ctl.c revision 288731
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 288731 2015-10-05 08:55:59Z 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_util.h> 76#include <cam/ctl/ctl_backend.h> 77#include <cam/ctl/ctl_ioctl.h> 78#include <cam/ctl/ctl_ha.h> 79#include <cam/ctl/ctl_private.h> 80#include <cam/ctl/ctl_debug.h> 81#include <cam/ctl/ctl_scsi_all.h> 82#include <cam/ctl/ctl_error.h> 83 84struct ctl_softc *control_softc = NULL; 85 86/* 87 * Size and alignment macros needed for Copan-specific HA hardware. These 88 * can go away when the HA code is re-written, and uses busdma for any 89 * hardware. 90 */ 91#define CTL_ALIGN_8B(target, source, type) \ 92 if (((uint32_t)source & 0x7) != 0) \ 93 target = (type)(source + (0x8 - ((uint32_t)source & 0x7)));\ 94 else \ 95 target = (type)source; 96 97#define CTL_SIZE_8B(target, size) \ 98 if ((size & 0x7) != 0) \ 99 target = size + (0x8 - (size & 0x7)); \ 100 else \ 101 target = size; 102 103#define CTL_ALIGN_8B_MARGIN 16 104 105/* 106 * Template mode pages. 107 */ 108 109/* 110 * Note that these are default values only. The actual values will be 111 * filled in when the user does a mode sense. 112 */ 113const static struct copan_debugconf_subpage debugconf_page_default = { 114 DBGCNF_PAGE_CODE | SMPH_SPF, /* page_code */ 115 DBGCNF_SUBPAGE_CODE, /* subpage */ 116 {(sizeof(struct copan_debugconf_subpage) - 4) >> 8, 117 (sizeof(struct copan_debugconf_subpage) - 4) >> 0}, /* page_length */ 118 DBGCNF_VERSION, /* page_version */ 119 {CTL_TIME_IO_DEFAULT_SECS>>8, 120 CTL_TIME_IO_DEFAULT_SECS>>0}, /* ctl_time_io_secs */ 121}; 122 123const static struct copan_debugconf_subpage debugconf_page_changeable = { 124 DBGCNF_PAGE_CODE | SMPH_SPF, /* page_code */ 125 DBGCNF_SUBPAGE_CODE, /* subpage */ 126 {(sizeof(struct copan_debugconf_subpage) - 4) >> 8, 127 (sizeof(struct copan_debugconf_subpage) - 4) >> 0}, /* page_length */ 128 0, /* page_version */ 129 {0xff,0xff}, /* ctl_time_io_secs */ 130}; 131 132const static struct scsi_da_rw_recovery_page rw_er_page_default = { 133 /*page_code*/SMS_RW_ERROR_RECOVERY_PAGE, 134 /*page_length*/sizeof(struct scsi_da_rw_recovery_page) - 2, 135 /*byte3*/SMS_RWER_AWRE|SMS_RWER_ARRE, 136 /*read_retry_count*/0, 137 /*correction_span*/0, 138 /*head_offset_count*/0, 139 /*data_strobe_offset_cnt*/0, 140 /*byte8*/SMS_RWER_LBPERE, 141 /*write_retry_count*/0, 142 /*reserved2*/0, 143 /*recovery_time_limit*/{0, 0}, 144}; 145 146const static struct scsi_da_rw_recovery_page rw_er_page_changeable = { 147 /*page_code*/SMS_RW_ERROR_RECOVERY_PAGE, 148 /*page_length*/sizeof(struct scsi_da_rw_recovery_page) - 2, 149 /*byte3*/0, 150 /*read_retry_count*/0, 151 /*correction_span*/0, 152 /*head_offset_count*/0, 153 /*data_strobe_offset_cnt*/0, 154 /*byte8*/0, 155 /*write_retry_count*/0, 156 /*reserved2*/0, 157 /*recovery_time_limit*/{0, 0}, 158}; 159 160const static struct scsi_format_page format_page_default = { 161 /*page_code*/SMS_FORMAT_DEVICE_PAGE, 162 /*page_length*/sizeof(struct scsi_format_page) - 2, 163 /*tracks_per_zone*/ {0, 0}, 164 /*alt_sectors_per_zone*/ {0, 0}, 165 /*alt_tracks_per_zone*/ {0, 0}, 166 /*alt_tracks_per_lun*/ {0, 0}, 167 /*sectors_per_track*/ {(CTL_DEFAULT_SECTORS_PER_TRACK >> 8) & 0xff, 168 CTL_DEFAULT_SECTORS_PER_TRACK & 0xff}, 169 /*bytes_per_sector*/ {0, 0}, 170 /*interleave*/ {0, 0}, 171 /*track_skew*/ {0, 0}, 172 /*cylinder_skew*/ {0, 0}, 173 /*flags*/ SFP_HSEC, 174 /*reserved*/ {0, 0, 0} 175}; 176 177const static struct scsi_format_page format_page_changeable = { 178 /*page_code*/SMS_FORMAT_DEVICE_PAGE, 179 /*page_length*/sizeof(struct scsi_format_page) - 2, 180 /*tracks_per_zone*/ {0, 0}, 181 /*alt_sectors_per_zone*/ {0, 0}, 182 /*alt_tracks_per_zone*/ {0, 0}, 183 /*alt_tracks_per_lun*/ {0, 0}, 184 /*sectors_per_track*/ {0, 0}, 185 /*bytes_per_sector*/ {0, 0}, 186 /*interleave*/ {0, 0}, 187 /*track_skew*/ {0, 0}, 188 /*cylinder_skew*/ {0, 0}, 189 /*flags*/ 0, 190 /*reserved*/ {0, 0, 0} 191}; 192 193const static struct scsi_rigid_disk_page rigid_disk_page_default = { 194 /*page_code*/SMS_RIGID_DISK_PAGE, 195 /*page_length*/sizeof(struct scsi_rigid_disk_page) - 2, 196 /*cylinders*/ {0, 0, 0}, 197 /*heads*/ CTL_DEFAULT_HEADS, 198 /*start_write_precomp*/ {0, 0, 0}, 199 /*start_reduced_current*/ {0, 0, 0}, 200 /*step_rate*/ {0, 0}, 201 /*landing_zone_cylinder*/ {0, 0, 0}, 202 /*rpl*/ SRDP_RPL_DISABLED, 203 /*rotational_offset*/ 0, 204 /*reserved1*/ 0, 205 /*rotation_rate*/ {(CTL_DEFAULT_ROTATION_RATE >> 8) & 0xff, 206 CTL_DEFAULT_ROTATION_RATE & 0xff}, 207 /*reserved2*/ {0, 0} 208}; 209 210const static struct scsi_rigid_disk_page rigid_disk_page_changeable = { 211 /*page_code*/SMS_RIGID_DISK_PAGE, 212 /*page_length*/sizeof(struct scsi_rigid_disk_page) - 2, 213 /*cylinders*/ {0, 0, 0}, 214 /*heads*/ 0, 215 /*start_write_precomp*/ {0, 0, 0}, 216 /*start_reduced_current*/ {0, 0, 0}, 217 /*step_rate*/ {0, 0}, 218 /*landing_zone_cylinder*/ {0, 0, 0}, 219 /*rpl*/ 0, 220 /*rotational_offset*/ 0, 221 /*reserved1*/ 0, 222 /*rotation_rate*/ {0, 0}, 223 /*reserved2*/ {0, 0} 224}; 225 226const static struct scsi_caching_page caching_page_default = { 227 /*page_code*/SMS_CACHING_PAGE, 228 /*page_length*/sizeof(struct scsi_caching_page) - 2, 229 /*flags1*/ SCP_DISC | SCP_WCE, 230 /*ret_priority*/ 0, 231 /*disable_pf_transfer_len*/ {0xff, 0xff}, 232 /*min_prefetch*/ {0, 0}, 233 /*max_prefetch*/ {0xff, 0xff}, 234 /*max_pf_ceiling*/ {0xff, 0xff}, 235 /*flags2*/ 0, 236 /*cache_segments*/ 0, 237 /*cache_seg_size*/ {0, 0}, 238 /*reserved*/ 0, 239 /*non_cache_seg_size*/ {0, 0, 0} 240}; 241 242const static struct scsi_caching_page caching_page_changeable = { 243 /*page_code*/SMS_CACHING_PAGE, 244 /*page_length*/sizeof(struct scsi_caching_page) - 2, 245 /*flags1*/ SCP_WCE | SCP_RCD, 246 /*ret_priority*/ 0, 247 /*disable_pf_transfer_len*/ {0, 0}, 248 /*min_prefetch*/ {0, 0}, 249 /*max_prefetch*/ {0, 0}, 250 /*max_pf_ceiling*/ {0, 0}, 251 /*flags2*/ 0, 252 /*cache_segments*/ 0, 253 /*cache_seg_size*/ {0, 0}, 254 /*reserved*/ 0, 255 /*non_cache_seg_size*/ {0, 0, 0} 256}; 257 258const static struct scsi_control_page control_page_default = { 259 /*page_code*/SMS_CONTROL_MODE_PAGE, 260 /*page_length*/sizeof(struct scsi_control_page) - 2, 261 /*rlec*/0, 262 /*queue_flags*/SCP_QUEUE_ALG_RESTRICTED, 263 /*eca_and_aen*/0, 264 /*flags4*/SCP_TAS, 265 /*aen_holdoff_period*/{0, 0}, 266 /*busy_timeout_period*/{0, 0}, 267 /*extended_selftest_completion_time*/{0, 0} 268}; 269 270const static struct scsi_control_page control_page_changeable = { 271 /*page_code*/SMS_CONTROL_MODE_PAGE, 272 /*page_length*/sizeof(struct scsi_control_page) - 2, 273 /*rlec*/SCP_DSENSE, 274 /*queue_flags*/SCP_QUEUE_ALG_MASK, 275 /*eca_and_aen*/SCP_SWP, 276 /*flags4*/0, 277 /*aen_holdoff_period*/{0, 0}, 278 /*busy_timeout_period*/{0, 0}, 279 /*extended_selftest_completion_time*/{0, 0} 280}; 281 282const static struct scsi_info_exceptions_page ie_page_default = { 283 /*page_code*/SMS_INFO_EXCEPTIONS_PAGE, 284 /*page_length*/sizeof(struct scsi_info_exceptions_page) - 2, 285 /*info_flags*/SIEP_FLAGS_DEXCPT, 286 /*mrie*/0, 287 /*interval_timer*/{0, 0, 0, 0}, 288 /*report_count*/{0, 0, 0, 0} 289}; 290 291const static struct scsi_info_exceptions_page ie_page_changeable = { 292 /*page_code*/SMS_INFO_EXCEPTIONS_PAGE, 293 /*page_length*/sizeof(struct scsi_info_exceptions_page) - 2, 294 /*info_flags*/0, 295 /*mrie*/0, 296 /*interval_timer*/{0, 0, 0, 0}, 297 /*report_count*/{0, 0, 0, 0} 298}; 299 300#define CTL_LBPM_LEN (sizeof(struct ctl_logical_block_provisioning_page) - 4) 301 302const static struct ctl_logical_block_provisioning_page lbp_page_default = {{ 303 /*page_code*/SMS_INFO_EXCEPTIONS_PAGE | SMPH_SPF, 304 /*subpage_code*/0x02, 305 /*page_length*/{CTL_LBPM_LEN >> 8, CTL_LBPM_LEN}, 306 /*flags*/0, 307 /*reserved*/{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}, 308 /*descr*/{}}, 309 {{/*flags*/0, 310 /*resource*/0x01, 311 /*reserved*/{0, 0}, 312 /*count*/{0, 0, 0, 0}}, 313 {/*flags*/0, 314 /*resource*/0x02, 315 /*reserved*/{0, 0}, 316 /*count*/{0, 0, 0, 0}}, 317 {/*flags*/0, 318 /*resource*/0xf1, 319 /*reserved*/{0, 0}, 320 /*count*/{0, 0, 0, 0}}, 321 {/*flags*/0, 322 /*resource*/0xf2, 323 /*reserved*/{0, 0}, 324 /*count*/{0, 0, 0, 0}} 325 } 326}; 327 328const static struct ctl_logical_block_provisioning_page lbp_page_changeable = {{ 329 /*page_code*/SMS_INFO_EXCEPTIONS_PAGE | SMPH_SPF, 330 /*subpage_code*/0x02, 331 /*page_length*/{CTL_LBPM_LEN >> 8, CTL_LBPM_LEN}, 332 /*flags*/0, 333 /*reserved*/{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}, 334 /*descr*/{}}, 335 {{/*flags*/0, 336 /*resource*/0, 337 /*reserved*/{0, 0}, 338 /*count*/{0, 0, 0, 0}}, 339 {/*flags*/0, 340 /*resource*/0, 341 /*reserved*/{0, 0}, 342 /*count*/{0, 0, 0, 0}}, 343 {/*flags*/0, 344 /*resource*/0, 345 /*reserved*/{0, 0}, 346 /*count*/{0, 0, 0, 0}}, 347 {/*flags*/0, 348 /*resource*/0, 349 /*reserved*/{0, 0}, 350 /*count*/{0, 0, 0, 0}} 351 } 352}; 353 354/* 355 * XXX KDM move these into the softc. 356 */ 357static int rcv_sync_msg; 358static uint8_t ctl_pause_rtr; 359 360SYSCTL_NODE(_kern_cam, OID_AUTO, ctl, CTLFLAG_RD, 0, "CAM Target Layer"); 361static int worker_threads = -1; 362TUNABLE_INT("kern.cam.ctl.worker_threads", &worker_threads); 363SYSCTL_INT(_kern_cam_ctl, OID_AUTO, worker_threads, CTLFLAG_RDTUN, 364 &worker_threads, 1, "Number of worker threads"); 365static int ctl_debug = CTL_DEBUG_NONE; 366TUNABLE_INT("kern.cam.ctl.debug", &ctl_debug); 367SYSCTL_INT(_kern_cam_ctl, OID_AUTO, debug, CTLFLAG_RWTUN, 368 &ctl_debug, 0, "Enabled debug flags"); 369 370/* 371 * Supported pages (0x00), Serial number (0x80), Device ID (0x83), 372 * Extended INQUIRY Data (0x86), Mode Page Policy (0x87), 373 * SCSI Ports (0x88), Third-party Copy (0x8F), Block limits (0xB0), 374 * Block Device Characteristics (0xB1) and Logical Block Provisioning (0xB2) 375 */ 376#define SCSI_EVPD_NUM_SUPPORTED_PAGES 10 377 378#ifdef notyet 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); 382#endif 383static int ctl_init(void); 384void ctl_shutdown(void); 385static int ctl_open(struct cdev *dev, int flags, int fmt, struct thread *td); 386static int ctl_close(struct cdev *dev, int flags, int fmt, struct thread *td); 387static int ctl_serialize_other_sc_cmd(struct ctl_scsiio *ctsio); 388static int ctl_ioctl_fill_ooa(struct ctl_lun *lun, uint32_t *cur_fill_num, 389 struct ctl_ooa *ooa_hdr, 390 struct ctl_ooa_entry *kern_entries); 391static int ctl_ioctl(struct cdev *dev, u_long cmd, caddr_t addr, int flag, 392 struct thread *td); 393static int ctl_alloc_lun(struct ctl_softc *ctl_softc, struct ctl_lun *lun, 394 struct ctl_be_lun *be_lun); 395static int ctl_free_lun(struct ctl_lun *lun); 396static void ctl_create_lun(struct ctl_be_lun *be_lun); 397static struct ctl_port * ctl_io_port(struct ctl_io_hdr *io_hdr); 398/** 399static void ctl_failover_change_pages(struct ctl_softc *softc, 400 struct ctl_scsiio *ctsio, int master); 401**/ 402 403static int ctl_do_mode_select(union ctl_io *io); 404static int ctl_pro_preempt(struct ctl_softc *softc, struct ctl_lun *lun, 405 uint64_t res_key, uint64_t sa_res_key, 406 uint8_t type, uint32_t residx, 407 struct ctl_scsiio *ctsio, 408 struct scsi_per_res_out *cdb, 409 struct scsi_per_res_out_parms* param); 410static void ctl_pro_preempt_other(struct ctl_lun *lun, 411 union ctl_ha_msg *msg); 412static void ctl_hndl_per_res_out_on_other_sc(union ctl_ha_msg *msg); 413static int ctl_inquiry_evpd_supported(struct ctl_scsiio *ctsio, int alloc_len); 414static int ctl_inquiry_evpd_serial(struct ctl_scsiio *ctsio, int alloc_len); 415static int ctl_inquiry_evpd_devid(struct ctl_scsiio *ctsio, int alloc_len); 416static int ctl_inquiry_evpd_eid(struct ctl_scsiio *ctsio, int alloc_len); 417static int ctl_inquiry_evpd_mpp(struct ctl_scsiio *ctsio, int alloc_len); 418static int ctl_inquiry_evpd_scsi_ports(struct ctl_scsiio *ctsio, 419 int alloc_len); 420static int ctl_inquiry_evpd_block_limits(struct ctl_scsiio *ctsio, 421 int alloc_len); 422static int ctl_inquiry_evpd_bdc(struct ctl_scsiio *ctsio, int alloc_len); 423static int ctl_inquiry_evpd_lbp(struct ctl_scsiio *ctsio, int alloc_len); 424static int ctl_inquiry_evpd(struct ctl_scsiio *ctsio); 425static int ctl_inquiry_std(struct ctl_scsiio *ctsio); 426static int ctl_get_lba_len(union ctl_io *io, uint64_t *lba, uint64_t *len); 427static ctl_action ctl_extent_check(union ctl_io *io1, union ctl_io *io2, 428 bool seq); 429static ctl_action ctl_extent_check_seq(union ctl_io *io1, union ctl_io *io2); 430static ctl_action ctl_check_for_blockage(struct ctl_lun *lun, 431 union ctl_io *pending_io, union ctl_io *ooa_io); 432static ctl_action ctl_check_ooa(struct ctl_lun *lun, union ctl_io *pending_io, 433 union ctl_io *starting_io); 434static int ctl_check_blocked(struct ctl_lun *lun); 435static int ctl_scsiio_lun_check(struct ctl_lun *lun, 436 const struct ctl_cmd_entry *entry, 437 struct ctl_scsiio *ctsio); 438//static int ctl_check_rtr(union ctl_io *pending_io, struct ctl_softc *softc); 439#ifdef notyet 440static void ctl_failover(void); 441#endif 442static void ctl_clr_ua_allluns(struct ctl_softc *ctl_softc, uint32_t initidx, 443 ctl_ua_type ua_type); 444static int ctl_scsiio_precheck(struct ctl_softc *ctl_softc, 445 struct ctl_scsiio *ctsio); 446static int ctl_scsiio(struct ctl_scsiio *ctsio); 447 448static int ctl_bus_reset(struct ctl_softc *ctl_softc, union ctl_io *io); 449static int ctl_target_reset(struct ctl_softc *ctl_softc, union ctl_io *io, 450 ctl_ua_type ua_type); 451static int ctl_lun_reset(struct ctl_lun *lun, union ctl_io *io, 452 ctl_ua_type ua_type); 453static int ctl_abort_task(union ctl_io *io); 454static int ctl_abort_task_set(union ctl_io *io); 455static int ctl_i_t_nexus_reset(union ctl_io *io); 456static void ctl_run_task(union ctl_io *io); 457#ifdef CTL_IO_DELAY 458static void ctl_datamove_timer_wakeup(void *arg); 459static void ctl_done_timer_wakeup(void *arg); 460#endif /* CTL_IO_DELAY */ 461 462static void ctl_send_datamove_done(union ctl_io *io, int have_lock); 463static void ctl_datamove_remote_write_cb(struct ctl_ha_dt_req *rq); 464static int ctl_datamove_remote_dm_write_cb(union ctl_io *io); 465static void ctl_datamove_remote_write(union ctl_io *io); 466static int ctl_datamove_remote_dm_read_cb(union ctl_io *io); 467static void ctl_datamove_remote_read_cb(struct ctl_ha_dt_req *rq); 468static int ctl_datamove_remote_sgl_setup(union ctl_io *io); 469static int ctl_datamove_remote_xfer(union ctl_io *io, unsigned command, 470 ctl_ha_dt_cb callback); 471static void ctl_datamove_remote_read(union ctl_io *io); 472static void ctl_datamove_remote(union ctl_io *io); 473static int ctl_process_done(union ctl_io *io); 474static void ctl_lun_thread(void *arg); 475static void ctl_thresh_thread(void *arg); 476static void ctl_work_thread(void *arg); 477static void ctl_enqueue_incoming(union ctl_io *io); 478static void ctl_enqueue_rtr(union ctl_io *io); 479static void ctl_enqueue_done(union ctl_io *io); 480#ifdef notyet 481static void ctl_enqueue_isc(union ctl_io *io); 482#endif 483static const struct ctl_cmd_entry * 484 ctl_get_cmd_entry(struct ctl_scsiio *ctsio, int *sa); 485static const struct ctl_cmd_entry * 486 ctl_validate_command(struct ctl_scsiio *ctsio); 487static int ctl_cmd_applicable(uint8_t lun_type, 488 const struct ctl_cmd_entry *entry); 489 490/* 491 * Load the serialization table. This isn't very pretty, but is probably 492 * the easiest way to do it. 493 */ 494#include "ctl_ser_table.c" 495 496/* 497 * We only need to define open, close and ioctl routines for this driver. 498 */ 499static struct cdevsw ctl_cdevsw = { 500 .d_version = D_VERSION, 501 .d_flags = 0, 502 .d_open = ctl_open, 503 .d_close = ctl_close, 504 .d_ioctl = ctl_ioctl, 505 .d_name = "ctl", 506}; 507 508 509MALLOC_DEFINE(M_CTL, "ctlmem", "Memory used for CTL"); 510 511static int ctl_module_event_handler(module_t, int /*modeventtype_t*/, void *); 512 513static moduledata_t ctl_moduledata = { 514 "ctl", 515 ctl_module_event_handler, 516 NULL 517}; 518 519DECLARE_MODULE(ctl, ctl_moduledata, SI_SUB_CONFIGURE, SI_ORDER_THIRD); 520MODULE_VERSION(ctl, 1); 521 522#ifdef notyet 523static void 524ctl_isc_handler_finish_xfer(struct ctl_softc *ctl_softc, 525 union ctl_ha_msg *msg_info) 526{ 527 struct ctl_scsiio *ctsio; 528 529 if (msg_info->hdr.original_sc == NULL) { 530 printf("%s: original_sc == NULL!\n", __func__); 531 /* XXX KDM now what? */ 532 return; 533 } 534 535 ctsio = &msg_info->hdr.original_sc->scsiio; 536 ctsio->io_hdr.flags |= CTL_FLAG_IO_ACTIVE; 537 ctsio->io_hdr.msg_type = CTL_MSG_FINISH_IO; 538 ctsio->io_hdr.status = msg_info->hdr.status; 539 ctsio->scsi_status = msg_info->scsi.scsi_status; 540 ctsio->sense_len = msg_info->scsi.sense_len; 541 ctsio->sense_residual = msg_info->scsi.sense_residual; 542 ctsio->residual = msg_info->scsi.residual; 543 memcpy(&ctsio->sense_data, &msg_info->scsi.sense_data, 544 sizeof(ctsio->sense_data)); 545 memcpy(&ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN].bytes, 546 &msg_info->scsi.lbalen, sizeof(msg_info->scsi.lbalen)); 547 ctl_enqueue_isc((union ctl_io *)ctsio); 548} 549 550static void 551ctl_isc_handler_finish_ser_only(struct ctl_softc *ctl_softc, 552 union ctl_ha_msg *msg_info) 553{ 554 struct ctl_scsiio *ctsio; 555 556 if (msg_info->hdr.serializing_sc == NULL) { 557 printf("%s: serializing_sc == NULL!\n", __func__); 558 /* XXX KDM now what? */ 559 return; 560 } 561 562 ctsio = &msg_info->hdr.serializing_sc->scsiio; 563#if 0 564 /* 565 * Attempt to catch the situation where an I/O has 566 * been freed, and we're using it again. 567 */ 568 if (ctsio->io_hdr.io_type == 0xff) { 569 union ctl_io *tmp_io; 570 tmp_io = (union ctl_io *)ctsio; 571 printf("%s: %p use after free!\n", __func__, 572 ctsio); 573 printf("%s: type %d msg %d cdb %x iptl: " 574 "%u:%u:%u tag 0x%04x " 575 "flag %#x status %x\n", 576 __func__, 577 tmp_io->io_hdr.io_type, 578 tmp_io->io_hdr.msg_type, 579 tmp_io->scsiio.cdb[0], 580 tmp_io->io_hdr.nexus.initid, 581 tmp_io->io_hdr.nexus.targ_port, 582 tmp_io->io_hdr.nexus.targ_lun, 583 (tmp_io->io_hdr.io_type == 584 CTL_IO_TASK) ? 585 tmp_io->taskio.tag_num : 586 tmp_io->scsiio.tag_num, 587 tmp_io->io_hdr.flags, 588 tmp_io->io_hdr.status); 589 } 590#endif 591 ctsio->io_hdr.msg_type = CTL_MSG_FINISH_IO; 592 ctl_enqueue_isc((union ctl_io *)ctsio); 593} 594 595/* 596 * ISC (Inter Shelf Communication) event handler. Events from the HA 597 * subsystem come in here. 598 */ 599static void 600ctl_isc_event_handler(ctl_ha_channel channel, ctl_ha_event event, int param) 601{ 602 struct ctl_softc *softc; 603 union ctl_io *io; 604 struct ctl_prio *presio; 605 ctl_ha_status isc_status; 606 607 softc = control_softc; 608 io = NULL; 609 610 611#if 0 612 printf("CTL: Isc Msg event %d\n", event); 613#endif 614 if (event == CTL_HA_EVT_MSG_RECV) { 615 union ctl_ha_msg msg_info; 616 617 isc_status = ctl_ha_msg_recv(CTL_HA_CHAN_CTL, &msg_info, 618 sizeof(msg_info), /*wait*/ 0); 619#if 0 620 printf("CTL: msg_type %d\n", msg_info.msg_type); 621#endif 622 if (isc_status != 0) { 623 printf("Error receiving message, status = %d\n", 624 isc_status); 625 return; 626 } 627 628 switch (msg_info.hdr.msg_type) { 629 case CTL_MSG_SERIALIZE: 630#if 0 631 printf("Serialize\n"); 632#endif 633 io = ctl_alloc_io_nowait(softc->othersc_pool); 634 if (io == NULL) { 635 printf("ctl_isc_event_handler: can't allocate " 636 "ctl_io!\n"); 637 /* Bad Juju */ 638 /* Need to set busy and send msg back */ 639 msg_info.hdr.msg_type = CTL_MSG_BAD_JUJU; 640 msg_info.hdr.status = CTL_SCSI_ERROR; 641 msg_info.scsi.scsi_status = SCSI_STATUS_BUSY; 642 msg_info.scsi.sense_len = 0; 643 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 644 sizeof(msg_info), 0) > CTL_HA_STATUS_SUCCESS){ 645 } 646 goto bailout; 647 } 648 ctl_zero_io(io); 649 // populate ctsio from msg_info 650 io->io_hdr.io_type = CTL_IO_SCSI; 651 io->io_hdr.msg_type = CTL_MSG_SERIALIZE; 652 io->io_hdr.original_sc = msg_info.hdr.original_sc; 653#if 0 654 printf("pOrig %x\n", (int)msg_info.original_sc); 655#endif 656 io->io_hdr.flags |= CTL_FLAG_FROM_OTHER_SC | 657 CTL_FLAG_IO_ACTIVE; 658 /* 659 * If we're in serialization-only mode, we don't 660 * want to go through full done processing. Thus 661 * the COPY flag. 662 * 663 * XXX KDM add another flag that is more specific. 664 */ 665 if (softc->ha_mode == CTL_HA_MODE_SER_ONLY) 666 io->io_hdr.flags |= CTL_FLAG_INT_COPY; 667 io->io_hdr.nexus = msg_info.hdr.nexus; 668#if 0 669 printf("port %u, iid %u, lun %u\n", 670 io->io_hdr.nexus.targ_port, 671 io->io_hdr.nexus.initid, 672 io->io_hdr.nexus.targ_lun); 673#endif 674 io->scsiio.tag_num = msg_info.scsi.tag_num; 675 io->scsiio.tag_type = msg_info.scsi.tag_type; 676 memcpy(io->scsiio.cdb, msg_info.scsi.cdb, 677 CTL_MAX_CDBLEN); 678 if (softc->ha_mode == CTL_HA_MODE_XFER) { 679 const struct ctl_cmd_entry *entry; 680 681 entry = ctl_get_cmd_entry(&io->scsiio, NULL); 682 io->io_hdr.flags &= ~CTL_FLAG_DATA_MASK; 683 io->io_hdr.flags |= 684 entry->flags & CTL_FLAG_DATA_MASK; 685 } 686 ctl_enqueue_isc(io); 687 break; 688 689 /* Performed on the Originating SC, XFER mode only */ 690 case CTL_MSG_DATAMOVE: { 691 struct ctl_sg_entry *sgl; 692 int i, j; 693 694 io = msg_info.hdr.original_sc; 695 if (io == NULL) { 696 printf("%s: original_sc == NULL!\n", __func__); 697 /* XXX KDM do something here */ 698 break; 699 } 700 io->io_hdr.msg_type = CTL_MSG_DATAMOVE; 701 io->io_hdr.flags |= CTL_FLAG_IO_ACTIVE; 702 /* 703 * Keep track of this, we need to send it back over 704 * when the datamove is complete. 705 */ 706 io->io_hdr.serializing_sc = msg_info.hdr.serializing_sc; 707 708 if (msg_info.dt.sg_sequence == 0) { 709 /* 710 * XXX KDM we use the preallocated S/G list 711 * here, but we'll need to change this to 712 * dynamic allocation if we need larger S/G 713 * lists. 714 */ 715 if (msg_info.dt.kern_sg_entries > 716 sizeof(io->io_hdr.remote_sglist) / 717 sizeof(io->io_hdr.remote_sglist[0])) { 718 printf("%s: number of S/G entries " 719 "needed %u > allocated num %zd\n", 720 __func__, 721 msg_info.dt.kern_sg_entries, 722 sizeof(io->io_hdr.remote_sglist)/ 723 sizeof(io->io_hdr.remote_sglist[0])); 724 725 /* 726 * XXX KDM send a message back to 727 * the other side to shut down the 728 * DMA. The error will come back 729 * through via the normal channel. 730 */ 731 break; 732 } 733 sgl = io->io_hdr.remote_sglist; 734 memset(sgl, 0, 735 sizeof(io->io_hdr.remote_sglist)); 736 737 io->scsiio.kern_data_ptr = (uint8_t *)sgl; 738 739 io->scsiio.kern_sg_entries = 740 msg_info.dt.kern_sg_entries; 741 io->scsiio.rem_sg_entries = 742 msg_info.dt.kern_sg_entries; 743 io->scsiio.kern_data_len = 744 msg_info.dt.kern_data_len; 745 io->scsiio.kern_total_len = 746 msg_info.dt.kern_total_len; 747 io->scsiio.kern_data_resid = 748 msg_info.dt.kern_data_resid; 749 io->scsiio.kern_rel_offset = 750 msg_info.dt.kern_rel_offset; 751 /* 752 * Clear out per-DMA flags. 753 */ 754 io->io_hdr.flags &= ~CTL_FLAG_RDMA_MASK; 755 /* 756 * Add per-DMA flags that are set for this 757 * particular DMA request. 758 */ 759 io->io_hdr.flags |= msg_info.dt.flags & 760 CTL_FLAG_RDMA_MASK; 761 } else 762 sgl = (struct ctl_sg_entry *) 763 io->scsiio.kern_data_ptr; 764 765 for (i = msg_info.dt.sent_sg_entries, j = 0; 766 i < (msg_info.dt.sent_sg_entries + 767 msg_info.dt.cur_sg_entries); i++, j++) { 768 sgl[i].addr = msg_info.dt.sg_list[j].addr; 769 sgl[i].len = msg_info.dt.sg_list[j].len; 770 771#if 0 772 printf("%s: L: %p,%d -> %p,%d j=%d, i=%d\n", 773 __func__, 774 msg_info.dt.sg_list[j].addr, 775 msg_info.dt.sg_list[j].len, 776 sgl[i].addr, sgl[i].len, j, i); 777#endif 778 } 779#if 0 780 memcpy(&sgl[msg_info.dt.sent_sg_entries], 781 msg_info.dt.sg_list, 782 sizeof(*sgl) * msg_info.dt.cur_sg_entries); 783#endif 784 785 /* 786 * If this is the last piece of the I/O, we've got 787 * the full S/G list. Queue processing in the thread. 788 * Otherwise wait for the next piece. 789 */ 790 if (msg_info.dt.sg_last != 0) 791 ctl_enqueue_isc(io); 792 break; 793 } 794 /* Performed on the Serializing (primary) SC, XFER mode only */ 795 case CTL_MSG_DATAMOVE_DONE: { 796 if (msg_info.hdr.serializing_sc == NULL) { 797 printf("%s: serializing_sc == NULL!\n", 798 __func__); 799 /* XXX KDM now what? */ 800 break; 801 } 802 /* 803 * We grab the sense information here in case 804 * there was a failure, so we can return status 805 * back to the initiator. 806 */ 807 io = msg_info.hdr.serializing_sc; 808 io->io_hdr.msg_type = CTL_MSG_DATAMOVE_DONE; 809 io->io_hdr.status = msg_info.hdr.status; 810 io->scsiio.scsi_status = msg_info.scsi.scsi_status; 811 io->scsiio.sense_len = msg_info.scsi.sense_len; 812 io->scsiio.sense_residual =msg_info.scsi.sense_residual; 813 io->io_hdr.port_status = msg_info.scsi.fetd_status; 814 io->scsiio.residual = msg_info.scsi.residual; 815 memcpy(&io->scsiio.sense_data,&msg_info.scsi.sense_data, 816 sizeof(io->scsiio.sense_data)); 817 ctl_enqueue_isc(io); 818 break; 819 } 820 821 /* Preformed on Originating SC, SER_ONLY mode */ 822 case CTL_MSG_R2R: 823 io = msg_info.hdr.original_sc; 824 if (io == NULL) { 825 printf("%s: Major Bummer\n", __func__); 826 return; 827 } else { 828#if 0 829 printf("pOrig %x\n",(int) ctsio); 830#endif 831 } 832 io->io_hdr.msg_type = CTL_MSG_R2R; 833 io->io_hdr.serializing_sc = msg_info.hdr.serializing_sc; 834 ctl_enqueue_isc(io); 835 break; 836 837 /* 838 * Performed on Serializing(i.e. primary SC) SC in SER_ONLY 839 * mode. 840 * Performed on the Originating (i.e. secondary) SC in XFER 841 * mode 842 */ 843 case CTL_MSG_FINISH_IO: 844 if (softc->ha_mode == CTL_HA_MODE_XFER) 845 ctl_isc_handler_finish_xfer(softc, 846 &msg_info); 847 else 848 ctl_isc_handler_finish_ser_only(softc, 849 &msg_info); 850 break; 851 852 /* Preformed on Originating SC */ 853 case CTL_MSG_BAD_JUJU: 854 io = msg_info.hdr.original_sc; 855 if (io == NULL) { 856 printf("%s: Bad JUJU!, original_sc is NULL!\n", 857 __func__); 858 break; 859 } 860 ctl_copy_sense_data(&msg_info, io); 861 /* 862 * IO should have already been cleaned up on other 863 * SC so clear this flag so we won't send a message 864 * back to finish the IO there. 865 */ 866 io->io_hdr.flags &= ~CTL_FLAG_SENT_2OTHER_SC; 867 io->io_hdr.flags |= CTL_FLAG_IO_ACTIVE; 868 869 /* io = msg_info.hdr.serializing_sc; */ 870 io->io_hdr.msg_type = CTL_MSG_BAD_JUJU; 871 ctl_enqueue_isc(io); 872 break; 873 874 /* Handle resets sent from the other side */ 875 case CTL_MSG_MANAGE_TASKS: { 876 struct ctl_taskio *taskio; 877 taskio = (struct ctl_taskio *)ctl_alloc_io_nowait( 878 softc->othersc_pool); 879 if (taskio == NULL) { 880 printf("ctl_isc_event_handler: can't allocate " 881 "ctl_io!\n"); 882 /* Bad Juju */ 883 /* should I just call the proper reset func 884 here??? */ 885 goto bailout; 886 } 887 ctl_zero_io((union ctl_io *)taskio); 888 taskio->io_hdr.io_type = CTL_IO_TASK; 889 taskio->io_hdr.flags |= CTL_FLAG_FROM_OTHER_SC; 890 taskio->io_hdr.nexus = msg_info.hdr.nexus; 891 taskio->task_action = msg_info.task.task_action; 892 taskio->tag_num = msg_info.task.tag_num; 893 taskio->tag_type = msg_info.task.tag_type; 894#ifdef CTL_TIME_IO 895 taskio->io_hdr.start_time = time_uptime; 896 getbintime(&taskio->io_hdr.start_bt); 897#if 0 898 cs_prof_gettime(&taskio->io_hdr.start_ticks); 899#endif 900#endif /* CTL_TIME_IO */ 901 ctl_run_task((union ctl_io *)taskio); 902 break; 903 } 904 /* Persistent Reserve action which needs attention */ 905 case CTL_MSG_PERS_ACTION: 906 presio = (struct ctl_prio *)ctl_alloc_io_nowait( 907 softc->othersc_pool); 908 if (presio == NULL) { 909 printf("ctl_isc_event_handler: can't allocate " 910 "ctl_io!\n"); 911 /* Bad Juju */ 912 /* Need to set busy and send msg back */ 913 goto bailout; 914 } 915 ctl_zero_io((union ctl_io *)presio); 916 presio->io_hdr.msg_type = CTL_MSG_PERS_ACTION; 917 presio->pr_msg = msg_info.pr; 918 ctl_enqueue_isc((union ctl_io *)presio); 919 break; 920 case CTL_MSG_SYNC_FE: 921 rcv_sync_msg = 1; 922 break; 923 default: 924 printf("How did I get here?\n"); 925 } 926 } else if (event == CTL_HA_EVT_MSG_SENT) { 927 if (param != CTL_HA_STATUS_SUCCESS) { 928 printf("Bad status from ctl_ha_msg_send status %d\n", 929 param); 930 } 931 return; 932 } else if (event == CTL_HA_EVT_DISCONNECT) { 933 printf("CTL: Got a disconnect from Isc\n"); 934 return; 935 } else { 936 printf("ctl_isc_event_handler: Unknown event %d\n", event); 937 return; 938 } 939 940bailout: 941 return; 942} 943 944static void 945ctl_copy_sense_data(union ctl_ha_msg *src, union ctl_io *dest) 946{ 947 struct scsi_sense_data *sense; 948 949 sense = &dest->scsiio.sense_data; 950 bcopy(&src->scsi.sense_data, sense, sizeof(*sense)); 951 dest->scsiio.scsi_status = src->scsi.scsi_status; 952 dest->scsiio.sense_len = src->scsi.sense_len; 953 dest->io_hdr.status = src->hdr.status; 954} 955#endif 956 957static void 958ctl_est_ua(struct ctl_lun *lun, uint32_t initidx, ctl_ua_type ua) 959{ 960 ctl_ua_type *pu; 961 962 mtx_assert(&lun->lun_lock, MA_OWNED); 963 pu = lun->pending_ua[initidx / CTL_MAX_INIT_PER_PORT]; 964 if (pu == NULL) 965 return; 966 pu[initidx % CTL_MAX_INIT_PER_PORT] |= ua; 967} 968 969static void 970ctl_est_ua_all(struct ctl_lun *lun, uint32_t except, ctl_ua_type ua) 971{ 972 int i, j; 973 974 mtx_assert(&lun->lun_lock, MA_OWNED); 975 for (i = 0; i < CTL_MAX_PORTS; i++) { 976 if (lun->pending_ua[i] == NULL) 977 continue; 978 for (j = 0; j < CTL_MAX_INIT_PER_PORT; j++) { 979 if (i * CTL_MAX_INIT_PER_PORT + j == except) 980 continue; 981 lun->pending_ua[i][j] |= ua; 982 } 983 } 984} 985 986static void 987ctl_clr_ua(struct ctl_lun *lun, uint32_t initidx, ctl_ua_type ua) 988{ 989 ctl_ua_type *pu; 990 991 mtx_assert(&lun->lun_lock, MA_OWNED); 992 pu = lun->pending_ua[initidx / CTL_MAX_INIT_PER_PORT]; 993 if (pu == NULL) 994 return; 995 pu[initidx % CTL_MAX_INIT_PER_PORT] &= ~ua; 996} 997 998static void 999ctl_clr_ua_all(struct ctl_lun *lun, uint32_t except, ctl_ua_type ua) 1000{ 1001 int i, j; 1002 1003 mtx_assert(&lun->lun_lock, MA_OWNED); 1004 for (i = 0; i < CTL_MAX_PORTS; i++) { 1005 if (lun->pending_ua[i] == NULL) 1006 continue; 1007 for (j = 0; j < CTL_MAX_INIT_PER_PORT; j++) { 1008 if (i * CTL_MAX_INIT_PER_PORT + j == except) 1009 continue; 1010 lun->pending_ua[i][j] &= ~ua; 1011 } 1012 } 1013} 1014 1015static void 1016ctl_clr_ua_allluns(struct ctl_softc *ctl_softc, uint32_t initidx, 1017 ctl_ua_type ua_type) 1018{ 1019 struct ctl_lun *lun; 1020 1021 mtx_assert(&ctl_softc->ctl_lock, MA_OWNED); 1022 STAILQ_FOREACH(lun, &ctl_softc->lun_list, links) { 1023 mtx_lock(&lun->lun_lock); 1024 ctl_clr_ua(lun, initidx, ua_type); 1025 mtx_unlock(&lun->lun_lock); 1026 } 1027} 1028 1029static int 1030ctl_ha_state_sysctl(SYSCTL_HANDLER_ARGS) 1031{ 1032 struct ctl_softc *softc = (struct ctl_softc *)arg1; 1033 struct ctl_lun *lun; 1034 int error, value; 1035 1036 if (softc->flags & CTL_FLAG_ACTIVE_SHELF) 1037 value = 0; 1038 else 1039 value = 1; 1040 1041 error = sysctl_handle_int(oidp, &value, 0, req); 1042 if ((error != 0) || (req->newptr == NULL)) 1043 return (error); 1044 1045 mtx_lock(&softc->ctl_lock); 1046 if (value == 0) 1047 softc->flags |= CTL_FLAG_ACTIVE_SHELF; 1048 else 1049 softc->flags &= ~CTL_FLAG_ACTIVE_SHELF; 1050 STAILQ_FOREACH(lun, &softc->lun_list, links) { 1051 mtx_lock(&lun->lun_lock); 1052 ctl_est_ua_all(lun, -1, CTL_UA_ASYM_ACC_CHANGE); 1053 mtx_unlock(&lun->lun_lock); 1054 } 1055 mtx_unlock(&softc->ctl_lock); 1056 return (0); 1057} 1058 1059static int 1060ctl_init(void) 1061{ 1062 struct ctl_softc *softc; 1063 void *other_pool; 1064 int i, error, retval; 1065 //int isc_retval; 1066 1067 retval = 0; 1068 ctl_pause_rtr = 0; 1069 rcv_sync_msg = 0; 1070 1071 control_softc = malloc(sizeof(*control_softc), M_DEVBUF, 1072 M_WAITOK | M_ZERO); 1073 softc = control_softc; 1074 1075 softc->dev = make_dev(&ctl_cdevsw, 0, UID_ROOT, GID_OPERATOR, 0600, 1076 "cam/ctl"); 1077 1078 softc->dev->si_drv1 = softc; 1079 1080 /* 1081 * By default, return a "bad LUN" peripheral qualifier for unknown 1082 * LUNs. The user can override this default using the tunable or 1083 * sysctl. See the comment in ctl_inquiry_std() for more details. 1084 */ 1085 softc->inquiry_pq_no_lun = 1; 1086 TUNABLE_INT_FETCH("kern.cam.ctl.inquiry_pq_no_lun", 1087 &softc->inquiry_pq_no_lun); 1088 sysctl_ctx_init(&softc->sysctl_ctx); 1089 softc->sysctl_tree = SYSCTL_ADD_NODE(&softc->sysctl_ctx, 1090 SYSCTL_STATIC_CHILDREN(_kern_cam), OID_AUTO, "ctl", 1091 CTLFLAG_RD, 0, "CAM Target Layer"); 1092 1093 if (softc->sysctl_tree == NULL) { 1094 printf("%s: unable to allocate sysctl tree\n", __func__); 1095 destroy_dev(softc->dev); 1096 free(control_softc, M_DEVBUF); 1097 control_softc = NULL; 1098 return (ENOMEM); 1099 } 1100 1101 SYSCTL_ADD_INT(&softc->sysctl_ctx, 1102 SYSCTL_CHILDREN(softc->sysctl_tree), OID_AUTO, 1103 "inquiry_pq_no_lun", CTLFLAG_RW, 1104 &softc->inquiry_pq_no_lun, 0, 1105 "Report no lun possible for invalid LUNs"); 1106 1107 mtx_init(&softc->ctl_lock, "CTL mutex", NULL, MTX_DEF); 1108 softc->io_zone = uma_zcreate("CTL IO", sizeof(union ctl_io), 1109 NULL, NULL, NULL, NULL, UMA_ALIGN_PTR, 0); 1110 softc->open_count = 0; 1111 1112 /* 1113 * Default to actually sending a SYNCHRONIZE CACHE command down to 1114 * the drive. 1115 */ 1116 softc->flags = CTL_FLAG_REAL_SYNC; 1117 1118 /* 1119 * In Copan's HA scheme, the "master" and "slave" roles are 1120 * figured out through the slot the controller is in. Although it 1121 * is an active/active system, someone has to be in charge. 1122 */ 1123 SYSCTL_ADD_INT(&softc->sysctl_ctx, SYSCTL_CHILDREN(softc->sysctl_tree), 1124 OID_AUTO, "ha_id", CTLFLAG_RDTUN, &softc->ha_id, 0, 1125 "HA head ID (0 - no HA)"); 1126 if (softc->ha_id == 0) { 1127 softc->flags |= CTL_FLAG_ACTIVE_SHELF; 1128 softc->is_single = 1; 1129 softc->port_offset = 0; 1130 } else 1131 softc->port_offset = (softc->ha_id - 1) * CTL_MAX_PORTS; 1132 softc->persis_offset = softc->port_offset * CTL_MAX_INIT_PER_PORT; 1133 1134 STAILQ_INIT(&softc->lun_list); 1135 STAILQ_INIT(&softc->pending_lun_queue); 1136 STAILQ_INIT(&softc->fe_list); 1137 STAILQ_INIT(&softc->port_list); 1138 STAILQ_INIT(&softc->be_list); 1139 ctl_tpc_init(softc); 1140 1141 if (ctl_pool_create(softc, "othersc", CTL_POOL_ENTRIES_OTHER_SC, 1142 &other_pool) != 0) 1143 { 1144 printf("ctl: can't allocate %d entry other SC pool, " 1145 "exiting\n", CTL_POOL_ENTRIES_OTHER_SC); 1146 return (ENOMEM); 1147 } 1148 softc->othersc_pool = other_pool; 1149 1150 if (worker_threads <= 0) 1151 worker_threads = max(1, mp_ncpus / 4); 1152 if (worker_threads > CTL_MAX_THREADS) 1153 worker_threads = CTL_MAX_THREADS; 1154 1155 for (i = 0; i < worker_threads; i++) { 1156 struct ctl_thread *thr = &softc->threads[i]; 1157 1158 mtx_init(&thr->queue_lock, "CTL queue mutex", NULL, MTX_DEF); 1159 thr->ctl_softc = softc; 1160 STAILQ_INIT(&thr->incoming_queue); 1161 STAILQ_INIT(&thr->rtr_queue); 1162 STAILQ_INIT(&thr->done_queue); 1163 STAILQ_INIT(&thr->isc_queue); 1164 1165 error = kproc_kthread_add(ctl_work_thread, thr, 1166 &softc->ctl_proc, &thr->thread, 0, 0, "ctl", "work%d", i); 1167 if (error != 0) { 1168 printf("error creating CTL work thread!\n"); 1169 ctl_pool_free(other_pool); 1170 return (error); 1171 } 1172 } 1173 error = kproc_kthread_add(ctl_lun_thread, softc, 1174 &softc->ctl_proc, NULL, 0, 0, "ctl", "lun"); 1175 if (error != 0) { 1176 printf("error creating CTL lun thread!\n"); 1177 ctl_pool_free(other_pool); 1178 return (error); 1179 } 1180 error = kproc_kthread_add(ctl_thresh_thread, softc, 1181 &softc->ctl_proc, NULL, 0, 0, "ctl", "thresh"); 1182 if (error != 0) { 1183 printf("error creating CTL threshold thread!\n"); 1184 ctl_pool_free(other_pool); 1185 return (error); 1186 } 1187 1188 SYSCTL_ADD_PROC(&softc->sysctl_ctx,SYSCTL_CHILDREN(softc->sysctl_tree), 1189 OID_AUTO, "ha_state", CTLTYPE_INT | CTLFLAG_RWTUN, 1190 softc, 0, ctl_ha_state_sysctl, "I", "HA state for this head"); 1191 return (0); 1192} 1193 1194void 1195ctl_shutdown(void) 1196{ 1197 struct ctl_softc *softc; 1198 struct ctl_lun *lun, *next_lun; 1199 1200 softc = (struct ctl_softc *)control_softc; 1201 1202 mtx_lock(&softc->ctl_lock); 1203 1204 /* 1205 * Free up each LUN. 1206 */ 1207 for (lun = STAILQ_FIRST(&softc->lun_list); lun != NULL; lun = next_lun){ 1208 next_lun = STAILQ_NEXT(lun, links); 1209 ctl_free_lun(lun); 1210 } 1211 1212 mtx_unlock(&softc->ctl_lock); 1213 1214#if 0 1215 ctl_shutdown_thread(softc->work_thread); 1216 mtx_destroy(&softc->queue_lock); 1217#endif 1218 1219 ctl_tpc_shutdown(softc); 1220 uma_zdestroy(softc->io_zone); 1221 mtx_destroy(&softc->ctl_lock); 1222 1223 destroy_dev(softc->dev); 1224 1225 sysctl_ctx_free(&softc->sysctl_ctx); 1226 1227 free(control_softc, M_DEVBUF); 1228 control_softc = NULL; 1229} 1230 1231static int 1232ctl_module_event_handler(module_t mod, int what, void *arg) 1233{ 1234 1235 switch (what) { 1236 case MOD_LOAD: 1237 return (ctl_init()); 1238 case MOD_UNLOAD: 1239 return (EBUSY); 1240 default: 1241 return (EOPNOTSUPP); 1242 } 1243} 1244 1245/* 1246 * XXX KDM should we do some access checks here? Bump a reference count to 1247 * prevent a CTL module from being unloaded while someone has it open? 1248 */ 1249static int 1250ctl_open(struct cdev *dev, int flags, int fmt, struct thread *td) 1251{ 1252 return (0); 1253} 1254 1255static int 1256ctl_close(struct cdev *dev, int flags, int fmt, struct thread *td) 1257{ 1258 return (0); 1259} 1260 1261int 1262ctl_port_enable(ctl_port_type port_type) 1263{ 1264 struct ctl_softc *softc = control_softc; 1265 struct ctl_port *port; 1266 1267 if (softc->is_single == 0) { 1268 union ctl_ha_msg msg_info; 1269 int isc_retval; 1270 1271#if 0 1272 printf("%s: HA mode, synchronizing frontend enable\n", 1273 __func__); 1274#endif 1275 msg_info.hdr.msg_type = CTL_MSG_SYNC_FE; 1276 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 1277 sizeof(msg_info), 1 )) > CTL_HA_STATUS_SUCCESS) { 1278 printf("Sync msg send error retval %d\n", isc_retval); 1279 } 1280 if (!rcv_sync_msg) { 1281 isc_retval=ctl_ha_msg_recv(CTL_HA_CHAN_CTL, &msg_info, 1282 sizeof(msg_info), 1); 1283 } 1284#if 0 1285 printf("CTL:Frontend Enable\n"); 1286 } else { 1287 printf("%s: single mode, skipping frontend synchronization\n", 1288 __func__); 1289#endif 1290 } 1291 1292 STAILQ_FOREACH(port, &softc->port_list, links) { 1293 if (port_type & port->port_type) 1294 { 1295#if 0 1296 printf("port %d\n", port->targ_port); 1297#endif 1298 ctl_port_online(port); 1299 } 1300 } 1301 1302 return (0); 1303} 1304 1305int 1306ctl_port_disable(ctl_port_type port_type) 1307{ 1308 struct ctl_softc *softc; 1309 struct ctl_port *port; 1310 1311 softc = control_softc; 1312 1313 STAILQ_FOREACH(port, &softc->port_list, links) { 1314 if (port_type & port->port_type) 1315 ctl_port_offline(port); 1316 } 1317 1318 return (0); 1319} 1320 1321/* 1322 * Returns 0 for success, 1 for failure. 1323 * Currently the only failure mode is if there aren't enough entries 1324 * allocated. So, in case of a failure, look at num_entries_dropped, 1325 * reallocate and try again. 1326 */ 1327int 1328ctl_port_list(struct ctl_port_entry *entries, int num_entries_alloced, 1329 int *num_entries_filled, int *num_entries_dropped, 1330 ctl_port_type port_type, int no_virtual) 1331{ 1332 struct ctl_softc *softc; 1333 struct ctl_port *port; 1334 int entries_dropped, entries_filled; 1335 int retval; 1336 int i; 1337 1338 softc = control_softc; 1339 1340 retval = 0; 1341 entries_filled = 0; 1342 entries_dropped = 0; 1343 1344 i = 0; 1345 mtx_lock(&softc->ctl_lock); 1346 STAILQ_FOREACH(port, &softc->port_list, links) { 1347 struct ctl_port_entry *entry; 1348 1349 if ((port->port_type & port_type) == 0) 1350 continue; 1351 1352 if ((no_virtual != 0) 1353 && (port->virtual_port != 0)) 1354 continue; 1355 1356 if (entries_filled >= num_entries_alloced) { 1357 entries_dropped++; 1358 continue; 1359 } 1360 entry = &entries[i]; 1361 1362 entry->port_type = port->port_type; 1363 strlcpy(entry->port_name, port->port_name, 1364 sizeof(entry->port_name)); 1365 entry->physical_port = port->physical_port; 1366 entry->virtual_port = port->virtual_port; 1367 entry->wwnn = port->wwnn; 1368 entry->wwpn = port->wwpn; 1369 1370 i++; 1371 entries_filled++; 1372 } 1373 1374 mtx_unlock(&softc->ctl_lock); 1375 1376 if (entries_dropped > 0) 1377 retval = 1; 1378 1379 *num_entries_dropped = entries_dropped; 1380 *num_entries_filled = entries_filled; 1381 1382 return (retval); 1383} 1384 1385/* 1386 * Remove an initiator by port number and initiator ID. 1387 * Returns 0 for success, -1 for failure. 1388 */ 1389int 1390ctl_remove_initiator(struct ctl_port *port, int iid) 1391{ 1392 struct ctl_softc *softc = control_softc; 1393 1394 mtx_assert(&softc->ctl_lock, MA_NOTOWNED); 1395 1396 if (iid > CTL_MAX_INIT_PER_PORT) { 1397 printf("%s: initiator ID %u > maximun %u!\n", 1398 __func__, iid, CTL_MAX_INIT_PER_PORT); 1399 return (-1); 1400 } 1401 1402 mtx_lock(&softc->ctl_lock); 1403 port->wwpn_iid[iid].in_use--; 1404 port->wwpn_iid[iid].last_use = time_uptime; 1405 mtx_unlock(&softc->ctl_lock); 1406 1407 return (0); 1408} 1409 1410/* 1411 * Add an initiator to the initiator map. 1412 * Returns iid for success, < 0 for failure. 1413 */ 1414int 1415ctl_add_initiator(struct ctl_port *port, int iid, uint64_t wwpn, char *name) 1416{ 1417 struct ctl_softc *softc = control_softc; 1418 time_t best_time; 1419 int i, best; 1420 1421 mtx_assert(&softc->ctl_lock, MA_NOTOWNED); 1422 1423 if (iid >= CTL_MAX_INIT_PER_PORT) { 1424 printf("%s: WWPN %#jx initiator ID %u > maximum %u!\n", 1425 __func__, wwpn, iid, CTL_MAX_INIT_PER_PORT); 1426 free(name, M_CTL); 1427 return (-1); 1428 } 1429 1430 mtx_lock(&softc->ctl_lock); 1431 1432 if (iid < 0 && (wwpn != 0 || name != NULL)) { 1433 for (i = 0; i < CTL_MAX_INIT_PER_PORT; i++) { 1434 if (wwpn != 0 && wwpn == port->wwpn_iid[i].wwpn) { 1435 iid = i; 1436 break; 1437 } 1438 if (name != NULL && port->wwpn_iid[i].name != NULL && 1439 strcmp(name, port->wwpn_iid[i].name) == 0) { 1440 iid = i; 1441 break; 1442 } 1443 } 1444 } 1445 1446 if (iid < 0) { 1447 for (i = 0; i < CTL_MAX_INIT_PER_PORT; i++) { 1448 if (port->wwpn_iid[i].in_use == 0 && 1449 port->wwpn_iid[i].wwpn == 0 && 1450 port->wwpn_iid[i].name == NULL) { 1451 iid = i; 1452 break; 1453 } 1454 } 1455 } 1456 1457 if (iid < 0) { 1458 best = -1; 1459 best_time = INT32_MAX; 1460 for (i = 0; i < CTL_MAX_INIT_PER_PORT; i++) { 1461 if (port->wwpn_iid[i].in_use == 0) { 1462 if (port->wwpn_iid[i].last_use < best_time) { 1463 best = i; 1464 best_time = port->wwpn_iid[i].last_use; 1465 } 1466 } 1467 } 1468 iid = best; 1469 } 1470 1471 if (iid < 0) { 1472 mtx_unlock(&softc->ctl_lock); 1473 free(name, M_CTL); 1474 return (-2); 1475 } 1476 1477 if (port->wwpn_iid[iid].in_use > 0 && (wwpn != 0 || name != NULL)) { 1478 /* 1479 * This is not an error yet. 1480 */ 1481 if (wwpn != 0 && wwpn == port->wwpn_iid[iid].wwpn) { 1482#if 0 1483 printf("%s: port %d iid %u WWPN %#jx arrived" 1484 " again\n", __func__, port->targ_port, 1485 iid, (uintmax_t)wwpn); 1486#endif 1487 goto take; 1488 } 1489 if (name != NULL && port->wwpn_iid[iid].name != NULL && 1490 strcmp(name, port->wwpn_iid[iid].name) == 0) { 1491#if 0 1492 printf("%s: port %d iid %u name '%s' arrived" 1493 " again\n", __func__, port->targ_port, 1494 iid, name); 1495#endif 1496 goto take; 1497 } 1498 1499 /* 1500 * This is an error, but what do we do about it? The 1501 * driver is telling us we have a new WWPN for this 1502 * initiator ID, so we pretty much need to use it. 1503 */ 1504 printf("%s: port %d iid %u WWPN %#jx '%s' arrived," 1505 " but WWPN %#jx '%s' is still at that address\n", 1506 __func__, port->targ_port, iid, wwpn, name, 1507 (uintmax_t)port->wwpn_iid[iid].wwpn, 1508 port->wwpn_iid[iid].name); 1509 1510 /* 1511 * XXX KDM clear have_ca and ua_pending on each LUN for 1512 * this initiator. 1513 */ 1514 } 1515take: 1516 free(port->wwpn_iid[iid].name, M_CTL); 1517 port->wwpn_iid[iid].name = name; 1518 port->wwpn_iid[iid].wwpn = wwpn; 1519 port->wwpn_iid[iid].in_use++; 1520 mtx_unlock(&softc->ctl_lock); 1521 1522 return (iid); 1523} 1524 1525static int 1526ctl_create_iid(struct ctl_port *port, int iid, uint8_t *buf) 1527{ 1528 int len; 1529 1530 switch (port->port_type) { 1531 case CTL_PORT_FC: 1532 { 1533 struct scsi_transportid_fcp *id = 1534 (struct scsi_transportid_fcp *)buf; 1535 if (port->wwpn_iid[iid].wwpn == 0) 1536 return (0); 1537 memset(id, 0, sizeof(*id)); 1538 id->format_protocol = SCSI_PROTO_FC; 1539 scsi_u64to8b(port->wwpn_iid[iid].wwpn, id->n_port_name); 1540 return (sizeof(*id)); 1541 } 1542 case CTL_PORT_ISCSI: 1543 { 1544 struct scsi_transportid_iscsi_port *id = 1545 (struct scsi_transportid_iscsi_port *)buf; 1546 if (port->wwpn_iid[iid].name == NULL) 1547 return (0); 1548 memset(id, 0, 256); 1549 id->format_protocol = SCSI_TRN_ISCSI_FORMAT_PORT | 1550 SCSI_PROTO_ISCSI; 1551 len = strlcpy(id->iscsi_name, port->wwpn_iid[iid].name, 252) + 1; 1552 len = roundup2(min(len, 252), 4); 1553 scsi_ulto2b(len, id->additional_length); 1554 return (sizeof(*id) + len); 1555 } 1556 case CTL_PORT_SAS: 1557 { 1558 struct scsi_transportid_sas *id = 1559 (struct scsi_transportid_sas *)buf; 1560 if (port->wwpn_iid[iid].wwpn == 0) 1561 return (0); 1562 memset(id, 0, sizeof(*id)); 1563 id->format_protocol = SCSI_PROTO_SAS; 1564 scsi_u64to8b(port->wwpn_iid[iid].wwpn, id->sas_address); 1565 return (sizeof(*id)); 1566 } 1567 default: 1568 { 1569 struct scsi_transportid_spi *id = 1570 (struct scsi_transportid_spi *)buf; 1571 memset(id, 0, sizeof(*id)); 1572 id->format_protocol = SCSI_PROTO_SPI; 1573 scsi_ulto2b(iid, id->scsi_addr); 1574 scsi_ulto2b(port->targ_port, id->rel_trgt_port_id); 1575 return (sizeof(*id)); 1576 } 1577 } 1578} 1579 1580/* 1581 * Serialize a command that went down the "wrong" side, and so was sent to 1582 * this controller for execution. The logic is a little different than the 1583 * standard case in ctl_scsiio_precheck(). Errors in this case need to get 1584 * sent back to the other side, but in the success case, we execute the 1585 * command on this side (XFER mode) or tell the other side to execute it 1586 * (SER_ONLY mode). 1587 */ 1588static int 1589ctl_serialize_other_sc_cmd(struct ctl_scsiio *ctsio) 1590{ 1591 struct ctl_softc *softc; 1592 union ctl_ha_msg msg_info; 1593 struct ctl_lun *lun; 1594 int retval = 0; 1595 uint32_t targ_lun; 1596 1597 softc = control_softc; 1598 1599 targ_lun = ctsio->io_hdr.nexus.targ_mapped_lun; 1600 lun = softc->ctl_luns[targ_lun]; 1601 if (lun==NULL) 1602 { 1603 /* 1604 * Why isn't LUN defined? The other side wouldn't 1605 * send a cmd if the LUN is undefined. 1606 */ 1607 printf("%s: Bad JUJU!, LUN is NULL!\n", __func__); 1608 1609 /* "Logical unit not supported" */ 1610 ctl_set_sense_data(&msg_info.scsi.sense_data, 1611 lun, 1612 /*sense_format*/SSD_TYPE_NONE, 1613 /*current_error*/ 1, 1614 /*sense_key*/ SSD_KEY_ILLEGAL_REQUEST, 1615 /*asc*/ 0x25, 1616 /*ascq*/ 0x00, 1617 SSD_ELEM_NONE); 1618 1619 msg_info.scsi.sense_len = SSD_FULL_SIZE; 1620 msg_info.scsi.scsi_status = SCSI_STATUS_CHECK_COND; 1621 msg_info.hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 1622 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 1623 msg_info.hdr.serializing_sc = NULL; 1624 msg_info.hdr.msg_type = CTL_MSG_BAD_JUJU; 1625 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 1626 sizeof(msg_info), 0 ) > CTL_HA_STATUS_SUCCESS) { 1627 } 1628 return(1); 1629 1630 } 1631 1632 mtx_lock(&lun->lun_lock); 1633 TAILQ_INSERT_TAIL(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 1634 1635 switch (ctl_check_ooa(lun, (union ctl_io *)ctsio, 1636 (union ctl_io *)TAILQ_PREV(&ctsio->io_hdr, ctl_ooaq, 1637 ooa_links))) { 1638 case CTL_ACTION_BLOCK: 1639 ctsio->io_hdr.flags |= CTL_FLAG_BLOCKED; 1640 TAILQ_INSERT_TAIL(&lun->blocked_queue, &ctsio->io_hdr, 1641 blocked_links); 1642 break; 1643 case CTL_ACTION_PASS: 1644 case CTL_ACTION_SKIP: 1645 if (softc->ha_mode == CTL_HA_MODE_XFER) { 1646 ctsio->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 1647 ctl_enqueue_rtr((union ctl_io *)ctsio); 1648 } else { 1649 1650 /* send msg back to other side */ 1651 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 1652 msg_info.hdr.serializing_sc = (union ctl_io *)ctsio; 1653 msg_info.hdr.msg_type = CTL_MSG_R2R; 1654#if 0 1655 printf("2. pOrig %x\n", (int)msg_info.hdr.original_sc); 1656#endif 1657 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 1658 sizeof(msg_info), 0 ) > CTL_HA_STATUS_SUCCESS) { 1659 } 1660 } 1661 break; 1662 case CTL_ACTION_OVERLAP: 1663 /* OVERLAPPED COMMANDS ATTEMPTED */ 1664 ctl_set_sense_data(&msg_info.scsi.sense_data, 1665 lun, 1666 /*sense_format*/SSD_TYPE_NONE, 1667 /*current_error*/ 1, 1668 /*sense_key*/ SSD_KEY_ILLEGAL_REQUEST, 1669 /*asc*/ 0x4E, 1670 /*ascq*/ 0x00, 1671 SSD_ELEM_NONE); 1672 1673 msg_info.scsi.sense_len = SSD_FULL_SIZE; 1674 msg_info.scsi.scsi_status = SCSI_STATUS_CHECK_COND; 1675 msg_info.hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 1676 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 1677 msg_info.hdr.serializing_sc = NULL; 1678 msg_info.hdr.msg_type = CTL_MSG_BAD_JUJU; 1679#if 0 1680 printf("BAD JUJU:Major Bummer Overlap\n"); 1681#endif 1682 TAILQ_REMOVE(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 1683 retval = 1; 1684 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 1685 sizeof(msg_info), 0 ) > CTL_HA_STATUS_SUCCESS) { 1686 } 1687 break; 1688 case CTL_ACTION_OVERLAP_TAG: 1689 /* TAGGED OVERLAPPED COMMANDS (NN = QUEUE TAG) */ 1690 ctl_set_sense_data(&msg_info.scsi.sense_data, 1691 lun, 1692 /*sense_format*/SSD_TYPE_NONE, 1693 /*current_error*/ 1, 1694 /*sense_key*/ SSD_KEY_ILLEGAL_REQUEST, 1695 /*asc*/ 0x4D, 1696 /*ascq*/ ctsio->tag_num & 0xff, 1697 SSD_ELEM_NONE); 1698 1699 msg_info.scsi.sense_len = SSD_FULL_SIZE; 1700 msg_info.scsi.scsi_status = SCSI_STATUS_CHECK_COND; 1701 msg_info.hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 1702 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 1703 msg_info.hdr.serializing_sc = NULL; 1704 msg_info.hdr.msg_type = CTL_MSG_BAD_JUJU; 1705#if 0 1706 printf("BAD JUJU:Major Bummer Overlap Tag\n"); 1707#endif 1708 TAILQ_REMOVE(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 1709 retval = 1; 1710 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 1711 sizeof(msg_info), 0 ) > CTL_HA_STATUS_SUCCESS) { 1712 } 1713 break; 1714 case CTL_ACTION_ERROR: 1715 default: 1716 /* "Internal target failure" */ 1717 ctl_set_sense_data(&msg_info.scsi.sense_data, 1718 lun, 1719 /*sense_format*/SSD_TYPE_NONE, 1720 /*current_error*/ 1, 1721 /*sense_key*/ SSD_KEY_HARDWARE_ERROR, 1722 /*asc*/ 0x44, 1723 /*ascq*/ 0x00, 1724 SSD_ELEM_NONE); 1725 1726 msg_info.scsi.sense_len = SSD_FULL_SIZE; 1727 msg_info.scsi.scsi_status = SCSI_STATUS_CHECK_COND; 1728 msg_info.hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 1729 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 1730 msg_info.hdr.serializing_sc = NULL; 1731 msg_info.hdr.msg_type = CTL_MSG_BAD_JUJU; 1732#if 0 1733 printf("BAD JUJU:Major Bummer HW Error\n"); 1734#endif 1735 TAILQ_REMOVE(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 1736 retval = 1; 1737 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 1738 sizeof(msg_info), 0 ) > CTL_HA_STATUS_SUCCESS) { 1739 } 1740 break; 1741 } 1742 mtx_unlock(&lun->lun_lock); 1743 return (retval); 1744} 1745 1746/* 1747 * Returns 0 for success, errno for failure. 1748 */ 1749static int 1750ctl_ioctl_fill_ooa(struct ctl_lun *lun, uint32_t *cur_fill_num, 1751 struct ctl_ooa *ooa_hdr, struct ctl_ooa_entry *kern_entries) 1752{ 1753 union ctl_io *io; 1754 int retval; 1755 1756 retval = 0; 1757 1758 mtx_lock(&lun->lun_lock); 1759 for (io = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); (io != NULL); 1760 (*cur_fill_num)++, io = (union ctl_io *)TAILQ_NEXT(&io->io_hdr, 1761 ooa_links)) { 1762 struct ctl_ooa_entry *entry; 1763 1764 /* 1765 * If we've got more than we can fit, just count the 1766 * remaining entries. 1767 */ 1768 if (*cur_fill_num >= ooa_hdr->alloc_num) 1769 continue; 1770 1771 entry = &kern_entries[*cur_fill_num]; 1772 1773 entry->tag_num = io->scsiio.tag_num; 1774 entry->lun_num = lun->lun; 1775#ifdef CTL_TIME_IO 1776 entry->start_bt = io->io_hdr.start_bt; 1777#endif 1778 bcopy(io->scsiio.cdb, entry->cdb, io->scsiio.cdb_len); 1779 entry->cdb_len = io->scsiio.cdb_len; 1780 if (io->io_hdr.flags & CTL_FLAG_BLOCKED) 1781 entry->cmd_flags |= CTL_OOACMD_FLAG_BLOCKED; 1782 1783 if (io->io_hdr.flags & CTL_FLAG_DMA_INPROG) 1784 entry->cmd_flags |= CTL_OOACMD_FLAG_DMA; 1785 1786 if (io->io_hdr.flags & CTL_FLAG_ABORT) 1787 entry->cmd_flags |= CTL_OOACMD_FLAG_ABORT; 1788 1789 if (io->io_hdr.flags & CTL_FLAG_IS_WAS_ON_RTR) 1790 entry->cmd_flags |= CTL_OOACMD_FLAG_RTR; 1791 1792 if (io->io_hdr.flags & CTL_FLAG_DMA_QUEUED) 1793 entry->cmd_flags |= CTL_OOACMD_FLAG_DMA_QUEUED; 1794 } 1795 mtx_unlock(&lun->lun_lock); 1796 1797 return (retval); 1798} 1799 1800static void * 1801ctl_copyin_alloc(void *user_addr, int len, char *error_str, 1802 size_t error_str_len) 1803{ 1804 void *kptr; 1805 1806 kptr = malloc(len, M_CTL, M_WAITOK | M_ZERO); 1807 1808 if (copyin(user_addr, kptr, len) != 0) { 1809 snprintf(error_str, error_str_len, "Error copying %d bytes " 1810 "from user address %p to kernel address %p", len, 1811 user_addr, kptr); 1812 free(kptr, M_CTL); 1813 return (NULL); 1814 } 1815 1816 return (kptr); 1817} 1818 1819static void 1820ctl_free_args(int num_args, struct ctl_be_arg *args) 1821{ 1822 int i; 1823 1824 if (args == NULL) 1825 return; 1826 1827 for (i = 0; i < num_args; i++) { 1828 free(args[i].kname, M_CTL); 1829 free(args[i].kvalue, M_CTL); 1830 } 1831 1832 free(args, M_CTL); 1833} 1834 1835static struct ctl_be_arg * 1836ctl_copyin_args(int num_args, struct ctl_be_arg *uargs, 1837 char *error_str, size_t error_str_len) 1838{ 1839 struct ctl_be_arg *args; 1840 int i; 1841 1842 args = ctl_copyin_alloc(uargs, num_args * sizeof(*args), 1843 error_str, error_str_len); 1844 1845 if (args == NULL) 1846 goto bailout; 1847 1848 for (i = 0; i < num_args; i++) { 1849 args[i].kname = NULL; 1850 args[i].kvalue = NULL; 1851 } 1852 1853 for (i = 0; i < num_args; i++) { 1854 uint8_t *tmpptr; 1855 1856 args[i].kname = ctl_copyin_alloc(args[i].name, 1857 args[i].namelen, error_str, error_str_len); 1858 if (args[i].kname == NULL) 1859 goto bailout; 1860 1861 if (args[i].kname[args[i].namelen - 1] != '\0') { 1862 snprintf(error_str, error_str_len, "Argument %d " 1863 "name is not NUL-terminated", i); 1864 goto bailout; 1865 } 1866 1867 if (args[i].flags & CTL_BEARG_RD) { 1868 tmpptr = ctl_copyin_alloc(args[i].value, 1869 args[i].vallen, error_str, error_str_len); 1870 if (tmpptr == NULL) 1871 goto bailout; 1872 if ((args[i].flags & CTL_BEARG_ASCII) 1873 && (tmpptr[args[i].vallen - 1] != '\0')) { 1874 snprintf(error_str, error_str_len, "Argument " 1875 "%d value is not NUL-terminated", i); 1876 goto bailout; 1877 } 1878 args[i].kvalue = tmpptr; 1879 } else { 1880 args[i].kvalue = malloc(args[i].vallen, 1881 M_CTL, M_WAITOK | M_ZERO); 1882 } 1883 } 1884 1885 return (args); 1886bailout: 1887 1888 ctl_free_args(num_args, args); 1889 1890 return (NULL); 1891} 1892 1893static void 1894ctl_copyout_args(int num_args, struct ctl_be_arg *args) 1895{ 1896 int i; 1897 1898 for (i = 0; i < num_args; i++) { 1899 if (args[i].flags & CTL_BEARG_WR) 1900 copyout(args[i].kvalue, args[i].value, args[i].vallen); 1901 } 1902} 1903 1904/* 1905 * Escape characters that are illegal or not recommended in XML. 1906 */ 1907int 1908ctl_sbuf_printf_esc(struct sbuf *sb, char *str, int size) 1909{ 1910 char *end = str + size; 1911 int retval; 1912 1913 retval = 0; 1914 1915 for (; *str && str < end; str++) { 1916 switch (*str) { 1917 case '&': 1918 retval = sbuf_printf(sb, "&"); 1919 break; 1920 case '>': 1921 retval = sbuf_printf(sb, ">"); 1922 break; 1923 case '<': 1924 retval = sbuf_printf(sb, "<"); 1925 break; 1926 default: 1927 retval = sbuf_putc(sb, *str); 1928 break; 1929 } 1930 1931 if (retval != 0) 1932 break; 1933 1934 } 1935 1936 return (retval); 1937} 1938 1939static void 1940ctl_id_sbuf(struct ctl_devid *id, struct sbuf *sb) 1941{ 1942 struct scsi_vpd_id_descriptor *desc; 1943 int i; 1944 1945 if (id == NULL || id->len < 4) 1946 return; 1947 desc = (struct scsi_vpd_id_descriptor *)id->data; 1948 switch (desc->id_type & SVPD_ID_TYPE_MASK) { 1949 case SVPD_ID_TYPE_T10: 1950 sbuf_printf(sb, "t10."); 1951 break; 1952 case SVPD_ID_TYPE_EUI64: 1953 sbuf_printf(sb, "eui."); 1954 break; 1955 case SVPD_ID_TYPE_NAA: 1956 sbuf_printf(sb, "naa."); 1957 break; 1958 case SVPD_ID_TYPE_SCSI_NAME: 1959 break; 1960 } 1961 switch (desc->proto_codeset & SVPD_ID_CODESET_MASK) { 1962 case SVPD_ID_CODESET_BINARY: 1963 for (i = 0; i < desc->length; i++) 1964 sbuf_printf(sb, "%02x", desc->identifier[i]); 1965 break; 1966 case SVPD_ID_CODESET_ASCII: 1967 sbuf_printf(sb, "%.*s", (int)desc->length, 1968 (char *)desc->identifier); 1969 break; 1970 case SVPD_ID_CODESET_UTF8: 1971 sbuf_printf(sb, "%s", (char *)desc->identifier); 1972 break; 1973 } 1974} 1975 1976static int 1977ctl_ioctl(struct cdev *dev, u_long cmd, caddr_t addr, int flag, 1978 struct thread *td) 1979{ 1980 struct ctl_softc *softc; 1981 int retval; 1982 1983 softc = control_softc; 1984 1985 retval = 0; 1986 1987 switch (cmd) { 1988 case CTL_IO: 1989 retval = ctl_ioctl_io(dev, cmd, addr, flag, td); 1990 break; 1991 case CTL_ENABLE_PORT: 1992 case CTL_DISABLE_PORT: 1993 case CTL_SET_PORT_WWNS: { 1994 struct ctl_port *port; 1995 struct ctl_port_entry *entry; 1996 1997 entry = (struct ctl_port_entry *)addr; 1998 1999 mtx_lock(&softc->ctl_lock); 2000 STAILQ_FOREACH(port, &softc->port_list, links) { 2001 int action, done; 2002 2003 action = 0; 2004 done = 0; 2005 2006 if ((entry->port_type == CTL_PORT_NONE) 2007 && (entry->targ_port == port->targ_port)) { 2008 /* 2009 * If the user only wants to enable or 2010 * disable or set WWNs on a specific port, 2011 * do the operation and we're done. 2012 */ 2013 action = 1; 2014 done = 1; 2015 } else if (entry->port_type & port->port_type) { 2016 /* 2017 * Compare the user's type mask with the 2018 * particular frontend type to see if we 2019 * have a match. 2020 */ 2021 action = 1; 2022 done = 0; 2023 2024 /* 2025 * Make sure the user isn't trying to set 2026 * WWNs on multiple ports at the same time. 2027 */ 2028 if (cmd == CTL_SET_PORT_WWNS) { 2029 printf("%s: Can't set WWNs on " 2030 "multiple ports\n", __func__); 2031 retval = EINVAL; 2032 break; 2033 } 2034 } 2035 if (action != 0) { 2036 /* 2037 * XXX KDM we have to drop the lock here, 2038 * because the online/offline operations 2039 * can potentially block. We need to 2040 * reference count the frontends so they 2041 * can't go away, 2042 */ 2043 mtx_unlock(&softc->ctl_lock); 2044 2045 if (cmd == CTL_ENABLE_PORT) { 2046 ctl_port_online(port); 2047 } else if (cmd == CTL_DISABLE_PORT) { 2048 ctl_port_offline(port); 2049 } 2050 2051 mtx_lock(&softc->ctl_lock); 2052 2053 if (cmd == CTL_SET_PORT_WWNS) 2054 ctl_port_set_wwns(port, 2055 (entry->flags & CTL_PORT_WWNN_VALID) ? 2056 1 : 0, entry->wwnn, 2057 (entry->flags & CTL_PORT_WWPN_VALID) ? 2058 1 : 0, entry->wwpn); 2059 } 2060 if (done != 0) 2061 break; 2062 } 2063 mtx_unlock(&softc->ctl_lock); 2064 break; 2065 } 2066 case CTL_GET_PORT_LIST: { 2067 struct ctl_port *port; 2068 struct ctl_port_list *list; 2069 int i; 2070 2071 list = (struct ctl_port_list *)addr; 2072 2073 if (list->alloc_len != (list->alloc_num * 2074 sizeof(struct ctl_port_entry))) { 2075 printf("%s: CTL_GET_PORT_LIST: alloc_len %u != " 2076 "alloc_num %u * sizeof(struct ctl_port_entry) " 2077 "%zu\n", __func__, list->alloc_len, 2078 list->alloc_num, sizeof(struct ctl_port_entry)); 2079 retval = EINVAL; 2080 break; 2081 } 2082 list->fill_len = 0; 2083 list->fill_num = 0; 2084 list->dropped_num = 0; 2085 i = 0; 2086 mtx_lock(&softc->ctl_lock); 2087 STAILQ_FOREACH(port, &softc->port_list, links) { 2088 struct ctl_port_entry entry, *list_entry; 2089 2090 if (list->fill_num >= list->alloc_num) { 2091 list->dropped_num++; 2092 continue; 2093 } 2094 2095 entry.port_type = port->port_type; 2096 strlcpy(entry.port_name, port->port_name, 2097 sizeof(entry.port_name)); 2098 entry.targ_port = port->targ_port; 2099 entry.physical_port = port->physical_port; 2100 entry.virtual_port = port->virtual_port; 2101 entry.wwnn = port->wwnn; 2102 entry.wwpn = port->wwpn; 2103 if (port->status & CTL_PORT_STATUS_ONLINE) 2104 entry.online = 1; 2105 else 2106 entry.online = 0; 2107 2108 list_entry = &list->entries[i]; 2109 2110 retval = copyout(&entry, list_entry, sizeof(entry)); 2111 if (retval != 0) { 2112 printf("%s: CTL_GET_PORT_LIST: copyout " 2113 "returned %d\n", __func__, retval); 2114 break; 2115 } 2116 i++; 2117 list->fill_num++; 2118 list->fill_len += sizeof(entry); 2119 } 2120 mtx_unlock(&softc->ctl_lock); 2121 2122 /* 2123 * If this is non-zero, we had a copyout fault, so there's 2124 * probably no point in attempting to set the status inside 2125 * the structure. 2126 */ 2127 if (retval != 0) 2128 break; 2129 2130 if (list->dropped_num > 0) 2131 list->status = CTL_PORT_LIST_NEED_MORE_SPACE; 2132 else 2133 list->status = CTL_PORT_LIST_OK; 2134 break; 2135 } 2136 case CTL_DUMP_OOA: { 2137 struct ctl_lun *lun; 2138 union ctl_io *io; 2139 char printbuf[128]; 2140 struct sbuf sb; 2141 2142 mtx_lock(&softc->ctl_lock); 2143 printf("Dumping OOA queues:\n"); 2144 STAILQ_FOREACH(lun, &softc->lun_list, links) { 2145 mtx_lock(&lun->lun_lock); 2146 for (io = (union ctl_io *)TAILQ_FIRST( 2147 &lun->ooa_queue); io != NULL; 2148 io = (union ctl_io *)TAILQ_NEXT(&io->io_hdr, 2149 ooa_links)) { 2150 sbuf_new(&sb, printbuf, sizeof(printbuf), 2151 SBUF_FIXEDLEN); 2152 sbuf_printf(&sb, "LUN %jd tag 0x%04x%s%s%s%s: ", 2153 (intmax_t)lun->lun, 2154 io->scsiio.tag_num, 2155 (io->io_hdr.flags & 2156 CTL_FLAG_BLOCKED) ? "" : " BLOCKED", 2157 (io->io_hdr.flags & 2158 CTL_FLAG_DMA_INPROG) ? " DMA" : "", 2159 (io->io_hdr.flags & 2160 CTL_FLAG_ABORT) ? " ABORT" : "", 2161 (io->io_hdr.flags & 2162 CTL_FLAG_IS_WAS_ON_RTR) ? " RTR" : ""); 2163 ctl_scsi_command_string(&io->scsiio, NULL, &sb); 2164 sbuf_finish(&sb); 2165 printf("%s\n", sbuf_data(&sb)); 2166 } 2167 mtx_unlock(&lun->lun_lock); 2168 } 2169 printf("OOA queues dump done\n"); 2170 mtx_unlock(&softc->ctl_lock); 2171 break; 2172 } 2173 case CTL_GET_OOA: { 2174 struct ctl_lun *lun; 2175 struct ctl_ooa *ooa_hdr; 2176 struct ctl_ooa_entry *entries; 2177 uint32_t cur_fill_num; 2178 2179 ooa_hdr = (struct ctl_ooa *)addr; 2180 2181 if ((ooa_hdr->alloc_len == 0) 2182 || (ooa_hdr->alloc_num == 0)) { 2183 printf("%s: CTL_GET_OOA: alloc len %u and alloc num %u " 2184 "must be non-zero\n", __func__, 2185 ooa_hdr->alloc_len, ooa_hdr->alloc_num); 2186 retval = EINVAL; 2187 break; 2188 } 2189 2190 if (ooa_hdr->alloc_len != (ooa_hdr->alloc_num * 2191 sizeof(struct ctl_ooa_entry))) { 2192 printf("%s: CTL_GET_OOA: alloc len %u must be alloc " 2193 "num %d * sizeof(struct ctl_ooa_entry) %zd\n", 2194 __func__, ooa_hdr->alloc_len, 2195 ooa_hdr->alloc_num,sizeof(struct ctl_ooa_entry)); 2196 retval = EINVAL; 2197 break; 2198 } 2199 2200 entries = malloc(ooa_hdr->alloc_len, M_CTL, M_WAITOK | M_ZERO); 2201 if (entries == NULL) { 2202 printf("%s: could not allocate %d bytes for OOA " 2203 "dump\n", __func__, ooa_hdr->alloc_len); 2204 retval = ENOMEM; 2205 break; 2206 } 2207 2208 mtx_lock(&softc->ctl_lock); 2209 if (((ooa_hdr->flags & CTL_OOA_FLAG_ALL_LUNS) == 0) 2210 && ((ooa_hdr->lun_num >= CTL_MAX_LUNS) 2211 || (softc->ctl_luns[ooa_hdr->lun_num] == NULL))) { 2212 mtx_unlock(&softc->ctl_lock); 2213 free(entries, M_CTL); 2214 printf("%s: CTL_GET_OOA: invalid LUN %ju\n", 2215 __func__, (uintmax_t)ooa_hdr->lun_num); 2216 retval = EINVAL; 2217 break; 2218 } 2219 2220 cur_fill_num = 0; 2221 2222 if (ooa_hdr->flags & CTL_OOA_FLAG_ALL_LUNS) { 2223 STAILQ_FOREACH(lun, &softc->lun_list, links) { 2224 retval = ctl_ioctl_fill_ooa(lun, &cur_fill_num, 2225 ooa_hdr, entries); 2226 if (retval != 0) 2227 break; 2228 } 2229 if (retval != 0) { 2230 mtx_unlock(&softc->ctl_lock); 2231 free(entries, M_CTL); 2232 break; 2233 } 2234 } else { 2235 lun = softc->ctl_luns[ooa_hdr->lun_num]; 2236 2237 retval = ctl_ioctl_fill_ooa(lun, &cur_fill_num,ooa_hdr, 2238 entries); 2239 } 2240 mtx_unlock(&softc->ctl_lock); 2241 2242 ooa_hdr->fill_num = min(cur_fill_num, ooa_hdr->alloc_num); 2243 ooa_hdr->fill_len = ooa_hdr->fill_num * 2244 sizeof(struct ctl_ooa_entry); 2245 retval = copyout(entries, ooa_hdr->entries, ooa_hdr->fill_len); 2246 if (retval != 0) { 2247 printf("%s: error copying out %d bytes for OOA dump\n", 2248 __func__, ooa_hdr->fill_len); 2249 } 2250 2251 getbintime(&ooa_hdr->cur_bt); 2252 2253 if (cur_fill_num > ooa_hdr->alloc_num) { 2254 ooa_hdr->dropped_num = cur_fill_num -ooa_hdr->alloc_num; 2255 ooa_hdr->status = CTL_OOA_NEED_MORE_SPACE; 2256 } else { 2257 ooa_hdr->dropped_num = 0; 2258 ooa_hdr->status = CTL_OOA_OK; 2259 } 2260 2261 free(entries, M_CTL); 2262 break; 2263 } 2264 case CTL_CHECK_OOA: { 2265 union ctl_io *io; 2266 struct ctl_lun *lun; 2267 struct ctl_ooa_info *ooa_info; 2268 2269 2270 ooa_info = (struct ctl_ooa_info *)addr; 2271 2272 if (ooa_info->lun_id >= CTL_MAX_LUNS) { 2273 ooa_info->status = CTL_OOA_INVALID_LUN; 2274 break; 2275 } 2276 mtx_lock(&softc->ctl_lock); 2277 lun = softc->ctl_luns[ooa_info->lun_id]; 2278 if (lun == NULL) { 2279 mtx_unlock(&softc->ctl_lock); 2280 ooa_info->status = CTL_OOA_INVALID_LUN; 2281 break; 2282 } 2283 mtx_lock(&lun->lun_lock); 2284 mtx_unlock(&softc->ctl_lock); 2285 ooa_info->num_entries = 0; 2286 for (io = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); 2287 io != NULL; io = (union ctl_io *)TAILQ_NEXT( 2288 &io->io_hdr, ooa_links)) { 2289 ooa_info->num_entries++; 2290 } 2291 mtx_unlock(&lun->lun_lock); 2292 2293 ooa_info->status = CTL_OOA_SUCCESS; 2294 2295 break; 2296 } 2297 case CTL_DELAY_IO: { 2298 struct ctl_io_delay_info *delay_info; 2299#ifdef CTL_IO_DELAY 2300 struct ctl_lun *lun; 2301#endif /* CTL_IO_DELAY */ 2302 2303 delay_info = (struct ctl_io_delay_info *)addr; 2304 2305#ifdef CTL_IO_DELAY 2306 mtx_lock(&softc->ctl_lock); 2307 2308 if ((delay_info->lun_id >= CTL_MAX_LUNS) 2309 || (softc->ctl_luns[delay_info->lun_id] == NULL)) { 2310 delay_info->status = CTL_DELAY_STATUS_INVALID_LUN; 2311 } else { 2312 lun = softc->ctl_luns[delay_info->lun_id]; 2313 mtx_lock(&lun->lun_lock); 2314 2315 delay_info->status = CTL_DELAY_STATUS_OK; 2316 2317 switch (delay_info->delay_type) { 2318 case CTL_DELAY_TYPE_CONT: 2319 break; 2320 case CTL_DELAY_TYPE_ONESHOT: 2321 break; 2322 default: 2323 delay_info->status = 2324 CTL_DELAY_STATUS_INVALID_TYPE; 2325 break; 2326 } 2327 2328 switch (delay_info->delay_loc) { 2329 case CTL_DELAY_LOC_DATAMOVE: 2330 lun->delay_info.datamove_type = 2331 delay_info->delay_type; 2332 lun->delay_info.datamove_delay = 2333 delay_info->delay_secs; 2334 break; 2335 case CTL_DELAY_LOC_DONE: 2336 lun->delay_info.done_type = 2337 delay_info->delay_type; 2338 lun->delay_info.done_delay = 2339 delay_info->delay_secs; 2340 break; 2341 default: 2342 delay_info->status = 2343 CTL_DELAY_STATUS_INVALID_LOC; 2344 break; 2345 } 2346 mtx_unlock(&lun->lun_lock); 2347 } 2348 2349 mtx_unlock(&softc->ctl_lock); 2350#else 2351 delay_info->status = CTL_DELAY_STATUS_NOT_IMPLEMENTED; 2352#endif /* CTL_IO_DELAY */ 2353 break; 2354 } 2355 case CTL_REALSYNC_SET: { 2356 int *syncstate; 2357 2358 syncstate = (int *)addr; 2359 2360 mtx_lock(&softc->ctl_lock); 2361 switch (*syncstate) { 2362 case 0: 2363 softc->flags &= ~CTL_FLAG_REAL_SYNC; 2364 break; 2365 case 1: 2366 softc->flags |= CTL_FLAG_REAL_SYNC; 2367 break; 2368 default: 2369 retval = EINVAL; 2370 break; 2371 } 2372 mtx_unlock(&softc->ctl_lock); 2373 break; 2374 } 2375 case CTL_REALSYNC_GET: { 2376 int *syncstate; 2377 2378 syncstate = (int*)addr; 2379 2380 mtx_lock(&softc->ctl_lock); 2381 if (softc->flags & CTL_FLAG_REAL_SYNC) 2382 *syncstate = 1; 2383 else 2384 *syncstate = 0; 2385 mtx_unlock(&softc->ctl_lock); 2386 2387 break; 2388 } 2389 case CTL_SETSYNC: 2390 case CTL_GETSYNC: { 2391 struct ctl_sync_info *sync_info; 2392 struct ctl_lun *lun; 2393 2394 sync_info = (struct ctl_sync_info *)addr; 2395 2396 mtx_lock(&softc->ctl_lock); 2397 lun = softc->ctl_luns[sync_info->lun_id]; 2398 if (lun == NULL) { 2399 mtx_unlock(&softc->ctl_lock); 2400 sync_info->status = CTL_GS_SYNC_NO_LUN; 2401 } 2402 /* 2403 * Get or set the sync interval. We're not bounds checking 2404 * in the set case, hopefully the user won't do something 2405 * silly. 2406 */ 2407 mtx_lock(&lun->lun_lock); 2408 mtx_unlock(&softc->ctl_lock); 2409 if (cmd == CTL_GETSYNC) 2410 sync_info->sync_interval = lun->sync_interval; 2411 else 2412 lun->sync_interval = sync_info->sync_interval; 2413 mtx_unlock(&lun->lun_lock); 2414 2415 sync_info->status = CTL_GS_SYNC_OK; 2416 2417 break; 2418 } 2419 case CTL_GETSTATS: { 2420 struct ctl_stats *stats; 2421 struct ctl_lun *lun; 2422 int i; 2423 2424 stats = (struct ctl_stats *)addr; 2425 2426 if ((sizeof(struct ctl_lun_io_stats) * softc->num_luns) > 2427 stats->alloc_len) { 2428 stats->status = CTL_SS_NEED_MORE_SPACE; 2429 stats->num_luns = softc->num_luns; 2430 break; 2431 } 2432 /* 2433 * XXX KDM no locking here. If the LUN list changes, 2434 * things can blow up. 2435 */ 2436 for (i = 0, lun = STAILQ_FIRST(&softc->lun_list); lun != NULL; 2437 i++, lun = STAILQ_NEXT(lun, links)) { 2438 retval = copyout(&lun->stats, &stats->lun_stats[i], 2439 sizeof(lun->stats)); 2440 if (retval != 0) 2441 break; 2442 } 2443 stats->num_luns = softc->num_luns; 2444 stats->fill_len = sizeof(struct ctl_lun_io_stats) * 2445 softc->num_luns; 2446 stats->status = CTL_SS_OK; 2447#ifdef CTL_TIME_IO 2448 stats->flags = CTL_STATS_FLAG_TIME_VALID; 2449#else 2450 stats->flags = CTL_STATS_FLAG_NONE; 2451#endif 2452 getnanouptime(&stats->timestamp); 2453 break; 2454 } 2455 case CTL_ERROR_INJECT: { 2456 struct ctl_error_desc *err_desc, *new_err_desc; 2457 struct ctl_lun *lun; 2458 2459 err_desc = (struct ctl_error_desc *)addr; 2460 2461 new_err_desc = malloc(sizeof(*new_err_desc), M_CTL, 2462 M_WAITOK | M_ZERO); 2463 bcopy(err_desc, new_err_desc, sizeof(*new_err_desc)); 2464 2465 mtx_lock(&softc->ctl_lock); 2466 lun = softc->ctl_luns[err_desc->lun_id]; 2467 if (lun == NULL) { 2468 mtx_unlock(&softc->ctl_lock); 2469 free(new_err_desc, M_CTL); 2470 printf("%s: CTL_ERROR_INJECT: invalid LUN %ju\n", 2471 __func__, (uintmax_t)err_desc->lun_id); 2472 retval = EINVAL; 2473 break; 2474 } 2475 mtx_lock(&lun->lun_lock); 2476 mtx_unlock(&softc->ctl_lock); 2477 2478 /* 2479 * We could do some checking here to verify the validity 2480 * of the request, but given the complexity of error 2481 * injection requests, the checking logic would be fairly 2482 * complex. 2483 * 2484 * For now, if the request is invalid, it just won't get 2485 * executed and might get deleted. 2486 */ 2487 STAILQ_INSERT_TAIL(&lun->error_list, new_err_desc, links); 2488 2489 /* 2490 * XXX KDM check to make sure the serial number is unique, 2491 * in case we somehow manage to wrap. That shouldn't 2492 * happen for a very long time, but it's the right thing to 2493 * do. 2494 */ 2495 new_err_desc->serial = lun->error_serial; 2496 err_desc->serial = lun->error_serial; 2497 lun->error_serial++; 2498 2499 mtx_unlock(&lun->lun_lock); 2500 break; 2501 } 2502 case CTL_ERROR_INJECT_DELETE: { 2503 struct ctl_error_desc *delete_desc, *desc, *desc2; 2504 struct ctl_lun *lun; 2505 int delete_done; 2506 2507 delete_desc = (struct ctl_error_desc *)addr; 2508 delete_done = 0; 2509 2510 mtx_lock(&softc->ctl_lock); 2511 lun = softc->ctl_luns[delete_desc->lun_id]; 2512 if (lun == NULL) { 2513 mtx_unlock(&softc->ctl_lock); 2514 printf("%s: CTL_ERROR_INJECT_DELETE: invalid LUN %ju\n", 2515 __func__, (uintmax_t)delete_desc->lun_id); 2516 retval = EINVAL; 2517 break; 2518 } 2519 mtx_lock(&lun->lun_lock); 2520 mtx_unlock(&softc->ctl_lock); 2521 STAILQ_FOREACH_SAFE(desc, &lun->error_list, links, desc2) { 2522 if (desc->serial != delete_desc->serial) 2523 continue; 2524 2525 STAILQ_REMOVE(&lun->error_list, desc, ctl_error_desc, 2526 links); 2527 free(desc, M_CTL); 2528 delete_done = 1; 2529 } 2530 mtx_unlock(&lun->lun_lock); 2531 if (delete_done == 0) { 2532 printf("%s: CTL_ERROR_INJECT_DELETE: can't find " 2533 "error serial %ju on LUN %u\n", __func__, 2534 delete_desc->serial, delete_desc->lun_id); 2535 retval = EINVAL; 2536 break; 2537 } 2538 break; 2539 } 2540 case CTL_DUMP_STRUCTS: { 2541 int i, j, k; 2542 struct ctl_port *port; 2543 struct ctl_frontend *fe; 2544 2545 mtx_lock(&softc->ctl_lock); 2546 printf("CTL Persistent Reservation information start:\n"); 2547 for (i = 0; i < CTL_MAX_LUNS; i++) { 2548 struct ctl_lun *lun; 2549 2550 lun = softc->ctl_luns[i]; 2551 2552 if ((lun == NULL) 2553 || ((lun->flags & CTL_LUN_DISABLED) != 0)) 2554 continue; 2555 2556 for (j = 0; j < (CTL_MAX_PORTS * 2); j++) { 2557 if (lun->pr_keys[j] == NULL) 2558 continue; 2559 for (k = 0; k < CTL_MAX_INIT_PER_PORT; k++){ 2560 if (lun->pr_keys[j][k] == 0) 2561 continue; 2562 printf(" LUN %d port %d iid %d key " 2563 "%#jx\n", i, j, k, 2564 (uintmax_t)lun->pr_keys[j][k]); 2565 } 2566 } 2567 } 2568 printf("CTL Persistent Reservation information end\n"); 2569 printf("CTL Ports:\n"); 2570 STAILQ_FOREACH(port, &softc->port_list, links) { 2571 printf(" Port %d '%s' Frontend '%s' Type %u pp %d vp %d WWNN " 2572 "%#jx WWPN %#jx\n", port->targ_port, port->port_name, 2573 port->frontend->name, port->port_type, 2574 port->physical_port, port->virtual_port, 2575 (uintmax_t)port->wwnn, (uintmax_t)port->wwpn); 2576 for (j = 0; j < CTL_MAX_INIT_PER_PORT; j++) { 2577 if (port->wwpn_iid[j].in_use == 0 && 2578 port->wwpn_iid[j].wwpn == 0 && 2579 port->wwpn_iid[j].name == NULL) 2580 continue; 2581 2582 printf(" iid %u use %d WWPN %#jx '%s'\n", 2583 j, port->wwpn_iid[j].in_use, 2584 (uintmax_t)port->wwpn_iid[j].wwpn, 2585 port->wwpn_iid[j].name); 2586 } 2587 } 2588 printf("CTL Port information end\n"); 2589 mtx_unlock(&softc->ctl_lock); 2590 /* 2591 * XXX KDM calling this without a lock. We'd likely want 2592 * to drop the lock before calling the frontend's dump 2593 * routine anyway. 2594 */ 2595 printf("CTL Frontends:\n"); 2596 STAILQ_FOREACH(fe, &softc->fe_list, links) { 2597 printf(" Frontend '%s'\n", fe->name); 2598 if (fe->fe_dump != NULL) 2599 fe->fe_dump(); 2600 } 2601 printf("CTL Frontend information end\n"); 2602 break; 2603 } 2604 case CTL_LUN_REQ: { 2605 struct ctl_lun_req *lun_req; 2606 struct ctl_backend_driver *backend; 2607 2608 lun_req = (struct ctl_lun_req *)addr; 2609 2610 backend = ctl_backend_find(lun_req->backend); 2611 if (backend == NULL) { 2612 lun_req->status = CTL_LUN_ERROR; 2613 snprintf(lun_req->error_str, 2614 sizeof(lun_req->error_str), 2615 "Backend \"%s\" not found.", 2616 lun_req->backend); 2617 break; 2618 } 2619 if (lun_req->num_be_args > 0) { 2620 lun_req->kern_be_args = ctl_copyin_args( 2621 lun_req->num_be_args, 2622 lun_req->be_args, 2623 lun_req->error_str, 2624 sizeof(lun_req->error_str)); 2625 if (lun_req->kern_be_args == NULL) { 2626 lun_req->status = CTL_LUN_ERROR; 2627 break; 2628 } 2629 } 2630 2631 retval = backend->ioctl(dev, cmd, addr, flag, td); 2632 2633 if (lun_req->num_be_args > 0) { 2634 ctl_copyout_args(lun_req->num_be_args, 2635 lun_req->kern_be_args); 2636 ctl_free_args(lun_req->num_be_args, 2637 lun_req->kern_be_args); 2638 } 2639 break; 2640 } 2641 case CTL_LUN_LIST: { 2642 struct sbuf *sb; 2643 struct ctl_lun *lun; 2644 struct ctl_lun_list *list; 2645 struct ctl_option *opt; 2646 2647 list = (struct ctl_lun_list *)addr; 2648 2649 /* 2650 * Allocate a fixed length sbuf here, based on the length 2651 * of the user's buffer. We could allocate an auto-extending 2652 * buffer, and then tell the user how much larger our 2653 * amount of data is than his buffer, but that presents 2654 * some problems: 2655 * 2656 * 1. The sbuf(9) routines use a blocking malloc, and so 2657 * we can't hold a lock while calling them with an 2658 * auto-extending buffer. 2659 * 2660 * 2. There is not currently a LUN reference counting 2661 * mechanism, outside of outstanding transactions on 2662 * the LUN's OOA queue. So a LUN could go away on us 2663 * while we're getting the LUN number, backend-specific 2664 * information, etc. Thus, given the way things 2665 * currently work, we need to hold the CTL lock while 2666 * grabbing LUN information. 2667 * 2668 * So, from the user's standpoint, the best thing to do is 2669 * allocate what he thinks is a reasonable buffer length, 2670 * and then if he gets a CTL_LUN_LIST_NEED_MORE_SPACE error, 2671 * double the buffer length and try again. (And repeat 2672 * that until he succeeds.) 2673 */ 2674 sb = sbuf_new(NULL, NULL, list->alloc_len, SBUF_FIXEDLEN); 2675 if (sb == NULL) { 2676 list->status = CTL_LUN_LIST_ERROR; 2677 snprintf(list->error_str, sizeof(list->error_str), 2678 "Unable to allocate %d bytes for LUN list", 2679 list->alloc_len); 2680 break; 2681 } 2682 2683 sbuf_printf(sb, "<ctllunlist>\n"); 2684 2685 mtx_lock(&softc->ctl_lock); 2686 STAILQ_FOREACH(lun, &softc->lun_list, links) { 2687 mtx_lock(&lun->lun_lock); 2688 retval = sbuf_printf(sb, "<lun id=\"%ju\">\n", 2689 (uintmax_t)lun->lun); 2690 2691 /* 2692 * Bail out as soon as we see that we've overfilled 2693 * the buffer. 2694 */ 2695 if (retval != 0) 2696 break; 2697 2698 retval = sbuf_printf(sb, "\t<backend_type>%s" 2699 "</backend_type>\n", 2700 (lun->backend == NULL) ? "none" : 2701 lun->backend->name); 2702 2703 if (retval != 0) 2704 break; 2705 2706 retval = sbuf_printf(sb, "\t<lun_type>%d</lun_type>\n", 2707 lun->be_lun->lun_type); 2708 2709 if (retval != 0) 2710 break; 2711 2712 if (lun->backend == NULL) { 2713 retval = sbuf_printf(sb, "</lun>\n"); 2714 if (retval != 0) 2715 break; 2716 continue; 2717 } 2718 2719 retval = sbuf_printf(sb, "\t<size>%ju</size>\n", 2720 (lun->be_lun->maxlba > 0) ? 2721 lun->be_lun->maxlba + 1 : 0); 2722 2723 if (retval != 0) 2724 break; 2725 2726 retval = sbuf_printf(sb, "\t<blocksize>%u</blocksize>\n", 2727 lun->be_lun->blocksize); 2728 2729 if (retval != 0) 2730 break; 2731 2732 retval = sbuf_printf(sb, "\t<serial_number>"); 2733 2734 if (retval != 0) 2735 break; 2736 2737 retval = ctl_sbuf_printf_esc(sb, 2738 lun->be_lun->serial_num, 2739 sizeof(lun->be_lun->serial_num)); 2740 2741 if (retval != 0) 2742 break; 2743 2744 retval = sbuf_printf(sb, "</serial_number>\n"); 2745 2746 if (retval != 0) 2747 break; 2748 2749 retval = sbuf_printf(sb, "\t<device_id>"); 2750 2751 if (retval != 0) 2752 break; 2753 2754 retval = ctl_sbuf_printf_esc(sb, 2755 lun->be_lun->device_id, 2756 sizeof(lun->be_lun->device_id)); 2757 2758 if (retval != 0) 2759 break; 2760 2761 retval = sbuf_printf(sb, "</device_id>\n"); 2762 2763 if (retval != 0) 2764 break; 2765 2766 if (lun->backend->lun_info != NULL) { 2767 retval = lun->backend->lun_info(lun->be_lun->be_lun, sb); 2768 if (retval != 0) 2769 break; 2770 } 2771 STAILQ_FOREACH(opt, &lun->be_lun->options, links) { 2772 retval = sbuf_printf(sb, "\t<%s>%s</%s>\n", 2773 opt->name, opt->value, opt->name); 2774 if (retval != 0) 2775 break; 2776 } 2777 2778 retval = sbuf_printf(sb, "</lun>\n"); 2779 2780 if (retval != 0) 2781 break; 2782 mtx_unlock(&lun->lun_lock); 2783 } 2784 if (lun != NULL) 2785 mtx_unlock(&lun->lun_lock); 2786 mtx_unlock(&softc->ctl_lock); 2787 2788 if ((retval != 0) 2789 || ((retval = sbuf_printf(sb, "</ctllunlist>\n")) != 0)) { 2790 retval = 0; 2791 sbuf_delete(sb); 2792 list->status = CTL_LUN_LIST_NEED_MORE_SPACE; 2793 snprintf(list->error_str, sizeof(list->error_str), 2794 "Out of space, %d bytes is too small", 2795 list->alloc_len); 2796 break; 2797 } 2798 2799 sbuf_finish(sb); 2800 2801 retval = copyout(sbuf_data(sb), list->lun_xml, 2802 sbuf_len(sb) + 1); 2803 2804 list->fill_len = sbuf_len(sb) + 1; 2805 list->status = CTL_LUN_LIST_OK; 2806 sbuf_delete(sb); 2807 break; 2808 } 2809 case CTL_ISCSI: { 2810 struct ctl_iscsi *ci; 2811 struct ctl_frontend *fe; 2812 2813 ci = (struct ctl_iscsi *)addr; 2814 2815 fe = ctl_frontend_find("iscsi"); 2816 if (fe == NULL) { 2817 ci->status = CTL_ISCSI_ERROR; 2818 snprintf(ci->error_str, sizeof(ci->error_str), 2819 "Frontend \"iscsi\" not found."); 2820 break; 2821 } 2822 2823 retval = fe->ioctl(dev, cmd, addr, flag, td); 2824 break; 2825 } 2826 case CTL_PORT_REQ: { 2827 struct ctl_req *req; 2828 struct ctl_frontend *fe; 2829 2830 req = (struct ctl_req *)addr; 2831 2832 fe = ctl_frontend_find(req->driver); 2833 if (fe == NULL) { 2834 req->status = CTL_LUN_ERROR; 2835 snprintf(req->error_str, sizeof(req->error_str), 2836 "Frontend \"%s\" not found.", req->driver); 2837 break; 2838 } 2839 if (req->num_args > 0) { 2840 req->kern_args = ctl_copyin_args(req->num_args, 2841 req->args, req->error_str, sizeof(req->error_str)); 2842 if (req->kern_args == NULL) { 2843 req->status = CTL_LUN_ERROR; 2844 break; 2845 } 2846 } 2847 2848 retval = fe->ioctl(dev, cmd, addr, flag, td); 2849 2850 if (req->num_args > 0) { 2851 ctl_copyout_args(req->num_args, req->kern_args); 2852 ctl_free_args(req->num_args, req->kern_args); 2853 } 2854 break; 2855 } 2856 case CTL_PORT_LIST: { 2857 struct sbuf *sb; 2858 struct ctl_port *port; 2859 struct ctl_lun_list *list; 2860 struct ctl_option *opt; 2861 int j; 2862 uint32_t plun; 2863 2864 list = (struct ctl_lun_list *)addr; 2865 2866 sb = sbuf_new(NULL, NULL, list->alloc_len, SBUF_FIXEDLEN); 2867 if (sb == NULL) { 2868 list->status = CTL_LUN_LIST_ERROR; 2869 snprintf(list->error_str, sizeof(list->error_str), 2870 "Unable to allocate %d bytes for LUN list", 2871 list->alloc_len); 2872 break; 2873 } 2874 2875 sbuf_printf(sb, "<ctlportlist>\n"); 2876 2877 mtx_lock(&softc->ctl_lock); 2878 STAILQ_FOREACH(port, &softc->port_list, links) { 2879 retval = sbuf_printf(sb, "<targ_port id=\"%ju\">\n", 2880 (uintmax_t)port->targ_port); 2881 2882 /* 2883 * Bail out as soon as we see that we've overfilled 2884 * the buffer. 2885 */ 2886 if (retval != 0) 2887 break; 2888 2889 retval = sbuf_printf(sb, "\t<frontend_type>%s" 2890 "</frontend_type>\n", port->frontend->name); 2891 if (retval != 0) 2892 break; 2893 2894 retval = sbuf_printf(sb, "\t<port_type>%d</port_type>\n", 2895 port->port_type); 2896 if (retval != 0) 2897 break; 2898 2899 retval = sbuf_printf(sb, "\t<online>%s</online>\n", 2900 (port->status & CTL_PORT_STATUS_ONLINE) ? "YES" : "NO"); 2901 if (retval != 0) 2902 break; 2903 2904 retval = sbuf_printf(sb, "\t<port_name>%s</port_name>\n", 2905 port->port_name); 2906 if (retval != 0) 2907 break; 2908 2909 retval = sbuf_printf(sb, "\t<physical_port>%d</physical_port>\n", 2910 port->physical_port); 2911 if (retval != 0) 2912 break; 2913 2914 retval = sbuf_printf(sb, "\t<virtual_port>%d</virtual_port>\n", 2915 port->virtual_port); 2916 if (retval != 0) 2917 break; 2918 2919 if (port->target_devid != NULL) { 2920 sbuf_printf(sb, "\t<target>"); 2921 ctl_id_sbuf(port->target_devid, sb); 2922 sbuf_printf(sb, "</target>\n"); 2923 } 2924 2925 if (port->port_devid != NULL) { 2926 sbuf_printf(sb, "\t<port>"); 2927 ctl_id_sbuf(port->port_devid, sb); 2928 sbuf_printf(sb, "</port>\n"); 2929 } 2930 2931 if (port->port_info != NULL) { 2932 retval = port->port_info(port->onoff_arg, sb); 2933 if (retval != 0) 2934 break; 2935 } 2936 STAILQ_FOREACH(opt, &port->options, links) { 2937 retval = sbuf_printf(sb, "\t<%s>%s</%s>\n", 2938 opt->name, opt->value, opt->name); 2939 if (retval != 0) 2940 break; 2941 } 2942 2943 if (port->lun_map != NULL) { 2944 sbuf_printf(sb, "\t<lun_map>on</lun_map>\n"); 2945 for (j = 0; j < CTL_MAX_LUNS; j++) { 2946 plun = ctl_lun_map_from_port(port, j); 2947 if (plun >= CTL_MAX_LUNS) 2948 continue; 2949 sbuf_printf(sb, 2950 "\t<lun id=\"%u\">%u</lun>\n", 2951 j, plun); 2952 } 2953 } 2954 2955 for (j = 0; j < CTL_MAX_INIT_PER_PORT; j++) { 2956 if (port->wwpn_iid[j].in_use == 0 || 2957 (port->wwpn_iid[j].wwpn == 0 && 2958 port->wwpn_iid[j].name == NULL)) 2959 continue; 2960 2961 if (port->wwpn_iid[j].name != NULL) 2962 retval = sbuf_printf(sb, 2963 "\t<initiator id=\"%u\">%s</initiator>\n", 2964 j, port->wwpn_iid[j].name); 2965 else 2966 retval = sbuf_printf(sb, 2967 "\t<initiator id=\"%u\">naa.%08jx</initiator>\n", 2968 j, port->wwpn_iid[j].wwpn); 2969 if (retval != 0) 2970 break; 2971 } 2972 if (retval != 0) 2973 break; 2974 2975 retval = sbuf_printf(sb, "</targ_port>\n"); 2976 if (retval != 0) 2977 break; 2978 } 2979 mtx_unlock(&softc->ctl_lock); 2980 2981 if ((retval != 0) 2982 || ((retval = sbuf_printf(sb, "</ctlportlist>\n")) != 0)) { 2983 retval = 0; 2984 sbuf_delete(sb); 2985 list->status = CTL_LUN_LIST_NEED_MORE_SPACE; 2986 snprintf(list->error_str, sizeof(list->error_str), 2987 "Out of space, %d bytes is too small", 2988 list->alloc_len); 2989 break; 2990 } 2991 2992 sbuf_finish(sb); 2993 2994 retval = copyout(sbuf_data(sb), list->lun_xml, 2995 sbuf_len(sb) + 1); 2996 2997 list->fill_len = sbuf_len(sb) + 1; 2998 list->status = CTL_LUN_LIST_OK; 2999 sbuf_delete(sb); 3000 break; 3001 } 3002 case CTL_LUN_MAP: { 3003 struct ctl_lun_map *lm = (struct ctl_lun_map *)addr; 3004 struct ctl_port *port; 3005 3006 mtx_lock(&softc->ctl_lock); 3007 if (lm->port >= CTL_MAX_PORTS || 3008 (port = softc->ctl_ports[lm->port]) == NULL) { 3009 mtx_unlock(&softc->ctl_lock); 3010 return (ENXIO); 3011 } 3012 mtx_unlock(&softc->ctl_lock); // XXX: port_enable sleeps 3013 if (lm->plun < CTL_MAX_LUNS) { 3014 if (lm->lun == UINT32_MAX) 3015 retval = ctl_lun_map_unset(port, lm->plun); 3016 else if (lm->lun < CTL_MAX_LUNS && 3017 softc->ctl_luns[lm->lun] != NULL) 3018 retval = ctl_lun_map_set(port, lm->plun, lm->lun); 3019 else 3020 return (ENXIO); 3021 } else if (lm->plun == UINT32_MAX) { 3022 if (lm->lun == UINT32_MAX) 3023 retval = ctl_lun_map_deinit(port); 3024 else 3025 retval = ctl_lun_map_init(port); 3026 } else 3027 return (ENXIO); 3028 break; 3029 } 3030 default: { 3031 /* XXX KDM should we fix this? */ 3032#if 0 3033 struct ctl_backend_driver *backend; 3034 unsigned int type; 3035 int found; 3036 3037 found = 0; 3038 3039 /* 3040 * We encode the backend type as the ioctl type for backend 3041 * ioctls. So parse it out here, and then search for a 3042 * backend of this type. 3043 */ 3044 type = _IOC_TYPE(cmd); 3045 3046 STAILQ_FOREACH(backend, &softc->be_list, links) { 3047 if (backend->type == type) { 3048 found = 1; 3049 break; 3050 } 3051 } 3052 if (found == 0) { 3053 printf("ctl: unknown ioctl command %#lx or backend " 3054 "%d\n", cmd, type); 3055 retval = EINVAL; 3056 break; 3057 } 3058 retval = backend->ioctl(dev, cmd, addr, flag, td); 3059#endif 3060 retval = ENOTTY; 3061 break; 3062 } 3063 } 3064 return (retval); 3065} 3066 3067uint32_t 3068ctl_get_initindex(struct ctl_nexus *nexus) 3069{ 3070 if (nexus->targ_port < CTL_MAX_PORTS) 3071 return (nexus->initid + 3072 (nexus->targ_port * CTL_MAX_INIT_PER_PORT)); 3073 else 3074 return (nexus->initid + 3075 ((nexus->targ_port - CTL_MAX_PORTS) * 3076 CTL_MAX_INIT_PER_PORT)); 3077} 3078 3079uint32_t 3080ctl_get_resindex(struct ctl_nexus *nexus) 3081{ 3082 return (nexus->initid + (nexus->targ_port * CTL_MAX_INIT_PER_PORT)); 3083} 3084 3085uint32_t 3086ctl_port_idx(int port_num) 3087{ 3088 if (port_num < CTL_MAX_PORTS) 3089 return(port_num); 3090 else 3091 return(port_num - CTL_MAX_PORTS); 3092} 3093 3094int 3095ctl_lun_map_init(struct ctl_port *port) 3096{ 3097 struct ctl_softc *softc = control_softc; 3098 struct ctl_lun *lun; 3099 uint32_t i; 3100 3101 if (port->lun_map == NULL) 3102 port->lun_map = malloc(sizeof(uint32_t) * CTL_MAX_LUNS, 3103 M_CTL, M_NOWAIT); 3104 if (port->lun_map == NULL) 3105 return (ENOMEM); 3106 for (i = 0; i < CTL_MAX_LUNS; i++) 3107 port->lun_map[i] = UINT32_MAX; 3108 if (port->status & CTL_PORT_STATUS_ONLINE && 3109 port->lun_disable != NULL) { 3110 STAILQ_FOREACH(lun, &softc->lun_list, links) 3111 port->lun_disable(port->targ_lun_arg, lun->lun); 3112 } 3113 return (0); 3114} 3115 3116int 3117ctl_lun_map_deinit(struct ctl_port *port) 3118{ 3119 struct ctl_softc *softc = control_softc; 3120 struct ctl_lun *lun; 3121 3122 if (port->lun_map == NULL) 3123 return (0); 3124 free(port->lun_map, M_CTL); 3125 port->lun_map = NULL; 3126 if (port->status & CTL_PORT_STATUS_ONLINE && 3127 port->lun_enable != NULL) { 3128 STAILQ_FOREACH(lun, &softc->lun_list, links) 3129 port->lun_enable(port->targ_lun_arg, lun->lun); 3130 } 3131 return (0); 3132} 3133 3134int 3135ctl_lun_map_set(struct ctl_port *port, uint32_t plun, uint32_t glun) 3136{ 3137 int status; 3138 uint32_t old; 3139 3140 if (port->lun_map == NULL) { 3141 status = ctl_lun_map_init(port); 3142 if (status != 0) 3143 return (status); 3144 } 3145 old = port->lun_map[plun]; 3146 port->lun_map[plun] = glun; 3147 if ((port->status & CTL_PORT_STATUS_ONLINE) && old >= CTL_MAX_LUNS && 3148 port->lun_enable != NULL) 3149 port->lun_enable(port->targ_lun_arg, plun); 3150 return (0); 3151} 3152 3153int 3154ctl_lun_map_unset(struct ctl_port *port, uint32_t plun) 3155{ 3156 uint32_t old; 3157 3158 if (port->lun_map == NULL) 3159 return (0); 3160 old = port->lun_map[plun]; 3161 port->lun_map[plun] = UINT32_MAX; 3162 if ((port->status & CTL_PORT_STATUS_ONLINE) && old < CTL_MAX_LUNS && 3163 port->lun_disable != NULL) 3164 port->lun_disable(port->targ_lun_arg, plun); 3165 return (0); 3166} 3167 3168uint32_t 3169ctl_lun_map_from_port(struct ctl_port *port, uint32_t lun_id) 3170{ 3171 3172 if (port == NULL) 3173 return (UINT32_MAX); 3174 if (port->lun_map == NULL || lun_id >= CTL_MAX_LUNS) 3175 return (lun_id); 3176 return (port->lun_map[lun_id]); 3177} 3178 3179uint32_t 3180ctl_lun_map_to_port(struct ctl_port *port, uint32_t lun_id) 3181{ 3182 uint32_t i; 3183 3184 if (port == NULL) 3185 return (UINT32_MAX); 3186 if (port->lun_map == NULL) 3187 return (lun_id); 3188 for (i = 0; i < CTL_MAX_LUNS; i++) { 3189 if (port->lun_map[i] == lun_id) 3190 return (i); 3191 } 3192 return (UINT32_MAX); 3193} 3194 3195static struct ctl_port * 3196ctl_io_port(struct ctl_io_hdr *io_hdr) 3197{ 3198 int port_num; 3199 3200 port_num = io_hdr->nexus.targ_port; 3201 return (control_softc->ctl_ports[ctl_port_idx(port_num)]); 3202} 3203 3204/* 3205 * Note: This only works for bitmask sizes that are at least 32 bits, and 3206 * that are a power of 2. 3207 */ 3208int 3209ctl_ffz(uint32_t *mask, uint32_t size) 3210{ 3211 uint32_t num_chunks, num_pieces; 3212 int i, j; 3213 3214 num_chunks = (size >> 5); 3215 if (num_chunks == 0) 3216 num_chunks++; 3217 num_pieces = MIN((sizeof(uint32_t) * 8), size); 3218 3219 for (i = 0; i < num_chunks; i++) { 3220 for (j = 0; j < num_pieces; j++) { 3221 if ((mask[i] & (1 << j)) == 0) 3222 return ((i << 5) + j); 3223 } 3224 } 3225 3226 return (-1); 3227} 3228 3229int 3230ctl_set_mask(uint32_t *mask, uint32_t bit) 3231{ 3232 uint32_t chunk, piece; 3233 3234 chunk = bit >> 5; 3235 piece = bit % (sizeof(uint32_t) * 8); 3236 3237 if ((mask[chunk] & (1 << piece)) != 0) 3238 return (-1); 3239 else 3240 mask[chunk] |= (1 << piece); 3241 3242 return (0); 3243} 3244 3245int 3246ctl_clear_mask(uint32_t *mask, uint32_t bit) 3247{ 3248 uint32_t chunk, piece; 3249 3250 chunk = bit >> 5; 3251 piece = bit % (sizeof(uint32_t) * 8); 3252 3253 if ((mask[chunk] & (1 << piece)) == 0) 3254 return (-1); 3255 else 3256 mask[chunk] &= ~(1 << piece); 3257 3258 return (0); 3259} 3260 3261int 3262ctl_is_set(uint32_t *mask, uint32_t bit) 3263{ 3264 uint32_t chunk, piece; 3265 3266 chunk = bit >> 5; 3267 piece = bit % (sizeof(uint32_t) * 8); 3268 3269 if ((mask[chunk] & (1 << piece)) == 0) 3270 return (0); 3271 else 3272 return (1); 3273} 3274 3275static uint64_t 3276ctl_get_prkey(struct ctl_lun *lun, uint32_t residx) 3277{ 3278 uint64_t *t; 3279 3280 t = lun->pr_keys[residx/CTL_MAX_INIT_PER_PORT]; 3281 if (t == NULL) 3282 return (0); 3283 return (t[residx % CTL_MAX_INIT_PER_PORT]); 3284} 3285 3286static void 3287ctl_clr_prkey(struct ctl_lun *lun, uint32_t residx) 3288{ 3289 uint64_t *t; 3290 3291 t = lun->pr_keys[residx/CTL_MAX_INIT_PER_PORT]; 3292 if (t == NULL) 3293 return; 3294 t[residx % CTL_MAX_INIT_PER_PORT] = 0; 3295} 3296 3297static void 3298ctl_alloc_prkey(struct ctl_lun *lun, uint32_t residx) 3299{ 3300 uint64_t *p; 3301 u_int i; 3302 3303 i = residx/CTL_MAX_INIT_PER_PORT; 3304 if (lun->pr_keys[i] != NULL) 3305 return; 3306 mtx_unlock(&lun->lun_lock); 3307 p = malloc(sizeof(uint64_t) * CTL_MAX_INIT_PER_PORT, M_CTL, 3308 M_WAITOK | M_ZERO); 3309 mtx_lock(&lun->lun_lock); 3310 if (lun->pr_keys[i] == NULL) 3311 lun->pr_keys[i] = p; 3312 else 3313 free(p, M_CTL); 3314} 3315 3316static void 3317ctl_set_prkey(struct ctl_lun *lun, uint32_t residx, uint64_t key) 3318{ 3319 uint64_t *t; 3320 3321 t = lun->pr_keys[residx/CTL_MAX_INIT_PER_PORT]; 3322 KASSERT(t != NULL, ("prkey %d is not allocated", residx)); 3323 t[residx % CTL_MAX_INIT_PER_PORT] = key; 3324} 3325 3326/* 3327 * ctl_softc, pool_name, total_ctl_io are passed in. 3328 * npool is passed out. 3329 */ 3330int 3331ctl_pool_create(struct ctl_softc *ctl_softc, const char *pool_name, 3332 uint32_t total_ctl_io, void **npool) 3333{ 3334#ifdef IO_POOLS 3335 struct ctl_io_pool *pool; 3336 3337 pool = (struct ctl_io_pool *)malloc(sizeof(*pool), M_CTL, 3338 M_NOWAIT | M_ZERO); 3339 if (pool == NULL) 3340 return (ENOMEM); 3341 3342 snprintf(pool->name, sizeof(pool->name), "CTL IO %s", pool_name); 3343 pool->ctl_softc = ctl_softc; 3344 pool->zone = uma_zsecond_create(pool->name, NULL, 3345 NULL, NULL, NULL, ctl_softc->io_zone); 3346 /* uma_prealloc(pool->zone, total_ctl_io); */ 3347 3348 *npool = pool; 3349#else 3350 *npool = ctl_softc->io_zone; 3351#endif 3352 return (0); 3353} 3354 3355void 3356ctl_pool_free(struct ctl_io_pool *pool) 3357{ 3358 3359 if (pool == NULL) 3360 return; 3361 3362#ifdef IO_POOLS 3363 uma_zdestroy(pool->zone); 3364 free(pool, M_CTL); 3365#endif 3366} 3367 3368union ctl_io * 3369ctl_alloc_io(void *pool_ref) 3370{ 3371 union ctl_io *io; 3372#ifdef IO_POOLS 3373 struct ctl_io_pool *pool = (struct ctl_io_pool *)pool_ref; 3374 3375 io = uma_zalloc(pool->zone, M_WAITOK); 3376#else 3377 io = uma_zalloc((uma_zone_t)pool_ref, M_WAITOK); 3378#endif 3379 if (io != NULL) 3380 io->io_hdr.pool = pool_ref; 3381 return (io); 3382} 3383 3384union ctl_io * 3385ctl_alloc_io_nowait(void *pool_ref) 3386{ 3387 union ctl_io *io; 3388#ifdef IO_POOLS 3389 struct ctl_io_pool *pool = (struct ctl_io_pool *)pool_ref; 3390 3391 io = uma_zalloc(pool->zone, M_NOWAIT); 3392#else 3393 io = uma_zalloc((uma_zone_t)pool_ref, M_NOWAIT); 3394#endif 3395 if (io != NULL) 3396 io->io_hdr.pool = pool_ref; 3397 return (io); 3398} 3399 3400void 3401ctl_free_io(union ctl_io *io) 3402{ 3403#ifdef IO_POOLS 3404 struct ctl_io_pool *pool; 3405#endif 3406 3407 if (io == NULL) 3408 return; 3409 3410#ifdef IO_POOLS 3411 pool = (struct ctl_io_pool *)io->io_hdr.pool; 3412 uma_zfree(pool->zone, io); 3413#else 3414 uma_zfree((uma_zone_t)io->io_hdr.pool, io); 3415#endif 3416} 3417 3418void 3419ctl_zero_io(union ctl_io *io) 3420{ 3421 void *pool_ref; 3422 3423 if (io == NULL) 3424 return; 3425 3426 /* 3427 * May need to preserve linked list pointers at some point too. 3428 */ 3429 pool_ref = io->io_hdr.pool; 3430 memset(io, 0, sizeof(*io)); 3431 io->io_hdr.pool = pool_ref; 3432} 3433 3434/* 3435 * This routine is currently used for internal copies of ctl_ios that need 3436 * to persist for some reason after we've already returned status to the 3437 * FETD. (Thus the flag set.) 3438 * 3439 * XXX XXX 3440 * Note that this makes a blind copy of all fields in the ctl_io, except 3441 * for the pool reference. This includes any memory that has been 3442 * allocated! That memory will no longer be valid after done has been 3443 * called, so this would be VERY DANGEROUS for command that actually does 3444 * any reads or writes. Right now (11/7/2005), this is only used for immediate 3445 * start and stop commands, which don't transfer any data, so this is not a 3446 * problem. If it is used for anything else, the caller would also need to 3447 * allocate data buffer space and this routine would need to be modified to 3448 * copy the data buffer(s) as well. 3449 */ 3450void 3451ctl_copy_io(union ctl_io *src, union ctl_io *dest) 3452{ 3453 void *pool_ref; 3454 3455 if ((src == NULL) 3456 || (dest == NULL)) 3457 return; 3458 3459 /* 3460 * May need to preserve linked list pointers at some point too. 3461 */ 3462 pool_ref = dest->io_hdr.pool; 3463 3464 memcpy(dest, src, MIN(sizeof(*src), sizeof(*dest))); 3465 3466 dest->io_hdr.pool = pool_ref; 3467 /* 3468 * We need to know that this is an internal copy, and doesn't need 3469 * to get passed back to the FETD that allocated it. 3470 */ 3471 dest->io_hdr.flags |= CTL_FLAG_INT_COPY; 3472} 3473 3474int 3475ctl_expand_number(const char *buf, uint64_t *num) 3476{ 3477 char *endptr; 3478 uint64_t number; 3479 unsigned shift; 3480 3481 number = strtoq(buf, &endptr, 0); 3482 3483 switch (tolower((unsigned char)*endptr)) { 3484 case 'e': 3485 shift = 60; 3486 break; 3487 case 'p': 3488 shift = 50; 3489 break; 3490 case 't': 3491 shift = 40; 3492 break; 3493 case 'g': 3494 shift = 30; 3495 break; 3496 case 'm': 3497 shift = 20; 3498 break; 3499 case 'k': 3500 shift = 10; 3501 break; 3502 case 'b': 3503 case '\0': /* No unit. */ 3504 *num = number; 3505 return (0); 3506 default: 3507 /* Unrecognized unit. */ 3508 return (-1); 3509 } 3510 3511 if ((number << shift) >> shift != number) { 3512 /* Overflow */ 3513 return (-1); 3514 } 3515 *num = number << shift; 3516 return (0); 3517} 3518 3519 3520/* 3521 * This routine could be used in the future to load default and/or saved 3522 * mode page parameters for a particuar lun. 3523 */ 3524static int 3525ctl_init_page_index(struct ctl_lun *lun) 3526{ 3527 int i; 3528 struct ctl_page_index *page_index; 3529 const char *value; 3530 uint64_t ival; 3531 3532 memcpy(&lun->mode_pages.index, page_index_template, 3533 sizeof(page_index_template)); 3534 3535 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 3536 3537 page_index = &lun->mode_pages.index[i]; 3538 /* 3539 * If this is a disk-only mode page, there's no point in 3540 * setting it up. For some pages, we have to have some 3541 * basic information about the disk in order to calculate the 3542 * mode page data. 3543 */ 3544 if ((lun->be_lun->lun_type != T_DIRECT) 3545 && (page_index->page_flags & CTL_PAGE_FLAG_DISK_ONLY)) 3546 continue; 3547 3548 switch (page_index->page_code & SMPH_PC_MASK) { 3549 case SMS_RW_ERROR_RECOVERY_PAGE: { 3550 if (page_index->subpage != SMS_SUBPAGE_PAGE_0) 3551 panic("subpage is incorrect!"); 3552 memcpy(&lun->mode_pages.rw_er_page[CTL_PAGE_CURRENT], 3553 &rw_er_page_default, 3554 sizeof(rw_er_page_default)); 3555 memcpy(&lun->mode_pages.rw_er_page[CTL_PAGE_CHANGEABLE], 3556 &rw_er_page_changeable, 3557 sizeof(rw_er_page_changeable)); 3558 memcpy(&lun->mode_pages.rw_er_page[CTL_PAGE_DEFAULT], 3559 &rw_er_page_default, 3560 sizeof(rw_er_page_default)); 3561 memcpy(&lun->mode_pages.rw_er_page[CTL_PAGE_SAVED], 3562 &rw_er_page_default, 3563 sizeof(rw_er_page_default)); 3564 page_index->page_data = 3565 (uint8_t *)lun->mode_pages.rw_er_page; 3566 break; 3567 } 3568 case SMS_FORMAT_DEVICE_PAGE: { 3569 struct scsi_format_page *format_page; 3570 3571 if (page_index->subpage != SMS_SUBPAGE_PAGE_0) 3572 panic("subpage is incorrect!"); 3573 3574 /* 3575 * Sectors per track are set above. Bytes per 3576 * sector need to be set here on a per-LUN basis. 3577 */ 3578 memcpy(&lun->mode_pages.format_page[CTL_PAGE_CURRENT], 3579 &format_page_default, 3580 sizeof(format_page_default)); 3581 memcpy(&lun->mode_pages.format_page[ 3582 CTL_PAGE_CHANGEABLE], &format_page_changeable, 3583 sizeof(format_page_changeable)); 3584 memcpy(&lun->mode_pages.format_page[CTL_PAGE_DEFAULT], 3585 &format_page_default, 3586 sizeof(format_page_default)); 3587 memcpy(&lun->mode_pages.format_page[CTL_PAGE_SAVED], 3588 &format_page_default, 3589 sizeof(format_page_default)); 3590 3591 format_page = &lun->mode_pages.format_page[ 3592 CTL_PAGE_CURRENT]; 3593 scsi_ulto2b(lun->be_lun->blocksize, 3594 format_page->bytes_per_sector); 3595 3596 format_page = &lun->mode_pages.format_page[ 3597 CTL_PAGE_DEFAULT]; 3598 scsi_ulto2b(lun->be_lun->blocksize, 3599 format_page->bytes_per_sector); 3600 3601 format_page = &lun->mode_pages.format_page[ 3602 CTL_PAGE_SAVED]; 3603 scsi_ulto2b(lun->be_lun->blocksize, 3604 format_page->bytes_per_sector); 3605 3606 page_index->page_data = 3607 (uint8_t *)lun->mode_pages.format_page; 3608 break; 3609 } 3610 case SMS_RIGID_DISK_PAGE: { 3611 struct scsi_rigid_disk_page *rigid_disk_page; 3612 uint32_t sectors_per_cylinder; 3613 uint64_t cylinders; 3614#ifndef __XSCALE__ 3615 int shift; 3616#endif /* !__XSCALE__ */ 3617 3618 if (page_index->subpage != SMS_SUBPAGE_PAGE_0) 3619 panic("invalid subpage value %d", 3620 page_index->subpage); 3621 3622 /* 3623 * Rotation rate and sectors per track are set 3624 * above. We calculate the cylinders here based on 3625 * capacity. Due to the number of heads and 3626 * sectors per track we're using, smaller arrays 3627 * may turn out to have 0 cylinders. Linux and 3628 * FreeBSD don't pay attention to these mode pages 3629 * to figure out capacity, but Solaris does. It 3630 * seems to deal with 0 cylinders just fine, and 3631 * works out a fake geometry based on the capacity. 3632 */ 3633 memcpy(&lun->mode_pages.rigid_disk_page[ 3634 CTL_PAGE_DEFAULT], &rigid_disk_page_default, 3635 sizeof(rigid_disk_page_default)); 3636 memcpy(&lun->mode_pages.rigid_disk_page[ 3637 CTL_PAGE_CHANGEABLE],&rigid_disk_page_changeable, 3638 sizeof(rigid_disk_page_changeable)); 3639 3640 sectors_per_cylinder = CTL_DEFAULT_SECTORS_PER_TRACK * 3641 CTL_DEFAULT_HEADS; 3642 3643 /* 3644 * The divide method here will be more accurate, 3645 * probably, but results in floating point being 3646 * used in the kernel on i386 (__udivdi3()). On the 3647 * XScale, though, __udivdi3() is implemented in 3648 * software. 3649 * 3650 * The shift method for cylinder calculation is 3651 * accurate if sectors_per_cylinder is a power of 3652 * 2. Otherwise it might be slightly off -- you 3653 * might have a bit of a truncation problem. 3654 */ 3655#ifdef __XSCALE__ 3656 cylinders = (lun->be_lun->maxlba + 1) / 3657 sectors_per_cylinder; 3658#else 3659 for (shift = 31; shift > 0; shift--) { 3660 if (sectors_per_cylinder & (1 << shift)) 3661 break; 3662 } 3663 cylinders = (lun->be_lun->maxlba + 1) >> shift; 3664#endif 3665 3666 /* 3667 * We've basically got 3 bytes, or 24 bits for the 3668 * cylinder size in the mode page. If we're over, 3669 * just round down to 2^24. 3670 */ 3671 if (cylinders > 0xffffff) 3672 cylinders = 0xffffff; 3673 3674 rigid_disk_page = &lun->mode_pages.rigid_disk_page[ 3675 CTL_PAGE_DEFAULT]; 3676 scsi_ulto3b(cylinders, rigid_disk_page->cylinders); 3677 3678 if ((value = ctl_get_opt(&lun->be_lun->options, 3679 "rpm")) != NULL) { 3680 scsi_ulto2b(strtol(value, NULL, 0), 3681 rigid_disk_page->rotation_rate); 3682 } 3683 3684 memcpy(&lun->mode_pages.rigid_disk_page[CTL_PAGE_CURRENT], 3685 &lun->mode_pages.rigid_disk_page[CTL_PAGE_DEFAULT], 3686 sizeof(rigid_disk_page_default)); 3687 memcpy(&lun->mode_pages.rigid_disk_page[CTL_PAGE_SAVED], 3688 &lun->mode_pages.rigid_disk_page[CTL_PAGE_DEFAULT], 3689 sizeof(rigid_disk_page_default)); 3690 3691 page_index->page_data = 3692 (uint8_t *)lun->mode_pages.rigid_disk_page; 3693 break; 3694 } 3695 case SMS_CACHING_PAGE: { 3696 struct scsi_caching_page *caching_page; 3697 3698 if (page_index->subpage != SMS_SUBPAGE_PAGE_0) 3699 panic("invalid subpage value %d", 3700 page_index->subpage); 3701 memcpy(&lun->mode_pages.caching_page[CTL_PAGE_DEFAULT], 3702 &caching_page_default, 3703 sizeof(caching_page_default)); 3704 memcpy(&lun->mode_pages.caching_page[ 3705 CTL_PAGE_CHANGEABLE], &caching_page_changeable, 3706 sizeof(caching_page_changeable)); 3707 memcpy(&lun->mode_pages.caching_page[CTL_PAGE_SAVED], 3708 &caching_page_default, 3709 sizeof(caching_page_default)); 3710 caching_page = &lun->mode_pages.caching_page[ 3711 CTL_PAGE_SAVED]; 3712 value = ctl_get_opt(&lun->be_lun->options, "writecache"); 3713 if (value != NULL && strcmp(value, "off") == 0) 3714 caching_page->flags1 &= ~SCP_WCE; 3715 value = ctl_get_opt(&lun->be_lun->options, "readcache"); 3716 if (value != NULL && strcmp(value, "off") == 0) 3717 caching_page->flags1 |= SCP_RCD; 3718 memcpy(&lun->mode_pages.caching_page[CTL_PAGE_CURRENT], 3719 &lun->mode_pages.caching_page[CTL_PAGE_SAVED], 3720 sizeof(caching_page_default)); 3721 page_index->page_data = 3722 (uint8_t *)lun->mode_pages.caching_page; 3723 break; 3724 } 3725 case SMS_CONTROL_MODE_PAGE: { 3726 struct scsi_control_page *control_page; 3727 3728 if (page_index->subpage != SMS_SUBPAGE_PAGE_0) 3729 panic("invalid subpage value %d", 3730 page_index->subpage); 3731 3732 memcpy(&lun->mode_pages.control_page[CTL_PAGE_DEFAULT], 3733 &control_page_default, 3734 sizeof(control_page_default)); 3735 memcpy(&lun->mode_pages.control_page[ 3736 CTL_PAGE_CHANGEABLE], &control_page_changeable, 3737 sizeof(control_page_changeable)); 3738 memcpy(&lun->mode_pages.control_page[CTL_PAGE_SAVED], 3739 &control_page_default, 3740 sizeof(control_page_default)); 3741 control_page = &lun->mode_pages.control_page[ 3742 CTL_PAGE_SAVED]; 3743 value = ctl_get_opt(&lun->be_lun->options, "reordering"); 3744 if (value != NULL && strcmp(value, "unrestricted") == 0) { 3745 control_page->queue_flags &= ~SCP_QUEUE_ALG_MASK; 3746 control_page->queue_flags |= SCP_QUEUE_ALG_UNRESTRICTED; 3747 } 3748 memcpy(&lun->mode_pages.control_page[CTL_PAGE_CURRENT], 3749 &lun->mode_pages.control_page[CTL_PAGE_SAVED], 3750 sizeof(control_page_default)); 3751 page_index->page_data = 3752 (uint8_t *)lun->mode_pages.control_page; 3753 break; 3754 3755 } 3756 case SMS_INFO_EXCEPTIONS_PAGE: { 3757 switch (page_index->subpage) { 3758 case SMS_SUBPAGE_PAGE_0: 3759 memcpy(&lun->mode_pages.ie_page[CTL_PAGE_CURRENT], 3760 &ie_page_default, 3761 sizeof(ie_page_default)); 3762 memcpy(&lun->mode_pages.ie_page[ 3763 CTL_PAGE_CHANGEABLE], &ie_page_changeable, 3764 sizeof(ie_page_changeable)); 3765 memcpy(&lun->mode_pages.ie_page[CTL_PAGE_DEFAULT], 3766 &ie_page_default, 3767 sizeof(ie_page_default)); 3768 memcpy(&lun->mode_pages.ie_page[CTL_PAGE_SAVED], 3769 &ie_page_default, 3770 sizeof(ie_page_default)); 3771 page_index->page_data = 3772 (uint8_t *)lun->mode_pages.ie_page; 3773 break; 3774 case 0x02: { 3775 struct ctl_logical_block_provisioning_page *page; 3776 3777 memcpy(&lun->mode_pages.lbp_page[CTL_PAGE_DEFAULT], 3778 &lbp_page_default, 3779 sizeof(lbp_page_default)); 3780 memcpy(&lun->mode_pages.lbp_page[ 3781 CTL_PAGE_CHANGEABLE], &lbp_page_changeable, 3782 sizeof(lbp_page_changeable)); 3783 memcpy(&lun->mode_pages.lbp_page[CTL_PAGE_SAVED], 3784 &lbp_page_default, 3785 sizeof(lbp_page_default)); 3786 page = &lun->mode_pages.lbp_page[CTL_PAGE_SAVED]; 3787 value = ctl_get_opt(&lun->be_lun->options, 3788 "avail-threshold"); 3789 if (value != NULL && 3790 ctl_expand_number(value, &ival) == 0) { 3791 page->descr[0].flags |= SLBPPD_ENABLED | 3792 SLBPPD_ARMING_DEC; 3793 if (lun->be_lun->blocksize) 3794 ival /= lun->be_lun->blocksize; 3795 else 3796 ival /= 512; 3797 scsi_ulto4b(ival >> CTL_LBP_EXPONENT, 3798 page->descr[0].count); 3799 } 3800 value = ctl_get_opt(&lun->be_lun->options, 3801 "used-threshold"); 3802 if (value != NULL && 3803 ctl_expand_number(value, &ival) == 0) { 3804 page->descr[1].flags |= SLBPPD_ENABLED | 3805 SLBPPD_ARMING_INC; 3806 if (lun->be_lun->blocksize) 3807 ival /= lun->be_lun->blocksize; 3808 else 3809 ival /= 512; 3810 scsi_ulto4b(ival >> CTL_LBP_EXPONENT, 3811 page->descr[1].count); 3812 } 3813 value = ctl_get_opt(&lun->be_lun->options, 3814 "pool-avail-threshold"); 3815 if (value != NULL && 3816 ctl_expand_number(value, &ival) == 0) { 3817 page->descr[2].flags |= SLBPPD_ENABLED | 3818 SLBPPD_ARMING_DEC; 3819 if (lun->be_lun->blocksize) 3820 ival /= lun->be_lun->blocksize; 3821 else 3822 ival /= 512; 3823 scsi_ulto4b(ival >> CTL_LBP_EXPONENT, 3824 page->descr[2].count); 3825 } 3826 value = ctl_get_opt(&lun->be_lun->options, 3827 "pool-used-threshold"); 3828 if (value != NULL && 3829 ctl_expand_number(value, &ival) == 0) { 3830 page->descr[3].flags |= SLBPPD_ENABLED | 3831 SLBPPD_ARMING_INC; 3832 if (lun->be_lun->blocksize) 3833 ival /= lun->be_lun->blocksize; 3834 else 3835 ival /= 512; 3836 scsi_ulto4b(ival >> CTL_LBP_EXPONENT, 3837 page->descr[3].count); 3838 } 3839 memcpy(&lun->mode_pages.lbp_page[CTL_PAGE_CURRENT], 3840 &lun->mode_pages.lbp_page[CTL_PAGE_SAVED], 3841 sizeof(lbp_page_default)); 3842 page_index->page_data = 3843 (uint8_t *)lun->mode_pages.lbp_page; 3844 }} 3845 break; 3846 } 3847 case SMS_VENDOR_SPECIFIC_PAGE:{ 3848 switch (page_index->subpage) { 3849 case DBGCNF_SUBPAGE_CODE: { 3850 struct copan_debugconf_subpage *current_page, 3851 *saved_page; 3852 3853 memcpy(&lun->mode_pages.debugconf_subpage[ 3854 CTL_PAGE_CURRENT], 3855 &debugconf_page_default, 3856 sizeof(debugconf_page_default)); 3857 memcpy(&lun->mode_pages.debugconf_subpage[ 3858 CTL_PAGE_CHANGEABLE], 3859 &debugconf_page_changeable, 3860 sizeof(debugconf_page_changeable)); 3861 memcpy(&lun->mode_pages.debugconf_subpage[ 3862 CTL_PAGE_DEFAULT], 3863 &debugconf_page_default, 3864 sizeof(debugconf_page_default)); 3865 memcpy(&lun->mode_pages.debugconf_subpage[ 3866 CTL_PAGE_SAVED], 3867 &debugconf_page_default, 3868 sizeof(debugconf_page_default)); 3869 page_index->page_data = 3870 (uint8_t *)lun->mode_pages.debugconf_subpage; 3871 3872 current_page = (struct copan_debugconf_subpage *) 3873 (page_index->page_data + 3874 (page_index->page_len * 3875 CTL_PAGE_CURRENT)); 3876 saved_page = (struct copan_debugconf_subpage *) 3877 (page_index->page_data + 3878 (page_index->page_len * 3879 CTL_PAGE_SAVED)); 3880 break; 3881 } 3882 default: 3883 panic("invalid subpage value %d", 3884 page_index->subpage); 3885 break; 3886 } 3887 break; 3888 } 3889 default: 3890 panic("invalid page value %d", 3891 page_index->page_code & SMPH_PC_MASK); 3892 break; 3893 } 3894 } 3895 3896 return (CTL_RETVAL_COMPLETE); 3897} 3898 3899static int 3900ctl_init_log_page_index(struct ctl_lun *lun) 3901{ 3902 struct ctl_page_index *page_index; 3903 int i, j, k, prev; 3904 3905 memcpy(&lun->log_pages.index, log_page_index_template, 3906 sizeof(log_page_index_template)); 3907 3908 prev = -1; 3909 for (i = 0, j = 0, k = 0; i < CTL_NUM_LOG_PAGES; i++) { 3910 3911 page_index = &lun->log_pages.index[i]; 3912 /* 3913 * If this is a disk-only mode page, there's no point in 3914 * setting it up. For some pages, we have to have some 3915 * basic information about the disk in order to calculate the 3916 * mode page data. 3917 */ 3918 if ((lun->be_lun->lun_type != T_DIRECT) 3919 && (page_index->page_flags & CTL_PAGE_FLAG_DISK_ONLY)) 3920 continue; 3921 3922 if (page_index->page_code == SLS_LOGICAL_BLOCK_PROVISIONING && 3923 lun->backend->lun_attr == NULL) 3924 continue; 3925 3926 if (page_index->page_code != prev) { 3927 lun->log_pages.pages_page[j] = page_index->page_code; 3928 prev = page_index->page_code; 3929 j++; 3930 } 3931 lun->log_pages.subpages_page[k*2] = page_index->page_code; 3932 lun->log_pages.subpages_page[k*2+1] = page_index->subpage; 3933 k++; 3934 } 3935 lun->log_pages.index[0].page_data = &lun->log_pages.pages_page[0]; 3936 lun->log_pages.index[0].page_len = j; 3937 lun->log_pages.index[1].page_data = &lun->log_pages.subpages_page[0]; 3938 lun->log_pages.index[1].page_len = k * 2; 3939 lun->log_pages.index[2].page_data = &lun->log_pages.lbp_page[0]; 3940 lun->log_pages.index[2].page_len = 12*CTL_NUM_LBP_PARAMS; 3941 lun->log_pages.index[3].page_data = (uint8_t *)&lun->log_pages.stat_page; 3942 lun->log_pages.index[3].page_len = sizeof(lun->log_pages.stat_page); 3943 3944 return (CTL_RETVAL_COMPLETE); 3945} 3946 3947static int 3948hex2bin(const char *str, uint8_t *buf, int buf_size) 3949{ 3950 int i; 3951 u_char c; 3952 3953 memset(buf, 0, buf_size); 3954 while (isspace(str[0])) 3955 str++; 3956 if (str[0] == '0' && (str[1] == 'x' || str[1] == 'X')) 3957 str += 2; 3958 buf_size *= 2; 3959 for (i = 0; str[i] != 0 && i < buf_size; i++) { 3960 c = str[i]; 3961 if (isdigit(c)) 3962 c -= '0'; 3963 else if (isalpha(c)) 3964 c -= isupper(c) ? 'A' - 10 : 'a' - 10; 3965 else 3966 break; 3967 if (c >= 16) 3968 break; 3969 if ((i & 1) == 0) 3970 buf[i / 2] |= (c << 4); 3971 else 3972 buf[i / 2] |= c; 3973 } 3974 return ((i + 1) / 2); 3975} 3976 3977/* 3978 * LUN allocation. 3979 * 3980 * Requirements: 3981 * - caller allocates and zeros LUN storage, or passes in a NULL LUN if he 3982 * wants us to allocate the LUN and he can block. 3983 * - ctl_softc is always set 3984 * - be_lun is set if the LUN has a backend (needed for disk LUNs) 3985 * 3986 * Returns 0 for success, non-zero (errno) for failure. 3987 */ 3988static int 3989ctl_alloc_lun(struct ctl_softc *ctl_softc, struct ctl_lun *ctl_lun, 3990 struct ctl_be_lun *const be_lun) 3991{ 3992 struct ctl_lun *nlun, *lun; 3993 struct scsi_vpd_id_descriptor *desc; 3994 struct scsi_vpd_id_t10 *t10id; 3995 const char *eui, *naa, *scsiname, *vendor; 3996 int lun_number, i, lun_malloced; 3997 int devidlen, idlen1, idlen2 = 0, len; 3998 3999 if (be_lun == NULL) 4000 return (EINVAL); 4001 4002 /* 4003 * We currently only support Direct Access or Processor LUN types. 4004 */ 4005 switch (be_lun->lun_type) { 4006 case T_DIRECT: 4007 break; 4008 case T_PROCESSOR: 4009 break; 4010 case T_SEQUENTIAL: 4011 case T_CHANGER: 4012 default: 4013 be_lun->lun_config_status(be_lun->be_lun, 4014 CTL_LUN_CONFIG_FAILURE); 4015 break; 4016 } 4017 if (ctl_lun == NULL) { 4018 lun = malloc(sizeof(*lun), M_CTL, M_WAITOK); 4019 lun_malloced = 1; 4020 } else { 4021 lun_malloced = 0; 4022 lun = ctl_lun; 4023 } 4024 4025 memset(lun, 0, sizeof(*lun)); 4026 if (lun_malloced) 4027 lun->flags = CTL_LUN_MALLOCED; 4028 4029 /* Generate LUN ID. */ 4030 devidlen = max(CTL_DEVID_MIN_LEN, 4031 strnlen(be_lun->device_id, CTL_DEVID_LEN)); 4032 idlen1 = sizeof(*t10id) + devidlen; 4033 len = sizeof(struct scsi_vpd_id_descriptor) + idlen1; 4034 scsiname = ctl_get_opt(&be_lun->options, "scsiname"); 4035 if (scsiname != NULL) { 4036 idlen2 = roundup2(strlen(scsiname) + 1, 4); 4037 len += sizeof(struct scsi_vpd_id_descriptor) + idlen2; 4038 } 4039 eui = ctl_get_opt(&be_lun->options, "eui"); 4040 if (eui != NULL) { 4041 len += sizeof(struct scsi_vpd_id_descriptor) + 16; 4042 } 4043 naa = ctl_get_opt(&be_lun->options, "naa"); 4044 if (naa != NULL) { 4045 len += sizeof(struct scsi_vpd_id_descriptor) + 16; 4046 } 4047 lun->lun_devid = malloc(sizeof(struct ctl_devid) + len, 4048 M_CTL, M_WAITOK | M_ZERO); 4049 desc = (struct scsi_vpd_id_descriptor *)lun->lun_devid->data; 4050 desc->proto_codeset = SVPD_ID_CODESET_ASCII; 4051 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | SVPD_ID_TYPE_T10; 4052 desc->length = idlen1; 4053 t10id = (struct scsi_vpd_id_t10 *)&desc->identifier[0]; 4054 memset(t10id->vendor, ' ', sizeof(t10id->vendor)); 4055 if ((vendor = ctl_get_opt(&be_lun->options, "vendor")) == NULL) { 4056 strncpy((char *)t10id->vendor, CTL_VENDOR, sizeof(t10id->vendor)); 4057 } else { 4058 strncpy(t10id->vendor, vendor, 4059 min(sizeof(t10id->vendor), strlen(vendor))); 4060 } 4061 strncpy((char *)t10id->vendor_spec_id, 4062 (char *)be_lun->device_id, devidlen); 4063 if (scsiname != NULL) { 4064 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 4065 desc->length); 4066 desc->proto_codeset = SVPD_ID_CODESET_UTF8; 4067 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | 4068 SVPD_ID_TYPE_SCSI_NAME; 4069 desc->length = idlen2; 4070 strlcpy(desc->identifier, scsiname, idlen2); 4071 } 4072 if (eui != NULL) { 4073 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 4074 desc->length); 4075 desc->proto_codeset = SVPD_ID_CODESET_BINARY; 4076 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | 4077 SVPD_ID_TYPE_EUI64; 4078 desc->length = hex2bin(eui, desc->identifier, 16); 4079 desc->length = desc->length > 12 ? 16 : 4080 (desc->length > 8 ? 12 : 8); 4081 len -= 16 - desc->length; 4082 } 4083 if (naa != NULL) { 4084 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 4085 desc->length); 4086 desc->proto_codeset = SVPD_ID_CODESET_BINARY; 4087 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | 4088 SVPD_ID_TYPE_NAA; 4089 desc->length = hex2bin(naa, desc->identifier, 16); 4090 desc->length = desc->length > 8 ? 16 : 8; 4091 len -= 16 - desc->length; 4092 } 4093 lun->lun_devid->len = len; 4094 4095 mtx_lock(&ctl_softc->ctl_lock); 4096 /* 4097 * See if the caller requested a particular LUN number. If so, see 4098 * if it is available. Otherwise, allocate the first available LUN. 4099 */ 4100 if (be_lun->flags & CTL_LUN_FLAG_ID_REQ) { 4101 if ((be_lun->req_lun_id > (CTL_MAX_LUNS - 1)) 4102 || (ctl_is_set(ctl_softc->ctl_lun_mask, be_lun->req_lun_id))) { 4103 mtx_unlock(&ctl_softc->ctl_lock); 4104 if (be_lun->req_lun_id > (CTL_MAX_LUNS - 1)) { 4105 printf("ctl: requested LUN ID %d is higher " 4106 "than CTL_MAX_LUNS - 1 (%d)\n", 4107 be_lun->req_lun_id, CTL_MAX_LUNS - 1); 4108 } else { 4109 /* 4110 * XXX KDM return an error, or just assign 4111 * another LUN ID in this case?? 4112 */ 4113 printf("ctl: requested LUN ID %d is already " 4114 "in use\n", be_lun->req_lun_id); 4115 } 4116 if (lun->flags & CTL_LUN_MALLOCED) 4117 free(lun, M_CTL); 4118 be_lun->lun_config_status(be_lun->be_lun, 4119 CTL_LUN_CONFIG_FAILURE); 4120 return (ENOSPC); 4121 } 4122 lun_number = be_lun->req_lun_id; 4123 } else { 4124 lun_number = ctl_ffz(ctl_softc->ctl_lun_mask, CTL_MAX_LUNS); 4125 if (lun_number == -1) { 4126 mtx_unlock(&ctl_softc->ctl_lock); 4127 printf("ctl: can't allocate LUN, out of LUNs\n"); 4128 if (lun->flags & CTL_LUN_MALLOCED) 4129 free(lun, M_CTL); 4130 be_lun->lun_config_status(be_lun->be_lun, 4131 CTL_LUN_CONFIG_FAILURE); 4132 return (ENOSPC); 4133 } 4134 } 4135 ctl_set_mask(ctl_softc->ctl_lun_mask, lun_number); 4136 4137 mtx_init(&lun->lun_lock, "CTL LUN", NULL, MTX_DEF); 4138 lun->lun = lun_number; 4139 lun->be_lun = be_lun; 4140 /* 4141 * The processor LUN is always enabled. Disk LUNs come on line 4142 * disabled, and must be enabled by the backend. 4143 */ 4144 lun->flags |= CTL_LUN_DISABLED; 4145 lun->backend = be_lun->be; 4146 be_lun->ctl_lun = lun; 4147 be_lun->lun_id = lun_number; 4148 atomic_add_int(&be_lun->be->num_luns, 1); 4149 if (be_lun->flags & CTL_LUN_FLAG_OFFLINE) 4150 lun->flags |= CTL_LUN_OFFLINE; 4151 4152 if (be_lun->flags & CTL_LUN_FLAG_POWERED_OFF) 4153 lun->flags |= CTL_LUN_STOPPED; 4154 4155 if (be_lun->flags & CTL_LUN_FLAG_INOPERABLE) 4156 lun->flags |= CTL_LUN_INOPERABLE; 4157 4158 if (be_lun->flags & CTL_LUN_FLAG_PRIMARY) 4159 lun->flags |= CTL_LUN_PRIMARY_SC; 4160 4161 lun->ctl_softc = ctl_softc; 4162#ifdef CTL_TIME_IO 4163 lun->last_busy = getsbinuptime(); 4164#endif 4165 TAILQ_INIT(&lun->ooa_queue); 4166 TAILQ_INIT(&lun->blocked_queue); 4167 STAILQ_INIT(&lun->error_list); 4168 ctl_tpc_lun_init(lun); 4169 4170 /* 4171 * Initialize the mode and log page index. 4172 */ 4173 ctl_init_page_index(lun); 4174 ctl_init_log_page_index(lun); 4175 4176 /* 4177 * Now, before we insert this lun on the lun list, set the lun 4178 * inventory changed UA for all other luns. 4179 */ 4180 STAILQ_FOREACH(nlun, &ctl_softc->lun_list, links) { 4181 mtx_lock(&nlun->lun_lock); 4182 ctl_est_ua_all(nlun, -1, CTL_UA_LUN_CHANGE); 4183 mtx_unlock(&nlun->lun_lock); 4184 } 4185 4186 STAILQ_INSERT_TAIL(&ctl_softc->lun_list, lun, links); 4187 4188 ctl_softc->ctl_luns[lun_number] = lun; 4189 4190 ctl_softc->num_luns++; 4191 4192 /* Setup statistics gathering */ 4193 lun->stats.device_type = be_lun->lun_type; 4194 lun->stats.lun_number = lun_number; 4195 if (lun->stats.device_type == T_DIRECT) 4196 lun->stats.blocksize = be_lun->blocksize; 4197 else 4198 lun->stats.flags = CTL_LUN_STATS_NO_BLOCKSIZE; 4199 for (i = 0;i < CTL_MAX_PORTS;i++) 4200 lun->stats.ports[i].targ_port = i; 4201 4202 mtx_unlock(&ctl_softc->ctl_lock); 4203 4204 lun->be_lun->lun_config_status(lun->be_lun->be_lun, CTL_LUN_CONFIG_OK); 4205 return (0); 4206} 4207 4208/* 4209 * Delete a LUN. 4210 * Assumptions: 4211 * - LUN has already been marked invalid and any pending I/O has been taken 4212 * care of. 4213 */ 4214static int 4215ctl_free_lun(struct ctl_lun *lun) 4216{ 4217 struct ctl_softc *softc; 4218 struct ctl_lun *nlun; 4219 int i; 4220 4221 softc = lun->ctl_softc; 4222 4223 mtx_assert(&softc->ctl_lock, MA_OWNED); 4224 4225 STAILQ_REMOVE(&softc->lun_list, lun, ctl_lun, links); 4226 4227 ctl_clear_mask(softc->ctl_lun_mask, lun->lun); 4228 4229 softc->ctl_luns[lun->lun] = NULL; 4230 4231 if (!TAILQ_EMPTY(&lun->ooa_queue)) 4232 panic("Freeing a LUN %p with outstanding I/O!!\n", lun); 4233 4234 softc->num_luns--; 4235 4236 /* 4237 * Tell the backend to free resources, if this LUN has a backend. 4238 */ 4239 atomic_subtract_int(&lun->be_lun->be->num_luns, 1); 4240 lun->be_lun->lun_shutdown(lun->be_lun->be_lun); 4241 4242 ctl_tpc_lun_shutdown(lun); 4243 mtx_destroy(&lun->lun_lock); 4244 free(lun->lun_devid, M_CTL); 4245 for (i = 0; i < CTL_MAX_PORTS; i++) 4246 free(lun->pending_ua[i], M_CTL); 4247 for (i = 0; i < 2 * CTL_MAX_PORTS; i++) 4248 free(lun->pr_keys[i], M_CTL); 4249 free(lun->write_buffer, M_CTL); 4250 if (lun->flags & CTL_LUN_MALLOCED) 4251 free(lun, M_CTL); 4252 4253 STAILQ_FOREACH(nlun, &softc->lun_list, links) { 4254 mtx_lock(&nlun->lun_lock); 4255 ctl_est_ua_all(nlun, -1, CTL_UA_LUN_CHANGE); 4256 mtx_unlock(&nlun->lun_lock); 4257 } 4258 4259 return (0); 4260} 4261 4262static void 4263ctl_create_lun(struct ctl_be_lun *be_lun) 4264{ 4265 struct ctl_softc *softc; 4266 4267 softc = control_softc; 4268 4269 /* 4270 * ctl_alloc_lun() should handle all potential failure cases. 4271 */ 4272 ctl_alloc_lun(softc, NULL, be_lun); 4273} 4274 4275int 4276ctl_add_lun(struct ctl_be_lun *be_lun) 4277{ 4278 struct ctl_softc *softc = control_softc; 4279 4280 mtx_lock(&softc->ctl_lock); 4281 STAILQ_INSERT_TAIL(&softc->pending_lun_queue, be_lun, links); 4282 mtx_unlock(&softc->ctl_lock); 4283 wakeup(&softc->pending_lun_queue); 4284 4285 return (0); 4286} 4287 4288int 4289ctl_enable_lun(struct ctl_be_lun *be_lun) 4290{ 4291 struct ctl_softc *softc; 4292 struct ctl_port *port, *nport; 4293 struct ctl_lun *lun; 4294 int retval; 4295 4296 lun = (struct ctl_lun *)be_lun->ctl_lun; 4297 softc = lun->ctl_softc; 4298 4299 mtx_lock(&softc->ctl_lock); 4300 mtx_lock(&lun->lun_lock); 4301 if ((lun->flags & CTL_LUN_DISABLED) == 0) { 4302 /* 4303 * eh? Why did we get called if the LUN is already 4304 * enabled? 4305 */ 4306 mtx_unlock(&lun->lun_lock); 4307 mtx_unlock(&softc->ctl_lock); 4308 return (0); 4309 } 4310 lun->flags &= ~CTL_LUN_DISABLED; 4311 mtx_unlock(&lun->lun_lock); 4312 4313 for (port = STAILQ_FIRST(&softc->port_list); port != NULL; port = nport) { 4314 nport = STAILQ_NEXT(port, links); 4315 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0 || 4316 port->lun_map != NULL || port->lun_enable == NULL) 4317 continue; 4318 4319 /* 4320 * Drop the lock while we call the FETD's enable routine. 4321 * This can lead to a callback into CTL (at least in the 4322 * case of the internal initiator frontend. 4323 */ 4324 mtx_unlock(&softc->ctl_lock); 4325 retval = port->lun_enable(port->targ_lun_arg, lun->lun); 4326 mtx_lock(&softc->ctl_lock); 4327 if (retval != 0) { 4328 printf("%s: FETD %s port %d returned error " 4329 "%d for lun_enable on lun %jd\n", 4330 __func__, port->port_name, port->targ_port, 4331 retval, (intmax_t)lun->lun); 4332 } 4333 } 4334 4335 mtx_unlock(&softc->ctl_lock); 4336 4337 return (0); 4338} 4339 4340int 4341ctl_disable_lun(struct ctl_be_lun *be_lun) 4342{ 4343 struct ctl_softc *softc; 4344 struct ctl_port *port; 4345 struct ctl_lun *lun; 4346 int retval; 4347 4348 lun = (struct ctl_lun *)be_lun->ctl_lun; 4349 softc = lun->ctl_softc; 4350 4351 mtx_lock(&softc->ctl_lock); 4352 mtx_lock(&lun->lun_lock); 4353 if (lun->flags & CTL_LUN_DISABLED) { 4354 mtx_unlock(&lun->lun_lock); 4355 mtx_unlock(&softc->ctl_lock); 4356 return (0); 4357 } 4358 lun->flags |= CTL_LUN_DISABLED; 4359 mtx_unlock(&lun->lun_lock); 4360 4361 STAILQ_FOREACH(port, &softc->port_list, links) { 4362 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0 || 4363 port->lun_map != NULL || port->lun_disable == NULL) 4364 continue; 4365 4366 /* 4367 * Drop the lock before we call the frontend's disable 4368 * routine, to avoid lock order reversals. 4369 * 4370 * XXX KDM what happens if the frontend list changes while 4371 * we're traversing it? It's unlikely, but should be handled. 4372 */ 4373 mtx_unlock(&softc->ctl_lock); 4374 retval = port->lun_disable(port->targ_lun_arg, lun->lun); 4375 mtx_lock(&softc->ctl_lock); 4376 if (retval != 0) { 4377 printf("%s: FETD %s port %d returned error " 4378 "%d for lun_disable on lun %jd\n", 4379 __func__, port->port_name, port->targ_port, 4380 retval, (intmax_t)lun->lun); 4381 } 4382 } 4383 4384 mtx_unlock(&softc->ctl_lock); 4385 4386 return (0); 4387} 4388 4389int 4390ctl_start_lun(struct ctl_be_lun *be_lun) 4391{ 4392 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 4393 4394 mtx_lock(&lun->lun_lock); 4395 lun->flags &= ~CTL_LUN_STOPPED; 4396 mtx_unlock(&lun->lun_lock); 4397 return (0); 4398} 4399 4400int 4401ctl_stop_lun(struct ctl_be_lun *be_lun) 4402{ 4403 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 4404 4405 mtx_lock(&lun->lun_lock); 4406 lun->flags |= CTL_LUN_STOPPED; 4407 mtx_unlock(&lun->lun_lock); 4408 return (0); 4409} 4410 4411int 4412ctl_lun_offline(struct ctl_be_lun *be_lun) 4413{ 4414 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 4415 4416 mtx_lock(&lun->lun_lock); 4417 lun->flags |= CTL_LUN_OFFLINE; 4418 mtx_unlock(&lun->lun_lock); 4419 return (0); 4420} 4421 4422int 4423ctl_lun_online(struct ctl_be_lun *be_lun) 4424{ 4425 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 4426 4427 mtx_lock(&lun->lun_lock); 4428 lun->flags &= ~CTL_LUN_OFFLINE; 4429 mtx_unlock(&lun->lun_lock); 4430 return (0); 4431} 4432 4433int 4434ctl_invalidate_lun(struct ctl_be_lun *be_lun) 4435{ 4436 struct ctl_softc *softc; 4437 struct ctl_lun *lun; 4438 4439 lun = (struct ctl_lun *)be_lun->ctl_lun; 4440 softc = lun->ctl_softc; 4441 4442 mtx_lock(&lun->lun_lock); 4443 4444 /* 4445 * The LUN needs to be disabled before it can be marked invalid. 4446 */ 4447 if ((lun->flags & CTL_LUN_DISABLED) == 0) { 4448 mtx_unlock(&lun->lun_lock); 4449 return (-1); 4450 } 4451 /* 4452 * Mark the LUN invalid. 4453 */ 4454 lun->flags |= CTL_LUN_INVALID; 4455 4456 /* 4457 * If there is nothing in the OOA queue, go ahead and free the LUN. 4458 * If we have something in the OOA queue, we'll free it when the 4459 * last I/O completes. 4460 */ 4461 if (TAILQ_EMPTY(&lun->ooa_queue)) { 4462 mtx_unlock(&lun->lun_lock); 4463 mtx_lock(&softc->ctl_lock); 4464 ctl_free_lun(lun); 4465 mtx_unlock(&softc->ctl_lock); 4466 } else 4467 mtx_unlock(&lun->lun_lock); 4468 4469 return (0); 4470} 4471 4472int 4473ctl_lun_inoperable(struct ctl_be_lun *be_lun) 4474{ 4475 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 4476 4477 mtx_lock(&lun->lun_lock); 4478 lun->flags |= CTL_LUN_INOPERABLE; 4479 mtx_unlock(&lun->lun_lock); 4480 return (0); 4481} 4482 4483int 4484ctl_lun_operable(struct ctl_be_lun *be_lun) 4485{ 4486 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 4487 4488 mtx_lock(&lun->lun_lock); 4489 lun->flags &= ~CTL_LUN_INOPERABLE; 4490 mtx_unlock(&lun->lun_lock); 4491 return (0); 4492} 4493 4494void 4495ctl_lun_capacity_changed(struct ctl_be_lun *be_lun) 4496{ 4497 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 4498 4499 mtx_lock(&lun->lun_lock); 4500 ctl_est_ua_all(lun, -1, CTL_UA_CAPACITY_CHANGED); 4501 mtx_unlock(&lun->lun_lock); 4502} 4503 4504/* 4505 * Backend "memory move is complete" callback for requests that never 4506 * make it down to say RAIDCore's configuration code. 4507 */ 4508int 4509ctl_config_move_done(union ctl_io *io) 4510{ 4511 int retval; 4512 4513 CTL_DEBUG_PRINT(("ctl_config_move_done\n")); 4514 KASSERT(io->io_hdr.io_type == CTL_IO_SCSI, 4515 ("Config I/O type isn't CTL_IO_SCSI (%d)!", io->io_hdr.io_type)); 4516 4517 if ((io->io_hdr.port_status != 0) && 4518 ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE || 4519 (io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS)) { 4520 /* 4521 * For hardware error sense keys, the sense key 4522 * specific value is defined to be a retry count, 4523 * but we use it to pass back an internal FETD 4524 * error code. XXX KDM Hopefully the FETD is only 4525 * using 16 bits for an error code, since that's 4526 * all the space we have in the sks field. 4527 */ 4528 ctl_set_internal_failure(&io->scsiio, 4529 /*sks_valid*/ 1, 4530 /*retry_count*/ 4531 io->io_hdr.port_status); 4532 } 4533 4534 if (((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_IN) || 4535 ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE && 4536 (io->io_hdr.status & CTL_STATUS_MASK) != CTL_SUCCESS) || 4537 ((io->io_hdr.flags & CTL_FLAG_ABORT) != 0)) { 4538 /* 4539 * XXX KDM just assuming a single pointer here, and not a 4540 * S/G list. If we start using S/G lists for config data, 4541 * we'll need to know how to clean them up here as well. 4542 */ 4543 if (io->io_hdr.flags & CTL_FLAG_ALLOCATED) 4544 free(io->scsiio.kern_data_ptr, M_CTL); 4545 ctl_done(io); 4546 retval = CTL_RETVAL_COMPLETE; 4547 } else { 4548 /* 4549 * XXX KDM now we need to continue data movement. Some 4550 * options: 4551 * - call ctl_scsiio() again? We don't do this for data 4552 * writes, because for those at least we know ahead of 4553 * time where the write will go and how long it is. For 4554 * config writes, though, that information is largely 4555 * contained within the write itself, thus we need to 4556 * parse out the data again. 4557 * 4558 * - Call some other function once the data is in? 4559 */ 4560 if (ctl_debug & CTL_DEBUG_CDB_DATA) 4561 ctl_data_print(io); 4562 4563 /* 4564 * XXX KDM call ctl_scsiio() again for now, and check flag 4565 * bits to see whether we're allocated or not. 4566 */ 4567 retval = ctl_scsiio(&io->scsiio); 4568 } 4569 return (retval); 4570} 4571 4572/* 4573 * This gets called by a backend driver when it is done with a 4574 * data_submit method. 4575 */ 4576void 4577ctl_data_submit_done(union ctl_io *io) 4578{ 4579 /* 4580 * If the IO_CONT flag is set, we need to call the supplied 4581 * function to continue processing the I/O, instead of completing 4582 * the I/O just yet. 4583 * 4584 * If there is an error, though, we don't want to keep processing. 4585 * Instead, just send status back to the initiator. 4586 */ 4587 if ((io->io_hdr.flags & CTL_FLAG_IO_CONT) && 4588 (io->io_hdr.flags & CTL_FLAG_ABORT) == 0 && 4589 ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE || 4590 (io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS)) { 4591 io->scsiio.io_cont(io); 4592 return; 4593 } 4594 ctl_done(io); 4595} 4596 4597/* 4598 * This gets called by a backend driver when it is done with a 4599 * configuration write. 4600 */ 4601void 4602ctl_config_write_done(union ctl_io *io) 4603{ 4604 uint8_t *buf; 4605 4606 /* 4607 * If the IO_CONT flag is set, we need to call the supplied 4608 * function to continue processing the I/O, instead of completing 4609 * the I/O just yet. 4610 * 4611 * If there is an error, though, we don't want to keep processing. 4612 * Instead, just send status back to the initiator. 4613 */ 4614 if ((io->io_hdr.flags & CTL_FLAG_IO_CONT) && 4615 (io->io_hdr.flags & CTL_FLAG_ABORT) == 0 && 4616 ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE || 4617 (io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS)) { 4618 io->scsiio.io_cont(io); 4619 return; 4620 } 4621 /* 4622 * Since a configuration write can be done for commands that actually 4623 * have data allocated, like write buffer, and commands that have 4624 * no data, like start/stop unit, we need to check here. 4625 */ 4626 if (io->io_hdr.flags & CTL_FLAG_ALLOCATED) 4627 buf = io->scsiio.kern_data_ptr; 4628 else 4629 buf = NULL; 4630 ctl_done(io); 4631 if (buf) 4632 free(buf, M_CTL); 4633} 4634 4635void 4636ctl_config_read_done(union ctl_io *io) 4637{ 4638 uint8_t *buf; 4639 4640 /* 4641 * If there is some error -- we are done, skip data transfer. 4642 */ 4643 if ((io->io_hdr.flags & CTL_FLAG_ABORT) != 0 || 4644 ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE && 4645 (io->io_hdr.status & CTL_STATUS_MASK) != CTL_SUCCESS)) { 4646 if (io->io_hdr.flags & CTL_FLAG_ALLOCATED) 4647 buf = io->scsiio.kern_data_ptr; 4648 else 4649 buf = NULL; 4650 ctl_done(io); 4651 if (buf) 4652 free(buf, M_CTL); 4653 return; 4654 } 4655 4656 /* 4657 * If the IO_CONT flag is set, we need to call the supplied 4658 * function to continue processing the I/O, instead of completing 4659 * the I/O just yet. 4660 */ 4661 if (io->io_hdr.flags & CTL_FLAG_IO_CONT) { 4662 io->scsiio.io_cont(io); 4663 return; 4664 } 4665 4666 ctl_datamove(io); 4667} 4668 4669/* 4670 * SCSI release command. 4671 */ 4672int 4673ctl_scsi_release(struct ctl_scsiio *ctsio) 4674{ 4675 int length, longid, thirdparty_id, resv_id; 4676 struct ctl_lun *lun; 4677 uint32_t residx; 4678 4679 length = 0; 4680 resv_id = 0; 4681 4682 CTL_DEBUG_PRINT(("ctl_scsi_release\n")); 4683 4684 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 4685 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 4686 4687 switch (ctsio->cdb[0]) { 4688 case RELEASE_10: { 4689 struct scsi_release_10 *cdb; 4690 4691 cdb = (struct scsi_release_10 *)ctsio->cdb; 4692 4693 if (cdb->byte2 & SR10_LONGID) 4694 longid = 1; 4695 else 4696 thirdparty_id = cdb->thirdparty_id; 4697 4698 resv_id = cdb->resv_id; 4699 length = scsi_2btoul(cdb->length); 4700 break; 4701 } 4702 } 4703 4704 4705 /* 4706 * XXX KDM right now, we only support LUN reservation. We don't 4707 * support 3rd party reservations, or extent reservations, which 4708 * might actually need the parameter list. If we've gotten this 4709 * far, we've got a LUN reservation. Anything else got kicked out 4710 * above. So, according to SPC, ignore the length. 4711 */ 4712 length = 0; 4713 4714 if (((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) 4715 && (length > 0)) { 4716 ctsio->kern_data_ptr = malloc(length, M_CTL, M_WAITOK); 4717 ctsio->kern_data_len = length; 4718 ctsio->kern_total_len = length; 4719 ctsio->kern_data_resid = 0; 4720 ctsio->kern_rel_offset = 0; 4721 ctsio->kern_sg_entries = 0; 4722 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 4723 ctsio->be_move_done = ctl_config_move_done; 4724 ctl_datamove((union ctl_io *)ctsio); 4725 4726 return (CTL_RETVAL_COMPLETE); 4727 } 4728 4729 if (length > 0) 4730 thirdparty_id = scsi_8btou64(ctsio->kern_data_ptr); 4731 4732 mtx_lock(&lun->lun_lock); 4733 4734 /* 4735 * According to SPC, it is not an error for an intiator to attempt 4736 * to release a reservation on a LUN that isn't reserved, or that 4737 * is reserved by another initiator. The reservation can only be 4738 * released, though, by the initiator who made it or by one of 4739 * several reset type events. 4740 */ 4741 if ((lun->flags & CTL_LUN_RESERVED) && (lun->res_idx == residx)) 4742 lun->flags &= ~CTL_LUN_RESERVED; 4743 4744 mtx_unlock(&lun->lun_lock); 4745 4746 if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) { 4747 free(ctsio->kern_data_ptr, M_CTL); 4748 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED; 4749 } 4750 4751 ctl_set_success(ctsio); 4752 ctl_done((union ctl_io *)ctsio); 4753 return (CTL_RETVAL_COMPLETE); 4754} 4755 4756int 4757ctl_scsi_reserve(struct ctl_scsiio *ctsio) 4758{ 4759 int extent, thirdparty, longid; 4760 int resv_id, length; 4761 uint64_t thirdparty_id; 4762 struct ctl_lun *lun; 4763 uint32_t residx; 4764 4765 extent = 0; 4766 thirdparty = 0; 4767 longid = 0; 4768 resv_id = 0; 4769 length = 0; 4770 thirdparty_id = 0; 4771 4772 CTL_DEBUG_PRINT(("ctl_reserve\n")); 4773 4774 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 4775 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 4776 4777 switch (ctsio->cdb[0]) { 4778 case RESERVE_10: { 4779 struct scsi_reserve_10 *cdb; 4780 4781 cdb = (struct scsi_reserve_10 *)ctsio->cdb; 4782 4783 if (cdb->byte2 & SR10_LONGID) 4784 longid = 1; 4785 else 4786 thirdparty_id = cdb->thirdparty_id; 4787 4788 resv_id = cdb->resv_id; 4789 length = scsi_2btoul(cdb->length); 4790 break; 4791 } 4792 } 4793 4794 /* 4795 * XXX KDM right now, we only support LUN reservation. We don't 4796 * support 3rd party reservations, or extent reservations, which 4797 * might actually need the parameter list. If we've gotten this 4798 * far, we've got a LUN reservation. Anything else got kicked out 4799 * above. So, according to SPC, ignore the length. 4800 */ 4801 length = 0; 4802 4803 if (((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) 4804 && (length > 0)) { 4805 ctsio->kern_data_ptr = malloc(length, M_CTL, M_WAITOK); 4806 ctsio->kern_data_len = length; 4807 ctsio->kern_total_len = length; 4808 ctsio->kern_data_resid = 0; 4809 ctsio->kern_rel_offset = 0; 4810 ctsio->kern_sg_entries = 0; 4811 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 4812 ctsio->be_move_done = ctl_config_move_done; 4813 ctl_datamove((union ctl_io *)ctsio); 4814 4815 return (CTL_RETVAL_COMPLETE); 4816 } 4817 4818 if (length > 0) 4819 thirdparty_id = scsi_8btou64(ctsio->kern_data_ptr); 4820 4821 mtx_lock(&lun->lun_lock); 4822 if ((lun->flags & CTL_LUN_RESERVED) && (lun->res_idx != residx)) { 4823 ctl_set_reservation_conflict(ctsio); 4824 goto bailout; 4825 } 4826 4827 lun->flags |= CTL_LUN_RESERVED; 4828 lun->res_idx = residx; 4829 4830 ctl_set_success(ctsio); 4831 4832bailout: 4833 mtx_unlock(&lun->lun_lock); 4834 4835 if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) { 4836 free(ctsio->kern_data_ptr, M_CTL); 4837 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED; 4838 } 4839 4840 ctl_done((union ctl_io *)ctsio); 4841 return (CTL_RETVAL_COMPLETE); 4842} 4843 4844int 4845ctl_start_stop(struct ctl_scsiio *ctsio) 4846{ 4847 struct scsi_start_stop_unit *cdb; 4848 struct ctl_lun *lun; 4849 int retval; 4850 4851 CTL_DEBUG_PRINT(("ctl_start_stop\n")); 4852 4853 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 4854 retval = 0; 4855 4856 cdb = (struct scsi_start_stop_unit *)ctsio->cdb; 4857 4858 /* 4859 * XXX KDM 4860 * We don't support the immediate bit on a stop unit. In order to 4861 * do that, we would need to code up a way to know that a stop is 4862 * pending, and hold off any new commands until it completes, one 4863 * way or another. Then we could accept or reject those commands 4864 * depending on its status. We would almost need to do the reverse 4865 * of what we do below for an immediate start -- return the copy of 4866 * the ctl_io to the FETD with status to send to the host (and to 4867 * free the copy!) and then free the original I/O once the stop 4868 * actually completes. That way, the OOA queue mechanism can work 4869 * to block commands that shouldn't proceed. Another alternative 4870 * would be to put the copy in the queue in place of the original, 4871 * and return the original back to the caller. That could be 4872 * slightly safer.. 4873 */ 4874 if ((cdb->byte2 & SSS_IMMED) 4875 && ((cdb->how & SSS_START) == 0)) { 4876 ctl_set_invalid_field(ctsio, 4877 /*sks_valid*/ 1, 4878 /*command*/ 1, 4879 /*field*/ 1, 4880 /*bit_valid*/ 1, 4881 /*bit*/ 0); 4882 ctl_done((union ctl_io *)ctsio); 4883 return (CTL_RETVAL_COMPLETE); 4884 } 4885 4886 if ((lun->flags & CTL_LUN_PR_RESERVED) 4887 && ((cdb->how & SSS_START)==0)) { 4888 uint32_t residx; 4889 4890 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 4891 if (ctl_get_prkey(lun, residx) == 0 4892 || (lun->pr_res_idx!=residx && lun->res_type < 4)) { 4893 4894 ctl_set_reservation_conflict(ctsio); 4895 ctl_done((union ctl_io *)ctsio); 4896 return (CTL_RETVAL_COMPLETE); 4897 } 4898 } 4899 4900 /* 4901 * If there is no backend on this device, we can't start or stop 4902 * it. In theory we shouldn't get any start/stop commands in the 4903 * first place at this level if the LUN doesn't have a backend. 4904 * That should get stopped by the command decode code. 4905 */ 4906 if (lun->backend == NULL) { 4907 ctl_set_invalid_opcode(ctsio); 4908 ctl_done((union ctl_io *)ctsio); 4909 return (CTL_RETVAL_COMPLETE); 4910 } 4911 4912 /* 4913 * XXX KDM Copan-specific offline behavior. 4914 * Figure out a reasonable way to port this? 4915 */ 4916#ifdef NEEDTOPORT 4917 mtx_lock(&lun->lun_lock); 4918 4919 if (((cdb->byte2 & SSS_ONOFFLINE) == 0) 4920 && (lun->flags & CTL_LUN_OFFLINE)) { 4921 /* 4922 * If the LUN is offline, and the on/offline bit isn't set, 4923 * reject the start or stop. Otherwise, let it through. 4924 */ 4925 mtx_unlock(&lun->lun_lock); 4926 ctl_set_lun_not_ready(ctsio); 4927 ctl_done((union ctl_io *)ctsio); 4928 } else { 4929 mtx_unlock(&lun->lun_lock); 4930#endif /* NEEDTOPORT */ 4931 /* 4932 * This could be a start or a stop when we're online, 4933 * or a stop/offline or start/online. A start or stop when 4934 * we're offline is covered in the case above. 4935 */ 4936 /* 4937 * In the non-immediate case, we send the request to 4938 * the backend and return status to the user when 4939 * it is done. 4940 * 4941 * In the immediate case, we allocate a new ctl_io 4942 * to hold a copy of the request, and send that to 4943 * the backend. We then set good status on the 4944 * user's request and return it immediately. 4945 */ 4946 if (cdb->byte2 & SSS_IMMED) { 4947 union ctl_io *new_io; 4948 4949 new_io = ctl_alloc_io(ctsio->io_hdr.pool); 4950 ctl_copy_io((union ctl_io *)ctsio, new_io); 4951 retval = lun->backend->config_write(new_io); 4952 ctl_set_success(ctsio); 4953 ctl_done((union ctl_io *)ctsio); 4954 } else { 4955 retval = lun->backend->config_write( 4956 (union ctl_io *)ctsio); 4957 } 4958#ifdef NEEDTOPORT 4959 } 4960#endif 4961 return (retval); 4962} 4963 4964/* 4965 * We support the SYNCHRONIZE CACHE command (10 and 16 byte versions), but 4966 * we don't really do anything with the LBA and length fields if the user 4967 * passes them in. Instead we'll just flush out the cache for the entire 4968 * LUN. 4969 */ 4970int 4971ctl_sync_cache(struct ctl_scsiio *ctsio) 4972{ 4973 struct ctl_lun *lun; 4974 struct ctl_softc *softc; 4975 struct ctl_lba_len_flags *lbalen; 4976 uint64_t starting_lba; 4977 uint32_t block_count; 4978 int retval; 4979 uint8_t byte2; 4980 4981 CTL_DEBUG_PRINT(("ctl_sync_cache\n")); 4982 4983 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 4984 softc = lun->ctl_softc; 4985 retval = 0; 4986 4987 switch (ctsio->cdb[0]) { 4988 case SYNCHRONIZE_CACHE: { 4989 struct scsi_sync_cache *cdb; 4990 cdb = (struct scsi_sync_cache *)ctsio->cdb; 4991 4992 starting_lba = scsi_4btoul(cdb->begin_lba); 4993 block_count = scsi_2btoul(cdb->lb_count); 4994 byte2 = cdb->byte2; 4995 break; 4996 } 4997 case SYNCHRONIZE_CACHE_16: { 4998 struct scsi_sync_cache_16 *cdb; 4999 cdb = (struct scsi_sync_cache_16 *)ctsio->cdb; 5000 5001 starting_lba = scsi_8btou64(cdb->begin_lba); 5002 block_count = scsi_4btoul(cdb->lb_count); 5003 byte2 = cdb->byte2; 5004 break; 5005 } 5006 default: 5007 ctl_set_invalid_opcode(ctsio); 5008 ctl_done((union ctl_io *)ctsio); 5009 goto bailout; 5010 break; /* NOTREACHED */ 5011 } 5012 5013 /* 5014 * We check the LBA and length, but don't do anything with them. 5015 * A SYNCHRONIZE CACHE will cause the entire cache for this lun to 5016 * get flushed. This check will just help satisfy anyone who wants 5017 * to see an error for an out of range LBA. 5018 */ 5019 if ((starting_lba + block_count) > (lun->be_lun->maxlba + 1)) { 5020 ctl_set_lba_out_of_range(ctsio); 5021 ctl_done((union ctl_io *)ctsio); 5022 goto bailout; 5023 } 5024 5025 /* 5026 * If this LUN has no backend, we can't flush the cache anyway. 5027 */ 5028 if (lun->backend == NULL) { 5029 ctl_set_invalid_opcode(ctsio); 5030 ctl_done((union ctl_io *)ctsio); 5031 goto bailout; 5032 } 5033 5034 lbalen = (struct ctl_lba_len_flags *)&ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 5035 lbalen->lba = starting_lba; 5036 lbalen->len = block_count; 5037 lbalen->flags = byte2; 5038 5039 /* 5040 * Check to see whether we're configured to send the SYNCHRONIZE 5041 * CACHE command directly to the back end. 5042 */ 5043 mtx_lock(&lun->lun_lock); 5044 if ((softc->flags & CTL_FLAG_REAL_SYNC) 5045 && (++(lun->sync_count) >= lun->sync_interval)) { 5046 lun->sync_count = 0; 5047 mtx_unlock(&lun->lun_lock); 5048 retval = lun->backend->config_write((union ctl_io *)ctsio); 5049 } else { 5050 mtx_unlock(&lun->lun_lock); 5051 ctl_set_success(ctsio); 5052 ctl_done((union ctl_io *)ctsio); 5053 } 5054 5055bailout: 5056 5057 return (retval); 5058} 5059 5060int 5061ctl_format(struct ctl_scsiio *ctsio) 5062{ 5063 struct scsi_format *cdb; 5064 struct ctl_lun *lun; 5065 int length, defect_list_len; 5066 5067 CTL_DEBUG_PRINT(("ctl_format\n")); 5068 5069 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5070 5071 cdb = (struct scsi_format *)ctsio->cdb; 5072 5073 length = 0; 5074 if (cdb->byte2 & SF_FMTDATA) { 5075 if (cdb->byte2 & SF_LONGLIST) 5076 length = sizeof(struct scsi_format_header_long); 5077 else 5078 length = sizeof(struct scsi_format_header_short); 5079 } 5080 5081 if (((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) 5082 && (length > 0)) { 5083 ctsio->kern_data_ptr = malloc(length, M_CTL, M_WAITOK); 5084 ctsio->kern_data_len = length; 5085 ctsio->kern_total_len = length; 5086 ctsio->kern_data_resid = 0; 5087 ctsio->kern_rel_offset = 0; 5088 ctsio->kern_sg_entries = 0; 5089 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5090 ctsio->be_move_done = ctl_config_move_done; 5091 ctl_datamove((union ctl_io *)ctsio); 5092 5093 return (CTL_RETVAL_COMPLETE); 5094 } 5095 5096 defect_list_len = 0; 5097 5098 if (cdb->byte2 & SF_FMTDATA) { 5099 if (cdb->byte2 & SF_LONGLIST) { 5100 struct scsi_format_header_long *header; 5101 5102 header = (struct scsi_format_header_long *) 5103 ctsio->kern_data_ptr; 5104 5105 defect_list_len = scsi_4btoul(header->defect_list_len); 5106 if (defect_list_len != 0) { 5107 ctl_set_invalid_field(ctsio, 5108 /*sks_valid*/ 1, 5109 /*command*/ 0, 5110 /*field*/ 2, 5111 /*bit_valid*/ 0, 5112 /*bit*/ 0); 5113 goto bailout; 5114 } 5115 } else { 5116 struct scsi_format_header_short *header; 5117 5118 header = (struct scsi_format_header_short *) 5119 ctsio->kern_data_ptr; 5120 5121 defect_list_len = scsi_2btoul(header->defect_list_len); 5122 if (defect_list_len != 0) { 5123 ctl_set_invalid_field(ctsio, 5124 /*sks_valid*/ 1, 5125 /*command*/ 0, 5126 /*field*/ 2, 5127 /*bit_valid*/ 0, 5128 /*bit*/ 0); 5129 goto bailout; 5130 } 5131 } 5132 } 5133 5134 /* 5135 * The format command will clear out the "Medium format corrupted" 5136 * status if set by the configuration code. That status is really 5137 * just a way to notify the host that we have lost the media, and 5138 * get them to issue a command that will basically make them think 5139 * they're blowing away the media. 5140 */ 5141 mtx_lock(&lun->lun_lock); 5142 lun->flags &= ~CTL_LUN_INOPERABLE; 5143 mtx_unlock(&lun->lun_lock); 5144 5145 ctl_set_success(ctsio); 5146bailout: 5147 5148 if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) { 5149 free(ctsio->kern_data_ptr, M_CTL); 5150 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED; 5151 } 5152 5153 ctl_done((union ctl_io *)ctsio); 5154 return (CTL_RETVAL_COMPLETE); 5155} 5156 5157int 5158ctl_read_buffer(struct ctl_scsiio *ctsio) 5159{ 5160 struct scsi_read_buffer *cdb; 5161 struct ctl_lun *lun; 5162 int buffer_offset, len; 5163 static uint8_t descr[4]; 5164 static uint8_t echo_descr[4] = { 0 }; 5165 5166 CTL_DEBUG_PRINT(("ctl_read_buffer\n")); 5167 5168 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5169 cdb = (struct scsi_read_buffer *)ctsio->cdb; 5170 5171 if ((cdb->byte2 & RWB_MODE) != RWB_MODE_DATA && 5172 (cdb->byte2 & RWB_MODE) != RWB_MODE_ECHO_DESCR && 5173 (cdb->byte2 & RWB_MODE) != RWB_MODE_DESCR) { 5174 ctl_set_invalid_field(ctsio, 5175 /*sks_valid*/ 1, 5176 /*command*/ 1, 5177 /*field*/ 1, 5178 /*bit_valid*/ 1, 5179 /*bit*/ 4); 5180 ctl_done((union ctl_io *)ctsio); 5181 return (CTL_RETVAL_COMPLETE); 5182 } 5183 5184 len = scsi_3btoul(cdb->length); 5185 buffer_offset = scsi_3btoul(cdb->offset); 5186 5187 if (buffer_offset + len > CTL_WRITE_BUFFER_SIZE) { 5188 ctl_set_invalid_field(ctsio, 5189 /*sks_valid*/ 1, 5190 /*command*/ 1, 5191 /*field*/ 6, 5192 /*bit_valid*/ 0, 5193 /*bit*/ 0); 5194 ctl_done((union ctl_io *)ctsio); 5195 return (CTL_RETVAL_COMPLETE); 5196 } 5197 5198 if ((cdb->byte2 & RWB_MODE) == RWB_MODE_DESCR) { 5199 descr[0] = 0; 5200 scsi_ulto3b(CTL_WRITE_BUFFER_SIZE, &descr[1]); 5201 ctsio->kern_data_ptr = descr; 5202 len = min(len, sizeof(descr)); 5203 } else if ((cdb->byte2 & RWB_MODE) == RWB_MODE_ECHO_DESCR) { 5204 ctsio->kern_data_ptr = echo_descr; 5205 len = min(len, sizeof(echo_descr)); 5206 } else { 5207 if (lun->write_buffer == NULL) { 5208 lun->write_buffer = malloc(CTL_WRITE_BUFFER_SIZE, 5209 M_CTL, M_WAITOK); 5210 } 5211 ctsio->kern_data_ptr = lun->write_buffer + buffer_offset; 5212 } 5213 ctsio->kern_data_len = len; 5214 ctsio->kern_total_len = len; 5215 ctsio->kern_data_resid = 0; 5216 ctsio->kern_rel_offset = 0; 5217 ctsio->kern_sg_entries = 0; 5218 ctl_set_success(ctsio); 5219 ctsio->be_move_done = ctl_config_move_done; 5220 ctl_datamove((union ctl_io *)ctsio); 5221 return (CTL_RETVAL_COMPLETE); 5222} 5223 5224int 5225ctl_write_buffer(struct ctl_scsiio *ctsio) 5226{ 5227 struct scsi_write_buffer *cdb; 5228 struct ctl_lun *lun; 5229 int buffer_offset, len; 5230 5231 CTL_DEBUG_PRINT(("ctl_write_buffer\n")); 5232 5233 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5234 cdb = (struct scsi_write_buffer *)ctsio->cdb; 5235 5236 if ((cdb->byte2 & RWB_MODE) != RWB_MODE_DATA) { 5237 ctl_set_invalid_field(ctsio, 5238 /*sks_valid*/ 1, 5239 /*command*/ 1, 5240 /*field*/ 1, 5241 /*bit_valid*/ 1, 5242 /*bit*/ 4); 5243 ctl_done((union ctl_io *)ctsio); 5244 return (CTL_RETVAL_COMPLETE); 5245 } 5246 5247 len = scsi_3btoul(cdb->length); 5248 buffer_offset = scsi_3btoul(cdb->offset); 5249 5250 if (buffer_offset + len > CTL_WRITE_BUFFER_SIZE) { 5251 ctl_set_invalid_field(ctsio, 5252 /*sks_valid*/ 1, 5253 /*command*/ 1, 5254 /*field*/ 6, 5255 /*bit_valid*/ 0, 5256 /*bit*/ 0); 5257 ctl_done((union ctl_io *)ctsio); 5258 return (CTL_RETVAL_COMPLETE); 5259 } 5260 5261 /* 5262 * If we've got a kernel request that hasn't been malloced yet, 5263 * malloc it and tell the caller the data buffer is here. 5264 */ 5265 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 5266 if (lun->write_buffer == NULL) { 5267 lun->write_buffer = malloc(CTL_WRITE_BUFFER_SIZE, 5268 M_CTL, M_WAITOK); 5269 } 5270 ctsio->kern_data_ptr = lun->write_buffer + buffer_offset; 5271 ctsio->kern_data_len = len; 5272 ctsio->kern_total_len = len; 5273 ctsio->kern_data_resid = 0; 5274 ctsio->kern_rel_offset = 0; 5275 ctsio->kern_sg_entries = 0; 5276 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5277 ctsio->be_move_done = ctl_config_move_done; 5278 ctl_datamove((union ctl_io *)ctsio); 5279 5280 return (CTL_RETVAL_COMPLETE); 5281 } 5282 5283 ctl_set_success(ctsio); 5284 ctl_done((union ctl_io *)ctsio); 5285 return (CTL_RETVAL_COMPLETE); 5286} 5287 5288int 5289ctl_write_same(struct ctl_scsiio *ctsio) 5290{ 5291 struct ctl_lun *lun; 5292 struct ctl_lba_len_flags *lbalen; 5293 uint64_t lba; 5294 uint32_t num_blocks; 5295 int len, retval; 5296 uint8_t byte2; 5297 5298 retval = CTL_RETVAL_COMPLETE; 5299 5300 CTL_DEBUG_PRINT(("ctl_write_same\n")); 5301 5302 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5303 5304 switch (ctsio->cdb[0]) { 5305 case WRITE_SAME_10: { 5306 struct scsi_write_same_10 *cdb; 5307 5308 cdb = (struct scsi_write_same_10 *)ctsio->cdb; 5309 5310 lba = scsi_4btoul(cdb->addr); 5311 num_blocks = scsi_2btoul(cdb->length); 5312 byte2 = cdb->byte2; 5313 break; 5314 } 5315 case WRITE_SAME_16: { 5316 struct scsi_write_same_16 *cdb; 5317 5318 cdb = (struct scsi_write_same_16 *)ctsio->cdb; 5319 5320 lba = scsi_8btou64(cdb->addr); 5321 num_blocks = scsi_4btoul(cdb->length); 5322 byte2 = cdb->byte2; 5323 break; 5324 } 5325 default: 5326 /* 5327 * We got a command we don't support. This shouldn't 5328 * happen, commands should be filtered out above us. 5329 */ 5330 ctl_set_invalid_opcode(ctsio); 5331 ctl_done((union ctl_io *)ctsio); 5332 5333 return (CTL_RETVAL_COMPLETE); 5334 break; /* NOTREACHED */ 5335 } 5336 5337 /* NDOB and ANCHOR flags can be used only together with UNMAP */ 5338 if ((byte2 & SWS_UNMAP) == 0 && 5339 (byte2 & (SWS_NDOB | SWS_ANCHOR)) != 0) { 5340 ctl_set_invalid_field(ctsio, /*sks_valid*/ 1, 5341 /*command*/ 1, /*field*/ 1, /*bit_valid*/ 1, /*bit*/ 0); 5342 ctl_done((union ctl_io *)ctsio); 5343 return (CTL_RETVAL_COMPLETE); 5344 } 5345 5346 /* 5347 * The first check is to make sure we're in bounds, the second 5348 * check is to catch wrap-around problems. If the lba + num blocks 5349 * is less than the lba, then we've wrapped around and the block 5350 * range is invalid anyway. 5351 */ 5352 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 5353 || ((lba + num_blocks) < lba)) { 5354 ctl_set_lba_out_of_range(ctsio); 5355 ctl_done((union ctl_io *)ctsio); 5356 return (CTL_RETVAL_COMPLETE); 5357 } 5358 5359 /* Zero number of blocks means "to the last logical block" */ 5360 if (num_blocks == 0) { 5361 if ((lun->be_lun->maxlba + 1) - lba > UINT32_MAX) { 5362 ctl_set_invalid_field(ctsio, 5363 /*sks_valid*/ 0, 5364 /*command*/ 1, 5365 /*field*/ 0, 5366 /*bit_valid*/ 0, 5367 /*bit*/ 0); 5368 ctl_done((union ctl_io *)ctsio); 5369 return (CTL_RETVAL_COMPLETE); 5370 } 5371 num_blocks = (lun->be_lun->maxlba + 1) - lba; 5372 } 5373 5374 len = lun->be_lun->blocksize; 5375 5376 /* 5377 * If we've got a kernel request that hasn't been malloced yet, 5378 * malloc it and tell the caller the data buffer is here. 5379 */ 5380 if ((byte2 & SWS_NDOB) == 0 && 5381 (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 5382 ctsio->kern_data_ptr = malloc(len, M_CTL, M_WAITOK);; 5383 ctsio->kern_data_len = len; 5384 ctsio->kern_total_len = len; 5385 ctsio->kern_data_resid = 0; 5386 ctsio->kern_rel_offset = 0; 5387 ctsio->kern_sg_entries = 0; 5388 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5389 ctsio->be_move_done = ctl_config_move_done; 5390 ctl_datamove((union ctl_io *)ctsio); 5391 5392 return (CTL_RETVAL_COMPLETE); 5393 } 5394 5395 lbalen = (struct ctl_lba_len_flags *)&ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 5396 lbalen->lba = lba; 5397 lbalen->len = num_blocks; 5398 lbalen->flags = byte2; 5399 retval = lun->backend->config_write((union ctl_io *)ctsio); 5400 5401 return (retval); 5402} 5403 5404int 5405ctl_unmap(struct ctl_scsiio *ctsio) 5406{ 5407 struct ctl_lun *lun; 5408 struct scsi_unmap *cdb; 5409 struct ctl_ptr_len_flags *ptrlen; 5410 struct scsi_unmap_header *hdr; 5411 struct scsi_unmap_desc *buf, *end, *endnz, *range; 5412 uint64_t lba; 5413 uint32_t num_blocks; 5414 int len, retval; 5415 uint8_t byte2; 5416 5417 retval = CTL_RETVAL_COMPLETE; 5418 5419 CTL_DEBUG_PRINT(("ctl_unmap\n")); 5420 5421 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5422 cdb = (struct scsi_unmap *)ctsio->cdb; 5423 5424 len = scsi_2btoul(cdb->length); 5425 byte2 = cdb->byte2; 5426 5427 /* 5428 * If we've got a kernel request that hasn't been malloced yet, 5429 * malloc it and tell the caller the data buffer is here. 5430 */ 5431 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 5432 ctsio->kern_data_ptr = malloc(len, M_CTL, M_WAITOK);; 5433 ctsio->kern_data_len = len; 5434 ctsio->kern_total_len = len; 5435 ctsio->kern_data_resid = 0; 5436 ctsio->kern_rel_offset = 0; 5437 ctsio->kern_sg_entries = 0; 5438 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5439 ctsio->be_move_done = ctl_config_move_done; 5440 ctl_datamove((union ctl_io *)ctsio); 5441 5442 return (CTL_RETVAL_COMPLETE); 5443 } 5444 5445 len = ctsio->kern_total_len - ctsio->kern_data_resid; 5446 hdr = (struct scsi_unmap_header *)ctsio->kern_data_ptr; 5447 if (len < sizeof (*hdr) || 5448 len < (scsi_2btoul(hdr->length) + sizeof(hdr->length)) || 5449 len < (scsi_2btoul(hdr->desc_length) + sizeof (*hdr)) || 5450 scsi_2btoul(hdr->desc_length) % sizeof(*buf) != 0) { 5451 ctl_set_invalid_field(ctsio, 5452 /*sks_valid*/ 0, 5453 /*command*/ 0, 5454 /*field*/ 0, 5455 /*bit_valid*/ 0, 5456 /*bit*/ 0); 5457 goto done; 5458 } 5459 len = scsi_2btoul(hdr->desc_length); 5460 buf = (struct scsi_unmap_desc *)(hdr + 1); 5461 end = buf + len / sizeof(*buf); 5462 5463 endnz = buf; 5464 for (range = buf; range < end; range++) { 5465 lba = scsi_8btou64(range->lba); 5466 num_blocks = scsi_4btoul(range->length); 5467 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 5468 || ((lba + num_blocks) < lba)) { 5469 ctl_set_lba_out_of_range(ctsio); 5470 ctl_done((union ctl_io *)ctsio); 5471 return (CTL_RETVAL_COMPLETE); 5472 } 5473 if (num_blocks != 0) 5474 endnz = range + 1; 5475 } 5476 5477 /* 5478 * Block backend can not handle zero last range. 5479 * Filter it out and return if there is nothing left. 5480 */ 5481 len = (uint8_t *)endnz - (uint8_t *)buf; 5482 if (len == 0) { 5483 ctl_set_success(ctsio); 5484 goto done; 5485 } 5486 5487 mtx_lock(&lun->lun_lock); 5488 ptrlen = (struct ctl_ptr_len_flags *) 5489 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 5490 ptrlen->ptr = (void *)buf; 5491 ptrlen->len = len; 5492 ptrlen->flags = byte2; 5493 ctl_check_blocked(lun); 5494 mtx_unlock(&lun->lun_lock); 5495 5496 retval = lun->backend->config_write((union ctl_io *)ctsio); 5497 return (retval); 5498 5499done: 5500 if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) { 5501 free(ctsio->kern_data_ptr, M_CTL); 5502 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED; 5503 } 5504 ctl_done((union ctl_io *)ctsio); 5505 return (CTL_RETVAL_COMPLETE); 5506} 5507 5508/* 5509 * Note that this function currently doesn't actually do anything inside 5510 * CTL to enforce things if the DQue bit is turned on. 5511 * 5512 * Also note that this function can't be used in the default case, because 5513 * the DQue bit isn't set in the changeable mask for the control mode page 5514 * anyway. This is just here as an example for how to implement a page 5515 * handler, and a placeholder in case we want to allow the user to turn 5516 * tagged queueing on and off. 5517 * 5518 * The D_SENSE bit handling is functional, however, and will turn 5519 * descriptor sense on and off for a given LUN. 5520 */ 5521int 5522ctl_control_page_handler(struct ctl_scsiio *ctsio, 5523 struct ctl_page_index *page_index, uint8_t *page_ptr) 5524{ 5525 struct scsi_control_page *current_cp, *saved_cp, *user_cp; 5526 struct ctl_lun *lun; 5527 int set_ua; 5528 uint32_t initidx; 5529 5530 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5531 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 5532 set_ua = 0; 5533 5534 user_cp = (struct scsi_control_page *)page_ptr; 5535 current_cp = (struct scsi_control_page *) 5536 (page_index->page_data + (page_index->page_len * 5537 CTL_PAGE_CURRENT)); 5538 saved_cp = (struct scsi_control_page *) 5539 (page_index->page_data + (page_index->page_len * 5540 CTL_PAGE_SAVED)); 5541 5542 mtx_lock(&lun->lun_lock); 5543 if (((current_cp->rlec & SCP_DSENSE) == 0) 5544 && ((user_cp->rlec & SCP_DSENSE) != 0)) { 5545 /* 5546 * Descriptor sense is currently turned off and the user 5547 * wants to turn it on. 5548 */ 5549 current_cp->rlec |= SCP_DSENSE; 5550 saved_cp->rlec |= SCP_DSENSE; 5551 lun->flags |= CTL_LUN_SENSE_DESC; 5552 set_ua = 1; 5553 } else if (((current_cp->rlec & SCP_DSENSE) != 0) 5554 && ((user_cp->rlec & SCP_DSENSE) == 0)) { 5555 /* 5556 * Descriptor sense is currently turned on, and the user 5557 * wants to turn it off. 5558 */ 5559 current_cp->rlec &= ~SCP_DSENSE; 5560 saved_cp->rlec &= ~SCP_DSENSE; 5561 lun->flags &= ~CTL_LUN_SENSE_DESC; 5562 set_ua = 1; 5563 } 5564 if ((current_cp->queue_flags & SCP_QUEUE_ALG_MASK) != 5565 (user_cp->queue_flags & SCP_QUEUE_ALG_MASK)) { 5566 current_cp->queue_flags &= ~SCP_QUEUE_ALG_MASK; 5567 current_cp->queue_flags |= user_cp->queue_flags & SCP_QUEUE_ALG_MASK; 5568 saved_cp->queue_flags &= ~SCP_QUEUE_ALG_MASK; 5569 saved_cp->queue_flags |= user_cp->queue_flags & SCP_QUEUE_ALG_MASK; 5570 set_ua = 1; 5571 } 5572 if ((current_cp->eca_and_aen & SCP_SWP) != 5573 (user_cp->eca_and_aen & SCP_SWP)) { 5574 current_cp->eca_and_aen &= ~SCP_SWP; 5575 current_cp->eca_and_aen |= user_cp->eca_and_aen & SCP_SWP; 5576 saved_cp->eca_and_aen &= ~SCP_SWP; 5577 saved_cp->eca_and_aen |= user_cp->eca_and_aen & SCP_SWP; 5578 set_ua = 1; 5579 } 5580 if (set_ua != 0) 5581 ctl_est_ua_all(lun, initidx, CTL_UA_MODE_CHANGE); 5582 mtx_unlock(&lun->lun_lock); 5583 5584 return (0); 5585} 5586 5587int 5588ctl_caching_sp_handler(struct ctl_scsiio *ctsio, 5589 struct ctl_page_index *page_index, uint8_t *page_ptr) 5590{ 5591 struct scsi_caching_page *current_cp, *saved_cp, *user_cp; 5592 struct ctl_lun *lun; 5593 int set_ua; 5594 uint32_t initidx; 5595 5596 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5597 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 5598 set_ua = 0; 5599 5600 user_cp = (struct scsi_caching_page *)page_ptr; 5601 current_cp = (struct scsi_caching_page *) 5602 (page_index->page_data + (page_index->page_len * 5603 CTL_PAGE_CURRENT)); 5604 saved_cp = (struct scsi_caching_page *) 5605 (page_index->page_data + (page_index->page_len * 5606 CTL_PAGE_SAVED)); 5607 5608 mtx_lock(&lun->lun_lock); 5609 if ((current_cp->flags1 & (SCP_WCE | SCP_RCD)) != 5610 (user_cp->flags1 & (SCP_WCE | SCP_RCD))) { 5611 current_cp->flags1 &= ~(SCP_WCE | SCP_RCD); 5612 current_cp->flags1 |= user_cp->flags1 & (SCP_WCE | SCP_RCD); 5613 saved_cp->flags1 &= ~(SCP_WCE | SCP_RCD); 5614 saved_cp->flags1 |= user_cp->flags1 & (SCP_WCE | SCP_RCD); 5615 set_ua = 1; 5616 } 5617 if (set_ua != 0) 5618 ctl_est_ua_all(lun, initidx, CTL_UA_MODE_CHANGE); 5619 mtx_unlock(&lun->lun_lock); 5620 5621 return (0); 5622} 5623 5624int 5625ctl_debugconf_sp_select_handler(struct ctl_scsiio *ctsio, 5626 struct ctl_page_index *page_index, 5627 uint8_t *page_ptr) 5628{ 5629 uint8_t *c; 5630 int i; 5631 5632 c = ((struct copan_debugconf_subpage *)page_ptr)->ctl_time_io_secs; 5633 ctl_time_io_secs = 5634 (c[0] << 8) | 5635 (c[1] << 0) | 5636 0; 5637 CTL_DEBUG_PRINT(("set ctl_time_io_secs to %d\n", ctl_time_io_secs)); 5638 printf("set ctl_time_io_secs to %d\n", ctl_time_io_secs); 5639 printf("page data:"); 5640 for (i=0; i<8; i++) 5641 printf(" %.2x",page_ptr[i]); 5642 printf("\n"); 5643 return (0); 5644} 5645 5646int 5647ctl_debugconf_sp_sense_handler(struct ctl_scsiio *ctsio, 5648 struct ctl_page_index *page_index, 5649 int pc) 5650{ 5651 struct copan_debugconf_subpage *page; 5652 5653 page = (struct copan_debugconf_subpage *)page_index->page_data + 5654 (page_index->page_len * pc); 5655 5656 switch (pc) { 5657 case SMS_PAGE_CTRL_CHANGEABLE >> 6: 5658 case SMS_PAGE_CTRL_DEFAULT >> 6: 5659 case SMS_PAGE_CTRL_SAVED >> 6: 5660 /* 5661 * We don't update the changable or default bits for this page. 5662 */ 5663 break; 5664 case SMS_PAGE_CTRL_CURRENT >> 6: 5665 page->ctl_time_io_secs[0] = ctl_time_io_secs >> 8; 5666 page->ctl_time_io_secs[1] = ctl_time_io_secs >> 0; 5667 break; 5668 default: 5669#ifdef NEEDTOPORT 5670 EPRINT(0, "Invalid PC %d!!", pc); 5671#endif /* NEEDTOPORT */ 5672 break; 5673 } 5674 return (0); 5675} 5676 5677 5678static int 5679ctl_do_mode_select(union ctl_io *io) 5680{ 5681 struct scsi_mode_page_header *page_header; 5682 struct ctl_page_index *page_index; 5683 struct ctl_scsiio *ctsio; 5684 int control_dev, page_len; 5685 int page_len_offset, page_len_size; 5686 union ctl_modepage_info *modepage_info; 5687 struct ctl_lun *lun; 5688 int *len_left, *len_used; 5689 int retval, i; 5690 5691 ctsio = &io->scsiio; 5692 page_index = NULL; 5693 page_len = 0; 5694 retval = CTL_RETVAL_COMPLETE; 5695 5696 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5697 5698 if (lun->be_lun->lun_type != T_DIRECT) 5699 control_dev = 1; 5700 else 5701 control_dev = 0; 5702 5703 modepage_info = (union ctl_modepage_info *) 5704 ctsio->io_hdr.ctl_private[CTL_PRIV_MODEPAGE].bytes; 5705 len_left = &modepage_info->header.len_left; 5706 len_used = &modepage_info->header.len_used; 5707 5708do_next_page: 5709 5710 page_header = (struct scsi_mode_page_header *) 5711 (ctsio->kern_data_ptr + *len_used); 5712 5713 if (*len_left == 0) { 5714 free(ctsio->kern_data_ptr, M_CTL); 5715 ctl_set_success(ctsio); 5716 ctl_done((union ctl_io *)ctsio); 5717 return (CTL_RETVAL_COMPLETE); 5718 } else if (*len_left < sizeof(struct scsi_mode_page_header)) { 5719 5720 free(ctsio->kern_data_ptr, M_CTL); 5721 ctl_set_param_len_error(ctsio); 5722 ctl_done((union ctl_io *)ctsio); 5723 return (CTL_RETVAL_COMPLETE); 5724 5725 } else if ((page_header->page_code & SMPH_SPF) 5726 && (*len_left < sizeof(struct scsi_mode_page_header_sp))) { 5727 5728 free(ctsio->kern_data_ptr, M_CTL); 5729 ctl_set_param_len_error(ctsio); 5730 ctl_done((union ctl_io *)ctsio); 5731 return (CTL_RETVAL_COMPLETE); 5732 } 5733 5734 5735 /* 5736 * XXX KDM should we do something with the block descriptor? 5737 */ 5738 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 5739 5740 if ((control_dev != 0) 5741 && (lun->mode_pages.index[i].page_flags & 5742 CTL_PAGE_FLAG_DISK_ONLY)) 5743 continue; 5744 5745 if ((lun->mode_pages.index[i].page_code & SMPH_PC_MASK) != 5746 (page_header->page_code & SMPH_PC_MASK)) 5747 continue; 5748 5749 /* 5750 * If neither page has a subpage code, then we've got a 5751 * match. 5752 */ 5753 if (((lun->mode_pages.index[i].page_code & SMPH_SPF) == 0) 5754 && ((page_header->page_code & SMPH_SPF) == 0)) { 5755 page_index = &lun->mode_pages.index[i]; 5756 page_len = page_header->page_length; 5757 break; 5758 } 5759 5760 /* 5761 * If both pages have subpages, then the subpage numbers 5762 * have to match. 5763 */ 5764 if ((lun->mode_pages.index[i].page_code & SMPH_SPF) 5765 && (page_header->page_code & SMPH_SPF)) { 5766 struct scsi_mode_page_header_sp *sph; 5767 5768 sph = (struct scsi_mode_page_header_sp *)page_header; 5769 5770 if (lun->mode_pages.index[i].subpage == 5771 sph->subpage) { 5772 page_index = &lun->mode_pages.index[i]; 5773 page_len = scsi_2btoul(sph->page_length); 5774 break; 5775 } 5776 } 5777 } 5778 5779 /* 5780 * If we couldn't find the page, or if we don't have a mode select 5781 * handler for it, send back an error to the user. 5782 */ 5783 if ((page_index == NULL) 5784 || (page_index->select_handler == NULL)) { 5785 ctl_set_invalid_field(ctsio, 5786 /*sks_valid*/ 1, 5787 /*command*/ 0, 5788 /*field*/ *len_used, 5789 /*bit_valid*/ 0, 5790 /*bit*/ 0); 5791 free(ctsio->kern_data_ptr, M_CTL); 5792 ctl_done((union ctl_io *)ctsio); 5793 return (CTL_RETVAL_COMPLETE); 5794 } 5795 5796 if (page_index->page_code & SMPH_SPF) { 5797 page_len_offset = 2; 5798 page_len_size = 2; 5799 } else { 5800 page_len_size = 1; 5801 page_len_offset = 1; 5802 } 5803 5804 /* 5805 * If the length the initiator gives us isn't the one we specify in 5806 * the mode page header, or if they didn't specify enough data in 5807 * the CDB to avoid truncating this page, kick out the request. 5808 */ 5809 if ((page_len != (page_index->page_len - page_len_offset - 5810 page_len_size)) 5811 || (*len_left < page_index->page_len)) { 5812 5813 5814 ctl_set_invalid_field(ctsio, 5815 /*sks_valid*/ 1, 5816 /*command*/ 0, 5817 /*field*/ *len_used + page_len_offset, 5818 /*bit_valid*/ 0, 5819 /*bit*/ 0); 5820 free(ctsio->kern_data_ptr, M_CTL); 5821 ctl_done((union ctl_io *)ctsio); 5822 return (CTL_RETVAL_COMPLETE); 5823 } 5824 5825 /* 5826 * Run through the mode page, checking to make sure that the bits 5827 * the user changed are actually legal for him to change. 5828 */ 5829 for (i = 0; i < page_index->page_len; i++) { 5830 uint8_t *user_byte, *change_mask, *current_byte; 5831 int bad_bit; 5832 int j; 5833 5834 user_byte = (uint8_t *)page_header + i; 5835 change_mask = page_index->page_data + 5836 (page_index->page_len * CTL_PAGE_CHANGEABLE) + i; 5837 current_byte = page_index->page_data + 5838 (page_index->page_len * CTL_PAGE_CURRENT) + i; 5839 5840 /* 5841 * Check to see whether the user set any bits in this byte 5842 * that he is not allowed to set. 5843 */ 5844 if ((*user_byte & ~(*change_mask)) == 5845 (*current_byte & ~(*change_mask))) 5846 continue; 5847 5848 /* 5849 * Go through bit by bit to determine which one is illegal. 5850 */ 5851 bad_bit = 0; 5852 for (j = 7; j >= 0; j--) { 5853 if ((((1 << i) & ~(*change_mask)) & *user_byte) != 5854 (((1 << i) & ~(*change_mask)) & *current_byte)) { 5855 bad_bit = i; 5856 break; 5857 } 5858 } 5859 ctl_set_invalid_field(ctsio, 5860 /*sks_valid*/ 1, 5861 /*command*/ 0, 5862 /*field*/ *len_used + i, 5863 /*bit_valid*/ 1, 5864 /*bit*/ bad_bit); 5865 free(ctsio->kern_data_ptr, M_CTL); 5866 ctl_done((union ctl_io *)ctsio); 5867 return (CTL_RETVAL_COMPLETE); 5868 } 5869 5870 /* 5871 * Decrement these before we call the page handler, since we may 5872 * end up getting called back one way or another before the handler 5873 * returns to this context. 5874 */ 5875 *len_left -= page_index->page_len; 5876 *len_used += page_index->page_len; 5877 5878 retval = page_index->select_handler(ctsio, page_index, 5879 (uint8_t *)page_header); 5880 5881 /* 5882 * If the page handler returns CTL_RETVAL_QUEUED, then we need to 5883 * wait until this queued command completes to finish processing 5884 * the mode page. If it returns anything other than 5885 * CTL_RETVAL_COMPLETE (e.g. CTL_RETVAL_ERROR), then it should have 5886 * already set the sense information, freed the data pointer, and 5887 * completed the io for us. 5888 */ 5889 if (retval != CTL_RETVAL_COMPLETE) 5890 goto bailout_no_done; 5891 5892 /* 5893 * If the initiator sent us more than one page, parse the next one. 5894 */ 5895 if (*len_left > 0) 5896 goto do_next_page; 5897 5898 ctl_set_success(ctsio); 5899 free(ctsio->kern_data_ptr, M_CTL); 5900 ctl_done((union ctl_io *)ctsio); 5901 5902bailout_no_done: 5903 5904 return (CTL_RETVAL_COMPLETE); 5905 5906} 5907 5908int 5909ctl_mode_select(struct ctl_scsiio *ctsio) 5910{ 5911 int param_len, pf, sp; 5912 int header_size, bd_len; 5913 int len_left, len_used; 5914 struct ctl_page_index *page_index; 5915 struct ctl_lun *lun; 5916 int control_dev, page_len; 5917 union ctl_modepage_info *modepage_info; 5918 int retval; 5919 5920 pf = 0; 5921 sp = 0; 5922 page_len = 0; 5923 len_used = 0; 5924 len_left = 0; 5925 retval = 0; 5926 bd_len = 0; 5927 page_index = NULL; 5928 5929 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5930 5931 if (lun->be_lun->lun_type != T_DIRECT) 5932 control_dev = 1; 5933 else 5934 control_dev = 0; 5935 5936 switch (ctsio->cdb[0]) { 5937 case MODE_SELECT_6: { 5938 struct scsi_mode_select_6 *cdb; 5939 5940 cdb = (struct scsi_mode_select_6 *)ctsio->cdb; 5941 5942 pf = (cdb->byte2 & SMS_PF) ? 1 : 0; 5943 sp = (cdb->byte2 & SMS_SP) ? 1 : 0; 5944 5945 param_len = cdb->length; 5946 header_size = sizeof(struct scsi_mode_header_6); 5947 break; 5948 } 5949 case MODE_SELECT_10: { 5950 struct scsi_mode_select_10 *cdb; 5951 5952 cdb = (struct scsi_mode_select_10 *)ctsio->cdb; 5953 5954 pf = (cdb->byte2 & SMS_PF) ? 1 : 0; 5955 sp = (cdb->byte2 & SMS_SP) ? 1 : 0; 5956 5957 param_len = scsi_2btoul(cdb->length); 5958 header_size = sizeof(struct scsi_mode_header_10); 5959 break; 5960 } 5961 default: 5962 ctl_set_invalid_opcode(ctsio); 5963 ctl_done((union ctl_io *)ctsio); 5964 return (CTL_RETVAL_COMPLETE); 5965 break; /* NOTREACHED */ 5966 } 5967 5968 /* 5969 * From SPC-3: 5970 * "A parameter list length of zero indicates that the Data-Out Buffer 5971 * shall be empty. This condition shall not be considered as an error." 5972 */ 5973 if (param_len == 0) { 5974 ctl_set_success(ctsio); 5975 ctl_done((union ctl_io *)ctsio); 5976 return (CTL_RETVAL_COMPLETE); 5977 } 5978 5979 /* 5980 * Since we'll hit this the first time through, prior to 5981 * allocation, we don't need to free a data buffer here. 5982 */ 5983 if (param_len < header_size) { 5984 ctl_set_param_len_error(ctsio); 5985 ctl_done((union ctl_io *)ctsio); 5986 return (CTL_RETVAL_COMPLETE); 5987 } 5988 5989 /* 5990 * Allocate the data buffer and grab the user's data. In theory, 5991 * we shouldn't have to sanity check the parameter list length here 5992 * because the maximum size is 64K. We should be able to malloc 5993 * that much without too many problems. 5994 */ 5995 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 5996 ctsio->kern_data_ptr = malloc(param_len, M_CTL, M_WAITOK); 5997 ctsio->kern_data_len = param_len; 5998 ctsio->kern_total_len = param_len; 5999 ctsio->kern_data_resid = 0; 6000 ctsio->kern_rel_offset = 0; 6001 ctsio->kern_sg_entries = 0; 6002 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6003 ctsio->be_move_done = ctl_config_move_done; 6004 ctl_datamove((union ctl_io *)ctsio); 6005 6006 return (CTL_RETVAL_COMPLETE); 6007 } 6008 6009 switch (ctsio->cdb[0]) { 6010 case MODE_SELECT_6: { 6011 struct scsi_mode_header_6 *mh6; 6012 6013 mh6 = (struct scsi_mode_header_6 *)ctsio->kern_data_ptr; 6014 bd_len = mh6->blk_desc_len; 6015 break; 6016 } 6017 case MODE_SELECT_10: { 6018 struct scsi_mode_header_10 *mh10; 6019 6020 mh10 = (struct scsi_mode_header_10 *)ctsio->kern_data_ptr; 6021 bd_len = scsi_2btoul(mh10->blk_desc_len); 6022 break; 6023 } 6024 default: 6025 panic("Invalid CDB type %#x", ctsio->cdb[0]); 6026 break; 6027 } 6028 6029 if (param_len < (header_size + bd_len)) { 6030 free(ctsio->kern_data_ptr, M_CTL); 6031 ctl_set_param_len_error(ctsio); 6032 ctl_done((union ctl_io *)ctsio); 6033 return (CTL_RETVAL_COMPLETE); 6034 } 6035 6036 /* 6037 * Set the IO_CONT flag, so that if this I/O gets passed to 6038 * ctl_config_write_done(), it'll get passed back to 6039 * ctl_do_mode_select() for further processing, or completion if 6040 * we're all done. 6041 */ 6042 ctsio->io_hdr.flags |= CTL_FLAG_IO_CONT; 6043 ctsio->io_cont = ctl_do_mode_select; 6044 6045 modepage_info = (union ctl_modepage_info *) 6046 ctsio->io_hdr.ctl_private[CTL_PRIV_MODEPAGE].bytes; 6047 6048 memset(modepage_info, 0, sizeof(*modepage_info)); 6049 6050 len_left = param_len - header_size - bd_len; 6051 len_used = header_size + bd_len; 6052 6053 modepage_info->header.len_left = len_left; 6054 modepage_info->header.len_used = len_used; 6055 6056 return (ctl_do_mode_select((union ctl_io *)ctsio)); 6057} 6058 6059int 6060ctl_mode_sense(struct ctl_scsiio *ctsio) 6061{ 6062 struct ctl_lun *lun; 6063 int pc, page_code, dbd, llba, subpage; 6064 int alloc_len, page_len, header_len, total_len; 6065 struct scsi_mode_block_descr *block_desc; 6066 struct ctl_page_index *page_index; 6067 int control_dev; 6068 6069 dbd = 0; 6070 llba = 0; 6071 block_desc = NULL; 6072 page_index = NULL; 6073 6074 CTL_DEBUG_PRINT(("ctl_mode_sense\n")); 6075 6076 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6077 6078 if (lun->be_lun->lun_type != T_DIRECT) 6079 control_dev = 1; 6080 else 6081 control_dev = 0; 6082 6083 switch (ctsio->cdb[0]) { 6084 case MODE_SENSE_6: { 6085 struct scsi_mode_sense_6 *cdb; 6086 6087 cdb = (struct scsi_mode_sense_6 *)ctsio->cdb; 6088 6089 header_len = sizeof(struct scsi_mode_hdr_6); 6090 if (cdb->byte2 & SMS_DBD) 6091 dbd = 1; 6092 else 6093 header_len += sizeof(struct scsi_mode_block_descr); 6094 6095 pc = (cdb->page & SMS_PAGE_CTRL_MASK) >> 6; 6096 page_code = cdb->page & SMS_PAGE_CODE; 6097 subpage = cdb->subpage; 6098 alloc_len = cdb->length; 6099 break; 6100 } 6101 case MODE_SENSE_10: { 6102 struct scsi_mode_sense_10 *cdb; 6103 6104 cdb = (struct scsi_mode_sense_10 *)ctsio->cdb; 6105 6106 header_len = sizeof(struct scsi_mode_hdr_10); 6107 6108 if (cdb->byte2 & SMS_DBD) 6109 dbd = 1; 6110 else 6111 header_len += sizeof(struct scsi_mode_block_descr); 6112 if (cdb->byte2 & SMS10_LLBAA) 6113 llba = 1; 6114 pc = (cdb->page & SMS_PAGE_CTRL_MASK) >> 6; 6115 page_code = cdb->page & SMS_PAGE_CODE; 6116 subpage = cdb->subpage; 6117 alloc_len = scsi_2btoul(cdb->length); 6118 break; 6119 } 6120 default: 6121 ctl_set_invalid_opcode(ctsio); 6122 ctl_done((union ctl_io *)ctsio); 6123 return (CTL_RETVAL_COMPLETE); 6124 break; /* NOTREACHED */ 6125 } 6126 6127 /* 6128 * We have to make a first pass through to calculate the size of 6129 * the pages that match the user's query. Then we allocate enough 6130 * memory to hold it, and actually copy the data into the buffer. 6131 */ 6132 switch (page_code) { 6133 case SMS_ALL_PAGES_PAGE: { 6134 int i; 6135 6136 page_len = 0; 6137 6138 /* 6139 * At the moment, values other than 0 and 0xff here are 6140 * reserved according to SPC-3. 6141 */ 6142 if ((subpage != SMS_SUBPAGE_PAGE_0) 6143 && (subpage != SMS_SUBPAGE_ALL)) { 6144 ctl_set_invalid_field(ctsio, 6145 /*sks_valid*/ 1, 6146 /*command*/ 1, 6147 /*field*/ 3, 6148 /*bit_valid*/ 0, 6149 /*bit*/ 0); 6150 ctl_done((union ctl_io *)ctsio); 6151 return (CTL_RETVAL_COMPLETE); 6152 } 6153 6154 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6155 if ((control_dev != 0) 6156 && (lun->mode_pages.index[i].page_flags & 6157 CTL_PAGE_FLAG_DISK_ONLY)) 6158 continue; 6159 6160 /* 6161 * We don't use this subpage if the user didn't 6162 * request all subpages. 6163 */ 6164 if ((lun->mode_pages.index[i].subpage != 0) 6165 && (subpage == SMS_SUBPAGE_PAGE_0)) 6166 continue; 6167 6168#if 0 6169 printf("found page %#x len %d\n", 6170 lun->mode_pages.index[i].page_code & 6171 SMPH_PC_MASK, 6172 lun->mode_pages.index[i].page_len); 6173#endif 6174 page_len += lun->mode_pages.index[i].page_len; 6175 } 6176 break; 6177 } 6178 default: { 6179 int i; 6180 6181 page_len = 0; 6182 6183 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6184 /* Look for the right page code */ 6185 if ((lun->mode_pages.index[i].page_code & 6186 SMPH_PC_MASK) != page_code) 6187 continue; 6188 6189 /* Look for the right subpage or the subpage wildcard*/ 6190 if ((lun->mode_pages.index[i].subpage != subpage) 6191 && (subpage != SMS_SUBPAGE_ALL)) 6192 continue; 6193 6194 /* Make sure the page is supported for this dev type */ 6195 if ((control_dev != 0) 6196 && (lun->mode_pages.index[i].page_flags & 6197 CTL_PAGE_FLAG_DISK_ONLY)) 6198 continue; 6199 6200#if 0 6201 printf("found page %#x len %d\n", 6202 lun->mode_pages.index[i].page_code & 6203 SMPH_PC_MASK, 6204 lun->mode_pages.index[i].page_len); 6205#endif 6206 6207 page_len += lun->mode_pages.index[i].page_len; 6208 } 6209 6210 if (page_len == 0) { 6211 ctl_set_invalid_field(ctsio, 6212 /*sks_valid*/ 1, 6213 /*command*/ 1, 6214 /*field*/ 2, 6215 /*bit_valid*/ 1, 6216 /*bit*/ 5); 6217 ctl_done((union ctl_io *)ctsio); 6218 return (CTL_RETVAL_COMPLETE); 6219 } 6220 break; 6221 } 6222 } 6223 6224 total_len = header_len + page_len; 6225#if 0 6226 printf("header_len = %d, page_len = %d, total_len = %d\n", 6227 header_len, page_len, total_len); 6228#endif 6229 6230 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 6231 ctsio->kern_sg_entries = 0; 6232 ctsio->kern_data_resid = 0; 6233 ctsio->kern_rel_offset = 0; 6234 if (total_len < alloc_len) { 6235 ctsio->residual = alloc_len - total_len; 6236 ctsio->kern_data_len = total_len; 6237 ctsio->kern_total_len = total_len; 6238 } else { 6239 ctsio->residual = 0; 6240 ctsio->kern_data_len = alloc_len; 6241 ctsio->kern_total_len = alloc_len; 6242 } 6243 6244 switch (ctsio->cdb[0]) { 6245 case MODE_SENSE_6: { 6246 struct scsi_mode_hdr_6 *header; 6247 6248 header = (struct scsi_mode_hdr_6 *)ctsio->kern_data_ptr; 6249 6250 header->datalen = MIN(total_len - 1, 254); 6251 if (control_dev == 0) { 6252 header->dev_specific = 0x10; /* DPOFUA */ 6253 if ((lun->be_lun->flags & CTL_LUN_FLAG_READONLY) || 6254 (lun->mode_pages.control_page[CTL_PAGE_CURRENT] 6255 .eca_and_aen & SCP_SWP) != 0) 6256 header->dev_specific |= 0x80; /* WP */ 6257 } 6258 if (dbd) 6259 header->block_descr_len = 0; 6260 else 6261 header->block_descr_len = 6262 sizeof(struct scsi_mode_block_descr); 6263 block_desc = (struct scsi_mode_block_descr *)&header[1]; 6264 break; 6265 } 6266 case MODE_SENSE_10: { 6267 struct scsi_mode_hdr_10 *header; 6268 int datalen; 6269 6270 header = (struct scsi_mode_hdr_10 *)ctsio->kern_data_ptr; 6271 6272 datalen = MIN(total_len - 2, 65533); 6273 scsi_ulto2b(datalen, header->datalen); 6274 if (control_dev == 0) { 6275 header->dev_specific = 0x10; /* DPOFUA */ 6276 if ((lun->be_lun->flags & CTL_LUN_FLAG_READONLY) || 6277 (lun->mode_pages.control_page[CTL_PAGE_CURRENT] 6278 .eca_and_aen & SCP_SWP) != 0) 6279 header->dev_specific |= 0x80; /* WP */ 6280 } 6281 if (dbd) 6282 scsi_ulto2b(0, header->block_descr_len); 6283 else 6284 scsi_ulto2b(sizeof(struct scsi_mode_block_descr), 6285 header->block_descr_len); 6286 block_desc = (struct scsi_mode_block_descr *)&header[1]; 6287 break; 6288 } 6289 default: 6290 panic("invalid CDB type %#x", ctsio->cdb[0]); 6291 break; /* NOTREACHED */ 6292 } 6293 6294 /* 6295 * If we've got a disk, use its blocksize in the block 6296 * descriptor. Otherwise, just set it to 0. 6297 */ 6298 if (dbd == 0) { 6299 if (control_dev == 0) 6300 scsi_ulto3b(lun->be_lun->blocksize, 6301 block_desc->block_len); 6302 else 6303 scsi_ulto3b(0, block_desc->block_len); 6304 } 6305 6306 switch (page_code) { 6307 case SMS_ALL_PAGES_PAGE: { 6308 int i, data_used; 6309 6310 data_used = header_len; 6311 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6312 struct ctl_page_index *page_index; 6313 6314 page_index = &lun->mode_pages.index[i]; 6315 6316 if ((control_dev != 0) 6317 && (page_index->page_flags & 6318 CTL_PAGE_FLAG_DISK_ONLY)) 6319 continue; 6320 6321 /* 6322 * We don't use this subpage if the user didn't 6323 * request all subpages. We already checked (above) 6324 * to make sure the user only specified a subpage 6325 * of 0 or 0xff in the SMS_ALL_PAGES_PAGE case. 6326 */ 6327 if ((page_index->subpage != 0) 6328 && (subpage == SMS_SUBPAGE_PAGE_0)) 6329 continue; 6330 6331 /* 6332 * Call the handler, if it exists, to update the 6333 * page to the latest values. 6334 */ 6335 if (page_index->sense_handler != NULL) 6336 page_index->sense_handler(ctsio, page_index,pc); 6337 6338 memcpy(ctsio->kern_data_ptr + data_used, 6339 page_index->page_data + 6340 (page_index->page_len * pc), 6341 page_index->page_len); 6342 data_used += page_index->page_len; 6343 } 6344 break; 6345 } 6346 default: { 6347 int i, data_used; 6348 6349 data_used = header_len; 6350 6351 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6352 struct ctl_page_index *page_index; 6353 6354 page_index = &lun->mode_pages.index[i]; 6355 6356 /* Look for the right page code */ 6357 if ((page_index->page_code & SMPH_PC_MASK) != page_code) 6358 continue; 6359 6360 /* Look for the right subpage or the subpage wildcard*/ 6361 if ((page_index->subpage != subpage) 6362 && (subpage != SMS_SUBPAGE_ALL)) 6363 continue; 6364 6365 /* Make sure the page is supported for this dev type */ 6366 if ((control_dev != 0) 6367 && (page_index->page_flags & 6368 CTL_PAGE_FLAG_DISK_ONLY)) 6369 continue; 6370 6371 /* 6372 * Call the handler, if it exists, to update the 6373 * page to the latest values. 6374 */ 6375 if (page_index->sense_handler != NULL) 6376 page_index->sense_handler(ctsio, page_index,pc); 6377 6378 memcpy(ctsio->kern_data_ptr + data_used, 6379 page_index->page_data + 6380 (page_index->page_len * pc), 6381 page_index->page_len); 6382 data_used += page_index->page_len; 6383 } 6384 break; 6385 } 6386 } 6387 6388 ctl_set_success(ctsio); 6389 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6390 ctsio->be_move_done = ctl_config_move_done; 6391 ctl_datamove((union ctl_io *)ctsio); 6392 return (CTL_RETVAL_COMPLETE); 6393} 6394 6395int 6396ctl_lbp_log_sense_handler(struct ctl_scsiio *ctsio, 6397 struct ctl_page_index *page_index, 6398 int pc) 6399{ 6400 struct ctl_lun *lun; 6401 struct scsi_log_param_header *phdr; 6402 uint8_t *data; 6403 uint64_t val; 6404 6405 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6406 data = page_index->page_data; 6407 6408 if (lun->backend->lun_attr != NULL && 6409 (val = lun->backend->lun_attr(lun->be_lun->be_lun, "blocksavail")) 6410 != UINT64_MAX) { 6411 phdr = (struct scsi_log_param_header *)data; 6412 scsi_ulto2b(0x0001, phdr->param_code); 6413 phdr->param_control = SLP_LBIN | SLP_LP; 6414 phdr->param_len = 8; 6415 data = (uint8_t *)(phdr + 1); 6416 scsi_ulto4b(val >> CTL_LBP_EXPONENT, data); 6417 data[4] = 0x02; /* per-pool */ 6418 data += phdr->param_len; 6419 } 6420 6421 if (lun->backend->lun_attr != NULL && 6422 (val = lun->backend->lun_attr(lun->be_lun->be_lun, "blocksused")) 6423 != UINT64_MAX) { 6424 phdr = (struct scsi_log_param_header *)data; 6425 scsi_ulto2b(0x0002, phdr->param_code); 6426 phdr->param_control = SLP_LBIN | SLP_LP; 6427 phdr->param_len = 8; 6428 data = (uint8_t *)(phdr + 1); 6429 scsi_ulto4b(val >> CTL_LBP_EXPONENT, data); 6430 data[4] = 0x01; /* per-LUN */ 6431 data += phdr->param_len; 6432 } 6433 6434 if (lun->backend->lun_attr != NULL && 6435 (val = lun->backend->lun_attr(lun->be_lun->be_lun, "poolblocksavail")) 6436 != UINT64_MAX) { 6437 phdr = (struct scsi_log_param_header *)data; 6438 scsi_ulto2b(0x00f1, phdr->param_code); 6439 phdr->param_control = SLP_LBIN | SLP_LP; 6440 phdr->param_len = 8; 6441 data = (uint8_t *)(phdr + 1); 6442 scsi_ulto4b(val >> CTL_LBP_EXPONENT, data); 6443 data[4] = 0x02; /* per-pool */ 6444 data += phdr->param_len; 6445 } 6446 6447 if (lun->backend->lun_attr != NULL && 6448 (val = lun->backend->lun_attr(lun->be_lun->be_lun, "poolblocksused")) 6449 != UINT64_MAX) { 6450 phdr = (struct scsi_log_param_header *)data; 6451 scsi_ulto2b(0x00f2, phdr->param_code); 6452 phdr->param_control = SLP_LBIN | SLP_LP; 6453 phdr->param_len = 8; 6454 data = (uint8_t *)(phdr + 1); 6455 scsi_ulto4b(val >> CTL_LBP_EXPONENT, data); 6456 data[4] = 0x02; /* per-pool */ 6457 data += phdr->param_len; 6458 } 6459 6460 page_index->page_len = data - page_index->page_data; 6461 return (0); 6462} 6463 6464int 6465ctl_sap_log_sense_handler(struct ctl_scsiio *ctsio, 6466 struct ctl_page_index *page_index, 6467 int pc) 6468{ 6469 struct ctl_lun *lun; 6470 struct stat_page *data; 6471 uint64_t rn, wn, rb, wb; 6472 struct bintime rt, wt; 6473 int i; 6474 6475 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6476 data = (struct stat_page *)page_index->page_data; 6477 6478 scsi_ulto2b(SLP_SAP, data->sap.hdr.param_code); 6479 data->sap.hdr.param_control = SLP_LBIN; 6480 data->sap.hdr.param_len = sizeof(struct scsi_log_stat_and_perf) - 6481 sizeof(struct scsi_log_param_header); 6482 rn = wn = rb = wb = 0; 6483 bintime_clear(&rt); 6484 bintime_clear(&wt); 6485 for (i = 0; i < CTL_MAX_PORTS; i++) { 6486 rn += lun->stats.ports[i].operations[CTL_STATS_READ]; 6487 wn += lun->stats.ports[i].operations[CTL_STATS_WRITE]; 6488 rb += lun->stats.ports[i].bytes[CTL_STATS_READ]; 6489 wb += lun->stats.ports[i].bytes[CTL_STATS_WRITE]; 6490 bintime_add(&rt, &lun->stats.ports[i].time[CTL_STATS_READ]); 6491 bintime_add(&wt, &lun->stats.ports[i].time[CTL_STATS_WRITE]); 6492 } 6493 scsi_u64to8b(rn, data->sap.read_num); 6494 scsi_u64to8b(wn, data->sap.write_num); 6495 if (lun->stats.blocksize > 0) { 6496 scsi_u64to8b(wb / lun->stats.blocksize, 6497 data->sap.recvieved_lba); 6498 scsi_u64to8b(rb / lun->stats.blocksize, 6499 data->sap.transmitted_lba); 6500 } 6501 scsi_u64to8b((uint64_t)rt.sec * 1000 + rt.frac / (UINT64_MAX / 1000), 6502 data->sap.read_int); 6503 scsi_u64to8b((uint64_t)wt.sec * 1000 + wt.frac / (UINT64_MAX / 1000), 6504 data->sap.write_int); 6505 scsi_u64to8b(0, data->sap.weighted_num); 6506 scsi_u64to8b(0, data->sap.weighted_int); 6507 scsi_ulto2b(SLP_IT, data->it.hdr.param_code); 6508 data->it.hdr.param_control = SLP_LBIN; 6509 data->it.hdr.param_len = sizeof(struct scsi_log_idle_time) - 6510 sizeof(struct scsi_log_param_header); 6511#ifdef CTL_TIME_IO 6512 scsi_u64to8b(lun->idle_time / SBT_1MS, data->it.idle_int); 6513#endif 6514 scsi_ulto2b(SLP_TI, data->ti.hdr.param_code); 6515 data->it.hdr.param_control = SLP_LBIN; 6516 data->ti.hdr.param_len = sizeof(struct scsi_log_time_interval) - 6517 sizeof(struct scsi_log_param_header); 6518 scsi_ulto4b(3, data->ti.exponent); 6519 scsi_ulto4b(1, data->ti.integer); 6520 6521 page_index->page_len = sizeof(*data); 6522 return (0); 6523} 6524 6525int 6526ctl_log_sense(struct ctl_scsiio *ctsio) 6527{ 6528 struct ctl_lun *lun; 6529 int i, pc, page_code, subpage; 6530 int alloc_len, total_len; 6531 struct ctl_page_index *page_index; 6532 struct scsi_log_sense *cdb; 6533 struct scsi_log_header *header; 6534 6535 CTL_DEBUG_PRINT(("ctl_log_sense\n")); 6536 6537 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6538 cdb = (struct scsi_log_sense *)ctsio->cdb; 6539 pc = (cdb->page & SLS_PAGE_CTRL_MASK) >> 6; 6540 page_code = cdb->page & SLS_PAGE_CODE; 6541 subpage = cdb->subpage; 6542 alloc_len = scsi_2btoul(cdb->length); 6543 6544 page_index = NULL; 6545 for (i = 0; i < CTL_NUM_LOG_PAGES; i++) { 6546 page_index = &lun->log_pages.index[i]; 6547 6548 /* Look for the right page code */ 6549 if ((page_index->page_code & SL_PAGE_CODE) != page_code) 6550 continue; 6551 6552 /* Look for the right subpage or the subpage wildcard*/ 6553 if (page_index->subpage != subpage) 6554 continue; 6555 6556 break; 6557 } 6558 if (i >= CTL_NUM_LOG_PAGES) { 6559 ctl_set_invalid_field(ctsio, 6560 /*sks_valid*/ 1, 6561 /*command*/ 1, 6562 /*field*/ 2, 6563 /*bit_valid*/ 0, 6564 /*bit*/ 0); 6565 ctl_done((union ctl_io *)ctsio); 6566 return (CTL_RETVAL_COMPLETE); 6567 } 6568 6569 total_len = sizeof(struct scsi_log_header) + page_index->page_len; 6570 6571 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 6572 ctsio->kern_sg_entries = 0; 6573 ctsio->kern_data_resid = 0; 6574 ctsio->kern_rel_offset = 0; 6575 if (total_len < alloc_len) { 6576 ctsio->residual = alloc_len - total_len; 6577 ctsio->kern_data_len = total_len; 6578 ctsio->kern_total_len = total_len; 6579 } else { 6580 ctsio->residual = 0; 6581 ctsio->kern_data_len = alloc_len; 6582 ctsio->kern_total_len = alloc_len; 6583 } 6584 6585 header = (struct scsi_log_header *)ctsio->kern_data_ptr; 6586 header->page = page_index->page_code; 6587 if (page_index->subpage) { 6588 header->page |= SL_SPF; 6589 header->subpage = page_index->subpage; 6590 } 6591 scsi_ulto2b(page_index->page_len, header->datalen); 6592 6593 /* 6594 * Call the handler, if it exists, to update the 6595 * page to the latest values. 6596 */ 6597 if (page_index->sense_handler != NULL) 6598 page_index->sense_handler(ctsio, page_index, pc); 6599 6600 memcpy(header + 1, page_index->page_data, page_index->page_len); 6601 6602 ctl_set_success(ctsio); 6603 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6604 ctsio->be_move_done = ctl_config_move_done; 6605 ctl_datamove((union ctl_io *)ctsio); 6606 return (CTL_RETVAL_COMPLETE); 6607} 6608 6609int 6610ctl_read_capacity(struct ctl_scsiio *ctsio) 6611{ 6612 struct scsi_read_capacity *cdb; 6613 struct scsi_read_capacity_data *data; 6614 struct ctl_lun *lun; 6615 uint32_t lba; 6616 6617 CTL_DEBUG_PRINT(("ctl_read_capacity\n")); 6618 6619 cdb = (struct scsi_read_capacity *)ctsio->cdb; 6620 6621 lba = scsi_4btoul(cdb->addr); 6622 if (((cdb->pmi & SRC_PMI) == 0) 6623 && (lba != 0)) { 6624 ctl_set_invalid_field(/*ctsio*/ ctsio, 6625 /*sks_valid*/ 1, 6626 /*command*/ 1, 6627 /*field*/ 2, 6628 /*bit_valid*/ 0, 6629 /*bit*/ 0); 6630 ctl_done((union ctl_io *)ctsio); 6631 return (CTL_RETVAL_COMPLETE); 6632 } 6633 6634 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6635 6636 ctsio->kern_data_ptr = malloc(sizeof(*data), M_CTL, M_WAITOK | M_ZERO); 6637 data = (struct scsi_read_capacity_data *)ctsio->kern_data_ptr; 6638 ctsio->residual = 0; 6639 ctsio->kern_data_len = sizeof(*data); 6640 ctsio->kern_total_len = sizeof(*data); 6641 ctsio->kern_data_resid = 0; 6642 ctsio->kern_rel_offset = 0; 6643 ctsio->kern_sg_entries = 0; 6644 6645 /* 6646 * If the maximum LBA is greater than 0xfffffffe, the user must 6647 * issue a SERVICE ACTION IN (16) command, with the read capacity 6648 * serivce action set. 6649 */ 6650 if (lun->be_lun->maxlba > 0xfffffffe) 6651 scsi_ulto4b(0xffffffff, data->addr); 6652 else 6653 scsi_ulto4b(lun->be_lun->maxlba, data->addr); 6654 6655 /* 6656 * XXX KDM this may not be 512 bytes... 6657 */ 6658 scsi_ulto4b(lun->be_lun->blocksize, data->length); 6659 6660 ctl_set_success(ctsio); 6661 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6662 ctsio->be_move_done = ctl_config_move_done; 6663 ctl_datamove((union ctl_io *)ctsio); 6664 return (CTL_RETVAL_COMPLETE); 6665} 6666 6667int 6668ctl_read_capacity_16(struct ctl_scsiio *ctsio) 6669{ 6670 struct scsi_read_capacity_16 *cdb; 6671 struct scsi_read_capacity_data_long *data; 6672 struct ctl_lun *lun; 6673 uint64_t lba; 6674 uint32_t alloc_len; 6675 6676 CTL_DEBUG_PRINT(("ctl_read_capacity_16\n")); 6677 6678 cdb = (struct scsi_read_capacity_16 *)ctsio->cdb; 6679 6680 alloc_len = scsi_4btoul(cdb->alloc_len); 6681 lba = scsi_8btou64(cdb->addr); 6682 6683 if ((cdb->reladr & SRC16_PMI) 6684 && (lba != 0)) { 6685 ctl_set_invalid_field(/*ctsio*/ ctsio, 6686 /*sks_valid*/ 1, 6687 /*command*/ 1, 6688 /*field*/ 2, 6689 /*bit_valid*/ 0, 6690 /*bit*/ 0); 6691 ctl_done((union ctl_io *)ctsio); 6692 return (CTL_RETVAL_COMPLETE); 6693 } 6694 6695 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6696 6697 ctsio->kern_data_ptr = malloc(sizeof(*data), M_CTL, M_WAITOK | M_ZERO); 6698 data = (struct scsi_read_capacity_data_long *)ctsio->kern_data_ptr; 6699 6700 if (sizeof(*data) < alloc_len) { 6701 ctsio->residual = alloc_len - sizeof(*data); 6702 ctsio->kern_data_len = sizeof(*data); 6703 ctsio->kern_total_len = sizeof(*data); 6704 } else { 6705 ctsio->residual = 0; 6706 ctsio->kern_data_len = alloc_len; 6707 ctsio->kern_total_len = alloc_len; 6708 } 6709 ctsio->kern_data_resid = 0; 6710 ctsio->kern_rel_offset = 0; 6711 ctsio->kern_sg_entries = 0; 6712 6713 scsi_u64to8b(lun->be_lun->maxlba, data->addr); 6714 /* XXX KDM this may not be 512 bytes... */ 6715 scsi_ulto4b(lun->be_lun->blocksize, data->length); 6716 data->prot_lbppbe = lun->be_lun->pblockexp & SRC16_LBPPBE; 6717 scsi_ulto2b(lun->be_lun->pblockoff & SRC16_LALBA_A, data->lalba_lbp); 6718 if (lun->be_lun->flags & CTL_LUN_FLAG_UNMAP) 6719 data->lalba_lbp[0] |= SRC16_LBPME | SRC16_LBPRZ; 6720 6721 ctl_set_success(ctsio); 6722 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6723 ctsio->be_move_done = ctl_config_move_done; 6724 ctl_datamove((union ctl_io *)ctsio); 6725 return (CTL_RETVAL_COMPLETE); 6726} 6727 6728int 6729ctl_get_lba_status(struct ctl_scsiio *ctsio) 6730{ 6731 struct scsi_get_lba_status *cdb; 6732 struct scsi_get_lba_status_data *data; 6733 struct ctl_lun *lun; 6734 struct ctl_lba_len_flags *lbalen; 6735 uint64_t lba; 6736 uint32_t alloc_len, total_len; 6737 int retval; 6738 6739 CTL_DEBUG_PRINT(("ctl_get_lba_status\n")); 6740 6741 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6742 cdb = (struct scsi_get_lba_status *)ctsio->cdb; 6743 lba = scsi_8btou64(cdb->addr); 6744 alloc_len = scsi_4btoul(cdb->alloc_len); 6745 6746 if (lba > lun->be_lun->maxlba) { 6747 ctl_set_lba_out_of_range(ctsio); 6748 ctl_done((union ctl_io *)ctsio); 6749 return (CTL_RETVAL_COMPLETE); 6750 } 6751 6752 total_len = sizeof(*data) + sizeof(data->descr[0]); 6753 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 6754 data = (struct scsi_get_lba_status_data *)ctsio->kern_data_ptr; 6755 6756 if (total_len < alloc_len) { 6757 ctsio->residual = alloc_len - total_len; 6758 ctsio->kern_data_len = total_len; 6759 ctsio->kern_total_len = total_len; 6760 } else { 6761 ctsio->residual = 0; 6762 ctsio->kern_data_len = alloc_len; 6763 ctsio->kern_total_len = alloc_len; 6764 } 6765 ctsio->kern_data_resid = 0; 6766 ctsio->kern_rel_offset = 0; 6767 ctsio->kern_sg_entries = 0; 6768 6769 /* Fill dummy data in case backend can't tell anything. */ 6770 scsi_ulto4b(4 + sizeof(data->descr[0]), data->length); 6771 scsi_u64to8b(lba, data->descr[0].addr); 6772 scsi_ulto4b(MIN(UINT32_MAX, lun->be_lun->maxlba + 1 - lba), 6773 data->descr[0].length); 6774 data->descr[0].status = 0; /* Mapped or unknown. */ 6775 6776 ctl_set_success(ctsio); 6777 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6778 ctsio->be_move_done = ctl_config_move_done; 6779 6780 lbalen = (struct ctl_lba_len_flags *)&ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 6781 lbalen->lba = lba; 6782 lbalen->len = total_len; 6783 lbalen->flags = 0; 6784 retval = lun->backend->config_read((union ctl_io *)ctsio); 6785 return (CTL_RETVAL_COMPLETE); 6786} 6787 6788int 6789ctl_read_defect(struct ctl_scsiio *ctsio) 6790{ 6791 struct scsi_read_defect_data_10 *ccb10; 6792 struct scsi_read_defect_data_12 *ccb12; 6793 struct scsi_read_defect_data_hdr_10 *data10; 6794 struct scsi_read_defect_data_hdr_12 *data12; 6795 uint32_t alloc_len, data_len; 6796 uint8_t format; 6797 6798 CTL_DEBUG_PRINT(("ctl_read_defect\n")); 6799 6800 if (ctsio->cdb[0] == READ_DEFECT_DATA_10) { 6801 ccb10 = (struct scsi_read_defect_data_10 *)&ctsio->cdb; 6802 format = ccb10->format; 6803 alloc_len = scsi_2btoul(ccb10->alloc_length); 6804 data_len = sizeof(*data10); 6805 } else { 6806 ccb12 = (struct scsi_read_defect_data_12 *)&ctsio->cdb; 6807 format = ccb12->format; 6808 alloc_len = scsi_4btoul(ccb12->alloc_length); 6809 data_len = sizeof(*data12); 6810 } 6811 if (alloc_len == 0) { 6812 ctl_set_success(ctsio); 6813 ctl_done((union ctl_io *)ctsio); 6814 return (CTL_RETVAL_COMPLETE); 6815 } 6816 6817 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 6818 if (data_len < alloc_len) { 6819 ctsio->residual = alloc_len - data_len; 6820 ctsio->kern_data_len = data_len; 6821 ctsio->kern_total_len = data_len; 6822 } else { 6823 ctsio->residual = 0; 6824 ctsio->kern_data_len = alloc_len; 6825 ctsio->kern_total_len = alloc_len; 6826 } 6827 ctsio->kern_data_resid = 0; 6828 ctsio->kern_rel_offset = 0; 6829 ctsio->kern_sg_entries = 0; 6830 6831 if (ctsio->cdb[0] == READ_DEFECT_DATA_10) { 6832 data10 = (struct scsi_read_defect_data_hdr_10 *) 6833 ctsio->kern_data_ptr; 6834 data10->format = format; 6835 scsi_ulto2b(0, data10->length); 6836 } else { 6837 data12 = (struct scsi_read_defect_data_hdr_12 *) 6838 ctsio->kern_data_ptr; 6839 data12->format = format; 6840 scsi_ulto2b(0, data12->generation); 6841 scsi_ulto4b(0, data12->length); 6842 } 6843 6844 ctl_set_success(ctsio); 6845 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6846 ctsio->be_move_done = ctl_config_move_done; 6847 ctl_datamove((union ctl_io *)ctsio); 6848 return (CTL_RETVAL_COMPLETE); 6849} 6850 6851int 6852ctl_report_tagret_port_groups(struct ctl_scsiio *ctsio) 6853{ 6854 struct scsi_maintenance_in *cdb; 6855 int retval; 6856 int alloc_len, ext, total_len = 0, g, p, pc, pg, gs, os; 6857 int num_target_port_groups, num_target_ports; 6858 struct ctl_lun *lun; 6859 struct ctl_softc *softc; 6860 struct ctl_port *port; 6861 struct scsi_target_group_data *rtg_ptr; 6862 struct scsi_target_group_data_extended *rtg_ext_ptr; 6863 struct scsi_target_port_group_descriptor *tpg_desc; 6864 6865 CTL_DEBUG_PRINT(("ctl_report_tagret_port_groups\n")); 6866 6867 cdb = (struct scsi_maintenance_in *)ctsio->cdb; 6868 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6869 softc = lun->ctl_softc; 6870 6871 retval = CTL_RETVAL_COMPLETE; 6872 6873 switch (cdb->byte2 & STG_PDF_MASK) { 6874 case STG_PDF_LENGTH: 6875 ext = 0; 6876 break; 6877 case STG_PDF_EXTENDED: 6878 ext = 1; 6879 break; 6880 default: 6881 ctl_set_invalid_field(/*ctsio*/ ctsio, 6882 /*sks_valid*/ 1, 6883 /*command*/ 1, 6884 /*field*/ 2, 6885 /*bit_valid*/ 1, 6886 /*bit*/ 5); 6887 ctl_done((union ctl_io *)ctsio); 6888 return(retval); 6889 } 6890 6891 if (softc->is_single) 6892 num_target_port_groups = 1; 6893 else 6894 num_target_port_groups = NUM_TARGET_PORT_GROUPS; 6895 num_target_ports = 0; 6896 mtx_lock(&softc->ctl_lock); 6897 STAILQ_FOREACH(port, &softc->port_list, links) { 6898 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 6899 continue; 6900 if (ctl_lun_map_to_port(port, lun->lun) >= CTL_MAX_LUNS) 6901 continue; 6902 num_target_ports++; 6903 } 6904 mtx_unlock(&softc->ctl_lock); 6905 6906 if (ext) 6907 total_len = sizeof(struct scsi_target_group_data_extended); 6908 else 6909 total_len = sizeof(struct scsi_target_group_data); 6910 total_len += sizeof(struct scsi_target_port_group_descriptor) * 6911 num_target_port_groups + 6912 sizeof(struct scsi_target_port_descriptor) * 6913 num_target_ports * num_target_port_groups; 6914 6915 alloc_len = scsi_4btoul(cdb->length); 6916 6917 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 6918 6919 ctsio->kern_sg_entries = 0; 6920 6921 if (total_len < alloc_len) { 6922 ctsio->residual = alloc_len - total_len; 6923 ctsio->kern_data_len = total_len; 6924 ctsio->kern_total_len = total_len; 6925 } else { 6926 ctsio->residual = 0; 6927 ctsio->kern_data_len = alloc_len; 6928 ctsio->kern_total_len = alloc_len; 6929 } 6930 ctsio->kern_data_resid = 0; 6931 ctsio->kern_rel_offset = 0; 6932 6933 if (ext) { 6934 rtg_ext_ptr = (struct scsi_target_group_data_extended *) 6935 ctsio->kern_data_ptr; 6936 scsi_ulto4b(total_len - 4, rtg_ext_ptr->length); 6937 rtg_ext_ptr->format_type = 0x10; 6938 rtg_ext_ptr->implicit_transition_time = 0; 6939 tpg_desc = &rtg_ext_ptr->groups[0]; 6940 } else { 6941 rtg_ptr = (struct scsi_target_group_data *) 6942 ctsio->kern_data_ptr; 6943 scsi_ulto4b(total_len - 4, rtg_ptr->length); 6944 tpg_desc = &rtg_ptr->groups[0]; 6945 } 6946 6947 mtx_lock(&softc->ctl_lock); 6948 pg = softc->port_offset / CTL_MAX_PORTS; 6949 if (softc->flags & CTL_FLAG_ACTIVE_SHELF) { 6950 if (softc->ha_mode == CTL_HA_MODE_ACT_STBY) { 6951 gs = TPG_ASYMMETRIC_ACCESS_OPTIMIZED; 6952 os = TPG_ASYMMETRIC_ACCESS_STANDBY; 6953 } else if (lun->flags & CTL_LUN_PRIMARY_SC) { 6954 gs = TPG_ASYMMETRIC_ACCESS_OPTIMIZED; 6955 os = TPG_ASYMMETRIC_ACCESS_NONOPTIMIZED; 6956 } else { 6957 gs = TPG_ASYMMETRIC_ACCESS_NONOPTIMIZED; 6958 os = TPG_ASYMMETRIC_ACCESS_OPTIMIZED; 6959 } 6960 } else { 6961 gs = TPG_ASYMMETRIC_ACCESS_STANDBY; 6962 os = TPG_ASYMMETRIC_ACCESS_OPTIMIZED; 6963 } 6964 for (g = 0; g < num_target_port_groups; g++) { 6965 tpg_desc->pref_state = (g == pg) ? gs : os; 6966 tpg_desc->support = TPG_AO_SUP | TPG_AN_SUP | TPG_S_SUP; 6967 scsi_ulto2b(g + 1, tpg_desc->target_port_group); 6968 tpg_desc->status = TPG_IMPLICIT; 6969 pc = 0; 6970 STAILQ_FOREACH(port, &softc->port_list, links) { 6971 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 6972 continue; 6973 if (ctl_lun_map_to_port(port, lun->lun) >= CTL_MAX_LUNS) 6974 continue; 6975 p = port->targ_port % CTL_MAX_PORTS + g * CTL_MAX_PORTS; 6976 scsi_ulto2b(p, tpg_desc->descriptors[pc]. 6977 relative_target_port_identifier); 6978 pc++; 6979 } 6980 tpg_desc->target_port_count = pc; 6981 tpg_desc = (struct scsi_target_port_group_descriptor *) 6982 &tpg_desc->descriptors[pc]; 6983 } 6984 mtx_unlock(&softc->ctl_lock); 6985 6986 ctl_set_success(ctsio); 6987 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6988 ctsio->be_move_done = ctl_config_move_done; 6989 ctl_datamove((union ctl_io *)ctsio); 6990 return(retval); 6991} 6992 6993int 6994ctl_report_supported_opcodes(struct ctl_scsiio *ctsio) 6995{ 6996 struct ctl_lun *lun; 6997 struct scsi_report_supported_opcodes *cdb; 6998 const struct ctl_cmd_entry *entry, *sentry; 6999 struct scsi_report_supported_opcodes_all *all; 7000 struct scsi_report_supported_opcodes_descr *descr; 7001 struct scsi_report_supported_opcodes_one *one; 7002 int retval; 7003 int alloc_len, total_len; 7004 int opcode, service_action, i, j, num; 7005 7006 CTL_DEBUG_PRINT(("ctl_report_supported_opcodes\n")); 7007 7008 cdb = (struct scsi_report_supported_opcodes *)ctsio->cdb; 7009 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7010 7011 retval = CTL_RETVAL_COMPLETE; 7012 7013 opcode = cdb->requested_opcode; 7014 service_action = scsi_2btoul(cdb->requested_service_action); 7015 switch (cdb->options & RSO_OPTIONS_MASK) { 7016 case RSO_OPTIONS_ALL: 7017 num = 0; 7018 for (i = 0; i < 256; i++) { 7019 entry = &ctl_cmd_table[i]; 7020 if (entry->flags & CTL_CMD_FLAG_SA5) { 7021 for (j = 0; j < 32; j++) { 7022 sentry = &((const struct ctl_cmd_entry *) 7023 entry->execute)[j]; 7024 if (ctl_cmd_applicable( 7025 lun->be_lun->lun_type, sentry)) 7026 num++; 7027 } 7028 } else { 7029 if (ctl_cmd_applicable(lun->be_lun->lun_type, 7030 entry)) 7031 num++; 7032 } 7033 } 7034 total_len = sizeof(struct scsi_report_supported_opcodes_all) + 7035 num * sizeof(struct scsi_report_supported_opcodes_descr); 7036 break; 7037 case RSO_OPTIONS_OC: 7038 if (ctl_cmd_table[opcode].flags & CTL_CMD_FLAG_SA5) { 7039 ctl_set_invalid_field(/*ctsio*/ ctsio, 7040 /*sks_valid*/ 1, 7041 /*command*/ 1, 7042 /*field*/ 2, 7043 /*bit_valid*/ 1, 7044 /*bit*/ 2); 7045 ctl_done((union ctl_io *)ctsio); 7046 return (CTL_RETVAL_COMPLETE); 7047 } 7048 total_len = sizeof(struct scsi_report_supported_opcodes_one) + 32; 7049 break; 7050 case RSO_OPTIONS_OC_SA: 7051 if ((ctl_cmd_table[opcode].flags & CTL_CMD_FLAG_SA5) == 0 || 7052 service_action >= 32) { 7053 ctl_set_invalid_field(/*ctsio*/ ctsio, 7054 /*sks_valid*/ 1, 7055 /*command*/ 1, 7056 /*field*/ 2, 7057 /*bit_valid*/ 1, 7058 /*bit*/ 2); 7059 ctl_done((union ctl_io *)ctsio); 7060 return (CTL_RETVAL_COMPLETE); 7061 } 7062 total_len = sizeof(struct scsi_report_supported_opcodes_one) + 32; 7063 break; 7064 default: 7065 ctl_set_invalid_field(/*ctsio*/ ctsio, 7066 /*sks_valid*/ 1, 7067 /*command*/ 1, 7068 /*field*/ 2, 7069 /*bit_valid*/ 1, 7070 /*bit*/ 2); 7071 ctl_done((union ctl_io *)ctsio); 7072 return (CTL_RETVAL_COMPLETE); 7073 } 7074 7075 alloc_len = scsi_4btoul(cdb->length); 7076 7077 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7078 7079 ctsio->kern_sg_entries = 0; 7080 7081 if (total_len < alloc_len) { 7082 ctsio->residual = alloc_len - total_len; 7083 ctsio->kern_data_len = total_len; 7084 ctsio->kern_total_len = total_len; 7085 } else { 7086 ctsio->residual = 0; 7087 ctsio->kern_data_len = alloc_len; 7088 ctsio->kern_total_len = alloc_len; 7089 } 7090 ctsio->kern_data_resid = 0; 7091 ctsio->kern_rel_offset = 0; 7092 7093 switch (cdb->options & RSO_OPTIONS_MASK) { 7094 case RSO_OPTIONS_ALL: 7095 all = (struct scsi_report_supported_opcodes_all *) 7096 ctsio->kern_data_ptr; 7097 num = 0; 7098 for (i = 0; i < 256; i++) { 7099 entry = &ctl_cmd_table[i]; 7100 if (entry->flags & CTL_CMD_FLAG_SA5) { 7101 for (j = 0; j < 32; j++) { 7102 sentry = &((const struct ctl_cmd_entry *) 7103 entry->execute)[j]; 7104 if (!ctl_cmd_applicable( 7105 lun->be_lun->lun_type, sentry)) 7106 continue; 7107 descr = &all->descr[num++]; 7108 descr->opcode = i; 7109 scsi_ulto2b(j, descr->service_action); 7110 descr->flags = RSO_SERVACTV; 7111 scsi_ulto2b(sentry->length, 7112 descr->cdb_length); 7113 } 7114 } else { 7115 if (!ctl_cmd_applicable(lun->be_lun->lun_type, 7116 entry)) 7117 continue; 7118 descr = &all->descr[num++]; 7119 descr->opcode = i; 7120 scsi_ulto2b(0, descr->service_action); 7121 descr->flags = 0; 7122 scsi_ulto2b(entry->length, descr->cdb_length); 7123 } 7124 } 7125 scsi_ulto4b( 7126 num * sizeof(struct scsi_report_supported_opcodes_descr), 7127 all->length); 7128 break; 7129 case RSO_OPTIONS_OC: 7130 one = (struct scsi_report_supported_opcodes_one *) 7131 ctsio->kern_data_ptr; 7132 entry = &ctl_cmd_table[opcode]; 7133 goto fill_one; 7134 case RSO_OPTIONS_OC_SA: 7135 one = (struct scsi_report_supported_opcodes_one *) 7136 ctsio->kern_data_ptr; 7137 entry = &ctl_cmd_table[opcode]; 7138 entry = &((const struct ctl_cmd_entry *) 7139 entry->execute)[service_action]; 7140fill_one: 7141 if (ctl_cmd_applicable(lun->be_lun->lun_type, entry)) { 7142 one->support = 3; 7143 scsi_ulto2b(entry->length, one->cdb_length); 7144 one->cdb_usage[0] = opcode; 7145 memcpy(&one->cdb_usage[1], entry->usage, 7146 entry->length - 1); 7147 } else 7148 one->support = 1; 7149 break; 7150 } 7151 7152 ctl_set_success(ctsio); 7153 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7154 ctsio->be_move_done = ctl_config_move_done; 7155 ctl_datamove((union ctl_io *)ctsio); 7156 return(retval); 7157} 7158 7159int 7160ctl_report_supported_tmf(struct ctl_scsiio *ctsio) 7161{ 7162 struct scsi_report_supported_tmf *cdb; 7163 struct scsi_report_supported_tmf_data *data; 7164 int retval; 7165 int alloc_len, total_len; 7166 7167 CTL_DEBUG_PRINT(("ctl_report_supported_tmf\n")); 7168 7169 cdb = (struct scsi_report_supported_tmf *)ctsio->cdb; 7170 7171 retval = CTL_RETVAL_COMPLETE; 7172 7173 total_len = sizeof(struct scsi_report_supported_tmf_data); 7174 alloc_len = scsi_4btoul(cdb->length); 7175 7176 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7177 7178 ctsio->kern_sg_entries = 0; 7179 7180 if (total_len < alloc_len) { 7181 ctsio->residual = alloc_len - total_len; 7182 ctsio->kern_data_len = total_len; 7183 ctsio->kern_total_len = total_len; 7184 } else { 7185 ctsio->residual = 0; 7186 ctsio->kern_data_len = alloc_len; 7187 ctsio->kern_total_len = alloc_len; 7188 } 7189 ctsio->kern_data_resid = 0; 7190 ctsio->kern_rel_offset = 0; 7191 7192 data = (struct scsi_report_supported_tmf_data *)ctsio->kern_data_ptr; 7193 data->byte1 |= RST_ATS | RST_ATSS | RST_CTSS | RST_LURS | RST_TRS; 7194 data->byte2 |= RST_ITNRS; 7195 7196 ctl_set_success(ctsio); 7197 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7198 ctsio->be_move_done = ctl_config_move_done; 7199 ctl_datamove((union ctl_io *)ctsio); 7200 return (retval); 7201} 7202 7203int 7204ctl_report_timestamp(struct ctl_scsiio *ctsio) 7205{ 7206 struct scsi_report_timestamp *cdb; 7207 struct scsi_report_timestamp_data *data; 7208 struct timeval tv; 7209 int64_t timestamp; 7210 int retval; 7211 int alloc_len, total_len; 7212 7213 CTL_DEBUG_PRINT(("ctl_report_timestamp\n")); 7214 7215 cdb = (struct scsi_report_timestamp *)ctsio->cdb; 7216 7217 retval = CTL_RETVAL_COMPLETE; 7218 7219 total_len = sizeof(struct scsi_report_timestamp_data); 7220 alloc_len = scsi_4btoul(cdb->length); 7221 7222 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7223 7224 ctsio->kern_sg_entries = 0; 7225 7226 if (total_len < alloc_len) { 7227 ctsio->residual = alloc_len - total_len; 7228 ctsio->kern_data_len = total_len; 7229 ctsio->kern_total_len = total_len; 7230 } else { 7231 ctsio->residual = 0; 7232 ctsio->kern_data_len = alloc_len; 7233 ctsio->kern_total_len = alloc_len; 7234 } 7235 ctsio->kern_data_resid = 0; 7236 ctsio->kern_rel_offset = 0; 7237 7238 data = (struct scsi_report_timestamp_data *)ctsio->kern_data_ptr; 7239 scsi_ulto2b(sizeof(*data) - 2, data->length); 7240 data->origin = RTS_ORIG_OUTSIDE; 7241 getmicrotime(&tv); 7242 timestamp = (int64_t)tv.tv_sec * 1000 + tv.tv_usec / 1000; 7243 scsi_ulto4b(timestamp >> 16, data->timestamp); 7244 scsi_ulto2b(timestamp & 0xffff, &data->timestamp[4]); 7245 7246 ctl_set_success(ctsio); 7247 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7248 ctsio->be_move_done = ctl_config_move_done; 7249 ctl_datamove((union ctl_io *)ctsio); 7250 return (retval); 7251} 7252 7253int 7254ctl_persistent_reserve_in(struct ctl_scsiio *ctsio) 7255{ 7256 struct scsi_per_res_in *cdb; 7257 int alloc_len, total_len = 0; 7258 /* struct scsi_per_res_in_rsrv in_data; */ 7259 struct ctl_lun *lun; 7260 struct ctl_softc *softc; 7261 uint64_t key; 7262 7263 CTL_DEBUG_PRINT(("ctl_persistent_reserve_in\n")); 7264 7265 cdb = (struct scsi_per_res_in *)ctsio->cdb; 7266 7267 alloc_len = scsi_2btoul(cdb->length); 7268 7269 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7270 softc = lun->ctl_softc; 7271 7272retry: 7273 mtx_lock(&lun->lun_lock); 7274 switch (cdb->action) { 7275 case SPRI_RK: /* read keys */ 7276 total_len = sizeof(struct scsi_per_res_in_keys) + 7277 lun->pr_key_count * 7278 sizeof(struct scsi_per_res_key); 7279 break; 7280 case SPRI_RR: /* read reservation */ 7281 if (lun->flags & CTL_LUN_PR_RESERVED) 7282 total_len = sizeof(struct scsi_per_res_in_rsrv); 7283 else 7284 total_len = sizeof(struct scsi_per_res_in_header); 7285 break; 7286 case SPRI_RC: /* report capabilities */ 7287 total_len = sizeof(struct scsi_per_res_cap); 7288 break; 7289 case SPRI_RS: /* read full status */ 7290 total_len = sizeof(struct scsi_per_res_in_header) + 7291 (sizeof(struct scsi_per_res_in_full_desc) + 256) * 7292 lun->pr_key_count; 7293 break; 7294 default: 7295 panic("Invalid PR type %x", cdb->action); 7296 } 7297 mtx_unlock(&lun->lun_lock); 7298 7299 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7300 7301 if (total_len < alloc_len) { 7302 ctsio->residual = alloc_len - total_len; 7303 ctsio->kern_data_len = total_len; 7304 ctsio->kern_total_len = total_len; 7305 } else { 7306 ctsio->residual = 0; 7307 ctsio->kern_data_len = alloc_len; 7308 ctsio->kern_total_len = alloc_len; 7309 } 7310 7311 ctsio->kern_data_resid = 0; 7312 ctsio->kern_rel_offset = 0; 7313 ctsio->kern_sg_entries = 0; 7314 7315 mtx_lock(&lun->lun_lock); 7316 switch (cdb->action) { 7317 case SPRI_RK: { // read keys 7318 struct scsi_per_res_in_keys *res_keys; 7319 int i, key_count; 7320 7321 res_keys = (struct scsi_per_res_in_keys*)ctsio->kern_data_ptr; 7322 7323 /* 7324 * We had to drop the lock to allocate our buffer, which 7325 * leaves time for someone to come in with another 7326 * persistent reservation. (That is unlikely, though, 7327 * since this should be the only persistent reservation 7328 * command active right now.) 7329 */ 7330 if (total_len != (sizeof(struct scsi_per_res_in_keys) + 7331 (lun->pr_key_count * 7332 sizeof(struct scsi_per_res_key)))){ 7333 mtx_unlock(&lun->lun_lock); 7334 free(ctsio->kern_data_ptr, M_CTL); 7335 printf("%s: reservation length changed, retrying\n", 7336 __func__); 7337 goto retry; 7338 } 7339 7340 scsi_ulto4b(lun->PRGeneration, res_keys->header.generation); 7341 7342 scsi_ulto4b(sizeof(struct scsi_per_res_key) * 7343 lun->pr_key_count, res_keys->header.length); 7344 7345 for (i = 0, key_count = 0; i < 2*CTL_MAX_INITIATORS; i++) { 7346 if ((key = ctl_get_prkey(lun, i)) == 0) 7347 continue; 7348 7349 /* 7350 * We used lun->pr_key_count to calculate the 7351 * size to allocate. If it turns out the number of 7352 * initiators with the registered flag set is 7353 * larger than that (i.e. they haven't been kept in 7354 * sync), we've got a problem. 7355 */ 7356 if (key_count >= lun->pr_key_count) { 7357#ifdef NEEDTOPORT 7358 csevent_log(CSC_CTL | CSC_SHELF_SW | 7359 CTL_PR_ERROR, 7360 csevent_LogType_Fault, 7361 csevent_AlertLevel_Yellow, 7362 csevent_FRU_ShelfController, 7363 csevent_FRU_Firmware, 7364 csevent_FRU_Unknown, 7365 "registered keys %d >= key " 7366 "count %d", key_count, 7367 lun->pr_key_count); 7368#endif 7369 key_count++; 7370 continue; 7371 } 7372 scsi_u64to8b(key, res_keys->keys[key_count].key); 7373 key_count++; 7374 } 7375 break; 7376 } 7377 case SPRI_RR: { // read reservation 7378 struct scsi_per_res_in_rsrv *res; 7379 int tmp_len, header_only; 7380 7381 res = (struct scsi_per_res_in_rsrv *)ctsio->kern_data_ptr; 7382 7383 scsi_ulto4b(lun->PRGeneration, res->header.generation); 7384 7385 if (lun->flags & CTL_LUN_PR_RESERVED) 7386 { 7387 tmp_len = sizeof(struct scsi_per_res_in_rsrv); 7388 scsi_ulto4b(sizeof(struct scsi_per_res_in_rsrv_data), 7389 res->header.length); 7390 header_only = 0; 7391 } else { 7392 tmp_len = sizeof(struct scsi_per_res_in_header); 7393 scsi_ulto4b(0, res->header.length); 7394 header_only = 1; 7395 } 7396 7397 /* 7398 * We had to drop the lock to allocate our buffer, which 7399 * leaves time for someone to come in with another 7400 * persistent reservation. (That is unlikely, though, 7401 * since this should be the only persistent reservation 7402 * command active right now.) 7403 */ 7404 if (tmp_len != total_len) { 7405 mtx_unlock(&lun->lun_lock); 7406 free(ctsio->kern_data_ptr, M_CTL); 7407 printf("%s: reservation status changed, retrying\n", 7408 __func__); 7409 goto retry; 7410 } 7411 7412 /* 7413 * No reservation held, so we're done. 7414 */ 7415 if (header_only != 0) 7416 break; 7417 7418 /* 7419 * If the registration is an All Registrants type, the key 7420 * is 0, since it doesn't really matter. 7421 */ 7422 if (lun->pr_res_idx != CTL_PR_ALL_REGISTRANTS) { 7423 scsi_u64to8b(ctl_get_prkey(lun, lun->pr_res_idx), 7424 res->data.reservation); 7425 } 7426 res->data.scopetype = lun->res_type; 7427 break; 7428 } 7429 case SPRI_RC: //report capabilities 7430 { 7431 struct scsi_per_res_cap *res_cap; 7432 uint16_t type_mask; 7433 7434 res_cap = (struct scsi_per_res_cap *)ctsio->kern_data_ptr; 7435 scsi_ulto2b(sizeof(*res_cap), res_cap->length); 7436 res_cap->flags2 |= SPRI_TMV | SPRI_ALLOW_5; 7437 type_mask = SPRI_TM_WR_EX_AR | 7438 SPRI_TM_EX_AC_RO | 7439 SPRI_TM_WR_EX_RO | 7440 SPRI_TM_EX_AC | 7441 SPRI_TM_WR_EX | 7442 SPRI_TM_EX_AC_AR; 7443 scsi_ulto2b(type_mask, res_cap->type_mask); 7444 break; 7445 } 7446 case SPRI_RS: { // read full status 7447 struct scsi_per_res_in_full *res_status; 7448 struct scsi_per_res_in_full_desc *res_desc; 7449 struct ctl_port *port; 7450 int i, len; 7451 7452 res_status = (struct scsi_per_res_in_full*)ctsio->kern_data_ptr; 7453 7454 /* 7455 * We had to drop the lock to allocate our buffer, which 7456 * leaves time for someone to come in with another 7457 * persistent reservation. (That is unlikely, though, 7458 * since this should be the only persistent reservation 7459 * command active right now.) 7460 */ 7461 if (total_len < (sizeof(struct scsi_per_res_in_header) + 7462 (sizeof(struct scsi_per_res_in_full_desc) + 256) * 7463 lun->pr_key_count)){ 7464 mtx_unlock(&lun->lun_lock); 7465 free(ctsio->kern_data_ptr, M_CTL); 7466 printf("%s: reservation length changed, retrying\n", 7467 __func__); 7468 goto retry; 7469 } 7470 7471 scsi_ulto4b(lun->PRGeneration, res_status->header.generation); 7472 7473 res_desc = &res_status->desc[0]; 7474 for (i = 0; i < 2*CTL_MAX_INITIATORS; i++) { 7475 if ((key = ctl_get_prkey(lun, i)) == 0) 7476 continue; 7477 7478 scsi_u64to8b(key, res_desc->res_key.key); 7479 if ((lun->flags & CTL_LUN_PR_RESERVED) && 7480 (lun->pr_res_idx == i || 7481 lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS)) { 7482 res_desc->flags = SPRI_FULL_R_HOLDER; 7483 res_desc->scopetype = lun->res_type; 7484 } 7485 scsi_ulto2b(i / CTL_MAX_INIT_PER_PORT, 7486 res_desc->rel_trgt_port_id); 7487 len = 0; 7488 port = softc->ctl_ports[ 7489 ctl_port_idx(i / CTL_MAX_INIT_PER_PORT)]; 7490 if (port != NULL) 7491 len = ctl_create_iid(port, 7492 i % CTL_MAX_INIT_PER_PORT, 7493 res_desc->transport_id); 7494 scsi_ulto4b(len, res_desc->additional_length); 7495 res_desc = (struct scsi_per_res_in_full_desc *) 7496 &res_desc->transport_id[len]; 7497 } 7498 scsi_ulto4b((uint8_t *)res_desc - (uint8_t *)&res_status->desc[0], 7499 res_status->header.length); 7500 break; 7501 } 7502 default: 7503 /* 7504 * This is a bug, because we just checked for this above, 7505 * and should have returned an error. 7506 */ 7507 panic("Invalid PR type %x", cdb->action); 7508 break; /* NOTREACHED */ 7509 } 7510 mtx_unlock(&lun->lun_lock); 7511 7512 ctl_set_success(ctsio); 7513 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7514 ctsio->be_move_done = ctl_config_move_done; 7515 ctl_datamove((union ctl_io *)ctsio); 7516 return (CTL_RETVAL_COMPLETE); 7517} 7518 7519static void 7520ctl_est_res_ua(struct ctl_lun *lun, uint32_t residx, ctl_ua_type ua) 7521{ 7522 int off = lun->ctl_softc->persis_offset; 7523 7524 if (residx >= off && residx < off + CTL_MAX_INITIATORS) 7525 ctl_est_ua(lun, residx - off, ua); 7526} 7527 7528/* 7529 * Returns 0 if ctl_persistent_reserve_out() should continue, non-zero if 7530 * it should return. 7531 */ 7532static int 7533ctl_pro_preempt(struct ctl_softc *softc, struct ctl_lun *lun, uint64_t res_key, 7534 uint64_t sa_res_key, uint8_t type, uint32_t residx, 7535 struct ctl_scsiio *ctsio, struct scsi_per_res_out *cdb, 7536 struct scsi_per_res_out_parms* param) 7537{ 7538 union ctl_ha_msg persis_io; 7539 int retval, i; 7540 int isc_retval; 7541 7542 retval = 0; 7543 7544 mtx_lock(&lun->lun_lock); 7545 if (sa_res_key == 0) { 7546 if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS) { 7547 /* validate scope and type */ 7548 if ((cdb->scope_type & SPR_SCOPE_MASK) != 7549 SPR_LU_SCOPE) { 7550 mtx_unlock(&lun->lun_lock); 7551 ctl_set_invalid_field(/*ctsio*/ ctsio, 7552 /*sks_valid*/ 1, 7553 /*command*/ 1, 7554 /*field*/ 2, 7555 /*bit_valid*/ 1, 7556 /*bit*/ 4); 7557 ctl_done((union ctl_io *)ctsio); 7558 return (1); 7559 } 7560 7561 if (type>8 || type==2 || type==4 || type==0) { 7562 mtx_unlock(&lun->lun_lock); 7563 ctl_set_invalid_field(/*ctsio*/ ctsio, 7564 /*sks_valid*/ 1, 7565 /*command*/ 1, 7566 /*field*/ 2, 7567 /*bit_valid*/ 1, 7568 /*bit*/ 0); 7569 ctl_done((union ctl_io *)ctsio); 7570 return (1); 7571 } 7572 7573 /* 7574 * Unregister everybody else and build UA for 7575 * them 7576 */ 7577 for(i=0; i < 2*CTL_MAX_INITIATORS; i++) { 7578 if (i == residx || ctl_get_prkey(lun, i) == 0) 7579 continue; 7580 7581 ctl_clr_prkey(lun, i); 7582 ctl_est_res_ua(lun, i, CTL_UA_REG_PREEMPT); 7583 } 7584 lun->pr_key_count = 1; 7585 lun->res_type = type; 7586 if (lun->res_type != SPR_TYPE_WR_EX_AR 7587 && lun->res_type != SPR_TYPE_EX_AC_AR) 7588 lun->pr_res_idx = residx; 7589 7590 /* send msg to other side */ 7591 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 7592 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 7593 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 7594 persis_io.pr.pr_info.residx = lun->pr_res_idx; 7595 persis_io.pr.pr_info.res_type = type; 7596 memcpy(persis_io.pr.pr_info.sa_res_key, 7597 param->serv_act_res_key, 7598 sizeof(param->serv_act_res_key)); 7599 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 7600 &persis_io, sizeof(persis_io), 0)) > 7601 CTL_HA_STATUS_SUCCESS) { 7602 printf("CTL:Persis Out error returned " 7603 "from ctl_ha_msg_send %d\n", 7604 isc_retval); 7605 } 7606 } else { 7607 /* not all registrants */ 7608 mtx_unlock(&lun->lun_lock); 7609 free(ctsio->kern_data_ptr, M_CTL); 7610 ctl_set_invalid_field(ctsio, 7611 /*sks_valid*/ 1, 7612 /*command*/ 0, 7613 /*field*/ 8, 7614 /*bit_valid*/ 0, 7615 /*bit*/ 0); 7616 ctl_done((union ctl_io *)ctsio); 7617 return (1); 7618 } 7619 } else if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS 7620 || !(lun->flags & CTL_LUN_PR_RESERVED)) { 7621 int found = 0; 7622 7623 if (res_key == sa_res_key) { 7624 /* special case */ 7625 /* 7626 * The spec implies this is not good but doesn't 7627 * say what to do. There are two choices either 7628 * generate a res conflict or check condition 7629 * with illegal field in parameter data. Since 7630 * that is what is done when the sa_res_key is 7631 * zero I'll take that approach since this has 7632 * to do with the sa_res_key. 7633 */ 7634 mtx_unlock(&lun->lun_lock); 7635 free(ctsio->kern_data_ptr, M_CTL); 7636 ctl_set_invalid_field(ctsio, 7637 /*sks_valid*/ 1, 7638 /*command*/ 0, 7639 /*field*/ 8, 7640 /*bit_valid*/ 0, 7641 /*bit*/ 0); 7642 ctl_done((union ctl_io *)ctsio); 7643 return (1); 7644 } 7645 7646 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) { 7647 if (ctl_get_prkey(lun, i) != sa_res_key) 7648 continue; 7649 7650 found = 1; 7651 ctl_clr_prkey(lun, i); 7652 lun->pr_key_count--; 7653 ctl_est_res_ua(lun, i, CTL_UA_REG_PREEMPT); 7654 } 7655 if (!found) { 7656 mtx_unlock(&lun->lun_lock); 7657 free(ctsio->kern_data_ptr, M_CTL); 7658 ctl_set_reservation_conflict(ctsio); 7659 ctl_done((union ctl_io *)ctsio); 7660 return (CTL_RETVAL_COMPLETE); 7661 } 7662 /* send msg to other side */ 7663 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 7664 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 7665 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 7666 persis_io.pr.pr_info.residx = lun->pr_res_idx; 7667 persis_io.pr.pr_info.res_type = type; 7668 memcpy(persis_io.pr.pr_info.sa_res_key, 7669 param->serv_act_res_key, 7670 sizeof(param->serv_act_res_key)); 7671 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 7672 &persis_io, sizeof(persis_io), 0)) > 7673 CTL_HA_STATUS_SUCCESS) { 7674 printf("CTL:Persis Out error returned from " 7675 "ctl_ha_msg_send %d\n", isc_retval); 7676 } 7677 } else { 7678 /* Reserved but not all registrants */ 7679 /* sa_res_key is res holder */ 7680 if (sa_res_key == ctl_get_prkey(lun, lun->pr_res_idx)) { 7681 /* validate scope and type */ 7682 if ((cdb->scope_type & SPR_SCOPE_MASK) != 7683 SPR_LU_SCOPE) { 7684 mtx_unlock(&lun->lun_lock); 7685 ctl_set_invalid_field(/*ctsio*/ ctsio, 7686 /*sks_valid*/ 1, 7687 /*command*/ 1, 7688 /*field*/ 2, 7689 /*bit_valid*/ 1, 7690 /*bit*/ 4); 7691 ctl_done((union ctl_io *)ctsio); 7692 return (1); 7693 } 7694 7695 if (type>8 || type==2 || type==4 || type==0) { 7696 mtx_unlock(&lun->lun_lock); 7697 ctl_set_invalid_field(/*ctsio*/ ctsio, 7698 /*sks_valid*/ 1, 7699 /*command*/ 1, 7700 /*field*/ 2, 7701 /*bit_valid*/ 1, 7702 /*bit*/ 0); 7703 ctl_done((union ctl_io *)ctsio); 7704 return (1); 7705 } 7706 7707 /* 7708 * Do the following: 7709 * if sa_res_key != res_key remove all 7710 * registrants w/sa_res_key and generate UA 7711 * for these registrants(Registrations 7712 * Preempted) if it wasn't an exclusive 7713 * reservation generate UA(Reservations 7714 * Preempted) for all other registered nexuses 7715 * if the type has changed. Establish the new 7716 * reservation and holder. If res_key and 7717 * sa_res_key are the same do the above 7718 * except don't unregister the res holder. 7719 */ 7720 7721 for(i=0; i < 2*CTL_MAX_INITIATORS; i++) { 7722 if (i == residx || ctl_get_prkey(lun, i) == 0) 7723 continue; 7724 7725 if (sa_res_key == ctl_get_prkey(lun, i)) { 7726 ctl_clr_prkey(lun, i); 7727 lun->pr_key_count--; 7728 ctl_est_res_ua(lun, i, CTL_UA_REG_PREEMPT); 7729 } else if (type != lun->res_type 7730 && (lun->res_type == SPR_TYPE_WR_EX_RO 7731 || lun->res_type ==SPR_TYPE_EX_AC_RO)){ 7732 ctl_est_res_ua(lun, i, CTL_UA_RES_RELEASE); 7733 } 7734 } 7735 lun->res_type = type; 7736 if (lun->res_type != SPR_TYPE_WR_EX_AR 7737 && lun->res_type != SPR_TYPE_EX_AC_AR) 7738 lun->pr_res_idx = residx; 7739 else 7740 lun->pr_res_idx = CTL_PR_ALL_REGISTRANTS; 7741 7742 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 7743 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 7744 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 7745 persis_io.pr.pr_info.residx = lun->pr_res_idx; 7746 persis_io.pr.pr_info.res_type = type; 7747 memcpy(persis_io.pr.pr_info.sa_res_key, 7748 param->serv_act_res_key, 7749 sizeof(param->serv_act_res_key)); 7750 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 7751 &persis_io, sizeof(persis_io), 0)) > 7752 CTL_HA_STATUS_SUCCESS) { 7753 printf("CTL:Persis Out error returned " 7754 "from ctl_ha_msg_send %d\n", 7755 isc_retval); 7756 } 7757 } else { 7758 /* 7759 * sa_res_key is not the res holder just 7760 * remove registrants 7761 */ 7762 int found=0; 7763 7764 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) { 7765 if (sa_res_key != ctl_get_prkey(lun, i)) 7766 continue; 7767 7768 found = 1; 7769 ctl_clr_prkey(lun, i); 7770 lun->pr_key_count--; 7771 ctl_est_res_ua(lun, i, CTL_UA_REG_PREEMPT); 7772 } 7773 7774 if (!found) { 7775 mtx_unlock(&lun->lun_lock); 7776 free(ctsio->kern_data_ptr, M_CTL); 7777 ctl_set_reservation_conflict(ctsio); 7778 ctl_done((union ctl_io *)ctsio); 7779 return (1); 7780 } 7781 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 7782 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 7783 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 7784 persis_io.pr.pr_info.residx = lun->pr_res_idx; 7785 persis_io.pr.pr_info.res_type = type; 7786 memcpy(persis_io.pr.pr_info.sa_res_key, 7787 param->serv_act_res_key, 7788 sizeof(param->serv_act_res_key)); 7789 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 7790 &persis_io, sizeof(persis_io), 0)) > 7791 CTL_HA_STATUS_SUCCESS) { 7792 printf("CTL:Persis Out error returned " 7793 "from ctl_ha_msg_send %d\n", 7794 isc_retval); 7795 } 7796 } 7797 } 7798 7799 lun->PRGeneration++; 7800 mtx_unlock(&lun->lun_lock); 7801 7802 return (retval); 7803} 7804 7805static void 7806ctl_pro_preempt_other(struct ctl_lun *lun, union ctl_ha_msg *msg) 7807{ 7808 uint64_t sa_res_key; 7809 int i; 7810 7811 sa_res_key = scsi_8btou64(msg->pr.pr_info.sa_res_key); 7812 7813 if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS 7814 || lun->pr_res_idx == CTL_PR_NO_RESERVATION 7815 || sa_res_key != ctl_get_prkey(lun, lun->pr_res_idx)) { 7816 if (sa_res_key == 0) { 7817 /* 7818 * Unregister everybody else and build UA for 7819 * them 7820 */ 7821 for(i=0; i < 2*CTL_MAX_INITIATORS; i++) { 7822 if (i == msg->pr.pr_info.residx || 7823 ctl_get_prkey(lun, i) == 0) 7824 continue; 7825 7826 ctl_clr_prkey(lun, i); 7827 ctl_est_res_ua(lun, i, CTL_UA_REG_PREEMPT); 7828 } 7829 7830 lun->pr_key_count = 1; 7831 lun->res_type = msg->pr.pr_info.res_type; 7832 if (lun->res_type != SPR_TYPE_WR_EX_AR 7833 && lun->res_type != SPR_TYPE_EX_AC_AR) 7834 lun->pr_res_idx = msg->pr.pr_info.residx; 7835 } else { 7836 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) { 7837 if (sa_res_key == ctl_get_prkey(lun, i)) 7838 continue; 7839 7840 ctl_clr_prkey(lun, i); 7841 lun->pr_key_count--; 7842 ctl_est_res_ua(lun, i, CTL_UA_REG_PREEMPT); 7843 } 7844 } 7845 } else { 7846 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) { 7847 if (i == msg->pr.pr_info.residx || 7848 ctl_get_prkey(lun, i) == 0) 7849 continue; 7850 7851 if (sa_res_key == ctl_get_prkey(lun, i)) { 7852 ctl_clr_prkey(lun, i); 7853 lun->pr_key_count--; 7854 ctl_est_res_ua(lun, i, CTL_UA_REG_PREEMPT); 7855 } else if (msg->pr.pr_info.res_type != lun->res_type 7856 && (lun->res_type == SPR_TYPE_WR_EX_RO 7857 || lun->res_type == SPR_TYPE_EX_AC_RO)) { 7858 ctl_est_res_ua(lun, i, CTL_UA_RES_RELEASE); 7859 } 7860 } 7861 lun->res_type = msg->pr.pr_info.res_type; 7862 if (lun->res_type != SPR_TYPE_WR_EX_AR 7863 && lun->res_type != SPR_TYPE_EX_AC_AR) 7864 lun->pr_res_idx = msg->pr.pr_info.residx; 7865 else 7866 lun->pr_res_idx = CTL_PR_ALL_REGISTRANTS; 7867 } 7868 lun->PRGeneration++; 7869 7870} 7871 7872 7873int 7874ctl_persistent_reserve_out(struct ctl_scsiio *ctsio) 7875{ 7876 int retval; 7877 int isc_retval; 7878 u_int32_t param_len; 7879 struct scsi_per_res_out *cdb; 7880 struct ctl_lun *lun; 7881 struct scsi_per_res_out_parms* param; 7882 struct ctl_softc *softc; 7883 uint32_t residx; 7884 uint64_t res_key, sa_res_key, key; 7885 uint8_t type; 7886 union ctl_ha_msg persis_io; 7887 int i; 7888 7889 CTL_DEBUG_PRINT(("ctl_persistent_reserve_out\n")); 7890 7891 retval = CTL_RETVAL_COMPLETE; 7892 7893 cdb = (struct scsi_per_res_out *)ctsio->cdb; 7894 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7895 softc = lun->ctl_softc; 7896 7897 /* 7898 * We only support whole-LUN scope. The scope & type are ignored for 7899 * register, register and ignore existing key and clear. 7900 * We sometimes ignore scope and type on preempts too!! 7901 * Verify reservation type here as well. 7902 */ 7903 type = cdb->scope_type & SPR_TYPE_MASK; 7904 if ((cdb->action == SPRO_RESERVE) 7905 || (cdb->action == SPRO_RELEASE)) { 7906 if ((cdb->scope_type & SPR_SCOPE_MASK) != SPR_LU_SCOPE) { 7907 ctl_set_invalid_field(/*ctsio*/ ctsio, 7908 /*sks_valid*/ 1, 7909 /*command*/ 1, 7910 /*field*/ 2, 7911 /*bit_valid*/ 1, 7912 /*bit*/ 4); 7913 ctl_done((union ctl_io *)ctsio); 7914 return (CTL_RETVAL_COMPLETE); 7915 } 7916 7917 if (type>8 || type==2 || type==4 || type==0) { 7918 ctl_set_invalid_field(/*ctsio*/ ctsio, 7919 /*sks_valid*/ 1, 7920 /*command*/ 1, 7921 /*field*/ 2, 7922 /*bit_valid*/ 1, 7923 /*bit*/ 0); 7924 ctl_done((union ctl_io *)ctsio); 7925 return (CTL_RETVAL_COMPLETE); 7926 } 7927 } 7928 7929 param_len = scsi_4btoul(cdb->length); 7930 7931 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 7932 ctsio->kern_data_ptr = malloc(param_len, M_CTL, M_WAITOK); 7933 ctsio->kern_data_len = param_len; 7934 ctsio->kern_total_len = param_len; 7935 ctsio->kern_data_resid = 0; 7936 ctsio->kern_rel_offset = 0; 7937 ctsio->kern_sg_entries = 0; 7938 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7939 ctsio->be_move_done = ctl_config_move_done; 7940 ctl_datamove((union ctl_io *)ctsio); 7941 7942 return (CTL_RETVAL_COMPLETE); 7943 } 7944 7945 param = (struct scsi_per_res_out_parms *)ctsio->kern_data_ptr; 7946 7947 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 7948 res_key = scsi_8btou64(param->res_key.key); 7949 sa_res_key = scsi_8btou64(param->serv_act_res_key); 7950 7951 /* 7952 * Validate the reservation key here except for SPRO_REG_IGNO 7953 * This must be done for all other service actions 7954 */ 7955 if ((cdb->action & SPRO_ACTION_MASK) != SPRO_REG_IGNO) { 7956 mtx_lock(&lun->lun_lock); 7957 if ((key = ctl_get_prkey(lun, residx)) != 0) { 7958 if (res_key != key) { 7959 /* 7960 * The current key passed in doesn't match 7961 * the one the initiator previously 7962 * registered. 7963 */ 7964 mtx_unlock(&lun->lun_lock); 7965 free(ctsio->kern_data_ptr, M_CTL); 7966 ctl_set_reservation_conflict(ctsio); 7967 ctl_done((union ctl_io *)ctsio); 7968 return (CTL_RETVAL_COMPLETE); 7969 } 7970 } else if ((cdb->action & SPRO_ACTION_MASK) != SPRO_REGISTER) { 7971 /* 7972 * We are not registered 7973 */ 7974 mtx_unlock(&lun->lun_lock); 7975 free(ctsio->kern_data_ptr, M_CTL); 7976 ctl_set_reservation_conflict(ctsio); 7977 ctl_done((union ctl_io *)ctsio); 7978 return (CTL_RETVAL_COMPLETE); 7979 } else if (res_key != 0) { 7980 /* 7981 * We are not registered and trying to register but 7982 * the register key isn't zero. 7983 */ 7984 mtx_unlock(&lun->lun_lock); 7985 free(ctsio->kern_data_ptr, M_CTL); 7986 ctl_set_reservation_conflict(ctsio); 7987 ctl_done((union ctl_io *)ctsio); 7988 return (CTL_RETVAL_COMPLETE); 7989 } 7990 mtx_unlock(&lun->lun_lock); 7991 } 7992 7993 switch (cdb->action & SPRO_ACTION_MASK) { 7994 case SPRO_REGISTER: 7995 case SPRO_REG_IGNO: { 7996 7997#if 0 7998 printf("Registration received\n"); 7999#endif 8000 8001 /* 8002 * We don't support any of these options, as we report in 8003 * the read capabilities request (see 8004 * ctl_persistent_reserve_in(), above). 8005 */ 8006 if ((param->flags & SPR_SPEC_I_PT) 8007 || (param->flags & SPR_ALL_TG_PT) 8008 || (param->flags & SPR_APTPL)) { 8009 int bit_ptr; 8010 8011 if (param->flags & SPR_APTPL) 8012 bit_ptr = 0; 8013 else if (param->flags & SPR_ALL_TG_PT) 8014 bit_ptr = 2; 8015 else /* SPR_SPEC_I_PT */ 8016 bit_ptr = 3; 8017 8018 free(ctsio->kern_data_ptr, M_CTL); 8019 ctl_set_invalid_field(ctsio, 8020 /*sks_valid*/ 1, 8021 /*command*/ 0, 8022 /*field*/ 20, 8023 /*bit_valid*/ 1, 8024 /*bit*/ bit_ptr); 8025 ctl_done((union ctl_io *)ctsio); 8026 return (CTL_RETVAL_COMPLETE); 8027 } 8028 8029 mtx_lock(&lun->lun_lock); 8030 8031 /* 8032 * The initiator wants to clear the 8033 * key/unregister. 8034 */ 8035 if (sa_res_key == 0) { 8036 if ((res_key == 0 8037 && (cdb->action & SPRO_ACTION_MASK) == SPRO_REGISTER) 8038 || ((cdb->action & SPRO_ACTION_MASK) == SPRO_REG_IGNO 8039 && ctl_get_prkey(lun, residx) == 0)) { 8040 mtx_unlock(&lun->lun_lock); 8041 goto done; 8042 } 8043 8044 ctl_clr_prkey(lun, residx); 8045 lun->pr_key_count--; 8046 8047 if (residx == lun->pr_res_idx) { 8048 lun->flags &= ~CTL_LUN_PR_RESERVED; 8049 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8050 8051 if ((lun->res_type == SPR_TYPE_WR_EX_RO 8052 || lun->res_type == SPR_TYPE_EX_AC_RO) 8053 && lun->pr_key_count) { 8054 /* 8055 * If the reservation is a registrants 8056 * only type we need to generate a UA 8057 * for other registered inits. The 8058 * sense code should be RESERVATIONS 8059 * RELEASED 8060 */ 8061 8062 for (i = 0; i < CTL_MAX_INITIATORS;i++){ 8063 if (ctl_get_prkey(lun, i + 8064 softc->persis_offset) == 0) 8065 continue; 8066 ctl_est_ua(lun, i, 8067 CTL_UA_RES_RELEASE); 8068 } 8069 } 8070 lun->res_type = 0; 8071 } else if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS) { 8072 if (lun->pr_key_count==0) { 8073 lun->flags &= ~CTL_LUN_PR_RESERVED; 8074 lun->res_type = 0; 8075 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8076 } 8077 } 8078 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8079 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8080 persis_io.pr.pr_info.action = CTL_PR_UNREG_KEY; 8081 persis_io.pr.pr_info.residx = residx; 8082 if ((isc_retval = ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8083 &persis_io, sizeof(persis_io), 0 )) > 8084 CTL_HA_STATUS_SUCCESS) { 8085 printf("CTL:Persis Out error returned from " 8086 "ctl_ha_msg_send %d\n", isc_retval); 8087 } 8088 } else /* sa_res_key != 0 */ { 8089 8090 /* 8091 * If we aren't registered currently then increment 8092 * the key count and set the registered flag. 8093 */ 8094 ctl_alloc_prkey(lun, residx); 8095 if (ctl_get_prkey(lun, residx) == 0) 8096 lun->pr_key_count++; 8097 ctl_set_prkey(lun, residx, sa_res_key); 8098 8099 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8100 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8101 persis_io.pr.pr_info.action = CTL_PR_REG_KEY; 8102 persis_io.pr.pr_info.residx = residx; 8103 memcpy(persis_io.pr.pr_info.sa_res_key, 8104 param->serv_act_res_key, 8105 sizeof(param->serv_act_res_key)); 8106 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8107 &persis_io, sizeof(persis_io), 0)) > 8108 CTL_HA_STATUS_SUCCESS) { 8109 printf("CTL:Persis Out error returned from " 8110 "ctl_ha_msg_send %d\n", isc_retval); 8111 } 8112 } 8113 lun->PRGeneration++; 8114 mtx_unlock(&lun->lun_lock); 8115 8116 break; 8117 } 8118 case SPRO_RESERVE: 8119#if 0 8120 printf("Reserve executed type %d\n", type); 8121#endif 8122 mtx_lock(&lun->lun_lock); 8123 if (lun->flags & CTL_LUN_PR_RESERVED) { 8124 /* 8125 * if this isn't the reservation holder and it's 8126 * not a "all registrants" type or if the type is 8127 * different then we have a conflict 8128 */ 8129 if ((lun->pr_res_idx != residx 8130 && lun->pr_res_idx != CTL_PR_ALL_REGISTRANTS) 8131 || lun->res_type != type) { 8132 mtx_unlock(&lun->lun_lock); 8133 free(ctsio->kern_data_ptr, M_CTL); 8134 ctl_set_reservation_conflict(ctsio); 8135 ctl_done((union ctl_io *)ctsio); 8136 return (CTL_RETVAL_COMPLETE); 8137 } 8138 mtx_unlock(&lun->lun_lock); 8139 } else /* create a reservation */ { 8140 /* 8141 * If it's not an "all registrants" type record 8142 * reservation holder 8143 */ 8144 if (type != SPR_TYPE_WR_EX_AR 8145 && type != SPR_TYPE_EX_AC_AR) 8146 lun->pr_res_idx = residx; /* Res holder */ 8147 else 8148 lun->pr_res_idx = CTL_PR_ALL_REGISTRANTS; 8149 8150 lun->flags |= CTL_LUN_PR_RESERVED; 8151 lun->res_type = type; 8152 8153 mtx_unlock(&lun->lun_lock); 8154 8155 /* send msg to other side */ 8156 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8157 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8158 persis_io.pr.pr_info.action = CTL_PR_RESERVE; 8159 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8160 persis_io.pr.pr_info.res_type = type; 8161 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8162 &persis_io, sizeof(persis_io), 0)) > 8163 CTL_HA_STATUS_SUCCESS) { 8164 printf("CTL:Persis Out error returned from " 8165 "ctl_ha_msg_send %d\n", isc_retval); 8166 } 8167 } 8168 break; 8169 8170 case SPRO_RELEASE: 8171 mtx_lock(&lun->lun_lock); 8172 if ((lun->flags & CTL_LUN_PR_RESERVED) == 0) { 8173 /* No reservation exists return good status */ 8174 mtx_unlock(&lun->lun_lock); 8175 goto done; 8176 } 8177 /* 8178 * Is this nexus a reservation holder? 8179 */ 8180 if (lun->pr_res_idx != residx 8181 && lun->pr_res_idx != CTL_PR_ALL_REGISTRANTS) { 8182 /* 8183 * not a res holder return good status but 8184 * do nothing 8185 */ 8186 mtx_unlock(&lun->lun_lock); 8187 goto done; 8188 } 8189 8190 if (lun->res_type != type) { 8191 mtx_unlock(&lun->lun_lock); 8192 free(ctsio->kern_data_ptr, M_CTL); 8193 ctl_set_illegal_pr_release(ctsio); 8194 ctl_done((union ctl_io *)ctsio); 8195 return (CTL_RETVAL_COMPLETE); 8196 } 8197 8198 /* okay to release */ 8199 lun->flags &= ~CTL_LUN_PR_RESERVED; 8200 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8201 lun->res_type = 0; 8202 8203 /* 8204 * if this isn't an exclusive access 8205 * res generate UA for all other 8206 * registrants. 8207 */ 8208 if (type != SPR_TYPE_EX_AC 8209 && type != SPR_TYPE_WR_EX) { 8210 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 8211 if (i == residx || 8212 ctl_get_prkey(lun, 8213 i + softc->persis_offset) == 0) 8214 continue; 8215 ctl_est_ua(lun, i, CTL_UA_RES_RELEASE); 8216 } 8217 } 8218 mtx_unlock(&lun->lun_lock); 8219 /* Send msg to other side */ 8220 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8221 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8222 persis_io.pr.pr_info.action = CTL_PR_RELEASE; 8223 if ((isc_retval=ctl_ha_msg_send( CTL_HA_CHAN_CTL, &persis_io, 8224 sizeof(persis_io), 0)) > CTL_HA_STATUS_SUCCESS) { 8225 printf("CTL:Persis Out error returned from " 8226 "ctl_ha_msg_send %d\n", isc_retval); 8227 } 8228 break; 8229 8230 case SPRO_CLEAR: 8231 /* send msg to other side */ 8232 8233 mtx_lock(&lun->lun_lock); 8234 lun->flags &= ~CTL_LUN_PR_RESERVED; 8235 lun->res_type = 0; 8236 lun->pr_key_count = 0; 8237 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8238 8239 ctl_clr_prkey(lun, residx); 8240 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) 8241 if (ctl_get_prkey(lun, i) != 0) { 8242 ctl_clr_prkey(lun, i); 8243 ctl_est_res_ua(lun, i, CTL_UA_REG_PREEMPT); 8244 } 8245 lun->PRGeneration++; 8246 mtx_unlock(&lun->lun_lock); 8247 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8248 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8249 persis_io.pr.pr_info.action = CTL_PR_CLEAR; 8250 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8251 sizeof(persis_io), 0)) > CTL_HA_STATUS_SUCCESS) { 8252 printf("CTL:Persis Out error returned from " 8253 "ctl_ha_msg_send %d\n", isc_retval); 8254 } 8255 break; 8256 8257 case SPRO_PREEMPT: 8258 case SPRO_PRE_ABO: { 8259 int nretval; 8260 8261 nretval = ctl_pro_preempt(softc, lun, res_key, sa_res_key, type, 8262 residx, ctsio, cdb, param); 8263 if (nretval != 0) 8264 return (CTL_RETVAL_COMPLETE); 8265 break; 8266 } 8267 default: 8268 panic("Invalid PR type %x", cdb->action); 8269 } 8270 8271done: 8272 free(ctsio->kern_data_ptr, M_CTL); 8273 ctl_set_success(ctsio); 8274 ctl_done((union ctl_io *)ctsio); 8275 8276 return (retval); 8277} 8278 8279/* 8280 * This routine is for handling a message from the other SC pertaining to 8281 * persistent reserve out. All the error checking will have been done 8282 * so only perorming the action need be done here to keep the two 8283 * in sync. 8284 */ 8285static void 8286ctl_hndl_per_res_out_on_other_sc(union ctl_ha_msg *msg) 8287{ 8288 struct ctl_lun *lun; 8289 struct ctl_softc *softc; 8290 int i; 8291 uint32_t targ_lun; 8292 8293 softc = control_softc; 8294 8295 targ_lun = msg->hdr.nexus.targ_mapped_lun; 8296 lun = softc->ctl_luns[targ_lun]; 8297 mtx_lock(&lun->lun_lock); 8298 switch(msg->pr.pr_info.action) { 8299 case CTL_PR_REG_KEY: 8300 ctl_alloc_prkey(lun, msg->pr.pr_info.residx); 8301 if (ctl_get_prkey(lun, msg->pr.pr_info.residx) == 0) 8302 lun->pr_key_count++; 8303 ctl_set_prkey(lun, msg->pr.pr_info.residx, 8304 scsi_8btou64(msg->pr.pr_info.sa_res_key)); 8305 lun->PRGeneration++; 8306 break; 8307 8308 case CTL_PR_UNREG_KEY: 8309 ctl_clr_prkey(lun, msg->pr.pr_info.residx); 8310 lun->pr_key_count--; 8311 8312 /* XXX Need to see if the reservation has been released */ 8313 /* if so do we need to generate UA? */ 8314 if (msg->pr.pr_info.residx == lun->pr_res_idx) { 8315 lun->flags &= ~CTL_LUN_PR_RESERVED; 8316 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8317 8318 if ((lun->res_type == SPR_TYPE_WR_EX_RO 8319 || lun->res_type == SPR_TYPE_EX_AC_RO) 8320 && lun->pr_key_count) { 8321 /* 8322 * If the reservation is a registrants 8323 * only type we need to generate a UA 8324 * for other registered inits. The 8325 * sense code should be RESERVATIONS 8326 * RELEASED 8327 */ 8328 8329 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 8330 if (ctl_get_prkey(lun, i + 8331 softc->persis_offset) == 0) 8332 continue; 8333 8334 ctl_est_ua(lun, i, CTL_UA_RES_RELEASE); 8335 } 8336 } 8337 lun->res_type = 0; 8338 } else if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS) { 8339 if (lun->pr_key_count==0) { 8340 lun->flags &= ~CTL_LUN_PR_RESERVED; 8341 lun->res_type = 0; 8342 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8343 } 8344 } 8345 lun->PRGeneration++; 8346 break; 8347 8348 case CTL_PR_RESERVE: 8349 lun->flags |= CTL_LUN_PR_RESERVED; 8350 lun->res_type = msg->pr.pr_info.res_type; 8351 lun->pr_res_idx = msg->pr.pr_info.residx; 8352 8353 break; 8354 8355 case CTL_PR_RELEASE: 8356 /* 8357 * if this isn't an exclusive access res generate UA for all 8358 * other registrants. 8359 */ 8360 if (lun->res_type != SPR_TYPE_EX_AC 8361 && lun->res_type != SPR_TYPE_WR_EX) { 8362 for (i = 0; i < CTL_MAX_INITIATORS; i++) 8363 if (ctl_get_prkey(lun, i + softc->persis_offset) != 0) 8364 ctl_est_ua(lun, i, CTL_UA_RES_RELEASE); 8365 } 8366 8367 lun->flags &= ~CTL_LUN_PR_RESERVED; 8368 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8369 lun->res_type = 0; 8370 break; 8371 8372 case CTL_PR_PREEMPT: 8373 ctl_pro_preempt_other(lun, msg); 8374 break; 8375 case CTL_PR_CLEAR: 8376 lun->flags &= ~CTL_LUN_PR_RESERVED; 8377 lun->res_type = 0; 8378 lun->pr_key_count = 0; 8379 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8380 8381 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8382 if (ctl_get_prkey(lun, i) == 0) 8383 continue; 8384 ctl_clr_prkey(lun, i); 8385 ctl_est_res_ua(lun, i, CTL_UA_REG_PREEMPT); 8386 } 8387 lun->PRGeneration++; 8388 break; 8389 } 8390 8391 mtx_unlock(&lun->lun_lock); 8392} 8393 8394int 8395ctl_read_write(struct ctl_scsiio *ctsio) 8396{ 8397 struct ctl_lun *lun; 8398 struct ctl_lba_len_flags *lbalen; 8399 uint64_t lba; 8400 uint32_t num_blocks; 8401 int flags, retval; 8402 int isread; 8403 8404 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 8405 8406 CTL_DEBUG_PRINT(("ctl_read_write: command: %#x\n", ctsio->cdb[0])); 8407 8408 flags = 0; 8409 retval = CTL_RETVAL_COMPLETE; 8410 8411 isread = ctsio->cdb[0] == READ_6 || ctsio->cdb[0] == READ_10 8412 || ctsio->cdb[0] == READ_12 || ctsio->cdb[0] == READ_16; 8413 switch (ctsio->cdb[0]) { 8414 case READ_6: 8415 case WRITE_6: { 8416 struct scsi_rw_6 *cdb; 8417 8418 cdb = (struct scsi_rw_6 *)ctsio->cdb; 8419 8420 lba = scsi_3btoul(cdb->addr); 8421 /* only 5 bits are valid in the most significant address byte */ 8422 lba &= 0x1fffff; 8423 num_blocks = cdb->length; 8424 /* 8425 * This is correct according to SBC-2. 8426 */ 8427 if (num_blocks == 0) 8428 num_blocks = 256; 8429 break; 8430 } 8431 case READ_10: 8432 case WRITE_10: { 8433 struct scsi_rw_10 *cdb; 8434 8435 cdb = (struct scsi_rw_10 *)ctsio->cdb; 8436 if (cdb->byte2 & SRW10_FUA) 8437 flags |= CTL_LLF_FUA; 8438 if (cdb->byte2 & SRW10_DPO) 8439 flags |= CTL_LLF_DPO; 8440 lba = scsi_4btoul(cdb->addr); 8441 num_blocks = scsi_2btoul(cdb->length); 8442 break; 8443 } 8444 case WRITE_VERIFY_10: { 8445 struct scsi_write_verify_10 *cdb; 8446 8447 cdb = (struct scsi_write_verify_10 *)ctsio->cdb; 8448 flags |= CTL_LLF_FUA; 8449 if (cdb->byte2 & SWV_DPO) 8450 flags |= CTL_LLF_DPO; 8451 lba = scsi_4btoul(cdb->addr); 8452 num_blocks = scsi_2btoul(cdb->length); 8453 break; 8454 } 8455 case READ_12: 8456 case WRITE_12: { 8457 struct scsi_rw_12 *cdb; 8458 8459 cdb = (struct scsi_rw_12 *)ctsio->cdb; 8460 if (cdb->byte2 & SRW12_FUA) 8461 flags |= CTL_LLF_FUA; 8462 if (cdb->byte2 & SRW12_DPO) 8463 flags |= CTL_LLF_DPO; 8464 lba = scsi_4btoul(cdb->addr); 8465 num_blocks = scsi_4btoul(cdb->length); 8466 break; 8467 } 8468 case WRITE_VERIFY_12: { 8469 struct scsi_write_verify_12 *cdb; 8470 8471 cdb = (struct scsi_write_verify_12 *)ctsio->cdb; 8472 flags |= CTL_LLF_FUA; 8473 if (cdb->byte2 & SWV_DPO) 8474 flags |= CTL_LLF_DPO; 8475 lba = scsi_4btoul(cdb->addr); 8476 num_blocks = scsi_4btoul(cdb->length); 8477 break; 8478 } 8479 case READ_16: 8480 case WRITE_16: { 8481 struct scsi_rw_16 *cdb; 8482 8483 cdb = (struct scsi_rw_16 *)ctsio->cdb; 8484 if (cdb->byte2 & SRW12_FUA) 8485 flags |= CTL_LLF_FUA; 8486 if (cdb->byte2 & SRW12_DPO) 8487 flags |= CTL_LLF_DPO; 8488 lba = scsi_8btou64(cdb->addr); 8489 num_blocks = scsi_4btoul(cdb->length); 8490 break; 8491 } 8492 case WRITE_ATOMIC_16: { 8493 struct scsi_rw_16 *cdb; 8494 8495 if (lun->be_lun->atomicblock == 0) { 8496 ctl_set_invalid_opcode(ctsio); 8497 ctl_done((union ctl_io *)ctsio); 8498 return (CTL_RETVAL_COMPLETE); 8499 } 8500 8501 cdb = (struct scsi_rw_16 *)ctsio->cdb; 8502 if (cdb->byte2 & SRW12_FUA) 8503 flags |= CTL_LLF_FUA; 8504 if (cdb->byte2 & SRW12_DPO) 8505 flags |= CTL_LLF_DPO; 8506 lba = scsi_8btou64(cdb->addr); 8507 num_blocks = scsi_4btoul(cdb->length); 8508 if (num_blocks > lun->be_lun->atomicblock) { 8509 ctl_set_invalid_field(ctsio, /*sks_valid*/ 1, 8510 /*command*/ 1, /*field*/ 12, /*bit_valid*/ 0, 8511 /*bit*/ 0); 8512 ctl_done((union ctl_io *)ctsio); 8513 return (CTL_RETVAL_COMPLETE); 8514 } 8515 break; 8516 } 8517 case WRITE_VERIFY_16: { 8518 struct scsi_write_verify_16 *cdb; 8519 8520 cdb = (struct scsi_write_verify_16 *)ctsio->cdb; 8521 flags |= CTL_LLF_FUA; 8522 if (cdb->byte2 & SWV_DPO) 8523 flags |= CTL_LLF_DPO; 8524 lba = scsi_8btou64(cdb->addr); 8525 num_blocks = scsi_4btoul(cdb->length); 8526 break; 8527 } 8528 default: 8529 /* 8530 * We got a command we don't support. This shouldn't 8531 * happen, commands should be filtered out above us. 8532 */ 8533 ctl_set_invalid_opcode(ctsio); 8534 ctl_done((union ctl_io *)ctsio); 8535 8536 return (CTL_RETVAL_COMPLETE); 8537 break; /* NOTREACHED */ 8538 } 8539 8540 /* 8541 * The first check is to make sure we're in bounds, the second 8542 * check is to catch wrap-around problems. If the lba + num blocks 8543 * is less than the lba, then we've wrapped around and the block 8544 * range is invalid anyway. 8545 */ 8546 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 8547 || ((lba + num_blocks) < lba)) { 8548 ctl_set_lba_out_of_range(ctsio); 8549 ctl_done((union ctl_io *)ctsio); 8550 return (CTL_RETVAL_COMPLETE); 8551 } 8552 8553 /* 8554 * According to SBC-3, a transfer length of 0 is not an error. 8555 * Note that this cannot happen with WRITE(6) or READ(6), since 0 8556 * translates to 256 blocks for those commands. 8557 */ 8558 if (num_blocks == 0) { 8559 ctl_set_success(ctsio); 8560 ctl_done((union ctl_io *)ctsio); 8561 return (CTL_RETVAL_COMPLETE); 8562 } 8563 8564 /* Set FUA and/or DPO if caches are disabled. */ 8565 if (isread) { 8566 if ((lun->mode_pages.caching_page[CTL_PAGE_CURRENT].flags1 & 8567 SCP_RCD) != 0) 8568 flags |= CTL_LLF_FUA | CTL_LLF_DPO; 8569 } else { 8570 if ((lun->mode_pages.caching_page[CTL_PAGE_CURRENT].flags1 & 8571 SCP_WCE) == 0) 8572 flags |= CTL_LLF_FUA; 8573 } 8574 8575 lbalen = (struct ctl_lba_len_flags *) 8576 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 8577 lbalen->lba = lba; 8578 lbalen->len = num_blocks; 8579 lbalen->flags = (isread ? CTL_LLF_READ : CTL_LLF_WRITE) | flags; 8580 8581 ctsio->kern_total_len = num_blocks * lun->be_lun->blocksize; 8582 ctsio->kern_rel_offset = 0; 8583 8584 CTL_DEBUG_PRINT(("ctl_read_write: calling data_submit()\n")); 8585 8586 retval = lun->backend->data_submit((union ctl_io *)ctsio); 8587 8588 return (retval); 8589} 8590 8591static int 8592ctl_cnw_cont(union ctl_io *io) 8593{ 8594 struct ctl_scsiio *ctsio; 8595 struct ctl_lun *lun; 8596 struct ctl_lba_len_flags *lbalen; 8597 int retval; 8598 8599 ctsio = &io->scsiio; 8600 ctsio->io_hdr.status = CTL_STATUS_NONE; 8601 ctsio->io_hdr.flags &= ~CTL_FLAG_IO_CONT; 8602 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 8603 lbalen = (struct ctl_lba_len_flags *) 8604 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 8605 lbalen->flags &= ~CTL_LLF_COMPARE; 8606 lbalen->flags |= CTL_LLF_WRITE; 8607 8608 CTL_DEBUG_PRINT(("ctl_cnw_cont: calling data_submit()\n")); 8609 retval = lun->backend->data_submit((union ctl_io *)ctsio); 8610 return (retval); 8611} 8612 8613int 8614ctl_cnw(struct ctl_scsiio *ctsio) 8615{ 8616 struct ctl_lun *lun; 8617 struct ctl_lba_len_flags *lbalen; 8618 uint64_t lba; 8619 uint32_t num_blocks; 8620 int flags, retval; 8621 8622 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 8623 8624 CTL_DEBUG_PRINT(("ctl_cnw: command: %#x\n", ctsio->cdb[0])); 8625 8626 flags = 0; 8627 retval = CTL_RETVAL_COMPLETE; 8628 8629 switch (ctsio->cdb[0]) { 8630 case COMPARE_AND_WRITE: { 8631 struct scsi_compare_and_write *cdb; 8632 8633 cdb = (struct scsi_compare_and_write *)ctsio->cdb; 8634 if (cdb->byte2 & SRW10_FUA) 8635 flags |= CTL_LLF_FUA; 8636 if (cdb->byte2 & SRW10_DPO) 8637 flags |= CTL_LLF_DPO; 8638 lba = scsi_8btou64(cdb->addr); 8639 num_blocks = cdb->length; 8640 break; 8641 } 8642 default: 8643 /* 8644 * We got a command we don't support. This shouldn't 8645 * happen, commands should be filtered out above us. 8646 */ 8647 ctl_set_invalid_opcode(ctsio); 8648 ctl_done((union ctl_io *)ctsio); 8649 8650 return (CTL_RETVAL_COMPLETE); 8651 break; /* NOTREACHED */ 8652 } 8653 8654 /* 8655 * The first check is to make sure we're in bounds, the second 8656 * check is to catch wrap-around problems. If the lba + num blocks 8657 * is less than the lba, then we've wrapped around and the block 8658 * range is invalid anyway. 8659 */ 8660 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 8661 || ((lba + num_blocks) < lba)) { 8662 ctl_set_lba_out_of_range(ctsio); 8663 ctl_done((union ctl_io *)ctsio); 8664 return (CTL_RETVAL_COMPLETE); 8665 } 8666 8667 /* 8668 * According to SBC-3, a transfer length of 0 is not an error. 8669 */ 8670 if (num_blocks == 0) { 8671 ctl_set_success(ctsio); 8672 ctl_done((union ctl_io *)ctsio); 8673 return (CTL_RETVAL_COMPLETE); 8674 } 8675 8676 /* Set FUA if write cache is disabled. */ 8677 if ((lun->mode_pages.caching_page[CTL_PAGE_CURRENT].flags1 & 8678 SCP_WCE) == 0) 8679 flags |= CTL_LLF_FUA; 8680 8681 ctsio->kern_total_len = 2 * num_blocks * lun->be_lun->blocksize; 8682 ctsio->kern_rel_offset = 0; 8683 8684 /* 8685 * Set the IO_CONT flag, so that if this I/O gets passed to 8686 * ctl_data_submit_done(), it'll get passed back to 8687 * ctl_ctl_cnw_cont() for further processing. 8688 */ 8689 ctsio->io_hdr.flags |= CTL_FLAG_IO_CONT; 8690 ctsio->io_cont = ctl_cnw_cont; 8691 8692 lbalen = (struct ctl_lba_len_flags *) 8693 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 8694 lbalen->lba = lba; 8695 lbalen->len = num_blocks; 8696 lbalen->flags = CTL_LLF_COMPARE | flags; 8697 8698 CTL_DEBUG_PRINT(("ctl_cnw: calling data_submit()\n")); 8699 retval = lun->backend->data_submit((union ctl_io *)ctsio); 8700 return (retval); 8701} 8702 8703int 8704ctl_verify(struct ctl_scsiio *ctsio) 8705{ 8706 struct ctl_lun *lun; 8707 struct ctl_lba_len_flags *lbalen; 8708 uint64_t lba; 8709 uint32_t num_blocks; 8710 int bytchk, flags; 8711 int retval; 8712 8713 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 8714 8715 CTL_DEBUG_PRINT(("ctl_verify: command: %#x\n", ctsio->cdb[0])); 8716 8717 bytchk = 0; 8718 flags = CTL_LLF_FUA; 8719 retval = CTL_RETVAL_COMPLETE; 8720 8721 switch (ctsio->cdb[0]) { 8722 case VERIFY_10: { 8723 struct scsi_verify_10 *cdb; 8724 8725 cdb = (struct scsi_verify_10 *)ctsio->cdb; 8726 if (cdb->byte2 & SVFY_BYTCHK) 8727 bytchk = 1; 8728 if (cdb->byte2 & SVFY_DPO) 8729 flags |= CTL_LLF_DPO; 8730 lba = scsi_4btoul(cdb->addr); 8731 num_blocks = scsi_2btoul(cdb->length); 8732 break; 8733 } 8734 case VERIFY_12: { 8735 struct scsi_verify_12 *cdb; 8736 8737 cdb = (struct scsi_verify_12 *)ctsio->cdb; 8738 if (cdb->byte2 & SVFY_BYTCHK) 8739 bytchk = 1; 8740 if (cdb->byte2 & SVFY_DPO) 8741 flags |= CTL_LLF_DPO; 8742 lba = scsi_4btoul(cdb->addr); 8743 num_blocks = scsi_4btoul(cdb->length); 8744 break; 8745 } 8746 case VERIFY_16: { 8747 struct scsi_rw_16 *cdb; 8748 8749 cdb = (struct scsi_rw_16 *)ctsio->cdb; 8750 if (cdb->byte2 & SVFY_BYTCHK) 8751 bytchk = 1; 8752 if (cdb->byte2 & SVFY_DPO) 8753 flags |= CTL_LLF_DPO; 8754 lba = scsi_8btou64(cdb->addr); 8755 num_blocks = scsi_4btoul(cdb->length); 8756 break; 8757 } 8758 default: 8759 /* 8760 * We got a command we don't support. This shouldn't 8761 * happen, commands should be filtered out above us. 8762 */ 8763 ctl_set_invalid_opcode(ctsio); 8764 ctl_done((union ctl_io *)ctsio); 8765 return (CTL_RETVAL_COMPLETE); 8766 } 8767 8768 /* 8769 * The first check is to make sure we're in bounds, the second 8770 * check is to catch wrap-around problems. If the lba + num blocks 8771 * is less than the lba, then we've wrapped around and the block 8772 * range is invalid anyway. 8773 */ 8774 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 8775 || ((lba + num_blocks) < lba)) { 8776 ctl_set_lba_out_of_range(ctsio); 8777 ctl_done((union ctl_io *)ctsio); 8778 return (CTL_RETVAL_COMPLETE); 8779 } 8780 8781 /* 8782 * According to SBC-3, a transfer length of 0 is not an error. 8783 */ 8784 if (num_blocks == 0) { 8785 ctl_set_success(ctsio); 8786 ctl_done((union ctl_io *)ctsio); 8787 return (CTL_RETVAL_COMPLETE); 8788 } 8789 8790 lbalen = (struct ctl_lba_len_flags *) 8791 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 8792 lbalen->lba = lba; 8793 lbalen->len = num_blocks; 8794 if (bytchk) { 8795 lbalen->flags = CTL_LLF_COMPARE | flags; 8796 ctsio->kern_total_len = num_blocks * lun->be_lun->blocksize; 8797 } else { 8798 lbalen->flags = CTL_LLF_VERIFY | flags; 8799 ctsio->kern_total_len = 0; 8800 } 8801 ctsio->kern_rel_offset = 0; 8802 8803 CTL_DEBUG_PRINT(("ctl_verify: calling data_submit()\n")); 8804 retval = lun->backend->data_submit((union ctl_io *)ctsio); 8805 return (retval); 8806} 8807 8808int 8809ctl_report_luns(struct ctl_scsiio *ctsio) 8810{ 8811 struct ctl_softc *softc = control_softc; 8812 struct scsi_report_luns *cdb; 8813 struct scsi_report_luns_data *lun_data; 8814 struct ctl_lun *lun, *request_lun; 8815 struct ctl_port *port; 8816 int num_luns, retval; 8817 uint32_t alloc_len, lun_datalen; 8818 int num_filled, well_known; 8819 uint32_t initidx, targ_lun_id, lun_id; 8820 8821 retval = CTL_RETVAL_COMPLETE; 8822 well_known = 0; 8823 8824 cdb = (struct scsi_report_luns *)ctsio->cdb; 8825 port = ctl_io_port(&ctsio->io_hdr); 8826 8827 CTL_DEBUG_PRINT(("ctl_report_luns\n")); 8828 8829 mtx_lock(&softc->ctl_lock); 8830 num_luns = 0; 8831 for (targ_lun_id = 0; targ_lun_id < CTL_MAX_LUNS; targ_lun_id++) { 8832 if (ctl_lun_map_from_port(port, targ_lun_id) < CTL_MAX_LUNS) 8833 num_luns++; 8834 } 8835 mtx_unlock(&softc->ctl_lock); 8836 8837 switch (cdb->select_report) { 8838 case RPL_REPORT_DEFAULT: 8839 case RPL_REPORT_ALL: 8840 break; 8841 case RPL_REPORT_WELLKNOWN: 8842 well_known = 1; 8843 num_luns = 0; 8844 break; 8845 default: 8846 ctl_set_invalid_field(ctsio, 8847 /*sks_valid*/ 1, 8848 /*command*/ 1, 8849 /*field*/ 2, 8850 /*bit_valid*/ 0, 8851 /*bit*/ 0); 8852 ctl_done((union ctl_io *)ctsio); 8853 return (retval); 8854 break; /* NOTREACHED */ 8855 } 8856 8857 alloc_len = scsi_4btoul(cdb->length); 8858 /* 8859 * The initiator has to allocate at least 16 bytes for this request, 8860 * so he can at least get the header and the first LUN. Otherwise 8861 * we reject the request (per SPC-3 rev 14, section 6.21). 8862 */ 8863 if (alloc_len < (sizeof(struct scsi_report_luns_data) + 8864 sizeof(struct scsi_report_luns_lundata))) { 8865 ctl_set_invalid_field(ctsio, 8866 /*sks_valid*/ 1, 8867 /*command*/ 1, 8868 /*field*/ 6, 8869 /*bit_valid*/ 0, 8870 /*bit*/ 0); 8871 ctl_done((union ctl_io *)ctsio); 8872 return (retval); 8873 } 8874 8875 request_lun = (struct ctl_lun *) 8876 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 8877 8878 lun_datalen = sizeof(*lun_data) + 8879 (num_luns * sizeof(struct scsi_report_luns_lundata)); 8880 8881 ctsio->kern_data_ptr = malloc(lun_datalen, M_CTL, M_WAITOK | M_ZERO); 8882 lun_data = (struct scsi_report_luns_data *)ctsio->kern_data_ptr; 8883 ctsio->kern_sg_entries = 0; 8884 8885 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 8886 8887 mtx_lock(&softc->ctl_lock); 8888 for (targ_lun_id = 0, num_filled = 0; targ_lun_id < CTL_MAX_LUNS && num_filled < num_luns; targ_lun_id++) { 8889 lun_id = ctl_lun_map_from_port(port, targ_lun_id); 8890 if (lun_id >= CTL_MAX_LUNS) 8891 continue; 8892 lun = softc->ctl_luns[lun_id]; 8893 if (lun == NULL) 8894 continue; 8895 8896 if (targ_lun_id <= 0xff) { 8897 /* 8898 * Peripheral addressing method, bus number 0. 8899 */ 8900 lun_data->luns[num_filled].lundata[0] = 8901 RPL_LUNDATA_ATYP_PERIPH; 8902 lun_data->luns[num_filled].lundata[1] = targ_lun_id; 8903 num_filled++; 8904 } else if (targ_lun_id <= 0x3fff) { 8905 /* 8906 * Flat addressing method. 8907 */ 8908 lun_data->luns[num_filled].lundata[0] = 8909 RPL_LUNDATA_ATYP_FLAT | (targ_lun_id >> 8); 8910 lun_data->luns[num_filled].lundata[1] = 8911 (targ_lun_id & 0xff); 8912 num_filled++; 8913 } else if (targ_lun_id <= 0xffffff) { 8914 /* 8915 * Extended flat addressing method. 8916 */ 8917 lun_data->luns[num_filled].lundata[0] = 8918 RPL_LUNDATA_ATYP_EXTLUN | 0x12; 8919 scsi_ulto3b(targ_lun_id, 8920 &lun_data->luns[num_filled].lundata[1]); 8921 num_filled++; 8922 } else { 8923 printf("ctl_report_luns: bogus LUN number %jd, " 8924 "skipping\n", (intmax_t)targ_lun_id); 8925 } 8926 /* 8927 * According to SPC-3, rev 14 section 6.21: 8928 * 8929 * "The execution of a REPORT LUNS command to any valid and 8930 * installed logical unit shall clear the REPORTED LUNS DATA 8931 * HAS CHANGED unit attention condition for all logical 8932 * units of that target with respect to the requesting 8933 * initiator. A valid and installed logical unit is one 8934 * having a PERIPHERAL QUALIFIER of 000b in the standard 8935 * INQUIRY data (see 6.4.2)." 8936 * 8937 * If request_lun is NULL, the LUN this report luns command 8938 * was issued to is either disabled or doesn't exist. In that 8939 * case, we shouldn't clear any pending lun change unit 8940 * attention. 8941 */ 8942 if (request_lun != NULL) { 8943 mtx_lock(&lun->lun_lock); 8944 ctl_clr_ua(lun, initidx, CTL_UA_LUN_CHANGE); 8945 mtx_unlock(&lun->lun_lock); 8946 } 8947 } 8948 mtx_unlock(&softc->ctl_lock); 8949 8950 /* 8951 * It's quite possible that we've returned fewer LUNs than we allocated 8952 * space for. Trim it. 8953 */ 8954 lun_datalen = sizeof(*lun_data) + 8955 (num_filled * sizeof(struct scsi_report_luns_lundata)); 8956 8957 if (lun_datalen < alloc_len) { 8958 ctsio->residual = alloc_len - lun_datalen; 8959 ctsio->kern_data_len = lun_datalen; 8960 ctsio->kern_total_len = lun_datalen; 8961 } else { 8962 ctsio->residual = 0; 8963 ctsio->kern_data_len = alloc_len; 8964 ctsio->kern_total_len = alloc_len; 8965 } 8966 ctsio->kern_data_resid = 0; 8967 ctsio->kern_rel_offset = 0; 8968 ctsio->kern_sg_entries = 0; 8969 8970 /* 8971 * We set this to the actual data length, regardless of how much 8972 * space we actually have to return results. If the user looks at 8973 * this value, he'll know whether or not he allocated enough space 8974 * and reissue the command if necessary. We don't support well 8975 * known logical units, so if the user asks for that, return none. 8976 */ 8977 scsi_ulto4b(lun_datalen - 8, lun_data->length); 8978 8979 /* 8980 * We can only return SCSI_STATUS_CHECK_COND when we can't satisfy 8981 * this request. 8982 */ 8983 ctl_set_success(ctsio); 8984 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 8985 ctsio->be_move_done = ctl_config_move_done; 8986 ctl_datamove((union ctl_io *)ctsio); 8987 return (retval); 8988} 8989 8990int 8991ctl_request_sense(struct ctl_scsiio *ctsio) 8992{ 8993 struct scsi_request_sense *cdb; 8994 struct scsi_sense_data *sense_ptr; 8995 struct ctl_softc *ctl_softc; 8996 struct ctl_lun *lun; 8997 uint32_t initidx; 8998 int have_error; 8999 scsi_sense_data_type sense_format; 9000 ctl_ua_type ua_type; 9001 9002 cdb = (struct scsi_request_sense *)ctsio->cdb; 9003 9004 ctl_softc = control_softc; 9005 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9006 9007 CTL_DEBUG_PRINT(("ctl_request_sense\n")); 9008 9009 /* 9010 * Determine which sense format the user wants. 9011 */ 9012 if (cdb->byte2 & SRS_DESC) 9013 sense_format = SSD_TYPE_DESC; 9014 else 9015 sense_format = SSD_TYPE_FIXED; 9016 9017 ctsio->kern_data_ptr = malloc(sizeof(*sense_ptr), M_CTL, M_WAITOK); 9018 sense_ptr = (struct scsi_sense_data *)ctsio->kern_data_ptr; 9019 ctsio->kern_sg_entries = 0; 9020 9021 /* 9022 * struct scsi_sense_data, which is currently set to 256 bytes, is 9023 * larger than the largest allowed value for the length field in the 9024 * REQUEST SENSE CDB, which is 252 bytes as of SPC-4. 9025 */ 9026 ctsio->residual = 0; 9027 ctsio->kern_data_len = cdb->length; 9028 ctsio->kern_total_len = cdb->length; 9029 9030 ctsio->kern_data_resid = 0; 9031 ctsio->kern_rel_offset = 0; 9032 ctsio->kern_sg_entries = 0; 9033 9034 /* 9035 * If we don't have a LUN, we don't have any pending sense. 9036 */ 9037 if (lun == NULL) 9038 goto no_sense; 9039 9040 have_error = 0; 9041 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 9042 /* 9043 * Check for pending sense, and then for pending unit attentions. 9044 * Pending sense gets returned first, then pending unit attentions. 9045 */ 9046 mtx_lock(&lun->lun_lock); 9047#ifdef CTL_WITH_CA 9048 if (ctl_is_set(lun->have_ca, initidx)) { 9049 scsi_sense_data_type stored_format; 9050 9051 /* 9052 * Check to see which sense format was used for the stored 9053 * sense data. 9054 */ 9055 stored_format = scsi_sense_type(&lun->pending_sense[initidx]); 9056 9057 /* 9058 * If the user requested a different sense format than the 9059 * one we stored, then we need to convert it to the other 9060 * format. If we're going from descriptor to fixed format 9061 * sense data, we may lose things in translation, depending 9062 * on what options were used. 9063 * 9064 * If the stored format is SSD_TYPE_NONE (i.e. invalid), 9065 * for some reason we'll just copy it out as-is. 9066 */ 9067 if ((stored_format == SSD_TYPE_FIXED) 9068 && (sense_format == SSD_TYPE_DESC)) 9069 ctl_sense_to_desc((struct scsi_sense_data_fixed *) 9070 &lun->pending_sense[initidx], 9071 (struct scsi_sense_data_desc *)sense_ptr); 9072 else if ((stored_format == SSD_TYPE_DESC) 9073 && (sense_format == SSD_TYPE_FIXED)) 9074 ctl_sense_to_fixed((struct scsi_sense_data_desc *) 9075 &lun->pending_sense[initidx], 9076 (struct scsi_sense_data_fixed *)sense_ptr); 9077 else 9078 memcpy(sense_ptr, &lun->pending_sense[initidx], 9079 MIN(sizeof(*sense_ptr), 9080 sizeof(lun->pending_sense[initidx]))); 9081 9082 ctl_clear_mask(lun->have_ca, initidx); 9083 have_error = 1; 9084 } else 9085#endif 9086 { 9087 ua_type = ctl_build_ua(lun, initidx, sense_ptr, sense_format); 9088 if (ua_type != CTL_UA_NONE) 9089 have_error = 1; 9090 if (ua_type == CTL_UA_LUN_CHANGE) { 9091 mtx_unlock(&lun->lun_lock); 9092 mtx_lock(&ctl_softc->ctl_lock); 9093 ctl_clr_ua_allluns(ctl_softc, initidx, ua_type); 9094 mtx_unlock(&ctl_softc->ctl_lock); 9095 mtx_lock(&lun->lun_lock); 9096 } 9097 9098 } 9099 mtx_unlock(&lun->lun_lock); 9100 9101 /* 9102 * We already have a pending error, return it. 9103 */ 9104 if (have_error != 0) { 9105 /* 9106 * We report the SCSI status as OK, since the status of the 9107 * request sense command itself is OK. 9108 * We report 0 for the sense length, because we aren't doing 9109 * autosense in this case. We're reporting sense as 9110 * parameter data. 9111 */ 9112 ctl_set_success(ctsio); 9113 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9114 ctsio->be_move_done = ctl_config_move_done; 9115 ctl_datamove((union ctl_io *)ctsio); 9116 return (CTL_RETVAL_COMPLETE); 9117 } 9118 9119no_sense: 9120 9121 /* 9122 * No sense information to report, so we report that everything is 9123 * okay. 9124 */ 9125 ctl_set_sense_data(sense_ptr, 9126 lun, 9127 sense_format, 9128 /*current_error*/ 1, 9129 /*sense_key*/ SSD_KEY_NO_SENSE, 9130 /*asc*/ 0x00, 9131 /*ascq*/ 0x00, 9132 SSD_ELEM_NONE); 9133 9134 /* 9135 * We report 0 for the sense length, because we aren't doing 9136 * autosense in this case. We're reporting sense as parameter data. 9137 */ 9138 ctl_set_success(ctsio); 9139 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9140 ctsio->be_move_done = ctl_config_move_done; 9141 ctl_datamove((union ctl_io *)ctsio); 9142 return (CTL_RETVAL_COMPLETE); 9143} 9144 9145int 9146ctl_tur(struct ctl_scsiio *ctsio) 9147{ 9148 9149 CTL_DEBUG_PRINT(("ctl_tur\n")); 9150 9151 ctl_set_success(ctsio); 9152 ctl_done((union ctl_io *)ctsio); 9153 9154 return (CTL_RETVAL_COMPLETE); 9155} 9156 9157#ifdef notyet 9158static int 9159ctl_cmddt_inquiry(struct ctl_scsiio *ctsio) 9160{ 9161 9162} 9163#endif 9164 9165/* 9166 * SCSI VPD page 0x00, the Supported VPD Pages page. 9167 */ 9168static int 9169ctl_inquiry_evpd_supported(struct ctl_scsiio *ctsio, int alloc_len) 9170{ 9171 struct scsi_vpd_supported_pages *pages; 9172 int sup_page_size; 9173 struct ctl_lun *lun; 9174 int p; 9175 9176 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9177 9178 sup_page_size = sizeof(struct scsi_vpd_supported_pages) * 9179 SCSI_EVPD_NUM_SUPPORTED_PAGES; 9180 ctsio->kern_data_ptr = malloc(sup_page_size, M_CTL, M_WAITOK | M_ZERO); 9181 pages = (struct scsi_vpd_supported_pages *)ctsio->kern_data_ptr; 9182 ctsio->kern_sg_entries = 0; 9183 9184 if (sup_page_size < alloc_len) { 9185 ctsio->residual = alloc_len - sup_page_size; 9186 ctsio->kern_data_len = sup_page_size; 9187 ctsio->kern_total_len = sup_page_size; 9188 } else { 9189 ctsio->residual = 0; 9190 ctsio->kern_data_len = alloc_len; 9191 ctsio->kern_total_len = alloc_len; 9192 } 9193 ctsio->kern_data_resid = 0; 9194 ctsio->kern_rel_offset = 0; 9195 ctsio->kern_sg_entries = 0; 9196 9197 /* 9198 * The control device is always connected. The disk device, on the 9199 * other hand, may not be online all the time. Need to change this 9200 * to figure out whether the disk device is actually online or not. 9201 */ 9202 if (lun != NULL) 9203 pages->device = (SID_QUAL_LU_CONNECTED << 5) | 9204 lun->be_lun->lun_type; 9205 else 9206 pages->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9207 9208 p = 0; 9209 /* Supported VPD pages */ 9210 pages->page_list[p++] = SVPD_SUPPORTED_PAGES; 9211 /* Serial Number */ 9212 pages->page_list[p++] = SVPD_UNIT_SERIAL_NUMBER; 9213 /* Device Identification */ 9214 pages->page_list[p++] = SVPD_DEVICE_ID; 9215 /* Extended INQUIRY Data */ 9216 pages->page_list[p++] = SVPD_EXTENDED_INQUIRY_DATA; 9217 /* Mode Page Policy */ 9218 pages->page_list[p++] = SVPD_MODE_PAGE_POLICY; 9219 /* SCSI Ports */ 9220 pages->page_list[p++] = SVPD_SCSI_PORTS; 9221 /* Third-party Copy */ 9222 pages->page_list[p++] = SVPD_SCSI_TPC; 9223 if (lun != NULL && lun->be_lun->lun_type == T_DIRECT) { 9224 /* Block limits */ 9225 pages->page_list[p++] = SVPD_BLOCK_LIMITS; 9226 /* Block Device Characteristics */ 9227 pages->page_list[p++] = SVPD_BDC; 9228 /* Logical Block Provisioning */ 9229 pages->page_list[p++] = SVPD_LBP; 9230 } 9231 pages->length = p; 9232 9233 ctl_set_success(ctsio); 9234 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9235 ctsio->be_move_done = ctl_config_move_done; 9236 ctl_datamove((union ctl_io *)ctsio); 9237 return (CTL_RETVAL_COMPLETE); 9238} 9239 9240/* 9241 * SCSI VPD page 0x80, the Unit Serial Number page. 9242 */ 9243static int 9244ctl_inquiry_evpd_serial(struct ctl_scsiio *ctsio, int alloc_len) 9245{ 9246 struct scsi_vpd_unit_serial_number *sn_ptr; 9247 struct ctl_lun *lun; 9248 int data_len; 9249 9250 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9251 9252 data_len = 4 + CTL_SN_LEN; 9253 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9254 sn_ptr = (struct scsi_vpd_unit_serial_number *)ctsio->kern_data_ptr; 9255 if (data_len < alloc_len) { 9256 ctsio->residual = alloc_len - data_len; 9257 ctsio->kern_data_len = data_len; 9258 ctsio->kern_total_len = data_len; 9259 } else { 9260 ctsio->residual = 0; 9261 ctsio->kern_data_len = alloc_len; 9262 ctsio->kern_total_len = alloc_len; 9263 } 9264 ctsio->kern_data_resid = 0; 9265 ctsio->kern_rel_offset = 0; 9266 ctsio->kern_sg_entries = 0; 9267 9268 /* 9269 * The control device is always connected. The disk device, on the 9270 * other hand, may not be online all the time. Need to change this 9271 * to figure out whether the disk device is actually online or not. 9272 */ 9273 if (lun != NULL) 9274 sn_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9275 lun->be_lun->lun_type; 9276 else 9277 sn_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9278 9279 sn_ptr->page_code = SVPD_UNIT_SERIAL_NUMBER; 9280 sn_ptr->length = CTL_SN_LEN; 9281 /* 9282 * If we don't have a LUN, we just leave the serial number as 9283 * all spaces. 9284 */ 9285 if (lun != NULL) { 9286 strncpy((char *)sn_ptr->serial_num, 9287 (char *)lun->be_lun->serial_num, CTL_SN_LEN); 9288 } else 9289 memset(sn_ptr->serial_num, 0x20, CTL_SN_LEN); 9290 9291 ctl_set_success(ctsio); 9292 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9293 ctsio->be_move_done = ctl_config_move_done; 9294 ctl_datamove((union ctl_io *)ctsio); 9295 return (CTL_RETVAL_COMPLETE); 9296} 9297 9298 9299/* 9300 * SCSI VPD page 0x86, the Extended INQUIRY Data page. 9301 */ 9302static int 9303ctl_inquiry_evpd_eid(struct ctl_scsiio *ctsio, int alloc_len) 9304{ 9305 struct scsi_vpd_extended_inquiry_data *eid_ptr; 9306 struct ctl_lun *lun; 9307 int data_len; 9308 9309 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9310 9311 data_len = sizeof(struct scsi_vpd_extended_inquiry_data); 9312 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9313 eid_ptr = (struct scsi_vpd_extended_inquiry_data *)ctsio->kern_data_ptr; 9314 ctsio->kern_sg_entries = 0; 9315 9316 if (data_len < alloc_len) { 9317 ctsio->residual = alloc_len - data_len; 9318 ctsio->kern_data_len = data_len; 9319 ctsio->kern_total_len = data_len; 9320 } else { 9321 ctsio->residual = 0; 9322 ctsio->kern_data_len = alloc_len; 9323 ctsio->kern_total_len = alloc_len; 9324 } 9325 ctsio->kern_data_resid = 0; 9326 ctsio->kern_rel_offset = 0; 9327 ctsio->kern_sg_entries = 0; 9328 9329 /* 9330 * The control device is always connected. The disk device, on the 9331 * other hand, may not be online all the time. 9332 */ 9333 if (lun != NULL) 9334 eid_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9335 lun->be_lun->lun_type; 9336 else 9337 eid_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9338 eid_ptr->page_code = SVPD_EXTENDED_INQUIRY_DATA; 9339 scsi_ulto2b(data_len - 4, eid_ptr->page_length); 9340 /* 9341 * We support head of queue, ordered and simple tags. 9342 */ 9343 eid_ptr->flags2 = SVPD_EID_HEADSUP | SVPD_EID_ORDSUP | SVPD_EID_SIMPSUP; 9344 /* 9345 * Volatile cache supported. 9346 */ 9347 eid_ptr->flags3 = SVPD_EID_V_SUP; 9348 9349 /* 9350 * This means that we clear the REPORTED LUNS DATA HAS CHANGED unit 9351 * attention for a particular IT nexus on all LUNs once we report 9352 * it to that nexus once. This bit is required as of SPC-4. 9353 */ 9354 eid_ptr->flags4 = SVPD_EID_LUICLT; 9355 9356 /* 9357 * XXX KDM in order to correctly answer this, we would need 9358 * information from the SIM to determine how much sense data it 9359 * can send. So this would really be a path inquiry field, most 9360 * likely. This can be set to a maximum of 252 according to SPC-4, 9361 * but the hardware may or may not be able to support that much. 9362 * 0 just means that the maximum sense data length is not reported. 9363 */ 9364 eid_ptr->max_sense_length = 0; 9365 9366 ctl_set_success(ctsio); 9367 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9368 ctsio->be_move_done = ctl_config_move_done; 9369 ctl_datamove((union ctl_io *)ctsio); 9370 return (CTL_RETVAL_COMPLETE); 9371} 9372 9373static int 9374ctl_inquiry_evpd_mpp(struct ctl_scsiio *ctsio, int alloc_len) 9375{ 9376 struct scsi_vpd_mode_page_policy *mpp_ptr; 9377 struct ctl_lun *lun; 9378 int data_len; 9379 9380 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9381 9382 data_len = sizeof(struct scsi_vpd_mode_page_policy) + 9383 sizeof(struct scsi_vpd_mode_page_policy_descr); 9384 9385 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9386 mpp_ptr = (struct scsi_vpd_mode_page_policy *)ctsio->kern_data_ptr; 9387 ctsio->kern_sg_entries = 0; 9388 9389 if (data_len < alloc_len) { 9390 ctsio->residual = alloc_len - data_len; 9391 ctsio->kern_data_len = data_len; 9392 ctsio->kern_total_len = data_len; 9393 } else { 9394 ctsio->residual = 0; 9395 ctsio->kern_data_len = alloc_len; 9396 ctsio->kern_total_len = alloc_len; 9397 } 9398 ctsio->kern_data_resid = 0; 9399 ctsio->kern_rel_offset = 0; 9400 ctsio->kern_sg_entries = 0; 9401 9402 /* 9403 * The control device is always connected. The disk device, on the 9404 * other hand, may not be online all the time. 9405 */ 9406 if (lun != NULL) 9407 mpp_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9408 lun->be_lun->lun_type; 9409 else 9410 mpp_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9411 mpp_ptr->page_code = SVPD_MODE_PAGE_POLICY; 9412 scsi_ulto2b(data_len - 4, mpp_ptr->page_length); 9413 mpp_ptr->descr[0].page_code = 0x3f; 9414 mpp_ptr->descr[0].subpage_code = 0xff; 9415 mpp_ptr->descr[0].policy = SVPD_MPP_SHARED; 9416 9417 ctl_set_success(ctsio); 9418 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9419 ctsio->be_move_done = ctl_config_move_done; 9420 ctl_datamove((union ctl_io *)ctsio); 9421 return (CTL_RETVAL_COMPLETE); 9422} 9423 9424/* 9425 * SCSI VPD page 0x83, the Device Identification page. 9426 */ 9427static int 9428ctl_inquiry_evpd_devid(struct ctl_scsiio *ctsio, int alloc_len) 9429{ 9430 struct scsi_vpd_device_id *devid_ptr; 9431 struct scsi_vpd_id_descriptor *desc; 9432 struct ctl_softc *softc; 9433 struct ctl_lun *lun; 9434 struct ctl_port *port; 9435 int data_len; 9436 uint8_t proto; 9437 9438 softc = control_softc; 9439 9440 port = softc->ctl_ports[ctl_port_idx(ctsio->io_hdr.nexus.targ_port)]; 9441 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9442 9443 data_len = sizeof(struct scsi_vpd_device_id) + 9444 sizeof(struct scsi_vpd_id_descriptor) + 9445 sizeof(struct scsi_vpd_id_rel_trgt_port_id) + 9446 sizeof(struct scsi_vpd_id_descriptor) + 9447 sizeof(struct scsi_vpd_id_trgt_port_grp_id); 9448 if (lun && lun->lun_devid) 9449 data_len += lun->lun_devid->len; 9450 if (port->port_devid) 9451 data_len += port->port_devid->len; 9452 if (port->target_devid) 9453 data_len += port->target_devid->len; 9454 9455 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9456 devid_ptr = (struct scsi_vpd_device_id *)ctsio->kern_data_ptr; 9457 ctsio->kern_sg_entries = 0; 9458 9459 if (data_len < alloc_len) { 9460 ctsio->residual = alloc_len - data_len; 9461 ctsio->kern_data_len = data_len; 9462 ctsio->kern_total_len = data_len; 9463 } else { 9464 ctsio->residual = 0; 9465 ctsio->kern_data_len = alloc_len; 9466 ctsio->kern_total_len = alloc_len; 9467 } 9468 ctsio->kern_data_resid = 0; 9469 ctsio->kern_rel_offset = 0; 9470 ctsio->kern_sg_entries = 0; 9471 9472 /* 9473 * The control device is always connected. The disk device, on the 9474 * other hand, may not be online all the time. 9475 */ 9476 if (lun != NULL) 9477 devid_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9478 lun->be_lun->lun_type; 9479 else 9480 devid_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9481 devid_ptr->page_code = SVPD_DEVICE_ID; 9482 scsi_ulto2b(data_len - 4, devid_ptr->length); 9483 9484 if (port->port_type == CTL_PORT_FC) 9485 proto = SCSI_PROTO_FC << 4; 9486 else if (port->port_type == CTL_PORT_ISCSI) 9487 proto = SCSI_PROTO_ISCSI << 4; 9488 else 9489 proto = SCSI_PROTO_SPI << 4; 9490 desc = (struct scsi_vpd_id_descriptor *)devid_ptr->desc_list; 9491 9492 /* 9493 * We're using a LUN association here. i.e., this device ID is a 9494 * per-LUN identifier. 9495 */ 9496 if (lun && lun->lun_devid) { 9497 memcpy(desc, lun->lun_devid->data, lun->lun_devid->len); 9498 desc = (struct scsi_vpd_id_descriptor *)((uint8_t *)desc + 9499 lun->lun_devid->len); 9500 } 9501 9502 /* 9503 * This is for the WWPN which is a port association. 9504 */ 9505 if (port->port_devid) { 9506 memcpy(desc, port->port_devid->data, port->port_devid->len); 9507 desc = (struct scsi_vpd_id_descriptor *)((uint8_t *)desc + 9508 port->port_devid->len); 9509 } 9510 9511 /* 9512 * This is for the Relative Target Port(type 4h) identifier 9513 */ 9514 desc->proto_codeset = proto | SVPD_ID_CODESET_BINARY; 9515 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_PORT | 9516 SVPD_ID_TYPE_RELTARG; 9517 desc->length = 4; 9518 scsi_ulto2b(ctsio->io_hdr.nexus.targ_port, &desc->identifier[2]); 9519 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 9520 sizeof(struct scsi_vpd_id_rel_trgt_port_id)); 9521 9522 /* 9523 * This is for the Target Port Group(type 5h) identifier 9524 */ 9525 desc->proto_codeset = proto | SVPD_ID_CODESET_BINARY; 9526 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_PORT | 9527 SVPD_ID_TYPE_TPORTGRP; 9528 desc->length = 4; 9529 scsi_ulto2b(ctsio->io_hdr.nexus.targ_port / CTL_MAX_PORTS + 1, 9530 &desc->identifier[2]); 9531 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 9532 sizeof(struct scsi_vpd_id_trgt_port_grp_id)); 9533 9534 /* 9535 * This is for the Target identifier 9536 */ 9537 if (port->target_devid) { 9538 memcpy(desc, port->target_devid->data, port->target_devid->len); 9539 } 9540 9541 ctl_set_success(ctsio); 9542 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9543 ctsio->be_move_done = ctl_config_move_done; 9544 ctl_datamove((union ctl_io *)ctsio); 9545 return (CTL_RETVAL_COMPLETE); 9546} 9547 9548static int 9549ctl_inquiry_evpd_scsi_ports(struct ctl_scsiio *ctsio, int alloc_len) 9550{ 9551 struct ctl_softc *softc = control_softc; 9552 struct scsi_vpd_scsi_ports *sp; 9553 struct scsi_vpd_port_designation *pd; 9554 struct scsi_vpd_port_designation_cont *pdc; 9555 struct ctl_lun *lun; 9556 struct ctl_port *port; 9557 int data_len, num_target_ports, iid_len, id_len, g, pg, p; 9558 int num_target_port_groups; 9559 9560 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9561 9562 if (softc->is_single) 9563 num_target_port_groups = 1; 9564 else 9565 num_target_port_groups = NUM_TARGET_PORT_GROUPS; 9566 num_target_ports = 0; 9567 iid_len = 0; 9568 id_len = 0; 9569 mtx_lock(&softc->ctl_lock); 9570 STAILQ_FOREACH(port, &softc->port_list, links) { 9571 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 9572 continue; 9573 if (lun != NULL && 9574 ctl_lun_map_to_port(port, lun->lun) >= CTL_MAX_LUNS) 9575 continue; 9576 num_target_ports++; 9577 if (port->init_devid) 9578 iid_len += port->init_devid->len; 9579 if (port->port_devid) 9580 id_len += port->port_devid->len; 9581 } 9582 mtx_unlock(&softc->ctl_lock); 9583 9584 data_len = sizeof(struct scsi_vpd_scsi_ports) + num_target_port_groups * 9585 num_target_ports * (sizeof(struct scsi_vpd_port_designation) + 9586 sizeof(struct scsi_vpd_port_designation_cont)) + iid_len + id_len; 9587 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9588 sp = (struct scsi_vpd_scsi_ports *)ctsio->kern_data_ptr; 9589 ctsio->kern_sg_entries = 0; 9590 9591 if (data_len < alloc_len) { 9592 ctsio->residual = alloc_len - data_len; 9593 ctsio->kern_data_len = data_len; 9594 ctsio->kern_total_len = data_len; 9595 } else { 9596 ctsio->residual = 0; 9597 ctsio->kern_data_len = alloc_len; 9598 ctsio->kern_total_len = alloc_len; 9599 } 9600 ctsio->kern_data_resid = 0; 9601 ctsio->kern_rel_offset = 0; 9602 ctsio->kern_sg_entries = 0; 9603 9604 /* 9605 * The control device is always connected. The disk device, on the 9606 * other hand, may not be online all the time. Need to change this 9607 * to figure out whether the disk device is actually online or not. 9608 */ 9609 if (lun != NULL) 9610 sp->device = (SID_QUAL_LU_CONNECTED << 5) | 9611 lun->be_lun->lun_type; 9612 else 9613 sp->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9614 9615 sp->page_code = SVPD_SCSI_PORTS; 9616 scsi_ulto2b(data_len - sizeof(struct scsi_vpd_scsi_ports), 9617 sp->page_length); 9618 pd = &sp->design[0]; 9619 9620 mtx_lock(&softc->ctl_lock); 9621 pg = softc->port_offset / CTL_MAX_PORTS; 9622 for (g = 0; g < num_target_port_groups; g++) { 9623 STAILQ_FOREACH(port, &softc->port_list, links) { 9624 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 9625 continue; 9626 if (lun != NULL && 9627 ctl_lun_map_to_port(port, lun->lun) >= CTL_MAX_LUNS) 9628 continue; 9629 p = port->targ_port % CTL_MAX_PORTS + g * CTL_MAX_PORTS; 9630 scsi_ulto2b(p, pd->relative_port_id); 9631 if (port->init_devid && g == pg) { 9632 iid_len = port->init_devid->len; 9633 memcpy(pd->initiator_transportid, 9634 port->init_devid->data, port->init_devid->len); 9635 } else 9636 iid_len = 0; 9637 scsi_ulto2b(iid_len, pd->initiator_transportid_length); 9638 pdc = (struct scsi_vpd_port_designation_cont *) 9639 (&pd->initiator_transportid[iid_len]); 9640 if (port->port_devid && g == pg) { 9641 id_len = port->port_devid->len; 9642 memcpy(pdc->target_port_descriptors, 9643 port->port_devid->data, port->port_devid->len); 9644 } else 9645 id_len = 0; 9646 scsi_ulto2b(id_len, pdc->target_port_descriptors_length); 9647 pd = (struct scsi_vpd_port_designation *) 9648 ((uint8_t *)pdc->target_port_descriptors + id_len); 9649 } 9650 } 9651 mtx_unlock(&softc->ctl_lock); 9652 9653 ctl_set_success(ctsio); 9654 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9655 ctsio->be_move_done = ctl_config_move_done; 9656 ctl_datamove((union ctl_io *)ctsio); 9657 return (CTL_RETVAL_COMPLETE); 9658} 9659 9660static int 9661ctl_inquiry_evpd_block_limits(struct ctl_scsiio *ctsio, int alloc_len) 9662{ 9663 struct scsi_vpd_block_limits *bl_ptr; 9664 struct ctl_lun *lun; 9665 int bs; 9666 9667 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9668 9669 ctsio->kern_data_ptr = malloc(sizeof(*bl_ptr), M_CTL, M_WAITOK | M_ZERO); 9670 bl_ptr = (struct scsi_vpd_block_limits *)ctsio->kern_data_ptr; 9671 ctsio->kern_sg_entries = 0; 9672 9673 if (sizeof(*bl_ptr) < alloc_len) { 9674 ctsio->residual = alloc_len - sizeof(*bl_ptr); 9675 ctsio->kern_data_len = sizeof(*bl_ptr); 9676 ctsio->kern_total_len = sizeof(*bl_ptr); 9677 } else { 9678 ctsio->residual = 0; 9679 ctsio->kern_data_len = alloc_len; 9680 ctsio->kern_total_len = alloc_len; 9681 } 9682 ctsio->kern_data_resid = 0; 9683 ctsio->kern_rel_offset = 0; 9684 ctsio->kern_sg_entries = 0; 9685 9686 /* 9687 * The control device is always connected. The disk device, on the 9688 * other hand, may not be online all the time. Need to change this 9689 * to figure out whether the disk device is actually online or not. 9690 */ 9691 if (lun != NULL) 9692 bl_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9693 lun->be_lun->lun_type; 9694 else 9695 bl_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9696 9697 bl_ptr->page_code = SVPD_BLOCK_LIMITS; 9698 scsi_ulto2b(sizeof(*bl_ptr) - 4, bl_ptr->page_length); 9699 bl_ptr->max_cmp_write_len = 0xff; 9700 scsi_ulto4b(0xffffffff, bl_ptr->max_txfer_len); 9701 if (lun != NULL) { 9702 bs = lun->be_lun->blocksize; 9703 scsi_ulto4b(lun->be_lun->opttxferlen, bl_ptr->opt_txfer_len); 9704 if (lun->be_lun->flags & CTL_LUN_FLAG_UNMAP) { 9705 scsi_ulto4b(0xffffffff, bl_ptr->max_unmap_lba_cnt); 9706 scsi_ulto4b(0xffffffff, bl_ptr->max_unmap_blk_cnt); 9707 if (lun->be_lun->ublockexp != 0) { 9708 scsi_ulto4b((1 << lun->be_lun->ublockexp), 9709 bl_ptr->opt_unmap_grain); 9710 scsi_ulto4b(0x80000000 | lun->be_lun->ublockoff, 9711 bl_ptr->unmap_grain_align); 9712 } 9713 } 9714 scsi_ulto4b(lun->be_lun->atomicblock, 9715 bl_ptr->max_atomic_transfer_length); 9716 scsi_ulto4b(0, bl_ptr->atomic_alignment); 9717 scsi_ulto4b(0, bl_ptr->atomic_transfer_length_granularity); 9718 } 9719 scsi_u64to8b(UINT64_MAX, bl_ptr->max_write_same_length); 9720 9721 ctl_set_success(ctsio); 9722 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9723 ctsio->be_move_done = ctl_config_move_done; 9724 ctl_datamove((union ctl_io *)ctsio); 9725 return (CTL_RETVAL_COMPLETE); 9726} 9727 9728static int 9729ctl_inquiry_evpd_bdc(struct ctl_scsiio *ctsio, int alloc_len) 9730{ 9731 struct scsi_vpd_block_device_characteristics *bdc_ptr; 9732 struct ctl_lun *lun; 9733 const char *value; 9734 u_int i; 9735 9736 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9737 9738 ctsio->kern_data_ptr = malloc(sizeof(*bdc_ptr), M_CTL, M_WAITOK | M_ZERO); 9739 bdc_ptr = (struct scsi_vpd_block_device_characteristics *)ctsio->kern_data_ptr; 9740 ctsio->kern_sg_entries = 0; 9741 9742 if (sizeof(*bdc_ptr) < alloc_len) { 9743 ctsio->residual = alloc_len - sizeof(*bdc_ptr); 9744 ctsio->kern_data_len = sizeof(*bdc_ptr); 9745 ctsio->kern_total_len = sizeof(*bdc_ptr); 9746 } else { 9747 ctsio->residual = 0; 9748 ctsio->kern_data_len = alloc_len; 9749 ctsio->kern_total_len = alloc_len; 9750 } 9751 ctsio->kern_data_resid = 0; 9752 ctsio->kern_rel_offset = 0; 9753 ctsio->kern_sg_entries = 0; 9754 9755 /* 9756 * The control device is always connected. The disk device, on the 9757 * other hand, may not be online all the time. Need to change this 9758 * to figure out whether the disk device is actually online or not. 9759 */ 9760 if (lun != NULL) 9761 bdc_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9762 lun->be_lun->lun_type; 9763 else 9764 bdc_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9765 bdc_ptr->page_code = SVPD_BDC; 9766 scsi_ulto2b(sizeof(*bdc_ptr) - 4, bdc_ptr->page_length); 9767 if (lun != NULL && 9768 (value = ctl_get_opt(&lun->be_lun->options, "rpm")) != NULL) 9769 i = strtol(value, NULL, 0); 9770 else 9771 i = CTL_DEFAULT_ROTATION_RATE; 9772 scsi_ulto2b(i, bdc_ptr->medium_rotation_rate); 9773 if (lun != NULL && 9774 (value = ctl_get_opt(&lun->be_lun->options, "formfactor")) != NULL) 9775 i = strtol(value, NULL, 0); 9776 else 9777 i = 0; 9778 bdc_ptr->wab_wac_ff = (i & 0x0f); 9779 bdc_ptr->flags = SVPD_FUAB | SVPD_VBULS; 9780 9781 ctl_set_success(ctsio); 9782 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9783 ctsio->be_move_done = ctl_config_move_done; 9784 ctl_datamove((union ctl_io *)ctsio); 9785 return (CTL_RETVAL_COMPLETE); 9786} 9787 9788static int 9789ctl_inquiry_evpd_lbp(struct ctl_scsiio *ctsio, int alloc_len) 9790{ 9791 struct scsi_vpd_logical_block_prov *lbp_ptr; 9792 struct ctl_lun *lun; 9793 9794 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9795 9796 ctsio->kern_data_ptr = malloc(sizeof(*lbp_ptr), M_CTL, M_WAITOK | M_ZERO); 9797 lbp_ptr = (struct scsi_vpd_logical_block_prov *)ctsio->kern_data_ptr; 9798 ctsio->kern_sg_entries = 0; 9799 9800 if (sizeof(*lbp_ptr) < alloc_len) { 9801 ctsio->residual = alloc_len - sizeof(*lbp_ptr); 9802 ctsio->kern_data_len = sizeof(*lbp_ptr); 9803 ctsio->kern_total_len = sizeof(*lbp_ptr); 9804 } else { 9805 ctsio->residual = 0; 9806 ctsio->kern_data_len = alloc_len; 9807 ctsio->kern_total_len = alloc_len; 9808 } 9809 ctsio->kern_data_resid = 0; 9810 ctsio->kern_rel_offset = 0; 9811 ctsio->kern_sg_entries = 0; 9812 9813 /* 9814 * The control device is always connected. The disk device, on the 9815 * other hand, may not be online all the time. Need to change this 9816 * to figure out whether the disk device is actually online or not. 9817 */ 9818 if (lun != NULL) 9819 lbp_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9820 lun->be_lun->lun_type; 9821 else 9822 lbp_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9823 9824 lbp_ptr->page_code = SVPD_LBP; 9825 scsi_ulto2b(sizeof(*lbp_ptr) - 4, lbp_ptr->page_length); 9826 lbp_ptr->threshold_exponent = CTL_LBP_EXPONENT; 9827 if (lun != NULL && lun->be_lun->flags & CTL_LUN_FLAG_UNMAP) { 9828 lbp_ptr->flags = SVPD_LBP_UNMAP | SVPD_LBP_WS16 | 9829 SVPD_LBP_WS10 | SVPD_LBP_RZ | SVPD_LBP_ANC_SUP; 9830 lbp_ptr->prov_type = SVPD_LBP_THIN; 9831 } 9832 9833 ctl_set_success(ctsio); 9834 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9835 ctsio->be_move_done = ctl_config_move_done; 9836 ctl_datamove((union ctl_io *)ctsio); 9837 return (CTL_RETVAL_COMPLETE); 9838} 9839 9840/* 9841 * INQUIRY with the EVPD bit set. 9842 */ 9843static int 9844ctl_inquiry_evpd(struct ctl_scsiio *ctsio) 9845{ 9846 struct ctl_lun *lun; 9847 struct scsi_inquiry *cdb; 9848 int alloc_len, retval; 9849 9850 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9851 cdb = (struct scsi_inquiry *)ctsio->cdb; 9852 alloc_len = scsi_2btoul(cdb->length); 9853 9854 switch (cdb->page_code) { 9855 case SVPD_SUPPORTED_PAGES: 9856 retval = ctl_inquiry_evpd_supported(ctsio, alloc_len); 9857 break; 9858 case SVPD_UNIT_SERIAL_NUMBER: 9859 retval = ctl_inquiry_evpd_serial(ctsio, alloc_len); 9860 break; 9861 case SVPD_DEVICE_ID: 9862 retval = ctl_inquiry_evpd_devid(ctsio, alloc_len); 9863 break; 9864 case SVPD_EXTENDED_INQUIRY_DATA: 9865 retval = ctl_inquiry_evpd_eid(ctsio, alloc_len); 9866 break; 9867 case SVPD_MODE_PAGE_POLICY: 9868 retval = ctl_inquiry_evpd_mpp(ctsio, alloc_len); 9869 break; 9870 case SVPD_SCSI_PORTS: 9871 retval = ctl_inquiry_evpd_scsi_ports(ctsio, alloc_len); 9872 break; 9873 case SVPD_SCSI_TPC: 9874 retval = ctl_inquiry_evpd_tpc(ctsio, alloc_len); 9875 break; 9876 case SVPD_BLOCK_LIMITS: 9877 if (lun == NULL || lun->be_lun->lun_type != T_DIRECT) 9878 goto err; 9879 retval = ctl_inquiry_evpd_block_limits(ctsio, alloc_len); 9880 break; 9881 case SVPD_BDC: 9882 if (lun == NULL || lun->be_lun->lun_type != T_DIRECT) 9883 goto err; 9884 retval = ctl_inquiry_evpd_bdc(ctsio, alloc_len); 9885 break; 9886 case SVPD_LBP: 9887 if (lun == NULL || lun->be_lun->lun_type != T_DIRECT) 9888 goto err; 9889 retval = ctl_inquiry_evpd_lbp(ctsio, alloc_len); 9890 break; 9891 default: 9892err: 9893 ctl_set_invalid_field(ctsio, 9894 /*sks_valid*/ 1, 9895 /*command*/ 1, 9896 /*field*/ 2, 9897 /*bit_valid*/ 0, 9898 /*bit*/ 0); 9899 ctl_done((union ctl_io *)ctsio); 9900 retval = CTL_RETVAL_COMPLETE; 9901 break; 9902 } 9903 9904 return (retval); 9905} 9906 9907/* 9908 * Standard INQUIRY data. 9909 */ 9910static int 9911ctl_inquiry_std(struct ctl_scsiio *ctsio) 9912{ 9913 struct scsi_inquiry_data *inq_ptr; 9914 struct scsi_inquiry *cdb; 9915 struct ctl_softc *softc; 9916 struct ctl_lun *lun; 9917 char *val; 9918 uint32_t alloc_len, data_len; 9919 ctl_port_type port_type; 9920 9921 softc = control_softc; 9922 9923 /* 9924 * Figure out whether we're talking to a Fibre Channel port or not. 9925 * We treat the ioctl front end, and any SCSI adapters, as packetized 9926 * SCSI front ends. 9927 */ 9928 port_type = softc->ctl_ports[ 9929 ctl_port_idx(ctsio->io_hdr.nexus.targ_port)]->port_type; 9930 if (port_type == CTL_PORT_IOCTL || port_type == CTL_PORT_INTERNAL) 9931 port_type = CTL_PORT_SCSI; 9932 9933 lun = ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9934 cdb = (struct scsi_inquiry *)ctsio->cdb; 9935 alloc_len = scsi_2btoul(cdb->length); 9936 9937 /* 9938 * We malloc the full inquiry data size here and fill it 9939 * in. If the user only asks for less, we'll give him 9940 * that much. 9941 */ 9942 data_len = offsetof(struct scsi_inquiry_data, vendor_specific1); 9943 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9944 inq_ptr = (struct scsi_inquiry_data *)ctsio->kern_data_ptr; 9945 ctsio->kern_sg_entries = 0; 9946 ctsio->kern_data_resid = 0; 9947 ctsio->kern_rel_offset = 0; 9948 9949 if (data_len < alloc_len) { 9950 ctsio->residual = alloc_len - data_len; 9951 ctsio->kern_data_len = data_len; 9952 ctsio->kern_total_len = data_len; 9953 } else { 9954 ctsio->residual = 0; 9955 ctsio->kern_data_len = alloc_len; 9956 ctsio->kern_total_len = alloc_len; 9957 } 9958 9959 /* 9960 * If we have a LUN configured, report it as connected. Otherwise, 9961 * report that it is offline or no device is supported, depending 9962 * on the value of inquiry_pq_no_lun. 9963 * 9964 * According to the spec (SPC-4 r34), the peripheral qualifier 9965 * SID_QUAL_LU_OFFLINE (001b) is used in the following scenario: 9966 * 9967 * "A peripheral device having the specified peripheral device type 9968 * is not connected to this logical unit. However, the device 9969 * server is capable of supporting the specified peripheral device 9970 * type on this logical unit." 9971 * 9972 * According to the same spec, the peripheral qualifier 9973 * SID_QUAL_BAD_LU (011b) is used in this scenario: 9974 * 9975 * "The device server is not capable of supporting a peripheral 9976 * device on this logical unit. For this peripheral qualifier the 9977 * peripheral device type shall be set to 1Fh. All other peripheral 9978 * device type values are reserved for this peripheral qualifier." 9979 * 9980 * Given the text, it would seem that we probably want to report that 9981 * the LUN is offline here. There is no LUN connected, but we can 9982 * support a LUN at the given LUN number. 9983 * 9984 * In the real world, though, it sounds like things are a little 9985 * different: 9986 * 9987 * - Linux, when presented with a LUN with the offline peripheral 9988 * qualifier, will create an sg driver instance for it. So when 9989 * you attach it to CTL, you wind up with a ton of sg driver 9990 * instances. (One for every LUN that Linux bothered to probe.) 9991 * Linux does this despite the fact that it issues a REPORT LUNs 9992 * to LUN 0 to get the inventory of supported LUNs. 9993 * 9994 * - There is other anecdotal evidence (from Emulex folks) about 9995 * arrays that use the offline peripheral qualifier for LUNs that 9996 * are on the "passive" path in an active/passive array. 9997 * 9998 * So the solution is provide a hopefully reasonable default 9999 * (return bad/no LUN) and allow the user to change the behavior 10000 * with a tunable/sysctl variable. 10001 */ 10002 if (lun != NULL) 10003 inq_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10004 lun->be_lun->lun_type; 10005 else if (softc->inquiry_pq_no_lun == 0) 10006 inq_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10007 else 10008 inq_ptr->device = (SID_QUAL_BAD_LU << 5) | T_NODEVICE; 10009 10010 /* RMB in byte 2 is 0 */ 10011 inq_ptr->version = SCSI_REV_SPC4; 10012 10013 /* 10014 * According to SAM-3, even if a device only supports a single 10015 * level of LUN addressing, it should still set the HISUP bit: 10016 * 10017 * 4.9.1 Logical unit numbers overview 10018 * 10019 * All logical unit number formats described in this standard are 10020 * hierarchical in structure even when only a single level in that 10021 * hierarchy is used. The HISUP bit shall be set to one in the 10022 * standard INQUIRY data (see SPC-2) when any logical unit number 10023 * format described in this standard is used. Non-hierarchical 10024 * formats are outside the scope of this standard. 10025 * 10026 * Therefore we set the HiSup bit here. 10027 * 10028 * The reponse format is 2, per SPC-3. 10029 */ 10030 inq_ptr->response_format = SID_HiSup | 2; 10031 10032 inq_ptr->additional_length = data_len - 10033 (offsetof(struct scsi_inquiry_data, additional_length) + 1); 10034 CTL_DEBUG_PRINT(("additional_length = %d\n", 10035 inq_ptr->additional_length)); 10036 10037 inq_ptr->spc3_flags = SPC3_SID_3PC | SPC3_SID_TPGS_IMPLICIT; 10038 /* 16 bit addressing */ 10039 if (port_type == CTL_PORT_SCSI) 10040 inq_ptr->spc2_flags = SPC2_SID_ADDR16; 10041 /* XXX set the SID_MultiP bit here if we're actually going to 10042 respond on multiple ports */ 10043 inq_ptr->spc2_flags |= SPC2_SID_MultiP; 10044 10045 /* 16 bit data bus, synchronous transfers */ 10046 if (port_type == CTL_PORT_SCSI) 10047 inq_ptr->flags = SID_WBus16 | SID_Sync; 10048 /* 10049 * XXX KDM do we want to support tagged queueing on the control 10050 * device at all? 10051 */ 10052 if ((lun == NULL) 10053 || (lun->be_lun->lun_type != T_PROCESSOR)) 10054 inq_ptr->flags |= SID_CmdQue; 10055 /* 10056 * Per SPC-3, unused bytes in ASCII strings are filled with spaces. 10057 * We have 8 bytes for the vendor name, and 16 bytes for the device 10058 * name and 4 bytes for the revision. 10059 */ 10060 if (lun == NULL || (val = ctl_get_opt(&lun->be_lun->options, 10061 "vendor")) == NULL) { 10062 strncpy(inq_ptr->vendor, CTL_VENDOR, sizeof(inq_ptr->vendor)); 10063 } else { 10064 memset(inq_ptr->vendor, ' ', sizeof(inq_ptr->vendor)); 10065 strncpy(inq_ptr->vendor, val, 10066 min(sizeof(inq_ptr->vendor), strlen(val))); 10067 } 10068 if (lun == NULL) { 10069 strncpy(inq_ptr->product, CTL_DIRECT_PRODUCT, 10070 sizeof(inq_ptr->product)); 10071 } else if ((val = ctl_get_opt(&lun->be_lun->options, "product")) == NULL) { 10072 switch (lun->be_lun->lun_type) { 10073 case T_DIRECT: 10074 strncpy(inq_ptr->product, CTL_DIRECT_PRODUCT, 10075 sizeof(inq_ptr->product)); 10076 break; 10077 case T_PROCESSOR: 10078 strncpy(inq_ptr->product, CTL_PROCESSOR_PRODUCT, 10079 sizeof(inq_ptr->product)); 10080 break; 10081 default: 10082 strncpy(inq_ptr->product, CTL_UNKNOWN_PRODUCT, 10083 sizeof(inq_ptr->product)); 10084 break; 10085 } 10086 } else { 10087 memset(inq_ptr->product, ' ', sizeof(inq_ptr->product)); 10088 strncpy(inq_ptr->product, val, 10089 min(sizeof(inq_ptr->product), strlen(val))); 10090 } 10091 10092 /* 10093 * XXX make this a macro somewhere so it automatically gets 10094 * incremented when we make changes. 10095 */ 10096 if (lun == NULL || (val = ctl_get_opt(&lun->be_lun->options, 10097 "revision")) == NULL) { 10098 strncpy(inq_ptr->revision, "0001", sizeof(inq_ptr->revision)); 10099 } else { 10100 memset(inq_ptr->revision, ' ', sizeof(inq_ptr->revision)); 10101 strncpy(inq_ptr->revision, val, 10102 min(sizeof(inq_ptr->revision), strlen(val))); 10103 } 10104 10105 /* 10106 * For parallel SCSI, we support double transition and single 10107 * transition clocking. We also support QAS (Quick Arbitration 10108 * and Selection) and Information Unit transfers on both the 10109 * control and array devices. 10110 */ 10111 if (port_type == CTL_PORT_SCSI) 10112 inq_ptr->spi3data = SID_SPI_CLOCK_DT_ST | SID_SPI_QAS | 10113 SID_SPI_IUS; 10114 10115 /* SAM-5 (no version claimed) */ 10116 scsi_ulto2b(0x00A0, inq_ptr->version1); 10117 /* SPC-4 (no version claimed) */ 10118 scsi_ulto2b(0x0460, inq_ptr->version2); 10119 if (port_type == CTL_PORT_FC) { 10120 /* FCP-2 ANSI INCITS.350:2003 */ 10121 scsi_ulto2b(0x0917, inq_ptr->version3); 10122 } else if (port_type == CTL_PORT_SCSI) { 10123 /* SPI-4 ANSI INCITS.362:200x */ 10124 scsi_ulto2b(0x0B56, inq_ptr->version3); 10125 } else if (port_type == CTL_PORT_ISCSI) { 10126 /* iSCSI (no version claimed) */ 10127 scsi_ulto2b(0x0960, inq_ptr->version3); 10128 } else if (port_type == CTL_PORT_SAS) { 10129 /* SAS (no version claimed) */ 10130 scsi_ulto2b(0x0BE0, inq_ptr->version3); 10131 } 10132 10133 if (lun == NULL) { 10134 /* SBC-4 (no version claimed) */ 10135 scsi_ulto2b(0x0600, inq_ptr->version4); 10136 } else { 10137 switch (lun->be_lun->lun_type) { 10138 case T_DIRECT: 10139 /* SBC-4 (no version claimed) */ 10140 scsi_ulto2b(0x0600, inq_ptr->version4); 10141 break; 10142 case T_PROCESSOR: 10143 default: 10144 break; 10145 } 10146 } 10147 10148 ctl_set_success(ctsio); 10149 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10150 ctsio->be_move_done = ctl_config_move_done; 10151 ctl_datamove((union ctl_io *)ctsio); 10152 return (CTL_RETVAL_COMPLETE); 10153} 10154 10155int 10156ctl_inquiry(struct ctl_scsiio *ctsio) 10157{ 10158 struct scsi_inquiry *cdb; 10159 int retval; 10160 10161 CTL_DEBUG_PRINT(("ctl_inquiry\n")); 10162 10163 cdb = (struct scsi_inquiry *)ctsio->cdb; 10164 if (cdb->byte2 & SI_EVPD) 10165 retval = ctl_inquiry_evpd(ctsio); 10166 else if (cdb->page_code == 0) 10167 retval = ctl_inquiry_std(ctsio); 10168 else { 10169 ctl_set_invalid_field(ctsio, 10170 /*sks_valid*/ 1, 10171 /*command*/ 1, 10172 /*field*/ 2, 10173 /*bit_valid*/ 0, 10174 /*bit*/ 0); 10175 ctl_done((union ctl_io *)ctsio); 10176 return (CTL_RETVAL_COMPLETE); 10177 } 10178 10179 return (retval); 10180} 10181 10182/* 10183 * For known CDB types, parse the LBA and length. 10184 */ 10185static int 10186ctl_get_lba_len(union ctl_io *io, uint64_t *lba, uint64_t *len) 10187{ 10188 if (io->io_hdr.io_type != CTL_IO_SCSI) 10189 return (1); 10190 10191 switch (io->scsiio.cdb[0]) { 10192 case COMPARE_AND_WRITE: { 10193 struct scsi_compare_and_write *cdb; 10194 10195 cdb = (struct scsi_compare_and_write *)io->scsiio.cdb; 10196 10197 *lba = scsi_8btou64(cdb->addr); 10198 *len = cdb->length; 10199 break; 10200 } 10201 case READ_6: 10202 case WRITE_6: { 10203 struct scsi_rw_6 *cdb; 10204 10205 cdb = (struct scsi_rw_6 *)io->scsiio.cdb; 10206 10207 *lba = scsi_3btoul(cdb->addr); 10208 /* only 5 bits are valid in the most significant address byte */ 10209 *lba &= 0x1fffff; 10210 *len = cdb->length; 10211 break; 10212 } 10213 case READ_10: 10214 case WRITE_10: { 10215 struct scsi_rw_10 *cdb; 10216 10217 cdb = (struct scsi_rw_10 *)io->scsiio.cdb; 10218 10219 *lba = scsi_4btoul(cdb->addr); 10220 *len = scsi_2btoul(cdb->length); 10221 break; 10222 } 10223 case WRITE_VERIFY_10: { 10224 struct scsi_write_verify_10 *cdb; 10225 10226 cdb = (struct scsi_write_verify_10 *)io->scsiio.cdb; 10227 10228 *lba = scsi_4btoul(cdb->addr); 10229 *len = scsi_2btoul(cdb->length); 10230 break; 10231 } 10232 case READ_12: 10233 case WRITE_12: { 10234 struct scsi_rw_12 *cdb; 10235 10236 cdb = (struct scsi_rw_12 *)io->scsiio.cdb; 10237 10238 *lba = scsi_4btoul(cdb->addr); 10239 *len = scsi_4btoul(cdb->length); 10240 break; 10241 } 10242 case WRITE_VERIFY_12: { 10243 struct scsi_write_verify_12 *cdb; 10244 10245 cdb = (struct scsi_write_verify_12 *)io->scsiio.cdb; 10246 10247 *lba = scsi_4btoul(cdb->addr); 10248 *len = scsi_4btoul(cdb->length); 10249 break; 10250 } 10251 case READ_16: 10252 case WRITE_16: 10253 case WRITE_ATOMIC_16: { 10254 struct scsi_rw_16 *cdb; 10255 10256 cdb = (struct scsi_rw_16 *)io->scsiio.cdb; 10257 10258 *lba = scsi_8btou64(cdb->addr); 10259 *len = scsi_4btoul(cdb->length); 10260 break; 10261 } 10262 case WRITE_VERIFY_16: { 10263 struct scsi_write_verify_16 *cdb; 10264 10265 cdb = (struct scsi_write_verify_16 *)io->scsiio.cdb; 10266 10267 *lba = scsi_8btou64(cdb->addr); 10268 *len = scsi_4btoul(cdb->length); 10269 break; 10270 } 10271 case WRITE_SAME_10: { 10272 struct scsi_write_same_10 *cdb; 10273 10274 cdb = (struct scsi_write_same_10 *)io->scsiio.cdb; 10275 10276 *lba = scsi_4btoul(cdb->addr); 10277 *len = scsi_2btoul(cdb->length); 10278 break; 10279 } 10280 case WRITE_SAME_16: { 10281 struct scsi_write_same_16 *cdb; 10282 10283 cdb = (struct scsi_write_same_16 *)io->scsiio.cdb; 10284 10285 *lba = scsi_8btou64(cdb->addr); 10286 *len = scsi_4btoul(cdb->length); 10287 break; 10288 } 10289 case VERIFY_10: { 10290 struct scsi_verify_10 *cdb; 10291 10292 cdb = (struct scsi_verify_10 *)io->scsiio.cdb; 10293 10294 *lba = scsi_4btoul(cdb->addr); 10295 *len = scsi_2btoul(cdb->length); 10296 break; 10297 } 10298 case VERIFY_12: { 10299 struct scsi_verify_12 *cdb; 10300 10301 cdb = (struct scsi_verify_12 *)io->scsiio.cdb; 10302 10303 *lba = scsi_4btoul(cdb->addr); 10304 *len = scsi_4btoul(cdb->length); 10305 break; 10306 } 10307 case VERIFY_16: { 10308 struct scsi_verify_16 *cdb; 10309 10310 cdb = (struct scsi_verify_16 *)io->scsiio.cdb; 10311 10312 *lba = scsi_8btou64(cdb->addr); 10313 *len = scsi_4btoul(cdb->length); 10314 break; 10315 } 10316 case UNMAP: { 10317 *lba = 0; 10318 *len = UINT64_MAX; 10319 break; 10320 } 10321 case SERVICE_ACTION_IN: { /* GET LBA STATUS */ 10322 struct scsi_get_lba_status *cdb; 10323 10324 cdb = (struct scsi_get_lba_status *)io->scsiio.cdb; 10325 *lba = scsi_8btou64(cdb->addr); 10326 *len = UINT32_MAX; 10327 break; 10328 } 10329 default: 10330 return (1); 10331 break; /* NOTREACHED */ 10332 } 10333 10334 return (0); 10335} 10336 10337static ctl_action 10338ctl_extent_check_lba(uint64_t lba1, uint64_t len1, uint64_t lba2, uint64_t len2, 10339 bool seq) 10340{ 10341 uint64_t endlba1, endlba2; 10342 10343 endlba1 = lba1 + len1 - (seq ? 0 : 1); 10344 endlba2 = lba2 + len2 - 1; 10345 10346 if ((endlba1 < lba2) || (endlba2 < lba1)) 10347 return (CTL_ACTION_PASS); 10348 else 10349 return (CTL_ACTION_BLOCK); 10350} 10351 10352static int 10353ctl_extent_check_unmap(union ctl_io *io, uint64_t lba2, uint64_t len2) 10354{ 10355 struct ctl_ptr_len_flags *ptrlen; 10356 struct scsi_unmap_desc *buf, *end, *range; 10357 uint64_t lba; 10358 uint32_t len; 10359 10360 /* If not UNMAP -- go other way. */ 10361 if (io->io_hdr.io_type != CTL_IO_SCSI || 10362 io->scsiio.cdb[0] != UNMAP) 10363 return (CTL_ACTION_ERROR); 10364 10365 /* If UNMAP without data -- block and wait for data. */ 10366 ptrlen = (struct ctl_ptr_len_flags *) 10367 &io->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 10368 if ((io->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0 || 10369 ptrlen->ptr == NULL) 10370 return (CTL_ACTION_BLOCK); 10371 10372 /* UNMAP with data -- check for collision. */ 10373 buf = (struct scsi_unmap_desc *)ptrlen->ptr; 10374 end = buf + ptrlen->len / sizeof(*buf); 10375 for (range = buf; range < end; range++) { 10376 lba = scsi_8btou64(range->lba); 10377 len = scsi_4btoul(range->length); 10378 if ((lba < lba2 + len2) && (lba + len > lba2)) 10379 return (CTL_ACTION_BLOCK); 10380 } 10381 return (CTL_ACTION_PASS); 10382} 10383 10384static ctl_action 10385ctl_extent_check(union ctl_io *io1, union ctl_io *io2, bool seq) 10386{ 10387 uint64_t lba1, lba2; 10388 uint64_t len1, len2; 10389 int retval; 10390 10391 if (ctl_get_lba_len(io2, &lba2, &len2) != 0) 10392 return (CTL_ACTION_ERROR); 10393 10394 retval = ctl_extent_check_unmap(io1, lba2, len2); 10395 if (retval != CTL_ACTION_ERROR) 10396 return (retval); 10397 10398 if (ctl_get_lba_len(io1, &lba1, &len1) != 0) 10399 return (CTL_ACTION_ERROR); 10400 10401 return (ctl_extent_check_lba(lba1, len1, lba2, len2, seq)); 10402} 10403 10404static ctl_action 10405ctl_extent_check_seq(union ctl_io *io1, union ctl_io *io2) 10406{ 10407 uint64_t lba1, lba2; 10408 uint64_t len1, len2; 10409 10410 if (ctl_get_lba_len(io1, &lba1, &len1) != 0) 10411 return (CTL_ACTION_ERROR); 10412 if (ctl_get_lba_len(io2, &lba2, &len2) != 0) 10413 return (CTL_ACTION_ERROR); 10414 10415 if (lba1 + len1 == lba2) 10416 return (CTL_ACTION_BLOCK); 10417 return (CTL_ACTION_PASS); 10418} 10419 10420static ctl_action 10421ctl_check_for_blockage(struct ctl_lun *lun, union ctl_io *pending_io, 10422 union ctl_io *ooa_io) 10423{ 10424 const struct ctl_cmd_entry *pending_entry, *ooa_entry; 10425 ctl_serialize_action *serialize_row; 10426 10427 /* 10428 * The initiator attempted multiple untagged commands at the same 10429 * time. Can't do that. 10430 */ 10431 if ((pending_io->scsiio.tag_type == CTL_TAG_UNTAGGED) 10432 && (ooa_io->scsiio.tag_type == CTL_TAG_UNTAGGED) 10433 && ((pending_io->io_hdr.nexus.targ_port == 10434 ooa_io->io_hdr.nexus.targ_port) 10435 && (pending_io->io_hdr.nexus.initid == 10436 ooa_io->io_hdr.nexus.initid)) 10437 && ((ooa_io->io_hdr.flags & (CTL_FLAG_ABORT | 10438 CTL_FLAG_STATUS_SENT)) == 0)) 10439 return (CTL_ACTION_OVERLAP); 10440 10441 /* 10442 * The initiator attempted to send multiple tagged commands with 10443 * the same ID. (It's fine if different initiators have the same 10444 * tag ID.) 10445 * 10446 * Even if all of those conditions are true, we don't kill the I/O 10447 * if the command ahead of us has been aborted. We won't end up 10448 * sending it to the FETD, and it's perfectly legal to resend a 10449 * command with the same tag number as long as the previous 10450 * instance of this tag number has been aborted somehow. 10451 */ 10452 if ((pending_io->scsiio.tag_type != CTL_TAG_UNTAGGED) 10453 && (ooa_io->scsiio.tag_type != CTL_TAG_UNTAGGED) 10454 && (pending_io->scsiio.tag_num == ooa_io->scsiio.tag_num) 10455 && ((pending_io->io_hdr.nexus.targ_port == 10456 ooa_io->io_hdr.nexus.targ_port) 10457 && (pending_io->io_hdr.nexus.initid == 10458 ooa_io->io_hdr.nexus.initid)) 10459 && ((ooa_io->io_hdr.flags & (CTL_FLAG_ABORT | 10460 CTL_FLAG_STATUS_SENT)) == 0)) 10461 return (CTL_ACTION_OVERLAP_TAG); 10462 10463 /* 10464 * If we get a head of queue tag, SAM-3 says that we should 10465 * immediately execute it. 10466 * 10467 * What happens if this command would normally block for some other 10468 * reason? e.g. a request sense with a head of queue tag 10469 * immediately after a write. Normally that would block, but this 10470 * will result in its getting executed immediately... 10471 * 10472 * We currently return "pass" instead of "skip", so we'll end up 10473 * going through the rest of the queue to check for overlapped tags. 10474 * 10475 * XXX KDM check for other types of blockage first?? 10476 */ 10477 if (pending_io->scsiio.tag_type == CTL_TAG_HEAD_OF_QUEUE) 10478 return (CTL_ACTION_PASS); 10479 10480 /* 10481 * Ordered tags have to block until all items ahead of them 10482 * have completed. If we get called with an ordered tag, we always 10483 * block, if something else is ahead of us in the queue. 10484 */ 10485 if (pending_io->scsiio.tag_type == CTL_TAG_ORDERED) 10486 return (CTL_ACTION_BLOCK); 10487 10488 /* 10489 * Simple tags get blocked until all head of queue and ordered tags 10490 * ahead of them have completed. I'm lumping untagged commands in 10491 * with simple tags here. XXX KDM is that the right thing to do? 10492 */ 10493 if (((pending_io->scsiio.tag_type == CTL_TAG_UNTAGGED) 10494 || (pending_io->scsiio.tag_type == CTL_TAG_SIMPLE)) 10495 && ((ooa_io->scsiio.tag_type == CTL_TAG_HEAD_OF_QUEUE) 10496 || (ooa_io->scsiio.tag_type == CTL_TAG_ORDERED))) 10497 return (CTL_ACTION_BLOCK); 10498 10499 pending_entry = ctl_get_cmd_entry(&pending_io->scsiio, NULL); 10500 ooa_entry = ctl_get_cmd_entry(&ooa_io->scsiio, NULL); 10501 10502 serialize_row = ctl_serialize_table[ooa_entry->seridx]; 10503 10504 switch (serialize_row[pending_entry->seridx]) { 10505 case CTL_SER_BLOCK: 10506 return (CTL_ACTION_BLOCK); 10507 case CTL_SER_EXTENT: 10508 return (ctl_extent_check(ooa_io, pending_io, 10509 (lun->be_lun && lun->be_lun->serseq == CTL_LUN_SERSEQ_ON))); 10510 case CTL_SER_EXTENTOPT: 10511 if ((lun->mode_pages.control_page[CTL_PAGE_CURRENT].queue_flags 10512 & SCP_QUEUE_ALG_MASK) != SCP_QUEUE_ALG_UNRESTRICTED) 10513 return (ctl_extent_check(ooa_io, pending_io, 10514 (lun->be_lun && 10515 lun->be_lun->serseq == CTL_LUN_SERSEQ_ON))); 10516 return (CTL_ACTION_PASS); 10517 case CTL_SER_EXTENTSEQ: 10518 if (lun->be_lun && lun->be_lun->serseq != CTL_LUN_SERSEQ_OFF) 10519 return (ctl_extent_check_seq(ooa_io, pending_io)); 10520 return (CTL_ACTION_PASS); 10521 case CTL_SER_PASS: 10522 return (CTL_ACTION_PASS); 10523 case CTL_SER_BLOCKOPT: 10524 if ((lun->mode_pages.control_page[CTL_PAGE_CURRENT].queue_flags 10525 & SCP_QUEUE_ALG_MASK) != SCP_QUEUE_ALG_UNRESTRICTED) 10526 return (CTL_ACTION_BLOCK); 10527 return (CTL_ACTION_PASS); 10528 case CTL_SER_SKIP: 10529 return (CTL_ACTION_SKIP); 10530 default: 10531 panic("invalid serialization value %d", 10532 serialize_row[pending_entry->seridx]); 10533 } 10534 10535 return (CTL_ACTION_ERROR); 10536} 10537 10538/* 10539 * Check for blockage or overlaps against the OOA (Order Of Arrival) queue. 10540 * Assumptions: 10541 * - pending_io is generally either incoming, or on the blocked queue 10542 * - starting I/O is the I/O we want to start the check with. 10543 */ 10544static ctl_action 10545ctl_check_ooa(struct ctl_lun *lun, union ctl_io *pending_io, 10546 union ctl_io *starting_io) 10547{ 10548 union ctl_io *ooa_io; 10549 ctl_action action; 10550 10551 mtx_assert(&lun->lun_lock, MA_OWNED); 10552 10553 /* 10554 * Run back along the OOA queue, starting with the current 10555 * blocked I/O and going through every I/O before it on the 10556 * queue. If starting_io is NULL, we'll just end up returning 10557 * CTL_ACTION_PASS. 10558 */ 10559 for (ooa_io = starting_io; ooa_io != NULL; 10560 ooa_io = (union ctl_io *)TAILQ_PREV(&ooa_io->io_hdr, ctl_ooaq, 10561 ooa_links)){ 10562 10563 /* 10564 * This routine just checks to see whether 10565 * cur_blocked is blocked by ooa_io, which is ahead 10566 * of it in the queue. It doesn't queue/dequeue 10567 * cur_blocked. 10568 */ 10569 action = ctl_check_for_blockage(lun, pending_io, ooa_io); 10570 switch (action) { 10571 case CTL_ACTION_BLOCK: 10572 case CTL_ACTION_OVERLAP: 10573 case CTL_ACTION_OVERLAP_TAG: 10574 case CTL_ACTION_SKIP: 10575 case CTL_ACTION_ERROR: 10576 return (action); 10577 break; /* NOTREACHED */ 10578 case CTL_ACTION_PASS: 10579 break; 10580 default: 10581 panic("invalid action %d", action); 10582 break; /* NOTREACHED */ 10583 } 10584 } 10585 10586 return (CTL_ACTION_PASS); 10587} 10588 10589/* 10590 * Assumptions: 10591 * - An I/O has just completed, and has been removed from the per-LUN OOA 10592 * queue, so some items on the blocked queue may now be unblocked. 10593 */ 10594static int 10595ctl_check_blocked(struct ctl_lun *lun) 10596{ 10597 union ctl_io *cur_blocked, *next_blocked; 10598 10599 mtx_assert(&lun->lun_lock, MA_OWNED); 10600 10601 /* 10602 * Run forward from the head of the blocked queue, checking each 10603 * entry against the I/Os prior to it on the OOA queue to see if 10604 * there is still any blockage. 10605 * 10606 * We cannot use the TAILQ_FOREACH() macro, because it can't deal 10607 * with our removing a variable on it while it is traversing the 10608 * list. 10609 */ 10610 for (cur_blocked = (union ctl_io *)TAILQ_FIRST(&lun->blocked_queue); 10611 cur_blocked != NULL; cur_blocked = next_blocked) { 10612 union ctl_io *prev_ooa; 10613 ctl_action action; 10614 10615 next_blocked = (union ctl_io *)TAILQ_NEXT(&cur_blocked->io_hdr, 10616 blocked_links); 10617 10618 prev_ooa = (union ctl_io *)TAILQ_PREV(&cur_blocked->io_hdr, 10619 ctl_ooaq, ooa_links); 10620 10621 /* 10622 * If cur_blocked happens to be the first item in the OOA 10623 * queue now, prev_ooa will be NULL, and the action 10624 * returned will just be CTL_ACTION_PASS. 10625 */ 10626 action = ctl_check_ooa(lun, cur_blocked, prev_ooa); 10627 10628 switch (action) { 10629 case CTL_ACTION_BLOCK: 10630 /* Nothing to do here, still blocked */ 10631 break; 10632 case CTL_ACTION_OVERLAP: 10633 case CTL_ACTION_OVERLAP_TAG: 10634 /* 10635 * This shouldn't happen! In theory we've already 10636 * checked this command for overlap... 10637 */ 10638 break; 10639 case CTL_ACTION_PASS: 10640 case CTL_ACTION_SKIP: { 10641 const struct ctl_cmd_entry *entry; 10642 int isc_retval; 10643 10644 /* 10645 * The skip case shouldn't happen, this transaction 10646 * should have never made it onto the blocked queue. 10647 */ 10648 /* 10649 * This I/O is no longer blocked, we can remove it 10650 * from the blocked queue. Since this is a TAILQ 10651 * (doubly linked list), we can do O(1) removals 10652 * from any place on the list. 10653 */ 10654 TAILQ_REMOVE(&lun->blocked_queue, &cur_blocked->io_hdr, 10655 blocked_links); 10656 cur_blocked->io_hdr.flags &= ~CTL_FLAG_BLOCKED; 10657 10658 if (cur_blocked->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC){ 10659 /* 10660 * Need to send IO back to original side to 10661 * run 10662 */ 10663 union ctl_ha_msg msg_info; 10664 10665 msg_info.hdr.original_sc = 10666 cur_blocked->io_hdr.original_sc; 10667 msg_info.hdr.serializing_sc = cur_blocked; 10668 msg_info.hdr.msg_type = CTL_MSG_R2R; 10669 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 10670 &msg_info, sizeof(msg_info), 0)) > 10671 CTL_HA_STATUS_SUCCESS) { 10672 printf("CTL:Check Blocked error from " 10673 "ctl_ha_msg_send %d\n", 10674 isc_retval); 10675 } 10676 break; 10677 } 10678 entry = ctl_get_cmd_entry(&cur_blocked->scsiio, NULL); 10679 10680 /* 10681 * Check this I/O for LUN state changes that may 10682 * have happened while this command was blocked. 10683 * The LUN state may have been changed by a command 10684 * ahead of us in the queue, so we need to re-check 10685 * for any states that can be caused by SCSI 10686 * commands. 10687 */ 10688 if (ctl_scsiio_lun_check(lun, entry, 10689 &cur_blocked->scsiio) == 0) { 10690 cur_blocked->io_hdr.flags |= 10691 CTL_FLAG_IS_WAS_ON_RTR; 10692 ctl_enqueue_rtr(cur_blocked); 10693 } else 10694 ctl_done(cur_blocked); 10695 break; 10696 } 10697 default: 10698 /* 10699 * This probably shouldn't happen -- we shouldn't 10700 * get CTL_ACTION_ERROR, or anything else. 10701 */ 10702 break; 10703 } 10704 } 10705 10706 return (CTL_RETVAL_COMPLETE); 10707} 10708 10709/* 10710 * This routine (with one exception) checks LUN flags that can be set by 10711 * commands ahead of us in the OOA queue. These flags have to be checked 10712 * when a command initially comes in, and when we pull a command off the 10713 * blocked queue and are preparing to execute it. The reason we have to 10714 * check these flags for commands on the blocked queue is that the LUN 10715 * state may have been changed by a command ahead of us while we're on the 10716 * blocked queue. 10717 * 10718 * Ordering is somewhat important with these checks, so please pay 10719 * careful attention to the placement of any new checks. 10720 */ 10721static int 10722ctl_scsiio_lun_check(struct ctl_lun *lun, 10723 const struct ctl_cmd_entry *entry, struct ctl_scsiio *ctsio) 10724{ 10725 struct ctl_softc *softc = lun->ctl_softc; 10726 int retval; 10727 uint32_t residx; 10728 10729 retval = 0; 10730 10731 mtx_assert(&lun->lun_lock, MA_OWNED); 10732 10733 /* 10734 * If this shelf is a secondary shelf controller, we have to reject 10735 * any media access commands. 10736 */ 10737 if ((softc->flags & CTL_FLAG_ACTIVE_SHELF) == 0 && 10738 (entry->flags & CTL_CMD_FLAG_OK_ON_SECONDARY) == 0) { 10739 ctl_set_lun_standby(ctsio); 10740 retval = 1; 10741 goto bailout; 10742 } 10743 10744 if (entry->pattern & CTL_LUN_PAT_WRITE) { 10745 if (lun->be_lun && 10746 lun->be_lun->flags & CTL_LUN_FLAG_READONLY) { 10747 ctl_set_sense(ctsio, /*current_error*/ 1, 10748 /*sense_key*/ SSD_KEY_DATA_PROTECT, 10749 /*asc*/ 0x27, /*ascq*/ 0x01, SSD_ELEM_NONE); 10750 retval = 1; 10751 goto bailout; 10752 } 10753 if ((lun->mode_pages.control_page[CTL_PAGE_CURRENT] 10754 .eca_and_aen & SCP_SWP) != 0) { 10755 ctl_set_sense(ctsio, /*current_error*/ 1, 10756 /*sense_key*/ SSD_KEY_DATA_PROTECT, 10757 /*asc*/ 0x27, /*ascq*/ 0x02, SSD_ELEM_NONE); 10758 retval = 1; 10759 goto bailout; 10760 } 10761 } 10762 10763 /* 10764 * Check for a reservation conflict. If this command isn't allowed 10765 * even on reserved LUNs, and if this initiator isn't the one who 10766 * reserved us, reject the command with a reservation conflict. 10767 */ 10768 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 10769 if ((lun->flags & CTL_LUN_RESERVED) 10770 && ((entry->flags & CTL_CMD_FLAG_ALLOW_ON_RESV) == 0)) { 10771 if (lun->res_idx != residx) { 10772 ctl_set_reservation_conflict(ctsio); 10773 retval = 1; 10774 goto bailout; 10775 } 10776 } 10777 10778 if ((lun->flags & CTL_LUN_PR_RESERVED) == 0 || 10779 (entry->flags & CTL_CMD_FLAG_ALLOW_ON_PR_RESV)) { 10780 /* No reservation or command is allowed. */; 10781 } else if ((entry->flags & CTL_CMD_FLAG_ALLOW_ON_PR_WRESV) && 10782 (lun->res_type == SPR_TYPE_WR_EX || 10783 lun->res_type == SPR_TYPE_WR_EX_RO || 10784 lun->res_type == SPR_TYPE_WR_EX_AR)) { 10785 /* The command is allowed for Write Exclusive resv. */; 10786 } else { 10787 /* 10788 * if we aren't registered or it's a res holder type 10789 * reservation and this isn't the res holder then set a 10790 * conflict. 10791 */ 10792 if (ctl_get_prkey(lun, residx) == 0 10793 || (residx != lun->pr_res_idx && lun->res_type < 4)) { 10794 ctl_set_reservation_conflict(ctsio); 10795 retval = 1; 10796 goto bailout; 10797 } 10798 10799 } 10800 10801 if ((lun->flags & CTL_LUN_OFFLINE) 10802 && ((entry->flags & CTL_CMD_FLAG_OK_ON_OFFLINE) == 0)) { 10803 ctl_set_lun_not_ready(ctsio); 10804 retval = 1; 10805 goto bailout; 10806 } 10807 10808 /* 10809 * If the LUN is stopped, see if this particular command is allowed 10810 * for a stopped lun. Otherwise, reject it with 0x04,0x02. 10811 */ 10812 if ((lun->flags & CTL_LUN_STOPPED) 10813 && ((entry->flags & CTL_CMD_FLAG_OK_ON_STOPPED) == 0)) { 10814 /* "Logical unit not ready, initializing cmd. required" */ 10815 ctl_set_lun_stopped(ctsio); 10816 retval = 1; 10817 goto bailout; 10818 } 10819 10820 if ((lun->flags & CTL_LUN_INOPERABLE) 10821 && ((entry->flags & CTL_CMD_FLAG_OK_ON_INOPERABLE) == 0)) { 10822 /* "Medium format corrupted" */ 10823 ctl_set_medium_format_corrupted(ctsio); 10824 retval = 1; 10825 goto bailout; 10826 } 10827 10828bailout: 10829 return (retval); 10830 10831} 10832 10833static void 10834ctl_failover_io(union ctl_io *io, int have_lock) 10835{ 10836 ctl_set_busy(&io->scsiio); 10837 ctl_done(io); 10838} 10839 10840#ifdef notyet 10841static void 10842ctl_failover(void) 10843{ 10844 struct ctl_lun *lun; 10845 struct ctl_softc *softc; 10846 union ctl_io *next_io, *pending_io; 10847 union ctl_io *io; 10848 int lun_idx; 10849 10850 softc = control_softc; 10851 10852 mtx_lock(&softc->ctl_lock); 10853 /* 10854 * Remove any cmds from the other SC from the rtr queue. These 10855 * will obviously only be for LUNs for which we're the primary. 10856 * We can't send status or get/send data for these commands. 10857 * Since they haven't been executed yet, we can just remove them. 10858 * We'll either abort them or delete them below, depending on 10859 * which HA mode we're in. 10860 */ 10861#ifdef notyet 10862 mtx_lock(&softc->queue_lock); 10863 for (io = (union ctl_io *)STAILQ_FIRST(&softc->rtr_queue); 10864 io != NULL; io = next_io) { 10865 next_io = (union ctl_io *)STAILQ_NEXT(&io->io_hdr, links); 10866 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) 10867 STAILQ_REMOVE(&softc->rtr_queue, &io->io_hdr, 10868 ctl_io_hdr, links); 10869 } 10870 mtx_unlock(&softc->queue_lock); 10871#endif 10872 10873 for (lun_idx=0; lun_idx < softc->num_luns; lun_idx++) { 10874 lun = softc->ctl_luns[lun_idx]; 10875 if (lun==NULL) 10876 continue; 10877 10878 /* 10879 * Processor LUNs are primary on both sides. 10880 * XXX will this always be true? 10881 */ 10882 if (lun->be_lun->lun_type == T_PROCESSOR) 10883 continue; 10884 10885 if ((lun->flags & CTL_LUN_PRIMARY_SC) 10886 && (softc->ha_mode == CTL_HA_MODE_SER_ONLY)) { 10887 printf("FAILOVER: primary lun %d\n", lun_idx); 10888 /* 10889 * Remove all commands from the other SC. First from the 10890 * blocked queue then from the ooa queue. Once we have 10891 * removed them. Call ctl_check_blocked to see if there 10892 * is anything that can run. 10893 */ 10894 for (io = (union ctl_io *)TAILQ_FIRST( 10895 &lun->blocked_queue); io != NULL; io = next_io) { 10896 10897 next_io = (union ctl_io *)TAILQ_NEXT( 10898 &io->io_hdr, blocked_links); 10899 10900 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) { 10901 TAILQ_REMOVE(&lun->blocked_queue, 10902 &io->io_hdr,blocked_links); 10903 io->io_hdr.flags &= ~CTL_FLAG_BLOCKED; 10904 TAILQ_REMOVE(&lun->ooa_queue, 10905 &io->io_hdr, ooa_links); 10906 10907 ctl_free_io(io); 10908 } 10909 } 10910 10911 for (io = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); 10912 io != NULL; io = next_io) { 10913 10914 next_io = (union ctl_io *)TAILQ_NEXT( 10915 &io->io_hdr, ooa_links); 10916 10917 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) { 10918 10919 TAILQ_REMOVE(&lun->ooa_queue, 10920 &io->io_hdr, 10921 ooa_links); 10922 10923 ctl_free_io(io); 10924 } 10925 } 10926 ctl_check_blocked(lun); 10927 } else if ((lun->flags & CTL_LUN_PRIMARY_SC) 10928 && (softc->ha_mode == CTL_HA_MODE_XFER)) { 10929 10930 printf("FAILOVER: primary lun %d\n", lun_idx); 10931 /* 10932 * Abort all commands from the other SC. We can't 10933 * send status back for them now. These should get 10934 * cleaned up when they are completed or come out 10935 * for a datamove operation. 10936 */ 10937 for (io = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); 10938 io != NULL; io = next_io) { 10939 next_io = (union ctl_io *)TAILQ_NEXT( 10940 &io->io_hdr, ooa_links); 10941 10942 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) 10943 io->io_hdr.flags |= CTL_FLAG_ABORT; 10944 } 10945 } else if (((lun->flags & CTL_LUN_PRIMARY_SC) == 0) 10946 && (softc->ha_mode == CTL_HA_MODE_XFER)) { 10947 10948 printf("FAILOVER: secondary lun %d\n", lun_idx); 10949 10950 lun->flags |= CTL_LUN_PRIMARY_SC; 10951 10952 /* 10953 * We send all I/O that was sent to this controller 10954 * and redirected to the other side back with 10955 * busy status, and have the initiator retry it. 10956 * Figuring out how much data has been transferred, 10957 * etc. and picking up where we left off would be 10958 * very tricky. 10959 * 10960 * XXX KDM need to remove I/O from the blocked 10961 * queue as well! 10962 */ 10963 for (pending_io = (union ctl_io *)TAILQ_FIRST( 10964 &lun->ooa_queue); pending_io != NULL; 10965 pending_io = next_io) { 10966 10967 next_io = (union ctl_io *)TAILQ_NEXT( 10968 &pending_io->io_hdr, ooa_links); 10969 10970 pending_io->io_hdr.flags &= 10971 ~CTL_FLAG_SENT_2OTHER_SC; 10972 10973 if (pending_io->io_hdr.flags & 10974 CTL_FLAG_IO_ACTIVE) { 10975 pending_io->io_hdr.flags |= 10976 CTL_FLAG_FAILOVER; 10977 } else { 10978 ctl_set_busy(&pending_io->scsiio); 10979 ctl_done(pending_io); 10980 } 10981 } 10982 10983 ctl_est_ua_all(lun, -1, CTL_UA_ASYM_ACC_CHANGE); 10984 } else if (((lun->flags & CTL_LUN_PRIMARY_SC) == 0) 10985 && (softc->ha_mode == CTL_HA_MODE_SER_ONLY)) { 10986 printf("FAILOVER: secondary lun %d\n", lun_idx); 10987 /* 10988 * if the first io on the OOA is not on the RtR queue 10989 * add it. 10990 */ 10991 lun->flags |= CTL_LUN_PRIMARY_SC; 10992 10993 pending_io = (union ctl_io *)TAILQ_FIRST( 10994 &lun->ooa_queue); 10995 if (pending_io==NULL) { 10996 printf("Nothing on OOA queue\n"); 10997 continue; 10998 } 10999 11000 pending_io->io_hdr.flags &= ~CTL_FLAG_SENT_2OTHER_SC; 11001 if ((pending_io->io_hdr.flags & 11002 CTL_FLAG_IS_WAS_ON_RTR) == 0) { 11003 pending_io->io_hdr.flags |= 11004 CTL_FLAG_IS_WAS_ON_RTR; 11005 ctl_enqueue_rtr(pending_io); 11006 } 11007#if 0 11008 else 11009 { 11010 printf("Tag 0x%04x is running\n", 11011 pending_io->scsiio.tag_num); 11012 } 11013#endif 11014 11015 next_io = (union ctl_io *)TAILQ_NEXT( 11016 &pending_io->io_hdr, ooa_links); 11017 for (pending_io=next_io; pending_io != NULL; 11018 pending_io = next_io) { 11019 pending_io->io_hdr.flags &= 11020 ~CTL_FLAG_SENT_2OTHER_SC; 11021 next_io = (union ctl_io *)TAILQ_NEXT( 11022 &pending_io->io_hdr, ooa_links); 11023 if (pending_io->io_hdr.flags & 11024 CTL_FLAG_IS_WAS_ON_RTR) { 11025#if 0 11026 printf("Tag 0x%04x is running\n", 11027 pending_io->scsiio.tag_num); 11028#endif 11029 continue; 11030 } 11031 11032 switch (ctl_check_ooa(lun, pending_io, 11033 (union ctl_io *)TAILQ_PREV( 11034 &pending_io->io_hdr, ctl_ooaq, 11035 ooa_links))) { 11036 11037 case CTL_ACTION_BLOCK: 11038 TAILQ_INSERT_TAIL(&lun->blocked_queue, 11039 &pending_io->io_hdr, 11040 blocked_links); 11041 pending_io->io_hdr.flags |= 11042 CTL_FLAG_BLOCKED; 11043 break; 11044 case CTL_ACTION_PASS: 11045 case CTL_ACTION_SKIP: 11046 pending_io->io_hdr.flags |= 11047 CTL_FLAG_IS_WAS_ON_RTR; 11048 ctl_enqueue_rtr(pending_io); 11049 break; 11050 case CTL_ACTION_OVERLAP: 11051 ctl_set_overlapped_cmd( 11052 (struct ctl_scsiio *)pending_io); 11053 ctl_done(pending_io); 11054 break; 11055 case CTL_ACTION_OVERLAP_TAG: 11056 ctl_set_overlapped_tag( 11057 (struct ctl_scsiio *)pending_io, 11058 pending_io->scsiio.tag_num & 0xff); 11059 ctl_done(pending_io); 11060 break; 11061 case CTL_ACTION_ERROR: 11062 default: 11063 ctl_set_internal_failure( 11064 (struct ctl_scsiio *)pending_io, 11065 0, // sks_valid 11066 0); //retry count 11067 ctl_done(pending_io); 11068 break; 11069 } 11070 } 11071 11072 ctl_est_ua_all(lun, -1, CTL_UA_ASYM_ACC_CHANGE); 11073 } else { 11074 panic("Unhandled HA mode failover, LUN flags = %#x, " 11075 "ha_mode = #%x", lun->flags, softc->ha_mode); 11076 } 11077 } 11078 ctl_pause_rtr = 0; 11079 mtx_unlock(&softc->ctl_lock); 11080} 11081#endif 11082 11083static int 11084ctl_scsiio_precheck(struct ctl_softc *softc, struct ctl_scsiio *ctsio) 11085{ 11086 struct ctl_lun *lun; 11087 const struct ctl_cmd_entry *entry; 11088 uint32_t initidx, targ_lun; 11089 int retval; 11090 11091 retval = 0; 11092 11093 lun = NULL; 11094 11095 targ_lun = ctsio->io_hdr.nexus.targ_mapped_lun; 11096 if ((targ_lun < CTL_MAX_LUNS) 11097 && ((lun = softc->ctl_luns[targ_lun]) != NULL)) { 11098 /* 11099 * If the LUN is invalid, pretend that it doesn't exist. 11100 * It will go away as soon as all pending I/O has been 11101 * completed. 11102 */ 11103 mtx_lock(&lun->lun_lock); 11104 if (lun->flags & CTL_LUN_DISABLED) { 11105 mtx_unlock(&lun->lun_lock); 11106 lun = NULL; 11107 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr = NULL; 11108 ctsio->io_hdr.ctl_private[CTL_PRIV_BACKEND_LUN].ptr = NULL; 11109 } else { 11110 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr = lun; 11111 ctsio->io_hdr.ctl_private[CTL_PRIV_BACKEND_LUN].ptr = 11112 lun->be_lun; 11113 if (lun->be_lun->lun_type == T_PROCESSOR) { 11114 ctsio->io_hdr.flags |= CTL_FLAG_CONTROL_DEV; 11115 } 11116 11117 /* 11118 * Every I/O goes into the OOA queue for a 11119 * particular LUN, and stays there until completion. 11120 */ 11121#ifdef CTL_TIME_IO 11122 if (TAILQ_EMPTY(&lun->ooa_queue)) { 11123 lun->idle_time += getsbinuptime() - 11124 lun->last_busy; 11125 } 11126#endif 11127 TAILQ_INSERT_TAIL(&lun->ooa_queue, &ctsio->io_hdr, 11128 ooa_links); 11129 } 11130 } else { 11131 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr = NULL; 11132 ctsio->io_hdr.ctl_private[CTL_PRIV_BACKEND_LUN].ptr = NULL; 11133 } 11134 11135 /* Get command entry and return error if it is unsuppotyed. */ 11136 entry = ctl_validate_command(ctsio); 11137 if (entry == NULL) { 11138 if (lun) 11139 mtx_unlock(&lun->lun_lock); 11140 return (retval); 11141 } 11142 11143 ctsio->io_hdr.flags &= ~CTL_FLAG_DATA_MASK; 11144 ctsio->io_hdr.flags |= entry->flags & CTL_FLAG_DATA_MASK; 11145 11146 /* 11147 * Check to see whether we can send this command to LUNs that don't 11148 * exist. This should pretty much only be the case for inquiry 11149 * and request sense. Further checks, below, really require having 11150 * a LUN, so we can't really check the command anymore. Just put 11151 * it on the rtr queue. 11152 */ 11153 if (lun == NULL) { 11154 if (entry->flags & CTL_CMD_FLAG_OK_ON_ALL_LUNS) { 11155 ctsio->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 11156 ctl_enqueue_rtr((union ctl_io *)ctsio); 11157 return (retval); 11158 } 11159 11160 ctl_set_unsupported_lun(ctsio); 11161 ctl_done((union ctl_io *)ctsio); 11162 CTL_DEBUG_PRINT(("ctl_scsiio_precheck: bailing out due to invalid LUN\n")); 11163 return (retval); 11164 } else { 11165 /* 11166 * Make sure we support this particular command on this LUN. 11167 * e.g., we don't support writes to the control LUN. 11168 */ 11169 if (!ctl_cmd_applicable(lun->be_lun->lun_type, entry)) { 11170 mtx_unlock(&lun->lun_lock); 11171 ctl_set_invalid_opcode(ctsio); 11172 ctl_done((union ctl_io *)ctsio); 11173 return (retval); 11174 } 11175 } 11176 11177 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 11178 11179#ifdef CTL_WITH_CA 11180 /* 11181 * If we've got a request sense, it'll clear the contingent 11182 * allegiance condition. Otherwise, if we have a CA condition for 11183 * this initiator, clear it, because it sent down a command other 11184 * than request sense. 11185 */ 11186 if ((ctsio->cdb[0] != REQUEST_SENSE) 11187 && (ctl_is_set(lun->have_ca, initidx))) 11188 ctl_clear_mask(lun->have_ca, initidx); 11189#endif 11190 11191 /* 11192 * If the command has this flag set, it handles its own unit 11193 * attention reporting, we shouldn't do anything. Otherwise we 11194 * check for any pending unit attentions, and send them back to the 11195 * initiator. We only do this when a command initially comes in, 11196 * not when we pull it off the blocked queue. 11197 * 11198 * According to SAM-3, section 5.3.2, the order that things get 11199 * presented back to the host is basically unit attentions caused 11200 * by some sort of reset event, busy status, reservation conflicts 11201 * or task set full, and finally any other status. 11202 * 11203 * One issue here is that some of the unit attentions we report 11204 * don't fall into the "reset" category (e.g. "reported luns data 11205 * has changed"). So reporting it here, before the reservation 11206 * check, may be technically wrong. I guess the only thing to do 11207 * would be to check for and report the reset events here, and then 11208 * check for the other unit attention types after we check for a 11209 * reservation conflict. 11210 * 11211 * XXX KDM need to fix this 11212 */ 11213 if ((entry->flags & CTL_CMD_FLAG_NO_SENSE) == 0) { 11214 ctl_ua_type ua_type; 11215 scsi_sense_data_type sense_format; 11216 11217 if (lun->flags & CTL_LUN_SENSE_DESC) 11218 sense_format = SSD_TYPE_DESC; 11219 else 11220 sense_format = SSD_TYPE_FIXED; 11221 11222 ua_type = ctl_build_ua(lun, initidx, &ctsio->sense_data, 11223 sense_format); 11224 if (ua_type != CTL_UA_NONE) { 11225 mtx_unlock(&lun->lun_lock); 11226 ctsio->scsi_status = SCSI_STATUS_CHECK_COND; 11227 ctsio->io_hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 11228 ctsio->sense_len = SSD_FULL_SIZE; 11229 ctl_done((union ctl_io *)ctsio); 11230 return (retval); 11231 } 11232 } 11233 11234 11235 if (ctl_scsiio_lun_check(lun, entry, ctsio) != 0) { 11236 mtx_unlock(&lun->lun_lock); 11237 ctl_done((union ctl_io *)ctsio); 11238 return (retval); 11239 } 11240 11241 /* 11242 * XXX CHD this is where we want to send IO to other side if 11243 * this LUN is secondary on this SC. We will need to make a copy 11244 * of the IO and flag the IO on this side as SENT_2OTHER and the flag 11245 * the copy we send as FROM_OTHER. 11246 * We also need to stuff the address of the original IO so we can 11247 * find it easily. Something similar will need be done on the other 11248 * side so when we are done we can find the copy. 11249 */ 11250 if ((lun->flags & CTL_LUN_PRIMARY_SC) == 0) { 11251 union ctl_ha_msg msg_info; 11252 int isc_retval; 11253 11254 ctsio->io_hdr.flags |= CTL_FLAG_SENT_2OTHER_SC; 11255 11256 msg_info.hdr.msg_type = CTL_MSG_SERIALIZE; 11257 msg_info.hdr.original_sc = (union ctl_io *)ctsio; 11258#if 0 11259 printf("1. ctsio %p\n", ctsio); 11260#endif 11261 msg_info.hdr.serializing_sc = NULL; 11262 msg_info.hdr.nexus = ctsio->io_hdr.nexus; 11263 msg_info.scsi.tag_num = ctsio->tag_num; 11264 msg_info.scsi.tag_type = ctsio->tag_type; 11265 memcpy(msg_info.scsi.cdb, ctsio->cdb, CTL_MAX_CDBLEN); 11266 11267 ctsio->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 11268 11269 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 11270 (void *)&msg_info, sizeof(msg_info), 0)) > 11271 CTL_HA_STATUS_SUCCESS) { 11272 printf("CTL:precheck, ctl_ha_msg_send returned %d\n", 11273 isc_retval); 11274 printf("CTL:opcode is %x\n", ctsio->cdb[0]); 11275 } else { 11276#if 0 11277 printf("CTL:Precheck sent msg, opcode is %x\n",opcode); 11278#endif 11279 } 11280 11281 /* 11282 * XXX KDM this I/O is off the incoming queue, but hasn't 11283 * been inserted on any other queue. We may need to come 11284 * up with a holding queue while we wait for serialization 11285 * so that we have an idea of what we're waiting for from 11286 * the other side. 11287 */ 11288 mtx_unlock(&lun->lun_lock); 11289 return (retval); 11290 } 11291 11292 switch (ctl_check_ooa(lun, (union ctl_io *)ctsio, 11293 (union ctl_io *)TAILQ_PREV(&ctsio->io_hdr, 11294 ctl_ooaq, ooa_links))) { 11295 case CTL_ACTION_BLOCK: 11296 ctsio->io_hdr.flags |= CTL_FLAG_BLOCKED; 11297 TAILQ_INSERT_TAIL(&lun->blocked_queue, &ctsio->io_hdr, 11298 blocked_links); 11299 mtx_unlock(&lun->lun_lock); 11300 return (retval); 11301 case CTL_ACTION_PASS: 11302 case CTL_ACTION_SKIP: 11303 ctsio->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 11304 mtx_unlock(&lun->lun_lock); 11305 ctl_enqueue_rtr((union ctl_io *)ctsio); 11306 break; 11307 case CTL_ACTION_OVERLAP: 11308 mtx_unlock(&lun->lun_lock); 11309 ctl_set_overlapped_cmd(ctsio); 11310 ctl_done((union ctl_io *)ctsio); 11311 break; 11312 case CTL_ACTION_OVERLAP_TAG: 11313 mtx_unlock(&lun->lun_lock); 11314 ctl_set_overlapped_tag(ctsio, ctsio->tag_num & 0xff); 11315 ctl_done((union ctl_io *)ctsio); 11316 break; 11317 case CTL_ACTION_ERROR: 11318 default: 11319 mtx_unlock(&lun->lun_lock); 11320 ctl_set_internal_failure(ctsio, 11321 /*sks_valid*/ 0, 11322 /*retry_count*/ 0); 11323 ctl_done((union ctl_io *)ctsio); 11324 break; 11325 } 11326 return (retval); 11327} 11328 11329const struct ctl_cmd_entry * 11330ctl_get_cmd_entry(struct ctl_scsiio *ctsio, int *sa) 11331{ 11332 const struct ctl_cmd_entry *entry; 11333 int service_action; 11334 11335 entry = &ctl_cmd_table[ctsio->cdb[0]]; 11336 if (sa) 11337 *sa = ((entry->flags & CTL_CMD_FLAG_SA5) != 0); 11338 if (entry->flags & CTL_CMD_FLAG_SA5) { 11339 service_action = ctsio->cdb[1] & SERVICE_ACTION_MASK; 11340 entry = &((const struct ctl_cmd_entry *) 11341 entry->execute)[service_action]; 11342 } 11343 return (entry); 11344} 11345 11346const struct ctl_cmd_entry * 11347ctl_validate_command(struct ctl_scsiio *ctsio) 11348{ 11349 const struct ctl_cmd_entry *entry; 11350 int i, sa; 11351 uint8_t diff; 11352 11353 entry = ctl_get_cmd_entry(ctsio, &sa); 11354 if (entry->execute == NULL) { 11355 if (sa) 11356 ctl_set_invalid_field(ctsio, 11357 /*sks_valid*/ 1, 11358 /*command*/ 1, 11359 /*field*/ 1, 11360 /*bit_valid*/ 1, 11361 /*bit*/ 4); 11362 else 11363 ctl_set_invalid_opcode(ctsio); 11364 ctl_done((union ctl_io *)ctsio); 11365 return (NULL); 11366 } 11367 KASSERT(entry->length > 0, 11368 ("Not defined length for command 0x%02x/0x%02x", 11369 ctsio->cdb[0], ctsio->cdb[1])); 11370 for (i = 1; i < entry->length; i++) { 11371 diff = ctsio->cdb[i] & ~entry->usage[i - 1]; 11372 if (diff == 0) 11373 continue; 11374 ctl_set_invalid_field(ctsio, 11375 /*sks_valid*/ 1, 11376 /*command*/ 1, 11377 /*field*/ i, 11378 /*bit_valid*/ 1, 11379 /*bit*/ fls(diff) - 1); 11380 ctl_done((union ctl_io *)ctsio); 11381 return (NULL); 11382 } 11383 return (entry); 11384} 11385 11386static int 11387ctl_cmd_applicable(uint8_t lun_type, const struct ctl_cmd_entry *entry) 11388{ 11389 11390 switch (lun_type) { 11391 case T_PROCESSOR: 11392 if (((entry->flags & CTL_CMD_FLAG_OK_ON_PROC) == 0) && 11393 ((entry->flags & CTL_CMD_FLAG_OK_ON_ALL_LUNS) == 0)) 11394 return (0); 11395 break; 11396 case T_DIRECT: 11397 if (((entry->flags & CTL_CMD_FLAG_OK_ON_SLUN) == 0) && 11398 ((entry->flags & CTL_CMD_FLAG_OK_ON_ALL_LUNS) == 0)) 11399 return (0); 11400 break; 11401 default: 11402 return (0); 11403 } 11404 return (1); 11405} 11406 11407static int 11408ctl_scsiio(struct ctl_scsiio *ctsio) 11409{ 11410 int retval; 11411 const struct ctl_cmd_entry *entry; 11412 11413 retval = CTL_RETVAL_COMPLETE; 11414 11415 CTL_DEBUG_PRINT(("ctl_scsiio cdb[0]=%02X\n", ctsio->cdb[0])); 11416 11417 entry = ctl_get_cmd_entry(ctsio, NULL); 11418 11419 /* 11420 * If this I/O has been aborted, just send it straight to 11421 * ctl_done() without executing it. 11422 */ 11423 if (ctsio->io_hdr.flags & CTL_FLAG_ABORT) { 11424 ctl_done((union ctl_io *)ctsio); 11425 goto bailout; 11426 } 11427 11428 /* 11429 * All the checks should have been handled by ctl_scsiio_precheck(). 11430 * We should be clear now to just execute the I/O. 11431 */ 11432 retval = entry->execute(ctsio); 11433 11434bailout: 11435 return (retval); 11436} 11437 11438/* 11439 * Since we only implement one target right now, a bus reset simply resets 11440 * our single target. 11441 */ 11442static int 11443ctl_bus_reset(struct ctl_softc *softc, union ctl_io *io) 11444{ 11445 return(ctl_target_reset(softc, io, CTL_UA_BUS_RESET)); 11446} 11447 11448static int 11449ctl_target_reset(struct ctl_softc *softc, union ctl_io *io, 11450 ctl_ua_type ua_type) 11451{ 11452 struct ctl_lun *lun; 11453 int retval; 11454 11455 if (!(io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)) { 11456 union ctl_ha_msg msg_info; 11457 11458 io->io_hdr.flags |= CTL_FLAG_SENT_2OTHER_SC; 11459 msg_info.hdr.nexus = io->io_hdr.nexus; 11460 if (ua_type==CTL_UA_TARG_RESET) 11461 msg_info.task.task_action = CTL_TASK_TARGET_RESET; 11462 else 11463 msg_info.task.task_action = CTL_TASK_BUS_RESET; 11464 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 11465 msg_info.hdr.original_sc = NULL; 11466 msg_info.hdr.serializing_sc = NULL; 11467 if (CTL_HA_STATUS_SUCCESS != ctl_ha_msg_send(CTL_HA_CHAN_CTL, 11468 (void *)&msg_info, sizeof(msg_info), 0)) { 11469 } 11470 } 11471 retval = 0; 11472 11473 mtx_lock(&softc->ctl_lock); 11474 STAILQ_FOREACH(lun, &softc->lun_list, links) 11475 retval += ctl_lun_reset(lun, io, ua_type); 11476 mtx_unlock(&softc->ctl_lock); 11477 11478 return (retval); 11479} 11480 11481/* 11482 * The LUN should always be set. The I/O is optional, and is used to 11483 * distinguish between I/Os sent by this initiator, and by other 11484 * initiators. We set unit attention for initiators other than this one. 11485 * SAM-3 is vague on this point. It does say that a unit attention should 11486 * be established for other initiators when a LUN is reset (see section 11487 * 5.7.3), but it doesn't specifically say that the unit attention should 11488 * be established for this particular initiator when a LUN is reset. Here 11489 * is the relevant text, from SAM-3 rev 8: 11490 * 11491 * 5.7.2 When a SCSI initiator port aborts its own tasks 11492 * 11493 * When a SCSI initiator port causes its own task(s) to be aborted, no 11494 * notification that the task(s) have been aborted shall be returned to 11495 * the SCSI initiator port other than the completion response for the 11496 * command or task management function action that caused the task(s) to 11497 * be aborted and notification(s) associated with related effects of the 11498 * action (e.g., a reset unit attention condition). 11499 * 11500 * XXX KDM for now, we're setting unit attention for all initiators. 11501 */ 11502static int 11503ctl_lun_reset(struct ctl_lun *lun, union ctl_io *io, ctl_ua_type ua_type) 11504{ 11505 union ctl_io *xio; 11506#if 0 11507 uint32_t initidx; 11508#endif 11509#ifdef CTL_WITH_CA 11510 int i; 11511#endif 11512 11513 mtx_lock(&lun->lun_lock); 11514 /* 11515 * Run through the OOA queue and abort each I/O. 11516 */ 11517 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 11518 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 11519 xio->io_hdr.flags |= CTL_FLAG_ABORT | CTL_FLAG_ABORT_STATUS; 11520 } 11521 11522 /* 11523 * This version sets unit attention for every 11524 */ 11525#if 0 11526 initidx = ctl_get_initindex(&io->io_hdr.nexus); 11527 ctl_est_ua_all(lun, initidx, ua_type); 11528#else 11529 ctl_est_ua_all(lun, -1, ua_type); 11530#endif 11531 11532 /* 11533 * A reset (any kind, really) clears reservations established with 11534 * RESERVE/RELEASE. It does not clear reservations established 11535 * with PERSISTENT RESERVE OUT, but we don't support that at the 11536 * moment anyway. See SPC-2, section 5.6. SPC-3 doesn't address 11537 * reservations made with the RESERVE/RELEASE commands, because 11538 * those commands are obsolete in SPC-3. 11539 */ 11540 lun->flags &= ~CTL_LUN_RESERVED; 11541 11542#ifdef CTL_WITH_CA 11543 for (i = 0; i < CTL_MAX_INITIATORS; i++) 11544 ctl_clear_mask(lun->have_ca, i); 11545#endif 11546 mtx_unlock(&lun->lun_lock); 11547 11548 return (0); 11549} 11550 11551static void 11552ctl_abort_tasks_lun(struct ctl_lun *lun, uint32_t targ_port, uint32_t init_id, 11553 int other_sc) 11554{ 11555 union ctl_io *xio; 11556 11557 mtx_assert(&lun->lun_lock, MA_OWNED); 11558 11559 /* 11560 * Run through the OOA queue and attempt to find the given I/O. 11561 * The target port, initiator ID, tag type and tag number have to 11562 * match the values that we got from the initiator. If we have an 11563 * untagged command to abort, simply abort the first untagged command 11564 * we come to. We only allow one untagged command at a time of course. 11565 */ 11566 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 11567 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 11568 11569 if ((targ_port == UINT32_MAX || 11570 targ_port == xio->io_hdr.nexus.targ_port) && 11571 (init_id == UINT32_MAX || 11572 init_id == xio->io_hdr.nexus.initid)) { 11573 if (targ_port != xio->io_hdr.nexus.targ_port || 11574 init_id != xio->io_hdr.nexus.initid) 11575 xio->io_hdr.flags |= CTL_FLAG_ABORT_STATUS; 11576 xio->io_hdr.flags |= CTL_FLAG_ABORT; 11577 if (!other_sc && !(lun->flags & CTL_LUN_PRIMARY_SC)) { 11578 union ctl_ha_msg msg_info; 11579 11580 msg_info.hdr.nexus = xio->io_hdr.nexus; 11581 msg_info.task.task_action = CTL_TASK_ABORT_TASK; 11582 msg_info.task.tag_num = xio->scsiio.tag_num; 11583 msg_info.task.tag_type = xio->scsiio.tag_type; 11584 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 11585 msg_info.hdr.original_sc = NULL; 11586 msg_info.hdr.serializing_sc = NULL; 11587 ctl_ha_msg_send(CTL_HA_CHAN_CTL, 11588 (void *)&msg_info, sizeof(msg_info), 0); 11589 } 11590 } 11591 } 11592} 11593 11594static int 11595ctl_abort_task_set(union ctl_io *io) 11596{ 11597 struct ctl_softc *softc = control_softc; 11598 struct ctl_lun *lun; 11599 uint32_t targ_lun; 11600 11601 /* 11602 * Look up the LUN. 11603 */ 11604 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 11605 mtx_lock(&softc->ctl_lock); 11606 if ((targ_lun < CTL_MAX_LUNS) && (softc->ctl_luns[targ_lun] != NULL)) 11607 lun = softc->ctl_luns[targ_lun]; 11608 else { 11609 mtx_unlock(&softc->ctl_lock); 11610 return (1); 11611 } 11612 11613 mtx_lock(&lun->lun_lock); 11614 mtx_unlock(&softc->ctl_lock); 11615 if (io->taskio.task_action == CTL_TASK_ABORT_TASK_SET) { 11616 ctl_abort_tasks_lun(lun, io->io_hdr.nexus.targ_port, 11617 io->io_hdr.nexus.initid, 11618 (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) != 0); 11619 } else { /* CTL_TASK_CLEAR_TASK_SET */ 11620 ctl_abort_tasks_lun(lun, UINT32_MAX, UINT32_MAX, 11621 (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) != 0); 11622 } 11623 mtx_unlock(&lun->lun_lock); 11624 return (0); 11625} 11626 11627static int 11628ctl_i_t_nexus_reset(union ctl_io *io) 11629{ 11630 struct ctl_softc *softc = control_softc; 11631 struct ctl_lun *lun; 11632 uint32_t initidx, residx; 11633 11634 initidx = ctl_get_initindex(&io->io_hdr.nexus); 11635 residx = ctl_get_resindex(&io->io_hdr.nexus); 11636 mtx_lock(&softc->ctl_lock); 11637 STAILQ_FOREACH(lun, &softc->lun_list, links) { 11638 mtx_lock(&lun->lun_lock); 11639 ctl_abort_tasks_lun(lun, io->io_hdr.nexus.targ_port, 11640 io->io_hdr.nexus.initid, 11641 (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) != 0); 11642#ifdef CTL_WITH_CA 11643 ctl_clear_mask(lun->have_ca, initidx); 11644#endif 11645 if ((lun->flags & CTL_LUN_RESERVED) && (lun->res_idx == residx)) 11646 lun->flags &= ~CTL_LUN_RESERVED; 11647 ctl_est_ua(lun, initidx, CTL_UA_I_T_NEXUS_LOSS); 11648 mtx_unlock(&lun->lun_lock); 11649 } 11650 mtx_unlock(&softc->ctl_lock); 11651 return (0); 11652} 11653 11654static int 11655ctl_abort_task(union ctl_io *io) 11656{ 11657 union ctl_io *xio; 11658 struct ctl_lun *lun; 11659 struct ctl_softc *softc; 11660#if 0 11661 struct sbuf sb; 11662 char printbuf[128]; 11663#endif 11664 int found; 11665 uint32_t targ_lun; 11666 11667 softc = control_softc; 11668 found = 0; 11669 11670 /* 11671 * Look up the LUN. 11672 */ 11673 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 11674 mtx_lock(&softc->ctl_lock); 11675 if ((targ_lun < CTL_MAX_LUNS) 11676 && (softc->ctl_luns[targ_lun] != NULL)) 11677 lun = softc->ctl_luns[targ_lun]; 11678 else { 11679 mtx_unlock(&softc->ctl_lock); 11680 return (1); 11681 } 11682 11683#if 0 11684 printf("ctl_abort_task: called for lun %lld, tag %d type %d\n", 11685 lun->lun, io->taskio.tag_num, io->taskio.tag_type); 11686#endif 11687 11688 mtx_lock(&lun->lun_lock); 11689 mtx_unlock(&softc->ctl_lock); 11690 /* 11691 * Run through the OOA queue and attempt to find the given I/O. 11692 * The target port, initiator ID, tag type and tag number have to 11693 * match the values that we got from the initiator. If we have an 11694 * untagged command to abort, simply abort the first untagged command 11695 * we come to. We only allow one untagged command at a time of course. 11696 */ 11697 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 11698 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 11699#if 0 11700 sbuf_new(&sb, printbuf, sizeof(printbuf), SBUF_FIXEDLEN); 11701 11702 sbuf_printf(&sb, "LUN %lld tag %d type %d%s%s%s%s: ", 11703 lun->lun, xio->scsiio.tag_num, 11704 xio->scsiio.tag_type, 11705 (xio->io_hdr.blocked_links.tqe_prev 11706 == NULL) ? "" : " BLOCKED", 11707 (xio->io_hdr.flags & 11708 CTL_FLAG_DMA_INPROG) ? " DMA" : "", 11709 (xio->io_hdr.flags & 11710 CTL_FLAG_ABORT) ? " ABORT" : "", 11711 (xio->io_hdr.flags & 11712 CTL_FLAG_IS_WAS_ON_RTR ? " RTR" : "")); 11713 ctl_scsi_command_string(&xio->scsiio, NULL, &sb); 11714 sbuf_finish(&sb); 11715 printf("%s\n", sbuf_data(&sb)); 11716#endif 11717 11718 if ((xio->io_hdr.nexus.targ_port != io->io_hdr.nexus.targ_port) 11719 || (xio->io_hdr.nexus.initid != io->io_hdr.nexus.initid) 11720 || (xio->io_hdr.flags & CTL_FLAG_ABORT)) 11721 continue; 11722 11723 /* 11724 * If the abort says that the task is untagged, the 11725 * task in the queue must be untagged. Otherwise, 11726 * we just check to see whether the tag numbers 11727 * match. This is because the QLogic firmware 11728 * doesn't pass back the tag type in an abort 11729 * request. 11730 */ 11731#if 0 11732 if (((xio->scsiio.tag_type == CTL_TAG_UNTAGGED) 11733 && (io->taskio.tag_type == CTL_TAG_UNTAGGED)) 11734 || (xio->scsiio.tag_num == io->taskio.tag_num)) 11735#endif 11736 /* 11737 * XXX KDM we've got problems with FC, because it 11738 * doesn't send down a tag type with aborts. So we 11739 * can only really go by the tag number... 11740 * This may cause problems with parallel SCSI. 11741 * Need to figure that out!! 11742 */ 11743 if (xio->scsiio.tag_num == io->taskio.tag_num) { 11744 xio->io_hdr.flags |= CTL_FLAG_ABORT; 11745 found = 1; 11746 if ((io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) == 0 && 11747 !(lun->flags & CTL_LUN_PRIMARY_SC)) { 11748 union ctl_ha_msg msg_info; 11749 11750 io->io_hdr.flags |= CTL_FLAG_SENT_2OTHER_SC; 11751 msg_info.hdr.nexus = io->io_hdr.nexus; 11752 msg_info.task.task_action = CTL_TASK_ABORT_TASK; 11753 msg_info.task.tag_num = io->taskio.tag_num; 11754 msg_info.task.tag_type = io->taskio.tag_type; 11755 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 11756 msg_info.hdr.original_sc = NULL; 11757 msg_info.hdr.serializing_sc = NULL; 11758#if 0 11759 printf("Sent Abort to other side\n"); 11760#endif 11761 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, 11762 (void *)&msg_info, sizeof(msg_info), 0) != 11763 CTL_HA_STATUS_SUCCESS) { 11764 } 11765 } 11766#if 0 11767 printf("ctl_abort_task: found I/O to abort\n"); 11768#endif 11769 } 11770 } 11771 mtx_unlock(&lun->lun_lock); 11772 11773 if (found == 0) { 11774 /* 11775 * This isn't really an error. It's entirely possible for 11776 * the abort and command completion to cross on the wire. 11777 * This is more of an informative/diagnostic error. 11778 */ 11779#if 0 11780 printf("ctl_abort_task: ABORT sent for nonexistent I/O: " 11781 "%u:%u:%u tag %d type %d\n", 11782 io->io_hdr.nexus.initid, 11783 io->io_hdr.nexus.targ_port, 11784 io->io_hdr.nexus.targ_lun, io->taskio.tag_num, 11785 io->taskio.tag_type); 11786#endif 11787 } 11788 return (0); 11789} 11790 11791static void 11792ctl_run_task(union ctl_io *io) 11793{ 11794 struct ctl_softc *softc = control_softc; 11795 int retval = 1; 11796 const char *task_desc; 11797 11798 CTL_DEBUG_PRINT(("ctl_run_task\n")); 11799 11800 KASSERT(io->io_hdr.io_type == CTL_IO_TASK, 11801 ("ctl_run_task: Unextected io_type %d\n", 11802 io->io_hdr.io_type)); 11803 11804 task_desc = ctl_scsi_task_string(&io->taskio); 11805 if (task_desc != NULL) { 11806#ifdef NEEDTOPORT 11807 csevent_log(CSC_CTL | CSC_SHELF_SW | 11808 CTL_TASK_REPORT, 11809 csevent_LogType_Trace, 11810 csevent_Severity_Information, 11811 csevent_AlertLevel_Green, 11812 csevent_FRU_Firmware, 11813 csevent_FRU_Unknown, 11814 "CTL: received task: %s",task_desc); 11815#endif 11816 } else { 11817#ifdef NEEDTOPORT 11818 csevent_log(CSC_CTL | CSC_SHELF_SW | 11819 CTL_TASK_REPORT, 11820 csevent_LogType_Trace, 11821 csevent_Severity_Information, 11822 csevent_AlertLevel_Green, 11823 csevent_FRU_Firmware, 11824 csevent_FRU_Unknown, 11825 "CTL: received unknown task " 11826 "type: %d (%#x)", 11827 io->taskio.task_action, 11828 io->taskio.task_action); 11829#endif 11830 } 11831 switch (io->taskio.task_action) { 11832 case CTL_TASK_ABORT_TASK: 11833 retval = ctl_abort_task(io); 11834 break; 11835 case CTL_TASK_ABORT_TASK_SET: 11836 case CTL_TASK_CLEAR_TASK_SET: 11837 retval = ctl_abort_task_set(io); 11838 break; 11839 case CTL_TASK_CLEAR_ACA: 11840 break; 11841 case CTL_TASK_I_T_NEXUS_RESET: 11842 retval = ctl_i_t_nexus_reset(io); 11843 break; 11844 case CTL_TASK_LUN_RESET: { 11845 struct ctl_lun *lun; 11846 uint32_t targ_lun; 11847 11848 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 11849 mtx_lock(&softc->ctl_lock); 11850 if ((targ_lun < CTL_MAX_LUNS) 11851 && (softc->ctl_luns[targ_lun] != NULL)) 11852 lun = softc->ctl_luns[targ_lun]; 11853 else { 11854 mtx_unlock(&softc->ctl_lock); 11855 retval = 1; 11856 break; 11857 } 11858 11859 if (!(io->io_hdr.flags & 11860 CTL_FLAG_FROM_OTHER_SC)) { 11861 union ctl_ha_msg msg_info; 11862 11863 io->io_hdr.flags |= 11864 CTL_FLAG_SENT_2OTHER_SC; 11865 msg_info.hdr.msg_type = 11866 CTL_MSG_MANAGE_TASKS; 11867 msg_info.hdr.nexus = io->io_hdr.nexus; 11868 msg_info.task.task_action = 11869 CTL_TASK_LUN_RESET; 11870 msg_info.hdr.original_sc = NULL; 11871 msg_info.hdr.serializing_sc = NULL; 11872 if (CTL_HA_STATUS_SUCCESS != 11873 ctl_ha_msg_send(CTL_HA_CHAN_CTL, 11874 (void *)&msg_info, 11875 sizeof(msg_info), 0)) { 11876 } 11877 } 11878 11879 retval = ctl_lun_reset(lun, io, 11880 CTL_UA_LUN_RESET); 11881 mtx_unlock(&softc->ctl_lock); 11882 break; 11883 } 11884 case CTL_TASK_TARGET_RESET: 11885 retval = ctl_target_reset(softc, io, CTL_UA_TARG_RESET); 11886 break; 11887 case CTL_TASK_BUS_RESET: 11888 retval = ctl_bus_reset(softc, io); 11889 break; 11890 case CTL_TASK_PORT_LOGIN: 11891 break; 11892 case CTL_TASK_PORT_LOGOUT: 11893 break; 11894 default: 11895 printf("ctl_run_task: got unknown task management event %d\n", 11896 io->taskio.task_action); 11897 break; 11898 } 11899 if (retval == 0) 11900 io->io_hdr.status = CTL_SUCCESS; 11901 else 11902 io->io_hdr.status = CTL_ERROR; 11903 ctl_done(io); 11904} 11905 11906/* 11907 * For HA operation. Handle commands that come in from the other 11908 * controller. 11909 */ 11910static void 11911ctl_handle_isc(union ctl_io *io) 11912{ 11913 int free_io; 11914 struct ctl_lun *lun; 11915 struct ctl_softc *softc; 11916 uint32_t targ_lun; 11917 11918 softc = control_softc; 11919 11920 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 11921 lun = softc->ctl_luns[targ_lun]; 11922 11923 switch (io->io_hdr.msg_type) { 11924 case CTL_MSG_SERIALIZE: 11925 free_io = ctl_serialize_other_sc_cmd(&io->scsiio); 11926 break; 11927 case CTL_MSG_R2R: { 11928 const struct ctl_cmd_entry *entry; 11929 11930 /* 11931 * This is only used in SER_ONLY mode. 11932 */ 11933 free_io = 0; 11934 entry = ctl_get_cmd_entry(&io->scsiio, NULL); 11935 mtx_lock(&lun->lun_lock); 11936 if (ctl_scsiio_lun_check(lun, 11937 entry, (struct ctl_scsiio *)io) != 0) { 11938 mtx_unlock(&lun->lun_lock); 11939 ctl_done(io); 11940 break; 11941 } 11942 io->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 11943 mtx_unlock(&lun->lun_lock); 11944 ctl_enqueue_rtr(io); 11945 break; 11946 } 11947 case CTL_MSG_FINISH_IO: 11948 if (softc->ha_mode == CTL_HA_MODE_XFER) { 11949 free_io = 0; 11950 ctl_done(io); 11951 } else { 11952 free_io = 1; 11953 mtx_lock(&lun->lun_lock); 11954 TAILQ_REMOVE(&lun->ooa_queue, &io->io_hdr, 11955 ooa_links); 11956 ctl_check_blocked(lun); 11957 mtx_unlock(&lun->lun_lock); 11958 } 11959 break; 11960 case CTL_MSG_PERS_ACTION: 11961 ctl_hndl_per_res_out_on_other_sc( 11962 (union ctl_ha_msg *)&io->presio.pr_msg); 11963 free_io = 1; 11964 break; 11965 case CTL_MSG_BAD_JUJU: 11966 free_io = 0; 11967 ctl_done(io); 11968 break; 11969 case CTL_MSG_DATAMOVE: 11970 /* Only used in XFER mode */ 11971 free_io = 0; 11972 ctl_datamove_remote(io); 11973 break; 11974 case CTL_MSG_DATAMOVE_DONE: 11975 /* Only used in XFER mode */ 11976 free_io = 0; 11977 io->scsiio.be_move_done(io); 11978 break; 11979 default: 11980 free_io = 1; 11981 printf("%s: Invalid message type %d\n", 11982 __func__, io->io_hdr.msg_type); 11983 break; 11984 } 11985 if (free_io) 11986 ctl_free_io(io); 11987 11988} 11989 11990 11991/* 11992 * Returns the match type in the case of a match, or CTL_LUN_PAT_NONE if 11993 * there is no match. 11994 */ 11995static ctl_lun_error_pattern 11996ctl_cmd_pattern_match(struct ctl_scsiio *ctsio, struct ctl_error_desc *desc) 11997{ 11998 const struct ctl_cmd_entry *entry; 11999 ctl_lun_error_pattern filtered_pattern, pattern; 12000 12001 pattern = desc->error_pattern; 12002 12003 /* 12004 * XXX KDM we need more data passed into this function to match a 12005 * custom pattern, and we actually need to implement custom pattern 12006 * matching. 12007 */ 12008 if (pattern & CTL_LUN_PAT_CMD) 12009 return (CTL_LUN_PAT_CMD); 12010 12011 if ((pattern & CTL_LUN_PAT_MASK) == CTL_LUN_PAT_ANY) 12012 return (CTL_LUN_PAT_ANY); 12013 12014 entry = ctl_get_cmd_entry(ctsio, NULL); 12015 12016 filtered_pattern = entry->pattern & pattern; 12017 12018 /* 12019 * If the user requested specific flags in the pattern (e.g. 12020 * CTL_LUN_PAT_RANGE), make sure the command supports all of those 12021 * flags. 12022 * 12023 * If the user did not specify any flags, it doesn't matter whether 12024 * or not the command supports the flags. 12025 */ 12026 if ((filtered_pattern & ~CTL_LUN_PAT_MASK) != 12027 (pattern & ~CTL_LUN_PAT_MASK)) 12028 return (CTL_LUN_PAT_NONE); 12029 12030 /* 12031 * If the user asked for a range check, see if the requested LBA 12032 * range overlaps with this command's LBA range. 12033 */ 12034 if (filtered_pattern & CTL_LUN_PAT_RANGE) { 12035 uint64_t lba1; 12036 uint64_t len1; 12037 ctl_action action; 12038 int retval; 12039 12040 retval = ctl_get_lba_len((union ctl_io *)ctsio, &lba1, &len1); 12041 if (retval != 0) 12042 return (CTL_LUN_PAT_NONE); 12043 12044 action = ctl_extent_check_lba(lba1, len1, desc->lba_range.lba, 12045 desc->lba_range.len, FALSE); 12046 /* 12047 * A "pass" means that the LBA ranges don't overlap, so 12048 * this doesn't match the user's range criteria. 12049 */ 12050 if (action == CTL_ACTION_PASS) 12051 return (CTL_LUN_PAT_NONE); 12052 } 12053 12054 return (filtered_pattern); 12055} 12056 12057static void 12058ctl_inject_error(struct ctl_lun *lun, union ctl_io *io) 12059{ 12060 struct ctl_error_desc *desc, *desc2; 12061 12062 mtx_assert(&lun->lun_lock, MA_OWNED); 12063 12064 STAILQ_FOREACH_SAFE(desc, &lun->error_list, links, desc2) { 12065 ctl_lun_error_pattern pattern; 12066 /* 12067 * Check to see whether this particular command matches 12068 * the pattern in the descriptor. 12069 */ 12070 pattern = ctl_cmd_pattern_match(&io->scsiio, desc); 12071 if ((pattern & CTL_LUN_PAT_MASK) == CTL_LUN_PAT_NONE) 12072 continue; 12073 12074 switch (desc->lun_error & CTL_LUN_INJ_TYPE) { 12075 case CTL_LUN_INJ_ABORTED: 12076 ctl_set_aborted(&io->scsiio); 12077 break; 12078 case CTL_LUN_INJ_MEDIUM_ERR: 12079 ctl_set_medium_error(&io->scsiio); 12080 break; 12081 case CTL_LUN_INJ_UA: 12082 /* 29h/00h POWER ON, RESET, OR BUS DEVICE RESET 12083 * OCCURRED */ 12084 ctl_set_ua(&io->scsiio, 0x29, 0x00); 12085 break; 12086 case CTL_LUN_INJ_CUSTOM: 12087 /* 12088 * We're assuming the user knows what he is doing. 12089 * Just copy the sense information without doing 12090 * checks. 12091 */ 12092 bcopy(&desc->custom_sense, &io->scsiio.sense_data, 12093 MIN(sizeof(desc->custom_sense), 12094 sizeof(io->scsiio.sense_data))); 12095 io->scsiio.scsi_status = SCSI_STATUS_CHECK_COND; 12096 io->scsiio.sense_len = SSD_FULL_SIZE; 12097 io->io_hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 12098 break; 12099 case CTL_LUN_INJ_NONE: 12100 default: 12101 /* 12102 * If this is an error injection type we don't know 12103 * about, clear the continuous flag (if it is set) 12104 * so it will get deleted below. 12105 */ 12106 desc->lun_error &= ~CTL_LUN_INJ_CONTINUOUS; 12107 break; 12108 } 12109 /* 12110 * By default, each error injection action is a one-shot 12111 */ 12112 if (desc->lun_error & CTL_LUN_INJ_CONTINUOUS) 12113 continue; 12114 12115 STAILQ_REMOVE(&lun->error_list, desc, ctl_error_desc, links); 12116 12117 free(desc, M_CTL); 12118 } 12119} 12120 12121#ifdef CTL_IO_DELAY 12122static void 12123ctl_datamove_timer_wakeup(void *arg) 12124{ 12125 union ctl_io *io; 12126 12127 io = (union ctl_io *)arg; 12128 12129 ctl_datamove(io); 12130} 12131#endif /* CTL_IO_DELAY */ 12132 12133void 12134ctl_datamove(union ctl_io *io) 12135{ 12136 void (*fe_datamove)(union ctl_io *io); 12137 12138 mtx_assert(&control_softc->ctl_lock, MA_NOTOWNED); 12139 12140 CTL_DEBUG_PRINT(("ctl_datamove\n")); 12141 12142#ifdef CTL_TIME_IO 12143 if ((time_uptime - io->io_hdr.start_time) > ctl_time_io_secs) { 12144 char str[256]; 12145 char path_str[64]; 12146 struct sbuf sb; 12147 12148 ctl_scsi_path_string(io, path_str, sizeof(path_str)); 12149 sbuf_new(&sb, str, sizeof(str), SBUF_FIXEDLEN); 12150 12151 sbuf_cat(&sb, path_str); 12152 switch (io->io_hdr.io_type) { 12153 case CTL_IO_SCSI: 12154 ctl_scsi_command_string(&io->scsiio, NULL, &sb); 12155 sbuf_printf(&sb, "\n"); 12156 sbuf_cat(&sb, path_str); 12157 sbuf_printf(&sb, "Tag: 0x%04x, type %d\n", 12158 io->scsiio.tag_num, io->scsiio.tag_type); 12159 break; 12160 case CTL_IO_TASK: 12161 sbuf_printf(&sb, "Task I/O type: %d, Tag: 0x%04x, " 12162 "Tag Type: %d\n", io->taskio.task_action, 12163 io->taskio.tag_num, io->taskio.tag_type); 12164 break; 12165 default: 12166 printf("Invalid CTL I/O type %d\n", io->io_hdr.io_type); 12167 panic("Invalid CTL I/O type %d\n", io->io_hdr.io_type); 12168 break; 12169 } 12170 sbuf_cat(&sb, path_str); 12171 sbuf_printf(&sb, "ctl_datamove: %jd seconds\n", 12172 (intmax_t)time_uptime - io->io_hdr.start_time); 12173 sbuf_finish(&sb); 12174 printf("%s", sbuf_data(&sb)); 12175 } 12176#endif /* CTL_TIME_IO */ 12177 12178#ifdef CTL_IO_DELAY 12179 if (io->io_hdr.flags & CTL_FLAG_DELAY_DONE) { 12180 struct ctl_lun *lun; 12181 12182 lun =(struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 12183 12184 io->io_hdr.flags &= ~CTL_FLAG_DELAY_DONE; 12185 } else { 12186 struct ctl_lun *lun; 12187 12188 lun =(struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 12189 if ((lun != NULL) 12190 && (lun->delay_info.datamove_delay > 0)) { 12191 12192 callout_init(&io->io_hdr.delay_callout, /*mpsafe*/ 1); 12193 io->io_hdr.flags |= CTL_FLAG_DELAY_DONE; 12194 callout_reset(&io->io_hdr.delay_callout, 12195 lun->delay_info.datamove_delay * hz, 12196 ctl_datamove_timer_wakeup, io); 12197 if (lun->delay_info.datamove_type == 12198 CTL_DELAY_TYPE_ONESHOT) 12199 lun->delay_info.datamove_delay = 0; 12200 return; 12201 } 12202 } 12203#endif 12204 12205 /* 12206 * This command has been aborted. Set the port status, so we fail 12207 * the data move. 12208 */ 12209 if (io->io_hdr.flags & CTL_FLAG_ABORT) { 12210 printf("ctl_datamove: tag 0x%04x on (%u:%u:%u) aborted\n", 12211 io->scsiio.tag_num, io->io_hdr.nexus.initid, 12212 io->io_hdr.nexus.targ_port, 12213 io->io_hdr.nexus.targ_lun); 12214 io->io_hdr.port_status = 31337; 12215 /* 12216 * Note that the backend, in this case, will get the 12217 * callback in its context. In other cases it may get 12218 * called in the frontend's interrupt thread context. 12219 */ 12220 io->scsiio.be_move_done(io); 12221 return; 12222 } 12223 12224 /* Don't confuse frontend with zero length data move. */ 12225 if (io->scsiio.kern_data_len == 0) { 12226 io->scsiio.be_move_done(io); 12227 return; 12228 } 12229 12230 /* 12231 * If we're in XFER mode and this I/O is from the other shelf 12232 * controller, we need to send the DMA to the other side to 12233 * actually transfer the data to/from the host. In serialize only 12234 * mode the transfer happens below CTL and ctl_datamove() is only 12235 * called on the machine that originally received the I/O. 12236 */ 12237 if ((control_softc->ha_mode == CTL_HA_MODE_XFER) 12238 && (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)) { 12239 union ctl_ha_msg msg; 12240 uint32_t sg_entries_sent; 12241 int do_sg_copy; 12242 int i; 12243 12244 memset(&msg, 0, sizeof(msg)); 12245 msg.hdr.msg_type = CTL_MSG_DATAMOVE; 12246 msg.hdr.original_sc = io->io_hdr.original_sc; 12247 msg.hdr.serializing_sc = io; 12248 msg.hdr.nexus = io->io_hdr.nexus; 12249 msg.dt.flags = io->io_hdr.flags; 12250 /* 12251 * We convert everything into a S/G list here. We can't 12252 * pass by reference, only by value between controllers. 12253 * So we can't pass a pointer to the S/G list, only as many 12254 * S/G entries as we can fit in here. If it's possible for 12255 * us to get more than CTL_HA_MAX_SG_ENTRIES S/G entries, 12256 * then we need to break this up into multiple transfers. 12257 */ 12258 if (io->scsiio.kern_sg_entries == 0) { 12259 msg.dt.kern_sg_entries = 1; 12260 /* 12261 * If this is in cached memory, flush the cache 12262 * before we send the DMA request to the other 12263 * controller. We want to do this in either the 12264 * read or the write case. The read case is 12265 * straightforward. In the write case, we want to 12266 * make sure nothing is in the local cache that 12267 * could overwrite the DMAed data. 12268 */ 12269 if ((io->io_hdr.flags & CTL_FLAG_NO_DATASYNC) == 0) { 12270 /* 12271 * XXX KDM use bus_dmamap_sync() here. 12272 */ 12273 } 12274 12275 /* 12276 * Convert to a physical address if this is a 12277 * virtual address. 12278 */ 12279 if (io->io_hdr.flags & CTL_FLAG_BUS_ADDR) { 12280 msg.dt.sg_list[0].addr = 12281 io->scsiio.kern_data_ptr; 12282 } else { 12283 /* 12284 * XXX KDM use busdma here! 12285 */ 12286#if 0 12287 msg.dt.sg_list[0].addr = (void *) 12288 vtophys(io->scsiio.kern_data_ptr); 12289#endif 12290 } 12291 12292 msg.dt.sg_list[0].len = io->scsiio.kern_data_len; 12293 do_sg_copy = 0; 12294 } else { 12295 struct ctl_sg_entry *sgl; 12296 12297 do_sg_copy = 1; 12298 msg.dt.kern_sg_entries = io->scsiio.kern_sg_entries; 12299 sgl = (struct ctl_sg_entry *)io->scsiio.kern_data_ptr; 12300 if ((io->io_hdr.flags & CTL_FLAG_NO_DATASYNC) == 0) { 12301 /* 12302 * XXX KDM use bus_dmamap_sync() here. 12303 */ 12304 } 12305 } 12306 12307 msg.dt.kern_data_len = io->scsiio.kern_data_len; 12308 msg.dt.kern_total_len = io->scsiio.kern_total_len; 12309 msg.dt.kern_data_resid = io->scsiio.kern_data_resid; 12310 msg.dt.kern_rel_offset = io->scsiio.kern_rel_offset; 12311 msg.dt.sg_sequence = 0; 12312 12313 /* 12314 * Loop until we've sent all of the S/G entries. On the 12315 * other end, we'll recompose these S/G entries into one 12316 * contiguous list before passing it to the 12317 */ 12318 for (sg_entries_sent = 0; sg_entries_sent < 12319 msg.dt.kern_sg_entries; msg.dt.sg_sequence++) { 12320 msg.dt.cur_sg_entries = MIN((sizeof(msg.dt.sg_list)/ 12321 sizeof(msg.dt.sg_list[0])), 12322 msg.dt.kern_sg_entries - sg_entries_sent); 12323 12324 if (do_sg_copy != 0) { 12325 struct ctl_sg_entry *sgl; 12326 int j; 12327 12328 sgl = (struct ctl_sg_entry *) 12329 io->scsiio.kern_data_ptr; 12330 /* 12331 * If this is in cached memory, flush the cache 12332 * before we send the DMA request to the other 12333 * controller. We want to do this in either 12334 * the * read or the write case. The read 12335 * case is straightforward. In the write 12336 * case, we want to make sure nothing is 12337 * in the local cache that could overwrite 12338 * the DMAed data. 12339 */ 12340 12341 for (i = sg_entries_sent, j = 0; 12342 i < msg.dt.cur_sg_entries; i++, j++) { 12343 if ((io->io_hdr.flags & 12344 CTL_FLAG_NO_DATASYNC) == 0) { 12345 /* 12346 * XXX KDM use bus_dmamap_sync() 12347 */ 12348 } 12349 if ((io->io_hdr.flags & 12350 CTL_FLAG_BUS_ADDR) == 0) { 12351 /* 12352 * XXX KDM use busdma. 12353 */ 12354#if 0 12355 msg.dt.sg_list[j].addr =(void *) 12356 vtophys(sgl[i].addr); 12357#endif 12358 } else { 12359 msg.dt.sg_list[j].addr = 12360 sgl[i].addr; 12361 } 12362 msg.dt.sg_list[j].len = sgl[i].len; 12363 } 12364 } 12365 12366 sg_entries_sent += msg.dt.cur_sg_entries; 12367 if (sg_entries_sent >= msg.dt.kern_sg_entries) 12368 msg.dt.sg_last = 1; 12369 else 12370 msg.dt.sg_last = 0; 12371 12372 /* 12373 * XXX KDM drop and reacquire the lock here? 12374 */ 12375 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, 12376 sizeof(msg), 0) > CTL_HA_STATUS_SUCCESS) { 12377 /* 12378 * XXX do something here. 12379 */ 12380 } 12381 12382 msg.dt.sent_sg_entries = sg_entries_sent; 12383 } 12384 io->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 12385 if (io->io_hdr.flags & CTL_FLAG_FAILOVER) 12386 ctl_failover_io(io, /*have_lock*/ 0); 12387 12388 } else { 12389 12390 /* 12391 * Lookup the fe_datamove() function for this particular 12392 * front end. 12393 */ 12394 fe_datamove = 12395 control_softc->ctl_ports[ctl_port_idx(io->io_hdr.nexus.targ_port)]->fe_datamove; 12396 12397 fe_datamove(io); 12398 } 12399} 12400 12401static void 12402ctl_send_datamove_done(union ctl_io *io, int have_lock) 12403{ 12404 union ctl_ha_msg msg; 12405 int isc_status; 12406 12407 memset(&msg, 0, sizeof(msg)); 12408 12409 msg.hdr.msg_type = CTL_MSG_DATAMOVE_DONE; 12410 msg.hdr.original_sc = io; 12411 msg.hdr.serializing_sc = io->io_hdr.serializing_sc; 12412 msg.hdr.nexus = io->io_hdr.nexus; 12413 msg.hdr.status = io->io_hdr.status; 12414 msg.scsi.tag_num = io->scsiio.tag_num; 12415 msg.scsi.tag_type = io->scsiio.tag_type; 12416 msg.scsi.scsi_status = io->scsiio.scsi_status; 12417 memcpy(&msg.scsi.sense_data, &io->scsiio.sense_data, 12418 sizeof(io->scsiio.sense_data)); 12419 msg.scsi.sense_len = io->scsiio.sense_len; 12420 msg.scsi.sense_residual = io->scsiio.sense_residual; 12421 msg.scsi.fetd_status = io->io_hdr.port_status; 12422 msg.scsi.residual = io->scsiio.residual; 12423 io->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 12424 12425 if (io->io_hdr.flags & CTL_FLAG_FAILOVER) { 12426 ctl_failover_io(io, /*have_lock*/ have_lock); 12427 return; 12428 } 12429 12430 isc_status = ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, sizeof(msg), 0); 12431 if (isc_status > CTL_HA_STATUS_SUCCESS) { 12432 /* XXX do something if this fails */ 12433 } 12434 12435} 12436 12437/* 12438 * The DMA to the remote side is done, now we need to tell the other side 12439 * we're done so it can continue with its data movement. 12440 */ 12441static void 12442ctl_datamove_remote_write_cb(struct ctl_ha_dt_req *rq) 12443{ 12444 union ctl_io *io; 12445 12446 io = rq->context; 12447 12448 if (rq->ret != CTL_HA_STATUS_SUCCESS) { 12449 printf("%s: ISC DMA write failed with error %d", __func__, 12450 rq->ret); 12451 ctl_set_internal_failure(&io->scsiio, 12452 /*sks_valid*/ 1, 12453 /*retry_count*/ rq->ret); 12454 } 12455 12456 ctl_dt_req_free(rq); 12457 12458 /* 12459 * In this case, we had to malloc the memory locally. Free it. 12460 */ 12461 if ((io->io_hdr.flags & CTL_FLAG_AUTO_MIRROR) == 0) { 12462 int i; 12463 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 12464 free(io->io_hdr.local_sglist[i].addr, M_CTL); 12465 } 12466 /* 12467 * The data is in local and remote memory, so now we need to send 12468 * status (good or back) back to the other side. 12469 */ 12470 ctl_send_datamove_done(io, /*have_lock*/ 0); 12471} 12472 12473/* 12474 * We've moved the data from the host/controller into local memory. Now we 12475 * need to push it over to the remote controller's memory. 12476 */ 12477static int 12478ctl_datamove_remote_dm_write_cb(union ctl_io *io) 12479{ 12480 int retval; 12481 12482 retval = 0; 12483 12484 retval = ctl_datamove_remote_xfer(io, CTL_HA_DT_CMD_WRITE, 12485 ctl_datamove_remote_write_cb); 12486 12487 return (retval); 12488} 12489 12490static void 12491ctl_datamove_remote_write(union ctl_io *io) 12492{ 12493 int retval; 12494 void (*fe_datamove)(union ctl_io *io); 12495 12496 /* 12497 * - Get the data from the host/HBA into local memory. 12498 * - DMA memory from the local controller to the remote controller. 12499 * - Send status back to the remote controller. 12500 */ 12501 12502 retval = ctl_datamove_remote_sgl_setup(io); 12503 if (retval != 0) 12504 return; 12505 12506 /* Switch the pointer over so the FETD knows what to do */ 12507 io->scsiio.kern_data_ptr = (uint8_t *)io->io_hdr.local_sglist; 12508 12509 /* 12510 * Use a custom move done callback, since we need to send completion 12511 * back to the other controller, not to the backend on this side. 12512 */ 12513 io->scsiio.be_move_done = ctl_datamove_remote_dm_write_cb; 12514 12515 fe_datamove = control_softc->ctl_ports[ctl_port_idx(io->io_hdr.nexus.targ_port)]->fe_datamove; 12516 12517 fe_datamove(io); 12518 12519 return; 12520 12521} 12522 12523static int 12524ctl_datamove_remote_dm_read_cb(union ctl_io *io) 12525{ 12526#if 0 12527 char str[256]; 12528 char path_str[64]; 12529 struct sbuf sb; 12530#endif 12531 12532 /* 12533 * In this case, we had to malloc the memory locally. Free it. 12534 */ 12535 if ((io->io_hdr.flags & CTL_FLAG_AUTO_MIRROR) == 0) { 12536 int i; 12537 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 12538 free(io->io_hdr.local_sglist[i].addr, M_CTL); 12539 } 12540 12541#if 0 12542 scsi_path_string(io, path_str, sizeof(path_str)); 12543 sbuf_new(&sb, str, sizeof(str), SBUF_FIXEDLEN); 12544 sbuf_cat(&sb, path_str); 12545 scsi_command_string(&io->scsiio, NULL, &sb); 12546 sbuf_printf(&sb, "\n"); 12547 sbuf_cat(&sb, path_str); 12548 sbuf_printf(&sb, "Tag: 0x%04x, type %d\n", 12549 io->scsiio.tag_num, io->scsiio.tag_type); 12550 sbuf_cat(&sb, path_str); 12551 sbuf_printf(&sb, "%s: flags %#x, status %#x\n", __func__, 12552 io->io_hdr.flags, io->io_hdr.status); 12553 sbuf_finish(&sb); 12554 printk("%s", sbuf_data(&sb)); 12555#endif 12556 12557 12558 /* 12559 * The read is done, now we need to send status (good or bad) back 12560 * to the other side. 12561 */ 12562 ctl_send_datamove_done(io, /*have_lock*/ 0); 12563 12564 return (0); 12565} 12566 12567static void 12568ctl_datamove_remote_read_cb(struct ctl_ha_dt_req *rq) 12569{ 12570 union ctl_io *io; 12571 void (*fe_datamove)(union ctl_io *io); 12572 12573 io = rq->context; 12574 12575 if (rq->ret != CTL_HA_STATUS_SUCCESS) { 12576 printf("%s: ISC DMA read failed with error %d", __func__, 12577 rq->ret); 12578 ctl_set_internal_failure(&io->scsiio, 12579 /*sks_valid*/ 1, 12580 /*retry_count*/ rq->ret); 12581 } 12582 12583 ctl_dt_req_free(rq); 12584 12585 /* Switch the pointer over so the FETD knows what to do */ 12586 io->scsiio.kern_data_ptr = (uint8_t *)io->io_hdr.local_sglist; 12587 12588 /* 12589 * Use a custom move done callback, since we need to send completion 12590 * back to the other controller, not to the backend on this side. 12591 */ 12592 io->scsiio.be_move_done = ctl_datamove_remote_dm_read_cb; 12593 12594 /* XXX KDM add checks like the ones in ctl_datamove? */ 12595 12596 fe_datamove = control_softc->ctl_ports[ctl_port_idx(io->io_hdr.nexus.targ_port)]->fe_datamove; 12597 12598 fe_datamove(io); 12599} 12600 12601static int 12602ctl_datamove_remote_sgl_setup(union ctl_io *io) 12603{ 12604 struct ctl_sg_entry *local_sglist, *remote_sglist; 12605 struct ctl_sg_entry *local_dma_sglist, *remote_dma_sglist; 12606 struct ctl_softc *softc; 12607 int retval; 12608 int i; 12609 12610 retval = 0; 12611 softc = control_softc; 12612 12613 local_sglist = io->io_hdr.local_sglist; 12614 local_dma_sglist = io->io_hdr.local_dma_sglist; 12615 remote_sglist = io->io_hdr.remote_sglist; 12616 remote_dma_sglist = io->io_hdr.remote_dma_sglist; 12617 12618 if (io->io_hdr.flags & CTL_FLAG_AUTO_MIRROR) { 12619 for (i = 0; i < io->scsiio.kern_sg_entries; i++) { 12620 local_sglist[i].len = remote_sglist[i].len; 12621 12622 /* 12623 * XXX Detect the situation where the RS-level I/O 12624 * redirector on the other side has already read the 12625 * data off of the AOR RS on this side, and 12626 * transferred it to remote (mirror) memory on the 12627 * other side. Since we already have the data in 12628 * memory here, we just need to use it. 12629 * 12630 * XXX KDM this can probably be removed once we 12631 * get the cache device code in and take the 12632 * current AOR implementation out. 12633 */ 12634#ifdef NEEDTOPORT 12635 if ((remote_sglist[i].addr >= 12636 (void *)vtophys(softc->mirr->addr)) 12637 && (remote_sglist[i].addr < 12638 ((void *)vtophys(softc->mirr->addr) + 12639 CacheMirrorOffset))) { 12640 local_sglist[i].addr = remote_sglist[i].addr - 12641 CacheMirrorOffset; 12642 if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == 12643 CTL_FLAG_DATA_IN) 12644 io->io_hdr.flags |= CTL_FLAG_REDIR_DONE; 12645 } else { 12646 local_sglist[i].addr = remote_sglist[i].addr + 12647 CacheMirrorOffset; 12648 } 12649#endif 12650#if 0 12651 printf("%s: local %p, remote %p, len %d\n", 12652 __func__, local_sglist[i].addr, 12653 remote_sglist[i].addr, local_sglist[i].len); 12654#endif 12655 } 12656 } else { 12657 uint32_t len_to_go; 12658 12659 /* 12660 * In this case, we don't have automatically allocated 12661 * memory for this I/O on this controller. This typically 12662 * happens with internal CTL I/O -- e.g. inquiry, mode 12663 * sense, etc. Anything coming from RAIDCore will have 12664 * a mirror area available. 12665 */ 12666 len_to_go = io->scsiio.kern_data_len; 12667 12668 /* 12669 * Clear the no datasync flag, we have to use malloced 12670 * buffers. 12671 */ 12672 io->io_hdr.flags &= ~CTL_FLAG_NO_DATASYNC; 12673 12674 /* 12675 * The difficult thing here is that the size of the various 12676 * S/G segments may be different than the size from the 12677 * remote controller. That'll make it harder when DMAing 12678 * the data back to the other side. 12679 */ 12680 for (i = 0; (i < sizeof(io->io_hdr.remote_sglist) / 12681 sizeof(io->io_hdr.remote_sglist[0])) && 12682 (len_to_go > 0); i++) { 12683 local_sglist[i].len = MIN(len_to_go, 131072); 12684 CTL_SIZE_8B(local_dma_sglist[i].len, 12685 local_sglist[i].len); 12686 local_sglist[i].addr = 12687 malloc(local_dma_sglist[i].len, M_CTL,M_WAITOK); 12688 12689 local_dma_sglist[i].addr = local_sglist[i].addr; 12690 12691 if (local_sglist[i].addr == NULL) { 12692 int j; 12693 12694 printf("malloc failed for %zd bytes!", 12695 local_dma_sglist[i].len); 12696 for (j = 0; j < i; j++) { 12697 free(local_sglist[j].addr, M_CTL); 12698 } 12699 ctl_set_internal_failure(&io->scsiio, 12700 /*sks_valid*/ 1, 12701 /*retry_count*/ 4857); 12702 retval = 1; 12703 goto bailout_error; 12704 12705 } 12706 /* XXX KDM do we need a sync here? */ 12707 12708 len_to_go -= local_sglist[i].len; 12709 } 12710 /* 12711 * Reset the number of S/G entries accordingly. The 12712 * original number of S/G entries is available in 12713 * rem_sg_entries. 12714 */ 12715 io->scsiio.kern_sg_entries = i; 12716 12717#if 0 12718 printf("%s: kern_sg_entries = %d\n", __func__, 12719 io->scsiio.kern_sg_entries); 12720 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 12721 printf("%s: sg[%d] = %p, %d (DMA: %d)\n", __func__, i, 12722 local_sglist[i].addr, local_sglist[i].len, 12723 local_dma_sglist[i].len); 12724#endif 12725 } 12726 12727 12728 return (retval); 12729 12730bailout_error: 12731 12732 ctl_send_datamove_done(io, /*have_lock*/ 0); 12733 12734 return (retval); 12735} 12736 12737static int 12738ctl_datamove_remote_xfer(union ctl_io *io, unsigned command, 12739 ctl_ha_dt_cb callback) 12740{ 12741 struct ctl_ha_dt_req *rq; 12742 struct ctl_sg_entry *remote_sglist, *local_sglist; 12743 struct ctl_sg_entry *remote_dma_sglist, *local_dma_sglist; 12744 uint32_t local_used, remote_used, total_used; 12745 int retval; 12746 int i, j; 12747 12748 retval = 0; 12749 12750 rq = ctl_dt_req_alloc(); 12751 12752 /* 12753 * If we failed to allocate the request, and if the DMA didn't fail 12754 * anyway, set busy status. This is just a resource allocation 12755 * failure. 12756 */ 12757 if ((rq == NULL) 12758 && ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE)) 12759 ctl_set_busy(&io->scsiio); 12760 12761 if ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE) { 12762 12763 if (rq != NULL) 12764 ctl_dt_req_free(rq); 12765 12766 /* 12767 * The data move failed. We need to return status back 12768 * to the other controller. No point in trying to DMA 12769 * data to the remote controller. 12770 */ 12771 12772 ctl_send_datamove_done(io, /*have_lock*/ 0); 12773 12774 retval = 1; 12775 12776 goto bailout; 12777 } 12778 12779 local_sglist = io->io_hdr.local_sglist; 12780 local_dma_sglist = io->io_hdr.local_dma_sglist; 12781 remote_sglist = io->io_hdr.remote_sglist; 12782 remote_dma_sglist = io->io_hdr.remote_dma_sglist; 12783 local_used = 0; 12784 remote_used = 0; 12785 total_used = 0; 12786 12787 if (io->io_hdr.flags & CTL_FLAG_REDIR_DONE) { 12788 rq->ret = CTL_HA_STATUS_SUCCESS; 12789 rq->context = io; 12790 callback(rq); 12791 goto bailout; 12792 } 12793 12794 /* 12795 * Pull/push the data over the wire from/to the other controller. 12796 * This takes into account the possibility that the local and 12797 * remote sglists may not be identical in terms of the size of 12798 * the elements and the number of elements. 12799 * 12800 * One fundamental assumption here is that the length allocated for 12801 * both the local and remote sglists is identical. Otherwise, we've 12802 * essentially got a coding error of some sort. 12803 */ 12804 for (i = 0, j = 0; total_used < io->scsiio.kern_data_len; ) { 12805 int isc_ret; 12806 uint32_t cur_len, dma_length; 12807 uint8_t *tmp_ptr; 12808 12809 rq->id = CTL_HA_DATA_CTL; 12810 rq->command = command; 12811 rq->context = io; 12812 12813 /* 12814 * Both pointers should be aligned. But it is possible 12815 * that the allocation length is not. They should both 12816 * also have enough slack left over at the end, though, 12817 * to round up to the next 8 byte boundary. 12818 */ 12819 cur_len = MIN(local_sglist[i].len - local_used, 12820 remote_sglist[j].len - remote_used); 12821 12822 /* 12823 * In this case, we have a size issue and need to decrease 12824 * the size, except in the case where we actually have less 12825 * than 8 bytes left. In that case, we need to increase 12826 * the DMA length to get the last bit. 12827 */ 12828 if ((cur_len & 0x7) != 0) { 12829 if (cur_len > 0x7) { 12830 cur_len = cur_len - (cur_len & 0x7); 12831 dma_length = cur_len; 12832 } else { 12833 CTL_SIZE_8B(dma_length, cur_len); 12834 } 12835 12836 } else 12837 dma_length = cur_len; 12838 12839 /* 12840 * If we had to allocate memory for this I/O, instead of using 12841 * the non-cached mirror memory, we'll need to flush the cache 12842 * before trying to DMA to the other controller. 12843 * 12844 * We could end up doing this multiple times for the same 12845 * segment if we have a larger local segment than remote 12846 * segment. That shouldn't be an issue. 12847 */ 12848 if ((io->io_hdr.flags & CTL_FLAG_NO_DATASYNC) == 0) { 12849 /* 12850 * XXX KDM use bus_dmamap_sync() here. 12851 */ 12852 } 12853 12854 rq->size = dma_length; 12855 12856 tmp_ptr = (uint8_t *)local_sglist[i].addr; 12857 tmp_ptr += local_used; 12858 12859 /* Use physical addresses when talking to ISC hardware */ 12860 if ((io->io_hdr.flags & CTL_FLAG_BUS_ADDR) == 0) { 12861 /* XXX KDM use busdma */ 12862#if 0 12863 rq->local = vtophys(tmp_ptr); 12864#endif 12865 } else 12866 rq->local = tmp_ptr; 12867 12868 tmp_ptr = (uint8_t *)remote_sglist[j].addr; 12869 tmp_ptr += remote_used; 12870 rq->remote = tmp_ptr; 12871 12872 rq->callback = NULL; 12873 12874 local_used += cur_len; 12875 if (local_used >= local_sglist[i].len) { 12876 i++; 12877 local_used = 0; 12878 } 12879 12880 remote_used += cur_len; 12881 if (remote_used >= remote_sglist[j].len) { 12882 j++; 12883 remote_used = 0; 12884 } 12885 total_used += cur_len; 12886 12887 if (total_used >= io->scsiio.kern_data_len) 12888 rq->callback = callback; 12889 12890 if ((rq->size & 0x7) != 0) { 12891 printf("%s: warning: size %d is not on 8b boundary\n", 12892 __func__, rq->size); 12893 } 12894 if (((uintptr_t)rq->local & 0x7) != 0) { 12895 printf("%s: warning: local %p not on 8b boundary\n", 12896 __func__, rq->local); 12897 } 12898 if (((uintptr_t)rq->remote & 0x7) != 0) { 12899 printf("%s: warning: remote %p not on 8b boundary\n", 12900 __func__, rq->local); 12901 } 12902#if 0 12903 printf("%s: %s: local %#x remote %#x size %d\n", __func__, 12904 (command == CTL_HA_DT_CMD_WRITE) ? "WRITE" : "READ", 12905 rq->local, rq->remote, rq->size); 12906#endif 12907 12908 isc_ret = ctl_dt_single(rq); 12909 if (isc_ret == CTL_HA_STATUS_WAIT) 12910 continue; 12911 12912 if (isc_ret == CTL_HA_STATUS_DISCONNECT) { 12913 rq->ret = CTL_HA_STATUS_SUCCESS; 12914 } else { 12915 rq->ret = isc_ret; 12916 } 12917 callback(rq); 12918 goto bailout; 12919 } 12920 12921bailout: 12922 return (retval); 12923 12924} 12925 12926static void 12927ctl_datamove_remote_read(union ctl_io *io) 12928{ 12929 int retval; 12930 int i; 12931 12932 /* 12933 * This will send an error to the other controller in the case of a 12934 * failure. 12935 */ 12936 retval = ctl_datamove_remote_sgl_setup(io); 12937 if (retval != 0) 12938 return; 12939 12940 retval = ctl_datamove_remote_xfer(io, CTL_HA_DT_CMD_READ, 12941 ctl_datamove_remote_read_cb); 12942 if ((retval != 0) 12943 && ((io->io_hdr.flags & CTL_FLAG_AUTO_MIRROR) == 0)) { 12944 /* 12945 * Make sure we free memory if there was an error.. The 12946 * ctl_datamove_remote_xfer() function will send the 12947 * datamove done message, or call the callback with an 12948 * error if there is a problem. 12949 */ 12950 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 12951 free(io->io_hdr.local_sglist[i].addr, M_CTL); 12952 } 12953 12954 return; 12955} 12956 12957/* 12958 * Process a datamove request from the other controller. This is used for 12959 * XFER mode only, not SER_ONLY mode. For writes, we DMA into local memory 12960 * first. Once that is complete, the data gets DMAed into the remote 12961 * controller's memory. For reads, we DMA from the remote controller's 12962 * memory into our memory first, and then move it out to the FETD. 12963 */ 12964static void 12965ctl_datamove_remote(union ctl_io *io) 12966{ 12967 struct ctl_softc *softc; 12968 12969 softc = control_softc; 12970 12971 mtx_assert(&softc->ctl_lock, MA_NOTOWNED); 12972 12973 /* 12974 * Note that we look for an aborted I/O here, but don't do some of 12975 * the other checks that ctl_datamove() normally does. 12976 * We don't need to run the datamove delay code, since that should 12977 * have been done if need be on the other controller. 12978 */ 12979 if (io->io_hdr.flags & CTL_FLAG_ABORT) { 12980 printf("%s: tag 0x%04x on (%u:%u:%u) aborted\n", __func__, 12981 io->scsiio.tag_num, io->io_hdr.nexus.initid, 12982 io->io_hdr.nexus.targ_port, 12983 io->io_hdr.nexus.targ_lun); 12984 io->io_hdr.port_status = 31338; 12985 ctl_send_datamove_done(io, /*have_lock*/ 0); 12986 return; 12987 } 12988 12989 if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_OUT) { 12990 ctl_datamove_remote_write(io); 12991 } else if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_IN){ 12992 ctl_datamove_remote_read(io); 12993 } else { 12994 union ctl_ha_msg msg; 12995 struct scsi_sense_data *sense; 12996 uint8_t sks[3]; 12997 int retry_count; 12998 12999 memset(&msg, 0, sizeof(msg)); 13000 13001 msg.hdr.msg_type = CTL_MSG_BAD_JUJU; 13002 msg.hdr.status = CTL_SCSI_ERROR; 13003 msg.scsi.scsi_status = SCSI_STATUS_CHECK_COND; 13004 13005 retry_count = 4243; 13006 13007 sense = &msg.scsi.sense_data; 13008 sks[0] = SSD_SCS_VALID; 13009 sks[1] = (retry_count >> 8) & 0xff; 13010 sks[2] = retry_count & 0xff; 13011 13012 /* "Internal target failure" */ 13013 scsi_set_sense_data(sense, 13014 /*sense_format*/ SSD_TYPE_NONE, 13015 /*current_error*/ 1, 13016 /*sense_key*/ SSD_KEY_HARDWARE_ERROR, 13017 /*asc*/ 0x44, 13018 /*ascq*/ 0x00, 13019 /*type*/ SSD_ELEM_SKS, 13020 /*size*/ sizeof(sks), 13021 /*data*/ sks, 13022 SSD_ELEM_NONE); 13023 13024 io->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 13025 if (io->io_hdr.flags & CTL_FLAG_FAILOVER) { 13026 ctl_failover_io(io, /*have_lock*/ 1); 13027 return; 13028 } 13029 13030 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, sizeof(msg), 0) > 13031 CTL_HA_STATUS_SUCCESS) { 13032 /* XXX KDM what to do if this fails? */ 13033 } 13034 return; 13035 } 13036 13037} 13038 13039static int 13040ctl_process_done(union ctl_io *io) 13041{ 13042 struct ctl_lun *lun; 13043 struct ctl_softc *softc = control_softc; 13044 void (*fe_done)(union ctl_io *io); 13045 uint32_t targ_port = ctl_port_idx(io->io_hdr.nexus.targ_port); 13046 13047 CTL_DEBUG_PRINT(("ctl_process_done\n")); 13048 13049 fe_done = softc->ctl_ports[targ_port]->fe_done; 13050 13051#ifdef CTL_TIME_IO 13052 if ((time_uptime - io->io_hdr.start_time) > ctl_time_io_secs) { 13053 char str[256]; 13054 char path_str[64]; 13055 struct sbuf sb; 13056 13057 ctl_scsi_path_string(io, path_str, sizeof(path_str)); 13058 sbuf_new(&sb, str, sizeof(str), SBUF_FIXEDLEN); 13059 13060 sbuf_cat(&sb, path_str); 13061 switch (io->io_hdr.io_type) { 13062 case CTL_IO_SCSI: 13063 ctl_scsi_command_string(&io->scsiio, NULL, &sb); 13064 sbuf_printf(&sb, "\n"); 13065 sbuf_cat(&sb, path_str); 13066 sbuf_printf(&sb, "Tag: 0x%04x, type %d\n", 13067 io->scsiio.tag_num, io->scsiio.tag_type); 13068 break; 13069 case CTL_IO_TASK: 13070 sbuf_printf(&sb, "Task I/O type: %d, Tag: 0x%04x, " 13071 "Tag Type: %d\n", io->taskio.task_action, 13072 io->taskio.tag_num, io->taskio.tag_type); 13073 break; 13074 default: 13075 printf("Invalid CTL I/O type %d\n", io->io_hdr.io_type); 13076 panic("Invalid CTL I/O type %d\n", io->io_hdr.io_type); 13077 break; 13078 } 13079 sbuf_cat(&sb, path_str); 13080 sbuf_printf(&sb, "ctl_process_done: %jd seconds\n", 13081 (intmax_t)time_uptime - io->io_hdr.start_time); 13082 sbuf_finish(&sb); 13083 printf("%s", sbuf_data(&sb)); 13084 } 13085#endif /* CTL_TIME_IO */ 13086 13087 switch (io->io_hdr.io_type) { 13088 case CTL_IO_SCSI: 13089 break; 13090 case CTL_IO_TASK: 13091 if (ctl_debug & CTL_DEBUG_INFO) 13092 ctl_io_error_print(io, NULL); 13093 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) 13094 ctl_free_io(io); 13095 else 13096 fe_done(io); 13097 return (CTL_RETVAL_COMPLETE); 13098 default: 13099 panic("ctl_process_done: invalid io type %d\n", 13100 io->io_hdr.io_type); 13101 break; /* NOTREACHED */ 13102 } 13103 13104 lun = (struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 13105 if (lun == NULL) { 13106 CTL_DEBUG_PRINT(("NULL LUN for lun %d\n", 13107 io->io_hdr.nexus.targ_mapped_lun)); 13108 goto bailout; 13109 } 13110 13111 mtx_lock(&lun->lun_lock); 13112 13113 /* 13114 * Check to see if we have any errors to inject here. We only 13115 * inject errors for commands that don't already have errors set. 13116 */ 13117 if ((STAILQ_FIRST(&lun->error_list) != NULL) && 13118 ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS) && 13119 ((io->io_hdr.flags & CTL_FLAG_STATUS_SENT) == 0)) 13120 ctl_inject_error(lun, io); 13121 13122 /* 13123 * XXX KDM how do we treat commands that aren't completed 13124 * successfully? 13125 * 13126 * XXX KDM should we also track I/O latency? 13127 */ 13128 if ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS && 13129 io->io_hdr.io_type == CTL_IO_SCSI) { 13130#ifdef CTL_TIME_IO 13131 struct bintime cur_bt; 13132#endif 13133 int type; 13134 13135 if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == 13136 CTL_FLAG_DATA_IN) 13137 type = CTL_STATS_READ; 13138 else if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == 13139 CTL_FLAG_DATA_OUT) 13140 type = CTL_STATS_WRITE; 13141 else 13142 type = CTL_STATS_NO_IO; 13143 13144 lun->stats.ports[targ_port].bytes[type] += 13145 io->scsiio.kern_total_len; 13146 lun->stats.ports[targ_port].operations[type]++; 13147#ifdef CTL_TIME_IO 13148 bintime_add(&lun->stats.ports[targ_port].dma_time[type], 13149 &io->io_hdr.dma_bt); 13150 lun->stats.ports[targ_port].num_dmas[type] += 13151 io->io_hdr.num_dmas; 13152 getbintime(&cur_bt); 13153 bintime_sub(&cur_bt, &io->io_hdr.start_bt); 13154 bintime_add(&lun->stats.ports[targ_port].time[type], &cur_bt); 13155#endif 13156 } 13157 13158 /* 13159 * Remove this from the OOA queue. 13160 */ 13161 TAILQ_REMOVE(&lun->ooa_queue, &io->io_hdr, ooa_links); 13162#ifdef CTL_TIME_IO 13163 if (TAILQ_EMPTY(&lun->ooa_queue)) 13164 lun->last_busy = getsbinuptime(); 13165#endif 13166 13167 /* 13168 * Run through the blocked queue on this LUN and see if anything 13169 * has become unblocked, now that this transaction is done. 13170 */ 13171 ctl_check_blocked(lun); 13172 13173 /* 13174 * If the LUN has been invalidated, free it if there is nothing 13175 * left on its OOA queue. 13176 */ 13177 if ((lun->flags & CTL_LUN_INVALID) 13178 && TAILQ_EMPTY(&lun->ooa_queue)) { 13179 mtx_unlock(&lun->lun_lock); 13180 mtx_lock(&softc->ctl_lock); 13181 ctl_free_lun(lun); 13182 mtx_unlock(&softc->ctl_lock); 13183 } else 13184 mtx_unlock(&lun->lun_lock); 13185 13186bailout: 13187 13188 /* 13189 * If this command has been aborted, make sure we set the status 13190 * properly. The FETD is responsible for freeing the I/O and doing 13191 * whatever it needs to do to clean up its state. 13192 */ 13193 if (io->io_hdr.flags & CTL_FLAG_ABORT) 13194 ctl_set_task_aborted(&io->scsiio); 13195 13196 /* 13197 * If enabled, print command error status. 13198 */ 13199 if ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_SUCCESS && 13200 (ctl_debug & CTL_DEBUG_INFO) != 0) 13201 ctl_io_error_print(io, NULL); 13202 13203 /* 13204 * Tell the FETD or the other shelf controller we're done with this 13205 * command. Note that only SCSI commands get to this point. Task 13206 * management commands are completed above. 13207 * 13208 * We only send status to the other controller if we're in XFER 13209 * mode. In SER_ONLY mode, the I/O is done on the controller that 13210 * received the I/O (from CTL's perspective), and so the status is 13211 * generated there. 13212 * 13213 * XXX KDM if we hold the lock here, we could cause a deadlock 13214 * if the frontend comes back in in this context to queue 13215 * something. 13216 */ 13217 if ((softc->ha_mode == CTL_HA_MODE_XFER) 13218 && (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)) { 13219 union ctl_ha_msg msg; 13220 13221 memset(&msg, 0, sizeof(msg)); 13222 msg.hdr.msg_type = CTL_MSG_FINISH_IO; 13223 msg.hdr.original_sc = io->io_hdr.original_sc; 13224 msg.hdr.nexus = io->io_hdr.nexus; 13225 msg.hdr.status = io->io_hdr.status; 13226 msg.scsi.scsi_status = io->scsiio.scsi_status; 13227 msg.scsi.tag_num = io->scsiio.tag_num; 13228 msg.scsi.tag_type = io->scsiio.tag_type; 13229 msg.scsi.sense_len = io->scsiio.sense_len; 13230 msg.scsi.sense_residual = io->scsiio.sense_residual; 13231 msg.scsi.residual = io->scsiio.residual; 13232 memcpy(&msg.scsi.sense_data, &io->scsiio.sense_data, 13233 sizeof(io->scsiio.sense_data)); 13234 /* 13235 * We copy this whether or not this is an I/O-related 13236 * command. Otherwise, we'd have to go and check to see 13237 * whether it's a read/write command, and it really isn't 13238 * worth it. 13239 */ 13240 memcpy(&msg.scsi.lbalen, 13241 &io->io_hdr.ctl_private[CTL_PRIV_LBA_LEN].bytes, 13242 sizeof(msg.scsi.lbalen)); 13243 13244 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, 13245 sizeof(msg), 0) > CTL_HA_STATUS_SUCCESS) { 13246 /* XXX do something here */ 13247 } 13248 13249 ctl_free_io(io); 13250 } else 13251 fe_done(io); 13252 13253 return (CTL_RETVAL_COMPLETE); 13254} 13255 13256#ifdef CTL_WITH_CA 13257/* 13258 * Front end should call this if it doesn't do autosense. When the request 13259 * sense comes back in from the initiator, we'll dequeue this and send it. 13260 */ 13261int 13262ctl_queue_sense(union ctl_io *io) 13263{ 13264 struct ctl_lun *lun; 13265 struct ctl_port *port; 13266 struct ctl_softc *softc; 13267 uint32_t initidx, targ_lun; 13268 13269 softc = control_softc; 13270 13271 CTL_DEBUG_PRINT(("ctl_queue_sense\n")); 13272 13273 /* 13274 * LUN lookup will likely move to the ctl_work_thread() once we 13275 * have our new queueing infrastructure (that doesn't put things on 13276 * a per-LUN queue initially). That is so that we can handle 13277 * things like an INQUIRY to a LUN that we don't have enabled. We 13278 * can't deal with that right now. 13279 */ 13280 mtx_lock(&softc->ctl_lock); 13281 13282 /* 13283 * If we don't have a LUN for this, just toss the sense 13284 * information. 13285 */ 13286 port = ctl_io_port(&ctsio->io_hdr); 13287 targ_lun = ctl_lun_map_from_port(port, io->io_hdr.nexus.targ_lun); 13288 if ((targ_lun < CTL_MAX_LUNS) 13289 && (softc->ctl_luns[targ_lun] != NULL)) 13290 lun = softc->ctl_luns[targ_lun]; 13291 else 13292 goto bailout; 13293 13294 initidx = ctl_get_initindex(&io->io_hdr.nexus); 13295 13296 mtx_lock(&lun->lun_lock); 13297 /* 13298 * Already have CA set for this LUN...toss the sense information. 13299 */ 13300 if (ctl_is_set(lun->have_ca, initidx)) { 13301 mtx_unlock(&lun->lun_lock); 13302 goto bailout; 13303 } 13304 13305 memcpy(&lun->pending_sense[initidx], &io->scsiio.sense_data, 13306 MIN(sizeof(lun->pending_sense[initidx]), 13307 sizeof(io->scsiio.sense_data))); 13308 ctl_set_mask(lun->have_ca, initidx); 13309 mtx_unlock(&lun->lun_lock); 13310 13311bailout: 13312 mtx_unlock(&softc->ctl_lock); 13313 13314 ctl_free_io(io); 13315 13316 return (CTL_RETVAL_COMPLETE); 13317} 13318#endif 13319 13320/* 13321 * Primary command inlet from frontend ports. All SCSI and task I/O 13322 * requests must go through this function. 13323 */ 13324int 13325ctl_queue(union ctl_io *io) 13326{ 13327 struct ctl_port *port; 13328 13329 CTL_DEBUG_PRINT(("ctl_queue cdb[0]=%02X\n", io->scsiio.cdb[0])); 13330 13331#ifdef CTL_TIME_IO 13332 io->io_hdr.start_time = time_uptime; 13333 getbintime(&io->io_hdr.start_bt); 13334#endif /* CTL_TIME_IO */ 13335 13336 /* Map FE-specific LUN ID into global one. */ 13337 port = ctl_io_port(&io->io_hdr); 13338 io->io_hdr.nexus.targ_mapped_lun = 13339 ctl_lun_map_from_port(port, io->io_hdr.nexus.targ_lun); 13340 13341 switch (io->io_hdr.io_type) { 13342 case CTL_IO_SCSI: 13343 case CTL_IO_TASK: 13344 if (ctl_debug & CTL_DEBUG_CDB) 13345 ctl_io_print(io); 13346 ctl_enqueue_incoming(io); 13347 break; 13348 default: 13349 printf("ctl_queue: unknown I/O type %d\n", io->io_hdr.io_type); 13350 return (EINVAL); 13351 } 13352 13353 return (CTL_RETVAL_COMPLETE); 13354} 13355 13356#ifdef CTL_IO_DELAY 13357static void 13358ctl_done_timer_wakeup(void *arg) 13359{ 13360 union ctl_io *io; 13361 13362 io = (union ctl_io *)arg; 13363 ctl_done(io); 13364} 13365#endif /* CTL_IO_DELAY */ 13366 13367void 13368ctl_done(union ctl_io *io) 13369{ 13370 13371 /* 13372 * Enable this to catch duplicate completion issues. 13373 */ 13374#if 0 13375 if (io->io_hdr.flags & CTL_FLAG_ALREADY_DONE) { 13376 printf("%s: type %d msg %d cdb %x iptl: " 13377 "%u:%u:%u tag 0x%04x " 13378 "flag %#x status %x\n", 13379 __func__, 13380 io->io_hdr.io_type, 13381 io->io_hdr.msg_type, 13382 io->scsiio.cdb[0], 13383 io->io_hdr.nexus.initid, 13384 io->io_hdr.nexus.targ_port, 13385 io->io_hdr.nexus.targ_lun, 13386 (io->io_hdr.io_type == 13387 CTL_IO_TASK) ? 13388 io->taskio.tag_num : 13389 io->scsiio.tag_num, 13390 io->io_hdr.flags, 13391 io->io_hdr.status); 13392 } else 13393 io->io_hdr.flags |= CTL_FLAG_ALREADY_DONE; 13394#endif 13395 13396 /* 13397 * This is an internal copy of an I/O, and should not go through 13398 * the normal done processing logic. 13399 */ 13400 if (io->io_hdr.flags & CTL_FLAG_INT_COPY) 13401 return; 13402 13403 /* 13404 * We need to send a msg to the serializing shelf to finish the IO 13405 * as well. We don't send a finish message to the other shelf if 13406 * this is a task management command. Task management commands 13407 * aren't serialized in the OOA queue, but rather just executed on 13408 * both shelf controllers for commands that originated on that 13409 * controller. 13410 */ 13411 if ((io->io_hdr.flags & CTL_FLAG_SENT_2OTHER_SC) 13412 && (io->io_hdr.io_type != CTL_IO_TASK)) { 13413 union ctl_ha_msg msg_io; 13414 13415 msg_io.hdr.msg_type = CTL_MSG_FINISH_IO; 13416 msg_io.hdr.serializing_sc = io->io_hdr.serializing_sc; 13417 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_io, 13418 sizeof(msg_io), 0 ) != CTL_HA_STATUS_SUCCESS) { 13419 } 13420 /* continue on to finish IO */ 13421 } 13422#ifdef CTL_IO_DELAY 13423 if (io->io_hdr.flags & CTL_FLAG_DELAY_DONE) { 13424 struct ctl_lun *lun; 13425 13426 lun =(struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 13427 13428 io->io_hdr.flags &= ~CTL_FLAG_DELAY_DONE; 13429 } else { 13430 struct ctl_lun *lun; 13431 13432 lun =(struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 13433 13434 if ((lun != NULL) 13435 && (lun->delay_info.done_delay > 0)) { 13436 13437 callout_init(&io->io_hdr.delay_callout, /*mpsafe*/ 1); 13438 io->io_hdr.flags |= CTL_FLAG_DELAY_DONE; 13439 callout_reset(&io->io_hdr.delay_callout, 13440 lun->delay_info.done_delay * hz, 13441 ctl_done_timer_wakeup, io); 13442 if (lun->delay_info.done_type == CTL_DELAY_TYPE_ONESHOT) 13443 lun->delay_info.done_delay = 0; 13444 return; 13445 } 13446 } 13447#endif /* CTL_IO_DELAY */ 13448 13449 ctl_enqueue_done(io); 13450} 13451 13452int 13453ctl_isc(struct ctl_scsiio *ctsio) 13454{ 13455 struct ctl_lun *lun; 13456 int retval; 13457 13458 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 13459 13460 CTL_DEBUG_PRINT(("ctl_isc: command: %02x\n", ctsio->cdb[0])); 13461 13462 CTL_DEBUG_PRINT(("ctl_isc: calling data_submit()\n")); 13463 13464 retval = lun->backend->data_submit((union ctl_io *)ctsio); 13465 13466 return (retval); 13467} 13468 13469 13470static void 13471ctl_work_thread(void *arg) 13472{ 13473 struct ctl_thread *thr = (struct ctl_thread *)arg; 13474 struct ctl_softc *softc = thr->ctl_softc; 13475 union ctl_io *io; 13476 int retval; 13477 13478 CTL_DEBUG_PRINT(("ctl_work_thread starting\n")); 13479 13480 for (;;) { 13481 retval = 0; 13482 13483 /* 13484 * We handle the queues in this order: 13485 * - ISC 13486 * - done queue (to free up resources, unblock other commands) 13487 * - RtR queue 13488 * - incoming queue 13489 * 13490 * If those queues are empty, we break out of the loop and 13491 * go to sleep. 13492 */ 13493 mtx_lock(&thr->queue_lock); 13494 io = (union ctl_io *)STAILQ_FIRST(&thr->isc_queue); 13495 if (io != NULL) { 13496 STAILQ_REMOVE_HEAD(&thr->isc_queue, links); 13497 mtx_unlock(&thr->queue_lock); 13498 ctl_handle_isc(io); 13499 continue; 13500 } 13501 io = (union ctl_io *)STAILQ_FIRST(&thr->done_queue); 13502 if (io != NULL) { 13503 STAILQ_REMOVE_HEAD(&thr->done_queue, links); 13504 /* clear any blocked commands, call fe_done */ 13505 mtx_unlock(&thr->queue_lock); 13506 retval = ctl_process_done(io); 13507 continue; 13508 } 13509 io = (union ctl_io *)STAILQ_FIRST(&thr->incoming_queue); 13510 if (io != NULL) { 13511 STAILQ_REMOVE_HEAD(&thr->incoming_queue, links); 13512 mtx_unlock(&thr->queue_lock); 13513 if (io->io_hdr.io_type == CTL_IO_TASK) 13514 ctl_run_task(io); 13515 else 13516 ctl_scsiio_precheck(softc, &io->scsiio); 13517 continue; 13518 } 13519 if (!ctl_pause_rtr) { 13520 io = (union ctl_io *)STAILQ_FIRST(&thr->rtr_queue); 13521 if (io != NULL) { 13522 STAILQ_REMOVE_HEAD(&thr->rtr_queue, links); 13523 mtx_unlock(&thr->queue_lock); 13524 retval = ctl_scsiio(&io->scsiio); 13525 if (retval != CTL_RETVAL_COMPLETE) 13526 CTL_DEBUG_PRINT(("ctl_scsiio failed\n")); 13527 continue; 13528 } 13529 } 13530 13531 /* Sleep until we have something to do. */ 13532 mtx_sleep(thr, &thr->queue_lock, PDROP | PRIBIO, "-", 0); 13533 } 13534} 13535 13536static void 13537ctl_lun_thread(void *arg) 13538{ 13539 struct ctl_softc *softc = (struct ctl_softc *)arg; 13540 struct ctl_be_lun *be_lun; 13541 int retval; 13542 13543 CTL_DEBUG_PRINT(("ctl_lun_thread starting\n")); 13544 13545 for (;;) { 13546 retval = 0; 13547 mtx_lock(&softc->ctl_lock); 13548 be_lun = STAILQ_FIRST(&softc->pending_lun_queue); 13549 if (be_lun != NULL) { 13550 STAILQ_REMOVE_HEAD(&softc->pending_lun_queue, links); 13551 mtx_unlock(&softc->ctl_lock); 13552 ctl_create_lun(be_lun); 13553 continue; 13554 } 13555 13556 /* Sleep until we have something to do. */ 13557 mtx_sleep(&softc->pending_lun_queue, &softc->ctl_lock, 13558 PDROP | PRIBIO, "-", 0); 13559 } 13560} 13561 13562static void 13563ctl_thresh_thread(void *arg) 13564{ 13565 struct ctl_softc *softc = (struct ctl_softc *)arg; 13566 struct ctl_lun *lun; 13567 struct ctl_be_lun *be_lun; 13568 struct scsi_da_rw_recovery_page *rwpage; 13569 struct ctl_logical_block_provisioning_page *page; 13570 const char *attr; 13571 uint64_t thres, val; 13572 int i, e; 13573 13574 CTL_DEBUG_PRINT(("ctl_thresh_thread starting\n")); 13575 13576 for (;;) { 13577 mtx_lock(&softc->ctl_lock); 13578 STAILQ_FOREACH(lun, &softc->lun_list, links) { 13579 be_lun = lun->be_lun; 13580 if ((lun->flags & CTL_LUN_DISABLED) || 13581 (lun->flags & CTL_LUN_OFFLINE) || 13582 lun->backend->lun_attr == NULL) 13583 continue; 13584 rwpage = &lun->mode_pages.rw_er_page[CTL_PAGE_CURRENT]; 13585 if ((rwpage->byte8 & SMS_RWER_LBPERE) == 0) 13586 continue; 13587 e = 0; 13588 page = &lun->mode_pages.lbp_page[CTL_PAGE_CURRENT]; 13589 for (i = 0; i < CTL_NUM_LBP_THRESH; i++) { 13590 if ((page->descr[i].flags & SLBPPD_ENABLED) == 0) 13591 continue; 13592 thres = scsi_4btoul(page->descr[i].count); 13593 thres <<= CTL_LBP_EXPONENT; 13594 switch (page->descr[i].resource) { 13595 case 0x01: 13596 attr = "blocksavail"; 13597 break; 13598 case 0x02: 13599 attr = "blocksused"; 13600 break; 13601 case 0xf1: 13602 attr = "poolblocksavail"; 13603 break; 13604 case 0xf2: 13605 attr = "poolblocksused"; 13606 break; 13607 default: 13608 continue; 13609 } 13610 mtx_unlock(&softc->ctl_lock); // XXX 13611 val = lun->backend->lun_attr( 13612 lun->be_lun->be_lun, attr); 13613 mtx_lock(&softc->ctl_lock); 13614 if (val == UINT64_MAX) 13615 continue; 13616 if ((page->descr[i].flags & SLBPPD_ARMING_MASK) 13617 == SLBPPD_ARMING_INC) 13618 e |= (val >= thres); 13619 else 13620 e |= (val <= thres); 13621 } 13622 mtx_lock(&lun->lun_lock); 13623 if (e) { 13624 if (lun->lasttpt == 0 || 13625 time_uptime - lun->lasttpt >= CTL_LBP_UA_PERIOD) { 13626 lun->lasttpt = time_uptime; 13627 ctl_est_ua_all(lun, -1, CTL_UA_THIN_PROV_THRES); 13628 } 13629 } else { 13630 lun->lasttpt = 0; 13631 ctl_clr_ua_all(lun, -1, CTL_UA_THIN_PROV_THRES); 13632 } 13633 mtx_unlock(&lun->lun_lock); 13634 } 13635 mtx_unlock(&softc->ctl_lock); 13636 pause("-", CTL_LBP_PERIOD * hz); 13637 } 13638} 13639 13640static void 13641ctl_enqueue_incoming(union ctl_io *io) 13642{ 13643 struct ctl_softc *softc = control_softc; 13644 struct ctl_thread *thr; 13645 u_int idx; 13646 13647 idx = (io->io_hdr.nexus.targ_port * 127 + 13648 io->io_hdr.nexus.initid) % worker_threads; 13649 thr = &softc->threads[idx]; 13650 mtx_lock(&thr->queue_lock); 13651 STAILQ_INSERT_TAIL(&thr->incoming_queue, &io->io_hdr, links); 13652 mtx_unlock(&thr->queue_lock); 13653 wakeup(thr); 13654} 13655 13656static void 13657ctl_enqueue_rtr(union ctl_io *io) 13658{ 13659 struct ctl_softc *softc = control_softc; 13660 struct ctl_thread *thr; 13661 13662 thr = &softc->threads[io->io_hdr.nexus.targ_mapped_lun % worker_threads]; 13663 mtx_lock(&thr->queue_lock); 13664 STAILQ_INSERT_TAIL(&thr->rtr_queue, &io->io_hdr, links); 13665 mtx_unlock(&thr->queue_lock); 13666 wakeup(thr); 13667} 13668 13669static void 13670ctl_enqueue_done(union ctl_io *io) 13671{ 13672 struct ctl_softc *softc = control_softc; 13673 struct ctl_thread *thr; 13674 13675 thr = &softc->threads[io->io_hdr.nexus.targ_mapped_lun % worker_threads]; 13676 mtx_lock(&thr->queue_lock); 13677 STAILQ_INSERT_TAIL(&thr->done_queue, &io->io_hdr, links); 13678 mtx_unlock(&thr->queue_lock); 13679 wakeup(thr); 13680} 13681 13682#ifdef notyet 13683static void 13684ctl_enqueue_isc(union ctl_io *io) 13685{ 13686 struct ctl_softc *softc = control_softc; 13687 struct ctl_thread *thr; 13688 13689 thr = &softc->threads[io->io_hdr.nexus.targ_mapped_lun % worker_threads]; 13690 mtx_lock(&thr->queue_lock); 13691 STAILQ_INSERT_TAIL(&thr->isc_queue, &io->io_hdr, links); 13692 mtx_unlock(&thr->queue_lock); 13693 wakeup(thr); 13694} 13695 13696/* Initialization and failover */ 13697 13698void 13699ctl_init_isc_msg(void) 13700{ 13701 printf("CTL: Still calling this thing\n"); 13702} 13703 13704/* 13705 * Init component 13706 * Initializes component into configuration defined by bootMode 13707 * (see hasc-sv.c) 13708 * returns hasc_Status: 13709 * OK 13710 * ERROR - fatal error 13711 */ 13712static ctl_ha_comp_status 13713ctl_isc_init(struct ctl_ha_component *c) 13714{ 13715 ctl_ha_comp_status ret = CTL_HA_COMP_STATUS_OK; 13716 13717 c->status = ret; 13718 return ret; 13719} 13720 13721/* Start component 13722 * Starts component in state requested. If component starts successfully, 13723 * it must set its own state to the requestrd state 13724 * When requested state is HASC_STATE_HA, the component may refine it 13725 * by adding _SLAVE or _MASTER flags. 13726 * Currently allowed state transitions are: 13727 * UNKNOWN->HA - initial startup 13728 * UNKNOWN->SINGLE - initial startup when no parter detected 13729 * HA->SINGLE - failover 13730 * returns ctl_ha_comp_status: 13731 * OK - component successfully started in requested state 13732 * FAILED - could not start the requested state, failover may 13733 * be possible 13734 * ERROR - fatal error detected, no future startup possible 13735 */ 13736static ctl_ha_comp_status 13737ctl_isc_start(struct ctl_ha_component *c, ctl_ha_state state) 13738{ 13739 ctl_ha_comp_status ret = CTL_HA_COMP_STATUS_OK; 13740 13741 printf("%s: go\n", __func__); 13742 13743 // UNKNOWN->HA or UNKNOWN->SINGLE (bootstrap) 13744 if (c->state == CTL_HA_STATE_UNKNOWN ) { 13745 control_softc->is_single = 0; 13746 if (ctl_ha_msg_create(CTL_HA_CHAN_CTL, ctl_isc_event_handler) 13747 != CTL_HA_STATUS_SUCCESS) { 13748 printf("ctl_isc_start: ctl_ha_msg_create failed.\n"); 13749 ret = CTL_HA_COMP_STATUS_ERROR; 13750 } 13751 } else if (CTL_HA_STATE_IS_HA(c->state) 13752 && CTL_HA_STATE_IS_SINGLE(state)){ 13753 // HA->SINGLE transition 13754 ctl_failover(); 13755 control_softc->is_single = 1; 13756 } else { 13757 printf("ctl_isc_start:Invalid state transition %X->%X\n", 13758 c->state, state); 13759 ret = CTL_HA_COMP_STATUS_ERROR; 13760 } 13761 if (CTL_HA_STATE_IS_SINGLE(state)) 13762 control_softc->is_single = 1; 13763 13764 c->state = state; 13765 c->status = ret; 13766 return ret; 13767} 13768 13769/* 13770 * Quiesce component 13771 * The component must clear any error conditions (set status to OK) and 13772 * prepare itself to another Start call 13773 * returns ctl_ha_comp_status: 13774 * OK 13775 * ERROR 13776 */ 13777static ctl_ha_comp_status 13778ctl_isc_quiesce(struct ctl_ha_component *c) 13779{ 13780 int ret = CTL_HA_COMP_STATUS_OK; 13781 13782 ctl_pause_rtr = 1; 13783 c->status = ret; 13784 return ret; 13785} 13786 13787struct ctl_ha_component ctl_ha_component_ctlisc = 13788{ 13789 .name = "CTL ISC", 13790 .state = CTL_HA_STATE_UNKNOWN, 13791 .init = ctl_isc_init, 13792 .start = ctl_isc_start, 13793 .quiesce = ctl_isc_quiesce 13794}; 13795#endif 13796 13797/* 13798 * vim: ts=8 13799 */ 13800