ctl.c revision 274333
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: //depot/users/kenm/FreeBSD-test2/sys/cam/ctl/ctl.c#8 $ 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: head/sys/cam/ctl/ctl.c 274333 2014-11-09 22:43:29Z 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 68#include <cam/cam.h> 69#include <cam/scsi/scsi_all.h> 70#include <cam/scsi/scsi_da.h> 71#include <cam/ctl/ctl_io.h> 72#include <cam/ctl/ctl.h> 73#include <cam/ctl/ctl_frontend.h> 74#include <cam/ctl/ctl_frontend_internal.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 */ 113static 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 123static 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 132static 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 146static 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 160static 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 177static 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 193static 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 210static 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 226static 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 242static 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 258static 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 270static 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 282static 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 291static 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 302static 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 328static 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 int persis_offset; 359static uint8_t ctl_pause_rtr; 360static int ctl_is_single = 1; 361 362SYSCTL_NODE(_kern_cam, OID_AUTO, ctl, CTLFLAG_RD, 0, "CAM Target Layer"); 363static int worker_threads = -1; 364SYSCTL_INT(_kern_cam_ctl, OID_AUTO, worker_threads, CTLFLAG_RDTUN, 365 &worker_threads, 1, "Number of worker threads"); 366static int ctl_debug = CTL_DEBUG_NONE; 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 378static void ctl_isc_event_handler(ctl_ha_channel chanel, ctl_ha_event event, 379 int param); 380static void ctl_copy_sense_data(union ctl_ha_msg *src, union ctl_io *dest); 381static int ctl_init(void); 382void ctl_shutdown(void); 383static int ctl_open(struct cdev *dev, int flags, int fmt, struct thread *td); 384static int ctl_close(struct cdev *dev, int flags, int fmt, struct thread *td); 385static void ctl_ioctl_online(void *arg); 386static void ctl_ioctl_offline(void *arg); 387static int ctl_ioctl_lun_enable(void *arg, struct ctl_id targ_id, int lun_id); 388static int ctl_ioctl_lun_disable(void *arg, struct ctl_id targ_id, int lun_id); 389static int ctl_ioctl_do_datamove(struct ctl_scsiio *ctsio); 390static int ctl_serialize_other_sc_cmd(struct ctl_scsiio *ctsio); 391static int ctl_ioctl_submit_wait(union ctl_io *io); 392static void ctl_ioctl_datamove(union ctl_io *io); 393static void ctl_ioctl_done(union ctl_io *io); 394static void ctl_ioctl_hard_startstop_callback(void *arg, 395 struct cfi_metatask *metatask); 396static void ctl_ioctl_bbrread_callback(void *arg,struct cfi_metatask *metatask); 397static int ctl_ioctl_fill_ooa(struct ctl_lun *lun, uint32_t *cur_fill_num, 398 struct ctl_ooa *ooa_hdr, 399 struct ctl_ooa_entry *kern_entries); 400static int ctl_ioctl(struct cdev *dev, u_long cmd, caddr_t addr, int flag, 401 struct thread *td); 402static uint32_t ctl_map_lun(int port_num, uint32_t lun); 403static uint32_t ctl_map_lun_back(int port_num, uint32_t lun); 404#ifdef unused 405static union ctl_io *ctl_malloc_io(ctl_io_type io_type, uint32_t targ_port, 406 uint32_t targ_target, uint32_t targ_lun, 407 int can_wait); 408static void ctl_kfree_io(union ctl_io *io); 409#endif /* unused */ 410static int ctl_alloc_lun(struct ctl_softc *ctl_softc, struct ctl_lun *lun, 411 struct ctl_be_lun *be_lun, struct ctl_id target_id); 412static int ctl_free_lun(struct ctl_lun *lun); 413static void ctl_create_lun(struct ctl_be_lun *be_lun); 414/** 415static void ctl_failover_change_pages(struct ctl_softc *softc, 416 struct ctl_scsiio *ctsio, int master); 417**/ 418 419static int ctl_do_mode_select(union ctl_io *io); 420static int ctl_pro_preempt(struct ctl_softc *softc, struct ctl_lun *lun, 421 uint64_t res_key, uint64_t sa_res_key, 422 uint8_t type, uint32_t residx, 423 struct ctl_scsiio *ctsio, 424 struct scsi_per_res_out *cdb, 425 struct scsi_per_res_out_parms* param); 426static void ctl_pro_preempt_other(struct ctl_lun *lun, 427 union ctl_ha_msg *msg); 428static void ctl_hndl_per_res_out_on_other_sc(union ctl_ha_msg *msg); 429static int ctl_inquiry_evpd_supported(struct ctl_scsiio *ctsio, int alloc_len); 430static int ctl_inquiry_evpd_serial(struct ctl_scsiio *ctsio, int alloc_len); 431static int ctl_inquiry_evpd_devid(struct ctl_scsiio *ctsio, int alloc_len); 432static int ctl_inquiry_evpd_eid(struct ctl_scsiio *ctsio, int alloc_len); 433static int ctl_inquiry_evpd_mpp(struct ctl_scsiio *ctsio, int alloc_len); 434static int ctl_inquiry_evpd_scsi_ports(struct ctl_scsiio *ctsio, 435 int alloc_len); 436static int ctl_inquiry_evpd_block_limits(struct ctl_scsiio *ctsio, 437 int alloc_len); 438static int ctl_inquiry_evpd_bdc(struct ctl_scsiio *ctsio, int alloc_len); 439static int ctl_inquiry_evpd_lbp(struct ctl_scsiio *ctsio, int alloc_len); 440static int ctl_inquiry_evpd(struct ctl_scsiio *ctsio); 441static int ctl_inquiry_std(struct ctl_scsiio *ctsio); 442static int ctl_get_lba_len(union ctl_io *io, uint64_t *lba, uint64_t *len); 443static ctl_action ctl_extent_check(union ctl_io *io1, union ctl_io *io2); 444static ctl_action ctl_check_for_blockage(struct ctl_lun *lun, 445 union ctl_io *pending_io, union ctl_io *ooa_io); 446static ctl_action ctl_check_ooa(struct ctl_lun *lun, union ctl_io *pending_io, 447 union ctl_io *starting_io); 448static int ctl_check_blocked(struct ctl_lun *lun); 449static int ctl_scsiio_lun_check(struct ctl_softc *ctl_softc, 450 struct ctl_lun *lun, 451 const struct ctl_cmd_entry *entry, 452 struct ctl_scsiio *ctsio); 453//static int ctl_check_rtr(union ctl_io *pending_io, struct ctl_softc *softc); 454static void ctl_failover(void); 455static int ctl_scsiio_precheck(struct ctl_softc *ctl_softc, 456 struct ctl_scsiio *ctsio); 457static int ctl_scsiio(struct ctl_scsiio *ctsio); 458 459static int ctl_bus_reset(struct ctl_softc *ctl_softc, union ctl_io *io); 460static int ctl_target_reset(struct ctl_softc *ctl_softc, union ctl_io *io, 461 ctl_ua_type ua_type); 462static int ctl_lun_reset(struct ctl_lun *lun, union ctl_io *io, 463 ctl_ua_type ua_type); 464static int ctl_abort_task(union ctl_io *io); 465static int ctl_abort_task_set(union ctl_io *io); 466static int ctl_i_t_nexus_reset(union ctl_io *io); 467static void ctl_run_task(union ctl_io *io); 468#ifdef CTL_IO_DELAY 469static void ctl_datamove_timer_wakeup(void *arg); 470static void ctl_done_timer_wakeup(void *arg); 471#endif /* CTL_IO_DELAY */ 472 473static void ctl_send_datamove_done(union ctl_io *io, int have_lock); 474static void ctl_datamove_remote_write_cb(struct ctl_ha_dt_req *rq); 475static int ctl_datamove_remote_dm_write_cb(union ctl_io *io); 476static void ctl_datamove_remote_write(union ctl_io *io); 477static int ctl_datamove_remote_dm_read_cb(union ctl_io *io); 478static void ctl_datamove_remote_read_cb(struct ctl_ha_dt_req *rq); 479static int ctl_datamove_remote_sgl_setup(union ctl_io *io); 480static int ctl_datamove_remote_xfer(union ctl_io *io, unsigned command, 481 ctl_ha_dt_cb callback); 482static void ctl_datamove_remote_read(union ctl_io *io); 483static void ctl_datamove_remote(union ctl_io *io); 484static int ctl_process_done(union ctl_io *io); 485static void ctl_lun_thread(void *arg); 486static void ctl_thresh_thread(void *arg); 487static void ctl_work_thread(void *arg); 488static void ctl_enqueue_incoming(union ctl_io *io); 489static void ctl_enqueue_rtr(union ctl_io *io); 490static void ctl_enqueue_done(union ctl_io *io); 491static void ctl_enqueue_isc(union ctl_io *io); 492static const struct ctl_cmd_entry * 493 ctl_get_cmd_entry(struct ctl_scsiio *ctsio, int *sa); 494static const struct ctl_cmd_entry * 495 ctl_validate_command(struct ctl_scsiio *ctsio); 496static int ctl_cmd_applicable(uint8_t lun_type, 497 const struct ctl_cmd_entry *entry); 498 499/* 500 * Load the serialization table. This isn't very pretty, but is probably 501 * the easiest way to do it. 502 */ 503#include "ctl_ser_table.c" 504 505/* 506 * We only need to define open, close and ioctl routines for this driver. 507 */ 508static struct cdevsw ctl_cdevsw = { 509 .d_version = D_VERSION, 510 .d_flags = 0, 511 .d_open = ctl_open, 512 .d_close = ctl_close, 513 .d_ioctl = ctl_ioctl, 514 .d_name = "ctl", 515}; 516 517 518MALLOC_DEFINE(M_CTL, "ctlmem", "Memory used for CTL"); 519MALLOC_DEFINE(M_CTLIO, "ctlio", "Memory used for CTL requests"); 520 521static int ctl_module_event_handler(module_t, int /*modeventtype_t*/, void *); 522 523static moduledata_t ctl_moduledata = { 524 "ctl", 525 ctl_module_event_handler, 526 NULL 527}; 528 529DECLARE_MODULE(ctl, ctl_moduledata, SI_SUB_CONFIGURE, SI_ORDER_THIRD); 530MODULE_VERSION(ctl, 1); 531 532static struct ctl_frontend ioctl_frontend = 533{ 534 .name = "ioctl", 535}; 536 537static void 538ctl_isc_handler_finish_xfer(struct ctl_softc *ctl_softc, 539 union ctl_ha_msg *msg_info) 540{ 541 struct ctl_scsiio *ctsio; 542 543 if (msg_info->hdr.original_sc == NULL) { 544 printf("%s: original_sc == NULL!\n", __func__); 545 /* XXX KDM now what? */ 546 return; 547 } 548 549 ctsio = &msg_info->hdr.original_sc->scsiio; 550 ctsio->io_hdr.flags |= CTL_FLAG_IO_ACTIVE; 551 ctsio->io_hdr.msg_type = CTL_MSG_FINISH_IO; 552 ctsio->io_hdr.status = msg_info->hdr.status; 553 ctsio->scsi_status = msg_info->scsi.scsi_status; 554 ctsio->sense_len = msg_info->scsi.sense_len; 555 ctsio->sense_residual = msg_info->scsi.sense_residual; 556 ctsio->residual = msg_info->scsi.residual; 557 memcpy(&ctsio->sense_data, &msg_info->scsi.sense_data, 558 sizeof(ctsio->sense_data)); 559 memcpy(&ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN].bytes, 560 &msg_info->scsi.lbalen, sizeof(msg_info->scsi.lbalen)); 561 ctl_enqueue_isc((union ctl_io *)ctsio); 562} 563 564static void 565ctl_isc_handler_finish_ser_only(struct ctl_softc *ctl_softc, 566 union ctl_ha_msg *msg_info) 567{ 568 struct ctl_scsiio *ctsio; 569 570 if (msg_info->hdr.serializing_sc == NULL) { 571 printf("%s: serializing_sc == NULL!\n", __func__); 572 /* XXX KDM now what? */ 573 return; 574 } 575 576 ctsio = &msg_info->hdr.serializing_sc->scsiio; 577#if 0 578 /* 579 * Attempt to catch the situation where an I/O has 580 * been freed, and we're using it again. 581 */ 582 if (ctsio->io_hdr.io_type == 0xff) { 583 union ctl_io *tmp_io; 584 tmp_io = (union ctl_io *)ctsio; 585 printf("%s: %p use after free!\n", __func__, 586 ctsio); 587 printf("%s: type %d msg %d cdb %x iptl: " 588 "%d:%d:%d:%d tag 0x%04x " 589 "flag %#x status %x\n", 590 __func__, 591 tmp_io->io_hdr.io_type, 592 tmp_io->io_hdr.msg_type, 593 tmp_io->scsiio.cdb[0], 594 tmp_io->io_hdr.nexus.initid.id, 595 tmp_io->io_hdr.nexus.targ_port, 596 tmp_io->io_hdr.nexus.targ_target.id, 597 tmp_io->io_hdr.nexus.targ_lun, 598 (tmp_io->io_hdr.io_type == 599 CTL_IO_TASK) ? 600 tmp_io->taskio.tag_num : 601 tmp_io->scsiio.tag_num, 602 tmp_io->io_hdr.flags, 603 tmp_io->io_hdr.status); 604 } 605#endif 606 ctsio->io_hdr.msg_type = CTL_MSG_FINISH_IO; 607 ctl_enqueue_isc((union ctl_io *)ctsio); 608} 609 610/* 611 * ISC (Inter Shelf Communication) event handler. Events from the HA 612 * subsystem come in here. 613 */ 614static void 615ctl_isc_event_handler(ctl_ha_channel channel, ctl_ha_event event, int param) 616{ 617 struct ctl_softc *ctl_softc; 618 union ctl_io *io; 619 struct ctl_prio *presio; 620 ctl_ha_status isc_status; 621 622 ctl_softc = control_softc; 623 io = NULL; 624 625 626#if 0 627 printf("CTL: Isc Msg event %d\n", event); 628#endif 629 if (event == CTL_HA_EVT_MSG_RECV) { 630 union ctl_ha_msg msg_info; 631 632 isc_status = ctl_ha_msg_recv(CTL_HA_CHAN_CTL, &msg_info, 633 sizeof(msg_info), /*wait*/ 0); 634#if 0 635 printf("CTL: msg_type %d\n", msg_info.msg_type); 636#endif 637 if (isc_status != 0) { 638 printf("Error receiving message, status = %d\n", 639 isc_status); 640 return; 641 } 642 643 switch (msg_info.hdr.msg_type) { 644 case CTL_MSG_SERIALIZE: 645#if 0 646 printf("Serialize\n"); 647#endif 648 io = ctl_alloc_io((void *)ctl_softc->othersc_pool); 649 if (io == NULL) { 650 printf("ctl_isc_event_handler: can't allocate " 651 "ctl_io!\n"); 652 /* Bad Juju */ 653 /* Need to set busy and send msg back */ 654 msg_info.hdr.msg_type = CTL_MSG_BAD_JUJU; 655 msg_info.hdr.status = CTL_SCSI_ERROR; 656 msg_info.scsi.scsi_status = SCSI_STATUS_BUSY; 657 msg_info.scsi.sense_len = 0; 658 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 659 sizeof(msg_info), 0) > CTL_HA_STATUS_SUCCESS){ 660 } 661 goto bailout; 662 } 663 ctl_zero_io(io); 664 // populate ctsio from msg_info 665 io->io_hdr.io_type = CTL_IO_SCSI; 666 io->io_hdr.msg_type = CTL_MSG_SERIALIZE; 667 io->io_hdr.original_sc = msg_info.hdr.original_sc; 668#if 0 669 printf("pOrig %x\n", (int)msg_info.original_sc); 670#endif 671 io->io_hdr.flags |= CTL_FLAG_FROM_OTHER_SC | 672 CTL_FLAG_IO_ACTIVE; 673 /* 674 * If we're in serialization-only mode, we don't 675 * want to go through full done processing. Thus 676 * the COPY flag. 677 * 678 * XXX KDM add another flag that is more specific. 679 */ 680 if (ctl_softc->ha_mode == CTL_HA_MODE_SER_ONLY) 681 io->io_hdr.flags |= CTL_FLAG_INT_COPY; 682 io->io_hdr.nexus = msg_info.hdr.nexus; 683#if 0 684 printf("targ %d, port %d, iid %d, lun %d\n", 685 io->io_hdr.nexus.targ_target.id, 686 io->io_hdr.nexus.targ_port, 687 io->io_hdr.nexus.initid.id, 688 io->io_hdr.nexus.targ_lun); 689#endif 690 io->scsiio.tag_num = msg_info.scsi.tag_num; 691 io->scsiio.tag_type = msg_info.scsi.tag_type; 692 memcpy(io->scsiio.cdb, msg_info.scsi.cdb, 693 CTL_MAX_CDBLEN); 694 if (ctl_softc->ha_mode == CTL_HA_MODE_XFER) { 695 const struct ctl_cmd_entry *entry; 696 697 entry = ctl_get_cmd_entry(&io->scsiio, NULL); 698 io->io_hdr.flags &= ~CTL_FLAG_DATA_MASK; 699 io->io_hdr.flags |= 700 entry->flags & CTL_FLAG_DATA_MASK; 701 } 702 ctl_enqueue_isc(io); 703 break; 704 705 /* Performed on the Originating SC, XFER mode only */ 706 case CTL_MSG_DATAMOVE: { 707 struct ctl_sg_entry *sgl; 708 int i, j; 709 710 io = msg_info.hdr.original_sc; 711 if (io == NULL) { 712 printf("%s: original_sc == NULL!\n", __func__); 713 /* XXX KDM do something here */ 714 break; 715 } 716 io->io_hdr.msg_type = CTL_MSG_DATAMOVE; 717 io->io_hdr.flags |= CTL_FLAG_IO_ACTIVE; 718 /* 719 * Keep track of this, we need to send it back over 720 * when the datamove is complete. 721 */ 722 io->io_hdr.serializing_sc = msg_info.hdr.serializing_sc; 723 724 if (msg_info.dt.sg_sequence == 0) { 725 /* 726 * XXX KDM we use the preallocated S/G list 727 * here, but we'll need to change this to 728 * dynamic allocation if we need larger S/G 729 * lists. 730 */ 731 if (msg_info.dt.kern_sg_entries > 732 sizeof(io->io_hdr.remote_sglist) / 733 sizeof(io->io_hdr.remote_sglist[0])) { 734 printf("%s: number of S/G entries " 735 "needed %u > allocated num %zd\n", 736 __func__, 737 msg_info.dt.kern_sg_entries, 738 sizeof(io->io_hdr.remote_sglist)/ 739 sizeof(io->io_hdr.remote_sglist[0])); 740 741 /* 742 * XXX KDM send a message back to 743 * the other side to shut down the 744 * DMA. The error will come back 745 * through via the normal channel. 746 */ 747 break; 748 } 749 sgl = io->io_hdr.remote_sglist; 750 memset(sgl, 0, 751 sizeof(io->io_hdr.remote_sglist)); 752 753 io->scsiio.kern_data_ptr = (uint8_t *)sgl; 754 755 io->scsiio.kern_sg_entries = 756 msg_info.dt.kern_sg_entries; 757 io->scsiio.rem_sg_entries = 758 msg_info.dt.kern_sg_entries; 759 io->scsiio.kern_data_len = 760 msg_info.dt.kern_data_len; 761 io->scsiio.kern_total_len = 762 msg_info.dt.kern_total_len; 763 io->scsiio.kern_data_resid = 764 msg_info.dt.kern_data_resid; 765 io->scsiio.kern_rel_offset = 766 msg_info.dt.kern_rel_offset; 767 /* 768 * Clear out per-DMA flags. 769 */ 770 io->io_hdr.flags &= ~CTL_FLAG_RDMA_MASK; 771 /* 772 * Add per-DMA flags that are set for this 773 * particular DMA request. 774 */ 775 io->io_hdr.flags |= msg_info.dt.flags & 776 CTL_FLAG_RDMA_MASK; 777 } else 778 sgl = (struct ctl_sg_entry *) 779 io->scsiio.kern_data_ptr; 780 781 for (i = msg_info.dt.sent_sg_entries, j = 0; 782 i < (msg_info.dt.sent_sg_entries + 783 msg_info.dt.cur_sg_entries); i++, j++) { 784 sgl[i].addr = msg_info.dt.sg_list[j].addr; 785 sgl[i].len = msg_info.dt.sg_list[j].len; 786 787#if 0 788 printf("%s: L: %p,%d -> %p,%d j=%d, i=%d\n", 789 __func__, 790 msg_info.dt.sg_list[j].addr, 791 msg_info.dt.sg_list[j].len, 792 sgl[i].addr, sgl[i].len, j, i); 793#endif 794 } 795#if 0 796 memcpy(&sgl[msg_info.dt.sent_sg_entries], 797 msg_info.dt.sg_list, 798 sizeof(*sgl) * msg_info.dt.cur_sg_entries); 799#endif 800 801 /* 802 * If this is the last piece of the I/O, we've got 803 * the full S/G list. Queue processing in the thread. 804 * Otherwise wait for the next piece. 805 */ 806 if (msg_info.dt.sg_last != 0) 807 ctl_enqueue_isc(io); 808 break; 809 } 810 /* Performed on the Serializing (primary) SC, XFER mode only */ 811 case CTL_MSG_DATAMOVE_DONE: { 812 if (msg_info.hdr.serializing_sc == NULL) { 813 printf("%s: serializing_sc == NULL!\n", 814 __func__); 815 /* XXX KDM now what? */ 816 break; 817 } 818 /* 819 * We grab the sense information here in case 820 * there was a failure, so we can return status 821 * back to the initiator. 822 */ 823 io = msg_info.hdr.serializing_sc; 824 io->io_hdr.msg_type = CTL_MSG_DATAMOVE_DONE; 825 io->io_hdr.status = msg_info.hdr.status; 826 io->scsiio.scsi_status = msg_info.scsi.scsi_status; 827 io->scsiio.sense_len = msg_info.scsi.sense_len; 828 io->scsiio.sense_residual =msg_info.scsi.sense_residual; 829 io->io_hdr.port_status = msg_info.scsi.fetd_status; 830 io->scsiio.residual = msg_info.scsi.residual; 831 memcpy(&io->scsiio.sense_data,&msg_info.scsi.sense_data, 832 sizeof(io->scsiio.sense_data)); 833 ctl_enqueue_isc(io); 834 break; 835 } 836 837 /* Preformed on Originating SC, SER_ONLY mode */ 838 case CTL_MSG_R2R: 839 io = msg_info.hdr.original_sc; 840 if (io == NULL) { 841 printf("%s: Major Bummer\n", __func__); 842 return; 843 } else { 844#if 0 845 printf("pOrig %x\n",(int) ctsio); 846#endif 847 } 848 io->io_hdr.msg_type = CTL_MSG_R2R; 849 io->io_hdr.serializing_sc = msg_info.hdr.serializing_sc; 850 ctl_enqueue_isc(io); 851 break; 852 853 /* 854 * Performed on Serializing(i.e. primary SC) SC in SER_ONLY 855 * mode. 856 * Performed on the Originating (i.e. secondary) SC in XFER 857 * mode 858 */ 859 case CTL_MSG_FINISH_IO: 860 if (ctl_softc->ha_mode == CTL_HA_MODE_XFER) 861 ctl_isc_handler_finish_xfer(ctl_softc, 862 &msg_info); 863 else 864 ctl_isc_handler_finish_ser_only(ctl_softc, 865 &msg_info); 866 break; 867 868 /* Preformed on Originating SC */ 869 case CTL_MSG_BAD_JUJU: 870 io = msg_info.hdr.original_sc; 871 if (io == NULL) { 872 printf("%s: Bad JUJU!, original_sc is NULL!\n", 873 __func__); 874 break; 875 } 876 ctl_copy_sense_data(&msg_info, io); 877 /* 878 * IO should have already been cleaned up on other 879 * SC so clear this flag so we won't send a message 880 * back to finish the IO there. 881 */ 882 io->io_hdr.flags &= ~CTL_FLAG_SENT_2OTHER_SC; 883 io->io_hdr.flags |= CTL_FLAG_IO_ACTIVE; 884 885 /* io = msg_info.hdr.serializing_sc; */ 886 io->io_hdr.msg_type = CTL_MSG_BAD_JUJU; 887 ctl_enqueue_isc(io); 888 break; 889 890 /* Handle resets sent from the other side */ 891 case CTL_MSG_MANAGE_TASKS: { 892 struct ctl_taskio *taskio; 893 taskio = (struct ctl_taskio *)ctl_alloc_io( 894 (void *)ctl_softc->othersc_pool); 895 if (taskio == NULL) { 896 printf("ctl_isc_event_handler: can't allocate " 897 "ctl_io!\n"); 898 /* Bad Juju */ 899 /* should I just call the proper reset func 900 here??? */ 901 goto bailout; 902 } 903 ctl_zero_io((union ctl_io *)taskio); 904 taskio->io_hdr.io_type = CTL_IO_TASK; 905 taskio->io_hdr.flags |= CTL_FLAG_FROM_OTHER_SC; 906 taskio->io_hdr.nexus = msg_info.hdr.nexus; 907 taskio->task_action = msg_info.task.task_action; 908 taskio->tag_num = msg_info.task.tag_num; 909 taskio->tag_type = msg_info.task.tag_type; 910#ifdef CTL_TIME_IO 911 taskio->io_hdr.start_time = time_uptime; 912 getbintime(&taskio->io_hdr.start_bt); 913#if 0 914 cs_prof_gettime(&taskio->io_hdr.start_ticks); 915#endif 916#endif /* CTL_TIME_IO */ 917 ctl_run_task((union ctl_io *)taskio); 918 break; 919 } 920 /* Persistent Reserve action which needs attention */ 921 case CTL_MSG_PERS_ACTION: 922 presio = (struct ctl_prio *)ctl_alloc_io( 923 (void *)ctl_softc->othersc_pool); 924 if (presio == NULL) { 925 printf("ctl_isc_event_handler: can't allocate " 926 "ctl_io!\n"); 927 /* Bad Juju */ 928 /* Need to set busy and send msg back */ 929 goto bailout; 930 } 931 ctl_zero_io((union ctl_io *)presio); 932 presio->io_hdr.msg_type = CTL_MSG_PERS_ACTION; 933 presio->pr_msg = msg_info.pr; 934 ctl_enqueue_isc((union ctl_io *)presio); 935 break; 936 case CTL_MSG_SYNC_FE: 937 rcv_sync_msg = 1; 938 break; 939 default: 940 printf("How did I get here?\n"); 941 } 942 } else if (event == CTL_HA_EVT_MSG_SENT) { 943 if (param != CTL_HA_STATUS_SUCCESS) { 944 printf("Bad status from ctl_ha_msg_send status %d\n", 945 param); 946 } 947 return; 948 } else if (event == CTL_HA_EVT_DISCONNECT) { 949 printf("CTL: Got a disconnect from Isc\n"); 950 return; 951 } else { 952 printf("ctl_isc_event_handler: Unknown event %d\n", event); 953 return; 954 } 955 956bailout: 957 return; 958} 959 960static void 961ctl_copy_sense_data(union ctl_ha_msg *src, union ctl_io *dest) 962{ 963 struct scsi_sense_data *sense; 964 965 sense = &dest->scsiio.sense_data; 966 bcopy(&src->scsi.sense_data, sense, sizeof(*sense)); 967 dest->scsiio.scsi_status = src->scsi.scsi_status; 968 dest->scsiio.sense_len = src->scsi.sense_len; 969 dest->io_hdr.status = src->hdr.status; 970} 971 972static int 973ctl_init(void) 974{ 975 struct ctl_softc *softc; 976 struct ctl_io_pool *internal_pool, *emergency_pool, *other_pool; 977 struct ctl_port *port; 978 uint8_t sc_id =0; 979 int i, error, retval; 980 //int isc_retval; 981 982 retval = 0; 983 ctl_pause_rtr = 0; 984 rcv_sync_msg = 0; 985 986 control_softc = malloc(sizeof(*control_softc), M_DEVBUF, 987 M_WAITOK | M_ZERO); 988 softc = control_softc; 989 990 softc->dev = make_dev(&ctl_cdevsw, 0, UID_ROOT, GID_OPERATOR, 0600, 991 "cam/ctl"); 992 993 softc->dev->si_drv1 = softc; 994 995 /* 996 * By default, return a "bad LUN" peripheral qualifier for unknown 997 * LUNs. The user can override this default using the tunable or 998 * sysctl. See the comment in ctl_inquiry_std() for more details. 999 */ 1000 softc->inquiry_pq_no_lun = 1; 1001 TUNABLE_INT_FETCH("kern.cam.ctl.inquiry_pq_no_lun", 1002 &softc->inquiry_pq_no_lun); 1003 sysctl_ctx_init(&softc->sysctl_ctx); 1004 softc->sysctl_tree = SYSCTL_ADD_NODE(&softc->sysctl_ctx, 1005 SYSCTL_STATIC_CHILDREN(_kern_cam), OID_AUTO, "ctl", 1006 CTLFLAG_RD, 0, "CAM Target Layer"); 1007 1008 if (softc->sysctl_tree == NULL) { 1009 printf("%s: unable to allocate sysctl tree\n", __func__); 1010 destroy_dev(softc->dev); 1011 free(control_softc, M_DEVBUF); 1012 control_softc = NULL; 1013 return (ENOMEM); 1014 } 1015 1016 SYSCTL_ADD_INT(&softc->sysctl_ctx, 1017 SYSCTL_CHILDREN(softc->sysctl_tree), OID_AUTO, 1018 "inquiry_pq_no_lun", CTLFLAG_RW, 1019 &softc->inquiry_pq_no_lun, 0, 1020 "Report no lun possible for invalid LUNs"); 1021 1022 mtx_init(&softc->ctl_lock, "CTL mutex", NULL, MTX_DEF); 1023 mtx_init(&softc->pool_lock, "CTL pool mutex", NULL, MTX_DEF); 1024 softc->open_count = 0; 1025 1026 /* 1027 * Default to actually sending a SYNCHRONIZE CACHE command down to 1028 * the drive. 1029 */ 1030 softc->flags = CTL_FLAG_REAL_SYNC; 1031 1032 /* 1033 * In Copan's HA scheme, the "master" and "slave" roles are 1034 * figured out through the slot the controller is in. Although it 1035 * is an active/active system, someone has to be in charge. 1036 */ 1037#ifdef NEEDTOPORT 1038 scmicro_rw(SCMICRO_GET_SHELF_ID, &sc_id); 1039#endif 1040 1041 if (sc_id == 0) { 1042 softc->flags |= CTL_FLAG_MASTER_SHELF; 1043 persis_offset = 0; 1044 } else 1045 persis_offset = CTL_MAX_INITIATORS; 1046 1047 /* 1048 * XXX KDM need to figure out where we want to get our target ID 1049 * and WWID. Is it different on each port? 1050 */ 1051 softc->target.id = 0; 1052 softc->target.wwid[0] = 0x12345678; 1053 softc->target.wwid[1] = 0x87654321; 1054 STAILQ_INIT(&softc->lun_list); 1055 STAILQ_INIT(&softc->pending_lun_queue); 1056 STAILQ_INIT(&softc->fe_list); 1057 STAILQ_INIT(&softc->port_list); 1058 STAILQ_INIT(&softc->be_list); 1059 STAILQ_INIT(&softc->io_pools); 1060 ctl_tpc_init(softc); 1061 1062 if (ctl_pool_create(softc, CTL_POOL_INTERNAL, CTL_POOL_ENTRIES_INTERNAL, 1063 &internal_pool)!= 0){ 1064 printf("ctl: can't allocate %d entry internal pool, " 1065 "exiting\n", CTL_POOL_ENTRIES_INTERNAL); 1066 return (ENOMEM); 1067 } 1068 1069 if (ctl_pool_create(softc, CTL_POOL_EMERGENCY, 1070 CTL_POOL_ENTRIES_EMERGENCY, &emergency_pool) != 0) { 1071 printf("ctl: can't allocate %d entry emergency pool, " 1072 "exiting\n", CTL_POOL_ENTRIES_EMERGENCY); 1073 ctl_pool_free(internal_pool); 1074 return (ENOMEM); 1075 } 1076 1077 if (ctl_pool_create(softc, CTL_POOL_4OTHERSC, CTL_POOL_ENTRIES_OTHER_SC, 1078 &other_pool) != 0) 1079 { 1080 printf("ctl: can't allocate %d entry other SC pool, " 1081 "exiting\n", CTL_POOL_ENTRIES_OTHER_SC); 1082 ctl_pool_free(internal_pool); 1083 ctl_pool_free(emergency_pool); 1084 return (ENOMEM); 1085 } 1086 1087 softc->internal_pool = internal_pool; 1088 softc->emergency_pool = emergency_pool; 1089 softc->othersc_pool = other_pool; 1090 1091 if (worker_threads <= 0) 1092 worker_threads = max(1, mp_ncpus / 4); 1093 if (worker_threads > CTL_MAX_THREADS) 1094 worker_threads = CTL_MAX_THREADS; 1095 1096 for (i = 0; i < worker_threads; i++) { 1097 struct ctl_thread *thr = &softc->threads[i]; 1098 1099 mtx_init(&thr->queue_lock, "CTL queue mutex", NULL, MTX_DEF); 1100 thr->ctl_softc = softc; 1101 STAILQ_INIT(&thr->incoming_queue); 1102 STAILQ_INIT(&thr->rtr_queue); 1103 STAILQ_INIT(&thr->done_queue); 1104 STAILQ_INIT(&thr->isc_queue); 1105 1106 error = kproc_kthread_add(ctl_work_thread, thr, 1107 &softc->ctl_proc, &thr->thread, 0, 0, "ctl", "work%d", i); 1108 if (error != 0) { 1109 printf("error creating CTL work thread!\n"); 1110 ctl_pool_free(internal_pool); 1111 ctl_pool_free(emergency_pool); 1112 ctl_pool_free(other_pool); 1113 return (error); 1114 } 1115 } 1116 error = kproc_kthread_add(ctl_lun_thread, softc, 1117 &softc->ctl_proc, NULL, 0, 0, "ctl", "lun"); 1118 if (error != 0) { 1119 printf("error creating CTL lun thread!\n"); 1120 ctl_pool_free(internal_pool); 1121 ctl_pool_free(emergency_pool); 1122 ctl_pool_free(other_pool); 1123 return (error); 1124 } 1125 error = kproc_kthread_add(ctl_thresh_thread, softc, 1126 &softc->ctl_proc, NULL, 0, 0, "ctl", "thresh"); 1127 if (error != 0) { 1128 printf("error creating CTL threshold thread!\n"); 1129 ctl_pool_free(internal_pool); 1130 ctl_pool_free(emergency_pool); 1131 ctl_pool_free(other_pool); 1132 return (error); 1133 } 1134 if (bootverbose) 1135 printf("ctl: CAM Target Layer loaded\n"); 1136 1137 /* 1138 * Initialize the ioctl front end. 1139 */ 1140 ctl_frontend_register(&ioctl_frontend); 1141 port = &softc->ioctl_info.port; 1142 port->frontend = &ioctl_frontend; 1143 sprintf(softc->ioctl_info.port_name, "ioctl"); 1144 port->port_type = CTL_PORT_IOCTL; 1145 port->num_requested_ctl_io = 100; 1146 port->port_name = softc->ioctl_info.port_name; 1147 port->port_online = ctl_ioctl_online; 1148 port->port_offline = ctl_ioctl_offline; 1149 port->onoff_arg = &softc->ioctl_info; 1150 port->lun_enable = ctl_ioctl_lun_enable; 1151 port->lun_disable = ctl_ioctl_lun_disable; 1152 port->targ_lun_arg = &softc->ioctl_info; 1153 port->fe_datamove = ctl_ioctl_datamove; 1154 port->fe_done = ctl_ioctl_done; 1155 port->max_targets = 15; 1156 port->max_target_id = 15; 1157 1158 if (ctl_port_register(&softc->ioctl_info.port, 1159 (softc->flags & CTL_FLAG_MASTER_SHELF)) != 0) { 1160 printf("ctl: ioctl front end registration failed, will " 1161 "continue anyway\n"); 1162 } 1163 1164#ifdef CTL_IO_DELAY 1165 if (sizeof(struct callout) > CTL_TIMER_BYTES) { 1166 printf("sizeof(struct callout) %zd > CTL_TIMER_BYTES %zd\n", 1167 sizeof(struct callout), CTL_TIMER_BYTES); 1168 return (EINVAL); 1169 } 1170#endif /* CTL_IO_DELAY */ 1171 1172 return (0); 1173} 1174 1175void 1176ctl_shutdown(void) 1177{ 1178 struct ctl_softc *softc; 1179 struct ctl_lun *lun, *next_lun; 1180 struct ctl_io_pool *pool; 1181 1182 softc = (struct ctl_softc *)control_softc; 1183 1184 if (ctl_port_deregister(&softc->ioctl_info.port) != 0) 1185 printf("ctl: ioctl front end deregistration failed\n"); 1186 1187 mtx_lock(&softc->ctl_lock); 1188 1189 /* 1190 * Free up each LUN. 1191 */ 1192 for (lun = STAILQ_FIRST(&softc->lun_list); lun != NULL; lun = next_lun){ 1193 next_lun = STAILQ_NEXT(lun, links); 1194 ctl_free_lun(lun); 1195 } 1196 1197 mtx_unlock(&softc->ctl_lock); 1198 1199 ctl_frontend_deregister(&ioctl_frontend); 1200 1201 /* 1202 * This will rip the rug out from under any FETDs or anyone else 1203 * that has a pool allocated. Since we increment our module 1204 * refcount any time someone outside the main CTL module allocates 1205 * a pool, we shouldn't have any problems here. The user won't be 1206 * able to unload the CTL module until client modules have 1207 * successfully unloaded. 1208 */ 1209 while ((pool = STAILQ_FIRST(&softc->io_pools)) != NULL) 1210 ctl_pool_free(pool); 1211 1212#if 0 1213 ctl_shutdown_thread(softc->work_thread); 1214 mtx_destroy(&softc->queue_lock); 1215#endif 1216 1217 ctl_tpc_shutdown(softc); 1218 mtx_destroy(&softc->pool_lock); 1219 mtx_destroy(&softc->ctl_lock); 1220 1221 destroy_dev(softc->dev); 1222 1223 sysctl_ctx_free(&softc->sysctl_ctx); 1224 1225 free(control_softc, M_DEVBUF); 1226 control_softc = NULL; 1227 1228 if (bootverbose) 1229 printf("ctl: CAM Target Layer unloaded\n"); 1230} 1231 1232static int 1233ctl_module_event_handler(module_t mod, int what, void *arg) 1234{ 1235 1236 switch (what) { 1237 case MOD_LOAD: 1238 return (ctl_init()); 1239 case MOD_UNLOAD: 1240 return (EBUSY); 1241 default: 1242 return (EOPNOTSUPP); 1243 } 1244} 1245 1246/* 1247 * XXX KDM should we do some access checks here? Bump a reference count to 1248 * prevent a CTL module from being unloaded while someone has it open? 1249 */ 1250static int 1251ctl_open(struct cdev *dev, int flags, int fmt, struct thread *td) 1252{ 1253 return (0); 1254} 1255 1256static int 1257ctl_close(struct cdev *dev, int flags, int fmt, struct thread *td) 1258{ 1259 return (0); 1260} 1261 1262int 1263ctl_port_enable(ctl_port_type port_type) 1264{ 1265 struct ctl_softc *softc; 1266 struct ctl_port *port; 1267 1268 if (ctl_is_single == 0) { 1269 union ctl_ha_msg msg_info; 1270 int isc_retval; 1271 1272#if 0 1273 printf("%s: HA mode, synchronizing frontend enable\n", 1274 __func__); 1275#endif 1276 msg_info.hdr.msg_type = CTL_MSG_SYNC_FE; 1277 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 1278 sizeof(msg_info), 1 )) > CTL_HA_STATUS_SUCCESS) { 1279 printf("Sync msg send error retval %d\n", isc_retval); 1280 } 1281 if (!rcv_sync_msg) { 1282 isc_retval=ctl_ha_msg_recv(CTL_HA_CHAN_CTL, &msg_info, 1283 sizeof(msg_info), 1); 1284 } 1285#if 0 1286 printf("CTL:Frontend Enable\n"); 1287 } else { 1288 printf("%s: single mode, skipping frontend synchronization\n", 1289 __func__); 1290#endif 1291 } 1292 1293 softc = control_softc; 1294 1295 STAILQ_FOREACH(port, &softc->port_list, links) { 1296 if (port_type & port->port_type) 1297 { 1298#if 0 1299 printf("port %d\n", port->targ_port); 1300#endif 1301 ctl_port_online(port); 1302 } 1303 } 1304 1305 return (0); 1306} 1307 1308int 1309ctl_port_disable(ctl_port_type port_type) 1310{ 1311 struct ctl_softc *softc; 1312 struct ctl_port *port; 1313 1314 softc = control_softc; 1315 1316 STAILQ_FOREACH(port, &softc->port_list, links) { 1317 if (port_type & port->port_type) 1318 ctl_port_offline(port); 1319 } 1320 1321 return (0); 1322} 1323 1324/* 1325 * Returns 0 for success, 1 for failure. 1326 * Currently the only failure mode is if there aren't enough entries 1327 * allocated. So, in case of a failure, look at num_entries_dropped, 1328 * reallocate and try again. 1329 */ 1330int 1331ctl_port_list(struct ctl_port_entry *entries, int num_entries_alloced, 1332 int *num_entries_filled, int *num_entries_dropped, 1333 ctl_port_type port_type, int no_virtual) 1334{ 1335 struct ctl_softc *softc; 1336 struct ctl_port *port; 1337 int entries_dropped, entries_filled; 1338 int retval; 1339 int i; 1340 1341 softc = control_softc; 1342 1343 retval = 0; 1344 entries_filled = 0; 1345 entries_dropped = 0; 1346 1347 i = 0; 1348 mtx_lock(&softc->ctl_lock); 1349 STAILQ_FOREACH(port, &softc->port_list, links) { 1350 struct ctl_port_entry *entry; 1351 1352 if ((port->port_type & port_type) == 0) 1353 continue; 1354 1355 if ((no_virtual != 0) 1356 && (port->virtual_port != 0)) 1357 continue; 1358 1359 if (entries_filled >= num_entries_alloced) { 1360 entries_dropped++; 1361 continue; 1362 } 1363 entry = &entries[i]; 1364 1365 entry->port_type = port->port_type; 1366 strlcpy(entry->port_name, port->port_name, 1367 sizeof(entry->port_name)); 1368 entry->physical_port = port->physical_port; 1369 entry->virtual_port = port->virtual_port; 1370 entry->wwnn = port->wwnn; 1371 entry->wwpn = port->wwpn; 1372 1373 i++; 1374 entries_filled++; 1375 } 1376 1377 mtx_unlock(&softc->ctl_lock); 1378 1379 if (entries_dropped > 0) 1380 retval = 1; 1381 1382 *num_entries_dropped = entries_dropped; 1383 *num_entries_filled = entries_filled; 1384 1385 return (retval); 1386} 1387 1388static void 1389ctl_ioctl_online(void *arg) 1390{ 1391 struct ctl_ioctl_info *ioctl_info; 1392 1393 ioctl_info = (struct ctl_ioctl_info *)arg; 1394 1395 ioctl_info->flags |= CTL_IOCTL_FLAG_ENABLED; 1396} 1397 1398static void 1399ctl_ioctl_offline(void *arg) 1400{ 1401 struct ctl_ioctl_info *ioctl_info; 1402 1403 ioctl_info = (struct ctl_ioctl_info *)arg; 1404 1405 ioctl_info->flags &= ~CTL_IOCTL_FLAG_ENABLED; 1406} 1407 1408/* 1409 * Remove an initiator by port number and initiator ID. 1410 * Returns 0 for success, -1 for failure. 1411 */ 1412int 1413ctl_remove_initiator(struct ctl_port *port, int iid) 1414{ 1415 struct ctl_softc *softc = control_softc; 1416 1417 mtx_assert(&softc->ctl_lock, MA_NOTOWNED); 1418 1419 if (iid > CTL_MAX_INIT_PER_PORT) { 1420 printf("%s: initiator ID %u > maximun %u!\n", 1421 __func__, iid, CTL_MAX_INIT_PER_PORT); 1422 return (-1); 1423 } 1424 1425 mtx_lock(&softc->ctl_lock); 1426 port->wwpn_iid[iid].in_use--; 1427 port->wwpn_iid[iid].last_use = time_uptime; 1428 mtx_unlock(&softc->ctl_lock); 1429 1430 return (0); 1431} 1432 1433/* 1434 * Add an initiator to the initiator map. 1435 * Returns iid for success, < 0 for failure. 1436 */ 1437int 1438ctl_add_initiator(struct ctl_port *port, int iid, uint64_t wwpn, char *name) 1439{ 1440 struct ctl_softc *softc = control_softc; 1441 time_t best_time; 1442 int i, best; 1443 1444 mtx_assert(&softc->ctl_lock, MA_NOTOWNED); 1445 1446 if (iid >= CTL_MAX_INIT_PER_PORT) { 1447 printf("%s: WWPN %#jx initiator ID %u > maximum %u!\n", 1448 __func__, wwpn, iid, CTL_MAX_INIT_PER_PORT); 1449 free(name, M_CTL); 1450 return (-1); 1451 } 1452 1453 mtx_lock(&softc->ctl_lock); 1454 1455 if (iid < 0 && (wwpn != 0 || name != NULL)) { 1456 for (i = 0; i < CTL_MAX_INIT_PER_PORT; i++) { 1457 if (wwpn != 0 && wwpn == port->wwpn_iid[i].wwpn) { 1458 iid = i; 1459 break; 1460 } 1461 if (name != NULL && port->wwpn_iid[i].name != NULL && 1462 strcmp(name, port->wwpn_iid[i].name) == 0) { 1463 iid = i; 1464 break; 1465 } 1466 } 1467 } 1468 1469 if (iid < 0) { 1470 for (i = 0; i < CTL_MAX_INIT_PER_PORT; i++) { 1471 if (port->wwpn_iid[i].in_use == 0 && 1472 port->wwpn_iid[i].wwpn == 0 && 1473 port->wwpn_iid[i].name == NULL) { 1474 iid = i; 1475 break; 1476 } 1477 } 1478 } 1479 1480 if (iid < 0) { 1481 best = -1; 1482 best_time = INT32_MAX; 1483 for (i = 0; i < CTL_MAX_INIT_PER_PORT; i++) { 1484 if (port->wwpn_iid[i].in_use == 0) { 1485 if (port->wwpn_iid[i].last_use < best_time) { 1486 best = i; 1487 best_time = port->wwpn_iid[i].last_use; 1488 } 1489 } 1490 } 1491 iid = best; 1492 } 1493 1494 if (iid < 0) { 1495 mtx_unlock(&softc->ctl_lock); 1496 free(name, M_CTL); 1497 return (-2); 1498 } 1499 1500 if (port->wwpn_iid[iid].in_use > 0 && (wwpn != 0 || name != NULL)) { 1501 /* 1502 * This is not an error yet. 1503 */ 1504 if (wwpn != 0 && wwpn == port->wwpn_iid[iid].wwpn) { 1505#if 0 1506 printf("%s: port %d iid %u WWPN %#jx arrived" 1507 " again\n", __func__, port->targ_port, 1508 iid, (uintmax_t)wwpn); 1509#endif 1510 goto take; 1511 } 1512 if (name != NULL && port->wwpn_iid[iid].name != NULL && 1513 strcmp(name, port->wwpn_iid[iid].name) == 0) { 1514#if 0 1515 printf("%s: port %d iid %u name '%s' arrived" 1516 " again\n", __func__, port->targ_port, 1517 iid, name); 1518#endif 1519 goto take; 1520 } 1521 1522 /* 1523 * This is an error, but what do we do about it? The 1524 * driver is telling us we have a new WWPN for this 1525 * initiator ID, so we pretty much need to use it. 1526 */ 1527 printf("%s: port %d iid %u WWPN %#jx '%s' arrived," 1528 " but WWPN %#jx '%s' is still at that address\n", 1529 __func__, port->targ_port, iid, wwpn, name, 1530 (uintmax_t)port->wwpn_iid[iid].wwpn, 1531 port->wwpn_iid[iid].name); 1532 1533 /* 1534 * XXX KDM clear have_ca and ua_pending on each LUN for 1535 * this initiator. 1536 */ 1537 } 1538take: 1539 free(port->wwpn_iid[iid].name, M_CTL); 1540 port->wwpn_iid[iid].name = name; 1541 port->wwpn_iid[iid].wwpn = wwpn; 1542 port->wwpn_iid[iid].in_use++; 1543 mtx_unlock(&softc->ctl_lock); 1544 1545 return (iid); 1546} 1547 1548static int 1549ctl_create_iid(struct ctl_port *port, int iid, uint8_t *buf) 1550{ 1551 int len; 1552 1553 switch (port->port_type) { 1554 case CTL_PORT_FC: 1555 { 1556 struct scsi_transportid_fcp *id = 1557 (struct scsi_transportid_fcp *)buf; 1558 if (port->wwpn_iid[iid].wwpn == 0) 1559 return (0); 1560 memset(id, 0, sizeof(*id)); 1561 id->format_protocol = SCSI_PROTO_FC; 1562 scsi_u64to8b(port->wwpn_iid[iid].wwpn, id->n_port_name); 1563 return (sizeof(*id)); 1564 } 1565 case CTL_PORT_ISCSI: 1566 { 1567 struct scsi_transportid_iscsi_port *id = 1568 (struct scsi_transportid_iscsi_port *)buf; 1569 if (port->wwpn_iid[iid].name == NULL) 1570 return (0); 1571 memset(id, 0, 256); 1572 id->format_protocol = SCSI_TRN_ISCSI_FORMAT_PORT | 1573 SCSI_PROTO_ISCSI; 1574 len = strlcpy(id->iscsi_name, port->wwpn_iid[iid].name, 252) + 1; 1575 len = roundup2(min(len, 252), 4); 1576 scsi_ulto2b(len, id->additional_length); 1577 return (sizeof(*id) + len); 1578 } 1579 case CTL_PORT_SAS: 1580 { 1581 struct scsi_transportid_sas *id = 1582 (struct scsi_transportid_sas *)buf; 1583 if (port->wwpn_iid[iid].wwpn == 0) 1584 return (0); 1585 memset(id, 0, sizeof(*id)); 1586 id->format_protocol = SCSI_PROTO_SAS; 1587 scsi_u64to8b(port->wwpn_iid[iid].wwpn, id->sas_address); 1588 return (sizeof(*id)); 1589 } 1590 default: 1591 { 1592 struct scsi_transportid_spi *id = 1593 (struct scsi_transportid_spi *)buf; 1594 memset(id, 0, sizeof(*id)); 1595 id->format_protocol = SCSI_PROTO_SPI; 1596 scsi_ulto2b(iid, id->scsi_addr); 1597 scsi_ulto2b(port->targ_port, id->rel_trgt_port_id); 1598 return (sizeof(*id)); 1599 } 1600 } 1601} 1602 1603static int 1604ctl_ioctl_lun_enable(void *arg, struct ctl_id targ_id, int lun_id) 1605{ 1606 return (0); 1607} 1608 1609static int 1610ctl_ioctl_lun_disable(void *arg, struct ctl_id targ_id, int lun_id) 1611{ 1612 return (0); 1613} 1614 1615/* 1616 * Data movement routine for the CTL ioctl frontend port. 1617 */ 1618static int 1619ctl_ioctl_do_datamove(struct ctl_scsiio *ctsio) 1620{ 1621 struct ctl_sg_entry *ext_sglist, *kern_sglist; 1622 struct ctl_sg_entry ext_entry, kern_entry; 1623 int ext_sglen, ext_sg_entries, kern_sg_entries; 1624 int ext_sg_start, ext_offset; 1625 int len_to_copy, len_copied; 1626 int kern_watermark, ext_watermark; 1627 int ext_sglist_malloced; 1628 int i, j; 1629 1630 ext_sglist_malloced = 0; 1631 ext_sg_start = 0; 1632 ext_offset = 0; 1633 1634 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove\n")); 1635 1636 /* 1637 * If this flag is set, fake the data transfer. 1638 */ 1639 if (ctsio->io_hdr.flags & CTL_FLAG_NO_DATAMOVE) { 1640 ctsio->ext_data_filled = ctsio->ext_data_len; 1641 goto bailout; 1642 } 1643 1644 /* 1645 * To simplify things here, if we have a single buffer, stick it in 1646 * a S/G entry and just make it a single entry S/G list. 1647 */ 1648 if (ctsio->io_hdr.flags & CTL_FLAG_EDPTR_SGLIST) { 1649 int len_seen; 1650 1651 ext_sglen = ctsio->ext_sg_entries * sizeof(*ext_sglist); 1652 1653 ext_sglist = (struct ctl_sg_entry *)malloc(ext_sglen, M_CTL, 1654 M_WAITOK); 1655 ext_sglist_malloced = 1; 1656 if (copyin(ctsio->ext_data_ptr, ext_sglist, 1657 ext_sglen) != 0) { 1658 ctl_set_internal_failure(ctsio, 1659 /*sks_valid*/ 0, 1660 /*retry_count*/ 0); 1661 goto bailout; 1662 } 1663 ext_sg_entries = ctsio->ext_sg_entries; 1664 len_seen = 0; 1665 for (i = 0; i < ext_sg_entries; i++) { 1666 if ((len_seen + ext_sglist[i].len) >= 1667 ctsio->ext_data_filled) { 1668 ext_sg_start = i; 1669 ext_offset = ctsio->ext_data_filled - len_seen; 1670 break; 1671 } 1672 len_seen += ext_sglist[i].len; 1673 } 1674 } else { 1675 ext_sglist = &ext_entry; 1676 ext_sglist->addr = ctsio->ext_data_ptr; 1677 ext_sglist->len = ctsio->ext_data_len; 1678 ext_sg_entries = 1; 1679 ext_sg_start = 0; 1680 ext_offset = ctsio->ext_data_filled; 1681 } 1682 1683 if (ctsio->kern_sg_entries > 0) { 1684 kern_sglist = (struct ctl_sg_entry *)ctsio->kern_data_ptr; 1685 kern_sg_entries = ctsio->kern_sg_entries; 1686 } else { 1687 kern_sglist = &kern_entry; 1688 kern_sglist->addr = ctsio->kern_data_ptr; 1689 kern_sglist->len = ctsio->kern_data_len; 1690 kern_sg_entries = 1; 1691 } 1692 1693 1694 kern_watermark = 0; 1695 ext_watermark = ext_offset; 1696 len_copied = 0; 1697 for (i = ext_sg_start, j = 0; 1698 i < ext_sg_entries && j < kern_sg_entries;) { 1699 uint8_t *ext_ptr, *kern_ptr; 1700 1701 len_to_copy = ctl_min(ext_sglist[i].len - ext_watermark, 1702 kern_sglist[j].len - kern_watermark); 1703 1704 ext_ptr = (uint8_t *)ext_sglist[i].addr; 1705 ext_ptr = ext_ptr + ext_watermark; 1706 if (ctsio->io_hdr.flags & CTL_FLAG_BUS_ADDR) { 1707 /* 1708 * XXX KDM fix this! 1709 */ 1710 panic("need to implement bus address support"); 1711#if 0 1712 kern_ptr = bus_to_virt(kern_sglist[j].addr); 1713#endif 1714 } else 1715 kern_ptr = (uint8_t *)kern_sglist[j].addr; 1716 kern_ptr = kern_ptr + kern_watermark; 1717 1718 kern_watermark += len_to_copy; 1719 ext_watermark += len_to_copy; 1720 1721 if ((ctsio->io_hdr.flags & CTL_FLAG_DATA_MASK) == 1722 CTL_FLAG_DATA_IN) { 1723 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove: copying %d " 1724 "bytes to user\n", len_to_copy)); 1725 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove: from %p " 1726 "to %p\n", kern_ptr, ext_ptr)); 1727 if (copyout(kern_ptr, ext_ptr, len_to_copy) != 0) { 1728 ctl_set_internal_failure(ctsio, 1729 /*sks_valid*/ 0, 1730 /*retry_count*/ 0); 1731 goto bailout; 1732 } 1733 } else { 1734 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove: copying %d " 1735 "bytes from user\n", len_to_copy)); 1736 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove: from %p " 1737 "to %p\n", ext_ptr, kern_ptr)); 1738 if (copyin(ext_ptr, kern_ptr, len_to_copy)!= 0){ 1739 ctl_set_internal_failure(ctsio, 1740 /*sks_valid*/ 0, 1741 /*retry_count*/0); 1742 goto bailout; 1743 } 1744 } 1745 1746 len_copied += len_to_copy; 1747 1748 if (ext_sglist[i].len == ext_watermark) { 1749 i++; 1750 ext_watermark = 0; 1751 } 1752 1753 if (kern_sglist[j].len == kern_watermark) { 1754 j++; 1755 kern_watermark = 0; 1756 } 1757 } 1758 1759 ctsio->ext_data_filled += len_copied; 1760 1761 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove: ext_sg_entries: %d, " 1762 "kern_sg_entries: %d\n", ext_sg_entries, 1763 kern_sg_entries)); 1764 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove: ext_data_len = %d, " 1765 "kern_data_len = %d\n", ctsio->ext_data_len, 1766 ctsio->kern_data_len)); 1767 1768 1769 /* XXX KDM set residual?? */ 1770bailout: 1771 1772 if (ext_sglist_malloced != 0) 1773 free(ext_sglist, M_CTL); 1774 1775 return (CTL_RETVAL_COMPLETE); 1776} 1777 1778/* 1779 * Serialize a command that went down the "wrong" side, and so was sent to 1780 * this controller for execution. The logic is a little different than the 1781 * standard case in ctl_scsiio_precheck(). Errors in this case need to get 1782 * sent back to the other side, but in the success case, we execute the 1783 * command on this side (XFER mode) or tell the other side to execute it 1784 * (SER_ONLY mode). 1785 */ 1786static int 1787ctl_serialize_other_sc_cmd(struct ctl_scsiio *ctsio) 1788{ 1789 struct ctl_softc *ctl_softc; 1790 union ctl_ha_msg msg_info; 1791 struct ctl_lun *lun; 1792 int retval = 0; 1793 uint32_t targ_lun; 1794 1795 ctl_softc = control_softc; 1796 1797 targ_lun = ctsio->io_hdr.nexus.targ_mapped_lun; 1798 lun = ctl_softc->ctl_luns[targ_lun]; 1799 if (lun==NULL) 1800 { 1801 /* 1802 * Why isn't LUN defined? The other side wouldn't 1803 * send a cmd if the LUN is undefined. 1804 */ 1805 printf("%s: Bad JUJU!, LUN is NULL!\n", __func__); 1806 1807 /* "Logical unit not supported" */ 1808 ctl_set_sense_data(&msg_info.scsi.sense_data, 1809 lun, 1810 /*sense_format*/SSD_TYPE_NONE, 1811 /*current_error*/ 1, 1812 /*sense_key*/ SSD_KEY_ILLEGAL_REQUEST, 1813 /*asc*/ 0x25, 1814 /*ascq*/ 0x00, 1815 SSD_ELEM_NONE); 1816 1817 msg_info.scsi.sense_len = SSD_FULL_SIZE; 1818 msg_info.scsi.scsi_status = SCSI_STATUS_CHECK_COND; 1819 msg_info.hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 1820 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 1821 msg_info.hdr.serializing_sc = NULL; 1822 msg_info.hdr.msg_type = CTL_MSG_BAD_JUJU; 1823 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 1824 sizeof(msg_info), 0 ) > CTL_HA_STATUS_SUCCESS) { 1825 } 1826 return(1); 1827 1828 } 1829 1830 mtx_lock(&lun->lun_lock); 1831 TAILQ_INSERT_TAIL(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 1832 1833 switch (ctl_check_ooa(lun, (union ctl_io *)ctsio, 1834 (union ctl_io *)TAILQ_PREV(&ctsio->io_hdr, ctl_ooaq, 1835 ooa_links))) { 1836 case CTL_ACTION_BLOCK: 1837 ctsio->io_hdr.flags |= CTL_FLAG_BLOCKED; 1838 TAILQ_INSERT_TAIL(&lun->blocked_queue, &ctsio->io_hdr, 1839 blocked_links); 1840 break; 1841 case CTL_ACTION_PASS: 1842 case CTL_ACTION_SKIP: 1843 if (ctl_softc->ha_mode == CTL_HA_MODE_XFER) { 1844 ctsio->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 1845 ctl_enqueue_rtr((union ctl_io *)ctsio); 1846 } else { 1847 1848 /* send msg back to other side */ 1849 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 1850 msg_info.hdr.serializing_sc = (union ctl_io *)ctsio; 1851 msg_info.hdr.msg_type = CTL_MSG_R2R; 1852#if 0 1853 printf("2. pOrig %x\n", (int)msg_info.hdr.original_sc); 1854#endif 1855 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 1856 sizeof(msg_info), 0 ) > CTL_HA_STATUS_SUCCESS) { 1857 } 1858 } 1859 break; 1860 case CTL_ACTION_OVERLAP: 1861 /* OVERLAPPED COMMANDS ATTEMPTED */ 1862 ctl_set_sense_data(&msg_info.scsi.sense_data, 1863 lun, 1864 /*sense_format*/SSD_TYPE_NONE, 1865 /*current_error*/ 1, 1866 /*sense_key*/ SSD_KEY_ILLEGAL_REQUEST, 1867 /*asc*/ 0x4E, 1868 /*ascq*/ 0x00, 1869 SSD_ELEM_NONE); 1870 1871 msg_info.scsi.sense_len = SSD_FULL_SIZE; 1872 msg_info.scsi.scsi_status = SCSI_STATUS_CHECK_COND; 1873 msg_info.hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 1874 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 1875 msg_info.hdr.serializing_sc = NULL; 1876 msg_info.hdr.msg_type = CTL_MSG_BAD_JUJU; 1877#if 0 1878 printf("BAD JUJU:Major Bummer Overlap\n"); 1879#endif 1880 TAILQ_REMOVE(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 1881 retval = 1; 1882 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 1883 sizeof(msg_info), 0 ) > CTL_HA_STATUS_SUCCESS) { 1884 } 1885 break; 1886 case CTL_ACTION_OVERLAP_TAG: 1887 /* TAGGED OVERLAPPED COMMANDS (NN = QUEUE TAG) */ 1888 ctl_set_sense_data(&msg_info.scsi.sense_data, 1889 lun, 1890 /*sense_format*/SSD_TYPE_NONE, 1891 /*current_error*/ 1, 1892 /*sense_key*/ SSD_KEY_ILLEGAL_REQUEST, 1893 /*asc*/ 0x4D, 1894 /*ascq*/ ctsio->tag_num & 0xff, 1895 SSD_ELEM_NONE); 1896 1897 msg_info.scsi.sense_len = SSD_FULL_SIZE; 1898 msg_info.scsi.scsi_status = SCSI_STATUS_CHECK_COND; 1899 msg_info.hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 1900 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 1901 msg_info.hdr.serializing_sc = NULL; 1902 msg_info.hdr.msg_type = CTL_MSG_BAD_JUJU; 1903#if 0 1904 printf("BAD JUJU:Major Bummer Overlap Tag\n"); 1905#endif 1906 TAILQ_REMOVE(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 1907 retval = 1; 1908 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 1909 sizeof(msg_info), 0 ) > CTL_HA_STATUS_SUCCESS) { 1910 } 1911 break; 1912 case CTL_ACTION_ERROR: 1913 default: 1914 /* "Internal target failure" */ 1915 ctl_set_sense_data(&msg_info.scsi.sense_data, 1916 lun, 1917 /*sense_format*/SSD_TYPE_NONE, 1918 /*current_error*/ 1, 1919 /*sense_key*/ SSD_KEY_HARDWARE_ERROR, 1920 /*asc*/ 0x44, 1921 /*ascq*/ 0x00, 1922 SSD_ELEM_NONE); 1923 1924 msg_info.scsi.sense_len = SSD_FULL_SIZE; 1925 msg_info.scsi.scsi_status = SCSI_STATUS_CHECK_COND; 1926 msg_info.hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 1927 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 1928 msg_info.hdr.serializing_sc = NULL; 1929 msg_info.hdr.msg_type = CTL_MSG_BAD_JUJU; 1930#if 0 1931 printf("BAD JUJU:Major Bummer HW Error\n"); 1932#endif 1933 TAILQ_REMOVE(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 1934 retval = 1; 1935 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 1936 sizeof(msg_info), 0 ) > CTL_HA_STATUS_SUCCESS) { 1937 } 1938 break; 1939 } 1940 mtx_unlock(&lun->lun_lock); 1941 return (retval); 1942} 1943 1944static int 1945ctl_ioctl_submit_wait(union ctl_io *io) 1946{ 1947 struct ctl_fe_ioctl_params params; 1948 ctl_fe_ioctl_state last_state; 1949 int done, retval; 1950 1951 retval = 0; 1952 1953 bzero(¶ms, sizeof(params)); 1954 1955 mtx_init(¶ms.ioctl_mtx, "ctliocmtx", NULL, MTX_DEF); 1956 cv_init(¶ms.sem, "ctlioccv"); 1957 params.state = CTL_IOCTL_INPROG; 1958 last_state = params.state; 1959 1960 io->io_hdr.ctl_private[CTL_PRIV_FRONTEND].ptr = ¶ms; 1961 1962 CTL_DEBUG_PRINT(("ctl_ioctl_submit_wait\n")); 1963 1964 /* This shouldn't happen */ 1965 if ((retval = ctl_queue(io)) != CTL_RETVAL_COMPLETE) 1966 return (retval); 1967 1968 done = 0; 1969 1970 do { 1971 mtx_lock(¶ms.ioctl_mtx); 1972 /* 1973 * Check the state here, and don't sleep if the state has 1974 * already changed (i.e. wakeup has already occured, but we 1975 * weren't waiting yet). 1976 */ 1977 if (params.state == last_state) { 1978 /* XXX KDM cv_wait_sig instead? */ 1979 cv_wait(¶ms.sem, ¶ms.ioctl_mtx); 1980 } 1981 last_state = params.state; 1982 1983 switch (params.state) { 1984 case CTL_IOCTL_INPROG: 1985 /* Why did we wake up? */ 1986 /* XXX KDM error here? */ 1987 mtx_unlock(¶ms.ioctl_mtx); 1988 break; 1989 case CTL_IOCTL_DATAMOVE: 1990 CTL_DEBUG_PRINT(("got CTL_IOCTL_DATAMOVE\n")); 1991 1992 /* 1993 * change last_state back to INPROG to avoid 1994 * deadlock on subsequent data moves. 1995 */ 1996 params.state = last_state = CTL_IOCTL_INPROG; 1997 1998 mtx_unlock(¶ms.ioctl_mtx); 1999 ctl_ioctl_do_datamove(&io->scsiio); 2000 /* 2001 * Note that in some cases, most notably writes, 2002 * this will queue the I/O and call us back later. 2003 * In other cases, generally reads, this routine 2004 * will immediately call back and wake us up, 2005 * probably using our own context. 2006 */ 2007 io->scsiio.be_move_done(io); 2008 break; 2009 case CTL_IOCTL_DONE: 2010 mtx_unlock(¶ms.ioctl_mtx); 2011 CTL_DEBUG_PRINT(("got CTL_IOCTL_DONE\n")); 2012 done = 1; 2013 break; 2014 default: 2015 mtx_unlock(¶ms.ioctl_mtx); 2016 /* XXX KDM error here? */ 2017 break; 2018 } 2019 } while (done == 0); 2020 2021 mtx_destroy(¶ms.ioctl_mtx); 2022 cv_destroy(¶ms.sem); 2023 2024 return (CTL_RETVAL_COMPLETE); 2025} 2026 2027static void 2028ctl_ioctl_datamove(union ctl_io *io) 2029{ 2030 struct ctl_fe_ioctl_params *params; 2031 2032 params = (struct ctl_fe_ioctl_params *) 2033 io->io_hdr.ctl_private[CTL_PRIV_FRONTEND].ptr; 2034 2035 mtx_lock(¶ms->ioctl_mtx); 2036 params->state = CTL_IOCTL_DATAMOVE; 2037 cv_broadcast(¶ms->sem); 2038 mtx_unlock(¶ms->ioctl_mtx); 2039} 2040 2041static void 2042ctl_ioctl_done(union ctl_io *io) 2043{ 2044 struct ctl_fe_ioctl_params *params; 2045 2046 params = (struct ctl_fe_ioctl_params *) 2047 io->io_hdr.ctl_private[CTL_PRIV_FRONTEND].ptr; 2048 2049 mtx_lock(¶ms->ioctl_mtx); 2050 params->state = CTL_IOCTL_DONE; 2051 cv_broadcast(¶ms->sem); 2052 mtx_unlock(¶ms->ioctl_mtx); 2053} 2054 2055static void 2056ctl_ioctl_hard_startstop_callback(void *arg, struct cfi_metatask *metatask) 2057{ 2058 struct ctl_fe_ioctl_startstop_info *sd_info; 2059 2060 sd_info = (struct ctl_fe_ioctl_startstop_info *)arg; 2061 2062 sd_info->hs_info.status = metatask->status; 2063 sd_info->hs_info.total_luns = metatask->taskinfo.startstop.total_luns; 2064 sd_info->hs_info.luns_complete = 2065 metatask->taskinfo.startstop.luns_complete; 2066 sd_info->hs_info.luns_failed = metatask->taskinfo.startstop.luns_failed; 2067 2068 cv_broadcast(&sd_info->sem); 2069} 2070 2071static void 2072ctl_ioctl_bbrread_callback(void *arg, struct cfi_metatask *metatask) 2073{ 2074 struct ctl_fe_ioctl_bbrread_info *fe_bbr_info; 2075 2076 fe_bbr_info = (struct ctl_fe_ioctl_bbrread_info *)arg; 2077 2078 mtx_lock(fe_bbr_info->lock); 2079 fe_bbr_info->bbr_info->status = metatask->status; 2080 fe_bbr_info->bbr_info->bbr_status = metatask->taskinfo.bbrread.status; 2081 fe_bbr_info->wakeup_done = 1; 2082 mtx_unlock(fe_bbr_info->lock); 2083 2084 cv_broadcast(&fe_bbr_info->sem); 2085} 2086 2087/* 2088 * Returns 0 for success, errno for failure. 2089 */ 2090static int 2091ctl_ioctl_fill_ooa(struct ctl_lun *lun, uint32_t *cur_fill_num, 2092 struct ctl_ooa *ooa_hdr, struct ctl_ooa_entry *kern_entries) 2093{ 2094 union ctl_io *io; 2095 int retval; 2096 2097 retval = 0; 2098 2099 mtx_lock(&lun->lun_lock); 2100 for (io = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); (io != NULL); 2101 (*cur_fill_num)++, io = (union ctl_io *)TAILQ_NEXT(&io->io_hdr, 2102 ooa_links)) { 2103 struct ctl_ooa_entry *entry; 2104 2105 /* 2106 * If we've got more than we can fit, just count the 2107 * remaining entries. 2108 */ 2109 if (*cur_fill_num >= ooa_hdr->alloc_num) 2110 continue; 2111 2112 entry = &kern_entries[*cur_fill_num]; 2113 2114 entry->tag_num = io->scsiio.tag_num; 2115 entry->lun_num = lun->lun; 2116#ifdef CTL_TIME_IO 2117 entry->start_bt = io->io_hdr.start_bt; 2118#endif 2119 bcopy(io->scsiio.cdb, entry->cdb, io->scsiio.cdb_len); 2120 entry->cdb_len = io->scsiio.cdb_len; 2121 if (io->io_hdr.flags & CTL_FLAG_BLOCKED) 2122 entry->cmd_flags |= CTL_OOACMD_FLAG_BLOCKED; 2123 2124 if (io->io_hdr.flags & CTL_FLAG_DMA_INPROG) 2125 entry->cmd_flags |= CTL_OOACMD_FLAG_DMA; 2126 2127 if (io->io_hdr.flags & CTL_FLAG_ABORT) 2128 entry->cmd_flags |= CTL_OOACMD_FLAG_ABORT; 2129 2130 if (io->io_hdr.flags & CTL_FLAG_IS_WAS_ON_RTR) 2131 entry->cmd_flags |= CTL_OOACMD_FLAG_RTR; 2132 2133 if (io->io_hdr.flags & CTL_FLAG_DMA_QUEUED) 2134 entry->cmd_flags |= CTL_OOACMD_FLAG_DMA_QUEUED; 2135 } 2136 mtx_unlock(&lun->lun_lock); 2137 2138 return (retval); 2139} 2140 2141static void * 2142ctl_copyin_alloc(void *user_addr, int len, char *error_str, 2143 size_t error_str_len) 2144{ 2145 void *kptr; 2146 2147 kptr = malloc(len, M_CTL, M_WAITOK | M_ZERO); 2148 2149 if (copyin(user_addr, kptr, len) != 0) { 2150 snprintf(error_str, error_str_len, "Error copying %d bytes " 2151 "from user address %p to kernel address %p", len, 2152 user_addr, kptr); 2153 free(kptr, M_CTL); 2154 return (NULL); 2155 } 2156 2157 return (kptr); 2158} 2159 2160static void 2161ctl_free_args(int num_args, struct ctl_be_arg *args) 2162{ 2163 int i; 2164 2165 if (args == NULL) 2166 return; 2167 2168 for (i = 0; i < num_args; i++) { 2169 free(args[i].kname, M_CTL); 2170 free(args[i].kvalue, M_CTL); 2171 } 2172 2173 free(args, M_CTL); 2174} 2175 2176static struct ctl_be_arg * 2177ctl_copyin_args(int num_args, struct ctl_be_arg *uargs, 2178 char *error_str, size_t error_str_len) 2179{ 2180 struct ctl_be_arg *args; 2181 int i; 2182 2183 args = ctl_copyin_alloc(uargs, num_args * sizeof(*args), 2184 error_str, error_str_len); 2185 2186 if (args == NULL) 2187 goto bailout; 2188 2189 for (i = 0; i < num_args; i++) { 2190 args[i].kname = NULL; 2191 args[i].kvalue = NULL; 2192 } 2193 2194 for (i = 0; i < num_args; i++) { 2195 uint8_t *tmpptr; 2196 2197 args[i].kname = ctl_copyin_alloc(args[i].name, 2198 args[i].namelen, error_str, error_str_len); 2199 if (args[i].kname == NULL) 2200 goto bailout; 2201 2202 if (args[i].kname[args[i].namelen - 1] != '\0') { 2203 snprintf(error_str, error_str_len, "Argument %d " 2204 "name is not NUL-terminated", i); 2205 goto bailout; 2206 } 2207 2208 if (args[i].flags & CTL_BEARG_RD) { 2209 tmpptr = ctl_copyin_alloc(args[i].value, 2210 args[i].vallen, error_str, error_str_len); 2211 if (tmpptr == NULL) 2212 goto bailout; 2213 if ((args[i].flags & CTL_BEARG_ASCII) 2214 && (tmpptr[args[i].vallen - 1] != '\0')) { 2215 snprintf(error_str, error_str_len, "Argument " 2216 "%d value is not NUL-terminated", i); 2217 goto bailout; 2218 } 2219 args[i].kvalue = tmpptr; 2220 } else { 2221 args[i].kvalue = malloc(args[i].vallen, 2222 M_CTL, M_WAITOK | M_ZERO); 2223 } 2224 } 2225 2226 return (args); 2227bailout: 2228 2229 ctl_free_args(num_args, args); 2230 2231 return (NULL); 2232} 2233 2234static void 2235ctl_copyout_args(int num_args, struct ctl_be_arg *args) 2236{ 2237 int i; 2238 2239 for (i = 0; i < num_args; i++) { 2240 if (args[i].flags & CTL_BEARG_WR) 2241 copyout(args[i].kvalue, args[i].value, args[i].vallen); 2242 } 2243} 2244 2245/* 2246 * Escape characters that are illegal or not recommended in XML. 2247 */ 2248int 2249ctl_sbuf_printf_esc(struct sbuf *sb, char *str, int size) 2250{ 2251 char *end = str + size; 2252 int retval; 2253 2254 retval = 0; 2255 2256 for (; *str && str < end; str++) { 2257 switch (*str) { 2258 case '&': 2259 retval = sbuf_printf(sb, "&"); 2260 break; 2261 case '>': 2262 retval = sbuf_printf(sb, ">"); 2263 break; 2264 case '<': 2265 retval = sbuf_printf(sb, "<"); 2266 break; 2267 default: 2268 retval = sbuf_putc(sb, *str); 2269 break; 2270 } 2271 2272 if (retval != 0) 2273 break; 2274 2275 } 2276 2277 return (retval); 2278} 2279 2280static void 2281ctl_id_sbuf(struct ctl_devid *id, struct sbuf *sb) 2282{ 2283 struct scsi_vpd_id_descriptor *desc; 2284 int i; 2285 2286 if (id == NULL || id->len < 4) 2287 return; 2288 desc = (struct scsi_vpd_id_descriptor *)id->data; 2289 switch (desc->id_type & SVPD_ID_TYPE_MASK) { 2290 case SVPD_ID_TYPE_T10: 2291 sbuf_printf(sb, "t10."); 2292 break; 2293 case SVPD_ID_TYPE_EUI64: 2294 sbuf_printf(sb, "eui."); 2295 break; 2296 case SVPD_ID_TYPE_NAA: 2297 sbuf_printf(sb, "naa."); 2298 break; 2299 case SVPD_ID_TYPE_SCSI_NAME: 2300 break; 2301 } 2302 switch (desc->proto_codeset & SVPD_ID_CODESET_MASK) { 2303 case SVPD_ID_CODESET_BINARY: 2304 for (i = 0; i < desc->length; i++) 2305 sbuf_printf(sb, "%02x", desc->identifier[i]); 2306 break; 2307 case SVPD_ID_CODESET_ASCII: 2308 sbuf_printf(sb, "%.*s", (int)desc->length, 2309 (char *)desc->identifier); 2310 break; 2311 case SVPD_ID_CODESET_UTF8: 2312 sbuf_printf(sb, "%s", (char *)desc->identifier); 2313 break; 2314 } 2315} 2316 2317static int 2318ctl_ioctl(struct cdev *dev, u_long cmd, caddr_t addr, int flag, 2319 struct thread *td) 2320{ 2321 struct ctl_softc *softc; 2322 int retval; 2323 2324 softc = control_softc; 2325 2326 retval = 0; 2327 2328 switch (cmd) { 2329 case CTL_IO: { 2330 union ctl_io *io; 2331 void *pool_tmp; 2332 2333 /* 2334 * If we haven't been "enabled", don't allow any SCSI I/O 2335 * to this FETD. 2336 */ 2337 if ((softc->ioctl_info.flags & CTL_IOCTL_FLAG_ENABLED) == 0) { 2338 retval = EPERM; 2339 break; 2340 } 2341 2342 io = ctl_alloc_io(softc->ioctl_info.port.ctl_pool_ref); 2343 if (io == NULL) { 2344 printf("ctl_ioctl: can't allocate ctl_io!\n"); 2345 retval = ENOSPC; 2346 break; 2347 } 2348 2349 /* 2350 * Need to save the pool reference so it doesn't get 2351 * spammed by the user's ctl_io. 2352 */ 2353 pool_tmp = io->io_hdr.pool; 2354 2355 memcpy(io, (void *)addr, sizeof(*io)); 2356 2357 io->io_hdr.pool = pool_tmp; 2358 /* 2359 * No status yet, so make sure the status is set properly. 2360 */ 2361 io->io_hdr.status = CTL_STATUS_NONE; 2362 2363 /* 2364 * The user sets the initiator ID, target and LUN IDs. 2365 */ 2366 io->io_hdr.nexus.targ_port = softc->ioctl_info.port.targ_port; 2367 io->io_hdr.flags |= CTL_FLAG_USER_REQ; 2368 if ((io->io_hdr.io_type == CTL_IO_SCSI) 2369 && (io->scsiio.tag_type != CTL_TAG_UNTAGGED)) 2370 io->scsiio.tag_num = softc->ioctl_info.cur_tag_num++; 2371 2372 retval = ctl_ioctl_submit_wait(io); 2373 2374 if (retval != 0) { 2375 ctl_free_io(io); 2376 break; 2377 } 2378 2379 memcpy((void *)addr, io, sizeof(*io)); 2380 2381 /* return this to our pool */ 2382 ctl_free_io(io); 2383 2384 break; 2385 } 2386 case CTL_ENABLE_PORT: 2387 case CTL_DISABLE_PORT: 2388 case CTL_SET_PORT_WWNS: { 2389 struct ctl_port *port; 2390 struct ctl_port_entry *entry; 2391 2392 entry = (struct ctl_port_entry *)addr; 2393 2394 mtx_lock(&softc->ctl_lock); 2395 STAILQ_FOREACH(port, &softc->port_list, links) { 2396 int action, done; 2397 2398 action = 0; 2399 done = 0; 2400 2401 if ((entry->port_type == CTL_PORT_NONE) 2402 && (entry->targ_port == port->targ_port)) { 2403 /* 2404 * If the user only wants to enable or 2405 * disable or set WWNs on a specific port, 2406 * do the operation and we're done. 2407 */ 2408 action = 1; 2409 done = 1; 2410 } else if (entry->port_type & port->port_type) { 2411 /* 2412 * Compare the user's type mask with the 2413 * particular frontend type to see if we 2414 * have a match. 2415 */ 2416 action = 1; 2417 done = 0; 2418 2419 /* 2420 * Make sure the user isn't trying to set 2421 * WWNs on multiple ports at the same time. 2422 */ 2423 if (cmd == CTL_SET_PORT_WWNS) { 2424 printf("%s: Can't set WWNs on " 2425 "multiple ports\n", __func__); 2426 retval = EINVAL; 2427 break; 2428 } 2429 } 2430 if (action != 0) { 2431 /* 2432 * XXX KDM we have to drop the lock here, 2433 * because the online/offline operations 2434 * can potentially block. We need to 2435 * reference count the frontends so they 2436 * can't go away, 2437 */ 2438 mtx_unlock(&softc->ctl_lock); 2439 2440 if (cmd == CTL_ENABLE_PORT) { 2441 struct ctl_lun *lun; 2442 2443 STAILQ_FOREACH(lun, &softc->lun_list, 2444 links) { 2445 port->lun_enable(port->targ_lun_arg, 2446 lun->target, 2447 lun->lun); 2448 } 2449 2450 ctl_port_online(port); 2451 } else if (cmd == CTL_DISABLE_PORT) { 2452 struct ctl_lun *lun; 2453 2454 ctl_port_offline(port); 2455 2456 STAILQ_FOREACH(lun, &softc->lun_list, 2457 links) { 2458 port->lun_disable( 2459 port->targ_lun_arg, 2460 lun->target, 2461 lun->lun); 2462 } 2463 } 2464 2465 mtx_lock(&softc->ctl_lock); 2466 2467 if (cmd == CTL_SET_PORT_WWNS) 2468 ctl_port_set_wwns(port, 2469 (entry->flags & CTL_PORT_WWNN_VALID) ? 2470 1 : 0, entry->wwnn, 2471 (entry->flags & CTL_PORT_WWPN_VALID) ? 2472 1 : 0, entry->wwpn); 2473 } 2474 if (done != 0) 2475 break; 2476 } 2477 mtx_unlock(&softc->ctl_lock); 2478 break; 2479 } 2480 case CTL_GET_PORT_LIST: { 2481 struct ctl_port *port; 2482 struct ctl_port_list *list; 2483 int i; 2484 2485 list = (struct ctl_port_list *)addr; 2486 2487 if (list->alloc_len != (list->alloc_num * 2488 sizeof(struct ctl_port_entry))) { 2489 printf("%s: CTL_GET_PORT_LIST: alloc_len %u != " 2490 "alloc_num %u * sizeof(struct ctl_port_entry) " 2491 "%zu\n", __func__, list->alloc_len, 2492 list->alloc_num, sizeof(struct ctl_port_entry)); 2493 retval = EINVAL; 2494 break; 2495 } 2496 list->fill_len = 0; 2497 list->fill_num = 0; 2498 list->dropped_num = 0; 2499 i = 0; 2500 mtx_lock(&softc->ctl_lock); 2501 STAILQ_FOREACH(port, &softc->port_list, links) { 2502 struct ctl_port_entry entry, *list_entry; 2503 2504 if (list->fill_num >= list->alloc_num) { 2505 list->dropped_num++; 2506 continue; 2507 } 2508 2509 entry.port_type = port->port_type; 2510 strlcpy(entry.port_name, port->port_name, 2511 sizeof(entry.port_name)); 2512 entry.targ_port = port->targ_port; 2513 entry.physical_port = port->physical_port; 2514 entry.virtual_port = port->virtual_port; 2515 entry.wwnn = port->wwnn; 2516 entry.wwpn = port->wwpn; 2517 if (port->status & CTL_PORT_STATUS_ONLINE) 2518 entry.online = 1; 2519 else 2520 entry.online = 0; 2521 2522 list_entry = &list->entries[i]; 2523 2524 retval = copyout(&entry, list_entry, sizeof(entry)); 2525 if (retval != 0) { 2526 printf("%s: CTL_GET_PORT_LIST: copyout " 2527 "returned %d\n", __func__, retval); 2528 break; 2529 } 2530 i++; 2531 list->fill_num++; 2532 list->fill_len += sizeof(entry); 2533 } 2534 mtx_unlock(&softc->ctl_lock); 2535 2536 /* 2537 * If this is non-zero, we had a copyout fault, so there's 2538 * probably no point in attempting to set the status inside 2539 * the structure. 2540 */ 2541 if (retval != 0) 2542 break; 2543 2544 if (list->dropped_num > 0) 2545 list->status = CTL_PORT_LIST_NEED_MORE_SPACE; 2546 else 2547 list->status = CTL_PORT_LIST_OK; 2548 break; 2549 } 2550 case CTL_DUMP_OOA: { 2551 struct ctl_lun *lun; 2552 union ctl_io *io; 2553 char printbuf[128]; 2554 struct sbuf sb; 2555 2556 mtx_lock(&softc->ctl_lock); 2557 printf("Dumping OOA queues:\n"); 2558 STAILQ_FOREACH(lun, &softc->lun_list, links) { 2559 mtx_lock(&lun->lun_lock); 2560 for (io = (union ctl_io *)TAILQ_FIRST( 2561 &lun->ooa_queue); io != NULL; 2562 io = (union ctl_io *)TAILQ_NEXT(&io->io_hdr, 2563 ooa_links)) { 2564 sbuf_new(&sb, printbuf, sizeof(printbuf), 2565 SBUF_FIXEDLEN); 2566 sbuf_printf(&sb, "LUN %jd tag 0x%04x%s%s%s%s: ", 2567 (intmax_t)lun->lun, 2568 io->scsiio.tag_num, 2569 (io->io_hdr.flags & 2570 CTL_FLAG_BLOCKED) ? "" : " BLOCKED", 2571 (io->io_hdr.flags & 2572 CTL_FLAG_DMA_INPROG) ? " DMA" : "", 2573 (io->io_hdr.flags & 2574 CTL_FLAG_ABORT) ? " ABORT" : "", 2575 (io->io_hdr.flags & 2576 CTL_FLAG_IS_WAS_ON_RTR) ? " RTR" : ""); 2577 ctl_scsi_command_string(&io->scsiio, NULL, &sb); 2578 sbuf_finish(&sb); 2579 printf("%s\n", sbuf_data(&sb)); 2580 } 2581 mtx_unlock(&lun->lun_lock); 2582 } 2583 printf("OOA queues dump done\n"); 2584 mtx_unlock(&softc->ctl_lock); 2585 break; 2586 } 2587 case CTL_GET_OOA: { 2588 struct ctl_lun *lun; 2589 struct ctl_ooa *ooa_hdr; 2590 struct ctl_ooa_entry *entries; 2591 uint32_t cur_fill_num; 2592 2593 ooa_hdr = (struct ctl_ooa *)addr; 2594 2595 if ((ooa_hdr->alloc_len == 0) 2596 || (ooa_hdr->alloc_num == 0)) { 2597 printf("%s: CTL_GET_OOA: alloc len %u and alloc num %u " 2598 "must be non-zero\n", __func__, 2599 ooa_hdr->alloc_len, ooa_hdr->alloc_num); 2600 retval = EINVAL; 2601 break; 2602 } 2603 2604 if (ooa_hdr->alloc_len != (ooa_hdr->alloc_num * 2605 sizeof(struct ctl_ooa_entry))) { 2606 printf("%s: CTL_GET_OOA: alloc len %u must be alloc " 2607 "num %d * sizeof(struct ctl_ooa_entry) %zd\n", 2608 __func__, ooa_hdr->alloc_len, 2609 ooa_hdr->alloc_num,sizeof(struct ctl_ooa_entry)); 2610 retval = EINVAL; 2611 break; 2612 } 2613 2614 entries = malloc(ooa_hdr->alloc_len, M_CTL, M_WAITOK | M_ZERO); 2615 if (entries == NULL) { 2616 printf("%s: could not allocate %d bytes for OOA " 2617 "dump\n", __func__, ooa_hdr->alloc_len); 2618 retval = ENOMEM; 2619 break; 2620 } 2621 2622 mtx_lock(&softc->ctl_lock); 2623 if (((ooa_hdr->flags & CTL_OOA_FLAG_ALL_LUNS) == 0) 2624 && ((ooa_hdr->lun_num >= CTL_MAX_LUNS) 2625 || (softc->ctl_luns[ooa_hdr->lun_num] == NULL))) { 2626 mtx_unlock(&softc->ctl_lock); 2627 free(entries, M_CTL); 2628 printf("%s: CTL_GET_OOA: invalid LUN %ju\n", 2629 __func__, (uintmax_t)ooa_hdr->lun_num); 2630 retval = EINVAL; 2631 break; 2632 } 2633 2634 cur_fill_num = 0; 2635 2636 if (ooa_hdr->flags & CTL_OOA_FLAG_ALL_LUNS) { 2637 STAILQ_FOREACH(lun, &softc->lun_list, links) { 2638 retval = ctl_ioctl_fill_ooa(lun, &cur_fill_num, 2639 ooa_hdr, entries); 2640 if (retval != 0) 2641 break; 2642 } 2643 if (retval != 0) { 2644 mtx_unlock(&softc->ctl_lock); 2645 free(entries, M_CTL); 2646 break; 2647 } 2648 } else { 2649 lun = softc->ctl_luns[ooa_hdr->lun_num]; 2650 2651 retval = ctl_ioctl_fill_ooa(lun, &cur_fill_num,ooa_hdr, 2652 entries); 2653 } 2654 mtx_unlock(&softc->ctl_lock); 2655 2656 ooa_hdr->fill_num = min(cur_fill_num, ooa_hdr->alloc_num); 2657 ooa_hdr->fill_len = ooa_hdr->fill_num * 2658 sizeof(struct ctl_ooa_entry); 2659 retval = copyout(entries, ooa_hdr->entries, ooa_hdr->fill_len); 2660 if (retval != 0) { 2661 printf("%s: error copying out %d bytes for OOA dump\n", 2662 __func__, ooa_hdr->fill_len); 2663 } 2664 2665 getbintime(&ooa_hdr->cur_bt); 2666 2667 if (cur_fill_num > ooa_hdr->alloc_num) { 2668 ooa_hdr->dropped_num = cur_fill_num -ooa_hdr->alloc_num; 2669 ooa_hdr->status = CTL_OOA_NEED_MORE_SPACE; 2670 } else { 2671 ooa_hdr->dropped_num = 0; 2672 ooa_hdr->status = CTL_OOA_OK; 2673 } 2674 2675 free(entries, M_CTL); 2676 break; 2677 } 2678 case CTL_CHECK_OOA: { 2679 union ctl_io *io; 2680 struct ctl_lun *lun; 2681 struct ctl_ooa_info *ooa_info; 2682 2683 2684 ooa_info = (struct ctl_ooa_info *)addr; 2685 2686 if (ooa_info->lun_id >= CTL_MAX_LUNS) { 2687 ooa_info->status = CTL_OOA_INVALID_LUN; 2688 break; 2689 } 2690 mtx_lock(&softc->ctl_lock); 2691 lun = softc->ctl_luns[ooa_info->lun_id]; 2692 if (lun == NULL) { 2693 mtx_unlock(&softc->ctl_lock); 2694 ooa_info->status = CTL_OOA_INVALID_LUN; 2695 break; 2696 } 2697 mtx_lock(&lun->lun_lock); 2698 mtx_unlock(&softc->ctl_lock); 2699 ooa_info->num_entries = 0; 2700 for (io = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); 2701 io != NULL; io = (union ctl_io *)TAILQ_NEXT( 2702 &io->io_hdr, ooa_links)) { 2703 ooa_info->num_entries++; 2704 } 2705 mtx_unlock(&lun->lun_lock); 2706 2707 ooa_info->status = CTL_OOA_SUCCESS; 2708 2709 break; 2710 } 2711 case CTL_HARD_START: 2712 case CTL_HARD_STOP: { 2713 struct ctl_fe_ioctl_startstop_info ss_info; 2714 struct cfi_metatask *metatask; 2715 struct mtx hs_mtx; 2716 2717 mtx_init(&hs_mtx, "HS Mutex", NULL, MTX_DEF); 2718 2719 cv_init(&ss_info.sem, "hard start/stop cv" ); 2720 2721 metatask = cfi_alloc_metatask(/*can_wait*/ 1); 2722 if (metatask == NULL) { 2723 retval = ENOMEM; 2724 mtx_destroy(&hs_mtx); 2725 break; 2726 } 2727 2728 if (cmd == CTL_HARD_START) 2729 metatask->tasktype = CFI_TASK_STARTUP; 2730 else 2731 metatask->tasktype = CFI_TASK_SHUTDOWN; 2732 2733 metatask->callback = ctl_ioctl_hard_startstop_callback; 2734 metatask->callback_arg = &ss_info; 2735 2736 cfi_action(metatask); 2737 2738 /* Wait for the callback */ 2739 mtx_lock(&hs_mtx); 2740 cv_wait_sig(&ss_info.sem, &hs_mtx); 2741 mtx_unlock(&hs_mtx); 2742 2743 /* 2744 * All information has been copied from the metatask by the 2745 * time cv_broadcast() is called, so we free the metatask here. 2746 */ 2747 cfi_free_metatask(metatask); 2748 2749 memcpy((void *)addr, &ss_info.hs_info, sizeof(ss_info.hs_info)); 2750 2751 mtx_destroy(&hs_mtx); 2752 break; 2753 } 2754 case CTL_BBRREAD: { 2755 struct ctl_bbrread_info *bbr_info; 2756 struct ctl_fe_ioctl_bbrread_info fe_bbr_info; 2757 struct mtx bbr_mtx; 2758 struct cfi_metatask *metatask; 2759 2760 bbr_info = (struct ctl_bbrread_info *)addr; 2761 2762 bzero(&fe_bbr_info, sizeof(fe_bbr_info)); 2763 2764 bzero(&bbr_mtx, sizeof(bbr_mtx)); 2765 mtx_init(&bbr_mtx, "BBR Mutex", NULL, MTX_DEF); 2766 2767 fe_bbr_info.bbr_info = bbr_info; 2768 fe_bbr_info.lock = &bbr_mtx; 2769 2770 cv_init(&fe_bbr_info.sem, "BBR read cv"); 2771 metatask = cfi_alloc_metatask(/*can_wait*/ 1); 2772 2773 if (metatask == NULL) { 2774 mtx_destroy(&bbr_mtx); 2775 cv_destroy(&fe_bbr_info.sem); 2776 retval = ENOMEM; 2777 break; 2778 } 2779 metatask->tasktype = CFI_TASK_BBRREAD; 2780 metatask->callback = ctl_ioctl_bbrread_callback; 2781 metatask->callback_arg = &fe_bbr_info; 2782 metatask->taskinfo.bbrread.lun_num = bbr_info->lun_num; 2783 metatask->taskinfo.bbrread.lba = bbr_info->lba; 2784 metatask->taskinfo.bbrread.len = bbr_info->len; 2785 2786 cfi_action(metatask); 2787 2788 mtx_lock(&bbr_mtx); 2789 while (fe_bbr_info.wakeup_done == 0) 2790 cv_wait_sig(&fe_bbr_info.sem, &bbr_mtx); 2791 mtx_unlock(&bbr_mtx); 2792 2793 bbr_info->status = metatask->status; 2794 bbr_info->bbr_status = metatask->taskinfo.bbrread.status; 2795 bbr_info->scsi_status = metatask->taskinfo.bbrread.scsi_status; 2796 memcpy(&bbr_info->sense_data, 2797 &metatask->taskinfo.bbrread.sense_data, 2798 ctl_min(sizeof(bbr_info->sense_data), 2799 sizeof(metatask->taskinfo.bbrread.sense_data))); 2800 2801 cfi_free_metatask(metatask); 2802 2803 mtx_destroy(&bbr_mtx); 2804 cv_destroy(&fe_bbr_info.sem); 2805 2806 break; 2807 } 2808 case CTL_DELAY_IO: { 2809 struct ctl_io_delay_info *delay_info; 2810#ifdef CTL_IO_DELAY 2811 struct ctl_lun *lun; 2812#endif /* CTL_IO_DELAY */ 2813 2814 delay_info = (struct ctl_io_delay_info *)addr; 2815 2816#ifdef CTL_IO_DELAY 2817 mtx_lock(&softc->ctl_lock); 2818 2819 if ((delay_info->lun_id >= CTL_MAX_LUNS) 2820 || (softc->ctl_luns[delay_info->lun_id] == NULL)) { 2821 delay_info->status = CTL_DELAY_STATUS_INVALID_LUN; 2822 } else { 2823 lun = softc->ctl_luns[delay_info->lun_id]; 2824 mtx_lock(&lun->lun_lock); 2825 2826 delay_info->status = CTL_DELAY_STATUS_OK; 2827 2828 switch (delay_info->delay_type) { 2829 case CTL_DELAY_TYPE_CONT: 2830 break; 2831 case CTL_DELAY_TYPE_ONESHOT: 2832 break; 2833 default: 2834 delay_info->status = 2835 CTL_DELAY_STATUS_INVALID_TYPE; 2836 break; 2837 } 2838 2839 switch (delay_info->delay_loc) { 2840 case CTL_DELAY_LOC_DATAMOVE: 2841 lun->delay_info.datamove_type = 2842 delay_info->delay_type; 2843 lun->delay_info.datamove_delay = 2844 delay_info->delay_secs; 2845 break; 2846 case CTL_DELAY_LOC_DONE: 2847 lun->delay_info.done_type = 2848 delay_info->delay_type; 2849 lun->delay_info.done_delay = 2850 delay_info->delay_secs; 2851 break; 2852 default: 2853 delay_info->status = 2854 CTL_DELAY_STATUS_INVALID_LOC; 2855 break; 2856 } 2857 mtx_unlock(&lun->lun_lock); 2858 } 2859 2860 mtx_unlock(&softc->ctl_lock); 2861#else 2862 delay_info->status = CTL_DELAY_STATUS_NOT_IMPLEMENTED; 2863#endif /* CTL_IO_DELAY */ 2864 break; 2865 } 2866 case CTL_REALSYNC_SET: { 2867 int *syncstate; 2868 2869 syncstate = (int *)addr; 2870 2871 mtx_lock(&softc->ctl_lock); 2872 switch (*syncstate) { 2873 case 0: 2874 softc->flags &= ~CTL_FLAG_REAL_SYNC; 2875 break; 2876 case 1: 2877 softc->flags |= CTL_FLAG_REAL_SYNC; 2878 break; 2879 default: 2880 retval = EINVAL; 2881 break; 2882 } 2883 mtx_unlock(&softc->ctl_lock); 2884 break; 2885 } 2886 case CTL_REALSYNC_GET: { 2887 int *syncstate; 2888 2889 syncstate = (int*)addr; 2890 2891 mtx_lock(&softc->ctl_lock); 2892 if (softc->flags & CTL_FLAG_REAL_SYNC) 2893 *syncstate = 1; 2894 else 2895 *syncstate = 0; 2896 mtx_unlock(&softc->ctl_lock); 2897 2898 break; 2899 } 2900 case CTL_SETSYNC: 2901 case CTL_GETSYNC: { 2902 struct ctl_sync_info *sync_info; 2903 struct ctl_lun *lun; 2904 2905 sync_info = (struct ctl_sync_info *)addr; 2906 2907 mtx_lock(&softc->ctl_lock); 2908 lun = softc->ctl_luns[sync_info->lun_id]; 2909 if (lun == NULL) { 2910 mtx_unlock(&softc->ctl_lock); 2911 sync_info->status = CTL_GS_SYNC_NO_LUN; 2912 } 2913 /* 2914 * Get or set the sync interval. We're not bounds checking 2915 * in the set case, hopefully the user won't do something 2916 * silly. 2917 */ 2918 mtx_lock(&lun->lun_lock); 2919 mtx_unlock(&softc->ctl_lock); 2920 if (cmd == CTL_GETSYNC) 2921 sync_info->sync_interval = lun->sync_interval; 2922 else 2923 lun->sync_interval = sync_info->sync_interval; 2924 mtx_unlock(&lun->lun_lock); 2925 2926 sync_info->status = CTL_GS_SYNC_OK; 2927 2928 break; 2929 } 2930 case CTL_GETSTATS: { 2931 struct ctl_stats *stats; 2932 struct ctl_lun *lun; 2933 int i; 2934 2935 stats = (struct ctl_stats *)addr; 2936 2937 if ((sizeof(struct ctl_lun_io_stats) * softc->num_luns) > 2938 stats->alloc_len) { 2939 stats->status = CTL_SS_NEED_MORE_SPACE; 2940 stats->num_luns = softc->num_luns; 2941 break; 2942 } 2943 /* 2944 * XXX KDM no locking here. If the LUN list changes, 2945 * things can blow up. 2946 */ 2947 for (i = 0, lun = STAILQ_FIRST(&softc->lun_list); lun != NULL; 2948 i++, lun = STAILQ_NEXT(lun, links)) { 2949 retval = copyout(&lun->stats, &stats->lun_stats[i], 2950 sizeof(lun->stats)); 2951 if (retval != 0) 2952 break; 2953 } 2954 stats->num_luns = softc->num_luns; 2955 stats->fill_len = sizeof(struct ctl_lun_io_stats) * 2956 softc->num_luns; 2957 stats->status = CTL_SS_OK; 2958#ifdef CTL_TIME_IO 2959 stats->flags = CTL_STATS_FLAG_TIME_VALID; 2960#else 2961 stats->flags = CTL_STATS_FLAG_NONE; 2962#endif 2963 getnanouptime(&stats->timestamp); 2964 break; 2965 } 2966 case CTL_ERROR_INJECT: { 2967 struct ctl_error_desc *err_desc, *new_err_desc; 2968 struct ctl_lun *lun; 2969 2970 err_desc = (struct ctl_error_desc *)addr; 2971 2972 new_err_desc = malloc(sizeof(*new_err_desc), M_CTL, 2973 M_WAITOK | M_ZERO); 2974 bcopy(err_desc, new_err_desc, sizeof(*new_err_desc)); 2975 2976 mtx_lock(&softc->ctl_lock); 2977 lun = softc->ctl_luns[err_desc->lun_id]; 2978 if (lun == NULL) { 2979 mtx_unlock(&softc->ctl_lock); 2980 free(new_err_desc, M_CTL); 2981 printf("%s: CTL_ERROR_INJECT: invalid LUN %ju\n", 2982 __func__, (uintmax_t)err_desc->lun_id); 2983 retval = EINVAL; 2984 break; 2985 } 2986 mtx_lock(&lun->lun_lock); 2987 mtx_unlock(&softc->ctl_lock); 2988 2989 /* 2990 * We could do some checking here to verify the validity 2991 * of the request, but given the complexity of error 2992 * injection requests, the checking logic would be fairly 2993 * complex. 2994 * 2995 * For now, if the request is invalid, it just won't get 2996 * executed and might get deleted. 2997 */ 2998 STAILQ_INSERT_TAIL(&lun->error_list, new_err_desc, links); 2999 3000 /* 3001 * XXX KDM check to make sure the serial number is unique, 3002 * in case we somehow manage to wrap. That shouldn't 3003 * happen for a very long time, but it's the right thing to 3004 * do. 3005 */ 3006 new_err_desc->serial = lun->error_serial; 3007 err_desc->serial = lun->error_serial; 3008 lun->error_serial++; 3009 3010 mtx_unlock(&lun->lun_lock); 3011 break; 3012 } 3013 case CTL_ERROR_INJECT_DELETE: { 3014 struct ctl_error_desc *delete_desc, *desc, *desc2; 3015 struct ctl_lun *lun; 3016 int delete_done; 3017 3018 delete_desc = (struct ctl_error_desc *)addr; 3019 delete_done = 0; 3020 3021 mtx_lock(&softc->ctl_lock); 3022 lun = softc->ctl_luns[delete_desc->lun_id]; 3023 if (lun == NULL) { 3024 mtx_unlock(&softc->ctl_lock); 3025 printf("%s: CTL_ERROR_INJECT_DELETE: invalid LUN %ju\n", 3026 __func__, (uintmax_t)delete_desc->lun_id); 3027 retval = EINVAL; 3028 break; 3029 } 3030 mtx_lock(&lun->lun_lock); 3031 mtx_unlock(&softc->ctl_lock); 3032 STAILQ_FOREACH_SAFE(desc, &lun->error_list, links, desc2) { 3033 if (desc->serial != delete_desc->serial) 3034 continue; 3035 3036 STAILQ_REMOVE(&lun->error_list, desc, ctl_error_desc, 3037 links); 3038 free(desc, M_CTL); 3039 delete_done = 1; 3040 } 3041 mtx_unlock(&lun->lun_lock); 3042 if (delete_done == 0) { 3043 printf("%s: CTL_ERROR_INJECT_DELETE: can't find " 3044 "error serial %ju on LUN %u\n", __func__, 3045 delete_desc->serial, delete_desc->lun_id); 3046 retval = EINVAL; 3047 break; 3048 } 3049 break; 3050 } 3051 case CTL_DUMP_STRUCTS: { 3052 int i, j, k, idx; 3053 struct ctl_port *port; 3054 struct ctl_frontend *fe; 3055 3056 mtx_lock(&softc->ctl_lock); 3057 printf("CTL Persistent Reservation information start:\n"); 3058 for (i = 0; i < CTL_MAX_LUNS; i++) { 3059 struct ctl_lun *lun; 3060 3061 lun = softc->ctl_luns[i]; 3062 3063 if ((lun == NULL) 3064 || ((lun->flags & CTL_LUN_DISABLED) != 0)) 3065 continue; 3066 3067 for (j = 0; j < (CTL_MAX_PORTS * 2); j++) { 3068 for (k = 0; k < CTL_MAX_INIT_PER_PORT; k++){ 3069 idx = j * CTL_MAX_INIT_PER_PORT + k; 3070 if (lun->pr_keys[idx] == 0) 3071 continue; 3072 printf(" LUN %d port %d iid %d key " 3073 "%#jx\n", i, j, k, 3074 (uintmax_t)lun->pr_keys[idx]); 3075 } 3076 } 3077 } 3078 printf("CTL Persistent Reservation information end\n"); 3079 printf("CTL Ports:\n"); 3080 STAILQ_FOREACH(port, &softc->port_list, links) { 3081 printf(" Port %d '%s' Frontend '%s' Type %u pp %d vp %d WWNN " 3082 "%#jx WWPN %#jx\n", port->targ_port, port->port_name, 3083 port->frontend->name, port->port_type, 3084 port->physical_port, port->virtual_port, 3085 (uintmax_t)port->wwnn, (uintmax_t)port->wwpn); 3086 for (j = 0; j < CTL_MAX_INIT_PER_PORT; j++) { 3087 if (port->wwpn_iid[j].in_use == 0 && 3088 port->wwpn_iid[j].wwpn == 0 && 3089 port->wwpn_iid[j].name == NULL) 3090 continue; 3091 3092 printf(" iid %u use %d WWPN %#jx '%s'\n", 3093 j, port->wwpn_iid[j].in_use, 3094 (uintmax_t)port->wwpn_iid[j].wwpn, 3095 port->wwpn_iid[j].name); 3096 } 3097 } 3098 printf("CTL Port information end\n"); 3099 mtx_unlock(&softc->ctl_lock); 3100 /* 3101 * XXX KDM calling this without a lock. We'd likely want 3102 * to drop the lock before calling the frontend's dump 3103 * routine anyway. 3104 */ 3105 printf("CTL Frontends:\n"); 3106 STAILQ_FOREACH(fe, &softc->fe_list, links) { 3107 printf(" Frontend '%s'\n", fe->name); 3108 if (fe->fe_dump != NULL) 3109 fe->fe_dump(); 3110 } 3111 printf("CTL Frontend information end\n"); 3112 break; 3113 } 3114 case CTL_LUN_REQ: { 3115 struct ctl_lun_req *lun_req; 3116 struct ctl_backend_driver *backend; 3117 3118 lun_req = (struct ctl_lun_req *)addr; 3119 3120 backend = ctl_backend_find(lun_req->backend); 3121 if (backend == NULL) { 3122 lun_req->status = CTL_LUN_ERROR; 3123 snprintf(lun_req->error_str, 3124 sizeof(lun_req->error_str), 3125 "Backend \"%s\" not found.", 3126 lun_req->backend); 3127 break; 3128 } 3129 if (lun_req->num_be_args > 0) { 3130 lun_req->kern_be_args = ctl_copyin_args( 3131 lun_req->num_be_args, 3132 lun_req->be_args, 3133 lun_req->error_str, 3134 sizeof(lun_req->error_str)); 3135 if (lun_req->kern_be_args == NULL) { 3136 lun_req->status = CTL_LUN_ERROR; 3137 break; 3138 } 3139 } 3140 3141 retval = backend->ioctl(dev, cmd, addr, flag, td); 3142 3143 if (lun_req->num_be_args > 0) { 3144 ctl_copyout_args(lun_req->num_be_args, 3145 lun_req->kern_be_args); 3146 ctl_free_args(lun_req->num_be_args, 3147 lun_req->kern_be_args); 3148 } 3149 break; 3150 } 3151 case CTL_LUN_LIST: { 3152 struct sbuf *sb; 3153 struct ctl_lun *lun; 3154 struct ctl_lun_list *list; 3155 struct ctl_option *opt; 3156 3157 list = (struct ctl_lun_list *)addr; 3158 3159 /* 3160 * Allocate a fixed length sbuf here, based on the length 3161 * of the user's buffer. We could allocate an auto-extending 3162 * buffer, and then tell the user how much larger our 3163 * amount of data is than his buffer, but that presents 3164 * some problems: 3165 * 3166 * 1. The sbuf(9) routines use a blocking malloc, and so 3167 * we can't hold a lock while calling them with an 3168 * auto-extending buffer. 3169 * 3170 * 2. There is not currently a LUN reference counting 3171 * mechanism, outside of outstanding transactions on 3172 * the LUN's OOA queue. So a LUN could go away on us 3173 * while we're getting the LUN number, backend-specific 3174 * information, etc. Thus, given the way things 3175 * currently work, we need to hold the CTL lock while 3176 * grabbing LUN information. 3177 * 3178 * So, from the user's standpoint, the best thing to do is 3179 * allocate what he thinks is a reasonable buffer length, 3180 * and then if he gets a CTL_LUN_LIST_NEED_MORE_SPACE error, 3181 * double the buffer length and try again. (And repeat 3182 * that until he succeeds.) 3183 */ 3184 sb = sbuf_new(NULL, NULL, list->alloc_len, SBUF_FIXEDLEN); 3185 if (sb == NULL) { 3186 list->status = CTL_LUN_LIST_ERROR; 3187 snprintf(list->error_str, sizeof(list->error_str), 3188 "Unable to allocate %d bytes for LUN list", 3189 list->alloc_len); 3190 break; 3191 } 3192 3193 sbuf_printf(sb, "<ctllunlist>\n"); 3194 3195 mtx_lock(&softc->ctl_lock); 3196 STAILQ_FOREACH(lun, &softc->lun_list, links) { 3197 mtx_lock(&lun->lun_lock); 3198 retval = sbuf_printf(sb, "<lun id=\"%ju\">\n", 3199 (uintmax_t)lun->lun); 3200 3201 /* 3202 * Bail out as soon as we see that we've overfilled 3203 * the buffer. 3204 */ 3205 if (retval != 0) 3206 break; 3207 3208 retval = sbuf_printf(sb, "\t<backend_type>%s" 3209 "</backend_type>\n", 3210 (lun->backend == NULL) ? "none" : 3211 lun->backend->name); 3212 3213 if (retval != 0) 3214 break; 3215 3216 retval = sbuf_printf(sb, "\t<lun_type>%d</lun_type>\n", 3217 lun->be_lun->lun_type); 3218 3219 if (retval != 0) 3220 break; 3221 3222 if (lun->backend == NULL) { 3223 retval = sbuf_printf(sb, "</lun>\n"); 3224 if (retval != 0) 3225 break; 3226 continue; 3227 } 3228 3229 retval = sbuf_printf(sb, "\t<size>%ju</size>\n", 3230 (lun->be_lun->maxlba > 0) ? 3231 lun->be_lun->maxlba + 1 : 0); 3232 3233 if (retval != 0) 3234 break; 3235 3236 retval = sbuf_printf(sb, "\t<blocksize>%u</blocksize>\n", 3237 lun->be_lun->blocksize); 3238 3239 if (retval != 0) 3240 break; 3241 3242 retval = sbuf_printf(sb, "\t<serial_number>"); 3243 3244 if (retval != 0) 3245 break; 3246 3247 retval = ctl_sbuf_printf_esc(sb, 3248 lun->be_lun->serial_num, 3249 sizeof(lun->be_lun->serial_num)); 3250 3251 if (retval != 0) 3252 break; 3253 3254 retval = sbuf_printf(sb, "</serial_number>\n"); 3255 3256 if (retval != 0) 3257 break; 3258 3259 retval = sbuf_printf(sb, "\t<device_id>"); 3260 3261 if (retval != 0) 3262 break; 3263 3264 retval = ctl_sbuf_printf_esc(sb, 3265 lun->be_lun->device_id, 3266 sizeof(lun->be_lun->device_id)); 3267 3268 if (retval != 0) 3269 break; 3270 3271 retval = sbuf_printf(sb, "</device_id>\n"); 3272 3273 if (retval != 0) 3274 break; 3275 3276 if (lun->backend->lun_info != NULL) { 3277 retval = lun->backend->lun_info(lun->be_lun->be_lun, sb); 3278 if (retval != 0) 3279 break; 3280 } 3281 STAILQ_FOREACH(opt, &lun->be_lun->options, links) { 3282 retval = sbuf_printf(sb, "\t<%s>%s</%s>\n", 3283 opt->name, opt->value, opt->name); 3284 if (retval != 0) 3285 break; 3286 } 3287 3288 retval = sbuf_printf(sb, "</lun>\n"); 3289 3290 if (retval != 0) 3291 break; 3292 mtx_unlock(&lun->lun_lock); 3293 } 3294 if (lun != NULL) 3295 mtx_unlock(&lun->lun_lock); 3296 mtx_unlock(&softc->ctl_lock); 3297 3298 if ((retval != 0) 3299 || ((retval = sbuf_printf(sb, "</ctllunlist>\n")) != 0)) { 3300 retval = 0; 3301 sbuf_delete(sb); 3302 list->status = CTL_LUN_LIST_NEED_MORE_SPACE; 3303 snprintf(list->error_str, sizeof(list->error_str), 3304 "Out of space, %d bytes is too small", 3305 list->alloc_len); 3306 break; 3307 } 3308 3309 sbuf_finish(sb); 3310 3311 retval = copyout(sbuf_data(sb), list->lun_xml, 3312 sbuf_len(sb) + 1); 3313 3314 list->fill_len = sbuf_len(sb) + 1; 3315 list->status = CTL_LUN_LIST_OK; 3316 sbuf_delete(sb); 3317 break; 3318 } 3319 case CTL_ISCSI: { 3320 struct ctl_iscsi *ci; 3321 struct ctl_frontend *fe; 3322 3323 ci = (struct ctl_iscsi *)addr; 3324 3325 fe = ctl_frontend_find("iscsi"); 3326 if (fe == NULL) { 3327 ci->status = CTL_ISCSI_ERROR; 3328 snprintf(ci->error_str, sizeof(ci->error_str), 3329 "Frontend \"iscsi\" not found."); 3330 break; 3331 } 3332 3333 retval = fe->ioctl(dev, cmd, addr, flag, td); 3334 break; 3335 } 3336 case CTL_PORT_REQ: { 3337 struct ctl_req *req; 3338 struct ctl_frontend *fe; 3339 3340 req = (struct ctl_req *)addr; 3341 3342 fe = ctl_frontend_find(req->driver); 3343 if (fe == NULL) { 3344 req->status = CTL_LUN_ERROR; 3345 snprintf(req->error_str, sizeof(req->error_str), 3346 "Frontend \"%s\" not found.", req->driver); 3347 break; 3348 } 3349 if (req->num_args > 0) { 3350 req->kern_args = ctl_copyin_args(req->num_args, 3351 req->args, req->error_str, sizeof(req->error_str)); 3352 if (req->kern_args == NULL) { 3353 req->status = CTL_LUN_ERROR; 3354 break; 3355 } 3356 } 3357 3358 retval = fe->ioctl(dev, cmd, addr, flag, td); 3359 3360 if (req->num_args > 0) { 3361 ctl_copyout_args(req->num_args, req->kern_args); 3362 ctl_free_args(req->num_args, req->kern_args); 3363 } 3364 break; 3365 } 3366 case CTL_PORT_LIST: { 3367 struct sbuf *sb; 3368 struct ctl_port *port; 3369 struct ctl_lun_list *list; 3370 struct ctl_option *opt; 3371 int j; 3372 3373 list = (struct ctl_lun_list *)addr; 3374 3375 sb = sbuf_new(NULL, NULL, list->alloc_len, SBUF_FIXEDLEN); 3376 if (sb == NULL) { 3377 list->status = CTL_LUN_LIST_ERROR; 3378 snprintf(list->error_str, sizeof(list->error_str), 3379 "Unable to allocate %d bytes for LUN list", 3380 list->alloc_len); 3381 break; 3382 } 3383 3384 sbuf_printf(sb, "<ctlportlist>\n"); 3385 3386 mtx_lock(&softc->ctl_lock); 3387 STAILQ_FOREACH(port, &softc->port_list, links) { 3388 retval = sbuf_printf(sb, "<targ_port id=\"%ju\">\n", 3389 (uintmax_t)port->targ_port); 3390 3391 /* 3392 * Bail out as soon as we see that we've overfilled 3393 * the buffer. 3394 */ 3395 if (retval != 0) 3396 break; 3397 3398 retval = sbuf_printf(sb, "\t<frontend_type>%s" 3399 "</frontend_type>\n", port->frontend->name); 3400 if (retval != 0) 3401 break; 3402 3403 retval = sbuf_printf(sb, "\t<port_type>%d</port_type>\n", 3404 port->port_type); 3405 if (retval != 0) 3406 break; 3407 3408 retval = sbuf_printf(sb, "\t<online>%s</online>\n", 3409 (port->status & CTL_PORT_STATUS_ONLINE) ? "YES" : "NO"); 3410 if (retval != 0) 3411 break; 3412 3413 retval = sbuf_printf(sb, "\t<port_name>%s</port_name>\n", 3414 port->port_name); 3415 if (retval != 0) 3416 break; 3417 3418 retval = sbuf_printf(sb, "\t<physical_port>%d</physical_port>\n", 3419 port->physical_port); 3420 if (retval != 0) 3421 break; 3422 3423 retval = sbuf_printf(sb, "\t<virtual_port>%d</virtual_port>\n", 3424 port->virtual_port); 3425 if (retval != 0) 3426 break; 3427 3428 if (port->target_devid != NULL) { 3429 sbuf_printf(sb, "\t<target>"); 3430 ctl_id_sbuf(port->target_devid, sb); 3431 sbuf_printf(sb, "</target>\n"); 3432 } 3433 3434 if (port->port_devid != NULL) { 3435 sbuf_printf(sb, "\t<port>"); 3436 ctl_id_sbuf(port->port_devid, sb); 3437 sbuf_printf(sb, "</port>\n"); 3438 } 3439 3440 if (port->port_info != NULL) { 3441 retval = port->port_info(port->onoff_arg, sb); 3442 if (retval != 0) 3443 break; 3444 } 3445 STAILQ_FOREACH(opt, &port->options, links) { 3446 retval = sbuf_printf(sb, "\t<%s>%s</%s>\n", 3447 opt->name, opt->value, opt->name); 3448 if (retval != 0) 3449 break; 3450 } 3451 3452 for (j = 0; j < CTL_MAX_INIT_PER_PORT; j++) { 3453 if (port->wwpn_iid[j].in_use == 0 || 3454 (port->wwpn_iid[j].wwpn == 0 && 3455 port->wwpn_iid[j].name == NULL)) 3456 continue; 3457 3458 if (port->wwpn_iid[j].name != NULL) 3459 retval = sbuf_printf(sb, 3460 "\t<initiator>%u %s</initiator>\n", 3461 j, port->wwpn_iid[j].name); 3462 else 3463 retval = sbuf_printf(sb, 3464 "\t<initiator>%u naa.%08jx</initiator>\n", 3465 j, port->wwpn_iid[j].wwpn); 3466 if (retval != 0) 3467 break; 3468 } 3469 if (retval != 0) 3470 break; 3471 3472 retval = sbuf_printf(sb, "</targ_port>\n"); 3473 if (retval != 0) 3474 break; 3475 } 3476 mtx_unlock(&softc->ctl_lock); 3477 3478 if ((retval != 0) 3479 || ((retval = sbuf_printf(sb, "</ctlportlist>\n")) != 0)) { 3480 retval = 0; 3481 sbuf_delete(sb); 3482 list->status = CTL_LUN_LIST_NEED_MORE_SPACE; 3483 snprintf(list->error_str, sizeof(list->error_str), 3484 "Out of space, %d bytes is too small", 3485 list->alloc_len); 3486 break; 3487 } 3488 3489 sbuf_finish(sb); 3490 3491 retval = copyout(sbuf_data(sb), list->lun_xml, 3492 sbuf_len(sb) + 1); 3493 3494 list->fill_len = sbuf_len(sb) + 1; 3495 list->status = CTL_LUN_LIST_OK; 3496 sbuf_delete(sb); 3497 break; 3498 } 3499 default: { 3500 /* XXX KDM should we fix this? */ 3501#if 0 3502 struct ctl_backend_driver *backend; 3503 unsigned int type; 3504 int found; 3505 3506 found = 0; 3507 3508 /* 3509 * We encode the backend type as the ioctl type for backend 3510 * ioctls. So parse it out here, and then search for a 3511 * backend of this type. 3512 */ 3513 type = _IOC_TYPE(cmd); 3514 3515 STAILQ_FOREACH(backend, &softc->be_list, links) { 3516 if (backend->type == type) { 3517 found = 1; 3518 break; 3519 } 3520 } 3521 if (found == 0) { 3522 printf("ctl: unknown ioctl command %#lx or backend " 3523 "%d\n", cmd, type); 3524 retval = EINVAL; 3525 break; 3526 } 3527 retval = backend->ioctl(dev, cmd, addr, flag, td); 3528#endif 3529 retval = ENOTTY; 3530 break; 3531 } 3532 } 3533 return (retval); 3534} 3535 3536uint32_t 3537ctl_get_initindex(struct ctl_nexus *nexus) 3538{ 3539 if (nexus->targ_port < CTL_MAX_PORTS) 3540 return (nexus->initid.id + 3541 (nexus->targ_port * CTL_MAX_INIT_PER_PORT)); 3542 else 3543 return (nexus->initid.id + 3544 ((nexus->targ_port - CTL_MAX_PORTS) * 3545 CTL_MAX_INIT_PER_PORT)); 3546} 3547 3548uint32_t 3549ctl_get_resindex(struct ctl_nexus *nexus) 3550{ 3551 return (nexus->initid.id + (nexus->targ_port * CTL_MAX_INIT_PER_PORT)); 3552} 3553 3554uint32_t 3555ctl_port_idx(int port_num) 3556{ 3557 if (port_num < CTL_MAX_PORTS) 3558 return(port_num); 3559 else 3560 return(port_num - CTL_MAX_PORTS); 3561} 3562 3563static uint32_t 3564ctl_map_lun(int port_num, uint32_t lun_id) 3565{ 3566 struct ctl_port *port; 3567 3568 port = control_softc->ctl_ports[ctl_port_idx(port_num)]; 3569 if (port == NULL) 3570 return (UINT32_MAX); 3571 if (port->lun_map == NULL) 3572 return (lun_id); 3573 return (port->lun_map(port->targ_lun_arg, lun_id)); 3574} 3575 3576static uint32_t 3577ctl_map_lun_back(int port_num, uint32_t lun_id) 3578{ 3579 struct ctl_port *port; 3580 uint32_t i; 3581 3582 port = control_softc->ctl_ports[ctl_port_idx(port_num)]; 3583 if (port->lun_map == NULL) 3584 return (lun_id); 3585 for (i = 0; i < CTL_MAX_LUNS; i++) { 3586 if (port->lun_map(port->targ_lun_arg, i) == lun_id) 3587 return (i); 3588 } 3589 return (UINT32_MAX); 3590} 3591 3592/* 3593 * Note: This only works for bitmask sizes that are at least 32 bits, and 3594 * that are a power of 2. 3595 */ 3596int 3597ctl_ffz(uint32_t *mask, uint32_t size) 3598{ 3599 uint32_t num_chunks, num_pieces; 3600 int i, j; 3601 3602 num_chunks = (size >> 5); 3603 if (num_chunks == 0) 3604 num_chunks++; 3605 num_pieces = ctl_min((sizeof(uint32_t) * 8), size); 3606 3607 for (i = 0; i < num_chunks; i++) { 3608 for (j = 0; j < num_pieces; j++) { 3609 if ((mask[i] & (1 << j)) == 0) 3610 return ((i << 5) + j); 3611 } 3612 } 3613 3614 return (-1); 3615} 3616 3617int 3618ctl_set_mask(uint32_t *mask, uint32_t bit) 3619{ 3620 uint32_t chunk, piece; 3621 3622 chunk = bit >> 5; 3623 piece = bit % (sizeof(uint32_t) * 8); 3624 3625 if ((mask[chunk] & (1 << piece)) != 0) 3626 return (-1); 3627 else 3628 mask[chunk] |= (1 << piece); 3629 3630 return (0); 3631} 3632 3633int 3634ctl_clear_mask(uint32_t *mask, uint32_t bit) 3635{ 3636 uint32_t chunk, piece; 3637 3638 chunk = bit >> 5; 3639 piece = bit % (sizeof(uint32_t) * 8); 3640 3641 if ((mask[chunk] & (1 << piece)) == 0) 3642 return (-1); 3643 else 3644 mask[chunk] &= ~(1 << piece); 3645 3646 return (0); 3647} 3648 3649int 3650ctl_is_set(uint32_t *mask, uint32_t bit) 3651{ 3652 uint32_t chunk, piece; 3653 3654 chunk = bit >> 5; 3655 piece = bit % (sizeof(uint32_t) * 8); 3656 3657 if ((mask[chunk] & (1 << piece)) == 0) 3658 return (0); 3659 else 3660 return (1); 3661} 3662 3663#ifdef unused 3664/* 3665 * The bus, target and lun are optional, they can be filled in later. 3666 * can_wait is used to determine whether we can wait on the malloc or not. 3667 */ 3668union ctl_io* 3669ctl_malloc_io(ctl_io_type io_type, uint32_t targ_port, uint32_t targ_target, 3670 uint32_t targ_lun, int can_wait) 3671{ 3672 union ctl_io *io; 3673 3674 if (can_wait) 3675 io = (union ctl_io *)malloc(sizeof(*io), M_CTL, M_WAITOK); 3676 else 3677 io = (union ctl_io *)malloc(sizeof(*io), M_CTL, M_NOWAIT); 3678 3679 if (io != NULL) { 3680 io->io_hdr.io_type = io_type; 3681 io->io_hdr.targ_port = targ_port; 3682 /* 3683 * XXX KDM this needs to change/go away. We need to move 3684 * to a preallocated pool of ctl_scsiio structures. 3685 */ 3686 io->io_hdr.nexus.targ_target.id = targ_target; 3687 io->io_hdr.nexus.targ_lun = targ_lun; 3688 } 3689 3690 return (io); 3691} 3692 3693void 3694ctl_kfree_io(union ctl_io *io) 3695{ 3696 free(io, M_CTL); 3697} 3698#endif /* unused */ 3699 3700/* 3701 * ctl_softc, pool_type, total_ctl_io are passed in. 3702 * npool is passed out. 3703 */ 3704int 3705ctl_pool_create(struct ctl_softc *ctl_softc, ctl_pool_type pool_type, 3706 uint32_t total_ctl_io, struct ctl_io_pool **npool) 3707{ 3708 uint32_t i; 3709 union ctl_io *cur_io, *next_io; 3710 struct ctl_io_pool *pool; 3711 int retval; 3712 3713 retval = 0; 3714 3715 pool = (struct ctl_io_pool *)malloc(sizeof(*pool), M_CTL, 3716 M_NOWAIT | M_ZERO); 3717 if (pool == NULL) { 3718 retval = ENOMEM; 3719 goto bailout; 3720 } 3721 3722 pool->type = pool_type; 3723 pool->ctl_softc = ctl_softc; 3724 3725 mtx_lock(&ctl_softc->pool_lock); 3726 pool->id = ctl_softc->cur_pool_id++; 3727 mtx_unlock(&ctl_softc->pool_lock); 3728 3729 pool->flags = CTL_POOL_FLAG_NONE; 3730 pool->refcount = 1; /* Reference for validity. */ 3731 STAILQ_INIT(&pool->free_queue); 3732 3733 /* 3734 * XXX KDM other options here: 3735 * - allocate a page at a time 3736 * - allocate one big chunk of memory. 3737 * Page allocation might work well, but would take a little more 3738 * tracking. 3739 */ 3740 for (i = 0; i < total_ctl_io; i++) { 3741 cur_io = (union ctl_io *)malloc(sizeof(*cur_io), M_CTLIO, 3742 M_NOWAIT); 3743 if (cur_io == NULL) { 3744 retval = ENOMEM; 3745 break; 3746 } 3747 cur_io->io_hdr.pool = pool; 3748 STAILQ_INSERT_TAIL(&pool->free_queue, &cur_io->io_hdr, links); 3749 pool->total_ctl_io++; 3750 pool->free_ctl_io++; 3751 } 3752 3753 if (retval != 0) { 3754 for (cur_io = (union ctl_io *)STAILQ_FIRST(&pool->free_queue); 3755 cur_io != NULL; cur_io = next_io) { 3756 next_io = (union ctl_io *)STAILQ_NEXT(&cur_io->io_hdr, 3757 links); 3758 STAILQ_REMOVE(&pool->free_queue, &cur_io->io_hdr, 3759 ctl_io_hdr, links); 3760 free(cur_io, M_CTLIO); 3761 } 3762 3763 free(pool, M_CTL); 3764 goto bailout; 3765 } 3766 mtx_lock(&ctl_softc->pool_lock); 3767 ctl_softc->num_pools++; 3768 STAILQ_INSERT_TAIL(&ctl_softc->io_pools, pool, links); 3769 /* 3770 * Increment our usage count if this is an external consumer, so we 3771 * can't get unloaded until the external consumer (most likely a 3772 * FETD) unloads and frees his pool. 3773 * 3774 * XXX KDM will this increment the caller's module use count, or 3775 * mine? 3776 */ 3777#if 0 3778 if ((pool_type != CTL_POOL_EMERGENCY) 3779 && (pool_type != CTL_POOL_INTERNAL) 3780 && (pool_type != CTL_POOL_4OTHERSC)) 3781 MOD_INC_USE_COUNT; 3782#endif 3783 3784 mtx_unlock(&ctl_softc->pool_lock); 3785 3786 *npool = pool; 3787 3788bailout: 3789 3790 return (retval); 3791} 3792 3793static int 3794ctl_pool_acquire(struct ctl_io_pool *pool) 3795{ 3796 3797 mtx_assert(&pool->ctl_softc->pool_lock, MA_OWNED); 3798 3799 if (pool->flags & CTL_POOL_FLAG_INVALID) 3800 return (EINVAL); 3801 3802 pool->refcount++; 3803 3804 return (0); 3805} 3806 3807static void 3808ctl_pool_release(struct ctl_io_pool *pool) 3809{ 3810 struct ctl_softc *ctl_softc = pool->ctl_softc; 3811 union ctl_io *io; 3812 3813 mtx_assert(&ctl_softc->pool_lock, MA_OWNED); 3814 3815 if (--pool->refcount != 0) 3816 return; 3817 3818 while ((io = (union ctl_io *)STAILQ_FIRST(&pool->free_queue)) != NULL) { 3819 STAILQ_REMOVE(&pool->free_queue, &io->io_hdr, ctl_io_hdr, 3820 links); 3821 free(io, M_CTLIO); 3822 } 3823 3824 STAILQ_REMOVE(&ctl_softc->io_pools, pool, ctl_io_pool, links); 3825 ctl_softc->num_pools--; 3826 3827 /* 3828 * XXX KDM will this decrement the caller's usage count or mine? 3829 */ 3830#if 0 3831 if ((pool->type != CTL_POOL_EMERGENCY) 3832 && (pool->type != CTL_POOL_INTERNAL) 3833 && (pool->type != CTL_POOL_4OTHERSC)) 3834 MOD_DEC_USE_COUNT; 3835#endif 3836 3837 free(pool, M_CTL); 3838} 3839 3840void 3841ctl_pool_free(struct ctl_io_pool *pool) 3842{ 3843 struct ctl_softc *ctl_softc; 3844 3845 if (pool == NULL) 3846 return; 3847 3848 ctl_softc = pool->ctl_softc; 3849 mtx_lock(&ctl_softc->pool_lock); 3850 pool->flags |= CTL_POOL_FLAG_INVALID; 3851 ctl_pool_release(pool); 3852 mtx_unlock(&ctl_softc->pool_lock); 3853} 3854 3855/* 3856 * This routine does not block (except for spinlocks of course). 3857 * It tries to allocate a ctl_io union from the caller's pool as quickly as 3858 * possible. 3859 */ 3860union ctl_io * 3861ctl_alloc_io(void *pool_ref) 3862{ 3863 union ctl_io *io; 3864 struct ctl_softc *ctl_softc; 3865 struct ctl_io_pool *pool, *npool; 3866 struct ctl_io_pool *emergency_pool; 3867 3868 pool = (struct ctl_io_pool *)pool_ref; 3869 3870 if (pool == NULL) { 3871 printf("%s: pool is NULL\n", __func__); 3872 return (NULL); 3873 } 3874 3875 emergency_pool = NULL; 3876 3877 ctl_softc = pool->ctl_softc; 3878 3879 mtx_lock(&ctl_softc->pool_lock); 3880 /* 3881 * First, try to get the io structure from the user's pool. 3882 */ 3883 if (ctl_pool_acquire(pool) == 0) { 3884 io = (union ctl_io *)STAILQ_FIRST(&pool->free_queue); 3885 if (io != NULL) { 3886 STAILQ_REMOVE_HEAD(&pool->free_queue, links); 3887 pool->total_allocated++; 3888 pool->free_ctl_io--; 3889 mtx_unlock(&ctl_softc->pool_lock); 3890 return (io); 3891 } else 3892 ctl_pool_release(pool); 3893 } 3894 /* 3895 * If he doesn't have any io structures left, search for an 3896 * emergency pool and grab one from there. 3897 */ 3898 STAILQ_FOREACH(npool, &ctl_softc->io_pools, links) { 3899 if (npool->type != CTL_POOL_EMERGENCY) 3900 continue; 3901 3902 if (ctl_pool_acquire(npool) != 0) 3903 continue; 3904 3905 emergency_pool = npool; 3906 3907 io = (union ctl_io *)STAILQ_FIRST(&npool->free_queue); 3908 if (io != NULL) { 3909 STAILQ_REMOVE_HEAD(&npool->free_queue, links); 3910 npool->total_allocated++; 3911 npool->free_ctl_io--; 3912 mtx_unlock(&ctl_softc->pool_lock); 3913 return (io); 3914 } else 3915 ctl_pool_release(npool); 3916 } 3917 3918 /* Drop the spinlock before we malloc */ 3919 mtx_unlock(&ctl_softc->pool_lock); 3920 3921 /* 3922 * The emergency pool (if it exists) didn't have one, so try an 3923 * atomic (i.e. nonblocking) malloc and see if we get lucky. 3924 */ 3925 io = (union ctl_io *)malloc(sizeof(*io), M_CTLIO, M_NOWAIT); 3926 if (io != NULL) { 3927 /* 3928 * If the emergency pool exists but is empty, add this 3929 * ctl_io to its list when it gets freed. 3930 */ 3931 if (emergency_pool != NULL) { 3932 mtx_lock(&ctl_softc->pool_lock); 3933 if (ctl_pool_acquire(emergency_pool) == 0) { 3934 io->io_hdr.pool = emergency_pool; 3935 emergency_pool->total_ctl_io++; 3936 /* 3937 * Need to bump this, otherwise 3938 * total_allocated and total_freed won't 3939 * match when we no longer have anything 3940 * outstanding. 3941 */ 3942 emergency_pool->total_allocated++; 3943 } 3944 mtx_unlock(&ctl_softc->pool_lock); 3945 } else 3946 io->io_hdr.pool = NULL; 3947 } 3948 3949 return (io); 3950} 3951 3952void 3953ctl_free_io(union ctl_io *io) 3954{ 3955 if (io == NULL) 3956 return; 3957 3958 /* 3959 * If this ctl_io has a pool, return it to that pool. 3960 */ 3961 if (io->io_hdr.pool != NULL) { 3962 struct ctl_io_pool *pool; 3963 3964 pool = (struct ctl_io_pool *)io->io_hdr.pool; 3965 mtx_lock(&pool->ctl_softc->pool_lock); 3966 io->io_hdr.io_type = 0xff; 3967 STAILQ_INSERT_TAIL(&pool->free_queue, &io->io_hdr, links); 3968 pool->total_freed++; 3969 pool->free_ctl_io++; 3970 ctl_pool_release(pool); 3971 mtx_unlock(&pool->ctl_softc->pool_lock); 3972 } else { 3973 /* 3974 * Otherwise, just free it. We probably malloced it and 3975 * the emergency pool wasn't available. 3976 */ 3977 free(io, M_CTLIO); 3978 } 3979 3980} 3981 3982void 3983ctl_zero_io(union ctl_io *io) 3984{ 3985 void *pool_ref; 3986 3987 if (io == NULL) 3988 return; 3989 3990 /* 3991 * May need to preserve linked list pointers at some point too. 3992 */ 3993 pool_ref = io->io_hdr.pool; 3994 3995 memset(io, 0, sizeof(*io)); 3996 3997 io->io_hdr.pool = pool_ref; 3998} 3999 4000/* 4001 * This routine is currently used for internal copies of ctl_ios that need 4002 * to persist for some reason after we've already returned status to the 4003 * FETD. (Thus the flag set.) 4004 * 4005 * XXX XXX 4006 * Note that this makes a blind copy of all fields in the ctl_io, except 4007 * for the pool reference. This includes any memory that has been 4008 * allocated! That memory will no longer be valid after done has been 4009 * called, so this would be VERY DANGEROUS for command that actually does 4010 * any reads or writes. Right now (11/7/2005), this is only used for immediate 4011 * start and stop commands, which don't transfer any data, so this is not a 4012 * problem. If it is used for anything else, the caller would also need to 4013 * allocate data buffer space and this routine would need to be modified to 4014 * copy the data buffer(s) as well. 4015 */ 4016void 4017ctl_copy_io(union ctl_io *src, union ctl_io *dest) 4018{ 4019 void *pool_ref; 4020 4021 if ((src == NULL) 4022 || (dest == NULL)) 4023 return; 4024 4025 /* 4026 * May need to preserve linked list pointers at some point too. 4027 */ 4028 pool_ref = dest->io_hdr.pool; 4029 4030 memcpy(dest, src, ctl_min(sizeof(*src), sizeof(*dest))); 4031 4032 dest->io_hdr.pool = pool_ref; 4033 /* 4034 * We need to know that this is an internal copy, and doesn't need 4035 * to get passed back to the FETD that allocated it. 4036 */ 4037 dest->io_hdr.flags |= CTL_FLAG_INT_COPY; 4038} 4039 4040static int 4041ctl_expand_number(const char *buf, uint64_t *num) 4042{ 4043 char *endptr; 4044 uint64_t number; 4045 unsigned shift; 4046 4047 number = strtoq(buf, &endptr, 0); 4048 4049 switch (tolower((unsigned char)*endptr)) { 4050 case 'e': 4051 shift = 60; 4052 break; 4053 case 'p': 4054 shift = 50; 4055 break; 4056 case 't': 4057 shift = 40; 4058 break; 4059 case 'g': 4060 shift = 30; 4061 break; 4062 case 'm': 4063 shift = 20; 4064 break; 4065 case 'k': 4066 shift = 10; 4067 break; 4068 case 'b': 4069 case '\0': /* No unit. */ 4070 *num = number; 4071 return (0); 4072 default: 4073 /* Unrecognized unit. */ 4074 return (-1); 4075 } 4076 4077 if ((number << shift) >> shift != number) { 4078 /* Overflow */ 4079 return (-1); 4080 } 4081 *num = number << shift; 4082 return (0); 4083} 4084 4085 4086/* 4087 * This routine could be used in the future to load default and/or saved 4088 * mode page parameters for a particuar lun. 4089 */ 4090static int 4091ctl_init_page_index(struct ctl_lun *lun) 4092{ 4093 int i; 4094 struct ctl_page_index *page_index; 4095 const char *value; 4096 uint64_t ival; 4097 4098 memcpy(&lun->mode_pages.index, page_index_template, 4099 sizeof(page_index_template)); 4100 4101 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 4102 4103 page_index = &lun->mode_pages.index[i]; 4104 /* 4105 * If this is a disk-only mode page, there's no point in 4106 * setting it up. For some pages, we have to have some 4107 * basic information about the disk in order to calculate the 4108 * mode page data. 4109 */ 4110 if ((lun->be_lun->lun_type != T_DIRECT) 4111 && (page_index->page_flags & CTL_PAGE_FLAG_DISK_ONLY)) 4112 continue; 4113 4114 switch (page_index->page_code & SMPH_PC_MASK) { 4115 case SMS_RW_ERROR_RECOVERY_PAGE: { 4116 if (page_index->subpage != SMS_SUBPAGE_PAGE_0) 4117 panic("subpage is incorrect!"); 4118 memcpy(&lun->mode_pages.rw_er_page[CTL_PAGE_CURRENT], 4119 &rw_er_page_default, 4120 sizeof(rw_er_page_default)); 4121 memcpy(&lun->mode_pages.rw_er_page[CTL_PAGE_CHANGEABLE], 4122 &rw_er_page_changeable, 4123 sizeof(rw_er_page_changeable)); 4124 memcpy(&lun->mode_pages.rw_er_page[CTL_PAGE_DEFAULT], 4125 &rw_er_page_default, 4126 sizeof(rw_er_page_default)); 4127 memcpy(&lun->mode_pages.rw_er_page[CTL_PAGE_SAVED], 4128 &rw_er_page_default, 4129 sizeof(rw_er_page_default)); 4130 page_index->page_data = 4131 (uint8_t *)lun->mode_pages.rw_er_page; 4132 break; 4133 } 4134 case SMS_FORMAT_DEVICE_PAGE: { 4135 struct scsi_format_page *format_page; 4136 4137 if (page_index->subpage != SMS_SUBPAGE_PAGE_0) 4138 panic("subpage is incorrect!"); 4139 4140 /* 4141 * Sectors per track are set above. Bytes per 4142 * sector need to be set here on a per-LUN basis. 4143 */ 4144 memcpy(&lun->mode_pages.format_page[CTL_PAGE_CURRENT], 4145 &format_page_default, 4146 sizeof(format_page_default)); 4147 memcpy(&lun->mode_pages.format_page[ 4148 CTL_PAGE_CHANGEABLE], &format_page_changeable, 4149 sizeof(format_page_changeable)); 4150 memcpy(&lun->mode_pages.format_page[CTL_PAGE_DEFAULT], 4151 &format_page_default, 4152 sizeof(format_page_default)); 4153 memcpy(&lun->mode_pages.format_page[CTL_PAGE_SAVED], 4154 &format_page_default, 4155 sizeof(format_page_default)); 4156 4157 format_page = &lun->mode_pages.format_page[ 4158 CTL_PAGE_CURRENT]; 4159 scsi_ulto2b(lun->be_lun->blocksize, 4160 format_page->bytes_per_sector); 4161 4162 format_page = &lun->mode_pages.format_page[ 4163 CTL_PAGE_DEFAULT]; 4164 scsi_ulto2b(lun->be_lun->blocksize, 4165 format_page->bytes_per_sector); 4166 4167 format_page = &lun->mode_pages.format_page[ 4168 CTL_PAGE_SAVED]; 4169 scsi_ulto2b(lun->be_lun->blocksize, 4170 format_page->bytes_per_sector); 4171 4172 page_index->page_data = 4173 (uint8_t *)lun->mode_pages.format_page; 4174 break; 4175 } 4176 case SMS_RIGID_DISK_PAGE: { 4177 struct scsi_rigid_disk_page *rigid_disk_page; 4178 uint32_t sectors_per_cylinder; 4179 uint64_t cylinders; 4180#ifndef __XSCALE__ 4181 int shift; 4182#endif /* !__XSCALE__ */ 4183 4184 if (page_index->subpage != SMS_SUBPAGE_PAGE_0) 4185 panic("invalid subpage value %d", 4186 page_index->subpage); 4187 4188 /* 4189 * Rotation rate and sectors per track are set 4190 * above. We calculate the cylinders here based on 4191 * capacity. Due to the number of heads and 4192 * sectors per track we're using, smaller arrays 4193 * may turn out to have 0 cylinders. Linux and 4194 * FreeBSD don't pay attention to these mode pages 4195 * to figure out capacity, but Solaris does. It 4196 * seems to deal with 0 cylinders just fine, and 4197 * works out a fake geometry based on the capacity. 4198 */ 4199 memcpy(&lun->mode_pages.rigid_disk_page[ 4200 CTL_PAGE_DEFAULT], &rigid_disk_page_default, 4201 sizeof(rigid_disk_page_default)); 4202 memcpy(&lun->mode_pages.rigid_disk_page[ 4203 CTL_PAGE_CHANGEABLE],&rigid_disk_page_changeable, 4204 sizeof(rigid_disk_page_changeable)); 4205 4206 sectors_per_cylinder = CTL_DEFAULT_SECTORS_PER_TRACK * 4207 CTL_DEFAULT_HEADS; 4208 4209 /* 4210 * The divide method here will be more accurate, 4211 * probably, but results in floating point being 4212 * used in the kernel on i386 (__udivdi3()). On the 4213 * XScale, though, __udivdi3() is implemented in 4214 * software. 4215 * 4216 * The shift method for cylinder calculation is 4217 * accurate if sectors_per_cylinder is a power of 4218 * 2. Otherwise it might be slightly off -- you 4219 * might have a bit of a truncation problem. 4220 */ 4221#ifdef __XSCALE__ 4222 cylinders = (lun->be_lun->maxlba + 1) / 4223 sectors_per_cylinder; 4224#else 4225 for (shift = 31; shift > 0; shift--) { 4226 if (sectors_per_cylinder & (1 << shift)) 4227 break; 4228 } 4229 cylinders = (lun->be_lun->maxlba + 1) >> shift; 4230#endif 4231 4232 /* 4233 * We've basically got 3 bytes, or 24 bits for the 4234 * cylinder size in the mode page. If we're over, 4235 * just round down to 2^24. 4236 */ 4237 if (cylinders > 0xffffff) 4238 cylinders = 0xffffff; 4239 4240 rigid_disk_page = &lun->mode_pages.rigid_disk_page[ 4241 CTL_PAGE_DEFAULT]; 4242 scsi_ulto3b(cylinders, rigid_disk_page->cylinders); 4243 4244 if ((value = ctl_get_opt(&lun->be_lun->options, 4245 "rpm")) != NULL) { 4246 scsi_ulto2b(strtol(value, NULL, 0), 4247 rigid_disk_page->rotation_rate); 4248 } 4249 4250 memcpy(&lun->mode_pages.rigid_disk_page[CTL_PAGE_CURRENT], 4251 &lun->mode_pages.rigid_disk_page[CTL_PAGE_DEFAULT], 4252 sizeof(rigid_disk_page_default)); 4253 memcpy(&lun->mode_pages.rigid_disk_page[CTL_PAGE_SAVED], 4254 &lun->mode_pages.rigid_disk_page[CTL_PAGE_DEFAULT], 4255 sizeof(rigid_disk_page_default)); 4256 4257 page_index->page_data = 4258 (uint8_t *)lun->mode_pages.rigid_disk_page; 4259 break; 4260 } 4261 case SMS_CACHING_PAGE: { 4262 struct scsi_caching_page *caching_page; 4263 4264 if (page_index->subpage != SMS_SUBPAGE_PAGE_0) 4265 panic("invalid subpage value %d", 4266 page_index->subpage); 4267 memcpy(&lun->mode_pages.caching_page[CTL_PAGE_DEFAULT], 4268 &caching_page_default, 4269 sizeof(caching_page_default)); 4270 memcpy(&lun->mode_pages.caching_page[ 4271 CTL_PAGE_CHANGEABLE], &caching_page_changeable, 4272 sizeof(caching_page_changeable)); 4273 memcpy(&lun->mode_pages.caching_page[CTL_PAGE_SAVED], 4274 &caching_page_default, 4275 sizeof(caching_page_default)); 4276 caching_page = &lun->mode_pages.caching_page[ 4277 CTL_PAGE_SAVED]; 4278 value = ctl_get_opt(&lun->be_lun->options, "writecache"); 4279 if (value != NULL && strcmp(value, "off") == 0) 4280 caching_page->flags1 &= ~SCP_WCE; 4281 value = ctl_get_opt(&lun->be_lun->options, "readcache"); 4282 if (value != NULL && strcmp(value, "off") == 0) 4283 caching_page->flags1 |= SCP_RCD; 4284 memcpy(&lun->mode_pages.caching_page[CTL_PAGE_CURRENT], 4285 &lun->mode_pages.caching_page[CTL_PAGE_SAVED], 4286 sizeof(caching_page_default)); 4287 page_index->page_data = 4288 (uint8_t *)lun->mode_pages.caching_page; 4289 break; 4290 } 4291 case SMS_CONTROL_MODE_PAGE: { 4292 struct scsi_control_page *control_page; 4293 4294 if (page_index->subpage != SMS_SUBPAGE_PAGE_0) 4295 panic("invalid subpage value %d", 4296 page_index->subpage); 4297 4298 memcpy(&lun->mode_pages.control_page[CTL_PAGE_DEFAULT], 4299 &control_page_default, 4300 sizeof(control_page_default)); 4301 memcpy(&lun->mode_pages.control_page[ 4302 CTL_PAGE_CHANGEABLE], &control_page_changeable, 4303 sizeof(control_page_changeable)); 4304 memcpy(&lun->mode_pages.control_page[CTL_PAGE_SAVED], 4305 &control_page_default, 4306 sizeof(control_page_default)); 4307 control_page = &lun->mode_pages.control_page[ 4308 CTL_PAGE_SAVED]; 4309 value = ctl_get_opt(&lun->be_lun->options, "reordering"); 4310 if (value != NULL && strcmp(value, "unrestricted") == 0) { 4311 control_page->queue_flags &= ~SCP_QUEUE_ALG_MASK; 4312 control_page->queue_flags |= SCP_QUEUE_ALG_UNRESTRICTED; 4313 } 4314 memcpy(&lun->mode_pages.control_page[CTL_PAGE_CURRENT], 4315 &lun->mode_pages.control_page[CTL_PAGE_SAVED], 4316 sizeof(control_page_default)); 4317 page_index->page_data = 4318 (uint8_t *)lun->mode_pages.control_page; 4319 break; 4320 4321 } 4322 case SMS_INFO_EXCEPTIONS_PAGE: { 4323 switch (page_index->subpage) { 4324 case SMS_SUBPAGE_PAGE_0: 4325 memcpy(&lun->mode_pages.ie_page[CTL_PAGE_CURRENT], 4326 &ie_page_default, 4327 sizeof(ie_page_default)); 4328 memcpy(&lun->mode_pages.ie_page[ 4329 CTL_PAGE_CHANGEABLE], &ie_page_changeable, 4330 sizeof(ie_page_changeable)); 4331 memcpy(&lun->mode_pages.ie_page[CTL_PAGE_DEFAULT], 4332 &ie_page_default, 4333 sizeof(ie_page_default)); 4334 memcpy(&lun->mode_pages.ie_page[CTL_PAGE_SAVED], 4335 &ie_page_default, 4336 sizeof(ie_page_default)); 4337 page_index->page_data = 4338 (uint8_t *)lun->mode_pages.ie_page; 4339 break; 4340 case 0x02: { 4341 struct ctl_logical_block_provisioning_page *page; 4342 4343 memcpy(&lun->mode_pages.lbp_page[CTL_PAGE_DEFAULT], 4344 &lbp_page_default, 4345 sizeof(lbp_page_default)); 4346 memcpy(&lun->mode_pages.lbp_page[ 4347 CTL_PAGE_CHANGEABLE], &lbp_page_changeable, 4348 sizeof(lbp_page_changeable)); 4349 memcpy(&lun->mode_pages.lbp_page[CTL_PAGE_SAVED], 4350 &lbp_page_default, 4351 sizeof(lbp_page_default)); 4352 page = &lun->mode_pages.lbp_page[CTL_PAGE_SAVED]; 4353 value = ctl_get_opt(&lun->be_lun->options, 4354 "avail-threshold"); 4355 if (value != NULL && 4356 ctl_expand_number(value, &ival) == 0) { 4357 page->descr[0].flags |= SLBPPD_ENABLED | 4358 SLBPPD_ARMING_DEC; 4359 if (lun->be_lun->blocksize) 4360 ival /= lun->be_lun->blocksize; 4361 else 4362 ival /= 512; 4363 scsi_ulto4b(ival >> CTL_LBP_EXPONENT, 4364 page->descr[0].count); 4365 } 4366 value = ctl_get_opt(&lun->be_lun->options, 4367 "used-threshold"); 4368 if (value != NULL && 4369 ctl_expand_number(value, &ival) == 0) { 4370 page->descr[1].flags |= SLBPPD_ENABLED | 4371 SLBPPD_ARMING_INC; 4372 if (lun->be_lun->blocksize) 4373 ival /= lun->be_lun->blocksize; 4374 else 4375 ival /= 512; 4376 scsi_ulto4b(ival >> CTL_LBP_EXPONENT, 4377 page->descr[1].count); 4378 } 4379 value = ctl_get_opt(&lun->be_lun->options, 4380 "pool-avail-threshold"); 4381 if (value != NULL && 4382 ctl_expand_number(value, &ival) == 0) { 4383 page->descr[2].flags |= SLBPPD_ENABLED | 4384 SLBPPD_ARMING_DEC; 4385 if (lun->be_lun->blocksize) 4386 ival /= lun->be_lun->blocksize; 4387 else 4388 ival /= 512; 4389 scsi_ulto4b(ival >> CTL_LBP_EXPONENT, 4390 page->descr[2].count); 4391 } 4392 value = ctl_get_opt(&lun->be_lun->options, 4393 "pool-used-threshold"); 4394 if (value != NULL && 4395 ctl_expand_number(value, &ival) == 0) { 4396 page->descr[3].flags |= SLBPPD_ENABLED | 4397 SLBPPD_ARMING_INC; 4398 if (lun->be_lun->blocksize) 4399 ival /= lun->be_lun->blocksize; 4400 else 4401 ival /= 512; 4402 scsi_ulto4b(ival >> CTL_LBP_EXPONENT, 4403 page->descr[3].count); 4404 } 4405 memcpy(&lun->mode_pages.lbp_page[CTL_PAGE_CURRENT], 4406 &lun->mode_pages.lbp_page[CTL_PAGE_SAVED], 4407 sizeof(lbp_page_default)); 4408 page_index->page_data = 4409 (uint8_t *)lun->mode_pages.lbp_page; 4410 }} 4411 break; 4412 } 4413 case SMS_VENDOR_SPECIFIC_PAGE:{ 4414 switch (page_index->subpage) { 4415 case DBGCNF_SUBPAGE_CODE: { 4416 struct copan_debugconf_subpage *current_page, 4417 *saved_page; 4418 4419 memcpy(&lun->mode_pages.debugconf_subpage[ 4420 CTL_PAGE_CURRENT], 4421 &debugconf_page_default, 4422 sizeof(debugconf_page_default)); 4423 memcpy(&lun->mode_pages.debugconf_subpage[ 4424 CTL_PAGE_CHANGEABLE], 4425 &debugconf_page_changeable, 4426 sizeof(debugconf_page_changeable)); 4427 memcpy(&lun->mode_pages.debugconf_subpage[ 4428 CTL_PAGE_DEFAULT], 4429 &debugconf_page_default, 4430 sizeof(debugconf_page_default)); 4431 memcpy(&lun->mode_pages.debugconf_subpage[ 4432 CTL_PAGE_SAVED], 4433 &debugconf_page_default, 4434 sizeof(debugconf_page_default)); 4435 page_index->page_data = 4436 (uint8_t *)lun->mode_pages.debugconf_subpage; 4437 4438 current_page = (struct copan_debugconf_subpage *) 4439 (page_index->page_data + 4440 (page_index->page_len * 4441 CTL_PAGE_CURRENT)); 4442 saved_page = (struct copan_debugconf_subpage *) 4443 (page_index->page_data + 4444 (page_index->page_len * 4445 CTL_PAGE_SAVED)); 4446 break; 4447 } 4448 default: 4449 panic("invalid subpage value %d", 4450 page_index->subpage); 4451 break; 4452 } 4453 break; 4454 } 4455 default: 4456 panic("invalid page value %d", 4457 page_index->page_code & SMPH_PC_MASK); 4458 break; 4459 } 4460 } 4461 4462 return (CTL_RETVAL_COMPLETE); 4463} 4464 4465static int 4466ctl_init_log_page_index(struct ctl_lun *lun) 4467{ 4468 struct ctl_page_index *page_index; 4469 int i, j, k, prev; 4470 4471 memcpy(&lun->log_pages.index, log_page_index_template, 4472 sizeof(log_page_index_template)); 4473 4474 prev = -1; 4475 for (i = 0, j = 0, k = 0; i < CTL_NUM_LOG_PAGES; i++) { 4476 4477 page_index = &lun->log_pages.index[i]; 4478 /* 4479 * If this is a disk-only mode page, there's no point in 4480 * setting it up. For some pages, we have to have some 4481 * basic information about the disk in order to calculate the 4482 * mode page data. 4483 */ 4484 if ((lun->be_lun->lun_type != T_DIRECT) 4485 && (page_index->page_flags & CTL_PAGE_FLAG_DISK_ONLY)) 4486 continue; 4487 4488 if (page_index->page_code == SLS_LOGICAL_BLOCK_PROVISIONING && 4489 ((lun->be_lun->flags & CTL_LUN_FLAG_UNMAP) == 0 || 4490 lun->backend->lun_attr == NULL)) 4491 continue; 4492 4493 if (page_index->page_code != prev) { 4494 lun->log_pages.pages_page[j] = page_index->page_code; 4495 prev = page_index->page_code; 4496 j++; 4497 } 4498 lun->log_pages.subpages_page[k*2] = page_index->page_code; 4499 lun->log_pages.subpages_page[k*2+1] = page_index->subpage; 4500 k++; 4501 } 4502 lun->log_pages.index[0].page_data = &lun->log_pages.pages_page[0]; 4503 lun->log_pages.index[0].page_len = j; 4504 lun->log_pages.index[1].page_data = &lun->log_pages.subpages_page[0]; 4505 lun->log_pages.index[1].page_len = k * 2; 4506 lun->log_pages.index[2].page_data = &lun->log_pages.lbp_page[0]; 4507 lun->log_pages.index[2].page_len = 12*CTL_NUM_LBP_PARAMS; 4508 4509 return (CTL_RETVAL_COMPLETE); 4510} 4511 4512static int 4513hex2bin(const char *str, uint8_t *buf, int buf_size) 4514{ 4515 int i; 4516 u_char c; 4517 4518 memset(buf, 0, buf_size); 4519 while (isspace(str[0])) 4520 str++; 4521 if (str[0] == '0' && (str[1] == 'x' || str[1] == 'X')) 4522 str += 2; 4523 buf_size *= 2; 4524 for (i = 0; str[i] != 0 && i < buf_size; i++) { 4525 c = str[i]; 4526 if (isdigit(c)) 4527 c -= '0'; 4528 else if (isalpha(c)) 4529 c -= isupper(c) ? 'A' - 10 : 'a' - 10; 4530 else 4531 break; 4532 if (c >= 16) 4533 break; 4534 if ((i & 1) == 0) 4535 buf[i / 2] |= (c << 4); 4536 else 4537 buf[i / 2] |= c; 4538 } 4539 return ((i + 1) / 2); 4540} 4541 4542/* 4543 * LUN allocation. 4544 * 4545 * Requirements: 4546 * - caller allocates and zeros LUN storage, or passes in a NULL LUN if he 4547 * wants us to allocate the LUN and he can block. 4548 * - ctl_softc is always set 4549 * - be_lun is set if the LUN has a backend (needed for disk LUNs) 4550 * 4551 * Returns 0 for success, non-zero (errno) for failure. 4552 */ 4553static int 4554ctl_alloc_lun(struct ctl_softc *ctl_softc, struct ctl_lun *ctl_lun, 4555 struct ctl_be_lun *const be_lun, struct ctl_id target_id) 4556{ 4557 struct ctl_lun *nlun, *lun; 4558 struct ctl_port *port; 4559 struct scsi_vpd_id_descriptor *desc; 4560 struct scsi_vpd_id_t10 *t10id; 4561 const char *eui, *naa, *scsiname, *vendor, *value; 4562 int lun_number, i, lun_malloced; 4563 int devidlen, idlen1, idlen2 = 0, len; 4564 4565 if (be_lun == NULL) 4566 return (EINVAL); 4567 4568 /* 4569 * We currently only support Direct Access or Processor LUN types. 4570 */ 4571 switch (be_lun->lun_type) { 4572 case T_DIRECT: 4573 break; 4574 case T_PROCESSOR: 4575 break; 4576 case T_SEQUENTIAL: 4577 case T_CHANGER: 4578 default: 4579 be_lun->lun_config_status(be_lun->be_lun, 4580 CTL_LUN_CONFIG_FAILURE); 4581 break; 4582 } 4583 if (ctl_lun == NULL) { 4584 lun = malloc(sizeof(*lun), M_CTL, M_WAITOK); 4585 lun_malloced = 1; 4586 } else { 4587 lun_malloced = 0; 4588 lun = ctl_lun; 4589 } 4590 4591 memset(lun, 0, sizeof(*lun)); 4592 if (lun_malloced) 4593 lun->flags = CTL_LUN_MALLOCED; 4594 4595 /* Generate LUN ID. */ 4596 devidlen = max(CTL_DEVID_MIN_LEN, 4597 strnlen(be_lun->device_id, CTL_DEVID_LEN)); 4598 idlen1 = sizeof(*t10id) + devidlen; 4599 len = sizeof(struct scsi_vpd_id_descriptor) + idlen1; 4600 scsiname = ctl_get_opt(&be_lun->options, "scsiname"); 4601 if (scsiname != NULL) { 4602 idlen2 = roundup2(strlen(scsiname) + 1, 4); 4603 len += sizeof(struct scsi_vpd_id_descriptor) + idlen2; 4604 } 4605 eui = ctl_get_opt(&be_lun->options, "eui"); 4606 if (eui != NULL) { 4607 len += sizeof(struct scsi_vpd_id_descriptor) + 16; 4608 } 4609 naa = ctl_get_opt(&be_lun->options, "naa"); 4610 if (naa != NULL) { 4611 len += sizeof(struct scsi_vpd_id_descriptor) + 16; 4612 } 4613 lun->lun_devid = malloc(sizeof(struct ctl_devid) + len, 4614 M_CTL, M_WAITOK | M_ZERO); 4615 desc = (struct scsi_vpd_id_descriptor *)lun->lun_devid->data; 4616 desc->proto_codeset = SVPD_ID_CODESET_ASCII; 4617 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | SVPD_ID_TYPE_T10; 4618 desc->length = idlen1; 4619 t10id = (struct scsi_vpd_id_t10 *)&desc->identifier[0]; 4620 memset(t10id->vendor, ' ', sizeof(t10id->vendor)); 4621 if ((vendor = ctl_get_opt(&be_lun->options, "vendor")) == NULL) { 4622 strncpy((char *)t10id->vendor, CTL_VENDOR, sizeof(t10id->vendor)); 4623 } else { 4624 strncpy(t10id->vendor, vendor, 4625 min(sizeof(t10id->vendor), strlen(vendor))); 4626 } 4627 strncpy((char *)t10id->vendor_spec_id, 4628 (char *)be_lun->device_id, devidlen); 4629 if (scsiname != NULL) { 4630 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 4631 desc->length); 4632 desc->proto_codeset = SVPD_ID_CODESET_UTF8; 4633 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | 4634 SVPD_ID_TYPE_SCSI_NAME; 4635 desc->length = idlen2; 4636 strlcpy(desc->identifier, scsiname, idlen2); 4637 } 4638 if (eui != NULL) { 4639 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 4640 desc->length); 4641 desc->proto_codeset = SVPD_ID_CODESET_BINARY; 4642 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | 4643 SVPD_ID_TYPE_EUI64; 4644 desc->length = hex2bin(eui, desc->identifier, 16); 4645 desc->length = desc->length > 12 ? 16 : 4646 (desc->length > 8 ? 12 : 8); 4647 len -= 16 - desc->length; 4648 } 4649 if (naa != NULL) { 4650 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 4651 desc->length); 4652 desc->proto_codeset = SVPD_ID_CODESET_BINARY; 4653 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | 4654 SVPD_ID_TYPE_NAA; 4655 desc->length = hex2bin(naa, desc->identifier, 16); 4656 desc->length = desc->length > 8 ? 16 : 8; 4657 len -= 16 - desc->length; 4658 } 4659 lun->lun_devid->len = len; 4660 4661 mtx_lock(&ctl_softc->ctl_lock); 4662 /* 4663 * See if the caller requested a particular LUN number. If so, see 4664 * if it is available. Otherwise, allocate the first available LUN. 4665 */ 4666 if (be_lun->flags & CTL_LUN_FLAG_ID_REQ) { 4667 if ((be_lun->req_lun_id > (CTL_MAX_LUNS - 1)) 4668 || (ctl_is_set(ctl_softc->ctl_lun_mask, be_lun->req_lun_id))) { 4669 mtx_unlock(&ctl_softc->ctl_lock); 4670 if (be_lun->req_lun_id > (CTL_MAX_LUNS - 1)) { 4671 printf("ctl: requested LUN ID %d is higher " 4672 "than CTL_MAX_LUNS - 1 (%d)\n", 4673 be_lun->req_lun_id, CTL_MAX_LUNS - 1); 4674 } else { 4675 /* 4676 * XXX KDM return an error, or just assign 4677 * another LUN ID in this case?? 4678 */ 4679 printf("ctl: requested LUN ID %d is already " 4680 "in use\n", be_lun->req_lun_id); 4681 } 4682 if (lun->flags & CTL_LUN_MALLOCED) 4683 free(lun, M_CTL); 4684 be_lun->lun_config_status(be_lun->be_lun, 4685 CTL_LUN_CONFIG_FAILURE); 4686 return (ENOSPC); 4687 } 4688 lun_number = be_lun->req_lun_id; 4689 } else { 4690 lun_number = ctl_ffz(ctl_softc->ctl_lun_mask, CTL_MAX_LUNS); 4691 if (lun_number == -1) { 4692 mtx_unlock(&ctl_softc->ctl_lock); 4693 printf("ctl: can't allocate LUN on target %ju, out of " 4694 "LUNs\n", (uintmax_t)target_id.id); 4695 if (lun->flags & CTL_LUN_MALLOCED) 4696 free(lun, M_CTL); 4697 be_lun->lun_config_status(be_lun->be_lun, 4698 CTL_LUN_CONFIG_FAILURE); 4699 return (ENOSPC); 4700 } 4701 } 4702 ctl_set_mask(ctl_softc->ctl_lun_mask, lun_number); 4703 4704 mtx_init(&lun->lun_lock, "CTL LUN", NULL, MTX_DEF); 4705 lun->target = target_id; 4706 lun->lun = lun_number; 4707 lun->be_lun = be_lun; 4708 /* 4709 * The processor LUN is always enabled. Disk LUNs come on line 4710 * disabled, and must be enabled by the backend. 4711 */ 4712 lun->flags |= CTL_LUN_DISABLED; 4713 lun->backend = be_lun->be; 4714 be_lun->ctl_lun = lun; 4715 be_lun->lun_id = lun_number; 4716 atomic_add_int(&be_lun->be->num_luns, 1); 4717 if (be_lun->flags & CTL_LUN_FLAG_OFFLINE) 4718 lun->flags |= CTL_LUN_OFFLINE; 4719 4720 if (be_lun->flags & CTL_LUN_FLAG_POWERED_OFF) 4721 lun->flags |= CTL_LUN_STOPPED; 4722 4723 if (be_lun->flags & CTL_LUN_FLAG_INOPERABLE) 4724 lun->flags |= CTL_LUN_INOPERABLE; 4725 4726 if (be_lun->flags & CTL_LUN_FLAG_PRIMARY) 4727 lun->flags |= CTL_LUN_PRIMARY_SC; 4728 4729 value = ctl_get_opt(&be_lun->options, "readonly"); 4730 if (value != NULL && strcmp(value, "on") == 0) 4731 lun->flags |= CTL_LUN_READONLY; 4732 4733 lun->ctl_softc = ctl_softc; 4734 TAILQ_INIT(&lun->ooa_queue); 4735 TAILQ_INIT(&lun->blocked_queue); 4736 STAILQ_INIT(&lun->error_list); 4737 ctl_tpc_lun_init(lun); 4738 4739 /* 4740 * Initialize the mode and log page index. 4741 */ 4742 ctl_init_page_index(lun); 4743 ctl_init_log_page_index(lun); 4744 4745 /* 4746 * Set the poweron UA for all initiators on this LUN only. 4747 */ 4748 for (i = 0; i < CTL_MAX_INITIATORS; i++) 4749 lun->pending_ua[i] = CTL_UA_POWERON; 4750 4751 /* 4752 * Now, before we insert this lun on the lun list, set the lun 4753 * inventory changed UA for all other luns. 4754 */ 4755 STAILQ_FOREACH(nlun, &ctl_softc->lun_list, links) { 4756 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 4757 nlun->pending_ua[i] |= CTL_UA_LUN_CHANGE; 4758 } 4759 } 4760 4761 STAILQ_INSERT_TAIL(&ctl_softc->lun_list, lun, links); 4762 4763 ctl_softc->ctl_luns[lun_number] = lun; 4764 4765 ctl_softc->num_luns++; 4766 4767 /* Setup statistics gathering */ 4768 lun->stats.device_type = be_lun->lun_type; 4769 lun->stats.lun_number = lun_number; 4770 if (lun->stats.device_type == T_DIRECT) 4771 lun->stats.blocksize = be_lun->blocksize; 4772 else 4773 lun->stats.flags = CTL_LUN_STATS_NO_BLOCKSIZE; 4774 for (i = 0;i < CTL_MAX_PORTS;i++) 4775 lun->stats.ports[i].targ_port = i; 4776 4777 mtx_unlock(&ctl_softc->ctl_lock); 4778 4779 lun->be_lun->lun_config_status(lun->be_lun->be_lun, CTL_LUN_CONFIG_OK); 4780 4781 /* 4782 * Run through each registered FETD and bring it online if it isn't 4783 * already. Enable the target ID if it hasn't been enabled, and 4784 * enable this particular LUN. 4785 */ 4786 STAILQ_FOREACH(port, &ctl_softc->port_list, links) { 4787 int retval; 4788 4789 retval = port->lun_enable(port->targ_lun_arg, target_id,lun_number); 4790 if (retval != 0) { 4791 printf("ctl_alloc_lun: FETD %s port %d returned error " 4792 "%d for lun_enable on target %ju lun %d\n", 4793 port->port_name, port->targ_port, retval, 4794 (uintmax_t)target_id.id, lun_number); 4795 } else 4796 port->status |= CTL_PORT_STATUS_LUN_ONLINE; 4797 } 4798 return (0); 4799} 4800 4801/* 4802 * Delete a LUN. 4803 * Assumptions: 4804 * - LUN has already been marked invalid and any pending I/O has been taken 4805 * care of. 4806 */ 4807static int 4808ctl_free_lun(struct ctl_lun *lun) 4809{ 4810 struct ctl_softc *softc; 4811#if 0 4812 struct ctl_port *port; 4813#endif 4814 struct ctl_lun *nlun; 4815 int i; 4816 4817 softc = lun->ctl_softc; 4818 4819 mtx_assert(&softc->ctl_lock, MA_OWNED); 4820 4821 STAILQ_REMOVE(&softc->lun_list, lun, ctl_lun, links); 4822 4823 ctl_clear_mask(softc->ctl_lun_mask, lun->lun); 4824 4825 softc->ctl_luns[lun->lun] = NULL; 4826 4827 if (!TAILQ_EMPTY(&lun->ooa_queue)) 4828 panic("Freeing a LUN %p with outstanding I/O!!\n", lun); 4829 4830 softc->num_luns--; 4831 4832 /* 4833 * XXX KDM this scheme only works for a single target/multiple LUN 4834 * setup. It needs to be revamped for a multiple target scheme. 4835 * 4836 * XXX KDM this results in port->lun_disable() getting called twice, 4837 * once when ctl_disable_lun() is called, and a second time here. 4838 * We really need to re-think the LUN disable semantics. There 4839 * should probably be several steps/levels to LUN removal: 4840 * - disable 4841 * - invalidate 4842 * - free 4843 * 4844 * Right now we only have a disable method when communicating to 4845 * the front end ports, at least for individual LUNs. 4846 */ 4847#if 0 4848 STAILQ_FOREACH(port, &softc->port_list, links) { 4849 int retval; 4850 4851 retval = port->lun_disable(port->targ_lun_arg, lun->target, 4852 lun->lun); 4853 if (retval != 0) { 4854 printf("ctl_free_lun: FETD %s port %d returned error " 4855 "%d for lun_disable on target %ju lun %jd\n", 4856 port->port_name, port->targ_port, retval, 4857 (uintmax_t)lun->target.id, (intmax_t)lun->lun); 4858 } 4859 4860 if (STAILQ_FIRST(&softc->lun_list) == NULL) { 4861 port->status &= ~CTL_PORT_STATUS_LUN_ONLINE; 4862 4863 retval = port->targ_disable(port->targ_lun_arg,lun->target); 4864 if (retval != 0) { 4865 printf("ctl_free_lun: FETD %s port %d " 4866 "returned error %d for targ_disable on " 4867 "target %ju\n", port->port_name, 4868 port->targ_port, retval, 4869 (uintmax_t)lun->target.id); 4870 } else 4871 port->status &= ~CTL_PORT_STATUS_TARG_ONLINE; 4872 4873 if ((port->status & CTL_PORT_STATUS_TARG_ONLINE) != 0) 4874 continue; 4875 4876#if 0 4877 port->port_offline(port->onoff_arg); 4878 port->status &= ~CTL_PORT_STATUS_ONLINE; 4879#endif 4880 } 4881 } 4882#endif 4883 4884 /* 4885 * Tell the backend to free resources, if this LUN has a backend. 4886 */ 4887 atomic_subtract_int(&lun->be_lun->be->num_luns, 1); 4888 lun->be_lun->lun_shutdown(lun->be_lun->be_lun); 4889 4890 ctl_tpc_lun_shutdown(lun); 4891 mtx_destroy(&lun->lun_lock); 4892 free(lun->lun_devid, M_CTL); 4893 free(lun->write_buffer, M_CTL); 4894 if (lun->flags & CTL_LUN_MALLOCED) 4895 free(lun, M_CTL); 4896 4897 STAILQ_FOREACH(nlun, &softc->lun_list, links) { 4898 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 4899 nlun->pending_ua[i] |= CTL_UA_LUN_CHANGE; 4900 } 4901 } 4902 4903 return (0); 4904} 4905 4906static void 4907ctl_create_lun(struct ctl_be_lun *be_lun) 4908{ 4909 struct ctl_softc *ctl_softc; 4910 4911 ctl_softc = control_softc; 4912 4913 /* 4914 * ctl_alloc_lun() should handle all potential failure cases. 4915 */ 4916 ctl_alloc_lun(ctl_softc, NULL, be_lun, ctl_softc->target); 4917} 4918 4919int 4920ctl_add_lun(struct ctl_be_lun *be_lun) 4921{ 4922 struct ctl_softc *ctl_softc = control_softc; 4923 4924 mtx_lock(&ctl_softc->ctl_lock); 4925 STAILQ_INSERT_TAIL(&ctl_softc->pending_lun_queue, be_lun, links); 4926 mtx_unlock(&ctl_softc->ctl_lock); 4927 wakeup(&ctl_softc->pending_lun_queue); 4928 4929 return (0); 4930} 4931 4932int 4933ctl_enable_lun(struct ctl_be_lun *be_lun) 4934{ 4935 struct ctl_softc *ctl_softc; 4936 struct ctl_port *port, *nport; 4937 struct ctl_lun *lun; 4938 int retval; 4939 4940 ctl_softc = control_softc; 4941 4942 lun = (struct ctl_lun *)be_lun->ctl_lun; 4943 4944 mtx_lock(&ctl_softc->ctl_lock); 4945 mtx_lock(&lun->lun_lock); 4946 if ((lun->flags & CTL_LUN_DISABLED) == 0) { 4947 /* 4948 * eh? Why did we get called if the LUN is already 4949 * enabled? 4950 */ 4951 mtx_unlock(&lun->lun_lock); 4952 mtx_unlock(&ctl_softc->ctl_lock); 4953 return (0); 4954 } 4955 lun->flags &= ~CTL_LUN_DISABLED; 4956 mtx_unlock(&lun->lun_lock); 4957 4958 for (port = STAILQ_FIRST(&ctl_softc->port_list); port != NULL; port = nport) { 4959 nport = STAILQ_NEXT(port, links); 4960 4961 /* 4962 * Drop the lock while we call the FETD's enable routine. 4963 * This can lead to a callback into CTL (at least in the 4964 * case of the internal initiator frontend. 4965 */ 4966 mtx_unlock(&ctl_softc->ctl_lock); 4967 retval = port->lun_enable(port->targ_lun_arg, lun->target,lun->lun); 4968 mtx_lock(&ctl_softc->ctl_lock); 4969 if (retval != 0) { 4970 printf("%s: FETD %s port %d returned error " 4971 "%d for lun_enable on target %ju lun %jd\n", 4972 __func__, port->port_name, port->targ_port, retval, 4973 (uintmax_t)lun->target.id, (intmax_t)lun->lun); 4974 } 4975#if 0 4976 else { 4977 /* NOTE: TODO: why does lun enable affect port status? */ 4978 port->status |= CTL_PORT_STATUS_LUN_ONLINE; 4979 } 4980#endif 4981 } 4982 4983 mtx_unlock(&ctl_softc->ctl_lock); 4984 4985 return (0); 4986} 4987 4988int 4989ctl_disable_lun(struct ctl_be_lun *be_lun) 4990{ 4991 struct ctl_softc *ctl_softc; 4992 struct ctl_port *port; 4993 struct ctl_lun *lun; 4994 int retval; 4995 4996 ctl_softc = control_softc; 4997 4998 lun = (struct ctl_lun *)be_lun->ctl_lun; 4999 5000 mtx_lock(&ctl_softc->ctl_lock); 5001 mtx_lock(&lun->lun_lock); 5002 if (lun->flags & CTL_LUN_DISABLED) { 5003 mtx_unlock(&lun->lun_lock); 5004 mtx_unlock(&ctl_softc->ctl_lock); 5005 return (0); 5006 } 5007 lun->flags |= CTL_LUN_DISABLED; 5008 mtx_unlock(&lun->lun_lock); 5009 5010 STAILQ_FOREACH(port, &ctl_softc->port_list, links) { 5011 mtx_unlock(&ctl_softc->ctl_lock); 5012 /* 5013 * Drop the lock before we call the frontend's disable 5014 * routine, to avoid lock order reversals. 5015 * 5016 * XXX KDM what happens if the frontend list changes while 5017 * we're traversing it? It's unlikely, but should be handled. 5018 */ 5019 retval = port->lun_disable(port->targ_lun_arg, lun->target, 5020 lun->lun); 5021 mtx_lock(&ctl_softc->ctl_lock); 5022 if (retval != 0) { 5023 printf("ctl_alloc_lun: FETD %s port %d returned error " 5024 "%d for lun_disable on target %ju lun %jd\n", 5025 port->port_name, port->targ_port, retval, 5026 (uintmax_t)lun->target.id, (intmax_t)lun->lun); 5027 } 5028 } 5029 5030 mtx_unlock(&ctl_softc->ctl_lock); 5031 5032 return (0); 5033} 5034 5035int 5036ctl_start_lun(struct ctl_be_lun *be_lun) 5037{ 5038 struct ctl_softc *ctl_softc; 5039 struct ctl_lun *lun; 5040 5041 ctl_softc = control_softc; 5042 5043 lun = (struct ctl_lun *)be_lun->ctl_lun; 5044 5045 mtx_lock(&lun->lun_lock); 5046 lun->flags &= ~CTL_LUN_STOPPED; 5047 mtx_unlock(&lun->lun_lock); 5048 5049 return (0); 5050} 5051 5052int 5053ctl_stop_lun(struct ctl_be_lun *be_lun) 5054{ 5055 struct ctl_softc *ctl_softc; 5056 struct ctl_lun *lun; 5057 5058 ctl_softc = control_softc; 5059 5060 lun = (struct ctl_lun *)be_lun->ctl_lun; 5061 5062 mtx_lock(&lun->lun_lock); 5063 lun->flags |= CTL_LUN_STOPPED; 5064 mtx_unlock(&lun->lun_lock); 5065 5066 return (0); 5067} 5068 5069int 5070ctl_lun_offline(struct ctl_be_lun *be_lun) 5071{ 5072 struct ctl_softc *ctl_softc; 5073 struct ctl_lun *lun; 5074 5075 ctl_softc = control_softc; 5076 5077 lun = (struct ctl_lun *)be_lun->ctl_lun; 5078 5079 mtx_lock(&lun->lun_lock); 5080 lun->flags |= CTL_LUN_OFFLINE; 5081 mtx_unlock(&lun->lun_lock); 5082 5083 return (0); 5084} 5085 5086int 5087ctl_lun_online(struct ctl_be_lun *be_lun) 5088{ 5089 struct ctl_softc *ctl_softc; 5090 struct ctl_lun *lun; 5091 5092 ctl_softc = control_softc; 5093 5094 lun = (struct ctl_lun *)be_lun->ctl_lun; 5095 5096 mtx_lock(&lun->lun_lock); 5097 lun->flags &= ~CTL_LUN_OFFLINE; 5098 mtx_unlock(&lun->lun_lock); 5099 5100 return (0); 5101} 5102 5103int 5104ctl_invalidate_lun(struct ctl_be_lun *be_lun) 5105{ 5106 struct ctl_softc *ctl_softc; 5107 struct ctl_lun *lun; 5108 5109 ctl_softc = control_softc; 5110 5111 lun = (struct ctl_lun *)be_lun->ctl_lun; 5112 5113 mtx_lock(&lun->lun_lock); 5114 5115 /* 5116 * The LUN needs to be disabled before it can be marked invalid. 5117 */ 5118 if ((lun->flags & CTL_LUN_DISABLED) == 0) { 5119 mtx_unlock(&lun->lun_lock); 5120 return (-1); 5121 } 5122 /* 5123 * Mark the LUN invalid. 5124 */ 5125 lun->flags |= CTL_LUN_INVALID; 5126 5127 /* 5128 * If there is nothing in the OOA queue, go ahead and free the LUN. 5129 * If we have something in the OOA queue, we'll free it when the 5130 * last I/O completes. 5131 */ 5132 if (TAILQ_EMPTY(&lun->ooa_queue)) { 5133 mtx_unlock(&lun->lun_lock); 5134 mtx_lock(&ctl_softc->ctl_lock); 5135 ctl_free_lun(lun); 5136 mtx_unlock(&ctl_softc->ctl_lock); 5137 } else 5138 mtx_unlock(&lun->lun_lock); 5139 5140 return (0); 5141} 5142 5143int 5144ctl_lun_inoperable(struct ctl_be_lun *be_lun) 5145{ 5146 struct ctl_softc *ctl_softc; 5147 struct ctl_lun *lun; 5148 5149 ctl_softc = control_softc; 5150 lun = (struct ctl_lun *)be_lun->ctl_lun; 5151 5152 mtx_lock(&lun->lun_lock); 5153 lun->flags |= CTL_LUN_INOPERABLE; 5154 mtx_unlock(&lun->lun_lock); 5155 5156 return (0); 5157} 5158 5159int 5160ctl_lun_operable(struct ctl_be_lun *be_lun) 5161{ 5162 struct ctl_softc *ctl_softc; 5163 struct ctl_lun *lun; 5164 5165 ctl_softc = control_softc; 5166 lun = (struct ctl_lun *)be_lun->ctl_lun; 5167 5168 mtx_lock(&lun->lun_lock); 5169 lun->flags &= ~CTL_LUN_INOPERABLE; 5170 mtx_unlock(&lun->lun_lock); 5171 5172 return (0); 5173} 5174 5175void 5176ctl_lun_capacity_changed(struct ctl_be_lun *be_lun) 5177{ 5178 struct ctl_lun *lun; 5179 struct ctl_softc *softc; 5180 int i; 5181 5182 softc = control_softc; 5183 5184 lun = (struct ctl_lun *)be_lun->ctl_lun; 5185 5186 mtx_lock(&lun->lun_lock); 5187 5188 for (i = 0; i < CTL_MAX_INITIATORS; i++) 5189 lun->pending_ua[i] |= CTL_UA_CAPACITY_CHANGED; 5190 5191 mtx_unlock(&lun->lun_lock); 5192} 5193 5194/* 5195 * Backend "memory move is complete" callback for requests that never 5196 * make it down to say RAIDCore's configuration code. 5197 */ 5198int 5199ctl_config_move_done(union ctl_io *io) 5200{ 5201 int retval; 5202 5203 retval = CTL_RETVAL_COMPLETE; 5204 5205 5206 CTL_DEBUG_PRINT(("ctl_config_move_done\n")); 5207 /* 5208 * XXX KDM this shouldn't happen, but what if it does? 5209 */ 5210 if (io->io_hdr.io_type != CTL_IO_SCSI) 5211 panic("I/O type isn't CTL_IO_SCSI!"); 5212 5213 if ((io->io_hdr.port_status == 0) 5214 && ((io->io_hdr.flags & CTL_FLAG_ABORT) == 0) 5215 && ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE)) 5216 io->io_hdr.status = CTL_SUCCESS; 5217 else if ((io->io_hdr.port_status != 0) 5218 && ((io->io_hdr.flags & CTL_FLAG_ABORT) == 0) 5219 && ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE)){ 5220 /* 5221 * For hardware error sense keys, the sense key 5222 * specific value is defined to be a retry count, 5223 * but we use it to pass back an internal FETD 5224 * error code. XXX KDM Hopefully the FETD is only 5225 * using 16 bits for an error code, since that's 5226 * all the space we have in the sks field. 5227 */ 5228 ctl_set_internal_failure(&io->scsiio, 5229 /*sks_valid*/ 1, 5230 /*retry_count*/ 5231 io->io_hdr.port_status); 5232 if (io->io_hdr.flags & CTL_FLAG_ALLOCATED) 5233 free(io->scsiio.kern_data_ptr, M_CTL); 5234 ctl_done(io); 5235 goto bailout; 5236 } 5237 5238 if (((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_IN) 5239 || ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_SUCCESS) 5240 || ((io->io_hdr.flags & CTL_FLAG_ABORT) != 0)) { 5241 /* 5242 * XXX KDM just assuming a single pointer here, and not a 5243 * S/G list. If we start using S/G lists for config data, 5244 * we'll need to know how to clean them up here as well. 5245 */ 5246 if (io->io_hdr.flags & CTL_FLAG_ALLOCATED) 5247 free(io->scsiio.kern_data_ptr, M_CTL); 5248 /* Hopefully the user has already set the status... */ 5249 ctl_done(io); 5250 } else { 5251 /* 5252 * XXX KDM now we need to continue data movement. Some 5253 * options: 5254 * - call ctl_scsiio() again? We don't do this for data 5255 * writes, because for those at least we know ahead of 5256 * time where the write will go and how long it is. For 5257 * config writes, though, that information is largely 5258 * contained within the write itself, thus we need to 5259 * parse out the data again. 5260 * 5261 * - Call some other function once the data is in? 5262 */ 5263 if (ctl_debug & CTL_DEBUG_CDB_DATA) 5264 ctl_data_print(io); 5265 5266 /* 5267 * XXX KDM call ctl_scsiio() again for now, and check flag 5268 * bits to see whether we're allocated or not. 5269 */ 5270 retval = ctl_scsiio(&io->scsiio); 5271 } 5272bailout: 5273 return (retval); 5274} 5275 5276/* 5277 * This gets called by a backend driver when it is done with a 5278 * data_submit method. 5279 */ 5280void 5281ctl_data_submit_done(union ctl_io *io) 5282{ 5283 /* 5284 * If the IO_CONT flag is set, we need to call the supplied 5285 * function to continue processing the I/O, instead of completing 5286 * the I/O just yet. 5287 * 5288 * If there is an error, though, we don't want to keep processing. 5289 * Instead, just send status back to the initiator. 5290 */ 5291 if ((io->io_hdr.flags & CTL_FLAG_IO_CONT) && 5292 (io->io_hdr.flags & CTL_FLAG_ABORT) == 0 && 5293 ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE || 5294 (io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS)) { 5295 io->scsiio.io_cont(io); 5296 return; 5297 } 5298 ctl_done(io); 5299} 5300 5301/* 5302 * This gets called by a backend driver when it is done with a 5303 * configuration write. 5304 */ 5305void 5306ctl_config_write_done(union ctl_io *io) 5307{ 5308 uint8_t *buf; 5309 5310 /* 5311 * If the IO_CONT flag is set, we need to call the supplied 5312 * function to continue processing the I/O, instead of completing 5313 * the I/O just yet. 5314 * 5315 * If there is an error, though, we don't want to keep processing. 5316 * Instead, just send status back to the initiator. 5317 */ 5318 if ((io->io_hdr.flags & CTL_FLAG_IO_CONT) && 5319 (io->io_hdr.flags & CTL_FLAG_ABORT) == 0 && 5320 ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE || 5321 (io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS)) { 5322 io->scsiio.io_cont(io); 5323 return; 5324 } 5325 /* 5326 * Since a configuration write can be done for commands that actually 5327 * have data allocated, like write buffer, and commands that have 5328 * no data, like start/stop unit, we need to check here. 5329 */ 5330 if (io->io_hdr.flags & CTL_FLAG_ALLOCATED) 5331 buf = io->scsiio.kern_data_ptr; 5332 else 5333 buf = NULL; 5334 ctl_done(io); 5335 if (buf) 5336 free(buf, M_CTL); 5337} 5338 5339/* 5340 * SCSI release command. 5341 */ 5342int 5343ctl_scsi_release(struct ctl_scsiio *ctsio) 5344{ 5345 int length, longid, thirdparty_id, resv_id; 5346 struct ctl_softc *ctl_softc; 5347 struct ctl_lun *lun; 5348 uint32_t residx; 5349 5350 length = 0; 5351 resv_id = 0; 5352 5353 CTL_DEBUG_PRINT(("ctl_scsi_release\n")); 5354 5355 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 5356 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5357 ctl_softc = control_softc; 5358 5359 switch (ctsio->cdb[0]) { 5360 case RELEASE_10: { 5361 struct scsi_release_10 *cdb; 5362 5363 cdb = (struct scsi_release_10 *)ctsio->cdb; 5364 5365 if (cdb->byte2 & SR10_LONGID) 5366 longid = 1; 5367 else 5368 thirdparty_id = cdb->thirdparty_id; 5369 5370 resv_id = cdb->resv_id; 5371 length = scsi_2btoul(cdb->length); 5372 break; 5373 } 5374 } 5375 5376 5377 /* 5378 * XXX KDM right now, we only support LUN reservation. We don't 5379 * support 3rd party reservations, or extent reservations, which 5380 * might actually need the parameter list. If we've gotten this 5381 * far, we've got a LUN reservation. Anything else got kicked out 5382 * above. So, according to SPC, ignore the length. 5383 */ 5384 length = 0; 5385 5386 if (((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) 5387 && (length > 0)) { 5388 ctsio->kern_data_ptr = malloc(length, M_CTL, M_WAITOK); 5389 ctsio->kern_data_len = length; 5390 ctsio->kern_total_len = length; 5391 ctsio->kern_data_resid = 0; 5392 ctsio->kern_rel_offset = 0; 5393 ctsio->kern_sg_entries = 0; 5394 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5395 ctsio->be_move_done = ctl_config_move_done; 5396 ctl_datamove((union ctl_io *)ctsio); 5397 5398 return (CTL_RETVAL_COMPLETE); 5399 } 5400 5401 if (length > 0) 5402 thirdparty_id = scsi_8btou64(ctsio->kern_data_ptr); 5403 5404 mtx_lock(&lun->lun_lock); 5405 5406 /* 5407 * According to SPC, it is not an error for an intiator to attempt 5408 * to release a reservation on a LUN that isn't reserved, or that 5409 * is reserved by another initiator. The reservation can only be 5410 * released, though, by the initiator who made it or by one of 5411 * several reset type events. 5412 */ 5413 if ((lun->flags & CTL_LUN_RESERVED) && (lun->res_idx == residx)) 5414 lun->flags &= ~CTL_LUN_RESERVED; 5415 5416 mtx_unlock(&lun->lun_lock); 5417 5418 ctsio->scsi_status = SCSI_STATUS_OK; 5419 ctsio->io_hdr.status = CTL_SUCCESS; 5420 5421 if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) { 5422 free(ctsio->kern_data_ptr, M_CTL); 5423 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED; 5424 } 5425 5426 ctl_done((union ctl_io *)ctsio); 5427 return (CTL_RETVAL_COMPLETE); 5428} 5429 5430int 5431ctl_scsi_reserve(struct ctl_scsiio *ctsio) 5432{ 5433 int extent, thirdparty, longid; 5434 int resv_id, length; 5435 uint64_t thirdparty_id; 5436 struct ctl_softc *ctl_softc; 5437 struct ctl_lun *lun; 5438 uint32_t residx; 5439 5440 extent = 0; 5441 thirdparty = 0; 5442 longid = 0; 5443 resv_id = 0; 5444 length = 0; 5445 thirdparty_id = 0; 5446 5447 CTL_DEBUG_PRINT(("ctl_reserve\n")); 5448 5449 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 5450 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5451 ctl_softc = control_softc; 5452 5453 switch (ctsio->cdb[0]) { 5454 case RESERVE_10: { 5455 struct scsi_reserve_10 *cdb; 5456 5457 cdb = (struct scsi_reserve_10 *)ctsio->cdb; 5458 5459 if (cdb->byte2 & SR10_LONGID) 5460 longid = 1; 5461 else 5462 thirdparty_id = cdb->thirdparty_id; 5463 5464 resv_id = cdb->resv_id; 5465 length = scsi_2btoul(cdb->length); 5466 break; 5467 } 5468 } 5469 5470 /* 5471 * XXX KDM right now, we only support LUN reservation. We don't 5472 * support 3rd party reservations, or extent reservations, which 5473 * might actually need the parameter list. If we've gotten this 5474 * far, we've got a LUN reservation. Anything else got kicked out 5475 * above. So, according to SPC, ignore the length. 5476 */ 5477 length = 0; 5478 5479 if (((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) 5480 && (length > 0)) { 5481 ctsio->kern_data_ptr = malloc(length, M_CTL, M_WAITOK); 5482 ctsio->kern_data_len = length; 5483 ctsio->kern_total_len = length; 5484 ctsio->kern_data_resid = 0; 5485 ctsio->kern_rel_offset = 0; 5486 ctsio->kern_sg_entries = 0; 5487 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5488 ctsio->be_move_done = ctl_config_move_done; 5489 ctl_datamove((union ctl_io *)ctsio); 5490 5491 return (CTL_RETVAL_COMPLETE); 5492 } 5493 5494 if (length > 0) 5495 thirdparty_id = scsi_8btou64(ctsio->kern_data_ptr); 5496 5497 mtx_lock(&lun->lun_lock); 5498 if ((lun->flags & CTL_LUN_RESERVED) && (lun->res_idx != residx)) { 5499 ctl_set_reservation_conflict(ctsio); 5500 goto bailout; 5501 } 5502 5503 lun->flags |= CTL_LUN_RESERVED; 5504 lun->res_idx = residx; 5505 5506 ctsio->scsi_status = SCSI_STATUS_OK; 5507 ctsio->io_hdr.status = CTL_SUCCESS; 5508 5509bailout: 5510 mtx_unlock(&lun->lun_lock); 5511 5512 if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) { 5513 free(ctsio->kern_data_ptr, M_CTL); 5514 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED; 5515 } 5516 5517 ctl_done((union ctl_io *)ctsio); 5518 return (CTL_RETVAL_COMPLETE); 5519} 5520 5521int 5522ctl_start_stop(struct ctl_scsiio *ctsio) 5523{ 5524 struct scsi_start_stop_unit *cdb; 5525 struct ctl_lun *lun; 5526 struct ctl_softc *ctl_softc; 5527 int retval; 5528 5529 CTL_DEBUG_PRINT(("ctl_start_stop\n")); 5530 5531 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5532 ctl_softc = control_softc; 5533 retval = 0; 5534 5535 cdb = (struct scsi_start_stop_unit *)ctsio->cdb; 5536 5537 /* 5538 * XXX KDM 5539 * We don't support the immediate bit on a stop unit. In order to 5540 * do that, we would need to code up a way to know that a stop is 5541 * pending, and hold off any new commands until it completes, one 5542 * way or another. Then we could accept or reject those commands 5543 * depending on its status. We would almost need to do the reverse 5544 * of what we do below for an immediate start -- return the copy of 5545 * the ctl_io to the FETD with status to send to the host (and to 5546 * free the copy!) and then free the original I/O once the stop 5547 * actually completes. That way, the OOA queue mechanism can work 5548 * to block commands that shouldn't proceed. Another alternative 5549 * would be to put the copy in the queue in place of the original, 5550 * and return the original back to the caller. That could be 5551 * slightly safer.. 5552 */ 5553 if ((cdb->byte2 & SSS_IMMED) 5554 && ((cdb->how & SSS_START) == 0)) { 5555 ctl_set_invalid_field(ctsio, 5556 /*sks_valid*/ 1, 5557 /*command*/ 1, 5558 /*field*/ 1, 5559 /*bit_valid*/ 1, 5560 /*bit*/ 0); 5561 ctl_done((union ctl_io *)ctsio); 5562 return (CTL_RETVAL_COMPLETE); 5563 } 5564 5565 if ((lun->flags & CTL_LUN_PR_RESERVED) 5566 && ((cdb->how & SSS_START)==0)) { 5567 uint32_t residx; 5568 5569 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 5570 if (lun->pr_keys[residx] == 0 5571 || (lun->pr_res_idx!=residx && lun->res_type < 4)) { 5572 5573 ctl_set_reservation_conflict(ctsio); 5574 ctl_done((union ctl_io *)ctsio); 5575 return (CTL_RETVAL_COMPLETE); 5576 } 5577 } 5578 5579 /* 5580 * If there is no backend on this device, we can't start or stop 5581 * it. In theory we shouldn't get any start/stop commands in the 5582 * first place at this level if the LUN doesn't have a backend. 5583 * That should get stopped by the command decode code. 5584 */ 5585 if (lun->backend == NULL) { 5586 ctl_set_invalid_opcode(ctsio); 5587 ctl_done((union ctl_io *)ctsio); 5588 return (CTL_RETVAL_COMPLETE); 5589 } 5590 5591 /* 5592 * XXX KDM Copan-specific offline behavior. 5593 * Figure out a reasonable way to port this? 5594 */ 5595#ifdef NEEDTOPORT 5596 mtx_lock(&lun->lun_lock); 5597 5598 if (((cdb->byte2 & SSS_ONOFFLINE) == 0) 5599 && (lun->flags & CTL_LUN_OFFLINE)) { 5600 /* 5601 * If the LUN is offline, and the on/offline bit isn't set, 5602 * reject the start or stop. Otherwise, let it through. 5603 */ 5604 mtx_unlock(&lun->lun_lock); 5605 ctl_set_lun_not_ready(ctsio); 5606 ctl_done((union ctl_io *)ctsio); 5607 } else { 5608 mtx_unlock(&lun->lun_lock); 5609#endif /* NEEDTOPORT */ 5610 /* 5611 * This could be a start or a stop when we're online, 5612 * or a stop/offline or start/online. A start or stop when 5613 * we're offline is covered in the case above. 5614 */ 5615 /* 5616 * In the non-immediate case, we send the request to 5617 * the backend and return status to the user when 5618 * it is done. 5619 * 5620 * In the immediate case, we allocate a new ctl_io 5621 * to hold a copy of the request, and send that to 5622 * the backend. We then set good status on the 5623 * user's request and return it immediately. 5624 */ 5625 if (cdb->byte2 & SSS_IMMED) { 5626 union ctl_io *new_io; 5627 5628 new_io = ctl_alloc_io(ctsio->io_hdr.pool); 5629 if (new_io == NULL) { 5630 ctl_set_busy(ctsio); 5631 ctl_done((union ctl_io *)ctsio); 5632 } else { 5633 ctl_copy_io((union ctl_io *)ctsio, 5634 new_io); 5635 retval = lun->backend->config_write(new_io); 5636 ctl_set_success(ctsio); 5637 ctl_done((union ctl_io *)ctsio); 5638 } 5639 } else { 5640 retval = lun->backend->config_write( 5641 (union ctl_io *)ctsio); 5642 } 5643#ifdef NEEDTOPORT 5644 } 5645#endif 5646 return (retval); 5647} 5648 5649/* 5650 * We support the SYNCHRONIZE CACHE command (10 and 16 byte versions), but 5651 * we don't really do anything with the LBA and length fields if the user 5652 * passes them in. Instead we'll just flush out the cache for the entire 5653 * LUN. 5654 */ 5655int 5656ctl_sync_cache(struct ctl_scsiio *ctsio) 5657{ 5658 struct ctl_lun *lun; 5659 struct ctl_softc *ctl_softc; 5660 uint64_t starting_lba; 5661 uint32_t block_count; 5662 int retval; 5663 5664 CTL_DEBUG_PRINT(("ctl_sync_cache\n")); 5665 5666 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5667 ctl_softc = control_softc; 5668 retval = 0; 5669 5670 switch (ctsio->cdb[0]) { 5671 case SYNCHRONIZE_CACHE: { 5672 struct scsi_sync_cache *cdb; 5673 cdb = (struct scsi_sync_cache *)ctsio->cdb; 5674 5675 starting_lba = scsi_4btoul(cdb->begin_lba); 5676 block_count = scsi_2btoul(cdb->lb_count); 5677 break; 5678 } 5679 case SYNCHRONIZE_CACHE_16: { 5680 struct scsi_sync_cache_16 *cdb; 5681 cdb = (struct scsi_sync_cache_16 *)ctsio->cdb; 5682 5683 starting_lba = scsi_8btou64(cdb->begin_lba); 5684 block_count = scsi_4btoul(cdb->lb_count); 5685 break; 5686 } 5687 default: 5688 ctl_set_invalid_opcode(ctsio); 5689 ctl_done((union ctl_io *)ctsio); 5690 goto bailout; 5691 break; /* NOTREACHED */ 5692 } 5693 5694 /* 5695 * We check the LBA and length, but don't do anything with them. 5696 * A SYNCHRONIZE CACHE will cause the entire cache for this lun to 5697 * get flushed. This check will just help satisfy anyone who wants 5698 * to see an error for an out of range LBA. 5699 */ 5700 if ((starting_lba + block_count) > (lun->be_lun->maxlba + 1)) { 5701 ctl_set_lba_out_of_range(ctsio); 5702 ctl_done((union ctl_io *)ctsio); 5703 goto bailout; 5704 } 5705 5706 /* 5707 * If this LUN has no backend, we can't flush the cache anyway. 5708 */ 5709 if (lun->backend == NULL) { 5710 ctl_set_invalid_opcode(ctsio); 5711 ctl_done((union ctl_io *)ctsio); 5712 goto bailout; 5713 } 5714 5715 /* 5716 * Check to see whether we're configured to send the SYNCHRONIZE 5717 * CACHE command directly to the back end. 5718 */ 5719 mtx_lock(&lun->lun_lock); 5720 if ((ctl_softc->flags & CTL_FLAG_REAL_SYNC) 5721 && (++(lun->sync_count) >= lun->sync_interval)) { 5722 lun->sync_count = 0; 5723 mtx_unlock(&lun->lun_lock); 5724 retval = lun->backend->config_write((union ctl_io *)ctsio); 5725 } else { 5726 mtx_unlock(&lun->lun_lock); 5727 ctl_set_success(ctsio); 5728 ctl_done((union ctl_io *)ctsio); 5729 } 5730 5731bailout: 5732 5733 return (retval); 5734} 5735 5736int 5737ctl_format(struct ctl_scsiio *ctsio) 5738{ 5739 struct scsi_format *cdb; 5740 struct ctl_lun *lun; 5741 struct ctl_softc *ctl_softc; 5742 int length, defect_list_len; 5743 5744 CTL_DEBUG_PRINT(("ctl_format\n")); 5745 5746 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5747 ctl_softc = control_softc; 5748 5749 cdb = (struct scsi_format *)ctsio->cdb; 5750 5751 length = 0; 5752 if (cdb->byte2 & SF_FMTDATA) { 5753 if (cdb->byte2 & SF_LONGLIST) 5754 length = sizeof(struct scsi_format_header_long); 5755 else 5756 length = sizeof(struct scsi_format_header_short); 5757 } 5758 5759 if (((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) 5760 && (length > 0)) { 5761 ctsio->kern_data_ptr = malloc(length, M_CTL, M_WAITOK); 5762 ctsio->kern_data_len = length; 5763 ctsio->kern_total_len = length; 5764 ctsio->kern_data_resid = 0; 5765 ctsio->kern_rel_offset = 0; 5766 ctsio->kern_sg_entries = 0; 5767 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5768 ctsio->be_move_done = ctl_config_move_done; 5769 ctl_datamove((union ctl_io *)ctsio); 5770 5771 return (CTL_RETVAL_COMPLETE); 5772 } 5773 5774 defect_list_len = 0; 5775 5776 if (cdb->byte2 & SF_FMTDATA) { 5777 if (cdb->byte2 & SF_LONGLIST) { 5778 struct scsi_format_header_long *header; 5779 5780 header = (struct scsi_format_header_long *) 5781 ctsio->kern_data_ptr; 5782 5783 defect_list_len = scsi_4btoul(header->defect_list_len); 5784 if (defect_list_len != 0) { 5785 ctl_set_invalid_field(ctsio, 5786 /*sks_valid*/ 1, 5787 /*command*/ 0, 5788 /*field*/ 2, 5789 /*bit_valid*/ 0, 5790 /*bit*/ 0); 5791 goto bailout; 5792 } 5793 } else { 5794 struct scsi_format_header_short *header; 5795 5796 header = (struct scsi_format_header_short *) 5797 ctsio->kern_data_ptr; 5798 5799 defect_list_len = scsi_2btoul(header->defect_list_len); 5800 if (defect_list_len != 0) { 5801 ctl_set_invalid_field(ctsio, 5802 /*sks_valid*/ 1, 5803 /*command*/ 0, 5804 /*field*/ 2, 5805 /*bit_valid*/ 0, 5806 /*bit*/ 0); 5807 goto bailout; 5808 } 5809 } 5810 } 5811 5812 /* 5813 * The format command will clear out the "Medium format corrupted" 5814 * status if set by the configuration code. That status is really 5815 * just a way to notify the host that we have lost the media, and 5816 * get them to issue a command that will basically make them think 5817 * they're blowing away the media. 5818 */ 5819 mtx_lock(&lun->lun_lock); 5820 lun->flags &= ~CTL_LUN_INOPERABLE; 5821 mtx_unlock(&lun->lun_lock); 5822 5823 ctsio->scsi_status = SCSI_STATUS_OK; 5824 ctsio->io_hdr.status = CTL_SUCCESS; 5825bailout: 5826 5827 if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) { 5828 free(ctsio->kern_data_ptr, M_CTL); 5829 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED; 5830 } 5831 5832 ctl_done((union ctl_io *)ctsio); 5833 return (CTL_RETVAL_COMPLETE); 5834} 5835 5836int 5837ctl_read_buffer(struct ctl_scsiio *ctsio) 5838{ 5839 struct scsi_read_buffer *cdb; 5840 struct ctl_lun *lun; 5841 int buffer_offset, len; 5842 static uint8_t descr[4]; 5843 static uint8_t echo_descr[4] = { 0 }; 5844 5845 CTL_DEBUG_PRINT(("ctl_read_buffer\n")); 5846 5847 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5848 cdb = (struct scsi_read_buffer *)ctsio->cdb; 5849 5850 if ((cdb->byte2 & RWB_MODE) != RWB_MODE_DATA && 5851 (cdb->byte2 & RWB_MODE) != RWB_MODE_ECHO_DESCR && 5852 (cdb->byte2 & RWB_MODE) != RWB_MODE_DESCR) { 5853 ctl_set_invalid_field(ctsio, 5854 /*sks_valid*/ 1, 5855 /*command*/ 1, 5856 /*field*/ 1, 5857 /*bit_valid*/ 1, 5858 /*bit*/ 4); 5859 ctl_done((union ctl_io *)ctsio); 5860 return (CTL_RETVAL_COMPLETE); 5861 } 5862 5863 len = scsi_3btoul(cdb->length); 5864 buffer_offset = scsi_3btoul(cdb->offset); 5865 5866 if (buffer_offset + len > CTL_WRITE_BUFFER_SIZE) { 5867 ctl_set_invalid_field(ctsio, 5868 /*sks_valid*/ 1, 5869 /*command*/ 1, 5870 /*field*/ 6, 5871 /*bit_valid*/ 0, 5872 /*bit*/ 0); 5873 ctl_done((union ctl_io *)ctsio); 5874 return (CTL_RETVAL_COMPLETE); 5875 } 5876 5877 if ((cdb->byte2 & RWB_MODE) == RWB_MODE_DESCR) { 5878 descr[0] = 0; 5879 scsi_ulto3b(CTL_WRITE_BUFFER_SIZE, &descr[1]); 5880 ctsio->kern_data_ptr = descr; 5881 len = min(len, sizeof(descr)); 5882 } else if ((cdb->byte2 & RWB_MODE) == RWB_MODE_ECHO_DESCR) { 5883 ctsio->kern_data_ptr = echo_descr; 5884 len = min(len, sizeof(echo_descr)); 5885 } else { 5886 if (lun->write_buffer == NULL) { 5887 lun->write_buffer = malloc(CTL_WRITE_BUFFER_SIZE, 5888 M_CTL, M_WAITOK); 5889 } 5890 ctsio->kern_data_ptr = lun->write_buffer + buffer_offset; 5891 } 5892 ctsio->kern_data_len = len; 5893 ctsio->kern_total_len = len; 5894 ctsio->kern_data_resid = 0; 5895 ctsio->kern_rel_offset = 0; 5896 ctsio->kern_sg_entries = 0; 5897 ctsio->be_move_done = ctl_config_move_done; 5898 ctl_datamove((union ctl_io *)ctsio); 5899 5900 return (CTL_RETVAL_COMPLETE); 5901} 5902 5903int 5904ctl_write_buffer(struct ctl_scsiio *ctsio) 5905{ 5906 struct scsi_write_buffer *cdb; 5907 struct ctl_lun *lun; 5908 int buffer_offset, len; 5909 5910 CTL_DEBUG_PRINT(("ctl_write_buffer\n")); 5911 5912 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5913 cdb = (struct scsi_write_buffer *)ctsio->cdb; 5914 5915 if ((cdb->byte2 & RWB_MODE) != RWB_MODE_DATA) { 5916 ctl_set_invalid_field(ctsio, 5917 /*sks_valid*/ 1, 5918 /*command*/ 1, 5919 /*field*/ 1, 5920 /*bit_valid*/ 1, 5921 /*bit*/ 4); 5922 ctl_done((union ctl_io *)ctsio); 5923 return (CTL_RETVAL_COMPLETE); 5924 } 5925 5926 len = scsi_3btoul(cdb->length); 5927 buffer_offset = scsi_3btoul(cdb->offset); 5928 5929 if (buffer_offset + len > CTL_WRITE_BUFFER_SIZE) { 5930 ctl_set_invalid_field(ctsio, 5931 /*sks_valid*/ 1, 5932 /*command*/ 1, 5933 /*field*/ 6, 5934 /*bit_valid*/ 0, 5935 /*bit*/ 0); 5936 ctl_done((union ctl_io *)ctsio); 5937 return (CTL_RETVAL_COMPLETE); 5938 } 5939 5940 /* 5941 * If we've got a kernel request that hasn't been malloced yet, 5942 * malloc it and tell the caller the data buffer is here. 5943 */ 5944 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 5945 if (lun->write_buffer == NULL) { 5946 lun->write_buffer = malloc(CTL_WRITE_BUFFER_SIZE, 5947 M_CTL, M_WAITOK); 5948 } 5949 ctsio->kern_data_ptr = lun->write_buffer + buffer_offset; 5950 ctsio->kern_data_len = len; 5951 ctsio->kern_total_len = len; 5952 ctsio->kern_data_resid = 0; 5953 ctsio->kern_rel_offset = 0; 5954 ctsio->kern_sg_entries = 0; 5955 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5956 ctsio->be_move_done = ctl_config_move_done; 5957 ctl_datamove((union ctl_io *)ctsio); 5958 5959 return (CTL_RETVAL_COMPLETE); 5960 } 5961 5962 ctl_done((union ctl_io *)ctsio); 5963 5964 return (CTL_RETVAL_COMPLETE); 5965} 5966 5967int 5968ctl_write_same(struct ctl_scsiio *ctsio) 5969{ 5970 struct ctl_lun *lun; 5971 struct ctl_lba_len_flags *lbalen; 5972 uint64_t lba; 5973 uint32_t num_blocks; 5974 int len, retval; 5975 uint8_t byte2; 5976 5977 retval = CTL_RETVAL_COMPLETE; 5978 5979 CTL_DEBUG_PRINT(("ctl_write_same\n")); 5980 5981 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5982 5983 switch (ctsio->cdb[0]) { 5984 case WRITE_SAME_10: { 5985 struct scsi_write_same_10 *cdb; 5986 5987 cdb = (struct scsi_write_same_10 *)ctsio->cdb; 5988 5989 lba = scsi_4btoul(cdb->addr); 5990 num_blocks = scsi_2btoul(cdb->length); 5991 byte2 = cdb->byte2; 5992 break; 5993 } 5994 case WRITE_SAME_16: { 5995 struct scsi_write_same_16 *cdb; 5996 5997 cdb = (struct scsi_write_same_16 *)ctsio->cdb; 5998 5999 lba = scsi_8btou64(cdb->addr); 6000 num_blocks = scsi_4btoul(cdb->length); 6001 byte2 = cdb->byte2; 6002 break; 6003 } 6004 default: 6005 /* 6006 * We got a command we don't support. This shouldn't 6007 * happen, commands should be filtered out above us. 6008 */ 6009 ctl_set_invalid_opcode(ctsio); 6010 ctl_done((union ctl_io *)ctsio); 6011 6012 return (CTL_RETVAL_COMPLETE); 6013 break; /* NOTREACHED */ 6014 } 6015 6016 /* NDOB and ANCHOR flags can be used only together with UNMAP */ 6017 if ((byte2 & SWS_UNMAP) == 0 && 6018 (byte2 & (SWS_NDOB | SWS_ANCHOR)) != 0) { 6019 ctl_set_invalid_field(ctsio, /*sks_valid*/ 1, 6020 /*command*/ 1, /*field*/ 1, /*bit_valid*/ 1, /*bit*/ 0); 6021 ctl_done((union ctl_io *)ctsio); 6022 return (CTL_RETVAL_COMPLETE); 6023 } 6024 6025 /* 6026 * The first check is to make sure we're in bounds, the second 6027 * check is to catch wrap-around problems. If the lba + num blocks 6028 * is less than the lba, then we've wrapped around and the block 6029 * range is invalid anyway. 6030 */ 6031 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 6032 || ((lba + num_blocks) < lba)) { 6033 ctl_set_lba_out_of_range(ctsio); 6034 ctl_done((union ctl_io *)ctsio); 6035 return (CTL_RETVAL_COMPLETE); 6036 } 6037 6038 /* Zero number of blocks means "to the last logical block" */ 6039 if (num_blocks == 0) { 6040 if ((lun->be_lun->maxlba + 1) - lba > UINT32_MAX) { 6041 ctl_set_invalid_field(ctsio, 6042 /*sks_valid*/ 0, 6043 /*command*/ 1, 6044 /*field*/ 0, 6045 /*bit_valid*/ 0, 6046 /*bit*/ 0); 6047 ctl_done((union ctl_io *)ctsio); 6048 return (CTL_RETVAL_COMPLETE); 6049 } 6050 num_blocks = (lun->be_lun->maxlba + 1) - lba; 6051 } 6052 6053 len = lun->be_lun->blocksize; 6054 6055 /* 6056 * If we've got a kernel request that hasn't been malloced yet, 6057 * malloc it and tell the caller the data buffer is here. 6058 */ 6059 if ((byte2 & SWS_NDOB) == 0 && 6060 (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 6061 ctsio->kern_data_ptr = malloc(len, M_CTL, M_WAITOK);; 6062 ctsio->kern_data_len = len; 6063 ctsio->kern_total_len = len; 6064 ctsio->kern_data_resid = 0; 6065 ctsio->kern_rel_offset = 0; 6066 ctsio->kern_sg_entries = 0; 6067 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6068 ctsio->be_move_done = ctl_config_move_done; 6069 ctl_datamove((union ctl_io *)ctsio); 6070 6071 return (CTL_RETVAL_COMPLETE); 6072 } 6073 6074 lbalen = (struct ctl_lba_len_flags *)&ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 6075 lbalen->lba = lba; 6076 lbalen->len = num_blocks; 6077 lbalen->flags = byte2; 6078 retval = lun->backend->config_write((union ctl_io *)ctsio); 6079 6080 return (retval); 6081} 6082 6083int 6084ctl_unmap(struct ctl_scsiio *ctsio) 6085{ 6086 struct ctl_lun *lun; 6087 struct scsi_unmap *cdb; 6088 struct ctl_ptr_len_flags *ptrlen; 6089 struct scsi_unmap_header *hdr; 6090 struct scsi_unmap_desc *buf, *end, *endnz, *range; 6091 uint64_t lba; 6092 uint32_t num_blocks; 6093 int len, retval; 6094 uint8_t byte2; 6095 6096 retval = CTL_RETVAL_COMPLETE; 6097 6098 CTL_DEBUG_PRINT(("ctl_unmap\n")); 6099 6100 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6101 cdb = (struct scsi_unmap *)ctsio->cdb; 6102 6103 len = scsi_2btoul(cdb->length); 6104 byte2 = cdb->byte2; 6105 6106 /* 6107 * If we've got a kernel request that hasn't been malloced yet, 6108 * malloc it and tell the caller the data buffer is here. 6109 */ 6110 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 6111 ctsio->kern_data_ptr = malloc(len, M_CTL, M_WAITOK);; 6112 ctsio->kern_data_len = len; 6113 ctsio->kern_total_len = len; 6114 ctsio->kern_data_resid = 0; 6115 ctsio->kern_rel_offset = 0; 6116 ctsio->kern_sg_entries = 0; 6117 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6118 ctsio->be_move_done = ctl_config_move_done; 6119 ctl_datamove((union ctl_io *)ctsio); 6120 6121 return (CTL_RETVAL_COMPLETE); 6122 } 6123 6124 len = ctsio->kern_total_len - ctsio->kern_data_resid; 6125 hdr = (struct scsi_unmap_header *)ctsio->kern_data_ptr; 6126 if (len < sizeof (*hdr) || 6127 len < (scsi_2btoul(hdr->length) + sizeof(hdr->length)) || 6128 len < (scsi_2btoul(hdr->desc_length) + sizeof (*hdr)) || 6129 scsi_2btoul(hdr->desc_length) % sizeof(*buf) != 0) { 6130 ctl_set_invalid_field(ctsio, 6131 /*sks_valid*/ 0, 6132 /*command*/ 0, 6133 /*field*/ 0, 6134 /*bit_valid*/ 0, 6135 /*bit*/ 0); 6136 ctl_done((union ctl_io *)ctsio); 6137 return (CTL_RETVAL_COMPLETE); 6138 } 6139 len = scsi_2btoul(hdr->desc_length); 6140 buf = (struct scsi_unmap_desc *)(hdr + 1); 6141 end = buf + len / sizeof(*buf); 6142 6143 endnz = buf; 6144 for (range = buf; range < end; range++) { 6145 lba = scsi_8btou64(range->lba); 6146 num_blocks = scsi_4btoul(range->length); 6147 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 6148 || ((lba + num_blocks) < lba)) { 6149 ctl_set_lba_out_of_range(ctsio); 6150 ctl_done((union ctl_io *)ctsio); 6151 return (CTL_RETVAL_COMPLETE); 6152 } 6153 if (num_blocks != 0) 6154 endnz = range + 1; 6155 } 6156 6157 /* 6158 * Block backend can not handle zero last range. 6159 * Filter it out and return if there is nothing left. 6160 */ 6161 len = (uint8_t *)endnz - (uint8_t *)buf; 6162 if (len == 0) { 6163 ctl_set_success(ctsio); 6164 ctl_done((union ctl_io *)ctsio); 6165 return (CTL_RETVAL_COMPLETE); 6166 } 6167 6168 mtx_lock(&lun->lun_lock); 6169 ptrlen = (struct ctl_ptr_len_flags *) 6170 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 6171 ptrlen->ptr = (void *)buf; 6172 ptrlen->len = len; 6173 ptrlen->flags = byte2; 6174 ctl_check_blocked(lun); 6175 mtx_unlock(&lun->lun_lock); 6176 6177 retval = lun->backend->config_write((union ctl_io *)ctsio); 6178 return (retval); 6179} 6180 6181/* 6182 * Note that this function currently doesn't actually do anything inside 6183 * CTL to enforce things if the DQue bit is turned on. 6184 * 6185 * Also note that this function can't be used in the default case, because 6186 * the DQue bit isn't set in the changeable mask for the control mode page 6187 * anyway. This is just here as an example for how to implement a page 6188 * handler, and a placeholder in case we want to allow the user to turn 6189 * tagged queueing on and off. 6190 * 6191 * The D_SENSE bit handling is functional, however, and will turn 6192 * descriptor sense on and off for a given LUN. 6193 */ 6194int 6195ctl_control_page_handler(struct ctl_scsiio *ctsio, 6196 struct ctl_page_index *page_index, uint8_t *page_ptr) 6197{ 6198 struct scsi_control_page *current_cp, *saved_cp, *user_cp; 6199 struct ctl_lun *lun; 6200 struct ctl_softc *softc; 6201 int set_ua; 6202 uint32_t initidx; 6203 6204 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6205 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 6206 set_ua = 0; 6207 6208 user_cp = (struct scsi_control_page *)page_ptr; 6209 current_cp = (struct scsi_control_page *) 6210 (page_index->page_data + (page_index->page_len * 6211 CTL_PAGE_CURRENT)); 6212 saved_cp = (struct scsi_control_page *) 6213 (page_index->page_data + (page_index->page_len * 6214 CTL_PAGE_SAVED)); 6215 6216 softc = control_softc; 6217 6218 mtx_lock(&lun->lun_lock); 6219 if (((current_cp->rlec & SCP_DSENSE) == 0) 6220 && ((user_cp->rlec & SCP_DSENSE) != 0)) { 6221 /* 6222 * Descriptor sense is currently turned off and the user 6223 * wants to turn it on. 6224 */ 6225 current_cp->rlec |= SCP_DSENSE; 6226 saved_cp->rlec |= SCP_DSENSE; 6227 lun->flags |= CTL_LUN_SENSE_DESC; 6228 set_ua = 1; 6229 } else if (((current_cp->rlec & SCP_DSENSE) != 0) 6230 && ((user_cp->rlec & SCP_DSENSE) == 0)) { 6231 /* 6232 * Descriptor sense is currently turned on, and the user 6233 * wants to turn it off. 6234 */ 6235 current_cp->rlec &= ~SCP_DSENSE; 6236 saved_cp->rlec &= ~SCP_DSENSE; 6237 lun->flags &= ~CTL_LUN_SENSE_DESC; 6238 set_ua = 1; 6239 } 6240 if ((current_cp->queue_flags & SCP_QUEUE_ALG_MASK) != 6241 (user_cp->queue_flags & SCP_QUEUE_ALG_MASK)) { 6242 current_cp->queue_flags &= ~SCP_QUEUE_ALG_MASK; 6243 current_cp->queue_flags |= user_cp->queue_flags & SCP_QUEUE_ALG_MASK; 6244 saved_cp->queue_flags &= ~SCP_QUEUE_ALG_MASK; 6245 saved_cp->queue_flags |= user_cp->queue_flags & SCP_QUEUE_ALG_MASK; 6246 set_ua = 1; 6247 } 6248 if ((current_cp->eca_and_aen & SCP_SWP) != 6249 (user_cp->eca_and_aen & SCP_SWP)) { 6250 current_cp->eca_and_aen &= ~SCP_SWP; 6251 current_cp->eca_and_aen |= user_cp->eca_and_aen & SCP_SWP; 6252 saved_cp->eca_and_aen &= ~SCP_SWP; 6253 saved_cp->eca_and_aen |= user_cp->eca_and_aen & SCP_SWP; 6254 set_ua = 1; 6255 } 6256 if (set_ua != 0) { 6257 int i; 6258 /* 6259 * Let other initiators know that the mode 6260 * parameters for this LUN have changed. 6261 */ 6262 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 6263 if (i == initidx) 6264 continue; 6265 6266 lun->pending_ua[i] |= CTL_UA_MODE_CHANGE; 6267 } 6268 } 6269 mtx_unlock(&lun->lun_lock); 6270 6271 return (0); 6272} 6273 6274int 6275ctl_caching_sp_handler(struct ctl_scsiio *ctsio, 6276 struct ctl_page_index *page_index, uint8_t *page_ptr) 6277{ 6278 struct scsi_caching_page *current_cp, *saved_cp, *user_cp; 6279 struct ctl_lun *lun; 6280 int set_ua; 6281 uint32_t initidx; 6282 6283 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6284 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 6285 set_ua = 0; 6286 6287 user_cp = (struct scsi_caching_page *)page_ptr; 6288 current_cp = (struct scsi_caching_page *) 6289 (page_index->page_data + (page_index->page_len * 6290 CTL_PAGE_CURRENT)); 6291 saved_cp = (struct scsi_caching_page *) 6292 (page_index->page_data + (page_index->page_len * 6293 CTL_PAGE_SAVED)); 6294 6295 mtx_lock(&lun->lun_lock); 6296 if ((current_cp->flags1 & (SCP_WCE | SCP_RCD)) != 6297 (user_cp->flags1 & (SCP_WCE | SCP_RCD))) { 6298 current_cp->flags1 &= ~(SCP_WCE | SCP_RCD); 6299 current_cp->flags1 |= user_cp->flags1 & (SCP_WCE | SCP_RCD); 6300 saved_cp->flags1 &= ~(SCP_WCE | SCP_RCD); 6301 saved_cp->flags1 |= user_cp->flags1 & (SCP_WCE | SCP_RCD); 6302 set_ua = 1; 6303 } 6304 if (set_ua != 0) { 6305 int i; 6306 /* 6307 * Let other initiators know that the mode 6308 * parameters for this LUN have changed. 6309 */ 6310 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 6311 if (i == initidx) 6312 continue; 6313 6314 lun->pending_ua[i] |= CTL_UA_MODE_CHANGE; 6315 } 6316 } 6317 mtx_unlock(&lun->lun_lock); 6318 6319 return (0); 6320} 6321 6322int 6323ctl_debugconf_sp_select_handler(struct ctl_scsiio *ctsio, 6324 struct ctl_page_index *page_index, 6325 uint8_t *page_ptr) 6326{ 6327 uint8_t *c; 6328 int i; 6329 6330 c = ((struct copan_debugconf_subpage *)page_ptr)->ctl_time_io_secs; 6331 ctl_time_io_secs = 6332 (c[0] << 8) | 6333 (c[1] << 0) | 6334 0; 6335 CTL_DEBUG_PRINT(("set ctl_time_io_secs to %d\n", ctl_time_io_secs)); 6336 printf("set ctl_time_io_secs to %d\n", ctl_time_io_secs); 6337 printf("page data:"); 6338 for (i=0; i<8; i++) 6339 printf(" %.2x",page_ptr[i]); 6340 printf("\n"); 6341 return (0); 6342} 6343 6344int 6345ctl_debugconf_sp_sense_handler(struct ctl_scsiio *ctsio, 6346 struct ctl_page_index *page_index, 6347 int pc) 6348{ 6349 struct copan_debugconf_subpage *page; 6350 6351 page = (struct copan_debugconf_subpage *)page_index->page_data + 6352 (page_index->page_len * pc); 6353 6354 switch (pc) { 6355 case SMS_PAGE_CTRL_CHANGEABLE >> 6: 6356 case SMS_PAGE_CTRL_DEFAULT >> 6: 6357 case SMS_PAGE_CTRL_SAVED >> 6: 6358 /* 6359 * We don't update the changable or default bits for this page. 6360 */ 6361 break; 6362 case SMS_PAGE_CTRL_CURRENT >> 6: 6363 page->ctl_time_io_secs[0] = ctl_time_io_secs >> 8; 6364 page->ctl_time_io_secs[1] = ctl_time_io_secs >> 0; 6365 break; 6366 default: 6367#ifdef NEEDTOPORT 6368 EPRINT(0, "Invalid PC %d!!", pc); 6369#endif /* NEEDTOPORT */ 6370 break; 6371 } 6372 return (0); 6373} 6374 6375 6376static int 6377ctl_do_mode_select(union ctl_io *io) 6378{ 6379 struct scsi_mode_page_header *page_header; 6380 struct ctl_page_index *page_index; 6381 struct ctl_scsiio *ctsio; 6382 int control_dev, page_len; 6383 int page_len_offset, page_len_size; 6384 union ctl_modepage_info *modepage_info; 6385 struct ctl_lun *lun; 6386 int *len_left, *len_used; 6387 int retval, i; 6388 6389 ctsio = &io->scsiio; 6390 page_index = NULL; 6391 page_len = 0; 6392 retval = CTL_RETVAL_COMPLETE; 6393 6394 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6395 6396 if (lun->be_lun->lun_type != T_DIRECT) 6397 control_dev = 1; 6398 else 6399 control_dev = 0; 6400 6401 modepage_info = (union ctl_modepage_info *) 6402 ctsio->io_hdr.ctl_private[CTL_PRIV_MODEPAGE].bytes; 6403 len_left = &modepage_info->header.len_left; 6404 len_used = &modepage_info->header.len_used; 6405 6406do_next_page: 6407 6408 page_header = (struct scsi_mode_page_header *) 6409 (ctsio->kern_data_ptr + *len_used); 6410 6411 if (*len_left == 0) { 6412 free(ctsio->kern_data_ptr, M_CTL); 6413 ctl_set_success(ctsio); 6414 ctl_done((union ctl_io *)ctsio); 6415 return (CTL_RETVAL_COMPLETE); 6416 } else if (*len_left < sizeof(struct scsi_mode_page_header)) { 6417 6418 free(ctsio->kern_data_ptr, M_CTL); 6419 ctl_set_param_len_error(ctsio); 6420 ctl_done((union ctl_io *)ctsio); 6421 return (CTL_RETVAL_COMPLETE); 6422 6423 } else if ((page_header->page_code & SMPH_SPF) 6424 && (*len_left < sizeof(struct scsi_mode_page_header_sp))) { 6425 6426 free(ctsio->kern_data_ptr, M_CTL); 6427 ctl_set_param_len_error(ctsio); 6428 ctl_done((union ctl_io *)ctsio); 6429 return (CTL_RETVAL_COMPLETE); 6430 } 6431 6432 6433 /* 6434 * XXX KDM should we do something with the block descriptor? 6435 */ 6436 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6437 6438 if ((control_dev != 0) 6439 && (lun->mode_pages.index[i].page_flags & 6440 CTL_PAGE_FLAG_DISK_ONLY)) 6441 continue; 6442 6443 if ((lun->mode_pages.index[i].page_code & SMPH_PC_MASK) != 6444 (page_header->page_code & SMPH_PC_MASK)) 6445 continue; 6446 6447 /* 6448 * If neither page has a subpage code, then we've got a 6449 * match. 6450 */ 6451 if (((lun->mode_pages.index[i].page_code & SMPH_SPF) == 0) 6452 && ((page_header->page_code & SMPH_SPF) == 0)) { 6453 page_index = &lun->mode_pages.index[i]; 6454 page_len = page_header->page_length; 6455 break; 6456 } 6457 6458 /* 6459 * If both pages have subpages, then the subpage numbers 6460 * have to match. 6461 */ 6462 if ((lun->mode_pages.index[i].page_code & SMPH_SPF) 6463 && (page_header->page_code & SMPH_SPF)) { 6464 struct scsi_mode_page_header_sp *sph; 6465 6466 sph = (struct scsi_mode_page_header_sp *)page_header; 6467 6468 if (lun->mode_pages.index[i].subpage == 6469 sph->subpage) { 6470 page_index = &lun->mode_pages.index[i]; 6471 page_len = scsi_2btoul(sph->page_length); 6472 break; 6473 } 6474 } 6475 } 6476 6477 /* 6478 * If we couldn't find the page, or if we don't have a mode select 6479 * handler for it, send back an error to the user. 6480 */ 6481 if ((page_index == NULL) 6482 || (page_index->select_handler == NULL)) { 6483 ctl_set_invalid_field(ctsio, 6484 /*sks_valid*/ 1, 6485 /*command*/ 0, 6486 /*field*/ *len_used, 6487 /*bit_valid*/ 0, 6488 /*bit*/ 0); 6489 free(ctsio->kern_data_ptr, M_CTL); 6490 ctl_done((union ctl_io *)ctsio); 6491 return (CTL_RETVAL_COMPLETE); 6492 } 6493 6494 if (page_index->page_code & SMPH_SPF) { 6495 page_len_offset = 2; 6496 page_len_size = 2; 6497 } else { 6498 page_len_size = 1; 6499 page_len_offset = 1; 6500 } 6501 6502 /* 6503 * If the length the initiator gives us isn't the one we specify in 6504 * the mode page header, or if they didn't specify enough data in 6505 * the CDB to avoid truncating this page, kick out the request. 6506 */ 6507 if ((page_len != (page_index->page_len - page_len_offset - 6508 page_len_size)) 6509 || (*len_left < page_index->page_len)) { 6510 6511 6512 ctl_set_invalid_field(ctsio, 6513 /*sks_valid*/ 1, 6514 /*command*/ 0, 6515 /*field*/ *len_used + page_len_offset, 6516 /*bit_valid*/ 0, 6517 /*bit*/ 0); 6518 free(ctsio->kern_data_ptr, M_CTL); 6519 ctl_done((union ctl_io *)ctsio); 6520 return (CTL_RETVAL_COMPLETE); 6521 } 6522 6523 /* 6524 * Run through the mode page, checking to make sure that the bits 6525 * the user changed are actually legal for him to change. 6526 */ 6527 for (i = 0; i < page_index->page_len; i++) { 6528 uint8_t *user_byte, *change_mask, *current_byte; 6529 int bad_bit; 6530 int j; 6531 6532 user_byte = (uint8_t *)page_header + i; 6533 change_mask = page_index->page_data + 6534 (page_index->page_len * CTL_PAGE_CHANGEABLE) + i; 6535 current_byte = page_index->page_data + 6536 (page_index->page_len * CTL_PAGE_CURRENT) + i; 6537 6538 /* 6539 * Check to see whether the user set any bits in this byte 6540 * that he is not allowed to set. 6541 */ 6542 if ((*user_byte & ~(*change_mask)) == 6543 (*current_byte & ~(*change_mask))) 6544 continue; 6545 6546 /* 6547 * Go through bit by bit to determine which one is illegal. 6548 */ 6549 bad_bit = 0; 6550 for (j = 7; j >= 0; j--) { 6551 if ((((1 << i) & ~(*change_mask)) & *user_byte) != 6552 (((1 << i) & ~(*change_mask)) & *current_byte)) { 6553 bad_bit = i; 6554 break; 6555 } 6556 } 6557 ctl_set_invalid_field(ctsio, 6558 /*sks_valid*/ 1, 6559 /*command*/ 0, 6560 /*field*/ *len_used + i, 6561 /*bit_valid*/ 1, 6562 /*bit*/ bad_bit); 6563 free(ctsio->kern_data_ptr, M_CTL); 6564 ctl_done((union ctl_io *)ctsio); 6565 return (CTL_RETVAL_COMPLETE); 6566 } 6567 6568 /* 6569 * Decrement these before we call the page handler, since we may 6570 * end up getting called back one way or another before the handler 6571 * returns to this context. 6572 */ 6573 *len_left -= page_index->page_len; 6574 *len_used += page_index->page_len; 6575 6576 retval = page_index->select_handler(ctsio, page_index, 6577 (uint8_t *)page_header); 6578 6579 /* 6580 * If the page handler returns CTL_RETVAL_QUEUED, then we need to 6581 * wait until this queued command completes to finish processing 6582 * the mode page. If it returns anything other than 6583 * CTL_RETVAL_COMPLETE (e.g. CTL_RETVAL_ERROR), then it should have 6584 * already set the sense information, freed the data pointer, and 6585 * completed the io for us. 6586 */ 6587 if (retval != CTL_RETVAL_COMPLETE) 6588 goto bailout_no_done; 6589 6590 /* 6591 * If the initiator sent us more than one page, parse the next one. 6592 */ 6593 if (*len_left > 0) 6594 goto do_next_page; 6595 6596 ctl_set_success(ctsio); 6597 free(ctsio->kern_data_ptr, M_CTL); 6598 ctl_done((union ctl_io *)ctsio); 6599 6600bailout_no_done: 6601 6602 return (CTL_RETVAL_COMPLETE); 6603 6604} 6605 6606int 6607ctl_mode_select(struct ctl_scsiio *ctsio) 6608{ 6609 int param_len, pf, sp; 6610 int header_size, bd_len; 6611 int len_left, len_used; 6612 struct ctl_page_index *page_index; 6613 struct ctl_lun *lun; 6614 int control_dev, page_len; 6615 union ctl_modepage_info *modepage_info; 6616 int retval; 6617 6618 pf = 0; 6619 sp = 0; 6620 page_len = 0; 6621 len_used = 0; 6622 len_left = 0; 6623 retval = 0; 6624 bd_len = 0; 6625 page_index = NULL; 6626 6627 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6628 6629 if (lun->be_lun->lun_type != T_DIRECT) 6630 control_dev = 1; 6631 else 6632 control_dev = 0; 6633 6634 switch (ctsio->cdb[0]) { 6635 case MODE_SELECT_6: { 6636 struct scsi_mode_select_6 *cdb; 6637 6638 cdb = (struct scsi_mode_select_6 *)ctsio->cdb; 6639 6640 pf = (cdb->byte2 & SMS_PF) ? 1 : 0; 6641 sp = (cdb->byte2 & SMS_SP) ? 1 : 0; 6642 6643 param_len = cdb->length; 6644 header_size = sizeof(struct scsi_mode_header_6); 6645 break; 6646 } 6647 case MODE_SELECT_10: { 6648 struct scsi_mode_select_10 *cdb; 6649 6650 cdb = (struct scsi_mode_select_10 *)ctsio->cdb; 6651 6652 pf = (cdb->byte2 & SMS_PF) ? 1 : 0; 6653 sp = (cdb->byte2 & SMS_SP) ? 1 : 0; 6654 6655 param_len = scsi_2btoul(cdb->length); 6656 header_size = sizeof(struct scsi_mode_header_10); 6657 break; 6658 } 6659 default: 6660 ctl_set_invalid_opcode(ctsio); 6661 ctl_done((union ctl_io *)ctsio); 6662 return (CTL_RETVAL_COMPLETE); 6663 break; /* NOTREACHED */ 6664 } 6665 6666 /* 6667 * From SPC-3: 6668 * "A parameter list length of zero indicates that the Data-Out Buffer 6669 * shall be empty. This condition shall not be considered as an error." 6670 */ 6671 if (param_len == 0) { 6672 ctl_set_success(ctsio); 6673 ctl_done((union ctl_io *)ctsio); 6674 return (CTL_RETVAL_COMPLETE); 6675 } 6676 6677 /* 6678 * Since we'll hit this the first time through, prior to 6679 * allocation, we don't need to free a data buffer here. 6680 */ 6681 if (param_len < header_size) { 6682 ctl_set_param_len_error(ctsio); 6683 ctl_done((union ctl_io *)ctsio); 6684 return (CTL_RETVAL_COMPLETE); 6685 } 6686 6687 /* 6688 * Allocate the data buffer and grab the user's data. In theory, 6689 * we shouldn't have to sanity check the parameter list length here 6690 * because the maximum size is 64K. We should be able to malloc 6691 * that much without too many problems. 6692 */ 6693 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 6694 ctsio->kern_data_ptr = malloc(param_len, M_CTL, M_WAITOK); 6695 ctsio->kern_data_len = param_len; 6696 ctsio->kern_total_len = param_len; 6697 ctsio->kern_data_resid = 0; 6698 ctsio->kern_rel_offset = 0; 6699 ctsio->kern_sg_entries = 0; 6700 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6701 ctsio->be_move_done = ctl_config_move_done; 6702 ctl_datamove((union ctl_io *)ctsio); 6703 6704 return (CTL_RETVAL_COMPLETE); 6705 } 6706 6707 switch (ctsio->cdb[0]) { 6708 case MODE_SELECT_6: { 6709 struct scsi_mode_header_6 *mh6; 6710 6711 mh6 = (struct scsi_mode_header_6 *)ctsio->kern_data_ptr; 6712 bd_len = mh6->blk_desc_len; 6713 break; 6714 } 6715 case MODE_SELECT_10: { 6716 struct scsi_mode_header_10 *mh10; 6717 6718 mh10 = (struct scsi_mode_header_10 *)ctsio->kern_data_ptr; 6719 bd_len = scsi_2btoul(mh10->blk_desc_len); 6720 break; 6721 } 6722 default: 6723 panic("Invalid CDB type %#x", ctsio->cdb[0]); 6724 break; 6725 } 6726 6727 if (param_len < (header_size + bd_len)) { 6728 free(ctsio->kern_data_ptr, M_CTL); 6729 ctl_set_param_len_error(ctsio); 6730 ctl_done((union ctl_io *)ctsio); 6731 return (CTL_RETVAL_COMPLETE); 6732 } 6733 6734 /* 6735 * Set the IO_CONT flag, so that if this I/O gets passed to 6736 * ctl_config_write_done(), it'll get passed back to 6737 * ctl_do_mode_select() for further processing, or completion if 6738 * we're all done. 6739 */ 6740 ctsio->io_hdr.flags |= CTL_FLAG_IO_CONT; 6741 ctsio->io_cont = ctl_do_mode_select; 6742 6743 modepage_info = (union ctl_modepage_info *) 6744 ctsio->io_hdr.ctl_private[CTL_PRIV_MODEPAGE].bytes; 6745 6746 memset(modepage_info, 0, sizeof(*modepage_info)); 6747 6748 len_left = param_len - header_size - bd_len; 6749 len_used = header_size + bd_len; 6750 6751 modepage_info->header.len_left = len_left; 6752 modepage_info->header.len_used = len_used; 6753 6754 return (ctl_do_mode_select((union ctl_io *)ctsio)); 6755} 6756 6757int 6758ctl_mode_sense(struct ctl_scsiio *ctsio) 6759{ 6760 struct ctl_lun *lun; 6761 int pc, page_code, dbd, llba, subpage; 6762 int alloc_len, page_len, header_len, total_len; 6763 struct scsi_mode_block_descr *block_desc; 6764 struct ctl_page_index *page_index; 6765 int control_dev; 6766 6767 dbd = 0; 6768 llba = 0; 6769 block_desc = NULL; 6770 page_index = NULL; 6771 6772 CTL_DEBUG_PRINT(("ctl_mode_sense\n")); 6773 6774 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6775 6776 if (lun->be_lun->lun_type != T_DIRECT) 6777 control_dev = 1; 6778 else 6779 control_dev = 0; 6780 6781 switch (ctsio->cdb[0]) { 6782 case MODE_SENSE_6: { 6783 struct scsi_mode_sense_6 *cdb; 6784 6785 cdb = (struct scsi_mode_sense_6 *)ctsio->cdb; 6786 6787 header_len = sizeof(struct scsi_mode_hdr_6); 6788 if (cdb->byte2 & SMS_DBD) 6789 dbd = 1; 6790 else 6791 header_len += sizeof(struct scsi_mode_block_descr); 6792 6793 pc = (cdb->page & SMS_PAGE_CTRL_MASK) >> 6; 6794 page_code = cdb->page & SMS_PAGE_CODE; 6795 subpage = cdb->subpage; 6796 alloc_len = cdb->length; 6797 break; 6798 } 6799 case MODE_SENSE_10: { 6800 struct scsi_mode_sense_10 *cdb; 6801 6802 cdb = (struct scsi_mode_sense_10 *)ctsio->cdb; 6803 6804 header_len = sizeof(struct scsi_mode_hdr_10); 6805 6806 if (cdb->byte2 & SMS_DBD) 6807 dbd = 1; 6808 else 6809 header_len += sizeof(struct scsi_mode_block_descr); 6810 if (cdb->byte2 & SMS10_LLBAA) 6811 llba = 1; 6812 pc = (cdb->page & SMS_PAGE_CTRL_MASK) >> 6; 6813 page_code = cdb->page & SMS_PAGE_CODE; 6814 subpage = cdb->subpage; 6815 alloc_len = scsi_2btoul(cdb->length); 6816 break; 6817 } 6818 default: 6819 ctl_set_invalid_opcode(ctsio); 6820 ctl_done((union ctl_io *)ctsio); 6821 return (CTL_RETVAL_COMPLETE); 6822 break; /* NOTREACHED */ 6823 } 6824 6825 /* 6826 * We have to make a first pass through to calculate the size of 6827 * the pages that match the user's query. Then we allocate enough 6828 * memory to hold it, and actually copy the data into the buffer. 6829 */ 6830 switch (page_code) { 6831 case SMS_ALL_PAGES_PAGE: { 6832 int i; 6833 6834 page_len = 0; 6835 6836 /* 6837 * At the moment, values other than 0 and 0xff here are 6838 * reserved according to SPC-3. 6839 */ 6840 if ((subpage != SMS_SUBPAGE_PAGE_0) 6841 && (subpage != SMS_SUBPAGE_ALL)) { 6842 ctl_set_invalid_field(ctsio, 6843 /*sks_valid*/ 1, 6844 /*command*/ 1, 6845 /*field*/ 3, 6846 /*bit_valid*/ 0, 6847 /*bit*/ 0); 6848 ctl_done((union ctl_io *)ctsio); 6849 return (CTL_RETVAL_COMPLETE); 6850 } 6851 6852 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6853 if ((control_dev != 0) 6854 && (lun->mode_pages.index[i].page_flags & 6855 CTL_PAGE_FLAG_DISK_ONLY)) 6856 continue; 6857 6858 /* 6859 * We don't use this subpage if the user didn't 6860 * request all subpages. 6861 */ 6862 if ((lun->mode_pages.index[i].subpage != 0) 6863 && (subpage == SMS_SUBPAGE_PAGE_0)) 6864 continue; 6865 6866#if 0 6867 printf("found page %#x len %d\n", 6868 lun->mode_pages.index[i].page_code & 6869 SMPH_PC_MASK, 6870 lun->mode_pages.index[i].page_len); 6871#endif 6872 page_len += lun->mode_pages.index[i].page_len; 6873 } 6874 break; 6875 } 6876 default: { 6877 int i; 6878 6879 page_len = 0; 6880 6881 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6882 /* Look for the right page code */ 6883 if ((lun->mode_pages.index[i].page_code & 6884 SMPH_PC_MASK) != page_code) 6885 continue; 6886 6887 /* Look for the right subpage or the subpage wildcard*/ 6888 if ((lun->mode_pages.index[i].subpage != subpage) 6889 && (subpage != SMS_SUBPAGE_ALL)) 6890 continue; 6891 6892 /* Make sure the page is supported for this dev type */ 6893 if ((control_dev != 0) 6894 && (lun->mode_pages.index[i].page_flags & 6895 CTL_PAGE_FLAG_DISK_ONLY)) 6896 continue; 6897 6898#if 0 6899 printf("found page %#x len %d\n", 6900 lun->mode_pages.index[i].page_code & 6901 SMPH_PC_MASK, 6902 lun->mode_pages.index[i].page_len); 6903#endif 6904 6905 page_len += lun->mode_pages.index[i].page_len; 6906 } 6907 6908 if (page_len == 0) { 6909 ctl_set_invalid_field(ctsio, 6910 /*sks_valid*/ 1, 6911 /*command*/ 1, 6912 /*field*/ 2, 6913 /*bit_valid*/ 1, 6914 /*bit*/ 5); 6915 ctl_done((union ctl_io *)ctsio); 6916 return (CTL_RETVAL_COMPLETE); 6917 } 6918 break; 6919 } 6920 } 6921 6922 total_len = header_len + page_len; 6923#if 0 6924 printf("header_len = %d, page_len = %d, total_len = %d\n", 6925 header_len, page_len, total_len); 6926#endif 6927 6928 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 6929 ctsio->kern_sg_entries = 0; 6930 ctsio->kern_data_resid = 0; 6931 ctsio->kern_rel_offset = 0; 6932 if (total_len < alloc_len) { 6933 ctsio->residual = alloc_len - total_len; 6934 ctsio->kern_data_len = total_len; 6935 ctsio->kern_total_len = total_len; 6936 } else { 6937 ctsio->residual = 0; 6938 ctsio->kern_data_len = alloc_len; 6939 ctsio->kern_total_len = alloc_len; 6940 } 6941 6942 switch (ctsio->cdb[0]) { 6943 case MODE_SENSE_6: { 6944 struct scsi_mode_hdr_6 *header; 6945 6946 header = (struct scsi_mode_hdr_6 *)ctsio->kern_data_ptr; 6947 6948 header->datalen = ctl_min(total_len - 1, 254); 6949 if (control_dev == 0) { 6950 header->dev_specific = 0x10; /* DPOFUA */ 6951 if ((lun->flags & CTL_LUN_READONLY) || 6952 (lun->mode_pages.control_page[CTL_PAGE_CURRENT] 6953 .eca_and_aen & SCP_SWP) != 0) 6954 header->dev_specific |= 0x80; /* WP */ 6955 } 6956 if (dbd) 6957 header->block_descr_len = 0; 6958 else 6959 header->block_descr_len = 6960 sizeof(struct scsi_mode_block_descr); 6961 block_desc = (struct scsi_mode_block_descr *)&header[1]; 6962 break; 6963 } 6964 case MODE_SENSE_10: { 6965 struct scsi_mode_hdr_10 *header; 6966 int datalen; 6967 6968 header = (struct scsi_mode_hdr_10 *)ctsio->kern_data_ptr; 6969 6970 datalen = ctl_min(total_len - 2, 65533); 6971 scsi_ulto2b(datalen, header->datalen); 6972 if (control_dev == 0) { 6973 header->dev_specific = 0x10; /* DPOFUA */ 6974 if ((lun->flags & CTL_LUN_READONLY) || 6975 (lun->mode_pages.control_page[CTL_PAGE_CURRENT] 6976 .eca_and_aen & SCP_SWP) != 0) 6977 header->dev_specific |= 0x80; /* WP */ 6978 } 6979 if (dbd) 6980 scsi_ulto2b(0, header->block_descr_len); 6981 else 6982 scsi_ulto2b(sizeof(struct scsi_mode_block_descr), 6983 header->block_descr_len); 6984 block_desc = (struct scsi_mode_block_descr *)&header[1]; 6985 break; 6986 } 6987 default: 6988 panic("invalid CDB type %#x", ctsio->cdb[0]); 6989 break; /* NOTREACHED */ 6990 } 6991 6992 /* 6993 * If we've got a disk, use its blocksize in the block 6994 * descriptor. Otherwise, just set it to 0. 6995 */ 6996 if (dbd == 0) { 6997 if (control_dev == 0) 6998 scsi_ulto3b(lun->be_lun->blocksize, 6999 block_desc->block_len); 7000 else 7001 scsi_ulto3b(0, block_desc->block_len); 7002 } 7003 7004 switch (page_code) { 7005 case SMS_ALL_PAGES_PAGE: { 7006 int i, data_used; 7007 7008 data_used = header_len; 7009 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 7010 struct ctl_page_index *page_index; 7011 7012 page_index = &lun->mode_pages.index[i]; 7013 7014 if ((control_dev != 0) 7015 && (page_index->page_flags & 7016 CTL_PAGE_FLAG_DISK_ONLY)) 7017 continue; 7018 7019 /* 7020 * We don't use this subpage if the user didn't 7021 * request all subpages. We already checked (above) 7022 * to make sure the user only specified a subpage 7023 * of 0 or 0xff in the SMS_ALL_PAGES_PAGE case. 7024 */ 7025 if ((page_index->subpage != 0) 7026 && (subpage == SMS_SUBPAGE_PAGE_0)) 7027 continue; 7028 7029 /* 7030 * Call the handler, if it exists, to update the 7031 * page to the latest values. 7032 */ 7033 if (page_index->sense_handler != NULL) 7034 page_index->sense_handler(ctsio, page_index,pc); 7035 7036 memcpy(ctsio->kern_data_ptr + data_used, 7037 page_index->page_data + 7038 (page_index->page_len * pc), 7039 page_index->page_len); 7040 data_used += page_index->page_len; 7041 } 7042 break; 7043 } 7044 default: { 7045 int i, data_used; 7046 7047 data_used = header_len; 7048 7049 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 7050 struct ctl_page_index *page_index; 7051 7052 page_index = &lun->mode_pages.index[i]; 7053 7054 /* Look for the right page code */ 7055 if ((page_index->page_code & SMPH_PC_MASK) != page_code) 7056 continue; 7057 7058 /* Look for the right subpage or the subpage wildcard*/ 7059 if ((page_index->subpage != subpage) 7060 && (subpage != SMS_SUBPAGE_ALL)) 7061 continue; 7062 7063 /* Make sure the page is supported for this dev type */ 7064 if ((control_dev != 0) 7065 && (page_index->page_flags & 7066 CTL_PAGE_FLAG_DISK_ONLY)) 7067 continue; 7068 7069 /* 7070 * Call the handler, if it exists, to update the 7071 * page to the latest values. 7072 */ 7073 if (page_index->sense_handler != NULL) 7074 page_index->sense_handler(ctsio, page_index,pc); 7075 7076 memcpy(ctsio->kern_data_ptr + data_used, 7077 page_index->page_data + 7078 (page_index->page_len * pc), 7079 page_index->page_len); 7080 data_used += page_index->page_len; 7081 } 7082 break; 7083 } 7084 } 7085 7086 ctsio->scsi_status = SCSI_STATUS_OK; 7087 7088 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7089 ctsio->be_move_done = ctl_config_move_done; 7090 ctl_datamove((union ctl_io *)ctsio); 7091 7092 return (CTL_RETVAL_COMPLETE); 7093} 7094 7095int 7096ctl_lbp_log_sense_handler(struct ctl_scsiio *ctsio, 7097 struct ctl_page_index *page_index, 7098 int pc) 7099{ 7100 struct ctl_lun *lun; 7101 struct scsi_log_param_header *phdr; 7102 uint8_t *data; 7103 uint64_t val; 7104 7105 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7106 data = page_index->page_data; 7107 7108 if (lun->backend->lun_attr != NULL && 7109 (val = lun->backend->lun_attr(lun->be_lun->be_lun, "blocksavail")) 7110 != UINT64_MAX) { 7111 phdr = (struct scsi_log_param_header *)data; 7112 scsi_ulto2b(0x0001, phdr->param_code); 7113 phdr->param_control = SLP_LBIN | SLP_LP; 7114 phdr->param_len = 8; 7115 data = (uint8_t *)(phdr + 1); 7116 scsi_ulto4b(val >> CTL_LBP_EXPONENT, data); 7117 data[4] = 0x01; /* per-LUN */ 7118 data += phdr->param_len; 7119 } 7120 7121 if (lun->backend->lun_attr != NULL && 7122 (val = lun->backend->lun_attr(lun->be_lun->be_lun, "blocksused")) 7123 != UINT64_MAX) { 7124 phdr = (struct scsi_log_param_header *)data; 7125 scsi_ulto2b(0x0002, phdr->param_code); 7126 phdr->param_control = SLP_LBIN | SLP_LP; 7127 phdr->param_len = 8; 7128 data = (uint8_t *)(phdr + 1); 7129 scsi_ulto4b(val >> CTL_LBP_EXPONENT, data); 7130 data[4] = 0x02; /* per-pool */ 7131 data += phdr->param_len; 7132 } 7133 7134 if (lun->backend->lun_attr != NULL && 7135 (val = lun->backend->lun_attr(lun->be_lun->be_lun, "poolblocksavail")) 7136 != UINT64_MAX) { 7137 phdr = (struct scsi_log_param_header *)data; 7138 scsi_ulto2b(0x00f1, phdr->param_code); 7139 phdr->param_control = SLP_LBIN | SLP_LP; 7140 phdr->param_len = 8; 7141 data = (uint8_t *)(phdr + 1); 7142 scsi_ulto4b(val >> CTL_LBP_EXPONENT, data); 7143 data[4] = 0x02; /* per-pool */ 7144 data += phdr->param_len; 7145 } 7146 7147 if (lun->backend->lun_attr != NULL && 7148 (val = lun->backend->lun_attr(lun->be_lun->be_lun, "poolblocksused")) 7149 != UINT64_MAX) { 7150 phdr = (struct scsi_log_param_header *)data; 7151 scsi_ulto2b(0x00f2, phdr->param_code); 7152 phdr->param_control = SLP_LBIN | SLP_LP; 7153 phdr->param_len = 8; 7154 data = (uint8_t *)(phdr + 1); 7155 scsi_ulto4b(val >> CTL_LBP_EXPONENT, data); 7156 data[4] = 0x02; /* per-pool */ 7157 data += phdr->param_len; 7158 } 7159 7160 page_index->page_len = data - page_index->page_data; 7161 return (0); 7162} 7163 7164int 7165ctl_log_sense(struct ctl_scsiio *ctsio) 7166{ 7167 struct ctl_lun *lun; 7168 int i, pc, page_code, subpage; 7169 int alloc_len, total_len; 7170 struct ctl_page_index *page_index; 7171 struct scsi_log_sense *cdb; 7172 struct scsi_log_header *header; 7173 7174 CTL_DEBUG_PRINT(("ctl_log_sense\n")); 7175 7176 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7177 cdb = (struct scsi_log_sense *)ctsio->cdb; 7178 pc = (cdb->page & SLS_PAGE_CTRL_MASK) >> 6; 7179 page_code = cdb->page & SLS_PAGE_CODE; 7180 subpage = cdb->subpage; 7181 alloc_len = scsi_2btoul(cdb->length); 7182 7183 page_index = NULL; 7184 for (i = 0; i < CTL_NUM_LOG_PAGES; i++) { 7185 page_index = &lun->log_pages.index[i]; 7186 7187 /* Look for the right page code */ 7188 if ((page_index->page_code & SL_PAGE_CODE) != page_code) 7189 continue; 7190 7191 /* Look for the right subpage or the subpage wildcard*/ 7192 if (page_index->subpage != subpage) 7193 continue; 7194 7195 break; 7196 } 7197 if (i >= CTL_NUM_LOG_PAGES) { 7198 ctl_set_invalid_field(ctsio, 7199 /*sks_valid*/ 1, 7200 /*command*/ 1, 7201 /*field*/ 2, 7202 /*bit_valid*/ 0, 7203 /*bit*/ 0); 7204 ctl_done((union ctl_io *)ctsio); 7205 return (CTL_RETVAL_COMPLETE); 7206 } 7207 7208 total_len = sizeof(struct scsi_log_header) + page_index->page_len; 7209 7210 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7211 ctsio->kern_sg_entries = 0; 7212 ctsio->kern_data_resid = 0; 7213 ctsio->kern_rel_offset = 0; 7214 if (total_len < alloc_len) { 7215 ctsio->residual = alloc_len - total_len; 7216 ctsio->kern_data_len = total_len; 7217 ctsio->kern_total_len = total_len; 7218 } else { 7219 ctsio->residual = 0; 7220 ctsio->kern_data_len = alloc_len; 7221 ctsio->kern_total_len = alloc_len; 7222 } 7223 7224 header = (struct scsi_log_header *)ctsio->kern_data_ptr; 7225 header->page = page_index->page_code; 7226 if (page_index->subpage) { 7227 header->page |= SL_SPF; 7228 header->subpage = page_index->subpage; 7229 } 7230 scsi_ulto2b(page_index->page_len, header->datalen); 7231 7232 /* 7233 * Call the handler, if it exists, to update the 7234 * page to the latest values. 7235 */ 7236 if (page_index->sense_handler != NULL) 7237 page_index->sense_handler(ctsio, page_index, pc); 7238 7239 memcpy(header + 1, page_index->page_data, page_index->page_len); 7240 7241 ctsio->scsi_status = SCSI_STATUS_OK; 7242 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7243 ctsio->be_move_done = ctl_config_move_done; 7244 ctl_datamove((union ctl_io *)ctsio); 7245 7246 return (CTL_RETVAL_COMPLETE); 7247} 7248 7249int 7250ctl_read_capacity(struct ctl_scsiio *ctsio) 7251{ 7252 struct scsi_read_capacity *cdb; 7253 struct scsi_read_capacity_data *data; 7254 struct ctl_lun *lun; 7255 uint32_t lba; 7256 7257 CTL_DEBUG_PRINT(("ctl_read_capacity\n")); 7258 7259 cdb = (struct scsi_read_capacity *)ctsio->cdb; 7260 7261 lba = scsi_4btoul(cdb->addr); 7262 if (((cdb->pmi & SRC_PMI) == 0) 7263 && (lba != 0)) { 7264 ctl_set_invalid_field(/*ctsio*/ ctsio, 7265 /*sks_valid*/ 1, 7266 /*command*/ 1, 7267 /*field*/ 2, 7268 /*bit_valid*/ 0, 7269 /*bit*/ 0); 7270 ctl_done((union ctl_io *)ctsio); 7271 return (CTL_RETVAL_COMPLETE); 7272 } 7273 7274 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7275 7276 ctsio->kern_data_ptr = malloc(sizeof(*data), M_CTL, M_WAITOK | M_ZERO); 7277 data = (struct scsi_read_capacity_data *)ctsio->kern_data_ptr; 7278 ctsio->residual = 0; 7279 ctsio->kern_data_len = sizeof(*data); 7280 ctsio->kern_total_len = sizeof(*data); 7281 ctsio->kern_data_resid = 0; 7282 ctsio->kern_rel_offset = 0; 7283 ctsio->kern_sg_entries = 0; 7284 7285 /* 7286 * If the maximum LBA is greater than 0xfffffffe, the user must 7287 * issue a SERVICE ACTION IN (16) command, with the read capacity 7288 * serivce action set. 7289 */ 7290 if (lun->be_lun->maxlba > 0xfffffffe) 7291 scsi_ulto4b(0xffffffff, data->addr); 7292 else 7293 scsi_ulto4b(lun->be_lun->maxlba, data->addr); 7294 7295 /* 7296 * XXX KDM this may not be 512 bytes... 7297 */ 7298 scsi_ulto4b(lun->be_lun->blocksize, data->length); 7299 7300 ctsio->scsi_status = SCSI_STATUS_OK; 7301 7302 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7303 ctsio->be_move_done = ctl_config_move_done; 7304 ctl_datamove((union ctl_io *)ctsio); 7305 7306 return (CTL_RETVAL_COMPLETE); 7307} 7308 7309int 7310ctl_read_capacity_16(struct ctl_scsiio *ctsio) 7311{ 7312 struct scsi_read_capacity_16 *cdb; 7313 struct scsi_read_capacity_data_long *data; 7314 struct ctl_lun *lun; 7315 uint64_t lba; 7316 uint32_t alloc_len; 7317 7318 CTL_DEBUG_PRINT(("ctl_read_capacity_16\n")); 7319 7320 cdb = (struct scsi_read_capacity_16 *)ctsio->cdb; 7321 7322 alloc_len = scsi_4btoul(cdb->alloc_len); 7323 lba = scsi_8btou64(cdb->addr); 7324 7325 if ((cdb->reladr & SRC16_PMI) 7326 && (lba != 0)) { 7327 ctl_set_invalid_field(/*ctsio*/ ctsio, 7328 /*sks_valid*/ 1, 7329 /*command*/ 1, 7330 /*field*/ 2, 7331 /*bit_valid*/ 0, 7332 /*bit*/ 0); 7333 ctl_done((union ctl_io *)ctsio); 7334 return (CTL_RETVAL_COMPLETE); 7335 } 7336 7337 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7338 7339 ctsio->kern_data_ptr = malloc(sizeof(*data), M_CTL, M_WAITOK | M_ZERO); 7340 data = (struct scsi_read_capacity_data_long *)ctsio->kern_data_ptr; 7341 7342 if (sizeof(*data) < alloc_len) { 7343 ctsio->residual = alloc_len - sizeof(*data); 7344 ctsio->kern_data_len = sizeof(*data); 7345 ctsio->kern_total_len = sizeof(*data); 7346 } else { 7347 ctsio->residual = 0; 7348 ctsio->kern_data_len = alloc_len; 7349 ctsio->kern_total_len = alloc_len; 7350 } 7351 ctsio->kern_data_resid = 0; 7352 ctsio->kern_rel_offset = 0; 7353 ctsio->kern_sg_entries = 0; 7354 7355 scsi_u64to8b(lun->be_lun->maxlba, data->addr); 7356 /* XXX KDM this may not be 512 bytes... */ 7357 scsi_ulto4b(lun->be_lun->blocksize, data->length); 7358 data->prot_lbppbe = lun->be_lun->pblockexp & SRC16_LBPPBE; 7359 scsi_ulto2b(lun->be_lun->pblockoff & SRC16_LALBA_A, data->lalba_lbp); 7360 if (lun->be_lun->flags & CTL_LUN_FLAG_UNMAP) 7361 data->lalba_lbp[0] |= SRC16_LBPME | SRC16_LBPRZ; 7362 7363 ctsio->scsi_status = SCSI_STATUS_OK; 7364 7365 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7366 ctsio->be_move_done = ctl_config_move_done; 7367 ctl_datamove((union ctl_io *)ctsio); 7368 7369 return (CTL_RETVAL_COMPLETE); 7370} 7371 7372int 7373ctl_read_defect(struct ctl_scsiio *ctsio) 7374{ 7375 struct scsi_read_defect_data_10 *ccb10; 7376 struct scsi_read_defect_data_12 *ccb12; 7377 struct scsi_read_defect_data_hdr_10 *data10; 7378 struct scsi_read_defect_data_hdr_12 *data12; 7379 struct ctl_lun *lun; 7380 uint32_t alloc_len, data_len; 7381 uint8_t format; 7382 7383 CTL_DEBUG_PRINT(("ctl_read_defect\n")); 7384 7385 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7386 7387 if (ctsio->cdb[0] == READ_DEFECT_DATA_10) { 7388 ccb10 = (struct scsi_read_defect_data_10 *)&ctsio->cdb; 7389 format = ccb10->format; 7390 alloc_len = scsi_2btoul(ccb10->alloc_length); 7391 data_len = sizeof(*data10); 7392 } else { 7393 ccb12 = (struct scsi_read_defect_data_12 *)&ctsio->cdb; 7394 format = ccb12->format; 7395 alloc_len = scsi_4btoul(ccb12->alloc_length); 7396 data_len = sizeof(*data12); 7397 } 7398 if (alloc_len == 0) { 7399 ctl_set_success(ctsio); 7400 ctl_done((union ctl_io *)ctsio); 7401 return (CTL_RETVAL_COMPLETE); 7402 } 7403 7404 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 7405 if (data_len < alloc_len) { 7406 ctsio->residual = alloc_len - data_len; 7407 ctsio->kern_data_len = data_len; 7408 ctsio->kern_total_len = data_len; 7409 } else { 7410 ctsio->residual = 0; 7411 ctsio->kern_data_len = alloc_len; 7412 ctsio->kern_total_len = alloc_len; 7413 } 7414 ctsio->kern_data_resid = 0; 7415 ctsio->kern_rel_offset = 0; 7416 ctsio->kern_sg_entries = 0; 7417 7418 if (ctsio->cdb[0] == READ_DEFECT_DATA_10) { 7419 data10 = (struct scsi_read_defect_data_hdr_10 *) 7420 ctsio->kern_data_ptr; 7421 data10->format = format; 7422 scsi_ulto2b(0, data10->length); 7423 } else { 7424 data12 = (struct scsi_read_defect_data_hdr_12 *) 7425 ctsio->kern_data_ptr; 7426 data12->format = format; 7427 scsi_ulto2b(0, data12->generation); 7428 scsi_ulto4b(0, data12->length); 7429 } 7430 7431 ctsio->scsi_status = SCSI_STATUS_OK; 7432 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7433 ctsio->be_move_done = ctl_config_move_done; 7434 ctl_datamove((union ctl_io *)ctsio); 7435 return (CTL_RETVAL_COMPLETE); 7436} 7437 7438int 7439ctl_report_tagret_port_groups(struct ctl_scsiio *ctsio) 7440{ 7441 struct scsi_maintenance_in *cdb; 7442 int retval; 7443 int alloc_len, ext, total_len = 0, g, p, pc, pg; 7444 int num_target_port_groups, num_target_ports, single; 7445 struct ctl_lun *lun; 7446 struct ctl_softc *softc; 7447 struct ctl_port *port; 7448 struct scsi_target_group_data *rtg_ptr; 7449 struct scsi_target_group_data_extended *rtg_ext_ptr; 7450 struct scsi_target_port_group_descriptor *tpg_desc; 7451 7452 CTL_DEBUG_PRINT(("ctl_report_tagret_port_groups\n")); 7453 7454 cdb = (struct scsi_maintenance_in *)ctsio->cdb; 7455 softc = control_softc; 7456 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7457 7458 retval = CTL_RETVAL_COMPLETE; 7459 7460 switch (cdb->byte2 & STG_PDF_MASK) { 7461 case STG_PDF_LENGTH: 7462 ext = 0; 7463 break; 7464 case STG_PDF_EXTENDED: 7465 ext = 1; 7466 break; 7467 default: 7468 ctl_set_invalid_field(/*ctsio*/ ctsio, 7469 /*sks_valid*/ 1, 7470 /*command*/ 1, 7471 /*field*/ 2, 7472 /*bit_valid*/ 1, 7473 /*bit*/ 5); 7474 ctl_done((union ctl_io *)ctsio); 7475 return(retval); 7476 } 7477 7478 single = ctl_is_single; 7479 if (single) 7480 num_target_port_groups = 1; 7481 else 7482 num_target_port_groups = NUM_TARGET_PORT_GROUPS; 7483 num_target_ports = 0; 7484 mtx_lock(&softc->ctl_lock); 7485 STAILQ_FOREACH(port, &softc->port_list, links) { 7486 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 7487 continue; 7488 if (ctl_map_lun_back(port->targ_port, lun->lun) >= CTL_MAX_LUNS) 7489 continue; 7490 num_target_ports++; 7491 } 7492 mtx_unlock(&softc->ctl_lock); 7493 7494 if (ext) 7495 total_len = sizeof(struct scsi_target_group_data_extended); 7496 else 7497 total_len = sizeof(struct scsi_target_group_data); 7498 total_len += sizeof(struct scsi_target_port_group_descriptor) * 7499 num_target_port_groups + 7500 sizeof(struct scsi_target_port_descriptor) * 7501 num_target_ports * num_target_port_groups; 7502 7503 alloc_len = scsi_4btoul(cdb->length); 7504 7505 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7506 7507 ctsio->kern_sg_entries = 0; 7508 7509 if (total_len < alloc_len) { 7510 ctsio->residual = alloc_len - total_len; 7511 ctsio->kern_data_len = total_len; 7512 ctsio->kern_total_len = total_len; 7513 } else { 7514 ctsio->residual = 0; 7515 ctsio->kern_data_len = alloc_len; 7516 ctsio->kern_total_len = alloc_len; 7517 } 7518 ctsio->kern_data_resid = 0; 7519 ctsio->kern_rel_offset = 0; 7520 7521 if (ext) { 7522 rtg_ext_ptr = (struct scsi_target_group_data_extended *) 7523 ctsio->kern_data_ptr; 7524 scsi_ulto4b(total_len - 4, rtg_ext_ptr->length); 7525 rtg_ext_ptr->format_type = 0x10; 7526 rtg_ext_ptr->implicit_transition_time = 0; 7527 tpg_desc = &rtg_ext_ptr->groups[0]; 7528 } else { 7529 rtg_ptr = (struct scsi_target_group_data *) 7530 ctsio->kern_data_ptr; 7531 scsi_ulto4b(total_len - 4, rtg_ptr->length); 7532 tpg_desc = &rtg_ptr->groups[0]; 7533 } 7534 7535 pg = ctsio->io_hdr.nexus.targ_port / CTL_MAX_PORTS; 7536 mtx_lock(&softc->ctl_lock); 7537 for (g = 0; g < num_target_port_groups; g++) { 7538 if (g == pg) 7539 tpg_desc->pref_state = TPG_PRIMARY | 7540 TPG_ASYMMETRIC_ACCESS_OPTIMIZED; 7541 else 7542 tpg_desc->pref_state = 7543 TPG_ASYMMETRIC_ACCESS_NONOPTIMIZED; 7544 tpg_desc->support = TPG_AO_SUP; 7545 if (!single) 7546 tpg_desc->support |= TPG_AN_SUP; 7547 scsi_ulto2b(g + 1, tpg_desc->target_port_group); 7548 tpg_desc->status = TPG_IMPLICIT; 7549 pc = 0; 7550 STAILQ_FOREACH(port, &softc->port_list, links) { 7551 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 7552 continue; 7553 if (ctl_map_lun_back(port->targ_port, lun->lun) >= 7554 CTL_MAX_LUNS) 7555 continue; 7556 p = port->targ_port % CTL_MAX_PORTS + g * CTL_MAX_PORTS; 7557 scsi_ulto2b(p, tpg_desc->descriptors[pc]. 7558 relative_target_port_identifier); 7559 pc++; 7560 } 7561 tpg_desc->target_port_count = pc; 7562 tpg_desc = (struct scsi_target_port_group_descriptor *) 7563 &tpg_desc->descriptors[pc]; 7564 } 7565 mtx_unlock(&softc->ctl_lock); 7566 7567 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7568 ctsio->be_move_done = ctl_config_move_done; 7569 7570 CTL_DEBUG_PRINT(("buf = %x %x %x %x %x %x %x %x\n", 7571 ctsio->kern_data_ptr[0], ctsio->kern_data_ptr[1], 7572 ctsio->kern_data_ptr[2], ctsio->kern_data_ptr[3], 7573 ctsio->kern_data_ptr[4], ctsio->kern_data_ptr[5], 7574 ctsio->kern_data_ptr[6], ctsio->kern_data_ptr[7])); 7575 7576 ctl_datamove((union ctl_io *)ctsio); 7577 return(retval); 7578} 7579 7580int 7581ctl_report_supported_opcodes(struct ctl_scsiio *ctsio) 7582{ 7583 struct ctl_lun *lun; 7584 struct scsi_report_supported_opcodes *cdb; 7585 const struct ctl_cmd_entry *entry, *sentry; 7586 struct scsi_report_supported_opcodes_all *all; 7587 struct scsi_report_supported_opcodes_descr *descr; 7588 struct scsi_report_supported_opcodes_one *one; 7589 int retval; 7590 int alloc_len, total_len; 7591 int opcode, service_action, i, j, num; 7592 7593 CTL_DEBUG_PRINT(("ctl_report_supported_opcodes\n")); 7594 7595 cdb = (struct scsi_report_supported_opcodes *)ctsio->cdb; 7596 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7597 7598 retval = CTL_RETVAL_COMPLETE; 7599 7600 opcode = cdb->requested_opcode; 7601 service_action = scsi_2btoul(cdb->requested_service_action); 7602 switch (cdb->options & RSO_OPTIONS_MASK) { 7603 case RSO_OPTIONS_ALL: 7604 num = 0; 7605 for (i = 0; i < 256; i++) { 7606 entry = &ctl_cmd_table[i]; 7607 if (entry->flags & CTL_CMD_FLAG_SA5) { 7608 for (j = 0; j < 32; j++) { 7609 sentry = &((const struct ctl_cmd_entry *) 7610 entry->execute)[j]; 7611 if (ctl_cmd_applicable( 7612 lun->be_lun->lun_type, sentry)) 7613 num++; 7614 } 7615 } else { 7616 if (ctl_cmd_applicable(lun->be_lun->lun_type, 7617 entry)) 7618 num++; 7619 } 7620 } 7621 total_len = sizeof(struct scsi_report_supported_opcodes_all) + 7622 num * sizeof(struct scsi_report_supported_opcodes_descr); 7623 break; 7624 case RSO_OPTIONS_OC: 7625 if (ctl_cmd_table[opcode].flags & CTL_CMD_FLAG_SA5) { 7626 ctl_set_invalid_field(/*ctsio*/ ctsio, 7627 /*sks_valid*/ 1, 7628 /*command*/ 1, 7629 /*field*/ 2, 7630 /*bit_valid*/ 1, 7631 /*bit*/ 2); 7632 ctl_done((union ctl_io *)ctsio); 7633 return (CTL_RETVAL_COMPLETE); 7634 } 7635 total_len = sizeof(struct scsi_report_supported_opcodes_one) + 32; 7636 break; 7637 case RSO_OPTIONS_OC_SA: 7638 if ((ctl_cmd_table[opcode].flags & CTL_CMD_FLAG_SA5) == 0 || 7639 service_action >= 32) { 7640 ctl_set_invalid_field(/*ctsio*/ ctsio, 7641 /*sks_valid*/ 1, 7642 /*command*/ 1, 7643 /*field*/ 2, 7644 /*bit_valid*/ 1, 7645 /*bit*/ 2); 7646 ctl_done((union ctl_io *)ctsio); 7647 return (CTL_RETVAL_COMPLETE); 7648 } 7649 total_len = sizeof(struct scsi_report_supported_opcodes_one) + 32; 7650 break; 7651 default: 7652 ctl_set_invalid_field(/*ctsio*/ ctsio, 7653 /*sks_valid*/ 1, 7654 /*command*/ 1, 7655 /*field*/ 2, 7656 /*bit_valid*/ 1, 7657 /*bit*/ 2); 7658 ctl_done((union ctl_io *)ctsio); 7659 return (CTL_RETVAL_COMPLETE); 7660 } 7661 7662 alloc_len = scsi_4btoul(cdb->length); 7663 7664 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7665 7666 ctsio->kern_sg_entries = 0; 7667 7668 if (total_len < alloc_len) { 7669 ctsio->residual = alloc_len - total_len; 7670 ctsio->kern_data_len = total_len; 7671 ctsio->kern_total_len = total_len; 7672 } else { 7673 ctsio->residual = 0; 7674 ctsio->kern_data_len = alloc_len; 7675 ctsio->kern_total_len = alloc_len; 7676 } 7677 ctsio->kern_data_resid = 0; 7678 ctsio->kern_rel_offset = 0; 7679 7680 switch (cdb->options & RSO_OPTIONS_MASK) { 7681 case RSO_OPTIONS_ALL: 7682 all = (struct scsi_report_supported_opcodes_all *) 7683 ctsio->kern_data_ptr; 7684 num = 0; 7685 for (i = 0; i < 256; i++) { 7686 entry = &ctl_cmd_table[i]; 7687 if (entry->flags & CTL_CMD_FLAG_SA5) { 7688 for (j = 0; j < 32; j++) { 7689 sentry = &((const struct ctl_cmd_entry *) 7690 entry->execute)[j]; 7691 if (!ctl_cmd_applicable( 7692 lun->be_lun->lun_type, sentry)) 7693 continue; 7694 descr = &all->descr[num++]; 7695 descr->opcode = i; 7696 scsi_ulto2b(j, descr->service_action); 7697 descr->flags = RSO_SERVACTV; 7698 scsi_ulto2b(sentry->length, 7699 descr->cdb_length); 7700 } 7701 } else { 7702 if (!ctl_cmd_applicable(lun->be_lun->lun_type, 7703 entry)) 7704 continue; 7705 descr = &all->descr[num++]; 7706 descr->opcode = i; 7707 scsi_ulto2b(0, descr->service_action); 7708 descr->flags = 0; 7709 scsi_ulto2b(entry->length, descr->cdb_length); 7710 } 7711 } 7712 scsi_ulto4b( 7713 num * sizeof(struct scsi_report_supported_opcodes_descr), 7714 all->length); 7715 break; 7716 case RSO_OPTIONS_OC: 7717 one = (struct scsi_report_supported_opcodes_one *) 7718 ctsio->kern_data_ptr; 7719 entry = &ctl_cmd_table[opcode]; 7720 goto fill_one; 7721 case RSO_OPTIONS_OC_SA: 7722 one = (struct scsi_report_supported_opcodes_one *) 7723 ctsio->kern_data_ptr; 7724 entry = &ctl_cmd_table[opcode]; 7725 entry = &((const struct ctl_cmd_entry *) 7726 entry->execute)[service_action]; 7727fill_one: 7728 if (ctl_cmd_applicable(lun->be_lun->lun_type, entry)) { 7729 one->support = 3; 7730 scsi_ulto2b(entry->length, one->cdb_length); 7731 one->cdb_usage[0] = opcode; 7732 memcpy(&one->cdb_usage[1], entry->usage, 7733 entry->length - 1); 7734 } else 7735 one->support = 1; 7736 break; 7737 } 7738 7739 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7740 ctsio->be_move_done = ctl_config_move_done; 7741 7742 ctl_datamove((union ctl_io *)ctsio); 7743 return(retval); 7744} 7745 7746int 7747ctl_report_supported_tmf(struct ctl_scsiio *ctsio) 7748{ 7749 struct ctl_lun *lun; 7750 struct scsi_report_supported_tmf *cdb; 7751 struct scsi_report_supported_tmf_data *data; 7752 int retval; 7753 int alloc_len, total_len; 7754 7755 CTL_DEBUG_PRINT(("ctl_report_supported_tmf\n")); 7756 7757 cdb = (struct scsi_report_supported_tmf *)ctsio->cdb; 7758 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7759 7760 retval = CTL_RETVAL_COMPLETE; 7761 7762 total_len = sizeof(struct scsi_report_supported_tmf_data); 7763 alloc_len = scsi_4btoul(cdb->length); 7764 7765 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7766 7767 ctsio->kern_sg_entries = 0; 7768 7769 if (total_len < alloc_len) { 7770 ctsio->residual = alloc_len - total_len; 7771 ctsio->kern_data_len = total_len; 7772 ctsio->kern_total_len = total_len; 7773 } else { 7774 ctsio->residual = 0; 7775 ctsio->kern_data_len = alloc_len; 7776 ctsio->kern_total_len = alloc_len; 7777 } 7778 ctsio->kern_data_resid = 0; 7779 ctsio->kern_rel_offset = 0; 7780 7781 data = (struct scsi_report_supported_tmf_data *)ctsio->kern_data_ptr; 7782 data->byte1 |= RST_ATS | RST_ATSS | RST_CTSS | RST_LURS | RST_TRS; 7783 data->byte2 |= RST_ITNRS; 7784 7785 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7786 ctsio->be_move_done = ctl_config_move_done; 7787 7788 ctl_datamove((union ctl_io *)ctsio); 7789 return (retval); 7790} 7791 7792int 7793ctl_report_timestamp(struct ctl_scsiio *ctsio) 7794{ 7795 struct ctl_lun *lun; 7796 struct scsi_report_timestamp *cdb; 7797 struct scsi_report_timestamp_data *data; 7798 struct timeval tv; 7799 int64_t timestamp; 7800 int retval; 7801 int alloc_len, total_len; 7802 7803 CTL_DEBUG_PRINT(("ctl_report_timestamp\n")); 7804 7805 cdb = (struct scsi_report_timestamp *)ctsio->cdb; 7806 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7807 7808 retval = CTL_RETVAL_COMPLETE; 7809 7810 total_len = sizeof(struct scsi_report_timestamp_data); 7811 alloc_len = scsi_4btoul(cdb->length); 7812 7813 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7814 7815 ctsio->kern_sg_entries = 0; 7816 7817 if (total_len < alloc_len) { 7818 ctsio->residual = alloc_len - total_len; 7819 ctsio->kern_data_len = total_len; 7820 ctsio->kern_total_len = total_len; 7821 } else { 7822 ctsio->residual = 0; 7823 ctsio->kern_data_len = alloc_len; 7824 ctsio->kern_total_len = alloc_len; 7825 } 7826 ctsio->kern_data_resid = 0; 7827 ctsio->kern_rel_offset = 0; 7828 7829 data = (struct scsi_report_timestamp_data *)ctsio->kern_data_ptr; 7830 scsi_ulto2b(sizeof(*data) - 2, data->length); 7831 data->origin = RTS_ORIG_OUTSIDE; 7832 getmicrotime(&tv); 7833 timestamp = (int64_t)tv.tv_sec * 1000 + tv.tv_usec / 1000; 7834 scsi_ulto4b(timestamp >> 16, data->timestamp); 7835 scsi_ulto2b(timestamp & 0xffff, &data->timestamp[4]); 7836 7837 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7838 ctsio->be_move_done = ctl_config_move_done; 7839 7840 ctl_datamove((union ctl_io *)ctsio); 7841 return (retval); 7842} 7843 7844int 7845ctl_persistent_reserve_in(struct ctl_scsiio *ctsio) 7846{ 7847 struct scsi_per_res_in *cdb; 7848 int alloc_len, total_len = 0; 7849 /* struct scsi_per_res_in_rsrv in_data; */ 7850 struct ctl_lun *lun; 7851 struct ctl_softc *softc; 7852 7853 CTL_DEBUG_PRINT(("ctl_persistent_reserve_in\n")); 7854 7855 softc = control_softc; 7856 7857 cdb = (struct scsi_per_res_in *)ctsio->cdb; 7858 7859 alloc_len = scsi_2btoul(cdb->length); 7860 7861 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7862 7863retry: 7864 mtx_lock(&lun->lun_lock); 7865 switch (cdb->action) { 7866 case SPRI_RK: /* read keys */ 7867 total_len = sizeof(struct scsi_per_res_in_keys) + 7868 lun->pr_key_count * 7869 sizeof(struct scsi_per_res_key); 7870 break; 7871 case SPRI_RR: /* read reservation */ 7872 if (lun->flags & CTL_LUN_PR_RESERVED) 7873 total_len = sizeof(struct scsi_per_res_in_rsrv); 7874 else 7875 total_len = sizeof(struct scsi_per_res_in_header); 7876 break; 7877 case SPRI_RC: /* report capabilities */ 7878 total_len = sizeof(struct scsi_per_res_cap); 7879 break; 7880 case SPRI_RS: /* read full status */ 7881 total_len = sizeof(struct scsi_per_res_in_header) + 7882 (sizeof(struct scsi_per_res_in_full_desc) + 256) * 7883 lun->pr_key_count; 7884 break; 7885 default: 7886 panic("Invalid PR type %x", cdb->action); 7887 } 7888 mtx_unlock(&lun->lun_lock); 7889 7890 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7891 7892 if (total_len < alloc_len) { 7893 ctsio->residual = alloc_len - total_len; 7894 ctsio->kern_data_len = total_len; 7895 ctsio->kern_total_len = total_len; 7896 } else { 7897 ctsio->residual = 0; 7898 ctsio->kern_data_len = alloc_len; 7899 ctsio->kern_total_len = alloc_len; 7900 } 7901 7902 ctsio->kern_data_resid = 0; 7903 ctsio->kern_rel_offset = 0; 7904 ctsio->kern_sg_entries = 0; 7905 7906 mtx_lock(&lun->lun_lock); 7907 switch (cdb->action) { 7908 case SPRI_RK: { // read keys 7909 struct scsi_per_res_in_keys *res_keys; 7910 int i, key_count; 7911 7912 res_keys = (struct scsi_per_res_in_keys*)ctsio->kern_data_ptr; 7913 7914 /* 7915 * We had to drop the lock to allocate our buffer, which 7916 * leaves time for someone to come in with another 7917 * persistent reservation. (That is unlikely, though, 7918 * since this should be the only persistent reservation 7919 * command active right now.) 7920 */ 7921 if (total_len != (sizeof(struct scsi_per_res_in_keys) + 7922 (lun->pr_key_count * 7923 sizeof(struct scsi_per_res_key)))){ 7924 mtx_unlock(&lun->lun_lock); 7925 free(ctsio->kern_data_ptr, M_CTL); 7926 printf("%s: reservation length changed, retrying\n", 7927 __func__); 7928 goto retry; 7929 } 7930 7931 scsi_ulto4b(lun->PRGeneration, res_keys->header.generation); 7932 7933 scsi_ulto4b(sizeof(struct scsi_per_res_key) * 7934 lun->pr_key_count, res_keys->header.length); 7935 7936 for (i = 0, key_count = 0; i < 2*CTL_MAX_INITIATORS; i++) { 7937 if (lun->pr_keys[i] == 0) 7938 continue; 7939 7940 /* 7941 * We used lun->pr_key_count to calculate the 7942 * size to allocate. If it turns out the number of 7943 * initiators with the registered flag set is 7944 * larger than that (i.e. they haven't been kept in 7945 * sync), we've got a problem. 7946 */ 7947 if (key_count >= lun->pr_key_count) { 7948#ifdef NEEDTOPORT 7949 csevent_log(CSC_CTL | CSC_SHELF_SW | 7950 CTL_PR_ERROR, 7951 csevent_LogType_Fault, 7952 csevent_AlertLevel_Yellow, 7953 csevent_FRU_ShelfController, 7954 csevent_FRU_Firmware, 7955 csevent_FRU_Unknown, 7956 "registered keys %d >= key " 7957 "count %d", key_count, 7958 lun->pr_key_count); 7959#endif 7960 key_count++; 7961 continue; 7962 } 7963 scsi_u64to8b(lun->pr_keys[i], 7964 res_keys->keys[key_count].key); 7965 key_count++; 7966 } 7967 break; 7968 } 7969 case SPRI_RR: { // read reservation 7970 struct scsi_per_res_in_rsrv *res; 7971 int tmp_len, header_only; 7972 7973 res = (struct scsi_per_res_in_rsrv *)ctsio->kern_data_ptr; 7974 7975 scsi_ulto4b(lun->PRGeneration, res->header.generation); 7976 7977 if (lun->flags & CTL_LUN_PR_RESERVED) 7978 { 7979 tmp_len = sizeof(struct scsi_per_res_in_rsrv); 7980 scsi_ulto4b(sizeof(struct scsi_per_res_in_rsrv_data), 7981 res->header.length); 7982 header_only = 0; 7983 } else { 7984 tmp_len = sizeof(struct scsi_per_res_in_header); 7985 scsi_ulto4b(0, res->header.length); 7986 header_only = 1; 7987 } 7988 7989 /* 7990 * We had to drop the lock to allocate our buffer, which 7991 * leaves time for someone to come in with another 7992 * persistent reservation. (That is unlikely, though, 7993 * since this should be the only persistent reservation 7994 * command active right now.) 7995 */ 7996 if (tmp_len != total_len) { 7997 mtx_unlock(&lun->lun_lock); 7998 free(ctsio->kern_data_ptr, M_CTL); 7999 printf("%s: reservation status changed, retrying\n", 8000 __func__); 8001 goto retry; 8002 } 8003 8004 /* 8005 * No reservation held, so we're done. 8006 */ 8007 if (header_only != 0) 8008 break; 8009 8010 /* 8011 * If the registration is an All Registrants type, the key 8012 * is 0, since it doesn't really matter. 8013 */ 8014 if (lun->pr_res_idx != CTL_PR_ALL_REGISTRANTS) { 8015 scsi_u64to8b(lun->pr_keys[lun->pr_res_idx], 8016 res->data.reservation); 8017 } 8018 res->data.scopetype = lun->res_type; 8019 break; 8020 } 8021 case SPRI_RC: //report capabilities 8022 { 8023 struct scsi_per_res_cap *res_cap; 8024 uint16_t type_mask; 8025 8026 res_cap = (struct scsi_per_res_cap *)ctsio->kern_data_ptr; 8027 scsi_ulto2b(sizeof(*res_cap), res_cap->length); 8028 res_cap->flags2 |= SPRI_TMV | SPRI_ALLOW_5; 8029 type_mask = SPRI_TM_WR_EX_AR | 8030 SPRI_TM_EX_AC_RO | 8031 SPRI_TM_WR_EX_RO | 8032 SPRI_TM_EX_AC | 8033 SPRI_TM_WR_EX | 8034 SPRI_TM_EX_AC_AR; 8035 scsi_ulto2b(type_mask, res_cap->type_mask); 8036 break; 8037 } 8038 case SPRI_RS: { // read full status 8039 struct scsi_per_res_in_full *res_status; 8040 struct scsi_per_res_in_full_desc *res_desc; 8041 struct ctl_port *port; 8042 int i, len; 8043 8044 res_status = (struct scsi_per_res_in_full*)ctsio->kern_data_ptr; 8045 8046 /* 8047 * We had to drop the lock to allocate our buffer, which 8048 * leaves time for someone to come in with another 8049 * persistent reservation. (That is unlikely, though, 8050 * since this should be the only persistent reservation 8051 * command active right now.) 8052 */ 8053 if (total_len < (sizeof(struct scsi_per_res_in_header) + 8054 (sizeof(struct scsi_per_res_in_full_desc) + 256) * 8055 lun->pr_key_count)){ 8056 mtx_unlock(&lun->lun_lock); 8057 free(ctsio->kern_data_ptr, M_CTL); 8058 printf("%s: reservation length changed, retrying\n", 8059 __func__); 8060 goto retry; 8061 } 8062 8063 scsi_ulto4b(lun->PRGeneration, res_status->header.generation); 8064 8065 res_desc = &res_status->desc[0]; 8066 for (i = 0; i < 2*CTL_MAX_INITIATORS; i++) { 8067 if (lun->pr_keys[i] == 0) 8068 continue; 8069 8070 scsi_u64to8b(lun->pr_keys[i], res_desc->res_key.key); 8071 if ((lun->flags & CTL_LUN_PR_RESERVED) && 8072 (lun->pr_res_idx == i || 8073 lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS)) { 8074 res_desc->flags = SPRI_FULL_R_HOLDER; 8075 res_desc->scopetype = lun->res_type; 8076 } 8077 scsi_ulto2b(i / CTL_MAX_INIT_PER_PORT, 8078 res_desc->rel_trgt_port_id); 8079 len = 0; 8080 port = softc->ctl_ports[ 8081 ctl_port_idx(i / CTL_MAX_INIT_PER_PORT)]; 8082 if (port != NULL) 8083 len = ctl_create_iid(port, 8084 i % CTL_MAX_INIT_PER_PORT, 8085 res_desc->transport_id); 8086 scsi_ulto4b(len, res_desc->additional_length); 8087 res_desc = (struct scsi_per_res_in_full_desc *) 8088 &res_desc->transport_id[len]; 8089 } 8090 scsi_ulto4b((uint8_t *)res_desc - (uint8_t *)&res_status->desc[0], 8091 res_status->header.length); 8092 break; 8093 } 8094 default: 8095 /* 8096 * This is a bug, because we just checked for this above, 8097 * and should have returned an error. 8098 */ 8099 panic("Invalid PR type %x", cdb->action); 8100 break; /* NOTREACHED */ 8101 } 8102 mtx_unlock(&lun->lun_lock); 8103 8104 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 8105 ctsio->be_move_done = ctl_config_move_done; 8106 8107 CTL_DEBUG_PRINT(("buf = %x %x %x %x %x %x %x %x\n", 8108 ctsio->kern_data_ptr[0], ctsio->kern_data_ptr[1], 8109 ctsio->kern_data_ptr[2], ctsio->kern_data_ptr[3], 8110 ctsio->kern_data_ptr[4], ctsio->kern_data_ptr[5], 8111 ctsio->kern_data_ptr[6], ctsio->kern_data_ptr[7])); 8112 8113 ctl_datamove((union ctl_io *)ctsio); 8114 8115 return (CTL_RETVAL_COMPLETE); 8116} 8117 8118/* 8119 * Returns 0 if ctl_persistent_reserve_out() should continue, non-zero if 8120 * it should return. 8121 */ 8122static int 8123ctl_pro_preempt(struct ctl_softc *softc, struct ctl_lun *lun, uint64_t res_key, 8124 uint64_t sa_res_key, uint8_t type, uint32_t residx, 8125 struct ctl_scsiio *ctsio, struct scsi_per_res_out *cdb, 8126 struct scsi_per_res_out_parms* param) 8127{ 8128 union ctl_ha_msg persis_io; 8129 int retval, i; 8130 int isc_retval; 8131 8132 retval = 0; 8133 8134 mtx_lock(&lun->lun_lock); 8135 if (sa_res_key == 0) { 8136 if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS) { 8137 /* validate scope and type */ 8138 if ((cdb->scope_type & SPR_SCOPE_MASK) != 8139 SPR_LU_SCOPE) { 8140 mtx_unlock(&lun->lun_lock); 8141 ctl_set_invalid_field(/*ctsio*/ ctsio, 8142 /*sks_valid*/ 1, 8143 /*command*/ 1, 8144 /*field*/ 2, 8145 /*bit_valid*/ 1, 8146 /*bit*/ 4); 8147 ctl_done((union ctl_io *)ctsio); 8148 return (1); 8149 } 8150 8151 if (type>8 || type==2 || type==4 || type==0) { 8152 mtx_unlock(&lun->lun_lock); 8153 ctl_set_invalid_field(/*ctsio*/ ctsio, 8154 /*sks_valid*/ 1, 8155 /*command*/ 1, 8156 /*field*/ 2, 8157 /*bit_valid*/ 1, 8158 /*bit*/ 0); 8159 ctl_done((union ctl_io *)ctsio); 8160 return (1); 8161 } 8162 8163 /* 8164 * Unregister everybody else and build UA for 8165 * them 8166 */ 8167 for(i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8168 if (i == residx || lun->pr_keys[i] == 0) 8169 continue; 8170 8171 if (!persis_offset 8172 && i <CTL_MAX_INITIATORS) 8173 lun->pending_ua[i] |= 8174 CTL_UA_REG_PREEMPT; 8175 else if (persis_offset 8176 && i >= persis_offset) 8177 lun->pending_ua[i-persis_offset] |= 8178 CTL_UA_REG_PREEMPT; 8179 lun->pr_keys[i] = 0; 8180 } 8181 lun->pr_key_count = 1; 8182 lun->res_type = type; 8183 if (lun->res_type != SPR_TYPE_WR_EX_AR 8184 && lun->res_type != SPR_TYPE_EX_AC_AR) 8185 lun->pr_res_idx = residx; 8186 8187 /* send msg to other side */ 8188 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8189 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8190 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 8191 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8192 persis_io.pr.pr_info.res_type = type; 8193 memcpy(persis_io.pr.pr_info.sa_res_key, 8194 param->serv_act_res_key, 8195 sizeof(param->serv_act_res_key)); 8196 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8197 &persis_io, sizeof(persis_io), 0)) > 8198 CTL_HA_STATUS_SUCCESS) { 8199 printf("CTL:Persis Out error returned " 8200 "from ctl_ha_msg_send %d\n", 8201 isc_retval); 8202 } 8203 } else { 8204 /* not all registrants */ 8205 mtx_unlock(&lun->lun_lock); 8206 free(ctsio->kern_data_ptr, M_CTL); 8207 ctl_set_invalid_field(ctsio, 8208 /*sks_valid*/ 1, 8209 /*command*/ 0, 8210 /*field*/ 8, 8211 /*bit_valid*/ 0, 8212 /*bit*/ 0); 8213 ctl_done((union ctl_io *)ctsio); 8214 return (1); 8215 } 8216 } else if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS 8217 || !(lun->flags & CTL_LUN_PR_RESERVED)) { 8218 int found = 0; 8219 8220 if (res_key == sa_res_key) { 8221 /* special case */ 8222 /* 8223 * The spec implies this is not good but doesn't 8224 * say what to do. There are two choices either 8225 * generate a res conflict or check condition 8226 * with illegal field in parameter data. Since 8227 * that is what is done when the sa_res_key is 8228 * zero I'll take that approach since this has 8229 * to do with the sa_res_key. 8230 */ 8231 mtx_unlock(&lun->lun_lock); 8232 free(ctsio->kern_data_ptr, M_CTL); 8233 ctl_set_invalid_field(ctsio, 8234 /*sks_valid*/ 1, 8235 /*command*/ 0, 8236 /*field*/ 8, 8237 /*bit_valid*/ 0, 8238 /*bit*/ 0); 8239 ctl_done((union ctl_io *)ctsio); 8240 return (1); 8241 } 8242 8243 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8244 if (lun->pr_keys[i] != sa_res_key) 8245 continue; 8246 8247 found = 1; 8248 lun->pr_keys[i] = 0; 8249 lun->pr_key_count--; 8250 8251 if (!persis_offset && i < CTL_MAX_INITIATORS) 8252 lun->pending_ua[i] |= CTL_UA_REG_PREEMPT; 8253 else if (persis_offset && i >= persis_offset) 8254 lun->pending_ua[i-persis_offset] |= 8255 CTL_UA_REG_PREEMPT; 8256 } 8257 if (!found) { 8258 mtx_unlock(&lun->lun_lock); 8259 free(ctsio->kern_data_ptr, M_CTL); 8260 ctl_set_reservation_conflict(ctsio); 8261 ctl_done((union ctl_io *)ctsio); 8262 return (CTL_RETVAL_COMPLETE); 8263 } 8264 /* send msg to other side */ 8265 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8266 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8267 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 8268 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8269 persis_io.pr.pr_info.res_type = type; 8270 memcpy(persis_io.pr.pr_info.sa_res_key, 8271 param->serv_act_res_key, 8272 sizeof(param->serv_act_res_key)); 8273 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8274 &persis_io, sizeof(persis_io), 0)) > 8275 CTL_HA_STATUS_SUCCESS) { 8276 printf("CTL:Persis Out error returned from " 8277 "ctl_ha_msg_send %d\n", isc_retval); 8278 } 8279 } else { 8280 /* Reserved but not all registrants */ 8281 /* sa_res_key is res holder */ 8282 if (sa_res_key == lun->pr_keys[lun->pr_res_idx]) { 8283 /* validate scope and type */ 8284 if ((cdb->scope_type & SPR_SCOPE_MASK) != 8285 SPR_LU_SCOPE) { 8286 mtx_unlock(&lun->lun_lock); 8287 ctl_set_invalid_field(/*ctsio*/ ctsio, 8288 /*sks_valid*/ 1, 8289 /*command*/ 1, 8290 /*field*/ 2, 8291 /*bit_valid*/ 1, 8292 /*bit*/ 4); 8293 ctl_done((union ctl_io *)ctsio); 8294 return (1); 8295 } 8296 8297 if (type>8 || type==2 || type==4 || type==0) { 8298 mtx_unlock(&lun->lun_lock); 8299 ctl_set_invalid_field(/*ctsio*/ ctsio, 8300 /*sks_valid*/ 1, 8301 /*command*/ 1, 8302 /*field*/ 2, 8303 /*bit_valid*/ 1, 8304 /*bit*/ 0); 8305 ctl_done((union ctl_io *)ctsio); 8306 return (1); 8307 } 8308 8309 /* 8310 * Do the following: 8311 * if sa_res_key != res_key remove all 8312 * registrants w/sa_res_key and generate UA 8313 * for these registrants(Registrations 8314 * Preempted) if it wasn't an exclusive 8315 * reservation generate UA(Reservations 8316 * Preempted) for all other registered nexuses 8317 * if the type has changed. Establish the new 8318 * reservation and holder. If res_key and 8319 * sa_res_key are the same do the above 8320 * except don't unregister the res holder. 8321 */ 8322 8323 for(i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8324 if (i == residx || lun->pr_keys[i] == 0) 8325 continue; 8326 8327 if (sa_res_key == lun->pr_keys[i]) { 8328 lun->pr_keys[i] = 0; 8329 lun->pr_key_count--; 8330 8331 if (!persis_offset 8332 && i < CTL_MAX_INITIATORS) 8333 lun->pending_ua[i] |= 8334 CTL_UA_REG_PREEMPT; 8335 else if (persis_offset 8336 && i >= persis_offset) 8337 lun->pending_ua[i-persis_offset] |= 8338 CTL_UA_REG_PREEMPT; 8339 } else if (type != lun->res_type 8340 && (lun->res_type == SPR_TYPE_WR_EX_RO 8341 || lun->res_type ==SPR_TYPE_EX_AC_RO)){ 8342 if (!persis_offset 8343 && i < CTL_MAX_INITIATORS) 8344 lun->pending_ua[i] |= 8345 CTL_UA_RES_RELEASE; 8346 else if (persis_offset 8347 && i >= persis_offset) 8348 lun->pending_ua[ 8349 i-persis_offset] |= 8350 CTL_UA_RES_RELEASE; 8351 } 8352 } 8353 lun->res_type = type; 8354 if (lun->res_type != SPR_TYPE_WR_EX_AR 8355 && lun->res_type != SPR_TYPE_EX_AC_AR) 8356 lun->pr_res_idx = residx; 8357 else 8358 lun->pr_res_idx = CTL_PR_ALL_REGISTRANTS; 8359 8360 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8361 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8362 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 8363 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8364 persis_io.pr.pr_info.res_type = type; 8365 memcpy(persis_io.pr.pr_info.sa_res_key, 8366 param->serv_act_res_key, 8367 sizeof(param->serv_act_res_key)); 8368 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8369 &persis_io, sizeof(persis_io), 0)) > 8370 CTL_HA_STATUS_SUCCESS) { 8371 printf("CTL:Persis Out error returned " 8372 "from ctl_ha_msg_send %d\n", 8373 isc_retval); 8374 } 8375 } else { 8376 /* 8377 * sa_res_key is not the res holder just 8378 * remove registrants 8379 */ 8380 int found=0; 8381 8382 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8383 if (sa_res_key != lun->pr_keys[i]) 8384 continue; 8385 8386 found = 1; 8387 lun->pr_keys[i] = 0; 8388 lun->pr_key_count--; 8389 8390 if (!persis_offset 8391 && i < CTL_MAX_INITIATORS) 8392 lun->pending_ua[i] |= 8393 CTL_UA_REG_PREEMPT; 8394 else if (persis_offset 8395 && i >= persis_offset) 8396 lun->pending_ua[i-persis_offset] |= 8397 CTL_UA_REG_PREEMPT; 8398 } 8399 8400 if (!found) { 8401 mtx_unlock(&lun->lun_lock); 8402 free(ctsio->kern_data_ptr, M_CTL); 8403 ctl_set_reservation_conflict(ctsio); 8404 ctl_done((union ctl_io *)ctsio); 8405 return (1); 8406 } 8407 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8408 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8409 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 8410 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8411 persis_io.pr.pr_info.res_type = type; 8412 memcpy(persis_io.pr.pr_info.sa_res_key, 8413 param->serv_act_res_key, 8414 sizeof(param->serv_act_res_key)); 8415 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8416 &persis_io, sizeof(persis_io), 0)) > 8417 CTL_HA_STATUS_SUCCESS) { 8418 printf("CTL:Persis Out error returned " 8419 "from ctl_ha_msg_send %d\n", 8420 isc_retval); 8421 } 8422 } 8423 } 8424 8425 lun->PRGeneration++; 8426 mtx_unlock(&lun->lun_lock); 8427 8428 return (retval); 8429} 8430 8431static void 8432ctl_pro_preempt_other(struct ctl_lun *lun, union ctl_ha_msg *msg) 8433{ 8434 uint64_t sa_res_key; 8435 int i; 8436 8437 sa_res_key = scsi_8btou64(msg->pr.pr_info.sa_res_key); 8438 8439 if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS 8440 || lun->pr_res_idx == CTL_PR_NO_RESERVATION 8441 || sa_res_key != lun->pr_keys[lun->pr_res_idx]) { 8442 if (sa_res_key == 0) { 8443 /* 8444 * Unregister everybody else and build UA for 8445 * them 8446 */ 8447 for(i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8448 if (i == msg->pr.pr_info.residx || 8449 lun->pr_keys[i] == 0) 8450 continue; 8451 8452 if (!persis_offset 8453 && i < CTL_MAX_INITIATORS) 8454 lun->pending_ua[i] |= 8455 CTL_UA_REG_PREEMPT; 8456 else if (persis_offset && i >= persis_offset) 8457 lun->pending_ua[i - persis_offset] |= 8458 CTL_UA_REG_PREEMPT; 8459 lun->pr_keys[i] = 0; 8460 } 8461 8462 lun->pr_key_count = 1; 8463 lun->res_type = msg->pr.pr_info.res_type; 8464 if (lun->res_type != SPR_TYPE_WR_EX_AR 8465 && lun->res_type != SPR_TYPE_EX_AC_AR) 8466 lun->pr_res_idx = msg->pr.pr_info.residx; 8467 } else { 8468 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8469 if (sa_res_key == lun->pr_keys[i]) 8470 continue; 8471 8472 lun->pr_keys[i] = 0; 8473 lun->pr_key_count--; 8474 8475 if (!persis_offset 8476 && i < persis_offset) 8477 lun->pending_ua[i] |= 8478 CTL_UA_REG_PREEMPT; 8479 else if (persis_offset 8480 && i >= persis_offset) 8481 lun->pending_ua[i - persis_offset] |= 8482 CTL_UA_REG_PREEMPT; 8483 } 8484 } 8485 } else { 8486 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8487 if (i == msg->pr.pr_info.residx || 8488 lun->pr_keys[i] == 0) 8489 continue; 8490 8491 if (sa_res_key == lun->pr_keys[i]) { 8492 lun->pr_keys[i] = 0; 8493 lun->pr_key_count--; 8494 if (!persis_offset 8495 && i < CTL_MAX_INITIATORS) 8496 lun->pending_ua[i] |= 8497 CTL_UA_REG_PREEMPT; 8498 else if (persis_offset 8499 && i >= persis_offset) 8500 lun->pending_ua[i - persis_offset] |= 8501 CTL_UA_REG_PREEMPT; 8502 } else if (msg->pr.pr_info.res_type != lun->res_type 8503 && (lun->res_type == SPR_TYPE_WR_EX_RO 8504 || lun->res_type == SPR_TYPE_EX_AC_RO)) { 8505 if (!persis_offset 8506 && i < persis_offset) 8507 lun->pending_ua[i] |= 8508 CTL_UA_RES_RELEASE; 8509 else if (persis_offset 8510 && i >= persis_offset) 8511 lun->pending_ua[i - persis_offset] |= 8512 CTL_UA_RES_RELEASE; 8513 } 8514 } 8515 lun->res_type = msg->pr.pr_info.res_type; 8516 if (lun->res_type != SPR_TYPE_WR_EX_AR 8517 && lun->res_type != SPR_TYPE_EX_AC_AR) 8518 lun->pr_res_idx = msg->pr.pr_info.residx; 8519 else 8520 lun->pr_res_idx = CTL_PR_ALL_REGISTRANTS; 8521 } 8522 lun->PRGeneration++; 8523 8524} 8525 8526 8527int 8528ctl_persistent_reserve_out(struct ctl_scsiio *ctsio) 8529{ 8530 int retval; 8531 int isc_retval; 8532 u_int32_t param_len; 8533 struct scsi_per_res_out *cdb; 8534 struct ctl_lun *lun; 8535 struct scsi_per_res_out_parms* param; 8536 struct ctl_softc *softc; 8537 uint32_t residx; 8538 uint64_t res_key, sa_res_key; 8539 uint8_t type; 8540 union ctl_ha_msg persis_io; 8541 int i; 8542 8543 CTL_DEBUG_PRINT(("ctl_persistent_reserve_out\n")); 8544 8545 retval = CTL_RETVAL_COMPLETE; 8546 8547 softc = control_softc; 8548 8549 cdb = (struct scsi_per_res_out *)ctsio->cdb; 8550 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 8551 8552 /* 8553 * We only support whole-LUN scope. The scope & type are ignored for 8554 * register, register and ignore existing key and clear. 8555 * We sometimes ignore scope and type on preempts too!! 8556 * Verify reservation type here as well. 8557 */ 8558 type = cdb->scope_type & SPR_TYPE_MASK; 8559 if ((cdb->action == SPRO_RESERVE) 8560 || (cdb->action == SPRO_RELEASE)) { 8561 if ((cdb->scope_type & SPR_SCOPE_MASK) != SPR_LU_SCOPE) { 8562 ctl_set_invalid_field(/*ctsio*/ ctsio, 8563 /*sks_valid*/ 1, 8564 /*command*/ 1, 8565 /*field*/ 2, 8566 /*bit_valid*/ 1, 8567 /*bit*/ 4); 8568 ctl_done((union ctl_io *)ctsio); 8569 return (CTL_RETVAL_COMPLETE); 8570 } 8571 8572 if (type>8 || type==2 || type==4 || type==0) { 8573 ctl_set_invalid_field(/*ctsio*/ ctsio, 8574 /*sks_valid*/ 1, 8575 /*command*/ 1, 8576 /*field*/ 2, 8577 /*bit_valid*/ 1, 8578 /*bit*/ 0); 8579 ctl_done((union ctl_io *)ctsio); 8580 return (CTL_RETVAL_COMPLETE); 8581 } 8582 } 8583 8584 param_len = scsi_4btoul(cdb->length); 8585 8586 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 8587 ctsio->kern_data_ptr = malloc(param_len, M_CTL, M_WAITOK); 8588 ctsio->kern_data_len = param_len; 8589 ctsio->kern_total_len = param_len; 8590 ctsio->kern_data_resid = 0; 8591 ctsio->kern_rel_offset = 0; 8592 ctsio->kern_sg_entries = 0; 8593 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 8594 ctsio->be_move_done = ctl_config_move_done; 8595 ctl_datamove((union ctl_io *)ctsio); 8596 8597 return (CTL_RETVAL_COMPLETE); 8598 } 8599 8600 param = (struct scsi_per_res_out_parms *)ctsio->kern_data_ptr; 8601 8602 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 8603 res_key = scsi_8btou64(param->res_key.key); 8604 sa_res_key = scsi_8btou64(param->serv_act_res_key); 8605 8606 /* 8607 * Validate the reservation key here except for SPRO_REG_IGNO 8608 * This must be done for all other service actions 8609 */ 8610 if ((cdb->action & SPRO_ACTION_MASK) != SPRO_REG_IGNO) { 8611 mtx_lock(&lun->lun_lock); 8612 if (lun->pr_keys[residx] != 0) { 8613 if (res_key != lun->pr_keys[residx]) { 8614 /* 8615 * The current key passed in doesn't match 8616 * the one the initiator previously 8617 * registered. 8618 */ 8619 mtx_unlock(&lun->lun_lock); 8620 free(ctsio->kern_data_ptr, M_CTL); 8621 ctl_set_reservation_conflict(ctsio); 8622 ctl_done((union ctl_io *)ctsio); 8623 return (CTL_RETVAL_COMPLETE); 8624 } 8625 } else if ((cdb->action & SPRO_ACTION_MASK) != SPRO_REGISTER) { 8626 /* 8627 * We are not registered 8628 */ 8629 mtx_unlock(&lun->lun_lock); 8630 free(ctsio->kern_data_ptr, M_CTL); 8631 ctl_set_reservation_conflict(ctsio); 8632 ctl_done((union ctl_io *)ctsio); 8633 return (CTL_RETVAL_COMPLETE); 8634 } else if (res_key != 0) { 8635 /* 8636 * We are not registered and trying to register but 8637 * the register key isn't zero. 8638 */ 8639 mtx_unlock(&lun->lun_lock); 8640 free(ctsio->kern_data_ptr, M_CTL); 8641 ctl_set_reservation_conflict(ctsio); 8642 ctl_done((union ctl_io *)ctsio); 8643 return (CTL_RETVAL_COMPLETE); 8644 } 8645 mtx_unlock(&lun->lun_lock); 8646 } 8647 8648 switch (cdb->action & SPRO_ACTION_MASK) { 8649 case SPRO_REGISTER: 8650 case SPRO_REG_IGNO: { 8651 8652#if 0 8653 printf("Registration received\n"); 8654#endif 8655 8656 /* 8657 * We don't support any of these options, as we report in 8658 * the read capabilities request (see 8659 * ctl_persistent_reserve_in(), above). 8660 */ 8661 if ((param->flags & SPR_SPEC_I_PT) 8662 || (param->flags & SPR_ALL_TG_PT) 8663 || (param->flags & SPR_APTPL)) { 8664 int bit_ptr; 8665 8666 if (param->flags & SPR_APTPL) 8667 bit_ptr = 0; 8668 else if (param->flags & SPR_ALL_TG_PT) 8669 bit_ptr = 2; 8670 else /* SPR_SPEC_I_PT */ 8671 bit_ptr = 3; 8672 8673 free(ctsio->kern_data_ptr, M_CTL); 8674 ctl_set_invalid_field(ctsio, 8675 /*sks_valid*/ 1, 8676 /*command*/ 0, 8677 /*field*/ 20, 8678 /*bit_valid*/ 1, 8679 /*bit*/ bit_ptr); 8680 ctl_done((union ctl_io *)ctsio); 8681 return (CTL_RETVAL_COMPLETE); 8682 } 8683 8684 mtx_lock(&lun->lun_lock); 8685 8686 /* 8687 * The initiator wants to clear the 8688 * key/unregister. 8689 */ 8690 if (sa_res_key == 0) { 8691 if ((res_key == 0 8692 && (cdb->action & SPRO_ACTION_MASK) == SPRO_REGISTER) 8693 || ((cdb->action & SPRO_ACTION_MASK) == SPRO_REG_IGNO 8694 && lun->pr_keys[residx] == 0)) { 8695 mtx_unlock(&lun->lun_lock); 8696 goto done; 8697 } 8698 8699 lun->pr_keys[residx] = 0; 8700 lun->pr_key_count--; 8701 8702 if (residx == lun->pr_res_idx) { 8703 lun->flags &= ~CTL_LUN_PR_RESERVED; 8704 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8705 8706 if ((lun->res_type == SPR_TYPE_WR_EX_RO 8707 || lun->res_type == SPR_TYPE_EX_AC_RO) 8708 && lun->pr_key_count) { 8709 /* 8710 * If the reservation is a registrants 8711 * only type we need to generate a UA 8712 * for other registered inits. The 8713 * sense code should be RESERVATIONS 8714 * RELEASED 8715 */ 8716 8717 for (i = 0; i < CTL_MAX_INITIATORS;i++){ 8718 if (lun->pr_keys[ 8719 i + persis_offset] == 0) 8720 continue; 8721 lun->pending_ua[i] |= 8722 CTL_UA_RES_RELEASE; 8723 } 8724 } 8725 lun->res_type = 0; 8726 } else if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS) { 8727 if (lun->pr_key_count==0) { 8728 lun->flags &= ~CTL_LUN_PR_RESERVED; 8729 lun->res_type = 0; 8730 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8731 } 8732 } 8733 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8734 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8735 persis_io.pr.pr_info.action = CTL_PR_UNREG_KEY; 8736 persis_io.pr.pr_info.residx = residx; 8737 if ((isc_retval = ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8738 &persis_io, sizeof(persis_io), 0 )) > 8739 CTL_HA_STATUS_SUCCESS) { 8740 printf("CTL:Persis Out error returned from " 8741 "ctl_ha_msg_send %d\n", isc_retval); 8742 } 8743 } else /* sa_res_key != 0 */ { 8744 8745 /* 8746 * If we aren't registered currently then increment 8747 * the key count and set the registered flag. 8748 */ 8749 if (lun->pr_keys[residx] == 0) 8750 lun->pr_key_count++; 8751 lun->pr_keys[residx] = sa_res_key; 8752 8753 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8754 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8755 persis_io.pr.pr_info.action = CTL_PR_REG_KEY; 8756 persis_io.pr.pr_info.residx = residx; 8757 memcpy(persis_io.pr.pr_info.sa_res_key, 8758 param->serv_act_res_key, 8759 sizeof(param->serv_act_res_key)); 8760 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8761 &persis_io, sizeof(persis_io), 0)) > 8762 CTL_HA_STATUS_SUCCESS) { 8763 printf("CTL:Persis Out error returned from " 8764 "ctl_ha_msg_send %d\n", isc_retval); 8765 } 8766 } 8767 lun->PRGeneration++; 8768 mtx_unlock(&lun->lun_lock); 8769 8770 break; 8771 } 8772 case SPRO_RESERVE: 8773#if 0 8774 printf("Reserve executed type %d\n", type); 8775#endif 8776 mtx_lock(&lun->lun_lock); 8777 if (lun->flags & CTL_LUN_PR_RESERVED) { 8778 /* 8779 * if this isn't the reservation holder and it's 8780 * not a "all registrants" type or if the type is 8781 * different then we have a conflict 8782 */ 8783 if ((lun->pr_res_idx != residx 8784 && lun->pr_res_idx != CTL_PR_ALL_REGISTRANTS) 8785 || lun->res_type != type) { 8786 mtx_unlock(&lun->lun_lock); 8787 free(ctsio->kern_data_ptr, M_CTL); 8788 ctl_set_reservation_conflict(ctsio); 8789 ctl_done((union ctl_io *)ctsio); 8790 return (CTL_RETVAL_COMPLETE); 8791 } 8792 mtx_unlock(&lun->lun_lock); 8793 } else /* create a reservation */ { 8794 /* 8795 * If it's not an "all registrants" type record 8796 * reservation holder 8797 */ 8798 if (type != SPR_TYPE_WR_EX_AR 8799 && type != SPR_TYPE_EX_AC_AR) 8800 lun->pr_res_idx = residx; /* Res holder */ 8801 else 8802 lun->pr_res_idx = CTL_PR_ALL_REGISTRANTS; 8803 8804 lun->flags |= CTL_LUN_PR_RESERVED; 8805 lun->res_type = type; 8806 8807 mtx_unlock(&lun->lun_lock); 8808 8809 /* send msg to other side */ 8810 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8811 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8812 persis_io.pr.pr_info.action = CTL_PR_RESERVE; 8813 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8814 persis_io.pr.pr_info.res_type = type; 8815 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8816 &persis_io, sizeof(persis_io), 0)) > 8817 CTL_HA_STATUS_SUCCESS) { 8818 printf("CTL:Persis Out error returned from " 8819 "ctl_ha_msg_send %d\n", isc_retval); 8820 } 8821 } 8822 break; 8823 8824 case SPRO_RELEASE: 8825 mtx_lock(&lun->lun_lock); 8826 if ((lun->flags & CTL_LUN_PR_RESERVED) == 0) { 8827 /* No reservation exists return good status */ 8828 mtx_unlock(&lun->lun_lock); 8829 goto done; 8830 } 8831 /* 8832 * Is this nexus a reservation holder? 8833 */ 8834 if (lun->pr_res_idx != residx 8835 && lun->pr_res_idx != CTL_PR_ALL_REGISTRANTS) { 8836 /* 8837 * not a res holder return good status but 8838 * do nothing 8839 */ 8840 mtx_unlock(&lun->lun_lock); 8841 goto done; 8842 } 8843 8844 if (lun->res_type != type) { 8845 mtx_unlock(&lun->lun_lock); 8846 free(ctsio->kern_data_ptr, M_CTL); 8847 ctl_set_illegal_pr_release(ctsio); 8848 ctl_done((union ctl_io *)ctsio); 8849 return (CTL_RETVAL_COMPLETE); 8850 } 8851 8852 /* okay to release */ 8853 lun->flags &= ~CTL_LUN_PR_RESERVED; 8854 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8855 lun->res_type = 0; 8856 8857 /* 8858 * if this isn't an exclusive access 8859 * res generate UA for all other 8860 * registrants. 8861 */ 8862 if (type != SPR_TYPE_EX_AC 8863 && type != SPR_TYPE_WR_EX) { 8864 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 8865 if (i == residx || 8866 lun->pr_keys[i + persis_offset] == 0) 8867 continue; 8868 lun->pending_ua[i] |= CTL_UA_RES_RELEASE; 8869 } 8870 } 8871 mtx_unlock(&lun->lun_lock); 8872 /* Send msg to other side */ 8873 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8874 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8875 persis_io.pr.pr_info.action = CTL_PR_RELEASE; 8876 if ((isc_retval=ctl_ha_msg_send( CTL_HA_CHAN_CTL, &persis_io, 8877 sizeof(persis_io), 0)) > CTL_HA_STATUS_SUCCESS) { 8878 printf("CTL:Persis Out error returned from " 8879 "ctl_ha_msg_send %d\n", isc_retval); 8880 } 8881 break; 8882 8883 case SPRO_CLEAR: 8884 /* send msg to other side */ 8885 8886 mtx_lock(&lun->lun_lock); 8887 lun->flags &= ~CTL_LUN_PR_RESERVED; 8888 lun->res_type = 0; 8889 lun->pr_key_count = 0; 8890 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8891 8892 lun->pr_keys[residx] = 0; 8893 8894 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) 8895 if (lun->pr_keys[i] != 0) { 8896 if (!persis_offset && i < CTL_MAX_INITIATORS) 8897 lun->pending_ua[i] |= 8898 CTL_UA_RES_PREEMPT; 8899 else if (persis_offset && i >= persis_offset) 8900 lun->pending_ua[i-persis_offset] |= 8901 CTL_UA_RES_PREEMPT; 8902 8903 lun->pr_keys[i] = 0; 8904 } 8905 lun->PRGeneration++; 8906 mtx_unlock(&lun->lun_lock); 8907 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8908 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8909 persis_io.pr.pr_info.action = CTL_PR_CLEAR; 8910 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8911 sizeof(persis_io), 0)) > CTL_HA_STATUS_SUCCESS) { 8912 printf("CTL:Persis Out error returned from " 8913 "ctl_ha_msg_send %d\n", isc_retval); 8914 } 8915 break; 8916 8917 case SPRO_PREEMPT: 8918 case SPRO_PRE_ABO: { 8919 int nretval; 8920 8921 nretval = ctl_pro_preempt(softc, lun, res_key, sa_res_key, type, 8922 residx, ctsio, cdb, param); 8923 if (nretval != 0) 8924 return (CTL_RETVAL_COMPLETE); 8925 break; 8926 } 8927 default: 8928 panic("Invalid PR type %x", cdb->action); 8929 } 8930 8931done: 8932 free(ctsio->kern_data_ptr, M_CTL); 8933 ctl_set_success(ctsio); 8934 ctl_done((union ctl_io *)ctsio); 8935 8936 return (retval); 8937} 8938 8939/* 8940 * This routine is for handling a message from the other SC pertaining to 8941 * persistent reserve out. All the error checking will have been done 8942 * so only perorming the action need be done here to keep the two 8943 * in sync. 8944 */ 8945static void 8946ctl_hndl_per_res_out_on_other_sc(union ctl_ha_msg *msg) 8947{ 8948 struct ctl_lun *lun; 8949 struct ctl_softc *softc; 8950 int i; 8951 uint32_t targ_lun; 8952 8953 softc = control_softc; 8954 8955 targ_lun = msg->hdr.nexus.targ_mapped_lun; 8956 lun = softc->ctl_luns[targ_lun]; 8957 mtx_lock(&lun->lun_lock); 8958 switch(msg->pr.pr_info.action) { 8959 case CTL_PR_REG_KEY: 8960 if (lun->pr_keys[msg->pr.pr_info.residx] == 0) 8961 lun->pr_key_count++; 8962 lun->pr_keys[msg->pr.pr_info.residx] = 8963 scsi_8btou64(msg->pr.pr_info.sa_res_key); 8964 lun->PRGeneration++; 8965 break; 8966 8967 case CTL_PR_UNREG_KEY: 8968 lun->pr_keys[msg->pr.pr_info.residx] = 0; 8969 lun->pr_key_count--; 8970 8971 /* XXX Need to see if the reservation has been released */ 8972 /* if so do we need to generate UA? */ 8973 if (msg->pr.pr_info.residx == lun->pr_res_idx) { 8974 lun->flags &= ~CTL_LUN_PR_RESERVED; 8975 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8976 8977 if ((lun->res_type == SPR_TYPE_WR_EX_RO 8978 || lun->res_type == SPR_TYPE_EX_AC_RO) 8979 && lun->pr_key_count) { 8980 /* 8981 * If the reservation is a registrants 8982 * only type we need to generate a UA 8983 * for other registered inits. The 8984 * sense code should be RESERVATIONS 8985 * RELEASED 8986 */ 8987 8988 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 8989 if (lun->pr_keys[i+ 8990 persis_offset] == 0) 8991 continue; 8992 8993 lun->pending_ua[i] |= 8994 CTL_UA_RES_RELEASE; 8995 } 8996 } 8997 lun->res_type = 0; 8998 } else if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS) { 8999 if (lun->pr_key_count==0) { 9000 lun->flags &= ~CTL_LUN_PR_RESERVED; 9001 lun->res_type = 0; 9002 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 9003 } 9004 } 9005 lun->PRGeneration++; 9006 break; 9007 9008 case CTL_PR_RESERVE: 9009 lun->flags |= CTL_LUN_PR_RESERVED; 9010 lun->res_type = msg->pr.pr_info.res_type; 9011 lun->pr_res_idx = msg->pr.pr_info.residx; 9012 9013 break; 9014 9015 case CTL_PR_RELEASE: 9016 /* 9017 * if this isn't an exclusive access res generate UA for all 9018 * other registrants. 9019 */ 9020 if (lun->res_type != SPR_TYPE_EX_AC 9021 && lun->res_type != SPR_TYPE_WR_EX) { 9022 for (i = 0; i < CTL_MAX_INITIATORS; i++) 9023 if (lun->pr_keys[i+persis_offset] != 0) 9024 lun->pending_ua[i] |= 9025 CTL_UA_RES_RELEASE; 9026 } 9027 9028 lun->flags &= ~CTL_LUN_PR_RESERVED; 9029 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 9030 lun->res_type = 0; 9031 break; 9032 9033 case CTL_PR_PREEMPT: 9034 ctl_pro_preempt_other(lun, msg); 9035 break; 9036 case CTL_PR_CLEAR: 9037 lun->flags &= ~CTL_LUN_PR_RESERVED; 9038 lun->res_type = 0; 9039 lun->pr_key_count = 0; 9040 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 9041 9042 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) { 9043 if (lun->pr_keys[i] == 0) 9044 continue; 9045 if (!persis_offset 9046 && i < CTL_MAX_INITIATORS) 9047 lun->pending_ua[i] |= CTL_UA_RES_PREEMPT; 9048 else if (persis_offset 9049 && i >= persis_offset) 9050 lun->pending_ua[i-persis_offset] |= 9051 CTL_UA_RES_PREEMPT; 9052 lun->pr_keys[i] = 0; 9053 } 9054 lun->PRGeneration++; 9055 break; 9056 } 9057 9058 mtx_unlock(&lun->lun_lock); 9059} 9060 9061int 9062ctl_read_write(struct ctl_scsiio *ctsio) 9063{ 9064 struct ctl_lun *lun; 9065 struct ctl_lba_len_flags *lbalen; 9066 uint64_t lba; 9067 uint32_t num_blocks; 9068 int flags, retval; 9069 int isread; 9070 9071 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9072 9073 CTL_DEBUG_PRINT(("ctl_read_write: command: %#x\n", ctsio->cdb[0])); 9074 9075 flags = 0; 9076 retval = CTL_RETVAL_COMPLETE; 9077 9078 isread = ctsio->cdb[0] == READ_6 || ctsio->cdb[0] == READ_10 9079 || ctsio->cdb[0] == READ_12 || ctsio->cdb[0] == READ_16; 9080 switch (ctsio->cdb[0]) { 9081 case READ_6: 9082 case WRITE_6: { 9083 struct scsi_rw_6 *cdb; 9084 9085 cdb = (struct scsi_rw_6 *)ctsio->cdb; 9086 9087 lba = scsi_3btoul(cdb->addr); 9088 /* only 5 bits are valid in the most significant address byte */ 9089 lba &= 0x1fffff; 9090 num_blocks = cdb->length; 9091 /* 9092 * This is correct according to SBC-2. 9093 */ 9094 if (num_blocks == 0) 9095 num_blocks = 256; 9096 break; 9097 } 9098 case READ_10: 9099 case WRITE_10: { 9100 struct scsi_rw_10 *cdb; 9101 9102 cdb = (struct scsi_rw_10 *)ctsio->cdb; 9103 if (cdb->byte2 & SRW10_FUA) 9104 flags |= CTL_LLF_FUA; 9105 if (cdb->byte2 & SRW10_DPO) 9106 flags |= CTL_LLF_DPO; 9107 lba = scsi_4btoul(cdb->addr); 9108 num_blocks = scsi_2btoul(cdb->length); 9109 break; 9110 } 9111 case WRITE_VERIFY_10: { 9112 struct scsi_write_verify_10 *cdb; 9113 9114 cdb = (struct scsi_write_verify_10 *)ctsio->cdb; 9115 flags |= CTL_LLF_FUA; 9116 if (cdb->byte2 & SWV_DPO) 9117 flags |= CTL_LLF_DPO; 9118 lba = scsi_4btoul(cdb->addr); 9119 num_blocks = scsi_2btoul(cdb->length); 9120 break; 9121 } 9122 case READ_12: 9123 case WRITE_12: { 9124 struct scsi_rw_12 *cdb; 9125 9126 cdb = (struct scsi_rw_12 *)ctsio->cdb; 9127 if (cdb->byte2 & SRW12_FUA) 9128 flags |= CTL_LLF_FUA; 9129 if (cdb->byte2 & SRW12_DPO) 9130 flags |= CTL_LLF_DPO; 9131 lba = scsi_4btoul(cdb->addr); 9132 num_blocks = scsi_4btoul(cdb->length); 9133 break; 9134 } 9135 case WRITE_VERIFY_12: { 9136 struct scsi_write_verify_12 *cdb; 9137 9138 cdb = (struct scsi_write_verify_12 *)ctsio->cdb; 9139 flags |= CTL_LLF_FUA; 9140 if (cdb->byte2 & SWV_DPO) 9141 flags |= CTL_LLF_DPO; 9142 lba = scsi_4btoul(cdb->addr); 9143 num_blocks = scsi_4btoul(cdb->length); 9144 break; 9145 } 9146 case READ_16: 9147 case WRITE_16: { 9148 struct scsi_rw_16 *cdb; 9149 9150 cdb = (struct scsi_rw_16 *)ctsio->cdb; 9151 if (cdb->byte2 & SRW12_FUA) 9152 flags |= CTL_LLF_FUA; 9153 if (cdb->byte2 & SRW12_DPO) 9154 flags |= CTL_LLF_DPO; 9155 lba = scsi_8btou64(cdb->addr); 9156 num_blocks = scsi_4btoul(cdb->length); 9157 break; 9158 } 9159 case WRITE_ATOMIC_16: { 9160 struct scsi_rw_16 *cdb; 9161 9162 if (lun->be_lun->atomicblock == 0) { 9163 ctl_set_invalid_opcode(ctsio); 9164 ctl_done((union ctl_io *)ctsio); 9165 return (CTL_RETVAL_COMPLETE); 9166 } 9167 9168 cdb = (struct scsi_rw_16 *)ctsio->cdb; 9169 if (cdb->byte2 & SRW12_FUA) 9170 flags |= CTL_LLF_FUA; 9171 if (cdb->byte2 & SRW12_DPO) 9172 flags |= CTL_LLF_DPO; 9173 lba = scsi_8btou64(cdb->addr); 9174 num_blocks = scsi_4btoul(cdb->length); 9175 if (num_blocks > lun->be_lun->atomicblock) { 9176 ctl_set_invalid_field(ctsio, /*sks_valid*/ 1, 9177 /*command*/ 1, /*field*/ 12, /*bit_valid*/ 0, 9178 /*bit*/ 0); 9179 ctl_done((union ctl_io *)ctsio); 9180 return (CTL_RETVAL_COMPLETE); 9181 } 9182 break; 9183 } 9184 case WRITE_VERIFY_16: { 9185 struct scsi_write_verify_16 *cdb; 9186 9187 cdb = (struct scsi_write_verify_16 *)ctsio->cdb; 9188 flags |= CTL_LLF_FUA; 9189 if (cdb->byte2 & SWV_DPO) 9190 flags |= CTL_LLF_DPO; 9191 lba = scsi_8btou64(cdb->addr); 9192 num_blocks = scsi_4btoul(cdb->length); 9193 break; 9194 } 9195 default: 9196 /* 9197 * We got a command we don't support. This shouldn't 9198 * happen, commands should be filtered out above us. 9199 */ 9200 ctl_set_invalid_opcode(ctsio); 9201 ctl_done((union ctl_io *)ctsio); 9202 9203 return (CTL_RETVAL_COMPLETE); 9204 break; /* NOTREACHED */ 9205 } 9206 9207 /* 9208 * The first check is to make sure we're in bounds, the second 9209 * check is to catch wrap-around problems. If the lba + num blocks 9210 * is less than the lba, then we've wrapped around and the block 9211 * range is invalid anyway. 9212 */ 9213 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 9214 || ((lba + num_blocks) < lba)) { 9215 ctl_set_lba_out_of_range(ctsio); 9216 ctl_done((union ctl_io *)ctsio); 9217 return (CTL_RETVAL_COMPLETE); 9218 } 9219 9220 /* 9221 * According to SBC-3, a transfer length of 0 is not an error. 9222 * Note that this cannot happen with WRITE(6) or READ(6), since 0 9223 * translates to 256 blocks for those commands. 9224 */ 9225 if (num_blocks == 0) { 9226 ctl_set_success(ctsio); 9227 ctl_done((union ctl_io *)ctsio); 9228 return (CTL_RETVAL_COMPLETE); 9229 } 9230 9231 /* Set FUA and/or DPO if caches are disabled. */ 9232 if (isread) { 9233 if ((lun->mode_pages.caching_page[CTL_PAGE_CURRENT].flags1 & 9234 SCP_RCD) != 0) 9235 flags |= CTL_LLF_FUA | CTL_LLF_DPO; 9236 } else { 9237 if ((lun->mode_pages.caching_page[CTL_PAGE_CURRENT].flags1 & 9238 SCP_WCE) == 0) 9239 flags |= CTL_LLF_FUA; 9240 } 9241 9242 lbalen = (struct ctl_lba_len_flags *) 9243 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 9244 lbalen->lba = lba; 9245 lbalen->len = num_blocks; 9246 lbalen->flags = (isread ? CTL_LLF_READ : CTL_LLF_WRITE) | flags; 9247 9248 ctsio->kern_total_len = num_blocks * lun->be_lun->blocksize; 9249 ctsio->kern_rel_offset = 0; 9250 9251 CTL_DEBUG_PRINT(("ctl_read_write: calling data_submit()\n")); 9252 9253 retval = lun->backend->data_submit((union ctl_io *)ctsio); 9254 9255 return (retval); 9256} 9257 9258static int 9259ctl_cnw_cont(union ctl_io *io) 9260{ 9261 struct ctl_scsiio *ctsio; 9262 struct ctl_lun *lun; 9263 struct ctl_lba_len_flags *lbalen; 9264 int retval; 9265 9266 ctsio = &io->scsiio; 9267 ctsio->io_hdr.status = CTL_STATUS_NONE; 9268 ctsio->io_hdr.flags &= ~CTL_FLAG_IO_CONT; 9269 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9270 lbalen = (struct ctl_lba_len_flags *) 9271 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 9272 lbalen->flags &= ~CTL_LLF_COMPARE; 9273 lbalen->flags |= CTL_LLF_WRITE; 9274 9275 CTL_DEBUG_PRINT(("ctl_cnw_cont: calling data_submit()\n")); 9276 retval = lun->backend->data_submit((union ctl_io *)ctsio); 9277 return (retval); 9278} 9279 9280int 9281ctl_cnw(struct ctl_scsiio *ctsio) 9282{ 9283 struct ctl_lun *lun; 9284 struct ctl_lba_len_flags *lbalen; 9285 uint64_t lba; 9286 uint32_t num_blocks; 9287 int flags, retval; 9288 9289 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9290 9291 CTL_DEBUG_PRINT(("ctl_cnw: command: %#x\n", ctsio->cdb[0])); 9292 9293 flags = 0; 9294 retval = CTL_RETVAL_COMPLETE; 9295 9296 switch (ctsio->cdb[0]) { 9297 case COMPARE_AND_WRITE: { 9298 struct scsi_compare_and_write *cdb; 9299 9300 cdb = (struct scsi_compare_and_write *)ctsio->cdb; 9301 if (cdb->byte2 & SRW10_FUA) 9302 flags |= CTL_LLF_FUA; 9303 if (cdb->byte2 & SRW10_DPO) 9304 flags |= CTL_LLF_DPO; 9305 lba = scsi_8btou64(cdb->addr); 9306 num_blocks = cdb->length; 9307 break; 9308 } 9309 default: 9310 /* 9311 * We got a command we don't support. This shouldn't 9312 * happen, commands should be filtered out above us. 9313 */ 9314 ctl_set_invalid_opcode(ctsio); 9315 ctl_done((union ctl_io *)ctsio); 9316 9317 return (CTL_RETVAL_COMPLETE); 9318 break; /* NOTREACHED */ 9319 } 9320 9321 /* 9322 * The first check is to make sure we're in bounds, the second 9323 * check is to catch wrap-around problems. If the lba + num blocks 9324 * is less than the lba, then we've wrapped around and the block 9325 * range is invalid anyway. 9326 */ 9327 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 9328 || ((lba + num_blocks) < lba)) { 9329 ctl_set_lba_out_of_range(ctsio); 9330 ctl_done((union ctl_io *)ctsio); 9331 return (CTL_RETVAL_COMPLETE); 9332 } 9333 9334 /* 9335 * According to SBC-3, a transfer length of 0 is not an error. 9336 */ 9337 if (num_blocks == 0) { 9338 ctl_set_success(ctsio); 9339 ctl_done((union ctl_io *)ctsio); 9340 return (CTL_RETVAL_COMPLETE); 9341 } 9342 9343 /* Set FUA if write cache is disabled. */ 9344 if ((lun->mode_pages.caching_page[CTL_PAGE_CURRENT].flags1 & 9345 SCP_WCE) == 0) 9346 flags |= CTL_LLF_FUA; 9347 9348 ctsio->kern_total_len = 2 * num_blocks * lun->be_lun->blocksize; 9349 ctsio->kern_rel_offset = 0; 9350 9351 /* 9352 * Set the IO_CONT flag, so that if this I/O gets passed to 9353 * ctl_data_submit_done(), it'll get passed back to 9354 * ctl_ctl_cnw_cont() for further processing. 9355 */ 9356 ctsio->io_hdr.flags |= CTL_FLAG_IO_CONT; 9357 ctsio->io_cont = ctl_cnw_cont; 9358 9359 lbalen = (struct ctl_lba_len_flags *) 9360 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 9361 lbalen->lba = lba; 9362 lbalen->len = num_blocks; 9363 lbalen->flags = CTL_LLF_COMPARE | flags; 9364 9365 CTL_DEBUG_PRINT(("ctl_cnw: calling data_submit()\n")); 9366 retval = lun->backend->data_submit((union ctl_io *)ctsio); 9367 return (retval); 9368} 9369 9370int 9371ctl_verify(struct ctl_scsiio *ctsio) 9372{ 9373 struct ctl_lun *lun; 9374 struct ctl_lba_len_flags *lbalen; 9375 uint64_t lba; 9376 uint32_t num_blocks; 9377 int bytchk, flags; 9378 int retval; 9379 9380 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9381 9382 CTL_DEBUG_PRINT(("ctl_verify: command: %#x\n", ctsio->cdb[0])); 9383 9384 bytchk = 0; 9385 flags = CTL_LLF_FUA; 9386 retval = CTL_RETVAL_COMPLETE; 9387 9388 switch (ctsio->cdb[0]) { 9389 case VERIFY_10: { 9390 struct scsi_verify_10 *cdb; 9391 9392 cdb = (struct scsi_verify_10 *)ctsio->cdb; 9393 if (cdb->byte2 & SVFY_BYTCHK) 9394 bytchk = 1; 9395 if (cdb->byte2 & SVFY_DPO) 9396 flags |= CTL_LLF_DPO; 9397 lba = scsi_4btoul(cdb->addr); 9398 num_blocks = scsi_2btoul(cdb->length); 9399 break; 9400 } 9401 case VERIFY_12: { 9402 struct scsi_verify_12 *cdb; 9403 9404 cdb = (struct scsi_verify_12 *)ctsio->cdb; 9405 if (cdb->byte2 & SVFY_BYTCHK) 9406 bytchk = 1; 9407 if (cdb->byte2 & SVFY_DPO) 9408 flags |= CTL_LLF_DPO; 9409 lba = scsi_4btoul(cdb->addr); 9410 num_blocks = scsi_4btoul(cdb->length); 9411 break; 9412 } 9413 case VERIFY_16: { 9414 struct scsi_rw_16 *cdb; 9415 9416 cdb = (struct scsi_rw_16 *)ctsio->cdb; 9417 if (cdb->byte2 & SVFY_BYTCHK) 9418 bytchk = 1; 9419 if (cdb->byte2 & SVFY_DPO) 9420 flags |= CTL_LLF_DPO; 9421 lba = scsi_8btou64(cdb->addr); 9422 num_blocks = scsi_4btoul(cdb->length); 9423 break; 9424 } 9425 default: 9426 /* 9427 * We got a command we don't support. This shouldn't 9428 * happen, commands should be filtered out above us. 9429 */ 9430 ctl_set_invalid_opcode(ctsio); 9431 ctl_done((union ctl_io *)ctsio); 9432 return (CTL_RETVAL_COMPLETE); 9433 } 9434 9435 /* 9436 * The first check is to make sure we're in bounds, the second 9437 * check is to catch wrap-around problems. If the lba + num blocks 9438 * is less than the lba, then we've wrapped around and the block 9439 * range is invalid anyway. 9440 */ 9441 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 9442 || ((lba + num_blocks) < lba)) { 9443 ctl_set_lba_out_of_range(ctsio); 9444 ctl_done((union ctl_io *)ctsio); 9445 return (CTL_RETVAL_COMPLETE); 9446 } 9447 9448 /* 9449 * According to SBC-3, a transfer length of 0 is not an error. 9450 */ 9451 if (num_blocks == 0) { 9452 ctl_set_success(ctsio); 9453 ctl_done((union ctl_io *)ctsio); 9454 return (CTL_RETVAL_COMPLETE); 9455 } 9456 9457 lbalen = (struct ctl_lba_len_flags *) 9458 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 9459 lbalen->lba = lba; 9460 lbalen->len = num_blocks; 9461 if (bytchk) { 9462 lbalen->flags = CTL_LLF_COMPARE | flags; 9463 ctsio->kern_total_len = num_blocks * lun->be_lun->blocksize; 9464 } else { 9465 lbalen->flags = CTL_LLF_VERIFY | flags; 9466 ctsio->kern_total_len = 0; 9467 } 9468 ctsio->kern_rel_offset = 0; 9469 9470 CTL_DEBUG_PRINT(("ctl_verify: calling data_submit()\n")); 9471 retval = lun->backend->data_submit((union ctl_io *)ctsio); 9472 return (retval); 9473} 9474 9475int 9476ctl_report_luns(struct ctl_scsiio *ctsio) 9477{ 9478 struct scsi_report_luns *cdb; 9479 struct scsi_report_luns_data *lun_data; 9480 struct ctl_lun *lun, *request_lun; 9481 int num_luns, retval; 9482 uint32_t alloc_len, lun_datalen; 9483 int num_filled, well_known; 9484 uint32_t initidx, targ_lun_id, lun_id; 9485 9486 retval = CTL_RETVAL_COMPLETE; 9487 well_known = 0; 9488 9489 cdb = (struct scsi_report_luns *)ctsio->cdb; 9490 9491 CTL_DEBUG_PRINT(("ctl_report_luns\n")); 9492 9493 mtx_lock(&control_softc->ctl_lock); 9494 num_luns = control_softc->num_luns; 9495 mtx_unlock(&control_softc->ctl_lock); 9496 9497 switch (cdb->select_report) { 9498 case RPL_REPORT_DEFAULT: 9499 case RPL_REPORT_ALL: 9500 break; 9501 case RPL_REPORT_WELLKNOWN: 9502 well_known = 1; 9503 num_luns = 0; 9504 break; 9505 default: 9506 ctl_set_invalid_field(ctsio, 9507 /*sks_valid*/ 1, 9508 /*command*/ 1, 9509 /*field*/ 2, 9510 /*bit_valid*/ 0, 9511 /*bit*/ 0); 9512 ctl_done((union ctl_io *)ctsio); 9513 return (retval); 9514 break; /* NOTREACHED */ 9515 } 9516 9517 alloc_len = scsi_4btoul(cdb->length); 9518 /* 9519 * The initiator has to allocate at least 16 bytes for this request, 9520 * so he can at least get the header and the first LUN. Otherwise 9521 * we reject the request (per SPC-3 rev 14, section 6.21). 9522 */ 9523 if (alloc_len < (sizeof(struct scsi_report_luns_data) + 9524 sizeof(struct scsi_report_luns_lundata))) { 9525 ctl_set_invalid_field(ctsio, 9526 /*sks_valid*/ 1, 9527 /*command*/ 1, 9528 /*field*/ 6, 9529 /*bit_valid*/ 0, 9530 /*bit*/ 0); 9531 ctl_done((union ctl_io *)ctsio); 9532 return (retval); 9533 } 9534 9535 request_lun = (struct ctl_lun *) 9536 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9537 9538 lun_datalen = sizeof(*lun_data) + 9539 (num_luns * sizeof(struct scsi_report_luns_lundata)); 9540 9541 ctsio->kern_data_ptr = malloc(lun_datalen, M_CTL, M_WAITOK | M_ZERO); 9542 lun_data = (struct scsi_report_luns_data *)ctsio->kern_data_ptr; 9543 ctsio->kern_sg_entries = 0; 9544 9545 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 9546 9547 mtx_lock(&control_softc->ctl_lock); 9548 for (targ_lun_id = 0, num_filled = 0; targ_lun_id < CTL_MAX_LUNS && num_filled < num_luns; targ_lun_id++) { 9549 lun_id = ctl_map_lun(ctsio->io_hdr.nexus.targ_port, targ_lun_id); 9550 if (lun_id >= CTL_MAX_LUNS) 9551 continue; 9552 lun = control_softc->ctl_luns[lun_id]; 9553 if (lun == NULL) 9554 continue; 9555 9556 if (targ_lun_id <= 0xff) { 9557 /* 9558 * Peripheral addressing method, bus number 0. 9559 */ 9560 lun_data->luns[num_filled].lundata[0] = 9561 RPL_LUNDATA_ATYP_PERIPH; 9562 lun_data->luns[num_filled].lundata[1] = targ_lun_id; 9563 num_filled++; 9564 } else if (targ_lun_id <= 0x3fff) { 9565 /* 9566 * Flat addressing method. 9567 */ 9568 lun_data->luns[num_filled].lundata[0] = 9569 RPL_LUNDATA_ATYP_FLAT | (targ_lun_id >> 8); 9570 lun_data->luns[num_filled].lundata[1] = 9571 (targ_lun_id & 0xff); 9572 num_filled++; 9573 } else if (targ_lun_id <= 0xffffff) { 9574 /* 9575 * Extended flat addressing method. 9576 */ 9577 lun_data->luns[num_filled].lundata[0] = 9578 RPL_LUNDATA_ATYP_EXTLUN | 0x12; 9579 scsi_ulto3b(targ_lun_id, 9580 &lun_data->luns[num_filled].lundata[1]); 9581 num_filled++; 9582 } else { 9583 printf("ctl_report_luns: bogus LUN number %jd, " 9584 "skipping\n", (intmax_t)targ_lun_id); 9585 } 9586 /* 9587 * According to SPC-3, rev 14 section 6.21: 9588 * 9589 * "The execution of a REPORT LUNS command to any valid and 9590 * installed logical unit shall clear the REPORTED LUNS DATA 9591 * HAS CHANGED unit attention condition for all logical 9592 * units of that target with respect to the requesting 9593 * initiator. A valid and installed logical unit is one 9594 * having a PERIPHERAL QUALIFIER of 000b in the standard 9595 * INQUIRY data (see 6.4.2)." 9596 * 9597 * If request_lun is NULL, the LUN this report luns command 9598 * was issued to is either disabled or doesn't exist. In that 9599 * case, we shouldn't clear any pending lun change unit 9600 * attention. 9601 */ 9602 if (request_lun != NULL) { 9603 mtx_lock(&lun->lun_lock); 9604 lun->pending_ua[initidx] &= ~CTL_UA_LUN_CHANGE; 9605 mtx_unlock(&lun->lun_lock); 9606 } 9607 } 9608 mtx_unlock(&control_softc->ctl_lock); 9609 9610 /* 9611 * It's quite possible that we've returned fewer LUNs than we allocated 9612 * space for. Trim it. 9613 */ 9614 lun_datalen = sizeof(*lun_data) + 9615 (num_filled * sizeof(struct scsi_report_luns_lundata)); 9616 9617 if (lun_datalen < alloc_len) { 9618 ctsio->residual = alloc_len - lun_datalen; 9619 ctsio->kern_data_len = lun_datalen; 9620 ctsio->kern_total_len = lun_datalen; 9621 } else { 9622 ctsio->residual = 0; 9623 ctsio->kern_data_len = alloc_len; 9624 ctsio->kern_total_len = alloc_len; 9625 } 9626 ctsio->kern_data_resid = 0; 9627 ctsio->kern_rel_offset = 0; 9628 ctsio->kern_sg_entries = 0; 9629 9630 /* 9631 * We set this to the actual data length, regardless of how much 9632 * space we actually have to return results. If the user looks at 9633 * this value, he'll know whether or not he allocated enough space 9634 * and reissue the command if necessary. We don't support well 9635 * known logical units, so if the user asks for that, return none. 9636 */ 9637 scsi_ulto4b(lun_datalen - 8, lun_data->length); 9638 9639 /* 9640 * We can only return SCSI_STATUS_CHECK_COND when we can't satisfy 9641 * this request. 9642 */ 9643 ctsio->scsi_status = SCSI_STATUS_OK; 9644 9645 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9646 ctsio->be_move_done = ctl_config_move_done; 9647 ctl_datamove((union ctl_io *)ctsio); 9648 9649 return (retval); 9650} 9651 9652int 9653ctl_request_sense(struct ctl_scsiio *ctsio) 9654{ 9655 struct scsi_request_sense *cdb; 9656 struct scsi_sense_data *sense_ptr; 9657 struct ctl_lun *lun; 9658 uint32_t initidx; 9659 int have_error; 9660 scsi_sense_data_type sense_format; 9661 9662 cdb = (struct scsi_request_sense *)ctsio->cdb; 9663 9664 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9665 9666 CTL_DEBUG_PRINT(("ctl_request_sense\n")); 9667 9668 /* 9669 * Determine which sense format the user wants. 9670 */ 9671 if (cdb->byte2 & SRS_DESC) 9672 sense_format = SSD_TYPE_DESC; 9673 else 9674 sense_format = SSD_TYPE_FIXED; 9675 9676 ctsio->kern_data_ptr = malloc(sizeof(*sense_ptr), M_CTL, M_WAITOK); 9677 sense_ptr = (struct scsi_sense_data *)ctsio->kern_data_ptr; 9678 ctsio->kern_sg_entries = 0; 9679 9680 /* 9681 * struct scsi_sense_data, which is currently set to 256 bytes, is 9682 * larger than the largest allowed value for the length field in the 9683 * REQUEST SENSE CDB, which is 252 bytes as of SPC-4. 9684 */ 9685 ctsio->residual = 0; 9686 ctsio->kern_data_len = cdb->length; 9687 ctsio->kern_total_len = cdb->length; 9688 9689 ctsio->kern_data_resid = 0; 9690 ctsio->kern_rel_offset = 0; 9691 ctsio->kern_sg_entries = 0; 9692 9693 /* 9694 * If we don't have a LUN, we don't have any pending sense. 9695 */ 9696 if (lun == NULL) 9697 goto no_sense; 9698 9699 have_error = 0; 9700 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 9701 /* 9702 * Check for pending sense, and then for pending unit attentions. 9703 * Pending sense gets returned first, then pending unit attentions. 9704 */ 9705 mtx_lock(&lun->lun_lock); 9706#ifdef CTL_WITH_CA 9707 if (ctl_is_set(lun->have_ca, initidx)) { 9708 scsi_sense_data_type stored_format; 9709 9710 /* 9711 * Check to see which sense format was used for the stored 9712 * sense data. 9713 */ 9714 stored_format = scsi_sense_type(&lun->pending_sense[initidx]); 9715 9716 /* 9717 * If the user requested a different sense format than the 9718 * one we stored, then we need to convert it to the other 9719 * format. If we're going from descriptor to fixed format 9720 * sense data, we may lose things in translation, depending 9721 * on what options were used. 9722 * 9723 * If the stored format is SSD_TYPE_NONE (i.e. invalid), 9724 * for some reason we'll just copy it out as-is. 9725 */ 9726 if ((stored_format == SSD_TYPE_FIXED) 9727 && (sense_format == SSD_TYPE_DESC)) 9728 ctl_sense_to_desc((struct scsi_sense_data_fixed *) 9729 &lun->pending_sense[initidx], 9730 (struct scsi_sense_data_desc *)sense_ptr); 9731 else if ((stored_format == SSD_TYPE_DESC) 9732 && (sense_format == SSD_TYPE_FIXED)) 9733 ctl_sense_to_fixed((struct scsi_sense_data_desc *) 9734 &lun->pending_sense[initidx], 9735 (struct scsi_sense_data_fixed *)sense_ptr); 9736 else 9737 memcpy(sense_ptr, &lun->pending_sense[initidx], 9738 ctl_min(sizeof(*sense_ptr), 9739 sizeof(lun->pending_sense[initidx]))); 9740 9741 ctl_clear_mask(lun->have_ca, initidx); 9742 have_error = 1; 9743 } else 9744#endif 9745 if (lun->pending_ua[initidx] != CTL_UA_NONE) { 9746 ctl_ua_type ua_type; 9747 9748 ua_type = ctl_build_ua(&lun->pending_ua[initidx], 9749 sense_ptr, sense_format); 9750 if (ua_type != CTL_UA_NONE) 9751 have_error = 1; 9752 } 9753 mtx_unlock(&lun->lun_lock); 9754 9755 /* 9756 * We already have a pending error, return it. 9757 */ 9758 if (have_error != 0) { 9759 /* 9760 * We report the SCSI status as OK, since the status of the 9761 * request sense command itself is OK. 9762 */ 9763 ctsio->scsi_status = SCSI_STATUS_OK; 9764 9765 /* 9766 * We report 0 for the sense length, because we aren't doing 9767 * autosense in this case. We're reporting sense as 9768 * parameter data. 9769 */ 9770 ctsio->sense_len = 0; 9771 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9772 ctsio->be_move_done = ctl_config_move_done; 9773 ctl_datamove((union ctl_io *)ctsio); 9774 9775 return (CTL_RETVAL_COMPLETE); 9776 } 9777 9778no_sense: 9779 9780 /* 9781 * No sense information to report, so we report that everything is 9782 * okay. 9783 */ 9784 ctl_set_sense_data(sense_ptr, 9785 lun, 9786 sense_format, 9787 /*current_error*/ 1, 9788 /*sense_key*/ SSD_KEY_NO_SENSE, 9789 /*asc*/ 0x00, 9790 /*ascq*/ 0x00, 9791 SSD_ELEM_NONE); 9792 9793 ctsio->scsi_status = SCSI_STATUS_OK; 9794 9795 /* 9796 * We report 0 for the sense length, because we aren't doing 9797 * autosense in this case. We're reporting sense as parameter data. 9798 */ 9799 ctsio->sense_len = 0; 9800 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9801 ctsio->be_move_done = ctl_config_move_done; 9802 ctl_datamove((union ctl_io *)ctsio); 9803 9804 return (CTL_RETVAL_COMPLETE); 9805} 9806 9807int 9808ctl_tur(struct ctl_scsiio *ctsio) 9809{ 9810 struct ctl_lun *lun; 9811 9812 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9813 9814 CTL_DEBUG_PRINT(("ctl_tur\n")); 9815 9816 if (lun == NULL) 9817 return (EINVAL); 9818 9819 ctsio->scsi_status = SCSI_STATUS_OK; 9820 ctsio->io_hdr.status = CTL_SUCCESS; 9821 9822 ctl_done((union ctl_io *)ctsio); 9823 9824 return (CTL_RETVAL_COMPLETE); 9825} 9826 9827#ifdef notyet 9828static int 9829ctl_cmddt_inquiry(struct ctl_scsiio *ctsio) 9830{ 9831 9832} 9833#endif 9834 9835static int 9836ctl_inquiry_evpd_supported(struct ctl_scsiio *ctsio, int alloc_len) 9837{ 9838 struct scsi_vpd_supported_pages *pages; 9839 int sup_page_size; 9840 struct ctl_lun *lun; 9841 9842 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9843 9844 sup_page_size = sizeof(struct scsi_vpd_supported_pages) * 9845 SCSI_EVPD_NUM_SUPPORTED_PAGES; 9846 ctsio->kern_data_ptr = malloc(sup_page_size, M_CTL, M_WAITOK | M_ZERO); 9847 pages = (struct scsi_vpd_supported_pages *)ctsio->kern_data_ptr; 9848 ctsio->kern_sg_entries = 0; 9849 9850 if (sup_page_size < alloc_len) { 9851 ctsio->residual = alloc_len - sup_page_size; 9852 ctsio->kern_data_len = sup_page_size; 9853 ctsio->kern_total_len = sup_page_size; 9854 } else { 9855 ctsio->residual = 0; 9856 ctsio->kern_data_len = alloc_len; 9857 ctsio->kern_total_len = alloc_len; 9858 } 9859 ctsio->kern_data_resid = 0; 9860 ctsio->kern_rel_offset = 0; 9861 ctsio->kern_sg_entries = 0; 9862 9863 /* 9864 * The control device is always connected. The disk device, on the 9865 * other hand, may not be online all the time. Need to change this 9866 * to figure out whether the disk device is actually online or not. 9867 */ 9868 if (lun != NULL) 9869 pages->device = (SID_QUAL_LU_CONNECTED << 5) | 9870 lun->be_lun->lun_type; 9871 else 9872 pages->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9873 9874 pages->length = SCSI_EVPD_NUM_SUPPORTED_PAGES; 9875 /* Supported VPD pages */ 9876 pages->page_list[0] = SVPD_SUPPORTED_PAGES; 9877 /* Serial Number */ 9878 pages->page_list[1] = SVPD_UNIT_SERIAL_NUMBER; 9879 /* Device Identification */ 9880 pages->page_list[2] = SVPD_DEVICE_ID; 9881 /* Extended INQUIRY Data */ 9882 pages->page_list[3] = SVPD_EXTENDED_INQUIRY_DATA; 9883 /* Mode Page Policy */ 9884 pages->page_list[4] = SVPD_MODE_PAGE_POLICY; 9885 /* SCSI Ports */ 9886 pages->page_list[5] = SVPD_SCSI_PORTS; 9887 /* Third-party Copy */ 9888 pages->page_list[6] = SVPD_SCSI_TPC; 9889 /* Block limits */ 9890 pages->page_list[7] = SVPD_BLOCK_LIMITS; 9891 /* Block Device Characteristics */ 9892 pages->page_list[8] = SVPD_BDC; 9893 /* Logical Block Provisioning */ 9894 pages->page_list[9] = SVPD_LBP; 9895 9896 ctsio->scsi_status = SCSI_STATUS_OK; 9897 9898 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9899 ctsio->be_move_done = ctl_config_move_done; 9900 ctl_datamove((union ctl_io *)ctsio); 9901 9902 return (CTL_RETVAL_COMPLETE); 9903} 9904 9905static int 9906ctl_inquiry_evpd_serial(struct ctl_scsiio *ctsio, int alloc_len) 9907{ 9908 struct scsi_vpd_unit_serial_number *sn_ptr; 9909 struct ctl_lun *lun; 9910 int data_len; 9911 9912 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9913 9914 data_len = 4 + CTL_SN_LEN; 9915 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9916 sn_ptr = (struct scsi_vpd_unit_serial_number *)ctsio->kern_data_ptr; 9917 if (data_len < alloc_len) { 9918 ctsio->residual = alloc_len - data_len; 9919 ctsio->kern_data_len = data_len; 9920 ctsio->kern_total_len = data_len; 9921 } else { 9922 ctsio->residual = 0; 9923 ctsio->kern_data_len = alloc_len; 9924 ctsio->kern_total_len = alloc_len; 9925 } 9926 ctsio->kern_data_resid = 0; 9927 ctsio->kern_rel_offset = 0; 9928 ctsio->kern_sg_entries = 0; 9929 9930 /* 9931 * The control device is always connected. The disk device, on the 9932 * other hand, may not be online all the time. Need to change this 9933 * to figure out whether the disk device is actually online or not. 9934 */ 9935 if (lun != NULL) 9936 sn_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9937 lun->be_lun->lun_type; 9938 else 9939 sn_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9940 9941 sn_ptr->page_code = SVPD_UNIT_SERIAL_NUMBER; 9942 sn_ptr->length = CTL_SN_LEN; 9943 /* 9944 * If we don't have a LUN, we just leave the serial number as 9945 * all spaces. 9946 */ 9947 if (lun != NULL) { 9948 strncpy((char *)sn_ptr->serial_num, 9949 (char *)lun->be_lun->serial_num, CTL_SN_LEN); 9950 } else 9951 memset(sn_ptr->serial_num, 0x20, CTL_SN_LEN); 9952 ctsio->scsi_status = SCSI_STATUS_OK; 9953 9954 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9955 ctsio->be_move_done = ctl_config_move_done; 9956 ctl_datamove((union ctl_io *)ctsio); 9957 9958 return (CTL_RETVAL_COMPLETE); 9959} 9960 9961 9962static int 9963ctl_inquiry_evpd_eid(struct ctl_scsiio *ctsio, int alloc_len) 9964{ 9965 struct scsi_vpd_extended_inquiry_data *eid_ptr; 9966 struct ctl_lun *lun; 9967 int data_len; 9968 9969 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9970 9971 data_len = sizeof(struct scsi_vpd_extended_inquiry_data); 9972 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9973 eid_ptr = (struct scsi_vpd_extended_inquiry_data *)ctsio->kern_data_ptr; 9974 ctsio->kern_sg_entries = 0; 9975 9976 if (data_len < alloc_len) { 9977 ctsio->residual = alloc_len - data_len; 9978 ctsio->kern_data_len = data_len; 9979 ctsio->kern_total_len = data_len; 9980 } else { 9981 ctsio->residual = 0; 9982 ctsio->kern_data_len = alloc_len; 9983 ctsio->kern_total_len = alloc_len; 9984 } 9985 ctsio->kern_data_resid = 0; 9986 ctsio->kern_rel_offset = 0; 9987 ctsio->kern_sg_entries = 0; 9988 9989 /* 9990 * The control device is always connected. The disk device, on the 9991 * other hand, may not be online all the time. 9992 */ 9993 if (lun != NULL) 9994 eid_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9995 lun->be_lun->lun_type; 9996 else 9997 eid_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9998 eid_ptr->page_code = SVPD_EXTENDED_INQUIRY_DATA; 9999 eid_ptr->page_length = data_len - 4; 10000 eid_ptr->flags2 = SVPD_EID_HEADSUP | SVPD_EID_ORDSUP | SVPD_EID_SIMPSUP; 10001 eid_ptr->flags3 = SVPD_EID_V_SUP; 10002 10003 ctsio->scsi_status = SCSI_STATUS_OK; 10004 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10005 ctsio->be_move_done = ctl_config_move_done; 10006 ctl_datamove((union ctl_io *)ctsio); 10007 10008 return (CTL_RETVAL_COMPLETE); 10009} 10010 10011static int 10012ctl_inquiry_evpd_mpp(struct ctl_scsiio *ctsio, int alloc_len) 10013{ 10014 struct scsi_vpd_mode_page_policy *mpp_ptr; 10015 struct ctl_lun *lun; 10016 int data_len; 10017 10018 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10019 10020 data_len = sizeof(struct scsi_vpd_mode_page_policy) + 10021 sizeof(struct scsi_vpd_mode_page_policy_descr); 10022 10023 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 10024 mpp_ptr = (struct scsi_vpd_mode_page_policy *)ctsio->kern_data_ptr; 10025 ctsio->kern_sg_entries = 0; 10026 10027 if (data_len < alloc_len) { 10028 ctsio->residual = alloc_len - data_len; 10029 ctsio->kern_data_len = data_len; 10030 ctsio->kern_total_len = data_len; 10031 } else { 10032 ctsio->residual = 0; 10033 ctsio->kern_data_len = alloc_len; 10034 ctsio->kern_total_len = alloc_len; 10035 } 10036 ctsio->kern_data_resid = 0; 10037 ctsio->kern_rel_offset = 0; 10038 ctsio->kern_sg_entries = 0; 10039 10040 /* 10041 * The control device is always connected. The disk device, on the 10042 * other hand, may not be online all the time. 10043 */ 10044 if (lun != NULL) 10045 mpp_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10046 lun->be_lun->lun_type; 10047 else 10048 mpp_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10049 mpp_ptr->page_code = SVPD_MODE_PAGE_POLICY; 10050 scsi_ulto2b(data_len - 4, mpp_ptr->page_length); 10051 mpp_ptr->descr[0].page_code = 0x3f; 10052 mpp_ptr->descr[0].subpage_code = 0xff; 10053 mpp_ptr->descr[0].policy = SVPD_MPP_SHARED; 10054 10055 ctsio->scsi_status = SCSI_STATUS_OK; 10056 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10057 ctsio->be_move_done = ctl_config_move_done; 10058 ctl_datamove((union ctl_io *)ctsio); 10059 10060 return (CTL_RETVAL_COMPLETE); 10061} 10062 10063static int 10064ctl_inquiry_evpd_devid(struct ctl_scsiio *ctsio, int alloc_len) 10065{ 10066 struct scsi_vpd_device_id *devid_ptr; 10067 struct scsi_vpd_id_descriptor *desc; 10068 struct ctl_softc *ctl_softc; 10069 struct ctl_lun *lun; 10070 struct ctl_port *port; 10071 int data_len; 10072 uint8_t proto; 10073 10074 ctl_softc = control_softc; 10075 10076 port = ctl_softc->ctl_ports[ctl_port_idx(ctsio->io_hdr.nexus.targ_port)]; 10077 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10078 10079 data_len = sizeof(struct scsi_vpd_device_id) + 10080 sizeof(struct scsi_vpd_id_descriptor) + 10081 sizeof(struct scsi_vpd_id_rel_trgt_port_id) + 10082 sizeof(struct scsi_vpd_id_descriptor) + 10083 sizeof(struct scsi_vpd_id_trgt_port_grp_id); 10084 if (lun && lun->lun_devid) 10085 data_len += lun->lun_devid->len; 10086 if (port->port_devid) 10087 data_len += port->port_devid->len; 10088 if (port->target_devid) 10089 data_len += port->target_devid->len; 10090 10091 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 10092 devid_ptr = (struct scsi_vpd_device_id *)ctsio->kern_data_ptr; 10093 ctsio->kern_sg_entries = 0; 10094 10095 if (data_len < alloc_len) { 10096 ctsio->residual = alloc_len - data_len; 10097 ctsio->kern_data_len = data_len; 10098 ctsio->kern_total_len = data_len; 10099 } else { 10100 ctsio->residual = 0; 10101 ctsio->kern_data_len = alloc_len; 10102 ctsio->kern_total_len = alloc_len; 10103 } 10104 ctsio->kern_data_resid = 0; 10105 ctsio->kern_rel_offset = 0; 10106 ctsio->kern_sg_entries = 0; 10107 10108 /* 10109 * The control device is always connected. The disk device, on the 10110 * other hand, may not be online all the time. 10111 */ 10112 if (lun != NULL) 10113 devid_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10114 lun->be_lun->lun_type; 10115 else 10116 devid_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10117 devid_ptr->page_code = SVPD_DEVICE_ID; 10118 scsi_ulto2b(data_len - 4, devid_ptr->length); 10119 10120 if (port->port_type == CTL_PORT_FC) 10121 proto = SCSI_PROTO_FC << 4; 10122 else if (port->port_type == CTL_PORT_ISCSI) 10123 proto = SCSI_PROTO_ISCSI << 4; 10124 else 10125 proto = SCSI_PROTO_SPI << 4; 10126 desc = (struct scsi_vpd_id_descriptor *)devid_ptr->desc_list; 10127 10128 /* 10129 * We're using a LUN association here. i.e., this device ID is a 10130 * per-LUN identifier. 10131 */ 10132 if (lun && lun->lun_devid) { 10133 memcpy(desc, lun->lun_devid->data, lun->lun_devid->len); 10134 desc = (struct scsi_vpd_id_descriptor *)((uint8_t *)desc + 10135 lun->lun_devid->len); 10136 } 10137 10138 /* 10139 * This is for the WWPN which is a port association. 10140 */ 10141 if (port->port_devid) { 10142 memcpy(desc, port->port_devid->data, port->port_devid->len); 10143 desc = (struct scsi_vpd_id_descriptor *)((uint8_t *)desc + 10144 port->port_devid->len); 10145 } 10146 10147 /* 10148 * This is for the Relative Target Port(type 4h) identifier 10149 */ 10150 desc->proto_codeset = proto | SVPD_ID_CODESET_BINARY; 10151 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_PORT | 10152 SVPD_ID_TYPE_RELTARG; 10153 desc->length = 4; 10154 scsi_ulto2b(ctsio->io_hdr.nexus.targ_port, &desc->identifier[2]); 10155 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 10156 sizeof(struct scsi_vpd_id_rel_trgt_port_id)); 10157 10158 /* 10159 * This is for the Target Port Group(type 5h) identifier 10160 */ 10161 desc->proto_codeset = proto | SVPD_ID_CODESET_BINARY; 10162 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_PORT | 10163 SVPD_ID_TYPE_TPORTGRP; 10164 desc->length = 4; 10165 scsi_ulto2b(ctsio->io_hdr.nexus.targ_port / CTL_MAX_PORTS + 1, 10166 &desc->identifier[2]); 10167 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 10168 sizeof(struct scsi_vpd_id_trgt_port_grp_id)); 10169 10170 /* 10171 * This is for the Target identifier 10172 */ 10173 if (port->target_devid) { 10174 memcpy(desc, port->target_devid->data, port->target_devid->len); 10175 } 10176 10177 ctsio->scsi_status = SCSI_STATUS_OK; 10178 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10179 ctsio->be_move_done = ctl_config_move_done; 10180 ctl_datamove((union ctl_io *)ctsio); 10181 10182 return (CTL_RETVAL_COMPLETE); 10183} 10184 10185static int 10186ctl_inquiry_evpd_scsi_ports(struct ctl_scsiio *ctsio, int alloc_len) 10187{ 10188 struct ctl_softc *softc = control_softc; 10189 struct scsi_vpd_scsi_ports *sp; 10190 struct scsi_vpd_port_designation *pd; 10191 struct scsi_vpd_port_designation_cont *pdc; 10192 struct ctl_lun *lun; 10193 struct ctl_port *port; 10194 int data_len, num_target_ports, iid_len, id_len, g, pg, p; 10195 int num_target_port_groups, single; 10196 10197 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10198 10199 single = ctl_is_single; 10200 if (single) 10201 num_target_port_groups = 1; 10202 else 10203 num_target_port_groups = NUM_TARGET_PORT_GROUPS; 10204 num_target_ports = 0; 10205 iid_len = 0; 10206 id_len = 0; 10207 mtx_lock(&softc->ctl_lock); 10208 STAILQ_FOREACH(port, &softc->port_list, links) { 10209 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 10210 continue; 10211 if (lun != NULL && 10212 ctl_map_lun_back(port->targ_port, lun->lun) >= 10213 CTL_MAX_LUNS) 10214 continue; 10215 num_target_ports++; 10216 if (port->init_devid) 10217 iid_len += port->init_devid->len; 10218 if (port->port_devid) 10219 id_len += port->port_devid->len; 10220 } 10221 mtx_unlock(&softc->ctl_lock); 10222 10223 data_len = sizeof(struct scsi_vpd_scsi_ports) + num_target_port_groups * 10224 num_target_ports * (sizeof(struct scsi_vpd_port_designation) + 10225 sizeof(struct scsi_vpd_port_designation_cont)) + iid_len + id_len; 10226 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 10227 sp = (struct scsi_vpd_scsi_ports *)ctsio->kern_data_ptr; 10228 ctsio->kern_sg_entries = 0; 10229 10230 if (data_len < alloc_len) { 10231 ctsio->residual = alloc_len - data_len; 10232 ctsio->kern_data_len = data_len; 10233 ctsio->kern_total_len = data_len; 10234 } else { 10235 ctsio->residual = 0; 10236 ctsio->kern_data_len = alloc_len; 10237 ctsio->kern_total_len = alloc_len; 10238 } 10239 ctsio->kern_data_resid = 0; 10240 ctsio->kern_rel_offset = 0; 10241 ctsio->kern_sg_entries = 0; 10242 10243 /* 10244 * The control device is always connected. The disk device, on the 10245 * other hand, may not be online all the time. Need to change this 10246 * to figure out whether the disk device is actually online or not. 10247 */ 10248 if (lun != NULL) 10249 sp->device = (SID_QUAL_LU_CONNECTED << 5) | 10250 lun->be_lun->lun_type; 10251 else 10252 sp->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10253 10254 sp->page_code = SVPD_SCSI_PORTS; 10255 scsi_ulto2b(data_len - sizeof(struct scsi_vpd_scsi_ports), 10256 sp->page_length); 10257 pd = &sp->design[0]; 10258 10259 mtx_lock(&softc->ctl_lock); 10260 if (softc->flags & CTL_FLAG_MASTER_SHELF) 10261 pg = 0; 10262 else 10263 pg = 1; 10264 for (g = 0; g < num_target_port_groups; g++) { 10265 STAILQ_FOREACH(port, &softc->port_list, links) { 10266 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 10267 continue; 10268 if (lun != NULL && 10269 ctl_map_lun_back(port->targ_port, lun->lun) >= 10270 CTL_MAX_LUNS) 10271 continue; 10272 p = port->targ_port % CTL_MAX_PORTS + g * CTL_MAX_PORTS; 10273 scsi_ulto2b(p, pd->relative_port_id); 10274 if (port->init_devid && g == pg) { 10275 iid_len = port->init_devid->len; 10276 memcpy(pd->initiator_transportid, 10277 port->init_devid->data, port->init_devid->len); 10278 } else 10279 iid_len = 0; 10280 scsi_ulto2b(iid_len, pd->initiator_transportid_length); 10281 pdc = (struct scsi_vpd_port_designation_cont *) 10282 (&pd->initiator_transportid[iid_len]); 10283 if (port->port_devid && g == pg) { 10284 id_len = port->port_devid->len; 10285 memcpy(pdc->target_port_descriptors, 10286 port->port_devid->data, port->port_devid->len); 10287 } else 10288 id_len = 0; 10289 scsi_ulto2b(id_len, pdc->target_port_descriptors_length); 10290 pd = (struct scsi_vpd_port_designation *) 10291 ((uint8_t *)pdc->target_port_descriptors + id_len); 10292 } 10293 } 10294 mtx_unlock(&softc->ctl_lock); 10295 10296 ctsio->scsi_status = SCSI_STATUS_OK; 10297 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10298 ctsio->be_move_done = ctl_config_move_done; 10299 ctl_datamove((union ctl_io *)ctsio); 10300 10301 return (CTL_RETVAL_COMPLETE); 10302} 10303 10304static int 10305ctl_inquiry_evpd_block_limits(struct ctl_scsiio *ctsio, int alloc_len) 10306{ 10307 struct scsi_vpd_block_limits *bl_ptr; 10308 struct ctl_lun *lun; 10309 int bs; 10310 10311 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10312 10313 ctsio->kern_data_ptr = malloc(sizeof(*bl_ptr), M_CTL, M_WAITOK | M_ZERO); 10314 bl_ptr = (struct scsi_vpd_block_limits *)ctsio->kern_data_ptr; 10315 ctsio->kern_sg_entries = 0; 10316 10317 if (sizeof(*bl_ptr) < alloc_len) { 10318 ctsio->residual = alloc_len - sizeof(*bl_ptr); 10319 ctsio->kern_data_len = sizeof(*bl_ptr); 10320 ctsio->kern_total_len = sizeof(*bl_ptr); 10321 } else { 10322 ctsio->residual = 0; 10323 ctsio->kern_data_len = alloc_len; 10324 ctsio->kern_total_len = alloc_len; 10325 } 10326 ctsio->kern_data_resid = 0; 10327 ctsio->kern_rel_offset = 0; 10328 ctsio->kern_sg_entries = 0; 10329 10330 /* 10331 * The control device is always connected. The disk device, on the 10332 * other hand, may not be online all the time. Need to change this 10333 * to figure out whether the disk device is actually online or not. 10334 */ 10335 if (lun != NULL) 10336 bl_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10337 lun->be_lun->lun_type; 10338 else 10339 bl_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10340 10341 bl_ptr->page_code = SVPD_BLOCK_LIMITS; 10342 scsi_ulto2b(sizeof(*bl_ptr) - 4, bl_ptr->page_length); 10343 bl_ptr->max_cmp_write_len = 0xff; 10344 scsi_ulto4b(0xffffffff, bl_ptr->max_txfer_len); 10345 if (lun != NULL) { 10346 bs = lun->be_lun->blocksize; 10347 scsi_ulto4b(MAXPHYS / bs, bl_ptr->opt_txfer_len); 10348 if (lun->be_lun->flags & CTL_LUN_FLAG_UNMAP) { 10349 scsi_ulto4b(0xffffffff, bl_ptr->max_unmap_lba_cnt); 10350 scsi_ulto4b(0xffffffff, bl_ptr->max_unmap_blk_cnt); 10351 if (lun->be_lun->pblockexp != 0) { 10352 scsi_ulto4b((1 << lun->be_lun->pblockexp), 10353 bl_ptr->opt_unmap_grain); 10354 scsi_ulto4b(0x80000000 | lun->be_lun->pblockoff, 10355 bl_ptr->unmap_grain_align); 10356 } 10357 } 10358 scsi_ulto4b(lun->be_lun->atomicblock, 10359 bl_ptr->max_atomic_transfer_length); 10360 scsi_ulto4b(0, bl_ptr->atomic_alignment); 10361 scsi_ulto4b(0, bl_ptr->atomic_transfer_length_granularity); 10362 } 10363 scsi_u64to8b(UINT64_MAX, bl_ptr->max_write_same_length); 10364 10365 ctsio->scsi_status = SCSI_STATUS_OK; 10366 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10367 ctsio->be_move_done = ctl_config_move_done; 10368 ctl_datamove((union ctl_io *)ctsio); 10369 10370 return (CTL_RETVAL_COMPLETE); 10371} 10372 10373static int 10374ctl_inquiry_evpd_bdc(struct ctl_scsiio *ctsio, int alloc_len) 10375{ 10376 struct scsi_vpd_block_device_characteristics *bdc_ptr; 10377 struct ctl_lun *lun; 10378 const char *value; 10379 u_int i; 10380 10381 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10382 10383 ctsio->kern_data_ptr = malloc(sizeof(*bdc_ptr), M_CTL, M_WAITOK | M_ZERO); 10384 bdc_ptr = (struct scsi_vpd_block_device_characteristics *)ctsio->kern_data_ptr; 10385 ctsio->kern_sg_entries = 0; 10386 10387 if (sizeof(*bdc_ptr) < alloc_len) { 10388 ctsio->residual = alloc_len - sizeof(*bdc_ptr); 10389 ctsio->kern_data_len = sizeof(*bdc_ptr); 10390 ctsio->kern_total_len = sizeof(*bdc_ptr); 10391 } else { 10392 ctsio->residual = 0; 10393 ctsio->kern_data_len = alloc_len; 10394 ctsio->kern_total_len = alloc_len; 10395 } 10396 ctsio->kern_data_resid = 0; 10397 ctsio->kern_rel_offset = 0; 10398 ctsio->kern_sg_entries = 0; 10399 10400 /* 10401 * The control device is always connected. The disk device, on the 10402 * other hand, may not be online all the time. Need to change this 10403 * to figure out whether the disk device is actually online or not. 10404 */ 10405 if (lun != NULL) 10406 bdc_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10407 lun->be_lun->lun_type; 10408 else 10409 bdc_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10410 bdc_ptr->page_code = SVPD_BDC; 10411 scsi_ulto2b(sizeof(*bdc_ptr) - 4, bdc_ptr->page_length); 10412 if (lun != NULL && 10413 (value = ctl_get_opt(&lun->be_lun->options, "rpm")) != NULL) 10414 i = strtol(value, NULL, 0); 10415 else 10416 i = CTL_DEFAULT_ROTATION_RATE; 10417 scsi_ulto2b(i, bdc_ptr->medium_rotation_rate); 10418 if (lun != NULL && 10419 (value = ctl_get_opt(&lun->be_lun->options, "formfactor")) != NULL) 10420 i = strtol(value, NULL, 0); 10421 else 10422 i = 0; 10423 bdc_ptr->wab_wac_ff = (i & 0x0f); 10424 bdc_ptr->flags = SVPD_FUAB | SVPD_VBULS; 10425 10426 ctsio->scsi_status = SCSI_STATUS_OK; 10427 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10428 ctsio->be_move_done = ctl_config_move_done; 10429 ctl_datamove((union ctl_io *)ctsio); 10430 10431 return (CTL_RETVAL_COMPLETE); 10432} 10433 10434static int 10435ctl_inquiry_evpd_lbp(struct ctl_scsiio *ctsio, int alloc_len) 10436{ 10437 struct scsi_vpd_logical_block_prov *lbp_ptr; 10438 struct ctl_lun *lun; 10439 10440 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10441 10442 ctsio->kern_data_ptr = malloc(sizeof(*lbp_ptr), M_CTL, M_WAITOK | M_ZERO); 10443 lbp_ptr = (struct scsi_vpd_logical_block_prov *)ctsio->kern_data_ptr; 10444 ctsio->kern_sg_entries = 0; 10445 10446 if (sizeof(*lbp_ptr) < alloc_len) { 10447 ctsio->residual = alloc_len - sizeof(*lbp_ptr); 10448 ctsio->kern_data_len = sizeof(*lbp_ptr); 10449 ctsio->kern_total_len = sizeof(*lbp_ptr); 10450 } else { 10451 ctsio->residual = 0; 10452 ctsio->kern_data_len = alloc_len; 10453 ctsio->kern_total_len = alloc_len; 10454 } 10455 ctsio->kern_data_resid = 0; 10456 ctsio->kern_rel_offset = 0; 10457 ctsio->kern_sg_entries = 0; 10458 10459 /* 10460 * The control device is always connected. The disk device, on the 10461 * other hand, may not be online all the time. Need to change this 10462 * to figure out whether the disk device is actually online or not. 10463 */ 10464 if (lun != NULL) 10465 lbp_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10466 lun->be_lun->lun_type; 10467 else 10468 lbp_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10469 10470 lbp_ptr->page_code = SVPD_LBP; 10471 scsi_ulto2b(sizeof(*lbp_ptr) - 4, lbp_ptr->page_length); 10472 if (lun != NULL && lun->be_lun->flags & CTL_LUN_FLAG_UNMAP) { 10473 lbp_ptr->threshold_exponent = CTL_LBP_EXPONENT; 10474 lbp_ptr->flags = SVPD_LBP_UNMAP | SVPD_LBP_WS16 | 10475 SVPD_LBP_WS10 | SVPD_LBP_RZ | SVPD_LBP_ANC_SUP; 10476 lbp_ptr->prov_type = SVPD_LBP_THIN; 10477 } 10478 10479 ctsio->scsi_status = SCSI_STATUS_OK; 10480 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10481 ctsio->be_move_done = ctl_config_move_done; 10482 ctl_datamove((union ctl_io *)ctsio); 10483 10484 return (CTL_RETVAL_COMPLETE); 10485} 10486 10487static int 10488ctl_inquiry_evpd(struct ctl_scsiio *ctsio) 10489{ 10490 struct scsi_inquiry *cdb; 10491 struct ctl_lun *lun; 10492 int alloc_len, retval; 10493 10494 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10495 cdb = (struct scsi_inquiry *)ctsio->cdb; 10496 10497 retval = CTL_RETVAL_COMPLETE; 10498 10499 alloc_len = scsi_2btoul(cdb->length); 10500 10501 switch (cdb->page_code) { 10502 case SVPD_SUPPORTED_PAGES: 10503 retval = ctl_inquiry_evpd_supported(ctsio, alloc_len); 10504 break; 10505 case SVPD_UNIT_SERIAL_NUMBER: 10506 retval = ctl_inquiry_evpd_serial(ctsio, alloc_len); 10507 break; 10508 case SVPD_DEVICE_ID: 10509 retval = ctl_inquiry_evpd_devid(ctsio, alloc_len); 10510 break; 10511 case SVPD_EXTENDED_INQUIRY_DATA: 10512 retval = ctl_inquiry_evpd_eid(ctsio, alloc_len); 10513 break; 10514 case SVPD_MODE_PAGE_POLICY: 10515 retval = ctl_inquiry_evpd_mpp(ctsio, alloc_len); 10516 break; 10517 case SVPD_SCSI_PORTS: 10518 retval = ctl_inquiry_evpd_scsi_ports(ctsio, alloc_len); 10519 break; 10520 case SVPD_SCSI_TPC: 10521 retval = ctl_inquiry_evpd_tpc(ctsio, alloc_len); 10522 break; 10523 case SVPD_BLOCK_LIMITS: 10524 retval = ctl_inquiry_evpd_block_limits(ctsio, alloc_len); 10525 break; 10526 case SVPD_BDC: 10527 retval = ctl_inquiry_evpd_bdc(ctsio, alloc_len); 10528 break; 10529 case SVPD_LBP: 10530 retval = ctl_inquiry_evpd_lbp(ctsio, alloc_len); 10531 break; 10532 default: 10533 ctl_set_invalid_field(ctsio, 10534 /*sks_valid*/ 1, 10535 /*command*/ 1, 10536 /*field*/ 2, 10537 /*bit_valid*/ 0, 10538 /*bit*/ 0); 10539 ctl_done((union ctl_io *)ctsio); 10540 retval = CTL_RETVAL_COMPLETE; 10541 break; 10542 } 10543 10544 return (retval); 10545} 10546 10547static int 10548ctl_inquiry_std(struct ctl_scsiio *ctsio) 10549{ 10550 struct scsi_inquiry_data *inq_ptr; 10551 struct scsi_inquiry *cdb; 10552 struct ctl_softc *ctl_softc; 10553 struct ctl_lun *lun; 10554 char *val; 10555 uint32_t alloc_len, data_len; 10556 ctl_port_type port_type; 10557 10558 ctl_softc = control_softc; 10559 10560 /* 10561 * Figure out whether we're talking to a Fibre Channel port or not. 10562 * We treat the ioctl front end, and any SCSI adapters, as packetized 10563 * SCSI front ends. 10564 */ 10565 port_type = ctl_softc->ctl_ports[ 10566 ctl_port_idx(ctsio->io_hdr.nexus.targ_port)]->port_type; 10567 if (port_type == CTL_PORT_IOCTL || port_type == CTL_PORT_INTERNAL) 10568 port_type = CTL_PORT_SCSI; 10569 10570 lun = ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10571 cdb = (struct scsi_inquiry *)ctsio->cdb; 10572 alloc_len = scsi_2btoul(cdb->length); 10573 10574 /* 10575 * We malloc the full inquiry data size here and fill it 10576 * in. If the user only asks for less, we'll give him 10577 * that much. 10578 */ 10579 data_len = offsetof(struct scsi_inquiry_data, vendor_specific1); 10580 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 10581 inq_ptr = (struct scsi_inquiry_data *)ctsio->kern_data_ptr; 10582 ctsio->kern_sg_entries = 0; 10583 ctsio->kern_data_resid = 0; 10584 ctsio->kern_rel_offset = 0; 10585 10586 if (data_len < alloc_len) { 10587 ctsio->residual = alloc_len - data_len; 10588 ctsio->kern_data_len = data_len; 10589 ctsio->kern_total_len = data_len; 10590 } else { 10591 ctsio->residual = 0; 10592 ctsio->kern_data_len = alloc_len; 10593 ctsio->kern_total_len = alloc_len; 10594 } 10595 10596 /* 10597 * If we have a LUN configured, report it as connected. Otherwise, 10598 * report that it is offline or no device is supported, depending 10599 * on the value of inquiry_pq_no_lun. 10600 * 10601 * According to the spec (SPC-4 r34), the peripheral qualifier 10602 * SID_QUAL_LU_OFFLINE (001b) is used in the following scenario: 10603 * 10604 * "A peripheral device having the specified peripheral device type 10605 * is not connected to this logical unit. However, the device 10606 * server is capable of supporting the specified peripheral device 10607 * type on this logical unit." 10608 * 10609 * According to the same spec, the peripheral qualifier 10610 * SID_QUAL_BAD_LU (011b) is used in this scenario: 10611 * 10612 * "The device server is not capable of supporting a peripheral 10613 * device on this logical unit. For this peripheral qualifier the 10614 * peripheral device type shall be set to 1Fh. All other peripheral 10615 * device type values are reserved for this peripheral qualifier." 10616 * 10617 * Given the text, it would seem that we probably want to report that 10618 * the LUN is offline here. There is no LUN connected, but we can 10619 * support a LUN at the given LUN number. 10620 * 10621 * In the real world, though, it sounds like things are a little 10622 * different: 10623 * 10624 * - Linux, when presented with a LUN with the offline peripheral 10625 * qualifier, will create an sg driver instance for it. So when 10626 * you attach it to CTL, you wind up with a ton of sg driver 10627 * instances. (One for every LUN that Linux bothered to probe.) 10628 * Linux does this despite the fact that it issues a REPORT LUNs 10629 * to LUN 0 to get the inventory of supported LUNs. 10630 * 10631 * - There is other anecdotal evidence (from Emulex folks) about 10632 * arrays that use the offline peripheral qualifier for LUNs that 10633 * are on the "passive" path in an active/passive array. 10634 * 10635 * So the solution is provide a hopefully reasonable default 10636 * (return bad/no LUN) and allow the user to change the behavior 10637 * with a tunable/sysctl variable. 10638 */ 10639 if (lun != NULL) 10640 inq_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10641 lun->be_lun->lun_type; 10642 else if (ctl_softc->inquiry_pq_no_lun == 0) 10643 inq_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10644 else 10645 inq_ptr->device = (SID_QUAL_BAD_LU << 5) | T_NODEVICE; 10646 10647 /* RMB in byte 2 is 0 */ 10648 inq_ptr->version = SCSI_REV_SPC4; 10649 10650 /* 10651 * According to SAM-3, even if a device only supports a single 10652 * level of LUN addressing, it should still set the HISUP bit: 10653 * 10654 * 4.9.1 Logical unit numbers overview 10655 * 10656 * All logical unit number formats described in this standard are 10657 * hierarchical in structure even when only a single level in that 10658 * hierarchy is used. The HISUP bit shall be set to one in the 10659 * standard INQUIRY data (see SPC-2) when any logical unit number 10660 * format described in this standard is used. Non-hierarchical 10661 * formats are outside the scope of this standard. 10662 * 10663 * Therefore we set the HiSup bit here. 10664 * 10665 * The reponse format is 2, per SPC-3. 10666 */ 10667 inq_ptr->response_format = SID_HiSup | 2; 10668 10669 inq_ptr->additional_length = data_len - 10670 (offsetof(struct scsi_inquiry_data, additional_length) + 1); 10671 CTL_DEBUG_PRINT(("additional_length = %d\n", 10672 inq_ptr->additional_length)); 10673 10674 inq_ptr->spc3_flags = SPC3_SID_3PC | SPC3_SID_TPGS_IMPLICIT; 10675 /* 16 bit addressing */ 10676 if (port_type == CTL_PORT_SCSI) 10677 inq_ptr->spc2_flags = SPC2_SID_ADDR16; 10678 /* XXX set the SID_MultiP bit here if we're actually going to 10679 respond on multiple ports */ 10680 inq_ptr->spc2_flags |= SPC2_SID_MultiP; 10681 10682 /* 16 bit data bus, synchronous transfers */ 10683 if (port_type == CTL_PORT_SCSI) 10684 inq_ptr->flags = SID_WBus16 | SID_Sync; 10685 /* 10686 * XXX KDM do we want to support tagged queueing on the control 10687 * device at all? 10688 */ 10689 if ((lun == NULL) 10690 || (lun->be_lun->lun_type != T_PROCESSOR)) 10691 inq_ptr->flags |= SID_CmdQue; 10692 /* 10693 * Per SPC-3, unused bytes in ASCII strings are filled with spaces. 10694 * We have 8 bytes for the vendor name, and 16 bytes for the device 10695 * name and 4 bytes for the revision. 10696 */ 10697 if (lun == NULL || (val = ctl_get_opt(&lun->be_lun->options, 10698 "vendor")) == NULL) { 10699 strncpy(inq_ptr->vendor, CTL_VENDOR, sizeof(inq_ptr->vendor)); 10700 } else { 10701 memset(inq_ptr->vendor, ' ', sizeof(inq_ptr->vendor)); 10702 strncpy(inq_ptr->vendor, val, 10703 min(sizeof(inq_ptr->vendor), strlen(val))); 10704 } 10705 if (lun == NULL) { 10706 strncpy(inq_ptr->product, CTL_DIRECT_PRODUCT, 10707 sizeof(inq_ptr->product)); 10708 } else if ((val = ctl_get_opt(&lun->be_lun->options, "product")) == NULL) { 10709 switch (lun->be_lun->lun_type) { 10710 case T_DIRECT: 10711 strncpy(inq_ptr->product, CTL_DIRECT_PRODUCT, 10712 sizeof(inq_ptr->product)); 10713 break; 10714 case T_PROCESSOR: 10715 strncpy(inq_ptr->product, CTL_PROCESSOR_PRODUCT, 10716 sizeof(inq_ptr->product)); 10717 break; 10718 default: 10719 strncpy(inq_ptr->product, CTL_UNKNOWN_PRODUCT, 10720 sizeof(inq_ptr->product)); 10721 break; 10722 } 10723 } else { 10724 memset(inq_ptr->product, ' ', sizeof(inq_ptr->product)); 10725 strncpy(inq_ptr->product, val, 10726 min(sizeof(inq_ptr->product), strlen(val))); 10727 } 10728 10729 /* 10730 * XXX make this a macro somewhere so it automatically gets 10731 * incremented when we make changes. 10732 */ 10733 if (lun == NULL || (val = ctl_get_opt(&lun->be_lun->options, 10734 "revision")) == NULL) { 10735 strncpy(inq_ptr->revision, "0001", sizeof(inq_ptr->revision)); 10736 } else { 10737 memset(inq_ptr->revision, ' ', sizeof(inq_ptr->revision)); 10738 strncpy(inq_ptr->revision, val, 10739 min(sizeof(inq_ptr->revision), strlen(val))); 10740 } 10741 10742 /* 10743 * For parallel SCSI, we support double transition and single 10744 * transition clocking. We also support QAS (Quick Arbitration 10745 * and Selection) and Information Unit transfers on both the 10746 * control and array devices. 10747 */ 10748 if (port_type == CTL_PORT_SCSI) 10749 inq_ptr->spi3data = SID_SPI_CLOCK_DT_ST | SID_SPI_QAS | 10750 SID_SPI_IUS; 10751 10752 /* SAM-5 (no version claimed) */ 10753 scsi_ulto2b(0x00A0, inq_ptr->version1); 10754 /* SPC-4 (no version claimed) */ 10755 scsi_ulto2b(0x0460, inq_ptr->version2); 10756 if (port_type == CTL_PORT_FC) { 10757 /* FCP-2 ANSI INCITS.350:2003 */ 10758 scsi_ulto2b(0x0917, inq_ptr->version3); 10759 } else if (port_type == CTL_PORT_SCSI) { 10760 /* SPI-4 ANSI INCITS.362:200x */ 10761 scsi_ulto2b(0x0B56, inq_ptr->version3); 10762 } else if (port_type == CTL_PORT_ISCSI) { 10763 /* iSCSI (no version claimed) */ 10764 scsi_ulto2b(0x0960, inq_ptr->version3); 10765 } else if (port_type == CTL_PORT_SAS) { 10766 /* SAS (no version claimed) */ 10767 scsi_ulto2b(0x0BE0, inq_ptr->version3); 10768 } 10769 10770 if (lun == NULL) { 10771 /* SBC-4 (no version claimed) */ 10772 scsi_ulto2b(0x0600, inq_ptr->version4); 10773 } else { 10774 switch (lun->be_lun->lun_type) { 10775 case T_DIRECT: 10776 /* SBC-4 (no version claimed) */ 10777 scsi_ulto2b(0x0600, inq_ptr->version4); 10778 break; 10779 case T_PROCESSOR: 10780 default: 10781 break; 10782 } 10783 } 10784 10785 ctsio->scsi_status = SCSI_STATUS_OK; 10786 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10787 ctsio->be_move_done = ctl_config_move_done; 10788 ctl_datamove((union ctl_io *)ctsio); 10789 return (CTL_RETVAL_COMPLETE); 10790} 10791 10792int 10793ctl_inquiry(struct ctl_scsiio *ctsio) 10794{ 10795 struct scsi_inquiry *cdb; 10796 int retval; 10797 10798 CTL_DEBUG_PRINT(("ctl_inquiry\n")); 10799 10800 cdb = (struct scsi_inquiry *)ctsio->cdb; 10801 if (cdb->byte2 & SI_EVPD) 10802 retval = ctl_inquiry_evpd(ctsio); 10803 else if (cdb->page_code == 0) 10804 retval = ctl_inquiry_std(ctsio); 10805 else { 10806 ctl_set_invalid_field(ctsio, 10807 /*sks_valid*/ 1, 10808 /*command*/ 1, 10809 /*field*/ 2, 10810 /*bit_valid*/ 0, 10811 /*bit*/ 0); 10812 ctl_done((union ctl_io *)ctsio); 10813 return (CTL_RETVAL_COMPLETE); 10814 } 10815 10816 return (retval); 10817} 10818 10819/* 10820 * For known CDB types, parse the LBA and length. 10821 */ 10822static int 10823ctl_get_lba_len(union ctl_io *io, uint64_t *lba, uint64_t *len) 10824{ 10825 if (io->io_hdr.io_type != CTL_IO_SCSI) 10826 return (1); 10827 10828 switch (io->scsiio.cdb[0]) { 10829 case COMPARE_AND_WRITE: { 10830 struct scsi_compare_and_write *cdb; 10831 10832 cdb = (struct scsi_compare_and_write *)io->scsiio.cdb; 10833 10834 *lba = scsi_8btou64(cdb->addr); 10835 *len = cdb->length; 10836 break; 10837 } 10838 case READ_6: 10839 case WRITE_6: { 10840 struct scsi_rw_6 *cdb; 10841 10842 cdb = (struct scsi_rw_6 *)io->scsiio.cdb; 10843 10844 *lba = scsi_3btoul(cdb->addr); 10845 /* only 5 bits are valid in the most significant address byte */ 10846 *lba &= 0x1fffff; 10847 *len = cdb->length; 10848 break; 10849 } 10850 case READ_10: 10851 case WRITE_10: { 10852 struct scsi_rw_10 *cdb; 10853 10854 cdb = (struct scsi_rw_10 *)io->scsiio.cdb; 10855 10856 *lba = scsi_4btoul(cdb->addr); 10857 *len = scsi_2btoul(cdb->length); 10858 break; 10859 } 10860 case WRITE_VERIFY_10: { 10861 struct scsi_write_verify_10 *cdb; 10862 10863 cdb = (struct scsi_write_verify_10 *)io->scsiio.cdb; 10864 10865 *lba = scsi_4btoul(cdb->addr); 10866 *len = scsi_2btoul(cdb->length); 10867 break; 10868 } 10869 case READ_12: 10870 case WRITE_12: { 10871 struct scsi_rw_12 *cdb; 10872 10873 cdb = (struct scsi_rw_12 *)io->scsiio.cdb; 10874 10875 *lba = scsi_4btoul(cdb->addr); 10876 *len = scsi_4btoul(cdb->length); 10877 break; 10878 } 10879 case WRITE_VERIFY_12: { 10880 struct scsi_write_verify_12 *cdb; 10881 10882 cdb = (struct scsi_write_verify_12 *)io->scsiio.cdb; 10883 10884 *lba = scsi_4btoul(cdb->addr); 10885 *len = scsi_4btoul(cdb->length); 10886 break; 10887 } 10888 case READ_16: 10889 case WRITE_16: 10890 case WRITE_ATOMIC_16: { 10891 struct scsi_rw_16 *cdb; 10892 10893 cdb = (struct scsi_rw_16 *)io->scsiio.cdb; 10894 10895 *lba = scsi_8btou64(cdb->addr); 10896 *len = scsi_4btoul(cdb->length); 10897 break; 10898 } 10899 case WRITE_VERIFY_16: { 10900 struct scsi_write_verify_16 *cdb; 10901 10902 cdb = (struct scsi_write_verify_16 *)io->scsiio.cdb; 10903 10904 *lba = scsi_8btou64(cdb->addr); 10905 *len = scsi_4btoul(cdb->length); 10906 break; 10907 } 10908 case WRITE_SAME_10: { 10909 struct scsi_write_same_10 *cdb; 10910 10911 cdb = (struct scsi_write_same_10 *)io->scsiio.cdb; 10912 10913 *lba = scsi_4btoul(cdb->addr); 10914 *len = scsi_2btoul(cdb->length); 10915 break; 10916 } 10917 case WRITE_SAME_16: { 10918 struct scsi_write_same_16 *cdb; 10919 10920 cdb = (struct scsi_write_same_16 *)io->scsiio.cdb; 10921 10922 *lba = scsi_8btou64(cdb->addr); 10923 *len = scsi_4btoul(cdb->length); 10924 break; 10925 } 10926 case VERIFY_10: { 10927 struct scsi_verify_10 *cdb; 10928 10929 cdb = (struct scsi_verify_10 *)io->scsiio.cdb; 10930 10931 *lba = scsi_4btoul(cdb->addr); 10932 *len = scsi_2btoul(cdb->length); 10933 break; 10934 } 10935 case VERIFY_12: { 10936 struct scsi_verify_12 *cdb; 10937 10938 cdb = (struct scsi_verify_12 *)io->scsiio.cdb; 10939 10940 *lba = scsi_4btoul(cdb->addr); 10941 *len = scsi_4btoul(cdb->length); 10942 break; 10943 } 10944 case VERIFY_16: { 10945 struct scsi_verify_16 *cdb; 10946 10947 cdb = (struct scsi_verify_16 *)io->scsiio.cdb; 10948 10949 *lba = scsi_8btou64(cdb->addr); 10950 *len = scsi_4btoul(cdb->length); 10951 break; 10952 } 10953 case UNMAP: { 10954 *lba = 0; 10955 *len = UINT64_MAX; 10956 break; 10957 } 10958 default: 10959 return (1); 10960 break; /* NOTREACHED */ 10961 } 10962 10963 return (0); 10964} 10965 10966static ctl_action 10967ctl_extent_check_lba(uint64_t lba1, uint64_t len1, uint64_t lba2, uint64_t len2) 10968{ 10969 uint64_t endlba1, endlba2; 10970 10971 endlba1 = lba1 + len1 - 1; 10972 endlba2 = lba2 + len2 - 1; 10973 10974 if ((endlba1 < lba2) 10975 || (endlba2 < lba1)) 10976 return (CTL_ACTION_PASS); 10977 else 10978 return (CTL_ACTION_BLOCK); 10979} 10980 10981static int 10982ctl_extent_check_unmap(union ctl_io *io, uint64_t lba2, uint64_t len2) 10983{ 10984 struct ctl_ptr_len_flags *ptrlen; 10985 struct scsi_unmap_desc *buf, *end, *range; 10986 uint64_t lba; 10987 uint32_t len; 10988 10989 /* If not UNMAP -- go other way. */ 10990 if (io->io_hdr.io_type != CTL_IO_SCSI || 10991 io->scsiio.cdb[0] != UNMAP) 10992 return (CTL_ACTION_ERROR); 10993 10994 /* If UNMAP without data -- block and wait for data. */ 10995 ptrlen = (struct ctl_ptr_len_flags *) 10996 &io->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 10997 if ((io->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0 || 10998 ptrlen->ptr == NULL) 10999 return (CTL_ACTION_BLOCK); 11000 11001 /* UNMAP with data -- check for collision. */ 11002 buf = (struct scsi_unmap_desc *)ptrlen->ptr; 11003 end = buf + ptrlen->len / sizeof(*buf); 11004 for (range = buf; range < end; range++) { 11005 lba = scsi_8btou64(range->lba); 11006 len = scsi_4btoul(range->length); 11007 if ((lba < lba2 + len2) && (lba + len > lba2)) 11008 return (CTL_ACTION_BLOCK); 11009 } 11010 return (CTL_ACTION_PASS); 11011} 11012 11013static ctl_action 11014ctl_extent_check(union ctl_io *io1, union ctl_io *io2) 11015{ 11016 uint64_t lba1, lba2; 11017 uint64_t len1, len2; 11018 int retval; 11019 11020 if (ctl_get_lba_len(io1, &lba1, &len1) != 0) 11021 return (CTL_ACTION_ERROR); 11022 11023 retval = ctl_extent_check_unmap(io2, lba1, len1); 11024 if (retval != CTL_ACTION_ERROR) 11025 return (retval); 11026 11027 if (ctl_get_lba_len(io2, &lba2, &len2) != 0) 11028 return (CTL_ACTION_ERROR); 11029 11030 return (ctl_extent_check_lba(lba1, len1, lba2, len2)); 11031} 11032 11033static ctl_action 11034ctl_check_for_blockage(struct ctl_lun *lun, union ctl_io *pending_io, 11035 union ctl_io *ooa_io) 11036{ 11037 const struct ctl_cmd_entry *pending_entry, *ooa_entry; 11038 ctl_serialize_action *serialize_row; 11039 11040 /* 11041 * The initiator attempted multiple untagged commands at the same 11042 * time. Can't do that. 11043 */ 11044 if ((pending_io->scsiio.tag_type == CTL_TAG_UNTAGGED) 11045 && (ooa_io->scsiio.tag_type == CTL_TAG_UNTAGGED) 11046 && ((pending_io->io_hdr.nexus.targ_port == 11047 ooa_io->io_hdr.nexus.targ_port) 11048 && (pending_io->io_hdr.nexus.initid.id == 11049 ooa_io->io_hdr.nexus.initid.id)) 11050 && ((ooa_io->io_hdr.flags & CTL_FLAG_ABORT) == 0)) 11051 return (CTL_ACTION_OVERLAP); 11052 11053 /* 11054 * The initiator attempted to send multiple tagged commands with 11055 * the same ID. (It's fine if different initiators have the same 11056 * tag ID.) 11057 * 11058 * Even if all of those conditions are true, we don't kill the I/O 11059 * if the command ahead of us has been aborted. We won't end up 11060 * sending it to the FETD, and it's perfectly legal to resend a 11061 * command with the same tag number as long as the previous 11062 * instance of this tag number has been aborted somehow. 11063 */ 11064 if ((pending_io->scsiio.tag_type != CTL_TAG_UNTAGGED) 11065 && (ooa_io->scsiio.tag_type != CTL_TAG_UNTAGGED) 11066 && (pending_io->scsiio.tag_num == ooa_io->scsiio.tag_num) 11067 && ((pending_io->io_hdr.nexus.targ_port == 11068 ooa_io->io_hdr.nexus.targ_port) 11069 && (pending_io->io_hdr.nexus.initid.id == 11070 ooa_io->io_hdr.nexus.initid.id)) 11071 && ((ooa_io->io_hdr.flags & CTL_FLAG_ABORT) == 0)) 11072 return (CTL_ACTION_OVERLAP_TAG); 11073 11074 /* 11075 * If we get a head of queue tag, SAM-3 says that we should 11076 * immediately execute it. 11077 * 11078 * What happens if this command would normally block for some other 11079 * reason? e.g. a request sense with a head of queue tag 11080 * immediately after a write. Normally that would block, but this 11081 * will result in its getting executed immediately... 11082 * 11083 * We currently return "pass" instead of "skip", so we'll end up 11084 * going through the rest of the queue to check for overlapped tags. 11085 * 11086 * XXX KDM check for other types of blockage first?? 11087 */ 11088 if (pending_io->scsiio.tag_type == CTL_TAG_HEAD_OF_QUEUE) 11089 return (CTL_ACTION_PASS); 11090 11091 /* 11092 * Ordered tags have to block until all items ahead of them 11093 * have completed. If we get called with an ordered tag, we always 11094 * block, if something else is ahead of us in the queue. 11095 */ 11096 if (pending_io->scsiio.tag_type == CTL_TAG_ORDERED) 11097 return (CTL_ACTION_BLOCK); 11098 11099 /* 11100 * Simple tags get blocked until all head of queue and ordered tags 11101 * ahead of them have completed. I'm lumping untagged commands in 11102 * with simple tags here. XXX KDM is that the right thing to do? 11103 */ 11104 if (((pending_io->scsiio.tag_type == CTL_TAG_UNTAGGED) 11105 || (pending_io->scsiio.tag_type == CTL_TAG_SIMPLE)) 11106 && ((ooa_io->scsiio.tag_type == CTL_TAG_HEAD_OF_QUEUE) 11107 || (ooa_io->scsiio.tag_type == CTL_TAG_ORDERED))) 11108 return (CTL_ACTION_BLOCK); 11109 11110 pending_entry = ctl_get_cmd_entry(&pending_io->scsiio, NULL); 11111 ooa_entry = ctl_get_cmd_entry(&ooa_io->scsiio, NULL); 11112 11113 serialize_row = ctl_serialize_table[ooa_entry->seridx]; 11114 11115 switch (serialize_row[pending_entry->seridx]) { 11116 case CTL_SER_BLOCK: 11117 return (CTL_ACTION_BLOCK); 11118 case CTL_SER_EXTENT: 11119 return (ctl_extent_check(pending_io, ooa_io)); 11120 case CTL_SER_EXTENTOPT: 11121 if ((lun->mode_pages.control_page[CTL_PAGE_CURRENT].queue_flags 11122 & SCP_QUEUE_ALG_MASK) != SCP_QUEUE_ALG_UNRESTRICTED) 11123 return (ctl_extent_check(pending_io, ooa_io)); 11124 /* FALLTHROUGH */ 11125 case CTL_SER_PASS: 11126 return (CTL_ACTION_PASS); 11127 case CTL_SER_BLOCKOPT: 11128 if ((lun->mode_pages.control_page[CTL_PAGE_CURRENT].queue_flags 11129 & SCP_QUEUE_ALG_MASK) != SCP_QUEUE_ALG_UNRESTRICTED) 11130 return (CTL_ACTION_BLOCK); 11131 return (CTL_ACTION_PASS); 11132 case CTL_SER_SKIP: 11133 return (CTL_ACTION_SKIP); 11134 default: 11135 panic("invalid serialization value %d", 11136 serialize_row[pending_entry->seridx]); 11137 } 11138 11139 return (CTL_ACTION_ERROR); 11140} 11141 11142/* 11143 * Check for blockage or overlaps against the OOA (Order Of Arrival) queue. 11144 * Assumptions: 11145 * - pending_io is generally either incoming, or on the blocked queue 11146 * - starting I/O is the I/O we want to start the check with. 11147 */ 11148static ctl_action 11149ctl_check_ooa(struct ctl_lun *lun, union ctl_io *pending_io, 11150 union ctl_io *starting_io) 11151{ 11152 union ctl_io *ooa_io; 11153 ctl_action action; 11154 11155 mtx_assert(&lun->lun_lock, MA_OWNED); 11156 11157 /* 11158 * Run back along the OOA queue, starting with the current 11159 * blocked I/O and going through every I/O before it on the 11160 * queue. If starting_io is NULL, we'll just end up returning 11161 * CTL_ACTION_PASS. 11162 */ 11163 for (ooa_io = starting_io; ooa_io != NULL; 11164 ooa_io = (union ctl_io *)TAILQ_PREV(&ooa_io->io_hdr, ctl_ooaq, 11165 ooa_links)){ 11166 11167 /* 11168 * This routine just checks to see whether 11169 * cur_blocked is blocked by ooa_io, which is ahead 11170 * of it in the queue. It doesn't queue/dequeue 11171 * cur_blocked. 11172 */ 11173 action = ctl_check_for_blockage(lun, pending_io, ooa_io); 11174 switch (action) { 11175 case CTL_ACTION_BLOCK: 11176 case CTL_ACTION_OVERLAP: 11177 case CTL_ACTION_OVERLAP_TAG: 11178 case CTL_ACTION_SKIP: 11179 case CTL_ACTION_ERROR: 11180 return (action); 11181 break; /* NOTREACHED */ 11182 case CTL_ACTION_PASS: 11183 break; 11184 default: 11185 panic("invalid action %d", action); 11186 break; /* NOTREACHED */ 11187 } 11188 } 11189 11190 return (CTL_ACTION_PASS); 11191} 11192 11193/* 11194 * Assumptions: 11195 * - An I/O has just completed, and has been removed from the per-LUN OOA 11196 * queue, so some items on the blocked queue may now be unblocked. 11197 */ 11198static int 11199ctl_check_blocked(struct ctl_lun *lun) 11200{ 11201 union ctl_io *cur_blocked, *next_blocked; 11202 11203 mtx_assert(&lun->lun_lock, MA_OWNED); 11204 11205 /* 11206 * Run forward from the head of the blocked queue, checking each 11207 * entry against the I/Os prior to it on the OOA queue to see if 11208 * there is still any blockage. 11209 * 11210 * We cannot use the TAILQ_FOREACH() macro, because it can't deal 11211 * with our removing a variable on it while it is traversing the 11212 * list. 11213 */ 11214 for (cur_blocked = (union ctl_io *)TAILQ_FIRST(&lun->blocked_queue); 11215 cur_blocked != NULL; cur_blocked = next_blocked) { 11216 union ctl_io *prev_ooa; 11217 ctl_action action; 11218 11219 next_blocked = (union ctl_io *)TAILQ_NEXT(&cur_blocked->io_hdr, 11220 blocked_links); 11221 11222 prev_ooa = (union ctl_io *)TAILQ_PREV(&cur_blocked->io_hdr, 11223 ctl_ooaq, ooa_links); 11224 11225 /* 11226 * If cur_blocked happens to be the first item in the OOA 11227 * queue now, prev_ooa will be NULL, and the action 11228 * returned will just be CTL_ACTION_PASS. 11229 */ 11230 action = ctl_check_ooa(lun, cur_blocked, prev_ooa); 11231 11232 switch (action) { 11233 case CTL_ACTION_BLOCK: 11234 /* Nothing to do here, still blocked */ 11235 break; 11236 case CTL_ACTION_OVERLAP: 11237 case CTL_ACTION_OVERLAP_TAG: 11238 /* 11239 * This shouldn't happen! In theory we've already 11240 * checked this command for overlap... 11241 */ 11242 break; 11243 case CTL_ACTION_PASS: 11244 case CTL_ACTION_SKIP: { 11245 struct ctl_softc *softc; 11246 const struct ctl_cmd_entry *entry; 11247 uint32_t initidx; 11248 int isc_retval; 11249 11250 /* 11251 * The skip case shouldn't happen, this transaction 11252 * should have never made it onto the blocked queue. 11253 */ 11254 /* 11255 * This I/O is no longer blocked, we can remove it 11256 * from the blocked queue. Since this is a TAILQ 11257 * (doubly linked list), we can do O(1) removals 11258 * from any place on the list. 11259 */ 11260 TAILQ_REMOVE(&lun->blocked_queue, &cur_blocked->io_hdr, 11261 blocked_links); 11262 cur_blocked->io_hdr.flags &= ~CTL_FLAG_BLOCKED; 11263 11264 if (cur_blocked->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC){ 11265 /* 11266 * Need to send IO back to original side to 11267 * run 11268 */ 11269 union ctl_ha_msg msg_info; 11270 11271 msg_info.hdr.original_sc = 11272 cur_blocked->io_hdr.original_sc; 11273 msg_info.hdr.serializing_sc = cur_blocked; 11274 msg_info.hdr.msg_type = CTL_MSG_R2R; 11275 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 11276 &msg_info, sizeof(msg_info), 0)) > 11277 CTL_HA_STATUS_SUCCESS) { 11278 printf("CTL:Check Blocked error from " 11279 "ctl_ha_msg_send %d\n", 11280 isc_retval); 11281 } 11282 break; 11283 } 11284 entry = ctl_get_cmd_entry(&cur_blocked->scsiio, NULL); 11285 softc = control_softc; 11286 11287 initidx = ctl_get_initindex(&cur_blocked->io_hdr.nexus); 11288 11289 /* 11290 * Check this I/O for LUN state changes that may 11291 * have happened while this command was blocked. 11292 * The LUN state may have been changed by a command 11293 * ahead of us in the queue, so we need to re-check 11294 * for any states that can be caused by SCSI 11295 * commands. 11296 */ 11297 if (ctl_scsiio_lun_check(softc, lun, entry, 11298 &cur_blocked->scsiio) == 0) { 11299 cur_blocked->io_hdr.flags |= 11300 CTL_FLAG_IS_WAS_ON_RTR; 11301 ctl_enqueue_rtr(cur_blocked); 11302 } else 11303 ctl_done(cur_blocked); 11304 break; 11305 } 11306 default: 11307 /* 11308 * This probably shouldn't happen -- we shouldn't 11309 * get CTL_ACTION_ERROR, or anything else. 11310 */ 11311 break; 11312 } 11313 } 11314 11315 return (CTL_RETVAL_COMPLETE); 11316} 11317 11318/* 11319 * This routine (with one exception) checks LUN flags that can be set by 11320 * commands ahead of us in the OOA queue. These flags have to be checked 11321 * when a command initially comes in, and when we pull a command off the 11322 * blocked queue and are preparing to execute it. The reason we have to 11323 * check these flags for commands on the blocked queue is that the LUN 11324 * state may have been changed by a command ahead of us while we're on the 11325 * blocked queue. 11326 * 11327 * Ordering is somewhat important with these checks, so please pay 11328 * careful attention to the placement of any new checks. 11329 */ 11330static int 11331ctl_scsiio_lun_check(struct ctl_softc *ctl_softc, struct ctl_lun *lun, 11332 const struct ctl_cmd_entry *entry, struct ctl_scsiio *ctsio) 11333{ 11334 int retval; 11335 uint32_t residx; 11336 11337 retval = 0; 11338 11339 mtx_assert(&lun->lun_lock, MA_OWNED); 11340 11341 /* 11342 * If this shelf is a secondary shelf controller, we have to reject 11343 * any media access commands. 11344 */ 11345#if 0 11346 /* No longer needed for HA */ 11347 if (((ctl_softc->flags & CTL_FLAG_MASTER_SHELF) == 0) 11348 && ((entry->flags & CTL_CMD_FLAG_OK_ON_SECONDARY) == 0)) { 11349 ctl_set_lun_standby(ctsio); 11350 retval = 1; 11351 goto bailout; 11352 } 11353#endif 11354 11355 if (entry->pattern & CTL_LUN_PAT_WRITE) { 11356 if (lun->flags & CTL_LUN_READONLY) { 11357 ctl_set_sense(ctsio, /*current_error*/ 1, 11358 /*sense_key*/ SSD_KEY_DATA_PROTECT, 11359 /*asc*/ 0x27, /*ascq*/ 0x01, SSD_ELEM_NONE); 11360 retval = 1; 11361 goto bailout; 11362 } 11363 if ((lun->mode_pages.control_page[CTL_PAGE_CURRENT] 11364 .eca_and_aen & SCP_SWP) != 0) { 11365 ctl_set_sense(ctsio, /*current_error*/ 1, 11366 /*sense_key*/ SSD_KEY_DATA_PROTECT, 11367 /*asc*/ 0x27, /*ascq*/ 0x02, SSD_ELEM_NONE); 11368 retval = 1; 11369 goto bailout; 11370 } 11371 } 11372 11373 /* 11374 * Check for a reservation conflict. If this command isn't allowed 11375 * even on reserved LUNs, and if this initiator isn't the one who 11376 * reserved us, reject the command with a reservation conflict. 11377 */ 11378 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 11379 if ((lun->flags & CTL_LUN_RESERVED) 11380 && ((entry->flags & CTL_CMD_FLAG_ALLOW_ON_RESV) == 0)) { 11381 if (lun->res_idx != residx) { 11382 ctl_set_reservation_conflict(ctsio); 11383 retval = 1; 11384 goto bailout; 11385 } 11386 } 11387 11388 if ((lun->flags & CTL_LUN_PR_RESERVED) == 0 || 11389 (entry->flags & CTL_CMD_FLAG_ALLOW_ON_PR_RESV)) { 11390 /* No reservation or command is allowed. */; 11391 } else if ((entry->flags & CTL_CMD_FLAG_ALLOW_ON_PR_WRESV) && 11392 (lun->res_type == SPR_TYPE_WR_EX || 11393 lun->res_type == SPR_TYPE_WR_EX_RO || 11394 lun->res_type == SPR_TYPE_WR_EX_AR)) { 11395 /* The command is allowed for Write Exclusive resv. */; 11396 } else { 11397 /* 11398 * if we aren't registered or it's a res holder type 11399 * reservation and this isn't the res holder then set a 11400 * conflict. 11401 */ 11402 if (lun->pr_keys[residx] == 0 11403 || (residx != lun->pr_res_idx && lun->res_type < 4)) { 11404 ctl_set_reservation_conflict(ctsio); 11405 retval = 1; 11406 goto bailout; 11407 } 11408 11409 } 11410 11411 if ((lun->flags & CTL_LUN_OFFLINE) 11412 && ((entry->flags & CTL_CMD_FLAG_OK_ON_OFFLINE) == 0)) { 11413 ctl_set_lun_not_ready(ctsio); 11414 retval = 1; 11415 goto bailout; 11416 } 11417 11418 /* 11419 * If the LUN is stopped, see if this particular command is allowed 11420 * for a stopped lun. Otherwise, reject it with 0x04,0x02. 11421 */ 11422 if ((lun->flags & CTL_LUN_STOPPED) 11423 && ((entry->flags & CTL_CMD_FLAG_OK_ON_STOPPED) == 0)) { 11424 /* "Logical unit not ready, initializing cmd. required" */ 11425 ctl_set_lun_stopped(ctsio); 11426 retval = 1; 11427 goto bailout; 11428 } 11429 11430 if ((lun->flags & CTL_LUN_INOPERABLE) 11431 && ((entry->flags & CTL_CMD_FLAG_OK_ON_INOPERABLE) == 0)) { 11432 /* "Medium format corrupted" */ 11433 ctl_set_medium_format_corrupted(ctsio); 11434 retval = 1; 11435 goto bailout; 11436 } 11437 11438bailout: 11439 return (retval); 11440 11441} 11442 11443static void 11444ctl_failover_io(union ctl_io *io, int have_lock) 11445{ 11446 ctl_set_busy(&io->scsiio); 11447 ctl_done(io); 11448} 11449 11450static void 11451ctl_failover(void) 11452{ 11453 struct ctl_lun *lun; 11454 struct ctl_softc *ctl_softc; 11455 union ctl_io *next_io, *pending_io; 11456 union ctl_io *io; 11457 int lun_idx; 11458 int i; 11459 11460 ctl_softc = control_softc; 11461 11462 mtx_lock(&ctl_softc->ctl_lock); 11463 /* 11464 * Remove any cmds from the other SC from the rtr queue. These 11465 * will obviously only be for LUNs for which we're the primary. 11466 * We can't send status or get/send data for these commands. 11467 * Since they haven't been executed yet, we can just remove them. 11468 * We'll either abort them or delete them below, depending on 11469 * which HA mode we're in. 11470 */ 11471#ifdef notyet 11472 mtx_lock(&ctl_softc->queue_lock); 11473 for (io = (union ctl_io *)STAILQ_FIRST(&ctl_softc->rtr_queue); 11474 io != NULL; io = next_io) { 11475 next_io = (union ctl_io *)STAILQ_NEXT(&io->io_hdr, links); 11476 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) 11477 STAILQ_REMOVE(&ctl_softc->rtr_queue, &io->io_hdr, 11478 ctl_io_hdr, links); 11479 } 11480 mtx_unlock(&ctl_softc->queue_lock); 11481#endif 11482 11483 for (lun_idx=0; lun_idx < ctl_softc->num_luns; lun_idx++) { 11484 lun = ctl_softc->ctl_luns[lun_idx]; 11485 if (lun==NULL) 11486 continue; 11487 11488 /* 11489 * Processor LUNs are primary on both sides. 11490 * XXX will this always be true? 11491 */ 11492 if (lun->be_lun->lun_type == T_PROCESSOR) 11493 continue; 11494 11495 if ((lun->flags & CTL_LUN_PRIMARY_SC) 11496 && (ctl_softc->ha_mode == CTL_HA_MODE_SER_ONLY)) { 11497 printf("FAILOVER: primary lun %d\n", lun_idx); 11498 /* 11499 * Remove all commands from the other SC. First from the 11500 * blocked queue then from the ooa queue. Once we have 11501 * removed them. Call ctl_check_blocked to see if there 11502 * is anything that can run. 11503 */ 11504 for (io = (union ctl_io *)TAILQ_FIRST( 11505 &lun->blocked_queue); io != NULL; io = next_io) { 11506 11507 next_io = (union ctl_io *)TAILQ_NEXT( 11508 &io->io_hdr, blocked_links); 11509 11510 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) { 11511 TAILQ_REMOVE(&lun->blocked_queue, 11512 &io->io_hdr,blocked_links); 11513 io->io_hdr.flags &= ~CTL_FLAG_BLOCKED; 11514 TAILQ_REMOVE(&lun->ooa_queue, 11515 &io->io_hdr, ooa_links); 11516 11517 ctl_free_io(io); 11518 } 11519 } 11520 11521 for (io = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); 11522 io != NULL; io = next_io) { 11523 11524 next_io = (union ctl_io *)TAILQ_NEXT( 11525 &io->io_hdr, ooa_links); 11526 11527 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) { 11528 11529 TAILQ_REMOVE(&lun->ooa_queue, 11530 &io->io_hdr, 11531 ooa_links); 11532 11533 ctl_free_io(io); 11534 } 11535 } 11536 ctl_check_blocked(lun); 11537 } else if ((lun->flags & CTL_LUN_PRIMARY_SC) 11538 && (ctl_softc->ha_mode == CTL_HA_MODE_XFER)) { 11539 11540 printf("FAILOVER: primary lun %d\n", lun_idx); 11541 /* 11542 * Abort all commands from the other SC. We can't 11543 * send status back for them now. These should get 11544 * cleaned up when they are completed or come out 11545 * for a datamove operation. 11546 */ 11547 for (io = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); 11548 io != NULL; io = next_io) { 11549 next_io = (union ctl_io *)TAILQ_NEXT( 11550 &io->io_hdr, ooa_links); 11551 11552 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) 11553 io->io_hdr.flags |= CTL_FLAG_ABORT; 11554 } 11555 } else if (((lun->flags & CTL_LUN_PRIMARY_SC) == 0) 11556 && (ctl_softc->ha_mode == CTL_HA_MODE_XFER)) { 11557 11558 printf("FAILOVER: secondary lun %d\n", lun_idx); 11559 11560 lun->flags |= CTL_LUN_PRIMARY_SC; 11561 11562 /* 11563 * We send all I/O that was sent to this controller 11564 * and redirected to the other side back with 11565 * busy status, and have the initiator retry it. 11566 * Figuring out how much data has been transferred, 11567 * etc. and picking up where we left off would be 11568 * very tricky. 11569 * 11570 * XXX KDM need to remove I/O from the blocked 11571 * queue as well! 11572 */ 11573 for (pending_io = (union ctl_io *)TAILQ_FIRST( 11574 &lun->ooa_queue); pending_io != NULL; 11575 pending_io = next_io) { 11576 11577 next_io = (union ctl_io *)TAILQ_NEXT( 11578 &pending_io->io_hdr, ooa_links); 11579 11580 pending_io->io_hdr.flags &= 11581 ~CTL_FLAG_SENT_2OTHER_SC; 11582 11583 if (pending_io->io_hdr.flags & 11584 CTL_FLAG_IO_ACTIVE) { 11585 pending_io->io_hdr.flags |= 11586 CTL_FLAG_FAILOVER; 11587 } else { 11588 ctl_set_busy(&pending_io->scsiio); 11589 ctl_done(pending_io); 11590 } 11591 } 11592 11593 /* 11594 * Build Unit Attention 11595 */ 11596 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 11597 lun->pending_ua[i] |= 11598 CTL_UA_ASYM_ACC_CHANGE; 11599 } 11600 } else if (((lun->flags & CTL_LUN_PRIMARY_SC) == 0) 11601 && (ctl_softc->ha_mode == CTL_HA_MODE_SER_ONLY)) { 11602 printf("FAILOVER: secondary lun %d\n", lun_idx); 11603 /* 11604 * if the first io on the OOA is not on the RtR queue 11605 * add it. 11606 */ 11607 lun->flags |= CTL_LUN_PRIMARY_SC; 11608 11609 pending_io = (union ctl_io *)TAILQ_FIRST( 11610 &lun->ooa_queue); 11611 if (pending_io==NULL) { 11612 printf("Nothing on OOA queue\n"); 11613 continue; 11614 } 11615 11616 pending_io->io_hdr.flags &= ~CTL_FLAG_SENT_2OTHER_SC; 11617 if ((pending_io->io_hdr.flags & 11618 CTL_FLAG_IS_WAS_ON_RTR) == 0) { 11619 pending_io->io_hdr.flags |= 11620 CTL_FLAG_IS_WAS_ON_RTR; 11621 ctl_enqueue_rtr(pending_io); 11622 } 11623#if 0 11624 else 11625 { 11626 printf("Tag 0x%04x is running\n", 11627 pending_io->scsiio.tag_num); 11628 } 11629#endif 11630 11631 next_io = (union ctl_io *)TAILQ_NEXT( 11632 &pending_io->io_hdr, ooa_links); 11633 for (pending_io=next_io; pending_io != NULL; 11634 pending_io = next_io) { 11635 pending_io->io_hdr.flags &= 11636 ~CTL_FLAG_SENT_2OTHER_SC; 11637 next_io = (union ctl_io *)TAILQ_NEXT( 11638 &pending_io->io_hdr, ooa_links); 11639 if (pending_io->io_hdr.flags & 11640 CTL_FLAG_IS_WAS_ON_RTR) { 11641#if 0 11642 printf("Tag 0x%04x is running\n", 11643 pending_io->scsiio.tag_num); 11644#endif 11645 continue; 11646 } 11647 11648 switch (ctl_check_ooa(lun, pending_io, 11649 (union ctl_io *)TAILQ_PREV( 11650 &pending_io->io_hdr, ctl_ooaq, 11651 ooa_links))) { 11652 11653 case CTL_ACTION_BLOCK: 11654 TAILQ_INSERT_TAIL(&lun->blocked_queue, 11655 &pending_io->io_hdr, 11656 blocked_links); 11657 pending_io->io_hdr.flags |= 11658 CTL_FLAG_BLOCKED; 11659 break; 11660 case CTL_ACTION_PASS: 11661 case CTL_ACTION_SKIP: 11662 pending_io->io_hdr.flags |= 11663 CTL_FLAG_IS_WAS_ON_RTR; 11664 ctl_enqueue_rtr(pending_io); 11665 break; 11666 case CTL_ACTION_OVERLAP: 11667 ctl_set_overlapped_cmd( 11668 (struct ctl_scsiio *)pending_io); 11669 ctl_done(pending_io); 11670 break; 11671 case CTL_ACTION_OVERLAP_TAG: 11672 ctl_set_overlapped_tag( 11673 (struct ctl_scsiio *)pending_io, 11674 pending_io->scsiio.tag_num & 0xff); 11675 ctl_done(pending_io); 11676 break; 11677 case CTL_ACTION_ERROR: 11678 default: 11679 ctl_set_internal_failure( 11680 (struct ctl_scsiio *)pending_io, 11681 0, // sks_valid 11682 0); //retry count 11683 ctl_done(pending_io); 11684 break; 11685 } 11686 } 11687 11688 /* 11689 * Build Unit Attention 11690 */ 11691 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 11692 lun->pending_ua[i] |= 11693 CTL_UA_ASYM_ACC_CHANGE; 11694 } 11695 } else { 11696 panic("Unhandled HA mode failover, LUN flags = %#x, " 11697 "ha_mode = #%x", lun->flags, ctl_softc->ha_mode); 11698 } 11699 } 11700 ctl_pause_rtr = 0; 11701 mtx_unlock(&ctl_softc->ctl_lock); 11702} 11703 11704static int 11705ctl_scsiio_precheck(struct ctl_softc *ctl_softc, struct ctl_scsiio *ctsio) 11706{ 11707 struct ctl_lun *lun; 11708 const struct ctl_cmd_entry *entry; 11709 uint32_t initidx, targ_lun; 11710 int retval; 11711 11712 retval = 0; 11713 11714 lun = NULL; 11715 11716 targ_lun = ctsio->io_hdr.nexus.targ_mapped_lun; 11717 if ((targ_lun < CTL_MAX_LUNS) 11718 && (ctl_softc->ctl_luns[targ_lun] != NULL)) { 11719 lun = ctl_softc->ctl_luns[targ_lun]; 11720 /* 11721 * If the LUN is invalid, pretend that it doesn't exist. 11722 * It will go away as soon as all pending I/O has been 11723 * completed. 11724 */ 11725 if (lun->flags & CTL_LUN_DISABLED) { 11726 lun = NULL; 11727 } else { 11728 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr = lun; 11729 ctsio->io_hdr.ctl_private[CTL_PRIV_BACKEND_LUN].ptr = 11730 lun->be_lun; 11731 if (lun->be_lun->lun_type == T_PROCESSOR) { 11732 ctsio->io_hdr.flags |= CTL_FLAG_CONTROL_DEV; 11733 } 11734 11735 /* 11736 * Every I/O goes into the OOA queue for a 11737 * particular LUN, and stays there until completion. 11738 */ 11739 mtx_lock(&lun->lun_lock); 11740 TAILQ_INSERT_TAIL(&lun->ooa_queue, &ctsio->io_hdr, 11741 ooa_links); 11742 } 11743 } else { 11744 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr = NULL; 11745 ctsio->io_hdr.ctl_private[CTL_PRIV_BACKEND_LUN].ptr = NULL; 11746 } 11747 11748 /* Get command entry and return error if it is unsuppotyed. */ 11749 entry = ctl_validate_command(ctsio); 11750 if (entry == NULL) { 11751 if (lun) 11752 mtx_unlock(&lun->lun_lock); 11753 return (retval); 11754 } 11755 11756 ctsio->io_hdr.flags &= ~CTL_FLAG_DATA_MASK; 11757 ctsio->io_hdr.flags |= entry->flags & CTL_FLAG_DATA_MASK; 11758 11759 /* 11760 * Check to see whether we can send this command to LUNs that don't 11761 * exist. This should pretty much only be the case for inquiry 11762 * and request sense. Further checks, below, really require having 11763 * a LUN, so we can't really check the command anymore. Just put 11764 * it on the rtr queue. 11765 */ 11766 if (lun == NULL) { 11767 if (entry->flags & CTL_CMD_FLAG_OK_ON_ALL_LUNS) { 11768 ctsio->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 11769 ctl_enqueue_rtr((union ctl_io *)ctsio); 11770 return (retval); 11771 } 11772 11773 ctl_set_unsupported_lun(ctsio); 11774 ctl_done((union ctl_io *)ctsio); 11775 CTL_DEBUG_PRINT(("ctl_scsiio_precheck: bailing out due to invalid LUN\n")); 11776 return (retval); 11777 } else { 11778 /* 11779 * Make sure we support this particular command on this LUN. 11780 * e.g., we don't support writes to the control LUN. 11781 */ 11782 if (!ctl_cmd_applicable(lun->be_lun->lun_type, entry)) { 11783 mtx_unlock(&lun->lun_lock); 11784 ctl_set_invalid_opcode(ctsio); 11785 ctl_done((union ctl_io *)ctsio); 11786 return (retval); 11787 } 11788 } 11789 11790 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 11791 11792#ifdef CTL_WITH_CA 11793 /* 11794 * If we've got a request sense, it'll clear the contingent 11795 * allegiance condition. Otherwise, if we have a CA condition for 11796 * this initiator, clear it, because it sent down a command other 11797 * than request sense. 11798 */ 11799 if ((ctsio->cdb[0] != REQUEST_SENSE) 11800 && (ctl_is_set(lun->have_ca, initidx))) 11801 ctl_clear_mask(lun->have_ca, initidx); 11802#endif 11803 11804 /* 11805 * If the command has this flag set, it handles its own unit 11806 * attention reporting, we shouldn't do anything. Otherwise we 11807 * check for any pending unit attentions, and send them back to the 11808 * initiator. We only do this when a command initially comes in, 11809 * not when we pull it off the blocked queue. 11810 * 11811 * According to SAM-3, section 5.3.2, the order that things get 11812 * presented back to the host is basically unit attentions caused 11813 * by some sort of reset event, busy status, reservation conflicts 11814 * or task set full, and finally any other status. 11815 * 11816 * One issue here is that some of the unit attentions we report 11817 * don't fall into the "reset" category (e.g. "reported luns data 11818 * has changed"). So reporting it here, before the reservation 11819 * check, may be technically wrong. I guess the only thing to do 11820 * would be to check for and report the reset events here, and then 11821 * check for the other unit attention types after we check for a 11822 * reservation conflict. 11823 * 11824 * XXX KDM need to fix this 11825 */ 11826 if ((entry->flags & CTL_CMD_FLAG_NO_SENSE) == 0) { 11827 ctl_ua_type ua_type; 11828 11829 if (lun->pending_ua[initidx] != CTL_UA_NONE) { 11830 scsi_sense_data_type sense_format; 11831 11832 if (lun != NULL) 11833 sense_format = (lun->flags & 11834 CTL_LUN_SENSE_DESC) ? SSD_TYPE_DESC : 11835 SSD_TYPE_FIXED; 11836 else 11837 sense_format = SSD_TYPE_FIXED; 11838 11839 ua_type = ctl_build_ua(&lun->pending_ua[initidx], 11840 &ctsio->sense_data, sense_format); 11841 if (ua_type != CTL_UA_NONE) { 11842 ctsio->scsi_status = SCSI_STATUS_CHECK_COND; 11843 ctsio->io_hdr.status = CTL_SCSI_ERROR | 11844 CTL_AUTOSENSE; 11845 ctsio->sense_len = SSD_FULL_SIZE; 11846 mtx_unlock(&lun->lun_lock); 11847 ctl_done((union ctl_io *)ctsio); 11848 return (retval); 11849 } 11850 } 11851 } 11852 11853 11854 if (ctl_scsiio_lun_check(ctl_softc, lun, entry, ctsio) != 0) { 11855 mtx_unlock(&lun->lun_lock); 11856 ctl_done((union ctl_io *)ctsio); 11857 return (retval); 11858 } 11859 11860 /* 11861 * XXX CHD this is where we want to send IO to other side if 11862 * this LUN is secondary on this SC. We will need to make a copy 11863 * of the IO and flag the IO on this side as SENT_2OTHER and the flag 11864 * the copy we send as FROM_OTHER. 11865 * We also need to stuff the address of the original IO so we can 11866 * find it easily. Something similar will need be done on the other 11867 * side so when we are done we can find the copy. 11868 */ 11869 if ((lun->flags & CTL_LUN_PRIMARY_SC) == 0) { 11870 union ctl_ha_msg msg_info; 11871 int isc_retval; 11872 11873 ctsio->io_hdr.flags |= CTL_FLAG_SENT_2OTHER_SC; 11874 11875 msg_info.hdr.msg_type = CTL_MSG_SERIALIZE; 11876 msg_info.hdr.original_sc = (union ctl_io *)ctsio; 11877#if 0 11878 printf("1. ctsio %p\n", ctsio); 11879#endif 11880 msg_info.hdr.serializing_sc = NULL; 11881 msg_info.hdr.nexus = ctsio->io_hdr.nexus; 11882 msg_info.scsi.tag_num = ctsio->tag_num; 11883 msg_info.scsi.tag_type = ctsio->tag_type; 11884 memcpy(msg_info.scsi.cdb, ctsio->cdb, CTL_MAX_CDBLEN); 11885 11886 ctsio->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 11887 11888 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 11889 (void *)&msg_info, sizeof(msg_info), 0)) > 11890 CTL_HA_STATUS_SUCCESS) { 11891 printf("CTL:precheck, ctl_ha_msg_send returned %d\n", 11892 isc_retval); 11893 printf("CTL:opcode is %x\n", ctsio->cdb[0]); 11894 } else { 11895#if 0 11896 printf("CTL:Precheck sent msg, opcode is %x\n",opcode); 11897#endif 11898 } 11899 11900 /* 11901 * XXX KDM this I/O is off the incoming queue, but hasn't 11902 * been inserted on any other queue. We may need to come 11903 * up with a holding queue while we wait for serialization 11904 * so that we have an idea of what we're waiting for from 11905 * the other side. 11906 */ 11907 mtx_unlock(&lun->lun_lock); 11908 return (retval); 11909 } 11910 11911 switch (ctl_check_ooa(lun, (union ctl_io *)ctsio, 11912 (union ctl_io *)TAILQ_PREV(&ctsio->io_hdr, 11913 ctl_ooaq, ooa_links))) { 11914 case CTL_ACTION_BLOCK: 11915 ctsio->io_hdr.flags |= CTL_FLAG_BLOCKED; 11916 TAILQ_INSERT_TAIL(&lun->blocked_queue, &ctsio->io_hdr, 11917 blocked_links); 11918 mtx_unlock(&lun->lun_lock); 11919 return (retval); 11920 case CTL_ACTION_PASS: 11921 case CTL_ACTION_SKIP: 11922 ctsio->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 11923 mtx_unlock(&lun->lun_lock); 11924 ctl_enqueue_rtr((union ctl_io *)ctsio); 11925 break; 11926 case CTL_ACTION_OVERLAP: 11927 mtx_unlock(&lun->lun_lock); 11928 ctl_set_overlapped_cmd(ctsio); 11929 ctl_done((union ctl_io *)ctsio); 11930 break; 11931 case CTL_ACTION_OVERLAP_TAG: 11932 mtx_unlock(&lun->lun_lock); 11933 ctl_set_overlapped_tag(ctsio, ctsio->tag_num & 0xff); 11934 ctl_done((union ctl_io *)ctsio); 11935 break; 11936 case CTL_ACTION_ERROR: 11937 default: 11938 mtx_unlock(&lun->lun_lock); 11939 ctl_set_internal_failure(ctsio, 11940 /*sks_valid*/ 0, 11941 /*retry_count*/ 0); 11942 ctl_done((union ctl_io *)ctsio); 11943 break; 11944 } 11945 return (retval); 11946} 11947 11948const struct ctl_cmd_entry * 11949ctl_get_cmd_entry(struct ctl_scsiio *ctsio, int *sa) 11950{ 11951 const struct ctl_cmd_entry *entry; 11952 int service_action; 11953 11954 entry = &ctl_cmd_table[ctsio->cdb[0]]; 11955 if (sa) 11956 *sa = ((entry->flags & CTL_CMD_FLAG_SA5) != 0); 11957 if (entry->flags & CTL_CMD_FLAG_SA5) { 11958 service_action = ctsio->cdb[1] & SERVICE_ACTION_MASK; 11959 entry = &((const struct ctl_cmd_entry *) 11960 entry->execute)[service_action]; 11961 } 11962 return (entry); 11963} 11964 11965const struct ctl_cmd_entry * 11966ctl_validate_command(struct ctl_scsiio *ctsio) 11967{ 11968 const struct ctl_cmd_entry *entry; 11969 int i, sa; 11970 uint8_t diff; 11971 11972 entry = ctl_get_cmd_entry(ctsio, &sa); 11973 if (entry->execute == NULL) { 11974 if (sa) 11975 ctl_set_invalid_field(ctsio, 11976 /*sks_valid*/ 1, 11977 /*command*/ 1, 11978 /*field*/ 1, 11979 /*bit_valid*/ 1, 11980 /*bit*/ 4); 11981 else 11982 ctl_set_invalid_opcode(ctsio); 11983 ctl_done((union ctl_io *)ctsio); 11984 return (NULL); 11985 } 11986 KASSERT(entry->length > 0, 11987 ("Not defined length for command 0x%02x/0x%02x", 11988 ctsio->cdb[0], ctsio->cdb[1])); 11989 for (i = 1; i < entry->length; i++) { 11990 diff = ctsio->cdb[i] & ~entry->usage[i - 1]; 11991 if (diff == 0) 11992 continue; 11993 ctl_set_invalid_field(ctsio, 11994 /*sks_valid*/ 1, 11995 /*command*/ 1, 11996 /*field*/ i, 11997 /*bit_valid*/ 1, 11998 /*bit*/ fls(diff) - 1); 11999 ctl_done((union ctl_io *)ctsio); 12000 return (NULL); 12001 } 12002 return (entry); 12003} 12004 12005static int 12006ctl_cmd_applicable(uint8_t lun_type, const struct ctl_cmd_entry *entry) 12007{ 12008 12009 switch (lun_type) { 12010 case T_PROCESSOR: 12011 if (((entry->flags & CTL_CMD_FLAG_OK_ON_PROC) == 0) && 12012 ((entry->flags & CTL_CMD_FLAG_OK_ON_ALL_LUNS) == 0)) 12013 return (0); 12014 break; 12015 case T_DIRECT: 12016 if (((entry->flags & CTL_CMD_FLAG_OK_ON_SLUN) == 0) && 12017 ((entry->flags & CTL_CMD_FLAG_OK_ON_ALL_LUNS) == 0)) 12018 return (0); 12019 break; 12020 default: 12021 return (0); 12022 } 12023 return (1); 12024} 12025 12026static int 12027ctl_scsiio(struct ctl_scsiio *ctsio) 12028{ 12029 int retval; 12030 const struct ctl_cmd_entry *entry; 12031 12032 retval = CTL_RETVAL_COMPLETE; 12033 12034 CTL_DEBUG_PRINT(("ctl_scsiio cdb[0]=%02X\n", ctsio->cdb[0])); 12035 12036 entry = ctl_get_cmd_entry(ctsio, NULL); 12037 12038 /* 12039 * If this I/O has been aborted, just send it straight to 12040 * ctl_done() without executing it. 12041 */ 12042 if (ctsio->io_hdr.flags & CTL_FLAG_ABORT) { 12043 ctl_done((union ctl_io *)ctsio); 12044 goto bailout; 12045 } 12046 12047 /* 12048 * All the checks should have been handled by ctl_scsiio_precheck(). 12049 * We should be clear now to just execute the I/O. 12050 */ 12051 retval = entry->execute(ctsio); 12052 12053bailout: 12054 return (retval); 12055} 12056 12057/* 12058 * Since we only implement one target right now, a bus reset simply resets 12059 * our single target. 12060 */ 12061static int 12062ctl_bus_reset(struct ctl_softc *ctl_softc, union ctl_io *io) 12063{ 12064 return(ctl_target_reset(ctl_softc, io, CTL_UA_BUS_RESET)); 12065} 12066 12067static int 12068ctl_target_reset(struct ctl_softc *ctl_softc, union ctl_io *io, 12069 ctl_ua_type ua_type) 12070{ 12071 struct ctl_lun *lun; 12072 int retval; 12073 12074 if (!(io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)) { 12075 union ctl_ha_msg msg_info; 12076 12077 io->io_hdr.flags |= CTL_FLAG_SENT_2OTHER_SC; 12078 msg_info.hdr.nexus = io->io_hdr.nexus; 12079 if (ua_type==CTL_UA_TARG_RESET) 12080 msg_info.task.task_action = CTL_TASK_TARGET_RESET; 12081 else 12082 msg_info.task.task_action = CTL_TASK_BUS_RESET; 12083 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 12084 msg_info.hdr.original_sc = NULL; 12085 msg_info.hdr.serializing_sc = NULL; 12086 if (CTL_HA_STATUS_SUCCESS != ctl_ha_msg_send(CTL_HA_CHAN_CTL, 12087 (void *)&msg_info, sizeof(msg_info), 0)) { 12088 } 12089 } 12090 retval = 0; 12091 12092 mtx_lock(&ctl_softc->ctl_lock); 12093 STAILQ_FOREACH(lun, &ctl_softc->lun_list, links) 12094 retval += ctl_lun_reset(lun, io, ua_type); 12095 mtx_unlock(&ctl_softc->ctl_lock); 12096 12097 return (retval); 12098} 12099 12100/* 12101 * The LUN should always be set. The I/O is optional, and is used to 12102 * distinguish between I/Os sent by this initiator, and by other 12103 * initiators. We set unit attention for initiators other than this one. 12104 * SAM-3 is vague on this point. It does say that a unit attention should 12105 * be established for other initiators when a LUN is reset (see section 12106 * 5.7.3), but it doesn't specifically say that the unit attention should 12107 * be established for this particular initiator when a LUN is reset. Here 12108 * is the relevant text, from SAM-3 rev 8: 12109 * 12110 * 5.7.2 When a SCSI initiator port aborts its own tasks 12111 * 12112 * When a SCSI initiator port causes its own task(s) to be aborted, no 12113 * notification that the task(s) have been aborted shall be returned to 12114 * the SCSI initiator port other than the completion response for the 12115 * command or task management function action that caused the task(s) to 12116 * be aborted and notification(s) associated with related effects of the 12117 * action (e.g., a reset unit attention condition). 12118 * 12119 * XXX KDM for now, we're setting unit attention for all initiators. 12120 */ 12121static int 12122ctl_lun_reset(struct ctl_lun *lun, union ctl_io *io, ctl_ua_type ua_type) 12123{ 12124 union ctl_io *xio; 12125#if 0 12126 uint32_t initindex; 12127#endif 12128 int i; 12129 12130 mtx_lock(&lun->lun_lock); 12131 /* 12132 * Run through the OOA queue and abort each I/O. 12133 */ 12134#if 0 12135 TAILQ_FOREACH((struct ctl_io_hdr *)xio, &lun->ooa_queue, ooa_links) { 12136#endif 12137 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 12138 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 12139 xio->io_hdr.flags |= CTL_FLAG_ABORT | CTL_FLAG_ABORT_STATUS; 12140 } 12141 12142 /* 12143 * This version sets unit attention for every 12144 */ 12145#if 0 12146 initindex = ctl_get_initindex(&io->io_hdr.nexus); 12147 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 12148 if (initindex == i) 12149 continue; 12150 lun->pending_ua[i] |= ua_type; 12151 } 12152#endif 12153 12154 /* 12155 * A reset (any kind, really) clears reservations established with 12156 * RESERVE/RELEASE. It does not clear reservations established 12157 * with PERSISTENT RESERVE OUT, but we don't support that at the 12158 * moment anyway. See SPC-2, section 5.6. SPC-3 doesn't address 12159 * reservations made with the RESERVE/RELEASE commands, because 12160 * those commands are obsolete in SPC-3. 12161 */ 12162 lun->flags &= ~CTL_LUN_RESERVED; 12163 12164 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 12165#ifdef CTL_WITH_CA 12166 ctl_clear_mask(lun->have_ca, i); 12167#endif 12168 lun->pending_ua[i] |= ua_type; 12169 } 12170 mtx_unlock(&lun->lun_lock); 12171 12172 return (0); 12173} 12174 12175static void 12176ctl_abort_tasks_lun(struct ctl_lun *lun, uint32_t targ_port, uint32_t init_id, 12177 int other_sc) 12178{ 12179 union ctl_io *xio; 12180 12181 mtx_assert(&lun->lun_lock, MA_OWNED); 12182 12183 /* 12184 * Run through the OOA queue and attempt to find the given I/O. 12185 * The target port, initiator ID, tag type and tag number have to 12186 * match the values that we got from the initiator. If we have an 12187 * untagged command to abort, simply abort the first untagged command 12188 * we come to. We only allow one untagged command at a time of course. 12189 */ 12190 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 12191 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 12192 12193 if ((targ_port == UINT32_MAX || 12194 targ_port == xio->io_hdr.nexus.targ_port) && 12195 (init_id == UINT32_MAX || 12196 init_id == xio->io_hdr.nexus.initid.id)) { 12197 if (targ_port != xio->io_hdr.nexus.targ_port || 12198 init_id != xio->io_hdr.nexus.initid.id) 12199 xio->io_hdr.flags |= CTL_FLAG_ABORT_STATUS; 12200 xio->io_hdr.flags |= CTL_FLAG_ABORT; 12201 if (!other_sc && !(lun->flags & CTL_LUN_PRIMARY_SC)) { 12202 union ctl_ha_msg msg_info; 12203 12204 msg_info.hdr.nexus = xio->io_hdr.nexus; 12205 msg_info.task.task_action = CTL_TASK_ABORT_TASK; 12206 msg_info.task.tag_num = xio->scsiio.tag_num; 12207 msg_info.task.tag_type = xio->scsiio.tag_type; 12208 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 12209 msg_info.hdr.original_sc = NULL; 12210 msg_info.hdr.serializing_sc = NULL; 12211 ctl_ha_msg_send(CTL_HA_CHAN_CTL, 12212 (void *)&msg_info, sizeof(msg_info), 0); 12213 } 12214 } 12215 } 12216} 12217 12218static int 12219ctl_abort_task_set(union ctl_io *io) 12220{ 12221 struct ctl_softc *softc = control_softc; 12222 struct ctl_lun *lun; 12223 uint32_t targ_lun; 12224 12225 /* 12226 * Look up the LUN. 12227 */ 12228 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12229 mtx_lock(&softc->ctl_lock); 12230 if ((targ_lun < CTL_MAX_LUNS) && (softc->ctl_luns[targ_lun] != NULL)) 12231 lun = softc->ctl_luns[targ_lun]; 12232 else { 12233 mtx_unlock(&softc->ctl_lock); 12234 return (1); 12235 } 12236 12237 mtx_lock(&lun->lun_lock); 12238 mtx_unlock(&softc->ctl_lock); 12239 if (io->taskio.task_action == CTL_TASK_ABORT_TASK_SET) { 12240 ctl_abort_tasks_lun(lun, io->io_hdr.nexus.targ_port, 12241 io->io_hdr.nexus.initid.id, 12242 (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) != 0); 12243 } else { /* CTL_TASK_CLEAR_TASK_SET */ 12244 ctl_abort_tasks_lun(lun, UINT32_MAX, UINT32_MAX, 12245 (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) != 0); 12246 } 12247 mtx_unlock(&lun->lun_lock); 12248 return (0); 12249} 12250 12251static int 12252ctl_i_t_nexus_reset(union ctl_io *io) 12253{ 12254 struct ctl_softc *softc = control_softc; 12255 struct ctl_lun *lun; 12256 uint32_t initindex, residx; 12257 12258 initindex = ctl_get_initindex(&io->io_hdr.nexus); 12259 residx = ctl_get_resindex(&io->io_hdr.nexus); 12260 mtx_lock(&softc->ctl_lock); 12261 STAILQ_FOREACH(lun, &softc->lun_list, links) { 12262 mtx_lock(&lun->lun_lock); 12263 ctl_abort_tasks_lun(lun, io->io_hdr.nexus.targ_port, 12264 io->io_hdr.nexus.initid.id, 12265 (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) != 0); 12266#ifdef CTL_WITH_CA 12267 ctl_clear_mask(lun->have_ca, initindex); 12268#endif 12269 if ((lun->flags & CTL_LUN_RESERVED) && (lun->res_idx == residx)) 12270 lun->flags &= ~CTL_LUN_RESERVED; 12271 lun->pending_ua[initindex] |= CTL_UA_I_T_NEXUS_LOSS; 12272 mtx_unlock(&lun->lun_lock); 12273 } 12274 mtx_unlock(&softc->ctl_lock); 12275 return (0); 12276} 12277 12278static int 12279ctl_abort_task(union ctl_io *io) 12280{ 12281 union ctl_io *xio; 12282 struct ctl_lun *lun; 12283 struct ctl_softc *ctl_softc; 12284#if 0 12285 struct sbuf sb; 12286 char printbuf[128]; 12287#endif 12288 int found; 12289 uint32_t targ_lun; 12290 12291 ctl_softc = control_softc; 12292 found = 0; 12293 12294 /* 12295 * Look up the LUN. 12296 */ 12297 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12298 mtx_lock(&ctl_softc->ctl_lock); 12299 if ((targ_lun < CTL_MAX_LUNS) 12300 && (ctl_softc->ctl_luns[targ_lun] != NULL)) 12301 lun = ctl_softc->ctl_luns[targ_lun]; 12302 else { 12303 mtx_unlock(&ctl_softc->ctl_lock); 12304 return (1); 12305 } 12306 12307#if 0 12308 printf("ctl_abort_task: called for lun %lld, tag %d type %d\n", 12309 lun->lun, io->taskio.tag_num, io->taskio.tag_type); 12310#endif 12311 12312 mtx_lock(&lun->lun_lock); 12313 mtx_unlock(&ctl_softc->ctl_lock); 12314 /* 12315 * Run through the OOA queue and attempt to find the given I/O. 12316 * The target port, initiator ID, tag type and tag number have to 12317 * match the values that we got from the initiator. If we have an 12318 * untagged command to abort, simply abort the first untagged command 12319 * we come to. We only allow one untagged command at a time of course. 12320 */ 12321#if 0 12322 TAILQ_FOREACH((struct ctl_io_hdr *)xio, &lun->ooa_queue, ooa_links) { 12323#endif 12324 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 12325 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 12326#if 0 12327 sbuf_new(&sb, printbuf, sizeof(printbuf), SBUF_FIXEDLEN); 12328 12329 sbuf_printf(&sb, "LUN %lld tag %d type %d%s%s%s%s: ", 12330 lun->lun, xio->scsiio.tag_num, 12331 xio->scsiio.tag_type, 12332 (xio->io_hdr.blocked_links.tqe_prev 12333 == NULL) ? "" : " BLOCKED", 12334 (xio->io_hdr.flags & 12335 CTL_FLAG_DMA_INPROG) ? " DMA" : "", 12336 (xio->io_hdr.flags & 12337 CTL_FLAG_ABORT) ? " ABORT" : "", 12338 (xio->io_hdr.flags & 12339 CTL_FLAG_IS_WAS_ON_RTR ? " RTR" : "")); 12340 ctl_scsi_command_string(&xio->scsiio, NULL, &sb); 12341 sbuf_finish(&sb); 12342 printf("%s\n", sbuf_data(&sb)); 12343#endif 12344 12345 if ((xio->io_hdr.nexus.targ_port == io->io_hdr.nexus.targ_port) 12346 && (xio->io_hdr.nexus.initid.id == 12347 io->io_hdr.nexus.initid.id)) { 12348 /* 12349 * If the abort says that the task is untagged, the 12350 * task in the queue must be untagged. Otherwise, 12351 * we just check to see whether the tag numbers 12352 * match. This is because the QLogic firmware 12353 * doesn't pass back the tag type in an abort 12354 * request. 12355 */ 12356#if 0 12357 if (((xio->scsiio.tag_type == CTL_TAG_UNTAGGED) 12358 && (io->taskio.tag_type == CTL_TAG_UNTAGGED)) 12359 || (xio->scsiio.tag_num == io->taskio.tag_num)) { 12360#endif 12361 /* 12362 * XXX KDM we've got problems with FC, because it 12363 * doesn't send down a tag type with aborts. So we 12364 * can only really go by the tag number... 12365 * This may cause problems with parallel SCSI. 12366 * Need to figure that out!! 12367 */ 12368 if (xio->scsiio.tag_num == io->taskio.tag_num) { 12369 xio->io_hdr.flags |= CTL_FLAG_ABORT; 12370 found = 1; 12371 if ((io->io_hdr.flags & 12372 CTL_FLAG_FROM_OTHER_SC) == 0 && 12373 !(lun->flags & CTL_LUN_PRIMARY_SC)) { 12374 union ctl_ha_msg msg_info; 12375 12376 io->io_hdr.flags |= 12377 CTL_FLAG_SENT_2OTHER_SC; 12378 msg_info.hdr.nexus = io->io_hdr.nexus; 12379 msg_info.task.task_action = 12380 CTL_TASK_ABORT_TASK; 12381 msg_info.task.tag_num = 12382 io->taskio.tag_num; 12383 msg_info.task.tag_type = 12384 io->taskio.tag_type; 12385 msg_info.hdr.msg_type = 12386 CTL_MSG_MANAGE_TASKS; 12387 msg_info.hdr.original_sc = NULL; 12388 msg_info.hdr.serializing_sc = NULL; 12389#if 0 12390 printf("Sent Abort to other side\n"); 12391#endif 12392 if (CTL_HA_STATUS_SUCCESS != 12393 ctl_ha_msg_send(CTL_HA_CHAN_CTL, 12394 (void *)&msg_info, 12395 sizeof(msg_info), 0)) { 12396 } 12397 } 12398#if 0 12399 printf("ctl_abort_task: found I/O to abort\n"); 12400#endif 12401 break; 12402 } 12403 } 12404 } 12405 mtx_unlock(&lun->lun_lock); 12406 12407 if (found == 0) { 12408 /* 12409 * This isn't really an error. It's entirely possible for 12410 * the abort and command completion to cross on the wire. 12411 * This is more of an informative/diagnostic error. 12412 */ 12413#if 0 12414 printf("ctl_abort_task: ABORT sent for nonexistent I/O: " 12415 "%d:%d:%d:%d tag %d type %d\n", 12416 io->io_hdr.nexus.initid.id, 12417 io->io_hdr.nexus.targ_port, 12418 io->io_hdr.nexus.targ_target.id, 12419 io->io_hdr.nexus.targ_lun, io->taskio.tag_num, 12420 io->taskio.tag_type); 12421#endif 12422 } 12423 return (0); 12424} 12425 12426static void 12427ctl_run_task(union ctl_io *io) 12428{ 12429 struct ctl_softc *ctl_softc = control_softc; 12430 int retval = 1; 12431 const char *task_desc; 12432 12433 CTL_DEBUG_PRINT(("ctl_run_task\n")); 12434 12435 KASSERT(io->io_hdr.io_type == CTL_IO_TASK, 12436 ("ctl_run_task: Unextected io_type %d\n", 12437 io->io_hdr.io_type)); 12438 12439 task_desc = ctl_scsi_task_string(&io->taskio); 12440 if (task_desc != NULL) { 12441#ifdef NEEDTOPORT 12442 csevent_log(CSC_CTL | CSC_SHELF_SW | 12443 CTL_TASK_REPORT, 12444 csevent_LogType_Trace, 12445 csevent_Severity_Information, 12446 csevent_AlertLevel_Green, 12447 csevent_FRU_Firmware, 12448 csevent_FRU_Unknown, 12449 "CTL: received task: %s",task_desc); 12450#endif 12451 } else { 12452#ifdef NEEDTOPORT 12453 csevent_log(CSC_CTL | CSC_SHELF_SW | 12454 CTL_TASK_REPORT, 12455 csevent_LogType_Trace, 12456 csevent_Severity_Information, 12457 csevent_AlertLevel_Green, 12458 csevent_FRU_Firmware, 12459 csevent_FRU_Unknown, 12460 "CTL: received unknown task " 12461 "type: %d (%#x)", 12462 io->taskio.task_action, 12463 io->taskio.task_action); 12464#endif 12465 } 12466 switch (io->taskio.task_action) { 12467 case CTL_TASK_ABORT_TASK: 12468 retval = ctl_abort_task(io); 12469 break; 12470 case CTL_TASK_ABORT_TASK_SET: 12471 case CTL_TASK_CLEAR_TASK_SET: 12472 retval = ctl_abort_task_set(io); 12473 break; 12474 case CTL_TASK_CLEAR_ACA: 12475 break; 12476 case CTL_TASK_I_T_NEXUS_RESET: 12477 retval = ctl_i_t_nexus_reset(io); 12478 break; 12479 case CTL_TASK_LUN_RESET: { 12480 struct ctl_lun *lun; 12481 uint32_t targ_lun; 12482 12483 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12484 mtx_lock(&ctl_softc->ctl_lock); 12485 if ((targ_lun < CTL_MAX_LUNS) 12486 && (ctl_softc->ctl_luns[targ_lun] != NULL)) 12487 lun = ctl_softc->ctl_luns[targ_lun]; 12488 else { 12489 mtx_unlock(&ctl_softc->ctl_lock); 12490 retval = 1; 12491 break; 12492 } 12493 12494 if (!(io->io_hdr.flags & 12495 CTL_FLAG_FROM_OTHER_SC)) { 12496 union ctl_ha_msg msg_info; 12497 12498 io->io_hdr.flags |= 12499 CTL_FLAG_SENT_2OTHER_SC; 12500 msg_info.hdr.msg_type = 12501 CTL_MSG_MANAGE_TASKS; 12502 msg_info.hdr.nexus = io->io_hdr.nexus; 12503 msg_info.task.task_action = 12504 CTL_TASK_LUN_RESET; 12505 msg_info.hdr.original_sc = NULL; 12506 msg_info.hdr.serializing_sc = NULL; 12507 if (CTL_HA_STATUS_SUCCESS != 12508 ctl_ha_msg_send(CTL_HA_CHAN_CTL, 12509 (void *)&msg_info, 12510 sizeof(msg_info), 0)) { 12511 } 12512 } 12513 12514 retval = ctl_lun_reset(lun, io, 12515 CTL_UA_LUN_RESET); 12516 mtx_unlock(&ctl_softc->ctl_lock); 12517 break; 12518 } 12519 case CTL_TASK_TARGET_RESET: 12520 retval = ctl_target_reset(ctl_softc, io, CTL_UA_TARG_RESET); 12521 break; 12522 case CTL_TASK_BUS_RESET: 12523 retval = ctl_bus_reset(ctl_softc, io); 12524 break; 12525 case CTL_TASK_PORT_LOGIN: 12526 break; 12527 case CTL_TASK_PORT_LOGOUT: 12528 break; 12529 default: 12530 printf("ctl_run_task: got unknown task management event %d\n", 12531 io->taskio.task_action); 12532 break; 12533 } 12534 if (retval == 0) 12535 io->io_hdr.status = CTL_SUCCESS; 12536 else 12537 io->io_hdr.status = CTL_ERROR; 12538 ctl_done(io); 12539} 12540 12541/* 12542 * For HA operation. Handle commands that come in from the other 12543 * controller. 12544 */ 12545static void 12546ctl_handle_isc(union ctl_io *io) 12547{ 12548 int free_io; 12549 struct ctl_lun *lun; 12550 struct ctl_softc *ctl_softc; 12551 uint32_t targ_lun; 12552 12553 ctl_softc = control_softc; 12554 12555 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12556 lun = ctl_softc->ctl_luns[targ_lun]; 12557 12558 switch (io->io_hdr.msg_type) { 12559 case CTL_MSG_SERIALIZE: 12560 free_io = ctl_serialize_other_sc_cmd(&io->scsiio); 12561 break; 12562 case CTL_MSG_R2R: { 12563 const struct ctl_cmd_entry *entry; 12564 12565 /* 12566 * This is only used in SER_ONLY mode. 12567 */ 12568 free_io = 0; 12569 entry = ctl_get_cmd_entry(&io->scsiio, NULL); 12570 mtx_lock(&lun->lun_lock); 12571 if (ctl_scsiio_lun_check(ctl_softc, lun, 12572 entry, (struct ctl_scsiio *)io) != 0) { 12573 mtx_unlock(&lun->lun_lock); 12574 ctl_done(io); 12575 break; 12576 } 12577 io->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 12578 mtx_unlock(&lun->lun_lock); 12579 ctl_enqueue_rtr(io); 12580 break; 12581 } 12582 case CTL_MSG_FINISH_IO: 12583 if (ctl_softc->ha_mode == CTL_HA_MODE_XFER) { 12584 free_io = 0; 12585 ctl_done(io); 12586 } else { 12587 free_io = 1; 12588 mtx_lock(&lun->lun_lock); 12589 TAILQ_REMOVE(&lun->ooa_queue, &io->io_hdr, 12590 ooa_links); 12591 ctl_check_blocked(lun); 12592 mtx_unlock(&lun->lun_lock); 12593 } 12594 break; 12595 case CTL_MSG_PERS_ACTION: 12596 ctl_hndl_per_res_out_on_other_sc( 12597 (union ctl_ha_msg *)&io->presio.pr_msg); 12598 free_io = 1; 12599 break; 12600 case CTL_MSG_BAD_JUJU: 12601 free_io = 0; 12602 ctl_done(io); 12603 break; 12604 case CTL_MSG_DATAMOVE: 12605 /* Only used in XFER mode */ 12606 free_io = 0; 12607 ctl_datamove_remote(io); 12608 break; 12609 case CTL_MSG_DATAMOVE_DONE: 12610 /* Only used in XFER mode */ 12611 free_io = 0; 12612 io->scsiio.be_move_done(io); 12613 break; 12614 default: 12615 free_io = 1; 12616 printf("%s: Invalid message type %d\n", 12617 __func__, io->io_hdr.msg_type); 12618 break; 12619 } 12620 if (free_io) 12621 ctl_free_io(io); 12622 12623} 12624 12625 12626/* 12627 * Returns the match type in the case of a match, or CTL_LUN_PAT_NONE if 12628 * there is no match. 12629 */ 12630static ctl_lun_error_pattern 12631ctl_cmd_pattern_match(struct ctl_scsiio *ctsio, struct ctl_error_desc *desc) 12632{ 12633 const struct ctl_cmd_entry *entry; 12634 ctl_lun_error_pattern filtered_pattern, pattern; 12635 12636 pattern = desc->error_pattern; 12637 12638 /* 12639 * XXX KDM we need more data passed into this function to match a 12640 * custom pattern, and we actually need to implement custom pattern 12641 * matching. 12642 */ 12643 if (pattern & CTL_LUN_PAT_CMD) 12644 return (CTL_LUN_PAT_CMD); 12645 12646 if ((pattern & CTL_LUN_PAT_MASK) == CTL_LUN_PAT_ANY) 12647 return (CTL_LUN_PAT_ANY); 12648 12649 entry = ctl_get_cmd_entry(ctsio, NULL); 12650 12651 filtered_pattern = entry->pattern & pattern; 12652 12653 /* 12654 * If the user requested specific flags in the pattern (e.g. 12655 * CTL_LUN_PAT_RANGE), make sure the command supports all of those 12656 * flags. 12657 * 12658 * If the user did not specify any flags, it doesn't matter whether 12659 * or not the command supports the flags. 12660 */ 12661 if ((filtered_pattern & ~CTL_LUN_PAT_MASK) != 12662 (pattern & ~CTL_LUN_PAT_MASK)) 12663 return (CTL_LUN_PAT_NONE); 12664 12665 /* 12666 * If the user asked for a range check, see if the requested LBA 12667 * range overlaps with this command's LBA range. 12668 */ 12669 if (filtered_pattern & CTL_LUN_PAT_RANGE) { 12670 uint64_t lba1; 12671 uint64_t len1; 12672 ctl_action action; 12673 int retval; 12674 12675 retval = ctl_get_lba_len((union ctl_io *)ctsio, &lba1, &len1); 12676 if (retval != 0) 12677 return (CTL_LUN_PAT_NONE); 12678 12679 action = ctl_extent_check_lba(lba1, len1, desc->lba_range.lba, 12680 desc->lba_range.len); 12681 /* 12682 * A "pass" means that the LBA ranges don't overlap, so 12683 * this doesn't match the user's range criteria. 12684 */ 12685 if (action == CTL_ACTION_PASS) 12686 return (CTL_LUN_PAT_NONE); 12687 } 12688 12689 return (filtered_pattern); 12690} 12691 12692static void 12693ctl_inject_error(struct ctl_lun *lun, union ctl_io *io) 12694{ 12695 struct ctl_error_desc *desc, *desc2; 12696 12697 mtx_assert(&lun->lun_lock, MA_OWNED); 12698 12699 STAILQ_FOREACH_SAFE(desc, &lun->error_list, links, desc2) { 12700 ctl_lun_error_pattern pattern; 12701 /* 12702 * Check to see whether this particular command matches 12703 * the pattern in the descriptor. 12704 */ 12705 pattern = ctl_cmd_pattern_match(&io->scsiio, desc); 12706 if ((pattern & CTL_LUN_PAT_MASK) == CTL_LUN_PAT_NONE) 12707 continue; 12708 12709 switch (desc->lun_error & CTL_LUN_INJ_TYPE) { 12710 case CTL_LUN_INJ_ABORTED: 12711 ctl_set_aborted(&io->scsiio); 12712 break; 12713 case CTL_LUN_INJ_MEDIUM_ERR: 12714 ctl_set_medium_error(&io->scsiio); 12715 break; 12716 case CTL_LUN_INJ_UA: 12717 /* 29h/00h POWER ON, RESET, OR BUS DEVICE RESET 12718 * OCCURRED */ 12719 ctl_set_ua(&io->scsiio, 0x29, 0x00); 12720 break; 12721 case CTL_LUN_INJ_CUSTOM: 12722 /* 12723 * We're assuming the user knows what he is doing. 12724 * Just copy the sense information without doing 12725 * checks. 12726 */ 12727 bcopy(&desc->custom_sense, &io->scsiio.sense_data, 12728 ctl_min(sizeof(desc->custom_sense), 12729 sizeof(io->scsiio.sense_data))); 12730 io->scsiio.scsi_status = SCSI_STATUS_CHECK_COND; 12731 io->scsiio.sense_len = SSD_FULL_SIZE; 12732 io->io_hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 12733 break; 12734 case CTL_LUN_INJ_NONE: 12735 default: 12736 /* 12737 * If this is an error injection type we don't know 12738 * about, clear the continuous flag (if it is set) 12739 * so it will get deleted below. 12740 */ 12741 desc->lun_error &= ~CTL_LUN_INJ_CONTINUOUS; 12742 break; 12743 } 12744 /* 12745 * By default, each error injection action is a one-shot 12746 */ 12747 if (desc->lun_error & CTL_LUN_INJ_CONTINUOUS) 12748 continue; 12749 12750 STAILQ_REMOVE(&lun->error_list, desc, ctl_error_desc, links); 12751 12752 free(desc, M_CTL); 12753 } 12754} 12755 12756#ifdef CTL_IO_DELAY 12757static void 12758ctl_datamove_timer_wakeup(void *arg) 12759{ 12760 union ctl_io *io; 12761 12762 io = (union ctl_io *)arg; 12763 12764 ctl_datamove(io); 12765} 12766#endif /* CTL_IO_DELAY */ 12767 12768void 12769ctl_datamove(union ctl_io *io) 12770{ 12771 void (*fe_datamove)(union ctl_io *io); 12772 12773 mtx_assert(&control_softc->ctl_lock, MA_NOTOWNED); 12774 12775 CTL_DEBUG_PRINT(("ctl_datamove\n")); 12776 12777#ifdef CTL_TIME_IO 12778 if ((time_uptime - io->io_hdr.start_time) > ctl_time_io_secs) { 12779 char str[256]; 12780 char path_str[64]; 12781 struct sbuf sb; 12782 12783 ctl_scsi_path_string(io, path_str, sizeof(path_str)); 12784 sbuf_new(&sb, str, sizeof(str), SBUF_FIXEDLEN); 12785 12786 sbuf_cat(&sb, path_str); 12787 switch (io->io_hdr.io_type) { 12788 case CTL_IO_SCSI: 12789 ctl_scsi_command_string(&io->scsiio, NULL, &sb); 12790 sbuf_printf(&sb, "\n"); 12791 sbuf_cat(&sb, path_str); 12792 sbuf_printf(&sb, "Tag: 0x%04x, type %d\n", 12793 io->scsiio.tag_num, io->scsiio.tag_type); 12794 break; 12795 case CTL_IO_TASK: 12796 sbuf_printf(&sb, "Task I/O type: %d, Tag: 0x%04x, " 12797 "Tag Type: %d\n", io->taskio.task_action, 12798 io->taskio.tag_num, io->taskio.tag_type); 12799 break; 12800 default: 12801 printf("Invalid CTL I/O type %d\n", io->io_hdr.io_type); 12802 panic("Invalid CTL I/O type %d\n", io->io_hdr.io_type); 12803 break; 12804 } 12805 sbuf_cat(&sb, path_str); 12806 sbuf_printf(&sb, "ctl_datamove: %jd seconds\n", 12807 (intmax_t)time_uptime - io->io_hdr.start_time); 12808 sbuf_finish(&sb); 12809 printf("%s", sbuf_data(&sb)); 12810 } 12811#endif /* CTL_TIME_IO */ 12812 12813#ifdef CTL_IO_DELAY 12814 if (io->io_hdr.flags & CTL_FLAG_DELAY_DONE) { 12815 struct ctl_lun *lun; 12816 12817 lun =(struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 12818 12819 io->io_hdr.flags &= ~CTL_FLAG_DELAY_DONE; 12820 } else { 12821 struct ctl_lun *lun; 12822 12823 lun =(struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 12824 if ((lun != NULL) 12825 && (lun->delay_info.datamove_delay > 0)) { 12826 struct callout *callout; 12827 12828 callout = (struct callout *)&io->io_hdr.timer_bytes; 12829 callout_init(callout, /*mpsafe*/ 1); 12830 io->io_hdr.flags |= CTL_FLAG_DELAY_DONE; 12831 callout_reset(callout, 12832 lun->delay_info.datamove_delay * hz, 12833 ctl_datamove_timer_wakeup, io); 12834 if (lun->delay_info.datamove_type == 12835 CTL_DELAY_TYPE_ONESHOT) 12836 lun->delay_info.datamove_delay = 0; 12837 return; 12838 } 12839 } 12840#endif 12841 12842 /* 12843 * This command has been aborted. Set the port status, so we fail 12844 * the data move. 12845 */ 12846 if (io->io_hdr.flags & CTL_FLAG_ABORT) { 12847 printf("ctl_datamove: tag 0x%04x on (%ju:%d:%ju:%d) aborted\n", 12848 io->scsiio.tag_num,(uintmax_t)io->io_hdr.nexus.initid.id, 12849 io->io_hdr.nexus.targ_port, 12850 (uintmax_t)io->io_hdr.nexus.targ_target.id, 12851 io->io_hdr.nexus.targ_lun); 12852 io->io_hdr.port_status = 31337; 12853 /* 12854 * Note that the backend, in this case, will get the 12855 * callback in its context. In other cases it may get 12856 * called in the frontend's interrupt thread context. 12857 */ 12858 io->scsiio.be_move_done(io); 12859 return; 12860 } 12861 12862 /* Don't confuse frontend with zero length data move. */ 12863 if (io->scsiio.kern_data_len == 0) { 12864 io->scsiio.be_move_done(io); 12865 return; 12866 } 12867 12868 /* 12869 * If we're in XFER mode and this I/O is from the other shelf 12870 * controller, we need to send the DMA to the other side to 12871 * actually transfer the data to/from the host. In serialize only 12872 * mode the transfer happens below CTL and ctl_datamove() is only 12873 * called on the machine that originally received the I/O. 12874 */ 12875 if ((control_softc->ha_mode == CTL_HA_MODE_XFER) 12876 && (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)) { 12877 union ctl_ha_msg msg; 12878 uint32_t sg_entries_sent; 12879 int do_sg_copy; 12880 int i; 12881 12882 memset(&msg, 0, sizeof(msg)); 12883 msg.hdr.msg_type = CTL_MSG_DATAMOVE; 12884 msg.hdr.original_sc = io->io_hdr.original_sc; 12885 msg.hdr.serializing_sc = io; 12886 msg.hdr.nexus = io->io_hdr.nexus; 12887 msg.dt.flags = io->io_hdr.flags; 12888 /* 12889 * We convert everything into a S/G list here. We can't 12890 * pass by reference, only by value between controllers. 12891 * So we can't pass a pointer to the S/G list, only as many 12892 * S/G entries as we can fit in here. If it's possible for 12893 * us to get more than CTL_HA_MAX_SG_ENTRIES S/G entries, 12894 * then we need to break this up into multiple transfers. 12895 */ 12896 if (io->scsiio.kern_sg_entries == 0) { 12897 msg.dt.kern_sg_entries = 1; 12898 /* 12899 * If this is in cached memory, flush the cache 12900 * before we send the DMA request to the other 12901 * controller. We want to do this in either the 12902 * read or the write case. The read case is 12903 * straightforward. In the write case, we want to 12904 * make sure nothing is in the local cache that 12905 * could overwrite the DMAed data. 12906 */ 12907 if ((io->io_hdr.flags & CTL_FLAG_NO_DATASYNC) == 0) { 12908 /* 12909 * XXX KDM use bus_dmamap_sync() here. 12910 */ 12911 } 12912 12913 /* 12914 * Convert to a physical address if this is a 12915 * virtual address. 12916 */ 12917 if (io->io_hdr.flags & CTL_FLAG_BUS_ADDR) { 12918 msg.dt.sg_list[0].addr = 12919 io->scsiio.kern_data_ptr; 12920 } else { 12921 /* 12922 * XXX KDM use busdma here! 12923 */ 12924#if 0 12925 msg.dt.sg_list[0].addr = (void *) 12926 vtophys(io->scsiio.kern_data_ptr); 12927#endif 12928 } 12929 12930 msg.dt.sg_list[0].len = io->scsiio.kern_data_len; 12931 do_sg_copy = 0; 12932 } else { 12933 struct ctl_sg_entry *sgl; 12934 12935 do_sg_copy = 1; 12936 msg.dt.kern_sg_entries = io->scsiio.kern_sg_entries; 12937 sgl = (struct ctl_sg_entry *)io->scsiio.kern_data_ptr; 12938 if ((io->io_hdr.flags & CTL_FLAG_NO_DATASYNC) == 0) { 12939 /* 12940 * XXX KDM use bus_dmamap_sync() here. 12941 */ 12942 } 12943 } 12944 12945 msg.dt.kern_data_len = io->scsiio.kern_data_len; 12946 msg.dt.kern_total_len = io->scsiio.kern_total_len; 12947 msg.dt.kern_data_resid = io->scsiio.kern_data_resid; 12948 msg.dt.kern_rel_offset = io->scsiio.kern_rel_offset; 12949 msg.dt.sg_sequence = 0; 12950 12951 /* 12952 * Loop until we've sent all of the S/G entries. On the 12953 * other end, we'll recompose these S/G entries into one 12954 * contiguous list before passing it to the 12955 */ 12956 for (sg_entries_sent = 0; sg_entries_sent < 12957 msg.dt.kern_sg_entries; msg.dt.sg_sequence++) { 12958 msg.dt.cur_sg_entries = ctl_min((sizeof(msg.dt.sg_list)/ 12959 sizeof(msg.dt.sg_list[0])), 12960 msg.dt.kern_sg_entries - sg_entries_sent); 12961 12962 if (do_sg_copy != 0) { 12963 struct ctl_sg_entry *sgl; 12964 int j; 12965 12966 sgl = (struct ctl_sg_entry *) 12967 io->scsiio.kern_data_ptr; 12968 /* 12969 * If this is in cached memory, flush the cache 12970 * before we send the DMA request to the other 12971 * controller. We want to do this in either 12972 * the * read or the write case. The read 12973 * case is straightforward. In the write 12974 * case, we want to make sure nothing is 12975 * in the local cache that could overwrite 12976 * the DMAed data. 12977 */ 12978 12979 for (i = sg_entries_sent, j = 0; 12980 i < msg.dt.cur_sg_entries; i++, j++) { 12981 if ((io->io_hdr.flags & 12982 CTL_FLAG_NO_DATASYNC) == 0) { 12983 /* 12984 * XXX KDM use bus_dmamap_sync() 12985 */ 12986 } 12987 if ((io->io_hdr.flags & 12988 CTL_FLAG_BUS_ADDR) == 0) { 12989 /* 12990 * XXX KDM use busdma. 12991 */ 12992#if 0 12993 msg.dt.sg_list[j].addr =(void *) 12994 vtophys(sgl[i].addr); 12995#endif 12996 } else { 12997 msg.dt.sg_list[j].addr = 12998 sgl[i].addr; 12999 } 13000 msg.dt.sg_list[j].len = sgl[i].len; 13001 } 13002 } 13003 13004 sg_entries_sent += msg.dt.cur_sg_entries; 13005 if (sg_entries_sent >= msg.dt.kern_sg_entries) 13006 msg.dt.sg_last = 1; 13007 else 13008 msg.dt.sg_last = 0; 13009 13010 /* 13011 * XXX KDM drop and reacquire the lock here? 13012 */ 13013 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, 13014 sizeof(msg), 0) > CTL_HA_STATUS_SUCCESS) { 13015 /* 13016 * XXX do something here. 13017 */ 13018 } 13019 13020 msg.dt.sent_sg_entries = sg_entries_sent; 13021 } 13022 io->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 13023 if (io->io_hdr.flags & CTL_FLAG_FAILOVER) 13024 ctl_failover_io(io, /*have_lock*/ 0); 13025 13026 } else { 13027 13028 /* 13029 * Lookup the fe_datamove() function for this particular 13030 * front end. 13031 */ 13032 fe_datamove = 13033 control_softc->ctl_ports[ctl_port_idx(io->io_hdr.nexus.targ_port)]->fe_datamove; 13034 13035 fe_datamove(io); 13036 } 13037} 13038 13039static void 13040ctl_send_datamove_done(union ctl_io *io, int have_lock) 13041{ 13042 union ctl_ha_msg msg; 13043 int isc_status; 13044 13045 memset(&msg, 0, sizeof(msg)); 13046 13047 msg.hdr.msg_type = CTL_MSG_DATAMOVE_DONE; 13048 msg.hdr.original_sc = io; 13049 msg.hdr.serializing_sc = io->io_hdr.serializing_sc; 13050 msg.hdr.nexus = io->io_hdr.nexus; 13051 msg.hdr.status = io->io_hdr.status; 13052 msg.scsi.tag_num = io->scsiio.tag_num; 13053 msg.scsi.tag_type = io->scsiio.tag_type; 13054 msg.scsi.scsi_status = io->scsiio.scsi_status; 13055 memcpy(&msg.scsi.sense_data, &io->scsiio.sense_data, 13056 sizeof(io->scsiio.sense_data)); 13057 msg.scsi.sense_len = io->scsiio.sense_len; 13058 msg.scsi.sense_residual = io->scsiio.sense_residual; 13059 msg.scsi.fetd_status = io->io_hdr.port_status; 13060 msg.scsi.residual = io->scsiio.residual; 13061 io->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 13062 13063 if (io->io_hdr.flags & CTL_FLAG_FAILOVER) { 13064 ctl_failover_io(io, /*have_lock*/ have_lock); 13065 return; 13066 } 13067 13068 isc_status = ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, sizeof(msg), 0); 13069 if (isc_status > CTL_HA_STATUS_SUCCESS) { 13070 /* XXX do something if this fails */ 13071 } 13072 13073} 13074 13075/* 13076 * The DMA to the remote side is done, now we need to tell the other side 13077 * we're done so it can continue with its data movement. 13078 */ 13079static void 13080ctl_datamove_remote_write_cb(struct ctl_ha_dt_req *rq) 13081{ 13082 union ctl_io *io; 13083 13084 io = rq->context; 13085 13086 if (rq->ret != CTL_HA_STATUS_SUCCESS) { 13087 printf("%s: ISC DMA write failed with error %d", __func__, 13088 rq->ret); 13089 ctl_set_internal_failure(&io->scsiio, 13090 /*sks_valid*/ 1, 13091 /*retry_count*/ rq->ret); 13092 } 13093 13094 ctl_dt_req_free(rq); 13095 13096 /* 13097 * In this case, we had to malloc the memory locally. Free it. 13098 */ 13099 if ((io->io_hdr.flags & CTL_FLAG_AUTO_MIRROR) == 0) { 13100 int i; 13101 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 13102 free(io->io_hdr.local_sglist[i].addr, M_CTL); 13103 } 13104 /* 13105 * The data is in local and remote memory, so now we need to send 13106 * status (good or back) back to the other side. 13107 */ 13108 ctl_send_datamove_done(io, /*have_lock*/ 0); 13109} 13110 13111/* 13112 * We've moved the data from the host/controller into local memory. Now we 13113 * need to push it over to the remote controller's memory. 13114 */ 13115static int 13116ctl_datamove_remote_dm_write_cb(union ctl_io *io) 13117{ 13118 int retval; 13119 13120 retval = 0; 13121 13122 retval = ctl_datamove_remote_xfer(io, CTL_HA_DT_CMD_WRITE, 13123 ctl_datamove_remote_write_cb); 13124 13125 return (retval); 13126} 13127 13128static void 13129ctl_datamove_remote_write(union ctl_io *io) 13130{ 13131 int retval; 13132 void (*fe_datamove)(union ctl_io *io); 13133 13134 /* 13135 * - Get the data from the host/HBA into local memory. 13136 * - DMA memory from the local controller to the remote controller. 13137 * - Send status back to the remote controller. 13138 */ 13139 13140 retval = ctl_datamove_remote_sgl_setup(io); 13141 if (retval != 0) 13142 return; 13143 13144 /* Switch the pointer over so the FETD knows what to do */ 13145 io->scsiio.kern_data_ptr = (uint8_t *)io->io_hdr.local_sglist; 13146 13147 /* 13148 * Use a custom move done callback, since we need to send completion 13149 * back to the other controller, not to the backend on this side. 13150 */ 13151 io->scsiio.be_move_done = ctl_datamove_remote_dm_write_cb; 13152 13153 fe_datamove = control_softc->ctl_ports[ctl_port_idx(io->io_hdr.nexus.targ_port)]->fe_datamove; 13154 13155 fe_datamove(io); 13156 13157 return; 13158 13159} 13160 13161static int 13162ctl_datamove_remote_dm_read_cb(union ctl_io *io) 13163{ 13164#if 0 13165 char str[256]; 13166 char path_str[64]; 13167 struct sbuf sb; 13168#endif 13169 13170 /* 13171 * In this case, we had to malloc the memory locally. Free it. 13172 */ 13173 if ((io->io_hdr.flags & CTL_FLAG_AUTO_MIRROR) == 0) { 13174 int i; 13175 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 13176 free(io->io_hdr.local_sglist[i].addr, M_CTL); 13177 } 13178 13179#if 0 13180 scsi_path_string(io, path_str, sizeof(path_str)); 13181 sbuf_new(&sb, str, sizeof(str), SBUF_FIXEDLEN); 13182 sbuf_cat(&sb, path_str); 13183 scsi_command_string(&io->scsiio, NULL, &sb); 13184 sbuf_printf(&sb, "\n"); 13185 sbuf_cat(&sb, path_str); 13186 sbuf_printf(&sb, "Tag: 0x%04x, type %d\n", 13187 io->scsiio.tag_num, io->scsiio.tag_type); 13188 sbuf_cat(&sb, path_str); 13189 sbuf_printf(&sb, "%s: flags %#x, status %#x\n", __func__, 13190 io->io_hdr.flags, io->io_hdr.status); 13191 sbuf_finish(&sb); 13192 printk("%s", sbuf_data(&sb)); 13193#endif 13194 13195 13196 /* 13197 * The read is done, now we need to send status (good or bad) back 13198 * to the other side. 13199 */ 13200 ctl_send_datamove_done(io, /*have_lock*/ 0); 13201 13202 return (0); 13203} 13204 13205static void 13206ctl_datamove_remote_read_cb(struct ctl_ha_dt_req *rq) 13207{ 13208 union ctl_io *io; 13209 void (*fe_datamove)(union ctl_io *io); 13210 13211 io = rq->context; 13212 13213 if (rq->ret != CTL_HA_STATUS_SUCCESS) { 13214 printf("%s: ISC DMA read failed with error %d", __func__, 13215 rq->ret); 13216 ctl_set_internal_failure(&io->scsiio, 13217 /*sks_valid*/ 1, 13218 /*retry_count*/ rq->ret); 13219 } 13220 13221 ctl_dt_req_free(rq); 13222 13223 /* Switch the pointer over so the FETD knows what to do */ 13224 io->scsiio.kern_data_ptr = (uint8_t *)io->io_hdr.local_sglist; 13225 13226 /* 13227 * Use a custom move done callback, since we need to send completion 13228 * back to the other controller, not to the backend on this side. 13229 */ 13230 io->scsiio.be_move_done = ctl_datamove_remote_dm_read_cb; 13231 13232 /* XXX KDM add checks like the ones in ctl_datamove? */ 13233 13234 fe_datamove = control_softc->ctl_ports[ctl_port_idx(io->io_hdr.nexus.targ_port)]->fe_datamove; 13235 13236 fe_datamove(io); 13237} 13238 13239static int 13240ctl_datamove_remote_sgl_setup(union ctl_io *io) 13241{ 13242 struct ctl_sg_entry *local_sglist, *remote_sglist; 13243 struct ctl_sg_entry *local_dma_sglist, *remote_dma_sglist; 13244 struct ctl_softc *softc; 13245 int retval; 13246 int i; 13247 13248 retval = 0; 13249 softc = control_softc; 13250 13251 local_sglist = io->io_hdr.local_sglist; 13252 local_dma_sglist = io->io_hdr.local_dma_sglist; 13253 remote_sglist = io->io_hdr.remote_sglist; 13254 remote_dma_sglist = io->io_hdr.remote_dma_sglist; 13255 13256 if (io->io_hdr.flags & CTL_FLAG_AUTO_MIRROR) { 13257 for (i = 0; i < io->scsiio.kern_sg_entries; i++) { 13258 local_sglist[i].len = remote_sglist[i].len; 13259 13260 /* 13261 * XXX Detect the situation where the RS-level I/O 13262 * redirector on the other side has already read the 13263 * data off of the AOR RS on this side, and 13264 * transferred it to remote (mirror) memory on the 13265 * other side. Since we already have the data in 13266 * memory here, we just need to use it. 13267 * 13268 * XXX KDM this can probably be removed once we 13269 * get the cache device code in and take the 13270 * current AOR implementation out. 13271 */ 13272#ifdef NEEDTOPORT 13273 if ((remote_sglist[i].addr >= 13274 (void *)vtophys(softc->mirr->addr)) 13275 && (remote_sglist[i].addr < 13276 ((void *)vtophys(softc->mirr->addr) + 13277 CacheMirrorOffset))) { 13278 local_sglist[i].addr = remote_sglist[i].addr - 13279 CacheMirrorOffset; 13280 if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == 13281 CTL_FLAG_DATA_IN) 13282 io->io_hdr.flags |= CTL_FLAG_REDIR_DONE; 13283 } else { 13284 local_sglist[i].addr = remote_sglist[i].addr + 13285 CacheMirrorOffset; 13286 } 13287#endif 13288#if 0 13289 printf("%s: local %p, remote %p, len %d\n", 13290 __func__, local_sglist[i].addr, 13291 remote_sglist[i].addr, local_sglist[i].len); 13292#endif 13293 } 13294 } else { 13295 uint32_t len_to_go; 13296 13297 /* 13298 * In this case, we don't have automatically allocated 13299 * memory for this I/O on this controller. This typically 13300 * happens with internal CTL I/O -- e.g. inquiry, mode 13301 * sense, etc. Anything coming from RAIDCore will have 13302 * a mirror area available. 13303 */ 13304 len_to_go = io->scsiio.kern_data_len; 13305 13306 /* 13307 * Clear the no datasync flag, we have to use malloced 13308 * buffers. 13309 */ 13310 io->io_hdr.flags &= ~CTL_FLAG_NO_DATASYNC; 13311 13312 /* 13313 * The difficult thing here is that the size of the various 13314 * S/G segments may be different than the size from the 13315 * remote controller. That'll make it harder when DMAing 13316 * the data back to the other side. 13317 */ 13318 for (i = 0; (i < sizeof(io->io_hdr.remote_sglist) / 13319 sizeof(io->io_hdr.remote_sglist[0])) && 13320 (len_to_go > 0); i++) { 13321 local_sglist[i].len = ctl_min(len_to_go, 131072); 13322 CTL_SIZE_8B(local_dma_sglist[i].len, 13323 local_sglist[i].len); 13324 local_sglist[i].addr = 13325 malloc(local_dma_sglist[i].len, M_CTL,M_WAITOK); 13326 13327 local_dma_sglist[i].addr = local_sglist[i].addr; 13328 13329 if (local_sglist[i].addr == NULL) { 13330 int j; 13331 13332 printf("malloc failed for %zd bytes!", 13333 local_dma_sglist[i].len); 13334 for (j = 0; j < i; j++) { 13335 free(local_sglist[j].addr, M_CTL); 13336 } 13337 ctl_set_internal_failure(&io->scsiio, 13338 /*sks_valid*/ 1, 13339 /*retry_count*/ 4857); 13340 retval = 1; 13341 goto bailout_error; 13342 13343 } 13344 /* XXX KDM do we need a sync here? */ 13345 13346 len_to_go -= local_sglist[i].len; 13347 } 13348 /* 13349 * Reset the number of S/G entries accordingly. The 13350 * original number of S/G entries is available in 13351 * rem_sg_entries. 13352 */ 13353 io->scsiio.kern_sg_entries = i; 13354 13355#if 0 13356 printf("%s: kern_sg_entries = %d\n", __func__, 13357 io->scsiio.kern_sg_entries); 13358 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 13359 printf("%s: sg[%d] = %p, %d (DMA: %d)\n", __func__, i, 13360 local_sglist[i].addr, local_sglist[i].len, 13361 local_dma_sglist[i].len); 13362#endif 13363 } 13364 13365 13366 return (retval); 13367 13368bailout_error: 13369 13370 ctl_send_datamove_done(io, /*have_lock*/ 0); 13371 13372 return (retval); 13373} 13374 13375static int 13376ctl_datamove_remote_xfer(union ctl_io *io, unsigned command, 13377 ctl_ha_dt_cb callback) 13378{ 13379 struct ctl_ha_dt_req *rq; 13380 struct ctl_sg_entry *remote_sglist, *local_sglist; 13381 struct ctl_sg_entry *remote_dma_sglist, *local_dma_sglist; 13382 uint32_t local_used, remote_used, total_used; 13383 int retval; 13384 int i, j; 13385 13386 retval = 0; 13387 13388 rq = ctl_dt_req_alloc(); 13389 13390 /* 13391 * If we failed to allocate the request, and if the DMA didn't fail 13392 * anyway, set busy status. This is just a resource allocation 13393 * failure. 13394 */ 13395 if ((rq == NULL) 13396 && ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE)) 13397 ctl_set_busy(&io->scsiio); 13398 13399 if ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE) { 13400 13401 if (rq != NULL) 13402 ctl_dt_req_free(rq); 13403 13404 /* 13405 * The data move failed. We need to return status back 13406 * to the other controller. No point in trying to DMA 13407 * data to the remote controller. 13408 */ 13409 13410 ctl_send_datamove_done(io, /*have_lock*/ 0); 13411 13412 retval = 1; 13413 13414 goto bailout; 13415 } 13416 13417 local_sglist = io->io_hdr.local_sglist; 13418 local_dma_sglist = io->io_hdr.local_dma_sglist; 13419 remote_sglist = io->io_hdr.remote_sglist; 13420 remote_dma_sglist = io->io_hdr.remote_dma_sglist; 13421 local_used = 0; 13422 remote_used = 0; 13423 total_used = 0; 13424 13425 if (io->io_hdr.flags & CTL_FLAG_REDIR_DONE) { 13426 rq->ret = CTL_HA_STATUS_SUCCESS; 13427 rq->context = io; 13428 callback(rq); 13429 goto bailout; 13430 } 13431 13432 /* 13433 * Pull/push the data over the wire from/to the other controller. 13434 * This takes into account the possibility that the local and 13435 * remote sglists may not be identical in terms of the size of 13436 * the elements and the number of elements. 13437 * 13438 * One fundamental assumption here is that the length allocated for 13439 * both the local and remote sglists is identical. Otherwise, we've 13440 * essentially got a coding error of some sort. 13441 */ 13442 for (i = 0, j = 0; total_used < io->scsiio.kern_data_len; ) { 13443 int isc_ret; 13444 uint32_t cur_len, dma_length; 13445 uint8_t *tmp_ptr; 13446 13447 rq->id = CTL_HA_DATA_CTL; 13448 rq->command = command; 13449 rq->context = io; 13450 13451 /* 13452 * Both pointers should be aligned. But it is possible 13453 * that the allocation length is not. They should both 13454 * also have enough slack left over at the end, though, 13455 * to round up to the next 8 byte boundary. 13456 */ 13457 cur_len = ctl_min(local_sglist[i].len - local_used, 13458 remote_sglist[j].len - remote_used); 13459 13460 /* 13461 * In this case, we have a size issue and need to decrease 13462 * the size, except in the case where we actually have less 13463 * than 8 bytes left. In that case, we need to increase 13464 * the DMA length to get the last bit. 13465 */ 13466 if ((cur_len & 0x7) != 0) { 13467 if (cur_len > 0x7) { 13468 cur_len = cur_len - (cur_len & 0x7); 13469 dma_length = cur_len; 13470 } else { 13471 CTL_SIZE_8B(dma_length, cur_len); 13472 } 13473 13474 } else 13475 dma_length = cur_len; 13476 13477 /* 13478 * If we had to allocate memory for this I/O, instead of using 13479 * the non-cached mirror memory, we'll need to flush the cache 13480 * before trying to DMA to the other controller. 13481 * 13482 * We could end up doing this multiple times for the same 13483 * segment if we have a larger local segment than remote 13484 * segment. That shouldn't be an issue. 13485 */ 13486 if ((io->io_hdr.flags & CTL_FLAG_NO_DATASYNC) == 0) { 13487 /* 13488 * XXX KDM use bus_dmamap_sync() here. 13489 */ 13490 } 13491 13492 rq->size = dma_length; 13493 13494 tmp_ptr = (uint8_t *)local_sglist[i].addr; 13495 tmp_ptr += local_used; 13496 13497 /* Use physical addresses when talking to ISC hardware */ 13498 if ((io->io_hdr.flags & CTL_FLAG_BUS_ADDR) == 0) { 13499 /* XXX KDM use busdma */ 13500#if 0 13501 rq->local = vtophys(tmp_ptr); 13502#endif 13503 } else 13504 rq->local = tmp_ptr; 13505 13506 tmp_ptr = (uint8_t *)remote_sglist[j].addr; 13507 tmp_ptr += remote_used; 13508 rq->remote = tmp_ptr; 13509 13510 rq->callback = NULL; 13511 13512 local_used += cur_len; 13513 if (local_used >= local_sglist[i].len) { 13514 i++; 13515 local_used = 0; 13516 } 13517 13518 remote_used += cur_len; 13519 if (remote_used >= remote_sglist[j].len) { 13520 j++; 13521 remote_used = 0; 13522 } 13523 total_used += cur_len; 13524 13525 if (total_used >= io->scsiio.kern_data_len) 13526 rq->callback = callback; 13527 13528 if ((rq->size & 0x7) != 0) { 13529 printf("%s: warning: size %d is not on 8b boundary\n", 13530 __func__, rq->size); 13531 } 13532 if (((uintptr_t)rq->local & 0x7) != 0) { 13533 printf("%s: warning: local %p not on 8b boundary\n", 13534 __func__, rq->local); 13535 } 13536 if (((uintptr_t)rq->remote & 0x7) != 0) { 13537 printf("%s: warning: remote %p not on 8b boundary\n", 13538 __func__, rq->local); 13539 } 13540#if 0 13541 printf("%s: %s: local %#x remote %#x size %d\n", __func__, 13542 (command == CTL_HA_DT_CMD_WRITE) ? "WRITE" : "READ", 13543 rq->local, rq->remote, rq->size); 13544#endif 13545 13546 isc_ret = ctl_dt_single(rq); 13547 if (isc_ret == CTL_HA_STATUS_WAIT) 13548 continue; 13549 13550 if (isc_ret == CTL_HA_STATUS_DISCONNECT) { 13551 rq->ret = CTL_HA_STATUS_SUCCESS; 13552 } else { 13553 rq->ret = isc_ret; 13554 } 13555 callback(rq); 13556 goto bailout; 13557 } 13558 13559bailout: 13560 return (retval); 13561 13562} 13563 13564static void 13565ctl_datamove_remote_read(union ctl_io *io) 13566{ 13567 int retval; 13568 int i; 13569 13570 /* 13571 * This will send an error to the other controller in the case of a 13572 * failure. 13573 */ 13574 retval = ctl_datamove_remote_sgl_setup(io); 13575 if (retval != 0) 13576 return; 13577 13578 retval = ctl_datamove_remote_xfer(io, CTL_HA_DT_CMD_READ, 13579 ctl_datamove_remote_read_cb); 13580 if ((retval != 0) 13581 && ((io->io_hdr.flags & CTL_FLAG_AUTO_MIRROR) == 0)) { 13582 /* 13583 * Make sure we free memory if there was an error.. The 13584 * ctl_datamove_remote_xfer() function will send the 13585 * datamove done message, or call the callback with an 13586 * error if there is a problem. 13587 */ 13588 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 13589 free(io->io_hdr.local_sglist[i].addr, M_CTL); 13590 } 13591 13592 return; 13593} 13594 13595/* 13596 * Process a datamove request from the other controller. This is used for 13597 * XFER mode only, not SER_ONLY mode. For writes, we DMA into local memory 13598 * first. Once that is complete, the data gets DMAed into the remote 13599 * controller's memory. For reads, we DMA from the remote controller's 13600 * memory into our memory first, and then move it out to the FETD. 13601 */ 13602static void 13603ctl_datamove_remote(union ctl_io *io) 13604{ 13605 struct ctl_softc *softc; 13606 13607 softc = control_softc; 13608 13609 mtx_assert(&softc->ctl_lock, MA_NOTOWNED); 13610 13611 /* 13612 * Note that we look for an aborted I/O here, but don't do some of 13613 * the other checks that ctl_datamove() normally does. 13614 * We don't need to run the datamove delay code, since that should 13615 * have been done if need be on the other controller. 13616 */ 13617 if (io->io_hdr.flags & CTL_FLAG_ABORT) { 13618 printf("%s: tag 0x%04x on (%d:%d:%d:%d) aborted\n", __func__, 13619 io->scsiio.tag_num, io->io_hdr.nexus.initid.id, 13620 io->io_hdr.nexus.targ_port, 13621 io->io_hdr.nexus.targ_target.id, 13622 io->io_hdr.nexus.targ_lun); 13623 io->io_hdr.port_status = 31338; 13624 ctl_send_datamove_done(io, /*have_lock*/ 0); 13625 return; 13626 } 13627 13628 if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_OUT) { 13629 ctl_datamove_remote_write(io); 13630 } else if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_IN){ 13631 ctl_datamove_remote_read(io); 13632 } else { 13633 union ctl_ha_msg msg; 13634 struct scsi_sense_data *sense; 13635 uint8_t sks[3]; 13636 int retry_count; 13637 13638 memset(&msg, 0, sizeof(msg)); 13639 13640 msg.hdr.msg_type = CTL_MSG_BAD_JUJU; 13641 msg.hdr.status = CTL_SCSI_ERROR; 13642 msg.scsi.scsi_status = SCSI_STATUS_CHECK_COND; 13643 13644 retry_count = 4243; 13645 13646 sense = &msg.scsi.sense_data; 13647 sks[0] = SSD_SCS_VALID; 13648 sks[1] = (retry_count >> 8) & 0xff; 13649 sks[2] = retry_count & 0xff; 13650 13651 /* "Internal target failure" */ 13652 scsi_set_sense_data(sense, 13653 /*sense_format*/ SSD_TYPE_NONE, 13654 /*current_error*/ 1, 13655 /*sense_key*/ SSD_KEY_HARDWARE_ERROR, 13656 /*asc*/ 0x44, 13657 /*ascq*/ 0x00, 13658 /*type*/ SSD_ELEM_SKS, 13659 /*size*/ sizeof(sks), 13660 /*data*/ sks, 13661 SSD_ELEM_NONE); 13662 13663 io->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 13664 if (io->io_hdr.flags & CTL_FLAG_FAILOVER) { 13665 ctl_failover_io(io, /*have_lock*/ 1); 13666 return; 13667 } 13668 13669 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, sizeof(msg), 0) > 13670 CTL_HA_STATUS_SUCCESS) { 13671 /* XXX KDM what to do if this fails? */ 13672 } 13673 return; 13674 } 13675 13676} 13677 13678static int 13679ctl_process_done(union ctl_io *io) 13680{ 13681 struct ctl_lun *lun; 13682 struct ctl_softc *ctl_softc; 13683 void (*fe_done)(union ctl_io *io); 13684 uint32_t targ_port = ctl_port_idx(io->io_hdr.nexus.targ_port); 13685 13686 CTL_DEBUG_PRINT(("ctl_process_done\n")); 13687 13688 fe_done = 13689 control_softc->ctl_ports[targ_port]->fe_done; 13690 13691#ifdef CTL_TIME_IO 13692 if ((time_uptime - io->io_hdr.start_time) > ctl_time_io_secs) { 13693 char str[256]; 13694 char path_str[64]; 13695 struct sbuf sb; 13696 13697 ctl_scsi_path_string(io, path_str, sizeof(path_str)); 13698 sbuf_new(&sb, str, sizeof(str), SBUF_FIXEDLEN); 13699 13700 sbuf_cat(&sb, path_str); 13701 switch (io->io_hdr.io_type) { 13702 case CTL_IO_SCSI: 13703 ctl_scsi_command_string(&io->scsiio, NULL, &sb); 13704 sbuf_printf(&sb, "\n"); 13705 sbuf_cat(&sb, path_str); 13706 sbuf_printf(&sb, "Tag: 0x%04x, type %d\n", 13707 io->scsiio.tag_num, io->scsiio.tag_type); 13708 break; 13709 case CTL_IO_TASK: 13710 sbuf_printf(&sb, "Task I/O type: %d, Tag: 0x%04x, " 13711 "Tag Type: %d\n", io->taskio.task_action, 13712 io->taskio.tag_num, io->taskio.tag_type); 13713 break; 13714 default: 13715 printf("Invalid CTL I/O type %d\n", io->io_hdr.io_type); 13716 panic("Invalid CTL I/O type %d\n", io->io_hdr.io_type); 13717 break; 13718 } 13719 sbuf_cat(&sb, path_str); 13720 sbuf_printf(&sb, "ctl_process_done: %jd seconds\n", 13721 (intmax_t)time_uptime - io->io_hdr.start_time); 13722 sbuf_finish(&sb); 13723 printf("%s", sbuf_data(&sb)); 13724 } 13725#endif /* CTL_TIME_IO */ 13726 13727 switch (io->io_hdr.io_type) { 13728 case CTL_IO_SCSI: 13729 break; 13730 case CTL_IO_TASK: 13731 if (bootverbose || (ctl_debug & CTL_DEBUG_INFO)) 13732 ctl_io_error_print(io, NULL); 13733 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) 13734 ctl_free_io(io); 13735 else 13736 fe_done(io); 13737 return (CTL_RETVAL_COMPLETE); 13738 default: 13739 panic("ctl_process_done: invalid io type %d\n", 13740 io->io_hdr.io_type); 13741 break; /* NOTREACHED */ 13742 } 13743 13744 lun = (struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 13745 if (lun == NULL) { 13746 CTL_DEBUG_PRINT(("NULL LUN for lun %d\n", 13747 io->io_hdr.nexus.targ_mapped_lun)); 13748 fe_done(io); 13749 goto bailout; 13750 } 13751 ctl_softc = lun->ctl_softc; 13752 13753 mtx_lock(&lun->lun_lock); 13754 13755 /* 13756 * Check to see if we have any errors to inject here. We only 13757 * inject errors for commands that don't already have errors set. 13758 */ 13759 if ((STAILQ_FIRST(&lun->error_list) != NULL) 13760 && ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS)) 13761 ctl_inject_error(lun, io); 13762 13763 /* 13764 * XXX KDM how do we treat commands that aren't completed 13765 * successfully? 13766 * 13767 * XXX KDM should we also track I/O latency? 13768 */ 13769 if ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS && 13770 io->io_hdr.io_type == CTL_IO_SCSI) { 13771#ifdef CTL_TIME_IO 13772 struct bintime cur_bt; 13773#endif 13774 int type; 13775 13776 if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == 13777 CTL_FLAG_DATA_IN) 13778 type = CTL_STATS_READ; 13779 else if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == 13780 CTL_FLAG_DATA_OUT) 13781 type = CTL_STATS_WRITE; 13782 else 13783 type = CTL_STATS_NO_IO; 13784 13785 lun->stats.ports[targ_port].bytes[type] += 13786 io->scsiio.kern_total_len; 13787 lun->stats.ports[targ_port].operations[type]++; 13788#ifdef CTL_TIME_IO 13789 bintime_add(&lun->stats.ports[targ_port].dma_time[type], 13790 &io->io_hdr.dma_bt); 13791 lun->stats.ports[targ_port].num_dmas[type] += 13792 io->io_hdr.num_dmas; 13793 getbintime(&cur_bt); 13794 bintime_sub(&cur_bt, &io->io_hdr.start_bt); 13795 bintime_add(&lun->stats.ports[targ_port].time[type], &cur_bt); 13796#endif 13797 } 13798 13799 /* 13800 * Remove this from the OOA queue. 13801 */ 13802 TAILQ_REMOVE(&lun->ooa_queue, &io->io_hdr, ooa_links); 13803 13804 /* 13805 * Run through the blocked queue on this LUN and see if anything 13806 * has become unblocked, now that this transaction is done. 13807 */ 13808 ctl_check_blocked(lun); 13809 13810 /* 13811 * If the LUN has been invalidated, free it if there is nothing 13812 * left on its OOA queue. 13813 */ 13814 if ((lun->flags & CTL_LUN_INVALID) 13815 && TAILQ_EMPTY(&lun->ooa_queue)) { 13816 mtx_unlock(&lun->lun_lock); 13817 mtx_lock(&ctl_softc->ctl_lock); 13818 ctl_free_lun(lun); 13819 mtx_unlock(&ctl_softc->ctl_lock); 13820 } else 13821 mtx_unlock(&lun->lun_lock); 13822 13823 /* 13824 * If this command has been aborted, make sure we set the status 13825 * properly. The FETD is responsible for freeing the I/O and doing 13826 * whatever it needs to do to clean up its state. 13827 */ 13828 if (io->io_hdr.flags & CTL_FLAG_ABORT) 13829 ctl_set_task_aborted(&io->scsiio); 13830 13831 /* 13832 * If enabled, print command error status. 13833 * We don't print UAs unless debugging was enabled explicitly. 13834 */ 13835 do { 13836 if ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS) 13837 break; 13838 if (!bootverbose && (ctl_debug & CTL_DEBUG_INFO) == 0) 13839 break; 13840 if ((ctl_debug & CTL_DEBUG_INFO) == 0 && 13841 ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_SCSI_ERROR) && 13842 (io->scsiio.scsi_status == SCSI_STATUS_CHECK_COND)) { 13843 int error_code, sense_key, asc, ascq; 13844 13845 scsi_extract_sense_len(&io->scsiio.sense_data, 13846 io->scsiio.sense_len, &error_code, &sense_key, 13847 &asc, &ascq, /*show_errors*/ 0); 13848 if (sense_key == SSD_KEY_UNIT_ATTENTION) 13849 break; 13850 } 13851 13852 ctl_io_error_print(io, NULL); 13853 } while (0); 13854 13855 /* 13856 * Tell the FETD or the other shelf controller we're done with this 13857 * command. Note that only SCSI commands get to this point. Task 13858 * management commands are completed above. 13859 * 13860 * We only send status to the other controller if we're in XFER 13861 * mode. In SER_ONLY mode, the I/O is done on the controller that 13862 * received the I/O (from CTL's perspective), and so the status is 13863 * generated there. 13864 * 13865 * XXX KDM if we hold the lock here, we could cause a deadlock 13866 * if the frontend comes back in in this context to queue 13867 * something. 13868 */ 13869 if ((ctl_softc->ha_mode == CTL_HA_MODE_XFER) 13870 && (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)) { 13871 union ctl_ha_msg msg; 13872 13873 memset(&msg, 0, sizeof(msg)); 13874 msg.hdr.msg_type = CTL_MSG_FINISH_IO; 13875 msg.hdr.original_sc = io->io_hdr.original_sc; 13876 msg.hdr.nexus = io->io_hdr.nexus; 13877 msg.hdr.status = io->io_hdr.status; 13878 msg.scsi.scsi_status = io->scsiio.scsi_status; 13879 msg.scsi.tag_num = io->scsiio.tag_num; 13880 msg.scsi.tag_type = io->scsiio.tag_type; 13881 msg.scsi.sense_len = io->scsiio.sense_len; 13882 msg.scsi.sense_residual = io->scsiio.sense_residual; 13883 msg.scsi.residual = io->scsiio.residual; 13884 memcpy(&msg.scsi.sense_data, &io->scsiio.sense_data, 13885 sizeof(io->scsiio.sense_data)); 13886 /* 13887 * We copy this whether or not this is an I/O-related 13888 * command. Otherwise, we'd have to go and check to see 13889 * whether it's a read/write command, and it really isn't 13890 * worth it. 13891 */ 13892 memcpy(&msg.scsi.lbalen, 13893 &io->io_hdr.ctl_private[CTL_PRIV_LBA_LEN].bytes, 13894 sizeof(msg.scsi.lbalen)); 13895 13896 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, 13897 sizeof(msg), 0) > CTL_HA_STATUS_SUCCESS) { 13898 /* XXX do something here */ 13899 } 13900 13901 ctl_free_io(io); 13902 } else 13903 fe_done(io); 13904 13905bailout: 13906 13907 return (CTL_RETVAL_COMPLETE); 13908} 13909 13910#ifdef CTL_WITH_CA 13911/* 13912 * Front end should call this if it doesn't do autosense. When the request 13913 * sense comes back in from the initiator, we'll dequeue this and send it. 13914 */ 13915int 13916ctl_queue_sense(union ctl_io *io) 13917{ 13918 struct ctl_lun *lun; 13919 struct ctl_softc *ctl_softc; 13920 uint32_t initidx, targ_lun; 13921 13922 ctl_softc = control_softc; 13923 13924 CTL_DEBUG_PRINT(("ctl_queue_sense\n")); 13925 13926 /* 13927 * LUN lookup will likely move to the ctl_work_thread() once we 13928 * have our new queueing infrastructure (that doesn't put things on 13929 * a per-LUN queue initially). That is so that we can handle 13930 * things like an INQUIRY to a LUN that we don't have enabled. We 13931 * can't deal with that right now. 13932 */ 13933 mtx_lock(&ctl_softc->ctl_lock); 13934 13935 /* 13936 * If we don't have a LUN for this, just toss the sense 13937 * information. 13938 */ 13939 targ_lun = io->io_hdr.nexus.targ_lun; 13940 targ_lun = ctl_map_lun(io->io_hdr.nexus.targ_port, targ_lun); 13941 if ((targ_lun < CTL_MAX_LUNS) 13942 && (ctl_softc->ctl_luns[targ_lun] != NULL)) 13943 lun = ctl_softc->ctl_luns[targ_lun]; 13944 else 13945 goto bailout; 13946 13947 initidx = ctl_get_initindex(&io->io_hdr.nexus); 13948 13949 mtx_lock(&lun->lun_lock); 13950 /* 13951 * Already have CA set for this LUN...toss the sense information. 13952 */ 13953 if (ctl_is_set(lun->have_ca, initidx)) { 13954 mtx_unlock(&lun->lun_lock); 13955 goto bailout; 13956 } 13957 13958 memcpy(&lun->pending_sense[initidx], &io->scsiio.sense_data, 13959 ctl_min(sizeof(lun->pending_sense[initidx]), 13960 sizeof(io->scsiio.sense_data))); 13961 ctl_set_mask(lun->have_ca, initidx); 13962 mtx_unlock(&lun->lun_lock); 13963 13964bailout: 13965 mtx_unlock(&ctl_softc->ctl_lock); 13966 13967 ctl_free_io(io); 13968 13969 return (CTL_RETVAL_COMPLETE); 13970} 13971#endif 13972 13973/* 13974 * Primary command inlet from frontend ports. All SCSI and task I/O 13975 * requests must go through this function. 13976 */ 13977int 13978ctl_queue(union ctl_io *io) 13979{ 13980 struct ctl_softc *ctl_softc; 13981 13982 CTL_DEBUG_PRINT(("ctl_queue cdb[0]=%02X\n", io->scsiio.cdb[0])); 13983 13984 ctl_softc = control_softc; 13985 13986#ifdef CTL_TIME_IO 13987 io->io_hdr.start_time = time_uptime; 13988 getbintime(&io->io_hdr.start_bt); 13989#endif /* CTL_TIME_IO */ 13990 13991 /* Map FE-specific LUN ID into global one. */ 13992 io->io_hdr.nexus.targ_mapped_lun = 13993 ctl_map_lun(io->io_hdr.nexus.targ_port, io->io_hdr.nexus.targ_lun); 13994 13995 switch (io->io_hdr.io_type) { 13996 case CTL_IO_SCSI: 13997 case CTL_IO_TASK: 13998 if (ctl_debug & CTL_DEBUG_CDB) 13999 ctl_io_print(io); 14000 ctl_enqueue_incoming(io); 14001 break; 14002 default: 14003 printf("ctl_queue: unknown I/O type %d\n", io->io_hdr.io_type); 14004 return (EINVAL); 14005 } 14006 14007 return (CTL_RETVAL_COMPLETE); 14008} 14009 14010#ifdef CTL_IO_DELAY 14011static void 14012ctl_done_timer_wakeup(void *arg) 14013{ 14014 union ctl_io *io; 14015 14016 io = (union ctl_io *)arg; 14017 ctl_done(io); 14018} 14019#endif /* CTL_IO_DELAY */ 14020 14021void 14022ctl_done(union ctl_io *io) 14023{ 14024 struct ctl_softc *ctl_softc; 14025 14026 ctl_softc = control_softc; 14027 14028 /* 14029 * Enable this to catch duplicate completion issues. 14030 */ 14031#if 0 14032 if (io->io_hdr.flags & CTL_FLAG_ALREADY_DONE) { 14033 printf("%s: type %d msg %d cdb %x iptl: " 14034 "%d:%d:%d:%d tag 0x%04x " 14035 "flag %#x status %x\n", 14036 __func__, 14037 io->io_hdr.io_type, 14038 io->io_hdr.msg_type, 14039 io->scsiio.cdb[0], 14040 io->io_hdr.nexus.initid.id, 14041 io->io_hdr.nexus.targ_port, 14042 io->io_hdr.nexus.targ_target.id, 14043 io->io_hdr.nexus.targ_lun, 14044 (io->io_hdr.io_type == 14045 CTL_IO_TASK) ? 14046 io->taskio.tag_num : 14047 io->scsiio.tag_num, 14048 io->io_hdr.flags, 14049 io->io_hdr.status); 14050 } else 14051 io->io_hdr.flags |= CTL_FLAG_ALREADY_DONE; 14052#endif 14053 14054 /* 14055 * This is an internal copy of an I/O, and should not go through 14056 * the normal done processing logic. 14057 */ 14058 if (io->io_hdr.flags & CTL_FLAG_INT_COPY) 14059 return; 14060 14061 /* 14062 * We need to send a msg to the serializing shelf to finish the IO 14063 * as well. We don't send a finish message to the other shelf if 14064 * this is a task management command. Task management commands 14065 * aren't serialized in the OOA queue, but rather just executed on 14066 * both shelf controllers for commands that originated on that 14067 * controller. 14068 */ 14069 if ((io->io_hdr.flags & CTL_FLAG_SENT_2OTHER_SC) 14070 && (io->io_hdr.io_type != CTL_IO_TASK)) { 14071 union ctl_ha_msg msg_io; 14072 14073 msg_io.hdr.msg_type = CTL_MSG_FINISH_IO; 14074 msg_io.hdr.serializing_sc = io->io_hdr.serializing_sc; 14075 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_io, 14076 sizeof(msg_io), 0 ) != CTL_HA_STATUS_SUCCESS) { 14077 } 14078 /* continue on to finish IO */ 14079 } 14080#ifdef CTL_IO_DELAY 14081 if (io->io_hdr.flags & CTL_FLAG_DELAY_DONE) { 14082 struct ctl_lun *lun; 14083 14084 lun =(struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 14085 14086 io->io_hdr.flags &= ~CTL_FLAG_DELAY_DONE; 14087 } else { 14088 struct ctl_lun *lun; 14089 14090 lun =(struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 14091 14092 if ((lun != NULL) 14093 && (lun->delay_info.done_delay > 0)) { 14094 struct callout *callout; 14095 14096 callout = (struct callout *)&io->io_hdr.timer_bytes; 14097 callout_init(callout, /*mpsafe*/ 1); 14098 io->io_hdr.flags |= CTL_FLAG_DELAY_DONE; 14099 callout_reset(callout, 14100 lun->delay_info.done_delay * hz, 14101 ctl_done_timer_wakeup, io); 14102 if (lun->delay_info.done_type == CTL_DELAY_TYPE_ONESHOT) 14103 lun->delay_info.done_delay = 0; 14104 return; 14105 } 14106 } 14107#endif /* CTL_IO_DELAY */ 14108 14109 ctl_enqueue_done(io); 14110} 14111 14112int 14113ctl_isc(struct ctl_scsiio *ctsio) 14114{ 14115 struct ctl_lun *lun; 14116 int retval; 14117 14118 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 14119 14120 CTL_DEBUG_PRINT(("ctl_isc: command: %02x\n", ctsio->cdb[0])); 14121 14122 CTL_DEBUG_PRINT(("ctl_isc: calling data_submit()\n")); 14123 14124 retval = lun->backend->data_submit((union ctl_io *)ctsio); 14125 14126 return (retval); 14127} 14128 14129 14130static void 14131ctl_work_thread(void *arg) 14132{ 14133 struct ctl_thread *thr = (struct ctl_thread *)arg; 14134 struct ctl_softc *softc = thr->ctl_softc; 14135 union ctl_io *io; 14136 int retval; 14137 14138 CTL_DEBUG_PRINT(("ctl_work_thread starting\n")); 14139 14140 for (;;) { 14141 retval = 0; 14142 14143 /* 14144 * We handle the queues in this order: 14145 * - ISC 14146 * - done queue (to free up resources, unblock other commands) 14147 * - RtR queue 14148 * - incoming queue 14149 * 14150 * If those queues are empty, we break out of the loop and 14151 * go to sleep. 14152 */ 14153 mtx_lock(&thr->queue_lock); 14154 io = (union ctl_io *)STAILQ_FIRST(&thr->isc_queue); 14155 if (io != NULL) { 14156 STAILQ_REMOVE_HEAD(&thr->isc_queue, links); 14157 mtx_unlock(&thr->queue_lock); 14158 ctl_handle_isc(io); 14159 continue; 14160 } 14161 io = (union ctl_io *)STAILQ_FIRST(&thr->done_queue); 14162 if (io != NULL) { 14163 STAILQ_REMOVE_HEAD(&thr->done_queue, links); 14164 /* clear any blocked commands, call fe_done */ 14165 mtx_unlock(&thr->queue_lock); 14166 retval = ctl_process_done(io); 14167 continue; 14168 } 14169 io = (union ctl_io *)STAILQ_FIRST(&thr->incoming_queue); 14170 if (io != NULL) { 14171 STAILQ_REMOVE_HEAD(&thr->incoming_queue, links); 14172 mtx_unlock(&thr->queue_lock); 14173 if (io->io_hdr.io_type == CTL_IO_TASK) 14174 ctl_run_task(io); 14175 else 14176 ctl_scsiio_precheck(softc, &io->scsiio); 14177 continue; 14178 } 14179 if (!ctl_pause_rtr) { 14180 io = (union ctl_io *)STAILQ_FIRST(&thr->rtr_queue); 14181 if (io != NULL) { 14182 STAILQ_REMOVE_HEAD(&thr->rtr_queue, links); 14183 mtx_unlock(&thr->queue_lock); 14184 retval = ctl_scsiio(&io->scsiio); 14185 if (retval != CTL_RETVAL_COMPLETE) 14186 CTL_DEBUG_PRINT(("ctl_scsiio failed\n")); 14187 continue; 14188 } 14189 } 14190 14191 /* Sleep until we have something to do. */ 14192 mtx_sleep(thr, &thr->queue_lock, PDROP | PRIBIO, "-", 0); 14193 } 14194} 14195 14196static void 14197ctl_lun_thread(void *arg) 14198{ 14199 struct ctl_softc *softc = (struct ctl_softc *)arg; 14200 struct ctl_be_lun *be_lun; 14201 int retval; 14202 14203 CTL_DEBUG_PRINT(("ctl_lun_thread starting\n")); 14204 14205 for (;;) { 14206 retval = 0; 14207 mtx_lock(&softc->ctl_lock); 14208 be_lun = STAILQ_FIRST(&softc->pending_lun_queue); 14209 if (be_lun != NULL) { 14210 STAILQ_REMOVE_HEAD(&softc->pending_lun_queue, links); 14211 mtx_unlock(&softc->ctl_lock); 14212 ctl_create_lun(be_lun); 14213 continue; 14214 } 14215 14216 /* Sleep until we have something to do. */ 14217 mtx_sleep(&softc->pending_lun_queue, &softc->ctl_lock, 14218 PDROP | PRIBIO, "-", 0); 14219 } 14220} 14221 14222static void 14223ctl_thresh_thread(void *arg) 14224{ 14225 struct ctl_softc *softc = (struct ctl_softc *)arg; 14226 struct ctl_lun *lun; 14227 struct ctl_be_lun *be_lun; 14228 struct scsi_da_rw_recovery_page *rwpage; 14229 struct ctl_logical_block_provisioning_page *page; 14230 const char *attr; 14231 uint64_t thres, val; 14232 int i, e; 14233 14234 CTL_DEBUG_PRINT(("ctl_thresh_thread starting\n")); 14235 14236 for (;;) { 14237 mtx_lock(&softc->ctl_lock); 14238 STAILQ_FOREACH(lun, &softc->lun_list, links) { 14239 be_lun = lun->be_lun; 14240 if ((lun->flags & CTL_LUN_DISABLED) || 14241 (lun->flags & CTL_LUN_OFFLINE) || 14242 (be_lun->flags & CTL_LUN_FLAG_UNMAP) == 0 || 14243 lun->backend->lun_attr == NULL) 14244 continue; 14245 rwpage = &lun->mode_pages.rw_er_page[CTL_PAGE_CURRENT]; 14246 if ((rwpage->byte8 & SMS_RWER_LBPERE) == 0) 14247 continue; 14248 e = 0; 14249 page = &lun->mode_pages.lbp_page[CTL_PAGE_CURRENT]; 14250 for (i = 0; i < CTL_NUM_LBP_THRESH; i++) { 14251 if ((page->descr[i].flags & SLBPPD_ENABLED) == 0) 14252 continue; 14253 thres = scsi_4btoul(page->descr[i].count); 14254 thres <<= CTL_LBP_EXPONENT; 14255 switch (page->descr[i].resource) { 14256 case 0x01: 14257 attr = "blocksavail"; 14258 break; 14259 case 0x02: 14260 attr = "blocksused"; 14261 break; 14262 case 0xf1: 14263 attr = "poolblocksavail"; 14264 break; 14265 case 0xf2: 14266 attr = "poolblocksused"; 14267 break; 14268 default: 14269 continue; 14270 } 14271 mtx_unlock(&softc->ctl_lock); // XXX 14272 val = lun->backend->lun_attr( 14273 lun->be_lun->be_lun, attr); 14274 mtx_lock(&softc->ctl_lock); 14275 if (val == UINT64_MAX) 14276 continue; 14277 if ((page->descr[i].flags & SLBPPD_ARMING_MASK) 14278 == SLBPPD_ARMING_INC) 14279 e |= (val >= thres); 14280 else 14281 e |= (val <= thres); 14282 } 14283 mtx_lock(&lun->lun_lock); 14284 if (e) { 14285 if (lun->lasttpt == 0 || 14286 time_uptime - lun->lasttpt >= CTL_LBP_UA_PERIOD) { 14287 lun->lasttpt = time_uptime; 14288 for (i = 0; i < CTL_MAX_INITIATORS; i++) 14289 lun->pending_ua[i] |= 14290 CTL_UA_THIN_PROV_THRES; 14291 } 14292 } else { 14293 lun->lasttpt = 0; 14294 for (i = 0; i < CTL_MAX_INITIATORS; i++) 14295 lun->pending_ua[i] &= ~CTL_UA_THIN_PROV_THRES; 14296 } 14297 mtx_unlock(&lun->lun_lock); 14298 } 14299 mtx_unlock(&softc->ctl_lock); 14300 pause("-", CTL_LBP_PERIOD * hz); 14301 } 14302} 14303 14304static void 14305ctl_enqueue_incoming(union ctl_io *io) 14306{ 14307 struct ctl_softc *softc = control_softc; 14308 struct ctl_thread *thr; 14309 u_int idx; 14310 14311 idx = (io->io_hdr.nexus.targ_port * 127 + 14312 io->io_hdr.nexus.initid.id) % worker_threads; 14313 thr = &softc->threads[idx]; 14314 mtx_lock(&thr->queue_lock); 14315 STAILQ_INSERT_TAIL(&thr->incoming_queue, &io->io_hdr, links); 14316 mtx_unlock(&thr->queue_lock); 14317 wakeup(thr); 14318} 14319 14320static void 14321ctl_enqueue_rtr(union ctl_io *io) 14322{ 14323 struct ctl_softc *softc = control_softc; 14324 struct ctl_thread *thr; 14325 14326 thr = &softc->threads[io->io_hdr.nexus.targ_mapped_lun % worker_threads]; 14327 mtx_lock(&thr->queue_lock); 14328 STAILQ_INSERT_TAIL(&thr->rtr_queue, &io->io_hdr, links); 14329 mtx_unlock(&thr->queue_lock); 14330 wakeup(thr); 14331} 14332 14333static void 14334ctl_enqueue_done(union ctl_io *io) 14335{ 14336 struct ctl_softc *softc = control_softc; 14337 struct ctl_thread *thr; 14338 14339 thr = &softc->threads[io->io_hdr.nexus.targ_mapped_lun % worker_threads]; 14340 mtx_lock(&thr->queue_lock); 14341 STAILQ_INSERT_TAIL(&thr->done_queue, &io->io_hdr, links); 14342 mtx_unlock(&thr->queue_lock); 14343 wakeup(thr); 14344} 14345 14346static void 14347ctl_enqueue_isc(union ctl_io *io) 14348{ 14349 struct ctl_softc *softc = control_softc; 14350 struct ctl_thread *thr; 14351 14352 thr = &softc->threads[io->io_hdr.nexus.targ_mapped_lun % worker_threads]; 14353 mtx_lock(&thr->queue_lock); 14354 STAILQ_INSERT_TAIL(&thr->isc_queue, &io->io_hdr, links); 14355 mtx_unlock(&thr->queue_lock); 14356 wakeup(thr); 14357} 14358 14359/* Initialization and failover */ 14360 14361void 14362ctl_init_isc_msg(void) 14363{ 14364 printf("CTL: Still calling this thing\n"); 14365} 14366 14367/* 14368 * Init component 14369 * Initializes component into configuration defined by bootMode 14370 * (see hasc-sv.c) 14371 * returns hasc_Status: 14372 * OK 14373 * ERROR - fatal error 14374 */ 14375static ctl_ha_comp_status 14376ctl_isc_init(struct ctl_ha_component *c) 14377{ 14378 ctl_ha_comp_status ret = CTL_HA_COMP_STATUS_OK; 14379 14380 c->status = ret; 14381 return ret; 14382} 14383 14384/* Start component 14385 * Starts component in state requested. If component starts successfully, 14386 * it must set its own state to the requestrd state 14387 * When requested state is HASC_STATE_HA, the component may refine it 14388 * by adding _SLAVE or _MASTER flags. 14389 * Currently allowed state transitions are: 14390 * UNKNOWN->HA - initial startup 14391 * UNKNOWN->SINGLE - initial startup when no parter detected 14392 * HA->SINGLE - failover 14393 * returns ctl_ha_comp_status: 14394 * OK - component successfully started in requested state 14395 * FAILED - could not start the requested state, failover may 14396 * be possible 14397 * ERROR - fatal error detected, no future startup possible 14398 */ 14399static ctl_ha_comp_status 14400ctl_isc_start(struct ctl_ha_component *c, ctl_ha_state state) 14401{ 14402 ctl_ha_comp_status ret = CTL_HA_COMP_STATUS_OK; 14403 14404 printf("%s: go\n", __func__); 14405 14406 // UNKNOWN->HA or UNKNOWN->SINGLE (bootstrap) 14407 if (c->state == CTL_HA_STATE_UNKNOWN ) { 14408 ctl_is_single = 0; 14409 if (ctl_ha_msg_create(CTL_HA_CHAN_CTL, ctl_isc_event_handler) 14410 != CTL_HA_STATUS_SUCCESS) { 14411 printf("ctl_isc_start: ctl_ha_msg_create failed.\n"); 14412 ret = CTL_HA_COMP_STATUS_ERROR; 14413 } 14414 } else if (CTL_HA_STATE_IS_HA(c->state) 14415 && CTL_HA_STATE_IS_SINGLE(state)){ 14416 // HA->SINGLE transition 14417 ctl_failover(); 14418 ctl_is_single = 1; 14419 } else { 14420 printf("ctl_isc_start:Invalid state transition %X->%X\n", 14421 c->state, state); 14422 ret = CTL_HA_COMP_STATUS_ERROR; 14423 } 14424 if (CTL_HA_STATE_IS_SINGLE(state)) 14425 ctl_is_single = 1; 14426 14427 c->state = state; 14428 c->status = ret; 14429 return ret; 14430} 14431 14432/* 14433 * Quiesce component 14434 * The component must clear any error conditions (set status to OK) and 14435 * prepare itself to another Start call 14436 * returns ctl_ha_comp_status: 14437 * OK 14438 * ERROR 14439 */ 14440static ctl_ha_comp_status 14441ctl_isc_quiesce(struct ctl_ha_component *c) 14442{ 14443 int ret = CTL_HA_COMP_STATUS_OK; 14444 14445 ctl_pause_rtr = 1; 14446 c->status = ret; 14447 return ret; 14448} 14449 14450struct ctl_ha_component ctl_ha_component_ctlisc = 14451{ 14452 .name = "CTL ISC", 14453 .state = CTL_HA_STATE_UNKNOWN, 14454 .init = ctl_isc_init, 14455 .start = ctl_isc_start, 14456 .quiesce = ctl_isc_quiesce 14457}; 14458 14459/* 14460 * vim: ts=8 14461 */ 14462