ctl.c revision 284158
1/*- 2 * Copyright (c) 2003-2009 Silicon Graphics International Corp. 3 * Copyright (c) 2012 The FreeBSD Foundation 4 * All rights reserved. 5 * 6 * Portions of this software were developed by Edward Tomasz Napierala 7 * under sponsorship from the FreeBSD Foundation. 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions, and the following disclaimer, 14 * without modification. 15 * 2. Redistributions in binary form must reproduce at minimum a disclaimer 16 * substantially similar to the "NO WARRANTY" disclaimer below 17 * ("Disclaimer") and any redistribution must be conditioned upon 18 * including a substantially similar Disclaimer requirement for further 19 * binary redistribution. 20 * 21 * NO WARRANTY 22 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 23 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 24 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR 25 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 26 * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 30 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 31 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 32 * POSSIBILITY OF SUCH DAMAGES. 33 * 34 * $Id$ 35 */ 36/* 37 * CAM Target Layer, a SCSI device emulation subsystem. 38 * 39 * Author: Ken Merry <ken@FreeBSD.org> 40 */ 41 42#define _CTL_C 43 44#include <sys/cdefs.h> 45__FBSDID("$FreeBSD: stable/10/sys/cam/ctl/ctl.c 284158 2015-06-08 16:24:43Z mav $"); 46 47#include <sys/param.h> 48#include <sys/systm.h> 49#include <sys/ctype.h> 50#include <sys/kernel.h> 51#include <sys/types.h> 52#include <sys/kthread.h> 53#include <sys/bio.h> 54#include <sys/fcntl.h> 55#include <sys/lock.h> 56#include <sys/module.h> 57#include <sys/mutex.h> 58#include <sys/condvar.h> 59#include <sys/malloc.h> 60#include <sys/conf.h> 61#include <sys/ioccom.h> 62#include <sys/queue.h> 63#include <sys/sbuf.h> 64#include <sys/smp.h> 65#include <sys/endian.h> 66#include <sys/sysctl.h> 67#include <vm/uma.h> 68 69#include <cam/cam.h> 70#include <cam/scsi/scsi_all.h> 71#include <cam/scsi/scsi_da.h> 72#include <cam/ctl/ctl_io.h> 73#include <cam/ctl/ctl.h> 74#include <cam/ctl/ctl_frontend.h> 75#include <cam/ctl/ctl_frontend_internal.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 * Size and alignment macros needed for Copan-specific HA hardware. These 89 * can go away when the HA code is re-written, and uses busdma for any 90 * hardware. 91 */ 92#define CTL_ALIGN_8B(target, source, type) \ 93 if (((uint32_t)source & 0x7) != 0) \ 94 target = (type)(source + (0x8 - ((uint32_t)source & 0x7)));\ 95 else \ 96 target = (type)source; 97 98#define CTL_SIZE_8B(target, size) \ 99 if ((size & 0x7) != 0) \ 100 target = size + (0x8 - (size & 0x7)); \ 101 else \ 102 target = size; 103 104#define CTL_ALIGN_8B_MARGIN 16 105 106/* 107 * Template mode pages. 108 */ 109 110/* 111 * Note that these are default values only. The actual values will be 112 * filled in when the user does a mode sense. 113 */ 114const static struct copan_debugconf_subpage debugconf_page_default = { 115 DBGCNF_PAGE_CODE | SMPH_SPF, /* page_code */ 116 DBGCNF_SUBPAGE_CODE, /* subpage */ 117 {(sizeof(struct copan_debugconf_subpage) - 4) >> 8, 118 (sizeof(struct copan_debugconf_subpage) - 4) >> 0}, /* page_length */ 119 DBGCNF_VERSION, /* page_version */ 120 {CTL_TIME_IO_DEFAULT_SECS>>8, 121 CTL_TIME_IO_DEFAULT_SECS>>0}, /* ctl_time_io_secs */ 122}; 123 124const static struct copan_debugconf_subpage debugconf_page_changeable = { 125 DBGCNF_PAGE_CODE | SMPH_SPF, /* page_code */ 126 DBGCNF_SUBPAGE_CODE, /* subpage */ 127 {(sizeof(struct copan_debugconf_subpage) - 4) >> 8, 128 (sizeof(struct copan_debugconf_subpage) - 4) >> 0}, /* page_length */ 129 0, /* page_version */ 130 {0xff,0xff}, /* ctl_time_io_secs */ 131}; 132 133const static struct scsi_da_rw_recovery_page rw_er_page_default = { 134 /*page_code*/SMS_RW_ERROR_RECOVERY_PAGE, 135 /*page_length*/sizeof(struct scsi_da_rw_recovery_page) - 2, 136 /*byte3*/SMS_RWER_AWRE|SMS_RWER_ARRE, 137 /*read_retry_count*/0, 138 /*correction_span*/0, 139 /*head_offset_count*/0, 140 /*data_strobe_offset_cnt*/0, 141 /*byte8*/SMS_RWER_LBPERE, 142 /*write_retry_count*/0, 143 /*reserved2*/0, 144 /*recovery_time_limit*/{0, 0}, 145}; 146 147const static struct scsi_da_rw_recovery_page rw_er_page_changeable = { 148 /*page_code*/SMS_RW_ERROR_RECOVERY_PAGE, 149 /*page_length*/sizeof(struct scsi_da_rw_recovery_page) - 2, 150 /*byte3*/0, 151 /*read_retry_count*/0, 152 /*correction_span*/0, 153 /*head_offset_count*/0, 154 /*data_strobe_offset_cnt*/0, 155 /*byte8*/0, 156 /*write_retry_count*/0, 157 /*reserved2*/0, 158 /*recovery_time_limit*/{0, 0}, 159}; 160 161const static struct scsi_format_page format_page_default = { 162 /*page_code*/SMS_FORMAT_DEVICE_PAGE, 163 /*page_length*/sizeof(struct scsi_format_page) - 2, 164 /*tracks_per_zone*/ {0, 0}, 165 /*alt_sectors_per_zone*/ {0, 0}, 166 /*alt_tracks_per_zone*/ {0, 0}, 167 /*alt_tracks_per_lun*/ {0, 0}, 168 /*sectors_per_track*/ {(CTL_DEFAULT_SECTORS_PER_TRACK >> 8) & 0xff, 169 CTL_DEFAULT_SECTORS_PER_TRACK & 0xff}, 170 /*bytes_per_sector*/ {0, 0}, 171 /*interleave*/ {0, 0}, 172 /*track_skew*/ {0, 0}, 173 /*cylinder_skew*/ {0, 0}, 174 /*flags*/ SFP_HSEC, 175 /*reserved*/ {0, 0, 0} 176}; 177 178const static struct scsi_format_page format_page_changeable = { 179 /*page_code*/SMS_FORMAT_DEVICE_PAGE, 180 /*page_length*/sizeof(struct scsi_format_page) - 2, 181 /*tracks_per_zone*/ {0, 0}, 182 /*alt_sectors_per_zone*/ {0, 0}, 183 /*alt_tracks_per_zone*/ {0, 0}, 184 /*alt_tracks_per_lun*/ {0, 0}, 185 /*sectors_per_track*/ {0, 0}, 186 /*bytes_per_sector*/ {0, 0}, 187 /*interleave*/ {0, 0}, 188 /*track_skew*/ {0, 0}, 189 /*cylinder_skew*/ {0, 0}, 190 /*flags*/ 0, 191 /*reserved*/ {0, 0, 0} 192}; 193 194const static struct scsi_rigid_disk_page rigid_disk_page_default = { 195 /*page_code*/SMS_RIGID_DISK_PAGE, 196 /*page_length*/sizeof(struct scsi_rigid_disk_page) - 2, 197 /*cylinders*/ {0, 0, 0}, 198 /*heads*/ CTL_DEFAULT_HEADS, 199 /*start_write_precomp*/ {0, 0, 0}, 200 /*start_reduced_current*/ {0, 0, 0}, 201 /*step_rate*/ {0, 0}, 202 /*landing_zone_cylinder*/ {0, 0, 0}, 203 /*rpl*/ SRDP_RPL_DISABLED, 204 /*rotational_offset*/ 0, 205 /*reserved1*/ 0, 206 /*rotation_rate*/ {(CTL_DEFAULT_ROTATION_RATE >> 8) & 0xff, 207 CTL_DEFAULT_ROTATION_RATE & 0xff}, 208 /*reserved2*/ {0, 0} 209}; 210 211const static struct scsi_rigid_disk_page rigid_disk_page_changeable = { 212 /*page_code*/SMS_RIGID_DISK_PAGE, 213 /*page_length*/sizeof(struct scsi_rigid_disk_page) - 2, 214 /*cylinders*/ {0, 0, 0}, 215 /*heads*/ 0, 216 /*start_write_precomp*/ {0, 0, 0}, 217 /*start_reduced_current*/ {0, 0, 0}, 218 /*step_rate*/ {0, 0}, 219 /*landing_zone_cylinder*/ {0, 0, 0}, 220 /*rpl*/ 0, 221 /*rotational_offset*/ 0, 222 /*reserved1*/ 0, 223 /*rotation_rate*/ {0, 0}, 224 /*reserved2*/ {0, 0} 225}; 226 227const static struct scsi_caching_page caching_page_default = { 228 /*page_code*/SMS_CACHING_PAGE, 229 /*page_length*/sizeof(struct scsi_caching_page) - 2, 230 /*flags1*/ SCP_DISC | SCP_WCE, 231 /*ret_priority*/ 0, 232 /*disable_pf_transfer_len*/ {0xff, 0xff}, 233 /*min_prefetch*/ {0, 0}, 234 /*max_prefetch*/ {0xff, 0xff}, 235 /*max_pf_ceiling*/ {0xff, 0xff}, 236 /*flags2*/ 0, 237 /*cache_segments*/ 0, 238 /*cache_seg_size*/ {0, 0}, 239 /*reserved*/ 0, 240 /*non_cache_seg_size*/ {0, 0, 0} 241}; 242 243const static struct scsi_caching_page caching_page_changeable = { 244 /*page_code*/SMS_CACHING_PAGE, 245 /*page_length*/sizeof(struct scsi_caching_page) - 2, 246 /*flags1*/ SCP_WCE | SCP_RCD, 247 /*ret_priority*/ 0, 248 /*disable_pf_transfer_len*/ {0, 0}, 249 /*min_prefetch*/ {0, 0}, 250 /*max_prefetch*/ {0, 0}, 251 /*max_pf_ceiling*/ {0, 0}, 252 /*flags2*/ 0, 253 /*cache_segments*/ 0, 254 /*cache_seg_size*/ {0, 0}, 255 /*reserved*/ 0, 256 /*non_cache_seg_size*/ {0, 0, 0} 257}; 258 259const static struct scsi_control_page control_page_default = { 260 /*page_code*/SMS_CONTROL_MODE_PAGE, 261 /*page_length*/sizeof(struct scsi_control_page) - 2, 262 /*rlec*/0, 263 /*queue_flags*/SCP_QUEUE_ALG_RESTRICTED, 264 /*eca_and_aen*/0, 265 /*flags4*/SCP_TAS, 266 /*aen_holdoff_period*/{0, 0}, 267 /*busy_timeout_period*/{0, 0}, 268 /*extended_selftest_completion_time*/{0, 0} 269}; 270 271const static struct scsi_control_page control_page_changeable = { 272 /*page_code*/SMS_CONTROL_MODE_PAGE, 273 /*page_length*/sizeof(struct scsi_control_page) - 2, 274 /*rlec*/SCP_DSENSE, 275 /*queue_flags*/SCP_QUEUE_ALG_MASK, 276 /*eca_and_aen*/SCP_SWP, 277 /*flags4*/0, 278 /*aen_holdoff_period*/{0, 0}, 279 /*busy_timeout_period*/{0, 0}, 280 /*extended_selftest_completion_time*/{0, 0} 281}; 282 283const static struct scsi_info_exceptions_page ie_page_default = { 284 /*page_code*/SMS_INFO_EXCEPTIONS_PAGE, 285 /*page_length*/sizeof(struct scsi_info_exceptions_page) - 2, 286 /*info_flags*/SIEP_FLAGS_DEXCPT, 287 /*mrie*/0, 288 /*interval_timer*/{0, 0, 0, 0}, 289 /*report_count*/{0, 0, 0, 0} 290}; 291 292const static struct scsi_info_exceptions_page ie_page_changeable = { 293 /*page_code*/SMS_INFO_EXCEPTIONS_PAGE, 294 /*page_length*/sizeof(struct scsi_info_exceptions_page) - 2, 295 /*info_flags*/0, 296 /*mrie*/0, 297 /*interval_timer*/{0, 0, 0, 0}, 298 /*report_count*/{0, 0, 0, 0} 299}; 300 301#define CTL_LBPM_LEN (sizeof(struct ctl_logical_block_provisioning_page) - 4) 302 303const static struct ctl_logical_block_provisioning_page lbp_page_default = {{ 304 /*page_code*/SMS_INFO_EXCEPTIONS_PAGE | SMPH_SPF, 305 /*subpage_code*/0x02, 306 /*page_length*/{CTL_LBPM_LEN >> 8, CTL_LBPM_LEN}, 307 /*flags*/0, 308 /*reserved*/{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}, 309 /*descr*/{}}, 310 {{/*flags*/0, 311 /*resource*/0x01, 312 /*reserved*/{0, 0}, 313 /*count*/{0, 0, 0, 0}}, 314 {/*flags*/0, 315 /*resource*/0x02, 316 /*reserved*/{0, 0}, 317 /*count*/{0, 0, 0, 0}}, 318 {/*flags*/0, 319 /*resource*/0xf1, 320 /*reserved*/{0, 0}, 321 /*count*/{0, 0, 0, 0}}, 322 {/*flags*/0, 323 /*resource*/0xf2, 324 /*reserved*/{0, 0}, 325 /*count*/{0, 0, 0, 0}} 326 } 327}; 328 329const static struct ctl_logical_block_provisioning_page lbp_page_changeable = {{ 330 /*page_code*/SMS_INFO_EXCEPTIONS_PAGE | SMPH_SPF, 331 /*subpage_code*/0x02, 332 /*page_length*/{CTL_LBPM_LEN >> 8, CTL_LBPM_LEN}, 333 /*flags*/0, 334 /*reserved*/{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}, 335 /*descr*/{}}, 336 {{/*flags*/0, 337 /*resource*/0, 338 /*reserved*/{0, 0}, 339 /*count*/{0, 0, 0, 0}}, 340 {/*flags*/0, 341 /*resource*/0, 342 /*reserved*/{0, 0}, 343 /*count*/{0, 0, 0, 0}}, 344 {/*flags*/0, 345 /*resource*/0, 346 /*reserved*/{0, 0}, 347 /*count*/{0, 0, 0, 0}}, 348 {/*flags*/0, 349 /*resource*/0, 350 /*reserved*/{0, 0}, 351 /*count*/{0, 0, 0, 0}} 352 } 353}; 354 355/* 356 * XXX KDM move these into the softc. 357 */ 358static int rcv_sync_msg; 359static uint8_t ctl_pause_rtr; 360 361SYSCTL_NODE(_kern_cam, OID_AUTO, ctl, CTLFLAG_RD, 0, "CAM Target Layer"); 362static int worker_threads = -1; 363TUNABLE_INT("kern.cam.ctl.worker_threads", &worker_threads); 364SYSCTL_INT(_kern_cam_ctl, OID_AUTO, worker_threads, CTLFLAG_RDTUN, 365 &worker_threads, 1, "Number of worker threads"); 366static int ctl_debug = CTL_DEBUG_NONE; 367TUNABLE_INT("kern.cam.ctl.debug", &ctl_debug); 368SYSCTL_INT(_kern_cam_ctl, OID_AUTO, debug, CTLFLAG_RWTUN, 369 &ctl_debug, 0, "Enabled debug flags"); 370 371/* 372 * Supported pages (0x00), Serial number (0x80), Device ID (0x83), 373 * Extended INQUIRY Data (0x86), Mode Page Policy (0x87), 374 * SCSI Ports (0x88), Third-party Copy (0x8F), Block limits (0xB0), 375 * Block Device Characteristics (0xB1) and Logical Block Provisioning (0xB2) 376 */ 377#define SCSI_EVPD_NUM_SUPPORTED_PAGES 10 378 379static void ctl_isc_event_handler(ctl_ha_channel chanel, ctl_ha_event event, 380 int param); 381static void ctl_copy_sense_data(union ctl_ha_msg *src, union ctl_io *dest); 382static int ctl_init(void); 383void ctl_shutdown(void); 384static int ctl_open(struct cdev *dev, int flags, int fmt, struct thread *td); 385static int ctl_close(struct cdev *dev, int flags, int fmt, struct thread *td); 386static void ctl_ioctl_online(void *arg); 387static void ctl_ioctl_offline(void *arg); 388static int ctl_ioctl_lun_enable(void *arg, struct ctl_id targ_id, int lun_id); 389static int ctl_ioctl_lun_disable(void *arg, struct ctl_id targ_id, int lun_id); 390static int ctl_ioctl_do_datamove(struct ctl_scsiio *ctsio); 391static int ctl_serialize_other_sc_cmd(struct ctl_scsiio *ctsio); 392static int ctl_ioctl_submit_wait(union ctl_io *io); 393static void ctl_ioctl_datamove(union ctl_io *io); 394static void ctl_ioctl_done(union ctl_io *io); 395static void ctl_ioctl_hard_startstop_callback(void *arg, 396 struct cfi_metatask *metatask); 397static void ctl_ioctl_bbrread_callback(void *arg,struct cfi_metatask *metatask); 398static int ctl_ioctl_fill_ooa(struct ctl_lun *lun, uint32_t *cur_fill_num, 399 struct ctl_ooa *ooa_hdr, 400 struct ctl_ooa_entry *kern_entries); 401static int ctl_ioctl(struct cdev *dev, u_long cmd, caddr_t addr, int flag, 402 struct thread *td); 403static int ctl_alloc_lun(struct ctl_softc *ctl_softc, struct ctl_lun *lun, 404 struct ctl_be_lun *be_lun, struct ctl_id target_id); 405static int ctl_free_lun(struct ctl_lun *lun); 406static void ctl_create_lun(struct ctl_be_lun *be_lun); 407static struct ctl_port * ctl_io_port(struct ctl_io_hdr *io_hdr); 408/** 409static void ctl_failover_change_pages(struct ctl_softc *softc, 410 struct ctl_scsiio *ctsio, int master); 411**/ 412 413static int ctl_do_mode_select(union ctl_io *io); 414static int ctl_pro_preempt(struct ctl_softc *softc, struct ctl_lun *lun, 415 uint64_t res_key, uint64_t sa_res_key, 416 uint8_t type, uint32_t residx, 417 struct ctl_scsiio *ctsio, 418 struct scsi_per_res_out *cdb, 419 struct scsi_per_res_out_parms* param); 420static void ctl_pro_preempt_other(struct ctl_lun *lun, 421 union ctl_ha_msg *msg); 422static void ctl_hndl_per_res_out_on_other_sc(union ctl_ha_msg *msg); 423static int ctl_inquiry_evpd_supported(struct ctl_scsiio *ctsio, int alloc_len); 424static int ctl_inquiry_evpd_serial(struct ctl_scsiio *ctsio, int alloc_len); 425static int ctl_inquiry_evpd_devid(struct ctl_scsiio *ctsio, int alloc_len); 426static int ctl_inquiry_evpd_eid(struct ctl_scsiio *ctsio, int alloc_len); 427static int ctl_inquiry_evpd_mpp(struct ctl_scsiio *ctsio, int alloc_len); 428static int ctl_inquiry_evpd_scsi_ports(struct ctl_scsiio *ctsio, 429 int alloc_len); 430static int ctl_inquiry_evpd_block_limits(struct ctl_scsiio *ctsio, 431 int alloc_len); 432static int ctl_inquiry_evpd_bdc(struct ctl_scsiio *ctsio, int alloc_len); 433static int ctl_inquiry_evpd_lbp(struct ctl_scsiio *ctsio, int alloc_len); 434static int ctl_inquiry_evpd(struct ctl_scsiio *ctsio); 435static int ctl_inquiry_std(struct ctl_scsiio *ctsio); 436static int ctl_get_lba_len(union ctl_io *io, uint64_t *lba, uint64_t *len); 437static ctl_action ctl_extent_check(union ctl_io *io1, union ctl_io *io2, 438 bool seq); 439static ctl_action ctl_extent_check_seq(union ctl_io *io1, union ctl_io *io2); 440static ctl_action ctl_check_for_blockage(struct ctl_lun *lun, 441 union ctl_io *pending_io, union ctl_io *ooa_io); 442static ctl_action ctl_check_ooa(struct ctl_lun *lun, union ctl_io *pending_io, 443 union ctl_io *starting_io); 444static int ctl_check_blocked(struct ctl_lun *lun); 445static int ctl_scsiio_lun_check(struct ctl_lun *lun, 446 const struct ctl_cmd_entry *entry, 447 struct ctl_scsiio *ctsio); 448//static int ctl_check_rtr(union ctl_io *pending_io, struct ctl_softc *softc); 449static void ctl_failover(void); 450static void ctl_clear_ua(struct ctl_softc *ctl_softc, uint32_t initidx, 451 ctl_ua_type ua_type); 452static int ctl_scsiio_precheck(struct ctl_softc *ctl_softc, 453 struct ctl_scsiio *ctsio); 454static int ctl_scsiio(struct ctl_scsiio *ctsio); 455 456static int ctl_bus_reset(struct ctl_softc *ctl_softc, union ctl_io *io); 457static int ctl_target_reset(struct ctl_softc *ctl_softc, union ctl_io *io, 458 ctl_ua_type ua_type); 459static int ctl_lun_reset(struct ctl_lun *lun, union ctl_io *io, 460 ctl_ua_type ua_type); 461static int ctl_abort_task(union ctl_io *io); 462static int ctl_abort_task_set(union ctl_io *io); 463static int ctl_i_t_nexus_reset(union ctl_io *io); 464static void ctl_run_task(union ctl_io *io); 465#ifdef CTL_IO_DELAY 466static void ctl_datamove_timer_wakeup(void *arg); 467static void ctl_done_timer_wakeup(void *arg); 468#endif /* CTL_IO_DELAY */ 469 470static void ctl_send_datamove_done(union ctl_io *io, int have_lock); 471static void ctl_datamove_remote_write_cb(struct ctl_ha_dt_req *rq); 472static int ctl_datamove_remote_dm_write_cb(union ctl_io *io); 473static void ctl_datamove_remote_write(union ctl_io *io); 474static int ctl_datamove_remote_dm_read_cb(union ctl_io *io); 475static void ctl_datamove_remote_read_cb(struct ctl_ha_dt_req *rq); 476static int ctl_datamove_remote_sgl_setup(union ctl_io *io); 477static int ctl_datamove_remote_xfer(union ctl_io *io, unsigned command, 478 ctl_ha_dt_cb callback); 479static void ctl_datamove_remote_read(union ctl_io *io); 480static void ctl_datamove_remote(union ctl_io *io); 481static int ctl_process_done(union ctl_io *io); 482static void ctl_lun_thread(void *arg); 483static void ctl_thresh_thread(void *arg); 484static void ctl_work_thread(void *arg); 485static void ctl_enqueue_incoming(union ctl_io *io); 486static void ctl_enqueue_rtr(union ctl_io *io); 487static void ctl_enqueue_done(union ctl_io *io); 488static void ctl_enqueue_isc(union ctl_io *io); 489static const struct ctl_cmd_entry * 490 ctl_get_cmd_entry(struct ctl_scsiio *ctsio, int *sa); 491static const struct ctl_cmd_entry * 492 ctl_validate_command(struct ctl_scsiio *ctsio); 493static int ctl_cmd_applicable(uint8_t lun_type, 494 const struct ctl_cmd_entry *entry); 495 496/* 497 * Load the serialization table. This isn't very pretty, but is probably 498 * the easiest way to do it. 499 */ 500#include "ctl_ser_table.c" 501 502/* 503 * We only need to define open, close and ioctl routines for this driver. 504 */ 505static struct cdevsw ctl_cdevsw = { 506 .d_version = D_VERSION, 507 .d_flags = 0, 508 .d_open = ctl_open, 509 .d_close = ctl_close, 510 .d_ioctl = ctl_ioctl, 511 .d_name = "ctl", 512}; 513 514 515MALLOC_DEFINE(M_CTL, "ctlmem", "Memory used for CTL"); 516MALLOC_DEFINE(M_CTLIO, "ctlio", "Memory used for CTL requests"); 517 518static int ctl_module_event_handler(module_t, int /*modeventtype_t*/, void *); 519 520static moduledata_t ctl_moduledata = { 521 "ctl", 522 ctl_module_event_handler, 523 NULL 524}; 525 526DECLARE_MODULE(ctl, ctl_moduledata, SI_SUB_CONFIGURE, SI_ORDER_THIRD); 527MODULE_VERSION(ctl, 1); 528 529static struct ctl_frontend ioctl_frontend = 530{ 531 .name = "ioctl", 532}; 533 534static void 535ctl_isc_handler_finish_xfer(struct ctl_softc *ctl_softc, 536 union ctl_ha_msg *msg_info) 537{ 538 struct ctl_scsiio *ctsio; 539 540 if (msg_info->hdr.original_sc == NULL) { 541 printf("%s: original_sc == NULL!\n", __func__); 542 /* XXX KDM now what? */ 543 return; 544 } 545 546 ctsio = &msg_info->hdr.original_sc->scsiio; 547 ctsio->io_hdr.flags |= CTL_FLAG_IO_ACTIVE; 548 ctsio->io_hdr.msg_type = CTL_MSG_FINISH_IO; 549 ctsio->io_hdr.status = msg_info->hdr.status; 550 ctsio->scsi_status = msg_info->scsi.scsi_status; 551 ctsio->sense_len = msg_info->scsi.sense_len; 552 ctsio->sense_residual = msg_info->scsi.sense_residual; 553 ctsio->residual = msg_info->scsi.residual; 554 memcpy(&ctsio->sense_data, &msg_info->scsi.sense_data, 555 sizeof(ctsio->sense_data)); 556 memcpy(&ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN].bytes, 557 &msg_info->scsi.lbalen, sizeof(msg_info->scsi.lbalen)); 558 ctl_enqueue_isc((union ctl_io *)ctsio); 559} 560 561static void 562ctl_isc_handler_finish_ser_only(struct ctl_softc *ctl_softc, 563 union ctl_ha_msg *msg_info) 564{ 565 struct ctl_scsiio *ctsio; 566 567 if (msg_info->hdr.serializing_sc == NULL) { 568 printf("%s: serializing_sc == NULL!\n", __func__); 569 /* XXX KDM now what? */ 570 return; 571 } 572 573 ctsio = &msg_info->hdr.serializing_sc->scsiio; 574#if 0 575 /* 576 * Attempt to catch the situation where an I/O has 577 * been freed, and we're using it again. 578 */ 579 if (ctsio->io_hdr.io_type == 0xff) { 580 union ctl_io *tmp_io; 581 tmp_io = (union ctl_io *)ctsio; 582 printf("%s: %p use after free!\n", __func__, 583 ctsio); 584 printf("%s: type %d msg %d cdb %x iptl: " 585 "%d:%d:%d:%d tag 0x%04x " 586 "flag %#x status %x\n", 587 __func__, 588 tmp_io->io_hdr.io_type, 589 tmp_io->io_hdr.msg_type, 590 tmp_io->scsiio.cdb[0], 591 tmp_io->io_hdr.nexus.initid.id, 592 tmp_io->io_hdr.nexus.targ_port, 593 tmp_io->io_hdr.nexus.targ_target.id, 594 tmp_io->io_hdr.nexus.targ_lun, 595 (tmp_io->io_hdr.io_type == 596 CTL_IO_TASK) ? 597 tmp_io->taskio.tag_num : 598 tmp_io->scsiio.tag_num, 599 tmp_io->io_hdr.flags, 600 tmp_io->io_hdr.status); 601 } 602#endif 603 ctsio->io_hdr.msg_type = CTL_MSG_FINISH_IO; 604 ctl_enqueue_isc((union ctl_io *)ctsio); 605} 606 607/* 608 * ISC (Inter Shelf Communication) event handler. Events from the HA 609 * subsystem come in here. 610 */ 611static void 612ctl_isc_event_handler(ctl_ha_channel channel, ctl_ha_event event, int param) 613{ 614 struct ctl_softc *softc; 615 union ctl_io *io; 616 struct ctl_prio *presio; 617 ctl_ha_status isc_status; 618 619 softc = control_softc; 620 io = NULL; 621 622 623#if 0 624 printf("CTL: Isc Msg event %d\n", event); 625#endif 626 if (event == CTL_HA_EVT_MSG_RECV) { 627 union ctl_ha_msg msg_info; 628 629 isc_status = ctl_ha_msg_recv(CTL_HA_CHAN_CTL, &msg_info, 630 sizeof(msg_info), /*wait*/ 0); 631#if 0 632 printf("CTL: msg_type %d\n", msg_info.msg_type); 633#endif 634 if (isc_status != 0) { 635 printf("Error receiving message, status = %d\n", 636 isc_status); 637 return; 638 } 639 640 switch (msg_info.hdr.msg_type) { 641 case CTL_MSG_SERIALIZE: 642#if 0 643 printf("Serialize\n"); 644#endif 645 io = ctl_alloc_io_nowait(softc->othersc_pool); 646 if (io == NULL) { 647 printf("ctl_isc_event_handler: can't allocate " 648 "ctl_io!\n"); 649 /* Bad Juju */ 650 /* Need to set busy and send msg back */ 651 msg_info.hdr.msg_type = CTL_MSG_BAD_JUJU; 652 msg_info.hdr.status = CTL_SCSI_ERROR; 653 msg_info.scsi.scsi_status = SCSI_STATUS_BUSY; 654 msg_info.scsi.sense_len = 0; 655 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 656 sizeof(msg_info), 0) > CTL_HA_STATUS_SUCCESS){ 657 } 658 goto bailout; 659 } 660 ctl_zero_io(io); 661 // populate ctsio from msg_info 662 io->io_hdr.io_type = CTL_IO_SCSI; 663 io->io_hdr.msg_type = CTL_MSG_SERIALIZE; 664 io->io_hdr.original_sc = msg_info.hdr.original_sc; 665#if 0 666 printf("pOrig %x\n", (int)msg_info.original_sc); 667#endif 668 io->io_hdr.flags |= CTL_FLAG_FROM_OTHER_SC | 669 CTL_FLAG_IO_ACTIVE; 670 /* 671 * If we're in serialization-only mode, we don't 672 * want to go through full done processing. Thus 673 * the COPY flag. 674 * 675 * XXX KDM add another flag that is more specific. 676 */ 677 if (softc->ha_mode == CTL_HA_MODE_SER_ONLY) 678 io->io_hdr.flags |= CTL_FLAG_INT_COPY; 679 io->io_hdr.nexus = msg_info.hdr.nexus; 680#if 0 681 printf("targ %d, port %d, iid %d, lun %d\n", 682 io->io_hdr.nexus.targ_target.id, 683 io->io_hdr.nexus.targ_port, 684 io->io_hdr.nexus.initid.id, 685 io->io_hdr.nexus.targ_lun); 686#endif 687 io->scsiio.tag_num = msg_info.scsi.tag_num; 688 io->scsiio.tag_type = msg_info.scsi.tag_type; 689 memcpy(io->scsiio.cdb, msg_info.scsi.cdb, 690 CTL_MAX_CDBLEN); 691 if (softc->ha_mode == CTL_HA_MODE_XFER) { 692 const struct ctl_cmd_entry *entry; 693 694 entry = ctl_get_cmd_entry(&io->scsiio, NULL); 695 io->io_hdr.flags &= ~CTL_FLAG_DATA_MASK; 696 io->io_hdr.flags |= 697 entry->flags & CTL_FLAG_DATA_MASK; 698 } 699 ctl_enqueue_isc(io); 700 break; 701 702 /* Performed on the Originating SC, XFER mode only */ 703 case CTL_MSG_DATAMOVE: { 704 struct ctl_sg_entry *sgl; 705 int i, j; 706 707 io = msg_info.hdr.original_sc; 708 if (io == NULL) { 709 printf("%s: original_sc == NULL!\n", __func__); 710 /* XXX KDM do something here */ 711 break; 712 } 713 io->io_hdr.msg_type = CTL_MSG_DATAMOVE; 714 io->io_hdr.flags |= CTL_FLAG_IO_ACTIVE; 715 /* 716 * Keep track of this, we need to send it back over 717 * when the datamove is complete. 718 */ 719 io->io_hdr.serializing_sc = msg_info.hdr.serializing_sc; 720 721 if (msg_info.dt.sg_sequence == 0) { 722 /* 723 * XXX KDM we use the preallocated S/G list 724 * here, but we'll need to change this to 725 * dynamic allocation if we need larger S/G 726 * lists. 727 */ 728 if (msg_info.dt.kern_sg_entries > 729 sizeof(io->io_hdr.remote_sglist) / 730 sizeof(io->io_hdr.remote_sglist[0])) { 731 printf("%s: number of S/G entries " 732 "needed %u > allocated num %zd\n", 733 __func__, 734 msg_info.dt.kern_sg_entries, 735 sizeof(io->io_hdr.remote_sglist)/ 736 sizeof(io->io_hdr.remote_sglist[0])); 737 738 /* 739 * XXX KDM send a message back to 740 * the other side to shut down the 741 * DMA. The error will come back 742 * through via the normal channel. 743 */ 744 break; 745 } 746 sgl = io->io_hdr.remote_sglist; 747 memset(sgl, 0, 748 sizeof(io->io_hdr.remote_sglist)); 749 750 io->scsiio.kern_data_ptr = (uint8_t *)sgl; 751 752 io->scsiio.kern_sg_entries = 753 msg_info.dt.kern_sg_entries; 754 io->scsiio.rem_sg_entries = 755 msg_info.dt.kern_sg_entries; 756 io->scsiio.kern_data_len = 757 msg_info.dt.kern_data_len; 758 io->scsiio.kern_total_len = 759 msg_info.dt.kern_total_len; 760 io->scsiio.kern_data_resid = 761 msg_info.dt.kern_data_resid; 762 io->scsiio.kern_rel_offset = 763 msg_info.dt.kern_rel_offset; 764 /* 765 * Clear out per-DMA flags. 766 */ 767 io->io_hdr.flags &= ~CTL_FLAG_RDMA_MASK; 768 /* 769 * Add per-DMA flags that are set for this 770 * particular DMA request. 771 */ 772 io->io_hdr.flags |= msg_info.dt.flags & 773 CTL_FLAG_RDMA_MASK; 774 } else 775 sgl = (struct ctl_sg_entry *) 776 io->scsiio.kern_data_ptr; 777 778 for (i = msg_info.dt.sent_sg_entries, j = 0; 779 i < (msg_info.dt.sent_sg_entries + 780 msg_info.dt.cur_sg_entries); i++, j++) { 781 sgl[i].addr = msg_info.dt.sg_list[j].addr; 782 sgl[i].len = msg_info.dt.sg_list[j].len; 783 784#if 0 785 printf("%s: L: %p,%d -> %p,%d j=%d, i=%d\n", 786 __func__, 787 msg_info.dt.sg_list[j].addr, 788 msg_info.dt.sg_list[j].len, 789 sgl[i].addr, sgl[i].len, j, i); 790#endif 791 } 792#if 0 793 memcpy(&sgl[msg_info.dt.sent_sg_entries], 794 msg_info.dt.sg_list, 795 sizeof(*sgl) * msg_info.dt.cur_sg_entries); 796#endif 797 798 /* 799 * If this is the last piece of the I/O, we've got 800 * the full S/G list. Queue processing in the thread. 801 * Otherwise wait for the next piece. 802 */ 803 if (msg_info.dt.sg_last != 0) 804 ctl_enqueue_isc(io); 805 break; 806 } 807 /* Performed on the Serializing (primary) SC, XFER mode only */ 808 case CTL_MSG_DATAMOVE_DONE: { 809 if (msg_info.hdr.serializing_sc == NULL) { 810 printf("%s: serializing_sc == NULL!\n", 811 __func__); 812 /* XXX KDM now what? */ 813 break; 814 } 815 /* 816 * We grab the sense information here in case 817 * there was a failure, so we can return status 818 * back to the initiator. 819 */ 820 io = msg_info.hdr.serializing_sc; 821 io->io_hdr.msg_type = CTL_MSG_DATAMOVE_DONE; 822 io->io_hdr.status = msg_info.hdr.status; 823 io->scsiio.scsi_status = msg_info.scsi.scsi_status; 824 io->scsiio.sense_len = msg_info.scsi.sense_len; 825 io->scsiio.sense_residual =msg_info.scsi.sense_residual; 826 io->io_hdr.port_status = msg_info.scsi.fetd_status; 827 io->scsiio.residual = msg_info.scsi.residual; 828 memcpy(&io->scsiio.sense_data,&msg_info.scsi.sense_data, 829 sizeof(io->scsiio.sense_data)); 830 ctl_enqueue_isc(io); 831 break; 832 } 833 834 /* Preformed on Originating SC, SER_ONLY mode */ 835 case CTL_MSG_R2R: 836 io = msg_info.hdr.original_sc; 837 if (io == NULL) { 838 printf("%s: Major Bummer\n", __func__); 839 return; 840 } else { 841#if 0 842 printf("pOrig %x\n",(int) ctsio); 843#endif 844 } 845 io->io_hdr.msg_type = CTL_MSG_R2R; 846 io->io_hdr.serializing_sc = msg_info.hdr.serializing_sc; 847 ctl_enqueue_isc(io); 848 break; 849 850 /* 851 * Performed on Serializing(i.e. primary SC) SC in SER_ONLY 852 * mode. 853 * Performed on the Originating (i.e. secondary) SC in XFER 854 * mode 855 */ 856 case CTL_MSG_FINISH_IO: 857 if (softc->ha_mode == CTL_HA_MODE_XFER) 858 ctl_isc_handler_finish_xfer(softc, 859 &msg_info); 860 else 861 ctl_isc_handler_finish_ser_only(softc, 862 &msg_info); 863 break; 864 865 /* Preformed on Originating SC */ 866 case CTL_MSG_BAD_JUJU: 867 io = msg_info.hdr.original_sc; 868 if (io == NULL) { 869 printf("%s: Bad JUJU!, original_sc is NULL!\n", 870 __func__); 871 break; 872 } 873 ctl_copy_sense_data(&msg_info, io); 874 /* 875 * IO should have already been cleaned up on other 876 * SC so clear this flag so we won't send a message 877 * back to finish the IO there. 878 */ 879 io->io_hdr.flags &= ~CTL_FLAG_SENT_2OTHER_SC; 880 io->io_hdr.flags |= CTL_FLAG_IO_ACTIVE; 881 882 /* io = msg_info.hdr.serializing_sc; */ 883 io->io_hdr.msg_type = CTL_MSG_BAD_JUJU; 884 ctl_enqueue_isc(io); 885 break; 886 887 /* Handle resets sent from the other side */ 888 case CTL_MSG_MANAGE_TASKS: { 889 struct ctl_taskio *taskio; 890 taskio = (struct ctl_taskio *)ctl_alloc_io_nowait( 891 softc->othersc_pool); 892 if (taskio == NULL) { 893 printf("ctl_isc_event_handler: can't allocate " 894 "ctl_io!\n"); 895 /* Bad Juju */ 896 /* should I just call the proper reset func 897 here??? */ 898 goto bailout; 899 } 900 ctl_zero_io((union ctl_io *)taskio); 901 taskio->io_hdr.io_type = CTL_IO_TASK; 902 taskio->io_hdr.flags |= CTL_FLAG_FROM_OTHER_SC; 903 taskio->io_hdr.nexus = msg_info.hdr.nexus; 904 taskio->task_action = msg_info.task.task_action; 905 taskio->tag_num = msg_info.task.tag_num; 906 taskio->tag_type = msg_info.task.tag_type; 907#ifdef CTL_TIME_IO 908 taskio->io_hdr.start_time = time_uptime; 909 getbintime(&taskio->io_hdr.start_bt); 910#if 0 911 cs_prof_gettime(&taskio->io_hdr.start_ticks); 912#endif 913#endif /* CTL_TIME_IO */ 914 ctl_run_task((union ctl_io *)taskio); 915 break; 916 } 917 /* Persistent Reserve action which needs attention */ 918 case CTL_MSG_PERS_ACTION: 919 presio = (struct ctl_prio *)ctl_alloc_io_nowait( 920 softc->othersc_pool); 921 if (presio == NULL) { 922 printf("ctl_isc_event_handler: can't allocate " 923 "ctl_io!\n"); 924 /* Bad Juju */ 925 /* Need to set busy and send msg back */ 926 goto bailout; 927 } 928 ctl_zero_io((union ctl_io *)presio); 929 presio->io_hdr.msg_type = CTL_MSG_PERS_ACTION; 930 presio->pr_msg = msg_info.pr; 931 ctl_enqueue_isc((union ctl_io *)presio); 932 break; 933 case CTL_MSG_SYNC_FE: 934 rcv_sync_msg = 1; 935 break; 936 default: 937 printf("How did I get here?\n"); 938 } 939 } else if (event == CTL_HA_EVT_MSG_SENT) { 940 if (param != CTL_HA_STATUS_SUCCESS) { 941 printf("Bad status from ctl_ha_msg_send status %d\n", 942 param); 943 } 944 return; 945 } else if (event == CTL_HA_EVT_DISCONNECT) { 946 printf("CTL: Got a disconnect from Isc\n"); 947 return; 948 } else { 949 printf("ctl_isc_event_handler: Unknown event %d\n", event); 950 return; 951 } 952 953bailout: 954 return; 955} 956 957static void 958ctl_copy_sense_data(union ctl_ha_msg *src, union ctl_io *dest) 959{ 960 struct scsi_sense_data *sense; 961 962 sense = &dest->scsiio.sense_data; 963 bcopy(&src->scsi.sense_data, sense, sizeof(*sense)); 964 dest->scsiio.scsi_status = src->scsi.scsi_status; 965 dest->scsiio.sense_len = src->scsi.sense_len; 966 dest->io_hdr.status = src->hdr.status; 967} 968 969static void 970ctl_est_ua(struct ctl_lun *lun, uint32_t initidx, ctl_ua_type ua) 971{ 972 ctl_ua_type *pu; 973 974 mtx_assert(&lun->lun_lock, MA_OWNED); 975 pu = lun->pending_ua[initidx / CTL_MAX_INIT_PER_PORT]; 976 if (pu == NULL) 977 return; 978 pu[initidx % CTL_MAX_INIT_PER_PORT] |= ua; 979} 980 981static void 982ctl_est_ua_all(struct ctl_lun *lun, uint32_t except, ctl_ua_type ua) 983{ 984 int i, j; 985 986 mtx_assert(&lun->lun_lock, MA_OWNED); 987 for (i = 0; i < CTL_MAX_PORTS; i++) { 988 if (lun->pending_ua[i] == NULL) 989 continue; 990 for (j = 0; j < CTL_MAX_INIT_PER_PORT; j++) { 991 if (i * CTL_MAX_INIT_PER_PORT + j == except) 992 continue; 993 lun->pending_ua[i][j] |= ua; 994 } 995 } 996} 997 998static void 999ctl_clr_ua(struct ctl_lun *lun, uint32_t initidx, ctl_ua_type ua) 1000{ 1001 ctl_ua_type *pu; 1002 1003 mtx_assert(&lun->lun_lock, MA_OWNED); 1004 pu = lun->pending_ua[initidx / CTL_MAX_INIT_PER_PORT]; 1005 if (pu == NULL) 1006 return; 1007 pu[initidx % CTL_MAX_INIT_PER_PORT] &= ~ua; 1008} 1009 1010static void 1011ctl_clr_ua_all(struct ctl_lun *lun, uint32_t except, ctl_ua_type ua) 1012{ 1013 int i, j; 1014 1015 mtx_assert(&lun->lun_lock, MA_OWNED); 1016 for (i = 0; i < CTL_MAX_PORTS; i++) { 1017 if (lun->pending_ua[i] == NULL) 1018 continue; 1019 for (j = 0; j < CTL_MAX_INIT_PER_PORT; j++) { 1020 if (i * CTL_MAX_INIT_PER_PORT + j == except) 1021 continue; 1022 lun->pending_ua[i][j] &= ~ua; 1023 } 1024 } 1025} 1026 1027static int 1028ctl_ha_state_sysctl(SYSCTL_HANDLER_ARGS) 1029{ 1030 struct ctl_softc *softc = (struct ctl_softc *)arg1; 1031 struct ctl_lun *lun; 1032 int error, value; 1033 1034 if (softc->flags & CTL_FLAG_ACTIVE_SHELF) 1035 value = 0; 1036 else 1037 value = 1; 1038 1039 error = sysctl_handle_int(oidp, &value, 0, req); 1040 if ((error != 0) || (req->newptr == NULL)) 1041 return (error); 1042 1043 mtx_lock(&softc->ctl_lock); 1044 if (value == 0) 1045 softc->flags |= CTL_FLAG_ACTIVE_SHELF; 1046 else 1047 softc->flags &= ~CTL_FLAG_ACTIVE_SHELF; 1048 STAILQ_FOREACH(lun, &softc->lun_list, links) { 1049 mtx_lock(&lun->lun_lock); 1050 ctl_est_ua_all(lun, -1, CTL_UA_ASYM_ACC_CHANGE); 1051 mtx_unlock(&lun->lun_lock); 1052 } 1053 mtx_unlock(&softc->ctl_lock); 1054 return (0); 1055} 1056 1057static int 1058ctl_init(void) 1059{ 1060 struct ctl_softc *softc; 1061 void *other_pool; 1062 struct ctl_port *port; 1063 int i, error, retval; 1064 //int isc_retval; 1065 1066 retval = 0; 1067 ctl_pause_rtr = 0; 1068 rcv_sync_msg = 0; 1069 1070 control_softc = malloc(sizeof(*control_softc), M_DEVBUF, 1071 M_WAITOK | M_ZERO); 1072 softc = control_softc; 1073 1074 softc->dev = make_dev(&ctl_cdevsw, 0, UID_ROOT, GID_OPERATOR, 0600, 1075 "cam/ctl"); 1076 1077 softc->dev->si_drv1 = softc; 1078 1079 /* 1080 * By default, return a "bad LUN" peripheral qualifier for unknown 1081 * LUNs. The user can override this default using the tunable or 1082 * sysctl. See the comment in ctl_inquiry_std() for more details. 1083 */ 1084 softc->inquiry_pq_no_lun = 1; 1085 TUNABLE_INT_FETCH("kern.cam.ctl.inquiry_pq_no_lun", 1086 &softc->inquiry_pq_no_lun); 1087 sysctl_ctx_init(&softc->sysctl_ctx); 1088 softc->sysctl_tree = SYSCTL_ADD_NODE(&softc->sysctl_ctx, 1089 SYSCTL_STATIC_CHILDREN(_kern_cam), OID_AUTO, "ctl", 1090 CTLFLAG_RD, 0, "CAM Target Layer"); 1091 1092 if (softc->sysctl_tree == NULL) { 1093 printf("%s: unable to allocate sysctl tree\n", __func__); 1094 destroy_dev(softc->dev); 1095 free(control_softc, M_DEVBUF); 1096 control_softc = NULL; 1097 return (ENOMEM); 1098 } 1099 1100 SYSCTL_ADD_INT(&softc->sysctl_ctx, 1101 SYSCTL_CHILDREN(softc->sysctl_tree), OID_AUTO, 1102 "inquiry_pq_no_lun", CTLFLAG_RW, 1103 &softc->inquiry_pq_no_lun, 0, 1104 "Report no lun possible for invalid LUNs"); 1105 1106 mtx_init(&softc->ctl_lock, "CTL mutex", NULL, MTX_DEF); 1107 softc->io_zone = uma_zcreate("CTL IO", sizeof(union ctl_io), 1108 NULL, NULL, NULL, NULL, UMA_ALIGN_PTR, 0); 1109 softc->open_count = 0; 1110 1111 /* 1112 * Default to actually sending a SYNCHRONIZE CACHE command down to 1113 * the drive. 1114 */ 1115 softc->flags = CTL_FLAG_REAL_SYNC; 1116 1117 /* 1118 * In Copan's HA scheme, the "master" and "slave" roles are 1119 * figured out through the slot the controller is in. Although it 1120 * is an active/active system, someone has to be in charge. 1121 */ 1122 SYSCTL_ADD_INT(&softc->sysctl_ctx, SYSCTL_CHILDREN(softc->sysctl_tree), 1123 OID_AUTO, "ha_id", CTLFLAG_RDTUN, &softc->ha_id, 0, 1124 "HA head ID (0 - no HA)"); 1125 if (softc->ha_id == 0) { 1126 softc->flags |= CTL_FLAG_ACTIVE_SHELF; 1127 softc->is_single = 1; 1128 softc->port_offset = 0; 1129 } else 1130 softc->port_offset = (softc->ha_id - 1) * CTL_MAX_PORTS; 1131 softc->persis_offset = softc->port_offset * CTL_MAX_INIT_PER_PORT; 1132 1133 /* 1134 * XXX KDM need to figure out where we want to get our target ID 1135 * and WWID. Is it different on each port? 1136 */ 1137 softc->target.id = 0; 1138 softc->target.wwid[0] = 0x12345678; 1139 softc->target.wwid[1] = 0x87654321; 1140 STAILQ_INIT(&softc->lun_list); 1141 STAILQ_INIT(&softc->pending_lun_queue); 1142 STAILQ_INIT(&softc->fe_list); 1143 STAILQ_INIT(&softc->port_list); 1144 STAILQ_INIT(&softc->be_list); 1145 ctl_tpc_init(softc); 1146 1147 if (ctl_pool_create(softc, "othersc", CTL_POOL_ENTRIES_OTHER_SC, 1148 &other_pool) != 0) 1149 { 1150 printf("ctl: can't allocate %d entry other SC pool, " 1151 "exiting\n", CTL_POOL_ENTRIES_OTHER_SC); 1152 return (ENOMEM); 1153 } 1154 softc->othersc_pool = other_pool; 1155 1156 if (worker_threads <= 0) 1157 worker_threads = max(1, mp_ncpus / 4); 1158 if (worker_threads > CTL_MAX_THREADS) 1159 worker_threads = CTL_MAX_THREADS; 1160 1161 for (i = 0; i < worker_threads; i++) { 1162 struct ctl_thread *thr = &softc->threads[i]; 1163 1164 mtx_init(&thr->queue_lock, "CTL queue mutex", NULL, MTX_DEF); 1165 thr->ctl_softc = softc; 1166 STAILQ_INIT(&thr->incoming_queue); 1167 STAILQ_INIT(&thr->rtr_queue); 1168 STAILQ_INIT(&thr->done_queue); 1169 STAILQ_INIT(&thr->isc_queue); 1170 1171 error = kproc_kthread_add(ctl_work_thread, thr, 1172 &softc->ctl_proc, &thr->thread, 0, 0, "ctl", "work%d", i); 1173 if (error != 0) { 1174 printf("error creating CTL work thread!\n"); 1175 ctl_pool_free(other_pool); 1176 return (error); 1177 } 1178 } 1179 error = kproc_kthread_add(ctl_lun_thread, softc, 1180 &softc->ctl_proc, NULL, 0, 0, "ctl", "lun"); 1181 if (error != 0) { 1182 printf("error creating CTL lun thread!\n"); 1183 ctl_pool_free(other_pool); 1184 return (error); 1185 } 1186 error = kproc_kthread_add(ctl_thresh_thread, softc, 1187 &softc->ctl_proc, NULL, 0, 0, "ctl", "thresh"); 1188 if (error != 0) { 1189 printf("error creating CTL threshold thread!\n"); 1190 ctl_pool_free(other_pool); 1191 return (error); 1192 } 1193 if (bootverbose) 1194 printf("ctl: CAM Target Layer loaded\n"); 1195 1196 /* 1197 * Initialize the ioctl front end. 1198 */ 1199 ctl_frontend_register(&ioctl_frontend); 1200 port = &softc->ioctl_info.port; 1201 port->frontend = &ioctl_frontend; 1202 sprintf(softc->ioctl_info.port_name, "ioctl"); 1203 port->port_type = CTL_PORT_IOCTL; 1204 port->num_requested_ctl_io = 100; 1205 port->port_name = softc->ioctl_info.port_name; 1206 port->port_online = ctl_ioctl_online; 1207 port->port_offline = ctl_ioctl_offline; 1208 port->onoff_arg = &softc->ioctl_info; 1209 port->lun_enable = ctl_ioctl_lun_enable; 1210 port->lun_disable = ctl_ioctl_lun_disable; 1211 port->targ_lun_arg = &softc->ioctl_info; 1212 port->fe_datamove = ctl_ioctl_datamove; 1213 port->fe_done = ctl_ioctl_done; 1214 port->max_targets = 15; 1215 port->max_target_id = 15; 1216 1217 if (ctl_port_register(&softc->ioctl_info.port) != 0) { 1218 printf("ctl: ioctl front end registration failed, will " 1219 "continue anyway\n"); 1220 } 1221 1222 SYSCTL_ADD_PROC(&softc->sysctl_ctx,SYSCTL_CHILDREN(softc->sysctl_tree), 1223 OID_AUTO, "ha_state", CTLTYPE_INT | CTLFLAG_RWTUN, 1224 softc, 0, ctl_ha_state_sysctl, "I", "HA state for this head"); 1225 1226#ifdef CTL_IO_DELAY 1227 if (sizeof(struct callout) > CTL_TIMER_BYTES) { 1228 printf("sizeof(struct callout) %zd > CTL_TIMER_BYTES %zd\n", 1229 sizeof(struct callout), CTL_TIMER_BYTES); 1230 return (EINVAL); 1231 } 1232#endif /* CTL_IO_DELAY */ 1233 1234 return (0); 1235} 1236 1237void 1238ctl_shutdown(void) 1239{ 1240 struct ctl_softc *softc; 1241 struct ctl_lun *lun, *next_lun; 1242 1243 softc = (struct ctl_softc *)control_softc; 1244 1245 if (ctl_port_deregister(&softc->ioctl_info.port) != 0) 1246 printf("ctl: ioctl front end deregistration failed\n"); 1247 1248 mtx_lock(&softc->ctl_lock); 1249 1250 /* 1251 * Free up each LUN. 1252 */ 1253 for (lun = STAILQ_FIRST(&softc->lun_list); lun != NULL; lun = next_lun){ 1254 next_lun = STAILQ_NEXT(lun, links); 1255 ctl_free_lun(lun); 1256 } 1257 1258 mtx_unlock(&softc->ctl_lock); 1259 1260 ctl_frontend_deregister(&ioctl_frontend); 1261 1262#if 0 1263 ctl_shutdown_thread(softc->work_thread); 1264 mtx_destroy(&softc->queue_lock); 1265#endif 1266 1267 ctl_tpc_shutdown(softc); 1268 uma_zdestroy(softc->io_zone); 1269 mtx_destroy(&softc->ctl_lock); 1270 1271 destroy_dev(softc->dev); 1272 1273 sysctl_ctx_free(&softc->sysctl_ctx); 1274 1275 free(control_softc, M_DEVBUF); 1276 control_softc = NULL; 1277 1278 if (bootverbose) 1279 printf("ctl: CAM Target Layer unloaded\n"); 1280} 1281 1282static int 1283ctl_module_event_handler(module_t mod, int what, void *arg) 1284{ 1285 1286 switch (what) { 1287 case MOD_LOAD: 1288 return (ctl_init()); 1289 case MOD_UNLOAD: 1290 return (EBUSY); 1291 default: 1292 return (EOPNOTSUPP); 1293 } 1294} 1295 1296/* 1297 * XXX KDM should we do some access checks here? Bump a reference count to 1298 * prevent a CTL module from being unloaded while someone has it open? 1299 */ 1300static int 1301ctl_open(struct cdev *dev, int flags, int fmt, struct thread *td) 1302{ 1303 return (0); 1304} 1305 1306static int 1307ctl_close(struct cdev *dev, int flags, int fmt, struct thread *td) 1308{ 1309 return (0); 1310} 1311 1312int 1313ctl_port_enable(ctl_port_type port_type) 1314{ 1315 struct ctl_softc *softc = control_softc; 1316 struct ctl_port *port; 1317 1318 if (softc->is_single == 0) { 1319 union ctl_ha_msg msg_info; 1320 int isc_retval; 1321 1322#if 0 1323 printf("%s: HA mode, synchronizing frontend enable\n", 1324 __func__); 1325#endif 1326 msg_info.hdr.msg_type = CTL_MSG_SYNC_FE; 1327 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 1328 sizeof(msg_info), 1 )) > CTL_HA_STATUS_SUCCESS) { 1329 printf("Sync msg send error retval %d\n", isc_retval); 1330 } 1331 if (!rcv_sync_msg) { 1332 isc_retval=ctl_ha_msg_recv(CTL_HA_CHAN_CTL, &msg_info, 1333 sizeof(msg_info), 1); 1334 } 1335#if 0 1336 printf("CTL:Frontend Enable\n"); 1337 } else { 1338 printf("%s: single mode, skipping frontend synchronization\n", 1339 __func__); 1340#endif 1341 } 1342 1343 STAILQ_FOREACH(port, &softc->port_list, links) { 1344 if (port_type & port->port_type) 1345 { 1346#if 0 1347 printf("port %d\n", port->targ_port); 1348#endif 1349 ctl_port_online(port); 1350 } 1351 } 1352 1353 return (0); 1354} 1355 1356int 1357ctl_port_disable(ctl_port_type port_type) 1358{ 1359 struct ctl_softc *softc; 1360 struct ctl_port *port; 1361 1362 softc = control_softc; 1363 1364 STAILQ_FOREACH(port, &softc->port_list, links) { 1365 if (port_type & port->port_type) 1366 ctl_port_offline(port); 1367 } 1368 1369 return (0); 1370} 1371 1372/* 1373 * Returns 0 for success, 1 for failure. 1374 * Currently the only failure mode is if there aren't enough entries 1375 * allocated. So, in case of a failure, look at num_entries_dropped, 1376 * reallocate and try again. 1377 */ 1378int 1379ctl_port_list(struct ctl_port_entry *entries, int num_entries_alloced, 1380 int *num_entries_filled, int *num_entries_dropped, 1381 ctl_port_type port_type, int no_virtual) 1382{ 1383 struct ctl_softc *softc; 1384 struct ctl_port *port; 1385 int entries_dropped, entries_filled; 1386 int retval; 1387 int i; 1388 1389 softc = control_softc; 1390 1391 retval = 0; 1392 entries_filled = 0; 1393 entries_dropped = 0; 1394 1395 i = 0; 1396 mtx_lock(&softc->ctl_lock); 1397 STAILQ_FOREACH(port, &softc->port_list, links) { 1398 struct ctl_port_entry *entry; 1399 1400 if ((port->port_type & port_type) == 0) 1401 continue; 1402 1403 if ((no_virtual != 0) 1404 && (port->virtual_port != 0)) 1405 continue; 1406 1407 if (entries_filled >= num_entries_alloced) { 1408 entries_dropped++; 1409 continue; 1410 } 1411 entry = &entries[i]; 1412 1413 entry->port_type = port->port_type; 1414 strlcpy(entry->port_name, port->port_name, 1415 sizeof(entry->port_name)); 1416 entry->physical_port = port->physical_port; 1417 entry->virtual_port = port->virtual_port; 1418 entry->wwnn = port->wwnn; 1419 entry->wwpn = port->wwpn; 1420 1421 i++; 1422 entries_filled++; 1423 } 1424 1425 mtx_unlock(&softc->ctl_lock); 1426 1427 if (entries_dropped > 0) 1428 retval = 1; 1429 1430 *num_entries_dropped = entries_dropped; 1431 *num_entries_filled = entries_filled; 1432 1433 return (retval); 1434} 1435 1436static void 1437ctl_ioctl_online(void *arg) 1438{ 1439 struct ctl_ioctl_info *ioctl_info; 1440 1441 ioctl_info = (struct ctl_ioctl_info *)arg; 1442 1443 ioctl_info->flags |= CTL_IOCTL_FLAG_ENABLED; 1444} 1445 1446static void 1447ctl_ioctl_offline(void *arg) 1448{ 1449 struct ctl_ioctl_info *ioctl_info; 1450 1451 ioctl_info = (struct ctl_ioctl_info *)arg; 1452 1453 ioctl_info->flags &= ~CTL_IOCTL_FLAG_ENABLED; 1454} 1455 1456/* 1457 * Remove an initiator by port number and initiator ID. 1458 * Returns 0 for success, -1 for failure. 1459 */ 1460int 1461ctl_remove_initiator(struct ctl_port *port, int iid) 1462{ 1463 struct ctl_softc *softc = control_softc; 1464 1465 mtx_assert(&softc->ctl_lock, MA_NOTOWNED); 1466 1467 if (iid > CTL_MAX_INIT_PER_PORT) { 1468 printf("%s: initiator ID %u > maximun %u!\n", 1469 __func__, iid, CTL_MAX_INIT_PER_PORT); 1470 return (-1); 1471 } 1472 1473 mtx_lock(&softc->ctl_lock); 1474 port->wwpn_iid[iid].in_use--; 1475 port->wwpn_iid[iid].last_use = time_uptime; 1476 mtx_unlock(&softc->ctl_lock); 1477 1478 return (0); 1479} 1480 1481/* 1482 * Add an initiator to the initiator map. 1483 * Returns iid for success, < 0 for failure. 1484 */ 1485int 1486ctl_add_initiator(struct ctl_port *port, int iid, uint64_t wwpn, char *name) 1487{ 1488 struct ctl_softc *softc = control_softc; 1489 time_t best_time; 1490 int i, best; 1491 1492 mtx_assert(&softc->ctl_lock, MA_NOTOWNED); 1493 1494 if (iid >= CTL_MAX_INIT_PER_PORT) { 1495 printf("%s: WWPN %#jx initiator ID %u > maximum %u!\n", 1496 __func__, wwpn, iid, CTL_MAX_INIT_PER_PORT); 1497 free(name, M_CTL); 1498 return (-1); 1499 } 1500 1501 mtx_lock(&softc->ctl_lock); 1502 1503 if (iid < 0 && (wwpn != 0 || name != NULL)) { 1504 for (i = 0; i < CTL_MAX_INIT_PER_PORT; i++) { 1505 if (wwpn != 0 && wwpn == port->wwpn_iid[i].wwpn) { 1506 iid = i; 1507 break; 1508 } 1509 if (name != NULL && port->wwpn_iid[i].name != NULL && 1510 strcmp(name, port->wwpn_iid[i].name) == 0) { 1511 iid = i; 1512 break; 1513 } 1514 } 1515 } 1516 1517 if (iid < 0) { 1518 for (i = 0; i < CTL_MAX_INIT_PER_PORT; i++) { 1519 if (port->wwpn_iid[i].in_use == 0 && 1520 port->wwpn_iid[i].wwpn == 0 && 1521 port->wwpn_iid[i].name == NULL) { 1522 iid = i; 1523 break; 1524 } 1525 } 1526 } 1527 1528 if (iid < 0) { 1529 best = -1; 1530 best_time = INT32_MAX; 1531 for (i = 0; i < CTL_MAX_INIT_PER_PORT; i++) { 1532 if (port->wwpn_iid[i].in_use == 0) { 1533 if (port->wwpn_iid[i].last_use < best_time) { 1534 best = i; 1535 best_time = port->wwpn_iid[i].last_use; 1536 } 1537 } 1538 } 1539 iid = best; 1540 } 1541 1542 if (iid < 0) { 1543 mtx_unlock(&softc->ctl_lock); 1544 free(name, M_CTL); 1545 return (-2); 1546 } 1547 1548 if (port->wwpn_iid[iid].in_use > 0 && (wwpn != 0 || name != NULL)) { 1549 /* 1550 * This is not an error yet. 1551 */ 1552 if (wwpn != 0 && wwpn == port->wwpn_iid[iid].wwpn) { 1553#if 0 1554 printf("%s: port %d iid %u WWPN %#jx arrived" 1555 " again\n", __func__, port->targ_port, 1556 iid, (uintmax_t)wwpn); 1557#endif 1558 goto take; 1559 } 1560 if (name != NULL && port->wwpn_iid[iid].name != NULL && 1561 strcmp(name, port->wwpn_iid[iid].name) == 0) { 1562#if 0 1563 printf("%s: port %d iid %u name '%s' arrived" 1564 " again\n", __func__, port->targ_port, 1565 iid, name); 1566#endif 1567 goto take; 1568 } 1569 1570 /* 1571 * This is an error, but what do we do about it? The 1572 * driver is telling us we have a new WWPN for this 1573 * initiator ID, so we pretty much need to use it. 1574 */ 1575 printf("%s: port %d iid %u WWPN %#jx '%s' arrived," 1576 " but WWPN %#jx '%s' is still at that address\n", 1577 __func__, port->targ_port, iid, wwpn, name, 1578 (uintmax_t)port->wwpn_iid[iid].wwpn, 1579 port->wwpn_iid[iid].name); 1580 1581 /* 1582 * XXX KDM clear have_ca and ua_pending on each LUN for 1583 * this initiator. 1584 */ 1585 } 1586take: 1587 free(port->wwpn_iid[iid].name, M_CTL); 1588 port->wwpn_iid[iid].name = name; 1589 port->wwpn_iid[iid].wwpn = wwpn; 1590 port->wwpn_iid[iid].in_use++; 1591 mtx_unlock(&softc->ctl_lock); 1592 1593 return (iid); 1594} 1595 1596static int 1597ctl_create_iid(struct ctl_port *port, int iid, uint8_t *buf) 1598{ 1599 int len; 1600 1601 switch (port->port_type) { 1602 case CTL_PORT_FC: 1603 { 1604 struct scsi_transportid_fcp *id = 1605 (struct scsi_transportid_fcp *)buf; 1606 if (port->wwpn_iid[iid].wwpn == 0) 1607 return (0); 1608 memset(id, 0, sizeof(*id)); 1609 id->format_protocol = SCSI_PROTO_FC; 1610 scsi_u64to8b(port->wwpn_iid[iid].wwpn, id->n_port_name); 1611 return (sizeof(*id)); 1612 } 1613 case CTL_PORT_ISCSI: 1614 { 1615 struct scsi_transportid_iscsi_port *id = 1616 (struct scsi_transportid_iscsi_port *)buf; 1617 if (port->wwpn_iid[iid].name == NULL) 1618 return (0); 1619 memset(id, 0, 256); 1620 id->format_protocol = SCSI_TRN_ISCSI_FORMAT_PORT | 1621 SCSI_PROTO_ISCSI; 1622 len = strlcpy(id->iscsi_name, port->wwpn_iid[iid].name, 252) + 1; 1623 len = roundup2(min(len, 252), 4); 1624 scsi_ulto2b(len, id->additional_length); 1625 return (sizeof(*id) + len); 1626 } 1627 case CTL_PORT_SAS: 1628 { 1629 struct scsi_transportid_sas *id = 1630 (struct scsi_transportid_sas *)buf; 1631 if (port->wwpn_iid[iid].wwpn == 0) 1632 return (0); 1633 memset(id, 0, sizeof(*id)); 1634 id->format_protocol = SCSI_PROTO_SAS; 1635 scsi_u64to8b(port->wwpn_iid[iid].wwpn, id->sas_address); 1636 return (sizeof(*id)); 1637 } 1638 default: 1639 { 1640 struct scsi_transportid_spi *id = 1641 (struct scsi_transportid_spi *)buf; 1642 memset(id, 0, sizeof(*id)); 1643 id->format_protocol = SCSI_PROTO_SPI; 1644 scsi_ulto2b(iid, id->scsi_addr); 1645 scsi_ulto2b(port->targ_port, id->rel_trgt_port_id); 1646 return (sizeof(*id)); 1647 } 1648 } 1649} 1650 1651static int 1652ctl_ioctl_lun_enable(void *arg, struct ctl_id targ_id, int lun_id) 1653{ 1654 return (0); 1655} 1656 1657static int 1658ctl_ioctl_lun_disable(void *arg, struct ctl_id targ_id, int lun_id) 1659{ 1660 return (0); 1661} 1662 1663/* 1664 * Data movement routine for the CTL ioctl frontend port. 1665 */ 1666static int 1667ctl_ioctl_do_datamove(struct ctl_scsiio *ctsio) 1668{ 1669 struct ctl_sg_entry *ext_sglist, *kern_sglist; 1670 struct ctl_sg_entry ext_entry, kern_entry; 1671 int ext_sglen, ext_sg_entries, kern_sg_entries; 1672 int ext_sg_start, ext_offset; 1673 int len_to_copy, len_copied; 1674 int kern_watermark, ext_watermark; 1675 int ext_sglist_malloced; 1676 int i, j; 1677 1678 ext_sglist_malloced = 0; 1679 ext_sg_start = 0; 1680 ext_offset = 0; 1681 1682 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove\n")); 1683 1684 /* 1685 * If this flag is set, fake the data transfer. 1686 */ 1687 if (ctsio->io_hdr.flags & CTL_FLAG_NO_DATAMOVE) { 1688 ctsio->ext_data_filled = ctsio->ext_data_len; 1689 goto bailout; 1690 } 1691 1692 /* 1693 * To simplify things here, if we have a single buffer, stick it in 1694 * a S/G entry and just make it a single entry S/G list. 1695 */ 1696 if (ctsio->io_hdr.flags & CTL_FLAG_EDPTR_SGLIST) { 1697 int len_seen; 1698 1699 ext_sglen = ctsio->ext_sg_entries * sizeof(*ext_sglist); 1700 1701 ext_sglist = (struct ctl_sg_entry *)malloc(ext_sglen, M_CTL, 1702 M_WAITOK); 1703 ext_sglist_malloced = 1; 1704 if (copyin(ctsio->ext_data_ptr, ext_sglist, 1705 ext_sglen) != 0) { 1706 ctl_set_internal_failure(ctsio, 1707 /*sks_valid*/ 0, 1708 /*retry_count*/ 0); 1709 goto bailout; 1710 } 1711 ext_sg_entries = ctsio->ext_sg_entries; 1712 len_seen = 0; 1713 for (i = 0; i < ext_sg_entries; i++) { 1714 if ((len_seen + ext_sglist[i].len) >= 1715 ctsio->ext_data_filled) { 1716 ext_sg_start = i; 1717 ext_offset = ctsio->ext_data_filled - len_seen; 1718 break; 1719 } 1720 len_seen += ext_sglist[i].len; 1721 } 1722 } else { 1723 ext_sglist = &ext_entry; 1724 ext_sglist->addr = ctsio->ext_data_ptr; 1725 ext_sglist->len = ctsio->ext_data_len; 1726 ext_sg_entries = 1; 1727 ext_sg_start = 0; 1728 ext_offset = ctsio->ext_data_filled; 1729 } 1730 1731 if (ctsio->kern_sg_entries > 0) { 1732 kern_sglist = (struct ctl_sg_entry *)ctsio->kern_data_ptr; 1733 kern_sg_entries = ctsio->kern_sg_entries; 1734 } else { 1735 kern_sglist = &kern_entry; 1736 kern_sglist->addr = ctsio->kern_data_ptr; 1737 kern_sglist->len = ctsio->kern_data_len; 1738 kern_sg_entries = 1; 1739 } 1740 1741 1742 kern_watermark = 0; 1743 ext_watermark = ext_offset; 1744 len_copied = 0; 1745 for (i = ext_sg_start, j = 0; 1746 i < ext_sg_entries && j < kern_sg_entries;) { 1747 uint8_t *ext_ptr, *kern_ptr; 1748 1749 len_to_copy = MIN(ext_sglist[i].len - ext_watermark, 1750 kern_sglist[j].len - kern_watermark); 1751 1752 ext_ptr = (uint8_t *)ext_sglist[i].addr; 1753 ext_ptr = ext_ptr + ext_watermark; 1754 if (ctsio->io_hdr.flags & CTL_FLAG_BUS_ADDR) { 1755 /* 1756 * XXX KDM fix this! 1757 */ 1758 panic("need to implement bus address support"); 1759#if 0 1760 kern_ptr = bus_to_virt(kern_sglist[j].addr); 1761#endif 1762 } else 1763 kern_ptr = (uint8_t *)kern_sglist[j].addr; 1764 kern_ptr = kern_ptr + kern_watermark; 1765 1766 kern_watermark += len_to_copy; 1767 ext_watermark += len_to_copy; 1768 1769 if ((ctsio->io_hdr.flags & CTL_FLAG_DATA_MASK) == 1770 CTL_FLAG_DATA_IN) { 1771 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove: copying %d " 1772 "bytes to user\n", len_to_copy)); 1773 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove: from %p " 1774 "to %p\n", kern_ptr, ext_ptr)); 1775 if (copyout(kern_ptr, ext_ptr, len_to_copy) != 0) { 1776 ctl_set_internal_failure(ctsio, 1777 /*sks_valid*/ 0, 1778 /*retry_count*/ 0); 1779 goto bailout; 1780 } 1781 } else { 1782 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove: copying %d " 1783 "bytes from user\n", len_to_copy)); 1784 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove: from %p " 1785 "to %p\n", ext_ptr, kern_ptr)); 1786 if (copyin(ext_ptr, kern_ptr, len_to_copy)!= 0){ 1787 ctl_set_internal_failure(ctsio, 1788 /*sks_valid*/ 0, 1789 /*retry_count*/0); 1790 goto bailout; 1791 } 1792 } 1793 1794 len_copied += len_to_copy; 1795 1796 if (ext_sglist[i].len == ext_watermark) { 1797 i++; 1798 ext_watermark = 0; 1799 } 1800 1801 if (kern_sglist[j].len == kern_watermark) { 1802 j++; 1803 kern_watermark = 0; 1804 } 1805 } 1806 1807 ctsio->ext_data_filled += len_copied; 1808 1809 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove: ext_sg_entries: %d, " 1810 "kern_sg_entries: %d\n", ext_sg_entries, 1811 kern_sg_entries)); 1812 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove: ext_data_len = %d, " 1813 "kern_data_len = %d\n", ctsio->ext_data_len, 1814 ctsio->kern_data_len)); 1815 1816 1817 /* XXX KDM set residual?? */ 1818bailout: 1819 1820 if (ext_sglist_malloced != 0) 1821 free(ext_sglist, M_CTL); 1822 1823 return (CTL_RETVAL_COMPLETE); 1824} 1825 1826/* 1827 * Serialize a command that went down the "wrong" side, and so was sent to 1828 * this controller for execution. The logic is a little different than the 1829 * standard case in ctl_scsiio_precheck(). Errors in this case need to get 1830 * sent back to the other side, but in the success case, we execute the 1831 * command on this side (XFER mode) or tell the other side to execute it 1832 * (SER_ONLY mode). 1833 */ 1834static int 1835ctl_serialize_other_sc_cmd(struct ctl_scsiio *ctsio) 1836{ 1837 struct ctl_softc *softc; 1838 union ctl_ha_msg msg_info; 1839 struct ctl_lun *lun; 1840 int retval = 0; 1841 uint32_t targ_lun; 1842 1843 softc = control_softc; 1844 1845 targ_lun = ctsio->io_hdr.nexus.targ_mapped_lun; 1846 lun = softc->ctl_luns[targ_lun]; 1847 if (lun==NULL) 1848 { 1849 /* 1850 * Why isn't LUN defined? The other side wouldn't 1851 * send a cmd if the LUN is undefined. 1852 */ 1853 printf("%s: Bad JUJU!, LUN is NULL!\n", __func__); 1854 1855 /* "Logical unit not supported" */ 1856 ctl_set_sense_data(&msg_info.scsi.sense_data, 1857 lun, 1858 /*sense_format*/SSD_TYPE_NONE, 1859 /*current_error*/ 1, 1860 /*sense_key*/ SSD_KEY_ILLEGAL_REQUEST, 1861 /*asc*/ 0x25, 1862 /*ascq*/ 0x00, 1863 SSD_ELEM_NONE); 1864 1865 msg_info.scsi.sense_len = SSD_FULL_SIZE; 1866 msg_info.scsi.scsi_status = SCSI_STATUS_CHECK_COND; 1867 msg_info.hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 1868 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 1869 msg_info.hdr.serializing_sc = NULL; 1870 msg_info.hdr.msg_type = CTL_MSG_BAD_JUJU; 1871 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 1872 sizeof(msg_info), 0 ) > CTL_HA_STATUS_SUCCESS) { 1873 } 1874 return(1); 1875 1876 } 1877 1878 mtx_lock(&lun->lun_lock); 1879 TAILQ_INSERT_TAIL(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 1880 1881 switch (ctl_check_ooa(lun, (union ctl_io *)ctsio, 1882 (union ctl_io *)TAILQ_PREV(&ctsio->io_hdr, ctl_ooaq, 1883 ooa_links))) { 1884 case CTL_ACTION_BLOCK: 1885 ctsio->io_hdr.flags |= CTL_FLAG_BLOCKED; 1886 TAILQ_INSERT_TAIL(&lun->blocked_queue, &ctsio->io_hdr, 1887 blocked_links); 1888 break; 1889 case CTL_ACTION_PASS: 1890 case CTL_ACTION_SKIP: 1891 if (softc->ha_mode == CTL_HA_MODE_XFER) { 1892 ctsio->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 1893 ctl_enqueue_rtr((union ctl_io *)ctsio); 1894 } else { 1895 1896 /* send msg back to other side */ 1897 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 1898 msg_info.hdr.serializing_sc = (union ctl_io *)ctsio; 1899 msg_info.hdr.msg_type = CTL_MSG_R2R; 1900#if 0 1901 printf("2. pOrig %x\n", (int)msg_info.hdr.original_sc); 1902#endif 1903 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 1904 sizeof(msg_info), 0 ) > CTL_HA_STATUS_SUCCESS) { 1905 } 1906 } 1907 break; 1908 case CTL_ACTION_OVERLAP: 1909 /* OVERLAPPED COMMANDS ATTEMPTED */ 1910 ctl_set_sense_data(&msg_info.scsi.sense_data, 1911 lun, 1912 /*sense_format*/SSD_TYPE_NONE, 1913 /*current_error*/ 1, 1914 /*sense_key*/ SSD_KEY_ILLEGAL_REQUEST, 1915 /*asc*/ 0x4E, 1916 /*ascq*/ 0x00, 1917 SSD_ELEM_NONE); 1918 1919 msg_info.scsi.sense_len = SSD_FULL_SIZE; 1920 msg_info.scsi.scsi_status = SCSI_STATUS_CHECK_COND; 1921 msg_info.hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 1922 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 1923 msg_info.hdr.serializing_sc = NULL; 1924 msg_info.hdr.msg_type = CTL_MSG_BAD_JUJU; 1925#if 0 1926 printf("BAD JUJU:Major Bummer Overlap\n"); 1927#endif 1928 TAILQ_REMOVE(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 1929 retval = 1; 1930 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 1931 sizeof(msg_info), 0 ) > CTL_HA_STATUS_SUCCESS) { 1932 } 1933 break; 1934 case CTL_ACTION_OVERLAP_TAG: 1935 /* TAGGED OVERLAPPED COMMANDS (NN = QUEUE TAG) */ 1936 ctl_set_sense_data(&msg_info.scsi.sense_data, 1937 lun, 1938 /*sense_format*/SSD_TYPE_NONE, 1939 /*current_error*/ 1, 1940 /*sense_key*/ SSD_KEY_ILLEGAL_REQUEST, 1941 /*asc*/ 0x4D, 1942 /*ascq*/ ctsio->tag_num & 0xff, 1943 SSD_ELEM_NONE); 1944 1945 msg_info.scsi.sense_len = SSD_FULL_SIZE; 1946 msg_info.scsi.scsi_status = SCSI_STATUS_CHECK_COND; 1947 msg_info.hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 1948 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 1949 msg_info.hdr.serializing_sc = NULL; 1950 msg_info.hdr.msg_type = CTL_MSG_BAD_JUJU; 1951#if 0 1952 printf("BAD JUJU:Major Bummer Overlap Tag\n"); 1953#endif 1954 TAILQ_REMOVE(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 1955 retval = 1; 1956 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 1957 sizeof(msg_info), 0 ) > CTL_HA_STATUS_SUCCESS) { 1958 } 1959 break; 1960 case CTL_ACTION_ERROR: 1961 default: 1962 /* "Internal target failure" */ 1963 ctl_set_sense_data(&msg_info.scsi.sense_data, 1964 lun, 1965 /*sense_format*/SSD_TYPE_NONE, 1966 /*current_error*/ 1, 1967 /*sense_key*/ SSD_KEY_HARDWARE_ERROR, 1968 /*asc*/ 0x44, 1969 /*ascq*/ 0x00, 1970 SSD_ELEM_NONE); 1971 1972 msg_info.scsi.sense_len = SSD_FULL_SIZE; 1973 msg_info.scsi.scsi_status = SCSI_STATUS_CHECK_COND; 1974 msg_info.hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 1975 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 1976 msg_info.hdr.serializing_sc = NULL; 1977 msg_info.hdr.msg_type = CTL_MSG_BAD_JUJU; 1978#if 0 1979 printf("BAD JUJU:Major Bummer HW Error\n"); 1980#endif 1981 TAILQ_REMOVE(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 1982 retval = 1; 1983 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 1984 sizeof(msg_info), 0 ) > CTL_HA_STATUS_SUCCESS) { 1985 } 1986 break; 1987 } 1988 mtx_unlock(&lun->lun_lock); 1989 return (retval); 1990} 1991 1992static int 1993ctl_ioctl_submit_wait(union ctl_io *io) 1994{ 1995 struct ctl_fe_ioctl_params params; 1996 ctl_fe_ioctl_state last_state; 1997 int done, retval; 1998 1999 retval = 0; 2000 2001 bzero(¶ms, sizeof(params)); 2002 2003 mtx_init(¶ms.ioctl_mtx, "ctliocmtx", NULL, MTX_DEF); 2004 cv_init(¶ms.sem, "ctlioccv"); 2005 params.state = CTL_IOCTL_INPROG; 2006 last_state = params.state; 2007 2008 io->io_hdr.ctl_private[CTL_PRIV_FRONTEND].ptr = ¶ms; 2009 2010 CTL_DEBUG_PRINT(("ctl_ioctl_submit_wait\n")); 2011 2012 /* This shouldn't happen */ 2013 if ((retval = ctl_queue(io)) != CTL_RETVAL_COMPLETE) 2014 return (retval); 2015 2016 done = 0; 2017 2018 do { 2019 mtx_lock(¶ms.ioctl_mtx); 2020 /* 2021 * Check the state here, and don't sleep if the state has 2022 * already changed (i.e. wakeup has already occured, but we 2023 * weren't waiting yet). 2024 */ 2025 if (params.state == last_state) { 2026 /* XXX KDM cv_wait_sig instead? */ 2027 cv_wait(¶ms.sem, ¶ms.ioctl_mtx); 2028 } 2029 last_state = params.state; 2030 2031 switch (params.state) { 2032 case CTL_IOCTL_INPROG: 2033 /* Why did we wake up? */ 2034 /* XXX KDM error here? */ 2035 mtx_unlock(¶ms.ioctl_mtx); 2036 break; 2037 case CTL_IOCTL_DATAMOVE: 2038 CTL_DEBUG_PRINT(("got CTL_IOCTL_DATAMOVE\n")); 2039 2040 /* 2041 * change last_state back to INPROG to avoid 2042 * deadlock on subsequent data moves. 2043 */ 2044 params.state = last_state = CTL_IOCTL_INPROG; 2045 2046 mtx_unlock(¶ms.ioctl_mtx); 2047 ctl_ioctl_do_datamove(&io->scsiio); 2048 /* 2049 * Note that in some cases, most notably writes, 2050 * this will queue the I/O and call us back later. 2051 * In other cases, generally reads, this routine 2052 * will immediately call back and wake us up, 2053 * probably using our own context. 2054 */ 2055 io->scsiio.be_move_done(io); 2056 break; 2057 case CTL_IOCTL_DONE: 2058 mtx_unlock(¶ms.ioctl_mtx); 2059 CTL_DEBUG_PRINT(("got CTL_IOCTL_DONE\n")); 2060 done = 1; 2061 break; 2062 default: 2063 mtx_unlock(¶ms.ioctl_mtx); 2064 /* XXX KDM error here? */ 2065 break; 2066 } 2067 } while (done == 0); 2068 2069 mtx_destroy(¶ms.ioctl_mtx); 2070 cv_destroy(¶ms.sem); 2071 2072 return (CTL_RETVAL_COMPLETE); 2073} 2074 2075static void 2076ctl_ioctl_datamove(union ctl_io *io) 2077{ 2078 struct ctl_fe_ioctl_params *params; 2079 2080 params = (struct ctl_fe_ioctl_params *) 2081 io->io_hdr.ctl_private[CTL_PRIV_FRONTEND].ptr; 2082 2083 mtx_lock(¶ms->ioctl_mtx); 2084 params->state = CTL_IOCTL_DATAMOVE; 2085 cv_broadcast(¶ms->sem); 2086 mtx_unlock(¶ms->ioctl_mtx); 2087} 2088 2089static void 2090ctl_ioctl_done(union ctl_io *io) 2091{ 2092 struct ctl_fe_ioctl_params *params; 2093 2094 params = (struct ctl_fe_ioctl_params *) 2095 io->io_hdr.ctl_private[CTL_PRIV_FRONTEND].ptr; 2096 2097 mtx_lock(¶ms->ioctl_mtx); 2098 params->state = CTL_IOCTL_DONE; 2099 cv_broadcast(¶ms->sem); 2100 mtx_unlock(¶ms->ioctl_mtx); 2101} 2102 2103static void 2104ctl_ioctl_hard_startstop_callback(void *arg, struct cfi_metatask *metatask) 2105{ 2106 struct ctl_fe_ioctl_startstop_info *sd_info; 2107 2108 sd_info = (struct ctl_fe_ioctl_startstop_info *)arg; 2109 2110 sd_info->hs_info.status = metatask->status; 2111 sd_info->hs_info.total_luns = metatask->taskinfo.startstop.total_luns; 2112 sd_info->hs_info.luns_complete = 2113 metatask->taskinfo.startstop.luns_complete; 2114 sd_info->hs_info.luns_failed = metatask->taskinfo.startstop.luns_failed; 2115 2116 cv_broadcast(&sd_info->sem); 2117} 2118 2119static void 2120ctl_ioctl_bbrread_callback(void *arg, struct cfi_metatask *metatask) 2121{ 2122 struct ctl_fe_ioctl_bbrread_info *fe_bbr_info; 2123 2124 fe_bbr_info = (struct ctl_fe_ioctl_bbrread_info *)arg; 2125 2126 mtx_lock(fe_bbr_info->lock); 2127 fe_bbr_info->bbr_info->status = metatask->status; 2128 fe_bbr_info->bbr_info->bbr_status = metatask->taskinfo.bbrread.status; 2129 fe_bbr_info->wakeup_done = 1; 2130 mtx_unlock(fe_bbr_info->lock); 2131 2132 cv_broadcast(&fe_bbr_info->sem); 2133} 2134 2135/* 2136 * Returns 0 for success, errno for failure. 2137 */ 2138static int 2139ctl_ioctl_fill_ooa(struct ctl_lun *lun, uint32_t *cur_fill_num, 2140 struct ctl_ooa *ooa_hdr, struct ctl_ooa_entry *kern_entries) 2141{ 2142 union ctl_io *io; 2143 int retval; 2144 2145 retval = 0; 2146 2147 mtx_lock(&lun->lun_lock); 2148 for (io = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); (io != NULL); 2149 (*cur_fill_num)++, io = (union ctl_io *)TAILQ_NEXT(&io->io_hdr, 2150 ooa_links)) { 2151 struct ctl_ooa_entry *entry; 2152 2153 /* 2154 * If we've got more than we can fit, just count the 2155 * remaining entries. 2156 */ 2157 if (*cur_fill_num >= ooa_hdr->alloc_num) 2158 continue; 2159 2160 entry = &kern_entries[*cur_fill_num]; 2161 2162 entry->tag_num = io->scsiio.tag_num; 2163 entry->lun_num = lun->lun; 2164#ifdef CTL_TIME_IO 2165 entry->start_bt = io->io_hdr.start_bt; 2166#endif 2167 bcopy(io->scsiio.cdb, entry->cdb, io->scsiio.cdb_len); 2168 entry->cdb_len = io->scsiio.cdb_len; 2169 if (io->io_hdr.flags & CTL_FLAG_BLOCKED) 2170 entry->cmd_flags |= CTL_OOACMD_FLAG_BLOCKED; 2171 2172 if (io->io_hdr.flags & CTL_FLAG_DMA_INPROG) 2173 entry->cmd_flags |= CTL_OOACMD_FLAG_DMA; 2174 2175 if (io->io_hdr.flags & CTL_FLAG_ABORT) 2176 entry->cmd_flags |= CTL_OOACMD_FLAG_ABORT; 2177 2178 if (io->io_hdr.flags & CTL_FLAG_IS_WAS_ON_RTR) 2179 entry->cmd_flags |= CTL_OOACMD_FLAG_RTR; 2180 2181 if (io->io_hdr.flags & CTL_FLAG_DMA_QUEUED) 2182 entry->cmd_flags |= CTL_OOACMD_FLAG_DMA_QUEUED; 2183 } 2184 mtx_unlock(&lun->lun_lock); 2185 2186 return (retval); 2187} 2188 2189static void * 2190ctl_copyin_alloc(void *user_addr, int len, char *error_str, 2191 size_t error_str_len) 2192{ 2193 void *kptr; 2194 2195 kptr = malloc(len, M_CTL, M_WAITOK | M_ZERO); 2196 2197 if (copyin(user_addr, kptr, len) != 0) { 2198 snprintf(error_str, error_str_len, "Error copying %d bytes " 2199 "from user address %p to kernel address %p", len, 2200 user_addr, kptr); 2201 free(kptr, M_CTL); 2202 return (NULL); 2203 } 2204 2205 return (kptr); 2206} 2207 2208static void 2209ctl_free_args(int num_args, struct ctl_be_arg *args) 2210{ 2211 int i; 2212 2213 if (args == NULL) 2214 return; 2215 2216 for (i = 0; i < num_args; i++) { 2217 free(args[i].kname, M_CTL); 2218 free(args[i].kvalue, M_CTL); 2219 } 2220 2221 free(args, M_CTL); 2222} 2223 2224static struct ctl_be_arg * 2225ctl_copyin_args(int num_args, struct ctl_be_arg *uargs, 2226 char *error_str, size_t error_str_len) 2227{ 2228 struct ctl_be_arg *args; 2229 int i; 2230 2231 args = ctl_copyin_alloc(uargs, num_args * sizeof(*args), 2232 error_str, error_str_len); 2233 2234 if (args == NULL) 2235 goto bailout; 2236 2237 for (i = 0; i < num_args; i++) { 2238 args[i].kname = NULL; 2239 args[i].kvalue = NULL; 2240 } 2241 2242 for (i = 0; i < num_args; i++) { 2243 uint8_t *tmpptr; 2244 2245 args[i].kname = ctl_copyin_alloc(args[i].name, 2246 args[i].namelen, error_str, error_str_len); 2247 if (args[i].kname == NULL) 2248 goto bailout; 2249 2250 if (args[i].kname[args[i].namelen - 1] != '\0') { 2251 snprintf(error_str, error_str_len, "Argument %d " 2252 "name is not NUL-terminated", i); 2253 goto bailout; 2254 } 2255 2256 if (args[i].flags & CTL_BEARG_RD) { 2257 tmpptr = ctl_copyin_alloc(args[i].value, 2258 args[i].vallen, error_str, error_str_len); 2259 if (tmpptr == NULL) 2260 goto bailout; 2261 if ((args[i].flags & CTL_BEARG_ASCII) 2262 && (tmpptr[args[i].vallen - 1] != '\0')) { 2263 snprintf(error_str, error_str_len, "Argument " 2264 "%d value is not NUL-terminated", i); 2265 goto bailout; 2266 } 2267 args[i].kvalue = tmpptr; 2268 } else { 2269 args[i].kvalue = malloc(args[i].vallen, 2270 M_CTL, M_WAITOK | M_ZERO); 2271 } 2272 } 2273 2274 return (args); 2275bailout: 2276 2277 ctl_free_args(num_args, args); 2278 2279 return (NULL); 2280} 2281 2282static void 2283ctl_copyout_args(int num_args, struct ctl_be_arg *args) 2284{ 2285 int i; 2286 2287 for (i = 0; i < num_args; i++) { 2288 if (args[i].flags & CTL_BEARG_WR) 2289 copyout(args[i].kvalue, args[i].value, args[i].vallen); 2290 } 2291} 2292 2293/* 2294 * Escape characters that are illegal or not recommended in XML. 2295 */ 2296int 2297ctl_sbuf_printf_esc(struct sbuf *sb, char *str, int size) 2298{ 2299 char *end = str + size; 2300 int retval; 2301 2302 retval = 0; 2303 2304 for (; *str && str < end; str++) { 2305 switch (*str) { 2306 case '&': 2307 retval = sbuf_printf(sb, "&"); 2308 break; 2309 case '>': 2310 retval = sbuf_printf(sb, ">"); 2311 break; 2312 case '<': 2313 retval = sbuf_printf(sb, "<"); 2314 break; 2315 default: 2316 retval = sbuf_putc(sb, *str); 2317 break; 2318 } 2319 2320 if (retval != 0) 2321 break; 2322 2323 } 2324 2325 return (retval); 2326} 2327 2328static void 2329ctl_id_sbuf(struct ctl_devid *id, struct sbuf *sb) 2330{ 2331 struct scsi_vpd_id_descriptor *desc; 2332 int i; 2333 2334 if (id == NULL || id->len < 4) 2335 return; 2336 desc = (struct scsi_vpd_id_descriptor *)id->data; 2337 switch (desc->id_type & SVPD_ID_TYPE_MASK) { 2338 case SVPD_ID_TYPE_T10: 2339 sbuf_printf(sb, "t10."); 2340 break; 2341 case SVPD_ID_TYPE_EUI64: 2342 sbuf_printf(sb, "eui."); 2343 break; 2344 case SVPD_ID_TYPE_NAA: 2345 sbuf_printf(sb, "naa."); 2346 break; 2347 case SVPD_ID_TYPE_SCSI_NAME: 2348 break; 2349 } 2350 switch (desc->proto_codeset & SVPD_ID_CODESET_MASK) { 2351 case SVPD_ID_CODESET_BINARY: 2352 for (i = 0; i < desc->length; i++) 2353 sbuf_printf(sb, "%02x", desc->identifier[i]); 2354 break; 2355 case SVPD_ID_CODESET_ASCII: 2356 sbuf_printf(sb, "%.*s", (int)desc->length, 2357 (char *)desc->identifier); 2358 break; 2359 case SVPD_ID_CODESET_UTF8: 2360 sbuf_printf(sb, "%s", (char *)desc->identifier); 2361 break; 2362 } 2363} 2364 2365static int 2366ctl_ioctl(struct cdev *dev, u_long cmd, caddr_t addr, int flag, 2367 struct thread *td) 2368{ 2369 struct ctl_softc *softc; 2370 int retval; 2371 2372 softc = control_softc; 2373 2374 retval = 0; 2375 2376 switch (cmd) { 2377 case CTL_IO: { 2378 union ctl_io *io; 2379 void *pool_tmp; 2380 2381 /* 2382 * If we haven't been "enabled", don't allow any SCSI I/O 2383 * to this FETD. 2384 */ 2385 if ((softc->ioctl_info.flags & CTL_IOCTL_FLAG_ENABLED) == 0) { 2386 retval = EPERM; 2387 break; 2388 } 2389 2390 io = ctl_alloc_io(softc->ioctl_info.port.ctl_pool_ref); 2391 2392 /* 2393 * Need to save the pool reference so it doesn't get 2394 * spammed by the user's ctl_io. 2395 */ 2396 pool_tmp = io->io_hdr.pool; 2397 memcpy(io, (void *)addr, sizeof(*io)); 2398 io->io_hdr.pool = pool_tmp; 2399 2400 /* 2401 * No status yet, so make sure the status is set properly. 2402 */ 2403 io->io_hdr.status = CTL_STATUS_NONE; 2404 2405 /* 2406 * The user sets the initiator ID, target and LUN IDs. 2407 */ 2408 io->io_hdr.nexus.targ_port = softc->ioctl_info.port.targ_port; 2409 io->io_hdr.flags |= CTL_FLAG_USER_REQ; 2410 if ((io->io_hdr.io_type == CTL_IO_SCSI) 2411 && (io->scsiio.tag_type != CTL_TAG_UNTAGGED)) 2412 io->scsiio.tag_num = softc->ioctl_info.cur_tag_num++; 2413 2414 retval = ctl_ioctl_submit_wait(io); 2415 2416 if (retval != 0) { 2417 ctl_free_io(io); 2418 break; 2419 } 2420 2421 memcpy((void *)addr, io, sizeof(*io)); 2422 2423 /* return this to our pool */ 2424 ctl_free_io(io); 2425 2426 break; 2427 } 2428 case CTL_ENABLE_PORT: 2429 case CTL_DISABLE_PORT: 2430 case CTL_SET_PORT_WWNS: { 2431 struct ctl_port *port; 2432 struct ctl_port_entry *entry; 2433 2434 entry = (struct ctl_port_entry *)addr; 2435 2436 mtx_lock(&softc->ctl_lock); 2437 STAILQ_FOREACH(port, &softc->port_list, links) { 2438 int action, done; 2439 2440 action = 0; 2441 done = 0; 2442 2443 if ((entry->port_type == CTL_PORT_NONE) 2444 && (entry->targ_port == port->targ_port)) { 2445 /* 2446 * If the user only wants to enable or 2447 * disable or set WWNs on a specific port, 2448 * do the operation and we're done. 2449 */ 2450 action = 1; 2451 done = 1; 2452 } else if (entry->port_type & port->port_type) { 2453 /* 2454 * Compare the user's type mask with the 2455 * particular frontend type to see if we 2456 * have a match. 2457 */ 2458 action = 1; 2459 done = 0; 2460 2461 /* 2462 * Make sure the user isn't trying to set 2463 * WWNs on multiple ports at the same time. 2464 */ 2465 if (cmd == CTL_SET_PORT_WWNS) { 2466 printf("%s: Can't set WWNs on " 2467 "multiple ports\n", __func__); 2468 retval = EINVAL; 2469 break; 2470 } 2471 } 2472 if (action != 0) { 2473 /* 2474 * XXX KDM we have to drop the lock here, 2475 * because the online/offline operations 2476 * can potentially block. We need to 2477 * reference count the frontends so they 2478 * can't go away, 2479 */ 2480 mtx_unlock(&softc->ctl_lock); 2481 2482 if (cmd == CTL_ENABLE_PORT) { 2483 struct ctl_lun *lun; 2484 2485 STAILQ_FOREACH(lun, &softc->lun_list, 2486 links) { 2487 port->lun_enable(port->targ_lun_arg, 2488 lun->target, 2489 lun->lun); 2490 } 2491 2492 ctl_port_online(port); 2493 } else if (cmd == CTL_DISABLE_PORT) { 2494 struct ctl_lun *lun; 2495 2496 ctl_port_offline(port); 2497 2498 STAILQ_FOREACH(lun, &softc->lun_list, 2499 links) { 2500 port->lun_disable( 2501 port->targ_lun_arg, 2502 lun->target, 2503 lun->lun); 2504 } 2505 } 2506 2507 mtx_lock(&softc->ctl_lock); 2508 2509 if (cmd == CTL_SET_PORT_WWNS) 2510 ctl_port_set_wwns(port, 2511 (entry->flags & CTL_PORT_WWNN_VALID) ? 2512 1 : 0, entry->wwnn, 2513 (entry->flags & CTL_PORT_WWPN_VALID) ? 2514 1 : 0, entry->wwpn); 2515 } 2516 if (done != 0) 2517 break; 2518 } 2519 mtx_unlock(&softc->ctl_lock); 2520 break; 2521 } 2522 case CTL_GET_PORT_LIST: { 2523 struct ctl_port *port; 2524 struct ctl_port_list *list; 2525 int i; 2526 2527 list = (struct ctl_port_list *)addr; 2528 2529 if (list->alloc_len != (list->alloc_num * 2530 sizeof(struct ctl_port_entry))) { 2531 printf("%s: CTL_GET_PORT_LIST: alloc_len %u != " 2532 "alloc_num %u * sizeof(struct ctl_port_entry) " 2533 "%zu\n", __func__, list->alloc_len, 2534 list->alloc_num, sizeof(struct ctl_port_entry)); 2535 retval = EINVAL; 2536 break; 2537 } 2538 list->fill_len = 0; 2539 list->fill_num = 0; 2540 list->dropped_num = 0; 2541 i = 0; 2542 mtx_lock(&softc->ctl_lock); 2543 STAILQ_FOREACH(port, &softc->port_list, links) { 2544 struct ctl_port_entry entry, *list_entry; 2545 2546 if (list->fill_num >= list->alloc_num) { 2547 list->dropped_num++; 2548 continue; 2549 } 2550 2551 entry.port_type = port->port_type; 2552 strlcpy(entry.port_name, port->port_name, 2553 sizeof(entry.port_name)); 2554 entry.targ_port = port->targ_port; 2555 entry.physical_port = port->physical_port; 2556 entry.virtual_port = port->virtual_port; 2557 entry.wwnn = port->wwnn; 2558 entry.wwpn = port->wwpn; 2559 if (port->status & CTL_PORT_STATUS_ONLINE) 2560 entry.online = 1; 2561 else 2562 entry.online = 0; 2563 2564 list_entry = &list->entries[i]; 2565 2566 retval = copyout(&entry, list_entry, sizeof(entry)); 2567 if (retval != 0) { 2568 printf("%s: CTL_GET_PORT_LIST: copyout " 2569 "returned %d\n", __func__, retval); 2570 break; 2571 } 2572 i++; 2573 list->fill_num++; 2574 list->fill_len += sizeof(entry); 2575 } 2576 mtx_unlock(&softc->ctl_lock); 2577 2578 /* 2579 * If this is non-zero, we had a copyout fault, so there's 2580 * probably no point in attempting to set the status inside 2581 * the structure. 2582 */ 2583 if (retval != 0) 2584 break; 2585 2586 if (list->dropped_num > 0) 2587 list->status = CTL_PORT_LIST_NEED_MORE_SPACE; 2588 else 2589 list->status = CTL_PORT_LIST_OK; 2590 break; 2591 } 2592 case CTL_DUMP_OOA: { 2593 struct ctl_lun *lun; 2594 union ctl_io *io; 2595 char printbuf[128]; 2596 struct sbuf sb; 2597 2598 mtx_lock(&softc->ctl_lock); 2599 printf("Dumping OOA queues:\n"); 2600 STAILQ_FOREACH(lun, &softc->lun_list, links) { 2601 mtx_lock(&lun->lun_lock); 2602 for (io = (union ctl_io *)TAILQ_FIRST( 2603 &lun->ooa_queue); io != NULL; 2604 io = (union ctl_io *)TAILQ_NEXT(&io->io_hdr, 2605 ooa_links)) { 2606 sbuf_new(&sb, printbuf, sizeof(printbuf), 2607 SBUF_FIXEDLEN); 2608 sbuf_printf(&sb, "LUN %jd tag 0x%04x%s%s%s%s: ", 2609 (intmax_t)lun->lun, 2610 io->scsiio.tag_num, 2611 (io->io_hdr.flags & 2612 CTL_FLAG_BLOCKED) ? "" : " BLOCKED", 2613 (io->io_hdr.flags & 2614 CTL_FLAG_DMA_INPROG) ? " DMA" : "", 2615 (io->io_hdr.flags & 2616 CTL_FLAG_ABORT) ? " ABORT" : "", 2617 (io->io_hdr.flags & 2618 CTL_FLAG_IS_WAS_ON_RTR) ? " RTR" : ""); 2619 ctl_scsi_command_string(&io->scsiio, NULL, &sb); 2620 sbuf_finish(&sb); 2621 printf("%s\n", sbuf_data(&sb)); 2622 } 2623 mtx_unlock(&lun->lun_lock); 2624 } 2625 printf("OOA queues dump done\n"); 2626 mtx_unlock(&softc->ctl_lock); 2627 break; 2628 } 2629 case CTL_GET_OOA: { 2630 struct ctl_lun *lun; 2631 struct ctl_ooa *ooa_hdr; 2632 struct ctl_ooa_entry *entries; 2633 uint32_t cur_fill_num; 2634 2635 ooa_hdr = (struct ctl_ooa *)addr; 2636 2637 if ((ooa_hdr->alloc_len == 0) 2638 || (ooa_hdr->alloc_num == 0)) { 2639 printf("%s: CTL_GET_OOA: alloc len %u and alloc num %u " 2640 "must be non-zero\n", __func__, 2641 ooa_hdr->alloc_len, ooa_hdr->alloc_num); 2642 retval = EINVAL; 2643 break; 2644 } 2645 2646 if (ooa_hdr->alloc_len != (ooa_hdr->alloc_num * 2647 sizeof(struct ctl_ooa_entry))) { 2648 printf("%s: CTL_GET_OOA: alloc len %u must be alloc " 2649 "num %d * sizeof(struct ctl_ooa_entry) %zd\n", 2650 __func__, ooa_hdr->alloc_len, 2651 ooa_hdr->alloc_num,sizeof(struct ctl_ooa_entry)); 2652 retval = EINVAL; 2653 break; 2654 } 2655 2656 entries = malloc(ooa_hdr->alloc_len, M_CTL, M_WAITOK | M_ZERO); 2657 if (entries == NULL) { 2658 printf("%s: could not allocate %d bytes for OOA " 2659 "dump\n", __func__, ooa_hdr->alloc_len); 2660 retval = ENOMEM; 2661 break; 2662 } 2663 2664 mtx_lock(&softc->ctl_lock); 2665 if (((ooa_hdr->flags & CTL_OOA_FLAG_ALL_LUNS) == 0) 2666 && ((ooa_hdr->lun_num >= CTL_MAX_LUNS) 2667 || (softc->ctl_luns[ooa_hdr->lun_num] == NULL))) { 2668 mtx_unlock(&softc->ctl_lock); 2669 free(entries, M_CTL); 2670 printf("%s: CTL_GET_OOA: invalid LUN %ju\n", 2671 __func__, (uintmax_t)ooa_hdr->lun_num); 2672 retval = EINVAL; 2673 break; 2674 } 2675 2676 cur_fill_num = 0; 2677 2678 if (ooa_hdr->flags & CTL_OOA_FLAG_ALL_LUNS) { 2679 STAILQ_FOREACH(lun, &softc->lun_list, links) { 2680 retval = ctl_ioctl_fill_ooa(lun, &cur_fill_num, 2681 ooa_hdr, entries); 2682 if (retval != 0) 2683 break; 2684 } 2685 if (retval != 0) { 2686 mtx_unlock(&softc->ctl_lock); 2687 free(entries, M_CTL); 2688 break; 2689 } 2690 } else { 2691 lun = softc->ctl_luns[ooa_hdr->lun_num]; 2692 2693 retval = ctl_ioctl_fill_ooa(lun, &cur_fill_num,ooa_hdr, 2694 entries); 2695 } 2696 mtx_unlock(&softc->ctl_lock); 2697 2698 ooa_hdr->fill_num = min(cur_fill_num, ooa_hdr->alloc_num); 2699 ooa_hdr->fill_len = ooa_hdr->fill_num * 2700 sizeof(struct ctl_ooa_entry); 2701 retval = copyout(entries, ooa_hdr->entries, ooa_hdr->fill_len); 2702 if (retval != 0) { 2703 printf("%s: error copying out %d bytes for OOA dump\n", 2704 __func__, ooa_hdr->fill_len); 2705 } 2706 2707 getbintime(&ooa_hdr->cur_bt); 2708 2709 if (cur_fill_num > ooa_hdr->alloc_num) { 2710 ooa_hdr->dropped_num = cur_fill_num -ooa_hdr->alloc_num; 2711 ooa_hdr->status = CTL_OOA_NEED_MORE_SPACE; 2712 } else { 2713 ooa_hdr->dropped_num = 0; 2714 ooa_hdr->status = CTL_OOA_OK; 2715 } 2716 2717 free(entries, M_CTL); 2718 break; 2719 } 2720 case CTL_CHECK_OOA: { 2721 union ctl_io *io; 2722 struct ctl_lun *lun; 2723 struct ctl_ooa_info *ooa_info; 2724 2725 2726 ooa_info = (struct ctl_ooa_info *)addr; 2727 2728 if (ooa_info->lun_id >= CTL_MAX_LUNS) { 2729 ooa_info->status = CTL_OOA_INVALID_LUN; 2730 break; 2731 } 2732 mtx_lock(&softc->ctl_lock); 2733 lun = softc->ctl_luns[ooa_info->lun_id]; 2734 if (lun == NULL) { 2735 mtx_unlock(&softc->ctl_lock); 2736 ooa_info->status = CTL_OOA_INVALID_LUN; 2737 break; 2738 } 2739 mtx_lock(&lun->lun_lock); 2740 mtx_unlock(&softc->ctl_lock); 2741 ooa_info->num_entries = 0; 2742 for (io = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); 2743 io != NULL; io = (union ctl_io *)TAILQ_NEXT( 2744 &io->io_hdr, ooa_links)) { 2745 ooa_info->num_entries++; 2746 } 2747 mtx_unlock(&lun->lun_lock); 2748 2749 ooa_info->status = CTL_OOA_SUCCESS; 2750 2751 break; 2752 } 2753 case CTL_HARD_START: 2754 case CTL_HARD_STOP: { 2755 struct ctl_fe_ioctl_startstop_info ss_info; 2756 struct cfi_metatask *metatask; 2757 struct mtx hs_mtx; 2758 2759 mtx_init(&hs_mtx, "HS Mutex", NULL, MTX_DEF); 2760 2761 cv_init(&ss_info.sem, "hard start/stop cv" ); 2762 2763 metatask = cfi_alloc_metatask(/*can_wait*/ 1); 2764 if (metatask == NULL) { 2765 retval = ENOMEM; 2766 mtx_destroy(&hs_mtx); 2767 break; 2768 } 2769 2770 if (cmd == CTL_HARD_START) 2771 metatask->tasktype = CFI_TASK_STARTUP; 2772 else 2773 metatask->tasktype = CFI_TASK_SHUTDOWN; 2774 2775 metatask->callback = ctl_ioctl_hard_startstop_callback; 2776 metatask->callback_arg = &ss_info; 2777 2778 cfi_action(metatask); 2779 2780 /* Wait for the callback */ 2781 mtx_lock(&hs_mtx); 2782 cv_wait_sig(&ss_info.sem, &hs_mtx); 2783 mtx_unlock(&hs_mtx); 2784 2785 /* 2786 * All information has been copied from the metatask by the 2787 * time cv_broadcast() is called, so we free the metatask here. 2788 */ 2789 cfi_free_metatask(metatask); 2790 2791 memcpy((void *)addr, &ss_info.hs_info, sizeof(ss_info.hs_info)); 2792 2793 mtx_destroy(&hs_mtx); 2794 break; 2795 } 2796 case CTL_BBRREAD: { 2797 struct ctl_bbrread_info *bbr_info; 2798 struct ctl_fe_ioctl_bbrread_info fe_bbr_info; 2799 struct mtx bbr_mtx; 2800 struct cfi_metatask *metatask; 2801 2802 bbr_info = (struct ctl_bbrread_info *)addr; 2803 2804 bzero(&fe_bbr_info, sizeof(fe_bbr_info)); 2805 2806 bzero(&bbr_mtx, sizeof(bbr_mtx)); 2807 mtx_init(&bbr_mtx, "BBR Mutex", NULL, MTX_DEF); 2808 2809 fe_bbr_info.bbr_info = bbr_info; 2810 fe_bbr_info.lock = &bbr_mtx; 2811 2812 cv_init(&fe_bbr_info.sem, "BBR read cv"); 2813 metatask = cfi_alloc_metatask(/*can_wait*/ 1); 2814 2815 if (metatask == NULL) { 2816 mtx_destroy(&bbr_mtx); 2817 cv_destroy(&fe_bbr_info.sem); 2818 retval = ENOMEM; 2819 break; 2820 } 2821 metatask->tasktype = CFI_TASK_BBRREAD; 2822 metatask->callback = ctl_ioctl_bbrread_callback; 2823 metatask->callback_arg = &fe_bbr_info; 2824 metatask->taskinfo.bbrread.lun_num = bbr_info->lun_num; 2825 metatask->taskinfo.bbrread.lba = bbr_info->lba; 2826 metatask->taskinfo.bbrread.len = bbr_info->len; 2827 2828 cfi_action(metatask); 2829 2830 mtx_lock(&bbr_mtx); 2831 while (fe_bbr_info.wakeup_done == 0) 2832 cv_wait_sig(&fe_bbr_info.sem, &bbr_mtx); 2833 mtx_unlock(&bbr_mtx); 2834 2835 bbr_info->status = metatask->status; 2836 bbr_info->bbr_status = metatask->taskinfo.bbrread.status; 2837 bbr_info->scsi_status = metatask->taskinfo.bbrread.scsi_status; 2838 memcpy(&bbr_info->sense_data, 2839 &metatask->taskinfo.bbrread.sense_data, 2840 MIN(sizeof(bbr_info->sense_data), 2841 sizeof(metatask->taskinfo.bbrread.sense_data))); 2842 2843 cfi_free_metatask(metatask); 2844 2845 mtx_destroy(&bbr_mtx); 2846 cv_destroy(&fe_bbr_info.sem); 2847 2848 break; 2849 } 2850 case CTL_DELAY_IO: { 2851 struct ctl_io_delay_info *delay_info; 2852#ifdef CTL_IO_DELAY 2853 struct ctl_lun *lun; 2854#endif /* CTL_IO_DELAY */ 2855 2856 delay_info = (struct ctl_io_delay_info *)addr; 2857 2858#ifdef CTL_IO_DELAY 2859 mtx_lock(&softc->ctl_lock); 2860 2861 if ((delay_info->lun_id >= CTL_MAX_LUNS) 2862 || (softc->ctl_luns[delay_info->lun_id] == NULL)) { 2863 delay_info->status = CTL_DELAY_STATUS_INVALID_LUN; 2864 } else { 2865 lun = softc->ctl_luns[delay_info->lun_id]; 2866 mtx_lock(&lun->lun_lock); 2867 2868 delay_info->status = CTL_DELAY_STATUS_OK; 2869 2870 switch (delay_info->delay_type) { 2871 case CTL_DELAY_TYPE_CONT: 2872 break; 2873 case CTL_DELAY_TYPE_ONESHOT: 2874 break; 2875 default: 2876 delay_info->status = 2877 CTL_DELAY_STATUS_INVALID_TYPE; 2878 break; 2879 } 2880 2881 switch (delay_info->delay_loc) { 2882 case CTL_DELAY_LOC_DATAMOVE: 2883 lun->delay_info.datamove_type = 2884 delay_info->delay_type; 2885 lun->delay_info.datamove_delay = 2886 delay_info->delay_secs; 2887 break; 2888 case CTL_DELAY_LOC_DONE: 2889 lun->delay_info.done_type = 2890 delay_info->delay_type; 2891 lun->delay_info.done_delay = 2892 delay_info->delay_secs; 2893 break; 2894 default: 2895 delay_info->status = 2896 CTL_DELAY_STATUS_INVALID_LOC; 2897 break; 2898 } 2899 mtx_unlock(&lun->lun_lock); 2900 } 2901 2902 mtx_unlock(&softc->ctl_lock); 2903#else 2904 delay_info->status = CTL_DELAY_STATUS_NOT_IMPLEMENTED; 2905#endif /* CTL_IO_DELAY */ 2906 break; 2907 } 2908 case CTL_REALSYNC_SET: { 2909 int *syncstate; 2910 2911 syncstate = (int *)addr; 2912 2913 mtx_lock(&softc->ctl_lock); 2914 switch (*syncstate) { 2915 case 0: 2916 softc->flags &= ~CTL_FLAG_REAL_SYNC; 2917 break; 2918 case 1: 2919 softc->flags |= CTL_FLAG_REAL_SYNC; 2920 break; 2921 default: 2922 retval = EINVAL; 2923 break; 2924 } 2925 mtx_unlock(&softc->ctl_lock); 2926 break; 2927 } 2928 case CTL_REALSYNC_GET: { 2929 int *syncstate; 2930 2931 syncstate = (int*)addr; 2932 2933 mtx_lock(&softc->ctl_lock); 2934 if (softc->flags & CTL_FLAG_REAL_SYNC) 2935 *syncstate = 1; 2936 else 2937 *syncstate = 0; 2938 mtx_unlock(&softc->ctl_lock); 2939 2940 break; 2941 } 2942 case CTL_SETSYNC: 2943 case CTL_GETSYNC: { 2944 struct ctl_sync_info *sync_info; 2945 struct ctl_lun *lun; 2946 2947 sync_info = (struct ctl_sync_info *)addr; 2948 2949 mtx_lock(&softc->ctl_lock); 2950 lun = softc->ctl_luns[sync_info->lun_id]; 2951 if (lun == NULL) { 2952 mtx_unlock(&softc->ctl_lock); 2953 sync_info->status = CTL_GS_SYNC_NO_LUN; 2954 } 2955 /* 2956 * Get or set the sync interval. We're not bounds checking 2957 * in the set case, hopefully the user won't do something 2958 * silly. 2959 */ 2960 mtx_lock(&lun->lun_lock); 2961 mtx_unlock(&softc->ctl_lock); 2962 if (cmd == CTL_GETSYNC) 2963 sync_info->sync_interval = lun->sync_interval; 2964 else 2965 lun->sync_interval = sync_info->sync_interval; 2966 mtx_unlock(&lun->lun_lock); 2967 2968 sync_info->status = CTL_GS_SYNC_OK; 2969 2970 break; 2971 } 2972 case CTL_GETSTATS: { 2973 struct ctl_stats *stats; 2974 struct ctl_lun *lun; 2975 int i; 2976 2977 stats = (struct ctl_stats *)addr; 2978 2979 if ((sizeof(struct ctl_lun_io_stats) * softc->num_luns) > 2980 stats->alloc_len) { 2981 stats->status = CTL_SS_NEED_MORE_SPACE; 2982 stats->num_luns = softc->num_luns; 2983 break; 2984 } 2985 /* 2986 * XXX KDM no locking here. If the LUN list changes, 2987 * things can blow up. 2988 */ 2989 for (i = 0, lun = STAILQ_FIRST(&softc->lun_list); lun != NULL; 2990 i++, lun = STAILQ_NEXT(lun, links)) { 2991 retval = copyout(&lun->stats, &stats->lun_stats[i], 2992 sizeof(lun->stats)); 2993 if (retval != 0) 2994 break; 2995 } 2996 stats->num_luns = softc->num_luns; 2997 stats->fill_len = sizeof(struct ctl_lun_io_stats) * 2998 softc->num_luns; 2999 stats->status = CTL_SS_OK; 3000#ifdef CTL_TIME_IO 3001 stats->flags = CTL_STATS_FLAG_TIME_VALID; 3002#else 3003 stats->flags = CTL_STATS_FLAG_NONE; 3004#endif 3005 getnanouptime(&stats->timestamp); 3006 break; 3007 } 3008 case CTL_ERROR_INJECT: { 3009 struct ctl_error_desc *err_desc, *new_err_desc; 3010 struct ctl_lun *lun; 3011 3012 err_desc = (struct ctl_error_desc *)addr; 3013 3014 new_err_desc = malloc(sizeof(*new_err_desc), M_CTL, 3015 M_WAITOK | M_ZERO); 3016 bcopy(err_desc, new_err_desc, sizeof(*new_err_desc)); 3017 3018 mtx_lock(&softc->ctl_lock); 3019 lun = softc->ctl_luns[err_desc->lun_id]; 3020 if (lun == NULL) { 3021 mtx_unlock(&softc->ctl_lock); 3022 free(new_err_desc, M_CTL); 3023 printf("%s: CTL_ERROR_INJECT: invalid LUN %ju\n", 3024 __func__, (uintmax_t)err_desc->lun_id); 3025 retval = EINVAL; 3026 break; 3027 } 3028 mtx_lock(&lun->lun_lock); 3029 mtx_unlock(&softc->ctl_lock); 3030 3031 /* 3032 * We could do some checking here to verify the validity 3033 * of the request, but given the complexity of error 3034 * injection requests, the checking logic would be fairly 3035 * complex. 3036 * 3037 * For now, if the request is invalid, it just won't get 3038 * executed and might get deleted. 3039 */ 3040 STAILQ_INSERT_TAIL(&lun->error_list, new_err_desc, links); 3041 3042 /* 3043 * XXX KDM check to make sure the serial number is unique, 3044 * in case we somehow manage to wrap. That shouldn't 3045 * happen for a very long time, but it's the right thing to 3046 * do. 3047 */ 3048 new_err_desc->serial = lun->error_serial; 3049 err_desc->serial = lun->error_serial; 3050 lun->error_serial++; 3051 3052 mtx_unlock(&lun->lun_lock); 3053 break; 3054 } 3055 case CTL_ERROR_INJECT_DELETE: { 3056 struct ctl_error_desc *delete_desc, *desc, *desc2; 3057 struct ctl_lun *lun; 3058 int delete_done; 3059 3060 delete_desc = (struct ctl_error_desc *)addr; 3061 delete_done = 0; 3062 3063 mtx_lock(&softc->ctl_lock); 3064 lun = softc->ctl_luns[delete_desc->lun_id]; 3065 if (lun == NULL) { 3066 mtx_unlock(&softc->ctl_lock); 3067 printf("%s: CTL_ERROR_INJECT_DELETE: invalid LUN %ju\n", 3068 __func__, (uintmax_t)delete_desc->lun_id); 3069 retval = EINVAL; 3070 break; 3071 } 3072 mtx_lock(&lun->lun_lock); 3073 mtx_unlock(&softc->ctl_lock); 3074 STAILQ_FOREACH_SAFE(desc, &lun->error_list, links, desc2) { 3075 if (desc->serial != delete_desc->serial) 3076 continue; 3077 3078 STAILQ_REMOVE(&lun->error_list, desc, ctl_error_desc, 3079 links); 3080 free(desc, M_CTL); 3081 delete_done = 1; 3082 } 3083 mtx_unlock(&lun->lun_lock); 3084 if (delete_done == 0) { 3085 printf("%s: CTL_ERROR_INJECT_DELETE: can't find " 3086 "error serial %ju on LUN %u\n", __func__, 3087 delete_desc->serial, delete_desc->lun_id); 3088 retval = EINVAL; 3089 break; 3090 } 3091 break; 3092 } 3093 case CTL_DUMP_STRUCTS: { 3094 int i, j, k; 3095 struct ctl_port *port; 3096 struct ctl_frontend *fe; 3097 3098 mtx_lock(&softc->ctl_lock); 3099 printf("CTL Persistent Reservation information start:\n"); 3100 for (i = 0; i < CTL_MAX_LUNS; i++) { 3101 struct ctl_lun *lun; 3102 3103 lun = softc->ctl_luns[i]; 3104 3105 if ((lun == NULL) 3106 || ((lun->flags & CTL_LUN_DISABLED) != 0)) 3107 continue; 3108 3109 for (j = 0; j < (CTL_MAX_PORTS * 2); j++) { 3110 if (lun->pr_keys[j] == NULL) 3111 continue; 3112 for (k = 0; k < CTL_MAX_INIT_PER_PORT; k++){ 3113 if (lun->pr_keys[j][k] == 0) 3114 continue; 3115 printf(" LUN %d port %d iid %d key " 3116 "%#jx\n", i, j, k, 3117 (uintmax_t)lun->pr_keys[j][k]); 3118 } 3119 } 3120 } 3121 printf("CTL Persistent Reservation information end\n"); 3122 printf("CTL Ports:\n"); 3123 STAILQ_FOREACH(port, &softc->port_list, links) { 3124 printf(" Port %d '%s' Frontend '%s' Type %u pp %d vp %d WWNN " 3125 "%#jx WWPN %#jx\n", port->targ_port, port->port_name, 3126 port->frontend->name, port->port_type, 3127 port->physical_port, port->virtual_port, 3128 (uintmax_t)port->wwnn, (uintmax_t)port->wwpn); 3129 for (j = 0; j < CTL_MAX_INIT_PER_PORT; j++) { 3130 if (port->wwpn_iid[j].in_use == 0 && 3131 port->wwpn_iid[j].wwpn == 0 && 3132 port->wwpn_iid[j].name == NULL) 3133 continue; 3134 3135 printf(" iid %u use %d WWPN %#jx '%s'\n", 3136 j, port->wwpn_iid[j].in_use, 3137 (uintmax_t)port->wwpn_iid[j].wwpn, 3138 port->wwpn_iid[j].name); 3139 } 3140 } 3141 printf("CTL Port information end\n"); 3142 mtx_unlock(&softc->ctl_lock); 3143 /* 3144 * XXX KDM calling this without a lock. We'd likely want 3145 * to drop the lock before calling the frontend's dump 3146 * routine anyway. 3147 */ 3148 printf("CTL Frontends:\n"); 3149 STAILQ_FOREACH(fe, &softc->fe_list, links) { 3150 printf(" Frontend '%s'\n", fe->name); 3151 if (fe->fe_dump != NULL) 3152 fe->fe_dump(); 3153 } 3154 printf("CTL Frontend information end\n"); 3155 break; 3156 } 3157 case CTL_LUN_REQ: { 3158 struct ctl_lun_req *lun_req; 3159 struct ctl_backend_driver *backend; 3160 3161 lun_req = (struct ctl_lun_req *)addr; 3162 3163 backend = ctl_backend_find(lun_req->backend); 3164 if (backend == NULL) { 3165 lun_req->status = CTL_LUN_ERROR; 3166 snprintf(lun_req->error_str, 3167 sizeof(lun_req->error_str), 3168 "Backend \"%s\" not found.", 3169 lun_req->backend); 3170 break; 3171 } 3172 if (lun_req->num_be_args > 0) { 3173 lun_req->kern_be_args = ctl_copyin_args( 3174 lun_req->num_be_args, 3175 lun_req->be_args, 3176 lun_req->error_str, 3177 sizeof(lun_req->error_str)); 3178 if (lun_req->kern_be_args == NULL) { 3179 lun_req->status = CTL_LUN_ERROR; 3180 break; 3181 } 3182 } 3183 3184 retval = backend->ioctl(dev, cmd, addr, flag, td); 3185 3186 if (lun_req->num_be_args > 0) { 3187 ctl_copyout_args(lun_req->num_be_args, 3188 lun_req->kern_be_args); 3189 ctl_free_args(lun_req->num_be_args, 3190 lun_req->kern_be_args); 3191 } 3192 break; 3193 } 3194 case CTL_LUN_LIST: { 3195 struct sbuf *sb; 3196 struct ctl_lun *lun; 3197 struct ctl_lun_list *list; 3198 struct ctl_option *opt; 3199 3200 list = (struct ctl_lun_list *)addr; 3201 3202 /* 3203 * Allocate a fixed length sbuf here, based on the length 3204 * of the user's buffer. We could allocate an auto-extending 3205 * buffer, and then tell the user how much larger our 3206 * amount of data is than his buffer, but that presents 3207 * some problems: 3208 * 3209 * 1. The sbuf(9) routines use a blocking malloc, and so 3210 * we can't hold a lock while calling them with an 3211 * auto-extending buffer. 3212 * 3213 * 2. There is not currently a LUN reference counting 3214 * mechanism, outside of outstanding transactions on 3215 * the LUN's OOA queue. So a LUN could go away on us 3216 * while we're getting the LUN number, backend-specific 3217 * information, etc. Thus, given the way things 3218 * currently work, we need to hold the CTL lock while 3219 * grabbing LUN information. 3220 * 3221 * So, from the user's standpoint, the best thing to do is 3222 * allocate what he thinks is a reasonable buffer length, 3223 * and then if he gets a CTL_LUN_LIST_NEED_MORE_SPACE error, 3224 * double the buffer length and try again. (And repeat 3225 * that until he succeeds.) 3226 */ 3227 sb = sbuf_new(NULL, NULL, list->alloc_len, SBUF_FIXEDLEN); 3228 if (sb == NULL) { 3229 list->status = CTL_LUN_LIST_ERROR; 3230 snprintf(list->error_str, sizeof(list->error_str), 3231 "Unable to allocate %d bytes for LUN list", 3232 list->alloc_len); 3233 break; 3234 } 3235 3236 sbuf_printf(sb, "<ctllunlist>\n"); 3237 3238 mtx_lock(&softc->ctl_lock); 3239 STAILQ_FOREACH(lun, &softc->lun_list, links) { 3240 mtx_lock(&lun->lun_lock); 3241 retval = sbuf_printf(sb, "<lun id=\"%ju\">\n", 3242 (uintmax_t)lun->lun); 3243 3244 /* 3245 * Bail out as soon as we see that we've overfilled 3246 * the buffer. 3247 */ 3248 if (retval != 0) 3249 break; 3250 3251 retval = sbuf_printf(sb, "\t<backend_type>%s" 3252 "</backend_type>\n", 3253 (lun->backend == NULL) ? "none" : 3254 lun->backend->name); 3255 3256 if (retval != 0) 3257 break; 3258 3259 retval = sbuf_printf(sb, "\t<lun_type>%d</lun_type>\n", 3260 lun->be_lun->lun_type); 3261 3262 if (retval != 0) 3263 break; 3264 3265 if (lun->backend == NULL) { 3266 retval = sbuf_printf(sb, "</lun>\n"); 3267 if (retval != 0) 3268 break; 3269 continue; 3270 } 3271 3272 retval = sbuf_printf(sb, "\t<size>%ju</size>\n", 3273 (lun->be_lun->maxlba > 0) ? 3274 lun->be_lun->maxlba + 1 : 0); 3275 3276 if (retval != 0) 3277 break; 3278 3279 retval = sbuf_printf(sb, "\t<blocksize>%u</blocksize>\n", 3280 lun->be_lun->blocksize); 3281 3282 if (retval != 0) 3283 break; 3284 3285 retval = sbuf_printf(sb, "\t<serial_number>"); 3286 3287 if (retval != 0) 3288 break; 3289 3290 retval = ctl_sbuf_printf_esc(sb, 3291 lun->be_lun->serial_num, 3292 sizeof(lun->be_lun->serial_num)); 3293 3294 if (retval != 0) 3295 break; 3296 3297 retval = sbuf_printf(sb, "</serial_number>\n"); 3298 3299 if (retval != 0) 3300 break; 3301 3302 retval = sbuf_printf(sb, "\t<device_id>"); 3303 3304 if (retval != 0) 3305 break; 3306 3307 retval = ctl_sbuf_printf_esc(sb, 3308 lun->be_lun->device_id, 3309 sizeof(lun->be_lun->device_id)); 3310 3311 if (retval != 0) 3312 break; 3313 3314 retval = sbuf_printf(sb, "</device_id>\n"); 3315 3316 if (retval != 0) 3317 break; 3318 3319 if (lun->backend->lun_info != NULL) { 3320 retval = lun->backend->lun_info(lun->be_lun->be_lun, sb); 3321 if (retval != 0) 3322 break; 3323 } 3324 STAILQ_FOREACH(opt, &lun->be_lun->options, links) { 3325 retval = sbuf_printf(sb, "\t<%s>%s</%s>\n", 3326 opt->name, opt->value, opt->name); 3327 if (retval != 0) 3328 break; 3329 } 3330 3331 retval = sbuf_printf(sb, "</lun>\n"); 3332 3333 if (retval != 0) 3334 break; 3335 mtx_unlock(&lun->lun_lock); 3336 } 3337 if (lun != NULL) 3338 mtx_unlock(&lun->lun_lock); 3339 mtx_unlock(&softc->ctl_lock); 3340 3341 if ((retval != 0) 3342 || ((retval = sbuf_printf(sb, "</ctllunlist>\n")) != 0)) { 3343 retval = 0; 3344 sbuf_delete(sb); 3345 list->status = CTL_LUN_LIST_NEED_MORE_SPACE; 3346 snprintf(list->error_str, sizeof(list->error_str), 3347 "Out of space, %d bytes is too small", 3348 list->alloc_len); 3349 break; 3350 } 3351 3352 sbuf_finish(sb); 3353 3354 retval = copyout(sbuf_data(sb), list->lun_xml, 3355 sbuf_len(sb) + 1); 3356 3357 list->fill_len = sbuf_len(sb) + 1; 3358 list->status = CTL_LUN_LIST_OK; 3359 sbuf_delete(sb); 3360 break; 3361 } 3362 case CTL_ISCSI: { 3363 struct ctl_iscsi *ci; 3364 struct ctl_frontend *fe; 3365 3366 ci = (struct ctl_iscsi *)addr; 3367 3368 fe = ctl_frontend_find("iscsi"); 3369 if (fe == NULL) { 3370 ci->status = CTL_ISCSI_ERROR; 3371 snprintf(ci->error_str, sizeof(ci->error_str), 3372 "Frontend \"iscsi\" not found."); 3373 break; 3374 } 3375 3376 retval = fe->ioctl(dev, cmd, addr, flag, td); 3377 break; 3378 } 3379 case CTL_PORT_REQ: { 3380 struct ctl_req *req; 3381 struct ctl_frontend *fe; 3382 3383 req = (struct ctl_req *)addr; 3384 3385 fe = ctl_frontend_find(req->driver); 3386 if (fe == NULL) { 3387 req->status = CTL_LUN_ERROR; 3388 snprintf(req->error_str, sizeof(req->error_str), 3389 "Frontend \"%s\" not found.", req->driver); 3390 break; 3391 } 3392 if (req->num_args > 0) { 3393 req->kern_args = ctl_copyin_args(req->num_args, 3394 req->args, req->error_str, sizeof(req->error_str)); 3395 if (req->kern_args == NULL) { 3396 req->status = CTL_LUN_ERROR; 3397 break; 3398 } 3399 } 3400 3401 retval = fe->ioctl(dev, cmd, addr, flag, td); 3402 3403 if (req->num_args > 0) { 3404 ctl_copyout_args(req->num_args, req->kern_args); 3405 ctl_free_args(req->num_args, req->kern_args); 3406 } 3407 break; 3408 } 3409 case CTL_PORT_LIST: { 3410 struct sbuf *sb; 3411 struct ctl_port *port; 3412 struct ctl_lun_list *list; 3413 struct ctl_option *opt; 3414 int j; 3415 uint32_t plun; 3416 3417 list = (struct ctl_lun_list *)addr; 3418 3419 sb = sbuf_new(NULL, NULL, list->alloc_len, SBUF_FIXEDLEN); 3420 if (sb == NULL) { 3421 list->status = CTL_LUN_LIST_ERROR; 3422 snprintf(list->error_str, sizeof(list->error_str), 3423 "Unable to allocate %d bytes for LUN list", 3424 list->alloc_len); 3425 break; 3426 } 3427 3428 sbuf_printf(sb, "<ctlportlist>\n"); 3429 3430 mtx_lock(&softc->ctl_lock); 3431 STAILQ_FOREACH(port, &softc->port_list, links) { 3432 retval = sbuf_printf(sb, "<targ_port id=\"%ju\">\n", 3433 (uintmax_t)port->targ_port); 3434 3435 /* 3436 * Bail out as soon as we see that we've overfilled 3437 * the buffer. 3438 */ 3439 if (retval != 0) 3440 break; 3441 3442 retval = sbuf_printf(sb, "\t<frontend_type>%s" 3443 "</frontend_type>\n", port->frontend->name); 3444 if (retval != 0) 3445 break; 3446 3447 retval = sbuf_printf(sb, "\t<port_type>%d</port_type>\n", 3448 port->port_type); 3449 if (retval != 0) 3450 break; 3451 3452 retval = sbuf_printf(sb, "\t<online>%s</online>\n", 3453 (port->status & CTL_PORT_STATUS_ONLINE) ? "YES" : "NO"); 3454 if (retval != 0) 3455 break; 3456 3457 retval = sbuf_printf(sb, "\t<port_name>%s</port_name>\n", 3458 port->port_name); 3459 if (retval != 0) 3460 break; 3461 3462 retval = sbuf_printf(sb, "\t<physical_port>%d</physical_port>\n", 3463 port->physical_port); 3464 if (retval != 0) 3465 break; 3466 3467 retval = sbuf_printf(sb, "\t<virtual_port>%d</virtual_port>\n", 3468 port->virtual_port); 3469 if (retval != 0) 3470 break; 3471 3472 if (port->target_devid != NULL) { 3473 sbuf_printf(sb, "\t<target>"); 3474 ctl_id_sbuf(port->target_devid, sb); 3475 sbuf_printf(sb, "</target>\n"); 3476 } 3477 3478 if (port->port_devid != NULL) { 3479 sbuf_printf(sb, "\t<port>"); 3480 ctl_id_sbuf(port->port_devid, sb); 3481 sbuf_printf(sb, "</port>\n"); 3482 } 3483 3484 if (port->port_info != NULL) { 3485 retval = port->port_info(port->onoff_arg, sb); 3486 if (retval != 0) 3487 break; 3488 } 3489 STAILQ_FOREACH(opt, &port->options, links) { 3490 retval = sbuf_printf(sb, "\t<%s>%s</%s>\n", 3491 opt->name, opt->value, opt->name); 3492 if (retval != 0) 3493 break; 3494 } 3495 3496 if (port->lun_map != NULL) { 3497 sbuf_printf(sb, "\t<lun_map>on</lun_map>\n"); 3498 for (j = 0; j < CTL_MAX_LUNS; j++) { 3499 plun = ctl_lun_map_from_port(port, j); 3500 if (plun >= CTL_MAX_LUNS) 3501 continue; 3502 sbuf_printf(sb, 3503 "\t<lun id=\"%u\">%u</lun>\n", 3504 j, plun); 3505 } 3506 } 3507 3508 for (j = 0; j < CTL_MAX_INIT_PER_PORT; j++) { 3509 if (port->wwpn_iid[j].in_use == 0 || 3510 (port->wwpn_iid[j].wwpn == 0 && 3511 port->wwpn_iid[j].name == NULL)) 3512 continue; 3513 3514 if (port->wwpn_iid[j].name != NULL) 3515 retval = sbuf_printf(sb, 3516 "\t<initiator id=\"%u\">%s</initiator>\n", 3517 j, port->wwpn_iid[j].name); 3518 else 3519 retval = sbuf_printf(sb, 3520 "\t<initiator id=\"%u\">naa.%08jx</initiator>\n", 3521 j, port->wwpn_iid[j].wwpn); 3522 if (retval != 0) 3523 break; 3524 } 3525 if (retval != 0) 3526 break; 3527 3528 retval = sbuf_printf(sb, "</targ_port>\n"); 3529 if (retval != 0) 3530 break; 3531 } 3532 mtx_unlock(&softc->ctl_lock); 3533 3534 if ((retval != 0) 3535 || ((retval = sbuf_printf(sb, "</ctlportlist>\n")) != 0)) { 3536 retval = 0; 3537 sbuf_delete(sb); 3538 list->status = CTL_LUN_LIST_NEED_MORE_SPACE; 3539 snprintf(list->error_str, sizeof(list->error_str), 3540 "Out of space, %d bytes is too small", 3541 list->alloc_len); 3542 break; 3543 } 3544 3545 sbuf_finish(sb); 3546 3547 retval = copyout(sbuf_data(sb), list->lun_xml, 3548 sbuf_len(sb) + 1); 3549 3550 list->fill_len = sbuf_len(sb) + 1; 3551 list->status = CTL_LUN_LIST_OK; 3552 sbuf_delete(sb); 3553 break; 3554 } 3555 case CTL_LUN_MAP: { 3556 struct ctl_lun_map *lm = (struct ctl_lun_map *)addr; 3557 struct ctl_port *port; 3558 3559 mtx_lock(&softc->ctl_lock); 3560 if (lm->port >= CTL_MAX_PORTS || 3561 (port = softc->ctl_ports[lm->port]) == NULL) { 3562 mtx_unlock(&softc->ctl_lock); 3563 return (ENXIO); 3564 } 3565 if (lm->plun < CTL_MAX_LUNS) { 3566 if (lm->lun == UINT32_MAX) 3567 retval = ctl_lun_map_unset(port, lm->plun); 3568 else if (lm->lun < CTL_MAX_LUNS && 3569 softc->ctl_luns[lm->lun] != NULL) 3570 retval = ctl_lun_map_set(port, lm->plun, lm->lun); 3571 else { 3572 mtx_unlock(&softc->ctl_lock); 3573 return (ENXIO); 3574 } 3575 } else if (lm->plun == UINT32_MAX) { 3576 if (lm->lun == UINT32_MAX) 3577 retval = ctl_lun_map_deinit(port); 3578 else 3579 retval = ctl_lun_map_init(port); 3580 } else { 3581 mtx_unlock(&softc->ctl_lock); 3582 return (ENXIO); 3583 } 3584 mtx_unlock(&softc->ctl_lock); 3585 break; 3586 } 3587 default: { 3588 /* XXX KDM should we fix this? */ 3589#if 0 3590 struct ctl_backend_driver *backend; 3591 unsigned int type; 3592 int found; 3593 3594 found = 0; 3595 3596 /* 3597 * We encode the backend type as the ioctl type for backend 3598 * ioctls. So parse it out here, and then search for a 3599 * backend of this type. 3600 */ 3601 type = _IOC_TYPE(cmd); 3602 3603 STAILQ_FOREACH(backend, &softc->be_list, links) { 3604 if (backend->type == type) { 3605 found = 1; 3606 break; 3607 } 3608 } 3609 if (found == 0) { 3610 printf("ctl: unknown ioctl command %#lx or backend " 3611 "%d\n", cmd, type); 3612 retval = EINVAL; 3613 break; 3614 } 3615 retval = backend->ioctl(dev, cmd, addr, flag, td); 3616#endif 3617 retval = ENOTTY; 3618 break; 3619 } 3620 } 3621 return (retval); 3622} 3623 3624uint32_t 3625ctl_get_initindex(struct ctl_nexus *nexus) 3626{ 3627 if (nexus->targ_port < CTL_MAX_PORTS) 3628 return (nexus->initid.id + 3629 (nexus->targ_port * CTL_MAX_INIT_PER_PORT)); 3630 else 3631 return (nexus->initid.id + 3632 ((nexus->targ_port - CTL_MAX_PORTS) * 3633 CTL_MAX_INIT_PER_PORT)); 3634} 3635 3636uint32_t 3637ctl_get_resindex(struct ctl_nexus *nexus) 3638{ 3639 return (nexus->initid.id + (nexus->targ_port * CTL_MAX_INIT_PER_PORT)); 3640} 3641 3642uint32_t 3643ctl_port_idx(int port_num) 3644{ 3645 if (port_num < CTL_MAX_PORTS) 3646 return(port_num); 3647 else 3648 return(port_num - CTL_MAX_PORTS); 3649} 3650 3651int 3652ctl_lun_map_init(struct ctl_port *port) 3653{ 3654 uint32_t i; 3655 3656 if (port->lun_map == NULL) 3657 port->lun_map = malloc(sizeof(uint32_t) * CTL_MAX_LUNS, 3658 M_CTL, M_NOWAIT); 3659 if (port->lun_map == NULL) 3660 return (ENOMEM); 3661 for (i = 0; i < CTL_MAX_LUNS; i++) 3662 port->lun_map[i] = UINT32_MAX; 3663 return (0); 3664} 3665 3666int 3667ctl_lun_map_deinit(struct ctl_port *port) 3668{ 3669 3670 if (port->lun_map == NULL) 3671 return (0); 3672 free(port->lun_map, M_CTL); 3673 port->lun_map = NULL; 3674 return (0); 3675} 3676 3677int 3678ctl_lun_map_set(struct ctl_port *port, uint32_t plun, uint32_t glun) 3679{ 3680 int status; 3681 3682 if (port->lun_map == NULL) { 3683 status = ctl_lun_map_init(port); 3684 if (status != 0) 3685 return (status); 3686 } 3687 port->lun_map[plun] = glun; 3688 return (0); 3689} 3690 3691int 3692ctl_lun_map_unset(struct ctl_port *port, uint32_t plun) 3693{ 3694 3695 if (port->lun_map == NULL) 3696 return (0); 3697 port->lun_map[plun] = UINT32_MAX; 3698 return (0); 3699} 3700 3701int 3702ctl_lun_map_unsetg(struct ctl_port *port, uint32_t glun) 3703{ 3704 int i; 3705 3706 if (port->lun_map == NULL) 3707 return (0); 3708 for (i = 0; i < CTL_MAX_LUNS; i++) { 3709 if (port->lun_map[i] == glun) 3710 port->lun_map[i] = UINT32_MAX; 3711 } 3712 return (0); 3713} 3714 3715uint32_t 3716ctl_lun_map_from_port(struct ctl_port *port, uint32_t lun_id) 3717{ 3718 3719 if (port == NULL) 3720 return (UINT32_MAX); 3721 if (port->lun_map == NULL || lun_id >= CTL_MAX_LUNS) 3722 return (lun_id); 3723 return (port->lun_map[lun_id]); 3724} 3725 3726uint32_t 3727ctl_lun_map_to_port(struct ctl_port *port, uint32_t lun_id) 3728{ 3729 uint32_t i; 3730 3731 if (port == NULL) 3732 return (UINT32_MAX); 3733 if (port->lun_map == NULL) 3734 return (lun_id); 3735 for (i = 0; i < CTL_MAX_LUNS; i++) { 3736 if (port->lun_map[i] == lun_id) 3737 return (i); 3738 } 3739 return (UINT32_MAX); 3740} 3741 3742static struct ctl_port * 3743ctl_io_port(struct ctl_io_hdr *io_hdr) 3744{ 3745 int port_num; 3746 3747 port_num = io_hdr->nexus.targ_port; 3748 return (control_softc->ctl_ports[ctl_port_idx(port_num)]); 3749} 3750 3751/* 3752 * Note: This only works for bitmask sizes that are at least 32 bits, and 3753 * that are a power of 2. 3754 */ 3755int 3756ctl_ffz(uint32_t *mask, uint32_t size) 3757{ 3758 uint32_t num_chunks, num_pieces; 3759 int i, j; 3760 3761 num_chunks = (size >> 5); 3762 if (num_chunks == 0) 3763 num_chunks++; 3764 num_pieces = MIN((sizeof(uint32_t) * 8), size); 3765 3766 for (i = 0; i < num_chunks; i++) { 3767 for (j = 0; j < num_pieces; j++) { 3768 if ((mask[i] & (1 << j)) == 0) 3769 return ((i << 5) + j); 3770 } 3771 } 3772 3773 return (-1); 3774} 3775 3776int 3777ctl_set_mask(uint32_t *mask, uint32_t bit) 3778{ 3779 uint32_t chunk, piece; 3780 3781 chunk = bit >> 5; 3782 piece = bit % (sizeof(uint32_t) * 8); 3783 3784 if ((mask[chunk] & (1 << piece)) != 0) 3785 return (-1); 3786 else 3787 mask[chunk] |= (1 << piece); 3788 3789 return (0); 3790} 3791 3792int 3793ctl_clear_mask(uint32_t *mask, uint32_t bit) 3794{ 3795 uint32_t chunk, piece; 3796 3797 chunk = bit >> 5; 3798 piece = bit % (sizeof(uint32_t) * 8); 3799 3800 if ((mask[chunk] & (1 << piece)) == 0) 3801 return (-1); 3802 else 3803 mask[chunk] &= ~(1 << piece); 3804 3805 return (0); 3806} 3807 3808int 3809ctl_is_set(uint32_t *mask, uint32_t bit) 3810{ 3811 uint32_t chunk, piece; 3812 3813 chunk = bit >> 5; 3814 piece = bit % (sizeof(uint32_t) * 8); 3815 3816 if ((mask[chunk] & (1 << piece)) == 0) 3817 return (0); 3818 else 3819 return (1); 3820} 3821 3822static uint64_t 3823ctl_get_prkey(struct ctl_lun *lun, uint32_t residx) 3824{ 3825 uint64_t *t; 3826 3827 t = lun->pr_keys[residx/CTL_MAX_INIT_PER_PORT]; 3828 if (t == NULL) 3829 return (0); 3830 return (t[residx % CTL_MAX_INIT_PER_PORT]); 3831} 3832 3833static void 3834ctl_clr_prkey(struct ctl_lun *lun, uint32_t residx) 3835{ 3836 uint64_t *t; 3837 3838 t = lun->pr_keys[residx/CTL_MAX_INIT_PER_PORT]; 3839 if (t == NULL) 3840 return; 3841 t[residx % CTL_MAX_INIT_PER_PORT] = 0; 3842} 3843 3844static void 3845ctl_alloc_prkey(struct ctl_lun *lun, uint32_t residx) 3846{ 3847 uint64_t *p; 3848 u_int i; 3849 3850 i = residx/CTL_MAX_INIT_PER_PORT; 3851 if (lun->pr_keys[i] != NULL) 3852 return; 3853 mtx_unlock(&lun->lun_lock); 3854 p = malloc(sizeof(uint64_t) * CTL_MAX_INIT_PER_PORT, M_CTL, 3855 M_WAITOK | M_ZERO); 3856 mtx_lock(&lun->lun_lock); 3857 if (lun->pr_keys[i] == NULL) 3858 lun->pr_keys[i] = p; 3859 else 3860 free(p, M_CTL); 3861} 3862 3863static void 3864ctl_set_prkey(struct ctl_lun *lun, uint32_t residx, uint64_t key) 3865{ 3866 uint64_t *t; 3867 3868 t = lun->pr_keys[residx/CTL_MAX_INIT_PER_PORT]; 3869 KASSERT(t != NULL, ("prkey %d is not allocated", residx)); 3870 t[residx % CTL_MAX_INIT_PER_PORT] = key; 3871} 3872 3873/* 3874 * ctl_softc, pool_name, total_ctl_io are passed in. 3875 * npool is passed out. 3876 */ 3877int 3878ctl_pool_create(struct ctl_softc *ctl_softc, const char *pool_name, 3879 uint32_t total_ctl_io, void **npool) 3880{ 3881#ifdef IO_POOLS 3882 struct ctl_io_pool *pool; 3883 3884 pool = (struct ctl_io_pool *)malloc(sizeof(*pool), M_CTL, 3885 M_NOWAIT | M_ZERO); 3886 if (pool == NULL) 3887 return (ENOMEM); 3888 3889 snprintf(pool->name, sizeof(pool->name), "CTL IO %s", pool_name); 3890 pool->ctl_softc = ctl_softc; 3891 pool->zone = uma_zsecond_create(pool->name, NULL, 3892 NULL, NULL, NULL, ctl_softc->io_zone); 3893 /* uma_prealloc(pool->zone, total_ctl_io); */ 3894 3895 *npool = pool; 3896#else 3897 *npool = ctl_softc->io_zone; 3898#endif 3899 return (0); 3900} 3901 3902void 3903ctl_pool_free(struct ctl_io_pool *pool) 3904{ 3905 3906 if (pool == NULL) 3907 return; 3908 3909#ifdef IO_POOLS 3910 uma_zdestroy(pool->zone); 3911 free(pool, M_CTL); 3912#endif 3913} 3914 3915union ctl_io * 3916ctl_alloc_io(void *pool_ref) 3917{ 3918 union ctl_io *io; 3919#ifdef IO_POOLS 3920 struct ctl_io_pool *pool = (struct ctl_io_pool *)pool_ref; 3921 3922 io = uma_zalloc(pool->zone, M_WAITOK); 3923#else 3924 io = uma_zalloc((uma_zone_t)pool_ref, M_WAITOK); 3925#endif 3926 if (io != NULL) 3927 io->io_hdr.pool = pool_ref; 3928 return (io); 3929} 3930 3931union ctl_io * 3932ctl_alloc_io_nowait(void *pool_ref) 3933{ 3934 union ctl_io *io; 3935#ifdef IO_POOLS 3936 struct ctl_io_pool *pool = (struct ctl_io_pool *)pool_ref; 3937 3938 io = uma_zalloc(pool->zone, M_NOWAIT); 3939#else 3940 io = uma_zalloc((uma_zone_t)pool_ref, M_NOWAIT); 3941#endif 3942 if (io != NULL) 3943 io->io_hdr.pool = pool_ref; 3944 return (io); 3945} 3946 3947void 3948ctl_free_io(union ctl_io *io) 3949{ 3950#ifdef IO_POOLS 3951 struct ctl_io_pool *pool; 3952#endif 3953 3954 if (io == NULL) 3955 return; 3956 3957#ifdef IO_POOLS 3958 pool = (struct ctl_io_pool *)io->io_hdr.pool; 3959 uma_zfree(pool->zone, io); 3960#else 3961 uma_zfree((uma_zone_t)io->io_hdr.pool, io); 3962#endif 3963} 3964 3965void 3966ctl_zero_io(union ctl_io *io) 3967{ 3968 void *pool_ref; 3969 3970 if (io == NULL) 3971 return; 3972 3973 /* 3974 * May need to preserve linked list pointers at some point too. 3975 */ 3976 pool_ref = io->io_hdr.pool; 3977 memset(io, 0, sizeof(*io)); 3978 io->io_hdr.pool = pool_ref; 3979} 3980 3981/* 3982 * This routine is currently used for internal copies of ctl_ios that need 3983 * to persist for some reason after we've already returned status to the 3984 * FETD. (Thus the flag set.) 3985 * 3986 * XXX XXX 3987 * Note that this makes a blind copy of all fields in the ctl_io, except 3988 * for the pool reference. This includes any memory that has been 3989 * allocated! That memory will no longer be valid after done has been 3990 * called, so this would be VERY DANGEROUS for command that actually does 3991 * any reads or writes. Right now (11/7/2005), this is only used for immediate 3992 * start and stop commands, which don't transfer any data, so this is not a 3993 * problem. If it is used for anything else, the caller would also need to 3994 * allocate data buffer space and this routine would need to be modified to 3995 * copy the data buffer(s) as well. 3996 */ 3997void 3998ctl_copy_io(union ctl_io *src, union ctl_io *dest) 3999{ 4000 void *pool_ref; 4001 4002 if ((src == NULL) 4003 || (dest == NULL)) 4004 return; 4005 4006 /* 4007 * May need to preserve linked list pointers at some point too. 4008 */ 4009 pool_ref = dest->io_hdr.pool; 4010 4011 memcpy(dest, src, MIN(sizeof(*src), sizeof(*dest))); 4012 4013 dest->io_hdr.pool = pool_ref; 4014 /* 4015 * We need to know that this is an internal copy, and doesn't need 4016 * to get passed back to the FETD that allocated it. 4017 */ 4018 dest->io_hdr.flags |= CTL_FLAG_INT_COPY; 4019} 4020 4021int 4022ctl_expand_number(const char *buf, uint64_t *num) 4023{ 4024 char *endptr; 4025 uint64_t number; 4026 unsigned shift; 4027 4028 number = strtoq(buf, &endptr, 0); 4029 4030 switch (tolower((unsigned char)*endptr)) { 4031 case 'e': 4032 shift = 60; 4033 break; 4034 case 'p': 4035 shift = 50; 4036 break; 4037 case 't': 4038 shift = 40; 4039 break; 4040 case 'g': 4041 shift = 30; 4042 break; 4043 case 'm': 4044 shift = 20; 4045 break; 4046 case 'k': 4047 shift = 10; 4048 break; 4049 case 'b': 4050 case '\0': /* No unit. */ 4051 *num = number; 4052 return (0); 4053 default: 4054 /* Unrecognized unit. */ 4055 return (-1); 4056 } 4057 4058 if ((number << shift) >> shift != number) { 4059 /* Overflow */ 4060 return (-1); 4061 } 4062 *num = number << shift; 4063 return (0); 4064} 4065 4066 4067/* 4068 * This routine could be used in the future to load default and/or saved 4069 * mode page parameters for a particuar lun. 4070 */ 4071static int 4072ctl_init_page_index(struct ctl_lun *lun) 4073{ 4074 int i; 4075 struct ctl_page_index *page_index; 4076 const char *value; 4077 uint64_t ival; 4078 4079 memcpy(&lun->mode_pages.index, page_index_template, 4080 sizeof(page_index_template)); 4081 4082 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 4083 4084 page_index = &lun->mode_pages.index[i]; 4085 /* 4086 * If this is a disk-only mode page, there's no point in 4087 * setting it up. For some pages, we have to have some 4088 * basic information about the disk in order to calculate the 4089 * mode page data. 4090 */ 4091 if ((lun->be_lun->lun_type != T_DIRECT) 4092 && (page_index->page_flags & CTL_PAGE_FLAG_DISK_ONLY)) 4093 continue; 4094 4095 switch (page_index->page_code & SMPH_PC_MASK) { 4096 case SMS_RW_ERROR_RECOVERY_PAGE: { 4097 if (page_index->subpage != SMS_SUBPAGE_PAGE_0) 4098 panic("subpage is incorrect!"); 4099 memcpy(&lun->mode_pages.rw_er_page[CTL_PAGE_CURRENT], 4100 &rw_er_page_default, 4101 sizeof(rw_er_page_default)); 4102 memcpy(&lun->mode_pages.rw_er_page[CTL_PAGE_CHANGEABLE], 4103 &rw_er_page_changeable, 4104 sizeof(rw_er_page_changeable)); 4105 memcpy(&lun->mode_pages.rw_er_page[CTL_PAGE_DEFAULT], 4106 &rw_er_page_default, 4107 sizeof(rw_er_page_default)); 4108 memcpy(&lun->mode_pages.rw_er_page[CTL_PAGE_SAVED], 4109 &rw_er_page_default, 4110 sizeof(rw_er_page_default)); 4111 page_index->page_data = 4112 (uint8_t *)lun->mode_pages.rw_er_page; 4113 break; 4114 } 4115 case SMS_FORMAT_DEVICE_PAGE: { 4116 struct scsi_format_page *format_page; 4117 4118 if (page_index->subpage != SMS_SUBPAGE_PAGE_0) 4119 panic("subpage is incorrect!"); 4120 4121 /* 4122 * Sectors per track are set above. Bytes per 4123 * sector need to be set here on a per-LUN basis. 4124 */ 4125 memcpy(&lun->mode_pages.format_page[CTL_PAGE_CURRENT], 4126 &format_page_default, 4127 sizeof(format_page_default)); 4128 memcpy(&lun->mode_pages.format_page[ 4129 CTL_PAGE_CHANGEABLE], &format_page_changeable, 4130 sizeof(format_page_changeable)); 4131 memcpy(&lun->mode_pages.format_page[CTL_PAGE_DEFAULT], 4132 &format_page_default, 4133 sizeof(format_page_default)); 4134 memcpy(&lun->mode_pages.format_page[CTL_PAGE_SAVED], 4135 &format_page_default, 4136 sizeof(format_page_default)); 4137 4138 format_page = &lun->mode_pages.format_page[ 4139 CTL_PAGE_CURRENT]; 4140 scsi_ulto2b(lun->be_lun->blocksize, 4141 format_page->bytes_per_sector); 4142 4143 format_page = &lun->mode_pages.format_page[ 4144 CTL_PAGE_DEFAULT]; 4145 scsi_ulto2b(lun->be_lun->blocksize, 4146 format_page->bytes_per_sector); 4147 4148 format_page = &lun->mode_pages.format_page[ 4149 CTL_PAGE_SAVED]; 4150 scsi_ulto2b(lun->be_lun->blocksize, 4151 format_page->bytes_per_sector); 4152 4153 page_index->page_data = 4154 (uint8_t *)lun->mode_pages.format_page; 4155 break; 4156 } 4157 case SMS_RIGID_DISK_PAGE: { 4158 struct scsi_rigid_disk_page *rigid_disk_page; 4159 uint32_t sectors_per_cylinder; 4160 uint64_t cylinders; 4161#ifndef __XSCALE__ 4162 int shift; 4163#endif /* !__XSCALE__ */ 4164 4165 if (page_index->subpage != SMS_SUBPAGE_PAGE_0) 4166 panic("invalid subpage value %d", 4167 page_index->subpage); 4168 4169 /* 4170 * Rotation rate and sectors per track are set 4171 * above. We calculate the cylinders here based on 4172 * capacity. Due to the number of heads and 4173 * sectors per track we're using, smaller arrays 4174 * may turn out to have 0 cylinders. Linux and 4175 * FreeBSD don't pay attention to these mode pages 4176 * to figure out capacity, but Solaris does. It 4177 * seems to deal with 0 cylinders just fine, and 4178 * works out a fake geometry based on the capacity. 4179 */ 4180 memcpy(&lun->mode_pages.rigid_disk_page[ 4181 CTL_PAGE_DEFAULT], &rigid_disk_page_default, 4182 sizeof(rigid_disk_page_default)); 4183 memcpy(&lun->mode_pages.rigid_disk_page[ 4184 CTL_PAGE_CHANGEABLE],&rigid_disk_page_changeable, 4185 sizeof(rigid_disk_page_changeable)); 4186 4187 sectors_per_cylinder = CTL_DEFAULT_SECTORS_PER_TRACK * 4188 CTL_DEFAULT_HEADS; 4189 4190 /* 4191 * The divide method here will be more accurate, 4192 * probably, but results in floating point being 4193 * used in the kernel on i386 (__udivdi3()). On the 4194 * XScale, though, __udivdi3() is implemented in 4195 * software. 4196 * 4197 * The shift method for cylinder calculation is 4198 * accurate if sectors_per_cylinder is a power of 4199 * 2. Otherwise it might be slightly off -- you 4200 * might have a bit of a truncation problem. 4201 */ 4202#ifdef __XSCALE__ 4203 cylinders = (lun->be_lun->maxlba + 1) / 4204 sectors_per_cylinder; 4205#else 4206 for (shift = 31; shift > 0; shift--) { 4207 if (sectors_per_cylinder & (1 << shift)) 4208 break; 4209 } 4210 cylinders = (lun->be_lun->maxlba + 1) >> shift; 4211#endif 4212 4213 /* 4214 * We've basically got 3 bytes, or 24 bits for the 4215 * cylinder size in the mode page. If we're over, 4216 * just round down to 2^24. 4217 */ 4218 if (cylinders > 0xffffff) 4219 cylinders = 0xffffff; 4220 4221 rigid_disk_page = &lun->mode_pages.rigid_disk_page[ 4222 CTL_PAGE_DEFAULT]; 4223 scsi_ulto3b(cylinders, rigid_disk_page->cylinders); 4224 4225 if ((value = ctl_get_opt(&lun->be_lun->options, 4226 "rpm")) != NULL) { 4227 scsi_ulto2b(strtol(value, NULL, 0), 4228 rigid_disk_page->rotation_rate); 4229 } 4230 4231 memcpy(&lun->mode_pages.rigid_disk_page[CTL_PAGE_CURRENT], 4232 &lun->mode_pages.rigid_disk_page[CTL_PAGE_DEFAULT], 4233 sizeof(rigid_disk_page_default)); 4234 memcpy(&lun->mode_pages.rigid_disk_page[CTL_PAGE_SAVED], 4235 &lun->mode_pages.rigid_disk_page[CTL_PAGE_DEFAULT], 4236 sizeof(rigid_disk_page_default)); 4237 4238 page_index->page_data = 4239 (uint8_t *)lun->mode_pages.rigid_disk_page; 4240 break; 4241 } 4242 case SMS_CACHING_PAGE: { 4243 struct scsi_caching_page *caching_page; 4244 4245 if (page_index->subpage != SMS_SUBPAGE_PAGE_0) 4246 panic("invalid subpage value %d", 4247 page_index->subpage); 4248 memcpy(&lun->mode_pages.caching_page[CTL_PAGE_DEFAULT], 4249 &caching_page_default, 4250 sizeof(caching_page_default)); 4251 memcpy(&lun->mode_pages.caching_page[ 4252 CTL_PAGE_CHANGEABLE], &caching_page_changeable, 4253 sizeof(caching_page_changeable)); 4254 memcpy(&lun->mode_pages.caching_page[CTL_PAGE_SAVED], 4255 &caching_page_default, 4256 sizeof(caching_page_default)); 4257 caching_page = &lun->mode_pages.caching_page[ 4258 CTL_PAGE_SAVED]; 4259 value = ctl_get_opt(&lun->be_lun->options, "writecache"); 4260 if (value != NULL && strcmp(value, "off") == 0) 4261 caching_page->flags1 &= ~SCP_WCE; 4262 value = ctl_get_opt(&lun->be_lun->options, "readcache"); 4263 if (value != NULL && strcmp(value, "off") == 0) 4264 caching_page->flags1 |= SCP_RCD; 4265 memcpy(&lun->mode_pages.caching_page[CTL_PAGE_CURRENT], 4266 &lun->mode_pages.caching_page[CTL_PAGE_SAVED], 4267 sizeof(caching_page_default)); 4268 page_index->page_data = 4269 (uint8_t *)lun->mode_pages.caching_page; 4270 break; 4271 } 4272 case SMS_CONTROL_MODE_PAGE: { 4273 struct scsi_control_page *control_page; 4274 4275 if (page_index->subpage != SMS_SUBPAGE_PAGE_0) 4276 panic("invalid subpage value %d", 4277 page_index->subpage); 4278 4279 memcpy(&lun->mode_pages.control_page[CTL_PAGE_DEFAULT], 4280 &control_page_default, 4281 sizeof(control_page_default)); 4282 memcpy(&lun->mode_pages.control_page[ 4283 CTL_PAGE_CHANGEABLE], &control_page_changeable, 4284 sizeof(control_page_changeable)); 4285 memcpy(&lun->mode_pages.control_page[CTL_PAGE_SAVED], 4286 &control_page_default, 4287 sizeof(control_page_default)); 4288 control_page = &lun->mode_pages.control_page[ 4289 CTL_PAGE_SAVED]; 4290 value = ctl_get_opt(&lun->be_lun->options, "reordering"); 4291 if (value != NULL && strcmp(value, "unrestricted") == 0) { 4292 control_page->queue_flags &= ~SCP_QUEUE_ALG_MASK; 4293 control_page->queue_flags |= SCP_QUEUE_ALG_UNRESTRICTED; 4294 } 4295 memcpy(&lun->mode_pages.control_page[CTL_PAGE_CURRENT], 4296 &lun->mode_pages.control_page[CTL_PAGE_SAVED], 4297 sizeof(control_page_default)); 4298 page_index->page_data = 4299 (uint8_t *)lun->mode_pages.control_page; 4300 break; 4301 4302 } 4303 case SMS_INFO_EXCEPTIONS_PAGE: { 4304 switch (page_index->subpage) { 4305 case SMS_SUBPAGE_PAGE_0: 4306 memcpy(&lun->mode_pages.ie_page[CTL_PAGE_CURRENT], 4307 &ie_page_default, 4308 sizeof(ie_page_default)); 4309 memcpy(&lun->mode_pages.ie_page[ 4310 CTL_PAGE_CHANGEABLE], &ie_page_changeable, 4311 sizeof(ie_page_changeable)); 4312 memcpy(&lun->mode_pages.ie_page[CTL_PAGE_DEFAULT], 4313 &ie_page_default, 4314 sizeof(ie_page_default)); 4315 memcpy(&lun->mode_pages.ie_page[CTL_PAGE_SAVED], 4316 &ie_page_default, 4317 sizeof(ie_page_default)); 4318 page_index->page_data = 4319 (uint8_t *)lun->mode_pages.ie_page; 4320 break; 4321 case 0x02: { 4322 struct ctl_logical_block_provisioning_page *page; 4323 4324 memcpy(&lun->mode_pages.lbp_page[CTL_PAGE_DEFAULT], 4325 &lbp_page_default, 4326 sizeof(lbp_page_default)); 4327 memcpy(&lun->mode_pages.lbp_page[ 4328 CTL_PAGE_CHANGEABLE], &lbp_page_changeable, 4329 sizeof(lbp_page_changeable)); 4330 memcpy(&lun->mode_pages.lbp_page[CTL_PAGE_SAVED], 4331 &lbp_page_default, 4332 sizeof(lbp_page_default)); 4333 page = &lun->mode_pages.lbp_page[CTL_PAGE_SAVED]; 4334 value = ctl_get_opt(&lun->be_lun->options, 4335 "avail-threshold"); 4336 if (value != NULL && 4337 ctl_expand_number(value, &ival) == 0) { 4338 page->descr[0].flags |= SLBPPD_ENABLED | 4339 SLBPPD_ARMING_DEC; 4340 if (lun->be_lun->blocksize) 4341 ival /= lun->be_lun->blocksize; 4342 else 4343 ival /= 512; 4344 scsi_ulto4b(ival >> CTL_LBP_EXPONENT, 4345 page->descr[0].count); 4346 } 4347 value = ctl_get_opt(&lun->be_lun->options, 4348 "used-threshold"); 4349 if (value != NULL && 4350 ctl_expand_number(value, &ival) == 0) { 4351 page->descr[1].flags |= SLBPPD_ENABLED | 4352 SLBPPD_ARMING_INC; 4353 if (lun->be_lun->blocksize) 4354 ival /= lun->be_lun->blocksize; 4355 else 4356 ival /= 512; 4357 scsi_ulto4b(ival >> CTL_LBP_EXPONENT, 4358 page->descr[1].count); 4359 } 4360 value = ctl_get_opt(&lun->be_lun->options, 4361 "pool-avail-threshold"); 4362 if (value != NULL && 4363 ctl_expand_number(value, &ival) == 0) { 4364 page->descr[2].flags |= SLBPPD_ENABLED | 4365 SLBPPD_ARMING_DEC; 4366 if (lun->be_lun->blocksize) 4367 ival /= lun->be_lun->blocksize; 4368 else 4369 ival /= 512; 4370 scsi_ulto4b(ival >> CTL_LBP_EXPONENT, 4371 page->descr[2].count); 4372 } 4373 value = ctl_get_opt(&lun->be_lun->options, 4374 "pool-used-threshold"); 4375 if (value != NULL && 4376 ctl_expand_number(value, &ival) == 0) { 4377 page->descr[3].flags |= SLBPPD_ENABLED | 4378 SLBPPD_ARMING_INC; 4379 if (lun->be_lun->blocksize) 4380 ival /= lun->be_lun->blocksize; 4381 else 4382 ival /= 512; 4383 scsi_ulto4b(ival >> CTL_LBP_EXPONENT, 4384 page->descr[3].count); 4385 } 4386 memcpy(&lun->mode_pages.lbp_page[CTL_PAGE_CURRENT], 4387 &lun->mode_pages.lbp_page[CTL_PAGE_SAVED], 4388 sizeof(lbp_page_default)); 4389 page_index->page_data = 4390 (uint8_t *)lun->mode_pages.lbp_page; 4391 }} 4392 break; 4393 } 4394 case SMS_VENDOR_SPECIFIC_PAGE:{ 4395 switch (page_index->subpage) { 4396 case DBGCNF_SUBPAGE_CODE: { 4397 struct copan_debugconf_subpage *current_page, 4398 *saved_page; 4399 4400 memcpy(&lun->mode_pages.debugconf_subpage[ 4401 CTL_PAGE_CURRENT], 4402 &debugconf_page_default, 4403 sizeof(debugconf_page_default)); 4404 memcpy(&lun->mode_pages.debugconf_subpage[ 4405 CTL_PAGE_CHANGEABLE], 4406 &debugconf_page_changeable, 4407 sizeof(debugconf_page_changeable)); 4408 memcpy(&lun->mode_pages.debugconf_subpage[ 4409 CTL_PAGE_DEFAULT], 4410 &debugconf_page_default, 4411 sizeof(debugconf_page_default)); 4412 memcpy(&lun->mode_pages.debugconf_subpage[ 4413 CTL_PAGE_SAVED], 4414 &debugconf_page_default, 4415 sizeof(debugconf_page_default)); 4416 page_index->page_data = 4417 (uint8_t *)lun->mode_pages.debugconf_subpage; 4418 4419 current_page = (struct copan_debugconf_subpage *) 4420 (page_index->page_data + 4421 (page_index->page_len * 4422 CTL_PAGE_CURRENT)); 4423 saved_page = (struct copan_debugconf_subpage *) 4424 (page_index->page_data + 4425 (page_index->page_len * 4426 CTL_PAGE_SAVED)); 4427 break; 4428 } 4429 default: 4430 panic("invalid subpage value %d", 4431 page_index->subpage); 4432 break; 4433 } 4434 break; 4435 } 4436 default: 4437 panic("invalid page value %d", 4438 page_index->page_code & SMPH_PC_MASK); 4439 break; 4440 } 4441 } 4442 4443 return (CTL_RETVAL_COMPLETE); 4444} 4445 4446static int 4447ctl_init_log_page_index(struct ctl_lun *lun) 4448{ 4449 struct ctl_page_index *page_index; 4450 int i, j, k, prev; 4451 4452 memcpy(&lun->log_pages.index, log_page_index_template, 4453 sizeof(log_page_index_template)); 4454 4455 prev = -1; 4456 for (i = 0, j = 0, k = 0; i < CTL_NUM_LOG_PAGES; i++) { 4457 4458 page_index = &lun->log_pages.index[i]; 4459 /* 4460 * If this is a disk-only mode page, there's no point in 4461 * setting it up. For some pages, we have to have some 4462 * basic information about the disk in order to calculate the 4463 * mode page data. 4464 */ 4465 if ((lun->be_lun->lun_type != T_DIRECT) 4466 && (page_index->page_flags & CTL_PAGE_FLAG_DISK_ONLY)) 4467 continue; 4468 4469 if (page_index->page_code == SLS_LOGICAL_BLOCK_PROVISIONING && 4470 lun->backend->lun_attr == NULL) 4471 continue; 4472 4473 if (page_index->page_code != prev) { 4474 lun->log_pages.pages_page[j] = page_index->page_code; 4475 prev = page_index->page_code; 4476 j++; 4477 } 4478 lun->log_pages.subpages_page[k*2] = page_index->page_code; 4479 lun->log_pages.subpages_page[k*2+1] = page_index->subpage; 4480 k++; 4481 } 4482 lun->log_pages.index[0].page_data = &lun->log_pages.pages_page[0]; 4483 lun->log_pages.index[0].page_len = j; 4484 lun->log_pages.index[1].page_data = &lun->log_pages.subpages_page[0]; 4485 lun->log_pages.index[1].page_len = k * 2; 4486 lun->log_pages.index[2].page_data = &lun->log_pages.lbp_page[0]; 4487 lun->log_pages.index[2].page_len = 12*CTL_NUM_LBP_PARAMS; 4488 lun->log_pages.index[3].page_data = (uint8_t *)&lun->log_pages.stat_page; 4489 lun->log_pages.index[3].page_len = sizeof(lun->log_pages.stat_page); 4490 4491 return (CTL_RETVAL_COMPLETE); 4492} 4493 4494static int 4495hex2bin(const char *str, uint8_t *buf, int buf_size) 4496{ 4497 int i; 4498 u_char c; 4499 4500 memset(buf, 0, buf_size); 4501 while (isspace(str[0])) 4502 str++; 4503 if (str[0] == '0' && (str[1] == 'x' || str[1] == 'X')) 4504 str += 2; 4505 buf_size *= 2; 4506 for (i = 0; str[i] != 0 && i < buf_size; i++) { 4507 c = str[i]; 4508 if (isdigit(c)) 4509 c -= '0'; 4510 else if (isalpha(c)) 4511 c -= isupper(c) ? 'A' - 10 : 'a' - 10; 4512 else 4513 break; 4514 if (c >= 16) 4515 break; 4516 if ((i & 1) == 0) 4517 buf[i / 2] |= (c << 4); 4518 else 4519 buf[i / 2] |= c; 4520 } 4521 return ((i + 1) / 2); 4522} 4523 4524/* 4525 * LUN allocation. 4526 * 4527 * Requirements: 4528 * - caller allocates and zeros LUN storage, or passes in a NULL LUN if he 4529 * wants us to allocate the LUN and he can block. 4530 * - ctl_softc is always set 4531 * - be_lun is set if the LUN has a backend (needed for disk LUNs) 4532 * 4533 * Returns 0 for success, non-zero (errno) for failure. 4534 */ 4535static int 4536ctl_alloc_lun(struct ctl_softc *ctl_softc, struct ctl_lun *ctl_lun, 4537 struct ctl_be_lun *const be_lun, struct ctl_id target_id) 4538{ 4539 struct ctl_lun *nlun, *lun; 4540 struct ctl_port *port; 4541 struct scsi_vpd_id_descriptor *desc; 4542 struct scsi_vpd_id_t10 *t10id; 4543 const char *eui, *naa, *scsiname, *vendor, *value; 4544 int lun_number, i, lun_malloced; 4545 int devidlen, idlen1, idlen2 = 0, len; 4546 4547 if (be_lun == NULL) 4548 return (EINVAL); 4549 4550 /* 4551 * We currently only support Direct Access or Processor LUN types. 4552 */ 4553 switch (be_lun->lun_type) { 4554 case T_DIRECT: 4555 break; 4556 case T_PROCESSOR: 4557 break; 4558 case T_SEQUENTIAL: 4559 case T_CHANGER: 4560 default: 4561 be_lun->lun_config_status(be_lun->be_lun, 4562 CTL_LUN_CONFIG_FAILURE); 4563 break; 4564 } 4565 if (ctl_lun == NULL) { 4566 lun = malloc(sizeof(*lun), M_CTL, M_WAITOK); 4567 lun_malloced = 1; 4568 } else { 4569 lun_malloced = 0; 4570 lun = ctl_lun; 4571 } 4572 4573 memset(lun, 0, sizeof(*lun)); 4574 if (lun_malloced) 4575 lun->flags = CTL_LUN_MALLOCED; 4576 4577 /* Generate LUN ID. */ 4578 devidlen = max(CTL_DEVID_MIN_LEN, 4579 strnlen(be_lun->device_id, CTL_DEVID_LEN)); 4580 idlen1 = sizeof(*t10id) + devidlen; 4581 len = sizeof(struct scsi_vpd_id_descriptor) + idlen1; 4582 scsiname = ctl_get_opt(&be_lun->options, "scsiname"); 4583 if (scsiname != NULL) { 4584 idlen2 = roundup2(strlen(scsiname) + 1, 4); 4585 len += sizeof(struct scsi_vpd_id_descriptor) + idlen2; 4586 } 4587 eui = ctl_get_opt(&be_lun->options, "eui"); 4588 if (eui != NULL) { 4589 len += sizeof(struct scsi_vpd_id_descriptor) + 16; 4590 } 4591 naa = ctl_get_opt(&be_lun->options, "naa"); 4592 if (naa != NULL) { 4593 len += sizeof(struct scsi_vpd_id_descriptor) + 16; 4594 } 4595 lun->lun_devid = malloc(sizeof(struct ctl_devid) + len, 4596 M_CTL, M_WAITOK | M_ZERO); 4597 desc = (struct scsi_vpd_id_descriptor *)lun->lun_devid->data; 4598 desc->proto_codeset = SVPD_ID_CODESET_ASCII; 4599 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | SVPD_ID_TYPE_T10; 4600 desc->length = idlen1; 4601 t10id = (struct scsi_vpd_id_t10 *)&desc->identifier[0]; 4602 memset(t10id->vendor, ' ', sizeof(t10id->vendor)); 4603 if ((vendor = ctl_get_opt(&be_lun->options, "vendor")) == NULL) { 4604 strncpy((char *)t10id->vendor, CTL_VENDOR, sizeof(t10id->vendor)); 4605 } else { 4606 strncpy(t10id->vendor, vendor, 4607 min(sizeof(t10id->vendor), strlen(vendor))); 4608 } 4609 strncpy((char *)t10id->vendor_spec_id, 4610 (char *)be_lun->device_id, devidlen); 4611 if (scsiname != NULL) { 4612 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 4613 desc->length); 4614 desc->proto_codeset = SVPD_ID_CODESET_UTF8; 4615 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | 4616 SVPD_ID_TYPE_SCSI_NAME; 4617 desc->length = idlen2; 4618 strlcpy(desc->identifier, scsiname, idlen2); 4619 } 4620 if (eui != NULL) { 4621 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 4622 desc->length); 4623 desc->proto_codeset = SVPD_ID_CODESET_BINARY; 4624 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | 4625 SVPD_ID_TYPE_EUI64; 4626 desc->length = hex2bin(eui, desc->identifier, 16); 4627 desc->length = desc->length > 12 ? 16 : 4628 (desc->length > 8 ? 12 : 8); 4629 len -= 16 - desc->length; 4630 } 4631 if (naa != NULL) { 4632 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 4633 desc->length); 4634 desc->proto_codeset = SVPD_ID_CODESET_BINARY; 4635 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | 4636 SVPD_ID_TYPE_NAA; 4637 desc->length = hex2bin(naa, desc->identifier, 16); 4638 desc->length = desc->length > 8 ? 16 : 8; 4639 len -= 16 - desc->length; 4640 } 4641 lun->lun_devid->len = len; 4642 4643 mtx_lock(&ctl_softc->ctl_lock); 4644 /* 4645 * See if the caller requested a particular LUN number. If so, see 4646 * if it is available. Otherwise, allocate the first available LUN. 4647 */ 4648 if (be_lun->flags & CTL_LUN_FLAG_ID_REQ) { 4649 if ((be_lun->req_lun_id > (CTL_MAX_LUNS - 1)) 4650 || (ctl_is_set(ctl_softc->ctl_lun_mask, be_lun->req_lun_id))) { 4651 mtx_unlock(&ctl_softc->ctl_lock); 4652 if (be_lun->req_lun_id > (CTL_MAX_LUNS - 1)) { 4653 printf("ctl: requested LUN ID %d is higher " 4654 "than CTL_MAX_LUNS - 1 (%d)\n", 4655 be_lun->req_lun_id, CTL_MAX_LUNS - 1); 4656 } else { 4657 /* 4658 * XXX KDM return an error, or just assign 4659 * another LUN ID in this case?? 4660 */ 4661 printf("ctl: requested LUN ID %d is already " 4662 "in use\n", be_lun->req_lun_id); 4663 } 4664 if (lun->flags & CTL_LUN_MALLOCED) 4665 free(lun, M_CTL); 4666 be_lun->lun_config_status(be_lun->be_lun, 4667 CTL_LUN_CONFIG_FAILURE); 4668 return (ENOSPC); 4669 } 4670 lun_number = be_lun->req_lun_id; 4671 } else { 4672 lun_number = ctl_ffz(ctl_softc->ctl_lun_mask, CTL_MAX_LUNS); 4673 if (lun_number == -1) { 4674 mtx_unlock(&ctl_softc->ctl_lock); 4675 printf("ctl: can't allocate LUN on target %ju, out of " 4676 "LUNs\n", (uintmax_t)target_id.id); 4677 if (lun->flags & CTL_LUN_MALLOCED) 4678 free(lun, M_CTL); 4679 be_lun->lun_config_status(be_lun->be_lun, 4680 CTL_LUN_CONFIG_FAILURE); 4681 return (ENOSPC); 4682 } 4683 } 4684 ctl_set_mask(ctl_softc->ctl_lun_mask, lun_number); 4685 4686 mtx_init(&lun->lun_lock, "CTL LUN", NULL, MTX_DEF); 4687 lun->target = target_id; 4688 lun->lun = lun_number; 4689 lun->be_lun = be_lun; 4690 /* 4691 * The processor LUN is always enabled. Disk LUNs come on line 4692 * disabled, and must be enabled by the backend. 4693 */ 4694 lun->flags |= CTL_LUN_DISABLED; 4695 lun->backend = be_lun->be; 4696 be_lun->ctl_lun = lun; 4697 be_lun->lun_id = lun_number; 4698 atomic_add_int(&be_lun->be->num_luns, 1); 4699 if (be_lun->flags & CTL_LUN_FLAG_OFFLINE) 4700 lun->flags |= CTL_LUN_OFFLINE; 4701 4702 if (be_lun->flags & CTL_LUN_FLAG_POWERED_OFF) 4703 lun->flags |= CTL_LUN_STOPPED; 4704 4705 if (be_lun->flags & CTL_LUN_FLAG_INOPERABLE) 4706 lun->flags |= CTL_LUN_INOPERABLE; 4707 4708 if (be_lun->flags & CTL_LUN_FLAG_PRIMARY) 4709 lun->flags |= CTL_LUN_PRIMARY_SC; 4710 4711 value = ctl_get_opt(&be_lun->options, "readonly"); 4712 if (value != NULL && strcmp(value, "on") == 0) 4713 lun->flags |= CTL_LUN_READONLY; 4714 4715 lun->serseq = CTL_LUN_SERSEQ_OFF; 4716 if (be_lun->flags & CTL_LUN_FLAG_SERSEQ_READ) 4717 lun->serseq = CTL_LUN_SERSEQ_READ; 4718 value = ctl_get_opt(&be_lun->options, "serseq"); 4719 if (value != NULL && strcmp(value, "on") == 0) 4720 lun->serseq = CTL_LUN_SERSEQ_ON; 4721 else if (value != NULL && strcmp(value, "read") == 0) 4722 lun->serseq = CTL_LUN_SERSEQ_READ; 4723 else if (value != NULL && strcmp(value, "off") == 0) 4724 lun->serseq = CTL_LUN_SERSEQ_OFF; 4725 4726 lun->ctl_softc = ctl_softc; 4727#ifdef CTL_TIME_IO 4728 lun->last_busy = getsbinuptime(); 4729#endif 4730 TAILQ_INIT(&lun->ooa_queue); 4731 TAILQ_INIT(&lun->blocked_queue); 4732 STAILQ_INIT(&lun->error_list); 4733 ctl_tpc_lun_init(lun); 4734 4735 /* 4736 * Initialize the mode and log page index. 4737 */ 4738 ctl_init_page_index(lun); 4739 ctl_init_log_page_index(lun); 4740 4741 /* 4742 * Now, before we insert this lun on the lun list, set the lun 4743 * inventory changed UA for all other luns. 4744 */ 4745 STAILQ_FOREACH(nlun, &ctl_softc->lun_list, links) { 4746 mtx_lock(&nlun->lun_lock); 4747 ctl_est_ua_all(nlun, -1, CTL_UA_LUN_CHANGE); 4748 mtx_unlock(&nlun->lun_lock); 4749 } 4750 4751 STAILQ_INSERT_TAIL(&ctl_softc->lun_list, lun, links); 4752 4753 ctl_softc->ctl_luns[lun_number] = lun; 4754 4755 ctl_softc->num_luns++; 4756 4757 /* Setup statistics gathering */ 4758 lun->stats.device_type = be_lun->lun_type; 4759 lun->stats.lun_number = lun_number; 4760 if (lun->stats.device_type == T_DIRECT) 4761 lun->stats.blocksize = be_lun->blocksize; 4762 else 4763 lun->stats.flags = CTL_LUN_STATS_NO_BLOCKSIZE; 4764 for (i = 0;i < CTL_MAX_PORTS;i++) 4765 lun->stats.ports[i].targ_port = i; 4766 4767 mtx_unlock(&ctl_softc->ctl_lock); 4768 4769 lun->be_lun->lun_config_status(lun->be_lun->be_lun, CTL_LUN_CONFIG_OK); 4770 4771 /* 4772 * Run through each registered FETD and bring it online if it isn't 4773 * already. Enable the target ID if it hasn't been enabled, and 4774 * enable this particular LUN. 4775 */ 4776 STAILQ_FOREACH(port, &ctl_softc->port_list, links) { 4777 int retval; 4778 4779 retval = port->lun_enable(port->targ_lun_arg, target_id,lun_number); 4780 if (retval != 0) { 4781 printf("ctl_alloc_lun: FETD %s port %d returned error " 4782 "%d for lun_enable on target %ju lun %d\n", 4783 port->port_name, port->targ_port, retval, 4784 (uintmax_t)target_id.id, lun_number); 4785 } else 4786 port->status |= CTL_PORT_STATUS_LUN_ONLINE; 4787 } 4788 return (0); 4789} 4790 4791/* 4792 * Delete a LUN. 4793 * Assumptions: 4794 * - LUN has already been marked invalid and any pending I/O has been taken 4795 * care of. 4796 */ 4797static int 4798ctl_free_lun(struct ctl_lun *lun) 4799{ 4800 struct ctl_softc *softc; 4801 struct ctl_port *port; 4802 struct ctl_lun *nlun; 4803 int i; 4804 4805 softc = lun->ctl_softc; 4806 4807 mtx_assert(&softc->ctl_lock, MA_OWNED); 4808 4809 STAILQ_FOREACH(port, &softc->port_list, links) 4810 ctl_lun_map_unsetg(port, lun->lun); 4811 4812 STAILQ_REMOVE(&softc->lun_list, lun, ctl_lun, links); 4813 4814 ctl_clear_mask(softc->ctl_lun_mask, lun->lun); 4815 4816 softc->ctl_luns[lun->lun] = NULL; 4817 4818 if (!TAILQ_EMPTY(&lun->ooa_queue)) 4819 panic("Freeing a LUN %p with outstanding I/O!!\n", lun); 4820 4821 softc->num_luns--; 4822 4823 /* 4824 * XXX KDM this scheme only works for a single target/multiple LUN 4825 * setup. It needs to be revamped for a multiple target scheme. 4826 * 4827 * XXX KDM this results in port->lun_disable() getting called twice, 4828 * once when ctl_disable_lun() is called, and a second time here. 4829 * We really need to re-think the LUN disable semantics. There 4830 * should probably be several steps/levels to LUN removal: 4831 * - disable 4832 * - invalidate 4833 * - free 4834 * 4835 * Right now we only have a disable method when communicating to 4836 * the front end ports, at least for individual LUNs. 4837 */ 4838#if 0 4839 STAILQ_FOREACH(port, &softc->port_list, links) { 4840 int retval; 4841 4842 retval = port->lun_disable(port->targ_lun_arg, lun->target, 4843 lun->lun); 4844 if (retval != 0) { 4845 printf("ctl_free_lun: FETD %s port %d returned error " 4846 "%d for lun_disable on target %ju lun %jd\n", 4847 port->port_name, port->targ_port, retval, 4848 (uintmax_t)lun->target.id, (intmax_t)lun->lun); 4849 } 4850 4851 if (STAILQ_FIRST(&softc->lun_list) == NULL) { 4852 port->status &= ~CTL_PORT_STATUS_LUN_ONLINE; 4853 4854 retval = port->targ_disable(port->targ_lun_arg,lun->target); 4855 if (retval != 0) { 4856 printf("ctl_free_lun: FETD %s port %d " 4857 "returned error %d for targ_disable on " 4858 "target %ju\n", port->port_name, 4859 port->targ_port, retval, 4860 (uintmax_t)lun->target.id); 4861 } else 4862 port->status &= ~CTL_PORT_STATUS_TARG_ONLINE; 4863 4864 if ((port->status & CTL_PORT_STATUS_TARG_ONLINE) != 0) 4865 continue; 4866 4867#if 0 4868 port->port_offline(port->onoff_arg); 4869 port->status &= ~CTL_PORT_STATUS_ONLINE; 4870#endif 4871 } 4872 } 4873#endif 4874 4875 /* 4876 * Tell the backend to free resources, if this LUN has a backend. 4877 */ 4878 atomic_subtract_int(&lun->be_lun->be->num_luns, 1); 4879 lun->be_lun->lun_shutdown(lun->be_lun->be_lun); 4880 4881 ctl_tpc_lun_shutdown(lun); 4882 mtx_destroy(&lun->lun_lock); 4883 free(lun->lun_devid, M_CTL); 4884 for (i = 0; i < CTL_MAX_PORTS; i++) 4885 free(lun->pending_ua[i], M_CTL); 4886 for (i = 0; i < 2 * CTL_MAX_PORTS; i++) 4887 free(lun->pr_keys[i], M_CTL); 4888 free(lun->write_buffer, M_CTL); 4889 if (lun->flags & CTL_LUN_MALLOCED) 4890 free(lun, M_CTL); 4891 4892 STAILQ_FOREACH(nlun, &softc->lun_list, links) { 4893 mtx_lock(&nlun->lun_lock); 4894 ctl_est_ua_all(nlun, -1, CTL_UA_LUN_CHANGE); 4895 mtx_unlock(&nlun->lun_lock); 4896 } 4897 4898 return (0); 4899} 4900 4901static void 4902ctl_create_lun(struct ctl_be_lun *be_lun) 4903{ 4904 struct ctl_softc *softc; 4905 4906 softc = control_softc; 4907 4908 /* 4909 * ctl_alloc_lun() should handle all potential failure cases. 4910 */ 4911 ctl_alloc_lun(softc, NULL, be_lun, softc->target); 4912} 4913 4914int 4915ctl_add_lun(struct ctl_be_lun *be_lun) 4916{ 4917 struct ctl_softc *softc = control_softc; 4918 4919 mtx_lock(&softc->ctl_lock); 4920 STAILQ_INSERT_TAIL(&softc->pending_lun_queue, be_lun, links); 4921 mtx_unlock(&softc->ctl_lock); 4922 wakeup(&softc->pending_lun_queue); 4923 4924 return (0); 4925} 4926 4927int 4928ctl_enable_lun(struct ctl_be_lun *be_lun) 4929{ 4930 struct ctl_softc *softc; 4931 struct ctl_port *port, *nport; 4932 struct ctl_lun *lun; 4933 int retval; 4934 4935 lun = (struct ctl_lun *)be_lun->ctl_lun; 4936 softc = lun->ctl_softc; 4937 4938 mtx_lock(&softc->ctl_lock); 4939 mtx_lock(&lun->lun_lock); 4940 if ((lun->flags & CTL_LUN_DISABLED) == 0) { 4941 /* 4942 * eh? Why did we get called if the LUN is already 4943 * enabled? 4944 */ 4945 mtx_unlock(&lun->lun_lock); 4946 mtx_unlock(&softc->ctl_lock); 4947 return (0); 4948 } 4949 lun->flags &= ~CTL_LUN_DISABLED; 4950 mtx_unlock(&lun->lun_lock); 4951 4952 for (port = STAILQ_FIRST(&softc->port_list); port != NULL; port = nport) { 4953 nport = STAILQ_NEXT(port, links); 4954 4955 /* 4956 * Drop the lock while we call the FETD's enable routine. 4957 * This can lead to a callback into CTL (at least in the 4958 * case of the internal initiator frontend. 4959 */ 4960 mtx_unlock(&softc->ctl_lock); 4961 retval = port->lun_enable(port->targ_lun_arg, lun->target,lun->lun); 4962 mtx_lock(&softc->ctl_lock); 4963 if (retval != 0) { 4964 printf("%s: FETD %s port %d returned error " 4965 "%d for lun_enable on target %ju lun %jd\n", 4966 __func__, port->port_name, port->targ_port, retval, 4967 (uintmax_t)lun->target.id, (intmax_t)lun->lun); 4968 } 4969#if 0 4970 else { 4971 /* NOTE: TODO: why does lun enable affect port status? */ 4972 port->status |= CTL_PORT_STATUS_LUN_ONLINE; 4973 } 4974#endif 4975 } 4976 4977 mtx_unlock(&softc->ctl_lock); 4978 4979 return (0); 4980} 4981 4982int 4983ctl_disable_lun(struct ctl_be_lun *be_lun) 4984{ 4985 struct ctl_softc *softc; 4986 struct ctl_port *port; 4987 struct ctl_lun *lun; 4988 int retval; 4989 4990 lun = (struct ctl_lun *)be_lun->ctl_lun; 4991 softc = lun->ctl_softc; 4992 4993 mtx_lock(&softc->ctl_lock); 4994 mtx_lock(&lun->lun_lock); 4995 if (lun->flags & CTL_LUN_DISABLED) { 4996 mtx_unlock(&lun->lun_lock); 4997 mtx_unlock(&softc->ctl_lock); 4998 return (0); 4999 } 5000 lun->flags |= CTL_LUN_DISABLED; 5001 mtx_unlock(&lun->lun_lock); 5002 5003 STAILQ_FOREACH(port, &softc->port_list, links) { 5004 mtx_unlock(&softc->ctl_lock); 5005 /* 5006 * Drop the lock before we call the frontend's disable 5007 * routine, to avoid lock order reversals. 5008 * 5009 * XXX KDM what happens if the frontend list changes while 5010 * we're traversing it? It's unlikely, but should be handled. 5011 */ 5012 retval = port->lun_disable(port->targ_lun_arg, lun->target, 5013 lun->lun); 5014 mtx_lock(&softc->ctl_lock); 5015 if (retval != 0) { 5016 printf("%s: FETD %s port %d returned error " 5017 "%d for lun_disable on target %ju lun %jd\n", 5018 __func__, port->port_name, port->targ_port, retval, 5019 (uintmax_t)lun->target.id, (intmax_t)lun->lun); 5020 } 5021 } 5022 5023 mtx_unlock(&softc->ctl_lock); 5024 5025 return (0); 5026} 5027 5028int 5029ctl_start_lun(struct ctl_be_lun *be_lun) 5030{ 5031 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 5032 5033 mtx_lock(&lun->lun_lock); 5034 lun->flags &= ~CTL_LUN_STOPPED; 5035 mtx_unlock(&lun->lun_lock); 5036 return (0); 5037} 5038 5039int 5040ctl_stop_lun(struct ctl_be_lun *be_lun) 5041{ 5042 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 5043 5044 mtx_lock(&lun->lun_lock); 5045 lun->flags |= CTL_LUN_STOPPED; 5046 mtx_unlock(&lun->lun_lock); 5047 return (0); 5048} 5049 5050int 5051ctl_lun_offline(struct ctl_be_lun *be_lun) 5052{ 5053 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 5054 5055 mtx_lock(&lun->lun_lock); 5056 lun->flags |= CTL_LUN_OFFLINE; 5057 mtx_unlock(&lun->lun_lock); 5058 return (0); 5059} 5060 5061int 5062ctl_lun_online(struct ctl_be_lun *be_lun) 5063{ 5064 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 5065 5066 mtx_lock(&lun->lun_lock); 5067 lun->flags &= ~CTL_LUN_OFFLINE; 5068 mtx_unlock(&lun->lun_lock); 5069 return (0); 5070} 5071 5072int 5073ctl_invalidate_lun(struct ctl_be_lun *be_lun) 5074{ 5075 struct ctl_softc *softc; 5076 struct ctl_lun *lun; 5077 5078 lun = (struct ctl_lun *)be_lun->ctl_lun; 5079 softc = lun->ctl_softc; 5080 5081 mtx_lock(&lun->lun_lock); 5082 5083 /* 5084 * The LUN needs to be disabled before it can be marked invalid. 5085 */ 5086 if ((lun->flags & CTL_LUN_DISABLED) == 0) { 5087 mtx_unlock(&lun->lun_lock); 5088 return (-1); 5089 } 5090 /* 5091 * Mark the LUN invalid. 5092 */ 5093 lun->flags |= CTL_LUN_INVALID; 5094 5095 /* 5096 * If there is nothing in the OOA queue, go ahead and free the LUN. 5097 * If we have something in the OOA queue, we'll free it when the 5098 * last I/O completes. 5099 */ 5100 if (TAILQ_EMPTY(&lun->ooa_queue)) { 5101 mtx_unlock(&lun->lun_lock); 5102 mtx_lock(&softc->ctl_lock); 5103 ctl_free_lun(lun); 5104 mtx_unlock(&softc->ctl_lock); 5105 } else 5106 mtx_unlock(&lun->lun_lock); 5107 5108 return (0); 5109} 5110 5111int 5112ctl_lun_inoperable(struct ctl_be_lun *be_lun) 5113{ 5114 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 5115 5116 mtx_lock(&lun->lun_lock); 5117 lun->flags |= CTL_LUN_INOPERABLE; 5118 mtx_unlock(&lun->lun_lock); 5119 return (0); 5120} 5121 5122int 5123ctl_lun_operable(struct ctl_be_lun *be_lun) 5124{ 5125 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 5126 5127 mtx_lock(&lun->lun_lock); 5128 lun->flags &= ~CTL_LUN_INOPERABLE; 5129 mtx_unlock(&lun->lun_lock); 5130 return (0); 5131} 5132 5133void 5134ctl_lun_capacity_changed(struct ctl_be_lun *be_lun) 5135{ 5136 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 5137 5138 mtx_lock(&lun->lun_lock); 5139 ctl_est_ua_all(lun, -1, CTL_UA_CAPACITY_CHANGED); 5140 mtx_unlock(&lun->lun_lock); 5141} 5142 5143/* 5144 * Backend "memory move is complete" callback for requests that never 5145 * make it down to say RAIDCore's configuration code. 5146 */ 5147int 5148ctl_config_move_done(union ctl_io *io) 5149{ 5150 int retval; 5151 5152 CTL_DEBUG_PRINT(("ctl_config_move_done\n")); 5153 KASSERT(io->io_hdr.io_type == CTL_IO_SCSI, 5154 ("Config I/O type isn't CTL_IO_SCSI (%d)!", io->io_hdr.io_type)); 5155 5156 if ((io->io_hdr.port_status != 0) && 5157 ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE || 5158 (io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS)) { 5159 /* 5160 * For hardware error sense keys, the sense key 5161 * specific value is defined to be a retry count, 5162 * but we use it to pass back an internal FETD 5163 * error code. XXX KDM Hopefully the FETD is only 5164 * using 16 bits for an error code, since that's 5165 * all the space we have in the sks field. 5166 */ 5167 ctl_set_internal_failure(&io->scsiio, 5168 /*sks_valid*/ 1, 5169 /*retry_count*/ 5170 io->io_hdr.port_status); 5171 } 5172 5173 if (((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_IN) || 5174 ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE && 5175 (io->io_hdr.status & CTL_STATUS_MASK) != CTL_SUCCESS) || 5176 ((io->io_hdr.flags & CTL_FLAG_ABORT) != 0)) { 5177 /* 5178 * XXX KDM just assuming a single pointer here, and not a 5179 * S/G list. If we start using S/G lists for config data, 5180 * we'll need to know how to clean them up here as well. 5181 */ 5182 if (io->io_hdr.flags & CTL_FLAG_ALLOCATED) 5183 free(io->scsiio.kern_data_ptr, M_CTL); 5184 ctl_done(io); 5185 retval = CTL_RETVAL_COMPLETE; 5186 } else { 5187 /* 5188 * XXX KDM now we need to continue data movement. Some 5189 * options: 5190 * - call ctl_scsiio() again? We don't do this for data 5191 * writes, because for those at least we know ahead of 5192 * time where the write will go and how long it is. For 5193 * config writes, though, that information is largely 5194 * contained within the write itself, thus we need to 5195 * parse out the data again. 5196 * 5197 * - Call some other function once the data is in? 5198 */ 5199 if (ctl_debug & CTL_DEBUG_CDB_DATA) 5200 ctl_data_print(io); 5201 5202 /* 5203 * XXX KDM call ctl_scsiio() again for now, and check flag 5204 * bits to see whether we're allocated or not. 5205 */ 5206 retval = ctl_scsiio(&io->scsiio); 5207 } 5208 return (retval); 5209} 5210 5211/* 5212 * This gets called by a backend driver when it is done with a 5213 * data_submit method. 5214 */ 5215void 5216ctl_data_submit_done(union ctl_io *io) 5217{ 5218 /* 5219 * If the IO_CONT flag is set, we need to call the supplied 5220 * function to continue processing the I/O, instead of completing 5221 * the I/O just yet. 5222 * 5223 * If there is an error, though, we don't want to keep processing. 5224 * Instead, just send status back to the initiator. 5225 */ 5226 if ((io->io_hdr.flags & CTL_FLAG_IO_CONT) && 5227 (io->io_hdr.flags & CTL_FLAG_ABORT) == 0 && 5228 ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE || 5229 (io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS)) { 5230 io->scsiio.io_cont(io); 5231 return; 5232 } 5233 ctl_done(io); 5234} 5235 5236/* 5237 * This gets called by a backend driver when it is done with a 5238 * configuration write. 5239 */ 5240void 5241ctl_config_write_done(union ctl_io *io) 5242{ 5243 uint8_t *buf; 5244 5245 /* 5246 * If the IO_CONT flag is set, we need to call the supplied 5247 * function to continue processing the I/O, instead of completing 5248 * the I/O just yet. 5249 * 5250 * If there is an error, though, we don't want to keep processing. 5251 * Instead, just send status back to the initiator. 5252 */ 5253 if ((io->io_hdr.flags & CTL_FLAG_IO_CONT) && 5254 (io->io_hdr.flags & CTL_FLAG_ABORT) == 0 && 5255 ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE || 5256 (io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS)) { 5257 io->scsiio.io_cont(io); 5258 return; 5259 } 5260 /* 5261 * Since a configuration write can be done for commands that actually 5262 * have data allocated, like write buffer, and commands that have 5263 * no data, like start/stop unit, we need to check here. 5264 */ 5265 if (io->io_hdr.flags & CTL_FLAG_ALLOCATED) 5266 buf = io->scsiio.kern_data_ptr; 5267 else 5268 buf = NULL; 5269 ctl_done(io); 5270 if (buf) 5271 free(buf, M_CTL); 5272} 5273 5274void 5275ctl_config_read_done(union ctl_io *io) 5276{ 5277 uint8_t *buf; 5278 5279 /* 5280 * If there is some error -- we are done, skip data transfer. 5281 */ 5282 if ((io->io_hdr.flags & CTL_FLAG_ABORT) != 0 || 5283 ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE && 5284 (io->io_hdr.status & CTL_STATUS_MASK) != CTL_SUCCESS)) { 5285 if (io->io_hdr.flags & CTL_FLAG_ALLOCATED) 5286 buf = io->scsiio.kern_data_ptr; 5287 else 5288 buf = NULL; 5289 ctl_done(io); 5290 if (buf) 5291 free(buf, M_CTL); 5292 return; 5293 } 5294 5295 /* 5296 * If the IO_CONT flag is set, we need to call the supplied 5297 * function to continue processing the I/O, instead of completing 5298 * the I/O just yet. 5299 */ 5300 if (io->io_hdr.flags & CTL_FLAG_IO_CONT) { 5301 io->scsiio.io_cont(io); 5302 return; 5303 } 5304 5305 ctl_datamove(io); 5306} 5307 5308/* 5309 * SCSI release command. 5310 */ 5311int 5312ctl_scsi_release(struct ctl_scsiio *ctsio) 5313{ 5314 int length, longid, thirdparty_id, resv_id; 5315 struct ctl_lun *lun; 5316 uint32_t residx; 5317 5318 length = 0; 5319 resv_id = 0; 5320 5321 CTL_DEBUG_PRINT(("ctl_scsi_release\n")); 5322 5323 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 5324 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5325 5326 switch (ctsio->cdb[0]) { 5327 case RELEASE_10: { 5328 struct scsi_release_10 *cdb; 5329 5330 cdb = (struct scsi_release_10 *)ctsio->cdb; 5331 5332 if (cdb->byte2 & SR10_LONGID) 5333 longid = 1; 5334 else 5335 thirdparty_id = cdb->thirdparty_id; 5336 5337 resv_id = cdb->resv_id; 5338 length = scsi_2btoul(cdb->length); 5339 break; 5340 } 5341 } 5342 5343 5344 /* 5345 * XXX KDM right now, we only support LUN reservation. We don't 5346 * support 3rd party reservations, or extent reservations, which 5347 * might actually need the parameter list. If we've gotten this 5348 * far, we've got a LUN reservation. Anything else got kicked out 5349 * above. So, according to SPC, ignore the length. 5350 */ 5351 length = 0; 5352 5353 if (((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) 5354 && (length > 0)) { 5355 ctsio->kern_data_ptr = malloc(length, M_CTL, M_WAITOK); 5356 ctsio->kern_data_len = length; 5357 ctsio->kern_total_len = length; 5358 ctsio->kern_data_resid = 0; 5359 ctsio->kern_rel_offset = 0; 5360 ctsio->kern_sg_entries = 0; 5361 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5362 ctsio->be_move_done = ctl_config_move_done; 5363 ctl_datamove((union ctl_io *)ctsio); 5364 5365 return (CTL_RETVAL_COMPLETE); 5366 } 5367 5368 if (length > 0) 5369 thirdparty_id = scsi_8btou64(ctsio->kern_data_ptr); 5370 5371 mtx_lock(&lun->lun_lock); 5372 5373 /* 5374 * According to SPC, it is not an error for an intiator to attempt 5375 * to release a reservation on a LUN that isn't reserved, or that 5376 * is reserved by another initiator. The reservation can only be 5377 * released, though, by the initiator who made it or by one of 5378 * several reset type events. 5379 */ 5380 if ((lun->flags & CTL_LUN_RESERVED) && (lun->res_idx == residx)) 5381 lun->flags &= ~CTL_LUN_RESERVED; 5382 5383 mtx_unlock(&lun->lun_lock); 5384 5385 if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) { 5386 free(ctsio->kern_data_ptr, M_CTL); 5387 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED; 5388 } 5389 5390 ctl_set_success(ctsio); 5391 ctl_done((union ctl_io *)ctsio); 5392 return (CTL_RETVAL_COMPLETE); 5393} 5394 5395int 5396ctl_scsi_reserve(struct ctl_scsiio *ctsio) 5397{ 5398 int extent, thirdparty, longid; 5399 int resv_id, length; 5400 uint64_t thirdparty_id; 5401 struct ctl_lun *lun; 5402 uint32_t residx; 5403 5404 extent = 0; 5405 thirdparty = 0; 5406 longid = 0; 5407 resv_id = 0; 5408 length = 0; 5409 thirdparty_id = 0; 5410 5411 CTL_DEBUG_PRINT(("ctl_reserve\n")); 5412 5413 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 5414 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5415 5416 switch (ctsio->cdb[0]) { 5417 case RESERVE_10: { 5418 struct scsi_reserve_10 *cdb; 5419 5420 cdb = (struct scsi_reserve_10 *)ctsio->cdb; 5421 5422 if (cdb->byte2 & SR10_LONGID) 5423 longid = 1; 5424 else 5425 thirdparty_id = cdb->thirdparty_id; 5426 5427 resv_id = cdb->resv_id; 5428 length = scsi_2btoul(cdb->length); 5429 break; 5430 } 5431 } 5432 5433 /* 5434 * XXX KDM right now, we only support LUN reservation. We don't 5435 * support 3rd party reservations, or extent reservations, which 5436 * might actually need the parameter list. If we've gotten this 5437 * far, we've got a LUN reservation. Anything else got kicked out 5438 * above. So, according to SPC, ignore the length. 5439 */ 5440 length = 0; 5441 5442 if (((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) 5443 && (length > 0)) { 5444 ctsio->kern_data_ptr = malloc(length, M_CTL, M_WAITOK); 5445 ctsio->kern_data_len = length; 5446 ctsio->kern_total_len = length; 5447 ctsio->kern_data_resid = 0; 5448 ctsio->kern_rel_offset = 0; 5449 ctsio->kern_sg_entries = 0; 5450 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5451 ctsio->be_move_done = ctl_config_move_done; 5452 ctl_datamove((union ctl_io *)ctsio); 5453 5454 return (CTL_RETVAL_COMPLETE); 5455 } 5456 5457 if (length > 0) 5458 thirdparty_id = scsi_8btou64(ctsio->kern_data_ptr); 5459 5460 mtx_lock(&lun->lun_lock); 5461 if ((lun->flags & CTL_LUN_RESERVED) && (lun->res_idx != residx)) { 5462 ctl_set_reservation_conflict(ctsio); 5463 goto bailout; 5464 } 5465 5466 lun->flags |= CTL_LUN_RESERVED; 5467 lun->res_idx = residx; 5468 5469 ctl_set_success(ctsio); 5470 5471bailout: 5472 mtx_unlock(&lun->lun_lock); 5473 5474 if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) { 5475 free(ctsio->kern_data_ptr, M_CTL); 5476 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED; 5477 } 5478 5479 ctl_done((union ctl_io *)ctsio); 5480 return (CTL_RETVAL_COMPLETE); 5481} 5482 5483int 5484ctl_start_stop(struct ctl_scsiio *ctsio) 5485{ 5486 struct scsi_start_stop_unit *cdb; 5487 struct ctl_lun *lun; 5488 int retval; 5489 5490 CTL_DEBUG_PRINT(("ctl_start_stop\n")); 5491 5492 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5493 retval = 0; 5494 5495 cdb = (struct scsi_start_stop_unit *)ctsio->cdb; 5496 5497 /* 5498 * XXX KDM 5499 * We don't support the immediate bit on a stop unit. In order to 5500 * do that, we would need to code up a way to know that a stop is 5501 * pending, and hold off any new commands until it completes, one 5502 * way or another. Then we could accept or reject those commands 5503 * depending on its status. We would almost need to do the reverse 5504 * of what we do below for an immediate start -- return the copy of 5505 * the ctl_io to the FETD with status to send to the host (and to 5506 * free the copy!) and then free the original I/O once the stop 5507 * actually completes. That way, the OOA queue mechanism can work 5508 * to block commands that shouldn't proceed. Another alternative 5509 * would be to put the copy in the queue in place of the original, 5510 * and return the original back to the caller. That could be 5511 * slightly safer.. 5512 */ 5513 if ((cdb->byte2 & SSS_IMMED) 5514 && ((cdb->how & SSS_START) == 0)) { 5515 ctl_set_invalid_field(ctsio, 5516 /*sks_valid*/ 1, 5517 /*command*/ 1, 5518 /*field*/ 1, 5519 /*bit_valid*/ 1, 5520 /*bit*/ 0); 5521 ctl_done((union ctl_io *)ctsio); 5522 return (CTL_RETVAL_COMPLETE); 5523 } 5524 5525 if ((lun->flags & CTL_LUN_PR_RESERVED) 5526 && ((cdb->how & SSS_START)==0)) { 5527 uint32_t residx; 5528 5529 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 5530 if (ctl_get_prkey(lun, residx) == 0 5531 || (lun->pr_res_idx!=residx && lun->res_type < 4)) { 5532 5533 ctl_set_reservation_conflict(ctsio); 5534 ctl_done((union ctl_io *)ctsio); 5535 return (CTL_RETVAL_COMPLETE); 5536 } 5537 } 5538 5539 /* 5540 * If there is no backend on this device, we can't start or stop 5541 * it. In theory we shouldn't get any start/stop commands in the 5542 * first place at this level if the LUN doesn't have a backend. 5543 * That should get stopped by the command decode code. 5544 */ 5545 if (lun->backend == NULL) { 5546 ctl_set_invalid_opcode(ctsio); 5547 ctl_done((union ctl_io *)ctsio); 5548 return (CTL_RETVAL_COMPLETE); 5549 } 5550 5551 /* 5552 * XXX KDM Copan-specific offline behavior. 5553 * Figure out a reasonable way to port this? 5554 */ 5555#ifdef NEEDTOPORT 5556 mtx_lock(&lun->lun_lock); 5557 5558 if (((cdb->byte2 & SSS_ONOFFLINE) == 0) 5559 && (lun->flags & CTL_LUN_OFFLINE)) { 5560 /* 5561 * If the LUN is offline, and the on/offline bit isn't set, 5562 * reject the start or stop. Otherwise, let it through. 5563 */ 5564 mtx_unlock(&lun->lun_lock); 5565 ctl_set_lun_not_ready(ctsio); 5566 ctl_done((union ctl_io *)ctsio); 5567 } else { 5568 mtx_unlock(&lun->lun_lock); 5569#endif /* NEEDTOPORT */ 5570 /* 5571 * This could be a start or a stop when we're online, 5572 * or a stop/offline or start/online. A start or stop when 5573 * we're offline is covered in the case above. 5574 */ 5575 /* 5576 * In the non-immediate case, we send the request to 5577 * the backend and return status to the user when 5578 * it is done. 5579 * 5580 * In the immediate case, we allocate a new ctl_io 5581 * to hold a copy of the request, and send that to 5582 * the backend. We then set good status on the 5583 * user's request and return it immediately. 5584 */ 5585 if (cdb->byte2 & SSS_IMMED) { 5586 union ctl_io *new_io; 5587 5588 new_io = ctl_alloc_io(ctsio->io_hdr.pool); 5589 ctl_copy_io((union ctl_io *)ctsio, new_io); 5590 retval = lun->backend->config_write(new_io); 5591 ctl_set_success(ctsio); 5592 ctl_done((union ctl_io *)ctsio); 5593 } else { 5594 retval = lun->backend->config_write( 5595 (union ctl_io *)ctsio); 5596 } 5597#ifdef NEEDTOPORT 5598 } 5599#endif 5600 return (retval); 5601} 5602 5603/* 5604 * We support the SYNCHRONIZE CACHE command (10 and 16 byte versions), but 5605 * we don't really do anything with the LBA and length fields if the user 5606 * passes them in. Instead we'll just flush out the cache for the entire 5607 * LUN. 5608 */ 5609int 5610ctl_sync_cache(struct ctl_scsiio *ctsio) 5611{ 5612 struct ctl_lun *lun; 5613 struct ctl_softc *softc; 5614 uint64_t starting_lba; 5615 uint32_t block_count; 5616 int retval; 5617 5618 CTL_DEBUG_PRINT(("ctl_sync_cache\n")); 5619 5620 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5621 softc = lun->ctl_softc; 5622 retval = 0; 5623 5624 switch (ctsio->cdb[0]) { 5625 case SYNCHRONIZE_CACHE: { 5626 struct scsi_sync_cache *cdb; 5627 cdb = (struct scsi_sync_cache *)ctsio->cdb; 5628 5629 starting_lba = scsi_4btoul(cdb->begin_lba); 5630 block_count = scsi_2btoul(cdb->lb_count); 5631 break; 5632 } 5633 case SYNCHRONIZE_CACHE_16: { 5634 struct scsi_sync_cache_16 *cdb; 5635 cdb = (struct scsi_sync_cache_16 *)ctsio->cdb; 5636 5637 starting_lba = scsi_8btou64(cdb->begin_lba); 5638 block_count = scsi_4btoul(cdb->lb_count); 5639 break; 5640 } 5641 default: 5642 ctl_set_invalid_opcode(ctsio); 5643 ctl_done((union ctl_io *)ctsio); 5644 goto bailout; 5645 break; /* NOTREACHED */ 5646 } 5647 5648 /* 5649 * We check the LBA and length, but don't do anything with them. 5650 * A SYNCHRONIZE CACHE will cause the entire cache for this lun to 5651 * get flushed. This check will just help satisfy anyone who wants 5652 * to see an error for an out of range LBA. 5653 */ 5654 if ((starting_lba + block_count) > (lun->be_lun->maxlba + 1)) { 5655 ctl_set_lba_out_of_range(ctsio); 5656 ctl_done((union ctl_io *)ctsio); 5657 goto bailout; 5658 } 5659 5660 /* 5661 * If this LUN has no backend, we can't flush the cache anyway. 5662 */ 5663 if (lun->backend == NULL) { 5664 ctl_set_invalid_opcode(ctsio); 5665 ctl_done((union ctl_io *)ctsio); 5666 goto bailout; 5667 } 5668 5669 /* 5670 * Check to see whether we're configured to send the SYNCHRONIZE 5671 * CACHE command directly to the back end. 5672 */ 5673 mtx_lock(&lun->lun_lock); 5674 if ((softc->flags & CTL_FLAG_REAL_SYNC) 5675 && (++(lun->sync_count) >= lun->sync_interval)) { 5676 lun->sync_count = 0; 5677 mtx_unlock(&lun->lun_lock); 5678 retval = lun->backend->config_write((union ctl_io *)ctsio); 5679 } else { 5680 mtx_unlock(&lun->lun_lock); 5681 ctl_set_success(ctsio); 5682 ctl_done((union ctl_io *)ctsio); 5683 } 5684 5685bailout: 5686 5687 return (retval); 5688} 5689 5690int 5691ctl_format(struct ctl_scsiio *ctsio) 5692{ 5693 struct scsi_format *cdb; 5694 struct ctl_lun *lun; 5695 int length, defect_list_len; 5696 5697 CTL_DEBUG_PRINT(("ctl_format\n")); 5698 5699 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5700 5701 cdb = (struct scsi_format *)ctsio->cdb; 5702 5703 length = 0; 5704 if (cdb->byte2 & SF_FMTDATA) { 5705 if (cdb->byte2 & SF_LONGLIST) 5706 length = sizeof(struct scsi_format_header_long); 5707 else 5708 length = sizeof(struct scsi_format_header_short); 5709 } 5710 5711 if (((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) 5712 && (length > 0)) { 5713 ctsio->kern_data_ptr = malloc(length, M_CTL, M_WAITOK); 5714 ctsio->kern_data_len = length; 5715 ctsio->kern_total_len = length; 5716 ctsio->kern_data_resid = 0; 5717 ctsio->kern_rel_offset = 0; 5718 ctsio->kern_sg_entries = 0; 5719 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5720 ctsio->be_move_done = ctl_config_move_done; 5721 ctl_datamove((union ctl_io *)ctsio); 5722 5723 return (CTL_RETVAL_COMPLETE); 5724 } 5725 5726 defect_list_len = 0; 5727 5728 if (cdb->byte2 & SF_FMTDATA) { 5729 if (cdb->byte2 & SF_LONGLIST) { 5730 struct scsi_format_header_long *header; 5731 5732 header = (struct scsi_format_header_long *) 5733 ctsio->kern_data_ptr; 5734 5735 defect_list_len = scsi_4btoul(header->defect_list_len); 5736 if (defect_list_len != 0) { 5737 ctl_set_invalid_field(ctsio, 5738 /*sks_valid*/ 1, 5739 /*command*/ 0, 5740 /*field*/ 2, 5741 /*bit_valid*/ 0, 5742 /*bit*/ 0); 5743 goto bailout; 5744 } 5745 } else { 5746 struct scsi_format_header_short *header; 5747 5748 header = (struct scsi_format_header_short *) 5749 ctsio->kern_data_ptr; 5750 5751 defect_list_len = scsi_2btoul(header->defect_list_len); 5752 if (defect_list_len != 0) { 5753 ctl_set_invalid_field(ctsio, 5754 /*sks_valid*/ 1, 5755 /*command*/ 0, 5756 /*field*/ 2, 5757 /*bit_valid*/ 0, 5758 /*bit*/ 0); 5759 goto bailout; 5760 } 5761 } 5762 } 5763 5764 /* 5765 * The format command will clear out the "Medium format corrupted" 5766 * status if set by the configuration code. That status is really 5767 * just a way to notify the host that we have lost the media, and 5768 * get them to issue a command that will basically make them think 5769 * they're blowing away the media. 5770 */ 5771 mtx_lock(&lun->lun_lock); 5772 lun->flags &= ~CTL_LUN_INOPERABLE; 5773 mtx_unlock(&lun->lun_lock); 5774 5775 ctl_set_success(ctsio); 5776bailout: 5777 5778 if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) { 5779 free(ctsio->kern_data_ptr, M_CTL); 5780 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED; 5781 } 5782 5783 ctl_done((union ctl_io *)ctsio); 5784 return (CTL_RETVAL_COMPLETE); 5785} 5786 5787int 5788ctl_read_buffer(struct ctl_scsiio *ctsio) 5789{ 5790 struct scsi_read_buffer *cdb; 5791 struct ctl_lun *lun; 5792 int buffer_offset, len; 5793 static uint8_t descr[4]; 5794 static uint8_t echo_descr[4] = { 0 }; 5795 5796 CTL_DEBUG_PRINT(("ctl_read_buffer\n")); 5797 5798 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5799 cdb = (struct scsi_read_buffer *)ctsio->cdb; 5800 5801 if ((cdb->byte2 & RWB_MODE) != RWB_MODE_DATA && 5802 (cdb->byte2 & RWB_MODE) != RWB_MODE_ECHO_DESCR && 5803 (cdb->byte2 & RWB_MODE) != RWB_MODE_DESCR) { 5804 ctl_set_invalid_field(ctsio, 5805 /*sks_valid*/ 1, 5806 /*command*/ 1, 5807 /*field*/ 1, 5808 /*bit_valid*/ 1, 5809 /*bit*/ 4); 5810 ctl_done((union ctl_io *)ctsio); 5811 return (CTL_RETVAL_COMPLETE); 5812 } 5813 5814 len = scsi_3btoul(cdb->length); 5815 buffer_offset = scsi_3btoul(cdb->offset); 5816 5817 if (buffer_offset + len > CTL_WRITE_BUFFER_SIZE) { 5818 ctl_set_invalid_field(ctsio, 5819 /*sks_valid*/ 1, 5820 /*command*/ 1, 5821 /*field*/ 6, 5822 /*bit_valid*/ 0, 5823 /*bit*/ 0); 5824 ctl_done((union ctl_io *)ctsio); 5825 return (CTL_RETVAL_COMPLETE); 5826 } 5827 5828 if ((cdb->byte2 & RWB_MODE) == RWB_MODE_DESCR) { 5829 descr[0] = 0; 5830 scsi_ulto3b(CTL_WRITE_BUFFER_SIZE, &descr[1]); 5831 ctsio->kern_data_ptr = descr; 5832 len = min(len, sizeof(descr)); 5833 } else if ((cdb->byte2 & RWB_MODE) == RWB_MODE_ECHO_DESCR) { 5834 ctsio->kern_data_ptr = echo_descr; 5835 len = min(len, sizeof(echo_descr)); 5836 } else { 5837 if (lun->write_buffer == NULL) { 5838 lun->write_buffer = malloc(CTL_WRITE_BUFFER_SIZE, 5839 M_CTL, M_WAITOK); 5840 } 5841 ctsio->kern_data_ptr = lun->write_buffer + buffer_offset; 5842 } 5843 ctsio->kern_data_len = len; 5844 ctsio->kern_total_len = len; 5845 ctsio->kern_data_resid = 0; 5846 ctsio->kern_rel_offset = 0; 5847 ctsio->kern_sg_entries = 0; 5848 ctl_set_success(ctsio); 5849 ctsio->be_move_done = ctl_config_move_done; 5850 ctl_datamove((union ctl_io *)ctsio); 5851 return (CTL_RETVAL_COMPLETE); 5852} 5853 5854int 5855ctl_write_buffer(struct ctl_scsiio *ctsio) 5856{ 5857 struct scsi_write_buffer *cdb; 5858 struct ctl_lun *lun; 5859 int buffer_offset, len; 5860 5861 CTL_DEBUG_PRINT(("ctl_write_buffer\n")); 5862 5863 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5864 cdb = (struct scsi_write_buffer *)ctsio->cdb; 5865 5866 if ((cdb->byte2 & RWB_MODE) != RWB_MODE_DATA) { 5867 ctl_set_invalid_field(ctsio, 5868 /*sks_valid*/ 1, 5869 /*command*/ 1, 5870 /*field*/ 1, 5871 /*bit_valid*/ 1, 5872 /*bit*/ 4); 5873 ctl_done((union ctl_io *)ctsio); 5874 return (CTL_RETVAL_COMPLETE); 5875 } 5876 5877 len = scsi_3btoul(cdb->length); 5878 buffer_offset = scsi_3btoul(cdb->offset); 5879 5880 if (buffer_offset + len > CTL_WRITE_BUFFER_SIZE) { 5881 ctl_set_invalid_field(ctsio, 5882 /*sks_valid*/ 1, 5883 /*command*/ 1, 5884 /*field*/ 6, 5885 /*bit_valid*/ 0, 5886 /*bit*/ 0); 5887 ctl_done((union ctl_io *)ctsio); 5888 return (CTL_RETVAL_COMPLETE); 5889 } 5890 5891 /* 5892 * If we've got a kernel request that hasn't been malloced yet, 5893 * malloc it and tell the caller the data buffer is here. 5894 */ 5895 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 5896 if (lun->write_buffer == NULL) { 5897 lun->write_buffer = malloc(CTL_WRITE_BUFFER_SIZE, 5898 M_CTL, M_WAITOK); 5899 } 5900 ctsio->kern_data_ptr = lun->write_buffer + buffer_offset; 5901 ctsio->kern_data_len = len; 5902 ctsio->kern_total_len = len; 5903 ctsio->kern_data_resid = 0; 5904 ctsio->kern_rel_offset = 0; 5905 ctsio->kern_sg_entries = 0; 5906 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5907 ctsio->be_move_done = ctl_config_move_done; 5908 ctl_datamove((union ctl_io *)ctsio); 5909 5910 return (CTL_RETVAL_COMPLETE); 5911 } 5912 5913 ctl_set_success(ctsio); 5914 ctl_done((union ctl_io *)ctsio); 5915 return (CTL_RETVAL_COMPLETE); 5916} 5917 5918int 5919ctl_write_same(struct ctl_scsiio *ctsio) 5920{ 5921 struct ctl_lun *lun; 5922 struct ctl_lba_len_flags *lbalen; 5923 uint64_t lba; 5924 uint32_t num_blocks; 5925 int len, retval; 5926 uint8_t byte2; 5927 5928 retval = CTL_RETVAL_COMPLETE; 5929 5930 CTL_DEBUG_PRINT(("ctl_write_same\n")); 5931 5932 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5933 5934 switch (ctsio->cdb[0]) { 5935 case WRITE_SAME_10: { 5936 struct scsi_write_same_10 *cdb; 5937 5938 cdb = (struct scsi_write_same_10 *)ctsio->cdb; 5939 5940 lba = scsi_4btoul(cdb->addr); 5941 num_blocks = scsi_2btoul(cdb->length); 5942 byte2 = cdb->byte2; 5943 break; 5944 } 5945 case WRITE_SAME_16: { 5946 struct scsi_write_same_16 *cdb; 5947 5948 cdb = (struct scsi_write_same_16 *)ctsio->cdb; 5949 5950 lba = scsi_8btou64(cdb->addr); 5951 num_blocks = scsi_4btoul(cdb->length); 5952 byte2 = cdb->byte2; 5953 break; 5954 } 5955 default: 5956 /* 5957 * We got a command we don't support. This shouldn't 5958 * happen, commands should be filtered out above us. 5959 */ 5960 ctl_set_invalid_opcode(ctsio); 5961 ctl_done((union ctl_io *)ctsio); 5962 5963 return (CTL_RETVAL_COMPLETE); 5964 break; /* NOTREACHED */ 5965 } 5966 5967 /* NDOB and ANCHOR flags can be used only together with UNMAP */ 5968 if ((byte2 & SWS_UNMAP) == 0 && 5969 (byte2 & (SWS_NDOB | SWS_ANCHOR)) != 0) { 5970 ctl_set_invalid_field(ctsio, /*sks_valid*/ 1, 5971 /*command*/ 1, /*field*/ 1, /*bit_valid*/ 1, /*bit*/ 0); 5972 ctl_done((union ctl_io *)ctsio); 5973 return (CTL_RETVAL_COMPLETE); 5974 } 5975 5976 /* 5977 * The first check is to make sure we're in bounds, the second 5978 * check is to catch wrap-around problems. If the lba + num blocks 5979 * is less than the lba, then we've wrapped around and the block 5980 * range is invalid anyway. 5981 */ 5982 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 5983 || ((lba + num_blocks) < lba)) { 5984 ctl_set_lba_out_of_range(ctsio); 5985 ctl_done((union ctl_io *)ctsio); 5986 return (CTL_RETVAL_COMPLETE); 5987 } 5988 5989 /* Zero number of blocks means "to the last logical block" */ 5990 if (num_blocks == 0) { 5991 if ((lun->be_lun->maxlba + 1) - lba > UINT32_MAX) { 5992 ctl_set_invalid_field(ctsio, 5993 /*sks_valid*/ 0, 5994 /*command*/ 1, 5995 /*field*/ 0, 5996 /*bit_valid*/ 0, 5997 /*bit*/ 0); 5998 ctl_done((union ctl_io *)ctsio); 5999 return (CTL_RETVAL_COMPLETE); 6000 } 6001 num_blocks = (lun->be_lun->maxlba + 1) - lba; 6002 } 6003 6004 len = lun->be_lun->blocksize; 6005 6006 /* 6007 * If we've got a kernel request that hasn't been malloced yet, 6008 * malloc it and tell the caller the data buffer is here. 6009 */ 6010 if ((byte2 & SWS_NDOB) == 0 && 6011 (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 6012 ctsio->kern_data_ptr = malloc(len, M_CTL, M_WAITOK);; 6013 ctsio->kern_data_len = len; 6014 ctsio->kern_total_len = len; 6015 ctsio->kern_data_resid = 0; 6016 ctsio->kern_rel_offset = 0; 6017 ctsio->kern_sg_entries = 0; 6018 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6019 ctsio->be_move_done = ctl_config_move_done; 6020 ctl_datamove((union ctl_io *)ctsio); 6021 6022 return (CTL_RETVAL_COMPLETE); 6023 } 6024 6025 lbalen = (struct ctl_lba_len_flags *)&ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 6026 lbalen->lba = lba; 6027 lbalen->len = num_blocks; 6028 lbalen->flags = byte2; 6029 retval = lun->backend->config_write((union ctl_io *)ctsio); 6030 6031 return (retval); 6032} 6033 6034int 6035ctl_unmap(struct ctl_scsiio *ctsio) 6036{ 6037 struct ctl_lun *lun; 6038 struct scsi_unmap *cdb; 6039 struct ctl_ptr_len_flags *ptrlen; 6040 struct scsi_unmap_header *hdr; 6041 struct scsi_unmap_desc *buf, *end, *endnz, *range; 6042 uint64_t lba; 6043 uint32_t num_blocks; 6044 int len, retval; 6045 uint8_t byte2; 6046 6047 retval = CTL_RETVAL_COMPLETE; 6048 6049 CTL_DEBUG_PRINT(("ctl_unmap\n")); 6050 6051 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6052 cdb = (struct scsi_unmap *)ctsio->cdb; 6053 6054 len = scsi_2btoul(cdb->length); 6055 byte2 = cdb->byte2; 6056 6057 /* 6058 * If we've got a kernel request that hasn't been malloced yet, 6059 * malloc it and tell the caller the data buffer is here. 6060 */ 6061 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 6062 ctsio->kern_data_ptr = malloc(len, M_CTL, M_WAITOK);; 6063 ctsio->kern_data_len = len; 6064 ctsio->kern_total_len = len; 6065 ctsio->kern_data_resid = 0; 6066 ctsio->kern_rel_offset = 0; 6067 ctsio->kern_sg_entries = 0; 6068 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6069 ctsio->be_move_done = ctl_config_move_done; 6070 ctl_datamove((union ctl_io *)ctsio); 6071 6072 return (CTL_RETVAL_COMPLETE); 6073 } 6074 6075 len = ctsio->kern_total_len - ctsio->kern_data_resid; 6076 hdr = (struct scsi_unmap_header *)ctsio->kern_data_ptr; 6077 if (len < sizeof (*hdr) || 6078 len < (scsi_2btoul(hdr->length) + sizeof(hdr->length)) || 6079 len < (scsi_2btoul(hdr->desc_length) + sizeof (*hdr)) || 6080 scsi_2btoul(hdr->desc_length) % sizeof(*buf) != 0) { 6081 ctl_set_invalid_field(ctsio, 6082 /*sks_valid*/ 0, 6083 /*command*/ 0, 6084 /*field*/ 0, 6085 /*bit_valid*/ 0, 6086 /*bit*/ 0); 6087 goto done; 6088 } 6089 len = scsi_2btoul(hdr->desc_length); 6090 buf = (struct scsi_unmap_desc *)(hdr + 1); 6091 end = buf + len / sizeof(*buf); 6092 6093 endnz = buf; 6094 for (range = buf; range < end; range++) { 6095 lba = scsi_8btou64(range->lba); 6096 num_blocks = scsi_4btoul(range->length); 6097 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 6098 || ((lba + num_blocks) < lba)) { 6099 ctl_set_lba_out_of_range(ctsio); 6100 ctl_done((union ctl_io *)ctsio); 6101 return (CTL_RETVAL_COMPLETE); 6102 } 6103 if (num_blocks != 0) 6104 endnz = range + 1; 6105 } 6106 6107 /* 6108 * Block backend can not handle zero last range. 6109 * Filter it out and return if there is nothing left. 6110 */ 6111 len = (uint8_t *)endnz - (uint8_t *)buf; 6112 if (len == 0) { 6113 ctl_set_success(ctsio); 6114 goto done; 6115 } 6116 6117 mtx_lock(&lun->lun_lock); 6118 ptrlen = (struct ctl_ptr_len_flags *) 6119 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 6120 ptrlen->ptr = (void *)buf; 6121 ptrlen->len = len; 6122 ptrlen->flags = byte2; 6123 ctl_check_blocked(lun); 6124 mtx_unlock(&lun->lun_lock); 6125 6126 retval = lun->backend->config_write((union ctl_io *)ctsio); 6127 return (retval); 6128 6129done: 6130 if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) { 6131 free(ctsio->kern_data_ptr, M_CTL); 6132 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED; 6133 } 6134 ctl_done((union ctl_io *)ctsio); 6135 return (CTL_RETVAL_COMPLETE); 6136} 6137 6138/* 6139 * Note that this function currently doesn't actually do anything inside 6140 * CTL to enforce things if the DQue bit is turned on. 6141 * 6142 * Also note that this function can't be used in the default case, because 6143 * the DQue bit isn't set in the changeable mask for the control mode page 6144 * anyway. This is just here as an example for how to implement a page 6145 * handler, and a placeholder in case we want to allow the user to turn 6146 * tagged queueing on and off. 6147 * 6148 * The D_SENSE bit handling is functional, however, and will turn 6149 * descriptor sense on and off for a given LUN. 6150 */ 6151int 6152ctl_control_page_handler(struct ctl_scsiio *ctsio, 6153 struct ctl_page_index *page_index, uint8_t *page_ptr) 6154{ 6155 struct scsi_control_page *current_cp, *saved_cp, *user_cp; 6156 struct ctl_lun *lun; 6157 int set_ua; 6158 uint32_t initidx; 6159 6160 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6161 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 6162 set_ua = 0; 6163 6164 user_cp = (struct scsi_control_page *)page_ptr; 6165 current_cp = (struct scsi_control_page *) 6166 (page_index->page_data + (page_index->page_len * 6167 CTL_PAGE_CURRENT)); 6168 saved_cp = (struct scsi_control_page *) 6169 (page_index->page_data + (page_index->page_len * 6170 CTL_PAGE_SAVED)); 6171 6172 mtx_lock(&lun->lun_lock); 6173 if (((current_cp->rlec & SCP_DSENSE) == 0) 6174 && ((user_cp->rlec & SCP_DSENSE) != 0)) { 6175 /* 6176 * Descriptor sense is currently turned off and the user 6177 * wants to turn it on. 6178 */ 6179 current_cp->rlec |= SCP_DSENSE; 6180 saved_cp->rlec |= SCP_DSENSE; 6181 lun->flags |= CTL_LUN_SENSE_DESC; 6182 set_ua = 1; 6183 } else if (((current_cp->rlec & SCP_DSENSE) != 0) 6184 && ((user_cp->rlec & SCP_DSENSE) == 0)) { 6185 /* 6186 * Descriptor sense is currently turned on, and the user 6187 * wants to turn it off. 6188 */ 6189 current_cp->rlec &= ~SCP_DSENSE; 6190 saved_cp->rlec &= ~SCP_DSENSE; 6191 lun->flags &= ~CTL_LUN_SENSE_DESC; 6192 set_ua = 1; 6193 } 6194 if ((current_cp->queue_flags & SCP_QUEUE_ALG_MASK) != 6195 (user_cp->queue_flags & SCP_QUEUE_ALG_MASK)) { 6196 current_cp->queue_flags &= ~SCP_QUEUE_ALG_MASK; 6197 current_cp->queue_flags |= user_cp->queue_flags & SCP_QUEUE_ALG_MASK; 6198 saved_cp->queue_flags &= ~SCP_QUEUE_ALG_MASK; 6199 saved_cp->queue_flags |= user_cp->queue_flags & SCP_QUEUE_ALG_MASK; 6200 set_ua = 1; 6201 } 6202 if ((current_cp->eca_and_aen & SCP_SWP) != 6203 (user_cp->eca_and_aen & SCP_SWP)) { 6204 current_cp->eca_and_aen &= ~SCP_SWP; 6205 current_cp->eca_and_aen |= user_cp->eca_and_aen & SCP_SWP; 6206 saved_cp->eca_and_aen &= ~SCP_SWP; 6207 saved_cp->eca_and_aen |= user_cp->eca_and_aen & SCP_SWP; 6208 set_ua = 1; 6209 } 6210 if (set_ua != 0) 6211 ctl_est_ua_all(lun, initidx, CTL_UA_MODE_CHANGE); 6212 mtx_unlock(&lun->lun_lock); 6213 6214 return (0); 6215} 6216 6217int 6218ctl_caching_sp_handler(struct ctl_scsiio *ctsio, 6219 struct ctl_page_index *page_index, uint8_t *page_ptr) 6220{ 6221 struct scsi_caching_page *current_cp, *saved_cp, *user_cp; 6222 struct ctl_lun *lun; 6223 int set_ua; 6224 uint32_t initidx; 6225 6226 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6227 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 6228 set_ua = 0; 6229 6230 user_cp = (struct scsi_caching_page *)page_ptr; 6231 current_cp = (struct scsi_caching_page *) 6232 (page_index->page_data + (page_index->page_len * 6233 CTL_PAGE_CURRENT)); 6234 saved_cp = (struct scsi_caching_page *) 6235 (page_index->page_data + (page_index->page_len * 6236 CTL_PAGE_SAVED)); 6237 6238 mtx_lock(&lun->lun_lock); 6239 if ((current_cp->flags1 & (SCP_WCE | SCP_RCD)) != 6240 (user_cp->flags1 & (SCP_WCE | SCP_RCD))) { 6241 current_cp->flags1 &= ~(SCP_WCE | SCP_RCD); 6242 current_cp->flags1 |= user_cp->flags1 & (SCP_WCE | SCP_RCD); 6243 saved_cp->flags1 &= ~(SCP_WCE | SCP_RCD); 6244 saved_cp->flags1 |= user_cp->flags1 & (SCP_WCE | SCP_RCD); 6245 set_ua = 1; 6246 } 6247 if (set_ua != 0) 6248 ctl_est_ua_all(lun, initidx, CTL_UA_MODE_CHANGE); 6249 mtx_unlock(&lun->lun_lock); 6250 6251 return (0); 6252} 6253 6254int 6255ctl_debugconf_sp_select_handler(struct ctl_scsiio *ctsio, 6256 struct ctl_page_index *page_index, 6257 uint8_t *page_ptr) 6258{ 6259 uint8_t *c; 6260 int i; 6261 6262 c = ((struct copan_debugconf_subpage *)page_ptr)->ctl_time_io_secs; 6263 ctl_time_io_secs = 6264 (c[0] << 8) | 6265 (c[1] << 0) | 6266 0; 6267 CTL_DEBUG_PRINT(("set ctl_time_io_secs to %d\n", ctl_time_io_secs)); 6268 printf("set ctl_time_io_secs to %d\n", ctl_time_io_secs); 6269 printf("page data:"); 6270 for (i=0; i<8; i++) 6271 printf(" %.2x",page_ptr[i]); 6272 printf("\n"); 6273 return (0); 6274} 6275 6276int 6277ctl_debugconf_sp_sense_handler(struct ctl_scsiio *ctsio, 6278 struct ctl_page_index *page_index, 6279 int pc) 6280{ 6281 struct copan_debugconf_subpage *page; 6282 6283 page = (struct copan_debugconf_subpage *)page_index->page_data + 6284 (page_index->page_len * pc); 6285 6286 switch (pc) { 6287 case SMS_PAGE_CTRL_CHANGEABLE >> 6: 6288 case SMS_PAGE_CTRL_DEFAULT >> 6: 6289 case SMS_PAGE_CTRL_SAVED >> 6: 6290 /* 6291 * We don't update the changable or default bits for this page. 6292 */ 6293 break; 6294 case SMS_PAGE_CTRL_CURRENT >> 6: 6295 page->ctl_time_io_secs[0] = ctl_time_io_secs >> 8; 6296 page->ctl_time_io_secs[1] = ctl_time_io_secs >> 0; 6297 break; 6298 default: 6299#ifdef NEEDTOPORT 6300 EPRINT(0, "Invalid PC %d!!", pc); 6301#endif /* NEEDTOPORT */ 6302 break; 6303 } 6304 return (0); 6305} 6306 6307 6308static int 6309ctl_do_mode_select(union ctl_io *io) 6310{ 6311 struct scsi_mode_page_header *page_header; 6312 struct ctl_page_index *page_index; 6313 struct ctl_scsiio *ctsio; 6314 int control_dev, page_len; 6315 int page_len_offset, page_len_size; 6316 union ctl_modepage_info *modepage_info; 6317 struct ctl_lun *lun; 6318 int *len_left, *len_used; 6319 int retval, i; 6320 6321 ctsio = &io->scsiio; 6322 page_index = NULL; 6323 page_len = 0; 6324 retval = CTL_RETVAL_COMPLETE; 6325 6326 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6327 6328 if (lun->be_lun->lun_type != T_DIRECT) 6329 control_dev = 1; 6330 else 6331 control_dev = 0; 6332 6333 modepage_info = (union ctl_modepage_info *) 6334 ctsio->io_hdr.ctl_private[CTL_PRIV_MODEPAGE].bytes; 6335 len_left = &modepage_info->header.len_left; 6336 len_used = &modepage_info->header.len_used; 6337 6338do_next_page: 6339 6340 page_header = (struct scsi_mode_page_header *) 6341 (ctsio->kern_data_ptr + *len_used); 6342 6343 if (*len_left == 0) { 6344 free(ctsio->kern_data_ptr, M_CTL); 6345 ctl_set_success(ctsio); 6346 ctl_done((union ctl_io *)ctsio); 6347 return (CTL_RETVAL_COMPLETE); 6348 } else if (*len_left < sizeof(struct scsi_mode_page_header)) { 6349 6350 free(ctsio->kern_data_ptr, M_CTL); 6351 ctl_set_param_len_error(ctsio); 6352 ctl_done((union ctl_io *)ctsio); 6353 return (CTL_RETVAL_COMPLETE); 6354 6355 } else if ((page_header->page_code & SMPH_SPF) 6356 && (*len_left < sizeof(struct scsi_mode_page_header_sp))) { 6357 6358 free(ctsio->kern_data_ptr, M_CTL); 6359 ctl_set_param_len_error(ctsio); 6360 ctl_done((union ctl_io *)ctsio); 6361 return (CTL_RETVAL_COMPLETE); 6362 } 6363 6364 6365 /* 6366 * XXX KDM should we do something with the block descriptor? 6367 */ 6368 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6369 6370 if ((control_dev != 0) 6371 && (lun->mode_pages.index[i].page_flags & 6372 CTL_PAGE_FLAG_DISK_ONLY)) 6373 continue; 6374 6375 if ((lun->mode_pages.index[i].page_code & SMPH_PC_MASK) != 6376 (page_header->page_code & SMPH_PC_MASK)) 6377 continue; 6378 6379 /* 6380 * If neither page has a subpage code, then we've got a 6381 * match. 6382 */ 6383 if (((lun->mode_pages.index[i].page_code & SMPH_SPF) == 0) 6384 && ((page_header->page_code & SMPH_SPF) == 0)) { 6385 page_index = &lun->mode_pages.index[i]; 6386 page_len = page_header->page_length; 6387 break; 6388 } 6389 6390 /* 6391 * If both pages have subpages, then the subpage numbers 6392 * have to match. 6393 */ 6394 if ((lun->mode_pages.index[i].page_code & SMPH_SPF) 6395 && (page_header->page_code & SMPH_SPF)) { 6396 struct scsi_mode_page_header_sp *sph; 6397 6398 sph = (struct scsi_mode_page_header_sp *)page_header; 6399 6400 if (lun->mode_pages.index[i].subpage == 6401 sph->subpage) { 6402 page_index = &lun->mode_pages.index[i]; 6403 page_len = scsi_2btoul(sph->page_length); 6404 break; 6405 } 6406 } 6407 } 6408 6409 /* 6410 * If we couldn't find the page, or if we don't have a mode select 6411 * handler for it, send back an error to the user. 6412 */ 6413 if ((page_index == NULL) 6414 || (page_index->select_handler == NULL)) { 6415 ctl_set_invalid_field(ctsio, 6416 /*sks_valid*/ 1, 6417 /*command*/ 0, 6418 /*field*/ *len_used, 6419 /*bit_valid*/ 0, 6420 /*bit*/ 0); 6421 free(ctsio->kern_data_ptr, M_CTL); 6422 ctl_done((union ctl_io *)ctsio); 6423 return (CTL_RETVAL_COMPLETE); 6424 } 6425 6426 if (page_index->page_code & SMPH_SPF) { 6427 page_len_offset = 2; 6428 page_len_size = 2; 6429 } else { 6430 page_len_size = 1; 6431 page_len_offset = 1; 6432 } 6433 6434 /* 6435 * If the length the initiator gives us isn't the one we specify in 6436 * the mode page header, or if they didn't specify enough data in 6437 * the CDB to avoid truncating this page, kick out the request. 6438 */ 6439 if ((page_len != (page_index->page_len - page_len_offset - 6440 page_len_size)) 6441 || (*len_left < page_index->page_len)) { 6442 6443 6444 ctl_set_invalid_field(ctsio, 6445 /*sks_valid*/ 1, 6446 /*command*/ 0, 6447 /*field*/ *len_used + page_len_offset, 6448 /*bit_valid*/ 0, 6449 /*bit*/ 0); 6450 free(ctsio->kern_data_ptr, M_CTL); 6451 ctl_done((union ctl_io *)ctsio); 6452 return (CTL_RETVAL_COMPLETE); 6453 } 6454 6455 /* 6456 * Run through the mode page, checking to make sure that the bits 6457 * the user changed are actually legal for him to change. 6458 */ 6459 for (i = 0; i < page_index->page_len; i++) { 6460 uint8_t *user_byte, *change_mask, *current_byte; 6461 int bad_bit; 6462 int j; 6463 6464 user_byte = (uint8_t *)page_header + i; 6465 change_mask = page_index->page_data + 6466 (page_index->page_len * CTL_PAGE_CHANGEABLE) + i; 6467 current_byte = page_index->page_data + 6468 (page_index->page_len * CTL_PAGE_CURRENT) + i; 6469 6470 /* 6471 * Check to see whether the user set any bits in this byte 6472 * that he is not allowed to set. 6473 */ 6474 if ((*user_byte & ~(*change_mask)) == 6475 (*current_byte & ~(*change_mask))) 6476 continue; 6477 6478 /* 6479 * Go through bit by bit to determine which one is illegal. 6480 */ 6481 bad_bit = 0; 6482 for (j = 7; j >= 0; j--) { 6483 if ((((1 << i) & ~(*change_mask)) & *user_byte) != 6484 (((1 << i) & ~(*change_mask)) & *current_byte)) { 6485 bad_bit = i; 6486 break; 6487 } 6488 } 6489 ctl_set_invalid_field(ctsio, 6490 /*sks_valid*/ 1, 6491 /*command*/ 0, 6492 /*field*/ *len_used + i, 6493 /*bit_valid*/ 1, 6494 /*bit*/ bad_bit); 6495 free(ctsio->kern_data_ptr, M_CTL); 6496 ctl_done((union ctl_io *)ctsio); 6497 return (CTL_RETVAL_COMPLETE); 6498 } 6499 6500 /* 6501 * Decrement these before we call the page handler, since we may 6502 * end up getting called back one way or another before the handler 6503 * returns to this context. 6504 */ 6505 *len_left -= page_index->page_len; 6506 *len_used += page_index->page_len; 6507 6508 retval = page_index->select_handler(ctsio, page_index, 6509 (uint8_t *)page_header); 6510 6511 /* 6512 * If the page handler returns CTL_RETVAL_QUEUED, then we need to 6513 * wait until this queued command completes to finish processing 6514 * the mode page. If it returns anything other than 6515 * CTL_RETVAL_COMPLETE (e.g. CTL_RETVAL_ERROR), then it should have 6516 * already set the sense information, freed the data pointer, and 6517 * completed the io for us. 6518 */ 6519 if (retval != CTL_RETVAL_COMPLETE) 6520 goto bailout_no_done; 6521 6522 /* 6523 * If the initiator sent us more than one page, parse the next one. 6524 */ 6525 if (*len_left > 0) 6526 goto do_next_page; 6527 6528 ctl_set_success(ctsio); 6529 free(ctsio->kern_data_ptr, M_CTL); 6530 ctl_done((union ctl_io *)ctsio); 6531 6532bailout_no_done: 6533 6534 return (CTL_RETVAL_COMPLETE); 6535 6536} 6537 6538int 6539ctl_mode_select(struct ctl_scsiio *ctsio) 6540{ 6541 int param_len, pf, sp; 6542 int header_size, bd_len; 6543 int len_left, len_used; 6544 struct ctl_page_index *page_index; 6545 struct ctl_lun *lun; 6546 int control_dev, page_len; 6547 union ctl_modepage_info *modepage_info; 6548 int retval; 6549 6550 pf = 0; 6551 sp = 0; 6552 page_len = 0; 6553 len_used = 0; 6554 len_left = 0; 6555 retval = 0; 6556 bd_len = 0; 6557 page_index = NULL; 6558 6559 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6560 6561 if (lun->be_lun->lun_type != T_DIRECT) 6562 control_dev = 1; 6563 else 6564 control_dev = 0; 6565 6566 switch (ctsio->cdb[0]) { 6567 case MODE_SELECT_6: { 6568 struct scsi_mode_select_6 *cdb; 6569 6570 cdb = (struct scsi_mode_select_6 *)ctsio->cdb; 6571 6572 pf = (cdb->byte2 & SMS_PF) ? 1 : 0; 6573 sp = (cdb->byte2 & SMS_SP) ? 1 : 0; 6574 6575 param_len = cdb->length; 6576 header_size = sizeof(struct scsi_mode_header_6); 6577 break; 6578 } 6579 case MODE_SELECT_10: { 6580 struct scsi_mode_select_10 *cdb; 6581 6582 cdb = (struct scsi_mode_select_10 *)ctsio->cdb; 6583 6584 pf = (cdb->byte2 & SMS_PF) ? 1 : 0; 6585 sp = (cdb->byte2 & SMS_SP) ? 1 : 0; 6586 6587 param_len = scsi_2btoul(cdb->length); 6588 header_size = sizeof(struct scsi_mode_header_10); 6589 break; 6590 } 6591 default: 6592 ctl_set_invalid_opcode(ctsio); 6593 ctl_done((union ctl_io *)ctsio); 6594 return (CTL_RETVAL_COMPLETE); 6595 break; /* NOTREACHED */ 6596 } 6597 6598 /* 6599 * From SPC-3: 6600 * "A parameter list length of zero indicates that the Data-Out Buffer 6601 * shall be empty. This condition shall not be considered as an error." 6602 */ 6603 if (param_len == 0) { 6604 ctl_set_success(ctsio); 6605 ctl_done((union ctl_io *)ctsio); 6606 return (CTL_RETVAL_COMPLETE); 6607 } 6608 6609 /* 6610 * Since we'll hit this the first time through, prior to 6611 * allocation, we don't need to free a data buffer here. 6612 */ 6613 if (param_len < header_size) { 6614 ctl_set_param_len_error(ctsio); 6615 ctl_done((union ctl_io *)ctsio); 6616 return (CTL_RETVAL_COMPLETE); 6617 } 6618 6619 /* 6620 * Allocate the data buffer and grab the user's data. In theory, 6621 * we shouldn't have to sanity check the parameter list length here 6622 * because the maximum size is 64K. We should be able to malloc 6623 * that much without too many problems. 6624 */ 6625 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 6626 ctsio->kern_data_ptr = malloc(param_len, M_CTL, M_WAITOK); 6627 ctsio->kern_data_len = param_len; 6628 ctsio->kern_total_len = param_len; 6629 ctsio->kern_data_resid = 0; 6630 ctsio->kern_rel_offset = 0; 6631 ctsio->kern_sg_entries = 0; 6632 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6633 ctsio->be_move_done = ctl_config_move_done; 6634 ctl_datamove((union ctl_io *)ctsio); 6635 6636 return (CTL_RETVAL_COMPLETE); 6637 } 6638 6639 switch (ctsio->cdb[0]) { 6640 case MODE_SELECT_6: { 6641 struct scsi_mode_header_6 *mh6; 6642 6643 mh6 = (struct scsi_mode_header_6 *)ctsio->kern_data_ptr; 6644 bd_len = mh6->blk_desc_len; 6645 break; 6646 } 6647 case MODE_SELECT_10: { 6648 struct scsi_mode_header_10 *mh10; 6649 6650 mh10 = (struct scsi_mode_header_10 *)ctsio->kern_data_ptr; 6651 bd_len = scsi_2btoul(mh10->blk_desc_len); 6652 break; 6653 } 6654 default: 6655 panic("Invalid CDB type %#x", ctsio->cdb[0]); 6656 break; 6657 } 6658 6659 if (param_len < (header_size + bd_len)) { 6660 free(ctsio->kern_data_ptr, M_CTL); 6661 ctl_set_param_len_error(ctsio); 6662 ctl_done((union ctl_io *)ctsio); 6663 return (CTL_RETVAL_COMPLETE); 6664 } 6665 6666 /* 6667 * Set the IO_CONT flag, so that if this I/O gets passed to 6668 * ctl_config_write_done(), it'll get passed back to 6669 * ctl_do_mode_select() for further processing, or completion if 6670 * we're all done. 6671 */ 6672 ctsio->io_hdr.flags |= CTL_FLAG_IO_CONT; 6673 ctsio->io_cont = ctl_do_mode_select; 6674 6675 modepage_info = (union ctl_modepage_info *) 6676 ctsio->io_hdr.ctl_private[CTL_PRIV_MODEPAGE].bytes; 6677 6678 memset(modepage_info, 0, sizeof(*modepage_info)); 6679 6680 len_left = param_len - header_size - bd_len; 6681 len_used = header_size + bd_len; 6682 6683 modepage_info->header.len_left = len_left; 6684 modepage_info->header.len_used = len_used; 6685 6686 return (ctl_do_mode_select((union ctl_io *)ctsio)); 6687} 6688 6689int 6690ctl_mode_sense(struct ctl_scsiio *ctsio) 6691{ 6692 struct ctl_lun *lun; 6693 int pc, page_code, dbd, llba, subpage; 6694 int alloc_len, page_len, header_len, total_len; 6695 struct scsi_mode_block_descr *block_desc; 6696 struct ctl_page_index *page_index; 6697 int control_dev; 6698 6699 dbd = 0; 6700 llba = 0; 6701 block_desc = NULL; 6702 page_index = NULL; 6703 6704 CTL_DEBUG_PRINT(("ctl_mode_sense\n")); 6705 6706 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6707 6708 if (lun->be_lun->lun_type != T_DIRECT) 6709 control_dev = 1; 6710 else 6711 control_dev = 0; 6712 6713 switch (ctsio->cdb[0]) { 6714 case MODE_SENSE_6: { 6715 struct scsi_mode_sense_6 *cdb; 6716 6717 cdb = (struct scsi_mode_sense_6 *)ctsio->cdb; 6718 6719 header_len = sizeof(struct scsi_mode_hdr_6); 6720 if (cdb->byte2 & SMS_DBD) 6721 dbd = 1; 6722 else 6723 header_len += sizeof(struct scsi_mode_block_descr); 6724 6725 pc = (cdb->page & SMS_PAGE_CTRL_MASK) >> 6; 6726 page_code = cdb->page & SMS_PAGE_CODE; 6727 subpage = cdb->subpage; 6728 alloc_len = cdb->length; 6729 break; 6730 } 6731 case MODE_SENSE_10: { 6732 struct scsi_mode_sense_10 *cdb; 6733 6734 cdb = (struct scsi_mode_sense_10 *)ctsio->cdb; 6735 6736 header_len = sizeof(struct scsi_mode_hdr_10); 6737 6738 if (cdb->byte2 & SMS_DBD) 6739 dbd = 1; 6740 else 6741 header_len += sizeof(struct scsi_mode_block_descr); 6742 if (cdb->byte2 & SMS10_LLBAA) 6743 llba = 1; 6744 pc = (cdb->page & SMS_PAGE_CTRL_MASK) >> 6; 6745 page_code = cdb->page & SMS_PAGE_CODE; 6746 subpage = cdb->subpage; 6747 alloc_len = scsi_2btoul(cdb->length); 6748 break; 6749 } 6750 default: 6751 ctl_set_invalid_opcode(ctsio); 6752 ctl_done((union ctl_io *)ctsio); 6753 return (CTL_RETVAL_COMPLETE); 6754 break; /* NOTREACHED */ 6755 } 6756 6757 /* 6758 * We have to make a first pass through to calculate the size of 6759 * the pages that match the user's query. Then we allocate enough 6760 * memory to hold it, and actually copy the data into the buffer. 6761 */ 6762 switch (page_code) { 6763 case SMS_ALL_PAGES_PAGE: { 6764 int i; 6765 6766 page_len = 0; 6767 6768 /* 6769 * At the moment, values other than 0 and 0xff here are 6770 * reserved according to SPC-3. 6771 */ 6772 if ((subpage != SMS_SUBPAGE_PAGE_0) 6773 && (subpage != SMS_SUBPAGE_ALL)) { 6774 ctl_set_invalid_field(ctsio, 6775 /*sks_valid*/ 1, 6776 /*command*/ 1, 6777 /*field*/ 3, 6778 /*bit_valid*/ 0, 6779 /*bit*/ 0); 6780 ctl_done((union ctl_io *)ctsio); 6781 return (CTL_RETVAL_COMPLETE); 6782 } 6783 6784 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6785 if ((control_dev != 0) 6786 && (lun->mode_pages.index[i].page_flags & 6787 CTL_PAGE_FLAG_DISK_ONLY)) 6788 continue; 6789 6790 /* 6791 * We don't use this subpage if the user didn't 6792 * request all subpages. 6793 */ 6794 if ((lun->mode_pages.index[i].subpage != 0) 6795 && (subpage == SMS_SUBPAGE_PAGE_0)) 6796 continue; 6797 6798#if 0 6799 printf("found page %#x len %d\n", 6800 lun->mode_pages.index[i].page_code & 6801 SMPH_PC_MASK, 6802 lun->mode_pages.index[i].page_len); 6803#endif 6804 page_len += lun->mode_pages.index[i].page_len; 6805 } 6806 break; 6807 } 6808 default: { 6809 int i; 6810 6811 page_len = 0; 6812 6813 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6814 /* Look for the right page code */ 6815 if ((lun->mode_pages.index[i].page_code & 6816 SMPH_PC_MASK) != page_code) 6817 continue; 6818 6819 /* Look for the right subpage or the subpage wildcard*/ 6820 if ((lun->mode_pages.index[i].subpage != subpage) 6821 && (subpage != SMS_SUBPAGE_ALL)) 6822 continue; 6823 6824 /* Make sure the page is supported for this dev type */ 6825 if ((control_dev != 0) 6826 && (lun->mode_pages.index[i].page_flags & 6827 CTL_PAGE_FLAG_DISK_ONLY)) 6828 continue; 6829 6830#if 0 6831 printf("found page %#x len %d\n", 6832 lun->mode_pages.index[i].page_code & 6833 SMPH_PC_MASK, 6834 lun->mode_pages.index[i].page_len); 6835#endif 6836 6837 page_len += lun->mode_pages.index[i].page_len; 6838 } 6839 6840 if (page_len == 0) { 6841 ctl_set_invalid_field(ctsio, 6842 /*sks_valid*/ 1, 6843 /*command*/ 1, 6844 /*field*/ 2, 6845 /*bit_valid*/ 1, 6846 /*bit*/ 5); 6847 ctl_done((union ctl_io *)ctsio); 6848 return (CTL_RETVAL_COMPLETE); 6849 } 6850 break; 6851 } 6852 } 6853 6854 total_len = header_len + page_len; 6855#if 0 6856 printf("header_len = %d, page_len = %d, total_len = %d\n", 6857 header_len, page_len, total_len); 6858#endif 6859 6860 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 6861 ctsio->kern_sg_entries = 0; 6862 ctsio->kern_data_resid = 0; 6863 ctsio->kern_rel_offset = 0; 6864 if (total_len < alloc_len) { 6865 ctsio->residual = alloc_len - total_len; 6866 ctsio->kern_data_len = total_len; 6867 ctsio->kern_total_len = total_len; 6868 } else { 6869 ctsio->residual = 0; 6870 ctsio->kern_data_len = alloc_len; 6871 ctsio->kern_total_len = alloc_len; 6872 } 6873 6874 switch (ctsio->cdb[0]) { 6875 case MODE_SENSE_6: { 6876 struct scsi_mode_hdr_6 *header; 6877 6878 header = (struct scsi_mode_hdr_6 *)ctsio->kern_data_ptr; 6879 6880 header->datalen = MIN(total_len - 1, 254); 6881 if (control_dev == 0) { 6882 header->dev_specific = 0x10; /* DPOFUA */ 6883 if ((lun->flags & CTL_LUN_READONLY) || 6884 (lun->mode_pages.control_page[CTL_PAGE_CURRENT] 6885 .eca_and_aen & SCP_SWP) != 0) 6886 header->dev_specific |= 0x80; /* WP */ 6887 } 6888 if (dbd) 6889 header->block_descr_len = 0; 6890 else 6891 header->block_descr_len = 6892 sizeof(struct scsi_mode_block_descr); 6893 block_desc = (struct scsi_mode_block_descr *)&header[1]; 6894 break; 6895 } 6896 case MODE_SENSE_10: { 6897 struct scsi_mode_hdr_10 *header; 6898 int datalen; 6899 6900 header = (struct scsi_mode_hdr_10 *)ctsio->kern_data_ptr; 6901 6902 datalen = MIN(total_len - 2, 65533); 6903 scsi_ulto2b(datalen, header->datalen); 6904 if (control_dev == 0) { 6905 header->dev_specific = 0x10; /* DPOFUA */ 6906 if ((lun->flags & CTL_LUN_READONLY) || 6907 (lun->mode_pages.control_page[CTL_PAGE_CURRENT] 6908 .eca_and_aen & SCP_SWP) != 0) 6909 header->dev_specific |= 0x80; /* WP */ 6910 } 6911 if (dbd) 6912 scsi_ulto2b(0, header->block_descr_len); 6913 else 6914 scsi_ulto2b(sizeof(struct scsi_mode_block_descr), 6915 header->block_descr_len); 6916 block_desc = (struct scsi_mode_block_descr *)&header[1]; 6917 break; 6918 } 6919 default: 6920 panic("invalid CDB type %#x", ctsio->cdb[0]); 6921 break; /* NOTREACHED */ 6922 } 6923 6924 /* 6925 * If we've got a disk, use its blocksize in the block 6926 * descriptor. Otherwise, just set it to 0. 6927 */ 6928 if (dbd == 0) { 6929 if (control_dev == 0) 6930 scsi_ulto3b(lun->be_lun->blocksize, 6931 block_desc->block_len); 6932 else 6933 scsi_ulto3b(0, block_desc->block_len); 6934 } 6935 6936 switch (page_code) { 6937 case SMS_ALL_PAGES_PAGE: { 6938 int i, data_used; 6939 6940 data_used = header_len; 6941 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6942 struct ctl_page_index *page_index; 6943 6944 page_index = &lun->mode_pages.index[i]; 6945 6946 if ((control_dev != 0) 6947 && (page_index->page_flags & 6948 CTL_PAGE_FLAG_DISK_ONLY)) 6949 continue; 6950 6951 /* 6952 * We don't use this subpage if the user didn't 6953 * request all subpages. We already checked (above) 6954 * to make sure the user only specified a subpage 6955 * of 0 or 0xff in the SMS_ALL_PAGES_PAGE case. 6956 */ 6957 if ((page_index->subpage != 0) 6958 && (subpage == SMS_SUBPAGE_PAGE_0)) 6959 continue; 6960 6961 /* 6962 * Call the handler, if it exists, to update the 6963 * page to the latest values. 6964 */ 6965 if (page_index->sense_handler != NULL) 6966 page_index->sense_handler(ctsio, page_index,pc); 6967 6968 memcpy(ctsio->kern_data_ptr + data_used, 6969 page_index->page_data + 6970 (page_index->page_len * pc), 6971 page_index->page_len); 6972 data_used += page_index->page_len; 6973 } 6974 break; 6975 } 6976 default: { 6977 int i, data_used; 6978 6979 data_used = header_len; 6980 6981 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6982 struct ctl_page_index *page_index; 6983 6984 page_index = &lun->mode_pages.index[i]; 6985 6986 /* Look for the right page code */ 6987 if ((page_index->page_code & SMPH_PC_MASK) != page_code) 6988 continue; 6989 6990 /* Look for the right subpage or the subpage wildcard*/ 6991 if ((page_index->subpage != subpage) 6992 && (subpage != SMS_SUBPAGE_ALL)) 6993 continue; 6994 6995 /* Make sure the page is supported for this dev type */ 6996 if ((control_dev != 0) 6997 && (page_index->page_flags & 6998 CTL_PAGE_FLAG_DISK_ONLY)) 6999 continue; 7000 7001 /* 7002 * Call the handler, if it exists, to update the 7003 * page to the latest values. 7004 */ 7005 if (page_index->sense_handler != NULL) 7006 page_index->sense_handler(ctsio, page_index,pc); 7007 7008 memcpy(ctsio->kern_data_ptr + data_used, 7009 page_index->page_data + 7010 (page_index->page_len * pc), 7011 page_index->page_len); 7012 data_used += page_index->page_len; 7013 } 7014 break; 7015 } 7016 } 7017 7018 ctl_set_success(ctsio); 7019 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7020 ctsio->be_move_done = ctl_config_move_done; 7021 ctl_datamove((union ctl_io *)ctsio); 7022 return (CTL_RETVAL_COMPLETE); 7023} 7024 7025int 7026ctl_lbp_log_sense_handler(struct ctl_scsiio *ctsio, 7027 struct ctl_page_index *page_index, 7028 int pc) 7029{ 7030 struct ctl_lun *lun; 7031 struct scsi_log_param_header *phdr; 7032 uint8_t *data; 7033 uint64_t val; 7034 7035 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7036 data = page_index->page_data; 7037 7038 if (lun->backend->lun_attr != NULL && 7039 (val = lun->backend->lun_attr(lun->be_lun->be_lun, "blocksavail")) 7040 != UINT64_MAX) { 7041 phdr = (struct scsi_log_param_header *)data; 7042 scsi_ulto2b(0x0001, phdr->param_code); 7043 phdr->param_control = SLP_LBIN | SLP_LP; 7044 phdr->param_len = 8; 7045 data = (uint8_t *)(phdr + 1); 7046 scsi_ulto4b(val >> CTL_LBP_EXPONENT, data); 7047 data[4] = 0x02; /* per-pool */ 7048 data += phdr->param_len; 7049 } 7050 7051 if (lun->backend->lun_attr != NULL && 7052 (val = lun->backend->lun_attr(lun->be_lun->be_lun, "blocksused")) 7053 != UINT64_MAX) { 7054 phdr = (struct scsi_log_param_header *)data; 7055 scsi_ulto2b(0x0002, phdr->param_code); 7056 phdr->param_control = SLP_LBIN | SLP_LP; 7057 phdr->param_len = 8; 7058 data = (uint8_t *)(phdr + 1); 7059 scsi_ulto4b(val >> CTL_LBP_EXPONENT, data); 7060 data[4] = 0x01; /* per-LUN */ 7061 data += phdr->param_len; 7062 } 7063 7064 if (lun->backend->lun_attr != NULL && 7065 (val = lun->backend->lun_attr(lun->be_lun->be_lun, "poolblocksavail")) 7066 != UINT64_MAX) { 7067 phdr = (struct scsi_log_param_header *)data; 7068 scsi_ulto2b(0x00f1, phdr->param_code); 7069 phdr->param_control = SLP_LBIN | SLP_LP; 7070 phdr->param_len = 8; 7071 data = (uint8_t *)(phdr + 1); 7072 scsi_ulto4b(val >> CTL_LBP_EXPONENT, data); 7073 data[4] = 0x02; /* per-pool */ 7074 data += phdr->param_len; 7075 } 7076 7077 if (lun->backend->lun_attr != NULL && 7078 (val = lun->backend->lun_attr(lun->be_lun->be_lun, "poolblocksused")) 7079 != UINT64_MAX) { 7080 phdr = (struct scsi_log_param_header *)data; 7081 scsi_ulto2b(0x00f2, phdr->param_code); 7082 phdr->param_control = SLP_LBIN | SLP_LP; 7083 phdr->param_len = 8; 7084 data = (uint8_t *)(phdr + 1); 7085 scsi_ulto4b(val >> CTL_LBP_EXPONENT, data); 7086 data[4] = 0x02; /* per-pool */ 7087 data += phdr->param_len; 7088 } 7089 7090 page_index->page_len = data - page_index->page_data; 7091 return (0); 7092} 7093 7094int 7095ctl_sap_log_sense_handler(struct ctl_scsiio *ctsio, 7096 struct ctl_page_index *page_index, 7097 int pc) 7098{ 7099 struct ctl_lun *lun; 7100 struct stat_page *data; 7101 uint64_t rn, wn, rb, wb; 7102 struct bintime rt, wt; 7103 int i; 7104 7105 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7106 data = (struct stat_page *)page_index->page_data; 7107 7108 scsi_ulto2b(SLP_SAP, data->sap.hdr.param_code); 7109 data->sap.hdr.param_control = SLP_LBIN; 7110 data->sap.hdr.param_len = sizeof(struct scsi_log_stat_and_perf) - 7111 sizeof(struct scsi_log_param_header); 7112 rn = wn = rb = wb = 0; 7113 bintime_clear(&rt); 7114 bintime_clear(&wt); 7115 for (i = 0; i < CTL_MAX_PORTS; i++) { 7116 rn += lun->stats.ports[i].operations[CTL_STATS_READ]; 7117 wn += lun->stats.ports[i].operations[CTL_STATS_WRITE]; 7118 rb += lun->stats.ports[i].bytes[CTL_STATS_READ]; 7119 wb += lun->stats.ports[i].bytes[CTL_STATS_WRITE]; 7120 bintime_add(&rt, &lun->stats.ports[i].time[CTL_STATS_READ]); 7121 bintime_add(&wt, &lun->stats.ports[i].time[CTL_STATS_WRITE]); 7122 } 7123 scsi_u64to8b(rn, data->sap.read_num); 7124 scsi_u64to8b(wn, data->sap.write_num); 7125 if (lun->stats.blocksize > 0) { 7126 scsi_u64to8b(wb / lun->stats.blocksize, 7127 data->sap.recvieved_lba); 7128 scsi_u64to8b(rb / lun->stats.blocksize, 7129 data->sap.transmitted_lba); 7130 } 7131 scsi_u64to8b((uint64_t)rt.sec * 1000 + rt.frac / (UINT64_MAX / 1000), 7132 data->sap.read_int); 7133 scsi_u64to8b((uint64_t)wt.sec * 1000 + wt.frac / (UINT64_MAX / 1000), 7134 data->sap.write_int); 7135 scsi_u64to8b(0, data->sap.weighted_num); 7136 scsi_u64to8b(0, data->sap.weighted_int); 7137 scsi_ulto2b(SLP_IT, data->it.hdr.param_code); 7138 data->it.hdr.param_control = SLP_LBIN; 7139 data->it.hdr.param_len = sizeof(struct scsi_log_idle_time) - 7140 sizeof(struct scsi_log_param_header); 7141#ifdef CTL_TIME_IO 7142 scsi_u64to8b(lun->idle_time / SBT_1MS, data->it.idle_int); 7143#endif 7144 scsi_ulto2b(SLP_TI, data->ti.hdr.param_code); 7145 data->it.hdr.param_control = SLP_LBIN; 7146 data->ti.hdr.param_len = sizeof(struct scsi_log_time_interval) - 7147 sizeof(struct scsi_log_param_header); 7148 scsi_ulto4b(3, data->ti.exponent); 7149 scsi_ulto4b(1, data->ti.integer); 7150 7151 page_index->page_len = sizeof(*data); 7152 return (0); 7153} 7154 7155int 7156ctl_log_sense(struct ctl_scsiio *ctsio) 7157{ 7158 struct ctl_lun *lun; 7159 int i, pc, page_code, subpage; 7160 int alloc_len, total_len; 7161 struct ctl_page_index *page_index; 7162 struct scsi_log_sense *cdb; 7163 struct scsi_log_header *header; 7164 7165 CTL_DEBUG_PRINT(("ctl_log_sense\n")); 7166 7167 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7168 cdb = (struct scsi_log_sense *)ctsio->cdb; 7169 pc = (cdb->page & SLS_PAGE_CTRL_MASK) >> 6; 7170 page_code = cdb->page & SLS_PAGE_CODE; 7171 subpage = cdb->subpage; 7172 alloc_len = scsi_2btoul(cdb->length); 7173 7174 page_index = NULL; 7175 for (i = 0; i < CTL_NUM_LOG_PAGES; i++) { 7176 page_index = &lun->log_pages.index[i]; 7177 7178 /* Look for the right page code */ 7179 if ((page_index->page_code & SL_PAGE_CODE) != page_code) 7180 continue; 7181 7182 /* Look for the right subpage or the subpage wildcard*/ 7183 if (page_index->subpage != subpage) 7184 continue; 7185 7186 break; 7187 } 7188 if (i >= CTL_NUM_LOG_PAGES) { 7189 ctl_set_invalid_field(ctsio, 7190 /*sks_valid*/ 1, 7191 /*command*/ 1, 7192 /*field*/ 2, 7193 /*bit_valid*/ 0, 7194 /*bit*/ 0); 7195 ctl_done((union ctl_io *)ctsio); 7196 return (CTL_RETVAL_COMPLETE); 7197 } 7198 7199 total_len = sizeof(struct scsi_log_header) + page_index->page_len; 7200 7201 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7202 ctsio->kern_sg_entries = 0; 7203 ctsio->kern_data_resid = 0; 7204 ctsio->kern_rel_offset = 0; 7205 if (total_len < alloc_len) { 7206 ctsio->residual = alloc_len - total_len; 7207 ctsio->kern_data_len = total_len; 7208 ctsio->kern_total_len = total_len; 7209 } else { 7210 ctsio->residual = 0; 7211 ctsio->kern_data_len = alloc_len; 7212 ctsio->kern_total_len = alloc_len; 7213 } 7214 7215 header = (struct scsi_log_header *)ctsio->kern_data_ptr; 7216 header->page = page_index->page_code; 7217 if (page_index->subpage) { 7218 header->page |= SL_SPF; 7219 header->subpage = page_index->subpage; 7220 } 7221 scsi_ulto2b(page_index->page_len, header->datalen); 7222 7223 /* 7224 * Call the handler, if it exists, to update the 7225 * page to the latest values. 7226 */ 7227 if (page_index->sense_handler != NULL) 7228 page_index->sense_handler(ctsio, page_index, pc); 7229 7230 memcpy(header + 1, page_index->page_data, page_index->page_len); 7231 7232 ctl_set_success(ctsio); 7233 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7234 ctsio->be_move_done = ctl_config_move_done; 7235 ctl_datamove((union ctl_io *)ctsio); 7236 return (CTL_RETVAL_COMPLETE); 7237} 7238 7239int 7240ctl_read_capacity(struct ctl_scsiio *ctsio) 7241{ 7242 struct scsi_read_capacity *cdb; 7243 struct scsi_read_capacity_data *data; 7244 struct ctl_lun *lun; 7245 uint32_t lba; 7246 7247 CTL_DEBUG_PRINT(("ctl_read_capacity\n")); 7248 7249 cdb = (struct scsi_read_capacity *)ctsio->cdb; 7250 7251 lba = scsi_4btoul(cdb->addr); 7252 if (((cdb->pmi & SRC_PMI) == 0) 7253 && (lba != 0)) { 7254 ctl_set_invalid_field(/*ctsio*/ ctsio, 7255 /*sks_valid*/ 1, 7256 /*command*/ 1, 7257 /*field*/ 2, 7258 /*bit_valid*/ 0, 7259 /*bit*/ 0); 7260 ctl_done((union ctl_io *)ctsio); 7261 return (CTL_RETVAL_COMPLETE); 7262 } 7263 7264 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7265 7266 ctsio->kern_data_ptr = malloc(sizeof(*data), M_CTL, M_WAITOK | M_ZERO); 7267 data = (struct scsi_read_capacity_data *)ctsio->kern_data_ptr; 7268 ctsio->residual = 0; 7269 ctsio->kern_data_len = sizeof(*data); 7270 ctsio->kern_total_len = sizeof(*data); 7271 ctsio->kern_data_resid = 0; 7272 ctsio->kern_rel_offset = 0; 7273 ctsio->kern_sg_entries = 0; 7274 7275 /* 7276 * If the maximum LBA is greater than 0xfffffffe, the user must 7277 * issue a SERVICE ACTION IN (16) command, with the read capacity 7278 * serivce action set. 7279 */ 7280 if (lun->be_lun->maxlba > 0xfffffffe) 7281 scsi_ulto4b(0xffffffff, data->addr); 7282 else 7283 scsi_ulto4b(lun->be_lun->maxlba, data->addr); 7284 7285 /* 7286 * XXX KDM this may not be 512 bytes... 7287 */ 7288 scsi_ulto4b(lun->be_lun->blocksize, data->length); 7289 7290 ctl_set_success(ctsio); 7291 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7292 ctsio->be_move_done = ctl_config_move_done; 7293 ctl_datamove((union ctl_io *)ctsio); 7294 return (CTL_RETVAL_COMPLETE); 7295} 7296 7297int 7298ctl_read_capacity_16(struct ctl_scsiio *ctsio) 7299{ 7300 struct scsi_read_capacity_16 *cdb; 7301 struct scsi_read_capacity_data_long *data; 7302 struct ctl_lun *lun; 7303 uint64_t lba; 7304 uint32_t alloc_len; 7305 7306 CTL_DEBUG_PRINT(("ctl_read_capacity_16\n")); 7307 7308 cdb = (struct scsi_read_capacity_16 *)ctsio->cdb; 7309 7310 alloc_len = scsi_4btoul(cdb->alloc_len); 7311 lba = scsi_8btou64(cdb->addr); 7312 7313 if ((cdb->reladr & SRC16_PMI) 7314 && (lba != 0)) { 7315 ctl_set_invalid_field(/*ctsio*/ ctsio, 7316 /*sks_valid*/ 1, 7317 /*command*/ 1, 7318 /*field*/ 2, 7319 /*bit_valid*/ 0, 7320 /*bit*/ 0); 7321 ctl_done((union ctl_io *)ctsio); 7322 return (CTL_RETVAL_COMPLETE); 7323 } 7324 7325 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7326 7327 ctsio->kern_data_ptr = malloc(sizeof(*data), M_CTL, M_WAITOK | M_ZERO); 7328 data = (struct scsi_read_capacity_data_long *)ctsio->kern_data_ptr; 7329 7330 if (sizeof(*data) < alloc_len) { 7331 ctsio->residual = alloc_len - sizeof(*data); 7332 ctsio->kern_data_len = sizeof(*data); 7333 ctsio->kern_total_len = sizeof(*data); 7334 } else { 7335 ctsio->residual = 0; 7336 ctsio->kern_data_len = alloc_len; 7337 ctsio->kern_total_len = alloc_len; 7338 } 7339 ctsio->kern_data_resid = 0; 7340 ctsio->kern_rel_offset = 0; 7341 ctsio->kern_sg_entries = 0; 7342 7343 scsi_u64to8b(lun->be_lun->maxlba, data->addr); 7344 /* XXX KDM this may not be 512 bytes... */ 7345 scsi_ulto4b(lun->be_lun->blocksize, data->length); 7346 data->prot_lbppbe = lun->be_lun->pblockexp & SRC16_LBPPBE; 7347 scsi_ulto2b(lun->be_lun->pblockoff & SRC16_LALBA_A, data->lalba_lbp); 7348 if (lun->be_lun->flags & CTL_LUN_FLAG_UNMAP) 7349 data->lalba_lbp[0] |= SRC16_LBPME | SRC16_LBPRZ; 7350 7351 ctl_set_success(ctsio); 7352 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7353 ctsio->be_move_done = ctl_config_move_done; 7354 ctl_datamove((union ctl_io *)ctsio); 7355 return (CTL_RETVAL_COMPLETE); 7356} 7357 7358int 7359ctl_get_lba_status(struct ctl_scsiio *ctsio) 7360{ 7361 struct scsi_get_lba_status *cdb; 7362 struct scsi_get_lba_status_data *data; 7363 struct ctl_lun *lun; 7364 struct ctl_lba_len_flags *lbalen; 7365 uint64_t lba; 7366 uint32_t alloc_len, total_len; 7367 int retval; 7368 7369 CTL_DEBUG_PRINT(("ctl_get_lba_status\n")); 7370 7371 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7372 cdb = (struct scsi_get_lba_status *)ctsio->cdb; 7373 lba = scsi_8btou64(cdb->addr); 7374 alloc_len = scsi_4btoul(cdb->alloc_len); 7375 7376 if (lba > lun->be_lun->maxlba) { 7377 ctl_set_lba_out_of_range(ctsio); 7378 ctl_done((union ctl_io *)ctsio); 7379 return (CTL_RETVAL_COMPLETE); 7380 } 7381 7382 total_len = sizeof(*data) + sizeof(data->descr[0]); 7383 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7384 data = (struct scsi_get_lba_status_data *)ctsio->kern_data_ptr; 7385 7386 if (total_len < alloc_len) { 7387 ctsio->residual = alloc_len - total_len; 7388 ctsio->kern_data_len = total_len; 7389 ctsio->kern_total_len = total_len; 7390 } else { 7391 ctsio->residual = 0; 7392 ctsio->kern_data_len = alloc_len; 7393 ctsio->kern_total_len = alloc_len; 7394 } 7395 ctsio->kern_data_resid = 0; 7396 ctsio->kern_rel_offset = 0; 7397 ctsio->kern_sg_entries = 0; 7398 7399 /* Fill dummy data in case backend can't tell anything. */ 7400 scsi_ulto4b(4 + sizeof(data->descr[0]), data->length); 7401 scsi_u64to8b(lba, data->descr[0].addr); 7402 scsi_ulto4b(MIN(UINT32_MAX, lun->be_lun->maxlba + 1 - lba), 7403 data->descr[0].length); 7404 data->descr[0].status = 0; /* Mapped or unknown. */ 7405 7406 ctl_set_success(ctsio); 7407 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7408 ctsio->be_move_done = ctl_config_move_done; 7409 7410 lbalen = (struct ctl_lba_len_flags *)&ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 7411 lbalen->lba = lba; 7412 lbalen->len = total_len; 7413 lbalen->flags = 0; 7414 retval = lun->backend->config_read((union ctl_io *)ctsio); 7415 return (CTL_RETVAL_COMPLETE); 7416} 7417 7418int 7419ctl_read_defect(struct ctl_scsiio *ctsio) 7420{ 7421 struct scsi_read_defect_data_10 *ccb10; 7422 struct scsi_read_defect_data_12 *ccb12; 7423 struct scsi_read_defect_data_hdr_10 *data10; 7424 struct scsi_read_defect_data_hdr_12 *data12; 7425 uint32_t alloc_len, data_len; 7426 uint8_t format; 7427 7428 CTL_DEBUG_PRINT(("ctl_read_defect\n")); 7429 7430 if (ctsio->cdb[0] == READ_DEFECT_DATA_10) { 7431 ccb10 = (struct scsi_read_defect_data_10 *)&ctsio->cdb; 7432 format = ccb10->format; 7433 alloc_len = scsi_2btoul(ccb10->alloc_length); 7434 data_len = sizeof(*data10); 7435 } else { 7436 ccb12 = (struct scsi_read_defect_data_12 *)&ctsio->cdb; 7437 format = ccb12->format; 7438 alloc_len = scsi_4btoul(ccb12->alloc_length); 7439 data_len = sizeof(*data12); 7440 } 7441 if (alloc_len == 0) { 7442 ctl_set_success(ctsio); 7443 ctl_done((union ctl_io *)ctsio); 7444 return (CTL_RETVAL_COMPLETE); 7445 } 7446 7447 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 7448 if (data_len < alloc_len) { 7449 ctsio->residual = alloc_len - data_len; 7450 ctsio->kern_data_len = data_len; 7451 ctsio->kern_total_len = data_len; 7452 } else { 7453 ctsio->residual = 0; 7454 ctsio->kern_data_len = alloc_len; 7455 ctsio->kern_total_len = alloc_len; 7456 } 7457 ctsio->kern_data_resid = 0; 7458 ctsio->kern_rel_offset = 0; 7459 ctsio->kern_sg_entries = 0; 7460 7461 if (ctsio->cdb[0] == READ_DEFECT_DATA_10) { 7462 data10 = (struct scsi_read_defect_data_hdr_10 *) 7463 ctsio->kern_data_ptr; 7464 data10->format = format; 7465 scsi_ulto2b(0, data10->length); 7466 } else { 7467 data12 = (struct scsi_read_defect_data_hdr_12 *) 7468 ctsio->kern_data_ptr; 7469 data12->format = format; 7470 scsi_ulto2b(0, data12->generation); 7471 scsi_ulto4b(0, data12->length); 7472 } 7473 7474 ctl_set_success(ctsio); 7475 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7476 ctsio->be_move_done = ctl_config_move_done; 7477 ctl_datamove((union ctl_io *)ctsio); 7478 return (CTL_RETVAL_COMPLETE); 7479} 7480 7481int 7482ctl_report_tagret_port_groups(struct ctl_scsiio *ctsio) 7483{ 7484 struct scsi_maintenance_in *cdb; 7485 int retval; 7486 int alloc_len, ext, total_len = 0, g, p, pc, pg, gs, os; 7487 int num_target_port_groups, num_target_ports; 7488 struct ctl_lun *lun; 7489 struct ctl_softc *softc; 7490 struct ctl_port *port; 7491 struct scsi_target_group_data *rtg_ptr; 7492 struct scsi_target_group_data_extended *rtg_ext_ptr; 7493 struct scsi_target_port_group_descriptor *tpg_desc; 7494 7495 CTL_DEBUG_PRINT(("ctl_report_tagret_port_groups\n")); 7496 7497 cdb = (struct scsi_maintenance_in *)ctsio->cdb; 7498 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7499 softc = lun->ctl_softc; 7500 7501 retval = CTL_RETVAL_COMPLETE; 7502 7503 switch (cdb->byte2 & STG_PDF_MASK) { 7504 case STG_PDF_LENGTH: 7505 ext = 0; 7506 break; 7507 case STG_PDF_EXTENDED: 7508 ext = 1; 7509 break; 7510 default: 7511 ctl_set_invalid_field(/*ctsio*/ ctsio, 7512 /*sks_valid*/ 1, 7513 /*command*/ 1, 7514 /*field*/ 2, 7515 /*bit_valid*/ 1, 7516 /*bit*/ 5); 7517 ctl_done((union ctl_io *)ctsio); 7518 return(retval); 7519 } 7520 7521 if (softc->is_single) 7522 num_target_port_groups = 1; 7523 else 7524 num_target_port_groups = NUM_TARGET_PORT_GROUPS; 7525 num_target_ports = 0; 7526 mtx_lock(&softc->ctl_lock); 7527 STAILQ_FOREACH(port, &softc->port_list, links) { 7528 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 7529 continue; 7530 if (ctl_lun_map_to_port(port, lun->lun) >= CTL_MAX_LUNS) 7531 continue; 7532 num_target_ports++; 7533 } 7534 mtx_unlock(&softc->ctl_lock); 7535 7536 if (ext) 7537 total_len = sizeof(struct scsi_target_group_data_extended); 7538 else 7539 total_len = sizeof(struct scsi_target_group_data); 7540 total_len += sizeof(struct scsi_target_port_group_descriptor) * 7541 num_target_port_groups + 7542 sizeof(struct scsi_target_port_descriptor) * 7543 num_target_ports * num_target_port_groups; 7544 7545 alloc_len = scsi_4btoul(cdb->length); 7546 7547 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7548 7549 ctsio->kern_sg_entries = 0; 7550 7551 if (total_len < alloc_len) { 7552 ctsio->residual = alloc_len - total_len; 7553 ctsio->kern_data_len = total_len; 7554 ctsio->kern_total_len = total_len; 7555 } else { 7556 ctsio->residual = 0; 7557 ctsio->kern_data_len = alloc_len; 7558 ctsio->kern_total_len = alloc_len; 7559 } 7560 ctsio->kern_data_resid = 0; 7561 ctsio->kern_rel_offset = 0; 7562 7563 if (ext) { 7564 rtg_ext_ptr = (struct scsi_target_group_data_extended *) 7565 ctsio->kern_data_ptr; 7566 scsi_ulto4b(total_len - 4, rtg_ext_ptr->length); 7567 rtg_ext_ptr->format_type = 0x10; 7568 rtg_ext_ptr->implicit_transition_time = 0; 7569 tpg_desc = &rtg_ext_ptr->groups[0]; 7570 } else { 7571 rtg_ptr = (struct scsi_target_group_data *) 7572 ctsio->kern_data_ptr; 7573 scsi_ulto4b(total_len - 4, rtg_ptr->length); 7574 tpg_desc = &rtg_ptr->groups[0]; 7575 } 7576 7577 mtx_lock(&softc->ctl_lock); 7578 pg = softc->port_offset / CTL_MAX_PORTS; 7579 if (softc->flags & CTL_FLAG_ACTIVE_SHELF) { 7580 if (softc->ha_mode == CTL_HA_MODE_ACT_STBY) { 7581 gs = TPG_ASYMMETRIC_ACCESS_OPTIMIZED; 7582 os = TPG_ASYMMETRIC_ACCESS_STANDBY; 7583 } else if (lun->flags & CTL_LUN_PRIMARY_SC) { 7584 gs = TPG_ASYMMETRIC_ACCESS_OPTIMIZED; 7585 os = TPG_ASYMMETRIC_ACCESS_NONOPTIMIZED; 7586 } else { 7587 gs = TPG_ASYMMETRIC_ACCESS_NONOPTIMIZED; 7588 os = TPG_ASYMMETRIC_ACCESS_OPTIMIZED; 7589 } 7590 } else { 7591 gs = TPG_ASYMMETRIC_ACCESS_STANDBY; 7592 os = TPG_ASYMMETRIC_ACCESS_OPTIMIZED; 7593 } 7594 for (g = 0; g < num_target_port_groups; g++) { 7595 tpg_desc->pref_state = (g == pg) ? gs : os; 7596 tpg_desc->support = TPG_AO_SUP | TPG_AN_SUP | TPG_S_SUP; 7597 scsi_ulto2b(g + 1, tpg_desc->target_port_group); 7598 tpg_desc->status = TPG_IMPLICIT; 7599 pc = 0; 7600 STAILQ_FOREACH(port, &softc->port_list, links) { 7601 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 7602 continue; 7603 if (ctl_lun_map_to_port(port, lun->lun) >= CTL_MAX_LUNS) 7604 continue; 7605 p = port->targ_port % CTL_MAX_PORTS + g * CTL_MAX_PORTS; 7606 scsi_ulto2b(p, tpg_desc->descriptors[pc]. 7607 relative_target_port_identifier); 7608 pc++; 7609 } 7610 tpg_desc->target_port_count = pc; 7611 tpg_desc = (struct scsi_target_port_group_descriptor *) 7612 &tpg_desc->descriptors[pc]; 7613 } 7614 mtx_unlock(&softc->ctl_lock); 7615 7616 ctl_set_success(ctsio); 7617 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7618 ctsio->be_move_done = ctl_config_move_done; 7619 ctl_datamove((union ctl_io *)ctsio); 7620 return(retval); 7621} 7622 7623int 7624ctl_report_supported_opcodes(struct ctl_scsiio *ctsio) 7625{ 7626 struct ctl_lun *lun; 7627 struct scsi_report_supported_opcodes *cdb; 7628 const struct ctl_cmd_entry *entry, *sentry; 7629 struct scsi_report_supported_opcodes_all *all; 7630 struct scsi_report_supported_opcodes_descr *descr; 7631 struct scsi_report_supported_opcodes_one *one; 7632 int retval; 7633 int alloc_len, total_len; 7634 int opcode, service_action, i, j, num; 7635 7636 CTL_DEBUG_PRINT(("ctl_report_supported_opcodes\n")); 7637 7638 cdb = (struct scsi_report_supported_opcodes *)ctsio->cdb; 7639 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7640 7641 retval = CTL_RETVAL_COMPLETE; 7642 7643 opcode = cdb->requested_opcode; 7644 service_action = scsi_2btoul(cdb->requested_service_action); 7645 switch (cdb->options & RSO_OPTIONS_MASK) { 7646 case RSO_OPTIONS_ALL: 7647 num = 0; 7648 for (i = 0; i < 256; i++) { 7649 entry = &ctl_cmd_table[i]; 7650 if (entry->flags & CTL_CMD_FLAG_SA5) { 7651 for (j = 0; j < 32; j++) { 7652 sentry = &((const struct ctl_cmd_entry *) 7653 entry->execute)[j]; 7654 if (ctl_cmd_applicable( 7655 lun->be_lun->lun_type, sentry)) 7656 num++; 7657 } 7658 } else { 7659 if (ctl_cmd_applicable(lun->be_lun->lun_type, 7660 entry)) 7661 num++; 7662 } 7663 } 7664 total_len = sizeof(struct scsi_report_supported_opcodes_all) + 7665 num * sizeof(struct scsi_report_supported_opcodes_descr); 7666 break; 7667 case RSO_OPTIONS_OC: 7668 if (ctl_cmd_table[opcode].flags & CTL_CMD_FLAG_SA5) { 7669 ctl_set_invalid_field(/*ctsio*/ ctsio, 7670 /*sks_valid*/ 1, 7671 /*command*/ 1, 7672 /*field*/ 2, 7673 /*bit_valid*/ 1, 7674 /*bit*/ 2); 7675 ctl_done((union ctl_io *)ctsio); 7676 return (CTL_RETVAL_COMPLETE); 7677 } 7678 total_len = sizeof(struct scsi_report_supported_opcodes_one) + 32; 7679 break; 7680 case RSO_OPTIONS_OC_SA: 7681 if ((ctl_cmd_table[opcode].flags & CTL_CMD_FLAG_SA5) == 0 || 7682 service_action >= 32) { 7683 ctl_set_invalid_field(/*ctsio*/ ctsio, 7684 /*sks_valid*/ 1, 7685 /*command*/ 1, 7686 /*field*/ 2, 7687 /*bit_valid*/ 1, 7688 /*bit*/ 2); 7689 ctl_done((union ctl_io *)ctsio); 7690 return (CTL_RETVAL_COMPLETE); 7691 } 7692 total_len = sizeof(struct scsi_report_supported_opcodes_one) + 32; 7693 break; 7694 default: 7695 ctl_set_invalid_field(/*ctsio*/ ctsio, 7696 /*sks_valid*/ 1, 7697 /*command*/ 1, 7698 /*field*/ 2, 7699 /*bit_valid*/ 1, 7700 /*bit*/ 2); 7701 ctl_done((union ctl_io *)ctsio); 7702 return (CTL_RETVAL_COMPLETE); 7703 } 7704 7705 alloc_len = scsi_4btoul(cdb->length); 7706 7707 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7708 7709 ctsio->kern_sg_entries = 0; 7710 7711 if (total_len < alloc_len) { 7712 ctsio->residual = alloc_len - total_len; 7713 ctsio->kern_data_len = total_len; 7714 ctsio->kern_total_len = total_len; 7715 } else { 7716 ctsio->residual = 0; 7717 ctsio->kern_data_len = alloc_len; 7718 ctsio->kern_total_len = alloc_len; 7719 } 7720 ctsio->kern_data_resid = 0; 7721 ctsio->kern_rel_offset = 0; 7722 7723 switch (cdb->options & RSO_OPTIONS_MASK) { 7724 case RSO_OPTIONS_ALL: 7725 all = (struct scsi_report_supported_opcodes_all *) 7726 ctsio->kern_data_ptr; 7727 num = 0; 7728 for (i = 0; i < 256; i++) { 7729 entry = &ctl_cmd_table[i]; 7730 if (entry->flags & CTL_CMD_FLAG_SA5) { 7731 for (j = 0; j < 32; j++) { 7732 sentry = &((const struct ctl_cmd_entry *) 7733 entry->execute)[j]; 7734 if (!ctl_cmd_applicable( 7735 lun->be_lun->lun_type, sentry)) 7736 continue; 7737 descr = &all->descr[num++]; 7738 descr->opcode = i; 7739 scsi_ulto2b(j, descr->service_action); 7740 descr->flags = RSO_SERVACTV; 7741 scsi_ulto2b(sentry->length, 7742 descr->cdb_length); 7743 } 7744 } else { 7745 if (!ctl_cmd_applicable(lun->be_lun->lun_type, 7746 entry)) 7747 continue; 7748 descr = &all->descr[num++]; 7749 descr->opcode = i; 7750 scsi_ulto2b(0, descr->service_action); 7751 descr->flags = 0; 7752 scsi_ulto2b(entry->length, descr->cdb_length); 7753 } 7754 } 7755 scsi_ulto4b( 7756 num * sizeof(struct scsi_report_supported_opcodes_descr), 7757 all->length); 7758 break; 7759 case RSO_OPTIONS_OC: 7760 one = (struct scsi_report_supported_opcodes_one *) 7761 ctsio->kern_data_ptr; 7762 entry = &ctl_cmd_table[opcode]; 7763 goto fill_one; 7764 case RSO_OPTIONS_OC_SA: 7765 one = (struct scsi_report_supported_opcodes_one *) 7766 ctsio->kern_data_ptr; 7767 entry = &ctl_cmd_table[opcode]; 7768 entry = &((const struct ctl_cmd_entry *) 7769 entry->execute)[service_action]; 7770fill_one: 7771 if (ctl_cmd_applicable(lun->be_lun->lun_type, entry)) { 7772 one->support = 3; 7773 scsi_ulto2b(entry->length, one->cdb_length); 7774 one->cdb_usage[0] = opcode; 7775 memcpy(&one->cdb_usage[1], entry->usage, 7776 entry->length - 1); 7777 } else 7778 one->support = 1; 7779 break; 7780 } 7781 7782 ctl_set_success(ctsio); 7783 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7784 ctsio->be_move_done = ctl_config_move_done; 7785 ctl_datamove((union ctl_io *)ctsio); 7786 return(retval); 7787} 7788 7789int 7790ctl_report_supported_tmf(struct ctl_scsiio *ctsio) 7791{ 7792 struct scsi_report_supported_tmf *cdb; 7793 struct scsi_report_supported_tmf_data *data; 7794 int retval; 7795 int alloc_len, total_len; 7796 7797 CTL_DEBUG_PRINT(("ctl_report_supported_tmf\n")); 7798 7799 cdb = (struct scsi_report_supported_tmf *)ctsio->cdb; 7800 7801 retval = CTL_RETVAL_COMPLETE; 7802 7803 total_len = sizeof(struct scsi_report_supported_tmf_data); 7804 alloc_len = scsi_4btoul(cdb->length); 7805 7806 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7807 7808 ctsio->kern_sg_entries = 0; 7809 7810 if (total_len < alloc_len) { 7811 ctsio->residual = alloc_len - total_len; 7812 ctsio->kern_data_len = total_len; 7813 ctsio->kern_total_len = total_len; 7814 } else { 7815 ctsio->residual = 0; 7816 ctsio->kern_data_len = alloc_len; 7817 ctsio->kern_total_len = alloc_len; 7818 } 7819 ctsio->kern_data_resid = 0; 7820 ctsio->kern_rel_offset = 0; 7821 7822 data = (struct scsi_report_supported_tmf_data *)ctsio->kern_data_ptr; 7823 data->byte1 |= RST_ATS | RST_ATSS | RST_CTSS | RST_LURS | RST_TRS; 7824 data->byte2 |= RST_ITNRS; 7825 7826 ctl_set_success(ctsio); 7827 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7828 ctsio->be_move_done = ctl_config_move_done; 7829 ctl_datamove((union ctl_io *)ctsio); 7830 return (retval); 7831} 7832 7833int 7834ctl_report_timestamp(struct ctl_scsiio *ctsio) 7835{ 7836 struct scsi_report_timestamp *cdb; 7837 struct scsi_report_timestamp_data *data; 7838 struct timeval tv; 7839 int64_t timestamp; 7840 int retval; 7841 int alloc_len, total_len; 7842 7843 CTL_DEBUG_PRINT(("ctl_report_timestamp\n")); 7844 7845 cdb = (struct scsi_report_timestamp *)ctsio->cdb; 7846 7847 retval = CTL_RETVAL_COMPLETE; 7848 7849 total_len = sizeof(struct scsi_report_timestamp_data); 7850 alloc_len = scsi_4btoul(cdb->length); 7851 7852 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7853 7854 ctsio->kern_sg_entries = 0; 7855 7856 if (total_len < alloc_len) { 7857 ctsio->residual = alloc_len - total_len; 7858 ctsio->kern_data_len = total_len; 7859 ctsio->kern_total_len = total_len; 7860 } else { 7861 ctsio->residual = 0; 7862 ctsio->kern_data_len = alloc_len; 7863 ctsio->kern_total_len = alloc_len; 7864 } 7865 ctsio->kern_data_resid = 0; 7866 ctsio->kern_rel_offset = 0; 7867 7868 data = (struct scsi_report_timestamp_data *)ctsio->kern_data_ptr; 7869 scsi_ulto2b(sizeof(*data) - 2, data->length); 7870 data->origin = RTS_ORIG_OUTSIDE; 7871 getmicrotime(&tv); 7872 timestamp = (int64_t)tv.tv_sec * 1000 + tv.tv_usec / 1000; 7873 scsi_ulto4b(timestamp >> 16, data->timestamp); 7874 scsi_ulto2b(timestamp & 0xffff, &data->timestamp[4]); 7875 7876 ctl_set_success(ctsio); 7877 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7878 ctsio->be_move_done = ctl_config_move_done; 7879 ctl_datamove((union ctl_io *)ctsio); 7880 return (retval); 7881} 7882 7883int 7884ctl_persistent_reserve_in(struct ctl_scsiio *ctsio) 7885{ 7886 struct scsi_per_res_in *cdb; 7887 int alloc_len, total_len = 0; 7888 /* struct scsi_per_res_in_rsrv in_data; */ 7889 struct ctl_lun *lun; 7890 struct ctl_softc *softc; 7891 uint64_t key; 7892 7893 CTL_DEBUG_PRINT(("ctl_persistent_reserve_in\n")); 7894 7895 cdb = (struct scsi_per_res_in *)ctsio->cdb; 7896 7897 alloc_len = scsi_2btoul(cdb->length); 7898 7899 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7900 softc = lun->ctl_softc; 7901 7902retry: 7903 mtx_lock(&lun->lun_lock); 7904 switch (cdb->action) { 7905 case SPRI_RK: /* read keys */ 7906 total_len = sizeof(struct scsi_per_res_in_keys) + 7907 lun->pr_key_count * 7908 sizeof(struct scsi_per_res_key); 7909 break; 7910 case SPRI_RR: /* read reservation */ 7911 if (lun->flags & CTL_LUN_PR_RESERVED) 7912 total_len = sizeof(struct scsi_per_res_in_rsrv); 7913 else 7914 total_len = sizeof(struct scsi_per_res_in_header); 7915 break; 7916 case SPRI_RC: /* report capabilities */ 7917 total_len = sizeof(struct scsi_per_res_cap); 7918 break; 7919 case SPRI_RS: /* read full status */ 7920 total_len = sizeof(struct scsi_per_res_in_header) + 7921 (sizeof(struct scsi_per_res_in_full_desc) + 256) * 7922 lun->pr_key_count; 7923 break; 7924 default: 7925 panic("Invalid PR type %x", cdb->action); 7926 } 7927 mtx_unlock(&lun->lun_lock); 7928 7929 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7930 7931 if (total_len < alloc_len) { 7932 ctsio->residual = alloc_len - total_len; 7933 ctsio->kern_data_len = total_len; 7934 ctsio->kern_total_len = total_len; 7935 } else { 7936 ctsio->residual = 0; 7937 ctsio->kern_data_len = alloc_len; 7938 ctsio->kern_total_len = alloc_len; 7939 } 7940 7941 ctsio->kern_data_resid = 0; 7942 ctsio->kern_rel_offset = 0; 7943 ctsio->kern_sg_entries = 0; 7944 7945 mtx_lock(&lun->lun_lock); 7946 switch (cdb->action) { 7947 case SPRI_RK: { // read keys 7948 struct scsi_per_res_in_keys *res_keys; 7949 int i, key_count; 7950 7951 res_keys = (struct scsi_per_res_in_keys*)ctsio->kern_data_ptr; 7952 7953 /* 7954 * We had to drop the lock to allocate our buffer, which 7955 * leaves time for someone to come in with another 7956 * persistent reservation. (That is unlikely, though, 7957 * since this should be the only persistent reservation 7958 * command active right now.) 7959 */ 7960 if (total_len != (sizeof(struct scsi_per_res_in_keys) + 7961 (lun->pr_key_count * 7962 sizeof(struct scsi_per_res_key)))){ 7963 mtx_unlock(&lun->lun_lock); 7964 free(ctsio->kern_data_ptr, M_CTL); 7965 printf("%s: reservation length changed, retrying\n", 7966 __func__); 7967 goto retry; 7968 } 7969 7970 scsi_ulto4b(lun->PRGeneration, res_keys->header.generation); 7971 7972 scsi_ulto4b(sizeof(struct scsi_per_res_key) * 7973 lun->pr_key_count, res_keys->header.length); 7974 7975 for (i = 0, key_count = 0; i < 2*CTL_MAX_INITIATORS; i++) { 7976 if ((key = ctl_get_prkey(lun, i)) == 0) 7977 continue; 7978 7979 /* 7980 * We used lun->pr_key_count to calculate the 7981 * size to allocate. If it turns out the number of 7982 * initiators with the registered flag set is 7983 * larger than that (i.e. they haven't been kept in 7984 * sync), we've got a problem. 7985 */ 7986 if (key_count >= lun->pr_key_count) { 7987#ifdef NEEDTOPORT 7988 csevent_log(CSC_CTL | CSC_SHELF_SW | 7989 CTL_PR_ERROR, 7990 csevent_LogType_Fault, 7991 csevent_AlertLevel_Yellow, 7992 csevent_FRU_ShelfController, 7993 csevent_FRU_Firmware, 7994 csevent_FRU_Unknown, 7995 "registered keys %d >= key " 7996 "count %d", key_count, 7997 lun->pr_key_count); 7998#endif 7999 key_count++; 8000 continue; 8001 } 8002 scsi_u64to8b(key, res_keys->keys[key_count].key); 8003 key_count++; 8004 } 8005 break; 8006 } 8007 case SPRI_RR: { // read reservation 8008 struct scsi_per_res_in_rsrv *res; 8009 int tmp_len, header_only; 8010 8011 res = (struct scsi_per_res_in_rsrv *)ctsio->kern_data_ptr; 8012 8013 scsi_ulto4b(lun->PRGeneration, res->header.generation); 8014 8015 if (lun->flags & CTL_LUN_PR_RESERVED) 8016 { 8017 tmp_len = sizeof(struct scsi_per_res_in_rsrv); 8018 scsi_ulto4b(sizeof(struct scsi_per_res_in_rsrv_data), 8019 res->header.length); 8020 header_only = 0; 8021 } else { 8022 tmp_len = sizeof(struct scsi_per_res_in_header); 8023 scsi_ulto4b(0, res->header.length); 8024 header_only = 1; 8025 } 8026 8027 /* 8028 * We had to drop the lock to allocate our buffer, which 8029 * leaves time for someone to come in with another 8030 * persistent reservation. (That is unlikely, though, 8031 * since this should be the only persistent reservation 8032 * command active right now.) 8033 */ 8034 if (tmp_len != total_len) { 8035 mtx_unlock(&lun->lun_lock); 8036 free(ctsio->kern_data_ptr, M_CTL); 8037 printf("%s: reservation status changed, retrying\n", 8038 __func__); 8039 goto retry; 8040 } 8041 8042 /* 8043 * No reservation held, so we're done. 8044 */ 8045 if (header_only != 0) 8046 break; 8047 8048 /* 8049 * If the registration is an All Registrants type, the key 8050 * is 0, since it doesn't really matter. 8051 */ 8052 if (lun->pr_res_idx != CTL_PR_ALL_REGISTRANTS) { 8053 scsi_u64to8b(ctl_get_prkey(lun, lun->pr_res_idx), 8054 res->data.reservation); 8055 } 8056 res->data.scopetype = lun->res_type; 8057 break; 8058 } 8059 case SPRI_RC: //report capabilities 8060 { 8061 struct scsi_per_res_cap *res_cap; 8062 uint16_t type_mask; 8063 8064 res_cap = (struct scsi_per_res_cap *)ctsio->kern_data_ptr; 8065 scsi_ulto2b(sizeof(*res_cap), res_cap->length); 8066 res_cap->flags2 |= SPRI_TMV | SPRI_ALLOW_5; 8067 type_mask = SPRI_TM_WR_EX_AR | 8068 SPRI_TM_EX_AC_RO | 8069 SPRI_TM_WR_EX_RO | 8070 SPRI_TM_EX_AC | 8071 SPRI_TM_WR_EX | 8072 SPRI_TM_EX_AC_AR; 8073 scsi_ulto2b(type_mask, res_cap->type_mask); 8074 break; 8075 } 8076 case SPRI_RS: { // read full status 8077 struct scsi_per_res_in_full *res_status; 8078 struct scsi_per_res_in_full_desc *res_desc; 8079 struct ctl_port *port; 8080 int i, len; 8081 8082 res_status = (struct scsi_per_res_in_full*)ctsio->kern_data_ptr; 8083 8084 /* 8085 * We had to drop the lock to allocate our buffer, which 8086 * leaves time for someone to come in with another 8087 * persistent reservation. (That is unlikely, though, 8088 * since this should be the only persistent reservation 8089 * command active right now.) 8090 */ 8091 if (total_len < (sizeof(struct scsi_per_res_in_header) + 8092 (sizeof(struct scsi_per_res_in_full_desc) + 256) * 8093 lun->pr_key_count)){ 8094 mtx_unlock(&lun->lun_lock); 8095 free(ctsio->kern_data_ptr, M_CTL); 8096 printf("%s: reservation length changed, retrying\n", 8097 __func__); 8098 goto retry; 8099 } 8100 8101 scsi_ulto4b(lun->PRGeneration, res_status->header.generation); 8102 8103 res_desc = &res_status->desc[0]; 8104 for (i = 0; i < 2*CTL_MAX_INITIATORS; i++) { 8105 if ((key = ctl_get_prkey(lun, i)) == 0) 8106 continue; 8107 8108 scsi_u64to8b(key, res_desc->res_key.key); 8109 if ((lun->flags & CTL_LUN_PR_RESERVED) && 8110 (lun->pr_res_idx == i || 8111 lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS)) { 8112 res_desc->flags = SPRI_FULL_R_HOLDER; 8113 res_desc->scopetype = lun->res_type; 8114 } 8115 scsi_ulto2b(i / CTL_MAX_INIT_PER_PORT, 8116 res_desc->rel_trgt_port_id); 8117 len = 0; 8118 port = softc->ctl_ports[ 8119 ctl_port_idx(i / CTL_MAX_INIT_PER_PORT)]; 8120 if (port != NULL) 8121 len = ctl_create_iid(port, 8122 i % CTL_MAX_INIT_PER_PORT, 8123 res_desc->transport_id); 8124 scsi_ulto4b(len, res_desc->additional_length); 8125 res_desc = (struct scsi_per_res_in_full_desc *) 8126 &res_desc->transport_id[len]; 8127 } 8128 scsi_ulto4b((uint8_t *)res_desc - (uint8_t *)&res_status->desc[0], 8129 res_status->header.length); 8130 break; 8131 } 8132 default: 8133 /* 8134 * This is a bug, because we just checked for this above, 8135 * and should have returned an error. 8136 */ 8137 panic("Invalid PR type %x", cdb->action); 8138 break; /* NOTREACHED */ 8139 } 8140 mtx_unlock(&lun->lun_lock); 8141 8142 ctl_set_success(ctsio); 8143 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 8144 ctsio->be_move_done = ctl_config_move_done; 8145 ctl_datamove((union ctl_io *)ctsio); 8146 return (CTL_RETVAL_COMPLETE); 8147} 8148 8149static void 8150ctl_est_res_ua(struct ctl_lun *lun, uint32_t residx, ctl_ua_type ua) 8151{ 8152 int off = lun->ctl_softc->persis_offset; 8153 8154 if (residx >= off && residx < off + CTL_MAX_INITIATORS) 8155 ctl_est_ua(lun, residx - off, ua); 8156} 8157 8158/* 8159 * Returns 0 if ctl_persistent_reserve_out() should continue, non-zero if 8160 * it should return. 8161 */ 8162static int 8163ctl_pro_preempt(struct ctl_softc *softc, struct ctl_lun *lun, uint64_t res_key, 8164 uint64_t sa_res_key, uint8_t type, uint32_t residx, 8165 struct ctl_scsiio *ctsio, struct scsi_per_res_out *cdb, 8166 struct scsi_per_res_out_parms* param) 8167{ 8168 union ctl_ha_msg persis_io; 8169 int retval, i; 8170 int isc_retval; 8171 8172 retval = 0; 8173 8174 mtx_lock(&lun->lun_lock); 8175 if (sa_res_key == 0) { 8176 if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS) { 8177 /* validate scope and type */ 8178 if ((cdb->scope_type & SPR_SCOPE_MASK) != 8179 SPR_LU_SCOPE) { 8180 mtx_unlock(&lun->lun_lock); 8181 ctl_set_invalid_field(/*ctsio*/ ctsio, 8182 /*sks_valid*/ 1, 8183 /*command*/ 1, 8184 /*field*/ 2, 8185 /*bit_valid*/ 1, 8186 /*bit*/ 4); 8187 ctl_done((union ctl_io *)ctsio); 8188 return (1); 8189 } 8190 8191 if (type>8 || type==2 || type==4 || type==0) { 8192 mtx_unlock(&lun->lun_lock); 8193 ctl_set_invalid_field(/*ctsio*/ ctsio, 8194 /*sks_valid*/ 1, 8195 /*command*/ 1, 8196 /*field*/ 2, 8197 /*bit_valid*/ 1, 8198 /*bit*/ 0); 8199 ctl_done((union ctl_io *)ctsio); 8200 return (1); 8201 } 8202 8203 /* 8204 * Unregister everybody else and build UA for 8205 * them 8206 */ 8207 for(i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8208 if (i == residx || ctl_get_prkey(lun, i) == 0) 8209 continue; 8210 8211 ctl_clr_prkey(lun, i); 8212 ctl_est_res_ua(lun, i, CTL_UA_REG_PREEMPT); 8213 } 8214 lun->pr_key_count = 1; 8215 lun->res_type = type; 8216 if (lun->res_type != SPR_TYPE_WR_EX_AR 8217 && lun->res_type != SPR_TYPE_EX_AC_AR) 8218 lun->pr_res_idx = residx; 8219 8220 /* send msg to other side */ 8221 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8222 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8223 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 8224 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8225 persis_io.pr.pr_info.res_type = type; 8226 memcpy(persis_io.pr.pr_info.sa_res_key, 8227 param->serv_act_res_key, 8228 sizeof(param->serv_act_res_key)); 8229 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8230 &persis_io, sizeof(persis_io), 0)) > 8231 CTL_HA_STATUS_SUCCESS) { 8232 printf("CTL:Persis Out error returned " 8233 "from ctl_ha_msg_send %d\n", 8234 isc_retval); 8235 } 8236 } else { 8237 /* not all registrants */ 8238 mtx_unlock(&lun->lun_lock); 8239 free(ctsio->kern_data_ptr, M_CTL); 8240 ctl_set_invalid_field(ctsio, 8241 /*sks_valid*/ 1, 8242 /*command*/ 0, 8243 /*field*/ 8, 8244 /*bit_valid*/ 0, 8245 /*bit*/ 0); 8246 ctl_done((union ctl_io *)ctsio); 8247 return (1); 8248 } 8249 } else if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS 8250 || !(lun->flags & CTL_LUN_PR_RESERVED)) { 8251 int found = 0; 8252 8253 if (res_key == sa_res_key) { 8254 /* special case */ 8255 /* 8256 * The spec implies this is not good but doesn't 8257 * say what to do. There are two choices either 8258 * generate a res conflict or check condition 8259 * with illegal field in parameter data. Since 8260 * that is what is done when the sa_res_key is 8261 * zero I'll take that approach since this has 8262 * to do with the sa_res_key. 8263 */ 8264 mtx_unlock(&lun->lun_lock); 8265 free(ctsio->kern_data_ptr, M_CTL); 8266 ctl_set_invalid_field(ctsio, 8267 /*sks_valid*/ 1, 8268 /*command*/ 0, 8269 /*field*/ 8, 8270 /*bit_valid*/ 0, 8271 /*bit*/ 0); 8272 ctl_done((union ctl_io *)ctsio); 8273 return (1); 8274 } 8275 8276 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8277 if (ctl_get_prkey(lun, i) != sa_res_key) 8278 continue; 8279 8280 found = 1; 8281 ctl_clr_prkey(lun, i); 8282 lun->pr_key_count--; 8283 ctl_est_res_ua(lun, i, CTL_UA_REG_PREEMPT); 8284 } 8285 if (!found) { 8286 mtx_unlock(&lun->lun_lock); 8287 free(ctsio->kern_data_ptr, M_CTL); 8288 ctl_set_reservation_conflict(ctsio); 8289 ctl_done((union ctl_io *)ctsio); 8290 return (CTL_RETVAL_COMPLETE); 8291 } 8292 /* send msg to other side */ 8293 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8294 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8295 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 8296 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8297 persis_io.pr.pr_info.res_type = type; 8298 memcpy(persis_io.pr.pr_info.sa_res_key, 8299 param->serv_act_res_key, 8300 sizeof(param->serv_act_res_key)); 8301 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8302 &persis_io, sizeof(persis_io), 0)) > 8303 CTL_HA_STATUS_SUCCESS) { 8304 printf("CTL:Persis Out error returned from " 8305 "ctl_ha_msg_send %d\n", isc_retval); 8306 } 8307 } else { 8308 /* Reserved but not all registrants */ 8309 /* sa_res_key is res holder */ 8310 if (sa_res_key == ctl_get_prkey(lun, lun->pr_res_idx)) { 8311 /* validate scope and type */ 8312 if ((cdb->scope_type & SPR_SCOPE_MASK) != 8313 SPR_LU_SCOPE) { 8314 mtx_unlock(&lun->lun_lock); 8315 ctl_set_invalid_field(/*ctsio*/ ctsio, 8316 /*sks_valid*/ 1, 8317 /*command*/ 1, 8318 /*field*/ 2, 8319 /*bit_valid*/ 1, 8320 /*bit*/ 4); 8321 ctl_done((union ctl_io *)ctsio); 8322 return (1); 8323 } 8324 8325 if (type>8 || type==2 || type==4 || type==0) { 8326 mtx_unlock(&lun->lun_lock); 8327 ctl_set_invalid_field(/*ctsio*/ ctsio, 8328 /*sks_valid*/ 1, 8329 /*command*/ 1, 8330 /*field*/ 2, 8331 /*bit_valid*/ 1, 8332 /*bit*/ 0); 8333 ctl_done((union ctl_io *)ctsio); 8334 return (1); 8335 } 8336 8337 /* 8338 * Do the following: 8339 * if sa_res_key != res_key remove all 8340 * registrants w/sa_res_key and generate UA 8341 * for these registrants(Registrations 8342 * Preempted) if it wasn't an exclusive 8343 * reservation generate UA(Reservations 8344 * Preempted) for all other registered nexuses 8345 * if the type has changed. Establish the new 8346 * reservation and holder. If res_key and 8347 * sa_res_key are the same do the above 8348 * except don't unregister the res holder. 8349 */ 8350 8351 for(i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8352 if (i == residx || ctl_get_prkey(lun, i) == 0) 8353 continue; 8354 8355 if (sa_res_key == ctl_get_prkey(lun, i)) { 8356 ctl_clr_prkey(lun, i); 8357 lun->pr_key_count--; 8358 ctl_est_res_ua(lun, i, CTL_UA_REG_PREEMPT); 8359 } else if (type != lun->res_type 8360 && (lun->res_type == SPR_TYPE_WR_EX_RO 8361 || lun->res_type ==SPR_TYPE_EX_AC_RO)){ 8362 ctl_est_res_ua(lun, i, CTL_UA_RES_RELEASE); 8363 } 8364 } 8365 lun->res_type = type; 8366 if (lun->res_type != SPR_TYPE_WR_EX_AR 8367 && lun->res_type != SPR_TYPE_EX_AC_AR) 8368 lun->pr_res_idx = residx; 8369 else 8370 lun->pr_res_idx = CTL_PR_ALL_REGISTRANTS; 8371 8372 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8373 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8374 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 8375 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8376 persis_io.pr.pr_info.res_type = type; 8377 memcpy(persis_io.pr.pr_info.sa_res_key, 8378 param->serv_act_res_key, 8379 sizeof(param->serv_act_res_key)); 8380 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8381 &persis_io, sizeof(persis_io), 0)) > 8382 CTL_HA_STATUS_SUCCESS) { 8383 printf("CTL:Persis Out error returned " 8384 "from ctl_ha_msg_send %d\n", 8385 isc_retval); 8386 } 8387 } else { 8388 /* 8389 * sa_res_key is not the res holder just 8390 * remove registrants 8391 */ 8392 int found=0; 8393 8394 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8395 if (sa_res_key != ctl_get_prkey(lun, i)) 8396 continue; 8397 8398 found = 1; 8399 ctl_clr_prkey(lun, i); 8400 lun->pr_key_count--; 8401 ctl_est_res_ua(lun, i, CTL_UA_REG_PREEMPT); 8402 } 8403 8404 if (!found) { 8405 mtx_unlock(&lun->lun_lock); 8406 free(ctsio->kern_data_ptr, M_CTL); 8407 ctl_set_reservation_conflict(ctsio); 8408 ctl_done((union ctl_io *)ctsio); 8409 return (1); 8410 } 8411 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8412 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8413 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 8414 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8415 persis_io.pr.pr_info.res_type = type; 8416 memcpy(persis_io.pr.pr_info.sa_res_key, 8417 param->serv_act_res_key, 8418 sizeof(param->serv_act_res_key)); 8419 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8420 &persis_io, sizeof(persis_io), 0)) > 8421 CTL_HA_STATUS_SUCCESS) { 8422 printf("CTL:Persis Out error returned " 8423 "from ctl_ha_msg_send %d\n", 8424 isc_retval); 8425 } 8426 } 8427 } 8428 8429 lun->PRGeneration++; 8430 mtx_unlock(&lun->lun_lock); 8431 8432 return (retval); 8433} 8434 8435static void 8436ctl_pro_preempt_other(struct ctl_lun *lun, union ctl_ha_msg *msg) 8437{ 8438 uint64_t sa_res_key; 8439 int i; 8440 8441 sa_res_key = scsi_8btou64(msg->pr.pr_info.sa_res_key); 8442 8443 if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS 8444 || lun->pr_res_idx == CTL_PR_NO_RESERVATION 8445 || sa_res_key != ctl_get_prkey(lun, lun->pr_res_idx)) { 8446 if (sa_res_key == 0) { 8447 /* 8448 * Unregister everybody else and build UA for 8449 * them 8450 */ 8451 for(i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8452 if (i == msg->pr.pr_info.residx || 8453 ctl_get_prkey(lun, i) == 0) 8454 continue; 8455 8456 ctl_clr_prkey(lun, i); 8457 ctl_est_res_ua(lun, i, CTL_UA_REG_PREEMPT); 8458 } 8459 8460 lun->pr_key_count = 1; 8461 lun->res_type = msg->pr.pr_info.res_type; 8462 if (lun->res_type != SPR_TYPE_WR_EX_AR 8463 && lun->res_type != SPR_TYPE_EX_AC_AR) 8464 lun->pr_res_idx = msg->pr.pr_info.residx; 8465 } else { 8466 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8467 if (sa_res_key == ctl_get_prkey(lun, i)) 8468 continue; 8469 8470 ctl_clr_prkey(lun, i); 8471 lun->pr_key_count--; 8472 ctl_est_res_ua(lun, i, CTL_UA_REG_PREEMPT); 8473 } 8474 } 8475 } else { 8476 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8477 if (i == msg->pr.pr_info.residx || 8478 ctl_get_prkey(lun, i) == 0) 8479 continue; 8480 8481 if (sa_res_key == ctl_get_prkey(lun, i)) { 8482 ctl_clr_prkey(lun, i); 8483 lun->pr_key_count--; 8484 ctl_est_res_ua(lun, i, CTL_UA_REG_PREEMPT); 8485 } else if (msg->pr.pr_info.res_type != lun->res_type 8486 && (lun->res_type == SPR_TYPE_WR_EX_RO 8487 || lun->res_type == SPR_TYPE_EX_AC_RO)) { 8488 ctl_est_res_ua(lun, i, CTL_UA_RES_RELEASE); 8489 } 8490 } 8491 lun->res_type = msg->pr.pr_info.res_type; 8492 if (lun->res_type != SPR_TYPE_WR_EX_AR 8493 && lun->res_type != SPR_TYPE_EX_AC_AR) 8494 lun->pr_res_idx = msg->pr.pr_info.residx; 8495 else 8496 lun->pr_res_idx = CTL_PR_ALL_REGISTRANTS; 8497 } 8498 lun->PRGeneration++; 8499 8500} 8501 8502 8503int 8504ctl_persistent_reserve_out(struct ctl_scsiio *ctsio) 8505{ 8506 int retval; 8507 int isc_retval; 8508 u_int32_t param_len; 8509 struct scsi_per_res_out *cdb; 8510 struct ctl_lun *lun; 8511 struct scsi_per_res_out_parms* param; 8512 struct ctl_softc *softc; 8513 uint32_t residx; 8514 uint64_t res_key, sa_res_key, key; 8515 uint8_t type; 8516 union ctl_ha_msg persis_io; 8517 int i; 8518 8519 CTL_DEBUG_PRINT(("ctl_persistent_reserve_out\n")); 8520 8521 retval = CTL_RETVAL_COMPLETE; 8522 8523 cdb = (struct scsi_per_res_out *)ctsio->cdb; 8524 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 8525 softc = lun->ctl_softc; 8526 8527 /* 8528 * We only support whole-LUN scope. The scope & type are ignored for 8529 * register, register and ignore existing key and clear. 8530 * We sometimes ignore scope and type on preempts too!! 8531 * Verify reservation type here as well. 8532 */ 8533 type = cdb->scope_type & SPR_TYPE_MASK; 8534 if ((cdb->action == SPRO_RESERVE) 8535 || (cdb->action == SPRO_RELEASE)) { 8536 if ((cdb->scope_type & SPR_SCOPE_MASK) != SPR_LU_SCOPE) { 8537 ctl_set_invalid_field(/*ctsio*/ ctsio, 8538 /*sks_valid*/ 1, 8539 /*command*/ 1, 8540 /*field*/ 2, 8541 /*bit_valid*/ 1, 8542 /*bit*/ 4); 8543 ctl_done((union ctl_io *)ctsio); 8544 return (CTL_RETVAL_COMPLETE); 8545 } 8546 8547 if (type>8 || type==2 || type==4 || type==0) { 8548 ctl_set_invalid_field(/*ctsio*/ ctsio, 8549 /*sks_valid*/ 1, 8550 /*command*/ 1, 8551 /*field*/ 2, 8552 /*bit_valid*/ 1, 8553 /*bit*/ 0); 8554 ctl_done((union ctl_io *)ctsio); 8555 return (CTL_RETVAL_COMPLETE); 8556 } 8557 } 8558 8559 param_len = scsi_4btoul(cdb->length); 8560 8561 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 8562 ctsio->kern_data_ptr = malloc(param_len, M_CTL, M_WAITOK); 8563 ctsio->kern_data_len = param_len; 8564 ctsio->kern_total_len = param_len; 8565 ctsio->kern_data_resid = 0; 8566 ctsio->kern_rel_offset = 0; 8567 ctsio->kern_sg_entries = 0; 8568 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 8569 ctsio->be_move_done = ctl_config_move_done; 8570 ctl_datamove((union ctl_io *)ctsio); 8571 8572 return (CTL_RETVAL_COMPLETE); 8573 } 8574 8575 param = (struct scsi_per_res_out_parms *)ctsio->kern_data_ptr; 8576 8577 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 8578 res_key = scsi_8btou64(param->res_key.key); 8579 sa_res_key = scsi_8btou64(param->serv_act_res_key); 8580 8581 /* 8582 * Validate the reservation key here except for SPRO_REG_IGNO 8583 * This must be done for all other service actions 8584 */ 8585 if ((cdb->action & SPRO_ACTION_MASK) != SPRO_REG_IGNO) { 8586 mtx_lock(&lun->lun_lock); 8587 if ((key = ctl_get_prkey(lun, residx)) != 0) { 8588 if (res_key != key) { 8589 /* 8590 * The current key passed in doesn't match 8591 * the one the initiator previously 8592 * registered. 8593 */ 8594 mtx_unlock(&lun->lun_lock); 8595 free(ctsio->kern_data_ptr, M_CTL); 8596 ctl_set_reservation_conflict(ctsio); 8597 ctl_done((union ctl_io *)ctsio); 8598 return (CTL_RETVAL_COMPLETE); 8599 } 8600 } else if ((cdb->action & SPRO_ACTION_MASK) != SPRO_REGISTER) { 8601 /* 8602 * We are not registered 8603 */ 8604 mtx_unlock(&lun->lun_lock); 8605 free(ctsio->kern_data_ptr, M_CTL); 8606 ctl_set_reservation_conflict(ctsio); 8607 ctl_done((union ctl_io *)ctsio); 8608 return (CTL_RETVAL_COMPLETE); 8609 } else if (res_key != 0) { 8610 /* 8611 * We are not registered and trying to register but 8612 * the register key isn't zero. 8613 */ 8614 mtx_unlock(&lun->lun_lock); 8615 free(ctsio->kern_data_ptr, M_CTL); 8616 ctl_set_reservation_conflict(ctsio); 8617 ctl_done((union ctl_io *)ctsio); 8618 return (CTL_RETVAL_COMPLETE); 8619 } 8620 mtx_unlock(&lun->lun_lock); 8621 } 8622 8623 switch (cdb->action & SPRO_ACTION_MASK) { 8624 case SPRO_REGISTER: 8625 case SPRO_REG_IGNO: { 8626 8627#if 0 8628 printf("Registration received\n"); 8629#endif 8630 8631 /* 8632 * We don't support any of these options, as we report in 8633 * the read capabilities request (see 8634 * ctl_persistent_reserve_in(), above). 8635 */ 8636 if ((param->flags & SPR_SPEC_I_PT) 8637 || (param->flags & SPR_ALL_TG_PT) 8638 || (param->flags & SPR_APTPL)) { 8639 int bit_ptr; 8640 8641 if (param->flags & SPR_APTPL) 8642 bit_ptr = 0; 8643 else if (param->flags & SPR_ALL_TG_PT) 8644 bit_ptr = 2; 8645 else /* SPR_SPEC_I_PT */ 8646 bit_ptr = 3; 8647 8648 free(ctsio->kern_data_ptr, M_CTL); 8649 ctl_set_invalid_field(ctsio, 8650 /*sks_valid*/ 1, 8651 /*command*/ 0, 8652 /*field*/ 20, 8653 /*bit_valid*/ 1, 8654 /*bit*/ bit_ptr); 8655 ctl_done((union ctl_io *)ctsio); 8656 return (CTL_RETVAL_COMPLETE); 8657 } 8658 8659 mtx_lock(&lun->lun_lock); 8660 8661 /* 8662 * The initiator wants to clear the 8663 * key/unregister. 8664 */ 8665 if (sa_res_key == 0) { 8666 if ((res_key == 0 8667 && (cdb->action & SPRO_ACTION_MASK) == SPRO_REGISTER) 8668 || ((cdb->action & SPRO_ACTION_MASK) == SPRO_REG_IGNO 8669 && ctl_get_prkey(lun, residx) == 0)) { 8670 mtx_unlock(&lun->lun_lock); 8671 goto done; 8672 } 8673 8674 ctl_clr_prkey(lun, residx); 8675 lun->pr_key_count--; 8676 8677 if (residx == lun->pr_res_idx) { 8678 lun->flags &= ~CTL_LUN_PR_RESERVED; 8679 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8680 8681 if ((lun->res_type == SPR_TYPE_WR_EX_RO 8682 || lun->res_type == SPR_TYPE_EX_AC_RO) 8683 && lun->pr_key_count) { 8684 /* 8685 * If the reservation is a registrants 8686 * only type we need to generate a UA 8687 * for other registered inits. The 8688 * sense code should be RESERVATIONS 8689 * RELEASED 8690 */ 8691 8692 for (i = 0; i < CTL_MAX_INITIATORS;i++){ 8693 if (ctl_get_prkey(lun, i + 8694 softc->persis_offset) == 0) 8695 continue; 8696 ctl_est_ua(lun, i, 8697 CTL_UA_RES_RELEASE); 8698 } 8699 } 8700 lun->res_type = 0; 8701 } else if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS) { 8702 if (lun->pr_key_count==0) { 8703 lun->flags &= ~CTL_LUN_PR_RESERVED; 8704 lun->res_type = 0; 8705 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8706 } 8707 } 8708 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8709 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8710 persis_io.pr.pr_info.action = CTL_PR_UNREG_KEY; 8711 persis_io.pr.pr_info.residx = residx; 8712 if ((isc_retval = ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8713 &persis_io, sizeof(persis_io), 0 )) > 8714 CTL_HA_STATUS_SUCCESS) { 8715 printf("CTL:Persis Out error returned from " 8716 "ctl_ha_msg_send %d\n", isc_retval); 8717 } 8718 } else /* sa_res_key != 0 */ { 8719 8720 /* 8721 * If we aren't registered currently then increment 8722 * the key count and set the registered flag. 8723 */ 8724 ctl_alloc_prkey(lun, residx); 8725 if (ctl_get_prkey(lun, residx) == 0) 8726 lun->pr_key_count++; 8727 ctl_set_prkey(lun, residx, sa_res_key); 8728 8729 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8730 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8731 persis_io.pr.pr_info.action = CTL_PR_REG_KEY; 8732 persis_io.pr.pr_info.residx = residx; 8733 memcpy(persis_io.pr.pr_info.sa_res_key, 8734 param->serv_act_res_key, 8735 sizeof(param->serv_act_res_key)); 8736 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8737 &persis_io, sizeof(persis_io), 0)) > 8738 CTL_HA_STATUS_SUCCESS) { 8739 printf("CTL:Persis Out error returned from " 8740 "ctl_ha_msg_send %d\n", isc_retval); 8741 } 8742 } 8743 lun->PRGeneration++; 8744 mtx_unlock(&lun->lun_lock); 8745 8746 break; 8747 } 8748 case SPRO_RESERVE: 8749#if 0 8750 printf("Reserve executed type %d\n", type); 8751#endif 8752 mtx_lock(&lun->lun_lock); 8753 if (lun->flags & CTL_LUN_PR_RESERVED) { 8754 /* 8755 * if this isn't the reservation holder and it's 8756 * not a "all registrants" type or if the type is 8757 * different then we have a conflict 8758 */ 8759 if ((lun->pr_res_idx != residx 8760 && lun->pr_res_idx != CTL_PR_ALL_REGISTRANTS) 8761 || lun->res_type != type) { 8762 mtx_unlock(&lun->lun_lock); 8763 free(ctsio->kern_data_ptr, M_CTL); 8764 ctl_set_reservation_conflict(ctsio); 8765 ctl_done((union ctl_io *)ctsio); 8766 return (CTL_RETVAL_COMPLETE); 8767 } 8768 mtx_unlock(&lun->lun_lock); 8769 } else /* create a reservation */ { 8770 /* 8771 * If it's not an "all registrants" type record 8772 * reservation holder 8773 */ 8774 if (type != SPR_TYPE_WR_EX_AR 8775 && type != SPR_TYPE_EX_AC_AR) 8776 lun->pr_res_idx = residx; /* Res holder */ 8777 else 8778 lun->pr_res_idx = CTL_PR_ALL_REGISTRANTS; 8779 8780 lun->flags |= CTL_LUN_PR_RESERVED; 8781 lun->res_type = type; 8782 8783 mtx_unlock(&lun->lun_lock); 8784 8785 /* send msg to other side */ 8786 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8787 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8788 persis_io.pr.pr_info.action = CTL_PR_RESERVE; 8789 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8790 persis_io.pr.pr_info.res_type = type; 8791 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8792 &persis_io, sizeof(persis_io), 0)) > 8793 CTL_HA_STATUS_SUCCESS) { 8794 printf("CTL:Persis Out error returned from " 8795 "ctl_ha_msg_send %d\n", isc_retval); 8796 } 8797 } 8798 break; 8799 8800 case SPRO_RELEASE: 8801 mtx_lock(&lun->lun_lock); 8802 if ((lun->flags & CTL_LUN_PR_RESERVED) == 0) { 8803 /* No reservation exists return good status */ 8804 mtx_unlock(&lun->lun_lock); 8805 goto done; 8806 } 8807 /* 8808 * Is this nexus a reservation holder? 8809 */ 8810 if (lun->pr_res_idx != residx 8811 && lun->pr_res_idx != CTL_PR_ALL_REGISTRANTS) { 8812 /* 8813 * not a res holder return good status but 8814 * do nothing 8815 */ 8816 mtx_unlock(&lun->lun_lock); 8817 goto done; 8818 } 8819 8820 if (lun->res_type != type) { 8821 mtx_unlock(&lun->lun_lock); 8822 free(ctsio->kern_data_ptr, M_CTL); 8823 ctl_set_illegal_pr_release(ctsio); 8824 ctl_done((union ctl_io *)ctsio); 8825 return (CTL_RETVAL_COMPLETE); 8826 } 8827 8828 /* okay to release */ 8829 lun->flags &= ~CTL_LUN_PR_RESERVED; 8830 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8831 lun->res_type = 0; 8832 8833 /* 8834 * if this isn't an exclusive access 8835 * res generate UA for all other 8836 * registrants. 8837 */ 8838 if (type != SPR_TYPE_EX_AC 8839 && type != SPR_TYPE_WR_EX) { 8840 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 8841 if (i == residx || 8842 ctl_get_prkey(lun, 8843 i + softc->persis_offset) == 0) 8844 continue; 8845 ctl_est_ua(lun, i, CTL_UA_RES_RELEASE); 8846 } 8847 } 8848 mtx_unlock(&lun->lun_lock); 8849 /* Send msg to other side */ 8850 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8851 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8852 persis_io.pr.pr_info.action = CTL_PR_RELEASE; 8853 if ((isc_retval=ctl_ha_msg_send( CTL_HA_CHAN_CTL, &persis_io, 8854 sizeof(persis_io), 0)) > CTL_HA_STATUS_SUCCESS) { 8855 printf("CTL:Persis Out error returned from " 8856 "ctl_ha_msg_send %d\n", isc_retval); 8857 } 8858 break; 8859 8860 case SPRO_CLEAR: 8861 /* send msg to other side */ 8862 8863 mtx_lock(&lun->lun_lock); 8864 lun->flags &= ~CTL_LUN_PR_RESERVED; 8865 lun->res_type = 0; 8866 lun->pr_key_count = 0; 8867 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8868 8869 ctl_clr_prkey(lun, residx); 8870 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) 8871 if (ctl_get_prkey(lun, i) != 0) { 8872 ctl_clr_prkey(lun, i); 8873 ctl_est_res_ua(lun, i, CTL_UA_REG_PREEMPT); 8874 } 8875 lun->PRGeneration++; 8876 mtx_unlock(&lun->lun_lock); 8877 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8878 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8879 persis_io.pr.pr_info.action = CTL_PR_CLEAR; 8880 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8881 sizeof(persis_io), 0)) > CTL_HA_STATUS_SUCCESS) { 8882 printf("CTL:Persis Out error returned from " 8883 "ctl_ha_msg_send %d\n", isc_retval); 8884 } 8885 break; 8886 8887 case SPRO_PREEMPT: 8888 case SPRO_PRE_ABO: { 8889 int nretval; 8890 8891 nretval = ctl_pro_preempt(softc, lun, res_key, sa_res_key, type, 8892 residx, ctsio, cdb, param); 8893 if (nretval != 0) 8894 return (CTL_RETVAL_COMPLETE); 8895 break; 8896 } 8897 default: 8898 panic("Invalid PR type %x", cdb->action); 8899 } 8900 8901done: 8902 free(ctsio->kern_data_ptr, M_CTL); 8903 ctl_set_success(ctsio); 8904 ctl_done((union ctl_io *)ctsio); 8905 8906 return (retval); 8907} 8908 8909/* 8910 * This routine is for handling a message from the other SC pertaining to 8911 * persistent reserve out. All the error checking will have been done 8912 * so only perorming the action need be done here to keep the two 8913 * in sync. 8914 */ 8915static void 8916ctl_hndl_per_res_out_on_other_sc(union ctl_ha_msg *msg) 8917{ 8918 struct ctl_lun *lun; 8919 struct ctl_softc *softc; 8920 int i; 8921 uint32_t targ_lun; 8922 8923 softc = control_softc; 8924 8925 targ_lun = msg->hdr.nexus.targ_mapped_lun; 8926 lun = softc->ctl_luns[targ_lun]; 8927 mtx_lock(&lun->lun_lock); 8928 switch(msg->pr.pr_info.action) { 8929 case CTL_PR_REG_KEY: 8930 ctl_alloc_prkey(lun, msg->pr.pr_info.residx); 8931 if (ctl_get_prkey(lun, msg->pr.pr_info.residx) == 0) 8932 lun->pr_key_count++; 8933 ctl_set_prkey(lun, msg->pr.pr_info.residx, 8934 scsi_8btou64(msg->pr.pr_info.sa_res_key)); 8935 lun->PRGeneration++; 8936 break; 8937 8938 case CTL_PR_UNREG_KEY: 8939 ctl_clr_prkey(lun, msg->pr.pr_info.residx); 8940 lun->pr_key_count--; 8941 8942 /* XXX Need to see if the reservation has been released */ 8943 /* if so do we need to generate UA? */ 8944 if (msg->pr.pr_info.residx == lun->pr_res_idx) { 8945 lun->flags &= ~CTL_LUN_PR_RESERVED; 8946 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8947 8948 if ((lun->res_type == SPR_TYPE_WR_EX_RO 8949 || lun->res_type == SPR_TYPE_EX_AC_RO) 8950 && lun->pr_key_count) { 8951 /* 8952 * If the reservation is a registrants 8953 * only type we need to generate a UA 8954 * for other registered inits. The 8955 * sense code should be RESERVATIONS 8956 * RELEASED 8957 */ 8958 8959 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 8960 if (ctl_get_prkey(lun, i + 8961 softc->persis_offset) == 0) 8962 continue; 8963 8964 ctl_est_ua(lun, i, CTL_UA_RES_RELEASE); 8965 } 8966 } 8967 lun->res_type = 0; 8968 } else if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS) { 8969 if (lun->pr_key_count==0) { 8970 lun->flags &= ~CTL_LUN_PR_RESERVED; 8971 lun->res_type = 0; 8972 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8973 } 8974 } 8975 lun->PRGeneration++; 8976 break; 8977 8978 case CTL_PR_RESERVE: 8979 lun->flags |= CTL_LUN_PR_RESERVED; 8980 lun->res_type = msg->pr.pr_info.res_type; 8981 lun->pr_res_idx = msg->pr.pr_info.residx; 8982 8983 break; 8984 8985 case CTL_PR_RELEASE: 8986 /* 8987 * if this isn't an exclusive access res generate UA for all 8988 * other registrants. 8989 */ 8990 if (lun->res_type != SPR_TYPE_EX_AC 8991 && lun->res_type != SPR_TYPE_WR_EX) { 8992 for (i = 0; i < CTL_MAX_INITIATORS; i++) 8993 if (ctl_get_prkey(lun, i + softc->persis_offset) != 0) 8994 ctl_est_ua(lun, i, CTL_UA_RES_RELEASE); 8995 } 8996 8997 lun->flags &= ~CTL_LUN_PR_RESERVED; 8998 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8999 lun->res_type = 0; 9000 break; 9001 9002 case CTL_PR_PREEMPT: 9003 ctl_pro_preempt_other(lun, msg); 9004 break; 9005 case CTL_PR_CLEAR: 9006 lun->flags &= ~CTL_LUN_PR_RESERVED; 9007 lun->res_type = 0; 9008 lun->pr_key_count = 0; 9009 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 9010 9011 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) { 9012 if (ctl_get_prkey(lun, i) == 0) 9013 continue; 9014 ctl_clr_prkey(lun, i); 9015 ctl_est_res_ua(lun, i, CTL_UA_REG_PREEMPT); 9016 } 9017 lun->PRGeneration++; 9018 break; 9019 } 9020 9021 mtx_unlock(&lun->lun_lock); 9022} 9023 9024int 9025ctl_read_write(struct ctl_scsiio *ctsio) 9026{ 9027 struct ctl_lun *lun; 9028 struct ctl_lba_len_flags *lbalen; 9029 uint64_t lba; 9030 uint32_t num_blocks; 9031 int flags, retval; 9032 int isread; 9033 9034 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9035 9036 CTL_DEBUG_PRINT(("ctl_read_write: command: %#x\n", ctsio->cdb[0])); 9037 9038 flags = 0; 9039 retval = CTL_RETVAL_COMPLETE; 9040 9041 isread = ctsio->cdb[0] == READ_6 || ctsio->cdb[0] == READ_10 9042 || ctsio->cdb[0] == READ_12 || ctsio->cdb[0] == READ_16; 9043 switch (ctsio->cdb[0]) { 9044 case READ_6: 9045 case WRITE_6: { 9046 struct scsi_rw_6 *cdb; 9047 9048 cdb = (struct scsi_rw_6 *)ctsio->cdb; 9049 9050 lba = scsi_3btoul(cdb->addr); 9051 /* only 5 bits are valid in the most significant address byte */ 9052 lba &= 0x1fffff; 9053 num_blocks = cdb->length; 9054 /* 9055 * This is correct according to SBC-2. 9056 */ 9057 if (num_blocks == 0) 9058 num_blocks = 256; 9059 break; 9060 } 9061 case READ_10: 9062 case WRITE_10: { 9063 struct scsi_rw_10 *cdb; 9064 9065 cdb = (struct scsi_rw_10 *)ctsio->cdb; 9066 if (cdb->byte2 & SRW10_FUA) 9067 flags |= CTL_LLF_FUA; 9068 if (cdb->byte2 & SRW10_DPO) 9069 flags |= CTL_LLF_DPO; 9070 lba = scsi_4btoul(cdb->addr); 9071 num_blocks = scsi_2btoul(cdb->length); 9072 break; 9073 } 9074 case WRITE_VERIFY_10: { 9075 struct scsi_write_verify_10 *cdb; 9076 9077 cdb = (struct scsi_write_verify_10 *)ctsio->cdb; 9078 flags |= CTL_LLF_FUA; 9079 if (cdb->byte2 & SWV_DPO) 9080 flags |= CTL_LLF_DPO; 9081 lba = scsi_4btoul(cdb->addr); 9082 num_blocks = scsi_2btoul(cdb->length); 9083 break; 9084 } 9085 case READ_12: 9086 case WRITE_12: { 9087 struct scsi_rw_12 *cdb; 9088 9089 cdb = (struct scsi_rw_12 *)ctsio->cdb; 9090 if (cdb->byte2 & SRW12_FUA) 9091 flags |= CTL_LLF_FUA; 9092 if (cdb->byte2 & SRW12_DPO) 9093 flags |= CTL_LLF_DPO; 9094 lba = scsi_4btoul(cdb->addr); 9095 num_blocks = scsi_4btoul(cdb->length); 9096 break; 9097 } 9098 case WRITE_VERIFY_12: { 9099 struct scsi_write_verify_12 *cdb; 9100 9101 cdb = (struct scsi_write_verify_12 *)ctsio->cdb; 9102 flags |= CTL_LLF_FUA; 9103 if (cdb->byte2 & SWV_DPO) 9104 flags |= CTL_LLF_DPO; 9105 lba = scsi_4btoul(cdb->addr); 9106 num_blocks = scsi_4btoul(cdb->length); 9107 break; 9108 } 9109 case READ_16: 9110 case WRITE_16: { 9111 struct scsi_rw_16 *cdb; 9112 9113 cdb = (struct scsi_rw_16 *)ctsio->cdb; 9114 if (cdb->byte2 & SRW12_FUA) 9115 flags |= CTL_LLF_FUA; 9116 if (cdb->byte2 & SRW12_DPO) 9117 flags |= CTL_LLF_DPO; 9118 lba = scsi_8btou64(cdb->addr); 9119 num_blocks = scsi_4btoul(cdb->length); 9120 break; 9121 } 9122 case WRITE_ATOMIC_16: { 9123 struct scsi_rw_16 *cdb; 9124 9125 if (lun->be_lun->atomicblock == 0) { 9126 ctl_set_invalid_opcode(ctsio); 9127 ctl_done((union ctl_io *)ctsio); 9128 return (CTL_RETVAL_COMPLETE); 9129 } 9130 9131 cdb = (struct scsi_rw_16 *)ctsio->cdb; 9132 if (cdb->byte2 & SRW12_FUA) 9133 flags |= CTL_LLF_FUA; 9134 if (cdb->byte2 & SRW12_DPO) 9135 flags |= CTL_LLF_DPO; 9136 lba = scsi_8btou64(cdb->addr); 9137 num_blocks = scsi_4btoul(cdb->length); 9138 if (num_blocks > lun->be_lun->atomicblock) { 9139 ctl_set_invalid_field(ctsio, /*sks_valid*/ 1, 9140 /*command*/ 1, /*field*/ 12, /*bit_valid*/ 0, 9141 /*bit*/ 0); 9142 ctl_done((union ctl_io *)ctsio); 9143 return (CTL_RETVAL_COMPLETE); 9144 } 9145 break; 9146 } 9147 case WRITE_VERIFY_16: { 9148 struct scsi_write_verify_16 *cdb; 9149 9150 cdb = (struct scsi_write_verify_16 *)ctsio->cdb; 9151 flags |= CTL_LLF_FUA; 9152 if (cdb->byte2 & SWV_DPO) 9153 flags |= CTL_LLF_DPO; 9154 lba = scsi_8btou64(cdb->addr); 9155 num_blocks = scsi_4btoul(cdb->length); 9156 break; 9157 } 9158 default: 9159 /* 9160 * We got a command we don't support. This shouldn't 9161 * happen, commands should be filtered out above us. 9162 */ 9163 ctl_set_invalid_opcode(ctsio); 9164 ctl_done((union ctl_io *)ctsio); 9165 9166 return (CTL_RETVAL_COMPLETE); 9167 break; /* NOTREACHED */ 9168 } 9169 9170 /* 9171 * The first check is to make sure we're in bounds, the second 9172 * check is to catch wrap-around problems. If the lba + num blocks 9173 * is less than the lba, then we've wrapped around and the block 9174 * range is invalid anyway. 9175 */ 9176 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 9177 || ((lba + num_blocks) < lba)) { 9178 ctl_set_lba_out_of_range(ctsio); 9179 ctl_done((union ctl_io *)ctsio); 9180 return (CTL_RETVAL_COMPLETE); 9181 } 9182 9183 /* 9184 * According to SBC-3, a transfer length of 0 is not an error. 9185 * Note that this cannot happen with WRITE(6) or READ(6), since 0 9186 * translates to 256 blocks for those commands. 9187 */ 9188 if (num_blocks == 0) { 9189 ctl_set_success(ctsio); 9190 ctl_done((union ctl_io *)ctsio); 9191 return (CTL_RETVAL_COMPLETE); 9192 } 9193 9194 /* Set FUA and/or DPO if caches are disabled. */ 9195 if (isread) { 9196 if ((lun->mode_pages.caching_page[CTL_PAGE_CURRENT].flags1 & 9197 SCP_RCD) != 0) 9198 flags |= CTL_LLF_FUA | CTL_LLF_DPO; 9199 } else { 9200 if ((lun->mode_pages.caching_page[CTL_PAGE_CURRENT].flags1 & 9201 SCP_WCE) == 0) 9202 flags |= CTL_LLF_FUA; 9203 } 9204 9205 lbalen = (struct ctl_lba_len_flags *) 9206 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 9207 lbalen->lba = lba; 9208 lbalen->len = num_blocks; 9209 lbalen->flags = (isread ? CTL_LLF_READ : CTL_LLF_WRITE) | flags; 9210 9211 ctsio->kern_total_len = num_blocks * lun->be_lun->blocksize; 9212 ctsio->kern_rel_offset = 0; 9213 9214 CTL_DEBUG_PRINT(("ctl_read_write: calling data_submit()\n")); 9215 9216 retval = lun->backend->data_submit((union ctl_io *)ctsio); 9217 9218 return (retval); 9219} 9220 9221static int 9222ctl_cnw_cont(union ctl_io *io) 9223{ 9224 struct ctl_scsiio *ctsio; 9225 struct ctl_lun *lun; 9226 struct ctl_lba_len_flags *lbalen; 9227 int retval; 9228 9229 ctsio = &io->scsiio; 9230 ctsio->io_hdr.status = CTL_STATUS_NONE; 9231 ctsio->io_hdr.flags &= ~CTL_FLAG_IO_CONT; 9232 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9233 lbalen = (struct ctl_lba_len_flags *) 9234 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 9235 lbalen->flags &= ~CTL_LLF_COMPARE; 9236 lbalen->flags |= CTL_LLF_WRITE; 9237 9238 CTL_DEBUG_PRINT(("ctl_cnw_cont: calling data_submit()\n")); 9239 retval = lun->backend->data_submit((union ctl_io *)ctsio); 9240 return (retval); 9241} 9242 9243int 9244ctl_cnw(struct ctl_scsiio *ctsio) 9245{ 9246 struct ctl_lun *lun; 9247 struct ctl_lba_len_flags *lbalen; 9248 uint64_t lba; 9249 uint32_t num_blocks; 9250 int flags, retval; 9251 9252 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9253 9254 CTL_DEBUG_PRINT(("ctl_cnw: command: %#x\n", ctsio->cdb[0])); 9255 9256 flags = 0; 9257 retval = CTL_RETVAL_COMPLETE; 9258 9259 switch (ctsio->cdb[0]) { 9260 case COMPARE_AND_WRITE: { 9261 struct scsi_compare_and_write *cdb; 9262 9263 cdb = (struct scsi_compare_and_write *)ctsio->cdb; 9264 if (cdb->byte2 & SRW10_FUA) 9265 flags |= CTL_LLF_FUA; 9266 if (cdb->byte2 & SRW10_DPO) 9267 flags |= CTL_LLF_DPO; 9268 lba = scsi_8btou64(cdb->addr); 9269 num_blocks = cdb->length; 9270 break; 9271 } 9272 default: 9273 /* 9274 * We got a command we don't support. This shouldn't 9275 * happen, commands should be filtered out above us. 9276 */ 9277 ctl_set_invalid_opcode(ctsio); 9278 ctl_done((union ctl_io *)ctsio); 9279 9280 return (CTL_RETVAL_COMPLETE); 9281 break; /* NOTREACHED */ 9282 } 9283 9284 /* 9285 * The first check is to make sure we're in bounds, the second 9286 * check is to catch wrap-around problems. If the lba + num blocks 9287 * is less than the lba, then we've wrapped around and the block 9288 * range is invalid anyway. 9289 */ 9290 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 9291 || ((lba + num_blocks) < lba)) { 9292 ctl_set_lba_out_of_range(ctsio); 9293 ctl_done((union ctl_io *)ctsio); 9294 return (CTL_RETVAL_COMPLETE); 9295 } 9296 9297 /* 9298 * According to SBC-3, a transfer length of 0 is not an error. 9299 */ 9300 if (num_blocks == 0) { 9301 ctl_set_success(ctsio); 9302 ctl_done((union ctl_io *)ctsio); 9303 return (CTL_RETVAL_COMPLETE); 9304 } 9305 9306 /* Set FUA if write cache is disabled. */ 9307 if ((lun->mode_pages.caching_page[CTL_PAGE_CURRENT].flags1 & 9308 SCP_WCE) == 0) 9309 flags |= CTL_LLF_FUA; 9310 9311 ctsio->kern_total_len = 2 * num_blocks * lun->be_lun->blocksize; 9312 ctsio->kern_rel_offset = 0; 9313 9314 /* 9315 * Set the IO_CONT flag, so that if this I/O gets passed to 9316 * ctl_data_submit_done(), it'll get passed back to 9317 * ctl_ctl_cnw_cont() for further processing. 9318 */ 9319 ctsio->io_hdr.flags |= CTL_FLAG_IO_CONT; 9320 ctsio->io_cont = ctl_cnw_cont; 9321 9322 lbalen = (struct ctl_lba_len_flags *) 9323 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 9324 lbalen->lba = lba; 9325 lbalen->len = num_blocks; 9326 lbalen->flags = CTL_LLF_COMPARE | flags; 9327 9328 CTL_DEBUG_PRINT(("ctl_cnw: calling data_submit()\n")); 9329 retval = lun->backend->data_submit((union ctl_io *)ctsio); 9330 return (retval); 9331} 9332 9333int 9334ctl_verify(struct ctl_scsiio *ctsio) 9335{ 9336 struct ctl_lun *lun; 9337 struct ctl_lba_len_flags *lbalen; 9338 uint64_t lba; 9339 uint32_t num_blocks; 9340 int bytchk, flags; 9341 int retval; 9342 9343 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9344 9345 CTL_DEBUG_PRINT(("ctl_verify: command: %#x\n", ctsio->cdb[0])); 9346 9347 bytchk = 0; 9348 flags = CTL_LLF_FUA; 9349 retval = CTL_RETVAL_COMPLETE; 9350 9351 switch (ctsio->cdb[0]) { 9352 case VERIFY_10: { 9353 struct scsi_verify_10 *cdb; 9354 9355 cdb = (struct scsi_verify_10 *)ctsio->cdb; 9356 if (cdb->byte2 & SVFY_BYTCHK) 9357 bytchk = 1; 9358 if (cdb->byte2 & SVFY_DPO) 9359 flags |= CTL_LLF_DPO; 9360 lba = scsi_4btoul(cdb->addr); 9361 num_blocks = scsi_2btoul(cdb->length); 9362 break; 9363 } 9364 case VERIFY_12: { 9365 struct scsi_verify_12 *cdb; 9366 9367 cdb = (struct scsi_verify_12 *)ctsio->cdb; 9368 if (cdb->byte2 & SVFY_BYTCHK) 9369 bytchk = 1; 9370 if (cdb->byte2 & SVFY_DPO) 9371 flags |= CTL_LLF_DPO; 9372 lba = scsi_4btoul(cdb->addr); 9373 num_blocks = scsi_4btoul(cdb->length); 9374 break; 9375 } 9376 case VERIFY_16: { 9377 struct scsi_rw_16 *cdb; 9378 9379 cdb = (struct scsi_rw_16 *)ctsio->cdb; 9380 if (cdb->byte2 & SVFY_BYTCHK) 9381 bytchk = 1; 9382 if (cdb->byte2 & SVFY_DPO) 9383 flags |= CTL_LLF_DPO; 9384 lba = scsi_8btou64(cdb->addr); 9385 num_blocks = scsi_4btoul(cdb->length); 9386 break; 9387 } 9388 default: 9389 /* 9390 * We got a command we don't support. This shouldn't 9391 * happen, commands should be filtered out above us. 9392 */ 9393 ctl_set_invalid_opcode(ctsio); 9394 ctl_done((union ctl_io *)ctsio); 9395 return (CTL_RETVAL_COMPLETE); 9396 } 9397 9398 /* 9399 * The first check is to make sure we're in bounds, the second 9400 * check is to catch wrap-around problems. If the lba + num blocks 9401 * is less than the lba, then we've wrapped around and the block 9402 * range is invalid anyway. 9403 */ 9404 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 9405 || ((lba + num_blocks) < lba)) { 9406 ctl_set_lba_out_of_range(ctsio); 9407 ctl_done((union ctl_io *)ctsio); 9408 return (CTL_RETVAL_COMPLETE); 9409 } 9410 9411 /* 9412 * According to SBC-3, a transfer length of 0 is not an error. 9413 */ 9414 if (num_blocks == 0) { 9415 ctl_set_success(ctsio); 9416 ctl_done((union ctl_io *)ctsio); 9417 return (CTL_RETVAL_COMPLETE); 9418 } 9419 9420 lbalen = (struct ctl_lba_len_flags *) 9421 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 9422 lbalen->lba = lba; 9423 lbalen->len = num_blocks; 9424 if (bytchk) { 9425 lbalen->flags = CTL_LLF_COMPARE | flags; 9426 ctsio->kern_total_len = num_blocks * lun->be_lun->blocksize; 9427 } else { 9428 lbalen->flags = CTL_LLF_VERIFY | flags; 9429 ctsio->kern_total_len = 0; 9430 } 9431 ctsio->kern_rel_offset = 0; 9432 9433 CTL_DEBUG_PRINT(("ctl_verify: calling data_submit()\n")); 9434 retval = lun->backend->data_submit((union ctl_io *)ctsio); 9435 return (retval); 9436} 9437 9438int 9439ctl_report_luns(struct ctl_scsiio *ctsio) 9440{ 9441 struct ctl_softc *softc = control_softc; 9442 struct scsi_report_luns *cdb; 9443 struct scsi_report_luns_data *lun_data; 9444 struct ctl_lun *lun, *request_lun; 9445 struct ctl_port *port; 9446 int num_luns, retval; 9447 uint32_t alloc_len, lun_datalen; 9448 int num_filled, well_known; 9449 uint32_t initidx, targ_lun_id, lun_id; 9450 9451 retval = CTL_RETVAL_COMPLETE; 9452 well_known = 0; 9453 9454 cdb = (struct scsi_report_luns *)ctsio->cdb; 9455 9456 CTL_DEBUG_PRINT(("ctl_report_luns\n")); 9457 9458 mtx_lock(&softc->ctl_lock); 9459 num_luns = softc->num_luns; 9460 mtx_unlock(&softc->ctl_lock); 9461 9462 switch (cdb->select_report) { 9463 case RPL_REPORT_DEFAULT: 9464 case RPL_REPORT_ALL: 9465 break; 9466 case RPL_REPORT_WELLKNOWN: 9467 well_known = 1; 9468 num_luns = 0; 9469 break; 9470 default: 9471 ctl_set_invalid_field(ctsio, 9472 /*sks_valid*/ 1, 9473 /*command*/ 1, 9474 /*field*/ 2, 9475 /*bit_valid*/ 0, 9476 /*bit*/ 0); 9477 ctl_done((union ctl_io *)ctsio); 9478 return (retval); 9479 break; /* NOTREACHED */ 9480 } 9481 9482 alloc_len = scsi_4btoul(cdb->length); 9483 /* 9484 * The initiator has to allocate at least 16 bytes for this request, 9485 * so he can at least get the header and the first LUN. Otherwise 9486 * we reject the request (per SPC-3 rev 14, section 6.21). 9487 */ 9488 if (alloc_len < (sizeof(struct scsi_report_luns_data) + 9489 sizeof(struct scsi_report_luns_lundata))) { 9490 ctl_set_invalid_field(ctsio, 9491 /*sks_valid*/ 1, 9492 /*command*/ 1, 9493 /*field*/ 6, 9494 /*bit_valid*/ 0, 9495 /*bit*/ 0); 9496 ctl_done((union ctl_io *)ctsio); 9497 return (retval); 9498 } 9499 9500 request_lun = (struct ctl_lun *) 9501 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9502 port = ctl_io_port(&ctsio->io_hdr); 9503 9504 lun_datalen = sizeof(*lun_data) + 9505 (num_luns * sizeof(struct scsi_report_luns_lundata)); 9506 9507 ctsio->kern_data_ptr = malloc(lun_datalen, M_CTL, M_WAITOK | M_ZERO); 9508 lun_data = (struct scsi_report_luns_data *)ctsio->kern_data_ptr; 9509 ctsio->kern_sg_entries = 0; 9510 9511 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 9512 9513 mtx_lock(&softc->ctl_lock); 9514 for (targ_lun_id = 0, num_filled = 0; targ_lun_id < CTL_MAX_LUNS && num_filled < num_luns; targ_lun_id++) { 9515 lun_id = ctl_lun_map_from_port(port, targ_lun_id); 9516 if (lun_id >= CTL_MAX_LUNS) 9517 continue; 9518 lun = softc->ctl_luns[lun_id]; 9519 if (lun == NULL) 9520 continue; 9521 9522 if (targ_lun_id <= 0xff) { 9523 /* 9524 * Peripheral addressing method, bus number 0. 9525 */ 9526 lun_data->luns[num_filled].lundata[0] = 9527 RPL_LUNDATA_ATYP_PERIPH; 9528 lun_data->luns[num_filled].lundata[1] = targ_lun_id; 9529 num_filled++; 9530 } else if (targ_lun_id <= 0x3fff) { 9531 /* 9532 * Flat addressing method. 9533 */ 9534 lun_data->luns[num_filled].lundata[0] = 9535 RPL_LUNDATA_ATYP_FLAT | (targ_lun_id >> 8); 9536 lun_data->luns[num_filled].lundata[1] = 9537 (targ_lun_id & 0xff); 9538 num_filled++; 9539 } else if (targ_lun_id <= 0xffffff) { 9540 /* 9541 * Extended flat addressing method. 9542 */ 9543 lun_data->luns[num_filled].lundata[0] = 9544 RPL_LUNDATA_ATYP_EXTLUN | 0x12; 9545 scsi_ulto3b(targ_lun_id, 9546 &lun_data->luns[num_filled].lundata[1]); 9547 num_filled++; 9548 } else { 9549 printf("ctl_report_luns: bogus LUN number %jd, " 9550 "skipping\n", (intmax_t)targ_lun_id); 9551 } 9552 /* 9553 * According to SPC-3, rev 14 section 6.21: 9554 * 9555 * "The execution of a REPORT LUNS command to any valid and 9556 * installed logical unit shall clear the REPORTED LUNS DATA 9557 * HAS CHANGED unit attention condition for all logical 9558 * units of that target with respect to the requesting 9559 * initiator. A valid and installed logical unit is one 9560 * having a PERIPHERAL QUALIFIER of 000b in the standard 9561 * INQUIRY data (see 6.4.2)." 9562 * 9563 * If request_lun is NULL, the LUN this report luns command 9564 * was issued to is either disabled or doesn't exist. In that 9565 * case, we shouldn't clear any pending lun change unit 9566 * attention. 9567 */ 9568 if (request_lun != NULL) { 9569 mtx_lock(&lun->lun_lock); 9570 ctl_clr_ua(lun, initidx, CTL_UA_RES_RELEASE); 9571 mtx_unlock(&lun->lun_lock); 9572 } 9573 } 9574 mtx_unlock(&softc->ctl_lock); 9575 9576 /* 9577 * It's quite possible that we've returned fewer LUNs than we allocated 9578 * space for. Trim it. 9579 */ 9580 lun_datalen = sizeof(*lun_data) + 9581 (num_filled * sizeof(struct scsi_report_luns_lundata)); 9582 9583 if (lun_datalen < alloc_len) { 9584 ctsio->residual = alloc_len - lun_datalen; 9585 ctsio->kern_data_len = lun_datalen; 9586 ctsio->kern_total_len = lun_datalen; 9587 } else { 9588 ctsio->residual = 0; 9589 ctsio->kern_data_len = alloc_len; 9590 ctsio->kern_total_len = alloc_len; 9591 } 9592 ctsio->kern_data_resid = 0; 9593 ctsio->kern_rel_offset = 0; 9594 ctsio->kern_sg_entries = 0; 9595 9596 /* 9597 * We set this to the actual data length, regardless of how much 9598 * space we actually have to return results. If the user looks at 9599 * this value, he'll know whether or not he allocated enough space 9600 * and reissue the command if necessary. We don't support well 9601 * known logical units, so if the user asks for that, return none. 9602 */ 9603 scsi_ulto4b(lun_datalen - 8, lun_data->length); 9604 9605 /* 9606 * We can only return SCSI_STATUS_CHECK_COND when we can't satisfy 9607 * this request. 9608 */ 9609 ctl_set_success(ctsio); 9610 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9611 ctsio->be_move_done = ctl_config_move_done; 9612 ctl_datamove((union ctl_io *)ctsio); 9613 return (retval); 9614} 9615 9616int 9617ctl_request_sense(struct ctl_scsiio *ctsio) 9618{ 9619 struct scsi_request_sense *cdb; 9620 struct scsi_sense_data *sense_ptr; 9621 struct ctl_softc *ctl_softc; 9622 struct ctl_lun *lun; 9623 uint32_t initidx; 9624 int have_error; 9625 scsi_sense_data_type sense_format; 9626 ctl_ua_type ua_type; 9627 9628 cdb = (struct scsi_request_sense *)ctsio->cdb; 9629 9630 ctl_softc = control_softc; 9631 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9632 9633 CTL_DEBUG_PRINT(("ctl_request_sense\n")); 9634 9635 /* 9636 * Determine which sense format the user wants. 9637 */ 9638 if (cdb->byte2 & SRS_DESC) 9639 sense_format = SSD_TYPE_DESC; 9640 else 9641 sense_format = SSD_TYPE_FIXED; 9642 9643 ctsio->kern_data_ptr = malloc(sizeof(*sense_ptr), M_CTL, M_WAITOK); 9644 sense_ptr = (struct scsi_sense_data *)ctsio->kern_data_ptr; 9645 ctsio->kern_sg_entries = 0; 9646 9647 /* 9648 * struct scsi_sense_data, which is currently set to 256 bytes, is 9649 * larger than the largest allowed value for the length field in the 9650 * REQUEST SENSE CDB, which is 252 bytes as of SPC-4. 9651 */ 9652 ctsio->residual = 0; 9653 ctsio->kern_data_len = cdb->length; 9654 ctsio->kern_total_len = cdb->length; 9655 9656 ctsio->kern_data_resid = 0; 9657 ctsio->kern_rel_offset = 0; 9658 ctsio->kern_sg_entries = 0; 9659 9660 /* 9661 * If we don't have a LUN, we don't have any pending sense. 9662 */ 9663 if (lun == NULL) 9664 goto no_sense; 9665 9666 have_error = 0; 9667 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 9668 /* 9669 * Check for pending sense, and then for pending unit attentions. 9670 * Pending sense gets returned first, then pending unit attentions. 9671 */ 9672 mtx_lock(&lun->lun_lock); 9673#ifdef CTL_WITH_CA 9674 if (ctl_is_set(lun->have_ca, initidx)) { 9675 scsi_sense_data_type stored_format; 9676 9677 /* 9678 * Check to see which sense format was used for the stored 9679 * sense data. 9680 */ 9681 stored_format = scsi_sense_type(&lun->pending_sense[initidx]); 9682 9683 /* 9684 * If the user requested a different sense format than the 9685 * one we stored, then we need to convert it to the other 9686 * format. If we're going from descriptor to fixed format 9687 * sense data, we may lose things in translation, depending 9688 * on what options were used. 9689 * 9690 * If the stored format is SSD_TYPE_NONE (i.e. invalid), 9691 * for some reason we'll just copy it out as-is. 9692 */ 9693 if ((stored_format == SSD_TYPE_FIXED) 9694 && (sense_format == SSD_TYPE_DESC)) 9695 ctl_sense_to_desc((struct scsi_sense_data_fixed *) 9696 &lun->pending_sense[initidx], 9697 (struct scsi_sense_data_desc *)sense_ptr); 9698 else if ((stored_format == SSD_TYPE_DESC) 9699 && (sense_format == SSD_TYPE_FIXED)) 9700 ctl_sense_to_fixed((struct scsi_sense_data_desc *) 9701 &lun->pending_sense[initidx], 9702 (struct scsi_sense_data_fixed *)sense_ptr); 9703 else 9704 memcpy(sense_ptr, &lun->pending_sense[initidx], 9705 MIN(sizeof(*sense_ptr), 9706 sizeof(lun->pending_sense[initidx]))); 9707 9708 ctl_clear_mask(lun->have_ca, initidx); 9709 have_error = 1; 9710 } else 9711#endif 9712 { 9713 ua_type = ctl_build_ua(lun, initidx, sense_ptr, sense_format); 9714 if (ua_type != CTL_UA_NONE) 9715 have_error = 1; 9716 if (ua_type == CTL_UA_LUN_CHANGE) { 9717 mtx_unlock(&lun->lun_lock); 9718 mtx_lock(&ctl_softc->ctl_lock); 9719 ctl_clear_ua(ctl_softc, initidx, ua_type); 9720 mtx_unlock(&ctl_softc->ctl_lock); 9721 mtx_lock(&lun->lun_lock); 9722 } 9723 9724 } 9725 mtx_unlock(&lun->lun_lock); 9726 9727 /* 9728 * We already have a pending error, return it. 9729 */ 9730 if (have_error != 0) { 9731 /* 9732 * We report the SCSI status as OK, since the status of the 9733 * request sense command itself is OK. 9734 * We report 0 for the sense length, because we aren't doing 9735 * autosense in this case. We're reporting sense as 9736 * parameter data. 9737 */ 9738 ctl_set_success(ctsio); 9739 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9740 ctsio->be_move_done = ctl_config_move_done; 9741 ctl_datamove((union ctl_io *)ctsio); 9742 return (CTL_RETVAL_COMPLETE); 9743 } 9744 9745no_sense: 9746 9747 /* 9748 * No sense information to report, so we report that everything is 9749 * okay. 9750 */ 9751 ctl_set_sense_data(sense_ptr, 9752 lun, 9753 sense_format, 9754 /*current_error*/ 1, 9755 /*sense_key*/ SSD_KEY_NO_SENSE, 9756 /*asc*/ 0x00, 9757 /*ascq*/ 0x00, 9758 SSD_ELEM_NONE); 9759 9760 /* 9761 * We report 0 for the sense length, because we aren't doing 9762 * autosense in this case. We're reporting sense as parameter data. 9763 */ 9764 ctl_set_success(ctsio); 9765 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9766 ctsio->be_move_done = ctl_config_move_done; 9767 ctl_datamove((union ctl_io *)ctsio); 9768 return (CTL_RETVAL_COMPLETE); 9769} 9770 9771int 9772ctl_tur(struct ctl_scsiio *ctsio) 9773{ 9774 9775 CTL_DEBUG_PRINT(("ctl_tur\n")); 9776 9777 ctl_set_success(ctsio); 9778 ctl_done((union ctl_io *)ctsio); 9779 9780 return (CTL_RETVAL_COMPLETE); 9781} 9782 9783#ifdef notyet 9784static int 9785ctl_cmddt_inquiry(struct ctl_scsiio *ctsio) 9786{ 9787 9788} 9789#endif 9790 9791/* 9792 * SCSI VPD page 0x00, the Supported VPD Pages page. 9793 */ 9794static int 9795ctl_inquiry_evpd_supported(struct ctl_scsiio *ctsio, int alloc_len) 9796{ 9797 struct scsi_vpd_supported_pages *pages; 9798 int sup_page_size; 9799 struct ctl_lun *lun; 9800 int p; 9801 9802 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9803 9804 sup_page_size = sizeof(struct scsi_vpd_supported_pages) * 9805 SCSI_EVPD_NUM_SUPPORTED_PAGES; 9806 ctsio->kern_data_ptr = malloc(sup_page_size, M_CTL, M_WAITOK | M_ZERO); 9807 pages = (struct scsi_vpd_supported_pages *)ctsio->kern_data_ptr; 9808 ctsio->kern_sg_entries = 0; 9809 9810 if (sup_page_size < alloc_len) { 9811 ctsio->residual = alloc_len - sup_page_size; 9812 ctsio->kern_data_len = sup_page_size; 9813 ctsio->kern_total_len = sup_page_size; 9814 } else { 9815 ctsio->residual = 0; 9816 ctsio->kern_data_len = alloc_len; 9817 ctsio->kern_total_len = alloc_len; 9818 } 9819 ctsio->kern_data_resid = 0; 9820 ctsio->kern_rel_offset = 0; 9821 ctsio->kern_sg_entries = 0; 9822 9823 /* 9824 * The control device is always connected. The disk device, on the 9825 * other hand, may not be online all the time. Need to change this 9826 * to figure out whether the disk device is actually online or not. 9827 */ 9828 if (lun != NULL) 9829 pages->device = (SID_QUAL_LU_CONNECTED << 5) | 9830 lun->be_lun->lun_type; 9831 else 9832 pages->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9833 9834 p = 0; 9835 /* Supported VPD pages */ 9836 pages->page_list[p++] = SVPD_SUPPORTED_PAGES; 9837 /* Serial Number */ 9838 pages->page_list[p++] = SVPD_UNIT_SERIAL_NUMBER; 9839 /* Device Identification */ 9840 pages->page_list[p++] = SVPD_DEVICE_ID; 9841 /* Extended INQUIRY Data */ 9842 pages->page_list[p++] = SVPD_EXTENDED_INQUIRY_DATA; 9843 /* Mode Page Policy */ 9844 pages->page_list[p++] = SVPD_MODE_PAGE_POLICY; 9845 /* SCSI Ports */ 9846 pages->page_list[p++] = SVPD_SCSI_PORTS; 9847 /* Third-party Copy */ 9848 pages->page_list[p++] = SVPD_SCSI_TPC; 9849 if (lun != NULL && lun->be_lun->lun_type == T_DIRECT) { 9850 /* Block limits */ 9851 pages->page_list[p++] = SVPD_BLOCK_LIMITS; 9852 /* Block Device Characteristics */ 9853 pages->page_list[p++] = SVPD_BDC; 9854 /* Logical Block Provisioning */ 9855 pages->page_list[p++] = SVPD_LBP; 9856 } 9857 pages->length = p; 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 0x80, the Unit Serial Number page. 9868 */ 9869static int 9870ctl_inquiry_evpd_serial(struct ctl_scsiio *ctsio, int alloc_len) 9871{ 9872 struct scsi_vpd_unit_serial_number *sn_ptr; 9873 struct ctl_lun *lun; 9874 int data_len; 9875 9876 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9877 9878 data_len = 4 + CTL_SN_LEN; 9879 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9880 sn_ptr = (struct scsi_vpd_unit_serial_number *)ctsio->kern_data_ptr; 9881 if (data_len < alloc_len) { 9882 ctsio->residual = alloc_len - data_len; 9883 ctsio->kern_data_len = data_len; 9884 ctsio->kern_total_len = data_len; 9885 } else { 9886 ctsio->residual = 0; 9887 ctsio->kern_data_len = alloc_len; 9888 ctsio->kern_total_len = alloc_len; 9889 } 9890 ctsio->kern_data_resid = 0; 9891 ctsio->kern_rel_offset = 0; 9892 ctsio->kern_sg_entries = 0; 9893 9894 /* 9895 * The control device is always connected. The disk device, on the 9896 * other hand, may not be online all the time. Need to change this 9897 * to figure out whether the disk device is actually online or not. 9898 */ 9899 if (lun != NULL) 9900 sn_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9901 lun->be_lun->lun_type; 9902 else 9903 sn_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9904 9905 sn_ptr->page_code = SVPD_UNIT_SERIAL_NUMBER; 9906 sn_ptr->length = CTL_SN_LEN; 9907 /* 9908 * If we don't have a LUN, we just leave the serial number as 9909 * all spaces. 9910 */ 9911 if (lun != NULL) { 9912 strncpy((char *)sn_ptr->serial_num, 9913 (char *)lun->be_lun->serial_num, CTL_SN_LEN); 9914 } else 9915 memset(sn_ptr->serial_num, 0x20, CTL_SN_LEN); 9916 9917 ctl_set_success(ctsio); 9918 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9919 ctsio->be_move_done = ctl_config_move_done; 9920 ctl_datamove((union ctl_io *)ctsio); 9921 return (CTL_RETVAL_COMPLETE); 9922} 9923 9924 9925/* 9926 * SCSI VPD page 0x86, the Extended INQUIRY Data page. 9927 */ 9928static int 9929ctl_inquiry_evpd_eid(struct ctl_scsiio *ctsio, int alloc_len) 9930{ 9931 struct scsi_vpd_extended_inquiry_data *eid_ptr; 9932 struct ctl_lun *lun; 9933 int data_len; 9934 9935 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9936 9937 data_len = sizeof(struct scsi_vpd_extended_inquiry_data); 9938 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9939 eid_ptr = (struct scsi_vpd_extended_inquiry_data *)ctsio->kern_data_ptr; 9940 ctsio->kern_sg_entries = 0; 9941 9942 if (data_len < alloc_len) { 9943 ctsio->residual = alloc_len - data_len; 9944 ctsio->kern_data_len = data_len; 9945 ctsio->kern_total_len = data_len; 9946 } else { 9947 ctsio->residual = 0; 9948 ctsio->kern_data_len = alloc_len; 9949 ctsio->kern_total_len = alloc_len; 9950 } 9951 ctsio->kern_data_resid = 0; 9952 ctsio->kern_rel_offset = 0; 9953 ctsio->kern_sg_entries = 0; 9954 9955 /* 9956 * The control device is always connected. The disk device, on the 9957 * other hand, may not be online all the time. 9958 */ 9959 if (lun != NULL) 9960 eid_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9961 lun->be_lun->lun_type; 9962 else 9963 eid_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9964 eid_ptr->page_code = SVPD_EXTENDED_INQUIRY_DATA; 9965 scsi_ulto2b(data_len - 4, eid_ptr->page_length); 9966 /* 9967 * We support head of queue, ordered and simple tags. 9968 */ 9969 eid_ptr->flags2 = SVPD_EID_HEADSUP | SVPD_EID_ORDSUP | SVPD_EID_SIMPSUP; 9970 /* 9971 * Volatile cache supported. 9972 */ 9973 eid_ptr->flags3 = SVPD_EID_V_SUP; 9974 9975 /* 9976 * This means that we clear the REPORTED LUNS DATA HAS CHANGED unit 9977 * attention for a particular IT nexus on all LUNs once we report 9978 * it to that nexus once. This bit is required as of SPC-4. 9979 */ 9980 eid_ptr->flags4 = SVPD_EID_LUICLT; 9981 9982 /* 9983 * XXX KDM in order to correctly answer this, we would need 9984 * information from the SIM to determine how much sense data it 9985 * can send. So this would really be a path inquiry field, most 9986 * likely. This can be set to a maximum of 252 according to SPC-4, 9987 * but the hardware may or may not be able to support that much. 9988 * 0 just means that the maximum sense data length is not reported. 9989 */ 9990 eid_ptr->max_sense_length = 0; 9991 9992 ctl_set_success(ctsio); 9993 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9994 ctsio->be_move_done = ctl_config_move_done; 9995 ctl_datamove((union ctl_io *)ctsio); 9996 return (CTL_RETVAL_COMPLETE); 9997} 9998 9999static int 10000ctl_inquiry_evpd_mpp(struct ctl_scsiio *ctsio, int alloc_len) 10001{ 10002 struct scsi_vpd_mode_page_policy *mpp_ptr; 10003 struct ctl_lun *lun; 10004 int data_len; 10005 10006 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10007 10008 data_len = sizeof(struct scsi_vpd_mode_page_policy) + 10009 sizeof(struct scsi_vpd_mode_page_policy_descr); 10010 10011 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 10012 mpp_ptr = (struct scsi_vpd_mode_page_policy *)ctsio->kern_data_ptr; 10013 ctsio->kern_sg_entries = 0; 10014 10015 if (data_len < alloc_len) { 10016 ctsio->residual = alloc_len - data_len; 10017 ctsio->kern_data_len = data_len; 10018 ctsio->kern_total_len = data_len; 10019 } else { 10020 ctsio->residual = 0; 10021 ctsio->kern_data_len = alloc_len; 10022 ctsio->kern_total_len = alloc_len; 10023 } 10024 ctsio->kern_data_resid = 0; 10025 ctsio->kern_rel_offset = 0; 10026 ctsio->kern_sg_entries = 0; 10027 10028 /* 10029 * The control device is always connected. The disk device, on the 10030 * other hand, may not be online all the time. 10031 */ 10032 if (lun != NULL) 10033 mpp_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10034 lun->be_lun->lun_type; 10035 else 10036 mpp_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10037 mpp_ptr->page_code = SVPD_MODE_PAGE_POLICY; 10038 scsi_ulto2b(data_len - 4, mpp_ptr->page_length); 10039 mpp_ptr->descr[0].page_code = 0x3f; 10040 mpp_ptr->descr[0].subpage_code = 0xff; 10041 mpp_ptr->descr[0].policy = SVPD_MPP_SHARED; 10042 10043 ctl_set_success(ctsio); 10044 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10045 ctsio->be_move_done = ctl_config_move_done; 10046 ctl_datamove((union ctl_io *)ctsio); 10047 return (CTL_RETVAL_COMPLETE); 10048} 10049 10050/* 10051 * SCSI VPD page 0x83, the Device Identification page. 10052 */ 10053static int 10054ctl_inquiry_evpd_devid(struct ctl_scsiio *ctsio, int alloc_len) 10055{ 10056 struct scsi_vpd_device_id *devid_ptr; 10057 struct scsi_vpd_id_descriptor *desc; 10058 struct ctl_softc *softc; 10059 struct ctl_lun *lun; 10060 struct ctl_port *port; 10061 int data_len; 10062 uint8_t proto; 10063 10064 softc = control_softc; 10065 10066 port = softc->ctl_ports[ctl_port_idx(ctsio->io_hdr.nexus.targ_port)]; 10067 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10068 10069 data_len = sizeof(struct scsi_vpd_device_id) + 10070 sizeof(struct scsi_vpd_id_descriptor) + 10071 sizeof(struct scsi_vpd_id_rel_trgt_port_id) + 10072 sizeof(struct scsi_vpd_id_descriptor) + 10073 sizeof(struct scsi_vpd_id_trgt_port_grp_id); 10074 if (lun && lun->lun_devid) 10075 data_len += lun->lun_devid->len; 10076 if (port->port_devid) 10077 data_len += port->port_devid->len; 10078 if (port->target_devid) 10079 data_len += port->target_devid->len; 10080 10081 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 10082 devid_ptr = (struct scsi_vpd_device_id *)ctsio->kern_data_ptr; 10083 ctsio->kern_sg_entries = 0; 10084 10085 if (data_len < alloc_len) { 10086 ctsio->residual = alloc_len - data_len; 10087 ctsio->kern_data_len = data_len; 10088 ctsio->kern_total_len = data_len; 10089 } else { 10090 ctsio->residual = 0; 10091 ctsio->kern_data_len = alloc_len; 10092 ctsio->kern_total_len = alloc_len; 10093 } 10094 ctsio->kern_data_resid = 0; 10095 ctsio->kern_rel_offset = 0; 10096 ctsio->kern_sg_entries = 0; 10097 10098 /* 10099 * The control device is always connected. The disk device, on the 10100 * other hand, may not be online all the time. 10101 */ 10102 if (lun != NULL) 10103 devid_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10104 lun->be_lun->lun_type; 10105 else 10106 devid_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10107 devid_ptr->page_code = SVPD_DEVICE_ID; 10108 scsi_ulto2b(data_len - 4, devid_ptr->length); 10109 10110 if (port->port_type == CTL_PORT_FC) 10111 proto = SCSI_PROTO_FC << 4; 10112 else if (port->port_type == CTL_PORT_ISCSI) 10113 proto = SCSI_PROTO_ISCSI << 4; 10114 else 10115 proto = SCSI_PROTO_SPI << 4; 10116 desc = (struct scsi_vpd_id_descriptor *)devid_ptr->desc_list; 10117 10118 /* 10119 * We're using a LUN association here. i.e., this device ID is a 10120 * per-LUN identifier. 10121 */ 10122 if (lun && lun->lun_devid) { 10123 memcpy(desc, lun->lun_devid->data, lun->lun_devid->len); 10124 desc = (struct scsi_vpd_id_descriptor *)((uint8_t *)desc + 10125 lun->lun_devid->len); 10126 } 10127 10128 /* 10129 * This is for the WWPN which is a port association. 10130 */ 10131 if (port->port_devid) { 10132 memcpy(desc, port->port_devid->data, port->port_devid->len); 10133 desc = (struct scsi_vpd_id_descriptor *)((uint8_t *)desc + 10134 port->port_devid->len); 10135 } 10136 10137 /* 10138 * This is for the Relative Target Port(type 4h) identifier 10139 */ 10140 desc->proto_codeset = proto | SVPD_ID_CODESET_BINARY; 10141 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_PORT | 10142 SVPD_ID_TYPE_RELTARG; 10143 desc->length = 4; 10144 scsi_ulto2b(ctsio->io_hdr.nexus.targ_port, &desc->identifier[2]); 10145 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 10146 sizeof(struct scsi_vpd_id_rel_trgt_port_id)); 10147 10148 /* 10149 * This is for the Target Port Group(type 5h) identifier 10150 */ 10151 desc->proto_codeset = proto | SVPD_ID_CODESET_BINARY; 10152 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_PORT | 10153 SVPD_ID_TYPE_TPORTGRP; 10154 desc->length = 4; 10155 scsi_ulto2b(ctsio->io_hdr.nexus.targ_port / CTL_MAX_PORTS + 1, 10156 &desc->identifier[2]); 10157 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 10158 sizeof(struct scsi_vpd_id_trgt_port_grp_id)); 10159 10160 /* 10161 * This is for the Target identifier 10162 */ 10163 if (port->target_devid) { 10164 memcpy(desc, port->target_devid->data, port->target_devid->len); 10165 } 10166 10167 ctl_set_success(ctsio); 10168 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10169 ctsio->be_move_done = ctl_config_move_done; 10170 ctl_datamove((union ctl_io *)ctsio); 10171 return (CTL_RETVAL_COMPLETE); 10172} 10173 10174static int 10175ctl_inquiry_evpd_scsi_ports(struct ctl_scsiio *ctsio, int alloc_len) 10176{ 10177 struct ctl_softc *softc = control_softc; 10178 struct scsi_vpd_scsi_ports *sp; 10179 struct scsi_vpd_port_designation *pd; 10180 struct scsi_vpd_port_designation_cont *pdc; 10181 struct ctl_lun *lun; 10182 struct ctl_port *port; 10183 int data_len, num_target_ports, iid_len, id_len, g, pg, p; 10184 int num_target_port_groups; 10185 10186 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10187 10188 if (softc->is_single) 10189 num_target_port_groups = 1; 10190 else 10191 num_target_port_groups = NUM_TARGET_PORT_GROUPS; 10192 num_target_ports = 0; 10193 iid_len = 0; 10194 id_len = 0; 10195 mtx_lock(&softc->ctl_lock); 10196 STAILQ_FOREACH(port, &softc->port_list, links) { 10197 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 10198 continue; 10199 if (lun != NULL && 10200 ctl_lun_map_to_port(port, lun->lun) >= CTL_MAX_LUNS) 10201 continue; 10202 num_target_ports++; 10203 if (port->init_devid) 10204 iid_len += port->init_devid->len; 10205 if (port->port_devid) 10206 id_len += port->port_devid->len; 10207 } 10208 mtx_unlock(&softc->ctl_lock); 10209 10210 data_len = sizeof(struct scsi_vpd_scsi_ports) + num_target_port_groups * 10211 num_target_ports * (sizeof(struct scsi_vpd_port_designation) + 10212 sizeof(struct scsi_vpd_port_designation_cont)) + iid_len + id_len; 10213 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 10214 sp = (struct scsi_vpd_scsi_ports *)ctsio->kern_data_ptr; 10215 ctsio->kern_sg_entries = 0; 10216 10217 if (data_len < alloc_len) { 10218 ctsio->residual = alloc_len - data_len; 10219 ctsio->kern_data_len = data_len; 10220 ctsio->kern_total_len = data_len; 10221 } else { 10222 ctsio->residual = 0; 10223 ctsio->kern_data_len = alloc_len; 10224 ctsio->kern_total_len = alloc_len; 10225 } 10226 ctsio->kern_data_resid = 0; 10227 ctsio->kern_rel_offset = 0; 10228 ctsio->kern_sg_entries = 0; 10229 10230 /* 10231 * The control device is always connected. The disk device, on the 10232 * other hand, may not be online all the time. Need to change this 10233 * to figure out whether the disk device is actually online or not. 10234 */ 10235 if (lun != NULL) 10236 sp->device = (SID_QUAL_LU_CONNECTED << 5) | 10237 lun->be_lun->lun_type; 10238 else 10239 sp->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10240 10241 sp->page_code = SVPD_SCSI_PORTS; 10242 scsi_ulto2b(data_len - sizeof(struct scsi_vpd_scsi_ports), 10243 sp->page_length); 10244 pd = &sp->design[0]; 10245 10246 mtx_lock(&softc->ctl_lock); 10247 pg = softc->port_offset / CTL_MAX_PORTS; 10248 for (g = 0; g < num_target_port_groups; g++) { 10249 STAILQ_FOREACH(port, &softc->port_list, links) { 10250 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 10251 continue; 10252 if (lun != NULL && 10253 ctl_lun_map_to_port(port, lun->lun) >= CTL_MAX_LUNS) 10254 continue; 10255 p = port->targ_port % CTL_MAX_PORTS + g * CTL_MAX_PORTS; 10256 scsi_ulto2b(p, pd->relative_port_id); 10257 if (port->init_devid && g == pg) { 10258 iid_len = port->init_devid->len; 10259 memcpy(pd->initiator_transportid, 10260 port->init_devid->data, port->init_devid->len); 10261 } else 10262 iid_len = 0; 10263 scsi_ulto2b(iid_len, pd->initiator_transportid_length); 10264 pdc = (struct scsi_vpd_port_designation_cont *) 10265 (&pd->initiator_transportid[iid_len]); 10266 if (port->port_devid && g == pg) { 10267 id_len = port->port_devid->len; 10268 memcpy(pdc->target_port_descriptors, 10269 port->port_devid->data, port->port_devid->len); 10270 } else 10271 id_len = 0; 10272 scsi_ulto2b(id_len, pdc->target_port_descriptors_length); 10273 pd = (struct scsi_vpd_port_designation *) 10274 ((uint8_t *)pdc->target_port_descriptors + id_len); 10275 } 10276 } 10277 mtx_unlock(&softc->ctl_lock); 10278 10279 ctl_set_success(ctsio); 10280 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10281 ctsio->be_move_done = ctl_config_move_done; 10282 ctl_datamove((union ctl_io *)ctsio); 10283 return (CTL_RETVAL_COMPLETE); 10284} 10285 10286static int 10287ctl_inquiry_evpd_block_limits(struct ctl_scsiio *ctsio, int alloc_len) 10288{ 10289 struct scsi_vpd_block_limits *bl_ptr; 10290 struct ctl_lun *lun; 10291 int bs; 10292 10293 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10294 10295 ctsio->kern_data_ptr = malloc(sizeof(*bl_ptr), M_CTL, M_WAITOK | M_ZERO); 10296 bl_ptr = (struct scsi_vpd_block_limits *)ctsio->kern_data_ptr; 10297 ctsio->kern_sg_entries = 0; 10298 10299 if (sizeof(*bl_ptr) < alloc_len) { 10300 ctsio->residual = alloc_len - sizeof(*bl_ptr); 10301 ctsio->kern_data_len = sizeof(*bl_ptr); 10302 ctsio->kern_total_len = sizeof(*bl_ptr); 10303 } else { 10304 ctsio->residual = 0; 10305 ctsio->kern_data_len = alloc_len; 10306 ctsio->kern_total_len = alloc_len; 10307 } 10308 ctsio->kern_data_resid = 0; 10309 ctsio->kern_rel_offset = 0; 10310 ctsio->kern_sg_entries = 0; 10311 10312 /* 10313 * The control device is always connected. The disk device, on the 10314 * other hand, may not be online all the time. Need to change this 10315 * to figure out whether the disk device is actually online or not. 10316 */ 10317 if (lun != NULL) 10318 bl_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10319 lun->be_lun->lun_type; 10320 else 10321 bl_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10322 10323 bl_ptr->page_code = SVPD_BLOCK_LIMITS; 10324 scsi_ulto2b(sizeof(*bl_ptr) - 4, bl_ptr->page_length); 10325 bl_ptr->max_cmp_write_len = 0xff; 10326 scsi_ulto4b(0xffffffff, bl_ptr->max_txfer_len); 10327 if (lun != NULL) { 10328 bs = lun->be_lun->blocksize; 10329 scsi_ulto4b(lun->be_lun->opttxferlen, bl_ptr->opt_txfer_len); 10330 if (lun->be_lun->flags & CTL_LUN_FLAG_UNMAP) { 10331 scsi_ulto4b(0xffffffff, bl_ptr->max_unmap_lba_cnt); 10332 scsi_ulto4b(0xffffffff, bl_ptr->max_unmap_blk_cnt); 10333 if (lun->be_lun->ublockexp != 0) { 10334 scsi_ulto4b((1 << lun->be_lun->ublockexp), 10335 bl_ptr->opt_unmap_grain); 10336 scsi_ulto4b(0x80000000 | lun->be_lun->ublockoff, 10337 bl_ptr->unmap_grain_align); 10338 } 10339 } 10340 scsi_ulto4b(lun->be_lun->atomicblock, 10341 bl_ptr->max_atomic_transfer_length); 10342 scsi_ulto4b(0, bl_ptr->atomic_alignment); 10343 scsi_ulto4b(0, bl_ptr->atomic_transfer_length_granularity); 10344 } 10345 scsi_u64to8b(UINT64_MAX, bl_ptr->max_write_same_length); 10346 10347 ctl_set_success(ctsio); 10348 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10349 ctsio->be_move_done = ctl_config_move_done; 10350 ctl_datamove((union ctl_io *)ctsio); 10351 return (CTL_RETVAL_COMPLETE); 10352} 10353 10354static int 10355ctl_inquiry_evpd_bdc(struct ctl_scsiio *ctsio, int alloc_len) 10356{ 10357 struct scsi_vpd_block_device_characteristics *bdc_ptr; 10358 struct ctl_lun *lun; 10359 const char *value; 10360 u_int i; 10361 10362 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10363 10364 ctsio->kern_data_ptr = malloc(sizeof(*bdc_ptr), M_CTL, M_WAITOK | M_ZERO); 10365 bdc_ptr = (struct scsi_vpd_block_device_characteristics *)ctsio->kern_data_ptr; 10366 ctsio->kern_sg_entries = 0; 10367 10368 if (sizeof(*bdc_ptr) < alloc_len) { 10369 ctsio->residual = alloc_len - sizeof(*bdc_ptr); 10370 ctsio->kern_data_len = sizeof(*bdc_ptr); 10371 ctsio->kern_total_len = sizeof(*bdc_ptr); 10372 } else { 10373 ctsio->residual = 0; 10374 ctsio->kern_data_len = alloc_len; 10375 ctsio->kern_total_len = alloc_len; 10376 } 10377 ctsio->kern_data_resid = 0; 10378 ctsio->kern_rel_offset = 0; 10379 ctsio->kern_sg_entries = 0; 10380 10381 /* 10382 * The control device is always connected. The disk device, on the 10383 * other hand, may not be online all the time. Need to change this 10384 * to figure out whether the disk device is actually online or not. 10385 */ 10386 if (lun != NULL) 10387 bdc_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10388 lun->be_lun->lun_type; 10389 else 10390 bdc_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10391 bdc_ptr->page_code = SVPD_BDC; 10392 scsi_ulto2b(sizeof(*bdc_ptr) - 4, bdc_ptr->page_length); 10393 if (lun != NULL && 10394 (value = ctl_get_opt(&lun->be_lun->options, "rpm")) != NULL) 10395 i = strtol(value, NULL, 0); 10396 else 10397 i = CTL_DEFAULT_ROTATION_RATE; 10398 scsi_ulto2b(i, bdc_ptr->medium_rotation_rate); 10399 if (lun != NULL && 10400 (value = ctl_get_opt(&lun->be_lun->options, "formfactor")) != NULL) 10401 i = strtol(value, NULL, 0); 10402 else 10403 i = 0; 10404 bdc_ptr->wab_wac_ff = (i & 0x0f); 10405 bdc_ptr->flags = SVPD_FUAB | SVPD_VBULS; 10406 10407 ctl_set_success(ctsio); 10408 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10409 ctsio->be_move_done = ctl_config_move_done; 10410 ctl_datamove((union ctl_io *)ctsio); 10411 return (CTL_RETVAL_COMPLETE); 10412} 10413 10414static int 10415ctl_inquiry_evpd_lbp(struct ctl_scsiio *ctsio, int alloc_len) 10416{ 10417 struct scsi_vpd_logical_block_prov *lbp_ptr; 10418 struct ctl_lun *lun; 10419 10420 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10421 10422 ctsio->kern_data_ptr = malloc(sizeof(*lbp_ptr), M_CTL, M_WAITOK | M_ZERO); 10423 lbp_ptr = (struct scsi_vpd_logical_block_prov *)ctsio->kern_data_ptr; 10424 ctsio->kern_sg_entries = 0; 10425 10426 if (sizeof(*lbp_ptr) < alloc_len) { 10427 ctsio->residual = alloc_len - sizeof(*lbp_ptr); 10428 ctsio->kern_data_len = sizeof(*lbp_ptr); 10429 ctsio->kern_total_len = sizeof(*lbp_ptr); 10430 } else { 10431 ctsio->residual = 0; 10432 ctsio->kern_data_len = alloc_len; 10433 ctsio->kern_total_len = alloc_len; 10434 } 10435 ctsio->kern_data_resid = 0; 10436 ctsio->kern_rel_offset = 0; 10437 ctsio->kern_sg_entries = 0; 10438 10439 /* 10440 * The control device is always connected. The disk device, on the 10441 * other hand, may not be online all the time. Need to change this 10442 * to figure out whether the disk device is actually online or not. 10443 */ 10444 if (lun != NULL) 10445 lbp_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10446 lun->be_lun->lun_type; 10447 else 10448 lbp_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10449 10450 lbp_ptr->page_code = SVPD_LBP; 10451 scsi_ulto2b(sizeof(*lbp_ptr) - 4, lbp_ptr->page_length); 10452 lbp_ptr->threshold_exponent = CTL_LBP_EXPONENT; 10453 if (lun != NULL && lun->be_lun->flags & CTL_LUN_FLAG_UNMAP) { 10454 lbp_ptr->flags = SVPD_LBP_UNMAP | SVPD_LBP_WS16 | 10455 SVPD_LBP_WS10 | SVPD_LBP_RZ | SVPD_LBP_ANC_SUP; 10456 lbp_ptr->prov_type = SVPD_LBP_THIN; 10457 } 10458 10459 ctl_set_success(ctsio); 10460 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10461 ctsio->be_move_done = ctl_config_move_done; 10462 ctl_datamove((union ctl_io *)ctsio); 10463 return (CTL_RETVAL_COMPLETE); 10464} 10465 10466/* 10467 * INQUIRY with the EVPD bit set. 10468 */ 10469static int 10470ctl_inquiry_evpd(struct ctl_scsiio *ctsio) 10471{ 10472 struct ctl_lun *lun; 10473 struct scsi_inquiry *cdb; 10474 int alloc_len, retval; 10475 10476 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10477 cdb = (struct scsi_inquiry *)ctsio->cdb; 10478 alloc_len = scsi_2btoul(cdb->length); 10479 10480 switch (cdb->page_code) { 10481 case SVPD_SUPPORTED_PAGES: 10482 retval = ctl_inquiry_evpd_supported(ctsio, alloc_len); 10483 break; 10484 case SVPD_UNIT_SERIAL_NUMBER: 10485 retval = ctl_inquiry_evpd_serial(ctsio, alloc_len); 10486 break; 10487 case SVPD_DEVICE_ID: 10488 retval = ctl_inquiry_evpd_devid(ctsio, alloc_len); 10489 break; 10490 case SVPD_EXTENDED_INQUIRY_DATA: 10491 retval = ctl_inquiry_evpd_eid(ctsio, alloc_len); 10492 break; 10493 case SVPD_MODE_PAGE_POLICY: 10494 retval = ctl_inquiry_evpd_mpp(ctsio, alloc_len); 10495 break; 10496 case SVPD_SCSI_PORTS: 10497 retval = ctl_inquiry_evpd_scsi_ports(ctsio, alloc_len); 10498 break; 10499 case SVPD_SCSI_TPC: 10500 retval = ctl_inquiry_evpd_tpc(ctsio, alloc_len); 10501 break; 10502 case SVPD_BLOCK_LIMITS: 10503 if (lun == NULL || lun->be_lun->lun_type != T_DIRECT) 10504 goto err; 10505 retval = ctl_inquiry_evpd_block_limits(ctsio, alloc_len); 10506 break; 10507 case SVPD_BDC: 10508 if (lun == NULL || lun->be_lun->lun_type != T_DIRECT) 10509 goto err; 10510 retval = ctl_inquiry_evpd_bdc(ctsio, alloc_len); 10511 break; 10512 case SVPD_LBP: 10513 if (lun == NULL || lun->be_lun->lun_type != T_DIRECT) 10514 goto err; 10515 retval = ctl_inquiry_evpd_lbp(ctsio, alloc_len); 10516 break; 10517 default: 10518err: 10519 ctl_set_invalid_field(ctsio, 10520 /*sks_valid*/ 1, 10521 /*command*/ 1, 10522 /*field*/ 2, 10523 /*bit_valid*/ 0, 10524 /*bit*/ 0); 10525 ctl_done((union ctl_io *)ctsio); 10526 retval = CTL_RETVAL_COMPLETE; 10527 break; 10528 } 10529 10530 return (retval); 10531} 10532 10533/* 10534 * Standard INQUIRY data. 10535 */ 10536static int 10537ctl_inquiry_std(struct ctl_scsiio *ctsio) 10538{ 10539 struct scsi_inquiry_data *inq_ptr; 10540 struct scsi_inquiry *cdb; 10541 struct ctl_softc *softc; 10542 struct ctl_lun *lun; 10543 char *val; 10544 uint32_t alloc_len, data_len; 10545 ctl_port_type port_type; 10546 10547 softc = control_softc; 10548 10549 /* 10550 * Figure out whether we're talking to a Fibre Channel port or not. 10551 * We treat the ioctl front end, and any SCSI adapters, as packetized 10552 * SCSI front ends. 10553 */ 10554 port_type = softc->ctl_ports[ 10555 ctl_port_idx(ctsio->io_hdr.nexus.targ_port)]->port_type; 10556 if (port_type == CTL_PORT_IOCTL || port_type == CTL_PORT_INTERNAL) 10557 port_type = CTL_PORT_SCSI; 10558 10559 lun = ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10560 cdb = (struct scsi_inquiry *)ctsio->cdb; 10561 alloc_len = scsi_2btoul(cdb->length); 10562 10563 /* 10564 * We malloc the full inquiry data size here and fill it 10565 * in. If the user only asks for less, we'll give him 10566 * that much. 10567 */ 10568 data_len = offsetof(struct scsi_inquiry_data, vendor_specific1); 10569 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 10570 inq_ptr = (struct scsi_inquiry_data *)ctsio->kern_data_ptr; 10571 ctsio->kern_sg_entries = 0; 10572 ctsio->kern_data_resid = 0; 10573 ctsio->kern_rel_offset = 0; 10574 10575 if (data_len < alloc_len) { 10576 ctsio->residual = alloc_len - data_len; 10577 ctsio->kern_data_len = data_len; 10578 ctsio->kern_total_len = data_len; 10579 } else { 10580 ctsio->residual = 0; 10581 ctsio->kern_data_len = alloc_len; 10582 ctsio->kern_total_len = alloc_len; 10583 } 10584 10585 /* 10586 * If we have a LUN configured, report it as connected. Otherwise, 10587 * report that it is offline or no device is supported, depending 10588 * on the value of inquiry_pq_no_lun. 10589 * 10590 * According to the spec (SPC-4 r34), the peripheral qualifier 10591 * SID_QUAL_LU_OFFLINE (001b) is used in the following scenario: 10592 * 10593 * "A peripheral device having the specified peripheral device type 10594 * is not connected to this logical unit. However, the device 10595 * server is capable of supporting the specified peripheral device 10596 * type on this logical unit." 10597 * 10598 * According to the same spec, the peripheral qualifier 10599 * SID_QUAL_BAD_LU (011b) is used in this scenario: 10600 * 10601 * "The device server is not capable of supporting a peripheral 10602 * device on this logical unit. For this peripheral qualifier the 10603 * peripheral device type shall be set to 1Fh. All other peripheral 10604 * device type values are reserved for this peripheral qualifier." 10605 * 10606 * Given the text, it would seem that we probably want to report that 10607 * the LUN is offline here. There is no LUN connected, but we can 10608 * support a LUN at the given LUN number. 10609 * 10610 * In the real world, though, it sounds like things are a little 10611 * different: 10612 * 10613 * - Linux, when presented with a LUN with the offline peripheral 10614 * qualifier, will create an sg driver instance for it. So when 10615 * you attach it to CTL, you wind up with a ton of sg driver 10616 * instances. (One for every LUN that Linux bothered to probe.) 10617 * Linux does this despite the fact that it issues a REPORT LUNs 10618 * to LUN 0 to get the inventory of supported LUNs. 10619 * 10620 * - There is other anecdotal evidence (from Emulex folks) about 10621 * arrays that use the offline peripheral qualifier for LUNs that 10622 * are on the "passive" path in an active/passive array. 10623 * 10624 * So the solution is provide a hopefully reasonable default 10625 * (return bad/no LUN) and allow the user to change the behavior 10626 * with a tunable/sysctl variable. 10627 */ 10628 if (lun != NULL) 10629 inq_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10630 lun->be_lun->lun_type; 10631 else if (softc->inquiry_pq_no_lun == 0) 10632 inq_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10633 else 10634 inq_ptr->device = (SID_QUAL_BAD_LU << 5) | T_NODEVICE; 10635 10636 /* RMB in byte 2 is 0 */ 10637 inq_ptr->version = SCSI_REV_SPC4; 10638 10639 /* 10640 * According to SAM-3, even if a device only supports a single 10641 * level of LUN addressing, it should still set the HISUP bit: 10642 * 10643 * 4.9.1 Logical unit numbers overview 10644 * 10645 * All logical unit number formats described in this standard are 10646 * hierarchical in structure even when only a single level in that 10647 * hierarchy is used. The HISUP bit shall be set to one in the 10648 * standard INQUIRY data (see SPC-2) when any logical unit number 10649 * format described in this standard is used. Non-hierarchical 10650 * formats are outside the scope of this standard. 10651 * 10652 * Therefore we set the HiSup bit here. 10653 * 10654 * The reponse format is 2, per SPC-3. 10655 */ 10656 inq_ptr->response_format = SID_HiSup | 2; 10657 10658 inq_ptr->additional_length = data_len - 10659 (offsetof(struct scsi_inquiry_data, additional_length) + 1); 10660 CTL_DEBUG_PRINT(("additional_length = %d\n", 10661 inq_ptr->additional_length)); 10662 10663 inq_ptr->spc3_flags = SPC3_SID_3PC | SPC3_SID_TPGS_IMPLICIT; 10664 /* 16 bit addressing */ 10665 if (port_type == CTL_PORT_SCSI) 10666 inq_ptr->spc2_flags = SPC2_SID_ADDR16; 10667 /* XXX set the SID_MultiP bit here if we're actually going to 10668 respond on multiple ports */ 10669 inq_ptr->spc2_flags |= SPC2_SID_MultiP; 10670 10671 /* 16 bit data bus, synchronous transfers */ 10672 if (port_type == CTL_PORT_SCSI) 10673 inq_ptr->flags = SID_WBus16 | SID_Sync; 10674 /* 10675 * XXX KDM do we want to support tagged queueing on the control 10676 * device at all? 10677 */ 10678 if ((lun == NULL) 10679 || (lun->be_lun->lun_type != T_PROCESSOR)) 10680 inq_ptr->flags |= SID_CmdQue; 10681 /* 10682 * Per SPC-3, unused bytes in ASCII strings are filled with spaces. 10683 * We have 8 bytes for the vendor name, and 16 bytes for the device 10684 * name and 4 bytes for the revision. 10685 */ 10686 if (lun == NULL || (val = ctl_get_opt(&lun->be_lun->options, 10687 "vendor")) == NULL) { 10688 strncpy(inq_ptr->vendor, CTL_VENDOR, sizeof(inq_ptr->vendor)); 10689 } else { 10690 memset(inq_ptr->vendor, ' ', sizeof(inq_ptr->vendor)); 10691 strncpy(inq_ptr->vendor, val, 10692 min(sizeof(inq_ptr->vendor), strlen(val))); 10693 } 10694 if (lun == NULL) { 10695 strncpy(inq_ptr->product, CTL_DIRECT_PRODUCT, 10696 sizeof(inq_ptr->product)); 10697 } else if ((val = ctl_get_opt(&lun->be_lun->options, "product")) == NULL) { 10698 switch (lun->be_lun->lun_type) { 10699 case T_DIRECT: 10700 strncpy(inq_ptr->product, CTL_DIRECT_PRODUCT, 10701 sizeof(inq_ptr->product)); 10702 break; 10703 case T_PROCESSOR: 10704 strncpy(inq_ptr->product, CTL_PROCESSOR_PRODUCT, 10705 sizeof(inq_ptr->product)); 10706 break; 10707 default: 10708 strncpy(inq_ptr->product, CTL_UNKNOWN_PRODUCT, 10709 sizeof(inq_ptr->product)); 10710 break; 10711 } 10712 } else { 10713 memset(inq_ptr->product, ' ', sizeof(inq_ptr->product)); 10714 strncpy(inq_ptr->product, val, 10715 min(sizeof(inq_ptr->product), strlen(val))); 10716 } 10717 10718 /* 10719 * XXX make this a macro somewhere so it automatically gets 10720 * incremented when we make changes. 10721 */ 10722 if (lun == NULL || (val = ctl_get_opt(&lun->be_lun->options, 10723 "revision")) == NULL) { 10724 strncpy(inq_ptr->revision, "0001", sizeof(inq_ptr->revision)); 10725 } else { 10726 memset(inq_ptr->revision, ' ', sizeof(inq_ptr->revision)); 10727 strncpy(inq_ptr->revision, val, 10728 min(sizeof(inq_ptr->revision), strlen(val))); 10729 } 10730 10731 /* 10732 * For parallel SCSI, we support double transition and single 10733 * transition clocking. We also support QAS (Quick Arbitration 10734 * and Selection) and Information Unit transfers on both the 10735 * control and array devices. 10736 */ 10737 if (port_type == CTL_PORT_SCSI) 10738 inq_ptr->spi3data = SID_SPI_CLOCK_DT_ST | SID_SPI_QAS | 10739 SID_SPI_IUS; 10740 10741 /* SAM-5 (no version claimed) */ 10742 scsi_ulto2b(0x00A0, inq_ptr->version1); 10743 /* SPC-4 (no version claimed) */ 10744 scsi_ulto2b(0x0460, inq_ptr->version2); 10745 if (port_type == CTL_PORT_FC) { 10746 /* FCP-2 ANSI INCITS.350:2003 */ 10747 scsi_ulto2b(0x0917, inq_ptr->version3); 10748 } else if (port_type == CTL_PORT_SCSI) { 10749 /* SPI-4 ANSI INCITS.362:200x */ 10750 scsi_ulto2b(0x0B56, inq_ptr->version3); 10751 } else if (port_type == CTL_PORT_ISCSI) { 10752 /* iSCSI (no version claimed) */ 10753 scsi_ulto2b(0x0960, inq_ptr->version3); 10754 } else if (port_type == CTL_PORT_SAS) { 10755 /* SAS (no version claimed) */ 10756 scsi_ulto2b(0x0BE0, inq_ptr->version3); 10757 } 10758 10759 if (lun == NULL) { 10760 /* SBC-4 (no version claimed) */ 10761 scsi_ulto2b(0x0600, inq_ptr->version4); 10762 } else { 10763 switch (lun->be_lun->lun_type) { 10764 case T_DIRECT: 10765 /* SBC-4 (no version claimed) */ 10766 scsi_ulto2b(0x0600, inq_ptr->version4); 10767 break; 10768 case T_PROCESSOR: 10769 default: 10770 break; 10771 } 10772 } 10773 10774 ctl_set_success(ctsio); 10775 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10776 ctsio->be_move_done = ctl_config_move_done; 10777 ctl_datamove((union ctl_io *)ctsio); 10778 return (CTL_RETVAL_COMPLETE); 10779} 10780 10781int 10782ctl_inquiry(struct ctl_scsiio *ctsio) 10783{ 10784 struct scsi_inquiry *cdb; 10785 int retval; 10786 10787 CTL_DEBUG_PRINT(("ctl_inquiry\n")); 10788 10789 cdb = (struct scsi_inquiry *)ctsio->cdb; 10790 if (cdb->byte2 & SI_EVPD) 10791 retval = ctl_inquiry_evpd(ctsio); 10792 else if (cdb->page_code == 0) 10793 retval = ctl_inquiry_std(ctsio); 10794 else { 10795 ctl_set_invalid_field(ctsio, 10796 /*sks_valid*/ 1, 10797 /*command*/ 1, 10798 /*field*/ 2, 10799 /*bit_valid*/ 0, 10800 /*bit*/ 0); 10801 ctl_done((union ctl_io *)ctsio); 10802 return (CTL_RETVAL_COMPLETE); 10803 } 10804 10805 return (retval); 10806} 10807 10808/* 10809 * For known CDB types, parse the LBA and length. 10810 */ 10811static int 10812ctl_get_lba_len(union ctl_io *io, uint64_t *lba, uint64_t *len) 10813{ 10814 if (io->io_hdr.io_type != CTL_IO_SCSI) 10815 return (1); 10816 10817 switch (io->scsiio.cdb[0]) { 10818 case COMPARE_AND_WRITE: { 10819 struct scsi_compare_and_write *cdb; 10820 10821 cdb = (struct scsi_compare_and_write *)io->scsiio.cdb; 10822 10823 *lba = scsi_8btou64(cdb->addr); 10824 *len = cdb->length; 10825 break; 10826 } 10827 case READ_6: 10828 case WRITE_6: { 10829 struct scsi_rw_6 *cdb; 10830 10831 cdb = (struct scsi_rw_6 *)io->scsiio.cdb; 10832 10833 *lba = scsi_3btoul(cdb->addr); 10834 /* only 5 bits are valid in the most significant address byte */ 10835 *lba &= 0x1fffff; 10836 *len = cdb->length; 10837 break; 10838 } 10839 case READ_10: 10840 case WRITE_10: { 10841 struct scsi_rw_10 *cdb; 10842 10843 cdb = (struct scsi_rw_10 *)io->scsiio.cdb; 10844 10845 *lba = scsi_4btoul(cdb->addr); 10846 *len = scsi_2btoul(cdb->length); 10847 break; 10848 } 10849 case WRITE_VERIFY_10: { 10850 struct scsi_write_verify_10 *cdb; 10851 10852 cdb = (struct scsi_write_verify_10 *)io->scsiio.cdb; 10853 10854 *lba = scsi_4btoul(cdb->addr); 10855 *len = scsi_2btoul(cdb->length); 10856 break; 10857 } 10858 case READ_12: 10859 case WRITE_12: { 10860 struct scsi_rw_12 *cdb; 10861 10862 cdb = (struct scsi_rw_12 *)io->scsiio.cdb; 10863 10864 *lba = scsi_4btoul(cdb->addr); 10865 *len = scsi_4btoul(cdb->length); 10866 break; 10867 } 10868 case WRITE_VERIFY_12: { 10869 struct scsi_write_verify_12 *cdb; 10870 10871 cdb = (struct scsi_write_verify_12 *)io->scsiio.cdb; 10872 10873 *lba = scsi_4btoul(cdb->addr); 10874 *len = scsi_4btoul(cdb->length); 10875 break; 10876 } 10877 case READ_16: 10878 case WRITE_16: 10879 case WRITE_ATOMIC_16: { 10880 struct scsi_rw_16 *cdb; 10881 10882 cdb = (struct scsi_rw_16 *)io->scsiio.cdb; 10883 10884 *lba = scsi_8btou64(cdb->addr); 10885 *len = scsi_4btoul(cdb->length); 10886 break; 10887 } 10888 case WRITE_VERIFY_16: { 10889 struct scsi_write_verify_16 *cdb; 10890 10891 cdb = (struct scsi_write_verify_16 *)io->scsiio.cdb; 10892 10893 *lba = scsi_8btou64(cdb->addr); 10894 *len = scsi_4btoul(cdb->length); 10895 break; 10896 } 10897 case WRITE_SAME_10: { 10898 struct scsi_write_same_10 *cdb; 10899 10900 cdb = (struct scsi_write_same_10 *)io->scsiio.cdb; 10901 10902 *lba = scsi_4btoul(cdb->addr); 10903 *len = scsi_2btoul(cdb->length); 10904 break; 10905 } 10906 case WRITE_SAME_16: { 10907 struct scsi_write_same_16 *cdb; 10908 10909 cdb = (struct scsi_write_same_16 *)io->scsiio.cdb; 10910 10911 *lba = scsi_8btou64(cdb->addr); 10912 *len = scsi_4btoul(cdb->length); 10913 break; 10914 } 10915 case VERIFY_10: { 10916 struct scsi_verify_10 *cdb; 10917 10918 cdb = (struct scsi_verify_10 *)io->scsiio.cdb; 10919 10920 *lba = scsi_4btoul(cdb->addr); 10921 *len = scsi_2btoul(cdb->length); 10922 break; 10923 } 10924 case VERIFY_12: { 10925 struct scsi_verify_12 *cdb; 10926 10927 cdb = (struct scsi_verify_12 *)io->scsiio.cdb; 10928 10929 *lba = scsi_4btoul(cdb->addr); 10930 *len = scsi_4btoul(cdb->length); 10931 break; 10932 } 10933 case VERIFY_16: { 10934 struct scsi_verify_16 *cdb; 10935 10936 cdb = (struct scsi_verify_16 *)io->scsiio.cdb; 10937 10938 *lba = scsi_8btou64(cdb->addr); 10939 *len = scsi_4btoul(cdb->length); 10940 break; 10941 } 10942 case UNMAP: { 10943 *lba = 0; 10944 *len = UINT64_MAX; 10945 break; 10946 } 10947 case SERVICE_ACTION_IN: { /* GET LBA STATUS */ 10948 struct scsi_get_lba_status *cdb; 10949 10950 cdb = (struct scsi_get_lba_status *)io->scsiio.cdb; 10951 *lba = scsi_8btou64(cdb->addr); 10952 *len = UINT32_MAX; 10953 break; 10954 } 10955 default: 10956 return (1); 10957 break; /* NOTREACHED */ 10958 } 10959 10960 return (0); 10961} 10962 10963static ctl_action 10964ctl_extent_check_lba(uint64_t lba1, uint64_t len1, uint64_t lba2, uint64_t len2, 10965 bool seq) 10966{ 10967 uint64_t endlba1, endlba2; 10968 10969 endlba1 = lba1 + len1 - (seq ? 0 : 1); 10970 endlba2 = lba2 + len2 - 1; 10971 10972 if ((endlba1 < lba2) || (endlba2 < lba1)) 10973 return (CTL_ACTION_PASS); 10974 else 10975 return (CTL_ACTION_BLOCK); 10976} 10977 10978static int 10979ctl_extent_check_unmap(union ctl_io *io, uint64_t lba2, uint64_t len2) 10980{ 10981 struct ctl_ptr_len_flags *ptrlen; 10982 struct scsi_unmap_desc *buf, *end, *range; 10983 uint64_t lba; 10984 uint32_t len; 10985 10986 /* If not UNMAP -- go other way. */ 10987 if (io->io_hdr.io_type != CTL_IO_SCSI || 10988 io->scsiio.cdb[0] != UNMAP) 10989 return (CTL_ACTION_ERROR); 10990 10991 /* If UNMAP without data -- block and wait for data. */ 10992 ptrlen = (struct ctl_ptr_len_flags *) 10993 &io->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 10994 if ((io->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0 || 10995 ptrlen->ptr == NULL) 10996 return (CTL_ACTION_BLOCK); 10997 10998 /* UNMAP with data -- check for collision. */ 10999 buf = (struct scsi_unmap_desc *)ptrlen->ptr; 11000 end = buf + ptrlen->len / sizeof(*buf); 11001 for (range = buf; range < end; range++) { 11002 lba = scsi_8btou64(range->lba); 11003 len = scsi_4btoul(range->length); 11004 if ((lba < lba2 + len2) && (lba + len > lba2)) 11005 return (CTL_ACTION_BLOCK); 11006 } 11007 return (CTL_ACTION_PASS); 11008} 11009 11010static ctl_action 11011ctl_extent_check(union ctl_io *io1, union ctl_io *io2, bool seq) 11012{ 11013 uint64_t lba1, lba2; 11014 uint64_t len1, len2; 11015 int retval; 11016 11017 if (ctl_get_lba_len(io2, &lba2, &len2) != 0) 11018 return (CTL_ACTION_ERROR); 11019 11020 retval = ctl_extent_check_unmap(io1, lba2, len2); 11021 if (retval != CTL_ACTION_ERROR) 11022 return (retval); 11023 11024 if (ctl_get_lba_len(io1, &lba1, &len1) != 0) 11025 return (CTL_ACTION_ERROR); 11026 11027 return (ctl_extent_check_lba(lba1, len1, lba2, len2, seq)); 11028} 11029 11030static ctl_action 11031ctl_extent_check_seq(union ctl_io *io1, union ctl_io *io2) 11032{ 11033 uint64_t lba1, lba2; 11034 uint64_t len1, len2; 11035 11036 if (ctl_get_lba_len(io1, &lba1, &len1) != 0) 11037 return (CTL_ACTION_ERROR); 11038 if (ctl_get_lba_len(io2, &lba2, &len2) != 0) 11039 return (CTL_ACTION_ERROR); 11040 11041 if (lba1 + len1 == lba2) 11042 return (CTL_ACTION_BLOCK); 11043 return (CTL_ACTION_PASS); 11044} 11045 11046static ctl_action 11047ctl_check_for_blockage(struct ctl_lun *lun, union ctl_io *pending_io, 11048 union ctl_io *ooa_io) 11049{ 11050 const struct ctl_cmd_entry *pending_entry, *ooa_entry; 11051 ctl_serialize_action *serialize_row; 11052 11053 /* 11054 * The initiator attempted multiple untagged commands at the same 11055 * time. Can't do that. 11056 */ 11057 if ((pending_io->scsiio.tag_type == CTL_TAG_UNTAGGED) 11058 && (ooa_io->scsiio.tag_type == CTL_TAG_UNTAGGED) 11059 && ((pending_io->io_hdr.nexus.targ_port == 11060 ooa_io->io_hdr.nexus.targ_port) 11061 && (pending_io->io_hdr.nexus.initid.id == 11062 ooa_io->io_hdr.nexus.initid.id)) 11063 && ((ooa_io->io_hdr.flags & (CTL_FLAG_ABORT | 11064 CTL_FLAG_STATUS_SENT)) == 0)) 11065 return (CTL_ACTION_OVERLAP); 11066 11067 /* 11068 * The initiator attempted to send multiple tagged commands with 11069 * the same ID. (It's fine if different initiators have the same 11070 * tag ID.) 11071 * 11072 * Even if all of those conditions are true, we don't kill the I/O 11073 * if the command ahead of us has been aborted. We won't end up 11074 * sending it to the FETD, and it's perfectly legal to resend a 11075 * command with the same tag number as long as the previous 11076 * instance of this tag number has been aborted somehow. 11077 */ 11078 if ((pending_io->scsiio.tag_type != CTL_TAG_UNTAGGED) 11079 && (ooa_io->scsiio.tag_type != CTL_TAG_UNTAGGED) 11080 && (pending_io->scsiio.tag_num == ooa_io->scsiio.tag_num) 11081 && ((pending_io->io_hdr.nexus.targ_port == 11082 ooa_io->io_hdr.nexus.targ_port) 11083 && (pending_io->io_hdr.nexus.initid.id == 11084 ooa_io->io_hdr.nexus.initid.id)) 11085 && ((ooa_io->io_hdr.flags & (CTL_FLAG_ABORT | 11086 CTL_FLAG_STATUS_SENT)) == 0)) 11087 return (CTL_ACTION_OVERLAP_TAG); 11088 11089 /* 11090 * If we get a head of queue tag, SAM-3 says that we should 11091 * immediately execute it. 11092 * 11093 * What happens if this command would normally block for some other 11094 * reason? e.g. a request sense with a head of queue tag 11095 * immediately after a write. Normally that would block, but this 11096 * will result in its getting executed immediately... 11097 * 11098 * We currently return "pass" instead of "skip", so we'll end up 11099 * going through the rest of the queue to check for overlapped tags. 11100 * 11101 * XXX KDM check for other types of blockage first?? 11102 */ 11103 if (pending_io->scsiio.tag_type == CTL_TAG_HEAD_OF_QUEUE) 11104 return (CTL_ACTION_PASS); 11105 11106 /* 11107 * Ordered tags have to block until all items ahead of them 11108 * have completed. If we get called with an ordered tag, we always 11109 * block, if something else is ahead of us in the queue. 11110 */ 11111 if (pending_io->scsiio.tag_type == CTL_TAG_ORDERED) 11112 return (CTL_ACTION_BLOCK); 11113 11114 /* 11115 * Simple tags get blocked until all head of queue and ordered tags 11116 * ahead of them have completed. I'm lumping untagged commands in 11117 * with simple tags here. XXX KDM is that the right thing to do? 11118 */ 11119 if (((pending_io->scsiio.tag_type == CTL_TAG_UNTAGGED) 11120 || (pending_io->scsiio.tag_type == CTL_TAG_SIMPLE)) 11121 && ((ooa_io->scsiio.tag_type == CTL_TAG_HEAD_OF_QUEUE) 11122 || (ooa_io->scsiio.tag_type == CTL_TAG_ORDERED))) 11123 return (CTL_ACTION_BLOCK); 11124 11125 pending_entry = ctl_get_cmd_entry(&pending_io->scsiio, NULL); 11126 ooa_entry = ctl_get_cmd_entry(&ooa_io->scsiio, NULL); 11127 11128 serialize_row = ctl_serialize_table[ooa_entry->seridx]; 11129 11130 switch (serialize_row[pending_entry->seridx]) { 11131 case CTL_SER_BLOCK: 11132 return (CTL_ACTION_BLOCK); 11133 case CTL_SER_EXTENT: 11134 return (ctl_extent_check(ooa_io, pending_io, 11135 (lun->serseq == CTL_LUN_SERSEQ_ON))); 11136 case CTL_SER_EXTENTOPT: 11137 if ((lun->mode_pages.control_page[CTL_PAGE_CURRENT].queue_flags 11138 & SCP_QUEUE_ALG_MASK) != SCP_QUEUE_ALG_UNRESTRICTED) 11139 return (ctl_extent_check(ooa_io, pending_io, 11140 (lun->serseq == CTL_LUN_SERSEQ_ON))); 11141 return (CTL_ACTION_PASS); 11142 case CTL_SER_EXTENTSEQ: 11143 if (lun->serseq != CTL_LUN_SERSEQ_OFF) 11144 return (ctl_extent_check_seq(ooa_io, pending_io)); 11145 return (CTL_ACTION_PASS); 11146 case CTL_SER_PASS: 11147 return (CTL_ACTION_PASS); 11148 case CTL_SER_BLOCKOPT: 11149 if ((lun->mode_pages.control_page[CTL_PAGE_CURRENT].queue_flags 11150 & SCP_QUEUE_ALG_MASK) != SCP_QUEUE_ALG_UNRESTRICTED) 11151 return (CTL_ACTION_BLOCK); 11152 return (CTL_ACTION_PASS); 11153 case CTL_SER_SKIP: 11154 return (CTL_ACTION_SKIP); 11155 default: 11156 panic("invalid serialization value %d", 11157 serialize_row[pending_entry->seridx]); 11158 } 11159 11160 return (CTL_ACTION_ERROR); 11161} 11162 11163/* 11164 * Check for blockage or overlaps against the OOA (Order Of Arrival) queue. 11165 * Assumptions: 11166 * - pending_io is generally either incoming, or on the blocked queue 11167 * - starting I/O is the I/O we want to start the check with. 11168 */ 11169static ctl_action 11170ctl_check_ooa(struct ctl_lun *lun, union ctl_io *pending_io, 11171 union ctl_io *starting_io) 11172{ 11173 union ctl_io *ooa_io; 11174 ctl_action action; 11175 11176 mtx_assert(&lun->lun_lock, MA_OWNED); 11177 11178 /* 11179 * Run back along the OOA queue, starting with the current 11180 * blocked I/O and going through every I/O before it on the 11181 * queue. If starting_io is NULL, we'll just end up returning 11182 * CTL_ACTION_PASS. 11183 */ 11184 for (ooa_io = starting_io; ooa_io != NULL; 11185 ooa_io = (union ctl_io *)TAILQ_PREV(&ooa_io->io_hdr, ctl_ooaq, 11186 ooa_links)){ 11187 11188 /* 11189 * This routine just checks to see whether 11190 * cur_blocked is blocked by ooa_io, which is ahead 11191 * of it in the queue. It doesn't queue/dequeue 11192 * cur_blocked. 11193 */ 11194 action = ctl_check_for_blockage(lun, pending_io, ooa_io); 11195 switch (action) { 11196 case CTL_ACTION_BLOCK: 11197 case CTL_ACTION_OVERLAP: 11198 case CTL_ACTION_OVERLAP_TAG: 11199 case CTL_ACTION_SKIP: 11200 case CTL_ACTION_ERROR: 11201 return (action); 11202 break; /* NOTREACHED */ 11203 case CTL_ACTION_PASS: 11204 break; 11205 default: 11206 panic("invalid action %d", action); 11207 break; /* NOTREACHED */ 11208 } 11209 } 11210 11211 return (CTL_ACTION_PASS); 11212} 11213 11214/* 11215 * Assumptions: 11216 * - An I/O has just completed, and has been removed from the per-LUN OOA 11217 * queue, so some items on the blocked queue may now be unblocked. 11218 */ 11219static int 11220ctl_check_blocked(struct ctl_lun *lun) 11221{ 11222 union ctl_io *cur_blocked, *next_blocked; 11223 11224 mtx_assert(&lun->lun_lock, MA_OWNED); 11225 11226 /* 11227 * Run forward from the head of the blocked queue, checking each 11228 * entry against the I/Os prior to it on the OOA queue to see if 11229 * there is still any blockage. 11230 * 11231 * We cannot use the TAILQ_FOREACH() macro, because it can't deal 11232 * with our removing a variable on it while it is traversing the 11233 * list. 11234 */ 11235 for (cur_blocked = (union ctl_io *)TAILQ_FIRST(&lun->blocked_queue); 11236 cur_blocked != NULL; cur_blocked = next_blocked) { 11237 union ctl_io *prev_ooa; 11238 ctl_action action; 11239 11240 next_blocked = (union ctl_io *)TAILQ_NEXT(&cur_blocked->io_hdr, 11241 blocked_links); 11242 11243 prev_ooa = (union ctl_io *)TAILQ_PREV(&cur_blocked->io_hdr, 11244 ctl_ooaq, ooa_links); 11245 11246 /* 11247 * If cur_blocked happens to be the first item in the OOA 11248 * queue now, prev_ooa will be NULL, and the action 11249 * returned will just be CTL_ACTION_PASS. 11250 */ 11251 action = ctl_check_ooa(lun, cur_blocked, prev_ooa); 11252 11253 switch (action) { 11254 case CTL_ACTION_BLOCK: 11255 /* Nothing to do here, still blocked */ 11256 break; 11257 case CTL_ACTION_OVERLAP: 11258 case CTL_ACTION_OVERLAP_TAG: 11259 /* 11260 * This shouldn't happen! In theory we've already 11261 * checked this command for overlap... 11262 */ 11263 break; 11264 case CTL_ACTION_PASS: 11265 case CTL_ACTION_SKIP: { 11266 const struct ctl_cmd_entry *entry; 11267 int isc_retval; 11268 11269 /* 11270 * The skip case shouldn't happen, this transaction 11271 * should have never made it onto the blocked queue. 11272 */ 11273 /* 11274 * This I/O is no longer blocked, we can remove it 11275 * from the blocked queue. Since this is a TAILQ 11276 * (doubly linked list), we can do O(1) removals 11277 * from any place on the list. 11278 */ 11279 TAILQ_REMOVE(&lun->blocked_queue, &cur_blocked->io_hdr, 11280 blocked_links); 11281 cur_blocked->io_hdr.flags &= ~CTL_FLAG_BLOCKED; 11282 11283 if (cur_blocked->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC){ 11284 /* 11285 * Need to send IO back to original side to 11286 * run 11287 */ 11288 union ctl_ha_msg msg_info; 11289 11290 msg_info.hdr.original_sc = 11291 cur_blocked->io_hdr.original_sc; 11292 msg_info.hdr.serializing_sc = cur_blocked; 11293 msg_info.hdr.msg_type = CTL_MSG_R2R; 11294 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 11295 &msg_info, sizeof(msg_info), 0)) > 11296 CTL_HA_STATUS_SUCCESS) { 11297 printf("CTL:Check Blocked error from " 11298 "ctl_ha_msg_send %d\n", 11299 isc_retval); 11300 } 11301 break; 11302 } 11303 entry = ctl_get_cmd_entry(&cur_blocked->scsiio, NULL); 11304 11305 /* 11306 * Check this I/O for LUN state changes that may 11307 * have happened while this command was blocked. 11308 * The LUN state may have been changed by a command 11309 * ahead of us in the queue, so we need to re-check 11310 * for any states that can be caused by SCSI 11311 * commands. 11312 */ 11313 if (ctl_scsiio_lun_check(lun, entry, 11314 &cur_blocked->scsiio) == 0) { 11315 cur_blocked->io_hdr.flags |= 11316 CTL_FLAG_IS_WAS_ON_RTR; 11317 ctl_enqueue_rtr(cur_blocked); 11318 } else 11319 ctl_done(cur_blocked); 11320 break; 11321 } 11322 default: 11323 /* 11324 * This probably shouldn't happen -- we shouldn't 11325 * get CTL_ACTION_ERROR, or anything else. 11326 */ 11327 break; 11328 } 11329 } 11330 11331 return (CTL_RETVAL_COMPLETE); 11332} 11333 11334/* 11335 * This routine (with one exception) checks LUN flags that can be set by 11336 * commands ahead of us in the OOA queue. These flags have to be checked 11337 * when a command initially comes in, and when we pull a command off the 11338 * blocked queue and are preparing to execute it. The reason we have to 11339 * check these flags for commands on the blocked queue is that the LUN 11340 * state may have been changed by a command ahead of us while we're on the 11341 * blocked queue. 11342 * 11343 * Ordering is somewhat important with these checks, so please pay 11344 * careful attention to the placement of any new checks. 11345 */ 11346static int 11347ctl_scsiio_lun_check(struct ctl_lun *lun, 11348 const struct ctl_cmd_entry *entry, struct ctl_scsiio *ctsio) 11349{ 11350 struct ctl_softc *softc = lun->ctl_softc; 11351 int retval; 11352 uint32_t residx; 11353 11354 retval = 0; 11355 11356 mtx_assert(&lun->lun_lock, MA_OWNED); 11357 11358 /* 11359 * If this shelf is a secondary shelf controller, we have to reject 11360 * any media access commands. 11361 */ 11362 if ((softc->flags & CTL_FLAG_ACTIVE_SHELF) == 0 && 11363 (entry->flags & CTL_CMD_FLAG_OK_ON_SECONDARY) == 0) { 11364 ctl_set_lun_standby(ctsio); 11365 retval = 1; 11366 goto bailout; 11367 } 11368 11369 if (entry->pattern & CTL_LUN_PAT_WRITE) { 11370 if (lun->flags & CTL_LUN_READONLY) { 11371 ctl_set_sense(ctsio, /*current_error*/ 1, 11372 /*sense_key*/ SSD_KEY_DATA_PROTECT, 11373 /*asc*/ 0x27, /*ascq*/ 0x01, SSD_ELEM_NONE); 11374 retval = 1; 11375 goto bailout; 11376 } 11377 if ((lun->mode_pages.control_page[CTL_PAGE_CURRENT] 11378 .eca_and_aen & SCP_SWP) != 0) { 11379 ctl_set_sense(ctsio, /*current_error*/ 1, 11380 /*sense_key*/ SSD_KEY_DATA_PROTECT, 11381 /*asc*/ 0x27, /*ascq*/ 0x02, SSD_ELEM_NONE); 11382 retval = 1; 11383 goto bailout; 11384 } 11385 } 11386 11387 /* 11388 * Check for a reservation conflict. If this command isn't allowed 11389 * even on reserved LUNs, and if this initiator isn't the one who 11390 * reserved us, reject the command with a reservation conflict. 11391 */ 11392 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 11393 if ((lun->flags & CTL_LUN_RESERVED) 11394 && ((entry->flags & CTL_CMD_FLAG_ALLOW_ON_RESV) == 0)) { 11395 if (lun->res_idx != residx) { 11396 ctl_set_reservation_conflict(ctsio); 11397 retval = 1; 11398 goto bailout; 11399 } 11400 } 11401 11402 if ((lun->flags & CTL_LUN_PR_RESERVED) == 0 || 11403 (entry->flags & CTL_CMD_FLAG_ALLOW_ON_PR_RESV)) { 11404 /* No reservation or command is allowed. */; 11405 } else if ((entry->flags & CTL_CMD_FLAG_ALLOW_ON_PR_WRESV) && 11406 (lun->res_type == SPR_TYPE_WR_EX || 11407 lun->res_type == SPR_TYPE_WR_EX_RO || 11408 lun->res_type == SPR_TYPE_WR_EX_AR)) { 11409 /* The command is allowed for Write Exclusive resv. */; 11410 } else { 11411 /* 11412 * if we aren't registered or it's a res holder type 11413 * reservation and this isn't the res holder then set a 11414 * conflict. 11415 */ 11416 if (ctl_get_prkey(lun, residx) == 0 11417 || (residx != lun->pr_res_idx && lun->res_type < 4)) { 11418 ctl_set_reservation_conflict(ctsio); 11419 retval = 1; 11420 goto bailout; 11421 } 11422 11423 } 11424 11425 if ((lun->flags & CTL_LUN_OFFLINE) 11426 && ((entry->flags & CTL_CMD_FLAG_OK_ON_OFFLINE) == 0)) { 11427 ctl_set_lun_not_ready(ctsio); 11428 retval = 1; 11429 goto bailout; 11430 } 11431 11432 /* 11433 * If the LUN is stopped, see if this particular command is allowed 11434 * for a stopped lun. Otherwise, reject it with 0x04,0x02. 11435 */ 11436 if ((lun->flags & CTL_LUN_STOPPED) 11437 && ((entry->flags & CTL_CMD_FLAG_OK_ON_STOPPED) == 0)) { 11438 /* "Logical unit not ready, initializing cmd. required" */ 11439 ctl_set_lun_stopped(ctsio); 11440 retval = 1; 11441 goto bailout; 11442 } 11443 11444 if ((lun->flags & CTL_LUN_INOPERABLE) 11445 && ((entry->flags & CTL_CMD_FLAG_OK_ON_INOPERABLE) == 0)) { 11446 /* "Medium format corrupted" */ 11447 ctl_set_medium_format_corrupted(ctsio); 11448 retval = 1; 11449 goto bailout; 11450 } 11451 11452bailout: 11453 return (retval); 11454 11455} 11456 11457static void 11458ctl_failover_io(union ctl_io *io, int have_lock) 11459{ 11460 ctl_set_busy(&io->scsiio); 11461 ctl_done(io); 11462} 11463 11464static void 11465ctl_failover(void) 11466{ 11467 struct ctl_lun *lun; 11468 struct ctl_softc *softc; 11469 union ctl_io *next_io, *pending_io; 11470 union ctl_io *io; 11471 int lun_idx; 11472 11473 softc = control_softc; 11474 11475 mtx_lock(&softc->ctl_lock); 11476 /* 11477 * Remove any cmds from the other SC from the rtr queue. These 11478 * will obviously only be for LUNs for which we're the primary. 11479 * We can't send status or get/send data for these commands. 11480 * Since they haven't been executed yet, we can just remove them. 11481 * We'll either abort them or delete them below, depending on 11482 * which HA mode we're in. 11483 */ 11484#ifdef notyet 11485 mtx_lock(&softc->queue_lock); 11486 for (io = (union ctl_io *)STAILQ_FIRST(&softc->rtr_queue); 11487 io != NULL; io = next_io) { 11488 next_io = (union ctl_io *)STAILQ_NEXT(&io->io_hdr, links); 11489 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) 11490 STAILQ_REMOVE(&softc->rtr_queue, &io->io_hdr, 11491 ctl_io_hdr, links); 11492 } 11493 mtx_unlock(&softc->queue_lock); 11494#endif 11495 11496 for (lun_idx=0; lun_idx < softc->num_luns; lun_idx++) { 11497 lun = softc->ctl_luns[lun_idx]; 11498 if (lun==NULL) 11499 continue; 11500 11501 /* 11502 * Processor LUNs are primary on both sides. 11503 * XXX will this always be true? 11504 */ 11505 if (lun->be_lun->lun_type == T_PROCESSOR) 11506 continue; 11507 11508 if ((lun->flags & CTL_LUN_PRIMARY_SC) 11509 && (softc->ha_mode == CTL_HA_MODE_SER_ONLY)) { 11510 printf("FAILOVER: primary lun %d\n", lun_idx); 11511 /* 11512 * Remove all commands from the other SC. First from the 11513 * blocked queue then from the ooa queue. Once we have 11514 * removed them. Call ctl_check_blocked to see if there 11515 * is anything that can run. 11516 */ 11517 for (io = (union ctl_io *)TAILQ_FIRST( 11518 &lun->blocked_queue); io != NULL; io = next_io) { 11519 11520 next_io = (union ctl_io *)TAILQ_NEXT( 11521 &io->io_hdr, blocked_links); 11522 11523 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) { 11524 TAILQ_REMOVE(&lun->blocked_queue, 11525 &io->io_hdr,blocked_links); 11526 io->io_hdr.flags &= ~CTL_FLAG_BLOCKED; 11527 TAILQ_REMOVE(&lun->ooa_queue, 11528 &io->io_hdr, ooa_links); 11529 11530 ctl_free_io(io); 11531 } 11532 } 11533 11534 for (io = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); 11535 io != NULL; io = next_io) { 11536 11537 next_io = (union ctl_io *)TAILQ_NEXT( 11538 &io->io_hdr, ooa_links); 11539 11540 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) { 11541 11542 TAILQ_REMOVE(&lun->ooa_queue, 11543 &io->io_hdr, 11544 ooa_links); 11545 11546 ctl_free_io(io); 11547 } 11548 } 11549 ctl_check_blocked(lun); 11550 } else if ((lun->flags & CTL_LUN_PRIMARY_SC) 11551 && (softc->ha_mode == CTL_HA_MODE_XFER)) { 11552 11553 printf("FAILOVER: primary lun %d\n", lun_idx); 11554 /* 11555 * Abort all commands from the other SC. We can't 11556 * send status back for them now. These should get 11557 * cleaned up when they are completed or come out 11558 * for a datamove operation. 11559 */ 11560 for (io = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); 11561 io != NULL; io = next_io) { 11562 next_io = (union ctl_io *)TAILQ_NEXT( 11563 &io->io_hdr, ooa_links); 11564 11565 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) 11566 io->io_hdr.flags |= CTL_FLAG_ABORT; 11567 } 11568 } else if (((lun->flags & CTL_LUN_PRIMARY_SC) == 0) 11569 && (softc->ha_mode == CTL_HA_MODE_XFER)) { 11570 11571 printf("FAILOVER: secondary lun %d\n", lun_idx); 11572 11573 lun->flags |= CTL_LUN_PRIMARY_SC; 11574 11575 /* 11576 * We send all I/O that was sent to this controller 11577 * and redirected to the other side back with 11578 * busy status, and have the initiator retry it. 11579 * Figuring out how much data has been transferred, 11580 * etc. and picking up where we left off would be 11581 * very tricky. 11582 * 11583 * XXX KDM need to remove I/O from the blocked 11584 * queue as well! 11585 */ 11586 for (pending_io = (union ctl_io *)TAILQ_FIRST( 11587 &lun->ooa_queue); pending_io != NULL; 11588 pending_io = next_io) { 11589 11590 next_io = (union ctl_io *)TAILQ_NEXT( 11591 &pending_io->io_hdr, ooa_links); 11592 11593 pending_io->io_hdr.flags &= 11594 ~CTL_FLAG_SENT_2OTHER_SC; 11595 11596 if (pending_io->io_hdr.flags & 11597 CTL_FLAG_IO_ACTIVE) { 11598 pending_io->io_hdr.flags |= 11599 CTL_FLAG_FAILOVER; 11600 } else { 11601 ctl_set_busy(&pending_io->scsiio); 11602 ctl_done(pending_io); 11603 } 11604 } 11605 11606 ctl_est_ua_all(lun, -1, CTL_UA_ASYM_ACC_CHANGE); 11607 } else if (((lun->flags & CTL_LUN_PRIMARY_SC) == 0) 11608 && (softc->ha_mode == CTL_HA_MODE_SER_ONLY)) { 11609 printf("FAILOVER: secondary lun %d\n", lun_idx); 11610 /* 11611 * if the first io on the OOA is not on the RtR queue 11612 * add it. 11613 */ 11614 lun->flags |= CTL_LUN_PRIMARY_SC; 11615 11616 pending_io = (union ctl_io *)TAILQ_FIRST( 11617 &lun->ooa_queue); 11618 if (pending_io==NULL) { 11619 printf("Nothing on OOA queue\n"); 11620 continue; 11621 } 11622 11623 pending_io->io_hdr.flags &= ~CTL_FLAG_SENT_2OTHER_SC; 11624 if ((pending_io->io_hdr.flags & 11625 CTL_FLAG_IS_WAS_ON_RTR) == 0) { 11626 pending_io->io_hdr.flags |= 11627 CTL_FLAG_IS_WAS_ON_RTR; 11628 ctl_enqueue_rtr(pending_io); 11629 } 11630#if 0 11631 else 11632 { 11633 printf("Tag 0x%04x is running\n", 11634 pending_io->scsiio.tag_num); 11635 } 11636#endif 11637 11638 next_io = (union ctl_io *)TAILQ_NEXT( 11639 &pending_io->io_hdr, ooa_links); 11640 for (pending_io=next_io; pending_io != NULL; 11641 pending_io = next_io) { 11642 pending_io->io_hdr.flags &= 11643 ~CTL_FLAG_SENT_2OTHER_SC; 11644 next_io = (union ctl_io *)TAILQ_NEXT( 11645 &pending_io->io_hdr, ooa_links); 11646 if (pending_io->io_hdr.flags & 11647 CTL_FLAG_IS_WAS_ON_RTR) { 11648#if 0 11649 printf("Tag 0x%04x is running\n", 11650 pending_io->scsiio.tag_num); 11651#endif 11652 continue; 11653 } 11654 11655 switch (ctl_check_ooa(lun, pending_io, 11656 (union ctl_io *)TAILQ_PREV( 11657 &pending_io->io_hdr, ctl_ooaq, 11658 ooa_links))) { 11659 11660 case CTL_ACTION_BLOCK: 11661 TAILQ_INSERT_TAIL(&lun->blocked_queue, 11662 &pending_io->io_hdr, 11663 blocked_links); 11664 pending_io->io_hdr.flags |= 11665 CTL_FLAG_BLOCKED; 11666 break; 11667 case CTL_ACTION_PASS: 11668 case CTL_ACTION_SKIP: 11669 pending_io->io_hdr.flags |= 11670 CTL_FLAG_IS_WAS_ON_RTR; 11671 ctl_enqueue_rtr(pending_io); 11672 break; 11673 case CTL_ACTION_OVERLAP: 11674 ctl_set_overlapped_cmd( 11675 (struct ctl_scsiio *)pending_io); 11676 ctl_done(pending_io); 11677 break; 11678 case CTL_ACTION_OVERLAP_TAG: 11679 ctl_set_overlapped_tag( 11680 (struct ctl_scsiio *)pending_io, 11681 pending_io->scsiio.tag_num & 0xff); 11682 ctl_done(pending_io); 11683 break; 11684 case CTL_ACTION_ERROR: 11685 default: 11686 ctl_set_internal_failure( 11687 (struct ctl_scsiio *)pending_io, 11688 0, // sks_valid 11689 0); //retry count 11690 ctl_done(pending_io); 11691 break; 11692 } 11693 } 11694 11695 ctl_est_ua_all(lun, -1, CTL_UA_ASYM_ACC_CHANGE); 11696 } else { 11697 panic("Unhandled HA mode failover, LUN flags = %#x, " 11698 "ha_mode = #%x", lun->flags, softc->ha_mode); 11699 } 11700 } 11701 ctl_pause_rtr = 0; 11702 mtx_unlock(&softc->ctl_lock); 11703} 11704 11705static void 11706ctl_clear_ua(struct ctl_softc *ctl_softc, uint32_t initidx, 11707 ctl_ua_type ua_type) 11708{ 11709 struct ctl_lun *lun; 11710 ctl_ua_type *pu; 11711 11712 mtx_assert(&ctl_softc->ctl_lock, MA_OWNED); 11713 11714 STAILQ_FOREACH(lun, &ctl_softc->lun_list, links) { 11715 mtx_lock(&lun->lun_lock); 11716 pu = lun->pending_ua[initidx / CTL_MAX_INIT_PER_PORT]; 11717 if (pu != NULL) 11718 pu[initidx % CTL_MAX_INIT_PER_PORT] &= ~ua_type; 11719 mtx_unlock(&lun->lun_lock); 11720 } 11721} 11722 11723static int 11724ctl_scsiio_precheck(struct ctl_softc *softc, struct ctl_scsiio *ctsio) 11725{ 11726 struct ctl_lun *lun; 11727 const struct ctl_cmd_entry *entry; 11728 uint32_t initidx, targ_lun; 11729 int retval; 11730 11731 retval = 0; 11732 11733 lun = NULL; 11734 11735 targ_lun = ctsio->io_hdr.nexus.targ_mapped_lun; 11736 if ((targ_lun < CTL_MAX_LUNS) 11737 && ((lun = softc->ctl_luns[targ_lun]) != NULL)) { 11738 /* 11739 * If the LUN is invalid, pretend that it doesn't exist. 11740 * It will go away as soon as all pending I/O has been 11741 * completed. 11742 */ 11743 mtx_lock(&lun->lun_lock); 11744 if (lun->flags & CTL_LUN_DISABLED) { 11745 mtx_unlock(&lun->lun_lock); 11746 lun = NULL; 11747 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr = NULL; 11748 ctsio->io_hdr.ctl_private[CTL_PRIV_BACKEND_LUN].ptr = NULL; 11749 } else { 11750 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr = lun; 11751 ctsio->io_hdr.ctl_private[CTL_PRIV_BACKEND_LUN].ptr = 11752 lun->be_lun; 11753 if (lun->be_lun->lun_type == T_PROCESSOR) { 11754 ctsio->io_hdr.flags |= CTL_FLAG_CONTROL_DEV; 11755 } 11756 11757 /* 11758 * Every I/O goes into the OOA queue for a 11759 * particular LUN, and stays there until completion. 11760 */ 11761#ifdef CTL_TIME_IO 11762 if (TAILQ_EMPTY(&lun->ooa_queue)) { 11763 lun->idle_time += getsbinuptime() - 11764 lun->last_busy; 11765 } 11766#endif 11767 TAILQ_INSERT_TAIL(&lun->ooa_queue, &ctsio->io_hdr, 11768 ooa_links); 11769 } 11770 } else { 11771 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr = NULL; 11772 ctsio->io_hdr.ctl_private[CTL_PRIV_BACKEND_LUN].ptr = NULL; 11773 } 11774 11775 /* Get command entry and return error if it is unsuppotyed. */ 11776 entry = ctl_validate_command(ctsio); 11777 if (entry == NULL) { 11778 if (lun) 11779 mtx_unlock(&lun->lun_lock); 11780 return (retval); 11781 } 11782 11783 ctsio->io_hdr.flags &= ~CTL_FLAG_DATA_MASK; 11784 ctsio->io_hdr.flags |= entry->flags & CTL_FLAG_DATA_MASK; 11785 11786 /* 11787 * Check to see whether we can send this command to LUNs that don't 11788 * exist. This should pretty much only be the case for inquiry 11789 * and request sense. Further checks, below, really require having 11790 * a LUN, so we can't really check the command anymore. Just put 11791 * it on the rtr queue. 11792 */ 11793 if (lun == NULL) { 11794 if (entry->flags & CTL_CMD_FLAG_OK_ON_ALL_LUNS) { 11795 ctsio->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 11796 ctl_enqueue_rtr((union ctl_io *)ctsio); 11797 return (retval); 11798 } 11799 11800 ctl_set_unsupported_lun(ctsio); 11801 ctl_done((union ctl_io *)ctsio); 11802 CTL_DEBUG_PRINT(("ctl_scsiio_precheck: bailing out due to invalid LUN\n")); 11803 return (retval); 11804 } else { 11805 /* 11806 * Make sure we support this particular command on this LUN. 11807 * e.g., we don't support writes to the control LUN. 11808 */ 11809 if (!ctl_cmd_applicable(lun->be_lun->lun_type, entry)) { 11810 mtx_unlock(&lun->lun_lock); 11811 ctl_set_invalid_opcode(ctsio); 11812 ctl_done((union ctl_io *)ctsio); 11813 return (retval); 11814 } 11815 } 11816 11817 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 11818 11819#ifdef CTL_WITH_CA 11820 /* 11821 * If we've got a request sense, it'll clear the contingent 11822 * allegiance condition. Otherwise, if we have a CA condition for 11823 * this initiator, clear it, because it sent down a command other 11824 * than request sense. 11825 */ 11826 if ((ctsio->cdb[0] != REQUEST_SENSE) 11827 && (ctl_is_set(lun->have_ca, initidx))) 11828 ctl_clear_mask(lun->have_ca, initidx); 11829#endif 11830 11831 /* 11832 * If the command has this flag set, it handles its own unit 11833 * attention reporting, we shouldn't do anything. Otherwise we 11834 * check for any pending unit attentions, and send them back to the 11835 * initiator. We only do this when a command initially comes in, 11836 * not when we pull it off the blocked queue. 11837 * 11838 * According to SAM-3, section 5.3.2, the order that things get 11839 * presented back to the host is basically unit attentions caused 11840 * by some sort of reset event, busy status, reservation conflicts 11841 * or task set full, and finally any other status. 11842 * 11843 * One issue here is that some of the unit attentions we report 11844 * don't fall into the "reset" category (e.g. "reported luns data 11845 * has changed"). So reporting it here, before the reservation 11846 * check, may be technically wrong. I guess the only thing to do 11847 * would be to check for and report the reset events here, and then 11848 * check for the other unit attention types after we check for a 11849 * reservation conflict. 11850 * 11851 * XXX KDM need to fix this 11852 */ 11853 if ((entry->flags & CTL_CMD_FLAG_NO_SENSE) == 0) { 11854 ctl_ua_type ua_type; 11855 scsi_sense_data_type sense_format; 11856 11857 if (lun->flags & CTL_LUN_SENSE_DESC) 11858 sense_format = SSD_TYPE_DESC; 11859 else 11860 sense_format = SSD_TYPE_FIXED; 11861 11862 ua_type = ctl_build_ua(lun, initidx, &ctsio->sense_data, 11863 sense_format); 11864 if (ua_type != CTL_UA_NONE) { 11865 mtx_unlock(&lun->lun_lock); 11866 ctsio->scsi_status = SCSI_STATUS_CHECK_COND; 11867 ctsio->io_hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 11868 ctsio->sense_len = SSD_FULL_SIZE; 11869 ctl_done((union ctl_io *)ctsio); 11870 return (retval); 11871 } 11872 } 11873 11874 11875 if (ctl_scsiio_lun_check(lun, entry, ctsio) != 0) { 11876 mtx_unlock(&lun->lun_lock); 11877 ctl_done((union ctl_io *)ctsio); 11878 return (retval); 11879 } 11880 11881 /* 11882 * XXX CHD this is where we want to send IO to other side if 11883 * this LUN is secondary on this SC. We will need to make a copy 11884 * of the IO and flag the IO on this side as SENT_2OTHER and the flag 11885 * the copy we send as FROM_OTHER. 11886 * We also need to stuff the address of the original IO so we can 11887 * find it easily. Something similar will need be done on the other 11888 * side so when we are done we can find the copy. 11889 */ 11890 if ((lun->flags & CTL_LUN_PRIMARY_SC) == 0) { 11891 union ctl_ha_msg msg_info; 11892 int isc_retval; 11893 11894 ctsio->io_hdr.flags |= CTL_FLAG_SENT_2OTHER_SC; 11895 11896 msg_info.hdr.msg_type = CTL_MSG_SERIALIZE; 11897 msg_info.hdr.original_sc = (union ctl_io *)ctsio; 11898#if 0 11899 printf("1. ctsio %p\n", ctsio); 11900#endif 11901 msg_info.hdr.serializing_sc = NULL; 11902 msg_info.hdr.nexus = ctsio->io_hdr.nexus; 11903 msg_info.scsi.tag_num = ctsio->tag_num; 11904 msg_info.scsi.tag_type = ctsio->tag_type; 11905 memcpy(msg_info.scsi.cdb, ctsio->cdb, CTL_MAX_CDBLEN); 11906 11907 ctsio->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 11908 11909 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 11910 (void *)&msg_info, sizeof(msg_info), 0)) > 11911 CTL_HA_STATUS_SUCCESS) { 11912 printf("CTL:precheck, ctl_ha_msg_send returned %d\n", 11913 isc_retval); 11914 printf("CTL:opcode is %x\n", ctsio->cdb[0]); 11915 } else { 11916#if 0 11917 printf("CTL:Precheck sent msg, opcode is %x\n",opcode); 11918#endif 11919 } 11920 11921 /* 11922 * XXX KDM this I/O is off the incoming queue, but hasn't 11923 * been inserted on any other queue. We may need to come 11924 * up with a holding queue while we wait for serialization 11925 * so that we have an idea of what we're waiting for from 11926 * the other side. 11927 */ 11928 mtx_unlock(&lun->lun_lock); 11929 return (retval); 11930 } 11931 11932 switch (ctl_check_ooa(lun, (union ctl_io *)ctsio, 11933 (union ctl_io *)TAILQ_PREV(&ctsio->io_hdr, 11934 ctl_ooaq, ooa_links))) { 11935 case CTL_ACTION_BLOCK: 11936 ctsio->io_hdr.flags |= CTL_FLAG_BLOCKED; 11937 TAILQ_INSERT_TAIL(&lun->blocked_queue, &ctsio->io_hdr, 11938 blocked_links); 11939 mtx_unlock(&lun->lun_lock); 11940 return (retval); 11941 case CTL_ACTION_PASS: 11942 case CTL_ACTION_SKIP: 11943 ctsio->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 11944 mtx_unlock(&lun->lun_lock); 11945 ctl_enqueue_rtr((union ctl_io *)ctsio); 11946 break; 11947 case CTL_ACTION_OVERLAP: 11948 mtx_unlock(&lun->lun_lock); 11949 ctl_set_overlapped_cmd(ctsio); 11950 ctl_done((union ctl_io *)ctsio); 11951 break; 11952 case CTL_ACTION_OVERLAP_TAG: 11953 mtx_unlock(&lun->lun_lock); 11954 ctl_set_overlapped_tag(ctsio, ctsio->tag_num & 0xff); 11955 ctl_done((union ctl_io *)ctsio); 11956 break; 11957 case CTL_ACTION_ERROR: 11958 default: 11959 mtx_unlock(&lun->lun_lock); 11960 ctl_set_internal_failure(ctsio, 11961 /*sks_valid*/ 0, 11962 /*retry_count*/ 0); 11963 ctl_done((union ctl_io *)ctsio); 11964 break; 11965 } 11966 return (retval); 11967} 11968 11969const struct ctl_cmd_entry * 11970ctl_get_cmd_entry(struct ctl_scsiio *ctsio, int *sa) 11971{ 11972 const struct ctl_cmd_entry *entry; 11973 int service_action; 11974 11975 entry = &ctl_cmd_table[ctsio->cdb[0]]; 11976 if (sa) 11977 *sa = ((entry->flags & CTL_CMD_FLAG_SA5) != 0); 11978 if (entry->flags & CTL_CMD_FLAG_SA5) { 11979 service_action = ctsio->cdb[1] & SERVICE_ACTION_MASK; 11980 entry = &((const struct ctl_cmd_entry *) 11981 entry->execute)[service_action]; 11982 } 11983 return (entry); 11984} 11985 11986const struct ctl_cmd_entry * 11987ctl_validate_command(struct ctl_scsiio *ctsio) 11988{ 11989 const struct ctl_cmd_entry *entry; 11990 int i, sa; 11991 uint8_t diff; 11992 11993 entry = ctl_get_cmd_entry(ctsio, &sa); 11994 if (entry->execute == NULL) { 11995 if (sa) 11996 ctl_set_invalid_field(ctsio, 11997 /*sks_valid*/ 1, 11998 /*command*/ 1, 11999 /*field*/ 1, 12000 /*bit_valid*/ 1, 12001 /*bit*/ 4); 12002 else 12003 ctl_set_invalid_opcode(ctsio); 12004 ctl_done((union ctl_io *)ctsio); 12005 return (NULL); 12006 } 12007 KASSERT(entry->length > 0, 12008 ("Not defined length for command 0x%02x/0x%02x", 12009 ctsio->cdb[0], ctsio->cdb[1])); 12010 for (i = 1; i < entry->length; i++) { 12011 diff = ctsio->cdb[i] & ~entry->usage[i - 1]; 12012 if (diff == 0) 12013 continue; 12014 ctl_set_invalid_field(ctsio, 12015 /*sks_valid*/ 1, 12016 /*command*/ 1, 12017 /*field*/ i, 12018 /*bit_valid*/ 1, 12019 /*bit*/ fls(diff) - 1); 12020 ctl_done((union ctl_io *)ctsio); 12021 return (NULL); 12022 } 12023 return (entry); 12024} 12025 12026static int 12027ctl_cmd_applicable(uint8_t lun_type, const struct ctl_cmd_entry *entry) 12028{ 12029 12030 switch (lun_type) { 12031 case T_PROCESSOR: 12032 if (((entry->flags & CTL_CMD_FLAG_OK_ON_PROC) == 0) && 12033 ((entry->flags & CTL_CMD_FLAG_OK_ON_ALL_LUNS) == 0)) 12034 return (0); 12035 break; 12036 case T_DIRECT: 12037 if (((entry->flags & CTL_CMD_FLAG_OK_ON_SLUN) == 0) && 12038 ((entry->flags & CTL_CMD_FLAG_OK_ON_ALL_LUNS) == 0)) 12039 return (0); 12040 break; 12041 default: 12042 return (0); 12043 } 12044 return (1); 12045} 12046 12047static int 12048ctl_scsiio(struct ctl_scsiio *ctsio) 12049{ 12050 int retval; 12051 const struct ctl_cmd_entry *entry; 12052 12053 retval = CTL_RETVAL_COMPLETE; 12054 12055 CTL_DEBUG_PRINT(("ctl_scsiio cdb[0]=%02X\n", ctsio->cdb[0])); 12056 12057 entry = ctl_get_cmd_entry(ctsio, NULL); 12058 12059 /* 12060 * If this I/O has been aborted, just send it straight to 12061 * ctl_done() without executing it. 12062 */ 12063 if (ctsio->io_hdr.flags & CTL_FLAG_ABORT) { 12064 ctl_done((union ctl_io *)ctsio); 12065 goto bailout; 12066 } 12067 12068 /* 12069 * All the checks should have been handled by ctl_scsiio_precheck(). 12070 * We should be clear now to just execute the I/O. 12071 */ 12072 retval = entry->execute(ctsio); 12073 12074bailout: 12075 return (retval); 12076} 12077 12078/* 12079 * Since we only implement one target right now, a bus reset simply resets 12080 * our single target. 12081 */ 12082static int 12083ctl_bus_reset(struct ctl_softc *softc, union ctl_io *io) 12084{ 12085 return(ctl_target_reset(softc, io, CTL_UA_BUS_RESET)); 12086} 12087 12088static int 12089ctl_target_reset(struct ctl_softc *softc, union ctl_io *io, 12090 ctl_ua_type ua_type) 12091{ 12092 struct ctl_lun *lun; 12093 int retval; 12094 12095 if (!(io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)) { 12096 union ctl_ha_msg msg_info; 12097 12098 io->io_hdr.flags |= CTL_FLAG_SENT_2OTHER_SC; 12099 msg_info.hdr.nexus = io->io_hdr.nexus; 12100 if (ua_type==CTL_UA_TARG_RESET) 12101 msg_info.task.task_action = CTL_TASK_TARGET_RESET; 12102 else 12103 msg_info.task.task_action = CTL_TASK_BUS_RESET; 12104 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 12105 msg_info.hdr.original_sc = NULL; 12106 msg_info.hdr.serializing_sc = NULL; 12107 if (CTL_HA_STATUS_SUCCESS != ctl_ha_msg_send(CTL_HA_CHAN_CTL, 12108 (void *)&msg_info, sizeof(msg_info), 0)) { 12109 } 12110 } 12111 retval = 0; 12112 12113 mtx_lock(&softc->ctl_lock); 12114 STAILQ_FOREACH(lun, &softc->lun_list, links) 12115 retval += ctl_lun_reset(lun, io, ua_type); 12116 mtx_unlock(&softc->ctl_lock); 12117 12118 return (retval); 12119} 12120 12121/* 12122 * The LUN should always be set. The I/O is optional, and is used to 12123 * distinguish between I/Os sent by this initiator, and by other 12124 * initiators. We set unit attention for initiators other than this one. 12125 * SAM-3 is vague on this point. It does say that a unit attention should 12126 * be established for other initiators when a LUN is reset (see section 12127 * 5.7.3), but it doesn't specifically say that the unit attention should 12128 * be established for this particular initiator when a LUN is reset. Here 12129 * is the relevant text, from SAM-3 rev 8: 12130 * 12131 * 5.7.2 When a SCSI initiator port aborts its own tasks 12132 * 12133 * When a SCSI initiator port causes its own task(s) to be aborted, no 12134 * notification that the task(s) have been aborted shall be returned to 12135 * the SCSI initiator port other than the completion response for the 12136 * command or task management function action that caused the task(s) to 12137 * be aborted and notification(s) associated with related effects of the 12138 * action (e.g., a reset unit attention condition). 12139 * 12140 * XXX KDM for now, we're setting unit attention for all initiators. 12141 */ 12142static int 12143ctl_lun_reset(struct ctl_lun *lun, union ctl_io *io, ctl_ua_type ua_type) 12144{ 12145 union ctl_io *xio; 12146#if 0 12147 uint32_t initidx; 12148#endif 12149#ifdef CTL_WITH_CA 12150 int i; 12151#endif 12152 12153 mtx_lock(&lun->lun_lock); 12154 /* 12155 * Run through the OOA queue and abort each I/O. 12156 */ 12157 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 12158 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 12159 xio->io_hdr.flags |= CTL_FLAG_ABORT | CTL_FLAG_ABORT_STATUS; 12160 } 12161 12162 /* 12163 * This version sets unit attention for every 12164 */ 12165#if 0 12166 initidx = ctl_get_initindex(&io->io_hdr.nexus); 12167 ctl_est_ua_all(lun, initidx, ua_type); 12168#else 12169 ctl_est_ua_all(lun, -1, ua_type); 12170#endif 12171 12172 /* 12173 * A reset (any kind, really) clears reservations established with 12174 * RESERVE/RELEASE. It does not clear reservations established 12175 * with PERSISTENT RESERVE OUT, but we don't support that at the 12176 * moment anyway. See SPC-2, section 5.6. SPC-3 doesn't address 12177 * reservations made with the RESERVE/RELEASE commands, because 12178 * those commands are obsolete in SPC-3. 12179 */ 12180 lun->flags &= ~CTL_LUN_RESERVED; 12181 12182#ifdef CTL_WITH_CA 12183 for (i = 0; i < CTL_MAX_INITIATORS; i++) 12184 ctl_clear_mask(lun->have_ca, i); 12185#endif 12186 mtx_unlock(&lun->lun_lock); 12187 12188 return (0); 12189} 12190 12191static void 12192ctl_abort_tasks_lun(struct ctl_lun *lun, uint32_t targ_port, uint32_t init_id, 12193 int other_sc) 12194{ 12195 union ctl_io *xio; 12196 12197 mtx_assert(&lun->lun_lock, MA_OWNED); 12198 12199 /* 12200 * Run through the OOA queue and attempt to find the given I/O. 12201 * The target port, initiator ID, tag type and tag number have to 12202 * match the values that we got from the initiator. If we have an 12203 * untagged command to abort, simply abort the first untagged command 12204 * we come to. We only allow one untagged command at a time of course. 12205 */ 12206 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 12207 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 12208 12209 if ((targ_port == UINT32_MAX || 12210 targ_port == xio->io_hdr.nexus.targ_port) && 12211 (init_id == UINT32_MAX || 12212 init_id == xio->io_hdr.nexus.initid.id)) { 12213 if (targ_port != xio->io_hdr.nexus.targ_port || 12214 init_id != xio->io_hdr.nexus.initid.id) 12215 xio->io_hdr.flags |= CTL_FLAG_ABORT_STATUS; 12216 xio->io_hdr.flags |= CTL_FLAG_ABORT; 12217 if (!other_sc && !(lun->flags & CTL_LUN_PRIMARY_SC)) { 12218 union ctl_ha_msg msg_info; 12219 12220 msg_info.hdr.nexus = xio->io_hdr.nexus; 12221 msg_info.task.task_action = CTL_TASK_ABORT_TASK; 12222 msg_info.task.tag_num = xio->scsiio.tag_num; 12223 msg_info.task.tag_type = xio->scsiio.tag_type; 12224 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 12225 msg_info.hdr.original_sc = NULL; 12226 msg_info.hdr.serializing_sc = NULL; 12227 ctl_ha_msg_send(CTL_HA_CHAN_CTL, 12228 (void *)&msg_info, sizeof(msg_info), 0); 12229 } 12230 } 12231 } 12232} 12233 12234static int 12235ctl_abort_task_set(union ctl_io *io) 12236{ 12237 struct ctl_softc *softc = control_softc; 12238 struct ctl_lun *lun; 12239 uint32_t targ_lun; 12240 12241 /* 12242 * Look up the LUN. 12243 */ 12244 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12245 mtx_lock(&softc->ctl_lock); 12246 if ((targ_lun < CTL_MAX_LUNS) && (softc->ctl_luns[targ_lun] != NULL)) 12247 lun = softc->ctl_luns[targ_lun]; 12248 else { 12249 mtx_unlock(&softc->ctl_lock); 12250 return (1); 12251 } 12252 12253 mtx_lock(&lun->lun_lock); 12254 mtx_unlock(&softc->ctl_lock); 12255 if (io->taskio.task_action == CTL_TASK_ABORT_TASK_SET) { 12256 ctl_abort_tasks_lun(lun, io->io_hdr.nexus.targ_port, 12257 io->io_hdr.nexus.initid.id, 12258 (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) != 0); 12259 } else { /* CTL_TASK_CLEAR_TASK_SET */ 12260 ctl_abort_tasks_lun(lun, UINT32_MAX, UINT32_MAX, 12261 (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) != 0); 12262 } 12263 mtx_unlock(&lun->lun_lock); 12264 return (0); 12265} 12266 12267static int 12268ctl_i_t_nexus_reset(union ctl_io *io) 12269{ 12270 struct ctl_softc *softc = control_softc; 12271 struct ctl_lun *lun; 12272 uint32_t initidx, residx; 12273 12274 initidx = ctl_get_initindex(&io->io_hdr.nexus); 12275 residx = ctl_get_resindex(&io->io_hdr.nexus); 12276 mtx_lock(&softc->ctl_lock); 12277 STAILQ_FOREACH(lun, &softc->lun_list, links) { 12278 mtx_lock(&lun->lun_lock); 12279 ctl_abort_tasks_lun(lun, io->io_hdr.nexus.targ_port, 12280 io->io_hdr.nexus.initid.id, 12281 (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) != 0); 12282#ifdef CTL_WITH_CA 12283 ctl_clear_mask(lun->have_ca, initidx); 12284#endif 12285 if ((lun->flags & CTL_LUN_RESERVED) && (lun->res_idx == residx)) 12286 lun->flags &= ~CTL_LUN_RESERVED; 12287 ctl_est_ua(lun, initidx, CTL_UA_I_T_NEXUS_LOSS); 12288 mtx_unlock(&lun->lun_lock); 12289 } 12290 mtx_unlock(&softc->ctl_lock); 12291 return (0); 12292} 12293 12294static int 12295ctl_abort_task(union ctl_io *io) 12296{ 12297 union ctl_io *xio; 12298 struct ctl_lun *lun; 12299 struct ctl_softc *softc; 12300#if 0 12301 struct sbuf sb; 12302 char printbuf[128]; 12303#endif 12304 int found; 12305 uint32_t targ_lun; 12306 12307 softc = control_softc; 12308 found = 0; 12309 12310 /* 12311 * Look up the LUN. 12312 */ 12313 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12314 mtx_lock(&softc->ctl_lock); 12315 if ((targ_lun < CTL_MAX_LUNS) 12316 && (softc->ctl_luns[targ_lun] != NULL)) 12317 lun = softc->ctl_luns[targ_lun]; 12318 else { 12319 mtx_unlock(&softc->ctl_lock); 12320 return (1); 12321 } 12322 12323#if 0 12324 printf("ctl_abort_task: called for lun %lld, tag %d type %d\n", 12325 lun->lun, io->taskio.tag_num, io->taskio.tag_type); 12326#endif 12327 12328 mtx_lock(&lun->lun_lock); 12329 mtx_unlock(&softc->ctl_lock); 12330 /* 12331 * Run through the OOA queue and attempt to find the given I/O. 12332 * The target port, initiator ID, tag type and tag number have to 12333 * match the values that we got from the initiator. If we have an 12334 * untagged command to abort, simply abort the first untagged command 12335 * we come to. We only allow one untagged command at a time of course. 12336 */ 12337 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 12338 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 12339#if 0 12340 sbuf_new(&sb, printbuf, sizeof(printbuf), SBUF_FIXEDLEN); 12341 12342 sbuf_printf(&sb, "LUN %lld tag %d type %d%s%s%s%s: ", 12343 lun->lun, xio->scsiio.tag_num, 12344 xio->scsiio.tag_type, 12345 (xio->io_hdr.blocked_links.tqe_prev 12346 == NULL) ? "" : " BLOCKED", 12347 (xio->io_hdr.flags & 12348 CTL_FLAG_DMA_INPROG) ? " DMA" : "", 12349 (xio->io_hdr.flags & 12350 CTL_FLAG_ABORT) ? " ABORT" : "", 12351 (xio->io_hdr.flags & 12352 CTL_FLAG_IS_WAS_ON_RTR ? " RTR" : "")); 12353 ctl_scsi_command_string(&xio->scsiio, NULL, &sb); 12354 sbuf_finish(&sb); 12355 printf("%s\n", sbuf_data(&sb)); 12356#endif 12357 12358 if ((xio->io_hdr.nexus.targ_port != io->io_hdr.nexus.targ_port) 12359 || (xio->io_hdr.nexus.initid.id != io->io_hdr.nexus.initid.id) 12360 || (xio->io_hdr.flags & CTL_FLAG_ABORT)) 12361 continue; 12362 12363 /* 12364 * If the abort says that the task is untagged, the 12365 * task in the queue must be untagged. Otherwise, 12366 * we just check to see whether the tag numbers 12367 * match. This is because the QLogic firmware 12368 * doesn't pass back the tag type in an abort 12369 * request. 12370 */ 12371#if 0 12372 if (((xio->scsiio.tag_type == CTL_TAG_UNTAGGED) 12373 && (io->taskio.tag_type == CTL_TAG_UNTAGGED)) 12374 || (xio->scsiio.tag_num == io->taskio.tag_num)) 12375#endif 12376 /* 12377 * XXX KDM we've got problems with FC, because it 12378 * doesn't send down a tag type with aborts. So we 12379 * can only really go by the tag number... 12380 * This may cause problems with parallel SCSI. 12381 * Need to figure that out!! 12382 */ 12383 if (xio->scsiio.tag_num == io->taskio.tag_num) { 12384 xio->io_hdr.flags |= CTL_FLAG_ABORT; 12385 found = 1; 12386 if ((io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) == 0 && 12387 !(lun->flags & CTL_LUN_PRIMARY_SC)) { 12388 union ctl_ha_msg msg_info; 12389 12390 io->io_hdr.flags |= CTL_FLAG_SENT_2OTHER_SC; 12391 msg_info.hdr.nexus = io->io_hdr.nexus; 12392 msg_info.task.task_action = CTL_TASK_ABORT_TASK; 12393 msg_info.task.tag_num = io->taskio.tag_num; 12394 msg_info.task.tag_type = io->taskio.tag_type; 12395 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 12396 msg_info.hdr.original_sc = NULL; 12397 msg_info.hdr.serializing_sc = NULL; 12398#if 0 12399 printf("Sent Abort to other side\n"); 12400#endif 12401 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, 12402 (void *)&msg_info, sizeof(msg_info), 0) != 12403 CTL_HA_STATUS_SUCCESS) { 12404 } 12405 } 12406#if 0 12407 printf("ctl_abort_task: found I/O to abort\n"); 12408#endif 12409 } 12410 } 12411 mtx_unlock(&lun->lun_lock); 12412 12413 if (found == 0) { 12414 /* 12415 * This isn't really an error. It's entirely possible for 12416 * the abort and command completion to cross on the wire. 12417 * This is more of an informative/diagnostic error. 12418 */ 12419#if 0 12420 printf("ctl_abort_task: ABORT sent for nonexistent I/O: " 12421 "%d:%d:%d:%d tag %d type %d\n", 12422 io->io_hdr.nexus.initid.id, 12423 io->io_hdr.nexus.targ_port, 12424 io->io_hdr.nexus.targ_target.id, 12425 io->io_hdr.nexus.targ_lun, io->taskio.tag_num, 12426 io->taskio.tag_type); 12427#endif 12428 } 12429 return (0); 12430} 12431 12432static void 12433ctl_run_task(union ctl_io *io) 12434{ 12435 struct ctl_softc *softc = control_softc; 12436 int retval = 1; 12437 const char *task_desc; 12438 12439 CTL_DEBUG_PRINT(("ctl_run_task\n")); 12440 12441 KASSERT(io->io_hdr.io_type == CTL_IO_TASK, 12442 ("ctl_run_task: Unextected io_type %d\n", 12443 io->io_hdr.io_type)); 12444 12445 task_desc = ctl_scsi_task_string(&io->taskio); 12446 if (task_desc != NULL) { 12447#ifdef NEEDTOPORT 12448 csevent_log(CSC_CTL | CSC_SHELF_SW | 12449 CTL_TASK_REPORT, 12450 csevent_LogType_Trace, 12451 csevent_Severity_Information, 12452 csevent_AlertLevel_Green, 12453 csevent_FRU_Firmware, 12454 csevent_FRU_Unknown, 12455 "CTL: received task: %s",task_desc); 12456#endif 12457 } else { 12458#ifdef NEEDTOPORT 12459 csevent_log(CSC_CTL | CSC_SHELF_SW | 12460 CTL_TASK_REPORT, 12461 csevent_LogType_Trace, 12462 csevent_Severity_Information, 12463 csevent_AlertLevel_Green, 12464 csevent_FRU_Firmware, 12465 csevent_FRU_Unknown, 12466 "CTL: received unknown task " 12467 "type: %d (%#x)", 12468 io->taskio.task_action, 12469 io->taskio.task_action); 12470#endif 12471 } 12472 switch (io->taskio.task_action) { 12473 case CTL_TASK_ABORT_TASK: 12474 retval = ctl_abort_task(io); 12475 break; 12476 case CTL_TASK_ABORT_TASK_SET: 12477 case CTL_TASK_CLEAR_TASK_SET: 12478 retval = ctl_abort_task_set(io); 12479 break; 12480 case CTL_TASK_CLEAR_ACA: 12481 break; 12482 case CTL_TASK_I_T_NEXUS_RESET: 12483 retval = ctl_i_t_nexus_reset(io); 12484 break; 12485 case CTL_TASK_LUN_RESET: { 12486 struct ctl_lun *lun; 12487 uint32_t targ_lun; 12488 12489 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12490 mtx_lock(&softc->ctl_lock); 12491 if ((targ_lun < CTL_MAX_LUNS) 12492 && (softc->ctl_luns[targ_lun] != NULL)) 12493 lun = softc->ctl_luns[targ_lun]; 12494 else { 12495 mtx_unlock(&softc->ctl_lock); 12496 retval = 1; 12497 break; 12498 } 12499 12500 if (!(io->io_hdr.flags & 12501 CTL_FLAG_FROM_OTHER_SC)) { 12502 union ctl_ha_msg msg_info; 12503 12504 io->io_hdr.flags |= 12505 CTL_FLAG_SENT_2OTHER_SC; 12506 msg_info.hdr.msg_type = 12507 CTL_MSG_MANAGE_TASKS; 12508 msg_info.hdr.nexus = io->io_hdr.nexus; 12509 msg_info.task.task_action = 12510 CTL_TASK_LUN_RESET; 12511 msg_info.hdr.original_sc = NULL; 12512 msg_info.hdr.serializing_sc = NULL; 12513 if (CTL_HA_STATUS_SUCCESS != 12514 ctl_ha_msg_send(CTL_HA_CHAN_CTL, 12515 (void *)&msg_info, 12516 sizeof(msg_info), 0)) { 12517 } 12518 } 12519 12520 retval = ctl_lun_reset(lun, io, 12521 CTL_UA_LUN_RESET); 12522 mtx_unlock(&softc->ctl_lock); 12523 break; 12524 } 12525 case CTL_TASK_TARGET_RESET: 12526 retval = ctl_target_reset(softc, io, CTL_UA_TARG_RESET); 12527 break; 12528 case CTL_TASK_BUS_RESET: 12529 retval = ctl_bus_reset(softc, io); 12530 break; 12531 case CTL_TASK_PORT_LOGIN: 12532 break; 12533 case CTL_TASK_PORT_LOGOUT: 12534 break; 12535 default: 12536 printf("ctl_run_task: got unknown task management event %d\n", 12537 io->taskio.task_action); 12538 break; 12539 } 12540 if (retval == 0) 12541 io->io_hdr.status = CTL_SUCCESS; 12542 else 12543 io->io_hdr.status = CTL_ERROR; 12544 ctl_done(io); 12545} 12546 12547/* 12548 * For HA operation. Handle commands that come in from the other 12549 * controller. 12550 */ 12551static void 12552ctl_handle_isc(union ctl_io *io) 12553{ 12554 int free_io; 12555 struct ctl_lun *lun; 12556 struct ctl_softc *softc; 12557 uint32_t targ_lun; 12558 12559 softc = control_softc; 12560 12561 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12562 lun = softc->ctl_luns[targ_lun]; 12563 12564 switch (io->io_hdr.msg_type) { 12565 case CTL_MSG_SERIALIZE: 12566 free_io = ctl_serialize_other_sc_cmd(&io->scsiio); 12567 break; 12568 case CTL_MSG_R2R: { 12569 const struct ctl_cmd_entry *entry; 12570 12571 /* 12572 * This is only used in SER_ONLY mode. 12573 */ 12574 free_io = 0; 12575 entry = ctl_get_cmd_entry(&io->scsiio, NULL); 12576 mtx_lock(&lun->lun_lock); 12577 if (ctl_scsiio_lun_check(lun, 12578 entry, (struct ctl_scsiio *)io) != 0) { 12579 mtx_unlock(&lun->lun_lock); 12580 ctl_done(io); 12581 break; 12582 } 12583 io->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 12584 mtx_unlock(&lun->lun_lock); 12585 ctl_enqueue_rtr(io); 12586 break; 12587 } 12588 case CTL_MSG_FINISH_IO: 12589 if (softc->ha_mode == CTL_HA_MODE_XFER) { 12590 free_io = 0; 12591 ctl_done(io); 12592 } else { 12593 free_io = 1; 12594 mtx_lock(&lun->lun_lock); 12595 TAILQ_REMOVE(&lun->ooa_queue, &io->io_hdr, 12596 ooa_links); 12597 ctl_check_blocked(lun); 12598 mtx_unlock(&lun->lun_lock); 12599 } 12600 break; 12601 case CTL_MSG_PERS_ACTION: 12602 ctl_hndl_per_res_out_on_other_sc( 12603 (union ctl_ha_msg *)&io->presio.pr_msg); 12604 free_io = 1; 12605 break; 12606 case CTL_MSG_BAD_JUJU: 12607 free_io = 0; 12608 ctl_done(io); 12609 break; 12610 case CTL_MSG_DATAMOVE: 12611 /* Only used in XFER mode */ 12612 free_io = 0; 12613 ctl_datamove_remote(io); 12614 break; 12615 case CTL_MSG_DATAMOVE_DONE: 12616 /* Only used in XFER mode */ 12617 free_io = 0; 12618 io->scsiio.be_move_done(io); 12619 break; 12620 default: 12621 free_io = 1; 12622 printf("%s: Invalid message type %d\n", 12623 __func__, io->io_hdr.msg_type); 12624 break; 12625 } 12626 if (free_io) 12627 ctl_free_io(io); 12628 12629} 12630 12631 12632/* 12633 * Returns the match type in the case of a match, or CTL_LUN_PAT_NONE if 12634 * there is no match. 12635 */ 12636static ctl_lun_error_pattern 12637ctl_cmd_pattern_match(struct ctl_scsiio *ctsio, struct ctl_error_desc *desc) 12638{ 12639 const struct ctl_cmd_entry *entry; 12640 ctl_lun_error_pattern filtered_pattern, pattern; 12641 12642 pattern = desc->error_pattern; 12643 12644 /* 12645 * XXX KDM we need more data passed into this function to match a 12646 * custom pattern, and we actually need to implement custom pattern 12647 * matching. 12648 */ 12649 if (pattern & CTL_LUN_PAT_CMD) 12650 return (CTL_LUN_PAT_CMD); 12651 12652 if ((pattern & CTL_LUN_PAT_MASK) == CTL_LUN_PAT_ANY) 12653 return (CTL_LUN_PAT_ANY); 12654 12655 entry = ctl_get_cmd_entry(ctsio, NULL); 12656 12657 filtered_pattern = entry->pattern & pattern; 12658 12659 /* 12660 * If the user requested specific flags in the pattern (e.g. 12661 * CTL_LUN_PAT_RANGE), make sure the command supports all of those 12662 * flags. 12663 * 12664 * If the user did not specify any flags, it doesn't matter whether 12665 * or not the command supports the flags. 12666 */ 12667 if ((filtered_pattern & ~CTL_LUN_PAT_MASK) != 12668 (pattern & ~CTL_LUN_PAT_MASK)) 12669 return (CTL_LUN_PAT_NONE); 12670 12671 /* 12672 * If the user asked for a range check, see if the requested LBA 12673 * range overlaps with this command's LBA range. 12674 */ 12675 if (filtered_pattern & CTL_LUN_PAT_RANGE) { 12676 uint64_t lba1; 12677 uint64_t len1; 12678 ctl_action action; 12679 int retval; 12680 12681 retval = ctl_get_lba_len((union ctl_io *)ctsio, &lba1, &len1); 12682 if (retval != 0) 12683 return (CTL_LUN_PAT_NONE); 12684 12685 action = ctl_extent_check_lba(lba1, len1, desc->lba_range.lba, 12686 desc->lba_range.len, FALSE); 12687 /* 12688 * A "pass" means that the LBA ranges don't overlap, so 12689 * this doesn't match the user's range criteria. 12690 */ 12691 if (action == CTL_ACTION_PASS) 12692 return (CTL_LUN_PAT_NONE); 12693 } 12694 12695 return (filtered_pattern); 12696} 12697 12698static void 12699ctl_inject_error(struct ctl_lun *lun, union ctl_io *io) 12700{ 12701 struct ctl_error_desc *desc, *desc2; 12702 12703 mtx_assert(&lun->lun_lock, MA_OWNED); 12704 12705 STAILQ_FOREACH_SAFE(desc, &lun->error_list, links, desc2) { 12706 ctl_lun_error_pattern pattern; 12707 /* 12708 * Check to see whether this particular command matches 12709 * the pattern in the descriptor. 12710 */ 12711 pattern = ctl_cmd_pattern_match(&io->scsiio, desc); 12712 if ((pattern & CTL_LUN_PAT_MASK) == CTL_LUN_PAT_NONE) 12713 continue; 12714 12715 switch (desc->lun_error & CTL_LUN_INJ_TYPE) { 12716 case CTL_LUN_INJ_ABORTED: 12717 ctl_set_aborted(&io->scsiio); 12718 break; 12719 case CTL_LUN_INJ_MEDIUM_ERR: 12720 ctl_set_medium_error(&io->scsiio); 12721 break; 12722 case CTL_LUN_INJ_UA: 12723 /* 29h/00h POWER ON, RESET, OR BUS DEVICE RESET 12724 * OCCURRED */ 12725 ctl_set_ua(&io->scsiio, 0x29, 0x00); 12726 break; 12727 case CTL_LUN_INJ_CUSTOM: 12728 /* 12729 * We're assuming the user knows what he is doing. 12730 * Just copy the sense information without doing 12731 * checks. 12732 */ 12733 bcopy(&desc->custom_sense, &io->scsiio.sense_data, 12734 MIN(sizeof(desc->custom_sense), 12735 sizeof(io->scsiio.sense_data))); 12736 io->scsiio.scsi_status = SCSI_STATUS_CHECK_COND; 12737 io->scsiio.sense_len = SSD_FULL_SIZE; 12738 io->io_hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 12739 break; 12740 case CTL_LUN_INJ_NONE: 12741 default: 12742 /* 12743 * If this is an error injection type we don't know 12744 * about, clear the continuous flag (if it is set) 12745 * so it will get deleted below. 12746 */ 12747 desc->lun_error &= ~CTL_LUN_INJ_CONTINUOUS; 12748 break; 12749 } 12750 /* 12751 * By default, each error injection action is a one-shot 12752 */ 12753 if (desc->lun_error & CTL_LUN_INJ_CONTINUOUS) 12754 continue; 12755 12756 STAILQ_REMOVE(&lun->error_list, desc, ctl_error_desc, links); 12757 12758 free(desc, M_CTL); 12759 } 12760} 12761 12762#ifdef CTL_IO_DELAY 12763static void 12764ctl_datamove_timer_wakeup(void *arg) 12765{ 12766 union ctl_io *io; 12767 12768 io = (union ctl_io *)arg; 12769 12770 ctl_datamove(io); 12771} 12772#endif /* CTL_IO_DELAY */ 12773 12774void 12775ctl_datamove(union ctl_io *io) 12776{ 12777 void (*fe_datamove)(union ctl_io *io); 12778 12779 mtx_assert(&control_softc->ctl_lock, MA_NOTOWNED); 12780 12781 CTL_DEBUG_PRINT(("ctl_datamove\n")); 12782 12783#ifdef CTL_TIME_IO 12784 if ((time_uptime - io->io_hdr.start_time) > ctl_time_io_secs) { 12785 char str[256]; 12786 char path_str[64]; 12787 struct sbuf sb; 12788 12789 ctl_scsi_path_string(io, path_str, sizeof(path_str)); 12790 sbuf_new(&sb, str, sizeof(str), SBUF_FIXEDLEN); 12791 12792 sbuf_cat(&sb, path_str); 12793 switch (io->io_hdr.io_type) { 12794 case CTL_IO_SCSI: 12795 ctl_scsi_command_string(&io->scsiio, NULL, &sb); 12796 sbuf_printf(&sb, "\n"); 12797 sbuf_cat(&sb, path_str); 12798 sbuf_printf(&sb, "Tag: 0x%04x, type %d\n", 12799 io->scsiio.tag_num, io->scsiio.tag_type); 12800 break; 12801 case CTL_IO_TASK: 12802 sbuf_printf(&sb, "Task I/O type: %d, Tag: 0x%04x, " 12803 "Tag Type: %d\n", io->taskio.task_action, 12804 io->taskio.tag_num, io->taskio.tag_type); 12805 break; 12806 default: 12807 printf("Invalid CTL I/O type %d\n", io->io_hdr.io_type); 12808 panic("Invalid CTL I/O type %d\n", io->io_hdr.io_type); 12809 break; 12810 } 12811 sbuf_cat(&sb, path_str); 12812 sbuf_printf(&sb, "ctl_datamove: %jd seconds\n", 12813 (intmax_t)time_uptime - io->io_hdr.start_time); 12814 sbuf_finish(&sb); 12815 printf("%s", sbuf_data(&sb)); 12816 } 12817#endif /* CTL_TIME_IO */ 12818 12819#ifdef CTL_IO_DELAY 12820 if (io->io_hdr.flags & CTL_FLAG_DELAY_DONE) { 12821 struct ctl_lun *lun; 12822 12823 lun =(struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 12824 12825 io->io_hdr.flags &= ~CTL_FLAG_DELAY_DONE; 12826 } else { 12827 struct ctl_lun *lun; 12828 12829 lun =(struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 12830 if ((lun != NULL) 12831 && (lun->delay_info.datamove_delay > 0)) { 12832 struct callout *callout; 12833 12834 callout = (struct callout *)&io->io_hdr.timer_bytes; 12835 callout_init(callout, /*mpsafe*/ 1); 12836 io->io_hdr.flags |= CTL_FLAG_DELAY_DONE; 12837 callout_reset(callout, 12838 lun->delay_info.datamove_delay * hz, 12839 ctl_datamove_timer_wakeup, io); 12840 if (lun->delay_info.datamove_type == 12841 CTL_DELAY_TYPE_ONESHOT) 12842 lun->delay_info.datamove_delay = 0; 12843 return; 12844 } 12845 } 12846#endif 12847 12848 /* 12849 * This command has been aborted. Set the port status, so we fail 12850 * the data move. 12851 */ 12852 if (io->io_hdr.flags & CTL_FLAG_ABORT) { 12853 printf("ctl_datamove: tag 0x%04x on (%ju:%d:%ju:%d) aborted\n", 12854 io->scsiio.tag_num,(uintmax_t)io->io_hdr.nexus.initid.id, 12855 io->io_hdr.nexus.targ_port, 12856 (uintmax_t)io->io_hdr.nexus.targ_target.id, 12857 io->io_hdr.nexus.targ_lun); 12858 io->io_hdr.port_status = 31337; 12859 /* 12860 * Note that the backend, in this case, will get the 12861 * callback in its context. In other cases it may get 12862 * called in the frontend's interrupt thread context. 12863 */ 12864 io->scsiio.be_move_done(io); 12865 return; 12866 } 12867 12868 /* Don't confuse frontend with zero length data move. */ 12869 if (io->scsiio.kern_data_len == 0) { 12870 io->scsiio.be_move_done(io); 12871 return; 12872 } 12873 12874 /* 12875 * If we're in XFER mode and this I/O is from the other shelf 12876 * controller, we need to send the DMA to the other side to 12877 * actually transfer the data to/from the host. In serialize only 12878 * mode the transfer happens below CTL and ctl_datamove() is only 12879 * called on the machine that originally received the I/O. 12880 */ 12881 if ((control_softc->ha_mode == CTL_HA_MODE_XFER) 12882 && (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)) { 12883 union ctl_ha_msg msg; 12884 uint32_t sg_entries_sent; 12885 int do_sg_copy; 12886 int i; 12887 12888 memset(&msg, 0, sizeof(msg)); 12889 msg.hdr.msg_type = CTL_MSG_DATAMOVE; 12890 msg.hdr.original_sc = io->io_hdr.original_sc; 12891 msg.hdr.serializing_sc = io; 12892 msg.hdr.nexus = io->io_hdr.nexus; 12893 msg.dt.flags = io->io_hdr.flags; 12894 /* 12895 * We convert everything into a S/G list here. We can't 12896 * pass by reference, only by value between controllers. 12897 * So we can't pass a pointer to the S/G list, only as many 12898 * S/G entries as we can fit in here. If it's possible for 12899 * us to get more than CTL_HA_MAX_SG_ENTRIES S/G entries, 12900 * then we need to break this up into multiple transfers. 12901 */ 12902 if (io->scsiio.kern_sg_entries == 0) { 12903 msg.dt.kern_sg_entries = 1; 12904 /* 12905 * If this is in cached memory, flush the cache 12906 * before we send the DMA request to the other 12907 * controller. We want to do this in either the 12908 * read or the write case. The read case is 12909 * straightforward. In the write case, we want to 12910 * make sure nothing is in the local cache that 12911 * could overwrite the DMAed data. 12912 */ 12913 if ((io->io_hdr.flags & CTL_FLAG_NO_DATASYNC) == 0) { 12914 /* 12915 * XXX KDM use bus_dmamap_sync() here. 12916 */ 12917 } 12918 12919 /* 12920 * Convert to a physical address if this is a 12921 * virtual address. 12922 */ 12923 if (io->io_hdr.flags & CTL_FLAG_BUS_ADDR) { 12924 msg.dt.sg_list[0].addr = 12925 io->scsiio.kern_data_ptr; 12926 } else { 12927 /* 12928 * XXX KDM use busdma here! 12929 */ 12930#if 0 12931 msg.dt.sg_list[0].addr = (void *) 12932 vtophys(io->scsiio.kern_data_ptr); 12933#endif 12934 } 12935 12936 msg.dt.sg_list[0].len = io->scsiio.kern_data_len; 12937 do_sg_copy = 0; 12938 } else { 12939 struct ctl_sg_entry *sgl; 12940 12941 do_sg_copy = 1; 12942 msg.dt.kern_sg_entries = io->scsiio.kern_sg_entries; 12943 sgl = (struct ctl_sg_entry *)io->scsiio.kern_data_ptr; 12944 if ((io->io_hdr.flags & CTL_FLAG_NO_DATASYNC) == 0) { 12945 /* 12946 * XXX KDM use bus_dmamap_sync() here. 12947 */ 12948 } 12949 } 12950 12951 msg.dt.kern_data_len = io->scsiio.kern_data_len; 12952 msg.dt.kern_total_len = io->scsiio.kern_total_len; 12953 msg.dt.kern_data_resid = io->scsiio.kern_data_resid; 12954 msg.dt.kern_rel_offset = io->scsiio.kern_rel_offset; 12955 msg.dt.sg_sequence = 0; 12956 12957 /* 12958 * Loop until we've sent all of the S/G entries. On the 12959 * other end, we'll recompose these S/G entries into one 12960 * contiguous list before passing it to the 12961 */ 12962 for (sg_entries_sent = 0; sg_entries_sent < 12963 msg.dt.kern_sg_entries; msg.dt.sg_sequence++) { 12964 msg.dt.cur_sg_entries = MIN((sizeof(msg.dt.sg_list)/ 12965 sizeof(msg.dt.sg_list[0])), 12966 msg.dt.kern_sg_entries - sg_entries_sent); 12967 12968 if (do_sg_copy != 0) { 12969 struct ctl_sg_entry *sgl; 12970 int j; 12971 12972 sgl = (struct ctl_sg_entry *) 12973 io->scsiio.kern_data_ptr; 12974 /* 12975 * If this is in cached memory, flush the cache 12976 * before we send the DMA request to the other 12977 * controller. We want to do this in either 12978 * the * read or the write case. The read 12979 * case is straightforward. In the write 12980 * case, we want to make sure nothing is 12981 * in the local cache that could overwrite 12982 * the DMAed data. 12983 */ 12984 12985 for (i = sg_entries_sent, j = 0; 12986 i < msg.dt.cur_sg_entries; i++, j++) { 12987 if ((io->io_hdr.flags & 12988 CTL_FLAG_NO_DATASYNC) == 0) { 12989 /* 12990 * XXX KDM use bus_dmamap_sync() 12991 */ 12992 } 12993 if ((io->io_hdr.flags & 12994 CTL_FLAG_BUS_ADDR) == 0) { 12995 /* 12996 * XXX KDM use busdma. 12997 */ 12998#if 0 12999 msg.dt.sg_list[j].addr =(void *) 13000 vtophys(sgl[i].addr); 13001#endif 13002 } else { 13003 msg.dt.sg_list[j].addr = 13004 sgl[i].addr; 13005 } 13006 msg.dt.sg_list[j].len = sgl[i].len; 13007 } 13008 } 13009 13010 sg_entries_sent += msg.dt.cur_sg_entries; 13011 if (sg_entries_sent >= msg.dt.kern_sg_entries) 13012 msg.dt.sg_last = 1; 13013 else 13014 msg.dt.sg_last = 0; 13015 13016 /* 13017 * XXX KDM drop and reacquire the lock here? 13018 */ 13019 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, 13020 sizeof(msg), 0) > CTL_HA_STATUS_SUCCESS) { 13021 /* 13022 * XXX do something here. 13023 */ 13024 } 13025 13026 msg.dt.sent_sg_entries = sg_entries_sent; 13027 } 13028 io->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 13029 if (io->io_hdr.flags & CTL_FLAG_FAILOVER) 13030 ctl_failover_io(io, /*have_lock*/ 0); 13031 13032 } else { 13033 13034 /* 13035 * Lookup the fe_datamove() function for this particular 13036 * front end. 13037 */ 13038 fe_datamove = 13039 control_softc->ctl_ports[ctl_port_idx(io->io_hdr.nexus.targ_port)]->fe_datamove; 13040 13041 fe_datamove(io); 13042 } 13043} 13044 13045static void 13046ctl_send_datamove_done(union ctl_io *io, int have_lock) 13047{ 13048 union ctl_ha_msg msg; 13049 int isc_status; 13050 13051 memset(&msg, 0, sizeof(msg)); 13052 13053 msg.hdr.msg_type = CTL_MSG_DATAMOVE_DONE; 13054 msg.hdr.original_sc = io; 13055 msg.hdr.serializing_sc = io->io_hdr.serializing_sc; 13056 msg.hdr.nexus = io->io_hdr.nexus; 13057 msg.hdr.status = io->io_hdr.status; 13058 msg.scsi.tag_num = io->scsiio.tag_num; 13059 msg.scsi.tag_type = io->scsiio.tag_type; 13060 msg.scsi.scsi_status = io->scsiio.scsi_status; 13061 memcpy(&msg.scsi.sense_data, &io->scsiio.sense_data, 13062 sizeof(io->scsiio.sense_data)); 13063 msg.scsi.sense_len = io->scsiio.sense_len; 13064 msg.scsi.sense_residual = io->scsiio.sense_residual; 13065 msg.scsi.fetd_status = io->io_hdr.port_status; 13066 msg.scsi.residual = io->scsiio.residual; 13067 io->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 13068 13069 if (io->io_hdr.flags & CTL_FLAG_FAILOVER) { 13070 ctl_failover_io(io, /*have_lock*/ have_lock); 13071 return; 13072 } 13073 13074 isc_status = ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, sizeof(msg), 0); 13075 if (isc_status > CTL_HA_STATUS_SUCCESS) { 13076 /* XXX do something if this fails */ 13077 } 13078 13079} 13080 13081/* 13082 * The DMA to the remote side is done, now we need to tell the other side 13083 * we're done so it can continue with its data movement. 13084 */ 13085static void 13086ctl_datamove_remote_write_cb(struct ctl_ha_dt_req *rq) 13087{ 13088 union ctl_io *io; 13089 13090 io = rq->context; 13091 13092 if (rq->ret != CTL_HA_STATUS_SUCCESS) { 13093 printf("%s: ISC DMA write failed with error %d", __func__, 13094 rq->ret); 13095 ctl_set_internal_failure(&io->scsiio, 13096 /*sks_valid*/ 1, 13097 /*retry_count*/ rq->ret); 13098 } 13099 13100 ctl_dt_req_free(rq); 13101 13102 /* 13103 * In this case, we had to malloc the memory locally. Free it. 13104 */ 13105 if ((io->io_hdr.flags & CTL_FLAG_AUTO_MIRROR) == 0) { 13106 int i; 13107 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 13108 free(io->io_hdr.local_sglist[i].addr, M_CTL); 13109 } 13110 /* 13111 * The data is in local and remote memory, so now we need to send 13112 * status (good or back) back to the other side. 13113 */ 13114 ctl_send_datamove_done(io, /*have_lock*/ 0); 13115} 13116 13117/* 13118 * We've moved the data from the host/controller into local memory. Now we 13119 * need to push it over to the remote controller's memory. 13120 */ 13121static int 13122ctl_datamove_remote_dm_write_cb(union ctl_io *io) 13123{ 13124 int retval; 13125 13126 retval = 0; 13127 13128 retval = ctl_datamove_remote_xfer(io, CTL_HA_DT_CMD_WRITE, 13129 ctl_datamove_remote_write_cb); 13130 13131 return (retval); 13132} 13133 13134static void 13135ctl_datamove_remote_write(union ctl_io *io) 13136{ 13137 int retval; 13138 void (*fe_datamove)(union ctl_io *io); 13139 13140 /* 13141 * - Get the data from the host/HBA into local memory. 13142 * - DMA memory from the local controller to the remote controller. 13143 * - Send status back to the remote controller. 13144 */ 13145 13146 retval = ctl_datamove_remote_sgl_setup(io); 13147 if (retval != 0) 13148 return; 13149 13150 /* Switch the pointer over so the FETD knows what to do */ 13151 io->scsiio.kern_data_ptr = (uint8_t *)io->io_hdr.local_sglist; 13152 13153 /* 13154 * Use a custom move done callback, since we need to send completion 13155 * back to the other controller, not to the backend on this side. 13156 */ 13157 io->scsiio.be_move_done = ctl_datamove_remote_dm_write_cb; 13158 13159 fe_datamove = control_softc->ctl_ports[ctl_port_idx(io->io_hdr.nexus.targ_port)]->fe_datamove; 13160 13161 fe_datamove(io); 13162 13163 return; 13164 13165} 13166 13167static int 13168ctl_datamove_remote_dm_read_cb(union ctl_io *io) 13169{ 13170#if 0 13171 char str[256]; 13172 char path_str[64]; 13173 struct sbuf sb; 13174#endif 13175 13176 /* 13177 * In this case, we had to malloc the memory locally. Free it. 13178 */ 13179 if ((io->io_hdr.flags & CTL_FLAG_AUTO_MIRROR) == 0) { 13180 int i; 13181 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 13182 free(io->io_hdr.local_sglist[i].addr, M_CTL); 13183 } 13184 13185#if 0 13186 scsi_path_string(io, path_str, sizeof(path_str)); 13187 sbuf_new(&sb, str, sizeof(str), SBUF_FIXEDLEN); 13188 sbuf_cat(&sb, path_str); 13189 scsi_command_string(&io->scsiio, NULL, &sb); 13190 sbuf_printf(&sb, "\n"); 13191 sbuf_cat(&sb, path_str); 13192 sbuf_printf(&sb, "Tag: 0x%04x, type %d\n", 13193 io->scsiio.tag_num, io->scsiio.tag_type); 13194 sbuf_cat(&sb, path_str); 13195 sbuf_printf(&sb, "%s: flags %#x, status %#x\n", __func__, 13196 io->io_hdr.flags, io->io_hdr.status); 13197 sbuf_finish(&sb); 13198 printk("%s", sbuf_data(&sb)); 13199#endif 13200 13201 13202 /* 13203 * The read is done, now we need to send status (good or bad) back 13204 * to the other side. 13205 */ 13206 ctl_send_datamove_done(io, /*have_lock*/ 0); 13207 13208 return (0); 13209} 13210 13211static void 13212ctl_datamove_remote_read_cb(struct ctl_ha_dt_req *rq) 13213{ 13214 union ctl_io *io; 13215 void (*fe_datamove)(union ctl_io *io); 13216 13217 io = rq->context; 13218 13219 if (rq->ret != CTL_HA_STATUS_SUCCESS) { 13220 printf("%s: ISC DMA read failed with error %d", __func__, 13221 rq->ret); 13222 ctl_set_internal_failure(&io->scsiio, 13223 /*sks_valid*/ 1, 13224 /*retry_count*/ rq->ret); 13225 } 13226 13227 ctl_dt_req_free(rq); 13228 13229 /* Switch the pointer over so the FETD knows what to do */ 13230 io->scsiio.kern_data_ptr = (uint8_t *)io->io_hdr.local_sglist; 13231 13232 /* 13233 * Use a custom move done callback, since we need to send completion 13234 * back to the other controller, not to the backend on this side. 13235 */ 13236 io->scsiio.be_move_done = ctl_datamove_remote_dm_read_cb; 13237 13238 /* XXX KDM add checks like the ones in ctl_datamove? */ 13239 13240 fe_datamove = control_softc->ctl_ports[ctl_port_idx(io->io_hdr.nexus.targ_port)]->fe_datamove; 13241 13242 fe_datamove(io); 13243} 13244 13245static int 13246ctl_datamove_remote_sgl_setup(union ctl_io *io) 13247{ 13248 struct ctl_sg_entry *local_sglist, *remote_sglist; 13249 struct ctl_sg_entry *local_dma_sglist, *remote_dma_sglist; 13250 struct ctl_softc *softc; 13251 int retval; 13252 int i; 13253 13254 retval = 0; 13255 softc = control_softc; 13256 13257 local_sglist = io->io_hdr.local_sglist; 13258 local_dma_sglist = io->io_hdr.local_dma_sglist; 13259 remote_sglist = io->io_hdr.remote_sglist; 13260 remote_dma_sglist = io->io_hdr.remote_dma_sglist; 13261 13262 if (io->io_hdr.flags & CTL_FLAG_AUTO_MIRROR) { 13263 for (i = 0; i < io->scsiio.kern_sg_entries; i++) { 13264 local_sglist[i].len = remote_sglist[i].len; 13265 13266 /* 13267 * XXX Detect the situation where the RS-level I/O 13268 * redirector on the other side has already read the 13269 * data off of the AOR RS on this side, and 13270 * transferred it to remote (mirror) memory on the 13271 * other side. Since we already have the data in 13272 * memory here, we just need to use it. 13273 * 13274 * XXX KDM this can probably be removed once we 13275 * get the cache device code in and take the 13276 * current AOR implementation out. 13277 */ 13278#ifdef NEEDTOPORT 13279 if ((remote_sglist[i].addr >= 13280 (void *)vtophys(softc->mirr->addr)) 13281 && (remote_sglist[i].addr < 13282 ((void *)vtophys(softc->mirr->addr) + 13283 CacheMirrorOffset))) { 13284 local_sglist[i].addr = remote_sglist[i].addr - 13285 CacheMirrorOffset; 13286 if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == 13287 CTL_FLAG_DATA_IN) 13288 io->io_hdr.flags |= CTL_FLAG_REDIR_DONE; 13289 } else { 13290 local_sglist[i].addr = remote_sglist[i].addr + 13291 CacheMirrorOffset; 13292 } 13293#endif 13294#if 0 13295 printf("%s: local %p, remote %p, len %d\n", 13296 __func__, local_sglist[i].addr, 13297 remote_sglist[i].addr, local_sglist[i].len); 13298#endif 13299 } 13300 } else { 13301 uint32_t len_to_go; 13302 13303 /* 13304 * In this case, we don't have automatically allocated 13305 * memory for this I/O on this controller. This typically 13306 * happens with internal CTL I/O -- e.g. inquiry, mode 13307 * sense, etc. Anything coming from RAIDCore will have 13308 * a mirror area available. 13309 */ 13310 len_to_go = io->scsiio.kern_data_len; 13311 13312 /* 13313 * Clear the no datasync flag, we have to use malloced 13314 * buffers. 13315 */ 13316 io->io_hdr.flags &= ~CTL_FLAG_NO_DATASYNC; 13317 13318 /* 13319 * The difficult thing here is that the size of the various 13320 * S/G segments may be different than the size from the 13321 * remote controller. That'll make it harder when DMAing 13322 * the data back to the other side. 13323 */ 13324 for (i = 0; (i < sizeof(io->io_hdr.remote_sglist) / 13325 sizeof(io->io_hdr.remote_sglist[0])) && 13326 (len_to_go > 0); i++) { 13327 local_sglist[i].len = MIN(len_to_go, 131072); 13328 CTL_SIZE_8B(local_dma_sglist[i].len, 13329 local_sglist[i].len); 13330 local_sglist[i].addr = 13331 malloc(local_dma_sglist[i].len, M_CTL,M_WAITOK); 13332 13333 local_dma_sglist[i].addr = local_sglist[i].addr; 13334 13335 if (local_sglist[i].addr == NULL) { 13336 int j; 13337 13338 printf("malloc failed for %zd bytes!", 13339 local_dma_sglist[i].len); 13340 for (j = 0; j < i; j++) { 13341 free(local_sglist[j].addr, M_CTL); 13342 } 13343 ctl_set_internal_failure(&io->scsiio, 13344 /*sks_valid*/ 1, 13345 /*retry_count*/ 4857); 13346 retval = 1; 13347 goto bailout_error; 13348 13349 } 13350 /* XXX KDM do we need a sync here? */ 13351 13352 len_to_go -= local_sglist[i].len; 13353 } 13354 /* 13355 * Reset the number of S/G entries accordingly. The 13356 * original number of S/G entries is available in 13357 * rem_sg_entries. 13358 */ 13359 io->scsiio.kern_sg_entries = i; 13360 13361#if 0 13362 printf("%s: kern_sg_entries = %d\n", __func__, 13363 io->scsiio.kern_sg_entries); 13364 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 13365 printf("%s: sg[%d] = %p, %d (DMA: %d)\n", __func__, i, 13366 local_sglist[i].addr, local_sglist[i].len, 13367 local_dma_sglist[i].len); 13368#endif 13369 } 13370 13371 13372 return (retval); 13373 13374bailout_error: 13375 13376 ctl_send_datamove_done(io, /*have_lock*/ 0); 13377 13378 return (retval); 13379} 13380 13381static int 13382ctl_datamove_remote_xfer(union ctl_io *io, unsigned command, 13383 ctl_ha_dt_cb callback) 13384{ 13385 struct ctl_ha_dt_req *rq; 13386 struct ctl_sg_entry *remote_sglist, *local_sglist; 13387 struct ctl_sg_entry *remote_dma_sglist, *local_dma_sglist; 13388 uint32_t local_used, remote_used, total_used; 13389 int retval; 13390 int i, j; 13391 13392 retval = 0; 13393 13394 rq = ctl_dt_req_alloc(); 13395 13396 /* 13397 * If we failed to allocate the request, and if the DMA didn't fail 13398 * anyway, set busy status. This is just a resource allocation 13399 * failure. 13400 */ 13401 if ((rq == NULL) 13402 && ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE)) 13403 ctl_set_busy(&io->scsiio); 13404 13405 if ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE) { 13406 13407 if (rq != NULL) 13408 ctl_dt_req_free(rq); 13409 13410 /* 13411 * The data move failed. We need to return status back 13412 * to the other controller. No point in trying to DMA 13413 * data to the remote controller. 13414 */ 13415 13416 ctl_send_datamove_done(io, /*have_lock*/ 0); 13417 13418 retval = 1; 13419 13420 goto bailout; 13421 } 13422 13423 local_sglist = io->io_hdr.local_sglist; 13424 local_dma_sglist = io->io_hdr.local_dma_sglist; 13425 remote_sglist = io->io_hdr.remote_sglist; 13426 remote_dma_sglist = io->io_hdr.remote_dma_sglist; 13427 local_used = 0; 13428 remote_used = 0; 13429 total_used = 0; 13430 13431 if (io->io_hdr.flags & CTL_FLAG_REDIR_DONE) { 13432 rq->ret = CTL_HA_STATUS_SUCCESS; 13433 rq->context = io; 13434 callback(rq); 13435 goto bailout; 13436 } 13437 13438 /* 13439 * Pull/push the data over the wire from/to the other controller. 13440 * This takes into account the possibility that the local and 13441 * remote sglists may not be identical in terms of the size of 13442 * the elements and the number of elements. 13443 * 13444 * One fundamental assumption here is that the length allocated for 13445 * both the local and remote sglists is identical. Otherwise, we've 13446 * essentially got a coding error of some sort. 13447 */ 13448 for (i = 0, j = 0; total_used < io->scsiio.kern_data_len; ) { 13449 int isc_ret; 13450 uint32_t cur_len, dma_length; 13451 uint8_t *tmp_ptr; 13452 13453 rq->id = CTL_HA_DATA_CTL; 13454 rq->command = command; 13455 rq->context = io; 13456 13457 /* 13458 * Both pointers should be aligned. But it is possible 13459 * that the allocation length is not. They should both 13460 * also have enough slack left over at the end, though, 13461 * to round up to the next 8 byte boundary. 13462 */ 13463 cur_len = MIN(local_sglist[i].len - local_used, 13464 remote_sglist[j].len - remote_used); 13465 13466 /* 13467 * In this case, we have a size issue and need to decrease 13468 * the size, except in the case where we actually have less 13469 * than 8 bytes left. In that case, we need to increase 13470 * the DMA length to get the last bit. 13471 */ 13472 if ((cur_len & 0x7) != 0) { 13473 if (cur_len > 0x7) { 13474 cur_len = cur_len - (cur_len & 0x7); 13475 dma_length = cur_len; 13476 } else { 13477 CTL_SIZE_8B(dma_length, cur_len); 13478 } 13479 13480 } else 13481 dma_length = cur_len; 13482 13483 /* 13484 * If we had to allocate memory for this I/O, instead of using 13485 * the non-cached mirror memory, we'll need to flush the cache 13486 * before trying to DMA to the other controller. 13487 * 13488 * We could end up doing this multiple times for the same 13489 * segment if we have a larger local segment than remote 13490 * segment. That shouldn't be an issue. 13491 */ 13492 if ((io->io_hdr.flags & CTL_FLAG_NO_DATASYNC) == 0) { 13493 /* 13494 * XXX KDM use bus_dmamap_sync() here. 13495 */ 13496 } 13497 13498 rq->size = dma_length; 13499 13500 tmp_ptr = (uint8_t *)local_sglist[i].addr; 13501 tmp_ptr += local_used; 13502 13503 /* Use physical addresses when talking to ISC hardware */ 13504 if ((io->io_hdr.flags & CTL_FLAG_BUS_ADDR) == 0) { 13505 /* XXX KDM use busdma */ 13506#if 0 13507 rq->local = vtophys(tmp_ptr); 13508#endif 13509 } else 13510 rq->local = tmp_ptr; 13511 13512 tmp_ptr = (uint8_t *)remote_sglist[j].addr; 13513 tmp_ptr += remote_used; 13514 rq->remote = tmp_ptr; 13515 13516 rq->callback = NULL; 13517 13518 local_used += cur_len; 13519 if (local_used >= local_sglist[i].len) { 13520 i++; 13521 local_used = 0; 13522 } 13523 13524 remote_used += cur_len; 13525 if (remote_used >= remote_sglist[j].len) { 13526 j++; 13527 remote_used = 0; 13528 } 13529 total_used += cur_len; 13530 13531 if (total_used >= io->scsiio.kern_data_len) 13532 rq->callback = callback; 13533 13534 if ((rq->size & 0x7) != 0) { 13535 printf("%s: warning: size %d is not on 8b boundary\n", 13536 __func__, rq->size); 13537 } 13538 if (((uintptr_t)rq->local & 0x7) != 0) { 13539 printf("%s: warning: local %p not on 8b boundary\n", 13540 __func__, rq->local); 13541 } 13542 if (((uintptr_t)rq->remote & 0x7) != 0) { 13543 printf("%s: warning: remote %p not on 8b boundary\n", 13544 __func__, rq->local); 13545 } 13546#if 0 13547 printf("%s: %s: local %#x remote %#x size %d\n", __func__, 13548 (command == CTL_HA_DT_CMD_WRITE) ? "WRITE" : "READ", 13549 rq->local, rq->remote, rq->size); 13550#endif 13551 13552 isc_ret = ctl_dt_single(rq); 13553 if (isc_ret == CTL_HA_STATUS_WAIT) 13554 continue; 13555 13556 if (isc_ret == CTL_HA_STATUS_DISCONNECT) { 13557 rq->ret = CTL_HA_STATUS_SUCCESS; 13558 } else { 13559 rq->ret = isc_ret; 13560 } 13561 callback(rq); 13562 goto bailout; 13563 } 13564 13565bailout: 13566 return (retval); 13567 13568} 13569 13570static void 13571ctl_datamove_remote_read(union ctl_io *io) 13572{ 13573 int retval; 13574 int i; 13575 13576 /* 13577 * This will send an error to the other controller in the case of a 13578 * failure. 13579 */ 13580 retval = ctl_datamove_remote_sgl_setup(io); 13581 if (retval != 0) 13582 return; 13583 13584 retval = ctl_datamove_remote_xfer(io, CTL_HA_DT_CMD_READ, 13585 ctl_datamove_remote_read_cb); 13586 if ((retval != 0) 13587 && ((io->io_hdr.flags & CTL_FLAG_AUTO_MIRROR) == 0)) { 13588 /* 13589 * Make sure we free memory if there was an error.. The 13590 * ctl_datamove_remote_xfer() function will send the 13591 * datamove done message, or call the callback with an 13592 * error if there is a problem. 13593 */ 13594 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 13595 free(io->io_hdr.local_sglist[i].addr, M_CTL); 13596 } 13597 13598 return; 13599} 13600 13601/* 13602 * Process a datamove request from the other controller. This is used for 13603 * XFER mode only, not SER_ONLY mode. For writes, we DMA into local memory 13604 * first. Once that is complete, the data gets DMAed into the remote 13605 * controller's memory. For reads, we DMA from the remote controller's 13606 * memory into our memory first, and then move it out to the FETD. 13607 */ 13608static void 13609ctl_datamove_remote(union ctl_io *io) 13610{ 13611 struct ctl_softc *softc; 13612 13613 softc = control_softc; 13614 13615 mtx_assert(&softc->ctl_lock, MA_NOTOWNED); 13616 13617 /* 13618 * Note that we look for an aborted I/O here, but don't do some of 13619 * the other checks that ctl_datamove() normally does. 13620 * We don't need to run the datamove delay code, since that should 13621 * have been done if need be on the other controller. 13622 */ 13623 if (io->io_hdr.flags & CTL_FLAG_ABORT) { 13624 printf("%s: tag 0x%04x on (%d:%d:%d:%d) aborted\n", __func__, 13625 io->scsiio.tag_num, io->io_hdr.nexus.initid.id, 13626 io->io_hdr.nexus.targ_port, 13627 io->io_hdr.nexus.targ_target.id, 13628 io->io_hdr.nexus.targ_lun); 13629 io->io_hdr.port_status = 31338; 13630 ctl_send_datamove_done(io, /*have_lock*/ 0); 13631 return; 13632 } 13633 13634 if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_OUT) { 13635 ctl_datamove_remote_write(io); 13636 } else if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_IN){ 13637 ctl_datamove_remote_read(io); 13638 } else { 13639 union ctl_ha_msg msg; 13640 struct scsi_sense_data *sense; 13641 uint8_t sks[3]; 13642 int retry_count; 13643 13644 memset(&msg, 0, sizeof(msg)); 13645 13646 msg.hdr.msg_type = CTL_MSG_BAD_JUJU; 13647 msg.hdr.status = CTL_SCSI_ERROR; 13648 msg.scsi.scsi_status = SCSI_STATUS_CHECK_COND; 13649 13650 retry_count = 4243; 13651 13652 sense = &msg.scsi.sense_data; 13653 sks[0] = SSD_SCS_VALID; 13654 sks[1] = (retry_count >> 8) & 0xff; 13655 sks[2] = retry_count & 0xff; 13656 13657 /* "Internal target failure" */ 13658 scsi_set_sense_data(sense, 13659 /*sense_format*/ SSD_TYPE_NONE, 13660 /*current_error*/ 1, 13661 /*sense_key*/ SSD_KEY_HARDWARE_ERROR, 13662 /*asc*/ 0x44, 13663 /*ascq*/ 0x00, 13664 /*type*/ SSD_ELEM_SKS, 13665 /*size*/ sizeof(sks), 13666 /*data*/ sks, 13667 SSD_ELEM_NONE); 13668 13669 io->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 13670 if (io->io_hdr.flags & CTL_FLAG_FAILOVER) { 13671 ctl_failover_io(io, /*have_lock*/ 1); 13672 return; 13673 } 13674 13675 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, sizeof(msg), 0) > 13676 CTL_HA_STATUS_SUCCESS) { 13677 /* XXX KDM what to do if this fails? */ 13678 } 13679 return; 13680 } 13681 13682} 13683 13684static int 13685ctl_process_done(union ctl_io *io) 13686{ 13687 struct ctl_lun *lun; 13688 struct ctl_softc *softc = control_softc; 13689 void (*fe_done)(union ctl_io *io); 13690 uint32_t targ_port = ctl_port_idx(io->io_hdr.nexus.targ_port); 13691 13692 CTL_DEBUG_PRINT(("ctl_process_done\n")); 13693 13694 fe_done = softc->ctl_ports[targ_port]->fe_done; 13695 13696#ifdef CTL_TIME_IO 13697 if ((time_uptime - io->io_hdr.start_time) > ctl_time_io_secs) { 13698 char str[256]; 13699 char path_str[64]; 13700 struct sbuf sb; 13701 13702 ctl_scsi_path_string(io, path_str, sizeof(path_str)); 13703 sbuf_new(&sb, str, sizeof(str), SBUF_FIXEDLEN); 13704 13705 sbuf_cat(&sb, path_str); 13706 switch (io->io_hdr.io_type) { 13707 case CTL_IO_SCSI: 13708 ctl_scsi_command_string(&io->scsiio, NULL, &sb); 13709 sbuf_printf(&sb, "\n"); 13710 sbuf_cat(&sb, path_str); 13711 sbuf_printf(&sb, "Tag: 0x%04x, type %d\n", 13712 io->scsiio.tag_num, io->scsiio.tag_type); 13713 break; 13714 case CTL_IO_TASK: 13715 sbuf_printf(&sb, "Task I/O type: %d, Tag: 0x%04x, " 13716 "Tag Type: %d\n", io->taskio.task_action, 13717 io->taskio.tag_num, io->taskio.tag_type); 13718 break; 13719 default: 13720 printf("Invalid CTL I/O type %d\n", io->io_hdr.io_type); 13721 panic("Invalid CTL I/O type %d\n", io->io_hdr.io_type); 13722 break; 13723 } 13724 sbuf_cat(&sb, path_str); 13725 sbuf_printf(&sb, "ctl_process_done: %jd seconds\n", 13726 (intmax_t)time_uptime - io->io_hdr.start_time); 13727 sbuf_finish(&sb); 13728 printf("%s", sbuf_data(&sb)); 13729 } 13730#endif /* CTL_TIME_IO */ 13731 13732 switch (io->io_hdr.io_type) { 13733 case CTL_IO_SCSI: 13734 break; 13735 case CTL_IO_TASK: 13736 if (bootverbose || (ctl_debug & CTL_DEBUG_INFO)) 13737 ctl_io_error_print(io, NULL); 13738 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) 13739 ctl_free_io(io); 13740 else 13741 fe_done(io); 13742 return (CTL_RETVAL_COMPLETE); 13743 default: 13744 panic("ctl_process_done: invalid io type %d\n", 13745 io->io_hdr.io_type); 13746 break; /* NOTREACHED */ 13747 } 13748 13749 lun = (struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 13750 if (lun == NULL) { 13751 CTL_DEBUG_PRINT(("NULL LUN for lun %d\n", 13752 io->io_hdr.nexus.targ_mapped_lun)); 13753 goto bailout; 13754 } 13755 13756 mtx_lock(&lun->lun_lock); 13757 13758 /* 13759 * Check to see if we have any errors to inject here. We only 13760 * inject errors for commands that don't already have errors set. 13761 */ 13762 if ((STAILQ_FIRST(&lun->error_list) != NULL) && 13763 ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS) && 13764 ((io->io_hdr.flags & CTL_FLAG_STATUS_SENT) == 0)) 13765 ctl_inject_error(lun, io); 13766 13767 /* 13768 * XXX KDM how do we treat commands that aren't completed 13769 * successfully? 13770 * 13771 * XXX KDM should we also track I/O latency? 13772 */ 13773 if ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS && 13774 io->io_hdr.io_type == CTL_IO_SCSI) { 13775#ifdef CTL_TIME_IO 13776 struct bintime cur_bt; 13777#endif 13778 int type; 13779 13780 if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == 13781 CTL_FLAG_DATA_IN) 13782 type = CTL_STATS_READ; 13783 else if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == 13784 CTL_FLAG_DATA_OUT) 13785 type = CTL_STATS_WRITE; 13786 else 13787 type = CTL_STATS_NO_IO; 13788 13789 lun->stats.ports[targ_port].bytes[type] += 13790 io->scsiio.kern_total_len; 13791 lun->stats.ports[targ_port].operations[type]++; 13792#ifdef CTL_TIME_IO 13793 bintime_add(&lun->stats.ports[targ_port].dma_time[type], 13794 &io->io_hdr.dma_bt); 13795 lun->stats.ports[targ_port].num_dmas[type] += 13796 io->io_hdr.num_dmas; 13797 getbintime(&cur_bt); 13798 bintime_sub(&cur_bt, &io->io_hdr.start_bt); 13799 bintime_add(&lun->stats.ports[targ_port].time[type], &cur_bt); 13800#endif 13801 } 13802 13803 /* 13804 * Remove this from the OOA queue. 13805 */ 13806 TAILQ_REMOVE(&lun->ooa_queue, &io->io_hdr, ooa_links); 13807#ifdef CTL_TIME_IO 13808 if (TAILQ_EMPTY(&lun->ooa_queue)) 13809 lun->last_busy = getsbinuptime(); 13810#endif 13811 13812 /* 13813 * Run through the blocked queue on this LUN and see if anything 13814 * has become unblocked, now that this transaction is done. 13815 */ 13816 ctl_check_blocked(lun); 13817 13818 /* 13819 * If the LUN has been invalidated, free it if there is nothing 13820 * left on its OOA queue. 13821 */ 13822 if ((lun->flags & CTL_LUN_INVALID) 13823 && TAILQ_EMPTY(&lun->ooa_queue)) { 13824 mtx_unlock(&lun->lun_lock); 13825 mtx_lock(&softc->ctl_lock); 13826 ctl_free_lun(lun); 13827 mtx_unlock(&softc->ctl_lock); 13828 } else 13829 mtx_unlock(&lun->lun_lock); 13830 13831bailout: 13832 13833 /* 13834 * If this command has been aborted, make sure we set the status 13835 * properly. The FETD is responsible for freeing the I/O and doing 13836 * whatever it needs to do to clean up its state. 13837 */ 13838 if (io->io_hdr.flags & CTL_FLAG_ABORT) 13839 ctl_set_task_aborted(&io->scsiio); 13840 13841 /* 13842 * If enabled, print command error status. 13843 * We don't print UAs unless debugging was enabled explicitly. 13844 */ 13845 do { 13846 if ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS) 13847 break; 13848 if (!bootverbose && (ctl_debug & CTL_DEBUG_INFO) == 0) 13849 break; 13850 if ((ctl_debug & CTL_DEBUG_INFO) == 0 && 13851 ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_SCSI_ERROR) && 13852 (io->scsiio.scsi_status == SCSI_STATUS_CHECK_COND)) { 13853 int error_code, sense_key, asc, ascq; 13854 13855 scsi_extract_sense_len(&io->scsiio.sense_data, 13856 io->scsiio.sense_len, &error_code, &sense_key, 13857 &asc, &ascq, /*show_errors*/ 0); 13858 if (sense_key == SSD_KEY_UNIT_ATTENTION) 13859 break; 13860 } 13861 13862 ctl_io_error_print(io, NULL); 13863 } while (0); 13864 13865 /* 13866 * Tell the FETD or the other shelf controller we're done with this 13867 * command. Note that only SCSI commands get to this point. Task 13868 * management commands are completed above. 13869 * 13870 * We only send status to the other controller if we're in XFER 13871 * mode. In SER_ONLY mode, the I/O is done on the controller that 13872 * received the I/O (from CTL's perspective), and so the status is 13873 * generated there. 13874 * 13875 * XXX KDM if we hold the lock here, we could cause a deadlock 13876 * if the frontend comes back in in this context to queue 13877 * something. 13878 */ 13879 if ((softc->ha_mode == CTL_HA_MODE_XFER) 13880 && (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)) { 13881 union ctl_ha_msg msg; 13882 13883 memset(&msg, 0, sizeof(msg)); 13884 msg.hdr.msg_type = CTL_MSG_FINISH_IO; 13885 msg.hdr.original_sc = io->io_hdr.original_sc; 13886 msg.hdr.nexus = io->io_hdr.nexus; 13887 msg.hdr.status = io->io_hdr.status; 13888 msg.scsi.scsi_status = io->scsiio.scsi_status; 13889 msg.scsi.tag_num = io->scsiio.tag_num; 13890 msg.scsi.tag_type = io->scsiio.tag_type; 13891 msg.scsi.sense_len = io->scsiio.sense_len; 13892 msg.scsi.sense_residual = io->scsiio.sense_residual; 13893 msg.scsi.residual = io->scsiio.residual; 13894 memcpy(&msg.scsi.sense_data, &io->scsiio.sense_data, 13895 sizeof(io->scsiio.sense_data)); 13896 /* 13897 * We copy this whether or not this is an I/O-related 13898 * command. Otherwise, we'd have to go and check to see 13899 * whether it's a read/write command, and it really isn't 13900 * worth it. 13901 */ 13902 memcpy(&msg.scsi.lbalen, 13903 &io->io_hdr.ctl_private[CTL_PRIV_LBA_LEN].bytes, 13904 sizeof(msg.scsi.lbalen)); 13905 13906 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, 13907 sizeof(msg), 0) > CTL_HA_STATUS_SUCCESS) { 13908 /* XXX do something here */ 13909 } 13910 13911 ctl_free_io(io); 13912 } else 13913 fe_done(io); 13914 13915 return (CTL_RETVAL_COMPLETE); 13916} 13917 13918#ifdef CTL_WITH_CA 13919/* 13920 * Front end should call this if it doesn't do autosense. When the request 13921 * sense comes back in from the initiator, we'll dequeue this and send it. 13922 */ 13923int 13924ctl_queue_sense(union ctl_io *io) 13925{ 13926 struct ctl_lun *lun; 13927 struct ctl_port *port; 13928 struct ctl_softc *softc; 13929 uint32_t initidx, targ_lun; 13930 13931 softc = control_softc; 13932 13933 CTL_DEBUG_PRINT(("ctl_queue_sense\n")); 13934 13935 /* 13936 * LUN lookup will likely move to the ctl_work_thread() once we 13937 * have our new queueing infrastructure (that doesn't put things on 13938 * a per-LUN queue initially). That is so that we can handle 13939 * things like an INQUIRY to a LUN that we don't have enabled. We 13940 * can't deal with that right now. 13941 */ 13942 mtx_lock(&softc->ctl_lock); 13943 13944 /* 13945 * If we don't have a LUN for this, just toss the sense 13946 * information. 13947 */ 13948 port = ctl_io_port(&ctsio->io_hdr); 13949 targ_lun = ctl_lun_map_from_port(port, io->io_hdr.nexus.targ_lun); 13950 if ((targ_lun < CTL_MAX_LUNS) 13951 && (softc->ctl_luns[targ_lun] != NULL)) 13952 lun = softc->ctl_luns[targ_lun]; 13953 else 13954 goto bailout; 13955 13956 initidx = ctl_get_initindex(&io->io_hdr.nexus); 13957 13958 mtx_lock(&lun->lun_lock); 13959 /* 13960 * Already have CA set for this LUN...toss the sense information. 13961 */ 13962 if (ctl_is_set(lun->have_ca, initidx)) { 13963 mtx_unlock(&lun->lun_lock); 13964 goto bailout; 13965 } 13966 13967 memcpy(&lun->pending_sense[initidx], &io->scsiio.sense_data, 13968 MIN(sizeof(lun->pending_sense[initidx]), 13969 sizeof(io->scsiio.sense_data))); 13970 ctl_set_mask(lun->have_ca, initidx); 13971 mtx_unlock(&lun->lun_lock); 13972 13973bailout: 13974 mtx_unlock(&softc->ctl_lock); 13975 13976 ctl_free_io(io); 13977 13978 return (CTL_RETVAL_COMPLETE); 13979} 13980#endif 13981 13982/* 13983 * Primary command inlet from frontend ports. All SCSI and task I/O 13984 * requests must go through this function. 13985 */ 13986int 13987ctl_queue(union ctl_io *io) 13988{ 13989 struct ctl_port *port; 13990 13991 CTL_DEBUG_PRINT(("ctl_queue cdb[0]=%02X\n", io->scsiio.cdb[0])); 13992 13993#ifdef CTL_TIME_IO 13994 io->io_hdr.start_time = time_uptime; 13995 getbintime(&io->io_hdr.start_bt); 13996#endif /* CTL_TIME_IO */ 13997 13998 /* Map FE-specific LUN ID into global one. */ 13999 port = ctl_io_port(&io->io_hdr); 14000 io->io_hdr.nexus.targ_mapped_lun = 14001 ctl_lun_map_from_port(port, io->io_hdr.nexus.targ_lun); 14002 14003 switch (io->io_hdr.io_type) { 14004 case CTL_IO_SCSI: 14005 case CTL_IO_TASK: 14006 if (ctl_debug & CTL_DEBUG_CDB) 14007 ctl_io_print(io); 14008 ctl_enqueue_incoming(io); 14009 break; 14010 default: 14011 printf("ctl_queue: unknown I/O type %d\n", io->io_hdr.io_type); 14012 return (EINVAL); 14013 } 14014 14015 return (CTL_RETVAL_COMPLETE); 14016} 14017 14018#ifdef CTL_IO_DELAY 14019static void 14020ctl_done_timer_wakeup(void *arg) 14021{ 14022 union ctl_io *io; 14023 14024 io = (union ctl_io *)arg; 14025 ctl_done(io); 14026} 14027#endif /* CTL_IO_DELAY */ 14028 14029void 14030ctl_done(union ctl_io *io) 14031{ 14032 14033 /* 14034 * Enable this to catch duplicate completion issues. 14035 */ 14036#if 0 14037 if (io->io_hdr.flags & CTL_FLAG_ALREADY_DONE) { 14038 printf("%s: type %d msg %d cdb %x iptl: " 14039 "%d:%d:%d:%d tag 0x%04x " 14040 "flag %#x status %x\n", 14041 __func__, 14042 io->io_hdr.io_type, 14043 io->io_hdr.msg_type, 14044 io->scsiio.cdb[0], 14045 io->io_hdr.nexus.initid.id, 14046 io->io_hdr.nexus.targ_port, 14047 io->io_hdr.nexus.targ_target.id, 14048 io->io_hdr.nexus.targ_lun, 14049 (io->io_hdr.io_type == 14050 CTL_IO_TASK) ? 14051 io->taskio.tag_num : 14052 io->scsiio.tag_num, 14053 io->io_hdr.flags, 14054 io->io_hdr.status); 14055 } else 14056 io->io_hdr.flags |= CTL_FLAG_ALREADY_DONE; 14057#endif 14058 14059 /* 14060 * This is an internal copy of an I/O, and should not go through 14061 * the normal done processing logic. 14062 */ 14063 if (io->io_hdr.flags & CTL_FLAG_INT_COPY) 14064 return; 14065 14066 /* 14067 * We need to send a msg to the serializing shelf to finish the IO 14068 * as well. We don't send a finish message to the other shelf if 14069 * this is a task management command. Task management commands 14070 * aren't serialized in the OOA queue, but rather just executed on 14071 * both shelf controllers for commands that originated on that 14072 * controller. 14073 */ 14074 if ((io->io_hdr.flags & CTL_FLAG_SENT_2OTHER_SC) 14075 && (io->io_hdr.io_type != CTL_IO_TASK)) { 14076 union ctl_ha_msg msg_io; 14077 14078 msg_io.hdr.msg_type = CTL_MSG_FINISH_IO; 14079 msg_io.hdr.serializing_sc = io->io_hdr.serializing_sc; 14080 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_io, 14081 sizeof(msg_io), 0 ) != CTL_HA_STATUS_SUCCESS) { 14082 } 14083 /* continue on to finish IO */ 14084 } 14085#ifdef CTL_IO_DELAY 14086 if (io->io_hdr.flags & CTL_FLAG_DELAY_DONE) { 14087 struct ctl_lun *lun; 14088 14089 lun =(struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 14090 14091 io->io_hdr.flags &= ~CTL_FLAG_DELAY_DONE; 14092 } else { 14093 struct ctl_lun *lun; 14094 14095 lun =(struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 14096 14097 if ((lun != NULL) 14098 && (lun->delay_info.done_delay > 0)) { 14099 struct callout *callout; 14100 14101 callout = (struct callout *)&io->io_hdr.timer_bytes; 14102 callout_init(callout, /*mpsafe*/ 1); 14103 io->io_hdr.flags |= CTL_FLAG_DELAY_DONE; 14104 callout_reset(callout, 14105 lun->delay_info.done_delay * hz, 14106 ctl_done_timer_wakeup, io); 14107 if (lun->delay_info.done_type == CTL_DELAY_TYPE_ONESHOT) 14108 lun->delay_info.done_delay = 0; 14109 return; 14110 } 14111 } 14112#endif /* CTL_IO_DELAY */ 14113 14114 ctl_enqueue_done(io); 14115} 14116 14117int 14118ctl_isc(struct ctl_scsiio *ctsio) 14119{ 14120 struct ctl_lun *lun; 14121 int retval; 14122 14123 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 14124 14125 CTL_DEBUG_PRINT(("ctl_isc: command: %02x\n", ctsio->cdb[0])); 14126 14127 CTL_DEBUG_PRINT(("ctl_isc: calling data_submit()\n")); 14128 14129 retval = lun->backend->data_submit((union ctl_io *)ctsio); 14130 14131 return (retval); 14132} 14133 14134 14135static void 14136ctl_work_thread(void *arg) 14137{ 14138 struct ctl_thread *thr = (struct ctl_thread *)arg; 14139 struct ctl_softc *softc = thr->ctl_softc; 14140 union ctl_io *io; 14141 int retval; 14142 14143 CTL_DEBUG_PRINT(("ctl_work_thread starting\n")); 14144 14145 for (;;) { 14146 retval = 0; 14147 14148 /* 14149 * We handle the queues in this order: 14150 * - ISC 14151 * - done queue (to free up resources, unblock other commands) 14152 * - RtR queue 14153 * - incoming queue 14154 * 14155 * If those queues are empty, we break out of the loop and 14156 * go to sleep. 14157 */ 14158 mtx_lock(&thr->queue_lock); 14159 io = (union ctl_io *)STAILQ_FIRST(&thr->isc_queue); 14160 if (io != NULL) { 14161 STAILQ_REMOVE_HEAD(&thr->isc_queue, links); 14162 mtx_unlock(&thr->queue_lock); 14163 ctl_handle_isc(io); 14164 continue; 14165 } 14166 io = (union ctl_io *)STAILQ_FIRST(&thr->done_queue); 14167 if (io != NULL) { 14168 STAILQ_REMOVE_HEAD(&thr->done_queue, links); 14169 /* clear any blocked commands, call fe_done */ 14170 mtx_unlock(&thr->queue_lock); 14171 retval = ctl_process_done(io); 14172 continue; 14173 } 14174 io = (union ctl_io *)STAILQ_FIRST(&thr->incoming_queue); 14175 if (io != NULL) { 14176 STAILQ_REMOVE_HEAD(&thr->incoming_queue, links); 14177 mtx_unlock(&thr->queue_lock); 14178 if (io->io_hdr.io_type == CTL_IO_TASK) 14179 ctl_run_task(io); 14180 else 14181 ctl_scsiio_precheck(softc, &io->scsiio); 14182 continue; 14183 } 14184 if (!ctl_pause_rtr) { 14185 io = (union ctl_io *)STAILQ_FIRST(&thr->rtr_queue); 14186 if (io != NULL) { 14187 STAILQ_REMOVE_HEAD(&thr->rtr_queue, links); 14188 mtx_unlock(&thr->queue_lock); 14189 retval = ctl_scsiio(&io->scsiio); 14190 if (retval != CTL_RETVAL_COMPLETE) 14191 CTL_DEBUG_PRINT(("ctl_scsiio failed\n")); 14192 continue; 14193 } 14194 } 14195 14196 /* Sleep until we have something to do. */ 14197 mtx_sleep(thr, &thr->queue_lock, PDROP | PRIBIO, "-", 0); 14198 } 14199} 14200 14201static void 14202ctl_lun_thread(void *arg) 14203{ 14204 struct ctl_softc *softc = (struct ctl_softc *)arg; 14205 struct ctl_be_lun *be_lun; 14206 int retval; 14207 14208 CTL_DEBUG_PRINT(("ctl_lun_thread starting\n")); 14209 14210 for (;;) { 14211 retval = 0; 14212 mtx_lock(&softc->ctl_lock); 14213 be_lun = STAILQ_FIRST(&softc->pending_lun_queue); 14214 if (be_lun != NULL) { 14215 STAILQ_REMOVE_HEAD(&softc->pending_lun_queue, links); 14216 mtx_unlock(&softc->ctl_lock); 14217 ctl_create_lun(be_lun); 14218 continue; 14219 } 14220 14221 /* Sleep until we have something to do. */ 14222 mtx_sleep(&softc->pending_lun_queue, &softc->ctl_lock, 14223 PDROP | PRIBIO, "-", 0); 14224 } 14225} 14226 14227static void 14228ctl_thresh_thread(void *arg) 14229{ 14230 struct ctl_softc *softc = (struct ctl_softc *)arg; 14231 struct ctl_lun *lun; 14232 struct ctl_be_lun *be_lun; 14233 struct scsi_da_rw_recovery_page *rwpage; 14234 struct ctl_logical_block_provisioning_page *page; 14235 const char *attr; 14236 uint64_t thres, val; 14237 int i, e; 14238 14239 CTL_DEBUG_PRINT(("ctl_thresh_thread starting\n")); 14240 14241 for (;;) { 14242 mtx_lock(&softc->ctl_lock); 14243 STAILQ_FOREACH(lun, &softc->lun_list, links) { 14244 be_lun = lun->be_lun; 14245 if ((lun->flags & CTL_LUN_DISABLED) || 14246 (lun->flags & CTL_LUN_OFFLINE) || 14247 lun->backend->lun_attr == NULL) 14248 continue; 14249 rwpage = &lun->mode_pages.rw_er_page[CTL_PAGE_CURRENT]; 14250 if ((rwpage->byte8 & SMS_RWER_LBPERE) == 0) 14251 continue; 14252 e = 0; 14253 page = &lun->mode_pages.lbp_page[CTL_PAGE_CURRENT]; 14254 for (i = 0; i < CTL_NUM_LBP_THRESH; i++) { 14255 if ((page->descr[i].flags & SLBPPD_ENABLED) == 0) 14256 continue; 14257 thres = scsi_4btoul(page->descr[i].count); 14258 thres <<= CTL_LBP_EXPONENT; 14259 switch (page->descr[i].resource) { 14260 case 0x01: 14261 attr = "blocksavail"; 14262 break; 14263 case 0x02: 14264 attr = "blocksused"; 14265 break; 14266 case 0xf1: 14267 attr = "poolblocksavail"; 14268 break; 14269 case 0xf2: 14270 attr = "poolblocksused"; 14271 break; 14272 default: 14273 continue; 14274 } 14275 mtx_unlock(&softc->ctl_lock); // XXX 14276 val = lun->backend->lun_attr( 14277 lun->be_lun->be_lun, attr); 14278 mtx_lock(&softc->ctl_lock); 14279 if (val == UINT64_MAX) 14280 continue; 14281 if ((page->descr[i].flags & SLBPPD_ARMING_MASK) 14282 == SLBPPD_ARMING_INC) 14283 e |= (val >= thres); 14284 else 14285 e |= (val <= thres); 14286 } 14287 mtx_lock(&lun->lun_lock); 14288 if (e) { 14289 if (lun->lasttpt == 0 || 14290 time_uptime - lun->lasttpt >= CTL_LBP_UA_PERIOD) { 14291 lun->lasttpt = time_uptime; 14292 ctl_est_ua_all(lun, -1, CTL_UA_THIN_PROV_THRES); 14293 } 14294 } else { 14295 lun->lasttpt = 0; 14296 ctl_clr_ua_all(lun, -1, CTL_UA_THIN_PROV_THRES); 14297 } 14298 mtx_unlock(&lun->lun_lock); 14299 } 14300 mtx_unlock(&softc->ctl_lock); 14301 pause("-", CTL_LBP_PERIOD * hz); 14302 } 14303} 14304 14305static void 14306ctl_enqueue_incoming(union ctl_io *io) 14307{ 14308 struct ctl_softc *softc = control_softc; 14309 struct ctl_thread *thr; 14310 u_int idx; 14311 14312 idx = (io->io_hdr.nexus.targ_port * 127 + 14313 io->io_hdr.nexus.initid.id) % worker_threads; 14314 thr = &softc->threads[idx]; 14315 mtx_lock(&thr->queue_lock); 14316 STAILQ_INSERT_TAIL(&thr->incoming_queue, &io->io_hdr, links); 14317 mtx_unlock(&thr->queue_lock); 14318 wakeup(thr); 14319} 14320 14321static void 14322ctl_enqueue_rtr(union ctl_io *io) 14323{ 14324 struct ctl_softc *softc = control_softc; 14325 struct ctl_thread *thr; 14326 14327 thr = &softc->threads[io->io_hdr.nexus.targ_mapped_lun % worker_threads]; 14328 mtx_lock(&thr->queue_lock); 14329 STAILQ_INSERT_TAIL(&thr->rtr_queue, &io->io_hdr, links); 14330 mtx_unlock(&thr->queue_lock); 14331 wakeup(thr); 14332} 14333 14334static void 14335ctl_enqueue_done(union ctl_io *io) 14336{ 14337 struct ctl_softc *softc = control_softc; 14338 struct ctl_thread *thr; 14339 14340 thr = &softc->threads[io->io_hdr.nexus.targ_mapped_lun % worker_threads]; 14341 mtx_lock(&thr->queue_lock); 14342 STAILQ_INSERT_TAIL(&thr->done_queue, &io->io_hdr, links); 14343 mtx_unlock(&thr->queue_lock); 14344 wakeup(thr); 14345} 14346 14347static void 14348ctl_enqueue_isc(union ctl_io *io) 14349{ 14350 struct ctl_softc *softc = control_softc; 14351 struct ctl_thread *thr; 14352 14353 thr = &softc->threads[io->io_hdr.nexus.targ_mapped_lun % worker_threads]; 14354 mtx_lock(&thr->queue_lock); 14355 STAILQ_INSERT_TAIL(&thr->isc_queue, &io->io_hdr, links); 14356 mtx_unlock(&thr->queue_lock); 14357 wakeup(thr); 14358} 14359 14360/* Initialization and failover */ 14361 14362void 14363ctl_init_isc_msg(void) 14364{ 14365 printf("CTL: Still calling this thing\n"); 14366} 14367 14368/* 14369 * Init component 14370 * Initializes component into configuration defined by bootMode 14371 * (see hasc-sv.c) 14372 * returns hasc_Status: 14373 * OK 14374 * ERROR - fatal error 14375 */ 14376static ctl_ha_comp_status 14377ctl_isc_init(struct ctl_ha_component *c) 14378{ 14379 ctl_ha_comp_status ret = CTL_HA_COMP_STATUS_OK; 14380 14381 c->status = ret; 14382 return ret; 14383} 14384 14385/* Start component 14386 * Starts component in state requested. If component starts successfully, 14387 * it must set its own state to the requestrd state 14388 * When requested state is HASC_STATE_HA, the component may refine it 14389 * by adding _SLAVE or _MASTER flags. 14390 * Currently allowed state transitions are: 14391 * UNKNOWN->HA - initial startup 14392 * UNKNOWN->SINGLE - initial startup when no parter detected 14393 * HA->SINGLE - failover 14394 * returns ctl_ha_comp_status: 14395 * OK - component successfully started in requested state 14396 * FAILED - could not start the requested state, failover may 14397 * be possible 14398 * ERROR - fatal error detected, no future startup possible 14399 */ 14400static ctl_ha_comp_status 14401ctl_isc_start(struct ctl_ha_component *c, ctl_ha_state state) 14402{ 14403 ctl_ha_comp_status ret = CTL_HA_COMP_STATUS_OK; 14404 14405 printf("%s: go\n", __func__); 14406 14407 // UNKNOWN->HA or UNKNOWN->SINGLE (bootstrap) 14408 if (c->state == CTL_HA_STATE_UNKNOWN ) { 14409 control_softc->is_single = 0; 14410 if (ctl_ha_msg_create(CTL_HA_CHAN_CTL, ctl_isc_event_handler) 14411 != CTL_HA_STATUS_SUCCESS) { 14412 printf("ctl_isc_start: ctl_ha_msg_create failed.\n"); 14413 ret = CTL_HA_COMP_STATUS_ERROR; 14414 } 14415 } else if (CTL_HA_STATE_IS_HA(c->state) 14416 && CTL_HA_STATE_IS_SINGLE(state)){ 14417 // HA->SINGLE transition 14418 ctl_failover(); 14419 control_softc->is_single = 1; 14420 } else { 14421 printf("ctl_isc_start:Invalid state transition %X->%X\n", 14422 c->state, state); 14423 ret = CTL_HA_COMP_STATUS_ERROR; 14424 } 14425 if (CTL_HA_STATE_IS_SINGLE(state)) 14426 control_softc->is_single = 1; 14427 14428 c->state = state; 14429 c->status = ret; 14430 return ret; 14431} 14432 14433/* 14434 * Quiesce component 14435 * The component must clear any error conditions (set status to OK) and 14436 * prepare itself to another Start call 14437 * returns ctl_ha_comp_status: 14438 * OK 14439 * ERROR 14440 */ 14441static ctl_ha_comp_status 14442ctl_isc_quiesce(struct ctl_ha_component *c) 14443{ 14444 int ret = CTL_HA_COMP_STATUS_OK; 14445 14446 ctl_pause_rtr = 1; 14447 c->status = ret; 14448 return ret; 14449} 14450 14451struct ctl_ha_component ctl_ha_component_ctlisc = 14452{ 14453 .name = "CTL ISC", 14454 .state = CTL_HA_STATE_UNKNOWN, 14455 .init = ctl_isc_init, 14456 .start = ctl_isc_start, 14457 .quiesce = ctl_isc_quiesce 14458}; 14459 14460/* 14461 * vim: ts=8 14462 */ 14463