829 mtx_lock(&softc->ctl_lock); 830 if (msg->hdr.nexus.targ_lun < CTL_MAX_LUNS && 831 (lun = softc->ctl_luns[msg->hdr.nexus.targ_mapped_lun]) != NULL) { 832 mtx_lock(&lun->lun_lock); 833 mtx_unlock(&softc->ctl_lock); 834 if (msg->ua.ua_type == CTL_UA_THIN_PROV_THRES && 835 msg->ua.ua_set) 836 memcpy(lun->ua_tpt_info, msg->ua.ua_info, 8); 837 if (msg->ua.ua_all) { 838 if (msg->ua.ua_set) 839 ctl_est_ua_all(lun, iid, msg->ua.ua_type); 840 else 841 ctl_clr_ua_all(lun, iid, msg->ua.ua_type); 842 } else { 843 if (msg->ua.ua_set) 844 ctl_est_ua(lun, iid, msg->ua.ua_type); 845 else 846 ctl_clr_ua(lun, iid, msg->ua.ua_type); 847 } 848 mtx_unlock(&lun->lun_lock); 849 } else 850 mtx_unlock(&softc->ctl_lock); 851} 852 853static void 854ctl_isc_lun_sync(struct ctl_softc *softc, union ctl_ha_msg *msg, int len) 855{ 856 struct ctl_lun *lun; 857 struct ctl_ha_msg_lun_pr_key pr_key; 858 int i, k; 859 ctl_lun_flags oflags; 860 uint32_t targ_lun; 861 862 targ_lun = msg->hdr.nexus.targ_mapped_lun; 863 mtx_lock(&softc->ctl_lock); 864 if ((targ_lun >= CTL_MAX_LUNS) || 865 ((lun = softc->ctl_luns[targ_lun]) == NULL)) { 866 mtx_unlock(&softc->ctl_lock); 867 return; 868 } 869 mtx_lock(&lun->lun_lock); 870 mtx_unlock(&softc->ctl_lock); 871 if (lun->flags & CTL_LUN_DISABLED) { 872 mtx_unlock(&lun->lun_lock); 873 return; 874 } 875 i = (lun->lun_devid != NULL) ? lun->lun_devid->len : 0; 876 if (msg->lun.lun_devid_len != i || (i > 0 && 877 memcmp(&msg->lun.data[0], lun->lun_devid->data, i) != 0)) { 878 mtx_unlock(&lun->lun_lock); 879 printf("%s: Received conflicting HA LUN %d\n", 880 __func__, msg->hdr.nexus.targ_lun); 881 return; 882 } else { 883 /* Record whether peer is primary. */ 884 oflags = lun->flags; 885 if ((msg->lun.flags & CTL_LUN_PRIMARY_SC) && 886 (msg->lun.flags & CTL_LUN_DISABLED) == 0) 887 lun->flags |= CTL_LUN_PEER_SC_PRIMARY; 888 else 889 lun->flags &= ~CTL_LUN_PEER_SC_PRIMARY; 890 if (oflags != lun->flags) 891 ctl_est_ua_all(lun, -1, CTL_UA_ASYM_ACC_CHANGE); 892 893 /* If peer is primary and we are not -- use data */ 894 if ((lun->flags & CTL_LUN_PRIMARY_SC) == 0 && 895 (lun->flags & CTL_LUN_PEER_SC_PRIMARY)) { 896 lun->PRGeneration = msg->lun.pr_generation; 897 lun->pr_res_idx = msg->lun.pr_res_idx; 898 lun->res_type = msg->lun.pr_res_type; 899 lun->pr_key_count = msg->lun.pr_key_count; 900 for (k = 0; k < CTL_MAX_INITIATORS; k++) 901 ctl_clr_prkey(lun, k); 902 for (k = 0; k < msg->lun.pr_key_count; k++) { 903 memcpy(&pr_key, &msg->lun.data[i], 904 sizeof(pr_key)); 905 ctl_alloc_prkey(lun, pr_key.pr_iid); 906 ctl_set_prkey(lun, pr_key.pr_iid, 907 pr_key.pr_key); 908 i += sizeof(pr_key); 909 } 910 } 911 912 mtx_unlock(&lun->lun_lock); 913 CTL_DEBUG_PRINT(("%s: Known LUN %d, peer is %s\n", 914 __func__, msg->hdr.nexus.targ_lun, 915 (msg->lun.flags & CTL_LUN_PRIMARY_SC) ? 916 "primary" : "secondary")); 917 918 /* If we are primary but peer doesn't know -- notify */ 919 if ((lun->flags & CTL_LUN_PRIMARY_SC) && 920 (msg->lun.flags & CTL_LUN_PEER_SC_PRIMARY) == 0) 921 ctl_isc_announce_lun(lun); 922 } 923} 924 925static void 926ctl_isc_port_sync(struct ctl_softc *softc, union ctl_ha_msg *msg, int len) 927{ 928 struct ctl_port *port; 929 struct ctl_lun *lun; 930 int i, new; 931 932 port = softc->ctl_ports[msg->hdr.nexus.targ_port]; 933 if (port == NULL) { 934 CTL_DEBUG_PRINT(("%s: New port %d\n", __func__, 935 msg->hdr.nexus.targ_port)); 936 new = 1; 937 port = malloc(sizeof(*port), M_CTL, M_WAITOK | M_ZERO); 938 port->frontend = &ha_frontend; 939 port->targ_port = msg->hdr.nexus.targ_port; 940 } else if (port->frontend == &ha_frontend) { 941 CTL_DEBUG_PRINT(("%s: Updated port %d\n", __func__, 942 msg->hdr.nexus.targ_port)); 943 new = 0; 944 } else { 945 printf("%s: Received conflicting HA port %d\n", 946 __func__, msg->hdr.nexus.targ_port); 947 return; 948 } 949 port->port_type = msg->port.port_type; 950 port->physical_port = msg->port.physical_port; 951 port->virtual_port = msg->port.virtual_port; 952 port->status = msg->port.status; 953 i = 0; 954 free(port->port_name, M_CTL); 955 port->port_name = strndup(&msg->port.data[i], msg->port.name_len, 956 M_CTL); 957 i += msg->port.name_len; 958 if (msg->port.lun_map_len != 0) { 959 if (port->lun_map == NULL) 960 port->lun_map = malloc(sizeof(uint32_t) * CTL_MAX_LUNS, 961 M_CTL, M_WAITOK); 962 memcpy(port->lun_map, &msg->port.data[i], 963 sizeof(uint32_t) * CTL_MAX_LUNS); 964 i += msg->port.lun_map_len; 965 } else { 966 free(port->lun_map, M_CTL); 967 port->lun_map = NULL; 968 } 969 if (msg->port.port_devid_len != 0) { 970 if (port->port_devid == NULL || 971 port->port_devid->len != msg->port.port_devid_len) { 972 free(port->port_devid, M_CTL); 973 port->port_devid = malloc(sizeof(struct ctl_devid) + 974 msg->port.port_devid_len, M_CTL, M_WAITOK); 975 } 976 memcpy(port->port_devid->data, &msg->port.data[i], 977 msg->port.port_devid_len); 978 port->port_devid->len = msg->port.port_devid_len; 979 i += msg->port.port_devid_len; 980 } else { 981 free(port->port_devid, M_CTL); 982 port->port_devid = NULL; 983 } 984 if (msg->port.target_devid_len != 0) { 985 if (port->target_devid == NULL || 986 port->target_devid->len != msg->port.target_devid_len) { 987 free(port->target_devid, M_CTL); 988 port->target_devid = malloc(sizeof(struct ctl_devid) + 989 msg->port.target_devid_len, M_CTL, M_WAITOK); 990 } 991 memcpy(port->target_devid->data, &msg->port.data[i], 992 msg->port.target_devid_len); 993 port->target_devid->len = msg->port.target_devid_len; 994 i += msg->port.target_devid_len; 995 } else { 996 free(port->target_devid, M_CTL); 997 port->target_devid = NULL; 998 } 999 if (msg->port.init_devid_len != 0) { 1000 if (port->init_devid == NULL || 1001 port->init_devid->len != msg->port.init_devid_len) { 1002 free(port->init_devid, M_CTL); 1003 port->init_devid = malloc(sizeof(struct ctl_devid) + 1004 msg->port.init_devid_len, M_CTL, M_WAITOK); 1005 } 1006 memcpy(port->init_devid->data, &msg->port.data[i], 1007 msg->port.init_devid_len); 1008 port->init_devid->len = msg->port.init_devid_len; 1009 i += msg->port.init_devid_len; 1010 } else { 1011 free(port->init_devid, M_CTL); 1012 port->init_devid = NULL; 1013 } 1014 if (new) { 1015 if (ctl_port_register(port) != 0) { 1016 printf("%s: ctl_port_register() failed with error\n", 1017 __func__); 1018 } 1019 } 1020 mtx_lock(&softc->ctl_lock); 1021 STAILQ_FOREACH(lun, &softc->lun_list, links) { 1022 if (ctl_lun_map_to_port(port, lun->lun) >= CTL_MAX_LUNS) 1023 continue; 1024 mtx_lock(&lun->lun_lock); 1025 ctl_est_ua_all(lun, -1, CTL_UA_INQ_CHANGE); 1026 mtx_unlock(&lun->lun_lock); 1027 } 1028 mtx_unlock(&softc->ctl_lock); 1029} 1030 1031static void 1032ctl_isc_iid_sync(struct ctl_softc *softc, union ctl_ha_msg *msg, int len) 1033{ 1034 struct ctl_port *port; 1035 int iid; 1036 1037 port = softc->ctl_ports[msg->hdr.nexus.targ_port]; 1038 if (port == NULL) { 1039 printf("%s: Received IID for unknown port %d\n", 1040 __func__, msg->hdr.nexus.targ_port); 1041 return; 1042 } 1043 iid = msg->hdr.nexus.initid; 1044 port->wwpn_iid[iid].in_use = msg->iid.in_use; 1045 port->wwpn_iid[iid].wwpn = msg->iid.wwpn; 1046 free(port->wwpn_iid[iid].name, M_CTL); 1047 if (msg->iid.name_len) { 1048 port->wwpn_iid[iid].name = strndup(&msg->iid.data[0], 1049 msg->iid.name_len, M_CTL); 1050 } else 1051 port->wwpn_iid[iid].name = NULL; 1052} 1053 1054static void 1055ctl_isc_login(struct ctl_softc *softc, union ctl_ha_msg *msg, int len) 1056{ 1057 1058 if (msg->login.version != CTL_HA_VERSION) { 1059 printf("CTL HA peers have different versions %d != %d\n", 1060 msg->login.version, CTL_HA_VERSION); 1061 ctl_ha_msg_abort(CTL_HA_CHAN_CTL); 1062 return; 1063 } 1064 if (msg->login.ha_mode != softc->ha_mode) { 1065 printf("CTL HA peers have different ha_mode %d != %d\n", 1066 msg->login.ha_mode, softc->ha_mode); 1067 ctl_ha_msg_abort(CTL_HA_CHAN_CTL); 1068 return; 1069 } 1070 if (msg->login.ha_id == softc->ha_id) { 1071 printf("CTL HA peers have same ha_id %d\n", msg->login.ha_id); 1072 ctl_ha_msg_abort(CTL_HA_CHAN_CTL); 1073 return; 1074 } 1075 if (msg->login.max_luns != CTL_MAX_LUNS || 1076 msg->login.max_ports != CTL_MAX_PORTS || 1077 msg->login.max_init_per_port != CTL_MAX_INIT_PER_PORT) { 1078 printf("CTL HA peers have different limits\n"); 1079 ctl_ha_msg_abort(CTL_HA_CHAN_CTL); 1080 return; 1081 } 1082} 1083 1084static void 1085ctl_isc_mode_sync(struct ctl_softc *softc, union ctl_ha_msg *msg, int len) 1086{ 1087 struct ctl_lun *lun; 1088 int i; 1089 uint32_t initidx, targ_lun; 1090 1091 targ_lun = msg->hdr.nexus.targ_mapped_lun; 1092 mtx_lock(&softc->ctl_lock); 1093 if ((targ_lun >= CTL_MAX_LUNS) || 1094 ((lun = softc->ctl_luns[targ_lun]) == NULL)) { 1095 mtx_unlock(&softc->ctl_lock); 1096 return; 1097 } 1098 mtx_lock(&lun->lun_lock); 1099 mtx_unlock(&softc->ctl_lock); 1100 if (lun->flags & CTL_LUN_DISABLED) { 1101 mtx_unlock(&lun->lun_lock); 1102 return; 1103 } 1104 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 1105 if ((lun->mode_pages.index[i].page_code & SMPH_PC_MASK) == 1106 msg->mode.page_code && 1107 lun->mode_pages.index[i].subpage == msg->mode.subpage) 1108 break; 1109 } 1110 if (i == CTL_NUM_MODE_PAGES) { 1111 mtx_unlock(&lun->lun_lock); 1112 return; 1113 } 1114 memcpy(lun->mode_pages.index[i].page_data, msg->mode.data, 1115 lun->mode_pages.index[i].page_len); 1116 initidx = ctl_get_initindex(&msg->hdr.nexus); 1117 if (initidx != -1) 1118 ctl_est_ua_all(lun, initidx, CTL_UA_MODE_CHANGE); 1119 mtx_unlock(&lun->lun_lock); 1120} 1121 1122/* 1123 * ISC (Inter Shelf Communication) event handler. Events from the HA 1124 * subsystem come in here. 1125 */ 1126static void 1127ctl_isc_event_handler(ctl_ha_channel channel, ctl_ha_event event, int param) 1128{ 1129 struct ctl_softc *softc; 1130 union ctl_io *io; 1131 struct ctl_prio *presio; 1132 ctl_ha_status isc_status; 1133 1134 softc = control_softc; 1135 CTL_DEBUG_PRINT(("CTL: Isc Msg event %d\n", event)); 1136 if (event == CTL_HA_EVT_MSG_RECV) { 1137 union ctl_ha_msg *msg, msgbuf; 1138 1139 if (param > sizeof(msgbuf)) 1140 msg = malloc(param, M_CTL, M_WAITOK); 1141 else 1142 msg = &msgbuf; 1143 isc_status = ctl_ha_msg_recv(CTL_HA_CHAN_CTL, msg, param, 1144 M_WAITOK); 1145 if (isc_status != CTL_HA_STATUS_SUCCESS) { 1146 printf("%s: Error receiving message: %d\n", 1147 __func__, isc_status); 1148 if (msg != &msgbuf) 1149 free(msg, M_CTL); 1150 return; 1151 } 1152 1153 CTL_DEBUG_PRINT(("CTL: msg_type %d\n", msg->msg_type)); 1154 switch (msg->hdr.msg_type) { 1155 case CTL_MSG_SERIALIZE: 1156 io = ctl_alloc_io(softc->othersc_pool); 1157 ctl_zero_io(io); 1158 // populate ctsio from msg 1159 io->io_hdr.io_type = CTL_IO_SCSI; 1160 io->io_hdr.msg_type = CTL_MSG_SERIALIZE; 1161 io->io_hdr.original_sc = msg->hdr.original_sc; 1162 io->io_hdr.flags |= CTL_FLAG_FROM_OTHER_SC | 1163 CTL_FLAG_IO_ACTIVE; 1164 /* 1165 * If we're in serialization-only mode, we don't 1166 * want to go through full done processing. Thus 1167 * the COPY flag. 1168 * 1169 * XXX KDM add another flag that is more specific. 1170 */ 1171 if (softc->ha_mode != CTL_HA_MODE_XFER) 1172 io->io_hdr.flags |= CTL_FLAG_INT_COPY; 1173 io->io_hdr.nexus = msg->hdr.nexus; 1174#if 0 1175 printf("port %u, iid %u, lun %u\n", 1176 io->io_hdr.nexus.targ_port, 1177 io->io_hdr.nexus.initid, 1178 io->io_hdr.nexus.targ_lun); 1179#endif 1180 io->scsiio.tag_num = msg->scsi.tag_num; 1181 io->scsiio.tag_type = msg->scsi.tag_type; 1182#ifdef CTL_TIME_IO 1183 io->io_hdr.start_time = time_uptime; 1184 getbintime(&io->io_hdr.start_bt); 1185#endif /* CTL_TIME_IO */ 1186 io->scsiio.cdb_len = msg->scsi.cdb_len; 1187 memcpy(io->scsiio.cdb, msg->scsi.cdb, 1188 CTL_MAX_CDBLEN); 1189 if (softc->ha_mode == CTL_HA_MODE_XFER) { 1190 const struct ctl_cmd_entry *entry; 1191 1192 entry = ctl_get_cmd_entry(&io->scsiio, NULL); 1193 io->io_hdr.flags &= ~CTL_FLAG_DATA_MASK; 1194 io->io_hdr.flags |= 1195 entry->flags & CTL_FLAG_DATA_MASK; 1196 } 1197 ctl_enqueue_isc(io); 1198 break; 1199 1200 /* Performed on the Originating SC, XFER mode only */ 1201 case CTL_MSG_DATAMOVE: { 1202 struct ctl_sg_entry *sgl; 1203 int i, j; 1204 1205 io = msg->hdr.original_sc; 1206 if (io == NULL) { 1207 printf("%s: original_sc == NULL!\n", __func__); 1208 /* XXX KDM do something here */ 1209 break; 1210 } 1211 io->io_hdr.msg_type = CTL_MSG_DATAMOVE; 1212 io->io_hdr.flags |= CTL_FLAG_IO_ACTIVE; 1213 /* 1214 * Keep track of this, we need to send it back over 1215 * when the datamove is complete. 1216 */ 1217 io->io_hdr.serializing_sc = msg->hdr.serializing_sc; 1218 if (msg->hdr.status == CTL_SUCCESS) 1219 io->io_hdr.status = msg->hdr.status; 1220 1221 if (msg->dt.sg_sequence == 0) { 1222 i = msg->dt.kern_sg_entries + 1223 msg->dt.kern_data_len / 1224 CTL_HA_DATAMOVE_SEGMENT + 1; 1225 sgl = malloc(sizeof(*sgl) * i, M_CTL, 1226 M_WAITOK | M_ZERO); 1227 io->io_hdr.remote_sglist = sgl; 1228 io->io_hdr.local_sglist = 1229 &sgl[msg->dt.kern_sg_entries]; 1230 1231 io->scsiio.kern_data_ptr = (uint8_t *)sgl; 1232 1233 io->scsiio.kern_sg_entries = 1234 msg->dt.kern_sg_entries; 1235 io->scsiio.rem_sg_entries = 1236 msg->dt.kern_sg_entries; 1237 io->scsiio.kern_data_len = 1238 msg->dt.kern_data_len; 1239 io->scsiio.kern_total_len = 1240 msg->dt.kern_total_len; 1241 io->scsiio.kern_data_resid = 1242 msg->dt.kern_data_resid; 1243 io->scsiio.kern_rel_offset = 1244 msg->dt.kern_rel_offset; 1245 io->io_hdr.flags &= ~CTL_FLAG_BUS_ADDR; 1246 io->io_hdr.flags |= msg->dt.flags & 1247 CTL_FLAG_BUS_ADDR; 1248 } else 1249 sgl = (struct ctl_sg_entry *) 1250 io->scsiio.kern_data_ptr; 1251 1252 for (i = msg->dt.sent_sg_entries, j = 0; 1253 i < (msg->dt.sent_sg_entries + 1254 msg->dt.cur_sg_entries); i++, j++) { 1255 sgl[i].addr = msg->dt.sg_list[j].addr; 1256 sgl[i].len = msg->dt.sg_list[j].len; 1257 1258#if 0 1259 printf("%s: DATAMOVE: %p,%lu j=%d, i=%d\n", 1260 __func__, sgl[i].addr, sgl[i].len, j, i); 1261#endif 1262 } 1263 1264 /* 1265 * If this is the last piece of the I/O, we've got 1266 * the full S/G list. Queue processing in the thread. 1267 * Otherwise wait for the next piece. 1268 */ 1269 if (msg->dt.sg_last != 0) 1270 ctl_enqueue_isc(io); 1271 break; 1272 } 1273 /* Performed on the Serializing (primary) SC, XFER mode only */ 1274 case CTL_MSG_DATAMOVE_DONE: { 1275 if (msg->hdr.serializing_sc == NULL) { 1276 printf("%s: serializing_sc == NULL!\n", 1277 __func__); 1278 /* XXX KDM now what? */ 1279 break; 1280 } 1281 /* 1282 * We grab the sense information here in case 1283 * there was a failure, so we can return status 1284 * back to the initiator. 1285 */ 1286 io = msg->hdr.serializing_sc; 1287 io->io_hdr.msg_type = CTL_MSG_DATAMOVE_DONE; 1288 io->io_hdr.flags &= ~CTL_FLAG_DMA_INPROG; 1289 io->io_hdr.flags |= CTL_FLAG_IO_ACTIVE; 1290 io->io_hdr.port_status = msg->scsi.fetd_status; 1291 io->scsiio.residual = msg->scsi.residual; 1292 if (msg->hdr.status != CTL_STATUS_NONE) { 1293 io->io_hdr.status = msg->hdr.status; 1294 io->scsiio.scsi_status = msg->scsi.scsi_status; 1295 io->scsiio.sense_len = msg->scsi.sense_len; 1296 io->scsiio.sense_residual =msg->scsi.sense_residual; 1297 memcpy(&io->scsiio.sense_data, 1298 &msg->scsi.sense_data, 1299 msg->scsi.sense_len); 1300 if (msg->hdr.status == CTL_SUCCESS) 1301 io->io_hdr.flags |= CTL_FLAG_STATUS_SENT; 1302 } 1303 ctl_enqueue_isc(io); 1304 break; 1305 } 1306 1307 /* Preformed on Originating SC, SER_ONLY mode */ 1308 case CTL_MSG_R2R: 1309 io = msg->hdr.original_sc; 1310 if (io == NULL) { 1311 printf("%s: original_sc == NULL!\n", 1312 __func__); 1313 break; 1314 } 1315 io->io_hdr.flags |= CTL_FLAG_IO_ACTIVE; 1316 io->io_hdr.msg_type = CTL_MSG_R2R; 1317 io->io_hdr.serializing_sc = msg->hdr.serializing_sc; 1318 ctl_enqueue_isc(io); 1319 break; 1320 1321 /* 1322 * Performed on Serializing(i.e. primary SC) SC in SER_ONLY 1323 * mode. 1324 * Performed on the Originating (i.e. secondary) SC in XFER 1325 * mode 1326 */ 1327 case CTL_MSG_FINISH_IO: 1328 if (softc->ha_mode == CTL_HA_MODE_XFER) 1329 ctl_isc_handler_finish_xfer(softc, msg); 1330 else 1331 ctl_isc_handler_finish_ser_only(softc, msg); 1332 break; 1333 1334 /* Preformed on Originating SC */ 1335 case CTL_MSG_BAD_JUJU: 1336 io = msg->hdr.original_sc; 1337 if (io == NULL) { 1338 printf("%s: Bad JUJU!, original_sc is NULL!\n", 1339 __func__); 1340 break; 1341 } 1342 ctl_copy_sense_data(msg, io); 1343 /* 1344 * IO should have already been cleaned up on other 1345 * SC so clear this flag so we won't send a message 1346 * back to finish the IO there. 1347 */ 1348 io->io_hdr.flags &= ~CTL_FLAG_SENT_2OTHER_SC; 1349 io->io_hdr.flags |= CTL_FLAG_IO_ACTIVE; 1350 1351 /* io = msg->hdr.serializing_sc; */ 1352 io->io_hdr.msg_type = CTL_MSG_BAD_JUJU; 1353 ctl_enqueue_isc(io); 1354 break; 1355 1356 /* Handle resets sent from the other side */ 1357 case CTL_MSG_MANAGE_TASKS: { 1358 struct ctl_taskio *taskio; 1359 taskio = (struct ctl_taskio *)ctl_alloc_io( 1360 softc->othersc_pool); 1361 ctl_zero_io((union ctl_io *)taskio); 1362 taskio->io_hdr.io_type = CTL_IO_TASK; 1363 taskio->io_hdr.flags |= CTL_FLAG_FROM_OTHER_SC; 1364 taskio->io_hdr.nexus = msg->hdr.nexus; 1365 taskio->task_action = msg->task.task_action; 1366 taskio->tag_num = msg->task.tag_num; 1367 taskio->tag_type = msg->task.tag_type; 1368#ifdef CTL_TIME_IO 1369 taskio->io_hdr.start_time = time_uptime; 1370 getbintime(&taskio->io_hdr.start_bt); 1371#endif /* CTL_TIME_IO */ 1372 ctl_run_task((union ctl_io *)taskio); 1373 break; 1374 } 1375 /* Persistent Reserve action which needs attention */ 1376 case CTL_MSG_PERS_ACTION: 1377 presio = (struct ctl_prio *)ctl_alloc_io( 1378 softc->othersc_pool); 1379 ctl_zero_io((union ctl_io *)presio); 1380 presio->io_hdr.msg_type = CTL_MSG_PERS_ACTION; 1381 presio->io_hdr.flags |= CTL_FLAG_FROM_OTHER_SC; 1382 presio->io_hdr.nexus = msg->hdr.nexus; 1383 presio->pr_msg = msg->pr; 1384 ctl_enqueue_isc((union ctl_io *)presio); 1385 break; 1386 case CTL_MSG_UA: 1387 ctl_isc_ua(softc, msg, param); 1388 break; 1389 case CTL_MSG_PORT_SYNC: 1390 ctl_isc_port_sync(softc, msg, param); 1391 break; 1392 case CTL_MSG_LUN_SYNC: 1393 ctl_isc_lun_sync(softc, msg, param); 1394 break; 1395 case CTL_MSG_IID_SYNC: 1396 ctl_isc_iid_sync(softc, msg, param); 1397 break; 1398 case CTL_MSG_LOGIN: 1399 ctl_isc_login(softc, msg, param); 1400 break; 1401 case CTL_MSG_MODE_SYNC: 1402 ctl_isc_mode_sync(softc, msg, param); 1403 break; 1404 default: 1405 printf("Received HA message of unknown type %d\n", 1406 msg->hdr.msg_type); 1407 ctl_ha_msg_abort(CTL_HA_CHAN_CTL); 1408 break; 1409 } 1410 if (msg != &msgbuf) 1411 free(msg, M_CTL); 1412 } else if (event == CTL_HA_EVT_LINK_CHANGE) { 1413 printf("CTL: HA link status changed from %d to %d\n", 1414 softc->ha_link, param); 1415 if (param == softc->ha_link) 1416 return; 1417 if (softc->ha_link == CTL_HA_LINK_ONLINE) { 1418 softc->ha_link = param; 1419 ctl_isc_ha_link_down(softc); 1420 } else { 1421 softc->ha_link = param; 1422 if (softc->ha_link == CTL_HA_LINK_ONLINE) 1423 ctl_isc_ha_link_up(softc); 1424 } 1425 return; 1426 } else { 1427 printf("ctl_isc_event_handler: Unknown event %d\n", event); 1428 return; 1429 } 1430} 1431 1432static void 1433ctl_copy_sense_data(union ctl_ha_msg *src, union ctl_io *dest) 1434{ 1435 1436 memcpy(&dest->scsiio.sense_data, &src->scsi.sense_data, 1437 src->scsi.sense_len); 1438 dest->scsiio.scsi_status = src->scsi.scsi_status; 1439 dest->scsiio.sense_len = src->scsi.sense_len; 1440 dest->io_hdr.status = src->hdr.status; 1441} 1442 1443static void 1444ctl_copy_sense_data_back(union ctl_io *src, union ctl_ha_msg *dest) 1445{ 1446 1447 memcpy(&dest->scsi.sense_data, &src->scsiio.sense_data, 1448 src->scsiio.sense_len); 1449 dest->scsi.scsi_status = src->scsiio.scsi_status; 1450 dest->scsi.sense_len = src->scsiio.sense_len; 1451 dest->hdr.status = src->io_hdr.status; 1452} 1453 1454void 1455ctl_est_ua(struct ctl_lun *lun, uint32_t initidx, ctl_ua_type ua) 1456{ 1457 struct ctl_softc *softc = lun->ctl_softc; 1458 ctl_ua_type *pu; 1459 1460 if (initidx < softc->init_min || initidx >= softc->init_max) 1461 return; 1462 mtx_assert(&lun->lun_lock, MA_OWNED); 1463 pu = lun->pending_ua[initidx / CTL_MAX_INIT_PER_PORT]; 1464 if (pu == NULL) 1465 return; 1466 pu[initidx % CTL_MAX_INIT_PER_PORT] |= ua; 1467} 1468 1469void 1470ctl_est_ua_port(struct ctl_lun *lun, int port, uint32_t except, ctl_ua_type ua) 1471{ 1472 int i; 1473 1474 mtx_assert(&lun->lun_lock, MA_OWNED); 1475 if (lun->pending_ua[port] == NULL) 1476 return; 1477 for (i = 0; i < CTL_MAX_INIT_PER_PORT; i++) { 1478 if (port * CTL_MAX_INIT_PER_PORT + i == except) 1479 continue; 1480 lun->pending_ua[port][i] |= ua; 1481 } 1482} 1483 1484void 1485ctl_est_ua_all(struct ctl_lun *lun, uint32_t except, ctl_ua_type ua) 1486{ 1487 struct ctl_softc *softc = lun->ctl_softc; 1488 int i; 1489 1490 mtx_assert(&lun->lun_lock, MA_OWNED); 1491 for (i = softc->port_min; i < softc->port_max; i++) 1492 ctl_est_ua_port(lun, i, except, ua); 1493} 1494 1495void 1496ctl_clr_ua(struct ctl_lun *lun, uint32_t initidx, ctl_ua_type ua) 1497{ 1498 struct ctl_softc *softc = lun->ctl_softc; 1499 ctl_ua_type *pu; 1500 1501 if (initidx < softc->init_min || initidx >= softc->init_max) 1502 return; 1503 mtx_assert(&lun->lun_lock, MA_OWNED); 1504 pu = lun->pending_ua[initidx / CTL_MAX_INIT_PER_PORT]; 1505 if (pu == NULL) 1506 return; 1507 pu[initidx % CTL_MAX_INIT_PER_PORT] &= ~ua; 1508} 1509 1510void 1511ctl_clr_ua_all(struct ctl_lun *lun, uint32_t except, ctl_ua_type ua) 1512{ 1513 struct ctl_softc *softc = lun->ctl_softc; 1514 int i, j; 1515 1516 mtx_assert(&lun->lun_lock, MA_OWNED); 1517 for (i = softc->port_min; i < softc->port_max; i++) { 1518 if (lun->pending_ua[i] == NULL) 1519 continue; 1520 for (j = 0; j < CTL_MAX_INIT_PER_PORT; j++) { 1521 if (i * CTL_MAX_INIT_PER_PORT + j == except) 1522 continue; 1523 lun->pending_ua[i][j] &= ~ua; 1524 } 1525 } 1526} 1527 1528void 1529ctl_clr_ua_allluns(struct ctl_softc *ctl_softc, uint32_t initidx, 1530 ctl_ua_type ua_type) 1531{ 1532 struct ctl_lun *lun; 1533 1534 mtx_assert(&ctl_softc->ctl_lock, MA_OWNED); 1535 STAILQ_FOREACH(lun, &ctl_softc->lun_list, links) { 1536 mtx_lock(&lun->lun_lock); 1537 ctl_clr_ua(lun, initidx, ua_type); 1538 mtx_unlock(&lun->lun_lock); 1539 } 1540} 1541 1542static int 1543ctl_ha_role_sysctl(SYSCTL_HANDLER_ARGS) 1544{ 1545 struct ctl_softc *softc = (struct ctl_softc *)arg1; 1546 struct ctl_lun *lun; 1547 struct ctl_lun_req ireq; 1548 int error, value; 1549 1550 value = (softc->flags & CTL_FLAG_ACTIVE_SHELF) ? 0 : 1; 1551 error = sysctl_handle_int(oidp, &value, 0, req); 1552 if ((error != 0) || (req->newptr == NULL)) 1553 return (error); 1554 1555 mtx_lock(&softc->ctl_lock); 1556 if (value == 0) 1557 softc->flags |= CTL_FLAG_ACTIVE_SHELF; 1558 else 1559 softc->flags &= ~CTL_FLAG_ACTIVE_SHELF; 1560 STAILQ_FOREACH(lun, &softc->lun_list, links) { 1561 mtx_unlock(&softc->ctl_lock); 1562 bzero(&ireq, sizeof(ireq)); 1563 ireq.reqtype = CTL_LUNREQ_MODIFY; 1564 ireq.reqdata.modify.lun_id = lun->lun; 1565 lun->backend->ioctl(NULL, CTL_LUN_REQ, (caddr_t)&ireq, 0, 1566 curthread); 1567 if (ireq.status != CTL_LUN_OK) { 1568 printf("%s: CTL_LUNREQ_MODIFY returned %d '%s'\n", 1569 __func__, ireq.status, ireq.error_str); 1570 } 1571 mtx_lock(&softc->ctl_lock); 1572 } 1573 mtx_unlock(&softc->ctl_lock); 1574 return (0); 1575} 1576 1577static int 1578ctl_init(void) 1579{ 1580 struct ctl_softc *softc; 1581 void *other_pool; 1582 int i, error, retval; 1583 1584 retval = 0; 1585 control_softc = malloc(sizeof(*control_softc), M_DEVBUF, 1586 M_WAITOK | M_ZERO); 1587 softc = control_softc; 1588 1589 softc->dev = make_dev(&ctl_cdevsw, 0, UID_ROOT, GID_OPERATOR, 0600, 1590 "cam/ctl"); 1591 1592 softc->dev->si_drv1 = softc; 1593 1594 sysctl_ctx_init(&softc->sysctl_ctx); 1595 softc->sysctl_tree = SYSCTL_ADD_NODE(&softc->sysctl_ctx, 1596 SYSCTL_STATIC_CHILDREN(_kern_cam), OID_AUTO, "ctl", 1597 CTLFLAG_RD, 0, "CAM Target Layer"); 1598 1599 if (softc->sysctl_tree == NULL) { 1600 printf("%s: unable to allocate sysctl tree\n", __func__); 1601 destroy_dev(softc->dev); 1602 free(control_softc, M_DEVBUF); 1603 control_softc = NULL; 1604 return (ENOMEM); 1605 } 1606 1607 mtx_init(&softc->ctl_lock, "CTL mutex", NULL, MTX_DEF); 1608 softc->io_zone = uma_zcreate("CTL IO", sizeof(union ctl_io), 1609 NULL, NULL, NULL, NULL, UMA_ALIGN_PTR, 0); 1610 softc->open_count = 0; 1611 1612 /* 1613 * Default to actually sending a SYNCHRONIZE CACHE command down to 1614 * the drive. 1615 */ 1616 softc->flags = CTL_FLAG_REAL_SYNC; 1617 1618 SYSCTL_ADD_INT(&softc->sysctl_ctx, SYSCTL_CHILDREN(softc->sysctl_tree), 1619 OID_AUTO, "ha_mode", CTLFLAG_RDTUN, (int *)&softc->ha_mode, 0, 1620 "HA mode (0 - act/stby, 1 - serialize only, 2 - xfer)"); 1621 1622 /* 1623 * In Copan's HA scheme, the "master" and "slave" roles are 1624 * figured out through the slot the controller is in. Although it 1625 * is an active/active system, someone has to be in charge. 1626 */ 1627 SYSCTL_ADD_INT(&softc->sysctl_ctx, SYSCTL_CHILDREN(softc->sysctl_tree), 1628 OID_AUTO, "ha_id", CTLFLAG_RDTUN, &softc->ha_id, 0, 1629 "HA head ID (0 - no HA)"); 1630 if (softc->ha_id == 0 || softc->ha_id > NUM_TARGET_PORT_GROUPS) { 1631 softc->flags |= CTL_FLAG_ACTIVE_SHELF; 1632 softc->is_single = 1; 1633 softc->port_cnt = CTL_MAX_PORTS; 1634 softc->port_min = 0; 1635 } else { 1636 softc->port_cnt = CTL_MAX_PORTS / NUM_TARGET_PORT_GROUPS; 1637 softc->port_min = (softc->ha_id - 1) * softc->port_cnt; 1638 } 1639 softc->port_max = softc->port_min + softc->port_cnt; 1640 softc->init_min = softc->port_min * CTL_MAX_INIT_PER_PORT; 1641 softc->init_max = softc->port_max * CTL_MAX_INIT_PER_PORT; 1642 1643 SYSCTL_ADD_INT(&softc->sysctl_ctx, SYSCTL_CHILDREN(softc->sysctl_tree), 1644 OID_AUTO, "ha_link", CTLFLAG_RD, (int *)&softc->ha_link, 0, 1645 "HA link state (0 - offline, 1 - unknown, 2 - online)"); 1646 1647 STAILQ_INIT(&softc->lun_list); 1648 STAILQ_INIT(&softc->pending_lun_queue); 1649 STAILQ_INIT(&softc->fe_list); 1650 STAILQ_INIT(&softc->port_list); 1651 STAILQ_INIT(&softc->be_list); 1652 ctl_tpc_init(softc); 1653 1654 if (ctl_pool_create(softc, "othersc", CTL_POOL_ENTRIES_OTHER_SC, 1655 &other_pool) != 0) 1656 { 1657 printf("ctl: can't allocate %d entry other SC pool, " 1658 "exiting\n", CTL_POOL_ENTRIES_OTHER_SC); 1659 return (ENOMEM); 1660 } 1661 softc->othersc_pool = other_pool; 1662 1663 if (worker_threads <= 0) 1664 worker_threads = max(1, mp_ncpus / 4); 1665 if (worker_threads > CTL_MAX_THREADS) 1666 worker_threads = CTL_MAX_THREADS; 1667 1668 for (i = 0; i < worker_threads; i++) { 1669 struct ctl_thread *thr = &softc->threads[i]; 1670 1671 mtx_init(&thr->queue_lock, "CTL queue mutex", NULL, MTX_DEF); 1672 thr->ctl_softc = softc; 1673 STAILQ_INIT(&thr->incoming_queue); 1674 STAILQ_INIT(&thr->rtr_queue); 1675 STAILQ_INIT(&thr->done_queue); 1676 STAILQ_INIT(&thr->isc_queue); 1677 1678 error = kproc_kthread_add(ctl_work_thread, thr, 1679 &softc->ctl_proc, &thr->thread, 0, 0, "ctl", "work%d", i); 1680 if (error != 0) { 1681 printf("error creating CTL work thread!\n"); 1682 ctl_pool_free(other_pool); 1683 return (error); 1684 } 1685 } 1686 error = kproc_kthread_add(ctl_lun_thread, softc, 1687 &softc->ctl_proc, NULL, 0, 0, "ctl", "lun"); 1688 if (error != 0) { 1689 printf("error creating CTL lun thread!\n"); 1690 ctl_pool_free(other_pool); 1691 return (error); 1692 } 1693 error = kproc_kthread_add(ctl_thresh_thread, softc, 1694 &softc->ctl_proc, NULL, 0, 0, "ctl", "thresh"); 1695 if (error != 0) { 1696 printf("error creating CTL threshold thread!\n"); 1697 ctl_pool_free(other_pool); 1698 return (error); 1699 } 1700 1701 SYSCTL_ADD_PROC(&softc->sysctl_ctx,SYSCTL_CHILDREN(softc->sysctl_tree), 1702 OID_AUTO, "ha_role", CTLTYPE_INT | CTLFLAG_RWTUN, 1703 softc, 0, ctl_ha_role_sysctl, "I", "HA role for this head"); 1704 1705 if (softc->is_single == 0) { 1706 ctl_frontend_register(&ha_frontend); 1707 if (ctl_ha_msg_init(softc) != CTL_HA_STATUS_SUCCESS) { 1708 printf("ctl_init: ctl_ha_msg_init failed.\n"); 1709 softc->is_single = 1; 1710 } else 1711 if (ctl_ha_msg_register(CTL_HA_CHAN_CTL, ctl_isc_event_handler) 1712 != CTL_HA_STATUS_SUCCESS) { 1713 printf("ctl_init: ctl_ha_msg_register failed.\n"); 1714 softc->is_single = 1; 1715 } 1716 } 1717 return (0); 1718} 1719 1720void 1721ctl_shutdown(void) 1722{ 1723 struct ctl_softc *softc; 1724 struct ctl_lun *lun, *next_lun; 1725 1726 softc = (struct ctl_softc *)control_softc; 1727 1728 if (softc->is_single == 0) { 1729 ctl_ha_msg_shutdown(softc); 1730 if (ctl_ha_msg_deregister(CTL_HA_CHAN_CTL) 1731 != CTL_HA_STATUS_SUCCESS) 1732 printf("%s: ctl_ha_msg_deregister failed.\n", __func__); 1733 if (ctl_ha_msg_destroy(softc) != CTL_HA_STATUS_SUCCESS) 1734 printf("%s: ctl_ha_msg_destroy failed.\n", __func__); 1735 ctl_frontend_deregister(&ha_frontend); 1736 } 1737 1738 mtx_lock(&softc->ctl_lock); 1739 1740 /* 1741 * Free up each LUN. 1742 */ 1743 for (lun = STAILQ_FIRST(&softc->lun_list); lun != NULL; lun = next_lun){ 1744 next_lun = STAILQ_NEXT(lun, links); 1745 ctl_free_lun(lun); 1746 } 1747 1748 mtx_unlock(&softc->ctl_lock); 1749 1750#if 0 1751 ctl_shutdown_thread(softc->work_thread); 1752 mtx_destroy(&softc->queue_lock); 1753#endif 1754 1755 ctl_tpc_shutdown(softc); 1756 uma_zdestroy(softc->io_zone); 1757 mtx_destroy(&softc->ctl_lock); 1758 1759 destroy_dev(softc->dev); 1760 1761 sysctl_ctx_free(&softc->sysctl_ctx); 1762 1763 free(control_softc, M_DEVBUF); 1764 control_softc = NULL; 1765} 1766 1767static int 1768ctl_module_event_handler(module_t mod, int what, void *arg) 1769{ 1770 1771 switch (what) { 1772 case MOD_LOAD: 1773 return (ctl_init()); 1774 case MOD_UNLOAD: 1775 return (EBUSY); 1776 default: 1777 return (EOPNOTSUPP); 1778 } 1779} 1780 1781/* 1782 * XXX KDM should we do some access checks here? Bump a reference count to 1783 * prevent a CTL module from being unloaded while someone has it open? 1784 */ 1785static int 1786ctl_open(struct cdev *dev, int flags, int fmt, struct thread *td) 1787{ 1788 return (0); 1789} 1790 1791static int 1792ctl_close(struct cdev *dev, int flags, int fmt, struct thread *td) 1793{ 1794 return (0); 1795} 1796 1797/* 1798 * Remove an initiator by port number and initiator ID. 1799 * Returns 0 for success, -1 for failure. 1800 */ 1801int 1802ctl_remove_initiator(struct ctl_port *port, int iid) 1803{ 1804 struct ctl_softc *softc = control_softc; 1805 1806 mtx_assert(&softc->ctl_lock, MA_NOTOWNED); 1807 1808 if (iid > CTL_MAX_INIT_PER_PORT) { 1809 printf("%s: initiator ID %u > maximun %u!\n", 1810 __func__, iid, CTL_MAX_INIT_PER_PORT); 1811 return (-1); 1812 } 1813 1814 mtx_lock(&softc->ctl_lock); 1815 port->wwpn_iid[iid].in_use--; 1816 port->wwpn_iid[iid].last_use = time_uptime; 1817 mtx_unlock(&softc->ctl_lock); 1818 ctl_isc_announce_iid(port, iid); 1819 1820 return (0); 1821} 1822 1823/* 1824 * Add an initiator to the initiator map. 1825 * Returns iid for success, < 0 for failure. 1826 */ 1827int 1828ctl_add_initiator(struct ctl_port *port, int iid, uint64_t wwpn, char *name) 1829{ 1830 struct ctl_softc *softc = control_softc; 1831 time_t best_time; 1832 int i, best; 1833 1834 mtx_assert(&softc->ctl_lock, MA_NOTOWNED); 1835 1836 if (iid >= CTL_MAX_INIT_PER_PORT) { 1837 printf("%s: WWPN %#jx initiator ID %u > maximum %u!\n", 1838 __func__, wwpn, iid, CTL_MAX_INIT_PER_PORT); 1839 free(name, M_CTL); 1840 return (-1); 1841 } 1842 1843 mtx_lock(&softc->ctl_lock); 1844 1845 if (iid < 0 && (wwpn != 0 || name != NULL)) { 1846 for (i = 0; i < CTL_MAX_INIT_PER_PORT; i++) { 1847 if (wwpn != 0 && wwpn == port->wwpn_iid[i].wwpn) { 1848 iid = i; 1849 break; 1850 } 1851 if (name != NULL && port->wwpn_iid[i].name != NULL && 1852 strcmp(name, port->wwpn_iid[i].name) == 0) { 1853 iid = i; 1854 break; 1855 } 1856 } 1857 } 1858 1859 if (iid < 0) { 1860 for (i = 0; i < CTL_MAX_INIT_PER_PORT; i++) { 1861 if (port->wwpn_iid[i].in_use == 0 && 1862 port->wwpn_iid[i].wwpn == 0 && 1863 port->wwpn_iid[i].name == NULL) { 1864 iid = i; 1865 break; 1866 } 1867 } 1868 } 1869 1870 if (iid < 0) { 1871 best = -1; 1872 best_time = INT32_MAX; 1873 for (i = 0; i < CTL_MAX_INIT_PER_PORT; i++) { 1874 if (port->wwpn_iid[i].in_use == 0) { 1875 if (port->wwpn_iid[i].last_use < best_time) { 1876 best = i; 1877 best_time = port->wwpn_iid[i].last_use; 1878 } 1879 } 1880 } 1881 iid = best; 1882 } 1883 1884 if (iid < 0) { 1885 mtx_unlock(&softc->ctl_lock); 1886 free(name, M_CTL); 1887 return (-2); 1888 } 1889 1890 if (port->wwpn_iid[iid].in_use > 0 && (wwpn != 0 || name != NULL)) { 1891 /* 1892 * This is not an error yet. 1893 */ 1894 if (wwpn != 0 && wwpn == port->wwpn_iid[iid].wwpn) { 1895#if 0 1896 printf("%s: port %d iid %u WWPN %#jx arrived" 1897 " again\n", __func__, port->targ_port, 1898 iid, (uintmax_t)wwpn); 1899#endif 1900 goto take; 1901 } 1902 if (name != NULL && port->wwpn_iid[iid].name != NULL && 1903 strcmp(name, port->wwpn_iid[iid].name) == 0) { 1904#if 0 1905 printf("%s: port %d iid %u name '%s' arrived" 1906 " again\n", __func__, port->targ_port, 1907 iid, name); 1908#endif 1909 goto take; 1910 } 1911 1912 /* 1913 * This is an error, but what do we do about it? The 1914 * driver is telling us we have a new WWPN for this 1915 * initiator ID, so we pretty much need to use it. 1916 */ 1917 printf("%s: port %d iid %u WWPN %#jx '%s' arrived," 1918 " but WWPN %#jx '%s' is still at that address\n", 1919 __func__, port->targ_port, iid, wwpn, name, 1920 (uintmax_t)port->wwpn_iid[iid].wwpn, 1921 port->wwpn_iid[iid].name); 1922 1923 /* 1924 * XXX KDM clear have_ca and ua_pending on each LUN for 1925 * this initiator. 1926 */ 1927 } 1928take: 1929 free(port->wwpn_iid[iid].name, M_CTL); 1930 port->wwpn_iid[iid].name = name; 1931 port->wwpn_iid[iid].wwpn = wwpn; 1932 port->wwpn_iid[iid].in_use++; 1933 mtx_unlock(&softc->ctl_lock); 1934 ctl_isc_announce_iid(port, iid); 1935 1936 return (iid); 1937} 1938 1939static int 1940ctl_create_iid(struct ctl_port *port, int iid, uint8_t *buf) 1941{ 1942 int len; 1943 1944 switch (port->port_type) { 1945 case CTL_PORT_FC: 1946 { 1947 struct scsi_transportid_fcp *id = 1948 (struct scsi_transportid_fcp *)buf; 1949 if (port->wwpn_iid[iid].wwpn == 0) 1950 return (0); 1951 memset(id, 0, sizeof(*id)); 1952 id->format_protocol = SCSI_PROTO_FC; 1953 scsi_u64to8b(port->wwpn_iid[iid].wwpn, id->n_port_name); 1954 return (sizeof(*id)); 1955 } 1956 case CTL_PORT_ISCSI: 1957 { 1958 struct scsi_transportid_iscsi_port *id = 1959 (struct scsi_transportid_iscsi_port *)buf; 1960 if (port->wwpn_iid[iid].name == NULL) 1961 return (0); 1962 memset(id, 0, 256); 1963 id->format_protocol = SCSI_TRN_ISCSI_FORMAT_PORT | 1964 SCSI_PROTO_ISCSI; 1965 len = strlcpy(id->iscsi_name, port->wwpn_iid[iid].name, 252) + 1; 1966 len = roundup2(min(len, 252), 4); 1967 scsi_ulto2b(len, id->additional_length); 1968 return (sizeof(*id) + len); 1969 } 1970 case CTL_PORT_SAS: 1971 { 1972 struct scsi_transportid_sas *id = 1973 (struct scsi_transportid_sas *)buf; 1974 if (port->wwpn_iid[iid].wwpn == 0) 1975 return (0); 1976 memset(id, 0, sizeof(*id)); 1977 id->format_protocol = SCSI_PROTO_SAS; 1978 scsi_u64to8b(port->wwpn_iid[iid].wwpn, id->sas_address); 1979 return (sizeof(*id)); 1980 } 1981 default: 1982 { 1983 struct scsi_transportid_spi *id = 1984 (struct scsi_transportid_spi *)buf; 1985 memset(id, 0, sizeof(*id)); 1986 id->format_protocol = SCSI_PROTO_SPI; 1987 scsi_ulto2b(iid, id->scsi_addr); 1988 scsi_ulto2b(port->targ_port, id->rel_trgt_port_id); 1989 return (sizeof(*id)); 1990 } 1991 } 1992} 1993 1994/* 1995 * Serialize a command that went down the "wrong" side, and so was sent to 1996 * this controller for execution. The logic is a little different than the 1997 * standard case in ctl_scsiio_precheck(). Errors in this case need to get 1998 * sent back to the other side, but in the success case, we execute the 1999 * command on this side (XFER mode) or tell the other side to execute it 2000 * (SER_ONLY mode). 2001 */ 2002static int 2003ctl_serialize_other_sc_cmd(struct ctl_scsiio *ctsio) 2004{ 2005 struct ctl_softc *softc; 2006 union ctl_ha_msg msg_info; 2007 struct ctl_lun *lun; 2008 const struct ctl_cmd_entry *entry; 2009 int retval = 0; 2010 uint32_t targ_lun; 2011 2012 softc = control_softc; 2013 2014 targ_lun = ctsio->io_hdr.nexus.targ_mapped_lun; 2015 mtx_lock(&softc->ctl_lock); 2016 if ((targ_lun < CTL_MAX_LUNS) && 2017 ((lun = softc->ctl_luns[targ_lun]) != NULL)) { 2018 mtx_lock(&lun->lun_lock); 2019 mtx_unlock(&softc->ctl_lock); 2020 /* 2021 * If the LUN is invalid, pretend that it doesn't exist. 2022 * It will go away as soon as all pending I/O has been 2023 * completed. 2024 */ 2025 if (lun->flags & CTL_LUN_DISABLED) { 2026 mtx_unlock(&lun->lun_lock); 2027 lun = NULL; 2028 } 2029 } else { 2030 mtx_unlock(&softc->ctl_lock); 2031 lun = NULL; 2032 } 2033 if (lun == NULL) { 2034 /* 2035 * The other node would not send this request to us unless 2036 * received announce that we are primary node for this LUN. 2037 * If this LUN does not exist now, it is probably result of 2038 * a race, so respond to initiator in the most opaque way. 2039 */ 2040 ctl_set_busy(ctsio); 2041 ctl_copy_sense_data_back((union ctl_io *)ctsio, &msg_info); 2042 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 2043 msg_info.hdr.serializing_sc = NULL; 2044 msg_info.hdr.msg_type = CTL_MSG_BAD_JUJU; 2045 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 2046 sizeof(msg_info.scsi), M_WAITOK); 2047 return(1); 2048 } 2049 2050 entry = ctl_get_cmd_entry(ctsio, NULL); 2051 if (ctl_scsiio_lun_check(lun, entry, ctsio) != 0) { 2052 mtx_unlock(&lun->lun_lock); 2053 ctl_copy_sense_data_back((union ctl_io *)ctsio, &msg_info); 2054 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 2055 msg_info.hdr.serializing_sc = NULL; 2056 msg_info.hdr.msg_type = CTL_MSG_BAD_JUJU; 2057 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 2058 sizeof(msg_info.scsi), M_WAITOK); 2059 return(1); 2060 } 2061 2062 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr = lun; 2063 ctsio->io_hdr.ctl_private[CTL_PRIV_BACKEND_LUN].ptr = lun->be_lun; 2064 2065 /* 2066 * Every I/O goes into the OOA queue for a 2067 * particular LUN, and stays there until completion. 2068 */ 2069#ifdef CTL_TIME_IO 2070 if (TAILQ_EMPTY(&lun->ooa_queue)) 2071 lun->idle_time += getsbinuptime() - lun->last_busy; 2072#endif 2073 TAILQ_INSERT_TAIL(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 2074 2075 switch (ctl_check_ooa(lun, (union ctl_io *)ctsio, 2076 (union ctl_io *)TAILQ_PREV(&ctsio->io_hdr, ctl_ooaq, 2077 ooa_links))) { 2078 case CTL_ACTION_BLOCK: 2079 ctsio->io_hdr.flags |= CTL_FLAG_BLOCKED; 2080 TAILQ_INSERT_TAIL(&lun->blocked_queue, &ctsio->io_hdr, 2081 blocked_links); 2082 mtx_unlock(&lun->lun_lock); 2083 break; 2084 case CTL_ACTION_PASS: 2085 case CTL_ACTION_SKIP: 2086 if (softc->ha_mode == CTL_HA_MODE_XFER) { 2087 ctsio->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 2088 ctl_enqueue_rtr((union ctl_io *)ctsio); 2089 mtx_unlock(&lun->lun_lock); 2090 } else { 2091 ctsio->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 2092 mtx_unlock(&lun->lun_lock); 2093 2094 /* send msg back to other side */ 2095 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 2096 msg_info.hdr.serializing_sc = (union ctl_io *)ctsio; 2097 msg_info.hdr.msg_type = CTL_MSG_R2R; 2098 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 2099 sizeof(msg_info.hdr), M_WAITOK); 2100 } 2101 break; 2102 case CTL_ACTION_OVERLAP: 2103 TAILQ_REMOVE(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 2104 mtx_unlock(&lun->lun_lock); 2105 retval = 1; 2106 2107 ctl_set_overlapped_cmd(ctsio); 2108 ctl_copy_sense_data_back((union ctl_io *)ctsio, &msg_info); 2109 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 2110 msg_info.hdr.serializing_sc = NULL; 2111 msg_info.hdr.msg_type = CTL_MSG_BAD_JUJU; 2112 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 2113 sizeof(msg_info.scsi), M_WAITOK); 2114 break; 2115 case CTL_ACTION_OVERLAP_TAG: 2116 TAILQ_REMOVE(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 2117 mtx_unlock(&lun->lun_lock); 2118 retval = 1; 2119 ctl_set_overlapped_tag(ctsio, ctsio->tag_num); 2120 ctl_copy_sense_data_back((union ctl_io *)ctsio, &msg_info); 2121 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 2122 msg_info.hdr.serializing_sc = NULL; 2123 msg_info.hdr.msg_type = CTL_MSG_BAD_JUJU; 2124 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 2125 sizeof(msg_info.scsi), M_WAITOK); 2126 break; 2127 case CTL_ACTION_ERROR: 2128 default: 2129 TAILQ_REMOVE(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 2130 mtx_unlock(&lun->lun_lock); 2131 retval = 1; 2132 2133 ctl_set_internal_failure(ctsio, /*sks_valid*/ 0, 2134 /*retry_count*/ 0); 2135 ctl_copy_sense_data_back((union ctl_io *)ctsio, &msg_info); 2136 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 2137 msg_info.hdr.serializing_sc = NULL; 2138 msg_info.hdr.msg_type = CTL_MSG_BAD_JUJU; 2139 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 2140 sizeof(msg_info.scsi), M_WAITOK); 2141 break; 2142 } 2143 return (retval); 2144} 2145 2146/* 2147 * Returns 0 for success, errno for failure. 2148 */ 2149static int 2150ctl_ioctl_fill_ooa(struct ctl_lun *lun, uint32_t *cur_fill_num, 2151 struct ctl_ooa *ooa_hdr, struct ctl_ooa_entry *kern_entries) 2152{ 2153 union ctl_io *io; 2154 int retval; 2155 2156 retval = 0; 2157 2158 mtx_lock(&lun->lun_lock); 2159 for (io = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); (io != NULL); 2160 (*cur_fill_num)++, io = (union ctl_io *)TAILQ_NEXT(&io->io_hdr, 2161 ooa_links)) { 2162 struct ctl_ooa_entry *entry; 2163 2164 /* 2165 * If we've got more than we can fit, just count the 2166 * remaining entries. 2167 */ 2168 if (*cur_fill_num >= ooa_hdr->alloc_num) 2169 continue; 2170 2171 entry = &kern_entries[*cur_fill_num]; 2172 2173 entry->tag_num = io->scsiio.tag_num; 2174 entry->lun_num = lun->lun; 2175#ifdef CTL_TIME_IO 2176 entry->start_bt = io->io_hdr.start_bt; 2177#endif 2178 bcopy(io->scsiio.cdb, entry->cdb, io->scsiio.cdb_len); 2179 entry->cdb_len = io->scsiio.cdb_len; 2180 if (io->io_hdr.flags & CTL_FLAG_BLOCKED) 2181 entry->cmd_flags |= CTL_OOACMD_FLAG_BLOCKED; 2182 2183 if (io->io_hdr.flags & CTL_FLAG_DMA_INPROG) 2184 entry->cmd_flags |= CTL_OOACMD_FLAG_DMA; 2185 2186 if (io->io_hdr.flags & CTL_FLAG_ABORT) 2187 entry->cmd_flags |= CTL_OOACMD_FLAG_ABORT; 2188 2189 if (io->io_hdr.flags & CTL_FLAG_IS_WAS_ON_RTR) 2190 entry->cmd_flags |= CTL_OOACMD_FLAG_RTR; 2191 2192 if (io->io_hdr.flags & CTL_FLAG_DMA_QUEUED) 2193 entry->cmd_flags |= CTL_OOACMD_FLAG_DMA_QUEUED; 2194 } 2195 mtx_unlock(&lun->lun_lock); 2196 2197 return (retval); 2198} 2199 2200static void * 2201ctl_copyin_alloc(void *user_addr, int len, char *error_str, 2202 size_t error_str_len) 2203{ 2204 void *kptr; 2205 2206 kptr = malloc(len, M_CTL, M_WAITOK | M_ZERO); 2207 2208 if (copyin(user_addr, kptr, len) != 0) { 2209 snprintf(error_str, error_str_len, "Error copying %d bytes " 2210 "from user address %p to kernel address %p", len, 2211 user_addr, kptr); 2212 free(kptr, M_CTL); 2213 return (NULL); 2214 } 2215 2216 return (kptr); 2217} 2218 2219static void 2220ctl_free_args(int num_args, struct ctl_be_arg *args) 2221{ 2222 int i; 2223 2224 if (args == NULL) 2225 return; 2226 2227 for (i = 0; i < num_args; i++) { 2228 free(args[i].kname, M_CTL); 2229 free(args[i].kvalue, M_CTL); 2230 } 2231 2232 free(args, M_CTL); 2233} 2234 2235static struct ctl_be_arg * 2236ctl_copyin_args(int num_args, struct ctl_be_arg *uargs, 2237 char *error_str, size_t error_str_len) 2238{ 2239 struct ctl_be_arg *args; 2240 int i; 2241 2242 args = ctl_copyin_alloc(uargs, num_args * sizeof(*args), 2243 error_str, error_str_len); 2244 2245 if (args == NULL) 2246 goto bailout; 2247 2248 for (i = 0; i < num_args; i++) { 2249 args[i].kname = NULL; 2250 args[i].kvalue = NULL; 2251 } 2252 2253 for (i = 0; i < num_args; i++) { 2254 uint8_t *tmpptr; 2255 2256 args[i].kname = ctl_copyin_alloc(args[i].name, 2257 args[i].namelen, error_str, error_str_len); 2258 if (args[i].kname == NULL) 2259 goto bailout; 2260 2261 if (args[i].kname[args[i].namelen - 1] != '\0') { 2262 snprintf(error_str, error_str_len, "Argument %d " 2263 "name is not NUL-terminated", i); 2264 goto bailout; 2265 } 2266 2267 if (args[i].flags & CTL_BEARG_RD) { 2268 tmpptr = ctl_copyin_alloc(args[i].value, 2269 args[i].vallen, error_str, error_str_len); 2270 if (tmpptr == NULL) 2271 goto bailout; 2272 if ((args[i].flags & CTL_BEARG_ASCII) 2273 && (tmpptr[args[i].vallen - 1] != '\0')) { 2274 snprintf(error_str, error_str_len, "Argument " 2275 "%d value is not NUL-terminated", i); 2276 goto bailout; 2277 } 2278 args[i].kvalue = tmpptr; 2279 } else { 2280 args[i].kvalue = malloc(args[i].vallen, 2281 M_CTL, M_WAITOK | M_ZERO); 2282 } 2283 } 2284 2285 return (args); 2286bailout: 2287 2288 ctl_free_args(num_args, args); 2289 2290 return (NULL); 2291} 2292 2293static void 2294ctl_copyout_args(int num_args, struct ctl_be_arg *args) 2295{ 2296 int i; 2297 2298 for (i = 0; i < num_args; i++) { 2299 if (args[i].flags & CTL_BEARG_WR) 2300 copyout(args[i].kvalue, args[i].value, args[i].vallen); 2301 } 2302} 2303 2304/* 2305 * Escape characters that are illegal or not recommended in XML. 2306 */ 2307int 2308ctl_sbuf_printf_esc(struct sbuf *sb, char *str, int size) 2309{ 2310 char *end = str + size; 2311 int retval; 2312 2313 retval = 0; 2314 2315 for (; *str && str < end; str++) { 2316 switch (*str) { 2317 case '&': 2318 retval = sbuf_printf(sb, "&"); 2319 break; 2320 case '>': 2321 retval = sbuf_printf(sb, ">"); 2322 break; 2323 case '<': 2324 retval = sbuf_printf(sb, "<"); 2325 break; 2326 default: 2327 retval = sbuf_putc(sb, *str); 2328 break; 2329 } 2330 2331 if (retval != 0) 2332 break; 2333 2334 } 2335 2336 return (retval); 2337} 2338 2339static void 2340ctl_id_sbuf(struct ctl_devid *id, struct sbuf *sb) 2341{ 2342 struct scsi_vpd_id_descriptor *desc; 2343 int i; 2344 2345 if (id == NULL || id->len < 4) 2346 return; 2347 desc = (struct scsi_vpd_id_descriptor *)id->data; 2348 switch (desc->id_type & SVPD_ID_TYPE_MASK) { 2349 case SVPD_ID_TYPE_T10: 2350 sbuf_printf(sb, "t10."); 2351 break; 2352 case SVPD_ID_TYPE_EUI64: 2353 sbuf_printf(sb, "eui."); 2354 break; 2355 case SVPD_ID_TYPE_NAA: 2356 sbuf_printf(sb, "naa."); 2357 break; 2358 case SVPD_ID_TYPE_SCSI_NAME: 2359 break; 2360 } 2361 switch (desc->proto_codeset & SVPD_ID_CODESET_MASK) { 2362 case SVPD_ID_CODESET_BINARY: 2363 for (i = 0; i < desc->length; i++) 2364 sbuf_printf(sb, "%02x", desc->identifier[i]); 2365 break; 2366 case SVPD_ID_CODESET_ASCII: 2367 sbuf_printf(sb, "%.*s", (int)desc->length, 2368 (char *)desc->identifier); 2369 break; 2370 case SVPD_ID_CODESET_UTF8: 2371 sbuf_printf(sb, "%s", (char *)desc->identifier); 2372 break; 2373 } 2374} 2375 2376static int 2377ctl_ioctl(struct cdev *dev, u_long cmd, caddr_t addr, int flag, 2378 struct thread *td) 2379{ 2380 struct ctl_softc *softc; 2381 struct ctl_lun *lun; 2382 int retval; 2383 2384 softc = control_softc; 2385 2386 retval = 0; 2387 2388 switch (cmd) { 2389 case CTL_IO: 2390 retval = ctl_ioctl_io(dev, cmd, addr, flag, td); 2391 break; 2392 case CTL_ENABLE_PORT: 2393 case CTL_DISABLE_PORT: 2394 case CTL_SET_PORT_WWNS: { 2395 struct ctl_port *port; 2396 struct ctl_port_entry *entry; 2397 2398 entry = (struct ctl_port_entry *)addr; 2399 2400 mtx_lock(&softc->ctl_lock); 2401 STAILQ_FOREACH(port, &softc->port_list, links) { 2402 int action, done; 2403 2404 if (port->targ_port < softc->port_min || 2405 port->targ_port >= softc->port_max) 2406 continue; 2407 2408 action = 0; 2409 done = 0; 2410 if ((entry->port_type == CTL_PORT_NONE) 2411 && (entry->targ_port == port->targ_port)) { 2412 /* 2413 * If the user only wants to enable or 2414 * disable or set WWNs on a specific port, 2415 * do the operation and we're done. 2416 */ 2417 action = 1; 2418 done = 1; 2419 } else if (entry->port_type & port->port_type) { 2420 /* 2421 * Compare the user's type mask with the 2422 * particular frontend type to see if we 2423 * have a match. 2424 */ 2425 action = 1; 2426 done = 0; 2427 2428 /* 2429 * Make sure the user isn't trying to set 2430 * WWNs on multiple ports at the same time. 2431 */ 2432 if (cmd == CTL_SET_PORT_WWNS) { 2433 printf("%s: Can't set WWNs on " 2434 "multiple ports\n", __func__); 2435 retval = EINVAL; 2436 break; 2437 } 2438 } 2439 if (action == 0) 2440 continue; 2441 2442 /* 2443 * XXX KDM we have to drop the lock here, because 2444 * the online/offline operations can potentially 2445 * block. We need to reference count the frontends 2446 * so they can't go away, 2447 */ 2448 if (cmd == CTL_ENABLE_PORT) { 2449 mtx_unlock(&softc->ctl_lock); 2450 ctl_port_online(port); 2451 mtx_lock(&softc->ctl_lock); 2452 } else if (cmd == CTL_DISABLE_PORT) { 2453 mtx_unlock(&softc->ctl_lock); 2454 ctl_port_offline(port); 2455 mtx_lock(&softc->ctl_lock); 2456 } else if (cmd == CTL_SET_PORT_WWNS) { 2457 ctl_port_set_wwns(port, 2458 (entry->flags & CTL_PORT_WWNN_VALID) ? 2459 1 : 0, entry->wwnn, 2460 (entry->flags & CTL_PORT_WWPN_VALID) ? 2461 1 : 0, entry->wwpn); 2462 } 2463 if (done != 0) 2464 break; 2465 } 2466 mtx_unlock(&softc->ctl_lock); 2467 break; 2468 } 2469 case CTL_GET_PORT_LIST: { 2470 struct ctl_port *port; 2471 struct ctl_port_list *list; 2472 int i; 2473 2474 list = (struct ctl_port_list *)addr; 2475 2476 if (list->alloc_len != (list->alloc_num * 2477 sizeof(struct ctl_port_entry))) { 2478 printf("%s: CTL_GET_PORT_LIST: alloc_len %u != " 2479 "alloc_num %u * sizeof(struct ctl_port_entry) " 2480 "%zu\n", __func__, list->alloc_len, 2481 list->alloc_num, sizeof(struct ctl_port_entry)); 2482 retval = EINVAL; 2483 break; 2484 } 2485 list->fill_len = 0; 2486 list->fill_num = 0; 2487 list->dropped_num = 0; 2488 i = 0; 2489 mtx_lock(&softc->ctl_lock); 2490 STAILQ_FOREACH(port, &softc->port_list, links) { 2491 struct ctl_port_entry entry, *list_entry; 2492 2493 if (list->fill_num >= list->alloc_num) { 2494 list->dropped_num++; 2495 continue; 2496 } 2497 2498 entry.port_type = port->port_type; 2499 strlcpy(entry.port_name, port->port_name, 2500 sizeof(entry.port_name)); 2501 entry.targ_port = port->targ_port; 2502 entry.physical_port = port->physical_port; 2503 entry.virtual_port = port->virtual_port; 2504 entry.wwnn = port->wwnn; 2505 entry.wwpn = port->wwpn; 2506 if (port->status & CTL_PORT_STATUS_ONLINE) 2507 entry.online = 1; 2508 else 2509 entry.online = 0; 2510 2511 list_entry = &list->entries[i]; 2512 2513 retval = copyout(&entry, list_entry, sizeof(entry)); 2514 if (retval != 0) { 2515 printf("%s: CTL_GET_PORT_LIST: copyout " 2516 "returned %d\n", __func__, retval); 2517 break; 2518 } 2519 i++; 2520 list->fill_num++; 2521 list->fill_len += sizeof(entry); 2522 } 2523 mtx_unlock(&softc->ctl_lock); 2524 2525 /* 2526 * If this is non-zero, we had a copyout fault, so there's 2527 * probably no point in attempting to set the status inside 2528 * the structure. 2529 */ 2530 if (retval != 0) 2531 break; 2532 2533 if (list->dropped_num > 0) 2534 list->status = CTL_PORT_LIST_NEED_MORE_SPACE; 2535 else 2536 list->status = CTL_PORT_LIST_OK; 2537 break; 2538 } 2539 case CTL_DUMP_OOA: { 2540 union ctl_io *io; 2541 char printbuf[128]; 2542 struct sbuf sb; 2543 2544 mtx_lock(&softc->ctl_lock); 2545 printf("Dumping OOA queues:\n"); 2546 STAILQ_FOREACH(lun, &softc->lun_list, links) { 2547 mtx_lock(&lun->lun_lock); 2548 for (io = (union ctl_io *)TAILQ_FIRST( 2549 &lun->ooa_queue); io != NULL; 2550 io = (union ctl_io *)TAILQ_NEXT(&io->io_hdr, 2551 ooa_links)) { 2552 sbuf_new(&sb, printbuf, sizeof(printbuf), 2553 SBUF_FIXEDLEN); 2554 sbuf_printf(&sb, "LUN %jd tag 0x%04x%s%s%s%s: ", 2555 (intmax_t)lun->lun, 2556 io->scsiio.tag_num, 2557 (io->io_hdr.flags & 2558 CTL_FLAG_BLOCKED) ? "" : " BLOCKED", 2559 (io->io_hdr.flags & 2560 CTL_FLAG_DMA_INPROG) ? " DMA" : "", 2561 (io->io_hdr.flags & 2562 CTL_FLAG_ABORT) ? " ABORT" : "", 2563 (io->io_hdr.flags & 2564 CTL_FLAG_IS_WAS_ON_RTR) ? " RTR" : ""); 2565 ctl_scsi_command_string(&io->scsiio, NULL, &sb); 2566 sbuf_finish(&sb); 2567 printf("%s\n", sbuf_data(&sb)); 2568 } 2569 mtx_unlock(&lun->lun_lock); 2570 } 2571 printf("OOA queues dump done\n"); 2572 mtx_unlock(&softc->ctl_lock); 2573 break; 2574 } 2575 case CTL_GET_OOA: { 2576 struct ctl_ooa *ooa_hdr; 2577 struct ctl_ooa_entry *entries; 2578 uint32_t cur_fill_num; 2579 2580 ooa_hdr = (struct ctl_ooa *)addr; 2581 2582 if ((ooa_hdr->alloc_len == 0) 2583 || (ooa_hdr->alloc_num == 0)) { 2584 printf("%s: CTL_GET_OOA: alloc len %u and alloc num %u " 2585 "must be non-zero\n", __func__, 2586 ooa_hdr->alloc_len, ooa_hdr->alloc_num); 2587 retval = EINVAL; 2588 break; 2589 } 2590 2591 if (ooa_hdr->alloc_len != (ooa_hdr->alloc_num * 2592 sizeof(struct ctl_ooa_entry))) { 2593 printf("%s: CTL_GET_OOA: alloc len %u must be alloc " 2594 "num %d * sizeof(struct ctl_ooa_entry) %zd\n", 2595 __func__, ooa_hdr->alloc_len, 2596 ooa_hdr->alloc_num,sizeof(struct ctl_ooa_entry)); 2597 retval = EINVAL; 2598 break; 2599 } 2600 2601 entries = malloc(ooa_hdr->alloc_len, M_CTL, M_WAITOK | M_ZERO); 2602 if (entries == NULL) { 2603 printf("%s: could not allocate %d bytes for OOA " 2604 "dump\n", __func__, ooa_hdr->alloc_len); 2605 retval = ENOMEM; 2606 break; 2607 } 2608 2609 mtx_lock(&softc->ctl_lock); 2610 if (((ooa_hdr->flags & CTL_OOA_FLAG_ALL_LUNS) == 0) 2611 && ((ooa_hdr->lun_num >= CTL_MAX_LUNS) 2612 || (softc->ctl_luns[ooa_hdr->lun_num] == NULL))) { 2613 mtx_unlock(&softc->ctl_lock); 2614 free(entries, M_CTL); 2615 printf("%s: CTL_GET_OOA: invalid LUN %ju\n", 2616 __func__, (uintmax_t)ooa_hdr->lun_num); 2617 retval = EINVAL; 2618 break; 2619 } 2620 2621 cur_fill_num = 0; 2622 2623 if (ooa_hdr->flags & CTL_OOA_FLAG_ALL_LUNS) { 2624 STAILQ_FOREACH(lun, &softc->lun_list, links) { 2625 retval = ctl_ioctl_fill_ooa(lun, &cur_fill_num, 2626 ooa_hdr, entries); 2627 if (retval != 0) 2628 break; 2629 } 2630 if (retval != 0) { 2631 mtx_unlock(&softc->ctl_lock); 2632 free(entries, M_CTL); 2633 break; 2634 } 2635 } else { 2636 lun = softc->ctl_luns[ooa_hdr->lun_num]; 2637 2638 retval = ctl_ioctl_fill_ooa(lun, &cur_fill_num,ooa_hdr, 2639 entries); 2640 } 2641 mtx_unlock(&softc->ctl_lock); 2642 2643 ooa_hdr->fill_num = min(cur_fill_num, ooa_hdr->alloc_num); 2644 ooa_hdr->fill_len = ooa_hdr->fill_num * 2645 sizeof(struct ctl_ooa_entry); 2646 retval = copyout(entries, ooa_hdr->entries, ooa_hdr->fill_len); 2647 if (retval != 0) { 2648 printf("%s: error copying out %d bytes for OOA dump\n", 2649 __func__, ooa_hdr->fill_len); 2650 } 2651 2652 getbintime(&ooa_hdr->cur_bt); 2653 2654 if (cur_fill_num > ooa_hdr->alloc_num) { 2655 ooa_hdr->dropped_num = cur_fill_num -ooa_hdr->alloc_num; 2656 ooa_hdr->status = CTL_OOA_NEED_MORE_SPACE; 2657 } else { 2658 ooa_hdr->dropped_num = 0; 2659 ooa_hdr->status = CTL_OOA_OK; 2660 } 2661 2662 free(entries, M_CTL); 2663 break; 2664 } 2665 case CTL_CHECK_OOA: { 2666 union ctl_io *io; 2667 struct ctl_ooa_info *ooa_info; 2668 2669 2670 ooa_info = (struct ctl_ooa_info *)addr; 2671 2672 if (ooa_info->lun_id >= CTL_MAX_LUNS) { 2673 ooa_info->status = CTL_OOA_INVALID_LUN; 2674 break; 2675 } 2676 mtx_lock(&softc->ctl_lock); 2677 lun = softc->ctl_luns[ooa_info->lun_id]; 2678 if (lun == NULL) { 2679 mtx_unlock(&softc->ctl_lock); 2680 ooa_info->status = CTL_OOA_INVALID_LUN; 2681 break; 2682 } 2683 mtx_lock(&lun->lun_lock); 2684 mtx_unlock(&softc->ctl_lock); 2685 ooa_info->num_entries = 0; 2686 for (io = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); 2687 io != NULL; io = (union ctl_io *)TAILQ_NEXT( 2688 &io->io_hdr, ooa_links)) { 2689 ooa_info->num_entries++; 2690 } 2691 mtx_unlock(&lun->lun_lock); 2692 2693 ooa_info->status = CTL_OOA_SUCCESS; 2694 2695 break; 2696 } 2697 case CTL_DELAY_IO: { 2698 struct ctl_io_delay_info *delay_info; 2699 2700 delay_info = (struct ctl_io_delay_info *)addr; 2701 2702#ifdef CTL_IO_DELAY 2703 mtx_lock(&softc->ctl_lock); 2704 2705 if ((delay_info->lun_id >= CTL_MAX_LUNS) 2706 || (softc->ctl_luns[delay_info->lun_id] == NULL)) { 2707 delay_info->status = CTL_DELAY_STATUS_INVALID_LUN; 2708 } else { 2709 lun = softc->ctl_luns[delay_info->lun_id]; 2710 mtx_lock(&lun->lun_lock); 2711 2712 delay_info->status = CTL_DELAY_STATUS_OK; 2713 2714 switch (delay_info->delay_type) { 2715 case CTL_DELAY_TYPE_CONT: 2716 break; 2717 case CTL_DELAY_TYPE_ONESHOT: 2718 break; 2719 default: 2720 delay_info->status = 2721 CTL_DELAY_STATUS_INVALID_TYPE; 2722 break; 2723 } 2724 2725 switch (delay_info->delay_loc) { 2726 case CTL_DELAY_LOC_DATAMOVE: 2727 lun->delay_info.datamove_type = 2728 delay_info->delay_type; 2729 lun->delay_info.datamove_delay = 2730 delay_info->delay_secs; 2731 break; 2732 case CTL_DELAY_LOC_DONE: 2733 lun->delay_info.done_type = 2734 delay_info->delay_type; 2735 lun->delay_info.done_delay = 2736 delay_info->delay_secs; 2737 break; 2738 default: 2739 delay_info->status = 2740 CTL_DELAY_STATUS_INVALID_LOC; 2741 break; 2742 } 2743 mtx_unlock(&lun->lun_lock); 2744 } 2745 2746 mtx_unlock(&softc->ctl_lock); 2747#else 2748 delay_info->status = CTL_DELAY_STATUS_NOT_IMPLEMENTED; 2749#endif /* CTL_IO_DELAY */ 2750 break; 2751 } 2752 case CTL_REALSYNC_SET: { 2753 int *syncstate; 2754 2755 syncstate = (int *)addr; 2756 2757 mtx_lock(&softc->ctl_lock); 2758 switch (*syncstate) { 2759 case 0: 2760 softc->flags &= ~CTL_FLAG_REAL_SYNC; 2761 break; 2762 case 1: 2763 softc->flags |= CTL_FLAG_REAL_SYNC; 2764 break; 2765 default: 2766 retval = EINVAL; 2767 break; 2768 } 2769 mtx_unlock(&softc->ctl_lock); 2770 break; 2771 } 2772 case CTL_REALSYNC_GET: { 2773 int *syncstate; 2774 2775 syncstate = (int*)addr; 2776 2777 mtx_lock(&softc->ctl_lock); 2778 if (softc->flags & CTL_FLAG_REAL_SYNC) 2779 *syncstate = 1; 2780 else 2781 *syncstate = 0; 2782 mtx_unlock(&softc->ctl_lock); 2783 2784 break; 2785 } 2786 case CTL_SETSYNC: 2787 case CTL_GETSYNC: { 2788 struct ctl_sync_info *sync_info; 2789 2790 sync_info = (struct ctl_sync_info *)addr; 2791 2792 mtx_lock(&softc->ctl_lock); 2793 lun = softc->ctl_luns[sync_info->lun_id]; 2794 if (lun == NULL) { 2795 mtx_unlock(&softc->ctl_lock); 2796 sync_info->status = CTL_GS_SYNC_NO_LUN; 2797 break; 2798 } 2799 /* 2800 * Get or set the sync interval. We're not bounds checking 2801 * in the set case, hopefully the user won't do something 2802 * silly. 2803 */ 2804 mtx_lock(&lun->lun_lock); 2805 mtx_unlock(&softc->ctl_lock); 2806 if (cmd == CTL_GETSYNC) 2807 sync_info->sync_interval = lun->sync_interval; 2808 else 2809 lun->sync_interval = sync_info->sync_interval; 2810 mtx_unlock(&lun->lun_lock); 2811 2812 sync_info->status = CTL_GS_SYNC_OK; 2813 2814 break; 2815 } 2816 case CTL_GETSTATS: { 2817 struct ctl_stats *stats; 2818 int i; 2819 2820 stats = (struct ctl_stats *)addr; 2821 2822 if ((sizeof(struct ctl_lun_io_stats) * softc->num_luns) > 2823 stats->alloc_len) { 2824 stats->status = CTL_SS_NEED_MORE_SPACE; 2825 stats->num_luns = softc->num_luns; 2826 break; 2827 } 2828 /* 2829 * XXX KDM no locking here. If the LUN list changes, 2830 * things can blow up. 2831 */ 2832 for (i = 0, lun = STAILQ_FIRST(&softc->lun_list); lun != NULL; 2833 i++, lun = STAILQ_NEXT(lun, links)) { 2834 retval = copyout(&lun->stats, &stats->lun_stats[i], 2835 sizeof(lun->stats)); 2836 if (retval != 0) 2837 break; 2838 } 2839 stats->num_luns = softc->num_luns; 2840 stats->fill_len = sizeof(struct ctl_lun_io_stats) * 2841 softc->num_luns; 2842 stats->status = CTL_SS_OK; 2843#ifdef CTL_TIME_IO 2844 stats->flags = CTL_STATS_FLAG_TIME_VALID; 2845#else 2846 stats->flags = CTL_STATS_FLAG_NONE; 2847#endif 2848 getnanouptime(&stats->timestamp); 2849 break; 2850 } 2851 case CTL_ERROR_INJECT: { 2852 struct ctl_error_desc *err_desc, *new_err_desc; 2853 2854 err_desc = (struct ctl_error_desc *)addr; 2855 2856 new_err_desc = malloc(sizeof(*new_err_desc), M_CTL, 2857 M_WAITOK | M_ZERO); 2858 bcopy(err_desc, new_err_desc, sizeof(*new_err_desc)); 2859 2860 mtx_lock(&softc->ctl_lock); 2861 lun = softc->ctl_luns[err_desc->lun_id]; 2862 if (lun == NULL) { 2863 mtx_unlock(&softc->ctl_lock); 2864 free(new_err_desc, M_CTL); 2865 printf("%s: CTL_ERROR_INJECT: invalid LUN %ju\n", 2866 __func__, (uintmax_t)err_desc->lun_id); 2867 retval = EINVAL; 2868 break; 2869 } 2870 mtx_lock(&lun->lun_lock); 2871 mtx_unlock(&softc->ctl_lock); 2872 2873 /* 2874 * We could do some checking here to verify the validity 2875 * of the request, but given the complexity of error 2876 * injection requests, the checking logic would be fairly 2877 * complex. 2878 * 2879 * For now, if the request is invalid, it just won't get 2880 * executed and might get deleted. 2881 */ 2882 STAILQ_INSERT_TAIL(&lun->error_list, new_err_desc, links); 2883 2884 /* 2885 * XXX KDM check to make sure the serial number is unique, 2886 * in case we somehow manage to wrap. That shouldn't 2887 * happen for a very long time, but it's the right thing to 2888 * do. 2889 */ 2890 new_err_desc->serial = lun->error_serial; 2891 err_desc->serial = lun->error_serial; 2892 lun->error_serial++; 2893 2894 mtx_unlock(&lun->lun_lock); 2895 break; 2896 } 2897 case CTL_ERROR_INJECT_DELETE: { 2898 struct ctl_error_desc *delete_desc, *desc, *desc2; 2899 int delete_done; 2900 2901 delete_desc = (struct ctl_error_desc *)addr; 2902 delete_done = 0; 2903 2904 mtx_lock(&softc->ctl_lock); 2905 lun = softc->ctl_luns[delete_desc->lun_id]; 2906 if (lun == NULL) { 2907 mtx_unlock(&softc->ctl_lock); 2908 printf("%s: CTL_ERROR_INJECT_DELETE: invalid LUN %ju\n", 2909 __func__, (uintmax_t)delete_desc->lun_id); 2910 retval = EINVAL; 2911 break; 2912 } 2913 mtx_lock(&lun->lun_lock); 2914 mtx_unlock(&softc->ctl_lock); 2915 STAILQ_FOREACH_SAFE(desc, &lun->error_list, links, desc2) { 2916 if (desc->serial != delete_desc->serial) 2917 continue; 2918 2919 STAILQ_REMOVE(&lun->error_list, desc, ctl_error_desc, 2920 links); 2921 free(desc, M_CTL); 2922 delete_done = 1; 2923 } 2924 mtx_unlock(&lun->lun_lock); 2925 if (delete_done == 0) { 2926 printf("%s: CTL_ERROR_INJECT_DELETE: can't find " 2927 "error serial %ju on LUN %u\n", __func__, 2928 delete_desc->serial, delete_desc->lun_id); 2929 retval = EINVAL; 2930 break; 2931 } 2932 break; 2933 } 2934 case CTL_DUMP_STRUCTS: { 2935 int i, j, k; 2936 struct ctl_port *port; 2937 struct ctl_frontend *fe; 2938 2939 mtx_lock(&softc->ctl_lock); 2940 printf("CTL Persistent Reservation information start:\n"); 2941 for (i = 0; i < CTL_MAX_LUNS; i++) { 2942 lun = softc->ctl_luns[i]; 2943 2944 if ((lun == NULL) 2945 || ((lun->flags & CTL_LUN_DISABLED) != 0)) 2946 continue; 2947 2948 for (j = 0; j < CTL_MAX_PORTS; j++) { 2949 if (lun->pr_keys[j] == NULL) 2950 continue; 2951 for (k = 0; k < CTL_MAX_INIT_PER_PORT; k++){ 2952 if (lun->pr_keys[j][k] == 0) 2953 continue; 2954 printf(" LUN %d port %d iid %d key " 2955 "%#jx\n", i, j, k, 2956 (uintmax_t)lun->pr_keys[j][k]); 2957 } 2958 } 2959 } 2960 printf("CTL Persistent Reservation information end\n"); 2961 printf("CTL Ports:\n"); 2962 STAILQ_FOREACH(port, &softc->port_list, links) { 2963 printf(" Port %d '%s' Frontend '%s' Type %u pp %d vp %d WWNN " 2964 "%#jx WWPN %#jx\n", port->targ_port, port->port_name, 2965 port->frontend->name, port->port_type, 2966 port->physical_port, port->virtual_port, 2967 (uintmax_t)port->wwnn, (uintmax_t)port->wwpn); 2968 for (j = 0; j < CTL_MAX_INIT_PER_PORT; j++) { 2969 if (port->wwpn_iid[j].in_use == 0 && 2970 port->wwpn_iid[j].wwpn == 0 && 2971 port->wwpn_iid[j].name == NULL) 2972 continue; 2973 2974 printf(" iid %u use %d WWPN %#jx '%s'\n", 2975 j, port->wwpn_iid[j].in_use, 2976 (uintmax_t)port->wwpn_iid[j].wwpn, 2977 port->wwpn_iid[j].name); 2978 } 2979 } 2980 printf("CTL Port information end\n"); 2981 mtx_unlock(&softc->ctl_lock); 2982 /* 2983 * XXX KDM calling this without a lock. We'd likely want 2984 * to drop the lock before calling the frontend's dump 2985 * routine anyway. 2986 */ 2987 printf("CTL Frontends:\n"); 2988 STAILQ_FOREACH(fe, &softc->fe_list, links) { 2989 printf(" Frontend '%s'\n", fe->name); 2990 if (fe->fe_dump != NULL) 2991 fe->fe_dump(); 2992 } 2993 printf("CTL Frontend information end\n"); 2994 break; 2995 } 2996 case CTL_LUN_REQ: { 2997 struct ctl_lun_req *lun_req; 2998 struct ctl_backend_driver *backend; 2999 3000 lun_req = (struct ctl_lun_req *)addr; 3001 3002 backend = ctl_backend_find(lun_req->backend); 3003 if (backend == NULL) { 3004 lun_req->status = CTL_LUN_ERROR; 3005 snprintf(lun_req->error_str, 3006 sizeof(lun_req->error_str), 3007 "Backend \"%s\" not found.", 3008 lun_req->backend); 3009 break; 3010 } 3011 if (lun_req->num_be_args > 0) { 3012 lun_req->kern_be_args = ctl_copyin_args( 3013 lun_req->num_be_args, 3014 lun_req->be_args, 3015 lun_req->error_str, 3016 sizeof(lun_req->error_str)); 3017 if (lun_req->kern_be_args == NULL) { 3018 lun_req->status = CTL_LUN_ERROR; 3019 break; 3020 } 3021 } 3022 3023 retval = backend->ioctl(dev, cmd, addr, flag, td); 3024 3025 if (lun_req->num_be_args > 0) { 3026 ctl_copyout_args(lun_req->num_be_args, 3027 lun_req->kern_be_args); 3028 ctl_free_args(lun_req->num_be_args, 3029 lun_req->kern_be_args); 3030 } 3031 break; 3032 } 3033 case CTL_LUN_LIST: { 3034 struct sbuf *sb; 3035 struct ctl_lun_list *list; 3036 struct ctl_option *opt; 3037 3038 list = (struct ctl_lun_list *)addr; 3039 3040 /* 3041 * Allocate a fixed length sbuf here, based on the length 3042 * of the user's buffer. We could allocate an auto-extending 3043 * buffer, and then tell the user how much larger our 3044 * amount of data is than his buffer, but that presents 3045 * some problems: 3046 * 3047 * 1. The sbuf(9) routines use a blocking malloc, and so 3048 * we can't hold a lock while calling them with an 3049 * auto-extending buffer. 3050 * 3051 * 2. There is not currently a LUN reference counting 3052 * mechanism, outside of outstanding transactions on 3053 * the LUN's OOA queue. So a LUN could go away on us 3054 * while we're getting the LUN number, backend-specific 3055 * information, etc. Thus, given the way things 3056 * currently work, we need to hold the CTL lock while 3057 * grabbing LUN information. 3058 * 3059 * So, from the user's standpoint, the best thing to do is 3060 * allocate what he thinks is a reasonable buffer length, 3061 * and then if he gets a CTL_LUN_LIST_NEED_MORE_SPACE error, 3062 * double the buffer length and try again. (And repeat 3063 * that until he succeeds.) 3064 */ 3065 sb = sbuf_new(NULL, NULL, list->alloc_len, SBUF_FIXEDLEN); 3066 if (sb == NULL) { 3067 list->status = CTL_LUN_LIST_ERROR; 3068 snprintf(list->error_str, sizeof(list->error_str), 3069 "Unable to allocate %d bytes for LUN list", 3070 list->alloc_len); 3071 break; 3072 } 3073 3074 sbuf_printf(sb, "<ctllunlist>\n"); 3075 3076 mtx_lock(&softc->ctl_lock); 3077 STAILQ_FOREACH(lun, &softc->lun_list, links) { 3078 mtx_lock(&lun->lun_lock); 3079 retval = sbuf_printf(sb, "<lun id=\"%ju\">\n", 3080 (uintmax_t)lun->lun); 3081 3082 /* 3083 * Bail out as soon as we see that we've overfilled 3084 * the buffer. 3085 */ 3086 if (retval != 0) 3087 break; 3088 3089 retval = sbuf_printf(sb, "\t<backend_type>%s" 3090 "</backend_type>\n", 3091 (lun->backend == NULL) ? "none" : 3092 lun->backend->name); 3093 3094 if (retval != 0) 3095 break; 3096 3097 retval = sbuf_printf(sb, "\t<lun_type>%d</lun_type>\n", 3098 lun->be_lun->lun_type); 3099 3100 if (retval != 0) 3101 break; 3102 3103 if (lun->backend == NULL) { 3104 retval = sbuf_printf(sb, "</lun>\n"); 3105 if (retval != 0) 3106 break; 3107 continue; 3108 } 3109 3110 retval = sbuf_printf(sb, "\t<size>%ju</size>\n", 3111 (lun->be_lun->maxlba > 0) ? 3112 lun->be_lun->maxlba + 1 : 0); 3113 3114 if (retval != 0) 3115 break; 3116 3117 retval = sbuf_printf(sb, "\t<blocksize>%u</blocksize>\n", 3118 lun->be_lun->blocksize); 3119 3120 if (retval != 0) 3121 break; 3122 3123 retval = sbuf_printf(sb, "\t<serial_number>"); 3124 3125 if (retval != 0) 3126 break; 3127 3128 retval = ctl_sbuf_printf_esc(sb, 3129 lun->be_lun->serial_num, 3130 sizeof(lun->be_lun->serial_num)); 3131 3132 if (retval != 0) 3133 break; 3134 3135 retval = sbuf_printf(sb, "</serial_number>\n"); 3136 3137 if (retval != 0) 3138 break; 3139 3140 retval = sbuf_printf(sb, "\t<device_id>"); 3141 3142 if (retval != 0) 3143 break; 3144 3145 retval = ctl_sbuf_printf_esc(sb, 3146 lun->be_lun->device_id, 3147 sizeof(lun->be_lun->device_id)); 3148 3149 if (retval != 0) 3150 break; 3151 3152 retval = sbuf_printf(sb, "</device_id>\n"); 3153 3154 if (retval != 0) 3155 break; 3156 3157 if (lun->backend->lun_info != NULL) { 3158 retval = lun->backend->lun_info(lun->be_lun->be_lun, sb); 3159 if (retval != 0) 3160 break; 3161 } 3162 STAILQ_FOREACH(opt, &lun->be_lun->options, links) { 3163 retval = sbuf_printf(sb, "\t<%s>%s</%s>\n", 3164 opt->name, opt->value, opt->name); 3165 if (retval != 0) 3166 break; 3167 } 3168 3169 retval = sbuf_printf(sb, "</lun>\n"); 3170 3171 if (retval != 0) 3172 break; 3173 mtx_unlock(&lun->lun_lock); 3174 } 3175 if (lun != NULL) 3176 mtx_unlock(&lun->lun_lock); 3177 mtx_unlock(&softc->ctl_lock); 3178 3179 if ((retval != 0) 3180 || ((retval = sbuf_printf(sb, "</ctllunlist>\n")) != 0)) { 3181 retval = 0; 3182 sbuf_delete(sb); 3183 list->status = CTL_LUN_LIST_NEED_MORE_SPACE; 3184 snprintf(list->error_str, sizeof(list->error_str), 3185 "Out of space, %d bytes is too small", 3186 list->alloc_len); 3187 break; 3188 } 3189 3190 sbuf_finish(sb); 3191 3192 retval = copyout(sbuf_data(sb), list->lun_xml, 3193 sbuf_len(sb) + 1); 3194 3195 list->fill_len = sbuf_len(sb) + 1; 3196 list->status = CTL_LUN_LIST_OK; 3197 sbuf_delete(sb); 3198 break; 3199 } 3200 case CTL_ISCSI: { 3201 struct ctl_iscsi *ci; 3202 struct ctl_frontend *fe; 3203 3204 ci = (struct ctl_iscsi *)addr; 3205 3206 fe = ctl_frontend_find("iscsi"); 3207 if (fe == NULL) { 3208 ci->status = CTL_ISCSI_ERROR; 3209 snprintf(ci->error_str, sizeof(ci->error_str), 3210 "Frontend \"iscsi\" not found."); 3211 break; 3212 } 3213 3214 retval = fe->ioctl(dev, cmd, addr, flag, td); 3215 break; 3216 } 3217 case CTL_PORT_REQ: { 3218 struct ctl_req *req; 3219 struct ctl_frontend *fe; 3220 3221 req = (struct ctl_req *)addr; 3222 3223 fe = ctl_frontend_find(req->driver); 3224 if (fe == NULL) { 3225 req->status = CTL_LUN_ERROR; 3226 snprintf(req->error_str, sizeof(req->error_str), 3227 "Frontend \"%s\" not found.", req->driver); 3228 break; 3229 } 3230 if (req->num_args > 0) { 3231 req->kern_args = ctl_copyin_args(req->num_args, 3232 req->args, req->error_str, sizeof(req->error_str)); 3233 if (req->kern_args == NULL) { 3234 req->status = CTL_LUN_ERROR; 3235 break; 3236 } 3237 } 3238 3239 if (fe->ioctl) 3240 retval = fe->ioctl(dev, cmd, addr, flag, td); 3241 else 3242 retval = ENODEV; 3243 3244 if (req->num_args > 0) { 3245 ctl_copyout_args(req->num_args, req->kern_args); 3246 ctl_free_args(req->num_args, req->kern_args); 3247 } 3248 break; 3249 } 3250 case CTL_PORT_LIST: { 3251 struct sbuf *sb; 3252 struct ctl_port *port; 3253 struct ctl_lun_list *list; 3254 struct ctl_option *opt; 3255 int j; 3256 uint32_t plun; 3257 3258 list = (struct ctl_lun_list *)addr; 3259 3260 sb = sbuf_new(NULL, NULL, list->alloc_len, SBUF_FIXEDLEN); 3261 if (sb == NULL) { 3262 list->status = CTL_LUN_LIST_ERROR; 3263 snprintf(list->error_str, sizeof(list->error_str), 3264 "Unable to allocate %d bytes for LUN list", 3265 list->alloc_len); 3266 break; 3267 } 3268 3269 sbuf_printf(sb, "<ctlportlist>\n"); 3270 3271 mtx_lock(&softc->ctl_lock); 3272 STAILQ_FOREACH(port, &softc->port_list, links) { 3273 retval = sbuf_printf(sb, "<targ_port id=\"%ju\">\n", 3274 (uintmax_t)port->targ_port); 3275 3276 /* 3277 * Bail out as soon as we see that we've overfilled 3278 * the buffer. 3279 */ 3280 if (retval != 0) 3281 break; 3282 3283 retval = sbuf_printf(sb, "\t<frontend_type>%s" 3284 "</frontend_type>\n", port->frontend->name); 3285 if (retval != 0) 3286 break; 3287 3288 retval = sbuf_printf(sb, "\t<port_type>%d</port_type>\n", 3289 port->port_type); 3290 if (retval != 0) 3291 break; 3292 3293 retval = sbuf_printf(sb, "\t<online>%s</online>\n", 3294 (port->status & CTL_PORT_STATUS_ONLINE) ? "YES" : "NO"); 3295 if (retval != 0) 3296 break; 3297 3298 retval = sbuf_printf(sb, "\t<port_name>%s</port_name>\n", 3299 port->port_name); 3300 if (retval != 0) 3301 break; 3302 3303 retval = sbuf_printf(sb, "\t<physical_port>%d</physical_port>\n", 3304 port->physical_port); 3305 if (retval != 0) 3306 break; 3307 3308 retval = sbuf_printf(sb, "\t<virtual_port>%d</virtual_port>\n", 3309 port->virtual_port); 3310 if (retval != 0) 3311 break; 3312 3313 if (port->target_devid != NULL) { 3314 sbuf_printf(sb, "\t<target>"); 3315 ctl_id_sbuf(port->target_devid, sb); 3316 sbuf_printf(sb, "</target>\n"); 3317 } 3318 3319 if (port->port_devid != NULL) { 3320 sbuf_printf(sb, "\t<port>"); 3321 ctl_id_sbuf(port->port_devid, sb); 3322 sbuf_printf(sb, "</port>\n"); 3323 } 3324 3325 if (port->port_info != NULL) { 3326 retval = port->port_info(port->onoff_arg, sb); 3327 if (retval != 0) 3328 break; 3329 } 3330 STAILQ_FOREACH(opt, &port->options, links) { 3331 retval = sbuf_printf(sb, "\t<%s>%s</%s>\n", 3332 opt->name, opt->value, opt->name); 3333 if (retval != 0) 3334 break; 3335 } 3336 3337 if (port->lun_map != NULL) { 3338 sbuf_printf(sb, "\t<lun_map>on</lun_map>\n"); 3339 for (j = 0; j < CTL_MAX_LUNS; j++) { 3340 plun = ctl_lun_map_from_port(port, j); 3341 if (plun >= CTL_MAX_LUNS) 3342 continue; 3343 sbuf_printf(sb, 3344 "\t<lun id=\"%u\">%u</lun>\n", 3345 j, plun); 3346 } 3347 } 3348 3349 for (j = 0; j < CTL_MAX_INIT_PER_PORT; j++) { 3350 if (port->wwpn_iid[j].in_use == 0 || 3351 (port->wwpn_iid[j].wwpn == 0 && 3352 port->wwpn_iid[j].name == NULL)) 3353 continue; 3354 3355 if (port->wwpn_iid[j].name != NULL) 3356 retval = sbuf_printf(sb, 3357 "\t<initiator id=\"%u\">%s</initiator>\n", 3358 j, port->wwpn_iid[j].name); 3359 else 3360 retval = sbuf_printf(sb, 3361 "\t<initiator id=\"%u\">naa.%08jx</initiator>\n", 3362 j, port->wwpn_iid[j].wwpn); 3363 if (retval != 0) 3364 break; 3365 } 3366 if (retval != 0) 3367 break; 3368 3369 retval = sbuf_printf(sb, "</targ_port>\n"); 3370 if (retval != 0) 3371 break; 3372 } 3373 mtx_unlock(&softc->ctl_lock); 3374 3375 if ((retval != 0) 3376 || ((retval = sbuf_printf(sb, "</ctlportlist>\n")) != 0)) { 3377 retval = 0; 3378 sbuf_delete(sb); 3379 list->status = CTL_LUN_LIST_NEED_MORE_SPACE; 3380 snprintf(list->error_str, sizeof(list->error_str), 3381 "Out of space, %d bytes is too small", 3382 list->alloc_len); 3383 break; 3384 } 3385 3386 sbuf_finish(sb); 3387 3388 retval = copyout(sbuf_data(sb), list->lun_xml, 3389 sbuf_len(sb) + 1); 3390 3391 list->fill_len = sbuf_len(sb) + 1; 3392 list->status = CTL_LUN_LIST_OK; 3393 sbuf_delete(sb); 3394 break; 3395 } 3396 case CTL_LUN_MAP: { 3397 struct ctl_lun_map *lm = (struct ctl_lun_map *)addr; 3398 struct ctl_port *port; 3399 3400 mtx_lock(&softc->ctl_lock); 3401 if (lm->port < softc->port_min || 3402 lm->port >= softc->port_max || 3403 (port = softc->ctl_ports[lm->port]) == NULL) { 3404 mtx_unlock(&softc->ctl_lock); 3405 return (ENXIO); 3406 } 3407 if (port->status & CTL_PORT_STATUS_ONLINE) { 3408 STAILQ_FOREACH(lun, &softc->lun_list, links) { 3409 if (ctl_lun_map_to_port(port, lun->lun) >= 3410 CTL_MAX_LUNS) 3411 continue; 3412 mtx_lock(&lun->lun_lock); 3413 ctl_est_ua_port(lun, lm->port, -1, 3414 CTL_UA_LUN_CHANGE); 3415 mtx_unlock(&lun->lun_lock); 3416 } 3417 } 3418 mtx_unlock(&softc->ctl_lock); // XXX: port_enable sleeps 3419 if (lm->plun < CTL_MAX_LUNS) { 3420 if (lm->lun == UINT32_MAX) 3421 retval = ctl_lun_map_unset(port, lm->plun); 3422 else if (lm->lun < CTL_MAX_LUNS && 3423 softc->ctl_luns[lm->lun] != NULL) 3424 retval = ctl_lun_map_set(port, lm->plun, lm->lun); 3425 else 3426 return (ENXIO); 3427 } else if (lm->plun == UINT32_MAX) { 3428 if (lm->lun == UINT32_MAX) 3429 retval = ctl_lun_map_deinit(port); 3430 else 3431 retval = ctl_lun_map_init(port); 3432 } else 3433 return (ENXIO); 3434 if (port->status & CTL_PORT_STATUS_ONLINE) 3435 ctl_isc_announce_port(port); 3436 break; 3437 } 3438 default: { 3439 /* XXX KDM should we fix this? */ 3440#if 0 3441 struct ctl_backend_driver *backend; 3442 unsigned int type; 3443 int found; 3444 3445 found = 0; 3446 3447 /* 3448 * We encode the backend type as the ioctl type for backend 3449 * ioctls. So parse it out here, and then search for a 3450 * backend of this type. 3451 */ 3452 type = _IOC_TYPE(cmd); 3453 3454 STAILQ_FOREACH(backend, &softc->be_list, links) { 3455 if (backend->type == type) { 3456 found = 1; 3457 break; 3458 } 3459 } 3460 if (found == 0) { 3461 printf("ctl: unknown ioctl command %#lx or backend " 3462 "%d\n", cmd, type); 3463 retval = EINVAL; 3464 break; 3465 } 3466 retval = backend->ioctl(dev, cmd, addr, flag, td); 3467#endif 3468 retval = ENOTTY; 3469 break; 3470 } 3471 } 3472 return (retval); 3473} 3474 3475uint32_t 3476ctl_get_initindex(struct ctl_nexus *nexus) 3477{ 3478 return (nexus->initid + (nexus->targ_port * CTL_MAX_INIT_PER_PORT)); 3479} 3480 3481int 3482ctl_lun_map_init(struct ctl_port *port) 3483{ 3484 struct ctl_softc *softc = control_softc; 3485 struct ctl_lun *lun; 3486 uint32_t i; 3487 3488 if (port->lun_map == NULL) 3489 port->lun_map = malloc(sizeof(uint32_t) * CTL_MAX_LUNS, 3490 M_CTL, M_NOWAIT); 3491 if (port->lun_map == NULL) 3492 return (ENOMEM); 3493 for (i = 0; i < CTL_MAX_LUNS; i++) 3494 port->lun_map[i] = UINT32_MAX; 3495 if (port->status & CTL_PORT_STATUS_ONLINE) { 3496 if (port->lun_disable != NULL) { 3497 STAILQ_FOREACH(lun, &softc->lun_list, links) 3498 port->lun_disable(port->targ_lun_arg, lun->lun); 3499 } 3500 ctl_isc_announce_port(port); 3501 } 3502 return (0); 3503} 3504 3505int 3506ctl_lun_map_deinit(struct ctl_port *port) 3507{ 3508 struct ctl_softc *softc = control_softc; 3509 struct ctl_lun *lun; 3510 3511 if (port->lun_map == NULL) 3512 return (0); 3513 free(port->lun_map, M_CTL); 3514 port->lun_map = NULL; 3515 if (port->status & CTL_PORT_STATUS_ONLINE) { 3516 if (port->lun_enable != NULL) { 3517 STAILQ_FOREACH(lun, &softc->lun_list, links) 3518 port->lun_enable(port->targ_lun_arg, lun->lun); 3519 } 3520 ctl_isc_announce_port(port); 3521 } 3522 return (0); 3523} 3524 3525int 3526ctl_lun_map_set(struct ctl_port *port, uint32_t plun, uint32_t glun) 3527{ 3528 int status; 3529 uint32_t old; 3530 3531 if (port->lun_map == NULL) { 3532 status = ctl_lun_map_init(port); 3533 if (status != 0) 3534 return (status); 3535 } 3536 old = port->lun_map[plun]; 3537 port->lun_map[plun] = glun; 3538 if ((port->status & CTL_PORT_STATUS_ONLINE) && old >= CTL_MAX_LUNS) { 3539 if (port->lun_enable != NULL) 3540 port->lun_enable(port->targ_lun_arg, plun); 3541 ctl_isc_announce_port(port); 3542 } 3543 return (0); 3544} 3545 3546int 3547ctl_lun_map_unset(struct ctl_port *port, uint32_t plun) 3548{ 3549 uint32_t old; 3550 3551 if (port->lun_map == NULL) 3552 return (0); 3553 old = port->lun_map[plun]; 3554 port->lun_map[plun] = UINT32_MAX; 3555 if ((port->status & CTL_PORT_STATUS_ONLINE) && old < CTL_MAX_LUNS) { 3556 if (port->lun_disable != NULL) 3557 port->lun_disable(port->targ_lun_arg, plun); 3558 ctl_isc_announce_port(port); 3559 } 3560 return (0); 3561} 3562 3563uint32_t 3564ctl_lun_map_from_port(struct ctl_port *port, uint32_t lun_id) 3565{ 3566 3567 if (port == NULL) 3568 return (UINT32_MAX); 3569 if (port->lun_map == NULL || lun_id >= CTL_MAX_LUNS) 3570 return (lun_id); 3571 return (port->lun_map[lun_id]); 3572} 3573 3574uint32_t 3575ctl_lun_map_to_port(struct ctl_port *port, uint32_t lun_id) 3576{ 3577 uint32_t i; 3578 3579 if (port == NULL) 3580 return (UINT32_MAX); 3581 if (port->lun_map == NULL) 3582 return (lun_id); 3583 for (i = 0; i < CTL_MAX_LUNS; i++) { 3584 if (port->lun_map[i] == lun_id) 3585 return (i); 3586 } 3587 return (UINT32_MAX); 3588} 3589 3590static struct ctl_port * 3591ctl_io_port(struct ctl_io_hdr *io_hdr) 3592{ 3593 3594 return (control_softc->ctl_ports[io_hdr->nexus.targ_port]); 3595} 3596 3597int 3598ctl_ffz(uint32_t *mask, uint32_t first, uint32_t last) 3599{ 3600 int i; 3601 3602 for (i = first; i < last; i++) { 3603 if ((mask[i / 32] & (1 << (i % 32))) == 0) 3604 return (i); 3605 } 3606 return (-1); 3607} 3608 3609int 3610ctl_set_mask(uint32_t *mask, uint32_t bit) 3611{ 3612 uint32_t chunk, piece; 3613 3614 chunk = bit >> 5; 3615 piece = bit % (sizeof(uint32_t) * 8); 3616 3617 if ((mask[chunk] & (1 << piece)) != 0) 3618 return (-1); 3619 else 3620 mask[chunk] |= (1 << piece); 3621 3622 return (0); 3623} 3624 3625int 3626ctl_clear_mask(uint32_t *mask, uint32_t bit) 3627{ 3628 uint32_t chunk, piece; 3629 3630 chunk = bit >> 5; 3631 piece = bit % (sizeof(uint32_t) * 8); 3632 3633 if ((mask[chunk] & (1 << piece)) == 0) 3634 return (-1); 3635 else 3636 mask[chunk] &= ~(1 << piece); 3637 3638 return (0); 3639} 3640 3641int 3642ctl_is_set(uint32_t *mask, uint32_t bit) 3643{ 3644 uint32_t chunk, piece; 3645 3646 chunk = bit >> 5; 3647 piece = bit % (sizeof(uint32_t) * 8); 3648 3649 if ((mask[chunk] & (1 << piece)) == 0) 3650 return (0); 3651 else 3652 return (1); 3653} 3654 3655static uint64_t 3656ctl_get_prkey(struct ctl_lun *lun, uint32_t residx) 3657{ 3658 uint64_t *t; 3659 3660 t = lun->pr_keys[residx/CTL_MAX_INIT_PER_PORT]; 3661 if (t == NULL) 3662 return (0); 3663 return (t[residx % CTL_MAX_INIT_PER_PORT]); 3664} 3665 3666static void 3667ctl_clr_prkey(struct ctl_lun *lun, uint32_t residx) 3668{ 3669 uint64_t *t; 3670 3671 t = lun->pr_keys[residx/CTL_MAX_INIT_PER_PORT]; 3672 if (t == NULL) 3673 return; 3674 t[residx % CTL_MAX_INIT_PER_PORT] = 0; 3675} 3676 3677static void 3678ctl_alloc_prkey(struct ctl_lun *lun, uint32_t residx) 3679{ 3680 uint64_t *p; 3681 u_int i; 3682 3683 i = residx/CTL_MAX_INIT_PER_PORT; 3684 if (lun->pr_keys[i] != NULL) 3685 return; 3686 mtx_unlock(&lun->lun_lock); 3687 p = malloc(sizeof(uint64_t) * CTL_MAX_INIT_PER_PORT, M_CTL, 3688 M_WAITOK | M_ZERO); 3689 mtx_lock(&lun->lun_lock); 3690 if (lun->pr_keys[i] == NULL) 3691 lun->pr_keys[i] = p; 3692 else 3693 free(p, M_CTL); 3694} 3695 3696static void 3697ctl_set_prkey(struct ctl_lun *lun, uint32_t residx, uint64_t key) 3698{ 3699 uint64_t *t; 3700 3701 t = lun->pr_keys[residx/CTL_MAX_INIT_PER_PORT]; 3702 KASSERT(t != NULL, ("prkey %d is not allocated", residx)); 3703 t[residx % CTL_MAX_INIT_PER_PORT] = key; 3704} 3705 3706/* 3707 * ctl_softc, pool_name, total_ctl_io are passed in. 3708 * npool is passed out. 3709 */ 3710int 3711ctl_pool_create(struct ctl_softc *ctl_softc, const char *pool_name, 3712 uint32_t total_ctl_io, void **npool) 3713{ 3714#ifdef IO_POOLS 3715 struct ctl_io_pool *pool; 3716 3717 pool = (struct ctl_io_pool *)malloc(sizeof(*pool), M_CTL, 3718 M_NOWAIT | M_ZERO); 3719 if (pool == NULL) 3720 return (ENOMEM); 3721 3722 snprintf(pool->name, sizeof(pool->name), "CTL IO %s", pool_name); 3723 pool->ctl_softc = ctl_softc; 3724 pool->zone = uma_zsecond_create(pool->name, NULL, 3725 NULL, NULL, NULL, ctl_softc->io_zone); 3726 /* uma_prealloc(pool->zone, total_ctl_io); */ 3727 3728 *npool = pool; 3729#else 3730 *npool = ctl_softc->io_zone; 3731#endif 3732 return (0); 3733} 3734 3735void 3736ctl_pool_free(struct ctl_io_pool *pool) 3737{ 3738 3739 if (pool == NULL) 3740 return; 3741 3742#ifdef IO_POOLS 3743 uma_zdestroy(pool->zone); 3744 free(pool, M_CTL); 3745#endif 3746} 3747 3748union ctl_io * 3749ctl_alloc_io(void *pool_ref) 3750{ 3751 union ctl_io *io; 3752#ifdef IO_POOLS 3753 struct ctl_io_pool *pool = (struct ctl_io_pool *)pool_ref; 3754 3755 io = uma_zalloc(pool->zone, M_WAITOK); 3756#else 3757 io = uma_zalloc((uma_zone_t)pool_ref, M_WAITOK); 3758#endif 3759 if (io != NULL) 3760 io->io_hdr.pool = pool_ref; 3761 return (io); 3762} 3763 3764union ctl_io * 3765ctl_alloc_io_nowait(void *pool_ref) 3766{ 3767 union ctl_io *io; 3768#ifdef IO_POOLS 3769 struct ctl_io_pool *pool = (struct ctl_io_pool *)pool_ref; 3770 3771 io = uma_zalloc(pool->zone, M_NOWAIT); 3772#else 3773 io = uma_zalloc((uma_zone_t)pool_ref, M_NOWAIT); 3774#endif 3775 if (io != NULL) 3776 io->io_hdr.pool = pool_ref; 3777 return (io); 3778} 3779 3780void 3781ctl_free_io(union ctl_io *io) 3782{ 3783#ifdef IO_POOLS 3784 struct ctl_io_pool *pool; 3785#endif 3786 3787 if (io == NULL) 3788 return; 3789 3790#ifdef IO_POOLS 3791 pool = (struct ctl_io_pool *)io->io_hdr.pool; 3792 uma_zfree(pool->zone, io); 3793#else 3794 uma_zfree((uma_zone_t)io->io_hdr.pool, io); 3795#endif 3796} 3797 3798void 3799ctl_zero_io(union ctl_io *io) 3800{ 3801 void *pool_ref; 3802 3803 if (io == NULL) 3804 return; 3805 3806 /* 3807 * May need to preserve linked list pointers at some point too. 3808 */ 3809 pool_ref = io->io_hdr.pool; 3810 memset(io, 0, sizeof(*io)); 3811 io->io_hdr.pool = pool_ref; 3812} 3813 3814/* 3815 * This routine is currently used for internal copies of ctl_ios that need 3816 * to persist for some reason after we've already returned status to the 3817 * FETD. (Thus the flag set.) 3818 * 3819 * XXX XXX 3820 * Note that this makes a blind copy of all fields in the ctl_io, except 3821 * for the pool reference. This includes any memory that has been 3822 * allocated! That memory will no longer be valid after done has been 3823 * called, so this would be VERY DANGEROUS for command that actually does 3824 * any reads or writes. Right now (11/7/2005), this is only used for immediate 3825 * start and stop commands, which don't transfer any data, so this is not a 3826 * problem. If it is used for anything else, the caller would also need to 3827 * allocate data buffer space and this routine would need to be modified to 3828 * copy the data buffer(s) as well. 3829 */ 3830void 3831ctl_copy_io(union ctl_io *src, union ctl_io *dest) 3832{ 3833 void *pool_ref; 3834 3835 if ((src == NULL) 3836 || (dest == NULL)) 3837 return; 3838 3839 /* 3840 * May need to preserve linked list pointers at some point too. 3841 */ 3842 pool_ref = dest->io_hdr.pool; 3843 3844 memcpy(dest, src, MIN(sizeof(*src), sizeof(*dest))); 3845 3846 dest->io_hdr.pool = pool_ref; 3847 /* 3848 * We need to know that this is an internal copy, and doesn't need 3849 * to get passed back to the FETD that allocated it. 3850 */ 3851 dest->io_hdr.flags |= CTL_FLAG_INT_COPY; 3852} 3853 3854int 3855ctl_expand_number(const char *buf, uint64_t *num) 3856{ 3857 char *endptr; 3858 uint64_t number; 3859 unsigned shift; 3860 3861 number = strtoq(buf, &endptr, 0); 3862 3863 switch (tolower((unsigned char)*endptr)) { 3864 case 'e': 3865 shift = 60; 3866 break; 3867 case 'p': 3868 shift = 50; 3869 break; 3870 case 't': 3871 shift = 40; 3872 break; 3873 case 'g': 3874 shift = 30; 3875 break; 3876 case 'm': 3877 shift = 20; 3878 break; 3879 case 'k': 3880 shift = 10; 3881 break; 3882 case 'b': 3883 case '\0': /* No unit. */ 3884 *num = number; 3885 return (0); 3886 default: 3887 /* Unrecognized unit. */ 3888 return (-1); 3889 } 3890 3891 if ((number << shift) >> shift != number) { 3892 /* Overflow */ 3893 return (-1); 3894 } 3895 *num = number << shift; 3896 return (0); 3897} 3898 3899 3900/* 3901 * This routine could be used in the future to load default and/or saved 3902 * mode page parameters for a particuar lun. 3903 */ 3904static int 3905ctl_init_page_index(struct ctl_lun *lun) 3906{ 3907 int i; 3908 struct ctl_page_index *page_index; 3909 const char *value; 3910 uint64_t ival; 3911 3912 memcpy(&lun->mode_pages.index, page_index_template, 3913 sizeof(page_index_template)); 3914 3915 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 3916 3917 page_index = &lun->mode_pages.index[i]; 3918 /* 3919 * If this is a disk-only mode page, there's no point in 3920 * setting it up. For some pages, we have to have some 3921 * basic information about the disk in order to calculate the 3922 * mode page data. 3923 */ 3924 if ((lun->be_lun->lun_type != T_DIRECT) 3925 && (page_index->page_flags & CTL_PAGE_FLAG_DISK_ONLY)) 3926 continue; 3927 3928 switch (page_index->page_code & SMPH_PC_MASK) { 3929 case SMS_RW_ERROR_RECOVERY_PAGE: { 3930 if (page_index->subpage != SMS_SUBPAGE_PAGE_0) 3931 panic("subpage is incorrect!"); 3932 memcpy(&lun->mode_pages.rw_er_page[CTL_PAGE_CURRENT], 3933 &rw_er_page_default, 3934 sizeof(rw_er_page_default)); 3935 memcpy(&lun->mode_pages.rw_er_page[CTL_PAGE_CHANGEABLE], 3936 &rw_er_page_changeable, 3937 sizeof(rw_er_page_changeable)); 3938 memcpy(&lun->mode_pages.rw_er_page[CTL_PAGE_DEFAULT], 3939 &rw_er_page_default, 3940 sizeof(rw_er_page_default)); 3941 memcpy(&lun->mode_pages.rw_er_page[CTL_PAGE_SAVED], 3942 &rw_er_page_default, 3943 sizeof(rw_er_page_default)); 3944 page_index->page_data = 3945 (uint8_t *)lun->mode_pages.rw_er_page; 3946 break; 3947 } 3948 case SMS_FORMAT_DEVICE_PAGE: { 3949 struct scsi_format_page *format_page; 3950 3951 if (page_index->subpage != SMS_SUBPAGE_PAGE_0) 3952 panic("subpage is incorrect!"); 3953 3954 /* 3955 * Sectors per track are set above. Bytes per 3956 * sector need to be set here on a per-LUN basis. 3957 */ 3958 memcpy(&lun->mode_pages.format_page[CTL_PAGE_CURRENT], 3959 &format_page_default, 3960 sizeof(format_page_default)); 3961 memcpy(&lun->mode_pages.format_page[ 3962 CTL_PAGE_CHANGEABLE], &format_page_changeable, 3963 sizeof(format_page_changeable)); 3964 memcpy(&lun->mode_pages.format_page[CTL_PAGE_DEFAULT], 3965 &format_page_default, 3966 sizeof(format_page_default)); 3967 memcpy(&lun->mode_pages.format_page[CTL_PAGE_SAVED], 3968 &format_page_default, 3969 sizeof(format_page_default)); 3970 3971 format_page = &lun->mode_pages.format_page[ 3972 CTL_PAGE_CURRENT]; 3973 scsi_ulto2b(lun->be_lun->blocksize, 3974 format_page->bytes_per_sector); 3975 3976 format_page = &lun->mode_pages.format_page[ 3977 CTL_PAGE_DEFAULT]; 3978 scsi_ulto2b(lun->be_lun->blocksize, 3979 format_page->bytes_per_sector); 3980 3981 format_page = &lun->mode_pages.format_page[ 3982 CTL_PAGE_SAVED]; 3983 scsi_ulto2b(lun->be_lun->blocksize, 3984 format_page->bytes_per_sector); 3985 3986 page_index->page_data = 3987 (uint8_t *)lun->mode_pages.format_page; 3988 break; 3989 } 3990 case SMS_RIGID_DISK_PAGE: { 3991 struct scsi_rigid_disk_page *rigid_disk_page; 3992 uint32_t sectors_per_cylinder; 3993 uint64_t cylinders; 3994#ifndef __XSCALE__ 3995 int shift; 3996#endif /* !__XSCALE__ */ 3997 3998 if (page_index->subpage != SMS_SUBPAGE_PAGE_0) 3999 panic("invalid subpage value %d", 4000 page_index->subpage); 4001 4002 /* 4003 * Rotation rate and sectors per track are set 4004 * above. We calculate the cylinders here based on 4005 * capacity. Due to the number of heads and 4006 * sectors per track we're using, smaller arrays 4007 * may turn out to have 0 cylinders. Linux and 4008 * FreeBSD don't pay attention to these mode pages 4009 * to figure out capacity, but Solaris does. It 4010 * seems to deal with 0 cylinders just fine, and 4011 * works out a fake geometry based on the capacity. 4012 */ 4013 memcpy(&lun->mode_pages.rigid_disk_page[ 4014 CTL_PAGE_DEFAULT], &rigid_disk_page_default, 4015 sizeof(rigid_disk_page_default)); 4016 memcpy(&lun->mode_pages.rigid_disk_page[ 4017 CTL_PAGE_CHANGEABLE],&rigid_disk_page_changeable, 4018 sizeof(rigid_disk_page_changeable)); 4019 4020 sectors_per_cylinder = CTL_DEFAULT_SECTORS_PER_TRACK * 4021 CTL_DEFAULT_HEADS; 4022 4023 /* 4024 * The divide method here will be more accurate, 4025 * probably, but results in floating point being 4026 * used in the kernel on i386 (__udivdi3()). On the 4027 * XScale, though, __udivdi3() is implemented in 4028 * software. 4029 * 4030 * The shift method for cylinder calculation is 4031 * accurate if sectors_per_cylinder is a power of 4032 * 2. Otherwise it might be slightly off -- you 4033 * might have a bit of a truncation problem. 4034 */ 4035#ifdef __XSCALE__ 4036 cylinders = (lun->be_lun->maxlba + 1) / 4037 sectors_per_cylinder; 4038#else 4039 for (shift = 31; shift > 0; shift--) { 4040 if (sectors_per_cylinder & (1 << shift)) 4041 break; 4042 } 4043 cylinders = (lun->be_lun->maxlba + 1) >> shift; 4044#endif 4045 4046 /* 4047 * We've basically got 3 bytes, or 24 bits for the 4048 * cylinder size in the mode page. If we're over, 4049 * just round down to 2^24. 4050 */ 4051 if (cylinders > 0xffffff) 4052 cylinders = 0xffffff; 4053 4054 rigid_disk_page = &lun->mode_pages.rigid_disk_page[ 4055 CTL_PAGE_DEFAULT]; 4056 scsi_ulto3b(cylinders, rigid_disk_page->cylinders); 4057 4058 if ((value = ctl_get_opt(&lun->be_lun->options, 4059 "rpm")) != NULL) { 4060 scsi_ulto2b(strtol(value, NULL, 0), 4061 rigid_disk_page->rotation_rate); 4062 } 4063 4064 memcpy(&lun->mode_pages.rigid_disk_page[CTL_PAGE_CURRENT], 4065 &lun->mode_pages.rigid_disk_page[CTL_PAGE_DEFAULT], 4066 sizeof(rigid_disk_page_default)); 4067 memcpy(&lun->mode_pages.rigid_disk_page[CTL_PAGE_SAVED], 4068 &lun->mode_pages.rigid_disk_page[CTL_PAGE_DEFAULT], 4069 sizeof(rigid_disk_page_default)); 4070 4071 page_index->page_data = 4072 (uint8_t *)lun->mode_pages.rigid_disk_page; 4073 break; 4074 } 4075 case SMS_CACHING_PAGE: { 4076 struct scsi_caching_page *caching_page; 4077 4078 if (page_index->subpage != SMS_SUBPAGE_PAGE_0) 4079 panic("invalid subpage value %d", 4080 page_index->subpage); 4081 memcpy(&lun->mode_pages.caching_page[CTL_PAGE_DEFAULT], 4082 &caching_page_default, 4083 sizeof(caching_page_default)); 4084 memcpy(&lun->mode_pages.caching_page[ 4085 CTL_PAGE_CHANGEABLE], &caching_page_changeable, 4086 sizeof(caching_page_changeable)); 4087 memcpy(&lun->mode_pages.caching_page[CTL_PAGE_SAVED], 4088 &caching_page_default, 4089 sizeof(caching_page_default)); 4090 caching_page = &lun->mode_pages.caching_page[ 4091 CTL_PAGE_SAVED]; 4092 value = ctl_get_opt(&lun->be_lun->options, "writecache"); 4093 if (value != NULL && strcmp(value, "off") == 0) 4094 caching_page->flags1 &= ~SCP_WCE; 4095 value = ctl_get_opt(&lun->be_lun->options, "readcache"); 4096 if (value != NULL && strcmp(value, "off") == 0) 4097 caching_page->flags1 |= SCP_RCD; 4098 memcpy(&lun->mode_pages.caching_page[CTL_PAGE_CURRENT], 4099 &lun->mode_pages.caching_page[CTL_PAGE_SAVED], 4100 sizeof(caching_page_default)); 4101 page_index->page_data = 4102 (uint8_t *)lun->mode_pages.caching_page; 4103 break; 4104 } 4105 case SMS_CONTROL_MODE_PAGE: { 4106 switch (page_index->subpage) { 4107 case SMS_SUBPAGE_PAGE_0: { 4108 struct scsi_control_page *control_page; 4109 4110 memcpy(&lun->mode_pages.control_page[ 4111 CTL_PAGE_DEFAULT], 4112 &control_page_default, 4113 sizeof(control_page_default)); 4114 memcpy(&lun->mode_pages.control_page[ 4115 CTL_PAGE_CHANGEABLE], 4116 &control_page_changeable, 4117 sizeof(control_page_changeable)); 4118 memcpy(&lun->mode_pages.control_page[ 4119 CTL_PAGE_SAVED], 4120 &control_page_default, 4121 sizeof(control_page_default)); 4122 control_page = &lun->mode_pages.control_page[ 4123 CTL_PAGE_SAVED]; 4124 value = ctl_get_opt(&lun->be_lun->options, 4125 "reordering"); 4126 if (value != NULL && 4127 strcmp(value, "unrestricted") == 0) { 4128 control_page->queue_flags &= 4129 ~SCP_QUEUE_ALG_MASK; 4130 control_page->queue_flags |= 4131 SCP_QUEUE_ALG_UNRESTRICTED; 4132 } 4133 memcpy(&lun->mode_pages.control_page[ 4134 CTL_PAGE_CURRENT], 4135 &lun->mode_pages.control_page[ 4136 CTL_PAGE_SAVED], 4137 sizeof(control_page_default)); 4138 page_index->page_data = 4139 (uint8_t *)lun->mode_pages.control_page; 4140 break; 4141 } 4142 case 0x01: 4143 memcpy(&lun->mode_pages.control_ext_page[ 4144 CTL_PAGE_DEFAULT], 4145 &control_ext_page_default, 4146 sizeof(control_ext_page_default)); 4147 memcpy(&lun->mode_pages.control_ext_page[ 4148 CTL_PAGE_CHANGEABLE], 4149 &control_ext_page_changeable, 4150 sizeof(control_ext_page_changeable)); 4151 memcpy(&lun->mode_pages.control_ext_page[ 4152 CTL_PAGE_SAVED], 4153 &control_ext_page_default, 4154 sizeof(control_ext_page_default)); 4155 memcpy(&lun->mode_pages.control_ext_page[ 4156 CTL_PAGE_CURRENT], 4157 &lun->mode_pages.control_ext_page[ 4158 CTL_PAGE_SAVED], 4159 sizeof(control_ext_page_default)); 4160 page_index->page_data = 4161 (uint8_t *)lun->mode_pages.control_ext_page; 4162 break; 4163 } 4164 break; 4165 } 4166 case SMS_INFO_EXCEPTIONS_PAGE: { 4167 switch (page_index->subpage) { 4168 case SMS_SUBPAGE_PAGE_0: 4169 memcpy(&lun->mode_pages.ie_page[CTL_PAGE_CURRENT], 4170 &ie_page_default, 4171 sizeof(ie_page_default)); 4172 memcpy(&lun->mode_pages.ie_page[ 4173 CTL_PAGE_CHANGEABLE], &ie_page_changeable, 4174 sizeof(ie_page_changeable)); 4175 memcpy(&lun->mode_pages.ie_page[CTL_PAGE_DEFAULT], 4176 &ie_page_default, 4177 sizeof(ie_page_default)); 4178 memcpy(&lun->mode_pages.ie_page[CTL_PAGE_SAVED], 4179 &ie_page_default, 4180 sizeof(ie_page_default)); 4181 page_index->page_data = 4182 (uint8_t *)lun->mode_pages.ie_page; 4183 break; 4184 case 0x02: { 4185 struct ctl_logical_block_provisioning_page *page; 4186 4187 memcpy(&lun->mode_pages.lbp_page[CTL_PAGE_DEFAULT], 4188 &lbp_page_default, 4189 sizeof(lbp_page_default)); 4190 memcpy(&lun->mode_pages.lbp_page[ 4191 CTL_PAGE_CHANGEABLE], &lbp_page_changeable, 4192 sizeof(lbp_page_changeable)); 4193 memcpy(&lun->mode_pages.lbp_page[CTL_PAGE_SAVED], 4194 &lbp_page_default, 4195 sizeof(lbp_page_default)); 4196 page = &lun->mode_pages.lbp_page[CTL_PAGE_SAVED]; 4197 value = ctl_get_opt(&lun->be_lun->options, 4198 "avail-threshold"); 4199 if (value != NULL && 4200 ctl_expand_number(value, &ival) == 0) { 4201 page->descr[0].flags |= SLBPPD_ENABLED | 4202 SLBPPD_ARMING_DEC; 4203 if (lun->be_lun->blocksize) 4204 ival /= lun->be_lun->blocksize; 4205 else 4206 ival /= 512; 4207 scsi_ulto4b(ival >> CTL_LBP_EXPONENT, 4208 page->descr[0].count); 4209 } 4210 value = ctl_get_opt(&lun->be_lun->options, 4211 "used-threshold"); 4212 if (value != NULL && 4213 ctl_expand_number(value, &ival) == 0) { 4214 page->descr[1].flags |= SLBPPD_ENABLED | 4215 SLBPPD_ARMING_INC; 4216 if (lun->be_lun->blocksize) 4217 ival /= lun->be_lun->blocksize; 4218 else 4219 ival /= 512; 4220 scsi_ulto4b(ival >> CTL_LBP_EXPONENT, 4221 page->descr[1].count); 4222 } 4223 value = ctl_get_opt(&lun->be_lun->options, 4224 "pool-avail-threshold"); 4225 if (value != NULL && 4226 ctl_expand_number(value, &ival) == 0) { 4227 page->descr[2].flags |= SLBPPD_ENABLED | 4228 SLBPPD_ARMING_DEC; 4229 if (lun->be_lun->blocksize) 4230 ival /= lun->be_lun->blocksize; 4231 else 4232 ival /= 512; 4233 scsi_ulto4b(ival >> CTL_LBP_EXPONENT, 4234 page->descr[2].count); 4235 } 4236 value = ctl_get_opt(&lun->be_lun->options, 4237 "pool-used-threshold"); 4238 if (value != NULL && 4239 ctl_expand_number(value, &ival) == 0) { 4240 page->descr[3].flags |= SLBPPD_ENABLED | 4241 SLBPPD_ARMING_INC; 4242 if (lun->be_lun->blocksize) 4243 ival /= lun->be_lun->blocksize; 4244 else 4245 ival /= 512; 4246 scsi_ulto4b(ival >> CTL_LBP_EXPONENT, 4247 page->descr[3].count); 4248 } 4249 memcpy(&lun->mode_pages.lbp_page[CTL_PAGE_CURRENT], 4250 &lun->mode_pages.lbp_page[CTL_PAGE_SAVED], 4251 sizeof(lbp_page_default)); 4252 page_index->page_data = 4253 (uint8_t *)lun->mode_pages.lbp_page; 4254 }} 4255 break; 4256 } 4257 case SMS_VENDOR_SPECIFIC_PAGE:{ 4258 switch (page_index->subpage) { 4259 case DBGCNF_SUBPAGE_CODE: { 4260 struct copan_debugconf_subpage *current_page, 4261 *saved_page; 4262 4263 memcpy(&lun->mode_pages.debugconf_subpage[ 4264 CTL_PAGE_CURRENT], 4265 &debugconf_page_default, 4266 sizeof(debugconf_page_default)); 4267 memcpy(&lun->mode_pages.debugconf_subpage[ 4268 CTL_PAGE_CHANGEABLE], 4269 &debugconf_page_changeable, 4270 sizeof(debugconf_page_changeable)); 4271 memcpy(&lun->mode_pages.debugconf_subpage[ 4272 CTL_PAGE_DEFAULT], 4273 &debugconf_page_default, 4274 sizeof(debugconf_page_default)); 4275 memcpy(&lun->mode_pages.debugconf_subpage[ 4276 CTL_PAGE_SAVED], 4277 &debugconf_page_default, 4278 sizeof(debugconf_page_default)); 4279 page_index->page_data = 4280 (uint8_t *)lun->mode_pages.debugconf_subpage; 4281 4282 current_page = (struct copan_debugconf_subpage *) 4283 (page_index->page_data + 4284 (page_index->page_len * 4285 CTL_PAGE_CURRENT)); 4286 saved_page = (struct copan_debugconf_subpage *) 4287 (page_index->page_data + 4288 (page_index->page_len * 4289 CTL_PAGE_SAVED)); 4290 break; 4291 } 4292 default: 4293 panic("invalid subpage value %d", 4294 page_index->subpage); 4295 break; 4296 } 4297 break; 4298 } 4299 default: 4300 panic("invalid page value %d", 4301 page_index->page_code & SMPH_PC_MASK); 4302 break; 4303 } 4304 } 4305 4306 return (CTL_RETVAL_COMPLETE); 4307} 4308 4309static int 4310ctl_init_log_page_index(struct ctl_lun *lun) 4311{ 4312 struct ctl_page_index *page_index; 4313 int i, j, k, prev; 4314 4315 memcpy(&lun->log_pages.index, log_page_index_template, 4316 sizeof(log_page_index_template)); 4317 4318 prev = -1; 4319 for (i = 0, j = 0, k = 0; i < CTL_NUM_LOG_PAGES; i++) { 4320 4321 page_index = &lun->log_pages.index[i]; 4322 /* 4323 * If this is a disk-only mode page, there's no point in 4324 * setting it up. For some pages, we have to have some 4325 * basic information about the disk in order to calculate the 4326 * mode page data. 4327 */ 4328 if ((lun->be_lun->lun_type != T_DIRECT) 4329 && (page_index->page_flags & CTL_PAGE_FLAG_DISK_ONLY)) 4330 continue; 4331 4332 if (page_index->page_code == SLS_LOGICAL_BLOCK_PROVISIONING && 4333 lun->backend->lun_attr == NULL) 4334 continue; 4335 4336 if (page_index->page_code != prev) { 4337 lun->log_pages.pages_page[j] = page_index->page_code; 4338 prev = page_index->page_code; 4339 j++; 4340 } 4341 lun->log_pages.subpages_page[k*2] = page_index->page_code; 4342 lun->log_pages.subpages_page[k*2+1] = page_index->subpage; 4343 k++; 4344 } 4345 lun->log_pages.index[0].page_data = &lun->log_pages.pages_page[0]; 4346 lun->log_pages.index[0].page_len = j; 4347 lun->log_pages.index[1].page_data = &lun->log_pages.subpages_page[0]; 4348 lun->log_pages.index[1].page_len = k * 2; 4349 lun->log_pages.index[2].page_data = &lun->log_pages.lbp_page[0]; 4350 lun->log_pages.index[2].page_len = 12*CTL_NUM_LBP_PARAMS; 4351 lun->log_pages.index[3].page_data = (uint8_t *)&lun->log_pages.stat_page; 4352 lun->log_pages.index[3].page_len = sizeof(lun->log_pages.stat_page); 4353 4354 return (CTL_RETVAL_COMPLETE); 4355} 4356 4357static int 4358hex2bin(const char *str, uint8_t *buf, int buf_size) 4359{ 4360 int i; 4361 u_char c; 4362 4363 memset(buf, 0, buf_size); 4364 while (isspace(str[0])) 4365 str++; 4366 if (str[0] == '0' && (str[1] == 'x' || str[1] == 'X')) 4367 str += 2; 4368 buf_size *= 2; 4369 for (i = 0; str[i] != 0 && i < buf_size; i++) { 4370 c = str[i]; 4371 if (isdigit(c)) 4372 c -= '0'; 4373 else if (isalpha(c)) 4374 c -= isupper(c) ? 'A' - 10 : 'a' - 10; 4375 else 4376 break; 4377 if (c >= 16) 4378 break; 4379 if ((i & 1) == 0) 4380 buf[i / 2] |= (c << 4); 4381 else 4382 buf[i / 2] |= c; 4383 } 4384 return ((i + 1) / 2); 4385} 4386 4387/* 4388 * LUN allocation. 4389 * 4390 * Requirements: 4391 * - caller allocates and zeros LUN storage, or passes in a NULL LUN if he 4392 * wants us to allocate the LUN and he can block. 4393 * - ctl_softc is always set 4394 * - be_lun is set if the LUN has a backend (needed for disk LUNs) 4395 * 4396 * Returns 0 for success, non-zero (errno) for failure. 4397 */ 4398static int 4399ctl_alloc_lun(struct ctl_softc *ctl_softc, struct ctl_lun *ctl_lun, 4400 struct ctl_be_lun *const be_lun) 4401{ 4402 struct ctl_lun *nlun, *lun; 4403 struct scsi_vpd_id_descriptor *desc; 4404 struct scsi_vpd_id_t10 *t10id; 4405 const char *eui, *naa, *scsiname, *vendor; 4406 int lun_number, i, lun_malloced; 4407 int devidlen, idlen1, idlen2 = 0, len; 4408 4409 if (be_lun == NULL) 4410 return (EINVAL); 4411 4412 /* 4413 * We currently only support Direct Access or Processor LUN types. 4414 */ 4415 switch (be_lun->lun_type) { 4416 case T_DIRECT: 4417 break; 4418 case T_PROCESSOR: 4419 break; 4420 case T_SEQUENTIAL: 4421 case T_CHANGER: 4422 default: 4423 be_lun->lun_config_status(be_lun->be_lun, 4424 CTL_LUN_CONFIG_FAILURE); 4425 break; 4426 } 4427 if (ctl_lun == NULL) { 4428 lun = malloc(sizeof(*lun), M_CTL, M_WAITOK); 4429 lun_malloced = 1; 4430 } else { 4431 lun_malloced = 0; 4432 lun = ctl_lun; 4433 } 4434 4435 memset(lun, 0, sizeof(*lun)); 4436 if (lun_malloced) 4437 lun->flags = CTL_LUN_MALLOCED; 4438 4439 /* Generate LUN ID. */ 4440 devidlen = max(CTL_DEVID_MIN_LEN, 4441 strnlen(be_lun->device_id, CTL_DEVID_LEN)); 4442 idlen1 = sizeof(*t10id) + devidlen; 4443 len = sizeof(struct scsi_vpd_id_descriptor) + idlen1; 4444 scsiname = ctl_get_opt(&be_lun->options, "scsiname"); 4445 if (scsiname != NULL) { 4446 idlen2 = roundup2(strlen(scsiname) + 1, 4); 4447 len += sizeof(struct scsi_vpd_id_descriptor) + idlen2; 4448 } 4449 eui = ctl_get_opt(&be_lun->options, "eui"); 4450 if (eui != NULL) { 4451 len += sizeof(struct scsi_vpd_id_descriptor) + 16; 4452 } 4453 naa = ctl_get_opt(&be_lun->options, "naa"); 4454 if (naa != NULL) { 4455 len += sizeof(struct scsi_vpd_id_descriptor) + 16; 4456 } 4457 lun->lun_devid = malloc(sizeof(struct ctl_devid) + len, 4458 M_CTL, M_WAITOK | M_ZERO); 4459 desc = (struct scsi_vpd_id_descriptor *)lun->lun_devid->data; 4460 desc->proto_codeset = SVPD_ID_CODESET_ASCII; 4461 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | SVPD_ID_TYPE_T10; 4462 desc->length = idlen1; 4463 t10id = (struct scsi_vpd_id_t10 *)&desc->identifier[0]; 4464 memset(t10id->vendor, ' ', sizeof(t10id->vendor)); 4465 if ((vendor = ctl_get_opt(&be_lun->options, "vendor")) == NULL) { 4466 strncpy((char *)t10id->vendor, CTL_VENDOR, sizeof(t10id->vendor)); 4467 } else { 4468 strncpy(t10id->vendor, vendor, 4469 min(sizeof(t10id->vendor), strlen(vendor))); 4470 } 4471 strncpy((char *)t10id->vendor_spec_id, 4472 (char *)be_lun->device_id, devidlen); 4473 if (scsiname != NULL) { 4474 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 4475 desc->length); 4476 desc->proto_codeset = SVPD_ID_CODESET_UTF8; 4477 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | 4478 SVPD_ID_TYPE_SCSI_NAME; 4479 desc->length = idlen2; 4480 strlcpy(desc->identifier, scsiname, idlen2); 4481 } 4482 if (eui != NULL) { 4483 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 4484 desc->length); 4485 desc->proto_codeset = SVPD_ID_CODESET_BINARY; 4486 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | 4487 SVPD_ID_TYPE_EUI64; 4488 desc->length = hex2bin(eui, desc->identifier, 16); 4489 desc->length = desc->length > 12 ? 16 : 4490 (desc->length > 8 ? 12 : 8); 4491 len -= 16 - desc->length; 4492 } 4493 if (naa != NULL) { 4494 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 4495 desc->length); 4496 desc->proto_codeset = SVPD_ID_CODESET_BINARY; 4497 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | 4498 SVPD_ID_TYPE_NAA; 4499 desc->length = hex2bin(naa, desc->identifier, 16); 4500 desc->length = desc->length > 8 ? 16 : 8; 4501 len -= 16 - desc->length; 4502 } 4503 lun->lun_devid->len = len; 4504 4505 mtx_lock(&ctl_softc->ctl_lock); 4506 /* 4507 * See if the caller requested a particular LUN number. If so, see 4508 * if it is available. Otherwise, allocate the first available LUN. 4509 */ 4510 if (be_lun->flags & CTL_LUN_FLAG_ID_REQ) { 4511 if ((be_lun->req_lun_id > (CTL_MAX_LUNS - 1)) 4512 || (ctl_is_set(ctl_softc->ctl_lun_mask, be_lun->req_lun_id))) { 4513 mtx_unlock(&ctl_softc->ctl_lock); 4514 if (be_lun->req_lun_id > (CTL_MAX_LUNS - 1)) { 4515 printf("ctl: requested LUN ID %d is higher " 4516 "than CTL_MAX_LUNS - 1 (%d)\n", 4517 be_lun->req_lun_id, CTL_MAX_LUNS - 1); 4518 } else { 4519 /* 4520 * XXX KDM return an error, or just assign 4521 * another LUN ID in this case?? 4522 */ 4523 printf("ctl: requested LUN ID %d is already " 4524 "in use\n", be_lun->req_lun_id); 4525 } 4526 if (lun->flags & CTL_LUN_MALLOCED) 4527 free(lun, M_CTL); 4528 be_lun->lun_config_status(be_lun->be_lun, 4529 CTL_LUN_CONFIG_FAILURE); 4530 return (ENOSPC); 4531 } 4532 lun_number = be_lun->req_lun_id; 4533 } else { 4534 lun_number = ctl_ffz(ctl_softc->ctl_lun_mask, 0, CTL_MAX_LUNS); 4535 if (lun_number == -1) { 4536 mtx_unlock(&ctl_softc->ctl_lock); 4537 printf("ctl: can't allocate LUN, out of LUNs\n"); 4538 if (lun->flags & CTL_LUN_MALLOCED) 4539 free(lun, M_CTL); 4540 be_lun->lun_config_status(be_lun->be_lun, 4541 CTL_LUN_CONFIG_FAILURE); 4542 return (ENOSPC); 4543 } 4544 } 4545 ctl_set_mask(ctl_softc->ctl_lun_mask, lun_number); 4546 4547 mtx_init(&lun->lun_lock, "CTL LUN", NULL, MTX_DEF); 4548 lun->lun = lun_number; 4549 lun->be_lun = be_lun; 4550 /* 4551 * The processor LUN is always enabled. Disk LUNs come on line 4552 * disabled, and must be enabled by the backend. 4553 */ 4554 lun->flags |= CTL_LUN_DISABLED; 4555 lun->backend = be_lun->be; 4556 be_lun->ctl_lun = lun; 4557 be_lun->lun_id = lun_number; 4558 atomic_add_int(&be_lun->be->num_luns, 1); 4559 if (be_lun->flags & CTL_LUN_FLAG_OFFLINE) 4560 lun->flags |= CTL_LUN_OFFLINE; 4561 4562 if (be_lun->flags & CTL_LUN_FLAG_POWERED_OFF) 4563 lun->flags |= CTL_LUN_STOPPED; 4564 4565 if (be_lun->flags & CTL_LUN_FLAG_INOPERABLE) 4566 lun->flags |= CTL_LUN_INOPERABLE; 4567 4568 if (be_lun->flags & CTL_LUN_FLAG_PRIMARY) 4569 lun->flags |= CTL_LUN_PRIMARY_SC; 4570 4571 lun->ctl_softc = ctl_softc; 4572#ifdef CTL_TIME_IO 4573 lun->last_busy = getsbinuptime(); 4574#endif 4575 TAILQ_INIT(&lun->ooa_queue); 4576 TAILQ_INIT(&lun->blocked_queue); 4577 STAILQ_INIT(&lun->error_list); 4578 ctl_tpc_lun_init(lun); 4579 4580 /* 4581 * Initialize the mode and log page index. 4582 */ 4583 ctl_init_page_index(lun); 4584 ctl_init_log_page_index(lun); 4585 4586 /* 4587 * Now, before we insert this lun on the lun list, set the lun 4588 * inventory changed UA for all other luns. 4589 */ 4590 STAILQ_FOREACH(nlun, &ctl_softc->lun_list, links) { 4591 mtx_lock(&nlun->lun_lock); 4592 ctl_est_ua_all(nlun, -1, CTL_UA_LUN_CHANGE); 4593 mtx_unlock(&nlun->lun_lock); 4594 } 4595 4596 STAILQ_INSERT_TAIL(&ctl_softc->lun_list, lun, links); 4597 4598 ctl_softc->ctl_luns[lun_number] = lun; 4599 4600 ctl_softc->num_luns++; 4601 4602 /* Setup statistics gathering */ 4603 lun->stats.device_type = be_lun->lun_type; 4604 lun->stats.lun_number = lun_number; 4605 if (lun->stats.device_type == T_DIRECT) 4606 lun->stats.blocksize = be_lun->blocksize; 4607 else 4608 lun->stats.flags = CTL_LUN_STATS_NO_BLOCKSIZE; 4609 for (i = 0;i < CTL_MAX_PORTS;i++) 4610 lun->stats.ports[i].targ_port = i; 4611 4612 mtx_unlock(&ctl_softc->ctl_lock); 4613 4614 lun->be_lun->lun_config_status(lun->be_lun->be_lun, CTL_LUN_CONFIG_OK); 4615 return (0); 4616} 4617 4618/* 4619 * Delete a LUN. 4620 * Assumptions: 4621 * - LUN has already been marked invalid and any pending I/O has been taken 4622 * care of. 4623 */ 4624static int 4625ctl_free_lun(struct ctl_lun *lun) 4626{ 4627 struct ctl_softc *softc; 4628 struct ctl_lun *nlun; 4629 int i; 4630 4631 softc = lun->ctl_softc; 4632 4633 mtx_assert(&softc->ctl_lock, MA_OWNED); 4634 4635 STAILQ_REMOVE(&softc->lun_list, lun, ctl_lun, links); 4636 4637 ctl_clear_mask(softc->ctl_lun_mask, lun->lun); 4638 4639 softc->ctl_luns[lun->lun] = NULL; 4640 4641 if (!TAILQ_EMPTY(&lun->ooa_queue)) 4642 panic("Freeing a LUN %p with outstanding I/O!!\n", lun); 4643 4644 softc->num_luns--; 4645 4646 /* 4647 * Tell the backend to free resources, if this LUN has a backend. 4648 */ 4649 atomic_subtract_int(&lun->be_lun->be->num_luns, 1); 4650 lun->be_lun->lun_shutdown(lun->be_lun->be_lun); 4651 4652 ctl_tpc_lun_shutdown(lun); 4653 mtx_destroy(&lun->lun_lock); 4654 free(lun->lun_devid, M_CTL); 4655 for (i = 0; i < CTL_MAX_PORTS; i++) 4656 free(lun->pending_ua[i], M_CTL); 4657 for (i = 0; i < CTL_MAX_PORTS; i++) 4658 free(lun->pr_keys[i], M_CTL); 4659 free(lun->write_buffer, M_CTL); 4660 if (lun->flags & CTL_LUN_MALLOCED) 4661 free(lun, M_CTL); 4662 4663 STAILQ_FOREACH(nlun, &softc->lun_list, links) { 4664 mtx_lock(&nlun->lun_lock); 4665 ctl_est_ua_all(nlun, -1, CTL_UA_LUN_CHANGE); 4666 mtx_unlock(&nlun->lun_lock); 4667 } 4668 4669 return (0); 4670} 4671 4672static void 4673ctl_create_lun(struct ctl_be_lun *be_lun) 4674{ 4675 struct ctl_softc *softc; 4676 4677 softc = control_softc; 4678 4679 /* 4680 * ctl_alloc_lun() should handle all potential failure cases. 4681 */ 4682 ctl_alloc_lun(softc, NULL, be_lun); 4683} 4684 4685int 4686ctl_add_lun(struct ctl_be_lun *be_lun) 4687{ 4688 struct ctl_softc *softc = control_softc; 4689 4690 mtx_lock(&softc->ctl_lock); 4691 STAILQ_INSERT_TAIL(&softc->pending_lun_queue, be_lun, links); 4692 mtx_unlock(&softc->ctl_lock); 4693 wakeup(&softc->pending_lun_queue); 4694 4695 return (0); 4696} 4697 4698int 4699ctl_enable_lun(struct ctl_be_lun *be_lun) 4700{ 4701 struct ctl_softc *softc; 4702 struct ctl_port *port, *nport; 4703 struct ctl_lun *lun; 4704 int retval; 4705 4706 lun = (struct ctl_lun *)be_lun->ctl_lun; 4707 softc = lun->ctl_softc; 4708 4709 mtx_lock(&softc->ctl_lock); 4710 mtx_lock(&lun->lun_lock); 4711 if ((lun->flags & CTL_LUN_DISABLED) == 0) { 4712 /* 4713 * eh? Why did we get called if the LUN is already 4714 * enabled? 4715 */ 4716 mtx_unlock(&lun->lun_lock); 4717 mtx_unlock(&softc->ctl_lock); 4718 return (0); 4719 } 4720 lun->flags &= ~CTL_LUN_DISABLED; 4721 mtx_unlock(&lun->lun_lock); 4722 4723 for (port = STAILQ_FIRST(&softc->port_list); port != NULL; port = nport) { 4724 nport = STAILQ_NEXT(port, links); 4725 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0 || 4726 port->lun_map != NULL || port->lun_enable == NULL) 4727 continue; 4728 4729 /* 4730 * Drop the lock while we call the FETD's enable routine. 4731 * This can lead to a callback into CTL (at least in the 4732 * case of the internal initiator frontend. 4733 */ 4734 mtx_unlock(&softc->ctl_lock); 4735 retval = port->lun_enable(port->targ_lun_arg, lun->lun); 4736 mtx_lock(&softc->ctl_lock); 4737 if (retval != 0) { 4738 printf("%s: FETD %s port %d returned error " 4739 "%d for lun_enable on lun %jd\n", 4740 __func__, port->port_name, port->targ_port, 4741 retval, (intmax_t)lun->lun); 4742 } 4743 } 4744 4745 mtx_unlock(&softc->ctl_lock); 4746 ctl_isc_announce_lun(lun); 4747 4748 return (0); 4749} 4750 4751int 4752ctl_disable_lun(struct ctl_be_lun *be_lun) 4753{ 4754 struct ctl_softc *softc; 4755 struct ctl_port *port; 4756 struct ctl_lun *lun; 4757 int retval; 4758 4759 lun = (struct ctl_lun *)be_lun->ctl_lun; 4760 softc = lun->ctl_softc; 4761 4762 mtx_lock(&softc->ctl_lock); 4763 mtx_lock(&lun->lun_lock); 4764 if (lun->flags & CTL_LUN_DISABLED) { 4765 mtx_unlock(&lun->lun_lock); 4766 mtx_unlock(&softc->ctl_lock); 4767 return (0); 4768 } 4769 lun->flags |= CTL_LUN_DISABLED; 4770 mtx_unlock(&lun->lun_lock); 4771 4772 STAILQ_FOREACH(port, &softc->port_list, links) { 4773 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0 || 4774 port->lun_map != NULL || port->lun_disable == NULL) 4775 continue; 4776 4777 /* 4778 * Drop the lock before we call the frontend's disable 4779 * routine, to avoid lock order reversals. 4780 * 4781 * XXX KDM what happens if the frontend list changes while 4782 * we're traversing it? It's unlikely, but should be handled. 4783 */ 4784 mtx_unlock(&softc->ctl_lock); 4785 retval = port->lun_disable(port->targ_lun_arg, lun->lun); 4786 mtx_lock(&softc->ctl_lock); 4787 if (retval != 0) { 4788 printf("%s: FETD %s port %d returned error " 4789 "%d for lun_disable on lun %jd\n", 4790 __func__, port->port_name, port->targ_port, 4791 retval, (intmax_t)lun->lun); 4792 } 4793 } 4794 4795 mtx_unlock(&softc->ctl_lock); 4796 ctl_isc_announce_lun(lun); 4797 4798 return (0); 4799} 4800 4801int 4802ctl_start_lun(struct ctl_be_lun *be_lun) 4803{ 4804 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 4805 4806 mtx_lock(&lun->lun_lock); 4807 lun->flags &= ~CTL_LUN_STOPPED; 4808 mtx_unlock(&lun->lun_lock); 4809 return (0); 4810} 4811 4812int 4813ctl_stop_lun(struct ctl_be_lun *be_lun) 4814{ 4815 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 4816 4817 mtx_lock(&lun->lun_lock); 4818 lun->flags |= CTL_LUN_STOPPED; 4819 mtx_unlock(&lun->lun_lock); 4820 return (0); 4821} 4822 4823int 4824ctl_lun_offline(struct ctl_be_lun *be_lun) 4825{ 4826 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 4827 4828 mtx_lock(&lun->lun_lock); 4829 lun->flags |= CTL_LUN_OFFLINE; 4830 mtx_unlock(&lun->lun_lock); 4831 return (0); 4832} 4833 4834int 4835ctl_lun_online(struct ctl_be_lun *be_lun) 4836{ 4837 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 4838 4839 mtx_lock(&lun->lun_lock); 4840 lun->flags &= ~CTL_LUN_OFFLINE; 4841 mtx_unlock(&lun->lun_lock); 4842 return (0); 4843} 4844 4845int 4846ctl_lun_primary(struct ctl_be_lun *be_lun) 4847{ 4848 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 4849 4850 mtx_lock(&lun->lun_lock); 4851 lun->flags |= CTL_LUN_PRIMARY_SC; 4852 ctl_est_ua_all(lun, -1, CTL_UA_ASYM_ACC_CHANGE); 4853 mtx_unlock(&lun->lun_lock); 4854 ctl_isc_announce_lun(lun); 4855 return (0); 4856} 4857 4858int 4859ctl_lun_secondary(struct ctl_be_lun *be_lun) 4860{ 4861 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 4862 4863 mtx_lock(&lun->lun_lock); 4864 lun->flags &= ~CTL_LUN_PRIMARY_SC; 4865 ctl_est_ua_all(lun, -1, CTL_UA_ASYM_ACC_CHANGE); 4866 mtx_unlock(&lun->lun_lock); 4867 ctl_isc_announce_lun(lun); 4868 return (0); 4869} 4870 4871int 4872ctl_invalidate_lun(struct ctl_be_lun *be_lun) 4873{ 4874 struct ctl_softc *softc; 4875 struct ctl_lun *lun; 4876 4877 lun = (struct ctl_lun *)be_lun->ctl_lun; 4878 softc = lun->ctl_softc; 4879 4880 mtx_lock(&lun->lun_lock); 4881 4882 /* 4883 * The LUN needs to be disabled before it can be marked invalid. 4884 */ 4885 if ((lun->flags & CTL_LUN_DISABLED) == 0) { 4886 mtx_unlock(&lun->lun_lock); 4887 return (-1); 4888 } 4889 /* 4890 * Mark the LUN invalid. 4891 */ 4892 lun->flags |= CTL_LUN_INVALID; 4893 4894 /* 4895 * If there is nothing in the OOA queue, go ahead and free the LUN. 4896 * If we have something in the OOA queue, we'll free it when the 4897 * last I/O completes. 4898 */ 4899 if (TAILQ_EMPTY(&lun->ooa_queue)) { 4900 mtx_unlock(&lun->lun_lock); 4901 mtx_lock(&softc->ctl_lock); 4902 ctl_free_lun(lun); 4903 mtx_unlock(&softc->ctl_lock); 4904 } else 4905 mtx_unlock(&lun->lun_lock); 4906 4907 return (0); 4908} 4909 4910int 4911ctl_lun_inoperable(struct ctl_be_lun *be_lun) 4912{ 4913 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 4914 4915 mtx_lock(&lun->lun_lock); 4916 lun->flags |= CTL_LUN_INOPERABLE; 4917 mtx_unlock(&lun->lun_lock); 4918 return (0); 4919} 4920 4921int 4922ctl_lun_operable(struct ctl_be_lun *be_lun) 4923{ 4924 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 4925 4926 mtx_lock(&lun->lun_lock); 4927 lun->flags &= ~CTL_LUN_INOPERABLE; 4928 mtx_unlock(&lun->lun_lock); 4929 return (0); 4930} 4931 4932void 4933ctl_lun_capacity_changed(struct ctl_be_lun *be_lun) 4934{ 4935 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 4936 union ctl_ha_msg msg; 4937 4938 mtx_lock(&lun->lun_lock); 4939 ctl_est_ua_all(lun, -1, CTL_UA_CAPACITY_CHANGED); 4940 mtx_unlock(&lun->lun_lock); 4941 if (lun->ctl_softc->ha_mode == CTL_HA_MODE_XFER) { 4942 /* Send msg to other side. */ 4943 bzero(&msg.ua, sizeof(msg.ua)); 4944 msg.hdr.msg_type = CTL_MSG_UA; 4945 msg.hdr.nexus.initid = -1; 4946 msg.hdr.nexus.targ_port = -1; 4947 msg.hdr.nexus.targ_lun = lun->lun; 4948 msg.hdr.nexus.targ_mapped_lun = lun->lun; 4949 msg.ua.ua_all = 1; 4950 msg.ua.ua_set = 1; 4951 msg.ua.ua_type = CTL_UA_CAPACITY_CHANGED; 4952 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, sizeof(msg.ua), 4953 M_WAITOK); 4954 } 4955} 4956 4957/* 4958 * Backend "memory move is complete" callback for requests that never 4959 * make it down to say RAIDCore's configuration code. 4960 */ 4961int 4962ctl_config_move_done(union ctl_io *io) 4963{ 4964 int retval; 4965 4966 CTL_DEBUG_PRINT(("ctl_config_move_done\n")); 4967 KASSERT(io->io_hdr.io_type == CTL_IO_SCSI, 4968 ("Config I/O type isn't CTL_IO_SCSI (%d)!", io->io_hdr.io_type)); 4969 4970 if ((io->io_hdr.port_status != 0) && 4971 ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE || 4972 (io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS)) { 4973 /* 4974 * For hardware error sense keys, the sense key 4975 * specific value is defined to be a retry count, 4976 * but we use it to pass back an internal FETD 4977 * error code. XXX KDM Hopefully the FETD is only 4978 * using 16 bits for an error code, since that's 4979 * all the space we have in the sks field. 4980 */ 4981 ctl_set_internal_failure(&io->scsiio, 4982 /*sks_valid*/ 1, 4983 /*retry_count*/ 4984 io->io_hdr.port_status); 4985 } 4986 4987 if (ctl_debug & CTL_DEBUG_CDB_DATA) 4988 ctl_data_print(io); 4989 if (((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_IN) || 4990 ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE && 4991 (io->io_hdr.status & CTL_STATUS_MASK) != CTL_SUCCESS) || 4992 ((io->io_hdr.flags & CTL_FLAG_ABORT) != 0)) { 4993 /* 4994 * XXX KDM just assuming a single pointer here, and not a 4995 * S/G list. If we start using S/G lists for config data, 4996 * we'll need to know how to clean them up here as well. 4997 */ 4998 if (io->io_hdr.flags & CTL_FLAG_ALLOCATED) 4999 free(io->scsiio.kern_data_ptr, M_CTL); 5000 ctl_done(io); 5001 retval = CTL_RETVAL_COMPLETE; 5002 } else { 5003 /* 5004 * XXX KDM now we need to continue data movement. Some 5005 * options: 5006 * - call ctl_scsiio() again? We don't do this for data 5007 * writes, because for those at least we know ahead of 5008 * time where the write will go and how long it is. For 5009 * config writes, though, that information is largely 5010 * contained within the write itself, thus we need to 5011 * parse out the data again. 5012 * 5013 * - Call some other function once the data is in? 5014 */ 5015 5016 /* 5017 * XXX KDM call ctl_scsiio() again for now, and check flag 5018 * bits to see whether we're allocated or not. 5019 */ 5020 retval = ctl_scsiio(&io->scsiio); 5021 } 5022 return (retval); 5023} 5024 5025/* 5026 * This gets called by a backend driver when it is done with a 5027 * data_submit method. 5028 */ 5029void 5030ctl_data_submit_done(union ctl_io *io) 5031{ 5032 /* 5033 * If the IO_CONT flag is set, we need to call the supplied 5034 * function to continue processing the I/O, instead of completing 5035 * the I/O just yet. 5036 * 5037 * If there is an error, though, we don't want to keep processing. 5038 * Instead, just send status back to the initiator. 5039 */ 5040 if ((io->io_hdr.flags & CTL_FLAG_IO_CONT) && 5041 (io->io_hdr.flags & CTL_FLAG_ABORT) == 0 && 5042 ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE || 5043 (io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS)) { 5044 io->scsiio.io_cont(io); 5045 return; 5046 } 5047 ctl_done(io); 5048} 5049 5050/* 5051 * This gets called by a backend driver when it is done with a 5052 * configuration write. 5053 */ 5054void 5055ctl_config_write_done(union ctl_io *io) 5056{ 5057 uint8_t *buf; 5058 5059 /* 5060 * If the IO_CONT flag is set, we need to call the supplied 5061 * function to continue processing the I/O, instead of completing 5062 * the I/O just yet. 5063 * 5064 * If there is an error, though, we don't want to keep processing. 5065 * Instead, just send status back to the initiator. 5066 */ 5067 if ((io->io_hdr.flags & CTL_FLAG_IO_CONT) && 5068 (io->io_hdr.flags & CTL_FLAG_ABORT) == 0 && 5069 ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE || 5070 (io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS)) { 5071 io->scsiio.io_cont(io); 5072 return; 5073 } 5074 /* 5075 * Since a configuration write can be done for commands that actually 5076 * have data allocated, like write buffer, and commands that have 5077 * no data, like start/stop unit, we need to check here. 5078 */ 5079 if (io->io_hdr.flags & CTL_FLAG_ALLOCATED) 5080 buf = io->scsiio.kern_data_ptr; 5081 else 5082 buf = NULL; 5083 ctl_done(io); 5084 if (buf) 5085 free(buf, M_CTL); 5086} 5087 5088void 5089ctl_config_read_done(union ctl_io *io) 5090{ 5091 uint8_t *buf; 5092 5093 /* 5094 * If there is some error -- we are done, skip data transfer. 5095 */ 5096 if ((io->io_hdr.flags & CTL_FLAG_ABORT) != 0 || 5097 ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE && 5098 (io->io_hdr.status & CTL_STATUS_MASK) != CTL_SUCCESS)) { 5099 if (io->io_hdr.flags & CTL_FLAG_ALLOCATED) 5100 buf = io->scsiio.kern_data_ptr; 5101 else 5102 buf = NULL; 5103 ctl_done(io); 5104 if (buf) 5105 free(buf, M_CTL); 5106 return; 5107 } 5108 5109 /* 5110 * If the IO_CONT flag is set, we need to call the supplied 5111 * function to continue processing the I/O, instead of completing 5112 * the I/O just yet. 5113 */ 5114 if (io->io_hdr.flags & CTL_FLAG_IO_CONT) { 5115 io->scsiio.io_cont(io); 5116 return; 5117 } 5118 5119 ctl_datamove(io); 5120} 5121 5122/* 5123 * SCSI release command. 5124 */ 5125int 5126ctl_scsi_release(struct ctl_scsiio *ctsio) 5127{ 5128 int length, longid, thirdparty_id, resv_id; 5129 struct ctl_lun *lun; 5130 uint32_t residx; 5131 5132 length = 0; 5133 resv_id = 0; 5134 5135 CTL_DEBUG_PRINT(("ctl_scsi_release\n")); 5136 5137 residx = ctl_get_initindex(&ctsio->io_hdr.nexus); 5138 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5139 5140 switch (ctsio->cdb[0]) { 5141 case RELEASE_10: { 5142 struct scsi_release_10 *cdb; 5143 5144 cdb = (struct scsi_release_10 *)ctsio->cdb; 5145 5146 if (cdb->byte2 & SR10_LONGID) 5147 longid = 1; 5148 else 5149 thirdparty_id = cdb->thirdparty_id; 5150 5151 resv_id = cdb->resv_id; 5152 length = scsi_2btoul(cdb->length); 5153 break; 5154 } 5155 } 5156 5157 5158 /* 5159 * XXX KDM right now, we only support LUN reservation. We don't 5160 * support 3rd party reservations, or extent reservations, which 5161 * might actually need the parameter list. If we've gotten this 5162 * far, we've got a LUN reservation. Anything else got kicked out 5163 * above. So, according to SPC, ignore the length. 5164 */ 5165 length = 0; 5166 5167 if (((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) 5168 && (length > 0)) { 5169 ctsio->kern_data_ptr = malloc(length, M_CTL, M_WAITOK); 5170 ctsio->kern_data_len = length; 5171 ctsio->kern_total_len = length; 5172 ctsio->kern_data_resid = 0; 5173 ctsio->kern_rel_offset = 0; 5174 ctsio->kern_sg_entries = 0; 5175 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5176 ctsio->be_move_done = ctl_config_move_done; 5177 ctl_datamove((union ctl_io *)ctsio); 5178 5179 return (CTL_RETVAL_COMPLETE); 5180 } 5181 5182 if (length > 0) 5183 thirdparty_id = scsi_8btou64(ctsio->kern_data_ptr); 5184 5185 mtx_lock(&lun->lun_lock); 5186 5187 /* 5188 * According to SPC, it is not an error for an intiator to attempt 5189 * to release a reservation on a LUN that isn't reserved, or that 5190 * is reserved by another initiator. The reservation can only be 5191 * released, though, by the initiator who made it or by one of 5192 * several reset type events. 5193 */ 5194 if ((lun->flags & CTL_LUN_RESERVED) && (lun->res_idx == residx)) 5195 lun->flags &= ~CTL_LUN_RESERVED; 5196 5197 mtx_unlock(&lun->lun_lock); 5198 5199 if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) { 5200 free(ctsio->kern_data_ptr, M_CTL); 5201 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED; 5202 } 5203 5204 ctl_set_success(ctsio); 5205 ctl_done((union ctl_io *)ctsio); 5206 return (CTL_RETVAL_COMPLETE); 5207} 5208 5209int 5210ctl_scsi_reserve(struct ctl_scsiio *ctsio) 5211{ 5212 int extent, thirdparty, longid; 5213 int resv_id, length; 5214 uint64_t thirdparty_id; 5215 struct ctl_lun *lun; 5216 uint32_t residx; 5217 5218 extent = 0; 5219 thirdparty = 0; 5220 longid = 0; 5221 resv_id = 0; 5222 length = 0; 5223 thirdparty_id = 0; 5224 5225 CTL_DEBUG_PRINT(("ctl_reserve\n")); 5226 5227 residx = ctl_get_initindex(&ctsio->io_hdr.nexus); 5228 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5229 5230 switch (ctsio->cdb[0]) { 5231 case RESERVE_10: { 5232 struct scsi_reserve_10 *cdb; 5233 5234 cdb = (struct scsi_reserve_10 *)ctsio->cdb; 5235 5236 if (cdb->byte2 & SR10_LONGID) 5237 longid = 1; 5238 else 5239 thirdparty_id = cdb->thirdparty_id; 5240 5241 resv_id = cdb->resv_id; 5242 length = scsi_2btoul(cdb->length); 5243 break; 5244 } 5245 } 5246 5247 /* 5248 * XXX KDM right now, we only support LUN reservation. We don't 5249 * support 3rd party reservations, or extent reservations, which 5250 * might actually need the parameter list. If we've gotten this 5251 * far, we've got a LUN reservation. Anything else got kicked out 5252 * above. So, according to SPC, ignore the length. 5253 */ 5254 length = 0; 5255 5256 if (((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) 5257 && (length > 0)) { 5258 ctsio->kern_data_ptr = malloc(length, M_CTL, M_WAITOK); 5259 ctsio->kern_data_len = length; 5260 ctsio->kern_total_len = length; 5261 ctsio->kern_data_resid = 0; 5262 ctsio->kern_rel_offset = 0; 5263 ctsio->kern_sg_entries = 0; 5264 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5265 ctsio->be_move_done = ctl_config_move_done; 5266 ctl_datamove((union ctl_io *)ctsio); 5267 5268 return (CTL_RETVAL_COMPLETE); 5269 } 5270 5271 if (length > 0) 5272 thirdparty_id = scsi_8btou64(ctsio->kern_data_ptr); 5273 5274 mtx_lock(&lun->lun_lock); 5275 if ((lun->flags & CTL_LUN_RESERVED) && (lun->res_idx != residx)) { 5276 ctl_set_reservation_conflict(ctsio); 5277 goto bailout; 5278 } 5279 5280 lun->flags |= CTL_LUN_RESERVED; 5281 lun->res_idx = residx; 5282 5283 ctl_set_success(ctsio); 5284 5285bailout: 5286 mtx_unlock(&lun->lun_lock); 5287 5288 if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) { 5289 free(ctsio->kern_data_ptr, M_CTL); 5290 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED; 5291 } 5292 5293 ctl_done((union ctl_io *)ctsio); 5294 return (CTL_RETVAL_COMPLETE); 5295} 5296 5297int 5298ctl_start_stop(struct ctl_scsiio *ctsio) 5299{ 5300 struct scsi_start_stop_unit *cdb; 5301 struct ctl_lun *lun; 5302 int retval; 5303 5304 CTL_DEBUG_PRINT(("ctl_start_stop\n")); 5305 5306 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5307 retval = 0; 5308 5309 cdb = (struct scsi_start_stop_unit *)ctsio->cdb; 5310 5311 /* 5312 * XXX KDM 5313 * We don't support the immediate bit on a stop unit. In order to 5314 * do that, we would need to code up a way to know that a stop is 5315 * pending, and hold off any new commands until it completes, one 5316 * way or another. Then we could accept or reject those commands 5317 * depending on its status. We would almost need to do the reverse 5318 * of what we do below for an immediate start -- return the copy of 5319 * the ctl_io to the FETD with status to send to the host (and to 5320 * free the copy!) and then free the original I/O once the stop 5321 * actually completes. That way, the OOA queue mechanism can work 5322 * to block commands that shouldn't proceed. Another alternative 5323 * would be to put the copy in the queue in place of the original, 5324 * and return the original back to the caller. That could be 5325 * slightly safer.. 5326 */ 5327 if ((cdb->byte2 & SSS_IMMED) 5328 && ((cdb->how & SSS_START) == 0)) { 5329 ctl_set_invalid_field(ctsio, 5330 /*sks_valid*/ 1, 5331 /*command*/ 1, 5332 /*field*/ 1, 5333 /*bit_valid*/ 1, 5334 /*bit*/ 0); 5335 ctl_done((union ctl_io *)ctsio); 5336 return (CTL_RETVAL_COMPLETE); 5337 } 5338 5339 if ((lun->flags & CTL_LUN_PR_RESERVED) 5340 && ((cdb->how & SSS_START)==0)) { 5341 uint32_t residx; 5342 5343 residx = ctl_get_initindex(&ctsio->io_hdr.nexus); 5344 if (ctl_get_prkey(lun, residx) == 0 5345 || (lun->pr_res_idx!=residx && lun->res_type < 4)) { 5346 5347 ctl_set_reservation_conflict(ctsio); 5348 ctl_done((union ctl_io *)ctsio); 5349 return (CTL_RETVAL_COMPLETE); 5350 } 5351 } 5352 5353 /* 5354 * If there is no backend on this device, we can't start or stop 5355 * it. In theory we shouldn't get any start/stop commands in the 5356 * first place at this level if the LUN doesn't have a backend. 5357 * That should get stopped by the command decode code. 5358 */ 5359 if (lun->backend == NULL) { 5360 ctl_set_invalid_opcode(ctsio); 5361 ctl_done((union ctl_io *)ctsio); 5362 return (CTL_RETVAL_COMPLETE); 5363 } 5364 5365 /* 5366 * XXX KDM Copan-specific offline behavior. 5367 * Figure out a reasonable way to port this? 5368 */ 5369#ifdef NEEDTOPORT 5370 mtx_lock(&lun->lun_lock); 5371 5372 if (((cdb->byte2 & SSS_ONOFFLINE) == 0) 5373 && (lun->flags & CTL_LUN_OFFLINE)) { 5374 /* 5375 * If the LUN is offline, and the on/offline bit isn't set, 5376 * reject the start or stop. Otherwise, let it through. 5377 */ 5378 mtx_unlock(&lun->lun_lock); 5379 ctl_set_lun_not_ready(ctsio); 5380 ctl_done((union ctl_io *)ctsio); 5381 } else { 5382 mtx_unlock(&lun->lun_lock); 5383#endif /* NEEDTOPORT */ 5384 /* 5385 * This could be a start or a stop when we're online, 5386 * or a stop/offline or start/online. A start or stop when 5387 * we're offline is covered in the case above. 5388 */ 5389 /* 5390 * In the non-immediate case, we send the request to 5391 * the backend and return status to the user when 5392 * it is done. 5393 * 5394 * In the immediate case, we allocate a new ctl_io 5395 * to hold a copy of the request, and send that to 5396 * the backend. We then set good status on the 5397 * user's request and return it immediately. 5398 */ 5399 if (cdb->byte2 & SSS_IMMED) { 5400 union ctl_io *new_io; 5401 5402 new_io = ctl_alloc_io(ctsio->io_hdr.pool); 5403 ctl_copy_io((union ctl_io *)ctsio, new_io); 5404 retval = lun->backend->config_write(new_io); 5405 ctl_set_success(ctsio); 5406 ctl_done((union ctl_io *)ctsio); 5407 } else { 5408 retval = lun->backend->config_write( 5409 (union ctl_io *)ctsio); 5410 } 5411#ifdef NEEDTOPORT 5412 } 5413#endif 5414 return (retval); 5415} 5416 5417/* 5418 * We support the SYNCHRONIZE CACHE command (10 and 16 byte versions), but 5419 * we don't really do anything with the LBA and length fields if the user 5420 * passes them in. Instead we'll just flush out the cache for the entire 5421 * LUN. 5422 */ 5423int 5424ctl_sync_cache(struct ctl_scsiio *ctsio) 5425{ 5426 struct ctl_lun *lun; 5427 struct ctl_softc *softc; 5428 struct ctl_lba_len_flags *lbalen; 5429 uint64_t starting_lba; 5430 uint32_t block_count; 5431 int retval; 5432 uint8_t byte2; 5433 5434 CTL_DEBUG_PRINT(("ctl_sync_cache\n")); 5435 5436 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5437 softc = lun->ctl_softc; 5438 retval = 0; 5439 5440 switch (ctsio->cdb[0]) { 5441 case SYNCHRONIZE_CACHE: { 5442 struct scsi_sync_cache *cdb; 5443 cdb = (struct scsi_sync_cache *)ctsio->cdb; 5444 5445 starting_lba = scsi_4btoul(cdb->begin_lba); 5446 block_count = scsi_2btoul(cdb->lb_count); 5447 byte2 = cdb->byte2; 5448 break; 5449 } 5450 case SYNCHRONIZE_CACHE_16: { 5451 struct scsi_sync_cache_16 *cdb; 5452 cdb = (struct scsi_sync_cache_16 *)ctsio->cdb; 5453 5454 starting_lba = scsi_8btou64(cdb->begin_lba); 5455 block_count = scsi_4btoul(cdb->lb_count); 5456 byte2 = cdb->byte2; 5457 break; 5458 } 5459 default: 5460 ctl_set_invalid_opcode(ctsio); 5461 ctl_done((union ctl_io *)ctsio); 5462 goto bailout; 5463 break; /* NOTREACHED */ 5464 } 5465 5466 /* 5467 * We check the LBA and length, but don't do anything with them. 5468 * A SYNCHRONIZE CACHE will cause the entire cache for this lun to 5469 * get flushed. This check will just help satisfy anyone who wants 5470 * to see an error for an out of range LBA. 5471 */ 5472 if ((starting_lba + block_count) > (lun->be_lun->maxlba + 1)) { 5473 ctl_set_lba_out_of_range(ctsio); 5474 ctl_done((union ctl_io *)ctsio); 5475 goto bailout; 5476 } 5477 5478 /* 5479 * If this LUN has no backend, we can't flush the cache anyway. 5480 */ 5481 if (lun->backend == NULL) { 5482 ctl_set_invalid_opcode(ctsio); 5483 ctl_done((union ctl_io *)ctsio); 5484 goto bailout; 5485 } 5486 5487 lbalen = (struct ctl_lba_len_flags *)&ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 5488 lbalen->lba = starting_lba; 5489 lbalen->len = block_count; 5490 lbalen->flags = byte2; 5491 5492 /* 5493 * Check to see whether we're configured to send the SYNCHRONIZE 5494 * CACHE command directly to the back end. 5495 */ 5496 mtx_lock(&lun->lun_lock); 5497 if ((softc->flags & CTL_FLAG_REAL_SYNC) 5498 && (++(lun->sync_count) >= lun->sync_interval)) { 5499 lun->sync_count = 0; 5500 mtx_unlock(&lun->lun_lock); 5501 retval = lun->backend->config_write((union ctl_io *)ctsio); 5502 } else { 5503 mtx_unlock(&lun->lun_lock); 5504 ctl_set_success(ctsio); 5505 ctl_done((union ctl_io *)ctsio); 5506 } 5507 5508bailout: 5509 5510 return (retval); 5511} 5512 5513int 5514ctl_format(struct ctl_scsiio *ctsio) 5515{ 5516 struct scsi_format *cdb; 5517 struct ctl_lun *lun; 5518 int length, defect_list_len; 5519 5520 CTL_DEBUG_PRINT(("ctl_format\n")); 5521 5522 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5523 5524 cdb = (struct scsi_format *)ctsio->cdb; 5525 5526 length = 0; 5527 if (cdb->byte2 & SF_FMTDATA) { 5528 if (cdb->byte2 & SF_LONGLIST) 5529 length = sizeof(struct scsi_format_header_long); 5530 else 5531 length = sizeof(struct scsi_format_header_short); 5532 } 5533 5534 if (((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) 5535 && (length > 0)) { 5536 ctsio->kern_data_ptr = malloc(length, M_CTL, M_WAITOK); 5537 ctsio->kern_data_len = length; 5538 ctsio->kern_total_len = length; 5539 ctsio->kern_data_resid = 0; 5540 ctsio->kern_rel_offset = 0; 5541 ctsio->kern_sg_entries = 0; 5542 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5543 ctsio->be_move_done = ctl_config_move_done; 5544 ctl_datamove((union ctl_io *)ctsio); 5545 5546 return (CTL_RETVAL_COMPLETE); 5547 } 5548 5549 defect_list_len = 0; 5550 5551 if (cdb->byte2 & SF_FMTDATA) { 5552 if (cdb->byte2 & SF_LONGLIST) { 5553 struct scsi_format_header_long *header; 5554 5555 header = (struct scsi_format_header_long *) 5556 ctsio->kern_data_ptr; 5557 5558 defect_list_len = scsi_4btoul(header->defect_list_len); 5559 if (defect_list_len != 0) { 5560 ctl_set_invalid_field(ctsio, 5561 /*sks_valid*/ 1, 5562 /*command*/ 0, 5563 /*field*/ 2, 5564 /*bit_valid*/ 0, 5565 /*bit*/ 0); 5566 goto bailout; 5567 } 5568 } else { 5569 struct scsi_format_header_short *header; 5570 5571 header = (struct scsi_format_header_short *) 5572 ctsio->kern_data_ptr; 5573 5574 defect_list_len = scsi_2btoul(header->defect_list_len); 5575 if (defect_list_len != 0) { 5576 ctl_set_invalid_field(ctsio, 5577 /*sks_valid*/ 1, 5578 /*command*/ 0, 5579 /*field*/ 2, 5580 /*bit_valid*/ 0, 5581 /*bit*/ 0); 5582 goto bailout; 5583 } 5584 } 5585 } 5586 5587 /* 5588 * The format command will clear out the "Medium format corrupted" 5589 * status if set by the configuration code. That status is really 5590 * just a way to notify the host that we have lost the media, and 5591 * get them to issue a command that will basically make them think 5592 * they're blowing away the media. 5593 */ 5594 mtx_lock(&lun->lun_lock); 5595 lun->flags &= ~CTL_LUN_INOPERABLE; 5596 mtx_unlock(&lun->lun_lock); 5597 5598 ctl_set_success(ctsio); 5599bailout: 5600 5601 if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) { 5602 free(ctsio->kern_data_ptr, M_CTL); 5603 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED; 5604 } 5605 5606 ctl_done((union ctl_io *)ctsio); 5607 return (CTL_RETVAL_COMPLETE); 5608} 5609 5610int 5611ctl_read_buffer(struct ctl_scsiio *ctsio) 5612{ 5613 struct ctl_lun *lun; 5614 uint64_t buffer_offset; 5615 uint32_t len; 5616 uint8_t byte2; 5617 static uint8_t descr[4]; 5618 static uint8_t echo_descr[4] = { 0 }; 5619 5620 CTL_DEBUG_PRINT(("ctl_read_buffer\n")); 5621 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5622 switch (ctsio->cdb[0]) { 5623 case READ_BUFFER: { 5624 struct scsi_read_buffer *cdb; 5625 5626 cdb = (struct scsi_read_buffer *)ctsio->cdb; 5627 buffer_offset = scsi_3btoul(cdb->offset); 5628 len = scsi_3btoul(cdb->length); 5629 byte2 = cdb->byte2; 5630 break; 5631 } 5632 case READ_BUFFER_16: { 5633 struct scsi_read_buffer_16 *cdb; 5634 5635 cdb = (struct scsi_read_buffer_16 *)ctsio->cdb; 5636 buffer_offset = scsi_8btou64(cdb->offset); 5637 len = scsi_4btoul(cdb->length); 5638 byte2 = cdb->byte2; 5639 break; 5640 } 5641 default: /* This shouldn't happen. */ 5642 ctl_set_invalid_opcode(ctsio); 5643 ctl_done((union ctl_io *)ctsio); 5644 return (CTL_RETVAL_COMPLETE); 5645 } 5646 5647 if ((byte2 & RWB_MODE) != RWB_MODE_DATA && 5648 (byte2 & RWB_MODE) != RWB_MODE_ECHO_DESCR && 5649 (byte2 & RWB_MODE) != RWB_MODE_DESCR) { 5650 ctl_set_invalid_field(ctsio, 5651 /*sks_valid*/ 1, 5652 /*command*/ 1, 5653 /*field*/ 1, 5654 /*bit_valid*/ 1, 5655 /*bit*/ 4); 5656 ctl_done((union ctl_io *)ctsio); 5657 return (CTL_RETVAL_COMPLETE); 5658 } 5659 5660 if (buffer_offset > CTL_WRITE_BUFFER_SIZE || 5661 buffer_offset + len > CTL_WRITE_BUFFER_SIZE) { 5662 ctl_set_invalid_field(ctsio, 5663 /*sks_valid*/ 1, 5664 /*command*/ 1, 5665 /*field*/ 6, 5666 /*bit_valid*/ 0, 5667 /*bit*/ 0); 5668 ctl_done((union ctl_io *)ctsio); 5669 return (CTL_RETVAL_COMPLETE); 5670 } 5671 5672 if ((byte2 & RWB_MODE) == RWB_MODE_DESCR) { 5673 descr[0] = 0; 5674 scsi_ulto3b(CTL_WRITE_BUFFER_SIZE, &descr[1]); 5675 ctsio->kern_data_ptr = descr; 5676 len = min(len, sizeof(descr)); 5677 } else if ((byte2 & RWB_MODE) == RWB_MODE_ECHO_DESCR) { 5678 ctsio->kern_data_ptr = echo_descr; 5679 len = min(len, sizeof(echo_descr)); 5680 } else { 5681 if (lun->write_buffer == NULL) { 5682 lun->write_buffer = malloc(CTL_WRITE_BUFFER_SIZE, 5683 M_CTL, M_WAITOK); 5684 } 5685 ctsio->kern_data_ptr = lun->write_buffer + buffer_offset; 5686 } 5687 ctsio->kern_data_len = len; 5688 ctsio->kern_total_len = len; 5689 ctsio->kern_data_resid = 0; 5690 ctsio->kern_rel_offset = 0; 5691 ctsio->kern_sg_entries = 0; 5692 ctl_set_success(ctsio); 5693 ctsio->be_move_done = ctl_config_move_done; 5694 ctl_datamove((union ctl_io *)ctsio); 5695 return (CTL_RETVAL_COMPLETE); 5696} 5697 5698int 5699ctl_write_buffer(struct ctl_scsiio *ctsio) 5700{ 5701 struct scsi_write_buffer *cdb; 5702 struct ctl_lun *lun; 5703 int buffer_offset, len; 5704 5705 CTL_DEBUG_PRINT(("ctl_write_buffer\n")); 5706 5707 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5708 cdb = (struct scsi_write_buffer *)ctsio->cdb; 5709 5710 if ((cdb->byte2 & RWB_MODE) != RWB_MODE_DATA) { 5711 ctl_set_invalid_field(ctsio, 5712 /*sks_valid*/ 1, 5713 /*command*/ 1, 5714 /*field*/ 1, 5715 /*bit_valid*/ 1, 5716 /*bit*/ 4); 5717 ctl_done((union ctl_io *)ctsio); 5718 return (CTL_RETVAL_COMPLETE); 5719 } 5720 5721 len = scsi_3btoul(cdb->length); 5722 buffer_offset = scsi_3btoul(cdb->offset); 5723 5724 if (buffer_offset + len > CTL_WRITE_BUFFER_SIZE) { 5725 ctl_set_invalid_field(ctsio, 5726 /*sks_valid*/ 1, 5727 /*command*/ 1, 5728 /*field*/ 6, 5729 /*bit_valid*/ 0, 5730 /*bit*/ 0); 5731 ctl_done((union ctl_io *)ctsio); 5732 return (CTL_RETVAL_COMPLETE); 5733 } 5734 5735 /* 5736 * If we've got a kernel request that hasn't been malloced yet, 5737 * malloc it and tell the caller the data buffer is here. 5738 */ 5739 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 5740 if (lun->write_buffer == NULL) { 5741 lun->write_buffer = malloc(CTL_WRITE_BUFFER_SIZE, 5742 M_CTL, M_WAITOK); 5743 } 5744 ctsio->kern_data_ptr = lun->write_buffer + buffer_offset; 5745 ctsio->kern_data_len = len; 5746 ctsio->kern_total_len = len; 5747 ctsio->kern_data_resid = 0; 5748 ctsio->kern_rel_offset = 0; 5749 ctsio->kern_sg_entries = 0; 5750 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5751 ctsio->be_move_done = ctl_config_move_done; 5752 ctl_datamove((union ctl_io *)ctsio); 5753 5754 return (CTL_RETVAL_COMPLETE); 5755 } 5756 5757 ctl_set_success(ctsio); 5758 ctl_done((union ctl_io *)ctsio); 5759 return (CTL_RETVAL_COMPLETE); 5760} 5761 5762int 5763ctl_write_same(struct ctl_scsiio *ctsio) 5764{ 5765 struct ctl_lun *lun; 5766 struct ctl_lba_len_flags *lbalen; 5767 uint64_t lba; 5768 uint32_t num_blocks; 5769 int len, retval; 5770 uint8_t byte2; 5771 5772 retval = CTL_RETVAL_COMPLETE; 5773 5774 CTL_DEBUG_PRINT(("ctl_write_same\n")); 5775 5776 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5777 5778 switch (ctsio->cdb[0]) { 5779 case WRITE_SAME_10: { 5780 struct scsi_write_same_10 *cdb; 5781 5782 cdb = (struct scsi_write_same_10 *)ctsio->cdb; 5783 5784 lba = scsi_4btoul(cdb->addr); 5785 num_blocks = scsi_2btoul(cdb->length); 5786 byte2 = cdb->byte2; 5787 break; 5788 } 5789 case WRITE_SAME_16: { 5790 struct scsi_write_same_16 *cdb; 5791 5792 cdb = (struct scsi_write_same_16 *)ctsio->cdb; 5793 5794 lba = scsi_8btou64(cdb->addr); 5795 num_blocks = scsi_4btoul(cdb->length); 5796 byte2 = cdb->byte2; 5797 break; 5798 } 5799 default: 5800 /* 5801 * We got a command we don't support. This shouldn't 5802 * happen, commands should be filtered out above us. 5803 */ 5804 ctl_set_invalid_opcode(ctsio); 5805 ctl_done((union ctl_io *)ctsio); 5806 5807 return (CTL_RETVAL_COMPLETE); 5808 break; /* NOTREACHED */ 5809 } 5810 5811 /* NDOB and ANCHOR flags can be used only together with UNMAP */ 5812 if ((byte2 & SWS_UNMAP) == 0 && 5813 (byte2 & (SWS_NDOB | SWS_ANCHOR)) != 0) { 5814 ctl_set_invalid_field(ctsio, /*sks_valid*/ 1, 5815 /*command*/ 1, /*field*/ 1, /*bit_valid*/ 1, /*bit*/ 0); 5816 ctl_done((union ctl_io *)ctsio); 5817 return (CTL_RETVAL_COMPLETE); 5818 } 5819 5820 /* 5821 * The first check is to make sure we're in bounds, the second 5822 * check is to catch wrap-around problems. If the lba + num blocks 5823 * is less than the lba, then we've wrapped around and the block 5824 * range is invalid anyway. 5825 */ 5826 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 5827 || ((lba + num_blocks) < lba)) { 5828 ctl_set_lba_out_of_range(ctsio); 5829 ctl_done((union ctl_io *)ctsio); 5830 return (CTL_RETVAL_COMPLETE); 5831 } 5832 5833 /* Zero number of blocks means "to the last logical block" */ 5834 if (num_blocks == 0) { 5835 if ((lun->be_lun->maxlba + 1) - lba > UINT32_MAX) { 5836 ctl_set_invalid_field(ctsio, 5837 /*sks_valid*/ 0, 5838 /*command*/ 1, 5839 /*field*/ 0, 5840 /*bit_valid*/ 0, 5841 /*bit*/ 0); 5842 ctl_done((union ctl_io *)ctsio); 5843 return (CTL_RETVAL_COMPLETE); 5844 } 5845 num_blocks = (lun->be_lun->maxlba + 1) - lba; 5846 } 5847 5848 len = lun->be_lun->blocksize; 5849 5850 /* 5851 * If we've got a kernel request that hasn't been malloced yet, 5852 * malloc it and tell the caller the data buffer is here. 5853 */ 5854 if ((byte2 & SWS_NDOB) == 0 && 5855 (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 5856 ctsio->kern_data_ptr = malloc(len, M_CTL, M_WAITOK);; 5857 ctsio->kern_data_len = len; 5858 ctsio->kern_total_len = len; 5859 ctsio->kern_data_resid = 0; 5860 ctsio->kern_rel_offset = 0; 5861 ctsio->kern_sg_entries = 0; 5862 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5863 ctsio->be_move_done = ctl_config_move_done; 5864 ctl_datamove((union ctl_io *)ctsio); 5865 5866 return (CTL_RETVAL_COMPLETE); 5867 } 5868 5869 lbalen = (struct ctl_lba_len_flags *)&ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 5870 lbalen->lba = lba; 5871 lbalen->len = num_blocks; 5872 lbalen->flags = byte2; 5873 retval = lun->backend->config_write((union ctl_io *)ctsio); 5874 5875 return (retval); 5876} 5877 5878int 5879ctl_unmap(struct ctl_scsiio *ctsio) 5880{ 5881 struct ctl_lun *lun; 5882 struct scsi_unmap *cdb; 5883 struct ctl_ptr_len_flags *ptrlen; 5884 struct scsi_unmap_header *hdr; 5885 struct scsi_unmap_desc *buf, *end, *endnz, *range; 5886 uint64_t lba; 5887 uint32_t num_blocks; 5888 int len, retval; 5889 uint8_t byte2; 5890 5891 retval = CTL_RETVAL_COMPLETE; 5892 5893 CTL_DEBUG_PRINT(("ctl_unmap\n")); 5894 5895 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5896 cdb = (struct scsi_unmap *)ctsio->cdb; 5897 5898 len = scsi_2btoul(cdb->length); 5899 byte2 = cdb->byte2; 5900 5901 /* 5902 * If we've got a kernel request that hasn't been malloced yet, 5903 * malloc it and tell the caller the data buffer is here. 5904 */ 5905 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 5906 ctsio->kern_data_ptr = malloc(len, M_CTL, M_WAITOK);; 5907 ctsio->kern_data_len = len; 5908 ctsio->kern_total_len = len; 5909 ctsio->kern_data_resid = 0; 5910 ctsio->kern_rel_offset = 0; 5911 ctsio->kern_sg_entries = 0; 5912 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5913 ctsio->be_move_done = ctl_config_move_done; 5914 ctl_datamove((union ctl_io *)ctsio); 5915 5916 return (CTL_RETVAL_COMPLETE); 5917 } 5918 5919 len = ctsio->kern_total_len - ctsio->kern_data_resid; 5920 hdr = (struct scsi_unmap_header *)ctsio->kern_data_ptr; 5921 if (len < sizeof (*hdr) || 5922 len < (scsi_2btoul(hdr->length) + sizeof(hdr->length)) || 5923 len < (scsi_2btoul(hdr->desc_length) + sizeof (*hdr)) || 5924 scsi_2btoul(hdr->desc_length) % sizeof(*buf) != 0) { 5925 ctl_set_invalid_field(ctsio, 5926 /*sks_valid*/ 0, 5927 /*command*/ 0, 5928 /*field*/ 0, 5929 /*bit_valid*/ 0, 5930 /*bit*/ 0); 5931 goto done; 5932 } 5933 len = scsi_2btoul(hdr->desc_length); 5934 buf = (struct scsi_unmap_desc *)(hdr + 1); 5935 end = buf + len / sizeof(*buf); 5936 5937 endnz = buf; 5938 for (range = buf; range < end; range++) { 5939 lba = scsi_8btou64(range->lba); 5940 num_blocks = scsi_4btoul(range->length); 5941 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 5942 || ((lba + num_blocks) < lba)) { 5943 ctl_set_lba_out_of_range(ctsio); 5944 ctl_done((union ctl_io *)ctsio); 5945 return (CTL_RETVAL_COMPLETE); 5946 } 5947 if (num_blocks != 0) 5948 endnz = range + 1; 5949 } 5950 5951 /* 5952 * Block backend can not handle zero last range. 5953 * Filter it out and return if there is nothing left. 5954 */ 5955 len = (uint8_t *)endnz - (uint8_t *)buf; 5956 if (len == 0) { 5957 ctl_set_success(ctsio); 5958 goto done; 5959 } 5960 5961 mtx_lock(&lun->lun_lock); 5962 ptrlen = (struct ctl_ptr_len_flags *) 5963 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 5964 ptrlen->ptr = (void *)buf; 5965 ptrlen->len = len; 5966 ptrlen->flags = byte2; 5967 ctl_check_blocked(lun); 5968 mtx_unlock(&lun->lun_lock); 5969 5970 retval = lun->backend->config_write((union ctl_io *)ctsio); 5971 return (retval); 5972 5973done: 5974 if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) { 5975 free(ctsio->kern_data_ptr, M_CTL); 5976 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED; 5977 } 5978 ctl_done((union ctl_io *)ctsio); 5979 return (CTL_RETVAL_COMPLETE); 5980} 5981 5982/* 5983 * Note that this function currently doesn't actually do anything inside 5984 * CTL to enforce things if the DQue bit is turned on. 5985 * 5986 * Also note that this function can't be used in the default case, because 5987 * the DQue bit isn't set in the changeable mask for the control mode page 5988 * anyway. This is just here as an example for how to implement a page 5989 * handler, and a placeholder in case we want to allow the user to turn 5990 * tagged queueing on and off. 5991 * 5992 * The D_SENSE bit handling is functional, however, and will turn 5993 * descriptor sense on and off for a given LUN. 5994 */ 5995int 5996ctl_control_page_handler(struct ctl_scsiio *ctsio, 5997 struct ctl_page_index *page_index, uint8_t *page_ptr) 5998{ 5999 struct scsi_control_page *current_cp, *saved_cp, *user_cp; 6000 struct ctl_lun *lun; 6001 int set_ua; 6002 uint32_t initidx; 6003 6004 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6005 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 6006 set_ua = 0; 6007 6008 user_cp = (struct scsi_control_page *)page_ptr; 6009 current_cp = (struct scsi_control_page *) 6010 (page_index->page_data + (page_index->page_len * 6011 CTL_PAGE_CURRENT)); 6012 saved_cp = (struct scsi_control_page *) 6013 (page_index->page_data + (page_index->page_len * 6014 CTL_PAGE_SAVED)); 6015 6016 mtx_lock(&lun->lun_lock); 6017 if (((current_cp->rlec & SCP_DSENSE) == 0) 6018 && ((user_cp->rlec & SCP_DSENSE) != 0)) { 6019 /* 6020 * Descriptor sense is currently turned off and the user 6021 * wants to turn it on. 6022 */ 6023 current_cp->rlec |= SCP_DSENSE; 6024 saved_cp->rlec |= SCP_DSENSE; 6025 lun->flags |= CTL_LUN_SENSE_DESC; 6026 set_ua = 1; 6027 } else if (((current_cp->rlec & SCP_DSENSE) != 0) 6028 && ((user_cp->rlec & SCP_DSENSE) == 0)) { 6029 /* 6030 * Descriptor sense is currently turned on, and the user 6031 * wants to turn it off. 6032 */ 6033 current_cp->rlec &= ~SCP_DSENSE; 6034 saved_cp->rlec &= ~SCP_DSENSE; 6035 lun->flags &= ~CTL_LUN_SENSE_DESC; 6036 set_ua = 1; 6037 } 6038 if ((current_cp->queue_flags & SCP_QUEUE_ALG_MASK) != 6039 (user_cp->queue_flags & SCP_QUEUE_ALG_MASK)) { 6040 current_cp->queue_flags &= ~SCP_QUEUE_ALG_MASK; 6041 current_cp->queue_flags |= user_cp->queue_flags & SCP_QUEUE_ALG_MASK; 6042 saved_cp->queue_flags &= ~SCP_QUEUE_ALG_MASK; 6043 saved_cp->queue_flags |= user_cp->queue_flags & SCP_QUEUE_ALG_MASK; 6044 set_ua = 1; 6045 } 6046 if ((current_cp->eca_and_aen & SCP_SWP) != 6047 (user_cp->eca_and_aen & SCP_SWP)) { 6048 current_cp->eca_and_aen &= ~SCP_SWP; 6049 current_cp->eca_and_aen |= user_cp->eca_and_aen & SCP_SWP; 6050 saved_cp->eca_and_aen &= ~SCP_SWP; 6051 saved_cp->eca_and_aen |= user_cp->eca_and_aen & SCP_SWP; 6052 set_ua = 1; 6053 } 6054 if (set_ua != 0) 6055 ctl_est_ua_all(lun, initidx, CTL_UA_MODE_CHANGE); 6056 mtx_unlock(&lun->lun_lock); 6057 if (set_ua) { 6058 ctl_isc_announce_mode(lun, 6059 ctl_get_initindex(&ctsio->io_hdr.nexus), 6060 page_index->page_code, page_index->subpage); 6061 } 6062 return (0); 6063} 6064 6065int 6066ctl_caching_sp_handler(struct ctl_scsiio *ctsio, 6067 struct ctl_page_index *page_index, uint8_t *page_ptr) 6068{ 6069 struct scsi_caching_page *current_cp, *saved_cp, *user_cp; 6070 struct ctl_lun *lun; 6071 int set_ua; 6072 uint32_t initidx; 6073 6074 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6075 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 6076 set_ua = 0; 6077 6078 user_cp = (struct scsi_caching_page *)page_ptr; 6079 current_cp = (struct scsi_caching_page *) 6080 (page_index->page_data + (page_index->page_len * 6081 CTL_PAGE_CURRENT)); 6082 saved_cp = (struct scsi_caching_page *) 6083 (page_index->page_data + (page_index->page_len * 6084 CTL_PAGE_SAVED)); 6085 6086 mtx_lock(&lun->lun_lock); 6087 if ((current_cp->flags1 & (SCP_WCE | SCP_RCD)) != 6088 (user_cp->flags1 & (SCP_WCE | SCP_RCD))) { 6089 current_cp->flags1 &= ~(SCP_WCE | SCP_RCD); 6090 current_cp->flags1 |= user_cp->flags1 & (SCP_WCE | SCP_RCD); 6091 saved_cp->flags1 &= ~(SCP_WCE | SCP_RCD); 6092 saved_cp->flags1 |= user_cp->flags1 & (SCP_WCE | SCP_RCD); 6093 set_ua = 1; 6094 } 6095 if (set_ua != 0) 6096 ctl_est_ua_all(lun, initidx, CTL_UA_MODE_CHANGE); 6097 mtx_unlock(&lun->lun_lock); 6098 if (set_ua) { 6099 ctl_isc_announce_mode(lun, 6100 ctl_get_initindex(&ctsio->io_hdr.nexus), 6101 page_index->page_code, page_index->subpage); 6102 } 6103 return (0); 6104} 6105 6106int 6107ctl_debugconf_sp_select_handler(struct ctl_scsiio *ctsio, 6108 struct ctl_page_index *page_index, 6109 uint8_t *page_ptr) 6110{ 6111 uint8_t *c; 6112 int i; 6113 6114 c = ((struct copan_debugconf_subpage *)page_ptr)->ctl_time_io_secs; 6115 ctl_time_io_secs = 6116 (c[0] << 8) | 6117 (c[1] << 0) | 6118 0; 6119 CTL_DEBUG_PRINT(("set ctl_time_io_secs to %d\n", ctl_time_io_secs)); 6120 printf("set ctl_time_io_secs to %d\n", ctl_time_io_secs); 6121 printf("page data:"); 6122 for (i=0; i<8; i++) 6123 printf(" %.2x",page_ptr[i]); 6124 printf("\n"); 6125 return (0); 6126} 6127 6128int 6129ctl_debugconf_sp_sense_handler(struct ctl_scsiio *ctsio, 6130 struct ctl_page_index *page_index, 6131 int pc) 6132{ 6133 struct copan_debugconf_subpage *page; 6134 6135 page = (struct copan_debugconf_subpage *)page_index->page_data + 6136 (page_index->page_len * pc); 6137 6138 switch (pc) { 6139 case SMS_PAGE_CTRL_CHANGEABLE >> 6: 6140 case SMS_PAGE_CTRL_DEFAULT >> 6: 6141 case SMS_PAGE_CTRL_SAVED >> 6: 6142 /* 6143 * We don't update the changable or default bits for this page. 6144 */ 6145 break; 6146 case SMS_PAGE_CTRL_CURRENT >> 6: 6147 page->ctl_time_io_secs[0] = ctl_time_io_secs >> 8; 6148 page->ctl_time_io_secs[1] = ctl_time_io_secs >> 0; 6149 break; 6150 default: 6151#ifdef NEEDTOPORT 6152 EPRINT(0, "Invalid PC %d!!", pc); 6153#endif /* NEEDTOPORT */ 6154 break; 6155 } 6156 return (0); 6157} 6158 6159 6160static int 6161ctl_do_mode_select(union ctl_io *io) 6162{ 6163 struct scsi_mode_page_header *page_header; 6164 struct ctl_page_index *page_index; 6165 struct ctl_scsiio *ctsio; 6166 int control_dev, page_len; 6167 int page_len_offset, page_len_size; 6168 union ctl_modepage_info *modepage_info; 6169 struct ctl_lun *lun; 6170 int *len_left, *len_used; 6171 int retval, i; 6172 6173 ctsio = &io->scsiio; 6174 page_index = NULL; 6175 page_len = 0; 6176 retval = CTL_RETVAL_COMPLETE; 6177 6178 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6179 6180 if (lun->be_lun->lun_type != T_DIRECT) 6181 control_dev = 1; 6182 else 6183 control_dev = 0; 6184 6185 modepage_info = (union ctl_modepage_info *) 6186 ctsio->io_hdr.ctl_private[CTL_PRIV_MODEPAGE].bytes; 6187 len_left = &modepage_info->header.len_left; 6188 len_used = &modepage_info->header.len_used; 6189 6190do_next_page: 6191 6192 page_header = (struct scsi_mode_page_header *) 6193 (ctsio->kern_data_ptr + *len_used); 6194 6195 if (*len_left == 0) { 6196 free(ctsio->kern_data_ptr, M_CTL); 6197 ctl_set_success(ctsio); 6198 ctl_done((union ctl_io *)ctsio); 6199 return (CTL_RETVAL_COMPLETE); 6200 } else if (*len_left < sizeof(struct scsi_mode_page_header)) { 6201 6202 free(ctsio->kern_data_ptr, M_CTL); 6203 ctl_set_param_len_error(ctsio); 6204 ctl_done((union ctl_io *)ctsio); 6205 return (CTL_RETVAL_COMPLETE); 6206 6207 } else if ((page_header->page_code & SMPH_SPF) 6208 && (*len_left < sizeof(struct scsi_mode_page_header_sp))) { 6209 6210 free(ctsio->kern_data_ptr, M_CTL); 6211 ctl_set_param_len_error(ctsio); 6212 ctl_done((union ctl_io *)ctsio); 6213 return (CTL_RETVAL_COMPLETE); 6214 } 6215 6216 6217 /* 6218 * XXX KDM should we do something with the block descriptor? 6219 */ 6220 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6221 6222 if ((control_dev != 0) 6223 && (lun->mode_pages.index[i].page_flags & 6224 CTL_PAGE_FLAG_DISK_ONLY)) 6225 continue; 6226 6227 if ((lun->mode_pages.index[i].page_code & SMPH_PC_MASK) != 6228 (page_header->page_code & SMPH_PC_MASK)) 6229 continue; 6230 6231 /* 6232 * If neither page has a subpage code, then we've got a 6233 * match. 6234 */ 6235 if (((lun->mode_pages.index[i].page_code & SMPH_SPF) == 0) 6236 && ((page_header->page_code & SMPH_SPF) == 0)) { 6237 page_index = &lun->mode_pages.index[i]; 6238 page_len = page_header->page_length; 6239 break; 6240 } 6241 6242 /* 6243 * If both pages have subpages, then the subpage numbers 6244 * have to match. 6245 */ 6246 if ((lun->mode_pages.index[i].page_code & SMPH_SPF) 6247 && (page_header->page_code & SMPH_SPF)) { 6248 struct scsi_mode_page_header_sp *sph; 6249 6250 sph = (struct scsi_mode_page_header_sp *)page_header; 6251 6252 if (lun->mode_pages.index[i].subpage == 6253 sph->subpage) { 6254 page_index = &lun->mode_pages.index[i]; 6255 page_len = scsi_2btoul(sph->page_length); 6256 break; 6257 } 6258 } 6259 } 6260 6261 /* 6262 * If we couldn't find the page, or if we don't have a mode select 6263 * handler for it, send back an error to the user. 6264 */ 6265 if ((page_index == NULL) 6266 || (page_index->select_handler == NULL)) { 6267 ctl_set_invalid_field(ctsio, 6268 /*sks_valid*/ 1, 6269 /*command*/ 0, 6270 /*field*/ *len_used, 6271 /*bit_valid*/ 0, 6272 /*bit*/ 0); 6273 free(ctsio->kern_data_ptr, M_CTL); 6274 ctl_done((union ctl_io *)ctsio); 6275 return (CTL_RETVAL_COMPLETE); 6276 } 6277 6278 if (page_index->page_code & SMPH_SPF) { 6279 page_len_offset = 2; 6280 page_len_size = 2; 6281 } else { 6282 page_len_size = 1; 6283 page_len_offset = 1; 6284 } 6285 6286 /* 6287 * If the length the initiator gives us isn't the one we specify in 6288 * the mode page header, or if they didn't specify enough data in 6289 * the CDB to avoid truncating this page, kick out the request. 6290 */ 6291 if ((page_len != (page_index->page_len - page_len_offset - 6292 page_len_size)) 6293 || (*len_left < page_index->page_len)) { 6294 6295 6296 ctl_set_invalid_field(ctsio, 6297 /*sks_valid*/ 1, 6298 /*command*/ 0, 6299 /*field*/ *len_used + page_len_offset, 6300 /*bit_valid*/ 0, 6301 /*bit*/ 0); 6302 free(ctsio->kern_data_ptr, M_CTL); 6303 ctl_done((union ctl_io *)ctsio); 6304 return (CTL_RETVAL_COMPLETE); 6305 } 6306 6307 /* 6308 * Run through the mode page, checking to make sure that the bits 6309 * the user changed are actually legal for him to change. 6310 */ 6311 for (i = 0; i < page_index->page_len; i++) { 6312 uint8_t *user_byte, *change_mask, *current_byte; 6313 int bad_bit; 6314 int j; 6315 6316 user_byte = (uint8_t *)page_header + i; 6317 change_mask = page_index->page_data + 6318 (page_index->page_len * CTL_PAGE_CHANGEABLE) + i; 6319 current_byte = page_index->page_data + 6320 (page_index->page_len * CTL_PAGE_CURRENT) + i; 6321 6322 /* 6323 * Check to see whether the user set any bits in this byte 6324 * that he is not allowed to set. 6325 */ 6326 if ((*user_byte & ~(*change_mask)) == 6327 (*current_byte & ~(*change_mask))) 6328 continue; 6329 6330 /* 6331 * Go through bit by bit to determine which one is illegal. 6332 */ 6333 bad_bit = 0; 6334 for (j = 7; j >= 0; j--) { 6335 if ((((1 << i) & ~(*change_mask)) & *user_byte) != 6336 (((1 << i) & ~(*change_mask)) & *current_byte)) { 6337 bad_bit = i; 6338 break; 6339 } 6340 } 6341 ctl_set_invalid_field(ctsio, 6342 /*sks_valid*/ 1, 6343 /*command*/ 0, 6344 /*field*/ *len_used + i, 6345 /*bit_valid*/ 1, 6346 /*bit*/ bad_bit); 6347 free(ctsio->kern_data_ptr, M_CTL); 6348 ctl_done((union ctl_io *)ctsio); 6349 return (CTL_RETVAL_COMPLETE); 6350 } 6351 6352 /* 6353 * Decrement these before we call the page handler, since we may 6354 * end up getting called back one way or another before the handler 6355 * returns to this context. 6356 */ 6357 *len_left -= page_index->page_len; 6358 *len_used += page_index->page_len; 6359 6360 retval = page_index->select_handler(ctsio, page_index, 6361 (uint8_t *)page_header); 6362 6363 /* 6364 * If the page handler returns CTL_RETVAL_QUEUED, then we need to 6365 * wait until this queued command completes to finish processing 6366 * the mode page. If it returns anything other than 6367 * CTL_RETVAL_COMPLETE (e.g. CTL_RETVAL_ERROR), then it should have 6368 * already set the sense information, freed the data pointer, and 6369 * completed the io for us. 6370 */ 6371 if (retval != CTL_RETVAL_COMPLETE) 6372 goto bailout_no_done; 6373 6374 /* 6375 * If the initiator sent us more than one page, parse the next one. 6376 */ 6377 if (*len_left > 0) 6378 goto do_next_page; 6379 6380 ctl_set_success(ctsio); 6381 free(ctsio->kern_data_ptr, M_CTL); 6382 ctl_done((union ctl_io *)ctsio); 6383 6384bailout_no_done: 6385 6386 return (CTL_RETVAL_COMPLETE); 6387 6388} 6389 6390int 6391ctl_mode_select(struct ctl_scsiio *ctsio) 6392{ 6393 int param_len, pf, sp; 6394 int header_size, bd_len; 6395 int len_left, len_used; 6396 struct ctl_page_index *page_index; 6397 struct ctl_lun *lun; 6398 int control_dev, page_len; 6399 union ctl_modepage_info *modepage_info; 6400 int retval; 6401 6402 pf = 0; 6403 sp = 0; 6404 page_len = 0; 6405 len_used = 0; 6406 len_left = 0; 6407 retval = 0; 6408 bd_len = 0; 6409 page_index = NULL; 6410 6411 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6412 6413 if (lun->be_lun->lun_type != T_DIRECT) 6414 control_dev = 1; 6415 else 6416 control_dev = 0; 6417 6418 switch (ctsio->cdb[0]) { 6419 case MODE_SELECT_6: { 6420 struct scsi_mode_select_6 *cdb; 6421 6422 cdb = (struct scsi_mode_select_6 *)ctsio->cdb; 6423 6424 pf = (cdb->byte2 & SMS_PF) ? 1 : 0; 6425 sp = (cdb->byte2 & SMS_SP) ? 1 : 0; 6426 6427 param_len = cdb->length; 6428 header_size = sizeof(struct scsi_mode_header_6); 6429 break; 6430 } 6431 case MODE_SELECT_10: { 6432 struct scsi_mode_select_10 *cdb; 6433 6434 cdb = (struct scsi_mode_select_10 *)ctsio->cdb; 6435 6436 pf = (cdb->byte2 & SMS_PF) ? 1 : 0; 6437 sp = (cdb->byte2 & SMS_SP) ? 1 : 0; 6438 6439 param_len = scsi_2btoul(cdb->length); 6440 header_size = sizeof(struct scsi_mode_header_10); 6441 break; 6442 } 6443 default: 6444 ctl_set_invalid_opcode(ctsio); 6445 ctl_done((union ctl_io *)ctsio); 6446 return (CTL_RETVAL_COMPLETE); 6447 break; /* NOTREACHED */ 6448 } 6449 6450 /* 6451 * From SPC-3: 6452 * "A parameter list length of zero indicates that the Data-Out Buffer 6453 * shall be empty. This condition shall not be considered as an error." 6454 */ 6455 if (param_len == 0) { 6456 ctl_set_success(ctsio); 6457 ctl_done((union ctl_io *)ctsio); 6458 return (CTL_RETVAL_COMPLETE); 6459 } 6460 6461 /* 6462 * Since we'll hit this the first time through, prior to 6463 * allocation, we don't need to free a data buffer here. 6464 */ 6465 if (param_len < header_size) { 6466 ctl_set_param_len_error(ctsio); 6467 ctl_done((union ctl_io *)ctsio); 6468 return (CTL_RETVAL_COMPLETE); 6469 } 6470 6471 /* 6472 * Allocate the data buffer and grab the user's data. In theory, 6473 * we shouldn't have to sanity check the parameter list length here 6474 * because the maximum size is 64K. We should be able to malloc 6475 * that much without too many problems. 6476 */ 6477 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 6478 ctsio->kern_data_ptr = malloc(param_len, M_CTL, M_WAITOK); 6479 ctsio->kern_data_len = param_len; 6480 ctsio->kern_total_len = param_len; 6481 ctsio->kern_data_resid = 0; 6482 ctsio->kern_rel_offset = 0; 6483 ctsio->kern_sg_entries = 0; 6484 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6485 ctsio->be_move_done = ctl_config_move_done; 6486 ctl_datamove((union ctl_io *)ctsio); 6487 6488 return (CTL_RETVAL_COMPLETE); 6489 } 6490 6491 switch (ctsio->cdb[0]) { 6492 case MODE_SELECT_6: { 6493 struct scsi_mode_header_6 *mh6; 6494 6495 mh6 = (struct scsi_mode_header_6 *)ctsio->kern_data_ptr; 6496 bd_len = mh6->blk_desc_len; 6497 break; 6498 } 6499 case MODE_SELECT_10: { 6500 struct scsi_mode_header_10 *mh10; 6501 6502 mh10 = (struct scsi_mode_header_10 *)ctsio->kern_data_ptr; 6503 bd_len = scsi_2btoul(mh10->blk_desc_len); 6504 break; 6505 } 6506 default: 6507 panic("Invalid CDB type %#x", ctsio->cdb[0]); 6508 break; 6509 } 6510 6511 if (param_len < (header_size + bd_len)) { 6512 free(ctsio->kern_data_ptr, M_CTL); 6513 ctl_set_param_len_error(ctsio); 6514 ctl_done((union ctl_io *)ctsio); 6515 return (CTL_RETVAL_COMPLETE); 6516 } 6517 6518 /* 6519 * Set the IO_CONT flag, so that if this I/O gets passed to 6520 * ctl_config_write_done(), it'll get passed back to 6521 * ctl_do_mode_select() for further processing, or completion if 6522 * we're all done. 6523 */ 6524 ctsio->io_hdr.flags |= CTL_FLAG_IO_CONT; 6525 ctsio->io_cont = ctl_do_mode_select; 6526 6527 modepage_info = (union ctl_modepage_info *) 6528 ctsio->io_hdr.ctl_private[CTL_PRIV_MODEPAGE].bytes; 6529 6530 memset(modepage_info, 0, sizeof(*modepage_info)); 6531 6532 len_left = param_len - header_size - bd_len; 6533 len_used = header_size + bd_len; 6534 6535 modepage_info->header.len_left = len_left; 6536 modepage_info->header.len_used = len_used; 6537 6538 return (ctl_do_mode_select((union ctl_io *)ctsio)); 6539} 6540 6541int 6542ctl_mode_sense(struct ctl_scsiio *ctsio) 6543{ 6544 struct ctl_lun *lun; 6545 int pc, page_code, dbd, llba, subpage; 6546 int alloc_len, page_len, header_len, total_len; 6547 struct scsi_mode_block_descr *block_desc; 6548 struct ctl_page_index *page_index; 6549 int control_dev; 6550 6551 dbd = 0; 6552 llba = 0; 6553 block_desc = NULL; 6554 page_index = NULL; 6555 6556 CTL_DEBUG_PRINT(("ctl_mode_sense\n")); 6557 6558 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6559 6560 if (lun->be_lun->lun_type != T_DIRECT) 6561 control_dev = 1; 6562 else 6563 control_dev = 0; 6564 6565 switch (ctsio->cdb[0]) { 6566 case MODE_SENSE_6: { 6567 struct scsi_mode_sense_6 *cdb; 6568 6569 cdb = (struct scsi_mode_sense_6 *)ctsio->cdb; 6570 6571 header_len = sizeof(struct scsi_mode_hdr_6); 6572 if (cdb->byte2 & SMS_DBD) 6573 dbd = 1; 6574 else 6575 header_len += sizeof(struct scsi_mode_block_descr); 6576 6577 pc = (cdb->page & SMS_PAGE_CTRL_MASK) >> 6; 6578 page_code = cdb->page & SMS_PAGE_CODE; 6579 subpage = cdb->subpage; 6580 alloc_len = cdb->length; 6581 break; 6582 } 6583 case MODE_SENSE_10: { 6584 struct scsi_mode_sense_10 *cdb; 6585 6586 cdb = (struct scsi_mode_sense_10 *)ctsio->cdb; 6587 6588 header_len = sizeof(struct scsi_mode_hdr_10); 6589 6590 if (cdb->byte2 & SMS_DBD) 6591 dbd = 1; 6592 else 6593 header_len += sizeof(struct scsi_mode_block_descr); 6594 if (cdb->byte2 & SMS10_LLBAA) 6595 llba = 1; 6596 pc = (cdb->page & SMS_PAGE_CTRL_MASK) >> 6; 6597 page_code = cdb->page & SMS_PAGE_CODE; 6598 subpage = cdb->subpage; 6599 alloc_len = scsi_2btoul(cdb->length); 6600 break; 6601 } 6602 default: 6603 ctl_set_invalid_opcode(ctsio); 6604 ctl_done((union ctl_io *)ctsio); 6605 return (CTL_RETVAL_COMPLETE); 6606 break; /* NOTREACHED */ 6607 } 6608 6609 /* 6610 * We have to make a first pass through to calculate the size of 6611 * the pages that match the user's query. Then we allocate enough 6612 * memory to hold it, and actually copy the data into the buffer. 6613 */ 6614 switch (page_code) { 6615 case SMS_ALL_PAGES_PAGE: { 6616 int i; 6617 6618 page_len = 0; 6619 6620 /* 6621 * At the moment, values other than 0 and 0xff here are 6622 * reserved according to SPC-3. 6623 */ 6624 if ((subpage != SMS_SUBPAGE_PAGE_0) 6625 && (subpage != SMS_SUBPAGE_ALL)) { 6626 ctl_set_invalid_field(ctsio, 6627 /*sks_valid*/ 1, 6628 /*command*/ 1, 6629 /*field*/ 3, 6630 /*bit_valid*/ 0, 6631 /*bit*/ 0); 6632 ctl_done((union ctl_io *)ctsio); 6633 return (CTL_RETVAL_COMPLETE); 6634 } 6635 6636 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6637 if ((control_dev != 0) 6638 && (lun->mode_pages.index[i].page_flags & 6639 CTL_PAGE_FLAG_DISK_ONLY)) 6640 continue; 6641 6642 /* 6643 * We don't use this subpage if the user didn't 6644 * request all subpages. 6645 */ 6646 if ((lun->mode_pages.index[i].subpage != 0) 6647 && (subpage == SMS_SUBPAGE_PAGE_0)) 6648 continue; 6649 6650#if 0 6651 printf("found page %#x len %d\n", 6652 lun->mode_pages.index[i].page_code & 6653 SMPH_PC_MASK, 6654 lun->mode_pages.index[i].page_len); 6655#endif 6656 page_len += lun->mode_pages.index[i].page_len; 6657 } 6658 break; 6659 } 6660 default: { 6661 int i; 6662 6663 page_len = 0; 6664 6665 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6666 /* Look for the right page code */ 6667 if ((lun->mode_pages.index[i].page_code & 6668 SMPH_PC_MASK) != page_code) 6669 continue; 6670 6671 /* Look for the right subpage or the subpage wildcard*/ 6672 if ((lun->mode_pages.index[i].subpage != subpage) 6673 && (subpage != SMS_SUBPAGE_ALL)) 6674 continue; 6675 6676 /* Make sure the page is supported for this dev type */ 6677 if ((control_dev != 0) 6678 && (lun->mode_pages.index[i].page_flags & 6679 CTL_PAGE_FLAG_DISK_ONLY)) 6680 continue; 6681 6682#if 0 6683 printf("found page %#x len %d\n", 6684 lun->mode_pages.index[i].page_code & 6685 SMPH_PC_MASK, 6686 lun->mode_pages.index[i].page_len); 6687#endif 6688 6689 page_len += lun->mode_pages.index[i].page_len; 6690 } 6691 6692 if (page_len == 0) { 6693 ctl_set_invalid_field(ctsio, 6694 /*sks_valid*/ 1, 6695 /*command*/ 1, 6696 /*field*/ 2, 6697 /*bit_valid*/ 1, 6698 /*bit*/ 5); 6699 ctl_done((union ctl_io *)ctsio); 6700 return (CTL_RETVAL_COMPLETE); 6701 } 6702 break; 6703 } 6704 } 6705 6706 total_len = header_len + page_len; 6707#if 0 6708 printf("header_len = %d, page_len = %d, total_len = %d\n", 6709 header_len, page_len, total_len); 6710#endif 6711 6712 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 6713 ctsio->kern_sg_entries = 0; 6714 ctsio->kern_data_resid = 0; 6715 ctsio->kern_rel_offset = 0; 6716 if (total_len < alloc_len) { 6717 ctsio->residual = alloc_len - total_len; 6718 ctsio->kern_data_len = total_len; 6719 ctsio->kern_total_len = total_len; 6720 } else { 6721 ctsio->residual = 0; 6722 ctsio->kern_data_len = alloc_len; 6723 ctsio->kern_total_len = alloc_len; 6724 } 6725 6726 switch (ctsio->cdb[0]) { 6727 case MODE_SENSE_6: { 6728 struct scsi_mode_hdr_6 *header; 6729 6730 header = (struct scsi_mode_hdr_6 *)ctsio->kern_data_ptr; 6731 6732 header->datalen = MIN(total_len - 1, 254); 6733 if (control_dev == 0) { 6734 header->dev_specific = 0x10; /* DPOFUA */ 6735 if ((lun->be_lun->flags & CTL_LUN_FLAG_READONLY) || 6736 (lun->mode_pages.control_page[CTL_PAGE_CURRENT] 6737 .eca_and_aen & SCP_SWP) != 0) 6738 header->dev_specific |= 0x80; /* WP */ 6739 } 6740 if (dbd) 6741 header->block_descr_len = 0; 6742 else 6743 header->block_descr_len = 6744 sizeof(struct scsi_mode_block_descr); 6745 block_desc = (struct scsi_mode_block_descr *)&header[1]; 6746 break; 6747 } 6748 case MODE_SENSE_10: { 6749 struct scsi_mode_hdr_10 *header; 6750 int datalen; 6751 6752 header = (struct scsi_mode_hdr_10 *)ctsio->kern_data_ptr; 6753 6754 datalen = MIN(total_len - 2, 65533); 6755 scsi_ulto2b(datalen, header->datalen); 6756 if (control_dev == 0) { 6757 header->dev_specific = 0x10; /* DPOFUA */ 6758 if ((lun->be_lun->flags & CTL_LUN_FLAG_READONLY) || 6759 (lun->mode_pages.control_page[CTL_PAGE_CURRENT] 6760 .eca_and_aen & SCP_SWP) != 0) 6761 header->dev_specific |= 0x80; /* WP */ 6762 } 6763 if (dbd) 6764 scsi_ulto2b(0, header->block_descr_len); 6765 else 6766 scsi_ulto2b(sizeof(struct scsi_mode_block_descr), 6767 header->block_descr_len); 6768 block_desc = (struct scsi_mode_block_descr *)&header[1]; 6769 break; 6770 } 6771 default: 6772 panic("invalid CDB type %#x", ctsio->cdb[0]); 6773 break; /* NOTREACHED */ 6774 } 6775 6776 /* 6777 * If we've got a disk, use its blocksize in the block 6778 * descriptor. Otherwise, just set it to 0. 6779 */ 6780 if (dbd == 0) { 6781 if (control_dev == 0) 6782 scsi_ulto3b(lun->be_lun->blocksize, 6783 block_desc->block_len); 6784 else 6785 scsi_ulto3b(0, block_desc->block_len); 6786 } 6787 6788 switch (page_code) { 6789 case SMS_ALL_PAGES_PAGE: { 6790 int i, data_used; 6791 6792 data_used = header_len; 6793 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6794 struct ctl_page_index *page_index; 6795 6796 page_index = &lun->mode_pages.index[i]; 6797 6798 if ((control_dev != 0) 6799 && (page_index->page_flags & 6800 CTL_PAGE_FLAG_DISK_ONLY)) 6801 continue; 6802 6803 /* 6804 * We don't use this subpage if the user didn't 6805 * request all subpages. We already checked (above) 6806 * to make sure the user only specified a subpage 6807 * of 0 or 0xff in the SMS_ALL_PAGES_PAGE case. 6808 */ 6809 if ((page_index->subpage != 0) 6810 && (subpage == SMS_SUBPAGE_PAGE_0)) 6811 continue; 6812 6813 /* 6814 * Call the handler, if it exists, to update the 6815 * page to the latest values. 6816 */ 6817 if (page_index->sense_handler != NULL) 6818 page_index->sense_handler(ctsio, page_index,pc); 6819 6820 memcpy(ctsio->kern_data_ptr + data_used, 6821 page_index->page_data + 6822 (page_index->page_len * pc), 6823 page_index->page_len); 6824 data_used += page_index->page_len; 6825 } 6826 break; 6827 } 6828 default: { 6829 int i, data_used; 6830 6831 data_used = header_len; 6832 6833 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6834 struct ctl_page_index *page_index; 6835 6836 page_index = &lun->mode_pages.index[i]; 6837 6838 /* Look for the right page code */ 6839 if ((page_index->page_code & SMPH_PC_MASK) != page_code) 6840 continue; 6841 6842 /* Look for the right subpage or the subpage wildcard*/ 6843 if ((page_index->subpage != subpage) 6844 && (subpage != SMS_SUBPAGE_ALL)) 6845 continue; 6846 6847 /* Make sure the page is supported for this dev type */ 6848 if ((control_dev != 0) 6849 && (page_index->page_flags & 6850 CTL_PAGE_FLAG_DISK_ONLY)) 6851 continue; 6852 6853 /* 6854 * Call the handler, if it exists, to update the 6855 * page to the latest values. 6856 */ 6857 if (page_index->sense_handler != NULL) 6858 page_index->sense_handler(ctsio, page_index,pc); 6859 6860 memcpy(ctsio->kern_data_ptr + data_used, 6861 page_index->page_data + 6862 (page_index->page_len * pc), 6863 page_index->page_len); 6864 data_used += page_index->page_len; 6865 } 6866 break; 6867 } 6868 } 6869 6870 ctl_set_success(ctsio); 6871 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6872 ctsio->be_move_done = ctl_config_move_done; 6873 ctl_datamove((union ctl_io *)ctsio); 6874 return (CTL_RETVAL_COMPLETE); 6875} 6876 6877int 6878ctl_lbp_log_sense_handler(struct ctl_scsiio *ctsio, 6879 struct ctl_page_index *page_index, 6880 int pc) 6881{ 6882 struct ctl_lun *lun; 6883 struct scsi_log_param_header *phdr; 6884 uint8_t *data; 6885 uint64_t val; 6886 6887 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6888 data = page_index->page_data; 6889 6890 if (lun->backend->lun_attr != NULL && 6891 (val = lun->backend->lun_attr(lun->be_lun->be_lun, "blocksavail")) 6892 != UINT64_MAX) { 6893 phdr = (struct scsi_log_param_header *)data; 6894 scsi_ulto2b(0x0001, phdr->param_code); 6895 phdr->param_control = SLP_LBIN | SLP_LP; 6896 phdr->param_len = 8; 6897 data = (uint8_t *)(phdr + 1); 6898 scsi_ulto4b(val >> CTL_LBP_EXPONENT, data); 6899 data[4] = 0x02; /* per-pool */ 6900 data += phdr->param_len; 6901 } 6902 6903 if (lun->backend->lun_attr != NULL && 6904 (val = lun->backend->lun_attr(lun->be_lun->be_lun, "blocksused")) 6905 != UINT64_MAX) { 6906 phdr = (struct scsi_log_param_header *)data; 6907 scsi_ulto2b(0x0002, phdr->param_code); 6908 phdr->param_control = SLP_LBIN | SLP_LP; 6909 phdr->param_len = 8; 6910 data = (uint8_t *)(phdr + 1); 6911 scsi_ulto4b(val >> CTL_LBP_EXPONENT, data); 6912 data[4] = 0x01; /* per-LUN */ 6913 data += phdr->param_len; 6914 } 6915 6916 if (lun->backend->lun_attr != NULL && 6917 (val = lun->backend->lun_attr(lun->be_lun->be_lun, "poolblocksavail")) 6918 != UINT64_MAX) { 6919 phdr = (struct scsi_log_param_header *)data; 6920 scsi_ulto2b(0x00f1, phdr->param_code); 6921 phdr->param_control = SLP_LBIN | SLP_LP; 6922 phdr->param_len = 8; 6923 data = (uint8_t *)(phdr + 1); 6924 scsi_ulto4b(val >> CTL_LBP_EXPONENT, data); 6925 data[4] = 0x02; /* per-pool */ 6926 data += phdr->param_len; 6927 } 6928 6929 if (lun->backend->lun_attr != NULL && 6930 (val = lun->backend->lun_attr(lun->be_lun->be_lun, "poolblocksused")) 6931 != UINT64_MAX) { 6932 phdr = (struct scsi_log_param_header *)data; 6933 scsi_ulto2b(0x00f2, phdr->param_code); 6934 phdr->param_control = SLP_LBIN | SLP_LP; 6935 phdr->param_len = 8; 6936 data = (uint8_t *)(phdr + 1); 6937 scsi_ulto4b(val >> CTL_LBP_EXPONENT, data); 6938 data[4] = 0x02; /* per-pool */ 6939 data += phdr->param_len; 6940 } 6941 6942 page_index->page_len = data - page_index->page_data; 6943 return (0); 6944} 6945 6946int 6947ctl_sap_log_sense_handler(struct ctl_scsiio *ctsio, 6948 struct ctl_page_index *page_index, 6949 int pc) 6950{ 6951 struct ctl_lun *lun; 6952 struct stat_page *data; 6953 uint64_t rn, wn, rb, wb; 6954 struct bintime rt, wt; 6955 int i; 6956 6957 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6958 data = (struct stat_page *)page_index->page_data; 6959 6960 scsi_ulto2b(SLP_SAP, data->sap.hdr.param_code); 6961 data->sap.hdr.param_control = SLP_LBIN; 6962 data->sap.hdr.param_len = sizeof(struct scsi_log_stat_and_perf) - 6963 sizeof(struct scsi_log_param_header); 6964 rn = wn = rb = wb = 0; 6965 bintime_clear(&rt); 6966 bintime_clear(&wt); 6967 for (i = 0; i < CTL_MAX_PORTS; i++) { 6968 rn += lun->stats.ports[i].operations[CTL_STATS_READ]; 6969 wn += lun->stats.ports[i].operations[CTL_STATS_WRITE]; 6970 rb += lun->stats.ports[i].bytes[CTL_STATS_READ]; 6971 wb += lun->stats.ports[i].bytes[CTL_STATS_WRITE]; 6972 bintime_add(&rt, &lun->stats.ports[i].time[CTL_STATS_READ]); 6973 bintime_add(&wt, &lun->stats.ports[i].time[CTL_STATS_WRITE]); 6974 } 6975 scsi_u64to8b(rn, data->sap.read_num); 6976 scsi_u64to8b(wn, data->sap.write_num); 6977 if (lun->stats.blocksize > 0) { 6978 scsi_u64to8b(wb / lun->stats.blocksize, 6979 data->sap.recvieved_lba); 6980 scsi_u64to8b(rb / lun->stats.blocksize, 6981 data->sap.transmitted_lba); 6982 } 6983 scsi_u64to8b((uint64_t)rt.sec * 1000 + rt.frac / (UINT64_MAX / 1000), 6984 data->sap.read_int); 6985 scsi_u64to8b((uint64_t)wt.sec * 1000 + wt.frac / (UINT64_MAX / 1000), 6986 data->sap.write_int); 6987 scsi_u64to8b(0, data->sap.weighted_num); 6988 scsi_u64to8b(0, data->sap.weighted_int); 6989 scsi_ulto2b(SLP_IT, data->it.hdr.param_code); 6990 data->it.hdr.param_control = SLP_LBIN; 6991 data->it.hdr.param_len = sizeof(struct scsi_log_idle_time) - 6992 sizeof(struct scsi_log_param_header); 6993#ifdef CTL_TIME_IO 6994 scsi_u64to8b(lun->idle_time / SBT_1MS, data->it.idle_int); 6995#endif 6996 scsi_ulto2b(SLP_TI, data->ti.hdr.param_code); 6997 data->it.hdr.param_control = SLP_LBIN; 6998 data->ti.hdr.param_len = sizeof(struct scsi_log_time_interval) - 6999 sizeof(struct scsi_log_param_header); 7000 scsi_ulto4b(3, data->ti.exponent); 7001 scsi_ulto4b(1, data->ti.integer); 7002 7003 page_index->page_len = sizeof(*data); 7004 return (0); 7005} 7006 7007int 7008ctl_log_sense(struct ctl_scsiio *ctsio) 7009{ 7010 struct ctl_lun *lun; 7011 int i, pc, page_code, subpage; 7012 int alloc_len, total_len; 7013 struct ctl_page_index *page_index; 7014 struct scsi_log_sense *cdb; 7015 struct scsi_log_header *header; 7016 7017 CTL_DEBUG_PRINT(("ctl_log_sense\n")); 7018 7019 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7020 cdb = (struct scsi_log_sense *)ctsio->cdb; 7021 pc = (cdb->page & SLS_PAGE_CTRL_MASK) >> 6; 7022 page_code = cdb->page & SLS_PAGE_CODE; 7023 subpage = cdb->subpage; 7024 alloc_len = scsi_2btoul(cdb->length); 7025 7026 page_index = NULL; 7027 for (i = 0; i < CTL_NUM_LOG_PAGES; i++) { 7028 page_index = &lun->log_pages.index[i]; 7029 7030 /* Look for the right page code */ 7031 if ((page_index->page_code & SL_PAGE_CODE) != page_code) 7032 continue; 7033 7034 /* Look for the right subpage or the subpage wildcard*/ 7035 if (page_index->subpage != subpage) 7036 continue; 7037 7038 break; 7039 } 7040 if (i >= CTL_NUM_LOG_PAGES) { 7041 ctl_set_invalid_field(ctsio, 7042 /*sks_valid*/ 1, 7043 /*command*/ 1, 7044 /*field*/ 2, 7045 /*bit_valid*/ 0, 7046 /*bit*/ 0); 7047 ctl_done((union ctl_io *)ctsio); 7048 return (CTL_RETVAL_COMPLETE); 7049 } 7050 7051 total_len = sizeof(struct scsi_log_header) + page_index->page_len; 7052 7053 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7054 ctsio->kern_sg_entries = 0; 7055 ctsio->kern_data_resid = 0; 7056 ctsio->kern_rel_offset = 0; 7057 if (total_len < alloc_len) { 7058 ctsio->residual = alloc_len - total_len; 7059 ctsio->kern_data_len = total_len; 7060 ctsio->kern_total_len = total_len; 7061 } else { 7062 ctsio->residual = 0; 7063 ctsio->kern_data_len = alloc_len; 7064 ctsio->kern_total_len = alloc_len; 7065 } 7066 7067 header = (struct scsi_log_header *)ctsio->kern_data_ptr; 7068 header->page = page_index->page_code; 7069 if (page_index->subpage) { 7070 header->page |= SL_SPF; 7071 header->subpage = page_index->subpage; 7072 } 7073 scsi_ulto2b(page_index->page_len, header->datalen); 7074 7075 /* 7076 * Call the handler, if it exists, to update the 7077 * page to the latest values. 7078 */ 7079 if (page_index->sense_handler != NULL) 7080 page_index->sense_handler(ctsio, page_index, pc); 7081 7082 memcpy(header + 1, page_index->page_data, page_index->page_len); 7083 7084 ctl_set_success(ctsio); 7085 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7086 ctsio->be_move_done = ctl_config_move_done; 7087 ctl_datamove((union ctl_io *)ctsio); 7088 return (CTL_RETVAL_COMPLETE); 7089} 7090 7091int 7092ctl_read_capacity(struct ctl_scsiio *ctsio) 7093{ 7094 struct scsi_read_capacity *cdb; 7095 struct scsi_read_capacity_data *data; 7096 struct ctl_lun *lun; 7097 uint32_t lba; 7098 7099 CTL_DEBUG_PRINT(("ctl_read_capacity\n")); 7100 7101 cdb = (struct scsi_read_capacity *)ctsio->cdb; 7102 7103 lba = scsi_4btoul(cdb->addr); 7104 if (((cdb->pmi & SRC_PMI) == 0) 7105 && (lba != 0)) { 7106 ctl_set_invalid_field(/*ctsio*/ ctsio, 7107 /*sks_valid*/ 1, 7108 /*command*/ 1, 7109 /*field*/ 2, 7110 /*bit_valid*/ 0, 7111 /*bit*/ 0); 7112 ctl_done((union ctl_io *)ctsio); 7113 return (CTL_RETVAL_COMPLETE); 7114 } 7115 7116 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7117 7118 ctsio->kern_data_ptr = malloc(sizeof(*data), M_CTL, M_WAITOK | M_ZERO); 7119 data = (struct scsi_read_capacity_data *)ctsio->kern_data_ptr; 7120 ctsio->residual = 0; 7121 ctsio->kern_data_len = sizeof(*data); 7122 ctsio->kern_total_len = sizeof(*data); 7123 ctsio->kern_data_resid = 0; 7124 ctsio->kern_rel_offset = 0; 7125 ctsio->kern_sg_entries = 0; 7126 7127 /* 7128 * If the maximum LBA is greater than 0xfffffffe, the user must 7129 * issue a SERVICE ACTION IN (16) command, with the read capacity 7130 * serivce action set. 7131 */ 7132 if (lun->be_lun->maxlba > 0xfffffffe) 7133 scsi_ulto4b(0xffffffff, data->addr); 7134 else 7135 scsi_ulto4b(lun->be_lun->maxlba, data->addr); 7136 7137 /* 7138 * XXX KDM this may not be 512 bytes... 7139 */ 7140 scsi_ulto4b(lun->be_lun->blocksize, data->length); 7141 7142 ctl_set_success(ctsio); 7143 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7144 ctsio->be_move_done = ctl_config_move_done; 7145 ctl_datamove((union ctl_io *)ctsio); 7146 return (CTL_RETVAL_COMPLETE); 7147} 7148 7149int 7150ctl_read_capacity_16(struct ctl_scsiio *ctsio) 7151{ 7152 struct scsi_read_capacity_16 *cdb; 7153 struct scsi_read_capacity_data_long *data; 7154 struct ctl_lun *lun; 7155 uint64_t lba; 7156 uint32_t alloc_len; 7157 7158 CTL_DEBUG_PRINT(("ctl_read_capacity_16\n")); 7159 7160 cdb = (struct scsi_read_capacity_16 *)ctsio->cdb; 7161 7162 alloc_len = scsi_4btoul(cdb->alloc_len); 7163 lba = scsi_8btou64(cdb->addr); 7164 7165 if ((cdb->reladr & SRC16_PMI) 7166 && (lba != 0)) { 7167 ctl_set_invalid_field(/*ctsio*/ ctsio, 7168 /*sks_valid*/ 1, 7169 /*command*/ 1, 7170 /*field*/ 2, 7171 /*bit_valid*/ 0, 7172 /*bit*/ 0); 7173 ctl_done((union ctl_io *)ctsio); 7174 return (CTL_RETVAL_COMPLETE); 7175 } 7176 7177 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7178 7179 ctsio->kern_data_ptr = malloc(sizeof(*data), M_CTL, M_WAITOK | M_ZERO); 7180 data = (struct scsi_read_capacity_data_long *)ctsio->kern_data_ptr; 7181 7182 if (sizeof(*data) < alloc_len) { 7183 ctsio->residual = alloc_len - sizeof(*data); 7184 ctsio->kern_data_len = sizeof(*data); 7185 ctsio->kern_total_len = sizeof(*data); 7186 } else { 7187 ctsio->residual = 0; 7188 ctsio->kern_data_len = alloc_len; 7189 ctsio->kern_total_len = alloc_len; 7190 } 7191 ctsio->kern_data_resid = 0; 7192 ctsio->kern_rel_offset = 0; 7193 ctsio->kern_sg_entries = 0; 7194 7195 scsi_u64to8b(lun->be_lun->maxlba, data->addr); 7196 /* XXX KDM this may not be 512 bytes... */ 7197 scsi_ulto4b(lun->be_lun->blocksize, data->length); 7198 data->prot_lbppbe = lun->be_lun->pblockexp & SRC16_LBPPBE; 7199 scsi_ulto2b(lun->be_lun->pblockoff & SRC16_LALBA_A, data->lalba_lbp); 7200 if (lun->be_lun->flags & CTL_LUN_FLAG_UNMAP) 7201 data->lalba_lbp[0] |= SRC16_LBPME | SRC16_LBPRZ; 7202 7203 ctl_set_success(ctsio); 7204 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7205 ctsio->be_move_done = ctl_config_move_done; 7206 ctl_datamove((union ctl_io *)ctsio); 7207 return (CTL_RETVAL_COMPLETE); 7208} 7209 7210int 7211ctl_get_lba_status(struct ctl_scsiio *ctsio) 7212{ 7213 struct scsi_get_lba_status *cdb; 7214 struct scsi_get_lba_status_data *data; 7215 struct ctl_lun *lun; 7216 struct ctl_lba_len_flags *lbalen; 7217 uint64_t lba; 7218 uint32_t alloc_len, total_len; 7219 int retval; 7220 7221 CTL_DEBUG_PRINT(("ctl_get_lba_status\n")); 7222 7223 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7224 cdb = (struct scsi_get_lba_status *)ctsio->cdb; 7225 lba = scsi_8btou64(cdb->addr); 7226 alloc_len = scsi_4btoul(cdb->alloc_len); 7227 7228 if (lba > lun->be_lun->maxlba) { 7229 ctl_set_lba_out_of_range(ctsio); 7230 ctl_done((union ctl_io *)ctsio); 7231 return (CTL_RETVAL_COMPLETE); 7232 } 7233 7234 total_len = sizeof(*data) + sizeof(data->descr[0]); 7235 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7236 data = (struct scsi_get_lba_status_data *)ctsio->kern_data_ptr; 7237 7238 if (total_len < alloc_len) { 7239 ctsio->residual = alloc_len - total_len; 7240 ctsio->kern_data_len = total_len; 7241 ctsio->kern_total_len = total_len; 7242 } else { 7243 ctsio->residual = 0; 7244 ctsio->kern_data_len = alloc_len; 7245 ctsio->kern_total_len = alloc_len; 7246 } 7247 ctsio->kern_data_resid = 0; 7248 ctsio->kern_rel_offset = 0; 7249 ctsio->kern_sg_entries = 0; 7250 7251 /* Fill dummy data in case backend can't tell anything. */ 7252 scsi_ulto4b(4 + sizeof(data->descr[0]), data->length); 7253 scsi_u64to8b(lba, data->descr[0].addr); 7254 scsi_ulto4b(MIN(UINT32_MAX, lun->be_lun->maxlba + 1 - lba), 7255 data->descr[0].length); 7256 data->descr[0].status = 0; /* Mapped or unknown. */ 7257 7258 ctl_set_success(ctsio); 7259 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7260 ctsio->be_move_done = ctl_config_move_done; 7261 7262 lbalen = (struct ctl_lba_len_flags *)&ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 7263 lbalen->lba = lba; 7264 lbalen->len = total_len; 7265 lbalen->flags = 0; 7266 retval = lun->backend->config_read((union ctl_io *)ctsio); 7267 return (CTL_RETVAL_COMPLETE); 7268} 7269 7270int 7271ctl_read_defect(struct ctl_scsiio *ctsio) 7272{ 7273 struct scsi_read_defect_data_10 *ccb10; 7274 struct scsi_read_defect_data_12 *ccb12; 7275 struct scsi_read_defect_data_hdr_10 *data10; 7276 struct scsi_read_defect_data_hdr_12 *data12; 7277 uint32_t alloc_len, data_len; 7278 uint8_t format; 7279 7280 CTL_DEBUG_PRINT(("ctl_read_defect\n")); 7281 7282 if (ctsio->cdb[0] == READ_DEFECT_DATA_10) { 7283 ccb10 = (struct scsi_read_defect_data_10 *)&ctsio->cdb; 7284 format = ccb10->format; 7285 alloc_len = scsi_2btoul(ccb10->alloc_length); 7286 data_len = sizeof(*data10); 7287 } else { 7288 ccb12 = (struct scsi_read_defect_data_12 *)&ctsio->cdb; 7289 format = ccb12->format; 7290 alloc_len = scsi_4btoul(ccb12->alloc_length); 7291 data_len = sizeof(*data12); 7292 } 7293 if (alloc_len == 0) { 7294 ctl_set_success(ctsio); 7295 ctl_done((union ctl_io *)ctsio); 7296 return (CTL_RETVAL_COMPLETE); 7297 } 7298 7299 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 7300 if (data_len < alloc_len) { 7301 ctsio->residual = alloc_len - data_len; 7302 ctsio->kern_data_len = data_len; 7303 ctsio->kern_total_len = data_len; 7304 } else { 7305 ctsio->residual = 0; 7306 ctsio->kern_data_len = alloc_len; 7307 ctsio->kern_total_len = alloc_len; 7308 } 7309 ctsio->kern_data_resid = 0; 7310 ctsio->kern_rel_offset = 0; 7311 ctsio->kern_sg_entries = 0; 7312 7313 if (ctsio->cdb[0] == READ_DEFECT_DATA_10) { 7314 data10 = (struct scsi_read_defect_data_hdr_10 *) 7315 ctsio->kern_data_ptr; 7316 data10->format = format; 7317 scsi_ulto2b(0, data10->length); 7318 } else { 7319 data12 = (struct scsi_read_defect_data_hdr_12 *) 7320 ctsio->kern_data_ptr; 7321 data12->format = format; 7322 scsi_ulto2b(0, data12->generation); 7323 scsi_ulto4b(0, data12->length); 7324 } 7325 7326 ctl_set_success(ctsio); 7327 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7328 ctsio->be_move_done = ctl_config_move_done; 7329 ctl_datamove((union ctl_io *)ctsio); 7330 return (CTL_RETVAL_COMPLETE); 7331} 7332 7333int 7334ctl_report_tagret_port_groups(struct ctl_scsiio *ctsio) 7335{ 7336 struct scsi_maintenance_in *cdb; 7337 int retval; 7338 int alloc_len, ext, total_len = 0, g, pc, pg, gs, os; 7339 int num_target_port_groups, num_target_ports; 7340 struct ctl_lun *lun; 7341 struct ctl_softc *softc; 7342 struct ctl_port *port; 7343 struct scsi_target_group_data *rtg_ptr; 7344 struct scsi_target_group_data_extended *rtg_ext_ptr; 7345 struct scsi_target_port_group_descriptor *tpg_desc; 7346 7347 CTL_DEBUG_PRINT(("ctl_report_tagret_port_groups\n")); 7348 7349 cdb = (struct scsi_maintenance_in *)ctsio->cdb; 7350 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7351 softc = lun->ctl_softc; 7352 7353 retval = CTL_RETVAL_COMPLETE; 7354 7355 switch (cdb->byte2 & STG_PDF_MASK) { 7356 case STG_PDF_LENGTH: 7357 ext = 0; 7358 break; 7359 case STG_PDF_EXTENDED: 7360 ext = 1; 7361 break; 7362 default: 7363 ctl_set_invalid_field(/*ctsio*/ ctsio, 7364 /*sks_valid*/ 1, 7365 /*command*/ 1, 7366 /*field*/ 2, 7367 /*bit_valid*/ 1, 7368 /*bit*/ 5); 7369 ctl_done((union ctl_io *)ctsio); 7370 return(retval); 7371 } 7372 7373 if (softc->is_single) 7374 num_target_port_groups = 1; 7375 else 7376 num_target_port_groups = NUM_TARGET_PORT_GROUPS; 7377 num_target_ports = 0; 7378 mtx_lock(&softc->ctl_lock); 7379 STAILQ_FOREACH(port, &softc->port_list, links) { 7380 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 7381 continue; 7382 if (ctl_lun_map_to_port(port, lun->lun) >= CTL_MAX_LUNS) 7383 continue; 7384 num_target_ports++; 7385 } 7386 mtx_unlock(&softc->ctl_lock); 7387 7388 if (ext) 7389 total_len = sizeof(struct scsi_target_group_data_extended); 7390 else 7391 total_len = sizeof(struct scsi_target_group_data); 7392 total_len += sizeof(struct scsi_target_port_group_descriptor) * 7393 num_target_port_groups + 7394 sizeof(struct scsi_target_port_descriptor) * num_target_ports; 7395 7396 alloc_len = scsi_4btoul(cdb->length); 7397 7398 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7399 7400 ctsio->kern_sg_entries = 0; 7401 7402 if (total_len < alloc_len) { 7403 ctsio->residual = alloc_len - total_len; 7404 ctsio->kern_data_len = total_len; 7405 ctsio->kern_total_len = total_len; 7406 } else { 7407 ctsio->residual = 0; 7408 ctsio->kern_data_len = alloc_len; 7409 ctsio->kern_total_len = alloc_len; 7410 } 7411 ctsio->kern_data_resid = 0; 7412 ctsio->kern_rel_offset = 0; 7413 7414 if (ext) { 7415 rtg_ext_ptr = (struct scsi_target_group_data_extended *) 7416 ctsio->kern_data_ptr; 7417 scsi_ulto4b(total_len - 4, rtg_ext_ptr->length); 7418 rtg_ext_ptr->format_type = 0x10; 7419 rtg_ext_ptr->implicit_transition_time = 0; 7420 tpg_desc = &rtg_ext_ptr->groups[0]; 7421 } else { 7422 rtg_ptr = (struct scsi_target_group_data *) 7423 ctsio->kern_data_ptr; 7424 scsi_ulto4b(total_len - 4, rtg_ptr->length); 7425 tpg_desc = &rtg_ptr->groups[0]; 7426 } 7427 7428 mtx_lock(&softc->ctl_lock); 7429 pg = softc->port_min / softc->port_cnt; 7430 if (softc->ha_link == CTL_HA_LINK_OFFLINE) 7431 gs = TPG_ASYMMETRIC_ACCESS_UNAVAILABLE; 7432 else if (softc->ha_link == CTL_HA_LINK_UNKNOWN) 7433 gs = TPG_ASYMMETRIC_ACCESS_TRANSITIONING; 7434 else if (softc->ha_mode == CTL_HA_MODE_ACT_STBY) 7435 gs = TPG_ASYMMETRIC_ACCESS_STANDBY; 7436 else 7437 gs = TPG_ASYMMETRIC_ACCESS_NONOPTIMIZED; 7438 if (lun->flags & CTL_LUN_PRIMARY_SC) { 7439 os = gs; 7440 gs = TPG_ASYMMETRIC_ACCESS_OPTIMIZED; 7441 } else 7442 os = TPG_ASYMMETRIC_ACCESS_OPTIMIZED; 7443 for (g = 0; g < num_target_port_groups; g++) { 7444 tpg_desc->pref_state = (g == pg) ? gs : os; 7445 tpg_desc->support = TPG_AO_SUP | TPG_AN_SUP | TPG_S_SUP | 7446 TPG_U_SUP | TPG_T_SUP; 7447 scsi_ulto2b(g + 1, tpg_desc->target_port_group); 7448 tpg_desc->status = TPG_IMPLICIT; 7449 pc = 0; 7450 STAILQ_FOREACH(port, &softc->port_list, links) { 7451 if (port->targ_port < g * softc->port_cnt || 7452 port->targ_port >= (g + 1) * softc->port_cnt) 7453 continue; 7454 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 7455 continue; 7456 if (ctl_lun_map_to_port(port, lun->lun) >= CTL_MAX_LUNS) 7457 continue; 7458 scsi_ulto2b(port->targ_port, tpg_desc->descriptors[pc]. 7459 relative_target_port_identifier); 7460 pc++; 7461 } 7462 tpg_desc->target_port_count = pc; 7463 tpg_desc = (struct scsi_target_port_group_descriptor *) 7464 &tpg_desc->descriptors[pc]; 7465 } 7466 mtx_unlock(&softc->ctl_lock); 7467 7468 ctl_set_success(ctsio); 7469 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7470 ctsio->be_move_done = ctl_config_move_done; 7471 ctl_datamove((union ctl_io *)ctsio); 7472 return(retval); 7473} 7474 7475int 7476ctl_report_supported_opcodes(struct ctl_scsiio *ctsio) 7477{ 7478 struct ctl_lun *lun; 7479 struct scsi_report_supported_opcodes *cdb; 7480 const struct ctl_cmd_entry *entry, *sentry; 7481 struct scsi_report_supported_opcodes_all *all; 7482 struct scsi_report_supported_opcodes_descr *descr; 7483 struct scsi_report_supported_opcodes_one *one; 7484 int retval; 7485 int alloc_len, total_len; 7486 int opcode, service_action, i, j, num; 7487 7488 CTL_DEBUG_PRINT(("ctl_report_supported_opcodes\n")); 7489 7490 cdb = (struct scsi_report_supported_opcodes *)ctsio->cdb; 7491 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7492 7493 retval = CTL_RETVAL_COMPLETE; 7494 7495 opcode = cdb->requested_opcode; 7496 service_action = scsi_2btoul(cdb->requested_service_action); 7497 switch (cdb->options & RSO_OPTIONS_MASK) { 7498 case RSO_OPTIONS_ALL: 7499 num = 0; 7500 for (i = 0; i < 256; i++) { 7501 entry = &ctl_cmd_table[i]; 7502 if (entry->flags & CTL_CMD_FLAG_SA5) { 7503 for (j = 0; j < 32; j++) { 7504 sentry = &((const struct ctl_cmd_entry *) 7505 entry->execute)[j]; 7506 if (ctl_cmd_applicable( 7507 lun->be_lun->lun_type, sentry)) 7508 num++; 7509 } 7510 } else { 7511 if (ctl_cmd_applicable(lun->be_lun->lun_type, 7512 entry)) 7513 num++; 7514 } 7515 } 7516 total_len = sizeof(struct scsi_report_supported_opcodes_all) + 7517 num * sizeof(struct scsi_report_supported_opcodes_descr); 7518 break; 7519 case RSO_OPTIONS_OC: 7520 if (ctl_cmd_table[opcode].flags & CTL_CMD_FLAG_SA5) { 7521 ctl_set_invalid_field(/*ctsio*/ ctsio, 7522 /*sks_valid*/ 1, 7523 /*command*/ 1, 7524 /*field*/ 2, 7525 /*bit_valid*/ 1, 7526 /*bit*/ 2); 7527 ctl_done((union ctl_io *)ctsio); 7528 return (CTL_RETVAL_COMPLETE); 7529 } 7530 total_len = sizeof(struct scsi_report_supported_opcodes_one) + 32; 7531 break; 7532 case RSO_OPTIONS_OC_SA: 7533 if ((ctl_cmd_table[opcode].flags & CTL_CMD_FLAG_SA5) == 0 || 7534 service_action >= 32) { 7535 ctl_set_invalid_field(/*ctsio*/ ctsio, 7536 /*sks_valid*/ 1, 7537 /*command*/ 1, 7538 /*field*/ 2, 7539 /*bit_valid*/ 1, 7540 /*bit*/ 2); 7541 ctl_done((union ctl_io *)ctsio); 7542 return (CTL_RETVAL_COMPLETE); 7543 } 7544 total_len = sizeof(struct scsi_report_supported_opcodes_one) + 32; 7545 break; 7546 default: 7547 ctl_set_invalid_field(/*ctsio*/ ctsio, 7548 /*sks_valid*/ 1, 7549 /*command*/ 1, 7550 /*field*/ 2, 7551 /*bit_valid*/ 1, 7552 /*bit*/ 2); 7553 ctl_done((union ctl_io *)ctsio); 7554 return (CTL_RETVAL_COMPLETE); 7555 } 7556 7557 alloc_len = scsi_4btoul(cdb->length); 7558 7559 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7560 7561 ctsio->kern_sg_entries = 0; 7562 7563 if (total_len < alloc_len) { 7564 ctsio->residual = alloc_len - total_len; 7565 ctsio->kern_data_len = total_len; 7566 ctsio->kern_total_len = total_len; 7567 } else { 7568 ctsio->residual = 0; 7569 ctsio->kern_data_len = alloc_len; 7570 ctsio->kern_total_len = alloc_len; 7571 } 7572 ctsio->kern_data_resid = 0; 7573 ctsio->kern_rel_offset = 0; 7574 7575 switch (cdb->options & RSO_OPTIONS_MASK) { 7576 case RSO_OPTIONS_ALL: 7577 all = (struct scsi_report_supported_opcodes_all *) 7578 ctsio->kern_data_ptr; 7579 num = 0; 7580 for (i = 0; i < 256; i++) { 7581 entry = &ctl_cmd_table[i]; 7582 if (entry->flags & CTL_CMD_FLAG_SA5) { 7583 for (j = 0; j < 32; j++) { 7584 sentry = &((const struct ctl_cmd_entry *) 7585 entry->execute)[j]; 7586 if (!ctl_cmd_applicable( 7587 lun->be_lun->lun_type, sentry)) 7588 continue; 7589 descr = &all->descr[num++]; 7590 descr->opcode = i; 7591 scsi_ulto2b(j, descr->service_action); 7592 descr->flags = RSO_SERVACTV; 7593 scsi_ulto2b(sentry->length, 7594 descr->cdb_length); 7595 } 7596 } else { 7597 if (!ctl_cmd_applicable(lun->be_lun->lun_type, 7598 entry)) 7599 continue; 7600 descr = &all->descr[num++]; 7601 descr->opcode = i; 7602 scsi_ulto2b(0, descr->service_action); 7603 descr->flags = 0; 7604 scsi_ulto2b(entry->length, descr->cdb_length); 7605 } 7606 } 7607 scsi_ulto4b( 7608 num * sizeof(struct scsi_report_supported_opcodes_descr), 7609 all->length); 7610 break; 7611 case RSO_OPTIONS_OC: 7612 one = (struct scsi_report_supported_opcodes_one *) 7613 ctsio->kern_data_ptr; 7614 entry = &ctl_cmd_table[opcode]; 7615 goto fill_one; 7616 case RSO_OPTIONS_OC_SA: 7617 one = (struct scsi_report_supported_opcodes_one *) 7618 ctsio->kern_data_ptr; 7619 entry = &ctl_cmd_table[opcode]; 7620 entry = &((const struct ctl_cmd_entry *) 7621 entry->execute)[service_action]; 7622fill_one: 7623 if (ctl_cmd_applicable(lun->be_lun->lun_type, entry)) { 7624 one->support = 3; 7625 scsi_ulto2b(entry->length, one->cdb_length); 7626 one->cdb_usage[0] = opcode; 7627 memcpy(&one->cdb_usage[1], entry->usage, 7628 entry->length - 1); 7629 } else 7630 one->support = 1; 7631 break; 7632 } 7633 7634 ctl_set_success(ctsio); 7635 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7636 ctsio->be_move_done = ctl_config_move_done; 7637 ctl_datamove((union ctl_io *)ctsio); 7638 return(retval); 7639} 7640 7641int 7642ctl_report_supported_tmf(struct ctl_scsiio *ctsio) 7643{ 7644 struct scsi_report_supported_tmf *cdb; 7645 struct scsi_report_supported_tmf_data *data; 7646 int retval; 7647 int alloc_len, total_len; 7648 7649 CTL_DEBUG_PRINT(("ctl_report_supported_tmf\n")); 7650 7651 cdb = (struct scsi_report_supported_tmf *)ctsio->cdb; 7652 7653 retval = CTL_RETVAL_COMPLETE; 7654 7655 total_len = sizeof(struct scsi_report_supported_tmf_data); 7656 alloc_len = scsi_4btoul(cdb->length); 7657 7658 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7659 7660 ctsio->kern_sg_entries = 0; 7661 7662 if (total_len < alloc_len) { 7663 ctsio->residual = alloc_len - total_len; 7664 ctsio->kern_data_len = total_len; 7665 ctsio->kern_total_len = total_len; 7666 } else { 7667 ctsio->residual = 0; 7668 ctsio->kern_data_len = alloc_len; 7669 ctsio->kern_total_len = alloc_len; 7670 } 7671 ctsio->kern_data_resid = 0; 7672 ctsio->kern_rel_offset = 0; 7673 7674 data = (struct scsi_report_supported_tmf_data *)ctsio->kern_data_ptr; 7675 data->byte1 |= RST_ATS | RST_ATSS | RST_CTSS | RST_LURS | RST_QTS | 7676 RST_TRS; 7677 data->byte2 |= RST_QAES | RST_QTSS | RST_ITNRS; 7678 7679 ctl_set_success(ctsio); 7680 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7681 ctsio->be_move_done = ctl_config_move_done; 7682 ctl_datamove((union ctl_io *)ctsio); 7683 return (retval); 7684} 7685 7686int 7687ctl_report_timestamp(struct ctl_scsiio *ctsio) 7688{ 7689 struct scsi_report_timestamp *cdb; 7690 struct scsi_report_timestamp_data *data; 7691 struct timeval tv; 7692 int64_t timestamp; 7693 int retval; 7694 int alloc_len, total_len; 7695 7696 CTL_DEBUG_PRINT(("ctl_report_timestamp\n")); 7697 7698 cdb = (struct scsi_report_timestamp *)ctsio->cdb; 7699 7700 retval = CTL_RETVAL_COMPLETE; 7701 7702 total_len = sizeof(struct scsi_report_timestamp_data); 7703 alloc_len = scsi_4btoul(cdb->length); 7704 7705 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7706 7707 ctsio->kern_sg_entries = 0; 7708 7709 if (total_len < alloc_len) { 7710 ctsio->residual = alloc_len - total_len; 7711 ctsio->kern_data_len = total_len; 7712 ctsio->kern_total_len = total_len; 7713 } else { 7714 ctsio->residual = 0; 7715 ctsio->kern_data_len = alloc_len; 7716 ctsio->kern_total_len = alloc_len; 7717 } 7718 ctsio->kern_data_resid = 0; 7719 ctsio->kern_rel_offset = 0; 7720 7721 data = (struct scsi_report_timestamp_data *)ctsio->kern_data_ptr; 7722 scsi_ulto2b(sizeof(*data) - 2, data->length); 7723 data->origin = RTS_ORIG_OUTSIDE; 7724 getmicrotime(&tv); 7725 timestamp = (int64_t)tv.tv_sec * 1000 + tv.tv_usec / 1000; 7726 scsi_ulto4b(timestamp >> 16, data->timestamp); 7727 scsi_ulto2b(timestamp & 0xffff, &data->timestamp[4]); 7728 7729 ctl_set_success(ctsio); 7730 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7731 ctsio->be_move_done = ctl_config_move_done; 7732 ctl_datamove((union ctl_io *)ctsio); 7733 return (retval); 7734} 7735 7736int 7737ctl_persistent_reserve_in(struct ctl_scsiio *ctsio) 7738{ 7739 struct scsi_per_res_in *cdb; 7740 int alloc_len, total_len = 0; 7741 /* struct scsi_per_res_in_rsrv in_data; */ 7742 struct ctl_lun *lun; 7743 struct ctl_softc *softc; 7744 uint64_t key; 7745 7746 CTL_DEBUG_PRINT(("ctl_persistent_reserve_in\n")); 7747 7748 cdb = (struct scsi_per_res_in *)ctsio->cdb; 7749 7750 alloc_len = scsi_2btoul(cdb->length); 7751 7752 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7753 softc = lun->ctl_softc; 7754 7755retry: 7756 mtx_lock(&lun->lun_lock); 7757 switch (cdb->action) { 7758 case SPRI_RK: /* read keys */ 7759 total_len = sizeof(struct scsi_per_res_in_keys) + 7760 lun->pr_key_count * 7761 sizeof(struct scsi_per_res_key); 7762 break; 7763 case SPRI_RR: /* read reservation */ 7764 if (lun->flags & CTL_LUN_PR_RESERVED) 7765 total_len = sizeof(struct scsi_per_res_in_rsrv); 7766 else 7767 total_len = sizeof(struct scsi_per_res_in_header); 7768 break; 7769 case SPRI_RC: /* report capabilities */ 7770 total_len = sizeof(struct scsi_per_res_cap); 7771 break; 7772 case SPRI_RS: /* read full status */ 7773 total_len = sizeof(struct scsi_per_res_in_header) + 7774 (sizeof(struct scsi_per_res_in_full_desc) + 256) * 7775 lun->pr_key_count; 7776 break; 7777 default: 7778 panic("Invalid PR type %x", cdb->action); 7779 } 7780 mtx_unlock(&lun->lun_lock); 7781 7782 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7783 7784 if (total_len < alloc_len) { 7785 ctsio->residual = alloc_len - total_len; 7786 ctsio->kern_data_len = total_len; 7787 ctsio->kern_total_len = total_len; 7788 } else { 7789 ctsio->residual = 0; 7790 ctsio->kern_data_len = alloc_len; 7791 ctsio->kern_total_len = alloc_len; 7792 } 7793 7794 ctsio->kern_data_resid = 0; 7795 ctsio->kern_rel_offset = 0; 7796 ctsio->kern_sg_entries = 0; 7797 7798 mtx_lock(&lun->lun_lock); 7799 switch (cdb->action) { 7800 case SPRI_RK: { // read keys 7801 struct scsi_per_res_in_keys *res_keys; 7802 int i, key_count; 7803 7804 res_keys = (struct scsi_per_res_in_keys*)ctsio->kern_data_ptr; 7805 7806 /* 7807 * We had to drop the lock to allocate our buffer, which 7808 * leaves time for someone to come in with another 7809 * persistent reservation. (That is unlikely, though, 7810 * since this should be the only persistent reservation 7811 * command active right now.) 7812 */ 7813 if (total_len != (sizeof(struct scsi_per_res_in_keys) + 7814 (lun->pr_key_count * 7815 sizeof(struct scsi_per_res_key)))){ 7816 mtx_unlock(&lun->lun_lock); 7817 free(ctsio->kern_data_ptr, M_CTL); 7818 printf("%s: reservation length changed, retrying\n", 7819 __func__); 7820 goto retry; 7821 } 7822 7823 scsi_ulto4b(lun->PRGeneration, res_keys->header.generation); 7824 7825 scsi_ulto4b(sizeof(struct scsi_per_res_key) * 7826 lun->pr_key_count, res_keys->header.length); 7827 7828 for (i = 0, key_count = 0; i < CTL_MAX_INITIATORS; i++) { 7829 if ((key = ctl_get_prkey(lun, i)) == 0) 7830 continue; 7831 7832 /* 7833 * We used lun->pr_key_count to calculate the 7834 * size to allocate. If it turns out the number of 7835 * initiators with the registered flag set is 7836 * larger than that (i.e. they haven't been kept in 7837 * sync), we've got a problem. 7838 */ 7839 if (key_count >= lun->pr_key_count) { 7840#ifdef NEEDTOPORT 7841 csevent_log(CSC_CTL | CSC_SHELF_SW | 7842 CTL_PR_ERROR, 7843 csevent_LogType_Fault, 7844 csevent_AlertLevel_Yellow, 7845 csevent_FRU_ShelfController, 7846 csevent_FRU_Firmware, 7847 csevent_FRU_Unknown, 7848 "registered keys %d >= key " 7849 "count %d", key_count, 7850 lun->pr_key_count); 7851#endif 7852 key_count++; 7853 continue; 7854 } 7855 scsi_u64to8b(key, res_keys->keys[key_count].key); 7856 key_count++; 7857 } 7858 break; 7859 } 7860 case SPRI_RR: { // read reservation 7861 struct scsi_per_res_in_rsrv *res; 7862 int tmp_len, header_only; 7863 7864 res = (struct scsi_per_res_in_rsrv *)ctsio->kern_data_ptr; 7865 7866 scsi_ulto4b(lun->PRGeneration, res->header.generation); 7867 7868 if (lun->flags & CTL_LUN_PR_RESERVED) 7869 { 7870 tmp_len = sizeof(struct scsi_per_res_in_rsrv); 7871 scsi_ulto4b(sizeof(struct scsi_per_res_in_rsrv_data), 7872 res->header.length); 7873 header_only = 0; 7874 } else { 7875 tmp_len = sizeof(struct scsi_per_res_in_header); 7876 scsi_ulto4b(0, res->header.length); 7877 header_only = 1; 7878 } 7879 7880 /* 7881 * We had to drop the lock to allocate our buffer, which 7882 * leaves time for someone to come in with another 7883 * persistent reservation. (That is unlikely, though, 7884 * since this should be the only persistent reservation 7885 * command active right now.) 7886 */ 7887 if (tmp_len != total_len) { 7888 mtx_unlock(&lun->lun_lock); 7889 free(ctsio->kern_data_ptr, M_CTL); 7890 printf("%s: reservation status changed, retrying\n", 7891 __func__); 7892 goto retry; 7893 } 7894 7895 /* 7896 * No reservation held, so we're done. 7897 */ 7898 if (header_only != 0) 7899 break; 7900 7901 /* 7902 * If the registration is an All Registrants type, the key 7903 * is 0, since it doesn't really matter. 7904 */ 7905 if (lun->pr_res_idx != CTL_PR_ALL_REGISTRANTS) { 7906 scsi_u64to8b(ctl_get_prkey(lun, lun->pr_res_idx), 7907 res->data.reservation); 7908 } 7909 res->data.scopetype = lun->res_type; 7910 break; 7911 } 7912 case SPRI_RC: //report capabilities 7913 { 7914 struct scsi_per_res_cap *res_cap; 7915 uint16_t type_mask; 7916 7917 res_cap = (struct scsi_per_res_cap *)ctsio->kern_data_ptr; 7918 scsi_ulto2b(sizeof(*res_cap), res_cap->length); 7919 res_cap->flags2 |= SPRI_TMV | SPRI_ALLOW_5; 7920 type_mask = SPRI_TM_WR_EX_AR | 7921 SPRI_TM_EX_AC_RO | 7922 SPRI_TM_WR_EX_RO | 7923 SPRI_TM_EX_AC | 7924 SPRI_TM_WR_EX | 7925 SPRI_TM_EX_AC_AR; 7926 scsi_ulto2b(type_mask, res_cap->type_mask); 7927 break; 7928 } 7929 case SPRI_RS: { // read full status 7930 struct scsi_per_res_in_full *res_status; 7931 struct scsi_per_res_in_full_desc *res_desc; 7932 struct ctl_port *port; 7933 int i, len; 7934 7935 res_status = (struct scsi_per_res_in_full*)ctsio->kern_data_ptr; 7936 7937 /* 7938 * We had to drop the lock to allocate our buffer, which 7939 * leaves time for someone to come in with another 7940 * persistent reservation. (That is unlikely, though, 7941 * since this should be the only persistent reservation 7942 * command active right now.) 7943 */ 7944 if (total_len < (sizeof(struct scsi_per_res_in_header) + 7945 (sizeof(struct scsi_per_res_in_full_desc) + 256) * 7946 lun->pr_key_count)){ 7947 mtx_unlock(&lun->lun_lock); 7948 free(ctsio->kern_data_ptr, M_CTL); 7949 printf("%s: reservation length changed, retrying\n", 7950 __func__); 7951 goto retry; 7952 } 7953 7954 scsi_ulto4b(lun->PRGeneration, res_status->header.generation); 7955 7956 res_desc = &res_status->desc[0]; 7957 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 7958 if ((key = ctl_get_prkey(lun, i)) == 0) 7959 continue; 7960 7961 scsi_u64to8b(key, res_desc->res_key.key); 7962 if ((lun->flags & CTL_LUN_PR_RESERVED) && 7963 (lun->pr_res_idx == i || 7964 lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS)) { 7965 res_desc->flags = SPRI_FULL_R_HOLDER; 7966 res_desc->scopetype = lun->res_type; 7967 } 7968 scsi_ulto2b(i / CTL_MAX_INIT_PER_PORT, 7969 res_desc->rel_trgt_port_id); 7970 len = 0; 7971 port = softc->ctl_ports[i / CTL_MAX_INIT_PER_PORT]; 7972 if (port != NULL) 7973 len = ctl_create_iid(port, 7974 i % CTL_MAX_INIT_PER_PORT, 7975 res_desc->transport_id); 7976 scsi_ulto4b(len, res_desc->additional_length); 7977 res_desc = (struct scsi_per_res_in_full_desc *) 7978 &res_desc->transport_id[len]; 7979 } 7980 scsi_ulto4b((uint8_t *)res_desc - (uint8_t *)&res_status->desc[0], 7981 res_status->header.length); 7982 break; 7983 } 7984 default: 7985 /* 7986 * This is a bug, because we just checked for this above, 7987 * and should have returned an error. 7988 */ 7989 panic("Invalid PR type %x", cdb->action); 7990 break; /* NOTREACHED */ 7991 } 7992 mtx_unlock(&lun->lun_lock); 7993 7994 ctl_set_success(ctsio); 7995 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7996 ctsio->be_move_done = ctl_config_move_done; 7997 ctl_datamove((union ctl_io *)ctsio); 7998 return (CTL_RETVAL_COMPLETE); 7999} 8000 8001/* 8002 * Returns 0 if ctl_persistent_reserve_out() should continue, non-zero if 8003 * it should return. 8004 */ 8005static int 8006ctl_pro_preempt(struct ctl_softc *softc, struct ctl_lun *lun, uint64_t res_key, 8007 uint64_t sa_res_key, uint8_t type, uint32_t residx, 8008 struct ctl_scsiio *ctsio, struct scsi_per_res_out *cdb, 8009 struct scsi_per_res_out_parms* param) 8010{ 8011 union ctl_ha_msg persis_io; 8012 int i; 8013 8014 mtx_lock(&lun->lun_lock); 8015 if (sa_res_key == 0) { 8016 if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS) { 8017 /* validate scope and type */ 8018 if ((cdb->scope_type & SPR_SCOPE_MASK) != 8019 SPR_LU_SCOPE) { 8020 mtx_unlock(&lun->lun_lock); 8021 ctl_set_invalid_field(/*ctsio*/ ctsio, 8022 /*sks_valid*/ 1, 8023 /*command*/ 1, 8024 /*field*/ 2, 8025 /*bit_valid*/ 1, 8026 /*bit*/ 4); 8027 ctl_done((union ctl_io *)ctsio); 8028 return (1); 8029 } 8030 8031 if (type>8 || type==2 || type==4 || type==0) { 8032 mtx_unlock(&lun->lun_lock); 8033 ctl_set_invalid_field(/*ctsio*/ ctsio, 8034 /*sks_valid*/ 1, 8035 /*command*/ 1, 8036 /*field*/ 2, 8037 /*bit_valid*/ 1, 8038 /*bit*/ 0); 8039 ctl_done((union ctl_io *)ctsio); 8040 return (1); 8041 } 8042 8043 /* 8044 * Unregister everybody else and build UA for 8045 * them 8046 */ 8047 for(i = 0; i < CTL_MAX_INITIATORS; i++) { 8048 if (i == residx || ctl_get_prkey(lun, i) == 0) 8049 continue; 8050 8051 ctl_clr_prkey(lun, i); 8052 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 8053 } 8054 lun->pr_key_count = 1; 8055 lun->res_type = type; 8056 if (lun->res_type != SPR_TYPE_WR_EX_AR 8057 && lun->res_type != SPR_TYPE_EX_AC_AR) 8058 lun->pr_res_idx = residx; 8059 lun->PRGeneration++; 8060 mtx_unlock(&lun->lun_lock); 8061 8062 /* send msg to other side */ 8063 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8064 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8065 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 8066 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8067 persis_io.pr.pr_info.res_type = type; 8068 memcpy(persis_io.pr.pr_info.sa_res_key, 8069 param->serv_act_res_key, 8070 sizeof(param->serv_act_res_key)); 8071 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8072 sizeof(persis_io.pr), M_WAITOK); 8073 } else { 8074 /* not all registrants */ 8075 mtx_unlock(&lun->lun_lock); 8076 free(ctsio->kern_data_ptr, M_CTL); 8077 ctl_set_invalid_field(ctsio, 8078 /*sks_valid*/ 1, 8079 /*command*/ 0, 8080 /*field*/ 8, 8081 /*bit_valid*/ 0, 8082 /*bit*/ 0); 8083 ctl_done((union ctl_io *)ctsio); 8084 return (1); 8085 } 8086 } else if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS 8087 || !(lun->flags & CTL_LUN_PR_RESERVED)) { 8088 int found = 0; 8089 8090 if (res_key == sa_res_key) { 8091 /* special case */ 8092 /* 8093 * The spec implies this is not good but doesn't 8094 * say what to do. There are two choices either 8095 * generate a res conflict or check condition 8096 * with illegal field in parameter data. Since 8097 * that is what is done when the sa_res_key is 8098 * zero I'll take that approach since this has 8099 * to do with the sa_res_key. 8100 */ 8101 mtx_unlock(&lun->lun_lock); 8102 free(ctsio->kern_data_ptr, M_CTL); 8103 ctl_set_invalid_field(ctsio, 8104 /*sks_valid*/ 1, 8105 /*command*/ 0, 8106 /*field*/ 8, 8107 /*bit_valid*/ 0, 8108 /*bit*/ 0); 8109 ctl_done((union ctl_io *)ctsio); 8110 return (1); 8111 } 8112 8113 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 8114 if (ctl_get_prkey(lun, i) != sa_res_key) 8115 continue; 8116 8117 found = 1; 8118 ctl_clr_prkey(lun, i); 8119 lun->pr_key_count--; 8120 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 8121 } 8122 if (!found) { 8123 mtx_unlock(&lun->lun_lock); 8124 free(ctsio->kern_data_ptr, M_CTL); 8125 ctl_set_reservation_conflict(ctsio); 8126 ctl_done((union ctl_io *)ctsio); 8127 return (CTL_RETVAL_COMPLETE); 8128 } 8129 lun->PRGeneration++; 8130 mtx_unlock(&lun->lun_lock); 8131 8132 /* send msg to other side */ 8133 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8134 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8135 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 8136 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8137 persis_io.pr.pr_info.res_type = type; 8138 memcpy(persis_io.pr.pr_info.sa_res_key, 8139 param->serv_act_res_key, 8140 sizeof(param->serv_act_res_key)); 8141 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8142 sizeof(persis_io.pr), M_WAITOK); 8143 } else { 8144 /* Reserved but not all registrants */ 8145 /* sa_res_key is res holder */ 8146 if (sa_res_key == ctl_get_prkey(lun, lun->pr_res_idx)) { 8147 /* validate scope and type */ 8148 if ((cdb->scope_type & SPR_SCOPE_MASK) != 8149 SPR_LU_SCOPE) { 8150 mtx_unlock(&lun->lun_lock); 8151 ctl_set_invalid_field(/*ctsio*/ ctsio, 8152 /*sks_valid*/ 1, 8153 /*command*/ 1, 8154 /*field*/ 2, 8155 /*bit_valid*/ 1, 8156 /*bit*/ 4); 8157 ctl_done((union ctl_io *)ctsio); 8158 return (1); 8159 } 8160 8161 if (type>8 || type==2 || type==4 || type==0) { 8162 mtx_unlock(&lun->lun_lock); 8163 ctl_set_invalid_field(/*ctsio*/ ctsio, 8164 /*sks_valid*/ 1, 8165 /*command*/ 1, 8166 /*field*/ 2, 8167 /*bit_valid*/ 1, 8168 /*bit*/ 0); 8169 ctl_done((union ctl_io *)ctsio); 8170 return (1); 8171 } 8172 8173 /* 8174 * Do the following: 8175 * if sa_res_key != res_key remove all 8176 * registrants w/sa_res_key and generate UA 8177 * for these registrants(Registrations 8178 * Preempted) if it wasn't an exclusive 8179 * reservation generate UA(Reservations 8180 * Preempted) for all other registered nexuses 8181 * if the type has changed. Establish the new 8182 * reservation and holder. If res_key and 8183 * sa_res_key are the same do the above 8184 * except don't unregister the res holder. 8185 */ 8186 8187 for(i = 0; i < CTL_MAX_INITIATORS; i++) { 8188 if (i == residx || ctl_get_prkey(lun, i) == 0) 8189 continue; 8190 8191 if (sa_res_key == ctl_get_prkey(lun, i)) { 8192 ctl_clr_prkey(lun, i); 8193 lun->pr_key_count--; 8194 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 8195 } else if (type != lun->res_type 8196 && (lun->res_type == SPR_TYPE_WR_EX_RO 8197 || lun->res_type ==SPR_TYPE_EX_AC_RO)){ 8198 ctl_est_ua(lun, i, CTL_UA_RES_RELEASE); 8199 } 8200 } 8201 lun->res_type = type; 8202 if (lun->res_type != SPR_TYPE_WR_EX_AR 8203 && lun->res_type != SPR_TYPE_EX_AC_AR) 8204 lun->pr_res_idx = residx; 8205 else 8206 lun->pr_res_idx = CTL_PR_ALL_REGISTRANTS; 8207 lun->PRGeneration++; 8208 mtx_unlock(&lun->lun_lock); 8209 8210 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8211 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8212 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 8213 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8214 persis_io.pr.pr_info.res_type = type; 8215 memcpy(persis_io.pr.pr_info.sa_res_key, 8216 param->serv_act_res_key, 8217 sizeof(param->serv_act_res_key)); 8218 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8219 sizeof(persis_io.pr), M_WAITOK); 8220 } else { 8221 /* 8222 * sa_res_key is not the res holder just 8223 * remove registrants 8224 */ 8225 int found=0; 8226 8227 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 8228 if (sa_res_key != ctl_get_prkey(lun, i)) 8229 continue; 8230 8231 found = 1; 8232 ctl_clr_prkey(lun, i); 8233 lun->pr_key_count--; 8234 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 8235 } 8236 8237 if (!found) { 8238 mtx_unlock(&lun->lun_lock); 8239 free(ctsio->kern_data_ptr, M_CTL); 8240 ctl_set_reservation_conflict(ctsio); 8241 ctl_done((union ctl_io *)ctsio); 8242 return (1); 8243 } 8244 lun->PRGeneration++; 8245 mtx_unlock(&lun->lun_lock); 8246 8247 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8248 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8249 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 8250 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8251 persis_io.pr.pr_info.res_type = type; 8252 memcpy(persis_io.pr.pr_info.sa_res_key, 8253 param->serv_act_res_key, 8254 sizeof(param->serv_act_res_key)); 8255 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8256 sizeof(persis_io.pr), M_WAITOK); 8257 } 8258 } 8259 return (0); 8260} 8261 8262static void 8263ctl_pro_preempt_other(struct ctl_lun *lun, union ctl_ha_msg *msg) 8264{ 8265 uint64_t sa_res_key; 8266 int i; 8267 8268 sa_res_key = scsi_8btou64(msg->pr.pr_info.sa_res_key); 8269 8270 if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS 8271 || lun->pr_res_idx == CTL_PR_NO_RESERVATION 8272 || sa_res_key != ctl_get_prkey(lun, lun->pr_res_idx)) { 8273 if (sa_res_key == 0) { 8274 /* 8275 * Unregister everybody else and build UA for 8276 * them 8277 */ 8278 for(i = 0; i < CTL_MAX_INITIATORS; i++) { 8279 if (i == msg->pr.pr_info.residx || 8280 ctl_get_prkey(lun, i) == 0) 8281 continue; 8282 8283 ctl_clr_prkey(lun, i); 8284 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 8285 } 8286 8287 lun->pr_key_count = 1; 8288 lun->res_type = msg->pr.pr_info.res_type; 8289 if (lun->res_type != SPR_TYPE_WR_EX_AR 8290 && lun->res_type != SPR_TYPE_EX_AC_AR) 8291 lun->pr_res_idx = msg->pr.pr_info.residx; 8292 } else { 8293 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 8294 if (sa_res_key == ctl_get_prkey(lun, i)) 8295 continue; 8296 8297 ctl_clr_prkey(lun, i); 8298 lun->pr_key_count--; 8299 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 8300 } 8301 } 8302 } else { 8303 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 8304 if (i == msg->pr.pr_info.residx || 8305 ctl_get_prkey(lun, i) == 0) 8306 continue; 8307 8308 if (sa_res_key == ctl_get_prkey(lun, i)) { 8309 ctl_clr_prkey(lun, i); 8310 lun->pr_key_count--; 8311 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 8312 } else if (msg->pr.pr_info.res_type != lun->res_type 8313 && (lun->res_type == SPR_TYPE_WR_EX_RO 8314 || lun->res_type == SPR_TYPE_EX_AC_RO)) { 8315 ctl_est_ua(lun, i, CTL_UA_RES_RELEASE); 8316 } 8317 } 8318 lun->res_type = msg->pr.pr_info.res_type; 8319 if (lun->res_type != SPR_TYPE_WR_EX_AR 8320 && lun->res_type != SPR_TYPE_EX_AC_AR) 8321 lun->pr_res_idx = msg->pr.pr_info.residx; 8322 else 8323 lun->pr_res_idx = CTL_PR_ALL_REGISTRANTS; 8324 } 8325 lun->PRGeneration++; 8326 8327} 8328 8329 8330int 8331ctl_persistent_reserve_out(struct ctl_scsiio *ctsio) 8332{ 8333 int retval; 8334 u_int32_t param_len; 8335 struct scsi_per_res_out *cdb; 8336 struct ctl_lun *lun; 8337 struct scsi_per_res_out_parms* param; 8338 struct ctl_softc *softc; 8339 uint32_t residx; 8340 uint64_t res_key, sa_res_key, key; 8341 uint8_t type; 8342 union ctl_ha_msg persis_io; 8343 int i; 8344 8345 CTL_DEBUG_PRINT(("ctl_persistent_reserve_out\n")); 8346 8347 retval = CTL_RETVAL_COMPLETE; 8348 8349 cdb = (struct scsi_per_res_out *)ctsio->cdb; 8350 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 8351 softc = lun->ctl_softc; 8352 8353 /* 8354 * We only support whole-LUN scope. The scope & type are ignored for 8355 * register, register and ignore existing key and clear. 8356 * We sometimes ignore scope and type on preempts too!! 8357 * Verify reservation type here as well. 8358 */ 8359 type = cdb->scope_type & SPR_TYPE_MASK; 8360 if ((cdb->action == SPRO_RESERVE) 8361 || (cdb->action == SPRO_RELEASE)) { 8362 if ((cdb->scope_type & SPR_SCOPE_MASK) != SPR_LU_SCOPE) { 8363 ctl_set_invalid_field(/*ctsio*/ ctsio, 8364 /*sks_valid*/ 1, 8365 /*command*/ 1, 8366 /*field*/ 2, 8367 /*bit_valid*/ 1, 8368 /*bit*/ 4); 8369 ctl_done((union ctl_io *)ctsio); 8370 return (CTL_RETVAL_COMPLETE); 8371 } 8372 8373 if (type>8 || type==2 || type==4 || type==0) { 8374 ctl_set_invalid_field(/*ctsio*/ ctsio, 8375 /*sks_valid*/ 1, 8376 /*command*/ 1, 8377 /*field*/ 2, 8378 /*bit_valid*/ 1, 8379 /*bit*/ 0); 8380 ctl_done((union ctl_io *)ctsio); 8381 return (CTL_RETVAL_COMPLETE); 8382 } 8383 } 8384 8385 param_len = scsi_4btoul(cdb->length); 8386 8387 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 8388 ctsio->kern_data_ptr = malloc(param_len, M_CTL, M_WAITOK); 8389 ctsio->kern_data_len = param_len; 8390 ctsio->kern_total_len = param_len; 8391 ctsio->kern_data_resid = 0; 8392 ctsio->kern_rel_offset = 0; 8393 ctsio->kern_sg_entries = 0; 8394 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 8395 ctsio->be_move_done = ctl_config_move_done; 8396 ctl_datamove((union ctl_io *)ctsio); 8397 8398 return (CTL_RETVAL_COMPLETE); 8399 } 8400 8401 param = (struct scsi_per_res_out_parms *)ctsio->kern_data_ptr; 8402 8403 residx = ctl_get_initindex(&ctsio->io_hdr.nexus); 8404 res_key = scsi_8btou64(param->res_key.key); 8405 sa_res_key = scsi_8btou64(param->serv_act_res_key); 8406 8407 /* 8408 * Validate the reservation key here except for SPRO_REG_IGNO 8409 * This must be done for all other service actions 8410 */ 8411 if ((cdb->action & SPRO_ACTION_MASK) != SPRO_REG_IGNO) { 8412 mtx_lock(&lun->lun_lock); 8413 if ((key = ctl_get_prkey(lun, residx)) != 0) { 8414 if (res_key != key) { 8415 /* 8416 * The current key passed in doesn't match 8417 * the one the initiator previously 8418 * registered. 8419 */ 8420 mtx_unlock(&lun->lun_lock); 8421 free(ctsio->kern_data_ptr, M_CTL); 8422 ctl_set_reservation_conflict(ctsio); 8423 ctl_done((union ctl_io *)ctsio); 8424 return (CTL_RETVAL_COMPLETE); 8425 } 8426 } else if ((cdb->action & SPRO_ACTION_MASK) != SPRO_REGISTER) { 8427 /* 8428 * We are not registered 8429 */ 8430 mtx_unlock(&lun->lun_lock); 8431 free(ctsio->kern_data_ptr, M_CTL); 8432 ctl_set_reservation_conflict(ctsio); 8433 ctl_done((union ctl_io *)ctsio); 8434 return (CTL_RETVAL_COMPLETE); 8435 } else if (res_key != 0) { 8436 /* 8437 * We are not registered and trying to register but 8438 * the register key isn't zero. 8439 */ 8440 mtx_unlock(&lun->lun_lock); 8441 free(ctsio->kern_data_ptr, M_CTL); 8442 ctl_set_reservation_conflict(ctsio); 8443 ctl_done((union ctl_io *)ctsio); 8444 return (CTL_RETVAL_COMPLETE); 8445 } 8446 mtx_unlock(&lun->lun_lock); 8447 } 8448 8449 switch (cdb->action & SPRO_ACTION_MASK) { 8450 case SPRO_REGISTER: 8451 case SPRO_REG_IGNO: { 8452 8453#if 0 8454 printf("Registration received\n"); 8455#endif 8456 8457 /* 8458 * We don't support any of these options, as we report in 8459 * the read capabilities request (see 8460 * ctl_persistent_reserve_in(), above). 8461 */ 8462 if ((param->flags & SPR_SPEC_I_PT) 8463 || (param->flags & SPR_ALL_TG_PT) 8464 || (param->flags & SPR_APTPL)) { 8465 int bit_ptr; 8466 8467 if (param->flags & SPR_APTPL) 8468 bit_ptr = 0; 8469 else if (param->flags & SPR_ALL_TG_PT) 8470 bit_ptr = 2; 8471 else /* SPR_SPEC_I_PT */ 8472 bit_ptr = 3; 8473 8474 free(ctsio->kern_data_ptr, M_CTL); 8475 ctl_set_invalid_field(ctsio, 8476 /*sks_valid*/ 1, 8477 /*command*/ 0, 8478 /*field*/ 20, 8479 /*bit_valid*/ 1, 8480 /*bit*/ bit_ptr); 8481 ctl_done((union ctl_io *)ctsio); 8482 return (CTL_RETVAL_COMPLETE); 8483 } 8484 8485 mtx_lock(&lun->lun_lock); 8486 8487 /* 8488 * The initiator wants to clear the 8489 * key/unregister. 8490 */ 8491 if (sa_res_key == 0) { 8492 if ((res_key == 0 8493 && (cdb->action & SPRO_ACTION_MASK) == SPRO_REGISTER) 8494 || ((cdb->action & SPRO_ACTION_MASK) == SPRO_REG_IGNO 8495 && ctl_get_prkey(lun, residx) == 0)) { 8496 mtx_unlock(&lun->lun_lock); 8497 goto done; 8498 } 8499 8500 ctl_clr_prkey(lun, residx); 8501 lun->pr_key_count--; 8502 8503 if (residx == lun->pr_res_idx) { 8504 lun->flags &= ~CTL_LUN_PR_RESERVED; 8505 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8506 8507 if ((lun->res_type == SPR_TYPE_WR_EX_RO 8508 || lun->res_type == SPR_TYPE_EX_AC_RO) 8509 && lun->pr_key_count) { 8510 /* 8511 * If the reservation is a registrants 8512 * only type we need to generate a UA 8513 * for other registered inits. The 8514 * sense code should be RESERVATIONS 8515 * RELEASED 8516 */ 8517 8518 for (i = softc->init_min; i < softc->init_max; i++){ 8519 if (ctl_get_prkey(lun, i) == 0) 8520 continue; 8521 ctl_est_ua(lun, i, 8522 CTL_UA_RES_RELEASE); 8523 } 8524 } 8525 lun->res_type = 0; 8526 } else if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS) { 8527 if (lun->pr_key_count==0) { 8528 lun->flags &= ~CTL_LUN_PR_RESERVED; 8529 lun->res_type = 0; 8530 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8531 } 8532 } 8533 lun->PRGeneration++; 8534 mtx_unlock(&lun->lun_lock); 8535 8536 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8537 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8538 persis_io.pr.pr_info.action = CTL_PR_UNREG_KEY; 8539 persis_io.pr.pr_info.residx = residx; 8540 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8541 sizeof(persis_io.pr), M_WAITOK); 8542 } else /* sa_res_key != 0 */ { 8543 8544 /* 8545 * If we aren't registered currently then increment 8546 * the key count and set the registered flag. 8547 */ 8548 ctl_alloc_prkey(lun, residx); 8549 if (ctl_get_prkey(lun, residx) == 0) 8550 lun->pr_key_count++; 8551 ctl_set_prkey(lun, residx, sa_res_key); 8552 lun->PRGeneration++; 8553 mtx_unlock(&lun->lun_lock); 8554 8555 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8556 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8557 persis_io.pr.pr_info.action = CTL_PR_REG_KEY; 8558 persis_io.pr.pr_info.residx = residx; 8559 memcpy(persis_io.pr.pr_info.sa_res_key, 8560 param->serv_act_res_key, 8561 sizeof(param->serv_act_res_key)); 8562 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8563 sizeof(persis_io.pr), M_WAITOK); 8564 } 8565 8566 break; 8567 } 8568 case SPRO_RESERVE: 8569#if 0 8570 printf("Reserve executed type %d\n", type); 8571#endif 8572 mtx_lock(&lun->lun_lock); 8573 if (lun->flags & CTL_LUN_PR_RESERVED) { 8574 /* 8575 * if this isn't the reservation holder and it's 8576 * not a "all registrants" type or if the type is 8577 * different then we have a conflict 8578 */ 8579 if ((lun->pr_res_idx != residx 8580 && lun->pr_res_idx != CTL_PR_ALL_REGISTRANTS) 8581 || lun->res_type != type) { 8582 mtx_unlock(&lun->lun_lock); 8583 free(ctsio->kern_data_ptr, M_CTL); 8584 ctl_set_reservation_conflict(ctsio); 8585 ctl_done((union ctl_io *)ctsio); 8586 return (CTL_RETVAL_COMPLETE); 8587 } 8588 mtx_unlock(&lun->lun_lock); 8589 } else /* create a reservation */ { 8590 /* 8591 * If it's not an "all registrants" type record 8592 * reservation holder 8593 */ 8594 if (type != SPR_TYPE_WR_EX_AR 8595 && type != SPR_TYPE_EX_AC_AR) 8596 lun->pr_res_idx = residx; /* Res holder */ 8597 else 8598 lun->pr_res_idx = CTL_PR_ALL_REGISTRANTS; 8599 8600 lun->flags |= CTL_LUN_PR_RESERVED; 8601 lun->res_type = type; 8602 8603 mtx_unlock(&lun->lun_lock); 8604 8605 /* send msg to other side */ 8606 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8607 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8608 persis_io.pr.pr_info.action = CTL_PR_RESERVE; 8609 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8610 persis_io.pr.pr_info.res_type = type; 8611 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8612 sizeof(persis_io.pr), M_WAITOK); 8613 } 8614 break; 8615 8616 case SPRO_RELEASE: 8617 mtx_lock(&lun->lun_lock); 8618 if ((lun->flags & CTL_LUN_PR_RESERVED) == 0) { 8619 /* No reservation exists return good status */ 8620 mtx_unlock(&lun->lun_lock); 8621 goto done; 8622 } 8623 /* 8624 * Is this nexus a reservation holder? 8625 */ 8626 if (lun->pr_res_idx != residx 8627 && lun->pr_res_idx != CTL_PR_ALL_REGISTRANTS) { 8628 /* 8629 * not a res holder return good status but 8630 * do nothing 8631 */ 8632 mtx_unlock(&lun->lun_lock); 8633 goto done; 8634 } 8635 8636 if (lun->res_type != type) { 8637 mtx_unlock(&lun->lun_lock); 8638 free(ctsio->kern_data_ptr, M_CTL); 8639 ctl_set_illegal_pr_release(ctsio); 8640 ctl_done((union ctl_io *)ctsio); 8641 return (CTL_RETVAL_COMPLETE); 8642 } 8643 8644 /* okay to release */ 8645 lun->flags &= ~CTL_LUN_PR_RESERVED; 8646 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8647 lun->res_type = 0; 8648 8649 /* 8650 * if this isn't an exclusive access 8651 * res generate UA for all other 8652 * registrants. 8653 */ 8654 if (type != SPR_TYPE_EX_AC 8655 && type != SPR_TYPE_WR_EX) { 8656 for (i = softc->init_min; i < softc->init_max; i++) { 8657 if (i == residx || ctl_get_prkey(lun, i) == 0) 8658 continue; 8659 ctl_est_ua(lun, i, CTL_UA_RES_RELEASE); 8660 } 8661 } 8662 mtx_unlock(&lun->lun_lock); 8663 8664 /* Send msg to other side */ 8665 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8666 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8667 persis_io.pr.pr_info.action = CTL_PR_RELEASE; 8668 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8669 sizeof(persis_io.pr), M_WAITOK); 8670 break; 8671 8672 case SPRO_CLEAR: 8673 /* send msg to other side */ 8674 8675 mtx_lock(&lun->lun_lock); 8676 lun->flags &= ~CTL_LUN_PR_RESERVED; 8677 lun->res_type = 0; 8678 lun->pr_key_count = 0; 8679 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8680 8681 ctl_clr_prkey(lun, residx); 8682 for (i = 0; i < CTL_MAX_INITIATORS; i++) 8683 if (ctl_get_prkey(lun, i) != 0) { 8684 ctl_clr_prkey(lun, i); 8685 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 8686 } 8687 lun->PRGeneration++; 8688 mtx_unlock(&lun->lun_lock); 8689 8690 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8691 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8692 persis_io.pr.pr_info.action = CTL_PR_CLEAR; 8693 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8694 sizeof(persis_io.pr), M_WAITOK); 8695 break; 8696 8697 case SPRO_PREEMPT: 8698 case SPRO_PRE_ABO: { 8699 int nretval; 8700 8701 nretval = ctl_pro_preempt(softc, lun, res_key, sa_res_key, type, 8702 residx, ctsio, cdb, param); 8703 if (nretval != 0) 8704 return (CTL_RETVAL_COMPLETE); 8705 break; 8706 } 8707 default: 8708 panic("Invalid PR type %x", cdb->action); 8709 } 8710 8711done: 8712 free(ctsio->kern_data_ptr, M_CTL); 8713 ctl_set_success(ctsio); 8714 ctl_done((union ctl_io *)ctsio); 8715 8716 return (retval); 8717} 8718 8719/* 8720 * This routine is for handling a message from the other SC pertaining to 8721 * persistent reserve out. All the error checking will have been done 8722 * so only perorming the action need be done here to keep the two 8723 * in sync. 8724 */ 8725static void 8726ctl_hndl_per_res_out_on_other_sc(union ctl_ha_msg *msg) 8727{ 8728 struct ctl_lun *lun; 8729 struct ctl_softc *softc; 8730 int i; 8731 uint32_t residx, targ_lun; 8732 8733 softc = control_softc; 8734 targ_lun = msg->hdr.nexus.targ_mapped_lun; 8735 mtx_lock(&softc->ctl_lock); 8736 if ((targ_lun >= CTL_MAX_LUNS) || 8737 ((lun = softc->ctl_luns[targ_lun]) == NULL)) { 8738 mtx_unlock(&softc->ctl_lock); 8739 return; 8740 } 8741 mtx_lock(&lun->lun_lock); 8742 mtx_unlock(&softc->ctl_lock); 8743 if (lun->flags & CTL_LUN_DISABLED) { 8744 mtx_unlock(&lun->lun_lock); 8745 return; 8746 } 8747 residx = ctl_get_initindex(&msg->hdr.nexus); 8748 switch(msg->pr.pr_info.action) { 8749 case CTL_PR_REG_KEY: 8750 ctl_alloc_prkey(lun, msg->pr.pr_info.residx); 8751 if (ctl_get_prkey(lun, msg->pr.pr_info.residx) == 0) 8752 lun->pr_key_count++; 8753 ctl_set_prkey(lun, msg->pr.pr_info.residx, 8754 scsi_8btou64(msg->pr.pr_info.sa_res_key)); 8755 lun->PRGeneration++; 8756 break; 8757 8758 case CTL_PR_UNREG_KEY: 8759 ctl_clr_prkey(lun, msg->pr.pr_info.residx); 8760 lun->pr_key_count--; 8761 8762 /* XXX Need to see if the reservation has been released */ 8763 /* if so do we need to generate UA? */ 8764 if (msg->pr.pr_info.residx == lun->pr_res_idx) { 8765 lun->flags &= ~CTL_LUN_PR_RESERVED; 8766 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8767 8768 if ((lun->res_type == SPR_TYPE_WR_EX_RO 8769 || lun->res_type == SPR_TYPE_EX_AC_RO) 8770 && lun->pr_key_count) { 8771 /* 8772 * If the reservation is a registrants 8773 * only type we need to generate a UA 8774 * for other registered inits. The 8775 * sense code should be RESERVATIONS 8776 * RELEASED 8777 */ 8778 8779 for (i = softc->init_min; i < softc->init_max; i++) { 8780 if (ctl_get_prkey(lun, i) == 0) 8781 continue; 8782 8783 ctl_est_ua(lun, i, CTL_UA_RES_RELEASE); 8784 } 8785 } 8786 lun->res_type = 0; 8787 } else if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS) { 8788 if (lun->pr_key_count==0) { 8789 lun->flags &= ~CTL_LUN_PR_RESERVED; 8790 lun->res_type = 0; 8791 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8792 } 8793 } 8794 lun->PRGeneration++; 8795 break; 8796 8797 case CTL_PR_RESERVE: 8798 lun->flags |= CTL_LUN_PR_RESERVED; 8799 lun->res_type = msg->pr.pr_info.res_type; 8800 lun->pr_res_idx = msg->pr.pr_info.residx; 8801 8802 break; 8803 8804 case CTL_PR_RELEASE: 8805 /* 8806 * if this isn't an exclusive access res generate UA for all 8807 * other registrants. 8808 */ 8809 if (lun->res_type != SPR_TYPE_EX_AC 8810 && lun->res_type != SPR_TYPE_WR_EX) { 8811 for (i = softc->init_min; i < softc->init_max; i++) 8812 if (i == residx || ctl_get_prkey(lun, i) == 0) 8813 continue; 8814 ctl_est_ua(lun, i, CTL_UA_RES_RELEASE); 8815 } 8816 8817 lun->flags &= ~CTL_LUN_PR_RESERVED; 8818 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8819 lun->res_type = 0; 8820 break; 8821 8822 case CTL_PR_PREEMPT: 8823 ctl_pro_preempt_other(lun, msg); 8824 break; 8825 case CTL_PR_CLEAR: 8826 lun->flags &= ~CTL_LUN_PR_RESERVED; 8827 lun->res_type = 0; 8828 lun->pr_key_count = 0; 8829 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8830 8831 for (i=0; i < CTL_MAX_INITIATORS; i++) { 8832 if (ctl_get_prkey(lun, i) == 0) 8833 continue; 8834 ctl_clr_prkey(lun, i); 8835 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 8836 } 8837 lun->PRGeneration++; 8838 break; 8839 } 8840 8841 mtx_unlock(&lun->lun_lock); 8842} 8843 8844int 8845ctl_read_write(struct ctl_scsiio *ctsio) 8846{ 8847 struct ctl_lun *lun; 8848 struct ctl_lba_len_flags *lbalen; 8849 uint64_t lba; 8850 uint32_t num_blocks; 8851 int flags, retval; 8852 int isread; 8853 8854 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 8855 8856 CTL_DEBUG_PRINT(("ctl_read_write: command: %#x\n", ctsio->cdb[0])); 8857 8858 flags = 0; 8859 retval = CTL_RETVAL_COMPLETE; 8860 8861 isread = ctsio->cdb[0] == READ_6 || ctsio->cdb[0] == READ_10 8862 || ctsio->cdb[0] == READ_12 || ctsio->cdb[0] == READ_16; 8863 switch (ctsio->cdb[0]) { 8864 case READ_6: 8865 case WRITE_6: { 8866 struct scsi_rw_6 *cdb; 8867 8868 cdb = (struct scsi_rw_6 *)ctsio->cdb; 8869 8870 lba = scsi_3btoul(cdb->addr); 8871 /* only 5 bits are valid in the most significant address byte */ 8872 lba &= 0x1fffff; 8873 num_blocks = cdb->length; 8874 /* 8875 * This is correct according to SBC-2. 8876 */ 8877 if (num_blocks == 0) 8878 num_blocks = 256; 8879 break; 8880 } 8881 case READ_10: 8882 case WRITE_10: { 8883 struct scsi_rw_10 *cdb; 8884 8885 cdb = (struct scsi_rw_10 *)ctsio->cdb; 8886 if (cdb->byte2 & SRW10_FUA) 8887 flags |= CTL_LLF_FUA; 8888 if (cdb->byte2 & SRW10_DPO) 8889 flags |= CTL_LLF_DPO; 8890 lba = scsi_4btoul(cdb->addr); 8891 num_blocks = scsi_2btoul(cdb->length); 8892 break; 8893 } 8894 case WRITE_VERIFY_10: { 8895 struct scsi_write_verify_10 *cdb; 8896 8897 cdb = (struct scsi_write_verify_10 *)ctsio->cdb; 8898 flags |= CTL_LLF_FUA; 8899 if (cdb->byte2 & SWV_DPO) 8900 flags |= CTL_LLF_DPO; 8901 lba = scsi_4btoul(cdb->addr); 8902 num_blocks = scsi_2btoul(cdb->length); 8903 break; 8904 } 8905 case READ_12: 8906 case WRITE_12: { 8907 struct scsi_rw_12 *cdb; 8908 8909 cdb = (struct scsi_rw_12 *)ctsio->cdb; 8910 if (cdb->byte2 & SRW12_FUA) 8911 flags |= CTL_LLF_FUA; 8912 if (cdb->byte2 & SRW12_DPO) 8913 flags |= CTL_LLF_DPO; 8914 lba = scsi_4btoul(cdb->addr); 8915 num_blocks = scsi_4btoul(cdb->length); 8916 break; 8917 } 8918 case WRITE_VERIFY_12: { 8919 struct scsi_write_verify_12 *cdb; 8920 8921 cdb = (struct scsi_write_verify_12 *)ctsio->cdb; 8922 flags |= CTL_LLF_FUA; 8923 if (cdb->byte2 & SWV_DPO) 8924 flags |= CTL_LLF_DPO; 8925 lba = scsi_4btoul(cdb->addr); 8926 num_blocks = scsi_4btoul(cdb->length); 8927 break; 8928 } 8929 case READ_16: 8930 case WRITE_16: { 8931 struct scsi_rw_16 *cdb; 8932 8933 cdb = (struct scsi_rw_16 *)ctsio->cdb; 8934 if (cdb->byte2 & SRW12_FUA) 8935 flags |= CTL_LLF_FUA; 8936 if (cdb->byte2 & SRW12_DPO) 8937 flags |= CTL_LLF_DPO; 8938 lba = scsi_8btou64(cdb->addr); 8939 num_blocks = scsi_4btoul(cdb->length); 8940 break; 8941 } 8942 case WRITE_ATOMIC_16: { 8943 struct scsi_rw_16 *cdb; 8944 8945 if (lun->be_lun->atomicblock == 0) { 8946 ctl_set_invalid_opcode(ctsio); 8947 ctl_done((union ctl_io *)ctsio); 8948 return (CTL_RETVAL_COMPLETE); 8949 } 8950 8951 cdb = (struct scsi_rw_16 *)ctsio->cdb; 8952 if (cdb->byte2 & SRW12_FUA) 8953 flags |= CTL_LLF_FUA; 8954 if (cdb->byte2 & SRW12_DPO) 8955 flags |= CTL_LLF_DPO; 8956 lba = scsi_8btou64(cdb->addr); 8957 num_blocks = scsi_4btoul(cdb->length); 8958 if (num_blocks > lun->be_lun->atomicblock) { 8959 ctl_set_invalid_field(ctsio, /*sks_valid*/ 1, 8960 /*command*/ 1, /*field*/ 12, /*bit_valid*/ 0, 8961 /*bit*/ 0); 8962 ctl_done((union ctl_io *)ctsio); 8963 return (CTL_RETVAL_COMPLETE); 8964 } 8965 break; 8966 } 8967 case WRITE_VERIFY_16: { 8968 struct scsi_write_verify_16 *cdb; 8969 8970 cdb = (struct scsi_write_verify_16 *)ctsio->cdb; 8971 flags |= CTL_LLF_FUA; 8972 if (cdb->byte2 & SWV_DPO) 8973 flags |= CTL_LLF_DPO; 8974 lba = scsi_8btou64(cdb->addr); 8975 num_blocks = scsi_4btoul(cdb->length); 8976 break; 8977 } 8978 default: 8979 /* 8980 * We got a command we don't support. This shouldn't 8981 * happen, commands should be filtered out above us. 8982 */ 8983 ctl_set_invalid_opcode(ctsio); 8984 ctl_done((union ctl_io *)ctsio); 8985 8986 return (CTL_RETVAL_COMPLETE); 8987 break; /* NOTREACHED */ 8988 } 8989 8990 /* 8991 * The first check is to make sure we're in bounds, the second 8992 * check is to catch wrap-around problems. If the lba + num blocks 8993 * is less than the lba, then we've wrapped around and the block 8994 * range is invalid anyway. 8995 */ 8996 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 8997 || ((lba + num_blocks) < lba)) { 8998 ctl_set_lba_out_of_range(ctsio); 8999 ctl_done((union ctl_io *)ctsio); 9000 return (CTL_RETVAL_COMPLETE); 9001 } 9002 9003 /* 9004 * According to SBC-3, a transfer length of 0 is not an error. 9005 * Note that this cannot happen with WRITE(6) or READ(6), since 0 9006 * translates to 256 blocks for those commands. 9007 */ 9008 if (num_blocks == 0) { 9009 ctl_set_success(ctsio); 9010 ctl_done((union ctl_io *)ctsio); 9011 return (CTL_RETVAL_COMPLETE); 9012 } 9013 9014 /* Set FUA and/or DPO if caches are disabled. */ 9015 if (isread) { 9016 if ((lun->mode_pages.caching_page[CTL_PAGE_CURRENT].flags1 & 9017 SCP_RCD) != 0) 9018 flags |= CTL_LLF_FUA | CTL_LLF_DPO; 9019 } else { 9020 if ((lun->mode_pages.caching_page[CTL_PAGE_CURRENT].flags1 & 9021 SCP_WCE) == 0) 9022 flags |= CTL_LLF_FUA; 9023 } 9024 9025 lbalen = (struct ctl_lba_len_flags *) 9026 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 9027 lbalen->lba = lba; 9028 lbalen->len = num_blocks; 9029 lbalen->flags = (isread ? CTL_LLF_READ : CTL_LLF_WRITE) | flags; 9030 9031 ctsio->kern_total_len = num_blocks * lun->be_lun->blocksize; 9032 ctsio->kern_rel_offset = 0; 9033 9034 CTL_DEBUG_PRINT(("ctl_read_write: calling data_submit()\n")); 9035 9036 retval = lun->backend->data_submit((union ctl_io *)ctsio); 9037 9038 return (retval); 9039} 9040 9041static int 9042ctl_cnw_cont(union ctl_io *io) 9043{ 9044 struct ctl_scsiio *ctsio; 9045 struct ctl_lun *lun; 9046 struct ctl_lba_len_flags *lbalen; 9047 int retval; 9048 9049 ctsio = &io->scsiio; 9050 ctsio->io_hdr.status = CTL_STATUS_NONE; 9051 ctsio->io_hdr.flags &= ~CTL_FLAG_IO_CONT; 9052 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9053 lbalen = (struct ctl_lba_len_flags *) 9054 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 9055 lbalen->flags &= ~CTL_LLF_COMPARE; 9056 lbalen->flags |= CTL_LLF_WRITE; 9057 9058 CTL_DEBUG_PRINT(("ctl_cnw_cont: calling data_submit()\n")); 9059 retval = lun->backend->data_submit((union ctl_io *)ctsio); 9060 return (retval); 9061} 9062 9063int 9064ctl_cnw(struct ctl_scsiio *ctsio) 9065{ 9066 struct ctl_lun *lun; 9067 struct ctl_lba_len_flags *lbalen; 9068 uint64_t lba; 9069 uint32_t num_blocks; 9070 int flags, retval; 9071 9072 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9073 9074 CTL_DEBUG_PRINT(("ctl_cnw: command: %#x\n", ctsio->cdb[0])); 9075 9076 flags = 0; 9077 retval = CTL_RETVAL_COMPLETE; 9078 9079 switch (ctsio->cdb[0]) { 9080 case COMPARE_AND_WRITE: { 9081 struct scsi_compare_and_write *cdb; 9082 9083 cdb = (struct scsi_compare_and_write *)ctsio->cdb; 9084 if (cdb->byte2 & SRW10_FUA) 9085 flags |= CTL_LLF_FUA; 9086 if (cdb->byte2 & SRW10_DPO) 9087 flags |= CTL_LLF_DPO; 9088 lba = scsi_8btou64(cdb->addr); 9089 num_blocks = cdb->length; 9090 break; 9091 } 9092 default: 9093 /* 9094 * We got a command we don't support. This shouldn't 9095 * happen, commands should be filtered out above us. 9096 */ 9097 ctl_set_invalid_opcode(ctsio); 9098 ctl_done((union ctl_io *)ctsio); 9099 9100 return (CTL_RETVAL_COMPLETE); 9101 break; /* NOTREACHED */ 9102 } 9103 9104 /* 9105 * The first check is to make sure we're in bounds, the second 9106 * check is to catch wrap-around problems. If the lba + num blocks 9107 * is less than the lba, then we've wrapped around and the block 9108 * range is invalid anyway. 9109 */ 9110 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 9111 || ((lba + num_blocks) < lba)) { 9112 ctl_set_lba_out_of_range(ctsio); 9113 ctl_done((union ctl_io *)ctsio); 9114 return (CTL_RETVAL_COMPLETE); 9115 } 9116 9117 /* 9118 * According to SBC-3, a transfer length of 0 is not an error. 9119 */ 9120 if (num_blocks == 0) { 9121 ctl_set_success(ctsio); 9122 ctl_done((union ctl_io *)ctsio); 9123 return (CTL_RETVAL_COMPLETE); 9124 } 9125 9126 /* Set FUA if write cache is disabled. */ 9127 if ((lun->mode_pages.caching_page[CTL_PAGE_CURRENT].flags1 & 9128 SCP_WCE) == 0) 9129 flags |= CTL_LLF_FUA; 9130 9131 ctsio->kern_total_len = 2 * num_blocks * lun->be_lun->blocksize; 9132 ctsio->kern_rel_offset = 0; 9133 9134 /* 9135 * Set the IO_CONT flag, so that if this I/O gets passed to 9136 * ctl_data_submit_done(), it'll get passed back to 9137 * ctl_ctl_cnw_cont() for further processing. 9138 */ 9139 ctsio->io_hdr.flags |= CTL_FLAG_IO_CONT; 9140 ctsio->io_cont = ctl_cnw_cont; 9141 9142 lbalen = (struct ctl_lba_len_flags *) 9143 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 9144 lbalen->lba = lba; 9145 lbalen->len = num_blocks; 9146 lbalen->flags = CTL_LLF_COMPARE | flags; 9147 9148 CTL_DEBUG_PRINT(("ctl_cnw: calling data_submit()\n")); 9149 retval = lun->backend->data_submit((union ctl_io *)ctsio); 9150 return (retval); 9151} 9152 9153int 9154ctl_verify(struct ctl_scsiio *ctsio) 9155{ 9156 struct ctl_lun *lun; 9157 struct ctl_lba_len_flags *lbalen; 9158 uint64_t lba; 9159 uint32_t num_blocks; 9160 int bytchk, flags; 9161 int retval; 9162 9163 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9164 9165 CTL_DEBUG_PRINT(("ctl_verify: command: %#x\n", ctsio->cdb[0])); 9166 9167 bytchk = 0; 9168 flags = CTL_LLF_FUA; 9169 retval = CTL_RETVAL_COMPLETE; 9170 9171 switch (ctsio->cdb[0]) { 9172 case VERIFY_10: { 9173 struct scsi_verify_10 *cdb; 9174 9175 cdb = (struct scsi_verify_10 *)ctsio->cdb; 9176 if (cdb->byte2 & SVFY_BYTCHK) 9177 bytchk = 1; 9178 if (cdb->byte2 & SVFY_DPO) 9179 flags |= CTL_LLF_DPO; 9180 lba = scsi_4btoul(cdb->addr); 9181 num_blocks = scsi_2btoul(cdb->length); 9182 break; 9183 } 9184 case VERIFY_12: { 9185 struct scsi_verify_12 *cdb; 9186 9187 cdb = (struct scsi_verify_12 *)ctsio->cdb; 9188 if (cdb->byte2 & SVFY_BYTCHK) 9189 bytchk = 1; 9190 if (cdb->byte2 & SVFY_DPO) 9191 flags |= CTL_LLF_DPO; 9192 lba = scsi_4btoul(cdb->addr); 9193 num_blocks = scsi_4btoul(cdb->length); 9194 break; 9195 } 9196 case VERIFY_16: { 9197 struct scsi_rw_16 *cdb; 9198 9199 cdb = (struct scsi_rw_16 *)ctsio->cdb; 9200 if (cdb->byte2 & SVFY_BYTCHK) 9201 bytchk = 1; 9202 if (cdb->byte2 & SVFY_DPO) 9203 flags |= CTL_LLF_DPO; 9204 lba = scsi_8btou64(cdb->addr); 9205 num_blocks = scsi_4btoul(cdb->length); 9206 break; 9207 } 9208 default: 9209 /* 9210 * We got a command we don't support. This shouldn't 9211 * happen, commands should be filtered out above us. 9212 */ 9213 ctl_set_invalid_opcode(ctsio); 9214 ctl_done((union ctl_io *)ctsio); 9215 return (CTL_RETVAL_COMPLETE); 9216 } 9217 9218 /* 9219 * The first check is to make sure we're in bounds, the second 9220 * check is to catch wrap-around problems. If the lba + num blocks 9221 * is less than the lba, then we've wrapped around and the block 9222 * range is invalid anyway. 9223 */ 9224 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 9225 || ((lba + num_blocks) < lba)) { 9226 ctl_set_lba_out_of_range(ctsio); 9227 ctl_done((union ctl_io *)ctsio); 9228 return (CTL_RETVAL_COMPLETE); 9229 } 9230 9231 /* 9232 * According to SBC-3, a transfer length of 0 is not an error. 9233 */ 9234 if (num_blocks == 0) { 9235 ctl_set_success(ctsio); 9236 ctl_done((union ctl_io *)ctsio); 9237 return (CTL_RETVAL_COMPLETE); 9238 } 9239 9240 lbalen = (struct ctl_lba_len_flags *) 9241 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 9242 lbalen->lba = lba; 9243 lbalen->len = num_blocks; 9244 if (bytchk) { 9245 lbalen->flags = CTL_LLF_COMPARE | flags; 9246 ctsio->kern_total_len = num_blocks * lun->be_lun->blocksize; 9247 } else { 9248 lbalen->flags = CTL_LLF_VERIFY | flags; 9249 ctsio->kern_total_len = 0; 9250 } 9251 ctsio->kern_rel_offset = 0; 9252 9253 CTL_DEBUG_PRINT(("ctl_verify: calling data_submit()\n")); 9254 retval = lun->backend->data_submit((union ctl_io *)ctsio); 9255 return (retval); 9256} 9257 9258int 9259ctl_report_luns(struct ctl_scsiio *ctsio) 9260{ 9261 struct ctl_softc *softc = control_softc; 9262 struct scsi_report_luns *cdb; 9263 struct scsi_report_luns_data *lun_data; 9264 struct ctl_lun *lun, *request_lun; 9265 struct ctl_port *port; 9266 int num_luns, retval; 9267 uint32_t alloc_len, lun_datalen; 9268 int num_filled, well_known; 9269 uint32_t initidx, targ_lun_id, lun_id; 9270 9271 retval = CTL_RETVAL_COMPLETE; 9272 well_known = 0; 9273 9274 cdb = (struct scsi_report_luns *)ctsio->cdb; 9275 port = ctl_io_port(&ctsio->io_hdr); 9276 9277 CTL_DEBUG_PRINT(("ctl_report_luns\n")); 9278 9279 mtx_lock(&softc->ctl_lock); 9280 num_luns = 0; 9281 for (targ_lun_id = 0; targ_lun_id < CTL_MAX_LUNS; targ_lun_id++) { 9282 if (ctl_lun_map_from_port(port, targ_lun_id) < CTL_MAX_LUNS) 9283 num_luns++; 9284 } 9285 mtx_unlock(&softc->ctl_lock); 9286 9287 switch (cdb->select_report) { 9288 case RPL_REPORT_DEFAULT: 9289 case RPL_REPORT_ALL: 9290 break; 9291 case RPL_REPORT_WELLKNOWN: 9292 well_known = 1; 9293 num_luns = 0; 9294 break; 9295 default: 9296 ctl_set_invalid_field(ctsio, 9297 /*sks_valid*/ 1, 9298 /*command*/ 1, 9299 /*field*/ 2, 9300 /*bit_valid*/ 0, 9301 /*bit*/ 0); 9302 ctl_done((union ctl_io *)ctsio); 9303 return (retval); 9304 break; /* NOTREACHED */ 9305 } 9306 9307 alloc_len = scsi_4btoul(cdb->length); 9308 /* 9309 * The initiator has to allocate at least 16 bytes for this request, 9310 * so he can at least get the header and the first LUN. Otherwise 9311 * we reject the request (per SPC-3 rev 14, section 6.21). 9312 */ 9313 if (alloc_len < (sizeof(struct scsi_report_luns_data) + 9314 sizeof(struct scsi_report_luns_lundata))) { 9315 ctl_set_invalid_field(ctsio, 9316 /*sks_valid*/ 1, 9317 /*command*/ 1, 9318 /*field*/ 6, 9319 /*bit_valid*/ 0, 9320 /*bit*/ 0); 9321 ctl_done((union ctl_io *)ctsio); 9322 return (retval); 9323 } 9324 9325 request_lun = (struct ctl_lun *) 9326 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9327 9328 lun_datalen = sizeof(*lun_data) + 9329 (num_luns * sizeof(struct scsi_report_luns_lundata)); 9330 9331 ctsio->kern_data_ptr = malloc(lun_datalen, M_CTL, M_WAITOK | M_ZERO); 9332 lun_data = (struct scsi_report_luns_data *)ctsio->kern_data_ptr; 9333 ctsio->kern_sg_entries = 0; 9334 9335 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 9336 9337 mtx_lock(&softc->ctl_lock); 9338 for (targ_lun_id = 0, num_filled = 0; targ_lun_id < CTL_MAX_LUNS && num_filled < num_luns; targ_lun_id++) { 9339 lun_id = ctl_lun_map_from_port(port, targ_lun_id); 9340 if (lun_id >= CTL_MAX_LUNS) 9341 continue; 9342 lun = softc->ctl_luns[lun_id]; 9343 if (lun == NULL) 9344 continue; 9345 9346 if (targ_lun_id <= 0xff) { 9347 /* 9348 * Peripheral addressing method, bus number 0. 9349 */ 9350 lun_data->luns[num_filled].lundata[0] = 9351 RPL_LUNDATA_ATYP_PERIPH; 9352 lun_data->luns[num_filled].lundata[1] = targ_lun_id; 9353 num_filled++; 9354 } else if (targ_lun_id <= 0x3fff) { 9355 /* 9356 * Flat addressing method. 9357 */ 9358 lun_data->luns[num_filled].lundata[0] = 9359 RPL_LUNDATA_ATYP_FLAT | (targ_lun_id >> 8); 9360 lun_data->luns[num_filled].lundata[1] = 9361 (targ_lun_id & 0xff); 9362 num_filled++; 9363 } else if (targ_lun_id <= 0xffffff) { 9364 /* 9365 * Extended flat addressing method. 9366 */ 9367 lun_data->luns[num_filled].lundata[0] = 9368 RPL_LUNDATA_ATYP_EXTLUN | 0x12; 9369 scsi_ulto3b(targ_lun_id, 9370 &lun_data->luns[num_filled].lundata[1]); 9371 num_filled++; 9372 } else { 9373 printf("ctl_report_luns: bogus LUN number %jd, " 9374 "skipping\n", (intmax_t)targ_lun_id); 9375 } 9376 /* 9377 * According to SPC-3, rev 14 section 6.21: 9378 * 9379 * "The execution of a REPORT LUNS command to any valid and 9380 * installed logical unit shall clear the REPORTED LUNS DATA 9381 * HAS CHANGED unit attention condition for all logical 9382 * units of that target with respect to the requesting 9383 * initiator. A valid and installed logical unit is one 9384 * having a PERIPHERAL QUALIFIER of 000b in the standard 9385 * INQUIRY data (see 6.4.2)." 9386 * 9387 * If request_lun is NULL, the LUN this report luns command 9388 * was issued to is either disabled or doesn't exist. In that 9389 * case, we shouldn't clear any pending lun change unit 9390 * attention. 9391 */ 9392 if (request_lun != NULL) { 9393 mtx_lock(&lun->lun_lock); 9394 ctl_clr_ua(lun, initidx, CTL_UA_LUN_CHANGE); 9395 mtx_unlock(&lun->lun_lock); 9396 } 9397 } 9398 mtx_unlock(&softc->ctl_lock); 9399 9400 /* 9401 * It's quite possible that we've returned fewer LUNs than we allocated 9402 * space for. Trim it. 9403 */ 9404 lun_datalen = sizeof(*lun_data) + 9405 (num_filled * sizeof(struct scsi_report_luns_lundata)); 9406 9407 if (lun_datalen < alloc_len) { 9408 ctsio->residual = alloc_len - lun_datalen; 9409 ctsio->kern_data_len = lun_datalen; 9410 ctsio->kern_total_len = lun_datalen; 9411 } else { 9412 ctsio->residual = 0; 9413 ctsio->kern_data_len = alloc_len; 9414 ctsio->kern_total_len = alloc_len; 9415 } 9416 ctsio->kern_data_resid = 0; 9417 ctsio->kern_rel_offset = 0; 9418 ctsio->kern_sg_entries = 0; 9419 9420 /* 9421 * We set this to the actual data length, regardless of how much 9422 * space we actually have to return results. If the user looks at 9423 * this value, he'll know whether or not he allocated enough space 9424 * and reissue the command if necessary. We don't support well 9425 * known logical units, so if the user asks for that, return none. 9426 */ 9427 scsi_ulto4b(lun_datalen - 8, lun_data->length); 9428 9429 /* 9430 * We can only return SCSI_STATUS_CHECK_COND when we can't satisfy 9431 * this request. 9432 */ 9433 ctl_set_success(ctsio); 9434 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9435 ctsio->be_move_done = ctl_config_move_done; 9436 ctl_datamove((union ctl_io *)ctsio); 9437 return (retval); 9438} 9439 9440int 9441ctl_request_sense(struct ctl_scsiio *ctsio) 9442{ 9443 struct scsi_request_sense *cdb; 9444 struct scsi_sense_data *sense_ptr; 9445 struct ctl_softc *ctl_softc; 9446 struct ctl_lun *lun; 9447 uint32_t initidx; 9448 int have_error; 9449 scsi_sense_data_type sense_format; 9450 ctl_ua_type ua_type; 9451 9452 cdb = (struct scsi_request_sense *)ctsio->cdb; 9453 9454 ctl_softc = control_softc; 9455 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9456 9457 CTL_DEBUG_PRINT(("ctl_request_sense\n")); 9458 9459 /* 9460 * Determine which sense format the user wants. 9461 */ 9462 if (cdb->byte2 & SRS_DESC) 9463 sense_format = SSD_TYPE_DESC; 9464 else 9465 sense_format = SSD_TYPE_FIXED; 9466 9467 ctsio->kern_data_ptr = malloc(sizeof(*sense_ptr), M_CTL, M_WAITOK); 9468 sense_ptr = (struct scsi_sense_data *)ctsio->kern_data_ptr; 9469 ctsio->kern_sg_entries = 0; 9470 9471 /* 9472 * struct scsi_sense_data, which is currently set to 256 bytes, is 9473 * larger than the largest allowed value for the length field in the 9474 * REQUEST SENSE CDB, which is 252 bytes as of SPC-4. 9475 */ 9476 ctsio->residual = 0; 9477 ctsio->kern_data_len = cdb->length; 9478 ctsio->kern_total_len = cdb->length; 9479 9480 ctsio->kern_data_resid = 0; 9481 ctsio->kern_rel_offset = 0; 9482 ctsio->kern_sg_entries = 0; 9483 9484 /* 9485 * If we don't have a LUN, we don't have any pending sense. 9486 */ 9487 if (lun == NULL) 9488 goto no_sense; 9489 9490 have_error = 0; 9491 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 9492 /* 9493 * Check for pending sense, and then for pending unit attentions. 9494 * Pending sense gets returned first, then pending unit attentions. 9495 */ 9496 mtx_lock(&lun->lun_lock); 9497#ifdef CTL_WITH_CA 9498 if (ctl_is_set(lun->have_ca, initidx)) { 9499 scsi_sense_data_type stored_format; 9500 9501 /* 9502 * Check to see which sense format was used for the stored 9503 * sense data. 9504 */ 9505 stored_format = scsi_sense_type(&lun->pending_sense[initidx]); 9506 9507 /* 9508 * If the user requested a different sense format than the 9509 * one we stored, then we need to convert it to the other 9510 * format. If we're going from descriptor to fixed format 9511 * sense data, we may lose things in translation, depending 9512 * on what options were used. 9513 * 9514 * If the stored format is SSD_TYPE_NONE (i.e. invalid), 9515 * for some reason we'll just copy it out as-is. 9516 */ 9517 if ((stored_format == SSD_TYPE_FIXED) 9518 && (sense_format == SSD_TYPE_DESC)) 9519 ctl_sense_to_desc((struct scsi_sense_data_fixed *) 9520 &lun->pending_sense[initidx], 9521 (struct scsi_sense_data_desc *)sense_ptr); 9522 else if ((stored_format == SSD_TYPE_DESC) 9523 && (sense_format == SSD_TYPE_FIXED)) 9524 ctl_sense_to_fixed((struct scsi_sense_data_desc *) 9525 &lun->pending_sense[initidx], 9526 (struct scsi_sense_data_fixed *)sense_ptr); 9527 else 9528 memcpy(sense_ptr, &lun->pending_sense[initidx], 9529 MIN(sizeof(*sense_ptr), 9530 sizeof(lun->pending_sense[initidx]))); 9531 9532 ctl_clear_mask(lun->have_ca, initidx); 9533 have_error = 1; 9534 } else 9535#endif 9536 { 9537 ua_type = ctl_build_ua(lun, initidx, sense_ptr, sense_format); 9538 if (ua_type != CTL_UA_NONE) 9539 have_error = 1; 9540 if (ua_type == CTL_UA_LUN_CHANGE) { 9541 mtx_unlock(&lun->lun_lock); 9542 mtx_lock(&ctl_softc->ctl_lock); 9543 ctl_clr_ua_allluns(ctl_softc, initidx, ua_type); 9544 mtx_unlock(&ctl_softc->ctl_lock); 9545 mtx_lock(&lun->lun_lock); 9546 } 9547 9548 } 9549 mtx_unlock(&lun->lun_lock); 9550 9551 /* 9552 * We already have a pending error, return it. 9553 */ 9554 if (have_error != 0) { 9555 /* 9556 * We report the SCSI status as OK, since the status of the 9557 * request sense command itself is OK. 9558 * We report 0 for the sense length, because we aren't doing 9559 * autosense in this case. We're reporting sense as 9560 * parameter data. 9561 */ 9562 ctl_set_success(ctsio); 9563 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9564 ctsio->be_move_done = ctl_config_move_done; 9565 ctl_datamove((union ctl_io *)ctsio); 9566 return (CTL_RETVAL_COMPLETE); 9567 } 9568 9569no_sense: 9570 9571 /* 9572 * No sense information to report, so we report that everything is 9573 * okay. 9574 */ 9575 ctl_set_sense_data(sense_ptr, 9576 lun, 9577 sense_format, 9578 /*current_error*/ 1, 9579 /*sense_key*/ SSD_KEY_NO_SENSE, 9580 /*asc*/ 0x00, 9581 /*ascq*/ 0x00, 9582 SSD_ELEM_NONE); 9583 9584 /* 9585 * We report 0 for the sense length, because we aren't doing 9586 * autosense in this case. We're reporting sense as parameter data. 9587 */ 9588 ctl_set_success(ctsio); 9589 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9590 ctsio->be_move_done = ctl_config_move_done; 9591 ctl_datamove((union ctl_io *)ctsio); 9592 return (CTL_RETVAL_COMPLETE); 9593} 9594 9595int 9596ctl_tur(struct ctl_scsiio *ctsio) 9597{ 9598 9599 CTL_DEBUG_PRINT(("ctl_tur\n")); 9600 9601 ctl_set_success(ctsio); 9602 ctl_done((union ctl_io *)ctsio); 9603 9604 return (CTL_RETVAL_COMPLETE); 9605} 9606 9607/* 9608 * SCSI VPD page 0x00, the Supported VPD Pages page. 9609 */ 9610static int 9611ctl_inquiry_evpd_supported(struct ctl_scsiio *ctsio, int alloc_len) 9612{ 9613 struct scsi_vpd_supported_pages *pages; 9614 int sup_page_size; 9615 struct ctl_lun *lun; 9616 int p; 9617 9618 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9619 9620 sup_page_size = sizeof(struct scsi_vpd_supported_pages) * 9621 SCSI_EVPD_NUM_SUPPORTED_PAGES; 9622 ctsio->kern_data_ptr = malloc(sup_page_size, M_CTL, M_WAITOK | M_ZERO); 9623 pages = (struct scsi_vpd_supported_pages *)ctsio->kern_data_ptr; 9624 ctsio->kern_sg_entries = 0; 9625 9626 if (sup_page_size < alloc_len) { 9627 ctsio->residual = alloc_len - sup_page_size; 9628 ctsio->kern_data_len = sup_page_size; 9629 ctsio->kern_total_len = sup_page_size; 9630 } else { 9631 ctsio->residual = 0; 9632 ctsio->kern_data_len = alloc_len; 9633 ctsio->kern_total_len = alloc_len; 9634 } 9635 ctsio->kern_data_resid = 0; 9636 ctsio->kern_rel_offset = 0; 9637 ctsio->kern_sg_entries = 0; 9638 9639 /* 9640 * The control device is always connected. The disk device, on the 9641 * other hand, may not be online all the time. Need to change this 9642 * to figure out whether the disk device is actually online or not. 9643 */ 9644 if (lun != NULL) 9645 pages->device = (SID_QUAL_LU_CONNECTED << 5) | 9646 lun->be_lun->lun_type; 9647 else 9648 pages->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9649 9650 p = 0; 9651 /* Supported VPD pages */ 9652 pages->page_list[p++] = SVPD_SUPPORTED_PAGES; 9653 /* Serial Number */ 9654 pages->page_list[p++] = SVPD_UNIT_SERIAL_NUMBER; 9655 /* Device Identification */ 9656 pages->page_list[p++] = SVPD_DEVICE_ID; 9657 /* Extended INQUIRY Data */ 9658 pages->page_list[p++] = SVPD_EXTENDED_INQUIRY_DATA; 9659 /* Mode Page Policy */ 9660 pages->page_list[p++] = SVPD_MODE_PAGE_POLICY; 9661 /* SCSI Ports */ 9662 pages->page_list[p++] = SVPD_SCSI_PORTS; 9663 /* Third-party Copy */ 9664 pages->page_list[p++] = SVPD_SCSI_TPC; 9665 if (lun != NULL && lun->be_lun->lun_type == T_DIRECT) { 9666 /* Block limits */ 9667 pages->page_list[p++] = SVPD_BLOCK_LIMITS; 9668 /* Block Device Characteristics */ 9669 pages->page_list[p++] = SVPD_BDC; 9670 /* Logical Block Provisioning */ 9671 pages->page_list[p++] = SVPD_LBP; 9672 } 9673 pages->length = p; 9674 9675 ctl_set_success(ctsio); 9676 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9677 ctsio->be_move_done = ctl_config_move_done; 9678 ctl_datamove((union ctl_io *)ctsio); 9679 return (CTL_RETVAL_COMPLETE); 9680} 9681 9682/* 9683 * SCSI VPD page 0x80, the Unit Serial Number page. 9684 */ 9685static int 9686ctl_inquiry_evpd_serial(struct ctl_scsiio *ctsio, int alloc_len) 9687{ 9688 struct scsi_vpd_unit_serial_number *sn_ptr; 9689 struct ctl_lun *lun; 9690 int data_len; 9691 9692 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9693 9694 data_len = 4 + CTL_SN_LEN; 9695 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9696 sn_ptr = (struct scsi_vpd_unit_serial_number *)ctsio->kern_data_ptr; 9697 if (data_len < alloc_len) { 9698 ctsio->residual = alloc_len - data_len; 9699 ctsio->kern_data_len = data_len; 9700 ctsio->kern_total_len = data_len; 9701 } else { 9702 ctsio->residual = 0; 9703 ctsio->kern_data_len = alloc_len; 9704 ctsio->kern_total_len = alloc_len; 9705 } 9706 ctsio->kern_data_resid = 0; 9707 ctsio->kern_rel_offset = 0; 9708 ctsio->kern_sg_entries = 0; 9709 9710 /* 9711 * The control device is always connected. The disk device, on the 9712 * other hand, may not be online all the time. Need to change this 9713 * to figure out whether the disk device is actually online or not. 9714 */ 9715 if (lun != NULL) 9716 sn_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9717 lun->be_lun->lun_type; 9718 else 9719 sn_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9720 9721 sn_ptr->page_code = SVPD_UNIT_SERIAL_NUMBER; 9722 sn_ptr->length = CTL_SN_LEN; 9723 /* 9724 * If we don't have a LUN, we just leave the serial number as 9725 * all spaces. 9726 */ 9727 if (lun != NULL) { 9728 strncpy((char *)sn_ptr->serial_num, 9729 (char *)lun->be_lun->serial_num, CTL_SN_LEN); 9730 } else 9731 memset(sn_ptr->serial_num, 0x20, CTL_SN_LEN); 9732 9733 ctl_set_success(ctsio); 9734 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9735 ctsio->be_move_done = ctl_config_move_done; 9736 ctl_datamove((union ctl_io *)ctsio); 9737 return (CTL_RETVAL_COMPLETE); 9738} 9739 9740 9741/* 9742 * SCSI VPD page 0x86, the Extended INQUIRY Data page. 9743 */ 9744static int 9745ctl_inquiry_evpd_eid(struct ctl_scsiio *ctsio, int alloc_len) 9746{ 9747 struct scsi_vpd_extended_inquiry_data *eid_ptr; 9748 struct ctl_lun *lun; 9749 int data_len; 9750 9751 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9752 9753 data_len = sizeof(struct scsi_vpd_extended_inquiry_data); 9754 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9755 eid_ptr = (struct scsi_vpd_extended_inquiry_data *)ctsio->kern_data_ptr; 9756 ctsio->kern_sg_entries = 0; 9757 9758 if (data_len < alloc_len) { 9759 ctsio->residual = alloc_len - data_len; 9760 ctsio->kern_data_len = data_len; 9761 ctsio->kern_total_len = data_len; 9762 } else { 9763 ctsio->residual = 0; 9764 ctsio->kern_data_len = alloc_len; 9765 ctsio->kern_total_len = alloc_len; 9766 } 9767 ctsio->kern_data_resid = 0; 9768 ctsio->kern_rel_offset = 0; 9769 ctsio->kern_sg_entries = 0; 9770 9771 /* 9772 * The control device is always connected. The disk device, on the 9773 * other hand, may not be online all the time. 9774 */ 9775 if (lun != NULL) 9776 eid_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9777 lun->be_lun->lun_type; 9778 else 9779 eid_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9780 eid_ptr->page_code = SVPD_EXTENDED_INQUIRY_DATA; 9781 scsi_ulto2b(data_len - 4, eid_ptr->page_length); 9782 /* 9783 * We support head of queue, ordered and simple tags. 9784 */ 9785 eid_ptr->flags2 = SVPD_EID_HEADSUP | SVPD_EID_ORDSUP | SVPD_EID_SIMPSUP; 9786 /* 9787 * Volatile cache supported. 9788 */ 9789 eid_ptr->flags3 = SVPD_EID_V_SUP; 9790 9791 /* 9792 * This means that we clear the REPORTED LUNS DATA HAS CHANGED unit 9793 * attention for a particular IT nexus on all LUNs once we report 9794 * it to that nexus once. This bit is required as of SPC-4. 9795 */ 9796 eid_ptr->flags4 = SVPD_EID_LUICLT; 9797 9798 /* 9799 * XXX KDM in order to correctly answer this, we would need 9800 * information from the SIM to determine how much sense data it 9801 * can send. So this would really be a path inquiry field, most 9802 * likely. This can be set to a maximum of 252 according to SPC-4, 9803 * but the hardware may or may not be able to support that much. 9804 * 0 just means that the maximum sense data length is not reported. 9805 */ 9806 eid_ptr->max_sense_length = 0; 9807 9808 ctl_set_success(ctsio); 9809 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9810 ctsio->be_move_done = ctl_config_move_done; 9811 ctl_datamove((union ctl_io *)ctsio); 9812 return (CTL_RETVAL_COMPLETE); 9813} 9814 9815static int 9816ctl_inquiry_evpd_mpp(struct ctl_scsiio *ctsio, int alloc_len) 9817{ 9818 struct scsi_vpd_mode_page_policy *mpp_ptr; 9819 struct ctl_lun *lun; 9820 int data_len; 9821 9822 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9823 9824 data_len = sizeof(struct scsi_vpd_mode_page_policy) + 9825 sizeof(struct scsi_vpd_mode_page_policy_descr); 9826 9827 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9828 mpp_ptr = (struct scsi_vpd_mode_page_policy *)ctsio->kern_data_ptr; 9829 ctsio->kern_sg_entries = 0; 9830 9831 if (data_len < alloc_len) { 9832 ctsio->residual = alloc_len - data_len; 9833 ctsio->kern_data_len = data_len; 9834 ctsio->kern_total_len = data_len; 9835 } else { 9836 ctsio->residual = 0; 9837 ctsio->kern_data_len = alloc_len; 9838 ctsio->kern_total_len = alloc_len; 9839 } 9840 ctsio->kern_data_resid = 0; 9841 ctsio->kern_rel_offset = 0; 9842 ctsio->kern_sg_entries = 0; 9843 9844 /* 9845 * The control device is always connected. The disk device, on the 9846 * other hand, may not be online all the time. 9847 */ 9848 if (lun != NULL) 9849 mpp_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9850 lun->be_lun->lun_type; 9851 else 9852 mpp_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9853 mpp_ptr->page_code = SVPD_MODE_PAGE_POLICY; 9854 scsi_ulto2b(data_len - 4, mpp_ptr->page_length); 9855 mpp_ptr->descr[0].page_code = 0x3f; 9856 mpp_ptr->descr[0].subpage_code = 0xff; 9857 mpp_ptr->descr[0].policy = SVPD_MPP_SHARED; 9858 9859 ctl_set_success(ctsio); 9860 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9861 ctsio->be_move_done = ctl_config_move_done; 9862 ctl_datamove((union ctl_io *)ctsio); 9863 return (CTL_RETVAL_COMPLETE); 9864} 9865 9866/* 9867 * SCSI VPD page 0x83, the Device Identification page. 9868 */ 9869static int 9870ctl_inquiry_evpd_devid(struct ctl_scsiio *ctsio, int alloc_len) 9871{ 9872 struct scsi_vpd_device_id *devid_ptr; 9873 struct scsi_vpd_id_descriptor *desc; 9874 struct ctl_softc *softc; 9875 struct ctl_lun *lun; 9876 struct ctl_port *port; 9877 int data_len; 9878 uint8_t proto; 9879 9880 softc = control_softc; 9881 9882 port = ctl_io_port(&ctsio->io_hdr); 9883 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9884 9885 data_len = sizeof(struct scsi_vpd_device_id) + 9886 sizeof(struct scsi_vpd_id_descriptor) + 9887 sizeof(struct scsi_vpd_id_rel_trgt_port_id) + 9888 sizeof(struct scsi_vpd_id_descriptor) + 9889 sizeof(struct scsi_vpd_id_trgt_port_grp_id); 9890 if (lun && lun->lun_devid) 9891 data_len += lun->lun_devid->len; 9892 if (port && port->port_devid) 9893 data_len += port->port_devid->len; 9894 if (port && port->target_devid) 9895 data_len += port->target_devid->len; 9896 9897 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9898 devid_ptr = (struct scsi_vpd_device_id *)ctsio->kern_data_ptr; 9899 ctsio->kern_sg_entries = 0; 9900 9901 if (data_len < alloc_len) { 9902 ctsio->residual = alloc_len - data_len; 9903 ctsio->kern_data_len = data_len; 9904 ctsio->kern_total_len = data_len; 9905 } else { 9906 ctsio->residual = 0; 9907 ctsio->kern_data_len = alloc_len; 9908 ctsio->kern_total_len = alloc_len; 9909 } 9910 ctsio->kern_data_resid = 0; 9911 ctsio->kern_rel_offset = 0; 9912 ctsio->kern_sg_entries = 0; 9913 9914 /* 9915 * The control device is always connected. The disk device, on the 9916 * other hand, may not be online all the time. 9917 */ 9918 if (lun != NULL) 9919 devid_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9920 lun->be_lun->lun_type; 9921 else 9922 devid_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9923 devid_ptr->page_code = SVPD_DEVICE_ID; 9924 scsi_ulto2b(data_len - 4, devid_ptr->length); 9925 9926 if (port && port->port_type == CTL_PORT_FC) 9927 proto = SCSI_PROTO_FC << 4; 9928 else if (port && port->port_type == CTL_PORT_ISCSI) 9929 proto = SCSI_PROTO_ISCSI << 4; 9930 else 9931 proto = SCSI_PROTO_SPI << 4; 9932 desc = (struct scsi_vpd_id_descriptor *)devid_ptr->desc_list; 9933 9934 /* 9935 * We're using a LUN association here. i.e., this device ID is a 9936 * per-LUN identifier. 9937 */ 9938 if (lun && lun->lun_devid) { 9939 memcpy(desc, lun->lun_devid->data, lun->lun_devid->len); 9940 desc = (struct scsi_vpd_id_descriptor *)((uint8_t *)desc + 9941 lun->lun_devid->len); 9942 } 9943 9944 /* 9945 * This is for the WWPN which is a port association. 9946 */ 9947 if (port && port->port_devid) { 9948 memcpy(desc, port->port_devid->data, port->port_devid->len); 9949 desc = (struct scsi_vpd_id_descriptor *)((uint8_t *)desc + 9950 port->port_devid->len); 9951 } 9952 9953 /* 9954 * This is for the Relative Target Port(type 4h) identifier 9955 */ 9956 desc->proto_codeset = proto | SVPD_ID_CODESET_BINARY; 9957 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_PORT | 9958 SVPD_ID_TYPE_RELTARG; 9959 desc->length = 4; 9960 scsi_ulto2b(ctsio->io_hdr.nexus.targ_port, &desc->identifier[2]); 9961 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 9962 sizeof(struct scsi_vpd_id_rel_trgt_port_id)); 9963 9964 /* 9965 * This is for the Target Port Group(type 5h) identifier 9966 */ 9967 desc->proto_codeset = proto | SVPD_ID_CODESET_BINARY; 9968 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_PORT | 9969 SVPD_ID_TYPE_TPORTGRP; 9970 desc->length = 4; 9971 scsi_ulto2b(ctsio->io_hdr.nexus.targ_port / softc->port_cnt + 1, 9972 &desc->identifier[2]); 9973 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 9974 sizeof(struct scsi_vpd_id_trgt_port_grp_id)); 9975 9976 /* 9977 * This is for the Target identifier 9978 */ 9979 if (port && port->target_devid) { 9980 memcpy(desc, port->target_devid->data, port->target_devid->len); 9981 } 9982 9983 ctl_set_success(ctsio); 9984 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9985 ctsio->be_move_done = ctl_config_move_done; 9986 ctl_datamove((union ctl_io *)ctsio); 9987 return (CTL_RETVAL_COMPLETE); 9988} 9989 9990static int 9991ctl_inquiry_evpd_scsi_ports(struct ctl_scsiio *ctsio, int alloc_len) 9992{ 9993 struct ctl_softc *softc = control_softc; 9994 struct scsi_vpd_scsi_ports *sp; 9995 struct scsi_vpd_port_designation *pd; 9996 struct scsi_vpd_port_designation_cont *pdc; 9997 struct ctl_lun *lun; 9998 struct ctl_port *port; 9999 int data_len, num_target_ports, iid_len, id_len; 10000 10001 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10002 10003 num_target_ports = 0; 10004 iid_len = 0; 10005 id_len = 0; 10006 mtx_lock(&softc->ctl_lock); 10007 STAILQ_FOREACH(port, &softc->port_list, links) { 10008 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 10009 continue; 10010 if (lun != NULL && 10011 ctl_lun_map_to_port(port, lun->lun) >= CTL_MAX_LUNS) 10012 continue; 10013 num_target_ports++; 10014 if (port->init_devid) 10015 iid_len += port->init_devid->len; 10016 if (port->port_devid) 10017 id_len += port->port_devid->len; 10018 } 10019 mtx_unlock(&softc->ctl_lock); 10020 10021 data_len = sizeof(struct scsi_vpd_scsi_ports) + 10022 num_target_ports * (sizeof(struct scsi_vpd_port_designation) + 10023 sizeof(struct scsi_vpd_port_designation_cont)) + iid_len + id_len; 10024 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 10025 sp = (struct scsi_vpd_scsi_ports *)ctsio->kern_data_ptr; 10026 ctsio->kern_sg_entries = 0; 10027 10028 if (data_len < alloc_len) { 10029 ctsio->residual = alloc_len - data_len; 10030 ctsio->kern_data_len = data_len; 10031 ctsio->kern_total_len = data_len; 10032 } else { 10033 ctsio->residual = 0; 10034 ctsio->kern_data_len = alloc_len; 10035 ctsio->kern_total_len = alloc_len; 10036 } 10037 ctsio->kern_data_resid = 0; 10038 ctsio->kern_rel_offset = 0; 10039 ctsio->kern_sg_entries = 0; 10040 10041 /* 10042 * The control device is always connected. The disk device, on the 10043 * other hand, may not be online all the time. Need to change this 10044 * to figure out whether the disk device is actually online or not. 10045 */ 10046 if (lun != NULL) 10047 sp->device = (SID_QUAL_LU_CONNECTED << 5) | 10048 lun->be_lun->lun_type; 10049 else 10050 sp->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10051 10052 sp->page_code = SVPD_SCSI_PORTS; 10053 scsi_ulto2b(data_len - sizeof(struct scsi_vpd_scsi_ports), 10054 sp->page_length); 10055 pd = &sp->design[0]; 10056 10057 mtx_lock(&softc->ctl_lock); 10058 STAILQ_FOREACH(port, &softc->port_list, links) { 10059 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 10060 continue; 10061 if (lun != NULL && 10062 ctl_lun_map_to_port(port, lun->lun) >= CTL_MAX_LUNS) 10063 continue; 10064 scsi_ulto2b(port->targ_port, pd->relative_port_id); 10065 if (port->init_devid) { 10066 iid_len = port->init_devid->len; 10067 memcpy(pd->initiator_transportid, 10068 port->init_devid->data, port->init_devid->len); 10069 } else 10070 iid_len = 0; 10071 scsi_ulto2b(iid_len, pd->initiator_transportid_length); 10072 pdc = (struct scsi_vpd_port_designation_cont *) 10073 (&pd->initiator_transportid[iid_len]); 10074 if (port->port_devid) { 10075 id_len = port->port_devid->len; 10076 memcpy(pdc->target_port_descriptors, 10077 port->port_devid->data, port->port_devid->len); 10078 } else 10079 id_len = 0; 10080 scsi_ulto2b(id_len, pdc->target_port_descriptors_length); 10081 pd = (struct scsi_vpd_port_designation *) 10082 ((uint8_t *)pdc->target_port_descriptors + id_len); 10083 } 10084 mtx_unlock(&softc->ctl_lock); 10085 10086 ctl_set_success(ctsio); 10087 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10088 ctsio->be_move_done = ctl_config_move_done; 10089 ctl_datamove((union ctl_io *)ctsio); 10090 return (CTL_RETVAL_COMPLETE); 10091} 10092 10093static int 10094ctl_inquiry_evpd_block_limits(struct ctl_scsiio *ctsio, int alloc_len) 10095{ 10096 struct scsi_vpd_block_limits *bl_ptr; 10097 struct ctl_lun *lun; 10098 int bs; 10099 10100 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10101 10102 ctsio->kern_data_ptr = malloc(sizeof(*bl_ptr), M_CTL, M_WAITOK | M_ZERO); 10103 bl_ptr = (struct scsi_vpd_block_limits *)ctsio->kern_data_ptr; 10104 ctsio->kern_sg_entries = 0; 10105 10106 if (sizeof(*bl_ptr) < alloc_len) { 10107 ctsio->residual = alloc_len - sizeof(*bl_ptr); 10108 ctsio->kern_data_len = sizeof(*bl_ptr); 10109 ctsio->kern_total_len = sizeof(*bl_ptr); 10110 } else { 10111 ctsio->residual = 0; 10112 ctsio->kern_data_len = alloc_len; 10113 ctsio->kern_total_len = alloc_len; 10114 } 10115 ctsio->kern_data_resid = 0; 10116 ctsio->kern_rel_offset = 0; 10117 ctsio->kern_sg_entries = 0; 10118 10119 /* 10120 * The control device is always connected. The disk device, on the 10121 * other hand, may not be online all the time. Need to change this 10122 * to figure out whether the disk device is actually online or not. 10123 */ 10124 if (lun != NULL) 10125 bl_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10126 lun->be_lun->lun_type; 10127 else 10128 bl_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10129 10130 bl_ptr->page_code = SVPD_BLOCK_LIMITS; 10131 scsi_ulto2b(sizeof(*bl_ptr) - 4, bl_ptr->page_length); 10132 bl_ptr->max_cmp_write_len = 0xff; 10133 scsi_ulto4b(0xffffffff, bl_ptr->max_txfer_len); 10134 if (lun != NULL) { 10135 bs = lun->be_lun->blocksize; 10136 scsi_ulto4b(lun->be_lun->opttxferlen, bl_ptr->opt_txfer_len); 10137 if (lun->be_lun->flags & CTL_LUN_FLAG_UNMAP) { 10138 scsi_ulto4b(0xffffffff, bl_ptr->max_unmap_lba_cnt); 10139 scsi_ulto4b(0xffffffff, bl_ptr->max_unmap_blk_cnt); 10140 if (lun->be_lun->ublockexp != 0) { 10141 scsi_ulto4b((1 << lun->be_lun->ublockexp), 10142 bl_ptr->opt_unmap_grain); 10143 scsi_ulto4b(0x80000000 | lun->be_lun->ublockoff, 10144 bl_ptr->unmap_grain_align); 10145 } 10146 } 10147 scsi_ulto4b(lun->be_lun->atomicblock, 10148 bl_ptr->max_atomic_transfer_length); 10149 scsi_ulto4b(0, bl_ptr->atomic_alignment); 10150 scsi_ulto4b(0, bl_ptr->atomic_transfer_length_granularity); 10151 } 10152 scsi_u64to8b(UINT64_MAX, bl_ptr->max_write_same_length); 10153 10154 ctl_set_success(ctsio); 10155 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10156 ctsio->be_move_done = ctl_config_move_done; 10157 ctl_datamove((union ctl_io *)ctsio); 10158 return (CTL_RETVAL_COMPLETE); 10159} 10160 10161static int 10162ctl_inquiry_evpd_bdc(struct ctl_scsiio *ctsio, int alloc_len) 10163{ 10164 struct scsi_vpd_block_device_characteristics *bdc_ptr; 10165 struct ctl_lun *lun; 10166 const char *value; 10167 u_int i; 10168 10169 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10170 10171 ctsio->kern_data_ptr = malloc(sizeof(*bdc_ptr), M_CTL, M_WAITOK | M_ZERO); 10172 bdc_ptr = (struct scsi_vpd_block_device_characteristics *)ctsio->kern_data_ptr; 10173 ctsio->kern_sg_entries = 0; 10174 10175 if (sizeof(*bdc_ptr) < alloc_len) { 10176 ctsio->residual = alloc_len - sizeof(*bdc_ptr); 10177 ctsio->kern_data_len = sizeof(*bdc_ptr); 10178 ctsio->kern_total_len = sizeof(*bdc_ptr); 10179 } else { 10180 ctsio->residual = 0; 10181 ctsio->kern_data_len = alloc_len; 10182 ctsio->kern_total_len = alloc_len; 10183 } 10184 ctsio->kern_data_resid = 0; 10185 ctsio->kern_rel_offset = 0; 10186 ctsio->kern_sg_entries = 0; 10187 10188 /* 10189 * The control device is always connected. The disk device, on the 10190 * other hand, may not be online all the time. Need to change this 10191 * to figure out whether the disk device is actually online or not. 10192 */ 10193 if (lun != NULL) 10194 bdc_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10195 lun->be_lun->lun_type; 10196 else 10197 bdc_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10198 bdc_ptr->page_code = SVPD_BDC; 10199 scsi_ulto2b(sizeof(*bdc_ptr) - 4, bdc_ptr->page_length); 10200 if (lun != NULL && 10201 (value = ctl_get_opt(&lun->be_lun->options, "rpm")) != NULL) 10202 i = strtol(value, NULL, 0); 10203 else 10204 i = CTL_DEFAULT_ROTATION_RATE; 10205 scsi_ulto2b(i, bdc_ptr->medium_rotation_rate); 10206 if (lun != NULL && 10207 (value = ctl_get_opt(&lun->be_lun->options, "formfactor")) != NULL) 10208 i = strtol(value, NULL, 0); 10209 else 10210 i = 0; 10211 bdc_ptr->wab_wac_ff = (i & 0x0f); 10212 bdc_ptr->flags = SVPD_FUAB | SVPD_VBULS; 10213 10214 ctl_set_success(ctsio); 10215 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10216 ctsio->be_move_done = ctl_config_move_done; 10217 ctl_datamove((union ctl_io *)ctsio); 10218 return (CTL_RETVAL_COMPLETE); 10219} 10220 10221static int 10222ctl_inquiry_evpd_lbp(struct ctl_scsiio *ctsio, int alloc_len) 10223{ 10224 struct scsi_vpd_logical_block_prov *lbp_ptr; 10225 struct ctl_lun *lun; 10226 10227 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10228 10229 ctsio->kern_data_ptr = malloc(sizeof(*lbp_ptr), M_CTL, M_WAITOK | M_ZERO); 10230 lbp_ptr = (struct scsi_vpd_logical_block_prov *)ctsio->kern_data_ptr; 10231 ctsio->kern_sg_entries = 0; 10232 10233 if (sizeof(*lbp_ptr) < alloc_len) { 10234 ctsio->residual = alloc_len - sizeof(*lbp_ptr); 10235 ctsio->kern_data_len = sizeof(*lbp_ptr); 10236 ctsio->kern_total_len = sizeof(*lbp_ptr); 10237 } else { 10238 ctsio->residual = 0; 10239 ctsio->kern_data_len = alloc_len; 10240 ctsio->kern_total_len = alloc_len; 10241 } 10242 ctsio->kern_data_resid = 0; 10243 ctsio->kern_rel_offset = 0; 10244 ctsio->kern_sg_entries = 0; 10245 10246 /* 10247 * The control device is always connected. The disk device, on the 10248 * other hand, may not be online all the time. Need to change this 10249 * to figure out whether the disk device is actually online or not. 10250 */ 10251 if (lun != NULL) 10252 lbp_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10253 lun->be_lun->lun_type; 10254 else 10255 lbp_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10256 10257 lbp_ptr->page_code = SVPD_LBP; 10258 scsi_ulto2b(sizeof(*lbp_ptr) - 4, lbp_ptr->page_length); 10259 lbp_ptr->threshold_exponent = CTL_LBP_EXPONENT; 10260 if (lun != NULL && lun->be_lun->flags & CTL_LUN_FLAG_UNMAP) { 10261 lbp_ptr->flags = SVPD_LBP_UNMAP | SVPD_LBP_WS16 | 10262 SVPD_LBP_WS10 | SVPD_LBP_RZ | SVPD_LBP_ANC_SUP; 10263 lbp_ptr->prov_type = SVPD_LBP_THIN; 10264 } 10265 10266 ctl_set_success(ctsio); 10267 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10268 ctsio->be_move_done = ctl_config_move_done; 10269 ctl_datamove((union ctl_io *)ctsio); 10270 return (CTL_RETVAL_COMPLETE); 10271} 10272 10273/* 10274 * INQUIRY with the EVPD bit set. 10275 */ 10276static int 10277ctl_inquiry_evpd(struct ctl_scsiio *ctsio) 10278{ 10279 struct ctl_lun *lun; 10280 struct scsi_inquiry *cdb; 10281 int alloc_len, retval; 10282 10283 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10284 cdb = (struct scsi_inquiry *)ctsio->cdb; 10285 alloc_len = scsi_2btoul(cdb->length); 10286 10287 switch (cdb->page_code) { 10288 case SVPD_SUPPORTED_PAGES: 10289 retval = ctl_inquiry_evpd_supported(ctsio, alloc_len); 10290 break; 10291 case SVPD_UNIT_SERIAL_NUMBER: 10292 retval = ctl_inquiry_evpd_serial(ctsio, alloc_len); 10293 break; 10294 case SVPD_DEVICE_ID: 10295 retval = ctl_inquiry_evpd_devid(ctsio, alloc_len); 10296 break; 10297 case SVPD_EXTENDED_INQUIRY_DATA: 10298 retval = ctl_inquiry_evpd_eid(ctsio, alloc_len); 10299 break; 10300 case SVPD_MODE_PAGE_POLICY: 10301 retval = ctl_inquiry_evpd_mpp(ctsio, alloc_len); 10302 break; 10303 case SVPD_SCSI_PORTS: 10304 retval = ctl_inquiry_evpd_scsi_ports(ctsio, alloc_len); 10305 break; 10306 case SVPD_SCSI_TPC: 10307 retval = ctl_inquiry_evpd_tpc(ctsio, alloc_len); 10308 break; 10309 case SVPD_BLOCK_LIMITS: 10310 if (lun == NULL || lun->be_lun->lun_type != T_DIRECT) 10311 goto err; 10312 retval = ctl_inquiry_evpd_block_limits(ctsio, alloc_len); 10313 break; 10314 case SVPD_BDC: 10315 if (lun == NULL || lun->be_lun->lun_type != T_DIRECT) 10316 goto err; 10317 retval = ctl_inquiry_evpd_bdc(ctsio, alloc_len); 10318 break; 10319 case SVPD_LBP: 10320 if (lun == NULL || lun->be_lun->lun_type != T_DIRECT) 10321 goto err; 10322 retval = ctl_inquiry_evpd_lbp(ctsio, alloc_len); 10323 break; 10324 default: 10325err: 10326 ctl_set_invalid_field(ctsio, 10327 /*sks_valid*/ 1, 10328 /*command*/ 1, 10329 /*field*/ 2, 10330 /*bit_valid*/ 0, 10331 /*bit*/ 0); 10332 ctl_done((union ctl_io *)ctsio); 10333 retval = CTL_RETVAL_COMPLETE; 10334 break; 10335 } 10336 10337 return (retval); 10338} 10339 10340/* 10341 * Standard INQUIRY data. 10342 */ 10343static int 10344ctl_inquiry_std(struct ctl_scsiio *ctsio) 10345{ 10346 struct scsi_inquiry_data *inq_ptr; 10347 struct scsi_inquiry *cdb; 10348 struct ctl_softc *softc; 10349 struct ctl_port *port; 10350 struct ctl_lun *lun; 10351 char *val; 10352 uint32_t alloc_len, data_len; 10353 ctl_port_type port_type; 10354 10355 softc = control_softc; 10356 10357 /* 10358 * Figure out whether we're talking to a Fibre Channel port or not. 10359 * We treat the ioctl front end, and any SCSI adapters, as packetized 10360 * SCSI front ends. 10361 */ 10362 port = ctl_io_port(&ctsio->io_hdr); 10363 if (port != NULL) 10364 port_type = port->port_type; 10365 else 10366 port_type = CTL_PORT_SCSI; 10367 if (port_type == CTL_PORT_IOCTL || port_type == CTL_PORT_INTERNAL) 10368 port_type = CTL_PORT_SCSI; 10369 10370 lun = ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10371 cdb = (struct scsi_inquiry *)ctsio->cdb; 10372 alloc_len = scsi_2btoul(cdb->length); 10373 10374 /* 10375 * We malloc the full inquiry data size here and fill it 10376 * in. If the user only asks for less, we'll give him 10377 * that much. 10378 */ 10379 data_len = offsetof(struct scsi_inquiry_data, vendor_specific1); 10380 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 10381 inq_ptr = (struct scsi_inquiry_data *)ctsio->kern_data_ptr; 10382 ctsio->kern_sg_entries = 0; 10383 ctsio->kern_data_resid = 0; 10384 ctsio->kern_rel_offset = 0; 10385 10386 if (data_len < alloc_len) { 10387 ctsio->residual = alloc_len - data_len; 10388 ctsio->kern_data_len = data_len; 10389 ctsio->kern_total_len = data_len; 10390 } else { 10391 ctsio->residual = 0; 10392 ctsio->kern_data_len = alloc_len; 10393 ctsio->kern_total_len = alloc_len; 10394 } 10395 10396 if (lun != NULL) { 10397 if ((lun->flags & CTL_LUN_PRIMARY_SC) || 10398 softc->ha_link >= CTL_HA_LINK_UNKNOWN) { 10399 inq_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10400 lun->be_lun->lun_type; 10401 } else { 10402 inq_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | 10403 lun->be_lun->lun_type; 10404 } 10405 } else 10406 inq_ptr->device = (SID_QUAL_BAD_LU << 5) | T_NODEVICE; 10407 10408 /* RMB in byte 2 is 0 */ 10409 inq_ptr->version = SCSI_REV_SPC4; 10410 10411 /* 10412 * According to SAM-3, even if a device only supports a single 10413 * level of LUN addressing, it should still set the HISUP bit: 10414 * 10415 * 4.9.1 Logical unit numbers overview 10416 * 10417 * All logical unit number formats described in this standard are 10418 * hierarchical in structure even when only a single level in that 10419 * hierarchy is used. The HISUP bit shall be set to one in the 10420 * standard INQUIRY data (see SPC-2) when any logical unit number 10421 * format described in this standard is used. Non-hierarchical 10422 * formats are outside the scope of this standard. 10423 * 10424 * Therefore we set the HiSup bit here. 10425 * 10426 * The reponse format is 2, per SPC-3. 10427 */ 10428 inq_ptr->response_format = SID_HiSup | 2; 10429 10430 inq_ptr->additional_length = data_len - 10431 (offsetof(struct scsi_inquiry_data, additional_length) + 1); 10432 CTL_DEBUG_PRINT(("additional_length = %d\n", 10433 inq_ptr->additional_length)); 10434 10435 inq_ptr->spc3_flags = SPC3_SID_3PC | SPC3_SID_TPGS_IMPLICIT; 10436 /* 16 bit addressing */ 10437 if (port_type == CTL_PORT_SCSI) 10438 inq_ptr->spc2_flags = SPC2_SID_ADDR16; 10439 /* XXX set the SID_MultiP bit here if we're actually going to 10440 respond on multiple ports */ 10441 inq_ptr->spc2_flags |= SPC2_SID_MultiP; 10442 10443 /* 16 bit data bus, synchronous transfers */ 10444 if (port_type == CTL_PORT_SCSI) 10445 inq_ptr->flags = SID_WBus16 | SID_Sync; 10446 /* 10447 * XXX KDM do we want to support tagged queueing on the control 10448 * device at all? 10449 */ 10450 if ((lun == NULL) 10451 || (lun->be_lun->lun_type != T_PROCESSOR)) 10452 inq_ptr->flags |= SID_CmdQue; 10453 /* 10454 * Per SPC-3, unused bytes in ASCII strings are filled with spaces. 10455 * We have 8 bytes for the vendor name, and 16 bytes for the device 10456 * name and 4 bytes for the revision. 10457 */ 10458 if (lun == NULL || (val = ctl_get_opt(&lun->be_lun->options, 10459 "vendor")) == NULL) { 10460 strncpy(inq_ptr->vendor, CTL_VENDOR, sizeof(inq_ptr->vendor)); 10461 } else { 10462 memset(inq_ptr->vendor, ' ', sizeof(inq_ptr->vendor)); 10463 strncpy(inq_ptr->vendor, val, 10464 min(sizeof(inq_ptr->vendor), strlen(val))); 10465 } 10466 if (lun == NULL) { 10467 strncpy(inq_ptr->product, CTL_DIRECT_PRODUCT, 10468 sizeof(inq_ptr->product)); 10469 } else if ((val = ctl_get_opt(&lun->be_lun->options, "product")) == NULL) { 10470 switch (lun->be_lun->lun_type) { 10471 case T_DIRECT: 10472 strncpy(inq_ptr->product, CTL_DIRECT_PRODUCT, 10473 sizeof(inq_ptr->product)); 10474 break; 10475 case T_PROCESSOR: 10476 strncpy(inq_ptr->product, CTL_PROCESSOR_PRODUCT, 10477 sizeof(inq_ptr->product)); 10478 break; 10479 default: 10480 strncpy(inq_ptr->product, CTL_UNKNOWN_PRODUCT, 10481 sizeof(inq_ptr->product)); 10482 break; 10483 } 10484 } else { 10485 memset(inq_ptr->product, ' ', sizeof(inq_ptr->product)); 10486 strncpy(inq_ptr->product, val, 10487 min(sizeof(inq_ptr->product), strlen(val))); 10488 } 10489 10490 /* 10491 * XXX make this a macro somewhere so it automatically gets 10492 * incremented when we make changes. 10493 */ 10494 if (lun == NULL || (val = ctl_get_opt(&lun->be_lun->options, 10495 "revision")) == NULL) { 10496 strncpy(inq_ptr->revision, "0001", sizeof(inq_ptr->revision)); 10497 } else { 10498 memset(inq_ptr->revision, ' ', sizeof(inq_ptr->revision)); 10499 strncpy(inq_ptr->revision, val, 10500 min(sizeof(inq_ptr->revision), strlen(val))); 10501 } 10502 10503 /* 10504 * For parallel SCSI, we support double transition and single 10505 * transition clocking. We also support QAS (Quick Arbitration 10506 * and Selection) and Information Unit transfers on both the 10507 * control and array devices. 10508 */ 10509 if (port_type == CTL_PORT_SCSI) 10510 inq_ptr->spi3data = SID_SPI_CLOCK_DT_ST | SID_SPI_QAS | 10511 SID_SPI_IUS; 10512 10513 /* SAM-5 (no version claimed) */ 10514 scsi_ulto2b(0x00A0, inq_ptr->version1); 10515 /* SPC-4 (no version claimed) */ 10516 scsi_ulto2b(0x0460, inq_ptr->version2); 10517 if (port_type == CTL_PORT_FC) { 10518 /* FCP-2 ANSI INCITS.350:2003 */ 10519 scsi_ulto2b(0x0917, inq_ptr->version3); 10520 } else if (port_type == CTL_PORT_SCSI) { 10521 /* SPI-4 ANSI INCITS.362:200x */ 10522 scsi_ulto2b(0x0B56, inq_ptr->version3); 10523 } else if (port_type == CTL_PORT_ISCSI) { 10524 /* iSCSI (no version claimed) */ 10525 scsi_ulto2b(0x0960, inq_ptr->version3); 10526 } else if (port_type == CTL_PORT_SAS) { 10527 /* SAS (no version claimed) */ 10528 scsi_ulto2b(0x0BE0, inq_ptr->version3); 10529 } 10530 10531 if (lun == NULL) { 10532 /* SBC-4 (no version claimed) */ 10533 scsi_ulto2b(0x0600, inq_ptr->version4); 10534 } else { 10535 switch (lun->be_lun->lun_type) { 10536 case T_DIRECT: 10537 /* SBC-4 (no version claimed) */ 10538 scsi_ulto2b(0x0600, inq_ptr->version4); 10539 break; 10540 case T_PROCESSOR: 10541 default: 10542 break; 10543 } 10544 } 10545 10546 ctl_set_success(ctsio); 10547 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10548 ctsio->be_move_done = ctl_config_move_done; 10549 ctl_datamove((union ctl_io *)ctsio); 10550 return (CTL_RETVAL_COMPLETE); 10551} 10552 10553int 10554ctl_inquiry(struct ctl_scsiio *ctsio) 10555{ 10556 struct scsi_inquiry *cdb; 10557 int retval; 10558 10559 CTL_DEBUG_PRINT(("ctl_inquiry\n")); 10560 10561 cdb = (struct scsi_inquiry *)ctsio->cdb; 10562 if (cdb->byte2 & SI_EVPD) 10563 retval = ctl_inquiry_evpd(ctsio); 10564 else if (cdb->page_code == 0) 10565 retval = ctl_inquiry_std(ctsio); 10566 else { 10567 ctl_set_invalid_field(ctsio, 10568 /*sks_valid*/ 1, 10569 /*command*/ 1, 10570 /*field*/ 2, 10571 /*bit_valid*/ 0, 10572 /*bit*/ 0); 10573 ctl_done((union ctl_io *)ctsio); 10574 return (CTL_RETVAL_COMPLETE); 10575 } 10576 10577 return (retval); 10578} 10579 10580/* 10581 * For known CDB types, parse the LBA and length. 10582 */ 10583static int 10584ctl_get_lba_len(union ctl_io *io, uint64_t *lba, uint64_t *len) 10585{ 10586 if (io->io_hdr.io_type != CTL_IO_SCSI) 10587 return (1); 10588 10589 switch (io->scsiio.cdb[0]) { 10590 case COMPARE_AND_WRITE: { 10591 struct scsi_compare_and_write *cdb; 10592 10593 cdb = (struct scsi_compare_and_write *)io->scsiio.cdb; 10594 10595 *lba = scsi_8btou64(cdb->addr); 10596 *len = cdb->length; 10597 break; 10598 } 10599 case READ_6: 10600 case WRITE_6: { 10601 struct scsi_rw_6 *cdb; 10602 10603 cdb = (struct scsi_rw_6 *)io->scsiio.cdb; 10604 10605 *lba = scsi_3btoul(cdb->addr); 10606 /* only 5 bits are valid in the most significant address byte */ 10607 *lba &= 0x1fffff; 10608 *len = cdb->length; 10609 break; 10610 } 10611 case READ_10: 10612 case WRITE_10: { 10613 struct scsi_rw_10 *cdb; 10614 10615 cdb = (struct scsi_rw_10 *)io->scsiio.cdb; 10616 10617 *lba = scsi_4btoul(cdb->addr); 10618 *len = scsi_2btoul(cdb->length); 10619 break; 10620 } 10621 case WRITE_VERIFY_10: { 10622 struct scsi_write_verify_10 *cdb; 10623 10624 cdb = (struct scsi_write_verify_10 *)io->scsiio.cdb; 10625 10626 *lba = scsi_4btoul(cdb->addr); 10627 *len = scsi_2btoul(cdb->length); 10628 break; 10629 } 10630 case READ_12: 10631 case WRITE_12: { 10632 struct scsi_rw_12 *cdb; 10633 10634 cdb = (struct scsi_rw_12 *)io->scsiio.cdb; 10635 10636 *lba = scsi_4btoul(cdb->addr); 10637 *len = scsi_4btoul(cdb->length); 10638 break; 10639 } 10640 case WRITE_VERIFY_12: { 10641 struct scsi_write_verify_12 *cdb; 10642 10643 cdb = (struct scsi_write_verify_12 *)io->scsiio.cdb; 10644 10645 *lba = scsi_4btoul(cdb->addr); 10646 *len = scsi_4btoul(cdb->length); 10647 break; 10648 } 10649 case READ_16: 10650 case WRITE_16: 10651 case WRITE_ATOMIC_16: { 10652 struct scsi_rw_16 *cdb; 10653 10654 cdb = (struct scsi_rw_16 *)io->scsiio.cdb; 10655 10656 *lba = scsi_8btou64(cdb->addr); 10657 *len = scsi_4btoul(cdb->length); 10658 break; 10659 } 10660 case WRITE_VERIFY_16: { 10661 struct scsi_write_verify_16 *cdb; 10662 10663 cdb = (struct scsi_write_verify_16 *)io->scsiio.cdb; 10664 10665 *lba = scsi_8btou64(cdb->addr); 10666 *len = scsi_4btoul(cdb->length); 10667 break; 10668 } 10669 case WRITE_SAME_10: { 10670 struct scsi_write_same_10 *cdb; 10671 10672 cdb = (struct scsi_write_same_10 *)io->scsiio.cdb; 10673 10674 *lba = scsi_4btoul(cdb->addr); 10675 *len = scsi_2btoul(cdb->length); 10676 break; 10677 } 10678 case WRITE_SAME_16: { 10679 struct scsi_write_same_16 *cdb; 10680 10681 cdb = (struct scsi_write_same_16 *)io->scsiio.cdb; 10682 10683 *lba = scsi_8btou64(cdb->addr); 10684 *len = scsi_4btoul(cdb->length); 10685 break; 10686 } 10687 case VERIFY_10: { 10688 struct scsi_verify_10 *cdb; 10689 10690 cdb = (struct scsi_verify_10 *)io->scsiio.cdb; 10691 10692 *lba = scsi_4btoul(cdb->addr); 10693 *len = scsi_2btoul(cdb->length); 10694 break; 10695 } 10696 case VERIFY_12: { 10697 struct scsi_verify_12 *cdb; 10698 10699 cdb = (struct scsi_verify_12 *)io->scsiio.cdb; 10700 10701 *lba = scsi_4btoul(cdb->addr); 10702 *len = scsi_4btoul(cdb->length); 10703 break; 10704 } 10705 case VERIFY_16: { 10706 struct scsi_verify_16 *cdb; 10707 10708 cdb = (struct scsi_verify_16 *)io->scsiio.cdb; 10709 10710 *lba = scsi_8btou64(cdb->addr); 10711 *len = scsi_4btoul(cdb->length); 10712 break; 10713 } 10714 case UNMAP: { 10715 *lba = 0; 10716 *len = UINT64_MAX; 10717 break; 10718 } 10719 case SERVICE_ACTION_IN: { /* GET LBA STATUS */ 10720 struct scsi_get_lba_status *cdb; 10721 10722 cdb = (struct scsi_get_lba_status *)io->scsiio.cdb; 10723 *lba = scsi_8btou64(cdb->addr); 10724 *len = UINT32_MAX; 10725 break; 10726 } 10727 default: 10728 return (1); 10729 break; /* NOTREACHED */ 10730 } 10731 10732 return (0); 10733} 10734 10735static ctl_action 10736ctl_extent_check_lba(uint64_t lba1, uint64_t len1, uint64_t lba2, uint64_t len2, 10737 bool seq) 10738{ 10739 uint64_t endlba1, endlba2; 10740 10741 endlba1 = lba1 + len1 - (seq ? 0 : 1); 10742 endlba2 = lba2 + len2 - 1; 10743 10744 if ((endlba1 < lba2) || (endlba2 < lba1)) 10745 return (CTL_ACTION_PASS); 10746 else 10747 return (CTL_ACTION_BLOCK); 10748} 10749 10750static int 10751ctl_extent_check_unmap(union ctl_io *io, uint64_t lba2, uint64_t len2) 10752{ 10753 struct ctl_ptr_len_flags *ptrlen; 10754 struct scsi_unmap_desc *buf, *end, *range; 10755 uint64_t lba; 10756 uint32_t len; 10757 10758 /* If not UNMAP -- go other way. */ 10759 if (io->io_hdr.io_type != CTL_IO_SCSI || 10760 io->scsiio.cdb[0] != UNMAP) 10761 return (CTL_ACTION_ERROR); 10762 10763 /* If UNMAP without data -- block and wait for data. */ 10764 ptrlen = (struct ctl_ptr_len_flags *) 10765 &io->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 10766 if ((io->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0 || 10767 ptrlen->ptr == NULL) 10768 return (CTL_ACTION_BLOCK); 10769 10770 /* UNMAP with data -- check for collision. */ 10771 buf = (struct scsi_unmap_desc *)ptrlen->ptr; 10772 end = buf + ptrlen->len / sizeof(*buf); 10773 for (range = buf; range < end; range++) { 10774 lba = scsi_8btou64(range->lba); 10775 len = scsi_4btoul(range->length); 10776 if ((lba < lba2 + len2) && (lba + len > lba2)) 10777 return (CTL_ACTION_BLOCK); 10778 } 10779 return (CTL_ACTION_PASS); 10780} 10781 10782static ctl_action 10783ctl_extent_check(union ctl_io *io1, union ctl_io *io2, bool seq) 10784{ 10785 uint64_t lba1, lba2; 10786 uint64_t len1, len2; 10787 int retval; 10788 10789 if (ctl_get_lba_len(io2, &lba2, &len2) != 0) 10790 return (CTL_ACTION_ERROR); 10791 10792 retval = ctl_extent_check_unmap(io1, lba2, len2); 10793 if (retval != CTL_ACTION_ERROR) 10794 return (retval); 10795 10796 if (ctl_get_lba_len(io1, &lba1, &len1) != 0) 10797 return (CTL_ACTION_ERROR); 10798 10799 if (io1->io_hdr.flags & CTL_FLAG_SERSEQ_DONE) 10800 seq = FALSE; 10801 return (ctl_extent_check_lba(lba1, len1, lba2, len2, seq)); 10802} 10803 10804static ctl_action 10805ctl_extent_check_seq(union ctl_io *io1, union ctl_io *io2) 10806{ 10807 uint64_t lba1, lba2; 10808 uint64_t len1, len2; 10809 10810 if (io1->io_hdr.flags & CTL_FLAG_SERSEQ_DONE) 10811 return (CTL_ACTION_PASS); 10812 if (ctl_get_lba_len(io1, &lba1, &len1) != 0) 10813 return (CTL_ACTION_ERROR); 10814 if (ctl_get_lba_len(io2, &lba2, &len2) != 0) 10815 return (CTL_ACTION_ERROR); 10816 10817 if (lba1 + len1 == lba2) 10818 return (CTL_ACTION_BLOCK); 10819 return (CTL_ACTION_PASS); 10820} 10821 10822static ctl_action 10823ctl_check_for_blockage(struct ctl_lun *lun, union ctl_io *pending_io, 10824 union ctl_io *ooa_io) 10825{ 10826 const struct ctl_cmd_entry *pending_entry, *ooa_entry; 10827 ctl_serialize_action *serialize_row; 10828 10829 /* 10830 * The initiator attempted multiple untagged commands at the same 10831 * time. Can't do that. 10832 */ 10833 if ((pending_io->scsiio.tag_type == CTL_TAG_UNTAGGED) 10834 && (ooa_io->scsiio.tag_type == CTL_TAG_UNTAGGED) 10835 && ((pending_io->io_hdr.nexus.targ_port == 10836 ooa_io->io_hdr.nexus.targ_port) 10837 && (pending_io->io_hdr.nexus.initid == 10838 ooa_io->io_hdr.nexus.initid)) 10839 && ((ooa_io->io_hdr.flags & (CTL_FLAG_ABORT | 10840 CTL_FLAG_STATUS_SENT)) == 0)) 10841 return (CTL_ACTION_OVERLAP); 10842 10843 /* 10844 * The initiator attempted to send multiple tagged commands with 10845 * the same ID. (It's fine if different initiators have the same 10846 * tag ID.) 10847 * 10848 * Even if all of those conditions are true, we don't kill the I/O 10849 * if the command ahead of us has been aborted. We won't end up 10850 * sending it to the FETD, and it's perfectly legal to resend a 10851 * command with the same tag number as long as the previous 10852 * instance of this tag number has been aborted somehow. 10853 */ 10854 if ((pending_io->scsiio.tag_type != CTL_TAG_UNTAGGED) 10855 && (ooa_io->scsiio.tag_type != CTL_TAG_UNTAGGED) 10856 && (pending_io->scsiio.tag_num == ooa_io->scsiio.tag_num) 10857 && ((pending_io->io_hdr.nexus.targ_port == 10858 ooa_io->io_hdr.nexus.targ_port) 10859 && (pending_io->io_hdr.nexus.initid == 10860 ooa_io->io_hdr.nexus.initid)) 10861 && ((ooa_io->io_hdr.flags & (CTL_FLAG_ABORT | 10862 CTL_FLAG_STATUS_SENT)) == 0)) 10863 return (CTL_ACTION_OVERLAP_TAG); 10864 10865 /* 10866 * If we get a head of queue tag, SAM-3 says that we should 10867 * immediately execute it. 10868 * 10869 * What happens if this command would normally block for some other 10870 * reason? e.g. a request sense with a head of queue tag 10871 * immediately after a write. Normally that would block, but this 10872 * will result in its getting executed immediately... 10873 * 10874 * We currently return "pass" instead of "skip", so we'll end up 10875 * going through the rest of the queue to check for overlapped tags. 10876 * 10877 * XXX KDM check for other types of blockage first?? 10878 */ 10879 if (pending_io->scsiio.tag_type == CTL_TAG_HEAD_OF_QUEUE) 10880 return (CTL_ACTION_PASS); 10881 10882 /* 10883 * Ordered tags have to block until all items ahead of them 10884 * have completed. If we get called with an ordered tag, we always 10885 * block, if something else is ahead of us in the queue. 10886 */ 10887 if (pending_io->scsiio.tag_type == CTL_TAG_ORDERED) 10888 return (CTL_ACTION_BLOCK); 10889 10890 /* 10891 * Simple tags get blocked until all head of queue and ordered tags 10892 * ahead of them have completed. I'm lumping untagged commands in 10893 * with simple tags here. XXX KDM is that the right thing to do? 10894 */ 10895 if (((pending_io->scsiio.tag_type == CTL_TAG_UNTAGGED) 10896 || (pending_io->scsiio.tag_type == CTL_TAG_SIMPLE)) 10897 && ((ooa_io->scsiio.tag_type == CTL_TAG_HEAD_OF_QUEUE) 10898 || (ooa_io->scsiio.tag_type == CTL_TAG_ORDERED))) 10899 return (CTL_ACTION_BLOCK); 10900 10901 pending_entry = ctl_get_cmd_entry(&pending_io->scsiio, NULL); 10902 ooa_entry = ctl_get_cmd_entry(&ooa_io->scsiio, NULL); 10903 10904 serialize_row = ctl_serialize_table[ooa_entry->seridx]; 10905 10906 switch (serialize_row[pending_entry->seridx]) { 10907 case CTL_SER_BLOCK: 10908 return (CTL_ACTION_BLOCK); 10909 case CTL_SER_EXTENT: 10910 return (ctl_extent_check(ooa_io, pending_io, 10911 (lun->be_lun && lun->be_lun->serseq == CTL_LUN_SERSEQ_ON))); 10912 case CTL_SER_EXTENTOPT: 10913 if ((lun->mode_pages.control_page[CTL_PAGE_CURRENT].queue_flags 10914 & SCP_QUEUE_ALG_MASK) != SCP_QUEUE_ALG_UNRESTRICTED) 10915 return (ctl_extent_check(ooa_io, pending_io, 10916 (lun->be_lun && 10917 lun->be_lun->serseq == CTL_LUN_SERSEQ_ON))); 10918 return (CTL_ACTION_PASS); 10919 case CTL_SER_EXTENTSEQ: 10920 if (lun->be_lun && lun->be_lun->serseq != CTL_LUN_SERSEQ_OFF) 10921 return (ctl_extent_check_seq(ooa_io, pending_io)); 10922 return (CTL_ACTION_PASS); 10923 case CTL_SER_PASS: 10924 return (CTL_ACTION_PASS); 10925 case CTL_SER_BLOCKOPT: 10926 if ((lun->mode_pages.control_page[CTL_PAGE_CURRENT].queue_flags 10927 & SCP_QUEUE_ALG_MASK) != SCP_QUEUE_ALG_UNRESTRICTED) 10928 return (CTL_ACTION_BLOCK); 10929 return (CTL_ACTION_PASS); 10930 case CTL_SER_SKIP: 10931 return (CTL_ACTION_SKIP); 10932 default: 10933 panic("invalid serialization value %d", 10934 serialize_row[pending_entry->seridx]); 10935 } 10936 10937 return (CTL_ACTION_ERROR); 10938} 10939 10940/* 10941 * Check for blockage or overlaps against the OOA (Order Of Arrival) queue. 10942 * Assumptions: 10943 * - pending_io is generally either incoming, or on the blocked queue 10944 * - starting I/O is the I/O we want to start the check with. 10945 */ 10946static ctl_action 10947ctl_check_ooa(struct ctl_lun *lun, union ctl_io *pending_io, 10948 union ctl_io *starting_io) 10949{ 10950 union ctl_io *ooa_io; 10951 ctl_action action; 10952 10953 mtx_assert(&lun->lun_lock, MA_OWNED); 10954 10955 /* 10956 * Run back along the OOA queue, starting with the current 10957 * blocked I/O and going through every I/O before it on the 10958 * queue. If starting_io is NULL, we'll just end up returning 10959 * CTL_ACTION_PASS. 10960 */ 10961 for (ooa_io = starting_io; ooa_io != NULL; 10962 ooa_io = (union ctl_io *)TAILQ_PREV(&ooa_io->io_hdr, ctl_ooaq, 10963 ooa_links)){ 10964 10965 /* 10966 * This routine just checks to see whether 10967 * cur_blocked is blocked by ooa_io, which is ahead 10968 * of it in the queue. It doesn't queue/dequeue 10969 * cur_blocked. 10970 */ 10971 action = ctl_check_for_blockage(lun, pending_io, ooa_io); 10972 switch (action) { 10973 case CTL_ACTION_BLOCK: 10974 case CTL_ACTION_OVERLAP: 10975 case CTL_ACTION_OVERLAP_TAG: 10976 case CTL_ACTION_SKIP: 10977 case CTL_ACTION_ERROR: 10978 return (action); 10979 break; /* NOTREACHED */ 10980 case CTL_ACTION_PASS: 10981 break; 10982 default: 10983 panic("invalid action %d", action); 10984 break; /* NOTREACHED */ 10985 } 10986 } 10987 10988 return (CTL_ACTION_PASS); 10989} 10990 10991/* 10992 * Assumptions: 10993 * - An I/O has just completed, and has been removed from the per-LUN OOA 10994 * queue, so some items on the blocked queue may now be unblocked. 10995 */ 10996static int 10997ctl_check_blocked(struct ctl_lun *lun) 10998{ 10999 struct ctl_softc *softc = lun->ctl_softc; 11000 union ctl_io *cur_blocked, *next_blocked; 11001 11002 mtx_assert(&lun->lun_lock, MA_OWNED); 11003 11004 /* 11005 * Run forward from the head of the blocked queue, checking each 11006 * entry against the I/Os prior to it on the OOA queue to see if 11007 * there is still any blockage. 11008 * 11009 * We cannot use the TAILQ_FOREACH() macro, because it can't deal 11010 * with our removing a variable on it while it is traversing the 11011 * list. 11012 */ 11013 for (cur_blocked = (union ctl_io *)TAILQ_FIRST(&lun->blocked_queue); 11014 cur_blocked != NULL; cur_blocked = next_blocked) { 11015 union ctl_io *prev_ooa; 11016 ctl_action action; 11017 11018 next_blocked = (union ctl_io *)TAILQ_NEXT(&cur_blocked->io_hdr, 11019 blocked_links); 11020 11021 prev_ooa = (union ctl_io *)TAILQ_PREV(&cur_blocked->io_hdr, 11022 ctl_ooaq, ooa_links); 11023 11024 /* 11025 * If cur_blocked happens to be the first item in the OOA 11026 * queue now, prev_ooa will be NULL, and the action 11027 * returned will just be CTL_ACTION_PASS. 11028 */ 11029 action = ctl_check_ooa(lun, cur_blocked, prev_ooa); 11030 11031 switch (action) { 11032 case CTL_ACTION_BLOCK: 11033 /* Nothing to do here, still blocked */ 11034 break; 11035 case CTL_ACTION_OVERLAP: 11036 case CTL_ACTION_OVERLAP_TAG: 11037 /* 11038 * This shouldn't happen! In theory we've already 11039 * checked this command for overlap... 11040 */ 11041 break; 11042 case CTL_ACTION_PASS: 11043 case CTL_ACTION_SKIP: { 11044 const struct ctl_cmd_entry *entry; 11045 11046 /* 11047 * The skip case shouldn't happen, this transaction 11048 * should have never made it onto the blocked queue. 11049 */ 11050 /* 11051 * This I/O is no longer blocked, we can remove it 11052 * from the blocked queue. Since this is a TAILQ 11053 * (doubly linked list), we can do O(1) removals 11054 * from any place on the list. 11055 */ 11056 TAILQ_REMOVE(&lun->blocked_queue, &cur_blocked->io_hdr, 11057 blocked_links); 11058 cur_blocked->io_hdr.flags &= ~CTL_FLAG_BLOCKED; 11059 11060 if ((softc->ha_mode != CTL_HA_MODE_XFER) && 11061 (cur_blocked->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)){ 11062 /* 11063 * Need to send IO back to original side to 11064 * run 11065 */ 11066 union ctl_ha_msg msg_info; 11067 11068 cur_blocked->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 11069 msg_info.hdr.original_sc = 11070 cur_blocked->io_hdr.original_sc; 11071 msg_info.hdr.serializing_sc = cur_blocked; 11072 msg_info.hdr.msg_type = CTL_MSG_R2R; 11073 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 11074 sizeof(msg_info.hdr), M_NOWAIT); 11075 break; 11076 } 11077 entry = ctl_get_cmd_entry(&cur_blocked->scsiio, NULL); 11078 11079 /* 11080 * Check this I/O for LUN state changes that may 11081 * have happened while this command was blocked. 11082 * The LUN state may have been changed by a command 11083 * ahead of us in the queue, so we need to re-check 11084 * for any states that can be caused by SCSI 11085 * commands. 11086 */ 11087 if (ctl_scsiio_lun_check(lun, entry, 11088 &cur_blocked->scsiio) == 0) { 11089 cur_blocked->io_hdr.flags |= 11090 CTL_FLAG_IS_WAS_ON_RTR; 11091 ctl_enqueue_rtr(cur_blocked); 11092 } else 11093 ctl_done(cur_blocked); 11094 break; 11095 } 11096 default: 11097 /* 11098 * This probably shouldn't happen -- we shouldn't 11099 * get CTL_ACTION_ERROR, or anything else. 11100 */ 11101 break; 11102 } 11103 } 11104 11105 return (CTL_RETVAL_COMPLETE); 11106} 11107 11108/* 11109 * This routine (with one exception) checks LUN flags that can be set by 11110 * commands ahead of us in the OOA queue. These flags have to be checked 11111 * when a command initially comes in, and when we pull a command off the 11112 * blocked queue and are preparing to execute it. The reason we have to 11113 * check these flags for commands on the blocked queue is that the LUN 11114 * state may have been changed by a command ahead of us while we're on the 11115 * blocked queue. 11116 * 11117 * Ordering is somewhat important with these checks, so please pay 11118 * careful attention to the placement of any new checks. 11119 */ 11120static int 11121ctl_scsiio_lun_check(struct ctl_lun *lun, 11122 const struct ctl_cmd_entry *entry, struct ctl_scsiio *ctsio) 11123{ 11124 struct ctl_softc *softc = lun->ctl_softc; 11125 int retval; 11126 uint32_t residx; 11127 11128 retval = 0; 11129 11130 mtx_assert(&lun->lun_lock, MA_OWNED); 11131 11132 /* 11133 * If this shelf is a secondary shelf controller, we may have to 11134 * reject some commands disallowed by HA mode and link state. 11135 */ 11136 if ((lun->flags & CTL_LUN_PRIMARY_SC) == 0) { 11137 if (softc->ha_link == CTL_HA_LINK_OFFLINE && 11138 (entry->flags & CTL_CMD_FLAG_OK_ON_UNAVAIL) == 0) { 11139 ctl_set_lun_unavail(ctsio); 11140 retval = 1; 11141 goto bailout; 11142 } 11143 if ((lun->flags & CTL_LUN_PEER_SC_PRIMARY) == 0 && 11144 (entry->flags & CTL_CMD_FLAG_OK_ON_UNAVAIL) == 0) { 11145 ctl_set_lun_transit(ctsio); 11146 retval = 1; 11147 goto bailout; 11148 } 11149 if (softc->ha_mode == CTL_HA_MODE_ACT_STBY && 11150 (entry->flags & CTL_CMD_FLAG_OK_ON_STANDBY) == 0) { 11151 ctl_set_lun_standby(ctsio); 11152 retval = 1; 11153 goto bailout; 11154 } 11155 11156 /* The rest of checks are only done on executing side */ 11157 if (softc->ha_mode == CTL_HA_MODE_XFER) 11158 goto bailout; 11159 } 11160 11161 if (entry->pattern & CTL_LUN_PAT_WRITE) { 11162 if (lun->be_lun && 11163 lun->be_lun->flags & CTL_LUN_FLAG_READONLY) { 11164 ctl_set_hw_write_protected(ctsio); 11165 retval = 1; 11166 goto bailout; 11167 } 11168 if ((lun->mode_pages.control_page[CTL_PAGE_CURRENT] 11169 .eca_and_aen & SCP_SWP) != 0) { 11170 ctl_set_sense(ctsio, /*current_error*/ 1, 11171 /*sense_key*/ SSD_KEY_DATA_PROTECT, 11172 /*asc*/ 0x27, /*ascq*/ 0x02, SSD_ELEM_NONE); 11173 retval = 1; 11174 goto bailout; 11175 } 11176 } 11177 11178 /* 11179 * Check for a reservation conflict. If this command isn't allowed 11180 * even on reserved LUNs, and if this initiator isn't the one who 11181 * reserved us, reject the command with a reservation conflict. 11182 */ 11183 residx = ctl_get_initindex(&ctsio->io_hdr.nexus); 11184 if ((lun->flags & CTL_LUN_RESERVED) 11185 && ((entry->flags & CTL_CMD_FLAG_ALLOW_ON_RESV) == 0)) { 11186 if (lun->res_idx != residx) { 11187 ctl_set_reservation_conflict(ctsio); 11188 retval = 1; 11189 goto bailout; 11190 } 11191 } 11192 11193 if ((lun->flags & CTL_LUN_PR_RESERVED) == 0 || 11194 (entry->flags & CTL_CMD_FLAG_ALLOW_ON_PR_RESV)) { 11195 /* No reservation or command is allowed. */; 11196 } else if ((entry->flags & CTL_CMD_FLAG_ALLOW_ON_PR_WRESV) && 11197 (lun->res_type == SPR_TYPE_WR_EX || 11198 lun->res_type == SPR_TYPE_WR_EX_RO || 11199 lun->res_type == SPR_TYPE_WR_EX_AR)) { 11200 /* The command is allowed for Write Exclusive resv. */; 11201 } else { 11202 /* 11203 * if we aren't registered or it's a res holder type 11204 * reservation and this isn't the res holder then set a 11205 * conflict. 11206 */ 11207 if (ctl_get_prkey(lun, residx) == 0 11208 || (residx != lun->pr_res_idx && lun->res_type < 4)) { 11209 ctl_set_reservation_conflict(ctsio); 11210 retval = 1; 11211 goto bailout; 11212 } 11213 } 11214 11215 if ((lun->flags & CTL_LUN_OFFLINE) 11216 && ((entry->flags & CTL_CMD_FLAG_OK_ON_STANDBY) == 0)) { 11217 ctl_set_lun_not_ready(ctsio); 11218 retval = 1; 11219 goto bailout; 11220 } 11221 11222 if ((lun->flags & CTL_LUN_STOPPED) 11223 && ((entry->flags & CTL_CMD_FLAG_OK_ON_STOPPED) == 0)) { 11224 /* "Logical unit not ready, initializing cmd. required" */ 11225 ctl_set_lun_stopped(ctsio); 11226 retval = 1; 11227 goto bailout; 11228 } 11229 11230 if ((lun->flags & CTL_LUN_INOPERABLE) 11231 && ((entry->flags & CTL_CMD_FLAG_OK_ON_INOPERABLE) == 0)) { 11232 /* "Medium format corrupted" */ 11233 ctl_set_medium_format_corrupted(ctsio); 11234 retval = 1; 11235 goto bailout; 11236 } 11237 11238bailout: 11239 return (retval); 11240} 11241 11242static void 11243ctl_failover_io(union ctl_io *io, int have_lock) 11244{ 11245 ctl_set_busy(&io->scsiio); 11246 ctl_done(io); 11247} 11248 11249static void 11250ctl_failover_lun(struct ctl_lun *lun) 11251{ 11252 struct ctl_softc *softc = lun->ctl_softc; 11253 struct ctl_io_hdr *io, *next_io; 11254 11255 CTL_DEBUG_PRINT(("FAILOVER for lun %ju\n", lun->lun)); 11256 if (softc->ha_mode == CTL_HA_MODE_XFER) { 11257 TAILQ_FOREACH_SAFE(io, &lun->ooa_queue, ooa_links, next_io) { 11258 /* We are master */ 11259 if (io->flags & CTL_FLAG_FROM_OTHER_SC) { 11260 if (io->flags & CTL_FLAG_IO_ACTIVE) { 11261 io->flags |= CTL_FLAG_ABORT; 11262 io->flags |= CTL_FLAG_FAILOVER; 11263 } else { /* This can be only due to DATAMOVE */ 11264 io->msg_type = CTL_MSG_DATAMOVE_DONE; 11265 io->flags &= ~CTL_FLAG_DMA_INPROG; 11266 io->flags |= CTL_FLAG_IO_ACTIVE; 11267 io->port_status = 31340; 11268 ctl_enqueue_isc((union ctl_io *)io); 11269 } 11270 } 11271 /* We are slave */ 11272 if (io->flags & CTL_FLAG_SENT_2OTHER_SC) { 11273 io->flags &= ~CTL_FLAG_SENT_2OTHER_SC; 11274 if (io->flags & CTL_FLAG_IO_ACTIVE) { 11275 io->flags |= CTL_FLAG_FAILOVER; 11276 } else { 11277 ctl_set_busy(&((union ctl_io *)io)-> 11278 scsiio); 11279 ctl_done((union ctl_io *)io); 11280 } 11281 } 11282 } 11283 } else { /* SERIALIZE modes */ 11284 TAILQ_FOREACH_SAFE(io, &lun->blocked_queue, blocked_links, 11285 next_io) { 11286 /* We are master */ 11287 if (io->flags & CTL_FLAG_FROM_OTHER_SC) { 11288 TAILQ_REMOVE(&lun->blocked_queue, io, 11289 blocked_links); 11290 io->flags &= ~CTL_FLAG_BLOCKED; 11291 TAILQ_REMOVE(&lun->ooa_queue, io, ooa_links); 11292 ctl_free_io((union ctl_io *)io); 11293 } 11294 } 11295 TAILQ_FOREACH_SAFE(io, &lun->ooa_queue, ooa_links, next_io) { 11296 /* We are master */ 11297 if (io->flags & CTL_FLAG_FROM_OTHER_SC) { 11298 TAILQ_REMOVE(&lun->ooa_queue, io, ooa_links); 11299 ctl_free_io((union ctl_io *)io); 11300 } 11301 /* We are slave */ 11302 if (io->flags & CTL_FLAG_SENT_2OTHER_SC) { 11303 io->flags &= ~CTL_FLAG_SENT_2OTHER_SC; 11304 if (!(io->flags & CTL_FLAG_IO_ACTIVE)) { 11305 ctl_set_busy(&((union ctl_io *)io)-> 11306 scsiio); 11307 ctl_done((union ctl_io *)io); 11308 } 11309 } 11310 } 11311 ctl_check_blocked(lun); 11312 } 11313} 11314 11315static int 11316ctl_scsiio_precheck(struct ctl_softc *softc, struct ctl_scsiio *ctsio) 11317{ 11318 struct ctl_lun *lun; 11319 const struct ctl_cmd_entry *entry; 11320 uint32_t initidx, targ_lun; 11321 int retval; 11322 11323 retval = 0; 11324 11325 lun = NULL; 11326 11327 targ_lun = ctsio->io_hdr.nexus.targ_mapped_lun; 11328 if ((targ_lun < CTL_MAX_LUNS) 11329 && ((lun = softc->ctl_luns[targ_lun]) != NULL)) { 11330 /* 11331 * If the LUN is invalid, pretend that it doesn't exist. 11332 * It will go away as soon as all pending I/O has been 11333 * completed. 11334 */ 11335 mtx_lock(&lun->lun_lock); 11336 if (lun->flags & CTL_LUN_DISABLED) { 11337 mtx_unlock(&lun->lun_lock); 11338 lun = NULL; 11339 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr = NULL; 11340 ctsio->io_hdr.ctl_private[CTL_PRIV_BACKEND_LUN].ptr = NULL; 11341 } else { 11342 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr = lun; 11343 ctsio->io_hdr.ctl_private[CTL_PRIV_BACKEND_LUN].ptr = 11344 lun->be_lun; 11345 11346 /* 11347 * Every I/O goes into the OOA queue for a 11348 * particular LUN, and stays there until completion. 11349 */ 11350#ifdef CTL_TIME_IO 11351 if (TAILQ_EMPTY(&lun->ooa_queue)) { 11352 lun->idle_time += getsbinuptime() - 11353 lun->last_busy; 11354 } 11355#endif 11356 TAILQ_INSERT_TAIL(&lun->ooa_queue, &ctsio->io_hdr, 11357 ooa_links); 11358 } 11359 } else { 11360 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr = NULL; 11361 ctsio->io_hdr.ctl_private[CTL_PRIV_BACKEND_LUN].ptr = NULL; 11362 } 11363 11364 /* Get command entry and return error if it is unsuppotyed. */ 11365 entry = ctl_validate_command(ctsio); 11366 if (entry == NULL) { 11367 if (lun) 11368 mtx_unlock(&lun->lun_lock); 11369 return (retval); 11370 } 11371 11372 ctsio->io_hdr.flags &= ~CTL_FLAG_DATA_MASK; 11373 ctsio->io_hdr.flags |= entry->flags & CTL_FLAG_DATA_MASK; 11374 11375 /* 11376 * Check to see whether we can send this command to LUNs that don't 11377 * exist. This should pretty much only be the case for inquiry 11378 * and request sense. Further checks, below, really require having 11379 * a LUN, so we can't really check the command anymore. Just put 11380 * it on the rtr queue. 11381 */ 11382 if (lun == NULL) { 11383 if (entry->flags & CTL_CMD_FLAG_OK_ON_NO_LUN) { 11384 ctsio->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 11385 ctl_enqueue_rtr((union ctl_io *)ctsio); 11386 return (retval); 11387 } 11388 11389 ctl_set_unsupported_lun(ctsio); 11390 ctl_done((union ctl_io *)ctsio); 11391 CTL_DEBUG_PRINT(("ctl_scsiio_precheck: bailing out due to invalid LUN\n")); 11392 return (retval); 11393 } else { 11394 /* 11395 * Make sure we support this particular command on this LUN. 11396 * e.g., we don't support writes to the control LUN. 11397 */ 11398 if (!ctl_cmd_applicable(lun->be_lun->lun_type, entry)) { 11399 mtx_unlock(&lun->lun_lock); 11400 ctl_set_invalid_opcode(ctsio); 11401 ctl_done((union ctl_io *)ctsio); 11402 return (retval); 11403 } 11404 } 11405 11406 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 11407 11408#ifdef CTL_WITH_CA 11409 /* 11410 * If we've got a request sense, it'll clear the contingent 11411 * allegiance condition. Otherwise, if we have a CA condition for 11412 * this initiator, clear it, because it sent down a command other 11413 * than request sense. 11414 */ 11415 if ((ctsio->cdb[0] != REQUEST_SENSE) 11416 && (ctl_is_set(lun->have_ca, initidx))) 11417 ctl_clear_mask(lun->have_ca, initidx); 11418#endif 11419 11420 /* 11421 * If the command has this flag set, it handles its own unit 11422 * attention reporting, we shouldn't do anything. Otherwise we 11423 * check for any pending unit attentions, and send them back to the 11424 * initiator. We only do this when a command initially comes in, 11425 * not when we pull it off the blocked queue. 11426 * 11427 * According to SAM-3, section 5.3.2, the order that things get 11428 * presented back to the host is basically unit attentions caused 11429 * by some sort of reset event, busy status, reservation conflicts 11430 * or task set full, and finally any other status. 11431 * 11432 * One issue here is that some of the unit attentions we report 11433 * don't fall into the "reset" category (e.g. "reported luns data 11434 * has changed"). So reporting it here, before the reservation 11435 * check, may be technically wrong. I guess the only thing to do 11436 * would be to check for and report the reset events here, and then 11437 * check for the other unit attention types after we check for a 11438 * reservation conflict. 11439 * 11440 * XXX KDM need to fix this 11441 */ 11442 if ((entry->flags & CTL_CMD_FLAG_NO_SENSE) == 0) { 11443 ctl_ua_type ua_type; 11444 11445 ua_type = ctl_build_ua(lun, initidx, &ctsio->sense_data, 11446 SSD_TYPE_NONE); 11447 if (ua_type != CTL_UA_NONE) { 11448 mtx_unlock(&lun->lun_lock); 11449 ctsio->scsi_status = SCSI_STATUS_CHECK_COND; 11450 ctsio->io_hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 11451 ctsio->sense_len = SSD_FULL_SIZE; 11452 ctl_done((union ctl_io *)ctsio); 11453 return (retval); 11454 } 11455 } 11456 11457 11458 if (ctl_scsiio_lun_check(lun, entry, ctsio) != 0) { 11459 mtx_unlock(&lun->lun_lock); 11460 ctl_done((union ctl_io *)ctsio); 11461 return (retval); 11462 } 11463 11464 /* 11465 * XXX CHD this is where we want to send IO to other side if 11466 * this LUN is secondary on this SC. We will need to make a copy 11467 * of the IO and flag the IO on this side as SENT_2OTHER and the flag 11468 * the copy we send as FROM_OTHER. 11469 * We also need to stuff the address of the original IO so we can 11470 * find it easily. Something similar will need be done on the other 11471 * side so when we are done we can find the copy. 11472 */ 11473 if ((lun->flags & CTL_LUN_PRIMARY_SC) == 0 && 11474 (lun->flags & CTL_LUN_PEER_SC_PRIMARY) != 0 && 11475 (entry->flags & CTL_CMD_FLAG_RUN_HERE) == 0) { 11476 union ctl_ha_msg msg_info; 11477 int isc_retval; 11478 11479 ctsio->io_hdr.flags |= CTL_FLAG_SENT_2OTHER_SC; 11480 ctsio->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 11481 mtx_unlock(&lun->lun_lock); 11482 11483 msg_info.hdr.msg_type = CTL_MSG_SERIALIZE; 11484 msg_info.hdr.original_sc = (union ctl_io *)ctsio; 11485 msg_info.hdr.serializing_sc = NULL; 11486 msg_info.hdr.nexus = ctsio->io_hdr.nexus; 11487 msg_info.scsi.tag_num = ctsio->tag_num; 11488 msg_info.scsi.tag_type = ctsio->tag_type; 11489 msg_info.scsi.cdb_len = ctsio->cdb_len; 11490 memcpy(msg_info.scsi.cdb, ctsio->cdb, CTL_MAX_CDBLEN); 11491 11492 if ((isc_retval = ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 11493 sizeof(msg_info.scsi) - sizeof(msg_info.scsi.sense_data), 11494 M_WAITOK)) > CTL_HA_STATUS_SUCCESS) { 11495 ctl_set_busy(ctsio); 11496 ctl_done((union ctl_io *)ctsio); 11497 return (retval); 11498 } 11499 return (retval); 11500 } 11501 11502 switch (ctl_check_ooa(lun, (union ctl_io *)ctsio, 11503 (union ctl_io *)TAILQ_PREV(&ctsio->io_hdr, 11504 ctl_ooaq, ooa_links))) { 11505 case CTL_ACTION_BLOCK: 11506 ctsio->io_hdr.flags |= CTL_FLAG_BLOCKED; 11507 TAILQ_INSERT_TAIL(&lun->blocked_queue, &ctsio->io_hdr, 11508 blocked_links); 11509 mtx_unlock(&lun->lun_lock); 11510 return (retval); 11511 case CTL_ACTION_PASS: 11512 case CTL_ACTION_SKIP: 11513 ctsio->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 11514 mtx_unlock(&lun->lun_lock); 11515 ctl_enqueue_rtr((union ctl_io *)ctsio); 11516 break; 11517 case CTL_ACTION_OVERLAP: 11518 mtx_unlock(&lun->lun_lock); 11519 ctl_set_overlapped_cmd(ctsio); 11520 ctl_done((union ctl_io *)ctsio); 11521 break; 11522 case CTL_ACTION_OVERLAP_TAG: 11523 mtx_unlock(&lun->lun_lock); 11524 ctl_set_overlapped_tag(ctsio, ctsio->tag_num & 0xff); 11525 ctl_done((union ctl_io *)ctsio); 11526 break; 11527 case CTL_ACTION_ERROR: 11528 default: 11529 mtx_unlock(&lun->lun_lock); 11530 ctl_set_internal_failure(ctsio, 11531 /*sks_valid*/ 0, 11532 /*retry_count*/ 0); 11533 ctl_done((union ctl_io *)ctsio); 11534 break; 11535 } 11536 return (retval); 11537} 11538 11539const struct ctl_cmd_entry * 11540ctl_get_cmd_entry(struct ctl_scsiio *ctsio, int *sa) 11541{ 11542 const struct ctl_cmd_entry *entry; 11543 int service_action; 11544 11545 entry = &ctl_cmd_table[ctsio->cdb[0]]; 11546 if (sa) 11547 *sa = ((entry->flags & CTL_CMD_FLAG_SA5) != 0); 11548 if (entry->flags & CTL_CMD_FLAG_SA5) { 11549 service_action = ctsio->cdb[1] & SERVICE_ACTION_MASK; 11550 entry = &((const struct ctl_cmd_entry *) 11551 entry->execute)[service_action]; 11552 } 11553 return (entry); 11554} 11555 11556const struct ctl_cmd_entry * 11557ctl_validate_command(struct ctl_scsiio *ctsio) 11558{ 11559 const struct ctl_cmd_entry *entry; 11560 int i, sa; 11561 uint8_t diff; 11562 11563 entry = ctl_get_cmd_entry(ctsio, &sa); 11564 if (entry->execute == NULL) { 11565 if (sa) 11566 ctl_set_invalid_field(ctsio, 11567 /*sks_valid*/ 1, 11568 /*command*/ 1, 11569 /*field*/ 1, 11570 /*bit_valid*/ 1, 11571 /*bit*/ 4); 11572 else 11573 ctl_set_invalid_opcode(ctsio); 11574 ctl_done((union ctl_io *)ctsio); 11575 return (NULL); 11576 } 11577 KASSERT(entry->length > 0, 11578 ("Not defined length for command 0x%02x/0x%02x", 11579 ctsio->cdb[0], ctsio->cdb[1])); 11580 for (i = 1; i < entry->length; i++) { 11581 diff = ctsio->cdb[i] & ~entry->usage[i - 1]; 11582 if (diff == 0) 11583 continue; 11584 ctl_set_invalid_field(ctsio, 11585 /*sks_valid*/ 1, 11586 /*command*/ 1, 11587 /*field*/ i, 11588 /*bit_valid*/ 1, 11589 /*bit*/ fls(diff) - 1); 11590 ctl_done((union ctl_io *)ctsio); 11591 return (NULL); 11592 } 11593 return (entry); 11594} 11595 11596static int 11597ctl_cmd_applicable(uint8_t lun_type, const struct ctl_cmd_entry *entry) 11598{ 11599 11600 switch (lun_type) { 11601 case T_PROCESSOR: 11602 if ((entry->flags & CTL_CMD_FLAG_OK_ON_PROC) == 0) 11603 return (0); 11604 break; 11605 case T_DIRECT: 11606 if ((entry->flags & CTL_CMD_FLAG_OK_ON_SLUN) == 0) 11607 return (0); 11608 break; 11609 default: 11610 return (0); 11611 } 11612 return (1); 11613} 11614 11615static int 11616ctl_scsiio(struct ctl_scsiio *ctsio) 11617{ 11618 int retval; 11619 const struct ctl_cmd_entry *entry; 11620 11621 retval = CTL_RETVAL_COMPLETE; 11622 11623 CTL_DEBUG_PRINT(("ctl_scsiio cdb[0]=%02X\n", ctsio->cdb[0])); 11624 11625 entry = ctl_get_cmd_entry(ctsio, NULL); 11626 11627 /* 11628 * If this I/O has been aborted, just send it straight to 11629 * ctl_done() without executing it. 11630 */ 11631 if (ctsio->io_hdr.flags & CTL_FLAG_ABORT) { 11632 ctl_done((union ctl_io *)ctsio); 11633 goto bailout; 11634 } 11635 11636 /* 11637 * All the checks should have been handled by ctl_scsiio_precheck(). 11638 * We should be clear now to just execute the I/O. 11639 */ 11640 retval = entry->execute(ctsio); 11641 11642bailout: 11643 return (retval); 11644} 11645 11646/* 11647 * Since we only implement one target right now, a bus reset simply resets 11648 * our single target. 11649 */ 11650static int 11651ctl_bus_reset(struct ctl_softc *softc, union ctl_io *io) 11652{ 11653 return(ctl_target_reset(softc, io, CTL_UA_BUS_RESET)); 11654} 11655 11656static int 11657ctl_target_reset(struct ctl_softc *softc, union ctl_io *io, 11658 ctl_ua_type ua_type) 11659{ 11660 struct ctl_port *port; 11661 struct ctl_lun *lun; 11662 int retval; 11663 11664 if (!(io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)) { 11665 union ctl_ha_msg msg_info; 11666 11667 msg_info.hdr.nexus = io->io_hdr.nexus; 11668 if (ua_type==CTL_UA_TARG_RESET) 11669 msg_info.task.task_action = CTL_TASK_TARGET_RESET; 11670 else 11671 msg_info.task.task_action = CTL_TASK_BUS_RESET; 11672 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 11673 msg_info.hdr.original_sc = NULL; 11674 msg_info.hdr.serializing_sc = NULL; 11675 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 11676 sizeof(msg_info.task), M_WAITOK); 11677 } 11678 retval = 0; 11679 11680 mtx_lock(&softc->ctl_lock); 11681 port = softc->ctl_ports[io->io_hdr.nexus.targ_port]; 11682 STAILQ_FOREACH(lun, &softc->lun_list, links) { 11683 if (port != NULL && 11684 ctl_lun_map_to_port(port, lun->lun) >= CTL_MAX_LUNS) 11685 continue; 11686 retval += ctl_do_lun_reset(lun, io, ua_type); 11687 } 11688 mtx_unlock(&softc->ctl_lock); 11689 io->taskio.task_status = CTL_TASK_FUNCTION_COMPLETE; 11690 return (retval); 11691} 11692 11693/* 11694 * The LUN should always be set. The I/O is optional, and is used to 11695 * distinguish between I/Os sent by this initiator, and by other 11696 * initiators. We set unit attention for initiators other than this one. 11697 * SAM-3 is vague on this point. It does say that a unit attention should 11698 * be established for other initiators when a LUN is reset (see section 11699 * 5.7.3), but it doesn't specifically say that the unit attention should 11700 * be established for this particular initiator when a LUN is reset. Here 11701 * is the relevant text, from SAM-3 rev 8: 11702 * 11703 * 5.7.2 When a SCSI initiator port aborts its own tasks 11704 * 11705 * When a SCSI initiator port causes its own task(s) to be aborted, no 11706 * notification that the task(s) have been aborted shall be returned to 11707 * the SCSI initiator port other than the completion response for the 11708 * command or task management function action that caused the task(s) to 11709 * be aborted and notification(s) associated with related effects of the 11710 * action (e.g., a reset unit attention condition). 11711 * 11712 * XXX KDM for now, we're setting unit attention for all initiators. 11713 */ 11714static int 11715ctl_do_lun_reset(struct ctl_lun *lun, union ctl_io *io, ctl_ua_type ua_type) 11716{ 11717 union ctl_io *xio; 11718#if 0 11719 uint32_t initidx; 11720#endif 11721#ifdef CTL_WITH_CA 11722 int i; 11723#endif 11724 11725 mtx_lock(&lun->lun_lock); 11726 /* 11727 * Run through the OOA queue and abort each I/O. 11728 */ 11729 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 11730 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 11731 xio->io_hdr.flags |= CTL_FLAG_ABORT | CTL_FLAG_ABORT_STATUS; 11732 } 11733 11734 /* 11735 * This version sets unit attention for every 11736 */ 11737#if 0 11738 initidx = ctl_get_initindex(&io->io_hdr.nexus); 11739 ctl_est_ua_all(lun, initidx, ua_type); 11740#else 11741 ctl_est_ua_all(lun, -1, ua_type); 11742#endif 11743 11744 /* 11745 * A reset (any kind, really) clears reservations established with 11746 * RESERVE/RELEASE. It does not clear reservations established 11747 * with PERSISTENT RESERVE OUT, but we don't support that at the 11748 * moment anyway. See SPC-2, section 5.6. SPC-3 doesn't address 11749 * reservations made with the RESERVE/RELEASE commands, because 11750 * those commands are obsolete in SPC-3. 11751 */ 11752 lun->flags &= ~CTL_LUN_RESERVED; 11753 11754#ifdef CTL_WITH_CA 11755 for (i = 0; i < CTL_MAX_INITIATORS; i++) 11756 ctl_clear_mask(lun->have_ca, i); 11757#endif 11758 mtx_unlock(&lun->lun_lock); 11759 11760 return (0); 11761} 11762 11763static int 11764ctl_lun_reset(struct ctl_softc *softc, union ctl_io *io) 11765{ 11766 struct ctl_lun *lun; 11767 uint32_t targ_lun; 11768 int retval; 11769 11770 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 11771 mtx_lock(&softc->ctl_lock); 11772 if ((targ_lun >= CTL_MAX_LUNS) || 11773 (lun = softc->ctl_luns[targ_lun]) == NULL) { 11774 mtx_unlock(&softc->ctl_lock); 11775 io->taskio.task_status = CTL_TASK_LUN_DOES_NOT_EXIST; 11776 return (1); 11777 } 11778 retval = ctl_do_lun_reset(lun, io, CTL_UA_LUN_RESET); 11779 mtx_unlock(&softc->ctl_lock); 11780 io->taskio.task_status = CTL_TASK_FUNCTION_COMPLETE; 11781 11782 if ((io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) == 0) { 11783 union ctl_ha_msg msg_info; 11784 11785 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 11786 msg_info.hdr.nexus = io->io_hdr.nexus; 11787 msg_info.task.task_action = CTL_TASK_LUN_RESET; 11788 msg_info.hdr.original_sc = NULL; 11789 msg_info.hdr.serializing_sc = NULL; 11790 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 11791 sizeof(msg_info.task), M_WAITOK); 11792 } 11793 return (retval); 11794} 11795 11796static void 11797ctl_abort_tasks_lun(struct ctl_lun *lun, uint32_t targ_port, uint32_t init_id, 11798 int other_sc) 11799{ 11800 union ctl_io *xio; 11801 11802 mtx_assert(&lun->lun_lock, MA_OWNED); 11803 11804 /* 11805 * Run through the OOA queue and attempt to find the given I/O. 11806 * The target port, initiator ID, tag type and tag number have to 11807 * match the values that we got from the initiator. If we have an 11808 * untagged command to abort, simply abort the first untagged command 11809 * we come to. We only allow one untagged command at a time of course. 11810 */ 11811 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 11812 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 11813 11814 if ((targ_port == UINT32_MAX || 11815 targ_port == xio->io_hdr.nexus.targ_port) && 11816 (init_id == UINT32_MAX || 11817 init_id == xio->io_hdr.nexus.initid)) { 11818 if (targ_port != xio->io_hdr.nexus.targ_port || 11819 init_id != xio->io_hdr.nexus.initid) 11820 xio->io_hdr.flags |= CTL_FLAG_ABORT_STATUS; 11821 xio->io_hdr.flags |= CTL_FLAG_ABORT; 11822 if (!other_sc && !(lun->flags & CTL_LUN_PRIMARY_SC)) { 11823 union ctl_ha_msg msg_info; 11824 11825 msg_info.hdr.nexus = xio->io_hdr.nexus; 11826 msg_info.task.task_action = CTL_TASK_ABORT_TASK; 11827 msg_info.task.tag_num = xio->scsiio.tag_num; 11828 msg_info.task.tag_type = xio->scsiio.tag_type; 11829 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 11830 msg_info.hdr.original_sc = NULL; 11831 msg_info.hdr.serializing_sc = NULL; 11832 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 11833 sizeof(msg_info.task), M_NOWAIT); 11834 } 11835 } 11836 } 11837} 11838 11839static int 11840ctl_abort_task_set(union ctl_io *io) 11841{ 11842 struct ctl_softc *softc = control_softc; 11843 struct ctl_lun *lun; 11844 uint32_t targ_lun; 11845 11846 /* 11847 * Look up the LUN. 11848 */ 11849 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 11850 mtx_lock(&softc->ctl_lock); 11851 if ((targ_lun >= CTL_MAX_LUNS) || 11852 (lun = softc->ctl_luns[targ_lun]) == NULL) { 11853 mtx_unlock(&softc->ctl_lock); 11854 io->taskio.task_status = CTL_TASK_LUN_DOES_NOT_EXIST; 11855 return (1); 11856 } 11857 11858 mtx_lock(&lun->lun_lock); 11859 mtx_unlock(&softc->ctl_lock); 11860 if (io->taskio.task_action == CTL_TASK_ABORT_TASK_SET) { 11861 ctl_abort_tasks_lun(lun, io->io_hdr.nexus.targ_port, 11862 io->io_hdr.nexus.initid, 11863 (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) != 0); 11864 } else { /* CTL_TASK_CLEAR_TASK_SET */ 11865 ctl_abort_tasks_lun(lun, UINT32_MAX, UINT32_MAX, 11866 (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) != 0); 11867 } 11868 mtx_unlock(&lun->lun_lock); 11869 io->taskio.task_status = CTL_TASK_FUNCTION_COMPLETE; 11870 return (0); 11871} 11872 11873static int 11874ctl_i_t_nexus_reset(union ctl_io *io) 11875{ 11876 struct ctl_softc *softc = control_softc; 11877 struct ctl_lun *lun; 11878 uint32_t initidx; 11879 11880 if (!(io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)) { 11881 union ctl_ha_msg msg_info; 11882 11883 msg_info.hdr.nexus = io->io_hdr.nexus; 11884 msg_info.task.task_action = CTL_TASK_I_T_NEXUS_RESET; 11885 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 11886 msg_info.hdr.original_sc = NULL; 11887 msg_info.hdr.serializing_sc = NULL; 11888 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 11889 sizeof(msg_info.task), M_WAITOK); 11890 } 11891 11892 initidx = ctl_get_initindex(&io->io_hdr.nexus); 11893 mtx_lock(&softc->ctl_lock); 11894 STAILQ_FOREACH(lun, &softc->lun_list, links) { 11895 mtx_lock(&lun->lun_lock); 11896 ctl_abort_tasks_lun(lun, io->io_hdr.nexus.targ_port, 11897 io->io_hdr.nexus.initid, 1); 11898#ifdef CTL_WITH_CA 11899 ctl_clear_mask(lun->have_ca, initidx); 11900#endif 11901 if ((lun->flags & CTL_LUN_RESERVED) && (lun->res_idx == initidx)) 11902 lun->flags &= ~CTL_LUN_RESERVED; 11903 ctl_est_ua(lun, initidx, CTL_UA_I_T_NEXUS_LOSS); 11904 mtx_unlock(&lun->lun_lock); 11905 } 11906 mtx_unlock(&softc->ctl_lock); 11907 io->taskio.task_status = CTL_TASK_FUNCTION_COMPLETE; 11908 return (0); 11909} 11910 11911static int 11912ctl_abort_task(union ctl_io *io) 11913{ 11914 union ctl_io *xio; 11915 struct ctl_lun *lun; 11916 struct ctl_softc *softc; 11917#if 0 11918 struct sbuf sb; 11919 char printbuf[128]; 11920#endif 11921 int found; 11922 uint32_t targ_lun; 11923 11924 softc = control_softc; 11925 found = 0; 11926 11927 /* 11928 * Look up the LUN. 11929 */ 11930 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 11931 mtx_lock(&softc->ctl_lock); 11932 if ((targ_lun >= CTL_MAX_LUNS) || 11933 (lun = softc->ctl_luns[targ_lun]) == NULL) { 11934 mtx_unlock(&softc->ctl_lock); 11935 io->taskio.task_status = CTL_TASK_LUN_DOES_NOT_EXIST; 11936 return (1); 11937 } 11938 11939#if 0 11940 printf("ctl_abort_task: called for lun %lld, tag %d type %d\n", 11941 lun->lun, io->taskio.tag_num, io->taskio.tag_type); 11942#endif 11943 11944 mtx_lock(&lun->lun_lock); 11945 mtx_unlock(&softc->ctl_lock); 11946 /* 11947 * Run through the OOA queue and attempt to find the given I/O. 11948 * The target port, initiator ID, tag type and tag number have to 11949 * match the values that we got from the initiator. If we have an 11950 * untagged command to abort, simply abort the first untagged command 11951 * we come to. We only allow one untagged command at a time of course. 11952 */ 11953 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 11954 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 11955#if 0 11956 sbuf_new(&sb, printbuf, sizeof(printbuf), SBUF_FIXEDLEN); 11957 11958 sbuf_printf(&sb, "LUN %lld tag %d type %d%s%s%s%s: ", 11959 lun->lun, xio->scsiio.tag_num, 11960 xio->scsiio.tag_type, 11961 (xio->io_hdr.blocked_links.tqe_prev 11962 == NULL) ? "" : " BLOCKED", 11963 (xio->io_hdr.flags & 11964 CTL_FLAG_DMA_INPROG) ? " DMA" : "", 11965 (xio->io_hdr.flags & 11966 CTL_FLAG_ABORT) ? " ABORT" : "", 11967 (xio->io_hdr.flags & 11968 CTL_FLAG_IS_WAS_ON_RTR ? " RTR" : "")); 11969 ctl_scsi_command_string(&xio->scsiio, NULL, &sb); 11970 sbuf_finish(&sb); 11971 printf("%s\n", sbuf_data(&sb)); 11972#endif 11973 11974 if ((xio->io_hdr.nexus.targ_port != io->io_hdr.nexus.targ_port) 11975 || (xio->io_hdr.nexus.initid != io->io_hdr.nexus.initid) 11976 || (xio->io_hdr.flags & CTL_FLAG_ABORT)) 11977 continue; 11978 11979 /* 11980 * If the abort says that the task is untagged, the 11981 * task in the queue must be untagged. Otherwise, 11982 * we just check to see whether the tag numbers 11983 * match. This is because the QLogic firmware 11984 * doesn't pass back the tag type in an abort 11985 * request. 11986 */ 11987#if 0 11988 if (((xio->scsiio.tag_type == CTL_TAG_UNTAGGED) 11989 && (io->taskio.tag_type == CTL_TAG_UNTAGGED)) 11990 || (xio->scsiio.tag_num == io->taskio.tag_num)) 11991#endif 11992 /* 11993 * XXX KDM we've got problems with FC, because it 11994 * doesn't send down a tag type with aborts. So we 11995 * can only really go by the tag number... 11996 * This may cause problems with parallel SCSI. 11997 * Need to figure that out!! 11998 */ 11999 if (xio->scsiio.tag_num == io->taskio.tag_num) { 12000 xio->io_hdr.flags |= CTL_FLAG_ABORT; 12001 found = 1; 12002 if ((io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) == 0 && 12003 !(lun->flags & CTL_LUN_PRIMARY_SC)) { 12004 union ctl_ha_msg msg_info; 12005 12006 msg_info.hdr.nexus = io->io_hdr.nexus; 12007 msg_info.task.task_action = CTL_TASK_ABORT_TASK; 12008 msg_info.task.tag_num = io->taskio.tag_num; 12009 msg_info.task.tag_type = io->taskio.tag_type; 12010 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 12011 msg_info.hdr.original_sc = NULL; 12012 msg_info.hdr.serializing_sc = NULL; 12013#if 0 12014 printf("Sent Abort to other side\n"); 12015#endif 12016 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 12017 sizeof(msg_info.task), M_NOWAIT); 12018 } 12019#if 0 12020 printf("ctl_abort_task: found I/O to abort\n"); 12021#endif 12022 } 12023 } 12024 mtx_unlock(&lun->lun_lock); 12025 12026 if (found == 0) { 12027 /* 12028 * This isn't really an error. It's entirely possible for 12029 * the abort and command completion to cross on the wire. 12030 * This is more of an informative/diagnostic error. 12031 */ 12032#if 0 12033 printf("ctl_abort_task: ABORT sent for nonexistent I/O: " 12034 "%u:%u:%u tag %d type %d\n", 12035 io->io_hdr.nexus.initid, 12036 io->io_hdr.nexus.targ_port, 12037 io->io_hdr.nexus.targ_lun, io->taskio.tag_num, 12038 io->taskio.tag_type); 12039#endif 12040 } 12041 io->taskio.task_status = CTL_TASK_FUNCTION_COMPLETE; 12042 return (0); 12043} 12044 12045static int 12046ctl_query_task(union ctl_io *io, int task_set) 12047{ 12048 union ctl_io *xio; 12049 struct ctl_lun *lun; 12050 struct ctl_softc *softc; 12051 int found = 0; 12052 uint32_t targ_lun; 12053 12054 softc = control_softc; 12055 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12056 mtx_lock(&softc->ctl_lock); 12057 if ((targ_lun >= CTL_MAX_LUNS) || 12058 (lun = softc->ctl_luns[targ_lun]) == NULL) { 12059 mtx_unlock(&softc->ctl_lock); 12060 io->taskio.task_status = CTL_TASK_LUN_DOES_NOT_EXIST; 12061 return (1); 12062 } 12063 mtx_lock(&lun->lun_lock); 12064 mtx_unlock(&softc->ctl_lock); 12065 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 12066 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 12067 12068 if ((xio->io_hdr.nexus.targ_port != io->io_hdr.nexus.targ_port) 12069 || (xio->io_hdr.nexus.initid != io->io_hdr.nexus.initid) 12070 || (xio->io_hdr.flags & CTL_FLAG_ABORT)) 12071 continue; 12072 12073 if (task_set || xio->scsiio.tag_num == io->taskio.tag_num) { 12074 found = 1; 12075 break; 12076 } 12077 } 12078 mtx_unlock(&lun->lun_lock); 12079 if (found) 12080 io->taskio.task_status = CTL_TASK_FUNCTION_SUCCEEDED; 12081 else 12082 io->taskio.task_status = CTL_TASK_FUNCTION_COMPLETE; 12083 return (0); 12084} 12085 12086static int 12087ctl_query_async_event(union ctl_io *io) 12088{ 12089 struct ctl_lun *lun; 12090 struct ctl_softc *softc; 12091 ctl_ua_type ua; 12092 uint32_t targ_lun, initidx; 12093 12094 softc = control_softc; 12095 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12096 mtx_lock(&softc->ctl_lock); 12097 if ((targ_lun >= CTL_MAX_LUNS) || 12098 (lun = softc->ctl_luns[targ_lun]) == NULL) { 12099 mtx_unlock(&softc->ctl_lock); 12100 io->taskio.task_status = CTL_TASK_LUN_DOES_NOT_EXIST; 12101 return (1); 12102 } 12103 mtx_lock(&lun->lun_lock); 12104 mtx_unlock(&softc->ctl_lock); 12105 initidx = ctl_get_initindex(&io->io_hdr.nexus); 12106 ua = ctl_build_qae(lun, initidx, io->taskio.task_resp); 12107 mtx_unlock(&lun->lun_lock); 12108 if (ua != CTL_UA_NONE) 12109 io->taskio.task_status = CTL_TASK_FUNCTION_SUCCEEDED; 12110 else 12111 io->taskio.task_status = CTL_TASK_FUNCTION_COMPLETE; 12112 return (0); 12113} 12114 12115static void 12116ctl_run_task(union ctl_io *io) 12117{ 12118 struct ctl_softc *softc = control_softc; 12119 int retval = 1; 12120 12121 CTL_DEBUG_PRINT(("ctl_run_task\n")); 12122 KASSERT(io->io_hdr.io_type == CTL_IO_TASK, 12123 ("ctl_run_task: Unextected io_type %d\n", io->io_hdr.io_type)); 12124 io->taskio.task_status = CTL_TASK_FUNCTION_NOT_SUPPORTED; 12125 bzero(io->taskio.task_resp, sizeof(io->taskio.task_resp)); 12126 switch (io->taskio.task_action) { 12127 case CTL_TASK_ABORT_TASK: 12128 retval = ctl_abort_task(io); 12129 break; 12130 case CTL_TASK_ABORT_TASK_SET: 12131 case CTL_TASK_CLEAR_TASK_SET: 12132 retval = ctl_abort_task_set(io); 12133 break; 12134 case CTL_TASK_CLEAR_ACA: 12135 break; 12136 case CTL_TASK_I_T_NEXUS_RESET: 12137 retval = ctl_i_t_nexus_reset(io); 12138 break; 12139 case CTL_TASK_LUN_RESET: 12140 retval = ctl_lun_reset(softc, io); 12141 break; 12142 case CTL_TASK_TARGET_RESET: 12143 retval = ctl_target_reset(softc, io, CTL_UA_TARG_RESET); 12144 break; 12145 case CTL_TASK_BUS_RESET: 12146 retval = ctl_bus_reset(softc, io); 12147 break; 12148 case CTL_TASK_PORT_LOGIN: 12149 break; 12150 case CTL_TASK_PORT_LOGOUT: 12151 break; 12152 case CTL_TASK_QUERY_TASK: 12153 retval = ctl_query_task(io, 0); 12154 break; 12155 case CTL_TASK_QUERY_TASK_SET: 12156 retval = ctl_query_task(io, 1); 12157 break; 12158 case CTL_TASK_QUERY_ASYNC_EVENT: 12159 retval = ctl_query_async_event(io); 12160 break; 12161 default: 12162 printf("%s: got unknown task management event %d\n", 12163 __func__, io->taskio.task_action); 12164 break; 12165 } 12166 if (retval == 0) 12167 io->io_hdr.status = CTL_SUCCESS; 12168 else 12169 io->io_hdr.status = CTL_ERROR; 12170 ctl_done(io); 12171} 12172 12173/* 12174 * For HA operation. Handle commands that come in from the other 12175 * controller. 12176 */ 12177static void 12178ctl_handle_isc(union ctl_io *io) 12179{ 12180 int free_io; 12181 struct ctl_lun *lun; 12182 struct ctl_softc *softc; 12183 uint32_t targ_lun; 12184 12185 softc = control_softc; 12186 12187 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12188 lun = softc->ctl_luns[targ_lun]; 12189 12190 switch (io->io_hdr.msg_type) { 12191 case CTL_MSG_SERIALIZE: 12192 free_io = ctl_serialize_other_sc_cmd(&io->scsiio); 12193 break; 12194 case CTL_MSG_R2R: { 12195 const struct ctl_cmd_entry *entry; 12196 12197 /* 12198 * This is only used in SER_ONLY mode. 12199 */ 12200 free_io = 0; 12201 entry = ctl_get_cmd_entry(&io->scsiio, NULL); 12202 mtx_lock(&lun->lun_lock); 12203 if (ctl_scsiio_lun_check(lun, 12204 entry, (struct ctl_scsiio *)io) != 0) { 12205 mtx_unlock(&lun->lun_lock); 12206 ctl_done(io); 12207 break; 12208 } 12209 io->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 12210 mtx_unlock(&lun->lun_lock); 12211 ctl_enqueue_rtr(io); 12212 break; 12213 } 12214 case CTL_MSG_FINISH_IO: 12215 if (softc->ha_mode == CTL_HA_MODE_XFER) { 12216 free_io = 0; 12217 ctl_done(io); 12218 } else { 12219 free_io = 1; 12220 mtx_lock(&lun->lun_lock); 12221 TAILQ_REMOVE(&lun->ooa_queue, &io->io_hdr, 12222 ooa_links); 12223 ctl_check_blocked(lun); 12224 mtx_unlock(&lun->lun_lock); 12225 } 12226 break; 12227 case CTL_MSG_PERS_ACTION: 12228 ctl_hndl_per_res_out_on_other_sc( 12229 (union ctl_ha_msg *)&io->presio.pr_msg); 12230 free_io = 1; 12231 break; 12232 case CTL_MSG_BAD_JUJU: 12233 free_io = 0; 12234 ctl_done(io); 12235 break; 12236 case CTL_MSG_DATAMOVE: 12237 /* Only used in XFER mode */ 12238 free_io = 0; 12239 ctl_datamove_remote(io); 12240 break; 12241 case CTL_MSG_DATAMOVE_DONE: 12242 /* Only used in XFER mode */ 12243 free_io = 0; 12244 io->scsiio.be_move_done(io); 12245 break; 12246 case CTL_MSG_FAILOVER: 12247 mtx_lock(&lun->lun_lock); 12248 ctl_failover_lun(lun); 12249 mtx_unlock(&lun->lun_lock); 12250 free_io = 1; 12251 break; 12252 default: 12253 free_io = 1; 12254 printf("%s: Invalid message type %d\n", 12255 __func__, io->io_hdr.msg_type); 12256 break; 12257 } 12258 if (free_io) 12259 ctl_free_io(io); 12260 12261} 12262 12263 12264/* 12265 * Returns the match type in the case of a match, or CTL_LUN_PAT_NONE if 12266 * there is no match. 12267 */ 12268static ctl_lun_error_pattern 12269ctl_cmd_pattern_match(struct ctl_scsiio *ctsio, struct ctl_error_desc *desc) 12270{ 12271 const struct ctl_cmd_entry *entry; 12272 ctl_lun_error_pattern filtered_pattern, pattern; 12273 12274 pattern = desc->error_pattern; 12275 12276 /* 12277 * XXX KDM we need more data passed into this function to match a 12278 * custom pattern, and we actually need to implement custom pattern 12279 * matching. 12280 */ 12281 if (pattern & CTL_LUN_PAT_CMD) 12282 return (CTL_LUN_PAT_CMD); 12283 12284 if ((pattern & CTL_LUN_PAT_MASK) == CTL_LUN_PAT_ANY) 12285 return (CTL_LUN_PAT_ANY); 12286 12287 entry = ctl_get_cmd_entry(ctsio, NULL); 12288 12289 filtered_pattern = entry->pattern & pattern; 12290 12291 /* 12292 * If the user requested specific flags in the pattern (e.g. 12293 * CTL_LUN_PAT_RANGE), make sure the command supports all of those 12294 * flags. 12295 * 12296 * If the user did not specify any flags, it doesn't matter whether 12297 * or not the command supports the flags. 12298 */ 12299 if ((filtered_pattern & ~CTL_LUN_PAT_MASK) != 12300 (pattern & ~CTL_LUN_PAT_MASK)) 12301 return (CTL_LUN_PAT_NONE); 12302 12303 /* 12304 * If the user asked for a range check, see if the requested LBA 12305 * range overlaps with this command's LBA range. 12306 */ 12307 if (filtered_pattern & CTL_LUN_PAT_RANGE) { 12308 uint64_t lba1; 12309 uint64_t len1; 12310 ctl_action action; 12311 int retval; 12312 12313 retval = ctl_get_lba_len((union ctl_io *)ctsio, &lba1, &len1); 12314 if (retval != 0) 12315 return (CTL_LUN_PAT_NONE); 12316 12317 action = ctl_extent_check_lba(lba1, len1, desc->lba_range.lba, 12318 desc->lba_range.len, FALSE); 12319 /* 12320 * A "pass" means that the LBA ranges don't overlap, so 12321 * this doesn't match the user's range criteria. 12322 */ 12323 if (action == CTL_ACTION_PASS) 12324 return (CTL_LUN_PAT_NONE); 12325 } 12326 12327 return (filtered_pattern); 12328} 12329 12330static void 12331ctl_inject_error(struct ctl_lun *lun, union ctl_io *io) 12332{ 12333 struct ctl_error_desc *desc, *desc2; 12334 12335 mtx_assert(&lun->lun_lock, MA_OWNED); 12336 12337 STAILQ_FOREACH_SAFE(desc, &lun->error_list, links, desc2) { 12338 ctl_lun_error_pattern pattern; 12339 /* 12340 * Check to see whether this particular command matches 12341 * the pattern in the descriptor. 12342 */ 12343 pattern = ctl_cmd_pattern_match(&io->scsiio, desc); 12344 if ((pattern & CTL_LUN_PAT_MASK) == CTL_LUN_PAT_NONE) 12345 continue; 12346 12347 switch (desc->lun_error & CTL_LUN_INJ_TYPE) { 12348 case CTL_LUN_INJ_ABORTED: 12349 ctl_set_aborted(&io->scsiio); 12350 break; 12351 case CTL_LUN_INJ_MEDIUM_ERR: 12352 ctl_set_medium_error(&io->scsiio, 12353 (io->io_hdr.flags & CTL_FLAG_DATA_MASK) != 12354 CTL_FLAG_DATA_OUT); 12355 break; 12356 case CTL_LUN_INJ_UA: 12357 /* 29h/00h POWER ON, RESET, OR BUS DEVICE RESET 12358 * OCCURRED */ 12359 ctl_set_ua(&io->scsiio, 0x29, 0x00); 12360 break; 12361 case CTL_LUN_INJ_CUSTOM: 12362 /* 12363 * We're assuming the user knows what he is doing. 12364 * Just copy the sense information without doing 12365 * checks. 12366 */ 12367 bcopy(&desc->custom_sense, &io->scsiio.sense_data, 12368 MIN(sizeof(desc->custom_sense), 12369 sizeof(io->scsiio.sense_data))); 12370 io->scsiio.scsi_status = SCSI_STATUS_CHECK_COND; 12371 io->scsiio.sense_len = SSD_FULL_SIZE; 12372 io->io_hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 12373 break; 12374 case CTL_LUN_INJ_NONE: 12375 default: 12376 /* 12377 * If this is an error injection type we don't know 12378 * about, clear the continuous flag (if it is set) 12379 * so it will get deleted below. 12380 */ 12381 desc->lun_error &= ~CTL_LUN_INJ_CONTINUOUS; 12382 break; 12383 } 12384 /* 12385 * By default, each error injection action is a one-shot 12386 */ 12387 if (desc->lun_error & CTL_LUN_INJ_CONTINUOUS) 12388 continue; 12389 12390 STAILQ_REMOVE(&lun->error_list, desc, ctl_error_desc, links); 12391 12392 free(desc, M_CTL); 12393 } 12394} 12395 12396#ifdef CTL_IO_DELAY 12397static void 12398ctl_datamove_timer_wakeup(void *arg) 12399{ 12400 union ctl_io *io; 12401 12402 io = (union ctl_io *)arg; 12403 12404 ctl_datamove(io); 12405} 12406#endif /* CTL_IO_DELAY */ 12407 12408void 12409ctl_datamove(union ctl_io *io) 12410{ 12411 struct ctl_lun *lun; 12412 void (*fe_datamove)(union ctl_io *io); 12413 12414 mtx_assert(&control_softc->ctl_lock, MA_NOTOWNED); 12415 12416 CTL_DEBUG_PRINT(("ctl_datamove\n")); 12417 12418 lun = (struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 12419#ifdef CTL_TIME_IO 12420 if ((time_uptime - io->io_hdr.start_time) > ctl_time_io_secs) { 12421 char str[256]; 12422 char path_str[64]; 12423 struct sbuf sb; 12424 12425 ctl_scsi_path_string(io, path_str, sizeof(path_str)); 12426 sbuf_new(&sb, str, sizeof(str), SBUF_FIXEDLEN); 12427 12428 sbuf_cat(&sb, path_str); 12429 switch (io->io_hdr.io_type) { 12430 case CTL_IO_SCSI: 12431 ctl_scsi_command_string(&io->scsiio, NULL, &sb); 12432 sbuf_printf(&sb, "\n"); 12433 sbuf_cat(&sb, path_str); 12434 sbuf_printf(&sb, "Tag: 0x%04x, type %d\n", 12435 io->scsiio.tag_num, io->scsiio.tag_type); 12436 break; 12437 case CTL_IO_TASK: 12438 sbuf_printf(&sb, "Task I/O type: %d, Tag: 0x%04x, " 12439 "Tag Type: %d\n", io->taskio.task_action, 12440 io->taskio.tag_num, io->taskio.tag_type); 12441 break; 12442 default: 12443 printf("Invalid CTL I/O type %d\n", io->io_hdr.io_type); 12444 panic("Invalid CTL I/O type %d\n", io->io_hdr.io_type); 12445 break; 12446 } 12447 sbuf_cat(&sb, path_str); 12448 sbuf_printf(&sb, "ctl_datamove: %jd seconds\n", 12449 (intmax_t)time_uptime - io->io_hdr.start_time); 12450 sbuf_finish(&sb); 12451 printf("%s", sbuf_data(&sb)); 12452 } 12453#endif /* CTL_TIME_IO */ 12454 12455#ifdef CTL_IO_DELAY 12456 if (io->io_hdr.flags & CTL_FLAG_DELAY_DONE) { 12457 io->io_hdr.flags &= ~CTL_FLAG_DELAY_DONE; 12458 } else { 12459 if ((lun != NULL) 12460 && (lun->delay_info.datamove_delay > 0)) { 12461 12462 callout_init(&io->io_hdr.delay_callout, /*mpsafe*/ 1); 12463 io->io_hdr.flags |= CTL_FLAG_DELAY_DONE; 12464 callout_reset(&io->io_hdr.delay_callout, 12465 lun->delay_info.datamove_delay * hz, 12466 ctl_datamove_timer_wakeup, io); 12467 if (lun->delay_info.datamove_type == 12468 CTL_DELAY_TYPE_ONESHOT) 12469 lun->delay_info.datamove_delay = 0; 12470 return; 12471 } 12472 } 12473#endif 12474 12475 /* 12476 * This command has been aborted. Set the port status, so we fail 12477 * the data move. 12478 */ 12479 if (io->io_hdr.flags & CTL_FLAG_ABORT) { 12480 printf("ctl_datamove: tag 0x%04x on (%u:%u:%u) aborted\n", 12481 io->scsiio.tag_num, io->io_hdr.nexus.initid, 12482 io->io_hdr.nexus.targ_port, 12483 io->io_hdr.nexus.targ_lun); 12484 io->io_hdr.port_status = 31337; 12485 /* 12486 * Note that the backend, in this case, will get the 12487 * callback in its context. In other cases it may get 12488 * called in the frontend's interrupt thread context. 12489 */ 12490 io->scsiio.be_move_done(io); 12491 return; 12492 } 12493 12494 /* Don't confuse frontend with zero length data move. */ 12495 if (io->scsiio.kern_data_len == 0) { 12496 io->scsiio.be_move_done(io); 12497 return; 12498 } 12499 12500 /* 12501 * If we're in XFER mode and this I/O is from the other shelf 12502 * controller, we need to send the DMA to the other side to 12503 * actually transfer the data to/from the host. In serialize only 12504 * mode the transfer happens below CTL and ctl_datamove() is only 12505 * called on the machine that originally received the I/O. 12506 */ 12507 if ((control_softc->ha_mode == CTL_HA_MODE_XFER) 12508 && (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)) { 12509 union ctl_ha_msg msg; 12510 uint32_t sg_entries_sent; 12511 int do_sg_copy; 12512 int i; 12513 12514 memset(&msg, 0, sizeof(msg)); 12515 msg.hdr.msg_type = CTL_MSG_DATAMOVE; 12516 msg.hdr.original_sc = io->io_hdr.original_sc; 12517 msg.hdr.serializing_sc = io; 12518 msg.hdr.nexus = io->io_hdr.nexus; 12519 msg.hdr.status = io->io_hdr.status; 12520 msg.dt.flags = io->io_hdr.flags; 12521 /* 12522 * We convert everything into a S/G list here. We can't 12523 * pass by reference, only by value between controllers. 12524 * So we can't pass a pointer to the S/G list, only as many 12525 * S/G entries as we can fit in here. If it's possible for 12526 * us to get more than CTL_HA_MAX_SG_ENTRIES S/G entries, 12527 * then we need to break this up into multiple transfers. 12528 */ 12529 if (io->scsiio.kern_sg_entries == 0) { 12530 msg.dt.kern_sg_entries = 1; 12531#if 0 12532 /* 12533 * Convert to a physical address if this is a 12534 * virtual address. 12535 */ 12536 if (io->io_hdr.flags & CTL_FLAG_BUS_ADDR) { 12537 msg.dt.sg_list[0].addr = 12538 io->scsiio.kern_data_ptr; 12539 } else { 12540 /* 12541 * XXX KDM use busdma here! 12542 */ 12543 msg.dt.sg_list[0].addr = (void *) 12544 vtophys(io->scsiio.kern_data_ptr); 12545 } 12546#else 12547 KASSERT((io->io_hdr.flags & CTL_FLAG_BUS_ADDR) == 0, 12548 ("HA does not support BUS_ADDR")); 12549 msg.dt.sg_list[0].addr = io->scsiio.kern_data_ptr; 12550#endif 12551 12552 msg.dt.sg_list[0].len = io->scsiio.kern_data_len; 12553 do_sg_copy = 0; 12554 } else { 12555 msg.dt.kern_sg_entries = io->scsiio.kern_sg_entries; 12556 do_sg_copy = 1; 12557 } 12558 12559 msg.dt.kern_data_len = io->scsiio.kern_data_len; 12560 msg.dt.kern_total_len = io->scsiio.kern_total_len; 12561 msg.dt.kern_data_resid = io->scsiio.kern_data_resid; 12562 msg.dt.kern_rel_offset = io->scsiio.kern_rel_offset; 12563 msg.dt.sg_sequence = 0; 12564 12565 /* 12566 * Loop until we've sent all of the S/G entries. On the 12567 * other end, we'll recompose these S/G entries into one 12568 * contiguous list before passing it to the 12569 */ 12570 for (sg_entries_sent = 0; sg_entries_sent < 12571 msg.dt.kern_sg_entries; msg.dt.sg_sequence++) { 12572 msg.dt.cur_sg_entries = MIN((sizeof(msg.dt.sg_list)/ 12573 sizeof(msg.dt.sg_list[0])), 12574 msg.dt.kern_sg_entries - sg_entries_sent); 12575 12576 if (do_sg_copy != 0) { 12577 struct ctl_sg_entry *sgl; 12578 int j; 12579 12580 sgl = (struct ctl_sg_entry *) 12581 io->scsiio.kern_data_ptr; 12582 /* 12583 * If this is in cached memory, flush the cache 12584 * before we send the DMA request to the other 12585 * controller. We want to do this in either 12586 * the * read or the write case. The read 12587 * case is straightforward. In the write 12588 * case, we want to make sure nothing is 12589 * in the local cache that could overwrite 12590 * the DMAed data. 12591 */ 12592 12593 for (i = sg_entries_sent, j = 0; 12594 i < msg.dt.cur_sg_entries; i++, j++) { 12595#if 0 12596 if ((io->io_hdr.flags & 12597 CTL_FLAG_BUS_ADDR) == 0) { 12598 /* 12599 * XXX KDM use busdma. 12600 */ 12601 msg.dt.sg_list[j].addr =(void *) 12602 vtophys(sgl[i].addr); 12603 } else { 12604 msg.dt.sg_list[j].addr = 12605 sgl[i].addr; 12606 } 12607#else 12608 KASSERT((io->io_hdr.flags & 12609 CTL_FLAG_BUS_ADDR) == 0, 12610 ("HA does not support BUS_ADDR")); 12611 msg.dt.sg_list[j].addr = sgl[i].addr; 12612#endif 12613 msg.dt.sg_list[j].len = sgl[i].len; 12614 } 12615 } 12616 12617 sg_entries_sent += msg.dt.cur_sg_entries; 12618 if (sg_entries_sent >= msg.dt.kern_sg_entries) 12619 msg.dt.sg_last = 1; 12620 else 12621 msg.dt.sg_last = 0; 12622 12623 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, 12624 sizeof(msg.dt) - sizeof(msg.dt.sg_list) + 12625 sizeof(struct ctl_sg_entry)*msg.dt.cur_sg_entries, 12626 M_WAITOK) > CTL_HA_STATUS_SUCCESS) { 12627 io->io_hdr.port_status = 31341; 12628 io->scsiio.be_move_done(io); 12629 return; 12630 } 12631 12632 msg.dt.sent_sg_entries = sg_entries_sent; 12633 } 12634 12635 /* 12636 * Officially handover the request from us to peer. 12637 * If failover has just happened, then we must return error. 12638 * If failover happen just after, then it is not our problem. 12639 */ 12640 if (lun) 12641 mtx_lock(&lun->lun_lock); 12642 if (io->io_hdr.flags & CTL_FLAG_FAILOVER) { 12643 if (lun) 12644 mtx_unlock(&lun->lun_lock); 12645 io->io_hdr.port_status = 31342; 12646 io->scsiio.be_move_done(io); 12647 return; 12648 } 12649 io->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 12650 io->io_hdr.flags |= CTL_FLAG_DMA_INPROG; 12651 if (lun) 12652 mtx_unlock(&lun->lun_lock); 12653 } else { 12654 12655 /* 12656 * Lookup the fe_datamove() function for this particular 12657 * front end. 12658 */ 12659 fe_datamove = ctl_io_port(&io->io_hdr)->fe_datamove; 12660 12661 fe_datamove(io); 12662 } 12663} 12664 12665static void 12666ctl_send_datamove_done(union ctl_io *io, int have_lock) 12667{ 12668 union ctl_ha_msg msg; 12669 12670 memset(&msg, 0, sizeof(msg)); 12671 12672 msg.hdr.msg_type = CTL_MSG_DATAMOVE_DONE; 12673 msg.hdr.original_sc = io; 12674 msg.hdr.serializing_sc = io->io_hdr.serializing_sc; 12675 msg.hdr.nexus = io->io_hdr.nexus; 12676 msg.hdr.status = io->io_hdr.status; 12677 msg.scsi.tag_num = io->scsiio.tag_num; 12678 msg.scsi.tag_type = io->scsiio.tag_type; 12679 msg.scsi.scsi_status = io->scsiio.scsi_status; 12680 memcpy(&msg.scsi.sense_data, &io->scsiio.sense_data, 12681 io->scsiio.sense_len); 12682 msg.scsi.sense_len = io->scsiio.sense_len; 12683 msg.scsi.sense_residual = io->scsiio.sense_residual; 12684 msg.scsi.fetd_status = io->io_hdr.port_status; 12685 msg.scsi.residual = io->scsiio.residual; 12686 io->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 12687 12688 if (io->io_hdr.flags & CTL_FLAG_FAILOVER) { 12689 ctl_failover_io(io, /*have_lock*/ have_lock); 12690 return; 12691 } 12692 12693 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, 12694 sizeof(msg.scsi) - sizeof(msg.scsi.sense_data) + 12695 msg.scsi.sense_len, M_WAITOK); 12696} 12697 12698/* 12699 * The DMA to the remote side is done, now we need to tell the other side 12700 * we're done so it can continue with its data movement. 12701 */ 12702static void 12703ctl_datamove_remote_write_cb(struct ctl_ha_dt_req *rq) 12704{ 12705 union ctl_io *io; 12706 int i; 12707 12708 io = rq->context; 12709 12710 if (rq->ret != CTL_HA_STATUS_SUCCESS) { 12711 printf("%s: ISC DMA write failed with error %d", __func__, 12712 rq->ret); 12713 ctl_set_internal_failure(&io->scsiio, 12714 /*sks_valid*/ 1, 12715 /*retry_count*/ rq->ret); 12716 } 12717 12718 ctl_dt_req_free(rq); 12719 12720 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 12721 free(io->io_hdr.local_sglist[i].addr, M_CTL); 12722 free(io->io_hdr.remote_sglist, M_CTL); 12723 io->io_hdr.remote_sglist = NULL; 12724 io->io_hdr.local_sglist = NULL; 12725 12726 /* 12727 * The data is in local and remote memory, so now we need to send 12728 * status (good or back) back to the other side. 12729 */ 12730 ctl_send_datamove_done(io, /*have_lock*/ 0); 12731} 12732 12733/* 12734 * We've moved the data from the host/controller into local memory. Now we 12735 * need to push it over to the remote controller's memory. 12736 */ 12737static int 12738ctl_datamove_remote_dm_write_cb(union ctl_io *io) 12739{ 12740 int retval; 12741 12742 retval = ctl_datamove_remote_xfer(io, CTL_HA_DT_CMD_WRITE, 12743 ctl_datamove_remote_write_cb); 12744 return (retval); 12745} 12746 12747static void 12748ctl_datamove_remote_write(union ctl_io *io) 12749{ 12750 int retval; 12751 void (*fe_datamove)(union ctl_io *io); 12752 12753 /* 12754 * - Get the data from the host/HBA into local memory. 12755 * - DMA memory from the local controller to the remote controller. 12756 * - Send status back to the remote controller. 12757 */ 12758 12759 retval = ctl_datamove_remote_sgl_setup(io); 12760 if (retval != 0) 12761 return; 12762 12763 /* Switch the pointer over so the FETD knows what to do */ 12764 io->scsiio.kern_data_ptr = (uint8_t *)io->io_hdr.local_sglist; 12765 12766 /* 12767 * Use a custom move done callback, since we need to send completion 12768 * back to the other controller, not to the backend on this side. 12769 */ 12770 io->scsiio.be_move_done = ctl_datamove_remote_dm_write_cb; 12771 12772 fe_datamove = ctl_io_port(&io->io_hdr)->fe_datamove; 12773 fe_datamove(io); 12774} 12775 12776static int 12777ctl_datamove_remote_dm_read_cb(union ctl_io *io) 12778{ 12779#if 0 12780 char str[256]; 12781 char path_str[64]; 12782 struct sbuf sb; 12783#endif 12784 int i; 12785 12786 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 12787 free(io->io_hdr.local_sglist[i].addr, M_CTL); 12788 free(io->io_hdr.remote_sglist, M_CTL); 12789 io->io_hdr.remote_sglist = NULL; 12790 io->io_hdr.local_sglist = NULL; 12791 12792#if 0 12793 scsi_path_string(io, path_str, sizeof(path_str)); 12794 sbuf_new(&sb, str, sizeof(str), SBUF_FIXEDLEN); 12795 sbuf_cat(&sb, path_str); 12796 scsi_command_string(&io->scsiio, NULL, &sb); 12797 sbuf_printf(&sb, "\n"); 12798 sbuf_cat(&sb, path_str); 12799 sbuf_printf(&sb, "Tag: 0x%04x, type %d\n", 12800 io->scsiio.tag_num, io->scsiio.tag_type); 12801 sbuf_cat(&sb, path_str); 12802 sbuf_printf(&sb, "%s: flags %#x, status %#x\n", __func__, 12803 io->io_hdr.flags, io->io_hdr.status); 12804 sbuf_finish(&sb); 12805 printk("%s", sbuf_data(&sb)); 12806#endif 12807 12808 12809 /* 12810 * The read is done, now we need to send status (good or bad) back 12811 * to the other side. 12812 */ 12813 ctl_send_datamove_done(io, /*have_lock*/ 0); 12814 12815 return (0); 12816} 12817 12818static void 12819ctl_datamove_remote_read_cb(struct ctl_ha_dt_req *rq) 12820{ 12821 union ctl_io *io; 12822 void (*fe_datamove)(union ctl_io *io); 12823 12824 io = rq->context; 12825 12826 if (rq->ret != CTL_HA_STATUS_SUCCESS) { 12827 printf("%s: ISC DMA read failed with error %d\n", __func__, 12828 rq->ret); 12829 ctl_set_internal_failure(&io->scsiio, 12830 /*sks_valid*/ 1, 12831 /*retry_count*/ rq->ret); 12832 } 12833 12834 ctl_dt_req_free(rq); 12835 12836 /* Switch the pointer over so the FETD knows what to do */ 12837 io->scsiio.kern_data_ptr = (uint8_t *)io->io_hdr.local_sglist; 12838 12839 /* 12840 * Use a custom move done callback, since we need to send completion 12841 * back to the other controller, not to the backend on this side. 12842 */ 12843 io->scsiio.be_move_done = ctl_datamove_remote_dm_read_cb; 12844 12845 /* XXX KDM add checks like the ones in ctl_datamove? */ 12846 12847 fe_datamove = ctl_io_port(&io->io_hdr)->fe_datamove; 12848 fe_datamove(io); 12849} 12850 12851static int 12852ctl_datamove_remote_sgl_setup(union ctl_io *io) 12853{ 12854 struct ctl_sg_entry *local_sglist; 12855 struct ctl_softc *softc; 12856 uint32_t len_to_go; 12857 int retval; 12858 int i; 12859 12860 retval = 0; 12861 softc = control_softc; 12862 local_sglist = io->io_hdr.local_sglist; 12863 len_to_go = io->scsiio.kern_data_len; 12864 12865 /* 12866 * The difficult thing here is that the size of the various 12867 * S/G segments may be different than the size from the 12868 * remote controller. That'll make it harder when DMAing 12869 * the data back to the other side. 12870 */ 12871 for (i = 0; len_to_go > 0; i++) { 12872 local_sglist[i].len = MIN(len_to_go, CTL_HA_DATAMOVE_SEGMENT); 12873 local_sglist[i].addr = 12874 malloc(local_sglist[i].len, M_CTL, M_WAITOK); 12875 12876 len_to_go -= local_sglist[i].len; 12877 } 12878 /* 12879 * Reset the number of S/G entries accordingly. The original 12880 * number of S/G entries is available in rem_sg_entries. 12881 */ 12882 io->scsiio.kern_sg_entries = i; 12883 12884#if 0 12885 printf("%s: kern_sg_entries = %d\n", __func__, 12886 io->scsiio.kern_sg_entries); 12887 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 12888 printf("%s: sg[%d] = %p, %lu\n", __func__, i, 12889 local_sglist[i].addr, local_sglist[i].len); 12890#endif 12891 12892 return (retval); 12893} 12894 12895static int 12896ctl_datamove_remote_xfer(union ctl_io *io, unsigned command, 12897 ctl_ha_dt_cb callback) 12898{ 12899 struct ctl_ha_dt_req *rq; 12900 struct ctl_sg_entry *remote_sglist, *local_sglist; 12901 uint32_t local_used, remote_used, total_used; 12902 int i, j, isc_ret; 12903 12904 rq = ctl_dt_req_alloc(); 12905 12906 /* 12907 * If we failed to allocate the request, and if the DMA didn't fail 12908 * anyway, set busy status. This is just a resource allocation 12909 * failure. 12910 */ 12911 if ((rq == NULL) 12912 && ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE && 12913 (io->io_hdr.status & CTL_STATUS_MASK) != CTL_SUCCESS)) 12914 ctl_set_busy(&io->scsiio); 12915 12916 if ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE && 12917 (io->io_hdr.status & CTL_STATUS_MASK) != CTL_SUCCESS) { 12918 12919 if (rq != NULL) 12920 ctl_dt_req_free(rq); 12921 12922 /* 12923 * The data move failed. We need to return status back 12924 * to the other controller. No point in trying to DMA 12925 * data to the remote controller. 12926 */ 12927 12928 ctl_send_datamove_done(io, /*have_lock*/ 0); 12929 12930 return (1); 12931 } 12932 12933 local_sglist = io->io_hdr.local_sglist; 12934 remote_sglist = io->io_hdr.remote_sglist; 12935 local_used = 0; 12936 remote_used = 0; 12937 total_used = 0; 12938 12939 /* 12940 * Pull/push the data over the wire from/to the other controller. 12941 * This takes into account the possibility that the local and 12942 * remote sglists may not be identical in terms of the size of 12943 * the elements and the number of elements. 12944 * 12945 * One fundamental assumption here is that the length allocated for 12946 * both the local and remote sglists is identical. Otherwise, we've 12947 * essentially got a coding error of some sort. 12948 */ 12949 isc_ret = CTL_HA_STATUS_SUCCESS; 12950 for (i = 0, j = 0; total_used < io->scsiio.kern_data_len; ) { 12951 uint32_t cur_len; 12952 uint8_t *tmp_ptr; 12953 12954 rq->command = command; 12955 rq->context = io; 12956 12957 /* 12958 * Both pointers should be aligned. But it is possible 12959 * that the allocation length is not. They should both 12960 * also have enough slack left over at the end, though, 12961 * to round up to the next 8 byte boundary. 12962 */ 12963 cur_len = MIN(local_sglist[i].len - local_used, 12964 remote_sglist[j].len - remote_used); 12965 rq->size = cur_len; 12966 12967 tmp_ptr = (uint8_t *)local_sglist[i].addr; 12968 tmp_ptr += local_used; 12969 12970#if 0 12971 /* Use physical addresses when talking to ISC hardware */ 12972 if ((io->io_hdr.flags & CTL_FLAG_BUS_ADDR) == 0) { 12973 /* XXX KDM use busdma */ 12974 rq->local = vtophys(tmp_ptr); 12975 } else 12976 rq->local = tmp_ptr; 12977#else 12978 KASSERT((io->io_hdr.flags & CTL_FLAG_BUS_ADDR) == 0, 12979 ("HA does not support BUS_ADDR")); 12980 rq->local = tmp_ptr; 12981#endif 12982 12983 tmp_ptr = (uint8_t *)remote_sglist[j].addr; 12984 tmp_ptr += remote_used; 12985 rq->remote = tmp_ptr; 12986 12987 rq->callback = NULL; 12988 12989 local_used += cur_len; 12990 if (local_used >= local_sglist[i].len) { 12991 i++; 12992 local_used = 0; 12993 } 12994 12995 remote_used += cur_len; 12996 if (remote_used >= remote_sglist[j].len) { 12997 j++; 12998 remote_used = 0; 12999 } 13000 total_used += cur_len; 13001 13002 if (total_used >= io->scsiio.kern_data_len) 13003 rq->callback = callback; 13004 13005#if 0 13006 printf("%s: %s: local %p remote %p size %d\n", __func__, 13007 (command == CTL_HA_DT_CMD_WRITE) ? "WRITE" : "READ", 13008 rq->local, rq->remote, rq->size); 13009#endif 13010 13011 isc_ret = ctl_dt_single(rq); 13012 if (isc_ret > CTL_HA_STATUS_SUCCESS) 13013 break; 13014 } 13015 if (isc_ret != CTL_HA_STATUS_WAIT) { 13016 rq->ret = isc_ret; 13017 callback(rq); 13018 } 13019 13020 return (0); 13021} 13022 13023static void 13024ctl_datamove_remote_read(union ctl_io *io) 13025{ 13026 int retval; 13027 int i; 13028 13029 /* 13030 * This will send an error to the other controller in the case of a 13031 * failure. 13032 */ 13033 retval = ctl_datamove_remote_sgl_setup(io); 13034 if (retval != 0) 13035 return; 13036 13037 retval = ctl_datamove_remote_xfer(io, CTL_HA_DT_CMD_READ, 13038 ctl_datamove_remote_read_cb); 13039 if (retval != 0) { 13040 /* 13041 * Make sure we free memory if there was an error.. The 13042 * ctl_datamove_remote_xfer() function will send the 13043 * datamove done message, or call the callback with an 13044 * error if there is a problem. 13045 */ 13046 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 13047 free(io->io_hdr.local_sglist[i].addr, M_CTL); 13048 free(io->io_hdr.remote_sglist, M_CTL); 13049 io->io_hdr.remote_sglist = NULL; 13050 io->io_hdr.local_sglist = NULL; 13051 } 13052} 13053 13054/* 13055 * Process a datamove request from the other controller. This is used for 13056 * XFER mode only, not SER_ONLY mode. For writes, we DMA into local memory 13057 * first. Once that is complete, the data gets DMAed into the remote 13058 * controller's memory. For reads, we DMA from the remote controller's 13059 * memory into our memory first, and then move it out to the FETD. 13060 */ 13061static void 13062ctl_datamove_remote(union ctl_io *io) 13063{ 13064 13065 mtx_assert(&control_softc->ctl_lock, MA_NOTOWNED); 13066 13067 if (io->io_hdr.flags & CTL_FLAG_FAILOVER) { 13068 ctl_failover_io(io, /*have_lock*/ 0); 13069 return; 13070 } 13071 13072 /* 13073 * Note that we look for an aborted I/O here, but don't do some of 13074 * the other checks that ctl_datamove() normally does. 13075 * We don't need to run the datamove delay code, since that should 13076 * have been done if need be on the other controller. 13077 */ 13078 if (io->io_hdr.flags & CTL_FLAG_ABORT) { 13079 printf("%s: tag 0x%04x on (%u:%u:%u) aborted\n", __func__, 13080 io->scsiio.tag_num, io->io_hdr.nexus.initid, 13081 io->io_hdr.nexus.targ_port, 13082 io->io_hdr.nexus.targ_lun); 13083 io->io_hdr.port_status = 31338; 13084 ctl_send_datamove_done(io, /*have_lock*/ 0); 13085 return; 13086 } 13087 13088 if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_OUT) 13089 ctl_datamove_remote_write(io); 13090 else if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_IN) 13091 ctl_datamove_remote_read(io); 13092 else { 13093 io->io_hdr.port_status = 31339; 13094 ctl_send_datamove_done(io, /*have_lock*/ 0); 13095 } 13096} 13097 13098static int 13099ctl_process_done(union ctl_io *io) 13100{ 13101 struct ctl_lun *lun; 13102 struct ctl_softc *softc = control_softc; 13103 void (*fe_done)(union ctl_io *io); 13104 union ctl_ha_msg msg; 13105 uint32_t targ_port = io->io_hdr.nexus.targ_port; 13106 13107 CTL_DEBUG_PRINT(("ctl_process_done\n")); 13108 13109 if ((io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) == 0) 13110 fe_done = softc->ctl_ports[targ_port]->fe_done; 13111 else 13112 fe_done = NULL; 13113 13114#ifdef CTL_TIME_IO 13115 if ((time_uptime - io->io_hdr.start_time) > ctl_time_io_secs) { 13116 char str[256]; 13117 char path_str[64]; 13118 struct sbuf sb; 13119 13120 ctl_scsi_path_string(io, path_str, sizeof(path_str)); 13121 sbuf_new(&sb, str, sizeof(str), SBUF_FIXEDLEN); 13122 13123 sbuf_cat(&sb, path_str); 13124 switch (io->io_hdr.io_type) { 13125 case CTL_IO_SCSI: 13126 ctl_scsi_command_string(&io->scsiio, NULL, &sb); 13127 sbuf_printf(&sb, "\n"); 13128 sbuf_cat(&sb, path_str); 13129 sbuf_printf(&sb, "Tag: 0x%04x, type %d\n", 13130 io->scsiio.tag_num, io->scsiio.tag_type); 13131 break; 13132 case CTL_IO_TASK: 13133 sbuf_printf(&sb, "Task I/O type: %d, Tag: 0x%04x, " 13134 "Tag Type: %d\n", io->taskio.task_action, 13135 io->taskio.tag_num, io->taskio.tag_type); 13136 break; 13137 default: 13138 printf("Invalid CTL I/O type %d\n", io->io_hdr.io_type); 13139 panic("Invalid CTL I/O type %d\n", io->io_hdr.io_type); 13140 break; 13141 } 13142 sbuf_cat(&sb, path_str); 13143 sbuf_printf(&sb, "ctl_process_done: %jd seconds\n", 13144 (intmax_t)time_uptime - io->io_hdr.start_time); 13145 sbuf_finish(&sb); 13146 printf("%s", sbuf_data(&sb)); 13147 } 13148#endif /* CTL_TIME_IO */ 13149 13150 switch (io->io_hdr.io_type) { 13151 case CTL_IO_SCSI: 13152 break; 13153 case CTL_IO_TASK: 13154 if (ctl_debug & CTL_DEBUG_INFO) 13155 ctl_io_error_print(io, NULL); 13156 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) 13157 ctl_free_io(io); 13158 else 13159 fe_done(io); 13160 return (CTL_RETVAL_COMPLETE); 13161 default: 13162 panic("ctl_process_done: invalid io type %d\n", 13163 io->io_hdr.io_type); 13164 break; /* NOTREACHED */ 13165 } 13166 13167 lun = (struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 13168 if (lun == NULL) { 13169 CTL_DEBUG_PRINT(("NULL LUN for lun %d\n", 13170 io->io_hdr.nexus.targ_mapped_lun)); 13171 goto bailout; 13172 } 13173 13174 mtx_lock(&lun->lun_lock); 13175 13176 /* 13177 * Check to see if we have any errors to inject here. We only 13178 * inject errors for commands that don't already have errors set. 13179 */ 13180 if ((STAILQ_FIRST(&lun->error_list) != NULL) && 13181 ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS) && 13182 ((io->io_hdr.flags & CTL_FLAG_STATUS_SENT) == 0)) 13183 ctl_inject_error(lun, io); 13184 13185 /* 13186 * XXX KDM how do we treat commands that aren't completed 13187 * successfully? 13188 * 13189 * XXX KDM should we also track I/O latency? 13190 */ 13191 if ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS && 13192 io->io_hdr.io_type == CTL_IO_SCSI) { 13193#ifdef CTL_TIME_IO 13194 struct bintime cur_bt; 13195#endif 13196 int type; 13197 13198 if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == 13199 CTL_FLAG_DATA_IN) 13200 type = CTL_STATS_READ; 13201 else if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == 13202 CTL_FLAG_DATA_OUT) 13203 type = CTL_STATS_WRITE; 13204 else 13205 type = CTL_STATS_NO_IO; 13206 13207 lun->stats.ports[targ_port].bytes[type] += 13208 io->scsiio.kern_total_len; 13209 lun->stats.ports[targ_port].operations[type]++; 13210#ifdef CTL_TIME_IO 13211 bintime_add(&lun->stats.ports[targ_port].dma_time[type], 13212 &io->io_hdr.dma_bt); 13213 lun->stats.ports[targ_port].num_dmas[type] += 13214 io->io_hdr.num_dmas; 13215 getbintime(&cur_bt); 13216 bintime_sub(&cur_bt, &io->io_hdr.start_bt); 13217 bintime_add(&lun->stats.ports[targ_port].time[type], &cur_bt); 13218#endif 13219 } 13220 13221 /* 13222 * Remove this from the OOA queue. 13223 */ 13224 TAILQ_REMOVE(&lun->ooa_queue, &io->io_hdr, ooa_links); 13225#ifdef CTL_TIME_IO 13226 if (TAILQ_EMPTY(&lun->ooa_queue)) 13227 lun->last_busy = getsbinuptime(); 13228#endif 13229 13230 /* 13231 * Run through the blocked queue on this LUN and see if anything 13232 * has become unblocked, now that this transaction is done. 13233 */ 13234 ctl_check_blocked(lun); 13235 13236 /* 13237 * If the LUN has been invalidated, free it if there is nothing 13238 * left on its OOA queue. 13239 */ 13240 if ((lun->flags & CTL_LUN_INVALID) 13241 && TAILQ_EMPTY(&lun->ooa_queue)) { 13242 mtx_unlock(&lun->lun_lock); 13243 mtx_lock(&softc->ctl_lock); 13244 ctl_free_lun(lun); 13245 mtx_unlock(&softc->ctl_lock); 13246 } else 13247 mtx_unlock(&lun->lun_lock); 13248 13249bailout: 13250 13251 /* 13252 * If this command has been aborted, make sure we set the status 13253 * properly. The FETD is responsible for freeing the I/O and doing 13254 * whatever it needs to do to clean up its state. 13255 */ 13256 if (io->io_hdr.flags & CTL_FLAG_ABORT) 13257 ctl_set_task_aborted(&io->scsiio); 13258 13259 /* 13260 * If enabled, print command error status. 13261 */ 13262 if ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_SUCCESS && 13263 (ctl_debug & CTL_DEBUG_INFO) != 0) 13264 ctl_io_error_print(io, NULL); 13265 13266 /* 13267 * Tell the FETD or the other shelf controller we're done with this 13268 * command. Note that only SCSI commands get to this point. Task 13269 * management commands are completed above. 13270 */ 13271 if ((softc->ha_mode != CTL_HA_MODE_XFER) && 13272 (io->io_hdr.flags & CTL_FLAG_SENT_2OTHER_SC)) { 13273 memset(&msg, 0, sizeof(msg)); 13274 msg.hdr.msg_type = CTL_MSG_FINISH_IO; 13275 msg.hdr.serializing_sc = io->io_hdr.serializing_sc; 13276 msg.hdr.nexus = io->io_hdr.nexus; 13277 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, 13278 sizeof(msg.scsi) - sizeof(msg.scsi.sense_data), 13279 M_WAITOK); 13280 } 13281 if ((softc->ha_mode == CTL_HA_MODE_XFER) 13282 && (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)) { 13283 memset(&msg, 0, sizeof(msg)); 13284 msg.hdr.msg_type = CTL_MSG_FINISH_IO; 13285 msg.hdr.original_sc = io->io_hdr.original_sc; 13286 msg.hdr.nexus = io->io_hdr.nexus; 13287 msg.hdr.status = io->io_hdr.status; 13288 msg.scsi.scsi_status = io->scsiio.scsi_status; 13289 msg.scsi.tag_num = io->scsiio.tag_num; 13290 msg.scsi.tag_type = io->scsiio.tag_type; 13291 msg.scsi.sense_len = io->scsiio.sense_len; 13292 msg.scsi.sense_residual = io->scsiio.sense_residual; 13293 msg.scsi.residual = io->scsiio.residual; 13294 memcpy(&msg.scsi.sense_data, &io->scsiio.sense_data, 13295 io->scsiio.sense_len); 13296 13297 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, 13298 sizeof(msg.scsi) - sizeof(msg.scsi.sense_data) + 13299 msg.scsi.sense_len, M_WAITOK); 13300 ctl_free_io(io); 13301 } else 13302 fe_done(io); 13303 13304 return (CTL_RETVAL_COMPLETE); 13305} 13306 13307#ifdef CTL_WITH_CA 13308/* 13309 * Front end should call this if it doesn't do autosense. When the request 13310 * sense comes back in from the initiator, we'll dequeue this and send it. 13311 */ 13312int 13313ctl_queue_sense(union ctl_io *io) 13314{ 13315 struct ctl_lun *lun; 13316 struct ctl_port *port; 13317 struct ctl_softc *softc; 13318 uint32_t initidx, targ_lun; 13319 13320 softc = control_softc; 13321 13322 CTL_DEBUG_PRINT(("ctl_queue_sense\n")); 13323 13324 /* 13325 * LUN lookup will likely move to the ctl_work_thread() once we 13326 * have our new queueing infrastructure (that doesn't put things on 13327 * a per-LUN queue initially). That is so that we can handle 13328 * things like an INQUIRY to a LUN that we don't have enabled. We 13329 * can't deal with that right now. 13330 */ 13331 mtx_lock(&softc->ctl_lock); 13332 13333 /* 13334 * If we don't have a LUN for this, just toss the sense 13335 * information. 13336 */ 13337 port = ctl_io_port(&ctsio->io_hdr); 13338 targ_lun = ctl_lun_map_from_port(port, io->io_hdr.nexus.targ_lun); 13339 if ((targ_lun < CTL_MAX_LUNS) 13340 && (softc->ctl_luns[targ_lun] != NULL)) 13341 lun = softc->ctl_luns[targ_lun]; 13342 else 13343 goto bailout; 13344 13345 initidx = ctl_get_initindex(&io->io_hdr.nexus); 13346 13347 mtx_lock(&lun->lun_lock); 13348 /* 13349 * Already have CA set for this LUN...toss the sense information. 13350 */ 13351 if (ctl_is_set(lun->have_ca, initidx)) { 13352 mtx_unlock(&lun->lun_lock); 13353 goto bailout; 13354 } 13355 13356 memcpy(&lun->pending_sense[initidx], &io->scsiio.sense_data, 13357 MIN(sizeof(lun->pending_sense[initidx]), 13358 sizeof(io->scsiio.sense_data))); 13359 ctl_set_mask(lun->have_ca, initidx); 13360 mtx_unlock(&lun->lun_lock); 13361 13362bailout: 13363 mtx_unlock(&softc->ctl_lock); 13364 13365 ctl_free_io(io); 13366 13367 return (CTL_RETVAL_COMPLETE); 13368} 13369#endif 13370 13371/* 13372 * Primary command inlet from frontend ports. All SCSI and task I/O 13373 * requests must go through this function. 13374 */ 13375int 13376ctl_queue(union ctl_io *io) 13377{ 13378 struct ctl_port *port; 13379 13380 CTL_DEBUG_PRINT(("ctl_queue cdb[0]=%02X\n", io->scsiio.cdb[0])); 13381 13382#ifdef CTL_TIME_IO 13383 io->io_hdr.start_time = time_uptime; 13384 getbintime(&io->io_hdr.start_bt); 13385#endif /* CTL_TIME_IO */ 13386 13387 /* Map FE-specific LUN ID into global one. */ 13388 port = ctl_io_port(&io->io_hdr); 13389 io->io_hdr.nexus.targ_mapped_lun = 13390 ctl_lun_map_from_port(port, io->io_hdr.nexus.targ_lun); 13391 13392 switch (io->io_hdr.io_type) { 13393 case CTL_IO_SCSI: 13394 case CTL_IO_TASK: 13395 if (ctl_debug & CTL_DEBUG_CDB) 13396 ctl_io_print(io); 13397 ctl_enqueue_incoming(io); 13398 break; 13399 default: 13400 printf("ctl_queue: unknown I/O type %d\n", io->io_hdr.io_type); 13401 return (EINVAL); 13402 } 13403 13404 return (CTL_RETVAL_COMPLETE); 13405} 13406 13407#ifdef CTL_IO_DELAY 13408static void 13409ctl_done_timer_wakeup(void *arg) 13410{ 13411 union ctl_io *io; 13412 13413 io = (union ctl_io *)arg; 13414 ctl_done(io); 13415} 13416#endif /* CTL_IO_DELAY */ 13417 13418void 13419ctl_serseq_done(union ctl_io *io) 13420{ 13421 struct ctl_lun *lun; 13422 13423 lun = (struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 13424 if (lun->be_lun == NULL || 13425 lun->be_lun->serseq == CTL_LUN_SERSEQ_OFF) 13426 return; 13427 mtx_lock(&lun->lun_lock); 13428 io->io_hdr.flags |= CTL_FLAG_SERSEQ_DONE; 13429 ctl_check_blocked(lun); 13430 mtx_unlock(&lun->lun_lock); 13431} 13432 13433void 13434ctl_done(union ctl_io *io) 13435{ 13436 13437 /* 13438 * Enable this to catch duplicate completion issues. 13439 */ 13440#if 0 13441 if (io->io_hdr.flags & CTL_FLAG_ALREADY_DONE) { 13442 printf("%s: type %d msg %d cdb %x iptl: " 13443 "%u:%u:%u tag 0x%04x " 13444 "flag %#x status %x\n", 13445 __func__, 13446 io->io_hdr.io_type, 13447 io->io_hdr.msg_type, 13448 io->scsiio.cdb[0], 13449 io->io_hdr.nexus.initid, 13450 io->io_hdr.nexus.targ_port, 13451 io->io_hdr.nexus.targ_lun, 13452 (io->io_hdr.io_type == 13453 CTL_IO_TASK) ? 13454 io->taskio.tag_num : 13455 io->scsiio.tag_num, 13456 io->io_hdr.flags, 13457 io->io_hdr.status); 13458 } else 13459 io->io_hdr.flags |= CTL_FLAG_ALREADY_DONE; 13460#endif 13461 13462 /* 13463 * This is an internal copy of an I/O, and should not go through 13464 * the normal done processing logic. 13465 */ 13466 if (io->io_hdr.flags & CTL_FLAG_INT_COPY) 13467 return; 13468 13469#ifdef CTL_IO_DELAY 13470 if (io->io_hdr.flags & CTL_FLAG_DELAY_DONE) { 13471 struct ctl_lun *lun; 13472 13473 lun =(struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 13474 13475 io->io_hdr.flags &= ~CTL_FLAG_DELAY_DONE; 13476 } else { 13477 struct ctl_lun *lun; 13478 13479 lun =(struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 13480 13481 if ((lun != NULL) 13482 && (lun->delay_info.done_delay > 0)) { 13483 13484 callout_init(&io->io_hdr.delay_callout, /*mpsafe*/ 1); 13485 io->io_hdr.flags |= CTL_FLAG_DELAY_DONE; 13486 callout_reset(&io->io_hdr.delay_callout, 13487 lun->delay_info.done_delay * hz, 13488 ctl_done_timer_wakeup, io); 13489 if (lun->delay_info.done_type == CTL_DELAY_TYPE_ONESHOT) 13490 lun->delay_info.done_delay = 0; 13491 return; 13492 } 13493 } 13494#endif /* CTL_IO_DELAY */ 13495 13496 ctl_enqueue_done(io); 13497} 13498 13499static void 13500ctl_work_thread(void *arg) 13501{ 13502 struct ctl_thread *thr = (struct ctl_thread *)arg; 13503 struct ctl_softc *softc = thr->ctl_softc; 13504 union ctl_io *io; 13505 int retval; 13506 13507 CTL_DEBUG_PRINT(("ctl_work_thread starting\n")); 13508 13509 for (;;) { 13510 retval = 0; 13511 13512 /* 13513 * We handle the queues in this order: 13514 * - ISC 13515 * - done queue (to free up resources, unblock other commands) 13516 * - RtR queue 13517 * - incoming queue 13518 * 13519 * If those queues are empty, we break out of the loop and 13520 * go to sleep. 13521 */ 13522 mtx_lock(&thr->queue_lock); 13523 io = (union ctl_io *)STAILQ_FIRST(&thr->isc_queue); 13524 if (io != NULL) { 13525 STAILQ_REMOVE_HEAD(&thr->isc_queue, links); 13526 mtx_unlock(&thr->queue_lock); 13527 ctl_handle_isc(io); 13528 continue; 13529 } 13530 io = (union ctl_io *)STAILQ_FIRST(&thr->done_queue); 13531 if (io != NULL) { 13532 STAILQ_REMOVE_HEAD(&thr->done_queue, links); 13533 /* clear any blocked commands, call fe_done */ 13534 mtx_unlock(&thr->queue_lock); 13535 retval = ctl_process_done(io); 13536 continue; 13537 } 13538 io = (union ctl_io *)STAILQ_FIRST(&thr->incoming_queue); 13539 if (io != NULL) { 13540 STAILQ_REMOVE_HEAD(&thr->incoming_queue, links); 13541 mtx_unlock(&thr->queue_lock); 13542 if (io->io_hdr.io_type == CTL_IO_TASK) 13543 ctl_run_task(io); 13544 else 13545 ctl_scsiio_precheck(softc, &io->scsiio); 13546 continue; 13547 } 13548 io = (union ctl_io *)STAILQ_FIRST(&thr->rtr_queue); 13549 if (io != NULL) { 13550 STAILQ_REMOVE_HEAD(&thr->rtr_queue, links); 13551 mtx_unlock(&thr->queue_lock); 13552 retval = ctl_scsiio(&io->scsiio); 13553 if (retval != CTL_RETVAL_COMPLETE) 13554 CTL_DEBUG_PRINT(("ctl_scsiio failed\n")); 13555 continue; 13556 } 13557 13558 /* Sleep until we have something to do. */ 13559 mtx_sleep(thr, &thr->queue_lock, PDROP | PRIBIO, "-", 0); 13560 } 13561} 13562 13563static void 13564ctl_lun_thread(void *arg) 13565{ 13566 struct ctl_softc *softc = (struct ctl_softc *)arg; 13567 struct ctl_be_lun *be_lun; 13568 int retval; 13569 13570 CTL_DEBUG_PRINT(("ctl_lun_thread starting\n")); 13571 13572 for (;;) { 13573 retval = 0; 13574 mtx_lock(&softc->ctl_lock); 13575 be_lun = STAILQ_FIRST(&softc->pending_lun_queue); 13576 if (be_lun != NULL) { 13577 STAILQ_REMOVE_HEAD(&softc->pending_lun_queue, links); 13578 mtx_unlock(&softc->ctl_lock); 13579 ctl_create_lun(be_lun); 13580 continue; 13581 } 13582 13583 /* Sleep until we have something to do. */ 13584 mtx_sleep(&softc->pending_lun_queue, &softc->ctl_lock, 13585 PDROP | PRIBIO, "-", 0); 13586 } 13587} 13588 13589static void 13590ctl_thresh_thread(void *arg) 13591{ 13592 struct ctl_softc *softc = (struct ctl_softc *)arg; 13593 struct ctl_lun *lun; 13594 struct ctl_be_lun *be_lun; 13595 struct scsi_da_rw_recovery_page *rwpage; 13596 struct ctl_logical_block_provisioning_page *page; 13597 const char *attr; 13598 union ctl_ha_msg msg; 13599 uint64_t thres, val; 13600 int i, e, set; 13601 13602 CTL_DEBUG_PRINT(("ctl_thresh_thread starting\n")); 13603 13604 for (;;) { 13605 mtx_lock(&softc->ctl_lock); 13606 STAILQ_FOREACH(lun, &softc->lun_list, links) { 13607 be_lun = lun->be_lun; 13608 if ((lun->flags & CTL_LUN_DISABLED) || 13609 (lun->flags & CTL_LUN_OFFLINE) || 13610 lun->backend->lun_attr == NULL) 13611 continue; 13612 if ((lun->flags & CTL_LUN_PRIMARY_SC) == 0 && 13613 softc->ha_mode == CTL_HA_MODE_XFER) 13614 continue; 13615 rwpage = &lun->mode_pages.rw_er_page[CTL_PAGE_CURRENT]; 13616 if ((rwpage->byte8 & SMS_RWER_LBPERE) == 0) 13617 continue; 13618 e = 0; 13619 page = &lun->mode_pages.lbp_page[CTL_PAGE_CURRENT]; 13620 for (i = 0; i < CTL_NUM_LBP_THRESH; i++) { 13621 if ((page->descr[i].flags & SLBPPD_ENABLED) == 0) 13622 continue; 13623 thres = scsi_4btoul(page->descr[i].count); 13624 thres <<= CTL_LBP_EXPONENT; 13625 switch (page->descr[i].resource) { 13626 case 0x01: 13627 attr = "blocksavail"; 13628 break; 13629 case 0x02: 13630 attr = "blocksused"; 13631 break; 13632 case 0xf1: 13633 attr = "poolblocksavail"; 13634 break; 13635 case 0xf2: 13636 attr = "poolblocksused"; 13637 break; 13638 default: 13639 continue; 13640 } 13641 mtx_unlock(&softc->ctl_lock); // XXX 13642 val = lun->backend->lun_attr( 13643 lun->be_lun->be_lun, attr); 13644 mtx_lock(&softc->ctl_lock); 13645 if (val == UINT64_MAX) 13646 continue; 13647 if ((page->descr[i].flags & SLBPPD_ARMING_MASK) 13648 == SLBPPD_ARMING_INC) 13649 e = (val >= thres); 13650 else 13651 e = (val <= thres); 13652 if (e) 13653 break; 13654 } 13655 mtx_lock(&lun->lun_lock); 13656 if (e) { 13657 scsi_u64to8b((uint8_t *)&page->descr[i] - 13658 (uint8_t *)page, lun->ua_tpt_info); 13659 if (lun->lasttpt == 0 || 13660 time_uptime - lun->lasttpt >= CTL_LBP_UA_PERIOD) { 13661 lun->lasttpt = time_uptime; 13662 ctl_est_ua_all(lun, -1, CTL_UA_THIN_PROV_THRES); 13663 set = 1; 13664 } else 13665 set = 0; 13666 } else { 13667 lun->lasttpt = 0; 13668 ctl_clr_ua_all(lun, -1, CTL_UA_THIN_PROV_THRES); 13669 set = -1; 13670 } 13671 mtx_unlock(&lun->lun_lock); 13672 if (set != 0 && 13673 lun->ctl_softc->ha_mode == CTL_HA_MODE_XFER) { 13674 /* Send msg to other side. */ 13675 bzero(&msg.ua, sizeof(msg.ua)); 13676 msg.hdr.msg_type = CTL_MSG_UA; 13677 msg.hdr.nexus.initid = -1; 13678 msg.hdr.nexus.targ_port = -1; 13679 msg.hdr.nexus.targ_lun = lun->lun; 13680 msg.hdr.nexus.targ_mapped_lun = lun->lun; 13681 msg.ua.ua_all = 1; 13682 msg.ua.ua_set = (set > 0); 13683 msg.ua.ua_type = CTL_UA_THIN_PROV_THRES; 13684 memcpy(msg.ua.ua_info, lun->ua_tpt_info, 8); 13685 mtx_unlock(&softc->ctl_lock); // XXX 13686 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, 13687 sizeof(msg.ua), M_WAITOK); 13688 mtx_lock(&softc->ctl_lock); 13689 } 13690 } 13691 mtx_unlock(&softc->ctl_lock); 13692 pause("-", CTL_LBP_PERIOD * hz); 13693 } 13694} 13695 13696static void 13697ctl_enqueue_incoming(union ctl_io *io) 13698{ 13699 struct ctl_softc *softc = control_softc; 13700 struct ctl_thread *thr; 13701 u_int idx; 13702 13703 idx = (io->io_hdr.nexus.targ_port * 127 + 13704 io->io_hdr.nexus.initid) % worker_threads; 13705 thr = &softc->threads[idx]; 13706 mtx_lock(&thr->queue_lock); 13707 STAILQ_INSERT_TAIL(&thr->incoming_queue, &io->io_hdr, links); 13708 mtx_unlock(&thr->queue_lock); 13709 wakeup(thr); 13710} 13711 13712static void 13713ctl_enqueue_rtr(union ctl_io *io) 13714{ 13715 struct ctl_softc *softc = control_softc; 13716 struct ctl_thread *thr; 13717 13718 thr = &softc->threads[io->io_hdr.nexus.targ_mapped_lun % worker_threads]; 13719 mtx_lock(&thr->queue_lock); 13720 STAILQ_INSERT_TAIL(&thr->rtr_queue, &io->io_hdr, links); 13721 mtx_unlock(&thr->queue_lock); 13722 wakeup(thr); 13723} 13724 13725static void 13726ctl_enqueue_done(union ctl_io *io) 13727{ 13728 struct ctl_softc *softc = control_softc; 13729 struct ctl_thread *thr; 13730 13731 thr = &softc->threads[io->io_hdr.nexus.targ_mapped_lun % worker_threads]; 13732 mtx_lock(&thr->queue_lock); 13733 STAILQ_INSERT_TAIL(&thr->done_queue, &io->io_hdr, links); 13734 mtx_unlock(&thr->queue_lock); 13735 wakeup(thr); 13736} 13737 13738static void 13739ctl_enqueue_isc(union ctl_io *io) 13740{ 13741 struct ctl_softc *softc = control_softc; 13742 struct ctl_thread *thr; 13743 13744 thr = &softc->threads[io->io_hdr.nexus.targ_mapped_lun % worker_threads]; 13745 mtx_lock(&thr->queue_lock); 13746 STAILQ_INSERT_TAIL(&thr->isc_queue, &io->io_hdr, links); 13747 mtx_unlock(&thr->queue_lock); 13748 wakeup(thr); 13749} 13750 13751/* 13752 * vim: ts=8 13753 */ 13754